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From: Kyle McMartin <kyle@mcmartin.ca>
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Welcome to the new development list for Linux on PA-RISC.

regards,
	Kyle
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From - Thu Nov 08 21:01:48 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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To: kyle@mcmartin.ca (Kyle McMartin)
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> Welcome to the new development list for Linux on PA-RISC.

Hope this list works better.  It appears the old list got really
messed up sometime in early Nov.  The archive for Nov. is wierd.

I'm giving your timer IRQ patch a whirl with 2.6.22.14.  Hoping it might
fix the timeouts that randomly occur in the GCC testsuite and the ocassional
problem with make.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:01:48 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Can my space heater run linux?
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I recently purchased a cheap space heater, it says "a500 9000"
on the side. I think 9000 means BTU, since it heats the room
about as well as my other MAYTAG space heater. I hear that
this space heater is so advanced that it can run linux!?

How do I run linux on my space heater?

Cheers,
Carlos.
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From - Thu Nov 08 21:01:49 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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John et al,

We're currently hitting a gcc bug on hppa64 with both gcc-4.1 and
gcc-4.2. Symptoms are that a build of the ocfs2 module spins
(apparently) forever, I'm leaving a copy building to see if it
eventually makes forward progress.

It's pretty easily reproduceable by building a modular kernel with the
ocfs2 module enabled. Is there anything I can do to help narrow this
down?

make fs/ocfs2/ocfs2.ko:
	!SMP	SMP
32-bit	 y	 y
64-bit	 y	 fails

The troublesome source file appears to be fs/ocfs2/alloc.o, the rest
seem to build fine.

cheers,
	Kyle
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From - Thu Nov 08 21:01:49 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: Can my space heater run linux?
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> I recently purchased a cheap space heater, it says "a500 9000"
> on the side. I think 9000 means BTU, since it heats the room
> about as well as my other MAYTAG space heater. I hear that
> this space heater is so advanced that it can run linux!?
> 
> How do I run linux on my space heater?

Suggest you upgrade to a HP heater.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:01:49 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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On Wed, Dec 05, 2007 at 12:02:19PM -0500, Kyle McMartin wrote:
> The troublesome source file appears to be fs/ocfs2/alloc.o, the rest
> seem to build fine.
> 

Randolph pointed out the "-da" argument to me, the last pass it makes it
to is alloc.c.160r.shorten.

I'll leave this one going to check for forward progress as well.

cheers,
	Kyle
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From - Thu Nov 08 21:01:49 2018
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From: Stan Sieler <sieler@allegro.com>
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Carlos writes:
 
> I recently purchased a cheap space heater, it says "a500 9000"
> on the side. I think 9000 means BTU, since it heats the room
... 
> How do I run linux on my space heater?

Ah...that heater had an innovative heating element.  Despite
being better than other heating elements, HP has stopped making that
element and switched to an "emerging industry standard" element
that isn't quite as easy to use.   The result: many of these older
heaters are showing up in the used/resale/auction marketplace.

While you might be able to install Linux on it, 
I have to warn you: it will probably run "hot".

:)


Note: the above won't read as funny if Carlos wasn't talking about a
real space heater :)

For real HP PA-RISC computers, there's no "space heater" like
a 9000 J280, one of the first 64-bit PA-RISC workstations :)
Turn it on, and it starts blasting heat out the back!

-- 
Stan Sieler
work:     www.allegro.com
personal: www.sieler.com/wanted/index.html  
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From - Thu Nov 08 21:01:49 2018
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> It's pretty easily reproduceable by building a modular kernel with the
> ocfs2 module enabled. Is there anything I can do to help narrow this
> down?

The general process is to determine the compilation command that
fails.  "-da" can be used to determine the last function that's
being compiled.  Then, try to whittle down the testcase to something
that's easier to debug.  That's a good point to submit a GCC PR.

To actually debug the compilation, use "-v" to see the command gcc
uses to run cc1.  Run cc1 under gdb with the arguments shown with
"-v".  However, you probably won't get very far without a version
of cc1 with debug symbols.  It's also easiest to debug cc1 from
stage1 of the GCC bootstrap.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Kyle McMartin a =E9crit :
> John et al,
>=20
> We're currently hitting a gcc bug on hppa64 with both gcc-4.1 and
> gcc-4.2. Symptoms are that a build of the ocfs2 module spins
> (apparently) forever, I'm leaving a copy building to see if it
> eventually makes forward progress.
>=20
> It's pretty easily reproduceable by building a modular kernel with the
> ocfs2 module enabled. Is there anything I can do to help narrow this
> down?
>=20
> make fs/ocfs2/ocfs2.ko:
> 	!SMP	SMP
> 32-bit	 y	 y
> 64-bit	 y	 fails
>=20
> The troublesome source file appears to be fs/ocfs2/alloc.o, the rest
> seem to build fine.

Please note that this bug has been reported sometimes ago in the
upstream bug tracker. See: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D=
31944

Cheers,
Aurelien

--=20
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net


--=20
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> Please note that this bug has been reported sometimes ago in the
> upstream bug tracker. See: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31944

I marked this bug as confirmed and a regression.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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The following changes since commit 09b56adc98e0f8a21644fcb4d20ad367c3fceb55:
  Linus Torvalds (1):
        Linux 2.6.24-rc4

are available in the git repository at:

  /pub/scm/linux/kernel/git/kyle/parisc-2.6.git master

Kyle McMartin (5):
      Revert "[PARISC] import necessary bits of libgcc.a"
      [PARISC] timer interrupt should not be IRQ_DISABLED
      [PARISC] Update parisc-linux MAINTAINERS entries
      [PARISC] print more than one character at a time for pdc console
      [PARISC] lba_pci: pci_claim_resources disabled expansion roms

 MAINTAINERS                           |   10 +-
 arch/parisc/Makefile                  |    2 +-
 arch/parisc/kernel/firmware.c         |   88 +-
 arch/parisc/kernel/irq.c              |    2 +-
 arch/parisc/kernel/parisc_ksyms.c     |   22 +
 arch/parisc/kernel/pdc_cons.c         |   11 +-
 arch/parisc/lib/Makefile              |    2 +-
 arch/parisc/lib/libgcc/Makefile       |    4 -
 arch/parisc/lib/libgcc/__ashldi3.c    |   19 -
 arch/parisc/lib/libgcc/__ashrdi3.c    |   19 -
 arch/parisc/lib/libgcc/__clzsi2.c     |   30 -
 arch/parisc/lib/libgcc/__divdi3.c     |   23 -
 arch/parisc/lib/libgcc/__divsi3.c     |   23 -
 arch/parisc/lib/libgcc/__lshrdi3.c    |   19 -
 arch/parisc/lib/libgcc/__moddi3.c     |   23 -
 arch/parisc/lib/libgcc/__modsi3.c     |   23 -
 arch/parisc/lib/libgcc/__muldi3.c     |   22 -
 arch/parisc/lib/libgcc/__udivdi3.c    |    7 -
 arch/parisc/lib/libgcc/__udivmoddi4.c |   31 -
 arch/parisc/lib/libgcc/__udivmodsi4.c |   31 -
 arch/parisc/lib/libgcc/__udivsi3.c    |    7 -
 arch/parisc/lib/libgcc/__umoddi3.c    |   10 -
 arch/parisc/lib/libgcc/__umodsi3.c    |   10 -
 arch/parisc/lib/libgcc/__umulsidi3.c  |   46 -
 arch/parisc/lib/libgcc/libgcc.h       |   32 -
 arch/parisc/lib/milli/Makefile        |    1 -
 arch/parisc/lib/milli/divI.S          |  254 ----
 arch/parisc/lib/milli/divU.S          |  235 ----
 arch/parisc/lib/milli/div_const.S     |  682 -----------
 arch/parisc/lib/milli/dyncall.S       |   32 -
 arch/parisc/lib/milli/milli.S         | 2071 ---------------------------------
 arch/parisc/lib/milli/milli.h         |  165 ---
 arch/parisc/lib/milli/mulI.S          |  474 --------
 arch/parisc/lib/milli/remI.S          |  185 ---
 arch/parisc/lib/milli/remU.S          |  148 ---
 drivers/parisc/lba_pci.c              |   10 +-
 include/asm-parisc/pdc.h              |    3 +-
 37 files changed, 73 insertions(+), 4703 deletions(-)
 delete mode 100644 arch/parisc/lib/libgcc/Makefile
 delete mode 100644 arch/parisc/lib/libgcc/__ashldi3.c
 delete mode 100644 arch/parisc/lib/libgcc/__ashrdi3.c
 delete mode 100644 arch/parisc/lib/libgcc/__clzsi2.c
 delete mode 100644 arch/parisc/lib/libgcc/__divdi3.c
 delete mode 100644 arch/parisc/lib/libgcc/__divsi3.c
 delete mode 100644 arch/parisc/lib/libgcc/__lshrdi3.c
 delete mode 100644 arch/parisc/lib/libgcc/__moddi3.c
 delete mode 100644 arch/parisc/lib/libgcc/__modsi3.c
 delete mode 100644 arch/parisc/lib/libgcc/__muldi3.c
 delete mode 100644 arch/parisc/lib/libgcc/__udivdi3.c
 delete mode 100644 arch/parisc/lib/libgcc/__udivmoddi4.c
 delete mode 100644 arch/parisc/lib/libgcc/__udivmodsi4.c
 delete mode 100644 arch/parisc/lib/libgcc/__udivsi3.c
 delete mode 100644 arch/parisc/lib/libgcc/__umoddi3.c
 delete mode 100644 arch/parisc/lib/libgcc/__umodsi3.c
 delete mode 100644 arch/parisc/lib/libgcc/__umulsidi3.c
 delete mode 100644 arch/parisc/lib/libgcc/libgcc.h
 delete mode 100644 arch/parisc/lib/milli/Makefile
 delete mode 100644 arch/parisc/lib/milli/divI.S
 delete mode 100644 arch/parisc/lib/milli/divU.S
 delete mode 100644 arch/parisc/lib/milli/div_const.S
 delete mode 100644 arch/parisc/lib/milli/dyncall.S
 delete mode 100644 arch/parisc/lib/milli/milli.S
 delete mode 100644 arch/parisc/lib/milli/milli.h
 delete mode 100644 arch/parisc/lib/milli/mulI.S
 delete mode 100644 arch/parisc/lib/milli/remI.S
 delete mode 100644 arch/parisc/lib/milli/remU.S
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From - Thu Nov 08 21:01:49 2018
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Newsgroups: gmane.linux.ports.parisc
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> I'm giving your timer IRQ patch a whirl with 2.6.22.14.  Hoping it might
> fix the timeouts that randomly occur in the GCC testsuite and the ocassional
> problem with make.

I realized recently that I'm not seeing these timeouts in my UP
testsuite runs.  So, I'm now wondering if this could be due to the
lack of synchonization across CPUs of CR16.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:01:49 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [git patches] parisc fixes for 2.6.24
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Kyle,

> are available in the git repository at:
> 
>   /pub/scm/linux/kernel/git/kyle/parisc-2.6.git master

I built a SMP PA8800 configuration from this respository yesterday.
Aside from the timeout issue that I've mentioned before, I've experienced
erratic login behavior with this new kernel.  I see this in the debug log:

Dec 16 11:28:39 mx3210 kernel:
Dec 16 11:28:39 mx3210 kernel: do_page_fault() pid=1460 command='login' type=15
address=0xff0ca4e0
Dec 16 11:28:39 mx3210 kernel: vm_start = 0xfaf7d000, vm_end = 0xfaf93000
Dec 16 11:28:39 mx3210 kernel:
Dec 16 11:28:39 mx3210 kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Dec 16 11:28:39 mx3210 kernel: PSW: 00000000000011001000000000001111 Not tainted
Dec 16 11:28:39 mx3210 kernel: r00-03  000000ff000c800f 0000000000000000 0000000
0405f3eeb 00000000faf80bc0
Dec 16 11:28:39 mx3210 kernel: r04-07  0000000040631d74 000000006e6f626f 0000000
0ffffffff 0000000000000000
Dec 16 11:28:39 mx3210 kernel: r08-11  0000000000000003 00000000faf80c88 0000000000000000 0000000040002130
Dec 16 11:28:39 mx3210 kernel: r12-15  0000000040634454 0000000000000000 00000000ffffffff 00000000ffffffff
Dec 16 11:28:39 mx3210 kernel: r16-19  000000006e6f626f 0000000040633574 0000000041111008 0000000040631d74
Dec 16 11:28:39 mx3210 kernel: r20-23  0000000004149814 0000000000000000 0000000004149814 0000000000004000
Dec 16 11:28:39 mx3210 kernel: r24-27  0000000000000018 000000004525a820 000000004525a820 0000000000019014
Dec 16 11:28:39 mx3210 kernel: r28-31  0000000004149840 000000000000636b 00000000ff0ca500 0000000041052605
Dec 16 11:28:39 mx3210 kernel: sr00-03  000000000f9f7000 0000000000000000 0000000000000000 000000000f9f7000
Dec 16 11:28:39 mx3210 kernel: sr04-07  000000000f9f7000 000000000f9f7000 000000000f9f7000 000000000f9f7000
Dec 16 11:28:39 mx3210 kernel:
Dec 16 11:28:39 mx3210 kernel:       VZOUICununcqcqcqcqcqcrmunTDVZOUI
Dec 16 11:28:39 mx3210 kernel: FPSR: 00001000000000000000000000000000
Dec 16 11:28:39 mx3210 kernel: FPER1: 00000000
Dec 16 11:28:39 mx3210 kernel: fr00-03  0800000000000000 0000000000000000 0000000000000000 0000000000000000
Dec 16 11:28:39 mx3210 kernel: fr04-07  00000000405cc000 00000000404b3780 00000000404a9780 00000000404a94c0
Dec 16 06:47:38 mx3210 identd[6240]: started
Dec 16 11:28:39 mx3210 kernel:
Dec 16 11:28:39 mx3210 kernel: do_page_fault() pid=1460 command='login' type=15
address=0xff0ca4e0
Dec 16 11:28:39 mx3210 kernel: vm_start = 0xfaf7d000, vm_end = 0xfaf93000
Dec 16 06:47:38 mx3210 identd[6240]: started
Dec 16 11:28:39 mx3210 kernel:
Dec 16 11:28:39 mx3210 kernel: do_page_fault() pid=1460 command='login' type=15 address=0xff0ca4e0
Dec 16 11:28:39 mx3210 kernel: vm_start = 0xfaf7d000, vm_end = 0xfaf93000
Dec 16 11:28:39 mx3210 kernel:
Dec 16 11:28:39 mx3210 kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Dec 16 11:28:39 mx3210 kernel: PSW: 00000000000011001000000000001111 Not tainted
Dec 16 11:28:39 mx3210 kernel: r00-03  000000ff000c800f 0000000000000000 0000000
0405f3eeb 00000000faf80bc0
Dec 16 11:28:39 mx3210 kernel: r04-07  0000000040631d74 000000006e6f626f 0000000
0ffffffff 0000000000000000
Dec 16 11:28:39 mx3210 kernel: r08-11  0000000000000003 00000000faf80c88 0000000000000000 0000000040002130
Dec 16 11:28:39 mx3210 kernel: r12-15  0000000040634454 0000000000000000 00000000ffffffff 00000000ffffffff
Dec 16 11:28:39 mx3210 kernel: r16-19  000000006e6f626f 0000000040633574 0000000041111008 0000000040631d74
Dec 16 11:28:39 mx3210 kernel: r20-23  0000000004149814 0000000000000000 0000000004149814 0000000000004000
Dec 16 11:28:39 mx3210 kernel: r24-27  0000000000000018 000000004525a820 000000004525a820 0000000000019014
Dec 16 11:28:39 mx3210 kernel: r28-31  0000000004149840 000000000000636b 00000000ff0ca500 0000000041052605
Dec 16 11:28:39 mx3210 kernel: sr00-03  000000000f9f7000 0000000000000000 0000000000000000 000000000f9f7000
Dec 16 11:28:39 mx3210 kernel: sr04-07  000000000f9f7000 000000000f9f7000 000000000f9f7000 000000000f9f7000
Dec 16 11:28:39 mx3210 kernel:
Dec 16 11:28:39 mx3210 kernel:       VZOUICununcqcqcqcqcqcrmunTDVZOUI
Dec 16 11:28:39 mx3210 kernel: FPSR: 00001000000000000000000000000000
Dec 16 11:28:39 mx3210 kernel: FPER1: 00000000
Dec 16 11:28:39 mx3210 kernel: fr00-03  0800000000000000 0000000000000000 0000000000000000 0000000000000000
Dec 16 11:28:39 mx3210 kernel: fr04-07  00000000405cc000 00000000404b3780 00000000404a9780 00000000404a94c0
Dec 16 11:28:39 mx3210 kernel: fr08-11  00000000401b195c 0000000000000001 00000000405b9540 0000000000000802
Dec 16 11:28:39 mx3210 kernel: fr12-15  0000000000000001 00000000404a94c0 000000007fc40108 00000000405f3b40
Dec 16 11:28:39 mx3210 kernel: fr16-19  00000000405ef528 fffffffffffff000 0000000000000000 0000000000000802
Dec 16 11:28:39 mx3210 kernel: fr20-23  000000007f4fa000 000000007fc403a8 0000000000000000 00000000cccccccd
Dec 16 11:28:39 mx3210 kernel: fr24-27  000000a355555556 3fe0000000000000 412e848000000000 00000000001e8480
Dec 16 11:28:39 mx3210 kernel: fr28-31  0000000000000802 000000007f4fa000 000000007fc403a8 00000000405b9540
Dec 16 11:28:39 mx3210 kernel:
Dec 16 11:28:39 mx3210 kernel: IASQ: 000000000f9f7000 000000000f9f7000 IAOQ: 00000000405f428b 00000000405f422b
Dec 16 11:28:39 mx3210 kernel:  IIR: 6bd33fc1    ISR: 000000000f9f7000  IOR: 00000000ff0ca4e0
Dec 16 11:28:39 mx3210 kernel:  CPU:        1   CR30: 000000007e380000 CR31: fffffff0f0e098e0
Dec 16 11:28:39 mx3210 kernel:  ORIG_R28: 0000000000000000
Dec 16 11:28:39 mx3210 kernel:  IAOQ[0]: per_cpu__runqueues+0x748/0x14c0
Dec 16 11:28:39 mx3210 kernel:  IAOQ[1]: per_cpu__runqueues+0x6e8/0x14c0
Dec 16 11:28:39 mx3210 kernel:  RP(r2): per_cpu__runqueues+0x3a8/0x14c0

dave@hiauly6:~$ disasm 0x6bd33fc1
   0:   6b d3 3f c1     stw r19,-20(sp)

This insn saves the PIC register.  Typically, this save occurs in
a function's prologue after the new frame is allocated.

The stack pointer (0xff0ca500) is clearly bad:

(gdb) p 0xff0ca500 - 0xfaf7d000
$1 = 68474112 (0x414d500)
(gdb) p 0xff0ca4e0 - 0xfaf7d000
$2 = 68474080
(gdb) p 0xfaf93000 - 0xfaf7d000
$3 = 90112

$ ulimit -s
16384 (kbytes)

It's not clear how the stack pointer got corrupted but it is correctly
rounded.  I haven't seen this problem with my 2.6.22 builds.

I think the following code is the problem.  We seem to just have
done an alloca:

(gdb) disass 0x405f4258 0x405f4298
Dump of assembler code from 0x405f4258 to 0x405f4298:
0x405f4258 <nscd_getgr_r+1628>: cmpb,= r5,ret0,0x405f3fec <nscd_getgr_r+1008>
0x405f425c <nscd_getgr_r+1632>: copy r4,r19
0x405f4260 <nscd_getgr_r+1636>: b,l 0x405f3f14 <nscd_getgr_r+792>,r0
0x405f4264 <nscd_getgr_r+1640>: copy r15,r7
0x405f4268 <nscd_getgr_r+1644>: ldo -38(sp),ret0
0x405f426c <nscd_getgr_r+1648>: depw,z r31,29,30,r20
0x405f4270 <nscd_getgr_r+1652>: stw r20,3c(r3)
0x405f4274 <nscd_getgr_r+1656>: copy ret0,r9
0x405f4278 <nscd_getgr_r+1660>: ldo 46(r20),ret0
0x405f427c <nscd_getgr_r+1664>: depwi 0,31,6,ret0
0x405f4280 <nscd_getgr_r+1668>: add,l sp,ret0,sp
0x405f4284 <nscd_getgr_r+1672>: b,l 0x405f4228 <nscd_getgr_r+1580>,r0
0x405f4288 <nscd_getgr_r+1676>: stw r19,-20(sp)
0x405f428c <nscd_getgr_r+1680>: ldo 46(r22),r20
0x405f4290 <nscd_getgr_r+1684>: depwi 0,31,6,r20
0x405f4294 <nscd_getgr_r+1688>: add,l sp,r20,sp

ret0 is 0x4149840.  So, the previous stack pointer was 0xfaf80cc0.
This is in the vm range.  ret0 is set from r31.  It's not clear
what sets r31 as this block is entered with a branch.

I wasn't able to get an assembly dump with symbols.  We have the
following libraries:

(gdb) info shared
>From        To          Syms Read   Shared Object Library
0x400fe380  0x40116d74  Yes         /lib/ld.so.1
0x4004c9b0  0x40053588  Yes         /lib/libcrypt.so.1
0x4045ff0c  0x404664a4  Yes         /lib/libpam.so.0
0x40301b40  0x40302cb0  Yes         /lib/libpam_misc.so.0
0x4050cb60  0x405fe6e0  Yes         /lib/libc.so.6
0x400e6ce4  0x400e80b0  Yes         /lib/libdl.so.2

The above suggests a bug in the libc nscd support or the kernel
support for it in 2.6.24-rc4.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:01:50 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [git patches] parisc fixes for 2.6.24
Date: Sun, 16 Dec 2007 13:32:15 -0500
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Approved: news@gmane.org
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Sun, Dec 16, 2007 at 01:29:38PM -0500, John David Anglin wrote:
> I built a SMP PA8800 configuration from this respository yesterday.
> Aside from the timeout issue that I've mentioned before, I've experienced
> erratic login behavior with this new kernel.  I see this in the debug log:
> 

is this using debian sid? or testing? possibly during the update to
glibc 2.7 a regression crept in?

cheers,
	kyle
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From - Thu Nov 08 21:01:50 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [git patches] parisc fixes for 2.6.24
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> is this using debian sid? or testing? possibly during the update to
> glibc 2.7 a regression crept in?

It's libc6 2.7-3.  I've remove nscd to see if this goes away.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Signed-off-by: Joe Perches <joe@perches.com>
---
 arch/parisc/kernel/cache.c    |    2 +-
 arch/parisc/kernel/hardware.c |    2 +-
 arch/parisc/kernel/signal.c   |    2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 395bbce..e10d25d 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -305,7 +305,7 @@ flush_user_cache_page_non_current(struct vm_area_struct *vma,
 	/* save the current process space and pgd */
 	unsigned long space = mfsp(3), pgd = mfctl(25);
 
-	/* we don't mind taking interrups since they may not
+	/* we don't mind taking interrupts since they may not
 	 * do anything with user space, but we can't
 	 * be preempted here */
 	preempt_disable();
diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index 04848b2..1909f88 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -1187,7 +1187,7 @@ static struct hp_hardware hp_hardware_list[] __devinitdata = {
 	{HPHW_FIO, 0x005, 0x000A9, 0x00, "AllegroLow Core PCI USB KB"}, 
 	{HPHW_FIO, 0x006, 0x000A9, 0x00, "AllegroHigh Core PCI SuperIO RS-232"}, 
 	{HPHW_FIO, 0x006, 0x000A9, 0x00, "AllegroHigh Core PCI USB KB"}, 
-	{HPHW_FIO, 0x007, 0x000A9, 0x0, "Miscelaneous PCI Plug-in"}, 
+	{HPHW_FIO, 0x007, 0x000A9, 0x0, "Miscellaneous PCI Plug-in"}, 
 	{HPHW_FIO, 0x00A, 0x000A9, 0x0, "Lego 360 Core PCI SuperIO RS-232"}, 
 	{HPHW_FIO, 0x00A, 0x000A9, 0x0, "Lego 360 Core PCI USB KB"}, 
 	{HPHW_FIO, 0x004, 0x00320, 0x0, "Metheus Frame Buffer"}, 
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 2ce3806..58fccc9 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -333,7 +333,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	flush_user_icache_range((unsigned long) &frame->tramp[0],
 			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
 
-	/* TRAMP Words 0-4, Lenght 5 = SIGRESTARTBLOCK_TRAMP
+	/* TRAMP Words 0-4, Length 5 = SIGRESTARTBLOCK_TRAMP
 	 * TRAMP Words 5-9, Length 4 = SIGRETURN_TRAMP
 	 * So the SIGRETURN_TRAMP is at the end of SIGRESTARTBLOCK_TRAMP
 	 */
-- 
1.5.3.7.949.g2221a6

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Signed-off-by: Joe Perches <joe@perches.com>
---
 include/asm-parisc/elf.h     |    2 +-
 include/asm-parisc/linkage.h |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/asm-parisc/elf.h b/include/asm-parisc/elf.h
index f628ac7..8e7946a 100644
--- a/include/asm-parisc/elf.h
+++ b/include/asm-parisc/elf.h
@@ -28,7 +28,7 @@
 #define EFA_PARISC_1_1		    0x0210 /* PA-RISC 1.1 big-endian.  */
 #define EFA_PARISC_2_0		    0x0214 /* PA-RISC 2.0 big-endian.  */
 
-/* Additional section indeces.  */
+/* Additional section indices.  */
 
 #define SHN_PARISC_ANSI_COMMON	0xff00	   /* Section for tenatively declared
 					      symbols in ANSI C.  */
diff --git a/include/asm-parisc/linkage.h b/include/asm-parisc/linkage.h
index ad8cd0d..0b19a72 100644
--- a/include/asm-parisc/linkage.h
+++ b/include/asm-parisc/linkage.h
@@ -8,7 +8,7 @@
 
 /*
  * In parisc assembly a semicolon marks a comment while a
- * exclamation mark is used to seperate independent lines.
+ * exclamation mark is used to separate independent lines.
  */
 #ifdef __ASSEMBLY__
 
-- 
1.5.3.7.949.g2221a6

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Signed-off-by: Joe Perches <joe@perches.com>
---
 arch/parisc/kernel/cache.c    |    2 +-
 arch/parisc/kernel/hardware.c |    2 +-
 arch/parisc/kernel/signal.c   |    2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 395bbce..e10d25d 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -305,7 +305,7 @@ flush_user_cache_page_non_current(struct vm_area_struct *vma,
 	/* save the current process space and pgd */
 	unsigned long space = mfsp(3), pgd = mfctl(25);
 
-	/* we don't mind taking interrups since they may not
+	/* we don't mind taking interrupts since they may not
 	 * do anything with user space, but we can't
 	 * be preempted here */
 	preempt_disable();
diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index 04848b2..1909f88 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -1187,7 +1187,7 @@ static struct hp_hardware hp_hardware_list[] __devinitdata = {
 	{HPHW_FIO, 0x005, 0x000A9, 0x00, "AllegroLow Core PCI USB KB"}, 
 	{HPHW_FIO, 0x006, 0x000A9, 0x00, "AllegroHigh Core PCI SuperIO RS-232"}, 
 	{HPHW_FIO, 0x006, 0x000A9, 0x00, "AllegroHigh Core PCI USB KB"}, 
-	{HPHW_FIO, 0x007, 0x000A9, 0x0, "Miscelaneous PCI Plug-in"}, 
+	{HPHW_FIO, 0x007, 0x000A9, 0x0, "Miscellaneous PCI Plug-in"}, 
 	{HPHW_FIO, 0x00A, 0x000A9, 0x0, "Lego 360 Core PCI SuperIO RS-232"}, 
 	{HPHW_FIO, 0x00A, 0x000A9, 0x0, "Lego 360 Core PCI USB KB"}, 
 	{HPHW_FIO, 0x004, 0x00320, 0x0, "Metheus Frame Buffer"}, 
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 2ce3806..58fccc9 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -333,7 +333,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	flush_user_icache_range((unsigned long) &frame->tramp[0],
 			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
 
-	/* TRAMP Words 0-4, Lenght 5 = SIGRESTARTBLOCK_TRAMP
+	/* TRAMP Words 0-4, Length 5 = SIGRESTARTBLOCK_TRAMP
 	 * TRAMP Words 5-9, Length 4 = SIGRETURN_TRAMP
 	 * So the SIGRETURN_TRAMP is at the end of SIGRESTARTBLOCK_TRAMP
 	 */
-- 
1.5.3.7.949.g2221a6

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Signed-off-by: Joe Perches <joe@perches.com>
---
 include/asm-parisc/elf.h     |    2 +-
 include/asm-parisc/linkage.h |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/asm-parisc/elf.h b/include/asm-parisc/elf.h
index f628ac7..8e7946a 100644
--- a/include/asm-parisc/elf.h
+++ b/include/asm-parisc/elf.h
@@ -28,7 +28,7 @@
 #define EFA_PARISC_1_1		    0x0210 /* PA-RISC 1.1 big-endian.  */
 #define EFA_PARISC_2_0		    0x0214 /* PA-RISC 2.0 big-endian.  */
 
-/* Additional section indeces.  */
+/* Additional section indices.  */
 
 #define SHN_PARISC_ANSI_COMMON	0xff00	   /* Section for tenatively declared
 					      symbols in ANSI C.  */
diff --git a/include/asm-parisc/linkage.h b/include/asm-parisc/linkage.h
index ad8cd0d..0b19a72 100644
--- a/include/asm-parisc/linkage.h
+++ b/include/asm-parisc/linkage.h
@@ -8,7 +8,7 @@
 
 /*
  * In parisc assembly a semicolon marks a comment while a
- * exclamation mark is used to seperate independent lines.
+ * exclamation mark is used to separate independent lines.
  */
 #ifdef __ASSEMBLY__
 
-- 
1.5.3.7.949.g2221a6

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From - Thu Nov 08 21:01:50 2018
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From: Joe Perches <joe@perches.com>
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Subject: [PATCH] drivers/parisc/: Spelling fixes
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Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/parisc/ccio-dma.c |    4 ++--
 drivers/parisc/hppb.c     |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 7c60cbd..ca52307 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -363,7 +363,7 @@ ccio_alloc_range(struct ioc *ioc, size_t size)
 	if (pages_needed <= 8) {
 		/*
 		 * LAN traffic will not thrash the TLB IFF the same NIC
-		 * uses 8 adjacent pages to map seperate payload data.
+		 * uses 8 adjacent pages to map separate payload data.
 		 * ie the same byte in the resource bit map.
 		 */
 #if 0
@@ -1589,7 +1589,7 @@ static int __init ccio_probe(struct parisc_device *dev)
 }
 
 /**
- * ccio_init - ccio initalization procedure.
+ * ccio_init - ccio initialization procedure.
  *
  * Register this driver.
  */
diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c
index a728a7c..65eee67 100644
--- a/drivers/parisc/hppb.c
+++ b/drivers/parisc/hppb.c
@@ -95,7 +95,7 @@ static struct parisc_driver hppb_driver = {
 };
 
 /**
- * hppb_init - HP-PB bus initalization procedure.
+ * hppb_init - HP-PB bus initialization procedure.
  *
  * Register this driver.   
  */
-- 
1.5.3.7.949.g2221a6

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From - Thu Nov 08 21:01:50 2018
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Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/parisc/ccio-dma.c |    4 ++--
 drivers/parisc/hppb.c     |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 7c60cbd..ca52307 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -363,7 +363,7 @@ ccio_alloc_range(struct ioc *ioc, size_t size)
 	if (pages_needed <= 8) {
 		/*
 		 * LAN traffic will not thrash the TLB IFF the same NIC
-		 * uses 8 adjacent pages to map seperate payload data.
+		 * uses 8 adjacent pages to map separate payload data.
 		 * ie the same byte in the resource bit map.
 		 */
 #if 0
@@ -1589,7 +1589,7 @@ static int __init ccio_probe(struct parisc_device *dev)
 }
 
 /**
- * ccio_init - ccio initalization procedure.
+ * ccio_init - ccio initialization procedure.
  *
  * Register this driver.
  */
diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c
index a728a7c..65eee67 100644
--- a/drivers/parisc/hppb.c
+++ b/drivers/parisc/hppb.c
@@ -95,7 +95,7 @@ static struct parisc_driver hppb_driver = {
 };
 
 /**
- * hppb_init - HP-PB bus initalization procedure.
+ * hppb_init - HP-PB bus initialization procedure.
  *
  * Register this driver.   
  */
-- 
1.5.3.7.949.g2221a6

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From - Thu Nov 08 21:01:51 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [git patches] parisc fixes for 2.6.24
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Cc: kyle@hera.kernel.org, linux-parisc@vger.kernel.org
To: kyle@mcmartin.ca (Kyle McMartin)
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> On Sun, Dec 16, 2007 at 01:29:38PM -0500, John David Anglin wrote:
> > I built a SMP PA8800 configuration from this respository yesterday.
> > Aside from the timeout issue that I've mentioned before, I've experienced
> > erratic login behavior with this new kernel.  I see this in the debug log:
> > 
> 
> is this using debian sid? or testing? possibly during the update to
> glibc 2.7 a regression crept in?

Haven't seen any issues after deleting nscd.  However, I built a
kernel defaulted from the 2.6.22 .config on gsyprf11 yesterday.  This
one panics during boot.  It's in /boot/vmlinux-2.6.24-rc4.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:01:51 2018
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Subject: Re: [git patches] parisc fixes for 2.6.24
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On Mon, Dec 17, 2007 at 06:53:48PM -0500, John David Anglin wrote:
> > On Sun, Dec 16, 2007 at 01:29:38PM -0500, John David Anglin wrote:
> > > I built a SMP PA8800 configuration from this respository yesterday.
> > > Aside from the timeout issue that I've mentioned before, I've experienced
> > > erratic login behavior with this new kernel.  I see this in the debug log:
> > > 
> > 
> > is this using debian sid? or testing? possibly during the update to
> > glibc 2.7 a regression crept in?
> 
> Haven't seen any issues after deleting nscd.  However, I built a
> kernel defaulted from the 2.6.22 .config on gsyprf11 yesterday.  This
> one panics during boot.  It's in /boot/vmlinux-2.6.24-rc4.
> 

you need -rc5, iirc i put some changes i nthere too.
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> you need -rc5, iirc i put some changes i nthere too.

This was with kyle/parisc-2.6.git which last changed 11 days ago.  Does
the linux rc5 tree now have all the changes from your branch?

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Dec 17, 2007 at 11:20:15PM -0500, John David Anglin wrote:
> > you need -rc5, iirc i put some changes i nthere too.
> 
> This was with kyle/parisc-2.6.git which last changed 11 days ago.  Does
> the linux rc5 tree now have all the changes from your branch?
> 

yeah, sorry, linus isn't terribly good at replying to pull requests. :)
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On Tue, Dec 18, 2007 at 12:21:12AM -0500, Kyle McMartin wrote:
> On Mon, Dec 17, 2007 at 11:20:15PM -0500, John David Anglin wrote:
> > > you need -rc5, iirc i put some changes i nthere too.
> > 
> > This was with kyle/parisc-2.6.git which last changed 11 days ago.  Does
> > the linux rc5 tree now have all the changes from your branch?
> > 
> 
> yeah, sorry, linus isn't terribly good at replying to pull requests. :)
> 

huh. sorry, i'll put my dunce cap on. there must be further regressions.
:/

i'll muck about tomorrow evening.

cheers,
	kyle
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On Mon, Dec 17, 2007 at 06:53:48PM -0500, John David Anglin wrote:
> > On Sun, Dec 16, 2007 at 01:29:38PM -0500, John David Anglin wrote:
> > > I built a SMP PA8800 configuration from this respository yesterday.
> > > Aside from the timeout issue that I've mentioned before, I've experienced
> > > erratic login behavior with this new kernel.  I see this in the debug log:
> > > 
> > 
> > is this using debian sid? or testing? possibly during the update to
> > glibc 2.7 a regression crept in?
> 
> Haven't seen any issues after deleting nscd.  However, I built a
> kernel defaulted from the 2.6.22 .config on gsyprf11 yesterday.  This
> one panics during boot.  It's in /boot/vmlinux-2.6.24-rc4.
>

sigh, i bet this is 84f4506cb788d85a50c97b399f2999f90e6272b0[1]

does gsyprf11 have a quad port ethernet card installed?

cheers, kyle

1.
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=84f4506cb788d85a50c97b399f2999f90e6272b0
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> sigh, i bet this is 84f4506cb788d85a50c97b399f2999f90e6272b0[1]
> 
> does gsyprf11 have a quad port ethernet card installed?

Not sure of the specifics but I see:
20:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5703X Gigabit Ethernet (rev 02)
30:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5703X Gigabit Ethernet (rev 02)

These devices probably contain a Broadcom switch.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Dec 18, 2007 at 12:33:20AM -0500, John David Anglin wrote:
> > sigh, i bet this is 84f4506cb788d85a50c97b399f2999f90e6272b0[1]
> > 
> > does gsyprf11 have a quad port ethernet card installed?
> 
> Not sure of the specifics but I see:
> 20:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5703X Gigabit Ethernet (rev 02)
> 30:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5703X Gigabit Ethernet (rev 02)
> 
> These devices probably contain a Broadcom switch.
> 

can you post the console log of where it fails and/or try reverting that
changeset and rebuilding? that's the only obvious change that i can
think of causing a panic on boot.

cheers,
	kyle
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On Tue, Dec 18, 2007 at 12:27:50AM -0500, Kyle McMartin wrote:
...
> sigh, i bet this is 84f4506cb788d85a50c97b399f2999f90e6272b0[1]
> does gsyprf11 have a quad port ethernet card installed?

Nope. Eveything on PCI bus 0 is on the motherboard.
It has three addon cards:
-+-[0000:30]-+-00.0  Broadcom Corporation NetXtreme BCM5703X Gigabit Ethernet
 |           +-02.0  LSI Logic / Symbios Logic 53C896/897
 |           \-02.1  LSI Logic / Symbios Logic 53C896/897
 +-[0000:20]---00.0  Broadcom Corporation NetXtreme BCM5703X Gigabit Ethernet

Two tg3 cards and a dual port sym2 card.
"ios" (cupertino test cluster) has a 4-port card if you
want to netboot some kernels on "ios". It's currently sitting at a
PDC prompt.

hth,
grant
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Andrew,
Please include in -mm. "Cosmetic" - but I appreciate correct spelling too.

On Mon, Dec 17, 2007 at 11:30:11AM -0800, Joe Perches wrote:
> 
> Signed-off-by: Joe Perches <joe@perches.com>

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

thanks,
grant

> ---
>  include/asm-parisc/elf.h     |    2 +-
>  include/asm-parisc/linkage.h |    2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/include/asm-parisc/elf.h b/include/asm-parisc/elf.h
> index f628ac7..8e7946a 100644
> --- a/include/asm-parisc/elf.h
> +++ b/include/asm-parisc/elf.h
> @@ -28,7 +28,7 @@
>  #define EFA_PARISC_1_1		    0x0210 /* PA-RISC 1.1 big-endian.  */
>  #define EFA_PARISC_2_0		    0x0214 /* PA-RISC 2.0 big-endian.  */
>  
> -/* Additional section indeces.  */
> +/* Additional section indices.  */
>  
>  #define SHN_PARISC_ANSI_COMMON	0xff00	   /* Section for tenatively declared
>  					      symbols in ANSI C.  */
> diff --git a/include/asm-parisc/linkage.h b/include/asm-parisc/linkage.h
> index ad8cd0d..0b19a72 100644
> --- a/include/asm-parisc/linkage.h
> +++ b/include/asm-parisc/linkage.h
> @@ -8,7 +8,7 @@
>  
>  /*
>   * In parisc assembly a semicolon marks a comment while a
> - * exclamation mark is used to seperate independent lines.
> + * exclamation mark is used to separate independent lines.
>   */
>  #ifdef __ASSEMBLY__
>  
> -- 
> 1.5.3.7.949.g2221a6
> 
> -
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Andrew,
ditto - thanks

On Mon, Dec 17, 2007 at 11:40:10AM -0800, Joe Perches wrote:
> 
> Signed-off-by: Joe Perches <joe@perches.com>

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

thanks again,
grant

> ---
>  drivers/parisc/ccio-dma.c |    4 ++--
>  drivers/parisc/hppb.c     |    2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
> index 7c60cbd..ca52307 100644
> --- a/drivers/parisc/ccio-dma.c
> +++ b/drivers/parisc/ccio-dma.c
> @@ -363,7 +363,7 @@ ccio_alloc_range(struct ioc *ioc, size_t size)
>  	if (pages_needed <= 8) {
>  		/*
>  		 * LAN traffic will not thrash the TLB IFF the same NIC
> -		 * uses 8 adjacent pages to map seperate payload data.
> +		 * uses 8 adjacent pages to map separate payload data.
>  		 * ie the same byte in the resource bit map.
>  		 */
>  #if 0
> @@ -1589,7 +1589,7 @@ static int __init ccio_probe(struct parisc_device *dev)
>  }
>  
>  /**
> - * ccio_init - ccio initalization procedure.
> + * ccio_init - ccio initialization procedure.
>   *
>   * Register this driver.
>   */
> diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c
> index a728a7c..65eee67 100644
> --- a/drivers/parisc/hppb.c
> +++ b/drivers/parisc/hppb.c
> @@ -95,7 +95,7 @@ static struct parisc_driver hppb_driver = {
>  };
>  
>  /**
> - * hppb_init - HP-PB bus initalization procedure.
> + * hppb_init - HP-PB bus initialization procedure.
>   *
>   * Register this driver.   
>   */
> -- 
> 1.5.3.7.949.g2221a6
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In an attempt to move as much common code into include/asm-generic/vmlinux.lds.h
I found that parisc puts __ex_table into writeable data - is there any real
need to this? My intention was to make this part of RODATA...

Thanks, Jan

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On Tue, Dec 18, 2007 at 04:17:08PM +0000, Jan Beulich wrote:
> In an attempt to move as much common code into include/asm-generic/vmlinux.lds.h
> I found that parisc puts __ex_table into writeable data - is there any real
> need to this? My intention was to make this part of RODATA...
> 

likely just an oversight. feel free to proceed with your cleanups, if
anything breaks, i'll squeak eventually. ;-)

cheers,
	kyle
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From - Thu Nov 08 21:01:52 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [git patches] parisc fixes for 2.6.24
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> On Mon, Dec 17, 2007 at 11:20:15PM -0500, John David Anglin wrote:
> > > you need -rc5, iirc i put some changes i nthere too.

Tried -rc6.  It also crashed on boot.  Console log is below.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.14 root@duet Sat Apr  8 16:08:16 EDT 2006

Partition Start(MB) End(MB) Id Type
1               1     191   f0 Palo
2             192    1526   82 swap
3            1527   34732   83 ext2

PALO(F0) partition contains:
PALO is formatted EXT2/3
Command line for kernel: ' root=/dev/sda3 console=ttyS0 palo_kernel=1/vmlinux'
Selected kernel: /vmlinux from partition 1
Selected ramdisk: /initrd.img from partition 1
ELF64 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 5013504 mediaptr 0x1000
Segment 1 load 00608000 size 566144 mediaptr 0x4c9000
Loading ramdisk 3388537 bytes @ 3fcb3000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.24-rc6 (dave@gsyprf11) (gcc version 4.2.3 20071123 (prerelease) (Debian 4.2.2-4)) #1 SMP Fri Dec 21 19:07:38 PST 2007
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00005e30 00000491 00000000 00000001 312b7146 100000f0 00000008 000000b2 000000b2
vers  00000203
CPUID vers 19 rev 8 (0x00000268)
capabilities 0x5
model 9000/800/A500-7X
Memory Ranges:
 0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 MB
 1) Start 0x0000000100000000 End 0x00000001ffffffff Size   4096 MB
 2) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 MB
Total Memory: 8192 MB
initrd: 7fcb3000-7ffee479
initrd: reserving 3fcb3000-3ffee479 (mem_max 200000000)
SMP: bootstrap CPU ID is 0
Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 2068480
Kernel command line:  root=/dev/sda3 console=ttyS0 palo_kernel=1/vmlinux
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
Memory: 8234192k/8388608k available (3309k kernel code, 152804k reserved, 1538k data, 188k init)
virtual kernel memory layout:
  vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
  memory  : 0x0000000040000000 - 0x0000001140000000   (69632 MB)
  .init : 0x0000000040664000 - 0x0000000040693000   ( 188 kB)
  .data : 0x000000004043b568 - 0x00000000405bc000   (1538 kB)
  .text : 0x0000000040100000 - 0x000000004043b568   (3309 kB)
Mount-cache hash table entries: 256
Brought up 1 CPUs
net_namespace: 120 bytes
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Crescendo 750 W2 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5e3, 0x00004 }
2. Crescendo 750 W2 at 0xfffffffffffa2000 [162] { 0, 0x0, 0x5e3, 0x00004 }
3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x09b, 0x00009 }
4. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
5. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
7. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
8. Elroy PCI Bridge at
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************

********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         FLASH     ON         ON
LED State: System Running.  Unexpected Reboot.  Non-critical Error Detected.
Check Chassis and Console Logs for error messages.

processor                 system panic               1B00

***** EARLY BOOT VFP : SYSTEM ALERT *****
SYSTEM NAME: gsyprf11c
DATE: 12/22/2007 TIME: 03:45:54
ALERT LEVEL: 12 = Software failure

REASON FOR ALERT
SOURCE: 1 = processor
SOURCE DETAIL: 1 = processor general   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         FLASH     ON         ON
LED State: System Running.  Unexpected Reboot.  Non-critical Error Detected.
Check Chassis and Console Logs for error messages.

0xA0E000C01100B009 00000000 00000520 - type 20 = major change in system state
0x58E008C01100B009 00006B0B 16032D36 - type 11 = Timestamp 12/22/2007 03:45:54
A/a: ack read of this entry - Q/q: quit Virtual Front Panel Display
Anything else redisplay the log entry
->Choice:Timeout!
*****************************************

***** EARLY BOOT VFP : SYSTEM ALERT *****
SYSTEM NAME: gsyprf11c
DATE: 12/22/2007 TIME: 03:45:55
ALERT LEVEL: 12 = Software failure

REASON FOR ALERT
SOURCE: 1 = processor
SOURCE DETAIL: 1 = processor general   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         FLASH     ON         ON
							 LED State: System Running.  Unexpected Reboot.  Non-critical Error Detected.
Check Chassis and Console Logs for error messages.

0xA0E000C01100B009 00000000 00000520 - type 20 = major change in system state
0x58E008C01100B009 00006B0B 16032D37 - type 11 = Timestamp 12/22/2007 03:45:55
A/a: ack read of this entry - Q/q: quit Virtual Front Panel Display
Anything else redisplay the log entry

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From - Thu Nov 08 21:01:52 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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On Fri, Dec 21, 2007 at 11:02:36PM -0500, John David Anglin wrote:
> > On Mon, Dec 17, 2007 at 11:20:15PM -0500, John David Anglin wrote:
> > > > you need -rc5, iirc i put some changes i nthere too.
> 
> Tried -rc6.  It also crashed on boot.  Console log is below.
> 

i'm confused... my pa8800 box boots fine. i'll poke around a bit later
today.

regards,
	kyle
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From: rubisher <rubisher@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: dma_addr_t: which comment is correct?
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Hello *,

Continuing my blind investigation on ccio-dma stuff, I read those 2 different comments:
in include/asm-parisc/scatterlist.h, scartterlist structure is defined like this:
struct scatterlist {
#ifdef CONFIG_DEBUG_SG
         unsigned long sg_magic;
#endif
         unsigned long page_link;
         unsigned int offset;

         unsigned int length;

         /* an IOVA can be 64-bits on some PA-Risc platforms. */
         dma_addr_t iova;        /* I/O Virtual Address */
         __u32      iova_length; /* bytes mapped */
};

in absolute the comment "an IOVA can be 64-bits on some PA-Risc platforms." seems ok.

but otoh, include/asm-parisc/types.h, defined dma_addr_t like this:

/* Dma addresses are 32-bits wide.  */

typedef u32 dma_addr_t;
typedef u64 dma64_addr_t;

#endif /* __ASSEMBLY__ */

OK it's just a comment but imho there is interesting matter in x86:

typedef u64 dma64_addr_t;
#if defined(CONFIG_X86_64) || defined(CONFIG_HIGHMEM64G)
/* DMA addresses come in 32-bit and 64-bit flavours. */
typedef u64 dma_addr_t;
#else
typedef u32 dma_addr_t;
#endif

But I simply have no idea which "#if defined" would be the most relevant for parisc, any idea?

Cheers,
	r.
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Hello *,

This seems to be missed a while ago ;-)

--- drivers-parisc-iommu-helpers.h-git20071218	2007-12-21 19:02:38.000000000 +0000
+++ drivers-parisc-iommu-helpers.h-git20071218.new	2007-12-22 13:39:04.000000000 +0000
@@ -29,7 +29,7 @@
  		long size;

  		DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
-			   (unsigned long)sg_dma_address(startsg), cnt,
+			   (unsigned long)sg_dma_address(startsg), size,
  			   sg_virt_addr(startsg), startsg->length
  		);
=== <> ===

Cheers,
	r.
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> i'm confused... my pa8800 box boots fine. i'll poke around a bit later
> today.

I think gsyprf11 is a pa8700, 750 MHz.  It boots fine with 2.6.22.x
plus your getdents compat patch.  The config and kernel are in /boot.

My pa8800 boots with 2.6.24*.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:01:52 2018
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On Sat, Dec 22, 2007 at 12:15:31PM +0000, rubisher wrote:
> Hello *,
>
> Continuing my blind investigation on ccio-dma stuff, I read those 2 
> different comments:
> in include/asm-parisc/scatterlist.h, scartterlist structure is defined like 
> this:
> struct scatterlist {
> #ifdef CONFIG_DEBUG_SG
>         unsigned long sg_magic;
> #endif
>         unsigned long page_link;
>         unsigned int offset;
>
>         unsigned int length;
>
>         /* an IOVA can be 64-bits on some PA-Risc platforms. */
>         dma_addr_t iova;        /* I/O Virtual Address */
>         __u32      iova_length; /* bytes mapped */
> };
>
> in absolute the comment "an IOVA can be 64-bits on some PA-Risc platforms." 
> seems ok.

Yes, it's correct. pa8800 allows 64-bit capabale devices to bypass the IOMMU.
But I don't think we allow it yet since we would need to add code that stuffs
the Virtual Index (for DMA to be cache coherent) into the high bits of the IOVA.


> but otoh, include/asm-parisc/types.h, defined dma_addr_t like this:
>
> /* Dma addresses are 32-bits wide.  */
>
> typedef u32 dma_addr_t;
> typedef u64 dma64_addr_t;
>
> #endif /* __ASSEMBLY__ */

Yes, this matches the current implementation.
Adding support for "bypass" on zx1 chipsets (pa8800/pa8900 CPUs) will
require something more clever.

> OK it's just a comment but imho there is interesting matter in x86:
>
> typedef u64 dma64_addr_t;
> #if defined(CONFIG_X86_64) || defined(CONFIG_HIGHMEM64G)
> /* DMA addresses come in 32-bit and 64-bit flavours. */
> typedef u64 dma_addr_t;
> #else
> typedef u32 dma_addr_t;
> #endif
>
> But I simply have no idea which "#if defined" would be the most relevant 
> for parisc, any idea?

u32 is correct now. u64 could be used for 64-bit builds when someone decides
we should bypass the IOMMU to improve DMA mapping/unmapping performance.

3-4 years ago I saw about 3% better performance for Storage Devices
_with_ the IOMMU enabled. IIRC, it was because of coalescing the longer
SG lists into a single IOMMU entry was more efficient for the PCI device.
Smaller, non-contiguous IOs would benefit from IOMMU bypass - e.g. NIC
workloads.

hth,
grant

>
> Cheers,
> 	r.
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Grant Grundler wrote:
> On Sat, Dec 22, 2007 at 12:15:31PM +0000, rubisher wrote:
>> Hello *,
>>
>> Continuing my blind investigation on ccio-dma stuff, I read those 2 
>> different comments:
>> in include/asm-parisc/scatterlist.h, scartterlist structure is defined like 
>> this:
>> struct scatterlist {
>> #ifdef CONFIG_DEBUG_SG
>>         unsigned long sg_magic;
>> #endif
>>         unsigned long page_link;
>>         unsigned int offset;
>>
>>         unsigned int length;
>>
>>         /* an IOVA can be 64-bits on some PA-Risc platforms. */
>>         dma_addr_t iova;        /* I/O Virtual Address */
>>         __u32      iova_length; /* bytes mapped */
>> };
>>
>> in absolute the comment "an IOVA can be 64-bits on some PA-Risc platforms." 
>> seems ok.
> 
> Yes, it's correct. pa8800 allows 64-bit capabale devices to bypass the IOMMU.
> But I don't think we allow it yet since we would need to add code that stuffs
> the Virtual Index (for DMA to be cache coherent) into the high bits of the IOVA.
> 
> 
>> but otoh, include/asm-parisc/types.h, defined dma_addr_t like this:
>>
>> /* Dma addresses are 32-bits wide.  */
>>
>> typedef u32 dma_addr_t;
>> typedef u64 dma64_addr_t;
>>
>> #endif /* __ASSEMBLY__ */
> 
> Yes, this matches the current implementation.
> Adding support for "bypass" on zx1 chipsets (pa8800/pa8900 CPUs) will
> require something more clever.
> 
>> OK it's just a comment but imho there is interesting matter in x86:
>>
>> typedef u64 dma64_addr_t;
>> #if defined(CONFIG_X86_64) || defined(CONFIG_HIGHMEM64G)
>> /* DMA addresses come in 32-bit and 64-bit flavours. */
>> typedef u64 dma_addr_t;
>> #else
>> typedef u32 dma_addr_t;
>> #endif
>>
>> But I simply have no idea which "#if defined" would be the most relevant 
>> for parisc, any idea?
> 
> u32 is correct now. u64 could be used for 64-bit builds when someone decides
> we should bypass the IOMMU to improve DMA mapping/unmapping performance.
> 
> 3-4 years ago I saw about 3% better performance for Storage Devices
> _with_ the IOMMU enabled. IIRC, it was because of coalescing the longer
> SG lists into a single IOMMU entry was more efficient for the PCI device.
> Smaller, non-contiguous IOs would benefit from IOMMU bypass - e.g. NIC
> workloads.
> 
> hth,
> grant
> 
Ok,

btw do you notice how much way are there (in so few lines) to use a unsigned 32bits integer: u32, __u32 but also uint32_t, 
u_int32_t, ...

Is there some advise om the best pratice?

Ah also related to ccio-dma patch test on my c110, it seems that removing DELAYED_RESOURCE_CNT code help a bit this system 
with few ram (64Mb only) to survive a bit longer (enough to debootstrap and download 800Mb to be installed) but that didn't 
make the drill: there are still fs corruption from time to time and some reset on the lasi disk ;-(.
This test just seems to confirm an issue of i/o coherency somewhere but where those rules could be broken???

Merry Xmas,
	r.
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On Sun, Dec 23, 2007 at 10:50:34PM +0000, rubisher wrote:
...
> btw do you notice how much way are there (in so few lines) to use a 
> unsigned 32bits integer: u32, __u32 but also uint32_t, u_int32_t, ...
>
> Is there some advise om the best pratice?

IIRC, Preferred is "u32". But use whatever is consistent with the
file you are editing.

>
> Ah also related to ccio-dma patch test on my c110, it seems that removing 
> DELAYED_RESOURCE_CNT code help a bit this system with few ram (64Mb only) 
> to survive a bit longer (enough to debootstrap and download 800Mb to be 
> installed) but that didn't make the drill: there are still fs corruption 
> from time to time and some reset on the lasi disk ;-(.
> This test just seems to confirm an issue of i/o coherency somewhere but 
> where those rules could be broken???

ISTR Joel Soete reporting problems for CCIO machines as well.
Offhand, I don't know what's wrong and we depend on Ryan Bradetich
and other volunteers to track that down. 

cheers,
grant

>
> Merry Xmas,
> 	r.
> -
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
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On Dec 24, 2007 9:51 AM, Grant Grundler <grundler@parisc-linux.org> wrote:
> On Sun, Dec 23, 2007 at 10:50:34PM +0000, rubisher wrote:
> ...
> > btw do you notice how much way are there (in so few lines) to use a
> > unsigned 32bits integer: u32, __u32 but also uint32_t, u_int32_t, ...
> >
> > Is there some advise om the best pratice?
>
> IIRC, Preferred is "u32". But use whatever is consistent with the
> file you are editing.

IIRC, the __xx variants are to be used for userspace exported headers.
See the comment in include/asm-parisc/types.h

HTH and merry Xmas

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:01:52 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Fwd: [parisc-linux] [PATCH] Section mismatch fix
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Just resending it to our new mailing list (my original mail was eaten by our old list).
Kyle wanted to (partly) add it to his tree, but it's not there yet.

Helge

----------  Forwarded Message  ----------

Subject: [parisc-linux] [PATCH] Section mismatch fix
Date: Saturday 17 November 2007
From: Helge Deller <deller@gmx.de>
To: Kyle McMartin <kyle@parisc-linux.org>, parisc-linux@lists.parisc-linux.org

- move boot_args[] into the init section
- move $global$ into the read_mostly section
- fix the following two section mismatches:
WARNING: vmlinux.o(.text+0x9c): Section mismatch: reference to .init.text:start_kernel (between '$pgt_fill_loop' and '$is_pa20')
WARNING: vmlinux.o(.text+0xa0): Section mismatch: reference to .init.text:start_kernel (between '$pgt_fill_loop' and '$is_pa20')

Signed-off-by: Helge Deller <deller@gmx.de>

 head.S |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index a7b8859..ec2482d 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -20,10 +20,11 @@
 #include <asm/pgtable.h>
 
 #include <linux/linkage.h>
+#include <linux/init.h>
 
 	.level	LEVEL
 
-	.data
+	__INITDATA
 ENTRY(boot_args)
 	.word 0 /* arg0 */
 	.word 0 /* arg1 */
@@ -31,7 +32,7 @@ ENTRY(boot_args)
 	.word 0 /* arg3 */
 END(boot_args)
 
-	.text
+	.section .text.head
 	.align	4
 	.import init_thread_union,data
 	.import fault_vector_20,code    /* IVA parisc 2.0 32 bit */
@@ -343,7 +344,7 @@ smp_slave_stext:
 ENDPROC(stext)
 
 #ifndef CONFIG_64BIT
-	.data
+	.section .data.read_mostly
 
 	.align	4
 	.export	$global$,data
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From - Thu Nov 08 21:01:52 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Fwd: patch for HPUX SOM on non-HPUX systems
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I found this pretty interesting, esp. in case we want to enhance our kernel SOM support in future.
Helge

--------------- Forwarded message (begin)

Subject: patch for HPUX SOM on non-HPUX systems
From: David Leonard <David.Leonard@quest.com>
Date: Wed, 12 Dec 2007 02:23:10 +0100
Newsgroup: gmane.comp.gnu.binutils.bugs

Here is a patch to allow hpux's som target to build on non-hpux hosts. I 
have been using it in a linux x86_64 environment which has a different 
long size and endianness. Also tested on hpux11.00.
Enjoy!

notes:
The patch applies to binutils-2.18, and is licensed under gpl v2.
I was careful to make only minimal changes to som.c.
The header files were re-written by hand, mainly to use preprocessor hex 
constants instead of bit fields. They were cribbed from online 
documentation by hp, and the few missing constants were extracted from 
hpux header files. The bulk of the patch was generated by a perl script 
to perform reliable byte swapping of the structures.
This work is part of a cross compiler effort here at Quest, So, I 
anticipate some more stress testing soon.

Jeff Law wrote:

> The SOM code has never been designed to be cross-compilation safe,
> particularly in terms of endianness and datatype size issues. 
http://sources.redhat.com/ml/binutils/2002-01/msg00168.html

--------------- Forwarded message (end)


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Index: include/som/spacehdr.h
===================================================================
--- include/som/spacehdr.h	(revision 0)
+++ include/som/spacehdr.h	(revision 12)
@@ -0,0 +1,71 @@
+/* Declaration of data structures for the PA-SOM object format.
+   (c) 2007, Quest Software, Inc. All rights reserved.
+   Written by David Leonard based on information published by Hewlett-Packard.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _bfd_som_spacehdr_h
+#define _bfd_som_spacehdr_h
+
+#include "aouttypes.h"
+
+struct space_dictionary_record {
+    union name_pt   name;
+    uint32_t        flags;
+#define SPA_IS_LOADABLE                 0x80000000
+#define SPA_IS_DEFINED                  0x40000000
+#define SPA_IS_PRIVATE                  0x20000000
+#define SPA_HAS_INTERMEDIATE_CODE       0x10000000
+#define SPA_IS_TSPECIFIC                0x08000000
+#define SPA_IS_IGNORE_DBG               0x04000000
+#define SPA_RESERVED_MASK               0x03ff0000
+#define SPA_RESERVED_SHIFT              16
+#define SPA_SORT_KEY_MASK               0x0000ff00
+#define SPA_SORT_KEY_SHIFT              8
+#define SPA_RESERVED2_MASK              0x000000ff
+#define SPA_RESERVED2_SHIFT             0
+    int32_t         space_number;
+    int32_t         subspace_index;
+    uint32_t        subspace_quantity;
+    int32_t         loader_fix_index;
+    uint32_t        loader_fix_quantity;
+    int32_t         init_pointer_index;
+    uint32_t        init_pointer_quantity;
+};
+
+struct internal_space_dictionary_record {
+    union internal_name_pt name;
+    bfd_boolean     is_loadable;
+    bfd_boolean     is_defined;
+    bfd_boolean     is_private;
+    bfd_boolean     has_intermediate_code;
+    bfd_boolean     is_tspecific;
+    bfd_boolean     is_ignore_dbg;
+    uint8_t         sort_key;
+    int32_t         space_number;
+    int32_t         subspace_index;
+    uint32_t        subspace_quantity;
+    int32_t         loader_fix_index;
+    uint32_t        loader_fix_quantity;
+    int32_t         init_pointer_index;
+    uint32_t        init_pointer_quantity;
+};
+
+#define SPAHDR  struct space_dictionary_record
+#define SPAHSZ  sizeof(SPAHDR)
+
+#endif /* _bfd_som_spacehdr_h */
Index: include/som/somswap.h
===================================================================
--- include/som/somswap.h	(revision 0)
+++ include/som/somswap.h	(revision 12)
@@ -0,0 +1,587 @@
+/* Structure swapping functions for accessing the PA-SOM object format.
+   (c) 2007, Quest Software, Inc. All rights reserved.
+   Written by David Leonard based on information published by Hewlett-Packard.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _bfd_som_somswap_h
+#define _bfd_som_somswap_h
+
+/*
+ * Structure swapping.
+ *
+ * SOM structures are 32-bit big-endian. 
+ * 'Internal' structure equivalents are used to hold host
+ * pointers and host-endian integers. In many cases, an 'internal'
+ * structure is not required, because simple byte swapping is sufficient.
+ * However, if the structure contains a pointer, or bit fields, then
+ * an internal structure is provided.
+ * (Bit fields need separate representation because byte swapping doesn't 
+ * work with them.)
+ */
+
+#include "a.out.h"
+#include "lst.h"
+
+static void
+som_bfd_get_sys_clock (bfd * abfd, const struct sys_clock * src, 
+    struct sys_clock * dst)
+{
+    dst->secs     = H_GET_32 (abfd, &src->secs);
+    dst->nanosecs = H_GET_32 (abfd, &src->nanosecs);
+}
+
+static void
+som_bfd_put_sys_clock (bfd * abfd, const struct sys_clock * src, 
+    struct sys_clock * dst)
+{
+    H_PUT_32 (abfd, src->secs, &dst->secs);
+    H_PUT_32 (abfd, src->nanosecs, &dst->nanosecs);
+}
+
+static void
+som_bfd_get_name_pt (bfd * abfd, const union name_pt * src,
+    union internal_name_pt * dst )
+{
+    dst->n_strx = H_GET_32 (abfd, &src->n_strx);
+}
+
+static void
+som_bfd_put_name_pt (bfd * abfd, const union internal_name_pt * src,
+    union name_pt * dst )
+{
+    H_PUT_32 (abfd, src->n_strx, &dst->n_strx);
+}
+
+static void
+som_bfd_get_space_dictionary_record (bfd * abfd, 
+    const struct space_dictionary_record * src,
+    struct internal_space_dictionary_record * dst)
+{
+    uint32_t flags;
+
+    som_bfd_get_name_pt (abfd, &src->name, &dst->name);
+    flags = H_GET_32 (abfd, &src->flags);
+    dst->is_loadable = flags & SPA_IS_LOADABLE;
+    dst->is_defined = flags & SPA_IS_DEFINED;
+    dst->is_private = flags & SPA_IS_PRIVATE;
+    dst->has_intermediate_code = flags & SPA_HAS_INTERMEDIATE_CODE;
+    dst->is_tspecific = flags & SPA_IS_TSPECIFIC;
+    dst->is_ignore_dbg = flags & SPA_IS_IGNORE_DBG;
+    dst->sort_key = (flags & SPA_SORT_KEY_MASK) >> SPA_SORT_KEY_SHIFT;
+    dst->space_number          = H_GET_32 (abfd, &src->init_pointer_quantity);
+    dst->subspace_index        = H_GET_32 (abfd, &src->subspace_index);
+    dst->subspace_quantity     = H_GET_32 (abfd, &src->subspace_quantity);
+    dst->loader_fix_index      = H_GET_32 (abfd, &src->loader_fix_index);
+    dst->loader_fix_quantity   = H_GET_32 (abfd, &src->loader_fix_quantity);
+    dst->init_pointer_index    = H_GET_32 (abfd, &src->init_pointer_index);
+    dst->init_pointer_quantity = H_GET_32 (abfd, &src->init_pointer_quantity);
+}
+
+static void
+som_bfd_put_space_dictionary_record (bfd * abfd, 
+    const struct internal_space_dictionary_record * src,
+    struct space_dictionary_record * dst)
+{
+    uint32_t flags;
+
+    memset (dst, 0, sizeof *dst);
+    som_bfd_put_name_pt (abfd, &src->name, &dst->name);
+    flags = 0;
+    flags |= src->is_loadable ? SPA_IS_LOADABLE : 0;
+    flags |= src->is_defined ? SPA_IS_DEFINED : 0;
+    flags |= src->is_private ? SPA_IS_PRIVATE : 0;
+    flags |= src->has_intermediate_code ? SPA_HAS_INTERMEDIATE_CODE : 0;
+    flags |= src->is_tspecific ? SPA_IS_TSPECIFIC : 0;
+    flags |= src->is_ignore_dbg ? SPA_IS_IGNORE_DBG : 0;
+    flags |= (src->sort_key << SPA_SORT_KEY_SHIFT) & SPA_SORT_KEY_MASK;
+    H_PUT_32 (abfd, flags, &dst->flags);
+    H_PUT_32 (abfd, src->space_number, &dst->space_number);
+    H_PUT_32 (abfd, src->subspace_index, &dst->subspace_index);
+    H_PUT_32 (abfd, src->subspace_quantity, &dst->subspace_quantity);
+    H_PUT_32 (abfd, src->loader_fix_index, &dst->loader_fix_index);
+    H_PUT_32 (abfd, src->loader_fix_quantity, &dst->loader_fix_quantity);
+    H_PUT_32 (abfd, src->init_pointer_index, &dst->init_pointer_index);
+    H_PUT_32 (abfd, src->init_pointer_quantity, &dst->init_pointer_quantity);
+}
+
+static void
+som_bfd_get_subspace_dictionary_record (bfd * abfd, 
+    const struct subspace_dictionary_record * src,
+    struct internal_subspace_dictionary_record * dst)
+{
+    uint32_t flags;
+
+    dst->space_index           = H_GET_32 (abfd, &src->space_index);
+    flags = H_GET_32 (abfd, &src->flags);
+    dst->access_control_bits = (flags & SCN_ACCESS_CONTROL_BITS_MASK) >> SCN_ACCESS_CONTROL_BITS_SHIFT;
+    dst->memory_resident = flags & SCN_MEMORY_RESIDENT;
+    dst->dup_common = flags & SCN_DUP_COMMON;
+    dst->is_common = flags & SCN_IS_COMMON;
+    dst->is_loadable = flags & SCN_IS_LOADABLE;
+    dst->quadrant = (flags & SCN_QUADRANT_MASK) >> SCN_QUADRANT_SHIFT;
+    dst->initially_frozen = flags & SCN_INITIALLY_FROZEN;
+    dst->is_first = flags & SCN_IS_FIRST;
+    dst->code_only = flags & SCN_CODE_ONLY;
+    dst->sort_key  = (flags & SCN_SORT_KEY_MASK) >> SCN_SORT_KEY_SHIFT;
+    dst->replicate_init = flags & SCN_REPLICATE_INIT;
+    dst->continuation = flags & SCN_CONTINUATION;
+    dst->is_tspecific = flags & SCN_IS_TSPECIFIC;
+    dst->is_comdat = flags & SCN_IS_COMDAT;
+    dst->file_loc_init_value   = H_GET_32 (abfd, &src->file_loc_init_value);
+    dst->initialization_length = H_GET_32 (abfd, &src->initialization_length);
+    dst->subspace_start        = H_GET_32 (abfd, &src->subspace_start);
+    dst->subspace_length       = H_GET_32 (abfd, &src->subspace_length);
+    dst->alignment = (H_GET_32 (abfd, &src->flags2) & SCN_ALIGNMENT_MASK)
+			>> SCN_ALIGNMENT_SHIFT;
+    som_bfd_get_name_pt (abfd, &src->name, &dst->name);
+    dst->fixup_request_index   = H_GET_32 (abfd, &src->fixup_request_index);
+    dst->fixup_request_quantity= H_GET_32 (abfd, &src->fixup_request_quantity);
+}
+
+static void
+som_bfd_put_subspace_dictionary_record (bfd * abfd, 
+    const struct internal_subspace_dictionary_record * src,
+    struct subspace_dictionary_record * dst)
+{
+    uint32_t flags;
+
+    memset (dst, 0, sizeof *dst);
+    H_PUT_32 (abfd, src->space_index, &dst->space_index);
+    flags = 0;
+    flags |= (src->access_control_bits << SCN_ACCESS_CONTROL_BITS_SHIFT) & SCN_ACCESS_CONTROL_BITS_MASK;
+    flags |= src->memory_resident ? SCN_MEMORY_RESIDENT : 0;
+    flags |= src->dup_common ? SCN_DUP_COMMON : 0;
+    flags |= src->is_common ? SCN_IS_COMMON : 0;
+    flags |= src->is_loadable ? SCN_IS_LOADABLE : 0;
+    flags |= (src->quadrant << SCN_QUADRANT_SHIFT) & SCN_QUADRANT_MASK;
+    flags |= src->initially_frozen ? SCN_INITIALLY_FROZEN : 0;
+    flags |= src->is_first ? SCN_IS_FIRST : 0;
+    flags |= src->code_only ? SCN_CODE_ONLY : 0;
+    flags |= (src->sort_key << SCN_SORT_KEY_SHIFT) & SCN_SORT_KEY_MASK;
+    flags |= src->replicate_init ? SCN_REPLICATE_INIT : 0;
+    flags |= src->continuation ? SCN_CONTINUATION : 0;
+    flags |= src->is_tspecific ? SCN_IS_TSPECIFIC : 0;
+    flags |= src->is_comdat ? SCN_IS_COMDAT : 0;
+    H_PUT_32 (abfd, flags, &dst->flags);
+    H_PUT_32 (abfd, src->file_loc_init_value, &dst->file_loc_init_value);
+    H_PUT_32 (abfd, src->initialization_length, &dst->initialization_length);
+    H_PUT_32 (abfd, src->subspace_start, &dst->subspace_start);
+    H_PUT_32 (abfd, src->subspace_length, &dst->subspace_length);
+    flags = 0;
+    flags |= (src->alignment << SCN_ALIGNMENT_SHIFT) & SCN_ALIGNMENT_MASK;
+    H_PUT_32 (abfd, flags, &dst->flags2);
+    som_bfd_put_name_pt (abfd, &src->name, &dst->name);
+    H_PUT_32 (abfd, src->fixup_request_index, &dst->fixup_request_index);
+    H_PUT_32 (abfd, src->fixup_request_quantity, &dst->fixup_request_quantity);
+}
+
+static void
+som_bfd_get_header (bfd * abfd, const struct header * src, struct header * dst)
+{
+    dst->system_id = H_GET_16 (abfd, &src->system_id);
+    dst->a_magic = H_GET_16 (abfd, &src->a_magic);
+    dst->version_id = H_GET_32 (abfd, &src->version_id);
+    som_bfd_get_sys_clock (abfd, &src->file_time, &dst->file_time);
+    dst->entry_space = H_GET_32 (abfd, &src->entry_space);
+    dst->entry_subspace = H_GET_32 (abfd, &src->entry_subspace);
+    dst->entry_offset = H_GET_32 (abfd, &src->entry_offset);
+    dst->aux_header_location = H_GET_32 (abfd, &src->aux_header_location);
+    dst->aux_header_size = H_GET_32 (abfd, &src->aux_header_size);
+    dst->som_length = H_GET_32 (abfd, &src->som_length);
+    dst->presumed_dp = H_GET_32 (abfd, &src->presumed_dp);
+    dst->space_location = H_GET_32 (abfd, &src->space_location);
+    dst->space_total = H_GET_32 (abfd, &src->space_total);
+    dst->subspace_location = H_GET_32 (abfd, &src->subspace_location);
+    dst->subspace_total = H_GET_32 (abfd, &src->subspace_total);
+    dst->loader_fixup_location = H_GET_32 (abfd, &src->loader_fixup_location);
+    dst->loader_fixup_total = H_GET_32 (abfd, &src->loader_fixup_total);
+    dst->space_strings_location = H_GET_32 (abfd, &src->space_strings_location);
+    dst->space_strings_size = H_GET_32 (abfd, &src->space_strings_size);
+    dst->init_array_location = H_GET_32 (abfd, &src->init_array_location);
+    dst->init_array_total = H_GET_32 (abfd, &src->init_array_total);
+    dst->compiler_location = H_GET_32 (abfd, &src->compiler_location);
+    dst->compiler_total = H_GET_32 (abfd, &src->compiler_total);
+    dst->symbol_location = H_GET_32 (abfd, &src->symbol_location);
+    dst->symbol_total = H_GET_32 (abfd, &src->symbol_total);
+    dst->fixup_request_location = H_GET_32 (abfd, &src->fixup_request_location);
+    dst->fixup_request_total = H_GET_32 (abfd, &src->fixup_request_total);
+    dst->symbol_strings_location = H_GET_32 (abfd, &src->symbol_strings_location);
+    dst->symbol_strings_size = H_GET_32 (abfd, &src->symbol_strings_size);
+    dst->unloadable_sp_location = H_GET_32 (abfd, &src->unloadable_sp_location);
+    dst->unloadable_sp_size = H_GET_32 (abfd, &src->unloadable_sp_size);
+    dst->checksum = H_GET_32 (abfd, &src->checksum);
+}
+
+static void
+som_bfd_put_header (bfd * abfd, const struct header * src, struct header * dst)
+{
+    H_PUT_16 (abfd, src->system_id, &dst->system_id);
+    H_PUT_16 (abfd, src->a_magic, &dst->a_magic);
+    H_PUT_32 (abfd, src->version_id, &dst->version_id);
+    som_bfd_put_sys_clock (abfd, &src->file_time, &dst->file_time);
+    H_PUT_32 (abfd, src->entry_space, &dst->entry_space);
+    H_PUT_32 (abfd, src->entry_subspace, &dst->entry_subspace);
+    H_PUT_32 (abfd, src->entry_offset, &dst->entry_offset);
+    H_PUT_32 (abfd, src->aux_header_location, &dst->aux_header_location);
+    H_PUT_32 (abfd, src->aux_header_size, &dst->aux_header_size);
+    H_PUT_32 (abfd, src->som_length, &dst->som_length);
+    H_PUT_32 (abfd, src->presumed_dp, &dst->presumed_dp);
+    H_PUT_32 (abfd, src->space_location, &dst->space_location);
+    H_PUT_32 (abfd, src->space_total, &dst->space_total);
+    H_PUT_32 (abfd, src->subspace_location, &dst->subspace_location);
+    H_PUT_32 (abfd, src->subspace_total, &dst->subspace_total);
+    H_PUT_32 (abfd, src->loader_fixup_location, &dst->loader_fixup_location);
+    H_PUT_32 (abfd, src->loader_fixup_total, &dst->loader_fixup_total);
+    H_PUT_32 (abfd, src->space_strings_location, &dst->space_strings_location);
+    H_PUT_32 (abfd, src->space_strings_size, &dst->space_strings_size);
+    H_PUT_32 (abfd, src->init_array_location, &dst->init_array_location);
+    H_PUT_32 (abfd, src->init_array_total, &dst->init_array_total);
+    H_PUT_32 (abfd, src->compiler_location, &dst->compiler_location);
+    H_PUT_32 (abfd, src->compiler_total, &dst->compiler_total);
+    H_PUT_32 (abfd, src->symbol_location, &dst->symbol_location);
+    H_PUT_32 (abfd, src->symbol_total, &dst->symbol_total);
+    H_PUT_32 (abfd, src->fixup_request_location, &dst->fixup_request_location);
+    H_PUT_32 (abfd, src->fixup_request_total, &dst->fixup_request_total);
+    H_PUT_32 (abfd, src->symbol_strings_location, &dst->symbol_strings_location);
+    H_PUT_32 (abfd, src->symbol_strings_size, &dst->symbol_strings_size);
+    H_PUT_32 (abfd, src->unloadable_sp_location, &dst->unloadable_sp_location);
+    H_PUT_32 (abfd, src->unloadable_sp_size, &dst->unloadable_sp_size);
+    H_PUT_32 (abfd, src->checksum, &dst->checksum);
+}
+
+static void
+som_bfd_get_som_entry (bfd * abfd, const struct som_entry * src,
+    struct som_entry * dst)
+{
+    dst->location = H_GET_32 (abfd, &src->location);
+    dst->length = H_GET_32 (abfd, &src->length);
+}
+
+static void
+som_bfd_put_som_entry (bfd * abfd, const struct som_entry * src,
+    struct som_entry * dst)
+{
+    H_PUT_32 (abfd, src->location, &dst->location);
+    H_PUT_32 (abfd, src->length, &dst->length);
+}
+
+static void
+som_bfd_get_aux_id (bfd * abfd,
+    const struct aux_id * src,
+    struct internal_aux_id * dst)
+{
+    uint32_t flags;
+    
+    flags = H_GET_32 (abfd, &src->flags);
+    dst->mandatory = flags & AUX_MANDATORY;
+    dst->copy = flags & AUX_COPY;
+    dst->append = flags & AUX_APPEND;
+    dst->ignore = flags & AUX_IGNORE;
+    dst->type = (flags & AUX_TYPE_MASK) >> AUX_TYPE_SHIFT;
+    dst->length = H_GET_32 (abfd, &src->length);
+}
+
+static void
+som_bfd_put_aux_id (bfd * abfd,
+    const struct internal_aux_id * src,
+    struct aux_id * dst)
+{
+    uint32_t flags;
+
+    memset (dst, 0, sizeof *dst);
+    flags = 0;
+    flags |= src->mandatory ? AUX_MANDATORY : 0;
+    flags |= src->copy ? AUX_COPY : 0;
+    flags |= src->append ? AUX_APPEND : 0;
+    flags |= src->ignore ? AUX_IGNORE : 0;
+    flags |= (src->type << AUX_TYPE_SHIFT) & AUX_TYPE_MASK;
+    H_PUT_32 (abfd, flags, &dst->flags);
+    H_PUT_32 (abfd, src->length, &dst->length);
+}
+
+static void
+som_bfd_get_som_exec_auxhdr (bfd * abfd,
+    const struct som_exec_auxhdr * src,
+    struct internal_som_exec_auxhdr * dst)
+{
+    som_bfd_get_aux_id (abfd, &src->som_auxhdr, &dst->som_auxhdr);
+    dst->exec_tsize = H_GET_32 (abfd, &src->exec_tsize);
+    dst->exec_tmem = H_GET_32 (abfd, &src->exec_tmem);
+    dst->exec_tfile = H_GET_32 (abfd, &src->exec_tfile);
+    dst->exec_dsize = H_GET_32 (abfd, &src->exec_dsize);
+    dst->exec_dmem = H_GET_32 (abfd, &src->exec_dmem);
+    dst->exec_dfile = H_GET_32 (abfd, &src->exec_dfile);
+    dst->exec_bsize = H_GET_32 (abfd, &src->exec_bsize);
+    dst->exec_entry = H_GET_32 (abfd, &src->exec_entry);
+    dst->exec_flags = H_GET_32 (abfd, &src->exec_flags);
+    dst->exec_bfill = H_GET_32 (abfd, &src->exec_bfill);
+}
+
+static void
+som_bfd_put_som_exec_auxhdr (bfd * abfd,
+    const struct internal_som_exec_auxhdr * src,
+    struct som_exec_auxhdr * dst)
+{
+    som_bfd_put_aux_id (abfd, &src->som_auxhdr, &dst->som_auxhdr);
+    H_PUT_32 (abfd, src->exec_tsize, &dst->exec_tsize);
+    H_PUT_32 (abfd, src->exec_tmem, &dst->exec_tmem);
+    H_PUT_32 (abfd, src->exec_tfile, &dst->exec_tfile);
+    H_PUT_32 (abfd, src->exec_dsize, &dst->exec_dsize);
+    H_PUT_32 (abfd, src->exec_dmem, &dst->exec_dmem);
+    H_PUT_32 (abfd, src->exec_dfile, &dst->exec_dfile);
+    H_PUT_32 (abfd, src->exec_bsize, &dst->exec_bsize);
+    H_PUT_32 (abfd, src->exec_entry, &dst->exec_entry);
+    H_PUT_32 (abfd, src->exec_flags, &dst->exec_flags);
+    H_PUT_32 (abfd, src->exec_bfill, &dst->exec_bfill);
+}
+
+
+static void
+som_bfd_get_lst_header (bfd * abfd,
+    const struct lst_header * src,
+    struct lst_header * dst)
+{
+    dst->system_id = H_GET_16 (abfd, &src->system_id);
+    dst->a_magic = H_GET_16 (abfd, &src->a_magic);
+    dst->version_id = H_GET_32 (abfd, &src->version_id);
+    som_bfd_get_sys_clock (abfd, &src->file_time, &dst->file_time);
+    dst->hash_loc = H_GET_32 (abfd, &src->hash_loc);
+    dst->hash_size = H_GET_32 (abfd, &src->hash_size);
+    dst->module_count = H_GET_32 (abfd, &src->module_count);
+    dst->module_limit = H_GET_32 (abfd, &src->module_limit);
+    dst->dir_loc = H_GET_32 (abfd, &src->dir_loc);
+    dst->export_loc = H_GET_32 (abfd, &src->export_loc);
+    dst->export_count = H_GET_32 (abfd, &src->export_count);
+    dst->import_loc = H_GET_32 (abfd, &src->import_loc);
+    dst->aux_loc = H_GET_32 (abfd, &src->aux_loc);
+    dst->aux_size = H_GET_32 (abfd, &src->aux_size);
+    dst->string_loc = H_GET_32 (abfd, &src->string_loc);
+    dst->string_size = H_GET_32 (abfd, &src->string_size);
+    dst->free_list = H_GET_32 (abfd, &src->free_list);
+    dst->file_end = H_GET_32 (abfd, &src->file_end);
+    dst->checksum = H_GET_32 (abfd, &src->checksum);
+}
+
+static void
+som_bfd_put_lst_header (bfd * abfd,
+    const struct lst_header * src,
+    struct lst_header * dst)
+{
+    H_PUT_16 (abfd, src->system_id, &dst->system_id);
+    H_PUT_16 (abfd, src->a_magic, &dst->a_magic);
+    H_PUT_32 (abfd, src->version_id, &dst->version_id);
+    som_bfd_put_sys_clock (abfd, &src->file_time, &dst->file_time);
+    H_PUT_32 (abfd, src->hash_loc, &dst->hash_loc);
+    H_PUT_32 (abfd, src->hash_size, &dst->hash_size);
+    H_PUT_32 (abfd, src->module_count, &dst->module_count);
+    H_PUT_32 (abfd, src->module_limit, &dst->module_limit);
+    H_PUT_32 (abfd, src->dir_loc, &dst->dir_loc);
+    H_PUT_32 (abfd, src->export_loc, &dst->export_loc);
+    H_PUT_32 (abfd, src->export_count, &dst->export_count);
+    H_PUT_32 (abfd, src->import_loc, &dst->import_loc);
+    H_PUT_32 (abfd, src->aux_loc, &dst->aux_loc);
+    H_PUT_32 (abfd, src->aux_size, &dst->aux_size);
+    H_PUT_32 (abfd, src->string_loc, &dst->string_loc);
+    H_PUT_32 (abfd, src->string_size, &dst->string_size);
+    H_PUT_32 (abfd, src->free_list, &dst->free_list);
+    H_PUT_32 (abfd, src->file_end, &dst->file_end);
+    H_PUT_32 (abfd, src->checksum, &dst->checksum);
+}
+
+static void
+som_bfd_get_lst_symbol_record (bfd * abfd,
+    const struct lst_symbol_record * src,
+    struct internal_lst_symbol_record * dst)
+{
+    u_int32_t flags;
+    
+    flags = H_GET_32 (abfd, &src->flags);
+    dst->hidden = flags & LST_HIDDEN;
+    dst->secondary_def = flags & LST_SECONDARY_DEF;
+    dst->symbol_type = (flags & LST_SYMBOL_TYPE_MASK) >> LST_SYMBOL_TYPE_SHIFT;
+    dst->symbol_scope = (flags & LST_SYMBOL_SCOPE_MASK) >> LST_SYMBOL_SCOPE_SHIFT;
+    dst->check_level = (flags & LST_CHECK_LEVEL_MASK) >> LST_CHECK_LEVEL_SHIFT;
+    dst->must_qualify = flags & LST_MUST_QUALIFY;
+    dst->initially_frozen = flags & LST_INITIALLY_FROZEN;
+    dst->memory_resident = flags & LST_MEMORY_RESIDENT;
+    dst->is_common = flags & LST_IS_COMMON;
+    dst->dup_common = flags & LST_DUP_COMMON;
+    dst->xleast = (flags & LST_XLEAST_MASK) >> LST_XLEAST_SHIFT;
+    dst->arg_reloc = (flags & LST_ARG_RELOC_MASK) >> LST_ARG_RELOC_SHIFT;
+    som_bfd_get_name_pt (abfd, &src->name, &dst->name);
+    som_bfd_get_name_pt (abfd, &src->qualifier_name, &dst->qualifier_name);
+    dst->symbol_info = H_GET_32 (abfd, &src->symbol_info);
+    dst->symbol_value = H_GET_32 (abfd, &src->symbol_value);
+    dst->symbol_descriptor = H_GET_32 (abfd, &src->symbol_descriptor);
+    flags = H_GET_32 (abfd, &src->flags2);
+    dst->reserved = (flags & LST_RESERVED_MASK) >> LST_RESERVED_SHIFT;
+    dst->max_num_args = (flags & LST_MAX_NUM_ARGS_MASK) >> LST_MAX_NUM_ARGS_SHIFT;
+    dst->min_num_args = (flags & LST_MIN_NUM_ARGS_MASK) >> LST_MIN_NUM_ARGS_SHIFT;
+    dst->num_args = (flags & LST_NUM_ARGS_MASK) >> LST_NUM_ARGS_SHIFT;
+    dst->som_index = H_GET_32 (abfd, &src->som_index);
+    dst->symbol_key = H_GET_32 (abfd, &src->symbol_key);
+    dst->next_entry = H_GET_32 (abfd, &src->next_entry);
+}
+
+static void
+som_bfd_put_lst_symbol_record (bfd * abfd,
+    const struct internal_lst_symbol_record * src,
+    struct lst_symbol_record * dst)
+{
+    u_int32_t flags;
+
+    memset (dst, 0, sizeof *dst);
+    flags = 0;
+    flags |= src->hidden ? LST_HIDDEN : 0;
+    flags |= src->secondary_def ? LST_SECONDARY_DEF : 0;
+    flags |= (src->symbol_type << LST_SYMBOL_TYPE_SHIFT) & LST_SYMBOL_TYPE_MASK;
+    flags |= (src->symbol_scope << LST_SYMBOL_SCOPE_SHIFT) & LST_SYMBOL_SCOPE_MASK;
+    flags |= (src->check_level << LST_CHECK_LEVEL_SHIFT) & LST_CHECK_LEVEL_MASK;
+    flags |= src->must_qualify ? LST_MUST_QUALIFY : 0;
+    flags |= src->initially_frozen ? LST_INITIALLY_FROZEN : 0;
+    flags |= src->memory_resident ? LST_MEMORY_RESIDENT : 0;
+    flags |= src->is_common ? LST_IS_COMMON : 0;
+    flags |= src->dup_common ? LST_DUP_COMMON : 0;
+    flags |= (src->xleast << LST_XLEAST_SHIFT) & LST_XLEAST_MASK;
+    flags |= (src->arg_reloc << LST_ARG_RELOC_SHIFT) & LST_ARG_RELOC_MASK;
+    H_PUT_32 (abfd, flags, &dst->flags);
+    som_bfd_put_name_pt (abfd, &src->name, &dst->name);
+    som_bfd_put_name_pt (abfd, &src->qualifier_name, &dst->qualifier_name);
+    H_PUT_32 (abfd, src->symbol_info, &dst->symbol_info);
+    H_PUT_32 (abfd, src->symbol_value, &dst->symbol_value);
+    H_PUT_32 (abfd, src->symbol_descriptor, &dst->symbol_descriptor);
+    flags = 0;
+    flags |= (src->reserved << LST_RESERVED_SHIFT) & LST_RESERVED_MASK;
+    flags |= (src->max_num_args << LST_MAX_NUM_ARGS_SHIFT) & LST_MAX_NUM_ARGS_MASK;
+    flags |= (src->min_num_args << LST_MIN_NUM_ARGS_SHIFT) & LST_MIN_NUM_ARGS_MASK;
+    flags |= (src->num_args << LST_NUM_ARGS_SHIFT) & LST_NUM_ARGS_MASK;
+    H_PUT_32 (abfd, flags, &dst->flags2);
+    H_PUT_32 (abfd, src->som_index, &dst->som_index);
+    H_PUT_32 (abfd, src->symbol_key, &dst->symbol_key);
+    H_PUT_32 (abfd, src->next_entry, &dst->next_entry);
+}
+
+static void
+som_bfd_get_symbol_dictionary_record (bfd * abfd,
+    const struct symbol_dictionary_record * src,
+    struct internal_symbol_dictionary_record * dst)
+{
+    uint32_t flags;
+
+    flags = H_GET_32 (abfd, &src->flags);
+    dst->hidden = flags & SDR_HIDDEN;
+    dst->secondary_def = flags & SDR_SECONDARY_DEF;
+    dst->symbol_type = (flags & SDR_SYMBOL_TYPE_MASK) >> SDR_SYMBOL_TYPE_SHIFT;
+    dst->symbol_scope = (flags & SDR_SYMBOL_SCOPE_MASK) >> SDR_SYMBOL_SCOPE_SHIFT;
+    dst->check_level = (flags & SDR_CHECK_LEVEL_MASK) >> SDR_CHECK_LEVEL_SHIFT;
+    dst->must_qualify = flags & SDR_MUST_QUALIFY;
+    dst->initially_frozen = flags & SDR_INITIALLY_FROZEN;
+    dst->memory_resident = flags & SDR_MEMORY_RESIDENT;
+    dst->is_common = flags & SDR_IS_COMMON;
+    dst->dup_common = flags & SDR_DUP_COMMON;
+    dst->xleast = (flags & SDR_XLEAST_MASK) >> SDR_XLEAST_SHIFT;
+    dst->arg_reloc = (flags & SDR_ARG_RELOC_MASK) >> SDR_ARG_RELOC_SHIFT;
+    som_bfd_get_name_pt (abfd, &src->name, &dst->name);
+    som_bfd_get_name_pt (abfd, &src->qualifier_name, &dst->qualifier_name);
+    flags = H_GET_32 (abfd, &src->flags2);
+    dst->has_long_return = flags & SDR_HAS_LONG_RETURN;
+    dst->no_relocation = flags & SDR_NO_RELOCATION;
+    dst->is_comdat = flags & SDR_IS_COMDAT;
+    dst->is_protected = flags & SDR_IS_PROTECTED;
+    dst->reserved = (flags & SDR_RESERVED_MASK) >> SDR_RESERVED_SHIFT;
+    dst->symbol_info = (flags & SDR_SYMBOL_INFO_MASK) >> SDR_SYMBOL_INFO_SHIFT;
+    dst->symbol_value = H_GET_32 (abfd, &src->symbol_value);
+}
+
+static void
+som_bfd_put_symbol_dictionary_record (bfd * abfd,
+    const struct internal_symbol_dictionary_record * src,
+    struct symbol_dictionary_record * dst)
+{
+    uint32_t flags;
+
+    memset (dst, 0, sizeof *dst);
+    flags = 0;
+    flags |= src->hidden ? SDR_HIDDEN : 0;
+    flags |= src->secondary_def ? SDR_SECONDARY_DEF : 0;
+    flags |= (src->symbol_type << SDR_SYMBOL_TYPE_SHIFT) & SDR_SYMBOL_TYPE_MASK;
+    flags |= (src->symbol_scope << SDR_SYMBOL_SCOPE_SHIFT) & SDR_SYMBOL_SCOPE_MASK;
+    flags |= (src->check_level << SDR_CHECK_LEVEL_SHIFT) & SDR_CHECK_LEVEL_MASK;
+    flags |= src->must_qualify ? SDR_MUST_QUALIFY : 0;
+    flags |= src->initially_frozen ? SDR_INITIALLY_FROZEN : 0;
+    flags |= src->memory_resident ? SDR_MEMORY_RESIDENT : 0;
+    flags |= src->is_common ? SDR_IS_COMMON : 0;
+    flags |= src->dup_common ? SDR_DUP_COMMON : 0;
+    flags |= (src->xleast << SDR_XLEAST_SHIFT) & SDR_XLEAST_MASK;
+    flags |= (src->arg_reloc << SDR_ARG_RELOC_SHIFT) & SDR_ARG_RELOC_MASK;
+    som_bfd_put_name_pt (abfd, &src->name, &dst->name);
+    som_bfd_put_name_pt (abfd, &src->qualifier_name, &dst->qualifier_name);
+    H_PUT_32 (abfd, flags, &dst->flags);
+    flags = 0;
+    flags |= src->has_long_return ? SDR_HAS_LONG_RETURN : 0;
+    flags |= src->no_relocation ? SDR_NO_RELOCATION : 0;
+    flags |= src->is_comdat ? SDR_IS_COMDAT : 0;
+    flags |= src->is_protected ? SDR_IS_PROTECTED : 0;
+    flags |= (src->reserved << SDR_RESERVED_SHIFT) & SDR_RESERVED_MASK;
+    flags |= (src->symbol_info << SDR_SYMBOL_INFO_SHIFT) & SDR_SYMBOL_INFO_MASK;
+    H_PUT_32 (abfd, flags, &dst->flags2);
+    H_PUT_32 (abfd, src->symbol_value, &dst->symbol_value);
+}
+
+#if 0
+static void
+som_bfd_get_compilation_unit (bfd * abfd,
+    const struct compilation_unit * src,
+    struct internal_compilation_unit * dst)
+{
+    uint32_t flags;
+
+    som_bfd_get_name_pt (abfd, &src->name, &dst->name);
+    som_bfd_get_name_pt (abfd, &src->language_name, &dst->language_name);
+    som_bfd_get_name_pt (abfd, &src->product_id, &dst->product_id);
+    som_bfd_get_name_pt (abfd, &src->version_id, &dst->version_id);
+    flags = H_GET_32 (abfd, &src->flags);
+    dst->reserved = (flags & CU_RESERVED_MASK) >> CU_RESERVED_SHIFT;
+    dst->chunk_flag = flags & CU_CHUNK_FLAG;
+    som_bfd_get_sys_clock (abfd, &src->compile_time, &dst->compile_time);
+    som_bfd_get_sys_clock (abfd, &src->source_time, &dst->source_time);
+}
+#endif
+
+static void
+som_bfd_put_compilation_unit (bfd * abfd,
+    const struct internal_compilation_unit * src,
+    struct compilation_unit * dst)
+{
+    uint32_t flags;
+
+    memset (dst, 0, sizeof *dst);
+    som_bfd_put_name_pt (abfd, &src->name, &dst->name);
+    som_bfd_put_name_pt (abfd, &src->language_name, &dst->language_name);
+    som_bfd_put_name_pt (abfd, &src->product_id, &dst->product_id);
+    som_bfd_put_name_pt (abfd, &src->version_id, &dst->version_id);
+    flags = 0;
+    flags |= (src->reserved << CU_RESERVED_SHIFT) & CU_RESERVED_MASK;
+    flags |= src->chunk_flag ? CU_CHUNK_FLAG : 0;
+    H_PUT_32 (abfd, flags, &dst->flags);
+    som_bfd_put_sys_clock (abfd, &src->compile_time, &dst->compile_time);
+    som_bfd_put_sys_clock (abfd, &src->source_time, &dst->source_time);
+}
+
+
+#endif /* _bfd_som_somswap_h */
Index: include/som/syms.h
===================================================================
--- include/som/syms.h	(revision 0)
+++ include/som/syms.h	(revision 12)
@@ -0,0 +1,104 @@
+/* Declaration of data structures for symbol dicts in PA-SOM object files.
+   (c) 2007, Quest Software, Inc. All rights reserved.
+   Written by David Leonard based on information published by Hewlett-Packard.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _bfd_som_syms_h
+#define _bfd_som_syms_h
+
+#include "aouttypes.h"
+
+struct symbol_dictionary_record {
+    uint32_t	    flags;
+#define SDR_HIDDEN                      0x80000000
+#define SDR_SECONDARY_DEF               0x40000000
+#define SDR_SYMBOL_TYPE_MASK            0x3f000000
+#define SDR_SYMBOL_TYPE_SHIFT           24
+#define SDR_SYMBOL_SCOPE_MASK           0x00f00000
+#define SDR_SYMBOL_SCOPE_SHIFT          20
+#define SDR_CHECK_LEVEL_MASK            0x000e0000
+#define SDR_CHECK_LEVEL_SHIFT           17
+#define SDR_MUST_QUALIFY                0x00010000
+#define SDR_INITIALLY_FROZEN            0x00008000
+#define SDR_MEMORY_RESIDENT             0x00004000
+#define SDR_IS_COMMON                   0x00002000
+#define SDR_DUP_COMMON                  0x00001000
+#define SDR_XLEAST_MASK                 0x00000c00
+#define SDR_XLEAST_SHIFT                10
+#define SDR_ARG_RELOC_MASK              0x000003ff
+#define SDR_ARG_RELOC_SHIFT             0
+    union name_pt   name;
+    union name_pt   qualifier_name;
+    uint32_t        flags2;
+#define SDR_HAS_LONG_RETURN             0x80000000
+#define SDR_NO_RELOCATION               0x40000000
+#define SDR_IS_COMDAT                   0x20000000
+#define SDR_IS_PROTECTED                0x10000000
+#define SDR_RESERVED_MASK               0x0f000000
+#define SDR_RESERVED_SHIFT              24
+#define SDR_SYMBOL_INFO_MASK            0x00ffffff
+#define SDR_SYMBOL_INFO_SHIFT           0
+    uint32_t        symbol_value;
+};
+
+struct internal_symbol_dictionary_record {
+    bfd_boolean     hidden;
+    bfd_boolean     secondary_def;
+    unsigned int    symbol_type : 6;
+#define ST_NULL             0
+#define ST_ABSOLUTE         1
+#define ST_DATA             2
+#define ST_CODE             3
+#define ST_PRI_PROG         4
+#define ST_SEC_PROG         5
+#define ST_ENTRY            6
+#define ST_STORAGE          7
+#define ST_STUB             8
+#define ST_SYM_EXT          10
+#define ST_ARG_EXT          11
+#define ST_MILLICODE        12
+#define ST_PLABEL           13
+    unsigned int    symbol_scope : 4;
+#define SS_UNSAT            0
+#define SS_EXTERNAL         1
+#define SS_LOCAL            2
+#define SS_UNIVERSAL        3
+    unsigned int    check_level : 3;
+    bfd_boolean     must_qualify;
+    bfd_boolean     initially_frozen;
+    bfd_boolean     memory_resident;
+    bfd_boolean     is_common;
+    bfd_boolean     dup_common;
+    unsigned int    xleast : 2;
+    unsigned int    arg_reloc : 10;
+    union internal_name_pt name;
+#define n_nptr              name.n_name
+#define n_offset            name.n_strx
+    union internal_name_pt qualifier_name;
+#define q_nptr              qualifier_name.n_name
+#define q_offset            qualifier_name.n_strx
+    bfd_boolean     has_long_return;
+    bfd_boolean     no_relocation;
+    bfd_boolean     is_comdat;
+    bfd_boolean     is_protected;
+    unsigned int    reserved : 4;
+    uint32_t        symbol_info : 24;
+    uint32_t        symbol_value;
+};
+
+#endif /* _bfd_som_syms_h */
Index: include/som/aouttypes.h
===================================================================
--- include/som/aouttypes.h	(revision 0)
+++ include/som/aouttypes.h	(revision 12)
@@ -0,0 +1,43 @@
+/* Declaration of data structures for the PA-SOM object format.
+   (c) 2007, Quest Software, Inc. All rights reserved.
+   Written by David Leonard based on information published by Hewlett-Packard.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _bfd_som_aouttypes_h
+#define _bfd_som_aouttypes_h
+
+#include "bfd_stdint.h"
+
+struct sys_clock {
+    uint32_t        secs;
+    uint32_t        nanosecs;
+};
+
+union name_pt {
+    uint32_t        n_name;
+    uint32_t        n_strx;
+};
+
+union internal_name_pt {
+    char *          n_name;
+    uint32_t        n_strx;
+};
+#define NAME_PT             name.n_name
+#define STR_INDEX           name.n_strx
+
+#endif /* _bfd_som_aouttypes_h */
Index: include/som/filehdr.h
===================================================================
--- include/som/filehdr.h	(revision 0)
+++ include/som/filehdr.h	(revision 12)
@@ -0,0 +1,81 @@
+/* Declaration of data structures for the PA-SOM object format.
+   (c) 2007, Quest Software, Inc. All rights reserved.
+   Written by David Leonard based on information published by Hewlett-Packard.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _bfd_som_filehdr_h
+#define _bfd_som_filehdr_h
+
+#include "aouttypes.h"
+
+struct header {
+    uint16_t        system_id;
+#define CPU_PA_RISC1_0      0x20B
+#define CPU_PA_RISC1_1      0x210
+#define CPU_PA_RISC2_0      0x214
+    uint16_t        a_magic;
+#define EXECLIBMAGIC        0x104
+#define RELOC_MAGIC         0x106
+#define EXEC_MAGIC          0x107
+#define SHARE_MAGIC         0x108
+#define DEMAND_MAGIC        0x10b
+#define DL_MAGIC            0x10d
+#define SHL_MAGIC           0x10e
+    uint32_t        version_id;
+#define VERSION_ID          85082112
+#define NEW_VERSION_ID      87102412
+    struct sys_clock file_time;
+    uint32_t        entry_space;
+    uint32_t        entry_subspace;
+    uint32_t        entry_offset;
+    uint32_t        aux_header_location;
+    uint32_t        aux_header_size;
+    uint32_t        som_length;
+    uint32_t        presumed_dp;
+    uint32_t        space_location;
+    uint32_t        space_total;
+    uint32_t        subspace_location;
+    uint32_t        subspace_total;
+    uint32_t        loader_fixup_location;
+    uint32_t        loader_fixup_total;
+    uint32_t        space_strings_location;
+    uint32_t        space_strings_size;
+    uint32_t        init_array_location;
+    uint32_t        init_array_total;
+    uint32_t        compiler_location;
+    uint32_t        compiler_total;
+    uint32_t        symbol_location;
+    uint32_t        symbol_total;
+    uint32_t        fixup_request_location;
+    uint32_t        fixup_request_total;
+    uint32_t        symbol_strings_location;
+    uint32_t        symbol_strings_size;
+    uint32_t        unloadable_sp_location;
+    uint32_t        unloadable_sp_size;
+    uint32_t        checksum;
+};
+
+#define _PA_RISC1_0_ID      CPU_PA_RISC1_0
+#define _PA_RISC1_1_ID      CPU_PA_RISC1_1
+#define _PA_RISC2_0_ID      CPU_PA_RISC2_0
+#define _PA_RISC_MAXID      0x2FF
+#define _PA_RISC_ID(__m_num)            \
+    (((__m_num) == _PA_RISC1_0_ID) ||   \
+         ((__m_num) >= _PA_RISC1_1_ID && (__m_num) <= _PA_RISC_MAXID))
+
+#endif /* _bfd_som_filehdr_h */
Index: include/som/compunit.h
===================================================================
--- include/som/compunit.h	(revision 0)
+++ include/som/compunit.h	(revision 12)
@@ -0,0 +1,54 @@
+/* Declaration of data structures for the PA-SOM object format.
+   (c) 2007, Quest Software, Inc. All rights reserved.
+   Written by David Leonard based on information published by Hewlett-Packard.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _bfd_som_compunit_h
+#define _bfd_som_compunit_h
+
+#include "aouttypes.h"
+
+struct compilation_unit {
+    union name_pt    name;
+    union name_pt    language_name;
+    union name_pt    product_id;
+    union name_pt    version_id;
+    uint32_t flags;
+#define CU_RESERVED_MASK                0xfffffffe
+#define CU_RESERVED_SHIFT               1
+#define CU_CHUNK_FLAG                   0x00000001
+    struct sys_clock compile_time;
+    struct sys_clock source_time;
+};
+#define COMPUNIT            struct compilation_unit
+#define COMPUNITSZ          sizeof(COMPUNIT)
+
+struct internal_compilation_unit {
+    union internal_name_pt    name;
+    union internal_name_pt    language_name;
+    union internal_name_pt    product_id;
+    union internal_name_pt    version_id;
+    uint32_t         reserved   : 31;
+    uint32_t         chunk_flag :  1;
+    struct sys_clock compile_time;
+    struct sys_clock source_time;
+};
+#define internal_COMPUNIT            struct internal_compilation_unit
+#define internal_COMPUNITSZ          sizeof(internal_COMPUNIT)
+
+#endif /* _bfd_som_compunit_h */
Index: include/som/scnhdr.h
===================================================================
--- include/som/scnhdr.h	(revision 0)
+++ include/som/scnhdr.h	(revision 12)
@@ -0,0 +1,91 @@
+/* Declaration of data structures for the PA-SOM object format.
+   (c) 2007, Quest Software, Inc. All rights reserved.
+   Written by David Leonard based on information published by Hewlett-Packard.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _bfd_som_scnhdr_h
+#define _bfd_som_scnhdr_h
+
+#include "aouttypes.h"
+
+struct subspace_dictionary_record {
+	int32_t         space_index;
+        uint32_t        flags;
+#define SCN_ACCESS_CONTROL_BITS_MASK    0xfe000000
+#define SCN_ACCESS_CONTROL_BITS_SHIFT   25
+#define SCN_MEMORY_RESIDENT             0x01000000
+#define SCN_DUP_COMMON                  0x00800000
+#define SCN_IS_COMMON                   0x00400000
+#define SCN_IS_LOADABLE                 0x00200000
+#define SCN_QUADRANT_MASK               0x00180000
+#define SCN_QUADRANT_SHIFT              19
+#define SCN_INITIALLY_FROZEN            0x00040000
+#define SCN_IS_FIRST                    0x00020000
+#define SCN_CODE_ONLY                   0x00010000
+#define SCN_SORT_KEY_MASK               0x0000ff00
+#define SCN_SORT_KEY_SHIFT              8
+#define SCN_REPLICATE_INIT              0x00000080
+#define SCN_CONTINUATION                0x00000040
+#define SCN_IS_TSPECIFIC                0x00000020
+#define SCN_IS_COMDAT                   0x00000010
+#define SCN_RESERVED_MASK               0x0000000f
+#define SCN_RESERVED_SHIFT              0
+        int32_t         file_loc_init_value;
+        uint32_t        initialization_length;
+        uint32_t        subspace_start;
+        uint32_t        subspace_length;
+        uint32_t        flags2;
+#define SCN_RESERVED2_MASK              0xf8000000
+#define SCN_RESERVED2_SHIFT             27
+#define SCN_ALIGNMENT_MASK              0x07ffffff
+#define SCN_ALIGNMENT_SHIFT             0
+        union name_pt   name;
+        int32_t         fixup_request_index;
+        uint32_t        fixup_request_quantity;
+};
+
+struct internal_subspace_dictionary_record {
+        int32_t         space_index;
+        uint8_t         access_control_bits: 7;
+        bfd_boolean     memory_resident;
+        bfd_boolean     dup_common;
+        bfd_boolean     is_common;
+        bfd_boolean     is_loadable;
+        uint8_t         quadrant: 2;
+        bfd_boolean     initially_frozen;
+        bfd_boolean     is_first;
+        bfd_boolean     code_only;
+        uint8_t         sort_key;
+        bfd_boolean     replicate_init;
+        bfd_boolean     continuation;
+        bfd_boolean     is_tspecific;
+        bfd_boolean     is_comdat;
+        int32_t         file_loc_init_value;
+        uint32_t        initialization_length;
+        uint32_t        subspace_start;
+        uint32_t        subspace_length;
+        uint32_t        alignment: 27;
+        union internal_name_pt name;
+        int32_t         fixup_request_index;
+        uint32_t        fixup_request_quantity;
+};
+
+#define SCNHDR  struct subspace_dictionary_record
+#define SCNHSZ  sizeof(SCNHDR)
+
+#endif /* _bfd_som_scnhdr_h */
Index: include/som/lst.h
===================================================================
--- include/som/lst.h	(revision 0)
+++ include/som/lst.h	(revision 12)
@@ -0,0 +1,123 @@
+/* Declaration of data structures for the PA-SOM object format.
+   (c) 2007, Quest Software, Inc. All rights reserved.
+   Written by David Leonard based on information published by Hewlett-Packard.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _bfd_som_lst_h
+#define _bfd_som_lst_h
+
+#include "aouttypes.h"
+
+#define LIBMAGIC            0x0619
+
+struct lst_header {
+    uint16_t            system_id;
+    uint16_t            a_magic;
+    uint32_t            version_id;
+    struct sys_clock    file_time;
+    uint32_t            hash_loc;
+    uint32_t            hash_size;
+    uint32_t            module_count;
+    uint32_t            module_limit;
+    uint32_t            dir_loc;
+    uint32_t            export_loc;
+    uint32_t            export_count;
+    uint32_t            import_loc;
+    uint32_t            aux_loc;
+    uint32_t            aux_size;
+    uint32_t            string_loc;
+    uint32_t            string_size;
+    uint32_t            free_list;
+    uint32_t            file_end;
+    uint32_t            checksum;
+};
+
+struct som_entry {
+    uint32_t            location;
+    uint32_t            length;
+};
+
+struct lst_symbol_record {
+    uint32_t            flags;
+#define LST_HIDDEN                      0x80000000
+#define LST_SECONDARY_DEF               0x40000000
+#define LST_SYMBOL_TYPE_MASK            0x3f000000
+#define LST_SYMBOL_TYPE_SHIFT           24
+#define LST_SYMBOL_SCOPE_MASK           0x00f00000
+#define LST_SYMBOL_SCOPE_SHIFT          20
+#define LST_CHECK_LEVEL_MASK            0x000e0000
+#define LST_CHECK_LEVEL_SHIFT           17
+#define LST_MUST_QUALIFY                0x00010000
+#define LST_INITIALLY_FROZEN            0x00008000
+#define LST_MEMORY_RESIDENT             0x00004000
+#define LST_IS_COMMON                   0x00002000
+#define LST_DUP_COMMON                  0x00001000
+#define LST_XLEAST_MASK                 0x00000c00
+#define LST_XLEAST_SHIFT                10
+#define LST_ARG_RELOC_MASK              0x000003ff
+#define LST_ARG_RELOC_SHIFT             0
+    union name_pt       name;
+    union name_pt       qualifier_name;
+    uint32_t            symbol_info;
+    uint32_t            symbol_value;
+    uint32_t            symbol_descriptor;
+    uint32_t            flags2;
+#define LST_RESERVED_MASK               0xff000000
+#define LST_RESERVED_SHIFT              24
+#define LST_MAX_NUM_ARGS_MASK           0x00ff0000
+#define LST_MAX_NUM_ARGS_SHIFT          16
+#define LST_MIN_NUM_ARGS_MASK           0x0000ff00
+#define LST_MIN_NUM_ARGS_SHIFT          8
+#define LST_NUM_ARGS_MASK               0x000000ff
+#define LST_NUM_ARGS_SHIFT              0
+    uint32_t            som_index;
+    uint32_t            symbol_key;
+    uint32_t            next_entry;
+};
+
+struct internal_lst_symbol_record {
+    bfd_boolean         hidden;
+    bfd_boolean         secondary_def;
+    uint8_t             symbol_type      : 6;
+    uint8_t             symbol_scope     : 4;
+    uint8_t             check_level      : 3;
+    bfd_boolean         must_qualify;
+    bfd_boolean         initially_frozen;
+    bfd_boolean         memory_resident;
+    bfd_boolean         is_common;
+    bfd_boolean         dup_common;
+    uint8_t             xleast           : 2;
+    uint16_t            arg_reloc        :10;
+    union internal_name_pt name;
+    union internal_name_pt qualifier_name;
+    uint32_t            symbol_info;
+    uint32_t            symbol_value;
+    uint32_t            symbol_descriptor;
+    uint8_t             reserved;
+    uint8_t             max_num_args;
+    uint8_t             min_num_args;
+    uint8_t             num_args;
+    uint32_t            som_index;
+    uint32_t            symbol_key;
+    uint32_t            next_entry;
+};
+
+#define LSTSYMESZ           sizeof(struct lst_symbol_record)
+#define SLSTHDR             sizeof(struct lst_header)
+
+#endif /* _bfd_som_lst_h */
Index: include/som/reloc.h
===================================================================
--- include/som/reloc.h	(revision 0)
+++ include/som/reloc.h	(revision 12)
@@ -0,0 +1,75 @@
+/* Declaration of relocation operators for the PA-SOM object format.
+   (c) 2007, Quest Software, Inc. All rights reserved.
+   Written by David Leonard based on information published by Hewlett-Packard.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _bfd_som_reloc_h
+#define _bfd_som_reloc_h
+
+#define R_NO_RELOCATION     0x00
+#define R_ZEROES            0x20
+#define R_UNINIT            0x22
+#define R_RELOCATION        0x24
+#define R_DATA_ONE_SYMBOL   0x25
+#define R_DATA_PLABEL       0x27
+#define R_SPACE_REF         0x29
+#define R_REPEATED_INIT     0x2a
+#define R_PCREL_CALL        0x30
+#define R_SHORT_PCREL_MODE  0x3e
+#define R_LONG_PCREL_MODE   0x3f
+#define R_ABS_CALL          0x40
+#define R_DP_RELATIVE       0x50
+#define R_DLT_REL           0x78
+#define R_CODE_ONE_SYMBOL   0x80
+#define R_MILLI_REL         0xae
+#define R_CODE_PLABEL       0xb0
+#define R_BREAKPOINT        0xb2
+#define R_ENTRY             0xb3
+#define R_ALT_ENTRY         0xb5
+#define R_EXIT              0xb6
+#define R_BEGIN_TRY         0xb7
+#define R_END_TRY           0xb8
+#define R_BEGIN_BRTAB       0xbb
+#define R_END_BRTAB         0xbc
+#define R_STATEMENT         0xbd
+#define R_DATA_EXPR         0xc0
+#define R_CODE_EXPR         0xc1
+#define R_FSEL              0xc2
+#define R_LSEL              0xc3
+#define R_RSEL              0xc4
+#define R_N_MODE            0xc5
+#define R_S_MODE            0xc6
+#define R_D_MODE            0xc7
+#define R_R_MODE            0xc8
+#define R_DATA_OVERRIDE     0xc9
+#define R_TRANSLATED        0xce
+#define R_AUX_UNWIND        0xcf
+#define R_COMP1             0xd0
+#define R_COMP2             0xd1
+#define R_COMP3             0xd2
+#define R_PREV_FIXUP        0xd3
+#define R_SEC_STMT          0xd7
+#define R_N0SEL             0xd8
+#define R_N1SEL             0xd9
+#define R_LINETAB           0xda
+#define R_LINETAB_ESC       0xdb
+#define R_LTP_OVERRIDE      0xdc
+#define R_COMMENT           0xdd
+#define R_RESERVED          0xe0
+
+#endif /* _bfd_som_reloc_h */
Index: include/som/a.out.h
===================================================================
--- include/som/a.out.h	(revision 0)
+++ include/som/a.out.h	(revision 12)
@@ -0,0 +1,32 @@
+/* Declaration of data structures for the PA-SOM object format.
+   (c) 2007, Quest Software, Inc. All rights reserved.
+   Written by David Leonard based on information published by Hewlett-Packard.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _bfd_som_a_out_h
+#define _bfd_som_a_out_h
+
+#include "filehdr.h"
+#include "aouthdr.h"
+#include "scnhdr.h"
+#include "spacehdr.h"
+#include "compunit.h"
+#include "reloc.h"
+#include "syms.h"
+
+#endif /* _bfd_som_a_out_h */
Index: include/som/aouthdr.h
===================================================================
--- include/som/aouthdr.h	(revision 0)
+++ include/som/aouthdr.h	(revision 12)
@@ -0,0 +1,107 @@
+/* Declaration of data structures for the PA-SOM object format.
+   (c) 2007, Quest Software, Inc. All rights reserved.
+   Written by David Leonard based on information published by Hewlett-Packard.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+#ifndef _bfd_som_aouthdr_h
+#define _bfd_som_aouthdr_h
+
+#include "aouttypes.h"
+
+struct aux_id {
+    uint32_t	    flags;
+#define AUX_MANDATORY                   0x80000000
+#define AUX_COPY                        0x40000000
+#define AUX_APPEND                      0x20000000
+#define AUX_IGNORE                      0x10000000
+#define AUX_RESERVED_MASK               0x0fff0000
+#define AUX_RESERVED_SHIFT              16
+#define AUX_TYPE_MASK                   0x0000ffff
+#define AUX_TYPE_SHIFT                  0
+    uint32_t        length;
+};
+
+struct som_exec_auxhdr {
+    struct aux_id   som_auxhdr;
+    int32_t         exec_tsize;
+    int32_t         exec_tmem;
+    int32_t         exec_tfile;
+    int32_t         exec_dsize;
+    int32_t         exec_dmem;
+    int32_t         exec_dfile;
+    int32_t         exec_bsize;
+    int32_t         exec_entry;
+    int32_t         exec_flags;
+    int32_t         exec_bfill;
+};
+
+struct copyright_aux_hdr {
+    struct aux_id   header_id;
+    uint32_t        string_length;
+    char            copyright[1];  
+    /* Pad to next 32-bit boundary */
+};
+
+struct user_string_aux_hdr {
+    struct aux_id   header_id;
+    uint32_t        string_length;
+    char            user_string[1]; 
+    /* Pad to next 32-bit boundary */
+};
+
+#define AUX_HDR_SIZE sizeof (struct som_exec_auxhdr)
+
+struct internal_aux_id {
+    bfd_boolean     mandatory;
+    bfd_boolean     copy;
+    bfd_boolean     append;
+    bfd_boolean     ignore;
+    uint16_t        type;
+#define   HPUX_AUX_ID         4
+#define   VERSION_AUX_ID      6
+#define   COPYRIGHT_AUX_ID    9
+    uint32_t        length;
+};
+
+struct internal_som_exec_auxhdr {
+    struct internal_aux_id   som_auxhdr;
+    int32_t         exec_tsize;
+    int32_t         exec_tmem;
+    int32_t         exec_tfile;
+    int32_t         exec_dsize;
+    int32_t         exec_dmem;
+    int32_t         exec_dfile;
+    int32_t         exec_bsize;
+    int32_t         exec_entry;
+    int32_t         exec_flags;
+    int32_t         exec_bfill;
+};
+
+struct internal_copyright_aux_hdr {
+    struct internal_aux_id   header_id;
+    uint32_t        string_length;
+    char *          copyright;
+};
+
+struct internal_user_string_aux_hdr {
+    struct internal_aux_id   header_id;
+    uint32_t        string_length;
+    char *          user_string;
+};
+
+
+#endif /* _bfd_som_aouthdr_h */
Index: bfd/som.c
===================================================================
--- bfd/som.c	(revision 6)
+++ bfd/som.c	(working copy)
@@ -5,6 +5,7 @@
 
    Contributed by the Center for Software Science at the
    University of Utah.
+   Made portable by David Leonard of Quest Software, Inc.
 
    This file is part of BFD, the Binary File Descriptor library.
 
@@ -27,16 +28,14 @@
 #include "sysdep.h"
 #include "bfd.h"
 
-#if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF) || defined(HOST_HPPAMPEIX)
-
 #include "libbfd.h"
-#include "som.h"
 #include "safe-ctype.h"
+#include "som.h"
+#include "som/somswap.h"
 
-#include <sys/param.h>
-#include <signal.h>
-#include <machine/reg.h>
-#include <sys/file.h>
+#ifndef MAX
+#define MAX(a,b)    ((a) > (b) ? (a) : (b))
+#endif
 
 static bfd_reloc_status_type hppa_som_reloc
   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
@@ -44,61 +43,98 @@
 static bfd_boolean som_is_space (asection *);
 static bfd_boolean som_is_subspace (asection *);
 static int compare_subspaces (const void *, const void *);
-static unsigned long som_compute_checksum (bfd *);
+static uint32_t xor_checksum (void *data, size_t size);
 static bfd_boolean som_build_and_write_symbol_table (bfd *);
-static unsigned int som_slurp_symbol_table (bfd *);
+static bfd_boolean som_slurp_symbol_table (bfd *);
 
-/* Magic not defined in standard HP-UX header files until 8.0.  */
+static int som_bfd_write_aux_id_and_string(bfd * abfd, 
+    struct internal_aux_id * aux_id, uint32_t string_length, char *string);
 
-#ifndef CPU_PA_RISC1_0
-#define CPU_PA_RISC1_0 0x20B
-#endif /* CPU_PA_RISC1_0 */
+#define SOM_DECLARE_READ(tag, internal_tag)				\
+static bfd_boolean som_bfd_read_##tag (bfd *, struct internal_tag *);	\
+static bfd_boolean							\
+som_bfd_read_##tag (bfd * abfd, struct internal_tag * dst)		\
+{									\
+  struct tag buf;							\
+  if (bfd_bread ((void *) &buf, sizeof buf, abfd) != sizeof buf)	\
+    return FALSE;							\
+  som_bfd_get_##tag (abfd, &buf, dst);					\
+  return TRUE;								\
+}
 
-#ifndef CPU_PA_RISC1_1
-#define CPU_PA_RISC1_1 0x210
-#endif /* CPU_PA_RISC1_1 */
+#define SOM_DECLARE_WRITE(tag, internal_tag)				\
+static bfd_boolean som_bfd_write_##tag (bfd *, const struct internal_tag *); \
+static bfd_boolean							\
+som_bfd_write_##tag (bfd * abfd, const struct internal_tag * src)	\
+{									\
+  struct tag buf;							\
+  som_bfd_put_##tag (abfd, src, &buf);					\
+  return bfd_bwrite ((void *) &buf, sizeof buf, abfd) == sizeof buf;	\
+}									\
 
-#ifndef CPU_PA_RISC2_0
-#define CPU_PA_RISC2_0 0x214
-#endif /* CPU_PA_RISC2_0 */
+SOM_DECLARE_READ(lst_header, lst_header)
+SOM_DECLARE_READ(header, header)
+SOM_DECLARE_READ(som_entry, som_entry)
+SOM_DECLARE_READ(som_exec_auxhdr, internal_som_exec_auxhdr)
+SOM_DECLARE_READ(space_dictionary_record, internal_space_dictionary_record)
+SOM_DECLARE_READ(subspace_dictionary_record, internal_subspace_dictionary_record)
+SOM_DECLARE_READ(lst_symbol_record, internal_lst_symbol_record)
+SOM_DECLARE_WRITE(aux_id, internal_aux_id)
+SOM_DECLARE_WRITE(symbol_dictionary_record, internal_symbol_dictionary_record)
+SOM_DECLARE_WRITE(space_dictionary_record, internal_space_dictionary_record)
+SOM_DECLARE_WRITE(subspace_dictionary_record, internal_subspace_dictionary_record)
+SOM_DECLARE_WRITE(compilation_unit, internal_compilation_unit)
+SOM_DECLARE_WRITE(som_exec_auxhdr, internal_som_exec_auxhdr)
+SOM_DECLARE_WRITE(som_entry, som_entry)
+SOM_DECLARE_WRITE(lst_symbol_record, internal_lst_symbol_record)
 
-#ifndef _PA_RISC1_0_ID
-#define _PA_RISC1_0_ID CPU_PA_RISC1_0
-#endif /* _PA_RISC1_0_ID */
+/* Writes an aux_id + string. Returns bytes written, or 0 on error */
+static int 
+som_bfd_write_aux_id_and_string(bfd * abfd, 
+      struct internal_aux_id * aux_id,
+      uint32_t string_length,
+      char *string)
+{
+  uint32_t len;
+  static char zeroes[4] = {0,0,0,0};
+  unsigned int pad;
 
-#ifndef _PA_RISC1_1_ID
-#define _PA_RISC1_1_ID CPU_PA_RISC1_1
-#endif /* _PA_RISC1_1_ID */
+  BFD_ASSERT (aux_id->length % 4 == 0);
+  BFD_ASSERT (aux_id->length >= string_length + sizeof len);
+  BFD_ASSERT (aux_id->length < string_length + sizeof len + 4); /* minimal */
 
-#ifndef _PA_RISC2_0_ID
-#define _PA_RISC2_0_ID CPU_PA_RISC2_0
-#endif /* _PA_RISC2_0_ID */
+  if (! som_bfd_write_aux_id (abfd, aux_id))
+    return 0;
 
-#ifndef _PA_RISC_MAXID
-#define _PA_RISC_MAXID	0x2FF
-#endif /* _PA_RISC_MAXID */
+  H_PUT_32 (abfd, string_length, &len);
+  if (bfd_bwrite (&len, sizeof len, abfd) != sizeof len)
+    return 0;
 
-#ifndef _PA_RISC_ID
-#define _PA_RISC_ID(__m_num)		\
-    (((__m_num) == _PA_RISC1_0_ID) ||	\
-     ((__m_num) >= _PA_RISC1_1_ID && (__m_num) <= _PA_RISC_MAXID))
-#endif /* _PA_RISC_ID */
+  if (bfd_bwrite (string, string_length, abfd) != string_length)
+    return 0;
 
-/* HIUX in it's infinite stupidity changed the names for several "well
-   known" constants.  Work around such braindamage.  Try the HPUX version
-   first, then the HIUX version, and finally provide a default.  */
-#ifdef HPUX_AUX_ID
-#define EXEC_AUX_ID HPUX_AUX_ID
-#endif
+  pad = aux_id->length - string_length - sizeof len;
+  if (pad && bfd_bwrite (zeroes, pad, abfd) != pad)
+    return 0;
 
-#if !defined (EXEC_AUX_ID) && defined (HIUX_AUX_ID)
-#define EXEC_AUX_ID HIUX_AUX_ID
-#endif
+  return sizeof (struct aux_id) + sizeof len + string_length + pad;
+}
 
-#ifndef EXEC_AUX_ID
-#define EXEC_AUX_ID 0
-#endif
+/* Computes the 32bit XOR checksum of a buffer */
+static uint32_t
+xor_checksum (void *data, size_t size)
+{
+  uint32_t checksum;
+  uint32_t *p = (uint32_t *) data;
+  uint32_t *end = (uint32_t *) ((char *) data + size);
 
+  BFD_ASSERT (size % sizeof (uint32_t) == 0);
+  checksum = 0;
+  while (p < end)
+    checksum ^= *p++;
+  return checksum;
+}
+
 /* Size (in chars) of the temporary buffers used during fixup and string
    table writes.   */
 
@@ -634,53 +670,8 @@
   -1
 };
 
-/* These apparently are not in older versions of hpux reloc.h (hpux7).  */
-#ifndef R_DLT_REL
-#define R_DLT_REL 0x78
-#endif
+/* #define NO_PCREL_MODES - only for < PA_2_0 */
 
-#ifndef R_AUX_UNWIND
-#define R_AUX_UNWIND 0xcf
-#endif
-
-#ifndef R_SEC_STMT
-#define R_SEC_STMT 0xd7
-#endif
-
-/* And these first appeared in hpux10.  */
-#ifndef R_SHORT_PCREL_MODE
-#define NO_PCREL_MODES
-#define R_SHORT_PCREL_MODE 0x3e
-#endif
-
-#ifndef R_LONG_PCREL_MODE
-#define R_LONG_PCREL_MODE 0x3f
-#endif
-
-#ifndef R_N0SEL
-#define R_N0SEL 0xd8
-#endif
-
-#ifndef R_N1SEL
-#define R_N1SEL 0xd9
-#endif
-
-#ifndef R_LINETAB
-#define R_LINETAB 0xda
-#endif
-
-#ifndef R_LINETAB_ESC
-#define R_LINETAB_ESC 0xdb
-#endif
-
-#ifndef R_LTP_OVERRIDE
-#define R_LTP_OVERRIDE 0xdc
-#endif
-
-#ifndef R_COMMENT
-#define R_COMMENT 0xdd
-#endif
-
 #define SOM_HOWTO(TYPE, NAME)	\
   HOWTO(TYPE, 0, 0, 32, FALSE, 0, 0, hppa_som_reloc, NAME, FALSE, 0, 0, FALSE)
 
@@ -1648,7 +1639,7 @@
 static const bfd_target *
 som_object_setup (bfd *abfd,
 		  struct header *file_hdrp,
-		  struct som_exec_auxhdr *aux_hdrp,
+		  struct internal_som_exec_auxhdr *aux_hdrp,
 		  unsigned long current_offset)
 {
   asection *section;
@@ -1796,8 +1787,8 @@
   /* Loop over all of the space dictionaries, building up sections.  */
   for (space_index = 0; space_index < file_hdr->space_total; space_index++)
     {
-      struct space_dictionary_record space;
-      struct som_subspace_dictionary_record subspace, save_subspace;
+      struct internal_space_dictionary_record space;
+      struct internal_subspace_dictionary_record subspace, save_subspace;
       unsigned int subspace_index;
       asection *space_asect;
       bfd_size_type space_size = 0;
@@ -1806,11 +1797,11 @@
       /* Read the space dictionary element.  */
       if (bfd_seek (abfd,
 		    (current_offset + file_hdr->space_location
-		     + space_index * sizeof space),
+		     + space_index * sizeof (struct space_dictionary_record)),
 		    SEEK_SET) != 0)
 	goto error_return;
-      amt = sizeof space;
-      if (bfd_bread (&space, amt, abfd) != amt)
+
+      if (! som_bfd_read_space_dictionary_record (abfd, &space))
 	goto error_return;
 
       /* Setup the space name string.  */
@@ -1843,16 +1834,17 @@
       /* Now, read in the first subspace for this space.  */
       if (bfd_seek (abfd,
 		    (current_offset + file_hdr->subspace_location
-		     + space.subspace_index * sizeof subspace),
+		     + space.subspace_index 
+		       * sizeof (struct subspace_dictionary_record)),
 		    SEEK_SET) != 0)
 	goto error_return;
-      amt = sizeof subspace;
-      if (bfd_bread (&subspace, amt, abfd) != amt)
+      if (! som_bfd_read_subspace_dictionary_record(abfd, &subspace))
 	goto error_return;
       /* Seek back to the start of the subspaces for loop below.  */
       if (bfd_seek (abfd,
 		    (current_offset + file_hdr->subspace_location
-		     + space.subspace_index * sizeof subspace),
+		     + space.subspace_index 
+		       * sizeof (struct subspace_dictionary_record)),
 		    SEEK_SET) != 0)
 	goto error_return;
 
@@ -1875,8 +1867,7 @@
 	  asection *subspace_asect;
 
 	  /* Read in the next subspace.  */
-	  amt = sizeof subspace;
-	  if (bfd_bread (&subspace, amt, abfd) != amt)
+	  if (! som_bfd_read_subspace_dictionary_record(abfd, &subspace))
 	    goto error_return;
 
 	  /* Setup the subspace name string.  */
@@ -1913,7 +1904,7 @@
 	     header as the key.  Then we can assign correct
 	     subspace indices.  */
 	  total_subspaces++;
-	  subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace);
+	  subspace_asect->target_index = bfd_tell (abfd) - sizeof (struct subspace_dictionary_record);
 
 	  /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
 	     by the access_control_bits in the subspace header.  */
@@ -2069,15 +2060,13 @@
 som_object_p (bfd *abfd)
 {
   struct header file_hdr;
-  struct som_exec_auxhdr *aux_hdr_ptr = NULL;
+  struct internal_som_exec_auxhdr *aux_hdr_ptr = NULL;
   unsigned long current_offset = 0;
   struct lst_header lst_header;
   struct som_entry som_entry;
-  bfd_size_type amt;
 #define ENTRY_SIZE sizeof (struct som_entry)
 
-  amt = FILE_HDR_SIZE;
-  if (bfd_bread ((void *) &file_hdr, amt, abfd) != amt)
+  if (! som_bfd_read_header (abfd, &file_hdr))
     {
       if (bfd_get_error () != bfd_error_system_call)
 	bfd_set_error (bfd_error_wrong_format);
@@ -2118,8 +2107,7 @@
 	  return NULL;
 	}
 
-      amt = SLSTHDR;
-      if (bfd_bread ((void *) &lst_header, amt, abfd) != amt)
+      if (! som_bfd_read_lst_header(abfd, &lst_header))
 	{
 	  if (bfd_get_error () != bfd_error_system_call)
 	    bfd_set_error (bfd_error_wrong_format);
@@ -2135,8 +2123,7 @@
 	  return NULL;
 	}
 
-      amt = ENTRY_SIZE;
-      if (bfd_bread ((void *) &som_entry, amt, abfd) != amt)
+      if (! som_bfd_read_som_entry(abfd, &som_entry))
 	{
 	  if (bfd_get_error () != bfd_error_system_call)
 	    bfd_set_error (bfd_error_wrong_format);
@@ -2155,8 +2142,7 @@
       current_offset = som_entry.location;
 
       /* And finally, re-read the som header.  */
-      amt = FILE_HDR_SIZE;
-      if (bfd_bread ((void *) &file_hdr, amt, abfd) != amt)
+      if (! som_bfd_read_header (abfd, &file_hdr))
 	{
 	  if (bfd_get_error () != bfd_error_system_call)
 	    bfd_set_error (bfd_error_wrong_format);
@@ -2187,8 +2173,7 @@
 				(bfd_size_type) sizeof (*aux_hdr_ptr));
       if (aux_hdr_ptr == NULL)
 	return NULL;
-      amt = AUX_HDR_SIZE;
-      if (bfd_bread ((void *) aux_hdr_ptr, amt, abfd) != amt)
+      if (! som_bfd_read_som_exec_auxhdr (abfd, aux_hdr_ptr))
 	{
 	  if (bfd_get_error () != bfd_error_system_call)
 	    bfd_set_error (bfd_error_wrong_format);
@@ -2239,7 +2224,7 @@
   if (abfd->flags & (EXEC_P | DYNAMIC))
     {
       /* Make and attach an exec header to the BFD.  */
-      amt = sizeof (struct som_exec_auxhdr);
+      amt = sizeof (struct internal_som_exec_auxhdr);
       obj_som_exec_hdr (abfd) = bfd_zalloc (abfd, amt);
       if (obj_som_exec_hdr (abfd) == NULL)
 	return FALSE;
@@ -2281,7 +2266,7 @@
       if (som_is_space (section))
 	{
 	  /* Allocate space for the space dictionary.  */
-	  amt = sizeof (struct space_dictionary_record);
+	  amt = sizeof (struct internal_space_dictionary_record);
 	  som_section_data (section)->space_dict = bfd_zalloc (abfd, amt);
 	  if (som_section_data (section)->space_dict == NULL)
 	    return FALSE;
@@ -2303,7 +2288,7 @@
       else
 	{
 	  /* Allocate space for the subspace dictionary.  */
-	  amt = sizeof (struct som_subspace_dictionary_record);
+	  amt = sizeof (struct internal_subspace_dictionary_record);
 	  som_section_data (section)->subspace_dict = bfd_zalloc (abfd, amt);
 	  if (som_section_data (section)->subspace_dict == NULL)
 	    return FALSE;
@@ -3003,7 +2988,8 @@
 	 current buffer contents now and maybe allocate a larger
 	 buffer.  Each entry will take 4 bytes to hold the string
 	 length + the string itself + null terminator.  */
-      if (p - tmp_space + 5 + length > tmp_space_size)
+      /* Plus another at most 3 bytes for padding */
+      if (p - tmp_space + 5 + length + 3 > tmp_space_size)
 	{
 	  /* Flush buffer before refilling or reallocating.  */
 	  amt = p - tmp_space;
@@ -3021,6 +3007,7 @@
 		 returning from this function.)  The same technique is
 		 used a few more times below when a buffer is
 		 reallocated.  */
+	      /* XXX: Perhaps replace this scheme with bfd_realloc2()? */
 	      tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
 	      tmp_space = alloca (tmp_space_size);
 	    }
@@ -3072,7 +3059,7 @@
 			  asymbol **syms,
 			  unsigned int num_syms,
 			  unsigned int *string_sizep,
-			  COMPUNIT *compilation_unit)
+			  internal_COMPUNIT *compilation_unit)
 {
   unsigned int i;
 
@@ -3114,7 +3101,7 @@
 	  /* If there is not enough room for the next entry, then dump
 	     the current buffer contents now and maybe allocate a
 	     larger buffer.  */
-	  if (p - tmp_space + 5 + length > tmp_space_size)
+	  if (p - tmp_space + 5 + length + 3 > tmp_space_size)
 	    {
 	      /* Flush buffer before refilling or reallocating.  */
 	      amt = p - tmp_space;
@@ -3183,7 +3170,7 @@
 
       /* If there is not enough room for the next entry, then dump the
 	 current buffer contents now and maybe allocate a larger buffer.  */
-     if (p - tmp_space + 5 + length > tmp_space_size)
+     if (p - tmp_space + 5 + length + 3 > tmp_space_size)
 	{
 	  /* Flush buffer before refilling or reallocating.  */
 	  amt = p - tmp_space;
@@ -3247,7 +3234,7 @@
   unsigned long num_spaces, num_subspaces, i;
   asection *section;
   unsigned int total_subspaces = 0;
-  struct som_exec_auxhdr *exec_header = NULL;
+  struct internal_som_exec_auxhdr *exec_header = NULL;
 
   /* The file header will always be first in an object file,
      everything else can be in random locations.  To keep things
@@ -3276,7 +3263,7 @@
       obj_som_file_hdr (abfd)->aux_header_size
 	+= sizeof (struct som_exec_auxhdr);
       exec_header = obj_som_exec_hdr (abfd);
-      exec_header->som_auxhdr.type = EXEC_AUX_ID;
+      exec_header->som_auxhdr.type = HPUX_AUX_ID;
       exec_header->som_auxhdr.length = 40;
     }
   if (obj_som_version_hdr (abfd) != NULL)
@@ -3287,19 +3274,14 @@
 	return FALSE;
 
       /* Write the aux_id structure and the string length.  */
-      len = sizeof (struct aux_id) + sizeof (unsigned int);
-      obj_som_file_hdr (abfd)->aux_header_size += len;
-      current_offset += len;
-      if (bfd_bwrite ((void *) obj_som_version_hdr (abfd), len, abfd) != len)
+      len = som_bfd_write_aux_id_and_string (abfd, 
+	    &obj_som_version_hdr (abfd)->header_id,
+	    obj_som_version_hdr (abfd)->string_length,
+	    obj_som_version_hdr (abfd)->user_string);
+      if (!len)
 	return FALSE;
-
-      /* Write the version string.  */
-      len = obj_som_version_hdr (abfd)->header_id.length - sizeof (int);
-      obj_som_file_hdr (abfd)->aux_header_size += len;
       current_offset += len;
-      if (bfd_bwrite ((void *) obj_som_version_hdr (abfd)->user_string, len, abfd)
-	  != len)
-	return FALSE;
+      obj_som_file_hdr (abfd)->aux_header_size += len;
     }
 
   if (obj_som_copyright_hdr (abfd) != NULL)
@@ -3310,19 +3292,14 @@
 	return FALSE;
 
       /* Write the aux_id structure and the string length.  */
-      len = sizeof (struct aux_id) + sizeof (unsigned int);
-      obj_som_file_hdr (abfd)->aux_header_size += len;
-      current_offset += len;
-      if (bfd_bwrite ((void *) obj_som_copyright_hdr (abfd), len, abfd) != len)
+      len = som_bfd_write_aux_id_and_string (abfd, 
+	    &obj_som_copyright_hdr (abfd)->header_id,
+	    obj_som_copyright_hdr (abfd)->string_length,
+	    obj_som_copyright_hdr (abfd)->copyright);
+      if (!len)
 	return FALSE;
-
-      /* Write the copyright string.  */
-      len = obj_som_copyright_hdr (abfd)->header_id.length - sizeof (int);
-      obj_som_file_hdr (abfd)->aux_header_size += len;
       current_offset += len;
-      if (bfd_bwrite ((void *) obj_som_copyright_hdr (abfd)->copyright, len, abfd)
-	  != len)
-	return FALSE;
+      obj_som_file_hdr (abfd)->aux_header_size += len;
     }
 
   /* Next comes the initialization pointers; we have no initialization
@@ -3355,13 +3332,14 @@
   obj_som_file_hdr (abfd)->subspace_location = current_offset;
   obj_som_file_hdr (abfd)->subspace_total = num_subspaces;
   current_offset
-    += num_subspaces * sizeof (struct som_subspace_dictionary_record);
+    += num_subspaces * sizeof (struct subspace_dictionary_record);
 
   /* Next is the string table for the space/subspace names.  We will
      build and write the string table on the fly.  At the same time
      we will fill in the space/subspace name index fields.  */
 
   /* The string table needs to be aligned on a word boundary.  */
+  /* XXX: Unnecessary? all prior structures written are word aligned */
   if (current_offset % 4)
     current_offset += (4 - (current_offset % 4));
 
@@ -3599,6 +3577,7 @@
   unsigned long current_offset;
   unsigned int strings_size, total_reloc_size;
   bfd_size_type amt;
+  struct header header_target;
 
   /* We must set up the version identifier here as objcopy/strip copy
      private BFD data too late for us to handle this in som_begin_writing.  */
@@ -3729,9 +3708,8 @@
 	  som_section_data (subsection)->subspace_dict->space_index = i;
 
 	  /* Dump the current subspace header.  */
-	  amt = sizeof (struct som_subspace_dictionary_record);
-	  if (bfd_bwrite ((void *) som_section_data (subsection)->subspace_dict,
-			 amt, abfd) != amt)
+	  if (! som_bfd_write_subspace_dictionary_record (abfd, 
+		      som_section_data (subsection)->subspace_dict))
 	    return FALSE;
 	}
       /* Goto the next section.  */
@@ -3785,9 +3763,8 @@
 	  som_section_data (subsection)->subspace_dict->space_index = i;
 
 	  /* Dump this subspace header.  */
-	  amt = sizeof (struct som_subspace_dictionary_record);
-	  if (bfd_bwrite ((void *) som_section_data (subsection)->subspace_dict,
-			 amt, abfd) != amt)
+	  if (! som_bfd_write_subspace_dictionary_record (abfd,
+		    som_section_data (subsection)->subspace_dict))
 	    return FALSE;
 	}
       /* Goto the next section.  */
@@ -3811,9 +3788,8 @@
 	section = section->next;
 
       /* Dump its header.  */
-      amt = sizeof (struct space_dictionary_record);
-      if (bfd_bwrite ((void *) som_section_data (section)->space_dict,
-		     amt, abfd) != amt)
+      if (! som_bfd_write_space_dictionary_record (abfd,
+		som_section_data (section)->space_dict))
 	return FALSE;
 
       /* Goto the next section.  */
@@ -3827,8 +3803,8 @@
       if (bfd_seek (abfd, location, SEEK_SET) != 0)
 	return FALSE;
 
-      amt = COMPUNITSZ;
-      if (bfd_bwrite ((void *) obj_som_compilation_unit (abfd), amt, abfd) != amt)
+      if (! som_bfd_write_compilation_unit (abfd,
+		obj_som_compilation_unit (abfd)))
 	return FALSE;
     }
 
@@ -3843,23 +3819,28 @@
   else
     obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0;
 
+  /* Convert the working header structure into target endianness */
+  obj_som_file_hdr (abfd)->checksum = 0;
+  som_bfd_put_header (abfd, obj_som_file_hdr (abfd), &header_target);
+
   /* Compute the checksum for the file header just before writing
      the header to disk.  */
-  obj_som_file_hdr (abfd)->checksum = som_compute_checksum (abfd);
+  /* XOR checksums will be correct regardless of host endianness */
+  header_target.checksum = xor_checksum (&header_target, sizeof header_target);
 
   /* Only thing left to do is write out the file header.  It is always
      at location zero.  Seek there and write it.  */
   if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
     return FALSE;
   amt = sizeof (struct header);
-  if (bfd_bwrite ((void *) obj_som_file_hdr (abfd), amt, abfd) != amt)
+  if (bfd_bwrite ((void *) &header_target, amt, abfd) != amt)
     return FALSE;
 
   /* Now write the exec header.  */
   if (abfd->flags & (EXEC_P | DYNAMIC))
     {
       long tmp, som_length;
-      struct som_exec_auxhdr *exec_header;
+      struct internal_som_exec_auxhdr *exec_header;
 
       exec_header = obj_som_exec_hdr (abfd);
       exec_header->exec_entry = bfd_get_start_address (abfd);
@@ -3889,29 +3870,12 @@
 		    SEEK_SET) != 0)
 	return FALSE;
 
-      amt = AUX_HDR_SIZE;
-      if (bfd_bwrite ((void *) exec_header, amt, abfd) != amt)
+      if (! som_bfd_write_som_exec_auxhdr (abfd, exec_header))
 	return FALSE;
     }
   return TRUE;
 }
 
-/* Compute and return the checksum for a SOM file header.  */
-
-static unsigned long
-som_compute_checksum (bfd *abfd)
-{
-  unsigned long checksum, count, i;
-  unsigned long *buffer = (unsigned long *) obj_som_file_hdr (abfd);
-
-  checksum = 0;
-  count = sizeof (struct header) / sizeof (unsigned long);
-  for (i = 0; i < count; i++)
-    checksum ^= *(buffer + i);
-
-  return checksum;
-}
-
 static void
 som_bfd_derive_misc_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
 				 asymbol *sym,
@@ -4076,14 +4040,14 @@
   unsigned int num_syms = bfd_get_symcount (abfd);
   file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location;
   asymbol **bfd_syms = obj_som_sorted_syms (abfd);
-  struct symbol_dictionary_record *som_symtab = NULL;
+  struct internal_symbol_dictionary_record *som_symtab = NULL;
   unsigned int i;
   bfd_size_type symtab_size;
 
   /* Compute total symbol table size and allocate a chunk of memory
      to hold the symbol table as we build it.  */
   symtab_size = num_syms;
-  symtab_size *= sizeof (struct symbol_dictionary_record);
+  symtab_size *= sizeof (struct internal_symbol_dictionary_record);
   som_symtab = bfd_zmalloc (symtab_size);
   if (som_symtab == NULL && symtab_size != 0)
     goto error_return;
@@ -4119,8 +4083,11 @@
   if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
     return FALSE;
 
-  if (bfd_bwrite ((void *) som_symtab, symtab_size, abfd) != symtab_size)
-    goto error_return;
+  for (i = 0; i < num_syms; i++)
+    {
+      if (! som_bfd_write_symbol_dictionary_record (abfd, &som_symtab[i]))
+        goto error_return;
+    }
 
   if (som_symtab != NULL)
     free (som_symtab);
@@ -4203,7 +4170,8 @@
 /* Convert from a SOM subspace index to a BFD section.  */
 
 static asection *
-bfd_section_from_som_symbol (bfd *abfd, struct symbol_dictionary_record *symbol)
+bfd_section_from_som_symbol (bfd *abfd, 
+    struct internal_symbol_dictionary_record *symbol)
 {
   asection *section;
 
@@ -4242,13 +4210,13 @@
 
 /* Read and save the symbol table associated with the given BFD.  */
 
-static unsigned int
+static bfd_boolean
 som_slurp_symbol_table (bfd *abfd)
 {
   int symbol_count = bfd_get_symcount (abfd);
   int symsize = sizeof (struct symbol_dictionary_record);
   char *stringtab;
-  struct symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
+  struct symbol_dictionary_record *buf = NULL, *ibufp, *endbufp;
   som_symbol_type *sym, *symbase;
   bfd_size_type amt;
 
@@ -4284,8 +4252,13 @@
 
   /* Iterate over all the symbols and internalize them.  */
   endbufp = buf + symbol_count;
-  for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp)
+  for (ibufp = buf, sym = symbase; ibufp < endbufp; ++ibufp)
     {
+      struct internal_symbol_dictionary_record tmp_sdrec, *bufp = &tmp_sdrec;
+
+      /* Convert from target format to an internal format */
+      som_bfd_get_symbol_dictionary_record (abfd, ibufp, bufp);
+	
       /* I don't think we care about these.  */
       if (bufp->symbol_type == ST_SYM_EXT
 	  || bufp->symbol_type == ST_ARG_EXT)
@@ -5076,8 +5049,8 @@
 static bfd_boolean
 som_bfd_print_private_bfd_data (bfd *abfd, void *farg)
 {
-  struct som_exec_auxhdr *exec_header;
-  struct aux_id* auxhdr;
+  struct internal_som_exec_auxhdr *exec_header;
+  struct internal_aux_id* auxhdr;
   FILE *f;
 
   f = (FILE *) farg;
@@ -5204,15 +5177,15 @@
 
       if (len % 4)
 	pad = (4 - (len % 4));
-      amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
+      amt = sizeof *obj_som_version_hdr (abfd);
       obj_som_version_hdr (abfd) = bfd_zalloc (abfd, amt);
       if (!obj_som_version_hdr (abfd))
 	return FALSE;
       obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID;
       obj_som_version_hdr (abfd)->header_id.length = len + pad;
-      obj_som_version_hdr (abfd)->header_id.length += sizeof (int);
+      obj_som_version_hdr (abfd)->header_id.length += sizeof (uint32_t);
       obj_som_version_hdr (abfd)->string_length = len;
-      strncpy (obj_som_version_hdr (abfd)->user_string, string, len);
+      obj_som_version_hdr (abfd)->user_string = strdup(string);
     }
   else if (type == COPYRIGHT_AUX_ID)
     {
@@ -5221,15 +5194,15 @@
 
       if (len % 4)
 	pad = (4 - (len % 4));
-      amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
+      amt = sizeof *obj_som_copyright_hdr (abfd);
       obj_som_copyright_hdr (abfd) = bfd_zalloc (abfd, amt);
       if (!obj_som_copyright_hdr (abfd))
 	return FALSE;
       obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID;
       obj_som_copyright_hdr (abfd)->header_id.length = len + pad;
-      obj_som_copyright_hdr (abfd)->header_id.length += sizeof (int);
+      obj_som_copyright_hdr (abfd)->header_id.length += sizeof (uint32_t);
       obj_som_copyright_hdr (abfd)->string_length = len;
-      strcpy (obj_som_copyright_hdr (abfd)->copyright, string);
+      obj_som_copyright_hdr (abfd)->copyright = strdup(string);
     }
   return TRUE;
 }
@@ -5244,7 +5217,8 @@
 				 const char *product_id,
 				 const char *version_id)
 {
-  COMPUNIT *n = (COMPUNIT *) bfd_zalloc (abfd, (bfd_size_type) COMPUNITSZ);
+  internal_COMPUNIT *n = (internal_COMPUNIT *) bfd_zalloc (abfd, 
+    (bfd_size_type) internal_COMPUNITSZ);
 
   if (n == NULL)
     return FALSE;
@@ -5438,12 +5412,12 @@
 			  symindex *count)
 {
   unsigned int i;
-  unsigned int *hash_table = NULL;
+  uint32_t *hash_table = NULL;
   bfd_size_type amt;
   file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
 
   amt = lst_header->hash_size;
-  amt *= sizeof (unsigned int);
+  amt *= sizeof (uint32_t);
   hash_table = bfd_malloc (amt);
   if (hash_table == NULL && lst_header->hash_size != 0)
     goto error_return;
@@ -5460,19 +5434,20 @@
      chain.  */
   for (i = 0; i < lst_header->hash_size; i++)
     {
-      struct lst_symbol_record lst_symbol;
+      struct internal_lst_symbol_record lst_symbol;
+      uint32_t index;
 
       /* An empty chain has zero as it's file offset.  */
-      if (hash_table[i] == 0)
+      index = H_GET_32 (abfd, &hash_table[i]);
+      if (index == 0)
 	continue;
 
       /* Seek to the first symbol in this hash chain.  */
-      if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
+      if (bfd_seek (abfd, lst_filepos + index, SEEK_SET) != 0)
 	goto error_return;
 
       /* Read in this symbol and update the counter.  */
-      amt = sizeof (lst_symbol);
-      if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
+      if (! som_bfd_read_lst_symbol_record (abfd, &lst_symbol))
 	goto error_return;
 
       (*count)++;
@@ -5487,8 +5462,7 @@
 	    goto error_return;
 
 	  /* Read the symbol in and update the counter.  */
-	  amt = sizeof (lst_symbol);
-	  if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
+	  if (! som_bfd_read_lst_symbol_record (abfd, &lst_symbol))
 	    goto error_return;
 
 	  (*count)++;
@@ -5514,13 +5488,13 @@
 {
   unsigned int i, len;
   carsym *set = syms[0];
-  unsigned int *hash_table = NULL;
+  uint32_t *hash_table = NULL;
   struct som_entry *som_dict = NULL;
   bfd_size_type amt;
   file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
 
   amt = lst_header->hash_size;
-  amt *= sizeof (unsigned int);
+  amt *= sizeof (uint32_t);
   hash_table = bfd_malloc (amt);
   if (hash_table == NULL && lst_header->hash_size != 0)
     goto error_return;
@@ -5548,13 +5522,14 @@
   for (i = 0; i < lst_header->hash_size; i++)
     {
       struct lst_symbol_record lst_symbol;
+      uint32_t index = bfd_get_32 (abfd, &hash_table[i]);
 
       /* An empty chain has zero as it's file offset.  */
-      if (hash_table[i] == 0)
+      if (index == 0)
 	continue;
 
       /* Seek to and read the first symbol on the chain.  */
-      if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
+      if (bfd_seek (abfd, lst_filepos + index, SEEK_SET) != 0)
 	goto error_return;
 
       amt = sizeof (lst_symbol);
@@ -5586,7 +5561,8 @@
 
       /* Fill in the file offset.  Note that the "location" field points
 	 to the SOM itself, not the ar_hdr in front of it.  */
-      set->file_offset = som_dict[lst_symbol.som_index].location
+      set->file_offset = bfd_get_32 (abfd,
+				     &som_dict[lst_symbol.som_index].location)
 			  - sizeof (struct ar_hdr);
 
       /* Go to the next symbol.  */
@@ -5623,7 +5599,8 @@
 
 	  /* Fill in the file offset.  Note that the "location" field points
 	     to the SOM itself, not the ar_hdr in front of it.  */
-	  set->file_offset = som_dict[lst_symbol.som_index].location
+	  set->file_offset = bfd_get_32 (abfd,
+				     &som_dict[lst_symbol.som_index].location)
 			       - sizeof (struct ar_hdr);
 
 	  /* Go on to the next symbol.  */
@@ -5700,8 +5677,7 @@
 
   /* Read in the library symbol table.  We'll make heavy use of this
      in just a minute.  */
-  amt = sizeof (struct lst_header);
-  if (bfd_bread ((void *) &lst_header, amt, abfd) != amt)
+  if (! som_bfd_read_lst_header (abfd, &lst_header))
     return FALSE;
 
   /* Sanity check.  */
@@ -5846,16 +5822,17 @@
 {
   file_ptr lst_filepos;
   char *strings = NULL, *p;
-  struct lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
+  struct internal_lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
   bfd *curr_bfd;
-  unsigned int *hash_table = NULL;
+  uint32_t *hash_table = NULL;
   struct som_entry *som_dict = NULL;
-  struct lst_symbol_record **last_hash_entry = NULL;
+  struct internal_lst_symbol_record **last_hash_entry = NULL;
   unsigned int curr_som_offset, som_index = 0;
   bfd_size_type amt;
+  unsigned int i;
 
   amt = lst.hash_size;
-  amt *= sizeof (unsigned int);
+  amt *= sizeof (uint32_t);
   hash_table = bfd_zmalloc (amt);
   if (hash_table == NULL && lst.hash_size != 0)
     goto error_return;
@@ -5901,7 +5878,7 @@
 
   /* FIXME should be done with buffers just like everything else...  */
   amt = nsyms;
-  amt *= sizeof (struct lst_symbol_record);
+  amt *= sizeof (struct internal_lst_symbol_record);
   lst_syms = bfd_malloc (amt);
   if (lst_syms == NULL && nsyms != 0)
     goto error_return;
@@ -5991,7 +5968,7 @@
 	  /* Insert into the hash table.  */
 	  if (hash_table[curr_lst_sym->symbol_key % lst.hash_size])
 	    {
-	      struct lst_symbol_record *tmp;
+	      struct internal_lst_symbol_record *tmp;
 
 	      /* There is already something at the head of this hash chain,
 		 so tack this symbol onto the end of the chain.  */
@@ -6020,7 +5997,7 @@
 	  p += 4;
 	  strcpy (p, sym->symbol.name);
 	  p += strlen (sym->symbol.name) + 1;
-	  while ((int) p % 4)
+	  while ((p - strings) % 4)
 	    {
 	      bfd_put_8 (abfd, 0, p);
 	      p++;
@@ -6043,19 +6020,24 @@
     }
 
   /* Now scribble out the hash table.  */
+  for (i = 0; i < lst.hash_size; i++)
+    {
+      uint32_t hash = hash_table[i];
+      bfd_put_32 (abfd, hash, &hash_table[i]);
+    }
   amt = lst.hash_size * 4;
   if (bfd_bwrite ((void *) hash_table, amt, abfd) != amt)
     goto error_return;
 
   /* Then the SOM dictionary.  */
-  amt = lst.module_count * sizeof (struct som_entry);
-  if (bfd_bwrite ((void *) som_dict, amt, abfd) != amt)
-    goto error_return;
+  for (i = 0; i < lst.module_count; i++)
+    if (!som_bfd_write_som_entry (abfd, &som_dict[i]))
+      goto error_return;
 
   /* The library symbols.  */
-  amt = nsyms * sizeof (struct lst_symbol_record);
-  if (bfd_bwrite ((void *) lst_syms, amt, abfd) != amt)
-    goto error_return;
+  for (i = 0; i < nsyms; i++)
+    if (!som_bfd_write_lst_symbol_record (abfd, &lst_syms[i]))
+      goto error_return;
 
   /* And finally the strings.  */
   amt = string_size;
@@ -6105,7 +6087,7 @@
   unsigned int i, lst_size, nsyms, stringsize;
   struct ar_hdr hdr;
   struct lst_header lst;
-  int *p;
+  struct lst_header lst_target;
   bfd_size_type amt;
 
   /* We'll use this for the archive's date and mode later.  */
@@ -6179,10 +6161,10 @@
 
   /* Compute the checksum.  Must happen after the entire lst header
      has filled in.  */
-  p = (int *) &lst;
   lst.checksum = 0;
-  for (i = 0; i < sizeof (struct lst_header) / sizeof (int) - 1; i++)
-    lst.checksum ^= *p++;
+  som_bfd_put_lst_header (abfd, &lst, &lst_target);
+  /* Note: XOR checksum is valid regardless of host endianness */
+  lst_target.checksum = xor_checksum (&lst_target, sizeof lst_target);
 
   sprintf (hdr.ar_name, "/               ");
   sprintf (hdr.ar_date, "%ld", bfd_ardata (abfd)->armap_timestamp);
@@ -6205,7 +6187,7 @@
 
   /* Now scribble out the lst header.  */
   amt = sizeof (struct lst_header);
-  if (bfd_bwrite ((void *) &lst, amt, abfd) != amt)
+  if (bfd_bwrite ((void *) &lst_target, amt, abfd) != amt)
     return FALSE;
 
   /* Build and write the armap.  */
@@ -6343,4 +6325,3 @@
   NULL
 };
 
-#endif /* HOST_HPPAHPUX || HOST_HPPABSD || HOST_HPPAOSF */
Index: bfd/som.h
===================================================================
--- bfd/som.h	(revision 6)
+++ bfd/som.h	(working copy)
@@ -4,6 +4,7 @@
 
    Contributed by the Center for Software Science at the
    University of Utah (pa-gdb-bugs@cs.utah.edu).
+   Made portable by David Leonard of Quest Software, Inc.
 
    This file is part of BFD, the Binary File Descriptor library.
 
@@ -27,31 +28,11 @@
 
 #include "libhppa.h"
 
-/* We want reloc.h to provide PA 2.0 defines.  */
 #define PA_2_0
+#include "som/a.out.h"
+#include "som/lst.h"
+#include "aout/ar.h"
 
-#include <a.out.h>
-#include <lst.h>
-#include <ar.h>
-
-/* The SOM BFD backend doesn't currently use anything from these
-   two include files, but it's likely to need them in the future.  */
-#ifdef R_DLT_REL
-#include <shl.h>
-#include <dl.h>
-#endif
-
-#if defined(HOST_HPPABSD) || defined (HOST_HPPAOSF)
-/* BSD uses a completely different scheme for object file identification.
-   so for now, define _PA_RISC_ID to accept any random value for a model
-   number.  */
-#undef _PA_RISC_ID
-#define _PA_RISC_ID(__m_num) 1
-#endif /* HOST_HPPABSD */
-
-#define FILE_HDR_SIZE sizeof (struct header)
-#define AUX_HDR_SIZE sizeof (struct som_exec_auxhdr)
-
 typedef struct som_symbol
 {
   asymbol symbol;
@@ -117,10 +98,10 @@
      generated from scratch.  They need not be copied for objcopy
      or strip to work.  */
   struct header *file_hdr;
-  struct copyright_aux_hdr *copyright_aux_hdr;
-  struct user_string_aux_hdr *version_aux_hdr;
-  struct som_exec_auxhdr *exec_hdr;
-  COMPUNIT *comp_unit;
+  struct internal_copyright_aux_hdr *copyright_aux_hdr;
+  struct internal_user_string_aux_hdr *version_aux_hdr;
+  struct internal_som_exec_auxhdr *exec_hdr;
+  internal_COMPUNIT *comp_unit;
 
   /* Pointers to a saved copy of the symbol and string tables.  These
      need not be copied for objcopy or strip to work.  */
@@ -143,35 +124,6 @@
   struct somdata a;
 };
 
-struct som_subspace_dictionary_record
-{
-  int space_index;
-  unsigned int access_control_bits : 7;
-  unsigned int memory_resident : 1;
-  unsigned int dup_common : 1;
-  unsigned int is_common : 1;
-  unsigned int is_loadable : 1;
-  unsigned int quadrant : 2;
-  unsigned int initially_frozen : 1;
-  unsigned int is_first : 1;
-  unsigned int code_only : 1;
-  unsigned int sort_key : 8;
-  unsigned int replicate_init	: 1;
-  unsigned int continuation : 1;
-  unsigned int is_tspecific : 1;
-  unsigned int is_comdat : 1;
-  unsigned int reserved : 4;
-  int file_loc_init_value;
-  unsigned int initialization_length;
-  unsigned int subspace_start;
-  unsigned int subspace_length;
-  unsigned int reserved2 : 5;   
-  unsigned int alignment :27;
-  union name_pt name;
-  int fixup_request_index;
-  unsigned int fixup_request_quantity;
-};
-
 /* Substructure of som_section_data_struct used to hold information
    which can't be represented by the generic BFD section structure,
    but which must be copied during objcopy or strip.  */
@@ -215,8 +167,8 @@
   struct som_copyable_section_data_struct *copy_data;
   unsigned int reloc_size;
   unsigned char *reloc_stream;
-  struct space_dictionary_record *space_dict;
-  struct som_subspace_dictionary_record *subspace_dict;
+  struct internal_space_dictionary_record *space_dict;
+  struct internal_subspace_dictionary_record *subspace_dict;
 };
 
 #define somdata(bfd)			((bfd)->tdata.som_data->a)

--Boundary-00=_krocHuLsSsQb0xh--

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From - Thu Nov 08 21:01:53 2018
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From: rubisher <rubisher@scarlet.be>
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Subject: iommu_fill_pdir() and its /* Horrible hack. ... */ reading.
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To: Grant Grundler <grundler@parisc-linux.org>
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Grant Grundler wrote:
> On Sun, Dec 23, 2007 at 10:50:34PM +0000, rubisher wrote:
> ...
>> btw do you notice how much way are there (in so few lines) to use a 
>> unsigned 32bits integer: u32, __u32 but also uint32_t, u_int32_t, ...
>>
>> Is there some advise om the best pratice?
> 
> IIRC, Preferred is "u32". But use whatever is consistent with the
> file you are editing.
> 
>> Ah also related to ccio-dma patch test on my c110, it seems that removing 
>> DELAYED_RESOURCE_CNT code help a bit this system with few ram (64Mb only) 
>> to survive a bit longer (enough to debootstrap and download 800Mb to be 
>> installed) but that didn't make the drill: there are still fs corruption 
>> from time to time and some reset on the lasi disk ;-(.
>> This test just seems to confirm an issue of i/o coherency somewhere but 
>> where those rules could be broken???
> 
> ISTR Joel Soete reporting problems for CCIO machines as well.
> Offhand, I don't know what's wrong and we depend on Ryan Bradetich
> and other volunteers to track that down. 
> 
> cheers,
> grant
> 
>> Merry Xmas,
>> 	r.
>> -
Hello Grant,

I suspecting a possible issue with this hack in your iommu_fill_pdir():

you initialized dma_sg with the adress of startsg (/* pointer to current DMA */)
then before the loop you dma_sg--;

(where and what dms_sg point to, I guess we have any idea?)

Now in the while (nents-- > 0), suppose the test "if (sg_dma_address(startsg) & PIDE_FLAG) {" failed,

so later in the loop the "sg_dma_len(dma_sg) += startsg->length" (which is actually "dma_sg->iova_length += startsg->length" 
) imo could corrupt something?

That said I tried to re-use the first implementation of jejb (what was in ccio-dma.c before this patch 
<http://cvs.parisc-linux.org/linux-2.6/drivers/parisc/ccio-dma.c?r1=1.12&r2=1.13> but that doesn't seems to fix the ccio-dma 
issue at all: I can still read those kind of message at the console while doing such copy
[snip]
scsi1: (4:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
scsi1: Bus Reset detected, executing command 10953600, slot 109708a4, dsp 001301e8[01e8] 

  failing command because of reset, slot 10970778, cmnd 12644a00 

  failing command because of reset, slot 109708a4, cmnd 10953600 

scsi1: (4:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN 

scsi1: Bus Reset detected, executing command 12644c40, slot 10970520, dsp 001301e8[01e8] 

  failing command because of reset, slot 10970520, cmnd 12644c40 

scsi1: (4:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN 

scsi1: Bus Reset detected, executing command 109532a0, slot 1097064c, dsp 001301e8[01e8] 

  failing command because of reset, slot 1097064c, cmnd 109532a0 

end_request: I/O error, dev sdc, sector 197250
[snip]
while doing such copy:
root@hpalin:/boot# find . | cpio -mpduv /mnt/OldPA/boot/.
/mnt/OldPA/boot/././vmlinux-cp
/mnt/OldPA/boot/././vmlinux-2.6.23-c110-p2
/mnt/OldPA/boot/././vmlinux-cp13
/mnt/OldPA/boot/././vmlinux-2.6.23-c110
/mnt/OldPA/boot/././vmlinux-cp6
/mnt/OldPA/boot/././config-2.6.23-pa-b180
/mnt/OldPA/boot/././vmlinux-cp9
/mnt/OldPA/boot/././lost+found
/mnt/OldPA/boot/././vmlinux-2.6.23-c110-p4
/mnt/OldPA/boot/././vmlinux-2.6.22-3-parisc
/mnt/OldPA/boot/././config-2.6.23-c110-p15
/mnt/OldPA/boot/././vmlinux-2.6.23-c110-p5
/mnt/OldPA/boot/././vmlinux-2.6.23-c110-p15
/mnt/OldPA/boot/././vmlinux-2.6.23-c110-p10
/mnt/OldPA/boot/././System.map-2.6.22-3-parisc
/mnt/OldPA/boot/././vmlinux-2.6.23-c110-p13
/mnt/OldPA/boot/././vmlinux-2.6.23-c110-p6
/mnt/OldPA/boot/././config-2.6.22-3-parisc
/mnt/OldPA/boot/././vmlinux-cp14
/mnt/OldPA/boot/././initrd.img-2.6.22-3-parisc
/mnt/OldPA/boot/././vmlinux-2.4.17-32
/mnt/OldPA/boot/././vmlinux-cp11
/mnt/OldPA/boot/././vmlinux-cp10
/mnt/OldPA/boot/././vmlinux-cp5
/mnt/OldPA/boot/././vmlinux-cp15
/mnt/OldPA/boot/././System.map-2.4.17-32
/mnt/OldPA/boot/././config-2.6.23-c110-p2
/mnt/OldPA/boot/././vmlinux-2.6.23-pa-b180
/mnt/OldPA/boot/././vmlinux-2.6.23-c110-p14
/mnt/OldPA/boot/././vmlinux-cp4
/mnt/OldPA/boot/././vmlinux-2.6.23-c110-p
/mnt/OldPA/boot/././config-2.4.17-32
/mnt/OldPA/boot/././vmlinux-2.6.23-c110-p9
/mnt/OldPA/boot/././vmlinux
/mnt/OldPA/boot/././vmlinux-2.6.23-c110-p11
/mnt/OldPA/boot/././vmlinux-t
/mnt/OldPA/boot/././vmlinux-co
138420 blocks

(the scsi1 is the lasi scsi hba as sources and the target being the disks on ncr53c720 hba)

or experimenting fs issues on this target disks?


That said ok I will wait either U2/Uturn ers public doc or all volonteers feedback.

Cheers,
	r.
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From - Thu Nov 08 21:01:53 2018
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Subject: Re: Fwd: patch for HPUX SOM on non-HPUX systems
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> This work is part of a cross compiler effort here at Quest, So, I 
> anticipate some more stress testing soon.
> 
> Jeff Law wrote:
> 
> > The SOM code has never been designed to be cross-compilation safe,
> > particularly in terms of endianness and datatype size issues. 
> http://sources.redhat.com/ml/binutils/2002-01/msg00168.html

This is a significant work.  Before it can be considered for inclusion
in binutils, a copyright assignment needs to be on file for the author
with the FSF.

When this is done, submit the change to the binutils list.  CC or ping
me, and I will review the change.

As a note, binutils is now licensed under GPL version 3 or later.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Carlos,

I had a gcc testsuite failure today on my c3k (2.6.22.14) that
suggests there is a random issue with execv.  The test didn't
fail when I reran the test.  xgcc was trying to execv collect2.

This is the backtrace from the core file:

(gdb) bt
#0  0x403cb2b8 in ?? () from /lib/ld.so.1
#1  0x403c2670 in ?? () from /lib/ld.so.1
#2  0x403bd368 in ?? () from /lib/ld.so.1
#3  0x403bd698 in ?? () from /lib/ld.so.1
#4  0x403c0ee4 in ?? () from /lib/ld.so.1
#5  0x403c7cc8 in ?? () from /lib/ld.so.1
#6  0x00027a3c in pex_unix_exec_child (obj=0x42f84, flags=275048,
    executable=0x4afe8 "", argv=0x1, env=0xfb255c48, in=1083198820, out=0,
    errdes=-81437888, toclose=580, errmsg=0xc, err=0x42784)
    at ../../gcc/libiberty/pex-unix.c:433
#7  0x000272f8 in pex_run_in_environment (obj=0x4ecd0, flags=1,
    executable=0x4ec80 "/home/dave/gnu/gcc-4.3/objdir/gcc/collect2",
    argv=0x4bd40, env=0x42f84, orig_outname=0x0,
    errname=0x2b000 ' ' <repeats 19 times>, "Time the execution of each subprocess\n", err=0x6) at ../../gcc/libiberty/pex-common.c:342
#8  0x000274d0 in pex_run (obj=0x10b07, flags=1, executable=0xfb255f08 "",
    argv=0x10a74, orig_outname=0x42f84 "", errname=0xfb255a00 "@=$h",
    err=0x4bd40) at ../../gcc/libiberty/pex-common.c:372
#9  0x00014be8 in execute () at ../../gcc/gcc/gcc.c:2982
#10 0x0001dc08 in main (argc=1077757630, argv=0x403d46d6)
    at ../../gcc/gcc/gcc.c:6765
(gdb) disass 0x403cb2a8 0x403cb2c8
Dump of assembler code from 0x403cb2a8 to 0x403cb2c8:
0x403cb2a8:     copy r26,ret0
0x403cb2ac:     b,l 0x403cb200,r0
0x403cb2b0:     copy ret0,r26
0x403cb2b4:     ldb 0(r26),ret0
0x403cb2b8:     ldb 0(r25),r20
0x403cb2bc:     ldo 1(r26),r26
0x403cb2c0:     cmpib,= 0,ret0,0x403cb2d8
0x403cb2c4:     ldo 1(r25),r25
End of assembler dump.
(gdb) p $r25
$8 = 1

The segv was at 0x403cb2b8.  Think the function starts at 0x403cb0dc.
This is debian libc6 2.7-4.

I looked at code and call in frame 6 as it seemed a little suspicious
that gdb printed 1 for argv.  However, the assembly code and the argv
data all seemed ok.

Any thoughts on how r25 might have becom corrupted?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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On Dec 23, 2007 12:34 PM, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> I had a gcc testsuite failure today on my c3k (2.6.22.14) that
> suggests there is a random issue with execv.  The test didn't
> fail when I reran the test.  xgcc was trying to execv collect2.

All of these types of failures in general relate to kernel stability,
memory management, and process management. We see this
sort of thing at CodeSourcery on a daily basis when using shoddy
kernels.

You might ask, "What does CodeSourcery do?", we mark the
kernel "bad", and if a test fails with a SIGSEGV we usually
rerun the test (we have magical DejaGNU scripts) once or twice
to see if it succeeds. In the case of boards that boot quickly
we actually reset the board and rerun the test (all automatic).

> This is the backtrace from the core file:
>
> (gdb) bt
> #0  0x403cb2b8 in ?? () from /lib/ld.so.1
> #1  0x403c2670 in ?? () from /lib/ld.so.1
> #2  0x403bd368 in ?? () from /lib/ld.so.1
> #3  0x403bd698 in ?? () from /lib/ld.so.1
> #4  0x403c0ee4 in ?? () from /lib/ld.so.1
> #5  0x403c7cc8 in ?? () from /lib/ld.so.1
> #6  0x00027a3c in pex_unix_exec_child (obj=0x42f84, flags=275048,
>     executable=0x4afe8 "", argv=0x1, env=0xfb255c48, in=1083198820, out=0,
>     errdes=-81437888, toclose=580, errmsg=0xc, err=0x42784)
>     at ../../gcc/libiberty/pex-unix.c:433
> #7  0x000272f8 in pex_run_in_environment (obj=0x4ecd0, flags=1,
>     executable=0x4ec80 "/home/dave/gnu/gcc-4.3/objdir/gcc/collect2",
>     argv=0x4bd40, env=0x42f84, orig_outname=0x0,
>     errname=0x2b000 ' ' <repeats 19 times>, "Time the execution of each subprocess\n", err=0x6) at ../../gcc/libiberty/pex-common.c:342
> #8  0x000274d0 in pex_run (obj=0x10b07, flags=1, executable=0xfb255f08 "",
>     argv=0x10a74, orig_outname=0x42f84 "", errname=0xfb255a00 "@=$h",
>     err=0x4bd40) at ../../gcc/libiberty/pex-common.c:372
> #9  0x00014be8 in execute () at ../../gcc/gcc/gcc.c:2982
> #10 0x0001dc08 in main (argc=1077757630, argv=0x403d46d6)
>     at ../../gcc/gcc/gcc.c:6765
> (gdb) disass 0x403cb2a8 0x403cb2c8
> Dump of assembler code from 0x403cb2a8 to 0x403cb2c8:
> 0x403cb2a8:     copy r26,ret0
> 0x403cb2ac:     b,l 0x403cb200,r0
> 0x403cb2b0:     copy ret0,r26
> 0x403cb2b4:     ldb 0(r26),ret0
> 0x403cb2b8:     ldb 0(r25),r20
> 0x403cb2bc:     ldo 1(r26),r26
> 0x403cb2c0:     cmpib,= 0,ret0,0x403cb2d8
> 0x403cb2c4:     ldo 1(r25),r25
> End of assembler dump.
> (gdb) p $r25
> $8 = 1
>
> The segv was at 0x403cb2b8.  Think the function starts at 0x403cb0dc.
> This is debian libc6 2.7-4.
>
> I looked at code and call in frame 6 as it seemed a little suspicious
> that gdb printed 1 for argv.  However, the assembly code and the argv
> data all seemed ok.
>
> Any thoughts on how r25 might have becom corrupted?

Not a clue. How did you capture the failure in the debugger?

Cheers,
Carlos.
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From - Thu Nov 08 21:01:53 2018
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Subject: Re: segv doing execv
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> On Dec 23, 2007 12:34 PM, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > I had a gcc testsuite failure today on my c3k (2.6.22.14) that
> > suggests there is a random issue with execv.  The test didn't
> > fail when I reran the test.  xgcc was trying to execv collect2.
> 
> All of these types of failures in general relate to kernel stability,
> memory management, and process management. We see this
> sort of thing at CodeSourcery on a daily basis when using shoddy
> kernels.

;(

> You might ask, "What does CodeSourcery do?", we mark the
> kernel "bad", and if a test fails with a SIGSEGV we usually
> rerun the test (we have magical DejaGNU scripts) once or twice
> to see if it succeeds. In the case of boards that boot quickly
> we actually reset the board and rerun the test (all automatic).

That's cool but how do does CodeSourcery actually fix the "kernel"?

> > This is the backtrace from the core file:
> >
> > (gdb) bt
> > #0  0x403cb2b8 in ?? () from /lib/ld.so.1
> > #1  0x403c2670 in ?? () from /lib/ld.so.1
> > #2  0x403bd368 in ?? () from /lib/ld.so.1
> > #3  0x403bd698 in ?? () from /lib/ld.so.1
> > #4  0x403c0ee4 in ?? () from /lib/ld.so.1
> > #5  0x403c7cc8 in ?? () from /lib/ld.so.1
> > #6  0x00027a3c in pex_unix_exec_child (obj=0x42f84, flags=275048,
> >     executable=0x4afe8 "", argv=0x1, env=0xfb255c48, in=1083198820, out=0,
> >     errdes=-81437888, toclose=580, errmsg=0xc, err=0x42784)
> >     at ../../gcc/libiberty/pex-unix.c:433
> > #7  0x000272f8 in pex_run_in_environment (obj=0x4ecd0, flags=1,
> >     executable=0x4ec80 "/home/dave/gnu/gcc-4.3/objdir/gcc/collect2",
> >     argv=0x4bd40, env=0x42f84, orig_outname=0x0,
> >     errname=0x2b000 ' ' <repeats 19 times>, "Time the execution of each subprocess\n", err=0x6) at ../../gcc/libiberty/pex-common.c:342
> > #8  0x000274d0 in pex_run (obj=0x10b07, flags=1, executable=0xfb255f08 "",
> >     argv=0x10a74, orig_outname=0x42f84 "", errname=0xfb255a00 "@=$h",
> >     err=0x4bd40) at ../../gcc/libiberty/pex-common.c:372
> > #9  0x00014be8 in execute () at ../../gcc/gcc/gcc.c:2982
> > #10 0x0001dc08 in main (argc=1077757630, argv=0x403d46d6)
> >     at ../../gcc/gcc/gcc.c:6765
> > (gdb) disass 0x403cb2a8 0x403cb2c8
> > Dump of assembler code from 0x403cb2a8 to 0x403cb2c8:
> > 0x403cb2a8:     copy r26,ret0
> > 0x403cb2ac:     b,l 0x403cb200,r0
> > 0x403cb2b0:     copy ret0,r26
> > 0x403cb2b4:     ldb 0(r26),ret0
> > 0x403cb2b8:     ldb 0(r25),r20
> > 0x403cb2bc:     ldo 1(r26),r26
> > 0x403cb2c0:     cmpib,= 0,ret0,0x403cb2d8
> > 0x403cb2c4:     ldo 1(r25),r25
> > End of assembler dump.
> > (gdb) p $r25
> > $8 = 1
> >
> > The segv was at 0x403cb2b8.  Think the function starts at 0x403cb0dc.
> > This is debian libc6 2.7-4.
> >
> > I looked at code and call in frame 6 as it seemed a little suspicious
> > that gdb printed 1 for argv.  However, the assembly code and the argv
> > data all seemed ok.
> >
> > Any thoughts on how r25 might have becom corrupted?
> 
> Not a clue. How did you capture the failure in the debugger?

With a core dump!  Actually, I was hoping you might recognize the assembler
code and understand what failed ;)

I'm currently trying to use the debug libraries.  It seems gdb won't
load the debug libraries when a failure occurs with non-debug libs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Dec 27, 2007 6:28 PM, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> That's cool but how do does CodeSourcery actually fix the "kernel"?

By writing reproducible test cases and giving them to the the Linux kernel
vendor, who in turn gets their kernel engineers to fix the bug :-)

> > Not a clue. How did you capture the failure in the debugger?
>
> With a core dump!  Actually, I was hoping you might recognize the assembler
> code and understand what failed ;)

I don't recognize the assembler dump as any particularly important
sequence.

> I'm currently trying to use the debug libraries.  It seems gdb won't
> load the debug libraries when a failure occurs with non-debug libs.

Do you actually mean "stripped libraries" vs. "unstripped libraries?"

Cheers,
Carlos.
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From: Grant Grundler <grundler@parisc-linux.org>
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On Sat, Dec 22, 2007 at 01:45:45PM +0000, rubisher wrote:
> Hello *,
>
> This seems to be missed a while ago ;-)
>
> --- drivers-parisc-iommu-helpers.h-git20071218	2007-12-21 
> 19:02:38.000000000 +0000
> +++ drivers-parisc-iommu-helpers.h-git20071218.new	2007-12-22 
> 13:39:04.000000000 +0000
> @@ -29,7 +29,7 @@
>  		long size;
>
>  		DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
> -			   (unsigned long)sg_dma_address(startsg), cnt,
> +			   (unsigned long)sg_dma_address(startsg), size,

Sorry - but this is wrong. "size" isn't initialized until later.
"cnt" was the thing I needed/wanted dumped.

cheers,
grant

>  			   sg_virt_addr(startsg), startsg->length
>  		);
> === <> ===
>
> Cheers,
> 	r.
> -
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From - Thu Nov 08 21:01:53 2018
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Subject: Re: iommu_fill_pdir() and its /* Horrible hack. ... */ reading.
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Hi,

On Wed, Dec 26, 2007 at 05:31:51PM +0000, rubisher wrote:
> Hello Grant,
>
> I suspecting a possible issue with this hack in your iommu_fill_pdir():
>
> you initialized dma_sg with the adress of startsg (/* pointer to current 
> DMA */)
> then before the loop you dma_sg--;

Yes. The comment before that line explains why it does that.

...
> Now in the while (nents-- > 0), suppose the test "if 
> (sg_dma_address(startsg) & PIDE_FLAG) {" failed,

Do you have any evidence this test has failed when dma_sg is pointing
at garbage?

While possible, that would be a bug in iommu_coalesce_chunks()
for not setting PIDE_FLAG.

> so later in the loop the "sg_dma_len(dma_sg) += startsg->length" (which is 
> actually "dma_sg->iova_length += startsg->length" ) imo could corrupt 
> something?

Yes, that would be the result. Can you try a bug catcher to prove
that's something is actually getting corrupted?

Add something like the following around line 65 (before "sg_dma_len(dma_sg)"
is assigned):
	BUG_ON(dma_sg < startsg);


On the same note, line 44 is clearly wrong:
 41                 if (sg_dma_address(startsg) & PIDE_FLAG) {
 42                         u32 pide = sg_dma_address(startsg) & ~PIDE_FLAG;
 43 
 44                         BUG_ON(pdirp && (dma_len != sg_dma_len(dma_sg)));
 45 
 46                         dma_sg++;

The BUG_ON at line 44 might fail when it shouldn't (and vice versa).
My preference is to remove it or put "#ifdef DEBUG_IOMMU" around
that line of code (not literally, but effectively).


In general, I didn't like the "pre-decrement" but it seems to work and
makes the code a bit more efficient. Efficiency is extremely important
for this code since it gets called so often. Small changes can have
easily measured impact.

> That said I tried to re-use the first implementation of jejb (what was in 
> ccio-dma.c before this patch 
> <http://cvs.parisc-linux.org/linux-2.6/drivers/parisc/ccio-dma.c?r1=1.12&r2=1.13> 
> but that doesn't seems to fix the ccio-dma issue at all: I can still read 
> those kind of message at the console while doing such copy
> [snip]
> scsi1: (4:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
> scsi1: Bus Reset detected, executing command 10953600, slot 109708a4, dsp 
> 001301e8[01e8] 

I'm thinking we really need SCSI bus traces to figure out if the SCSI driver
is doing the right thing and if not, exactly what is it doing.

If it is a CCIO bug, my guess is it's more likely to be problems with
setting magic bits.  We really need the ERS to review register settings.

..
> (the scsi1 is the lasi scsi hba as sources and the target being the disks 
> on ncr53c720 hba)
>
> or experimenting fs issues on this target disks?

I doubt this is a file system problem.

> That said ok I will wait either U2/Uturn ers public doc or all volonteers 
> feedback.

I'm skeptical for the former and hopeful for the latter.
There is a chance Linux Foundation could ask HP for those docs under NDA.
But you need to sign up with Linux Foundataion as a developer and
then request HP for those docs.

cheers,
grant
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From - Thu Nov 08 21:01:53 2018
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Grant Grundler wrote:
> Hi,
> 
> On Wed, Dec 26, 2007 at 05:31:51PM +0000, rubisher wrote:
>> Hello Grant,
>>
>> I suspecting a possible issue with this hack in your iommu_fill_pdir():
>>
>> you initialized dma_sg with the adress of startsg (/* pointer to current 
>> DMA */)
>> then before the loop you dma_sg--;
> 
> Yes. The comment before that line explains why it does that.
> 
> ...
>> Now in the while (nents-- > 0), suppose the test "if 
>> (sg_dma_address(startsg) & PIDE_FLAG) {" failed,
> 
> Do you have any evidence this test has failed when dma_sg is pointing
> at garbage?
> 
> While possible, that would be a bug in iommu_coalesce_chunks()
> for not setting PIDE_FLAG.
> 
>> so later in the loop the "sg_dma_len(dma_sg) += startsg->length" (which is 
>> actually "dma_sg->iova_length += startsg->length" ) imo could corrupt 
>> something?
> 
> Yes, that would be the result. Can you try a bug catcher to prove
> that's something is actually getting corrupted?
> 
> Add something like the following around line 65 (before "sg_dma_len(dma_sg)"
> is assigned):
> 	BUG_ON(dma_sg < startsg);
> 
> 
> On the same note, line 44 is clearly wrong:
>  41                 if (sg_dma_address(startsg) & PIDE_FLAG) {
>  42                         u32 pide = sg_dma_address(startsg) & ~PIDE_FLAG;
>  43 
>  44                         BUG_ON(pdirp && (dma_len != sg_dma_len(dma_sg)));
>  45 
>  46                         dma_sg++;
> 
> The BUG_ON at line 44 might fail when it shouldn't (and vice versa).
> My preference is to remove it or put "#ifdef DEBUG_IOMMU" around
> that line of code (not literally, but effectively).
> 
Good idea:
here is the patch I used:
Index: linux-current/drivers/parisc/iommu-helpers.h
===================================================================
--- linux-current.orig/drivers/parisc/iommu-helpers.h   2007-12-28 12:59:35.000000000 +0000
+++ linux-current/drivers/parisc/iommu-helpers.h        2007-12-28 12:45:29.000000000 +0000
@@ -22,14 +22,14 @@
         /* Horrible hack.  For efficiency's sake, dma_sg starts one
          * entry below the true start (it is immediately incremented
          * in the loop) */
-        dma_sg--;
+       dma_sg--;

         while (nents-- > 0) {
                 unsigned long vaddr;
                 long size;

                 DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
-                          (unsigned long)sg_dma_address(startsg), cnt,
+                          (unsigned long)sg_dma_address(startsg), sg_dma_len(startsg),
                            sg_virt_addr(startsg), startsg->length
                 );

@@ -41,7 +41,9 @@
                 if (sg_dma_address(startsg) & PIDE_FLAG) {
                         u32 pide = sg_dma_address(startsg) & ~PIDE_FLAG;

+#ifdef DEBUG_IOMMU
                         BUG_ON(pdirp && (dma_len != sg_dma_len(dma_sg)));
+#endif

                         dma_sg++;

@@ -62,6 +64,7 @@
                         prefetchw(pdirp);
                 }

+               BUG_ON(dma_sg < startsg);
                 BUG_ON(pdirp == NULL);

                 vaddr = sg_virt_addr(startsg);
=== <> ===

And :<(
------------[ cut here ]------------ 

kernel BUG at /CAD/linux-2.6.23-pa-git-20071022/drivers/parisc/iommu-helpers.h:67! 

 

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI 

PSW: 00000000000001001111011100001110 Not tainted 

r00-03  0004f70e fff0bdc0 10212064 107dd000 

r04-07  00000000 10880d48 00000001 00000006 

r08-11  108fc8a0 10440e10 00000001 108fc8a0 

r12-15  10000000 00008000 00000005 0000000e 

r16-19  1084c800 1081880c 10387964 007dc005 

r20-23  10491000 00001000 00000000 00000005 

r24-27  107dc000 07dc0000 10880d40 103dee10 

r28-31  00000000 00000000 10819080 108fc8b4 

sr00-03  00000000 00000000 00000000 00000000 

sr04-07  00000000 00000000 00000000 00000000 

 

IASQ: 00000000 00000000 IAOQ: 102120a8 102120ac 

  IIR: 03ffe01f    ISR: 00000000  IOR: 108fc8b4 

  CPU:        0   CR30: 10818000 CR31: f01043c0 

  ORIG_R28: aac6ca23 

  IAOQ[0]: ccio_map_sg+0x22c/0x3a8 

  IAOQ[1]: ccio_map_sg+0x230/0x3a8 

  RP(r2): ccio_map_sg+0x1e8/0x3a8 

Backtrace: 

  [<10107164>] die_if_kernel+0xa0/0x1b0 

  [<10107898>] handle_interruption+0x624/0x6b4 

  [<1010b078>] intr_check_sig+0x0/0x34 

  [<10121574>] enqueue_task+0x28/0x44 

  [<102120ac>] ccio_map_sg+0x230/0x3a8 

  [<10171428>] do_filp_open+0x54/0x68 

  [<10211fd8>] ccio_map_sg+0x15c/0x3a8 

  [<10266d2c>] scsi_dma_map+0x48/0x58 

  [<1027597c>] NCR_700_queuecommand+0x38c/0x504 

  [<10260368>] scsi_dispatch_cmd+0x118/0x288 

  [<1026664c>] scsi_request_fn+0x184/0x2e0 

  [<101fb440>] __generic_unplug_device+0x38/0x44 

  [<101fb7fc>] generic_unplug_device+0x14/0x24 

  [<101f841c>] blk_backing_dev_unplug+0x1c/0x28 

  [<10198b18>] sync_buffer+0x38/0x50 

  [<1019ab20>] __bread+0x90/0xec 

 

Kernel panic - not syncing: Attempted to kill init!

but there must be something wrong in this test because same change applied to iommu-helper without 'horrible hack' panic at 
the same place:
------------[ cut here ]------------
kernel BUG at /CAD/linux-2.6.23-pa-git-20071022/drivers/parisc/iommu-helpers.h:64!

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111011100001110 Not tainted
r00-03  0004f70e fff0bdc0 10212068 107dd000
r04-07  00000000 108fc8b4 108fc8a0 10880d48
r08-11  00000006 10440e10 00000001 00000001
r12-15  1084c800 108fc8a0 10000000 00008000
r16-19  00000005 0000000e 10387964 007dc005
r20-23  10491000 00000000 00000000 00000005
r24-27  107dc000 07dc0000 10880d40 103dee10
r28-31  000007dc 00002ee0 10819080 00000000
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 102120b0 102120b4
  IIR: 03ffe01f    ISR: 00000000  IOR: 00000000
  CPU:        0   CR30: 10818000 CR31: f01043c0
  ORIG_R28: aac6ca23
  IAOQ[0]: ccio_map_sg+0x234/0x3ac
  IAOQ[1]: ccio_map_sg+0x238/0x3ac
  RP(r2): ccio_map_sg+0x1ec/0x3ac
Backtrace:
  [<10107164>] die_if_kernel+0xa0/0x1b0
  [<10107898>] handle_interruption+0x624/0x6b4
  [<1010b078>] intr_check_sig+0x0/0x34
  [<10121a84>] __wake_up_common+0x7c/0xcc
  [<101713c0>] nameidata_to_filp+0x44/0x58
  [<10171428>] do_filp_open+0x54/0x68
  [<10211fd8>] ccio_map_sg+0x15c/0x3ac
  [<10266d30>] scsi_dma_map+0x48/0x58
  [<10275980>] NCR_700_queuecommand+0x38c/0x504
  [<1026036c>] scsi_dispatch_cmd+0x118/0x288
  [<10266650>] scsi_request_fn+0x184/0x2e0
  [<101fb440>] __generic_unplug_device+0x38/0x44
  [<101fb7fc>] generic_unplug_device+0x14/0x24
  [<101f841c>] blk_backing_dev_unplug+0x1c/0x28
  [<10198b18>] sync_buffer+0x38/0x50
  [<1019ab20>] __bread+0x90/0xec

Kernel panic - not syncing: Attempted to kill init!
Rebooting in 10 seconds..

So we could only guess that the other BUG_ON(pdirp == NULL); do well its job and you have right I have no evidence that 
something is actually corrupted.

> 
> In general, I didn't like the "pre-decrement" but it seems to work and
> makes the code a bit more efficient. Efficiency is extremely important
> for this code since it gets called so often. Small changes can have
> easily measured impact.
> 
Understand, eventhought for my linux learning only I prefer a more robust code
>> That said I tried to re-use the first implementation of jejb (what was in 
>> ccio-dma.c before this patch 
>> <http://cvs.parisc-linux.org/linux-2.6/drivers/parisc/ccio-dma.c?r1=1.12&r2=1.13> 
>> but that doesn't seems to fix the ccio-dma issue at all: I can still read 
>> those kind of message at the console while doing such copy
>> [snip]
>> scsi1: (4:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
>> scsi1: Bus Reset detected, executing command 10953600, slot 109708a4, dsp 
>> 001301e8[01e8] 
> 
> I'm thinking we really need SCSI bus traces to figure out if the SCSI driver
> is doing the right thing and if not, exactly what is it doing.
> 
Well, submitted some stress test (the loop of disk read/write with a tar -xf linux-2.6.11.tar) on the same disk but 
connected to a b180 (i.e. using same ncr53c710 driver for the same lasi hba but without ccio-dma driver) didn't showed any 
failures.
(for the ncr53c720 hba, i didn't have any other system to test it without ccio-dma ;<( )

> If it is a CCIO bug, my guess is it's more likely to be problems with
> setting magic bits.  We really need the ERS to review register settings.
> 
> ..
>> (the scsi1 is the lasi scsi hba as sources and the target being the disks 
>> on ncr53c720 hba)
>>
>> or experimenting fs issues on this target disks?
> 
> I doubt this is a file system problem.

No, it's a ext3 which I use on severall other hp model (b180, b2k so without ccio-dma) without any issues

> 
>> That said ok I will wait either U2/Uturn ers public doc or all volonteers 
>> feedback.
> 
> I'm skeptical for the former and hopeful for the latter.
> There is a chance Linux Foundation could ask HP for those docs under NDA.
> But you need to sign up with Linux Foundataion as a developer and
> then request HP for those docs.
> 
Well I am not actualy a developer, just an engineer (not in computer science) trying to help but may be is it enough to sign 
up with Linux Foundation?
If yes, can you send me a link to request papers?

tx again,
	r.

PS: This c110 boxe was more reliable (I mean I could easily update system frequently, build kernel, ...) when it was equiped 
with 512M RAM; it became not any more usable when I had to decrease this ram size to original one (i.e. 64M)?

> cheers,
> grant
> 
> 

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From - Thu Nov 08 21:01:53 2018
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From: rubisher <rubisher@scarlet.be>
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Subject: Re: iommu-helpers.h patch
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To: Grant Grundler <grundler@parisc-linux.org>
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Grant Grundler wrote:
> On Sat, Dec 22, 2007 at 01:45:45PM +0000, rubisher wrote:
>> Hello *,
>>
>> This seems to be missed a while ago ;-)
>>
>> --- drivers-parisc-iommu-helpers.h-git20071218	2007-12-21 
>> 19:02:38.000000000 +0000
>> +++ drivers-parisc-iommu-helpers.h-git20071218.new	2007-12-22 
>> 13:39:04.000000000 +0000
>> @@ -29,7 +29,7 @@
>>  		long size;
>>
>>  		DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
>> -			   (unsigned long)sg_dma_address(startsg), cnt,
>> +			   (unsigned long)sg_dma_address(startsg), size,
> 
> Sorry - but this is wrong. "size" isn't initialized until later.
Agree with you: size is initialized later.

Anyway cnt variable was gone:
# grep cnt drivers/parisc/iommu-helpers.h
                            (unsigned long)sg_dma_address(startsg), cnt,

and imo it was with this patch:
<http://cvs.parisc-linux.org/linux-2.6/drivers/parisc/ccio-dma.c?r1=1.11&r2=1.12&makepatch=1&diff_format=u>

the interesting hunk's part was:
-		int cnt = sg_dma_len(startsg);
-		sg_dma_len(startsg) = 0;
+		unsigned long vaddr;
+		long size;

  		DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
  			   (unsigned long)sg_dma_address(startsg), cnt,
  			   sg_virt_addr(startsg), startsg->length
  		);

+

(and make a kernel with DEBUG_CCIO_RUN_SG failed with an error at this place, so we need to patch ;-)

> "cnt" was the thing I needed/wanted dumped.
> 
So may be something like:

                 DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
-                          (unsigned long)sg_dma_address(startsg), cnt,
+                          (unsigned long)sg_dma_address(startsg), sg_dma_len(startsg),
                            sg_virt_addr(startsg), startsg->length
                 );

Tx,
	r.

> cheers,
> grant
> 
>>  			   sg_virt_addr(startsg), startsg->length
>>  		);
>> === <> ===
>>
>> Cheers,
>> 	r.
>> -
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> 

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From - Thu Nov 08 21:01:54 2018
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Subject: Re: segv doing execv
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> I don't recognize the assembler dump as any particularly important
> sequence.

Ok, then there's no hope.

> > I'm currently trying to use the debug libraries.  It seems gdb won't
> > load the debug libraries when a failure occurs with non-debug libs.
> 
> Do you actually mean "stripped libraries" vs. "unstripped libraries?"

Yes, the ones with debug info (i.e., those in /usr/lib/debug).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hello all,

It seems that current gcc suffers from a branching bug.
Please see http://bugs.gentoo.org/show_bug.cgi?id=203543 for the full
bug details.

As stated in the bug details, simply compile the attached test case
with different optimisation levels and the result will differ.

This seems to be happening for gcc-4.1.2 up to the latest 4.3.

Gentoo's gcc includes the latest cbranch patches found in the debian
one. Let me know if more info is needed.

Regards,
  Guy


-- 
Guy Martin
Gentoo Linux - HPPA port lead

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int ret1() { return -1; }

int main(int argc, char **argv) {
        int i = ret1();
        if(i >= -10000) { i = -i; } // should execute
        return i+10;
}

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> It seems that current gcc suffers from a branching bug.
> Please see http://bugs.gentoo.org/show_bug.cgi?id=203543 for the full
> bug details.

Without looking, I would guess this another reorg bug due to
delay slot optimizations.  There was one fixed on head a couple
of weeks ago.

Would you please file a GCC PR and add me to CC list?

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> 
> Would you please file a GCC PR and add me to CC list?
> 


Hi Dave,

Here you go :

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34627

I've added you in the CC list already.

Cheers,
  Guy

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> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34627

Thanks.  It helps when others file bug reports.  If I file all the reports,
other GCC developers don't pay as much attention.  It also shows the port
is being used.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "rubisher" <rubisher@scarlet.be>
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Subject: What's up of this if (likely()) bracing?
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Hello *,

I am not sure to have perfectly understand all subtle details of likely() &
unlikely() macros but I think there's some brace at the bad place in following
chunk:
--- arch/parisc/lib/memcpy.c.Orig	2007-10-18 15:27:30.000000000 +0000
+++ arch/parisc/lib/memcpy.c	2008-01-03 10:17:52.000000000 +0000
@@ -299,7 +299,7 @@
 
 	/* Check alignment */
 	t1 = (src ^ dst);
-	if (unlikely(t1 & (sizeof(double)-1)))
+	if (unlikely(t1 & (sizeof(double) - 1)))
 		goto unaligned_copy;
 
 	/* src and dst have same alignment. */
@@ -405,7 +405,7 @@
 
 unaligned_copy:
 	/* possibly we are aligned on a word, but not on a double... */
-	if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
+	if (likely((t1 & (sizeof(unsigned int) - 1)) == 0)) {
 		t2 = src & (sizeof(unsigned int) - 1);
 
 		if (unlikely(t2 != 0)) {
=== <> ===
First hunk is just to add some whitespace?

Otoh for the second hunk, my reading of the original stuff was that:
> likely(t1 & (sizeof(unsigned int)-1)) 
i.e. likely's macro embraced only "t1 & (sizeof(unsigned int)-1)" in place of
"(t1 & (sizeof(unsigned int)-1)) == 0".

What's your opinion?

Tia,
    r.
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: What's up of this if (likely()) bracing?
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On Thu, Jan 03, 2008 at 12:37:12PM +0100, rubisher wrote:
> Hello *,
> 
> I am not sure to have perfectly understand all subtle details of likely() &
> unlikely() macros but I think there's some brace at the bad place in following
> chunk:
> --- arch/parisc/lib/memcpy.c.Orig	2007-10-18 15:27:30.000000000 +0000
> +++ arch/parisc/lib/memcpy.c	2008-01-03 10:17:52.000000000 +0000
> @@ -299,7 +299,7 @@
>  
>  	/* Check alignment */
>  	t1 = (src ^ dst);
> -	if (unlikely(t1 & (sizeof(double)-1)))
> +	if (unlikely(t1 & (sizeof(double) - 1)))

Please submit separate patches for the white space clean up.

>  		goto unaligned_copy;
>  
>  	/* src and dst have same alignment. */
> @@ -405,7 +405,7 @@
>  
>  unaligned_copy:
>  	/* possibly we are aligned on a word, but not on a double... */
> -	if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
> +	if (likely((t1 & (sizeof(unsigned int) - 1)) == 0)) {
>  		t2 = src & (sizeof(unsigned int) - 1);
>  
>  		if (unlikely(t2 != 0)) {
> === <> ===
> First hunk is just to add some whitespace?
> 
> Otoh for the second hunk, my reading of the original stuff was that:
> > likely(t1 & (sizeof(unsigned int)-1)) 
> i.e. likely's macro embraced only "t1 & (sizeof(unsigned int)-1)" in place of
> "(t1 & (sizeof(unsigned int)-1)) == 0".
> 
> What's your opinion?

I think you are right. normally likely() and unlikely() are intended
to be used with boolean expressions and that's obviously not the case.

Please resubmit this change separately and add "signed-off-by" lines
so kyle can include this in the next round of parisc patches.

cheers,
grant


> 
> Tia,
>     r.
> ---
> Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
> http://www.scarlet.be/
> 
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Grant Grundler wrote:
> On Thu, Jan 03, 2008 at 12:37:12PM +0100, rubisher wrote:
>> Hello *,
>>
>> I am not sure to have perfectly understand all subtle details of likely() &
>> unlikely() macros but I think there's some brace at the bad place in following
>> chunk:
>> --- arch/parisc/lib/memcpy.c.Orig	2007-10-18 15:27:30.000000000 +0000
>> +++ arch/parisc/lib/memcpy.c	2008-01-03 10:17:52.000000000 +0000
>> @@ -299,7 +299,7 @@
>>  
>>  	/* Check alignment */
>>  	t1 = (src ^ dst);
>> -	if (unlikely(t1 & (sizeof(double)-1)))
>> +	if (unlikely(t1 & (sizeof(double) - 1)))
> 
> Please submit separate patches for the white space clean up.
> 
>>  		goto unaligned_copy;
>>  
>>  	/* src and dst have same alignment. */
>> @@ -405,7 +405,7 @@
>>  
>>  unaligned_copy:
>>  	/* possibly we are aligned on a word, but not on a double... */
>> -	if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
>> +	if (likely((t1 & (sizeof(unsigned int) - 1)) == 0)) {
>>  		t2 = src & (sizeof(unsigned int) - 1);
>>  
>>  		if (unlikely(t2 != 0)) {
>> === <> ===
>> First hunk is just to add some whitespace?
>>
>> Otoh for the second hunk, my reading of the original stuff was that:
>>> likely(t1 & (sizeof(unsigned int)-1)) 
>> i.e. likely's macro embraced only "t1 & (sizeof(unsigned int)-1)" in place of
>> "(t1 & (sizeof(unsigned int)-1)) == 0".
>>
>> What's your opinion?
> 
> I think you are right. normally likely() and unlikely() are intended
> to be used with boolean expressions and that's obviously not the case.
> 
> Please resubmit this change separately and add "signed-off-by" lines
> so kyle can include this in the next round of parisc patches.
> 
> cheers,
> grant
> 
> 
Grant,

Ok here there are:
a white space cleanup/beautify patch:
Signed-off-by: Joel Soete <soete dot joel at scarlet dot be>
Index: linux-current/arch/parisc/lib/memcpy.c
===================================================================
--- linux-current.orig/arch/parisc/lib/memcpy.c	2008-01-05 13:37:04.000000000 +0000
+++ linux-current/arch/parisc/lib/memcpy.c	2008-01-05 13:55:21.000000000 +0000
@@ -21,28 +21,28 @@
   *    Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc.
   *
   * Several strategies are tried to try to get the best performance for various
- * conditions. In the optimal case, we copy 64-bytes in an unrolled loop using
+ * conditions. In the optimal case, we copy 64-bytes in an unrolled loop using
   * fp regs. This is followed by loops that copy 32- or 16-bytes at a time using
- * general registers.  Unaligned copies are handled either by aligning the
- * destination and then using shift-and-write method, or in a few cases by
+ * general registers.  Unaligned copies are handled either by aligning the
+ * destination and then using shift-and-write method, or in a few cases by
   * falling back to a byte-at-a-time copy.
   *
   * I chose to implement this in C because it is easier to maintain and debug,
   * and in my experiments it appears that the C code generated by gcc (3.3/3.4
- * at the time of writing) is fairly optimal. Unfortunately some of the
+ * at the time of writing) is fairly optimal. Unfortunately some of the
   * semantics of the copy routine (exception handling) is difficult to express
   * in C, so we have to play some tricks to get it to work.
   *
   * All the loads and stores are done via explicit asm() code in order to use
- * the right space registers.
- *
- * Testing with various alignments and buffer sizes shows that this code is
+ * the right space registers.
+ *
+ * Testing with various alignments and buffer sizes shows that this code is
   * often >10x faster than a simple byte-at-a-time copy, even for strangely
   * aligned operands. It is interesting to note that the glibc version
- * of memcpy (written in C) is actually quite fast already. This routine is
- * able to beat it by 30-40% for aligned copies because of the loop unrolling,
- * but in some cases the glibc version is still slightly faster. This lends
- * more credibility that gcc can generate very good code as long as we are
+ * of memcpy (written in C) is actually quite fast already. This routine is
+ * able to beat it by 30-40% for aligned copies because of the loop unrolling,
+ * but in some cases the glibc version is still slightly faster. This lends
+ * more credibility that gcc can generate very good code as long as we are
   * careful.
   *
   * TODO:
@@ -154,7 +154,7 @@
  #endif

  /* Copy from a not-aligned src to an aligned dst, using shifts. Handles 4 words
- * per loop.  This code is derived from glibc.
+ * per loop.  This code is derived from glibc.
   */
  static inline unsigned long copy_dstaligned(unsigned long dst, unsigned long src, unsigned long len, unsigned long o_dst, 
unsigned long o_src, unsigned long o_len)
  {
@@ -299,7 +299,7 @@

  	/* Check alignment */
  	t1 = (src ^ dst);
-	if (unlikely(t1 & (sizeof(double)-1)))
+	if (unlikely(t1 & (sizeof(double) - 1)))
  		goto unaligned_copy;

  	/* src and dst have same alignment. */
@@ -322,7 +322,7 @@

  #if 0
  	/* Copy 8 doubles at a time */
-	while (len >= 8*sizeof(double)) {
+	while (len >= 8 * sizeof(double)) {
  		register double r1, r2, r3, r4, r5, r6, r7, r8;
  		/* prefetch_src((char *)pds + L1_CACHE_BYTES); */
  		flddma(s_space, pds, r1, pmc_load_exc);
@@ -346,7 +346,7 @@
  		fstdma(d_space, r6, pdd, pmc_store_exc);
  		fstdma(d_space, r7, pdd, pmc_store_exc);
  		fstdma(d_space, r8, pdd, pmc_store_exc);
-		len -= 8*sizeof(double);
+		len -= 8 * sizeof(double);
  	}
  #endif

@@ -354,7 +354,7 @@
  	pwd = (unsigned int *)pdd;

  word_copy:
-	while (len >= 8*sizeof(unsigned int)) {
+	while (len >= 8 * sizeof(unsigned int)) {
  		register unsigned int r1,r2,r3,r4,r5,r6,r7,r8;
  		/* prefetch_src((char *)pws + L1_CACHE_BYTES); */
  		ldwma(s_space, pws, r1, pmc_load_exc);
@@ -374,7 +374,7 @@
  		stwma(d_space, r6, pwd, pmc_store_exc);
  		stwma(d_space, r7, pwd, pmc_store_exc);
  		stwma(d_space, r8, pwd, pmc_store_exc);
-		len -= 8*sizeof(unsigned int);
+		len -= 8 * sizeof(unsigned int);
  	}

  	while (len >= 4*sizeof(unsigned int)) {
@@ -387,7 +387,7 @@
  		stwma(d_space, r2, pwd, pmc_store_exc);
  		stwma(d_space, r3, pwd, pmc_store_exc);
  		stwma(d_space, r4, pwd, pmc_store_exc);
-		len -= 4*sizeof(unsigned int);
+		len -= 4 * sizeof(unsigned int);
  	}

  	pcs = (unsigned char *)pws;
@@ -438,7 +438,7 @@
  		src = (unsigned long)pcs;
  	}

-	ret = copy_dstaligned(dst, src, len / sizeof(unsigned int),
+	ret = copy_dstaligned(dst, src, len / sizeof(unsigned int),
  		o_dst, o_src, o_len);
  	if (ret)
  		return ret;
=== <> ===


and
a fixe of likely's macro usage:
Signed-off-by: Joel Soete <soete dot joel at scarlet dot be>
Index: linux-current/arch/parisc/lib/memcpy.c
===================================================================
--- linux-current.orig/arch/parisc/lib/memcpy.c	2008-01-05 13:57:26.000000000 +0000
+++ linux-current/arch/parisc/lib/memcpy.c	2008-01-05 13:58:01.000000000 +0000
@@ -405,7 +405,7 @@

  unaligned_copy:
  	/* possibly we are aligned on a word, but not on a double... */
-	if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
+	if (likely((t1 & (sizeof(unsigned int) - 1)) == 0)) {
  		t2 = src & (sizeof(unsigned int) - 1);

  		if (unlikely(t2 != 0)) {
=== <> ===

Tx again,
	r.


ps: 1/ I also attached patches' file as compressed format
     2/ I will also ask fsf to update may 'Discalimer request' to change my email address and extend it to linux tree :<)


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--------------070309010903020201020400--
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From - Thu Nov 08 21:01:54 2018
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From: rubisher <rubisher@scarlet.be>
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Subject: ccio-dma/iommu-helper in 2.6.24-rc4
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Hello Kyle,

While building new 2.6.24-rc4 (from your parisc-2.6.git tree) I encount=
ered the following issue:

   gcc -Wp,-MD,drivers/parisc/.ccio-dma.o.d  -nostdinc -isystem /usr/li=
b/gcc/hppa-linux-gnu/4.2.3/include -D__KERNEL__=20
-Iinclude -Iinclude2 -I/CAD/linux-2.6.24-rc4-pa-git-20071206-trace/incl=
ude -include include/linux/autoconf.h=20
-I/CAD/linux-2.6.24-rc4-pa-git-20071206-trace/drivers/parisc -Idrivers/=
parisc -Wall -Wundef -Wstrict-prototypes=20
-Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-functi=
on-declaration -O2 -pipe -mno-space-regs=20
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=3D1.1=
 -mschedule=3D7200 -fomit-frame-pointer=20
-fno-stack-protector -Wdeclaration-after-statement -Wno-pointer-sign  -=
D"KBUILD_STR(s)=3D#s"=20
-D"KBUILD_BASENAME=3DKBUILD_STR(ccio_dma)"  -D"KBUILD_MODNAME=3DKBUILD_=
STR(ccio_dma)" -c -o drivers/parisc/ccio-dma.o=20
/CAD/linux-2.6.24-rc4-pa-git-20071206-trace/drivers/parisc/ccio-dma.c
/CAD/linux-2.6.24-rc4-pa-git-20071206-trace/drivers/parisc/ccio-dma.c: =
In function 'ccio_alloc_range':
/CAD/linux-2.6.24-rc4-pa-git-20071206-trace/drivers/parisc/ccio-dma.c:4=
28: warning: unused variable 'res_idx'
In file included from /CAD/linux-2.6.24-rc4-pa-git-20071206-trace/drive=
rs/parisc/ccio-dma.c:982:
/CAD/linux-2.6.24-rc4-pa-git-20071206-trace/drivers/parisc/iommu-helper=
s.h: In function 'iommu_fill_pdir':
/CAD/linux-2.6.24-rc4-pa-git-20071206-trace/drivers/parisc/iommu-helper=
s.h:67: error: implicit declaration of function 'sg_virt'

After a short search, I find a similar pb in <http://www.kernel.org/pub=
/linux/kernel/v2.6/snapshots/patch-2.6.24-rc1-git1.log>:
[snip]
commit 18ccc4194389c6edc78ede76ada3bf753525b11c
Author: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date:   Wed Oct 24 10:16:02 2007 +0200

     AVR32: Fix sg_page breakage

     The latest sg changes introduce the following build errors on AVR3=
2:

     include/asm/dma-mapping.h: In function =91dma_map_sg=92:
     include/asm/dma-mapping.h:220: error: implicit declaration of func=
tion =91sg_page=92
     include/asm/dma-mapping.h:220: error: invalid operands to binary -
     include/asm/dma-mapping.h:221: error: implicit declaration of func=
tion =91sg_virt=92
     include/asm/dma-mapping.h:221: warning: assignment makes pointer f=
rom integer without a cast
     include/asm/dma-mapping.h: In function =91dma_sync_sg_for_device=92=
:
     include/asm/dma-mapping.h:330: warning: passing argument 2 of =91d=
ma_cache_sync=92 makes pointer from integer without a cast

     Fix it by including the correct header file, i.e. linux/scatterlis=
t.h
     instead of asm/scatterlist.h.

     Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
[snip]

and so tied the same fix:
Signed-off-by: Joel Soete <soete dot joel at scarlet dot be>
Index: linux-trace-pa/include/asm-parisc/dma-mapping.h
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
--- linux-trace-pa.orig/include/asm-parisc/dma-mapping.h	2008-01-05 15:=
26:28.000000000 +0000
+++ linux-trace-pa/include/asm-parisc/dma-mapping.h	2008-01-05 15:26:56=
=2E000000000 +0000
@@ -2,8 +2,8 @@
  #define _PARISC_DMA_MAPPING_H

  #include <linux/mm.h>
+#include <linux/scatterlist.h>
  #include <asm/cacheflush.h>
-#include <asm/scatterlist.h>

  /* See Documentation/DMA-mapping.txt */
  struct hppa_dma_ops {
=3D=3D=3D <> =3D=3D=3D

What do you think about?

Tia,
	r.
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On an EXT3 file system, I see the following:

dave@mx3210:~$ touch xyzzy
dave@mx3210:~$ ls --full-time xyzzy
-rw-r--r-- 1 dave dave 0 2008-01-06 15:07:01.000000000 -0500 xyzzy

However, on tmpfs, proc, etc., I see the sub-seconds time.  This is
2.6.22.14 and 2.6.22.15.

The behavior of 32 and 64-bit kernels seems to be the same.

With an old 2.6 x86 kernel (suse), I see sub-second times on a EXT3
file system.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Jan 6, 2008 3:13 PM, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> On an EXT3 file system, I see the following:
>
> dave@mx3210:~$ touch xyzzy
> dave@mx3210:~$ ls --full-time xyzzy
> -rw-r--r-- 1 dave dave 0 2008-01-06 15:07:01.000000000 -0500 xyzzy
>
> However, on tmpfs, proc, etc., I see the sub-seconds time.  This is
> 2.6.22.14 and 2.6.22.15.
>
> The behavior of 32 and 64-bit kernels seems to be the same.
>
> With an old 2.6 x86 kernel (suse), I see sub-second times on a EXT3
> file system.

Can you distill this into a testcase that uses the kernel fstat* syscalls?

That would definitely rule out glibc getting in the way.

c.
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On Mon, Jan 07, 2008 at 12:42:56PM -0500, Carlos O'Donell wrote:
> Can you distill this into a testcase that uses the kernel fstat* syscalls?
> 
> That would definitely rule out glibc getting in the way.

ext3 doesn't store nanoseconds on disc ... unless <blah blah blah>

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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> On Mon, Jan 07, 2008 at 12:42:56PM -0500, Carlos O'Donell wrote:
> > Can you distill this into a testcase that uses the kernel fstat* syscalls?
> > 
> > That would definitely rule out glibc getting in the way.
> 
> ext3 doesn't store nanoseconds on disc ... unless <blah blah blah>

I was told today that 2.6.24 may provide nanoseconds with ext3, else ext4.
The documentation for <blah blah blah> seems lacking.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Fri, Dec 28, 2007 at 03:27:26PM +0000, rubisher wrote:
> Anyway cnt variable was gone:
> # grep cnt drivers/parisc/iommu-helpers.h
>                            (unsigned long)sg_dma_address(startsg), cnt,

oh! that's definitely wrong too then...

> the interesting hunk's part was:
> -		int cnt = sg_dma_len(startsg);
> -		sg_dma_len(startsg) = 0;
> +		unsigned long vaddr;
> +		long size;

Yup...

> (and make a kernel with DEBUG_CCIO_RUN_SG failed with an error at this 
> place, so we need to patch ;-)
>
>> "cnt" was the thing I needed/wanted dumped.
> So may be something like:
>
>                 DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
> -                          (unsigned long)sg_dma_address(startsg), cnt,
> +                          (unsigned long)sg_dma_address(startsg), 
> sg_dma_len(startsg),
>                            sg_virt_addr(startsg), startsg->length
>                 );

Yeah, that would be better I think.

grant
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Hello Dave,

Compiling p-l with gcc-4.2 I see new warning "discards qualifiers from pointer
target type":

gcc -Wp,-MD,drivers/net/.lasi_82596.o.d  -nostdinc -isystem
/usr/lib/gcc/hppa-linux-gnu/4.2.3/include -D__KERNEL__ -Iinclude -Iinc
lude2 -I/SRCTREE/include -include include/linux/autoconf.h
-I/CAD/linux-2.6.24-rc4-pa-git-2007120
6-trace/drivers/net -Idrivers/net -Wall -Wundef -Wstrict-prototypes
-Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit
-function-declaration -O2 -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=1.1 -mschedule=720
0 -fomit-frame-pointer -fno-stack-protector -Wdeclaration-after-statement
-Wno-pointer-sign  -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME
=KBUILD_STR(lasi_82596)"  -D"KBUILD_MODNAME=KBUILD_STR(lasi_82596)" -c -o
drivers/net/lasi_82596.o /CAD/linux-2.6.24-rc4-pa-git-2007
1206-trace/drivers/net/lasi_82596.c
/SRCTREE/drivers/net/lib82596.c: In function 'wait_cmd':
/SRCTREE/drivers/net/lib82596.c:388: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:391: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'wait_istat':
/SRCTREE/drivers/net/lib82596.c:372: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:375: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_cleanup_cmd':
/SRCTREE/drivers/net/lib82596.c:839: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'init_i596_mem':
/SRCTREE/drivers/net/lib82596.c:580: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:581: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:600: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:629: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type  
/SRCTREE/drivers/net/lib82596.c: In function 'i596_reset':
/SRCTREE/drivers/net/lib82596.c:857: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_add_cmd':
/SRCTREE/drivers/net/lib82596.c:898: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_tx_timeout':
/SRCTREE/drivers/net/lib82596.c:963: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_interrupt':
/SRCTREE/drivers/net/lib82596.c:1266: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:1291: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_close':
/SRCTREE/drivers/net/lib82596.c:1322: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type

After more investigation it seems to linked to the fact that mentioned
arguments are 'volatile' in this structure:

struct i596_dma {
        struct i596_scp scp                     __attribute__((aligned(32)));
        volatile struct i596_iscp iscp          __attribute__((aligned(32)));
        volatile struct i596_scb scb            __attribute__((aligned(32)));
        struct sa_cmd sa_cmd                    __attribute__((aligned(32)));
        struct cf_cmd cf_cmd                    __attribute__((aligned(32)));
        struct tdr_cmd tdr_cmd                  __attribute__((aligned(32)));
        struct mc_cmd mc_cmd                    __attribute__((aligned(32)));
        struct i596_rfd rfds[RX_RING_SIZE]      __attribute__((aligned(32)));  
        struct i596_rbd rbds[RX_RING_SIZE]      __attribute__((aligned(32)));
        struct tx_cmd tx_cmds[TX_RING_SIZE]     __attribute__((aligned(32)));
        struct i596_tbd tbds[TX_RING_SIZE]      __attribute__((aligned(32)));
};

I tried this sample foobar:
      1 struct A {
      2         unsigned long a;
      3         unsigned char *b;
      4 };
      5
      6 struct B {
      7         volatile struct A AinB1;
      8         volatile struct A AinB2;
      9 };
     10
     11 void fooA(struct A *pa);
     12
     13 void fooB(struct B *pB)
     14 {
     15         fooA(&(pB->AinB1));
     16         fooA(&(pB->AinB2));
     17 }

which well return warnings:
# gcc-4.2 -c -o ts.o ts.c 
ts.c: In function 'fooB':
ts.c:15: warning: passing argument 1 of 'fooA' discards qualifiers from
pointer target type
ts.c:16: warning: passing argument 1 of 'fooA' discards qualifiers from
pointer target type

Removing a 'volatile' like:
      1 struct A {
      2         unsigned long a;
      3         unsigned char *b;
      4 };
      5
      6 struct B {
      7         volatile struct A AinB1;
      8         struct A AinB2;
      9 };
     10
     11 void fooA(struct A *pa);
     12
     13 void fooB(struct B *pB)
     14 {
     15         fooA(&(pB->AinB1));
     16         fooA(&(pB->AinB2));
     17 }

and it returns
# gcc-4.2 -c -o ts.o ts.c 
ts.c: In function 'fooB':
ts.c:15: warning: passing argument 1 of 'fooA' discards qualifiers from
pointer target type

Well my understanding of 'volatile' is that this prefix prevent gcc of any
optimization/reorganization. Is it correct? if yes why this warning?

Tia for your attention,
    r.




---
Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
http://www.scarlet.be/


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Hello Dave,

Compiling p-l with gcc-4.2 I see new warning "discards qualifiers from pointer
target type":

gcc -Wp,-MD,drivers/net/.lasi_82596.o.d  -nostdinc -isystem
/usr/lib/gcc/hppa-linux-gnu/4.2.3/include -D__KERNEL__ -Iinclude -Iinc
lude2 -I/SRCTREE/include -include include/linux/autoconf.h
-I/CAD/linux-2.6.24-rc4-pa-git-2007120
6-trace/drivers/net -Idrivers/net -Wall -Wundef -Wstrict-prototypes
-Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit
-function-declaration -O2 -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=1.1 -mschedule=720
0 -fomit-frame-pointer -fno-stack-protector -Wdeclaration-after-statement
-Wno-pointer-sign  -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME
=KBUILD_STR(lasi_82596)"  -D"KBUILD_MODNAME=KBUILD_STR(lasi_82596)" -c -o
drivers/net/lasi_82596.o /CAD/linux-2.6.24-rc4-pa-git-2007
1206-trace/drivers/net/lasi_82596.c
/SRCTREE/drivers/net/lib82596.c: In function 'wait_cmd':
/SRCTREE/drivers/net/lib82596.c:388: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:391: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'wait_istat':
/SRCTREE/drivers/net/lib82596.c:372: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:375: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_cleanup_cmd':
/SRCTREE/drivers/net/lib82596.c:839: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'init_i596_mem':
/SRCTREE/drivers/net/lib82596.c:580: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:581: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:600: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:629: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type  
/SRCTREE/drivers/net/lib82596.c: In function 'i596_reset':
/SRCTREE/drivers/net/lib82596.c:857: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_add_cmd':
/SRCTREE/drivers/net/lib82596.c:898: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_tx_timeout':
/SRCTREE/drivers/net/lib82596.c:963: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_interrupt':
/SRCTREE/drivers/net/lib82596.c:1266: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:1291: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_close':
/SRCTREE/drivers/net/lib82596.c:1322: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type

After more investigation it seems to linked to the fact that mentioned
arguments are 'volatile' in this structure:

struct i596_dma {
        struct i596_scp scp                     __attribute__((aligned(32)));
        volatile struct i596_iscp iscp          __attribute__((aligned(32)));
        volatile struct i596_scb scb            __attribute__((aligned(32)));
        struct sa_cmd sa_cmd                    __attribute__((aligned(32)));
        struct cf_cmd cf_cmd                    __attribute__((aligned(32)));
        struct tdr_cmd tdr_cmd                  __attribute__((aligned(32)));
        struct mc_cmd mc_cmd                    __attribute__((aligned(32)));
        struct i596_rfd rfds[RX_RING_SIZE]      __attribute__((aligned(32)));  
        struct i596_rbd rbds[RX_RING_SIZE]      __attribute__((aligned(32)));
        struct tx_cmd tx_cmds[TX_RING_SIZE]     __attribute__((aligned(32)));
        struct i596_tbd tbds[TX_RING_SIZE]      __attribute__((aligned(32)));
};

I tried this sample foobar:
      1 struct A {
      2         unsigned long a;
      3         unsigned char *b;
      4 };
      5
      6 struct B {
      7         volatile struct A AinB1;
      8         volatile struct A AinB2;
      9 };
     10
     11 void fooA(struct A *pa);
     12
     13 void fooB(struct B *pB)
     14 {
     15         fooA(&(pB->AinB1));
     16         fooA(&(pB->AinB2));
     17 }

which well return warnings:
# gcc-4.2 -c -o ts.o ts.c 
ts.c: In function 'fooB':
ts.c:15: warning: passing argument 1 of 'fooA' discards qualifiers from
pointer target type
ts.c:16: warning: passing argument 1 of 'fooA' discards qualifiers from
pointer target type

Removing a 'volatile' like:
      1 struct A {
      2         unsigned long a;
      3         unsigned char *b;
      4 };
      5
      6 struct B {
      7         volatile struct A AinB1;
      8         struct A AinB2;
      9 };
     10
     11 void fooA(struct A *pa);
     12
     13 void fooB(struct B *pB)
     14 {
     15         fooA(&(pB->AinB1));
     16         fooA(&(pB->AinB2));
     17 }

and it returns
# gcc-4.2 -c -o ts.o ts.c 
ts.c: In function 'fooB':
ts.c:15: warning: passing argument 1 of 'fooA' discards qualifiers from
pointer target type

Well my understanding of 'volatile' is that this prefix prevent gcc of any
optimization/reorganization. Is it correct? if yes why this warning?

Tia for your attention,
    r.




---
Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
http://www.scarlet.be/


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From: "rubisher" <rubisher@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Any idea why gcc "discards qualifiers from pointer target type"?
Date: Tue, 15 Jan 2008 11:30:24 +0100
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Hello Dave,

Compiling p-l with gcc-4.2 I see new warning "discards qualifiers from pointer
target type":

gcc -Wp,-MD,drivers/net/.lasi_82596.o.d  -nostdinc -isystem
/usr/lib/gcc/hppa-linux-gnu/4.2.3/include -D__KERNEL__ -Iinclude -Iinc
lude2 -I/SRCTREE/include -include include/linux/autoconf.h
-I/CAD/linux-2.6.24-rc4-pa-git-2007120
6-trace/drivers/net -Idrivers/net -Wall -Wundef -Wstrict-prototypes
-Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit
-function-declaration -O2 -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=1.1 -mschedule=720
0 -fomit-frame-pointer -fno-stack-protector -Wdeclaration-after-statement
-Wno-pointer-sign  -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME
=KBUILD_STR(lasi_82596)"  -D"KBUILD_MODNAME=KBUILD_STR(lasi_82596)" -c -o
drivers/net/lasi_82596.o /CAD/linux-2.6.24-rc4-pa-git-2007
1206-trace/drivers/net/lasi_82596.c
/SRCTREE/drivers/net/lib82596.c: In function 'wait_cmd':
/SRCTREE/drivers/net/lib82596.c:388: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:391: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'wait_istat':
/SRCTREE/drivers/net/lib82596.c:372: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:375: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_cleanup_cmd':
/SRCTREE/drivers/net/lib82596.c:839: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'init_i596_mem':
/SRCTREE/drivers/net/lib82596.c:580: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:581: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:600: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:629: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type  
/SRCTREE/drivers/net/lib82596.c: In function 'i596_reset':
/SRCTREE/drivers/net/lib82596.c:857: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_add_cmd':
/SRCTREE/drivers/net/lib82596.c:898: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_tx_timeout':
/SRCTREE/drivers/net/lib82596.c:963: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_interrupt':
/SRCTREE/drivers/net/lib82596.c:1266: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c:1291: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type
/SRCTREE/drivers/net/lib82596.c: In function 'i596_close':
/SRCTREE/drivers/net/lib82596.c:1322: warning: passing argument 2 of
'dma_cache_sync' discards qualifiers from pointer target type

After more investigation it seems to linked to the fact that mentioned
arguments are 'volatile' in this structure:

struct i596_dma {
        struct i596_scp scp                     __attribute__((aligned(32)));
        volatile struct i596_iscp iscp          __attribute__((aligned(32)));
        volatile struct i596_scb scb            __attribute__((aligned(32)));
        struct sa_cmd sa_cmd                    __attribute__((aligned(32)));
        struct cf_cmd cf_cmd                    __attribute__((aligned(32)));
        struct tdr_cmd tdr_cmd                  __attribute__((aligned(32)));
        struct mc_cmd mc_cmd                    __attribute__((aligned(32)));
        struct i596_rfd rfds[RX_RING_SIZE]      __attribute__((aligned(32)));  
        struct i596_rbd rbds[RX_RING_SIZE]      __attribute__((aligned(32)));
        struct tx_cmd tx_cmds[TX_RING_SIZE]     __attribute__((aligned(32)));
        struct i596_tbd tbds[TX_RING_SIZE]      __attribute__((aligned(32)));
};

I tried this sample foobar:
      1 struct A {
      2         unsigned long a;
      3         unsigned char *b;
      4 };
      5
      6 struct B {
      7         volatile struct A AinB1;
      8         volatile struct A AinB2;
      9 };
     10
     11 void fooA(struct A *pa);
     12
     13 void fooB(struct B *pB)
     14 {
     15         fooA(&(pB->AinB1));
     16         fooA(&(pB->AinB2));
     17 }

which well return warnings:
# gcc-4.2 -c -o ts.o ts.c 
ts.c: In function 'fooB':
ts.c:15: warning: passing argument 1 of 'fooA' discards qualifiers from
pointer target type
ts.c:16: warning: passing argument 1 of 'fooA' discards qualifiers from
pointer target type

Removing a 'volatile' like:
      1 struct A {
      2         unsigned long a;
      3         unsigned char *b;
      4 };
      5
      6 struct B {
      7         volatile struct A AinB1;
      8         struct A AinB2;
      9 };
     10
     11 void fooA(struct A *pa);
     12
     13 void fooB(struct B *pB)
     14 {
     15         fooA(&(pB->AinB1));
     16         fooA(&(pB->AinB2));
     17 }

and it returns
# gcc-4.2 -c -o ts.o ts.c 
ts.c: In function 'fooB':
ts.c:15: warning: passing argument 1 of 'fooA' discards qualifiers from
pointer target type

Well my understanding of 'volatile' is that this prefix prevent gcc of any
optimization/reorganization. Is it correct? if yes why this warning?

Tia for your attention,
    r.




---
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On Tue, Jan 15, 2008 at 11:29:37AM +0100, rubisher wrote:
> Hello Dave,
> 
> Compiling p-l with gcc-4.2 I see new warning "discards qualifiers from pointer
> target type":

Joel, this is a standard C question ... this list really isn't for
teaching people how to program.

> /SRCTREE/drivers/net/lib82596.c:388: warning: passing argument 2 of
> 'dma_cache_sync' discards qualifiers from pointer target type

You're passing a volatile pointer to a function which is expecting a
non-volatile pointer.  That's potentially dangerous, so gcc warns about
it.

The normal way to fix this would be to add a volatile attribute to the
argument in question:

dma_cache_sync(struct device *dev, volatile void *vaddr, size_t size,
               enum dma_data_direction direction)

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."

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From: "rubisher" <rubisher@scarlet.be>
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Subject: ccio-dma.c: struct ioa_registers{} shouldn't be volatile?
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> On Tue, Jan 15, 2008 at 11:29:37AM +0100, rubisher wrote:
> > Hello Dave,
> > 
> > Compiling p-l with gcc-4.2 I see new warning "discards qualifiers from pointer
> > target type":
> 
> Joel, this is a standard C question ... this list really isn't for
> teaching people how to program.
> 
mmm, it's not because you don't know how to translate your programming idea in
C that you don't know how to program, though ;-)

> > /SRCTREE/drivers/net/lib82596.c:388: warning: passing argument 2 of
> > 'dma_cache_sync' discards qualifiers from pointer target type
> 
> You're passing a volatile pointer to a function which is expecting a
> non-volatile pointer.  That's potentially dangerous, so gcc warns about
> it.
> 
> The normal way to fix this would be to add a volatile attribute to the
> argument in question:
> 
> dma_cache_sync(struct device *dev, volatile void *vaddr, size_t size,
>                enum dma_data_direction direction)
> 
So may be this ccio-dma.c structure:
struct ioa_registers {
        /* Runway Supervisory Set */
        int32_t unused1[12];
        u32     io_command;     /* Offset 12 */
        u32     io_status;      /* Offset 13 */
        u32     io_control;     /* Offset 14 */
        int32_t unused2[1];

        /* Runway Auxiliary Register Set */
        u32     io_err_resp;    /* Offset  0 */
        u32     io_err_info;    /* Offset  1 */
        u32     io_err_req;     /* Offset  2 */
        u32     io_err_resp_hi; /* Offset  3 */
        u32     io_tlb_entry_m; /* Offset  4 */
        u32     io_tlb_entry_l; /* Offset  5 */
        u32 unused3[1];
        u32     io_pdir_base;   /* Offset  7 */
        u32     io_io_low_hv;   /* Offset  8 */
        u32     io_io_high_hv;  /* Offset  9 */
        u32 unused4[1];
        u32     io_chain_id_mask;/* Offset 11 */
        u32 unused5[2];
        u32     io_io_low;      /* Offset 14 */
        u32     io_io_high;     /* Offset 15 */
};

a member of:

struct ioc {
        struct ioa_registers __iomem *ioc_regs;      /* I/O MMU base address */
        u8              *res_map;               /* resource map, bit == pdir
entry */
[snip]
};

"struct ioa_registers" I guess according to its name represent the layout of
internal ioa registers and should be 'qualified' as volatile to prevent gcc to
reorganize it?

e.g.
typedef volatile struct ioa_registers v_ioa_regs_t;

and
struct ioc {
        v_ioa_regs_t __iomem *ioc_regs;      /* I/O MMU base address */
[snip]
};


Tx,
    r.
---
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From: "rubisher" <rubisher@scarlet.be>
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Subject: ccio_clear_io_tlb() and __raw_write() more question?
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Hello all,

I would try to explain my worry about this function.

It is:
static CCIO_INLINE void
ccio_clear_io_tlb(struct ioc *ioc, dma_addr_t iovp, size_t byte_cnt)
{
        u32 chain_size = 1 << ioc->chainid_shift;

        iovp &= IOVP_MASK;      /* clear offset bits, just want pagenum */
        byte_cnt += chain_size;

        while(byte_cnt > chain_size) {
                __asm__ __volatile__ ("# ccio_clear_io_tlb-in");
                WRITE_U32(CMD_TLB_PURGE | iovp, &ioc->ioc_regs->io_command);
                __asm__ __volatile__ ("# ccio_clear_io_tlb-out");
                iovp += chain_size;
                byte_cnt -= chain_size;
        }
}

Without doc I guess that this call to WRITE_U32() is supposed to do what it
name says: i.e purge a TLB entry?

In details:
#define WRITE_U32(value, addr)  __raw_writel((value), (addr))

and finaly:
static inline void __raw_writel(unsigned int b, volatile void __iomem *addr)
{
        __asm__ __volatile__ ("# __raw_writel-in");
        *(volatile unsigned int __force *) addr = b;
        __asm__ __volatile__ ("# __raw_writel-out");
}

I just added __asm__ to see excatly how __raw_write() is assembled:

        # __raw_writel-in
#NO_APP
        stw %r19,48(%r28)
#APP
        # __raw_writel-out

Otoh, ioc->ioc_regs is set in:
static int __init ccio_probe(struct parisc_device *dev)
{
[snip]      
        ioc->ioc_regs = ioremap_nocache(dev->hpa.start, 4096);
[snip]
};

and according to __ioremap comment:
/*
 * Remap an arbitrary physical address space into the kernel virtual
 * address space.
 *
[snip]
 */

ioc_regs contains well a virtual address (what seems to me coherent with paper
on iommu design previously mentioned)?

puting all those stuff togther: for CPU, WRITE_U32 (aka __raw_writel), just
write something at some virtual address, right?

So my worry is that this data write could be cached and btw the actual
CMD_TLB_PURGE operation could be delay untill this entry would be purged?

What's your opinion?
What would be the best way to actualy do this write (back) to the io ctrlr?

Tx again,
  r.
---
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On Wed, Jan 16, 2008 at 01:53:25PM +0100, rubisher wrote:
> So my worry is that this data write could be cached and btw the actual
> CMD_TLB_PURGE operation could be delay untill this entry would be purged?

f-space is uncached.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."

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On Wed, Jan 16, 2008 at 01:53:25PM +0100, rubisher wrote:
> Without doc I guess that this call to WRITE_U32() is supposed to do what it
> name says: i.e purge a TLB entry?
...
> puting all those stuff togther: for CPU, WRITE_U32 (aka __raw_writel), just
> write something at some virtual address, right?
> 
> So my worry is that this data write could be cached and btw the actual
> CMD_TLB_PURGE operation could be delay untill this entry would be purged?

Willy is correct - writes to this IO space (0xf0000000) address is uncached.

While the write is "posted", it's a fairly short path to the IOMMU (1 hop).
Since this is the "unmap path" I don't expect any race conditions since
we would have to call map using the same mapping right away in order to
pickup the stale IOTLB entry. We avoid this race by allocating IO Pdir
entries in a "circular" fashion (start at bottom and work through
the entire resource bit map).

hth,
grant

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: some gij-4.3/2.6.24-rc8 crashes
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I noticed the following crashes yesterday with a plain 2.6.24-rc8 kernel.
Maybe someone has an idea?
The system still worked afterwards.

      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
gij-4.3.bin (pid 23032): Protection id trap (code 27)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111 Not tainted
r00-03  0004000f 10280000 1018d72c 60314388
r04-07  00000000 000197a8 00000001 60314388
r08-11  00000000 fffffff2 603140c8 00000006
r12-15  00176fc0 0001bb40 00000014 00001000
r16-19  402c3554 00019840 0001bb54 00000001
r20-23  000197ae 00000000 6031439e 00000000
r24-27  00000001 1050eaac 7e6c2970 1059f010
r28-31  0000000f 00000001 60314500 1018d4e4
sr00-03  00000000 00000000 00000000 000000ca
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1018d76c 1018d770
 IIR: 0e95d240    ISR: 000000ca  IOR: 000197ae
 CPU:        0   CR30: 60314000 CR31: 11111111
 ORIG_R28: 1017d598
 IAOQ[0]: do_sys_poll+0x138/0x1b0
 IAOQ[1]: do_sys_poll+0x13c/0x1b0
 RP(r2): do_sys_poll+0xf8/0x1b0
Backtrace:
 [<10106cf0>] die_if_kernel+0x130/0x1a0
 [<1010755c>] handle_interruption+0x3f4/0x58c
 [<1010a078>] intr_check_sig+0x0/0x34


      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
gij-4.3.bin (pid 23166): Protection id trap (code 27)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Tainted: G      D
r00-03  0004ff0f 10280000 1010f864 600b8148
r04-07  445e5400 54aec974 54aec778 445e5424
r08-11  00000000 00000001 54aec974 600b8148
r12-15  00000012 0001bb40 00000014 00001000
r16-19  402c3554 00019840 0001bb54 00000001
r20-23  00000012 fffffff8 37c6ea54 600b80c8
r24-27  445e5424 600b80c8 445e5424 1059f010
r28-31  00000012 00040001 600b82c0 10179e38
sr00-03  00000000 00000000 00000000 000000ca
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10138ae4 10138ae8
 IIR: 0f54d280    ISR: 000000ca  IOR: 445e5424
 CPU:        0   CR30: 600b8000 CR31: 11111111
 ORIG_R28: 1017d598
 IAOQ[0]: copy_siginfo_to_user+0x54/0x458
 IAOQ[1]: copy_siginfo_to_user+0x58/0x458
 RP(r2): setup_rt_frame+0xb8/0x388
Backtrace:
 [<10106cf0>] die_if_kernel+0x130/0x1a0
 [<1010755c>] handle_interruption+0x3f4/0x58c
 [<1010a078>] intr_check_sig+0x0/0x34


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Subject: Re: ccio_clear_io_tlb() and __raw_write() more question?
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Grant Grundler wrote:
> On Wed, Jan 16, 2008 at 01:53:25PM +0100, rubisher wrote:
>> Without doc I guess that this call to WRITE_U32() is supposed to do what it
>> name says: i.e purge a TLB entry?
> ...
>> puting all those stuff togther: for CPU, WRITE_U32 (aka __raw_writel), just
>> write something at some virtual address, right?
>>
>> So my worry is that this data write could be cached and btw the actual
>> CMD_TLB_PURGE operation could be delay untill this entry would be purged?
> 
> Willy is correct - writes to this IO space (0xf0000000) address is uncached.
> 
mmm, is it the reason why you (I mean hp engineers) call it "f-space": IO space addresses starting by 0xf?

> While the write is "posted", it's a fairly short path to the IOMMU (1 hop).
> Since this is the "unmap path" I don't expect any race conditions since
> we would have to call map using the same mapping right away in order to
> pickup the stale IOTLB entry. We avoid this race by allocating IO Pdir
> entries in a "circular" fashion (start at bottom and work through
> the entire resource bit map).
> 
> hth,
> grant
> 
> 
Tx,
	r.


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On Sun, Jan 20, 2008 at 10:06:30AM +0000, rubisher wrote:
...
>> Willy is correct - writes to this IO space (0xf0000000) address is 
>> uncached.
> mmm, is it the reason why you (I mean hp engineers) call it "f-space": IO 
> space addresses starting by 0xf?

Yes.

grant

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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Terrible PA8800 SMP Performance
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I've been doing GCC builds on a four processor PA8800 currently
running 2.6.24-rc6.  With make -j 6 bootstrap, this machine is
several hours slower than gsyprf11 doing the same GCC build and
check.  gsyprf11 is a two processor PA8700 and I typically
use make -j 4 on it.  The PA8800 is also slower than my c3750.

I've mentioned this before but some tests that never timeout even
on slow machines randomly timeout on the PA8800.

Any thoughts on what's wrong?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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On Sun, Jan 20, 2008 at 02:55:18PM -0500, John David Anglin wrote:
> I've been doing GCC builds on a four processor PA8800 currently
> running 2.6.24-rc6.  With make -j 6 bootstrap, this machine is
> several hours slower than gsyprf11 doing the same GCC build and
> check.  gsyprf11 is a two processor PA8700 and I typically
> use make -j 4 on it.  The PA8800 is also slower than my c3750.
> 

flushing 32MB of cache on every fork and exec? :/

cheers,
	kyle

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> flushing 32MB of cache on every fork and exec? :/

That's what I was thinking, although the actual situation may be worse.
It appears we may flush the entire cache (32MB I-cache and 32MB D-cache)
on every cpu.

static void cacheflush_h_tmp_function(void *dummy)
{
        flush_cache_all_local();
}

void flush_cache_all(void)
{
        on_each_cpu(cacheflush_h_tmp_function, NULL, 1, 1);
}

void flush_cache_mm(struct mm_struct *mm)
{
#ifdef CONFIG_SMP
        flush_cache_all();
#else
	flush_cache_all_local();
#endif
}

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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[snip]
> >> Willy is correct - writes to this IO space (0xf0000000) address is 
> >> uncached.
> > mmm, is it the reason why you (I mean hp engineers) call it "f-space": IO 
> > space addresses starting by 0xf?
> 
> Yes.
> 
> grant
> 
Cool ;<)

Btw, a while back, I dream to use relayfs to grab debug info.
(<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-April/053237.html>)

Somebody else write it:
<http://lkml.org/lkml/2007/11/13/208>

Obviously, I have to instrument things manually but I test it succesfully.
Here is already some primarily data test:
[snip]
:1201001199222127606:ccio_map_single_1:ccio_map_single() 0x1eb91896 ->
0x63b4896 size: 0x1000
:1201001199222203288:ccio_map_single_2: pdir 1fcb1da0 038100000eb91017
:1201001199222391065:ccio_map_single_1:ccio_map_single() 0x1febc096 ->
0x63b5096 size: 0x1000
:1201001199222460820:ccio_map_single_2: pdir 1fcb1da8 02a800000febc017
:1201001199222687339:ccio_map_single_1:ccio_map_single() 0x1eae7896 ->
0x63b6896 size: 0x1000
:1201001199222759615:ccio_map_single_2: pdir 1fcb1db0 02fb00000eae7017
:1201001199223529366:ccio_unmap_single_1:ccio_unmap_single() iovp 0x63b4896/5ea
:1201001199226080604:ccio_unmap_single_1:ccio_unmap_single() iovp 0x63b5096/5ea
:1201001199226146742:ccio_unmap_single_1:ccio_unmap_single() iovp 0x63b6896/5ea
:1201001199226443370:ccio_map_single_1:ccio_map_single() 0x1dc5f096 ->
0x63b7096 size: 0x1000
:1201001199226517113:ccio_map_single_2: pdir 1fcb1db8 005700000dc5f017
:1201001199226737227:ccio_map_single_1:ccio_map_single() 0x1dc7b096 ->
0x63b8096 size: 0x1000
:1201001199226807153:ccio_map_single_2: pdir 1fcb1dc0 007700000dc7b017
:1201001199226990619:ccio_map_single_1:ccio_map_single() 0x1dedf896 ->
0x63b9896 size: 0x1000
:1201001199227060207:ccio_map_single_2: pdir 1fcb1dc8 02c700000dedf017
:1201001199227877694:ccio_unmap_single_1:ccio_unmap_single() iovp 0x63b7096/5ea
:1201001199230211964:ccio_unmap_single_1:ccio_unmap_single() iovp 0x63b8096/5ea
:1201001199230277457:ccio_unmap_single_1:ccio_unmap_single() iovp 0x63b9896/3aa
:1201001199932184243:ccio_map_single_1:ccio_map_single() 0x1dedf896 ->
0x63ba896 size: 0x1000
:1201001199932262292:ccio_map_single_2: pdir 1fcb1dd0 02c700000dedf017
:1201001199932471488:ccio_map_single_1:ccio_map_single() 0x1dc7b096 ->
0x63bb096 size: 0x1000
:1201001199932540658:ccio_map_single_2: pdir 1fcb1dd8 007700000dc7b017
:1201001199932742704:ccio_map_single_1:ccio_map_single() 0x1dc5f096 ->
0x63bc096 size: 0x1000
[snip]

Exciting results? (just what would give me DEBUG_RUN() printk() but without
degrading system performance)

I still have to had some more DEBUG_RUN_SG() stuff and hope to be able to
collect more.

Cheers,
    r.

---
Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
http://www.scarlet.be/


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On Jan 19, 2008 12:16 PM, Helge Deller <deller@gmx.de> wrote:
> I noticed the following crashes yesterday with a plain 2.6.24-rc8 kernel.
> Maybe someone has an idea?

Please see the following URL and my inline comments.
http://www.parisc-linux.org/faq/kernelbug-howto.html

> The system still worked afterwards.
>
>       _______________________________
>      < Your System ate a SPARC! Gah! >
>       -------------------------------
>              \   ^__^
>               \  (xx)\_______
>                  (__)\       )\/\
>                   U  ||----w |
>                      ||     ||
> gij-4.3.bin (pid 23032): Protection id trap (code 27)
>
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001111 Not tainted
> r00-03  0004000f 10280000 1018d72c 60314388
> r04-07  00000000 000197a8 00000001 60314388
> r08-11  00000000 fffffff2 603140c8 00000006
> r12-15  00176fc0 0001bb40 00000014 00001000
> r16-19  402c3554 00019840 0001bb54 00000001
> r20-23  000197ae 00000000 6031439e 00000000
> r24-27  00000001 1050eaac 7e6c2970 1059f010
> r28-31  0000000f 00000001 60314500 1018d4e4
> sr00-03  00000000 00000000 00000000 000000ca
> sr04-07  00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 1018d76c 1018d770
>  IIR: 0e95d240    ISR: 000000ca  IOR: 000197ae
>  CPU:        0   CR30: 60314000 CR31: 11111111
>  ORIG_R28: 1017d598
>  IAOQ[0]: do_sys_poll+0x138/0x1b0
>  IAOQ[1]: do_sys_poll+0x13c/0x1b0
>  RP(r2): do_sys_poll+0xf8/0x1b0
> Backtrace:
>  [<10106cf0>] die_if_kernel+0x130/0x1a0
>  [<1010755c>] handle_interruption+0x3f4/0x58c
>  [<1010a078>] intr_check_sig+0x0/0x34
>
>
>       _______________________________
>      < Your System ate a SPARC! Gah! >
>       -------------------------------
>              \   ^__^
>               \  (xx)\_______
>                  (__)\       )\/\
>                   U  ||----w |
>                      ||     ||
> gij-4.3.bin (pid 23166): Protection id trap (code 27)
>
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111 Tainted: G      D
> r00-03  0004ff0f 10280000 1010f864 600b8148
> r04-07  445e5400 54aec974 54aec778 445e5424
> r08-11  00000000 00000001 54aec974 600b8148
> r12-15  00000012 0001bb40 00000014 00001000
> r16-19  402c3554 00019840 0001bb54 00000001
> r20-23  00000012 fffffff8 37c6ea54 600b80c8
> r24-27  445e5424 600b80c8 445e5424 1059f010
> r28-31  00000012 00040001 600b82c0 10179e38
> sr00-03  00000000 00000000 00000000 000000ca
> sr04-07  00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 10138ae4 10138ae8
>  IIR: 0f54d280    ISR: 000000ca  IOR: 445e5424
>  CPU:        0   CR30: 600b8000 CR31: 11111111
>  ORIG_R28: 1017d598
>  IAOQ[0]: copy_siginfo_to_user+0x54/0x458
>  IAOQ[1]: copy_siginfo_to_user+0x58/0x458
>  RP(r2): setup_rt_frame+0xb8/0x388
> Backtrace:
>  [<10106cf0>] die_if_kernel+0x130/0x1a0
>  [<1010755c>] handle_interruption+0x3f4/0x58c
>  [<1010a078>] intr_check_sig+0x0/0x34

- The userspace process received a signal.
- We setup the signal frame on the users stack.
- We start copying the siginfo struct into userspace and fail.

This isn't fatal because we are writing into a userspace address, it
*is* fatal to the userspace process.

Did you run out of memory?

c.

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> This isn't fatal because we are writing into a userspace address, it
> *is* fatal to the userspace process.
> 
> Did you run out of memory?

Don't really have a solution.  I used to see this all the time but
recent kernels have been much better in handling out of memory situations.
There is a little program in the gas testsuite that allocates 1 GB
of memory and it used to crash my c3k all the time.

The jc1 compiler is something of a memory hog.  I've stopped testing
java on my c200 because it takes forever to compile the library.
Although the compiler adapts somewhat to the memory available in
a machine, I have the sense that the current optimizations run best
on machines with 1 GB or more of memory for data.  Indeed, I think
the relative performance of the 64-bit compiler is better than it
used to be because of the larger address space and available memory.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: 'Trace patches test' [Was: ccio_clear_io_tlb() and
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On Tue, Jan 22, 2008 at 02:35:21PM +0100, rubisher wrote:
> Btw, a while back, I dream to use relayfs to grab debug info.
> (<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-April/053237.html>)
> 
> Somebody else write it:
> <http://lkml.org/lkml/2007/11/13/208>
> 
> Obviously, I have to instrument things manually but I test it succesfully.
> Here is already some primarily data test:
> [snip]
> :1201001199222127606:ccio_map_single_1:ccio_map_single() 0x1eb91896 ->
> 0x63b4896 size: 0x1000
> :1201001199222203288:ccio_map_single_2: pdir 1fcb1da0 038100000eb91017
> :1201001199222391065:ccio_map_single_1:ccio_map_single() 0x1febc096 ->
> 0x63b5096 size: 0x1000
...
> Exciting results?

Yes! Nice!

> (just what would give me DEBUG_RUN() printk() but without
>  degrading system performance)

I don't believe that. :)
Measure the CPU utilization and/or compare pktgen performance with
and without the tracing compiled into the kernel.

However, that doesn't mean this is useless. This is alot better than
rolling our own "light weight" tracing mechanism and it's certainly
alot better than using printk's to debug DMA issues (as long as
the system doesn't crash - e.g. HPMC).

hth,
grant

> I still have to had some more DEBUG_RUN_SG() stuff and hope to be able to
> collect more.
> 
> Cheers,
>     r.
> 
> ---
> Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
> http://www.scarlet.be/
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

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Subject: Re: 'Trace patches test' [Was: ccio_clear_io_tlb() and __raw_write() 
	more question?]
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> On Tue, Jan 22, 2008 at 02:35:21PM +0100, rubisher wrote:
> > Btw, a while back, I dream to use relayfs to grab debug info.
> >
(<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-April/053237.html>)
> > 
> > Somebody else write it:
> > <http://lkml.org/lkml/2007/11/13/208>
> > 
> > Obviously, I have to instrument things manually but I test it succesfully.
> > Here is already some primarily data test:
> > [snip]
> > :1201001199222127606:ccio_map_single_1:ccio_map_single() 0x1eb91896 ->
> > 0x63b4896 size: 0x1000
> > :1201001199222203288:ccio_map_single_2: pdir 1fcb1da0 038100000eb91017
> > :1201001199222391065:ccio_map_single_1:ccio_map_single() 0x1febc096 ->
> > 0x63b5096 size: 0x1000
> ...
> > Exciting results?
> 
> Yes! Nice!
> 
> > (just what would give me DEBUG_RUN() printk() but without
> >  degrading system performance)
> 
> I don't believe that. :)
> Measure the CPU utilization and/or compare pktgen performance with
> and without the tracing compiled into the kernel.
> 
Having no clue about pktgen, I have a look and rebuild kernels with this
option and here are some results:
I use a pktgen-single script like:
#!/bin/sh
# "Simply" config: run single port.

#modprobe pktgen

function pgset() {
    local result

    echo $1 > $PGDEV

    result=`cat $PGDEV | fgrep "Result: OK:"`
    if [ "$result" = "" ]; then
         cat $PGDEV | fgrep Result:
    fi
}

# On UP systems only one thread exists -- so just add devices 
# We use eth1, eth2

echo "Adding devices to run". 

# eth0 interrupts on CPU0
PGDEV=/proc/net/pktgen/kpktgend_0
pgset "rem_device_all" 
pgset "add_device eth0" 
pgset "max_before_softirq 10000"

# Configure the individual devices
echo "Configuring devices"

PGDEV=/proc/net/pktgen/eth0

pgset "clone_skb 5000000" 
pgset "min_pkt_size 60" 
pgset "max_pkt_size 60" 
pgset "dst 10.24.252.109" 
pgset "dst_mac 00:50:04:1B:2C:17"
pgset "count 5000000"

# Time to run

PGDEV=/proc/net/pktgen/pgctrl

echo "Running... ctrl^C to stop"

pgset "start" 

# cat /proc/net/pktgen/eth? | fgrep Result
=== <> ===

And grab following results:
# With Kernel including ccio_trace_marker but ccio_trace module not running
Params: count 5000000  min_pkt_size: 60  max_pkt_size: 60
     frags: 0  delay: 0  clone_skb: 5000000  ifname: eth0
     flows: 0 flowlen: 0
     queue_map_min: 0  queue_map_max: 0
     dst_min: 10.24.252.109  dst_max: 
     src_min:   src_max: 
     src_mac: 08:00:09:d2:89:15 dst_mac: 00:50:04:1b:2c:17
     udp_src_min: 9  udp_src_max: 9  udp_dst_min: 9  udp_dst_max: 9
     src_mac_count: 0  dst_mac_count: 0
     Flags: 
Current:
     pkts-sofar: 455759  errors: 0
     started: 1201169852886722us  stopped: 1201169912731117us idle: 217617us
     seq_num: 455760  cur_dst_mac_offset: 0  cur_src_mac_offset: 0
     cur_saddr: 0xa18fc16  cur_daddr: 0xa18fc6d
     cur_udp_dst: 9  cur_udp_src: 9
     cur_queue_map: 0
     flows: 0
Result: OK: 59844395(c59626778+d217617) usec, 455759 (60byte,0frags)
  7615pps 3Mb/sec (3655200bps) errors: 0

# With Kernel including ccio_trace_marker and ccio_trace module running
Params: count 5000000  min_pkt_size: 60  max_pkt_size: 60
     frags: 0  delay: 0  clone_skb: 5000000  ifname: eth0
     flows: 0 flowlen: 0
     queue_map_min: 0  queue_map_max: 0
     dst_min: 10.24.252.109  dst_max: 
     src_min:   src_max: 
     src_mac: 08:00:09:d2:89:15 dst_mac: 00:50:04:1b:2c:17
     udp_src_min: 9  udp_src_max: 9  udp_dst_min: 9  udp_dst_max: 9
     src_mac_count: 0  dst_mac_count: 0
     Flags: 
Current:
     pkts-sofar: 138863  errors: 0
     started: 1201170611403245us  stopped: 1201170675285642us idle: 4334664us
     seq_num: 138864  cur_dst_mac_offset: 0  cur_src_mac_offset: 0
     cur_saddr: 0xa18fc16  cur_daddr: 0xa18fc6d
     cur_udp_dst: 9  cur_udp_src: 9
     cur_queue_map: 0
     flows: 0
Result: OK: 63882397(c59547733+d4334664) usec, 138863 (60byte,0frags)
  2173pps 1Mb/sec (1043040bps) errors: 0

# With Kernel without ccio_trace_marker
Params: count 5000000  min_pkt_size: 60  max_pkt_size: 60
     frags: 0  delay: 0  clone_skb: 5000000  ifname: eth0
     flows: 0 flowlen: 0
     queue_map_min: 0  queue_map_max: 0
     dst_min: 10.24.252.109  dst_max: 
     src_min:   src_max: 
     src_mac: 08:00:09:d2:89:15 dst_mac: 00:50:04:1b:2c:17
     udp_src_min: 9  udp_src_max: 9  udp_dst_min: 9  udp_dst_max: 9
     src_mac_count: 0  dst_mac_count: 0
     Flags: 
Current:
     pkts-sofar: 474350  errors: 0
     started: 1201243919209991us  stopped: 1201243981190756us idle: 188937us
     seq_num: 474351  cur_dst_mac_offset: 0  cur_src_mac_offset: 0
     cur_saddr: 0xa18fc16  cur_daddr: 0xa18fc6d
     cur_udp_dst: 9  cur_udp_src: 9
     cur_queue_map: 0
     flows: 0
Result: OK: 61980765(c61791828+d188937) usec, 474350 (60byte,0frags)
  7653pps 3Mb/sec (3673440bps) errors: 0

I am not sure how to read those results so I also do some ftp and grab
following data:

# With Kernel including ccio_trace_marker but ccio_trace module not running
ftp> put linux-2.6.24-rc4-pa-git-20071206.tar.bz2
local: linux-2.6.24-rc4-pa-git-20071206.tar.bz2 remote:
linux-2.6.24-rc4-pa-git-20071206.tar.bz2
200 PORT command successful.
150 Opening BINARY mode data connection for
'linux-2.6.24-rc4-pa-git-20071206.tar.bz2'.
226 Transfer complete.
47631536 bytes sent in 54.42 secs (854.8 kB/s)

# With Kernel including ccio_trace_marker and ccio_trace module running
ftp> put linux-2.6.24-rc4-pa-git-20071206.tar.bz2
local: linux-2.6.24-rc4-pa-git-20071206.tar.bz2 remote:
linux-2.6.24-rc4-pa-git-20071206.tar.bz2
200 PORT command successful.
150 Opening BINARY mode data connection for
'linux-2.6.24-rc4-pa-git-20071206.tar.bz2'.
226 Transfer complete.
47631536 bytes sent in 59.26 secs (784.9 kB/s)

# With kernel without ccio_trace_marker
ftp> put linux-2.6.24-rc4-pa-git-20071206.tar.bz2
local: linux-2.6.24-rc4-pa-git-20071206.tar.bz2 remote:
linux-2.6.24-rc4-pa-git-20071206.tar.bz2
200 PORT command successful.
150 Opening BINARY mode data connection for
'linux-2.6.24-rc4-pa-git-20071206.tar.bz2'.
226 Transfer complete.
47631536 bytes sent in 55.66 secs (835.8 kB/s)

I agree it decrease a bit the system performance but doesn't slow it down so
much that it would take several hours to boot has printk() did to me ;-)

> However, that doesn't mean this is useless. This is alot better than
> rolling our own "light weight" tracing mechanism and it's certainly
> alot better than using printk's to debug DMA issues (as long as
> the system doesn't crash - e.g. HPMC).
> 
Yes there are limits to this method but for parisc I know so few kernel
debugging tools that I would like to mentioned here the easiness of this patch
implementation (even for a non C programmer as I ;<)

Cheers,
    r.

PS: I didn't put this code here just because all what I have wouldn't apply on
the current p-l ccio-dma.c src.


> hth,
> grant
> 
> > I still have to had some more DEBUG_RUN_SG() stuff and hope to be able to
> > collect more.
> > 
> > Cheers,
> >     r.
> > 
> > ---
> > Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
> > http://www.scarlet.be/
> > 
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> -
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 
---
Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
http://www.scarlet.be/


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Subject: Re: 'Trace patches test' [Was: ccio_clear_io_tlb() and __raw_write() 
	more question?]
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> On Tue, Jan 22, 2008 at 02:35:21PM +0100, rubisher wrote:
> > Btw, a while back, I dream to use relayfs to grab debug info.
> >
(<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-April/053237.html>)
> > 
> > Somebody else write it:
> > <http://lkml.org/lkml/2007/11/13/208>
> > 
> > Obviously, I have to instrument things manually but I test it succesfully.
> > Here is already some primarily data test:
> > [snip]
> > :1201001199222127606:ccio_map_single_1:ccio_map_single() 0x1eb91896 ->
> > 0x63b4896 size: 0x1000
> > :1201001199222203288:ccio_map_single_2: pdir 1fcb1da0 038100000eb91017
> > :1201001199222391065:ccio_map_single_1:ccio_map_single() 0x1febc096 ->
> > 0x63b5096 size: 0x1000
> ...
> > Exciting results?
> 
> Yes! Nice!
> 
> > (just what would give me DEBUG_RUN() printk() but without
> >  degrading system performance)
> 
> I don't believe that. :)
> Measure the CPU utilization and/or compare pktgen performance with
> and without the tracing compiled into the kernel.
> 
Having no clue about pktgen, I have a look and rebuild kernels with this
option and here are some results:
I use a pktgen-single script like:
#!/bin/sh
# "Simply" config: run single port.

#modprobe pktgen

function pgset() {
    local result

    echo $1 > $PGDEV

    result=`cat $PGDEV | fgrep "Result: OK:"`
    if [ "$result" = "" ]; then
         cat $PGDEV | fgrep Result:
    fi
}

# On UP systems only one thread exists -- so just add devices 
# We use eth1, eth2

echo "Adding devices to run". 

# eth0 interrupts on CPU0
PGDEV=/proc/net/pktgen/kpktgend_0
pgset "rem_device_all" 
pgset "add_device eth0" 
pgset "max_before_softirq 10000"

# Configure the individual devices
echo "Configuring devices"

PGDEV=/proc/net/pktgen/eth0

pgset "clone_skb 5000000" 
pgset "min_pkt_size 60" 
pgset "max_pkt_size 60" 
pgset "dst 10.24.252.109" 
pgset "dst_mac 00:50:04:1B:2C:17"
pgset "count 5000000"

# Time to run

PGDEV=/proc/net/pktgen/pgctrl

echo "Running... ctrl^C to stop"

pgset "start" 

# cat /proc/net/pktgen/eth? | fgrep Result
=== <> ===

And grab following results:
# With Kernel including ccio_trace_marker but ccio_trace module not running
Params: count 5000000  min_pkt_size: 60  max_pkt_size: 60
     frags: 0  delay: 0  clone_skb: 5000000  ifname: eth0
     flows: 0 flowlen: 0
     queue_map_min: 0  queue_map_max: 0
     dst_min: 10.24.252.109  dst_max: 
     src_min:   src_max: 
     src_mac: 08:00:09:d2:89:15 dst_mac: 00:50:04:1b:2c:17
     udp_src_min: 9  udp_src_max: 9  udp_dst_min: 9  udp_dst_max: 9
     src_mac_count: 0  dst_mac_count: 0
     Flags: 
Current:
     pkts-sofar: 455759  errors: 0
     started: 1201169852886722us  stopped: 1201169912731117us idle: 217617us
     seq_num: 455760  cur_dst_mac_offset: 0  cur_src_mac_offset: 0
     cur_saddr: 0xa18fc16  cur_daddr: 0xa18fc6d
     cur_udp_dst: 9  cur_udp_src: 9
     cur_queue_map: 0
     flows: 0
Result: OK: 59844395(c59626778+d217617) usec, 455759 (60byte,0frags)
  7615pps 3Mb/sec (3655200bps) errors: 0

# With Kernel including ccio_trace_marker and ccio_trace module running
Params: count 5000000  min_pkt_size: 60  max_pkt_size: 60
     frags: 0  delay: 0  clone_skb: 5000000  ifname: eth0
     flows: 0 flowlen: 0
     queue_map_min: 0  queue_map_max: 0
     dst_min: 10.24.252.109  dst_max: 
     src_min:   src_max: 
     src_mac: 08:00:09:d2:89:15 dst_mac: 00:50:04:1b:2c:17
     udp_src_min: 9  udp_src_max: 9  udp_dst_min: 9  udp_dst_max: 9
     src_mac_count: 0  dst_mac_count: 0
     Flags: 
Current:
     pkts-sofar: 138863  errors: 0
     started: 1201170611403245us  stopped: 1201170675285642us idle: 4334664us
     seq_num: 138864  cur_dst_mac_offset: 0  cur_src_mac_offset: 0
     cur_saddr: 0xa18fc16  cur_daddr: 0xa18fc6d
     cur_udp_dst: 9  cur_udp_src: 9
     cur_queue_map: 0
     flows: 0
Result: OK: 63882397(c59547733+d4334664) usec, 138863 (60byte,0frags)
  2173pps 1Mb/sec (1043040bps) errors: 0

# With Kernel without ccio_trace_marker
Params: count 5000000  min_pkt_size: 60  max_pkt_size: 60
     frags: 0  delay: 0  clone_skb: 5000000  ifname: eth0
     flows: 0 flowlen: 0
     queue_map_min: 0  queue_map_max: 0
     dst_min: 10.24.252.109  dst_max: 
     src_min:   src_max: 
     src_mac: 08:00:09:d2:89:15 dst_mac: 00:50:04:1b:2c:17
     udp_src_min: 9  udp_src_max: 9  udp_dst_min: 9  udp_dst_max: 9
     src_mac_count: 0  dst_mac_count: 0
     Flags: 
Current:
     pkts-sofar: 474350  errors: 0
     started: 1201243919209991us  stopped: 1201243981190756us idle: 188937us
     seq_num: 474351  cur_dst_mac_offset: 0  cur_src_mac_offset: 0
     cur_saddr: 0xa18fc16  cur_daddr: 0xa18fc6d
     cur_udp_dst: 9  cur_udp_src: 9
     cur_queue_map: 0
     flows: 0
Result: OK: 61980765(c61791828+d188937) usec, 474350 (60byte,0frags)
  7653pps 3Mb/sec (3673440bps) errors: 0

I am not sure how to read those results so I also do some ftp and grab
following data:

# With Kernel including ccio_trace_marker but ccio_trace module not running
ftp> put linux-2.6.24-rc4-pa-git-20071206.tar.bz2
local: linux-2.6.24-rc4-pa-git-20071206.tar.bz2 remote:
linux-2.6.24-rc4-pa-git-20071206.tar.bz2
200 PORT command successful.
150 Opening BINARY mode data connection for
'linux-2.6.24-rc4-pa-git-20071206.tar.bz2'.
226 Transfer complete.
47631536 bytes sent in 54.42 secs (854.8 kB/s)

# With Kernel including ccio_trace_marker and ccio_trace module running
ftp> put linux-2.6.24-rc4-pa-git-20071206.tar.bz2
local: linux-2.6.24-rc4-pa-git-20071206.tar.bz2 remote:
linux-2.6.24-rc4-pa-git-20071206.tar.bz2
200 PORT command successful.
150 Opening BINARY mode data connection for
'linux-2.6.24-rc4-pa-git-20071206.tar.bz2'.
226 Transfer complete.
47631536 bytes sent in 59.26 secs (784.9 kB/s)

# With kernel without ccio_trace_marker
ftp> put linux-2.6.24-rc4-pa-git-20071206.tar.bz2
local: linux-2.6.24-rc4-pa-git-20071206.tar.bz2 remote:
linux-2.6.24-rc4-pa-git-20071206.tar.bz2
200 PORT command successful.
150 Opening BINARY mode data connection for
'linux-2.6.24-rc4-pa-git-20071206.tar.bz2'.
226 Transfer complete.
47631536 bytes sent in 55.66 secs (835.8 kB/s)

I agree it decrease a bit the system performance but doesn't slow it down so
much that it would take several hours to boot has printk() did to me ;-)

> However, that doesn't mean this is useless. This is alot better than
> rolling our own "light weight" tracing mechanism and it's certainly
> alot better than using printk's to debug DMA issues (as long as
> the system doesn't crash - e.g. HPMC).
> 
Yes there are limits to this method but for parisc I know so few kernel
debugging tools that I would like to mentioned here the easiness of this patch
implementation (even for a non C programmer as I ;<)

Cheers,
    r.

PS: I didn't put this code here just because all what I have wouldn't apply on
the current p-l ccio-dma.c src.


> hth,
> grant
> 
> > I still have to had some more DEBUG_RUN_SG() stuff and hope to be able to
> > collect more.
> > 
> > Cheers,
> >     r.
> > 
> > ---
> > Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
> > http://www.scarlet.be/
> > 
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> -
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 
---
Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
http://www.scarlet.be/


From - Thu Nov 08 21:01:56 2018
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From: "rubisher" <rubisher@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 'Trace patches test' [Was: ccio_clear_io_tlb() and __raw_write() 
	more question?]
Date: Fri, 25 Jan 2008 11:20:10 +0100
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	"rubisher" <rubisher@scarlet.be>
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> On Tue, Jan 22, 2008 at 02:35:21PM +0100, rubisher wrote:
> > Btw, a while back, I dream to use relayfs to grab debug info.
> >
(<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-April/053237.html>)
> > 
> > Somebody else write it:
> > <http://lkml.org/lkml/2007/11/13/208>
> > 
> > Obviously, I have to instrument things manually but I test it succesfully.
> > Here is already some primarily data test:
> > [snip]
> > :1201001199222127606:ccio_map_single_1:ccio_map_single() 0x1eb91896 ->
> > 0x63b4896 size: 0x1000
> > :1201001199222203288:ccio_map_single_2: pdir 1fcb1da0 038100000eb91017
> > :1201001199222391065:ccio_map_single_1:ccio_map_single() 0x1febc096 ->
> > 0x63b5096 size: 0x1000
> ...
> > Exciting results?
> 
> Yes! Nice!
> 
> > (just what would give me DEBUG_RUN() printk() but without
> >  degrading system performance)
> 
> I don't believe that. :)
> Measure the CPU utilization and/or compare pktgen performance with
> and without the tracing compiled into the kernel.
> 
Having no clue about pktgen, I have a look and rebuild kernels with this
option and here are some results:
I use a pktgen-single script like:
#!/bin/sh
# "Simply" config: run single port.

#modprobe pktgen

function pgset() {
    local result

    echo $1 > $PGDEV

    result=`cat $PGDEV | fgrep "Result: OK:"`
    if [ "$result" = "" ]; then
         cat $PGDEV | fgrep Result:
    fi
}

# On UP systems only one thread exists -- so just add devices 
# We use eth1, eth2

echo "Adding devices to run". 

# eth0 interrupts on CPU0
PGDEV=/proc/net/pktgen/kpktgend_0
pgset "rem_device_all" 
pgset "add_device eth0" 
pgset "max_before_softirq 10000"

# Configure the individual devices
echo "Configuring devices"

PGDEV=/proc/net/pktgen/eth0

pgset "clone_skb 5000000" 
pgset "min_pkt_size 60" 
pgset "max_pkt_size 60" 
pgset "dst 10.24.252.109" 
pgset "dst_mac 00:50:04:1B:2C:17"
pgset "count 5000000"

# Time to run

PGDEV=/proc/net/pktgen/pgctrl

echo "Running... ctrl^C to stop"

pgset "start" 

# cat /proc/net/pktgen/eth? | fgrep Result
=== <> ===

And grab following results:
# With Kernel including ccio_trace_marker but ccio_trace module not running
Params: count 5000000  min_pkt_size: 60  max_pkt_size: 60
     frags: 0  delay: 0  clone_skb: 5000000  ifname: eth0
     flows: 0 flowlen: 0
     queue_map_min: 0  queue_map_max: 0
     dst_min: 10.24.252.109  dst_max: 
     src_min:   src_max: 
     src_mac: 08:00:09:d2:89:15 dst_mac: 00:50:04:1b:2c:17
     udp_src_min: 9  udp_src_max: 9  udp_dst_min: 9  udp_dst_max: 9
     src_mac_count: 0  dst_mac_count: 0
     Flags: 
Current:
     pkts-sofar: 455759  errors: 0
     started: 1201169852886722us  stopped: 1201169912731117us idle: 217617us
     seq_num: 455760  cur_dst_mac_offset: 0  cur_src_mac_offset: 0
     cur_saddr: 0xa18fc16  cur_daddr: 0xa18fc6d
     cur_udp_dst: 9  cur_udp_src: 9
     cur_queue_map: 0
     flows: 0
Result: OK: 59844395(c59626778+d217617) usec, 455759 (60byte,0frags)
  7615pps 3Mb/sec (3655200bps) errors: 0

# With Kernel including ccio_trace_marker and ccio_trace module running
Params: count 5000000  min_pkt_size: 60  max_pkt_size: 60
     frags: 0  delay: 0  clone_skb: 5000000  ifname: eth0
     flows: 0 flowlen: 0
     queue_map_min: 0  queue_map_max: 0
     dst_min: 10.24.252.109  dst_max: 
     src_min:   src_max: 
     src_mac: 08:00:09:d2:89:15 dst_mac: 00:50:04:1b:2c:17
     udp_src_min: 9  udp_src_max: 9  udp_dst_min: 9  udp_dst_max: 9
     src_mac_count: 0  dst_mac_count: 0
     Flags: 
Current:
     pkts-sofar: 138863  errors: 0
     started: 1201170611403245us  stopped: 1201170675285642us idle: 4334664us
     seq_num: 138864  cur_dst_mac_offset: 0  cur_src_mac_offset: 0
     cur_saddr: 0xa18fc16  cur_daddr: 0xa18fc6d
     cur_udp_dst: 9  cur_udp_src: 9
     cur_queue_map: 0
     flows: 0
Result: OK: 63882397(c59547733+d4334664) usec, 138863 (60byte,0frags)
  2173pps 1Mb/sec (1043040bps) errors: 0

# With Kernel without ccio_trace_marker
Params: count 5000000  min_pkt_size: 60  max_pkt_size: 60
     frags: 0  delay: 0  clone_skb: 5000000  ifname: eth0
     flows: 0 flowlen: 0
     queue_map_min: 0  queue_map_max: 0
     dst_min: 10.24.252.109  dst_max: 
     src_min:   src_max: 
     src_mac: 08:00:09:d2:89:15 dst_mac: 00:50:04:1b:2c:17
     udp_src_min: 9  udp_src_max: 9  udp_dst_min: 9  udp_dst_max: 9
     src_mac_count: 0  dst_mac_count: 0
     Flags: 
Current:
     pkts-sofar: 474350  errors: 0
     started: 1201243919209991us  stopped: 1201243981190756us idle: 188937us
     seq_num: 474351  cur_dst_mac_offset: 0  cur_src_mac_offset: 0
     cur_saddr: 0xa18fc16  cur_daddr: 0xa18fc6d
     cur_udp_dst: 9  cur_udp_src: 9
     cur_queue_map: 0
     flows: 0
Result: OK: 61980765(c61791828+d188937) usec, 474350 (60byte,0frags)
  7653pps 3Mb/sec (3673440bps) errors: 0

I am not sure how to read those results so I also do some ftp and grab
following data:

# With Kernel including ccio_trace_marker but ccio_trace module not running
ftp> put linux-2.6.24-rc4-pa-git-20071206.tar.bz2
local: linux-2.6.24-rc4-pa-git-20071206.tar.bz2 remote:
linux-2.6.24-rc4-pa-git-20071206.tar.bz2
200 PORT command successful.
150 Opening BINARY mode data connection for
'linux-2.6.24-rc4-pa-git-20071206.tar.bz2'.
226 Transfer complete.
47631536 bytes sent in 54.42 secs (854.8 kB/s)

# With Kernel including ccio_trace_marker and ccio_trace module running
ftp> put linux-2.6.24-rc4-pa-git-20071206.tar.bz2
local: linux-2.6.24-rc4-pa-git-20071206.tar.bz2 remote:
linux-2.6.24-rc4-pa-git-20071206.tar.bz2
200 PORT command successful.
150 Opening BINARY mode data connection for
'linux-2.6.24-rc4-pa-git-20071206.tar.bz2'.
226 Transfer complete.
47631536 bytes sent in 59.26 secs (784.9 kB/s)

# With kernel without ccio_trace_marker
ftp> put linux-2.6.24-rc4-pa-git-20071206.tar.bz2
local: linux-2.6.24-rc4-pa-git-20071206.tar.bz2 remote:
linux-2.6.24-rc4-pa-git-20071206.tar.bz2
200 PORT command successful.
150 Opening BINARY mode data connection for
'linux-2.6.24-rc4-pa-git-20071206.tar.bz2'.
226 Transfer complete.
47631536 bytes sent in 55.66 secs (835.8 kB/s)

I agree it decrease a bit the system performance but doesn't slow it down so
much that it would take several hours to boot has printk() did to me ;-)

> However, that doesn't mean this is useless. This is alot better than
> rolling our own "light weight" tracing mechanism and it's certainly
> alot better than using printk's to debug DMA issues (as long as
> the system doesn't crash - e.g. HPMC).
> 
Yes there are limits to this method but for parisc I know so few kernel
debugging tools that I would like to mentioned here the easiness of this patch
implementation (even for a non C programmer as I ;<)

Cheers,
    r.

PS: I didn't put this code here just because all what I have wouldn't apply on
the current p-l ccio-dma.c src.


> hth,
> grant
> 
> > I still have to had some more DEBUG_RUN_SG() stuff and hope to be able to
> > collect more.
> > 
> > Cheers,
> >     r.
> > 
> > ---
> > Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
> > http://www.scarlet.be/
> > 
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> -
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 
---
Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
http://www.scarlet.be/


From - Thu Nov 08 21:01:56 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: [PATCH] fix intermittent panics on wide firmware boxes
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I've been trying to diagnose this panic on a pa8800 box with git head:

LBA: Truncating lmmio_space [fffffffff0000000/fffffffffecffffe] to [fffffffff0000000,fffffffffe77ffff]
powersw: Soft power switch support not available.
Backtrace:
 [<000000004011c7a0>] real32_call+0x148/0x178
 [<000000004013ec7c>] enqueue_task_fair+0x6c/0xb0
 [<000000004013f418>] update_rq_clock+0x30/0x48
 [<000000004013e800>] set_next_entity+0x38/0x70
 [<000000004016dca0>] autoremove_wake_function+0x18/0x48
 [<00000000401bbda4>] cache_alloc_debugcheck_after+0x24c/0x300
 [<000000004025c500>] kobject_uevent_env+0x418/0x5a8
 [<000000004025b10c>] kobject_put+0x24/0x30
 [<000000004015af60>] __sysctl_head_next+0x78/0x120
 [<0000000040174234>] sysctl_check_table+0x494/0x938
 [<000000004015b078>] sysctl_head_finish+0x40/0x60
 [<000000004011c7a0>] real32_call+0x148/0x178
 [<000000004013e3f8>] calc_delta_mine+0x68/0xf8
 [<000000004018621c>] touch_softlockup_watchdog+0x3c/0x50
 [<000000004014a66c>] task_tick_fair+0x84/0xf0
 [<0000000040186720>] softlockup_tick+0x128/0x1c0


Kernel Fault: Code=26 regs=000000007f46c7d0 (Addr=0000000000000158)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Not tainted
r00-03  000000000804000f 0000000040583be0 0000000040104084 000000007f46c290
r04-07  000000004057f3e0 000000007f46c360 0000000000000000 000000007f44e040
r08-11  00000000404d7dc0 0000000000000000 000000007f44e288 00000000405bc340
r12-15  0000000000000001 00000000405bbc00 0000000040447300 0000000000000001
r16-19  000000007f46c360 00000000404dc400 00000000405bc340 0000000000000000
r20-23  000000007f46c290 0000000000000000 0000000000000310 0000000000000000
r24-27  0000000000000000 000000007f46c360 00000000403d5030 000000004057f3e0
r28-31  000000007f46c000 000000007f46c690 000000007f46c7d0 000000007f46c000
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004011af54 000000004011af58
 IIR: 4a7702b0    ISR: 0000000000000000  IOR: 0000000000000158
 CPU:        0   CR30: 000000007f46c000 CR31: fffffff0f0e098e0
 ORIG_R28: 000000004013e3f8
 IAOQ[0]: handle_interruption+0x804/0x890
 IAOQ[1]: handle_interruption+0x808/0x890
 RP(r2): intr_check_sig+0x0/0x38

The reason is actually that %cr30 is NULL, which should be an
impossibility.  However, all the real32_call() places in the trace
intrigued me because they shouldn't happen on a pa8800 ... it has only
wide firmware, so only 64 bit realmode calls can work.

It transpires that the way we call PDC console constantly causes these
real32_call() calls to be invoked leading to the panic.  Sure enough, if
I scrub them out of my build with the attached patch, the panic goes and
git head boots just fine.

James

diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 27827bc..7ddf756 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -11,10 +11,11 @@ obj-y	     	:= cache.o pacache.o setup.o traps.o time.o irq.o \
 		   pa7300lc.o syscall.o entry.o sys_parisc.o firmware.o \
 		   ptrace.o hardware.o inventory.o drivers.o semaphore.o \
 		   signal.o hpmc.o real2.o parisc_ksyms.o unaligned.o \
-		   process.o processor.o pdc_cons.o pdc_chassis.o unwind.o \
+		   process.o processor.o pdc_chassis.o unwind.o \
 		   topology.o
 
 obj-$(CONFIG_SMP)	+= smp.o
+obj-$(CONFIG_PDC_CONSOLE)	+= pdc_cons.o
 obj-$(CONFIG_PA11)	+= pci-dma.o
 obj-$(CONFIG_PCI)	+= pci.o
 obj-$(CONFIG_MODULES)	+= module.o
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 4ab83d5..378bc61 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1080,7 +1080,7 @@ void pdc_io_reset_devices(void)
 	spin_unlock_irqrestore(&pdc_lock, flags);
 }
 
-
+#ifdef CONFIG_PDC_CONSOLE
 /**
  * pdc_iodc_print - Console print using IODC.
  * @str: the string to output.
@@ -1168,7 +1168,9 @@ int pdc_iodc_getc(void)
 	
 	return ch;
 }
+#endif
 
+#ifdef CONFIG_FB_STI
 int pdc_sti_call(unsigned long func, unsigned long flags,
                  unsigned long inptr, unsigned long outputr,
                  unsigned long glob_cfg)
@@ -1183,6 +1185,7 @@ int pdc_sti_call(unsigned long func, unsigned long flags,
         return retval;
 }
 EXPORT_SYMBOL(pdc_sti_call);
+#endif
 
 #ifdef CONFIG_64BIT
 /**
@@ -1375,7 +1378,6 @@ int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val)
  * to overlay real_stack (real2.S), preparing a 32-bit call frame.
  * real32_call_asm() then uses this stack in narrow real mode
  */
-
 struct narrow_stack {
 	/* use int, not long which is 64 bits */
 	unsigned int arg13;
@@ -1404,6 +1406,14 @@ long real32_call(unsigned long fn, ...)
 	extern unsigned long real32_call_asm(unsigned int *,
 					     unsigned int *, 
 					     unsigned int);
+
+	/* Calling real32_call without narrow firmware is a serious
+	 * problem and can lead to crashes */
+	if (unlikely(!parisc_narrow_firmware)) {
+		printk(KERN_ERR "Invalid call to 32 bit firmware\n");
+		WARN_ON(1);
+		return -EINVAL;
+	}
 	
 	va_start(args, fn);
 	real_stack.arg0 = va_arg(args, unsigned int);
diff --git a/include/asm-parisc/pdc.h b/include/asm-parisc/pdc.h
index deda8c3..d11aabb 100644
--- a/include/asm-parisc/pdc.h
+++ b/include/asm-parisc/pdc.h
@@ -588,8 +588,13 @@ struct pdc_hpmc_pim_20 { /* PDC_PIM */
 	__u64 fr[32];
 };
 
+#ifdef CONFIG_PDC_CONSOLE
 void pdc_console_init(void);	/* in pdc_console.c */
 void pdc_console_restart(void);
+#else
+static inline void  pdc_console_init(void) { }
+static inline void pdc_console_restart(void) { }
+#endif
 
 void setup_pdc(void);		/* in inventory.c */
 



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> +#ifdef CONFIG_FB_STI

Should this be CONFIG_STI_CONSOLE?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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On Sun, 2008-02-03 at 19:09 -0500, John David Anglin wrote:
> > +#ifdef CONFIG_FB_STI
> 
> Should this be CONFIG_STI_CONSOLE?

No, they're used in drivers/video/console/sticore.c which has a
CONFIG_FB_STI gating it.  Whether it should is another patch matter ....

James



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> > Should this be CONFIG_STI_CONSOLE?
> 
> No, they're used in drivers/video/console/sticore.c which has a
> CONFIG_FB_STI gating it.  Whether it should is another patch matter ....

The reason I asked is I tried to apply your change against
2.6.22.16 and ran into problems with undefined references from
drivers/video/console/sticore.c.  However, the build didn't work.
Lost console after the infamous search the FAQ message.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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> No, they're used in drivers/video/console/sticore.c which has a
> CONFIG_FB_STI gating it.  Whether it should is another patch matter ....

Looking at the Makefile, I see

obj-$(CONFIG_STI_CONSOLE)         += sticon.o sticore.o font.o
and
obj-$(CONFIG_FB_STI)              += sticore.o font.o

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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From: Adrian Bunk <bunk@kernel.org>
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Subject: parisc compile error
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Commit 9e2779fa281cfda13ac060753d674bbcaa23367e broke parisc:

<--  snip  -->

...
  CC      arch/parisc/kernel/asm-offsets.s
In file included from include/asm/pgtable.h:13,
                 from arch/parisc/kernel/asm-offsets.c:36:
include/linux/mm.h: In function 'is_vmalloc_addr':
include/linux/mm.h:243: error: 'VMALLOC_START' undeclared (first use in this function)
include/linux/mm.h:243: error: (Each undeclared identifier is reported only once
include/linux/mm.h:243: error: for each function it appears in.)
include/linux/mm.h:243: error: 'VMALLOC_END' undeclared (first use in this function)
make[1]: *** [arch/parisc/kernel/asm-offsets.s] Error 1

<--  snip  -->

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed


From - Thu Nov 08 21:01:56 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: parisc compile error
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On Fri, Feb 08, 2008 at 01:12:32AM +0200, Adrian Bunk wrote:
> Commit 9e2779fa281cfda13ac060753d674bbcaa23367e broke parisc:
> 
> <--  snip  -->
> 
> ...
>   CC      arch/parisc/kernel/asm-offsets.s
> In file included from include/asm/pgtable.h:13,
>                  from arch/parisc/kernel/asm-offsets.c:36:
> include/linux/mm.h: In function 'is_vmalloc_addr':
> include/linux/mm.h:243: error: 'VMALLOC_START' undeclared (first use in this function)
> include/linux/mm.h:243: error: (Each undeclared identifier is reported only once
> include/linux/mm.h:243: error: for each function it appears in.)
> include/linux/mm.h:243: error: 'VMALLOC_END' undeclared (first use in this function)
> make[1]: *** [arch/parisc/kernel/asm-offsets.s] Error 1
> 

yes, it's in my batch of fixes.

thanks for the reminder.

cheers, kyle

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On Thu, 7 Feb 2008, Kyle McMartin wrote:

> yes, it's in my batch of fixes.

<big sigh of relief> So I do not have to worry about it?

From - Thu Nov 08 21:01:57 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: parisc compile error
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On Thu, Feb 07, 2008 at 03:33:07PM -0800, Christoph Lameter wrote:
> On Thu, 7 Feb 2008, Kyle McMartin wrote:
> 
> > yes, it's in my batch of fixes.
> 
> <big sigh of relief> So I do not have to worry about it?
> 

haha no. i don't expect people to have to untangle the mess of includes
that is <asm-parisc/*.h> :)

cheers, kyle

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From: Roel Kluin <12o3l@tiscali.nl>
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Subject: [PATCH?][arch/parisc/kernel/pci-dma.c] pcxl_dma_ops.alloc_noncoherent
 = pa11_dma_alloc_consistent?
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duplicate pa11_dma_alloc_consistent; more appropriate appears
pa11_dma_alloc_noncoherent here. 

Not tested, please confirm that this fix is correct
---
fix noncoherent allocation

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
---
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 9448d4e..0e8b71f 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -549,7 +549,7 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
 struct hppa_dma_ops pcxl_dma_ops = {
 	.dma_supported =	pa11_dma_supported,
 	.alloc_consistent =	pa11_dma_alloc_consistent,
-	.alloc_noncoherent =	pa11_dma_alloc_consistent,
+	.alloc_noncoherent =	pa11_dma_alloc_noncoherent,
 	.free_consistent =	pa11_dma_free_consistent,
 	.map_single =		pa11_dma_map_single,
 	.unmap_single =		pa11_dma_unmap_single,

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Subject: Re: [PATCH?][arch/parisc/kernel/pci-dma.c] pcxl_dma_ops.alloc_noncoherent = pa11_dma_alloc_consistent?
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On Mon, Feb 11, 2008 at 05:23:33PM +0100, Roel Kluin wrote:
> duplicate pa11_dma_alloc_consistent; more appropriate appears
> pa11_dma_alloc_noncoherent here. 
> 
> Not tested, please confirm that this fix is correct

I don't think it is.  The memories are fading, so I don't recall why it
is we do it this way, but I'm pretty sure it's correct the way it is.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."

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Subject: Re: [PATCH?][arch/parisc/kernel/pci-dma.c]
	pcxl_dma_ops.alloc_noncoherent = pa11_dma_alloc_consistent?
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On Mon, 2008-02-11 at 17:23 +0100, Roel Kluin wrote:
> duplicate pa11_dma_alloc_consistent; more appropriate appears
> pa11_dma_alloc_noncoherent here. 
> 
> Not tested, please confirm that this fix is correct

No, it looks completely incorrect to me.  What makes you think a pcxl
box has a problem with coherency?

James



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Matthew Wilcox wrote:
> On Mon, Feb 11, 2008 at 05:23:33PM +0100, Roel Kluin wrote:
>> duplicate pa11_dma_alloc_consistent; more appropriate appears
>> pa11_dma_alloc_noncoherent here. 
>>
>> Not tested, please confirm that this fix is correct
> 
> I don't think it is.  The memories are fading, so I don't recall why it
> is we do it this way, but I'm pretty sure it's correct the way it is.
> 
Maybe this helps a bit: later I found that something similar occurs in 
drivers/parisc/{ccio-dma.c, sba_iommu.c}:

1010: .alloc_consistent =     ccio_alloc_consistent,
      .alloc_noncoherent =    ccio_alloc_consistent,

1036: .alloc_consistent =     sba_alloc_consistent,
      .alloc_noncoherent =    sba_alloc_consistent,

However in these files the functions {ccio_alloc, sba_alloc}_noncoherent
do not exist.

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Subject: Re: [PATCH?][arch/parisc/kernel/pci-dma.c]
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On Mon, 2008-02-11 at 09:42 -0700, Matthew Wilcox wrote:
> On Mon, Feb 11, 2008 at 05:23:33PM +0100, Roel Kluin wrote:
> > duplicate pa11_dma_alloc_consistent; more appropriate appears
> > pa11_dma_alloc_noncoherent here. 
> > 
> > Not tested, please confirm that this fix is correct
> 
> I don't think it is.  The memories are fading, so I don't recall why it
> is we do it this way, but I'm pretty sure it's correct the way it is.

dma_alloc_noncoherent is a fallback for boxes with coherency problems
which cannot allocate coherent memory.  The API asks for coherent memory
but the driver promises to behave correctly even if an incoherent area
is returned.  dma_alloc_coherent() requires only coherent memory.  The
pcx boxes (PA7200 and below) can't do the uncached trick for coherent
memory, so the API is designed for them.  The PCXL can, so we allocate
coherent memory even for dma_alloc_noncoherent() in that case (and nop
out the coherency handlers the driver uses).

James



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James Bottomley wrote:
> On Mon, 2008-02-11 at 17:23 +0100, Roel Kluin wrote:
>> duplicate pa11_dma_alloc_consistent; more appropriate appears
>> pa11_dma_alloc_noncoherent here. 
>>
>> Not tested, please confirm that this fix is correct
> 
> No, it looks completely incorrect to me.  What makes you think a pcxl
> box has a problem with coherency?

Ok, please ignore the patch then. It just appeared suspicious to me
that the function did exist, but the names assigned were different.

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> James Bottomley wrote:
> > On Mon, 2008-02-11 at 17:23 +0100, Roel Kluin wrote:
> >> duplicate pa11_dma_alloc_consistent; more appropriate appears
> >> pa11_dma_alloc_noncoherent here. 
> >>
> >> Not tested, please confirm that this fix is correct
> > 
> > No, it looks completely incorrect to me.  What makes you think a pcxl
> > box has a problem with coherency?
> 
> Ok, please ignore the patch then. It just appeared suspicious to me
> that the function did exist, but the names assigned were different.

How about a comment?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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John David Anglin wrote:
>> James Bottomley wrote:
>>> On Mon, 2008-02-11 at 17:23 +0100, Roel Kluin wrote:
>>>> duplicate pa11_dma_alloc_consistent; more appropriate appears
>>>> pa11_dma_alloc_noncoherent here. 
>>>>
>>>> Not tested, please confirm that this fix is correct
>>> No, it looks completely incorrect to me.  What makes you think a pcxl
>>> box has a problem with coherency?
>> Ok, please ignore the patch then. It just appeared suspicious to me
>> that the function did exist, but the names assigned were different.
> 
> How about a comment?

Based on James Bottomley's explanation maybe a comment like this?
---
Explain why dma_alloc_noncoherent is only used for boxes PA7200 and below

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
---
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 9448d4e..fc3325a 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -567,6 +567,10 @@ static void *fail_alloc_consistent(struct device *dev, size_t size,
 	return NULL;
 }
 
+/*
+ * dma_alloc_noncoherent is a fallback for boxes PA7200 and below which
+ * cannot allocate coherent memory.
+ */
 static void *pa11_dma_alloc_noncoherent(struct device *dev, size_t size,
 					  dma_addr_t *dma_handle, gfp_t flag)
 {
@@ -586,6 +590,10 @@ static void pa11_dma_free_noncoherent(struct device *dev, size_t size,
 	return;
 }
 
+/*
+ * PCXL allocates coherent memory even for dma_alloc_noncoherent() due to the
+ * uncached trick for coherent memory.
+ */
 struct hppa_dma_ops pcx_dma_ops = {
 	.dma_supported =	pa11_dma_supported,
 	.alloc_consistent =	fail_alloc_consistent,


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Subject: Re: [PATCH?][arch/parisc/kernel/pci-dma.c]
	pcxl_dma_ops.alloc_noncoherent
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On Mon, Feb 11, 2008 at 07:56:10PM +0100, Roel Kluin wrote:
> +/*
> + * dma_alloc_noncoherent is a fallback for boxes PA7200 and below which
> + * cannot allocate coherent memory.
> + */
>  static void *pa11_dma_alloc_noncoherent(struct device *dev, size_t size,
>  					  dma_addr_t *dma_handle, gfp_t flag)
>  {

Why? This is located below pcxl_dma_ops so its obviously only relevant
for pcx.

> @@ -586,6 +590,10 @@ static void pa11_dma_free_noncoherent(struct device *dev, size_t size,
>  	return;
>  }
>  
> +/*
> + * PCXL allocates coherent memory even for dma_alloc_noncoherent() due to the
> + * uncached trick for coherent memory.
> + */

This isn't correct either.

>  struct hppa_dma_ops pcx_dma_ops = {
>  	.dma_supported =	pa11_dma_supported,
>  	.alloc_consistent =	fail_alloc_consistent,
> 

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Subject: Re: [PATCH?][arch/parisc/kernel/pci-dma.c]
	pcxl_dma_ops.alloc_noncoherent = pa11_dma_alloc_consistent?
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On Mon, Feb 11, 2008 at 05:23:33PM +0100, Roel Kluin wrote:
>

How about just doing something like this:

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 9448d4e..63f9b7f 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -409,7 +409,7 @@ pcxl_dma_init(void)
 
 __initcall(pcxl_dma_init);
 
-static void * pa11_dma_alloc_consistent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag)
+static void * pcxl_dma_alloc_consistent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag)
 {
 	unsigned long vaddr;
 	unsigned long paddr;
@@ -435,7 +435,7 @@ static void * pa11_dma_alloc_consistent (struct device *dev, size_t size, dma_ad
 	return (void *)vaddr;
 }
 
-static void pa11_dma_free_consistent (struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle)
+static void pcxl_dma_free_consistent (struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle)
 {
 	int order;
 
@@ -548,9 +548,9 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
 
 struct hppa_dma_ops pcxl_dma_ops = {
 	.dma_supported =	pa11_dma_supported,
-	.alloc_consistent =	pa11_dma_alloc_consistent,
-	.alloc_noncoherent =	pa11_dma_alloc_consistent,
-	.free_consistent =	pa11_dma_free_consistent,
+	.alloc_consistent =	pcxl_dma_alloc_consistent,
+	.alloc_noncoherent =	pcxl_dma_alloc_consistent,
+	.free_consistent =	pcxl_dma_free_consistent,
 	.map_single =		pa11_dma_map_single,
 	.unmap_single =		pa11_dma_unmap_single,
 	.map_sg =		pa11_dma_map_sg,
@@ -567,7 +567,7 @@ static void *fail_alloc_consistent(struct device *dev, size_t size,
 	return NULL;
 }
 
-static void *pa11_dma_alloc_noncoherent(struct device *dev, size_t size,
+static void *pcx_dma_alloc_noncoherent(struct device *dev, size_t size,
 					  dma_addr_t *dma_handle, gfp_t flag)
 {
 	void *addr;
@@ -579,7 +579,7 @@ static void *pa11_dma_alloc_noncoherent(struct device *dev, size_t size,
 	return addr;
 }
 
-static void pa11_dma_free_noncoherent(struct device *dev, size_t size,
+static void pcx_dma_free_noncoherent(struct device *dev, size_t size,
 					void *vaddr, dma_addr_t iova)
 {
 	free_pages((unsigned long)vaddr, get_order(size));
@@ -589,8 +589,8 @@ static void pa11_dma_free_noncoherent(struct device *dev, size_t size,
 struct hppa_dma_ops pcx_dma_ops = {
 	.dma_supported =	pa11_dma_supported,
 	.alloc_consistent =	fail_alloc_consistent,
-	.alloc_noncoherent =	pa11_dma_alloc_noncoherent,
-	.free_consistent =	pa11_dma_free_noncoherent,
+	.alloc_noncoherent =	pcx_dma_alloc_noncoherent,
+	.free_consistent =	pcx_dma_free_noncoherent,
 	.map_single =		pa11_dma_map_single,
 	.unmap_single =		pa11_dma_unmap_single,
 	.map_sg =		pa11_dma_map_sg,

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> On Thu, Feb 07, 2008 at 03:33:07PM -0800, Christoph Lameter wrote:
> > On Thu, 7 Feb 2008, Kyle McMartin wrote:
> > 
> > > yes, it's in my batch of fixes.
> > 
> > <big sigh of relief> So I do not have to worry about it?
> > 
> 
> haha no. i don't expect people to have to untangle the mess of includes
> that is <asm-parisc/*.h> :)
> 
> cheers, kyle
> -
This move to define those symbol before including linux/mm.h seems to make the
drill:
--- include/asm-parisc/pgtable.h.Orig	2007-10-22 08:19:20.000000000 +0000
+++ include/asm-parisc/pgtable.h	2008-02-12 16:28:36.000000000 +0000
@@ -10,6 +10,12 @@
  * we simulate an x86-style page table for the linux mm code
  */
 
+extern  void *vmalloc_start;
+#define PCXL_DMA_MAP_SIZE   (8*1024*1024)
+#define VMALLOC_START   ((unsigned long)vmalloc_start)
+/* this is a fixmap remnant, see fixmap.h */
+#define VMALLOC_END	(KERNEL_MAP_END)
+
 #include <linux/mm.h>		/* for vm_area_struct */
 #include <linux/bitops.h>
 #include <asm/processor.h>
@@ -116,14 +122,6 @@
 
 #define FIRST_USER_ADDRESS	0
 
-#ifndef __ASSEMBLY__
-extern  void *vmalloc_start;
-#define PCXL_DMA_MAP_SIZE   (8*1024*1024)
-#define VMALLOC_START   ((unsigned long)vmalloc_start)
-/* this is a fixmap remnant, see fixmap.h */
-#define VMALLOC_END	(KERNEL_MAP_END)
-#endif
-
 /* NB: The tlb miss handlers make certain assumptions about the order */
 /*     of the following bits, so be careful (One example, bits 25-31  */
 /*     are moved together in one instruction).                        */
=== <> ====

But next compile error appears there:

In file included from
/CAD/linux-2.6.25-rc1-pa-git-20080212/arch/parisc/mm/init.c:26:
include2/asm/pgalloc.h:142: error: conflicting types for 'pte_free_kernel'
include2/asm/pgalloc.h:137: error: previous definition of 'pte_free_kernel'
was here
include2/asm/pgalloc.h: In function 'pte_free_kernel':
include2/asm/pgalloc.h:144: error: expected ')' before ';' token
include2/asm/pgalloc.h:145: error: too few arguments to function 'pte_free_kernel'
include2/asm/pgalloc.h:145: error: expected ';' before '}' token
make[2]: *** [arch/parisc/mm/init.o] Error 1
make[1]: *** [arch/parisc/mm] Error 2
make: *** [sub-make] Error 2


and in include/asm-parisc/pgalloc.h we can read:

static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
        free_page((unsigned long)pte);
}

static inline void pte_free_kernel(struct mm_struct *mm, struct page *pte)
{
        pgtable_page_dtor(pte);
        pte_free_kernel(page_address((pte));
}

i.e. 2 time the definition of the same function: which is the right definition?

Cheers,
    r.

---
Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
http://www.scarlet.be/


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> > On Thu, Feb 07, 2008 at 03:33:07PM -0800, Christoph Lameter wrote:
> > > On Thu, 7 Feb 2008, Kyle McMartin wrote:
> > > 
> > > > yes, it's in my batch of fixes.
> > > 
> > > <big sigh of relief> So I do not have to worry about it?
> > > 
> > 
> > haha no. i don't expect people to have to untangle the mess of includes
> > that is <asm-parisc/*.h> :)
> > 
> > cheers, kyle
> > -
> This move to define those symbol before including linux/mm.h seems to make the
> drill:
> --- include/asm-parisc/pgtable.h.Orig	2007-10-22 08:19:20.000000000 +0000
> +++ include/asm-parisc/pgtable.h	2008-02-12 16:28:36.000000000 +0000
> @@ -10,6 +10,12 @@
>   * we simulate an x86-style page table for the linux mm code
>   */
>  
> +extern  void *vmalloc_start;
> +#define PCXL_DMA_MAP_SIZE   (8*1024*1024)
> +#define VMALLOC_START   ((unsigned long)vmalloc_start)
> +/* this is a fixmap remnant, see fixmap.h */
> +#define VMALLOC_END	(KERNEL_MAP_END)
> +
>  #include <linux/mm.h>		/* for vm_area_struct */
>  #include <linux/bitops.h>
>  #include <asm/processor.h>
> @@ -116,14 +122,6 @@
>  
>  #define FIRST_USER_ADDRESS	0
>  
> -#ifndef __ASSEMBLY__
> -extern  void *vmalloc_start;
> -#define PCXL_DMA_MAP_SIZE   (8*1024*1024)
> -#define VMALLOC_START   ((unsigned long)vmalloc_start)
> -/* this is a fixmap remnant, see fixmap.h */
> -#define VMALLOC_END	(KERNEL_MAP_END)
> -#endif
> -
>  /* NB: The tlb miss handlers make certain assumptions about the order */
>  /*     of the following bits, so be careful (One example, bits 25-31  */
>  /*     are moved together in one instruction).                        */
> === <> ====
> 
> But next compile error appears there:
> 
> In file included from
> /CAD/linux-2.6.25-rc1-pa-git-20080212/arch/parisc/mm/init.c:26:
> include2/asm/pgalloc.h:142: error: conflicting types for 'pte_free_kernel'
> include2/asm/pgalloc.h:137: error: previous definition of 'pte_free_kernel'
> was here
> include2/asm/pgalloc.h: In function 'pte_free_kernel':
> include2/asm/pgalloc.h:144: error: expected ')' before ';' token
> include2/asm/pgalloc.h:145: error: too few arguments to function
'pte_free_kernel'
> include2/asm/pgalloc.h:145: error: expected ';' before '}' token
> make[2]: *** [arch/parisc/mm/init.o] Error 1
> make[1]: *** [arch/parisc/mm] Error 2
> make: *** [sub-make] Error 2
> 
> 
> and in include/asm-parisc/pgalloc.h we can read:
> 
> static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
> {
>         free_page((unsigned long)pte);
> }
> 
> static inline void pte_free_kernel(struct mm_struct *mm, struct page *pte)
> {
>         pgtable_page_dtor(pte);
>         pte_free_kernel(page_address((pte));
> }
> 
Well may be is it much more what parisc need?
--- ./include/asm-parisc/pgalloc.h.Orig	2008-02-11 07:31:24.000000000 +0000
+++ ./include/asm-parisc/pgalloc.h	2008-02-13 10:02:53.000000000 +0000
@@ -138,10 +138,10 @@
 	free_page((unsigned long)pte);
 }
 
-static inline void pte_free_kernel(struct mm_struct *mm, struct page *pte)
+static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
 {
 	pgtable_page_dtor(pte);
-	pte_free_kernel(page_address((pte));
+	pte_free_kernel(mm, page_address((pte)));
 }
 
 #define check_pgt_cache()	do { } while (0)
=== <> ===

And btw some more small hunk:
    - sys_timerfd was gone so
--- ./arch/parisc/kernel/syscall_table.S.Orig	2007-10-22 08:18:54.000000000 +0000
+++ ./arch/parisc/kernel/syscall_table.S	2008-02-13 12:00:08.000000000 +0000
@@ -401,7 +401,7 @@
 	ENTRY_COMP(kexec_load)		/* 300 */
 	ENTRY_COMP(utimensat)
 	ENTRY_COMP(signalfd)
-	ENTRY_COMP(timerfd)
+	ENTRY_SAME(ni_syscall)		/* 303 (timerfd -- dead) */
 	ENTRY_SAME(eventfd)
 	ENTRY_COMP(fallocate)		/* 305 */
 
=== <> ===

    - some lake of changes of kset to kobj:
--- ./drivers/parisc/pdc_stable.c.Orig	2008-01-28 07:09:26.000000000 +0000
+++ ./drivers/parisc/pdc_stable.c	2008-02-13 11:22:16.000000000 +0000
@@ -829,7 +829,7 @@
 				   struct kobj_attribute *attr,
 				   const char *buf, size_t count)
 {
-	return pdcs_auto_write(kset, attr, buf, count, PF_AUTOBOOT);
+	return pdcs_auto_write(kobj, attr, buf, count, PF_AUTOBOOT);
 }
 
 /**
@@ -845,7 +845,7 @@
 				     struct kobj_attribute *attr,
 				     const char *buf, size_t count)
 {
-	return pdcs_auto_write(kset, attr, buf, count, PF_AUTOSEARCH);
+	return pdcs_auto_write(kobj, attr, buf, count, PF_AUTOSEARCH);
 }
 
 /**
@@ -1066,7 +1066,7 @@
 	}
 
 	/* Don't forget the root entries */
-	error = sysfs_create_group(stable_kobj, pdcs_attr_group);
+	error = sysfs_create_group(stable_kobj, &pdcs_attr_group);
 
 	/* register the paths kset as a child of the stable kset */
 	paths_kset = kset_create_and_add("paths", NULL, stable_kobj);
=== <> ===

And the kernel build, but I don't yet try to boot it...

Hth,
r.
---
Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
http://www.scarlet.be/


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On Wed, Feb 13, 2008 at 07:49:12AM +0100, rubisher wrote:
> --- include/asm-parisc/pgtable.h.Orig	2007-10-22 08:19:20.000000000 +0000
> +++ include/asm-parisc/pgtable.h	2008-02-12 16:28:36.000000000 +0000
> +extern  void *vmalloc_start;
> +#define PCXL_DMA_MAP_SIZE   (8*1024*1024)
> +#define VMALLOC_START   ((unsigned long)vmalloc_start)
> +/* this is a fixmap remnant, see fixmap.h */
> +#define VMALLOC_END	(KERNEL_MAP_END)
> +

i moved this to fixmap.h, since i think it makes more sense there,
really.

> static inline void pte_free_kernel(struct mm_struct *mm, struct page *pte)
> {
>         pgtable_page_dtor(pte);
>         pte_free_kernel(page_address((pte));
> }
> 

this is a stunning bit of ignorant patching courtesy of
2f569afd9ced9ebec9a6eb3dbf6f83429be0a7b4 which:

-#define pte_free(mm, page) pte_free_kernel(page_address(page))
+static inline void pte_free_kernel(struct mm_struct *mm, struct page
*pte)
+{
+       pgtable_page_dtor(pte);
+       pte_free_kernel(page_address((pte));
+}

only wrong on *two* counts.

anyway, fixed this up. sigh.

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On Wed, Feb 13, 2008 at 01:42:10PM +0100, rubisher wrote:
>     - some lake of changes of kset to kobj:

thanks, i don't build this driver, somehow it made its way out of my
configs. patch looks correct though. applied.

> --- ./drivers/parisc/pdc_stable.c.Orig	2008-01-28 07:09:26.000000000 +0000
> +++ ./drivers/parisc/pdc_stable.c	2008-02-13 11:22:16.000000000 +0000
> @@ -829,7 +829,7 @@
>  				   struct kobj_attribute *attr,
>  				   const char *buf, size_t count)
>  {
> -	return pdcs_auto_write(kset, attr, buf, count, PF_AUTOBOOT);
> +	return pdcs_auto_write(kobj, attr, buf, count, PF_AUTOBOOT);
>  }
>  
>  /**
> @@ -845,7 +845,7 @@
>  				     struct kobj_attribute *attr,
>  				     const char *buf, size_t count)
>  {
> -	return pdcs_auto_write(kset, attr, buf, count, PF_AUTOSEARCH);
> +	return pdcs_auto_write(kobj, attr, buf, count, PF_AUTOSEARCH);
>  }
>  
>  /**
> @@ -1066,7 +1066,7 @@
>  	}
>  
>  	/* Don't forget the root entries */
> -	error = sysfs_create_group(stable_kobj, pdcs_attr_group);
> +	error = sysfs_create_group(stable_kobj, &pdcs_attr_group);
>  
>  	/* register the paths kset as a child of the stable kset */
>  	paths_kset = kset_create_and_add("paths", NULL, stable_kobj);
> === <> ===
> 
> And the kernel build, but I don't yet try to boot it...
> 
> Hth,
> r.
> ---
> Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
> http://www.scarlet.be/
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

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The functions time_before, time_before_eq, time_after, and time_after_e=
q are more robust for comparing jiffies against other values.

So following patch implements usage of the time_after() macro, defined =
at linux/jiffies.h, which deals with wrapping correctly

Cc: linux-parisc@vger.kernel.org
Signed-off-by: S.=C3=87a=C4=9Flar Onur <caglar@pardus.org.tr>
---
 arch/parisc/kernel/unaligned.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unalig=
ned.c
index aebf3c1..19b8a79 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -460,7 +460,7 @@ void handle_unaligned(struct pt_regs *regs)
 			goto force_sigbus;
 		}
=20
-		if (unaligned_count > 5 && jiffies - last_time > 5*HZ) {
+		if (unaligned_count > 5 && time_after(jiffies, last_time + 5 * HZ)) =
{
 			unaligned_count =3D 0;
 			last_time =3D jiffies;
 		}
--=20
1.5.3.7


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> On Wed, Feb 13, 2008 at 07:49:12AM +0100, rubisher wrote:
> > --- include/asm-parisc/pgtable.h.Orig	2007-10-22 08:19:20.000000000 +0000
> > +++ include/asm-parisc/pgtable.h	2008-02-12 16:28:36.000000000 +0000
> > +extern  void *vmalloc_start;
> > +#define PCXL_DMA_MAP_SIZE   (8*1024*1024)
> > +#define VMALLOC_START   ((unsigned long)vmalloc_start)
> > +/* this is a fixmap remnant, see fixmap.h */
> > +#define VMALLOC_END	(KERNEL_MAP_END)
> > +
> 
> i moved this to fixmap.h, since i think it makes more sense there,
> really.
> 
Nice to me too ;-)

(btw where can I grab your latest update. I didn't yet see in your git
linux-2.6-snaps or any other place I know)?

Tx,
    r.
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> On Wed, Feb 13, 2008 at 01:42:10PM +0100, rubisher wrote:
> >     - some lake of changes of kset to kobj:
> 
> thanks, i don't build this driver, somehow it made its way out of my
> configs. patch looks correct though. applied.
> 
Cool ;-)

Btw, it boot fine to me on b2k and d380 running all up 32bit kernels ;-)

Cheers,
    r.
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From: rubisher <rubisher@scarlet.be>
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Subject: How to grab begining/end functions' address? [Wa: 'Trace patches
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Grant Grundler wrote:
> On Tue, Jan 22, 2008 at 02:35:21PM +0100, rubisher wrote:
>> Btw, a while back, I dream to use relayfs to grab debug info.
>> (<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-April/053237.html>)
>>
>> Somebody else write it:
>> <http://lkml.org/lkml/2007/11/13/208>
>>
>> Obviously, I have to instrument things manually but I test it succesfully.
>> Here is already some primarily data test:
>> [snip]
>> :1201001199222127606:ccio_map_single_1:ccio_map_single() 0x1eb91896 ->
>> 0x63b4896 size: 0x1000
>> :1201001199222203288:ccio_map_single_2: pdir 1fcb1da0 038100000eb91017
>> :1201001199222391065:ccio_map_single_1:ccio_map_single() 0x1febc096 ->
>> 0x63b5096 size: 0x1000
> ...
>> Exciting results?
> 
> Yes! Nice!
> 
>> (just what would give me DEBUG_RUN() printk() but without
>>  degrading system performance)
> 
> I don't believe that. :)
> Measure the CPU utilization and/or compare pktgen performance with
> and without the tracing compiled into the kernel.
> 
> However, that doesn't mean this is useless. This is alot better than
> rolling our own "light weight" tracing mechanism and it's certainly
> alot better than using printk's to debug DMA issues (as long as
> the system doesn't crash - e.g. HPMC).
> 
> hth,
> grant
> 
>> I still have to had some more DEBUG_RUN_SG() stuff and hope to be able to
>> collect more.
>>
Hello Grant,

Has far as the gcc builtin instrument-functions doesn't work as I expected, I would like to grab manually the address of the 
functions' begin and end like something:
void foo(){
foo_start:
	printk ("%s() start at %p.\n, __FUNCTION__, ???ADDRESS_OF???(foo_start);
[snip]
foo_end:
	printk ("%s() start at %p.\n, __FUNCTION__, ???ADDRESS_OF???(foo_end);
};

It seems to me that I read it something like this in the past but no means to remember how to do it.
Can you help me to refresh my mind?

Tia,
	r.

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On Sun, Feb 17, 2008 at 10:52:28AM +0000, rubisher wrote:
> Has far as the gcc builtin instrument-functions doesn't work as I expected, 
> I would like to grab manually the address of the functions' begin and end 
> like something:
> void foo(){
> foo_start:
> 	printk ("%s() start at %p.\n, __FUNCTION__, 
> 	???ADDRESS_OF???(foo_start);
> [snip]
> foo_end:
> 	printk ("%s() start at %p.\n, __FUNCTION__, 
> 	???ADDRESS_OF???(foo_end);
> };
> 
> It seems to me that I read it something like this in the past but no means 
> to remember how to do it.

The kernel already has code to do this -- look at the stack backtraces.
They show addresses, function names and length of the function.  Start
by looking at BUG() and trace through to find out how the kernel does
this.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."

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On Wed, Feb 13, 2008 at 01:42:10PM +0100, rubisher wrote:
>

Can I get your Signed-off-by for this, Joel? (I assume you are Joel :)

cheers, Kyle

>     - some lake of changes of kset to kobj:
> --- ./drivers/parisc/pdc_stable.c.Orig	2008-01-28 07:09:26.000000000 +0000
> +++ ./drivers/parisc/pdc_stable.c	2008-02-13 11:22:16.000000000 +0000
> @@ -829,7 +829,7 @@
>  				   struct kobj_attribute *attr,
>  				   const char *buf, size_t count)
>  {
> -	return pdcs_auto_write(kset, attr, buf, count, PF_AUTOBOOT);
> +	return pdcs_auto_write(kobj, attr, buf, count, PF_AUTOBOOT);
>  }
>  
>  /**
> @@ -845,7 +845,7 @@
>  				     struct kobj_attribute *attr,
>  				     const char *buf, size_t count)
>  {
> -	return pdcs_auto_write(kset, attr, buf, count, PF_AUTOSEARCH);
> +	return pdcs_auto_write(kobj, attr, buf, count, PF_AUTOSEARCH);
>  }
>  
>  /**
> @@ -1066,7 +1066,7 @@
>  	}
>  
>  	/* Don't forget the root entries */
> -	error = sysfs_create_group(stable_kobj, pdcs_attr_group);
> +	error = sysfs_create_group(stable_kobj, &pdcs_attr_group);
>  
>  	/* register the paths kset as a child of the stable kset */
>  	paths_kset = kset_create_and_add("paths", NULL, stable_kobj);
> === <> ===
> 
> And the kernel build, but I don't yet try to boot it...
> 
> Hth,
> r.
> ---
> Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
> http://www.scarlet.be/
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
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> 

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> On Wed, Feb 13, 2008 at 01:42:10PM +0100, rubisher wrote:
> >
> 
> Can I get your Signed-off-by for this, Joel? (I assume you are Joel :)
> 
Yes the previous account seems to be a bit old and look more and more like a
gc; I so take the opportunity of ml's change to use another pseudo ;-)

That said those 2 hunks help build (even boot my 32bit up kernel on b2k and
d380 boxes):

Signed-off-by: Joel Soete <soete dot joel at scarlet dot be>

(any advise is welcome obviously ;-)

r.

> cheers, Kyle
> 
> >     - some lake of changes of kset to kobj:
> > --- ./drivers/parisc/pdc_stable.c.Orig	2008-01-28 07:09:26.000000000 +0000
> > +++ ./drivers/parisc/pdc_stable.c	2008-02-13 11:22:16.000000000 +0000
> > @@ -829,7 +829,7 @@
> >  				   struct kobj_attribute *attr,
> >  				   const char *buf, size_t count)
> >  {
> > -	return pdcs_auto_write(kset, attr, buf, count, PF_AUTOBOOT);
> > +	return pdcs_auto_write(kobj, attr, buf, count, PF_AUTOBOOT);
> >  }
> >  
> >  /**
> > @@ -845,7 +845,7 @@
> >  				     struct kobj_attribute *attr,
> >  				     const char *buf, size_t count)
> >  {
> > -	return pdcs_auto_write(kset, attr, buf, count, PF_AUTOSEARCH);
> > +	return pdcs_auto_write(kobj, attr, buf, count, PF_AUTOSEARCH);
> >  }
> >  
> >  /**
> > @@ -1066,7 +1066,7 @@
> >  	}
> >  
> >  	/* Don't forget the root entries */
> > -	error = sysfs_create_group(stable_kobj, pdcs_attr_group);
> > +	error = sysfs_create_group(stable_kobj, &pdcs_attr_group);
> >  
> >  	/* register the paths kset as a child of the stable kset */
> >  	paths_kset = kset_create_and_add("paths", NULL, stable_kobj);
> > === <> ===
> > 
> > And the kernel build, but I don't yet try to boot it...
> > 
> > Hth,
> > r.
> > ---
> > Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
> > http://www.scarlet.be/
> > 
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> > 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 
---
Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
http://www.scarlet.be/


From - Thu Nov 08 21:01:58 2018
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On Mon, Feb 18, 2008 at 11:32:58AM +0100, rubisher wrote:
> > On Wed, Feb 13, 2008 at 01:42:10PM +0100, rubisher wrote:
> > >
> > 
> > Can I get your Signed-off-by for this, Joel? (I assume you are Joel :)
> > 
> Yes the previous account seems to be a bit old and look more and more like a
> gc; I so take the opportunity of ml's change to use another pseudo ;-)
> 
> That said those 2 hunks help build (even boot my 32bit up kernel on b2k and
> d380 boxes):
>

ok, good to know.
 
> Signed-off-by: Joel Soete <soete dot joel at scarlet dot be>
> 

great, thanks!

> (any advise is welcome obviously ;-)
> 

cheers, kyle

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Subject: Re: [patch 0/4] RFC: PCI: consolidate several
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On Mon, Feb 18, 2008 at 09:39:52PM -0700, Bjorn Helgaas wrote:
>     - PA-RISC always turns on SERR and PARITY, which no other arch does
> 

I suspect this is because we set the host bus adapters to hard fail
(HPMC) on detecting an error, since we don't want to
	1) return possibly bogus (-1) data
	2) write code to use the (undocumented) error detection

More to the point, I suspect it's extra paranoia because firmware has
set it up this way. I put in a quick hack to test whether those bits
were set, and they came enabled that way by firmware on all the boxes I
tested. (Disclaimer, I didn't have any easily accessible boxes with
add-on cards installed, so firmware might just set it up for core
devices, and we're making sure its set everywhere.)

cheers, Kyle

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Subject: Re: [patch 1/4] PCI: split pcibios_enable_resources() out of
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On Mon, 2008-02-18 at 21:39 -0700, Bjorn Helgaas wrote:
> plain text document attachment (make-pcibios_enable_resources)
> On x86, pcibios_enable_device() is factored into
> pcibios_enable_resources() and pcibios_enable_irq().  On several other
> architectures, the functional equivalent of pcibios_enable_resources()
> is expanded directly inside pcibios_enable_device().
> 
> This splits these pcibios_enable_device() implementations to make them
> more similar to the x86 implementation.
> 
> There should be no functional change from this patch.
> 
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

> 
> ---
>  arch/alpha/kernel/pci.c          |    8 +++++++-
>  arch/arm/kernel/bios32.c         |    9 +++++++--
>  arch/parisc/kernel/pci.c         |    6 +++++-
>  arch/powerpc/kernel/pci-common.c |   14 +++++++++-----
>  arch/sh/drivers/pci/pci.c        |    7 ++++++-
>  arch/sparc64/kernel/pci.c        |    7 ++++++-
>  arch/v850/kernel/rte_mb_a_pci.c  |    7 ++++++-
>  7 files changed, 46 insertions(+), 12 deletions(-)
> 
> Index: work6/arch/alpha/kernel/pci.c
> ===================================================================
> --- work6.orig/arch/alpha/kernel/pci.c	2008-02-18 10:43:50.000000000 -0700
> +++ work6/arch/alpha/kernel/pci.c	2008-02-18 10:45:14.000000000 -0700
> @@ -370,7 +370,7 @@
>  #endif
>  
>  int
> -pcibios_enable_device(struct pci_dev *dev, int mask)
> +pcibios_enable_resources(struct pci_dev *dev, int mask)
>  {
>  	u16 cmd, oldcmd;
>  	int i;
> @@ -396,6 +396,12 @@
>  	return 0;
>  }
>  
> +int
> +pcibios_enable_device(struct pci_dev *dev, int mask)
> +{
> +	return pcibios_enable_resources(dev, mask);
> +}
> +
>  /*
>   *  If we set up a device for bus mastering, we need to check the latency
>   *  timer as certain firmware forgets to set it properly, as seen
> Index: work6/arch/arm/kernel/bios32.c
> ===================================================================
> --- work6.orig/arch/arm/kernel/bios32.c	2008-02-18 10:43:50.000000000 -0700
> +++ work6/arch/arm/kernel/bios32.c	2008-02-18 10:45:14.000000000 -0700
> @@ -655,10 +655,10 @@
>  }
>  
>  /**
> - * pcibios_enable_device - Enable I/O and memory.
> + * pcibios_enable_resources - Enable I/O and memory.
>   * @dev: PCI device to be enabled
>   */
> -int pcibios_enable_device(struct pci_dev *dev, int mask)
> +int pcibios_enable_resources(struct pci_dev *dev, int mask)
>  {
>  	u16 cmd, old_cmd;
>  	int idx;
> @@ -697,6 +697,11 @@
>  	return 0;
>  }
>  
> +int pcibios_enable_device(struct pci_dev *dev, int mask)
> +{
> +	return pcibios_enable_resources(dev, mask);
> +}
> +
>  int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
>  			enum pci_mmap_state mmap_state, int write_combine)
>  {
> Index: work6/arch/parisc/kernel/pci.c
> ===================================================================
> --- work6.orig/arch/parisc/kernel/pci.c	2008-02-18 10:43:50.000000000 -0700
> +++ work6/arch/parisc/kernel/pci.c	2008-02-18 10:45:14.000000000 -0700
> @@ -285,7 +285,7 @@
>   * Drivers that do not need parity (eg graphics and possibly networking)
>   * can clear these bits if they want.
>   */
> -int pcibios_enable_device(struct pci_dev *dev, int mask)
> +int pcibios_enable_resources(struct pci_dev *dev, int mask)
>  {
>  	u16 cmd;
>  	int idx;
> @@ -317,6 +317,10 @@
>  	return 0;
>  }
>  
> +int pcibios_enable_device(struct pci_dev *dev, int mask)
> +{
> +	return pcibios_enable_resources(dev, mask);
> +}
>  
>  /* PA-RISC specific */
>  void pcibios_register_hba(struct pci_hba_data *hba)
> Index: work6/arch/powerpc/kernel/pci-common.c
> ===================================================================
> --- work6.orig/arch/powerpc/kernel/pci-common.c	2008-02-18 10:43:50.000000000 -0700
> +++ work6/arch/powerpc/kernel/pci-common.c	2008-02-18 10:45:14.000000000 -0700
> @@ -1153,16 +1153,12 @@
>  EXPORT_SYMBOL_GPL(pcibios_claim_one_bus);
>  #endif /* CONFIG_HOTPLUG */
>  
> -int pcibios_enable_device(struct pci_dev *dev, int mask)
> +int pcibios_enable_resources(struct pci_dev *dev, int mask)
>  {
>  	u16 cmd, old_cmd;
>  	int idx;
>  	struct resource *r;
>  
> -	if (ppc_md.pcibios_enable_device_hook)
> -		if (ppc_md.pcibios_enable_device_hook(dev))
> -			return -EINVAL;
> -
>  	pci_read_config_word(dev, PCI_COMMAND, &cmd);
>  	old_cmd = cmd;
>  	for (idx = 0; idx < PCI_NUM_RESOURCES; idx++) {
> @@ -1193,3 +1189,11 @@
>  	return 0;
>  }
>  
> +int pcibios_enable_device(struct pci_dev *dev, int mask)
> +{
> +	if (ppc_md.pcibios_enable_device_hook)
> +		if (ppc_md.pcibios_enable_device_hook(dev))
> +			return -EINVAL;
> +
> +	return pcibios_enable_resources(dev, mask);
> +}
> Index: work6/arch/sh/drivers/pci/pci.c
> ===================================================================
> --- work6.orig/arch/sh/drivers/pci/pci.c	2008-02-18 10:43:50.000000000 -0700
> +++ work6/arch/sh/drivers/pci/pci.c	2008-02-18 10:45:14.000000000 -0700
> @@ -131,7 +131,7 @@
>  	}
>  }
>  
> -int pcibios_enable_device(struct pci_dev *dev, int mask)
> +int pcibios_enable_resources(struct pci_dev *dev, int mask)
>  {
>  	u16 cmd, old_cmd;
>  	int idx;
> @@ -163,6 +163,11 @@
>  	return 0;
>  }
>  
> +int pcibios_enable_device(struct pci_dev *dev, int mask)
> +{
> +	return pcibios_enable_resources(dev, mask);
> +}
> +
>  /*
>   *  If we set up a device for bus mastering, we need to check and set
>   *  the latency timer as it may not be properly set.
> Index: work6/arch/sparc64/kernel/pci.c
> ===================================================================
> --- work6.orig/arch/sparc64/kernel/pci.c	2008-02-18 10:43:50.000000000 -0700
> +++ work6/arch/sparc64/kernel/pci.c	2008-02-18 10:45:14.000000000 -0700
> @@ -946,7 +946,7 @@
>  {
>  }
>  
> -int pcibios_enable_device(struct pci_dev *dev, int mask)
> +int pcibios_enable_resources(struct pci_dev *dev, int mask)
>  {
>  	u16 cmd, oldcmd;
>  	int i;
> @@ -976,6 +976,11 @@
>  	return 0;
>  }
>  
> +int pcibios_enable_device(struct pci_dev *dev, int mask)
> +{
> +	return pcibios_enable_resources(dev, mask);
> +}
> +
>  void pcibios_resource_to_bus(struct pci_dev *pdev, struct pci_bus_region *region,
>  			     struct resource *res)
>  {
> Index: work6/arch/v850/kernel/rte_mb_a_pci.c
> ===================================================================
> --- work6.orig/arch/v850/kernel/rte_mb_a_pci.c	2008-02-18 10:43:50.000000000 -0700
> +++ work6/arch/v850/kernel/rte_mb_a_pci.c	2008-02-18 10:45:14.000000000 -0700
> @@ -217,7 +217,7 @@
>  }
>  
>  
> -int __nomods_init pcibios_enable_device (struct pci_dev *dev, int mask)
> +int __nomods_init pcibios_enable_resources (struct pci_dev *dev, int mask)
>  {
>  	u16 cmd, old_cmd;
>  	int idx;
> @@ -245,6 +245,11 @@
>  	return 0;
>  }
>  
> +int __nomods_init pcibios_enable_device (struct pci_dev *dev, int mask)
> +{
> +	return pcibios_enable_resources(dev, mask);
> +}
> +
>  
>  /* Resource allocation.  */
>  static void __devinit pcibios_assign_resources (void)
> 


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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [patch 2/4] ppc: make pcibios_enable_device() use
	pcibios_enable_resources()
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On Mon, 2008-02-18 at 21:39 -0700, Bjorn Helgaas wrote:
> plain text document attachment (ppc-pcibios_enable_resources)
> pcibios_enable_device() has an almost verbatim copy of
> pcibios_enable_resources(), (the only difference is that
> pcibios_enable_resources() turns on PCI_COMMAND_MEMORY if
> there's a ROM resource).
> 
> The duplication might be intentional, but I don't see any callers
> of pcibios_enable_resources() on ppc, so I think it's more
> likely a historical accident.
> 
> This patch removes the duplication, making pcibios_enable_device()
> simply call pcibios_enable_resources() as x86 does.
> 
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>

Ack. arch/ppc is being phased out soon anyway.

Ben.

> 
> Index: work6/arch/ppc/kernel/pci.c
> ===================================================================
> --- work6.orig/arch/ppc/kernel/pci.c	2008-02-18 10:43:50.000000000 -0700
> +++ work6/arch/ppc/kernel/pci.c	2008-02-18 11:31:23.000000000 -0700
> @@ -785,33 +785,11 @@
>  
>  int pcibios_enable_device(struct pci_dev *dev, int mask)
>  {
> -	u16 cmd, old_cmd;
> -	int idx;
> -	struct resource *r;
> -
>  	if (ppc_md.pcibios_enable_device_hook)
>  		if (ppc_md.pcibios_enable_device_hook(dev, 0))
>  			return -EINVAL;
> -		
> -	pci_read_config_word(dev, PCI_COMMAND, &cmd);
> -	old_cmd = cmd;
> -	for (idx=0; idx<6; idx++) {
> -		r = &dev->resource[idx];
> -		if (r->flags & IORESOURCE_UNSET) {
> -			printk(KERN_ERR "PCI: Device %s not available because of resource collisions\n", pci_name(dev));
> -			return -EINVAL;
> -		}
> -		if (r->flags & IORESOURCE_IO)
> -			cmd |= PCI_COMMAND_IO;
> -		if (r->flags & IORESOURCE_MEM)
> -			cmd |= PCI_COMMAND_MEMORY;
> -	}
> -	if (cmd != old_cmd) {
> -		printk("PCI: Enabling device %s (%04x -> %04x)\n",
> -		       pci_name(dev), old_cmd, cmd);
> -		pci_write_config_word(dev, PCI_COMMAND, cmd);
> -	}
> -	return 0;
> +
> +	return pcibios_enable_resources(dev, mask);
>  }
>  
>  struct pci_controller*
> 


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Subject: Re: [patch 4/4] RFC: PCI: consolidate several
	pcibios_enable_resources() implementations
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On Mon, 2008-02-18 at 21:39 -0700, Bjorn Helgaas wrote:
>     powerpc: has a different collision check at (5)

I've always found the collision check dodgy. I tend to want to keep
the way powerpc does it here.

pci_enable_device() should only enable resources that have successfully
been added to the resource tree (that have passed all the collision
check etc...). There is a simple & clear indication of that: res->parent
is non-NULL. I think that is a better check than the test x86 does on
start and end.

That is, whatever the arch code decides to use to decide whether
resources are assigned by firmware or by the first pass assignment code
or not and collide or not, once that phase is finished (which is the
case when calling pcibios_enable_device(), having the resource in the
resource-tree or not is, I believe, the proper way to test whether it's
a useable resource.

Ben.



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> Index: work6/drivers/pci/Makefile
> ===================================================================
> --- work6.orig/drivers/pci/Makefile	2008-02-18 21:16:36.000000000 -0700
> +++ work6/drivers/pci/Makefile	2008-02-18 21:16:38.000000000 -0700
> @@ -2,7 +2,7 @@
>  # Makefile for the PCI bus specific drivers.
>  #
>  
> -obj-y		+= access.o bus.o probe.o remove.o pci.o quirks.o \
> +obj-y		+= access.o bios.o bus.o probe.o remove.o pci.o quirks.o \
>  			pci-driver.o search.o pci-sysfs.o rom.o setup-res.o
>  obj-$(CONFIG_PROC_FS) += proc.o
>  
> Index: work6/drivers/pci/bios.c
> ===================================================================
> --- /dev/null	1970-01-01 00:00:00.000000000 +0000
> +++ work6/drivers/pci/bios.c	2008-02-18 21:16:38.000000000 -070
                        ^^^^^^

Yuck :-)

Please, don't call this bios ... whatever is in this file really has
nothing to do with a "BIOS" in any shape or form :-) I know we used to
call those things pcibios_* but that's really historical...

If you want to make clear it's for "utilities" that can be overriden
by the arch, maybe call it utils.c, or just stick the function in
pci.c, or setup-res.c

Ben.



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On Mon, Feb 18, 2008 at 09:39:56PM -0700, Bjorn Helgaas wrote:
>     parisc: checks DEVICE_COUNT_RESOURCE (12) instead of PCI_NUM_RESOURCES
>	(11) resources at (1),
>

Good catch.

> has no IORESOURCE_{IO,MEM} check at (3),

What else can it be?

> 	has no PCI_ROM_RESOURCE check at (4), has no collision check at (5)
> 	always turns on PCI_COMMAND_SERR | PCI_COMMAND_PARITY at (6),
> 	writes cmd even if unchanged at (7)
> 

I'll have to check into 4 & 5, there might be a good reason for it. For
instance on a four port HP ethernet card (pci-pci bridge + 4 tulips) all
4 of the rom resources are mapped to the same address, which afaict, is
allowed but breaks things in mysterious and subtle ways.

That said, the parisc pci code is a rats nest...

cheers, Kyle

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On Mon, Feb 18, 2008 at 09:39:52PM -0700, Bjorn Helgaas wrote:
> There are many implementations of pcibios_enable_resources() that differ
> in minor ways that look more like bugs than architectural differences.
> This patch series consolidates most of them to use the x86 version.
> 
> This series is for discussion only at this point.  I'm interested in
> feedback about whether any of the differences are "real" and need to
> be preserved.
> 
> ARM and PA-RISC, in particular, have interesting differences:
>     - ARM always enables bridge devices, which no other arch does

ARM does this because there is nothing else which would do that - which
means devices behind bridges would be completely inaccessible.

>     - PA-RISC always turns on SERR and PARITY, which no other arch does

ARM also does this, unless pdev_bad_for_parity(dev) is true.  See
ARMs pcibios_fixup_bus().

> Should other arches do the same thing, or are these somehow related to
> ARM and PA-RISC architecture?

I suspect they're architecture specific; I wouldn't like to do either
on x86, but they're either required or preferred on ARM.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:

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On Tue, 2008-02-19 at 08:09 +0000, Russell King wrote:
> On Mon, Feb 18, 2008 at 09:39:52PM -0700, Bjorn Helgaas wrote:
> > There are many implementations of pcibios_enable_resources() that differ
> > in minor ways that look more like bugs than architectural differences.
> > This patch series consolidates most of them to use the x86 version.
> > 
> > This series is for discussion only at this point.  I'm interested in
> > feedback about whether any of the differences are "real" and need to
> > be preserved.
> > 
> > ARM and PA-RISC, in particular, have interesting differences:
> >     - ARM always enables bridge devices, which no other arch does
> 
> ARM does this because there is nothing else which would do that - which
> means devices behind bridges would be completely inaccessible.

That's normally done by pci_enable_bridges() called by
pci_assign_unassigned_resources(). (The later has a weird naming, it
does more than just assign unassigned resources in fact).

> >     - PA-RISC always turns on SERR and PARITY, which no other arch does
> 
> ARM also does this, unless pdev_bad_for_parity(dev) is true.  See
> ARMs pcibios_fixup_bus().

While that sounds like a good idea to generalize, I think it should
remain arch stuff tho, not move to generic code.

On some platforms, weirdo firmwares handle error handling and will be
unhappy if the kernel mucks around (such as pSeries).

> > Should other arches do the same thing, or are these somehow related to
> > ARM and PA-RISC architecture?
> 
> I suspect they're architecture specific; I wouldn't like to do either
> on x86, but they're either required or preferred on ARM.

Ben.



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On Monday 18 February 2008 11:31:07 pm Benjamin Herrenschmidt wrote:
> 
> On Mon, 2008-02-18 at 21:39 -0700, Bjorn Helgaas wrote:
> >     powerpc: has a different collision check at (5)
> 
> I've always found the collision check dodgy. I tend to want to keep
> the way powerpc does it here.
> 
> pci_enable_device() should only enable resources that have successfully
> been added to the resource tree (that have passed all the collision
> check etc...). There is a simple & clear indication of that: res->parent
> is non-NULL. I think that is a better check than the test x86 does on
> start and end.
> 
> That is, whatever the arch code decides to use to decide whether
> resources are assigned by firmware or by the first pass assignment code
> or not and collide or not, once that phase is finished (which is the
> case when calling pcibios_enable_device(), having the resource in the
> resource-tree or not is, I believe, the proper way to test whether it's
> a useable resource.

So should x86 adopt that collision check?  I don't hear anything about
actual architecture differences that are behind this implementation
difference.

Bjorn

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On Tue, Feb 19, 2008 at 09:11:55AM -0700, Bjorn Helgaas wrote:
> > That is, whatever the arch code decides to use to decide whether
> > resources are assigned by firmware or by the first pass assignment code
> > or not and collide or not, once that phase is finished (which is the
> > case when calling pcibios_enable_device(), having the resource in the
> > resource-tree or not is, I believe, the proper way to test whether it's
> > a useable resource.
> 
> So should x86 adopt that collision check?

Yes, and other arches as well, I believe.

> I don't hear anything about
> actual architecture differences that are behind this implementation
> difference.

On ppc64 "0" can be a valid value for resource start, as far as I know.

Ivan.

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On Tuesday 19 February 2008 03:08:32 am Benjamin Herrenschmidt wrote:
> On Tue, 2008-02-19 at 08:09 +0000, Russell King wrote:
> > On Mon, Feb 18, 2008 at 09:39:52PM -0700, Bjorn Helgaas wrote:
> > > 
> > > ARM and PA-RISC, in particular, have interesting differences:
> > >     - ARM always enables bridge devices, which no other arch does
> > 
> > ARM does this because there is nothing else which would do that - which
> > means devices behind bridges would be completely inaccessible.
> 
> That's normally done by pci_enable_bridges() called by
> pci_assign_unassigned_resources().

alpha, mips, mn10300, powerpc, and x86 use pci_enable_bridges() via
pci_assign_unassigned_resources().  parisc uses pci_enable_bridges()
directly from lba_driver_probe().  I guess the other arches (except
arm) rely on firmware to enable bridge.

I think pci_assign_unassigned_resources() is a bit of an anachronism --
it's a boot-time thing that does it for all root buses at once.  A
more hot-plug oriented scheme would do it like parisc, where every
time we discover a root bridge, we do any necessary resource assignment
and bridge enablement underneath it.

For ARM, maybe that could happen in pcibios_init_hw() or something
similar.

> > >     - PA-RISC always turns on SERR and PARITY, which no other arch does
> > 
> > ARM also does this, unless pdev_bad_for_parity(dev) is true.  See
> > ARMs pcibios_fixup_bus().
> 
> While that sounds like a good idea to generalize, I think it should
> remain arch stuff tho, not move to generic code.
> 
> On some platforms, weirdo firmwares handle error handling and will be
> unhappy if the kernel mucks around (such as pSeries).

I agree the SERR and PARITY stuff probably needs to remain arch code.
But it would be nice to at least have this and the bridge enable done in
similar places across arches.

Bjorn


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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [patch 4/4] RFC: PCI: consolidate several
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Cc: linux-pci@atrey.karlin.mff.cuni.cz, linux-arch@vger.kernel.org,
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> > That is, whatever the arch code decides to use to decide whether
> > resources are assigned by firmware or by the first pass assignment code
> > or not and collide or not, once that phase is finished (which is the
> > case when calling pcibios_enable_device(), having the resource in the
> > resource-tree or not is, I believe, the proper way to test whether it's
> > a useable resource.
> 
> So should x86 adopt that collision check?  I don't hear anything about
> actual architecture differences that are behind this implementation
> difference.

Well, on powerpc we do allow under some circumstances a 0 start value
in BARs, which is why I wanted to use a different check.

Ben.



From - Thu Nov 08 21:01:59 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [patch 0/4] RFC: PCI: consolidate several
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On Mon, Feb 18, 2008 at 09:39:52PM -0700, Bjorn Helgaas wrote:
> There are many implementations of pcibios_enable_resources() that differ
> in minor ways that look more like bugs than architectural differences.
> This patch series consolidates most of them to use the x86 version.
> 
> This series is for discussion only at this point.  I'm interested in
> feedback about whether any of the differences are "real" and need to
> be preserved.
> 
> ARM and PA-RISC, in particular, have interesting differences:
>     - ARM always enables bridge devices, which no other arch does
>     - PA-RISC always turns on SERR and PARITY, which no other arch does
> 
> Should other arches do the same thing, or are these somehow related to
> ARM and PA-RISC architecture?

My impression was most x86 BIOS's did NOT turn on SERR/PERR when I added
that code to parisc-linux port (2000 or 2001 so) . HPUX was turning on
SERR/PERR and so I was comfortable the HW was stable and it not crash
under normal use unless something was really broken.

There is certainly nothing architectural specific about SERR/PERR.
I felt (at the time) this is more of a case of "if it's not reported to the
user, we won't get blamed for it not working well."

hth,
grant

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Hi all,

Resending this patch as I think it's been lost at some point...

HTH

T-Bone

---------- Forwarded message ----------
From: Thibaut VARENE <T-Bone@parisc-linux.org>
Date: Thu, Dec 6, 2007 at 10:02 PM
Subject: AD1889 MAINTAINERS entry
To: Kyle McMartin <kyle@parisc-linux.org>


Hi Kyle,

 Bunk deleted our driver's entry. Here's a patch that fixes that and
 updates the mailing-list address. It's hand-diffed against MAINTAINERS
 fetched from HEAD in your git tree on git.k.o

 Cheers

 ----------------

 Restore improperly deleted (in
 b5d425c97f7d4e92151167b01ca038e7853c6b37) AD1889 SOUND DRIVER entry

 Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org>

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The patch  pci-remove-global-list-of-pci-devices.patch misses the parisc
dino use of this.  However, it's a simple removal job.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

---

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 03c763c..d9c6322 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -496,7 +496,6 @@ dino_card_setup(struct pci_bus *bus, void __iomem *base_addr)
 		list_for_each_safe(ln, tmp_ln, &bus->devices) {
 			struct pci_dev *dev = pci_dev_b(ln);
 
-			list_del(&dev->global_list);
 			list_del(&dev->bus_list);
 		}
 			



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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: [PATCH] add pa8900 CPUs to hardware inventory
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This patch adds the known pa8900 CPUs to the inventory list and removes
the Crestone Peak one which apparently never escaped into the wild.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

---

diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index 18ba4cb..1a7c30d 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -274,7 +274,17 @@ static struct hp_hardware hp_hardware_list[] __initdata = {
 	{HPHW_NPROC,0x887,0x4,0x91,"Storm Peak Slow"},
 	{HPHW_NPROC,0x888,0x4,0x91,"Storm Peak Fast DC-"},
 	{HPHW_NPROC,0x889,0x4,0x91,"Storm Peak Fast"},
-	{HPHW_NPROC,0x88A,0x4,0x91,"Crestone Peak"},
+	{HPHW_NPROC,0x88C,0x4,0x91,"Orca Mako+"},
+	{HPHW_NPROC,0x88D,0x4,0x91,"Rainier/Medel Mako+ Slow"},
+	{HPHW_NPROC,0x88E,0x4,0x91,"Rainier/Medel Mako+ Fast"},
+	{HPHW_NPROC,0x894,0x4,0x91,"Mt. Hamilton Fast Mako+"},
+	{HPHW_NPROC,0x895,0x4,0x91,"Storm Peak Slow Mako+"},
+	{HPHW_NPROC,0x896,0x4,0x91,"Storm Peak Fast Mako+"},
+	{HPHW_NPROC,0x897,0x4,0x91,"Storm Peak DC- Slow Mako+"},
+	{HPHW_NPROC,0x898,0x4,0x91,"Storm Peak DC- Fast Mako+"},
+	{HPHW_NPROC,0x899,0x4,0x91,"Mt. Hamilton Slow Mako+"},
+	{HPHW_NPROC,0x89B,0x4,0x91,"Crestone Peak Mako+ Slow"},
+	{HPHW_NPROC,0x89C,0x4,0x91,"Crestone Peak Mako+ Fast"},
 	{HPHW_A_DIRECT, 0x004, 0x0000D, 0x00, "Arrakis MUX"}, 
 	{HPHW_A_DIRECT, 0x005, 0x0000D, 0x00, "Dyun Kiuh MUX"}, 
 	{HPHW_A_DIRECT, 0x006, 0x0000D, 0x00, "Baat Kiuh AP/MUX (40299B)"}, 



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From: Greg KH <greg@kroah.com>
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Subject: Re: [PATCH] pci: remove parisc consumer of the pci global_list
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On Wed, Feb 20, 2008 at 03:14:24PM -0600, James Bottomley wrote:
> The patch  pci-remove-global-list-of-pci-devices.patch misses the parisc
> dino use of this.  However, it's a simple removal job.
> 
> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

Ah, sorry about that, I'll add that to my tree in the correct order so
we don't get bisect problems.

thanks,

greg k-h

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This is a note to let you know that I've just added the patch titled

     Subject: PCI: remove parisc consumer of the pci global_list

to my gregkh-2.6 tree.  Its filename is

     pci-remove-parisc-consumer-of-the-pci-global_list.patch

This tree can be found at 
    http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/


>From James.Bottomley@HansenPartnership.com  Wed Feb 20 14:22:51 2008
From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Wed, 20 Feb 2008 15:14:24 -0600
Subject: PCI: remove parisc consumer of the pci global_list
To: Greg KH <greg@kroah.com>
Cc: Parisc List <linux-parisc@vger.kernel.org>, linux-kernel <linux-kernel@vger.kernel.org>
Message-ID: <1203542065.3109.42.camel@localhost.localdomain>

Remove the parisc usage of the global_list, as it's not needed anymore.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/parisc/dino.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -496,7 +496,6 @@ dino_card_setup(struct pci_bus *bus, voi
 		list_for_each_safe(ln, tmp_ln, &bus->devices) {
 			struct pci_dev *dev = pci_dev_b(ln);
 
-			list_del(&dev->global_list);
 			list_del(&dev->bus_list);
 		}
 			


Patches currently in gregkh-2.6 which might be from James.Bottomley@HansenPartnership.com are

pci/pci-remove-parisc-consumer-of-the-pci-global_list.patch

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Subject: Re: patch pci-remove-parisc-consumer-of-the-pci-global_list.patch
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On Wed, Feb 20, 2008 at 02:25:02PM -0800, gregkh@suse.de wrote:
> 
> This is a note to let you know that I've just added the patch titled
> 
>      Subject: PCI: remove parisc consumer of the pci global_list
> 

Thanks for finding this, both of you. Probably saves me some heartaches
for 2.6.26-rc1. :)

cheers, Kyle

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From: Randolph Chung <randolph@tausq.org>
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Subject: [patch] clean up include/asm-parisc/elf.h
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Cleanup some cruft. No functionality changes.

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

diff --git a/include/asm-parisc/elf.h b/include/asm-parisc/elf.h
index ce0c0d8..a5f79d3 100644
--- a/include/asm-parisc/elf.h
+++ b/include/asm-parisc/elf.h
@@ -204,7 +204,7 @@ typedef struct elf64_fdesc {
 /*
  * The following definitions are those for 32-bit ELF binaries on a 32-bit
  * kernel and for 64-bit binaries on a 64-bit kernel.  To run 32-bit binaries
- * on a 64-bit kernel, arch/parisc64/kernel/binfmt_elf32.c defines these
+ * on a 64-bit kernel, arch/parisc/kernel/binfmt_elf32.c defines these
  * macros appropriately and then #includes binfmt_elf.c, which then includes
  * this file.
  */
@@ -216,26 +216,25 @@ typedef struct elf64_fdesc {
  * Note that this header file is used by default in fs/binfmt_elf.c. So
  * the following macros are for the default case. However, for the 64
  * bit kernel we also support 32 bit parisc binaries. To do that
- * arch/parisc64/kernel/binfmt_elf32.c defines its own set of these
+ * arch/parisc/kernel/binfmt_elf32.c defines its own set of these
  * macros, and then it includes fs/binfmt_elf.c to provide an alternate
  * elf binary handler for 32 bit binaries (on the 64 bit kernel).
  */
 #ifdef CONFIG_64BIT
-#define ELF_CLASS       ELFCLASS64
+#define ELF_CLASS   ELFCLASS64
 #else
 #define ELF_CLASS	ELFCLASS32
 #endif
 
 typedef unsigned long elf_greg_t;
 
-/* This yields a string that ld.so will use to load implementation
-   specific libraries for optimization.  This is more specific in
-   intent than poking at uname or /proc/cpuinfo.
-
-   For the moment, we have only optimizations for the Intel generations,
-   but that could change... */
+/* 
+ * This yields a string that ld.so will use to load implementation
+ * specific libraries for optimization.  This is more specific in
+ * intent than poking at uname or /proc/cpuinfo.
+ */
 
-#define ELF_PLATFORM  ("PARISC\0" /*+((boot_cpu_data.x86-3)*5) */)
+#define ELF_PLATFORM  ("PARISC\0")
 
 #define SET_PERSONALITY(ex, ibcs2) \
 	current->personality = PER_LINUX; \
@@ -310,7 +309,7 @@ struct pt_regs;	/* forward declaration... */
 #define ELF_OSABI 	ELFOSABI_LINUX
 
 /* %r23 is set by ld.so to a pointer to a function which might be 
-   registered using atexit.  This provides a mean for the dynamic
+   registered using atexit.  This provides a means for the dynamic
    linker to call DT_FINI functions for shared libraries that have
    been loaded before the code runs.
 
@@ -339,6 +338,5 @@ struct pt_regs;	/* forward declaration... */
    but it's not easy, and we've already done it here.  */
 
 #define ELF_HWCAP	0
-/* (boot_cpu_data.x86_capability) */
 
 #endif

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From: Adrian Bunk <bunk@kernel.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [2.6 patch] parisc: move defconfig to arch/parisc/configs/
Date: Tue, 26 Feb 2008 21:55:17 +0200
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This patch moves the default parisc defconfig to 
arch/parisc/configs/generic_defconfig where it belongs and selects it as 
the default defconfig through KBUILD_DEFCONFIG.

Signed-off-by: Adrian Bunk <adrian.bunk@movial.fi>

---

 arch/parisc/Makefile                               |    3 +++
 .../{defconfig => configs/default_defconfig}       |    0 
 2 files changed, 3 insertions(+), 0 deletions(-)

25ad6479214cf7d0f913e7e7ea9ae609af14c785 diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index e574de4..5ddad7b 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -16,6 +16,9 @@
 # Modified for PA-RISC Linux by Paul Lahaie, Alex deVries, 
 # Mike Shaver, Helge Deller and Martin K. Petersen
 #
+
+KBUILD_DEFCONFIG := default_defconfig
+
 NM		= sh $(srctree)/arch/parisc/nm
 CHECKFLAGS	+= -D__hppa__=1
 
diff --git a/arch/parisc/configs/default_defconfig b/arch/parisc/configs/default_defconfig
new file mode 100644
index 0000000..448a757
--- /dev/null
+++ b/arch/parisc/configs/default_defconfig
@@ -0,0 +1,1424 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.23
+# Fri Oct 12 20:54:57 2007
+#
+CONFIG_PARISC=y
+CONFIG_MMU=y
+CONFIG_STACK_GROWSUP=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_TIME=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_IRQ_PER_CPU=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SWAP=y
+CONFIG_SYSVIPC=y
+CONFIG_SYSVIPC_SYSCTL=y
+CONFIG_POSIX_MQUEUE=y
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_AUDIT is not set
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=16
+CONFIG_SYSFS_DEPRECATED=y
+# CONFIG_RELAY is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL=y
+# CONFIG_EMBEDDED is not set
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS=y
+CONFIG_KALLSYMS_ALL=y
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+CONFIG_KMOD=y
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+CONFIG_DEFAULT_AS=y
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="anticipatory"
+
+#
+# Processor type and features
+#
+# CONFIG_PA7000 is not set
+CONFIG_PA7100LC=y
+# CONFIG_PA7200 is not set
+# CONFIG_PA7300LC is not set
+# CONFIG_PA8X00 is not set
+CONFIG_PA11=y
+CONFIG_PARISC_PAGE_SIZE_4KB=y
+# CONFIG_PARISC_PAGE_SIZE_16KB is not set
+# CONFIG_PARISC_PAGE_SIZE_64KB is not set
+# CONFIG_SMP is not set
+CONFIG_ARCH_FLATMEM_ENABLE=y
+# CONFIG_PREEMPT_NONE is not set
+CONFIG_PREEMPT_VOLUNTARY=y
+# CONFIG_PREEMPT is not set
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+# CONFIG_HZ_300 is not set
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=250
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4096
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=0
+CONFIG_VIRT_TO_BUS=y
+# CONFIG_HPUX is not set
+
+#
+# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
+#
+CONFIG_GSC=y
+# CONFIG_HPPB is not set
+CONFIG_IOMMU_CCIO=y
+CONFIG_GSC_LASI=y
+CONFIG_GSC_WAX=y
+CONFIG_EISA=y
+CONFIG_EISA_NAMES=y
+# CONFIG_ISA is not set
+CONFIG_PCI=y
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+# CONFIG_PCI_DEBUG is not set
+CONFIG_GSC_DINO=y
+CONFIG_PCI_LBA=y
+CONFIG_IOSAPIC=y
+CONFIG_IOMMU_SBA=y
+
+#
+# PCCARD (PCMCIA/CardBus) support
+#
+CONFIG_PCCARD=y
+# CONFIG_PCMCIA_DEBUG is not set
+CONFIG_PCMCIA=y
+CONFIG_PCMCIA_LOAD_CIS=y
+CONFIG_PCMCIA_IOCTL=y
+CONFIG_CARDBUS=y
+
+#
+# PC-card bridges
+#
+CONFIG_YENTA=y
+CONFIG_YENTA_O2=y
+CONFIG_YENTA_RICOH=y
+CONFIG_YENTA_TI=y
+CONFIG_YENTA_ENE_TUNE=y
+CONFIG_YENTA_TOSHIBA=y
+CONFIG_PD6729=y
+CONFIG_I82092=y
+CONFIG_PCCARD_NONSTATIC=y
+# CONFIG_HOTPLUG_PCI is not set
+
+#
+# PA-RISC specific drivers
+#
+CONFIG_SUPERIO=y
+CONFIG_CHASSIS_LCD_LED=y
+CONFIG_PDC_CHASSIS=y
+CONFIG_PDC_CHASSIS_WARN=y
+CONFIG_PDC_STABLE=y
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_ELF=y
+CONFIG_BINFMT_MISC=m
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+CONFIG_PACKET_MMAP=y
+CONFIG_UNIX=y
+CONFIG_XFRM=y
+CONFIG_XFRM_USER=m
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
+CONFIG_NET_KEY=m
+# CONFIG_NET_KEY_MIGRATE is not set
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_IP_MROUTE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+CONFIG_INET_TUNNEL=y
+CONFIG_INET_XFRM_MODE_TRANSPORT=y
+CONFIG_INET_XFRM_MODE_TUNNEL=y
+CONFIG_INET_XFRM_MODE_BEET=y
+# CONFIG_INET_LRO is not set
+CONFIG_INET_DIAG=m
+CONFIG_INET_TCP_DIAG=m
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+CONFIG_IPV6=y
+# CONFIG_IPV6_PRIVACY is not set
+# CONFIG_IPV6_ROUTER_PREF is not set
+# CONFIG_IPV6_OPTIMISTIC_DAD is not set
+CONFIG_INET6_AH=y
+CONFIG_INET6_ESP=y
+CONFIG_INET6_IPCOMP=y
+# CONFIG_IPV6_MIP6 is not set
+CONFIG_INET6_XFRM_TUNNEL=y
+CONFIG_INET6_TUNNEL=y
+CONFIG_INET6_XFRM_MODE_TRANSPORT=y
+CONFIG_INET6_XFRM_MODE_TUNNEL=y
+CONFIG_INET6_XFRM_MODE_BEET=y
+# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
+CONFIG_IPV6_SIT=y
+# CONFIG_IPV6_TUNNEL is not set
+# CONFIG_IPV6_MULTIPLE_TABLES is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+CONFIG_LLC=m
+CONFIG_LLC2=m
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+
+#
+# QoS and/or fair queueing
+#
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+CONFIG_FW_LOADER=y
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+# CONFIG_MTD is not set
+CONFIG_PARPORT=y
+CONFIG_PARPORT_PC=m
+# CONFIG_PARPORT_SERIAL is not set
+# CONFIG_PARPORT_PC_FIFO is not set
+# CONFIG_PARPORT_PC_SUPERIO is not set
+CONFIG_PARPORT_PC_PCMCIA=m
+CONFIG_PARPORT_GSC=y
+# CONFIG_PARPORT_AX88796 is not set
+CONFIG_PARPORT_1284=y
+CONFIG_PARPORT_NOT_PC=y
+CONFIG_BLK_DEV=y
+# CONFIG_PARIDE is not set
+# CONFIG_BLK_CPQ_DA is not set
+# CONFIG_BLK_CPQ_CISS_DA is not set
+# CONFIG_BLK_DEV_DAC960 is not set
+# CONFIG_BLK_DEV_UMEM is not set
+# CONFIG_BLK_DEV_COW_COMMON is not set
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_CRYPTOLOOP=y
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_SX8 is not set
+# CONFIG_BLK_DEV_UB is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=6144
+CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_PHANTOM is not set
+# CONFIG_EEPROM_93CX6 is not set
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_TIFM_CORE is not set
+CONFIG_IDE=y
+CONFIG_BLK_DEV_IDE=y
+
+#
+# Please see Documentation/ide.txt for help/info on IDE drives
+#
+# CONFIG_BLK_DEV_IDE_SATA is not set
+CONFIG_BLK_DEV_IDEDISK=y
+CONFIG_IDEDISK_MULTI_MODE=y
+CONFIG_BLK_DEV_IDECS=y
+# CONFIG_BLK_DEV_DELKIN is not set
+CONFIG_BLK_DEV_IDECD=y
+# CONFIG_BLK_DEV_IDETAPE is not set
+# CONFIG_BLK_DEV_IDEFLOPPY is not set
+CONFIG_BLK_DEV_IDESCSI=y
+# CONFIG_IDE_TASK_IOCTL is not set
+CONFIG_IDE_PROC_FS=y
+
+#
+# IDE chipset support/bugfixes
+#
+CONFIG_IDE_GENERIC=y
+# CONFIG_BLK_DEV_PLATFORM is not set
+
+#
+# PCI IDE chipsets support
+#
+CONFIG_BLK_DEV_IDEPCI=y
+CONFIG_IDEPCI_SHARE_IRQ=y
+CONFIG_IDEPCI_PCIBUS_ORDER=y
+# CONFIG_BLK_DEV_OFFBOARD is not set
+CONFIG_BLK_DEV_GENERIC=y
+# CONFIG_BLK_DEV_OPTI621 is not set
+CONFIG_BLK_DEV_IDEDMA_PCI=y
+# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
+CONFIG_IDEDMA_ONLYDISK=y
+# CONFIG_BLK_DEV_AEC62XX is not set
+# CONFIG_BLK_DEV_ALI15X3 is not set
+# CONFIG_BLK_DEV_AMD74XX is not set
+# CONFIG_BLK_DEV_CMD64X is not set
+# CONFIG_BLK_DEV_TRIFLEX is not set
+# CONFIG_BLK_DEV_CY82C693 is not set
+# CONFIG_BLK_DEV_CS5520 is not set
+# CONFIG_BLK_DEV_CS5530 is not set
+# CONFIG_BLK_DEV_HPT34X is not set
+# CONFIG_BLK_DEV_HPT366 is not set
+# CONFIG_BLK_DEV_JMICRON is not set
+# CONFIG_BLK_DEV_SC1200 is not set
+# CONFIG_BLK_DEV_PIIX is not set
+# CONFIG_BLK_DEV_IT8213 is not set
+# CONFIG_BLK_DEV_IT821X is not set
+CONFIG_BLK_DEV_NS87415=y
+# CONFIG_BLK_DEV_PDC202XX_OLD is not set
+# CONFIG_BLK_DEV_PDC202XX_NEW is not set
+# CONFIG_BLK_DEV_SVWKS is not set
+# CONFIG_BLK_DEV_SIIMAGE is not set
+# CONFIG_BLK_DEV_SLC90E66 is not set
+# CONFIG_BLK_DEV_TRM290 is not set
+# CONFIG_BLK_DEV_VIA82CXXX is not set
+# CONFIG_BLK_DEV_TC86C001 is not set
+# CONFIG_IDE_ARM is not set
+CONFIG_BLK_DEV_IDEDMA=y
+# CONFIG_IDEDMA_IVB is not set
+# CONFIG_BLK_DEV_HD is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+CONFIG_SCSI=y
+CONFIG_SCSI_DMA=y
+# CONFIG_SCSI_TGT is not set
+# CONFIG_SCSI_NETLINK is not set
+CONFIG_SCSI_PROC_FS=y
+
+#
+# SCSI support type (disk, tape, CD-ROM)
+#
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_ST=y
+# CONFIG_CHR_DEV_OSST is not set
+CONFIG_BLK_DEV_SR=y
+# CONFIG_BLK_DEV_SR_VENDOR is not set
+CONFIG_CHR_DEV_SG=y
+# CONFIG_CHR_DEV_SCH is not set
+
+#
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
+#
+# CONFIG_SCSI_MULTI_LUN is not set
+# CONFIG_SCSI_CONSTANTS is not set
+# CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
+CONFIG_SCSI_WAIT_SCAN=m
+
+#
+# SCSI Transports
+#
+CONFIG_SCSI_SPI_ATTRS=y
+# CONFIG_SCSI_FC_ATTRS is not set
+# CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_LIBSAS is not set
+CONFIG_SCSI_LOWLEVEL=y
+# CONFIG_ISCSI_TCP is not set
+# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
+# CONFIG_SCSI_3W_9XXX is not set
+# CONFIG_SCSI_ACARD is not set
+# CONFIG_SCSI_AHA1740 is not set
+# CONFIG_SCSI_AACRAID is not set
+# CONFIG_SCSI_AIC7XXX is not set
+# CONFIG_SCSI_AIC7XXX_OLD is not set
+# CONFIG_SCSI_AIC79XX is not set
+# CONFIG_SCSI_AIC94XX is not set
+# CONFIG_SCSI_DPT_I2O is not set
+# CONFIG_SCSI_ARCMSR is not set
+# CONFIG_MEGARAID_NEWGEN is not set
+# CONFIG_MEGARAID_LEGACY is not set
+# CONFIG_MEGARAID_SAS is not set
+# CONFIG_SCSI_HPTIOP is not set
+# CONFIG_SCSI_DMX3191D is not set
+# CONFIG_SCSI_FUTURE_DOMAIN is not set
+# CONFIG_SCSI_IPS is not set
+# CONFIG_SCSI_INITIO is not set
+# CONFIG_SCSI_INIA100 is not set
+# CONFIG_SCSI_PPA is not set
+# CONFIG_SCSI_IMM is not set
+CONFIG_SCSI_LASI700=y
+CONFIG_53C700_LE_ON_BE=y
+# CONFIG_SCSI_STEX is not set
+CONFIG_SCSI_SYM53C8XX_2=y
+CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
+CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
+CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
+CONFIG_SCSI_SYM53C8XX_MMIO=y
+CONFIG_SCSI_ZALON=y
+CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
+CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
+CONFIG_SCSI_NCR53C8XX_SYNC=20
+# CONFIG_SCSI_QLOGIC_1280 is not set
+# CONFIG_SCSI_QLA_FC is not set
+# CONFIG_SCSI_QLA_ISCSI is not set
+# CONFIG_SCSI_LPFC is not set
+# CONFIG_SCSI_SIM710 is not set
+# CONFIG_SCSI_DC395x is not set
+# CONFIG_SCSI_DC390T is not set
+# CONFIG_SCSI_NSP32 is not set
+# CONFIG_SCSI_DEBUG is not set
+# CONFIG_SCSI_SRP is not set
+# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
+# CONFIG_ATA is not set
+CONFIG_MD=y
+CONFIG_BLK_DEV_MD=y
+CONFIG_MD_LINEAR=y
+CONFIG_MD_RAID0=y
+CONFIG_MD_RAID1=y
+CONFIG_MD_RAID10=y
+# CONFIG_MD_RAID456 is not set
+# CONFIG_MD_MULTIPATH is not set
+# CONFIG_MD_FAULTY is not set
+CONFIG_BLK_DEV_DM=y
+# CONFIG_DM_DEBUG is not set
+# CONFIG_DM_CRYPT is not set
+# CONFIG_DM_SNAPSHOT is not set
+# CONFIG_DM_MIRROR is not set
+# CONFIG_DM_ZERO is not set
+# CONFIG_DM_MULTIPATH is not set
+# CONFIG_DM_DELAY is not set
+
+#
+# Fusion MPT device support
+#
+# CONFIG_FUSION is not set
+# CONFIG_FUSION_SPI is not set
+# CONFIG_FUSION_FC is not set
+# CONFIG_FUSION_SAS is not set
+
+#
+# IEEE 1394 (FireWire) support
+#
+# CONFIG_FIREWIRE is not set
+# CONFIG_IEEE1394 is not set
+# CONFIG_I2O is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+CONFIG_DUMMY=m
+CONFIG_BONDING=m
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+CONFIG_TUN=m
+# CONFIG_VETH is not set
+# CONFIG_IP1000 is not set
+# CONFIG_ARCNET is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=m
+CONFIG_LASI_82596=y
+# CONFIG_HAPPYMEAL is not set
+# CONFIG_SUNGEM is not set
+# CONFIG_CASSINI is not set
+# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_NET_VENDOR_SMC is not set
+CONFIG_NET_TULIP=y
+# CONFIG_DE2104X is not set
+CONFIG_TULIP=y
+# CONFIG_TULIP_MWI is not set
+# CONFIG_TULIP_MMIO is not set
+# CONFIG_TULIP_NAPI is not set
+# CONFIG_DE4X5 is not set
+# CONFIG_WINBOND_840 is not set
+# CONFIG_DM9102 is not set
+# CONFIG_ULI526X is not set
+# CONFIG_PCMCIA_XIRCOM is not set
+# CONFIG_PCMCIA_XIRTULIP is not set
+# CONFIG_DEPCA is not set
+# CONFIG_HP100 is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+CONFIG_NET_PCI=y
+# CONFIG_PCNET32 is not set
+# CONFIG_AMD8111_ETH is not set
+# CONFIG_ADAPTEC_STARFIRE is not set
+# CONFIG_AC3200 is not set
+# CONFIG_B44 is not set
+# CONFIG_FORCEDETH is not set
+# CONFIG_EEPRO100 is not set
+# CONFIG_E100 is not set
+# CONFIG_LNE390 is not set
+# CONFIG_FEALNX is not set
+# CONFIG_NATSEMI is not set
+# CONFIG_NE2K_PCI is not set
+# CONFIG_NE3210 is not set
+# CONFIG_ES3210 is not set
+# CONFIG_8139CP is not set
+# CONFIG_8139TOO is not set
+# CONFIG_SIS900 is not set
+# CONFIG_EPIC100 is not set
+# CONFIG_SUNDANCE is not set
+# CONFIG_TLAN is not set
+# CONFIG_VIA_RHINE is not set
+# CONFIG_SC92031 is not set
+# CONFIG_NET_POCKET is not set
+CONFIG_NETDEV_1000=y
+CONFIG_ACENIC=y
+# CONFIG_ACENIC_OMIT_TIGON_I is not set
+# CONFIG_DL2K is not set
+# CONFIG_E1000 is not set
+# CONFIG_E1000E is not set
+# CONFIG_NS83820 is not set
+# CONFIG_HAMACHI is not set
+# CONFIG_YELLOWFIN is not set
+# CONFIG_R8169 is not set
+# CONFIG_SIS190 is not set
+# CONFIG_SKGE is not set
+# CONFIG_SKY2 is not set
+# CONFIG_SK98LIN is not set
+# CONFIG_VIA_VELOCITY is not set
+CONFIG_TIGON3=y
+# CONFIG_BNX2 is not set
+# CONFIG_QLA3XXX is not set
+# CONFIG_ATL1 is not set
+CONFIG_NETDEV_10000=y
+# CONFIG_CHELSIO_T1 is not set
+# CONFIG_CHELSIO_T3 is not set
+# CONFIG_IXGBE is not set
+# CONFIG_IXGB is not set
+# CONFIG_S2IO is not set
+# CONFIG_MYRI10GE is not set
+# CONFIG_NETXEN_NIC is not set
+# CONFIG_NIU is not set
+# CONFIG_MLX4_CORE is not set
+# CONFIG_TEHUTI is not set
+# CONFIG_TR is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+
+#
+# USB Network Adapters
+#
+# CONFIG_USB_CATC is not set
+# CONFIG_USB_KAWETH is not set
+# CONFIG_USB_PEGASUS is not set
+# CONFIG_USB_RTL8150 is not set
+# CONFIG_USB_USBNET_MII is not set
+# CONFIG_USB_USBNET is not set
+CONFIG_NET_PCMCIA=y
+# CONFIG_PCMCIA_3C589 is not set
+# CONFIG_PCMCIA_3C574 is not set
+# CONFIG_PCMCIA_FMVJ18X is not set
+# CONFIG_PCMCIA_PCNET is not set
+# CONFIG_PCMCIA_NMCLAN is not set
+# CONFIG_PCMCIA_SMC91C92 is not set
+# CONFIG_PCMCIA_XIRC2PS is not set
+# CONFIG_PCMCIA_AXNET is not set
+# CONFIG_WAN is not set
+# CONFIG_FDDI is not set
+# CONFIG_HIPPI is not set
+# CONFIG_PLIP is not set
+CONFIG_PPP=m
+# CONFIG_PPP_MULTILINK is not set
+# CONFIG_PPP_FILTER is not set
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_BSDCOMP=m
+# CONFIG_PPP_MPPE is not set
+CONFIG_PPPOE=m
+# CONFIG_PPPOL2TP is not set
+# CONFIG_SLIP is not set
+CONFIG_SLHC=m
+# CONFIG_NET_FC is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_POLLDEV is not set
+
+#
+# Userland interfaces
+#
+CONFIG_INPUT_MOUSEDEV=y
+CONFIG_INPUT_MOUSEDEV_PSAUX=y
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_TSDEV is not set
+# CONFIG_INPUT_EVDEV is not set
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+CONFIG_INPUT_KEYBOARD=y
+CONFIG_KEYBOARD_ATKBD=y
+CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
+# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
+# CONFIG_KEYBOARD_SUNKBD is not set
+# CONFIG_KEYBOARD_LKKBD is not set
+# CONFIG_KEYBOARD_XTKBD is not set
+# CONFIG_KEYBOARD_NEWTON is not set
+# CONFIG_KEYBOARD_STOWAWAY is not set
+# CONFIG_KEYBOARD_HIL_OLD is not set
+CONFIG_KEYBOARD_HIL=y
+CONFIG_INPUT_MOUSE=y
+CONFIG_MOUSE_PS2=y
+CONFIG_MOUSE_PS2_ALPS=y
+CONFIG_MOUSE_PS2_LOGIPS2PP=y
+CONFIG_MOUSE_PS2_SYNAPTICS=y
+CONFIG_MOUSE_PS2_LIFEBOOK=y
+CONFIG_MOUSE_PS2_TRACKPOINT=y
+# CONFIG_MOUSE_PS2_TOUCHKIT is not set
+CONFIG_MOUSE_SERIAL=y
+# CONFIG_MOUSE_APPLETOUCH is not set
+# CONFIG_MOUSE_VSXXXAA is not set
+CONFIG_MOUSE_HIL=y
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
+
+#
+# Hardware I/O ports
+#
+CONFIG_SERIO=y
+CONFIG_SERIO_SERPORT=y
+# CONFIG_SERIO_PARKBD is not set
+CONFIG_SERIO_GSCPS2=y
+CONFIG_HP_SDC=y
+CONFIG_HIL_MLC=y
+# CONFIG_SERIO_PCIPS2 is not set
+CONFIG_SERIO_LIBPS2=y
+# CONFIG_SERIO_RAW is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_GSC=y
+CONFIG_SERIAL_8250_PCI=y
+CONFIG_SERIAL_8250_CS=y
+CONFIG_SERIAL_8250_NR_UARTS=17
+CONFIG_SERIAL_8250_RUNTIME_UARTS=4
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_MANY_PORTS=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+# CONFIG_SERIAL_8250_DETECT_IRQ is not set
+# CONFIG_SERIAL_8250_RSA is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_MUX=y
+CONFIG_SERIAL_MUX_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_JSM is not set
+CONFIG_UNIX98_PTYS=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=64
+CONFIG_PRINTER=m
+# CONFIG_LP_CONSOLE is not set
+CONFIG_PPDEV=m
+# CONFIG_TIPAR is not set
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_WATCHDOG is not set
+# CONFIG_HW_RANDOM is not set
+CONFIG_GEN_RTC=y
+CONFIG_GEN_RTC_X=y
+# CONFIG_R3964 is not set
+# CONFIG_APPLICOM is not set
+# CONFIG_AGP is not set
+# CONFIG_DRM is not set
+
+#
+# PCMCIA character devices
+#
+# CONFIG_SYNCLINK_CS is not set
+# CONFIG_CARDMAN_4000 is not set
+# CONFIG_CARDMAN_4040 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+CONFIG_DEVPORT=y
+# CONFIG_I2C is not set
+
+#
+# SPI support
+#
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+# CONFIG_DAB is not set
+
+#
+# Graphics support
+#
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+# CONFIG_VGASTATE is not set
+CONFIG_VIDEO_OUTPUT_CONTROL=m
+CONFIG_FB=y
+# CONFIG_FIRMWARE_EDID is not set
+# CONFIG_FB_DDC is not set
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_SYS_FOPS is not set
+CONFIG_FB_DEFERRED_IO=y
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_FB_TILEBLITTING=y
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_CIRRUS is not set
+# CONFIG_FB_PM2 is not set
+# CONFIG_FB_CYBER2000 is not set
+# CONFIG_FB_ASILIANT is not set
+# CONFIG_FB_IMSTT is not set
+CONFIG_FB_STI=y
+# CONFIG_FB_S1D13XXX is not set
+# CONFIG_FB_NVIDIA is not set
+# CONFIG_FB_RIVA is not set
+# CONFIG_FB_MATROX is not set
+# CONFIG_FB_RADEON is not set
+# CONFIG_FB_ATY128 is not set
+# CONFIG_FB_ATY is not set
+# CONFIG_FB_S3 is not set
+# CONFIG_FB_SAVAGE is not set
+# CONFIG_FB_SIS is not set
+# CONFIG_FB_NEOMAGIC is not set
+# CONFIG_FB_KYRO is not set
+# CONFIG_FB_3DFX is not set
+# CONFIG_FB_VOODOO1 is not set
+# CONFIG_FB_VT8623 is not set
+# CONFIG_FB_TRIDENT is not set
+# CONFIG_FB_ARK is not set
+# CONFIG_FB_PM3 is not set
+# CONFIG_FB_VIRTUAL is not set
+
+#
+# Console display driver support
+#
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_DUMMY_CONSOLE_COLUMNS=128
+CONFIG_DUMMY_CONSOLE_ROWS=48
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+CONFIG_STI_CONSOLE=y
+CONFIG_FONTS=y
+# CONFIG_FONT_8x8 is not set
+CONFIG_FONT_8x16=y
+# CONFIG_FONT_6x11 is not set
+# CONFIG_FONT_7x14 is not set
+# CONFIG_FONT_PEARL_8x8 is not set
+# CONFIG_FONT_ACORN_8x8 is not set
+# CONFIG_FONT_MINI_4x6 is not set
+# CONFIG_FONT_SUN8x16 is not set
+# CONFIG_FONT_SUN12x22 is not set
+# CONFIG_FONT_10x18 is not set
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+# CONFIG_LOGO_LINUX_CLUT224 is not set
+CONFIG_LOGO_PARISC_CLUT224=y
+
+#
+# Sound
+#
+CONFIG_SOUND=y
+
+#
+# Advanced Linux Sound Architecture
+#
+CONFIG_SND=y
+CONFIG_SND_TIMER=y
+CONFIG_SND_PCM=y
+CONFIG_SND_SEQUENCER=y
+# CONFIG_SND_SEQ_DUMMY is not set
+CONFIG_SND_OSSEMUL=y
+CONFIG_SND_MIXER_OSS=y
+CONFIG_SND_PCM_OSS=y
+CONFIG_SND_PCM_OSS_PLUGINS=y
+CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_DYNAMIC_MINORS=y
+CONFIG_SND_SUPPORT_OLD_API=y
+CONFIG_SND_VERBOSE_PROCFS=y
+# CONFIG_SND_VERBOSE_PRINTK is not set
+# CONFIG_SND_DEBUG is not set
+
+#
+# Generic devices
+#
+CONFIG_SND_AC97_CODEC=y
+# CONFIG_SND_DUMMY is not set
+# CONFIG_SND_VIRMIDI is not set
+# CONFIG_SND_MTPAV is not set
+# CONFIG_SND_MTS64 is not set
+# CONFIG_SND_SERIAL_U16550 is not set
+# CONFIG_SND_MPU401 is not set
+# CONFIG_SND_PORTMAN2X4 is not set
+
+#
+# PCI devices
+#
+CONFIG_SND_AD1889=y
+# CONFIG_SND_ALS300 is not set
+# CONFIG_SND_ALI5451 is not set
+# CONFIG_SND_ATIIXP is not set
+# CONFIG_SND_ATIIXP_MODEM is not set
+# CONFIG_SND_AU8810 is not set
+# CONFIG_SND_AU8820 is not set
+# CONFIG_SND_AU8830 is not set
+# CONFIG_SND_AZT3328 is not set
+# CONFIG_SND_BT87X is not set
+# CONFIG_SND_CA0106 is not set
+# CONFIG_SND_CMIPCI is not set
+# CONFIG_SND_CS4281 is not set
+# CONFIG_SND_CS46XX is not set
+# CONFIG_SND_DARLA20 is not set
+# CONFIG_SND_GINA20 is not set
+# CONFIG_SND_LAYLA20 is not set
+# CONFIG_SND_DARLA24 is not set
+# CONFIG_SND_GINA24 is not set
+# CONFIG_SND_LAYLA24 is not set
+# CONFIG_SND_MONA is not set
+# CONFIG_SND_MIA is not set
+# CONFIG_SND_ECHO3G is not set
+# CONFIG_SND_INDIGO is not set
+# CONFIG_SND_INDIGOIO is not set
+# CONFIG_SND_INDIGODJ is not set
+# CONFIG_SND_EMU10K1 is not set
+# CONFIG_SND_EMU10K1X is not set
+# CONFIG_SND_ENS1370 is not set
+# CONFIG_SND_ENS1371 is not set
+# CONFIG_SND_ES1938 is not set
+# CONFIG_SND_ES1968 is not set
+# CONFIG_SND_FM801 is not set
+# CONFIG_SND_HDA_INTEL is not set
+# CONFIG_SND_HDSP is not set
+# CONFIG_SND_HDSPM is not set
+# CONFIG_SND_ICE1712 is not set
+# CONFIG_SND_ICE1724 is not set
+# CONFIG_SND_INTEL8X0 is not set
+# CONFIG_SND_INTEL8X0M is not set
+# CONFIG_SND_KORG1212 is not set
+# CONFIG_SND_MAESTRO3 is not set
+# CONFIG_SND_MIXART is not set
+# CONFIG_SND_NM256 is not set
+# CONFIG_SND_PCXHR is not set
+# CONFIG_SND_RIPTIDE is not set
+# CONFIG_SND_RME32 is not set
+# CONFIG_SND_RME96 is not set
+# CONFIG_SND_RME9652 is not set
+# CONFIG_SND_SONICVIBES is not set
+# CONFIG_SND_TRIDENT is not set
+# CONFIG_SND_VIA82XX is not set
+# CONFIG_SND_VIA82XX_MODEM is not set
+# CONFIG_SND_VX222 is not set
+# CONFIG_SND_YMFPCI is not set
+# CONFIG_SND_AC97_POWER_SAVE is not set
+
+#
+# USB devices
+#
+# CONFIG_SND_USB_AUDIO is not set
+# CONFIG_SND_USB_CAIAQ is not set
+
+#
+# PCMCIA devices
+#
+# CONFIG_SND_VXPOCKET is not set
+# CONFIG_SND_PDAUDIOCF is not set
+
+#
+# GSC devices
+#
+CONFIG_SND_HARMONY=y
+
+#
+# System on Chip audio support
+#
+# CONFIG_SND_SOC is not set
+
+#
+# SoC Audio support for SuperH
+#
+
+#
+# Open Sound System
+#
+# CONFIG_SOUND_PRIME is not set
+CONFIG_AC97_BUS=y
+CONFIG_HID_SUPPORT=y
+CONFIG_HID=y
+CONFIG_HID_DEBUG=y
+
+#
+# USB Input Devices
+#
+CONFIG_USB_HID=y
+# CONFIG_USB_HIDINPUT_POWERBOOK is not set
+# CONFIG_HID_FF is not set
+# CONFIG_USB_HIDDEV is not set
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_ARCH_HAS_HCD=y
+CONFIG_USB_ARCH_HAS_OHCI=y
+CONFIG_USB_ARCH_HAS_EHCI=y
+CONFIG_USB=y
+# CONFIG_USB_DEBUG is not set
+
+#
+# Miscellaneous USB options
+#
+CONFIG_USB_DEVICEFS=y
+CONFIG_USB_DEVICE_CLASS=y
+# CONFIG_USB_DYNAMIC_MINORS is not set
+# CONFIG_USB_OTG is not set
+
+#
+# USB Host Controller Drivers
+#
+# CONFIG_USB_EHCI_HCD is not set
+# CONFIG_USB_ISP116X_HCD is not set
+CONFIG_USB_OHCI_HCD=y
+# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
+# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
+CONFIG_USB_OHCI_LITTLE_ENDIAN=y
+CONFIG_USB_UHCI_HCD=y
+# CONFIG_USB_SL811_HCD is not set
+# CONFIG_USB_R8A66597_HCD is not set
+
+#
+# USB Device Class drivers
+#
+# CONFIG_USB_ACM is not set
+# CONFIG_USB_PRINTER is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# may also be needed; see USB_STORAGE Help for more information
+#
+# CONFIG_USB_STORAGE is not set
+# CONFIG_USB_LIBUSUAL is not set
+
+#
+# USB Imaging devices
+#
+# CONFIG_USB_MDC800 is not set
+# CONFIG_USB_MICROTEK is not set
+CONFIG_USB_MON=y
+
+#
+# USB port drivers
+#
+# CONFIG_USB_USS720 is not set
+
+#
+# USB Serial Converter support
+#
+# CONFIG_USB_SERIAL is not set
+
+#
+# USB Miscellaneous drivers
+#
+# CONFIG_USB_EMI62 is not set
+# CONFIG_USB_EMI26 is not set
+# CONFIG_USB_ADUTUX is not set
+# CONFIG_USB_AUERSWALD is not set
+# CONFIG_USB_RIO500 is not set
+# CONFIG_USB_LEGOTOWER is not set
+# CONFIG_USB_LCD is not set
+# CONFIG_USB_BERRY_CHARGE is not set
+# CONFIG_USB_LED is not set
+# CONFIG_USB_CYPRESS_CY7C63 is not set
+# CONFIG_USB_CYTHERM is not set
+# CONFIG_USB_PHIDGET is not set
+# CONFIG_USB_IDMOUSE is not set
+# CONFIG_USB_FTDI_ELAN is not set
+# CONFIG_USB_APPLEDISPLAY is not set
+# CONFIG_USB_LD is not set
+# CONFIG_USB_TRANCEVIBRATOR is not set
+# CONFIG_USB_IOWARRIOR is not set
+# CONFIG_USB_TEST is not set
+
+#
+# USB DSL modem support
+#
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+# CONFIG_MMC is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_INFINIBAND is not set
+# CONFIG_RTC_CLASS is not set
+
+#
+# DMA Engine support
+#
+# CONFIG_DMA_ENGINE is not set
+
+#
+# DMA Clients
+#
+
+#
+# DMA Devices
+#
+# CONFIG_AUXDISPLAY is not set
+
+#
+# Userspace I/O
+#
+# CONFIG_UIO is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_FS_XATTR is not set
+# CONFIG_EXT4DEV_FS is not set
+CONFIG_JBD=y
+# CONFIG_JBD_DEBUG is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+CONFIG_FS_POSIX_ACL=y
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_ROMFS_FS is not set
+CONFIG_INOTIFY=y
+CONFIG_INOTIFY_USER=y
+# CONFIG_QUOTA is not set
+CONFIG_DNOTIFY=y
+CONFIG_AUTOFS_FS=y
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+CONFIG_ISO9660_FS=y
+CONFIG_JOLIET=y
+# CONFIG_ZISOFS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+CONFIG_FAT_FS=y
+# CONFIG_MSDOS_FS is not set
+CONFIG_VFAT_FS=y
+CONFIG_FAT_DEFAULT_CODEPAGE=437
+CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+# CONFIG_HUGETLB_PAGE is not set
+CONFIG_RAMFS=y
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_ECRYPT_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+
+#
+# Network File Systems
+#
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFS_DIRECTIO is not set
+CONFIG_NFSD=y
+CONFIG_NFSD_V3=y
+# CONFIG_NFSD_V3_ACL is not set
+CONFIG_NFSD_V4=y
+CONFIG_NFSD_TCP=y
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_EXPORTFS=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+CONFIG_SUNRPC_GSS=y
+# CONFIG_SUNRPC_BIND34 is not set
+CONFIG_RPCSEC_GSS_KRB5=y
+CONFIG_RPCSEC_GSS_SPKM3=m
+CONFIG_SMB_FS=m
+CONFIG_SMB_NLS_DEFAULT=y
+CONFIG_SMB_NLS_REMOTE="cp437"
+CONFIG_CIFS=m
+# CONFIG_CIFS_STATS is not set
+# CONFIG_CIFS_WEAK_PW_HASH is not set
+# CONFIG_CIFS_XATTR is not set
+# CONFIG_CIFS_DEBUG2 is not set
+# CONFIG_CIFS_EXPERIMENTAL is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+
+#
+# Native Language Support
+#
+CONFIG_NLS=y
+CONFIG_NLS_DEFAULT="iso8859-1"
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_CODEPAGE_737=m
+CONFIG_NLS_CODEPAGE_775=m
+CONFIG_NLS_CODEPAGE_850=m
+CONFIG_NLS_CODEPAGE_852=m
+CONFIG_NLS_CODEPAGE_855=m
+CONFIG_NLS_CODEPAGE_857=m
+CONFIG_NLS_CODEPAGE_860=m
+CONFIG_NLS_CODEPAGE_861=m
+CONFIG_NLS_CODEPAGE_862=m
+CONFIG_NLS_CODEPAGE_863=m
+CONFIG_NLS_CODEPAGE_864=m
+CONFIG_NLS_CODEPAGE_865=m
+CONFIG_NLS_CODEPAGE_866=m
+CONFIG_NLS_CODEPAGE_869=m
+CONFIG_NLS_CODEPAGE_936=m
+CONFIG_NLS_CODEPAGE_950=m
+CONFIG_NLS_CODEPAGE_932=m
+CONFIG_NLS_CODEPAGE_949=m
+CONFIG_NLS_CODEPAGE_874=m
+CONFIG_NLS_ISO8859_8=m
+CONFIG_NLS_CODEPAGE_1250=y
+CONFIG_NLS_CODEPAGE_1251=m
+CONFIG_NLS_ASCII=m
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_2=m
+CONFIG_NLS_ISO8859_3=m
+CONFIG_NLS_ISO8859_4=m
+CONFIG_NLS_ISO8859_5=m
+CONFIG_NLS_ISO8859_6=m
+CONFIG_NLS_ISO8859_7=m
+CONFIG_NLS_ISO8859_9=m
+CONFIG_NLS_ISO8859_13=m
+CONFIG_NLS_ISO8859_14=m
+CONFIG_NLS_ISO8859_15=m
+CONFIG_NLS_KOI8_R=m
+CONFIG_NLS_KOI8_U=m
+CONFIG_NLS_UTF8=y
+
+#
+# Distributed Lock Manager
+#
+# CONFIG_DLM is not set
+
+#
+# Profiling support
+#
+CONFIG_PROFILING=y
+CONFIG_OPROFILE=m
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_DEBUG_FS is not set
+CONFIG_HEADERS_CHECK=y
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
+CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_SCHED_DEBUG=y
+# CONFIG_SCHEDSTATS is not set
+# CONFIG_TIMER_STATS is not set
+# CONFIG_DEBUG_SLAB is not set
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+CONFIG_DEBUG_MUTEXES=y
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+# CONFIG_DEBUG_INFO is not set
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_LIST is not set
+CONFIG_FORCED_INLINING=y
+# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_FAULT_INJECTION is not set
+# CONFIG_DEBUG_RODATA is not set
+
+#
+# Security options
+#
+CONFIG_KEYS=y
+CONFIG_KEYS_DEBUG_PROC_KEYS=y
+# CONFIG_SECURITY is not set
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_ALGAPI=y
+CONFIG_CRYPTO_BLKCIPHER=y
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_HMAC=y
+# CONFIG_CRYPTO_XCBC is not set
+CONFIG_CRYPTO_NULL=m
+CONFIG_CRYPTO_MD4=m
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_SHA1=y
+CONFIG_CRYPTO_SHA256=m
+CONFIG_CRYPTO_SHA512=m
+CONFIG_CRYPTO_WP512=m
+CONFIG_CRYPTO_TGR192=m
+# CONFIG_CRYPTO_GF128MUL is not set
+# CONFIG_CRYPTO_ECB is not set
+CONFIG_CRYPTO_CBC=y
+# CONFIG_CRYPTO_PCBC is not set
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_XTS is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+CONFIG_CRYPTO_DES=y
+# CONFIG_CRYPTO_FCRYPT is not set
+CONFIG_CRYPTO_BLOWFISH=m
+CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_TWOFISH_COMMON=m
+CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_AES=m
+CONFIG_CRYPTO_CAST5=m
+CONFIG_CRYPTO_CAST6=m
+CONFIG_CRYPTO_TEA=m
+CONFIG_CRYPTO_ARC4=m
+CONFIG_CRYPTO_KHAZAD=m
+CONFIG_CRYPTO_ANUBIS=m
+# CONFIG_CRYPTO_SEED is not set
+CONFIG_CRYPTO_DEFLATE=y
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_CRC32C=m
+# CONFIG_CRYPTO_CAMELLIA is not set
+CONFIG_CRYPTO_TEST=m
+# CONFIG_CRYPTO_AUTHENC is not set
+# CONFIG_CRYPTO_HW is not set
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+CONFIG_CRC_CCITT=m
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+CONFIG_LIBCRC32C=m
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
diff --git a/arch/parisc/defconfig b/arch/parisc/defconfig
deleted file mode 100644
index 448a757..0000000
--- a/arch/parisc/defconfig
+++ /dev/null
@@ -1,1424 +0,0 @@
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.23
-# Fri Oct 12 20:54:57 2007
-#
-CONFIG_PARISC=y
-CONFIG_MMU=y
-CONFIG_STACK_GROWSUP=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_BUG=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_GENERIC_TIME=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-CONFIG_IRQ_PER_CPU=y
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-
-#
-# General setup
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-CONFIG_LOCALVERSION=""
-# CONFIG_LOCALVERSION_AUTO is not set
-CONFIG_SWAP=y
-CONFIG_SYSVIPC=y
-CONFIG_SYSVIPC_SYSCTL=y
-CONFIG_POSIX_MQUEUE=y
-# CONFIG_BSD_PROCESS_ACCT is not set
-# CONFIG_TASKSTATS is not set
-# CONFIG_USER_NS is not set
-# CONFIG_AUDIT is not set
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_LOG_BUF_SHIFT=16
-CONFIG_SYSFS_DEPRECATED=y
-# CONFIG_RELAY is not set
-CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE=""
-CONFIG_CC_OPTIMIZE_FOR_SIZE=y
-CONFIG_SYSCTL=y
-# CONFIG_EMBEDDED is not set
-CONFIG_SYSCTL_SYSCALL=y
-CONFIG_KALLSYMS=y
-CONFIG_KALLSYMS_ALL=y
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-CONFIG_FUTEX=y
-CONFIG_ANON_INODES=y
-CONFIG_EPOLL=y
-CONFIG_SIGNALFD=y
-CONFIG_EVENTFD=y
-CONFIG_SHMEM=y
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
-# CONFIG_SLOB is not set
-CONFIG_RT_MUTEXES=y
-# CONFIG_TINY_SHMEM is not set
-CONFIG_BASE_SMALL=0
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_MODULE_FORCE_UNLOAD=y
-# CONFIG_MODVERSIONS is not set
-# CONFIG_MODULE_SRCVERSION_ALL is not set
-CONFIG_KMOD=y
-CONFIG_BLOCK=y
-# CONFIG_LBD is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
-# CONFIG_BLK_DEV_BSG is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-CONFIG_DEFAULT_AS=y
-# CONFIG_DEFAULT_DEADLINE is not set
-# CONFIG_DEFAULT_CFQ is not set
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="anticipatory"
-
-#
-# Processor type and features
-#
-# CONFIG_PA7000 is not set
-CONFIG_PA7100LC=y
-# CONFIG_PA7200 is not set
-# CONFIG_PA7300LC is not set
-# CONFIG_PA8X00 is not set
-CONFIG_PA11=y
-CONFIG_PARISC_PAGE_SIZE_4KB=y
-# CONFIG_PARISC_PAGE_SIZE_16KB is not set
-# CONFIG_PARISC_PAGE_SIZE_64KB is not set
-# CONFIG_SMP is not set
-CONFIG_ARCH_FLATMEM_ENABLE=y
-# CONFIG_PREEMPT_NONE is not set
-CONFIG_PREEMPT_VOLUNTARY=y
-# CONFIG_PREEMPT is not set
-# CONFIG_HZ_100 is not set
-CONFIG_HZ_250=y
-# CONFIG_HZ_300 is not set
-# CONFIG_HZ_1000 is not set
-CONFIG_HZ=250
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
-# CONFIG_DISCONTIGMEM_MANUAL is not set
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4096
-# CONFIG_RESOURCES_64BIT is not set
-CONFIG_ZONE_DMA_FLAG=0
-CONFIG_VIRT_TO_BUS=y
-# CONFIG_HPUX is not set
-
-#
-# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
-#
-CONFIG_GSC=y
-# CONFIG_HPPB is not set
-CONFIG_IOMMU_CCIO=y
-CONFIG_GSC_LASI=y
-CONFIG_GSC_WAX=y
-CONFIG_EISA=y
-CONFIG_EISA_NAMES=y
-# CONFIG_ISA is not set
-CONFIG_PCI=y
-# CONFIG_ARCH_SUPPORTS_MSI is not set
-# CONFIG_PCI_DEBUG is not set
-CONFIG_GSC_DINO=y
-CONFIG_PCI_LBA=y
-CONFIG_IOSAPIC=y
-CONFIG_IOMMU_SBA=y
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
-CONFIG_PCCARD=y
-# CONFIG_PCMCIA_DEBUG is not set
-CONFIG_PCMCIA=y
-CONFIG_PCMCIA_LOAD_CIS=y
-CONFIG_PCMCIA_IOCTL=y
-CONFIG_CARDBUS=y
-
-#
-# PC-card bridges
-#
-CONFIG_YENTA=y
-CONFIG_YENTA_O2=y
-CONFIG_YENTA_RICOH=y
-CONFIG_YENTA_TI=y
-CONFIG_YENTA_ENE_TUNE=y
-CONFIG_YENTA_TOSHIBA=y
-CONFIG_PD6729=y
-CONFIG_I82092=y
-CONFIG_PCCARD_NONSTATIC=y
-# CONFIG_HOTPLUG_PCI is not set
-
-#
-# PA-RISC specific drivers
-#
-CONFIG_SUPERIO=y
-CONFIG_CHASSIS_LCD_LED=y
-CONFIG_PDC_CHASSIS=y
-CONFIG_PDC_CHASSIS_WARN=y
-CONFIG_PDC_STABLE=y
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-CONFIG_BINFMT_MISC=m
-
-#
-# Networking
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-CONFIG_PACKET_MMAP=y
-CONFIG_UNIX=y
-CONFIG_XFRM=y
-CONFIG_XFRM_USER=m
-# CONFIG_XFRM_SUB_POLICY is not set
-# CONFIG_XFRM_MIGRATE is not set
-CONFIG_NET_KEY=m
-# CONFIG_NET_KEY_MIGRATE is not set
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_FIB_HASH=y
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-CONFIG_IP_PNP_BOOTP=y
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_IP_MROUTE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-CONFIG_INET_AH=m
-CONFIG_INET_ESP=m
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_XFRM_TUNNEL is not set
-CONFIG_INET_TUNNEL=y
-CONFIG_INET_XFRM_MODE_TRANSPORT=y
-CONFIG_INET_XFRM_MODE_TUNNEL=y
-CONFIG_INET_XFRM_MODE_BEET=y
-# CONFIG_INET_LRO is not set
-CONFIG_INET_DIAG=m
-CONFIG_INET_TCP_DIAG=m
-# CONFIG_TCP_CONG_ADVANCED is not set
-CONFIG_TCP_CONG_CUBIC=y
-CONFIG_DEFAULT_TCP_CONG="cubic"
-# CONFIG_TCP_MD5SIG is not set
-CONFIG_IPV6=y
-# CONFIG_IPV6_PRIVACY is not set
-# CONFIG_IPV6_ROUTER_PREF is not set
-# CONFIG_IPV6_OPTIMISTIC_DAD is not set
-CONFIG_INET6_AH=y
-CONFIG_INET6_ESP=y
-CONFIG_INET6_IPCOMP=y
-# CONFIG_IPV6_MIP6 is not set
-CONFIG_INET6_XFRM_TUNNEL=y
-CONFIG_INET6_TUNNEL=y
-CONFIG_INET6_XFRM_MODE_TRANSPORT=y
-CONFIG_INET6_XFRM_MODE_TUNNEL=y
-CONFIG_INET6_XFRM_MODE_BEET=y
-# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
-CONFIG_IPV6_SIT=y
-# CONFIG_IPV6_TUNNEL is not set
-# CONFIG_IPV6_MULTIPLE_TABLES is not set
-# CONFIG_NETWORK_SECMARK is not set
-# CONFIG_NETFILTER is not set
-# CONFIG_IP_DCCP is not set
-# CONFIG_IP_SCTP is not set
-# CONFIG_TIPC is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-CONFIG_LLC=m
-CONFIG_LLC2=m
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-# CONFIG_AF_RXRPC is not set
-
-#
-# Wireless
-#
-# CONFIG_CFG80211 is not set
-# CONFIG_WIRELESS_EXT is not set
-# CONFIG_MAC80211 is not set
-# CONFIG_IEEE80211 is not set
-# CONFIG_RFKILL is not set
-# CONFIG_NET_9P is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-# CONFIG_STANDALONE is not set
-# CONFIG_PREVENT_FIRMWARE_BUILD is not set
-CONFIG_FW_LOADER=y
-# CONFIG_DEBUG_DRIVER is not set
-# CONFIG_DEBUG_DEVRES is not set
-# CONFIG_SYS_HYPERVISOR is not set
-# CONFIG_CONNECTOR is not set
-# CONFIG_MTD is not set
-CONFIG_PARPORT=y
-CONFIG_PARPORT_PC=m
-# CONFIG_PARPORT_SERIAL is not set
-# CONFIG_PARPORT_PC_FIFO is not set
-# CONFIG_PARPORT_PC_SUPERIO is not set
-CONFIG_PARPORT_PC_PCMCIA=m
-CONFIG_PARPORT_GSC=y
-# CONFIG_PARPORT_AX88796 is not set
-CONFIG_PARPORT_1284=y
-CONFIG_PARPORT_NOT_PC=y
-CONFIG_BLK_DEV=y
-# CONFIG_PARIDE is not set
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_UMEM is not set
-# CONFIG_BLK_DEV_COW_COMMON is not set
-CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_DEV_CRYPTOLOOP=y
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_SX8 is not set
-# CONFIG_BLK_DEV_UB is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_BLK_DEV_RAM_SIZE=6144
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-# CONFIG_CDROM_PKTCDVD is not set
-# CONFIG_ATA_OVER_ETH is not set
-CONFIG_MISC_DEVICES=y
-# CONFIG_PHANTOM is not set
-# CONFIG_EEPROM_93CX6 is not set
-# CONFIG_SGI_IOC4 is not set
-# CONFIG_TIFM_CORE is not set
-CONFIG_IDE=y
-CONFIG_BLK_DEV_IDE=y
-
-#
-# Please see Documentation/ide.txt for help/info on IDE drives
-#
-# CONFIG_BLK_DEV_IDE_SATA is not set
-CONFIG_BLK_DEV_IDEDISK=y
-CONFIG_IDEDISK_MULTI_MODE=y
-CONFIG_BLK_DEV_IDECS=y
-# CONFIG_BLK_DEV_DELKIN is not set
-CONFIG_BLK_DEV_IDECD=y
-# CONFIG_BLK_DEV_IDETAPE is not set
-# CONFIG_BLK_DEV_IDEFLOPPY is not set
-CONFIG_BLK_DEV_IDESCSI=y
-# CONFIG_IDE_TASK_IOCTL is not set
-CONFIG_IDE_PROC_FS=y
-
-#
-# IDE chipset support/bugfixes
-#
-CONFIG_IDE_GENERIC=y
-# CONFIG_BLK_DEV_PLATFORM is not set
-
-#
-# PCI IDE chipsets support
-#
-CONFIG_BLK_DEV_IDEPCI=y
-CONFIG_IDEPCI_SHARE_IRQ=y
-CONFIG_IDEPCI_PCIBUS_ORDER=y
-# CONFIG_BLK_DEV_OFFBOARD is not set
-CONFIG_BLK_DEV_GENERIC=y
-# CONFIG_BLK_DEV_OPTI621 is not set
-CONFIG_BLK_DEV_IDEDMA_PCI=y
-# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
-CONFIG_IDEDMA_ONLYDISK=y
-# CONFIG_BLK_DEV_AEC62XX is not set
-# CONFIG_BLK_DEV_ALI15X3 is not set
-# CONFIG_BLK_DEV_AMD74XX is not set
-# CONFIG_BLK_DEV_CMD64X is not set
-# CONFIG_BLK_DEV_TRIFLEX is not set
-# CONFIG_BLK_DEV_CY82C693 is not set
-# CONFIG_BLK_DEV_CS5520 is not set
-# CONFIG_BLK_DEV_CS5530 is not set
-# CONFIG_BLK_DEV_HPT34X is not set
-# CONFIG_BLK_DEV_HPT366 is not set
-# CONFIG_BLK_DEV_JMICRON is not set
-# CONFIG_BLK_DEV_SC1200 is not set
-# CONFIG_BLK_DEV_PIIX is not set
-# CONFIG_BLK_DEV_IT8213 is not set
-# CONFIG_BLK_DEV_IT821X is not set
-CONFIG_BLK_DEV_NS87415=y
-# CONFIG_BLK_DEV_PDC202XX_OLD is not set
-# CONFIG_BLK_DEV_PDC202XX_NEW is not set
-# CONFIG_BLK_DEV_SVWKS is not set
-# CONFIG_BLK_DEV_SIIMAGE is not set
-# CONFIG_BLK_DEV_SLC90E66 is not set
-# CONFIG_BLK_DEV_TRM290 is not set
-# CONFIG_BLK_DEV_VIA82CXXX is not set
-# CONFIG_BLK_DEV_TC86C001 is not set
-# CONFIG_IDE_ARM is not set
-CONFIG_BLK_DEV_IDEDMA=y
-# CONFIG_IDEDMA_IVB is not set
-# CONFIG_BLK_DEV_HD is not set
-
-#
-# SCSI device support
-#
-# CONFIG_RAID_ATTRS is not set
-CONFIG_SCSI=y
-CONFIG_SCSI_DMA=y
-# CONFIG_SCSI_TGT is not set
-# CONFIG_SCSI_NETLINK is not set
-CONFIG_SCSI_PROC_FS=y
-
-#
-# SCSI support type (disk, tape, CD-ROM)
-#
-CONFIG_BLK_DEV_SD=y
-CONFIG_CHR_DEV_ST=y
-# CONFIG_CHR_DEV_OSST is not set
-CONFIG_BLK_DEV_SR=y
-# CONFIG_BLK_DEV_SR_VENDOR is not set
-CONFIG_CHR_DEV_SG=y
-# CONFIG_CHR_DEV_SCH is not set
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
-# CONFIG_SCSI_MULTI_LUN is not set
-# CONFIG_SCSI_CONSTANTS is not set
-# CONFIG_SCSI_LOGGING is not set
-# CONFIG_SCSI_SCAN_ASYNC is not set
-CONFIG_SCSI_WAIT_SCAN=m
-
-#
-# SCSI Transports
-#
-CONFIG_SCSI_SPI_ATTRS=y
-# CONFIG_SCSI_FC_ATTRS is not set
-# CONFIG_SCSI_ISCSI_ATTRS is not set
-# CONFIG_SCSI_SAS_LIBSAS is not set
-CONFIG_SCSI_LOWLEVEL=y
-# CONFIG_ISCSI_TCP is not set
-# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
-# CONFIG_SCSI_3W_9XXX is not set
-# CONFIG_SCSI_ACARD is not set
-# CONFIG_SCSI_AHA1740 is not set
-# CONFIG_SCSI_AACRAID is not set
-# CONFIG_SCSI_AIC7XXX is not set
-# CONFIG_SCSI_AIC7XXX_OLD is not set
-# CONFIG_SCSI_AIC79XX is not set
-# CONFIG_SCSI_AIC94XX is not set
-# CONFIG_SCSI_DPT_I2O is not set
-# CONFIG_SCSI_ARCMSR is not set
-# CONFIG_MEGARAID_NEWGEN is not set
-# CONFIG_MEGARAID_LEGACY is not set
-# CONFIG_MEGARAID_SAS is not set
-# CONFIG_SCSI_HPTIOP is not set
-# CONFIG_SCSI_DMX3191D is not set
-# CONFIG_SCSI_FUTURE_DOMAIN is not set
-# CONFIG_SCSI_IPS is not set
-# CONFIG_SCSI_INITIO is not set
-# CONFIG_SCSI_INIA100 is not set
-# CONFIG_SCSI_PPA is not set
-# CONFIG_SCSI_IMM is not set
-CONFIG_SCSI_LASI700=y
-CONFIG_53C700_LE_ON_BE=y
-# CONFIG_SCSI_STEX is not set
-CONFIG_SCSI_SYM53C8XX_2=y
-CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
-CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
-CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
-CONFIG_SCSI_SYM53C8XX_MMIO=y
-CONFIG_SCSI_ZALON=y
-CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
-CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
-CONFIG_SCSI_NCR53C8XX_SYNC=20
-# CONFIG_SCSI_QLOGIC_1280 is not set
-# CONFIG_SCSI_QLA_FC is not set
-# CONFIG_SCSI_QLA_ISCSI is not set
-# CONFIG_SCSI_LPFC is not set
-# CONFIG_SCSI_SIM710 is not set
-# CONFIG_SCSI_DC395x is not set
-# CONFIG_SCSI_DC390T is not set
-# CONFIG_SCSI_NSP32 is not set
-# CONFIG_SCSI_DEBUG is not set
-# CONFIG_SCSI_SRP is not set
-# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
-# CONFIG_ATA is not set
-CONFIG_MD=y
-CONFIG_BLK_DEV_MD=y
-CONFIG_MD_LINEAR=y
-CONFIG_MD_RAID0=y
-CONFIG_MD_RAID1=y
-CONFIG_MD_RAID10=y
-# CONFIG_MD_RAID456 is not set
-# CONFIG_MD_MULTIPATH is not set
-# CONFIG_MD_FAULTY is not set
-CONFIG_BLK_DEV_DM=y
-# CONFIG_DM_DEBUG is not set
-# CONFIG_DM_CRYPT is not set
-# CONFIG_DM_SNAPSHOT is not set
-# CONFIG_DM_MIRROR is not set
-# CONFIG_DM_ZERO is not set
-# CONFIG_DM_MULTIPATH is not set
-# CONFIG_DM_DELAY is not set
-
-#
-# Fusion MPT device support
-#
-# CONFIG_FUSION is not set
-# CONFIG_FUSION_SPI is not set
-# CONFIG_FUSION_FC is not set
-# CONFIG_FUSION_SAS is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_FIREWIRE is not set
-# CONFIG_IEEE1394 is not set
-# CONFIG_I2O is not set
-CONFIG_NETDEVICES=y
-# CONFIG_NETDEVICES_MULTIQUEUE is not set
-CONFIG_DUMMY=m
-CONFIG_BONDING=m
-# CONFIG_MACVLAN is not set
-# CONFIG_EQUALIZER is not set
-CONFIG_TUN=m
-# CONFIG_VETH is not set
-# CONFIG_IP1000 is not set
-# CONFIG_ARCNET is not set
-# CONFIG_PHYLIB is not set
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=m
-CONFIG_LASI_82596=y
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_CASSINI is not set
-# CONFIG_NET_VENDOR_3COM is not set
-# CONFIG_NET_VENDOR_SMC is not set
-CONFIG_NET_TULIP=y
-# CONFIG_DE2104X is not set
-CONFIG_TULIP=y
-# CONFIG_TULIP_MWI is not set
-# CONFIG_TULIP_MMIO is not set
-# CONFIG_TULIP_NAPI is not set
-# CONFIG_DE4X5 is not set
-# CONFIG_WINBOND_840 is not set
-# CONFIG_DM9102 is not set
-# CONFIG_ULI526X is not set
-# CONFIG_PCMCIA_XIRCOM is not set
-# CONFIG_PCMCIA_XIRTULIP is not set
-# CONFIG_DEPCA is not set
-# CONFIG_HP100 is not set
-# CONFIG_IBM_NEW_EMAC_ZMII is not set
-# CONFIG_IBM_NEW_EMAC_RGMII is not set
-# CONFIG_IBM_NEW_EMAC_TAH is not set
-# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
-CONFIG_NET_PCI=y
-# CONFIG_PCNET32 is not set
-# CONFIG_AMD8111_ETH is not set
-# CONFIG_ADAPTEC_STARFIRE is not set
-# CONFIG_AC3200 is not set
-# CONFIG_B44 is not set
-# CONFIG_FORCEDETH is not set
-# CONFIG_EEPRO100 is not set
-# CONFIG_E100 is not set
-# CONFIG_LNE390 is not set
-# CONFIG_FEALNX is not set
-# CONFIG_NATSEMI is not set
-# CONFIG_NE2K_PCI is not set
-# CONFIG_NE3210 is not set
-# CONFIG_ES3210 is not set
-# CONFIG_8139CP is not set
-# CONFIG_8139TOO is not set
-# CONFIG_SIS900 is not set
-# CONFIG_EPIC100 is not set
-# CONFIG_SUNDANCE is not set
-# CONFIG_TLAN is not set
-# CONFIG_VIA_RHINE is not set
-# CONFIG_SC92031 is not set
-# CONFIG_NET_POCKET is not set
-CONFIG_NETDEV_1000=y
-CONFIG_ACENIC=y
-# CONFIG_ACENIC_OMIT_TIGON_I is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-# CONFIG_E1000E is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
-# CONFIG_SIS190 is not set
-# CONFIG_SKGE is not set
-# CONFIG_SKY2 is not set
-# CONFIG_SK98LIN is not set
-# CONFIG_VIA_VELOCITY is not set
-CONFIG_TIGON3=y
-# CONFIG_BNX2 is not set
-# CONFIG_QLA3XXX is not set
-# CONFIG_ATL1 is not set
-CONFIG_NETDEV_10000=y
-# CONFIG_CHELSIO_T1 is not set
-# CONFIG_CHELSIO_T3 is not set
-# CONFIG_IXGBE is not set
-# CONFIG_IXGB is not set
-# CONFIG_S2IO is not set
-# CONFIG_MYRI10GE is not set
-# CONFIG_NETXEN_NIC is not set
-# CONFIG_NIU is not set
-# CONFIG_MLX4_CORE is not set
-# CONFIG_TEHUTI is not set
-# CONFIG_TR is not set
-
-#
-# Wireless LAN
-#
-# CONFIG_WLAN_PRE80211 is not set
-# CONFIG_WLAN_80211 is not set
-
-#
-# USB Network Adapters
-#
-# CONFIG_USB_CATC is not set
-# CONFIG_USB_KAWETH is not set
-# CONFIG_USB_PEGASUS is not set
-# CONFIG_USB_RTL8150 is not set
-# CONFIG_USB_USBNET_MII is not set
-# CONFIG_USB_USBNET is not set
-CONFIG_NET_PCMCIA=y
-# CONFIG_PCMCIA_3C589 is not set
-# CONFIG_PCMCIA_3C574 is not set
-# CONFIG_PCMCIA_FMVJ18X is not set
-# CONFIG_PCMCIA_PCNET is not set
-# CONFIG_PCMCIA_NMCLAN is not set
-# CONFIG_PCMCIA_SMC91C92 is not set
-# CONFIG_PCMCIA_XIRC2PS is not set
-# CONFIG_PCMCIA_AXNET is not set
-# CONFIG_WAN is not set
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
-# CONFIG_PLIP is not set
-CONFIG_PPP=m
-# CONFIG_PPP_MULTILINK is not set
-# CONFIG_PPP_FILTER is not set
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_SYNC_TTY=m
-CONFIG_PPP_DEFLATE=m
-CONFIG_PPP_BSDCOMP=m
-# CONFIG_PPP_MPPE is not set
-CONFIG_PPPOE=m
-# CONFIG_PPPOL2TP is not set
-# CONFIG_SLIP is not set
-CONFIG_SLHC=m
-# CONFIG_NET_FC is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_ISDN is not set
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-# CONFIG_INPUT_POLLDEV is not set
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-CONFIG_INPUT_MOUSEDEV_PSAUX=y
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-CONFIG_INPUT_KEYBOARD=y
-CONFIG_KEYBOARD_ATKBD=y
-CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
-# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
-# CONFIG_KEYBOARD_SUNKBD is not set
-# CONFIG_KEYBOARD_LKKBD is not set
-# CONFIG_KEYBOARD_XTKBD is not set
-# CONFIG_KEYBOARD_NEWTON is not set
-# CONFIG_KEYBOARD_STOWAWAY is not set
-# CONFIG_KEYBOARD_HIL_OLD is not set
-CONFIG_KEYBOARD_HIL=y
-CONFIG_INPUT_MOUSE=y
-CONFIG_MOUSE_PS2=y
-CONFIG_MOUSE_PS2_ALPS=y
-CONFIG_MOUSE_PS2_LOGIPS2PP=y
-CONFIG_MOUSE_PS2_SYNAPTICS=y
-CONFIG_MOUSE_PS2_LIFEBOOK=y
-CONFIG_MOUSE_PS2_TRACKPOINT=y
-# CONFIG_MOUSE_PS2_TOUCHKIT is not set
-CONFIG_MOUSE_SERIAL=y
-# CONFIG_MOUSE_APPLETOUCH is not set
-# CONFIG_MOUSE_VSXXXAA is not set
-CONFIG_MOUSE_HIL=y
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TABLET is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-CONFIG_SERIO=y
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_PARKBD is not set
-CONFIG_SERIO_GSCPS2=y
-CONFIG_HP_SDC=y
-CONFIG_HIL_MLC=y
-# CONFIG_SERIO_PCIPS2 is not set
-CONFIG_SERIO_LIBPS2=y
-# CONFIG_SERIO_RAW is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-# CONFIG_VT_HW_CONSOLE_BINDING is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_GSC=y
-CONFIG_SERIAL_8250_PCI=y
-CONFIG_SERIAL_8250_CS=y
-CONFIG_SERIAL_8250_NR_UARTS=17
-CONFIG_SERIAL_8250_RUNTIME_UARTS=4
-CONFIG_SERIAL_8250_EXTENDED=y
-CONFIG_SERIAL_8250_MANY_PORTS=y
-CONFIG_SERIAL_8250_SHARE_IRQ=y
-# CONFIG_SERIAL_8250_DETECT_IRQ is not set
-# CONFIG_SERIAL_8250_RSA is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_MUX=y
-CONFIG_SERIAL_MUX_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-# CONFIG_SERIAL_JSM is not set
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=64
-CONFIG_PRINTER=m
-# CONFIG_LP_CONSOLE is not set
-CONFIG_PPDEV=m
-# CONFIG_TIPAR is not set
-# CONFIG_IPMI_HANDLER is not set
-# CONFIG_WATCHDOG is not set
-# CONFIG_HW_RANDOM is not set
-CONFIG_GEN_RTC=y
-CONFIG_GEN_RTC_X=y
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-# CONFIG_AGP is not set
-# CONFIG_DRM is not set
-
-#
-# PCMCIA character devices
-#
-# CONFIG_SYNCLINK_CS is not set
-# CONFIG_CARDMAN_4000 is not set
-# CONFIG_CARDMAN_4040 is not set
-# CONFIG_RAW_DRIVER is not set
-# CONFIG_TCG_TPM is not set
-CONFIG_DEVPORT=y
-# CONFIG_I2C is not set
-
-#
-# SPI support
-#
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
-# CONFIG_W1 is not set
-# CONFIG_POWER_SUPPLY is not set
-# CONFIG_HWMON is not set
-
-#
-# Sonics Silicon Backplane
-#
-CONFIG_SSB_POSSIBLE=y
-# CONFIG_SSB is not set
-
-#
-# Multifunction device drivers
-#
-# CONFIG_MFD_SM501 is not set
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-# CONFIG_DVB_CORE is not set
-# CONFIG_DAB is not set
-
-#
-# Graphics support
-#
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Display device support
-#
-# CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_VGASTATE is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
-CONFIG_FB=y
-# CONFIG_FIRMWARE_EDID is not set
-# CONFIG_FB_DDC is not set
-CONFIG_FB_CFB_FILLRECT=y
-CONFIG_FB_CFB_COPYAREA=y
-CONFIG_FB_CFB_IMAGEBLIT=y
-# CONFIG_FB_SYS_FILLRECT is not set
-# CONFIG_FB_SYS_COPYAREA is not set
-# CONFIG_FB_SYS_IMAGEBLIT is not set
-# CONFIG_FB_SYS_FOPS is not set
-CONFIG_FB_DEFERRED_IO=y
-# CONFIG_FB_SVGALIB is not set
-# CONFIG_FB_MACMODES is not set
-# CONFIG_FB_BACKLIGHT is not set
-CONFIG_FB_MODE_HELPERS=y
-CONFIG_FB_TILEBLITTING=y
-
-#
-# Frame buffer hardware drivers
-#
-# CONFIG_FB_CIRRUS is not set
-# CONFIG_FB_PM2 is not set
-# CONFIG_FB_CYBER2000 is not set
-# CONFIG_FB_ASILIANT is not set
-# CONFIG_FB_IMSTT is not set
-CONFIG_FB_STI=y
-# CONFIG_FB_S1D13XXX is not set
-# CONFIG_FB_NVIDIA is not set
-# CONFIG_FB_RIVA is not set
-# CONFIG_FB_MATROX is not set
-# CONFIG_FB_RADEON is not set
-# CONFIG_FB_ATY128 is not set
-# CONFIG_FB_ATY is not set
-# CONFIG_FB_S3 is not set
-# CONFIG_FB_SAVAGE is not set
-# CONFIG_FB_SIS is not set
-# CONFIG_FB_NEOMAGIC is not set
-# CONFIG_FB_KYRO is not set
-# CONFIG_FB_3DFX is not set
-# CONFIG_FB_VOODOO1 is not set
-# CONFIG_FB_VT8623 is not set
-# CONFIG_FB_TRIDENT is not set
-# CONFIG_FB_ARK is not set
-# CONFIG_FB_PM3 is not set
-# CONFIG_FB_VIRTUAL is not set
-
-#
-# Console display driver support
-#
-CONFIG_DUMMY_CONSOLE=y
-CONFIG_DUMMY_CONSOLE_COLUMNS=128
-CONFIG_DUMMY_CONSOLE_ROWS=48
-CONFIG_FRAMEBUFFER_CONSOLE=y
-# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
-# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
-CONFIG_STI_CONSOLE=y
-CONFIG_FONTS=y
-# CONFIG_FONT_8x8 is not set
-CONFIG_FONT_8x16=y
-# CONFIG_FONT_6x11 is not set
-# CONFIG_FONT_7x14 is not set
-# CONFIG_FONT_PEARL_8x8 is not set
-# CONFIG_FONT_ACORN_8x8 is not set
-# CONFIG_FONT_MINI_4x6 is not set
-# CONFIG_FONT_SUN8x16 is not set
-# CONFIG_FONT_SUN12x22 is not set
-# CONFIG_FONT_10x18 is not set
-CONFIG_LOGO=y
-# CONFIG_LOGO_LINUX_MONO is not set
-# CONFIG_LOGO_LINUX_VGA16 is not set
-# CONFIG_LOGO_LINUX_CLUT224 is not set
-CONFIG_LOGO_PARISC_CLUT224=y
-
-#
-# Sound
-#
-CONFIG_SOUND=y
-
-#
-# Advanced Linux Sound Architecture
-#
-CONFIG_SND=y
-CONFIG_SND_TIMER=y
-CONFIG_SND_PCM=y
-CONFIG_SND_SEQUENCER=y
-# CONFIG_SND_SEQ_DUMMY is not set
-CONFIG_SND_OSSEMUL=y
-CONFIG_SND_MIXER_OSS=y
-CONFIG_SND_PCM_OSS=y
-CONFIG_SND_PCM_OSS_PLUGINS=y
-CONFIG_SND_SEQUENCER_OSS=y
-CONFIG_SND_DYNAMIC_MINORS=y
-CONFIG_SND_SUPPORT_OLD_API=y
-CONFIG_SND_VERBOSE_PROCFS=y
-# CONFIG_SND_VERBOSE_PRINTK is not set
-# CONFIG_SND_DEBUG is not set
-
-#
-# Generic devices
-#
-CONFIG_SND_AC97_CODEC=y
-# CONFIG_SND_DUMMY is not set
-# CONFIG_SND_VIRMIDI is not set
-# CONFIG_SND_MTPAV is not set
-# CONFIG_SND_MTS64 is not set
-# CONFIG_SND_SERIAL_U16550 is not set
-# CONFIG_SND_MPU401 is not set
-# CONFIG_SND_PORTMAN2X4 is not set
-
-#
-# PCI devices
-#
-CONFIG_SND_AD1889=y
-# CONFIG_SND_ALS300 is not set
-# CONFIG_SND_ALI5451 is not set
-# CONFIG_SND_ATIIXP is not set
-# CONFIG_SND_ATIIXP_MODEM is not set
-# CONFIG_SND_AU8810 is not set
-# CONFIG_SND_AU8820 is not set
-# CONFIG_SND_AU8830 is not set
-# CONFIG_SND_AZT3328 is not set
-# CONFIG_SND_BT87X is not set
-# CONFIG_SND_CA0106 is not set
-# CONFIG_SND_CMIPCI is not set
-# CONFIG_SND_CS4281 is not set
-# CONFIG_SND_CS46XX is not set
-# CONFIG_SND_DARLA20 is not set
-# CONFIG_SND_GINA20 is not set
-# CONFIG_SND_LAYLA20 is not set
-# CONFIG_SND_DARLA24 is not set
-# CONFIG_SND_GINA24 is not set
-# CONFIG_SND_LAYLA24 is not set
-# CONFIG_SND_MONA is not set
-# CONFIG_SND_MIA is not set
-# CONFIG_SND_ECHO3G is not set
-# CONFIG_SND_INDIGO is not set
-# CONFIG_SND_INDIGOIO is not set
-# CONFIG_SND_INDIGODJ is not set
-# CONFIG_SND_EMU10K1 is not set
-# CONFIG_SND_EMU10K1X is not set
-# CONFIG_SND_ENS1370 is not set
-# CONFIG_SND_ENS1371 is not set
-# CONFIG_SND_ES1938 is not set
-# CONFIG_SND_ES1968 is not set
-# CONFIG_SND_FM801 is not set
-# CONFIG_SND_HDA_INTEL is not set
-# CONFIG_SND_HDSP is not set
-# CONFIG_SND_HDSPM is not set
-# CONFIG_SND_ICE1712 is not set
-# CONFIG_SND_ICE1724 is not set
-# CONFIG_SND_INTEL8X0 is not set
-# CONFIG_SND_INTEL8X0M is not set
-# CONFIG_SND_KORG1212 is not set
-# CONFIG_SND_MAESTRO3 is not set
-# CONFIG_SND_MIXART is not set
-# CONFIG_SND_NM256 is not set
-# CONFIG_SND_PCXHR is not set
-# CONFIG_SND_RIPTIDE is not set
-# CONFIG_SND_RME32 is not set
-# CONFIG_SND_RME96 is not set
-# CONFIG_SND_RME9652 is not set
-# CONFIG_SND_SONICVIBES is not set
-# CONFIG_SND_TRIDENT is not set
-# CONFIG_SND_VIA82XX is not set
-# CONFIG_SND_VIA82XX_MODEM is not set
-# CONFIG_SND_VX222 is not set
-# CONFIG_SND_YMFPCI is not set
-# CONFIG_SND_AC97_POWER_SAVE is not set
-
-#
-# USB devices
-#
-# CONFIG_SND_USB_AUDIO is not set
-# CONFIG_SND_USB_CAIAQ is not set
-
-#
-# PCMCIA devices
-#
-# CONFIG_SND_VXPOCKET is not set
-# CONFIG_SND_PDAUDIOCF is not set
-
-#
-# GSC devices
-#
-CONFIG_SND_HARMONY=y
-
-#
-# System on Chip audio support
-#
-# CONFIG_SND_SOC is not set
-
-#
-# SoC Audio support for SuperH
-#
-
-#
-# Open Sound System
-#
-# CONFIG_SOUND_PRIME is not set
-CONFIG_AC97_BUS=y
-CONFIG_HID_SUPPORT=y
-CONFIG_HID=y
-CONFIG_HID_DEBUG=y
-
-#
-# USB Input Devices
-#
-CONFIG_USB_HID=y
-# CONFIG_USB_HIDINPUT_POWERBOOK is not set
-# CONFIG_HID_FF is not set
-# CONFIG_USB_HIDDEV is not set
-CONFIG_USB_SUPPORT=y
-CONFIG_USB_ARCH_HAS_HCD=y
-CONFIG_USB_ARCH_HAS_OHCI=y
-CONFIG_USB_ARCH_HAS_EHCI=y
-CONFIG_USB=y
-# CONFIG_USB_DEBUG is not set
-
-#
-# Miscellaneous USB options
-#
-CONFIG_USB_DEVICEFS=y
-CONFIG_USB_DEVICE_CLASS=y
-# CONFIG_USB_DYNAMIC_MINORS is not set
-# CONFIG_USB_OTG is not set
-
-#
-# USB Host Controller Drivers
-#
-# CONFIG_USB_EHCI_HCD is not set
-# CONFIG_USB_ISP116X_HCD is not set
-CONFIG_USB_OHCI_HCD=y
-# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
-# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
-CONFIG_USB_OHCI_LITTLE_ENDIAN=y
-CONFIG_USB_UHCI_HCD=y
-# CONFIG_USB_SL811_HCD is not set
-# CONFIG_USB_R8A66597_HCD is not set
-
-#
-# USB Device Class drivers
-#
-# CONFIG_USB_ACM is not set
-# CONFIG_USB_PRINTER is not set
-
-#
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
-#
-
-#
-# may also be needed; see USB_STORAGE Help for more information
-#
-# CONFIG_USB_STORAGE is not set
-# CONFIG_USB_LIBUSUAL is not set
-
-#
-# USB Imaging devices
-#
-# CONFIG_USB_MDC800 is not set
-# CONFIG_USB_MICROTEK is not set
-CONFIG_USB_MON=y
-
-#
-# USB port drivers
-#
-# CONFIG_USB_USS720 is not set
-
-#
-# USB Serial Converter support
-#
-# CONFIG_USB_SERIAL is not set
-
-#
-# USB Miscellaneous drivers
-#
-# CONFIG_USB_EMI62 is not set
-# CONFIG_USB_EMI26 is not set
-# CONFIG_USB_ADUTUX is not set
-# CONFIG_USB_AUERSWALD is not set
-# CONFIG_USB_RIO500 is not set
-# CONFIG_USB_LEGOTOWER is not set
-# CONFIG_USB_LCD is not set
-# CONFIG_USB_BERRY_CHARGE is not set
-# CONFIG_USB_LED is not set
-# CONFIG_USB_CYPRESS_CY7C63 is not set
-# CONFIG_USB_CYTHERM is not set
-# CONFIG_USB_PHIDGET is not set
-# CONFIG_USB_IDMOUSE is not set
-# CONFIG_USB_FTDI_ELAN is not set
-# CONFIG_USB_APPLEDISPLAY is not set
-# CONFIG_USB_LD is not set
-# CONFIG_USB_TRANCEVIBRATOR is not set
-# CONFIG_USB_IOWARRIOR is not set
-# CONFIG_USB_TEST is not set
-
-#
-# USB DSL modem support
-#
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-# CONFIG_MMC is not set
-# CONFIG_NEW_LEDS is not set
-# CONFIG_INFINIBAND is not set
-# CONFIG_RTC_CLASS is not set
-
-#
-# DMA Engine support
-#
-# CONFIG_DMA_ENGINE is not set
-
-#
-# DMA Clients
-#
-
-#
-# DMA Devices
-#
-# CONFIG_AUXDISPLAY is not set
-
-#
-# Userspace I/O
-#
-# CONFIG_UIO is not set
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
-# CONFIG_EXT4DEV_FS is not set
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-CONFIG_FS_POSIX_ACL=y
-# CONFIG_XFS_FS is not set
-# CONFIG_GFS2_FS is not set
-# CONFIG_OCFS2_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
-CONFIG_INOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-CONFIG_AUTOFS_FS=y
-# CONFIG_AUTOFS4_FS is not set
-# CONFIG_FUSE_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-CONFIG_ISO9660_FS=y
-CONFIG_JOLIET=y
-# CONFIG_ZISOFS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-CONFIG_FAT_FS=y
-# CONFIG_MSDOS_FS is not set
-CONFIG_VFAT_FS=y
-CONFIG_FAT_DEFAULT_CODEPAGE=437
-CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_PROC_SYSCTL=y
-CONFIG_SYSFS=y
-CONFIG_TMPFS=y
-# CONFIG_TMPFS_POSIX_ACL is not set
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-# CONFIG_CONFIGFS_FS is not set
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_ECRYPT_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V3_ACL is not set
-# CONFIG_NFS_V4 is not set
-# CONFIG_NFS_DIRECTIO is not set
-CONFIG_NFSD=y
-CONFIG_NFSD_V3=y
-# CONFIG_NFSD_V3_ACL is not set
-CONFIG_NFSD_V4=y
-CONFIG_NFSD_TCP=y
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-CONFIG_EXPORTFS=y
-CONFIG_NFS_COMMON=y
-CONFIG_SUNRPC=y
-CONFIG_SUNRPC_GSS=y
-# CONFIG_SUNRPC_BIND34 is not set
-CONFIG_RPCSEC_GSS_KRB5=y
-CONFIG_RPCSEC_GSS_SPKM3=m
-CONFIG_SMB_FS=m
-CONFIG_SMB_NLS_DEFAULT=y
-CONFIG_SMB_NLS_REMOTE="cp437"
-CONFIG_CIFS=m
-# CONFIG_CIFS_STATS is not set
-# CONFIG_CIFS_WEAK_PW_HASH is not set
-# CONFIG_CIFS_XATTR is not set
-# CONFIG_CIFS_DEBUG2 is not set
-# CONFIG_CIFS_EXPERIMENTAL is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-CONFIG_NLS=y
-CONFIG_NLS_DEFAULT="iso8859-1"
-CONFIG_NLS_CODEPAGE_437=y
-CONFIG_NLS_CODEPAGE_737=m
-CONFIG_NLS_CODEPAGE_775=m
-CONFIG_NLS_CODEPAGE_850=m
-CONFIG_NLS_CODEPAGE_852=m
-CONFIG_NLS_CODEPAGE_855=m
-CONFIG_NLS_CODEPAGE_857=m
-CONFIG_NLS_CODEPAGE_860=m
-CONFIG_NLS_CODEPAGE_861=m
-CONFIG_NLS_CODEPAGE_862=m
-CONFIG_NLS_CODEPAGE_863=m
-CONFIG_NLS_CODEPAGE_864=m
-CONFIG_NLS_CODEPAGE_865=m
-CONFIG_NLS_CODEPAGE_866=m
-CONFIG_NLS_CODEPAGE_869=m
-CONFIG_NLS_CODEPAGE_936=m
-CONFIG_NLS_CODEPAGE_950=m
-CONFIG_NLS_CODEPAGE_932=m
-CONFIG_NLS_CODEPAGE_949=m
-CONFIG_NLS_CODEPAGE_874=m
-CONFIG_NLS_ISO8859_8=m
-CONFIG_NLS_CODEPAGE_1250=y
-CONFIG_NLS_CODEPAGE_1251=m
-CONFIG_NLS_ASCII=m
-CONFIG_NLS_ISO8859_1=y
-CONFIG_NLS_ISO8859_2=m
-CONFIG_NLS_ISO8859_3=m
-CONFIG_NLS_ISO8859_4=m
-CONFIG_NLS_ISO8859_5=m
-CONFIG_NLS_ISO8859_6=m
-CONFIG_NLS_ISO8859_7=m
-CONFIG_NLS_ISO8859_9=m
-CONFIG_NLS_ISO8859_13=m
-CONFIG_NLS_ISO8859_14=m
-CONFIG_NLS_ISO8859_15=m
-CONFIG_NLS_KOI8_R=m
-CONFIG_NLS_KOI8_U=m
-CONFIG_NLS_UTF8=y
-
-#
-# Distributed Lock Manager
-#
-# CONFIG_DLM is not set
-
-#
-# Profiling support
-#
-CONFIG_PROFILING=y
-CONFIG_OPROFILE=m
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_ENABLE_MUST_CHECK=y
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
-CONFIG_HEADERS_CHECK=y
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_DEBUG_SHIRQ is not set
-CONFIG_DETECT_SOFTLOCKUP=y
-CONFIG_SCHED_DEBUG=y
-# CONFIG_SCHEDSTATS is not set
-# CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
-# CONFIG_DEBUG_RT_MUTEXES is not set
-# CONFIG_RT_MUTEX_TESTER is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-CONFIG_DEBUG_MUTEXES=y
-# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
-# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
-# CONFIG_DEBUG_KOBJECT is not set
-CONFIG_DEBUG_BUGVERBOSE=y
-# CONFIG_DEBUG_INFO is not set
-# CONFIG_DEBUG_VM is not set
-# CONFIG_DEBUG_LIST is not set
-CONFIG_FORCED_INLINING=y
-# CONFIG_RCU_TORTURE_TEST is not set
-# CONFIG_FAULT_INJECTION is not set
-# CONFIG_DEBUG_RODATA is not set
-
-#
-# Security options
-#
-CONFIG_KEYS=y
-CONFIG_KEYS_DEBUG_PROC_KEYS=y
-# CONFIG_SECURITY is not set
-CONFIG_CRYPTO=y
-CONFIG_CRYPTO_ALGAPI=y
-CONFIG_CRYPTO_BLKCIPHER=y
-CONFIG_CRYPTO_HASH=y
-CONFIG_CRYPTO_MANAGER=y
-CONFIG_CRYPTO_HMAC=y
-# CONFIG_CRYPTO_XCBC is not set
-CONFIG_CRYPTO_NULL=m
-CONFIG_CRYPTO_MD4=m
-CONFIG_CRYPTO_MD5=y
-CONFIG_CRYPTO_SHA1=y
-CONFIG_CRYPTO_SHA256=m
-CONFIG_CRYPTO_SHA512=m
-CONFIG_CRYPTO_WP512=m
-CONFIG_CRYPTO_TGR192=m
-# CONFIG_CRYPTO_GF128MUL is not set
-# CONFIG_CRYPTO_ECB is not set
-CONFIG_CRYPTO_CBC=y
-# CONFIG_CRYPTO_PCBC is not set
-# CONFIG_CRYPTO_LRW is not set
-# CONFIG_CRYPTO_XTS is not set
-# CONFIG_CRYPTO_CRYPTD is not set
-CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_FCRYPT is not set
-CONFIG_CRYPTO_BLOWFISH=m
-CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_TWOFISH_COMMON=m
-CONFIG_CRYPTO_SERPENT=m
-CONFIG_CRYPTO_AES=m
-CONFIG_CRYPTO_CAST5=m
-CONFIG_CRYPTO_CAST6=m
-CONFIG_CRYPTO_TEA=m
-CONFIG_CRYPTO_ARC4=m
-CONFIG_CRYPTO_KHAZAD=m
-CONFIG_CRYPTO_ANUBIS=m
-# CONFIG_CRYPTO_SEED is not set
-CONFIG_CRYPTO_DEFLATE=y
-CONFIG_CRYPTO_MICHAEL_MIC=m
-CONFIG_CRYPTO_CRC32C=m
-# CONFIG_CRYPTO_CAMELLIA is not set
-CONFIG_CRYPTO_TEST=m
-# CONFIG_CRYPTO_AUTHENC is not set
-# CONFIG_CRYPTO_HW is not set
-
-#
-# Library routines
-#
-CONFIG_BITREVERSE=y
-CONFIG_CRC_CCITT=m
-# CONFIG_CRC16 is not set
-# CONFIG_CRC_ITU_T is not set
-CONFIG_CRC32=y
-# CONFIG_CRC7 is not set
-CONFIG_LIBCRC32C=m
-CONFIG_ZLIB_INFLATE=y
-CONFIG_ZLIB_DEFLATE=y
-CONFIG_PLIST=y
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
-CONFIG_HAS_DMA=y


From - Thu Nov 08 21:02:00 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [patch 5/6] PARISC: move PERR & SERR enables out of
	pcibios_enable_resources()
Date: Thu, 28 Feb 2008 10:31:25 -0700
Lines: 45
Approved: news@gmane.org
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Cc: linux-pci@atrey.karlin.mff.cuni.cz, linux-arch@vger.kernel.org,
	Russell King <rmk@arm.linux.org.uk>,
	linux-arm-kernel@lists.arm.linux.org.uk,
	Kyle McMartin <kyle@parisc-linux.org>,
	Matthew Wilcox <matthew@wil.cx>,
	Grant Grundler <grundler@parisc-linux.org>,
	linux-parisc@vger.kernel.org, Paul Mackerras <paulus@samba.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	linuxppc-dev@ozlabs.org, Chris Zankel <chris@zankel.net>
To: Bjorn Helgaas <bjorn.helgaas@hp.com>
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On Wed, Feb 27, 2008 at 05:04:42PM -0700, Bjorn Helgaas wrote:
> Move PERR and SERR enables from pcibios_enable_resources() to
> platform_pci_enable_device() so the former matches other
> architectures and can be shared.
> 
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>

Ack-By: Grant Grundler <grundler@parisc-linux.org>

This patch sequence is heading in the right direction.
I've not tested this particular one yet but I'm pretty sure it's ok.
I'll fixup any breakage for parisc.

...
> +/*
> + * A driver is enabling the device.  We enable the PERR and SERR bits
> + * unconditionally.  Drivers that do not need parity (eg graphics and
> + * possibly networking) can clear these bits if they want.
> + */
> +static int platform_pci_enable_device(struct pci_dev *dev)

Thanks for preserving this comment.

In general, I'm wondering if the check for device class would be
sufficient here to NOT enable PERR/SERR for graphics automatically.
While disabling PERR was "the right thing" for older "mostly write"
devices of the 1990's and early 2000, it might not be correct for
current 3-D graphics devices which use host mem to buffer processed
results. I'm thinking of Intel graphics controllers in particular
but I don't know any details of how they actually work.

I'm also a bit concerned about this now becuase (IIRC) AGP didn't
implement parity though it looked like PCI protocol. PCI-e certainly
does but it's possible BIOS/Firmware disable parity generation
on the host bridge when connected to a gfx device.
We wouldn't want to enable parity checking on a PCI-e gfx device in this
case and I hope someone (perhaps at Intel) could double check this.

thanks,
grant
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [patch 5/6] PARISC: move PERR & SERR enables out of
	pcibios_enable_resources()
Date: Thu, 28 Feb 2008 12:38:16 -0500
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Cc: linux-pci@atrey.karlin.mff.cuni.cz, linux-arch@vger.kernel.org,
	Russell King <rmk@arm.linux.org.uk>,
	linux-arm-kernel@lists.arm.linux.org.uk,
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	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	linuxppc-dev@ozlabs.org, Chris Zankel <chris@zankel.net>
To: Bjorn Helgaas <bjorn.helgaas@hp.com>
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On Wed, Feb 27, 2008 at 05:04:42PM -0700, Bjorn Helgaas wrote:
> Move PERR and SERR enables from pcibios_enable_resources() to
> platform_pci_enable_device() so the former matches other
> architectures and can be shared.
> 

I don't have any problems with this, but I think the naming needs to
change. pcibios_* namespace should probably remain arch dependent.
Renaming the unified implementation to pci_enable_resources, and adding
a weak function pcibios_enable_resources that can be overridden by
parisc and arm to enable PERR/SERR after calling the generic
pci_enable_resources function. No?

regards, Kyle
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From - Thu Nov 08 21:02:01 2018
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From: David Howells <dhowells@redhat.com>
Newsgroups: gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel
Subject: Re: [patch 6/6] PCI: consolidate several pcibios_enable_resources()
	implementations
Date: Thu, 28 Feb 2008 17:55:33 +0000
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To: Bjorn Helgaas <bjorn.helgaas@hp.com>
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Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:

> 
>     frv: checks only 6 resources at (1), has a different ROM
> 	resource check at (4) and (6) that ignores IORESOURCE_ROM_ENABLE
> ...
>     mn10300: checks only 6 resources at (1), has no IORESOURCE_{IO,MEM}
> 	check at (3), has a different ROM resource check at (4) and (6)
> 	that ignores IORESOURCE_ROM_ENABLE

Both parts:

Acked-by: David Howells <dhowells@redhat.com>

From - Thu Nov 08 21:02:01 2018
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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH -mm 1/3] export iommu_is_span_boundary helper function
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Cc: linux-parisc@vger.kernel.org, tomof@acm.org,
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	Andrew Morton <akpm@linux-foundation.org>
To: linux-kernel@vger.kernel.org
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iommu_is_span_boundary is used internally in the IOMMU helper
(lib/iommu-helper.c), a primitive function that judges whether a
memory area spans LLD's segment boundary or not.

It's difficult to convert some IOMMUs to use the IOMMU helper but
iommu_is_span_boundary is still useful for them. So this patch exports
it.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 include/linux/iommu-helper.h |    3 +++
 lib/iommu-helper.c           |   10 ++++++----
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/include/linux/iommu-helper.h b/include/linux/iommu-helper.h
index 4dd4c04..c975caf 100644
--- a/include/linux/iommu-helper.h
+++ b/include/linux/iommu-helper.h
@@ -1,3 +1,6 @@
+extern int iommu_is_span_boundary(unsigned int index, unsigned int nr,
+				  unsigned long shift,
+				  unsigned long boundary_size);
 extern unsigned long iommu_area_alloc(unsigned long *map, unsigned long size,
 				      unsigned long start, unsigned int nr,
 				      unsigned long shift,
diff --git a/lib/iommu-helper.c b/lib/iommu-helper.c
index 495575a..a3b8d4c 100644
--- a/lib/iommu-helper.c
+++ b/lib/iommu-helper.c
@@ -40,10 +40,12 @@ static inline void set_bit_area(unsigned long *map, unsigned long i,
 	}
 }
 
-static inline int is_span_boundary(unsigned int index, unsigned int nr,
-				   unsigned long shift,
-				   unsigned long boundary_size)
+int iommu_is_span_boundary(unsigned int index, unsigned int nr,
+			   unsigned long shift,
+			   unsigned long boundary_size)
 {
+	BUG_ON(!is_power_of_2(boundary_size));
+
 	shift = (shift + index) & (boundary_size - 1);
 	return shift + nr > boundary_size;
 }
@@ -57,7 +59,7 @@ unsigned long iommu_area_alloc(unsigned long *map, unsigned long size,
 again:
 	index = find_next_zero_area(map, size, start, nr, align_mask);
 	if (index != -1) {
-		if (is_span_boundary(index, nr, shift, boundary_size)) {
+		if (iommu_is_span_boundary(index, nr, shift, boundary_size)) {
 			/* we could do more effectively */
 			start = index + 1;
 			goto again;
-- 
1.5.3.7


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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
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Subject: [PATCH -mm 2/3] parisc: pass struct device to iommu_alloc_range
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This adds struct device argument to sba_alloc_range and
ccio_alloc_range, a preparation for modifications to fix the IOMMU
segment boundary problem. This change enables ccio_alloc_range to
access to LLD's segment boundary limits.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 drivers/parisc/ccio-dma.c      |    4 ++--
 drivers/parisc/iommu-helpers.h |    4 ++--
 drivers/parisc/sba_iommu.c     |    4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index d08b284..1695fac 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -341,7 +341,7 @@ static int ioc_count;
  * of available pages for the requested size.
  */
 static int
-ccio_alloc_range(struct ioc *ioc, size_t size)
+ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
 {
 	unsigned int pages_needed = size >> IOVP_SHIFT;
 	unsigned int res_idx;
@@ -760,7 +760,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
 	ioc->msingle_pages += size >> IOVP_SHIFT;
 #endif
 
-	idx = ccio_alloc_range(ioc, size);
+	idx = ccio_alloc_range(ioc, dev, size);
 	iovp = (dma_addr_t)MKIOVP(idx);
 
 	pdir_start = &(ioc->pdir_base[idx]);
diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h
index 97ba828..3cc6930 100644
--- a/drivers/parisc/iommu-helpers.h
+++ b/drivers/parisc/iommu-helpers.h
@@ -97,7 +97,7 @@ iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents,
 static inline unsigned int
 iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
 		      struct scatterlist *startsg, int nents,
-		      int (*iommu_alloc_range)(struct ioc *, size_t))
+		      int (*iommu_alloc_range)(struct ioc *, struct device *, size_t))
 {
 	struct scatterlist *contig_sg;	   /* contig chunk head */
 	unsigned long dma_offset, dma_len; /* start/len of DMA stream */
@@ -166,7 +166,7 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
 		dma_len = ALIGN(dma_len + dma_offset, IOVP_SIZE);
 		sg_dma_address(contig_sg) =
 			PIDE_FLAG 
-			| (iommu_alloc_range(ioc, dma_len) << IOVP_SHIFT)
+			| (iommu_alloc_range(ioc, dev, dma_len) << IOVP_SHIFT)
 			| dma_offset;
 		n_mappings++;
 	}
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index d06627c..7d58bd2 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -404,7 +404,7 @@ sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted)
  * resource bit map.
  */
 static int
-sba_alloc_range(struct ioc *ioc, size_t size)
+sba_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
 {
 	unsigned int pages_needed = size >> IOVP_SHIFT;
 #ifdef SBA_COLLECT_STATS
@@ -710,7 +710,7 @@ sba_map_single(struct device *dev, void *addr, size_t size,
 	ioc->msingle_calls++;
 	ioc->msingle_pages += size >> IOVP_SHIFT;
 #endif
-	pide = sba_alloc_range(ioc, size);
+	pide = sba_alloc_range(ioc, dev, size);
 	iovp = (dma_addr_t) pide << IOVP_SHIFT;
 
 	DBG_RUN("%s() 0x%p -> 0x%lx\n",
-- 
1.5.3.7

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
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This patchset is another sequel to my patchset to fix iommu segment
boundary problems, IOMMUs allocate memory areas without considering a
low level driver's segment boundary limits:

http://www.mail-archive.com/linux-scsi@vger.kernel.org/msg11919.html

This patchset fixes the PARISC IOMMU code (sbc and ccio).

There are three patches in this patchset. The first patch is for the
IOMMU helper (lib/iommu-helper.c) to enable PARISC IOMMUs use it.

The second and third patches are for PARISC IOMMUs, the second one is
preparation for the third patch, which fixes the IOMMU segment
boundary problem.

The third patch assumes that ioc->ibase is on IOVP_SIZE boundary. If
not, please let me know. I'll fix the patch.


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This patch makes PARISC's two IOMMU implementations not allocate a
memory area spanning LLD's segment boundary.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 drivers/parisc/Kconfig     |    5 ++++
 drivers/parisc/ccio-dma.c  |   13 ++++++++++-
 drivers/parisc/sba_iommu.c |   48 +++++++++++++++++++++++++++++++++----------
 3 files changed, 53 insertions(+), 13 deletions(-)

diff --git a/drivers/parisc/Kconfig b/drivers/parisc/Kconfig
index 1d3b84b..553a990 100644
--- a/drivers/parisc/Kconfig
+++ b/drivers/parisc/Kconfig
@@ -103,6 +103,11 @@ config IOMMU_SBA
 	depends on PCI_LBA
 	default PCI_LBA
 
+config IOMMU_HELPER
+	bool
+	depends on IOMMU_SBA || IOMMU_CCIO
+	default y
+
 #config PCI_EPIC
 #	bool "EPIC/SAGA PCI support"
 #	depends on PCI
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 1695fac..2f3b364 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -43,6 +43,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/scatterlist.h>
+#include <linux/iommu-helper.h>
 
 #include <asm/byteorder.h>
 #include <asm/cache.h>		/* for L1_CACHE_BYTES */
@@ -302,9 +303,13 @@ static int ioc_count;
 */
 #define CCIO_SEARCH_LOOP(ioc, res_idx, mask, size)  \
        for(; res_ptr < res_end; ++res_ptr) { \
-               if(0 == (*res_ptr & mask)) { \
+               int ret;\
+               unsigned int idx;\
+               idx = (unsigned int)((unsigned long)res_ptr - (unsigned long)ioc->res_map); \
+		ret = iommu_is_span_boundary(idx << 3, pages_needed, 0, boundary_size);\
+               if((0 == (*res_ptr & mask)) && !ret) { \
                        *res_ptr |= mask; \
-                       res_idx = (unsigned int)((unsigned long)res_ptr - (unsigned long)ioc->res_map); \
+                       res_idx = idx;\
                        ioc->res_hint = res_idx + (size >> 3); \
                        goto resource_found; \
                } \
@@ -345,6 +350,7 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
 {
 	unsigned int pages_needed = size >> IOVP_SHIFT;
 	unsigned int res_idx;
+	unsigned long boundary_size;
 #ifdef CCIO_SEARCH_TIME
 	unsigned long cr_start = mfctl(16);
 #endif
@@ -360,6 +366,9 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
 	** ggg sacrifices another 710 to the computer gods.
 	*/
 
+	boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
+	boundary_size >>= IOVP_SHIFT;
+
 	if (pages_needed <= 8) {
 		/*
 		 * LAN traffic will not thrash the TLB IFF the same NIC
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 7d58bd2..e834127 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -29,6 +29,7 @@
 #include <linux/string.h>
 #include <linux/pci.h>
 #include <linux/scatterlist.h>
+#include <linux/iommu-helper.h>
 
 #include <asm/byteorder.h>
 #include <asm/io.h>
@@ -313,6 +314,12 @@ sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents)
 #define RESMAP_MASK(n)    (~0UL << (BITS_PER_LONG - (n)))
 #define RESMAP_IDX_MASK   (sizeof(unsigned long) - 1)
 
+unsigned long ptr_to_pide(struct ioc *ioc, unsigned long *res_ptr,
+			  unsigned int bitshiftcnt)
+{
+	return (((unsigned long)res_ptr - (unsigned long)ioc->res_map) << 3)
+		+ bitshiftcnt;
+}
 
 /**
  * sba_search_bitmap - find free space in IO PDIR resource bitmap
@@ -324,19 +331,36 @@ sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents)
  * Cool perf optimization: search for log2(size) bits at a time.
  */
 static SBA_INLINE unsigned long
-sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted)
+sba_search_bitmap(struct ioc *ioc, struct device *dev,
+		  unsigned long bits_wanted)
 {
 	unsigned long *res_ptr = ioc->res_hint;
 	unsigned long *res_end = (unsigned long *) &(ioc->res_map[ioc->res_size]);
-	unsigned long pide = ~0UL;
+	unsigned long pide = ~0UL, tpide;
+	unsigned long boundary_size;
+	unsigned long shift;
+	int ret;
+
+	boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
+	boundary_size >>= IOVP_SHIFT;
+
+#if defined(ZX1_SUPPORT)
+	BUG_ON(ioc->ibase & ~IOVP_MASK);
+	shift = ioc->ibase >> IOVP_SHIFT;
+#else
+	shift = 0;
+#endif
 
 	if (bits_wanted > (BITS_PER_LONG/2)) {
 		/* Search word at a time - no mask needed */
 		for(; res_ptr < res_end; ++res_ptr) {
-			if (*res_ptr == 0) {
+			tpide = ptr_to_pide(ioc, res_ptr, 0);
+			ret = iommu_is_span_boundary(tpide, bits_wanted,
+						     shift,
+						     boundary_size);
+			if ((*res_ptr == 0) && !ret) {
 				*res_ptr = RESMAP_MASK(bits_wanted);
-				pide = ((unsigned long)res_ptr - (unsigned long)ioc->res_map);
-				pide <<= 3;	/* convert to bit address */
+				pide = tpide;
 				break;
 			}
 		}
@@ -365,11 +389,13 @@ sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted)
 		{ 
 			DBG_RES("    %p %lx %lx\n", res_ptr, mask, *res_ptr);
 			WARN_ON(mask == 0);
-			if(((*res_ptr) & mask) == 0) {
+			tpide = ptr_to_pide(ioc, res_ptr, bitshiftcnt);
+			ret = iommu_is_span_boundary(tpide, bits_wanted,
+						     shift,
+						     boundary_size);
+			if ((((*res_ptr) & mask) == 0) && !ret) {
 				*res_ptr |= mask;     /* mark resources busy! */
-				pide = ((unsigned long)res_ptr - (unsigned long)ioc->res_map);
-				pide <<= 3;	/* convert to bit address */
-				pide += bitshiftcnt;
+				pide = tpide;
 				break;
 			}
 			mask >>= o;
@@ -412,9 +438,9 @@ sba_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
 #endif
 	unsigned long pide;
 
-	pide = sba_search_bitmap(ioc, pages_needed);
+	pide = sba_search_bitmap(ioc, dev, pages_needed);
 	if (pide >= (ioc->res_size << 3)) {
-		pide = sba_search_bitmap(ioc, pages_needed);
+		pide = sba_search_bitmap(ioc, dev, pages_needed);
 		if (pide >= (ioc->res_size << 3))
 			panic("%s: I/O MMU @ %p is out of mapping resources\n",
 			      __FILE__, ioc->ioc_hpa);
-- 
1.5.3.7

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From - Thu Nov 08 21:02:01 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH -mm 0/3] fix iommu segment boundary problems (parisc)
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Cc: linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	tomof@acm.org, Kyle McMartin <kyle@parisc-linux.org>,
	Matthew Wilcox <matthew@wil.cx>,
	Grant Grundler <grundler@parisc-linux.org>,
	Andrew Morton <akpm@linux-foundation.org>
To: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
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On Sun, Mar 02, 2008 at 03:10:25PM +0900, FUJITA Tomonori wrote:
> This patchset is another sequel to my patchset to fix iommu segment
> boundary problems, IOMMUs allocate memory areas without considering a
> low level driver's segment boundary limits:
> 
> http://www.mail-archive.com/linux-scsi@vger.kernel.org/msg11919.html
> 

This looks fine. Are you able to test this? If not, we can set you up
with an account on a machine with remote console and all that jazz, if
you'd like to.

cheers, Kyle
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From: Stuart Brady <sdbrady@ntlworld.com>
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Subject: Segfault when using SDL with POSIX timers
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Hi,

The test program below segfaults on parisc, but not on x86-64.  It's
based on code from QEMU, which was crashing on exit.  Can anyone see
what the cause is?  Here's the backtrace:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x4000 (LWP 8682)]
0x00000000 in ?? ()
(gdb) bt
#0  0x00000000 in ?? ()
#1  0x403c7aac in ?? () from /lib/ld.so.1
#2  0x403c7c08 in ?? () from /lib/ld.so.1
#3  0x400490dc in ?? () from /lib/libdl.so.2
#4  0x403c1834 in ?? () from /lib/ld.so.1
#5  0x40049590 in ?? () from /lib/libdl.so.2
#6  0x40049118 in dlclose () from /lib/libdl.so.2
#7  0x403297f4 in ?? () from /usr/lib/libSDL-1.2.so.0
#8  0x4031fff8 in SDL_VideoQuit () from /usr/lib/libSDL-1.2.so.0
#9  0x402f2c78 in SDL_QuitSubSystem () from /usr/lib/libSDL-1.2.so.0
#10 0x402f2d20 in SDL_Quit () from /usr/lib/libSDL-1.2.so.0
#11 0x000109d8 in main ()

The output is simply:

Starting timer
Starting SDL
Quitting SDL
Segmentation fault (core dumped)

I'm running Debian Etch, with libc6 2.7-6, linux-image-2.6.22-3-parisc64
libsdl1.2debian-alsa 1.2.13-2.  I've tried gcc-3.4.6-6 and gcc-4.2.3-1.
I built it with "gcc -Wall -I/usr/include/SDL -lSDL -lrt
sdl-timer-test.c -o sdl-timer-test".

Here's the code:

#include <stdio.h>
#include <signal.h>
#include <time.h>
#include <SDL.h>

void display_init(void)
{
    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE)) {
        fprintf(stderr, "SDL init failed\n");
        exit(1);
    }
    /* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
    signal(SIGINT, SIG_DFL);
    signal(SIGQUIT, SIG_DFL);
}

static void host_alarm_handler(int host_signum)
{
    fprintf(stderr, "alarm\n");
}

static void start_timer(void)
{
    struct sigevent ev;
    timer_t host_timer;
    struct sigaction act;

    sigfillset(&act.sa_mask);
    act.sa_flags = 0;
    act.sa_handler = host_alarm_handler;

    sigaction(SIGALRM, &act, NULL);

    ev.sigev_value.sival_int = 0;
    ev.sigev_notify = SIGEV_SIGNAL;
    ev.sigev_signo = SIGALRM;

    if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
        perror("timer_create");
        fprintf(stderr, "timer init failed\n");
        exit(1);
    }
}

int main(int argc, char **argv)
{
    fprintf(stderr, "Starting timer\n");
    start_timer();
    fprintf(stderr, "Starting SDL\n");
    display_init();
    fprintf(stderr, "Quitting SDL\n");
    SDL_Quit();
    fprintf(stderr, "Exitting\n");
    exit(0);
}

If I remove SDL_INIT_NOPARACHUTE, I get the following:

Starting timer
Starting SDL
Quitting SDL
*** glibc detected *** ./sdl-timer-test: double free or corruption (top): 0x00031d18 ***
Aborted (core dumped)

On x86-64, with or without SDL_INIT_NOPARACHUTE, it exits successfully:

Starting timer
Starting SDL
Quitting SDL
Exiting
-- 
Stuart Brady
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On Mon, Mar 03, 2008 at 04:47:27AM +0000, Stuart Brady wrote:
> I'm running Debian Etch

Sorry, when I said Etch, I meant Lenny. :)
-- 
Stuart Brady
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From: Randolph Chung <randolph@tausq.org>
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Subject: [patch] Remove HPUX and SOM support
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Remove unsupported and bitrotten HPUX and SOM support from the kernel.

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

randolph

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From - Thu Nov 08 21:02:02 2018
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From: "rubisher" <rubisher@scarlet.be>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH -mm 0/3] fix iommu segment boundary problems (parisc)
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To: "kyle" <kyle@mcmartin.ca>
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> On Sun, Mar 02, 2008 at 03:10:25PM +0900, FUJITA Tomonori wrote:
> > This patchset is another sequel to my patchset to fix iommu segment
> > boundary problems, IOMMUs allocate memory areas without considering a
> > low level driver's segment boundary limits:
> > 
> > http://www.mail-archive.com/linux-scsi@vger.kernel.org/msg11919.html
> > 
> 
> This looks fine. Are you able to test this? If not, we can set you up
> with an account on a machine with remote console and all that jazz, if
> you'd like to.
> 
> cheers, Kyle
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
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> 
Dear *,

I have access to 3 kind of boxes which needed one of those drivers: a b2k and
mainly a c110 and a d380 for which I hope a lot of this patch ;-)

I will so try the patch asap and let you know the results.

hth,
    r.

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From - Thu Nov 08 21:02:02 2018
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From: "rubisher" <rubisher@scarlet.be>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH -mm 0/3] fix iommu segment boundary problems (parisc)
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	"rubisher" <rubisher@scarlet.be>
To: "kyle" <kyle@mcmartin.ca>
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> On Sun, Mar 02, 2008 at 03:10:25PM +0900, FUJITA Tomonori wrote:
> > This patchset is another sequel to my patchset to fix iommu segment
> > boundary problems, IOMMUs allocate memory areas without considering a
> > low level driver's segment boundary limits:
> > 
> > http://www.mail-archive.com/linux-scsi@vger.kernel.org/msg11919.html
> > 
> 
> This looks fine. Are you able to test this? If not, we can set you up
> with an account on a machine with remote console and all that jazz, if
> you'd like to.
> 
> cheers, Kyle
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
Sorry for bad news but using a kernel known to work fine on my b2k (kyle's
parisc-2.6.git date 2008_02_21) against which I applied those patches, this
new kernel 32bit up failled to boot with this panic message:

Linux Tulip driver version 1.1.15 (Feb 27, 2007)
------------[ cut here ]------------
Kernel BUG at 1029520c [verbose debug info unavailable]

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110 Not tainted
r00-03  0004ff0e 1054c010 1029e774 80000000
r04-07  1fc2b020 00000100 00000000 00000001
r08-11  1fc1d454 1fc2c000 00000000 80000000
r12-15  00000001 00000001 1fc10858 0001a000
r16-19  00000011 104a23d0 00000000 ffffffff
r20-23  00001000 00000000 1fdb6a00 00000000
r24-27  00000000 00000001 00000100 10507010
r28-31  00000100 00100000 1fc205c0 00000000
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000
IASQ: 00000000 00000000 IAOQ: 1029520c 10295210
 IIR: 03ffe01f    ISR: 1024003f  IOR: 0802056c
 CPU:        0   CR30: 1fc20000 CR31: 11111111
 ORIG_R28: 0000000f
 IAOQ[0]: iommu_is_span_boundary+0x28/0x30
 IAOQ[1]: iommu_is_span_boundary+0x2c/0x30
 RP(r2): sba_alloc_range+0x23c/0x4f8
Backtrace:
 [<10107938>] show_regs+0x2c8/0x450
 [<10107c64>] die_if_kernel+0x98/0x1b0
 [<101083a0>] handle_interruption+0x624/0x6b4
 [<1010b078>] intr_check_sig+0x0/0x34
 [<1015d07c>] rmqueue_bulk+0x44/0x9c
 [<1015e778>] __alloc_pages+0xc4/0x388
 [<1015ea74>] __get_free_pages+0x38/0x74
 [<1029ed64>] sba_alloc_consistent+0x60/0xd4
 [<105852f0>] tulip_init_one+0x2ac/0xd10
 [<1029acb0>] pci_device_probe+0x70/0xa8
 [<102dad50>] driver_probe_device+0xa4/0x1bc
 [<102db01c>] __driver_attach+0x60/0xf4
 [<102da1dc>] bus_for_each_dev+0x58/0xa0
 [<102da978>] bus_add_driver+0xd4/0x1e0
 [<102db34c>] driver_register+0x48/0x108
 [<10565880>] kernel_init+0x120/0x33c

Backtrace:
 [<10107c6c>] die_if_kernel+0xa0/0x1b0
 [<101083a0>] handle_interruption+0x624/0x6b4
 [<1010b078>] intr_check_sig+0x0/0x34
 [<1015d07c>] rmqueue_bulk+0x44/0x9c
 [<1015e778>] __alloc_pages+0xc4/0x388
 [<1015ea74>] __get_free_pages+0x38/0x74
 [<1029ed64>] sba_alloc_consistent+0x60/0xd4
 [<105852f0>] tulip_init_one+0x2ac/0xd10
 [<1029acb0>] pci_device_probe+0x70/0xa8
 [<102dad50>] driver_probe_device+0xa4/0x1bc
 [<102db01c>] __driver_attach+0x60/0xf4
 [<102da1dc>] bus_for_each_dev+0x58/0xa0
 [<102da978>] bus_add_driver+0xd4/0x1e0
 [<102db34c>] driver_register+0x48/0x108
 [<10565880>] kernel_init+0x120/0x33c
 [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24

Kernel panic - not syncing: Attempted to kill init!

(I haven't a lot a spare time right now, but I will do my best to help as much
as I can).

r.
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From - Thu Nov 08 21:02:02 2018
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From: FUJITA Tomonori <tomof@acm.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH -mm 0/3] fix iommu segment boundary problems (parisc)
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On Mon,  3 Mar 2008 12:04:00 +0100
"rubisher" <rubisher@scarlet.be> wrote:

> > On Sun, Mar 02, 2008 at 03:10:25PM +0900, FUJITA Tomonori wrote:
> > > This patchset is another sequel to my patchset to fix iommu segment
> > > boundary problems, IOMMUs allocate memory areas without considering a
> > > low level driver's segment boundary limits:
> > > 
> > > http://www.mail-archive.com/linux-scsi@vger.kernel.org/msg11919.html
> > > 
> > 
> > This looks fine. Are you able to test this? If not, we can set you up
> > with an account on a machine with remote console and all that jazz, if
> > you'd like to.
> > 
> > cheers, Kyle
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> > 
> Sorry for bad news but using a kernel known to work fine on my b2k (kyle's
> parisc-2.6.git date 2008_02_21) against which I applied those patches, this
> new kernel 32bit up failled to boot with this panic message:
> 
> Linux Tulip driver version 1.1.15 (Feb 27, 2007)
> ------------[ cut here ]------------
> Kernel BUG at 1029520c [verbose debug info unavailable]
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001110 Not tainted
> r00-03  0004ff0e 1054c010 1029e774 80000000
> r04-07  1fc2b020 00000100 00000000 00000001
> r08-11  1fc1d454 1fc2c000 00000000 80000000
> r12-15  00000001 00000001 1fc10858 0001a000
> r16-19  00000011 104a23d0 00000000 ffffffff
> r20-23  00001000 00000000 1fdb6a00 00000000
> r24-27  00000000 00000001 00000100 10507010
> r28-31  00000100 00100000 1fc205c0 00000000
> sr00-03  00000000 00000000 00000000 00000000
> sr04-07  00000000 00000000 00000000 00000000
> IASQ: 00000000 00000000 IAOQ: 1029520c 10295210
>  IIR: 03ffe01f    ISR: 1024003f  IOR: 0802056c
>  CPU:        0   CR30: 1fc20000 CR31: 11111111
>  ORIG_R28: 0000000f
>  IAOQ[0]: iommu_is_span_boundary+0x28/0x30
>  IAOQ[1]: iommu_is_span_boundary+0x2c/0x30
>  RP(r2): sba_alloc_range+0x23c/0x4f8

Thanks a lot for testing!

Really sorry about the bug. Can you try the following patch? It's on
the top of the patchset.

Thanks,

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 2f3b364..d0855a1 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -366,8 +366,8 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
 	** ggg sacrifices another 710 to the computer gods.
 	*/
 
-	boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
-	boundary_size >>= IOVP_SHIFT;
+	boundary_size = ALIGN((unsigned long long)dma_get_seg_boundary(dev) + 1,
+			      1ULL << IOVP_SHIFT) >> IOVP_SHIFT;
 
 	if (pages_needed <= 8) {
 		/*
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index e834127..bdbe780 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -341,8 +341,8 @@ sba_search_bitmap(struct ioc *ioc, struct device *dev,
 	unsigned long shift;
 	int ret;
 
-	boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
-	boundary_size >>= IOVP_SHIFT;
+	boundary_size = ALIGN((unsigned long long)dma_get_seg_boundary(dev) + 1,
+			      1ULL << IOVP_SHIFT) >> IOVP_SHIFT;
 
 #if defined(ZX1_SUPPORT)
 	BUG_ON(ioc->ibase & ~IOVP_MASK);
--
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From - Thu Nov 08 21:02:02 2018
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From: "rubisher" <rubisher@scarlet.be>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH -mm 0/3] fix iommu segment boundary problems (parisc)
Date: Mon,  3 Mar 2008 15:43:38 +0100
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Cc: "kyle" <kyle@mcmartin.ca>,
	"fujita\.tomonori" <fujita.tomonori@lab.ntt.co.jp>,
	"linux-kernel" <linux-kernel@vger.kernel.org>,
	"linux-parisc" <linux-parisc@vger.kernel.org>,
	"tomof" <tomof@acm.org>, "kyle" <kyle@parisc-linux.org>,
	"matthew" <matthew@wil.cx>, "grundler" <grundler@parisc-linux.org>,
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To: "tomof" <tomof@acm.org>
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> On Mon,  3 Mar 2008 12:04:00 +0100
> "rubisher" <rubisher@scarlet.be> wrote:
> 
> > > On Sun, Mar 02, 2008 at 03:10:25PM +0900, FUJITA Tomonori wrote:
> > > > This patchset is another sequel to my patchset to fix iommu segment
> > > > boundary problems, IOMMUs allocate memory areas without considering a
> > > > low level driver's segment boundary limits:
> > > > 
> > > > http://www.mail-archive.com/linux-scsi@vger.kernel.org/msg11919.html
> > > > 
> > > 
> > > This looks fine. Are you able to test this? If not, we can set you up
> > > with an account on a machine with remote console and all that jazz, if
> > > you'd like to.
> > > 
> > > cheers, Kyle
> > > --
[snip]
> Thanks a lot for testing!
> 
Always welcome ;-)

> Really sorry about the bug.

Don't worry, those boxes are there for my fun...

> Can you try the following patch? It's on the top of the patchset.
> 
Good catch: now this first testing system (I mean the b2k) is up and running ;-)

I will now try the ccio_dma driver on a d380 ...

hth,
    r.

> Thanks,
> 
> diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
> index 2f3b364..d0855a1 100644
> --- a/drivers/parisc/ccio-dma.c
> +++ b/drivers/parisc/ccio-dma.c
> @@ -366,8 +366,8 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev,
size_t size)
>  	** ggg sacrifices another 710 to the computer gods.
>  	*/
>  
> -	boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
> -	boundary_size >>= IOVP_SHIFT;
> +	boundary_size = ALIGN((unsigned long long)dma_get_seg_boundary(dev) + 1,
> +			      1ULL << IOVP_SHIFT) >> IOVP_SHIFT;
>  
>  	if (pages_needed <= 8) {
>  		/*
> diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
> index e834127..bdbe780 100644
> --- a/drivers/parisc/sba_iommu.c
> +++ b/drivers/parisc/sba_iommu.c
> @@ -341,8 +341,8 @@ sba_search_bitmap(struct ioc *ioc, struct device *dev,
>  	unsigned long shift;
>  	int ret;
>  
> -	boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
> -	boundary_size >>= IOVP_SHIFT;
> +	boundary_size = ALIGN((unsigned long long)dma_get_seg_boundary(dev) + 1,
> +			      1ULL << IOVP_SHIFT) >> IOVP_SHIFT;
>  
>  #if defined(ZX1_SUPPORT)
>  	BUG_ON(ioc->ibase & ~IOVP_MASK);
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 
---
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From: Jesse Barnes <jbarnes@virtuousgeek.org>
Newsgroups: gmane.linux.ports.ppc64.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel
Subject: Re: [patch 4/6] ARM: move bridge enable out of
	pcibios_enable_resources()
Date: Mon, 3 Mar 2008 09:59:35 -0800
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Cc: linux-arch@vger.kernel.org, Chris Zankel <chris@zankel.net>,
	Grant Grundler <grundler@parisc-linux.org>,
	linux-parisc@vger.kernel.org, Matthew Wilcox <matthew@wil.cx>,
	Kyle McMartin <kyle@parisc-linux.org>, linuxppc-dev@ozlabs.org,
	Paul Mackerras <paulus@samba.org>, linux-arm-kernel@lists.arm.linux.org.uk,
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To: linux-pci@atrey.karlin.mff.cuni.cz
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Xref: news.gmane.org gmane.linux.ports.ppc64.devel:36567 gmane.linux.kernel.cross-arch:18 gmane.linux.ports.parisc:158 gmane.linux.ports.arm.kernel:39167
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On Wednesday, February 27, 2008 4:04 pm Bjorn Helgaas wrote:
> Move bridge enable from pcibios_enable_resources() to
> platform_pci_enable_device() so the former matches other
> architectures and can be shared.

I really like the direction of these patches.  Getting PCI resources assigned 
& devices setup correctly for new arches has always been a bit more trouble 
than it should be...

>
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
>
> Index: work6/arch/arm/kernel/bios32.c
> ===================================================================
> --- work6.orig/arch/arm/kernel/bios32.c	2008-02-27 11:25:29.000000000 -0700
> +++ work6/arch/arm/kernel/bios32.c	2008-02-27 11:55:59.000000000 -0700
> @@ -683,15 +683,32 @@
>  			cmd |= PCI_COMMAND_MEMORY;
>  	}
>
> +	if (cmd != old_cmd) {
> +		printk("PCI: enabling device %s (%04x -> %04x)\n",
> +		       pci_name(dev), old_cmd, cmd);

Probably worth giving this printk a prefix at some point (doesn't matter for 
this patchset though since you're just moving it around).

Rest of it looks good.

Jesse

From - Thu Nov 08 21:02:02 2018
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From: Stuart Brady <sdbrady@ntlworld.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Segfault when using SDL with POSIX timers
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Here's a better backtrace, produced with libc6-dbg installed:

#0  0x00000000 in ?? ()
#1  0x402b7aac in _dl_close_worker () from /lib/ld.so.1
#2  0x402b7c08 in _dl_close () from /lib/ld.so.1
#3  0x400690dc in dlclose_doit () from /lib/libdl.so.2
#4  0x402b1834 in _dl_catch_error () from /lib/ld.so.1
#5  0x40069590 in _dlerror_run () from /lib/libdl.so.2
#6  0x40069118 in dlclose () from /lib/libdl.so.2
#7  0x407737f4 in ?? () from /usr/lib/libSDL-1.2.so.0
#8  0x40769ff8 in SDL_VideoQuit () from /usr/lib/libSDL-1.2.so.0
#9  0x4073cc78 in SDL_QuitSubSystem () from /usr/lib/libSDL-1.2.so.0
#10 0x4073cd20 in SDL_Quit () from /usr/lib/libSDL-1.2.so.0
#11 0x000109d4 in main ()

The double-free when using SDL's parachute seems to be a red-herring --
SDL_Quit is called a second time, in response to the segfault, and that
causes the double-free.

BTW, tausq has pointed out that there's no crash if SDL_INIT_VIDEO is
dropped from the call to SDL_Init().  I've also found that it does not
segfault when using the fbdev with SDL_VIDEODRIVER set to directfb or
fbcon -- but it does segfault when using the x11 driver, which I what
I had originally tried.

Any idea what could be going wrong in dlclose()?
-- 
Stuart Brady
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [patch 5/6] PARISC: move PERR & SERR enables out of pcibios_enable_resources()
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On Thursday, February 28, 2008 9:31 am Grant Grundler wrote:
> In general, I'm wondering if the check for device class would be
> sufficient here to NOT enable PERR/SERR for graphics automatically.
> While disabling PERR was "the right thing" for older "mostly write"
> devices of the 1990's and early 2000, it might not be correct for
> current 3-D graphics devices which use host mem to buffer processed
> results. I'm thinking of Intel graphics controllers in particular
> but I don't know any details of how they actually work.

Well, in general chipset devices aren't required to support parity checking, 
AIUI; Intel gfx devices don't bother (PERR enable is hardwired to 0).

> I'm also a bit concerned about this now becuase (IIRC) AGP didn't
> implement parity though it looked like PCI protocol. PCI-e certainly
> does but it's possible BIOS/Firmware disable parity generation
> on the host bridge when connected to a gfx device.
> We wouldn't want to enable parity checking on a PCI-e gfx device in this
> case and I hope someone (perhaps at Intel) could double check this.

I'd have to ping our BIOS folks to see if that's the case, but I doubt it.  It 
would be a bad idea to disable any PCIe error reporting (including legacy 
error mapping) just because a gfx device was attached.  Apparently the AMD 
PCIe parts include PERR generation, so disabling upstream reporting at boot 
time seems like it would be an outright bug; it should be left up to driver & 
OS software.

Jesse


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Subject: Re: [patch 6/6] PCI: consolidate several pcibios_enable_resources() implementations
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On Wednesday, February 27, 2008 4:04 pm Bjorn Helgaas wrote:
> There are many implementations of pcibios_enable_resources() that differ
> in minor ways that look more like bugs than architectural differences.
>
> This patch consolidates most of them to use the version annotated below.
> This is the original x86 version, except that it uses the resource
> collision check from powerpc at (5):

Looks really good to me, definitely a step in the right direction.

> The mips/pmc-sierra implementation of pcibios_enable_resources() is
> cluttered with a bunch of titan stuff, so I can't immediately consolidate
> it with the others.  So I made the generic version "weak" so pmc-sierra
> can override it.
>
> Not-Yet-Signed-off-by: Bjorn Helgaas <bjorn.helgaas-VXdhtT5mjnY@public.gmane.org>

So you'd like to see the MIPS stuff cleaned up a bit more first before actual 
sign-off?  Or just more testing?

>  18 files changed, 43 insertions(+), 507 deletions(-)

Nice diffstat. :)

Jesse
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On Monday 03 March 2008 11:45:06 am Jesse Barnes wrote:
> On Wednesday, February 27, 2008 4:04 pm Bjorn Helgaas wrote:
> >
> > Not-Yet-Signed-off-by: Bjorn Helgaas <bjorn.helgaas-VXdhtT5mjnY@public.gmane.org>
> 
> So you'd like to see the MIPS stuff cleaned up a bit more first before actual 
> sign-off?  Or just more testing?

I think it'd be *nice* if that MIPS stuff got cleaned up, but that's
way beyond my scope.  I just want to address Kyle's comments and make
sure I don't screw up ARM and PARISC.

Bjorn
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On Wed, Feb 27, 2008 at 05:04:37PM -0700, Bjorn Helgaas wrote:
> There are many implementations of pcibios_enable_resources() that differ
> in minor ways that look more like bugs than architectural differences.
> This patch series consolidates most of them to use the x86 version.
> 
> Changes between v1 and v2:
> 
>   - Moved ARM bridge enable to new platform_pci_enable_device(),
>     called by pcibios_enable_device()

Looks fine.  However, long term I've no idea what to do about this because
I don't remember the reasoning behind it.  So to change it risks breakage
of one sort or another.

It might have been something to do with the Mobility Cardbus docking
station, which adds a pair of P2P bridges onto the PCI chain downstream
of the Cardbus controller, and then a full PCI bus containing USB, VGA,
and other peripherals.

This _once_ used to work with Linux but I suspect as a result of "fixing"
other issues its now utterly broken.

In any case, that docking station isn't ARM specific in any way; merely
a toy Alan Cox sent me.  When I gave up my PCMCIA maintainership, I gave
up trying to keep it supported by Linux.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
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From - Thu Nov 08 21:02:02 2018
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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Newsgroups: gmane.linux.ports.ppc64.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel
Subject: Re: [patch 4/6] ARM: move bridge enable out of
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To: Jesse Barnes <jbarnes@virtuousgeek.org>
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On Mon, 2008-03-03 at 09:59 -0800, Jesse Barnes wrote:
> On Wednesday, February 27, 2008 4:04 pm Bjorn Helgaas wrote:
> > Move bridge enable from pcibios_enable_resources() to
> > platform_pci_enable_device() so the former matches other
> > architectures and can be shared.
> 
> I really like the direction of these patches.  Getting PCI resources assigned 
> & devices setup correctly for new arches has always been a bit more trouble 
> than it should be...

You'll noticed that I recently moved powerpc to something more common to
x86 in the are of resource allocation. Still -slightly- different but I
do believe there is room for somebody with some skills to try to turn
some of that into generic code.

Ben.

From - Thu Nov 08 21:02:03 2018
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From: Jesse Barnes <jbarnes@virtuousgeek.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [patch 4/6] ARM: move bridge enable out of pcibios_enable_resources()
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/165>

On Monday, March 03, 2008 12:35 pm Benjamin Herrenschmidt wrote:
> On Mon, 2008-03-03 at 09:59 -0800, Jesse Barnes wrote:
> > On Wednesday, February 27, 2008 4:04 pm Bjorn Helgaas wrote:
> > > Move bridge enable from pcibios_enable_resources() to
> > > platform_pci_enable_device() so the former matches other
> > > architectures and can be shared.
> >
> > I really like the direction of these patches.  Getting PCI resources
> > assigned & devices setup correctly for new arches has always been a bit
> > more trouble than it should be...
>
> You'll noticed that I recently moved powerpc to something more common to
> x86 in the are of resource allocation. Still -slightly- different but I
> do believe there is room for somebody with some skills to try to turn
> some of that into generic code.

Yeah, I think that would be a good thing to shoot for.  Even on PCs there are 
times when we need resource allocation to be done (or re-done) by the kernel 
for hotplug or just because the platform is pared down enough that it doesn't 
to it all by itself.

I might be able to find time to look into that myself in the next few weeks; I 
think we even have some open PCI bugs that could be solved by better resource 
allocation.

Jesse
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From - Thu Nov 08 21:02:03 2018
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From: "rubisher" <rubisher@scarlet.be>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH -mm 0/3] fix iommu segment boundary problems (parisc)
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[snip]
> > Can you try the following patch? It's on the top of the patchset.
> > 
> Good catch: now this first testing system (I mean the b2k) is up and running ;-)
> 
> I will now try the ccio_dma driver on a d380 ...
> 
Yes, it works too on a d380 boxe running a 32bit up kernel.

Btw (it was a long time ago), I also resurrect my 64 config for the b2k model
and it also works fine.

Many tx again,
    r.

> hth,
>     r.
> 
> > Thanks,
> > 
> > diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
> > index 2f3b364..d0855a1 100644
> > --- a/drivers/parisc/ccio-dma.c
> > +++ b/drivers/parisc/ccio-dma.c
> > @@ -366,8 +366,8 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev,
> size_t size)
> >  	** ggg sacrifices another 710 to the computer gods.
> >  	*/
> >  
> > -	boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
> > -	boundary_size >>= IOVP_SHIFT;
> > +	boundary_size = ALIGN((unsigned long long)dma_get_seg_boundary(dev) + 1,
> > +			      1ULL << IOVP_SHIFT) >> IOVP_SHIFT;
> >  
> >  	if (pages_needed <= 8) {
> >  		/*
> > diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
> > index e834127..bdbe780 100644
> > --- a/drivers/parisc/sba_iommu.c
> > +++ b/drivers/parisc/sba_iommu.c
> > @@ -341,8 +341,8 @@ sba_search_bitmap(struct ioc *ioc, struct device *dev,
> >  	unsigned long shift;
> >  	int ret;
> >  
> > -	boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
> > -	boundary_size >>= IOVP_SHIFT;
> > +	boundary_size = ALIGN((unsigned long long)dma_get_seg_boundary(dev) + 1,
> > +			      1ULL << IOVP_SHIFT) >> IOVP_SHIFT;
> >  
> >  #if defined(ZX1_SUPPORT)
> >  	BUG_ON(ioc->ibase & ~IOVP_MASK);
> > --

---
Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95...
http://www.scarlet.be/

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From - Thu Nov 08 21:02:03 2018
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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH -mm 0/3] fix iommu segment boundary problems (parisc)
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On Tue,  4 Mar 2008 17:13:55 +0100
"rubisher" <rubisher@scarlet.be> wrote:

> [snip]
> > > Can you try the following patch? It's on the top of the patchset.
> > > 
> > Good catch: now this first testing system (I mean the b2k) is up and running ;-)
> > 
> > I will now try the ccio_dma driver on a d380 ...
> > 
> Yes, it works too on a d380 boxe running a 32bit up kernel.

Great, thanks a lot for testing both IOMMUs!


> Btw (it was a long time ago), I also resurrect my 64 config for the b2k model
> and it also works fine.

Nice, and sorry about the bug on 32bits boxes.

Thanks again,

From - Thu Nov 08 21:02:03 2018
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On Sun, 2 Mar 2008 12:13:11 -0500
Kyle McMartin <kyle@mcmartin.ca> wrote:

> On Sun, Mar 02, 2008 at 03:10:25PM +0900, FUJITA Tomonori wrote:
> > This patchset is another sequel to my patchset to fix iommu segment
> > boundary problems, IOMMUs allocate memory areas without considering a
> > low level driver's segment boundary limits:
> > 
> > http://www.mail-archive.com/linux-scsi@vger.kernel.org/msg11919.html
> > 
> 
> This looks fine. Are you able to test this? If not, we can set you up
> with an account on a machine with remote console and all that jazz, if
> you'd like to.

Thanks for the offer!

I don't have any parisc hardware. If -mm kernels are tested well with
parisc, I'd be happy to leave it in your guys' hands since I've never
used parisc and the patches seem to work (with the bug fix for 32bits
boxes).

I'd like to try if there are not people who try -mm kernels with
parisc or a bug that I can't fix easily will be found.

Thanks,
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Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:

> Each architecture has its own pcibios_enable_resources() implementation.
> These differ in many minor ways that have nothing to do with actual
> architectural differences.  Follow-on patches will make most arches
> use this generic version instead.
> 
> This version is based on powerpc, which seemed most up-to-date.  The only
> functional difference from the x86 version is that this uses "!r->parent"
> to check for resource collisions instead of "!r->start && r->end".
> 
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>

Acked-by: David Howells <dhowells@redhat.com>
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Subject: Re: [patch 05/16] frv: use generic pci_enable_resources()
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Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:

> Use the generic pci_enable_resources() instead of the arch-specific code.
> 
> Unlike this arch-specific code, the generic version:
>     - checks PCI_NUM_RESOURCES (11), not 6, resources
>     - skips resources that have neither IORESOURCE_IO nor IORESOURCE_MEM set
>     - skips ROM resources unless IORESOURCE_ROM_ENABLE is set
>     - checks for resource collisions with "!r->parent"
> 
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>

Acked-by: David Howells <dhowells@redhat.com>

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Subject: Re: [patch 08/16] mn10300: use generic pci_enable_resources()
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Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:

> Use the generic pci_enable_resources() instead of the arch-specific code.
> 
> Unlike this arch-specific code, the generic version:
>     - checks PCI_NUM_RESOURCES (11), not 6, resources
>     - skips resources that have neither IORESOURCE_IO nor IORESOURCE_MEM set
>     - skips ROM resources unless IORESOURCE_ROM_ENABLE is set
>     - checks for resource collisions with "!r->parent"
> 
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>

Acked-by: David Howells <dhowells@redhat.com>

From - Thu Nov 08 21:02:03 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH -mm 0/3] fix iommu segment boundary problems (parisc)
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Cc: linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	tomof@acm.org, Kyle McMartin <kyle@parisc-linux.org>,
	Matthew Wilcox <matthew@wil.cx>,
	Grant Grundler <grundler@parisc-linux.org>,
	Andrew Morton <akpm@linux-foundation.org>
To: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
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On Sun, Mar 02, 2008 at 03:10:25PM +0900, FUJITA Tomonori wrote:
> This patchset is another sequel to my patchset to fix iommu segment
> boundary problems, IOMMUs allocate memory areas without considering a
> low level driver's segment boundary limits:
> 
> http://www.mail-archive.com/linux-scsi@vger.kernel.org/msg11919.html
> 
> This patchset fixes the PARISC IOMMU code (sbc and ccio).
> 
> There are three patches in this patchset. The first patch is for the
> IOMMU helper (lib/iommu-helper.c) to enable PARISC IOMMUs use it.
> 
> The second and third patches are for PARISC IOMMUs, the second one is
> preparation for the third patch, which fixes the IOMMU segment
> boundary problem.
> 
> The third patch assumes that ioc->ibase is on IOVP_SIZE boundary. If
> not, please let me know. I'll fix the patch.

Please add
    Acked-by: Grant Grundler <grundler@parisc-linux.org>

This includes the 4th patch posted on march 3, 2008.

Thanks for posting this series. I've reviewed the code and it looks fine
to me as well (kyle already acked it).

And thanks to Joel Soete (rubisher) for testing. I tried to test the
sba_iommu code on my local box but had issues with the unpatched kernel
(using kyle's parisc-2.6.git tree) that I have yet to resolve (could be
HW problems).

thanks,
grant
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
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To: Bjorn Helgaas <bjorn.helgaas-VXdhtT5mjnY@public.gmane.org>
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On Tue, Mar 04, 2008 at 11:56:55AM -0700, Bjorn Helgaas wrote:
> Use the generic pci_enable_resources() instead of the arch-specific code.
> 
> Unlike this arch-specific code, the generic version:
>     - checks PCI_NUM_RESOURCES (11), not DEVICE_COUNT_RESOURCE (12), resources
>     - skips resources that have neither IORESOURCE_IO nor IORESOURCE_MEM set
>     - skips ROM resources unless IORESOURCE_ROM_ENABLE is set
>     - checks for resource collisions with "!r->parent"
> 
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas-VXdhtT5mjnY@public.gmane.org>
> 

Acked-by: Kyle McMartin <kyle-pfcGkIkfWfAsA/PxXw9srA@public.gmane.org>
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From - Thu Nov 08 21:02:03 2018
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: Re: [patch 09/16] parisc: use generic pci_enable_resources()
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On Wed, Mar 05, 2008 at 11:17:10AM -0500, Kyle McMartin wrote:
> On Tue, Mar 04, 2008 at 11:56:55AM -0700, Bjorn Helgaas wrote:
> > Use the generic pci_enable_resources() instead of the arch-specific code.
> > 
> > Unlike this arch-specific code, the generic version:
> >     - checks PCI_NUM_RESOURCES (11), not DEVICE_COUNT_RESOURCE (12), resources
> >     - skips resources that have neither IORESOURCE_IO nor IORESOURCE_MEM set
> >     - skips ROM resources unless IORESOURCE_ROM_ENABLE is set
> >     - checks for resource collisions with "!r->parent"
> > 
> > Signed-off-by: Bjorn Helgaas <bjorn.helgaas-VXdhtT5mjnY@public.gmane.org>
> > 
> 
> Acked-by: Kyle McMartin <kyle-pfcGkIkfWfAsA/PxXw9srA@public.gmane.org>

added, thanks.

greg k-h
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.cross-arch
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On Wed, Mar 05, 2008 at 02:52:46PM +0000, David Howells wrote:
> 
> Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:
> 
> > Use the generic pci_enable_resources() instead of the arch-specific code.
> > 
> > Unlike this arch-specific code, the generic version:
> >     - checks PCI_NUM_RESOURCES (11), not 6, resources
> >     - skips resources that have neither IORESOURCE_IO nor IORESOURCE_MEM set
> >     - skips ROM resources unless IORESOURCE_ROM_ENABLE is set
> >     - checks for resource collisions with "!r->parent"
> > 
> > Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
> 
> Acked-by: David Howells <dhowells@redhat.com>

Added, thanks.

greg k-h
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Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>,
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To: David Howells <dhowells@redhat.com>
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On Wed, Mar 05, 2008 at 02:53:31PM +0000, David Howells wrote:
> 
> Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:
> 
> > Each architecture has its own pcibios_enable_resources() implementation.
> > These differ in many minor ways that have nothing to do with actual
> > architectural differences.  Follow-on patches will make most arches
> > use this generic version instead.
> > 
> > This version is based on powerpc, which seemed most up-to-date.  The only
> > functional difference from the x86 version is that this uses "!r->parent"
> > to check for resource collisions instead of "!r->start && r->end".
> > 
> > Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
> 
> Acked-by: David Howells <dhowells@redhat.com>

added, thanks.

greg k-h
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On Wed, Mar 05, 2008 at 03:13:10PM +0000, David Howells wrote:
> 
> Bjorn Helgaas <bjorn.helgaas-VXdhtT5mjnY@public.gmane.org> wrote:
> 
> > Use the generic pci_enable_resources() instead of the arch-specific code.
> > 
> > Unlike this arch-specific code, the generic version:
> >     - checks PCI_NUM_RESOURCES (11), not 6, resources
> >     - skips resources that have neither IORESOURCE_IO nor IORESOURCE_MEM set
> >     - skips ROM resources unless IORESOURCE_ROM_ENABLE is set
> >     - checks for resource collisions with "!r->parent"
> > 
> > Signed-off-by: Bjorn Helgaas <bjorn.helgaas-VXdhtT5mjnY@public.gmane.org>
> 
> Acked-by: David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

added, thanks.

greg k-h
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From - Thu Nov 08 21:02:04 2018
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From: Stuart Brady <sdbrady@ntlworld.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Segfault when ogg123 exits
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Hi,

It seems ogg123 segfaults when it finishes playing.  Note that I'm not
pressing ^C -- I'm not even sure whether the "^C bug" is still around.
>From the backtrace, it looks like this may well be the same problem I
reported with SDL_Quit() and timer_create():

#0  0x00000000 in ?? ()
#1  0x400a7aac in _dl_close_worker () from /lib/ld.so.1
#2  0x400a7c08 in _dl_close () from /lib/ld.so.1
#3  0x400190dc in dlclose_doit () from /lib/libdl.so.2
#4  0x400a1834 in _dl_catch_error () from /lib/ld.so.1
#5  0x40019590 in _dlerror_run () from /lib/libdl.so.2
#6  0x40019118 in dlclose () from /lib/libdl.so.2
#7  0x402f9ffc in ao_shutdown () from /usr/lib/libao.so.2
#8  0x40c57bd4 in exit () from /lib/libc.so.6
#9  0x000182fc in main ()

Would any glibc hackers feel like taking a closer look at this?

Cheers,
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From - Thu Nov 08 21:02:04 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH -mm 0/3] fix iommu segment boundary problems (parisc)
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Cc: fujita.tomonori@lab.ntt.co.jp, linux-kernel@vger.kernel.org,
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To: grundler@parisc-linux.org (Grant Grundler)
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> And thanks to Joel Soete (rubisher) for testing. I tried to test the
> sba_iommu code on my local box but had issues with the unpatched kernel
> (using kyle's parisc-2.6.git tree) that I have yet to resolve (could be
> HW problems).

I built two kernels today using kyle's parisc-2.6.git tree (UP 32 bit
and SMP 64 bit).  Aside from some section mismatch warnings, they both
seem to work fine.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Russell King - ARM Linux <linux@arm.linux.org.uk>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
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Cc: linux-arch@vger.kernel.org, Chris Zankel <chris@zankel.net>,
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On Wed, Feb 27, 2008 at 05:04:41PM -0700, Bjorn Helgaas wrote:
> Move bridge enable from pcibios_enable_resources() to
> platform_pci_enable_device() so the former matches other
> architectures and can be shared.
> 
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
> 
> Index: work6/arch/arm/kernel/bios32.c
> ===================================================================
> --- work6.orig/arch/arm/kernel/bios32.c	2008-02-27 11:25:29.000000000 -0700
> +++ work6/arch/arm/kernel/bios32.c	2008-02-27 11:55:59.000000000 -0700
> @@ -683,15 +683,32 @@
>  			cmd |= PCI_COMMAND_MEMORY;
>  	}
>  
> +	if (cmd != old_cmd) {
> +		printk("PCI: enabling device %s (%04x -> %04x)\n",
> +		       pci_name(dev), old_cmd, cmd);

Should be dev_info().

Apart from that...

Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>

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To: Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>
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On Thursday 06 March 2008 08:06:40 am Russell King - ARM Linux wrote:
> On Wed, Feb 27, 2008 at 05:04:41PM -0700, Bjorn Helgaas wrote:
> > Move bridge enable from pcibios_enable_resources() to
> > platform_pci_enable_device() so the former matches other
> > architectures and can be shared.
> > 
> > Signed-off-by: Bjorn Helgaas <bjorn.helgaas-VXdhtT5mjnY@public.gmane.org>
> > 
> > Index: work6/arch/arm/kernel/bios32.c
> > ===================================================================
> > --- work6.orig/arch/arm/kernel/bios32.c	2008-02-27 11:25:29.000000000 -0700
> > +++ work6/arch/arm/kernel/bios32.c	2008-02-27 11:55:59.000000000 -0700
> > @@ -683,15 +683,32 @@
> >  			cmd |= PCI_COMMAND_MEMORY;
> >  	}
> >  
> > +	if (cmd != old_cmd) {
> > +		printk("PCI: enabling device %s (%04x -> %04x)\n",
> > +		       pci_name(dev), old_cmd, cmd);
> 
> Should be dev_info().
> 
> Apart from that...
> 
> Acked-by: Russell King <rmk+kernel-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>

I fixed that in the v3 patch that Greg KH put in his tree.

Thanks,
  Bjorn
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [patch] Remove HPUX and SOM support
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On Sun, Mar 02, 2008 at 09:28:28PM -0800, Randolph Chung wrote:
> Remove unsupported and bitrotten HPUX and SOM support from the kernel.
> 
> Signed-off-by: Randolph Chung <tausq@parisc-linux.org>
> 
> randolph

I still have some HP-UX boxes... I guess I can fix it.

Maybe I'll get HP-UX elf support going too, or something.
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On Wed, Dec 26, 2007 at 06:07:01PM +0100, Helge Deller wrote:
> Just resending it to our new mailing list (my original mail was eaten by our old list).
> Kyle wanted to (partly) add it to his tree, but it's not there yet.
> 
> Helge
> 

Got it, sorry.

--Kyle
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From: Joel Soete <soete.joel@scarlet.be>
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Subject: Yet another ccio fix idea?
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Hello Grant,

Always tracking this ccio-dma bug, I figure out this stuff could be helpfull:
--- a/drivers/parisc/ccio-dma.c	2008-03-09 12:55:00.000000000 +0000
+++ b/drivers/parisc/ccio-dma.c	2008-03-09 12:55:21.000000000 +0000
@@ -802,7 +802,7 @@
  			 * Hopefully someone figures out how to patch (NOP) the
  			 * FDC/SYNC out at boot time.
  			 */
-			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
+			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));

What's your opinion?

Tx,
	r.
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On Sun, Mar 09, 2008 at 01:55:15PM +0000, Joel Soete wrote:
> Hello Grant,
>
> Always tracking this ccio-dma bug, I figure out this stuff could be 
> helpfull:
> --- a/drivers/parisc/ccio-dma.c	2008-03-09 12:55:00.000000000 +0000
> +++ b/drivers/parisc/ccio-dma.c	2008-03-09 12:55:21.000000000 +0000
> @@ -802,7 +802,7 @@
>  			 * Hopefully someone figures out how to patch (NOP) the
>  			 * FDC/SYNC out at boot time.
>  			 */
> -			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
> +			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
>
> What's your opinion?

I think you are right. That's what sba_iommu.c is using on line 560.

Have you tested this to see if it solves your problem?

cheers,
grant
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On Sun, Mar 09, 2008 at 01:55:15PM +0000, Joel Soete wrote:
> Hello Grant,
>
> Always tracking this ccio-dma bug, I figure out this stuff could be 
> helpfull:
> --- a/drivers/parisc/ccio-dma.c	2008-03-09 12:55:00.000000000 +0000
> +++ b/drivers/parisc/ccio-dma.c	2008-03-09 12:55:21.000000000 +0000
> @@ -802,7 +802,7 @@
>  			 * Hopefully someone figures out how to patch (NOP) the
>  			 * FDC/SYNC out at boot time.
>  			 */
> -			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
> +			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));

BTW, once you've tested/demostrated this fixes the DMA problems on C-xxx,
please resend with "Signed-off-by:" line.

thanks,
grant

>
> What's your opinion?
>
> Tx,
> 	r.
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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
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Subject: [PATCH] make ptr_to_pide() static
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Sorry, I should have made ptr_to_pide() static.

=
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Subject: [PATCH] make ptr_to_pide() static

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 drivers/parisc/sba_iommu.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index e834127..a8b7699 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -314,8 +314,8 @@ sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents)
 #define RESMAP_MASK(n)    (~0UL << (BITS_PER_LONG - (n)))
 #define RESMAP_IDX_MASK   (sizeof(unsigned long) - 1)
 
-unsigned long ptr_to_pide(struct ioc *ioc, unsigned long *res_ptr,
-			  unsigned int bitshiftcnt)
+static unsigned long ptr_to_pide(struct ioc *ioc, unsigned long *res_ptr,
+				 unsigned int bitshiftcnt)
 {
 	return (((unsigned long)res_ptr - (unsigned long)ioc->res_map) << 3)
 		+ bitshiftcnt;
-- 
1.5.3.7

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From - Thu Nov 08 21:02:04 2018
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> On Sun, Mar 09, 2008 at 01:55:15PM +0000, Joel Soete wrote:
> > Hello Grant,
> >
> > Always tracking this ccio-dma bug, I figure out this stuff could be 
> > helpfull:
> > --- a/drivers/parisc/ccio-dma.c	2008-03-09 12:55:00.000000000 +0000
> > +++ b/drivers/parisc/ccio-dma.c	2008-03-09 12:55:21.000000000 +0000
> > @@ -802,7 +802,7 @@
> >  			 * Hopefully someone figures out how to patch (NOP) the
> >  			 * FDC/SYNC out at boot time.
> >  			 */
> > -			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
> > +			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
> 
> BTW, once you've tested/demostrated this fixes the DMA problems on C-xxx,
> please resend with "Signed-off-by:" line.
> 
I would very to say: "Yes it works" like make me falsely guess this test on a
d380 with an disk connected to ncr53c720 hba:
# CNT=0; while true; do nice -n -5 tar -xslpf linux-2.6-trace.tar; nice -n -5
rm -rf linux-2.6-trace; CNT=$(($CNT + 1)); echo "CNT=$CNT"; date; done

it run several hours without issue, till console shows me again a failure in
the fs:
#CNT=1
#Mon Mar 10 12:33:54 CET 2008
#CNT=2
#Mon Mar 10 12:35:14 CET 2008

#CNT=190
#Mon Mar 10 16:32:29 CET 2008
#CNT=191
#Mon Mar 10 16:33:44 CET 2008

But again same kind of error:
#EXT3-fs error (device sdb9): ext3_readdir: bad entry in directory #99187:
rec_len % 4 != 0 - offset=0, inode=1953393
#EXT3-fs warning (device sdb9): empty_dir: bad directory (dir #99187) - no `.'
or `..'          

Note that the 53c710 of the external drive didn't shows much better results:
#scsi3: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN         
                                       
#scsi3: Bus Reset detected, executing command 1fe1f2c0, slot 1fe388a4, dsp
003781e8[01e8]                                            
# failing command because of reset, slot 1fe388a4, cmnd 1fe1f2c0

just during a dist-upgrade.

Sorry,
    r.

> thanks,
> grant
> 
> >
> > What's your opinion?
> >
> > Tx,
> > 	r.
> --
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> 
---
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http://www.scarlet.be/

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> > On Sun, Mar 09, 2008 at 01:55:15PM +0000, Joel Soete wrote:
> > > Hello Grant,
> > >
> > > Always tracking this ccio-dma bug, I figure out this stuff could be 
> > > helpfull:
> > > --- a/drivers/parisc/ccio-dma.c	2008-03-09 12:55:00.000000000 +0000
> > > +++ b/drivers/parisc/ccio-dma.c	2008-03-09 12:55:21.000000000 +0000
> > > @@ -802,7 +802,7 @@
> > >  			 * Hopefully someone figures out how to patch (NOP) the
> > >  			 * FDC/SYNC out at boot time.
> > >  			 */
> > > -			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
> > > +			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
> > 
> > BTW, once you've tested/demostrated this fixes the DMA problems on C-xxx,
> > please resend with "Signed-off-by:" line.

The existing code is clearly wrong.  pdir_ptr[7] is not a pointer and
the previous statement sets it to zero to clear the valid bit.  So, don't
drop this line of investigation.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:02:04 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: Yet another ccio fix idea?
Date: Mon, 10 Mar 2008 14:59:47 -0500
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To: Joel Soete <soete.joel@scarlet.be>
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On Sun, 2008-03-09 at 13:55 +0000, Joel Soete wrote:
> Hello Grant,
> 
> Always tracking this ccio-dma bug, I figure out this stuff could be helpfull:
> --- a/drivers/parisc/ccio-dma.c	2008-03-09 12:55:00.000000000 +0000
> +++ b/drivers/parisc/ccio-dma.c	2008-03-09 12:55:21.000000000 +0000
> @@ -802,7 +802,7 @@
>   			 * Hopefully someone figures out how to patch (NOP) the
>   			 * FDC/SYNC out at boot time.
>   			 */
> -			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
> +			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));

That's the wrong fix.  What it's trying to do is flush the write made
above this to pdir_ptr[7].  Therefore there should be an '&' in front,
so

asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[7]))

Flushing pdir_ptr may or may not work depending on the cache line width
(pdr_ptr[7] is 28 bytes away, so if the line size is 16 it will fail;
although I think almost every machine with a ccio has a 32 byte or
higher cache line width).

James


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: Yet another ccio fix idea?
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> asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[7]))
> 
> Flushing pdir_ptr may or may not work depending on the cache line width
> (pdr_ptr[7] is 28 bytes away, so if the line size is 16 it will fail;
> although I think almost every machine with a ccio has a 32 byte or
> higher cache line width).

Actually, pdr_ptr is a char *, so this is 7 bytes away.  However,
I think you are correct in saying that pdr_ptr[7] needs to be flushed.

The same issue would appear to apply to the other flush in the file.

The cache line alignment of pdir's isn't immediately apparent to
me.  If the pdir was defined as a two word array, it might span
two lines.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: Segfault when ogg123 exits
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On Wed, Mar 5, 2008 at 5:31 PM, Stuart Brady <sdbrady@ntlworld.com> wrote:
>  It seems ogg123 segfaults when it finishes playing.  Note that I'm not
>  pressing ^C -- I'm not even sure whether the "^C bug" is still around.
>  From the backtrace, it looks like this may well be the same problem I
>  reported with SDL_Quit() and timer_create():
>
>  #0  0x00000000 in ?? ()
>  #1  0x400a7aac in _dl_close_worker () from /lib/ld.so.1
>  #2  0x400a7c08 in _dl_close () from /lib/ld.so.1
>  #3  0x400190dc in dlclose_doit () from /lib/libdl.so.2
>  #4  0x400a1834 in _dl_catch_error () from /lib/ld.so.1
>  #5  0x40019590 in _dlerror_run () from /lib/libdl.so.2
>  #6  0x40019118 in dlclose () from /lib/libdl.so.2
>  #7  0x402f9ffc in ao_shutdown () from /usr/lib/libao.so.2
>  #8  0x40c57bd4 in exit () from /lib/libc.so.6
>  #9  0x000182fc in main ()
>
>  Would any glibc hackers feel like taking a closer look at this?

Can you distill this into a smaller testcase? Maybe a call to dlopen()
to load a library that has a function called by timer_create?

Cheers,
Carlos.
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On Mon, Mar 10, 2008 at 08:39:12PM -0400, Carlos O'Donell wrote:
> Can you distill this into a smaller testcase? Maybe a call to dlopen()
> to load a library that has a function called by timer_create?

I just ran ogg123 in gdb with a breakpoint set on timer_create(), and it
didn't get triggered, so timer_create() itself seems unlikely to be the
problem, but I can certainly try chopping libao down a bit.

BTW, this happens with both the OSS and ALSA plugins.

Side note: I've found that while running 'while (true); do true; done',
mmapped ALSA output seems to work!  If I drop the brackets, I just get 
noise -- presumably because it doesn't fork without them.
-- 
Stuart Brady
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On Mon, Mar 10, 2008 at 08:43:24PM +0900, FUJITA Tomonori wrote:
> Sorry, I should have made ptr_to_pide() static.
> 

np. ack.
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On Tue, 11 Mar 2008 16:00:17 -0400
Kyle McMartin <kyle@mcmartin.ca> wrote:

> On Mon, Mar 10, 2008 at 08:43:24PM +0900, FUJITA Tomonori wrote:
> > Sorry, I should have made ptr_to_pide() static.
> > 
> 
> np. ack.

Thanks, can you please push this via your git tree?
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On Mon, Mar 10, 2008 at 10:09 PM, Stuart Brady <sdbrady@ntlworld.com> wrote:
>  I just ran ogg123 in gdb with a breakpoint set on timer_create(), and it
>  didn't get triggered, so timer_create() itself seems unlikely to be the
>  problem, but I can certainly try chopping libao down a bit.

Excellent, this is exactly the way you want to track this down. You
may wish to run strace to see what types of system calls the program
is making.

Cheers,
Carlos.
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> > asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[7]))
> > 
> > Flushing pdir_ptr may or may not work depending on the cache line width
> > (pdr_ptr[7] is 28 bytes away, so if the line size is 16 it will fail;
> > although I think almost every machine with a ccio has a 32 byte or
> > higher cache line width).
> 
> Actually, pdr_ptr is a char *, so this is 7 bytes away.  However,
> I think you are correct in saying that pdr_ptr[7] needs to be flushed.
> 
> The same issue would appear to apply to the other flush in the file.
> 
> The cache line alignment of pdir's isn't immediately apparent to
> me.  If the pdir was defined as a two word array, it might span
> two lines.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> 
> 
mmm follwing stuff shouldn't so be enough:
Index: b/drivers/parisc/ccio-dma.c
===================================================================
--- a/drivers/parisc/ccio-dma.c 2008-03-12 08:49:20.000000000 +0000
+++ b/drivers/parisc/ccio-dma.c 2008-03-12 08:50:54.000000000 +0000
@@ -624,7 +624,8 @@
        ** the real mode coherence index generation of U2, the PDIR entry
        ** must be flushed to memory to retain coherence."
        */
-       asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
+       asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[1]));
+       asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[0]));
        asm volatile("sync");
 }

@@ -695,7 +696,7 @@
                ** Hopefully someone figures out how to patch (NOP) the
                ** FDC/SYNC out at boot time.
                */
-               asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
+               asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[7]));

                iovp     += IOVP_SIZE;
                byte_cnt -= IOVP_SIZE;
=== <> ===

Specialy for the first hunk where pdir_ptr is a u64 *:
ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
                   unsigned long hints)

into which with temporary pa var (defined as an unsigned long)
        register unsigned long pa;

*pdir_ptr is changed like
        ((u32 *)pdir_ptr)[1] = (u32) pa;
[snip]
        ((u32 *)pdir_ptr)[0] = (u32) pa;

What would be the best way to works?

Tx,
    r.

PS: in this doc feb96a6.pdf (easy to find) it was said:
"[snip]
Entries in the PA 7200 and PA 8000 caches are stored in lines
of 32 bytes.
[snip]

Because one-word writes occur in the I/O system,
for registers, semaphores, or short DMA writes it was necessary that the I/O
adapter implement a one-line-deep cache to
buffer cache lines, so that these one-word writes could be executed by
performing a coherent read private transaction on
the Runway bus, obtaining the most recent copy of the cache line, modifying it
locally in cache, and finally writing the
modified line back to main memory. For the I/O adapter to support a cache on
the Runway bus, it has to have the ability to
compare processor-generated virtual address transactions with the address
contained in its cache to ensure that the
processors always receive the most up-to-date data.
[s
[snip]"

2 thinks:
    - it seems to confirm that cache line is well 32bytes wide ;-)

    - for 'one word writes...' how should it be implemented?
      It look like the sba_iommu driver:
      "READ_REG(ioc-ioc_ha_IOC_PCOM); /* flush purges */
      but without more detailed docs on U2/UTurn ccio, I don't know how to
      implement matter, sorry.

 

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On Wed, 2008-03-12 at 10:16 +0100, rubisher wrote:
> -       asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
> +       asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[1]));
> +       asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[0]));
>         asm volatile("sync");

Actually, no, I'm afraid this is wrong.

The code is a complete dogs breakfast, since pdir_ptr is defined as u64
* in ccio_pdir_entry() and char * in ccio_mark_invalid.

What Dave was pointing out is that this structure is 8 bytes long and
may span two cache lines on the word boundary.  Assuming that's the
case, this needs to flush the first and second word, not the first and
second u64 entry as your code would (the second flush is actually
flushing the next pdir entry).

However, since it's contained in a u64 pointer, it must reasonably be on
an 8 byte boundary (or be triggering an unaligned poiner error) and
therefore shouldn't span multiple cache lines anyway.

James


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Subject: Re: Yet another ccio fix idea?
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> However, since it's contained in a u64 pointer, it must reasonably be on
> an 8 byte boundary (or be triggering an unaligned poiner error) and
> therefore shouldn't span multiple cache lines anyway.

It's not a hard rule that u64 objects be aligned on an 8 byte
boundary as the PA 1.x architecture doesn't have 64-bit integer
loads and stores.  A u64 object has to be loaded with two
32-bit loads and lives in a pair of 32-bit registers.  As a 
result, an unaligned u64 object will only trigger an unaligned
pointer error if it is not aligned on a 4 byte boundary.

However in GCC, we force u64 alignment (except in packed structs)
to a 8 byte boundary.  This allows casting pointers between long
longs and doubles.  It also simplifies the GCC backend as otherwise
special treatment would be needed for long longs.  There's been some
discussion of this for x86 recently.

In this situation, the alignment of pdir's depends on how they
were originally declared.  If declared as long long, GCC will give
them 8 byte alignment, so the two words should always be in the
same cache line.  On the otherhand, if the pdir is declared as
a pair of 32-bit words, the pdir might span two cache lines.

Dave
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From - Thu Nov 08 21:02:06 2018
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Subject: Re: Yet another ccio fix idea?
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> In this situation, the alignment of pdir's depends on how they
> were originally declared.  If declared as long long, GCC will give
> them 8 byte alignment, so the two words should always be in the
> same cache line.  On the otherhand, if the pdir is declared as
> a pair of 32-bit words, the pdir might span two cache lines.

It looks to me like pdirs should be 8 byte aligned and thus always
should lie in a cache line.

The following insn appears to put hints in the wrong place on
a 64-bit kernel since `pa' is then a 64-bit type:

        asm volatile("depw  %1,31,12,%0" : "+r" (pa) : "r" (hints));

The depw will operate on the left word.  Looks like it should be

        asm volatile("depw  %1,31,12,%R0" : "+r" (pa) : "r" (hints));

when __LP64__ is defined.  Think the same is true for the following
depw as well.

Dave
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From - Thu Nov 08 21:02:06 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: Yet another ccio fix idea?
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On Mon, Mar 10, 2008 at 02:59:47PM -0500, James Bottomley wrote:
> On Sun, 2008-03-09 at 13:55 +0000, Joel Soete wrote:
> > Hello Grant,
> > 
> > Always tracking this ccio-dma bug, I figure out this stuff could be helpfull:
> > --- a/drivers/parisc/ccio-dma.c	2008-03-09 12:55:00.000000000 +0000
> > +++ b/drivers/parisc/ccio-dma.c	2008-03-09 12:55:21.000000000 +0000
> > @@ -802,7 +802,7 @@
> >   			 * Hopefully someone figures out how to patch (NOP) the
> >   			 * FDC/SYNC out at boot time.
> >   			 */
> > -			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
> > +			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
> 
> That's the wrong fix.  What it's trying to do is flush the write made
> above this to pdir_ptr[7].  Therefore there should be an '&' in front,
> so
> 
> asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[7]))

In this case, it's certainly the same cacheline.
I can guarantee pdir_ptr is 8 byte aligned.

> Flushing pdir_ptr may or may not work depending on the cache line width
> (pdr_ptr[7] is 28 bytes away, so if the line size is 16 it will fail;
> although I think almost every machine with a ccio has a 32 byte or
> higher cache line width).

Yes (32-byte cachelines at least) and jda already pointed out pdir_ptr
is a char*.

thanks,
grant

> 
> James
> 
> 
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: Yet another ccio fix idea?
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On Wed, Mar 12, 2008 at 07:47:22AM -0400, James Bottomley wrote:
> On Wed, 2008-03-12 at 10:16 +0100, rubisher wrote:
> > -       asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
> > +       asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[1]));
> > +       asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[0]));
> >         asm volatile("sync");
> 
> Actually, no, I'm afraid this is wrong.
> 
> The code is a complete dogs breakfast, since pdir_ptr is defined as u64
> * in ccio_pdir_entry() and char * in ccio_mark_invalid.

*ugh* sorry about that.
And pdir_ptr cast to "u32 *" in both uses where it's dereferenced.


> What Dave was pointing out is that this structure is 8 bytes long and
> may span two cache lines on the word boundary.  Assuming that's the
> case, this needs to flush the first and second word, not the first and
> second u64 entry as your code would (the second flush is actually
> flushing the next pdir entry).
> 
> However, since it's contained in a u64 pointer, it must reasonably be on
> an 8 byte boundary (or be triggering an unaligned poiner error) and
> therefore shouldn't span multiple cache lines anyway.

pdir_ptr will always point at a u64 * and will always be 8 byte aligned.
The allocation is done in ccio_ioc_init():
        ioc->pdir_base = (u64 *)__get_free_pages(GFP_KERNEL,
                                                 get_order(ioc->pdir_size));

hth,
grant

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From - Thu Nov 08 21:02:06 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: 'Trace patches test' [Was: ccio_clear_io_tlb() and
	__raw_write() more question?]
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On Fri, Jan 25, 2008 at 11:17:29AM +0100, rubisher wrote:
...

Sorry for not replying to this sooner. This got "lost" in my inbox.

> > > (just what would give me DEBUG_RUN() printk() but without
> > >  degrading system performance)
> >
> > I don't believe that. :)
> > Measure the CPU utilization and/or compare pktgen performance with
> > and without the tracing compiled into the kernel.
> >
> Having no clue about pktgen, I have a look and rebuild kernels with this
> option and here are some results:

Thanks! This is excellent data - well done!


> I use a pktgen-single script like:

[ deleted sh script to drive pktgen ]

...
> # With Kernel including ccio_trace_marker but ccio_trace module not running
...
> Result: OK: 59844395(c59626778+d217617) usec, 455759 (60byte,0frags)
>   7615pps 3Mb/sec (3655200bps) errors: 0

vs.

> # With Kernel including ccio_trace_marker and ccio_trace module running
...
> Result: OK: 63882397(c59547733+d4334664) usec, 138863 (60byte,0frags)
>   2173pps 1Mb/sec (1043040bps) errors: 0

vs.

> # With Kernel without ccio_trace_marker
...
> Result: OK: 61980765(c61791828+d188937) usec, 474350 (60byte,0frags)
>   7653pps 3Mb/sec (3673440bps) errors: 0
> 
> I am not sure how to read those results so I also do some ftp and grab
> following data:

Compare the "pps" numbers.
The ccio_trace_marker code reduces performance by 0.49%.

(7653-7615)/7653

It's no surprise with tracing on, performance is 3.6x lower.

But those pps numbers look really low to me.
Was that with 100BT or GigE NIC?

If it was 100BT, then we probably are not CPU bound and are more
likely perf limited by the NIC. We'd need HW counters to determine
the exact CPU utilization and we never got CPU perf counters working.

I've not tested pktgen with gige NIC on parisc...only on ia64 (ZX1).
On ZX1 chipset I got up to 880,000 pps with careful tuning.
Given the 64-bit x 66Mhz PCI bus is running 1/2 as fast and parisc
generally is running a much older chipset (Astro has higher mem latency),
I expect the parisc gigE numbers to be substantially lower but still
in the 50-100K pps range.


> # With Kernel including ccio_trace_marker but ccio_trace module not running
> ftp> put linux-2.6.24-rc4-pa-git-20071206.tar.bz2
...
> 47631536 bytes sent in 54.42 secs (854.8 kB/s)
> 
> # With Kernel including ccio_trace_marker and ccio_trace module running
...
> 47631536 bytes sent in 59.26 secs (784.9 kB/s)
> 
> # With kernel without ccio_trace_marker
...
> 47631536 bytes sent in 55.66 secs (835.8 kB/s)

The ftp results don't match the pktgen results.  The last result
(without ccio_trace_marker) should be fastest.

One thing I love about pktgen is the results are _very_ consistent
given a particular HW config. I trust those numbers much more than
the ftp or any other "real" network test for in-system comparisions.

> I agree it decrease a bit the system performance but doesn't slow it down so
> much that it would take several hours to boot has printk() did to me ;-)

*nod* definitely true.

> > However, that doesn't mean this is useless. This is alot better than
> > rolling our own "light weight" tracing mechanism and it's certainly
> > alot better than using printk's to debug DMA issues (as long as
> > the system doesn't crash - e.g. HPMC).
> 
> Yes there are limits to this method but for parisc I know so few kernel
> debugging tools that I would like to mentioned here the easiness of this patch
> implementation (even for a non C programmer as I ;<)
> 
> Cheers,
>     r.
> 
> PS: I didn't put this code here just because all what I have wouldn't apply on
> the current p-l ccio-dma.c src.

That's ok. Like I said before, I'd be willing to accept the patch
as long as it has "#ifdef" around all the code. Kernel developers
can enable/use it if they want. I see no reason to have it on
by default for anyone else.

thanks,
grant

> 
> 
> > hth,
> > grant
> >
> > > I still have to had some more DEBUG_RUN_SG() stuff and hope to be able to
> > > collect more.
> > >
> > > Cheers,
> > >     r.
> > >
> > > ---
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Subject: Re: Yet another ccio fix idea?
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On Mon, Mar 10, 2008 at 01:26:43PM -0400, John David Anglin wrote:
> > > On Sun, Mar 09, 2008 at 01:55:15PM +0000, Joel Soete wrote:
> > > > Hello Grant,
> > > >
> > > > Always tracking this ccio-dma bug, I figure out this stuff could be 
> > > > helpfull:
> > > > --- a/drivers/parisc/ccio-dma.c	2008-03-09 12:55:00.000000000 +0000
> > > > +++ b/drivers/parisc/ccio-dma.c	2008-03-09 12:55:21.000000000 +0000
> > > > @@ -802,7 +802,7 @@
> > > >  			 * Hopefully someone figures out how to patch (NOP) the
> > > >  			 * FDC/SYNC out at boot time.
> > > >  			 */
> > > > -			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
> > > > +			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
> > > 
> > > BTW, once you've tested/demostrated this fixes the DMA problems on C-xxx,
> > > please resend with "Signed-off-by:" line.
> 
> The existing code is clearly wrong.  pdir_ptr[7] is not a pointer and
> the previous statement sets it to zero to clear the valid bit.  So, don't
> drop this line of investigation.

Dave is right. Please submit the proper patch (with Signed-off-by)
and I'll Ack it.

I was hoping testing this would "just work".

thanks,
grant

> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Wed, Mar 12, 2008 at 10:16:29AM +0100, rubisher wrote:
...
> mmm follwing stuff shouldn't so be enough:
> Index: b/drivers/parisc/ccio-dma.c
> ===================================================================
> --- a/drivers/parisc/ccio-dma.c 2008-03-12 08:49:20.000000000 +0000
> +++ b/drivers/parisc/ccio-dma.c 2008-03-12 08:50:54.000000000 +0000
> @@ -624,7 +624,8 @@
>         ** the real mode coherence index generation of U2, the PDIR entry
>         ** must be flushed to memory to retain coherence."
>         */
> -       asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
> +       asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[1]));
> +       asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[0]));

NACK

>         asm volatile("sync");
>  }
> 
> @@ -695,7 +696,7 @@
>                 ** Hopefully someone figures out how to patch (NOP) the
>                 ** FDC/SYNC out at boot time.
>                 */
> -               asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
> +               asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[7]));

NACK - keep it simple with the original proposed patch.

> PS: in this doc feb96a6.pdf (easy to find) it was said:
> "[snip]
> Entries in the PA 7200 and PA 8000 caches are stored in lines
> of 32 bytes.
> [snip]
> 
> Because one-word writes occur in the I/O system, for registers,
> semaphores, or short DMA writes it was necessary that the I/O
> adapter implement a one-line-deep cache to buffer cache lines,
> so that these one-word writes could be executed by performing
> a coherent read private transaction on the Runway bus, obtaining
> the most recent copy of the cache line, modifying it locally in
> cache, and finally writing the modified line back to main memory.
...

> 2 thinks:
>     - it seems to confirm that cache line is well 32bytes wide ;-)
> 
>     - for 'one word writes...' how should it be implemented?

"one word writes" refers to DMA writes, not CPU writes.

>       It look like the sba_iommu driver:
>       "READ_REG(ioc-ioc_ha_IOC_PCOM); /* flush purges */
>       but without more detailed docs on U2/UTurn ccio, I don't know how to
>       implement matter, sorry.

The IOMMU driver programs the IO Pdir with the results of "lci" instruction
and this should be all the IOMMU needs to coherently read/modify/write
the cacheline that the "one word" DMA write is targeting. In short,
it's already implemented or I'd think we'd see much worse problems
on ccio platforms.

hth,
grant

> 
> 
> 
> ---
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> > In this situation, the alignment of pdir's depends on how they
> > were originally declared.  If declared as long long, GCC will give
> > them 8 byte alignment, so the two words should always be in the
> > same cache line.  On the otherhand, if the pdir is declared as
> > a pair of 32-bit words, the pdir might span two cache lines.
> 
> It looks to me like pdirs should be 8 byte aligned and thus always
> should lie in a cache line.
> 
> The following insn appears to put hints in the wrong place on
> a 64-bit kernel since `pa' is then a 64-bit type:
> 
>         asm volatile("depw  %1,31,12,%0" : "+r" (pa) : "r" (hints));
> 
> The depw will operate on the left word.  Looks like it should be
> 
>         asm volatile("depw  %1,31,12,%R0" : "+r" (pa) : "r" (hints));
> 
As far as I never reach to boot a 64bit kernel on this box, I would like to
test but am I facing to a gcc bug or did I again miss something:
{standard input}: Assembler messages:
{standard input}:97: Error: Field out of range [0..31] (68).
{standard input}:97: Error: Invalid operands
{standard input}:1199: Error: Field out of range [0..31] (68).
{standard input}:1199: Error: Invalid operands
make[3]: *** [drivers/parisc/ccio-dma.o] Error 1

(The original compile fine???)

> when __LP64__ is defined.  Think the same is true for the following
> depw as well.
> 
Ok I will check in deep.

Tx,
    r.
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > > In this situation, the alignment of pdir's depends on how they
> > > were originally declared.  If declared as long long, GCC will give
> > > them 8 byte alignment, so the two words should always be in the
> > > same cache line.  On the otherhand, if the pdir is declared as
> > > a pair of 32-bit words, the pdir might span two cache lines.
> > 
> > It looks to me like pdirs should be 8 byte aligned and thus always
> > should lie in a cache line.
> > 
> > The following insn appears to put hints in the wrong place on
> > a 64-bit kernel since `pa' is then a 64-bit type:
> > 
> >         asm volatile("depw  %1,31,12,%0" : "+r" (pa) : "r" (hints));
> > 
> > The depw will operate on the left word.  Looks like it should be
> > 
> >         asm volatile("depw  %1,31,12,%R0" : "+r" (pa) : "r" (hints));
> > 
> As far as I never reach to boot a 64bit kernel on this box, I would like to
> test but am I facing to a gcc bug or did I again miss something:
> {standard input}: Assembler messages:
> {standard input}:97: Error: Field out of range [0..31] (68).
> {standard input}:97: Error: Invalid operands
> {standard input}:1199: Error: Field out of range [0..31] (68).
> {standard input}:1199: Error: Invalid operands
> make[3]: *** [drivers/parisc/ccio-dma.o] Error 1
> 
oops I need to better check why does it want to use fr:
     96 #APP
     97         depw  %r23,31,12,%fr4
     98 #NO_APP

   1198 #APP
   1199         depw  %r5,31,12,%fr4
   1200 #NO_APP

I will try to understand that next week.

r.
> (The original compile fine???)
> 
> > when __LP64__ is defined.  Think the same is true for the following
> > depw as well.
> > 
> Ok I will check in deep.
> 
> Tx,
>     r.
> > Dave
> > -- 
> > J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> > National Research Council of Canada              (613) 990-0752 (FAX:
952-6602)
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> > the body of a message to majordomo@vger.kernel.org
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> > 
> > 
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Subject: Re: Yet another ccio fix idea?
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> > The depw will operate on the left word.  Looks like it should be
> > 
> >         asm volatile("depw  %1,31,12,%R0" : "+r" (pa) : "r" (hints));

Sorry, the `R' to access the right half of pa is needed when generating
32-bit code.  The original form might be ok when generating 64-bit
code but I'd have to check the arch.  With 64-bit code, you might need
to use depd.  The other approach might be to change pa to u32.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: panic in iommu_is_span_boundary with 32-bit kernel on c3750
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Kyle's tree (vmlinux-2.6.25-rc4-01283-gef95dd8) panics on my c3750 at
iommu_is_span_boundary+0x28.  Looking at the code, I see the panic is
caused by a call with r23 = 0.  The call is from sba_alloc_range.  The
actual call appears to be from an inlined copy of sba_search_bitmap.
It seems that boundary_size must be 0.

Should there be a check in sba_search_bitmap, or is the problem
deeper in dma_get_seg_boundary?

Dave
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Subject: Re: panic in iommu_is_span_boundary with 32-bit kernel on c3750
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On Fri, Mar 14, 2008 at 07:31:54PM -0400, John David Anglin wrote:
> Kyle's tree (vmlinux-2.6.25-rc4-01283-gef95dd8) panics on my c3750 at
> iommu_is_span_boundary+0x28.

32-bit or 64-bit kernel?

>  Looking at the code, I see the panic is
> caused by a call with r23 = 0.  The call is from sba_alloc_range.  The
> actual call appears to be from an inlined copy of sba_search_bitmap.
> It seems that boundary_size must be 0.
> 
> Should there be a check in sba_search_bitmap, or is the problem
> deeper in dma_get_seg_boundary?

I don't expect a deeper problem given this definition:
static inline unsigned long dma_get_seg_boundary(struct device *dev)
{
        return dev->dma_parms ?
                dev->dma_parms->segment_boundary_mask : 0xffffffff;
}

I'm not sure how boundary_size could ever be zero.
Could this code generate a zero value?

        boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
        boundary_size >>= IOVP_SHIFT;

I thought ALIGN() would "ROUND_UP()". So it should always be at least 1
returned.

But in the 32-bit kernel ~0 + 1 == 0 (with overflow).
Will the ALIGN do the right thing in that case?
It looks like it will return 0 because of overflow and I think the
intent is "4GB >> IOVP_SHIFT" (so 20 bits, ie 1MB).
Maybe we want dma_get_seg_boundary() to deal with the ALIGN and other stuff
so it just returns a PAGE_SIZE count?

A simple test before assigning boundary_size would be to check
"dev->dma_parms". If dev->dma_parms is zero, just return 1 << 20
and see if that works for you.

But I'm pretty tired right now (long week) and I can't wrap my brain
around the bit flipping. Would be good if someone else confirmed.

cheers,
grant

> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Mar 15, 2008 at 01:05:48AM -0600, Grant Grundler wrote:
> On Fri, Mar 14, 2008 at 07:31:54PM -0400, John David Anglin wrote:
> > Kyle's tree (vmlinux-2.6.25-rc4-01283-gef95dd8) panics on my c3750 at
> > iommu_is_span_boundary+0x28.
> 
> 32-bit or 64-bit kernel?

doh...nm. I finally read the whole subject line (32-bit). :)
Please just ignore that and focus on the rest of the email.

grant

> 
> >  Looking at the code, I see the panic is
> > caused by a call with r23 = 0.  The call is from sba_alloc_range.  The
> > actual call appears to be from an inlined copy of sba_search_bitmap.
> > It seems that boundary_size must be 0.
> > 
> > Should there be a check in sba_search_bitmap, or is the problem
> > deeper in dma_get_seg_boundary?
> 
> I don't expect a deeper problem given this definition:
> static inline unsigned long dma_get_seg_boundary(struct device *dev)
> {
>         return dev->dma_parms ?
>                 dev->dma_parms->segment_boundary_mask : 0xffffffff;
> }
> 
> I'm not sure how boundary_size could ever be zero.
> Could this code generate a zero value?
> 
>         boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
>         boundary_size >>= IOVP_SHIFT;
> 
> I thought ALIGN() would "ROUND_UP()". So it should always be at least 1
> returned.
> 
> But in the 32-bit kernel ~0 + 1 == 0 (with overflow).
> Will the ALIGN do the right thing in that case?
> It looks like it will return 0 because of overflow and I think the
> intent is "4GB >> IOVP_SHIFT" (so 20 bits, ie 1MB).
> Maybe we want dma_get_seg_boundary() to deal with the ALIGN and other stuff
> so it just returns a PAGE_SIZE count?
> 
> A simple test before assigning boundary_size would be to check
> "dev->dma_parms". If dev->dma_parms is zero, just return 1 << 20
> and see if that works for you.
> 
> But I'm pretty tired right now (long week) and I can't wrap my brain
> around the bit flipping. Would be good if someone else confirmed.
> 
> cheers,
> grant
> 
> > 
> > Dave
> > -- 
> > J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> > National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
> > --
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From - Thu Nov 08 21:02:07 2018
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From: rubisher <rubisher@scarlet.be>
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Subject: Re: panic in iommu_is_span_boundary with 32-bit kernel on c3750
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John David Anglin wrote:
> Kyle's tree (vmlinux-2.6.25-rc4-01283-gef95dd8) panics on my c3750 at
> iommu_is_span_boundary+0x28.  Looking at the code, I see the panic is
> caused by a call with r23 = 0.  The call is from sba_alloc_range.  The
> actual call appears to be from an inlined copy of sba_search_bitmap.
> It seems that boundary_size must be 0.
> 
> Should there be a check in sba_search_bitmap, or is the problem
> deeper in dma_get_seg_boundary?
> 
> Dave

Yes Kyle tree doesn't yet include the latest patch of Fujita Tomonori?

Here it was:

Really sorry about the bug. Can you try the following patch? It's on
the top of the patchset.

Thanks,

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 2f3b364..d0855a1 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -366,8 +366,8 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
  	** ggg sacrifices another 710 to the computer gods.
  	*/

-	boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
-	boundary_size >>= IOVP_SHIFT;
+	boundary_size = ALIGN((unsigned long long)dma_get_seg_boundary(dev) + 1,
+			      1ULL << IOVP_SHIFT) >> IOVP_SHIFT;

  	if (pages_needed <= 8) {
  		/*
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index e834127..bdbe780 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -341,8 +341,8 @@ sba_search_bitmap(struct ioc *ioc, struct device *dev,
  	unsigned long shift;
  	int ret;

-	boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, 1 << IOVP_SHIFT);
-	boundary_size >>= IOVP_SHIFT;
+	boundary_size = ALIGN((unsigned long long)dma_get_seg_boundary(dev) + 1,
+			      1ULL << IOVP_SHIFT) >> IOVP_SHIFT;

  #if defined(ZX1_SUPPORT)
  	BUG_ON(ioc->ibase & ~IOVP_MASK);
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It works to me on c110, d380, b2k (32bit kernels) and b2k 64bit kernel.

Hth,
	r.
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From - Thu Nov 08 21:02:07 2018
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Subject: Re: Yet another ccio fix idea?
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John David Anglin wrote:
>>> The depw will operate on the left word.  Looks like it should be
>>>
>>>         asm volatile("depw  %1,31,12,%R0" : "+r" (pa) : "r" (hints));
> 
> Sorry, the `R' to access the right half of pa is needed when generating
> 32-bit code.  The original form might be ok when generating 64-bit
> code but I'd have to check the arch.  With 64-bit code, you might need
> to use depd.  The other approach might be to change pa to u32.
> 
> Dave
Ok if I have some time next week I will check.

Tx,
	r.
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Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>

---

  does this make sense?

diff --git a/include/asm-parisc/semaphore.h
b/include/asm-parisc/semaphore.h
index a16271c..3d5ee7a 100644
--- a/include/asm-parisc/semaphore.h
+++ b/include/asm-parisc/semaphore.h
@@ -44,7 +44,7 @@ struct semaphore {

 #define __SEMAPHORE_INITIALIZER(name, n)				\
 {									\
-	.sentry		= SPIN_LOCK_UNLOCKED,				\
+	.sentry		= __SPIN_LOCK_UNLOCKED(name),			\
 	.count		= n,						\
 	.wait		= __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)	\
 }
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry:
    Have classroom, will lecture.

http://crashcourse.ca                          Waterloo, Ontario, CANADA
========================================================================
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Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>

---

  whoops, ignore that earlier patch.  the actual standard is to
incorporate the structure member in the lock name, thusly:

diff --git a/include/asm-parisc/semaphore.h b/include/asm-parisc/semaphore.h
index a16271c..e4eba1e 100644
--- a/include/asm-parisc/semaphore.h
+++ b/include/asm-parisc/semaphore.h
@@ -44,7 +44,7 @@ struct semaphore {

 #define __SEMAPHORE_INITIALIZER(name, n)				\
 {									\
-	.sentry		= SPIN_LOCK_UNLOCKED,				\
+	.sentry		= __SPIN_LOCK_UNLOCKED((name).sentry),		\
 	.count		= n,						\
 	.wait		= __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)	\
 }
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry:
    Have classroom, will lecture.

http://crashcourse.ca                          Waterloo, Ontario, CANADA
========================================================================
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From - Thu Nov 08 21:02:07 2018
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From: rubisher <rubisher@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [Patch] ccio-dma.c [Was: Yet another ccio fix idea?]
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To: Grant Grundler <grundler@parisc-linux.org>
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Grant Grundler wrote:
> On Wed, Mar 12, 2008 at 10:16:29AM +0100, rubisher wrote:
> ...
>> mmm follwing stuff shouldn't so be enough:
>> Index: b/drivers/parisc/ccio-dma.c
>> ===================================================================
>> --- a/drivers/parisc/ccio-dma.c 2008-03-12 08:49:20.000000000 +0000
>> +++ b/drivers/parisc/ccio-dma.c 2008-03-12 08:50:54.000000000 +0000
>> @@ -624,7 +624,8 @@
>>         ** the real mode coherence index generation of U2, the PDIR entry
>>         ** must be flushed to memory to retain coherence."
>>         */
>> -       asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
>> +       asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[1]));
>> +       asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[0]));
> 
> NACK
> 
>>         asm volatile("sync");
>>  }
>>
>> @@ -695,7 +696,7 @@
>>                 ** Hopefully someone figures out how to patch (NOP) the
>>                 ** FDC/SYNC out at boot time.
>>                 */
>> -               asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
>> +               asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[7]));
> 
> NACK - keep it simple with the original proposed patch.
> 
Ok here it is:
Signed-off-by: Joel Soete <soete dot joel at scarlet dot be>
---
  drivers/parisc/ccio-dma.c |    2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

Index: b/drivers/parisc/ccio-dma.c
===================================================================
--- a/drivers/parisc/ccio-dma.c 2008-03-12 08:49:20.000000000 +0000
+++ b/drivers/parisc/ccio-dma.c 2008-03-15 19:19:52.000000000 +0000
@@ -695,7 +695,7 @@
                 ** Hopefully someone figures out how to patch (NOP) the
                 ** FDC/SYNC out at boot time.
                 */
-               asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
+               asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));

                 iovp     += IOVP_SIZE;
                 byte_cnt -= IOVP_SIZE;
=== <> ===

[snip]

Hth,
	r.
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From - Thu Nov 08 21:02:07 2018
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From: rubisher <rubisher@scarlet.be>
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Subject: Re: Yet another ccio fix idea?
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Grant Grundler wrote:
[snip]
>> PS: in this doc feb96a6.pdf (easy to find) it was said:
>> "[snip]
>> Entries in the PA 7200 and PA 8000 caches are stored in lines
>> of 32 bytes.
>> [snip]
>>
>> Because one-word writes occur in the I/O system, for registers,
>> semaphores, or short DMA writes it was necessary that the I/O
>> adapter implement a one-line-deep cache to buffer cache lines,
>> so that these one-word writes could be executed by performing
>> a coherent read private transaction on the Runway bus, obtaining
>> the most recent copy of the cache line, modifying it locally in
>> cache, and finally writing the modified line back to main memory.
> ...
> 
>> 2 thinks:
>>     - it seems to confirm that cache line is well 32bytes wide ;-)
>>
>>     - for 'one word writes...' how should it be implemented?
> 
> "one word writes" refers to DMA writes, not CPU writes.
> 
(tx it's not always easy to follow the master and the slave in this story)

>>       It look like the sba_iommu driver:
>>       "READ_REG(ioc-ioc_ha_IOC_PCOM); /* flush purges */
>>       but without more detailed docs on U2/UTurn ccio, I don't know how to
>>       implement matter, sorry.
> 
> The IOMMU driver programs the IO Pdir with the results of "lci" instruction
> and this should be all the IOMMU needs to coherently read/modify/write
> the cacheline that the "one word" DMA write is targeting. In short,
> it's already implemented or I'd think we'd see much worse problems
> on ccio platforms.
> 
> hth,
> grant
> 
Ok.

Just one thought because in the backport I did on ccio of your job on sba (which seems to works for me as well as previous 
stuff, may be a bit better for system low in ram like my c110), it was one of the matter related to io coherency which I 
didn't reach to backport?

Tx again,
	r.
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> Really sorry about the bug. Can you try the following patch? It's on
> the top of the patchset.

Thanks, this fixed the panic.

However, there's still something wrong with this kernel regarding user
authetication with ssh/sshd/pam:

Mar 16 09:55:06 hiauly6 sshd[11861]: Invalid user xxxx from 76.66.48.108
Mar 16 09:55:10 hiauly6 sshd[11864]: pam_unix(ssh:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=bas15-ottawa23-1279406188.dsl.bell.ca  user=xxxx
Mar 16 09:55:12 hiauly6 sshd[11861]: error: PAM: Authentication failure for illegal user xxxx from bas15-ottawa23-1279406188.dsl.bell.ca
Mar 16 09:55:12 hiauly6 sshd[11861]: Failed keyboard-interactive/pam for invalid user xxxx from 76.66.48.108 port 49155 ssh2
Mar 16 09:55:19 hiauly6 sshd[11867]: pam_unix(ssh:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=bas15-ottawa23-1279406188.dsl.bell.ca  user=xxxx
Mar 16 09:55:21 hiauly6 sshd[11861]: error: PAM: Authentication failure for illegal user xxxx from bas15-ottawa23-1279406188.dsl.bell.ca
Mar 16 09:55:21 hiauly6 sshd[11861]: Failed keyboard-interactive/pam for invalid user xxxx from 76.66.48.108 port 49155 ssh2

The actual user name has been changed to `xxxx', but it's correct.
Don't know why ssh thought the user was invalid the first time.

Started ssh again from remote node:

Mar 16 09:55:42 hiauly6 sshd[11900]: Accepted keyboard-interactive/pam for xxxx from 76.66.48.108 port 49156 ssh2
Mar 16 09:55:42 hiauly6 sshd[11908]: pam_unix(ssh:session): session opened for user xxxx by (uid=0)

With a previous 2.6.25 kernel, I actually ended up logged into a different
user account a couple of times.  This never happens with 2.6.22.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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The following changes since commit cdeeeae056a429e729ae9e914fa8142ee45bee93:
  Linus Torvalds (1):
        Linux 2.6.25-rc5

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git master

Adrian Bunk (1):
      [PARISC] move defconfig to arch/parisc/configs/

FUJITA Tomonori (1):
      [PARISC] make ptr_to_pide() static

Helge Deller (1):
      [PARISC] head.S: section mismatch fixes

James Bottomley (1):
      [PARISC] add pa8900 CPUs to hardware inventory

Joel Soete (1):
      [PARISC] pdc_stable: fix compile errors

Kyle McMartin (11):
      [PARISC] remove old timerfd syscall
      [PARISC] wire up timerfd syscalls
      [PARISC] move VMALLOC_* definitions to fixmap.h
      [PARISC] unbreak pgalloc.h
      [PARISC] bump __NR_syscalls
      [PARISC] remove unused pdc_iodc_printf function
      [PARISC] dump_stack in show_regs
      [PARISC] pdc_console: fix bizarre panic on boot
      [PARISC] clean up show_stack
      [PARISC] futex: special case cmpxchg NULL in kernel space
      [PARISC] add back Crestone Peak cpu

Randolph Chung (1):
      [PARISC] clean up include/asm-parisc/elf.h

Thibaut VARENE (1):
      [PARISC] add back AD1889 MAINTAINERS entry

 MAINTAINERS                                        |    9 ++++++
 arch/parisc/Makefile                               |    3 ++
 .../{defconfig => configs/default_defconfig}       |    0 
 arch/parisc/kernel/firmware.c                      |   27 +++++++++++------
 arch/parisc/kernel/hardware.c                      |   13 ++++++++-
 arch/parisc/kernel/head.S                          |    7 ++--
 arch/parisc/kernel/pdc_cons.c                      |   30 ++++++++++---------
 arch/parisc/kernel/syscall_table.S                 |    5 ++-
 arch/parisc/kernel/traps.c                         |   25 ++++++++++++++--
 drivers/parisc/pdc_stable.c                        |    6 ++--
 drivers/parisc/sba_iommu.c                         |    4 +-
 include/asm-parisc/elf.h                           |   22 ++++++--------
 include/asm-parisc/fixmap.h                        |    9 +++++-
 include/asm-parisc/futex.h                         |   10 +++++-
 include/asm-parisc/pdc.h                           |    3 +-
 include/asm-parisc/pgalloc.h                       |    4 +-
 include/asm-parisc/pgtable.h                       |    8 -----
 include/asm-parisc/unistd.h                        |    5 ++-
 18 files changed, 125 insertions(+), 65 deletions(-)
 rename arch/parisc/{defconfig => configs/default_defconfig} (100%)
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On Sun, Mar 16, 2008 at 1:35 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> The following changes since commit cdeeeae056a429e729ae9e914fa8142ee45bee93:
>   Linus Torvalds (1):
>         Linux 2.6.25-rc5

Thanks!

What hardware is this known to boot on? I want to update my base
kernel for userspace testing, currently 2.6.20.

Cheers,
Carlos.
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [git patches] parisc bug fixes for 2.6.25
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On Sun, Mar 16, 2008 at 02:22:20PM -0400, Carlos O'Donell wrote:
> On Sun, Mar 16, 2008 at 1:35 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> > The following changes since commit cdeeeae056a429e729ae9e914fa8142ee45bee93:
> >   Linus Torvalds (1):
> >         Linux 2.6.25-rc5
> 
> Thanks!
> 
> What hardware is this known to boot on? I want to update my base
> kernel for userspace testing, currently 2.6.20.
> 

no idea. it booted on my rp3440 and c8k
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Cc: Kyle McMartin <kyle@mcmartin.ca>, linux-parisc@vger.kernel.org,
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The functions time_before, time_before_eq, time_after, and time_after_e=
q are more robust for comparing jiffies against other values.

So following patch implements usage of the time_after() macro, defined =
at linux/jiffies.h, which deals with wrapping correctly

Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: linux-parisc@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: S.=C3=87a=C4=9Flar Onur <caglar@pardus.org.tr>
---
 arch/parisc/kernel/unaligned.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unalig=
ned.c
index aebf3c1..19b8a79 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -460,7 +460,7 @@ void handle_unaligned(struct pt_regs *regs)
 			goto force_sigbus;
 		}
=20
-		if (unaligned_count > 5 && jiffies - last_time > 5*HZ) {
+		if (unaligned_count > 5 && time_after(jiffies, last_time + 5 * HZ)) =
{
 			unaligned_count =3D 0;
 			last_time =3D jiffies;
 		}
--=20
1.5.4.3

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From - Thu Nov 08 21:02:08 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [git patches] parisc bug fixes for 2.6.25
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> On Sun, Mar 16, 2008 at 02:22:20PM -0400, Carlos O'Donell wrote:
> > On Sun, Mar 16, 2008 at 1:35 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> > > The following changes since commit cdeeeae056a429e729ae9e914fa8142ee45bee93:
> > >   Linus Torvalds (1):
> > >         Linux 2.6.25-rc5
> > 
> > Thanks!
> > 
> > What hardware is this known to boot on? I want to update my base
> > kernel for userspace testing, currently 2.6.20.
> > 
> 
> no idea. it booted on my rp3440 and c8k

It also boots on my c3750 (32-bit kernel).  However, sshd still is doing
wierd stuff.  Here's another example.

Mar 17 10:28:11 xxxxxx sshd[22586]: fatal: Privilege separation user sshd does not exist

This security bug leaves the system wide open to being compromised, so
I'm not going to use it.  I like 2.6.22.19 + Kyle's compat_sys_getdents
and irq.c patches.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:02:08 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [git patches] parisc bug fixes for 2.6.25
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On Mon, Mar 17, 2008 at 10:38:58AM -0400, John David Anglin wrote:
> > On Sun, Mar 16, 2008 at 02:22:20PM -0400, Carlos O'Donell wrote:
> > > On Sun, Mar 16, 2008 at 1:35 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> > > > The following changes since commit cdeeeae056a429e729ae9e914fa8142ee45bee93:
> > > >   Linus Torvalds (1):
> > > >         Linux 2.6.25-rc5
> > > 
> > > Thanks!
> > > 
> > > What hardware is this known to boot on? I want to update my base
> > > kernel for userspace testing, currently 2.6.20.
> > > 
> > 
> > no idea. it booted on my rp3440 and c8k
> 
> It also boots on my c3750 (32-bit kernel).  However, sshd still is doing
> wierd stuff.  Here's another example.
> 
> Mar 17 10:28:11 xxxxxx sshd[22586]: fatal: Privilege separation user sshd does not exist
> 

I don't see this... what is the machine running? I'm concerned maybe one
of the new syscalls is being used in glibc or something.

> This security bug leaves the system wide open to being compromised, so
> I'm not going to use it.  I like 2.6.22.19 + Kyle's compat_sys_getdents
> and irq.c patches.
> 
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [git patches] parisc bug fixes for 2.6.25
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--7JfCtLOvnd9MIVvH
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> > It also boots on my c3750 (32-bit kernel).  However, sshd still is doing
> > wierd stuff.  Here's another example.
> > 
> > Mar 17 10:28:11 xxxxxx sshd[22586]: fatal: Privilege separation user sshd does not exist
> > 
> 
> I don't see this... what is the machine running? I'm concerned maybe one
> of the new syscalls is being used in glibc or something.

c3750.  It doesn't happen instantly but I do have a gcc build/check
running.  Attached config.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--7JfCtLOvnd9MIVvH
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=config

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.25-rc5
# Sun Mar 16 15:37:29 2008
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_IRQ_PER_CPU=y
CONFIG_ARCH_SUPPORTS_AOUT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
# CONFIG_CGROUPS is not set
CONFIG_GROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_RT_GROUP_SCHED is not set
CONFIG_USER_SCHED=y
# CONFIG_CGROUP_SCHED is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_RELAY=y
# CONFIG_NAMESPACES is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_EMBEDDED=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_COMPAT_BRK=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
# CONFIG_MARKERS is not set
CONFIG_OPROFILE=m
CONFIG_HAVE_OPROFILE=y
# CONFIG_HAVE_KPROBES is not set
# CONFIG_HAVE_KRETPROBES is not set
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
CONFIG_BLOCK=y
# CONFIG_LBD is not set
# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_LSF is not set
# CONFIG_BLK_DEV_BSG is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_CLASSIC_RCU=y
# CONFIG_PREEMPT_RCU is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
# CONFIG_64BIT is not set
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
# CONFIG_SMP is not set
CONFIG_ARCH_FLATMEM_ENABLE=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_RCU_TRACE=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
# CONFIG_SPARSEMEM_STATIC is not set
# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_RESOURCES_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
# CONFIG_HPUX is not set

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
# CONFIG_GSC is not set
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_PCI_LEGACY=y
# CONFIG_PCI_DEBUG is not set
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_PDC_CHASSIS is not set
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set

#
# Networking
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=m
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
CONFIG_INET_XFRM_MODE_BEET=y
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IP_VS is not set
CONFIG_IPV6=m
# CONFIG_IPV6_PRIVACY is not set
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
CONFIG_INET6_IPCOMP=m
# CONFIG_IPV6_MIP6 is not set
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=m
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NETFILTER=y
CONFIG_NETFILTER_DEBUG=y
CONFIG_NETFILTER_ADVANCED=y

#
# Core Netfilter Configuration
#
# CONFIG_NETFILTER_NETLINK_QUEUE is not set
# CONFIG_NETFILTER_NETLINK_LOG is not set
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NETFILTER_XTABLES is not set

#
# IP: Netfilter Configuration
#
CONFIG_IP_NF_QUEUE=m
# CONFIG_IP_NF_IPTABLES is not set
# CONFIG_IP_NF_ARPTABLES is not set

#
# IPv6: Netfilter Configuration
#
# CONFIG_IP6_NF_QUEUE is not set
# CONFIG_IP6_NF_IPTABLES is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_SCHED is not set

#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set

#
# Wireless
#
# CONFIG_CFG80211 is not set
# CONFIG_WIRELESS_EXT is not set
# CONFIG_MAC80211 is not set
# CONFIG_IEEE80211 is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_FW_LOADER=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_UMEM=m
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ENCLOSURE_SERVICES is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=y
CONFIG_IDE_MAX_HWIFS=4
CONFIG_BLK_DEV_IDE=y

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_BLK_DEV_IDEDISK=m
# CONFIG_IDEDISK_MULTI_MODE is not set
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
CONFIG_BLK_DEV_IDESCSI=y
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y

#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=y
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=y
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
CONFIG_BLK_DEV_SIIMAGE=m
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDE_ARCH_OBSOLETE_INIT=y
# CONFIG_BLK_DEV_HD is not set

#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=m
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_NSP32 is not set
CONFIG_SCSI_DEBUG=m
# CONFIG_SCSI_SRP is not set
# CONFIG_ATA is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
# CONFIG_DM_MULTIPATH_EMC is not set
# CONFIG_DM_MULTIPATH_RDAC is not set
# CONFIG_DM_MULTIPATH_HP is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_UEVENT is not set
CONFIG_FUSION=y
CONFIG_FUSION_SPI=m
# CONFIG_FUSION_FC is not set
# CONFIG_FUSION_SAS is not set
CONFIG_FUSION_MAX_SGE=128
CONFIG_FUSION_CTL=m
# CONFIG_FUSION_LOGGING is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
# CONFIG_NETDEVICES_MULTIQUEUE is not set
CONFIG_DUMMY=m
CONFIG_BONDING=m
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
# CONFIG_PHYLIB is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_TULIP_NAPI is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
# CONFIG_EEPRO100 is not set
CONFIG_E100=m
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_R6040 is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SC92031 is not set
CONFIG_NETDEV_1000=y
CONFIG_ACENIC=m
# CONFIG_ACENIC_OMIT_TIGON_I is not set
# CONFIG_DL2K is not set
CONFIG_E1000=m
# CONFIG_E1000_NAPI is not set
# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_E1000E is not set
# CONFIG_E1000E_ENABLED is not set
# CONFIG_IP1000 is not set
# CONFIG_IGB is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_R8169 is not set
# CONFIG_SIS190 is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
# CONFIG_SK98LIN is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_TIGON3=m
# CONFIG_BNX2 is not set
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
CONFIG_NETDEV_10000=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_IXGBE is not set
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set
# CONFIG_MYRI10GE is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_NIU is not set
# CONFIG_MLX4_CORE is not set
# CONFIG_TEHUTI is not set
# CONFIG_BNX2X is not set
# CONFIG_TR is not set

#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 is not set

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_PPP=m
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPP_FILTER is not set
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
# CONFIG_PPP_MPPE is not set
CONFIG_PPPOE=m
# CONFIG_PPPOL2TP is not set
# CONFIG_SLIP is not set
CONFIG_SLHC=m
# CONFIG_NET_FC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1600
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1200
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ATKBD is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
CONFIG_INPUT_MOUSE=y
# CONFIG_MOUSE_PS2 is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=m
CONFIG_SERIO_SERPORT=m
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=m
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=13
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
CONFIG_GEN_RTC=y
CONFIG_GEN_RTC_X=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
CONFIG_RAW_DRIVER=y
CONFIG_MAX_RAW_DEVS=256
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set

#
# SPI support
#
# CONFIG_SPI is not set
# CONFIG_SPI_MASTER is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
CONFIG_THERMAL=y
# CONFIG_WATCHDOG is not set

#
# Sonics Silicon Backplane
#
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_SM501 is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
CONFIG_DAB=y
# CONFIG_USB_DABUSB is not set

#
# Graphics support
#
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_SYS_FOPS is not set
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_STI=y
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
CONFIG_DISPLAY_SUPPORT=y

#
# Display hardware drivers
#

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_LOGO_PARISC_CLUT224=y

#
# Sound
#
CONFIG_SOUND=y

#
# Advanced Linux Sound Architecture
#
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_SEQUENCER=y
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set

#
# Generic devices
#
CONFIG_SND_AC97_CODEC=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set

#
# PCI devices
#
CONFIG_SND_AD1889=y
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
# CONFIG_SND_AC97_POWER_SAVE is not set

#
# USB devices
#
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_CAIAQ is not set

#
# System on Chip audio support
#
# CONFIG_SND_SOC is not set

#
# SoC Audio support for SuperH
#

#
# ALSA SoC audio for Freescale SOCs
#

#
# Open Sound System
#
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=y
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HID_DEBUG is not set
# CONFIG_HIDRAW is not set

#
# USB Input Devices
#
CONFIG_USB_HID=y
# CONFIG_USB_HIDINPUT_POWERBOOK is not set
# CONFIG_HID_FF is not set
CONFIG_USB_HIDDEV=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_EHCI_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
CONFIG_USB_PRINTER=m

#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
#

#
# may also be needed; see USB_STORAGE Help for more information
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
CONFIG_USB_STORAGE_DPCM=y
CONFIG_USB_STORAGE_USBAT=y
CONFIG_USB_STORAGE_SDDR09=y
CONFIG_USB_STORAGE_SDDR55=y
CONFIG_USB_STORAGE_JUMPSHOT=y
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m
# CONFIG_USB_MON is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_AUERSWALD is not set
# CONFIG_USB_RIO500 is not set
CONFIG_USB_LEGOTOWER=m
# CONFIG_USB_LCD is not set
# CONFIG_USB_BERRY_CHARGE is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_PHIDGET is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_GADGET is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_INFINIBAND is not set
# CONFIG_RTC_CLASS is not set

#
# Userspace I/O
#
# CONFIG_UIO is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
# CONFIG_EXT4DEV_FS is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
CONFIG_XFS_FS=m
# CONFIG_XFS_QUOTA is not set
# CONFIG_XFS_SECURITY is not set
# CONFIG_XFS_POSIX_ACL is not set
# CONFIG_XFS_RT is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
CONFIG_AUTOFS4_FS=y
# CONFIG_FUSE_FS is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_DIRECTIO is not set
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V3_ACL is not set
# CONFIG_NFSD_V4 is not set
# CONFIG_NFSD_TCP is not set
CONFIG_ROOT_NFS=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
# CONFIG_SUNRPC_BIND34 is not set
# CONFIG_RPCSEC_GSS_KRB5 is not set
# CONFIG_RPCSEC_GSS_SPKM3 is not set
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=m
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_MAGIC_SYSRQ=y
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_DETECT_SOFTLOCKUP=y
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
CONFIG_DEBUG_MUTEXES=y
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_SAMPLES is not set
CONFIG_DEBUG_RODATA=y

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
CONFIG_CRYPTO=y
CONFIG_CRYPTO_ALGAPI=m
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_BLKCIPHER=m
# CONFIG_CRYPTO_SEQIV is not set
CONFIG_CRYPTO_MANAGER=m
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
CONFIG_CRYPTO_NULL=m
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=m
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_GF128MUL is not set
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_PCBC=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
CONFIG_CRYPTO_BLOWFISH=m
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SALSA20 is not set
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_MICHAEL_MIC is not set
CONFIG_CRYPTO_CRC32C=m
# CONFIG_CRYPTO_CAMELLIA is not set
CONFIG_CRYPTO_TEST=m
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_LZO is not set
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_HIFN_795X is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_CRC_CCITT=m
# CONFIG_CRC16 is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=m
CONFIG_ZLIB_DEFLATE=m
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y

--7JfCtLOvnd9MIVvH--
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH] arch/parisc/kernel/unaligned.c: Use time_* macros
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Cc: linux-kernel@vger.kernel.org, Kyle McMartin <kyle@mcmartin.ca>,
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	Andrew Morton <akpm@linux-foundation.org>
To: "S.?a??lar Onur" <caglar@pardus.org.tr>
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Hi,

On Mon, Mar 17, 2008 at 11:36:25AM +0200, S.?a??lar Onur wrote:

Sorry, I seem to be losing at charsets with your name. :(

> The functions time_before, time_before_eq, time_after, and time_after=
_eq are more robust for comparing jiffies against other values.
>=20
> So following patch implements usage of the time_after() macro, define=
d at linux/jiffies.h, which deals with wrapping correctly
>=20

I prefer the idea of using printk_ratelimit. I've committed a patch tha=
t
does this to git and credited you with pointing it out.

cheers, Kyle

> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: linux-parisc@vger.kernel.org
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: S.=C7a??lar Onur <caglar@pardus.org.tr>
> ---
>  arch/parisc/kernel/unaligned.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>=20
> diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unal=
igned.c
> index aebf3c1..19b8a79 100644
> --- a/arch/parisc/kernel/unaligned.c
> +++ b/arch/parisc/kernel/unaligned.c
> @@ -460,7 +460,7 @@ void handle_unaligned(struct pt_regs *regs)
>  			goto force_sigbus;
>  		}
> =20
> -		if (unaligned_count > 5 && jiffies - last_time > 5*HZ) {
> +		if (unaligned_count > 5 && time_after(jiffies, last_time + 5 * HZ)=
) {
>  			unaligned_count =3D 0;
>  			last_time =3D jiffies;
>  		}
> --=20
> 1.5.4.3
>=20
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Subject: Re: [git patches] parisc bug fixes for 2.6.25
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> I don't see this... what is the machine running? I'm concerned maybe one
> of the new syscalls is being used in glibc or something.

At a simpler level, pwck and grpck are also wierd.  For example,
grpck often says a user doesn't exist when it clearly does.  Tried
running grpck with strace but it dies:

...
open("/lib/libsepol.so.1", O_RDONLY)    = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0WL"..., 512) = 512
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 265584, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x414e8000
mmap(0x41527000, 8192, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3e000) = 0x41527000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40002000
mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40003000
munmap(0x404ea000, 96360)               = 0
brk(0)                                  = 0x21000
brk(0x42000)                            = 0x42000
open("/etc/selinux/config", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
upeek: ptrace(PTRACE_PEEKUSER,11233,4294967292,0): Input/output error
root@hiauly6:/etc#

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> upeek: ptrace(PTRACE_PEEKUSER,11233,4294967292,0): Input/output error
> root@hiauly6:/etc#

This reminds me of the off by one, comiclr, bug last summer.  There
seems to be two other places in syscall.S where we might have the same
bug.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > upeek: ptrace(PTRACE_PEEKUSER,11233,4294967292,0): Input/output error
> > root@hiauly6:/etc#
> 
> This reminds me of the off by one, comiclr, bug last summer.  There
> seems to be two other places in syscall.S where we might have the same
> bug.

The attached patch while probably correct doesn't resolve the problem.
grpck is broken with 2.6.25-rc5-01448-g96f1bb3.  It isn't with 2.6.22.19.
Somehow, the problem seems specific to 32-bit kernels.

The same strace error occurs on both systems, so it's a separate issue.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 69b6eeb..3f6eeef 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -310,7 +310,7 @@ tracesys_next:
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
 
-	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
+	comiclr,>>	__NR_Linux_syscalls, %r20, %r0
 	b,n	.Lsyscall_nosys
 
 	LDREGX  %r20(%r19), %r19
@@ -402,7 +402,7 @@ lws_start:
 #endif	
 
         /* Is the lws entry number valid? */
-	comiclr,>>=	__NR_lws_entries, %r20, %r0
+	comiclr,>>	__NR_lws_entries, %r20, %r0
 	b,n	lws_exit_nosys
 
 	/* WARNING: Trashing sr2 and sr3 */
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On Sat, Mar 15, 2008 at 07:21:15PM +0000, rubisher wrote:
...
>>> -               asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
>>> +               asm volatile("fdc %%r0(%0)" : : "r" (&pdir_ptr[7]));
>> NACK - keep it simple with the original proposed patch.
> Ok here it is:
> Signed-off-by: Joel Soete <soete dot joel at scarlet dot be>

Acked-by: Grant Grundler <grundler@parisc-linux.org>

Kyle,
please apply :)

thanks,
grant

> ---
>  drivers/parisc/ccio-dma.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> Index: b/drivers/parisc/ccio-dma.c
> ===================================================================
> --- a/drivers/parisc/ccio-dma.c 2008-03-12 08:49:20.000000000 +0000
> +++ b/drivers/parisc/ccio-dma.c 2008-03-15 19:19:52.000000000 +0000
> @@ -695,7 +695,7 @@
>                 ** Hopefully someone figures out how to patch (NOP) the
>                 ** FDC/SYNC out at boot time.
>                 */
> -               asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
> +               asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
>
>                 iovp     += IOVP_SIZE;
>                 byte_cnt -= IOVP_SIZE;
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On Sat, Mar 22, 2008 at 5:10 PM, Matthias Klose <doko@cs.tu-berlin.de> wrote:
> Carlos O'Donell writes:
>  > >   - gij/gcj shows bus errors on hppa (either 4.2 or 4.3).
>  >
>  > Has gij/gcj ever worked on hppa-linux?
>
>  at least the gij/gcj before adding support for generics (1.5) did
>  work.  Now that a working runtime is required for the compiler makes
>  things different. Please try to run a random HelloWorld program using
>  the interpreter.

I'm not at all interested in gij/gcj. Why do we require that all
languages be functional for a gcc release? This is a difficult goal to
meet.

As the hppa-linux libc-ports maintainer I *am* interested in seeing
the list of regressions you have and commenting on them.

Also note that the hppa-linux list is "linux-parisc@vger.kernel.org"

Cheers,
Carlos.
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Carlos O'Donell writes:
> On Sat, Mar 22, 2008 at 5:10 PM, Matthias Klose <doko@cs.tu-berlin.de> wrote:
> > Carlos O'Donell writes:
> >  > >   - gij/gcj shows bus errors on hppa (either 4.2 or 4.3).
> >  >
> >  > Has gij/gcj ever worked on hppa-linux?
> >
> >  at least the gij/gcj before adding support for generics (1.5) did
> >  work.  Now that a working runtime is required for the compiler makes
> >  things different. Please try to run a random HelloWorld program using
> >  the interpreter.
> 
> I'm not at all interested in gij/gcj. Why do we require that all
> languages be functional for a gcc release? This is a difficult goal to
> meet.

I'll let the release team answer this question. IMO we should require
a port to support some kind of java runtime.  Is there any chance to
get the IcedTea Zero port working for hppa, or get the hpux java
support be ported to OpenJDK?

> As the hppa-linux libc-ports maintainer I *am* interested in seeing
> the list of regressions you have and commenting on them.

Please wait for the feedback from Aurelian.

> Also note that the hppa-linux list is "linux-parisc@vger.kernel.org"

thanks for the hint.

  Matthias
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Subject: Can't find a register in R1_REGS while reloading asm.
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Dave,

I've switched over to gcc-4_3-branch to do some hppa-linux libc
testing. While the gcc testsuite looks OK, modulo the builtin-math
failures (and a completely failed libgomp testsuite, likely an
environment setup issue), I can no longer build glibc.

When compiling the first function which uses the atomic.h macro, I get
the following failure in reload:
~~~
../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:220: error:
can't find a register in class 'R1_REGS' while reloading 'asm
'
dcigettext.c:1106: error: can't find a register in class 'R1_REGS'
while reloading 'asm'
dcigettext.c:1168: error: can't find a register in class 'R1_REGS'
while reloading 'asm'
dcigettext.c:1198: error: can't find a register in class 'R1_REGS'
while reloading 'asm'
../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:220: error:
'asm' operand has impossible constraints
~~~

This is gcc/reload1.c (spill_failure) failing to find a spill for some
rtx that *needs* R1_REGS. AFAIK there is a small class of instructions
that use R1_REGS implicitly, I assume one of those is needing r1 and
can't get a use for it.

If reload was naive it could just spill/restore everything, but I
think it's trying too hard and failing.

Do you have any hints for debugging this? Will I have to turn this
macro into a function to avoid this sort of issue? I hate to take the
function call penalty.

Cheers,
Carlos.
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On Mon, Mar 24, 2008 at 8:28 AM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> Dave,
>
>  I've switched over to gcc-4_3-branch to do some hppa-linux libc
>  testing. While the gcc testsuite looks OK, modulo the builtin-math
>  failures (and a completely failed libgomp testsuite, likely an
>  environment setup issue), I can no longer build glibc.
>
>  When compiling the first function which uses the atomic.h macro, I get
>  the following failure in reload:
>  ~~~
>  ../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:220: error:
>  can't find a register in class 'R1_REGS' while reloading 'asm
>  '
>  dcigettext.c:1106: error: can't find a register in class 'R1_REGS'
>  while reloading 'asm'
>  dcigettext.c:1168: error: can't find a register in class 'R1_REGS'
>  while reloading 'asm'
>  dcigettext.c:1198: error: can't find a register in class 'R1_REGS'
>  while reloading 'asm'
>  ../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:220: error:
>  'asm' operand has impossible constraints
>  ~~~

I looked up how constrain_operands() works, and I realized that the
correct solution is probably this:

1) Remove "memory" from clobber.
2) Change the output constraint "=m" (*mem) to "+m" (*mem) to express
that the memory may be written to by the CAS operation.

This is a tighter constraint than before, but it is no longer
ambiguous. Previously we said we clobbered memory, but yet specified
some as read-only.

I was also worried about "*mem" as an output, and "mem" as a register
input. You need to treat these mem/pointer pairs with care.

This change to asm seems to have fixed the build failure. Yay.

Cheers,
Carlos.
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From - Thu Nov 08 21:02:09 2018
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Subject: Re: Can't find a register in R1_REGS while reloading asm.
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To: carlos@systemhalted.org (Carlos O'Donell)
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> I've switched over to gcc-4_3-branch to do some hppa-linux libc
> testing. While the gcc testsuite looks OK, modulo the builtin-math
> failures (and a completely failed libgomp testsuite, likely an
> environment setup issue), I can no longer build glibc.
> 
> When compiling the first function which uses the atomic.h macro, I get
> the following failure in reload:
> ~~~
> ../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:220: error:
> can't find a register in class 'R1_REGS' while reloading 'asm
> '
> dcigettext.c:1106: error: can't find a register in class 'R1_REGS'
> while reloading 'asm'
> dcigettext.c:1168: error: can't find a register in class 'R1_REGS'
> while reloading 'asm'
> dcigettext.c:1198: error: can't find a register in class 'R1_REGS'
> while reloading 'asm'
> ../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:220: error:
> 'asm' operand has impossible constraints
> ~~~
> 
> This is gcc/reload1.c (spill_failure) failing to find a spill for some
> rtx that *needs* R1_REGS. AFAIK there is a small class of instructions
> that use R1_REGS implicitly, I assume one of those is needing r1 and
> can't get a use for it.
> 
> If reload was naive it could just spill/restore everything, but I
> think it's trying too hard and failing.
> 
> Do you have any hints for debugging this? Will I have to turn this
> macro into a function to avoid this sort of issue? I hate to take the
> function call penalty.

This is GCC PR 35193.  This is really a gcse/reload issue.  At the
moment, I don't have a fix.

The fundamental issue is there's only one r1 register and its
needed for memory loads and stores.  The PA backend has always used
separate rtl for the addil insn.  This makes it possible for gcse
to eliminate duplicated addil insns.  However, it can't do this
if the two addil insns are separated by a call or an asm which uses
r1 (well it could if reload didn't pick r1 for the addil).

We never see this problem for calls.  The asm in this case is effectively
a call but it lacks some of the attribute of a call insn.

Reload gets in trouble when it picks r1.  If it had picked some
other register (ie., one that isn't clobbered by the asm), the ICE
wouldn't have occurred.  Older GCC versions do this but I was unable
to find any specific change that introduced the failure.  It seems
the problem was latent.

r1 is essentially last in the register allocation order.  This was
clearly done to prevent this situation.

Possibly, something could be done with costs.  This probably could be
fixed in the backend, but it would require some nasty post reload
splits.  However, I think the approach would be detrimental to overall
code.  So, I think it would be better to adjust gcse or reload.

Turning the macro into a function call would help, but this is a GCC
bug.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> This change to asm seems to have fixed the build failure. Yay.

Excellent!

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Mar 24, 2008 at 1:04 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>  The fundamental issue is there's only one r1 register and its
>  needed for memory loads and stores.  The PA backend has always used
>  separate rtl for the addil insn.  This makes it possible for gcse
>  to eliminate duplicated addil insns.  However, it can't do this
>  if the two addil insns are separated by a call or an asm which uses
>  r1 (well it could if reload didn't pick r1 for the addil).

It is certainly a difficult problem, and the only thing that appears
to trigger this is a function with a lot of register pressure,
followed by an asm with a *lot* of clobbers, and a fair number of
input/output operands.

It's hard to justify fixing this if only a couple of corner cases
trigger the bug, and even then it's a "fail-safe" situation.

Cheers,
Carlos.
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On Sat, Mar 22, 2008 at 6:10 PM, Aurelien Jarno <aurelien@aurel32.net> wrote:
>  I have tried to build the glibc with GCC 4.3 on hppa, and rpcgen
>  segfaults when it is used, so the build fails. I haven't start to
>  investigate the problem (I started by the architectures where the
>  problems were minor).

I switched from gcc-4_2-branch to gcc-4_3-branch and I see the loader
gets a SIGTRAP, not a SIGSEGV. I'll try to debug this.

Cheers,
Carlos.
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> 1) Remove "memory" from clobber.
> 2) Change the output constraint "=m" (*mem) to "+m" (*mem) to express
> that the memory may be written to by the CAS operation.
> 
> This is a tighter constraint than before, but it is no longer
> ambiguous. Previously we said we clobbered memory, but yet specified
> some as read-only.

"+m" indicates that the memory operand is both read and written.  While
I believe that changing from "=m" to "+m" is correct, it is not a all
clear to me why this fixed the ICE.  As shown in the PR, the gcse pass
eliminated several loads of the high portion of the address of *mem.
I don't think this would happen if the asm indicated that mem was
clobbered.  This would prevent gcse from optimising the address load.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Jesper Juhl <jesper.juhl@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] parisc floppy: kill the 'register' keyword from header
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When compilers became generally better at optimizing code than humans, the
register keyword became mostly useless. For the floppy driver it certainly
is since it's so slow compared to the rest of the system that optimizing
access to a single variable or two isn't going to make any real
difference
So let's just leave it to the compiler - it'll do a better job anyway.

This patch does away with a few register keywords in the parisc floppy 
driver.


Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
---

 floppy.h |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/asm-parisc/floppy.h b/include/asm-parisc/floppy.h
index 4ca69f5..2f0a371 100644
--- a/include/asm-parisc/floppy.h
+++ b/include/asm-parisc/floppy.h
@@ -64,7 +64,7 @@ static int doing_pdma=0;
 
 static void floppy_hardint(int irq, void *dev_id, struct pt_regs * regs)
 {
-	register unsigned char st;
+	unsigned char st;
 
 #undef TRACE_FLPY_INT
 
@@ -84,8 +84,8 @@ static void floppy_hardint(int irq, void *dev_id, struct pt_regs * regs)
 #endif
 
 	{
-		register int lcount;
-		register char *lptr = virtual_dma_addr;
+		int lcount;
+		char *lptr = virtual_dma_addr;
 
 		for (lcount = virtual_dma_count; lcount; lcount--) {
 			st = fd_inb(virtual_dma_port+4) & 0xa0 ;


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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: GCC 4.3 and PLABEL32 issues.
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Dave,

The following reduced testcase:

cat >> foo.c <<EOF
#include <stdio.h>
#include <stdlib.h>

int main (void) {
  printf ("&printf = %x\n", (unsigned long)&printf);
  if (((unsigned long) &printf) & 3)
    {
      printf ("printf is a PLABEL32\n");
    }
  return 0;
}
EOF

carlos@firin:~/fsrc/gcc-work$
/usr/local/tools/bin/hppa-linux-gcc-4.2.4 -o foo foo.c
carlos@firin:~/fsrc/gcc-work$ ./foo
&printf = 119ea
printf is a PLABEL32

carlos@firin:~/fsrc/gcc-work$
/usr/local/tools/bin/hppa-linux-gcc-4.3.1 -o foo foo.c
carlos@firin:~/fsrc/gcc-work$ ./foo
&printf = 119ea

GCC 4.3, even at -O0, reduces "((unsigned long) &printf) & 3)" to "0".

~~~ foo.c.003t.original ~~~
;; Function main (main)
;; enabled by -tree-original

{
  printf ((const char * restrict) (char *) "&printf = %x\n", (long
unsigned int) printf);
  if (0)
    {
      printf ((const char * restrict) (char *) "printf is a PLABEL32\n");
    }
  return 0;
}
~~~
If the if condition is reduced to "0" as early as 003t.original, does
that mean it's the C frontend fault?

This issue is breaks glibc's detection of PLABEL's during startup
relocation processing.

Cheers,
Carlos.
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> If the if condition is reduced to "0" as early as 003t.original, does
> that mean it's the C frontend fault?

Yes.  If I remember correctly, casting a pointer to an integer type
is implementation defined.

> This issue is breaks glibc's detection of PLABEL's during startup
> relocation processing.

This definitely needs a PR.  It should be marked as a regression.
This probably also breaks the unwind code in libjava as it has a
similar check.  There's also __canonicalize_funcptr_for_compare.

It's something of a puzzle as to why this didn't appear in testing.
It suggests we aren't testing the build libraries but installed libraries.

Dave
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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On Tue, Mar 25, 2008 at 11:20 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> > If the if condition is reduced to "0" as early as 003t.original, does
>  > that mean it's the C frontend fault?
>
>  Yes.  If I remember correctly, casting a pointer to an integer type
>  is implementation defined.

I mention this in the PR.

>  > This issue is breaks glibc's detection of PLABEL's during startup
>  > relocation processing.
>
>  This definitely needs a PR.  It should be marked as a regression.
>  This probably also breaks the unwind code in libjava as it has a
>  similar check.  There's also __canonicalize_funcptr_for_compare.
>
>  It's something of a puzzle as to why this didn't appear in testing.
>  It suggests we aren't testing the build libraries but installed libraries.

PR/35705 filed, and CC'd to you.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35705

Cheers,
Carlos.
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On Tue, Mar 25, 2008 at 11:20:00PM -0400, John David Anglin wrote:
> This definitely needs a PR.  It should be marked as a regression.
> This probably also breaks the unwind code in libjava as it has a
> similar check.  There's also __canonicalize_funcptr_for_compare.
> 
> It's something of a puzzle as to why this didn't appear in testing.
> It suggests we aren't testing the build libraries but installed libraries.

I thought Mozilla also used the low bits of pointers for special cases
... and the kernel even has macros to return 'either a pointer or an
error code' (PTR_ERR, ERR_PTR, IS_ERR).  Although the kernel probably
wouldn't trip this, as I can't think of any function which returns a
function-pointer-or-error (and besides the test isn't 'are the bottom
bits set', but 'if you cast this pointer back to an unsigned long, is it
greater than -4095'.

-- 
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From - Thu Nov 08 21:02:09 2018
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Tue, Mar 25, 2008 at 06:42:44PM -0400, Carlos O'Donell wrote:
> On Sat, Mar 22, 2008 at 6:10 PM, Aurelien Jarno <aurelien@aurel32.net> wrote:
> >  I have tried to build the glibc with GCC 4.3 on hppa, and rpcgen
> >  segfaults when it is used, so the build fails. I haven't start to
> >  investigate the problem (I started by the architectures where the
> >  problems were minor).
> 
> I switched from gcc-4_2-branch to gcc-4_3-branch and I see the loader
> gets a SIGTRAP, not a SIGSEGV. I'll try to debug this.


Another gcc problem report:

That past weekend I built the latest parisc-2.6-25-rc6 kernel from
Kyle's tree using gcc-4.1, gcc-4.2, and gcc-4.3. All three kernels
booted but the networking only worked for gcc-4.1 kernel.

When sending ICMP (ping) messages, the "ifconfig eth0" output on the
parisc machine was reporting RX and TX packets at the expected rate
(1 per second).  But the source host (omnibook 500 laptop) only rarely
saw the ICMP reply. Maybe 1 out of 30 or 50 ICMP.  My guess is the
IP layer is racing with DMA and the packet is mangled in some subtle way.
Both gcc-4.2 and gcc-4.3 showed the same symptom.

I just realized it's possible the 100BT switch is dropping the packets.
I'll try to capture a tcpdump from the omnibook 500 side using a
crossover cable tonight or tomorrow since without that, I don't see
how this can be debugged.

thanks,
grant
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On Wed, Mar 26, 2008 at 10:20:35AM -0600, Grant Grundler wrote:
> Another gcc problem report:
> 
> That past weekend I built the latest parisc-2.6-25-rc6 kernel from
> Kyle's tree using gcc-4.1, gcc-4.2, and gcc-4.3. All three kernels
> booted but the networking only worked for gcc-4.1 kernel.

Sorry, I just realized I didn't mention the gcc versions are whatever is
currently in "Debian testing" for parisc.

grant
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> I thought Mozilla also used the low bits of pointers for special cases

Effectively, all code that has to deal with the underlying details
of the function pointer implementation is affected.  This includes
unwind code, and code to dynamically load libraries and plugins.

> ... and the kernel even has macros to return 'either a pointer or an
> error code' (PTR_ERR, ERR_PTR, IS_ERR).  Although the kernel probably
> wouldn't trip this, as I can't think of any function which returns a
> function-pointer-or-error (and besides the test isn't 'are the bottom
> bits set', but 'if you cast this pointer back to an unsigned long, is it
> greater than -4095'.

The PLABEL bit is defined in the runtime and only affects the runtime.
I think the only time the kernel would need to care about this is for
signal handlers.  In the runtime, page 0 is reserved to catch invalid
pointer accesses.  I'm sure the kernel has to be aware of this.

Dave
-- 
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> On Wed, Mar 26, 2008 at 10:20:35AM -0600, Grant Grundler wrote:
> > Another gcc problem report:
> > 
> > That past weekend I built the latest parisc-2.6-25-rc6 kernel from
> > Kyle's tree using gcc-4.1, gcc-4.2, and gcc-4.3. All three kernels
> > booted but the networking only worked for gcc-4.1 kernel.
> 
> Sorry, I just realized I didn't mention the gcc versions are whatever is
> currently in "Debian testing" for parisc.

I would look carefully to see if the newer compilers generate warnings
that need fixing.

I've been using 4.1 for my recent builds.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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To: Grant Grundler <grundler@parisc-linux.org>
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On Wed, Mar 26, 2008 at 10:20:35AM -0600, Grant Grundler wrote:
> Another gcc problem report:
>=20
> That past weekend I built the latest parisc-2.6-25-rc6 kernel from
> Kyle's tree using gcc-4.1, gcc-4.2, and gcc-4.3. All three kernels
> booted but the networking only worked for gcc-4.1 kernel.

=46ollowup: gcc-42 is working too now and I'm not sure why.
I upgraded gcc-4.3 package from 4.3.0-rcX to 4.3.1 AND all of it's
dependencies as well.

I looked at gcc-43 build output to check warnings related to networking
as suggest by John David Anglin.

I ignored the couple of warnings in drivers/net/wireless/.

  CC [M]  drivers/net/fealnx.o
drivers/net/fealnx.c:896:2: warning: #warning Processor architecture un=
defined!
    No clue what this driver is for. Ignored.

  CC [M]  drivers/net/lasi_82596.o
drivers/net/lasi_82596.c: In function =E2=80=98lan_init_chip=E2=80=99:
drivers/net/lasi_82596.c:164: warning: format =E2=80=98%lx=E2=80=99 exp=
ects type =E2=80=98long unsigned int=E2=80=99, but argument 3 has type =
=E2=80=98resource_size_t=E2=80=99
drivers/net/lasi_82596.c:169: warning: format =E2=80=98%lx=E2=80=99 exp=
ects type =E2=80=98long unsigned int=E2=80=99, but argument 2 has type =
=E2=80=98resource_size_t=E2=80=99

	That's just printk format strings.

overshot and found this one in drivers/scsi/ interesting too:

drivers/scsi/initio.c:2585: warning: large integer implicitly truncated=
 to unsigned type

matching code is:
        cblk->senselen =3D cpu_to_le32(SENSE_SIZE);

grundler@j6k:~/parisc-2.6-gcc43$ fgrep senselen drivers/scsi/*.h
drivers/scsi/aha1740.h: u8 senselen;            /* Sense Length */
drivers/scsi/initio.h:  u8 senselen;    /*31 Sense Allocation Length */
drivers/scsi/megaraid.h:        u8 reqsenselen;

The code at first glance looks wrong here. Patch submitted to linux-scs=
i
and Alan Cox (who appears to have taken on this driver last year).


Nothing else in the drivers/net.
A bit more in net/ though:
  CC      net/sunrpc/svc.o
net/sunrpc/svc.c: In function =E2=80=98__svc_create_thread=E2=80=99:
net/sunrpc/svc.c:587: warning: =E2=80=98oldmask.bits[0u]=E2=80=99 may b=
e used uninitialized in this function

	Don't care since I'm not using rpc.
	This is probably a false positive anyway. I've found several.

And that was it. So no warnings that seem to be related to this network=
ing problem. It was worth checking though.


> I just realized it's possible the 100BT switch is dropping the packet=
s.
> I'll try to capture a tcpdump from the omnibook 500 side using a
> crossover cable tonight or tomorrow since without that, I don't see
> how this can be debugged.

Still need to try the cross-over cable.

grant
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To: Grant Grundler <grundler@parisc-linux.org>
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Hello Grant,

Grant Grundler wrote:
> On Wed, Mar 26, 2008 at 10:20:35AM -0600, Grant Grundler wrote:
>> Another gcc problem report:
>>
>> That past weekend I built the latest parisc-2.6-25-rc6 kernel from
>> Kyle's tree using gcc-4.1, gcc-4.2, and gcc-4.3. All three kernels
>> booted but the networking only worked for gcc-4.1 kernel.
>=20
> Followup: gcc-42 is working too now and I'm not sure why.
> I upgraded gcc-4.3 package from 4.3.0-rcX to 4.3.1 AND all of it's
> dependencies as well.
>=20
> I looked at gcc-43 build output to check warnings related to networki=
ng
> as suggest by John David Anglin.
>=20
> I ignored the couple of warnings in drivers/net/wireless/.
>=20
>   CC [M]  drivers/net/fealnx.o
> drivers/net/fealnx.c:896:2: warning: #warning Processor architecture =
undefined!
>     No clue what this driver is for. Ignored.
>=20
>   CC [M]  drivers/net/lasi_82596.o
> drivers/net/lasi_82596.c: In function =91lan_init_chip=92:
> drivers/net/lasi_82596.c:164: warning: format =91%lx=92 expects type =
=91long unsigned int=92, but argument 3 has type =91resource_size_t=92
> drivers/net/lasi_82596.c:169: warning: format =91%lx=92 expects type =
=91long unsigned int=92, but argument 2 has type =91resource_size_t=92
>=20
> 	That's just printk format strings.
>=20
That remember me that when I discover those new warnings with gcc-4.2 <=
http://article.gmane.org/gmane.linux.ports.parisc/70>
"discards qualifiers from pointer target type", they disapeared with gc=
c-4.3 with and btw this nic wasn't working anymore=20
(no ping no ssh, ...) even thought the kernel was booting. Unfortunatel=
y, I didn't have time to investigate in more details=20
(and it wasn't question to use gcc-4.3 as new default), sorry. If you c=
ompare your kernel build output with gcc-4.2 and 4.3=20
do you also notice this differences? (even thought it could be not rela=
ted to the issue I encountered, though).

Tx,
	r.


> overshot and found this one in drivers/scsi/ interesting too:
>=20
> drivers/scsi/initio.c:2585: warning: large integer implicitly truncat=
ed to unsigned type
>=20
> matching code is:
>         cblk->senselen =3D cpu_to_le32(SENSE_SIZE);
>=20
> grundler@j6k:~/parisc-2.6-gcc43$ fgrep senselen drivers/scsi/*.h
> drivers/scsi/aha1740.h: u8 senselen;            /* Sense Length */
> drivers/scsi/initio.h:  u8 senselen;    /*31 Sense Allocation Length =
*/
> drivers/scsi/megaraid.h:        u8 reqsenselen;
>=20
> The code at first glance looks wrong here. Patch submitted to linux-s=
csi
> and Alan Cox (who appears to have taken on this driver last year).
>=20
>=20
> Nothing else in the drivers/net.
> A bit more in net/ though:
>   CC      net/sunrpc/svc.o
> net/sunrpc/svc.c: In function =91__svc_create_thread=92:
> net/sunrpc/svc.c:587: warning: =91oldmask.bits[0u]=92 may be used uni=
nitialized in this function
>=20
> 	Don't care since I'm not using rpc.
> 	This is probably a false positive anyway. I've found several.
>=20
> And that was it. So no warnings that seem to be related to this netwo=
rking problem. It was worth checking though.
>=20
>=20
>> I just realized it's possible the 100BT switch is dropping the packe=
ts.
>> I'll try to capture a tcpdump from the omnibook 500 side using a
>> crossover cable tonight or tomorrow since without that, I don't see
>> how this can be debugged.
>=20
> Still need to try the cross-over cable.
>=20
> grant

Hello *,

Some time ago
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To: Kyle McMartin <kyle@mcmartin.ca>
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Hello Kyle,

As discussed by this thread <http://www.mail-archive.com/linux-parisc@vger.kernel.org/msg00058.html>
may I re-submit you this hunk:

a fixe of likely's macro usage:
Signed-off-by: Joel Soete <soete dot joel at scarlet dot be>
Index: linux-current/arch/parisc/lib/memcpy.c
===================================================================
--- linux-current.orig/arch/parisc/lib/memcpy.c    2008-01-05 13:57:26.000000000 +0000
+++ linux-current/arch/parisc/lib/memcpy.c    2008-01-05 13:58:01.000000000 +0000
@@ -405,7 +405,7 @@

  unaligned_copy:
      /* possibly we are aligned on a word, but not on a double... */
-    if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
+    if (likely((t1 & (sizeof(unsigned int) - 1)) == 0)) {
          t2 = src & (sizeof(unsigned int) - 1);

          if (unlikely(t2 != 0)) {
=== <> ===

Tia,
	r.
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On Sat, Mar 29, 2008 at 06:24:12PM +0000, rubisher wrote:
...
>> I looked at gcc-43 build output to check warnings related to networking
>> as suggest by John David Anglin.
...
> That remember me that when I discover those new warnings with gcc-4.2 
> <http://article.gmane.org/gmane.linux.ports.parisc/70>
> "discards qualifiers from pointer target type", they disapeared with 
> gcc-4.3

I saw that but don't know what it's about.

> and btw this nic wasn't working anymore (no ping no ssh, ...) 
> even thought the kernel was booting. Unfortunately, I didn't have time to 
> investigate in more details (and it wasn't question to use gcc-4.3 as new 
> default), sorry. If you compare your kernel build output with gcc-4.2 and 
> 4.3 do you also notice this differences?

By "build output" do you mean the binary (e.g. dot-o files) or log of what
was compiled and which warnings were emitted?

thanks
grant
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Grant Grundler wrote:
> On Sat, Mar 29, 2008 at 06:24:12PM +0000, rubisher wrote:
> ...
>>> I looked at gcc-43 build output to check warnings related to networking
>>> as suggest by John David Anglin.
> ...
>> That remember me that when I discover those new warnings with gcc-4.2 
>> <http://article.gmane.org/gmane.linux.ports.parisc/70>
>> "discards qualifiers from pointer target type", they disapeared with 
>> gcc-4.3
> 
> I saw that but don't know what it's about.
> 
The answer of Matthew seems to work ;-)

>> and btw this nic wasn't working anymore (no ping no ssh, ...) 
>> even thought the kernel was booting. Unfortunately, I didn't have time to 
>> investigate in more details (and it wasn't question to use gcc-4.3 as new 
>> default), sorry. If you compare your kernel build output with gcc-4.2 and 
>> 4.3 do you also notice this differences?
> 
> By "build output" do you mean the binary (e.g. dot-o files) or log of what
> was compiled and which warnings were emitted?
> 
Well, my understanding was that you compared a log file of a build with gcc-4.2 with the log file of the build of same src 
with gcc-4.3. That's what I did in fact but I was so busy this week that I couldn't post the results. Sorry, I will be off 
next week too, so will try to do when I will be back next Apr 14 ;-)

hth,
	r.

> thanks
> grant
> 
> 

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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: ls -l is broken
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I just noticed that ls -l is broken:

dave@mx3210:~/gnu/gcc/gcc$ ls -l ltsugar.m4
ls: ltsugar.m4: Operation not supported
-rw-r--r-- 1 dave dave 4122 Mar 16 16:50 ltsugar.m4

dave@mx3210:~/gnu/gcc/gcc$ dpkg -l coreutils libc6
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  coreutils      6.10-3         The GNU core utilities
ii  libc6          2.7-6          GNU C Library: Shared libraries
dave@mx3210:~/gnu/gcc/gcc$ uname -a
Linux mx3210 2.6.22.19 #4 SMP Tue Apr 1 19:24:18 EDT 2008 parisc64 GNU/Linux

coreutils 6.10 works on hpux.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Apr 06, 2008 at 06:28:12PM -0400, John David Anglin wrote:
> I just noticed that ls -l is broken:
> 
> dave@mx3210:~/gnu/gcc/gcc$ ls -l ltsugar.m4
> ls: ltsugar.m4: Operation not supported
> -rw-r--r-- 1 dave dave 4122 Mar 16 16:50 ltsugar.m4

If you strace it, what syscall returns -EOPNOTSUPP?

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> If you strace it, what syscall returns -EOPNOTSUPP?

strace is broken and quits before the relevant syscall.  Think I
mentioned this before is a different context.

Dave
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> If you strace it, what syscall returns -EOPNOTSUPP?

Just wondering if this has something to do with the following:

 (ENOTSUP and EOPNOTSUPP have the same value  on  Linux,
  but  according  to POSIX.1 these error values should be
  distinct.)

Doing a google on the subject, it seems that this is a known debian bug.

Dave
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: ls -l is broken
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On Sun, Apr 06, 2008 at 06:28:12PM -0400, John David Anglin wrote:
> I just noticed that ls -l is broken:
> 
> dave@mx3210:~/gnu/gcc/gcc$ ls -l ltsugar.m4
> ls: ltsugar.m4: Operation not supported
> -rw-r--r-- 1 dave dave 4122 Mar 16 16:50 ltsugar.m4
> 
> dave@mx3210:~/gnu/gcc/gcc$ dpkg -l coreutils libc6
> Desired=Unknown/Install/Remove/Purge/Hold
> | Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
> |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
> ||/ Name           Version        Description
> +++-==============-==============-============================================
> ii  coreutils      6.10-3         The GNU core utilities
> ii  libc6          2.7-6          GNU C Library: Shared libraries
> dave@mx3210:~/gnu/gcc/gcc$ uname -a
> Linux mx3210 2.6.22.19 #4 SMP Tue Apr 1 19:24:18 EDT 2008 parisc64 GNU/Linux
> 

I'm seeing this now as well... strace seems to barf on ptrace for some
reason (but is working fine otherwise... odd)
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From - Thu Nov 08 21:02:10 2018
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On Fri, Apr 11, 2008 at 01:41:23PM -0400, Kyle McMartin wrote:
> > ii  coreutils      6.10-3         The GNU core utilities
> > ii  libc6          2.7-6          GNU C Library: Shared libraries
> > dave@mx3210:~/gnu/gcc/gcc$ uname -a
> > Linux mx3210 2.6.22.19 #4 SMP Tue Apr 1 19:24:18 EDT 2008 parisc64 GNU/Linux
> 
> I'm seeing this now as well... strace seems to barf on ptrace for some
> reason (but is working fine otherwise... odd)
>

This must be a bug in the new glibc in sid... I'm seeing it on machines
with old kernels upgraded to sid (and, obviously, on machines with brand
new kernels.)

Either that or some glibc change is exposing a bug in our syscalls. I'll
try to puzzle out why ptrace is broken this weekend.

--Kyle 
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From - Thu Nov 08 21:02:10 2018
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On Sun, Apr 06, 2008 at 07:09:59PM -0400, John David Anglin wrote:
> > If you strace it, what syscall returns -EOPNOTSUPP?
> 
> strace is broken and quits before the relevant syscall.  Think I
> mentioned this before is a different context.
> 

Ok, I've fixed up ptrace. The failing syscall was lgetxattr, which, I
presume is failing because selinux is disabled, or something.

So, I assume that it's really just a warning.

regards, Kyle
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This is a fix for a bug introduced by tglx into 2.6.25 which we fixed
upstream.  However, he also got it backported to stable, so now 2.6.24.4
panics on boot on parisc.  The attached is the fix.

The upstream version of this patch is:

commit c20a84c91048c76c1379011c96b1a5cee5c7d9a0
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Sat Mar 1 10:25:52 2008 -0800

    [PARISC] futex: special case cmpxchg NULL in kernel space


James

---

From: Kyle McMartin <kyle@shortfin.cabal.ca>
Subject: [PARISC] futex: special case cmpxchg NULL in kernel space

Patch:

commit f9e77acd4060fefbb60a351cdb8d30fca27fe194
Author: Thomas Gleixner <tglx@linutronix.de>
Date:   Sun Feb 24 02:10:05 2008 +0000

    futex: runtime enable pi and robust functionality
 

which was backported to stable based on mainline Commit
a0c1e9073ef7428a14309cba010633a6cd6719ea added code to futex.c
to detect whether futex_atomic_cmpxchg_inatomic was implemented at run
time:

+       curval = cmpxchg_futex_value_locked(NULL, 0, 0);
+       if (curval == -EFAULT)
+               futex_cmpxchg_enabled = 1;

This is bogus on parisc, since page zero in kernel virtual space is the
gateway page for syscall entry, and should not be read from the kernel.
(That, and we really don't like the kernel faulting on its own address
 space...)

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

---
 include/asm-parisc/futex.h |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/include/asm-parisc/futex.h b/include/asm-parisc/futex.h
index dbee6e6..fdc6d05 100644
--- a/include/asm-parisc/futex.h
+++ b/include/asm-parisc/futex.h
@@ -56,6 +56,12 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 	int err = 0;
 	int uval;
 
+	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
+	 * our gateway page, and causes no end of trouble...
+	 */
+	if (segment_eq(KERNEL_DS, get_fs()) && !uaddr)
+		return -EFAULT;
+
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
 		return -EFAULT;
 
@@ -67,5 +73,5 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 	return uval;
 }
 
-#endif
-#endif
+#endif /*__KERNEL__*/
+#endif /*_ASM_PARISC_FUTEX_H*/
-- 
1.5.3.8



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From - Thu Nov 08 21:02:11 2018
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Subject: Re: Request for backport of [PARISC] futex: special case cmpxchg
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On Tue, Apr 15, 2008 at 10:45:11AM -0500, James Bottomley wrote:
> This is a fix for a bug introduced by tglx into 2.6.25 which we fixed
> upstream.  However, he also got it backported to stable, so now 2.6.24.4
> panics on boot on parisc.  The attached is the fix.
> 

The fix is fine, but it was misdiagnosed. The problem is actually that
swapper's *mm is unset. I switched it to if (!current->mm) in git,
but as usual I'm a slacker and haven't pushed it anywhere.

+1 for stable from me.
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Subject: Request for backport of [PARISC] pdc_console: fix bizarre panic on
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Lack of this causes boot panics with the stable kernel on all 2.6.24.x
kernels.  The fix is upstream as:

commit ef1afd4d79f0479960ff36bb5fe6ec6eba1ebff2
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Mon Feb 18 23:34:34 2008 -0800

    [PARISC] pdc_console: fix bizarre panic on boot

James

---

From: Kyle McMartin <kyle@shortfin.cabal.ca>
Subject: [PARISC] pdc_console: fix bizarre panic on boot

Commit:

commit 721fdf34167580ff98263c74cead8871d76936e6
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Thu Dec 6 09:32:15 2007 -0800

    [PARISC] print more than one character at a time for pdc console

introduced a subtle bug by accidentally removing the "static" from
iodc_dbuf. This resulted in, what appeared to be, a trap without
*current set to a task. Probably the result of a trap in real mode
while calling firmware.

Also do other misc clean ups. Since the only input from firmware is non
blocking, share iodc_dbuf between input and output, and spinlock the
only callers.

[jejb: fixed up rejections against the stable tree]

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

---
 arch/parisc/kernel/firmware.c |   27 +++++++++++++++++----------
 arch/parisc/kernel/pdc_cons.c |   19 +++++++++++++++++--
 include/asm-parisc/pdc.h      |    3 +--
 3 files changed, 35 insertions(+), 14 deletions(-)

diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 4ab83d5..7177a6c 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1080,6 +1080,9 @@ void pdc_io_reset_devices(void)
 	spin_unlock_irqrestore(&pdc_lock, flags);
 }
 
+/* locked by pdc_console_lock */
+static int __attribute__((aligned(8)))   iodc_retbuf[32];
+static char __attribute__((aligned(64))) iodc_dbuf[4096];
 
 /**
  * pdc_iodc_print - Console print using IODC.
@@ -1091,24 +1094,20 @@ void pdc_io_reset_devices(void)
  * Since the HP console requires CR+LF to perform a 'newline', we translate
  * "\n" to "\r\n".
  */
-int pdc_iodc_print(unsigned char *str, unsigned count)
+int pdc_iodc_print(const unsigned char *str, unsigned count)
 {
-	/* XXX Should we spinlock posx usage */
 	static int posx;        /* for simple TAB-Simulation... */
-	int __attribute__((aligned(8)))   iodc_retbuf[32];
-	char __attribute__((aligned(64))) iodc_dbuf[4096];
 	unsigned int i;
 	unsigned long flags;
 
-	memset(iodc_dbuf, 0, 4096);
-	for (i = 0; i < count && i < 2048;) {
+	for (i = 0; i < count && i < 79;) {
 		switch(str[i]) {
 		case '\n':
 			iodc_dbuf[i+0] = '\r';
 			iodc_dbuf[i+1] = '\n';
 			i += 2;
 			posx = 0;
-			break;
+			goto print;
 		case '\t':
 			while (posx & 7) {
 				iodc_dbuf[i] = ' ';
@@ -1124,6 +1123,16 @@ int pdc_iodc_print(unsigned char *str, unsigned count)
 		}
 	}
 
+	/* if we're at the end of line, and not already inserting a newline,
+	 * insert one anyway. iodc console doesn't claim to support >79 char
+	 * lines. don't account for this in the return value.
+	 */
+	if (i == 79 && iodc_dbuf[i-1] != '\n') {
+		iodc_dbuf[i+0] = '\r';
+		iodc_dbuf[i+1] = '\n';
+	}
+
+print:
         spin_lock_irqsave(&pdc_lock, flags);
         real32_call(PAGE0->mem_cons.iodc_io,
                     (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
@@ -1142,11 +1151,9 @@ int pdc_iodc_print(unsigned char *str, unsigned count)
  */
 int pdc_iodc_getc(void)
 {
-	unsigned long flags;
-        static int __attribute__((aligned(8)))   iodc_retbuf[32];
-        static char __attribute__((aligned(64))) iodc_dbuf[4096];
 	int ch;
 	int status;
+	unsigned long flags;
 
 	/* Bail if no console input device. */
 	if (!PAGE0->mem_kbd.iodc_io)
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 33b1f84..7f471a4 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -52,10 +52,18 @@
 #include <linux/tty.h>
 #include <asm/pdc.h>		/* for iodc_call() proto and friends */
 
+static spinlock_t pdc_console_lock = SPIN_LOCK_UNLOCKED;
 
 static void pdc_console_write(struct console *co, const char *s, unsigned count)
 {
-	pdc_iodc_print(s, count);
+	int i = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_console_lock, flags);
+	do {
+		i += pdc_iodc_print(s + i, count - i);
+	} while (i < count);
+	spin_unlock_irqrestore(&pdc_console_lock, flags);
 }
 
 void pdc_printf(const char *fmt, ...)
@@ -73,7 +81,14 @@ void pdc_printf(const char *fmt, ...)
 
 int pdc_console_poll_key(struct console *co)
 {
-	return pdc_iodc_getc();
+	int c;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_console_lock, flags);
+	c = pdc_iodc_getc();
+	spin_unlock_irqrestore(&pdc_console_lock, flags);
+
+	return c;
 }
 
 static int pdc_console_setup(struct console *co, char *options)
diff --git a/include/asm-parisc/pdc.h b/include/asm-parisc/pdc.h
index deda8c3..9eaa794 100644
--- a/include/asm-parisc/pdc.h
+++ b/include/asm-parisc/pdc.h
@@ -645,8 +645,7 @@ int pdc_soft_power_button(int sw_control);
 void pdc_io_reset(void);
 void pdc_io_reset_devices(void);
 int pdc_iodc_getc(void);
-int pdc_iodc_print(unsigned char *str, unsigned count);
-void pdc_printf(const char *fmt, ...);
+int pdc_iodc_print(const unsigned char *str, unsigned count);
 
 void pdc_emergency_unlock(void);
 int pdc_sti_call(unsigned long func, unsigned long flags,
-- 
1.5.3.8



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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: [PARISC] fix signal trampoline cache flushing
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The signal trampolines were accidently flushing the kernel I$ instead
of the users. Fix that up, and also add a missing user D$ flush
while we're at it.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
---
Sorry, I thought I submitted this for 2.6.25 ages ago.

 arch/parisc/kernel/signal.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 58fccc9..06213d1 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -534,7 +534,8 @@ insert_restart_trampoline(struct pt_regs *regs)
 		 * Flushing one cacheline is cheap.
 		 * "sync" on bigger (> 4 way) boxes is not.
 		 */
-		flush_icache_range(regs->gr[30], regs->gr[30] + 4);
+		flush_user_dcache_range(regs->gr[30], regs->gr[30] + 4);
+		flush_user_icache_range(regs->gr[30], regs->gr[30] + 4);
 
 		regs->gr[31] = regs->gr[30] + 8;
 		/* Preserve original r28. */
-- 
1.5.5

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On Tue, Apr 15, 2008 at 01:16:50AM -0400, Kyle McMartin wrote:
> On Sun, Apr 06, 2008 at 07:09:59PM -0400, John David Anglin wrote:
> > > If you strace it, what syscall returns -EOPNOTSUPP?
> > 
> > strace is broken and quits before the relevant syscall.  Think I
> > mentioned this before is a different context.
> > 
> 
> Ok, I've fixed up ptrace. The failing syscall was lgetxattr, which, I
> presume is failing because selinux is disabled, or something.
> 

Nevermind, it's failing because you don't have XATTRs enabled on ext3.
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From - Thu Nov 08 21:02:11 2018
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> Nevermind, it's failing because you don't have XATTRs enabled on ext3.

That sounds right.  I remember now that there's also an issue with
ls --full-time support on some file systems.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:02:11 2018
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On Wed, Apr 16, 2008 at 01:15:52PM -0400, John David Anglin wrote:
> > Nevermind, it's failing because you don't have XATTRs enabled on ext3.
> 
> That sounds right.  I remember now that there's also an issue with
> ls --full-time support on some file systems.
> 

The problem is, this seems to be causing failures on the buildds, which
probably need XATTRs enabled as well. I've added lamont to the CC list,
hopefully he can shed a bit of light on this.
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From - Thu Nov 08 21:02:11 2018
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From: Berthold Gunreben <b.gunreben@web.de>
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Subject: gcc 4.3 and kernel compiling
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Hi,

I compiled a kernel with gcc 4.3.1, but that kernel failed to boot the system. 
I got the following message on the serial console:

unwind_init: start = 0x103b1e90, end = 0x103d64f0, entries = 9318^M
Backtrace:^M
 [<10479e7c>] init+0x20/0x104^M
 [<104710f4>] kernel_init+0x210/0x3f4^M
^M
^M
Kernel Fault: Code=26 regs=efc401c0 (Addr=00000000)^M
^M
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI^M
PSW: 00000000000001000000000100001111 Not tainted^M
r00-03  0004010f 1015e000 10479e7c 00000000^M
r04-07  1048af48 00000000 103d76ec 104887f0^M
r08-11  00000000 00000000 103d7630 0000001f^M
r12-15  efc40088 1048b084 10376f78 10376f60^M
r16-19  3b9aca00 10376f48 10376f24 efc40000^M
r20-23  00000001 00000020 10479e5c 00000001^M
r24-27  00000000 00000000 00000000 103da010^M
r28-31  00000000 1034b490 efc401c0 104710f4^M
sr00-03  00000000 00000000 00000000 00000000^M
sr04-07  00000000 00000000 00000000 00000000^M
^M
IASQ: 00000000 00000000 IAOQ: 1015e46c 1015e470^M
 IIR: 0f401089    ISR: 00000000  IOR: 00000000^M
 CPU:        0   CR30: efc40000 CR31: 11111111^M
 ORIG_R28: 0000000d^M
 IAOQ[0]: cmpxchg_futex_value_locked+0x28/0x7c^M
 IAOQ[1]: cmpxchg_futex_value_locked+0x2c/0x7c^M
 RP(r2): init+0x20/0x104^M
Backtrace:^M
^M
Kernel panic - not syncing: Kernel Fault^M

Is there a  known issue maybe with barrier() that I should be aware of?

Thanks

Berthold
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From - Thu Nov 08 21:02:11 2018
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On Wed, Apr 16, 2008 at 10:22:30PM +0200, Berthold Gunreben wrote:
>  IAOQ[0]: cmpxchg_futex_value_locked+0x28/0x7c^M
>  IAOQ[1]: cmpxchg_futex_value_locked+0x2c/0x7c^M
>  RP(r2): init+0x20/0x104^M
> Backtrace:^M
> ^M
> Kernel panic - not syncing: Kernel Fault^M
> 
> Is there a  known issue maybe with barrier() that I should be aware of?
> 

update your kernel. this issue is independent of gcc version.
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This is a note to let you know that we have just queued up the patch titled

     Subject: PARISC futex: special case cmpxchg NULL in kernel space

to the 2.6.24-stable tree.  Its filename is

     parisc-futex-special-case-cmpxchg-null-in-kernel-space.patch

A git repo of this tree can be found at 
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary


>From stable-bounces@linux.kernel.org  Wed Apr 16 16:44:42 2008
From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: stable@kernel.org
Date: Tue, 15 Apr 2008 10:45:11 -0500
Message-Id: <1208274312.3131.11.camel@localhost.localdomain>
Cc: Parisc List <linux-parisc@vger.kernel.org>
Subject: PARISC futex: special case cmpxchg NULL in kernel space

From: Kyle McMartin <kyle@shortfin.cabal.ca>

upstream commit: c20a84c91048c76c1379011c96b1a5cee5c7d9a0

commit f9e77acd4060fefbb60a351cdb8d30fca27fe194
Author: Thomas Gleixner <tglx@linutronix.de>
Date:   Sun Feb 24 02:10:05 2008 +0000

    futex: runtime enable pi and robust functionality
 

which was backported to stable based on mainline Commit
a0c1e9073ef7428a14309cba010633a6cd6719ea added code to futex.c
to detect whether futex_atomic_cmpxchg_inatomic was implemented at run
time:

+       curval = cmpxchg_futex_value_locked(NULL, 0, 0);
+       if (curval == -EFAULT)
+               futex_cmpxchg_enabled = 1;

This is bogus on parisc, since page zero in kernel virtual space is the
gateway page for syscall entry, and should not be read from the kernel.
(That, and we really don't like the kernel faulting on its own address
 space...)

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
---
 include/asm-parisc/futex.h |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

--- a/include/asm-parisc/futex.h
+++ b/include/asm-parisc/futex.h
@@ -56,6 +56,12 @@ futex_atomic_cmpxchg_inatomic(int __user
 	int err = 0;
 	int uval;
 
+	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
+	 * our gateway page, and causes no end of trouble...
+	 */
+	if (segment_eq(KERNEL_DS, get_fs()) && !uaddr)
+		return -EFAULT;
+
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
 		return -EFAULT;
 
@@ -67,5 +73,5 @@ futex_atomic_cmpxchg_inatomic(int __user
 	return uval;
 }
 
-#endif
-#endif
+#endif /*__KERNEL__*/
+#endif /*_ASM_PARISC_FUTEX_H*/


Patches currently in stable-queue which might be from James.Bottomley@HansenPartnership.com are

queue-2.6.24/parisc-pdc_console-fix-bizarre-panic-on-boot.patch
queue-2.6.24/parisc-futex-special-case-cmpxchg-null-in-kernel-space.patch
--
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From - Thu Nov 08 21:02:11 2018
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From: chrisw@sous-sol.org
Newsgroups: gmane.linux.ports.parisc
Subject: patch parisc-pdc_console-fix-bizarre-panic-on-boot.patch queued to 2.6.24-stable tree
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This is a note to let you know that we have just queued up the patch titled

     Subject: PARISC pdc_console: fix bizarre panic on boot

to the 2.6.24-stable tree.  Its filename is

     parisc-pdc_console-fix-bizarre-panic-on-boot.patch

A git repo of this tree can be found at 
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary


>From stable-bounces@linux.kernel.org  Wed Apr 16 16:51:47 2008
From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: stable@kernel.org
Date: Tue, 15 Apr 2008 11:46:03 -0500
Message-Id: <1208277963.3131.18.camel@localhost.localdomain>
Cc: Parisc List <linux-parisc@vger.kernel.org>
Subject: PARISC pdc_console: fix bizarre panic on boot

From: Kyle McMartin <kyle@shortfin.cabal.ca>

upstream commit ef1afd4d79f0479960ff36bb5fe6ec6eba1ebff2

commit 721fdf34167580ff98263c74cead8871d76936e6
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Thu Dec 6 09:32:15 2007 -0800

    [PARISC] print more than one character at a time for pdc console

introduced a subtle bug by accidentally removing the "static" from
iodc_dbuf. This resulted in, what appeared to be, a trap without
*current set to a task. Probably the result of a trap in real mode
while calling firmware.

Also do other misc clean ups. Since the only input from firmware is non
blocking, share iodc_dbuf between input and output, and spinlock the
only callers.

[jejb: fixed up rejections against the stable tree]

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
---
 arch/parisc/kernel/firmware.c |   27 +++++++++++++++++----------
 arch/parisc/kernel/pdc_cons.c |   19 +++++++++++++++++--
 include/asm-parisc/pdc.h      |    3 +--
 3 files changed, 35 insertions(+), 14 deletions(-)

--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1080,6 +1080,9 @@ void pdc_io_reset_devices(void)
 	spin_unlock_irqrestore(&pdc_lock, flags);
 }
 
+/* locked by pdc_console_lock */
+static int __attribute__((aligned(8)))   iodc_retbuf[32];
+static char __attribute__((aligned(64))) iodc_dbuf[4096];
 
 /**
  * pdc_iodc_print - Console print using IODC.
@@ -1091,24 +1094,20 @@ void pdc_io_reset_devices(void)
  * Since the HP console requires CR+LF to perform a 'newline', we translate
  * "\n" to "\r\n".
  */
-int pdc_iodc_print(unsigned char *str, unsigned count)
+int pdc_iodc_print(const unsigned char *str, unsigned count)
 {
-	/* XXX Should we spinlock posx usage */
 	static int posx;        /* for simple TAB-Simulation... */
-	int __attribute__((aligned(8)))   iodc_retbuf[32];
-	char __attribute__((aligned(64))) iodc_dbuf[4096];
 	unsigned int i;
 	unsigned long flags;
 
-	memset(iodc_dbuf, 0, 4096);
-	for (i = 0; i < count && i < 2048;) {
+	for (i = 0; i < count && i < 79;) {
 		switch(str[i]) {
 		case '\n':
 			iodc_dbuf[i+0] = '\r';
 			iodc_dbuf[i+1] = '\n';
 			i += 2;
 			posx = 0;
-			break;
+			goto print;
 		case '\t':
 			while (posx & 7) {
 				iodc_dbuf[i] = ' ';
@@ -1124,6 +1123,16 @@ int pdc_iodc_print(unsigned char *str, u
 		}
 	}
 
+	/* if we're at the end of line, and not already inserting a newline,
+	 * insert one anyway. iodc console doesn't claim to support >79 char
+	 * lines. don't account for this in the return value.
+	 */
+	if (i == 79 && iodc_dbuf[i-1] != '\n') {
+		iodc_dbuf[i+0] = '\r';
+		iodc_dbuf[i+1] = '\n';
+	}
+
+print:
         spin_lock_irqsave(&pdc_lock, flags);
         real32_call(PAGE0->mem_cons.iodc_io,
                     (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
@@ -1142,11 +1151,9 @@ int pdc_iodc_print(unsigned char *str, u
  */
 int pdc_iodc_getc(void)
 {
-	unsigned long flags;
-        static int __attribute__((aligned(8)))   iodc_retbuf[32];
-        static char __attribute__((aligned(64))) iodc_dbuf[4096];
 	int ch;
 	int status;
+	unsigned long flags;
 
 	/* Bail if no console input device. */
 	if (!PAGE0->mem_kbd.iodc_io)
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -52,10 +52,18 @@
 #include <linux/tty.h>
 #include <asm/pdc.h>		/* for iodc_call() proto and friends */
 
+static spinlock_t pdc_console_lock = SPIN_LOCK_UNLOCKED;
 
 static void pdc_console_write(struct console *co, const char *s, unsigned count)
 {
-	pdc_iodc_print(s, count);
+	int i = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_console_lock, flags);
+	do {
+		i += pdc_iodc_print(s + i, count - i);
+	} while (i < count);
+	spin_unlock_irqrestore(&pdc_console_lock, flags);
 }
 
 void pdc_printf(const char *fmt, ...)
@@ -73,7 +81,14 @@ void pdc_printf(const char *fmt, ...)
 
 int pdc_console_poll_key(struct console *co)
 {
-	return pdc_iodc_getc();
+	int c;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_console_lock, flags);
+	c = pdc_iodc_getc();
+	spin_unlock_irqrestore(&pdc_console_lock, flags);
+
+	return c;
 }
 
 static int pdc_console_setup(struct console *co, char *options)
--- a/include/asm-parisc/pdc.h
+++ b/include/asm-parisc/pdc.h
@@ -645,8 +645,7 @@ int pdc_soft_power_button(int sw_control
 void pdc_io_reset(void);
 void pdc_io_reset_devices(void);
 int pdc_iodc_getc(void);
-int pdc_iodc_print(unsigned char *str, unsigned count);
-void pdc_printf(const char *fmt, ...);
+int pdc_iodc_print(const unsigned char *str, unsigned count);
 
 void pdc_emergency_unlock(void);
 int pdc_sti_call(unsigned long func, unsigned long flags,


Patches currently in stable-queue which might be from James.Bottomley@HansenPartnership.com are

queue-2.6.24/parisc-pdc_console-fix-bizarre-panic-on-boot.patch
queue-2.6.24/parisc-futex-special-case-cmpxchg-null-in-kernel-space.patch
--
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From - Thu Nov 08 21:02:11 2018
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From: Chris Wright <chrisw@sous-sol.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: PARISC pdc_console: fix bizarre panic on boot
Date: Wed, 16 Apr 2008 18:02:22 -0700
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Cc: Justin Forbes <jmforbes@linuxtx.org>,
	Zwane Mwaikambo <zwane@arm.linux.org.uk>,
	"Theodore Ts'o" <tytso@mit.edu>,
	Randy Dunlap <rdunlap@xenotime.net>,
	Dave Jones <davej@redhat.com>,
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	James Bottomley <James.Bottomley@HansenPartnership.com>,
	Parisc List <linux-parisc@vger.kernel.org>,
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To: linux-kernel@vger.kernel.org, stable@kernel.org
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-stable review patch.  If anyone has any objections, please let us know.
---------------------

From: Kyle McMartin <kyle@shortfin.cabal.ca>

upstream commit ef1afd4d79f0479960ff36bb5fe6ec6eba1ebff2

commit 721fdf34167580ff98263c74cead8871d76936e6
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Thu Dec 6 09:32:15 2007 -0800

    [PARISC] print more than one character at a time for pdc console

introduced a subtle bug by accidentally removing the "static" from
iodc_dbuf. This resulted in, what appeared to be, a trap without
*current set to a task. Probably the result of a trap in real mode
while calling firmware.

Also do other misc clean ups. Since the only input from firmware is non
blocking, share iodc_dbuf between input and output, and spinlock the
only callers.

[jejb: fixed up rejections against the stable tree]

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
---
 arch/parisc/kernel/firmware.c |   27 +++++++++++++++++----------
 arch/parisc/kernel/pdc_cons.c |   19 +++++++++++++++++--
 include/asm-parisc/pdc.h      |    3 +--
 3 files changed, 35 insertions(+), 14 deletions(-)

--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1080,6 +1080,9 @@ void pdc_io_reset_devices(void)
 	spin_unlock_irqrestore(&pdc_lock, flags);
 }
 
+/* locked by pdc_console_lock */
+static int __attribute__((aligned(8)))   iodc_retbuf[32];
+static char __attribute__((aligned(64))) iodc_dbuf[4096];
 
 /**
  * pdc_iodc_print - Console print using IODC.
@@ -1091,24 +1094,20 @@ void pdc_io_reset_devices(void)
  * Since the HP console requires CR+LF to perform a 'newline', we translate
  * "\n" to "\r\n".
  */
-int pdc_iodc_print(unsigned char *str, unsigned count)
+int pdc_iodc_print(const unsigned char *str, unsigned count)
 {
-	/* XXX Should we spinlock posx usage */
 	static int posx;        /* for simple TAB-Simulation... */
-	int __attribute__((aligned(8)))   iodc_retbuf[32];
-	char __attribute__((aligned(64))) iodc_dbuf[4096];
 	unsigned int i;
 	unsigned long flags;
 
-	memset(iodc_dbuf, 0, 4096);
-	for (i = 0; i < count && i < 2048;) {
+	for (i = 0; i < count && i < 79;) {
 		switch(str[i]) {
 		case '\n':
 			iodc_dbuf[i+0] = '\r';
 			iodc_dbuf[i+1] = '\n';
 			i += 2;
 			posx = 0;
-			break;
+			goto print;
 		case '\t':
 			while (posx & 7) {
 				iodc_dbuf[i] = ' ';
@@ -1124,6 +1123,16 @@ int pdc_iodc_print(unsigned char *str, u
 		}
 	}
 
+	/* if we're at the end of line, and not already inserting a newline,
+	 * insert one anyway. iodc console doesn't claim to support >79 char
+	 * lines. don't account for this in the return value.
+	 */
+	if (i == 79 && iodc_dbuf[i-1] != '\n') {
+		iodc_dbuf[i+0] = '\r';
+		iodc_dbuf[i+1] = '\n';
+	}
+
+print:
         spin_lock_irqsave(&pdc_lock, flags);
         real32_call(PAGE0->mem_cons.iodc_io,
                     (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
@@ -1142,11 +1151,9 @@ int pdc_iodc_print(unsigned char *str, u
  */
 int pdc_iodc_getc(void)
 {
-	unsigned long flags;
-        static int __attribute__((aligned(8)))   iodc_retbuf[32];
-        static char __attribute__((aligned(64))) iodc_dbuf[4096];
 	int ch;
 	int status;
+	unsigned long flags;
 
 	/* Bail if no console input device. */
 	if (!PAGE0->mem_kbd.iodc_io)
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -52,10 +52,18 @@
 #include <linux/tty.h>
 #include <asm/pdc.h>		/* for iodc_call() proto and friends */
 
+static spinlock_t pdc_console_lock = SPIN_LOCK_UNLOCKED;
 
 static void pdc_console_write(struct console *co, const char *s, unsigned count)
 {
-	pdc_iodc_print(s, count);
+	int i = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_console_lock, flags);
+	do {
+		i += pdc_iodc_print(s + i, count - i);
+	} while (i < count);
+	spin_unlock_irqrestore(&pdc_console_lock, flags);
 }
 
 void pdc_printf(const char *fmt, ...)
@@ -73,7 +81,14 @@ void pdc_printf(const char *fmt, ...)
 
 int pdc_console_poll_key(struct console *co)
 {
-	return pdc_iodc_getc();
+	int c;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_console_lock, flags);
+	c = pdc_iodc_getc();
+	spin_unlock_irqrestore(&pdc_console_lock, flags);
+
+	return c;
 }
 
 static int pdc_console_setup(struct console *co, char *options)
--- a/include/asm-parisc/pdc.h
+++ b/include/asm-parisc/pdc.h
@@ -645,8 +645,7 @@ int pdc_soft_power_button(int sw_control
 void pdc_io_reset(void);
 void pdc_io_reset_devices(void);
 int pdc_iodc_getc(void);
-int pdc_iodc_print(unsigned char *str, unsigned count);
-void pdc_printf(const char *fmt, ...);
+int pdc_iodc_print(const unsigned char *str, unsigned count);
 
 void pdc_emergency_unlock(void);
 int pdc_sti_call(unsigned long func, unsigned long flags,

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Subject: PARISC futex: special case cmpxchg NULL in kernel space
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-stable review patch.  If anyone has any objections, please let us know.
---------------------

From: Kyle McMartin <kyle@shortfin.cabal.ca>

upstream commit: c20a84c91048c76c1379011c96b1a5cee5c7d9a0

commit f9e77acd4060fefbb60a351cdb8d30fca27fe194
Author: Thomas Gleixner <tglx@linutronix.de>
Date:   Sun Feb 24 02:10:05 2008 +0000

    futex: runtime enable pi and robust functionality
 

which was backported to stable based on mainline Commit
a0c1e9073ef7428a14309cba010633a6cd6719ea added code to futex.c
to detect whether futex_atomic_cmpxchg_inatomic was implemented at run
time:

+       curval = cmpxchg_futex_value_locked(NULL, 0, 0);
+       if (curval == -EFAULT)
+               futex_cmpxchg_enabled = 1;

This is bogus on parisc, since page zero in kernel virtual space is the
gateway page for syscall entry, and should not be read from the kernel.
(That, and we really don't like the kernel faulting on its own address
 space...)

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
---
 include/asm-parisc/futex.h |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

--- a/include/asm-parisc/futex.h
+++ b/include/asm-parisc/futex.h
@@ -56,6 +56,12 @@ futex_atomic_cmpxchg_inatomic(int __user
 	int err = 0;
 	int uval;
 
+	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
+	 * our gateway page, and causes no end of trouble...
+	 */
+	if (segment_eq(KERNEL_DS, get_fs()) && !uaddr)
+		return -EFAULT;
+
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
 		return -EFAULT;
 
@@ -67,5 +73,5 @@ futex_atomic_cmpxchg_inatomic(int __user
 	return uval;
 }
 
-#endif
-#endif
+#endif /*__KERNEL__*/
+#endif /*_ASM_PARISC_FUTEX_H*/

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From - Thu Nov 08 21:02:11 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Fixed strace [ was Re: ls -l is broken ]
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On Sun, Apr 06, 2008 at 07:09:59PM -0400, John David Anglin wrote:
> > If you strace it, what syscall returns -EOPNOTSUPP?
> 
> strace is broken and quits before the relevant syscall.  Think I
> mentioned this before is a different context.
> 

Fixed & updated strace available at
http://people.debian.org/~kyle/strace/

cheers, Kyle
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The latest testing kernel release (2.5.24-5) doesn't boot on parisc
because of problems in the 2.6.24.4 stable kernel on which it is based.
I've put a BinNMU version (2.6.24-5+b1) that adds the two missing
patches to get this kernel booting again in:

http://www.parisc-linux.org/~jejb/parisc_debs/

For those tracking this, the two debian bugs are:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=476285
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=476292

James


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Hi team,

The following patch makes sure that ksoftirqd gets a nice level of 15
when HIL is enabled in the kernel. This is to workaround the fact that
ksoftirqd's load is very high when you have HIL devices attached to your
system.

There may be a better way to fix this. However, I think that the load
problem was already looked into long time ago and nothing could be done
about it, hence this workaround.


The attached patch has been tested already by a few Gentoo users.


Cheers,
  Guy

-- 
Guy Martin
Gentoo Linux - HPPA port lead

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Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>

Use a nice level of 15 when HIL support is compiled into the kernel.

diff -uNr linux-2.6.23-gentoo-r8.orig/kernel/softirq.c linux-2.6.23-gentoo-r8/kernel/softirq.c
--- linux-2.6.23-gentoo-r8.orig/kernel/softirq.c	2008-03-01 14:44:15.000000000 +0100
+++ linux-2.6.23-gentoo-r8/kernel/softirq.c	2008-03-01 14:50:18.000000000 +0100
@@ -597,6 +597,10 @@
 			printk("ksoftirqd for %i failed\n", hotcpu);
 			return NOTIFY_BAD;
 		}
+#ifdef CONFIG_HIL_MLC
+		// When using HIL, ksoftirqd takes too much CPU so we reduce the nice level
+		set_user_nice(p, 15);
+#endif /* CONFIG_HIL_MLC */
 		kthread_bind(p, hotcpu);
   		per_cpu(ksoftirqd, hotcpu) = p;
  		break;

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From: Domenico Andreoli <cavokz@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [REGRESSION] 2.6.25 on parisc - CPU 1 is stuck
Date: Mon, 21 Apr 2008 01:18:18 +0200
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Hi,

  as soon as I booted my dual PA8600 with 2.6.25 I got 1 CPU less. The
only other kernel I successfully used on that box is Debian's 2.6.22-3.

Debian never built 2.6.23 for parisc, 2.6.24 was still hanging last
time I checked it, 2.6.25 did not even build until recent -rc. So I am
not in the best position to bisect.

Here is the relevant dmesg.

Cheers,
Domenico

Linux version 2.6.25-02519-g3925e6f (cavok@ska) (gcc version 4.1.3 20080308 (prerelease) (Debian 4.1.2-21)) #4 SMP Sun Apr 20 04:53:48
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005d10 00000491 00000000 00000002 77b406fc 100000f0 00000008 000000b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x3
model 9000/785/J5600
Total Memory: 3840 MB
LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
SMP: bootstrap CPU ID is 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 969600
Kernel command line: root=/dev/sdb5 panic=60 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Memory: 3858944k/3932160k available (2916k kernel code, 72892k reserved, 1283k data, 240k init)
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x0000000130000000   (3840 MB)
      .init : 0x00000000405b0000 - 0x00000000405ec000   ( 240 kB)
      .data : 0x00000000403d9160 - 0x000000004051a000   (1283 kB)
      .text : 0x0000000040100000 - 0x00000000403d9160   (2916 kB)
SLUB: Genslabs=12, HWalign=64, Order=0-1, MinObjects=4, CPUs=2, Nodes=1
Security Framework initialized
Capability LSM initialized
Mount-cache hash table entries: 256
Brought up 1 CPUs
net_namespace: 1168 bytes
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfffffffffed34000 [10/2] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
7. Forte W+ 2w at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5d1, 0x00004 }
8. Forte W+ 2w at 0xfffffffffffa2000 [34] { 0, 0x0, 0x5d1, 0x00004 }
9. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09e, 0x00009 }
Enabling regular chassis codes support v0.05
Releasing cpu 1 now, hpa=fffffffffffa2000
SMP: CPU:1 is stuck.
CPU(s): 2 x PA8600 (PCX-W+) at 552.000000 MHz
Setting cache flush threshold to f84c0 (1 CPUs online)
SBA found Astro 2.1 at 0xfffffffffed00000
Elroy version TR2.1 (0x2) found at 0xfffffffffed30000
PCI: Enabled native mode for NS87415 (pif=0x8f)
Elroy version TR2.1 (0x2) found at 0xfffffffffed32000
Elroy version TR2.1 (0x2) found at 0xfffffffffed34000
Elroy version TR2.1 (0x2) found at 0xfffffffffed38000
Elroy version TR2.1 (0x2) found at 0xfffffffffed3c000
iosapic: hpa not registered for 0000:04:07.0
powersw: Soft power switch at 0xfffffff0f0400804 enabled.
...

-----[ Domenico Andreoli, aka cavok
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From - Thu Nov 08 21:02:12 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [REGRESSION] 2.6.25 on parisc - CPU 1 is stuck
Date: Sun, 20 Apr 2008 23:00:29 -0600
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On Mon, Apr 21, 2008 at 01:18:18AM +0200, Domenico Andreoli wrote:
> Hi,
> 
>   as soon as I booted my dual PA8600 with 2.6.25 I got 1 CPU less. The
> only other kernel I successfully used on that box is Debian's 2.6.22-3.

Sorry, I can't reproduce this on my j6000.

But there are some differences:
1) I'm using gcc 4.2
2) I'm testing 32-bit kernels.
3) j6k has 2GB of RAM (ie no RAM mapped above 4GB).
4) config file might be different in additional ways.

I'll kick off a 64-bit build and test that as well.


> Debian never built 2.6.23 for parisc, 2.6.24 was still hanging last
> time I checked it, 2.6.25 did not even build until recent -rc. So I am
> not in the best position to bisect.

Given 32-bit works, we might be able to figure this out w/o bisect.

...
> Linux version 2.6.25-02519-g3925e6f (cavok@ska) (gcc version 4.1.3 20080308 (prerelease) (Debian 4.1.2-21)) #4 SMP Sun Apr 20 04:53:48
...
> model 9000/785/J5600
> Total Memory: 3840 MB

Is this really 4GB with IO Hole?
The memory behind the IO Hole should be visible at a phys addr above 4GB.

...
> Found devices:
> 1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
> 2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
> 3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
> 4. Elroy PCI Bridge at 0xfffffffffed34000 [10/2] { 13, 0x0, 0x782, 0x0000a }
> 5. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
> 6. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
> 7. Forte W+ 2w at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5d1, 0x00004 }
> 8. Forte W+ 2w at 0xfffffffffffa2000 [34] { 0, 0x0, 0x5d1, 0x00004 }
> 9. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09e, 0x00009 }
> Enabling regular chassis codes support v0.05
> Releasing cpu 1 now, hpa=fffffffffffa2000
> SMP: CPU:1 is stuck.

BTW, I'm not sure this is a kernel problem. Do older kernels still work?

> CPU(s): 2 x PA8600 (PCX-W+) at 552.000000 MHz
> Setting cache flush threshold to f84c0 (1 CPUs online)
...

FWIW, here's the equivalent output for the kernel I just booted on j6k:

Linux version 2.6.25gcc42 (grundler@j6k) (gcc version 4.2.3 (Debian 4.2.3-3)) #1 SMP Sat Apr 19 16:56:57 PDT 2008
...
model 9000/785/J6000
Total Memory: 2048 MB
...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed34000 [10/2] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. Duet W+ at 0xfffa0000 [32] { 0, 0x0, 0x5d4, 0x00004 }
7. Duet W+ at 0xfffa2000 [34] { 0, 0x0, 0x5d4, 0x00004 }
8. Memory at 0xfed10200 [49] { 1, 0x0, 0x00a, 0x00009 }
Enabling regular chassis codes support v0.05
Releasing cpu 1 now, hpa=fffa2000
FP[1] enabled: Rev 1 Model 16
CPU(s): 2 x PA8600 (PCX-W+) at 552.000000 MHz
Whole cache flush 240696 cycles, flushing 3936256 bytes 584013 cycles
Setting cache flush threshold to 1140 (2 CPUs online)
...

hth,
grant
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From - Thu Nov 08 21:02:12 2018
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Subject: Re: [REGRESSION] 2.6.25 on parisc - CPU 1 is stuck
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> > Releasing cpu 1 now, hpa=fffffffffffa2000
> > SMP: CPU:1 is stuck.
> 
> BTW, I'm not sure this is a kernel problem. Do older kernels still work?

I'm not sure this is related but a few months ago I noticed that only
two of the four cpus in the rp3440 that I have were running.  I reenabled
the two cpus that were not running, but I had to do it a couple of more
times before the two cpus remained enabled across reboots.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Domenico Andreoli <cavokz@gmail.com>
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Subject: Re: [REGRESSION] 2.6.25 on parisc - CPU 1 is stuck
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On Sun, Apr 20, 2008 at 11:00:29PM -0600, Grant Grundler wrote:
> On Mon, Apr 21, 2008 at 01:18:18AM +0200, Domenico Andreoli wrote:
> > 
> >   as soon as I booted my dual PA8600 with 2.6.25 I got 1 CPU less. The
> > only other kernel I successfully used on that box is Debian's 2.6.22-3.
> 
> Sorry, I can't reproduce this on my j6000.
>
> But there are some differences:
> 1) I'm using gcc 4.2

how do you build with gcc 4.2? if i try with make -j2 CC=gcc-4.2 build
fails almost immediately (yes, I have package gcc-4.2).

> 2) I'm testing 32-bit kernels.

indeeed disabling 64 bit support brings the cpu back

> ...
> > model 9000/785/J5600
> > Total Memory: 3840 MB
> 
> Is this really 4GB with IO Hole?
> The memory behind the IO Hole should be visible at a phys addr above 4GB.

really don't know, please read the diff between the two boots. thank you.

--- dmesg.txt	2008-04-21 11:19:16.000000000 +0200
+++ dmesg2.txt	2008-04-21 15:27:46.000000000 +0200
@@ -1,6 +1,7 @@
-Linux version 2.6.22-3-parisc64-smp (Debian 2.6.22-6) (maks@debian.org) (gcc version 4.1.3 20071019 (prerelease) (Debian 4.1.2-17)) #2 SMP Mon Nov 12 21:04:20 CET 2007
+Linux version 2.6.25 (cavok@ska) (gcc version 4.1.3 20080308 (prerelease) (Debian 4.1.2-21)) #8 SMP Mon Apr 21 12:25:50 CES8
 FP[0] enabled: Rev 1 Model 16
 The 64-bit Kernel has started...
+console [ttyB0] enabled
 Initialized PDC Console for debugging.
 Determining PDC firmware type: System Map.
 model 00005d10 00000491 00000000 00000002 77b406fc 100000f0 00000008 000000b2 000000b2
@@ -8,41 +9,28 @@
 CPUID vers 17 rev 10 (0x0000022a)
 capabilities 0x3
 model 9000/785/J5600
-Memory Ranges:
- 0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 MB
- 1) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 MB
-Total Memory: 4096 MB
-initrd: 7fa75000-7ffee77e
-initrd: reserving 3fa75000-3ffee77e (mem_max 100000000)
-On node 0 totalpages: 983040
-  Normal zone: 13440 pages used for memmap
-  Normal zone: 0 pages reserved
-  Normal zone: 969600 pages, LIFO batch:31
-On node 1 totalpages: 65536
-  Normal zone: 896 pages used for memmap
-  Normal zone: 0 pages reserved
-  Normal zone: 64640 pages, LIFO batch:15
+Total Memory: 3840 MB
 LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
 SMP: bootstrap CPU ID is 0
-Built 2 zonelists.  Total pages: 1034240
-Kernel command line: root=/dev/sdb5 panic=60 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux.failsafe
+Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 969600
+Kernel command line: root=/dev/sdb5 panic=60 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
 PID hash table entries: 4096 (order: 12, 32768 bytes)
 Console: colour dummy device 160x64
 Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
 Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
-Memory: 4110336k/4194304k available (3041k kernel code, 83172k reserved, 1302k data, 296k init)
+Memory: 3858944k/3932160k available (2925k kernel code, 72904k reserved, 1278k data, 236k init)
 virtual kernel memory layout:
     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
-    memory  : 0x0000000040000000 - 0x0000001140000000   (69632 MB)
-      .init : 0x0000000040608000 - 0x0000000040652000   ( 296 kB)
-      .data : 0x00000000403f8500 - 0x000000004053e000   (1302 kB)
-      .text : 0x0000000040100000 - 0x00000000403f8500   (3041 kB)
-Calibrating delay loop... 1101.82 BogoMIPS (lpj=2203648)
-Security Framework v1.0.0 initialized
-SELinux:  Disabled at boot.
+    memory  : 0x0000000040000000 - 0x0000000130000000   (3840 MB)
+      .init : 0x00000000405b4000 - 0x00000000405ef000   ( 236 kB)
+      .data : 0x00000000403db720 - 0x000000004051b000   (1278 kB)
+      .text : 0x0000000040100000 - 0x00000000403db720   (2925 kB)
+SLUB: Genslabs=12, HWalign=64, Order=0-1, MinObjects=4, CPUs=2, Nodes=1
+Security Framework initialized
 Capability LSM initialized
 Mount-cache hash table entries: 256
 Brought up 1 CPUs
+net_namespace: 1008 bytes
 NET: Registered protocol family 16
 EISA bus registered
 Searching for devices...
@@ -58,11 +46,9 @@
 9. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09e, 0x00009 }
 Enabling regular chassis codes support v0.05
 Releasing cpu 1 now, hpa=fffffffffffa2000
-FP[1] enabled: Rev 1 Model 16
-migration_cost=4000
+SMP: CPU:1 is stuck.
 CPU(s): 2 x PA8600 (PCX-W+) at 552.000000 MHz
-Whole cache flush 177618 cycles, flushing 5578752 bytes 826963 cycles
-Setting cache flush threshold to 100000 (2 CPUs online)
+Setting cache flush threshold to fc880 (1 CPUs online)
 SBA found Astro 2.1 at 0xfffffffffed00000
 Elroy version TR2.1 (0x2) found at 0xfffffffffed30000
 PCI: Enabled native mode for NS87415 (pif=0x8f)

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On Mon, 2008-04-21 at 01:18 +0200, Domenico Andreoli wrote: 
> as soon as I booted my dual PA8600 with 2.6.25 I got 1 CPU less. The
> only other kernel I successfully used on that box is Debian's 2.6.22-3.
> 
> Debian never built 2.6.23 for parisc, 2.6.24 was still hanging last
> time I checked it, 2.6.25 did not even build until recent -rc. So I am
> not in the best position to bisect.

Try this one; it's a corrected version of debian 2.6.24-1 for parisc
systems:

http://www.parisc-linux.org/~jejb/parisc_debs/linux-image-2.6.24-1-parisc64-smp_2.6.24-5+b1_hppa.deb

It's known to boot correctly on B, A and rp3440 systems, but we don't
have a J system to try it out on.

> Here is the relevant dmesg.
> Releasing cpu 1 now, hpa=fffffffffffa2000
> SMP: CPU:1 is stuck.
> CPU(s): 2 x PA8600 (PCX-W+) at 552.000000 MHz
> Setting cache flush threshold to f84c0 (1 CPUs online)

Unfortunately that doesn't tell us anything other than the start IPI
failed for some reason.  One thing to try with the J series is a 32 bit
kernel just in case: they're the only SMP systems that will boot 32
bits, just in case you could try a 32 bit smp kernel.

As Dave Anglin said, it could be a config problem, although when I have
CPUs deconfigured by firmware, they usually don't show up in the
inventory.

James


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Subject: Re: [PARISC] fix signal trampoline cache flushing
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On Tue, Apr 15, 2008 at 3:36 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
>  diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
>  index 58fccc9..06213d1 100644
>  --- a/arch/parisc/kernel/signal.c
>  +++ b/arch/parisc/kernel/signal.c
>  @@ -534,7 +534,8 @@ insert_restart_trampoline(struct pt_regs *regs)
>                  * Flushing one cacheline is cheap.
>                  * "sync" on bigger (> 4 way) boxes is not.
>                  */
>  -               flush_icache_range(regs->gr[30], regs->gr[30] + 4);
>  +               flush_user_dcache_range(regs->gr[30], regs->gr[30] + 4);
>  +               flush_user_icache_range(regs->gr[30], regs->gr[30] + 4);

We also have a restartable syscall trampoline (I think this is unique
to PA), does that one also need fixing?

Cheers,
Carlos.
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On Mon, Apr 21, 2008 at 07:51:01AM -0700, Carlos O'Donell wrote:
> On Tue, Apr 15, 2008 at 3:36 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> >  diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
> >  index 58fccc9..06213d1 100644
> >  --- a/arch/parisc/kernel/signal.c
> >  +++ b/arch/parisc/kernel/signal.c
> >  @@ -534,7 +534,8 @@ insert_restart_trampoline(struct pt_regs *regs)
> >                  * Flushing one cacheline is cheap.
> >                  * "sync" on bigger (> 4 way) boxes is not.
> >                  */
> >  -               flush_icache_range(regs->gr[30], regs->gr[30] + 4);
> >  +               flush_user_dcache_range(regs->gr[30], regs->gr[30] + 4);
> >  +               flush_user_icache_range(regs->gr[30], regs->gr[30] + 4);
> 
> We also have a restartable syscall trampoline (I think this is unique
> to PA), does that one also need fixing?
> 

no.
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On 4/21/08, James Bottomley <James.Bottomley@hansenpartnership.com> wrote:
> On Mon, 2008-04-21 at 01:18 +0200, Domenico Andreoli wrote:
>  > as soon as I booted my dual PA8600 with 2.6.25 I got 1 CPU less. The
>  > only other kernel I successfully used on that box is Debian's 2.6.22-3.
>  >
>  > Debian never built 2.6.23 for parisc, 2.6.24 was still hanging last
>  > time I checked it, 2.6.25 did not even build until recent -rc. So I am
>  > not in the best position to bisect.
>
> Try this one; it's a corrected version of debian 2.6.24-1 for parisc
>  systems:
>
>  http://www.parisc-linux.org/~jejb/parisc_debs/linux-image-2.6.24-1-parisc64-smp_2.6.24-5+b1_hppa.deb
>
>  It's known to boot correctly on B, A and rp3440 systems, but we don't
>  have a J system to try it out on.

it does not work :( it stops here:

Linux version 2.6.24-1-parisc64-smp (Debian 2.6.24-5+b1)
(jejb@parisc-linux.org) (gcc version 4.1.3 20080114 (prerelease)
(Debian 4.1.2-19)) #2 SMP W8
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005d10 00000491 00000000 00000002 77b406fc 100000f0 00000008
000000b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x3
model 9000/785/J5600
Memory Ranges:
 0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 MB
 1) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 MB
Total Memory: 4096 MB
initrd: 7fa06000-7ffee68b
initrd: reserving 3fa06000-3ffee68b (mem_max 100000000)
LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
SMP: bootstrap CPU ID is 0
Built 2 zonelists in Zone order, mobility grouping on.  Total pages: 1034240
Kernel command line: root=/dev/sdb5 panic=60 HOME=/ console=ttyS0
TERM=vt102 palo_kernel=2/vmlinux
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Memory: 4109824k/4194304k available (3166k kernel code, 83792k
reserved, 1401k data, 296k init)
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x0000001140000000   (69632 MB)
      .init : 0x000000004063c000 - 0x0000000040686000   ( 296 kB)
      .data : 0x0000000040417890 - 0x0000000040576000   (1401 kB)
      .text : 0x0000000040100000 - 0x0000000040417890   (3166 kB)
Security Framework initialized
SELinux:  Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 256
Initializing cgroup subsys ns
Initializing cgroup subsys cpuacct
Brought up 1 CPUs
net_namespace: 120 bytes
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfffffffffed34000 [10/2] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
7. Forte W+ 2w at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5d1, 0x00004 }
8. Forte W+ 2w at 0xfffffffffffa2000 [34] { 0, 0x0, 0x5d1, 0x00004 }
9. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09e, 0x00009 }
Enabling regular chassis codes support v0.05
Releasing cpu 1 now, hpa=fffffffffffa2000

-----[ Domenico Andreoli, aka cavok
 --[ http://www.dandreoli.com/gpgkey.asc
   ---[ 3A0F 2F80 F79C 678A 8936  4FEE 0677 9033 A20E BC50
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From - Thu Nov 08 21:02:12 2018
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From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [RFC patch 5/9] PARISC remove -traditional
Date: Tue, 22 Apr 2008 13:24:09 -0400
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Subject: [RFC patch 5/9] Re: [PATCH] Stringify support commas
 > This is a no-no for those archs that still use -traditional.
 > > I dunno if this is a problem for you at the moment and the
 > > right fix is anyway to nuke -traditional.
 > > 
 > >     Sam

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Sam Ravnborg <sam@ravnborg.org>
CC: kyle@parisc-linux.org
CC: matthew@wil.cx
CC: grundler@parisc-linux.org
CC: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/Makefile |    3 ---
 1 file changed, 3 deletions(-)

Index: linux-2.6-lttng/arch/parisc/kernel/Makefile
===================================================================
--- linux-2.6-lttng.orig/arch/parisc/kernel/Makefile	2008-04-21 10:01:47.000000000 -0400
+++ linux-2.6-lttng/arch/parisc/kernel/Makefile	2008-04-21 10:01:56.000000000 -0400
@@ -4,9 +4,6 @@
 
 extra-y			:= init_task.o head.o vmlinux.lds
 
-AFLAGS_entry.o	:= -traditional
-AFLAGS_pacache.o := -traditional
-
 obj-y	     	:= cache.o pacache.o setup.o traps.o time.o irq.o \
 		   pa7300lc.o syscall.o entry.o sys_parisc.o firmware.o \
 		   ptrace.o hardware.o inventory.o drivers.o semaphore.o \

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

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Subject: Re: [RFC patch 5/9] PARISC remove -traditional
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On Tue, Apr 22, 2008 at 01:24:09PM -0400, Mathieu Desnoyers wrote:
> Subject: [RFC patch 5/9] Re: [PATCH] Stringify support commas
>  > This is a no-no for those archs that still use -traditional.
>  > > I dunno if this is a problem for you at the moment and the
>  > > right fix is anyway to nuke -traditional.
>  > > 
>  > >     Sam
> 
> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> CC: Sam Ravnborg <sam@ravnborg.org>
> CC: kyle@parisc-linux.org
> CC: matthew@wil.cx
> CC: grundler@parisc-linux.org
> CC: linux-parisc@vger.kernel.org

no. more work needs to be done to remove it. i have a patch already.

it would likely be smarter to just use a private stringify for the C
code for now.
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Subject: Re: [RFC patch 5/9] PARISC remove -traditional
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* Kyle McMartin (kyle@mcmartin.ca) wrote:
> On Tue, Apr 22, 2008 at 01:24:09PM -0400, Mathieu Desnoyers wrote:
> > Subject: [RFC patch 5/9] Re: [PATCH] Stringify support commas
> >  > This is a no-no for those archs that still use -traditional.
> >  > > I dunno if this is a problem for you at the moment and the
> >  > > right fix is anyway to nuke -traditional.
> >  > > 
> >  > >     Sam
> > 
> > Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> > CC: Sam Ravnborg <sam@ravnborg.org>
> > CC: kyle@parisc-linux.org
> > CC: matthew@wil.cx
> > CC: grundler@parisc-linux.org
> > CC: linux-parisc@vger.kernel.org
> 
> no. more work needs to be done to remove it. i have a patch already.
> 
> it would likely be smarter to just use a private stringify for the C
> code for now.

OK, this is what I wanted to know.

Thanks,

Mathieu

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [REGRESSION] 2.6.25 on parisc - CPU 1 is stuck
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On Mon, Apr 21, 2008 at 09:43:38AM -0500, James Bottomley wrote:
> On Mon, 2008-04-21 at 01:18 +0200, Domenico Andreoli wrote: 
> > as soon as I booted my dual PA8600 with 2.6.25 I got 1 CPU less. The
> > only other kernel I successfully used on that box is Debian's 2.6.22-3.
> > 
> > Debian never built 2.6.23 for parisc, 2.6.24 was still hanging last
> > time I checked it, 2.6.25 did not even build until recent -rc. So I am
> > not in the best position to bisect.
> 
> Try this one; it's a corrected version of debian 2.6.24-1 for parisc
> systems:
> 
> http://www.parisc-linux.org/~jejb/parisc_debs/linux-image-2.6.24-1-parisc64-smp_2.6.24-5+b1_hppa.deb

thanks! I can try that out tonight too.

> One thing to try with the J series is a 32 bit
> kernel just in case: they're the only SMP systems that will boot 32
> bits, just in case you could try a 32 bit smp kernel.

J-series are the only workstations that are SMP and boot 32-bit.
PA9000 K/D/R-class servers are SMP and can also boot 32-bit kernels.

> As Dave Anglin said, it could be a config problem, although when I have
> CPUs deconfigured by firmware, they usually don't show up in the
> inventory.

*nod* I don't expect CPUs to show up in inventory if they are
deconfigured in BCH. Maybe J-class firmware has this wrong? *shrug*
Something worth checking I guess.

thanks,
grant
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Subject: Re: [REGRESSION] 2.6.25 on parisc - CPU 1 is stuck
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On Tue, Apr 22, 2008 at 06:44:40PM -0600, Grant Grundler wrote:
> 
> *nod* I don't expect CPUs to show up in inventory if they are
> deconfigured in BCH. Maybe J-class firmware has this wrong? *shrug*
> Something worth checking I guess.
> 

i booted the kernel from my rp3440 on my j6000. i also get this cpu1 is
stuck message. putting a panic in the SMP C-code entrypoint is never
hit.

most oddly, putting a hpmc-causing insn sequence in the entry point
doesn't trigger either, so the cpu isn't coming out of the rendezvous.

even more oddly, the stwa insn in the bring up code looks fine.

--kyle

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On Mon, Apr 21, 2008 at 03:31:13PM +0200, Domenico Andreoli wrote:
> On Sun, Apr 20, 2008 at 11:00:29PM -0600, Grant Grundler wrote:
> > On Mon, Apr 21, 2008 at 01:18:18AM +0200, Domenico Andreoli wrote:
> > > 
> > >   as soon as I booted my dual PA8600 with 2.6.25 I got 1 CPU less. The
> > > only other kernel I successfully used on that box is Debian's 2.6.22-3.
> > 
> > Sorry, I can't reproduce this on my j6000.
> >
> > But there are some differences:
> > 1) I'm using gcc 4.2
> 
> how do you build with gcc 4.2? if i try with make -j2 CC=gcc-4.2 build
> fails almost immediately (yes, I have package gcc-4.2).

You probably need to change the .config so CONFIG_64BIT is not set.

_OR_ use the 64-bit compiler:
	make -j2 CC=hppa64-gnu-linux-gcc-4.2

> > 2) I'm testing 32-bit kernels.
> 
> indeeed disabling 64 bit support brings the cpu back

Ok. So it's not likely to be a HW problem.

> 
> > ...
> > > model 9000/785/J5600
> > > Total Memory: 3840 MB
> > 
> > Is this really 4GB with IO Hole?
> > The memory behind the IO Hole should be visible at a phys addr above 4GB.
> 
> really don't know, please read the diff between the two boots. thank you.

Sorry...that question was really targeting others on parisc-linux list.
The diff will some noise in it because 64-bit has to "F-extend" all
physical addresses to be 64-bit. (That's not quite the same as sign
extension because of some wonkiness in 32->64 bit phys address aliasing.)

thank,
grant

> --- dmesg.txt	2008-04-21 11:19:16.000000000 +0200
> +++ dmesg2.txt	2008-04-21 15:27:46.000000000 +0200
> @@ -1,6 +1,7 @@
> -Linux version 2.6.22-3-parisc64-smp (Debian 2.6.22-6) (maks@debian.org) (gcc version 4.1.3 20071019 (prerelease) (Debian 4.1.2-17)) #2 SMP Mon Nov 12 21:04:20 CET 2007
> +Linux version 2.6.25 (cavok@ska) (gcc version 4.1.3 20080308 (prerelease) (Debian 4.1.2-21)) #8 SMP Mon Apr 21 12:25:50 CES8
>  FP[0] enabled: Rev 1 Model 16
>  The 64-bit Kernel has started...
> +console [ttyB0] enabled
>  Initialized PDC Console for debugging.
>  Determining PDC firmware type: System Map.
>  model 00005d10 00000491 00000000 00000002 77b406fc 100000f0 00000008 000000b2 000000b2
> @@ -8,41 +9,28 @@
>  CPUID vers 17 rev 10 (0x0000022a)
>  capabilities 0x3
>  model 9000/785/J5600
> -Memory Ranges:
> - 0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 MB
> - 1) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 MB
> -Total Memory: 4096 MB
> -initrd: 7fa75000-7ffee77e
> -initrd: reserving 3fa75000-3ffee77e (mem_max 100000000)
> -On node 0 totalpages: 983040
> -  Normal zone: 13440 pages used for memmap
> -  Normal zone: 0 pages reserved
> -  Normal zone: 969600 pages, LIFO batch:31
> -On node 1 totalpages: 65536
> -  Normal zone: 896 pages used for memmap
> -  Normal zone: 0 pages reserved
> -  Normal zone: 64640 pages, LIFO batch:15
> +Total Memory: 3840 MB
>  LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
>  SMP: bootstrap CPU ID is 0
> -Built 2 zonelists.  Total pages: 1034240
> -Kernel command line: root=/dev/sdb5 panic=60 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux.failsafe
> +Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 969600
> +Kernel command line: root=/dev/sdb5 panic=60 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
>  PID hash table entries: 4096 (order: 12, 32768 bytes)
>  Console: colour dummy device 160x64
>  Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
>  Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
> -Memory: 4110336k/4194304k available (3041k kernel code, 83172k reserved, 1302k data, 296k init)
> +Memory: 3858944k/3932160k available (2925k kernel code, 72904k reserved, 1278k data, 236k init)
>  virtual kernel memory layout:
>      vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
> -    memory  : 0x0000000040000000 - 0x0000001140000000   (69632 MB)
> -      .init : 0x0000000040608000 - 0x0000000040652000   ( 296 kB)
> -      .data : 0x00000000403f8500 - 0x000000004053e000   (1302 kB)
> -      .text : 0x0000000040100000 - 0x00000000403f8500   (3041 kB)
> -Calibrating delay loop... 1101.82 BogoMIPS (lpj=2203648)
> -Security Framework v1.0.0 initialized
> -SELinux:  Disabled at boot.
> +    memory  : 0x0000000040000000 - 0x0000000130000000   (3840 MB)
> +      .init : 0x00000000405b4000 - 0x00000000405ef000   ( 236 kB)
> +      .data : 0x00000000403db720 - 0x000000004051b000   (1278 kB)
> +      .text : 0x0000000040100000 - 0x00000000403db720   (2925 kB)
> +SLUB: Genslabs=12, HWalign=64, Order=0-1, MinObjects=4, CPUs=2, Nodes=1
> +Security Framework initialized
>  Capability LSM initialized
>  Mount-cache hash table entries: 256
>  Brought up 1 CPUs
> +net_namespace: 1008 bytes
>  NET: Registered protocol family 16
>  EISA bus registered
>  Searching for devices...
> @@ -58,11 +46,9 @@
>  9. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09e, 0x00009 }
>  Enabling regular chassis codes support v0.05
>  Releasing cpu 1 now, hpa=fffffffffffa2000
> -FP[1] enabled: Rev 1 Model 16
> -migration_cost=4000
> +SMP: CPU:1 is stuck.
>  CPU(s): 2 x PA8600 (PCX-W+) at 552.000000 MHz
> -Whole cache flush 177618 cycles, flushing 5578752 bytes 826963 cycles
> -Setting cache flush threshold to 100000 (2 CPUs online)
> +Setting cache flush threshold to fc880 (1 CPUs online)
>  SBA found Astro 2.1 at 0xfffffffffed00000
>  Elroy version TR2.1 (0x2) found at 0xfffffffffed30000
>  PCI: Enabled native mode for NS87415 (pif=0x8f)
> 
> -----[ Domenico Andreoli, aka cavok
>  --[ http://www.dandreoli.com/gpgkey.asc
>    ---[ 3A0F 2F80 F79C 678A 8936  4FEE 0677 9033 A20E BC50
> --
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From: Geert Uytterhoeven <geert@linux-m68k.org>

Some input drivers do not check whether they're actually running on the
correct platform, causing multi-platform kernels to crash if they are not.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

---
 drivers/input/misc/hp_sdc_rtc.c  |    5 +++++
 drivers/input/serio/hp_sdc_mlc.c |    5 +++++
 2 files changed, 10 insertions(+)

--- a/drivers/input/misc/hp_sdc_rtc.c
+++ b/drivers/input/misc/hp_sdc_rtc.c
@@ -691,6 +691,11 @@ static int __init hp_sdc_rtc_init(void)
 {
 	int ret;
 
+#ifdef __mc68000__
+	if (!MACH_IS_HP300)
+		return -ENODEV;
+#endif
+
 	init_MUTEX(&i8042tregs);
 
 	if ((ret = hp_sdc_request_timer_irq(&hp_sdc_rtc_isr)))
--- a/drivers/input/serio/hp_sdc_mlc.c
+++ b/drivers/input/serio/hp_sdc_mlc.c
@@ -306,6 +306,11 @@ static int __init hp_sdc_mlc_init(void)
 {
 	hil_mlc *mlc = &hp_sdc_mlc;
 
+#ifdef __mc68000__
+	if (!MACH_IS_HP300)
+		return -ENODEV;
+#endif
+
 	printk(KERN_INFO PREFIX "Registering the System Domain Controller's HIL MLC.\n");
 
 	hp_sdc_mlc_priv.emtestmode = 0;

-- 
Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

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From: Helge Deller <deller@gmx.de>
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Subject: [PARISC][PATCH] fix trivial section name warnings
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This trivial patch fixes the following section warnings on PARISC:
> WARNING: vmlinux.o (.text.1): unexpected section name.
>The (.[number]+) following section name are ld generated and not expected. 
> Did you forget to use "ax"/"aw" in a .S file?
> Note that for example <linux/init.h> contains
> section definitions for use in .S files.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/hpux/gate.S b/arch/parisc/hpux/gate.S
index 38a1c1b..f0b18ce 100644
--- a/arch/parisc/hpux/gate.S
+++ b/arch/parisc/hpux/gate.S
@@ -13,9 +13,10 @@
 #include <asm/unistd.h>
 #include <asm/errno.h>
 #include <linux/linkage.h>
+#include <linux/init.h>
 
 	.level	LEVEL
-	.text
+	__HEAD
 
 	.import hpux_call_table
 	.import hpux_syscall_exit,code
diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..ccd3a50 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -28,9 +28,10 @@
 #include <asm/assembly.h>
 #include <asm/signal.h>
 #include <linux/linkage.h>
+#include <linux/init.h>
 
 	.level	LEVEL
-	.text
+	__HEAD
 
 	/* These should probably go in a header file somewhere.
 	 * They are duplicated in kernel/wrappers.S
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 111d472..1a3935e 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -38,6 +38,7 @@
 #include <asm/thread_info.h>
 
 #include <linux/linkage.h>
+#include <linux/init.h>
 
 #ifdef CONFIG_64BIT
 #define CMPIB           cmpib,*
@@ -629,7 +630,7 @@
 	 * the static part of the kernel address space.
 	 */
 
-	.text
+	__HEAD
 
 	.align	PAGE_SIZE
 
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index ec2482d..5680a2c 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -32,7 +32,7 @@ ENTRY(boot_args)
 	.word 0 /* arg3 */
 END(boot_args)
 
-	.section .text.head
+	__HEAD
 	.align	4
 	.import init_thread_union,data
 	.import fault_vector_20,code    /* IVA parisc 2.0 32 bit */
diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index 2cbf13b..068322e 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -47,6 +47,7 @@
 #include <asm/pdc.h>
 
 #include <linux/linkage.h>
+#include <linux/init.h>
 
 	/*
 	 * stack for os_hpmc, the HPMC handler.
@@ -76,7 +77,7 @@ ENTRY(hpmc_pim_data)
 	.block HPMC_PIM_DATA_SIZE
 END(hpmc_pim_data)
 
-	.text
+	__HEAD
 
 	.import intr_save, code
 ENTRY(os_hpmc)
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 5901092..7e4a339 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -37,8 +37,9 @@
 #include <asm/pgtable.h>
 #include <asm/cache.h>
 #include <linux/linkage.h>
+#include <linux/init.h>
 
-	.text
+	__HEAD
 	.align	128
 
 ENTRY(flush_tlb_all_local)
diff --git a/arch/parisc/kernel/perf_asm.S b/arch/parisc/kernel/perf_asm.S
index 43874ca..b2a9d05 100644
--- a/arch/parisc/kernel/perf_asm.S
+++ b/arch/parisc/kernel/perf_asm.S
@@ -41,7 +41,7 @@
 ; The coprocessor only needs to be enabled when
 ; starting/stopping the coprocessor with the pmenb/pmdis.
 ;
-	.text
+	__HEAD
 
 ENTRY(perf_intrigue_enable_perf_counters)
 	.proc
diff --git a/arch/parisc/kernel/real2.S b/arch/parisc/kernel/real2.S
index 7a92695..47fbdae 100644
--- a/arch/parisc/kernel/real2.S
+++ b/arch/parisc/kernel/real2.S
@@ -12,6 +12,7 @@
 #include <asm/assembly.h>
 
 #include <linux/linkage.h>
+#include <linux/init.h>
 
 	.section	.bss
 	.export real_stack
@@ -39,7 +40,7 @@ save_cr_end:
 /************************ 32-bit real-mode calls ***********************/
 /* This can be called in both narrow and wide kernels */
 
-	.text
+	__HEAD
 
 	/* unsigned long real32_call_asm(unsigned int *sp,
 	 *		unsigned int *arg0p,
@@ -113,7 +114,7 @@ ENDPROC(real32_call_asm)
 #  define PUSH_CR(r, where) mfctl r, %r1 ! STREG,ma %r1, REG_SZ(where)
 #  define POP_CR(r, where) LDREG,mb -REG_SZ(where), %r1 ! mtctl %r1, r
 
-	.text
+	__HEAD
 save_control_regs:
 	load32	PA(save_cr_space), %r28
 	PUSH_CR(%cr24, %r28)
@@ -145,7 +146,7 @@ restore_control_regs:
 /* rfi_virt2real() and rfi_real2virt() could perhaps be adapted for
  * more general-purpose use by the several places which need RFIs
  */
-	.text
+	__HEAD
 	.align 128
 rfi_virt2real:
 	/* switch to real mode... */
@@ -180,7 +181,7 @@ rfi_v2r_1:
 	bv	0(%r2)
 	nop
 
-	.text
+	__HEAD
 	.align 128
 rfi_real2virt:
 	rsm		PSW_SM_I,%r0
@@ -218,7 +219,7 @@ rfi_r2v_1:
 
 /************************ 64-bit real-mode calls ***********************/
 /* This is only usable in wide kernels right now and will probably stay so */
-	.text
+	__HEAD
 	/* unsigned long real64_call_asm(unsigned long *sp,
 	 *		unsigned long *arg0p,
 	 *		unsigned long fn)
@@ -276,7 +277,7 @@ ENDPROC(real64_call_asm)
 
 #endif
 
-	.text
+	__HEAD
 	/* http://lists.parisc-linux.org/hypermail/parisc-linux/10916.html
 	**	GCC 3.3 and later has a new function in libgcc.a for
 	**	comparing function pointers.
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 69b6eeb..f598e2c 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -17,6 +17,7 @@
 #include <asm/processor.h>
 
 #include <linux/linkage.h>
+#include <linux/init.h>
 
 	/* We fill the empty parts of the gateway page with
  	 * something that will kill the kernel or a
@@ -26,7 +27,7 @@
 
 	.level          LEVEL
 
-	.text
+	__HEAD
 
 	.import syscall_exit,code
 	.import syscall_exit_rfi,code
@@ -636,7 +637,7 @@ END(sys_call_table64)
 		All light-weight-syscall atomic operations 
 		will use this set of locks 
 	*/
-	.section .data
+	.section .data, "aw"
 	.align	PAGE_SIZE
 ENTRY(lws_lock_start)
 	/* lws locks */
diff --git a/arch/parisc/lib/fixup.S b/arch/parisc/lib/fixup.S
index d172d42..4821ad6 100644
--- a/arch/parisc/lib/fixup.S
+++ b/arch/parisc/lib/fixup.S
@@ -23,6 +23,7 @@
 #include <asm/assembly.h>
 #include <asm/errno.h>
 #include <linux/linkage.h>
+#include <linux/init.h>
 
 #ifdef CONFIG_SMP
 	.macro  get_fault_ip t1 t2
@@ -55,7 +56,7 @@
 
 	.level LEVEL
 
-	.text
+	__HEAD
 	.section .fixup, "ax"
 
 	/* get_user() fixups, store -EFAULT in r8, and 0 in r9 */
diff --git a/arch/parisc/lib/lusercopy.S b/arch/parisc/lib/lusercopy.S
index 1bd23cc..f61e8c3 100644
--- a/arch/parisc/lib/lusercopy.S
+++ b/arch/parisc/lib/lusercopy.S
@@ -33,12 +33,13 @@
  */
 
 
-	.text
-	
 #include <asm/assembly.h>
 #include <asm/errno.h>
 #include <linux/linkage.h>
+#include <linux/init.h>
 
+	__HEAD
+	
 	/*
 	 * get_sr gets the appropriate space value into
 	 * sr1 for kernel/user space access, depending
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From - Thu Nov 08 21:02:13 2018
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From: akpm@linux-foundation.org
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Subject: [patch 2/5] parisc: replace remaining __FUNCTION__ occurrences
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From: Harvey Harrison <harvey.harrison@gmail.com>

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/parisc/kernel/inventory.c |    2 +-
 arch/parisc/kernel/traps.c     |    2 +-
 arch/parisc/kernel/unaligned.c |    2 +-
 arch/parisc/lib/memcpy.c       |    2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff -puN arch/parisc/kernel/inventory.c~parisc-replace-remaining-__function__-occurences arch/parisc/kernel/inventory.c
--- a/arch/parisc/kernel/inventory.c~parisc-replace-remaining-__function__-occurences
+++ a/arch/parisc/kernel/inventory.c
@@ -499,7 +499,7 @@ add_system_map_addresses(struct parisc_d
 	dev->addr = kmalloc(num_addrs * sizeof(unsigned long), GFP_KERNEL);
 	if(!dev->addr) {
 		printk(KERN_ERR "%s %s(): memory allocation failure\n",
-		       __FILE__, __FUNCTION__);
+		       __FILE__, __func__);
 		return;
 	}
 
diff -puN arch/parisc/kernel/traps.c~parisc-replace-remaining-__function__-occurences arch/parisc/kernel/traps.c
--- a/arch/parisc/kernel/traps.c~parisc-replace-remaining-__function__-occurences
+++ a/arch/parisc/kernel/traps.c
@@ -275,7 +275,7 @@ KERN_CRIT "                     ||     |
 
 	/* Wot's wrong wif bein' racy? */
 	if (current->thread.flags & PARISC_KERNEL_DEATH) {
-		printk(KERN_CRIT "%s() recursion detected.\n", __FUNCTION__);
+		printk(KERN_CRIT "%s() recursion detected.\n", __func__);
 		local_irq_enable();
 		while (1);
 	}
diff -puN arch/parisc/kernel/unaligned.c~parisc-replace-remaining-__function__-occurences arch/parisc/kernel/unaligned.c
--- a/arch/parisc/kernel/unaligned.c~parisc-replace-remaining-__function__-occurences
+++ a/arch/parisc/kernel/unaligned.c
@@ -30,7 +30,7 @@
 /* #define DEBUG_UNALIGNED 1 */
 
 #ifdef DEBUG_UNALIGNED
-#define DPRINTF(fmt, args...) do { printk(KERN_DEBUG "%s:%d:%s ", __FILE__, __LINE__, __FUNCTION__ ); printk(KERN_DEBUG fmt, ##args ); } while (0)
+#define DPRINTF(fmt, args...) do { printk(KERN_DEBUG "%s:%d:%s ", __FILE__, __LINE__, __func__ ); printk(KERN_DEBUG fmt, ##args ); } while (0)
 #else
 #define DPRINTF(fmt, args...)
 #endif
diff -puN arch/parisc/lib/memcpy.c~parisc-replace-remaining-__function__-occurences arch/parisc/lib/memcpy.c
--- a/arch/parisc/lib/memcpy.c~parisc-replace-remaining-__function__-occurences
+++ a/arch/parisc/lib/memcpy.c
@@ -91,7 +91,7 @@ DECLARE_PER_CPU(struct exception_data, e
 #define THRESHOLD	16
 
 #ifdef DEBUG_MEMCPY
-#define DPRINTF(fmt, args...) do { printk(KERN_DEBUG "%s:%d:%s ", __FILE__, __LINE__, __FUNCTION__ ); printk(KERN_DEBUG fmt, ##args ); } while (0)
+#define DPRINTF(fmt, args...) do { printk(KERN_DEBUG "%s:%d:%s ", __FILE__, __LINE__, __func__ ); printk(KERN_DEBUG fmt, ##args ); } while (0)
 #else
 #define DPRINTF(fmt, args...)
 #endif
_
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From: akpm@linux-foundation.org
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Subject: [patch 4/5] parisc: remove redundant display of free swap space in show_mem()
Date: Fri, 02 May 2008 13:43:33 -0700
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From: Johannes Weiner <hannes@saeurebad.de>

show_mem() has no need to print the amount of free swap space manually because
show_free_areas() does this already and is called by the former.

The two outputs only differ in text formatting:

  printk("Free swap  = %lukB\n", ...);
  printk("Free swap:       %6ldkB\n", ...);

Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/parisc/mm/init.c |    2 --
 1 file changed, 2 deletions(-)

diff -puN arch/parisc/mm/init.c~parisc-remove-redundant-display-of-free-swap-space-in-show_mem arch/parisc/mm/init.c
--- a/arch/parisc/mm/init.c~parisc-remove-redundant-display-of-free-swap-space-in-show_mem
+++ a/arch/parisc/mm/init.c
@@ -555,8 +555,6 @@ void show_mem(void)
 
 	printk(KERN_INFO "Mem-info:\n");
 	show_free_areas();
-	printk(KERN_INFO "Free swap:	 %6ldkB\n",
-				nr_swap_pages<<(PAGE_SHIFT-10));
 #ifndef CONFIG_DISCONTIGMEM
 	i = max_mapnr;
 	while (i-- > 0) {
_
--
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From: akpm@linux-foundation.org
Newsgroups: gmane.linux.ports.parisc
Subject: [patch 3/5] drivers/parisc: replace remaining __FUNCTION__ occurrences
Date: Fri, 02 May 2008 13:43:32 -0700
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	harvey.harrison@gmail.com, grundler@parisc-linux.org,
	willy@debian.org
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From: Harvey Harrison <harvey.harrison@gmail.com>

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/parisc/asp.c       |    2 -
 drivers/parisc/ccio-dma.c  |   36 +++++++++++++++---------------
 drivers/parisc/dino.c      |   14 +++++------
 drivers/parisc/gsc.c       |    4 +--
 drivers/parisc/lasi.c      |    2 -
 drivers/parisc/lba_pci.c   |   22 +++++++++---------
 drivers/parisc/led.c       |    2 -
 drivers/parisc/sba_iommu.c |   42 +++++++++++++++++------------------
 drivers/parisc/wax.c       |    2 -
 9 files changed, 63 insertions(+), 63 deletions(-)

diff -puN drivers/parisc/asp.c~drivers-parisc-replace-remaining-__function__-occurrences drivers/parisc/asp.c
--- a/drivers/parisc/asp.c~drivers-parisc-replace-remaining-__function__-occurrences
+++ a/drivers/parisc/asp.c
@@ -88,7 +88,7 @@ asp_init_chip(struct parisc_device *dev)
 	ret = -EBUSY;
 	dev->irq = gsc_claim_irq(&gsc_irq, ASP_GSC_IRQ);
 	if (dev->irq < 0) {
-		printk(KERN_ERR "%s(): cannot get GSC irq\n", __FUNCTION__);
+		printk(KERN_ERR "%s(): cannot get GSC irq\n", __func__);
 		goto out;
 	}
 
diff -puN drivers/parisc/ccio-dma.c~drivers-parisc-replace-remaining-__function__-occurrences drivers/parisc/ccio-dma.c
--- a/drivers/parisc/ccio-dma.c~drivers-parisc-replace-remaining-__function__-occurrences
+++ a/drivers/parisc/ccio-dma.c
@@ -359,7 +359,7 @@ ccio_alloc_range(struct ioc *ioc, struct
 	BUG_ON((pages_needed * IOVP_SIZE) > DMA_CHUNK_SIZE);
      
 	DBG_RES("%s() size: %d pages_needed %d\n", 
-		__FUNCTION__, size, pages_needed);
+		__func__, size, pages_needed);
 
 	/*
 	** "seek and ye shall find"...praying never hurts either...
@@ -395,16 +395,16 @@ ccio_alloc_range(struct ioc *ioc, struct
 #endif
 	} else {
 		panic("%s: %s() Too many pages to map. pages_needed: %u\n",
-		       __FILE__,  __FUNCTION__, pages_needed);
+		       __FILE__,  __func__, pages_needed);
 	}
 
 	panic("%s: %s() I/O MMU is out of mapping resources.\n", __FILE__,
-	      __FUNCTION__);
+	      __func__);
 	
 resource_found:
 	
 	DBG_RES("%s() res_idx %d res_hint: %d\n",
-		__FUNCTION__, res_idx, ioc->res_hint);
+		__func__, res_idx, ioc->res_hint);
 
 #ifdef CCIO_SEARCH_TIME
 	{
@@ -450,7 +450,7 @@ ccio_free_range(struct ioc *ioc, dma_add
 	BUG_ON(pages_mapped > BITS_PER_LONG);
 
 	DBG_RES("%s():  res_idx: %d pages_mapped %d\n", 
-		__FUNCTION__, res_idx, pages_mapped);
+		__func__, res_idx, pages_mapped);
 
 #ifdef CCIO_MAP_STATS
 	ioc->used_pages -= pages_mapped;
@@ -474,7 +474,7 @@ ccio_free_range(struct ioc *ioc, dma_add
 #endif
 	} else {
 		panic("%s:%s() Too many pages to unmap.\n", __FILE__,
-		      __FUNCTION__);
+		      __func__);
 	}
 }
 
@@ -775,7 +775,7 @@ ccio_map_single(struct device *dev, void
 	pdir_start = &(ioc->pdir_base[idx]);
 
 	DBG_RUN("%s() 0x%p -> 0x%lx size: %0x%x\n",
-		__FUNCTION__, addr, (long)iovp | offset, size);
+		__func__, addr, (long)iovp | offset, size);
 
 	/* If not cacheline aligned, force SAFE_DMA on the whole mess */
 	if((size % L1_CACHE_BYTES) || ((unsigned long)addr % L1_CACHE_BYTES))
@@ -820,7 +820,7 @@ ccio_unmap_single(struct device *dev, dm
 	ioc = GET_IOC(dev);
 
 	DBG_RUN("%s() iovp 0x%lx/%x\n",
-		__FUNCTION__, (long)iova, size);
+		__func__, (long)iova, size);
 
 	iova ^= offset;        /* clear offset bits */
 	size += offset;
@@ -922,7 +922,7 @@ ccio_map_sg(struct device *dev, struct s
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
 	
-	DBG_RUN_SG("%s() START %d entries\n", __FUNCTION__, nents);
+	DBG_RUN_SG("%s() START %d entries\n", __func__, nents);
 
 	/* Fast path single entry scatterlists. */
 	if (nents == 1) {
@@ -966,7 +966,7 @@ ccio_map_sg(struct device *dev, struct s
 
 	BUG_ON(coalesced != filled);
 
-	DBG_RUN_SG("%s() DONE %d mappings\n", __FUNCTION__, filled);
+	DBG_RUN_SG("%s() DONE %d mappings\n", __func__, filled);
 
 	for (i = 0; i < filled; i++)
 		current_len += sg_dma_len(sglist + i);
@@ -995,7 +995,7 @@ ccio_unmap_sg(struct device *dev, struct
 	ioc = GET_IOC(dev);
 
 	DBG_RUN_SG("%s() START %d entries,  %08lx,%x\n",
-		__FUNCTION__, nents, sg_virt_addr(sglist), sglist->length);
+		__func__, nents, sg_virt_addr(sglist), sglist->length);
 
 #ifdef CCIO_MAP_STATS
 	ioc->usg_calls++;
@@ -1011,7 +1011,7 @@ ccio_unmap_sg(struct device *dev, struct
 		++sglist;
 	}
 
-	DBG_RUN_SG("%s() DONE (nents %d)\n", __FUNCTION__, nents);
+	DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
 }
 
 static struct hppa_dma_ops ccio_ops = {
@@ -1225,7 +1225,7 @@ static int
 ccio_get_iotlb_size(struct parisc_device *dev)
 {
 	if (dev->spa_shift == 0) {
-		panic("%s() : Can't determine I/O TLB size.\n", __FUNCTION__);
+		panic("%s() : Can't determine I/O TLB size.\n", __func__);
 	}
 	return (1 << dev->spa_shift);
 }
@@ -1315,7 +1315,7 @@ ccio_ioc_init(struct ioc *ioc)
 	BUG_ON((1 << get_order(ioc->pdir_size)) != (ioc->pdir_size >> PAGE_SHIFT));
 
 	DBG_INIT("%s() hpa 0x%p mem %luMB IOV %dMB (%d bits)\n",
-			__FUNCTION__, ioc->ioc_regs,
+			__func__, ioc->ioc_regs,
 			(unsigned long) num_physpages >> (20 - PAGE_SHIFT),
 			iova_space_size>>20,
 			iov_order + PAGE_SHIFT);
@@ -1323,7 +1323,7 @@ ccio_ioc_init(struct ioc *ioc)
 	ioc->pdir_base = (u64 *)__get_free_pages(GFP_KERNEL, 
 						 get_order(ioc->pdir_size));
 	if(NULL == ioc->pdir_base) {
-		panic("%s() could not allocate I/O Page Table\n", __FUNCTION__);
+		panic("%s() could not allocate I/O Page Table\n", __func__);
 	}
 	memset(ioc->pdir_base, 0, ioc->pdir_size);
 
@@ -1332,12 +1332,12 @@ ccio_ioc_init(struct ioc *ioc)
 
 	/* resource map size dictated by pdir_size */
  	ioc->res_size = (ioc->pdir_size / sizeof(u64)) >> 3;
-	DBG_INIT("%s() res_size 0x%x\n", __FUNCTION__, ioc->res_size);
+	DBG_INIT("%s() res_size 0x%x\n", __func__, ioc->res_size);
 	
 	ioc->res_map = (u8 *)__get_free_pages(GFP_KERNEL, 
 					      get_order(ioc->res_size));
 	if(NULL == ioc->res_map) {
-		panic("%s() could not allocate resource map\n", __FUNCTION__);
+		panic("%s() could not allocate resource map\n", __func__);
 	}
 	memset(ioc->res_map, 0, ioc->res_size);
 
@@ -1409,7 +1409,7 @@ ccio_init_resource(struct resource *res,
 	result = insert_resource(&iomem_resource, res);
 	if (result < 0) {
 		printk(KERN_ERR "%s() failed to claim CCIO bus address space (%08lx,%08lx)\n", 
-	 		__FUNCTION__, res->start, res->end);
+	 		__func__, res->start, res->end);
 	}
 }
 
diff -puN drivers/parisc/dino.c~drivers-parisc-replace-remaining-__function__-occurrences drivers/parisc/dino.c
--- a/drivers/parisc/dino.c~drivers-parisc-replace-remaining-__function__-occurrences
+++ a/drivers/parisc/dino.c
@@ -180,7 +180,7 @@ static int dino_cfg_read(struct pci_bus 
 	void __iomem *base_addr = d->hba.base_addr;
 	unsigned long flags;
 
-	DBG("%s: %p, %d, %d, %d\n", __FUNCTION__, base_addr, devfn, where,
+	DBG("%s: %p, %d, %d, %d\n", __func__, base_addr, devfn, where,
 									size);
 	spin_lock_irqsave(&d->dinosaur_pen, flags);
 
@@ -215,7 +215,7 @@ static int dino_cfg_write(struct pci_bus
 	void __iomem *base_addr = d->hba.base_addr;
 	unsigned long flags;
 
-	DBG("%s: %p, %d, %d, %d\n", __FUNCTION__, base_addr, devfn, where,
+	DBG("%s: %p, %d, %d, %d\n", __func__, base_addr, devfn, where,
 									size);
 	spin_lock_irqsave(&d->dinosaur_pen, flags);
 
@@ -301,7 +301,7 @@ static void dino_disable_irq(unsigned in
 	struct dino_device *dino_dev = irq_desc[irq].chip_data;
 	int local_irq = gsc_find_local_irq(irq, dino_dev->global_irq, DINO_LOCAL_IRQS);
 
-	DBG(KERN_WARNING "%s(0x%p, %d)\n", __FUNCTION__, dino_dev, irq);
+	DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, irq);
 
 	/* Clear the matching bit in the IMR register */
 	dino_dev->imr &= ~(DINO_MASK_IRQ(local_irq));
@@ -314,7 +314,7 @@ static void dino_enable_irq(unsigned int
 	int local_irq = gsc_find_local_irq(irq, dino_dev->global_irq, DINO_LOCAL_IRQS);
 	u32 tmp;
 
-	DBG(KERN_WARNING "%s(0x%p, %d)\n", __FUNCTION__, dino_dev, irq);
+	DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, irq);
 
 	/*
 	** clear pending IRQ bits
@@ -340,7 +340,7 @@ static void dino_enable_irq(unsigned int
 	tmp = __raw_readl(dino_dev->hba.base_addr+DINO_ILR);
 	if (tmp & DINO_MASK_IRQ(local_irq)) {
 		DBG(KERN_WARNING "%s(): IRQ asserted! (ILR 0x%x)\n",
-				__FUNCTION__, tmp);
+				__func__, tmp);
 		gsc_writel(dino_dev->txn_data, dino_dev->txn_addr);
 	}
 }
@@ -388,7 +388,7 @@ ilr_again:
 		int local_irq = __ffs(mask);
 		int irq = dino_dev->global_irq[local_irq];
 		DBG(KERN_DEBUG "%s(%d, %p) mask 0x%x\n",
-			__FUNCTION__, irq, intr_dev, mask);
+			__func__, irq, intr_dev, mask);
 		__do_IRQ(irq);
 		mask &= ~(1 << local_irq);
 	} while (mask);
@@ -566,7 +566,7 @@ dino_fixup_bus(struct pci_bus *bus)
 	int port_base = HBA_PORT_BASE(dino_dev->hba.hba_num);
 
 	DBG(KERN_WARNING "%s(0x%p) bus %d platform_data 0x%p\n",
-	    __FUNCTION__, bus, bus->secondary, 
+	    __func__, bus, bus->secondary,
 	    bus->bridge->platform_data);
 
 	/* Firmware doesn't set up card-mode dino, so we have to */
diff -puN drivers/parisc/gsc.c~drivers-parisc-replace-remaining-__function__-occurrences drivers/parisc/gsc.c
--- a/drivers/parisc/gsc.c~drivers-parisc-replace-remaining-__function__-occurrences
+++ a/drivers/parisc/gsc.c
@@ -112,7 +112,7 @@ static void gsc_asic_disable_irq(unsigne
 	int local_irq = gsc_find_local_irq(irq, irq_dev->global_irq, 32);
 	u32 imr;
 
-	DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __FUNCTION__, irq,
+	DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __func__, irq,
 			irq_dev->name, imr);
 
 	/* Disable the IRQ line by clearing the bit in the IMR */
@@ -127,7 +127,7 @@ static void gsc_asic_enable_irq(unsigned
 	int local_irq = gsc_find_local_irq(irq, irq_dev->global_irq, 32);
 	u32 imr;
 
-	DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __FUNCTION__, irq,
+	DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __func__, irq,
 			irq_dev->name, imr);
 
 	/* Enable the IRQ line by setting the bit in the IMR */
diff -puN drivers/parisc/lasi.c~drivers-parisc-replace-remaining-__function__-occurrences drivers/parisc/lasi.c
--- a/drivers/parisc/lasi.c~drivers-parisc-replace-remaining-__function__-occurrences
+++ a/drivers/parisc/lasi.c
@@ -193,7 +193,7 @@ lasi_init_chip(struct parisc_device *dev
 	dev->irq = gsc_alloc_irq(&gsc_irq);
 	if (dev->irq < 0) {
 		printk(KERN_ERR "%s(): cannot get GSC irq\n",
-				__FUNCTION__);
+				__func__);
 		kfree(lasi);
 		return -EBUSY;
 	}
diff -puN drivers/parisc/lba_pci.c~drivers-parisc-replace-remaining-__function__-occurrences drivers/parisc/lba_pci.c
--- a/drivers/parisc/lba_pci.c~drivers-parisc-replace-remaining-__function__-occurrences
+++ a/drivers/parisc/lba_pci.c
@@ -377,12 +377,12 @@ static int elroy_cfg_read(struct pci_bus
 		/* original - Generate config cycle on broken elroy
 		  with risk we will miss PCI bus errors. */
 		*data = lba_rd_cfg(d, tok, pos, size);
-		DBG_CFG("%s(%x+%2x) -> 0x%x (a)\n", __FUNCTION__, tok, pos, *data);
+		DBG_CFG("%s(%x+%2x) -> 0x%x (a)\n", __func__, tok, pos, *data);
 		return 0;
 	}
 
 	if (LBA_SKIP_PROBE(d) && !lba_device_present(bus->secondary, devfn, d)) {
-		DBG_CFG("%s(%x+%2x) -> -1 (b)\n", __FUNCTION__, tok, pos);
+		DBG_CFG("%s(%x+%2x) -> -1 (b)\n", __func__, tok, pos);
 		/* either don't want to look or know device isn't present. */
 		*data = ~0U;
 		return(0);
@@ -398,7 +398,7 @@ static int elroy_cfg_read(struct pci_bus
 	case 2: *data = READ_REG16(data_reg + (pos & 2)); break;
 	case 4: *data = READ_REG32(data_reg); break;
 	}
-	DBG_CFG("%s(%x+%2x) -> 0x%x (c)\n", __FUNCTION__, tok, pos, *data);
+	DBG_CFG("%s(%x+%2x) -> 0x%x (c)\n", __func__, tok, pos, *data);
 	return 0;
 }
 
@@ -441,16 +441,16 @@ static int elroy_cfg_write(struct pci_bu
 	if (!LBA_SKIP_PROBE(d)) {
 		/* Original Workaround */
 		lba_wr_cfg(d, tok, pos, (u32) data, size);
-		DBG_CFG("%s(%x+%2x) = 0x%x (a)\n", __FUNCTION__, tok, pos,data);
+		DBG_CFG("%s(%x+%2x) = 0x%x (a)\n", __func__, tok, pos,data);
 		return 0;
 	}
 
 	if (LBA_SKIP_PROBE(d) && (!lba_device_present(bus->secondary, devfn, d))) {
-		DBG_CFG("%s(%x+%2x) = 0x%x (b)\n", __FUNCTION__, tok, pos,data);
+		DBG_CFG("%s(%x+%2x) = 0x%x (b)\n", __func__, tok, pos,data);
 		return 1; /* New Workaround */
 	}
 
-	DBG_CFG("%s(%x+%2x) = 0x%x (c)\n", __FUNCTION__, tok, pos, data);
+	DBG_CFG("%s(%x+%2x) = 0x%x (c)\n", __func__, tok, pos, data);
 
 	/* Basic Algorithm */
 	LBA_CFG_ADDR_SETUP(d, tok | pos);
@@ -521,7 +521,7 @@ static int mercury_cfg_write(struct pci_
 	if ((pos > 255) || (devfn > 255))
 		return -EINVAL;
 
-	DBG_CFG("%s(%x+%2x) <- 0x%x (c)\n", __FUNCTION__, tok, pos, data);
+	DBG_CFG("%s(%x+%2x) <- 0x%x (c)\n", __func__, tok, pos, data);
 
 	LBA_CFG_TR4_ADDR_SETUP(d, tok | pos);
 	switch(size) {
@@ -890,7 +890,7 @@ LBA_PORT_IN(32, 0)
 #define LBA_PORT_OUT(size, mask) \
 static void lba_astro_out##size (struct pci_hba_data *d, u16 addr, u##size val) \
 { \
-	DBG_PORT("%s(0x%p, 0x%x, 0x%x)\n", __FUNCTION__, d, addr, val); \
+	DBG_PORT("%s(0x%p, 0x%x, 0x%x)\n", __func__, d, addr, val); \
 	WRITE_REG##size(val, astro_iop_base + addr); \
 	if (LBA_DEV(d)->hw_rev < 3) \
 		lba_t32 = READ_U32(d->base_addr + LBA_FUNC_ID); \
@@ -932,7 +932,7 @@ static struct pci_port_ops lba_astro_por
 static u##size lba_pat_in##size (struct pci_hba_data *l, u16 addr) \
 { \
 	u##size t; \
-	DBG_PORT("%s(0x%p, 0x%x) ->", __FUNCTION__, l, addr); \
+	DBG_PORT("%s(0x%p, 0x%x) ->", __func__, l, addr); \
 	t = READ_REG##size(PIOP_TO_GMMIO(LBA_DEV(l), addr)); \
 	DBG_PORT(" 0x%x\n", t); \
 	return (t); \
@@ -948,7 +948,7 @@ LBA_PORT_IN(32, 0)
 static void lba_pat_out##size (struct pci_hba_data *l, u16 addr, u##size val) \
 { \
 	void __iomem *where = PIOP_TO_GMMIO(LBA_DEV(l), addr); \
-	DBG_PORT("%s(0x%p, 0x%x, 0x%x)\n", __FUNCTION__, l, addr, val); \
+	DBG_PORT("%s(0x%p, 0x%x, 0x%x)\n", __func__, l, addr, val); \
 	WRITE_REG##size(val, where); \
 	/* flush the I/O down to the elroy at least */ \
 	lba_t32 = READ_U32(l->base_addr + LBA_FUNC_ID); \
@@ -1584,7 +1584,7 @@ void lba_set_iregs(struct parisc_device 
 	WARN_ON((ibase & 0x001fffff) != 0);
 	WARN_ON((imask & 0x001fffff) != 0);
 	
-	DBG("%s() ibase 0x%x imask 0x%x\n", __FUNCTION__, ibase, imask);
+	DBG("%s() ibase 0x%x imask 0x%x\n", __func__, ibase, imask);
 	WRITE_REG32( imask, base_addr + LBA_IMASK);
 	WRITE_REG32( ibase, base_addr + LBA_IBASE);
 	iounmap(base_addr);
diff -puN drivers/parisc/led.c~drivers-parisc-replace-remaining-__function__-occurrences drivers/parisc/led.c
--- a/drivers/parisc/led.c~drivers-parisc-replace-remaining-__function__-occurrences
+++ a/drivers/parisc/led.c
@@ -569,7 +569,7 @@ int __init register_led_driver(int model
 
 	default:
 		printk(KERN_ERR "%s: Wrong LCD/LED model %d !\n",
-		       __FUNCTION__, lcd_info.model);
+		       __func__, lcd_info.model);
 		return 1;
 	}
 	
diff -puN drivers/parisc/sba_iommu.c~drivers-parisc-replace-remaining-__function__-occurrences drivers/parisc/sba_iommu.c
--- a/drivers/parisc/sba_iommu.c~drivers-parisc-replace-remaining-__function__-occurrences
+++ a/drivers/parisc/sba_iommu.c
@@ -384,7 +384,7 @@ sba_search_bitmap(struct ioc *ioc, struc
 		}
 		mask = RESMAP_MASK(bits_wanted) >> bitshiftcnt;
 
-		DBG_RES("%s() o %ld %p", __FUNCTION__, o, res_ptr);
+		DBG_RES("%s() o %ld %p", __func__, o, res_ptr);
 		while(res_ptr < res_end)
 		{ 
 			DBG_RES("    %p %lx %lx\n", res_ptr, mask, *res_ptr);
@@ -454,7 +454,7 @@ sba_alloc_range(struct ioc *ioc, struct 
 #endif
 
 	DBG_RES("%s(%x) %d -> %lx hint %x/%x\n",
-		__FUNCTION__, size, pages_needed, pide,
+		__func__, size, pages_needed, pide,
 		(uint) ((unsigned long) ioc->res_hint - (unsigned long) ioc->res_map),
 		ioc->res_bitshift );
 
@@ -497,7 +497,7 @@ sba_free_range(struct ioc *ioc, dma_addr
 	unsigned long m = RESMAP_MASK(bits_not_wanted) >> (pide & (BITS_PER_LONG - 1));
 
 	DBG_RES("%s( ,%x,%x) %x/%lx %x %p %lx\n",
-		__FUNCTION__, (uint) iova, size,
+		__func__, (uint) iova, size,
 		bits_not_wanted, m, pide, res_ptr, *res_ptr);
 
 #ifdef SBA_COLLECT_STATS
@@ -740,7 +740,7 @@ sba_map_single(struct device *dev, void 
 	iovp = (dma_addr_t) pide << IOVP_SHIFT;
 
 	DBG_RUN("%s() 0x%p -> 0x%lx\n",
-		__FUNCTION__, addr, (long) iovp | offset);
+		__func__, addr, (long) iovp | offset);
 
 	pdir_start = &(ioc->pdir_base[pide]);
 
@@ -798,7 +798,7 @@ sba_unmap_single(struct device *dev, dma
 	unsigned long flags; 
 	dma_addr_t offset;
 
-	DBG_RUN("%s() iovp 0x%lx/%x\n", __FUNCTION__, (long) iova, size);
+	DBG_RUN("%s() iovp 0x%lx/%x\n", __func__, (long) iova, size);
 
 	ioc = GET_IOC(dev);
 	offset = iova & ~IOVP_MASK;
@@ -937,7 +937,7 @@ sba_map_sg(struct device *dev, struct sc
 	int coalesced, filled = 0;
 	unsigned long flags;
 
-	DBG_RUN_SG("%s() START %d entries\n", __FUNCTION__, nents);
+	DBG_RUN_SG("%s() START %d entries\n", __func__, nents);
 
 	ioc = GET_IOC(dev);
 
@@ -998,7 +998,7 @@ sba_map_sg(struct device *dev, struct sc
 
 	spin_unlock_irqrestore(&ioc->res_lock, flags);
 
-	DBG_RUN_SG("%s() DONE %d mappings\n", __FUNCTION__, filled);
+	DBG_RUN_SG("%s() DONE %d mappings\n", __func__, filled);
 
 	return filled;
 }
@@ -1023,7 +1023,7 @@ sba_unmap_sg(struct device *dev, struct 
 #endif
 
 	DBG_RUN_SG("%s() START %d entries,  %p,%x\n",
-		__FUNCTION__, nents, sg_virt_addr(sglist), sglist->length);
+		__func__, nents, sg_virt_addr(sglist), sglist->length);
 
 	ioc = GET_IOC(dev);
 
@@ -1047,7 +1047,7 @@ sba_unmap_sg(struct device *dev, struct 
 		++sglist;
 	}
 
-	DBG_RUN_SG("%s() DONE (nents %d)\n", __FUNCTION__,  nents);
+	DBG_RUN_SG("%s() DONE (nents %d)\n", __func__,  nents);
 
 #ifdef ASSERT_PDIR_SANITY
 	spin_lock_irqsave(&ioc->res_lock, flags);
@@ -1118,7 +1118,7 @@ sba_alloc_pdir(unsigned int pdir_size)
 	pdir_base = __get_free_pages(GFP_KERNEL, pdir_order);
 	if (NULL == (void *) pdir_base)	{
 		panic("%s() could not allocate I/O Page Table\n",
-			__FUNCTION__);
+			__func__);
 	}
 
 	/* If this is not PA8700 (PCX-W2)
@@ -1261,7 +1261,7 @@ sba_ioc_init_pluto(struct parisc_device 
 	ioc->pdir_size = (iova_space_size / IOVP_SIZE) * sizeof(u64);
 
 	DBG_INIT("%s() hpa 0x%p IOV %dMB (%d bits)\n",
-		__FUNCTION__, ioc->ioc_hpa, iova_space_size >> 20,
+		__func__, ioc->ioc_hpa, iova_space_size >> 20,
 		iov_order + PAGE_SHIFT);
 
 	ioc->pdir_base = (void *) __get_free_pages(GFP_KERNEL,
@@ -1272,7 +1272,7 @@ sba_ioc_init_pluto(struct parisc_device 
 	memset(ioc->pdir_base, 0, ioc->pdir_size);
 
 	DBG_INIT("%s() pdir %p size %x\n",
-			__FUNCTION__, ioc->pdir_base, ioc->pdir_size);
+			__func__, ioc->pdir_base, ioc->pdir_size);
 
 #ifdef SBA_HINT_SUPPORT
 	ioc->hint_shift_pdir = iov_order + PAGE_SHIFT;
@@ -1354,7 +1354,7 @@ sba_ioc_init_pluto(struct parisc_device 
 
 	if (agp_found && sba_reserve_agpgart) {
 		printk(KERN_INFO "%s: reserving %dMb of IOVA space for agpgart\n",
-		       __FUNCTION__, (iova_space_size/2) >> 20);
+		       __func__, (iova_space_size/2) >> 20);
 		ioc->pdir_size /= 2;
 		ioc->pdir_base[PDIR_INDEX(iova_space_size/2)] = SBA_AGPGART_COOKIE;
 	}
@@ -1406,7 +1406,7 @@ sba_ioc_init(struct parisc_device *sba, 
 	ioc->pdir_size = pdir_size = (iova_space_size/IOVP_SIZE) * sizeof(u64);
 
 	DBG_INIT("%s() hpa 0x%lx mem %ldMB IOV %dMB (%d bits)\n",
-			__FUNCTION__,
+			__func__,
 			ioc->ioc_hpa,
 			(unsigned long) num_physpages >> (20 - PAGE_SHIFT),
 			iova_space_size>>20,
@@ -1415,7 +1415,7 @@ sba_ioc_init(struct parisc_device *sba, 
 	ioc->pdir_base = sba_alloc_pdir(pdir_size);
 
 	DBG_INIT("%s() pdir %p size %x\n",
-			__FUNCTION__, ioc->pdir_base, pdir_size);
+			__func__, ioc->pdir_base, pdir_size);
 
 #ifdef SBA_HINT_SUPPORT
 	/* FIXME : DMA HINTs not used */
@@ -1443,7 +1443,7 @@ sba_ioc_init(struct parisc_device *sba, 
 #endif
 
 	DBG_INIT("%s() IOV base 0x%lx mask 0x%0lx\n",
-		__FUNCTION__, ioc->ibase, ioc->imask);
+		__func__, ioc->ibase, ioc->imask);
 
 	/*
 	** FIXME: Hint registers are programmed with default hint
@@ -1470,7 +1470,7 @@ sba_ioc_init(struct parisc_device *sba, 
 
 	ioc->ibase = 0; /* used by SBA_IOVA and related macros */	
 
-	DBG_INIT("%s() DONE\n", __FUNCTION__);
+	DBG_INIT("%s() DONE\n", __func__);
 }
 
 
@@ -1544,7 +1544,7 @@ printk("sba_hw_init(): mem_boot 0x%x 0x%
 	if (!IS_PLUTO(sba_dev->dev)) {
 		ioc_ctl = READ_REG(sba_dev->sba_hpa+IOC_CTRL);
 		DBG_INIT("%s() hpa 0x%lx ioc_ctl 0x%Lx ->",
-			__FUNCTION__, sba_dev->sba_hpa, ioc_ctl);
+			__func__, sba_dev->sba_hpa, ioc_ctl);
 		ioc_ctl &= ~(IOC_CTRL_RM | IOC_CTRL_NC | IOC_CTRL_CE);
 		ioc_ctl |= IOC_CTRL_DD | IOC_CTRL_D4 | IOC_CTRL_TC;
 			/* j6700 v1.6 firmware sets 0x294f */
@@ -1675,7 +1675,7 @@ sba_common_init(struct sba_device *sba_d
 
 		res_size >>= 3;  /* convert bit count to byte count */
 		DBG_INIT("%s() res_size 0x%x\n",
-			__FUNCTION__, res_size);
+			__func__, res_size);
 
 		sba_dev->ioc[i].res_size = res_size;
 		sba_dev->ioc[i].res_map = (char *) __get_free_pages(GFP_KERNEL, get_order(res_size));
@@ -1688,7 +1688,7 @@ sba_common_init(struct sba_device *sba_d
 		if (NULL == sba_dev->ioc[i].res_map)
 		{
 			panic("%s:%s() could not allocate resource map\n",
-			      __FILE__, __FUNCTION__ );
+			      __FILE__, __func__ );
 		}
 
 		memset(sba_dev->ioc[i].res_map, 0, res_size);
@@ -1725,7 +1725,7 @@ sba_common_init(struct sba_device *sba_d
 #endif
 
 		DBG_INIT("%s() %d res_map %x %p\n",
-			__FUNCTION__, i, res_size, sba_dev->ioc[i].res_map);
+			__func__, i, res_size, sba_dev->ioc[i].res_map);
 	}
 
 	spin_lock_init(&sba_dev->sba_lock);
diff -puN drivers/parisc/wax.c~drivers-parisc-replace-remaining-__function__-occurrences drivers/parisc/wax.c
--- a/drivers/parisc/wax.c~drivers-parisc-replace-remaining-__function__-occurrences
+++ a/drivers/parisc/wax.c
@@ -93,7 +93,7 @@ wax_init_chip(struct parisc_device *dev)
 	dev->irq = gsc_claim_irq(&gsc_irq, WAX_GSC_IRQ);
 	if (dev->irq < 0) {
 		printk(KERN_ERR "%s(): cannot get GSC irq\n",
-				__FUNCTION__);
+				__func__);
 		kfree(wax);
 		return -EBUSY;
 	}
_
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From - Thu Nov 08 21:02:13 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [patch 5/5] arch/parisc/kernel/unaligned.c: use time_* macros
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From: S.Caglar Onur <caglar@pardus.org.tr>

The functions time_before, time_before_eq, time_after, and time_after_eq are
more robust for comparing jiffies against other values.  

So use the time_after() macro, defined in linux/jiffies.h, which deals with
wrapping correctl

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: S.Caglar Onur <caglar@pardus.org.tr>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/parisc/kernel/unaligned.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff -puN arch/parisc/kernel/unaligned.c~arch-parisc-kernel-unalignedc-use-time_-macros arch/parisc/kernel/unaligned.c
--- a/arch/parisc/kernel/unaligned.c~arch-parisc-kernel-unalignedc-use-time_-macros
+++ a/arch/parisc/kernel/unaligned.c
@@ -460,7 +460,8 @@ void handle_unaligned(struct pt_regs *re
 			goto force_sigbus;
 		}
 
-		if (unaligned_count > 5 && jiffies - last_time > 5*HZ) {
+		if (unaligned_count > 5 &&
+				time_after(jiffies, last_time + 5 * HZ)) {
 			unaligned_count = 0;
 			last_time = jiffies;
 		}
_
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/asm-parisc/ioctls.h   |    4 ++++
 include/asm-parisc/termbits.h |    5 ++++-
 include/asm-parisc/termios.h  |    6 ++++--
 3 files changed, 12 insertions(+), 3 deletions(-)

diff -puN include/asm-parisc/ioctls.h~parisc-new-termios-definitions include/asm-parisc/ioctls.h
--- a/include/asm-parisc/ioctls.h~parisc-new-termios-definitions
+++ a/include/asm-parisc/ioctls.h
@@ -46,6 +46,10 @@
 #define TIOCSBRK	0x5427  /* BSD compatibility */
 #define TIOCCBRK	0x5428  /* BSD compatibility */
 #define TIOCGSID	_IOR('T', 20, int) /* Return the session ID of FD */
+#define TCGETS2		_IOR('T',0x2A, struct termios2)
+#define TCSETS2		_IOW('T',0x2B, struct termios2)
+#define TCSETSW2	_IOW('T',0x2C, struct termios2)
+#define TCSETSF2	_IOW('T',0x2D, struct termios2)
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
 
diff -puN include/asm-parisc/termbits.h~parisc-new-termios-definitions include/asm-parisc/termbits.h
--- a/include/asm-parisc/termbits.h~parisc-new-termios-definitions
+++ a/include/asm-parisc/termbits.h
@@ -141,6 +141,7 @@ struct ktermios {
 #define HUPCL   0002000
 #define CLOCAL  0004000
 #define CBAUDEX 0010000
+#define    BOTHER 0010000
 #define    B57600 0010001
 #define   B115200 0010002
 #define   B230400 0010003
@@ -156,10 +157,12 @@ struct ktermios {
 #define  B3000000 0010015
 #define  B3500000 0010016
 #define  B4000000 0010017
-#define CIBAUD    002003600000  /* input baud rate (not used) */
+#define CIBAUD    002003600000		/* input baud rate */
 #define CMSPAR    010000000000          /* mark or space (stick) parity */
 #define CRTSCTS   020000000000          /* flow control */
 
+#define IBSHIFT	16		/* Shift from CBAUD to CIBAUD */
+
 
 /* c_lflag bits */
 #define ISIG    0000001
diff -puN include/asm-parisc/termios.h~parisc-new-termios-definitions include/asm-parisc/termios.h
--- a/include/asm-parisc/termios.h~parisc-new-termios-definitions
+++ a/include/asm-parisc/termios.h
@@ -80,8 +80,10 @@ struct termio {
 	copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
 })
 
-#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
-#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
+#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
+#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
+#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
+#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
 
 #endif	/* __KERNEL__ */
 
_
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From: Helge Deller <deller@gmx.de>
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Subject: [PARISC][PATCH] Change cpu_data[] and cpu_devices[] to per_cpu variables
Date: Sat, 3 May 2008 00:02:10 +0200
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Change cpu_data[] and cpu_devices[] from array sized by NR_CPUS to per_cpu variables.

Signed-off-by: Helge Deller <deller@gmx.de>

 arch/parisc/Kconfig            |    8 +++-
 arch/parisc/kernel/irq.c       |   11 +++---
 arch/parisc/kernel/processor.c |   68 +++++++++++++++++++++--------------------
 arch/parisc/kernel/setup.c     |    2 -
 arch/parisc/kernel/smp.c       |   32 +++++++++----------
 arch/parisc/kernel/time.c      |    4 +-
 arch/parisc/kernel/topology.c  |    4 +-
 include/asm-parisc/processor.h |    4 +-
 8 files changed, 69 insertions(+), 64 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index bc7a19d..6dcd2a4 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -253,10 +253,14 @@ config HPUX
 	depends on !64BIT
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-32)"
-	range 2 32
+	int "Maximum number of CPUs (2-255)"
+	range 2 255
 	depends on SMP
 	default "32"
+	help
+	  This allows you to specify the maximum number of CPUs which this
+	  kernel will support.  The maximum supported value is 255 and the
+	  minimum value which makes sense is 2.
 
 endmenu
 
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 23ef950..3ee6b33 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -298,7 +298,7 @@ unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 	irq_desc[irq].affinity = cpumask_of_cpu(cpu);
 #endif
 
-	return cpu_data[cpu].txn_addr;
+	return per_cpu(cpu_data, cpu).txn_addr;
 }
 
 
@@ -309,8 +309,9 @@ unsigned long txn_alloc_addr(unsigned int virt_irq)
 	next_cpu++; /* assign to "next" CPU we want this bugger on */
 
 	/* validate entry */
-	while ((next_cpu < NR_CPUS) && (!cpu_data[next_cpu].txn_addr || 
-		!cpu_online(next_cpu)))
+	while ((next_cpu < NR_CPUS) &&
+		(!per_cpu(cpu_data, next_cpu).txn_addr ||
+		 !cpu_online(next_cpu)))
 		next_cpu++;
 
 	if (next_cpu >= NR_CPUS) 
@@ -359,7 +360,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 		printk(KERN_DEBUG "redirecting irq %d from CPU %d to %d\n",
 		       irq, smp_processor_id(), cpu);
 		gsc_writel(irq + CPU_IRQ_BASE,
-			   cpu_data[cpu].hpa);
+			   per_cpu(cpu_data, cpu).hpa);
 		goto set_out;
 	}
 #endif
@@ -421,5 +422,5 @@ void __init init_IRQ(void)
 
 void ack_bad_irq(unsigned int irq)
 {
-	printk("unexpected IRQ %d\n", irq);
+	printk(KERN_WARNING "unexpected IRQ %d\n", irq);
 }
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 370086f..678a031 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -3,7 +3,7 @@
  *    Initial setup-routines for HP 9000 based hardware.
  *
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
- *    Modifications for PA-RISC (C) 1999 Helge Deller <deller@gmx.de>
+ *    Modifications for PA-RISC (C) 1999-2008 Helge Deller <deller@gmx.de>
  *    Modifications copyright 1999 SuSE GmbH (Philipp Rumpf)
  *    Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net>
  *    Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org>
@@ -46,7 +46,7 @@
 struct system_cpuinfo_parisc boot_cpu_data __read_mostly;
 EXPORT_SYMBOL(boot_cpu_data);
 
-struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly;
+DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
 extern int update_cr16_clocksource(void);	/* from time.c */
 
@@ -69,6 +69,23 @@ extern int update_cr16_clocksource(void);	/* from time.c */
 */
 
 /**
+ * init_cpu_profiler - enable/setup per cpu profiling hooks.
+ * @cpunum: The processor instance.
+ *
+ * FIXME: doesn't do much yet...
+ */
+static void __cpuinit
+init_percpu_prof(unsigned long cpunum)
+{
+	struct cpuinfo_parisc *p;
+
+	p = &per_cpu(cpu_data, cpunum);
+	p->prof_counter = 1;
+	p->prof_multiplier = 1;
+}
+
+
+/**
  * processor_probe - Determine if processor driver should claim this device.
  * @dev: The device which has been found.
  *
@@ -147,7 +164,7 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 	}
 #endif
 
-	p = &cpu_data[cpuid];
+	p = &per_cpu(cpu_data, cpuid);
 	boot_cpu_data.cpu_count++;
 
 	/* initialize counters - CPU 0 gets it_value set in time_init() */
@@ -162,12 +179,9 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 #ifdef CONFIG_SMP
 	/*
 	** FIXME: review if any other initialization is clobbered
-	**	for boot_cpu by the above memset().
+	**	  for boot_cpu by the above memset().
 	*/
-
-	/* stolen from init_percpu_prof() */
-	cpu_data[cpuid].prof_counter = 1;
-	cpu_data[cpuid].prof_multiplier = 1;
+	init_percpu_prof(cpuid);
 #endif
 
 	/*
@@ -261,19 +275,6 @@ void __init collect_boot_cpu_data(void)
 }
 
 
-/**
- * init_cpu_profiler - enable/setup per cpu profiling hooks.
- * @cpunum: The processor instance.
- *
- * FIXME: doesn't do much yet...
- */
-static inline void __init
-init_percpu_prof(int cpunum)
-{
-	cpu_data[cpunum].prof_counter = 1;
-	cpu_data[cpunum].prof_multiplier = 1;
-}
-
 
 /**
  * init_per_cpu - Handle individual processor initializations.
@@ -293,7 +294,7 @@ init_percpu_prof(int cpunum)
  *
  * o Enable CPU profiling hooks.
  */
-int __init init_per_cpu(int cpunum)
+int __cpuinit init_per_cpu(int cpunum)
 {
 	int ret;
 	struct pdc_coproc_cfg coproc_cfg;
@@ -307,8 +308,8 @@ int __init init_per_cpu(int cpunum)
 		/* FWIW, FP rev/model is a more accurate way to determine
 		** CPU type. CPU rev/model has some ambiguous cases.
 		*/
-		cpu_data[cpunum].fp_rev = coproc_cfg.revision;
-		cpu_data[cpunum].fp_model = coproc_cfg.model;
+		per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
+		per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
 
 		printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
 			cpunum, coproc_cfg.revision, coproc_cfg.model);
@@ -344,16 +345,17 @@ int __init init_per_cpu(int cpunum)
 int
 show_cpuinfo (struct seq_file *m, void *v)
 {
-	int	n;
+	unsigned long cpu;
 
-	for(n=0; n<boot_cpu_data.cpu_count; n++) {
+	for_each_online_cpu(cpu) {
+		const struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
 #ifdef CONFIG_SMP
-		if (0 == cpu_data[n].hpa)
+		if (0 == cpuinfo->hpa)
 			continue;
 #endif
-		seq_printf(m, "processor\t: %d\n"
+		seq_printf(m, "processor\t: %lu\n"
 				"cpu family\t: PA-RISC %s\n",
-				 n, boot_cpu_data.family_name);
+				 cpu, boot_cpu_data.family_name);
 
 		seq_printf(m, "cpu\t\t: %s\n",  boot_cpu_data.cpu_name );
 
@@ -365,8 +367,8 @@ show_cpuinfo (struct seq_file *m, void *v)
 		seq_printf(m, "model\t\t: %s\n"
 				"model name\t: %s\n",
 				 boot_cpu_data.pdc.sys_model_name,
-				 cpu_data[n].dev ? 
-				 cpu_data[n].dev->name : "Unknown" );
+				 cpuinfo->dev ?
+				 cpuinfo->dev->name : "Unknown" );
 
 		seq_printf(m, "hversion\t: 0x%08x\n"
 			        "sversion\t: 0x%08x\n",
@@ -377,8 +379,8 @@ show_cpuinfo (struct seq_file *m, void *v)
 		show_cache_info(m);
 
 		seq_printf(m, "bogomips\t: %lu.%02lu\n",
-			     cpu_data[n].loops_per_jiffy / (500000 / HZ),
-			     (cpu_data[n].loops_per_jiffy / (5000 / HZ)) % 100);
+			     cpuinfo->loops_per_jiffy / (500000 / HZ),
+			     (cpuinfo->loops_per_jiffy / (5000 / HZ)) % 100);
 
 		seq_printf(m, "software id\t: %ld\n\n",
 				boot_cpu_data.pdc.model.sw_id);
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 39e7c5a..f2656ce 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -319,7 +319,7 @@ static int __init parisc_init(void)
 	
 	processor_init();
 	printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
-			boot_cpu_data.cpu_count,
+			num_present_cpus(),
 			boot_cpu_data.cpu_name,
 			boot_cpu_data.cpu_hz / 1000000,
 			boot_cpu_data.cpu_hz % 1000000	);
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 85fc775..1fdea4d 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -56,16 +56,17 @@ static int smp_debug_lvl = 0;
 		if (lvl >= smp_debug_lvl)	\
 			printk(printargs);
 #else
-#define smp_debug(lvl, ...)
+#define smp_debug(lvl, ...)	do { } while(0)
 #endif /* DEBUG_SMP */
 
 DEFINE_SPINLOCK(smp_lock);
 
 volatile struct task_struct *smp_init_current_idle_task;
 
-static volatile int cpu_now_booting __read_mostly = 0;	/* track which CPU is booting */
+/* track which CPU is booting */
+static volatile int cpu_now_booting __cpuinitdata;
 
-static int parisc_max_cpus __read_mostly = 1;
+static int parisc_max_cpus __cpuinitdata = 1;
 
 /* online cpus are ones that we've managed to bring up completely
  * possible cpus are all valid cpu 
@@ -146,7 +147,7 @@ irqreturn_t
 ipi_interrupt(int irq, void *dev_id) 
 {
 	int this_cpu = smp_processor_id();
-	struct cpuinfo_parisc *p = &cpu_data[this_cpu];
+	struct cpuinfo_parisc *p = &per_cpu(cpu_data, this_cpu);
 	unsigned long ops;
 	unsigned long flags;
 
@@ -246,13 +247,13 @@ ipi_interrupt(int irq, void *dev_id)
 static inline void
 ipi_send(int cpu, enum ipi_message_type op)
 {
-	struct cpuinfo_parisc *p = &cpu_data[cpu];
+	struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpu);
 	spinlock_t *lock = &per_cpu(ipi_lock, cpu);
 	unsigned long flags;
 
 	spin_lock_irqsave(lock, flags);
 	p->pending_ipi |= 1 << op;
-	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, cpu_data[cpu].hpa);
+	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, p->hpa);
 	spin_unlock_irqrestore(lock, flags);
 }
 
@@ -260,10 +261,7 @@ ipi_send(int cpu, enum ipi_message_type op)
 static inline void
 send_IPI_single(int dest_cpu, enum ipi_message_type op)
 {
-	if (dest_cpu == NO_PROC_ID) {
-		BUG();
-		return;
-	}
+	BUG_ON(dest_cpu == NO_PROC_ID);
 
 	ipi_send(dest_cpu, op);
 }
@@ -416,8 +414,7 @@ smp_cpu_init(int cpunum)
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);
 	current->active_mm = &init_mm;
-	if(current->mm)
-		BUG();
+	BUG_ON(current->mm);
 	enter_lazy_tlb(&init_mm, current);
 
 	init_IRQ();   /* make sure no IRQs are enabled or pending */
@@ -452,6 +449,7 @@ void __init smp_callin(void)
  */
 int __cpuinit smp_boot_one_cpu(int cpuid)
 {
+	const struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpuid);
 	struct task_struct *idle;
 	long timeout;
 
@@ -483,7 +481,7 @@ int __cpuinit smp_boot_one_cpu(int cpuid)
 	smp_init_current_idle_task = idle ;
 	mb();
 
-	printk("Releasing cpu %d now, hpa=%lx\n", cpuid, cpu_data[cpuid].hpa);
+	printk(KERN_INFO "Releasing cpu %d now, hpa=%lx\n", cpuid, p->hpa);
 
 	/*
 	** This gets PDC to release the CPU from a very tight loop.
@@ -494,7 +492,7 @@ int __cpuinit smp_boot_one_cpu(int cpuid)
 	** EIR{0}). MEM_RENDEZ is valid only when it is nonzero and the 
 	** contents of memory are valid."
 	*/
-	gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, cpu_data[cpuid].hpa);
+	gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, p->hpa);
 	mb();
 
 	/* 
@@ -526,12 +524,12 @@ alive:
 	return 0;
 }
 
-void __devinit smp_prepare_boot_cpu(void)
+void __init smp_prepare_boot_cpu(void)
 {
-	int bootstrap_processor=cpu_data[0].cpuid;	/* CPU ID of BSP */
+	int bootstrap_processor = per_cpu(cpu_data, 0).cpuid;
 
 	/* Setup BSP mappings */
-	printk("SMP: bootstrap CPU ID is %d\n",bootstrap_processor);
+	printk(KERN_INFO "SMP: bootstrap CPU ID is %d\n", bootstrap_processor);
 
 	cpu_set(bootstrap_processor, cpu_online_map);
 	cpu_set(bootstrap_processor, cpu_present_map);
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 24be86b..9db61b4 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -59,7 +59,7 @@ irqreturn_t timer_interrupt(int irq, void *dev_id)
 	unsigned long cycles_elapsed, ticks_elapsed;
 	unsigned long cycles_remainder;
 	unsigned int cpu = smp_processor_id();
-	struct cpuinfo_parisc *cpuinfo = &cpu_data[cpu];
+	struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
 
 	/* gcc can optimize for "read-only" case with a local clocktick */
 	unsigned long cpt = clocktick;
@@ -212,7 +212,7 @@ void __init start_cpu_itimer(void)
 
 	mtctl(next_tick, 16);		/* kick off Interval Timer (CR16) */
 
-	cpu_data[cpu].it_value = next_tick;
+	per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
 void __init time_init(void)
diff --git a/arch/parisc/kernel/topology.c b/arch/parisc/kernel/topology.c
index d71cb01..f515938 100644
--- a/arch/parisc/kernel/topology.c
+++ b/arch/parisc/kernel/topology.c
@@ -22,14 +22,14 @@
 #include <linux/cpu.h>
 #include <linux/cache.h>
 
-static struct cpu cpu_devices[NR_CPUS] __read_mostly;
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
 
 static int __init topology_init(void)
 {
 	int num;
 
 	for_each_present_cpu(num) {
-		register_cpu(&cpu_devices[num], num);
+		register_cpu(&per_cpu(cpu_devices, num), num);
 	}
 	return 0;
 }
diff --git a/include/asm-parisc/processor.h b/include/asm-parisc/processor.h
index 3c9d348..9d64df8 100644
--- a/include/asm-parisc/processor.h
+++ b/include/asm-parisc/processor.h
@@ -17,6 +17,7 @@
 #include <asm/ptrace.h>
 #include <asm/types.h>
 #include <asm/system.h>
+#include <asm/percpu.h>
 #endif /* __ASSEMBLY__ */
 
 #define KERNEL_STACK_SIZE 	(4*PAGE_SIZE)
@@ -109,8 +110,7 @@ struct cpuinfo_parisc {
 };
 
 extern struct system_cpuinfo_parisc boot_cpu_data;
-extern struct cpuinfo_parisc cpu_data[NR_CPUS];
-#define current_cpu_data cpu_data[smp_processor_id()]
+DECLARE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
 #define CPU_HVERSION ((boot_cpu_data.hversion >> 4) & 0x0FFF)
 

 
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Subject: parisc DISCONTIGMEM compile breakage
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Commit 54a6eb5c4765aa573a030ceeba2c14e3d2ea5706
(mm: use two zonelist that are filtered by GFP mask)
causes the following build error with CONFIG_DISCONTIGMEM=y
on parisc:

<--  snip  -->

...
  CC      arch/parisc/mm/init.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/parisc/mm/init.c: In function 'show_mem':
/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/parisc/mm/init.c:609: error: too few arguments to function 'node_zonelist'
make[2]: *** [arch/parisc/mm/init.o] Error 1

<--  snip  -->

cu
Adrian

-- 

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       "Only a promise," Lao Er said.
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From - Thu Nov 08 21:02:14 2018
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Subject: Re: parisc DISCONTIGMEM compile breakage
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On Tue, May 06, 2008 at 04:46:48PM +0300, Adrian Bunk wrote:
> Commit 54a6eb5c4765aa573a030ceeba2c14e3d2ea5706
> (mm: use two zonelist that are filtered by GFP mask)
> causes the following build error with CONFIG_DISCONTIGMEM=y
> on parisc:
> 
> <--  snip  -->
> 
> ...
>   CC      arch/parisc/mm/init.o
> /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/parisc/mm/init.c: In function 'show_mem':
> /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/parisc/mm/init.c:609: error: too few arguments to function 'node_zonelist'
> make[2]: *** [arch/parisc/mm/init.o] Error 1
> 

yes. the obvious fix works and boots, but I haven't quite determined why
they decided to add this yet, so no patch committed plz.

cheers, kyle
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Subject: Re: parisc DISCONTIGMEM compile breakage
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On (06/05/08 16:46), Adrian Bunk didst pronounce:
> Commit 54a6eb5c4765aa573a030ceeba2c14e3d2ea5706
> (mm: use two zonelist that are filtered by GFP mask)
> causes the following build error with CONFIG_DISCONTIGMEM=y
> on parisc:
> 

Thanks Adrian. I don't have a pa-risc cross-compiler and there isn't one
at the usual source http://userweb.kernel.org/~akpm/cross-compilers but the
patch below should fix it. Note that this debugging code should be deleted if
the mm-initialisation-and-debugging framework in -mm is merged to mainline
as it knows how to print all the zonelists where as the pa-risc equivilant
misses the GFP_THISNODE lists.

=====
Subject: [PATCH] Fix pa-risc DISCONTIGMEM compile breakage
    
PA-RISC to aid debugging prints out the zonelists setup by the system. A
bad call to node_zonelist() breaks at compile-time. This patch fixes it.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
---
 arch/parisc/mm/init.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1f01284..b0ed709 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -606,7 +606,7 @@ void show_mem(void)
 		int i, j;
 
 		for (i = 0; i < npmem_ranges; i++) {
-			zl = node_zonelist(i);
+			zl = node_zonelist(i, 0);
 			for (j = 0; j < MAX_NR_ZONES; j++) {
 				struct zoneref *z;
 				struct zone *zone;

-- 
Mel Gorman
Part-time Phd Student                          Linux Technology Center
University of Limerick                         IBM Dublin Software Lab
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From - Thu Nov 08 21:02:14 2018
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On (06/05/08 11:24), Kyle McMartin didst pronounce:
> On Tue, May 06, 2008 at 04:46:48PM +0300, Adrian Bunk wrote:
> > Commit 54a6eb5c4765aa573a030ceeba2c14e3d2ea5706
> > (mm: use two zonelist that are filtered by GFP mask)
> > causes the following build error with CONFIG_DISCONTIGMEM=y
> > on parisc:
> > 
> > <--  snip  -->
> > 
> > ...
> >   CC      arch/parisc/mm/init.o
> > /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/parisc/mm/init.c: In function 'show_mem':
> > /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/parisc/mm/init.c:609: error: too few arguments to function 'node_zonelist'
> > make[2]: *** [arch/parisc/mm/init.o] Error 1
> > 
> 
> yes. the obvious fix works and boots, but I haven't quite determined why
> they decided to add this yet, so no patch committed plz.
> 

I'm not sure what you are referring to as "this" here. If you mean the
zonelist changes, they were done to reduce the number of zonelists that
exist, to clear up an anomoly with MPOL_BIND and to remove a hack called
alloc_should_filter_zonelist() in the page allocator. The pa-risc code that
walks zonelists (presumably for debugging) has been around for a while and
was updated at the same time as the zonelist patches were done, just not as
well as it should have been.

-- 
Mel Gorman
Part-time Phd Student                          Linux Technology Center
University of Limerick                         IBM Dublin Software Lab
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On Tue, Apr 22, 2008 at 08:54:38PM -0400, Kyle McMartin wrote:
> On Tue, Apr 22, 2008 at 06:44:40PM -0600, Grant Grundler wrote:
> > 
> > *nod* I don't expect CPUs to show up in inventory if they are
> > deconfigured in BCH. Maybe J-class firmware has this wrong? *shrug*
> > Something worth checking I guess.
> > 
> 
> i booted the kernel from my rp3440 on my j6000. i also get this cpu1 is
> stuck message. putting a panic in the SMP C-code entrypoint is never
> hit.
> 
> most oddly, putting a hpmc-causing insn sequence in the entry point
> doesn't trigger either, so the cpu isn't coming out of the rendezvous.
> 
> even more oddly, the stwa insn in the bring up code looks fine.

still nothing changed with 2.6.26-rc1-00110-ga153063

cheers,
Domenico

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Subject: Re: parisc DISCONTIGMEM compile breakage
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Reviewed-by: Christoph Lameter <clameter@sgi.com>

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From - Thu Nov 08 21:02:14 2018
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Subject: Re: parisc DISCONTIGMEM compile breakage
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On Tue, 2008-05-06 at 16:27 +0100, Mel Gorman wrote:
> On (06/05/08 16:46), Adrian Bunk didst pronounce:
> > Commit 54a6eb5c4765aa573a030ceeba2c14e3d2ea5706
> > (mm: use two zonelist that are filtered by GFP mask)
> > causes the following build error with CONFIG_DISCONTIGMEM=y
> > on parisc:
> > 
> 
> Thanks Adrian. I don't have a pa-risc cross-compiler and there isn't one
> at the usual source http://userweb.kernel.org/~akpm/cross-compilers but the
> patch below should fix it. Note that this debugging code should be deleted if
> the mm-initialisation-and-debugging framework in -mm is merged to mainline
> as it knows how to print all the zonelists where as the pa-risc equivilant
> misses the GFP_THISNODE lists.
> 
> =====
> Subject: [PATCH] Fix pa-risc DISCONTIGMEM compile breakage
>     
> PA-RISC to aid debugging prints out the zonelists setup by the system. A
> bad call to node_zonelist() breaks at compile-time. This patch fixes it.
> 
> Signed-off-by: Mel Gorman <mel@csn.ul.ie>
> ---
>  arch/parisc/mm/init.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> index 1f01284..b0ed709 100644
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -606,7 +606,7 @@ void show_mem(void)
>  		int i, j;
>  
>  		for (i = 0; i < npmem_ranges; i++) {
> -			zl = node_zonelist(i);
> +			zl = node_zonelist(i, 0);
>  			for (j = 0; j < MAX_NR_ZONES; j++) {

This rather doesn't look right.  The intent is for i to iterate over the
ranges (as nodes) and j to iterate over the zones to get the zonelist.
The original variable k was going over the mappings, which you replaced
with for_each_zone_zonelist.  If you use node_zonelist(i, 0) you don't
really look at the actual zones in the map.

Therefore it seems what will give the original functionality back is
actually this:

James

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1f01284..7bc286d 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -602,15 +602,16 @@ void show_mem(void)
 
 #ifdef CONFIG_DISCONTIGMEM
 	{
-		struct zonelist *zl;
 		int i, j;
 
 		for (i = 0; i < npmem_ranges; i++) {
-			zl = node_zonelist(i);
 			for (j = 0; j < MAX_NR_ZONES; j++) {
+				struct zonelist *zl;
 				struct zoneref *z;
 				struct zone *zone;
 
+				zl = NODE_DATA(i)->node_zonelists + j;
+
 				printk("Zone list for zone %d on node %d: ", j, i);
 				for_each_zone_zonelist(zone, z, zl, j)
 					printk("[%d/%s] ", zone_to_nid(zone),


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From - Thu Nov 08 21:02:14 2018
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Subject: Re: parisc DISCONTIGMEM compile breakage
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On (06/05/08 14:58), James Bottomley didst pronounce:
> On Tue, 2008-05-06 at 16:27 +0100, Mel Gorman wrote:
> > On (06/05/08 16:46), Adrian Bunk didst pronounce:
> > > Commit 54a6eb5c4765aa573a030ceeba2c14e3d2ea5706
> > > (mm: use two zonelist that are filtered by GFP mask)
> > > causes the following build error with CONFIG_DISCONTIGMEM=y
> > > on parisc:
> > > 
> > 
> > Thanks Adrian. I don't have a pa-risc cross-compiler and there isn't one
> > at the usual source http://userweb.kernel.org/~akpm/cross-compilers but the
> > patch below should fix it. Note that this debugging code should be deleted if
> > the mm-initialisation-and-debugging framework in -mm is merged to mainline
> > as it knows how to print all the zonelists where as the pa-risc equivilant
> > misses the GFP_THISNODE lists.
> > 
> > =====
> > Subject: [PATCH] Fix pa-risc DISCONTIGMEM compile breakage
> >     
> > PA-RISC to aid debugging prints out the zonelists setup by the system. A
> > bad call to node_zonelist() breaks at compile-time. This patch fixes it.
> > 
> > Signed-off-by: Mel Gorman <mel@csn.ul.ie>
> > ---
> >  arch/parisc/mm/init.c |    2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> > index 1f01284..b0ed709 100644
> > --- a/arch/parisc/mm/init.c
> > +++ b/arch/parisc/mm/init.c
> > @@ -606,7 +606,7 @@ void show_mem(void)
> >  		int i, j;
> >  
> >  		for (i = 0; i < npmem_ranges; i++) {
> > -			zl = node_zonelist(i);
> > +			zl = node_zonelist(i, 0);
> >  			for (j = 0; j < MAX_NR_ZONES; j++) {
> 
> This rather doesn't look right.  The intent is for i to iterate over the
> ranges (as nodes) and j to iterate over the zones to get the zonelist.

Yes, that appears to be the original intention.

> The original variable k was going over the mappings, which you replaced
> with for_each_zone_zonelist.  If you use node_zonelist(i, 0) you don't
> really look at the actual zones in the map.
> 

No, but you filter the one list based on the highest zone that can be
accesssed.

> Therefore it seems what will give the original functionality back is
> actually this:
> 

To be fair, a few weeks ago you would have been right. Since then zonelists
have changed though so that there are only two zonelists per node in
git-latest. One which is for general allocations and one for GFP_THISNODE. The
zonelist is filtered based on the GFP flags, hence the iterator. I copied the
parisc code with the compile-fix into mm/page_alloc.c and called it just to
be sure and with qemu, I see

[    0.628960] Zone list for zone 0 on node 0: [0/DMA] 
[    0.628960] Zone list for zone 1 on node 0: [0/Normal] [0/DMA] 
[    0.628960] Zone list for zone 2 on node 0: [0/HighMem] [0/Normal] [0/DMA] 
[    0.628960] Zone list for zone 3 on node 0: [0/Movable] [0/HighMem] [0/Normal] [0/DMA]

which looks right (movablecore was specified hence the existance of the
movable zone).

> <SNIP>
>  			for (j = 0; j < MAX_NR_ZONES; j++) {
> +				struct zonelist *zl;
>  				struct zoneref *z;
>  				struct zone *zone;
>  
> +				zl = NODE_DATA(i)->node_zonelists + j;
> +

This would read past the end of the node_zonelists array which is only
MAX_ZONELISTS (2 for CONFIG_NUMA) in size.

>  				printk("Zone list for zone %d on node %d: ", j, i);
>  				for_each_zone_zonelist(zone, z, zl, j)
>  					printk("[%d/%s] ", zone_to_nid(zone),
> 
> 

-- 
Mel Gorman
Part-time Phd Student                          Linux Technology Center
University of Limerick                         IBM Dublin Software Lab
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On Tue, 2008-05-06 at 22:17 +0100, Mel Gorman wrote:
> On (06/05/08 14:58), James Bottomley didst pronounce:
> > On Tue, 2008-05-06 at 16:27 +0100, Mel Gorman wrote:
> > > On (06/05/08 16:46), Adrian Bunk didst pronounce:
> > > > Commit 54a6eb5c4765aa573a030ceeba2c14e3d2ea5706
> > > > (mm: use two zonelist that are filtered by GFP mask)
> > > > causes the following build error with CONFIG_DISCONTIGMEM=y
> > > > on parisc:
> > > > 
> > > 
> > > Thanks Adrian. I don't have a pa-risc cross-compiler and there isn't one
> > > at the usual source http://userweb.kernel.org/~akpm/cross-compilers but the
> > > patch below should fix it. Note that this debugging code should be deleted if
> > > the mm-initialisation-and-debugging framework in -mm is merged to mainline
> > > as it knows how to print all the zonelists where as the pa-risc equivilant
> > > misses the GFP_THISNODE lists.
> > > 
> > > =====
> > > Subject: [PATCH] Fix pa-risc DISCONTIGMEM compile breakage
> > >     
> > > PA-RISC to aid debugging prints out the zonelists setup by the system. A
> > > bad call to node_zonelist() breaks at compile-time. This patch fixes it.
> > > 
> > > Signed-off-by: Mel Gorman <mel@csn.ul.ie>
> > > ---
> > >  arch/parisc/mm/init.c |    2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> > > index 1f01284..b0ed709 100644
> > > --- a/arch/parisc/mm/init.c
> > > +++ b/arch/parisc/mm/init.c
> > > @@ -606,7 +606,7 @@ void show_mem(void)
> > >  		int i, j;
> > >  
> > >  		for (i = 0; i < npmem_ranges; i++) {
> > > -			zl = node_zonelist(i);
> > > +			zl = node_zonelist(i, 0);
> > >  			for (j = 0; j < MAX_NR_ZONES; j++) {
> > 
> > This rather doesn't look right.  The intent is for i to iterate over the
> > ranges (as nodes) and j to iterate over the zones to get the zonelist.
> 
> Yes, that appears to be the original intention.
> 
> > The original variable k was going over the mappings, which you replaced
> > with for_each_zone_zonelist.  If you use node_zonelist(i, 0) you don't
> > really look at the actual zones in the map.
> > 
> 
> No, but you filter the one list based on the highest zone that can be
> accesssed.
> 
> > Therefore it seems what will give the original functionality back is
> > actually this:
> > 
> 
> To be fair, a few weeks ago you would have been right. Since then zonelists
> have changed though so that there are only two zonelists per node in
> git-latest. One which is for general allocations and one for GFP_THISNODE. The
> zonelist is filtered based on the GFP flags, hence the iterator. I copied the
> parisc code with the compile-fix into mm/page_alloc.c and called it just to
> be sure and with qemu, I see
> 
> [    0.628960] Zone list for zone 0 on node 0: [0/DMA] 
> [    0.628960] Zone list for zone 1 on node 0: [0/Normal] [0/DMA] 
> [    0.628960] Zone list for zone 2 on node 0: [0/HighMem] [0/Normal] [0/DMA] 
> [    0.628960] Zone list for zone 3 on node 0: [0/Movable] [0/HighMem] [0/Normal] [0/DMA]
> 
> which looks right (movablecore was specified hence the existance of the
> movable zone).

Thanks ... I confirmed that your fix does actually work.  Mysteriously,
this is what it produces as output:

Zone list for zone 0 on node 0: [0/Normal] [0/Normal] 
Zone list for zone 1 on node 0: [0/Normal] [0/Normal] 
Zone list for zone 0 on node 1: [0/Normal] [0/Normal] 
Zone list for zone 1 on node 1: [0/Normal] [0/Normal] 

Which is correct

James


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From: Ulrich Drepper <drepper@redhat.com>
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Subject: [PATCH] flag parameters: arch-specific SOCK_NONBLOCK
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The value of O_NONBLOCK clashes on Alpha dn PARISC with the bits used
for socket types.  Therefore we cannot define SOCK_NONBLOCK as
O_NONBLOCK on these platforms.  This patch adds support for an
arch-specific SOCK_NONBLOCK value which doesn't add costs for
other architectures.

 include/asm-alpha/socket.h  |    5 +++++
 include/asm-parisc/socket.h |    5 +++++
 include/linux/net.h         |    2 ++
 net/socket.c                |    9 +++++++++
 4 files changed, 21 insertions(+)


Signed-off-by: Ulrich Drepper <drepper@redhat.com>

diff --git a/include/asm-alpha/socket.h b/include/asm-alpha/socket.h
index 08c9793..a1057c2 100644
--- a/include/asm-alpha/socket.h
+++ b/include/asm-alpha/socket.h
@@ -62,4 +62,9 @@
 
 #define SO_MARK			36
 
+/* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
+ * have to define SOCK_NONBLOCK to a different value here.
+ */
+#define SOCK_NONBLOCK	0x40000000
+
 #endif /* _ASM_SOCKET_H */
diff --git a/include/asm-parisc/socket.h b/include/asm-parisc/socket.h
index 69a7a0d..fba402c 100644
--- a/include/asm-parisc/socket.h
+++ b/include/asm-parisc/socket.h
@@ -54,4 +54,9 @@
 
 #define SO_MARK			0x401f
 
+/* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
+ * have to define SOCK_NONBLOCK to a different value here.
+ */
+#define SOCK_NONBLOCK   0x40000000
+
 #endif /* _ASM_SOCKET_H */
diff --git a/include/linux/net.h b/include/linux/net.h
index 1b35fd5..dd3b6cd 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -102,7 +102,9 @@ enum sock_type {
 
 /* Flags for socket, socketpair, paccept */
 #define SOCK_CLOEXEC	O_CLOEXEC
+#ifndef SOCK_NONBLOCK
 #define SOCK_NONBLOCK	O_NONBLOCK
+#endif
 
 #endif /* ARCH_HAS_SOCKET_TYPES */
 
diff --git a/net/socket.c b/net/socket.c
index 962bf07..5111af1 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1231,6 +1231,9 @@ asmlinkage long sys_socket(int family, int type, int protocol)
 		return -EINVAL;
 	type &= SOCK_TYPE_MASK;
 
+	if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK))
+		flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK;
+
 	retval = sock_create(family, type, protocol, &sock);
 	if (retval < 0)
 		goto out;
@@ -1265,6 +1268,9 @@ asmlinkage long sys_socketpair(int family, int type, int protocol,
 		return -EINVAL;
 	type &= SOCK_TYPE_MASK;
 
+	if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK))
+		flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK;
+
 	/*
 	 * Obtain the first socket and check if the underlying protocol
 	 * supports the socketpair call.
@@ -1430,6 +1436,9 @@ long do_accept(int fd, struct sockaddr __user *upeer_sockaddr,
 	if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK))
 		return -EINVAL;
 
+	if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK))
+		flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK;
+
 	sock = sockfd_lookup_light(fd, &err, &fput_needed);
 	if (!sock)
 		goto out;

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From: "Robert P. J. Day" <rpjday@crashcourse.ca>
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Subject: [PATCH] PARISC: Remove ioctl.h content picked up from
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Now that <asm-generic/ioctl.h> allows overriding of the most commonly
changed macro values, take advantage of that.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>

---

  i *think* this leaves an equivalent ioctl.h file, but feel free to
check it carefully and tweak if necessary.

diff --git a/include/asm-parisc/ioctl.h b/include/asm-parisc/ioctl.h
index 68338d2..ec8efa0 100644
--- a/include/asm-parisc/ioctl.h
+++ b/include/asm-parisc/ioctl.h
@@ -32,21 +32,6 @@
  * NOTE: This limits the max parameter size to 16kB -1 !
  */

-#define _IOC_NRBITS	8
-#define _IOC_TYPEBITS	8
-#define _IOC_SIZEBITS	14
-#define _IOC_DIRBITS	2
-
-#define _IOC_NRMASK	((1 << _IOC_NRBITS)-1)
-#define _IOC_TYPEMASK	((1 << _IOC_TYPEBITS)-1)
-#define _IOC_SIZEMASK	((1 << _IOC_SIZEBITS)-1)
-#define _IOC_DIRMASK	((1 << _IOC_DIRBITS)-1)
-
-#define _IOC_NRSHIFT	0
-#define _IOC_TYPESHIFT	(_IOC_NRSHIFT+_IOC_NRBITS)
-#define _IOC_SIZESHIFT	(_IOC_TYPESHIFT+_IOC_TYPEBITS)
-#define _IOC_DIRSHIFT	(_IOC_SIZESHIFT+_IOC_SIZEBITS)
-
 /*
  * Direction bits.
  */
@@ -54,40 +39,6 @@
 #define _IOC_WRITE	2U
 #define _IOC_READ	1U

-#define _IOC(dir,type,nr,size) \
-	(((dir)  << _IOC_DIRSHIFT) | \
-	 ((type) << _IOC_TYPESHIFT) | \
-	 ((nr)   << _IOC_NRSHIFT) | \
-	 ((size) << _IOC_SIZESHIFT))
-
-/* provoke compile error for invalid uses of size argument */
-extern unsigned int __invalid_size_argument_for_IOC;
-#define _IOC_TYPECHECK(t) \
-	((sizeof(t) == sizeof(t[1]) && \
-	  sizeof(t) < (1 << _IOC_SIZEBITS)) ? \
-	  sizeof(t) : __invalid_size_argument_for_IOC)
-
-/* used to create numbers */
-#define _IO(type,nr)		_IOC(_IOC_NONE,(type),(nr),0)
-#define _IOR(type,nr,size)	_IOC(_IOC_READ,(type),(nr),(_IOC_TYPECHECK(size)))
-#define _IOW(type,nr,size)	_IOC(_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size)))
-#define _IOWR(type,nr,size)	_IOC(_IOC_READ|_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size)))
-#define _IOR_BAD(type,nr,size)	_IOC(_IOC_READ,(type),(nr),sizeof(size))
-#define _IOW_BAD(type,nr,size)	_IOC(_IOC_WRITE,(type),(nr),sizeof(size))
-#define _IOWR_BAD(type,nr,size)	_IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size))
-
-/* used to decode ioctl numbers.. */
-#define _IOC_DIR(nr)		(((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)
-#define _IOC_TYPE(nr)		(((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
-#define _IOC_NR(nr)		(((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
-#define _IOC_SIZE(nr)		(((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)
-
-/* ...and for the drivers/sound files... */

From - Thu Nov 08 21:02:14 2018
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Subject: Re: [PARISC][PATCH] Change cpu_data[] and cpu_devices[] to per_cpu
	variables
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On Sat, May 03, 2008 at 12:02:10AM +0200, Helge Deller wrote:
>  config NR_CPUS
> -	int "Maximum number of CPUs (2-32)"
> -	range 2 32
> +	int "Maximum number of CPUs (2-255)"
> +	range 2 255
>  	depends on SMP
>  	default "32"
> +	help
> +	  This allows you to specify the maximum number of CPUs which this
> +	  kernel will support.  The maximum supported value is 255 and the
> +	  minimum value which makes sense is 2.
>  

Er. Why?
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On Fri, May 02, 2008 at 10:02:48PM +0200, Helge Deller wrote:
> --- a/arch/parisc/kernel/perf_asm.S
> +++ b/arch/parisc/kernel/perf_asm.S
> @@ -41,7 +41,7 @@
>  ; The coprocessor only needs to be enabled when
>  ; starting/stopping the coprocessor with the pmenb/pmdis.
>  ;
> -	.text
> +	__HEAD
>  

You didn't build test this. :(
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From - Thu Nov 08 21:02:15 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH] flag parameters: arch-specific SOCK_NONBLOCK
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On Tue, May 13, 2008 at 12:31:50AM -0400, Ulrich Drepper wrote:
> The value of O_NONBLOCK clashes on Alpha dn PARISC with the bits used
> for socket types.  Therefore we cannot define SOCK_NONBLOCK as
> O_NONBLOCK on these platforms.  This patch adds support for an
> arch-specific SOCK_NONBLOCK value which doesn't add costs for
> other architectures.
> 
>  include/asm-alpha/socket.h  |    5 +++++
>  include/asm-parisc/socket.h |    5 +++++
>  include/linux/net.h         |    2 ++
>  net/socket.c                |    9 +++++++++
>  4 files changed, 21 insertions(+)
> 
> 
> Signed-off-by: Ulrich Drepper <drepper@redhat.com>
> 

This looks fine to me. Thanks, Ulrich!

Acked-by: Kyle McMartin <kyle@mcmartin.ca>

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Subject: Re: [PATCH] PARISC: Remove ioctl.h content picked up from
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On Wed, May 14, 2008 at 03:14:52PM -0400, Robert P. J. Day wrote:
> 
> Now that <asm-generic/ioctl.h> allows overriding of the most commonly
> changed macro values, take advantage of that.
> 
> Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
> 
> ---
> 
>   i *think* this leaves an equivalent ioctl.h file, but feel free to
> check it carefully and tweak if necessary.
> 

looks right to me. i'll yell if it ended up breaking something. :)

applied.

r, kyle
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Subject: [git patches] parisc updates for 2.6.26
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The following changes since commit 492c2e476eac010962850006c49df326919b=
284c:
  Linus Torvalds (1):
        Linux 2.6.26-rc2

are available in the git repository at:

  /pub/scm/linux/kernel/git/kyle/parisc-2.6.git master

Alan Cox (1):
      parisc: new termios definitions

Harvey Harrison (2):
      parisc: replace remaining __FUNCTION__ occurrences
      drivers/parisc: replace remaining __FUNCTION__ occurrences

Helge Deller (1):
      parisc: fix trivial section name warnings

Johannes Weiner (1):
      parisc: remove redundant display of free swap space in show_mem()

Kyle McMartin (3):
      parisc: use conditional macro for 64-bit wide ops
      parisc: remove -traditional from assembler flags
      arch/parisc/kernel/perf_asm.S: build fix

Robert P. J. Day (1):
      parisc: Remove ioctl.h content picked up from <asm-generic/ioctl.=
h>.

S.=C3=87a=C4=9Flar Onur (1):
      arch/parisc/kernel/unaligned.c: use time_* macros

 arch/parisc/hpux/gate.S        |    3 +-
 arch/parisc/hpux/wrappers.S    |    3 +-
 arch/parisc/kernel/Makefile    |    3 --
 arch/parisc/kernel/entry.S     |   49 +++++++++++---------------
 arch/parisc/kernel/head.S      |    2 +-
 arch/parisc/kernel/hpmc.S      |    3 +-
 arch/parisc/kernel/inventory.c |    2 +-
 arch/parisc/kernel/pacache.S   |   73 ++++++++++++++++++++------------=
-------
 arch/parisc/kernel/perf_asm.S  |    4 ++-
 arch/parisc/kernel/real2.S     |   13 ++++---
 arch/parisc/kernel/syscall.S   |    5 ++-
 arch/parisc/kernel/traps.c     |    2 +-
 arch/parisc/kernel/unaligned.c |    5 ++-
 arch/parisc/lib/fixup.S        |    3 +-
 arch/parisc/lib/lusercopy.S    |    5 ++-
 arch/parisc/lib/memcpy.c       |    2 +-
 arch/parisc/mm/init.c          |    2 -
 drivers/parisc/asp.c           |    2 +-
 drivers/parisc/ccio-dma.c      |   36 ++++++++++----------
 drivers/parisc/dino.c          |   14 ++++----
 drivers/parisc/gsc.c           |    4 +-
 drivers/parisc/lasi.c          |    2 +-
 drivers/parisc/lba_pci.c       |   22 ++++++------
 drivers/parisc/led.c           |    2 +-
 drivers/parisc/sba_iommu.c     |   42 +++++++++++-----------
 drivers/parisc/wax.c           |    2 +-
 include/asm-parisc/assembly.h  |    6 +--
 include/asm-parisc/ioctl.h     |   51 +---------------------------
 include/asm-parisc/ioctls.h    |    4 ++
 include/asm-parisc/termbits.h  |    5 ++-
 include/asm-parisc/termios.h   |    6 ++-
 31 files changed, 167 insertions(+), 210 deletions(-)
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From - Thu Nov 08 21:02:15 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PARISC][PATCH] fix trivial section name warnings
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To: Kyle McMartin <kyle@mcmartin.ca>
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Hi Kyle,

Kyle McMartin wrote:
> On Fri, May 02, 2008 at 10:02:48PM +0200, Helge Deller wrote:
>> --- a/arch/parisc/kernel/perf_asm.S
>> +++ b/arch/parisc/kernel/perf_asm.S
>> @@ -41,7 +41,7 @@
>>  ; The coprocessor only needs to be enabled when
>>  ; starting/stopping the coprocessor with the pmenb/pmdis.
>>  ;
>> -	.text
>> +	__HEAD
>>  
> 
> You didn't build test this. :(

Of course I did build-tested and booted this patch.
Not sure in which problems you run (or what changed in the meantime...).

Helge
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From - Thu Nov 08 21:02:15 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PARISC][PATCH] Change cpu_data[] and cpu_devices[] to per_cpu
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Kyle McMartin wrote:
> On Sat, May 03, 2008 at 12:02:10AM +0200, Helge Deller wrote:
>>  config NR_CPUS
>> -	int "Maximum number of CPUs (2-32)"
>> -	range 2 32
>> +	int "Maximum number of CPUs (2-255)"
>> +	range 2 255
>>  	depends on SMP
>>  	default "32"
>> +	help
>> +	  This allows you to specify the maximum number of CPUs which this
>> +	  kernel will support.  The maximum supported value is 255 and the
>> +	  minimum value which makes sense is 2.
>>  
> 
> Er. Why?

This is mostly copied over from x86 arch and I think it doesn't make 
anything worse...
Doesn't Superdomes support more than 32 CPUs ? (although I think 
superdome isn't supported yet, or is it?)

Helge
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PARISC][PATCH] Change cpu_data[] and cpu_devices[] to per_cpu
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On Thu, May 15, 2008 at 10:22:43PM +0200, Helge Deller wrote:
> This is mostly copied over from x86 arch and I think it doesn't make 
> anything worse...
> Doesn't Superdomes support more than 32 CPUs ? (although I think superdome 
> isn't supported yet, or is it?)

We don't support anything bigger than 8-way (and only because N-class is
special and has two cpu busses). Much work would be needed to support
more than that for Superdome.

r, Kyle
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Subject: Re: [PARISC][PATCH] Change cpu_data[] and cpu_devices[] to per_cpu
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Kyle McMartin wrote:
> On Thu, May 15, 2008 at 10:22:43PM +0200, Helge Deller wrote:
>> This is mostly copied over from x86 arch and I think it doesn't make 
>> anything worse...
>> Doesn't Superdomes support more than 32 CPUs ? (although I think superdome 
>> isn't supported yet, or is it?)
> 
> We don't support anything bigger than 8-way (and only because N-class is
> special and has two cpu busses). Much work would be needed to support
> more than that for Superdome.

Ok, no problem if you drop the Kconfig part of the patch.
The other parts of the patch are still useful nevertheless.

Helge
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Subject: Re: [PARISC][PATCH] Change cpu_data[] and cpu_devices[] to per_cpu
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On Fri, May 16, 2008 at 12:26:01AM +0200, Helge Deller wrote:
> Kyle McMartin wrote:
>> On Thu, May 15, 2008 at 10:22:43PM +0200, Helge Deller wrote:
>>> This is mostly copied over from x86 arch and I think it doesn't make 
>>> anything worse...
>>> Doesn't Superdomes support more than 32 CPUs ? (although I think 
>>> superdome isn't supported yet, or is it?)
>>
>> We don't support anything bigger than 8-way (and only because N-class is
>> special and has two cpu busses). Much work would be needed to support
>> more than that for Superdome.
>
> Ok, no problem if you drop the Kconfig part of the patch.
> The other parts of the patch are still useful nevertheless.
>

I'll get it in for .27

cheers, Kyle
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Kyle McMartin wrote:
> On Fri, May 16, 2008 at 12:26:01AM +0200, Helge Deller wrote:
>> Kyle McMartin wrote:
>>> On Thu, May 15, 2008 at 10:22:43PM +0200, Helge Deller wrote:
>>>> This is mostly copied over from x86 arch and I think it doesn't make 
>>>> anything worse...
>>>> Doesn't Superdomes support more than 32 CPUs ? (although I think 
>>>> superdome isn't supported yet, or is it?)
>>> We don't support anything bigger than 8-way (and only because N-class is
>>> special and has two cpu busses). Much work would be needed to support
>>> more than that for Superdome.
>> Ok, no problem if you drop the Kconfig part of the patch.
>> The other parts of the patch are still useful nevertheless.
>>
> 
> I'll get it in for .27

Thanks Kyle.

This is even my preferred solution, since I forgot to mention that I 
only was able to compile- and boot-test it on a UP machine, so a little 
more testing in SMP environments would be good.... (I don't have a SMP 
machine).

Helge
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PARISC][PATCH] Change cpu_data[] and cpu_devices[] to per_cpu
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To: Helge Deller <deller@gmx.de>
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On Fri, May 16, 2008 at 07:47:45PM +0200, Helge Deller wrote:
> This is even my preferred solution, since I forgot to mention that I only 
> was able to compile- and boot-test it on a UP machine, so a little more 
> testing in SMP environments would be good.... (I don't have a SMP machine).
>

Can you check how much shipping a machine to your house would be? My 
address is 1944 Juno Ave., Ottawa, Canada, K1H 6T2. (Not like it matters
making this public, it's in the WHOIS for my domain anyway. ;-)

regards, Kyle
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From: "Thibaut VARENE" <T-Bone@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Git head doesn't boot on A500
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Hi pa-ckers

Just a quick failure report, I tested git head + jejb's zonelist patch
on my A500 (gcc-4.2) and it hpmc'd the box (afaict) very early during
bootup. I'll dig that more ASAP.

Console log:

Linux version 2.6.26-rc2-dirty (varenet@mkhppa3) (gcc version 4.2.3
(Debian 4.2.3-5)) #1 SMP Sat May 17 15:08:54 CEST 2008
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00005d50 00000491 00000000 00000001 5cbb53d8 100000f0 00000008
000000b2 000000b2
vers  00000301
CPUID vers 18 rev 11 (0x0000024b)
capabilities 0x1
model 9000/800/A500-5X
Memory Ranges:
 0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 MB
 1) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 MB
Total Memory: 4096 MB
SMP: bootstrap CPU ID is 0
Built 2 zonelists in Zone order, mobility grouping on.  Total pages: 1034240
Kernel command line: root=/dev/sda5 console=ttyS0 TERM=vt102
palo_kernel=2/vmlinux-git
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 160x64



Console reset done.

Boot device reset done.


HTH


-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From: Grant Grundler <grundler@parisc-linux.org>
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On Sat, May 17, 2008 at 03:20:46PM +0200, Thibaut VARENE wrote:
> Hi pa-ckers
> 
> Just a quick failure report, I tested git head + jejb's zonelist patch
> on my A500 (gcc-4.2) and it hpmc'd the box (afaict) very early during
> bootup. I'll dig that more ASAP.

Two questions:
1) I suspect you missed the final email of the thread:
      http://thread.gmane.org/gmane.linux.ports.parisc/301/focus=309
   where jejb conceded the original proposed fix was correct.
   Try that instead?
2) PIM dump would help point where in the kernel it HPMC'd.

I'll try current TOB from
    git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

unless someone has a better suggestion.

thanks,
grant
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include/asm-parisc/ptrace.h:

<--  snip  -->

...
struct pt_regs {
        unsigned long gr[32];   /* PSW is in gr[0] */
...
}

<--  snip  -->


arch/parisc/kernel/signal32.c:

<--  snip  -->

...
setup_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __user * rf, 
                struct pt_regs *regs, int in_syscall)            
{
...
                /* Store upper half */
                compat_reg = (compat_uint_t)(regs->gr[32] >> 32);
...                                                   ^^
                /* Store upper half */
                compat_reg = (compat_uint_t)((regs->gr[32]+4) >> 32);
...                                                    ^^

<--  snip  -->


Spotted by the GNU C compiler.


cu
Adrian

-- 

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On Sat, May 17, 2008 at 10:16:37PM +0300, Adrian Bunk wrote:
> setup_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __user * rf, 
>                 struct pt_regs *regs, int in_syscall)            
> {
> ...
>                 /* Store upper half */
>                 compat_reg = (compat_uint_t)(regs->gr[32] >> 32);
> ...                                                   ^^
>                 /* Store upper half */
>                 compat_reg = (compat_uint_t)((regs->gr[32]+4) >> 32);
> ...                                                    ^^
> 
> <--  snip  -->

Yeah, I've already fixed these, was waiting for an ack from the author.

r, Kyle
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From: "Thibaut VARENE" <T-Bone@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Git head doesn't boot on A500
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On Sat, May 17, 2008 at 5:26 PM, Grant Grundler
<grundler@parisc-linux.org> wrote:
> On Sat, May 17, 2008 at 03:20:46PM +0200, Thibaut VARENE wrote:
>> Hi pa-ckers
>>
>> Just a quick failure report, I tested git head + jejb's zonelist patch
>> on my A500 (gcc-4.2) and it hpmc'd the box (afaict) very early during
>> bootup. I'll dig that more ASAP.

Kyle eventually spotted the offending patch:
http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commitdiff;h=bd3bb8c15b9a80dbddfb7905b237a4a11a4725b4;hp=492c2e476eac010962850006c49df326919b284c

Out of this patch, the only two non-offending hunks are:
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index ec2482d..5680a2c 100644 (file)
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -32,7 +32,7 @@ ENTRY(boot_args)
        .word 0 /* arg3 */
 END(boot_args)

-       .section .text.head
+       __HEAD
        .align  4
        .import init_thread_union,data
        .import fault_vector_20,code    /* IVA parisc 2.0 32 bit */

and

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 69b6eeb..ae509d8 100644 (file)
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -636,7 +637,7 @@ END(sys_call_table64)
                All light-weight-syscall atomic operations
                will use this set of locks
        */
-       .section .data
+       .section .data, "aw"
        .align  PAGE_SIZE
 ENTRY(lws_lock_start)
        /* lws locks */

I'm now debugging the timer_interrupt problems, will keep the list posted.

HTH

T-Bone
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From - Thu Nov 08 21:02:16 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: Git head doesn't boot on A500
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On Sun, May 18, 2008 at 02:52:00AM +0200, Thibaut VARENE wrote:
> On Sat, May 17, 2008 at 5:26 PM, Grant Grundler
> <grundler@parisc-linux.org> wrote:
> > On Sat, May 17, 2008 at 03:20:46PM +0200, Thibaut VARENE wrote:
> >> Hi pa-ckers
> >>
> >> Just a quick failure report, I tested git head + jejb's zonelist patch
> >> on my A500 (gcc-4.2) and it hpmc'd the box (afaict) very early during
> >> bootup. I'll dig that more ASAP.
> 
> Kyle eventually spotted the offending patch:
> http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commitdiff;h=bd3bb8c15b9a80dbddfb7905b237a4a11a4725b4;hp=492c2e476eac010962850006c49df326919b284c
> 
> Out of this patch, the only two non-offending hunks are:
> diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
> index ec2482d..5680a2c 100644 (file)
> --- a/arch/parisc/kernel/head.S
> +++ b/arch/parisc/kernel/head.S
> @@ -32,7 +32,7 @@ ENTRY(boot_args)
>         .word 0 /* arg3 */
>  END(boot_args)
> 
> -       .section .text.head
> +       __HEAD
>         .align  4
>         .import init_thread_union,data
>         .import fault_vector_20,code    /* IVA parisc 2.0 32 bit */

So I don't understand how __HEAD works...and all the other arches are
using ".text.head" (not .head.text) which has corresponding "code" in
their vmlinux.lds.  Could someone kindly point out how .head.text 
works for parisc?

> and
> 
> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> index 69b6eeb..ae509d8 100644 (file)
> --- a/arch/parisc/kernel/syscall.S
> +++ b/arch/parisc/kernel/syscall.S
> @@ -636,7 +637,7 @@ END(sys_call_table64)
>                 All light-weight-syscall atomic operations
>                 will use this set of locks
>         */
> -       .section .data
> +       .section .data, "aw"
>         .align  PAGE_SIZE
>  ENTRY(lws_lock_start)
>         /* lws locks */
> 
> I'm now debugging the timer_interrupt problems, will keep the list posted.

That shouldn't be too hard...I can help a bit later tomorrow.

thanks,
grant

> 
> HTH
> 
> T-Bone
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: Git head doesn't boot on A500
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On Sun, May 18, 2008 at 01:13:42AM -0600, Grant Grundler wrote:
> So I don't understand how __HEAD works...and all the other arches are
> using ".text.head" (not .head.text) which has corresponding "code" in
> their vmlinux.lds.  Could someone kindly point out how .head.text 
> works for parisc?
> 

*(.text) will include .head.text...

>
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From - Thu Nov 08 21:02:16 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Git head doesn't boot on A500
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Grant Grundler wrote:
> On Sun, May 18, 2008 at 02:52:00AM +0200, Thibaut VARENE wrote:
>> On Sat, May 17, 2008 at 5:26 PM, Grant Grundler
>> <grundler@parisc-linux.org> wrote:
>>> On Sat, May 17, 2008 at 03:20:46PM +0200, Thibaut VARENE wrote:
>>>> Hi pa-ckers
>>>>
>>>> Just a quick failure report, I tested git head + jejb's zonelist patch
>>>> on my A500 (gcc-4.2) and it hpmc'd the box (afaict) very early during
>>>> bootup. I'll dig that more ASAP.
>> Kyle eventually spotted the offending patch:
>> http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commitdiff;h=bd3bb8c15b9a80dbddfb7905b237a4a11a4725b4;hp=492c2e476eac010962850006c49df326919b284c
>>
>> Out of this patch, the only two non-offending hunks are:
>> diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
>> index ec2482d..5680a2c 100644 (file)
>> --- a/arch/parisc/kernel/head.S
>> +++ b/arch/parisc/kernel/head.S
>> @@ -32,7 +32,7 @@ ENTRY(boot_args)
>>         .word 0 /* arg3 */
>>  END(boot_args)
>>
>> -       .section .text.head
>> +       __HEAD
>>         .align  4
>>         .import init_thread_union,data
>>         .import fault_vector_20,code    /* IVA parisc 2.0 32 bit */
> 
> So I don't understand how __HEAD works...and all the other arches are
> using ".text.head" (not .head.text) which has corresponding "code" in
> their vmlinux.lds.  Could someone kindly point out how .head.text 
> works for parisc?

Yeah, my fault (no idea why it worked for me???).

I see two options:
1) revert my patch (gets to linker warnings and have to build up a new 
patch, ideally adding a section for .text.head to vmlinux.lds.S),
2) apply the attached patch.

Opinions?

Helge

--------------060402080201090608000109
Content-Type: text/plain;
 name="t66"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="t66"

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 50b4a3a..2e516b8 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -50,6 +50,7 @@ SECTIONS
 
 	_text = .;		/* Text and read-only data */
 	.text ALIGN(16) : {
+		HEAD_TEXT
 		TEXT_TEXT
 		SCHED_TEXT
 		LOCK_TEXT

--------------060402080201090608000109--
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From - Thu Nov 08 21:02:16 2018
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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.kernel.input,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [patch 11/18] m68k: Some input drivers do not check the platform
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From: Geert Uytterhoeven <geert@linux-m68k.org>

Some input drivers do not check whether they're actually running on the
correct platform, causing multi-platform kernels to crash if they are not.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 drivers/input/keyboard/hilkbd.c  |    4 ++++
 drivers/input/misc/hp_sdc_rtc.c  |    5 +++++
 drivers/input/serio/hp_sdc_mlc.c |    5 +++++
 3 files changed, 14 insertions(+)

--- a/drivers/input/keyboard/hilkbd.c
+++ b/drivers/input/keyboard/hilkbd.c
@@ -217,6 +217,10 @@ hil_keyb_init(void)
 		return -ENOMEM;
 
 #if defined(CONFIG_HP300)
+	if (!MACH_IS_HP300) {
+		err = -ENODEV;
+		goto err1;
+	}
 	if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
 		printk(KERN_ERR "HIL: hardware register was not found\n");
 		err = -ENODEV;
--- a/drivers/input/misc/hp_sdc_rtc.c
+++ b/drivers/input/misc/hp_sdc_rtc.c
@@ -691,6 +691,11 @@ static int __init hp_sdc_rtc_init(void)
 {
 	int ret;
 
+#ifdef __mc68000__
+	if (!MACH_IS_HP300)
+		return -ENODEV;
+#endif
+
 	init_MUTEX(&i8042tregs);
 
 	if ((ret = hp_sdc_request_timer_irq(&hp_sdc_rtc_isr)))
--- a/drivers/input/serio/hp_sdc_mlc.c
+++ b/drivers/input/serio/hp_sdc_mlc.c
@@ -306,6 +306,11 @@ static int __init hp_sdc_mlc_init(void)
 {
 	hil_mlc *mlc = &hp_sdc_mlc;
 
+#ifdef __mc68000__
+	if (!MACH_IS_HP300)
+		return -ENODEV;
+#endif
+
 	printk(KERN_INFO PREFIX "Registering the System Domain Controller's HIL MLC.\n");
 
 	hp_sdc_mlc_priv.emtestmode = 0;

-- 
Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

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From: Grant Grundler <grundler@parisc-linux.org>
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Cc: Grant Grundler <grundler@parisc-linux.org>,
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To: Helge Deller <deller@gmx.de>
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On Sun, May 18, 2008 at 06:19:52PM +0200, Helge Deller wrote:
...
>> using ".text.head" (not .head.text) which has corresponding "code" in
>> their vmlinux.lds.  Could someone kindly point out how .head.text works 
>> for parisc?
>
> Yeah, my fault (no idea why it worked for me???).

Kyle's explanation sounds right or I expect the sections wouldn't
have been included at all (or something like that) - and maybe it
really only matters for SMP - ie getting secondary CPUs running.

> I see two options:
> 1) revert my patch (gets to linker warnings and have to build up a new 
> patch, ideally adding a section for .text.head to vmlinux.lds.S),
> 2) apply the attached patch.
>
> Opinions?

(2) works for me. I'm booting with 64-bit on a500...at least it's
now finding all the disks and attempting to mount NFS root.

>
> Helge

> diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
> index 50b4a3a..2e516b8 100644
> --- a/arch/parisc/kernel/vmlinux.lds.S
> +++ b/arch/parisc/kernel/vmlinux.lds.S
> @@ -50,6 +50,7 @@ SECTIONS
>  
>  	_text = .;		/* Text and read-only data */
>  	.text ALIGN(16) : {
> +		HEAD_TEXT

grundler <537>fgrep HEAD_TEXT include/*/*.h
include/asm-generic/vmlinux.lds.h:#define HEAD_TEXT  *(.head.text)

Yeah, I like that better than depending on *(.text) to include it.

thanks,
grant

>  		TEXT_TEXT
>  		SCHED_TEXT
>  		LOCK_TEXT

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From - Thu Nov 08 21:02:16 2018
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From: "Thibaut VARENE" <T-Bone@parisc-linux.org>
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Hi pa-ckers

I'm sorry to be yet again just a whistle blower, I couldn't dig that
situation more yet but I'd like to raise awareness in case someone
else experiences the same symptoms. Also, what I'm seeing is a major
security flaw...

I'm running TOB on my A500 nosmp (when running SMP the timer code
borks gently). Randomly, the system seems to goof off regarding uids
and gids.

Typically, I'd ssh into the box as a regular user, and I end up with a
root prompt. Sometimes "w" will output nothing. dpkg will complain
about non-existing vlock group, etc.

Installing some package (with apt-get) I got the following message:
dpkg: syntax error: unknown group `vlock' in statoverride file
Trying again, it worked just fine

WRT ssh:

>From the remote host, I sometime got:
varenet@dogma:~$ ssh mkhppa3
ssh_exchange_identification: Connection closed by remote host

Trying again, I ended up with a root shell. Logging out and back in I
eventually got my own user's prompt.

Then, checking auth.log, I spotted a few very surprising things:

May 18 09:15:04 mkhppa3 sshd[1265]: Invalid user varenet from 147.215.7.200
May 18 09:15:04 mkhppa3 sshd[1265]: Failed none for invalid user
varenet from 147.215.7.200 port 58220 ssh2

May 18 20:50:04 mkhppa3 sshd[12623]: fatal: Privilege separation user
sshd does not exist
May 18 20:50:08 mkhppa3 sshd[12624]: Invalid user lucas from 147.215.7.12
May 18 20:50:08 mkhppa3 sshd[12624]: Failed none for invalid user
lucas from 147.215.7.12 port 59591 ssh2

(needless to say, user "sshd" exists locally and "varenet" and "lucas"
are on the ldap db. Plus, he could log in on a second attempt)

also:
May 18 12:17:01 mkhppa3 CRON[1302]: pam_unix(cron:account): could not
identify user (from getpwnam(root))

There's not much more evidence (couldn't find anything in other
logfiles or in dmesg...), but the box clearly didn't expose any such
symptom when running 2.6.22.14

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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> I'm sorry to be yet again just a whistle blower, I couldn't dig that
> situation more yet but I'd like to raise awareness in case someone
> else experiences the same symptoms. Also, what I'm seeing is a major
> security flaw...
> 
> I'm running TOB on my A500 nosmp (when running SMP the timer code
> borks gently). Randomly, the system seems to goof off regarding uids
> and gids.

I've seen the same with various 2.6.25 32-bit builds.  Haven't seen
it with 64-bit builds.  However, the 64-bit builds haven't been particularly
stable (a few hpmcs).  That's why I still like 2.6.22.19 with Kyle's
compat_sys_getdents, and a few minor bug fixes.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:02:16 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: BUG 2.6.26-rc2: deadlock with pa_tlb_lock
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Hey,
2.6.26-rc2 with fixed vmlinux.lds netboots and with NFS root seems
to mostly work. But it did seem to deadlock. From the TOC (PIM) dump,
looks like a lock didn't get unlocked and both CPUs where spinning
trying to acquire that lock:

CPU0 IP  : 0x4011a23c _spin_lock+14
CPU0 GR02: 0x4011cb6c flush_kernel_dcache_page_addr+34

CPU1 IP  : 0x4011a23c _spin_lock+14
CPU1 GR02: 0x4011cabc __flush_tlb_range+74


flush_kernel_dcache_page_addr() is pretty short:

void flush_kernel_dcache_page_addr(void *addr)
{
        flush_kernel_dcache_page_asm(addr);
        purge_tlb_start();
        pdtlb_kernel(addr);
        purge_tlb_end();
}

Since I just updated my tree to 2.6.26-rc3, I'll use the asm from that:
...
  20:   2b 60 00 00     addil L%0,dp,r1
                        20: R_PARISC_DLTIND21L  pa_tlb_lock
  24:   50 3a 00 00     ldd 0(r1),r26
                        24: R_PARISC_DLTIND14R  pa_tlb_lock
  28:   37 dd 3f a1     ldo -30(sp),ret1
  2c:   e8 00 a0 00     b,l 34 <flush_kernel_dcache_page_addr+0x34>,rp
                        2c: R_PARISC_PCREL22F   _spin_lock
  30:   08 1b 02 44     copy dp,r4
  34:   08 04 02 5b     copy r4,dp
  38:   04 a0 12 00     pdtlb r0(r5)
  3c:   34 1c 00 02     ldi 1,ret0
...

So while the offset looks wrong, __flush_tlb_range has a similar
construct:

  5c:   2b 60 00 00     addil L%0,dp,r1
                        5c: R_PARISC_DLTIND21L  pa_tlb_lock
  60:   08 1b 02 44     copy dp,r4
  64:   50 26 00 00     ldd 0(r1),r6
                        64: R_PARISC_DLTIND14R  pa_tlb_lock
  68:   37 dd 3f a1     ldo -30(sp),ret1
  6c:   e8 00 a0 00     b,l 74 <__flush_tlb_range+0x74>,rp
                        6c: R_PARISC_PCREL22F   _spin_lock
  70:   08 06 02 5a     copy r6,r26
  74:   08 04 02 5b     copy r4,dp
  78:   2b 60 00 00     addil L%0,dp,r1
                        78: R_PARISC_DLTIND21L  split_tlb
  7c:   50 3c 00 00     ldd 0(r1),ret0
                        7c: R_PARISC_DLTIND14R  split_tlb
  80:   0f 80 10 9f     ldw 0(ret0),r31
  84:   87 e0 20 72     cmpib,=,n 0,r31,c4 <__flush_tlb_range+0xc4>
  88:   9c a0 20 28     cmpb,*= r0,r5,a4 <__flush_tlb_range+0xa4>

So I'm pretty sure, whatever is wrong, it's got something to do
with pa_tlb_lock.

Rebuilding now with gcc-4.2 (instead of gcc-4.3) and retesting
with 2.6.26-rc3.

hth,
grant
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From - Thu Nov 08 21:02:17 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: BUG 2.6.26-rc2: deadlock with pa_tlb_lock
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On Mon, May 19, 2008 at 11:39:53PM -0600, Grant Grundler wrote:
...

I've parked the full TOC dump on:
    http://iou.parisc-linux.org/~grundler/console/a500-2.6.26-rc2-deadlock-01

(aka gsyprf11:~grundler/console/...)

> Since I just updated my tree to 2.6.26-rc3, I'll use the asm from that:
> ...
>   20:   2b 60 00 00     addil L%0,dp,r1
>                         20: R_PARISC_DLTIND21L  pa_tlb_lock
...
> So I'm pretty sure, whatever is wrong, it's got something to do
> with pa_tlb_lock.

After staring at the code a bit, I'm wondering if we are guaranteed
to ONLY acquire pa_tlb_lock while interrupts are blocked or is guaranteed
to never be used in the interrupt context. Its not blocking
local interrupts:
#define purge_tlb_start(x) spin_lock(&pa_tlb_lock)

I can't see any other possible cause of deadlock.


And while trying to understand how pdtlb is used (to serialize issueing
pdtlb ops), I think I found one use of "pdtlb" in pacache.S that does
NOT have the pa_tlb_lock protecting it: __clear_user_page_asm()

>From the comments, I gather only N-class is known to need this so
that's not likely to be related to what the deadlock I hit.

> Rebuilding now with gcc-4.2 (instead of gcc-4.3) and retesting
> with 2.6.26-rc3.

This HPMC'd before getting any console output. :(
Stupid "Virtual Front Panel" obscured any following output.

Something must have been still gummed up from the TOC and
idiot booted with NFS root on the first retry.

But running dselect install (update, select both worked) hung with:
Reading package lists... Done

serial console is not responsive either. Well, ^B gets me GSP so
I know the link is working.

hth,
grant

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From - Thu Nov 08 21:02:17 2018
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Hello,

> Hey,
> 
> Rebuilding now with gcc-4.2 (instead of gcc-4.3) and retesting
> with 2.6.26-rc3.
> 
Just a short report, tbh I didn't pay attention that gcc-4.3 became the
default gcc on my unstable install:
same Kyle git tree 2.6.26-rc2 + fixed vmlinux.lds 32bit up build for d380 &
b2k with new gcc-4.3 boot well but nic failed to work (either from box ping
outside or the contrary: nothing respond)? (the same for the 2 different boxes.)

Otoh, same src tree rebuild with gcc-4.2 works fine on the boxes without any
other chg.

Hth,
  r.



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From - Thu Nov 08 21:02:17 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: BUG 2.6.26-rc2: deadlock with pa_tlb_lock
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On Tue, May 20, 2008 at 01:36:14PM +0100, rubisher wrote:
> Hello,
> 
> > Hey,
> >
> > Rebuilding now with gcc-4.2 (instead of gcc-4.3) and retesting
> > with 2.6.26-rc3.
> >
> Just a short report, tbh I didn't pay attention that gcc-4.3 became the
> default gcc on my unstable install:
> same Kyle git tree 2.6.26-rc2 + fixed vmlinux.lds 32bit up build for d380 &
> b2k with new gcc-4.3 boot well but nic failed to work (either from box ping
> outside or the contrary: nothing respond)? (the same for the 2 different boxes.)

Yes - we have to track down what causes the network to fail.
ARP is still working correctly so I'm doubtful this is a
NIC driver problem. I've posted more notes on this several
weeks ago.

The gcc-4.3/networking bug is a seperate issue from the bug
which I original reported in this thread.

hth,
grant

> Otoh, same src tree rebuild with gcc-4.2 works fine on the boxes without any
> other chg.
> 
> Hth,
>   r.
> 
> 
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Cc: Thibaut VARENE <T-Bone@parisc-linux.org>,
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To: Grant Grundler <grundler@parisc-linux.org>, kyle@mcmartin.ca
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Grant Grundler wrote:
> On Sun, May 18, 2008 at 06:19:52PM +0200, Helge Deller wrote:
...
> (2) works for me. I'm booting with 64-bit on a500...at least it's
> now finding all the disks and attempting to mount NFS root.
> 
>> diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
>> index 50b4a3a..2e516b8 100644
>> --- a/arch/parisc/kernel/vmlinux.lds.S
>> +++ b/arch/parisc/kernel/vmlinux.lds.S
>> @@ -50,6 +50,7 @@ SECTIONS
>>  
>>  	_text = .;		/* Text and read-only data */
>>  	.text ALIGN(16) : {
>> +		HEAD_TEXT
> 
> grundler <537>fgrep HEAD_TEXT include/*/*.h
> include/asm-generic/vmlinux.lds.h:#define HEAD_TEXT  *(.head.text)
> 
> Yeah, I like that better than depending on *(.text) to include it.

So, this is the way to go ?
Should I clean up the patch and send to Linus, or Kyle, will you do that 
anyway with other patches?
I think this really should go into 2.6.26.

Helge

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From - Thu Nov 08 21:02:17 2018
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From: "rubisher" <rubisher@scarlet.be>
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Subject: Re: BUG 2.6.26-rc2: deadlock with pa_tlb_lock
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> On Tue, May 20, 2008 at 01:36:14PM +0100, rubisher wrote:
> > Hello,
> > 
> > > Hey,
> > >
> > > Rebuilding now with gcc-4.2 (instead of gcc-4.3) and retesting
> > > with 2.6.26-rc3.
> > >
> > Just a short report, tbh I didn't pay attention that gcc-4.3 became the
> > default gcc on my unstable install:
> > same Kyle git tree 2.6.26-rc2 + fixed vmlinux.lds 32bit up build for d380 &
> > b2k with new gcc-4.3 boot well but nic failed to work (either from box ping
> > outside or the contrary: nothing respond)? (the same for the 2 different
boxes.)
> 
> Yes - we have to track down what causes the network to fail.
> ARP is still working correctly so I'm doubtful this is a
> NIC driver problem. I've posted more notes on this several
> weeks ago.
> 
oops sorry I missed it or simply wrongly understand ;<?

> The gcc-4.3/networking bug is a seperate issue from the bug
> which I original reported in this thread.
> 
ok

cu,
  J.
> hth,
> grant
> 
> > Otoh, same src tree rebuild with gcc-4.2 works fine on the boxes without any
> > other chg.
> > 
> > Hth,
> >   r.
> > 
> > 
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> 

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From - Thu Nov 08 21:02:17 2018
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From: Domenico Andreoli <cavokz@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: 2.6.26-rc3 64bit SMP does not boot on J5600
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Hi,

  after the "1 CPU is stuck" problem, this is what my J5600 parisc
prints at boot before hanging:

Linux version 2.6.26-rc3 (cavok@ska) (gcc version 4.1.3 20080420 (prerelease) (Debian 4.1.2-22)) #11 SMP Thu May 22 15:52:06 CEST 2008
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005d10 00000491 00000000 00000002 77b406fc 100000f0 00000008 000000b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x3
model 9000/785/J5600
Total Memory: 3840 MB
LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
SMP: bootstrap CPU ID is 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 969600
Kernel command line: root=/dev/sdb5 panic=60 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 160x64

This is the .config:

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.26-rc3
# Mon May 19 18:16:20 2008
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_TIME_LOW_RES=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_IRQ_PER_CPU=y
CONFIG_ARCH_SUPPORTS_AOUT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
CONFIG_IKCONFIG=y
# CONFIG_IKCONFIG_PROC is not set
CONFIG_LOG_BUF_SHIFT=15
# CONFIG_CGROUPS is not set
# CONFIG_GROUP_SCHED is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_RELAY is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_COMPAT_BRK=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
# CONFIG_MARKERS is not set
CONFIG_HAVE_OPROFILE=y
# CONFIG_HAVE_KPROBES is not set
# CONFIG_HAVE_KRETPROBES is not set
# CONFIG_HAVE_DMA_ATTRS is not set
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_BLK_DEV_BSG is not set
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_CLASSIC_RCU=y

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
# CONFIG_SPARSEMEM_STATIC is not set
# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_RESOURCES_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_COMPAT=y
CONFIG_NR_CPUS=2

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
CONFIG_ISA=y
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_PCI_LEGACY=y
# CONFIG_PCI_DEBUG is not set
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set

#
# Networking
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=m
# CONFIG_NET_IPGRE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=m
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IP_VS is not set
CONFIG_IPV6=m
# CONFIG_IPV6_PRIVACY is not set
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
CONFIG_INET6_TUNNEL=m
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_BEET is not set
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=m
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETLABEL is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=m
# CONFIG_NF_CT_ACCT is not set
# CONFIG_NF_CONNTRACK_MARK is not set
# CONFIG_NF_CONNTRACK_EVENTS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
# CONFIG_NF_CT_PROTO_SCTP is not set
# CONFIG_NF_CT_PROTO_UDPLITE is not set
# CONFIG_NF_CONNTRACK_AMANDA is not set
CONFIG_NF_CONNTRACK_FTP=m
# CONFIG_NF_CONNTRACK_H323 is not set
CONFIG_NF_CONNTRACK_IRC=m
# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
# CONFIG_NF_CONNTRACK_PPTP is not set
# CONFIG_NF_CONNTRACK_SANE is not set
# CONFIG_NF_CONNTRACK_SIP is not set
# CONFIG_NF_CONNTRACK_TFTP is not set
CONFIG_NF_CT_NETLINK=m
CONFIG_NETFILTER_XTABLES=m
# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set
# CONFIG_NETFILTER_XT_TARGET_CONNMARK is not set
# CONFIG_NETFILTER_XT_TARGET_DSCP is not set
# CONFIG_NETFILTER_XT_TARGET_MARK is not set
# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set
# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set
# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set
# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set
# CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP is not set
# CONFIG_NETFILTER_XT_MATCH_COMMENT is not set
# CONFIG_NETFILTER_XT_MATCH_CONNBYTES is not set
# CONFIG_NETFILTER_XT_MATCH_CONNLIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_CONNMARK is not set
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
# CONFIG_NETFILTER_XT_MATCH_DSCP is not set
# CONFIG_NETFILTER_XT_MATCH_ESP is not set
# CONFIG_NETFILTER_XT_MATCH_HELPER is not set
# CONFIG_NETFILTER_XT_MATCH_IPRANGE is not set
# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
# CONFIG_NETFILTER_XT_MATCH_MAC is not set
# CONFIG_NETFILTER_XT_MATCH_MARK is not set
# CONFIG_NETFILTER_XT_MATCH_OWNER is not set
# CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set
# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
# CONFIG_NETFILTER_XT_MATCH_REALM is not set
# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
CONFIG_NETFILTER_XT_MATCH_STATE=m
# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
# CONFIG_NETFILTER_XT_MATCH_STRING is not set
# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set

#
# IP: Netfilter Configuration
#
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
# CONFIG_IP_NF_QUEUE is not set
CONFIG_IP_NF_IPTABLES=m
# CONFIG_IP_NF_MATCH_RECENT is not set
# CONFIG_IP_NF_MATCH_ECN is not set
# CONFIG_IP_NF_MATCH_AH is not set
# CONFIG_IP_NF_MATCH_TTL is not set
# CONFIG_IP_NF_MATCH_ADDRTYPE is not set
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
# CONFIG_IP_NF_TARGET_REDIRECT is not set
# CONFIG_IP_NF_TARGET_NETMAP is not set
# CONFIG_NF_NAT_SNMP_BASIC is not set
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
# CONFIG_NF_NAT_TFTP is not set
# CONFIG_NF_NAT_AMANDA is not set
# CONFIG_NF_NAT_PPTP is not set
# CONFIG_NF_NAT_H323 is not set
# CONFIG_NF_NAT_SIP is not set
CONFIG_IP_NF_MANGLE=m
# CONFIG_IP_NF_TARGET_ECN is not set
# CONFIG_IP_NF_TARGET_TTL is not set
# CONFIG_IP_NF_TARGET_CLUSTERIP is not set
# CONFIG_IP_NF_RAW is not set
# CONFIG_IP_NF_ARPTABLES is not set

#
# IPv6: Netfilter Configuration
#
CONFIG_NF_CONNTRACK_IPV6=m
# CONFIG_IP6_NF_QUEUE is not set
CONFIG_IP6_NF_IPTABLES=m
# CONFIG_IP6_NF_MATCH_RT is not set
# CONFIG_IP6_NF_MATCH_OPTS is not set
# CONFIG_IP6_NF_MATCH_FRAG is not set
# CONFIG_IP6_NF_MATCH_HL is not set
# CONFIG_IP6_NF_MATCH_IPV6HEADER is not set
# CONFIG_IP6_NF_MATCH_AH is not set
# CONFIG_IP6_NF_MATCH_MH is not set
# CONFIG_IP6_NF_MATCH_EUI64 is not set
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_TARGET_REJECT=m
# CONFIG_IP6_NF_MANGLE is not set
# CONFIG_IP6_NF_RAW is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_SCHED is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set

#
# Wireless
#
# CONFIG_CFG80211 is not set
# CONFIG_WIRELESS_EXT is not set
# CONFIG_MAC80211 is not set
# CONFIG_IEEE80211 is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=m
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
# CONFIG_PNP is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=8192
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_EEPROM_93CX6 is not set
CONFIG_SGI_IOC4=m
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
# CONFIG_ENCLOSURE_SERVICES is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=m
CONFIG_BLK_DEV_IDE=m

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_BLK_DEV_IDEDISK=m
CONFIG_IDEDISK_MULTI_MODE=y
CONFIG_BLK_DEV_IDECD=m
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_BLK_DEV_IDESCSI is not set
# CONFIG_IDE_TASK_IOCTL is not set
# CONFIG_IDE_PROC_FS is not set

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=m
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_BLK_DEV_HD_ONLY is not set
# CONFIG_BLK_DEV_HD is not set

#
# SCSI device support
#
CONFIG_RAID_ATTRS=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=y
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_CHR_DEV_SCH is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_LASI700 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_ZALON is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
# CONFIG_NETDEVICES_MULTIQUEUE is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_LASI_82596 is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
CONFIG_NET_VENDOR_3COM=y
# CONFIG_EL1 is not set
# CONFIG_EL2 is not set
# CONFIG_EL16 is not set
# CONFIG_EL3 is not set
CONFIG_VORTEX=y
# CONFIG_TYPHOON is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
CONFIG_TULIP_NAPI=y
CONFIG_TULIP_NAPI_HW_MITIGATION=y
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_NET_PCI is not set
# CONFIG_B44 is not set
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set

#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 is not set
# CONFIG_IWLWIFI_LEDS is not set

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_GSCPS2 is not set
# CONFIG_HP_SDC is not set
# CONFIG_SERIO_PCIPS2 is not set
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
# CONFIG_DEVKMEM is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=16
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
# CONFIG_SERIAL_8250_MANY_PORTS is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MUX is not set
CONFIG_PDC_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_GEN_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
# CONFIG_SPI is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set

#
# Sonics Silicon Backplane
#
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set

#
# Multimedia devices
#

#
# Multimedia core support
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
# CONFIG_VIDEO_MEDIA is not set

#
# Multimedia drivers
#
# CONFIG_DAB is not set

#
# Graphics support
#
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y

#
# Sound
#
CONFIG_SOUND=m

#
# Advanced Linux Sound Architecture
#
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
# CONFIG_SND_SEQUENCER is not set
# CONFIG_SND_MIXER_OSS is not set
# CONFIG_SND_PCM_OSS is not set
# CONFIG_SND_DYNAMIC_MINORS is not set
# CONFIG_SND_SUPPORT_OLD_API is not set
# CONFIG_SND_VERBOSE_PROCFS is not set
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set

#
# Generic devices
#
CONFIG_SND_AC97_CODEC=m
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set

#
# PCI devices
#
CONFIG_SND_AD1889=m
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
# CONFIG_SND_AC97_POWER_SAVE is not set

#
# USB devices
#
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_CAIAQ is not set

#
# GSC devices
#
# CONFIG_SND_HARMONY is not set

#
# System on Chip audio support
#
# CONFIG_SND_SOC is not set

#
# ALSA SoC audio for Freescale SOCs
#

#
# SoC Audio for the Texas Instruments OMAP
#

#
# Open Sound System
#
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
# CONFIG_HID_SUPPORT is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=m
# CONFIG_USB_DEBUG is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=m
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set

#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
#

#
# may also be needed; see USB_STORAGE Help for more information
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_MON is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_AUERSWALD is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_BERRY_CHARGE is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_PHIDGET is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_GADGET is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
# CONFIG_RTC_CLASS is not set
# CONFIG_UIO is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
# CONFIG_EXT4DEV_FS is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_DNOTIFY is not set
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=m

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=m
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=0
CONFIG_MAGIC_SYSRQ=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_RODATA is not set

#
# Security options
#
# CONFIG_KEYS is not set
CONFIG_SECURITY=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_CAPABILITIES=y
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=0
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_MANAGER=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set

#
# Digest
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=m
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_HW is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
# CONFIG_GENERIC_FIND_FIRST_BIT is not set
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=m
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y


-----[ Domenico Andreoli, aka cavok
 --[ http://www.dandreoli.com/gpgkey.asc
   ---[ 3A0F 2F80 F79C 678A 8936  4FEE 0677 9033 A20E BC50
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From - Thu Nov 08 21:02:17 2018
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X-Mozilla-Keys:                                                                                 
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 2.6.26-rc3 64bit SMP does not boot on J5600
Date: Thu, 22 May 2008 15:23:50 -0400
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On Thu, May 22, 2008 at 06:14:54PM +0200, Domenico Andreoli wrote:
> Hi,
> 
>   after the "1 CPU is stuck" problem, this is what my J5600 parisc
> prints at boot before hanging:
> 

I've got this fixed and cleaned up in my tree. We'll push it along
later, but for now, reverting bd3bb8c15b9a80dbddfb7905b237a4a11a4725b4
will be sufficient to get your machine booting again.

r, Kyle
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From - Thu Nov 08 21:02:17 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [patch] ccio: use the same statistics defines as sba_iommu
Date: Mon, 26 May 2008 01:59:55 -0400
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Looks like the difference was hysterical raisins? Also, was it
intentional that CCIO_SEARCH_TIME has been on for all this time?

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index b30e38f..dcc1e99 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -66,15 +66,8 @@
 #undef DEBUG_CCIO_RUN_SG
 
 #ifdef CONFIG_PROC_FS
-/*
- * CCIO_SEARCH_TIME can help measure how fast the bitmap search is.
- * impacts performance though - ditch it if you don't use it.
- */
-#define CCIO_SEARCH_TIME
-#undef CCIO_MAP_STATS
-#else
-#undef CCIO_SEARCH_TIME
-#undef CCIO_MAP_STATS
+/* depends on proc fs support. But costs CPU performance. */
+#undef CCIO_COLLECT_STATS
 #endif
 
 #include <linux/proc_fs.h>
@@ -239,12 +232,10 @@ struct ioc {
 	u32 res_size;		    	/* size of resource map in bytes */
 	spinlock_t res_lock;
 
-#ifdef CCIO_SEARCH_TIME
+#ifdef CCIO_COLLECT_STATS
 #define CCIO_SEARCH_SAMPLE 0x100
 	unsigned long avg_search[CCIO_SEARCH_SAMPLE];
 	unsigned long avg_idx;		  /* current index into avg_search */
-#endif
-#ifdef CCIO_MAP_STATS
 	unsigned long used_pages;
 	unsigned long msingle_calls;
 	unsigned long msingle_pages;
@@ -351,7 +342,7 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
 	unsigned int pages_needed = size >> IOVP_SHIFT;
 	unsigned int res_idx;
 	unsigned long boundary_size;
-#ifdef CCIO_SEARCH_TIME
+#ifdef CCIO_COLLECT_STATS
 	unsigned long cr_start = mfctl(16);
 #endif
 	
@@ -406,7 +397,7 @@ resource_found:
 	DBG_RES("%s() res_idx %d res_hint: %d\n",
 		__func__, res_idx, ioc->res_hint);
 
-#ifdef CCIO_SEARCH_TIME
+#ifdef CCIO_COLLECT_STATS
 	{
 		unsigned long cr_end = mfctl(16);
 		unsigned long tmp = cr_end - cr_start;
@@ -416,7 +407,7 @@ resource_found:
 	ioc->avg_search[ioc->avg_idx++] = cr_start;
 	ioc->avg_idx &= CCIO_SEARCH_SAMPLE - 1;
 #endif
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 	ioc->used_pages += pages_needed;
 #endif
 	/* 
@@ -452,7 +443,7 @@ ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped)
 	DBG_RES("%s():  res_idx: %d pages_mapped %d\n", 
 		__func__, res_idx, pages_mapped);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 	ioc->used_pages -= pages_mapped;
 #endif
 
@@ -764,7 +755,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
 	size = ALIGN(size + offset, IOVP_SIZE);
 	spin_lock_irqsave(&ioc->res_lock, flags);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 	ioc->msingle_calls++;
 	ioc->msingle_pages += size >> IOVP_SHIFT;
 #endif
@@ -828,7 +819,7 @@ ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
 
 	spin_lock_irqsave(&ioc->res_lock, flags);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 	ioc->usingle_calls++;
 	ioc->usingle_pages += size >> IOVP_SHIFT;
 #endif
@@ -894,7 +885,7 @@ ccio_free_consistent(struct device *dev, size_t size, void *cpu_addr,
 */
 #define PIDE_FLAG 0x80000000UL
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 #define IOMMU_MAP_STATS
 #endif
 #include "iommu-helpers.h"
@@ -938,7 +929,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	
 	spin_lock_irqsave(&ioc->res_lock, flags);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 	ioc->msg_calls++;
 #endif
 
@@ -997,13 +988,13 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	DBG_RUN_SG("%s() START %d entries,  %08lx,%x\n",
 		__func__, nents, sg_virt_addr(sglist), sglist->length);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 	ioc->usg_calls++;
 #endif
 
 	while(sg_dma_len(sglist) && nents--) {
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 		ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
 #endif
 		ccio_unmap_single(dev, sg_dma_address(sglist),
@@ -1048,7 +1039,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 		len += seq_printf(m, "IO PDIR size    : %d bytes (%d entries)\n",
 			       total_pages * 8, total_pages);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 		len += seq_printf(m, "IO PDIR entries : %ld free  %ld used (%d%%)\n",
 				  total_pages - ioc->used_pages, ioc->used_pages,
 				  (int)(ioc->used_pages * 100 / total_pages));
@@ -1057,7 +1048,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 		len += seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n", 
 				  ioc->res_size, total_pages);
 
-#ifdef CCIO_SEARCH_TIME
+#ifdef CCIO_COLLECT_STATS
 		min = max = ioc->avg_search[0];
 		for(j = 0; j < CCIO_SEARCH_SAMPLE; ++j) {
 			avg += ioc->avg_search[j];
@@ -1070,7 +1061,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 		len += seq_printf(m, "  Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
 				  min, avg, max);
 #endif
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 		len += seq_printf(m, "pci_map_single(): %8ld calls  %8ld pages (avg %d/1000)\n",
 				  ioc->msingle_calls, ioc->msingle_pages,
 				  (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
@@ -1088,7 +1079,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 		len += seq_printf(m, "pci_unmap_sg()  : %8ld calls  %8ld pages (avg %d/1000)\n\n\n",
 				  ioc->usg_calls, ioc->usg_pages,
 				  (int)((ioc->usg_pages * 1000)/ioc->usg_calls));
-#endif	/* CCIO_MAP_STATS */
+#endif	/* CCIO_COLLECT_STATS */
 
 		ioc = ioc->next;
 	}
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From - Thu Nov 08 21:02:17 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [patch] ccio: use the same statistics defines as sba_iommu
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To: Kyle McMartin <kyle@mcmartin.ca>
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On Mon, May 26, 2008 at 01:59:55AM -0400, Kyle McMartin wrote:
> Looks like the difference was hysterical raisins?

I don't remember.
But we can use "COLLECT_STATS" just as well.
Please push this patch if it makes your life easier.

Acked-by: Grant Grundler <grundler@parisc-linux.org>

> Also, was it
> intentional that CCIO_SEARCH_TIME has been on for all this time?

No. I'm pretty sure we want CCIO_SEARCH_TIME disabled.
I disabled this for SBA driver years ago.

thanks,
grant

> index b30e38f..dcc1e99 100644
> --- a/drivers/parisc/ccio-dma.c
> +++ b/drivers/parisc/ccio-dma.c
> @@ -66,15 +66,8 @@
>  #undef DEBUG_CCIO_RUN_SG
>  
>  #ifdef CONFIG_PROC_FS
> -/*
> - * CCIO_SEARCH_TIME can help measure how fast the bitmap search is.
> - * impacts performance though - ditch it if you don't use it.
> - */
> -#define CCIO_SEARCH_TIME
> -#undef CCIO_MAP_STATS
> -#else
> -#undef CCIO_SEARCH_TIME
> -#undef CCIO_MAP_STATS
> +/* depends on proc fs support. But costs CPU performance. */
> +#undef CCIO_COLLECT_STATS
>  #endif
>  
>  #include <linux/proc_fs.h>
> @@ -239,12 +232,10 @@ struct ioc {
>  	u32 res_size;		    	/* size of resource map in bytes */
>  	spinlock_t res_lock;
>  
> -#ifdef CCIO_SEARCH_TIME
> +#ifdef CCIO_COLLECT_STATS
>  #define CCIO_SEARCH_SAMPLE 0x100
>  	unsigned long avg_search[CCIO_SEARCH_SAMPLE];
>  	unsigned long avg_idx;		  /* current index into avg_search */
> -#endif
> -#ifdef CCIO_MAP_STATS
>  	unsigned long used_pages;
>  	unsigned long msingle_calls;
>  	unsigned long msingle_pages;
> @@ -351,7 +342,7 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
>  	unsigned int pages_needed = size >> IOVP_SHIFT;
>  	unsigned int res_idx;
>  	unsigned long boundary_size;
> -#ifdef CCIO_SEARCH_TIME
> +#ifdef CCIO_COLLECT_STATS
>  	unsigned long cr_start = mfctl(16);
>  #endif
>  	
> @@ -406,7 +397,7 @@ resource_found:
>  	DBG_RES("%s() res_idx %d res_hint: %d\n",
>  		__func__, res_idx, ioc->res_hint);
>  
> -#ifdef CCIO_SEARCH_TIME
> +#ifdef CCIO_COLLECT_STATS
>  	{
>  		unsigned long cr_end = mfctl(16);
>  		unsigned long tmp = cr_end - cr_start;
> @@ -416,7 +407,7 @@ resource_found:
>  	ioc->avg_search[ioc->avg_idx++] = cr_start;
>  	ioc->avg_idx &= CCIO_SEARCH_SAMPLE - 1;
>  #endif
> -#ifdef CCIO_MAP_STATS
> +#ifdef CCIO_COLLECT_STATS
>  	ioc->used_pages += pages_needed;
>  #endif
>  	/* 
> @@ -452,7 +443,7 @@ ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped)
>  	DBG_RES("%s():  res_idx: %d pages_mapped %d\n", 
>  		__func__, res_idx, pages_mapped);
>  
> -#ifdef CCIO_MAP_STATS
> +#ifdef CCIO_COLLECT_STATS
>  	ioc->used_pages -= pages_mapped;
>  #endif
>  
> @@ -764,7 +755,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
>  	size = ALIGN(size + offset, IOVP_SIZE);
>  	spin_lock_irqsave(&ioc->res_lock, flags);
>  
> -#ifdef CCIO_MAP_STATS
> +#ifdef CCIO_COLLECT_STATS
>  	ioc->msingle_calls++;
>  	ioc->msingle_pages += size >> IOVP_SHIFT;
>  #endif
> @@ -828,7 +819,7 @@ ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
>  
>  	spin_lock_irqsave(&ioc->res_lock, flags);
>  
> -#ifdef CCIO_MAP_STATS
> +#ifdef CCIO_COLLECT_STATS
>  	ioc->usingle_calls++;
>  	ioc->usingle_pages += size >> IOVP_SHIFT;
>  #endif
> @@ -894,7 +885,7 @@ ccio_free_consistent(struct device *dev, size_t size, void *cpu_addr,
>  */
>  #define PIDE_FLAG 0x80000000UL
>  
> -#ifdef CCIO_MAP_STATS
> +#ifdef CCIO_COLLECT_STATS
>  #define IOMMU_MAP_STATS
>  #endif
>  #include "iommu-helpers.h"
> @@ -938,7 +929,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
>  	
>  	spin_lock_irqsave(&ioc->res_lock, flags);
>  
> -#ifdef CCIO_MAP_STATS
> +#ifdef CCIO_COLLECT_STATS
>  	ioc->msg_calls++;
>  #endif
>  
> @@ -997,13 +988,13 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
>  	DBG_RUN_SG("%s() START %d entries,  %08lx,%x\n",
>  		__func__, nents, sg_virt_addr(sglist), sglist->length);
>  
> -#ifdef CCIO_MAP_STATS
> +#ifdef CCIO_COLLECT_STATS
>  	ioc->usg_calls++;
>  #endif
>  
>  	while(sg_dma_len(sglist) && nents--) {
>  
> -#ifdef CCIO_MAP_STATS
> +#ifdef CCIO_COLLECT_STATS
>  		ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
>  #endif
>  		ccio_unmap_single(dev, sg_dma_address(sglist),
> @@ -1048,7 +1039,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
>  		len += seq_printf(m, "IO PDIR size    : %d bytes (%d entries)\n",
>  			       total_pages * 8, total_pages);
>  
> -#ifdef CCIO_MAP_STATS
> +#ifdef CCIO_COLLECT_STATS
>  		len += seq_printf(m, "IO PDIR entries : %ld free  %ld used (%d%%)\n",
>  				  total_pages - ioc->used_pages, ioc->used_pages,
>  				  (int)(ioc->used_pages * 100 / total_pages));
> @@ -1057,7 +1048,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
>  		len += seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n", 
>  				  ioc->res_size, total_pages);
>  
> -#ifdef CCIO_SEARCH_TIME
> +#ifdef CCIO_COLLECT_STATS
>  		min = max = ioc->avg_search[0];
>  		for(j = 0; j < CCIO_SEARCH_SAMPLE; ++j) {
>  			avg += ioc->avg_search[j];
> @@ -1070,7 +1061,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
>  		len += seq_printf(m, "  Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
>  				  min, avg, max);
>  #endif
> -#ifdef CCIO_MAP_STATS
> +#ifdef CCIO_COLLECT_STATS
>  		len += seq_printf(m, "pci_map_single(): %8ld calls  %8ld pages (avg %d/1000)\n",
>  				  ioc->msingle_calls, ioc->msingle_pages,
>  				  (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
> @@ -1088,7 +1079,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
>  		len += seq_printf(m, "pci_unmap_sg()  : %8ld calls  %8ld pages (avg %d/1000)\n\n\n",
>  				  ioc->usg_calls, ioc->usg_pages,
>  				  (int)((ioc->usg_pages * 1000)/ioc->usg_calls));
> -#endif	/* CCIO_MAP_STATS */
> +#endif	/* CCIO_COLLECT_STATS */
>  
>  		ioc = ioc->next;
>  	}
> --
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From - Thu Nov 08 21:02:17 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [bug] gcc-4.[23] miscompiling causing networking to bugger up
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So I've narrowed the regression down to a miscompilation (presumably) of
net/ipv4/ip_output.o, in the sense that

	cp linux-2.6-gcc34/net/ipv4/ip_output.o
		linux-2.6-gcc43/net/ipv4/ip_output.o
	touch linux-2.6-gcc43/net/ipv4/ip_output.o
	make vmlinux

fixes the issue.

Unfortunately, the file is basically entirely different when
objdump'd...

The generated assembly is not much more help either.

I'm going to try again with gcc 4.1 & 4.2, and hope they're similar
enough that they generate closer assembly fragments...

but, getting closer to a fix, I hope.
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From - Thu Nov 08 21:02:18 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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On Wed, May 28, 2008 at 03:09:46PM -0400, Kyle McMartin wrote:
> So I've narrowed the regression down to a miscompilation (presumably) of
> net/ipv4/ip_output.o, in the sense that
> 
> 	cp linux-2.6-gcc34/net/ipv4/ip_output.o
> 		linux-2.6-gcc43/net/ipv4/ip_output.o
> 	touch linux-2.6-gcc43/net/ipv4/ip_output.o
> 	make vmlinux
> 
> fixes the issue.
> 

Apparently I was on glue and gcc-4.2 is not problematic.
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From - Thu Nov 08 21:02:18 2018
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On Wed, May 28, 2008 at 4:00 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Wed, May 28, 2008 at 03:09:46PM -0400, Kyle McMartin wrote:
>> So I've narrowed the regression down to a miscompilation (presumably) of
>> net/ipv4/ip_output.o, in the sense that
>>
>>       cp linux-2.6-gcc34/net/ipv4/ip_output.o
>>               linux-2.6-gcc43/net/ipv4/ip_output.o
>>       touch linux-2.6-gcc43/net/ipv4/ip_output.o
>>       make vmlinux
>>
>> fixes the issue.
>>
>
> Apparently I was on glue and gcc-4.2 is not problematic.

If you compile ip_output.c with -O0 does it work with gcc-4.3?

Cheers,
Carlos.
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On Wed, May 28, 2008 at 06:55:29PM -0400, Carlos O'Donell wrote:
> On Wed, May 28, 2008 at 4:00 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> > On Wed, May 28, 2008 at 03:09:46PM -0400, Kyle McMartin wrote:
> >> So I've narrowed the regression down to a miscompilation (presumably) of
> >> net/ipv4/ip_output.o, in the sense that
> >>
> >>       cp linux-2.6-gcc34/net/ipv4/ip_output.o
> >>               linux-2.6-gcc43/net/ipv4/ip_output.o
> >>       touch linux-2.6-gcc43/net/ipv4/ip_output.o
> >>       make vmlinux
> >>
> >> fixes the issue.
> >>
> >
> > Apparently I was on glue and gcc-4.2 is not problematic.
> 
> If you compile ip_output.c with -O0 does it work with gcc-4.3?
> 

Building the kernel without optimization is very tetchy... if you can
guess what passes to remove, I can try... one of the optimization
effects that must go is DCE though, otherwise we'll have undefined
references to things (ie: kmalloc_too_much in a switch that should have
been eliminated except the constant case.)

r, Kyle
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Subject: Re: [bug] gcc-4.[23] miscompiling causing networking to bugger up
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On Wed, May 28, 2008 at 7:00 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> Building the kernel without optimization is very tetchy... if you can
> guess what passes to remove, I can try... one of the optimization
> effects that must go is DCE though, otherwise we'll have undefined
> references to things (ie: kmalloc_too_much in a switch that should have
> been eliminated except the constant case.)

You *need* to build the kernel with -fno-dce and -fno-tree-dce?
Are you working around another compiler bug?

Take a look at the attached scripts I use.

./o2list.sh > o2list.txt
./permute-options.sh o2list.txt > run.sh
chmod u+x
run.sh

Normally I can simply run the results on a target and
know which is good and which is bad. Unfortunately
you have to link each into a kernel and try to boot.

Cheers,
Carlos.

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On Wed, May 28, 2008 at 07:37:14PM -0400, Carlos O'Donell wrote:
> On Wed, May 28, 2008 at 7:00 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> > Building the kernel without optimization is very tetchy... if you can
> > guess what passes to remove, I can try... one of the optimization
> > effects that must go is DCE though, otherwise we'll have undefined
> > references to things (ie: kmalloc_too_much in a switch that should have
> > been eliminated except the constant case.)
> 
> You *need* to build the kernel with -fno-dce and -fno-tree-dce?
> Are you working around another compiler bug?
> 
> Take a look at the attached scripts I use.
> 
> ./o2list.sh > o2list.txt
> ./permute-options.sh o2list.txt > run.sh
> chmod u+x
> run.sh
> 
> Normally I can simply run the results on a target and
> know which is good and which is bad. Unfortunately
> you have to link each into a kernel and try to boot.
> 

Other way around... we *need* dce (but apparnetly not on this file)
because of inline constructs like

	switch (sizeof(some constant)) {
	1:
		blah;
	default:
		some_undefined_reference();
	}

Ah well, anyway, it works built at -O0, and buggers up at -O1.

Want a copy of each of the .S?
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> Ah well, anyway, it works built at -O0, and buggers up at -O1.
> 
> Want a copy of each of the .S?

I think it would be useful to know if this is still present in 4.3 branch
head.  Unless we know which routine the problem is in, comparing .s files
is tough.

I'm busy until just before the summit.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Wed, May 28, 2008 at 08:00:58PM -0400, John David Anglin wrote:
> > Ah well, anyway, it works built at -O0, and buggers up at -O1.
> > 
> > Want a copy of each of the .S?
> 
> I think it would be useful to know if this is still present in 4.3 branch
> head.  Unless we know which routine the problem is in, comparing .s files
> is tough.
> 
> I'm busy until just before the summit.
> 

I tried 4.4 from svn a few days (more like 2 weeks maybe) ago. Is that
recent enough or should I try 4.3-head as well (no problem to do.)

r, Kyle
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On Wed, May 28, 2008 at 8:02 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> I tried 4.4 from svn a few days (more like 2 weeks maybe) ago. Is that
> recent enough or should I try 4.3-head as well (no problem to do.)

Yes, please try 4.3-head.

Cheers,
Carlos.
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On Wed, May 28, 2008 at 08:07:00PM -0400, Carlos O'Donell wrote:
> On Wed, May 28, 2008 at 8:02 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> > I tried 4.4 from svn a few days (more like 2 weeks maybe) ago. Is that
> > recent enough or should I try 4.3-head as well (no problem to do.)
> 
> Yes, please try 4.3-head.
> 

Ok, the Debian version is pretty recent though.

kyle@shortfin:~/linux-2.6-gcc42$ hppa64-linux-gnu-gcc-4.3 -v
Using built-in specs.
Target: hppa64-linux-gnu
Configured with: ../src/configure --enable-languages=c --prefix=/usr
--libexecdir=/usr/lib --disable-shared --disable-nls --disable-threads
--disable-libgomp --disable-libmudflap --disable-libssp
--with-as=/usr/bin/hppa64-linux-gnu-as
--with-ld=/usr/bin/hppa64-linux-gnu-ld
--includedir=/usr/hppa64-linux-gnu/include --host=hppa-linux-gnu
--build=hppa-linux-gnu --target=hppa64-linux-gnu
Thread model: single
gcc version 4.3.1 20080523 (prerelease) (GCC) 
kyle@shortfin:~/linux-2.6-gcc42$ 

I'll build my xcompiler using 4.3-HEAD instead of HEAD and we'll see.
(the xcompiler fails the same way, so I'm confident it will be fine
building on my i386... all builds in this thread discussed so far have
been natively built.)

r, kyle
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> I tried 4.4 from svn a few days (more like 2 weeks maybe) ago. Is that
> recent enough or should I try 4.3-head as well (no problem to do.)

4.4 has new bugs.

Dave
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From - Thu Nov 08 21:02:18 2018
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From: rubisher <rubisher@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: 6a4be75aa84b0bea7939bca1af112fb3c2dfd86e make my gcc (still 4.2)
 unhappy ;<(
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To: Kyle McMartin <kyle@mcmartin.ca>, linux-parisc@vger.kernel.org
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Hello Kyle,

This hunk:
+
+/* from pacache.S -- needed for copy_page */
+extern void copy_user_page_asm(void);
+EXPORT_SYMBOL(copy_user_page_asm);

made my 32bit kernel build failing because:
<./include/asm-parisc/page.h>

contains this prototype:

void copy_user_page_asm(void *to, void *from);

I so tried:
+extern void copy_user_page_asm(void *to, void *from);

and it seems to help to build a bootable kernel on my b2k but I ignore if it's the right stuff to do?

Tia,
	r.
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From - Thu Nov 08 21:02:18 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 6a4be75aa84b0bea7939bca1af112fb3c2dfd86e make my gcc (still
	4.2) unhappy ;<(
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To: rubisher <rubisher@scarlet.be>
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On Thu, May 29, 2008 at 05:24:04PM +0000, rubisher wrote:
> Hello Kyle,
>
> This hunk:
> +
> +/* from pacache.S -- needed for copy_page */
> +extern void copy_user_page_asm(void);
> +EXPORT_SYMBOL(copy_user_page_asm);
>

yeah, i know, i've been too busy trying to figure out why gcc 4.3 is
fucked to push a new commit.

i'll do that later today though.

r, kyle
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From - Thu Nov 08 21:02:18 2018
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From: rubisher <rubisher@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 6a4be75aa84b0bea7939bca1af112fb3c2dfd86e make my gcc (still	4.2)
 unhappy ;<(
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Kyle McMartin wrote:
> On Thu, May 29, 2008 at 05:24:04PM +0000, rubisher wrote:
>> Hello Kyle,
>>
>> This hunk:
>> +
>> +/* from pacache.S -- needed for copy_page */
>> +extern void copy_user_page_asm(void);
>> +EXPORT_SYMBOL(copy_user_page_asm);
>>
> 
> yeah, i know,
Oops, sorry.

> i've been too busy trying to figure out why gcc 4.3 is
> fucked to push a new commit.
>
I would so like to be helpfull but haven't anymore enough time for this investigation, sorry.

> i'll do that later today though.
> 
No pb.

Tx,
	r.

> r, kyle
> 
> 

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From - Thu Nov 08 21:02:19 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 6a4be75aa84b0bea7939bca1af112fb3c2dfd86e make my gcc (still
	4.2) unhappy ;<(
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To: rubisher <rubisher@scarlet.be>
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On Thu, May 29, 2008 at 06:17:00PM +0000, rubisher wrote:
> Kyle McMartin wrote:
>> On Thu, May 29, 2008 at 05:24:04PM +0000, rubisher wrote:
>>> Hello Kyle,
>>>
>>> This hunk:
>>> +
>>> +/* from pacache.S -- needed for copy_page */
>>> +extern void copy_user_page_asm(void);
>>> +EXPORT_SYMBOL(copy_user_page_asm);
>>>
>>
>> yeah, i know,
> Oops, sorry.
>
>> i've been too busy trying to figure out why gcc 4.3 is
>> fucked to push a new commit.
>>
> I would so like to be helpfull but haven't anymore enough time for this investigation, sorry.
>

it's ok, i appreciate all the effort you've put in so far :)

cheers, kyle
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From - Thu Nov 08 21:02:19 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [bug] gcc-4.3 miscompiling causing networking to bugger up
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Cc: Kyle McMartin <kyle@mcmartin.ca>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Wed, May 28, 2008 at 08:07:00PM -0400, Carlos O'Donell wrote:
> On Wed, May 28, 2008 at 8:02 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> > I tried 4.4 from svn a few days (more like 2 weeks maybe) ago. Is that
> > recent enough or should I try 4.3-head as well (no problem to do.)
> 
> Yes, please try 4.3-head.
> 

I've found the solution to the bug, it seems something is going wonky
because of ip_fast_csum missing a "memory" clobber.

This should fix it, but I have no idea whether this is a legitimate bug,
or masking a problem with gcc due to too much inlining.

diff --git a/include/asm-parisc/checksum.h b/include/asm-parisc/checksum.h
index cc3ec1b..1916ebe 100644
--- a/include/asm-parisc/checksum.h
+++ b/include/asm-parisc/checksum.h
@@ -65,7 +65,7 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
 "2:\n"
 	: "=r" (sum), "=r" (iph), "=r" (ihl)
 	: "1" (iph), "2" (ihl)
-	: "r19", "r20", "r21" );
+	: "r19", "r20", "r21", "memory" );
 
 	return (__force __sum16)sum;
 }
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From - Thu Nov 08 21:02:19 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [bug] gcc-4.3 miscompiling causing networking to bugger up
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On Sat, May 31, 2008 at 12:10:10AM -0400, Kyle McMartin wrote:
> I've found the solution to the bug, it seems something is going wonky
> because of ip_fast_csum missing a "memory" clobber.
> 
> This should fix it, but I have no idea whether this is a legitimate bug,
> or masking a problem with gcc due to too much inlining.

*veeery* interesting.  It's entirely possible that this is the correct
fix:

 If your assembler instructions access memory in an unpredictable
 fashion, add `memory' to the list of clobbered registers.  This will
 cause GCC to not keep memory values cached in registers across the
 assembler instruction and not optimize stores or loads to that memory.

So if GCC has something in a register, it might not bother to write it
back to ram before this asm if we don't have the memory clobber.

Fantastic work, Kyle.  Thanks for spending so much time on this.

> diff --git a/include/asm-parisc/checksum.h b/include/asm-parisc/checksum.h
> index cc3ec1b..1916ebe 100644
> --- a/include/asm-parisc/checksum.h
> +++ b/include/asm-parisc/checksum.h
> @@ -65,7 +65,7 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
>  "2:\n"
>  	: "=r" (sum), "=r" (iph), "=r" (ihl)
>  	: "1" (iph), "2" (ihl)
> -	: "r19", "r20", "r21" );
> +	: "r19", "r20", "r21", "memory" );
>  
>  	return (__force __sum16)sum;
>  }
> --
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> the body of a message to majordomo@vger.kernel.org
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: [bug] gcc-4.3 miscompiling causing networking to bugger up
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On Sat, May 31, 2008 at 12:10 AM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> I've found the solution to the bug, it seems something is going wonky
> because of ip_fast_csum missing a "memory" clobber.

Great news!

The asm does advance the iph pointer, and reads the header data
without telling gcc. The input/output operands only state the pointer
may be read and modified not the memory at the pointer.

The compiler may have cached iph writes in registers and they may not
be in memory yet. Under normal circumstances I would say "Add a memory
input operand for the header data e.g. "m" (*header_struct_pointer)",
but the relationship with ihl and iph is not known the compiler. In
this case it is probably correct to use the "memory" clobber as a
catch all.

Cheers,
Carlos.
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From - Thu Nov 08 21:02:19 2018
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From: Krzysztof Helt <krzysztof.h1@poczta.fm>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.fbdev.devel
Subject: [PATCH] convert sticore.c to PCI ROM API (bugzilla #9425)
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From: Krzysztof Helt <krzysztof.h1@wp.pl>

Convert console/sticore.c file to use PCI ROM API.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>

---
I don't have cross-compiler nor the hardware so PARISC guys
please test it.

diff -urp linux-2.6.25/drivers/video/console/sticore.c linux-new/drivers/video/console/sticore.c
--- linux-2.6.25/drivers/video/console/sticore.c	2008-04-17 04:49:44.000000000 +0200
+++ linux-new/drivers/video/console/sticore.c	2008-05-31 14:47:14.794107818 +0200
@@ -780,7 +780,8 @@ out_err:
 }
 
 static struct sti_struct * __devinit
-sti_try_rom_generic(unsigned long address, unsigned long hpa, struct pci_dev *pd)
+sti_try_rom_generic(char __iomem *address, unsigned long hpa,
+		    struct pci_dev *pd)
 {
 	struct sti_struct *sti;
 	int ok;
@@ -868,10 +869,8 @@ test_rom:
 	/* disable STI PCI ROM. ROM and card RAM overlap and
 	 * leaving it enabled would force HPMCs
 	 */
-	if (sti->pd) {
-		unsigned long rom_base;
-		rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);	
-		pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
+	if (sti->pd && rom_base) {
+		pci_unmap_rom(sti->pd, rom_base);
 		DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n"));
 	}
 
@@ -930,22 +929,22 @@ static int __devinit sticore_pci_init(st
 		const struct pci_device_id *ent)
 {
 #ifdef CONFIG_PCI
-	unsigned long fb_base, rom_base;
-	unsigned int fb_len, rom_len;
+	unsigned long fb_base;
+	unsigned int fb_len;
+	char __iomem *rom_base;
+	size_t rom_len;
 	struct sti_struct *sti;
 	
 	pci_enable_device(pd);
 
 	fb_base = pci_resource_start(pd, 0);
 	fb_len = pci_resource_len(pd, 0);
-	rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
-	rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
+	rom_base = pci_map_rom(pd, &rom_len);
 	if (rom_base) {
-		pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
-		DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
+		DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%p\n", rom_base));
 	}
 
-	printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
+	printk(KERN_INFO "STI PCI graphic ROM found at %p (%u kB), fb at %08lx (%u MB)\n",
 		rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
 
 	DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",



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From - Thu Nov 08 21:02:19 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.fbdev.devel
Subject: Re: [PATCH] convert sticore.c to PCI ROM API (bugzilla #9425)
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Hello Krzysztof,

On Saturday 31 May 2008, Krzysztof Helt wrote:
> From: Krzysztof Helt <krzysztof.h1@wp.pl>
> 
> Convert console/sticore.c file to use PCI ROM API.
> 
> Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
> 
> ---
> I don't have cross-compiler nor the hardware so PARISC guys
> please test it.
> [...]

Thanks for the patch.
Below is the fixed version for parisc.
Compile- and run-tested by me.
Please apply.

Helge
------------------------

Convert console/sticore.c file to use PCI ROM API.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index e9ab657..df30499 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -780,11 +780,13 @@ out_err:
 }
 
 static struct sti_struct * __devinit
-sti_try_rom_generic(unsigned long address, unsigned long hpa, struct pci_dev *pd)
+sti_try_rom_generic(unsigned long address, unsigned long hpa,
+		    struct pci_dev *pd)
 {
+	char __iomem *rom_base = (char __iomem *) address;
 	struct sti_struct *sti;
 	int ok;
-	u32 sig;
+	__le32 sig;
 
 	if (num_sti_roms >= MAX_STI_ROMS) {
 		printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
@@ -808,7 +810,7 @@ test_rom:
 	sig = gsc_readl(address);
 
 	/* check for a PCI ROM structure */
-	if ((le32_to_cpu(sig)==0xaa55)) {
+	if (sig == cpu_to_le32(0xaa55)) {
 		unsigned int i, rm_offset;
 		u32 *rm;
 		i = gsc_readl(address+0x04);
@@ -868,10 +870,8 @@ test_rom:
 	/* disable STI PCI ROM. ROM and card RAM overlap and
 	 * leaving it enabled would force HPMCs
 	 */
-	if (sti->pd) {
-		unsigned long rom_base;
-		rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);	
-		pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
+	if (sti->pd && rom_base) {
+		pci_unmap_rom(sti->pd, rom_base);
 		DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n"));
 	}
 
@@ -930,28 +930,25 @@ static int __devinit sticore_pci_init(struct pci_dev *pd,
 		const struct pci_device_id *ent)
 {
 #ifdef CONFIG_PCI
-	unsigned long fb_base, rom_base;
-	unsigned int fb_len, rom_len;
+	unsigned long fb_base;
+	unsigned int fb_len;
+	char __iomem *rom_base;
+	size_t rom_len;
 	struct sti_struct *sti;
 	
 	pci_enable_device(pd);
 
 	fb_base = pci_resource_start(pd, 0);
 	fb_len = pci_resource_len(pd, 0);
-	rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
-	rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
-	if (rom_base) {
-		pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
-		DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
-	}
+	rom_base = pci_map_rom(pd, &rom_len);
 
-	printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
+	printk(KERN_INFO "STI PCI graphic ROM found at %p (%u kB), fb at %08lx (%u MB)\n",
 		rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
 
-	DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
+	DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %p, PCI hpa at %08lx\n",
 		    rom_base, fb_base));
 
-	sti = sti_try_rom_generic(rom_base, fb_base, pd);
+	sti = sti_try_rom_generic((unsigned long)rom_base, fb_base, pd);
 	if (sti) {
 		char pa_path[30];
 		print_pci_hwpath(pd, pa_path);
@@ -975,7 +972,7 @@ static void __devexit sticore_pci_remove(struct pci_dev *pd)
 }
 
 
-static struct pci_device_id sti_pci_tbl[] = {
+DEFINE_PCI_DEVICE_TABLE(sti_pci_tbl) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
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From - Thu Nov 08 21:02:19 2018
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From: Krzysztof Helt <krzysztof.h1@poczta.fm>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.fbdev.devel
Subject: Re: [PATCH] convert sticore.c to PCI ROM API (bugzilla #9425)
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To: Helge Deller <deller@gmx.de>
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On Sun, 1 Jun 2008 00:22:23 +0200
Helge Deller <deller@gmx.de> wrote:

> Hello Krzysztof,
> 
> On Saturday 31 May 2008, Krzysztof Helt wrote:
> > From: Krzysztof Helt <krzysztof.h1@wp.pl>
> > 
> > Convert console/sticore.c file to use PCI ROM API.
> > 
> > Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
> > 
> > ---
> > I don't have cross-compiler nor the hardware so PARISC guys
> > please test it.
> > [...]
> 
> Thanks for the patch.
> Below is the fixed version for parisc.
> Compile- and run-tested by me.
> Please apply.
> 

Thank you for testing. I have only one question. Why does the address
parameter to the sti_try_rom_generic() is unsigned long and not (char __iomem *)?
It would simplify the code (two type casts removed). Now, I see that I have made
an error in the patch that no rom_base variable has been defined in 
the sti_try_rom_generic(). My intention was to use the address parameter directly.
Is this ok (change the parameter type) on parisc linux?

Kind regards,
Krzysztof

> Helge
> ------------------------
> 
> Convert console/sticore.c file to use PCI ROM API.
> 
> Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
> index e9ab657..df30499 100644
> --- a/drivers/video/console/sticore.c
> +++ b/drivers/video/console/sticore.c
> @@ -780,11 +780,13 @@ out_err:
>  }
>  
>  static struct sti_struct * __devinit
> -sti_try_rom_generic(unsigned long address, unsigned long hpa, struct pci_dev *pd)
> +sti_try_rom_generic(unsigned long address, unsigned long hpa,
> +		    struct pci_dev *pd)
>  {
> +	char __iomem *rom_base = (char __iomem *) address;
>  	struct sti_struct *sti;
>  	int ok;
> -	u32 sig;
> +	__le32 sig;
>  
>  	if (num_sti_roms >= MAX_STI_ROMS) {
>  		printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
> @@ -808,7 +810,7 @@ test_rom:
>  	sig = gsc_readl(address);
>  
>  	/* check for a PCI ROM structure */
> -	if ((le32_to_cpu(sig)==0xaa55)) {
> +	if (sig == cpu_to_le32(0xaa55)) {
>  		unsigned int i, rm_offset;
>  		u32 *rm;
>  		i = gsc_readl(address+0x04);
> @@ -868,10 +870,8 @@ test_rom:
>  	/* disable STI PCI ROM. ROM and card RAM overlap and
>  	 * leaving it enabled would force HPMCs
>  	 */
> -	if (sti->pd) {
> -		unsigned long rom_base;
> -		rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);	
> -		pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
> +	if (sti->pd && rom_base) {
> +		pci_unmap_rom(sti->pd, rom_base);
>  		DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n"));
>  	}
>  
> @@ -930,28 +930,25 @@ static int __devinit sticore_pci_init(struct pci_dev *pd,
>  		const struct pci_device_id *ent)
>  {
>  #ifdef CONFIG_PCI
> -	unsigned long fb_base, rom_base;
> -	unsigned int fb_len, rom_len;
> +	unsigned long fb_base;
> +	unsigned int fb_len;
> +	char __iomem *rom_base;
> +	size_t rom_len;
>  	struct sti_struct *sti;
>  	
>  	pci_enable_device(pd);
>  
>  	fb_base = pci_resource_start(pd, 0);
>  	fb_len = pci_resource_len(pd, 0);
> -	rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
> -	rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
> -	if (rom_base) {
> -		pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
> -		DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
> -	}
> +	rom_base = pci_map_rom(pd, &rom_len);
>  
> -	printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
> +	printk(KERN_INFO "STI PCI graphic ROM found at %p (%u kB), fb at %08lx (%u MB)\n",
>  		rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
>  
> -	DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
> +	DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %p, PCI hpa at %08lx\n",
>  		    rom_base, fb_base));
>  
> -	sti = sti_try_rom_generic(rom_base, fb_base, pd);
> +	sti = sti_try_rom_generic((unsigned long)rom_base, fb_base, pd);
>  	if (sti) {
>  		char pa_path[30];
>  		print_pci_hwpath(pd, pa_path);
> @@ -975,7 +972,7 @@ static void __devexit sticore_pci_remove(struct pci_dev *pd)
>  }
>  
>  
> -static struct pci_device_id sti_pci_tbl[] = {
> +DEFINE_PCI_DEVICE_TABLE(sti_pci_tbl) = {
>  	{ PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
>  	{ PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
>  	{ PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
> 


----------------------------------------------------------------------
Mucha powraca!
Sprawdz >>> http://link.interia.pl/f1e0d

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From - Thu Nov 08 21:02:19 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
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	linux-parisc@vger.kernel.org
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On Sat, May 31, 2008 at 04:58:58AM -0600, Matthew Wilcox wrote:
...
> So if GCC has something in a register, it might not bother to write it
> back to ram before this asm if we don't have the memory clobber.

Willy, thanks for explaining...I had to reread this a few times to
"get it". This would also explain why we saw it on ip_output where
the ipv4 header was being written.

> Fantastic work, Kyle.  Thanks for spending so much time on this.

Agreed. I owe you a bar of chocolate.

> > diff --git a/include/asm-parisc/checksum.h b/include/asm-parisc/checksum.h
> > index cc3ec1b..1916ebe 100644
> > --- a/include/asm-parisc/checksum.h
> > +++ b/include/asm-parisc/checksum.h
> > @@ -65,7 +65,7 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
> >  "2:\n"
> >  	: "=r" (sum), "=r" (iph), "=r" (ihl)
> >  	: "1" (iph), "2" (ihl)
> > -	: "r19", "r20", "r21" );
> > +	: "r19", "r20", "r21", "memory" );
> >  
> >  	return (__force __sum16)sum;
> >  }

Does csum_ipv6_magic() also need the same treatment?

Kyle suspects csum_ipv6_magic() might be ok because it's passing
in a "struct ipv6_addr *".  If that's correct, maybe we should ask
davem/et al to change ip_fast_csum() to take "struct iphdr *" as well?

thanks,
grant
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On Sun, 1 Jun 2008 01:01:55 +0200
Krzysztof Helt <krzysztof.h1@poczta.fm> wrote:

> On Sun, 1 Jun 2008 00:22:23 +0200
> Helge Deller <deller@gmx.de> wrote:
> 
>> Thanks for the patch.
>> Below is the fixed version for parisc.
>> Compile- and run-tested by me.
>> Please apply.
> 
> Thank you for testing. I have only one question. Why does the address
> parameter to the sti_try_rom_generic() is unsigned long and not (char __iomem *)?
> It would simplify the code (two type casts removed). Now, I see that I have made
> an error in the patch that no rom_base variable has been defined in 
> the sti_try_rom_generic(). My intention was to use the address parameter directly.
> Is this ok (change the parameter type) on parisc linux?
> 

It was late night when I answered. I see it now - one uses gsc_readl function
on the address so one needs the address represented as unsigned long (or casted).

Your patch is 100% correct (copied without changes below).

Regards,
Krzysztof

------------------------

Convert console/sticore.c file to use PCI ROM API.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index e9ab657..df30499 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -780,11 +780,13 @@ out_err:
 }
 
 static struct sti_struct * __devinit
-sti_try_rom_generic(unsigned long address, unsigned long hpa, struct pci_dev *pd)
+sti_try_rom_generic(unsigned long address, unsigned long hpa,
+		    struct pci_dev *pd)
 {
+	char __iomem *rom_base = (char __iomem *) address;
 	struct sti_struct *sti;
 	int ok;
-	u32 sig;
+	__le32 sig;
 
 	if (num_sti_roms >= MAX_STI_ROMS) {
 		printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
@@ -808,7 +810,7 @@ test_rom:
 	sig = gsc_readl(address);
 
 	/* check for a PCI ROM structure */
-	if ((le32_to_cpu(sig)==0xaa55)) {
+	if (sig == cpu_to_le32(0xaa55)) {
 		unsigned int i, rm_offset;
 		u32 *rm;
 		i = gsc_readl(address+0x04);
@@ -868,10 +870,8 @@ test_rom:
 	/* disable STI PCI ROM. ROM and card RAM overlap and
 	 * leaving it enabled would force HPMCs
 	 */
-	if (sti->pd) {
-		unsigned long rom_base;
-		rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);	
-		pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
+	if (sti->pd && rom_base) {
+		pci_unmap_rom(sti->pd, rom_base);
 		DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n"));
 	}
 
@@ -930,28 +930,25 @@ static int __devinit sticore_pci_init(struct pci_dev *pd,
 		const struct pci_device_id *ent)
 {
 #ifdef CONFIG_PCI
-	unsigned long fb_base, rom_base;
-	unsigned int fb_len, rom_len;
+	unsigned long fb_base;
+	unsigned int fb_len;
+	char __iomem *rom_base;
+	size_t rom_len;
 	struct sti_struct *sti;
 	
 	pci_enable_device(pd);
 
 	fb_base = pci_resource_start(pd, 0);
 	fb_len = pci_resource_len(pd, 0);
-	rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
-	rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
-	if (rom_base) {
-		pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
-		DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
-	}
+	rom_base = pci_map_rom(pd, &rom_len);
 
-	printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
+	printk(KERN_INFO "STI PCI graphic ROM found at %p (%u kB), fb at %08lx (%u MB)\n",
 		rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
 
-	DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
+	DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %p, PCI hpa at %08lx\n",
 		    rom_base, fb_base));
 
-	sti = sti_try_rom_generic(rom_base, fb_base, pd);
+	sti = sti_try_rom_generic((unsigned long)rom_base, fb_base, pd);
 	if (sti) {
 		char pa_path[30];
 		print_pci_hwpath(pd, pa_path);
@@ -975,7 +972,7 @@ static void __devexit sticore_pci_remove(struct pci_dev *pd)
 }
 
 
-static struct pci_device_id sti_pci_tbl[] = {
+DEFINE_PCI_DEVICE_TABLE(sti_pci_tbl) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },



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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: parisc: add barriers to mmio accessors
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Prevents GCC from reordering mmio accesses with regular memory
accesses.

They're in assembly since I felt like maybe using the strongly
ordered completer on the instructions, so they would be more obvious
in disassembly. (Yes, I know there's no weakly ordered PA
implementation...)


diff --git a/include/asm-parisc/io.h b/include/asm-parisc/io.h
index 55ddb18..e5ce0a9 100644
--- a/include/asm-parisc/io.h
+++ b/include/asm-parisc/io.h
@@ -148,36 +148,82 @@ extern void iounmap(const volatile void __iomem *addr);
 
 static inline unsigned char __raw_readb(const volatile void __iomem *addr)
 {
-	return (*(volatile unsigned char __force *) (addr));
+	unsigned char c;
+	asm volatile(
+	"	ldb	0(%0), %1\n"
+	: : "r"(addr), "r"(c) : "memory");
+	return c;
 }
+
 static inline unsigned short __raw_readw(const volatile void __iomem *addr)
 {
-	return *(volatile unsigned short __force *) addr;
+	unsigned short s;
+	asm volatile(
+	"	lds	0(%0), %1\n"
+	: : "r"(addr), "r"(s) : "memory");
+	return s;
 }
+
 static inline unsigned int __raw_readl(const volatile void __iomem *addr)
 {
-	return *(volatile unsigned int __force *) addr;
+	unsigned int i;
+	asm volatile(
+	"	ldw	0(%0), %1\n"
+	: : "r"(addr), "r"(i) : "memory");
+	return i;
 }
+
 static inline unsigned long long __raw_readq(const volatile void __iomem *addr)
 {
-	return *(volatile unsigned long long __force *) addr;
+	unsigned long long q;
+
+#ifdef CONFIG_64BIT
+	asm volatile(
+	"	ldq	0(%0), %1\n"
+	: : "r"(addr), "r"(q) : "memory");
+#else
+	unsigned int q_lo, q_hi;
+	q_hi = __raw_readl(addr);
+	q_lo = __raw_readl(addr+4);
+	q = (unsigned long long)(q_hi << 32) | (q_lo);
+#endif
+
+	return q;
 }
 
-static inline void __raw_writeb(unsigned char b, volatile void __iomem *addr)
+static inline void __raw_writeb(unsigned char c, volatile void __iomem *addr)
 {
-	*(volatile unsigned char __force *) addr = b;
+	asm volatile(
+	"	stb	%1, 0(%0)\n"
+	: : "r"(addr), "r"(c) : "memory");
 }
-static inline void __raw_writew(unsigned short b, volatile void __iomem *addr)
+
+static inline void __raw_writew(unsigned short s, volatile void __iomem *addr)
 {
-	*(volatile unsigned short __force *) addr = b;
+	asm volatile(
+	"	sts	%1, 0(%0)\n"
+	: : "r"(addr), "r"(s) : "memory");
 }
-static inline void __raw_writel(unsigned int b, volatile void __iomem *addr)
+
+static inline void __raw_writel(unsigned int i, volatile void __iomem *addr)
 {
-	*(volatile unsigned int __force *) addr = b;
+	asm volatile(
+	"	stw	%1, 0(%0)\n"
+	: : "r"(addr), "r"(i) : "memory");
 }
-static inline void __raw_writeq(unsigned long long b, volatile void __iomem *addr)
+
+static inline void __raw_writeq(unsigned long long q, volatile void __iomem *addr)
 {
-	*(volatile unsigned long long __force *) addr = b;
+#ifdef CONFIG_64BIT
+	asm volatile(
+	"	stq	%1, 0(%0)\n"
+	: : "r"(addr), "r"(q) : "memory");
+#else
+	unsigned int q_hi = (q >> 32) & ~0UL;
+	unsigned int q_lo = (q) & ~0UL;
+	__raw_writel(q_hi, addr);
+	__raw_writel(q_lo, addr+4);
+#endif
 }
 
 /* readb can never be const, so use __fswab instead of le*_to_cpu */
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On Tue, Jun 3, 2008 at 1:42 AM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> Prevents GCC from reordering mmio accesses with regular memory
> accesses.
>
> They're in assembly since I felt like maybe using the strongly
> ordered completer on the instructions, so they would be more obvious
> in disassembly. (Yes, I know there's no weakly ordered PA
> implementation...)
> +#ifdef CONFIG_64BIT
> +       asm volatile(
> +       "       ldq     0(%0), %1\n"
> +       : : "r"(addr), "r"(q) : "memory");
> +#else
> +       unsigned int q_lo, q_hi;
> +       q_hi = __raw_readl(addr);
> +       q_lo = __raw_readl(addr+4);
> +       q = (unsigned long long)(q_hi << 32) | (q_lo);
> +#endif
> +
> +       return q;

Is there any reason the 32-bit version is uses plain C?

Cheers,
Carlos.
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On Tue, Jun 3, 2008 at 8:22 AM, Carlos O'Donell <carlos@systemhalted.org> wrote:
>> +#ifdef CONFIG_64BIT
>> +       asm volatile(
>> +       "       ldq     0(%0), %1\n"
>> +       : : "r"(addr), "r"(q) : "memory");
>> +#else
>> +       unsigned int q_lo, q_hi;
>> +       q_hi = __raw_readl(addr);
>> +       q_lo = __raw_readl(addr+4);
>> +       q = (unsigned long long)(q_hi << 32) | (q_lo);
>> +#endif
>> +
>> +       return q;
>
> Is there any reason the 32-bit version is uses plain C?

I see, you optimized this for the 64-bit case, that makes sense. I
should drink more coffee.

Cheers,
Carlos.
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: parisc: add barriers to mmio accessors
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On Tue, Jun 03, 2008 at 01:42:12AM -0400, Kyle McMartin wrote:
> +#ifdef CONFIG_64BIT
> +	asm volatile(
> +	"	ldq	0(%0), %1\n"
> +	: : "r"(addr), "r"(q) : "memory");
> +#else
> +	unsigned int q_lo, q_hi;
> +	q_hi = __raw_readl(addr);
> +	q_lo = __raw_readl(addr+4);
> +	q = (unsigned long long)(q_hi << 32) | (q_lo);
> +#endif

Are you sure this is correct?  Seems to me it should be:

	q = ((unsigned long long)q_hi << 32) | q_lo;

I would have thought GCC would complain about a shift exceeding the
width of the type.

> +static inline void __raw_writeq(unsigned long long q, volatile void __iomem *addr)
>  {
> -	*(volatile unsigned long long __force *) addr = b;
> +#ifdef CONFIG_64BIT
> +	asm volatile(
> +	"	stq	%1, 0(%0)\n"
> +	: : "r"(addr), "r"(q) : "memory");
> +#else
> +	unsigned int q_hi = (q >> 32) & ~0UL;
> +	unsigned int q_lo = (q) & ~0UL;
> +	__raw_writel(q_hi, addr);
> +	__raw_writel(q_lo, addr+4);
> +#endif

It feels a little funny to be masking with UL when assigning to an
unsigned int.  I'd personally use 0xffffffff or ~0U or nothing at all
since it'll be truncated anyway.  (I recognise the value of saying "I do
intend to truncate this value" explicitly though.)

A third thing is that you're doing this to the __raw_ variants which
don't have to be serialised.  How about we keep the current definitions of
__raw_readX/__raw_writeX, define the regular readX/writeX to be the inline
assembler you've just posted, and add new defines of __readX/__writeX
as byteswapping versions of __raw_readX/__raw_writeX?

[For those who aren't on linux-arch, there's just been a long thread
about the semantics of the different accessors and the above reflects my
understanding of that thread.]

Should we add memory clobbers to gsc_readX/gsc_writeX?

-- 
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"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
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On Tue, Jun 03, 2008 at 06:42:29AM -0600, Matthew Wilcox wrote:
> Are you sure this is correct?  Seems to me it should be:
> 
> 	q = ((unsigned long long)q_hi << 32) | q_lo;
> 
> I would have thought GCC would complain about a shift exceeding the
> width of the type.
> 

I probably fat fingered the braces.

> A third thing is that you're doing this to the __raw_ variants which
> don't have to be serialised.  How about we keep the current definitions of
> __raw_readX/__raw_writeX, define the regular readX/writeX to be the inline
> assembler you've just posted, and add new defines of __readX/__writeX
> as byteswapping versions of __raw_readX/__raw_writeX?
> 

I was just going to define them all in terms of this... since, well,
performance is mostly irrelevant.

> [For those who aren't on linux-arch, there's just been a long thread
> about the semantics of the different accessors and the above reflects my
> understanding of that thread.]
> 
> Should we add memory clobbers to gsc_readX/gsc_writeX?
> 

Yeah, I think so (although, I really hope GCC won't reorder serializing
instructions like rsm/ssm. ;-)

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Subject: [RESEND] [PATCH] convert sticore.c to PCI ROM
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From: Krzysztof Helt <krzysztof.h1@wp.pl>

Convert console/sticore.c file to use PCI ROM API.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=9425

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Helge Deller <deller@gmx.de>

---
This patch was fixed and tested by Helge Deller on his
PARISC machine.


diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index e9ab657..df30499 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -780,11 +780,13 @@ out_err:
 }
 
 static struct sti_struct * __devinit
-sti_try_rom_generic(unsigned long address, unsigned long hpa, struct pci_dev *pd)
+sti_try_rom_generic(unsigned long address, unsigned long hpa,
+		    struct pci_dev *pd)
 {
+	char __iomem *rom_base = (char __iomem *) address;
 	struct sti_struct *sti;
 	int ok;
-	u32 sig;
+	__le32 sig;
 
 	if (num_sti_roms >= MAX_STI_ROMS) {
 		printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
@@ -808,7 +810,7 @@ test_rom:
 	sig = gsc_readl(address);
 
 	/* check for a PCI ROM structure */
-	if ((le32_to_cpu(sig)==0xaa55)) {
+	if (sig == cpu_to_le32(0xaa55)) {
 		unsigned int i, rm_offset;
 		u32 *rm;
 		i = gsc_readl(address+0x04);
@@ -868,10 +870,8 @@ test_rom:
 	/* disable STI PCI ROM. ROM and card RAM overlap and
 	 * leaving it enabled would force HPMCs
 	 */
-	if (sti->pd) {
-		unsigned long rom_base;
-		rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);	
-		pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
+	if (sti->pd && rom_base) {
+		pci_unmap_rom(sti->pd, rom_base);
 		DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n"));
 	}
 
@@ -930,28 +930,25 @@ static int __devinit sticore_pci_init(struct pci_dev *pd,
 		const struct pci_device_id *ent)
 {
 #ifdef CONFIG_PCI
-	unsigned long fb_base, rom_base;
-	unsigned int fb_len, rom_len;
+	unsigned long fb_base;
+	unsigned int fb_len;
+	char __iomem *rom_base;
+	size_t rom_len;
 	struct sti_struct *sti;
 	
 	pci_enable_device(pd);
 
 	fb_base = pci_resource_start(pd, 0);
 	fb_len = pci_resource_len(pd, 0);
-	rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
-	rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
-	if (rom_base) {
-		pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
-		DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
-	}
+	rom_base = pci_map_rom(pd, &rom_len);
 
-	printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
+	printk(KERN_INFO "STI PCI graphic ROM found at %p (%u kB), fb at %08lx (%u MB)\n",
 		rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
 
-	DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
+	DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %p, PCI hpa at %08lx\n",
 		    rom_base, fb_base));
 
-	sti = sti_try_rom_generic(rom_base, fb_base, pd);
+	sti = sti_try_rom_generic((unsigned long)rom_base, fb_base, pd);
 	if (sti) {
 		char pa_path[30];
 		print_pci_hwpath(pd, pa_path);
@@ -975,7 +972,7 @@ static void __devexit sticore_pci_remove(struct pci_dev *pd)
 }
 
 
-static struct pci_device_id sti_pci_tbl[] = {
+DEFINE_PCI_DEVICE_TABLE(sti_pci_tbl) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },




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On Thu, 5 Jun 2008 23:13:27 +0200
Krzysztof Helt <krzysztof.h1@poczta.fm> wrote:

> From: Krzysztof Helt <krzysztof.h1@wp.pl>
> 
> Convert console/sticore.c file to use PCI ROM API.
> 
> Addresses http://bugzilla.kernel.org/show_bug.cgi?id=9425

I'm unable to understand that bug report.  Is this just a cleanup
or does it fix some runtime error, or...?

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On Thu, 2008-06-05 at 23:13 +0200, Krzysztof Helt wrote:
> From: Krzysztof Helt <krzysztof.h1@wp.pl>
> 
> Convert console/sticore.c file to use PCI ROM API.
> 
> Addresses http://bugzilla.kernel.org/show_bug.cgi?id=9425
> 
> Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> ---
> This patch was fixed and tested by Helge Deller on his
> PARISC machine.
> 
> 
> diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
> index e9ab657..df30499 100644
> --- a/drivers/video/console/sticore.c
> +++ b/drivers/video/console/sticore.c
> @@ -780,11 +780,13 @@ out_err:
>  }
>  
>  static struct sti_struct * __devinit
> -sti_try_rom_generic(unsigned long address, unsigned long hpa, struct pci_dev *pd)
> +sti_try_rom_generic(unsigned long address, unsigned long hpa,
> +		    struct pci_dev *pd)
>  {
> +	char __iomem *rom_base = (char __iomem *) address;
>  	struct sti_struct *sti;
>  	int ok;
> -	u32 sig;
> +	__le32 sig;
>  
>  	if (num_sti_roms >= MAX_STI_ROMS) {
>  		printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
> @@ -808,7 +810,7 @@ test_rom:
>  	sig = gsc_readl(address);

Since gsc_readl() has (designedly) no endianness type, doesn't this give
a sparse warning?
 
>  	/* check for a PCI ROM structure */
> -	if ((le32_to_cpu(sig)==0xaa55)) {
> +	if (sig == cpu_to_le32(0xaa55)) {
>  		unsigned int i, rm_offset;
>  		u32 *rm;
>  		i = gsc_readl(address+0x04);
> @@ -868,10 +870,8 @@ test_rom:
>  	/* disable STI PCI ROM. ROM and card RAM overlap and
>  	 * leaving it enabled would force HPMCs
>  	 */
> -	if (sti->pd) {
> -		unsigned long rom_base;
> -		rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);	
> -		pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
> +	if (sti->pd && rom_base) {
> +		pci_unmap_rom(sti->pd, rom_base);
>  		DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n"));
>  	}
>  
> @@ -930,28 +930,25 @@ static int __devinit sticore_pci_init(struct pci_dev *pd,
>  		const struct pci_device_id *ent)
>  {
>  #ifdef CONFIG_PCI
> -	unsigned long fb_base, rom_base;
> -	unsigned int fb_len, rom_len;
> +	unsigned long fb_base;
> +	unsigned int fb_len;
> +	char __iomem *rom_base;
> +	size_t rom_len;
>  	struct sti_struct *sti;
>  	
>  	pci_enable_device(pd);
>  
>  	fb_base = pci_resource_start(pd, 0);
>  	fb_len = pci_resource_len(pd, 0);
> -	rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
> -	rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
> -	if (rom_base) {
> -		pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
> -		DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
> -	}
> +	rom_base = pci_map_rom(pd, &rom_len);

I'm really not sure this is such a good idea.  pci_map_rom() can do an
ioremap() on the region.  In that case, gsc_readl which punches through
our virtual memory into physical I/O space will fail.  What assurance do
we have that all STI roms are correctly set up so pci_map_rom() isn't
inclined to ioremap them?

James


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On Thu, 5 Jun 2008 15:11:22 -0700
Andrew Morton <akpm@linux-foundation.org> wrote:

> On Thu, 5 Jun 2008 23:13:27 +0200
> Krzysztof Helt <krzysztof.h1@poczta.fm> wrote:
> 
> > From: Krzysztof Helt <krzysztof.h1@wp.pl>
> > 
> > Convert console/sticore.c file to use PCI ROM API.
> > 
> > Addresses http://bugzilla.kernel.org/show_bug.cgi?id=9425
> 
> I'm unable to understand that bug report.  Is this just a cleanup
> or does it fix some runtime error, or...?
> 

It is conversion to a new API after the API was introduced (code change/cleanup).

AFAIK, it does not fix any known error.

Regards,
Krzysztof

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On Thu, 05 Jun 2008 17:26:54 -0500
James Bottomley <James.Bottomley@HansenPartnership.com> wrote:

> 
> I'm really not sure this is such a good idea.  pci_map_rom() can do an
> ioremap() on the region.  In that case, gsc_readl which punches through
> our virtual memory into physical I/O space will fail.  What assurance do
> we have that all STI roms are correctly set up so pci_map_rom() isn't
> inclined to ioremap them?
> 

I haven't thought about this. The ROM the Helge tested was obviously
set up correctly, otherwise reading the ROM signature would be impossible.

What is you advise for this patch James?

Regards,
Krzysztof

---------------------------------------------------------------
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Kliknij >> http://link.interia.pl/f1e26

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From - Thu Nov 08 21:02:20 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.fbdev.devel
Subject: Re: [RESEND] [PATCH] convert sticore.c to PCI ROM API
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James Bottomley wrote:
>>  static struct sti_struct * __devinit
>> -sti_try_rom_generic(unsigned long address, unsigned long hpa, struct pci_dev *pd)
>> +sti_try_rom_generic(unsigned long address, unsigned long hpa,
>> +		    struct pci_dev *pd)
>>  {
>> +	char __iomem *rom_base = (char __iomem *) address;
>>  	struct sti_struct *sti;
>>  	int ok;
>> -	u32 sig;
>> +	__le32 sig;
>>  
>>  	if (num_sti_roms >= MAX_STI_ROMS) {
>>  		printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
>> @@ -808,7 +810,7 @@ test_rom:
>>  	sig = gsc_readl(address);
> 
> Since gsc_readl() has (designedly) no endianness type, doesn't this give
> a sparse warning?

No, it doesn't.
But maybe I tested it wrongly?

[hd@p100 linus-linux-2.6]# REAL_CC=hppa-linux-gcc cgcc -Wbitwise 
-Wp,-MD,drivers/video/console/.sticore.o.d  -nostdinc -isystem 
/opt/palinux33/lib/gcc-lib/hppa-linux/3.3.4/include -D__KERNEL__ 
-Iinclude  -include include/linux/autoconf.h -Wall -Wundef 
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common 
-Werror-implicit-function-declaration -Os   -pipe -mno-space-regs 
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1 
-mschedule=7100LC -fomit-frame-pointer       -D"KBUILD_STR(s)=#s" 
-D"KBUILD_BASENAME=KBUILD_STR(sticore)" 
-D"KBUILD_MODNAME=KBUILD_STR(sticore)" -c -o 
drivers/video/console/sticore.o drivers/video/console/sticore.c
drivers/video/console/sticore.c:32:19: warning: symbol 'default_sti' was 
not declared. Should it be static?
drivers/video/console/sticore.c:241:1: warning: symbol 'sti_rom_copy' 
was not declared. Should it be static?
drivers/video/console/sticore.c:481:24: warning: symbol 
'sti_select_fbfont' was not declared. Should it be static?
drivers/video/console/sticore.c:544:24: warning: symbol 
'sti_select_font' was not declared. Should it be static?
drivers/video/console/sticore.c:710:16: warning: symbol 
'sti_get_wmode_rom' was not declared. Should it be static?
drivers/video/console/sticore.c:727:1: warning: symbol 'sti_read_rom' 
was not declared. Should it be static?
drivers/video/console/sticore.c:975:1: warning: symbol 'sti_pci_tbl' was 
not declared. Should it be static?

Helge
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On Fri, 2008-06-06 at 22:35 +0200, Krzysztof Helt wrote:
> On Thu, 05 Jun 2008 17:26:54 -0500
> James Bottomley <James.Bottomley@HansenPartnership.com> wrote:
> 
> > 
> > I'm really not sure this is such a good idea.  pci_map_rom() can do an
> > ioremap() on the region.  In that case, gsc_readl which punches through
> > our virtual memory into physical I/O space will fail.  What assurance do
> > we have that all STI roms are correctly set up so pci_map_rom() isn't
> > inclined to ioremap them?
> > 
> 
> I haven't thought about this. The ROM the Helge tested was obviously
> set up correctly, otherwise reading the ROM signature would be impossible.

I suspect Helge only tested GSC based cards, which will work just fine
because they use the old logic.

> What is you advise for this patch James?

The more I look at this the more I doubt that it's a good thing.  STI is
really a platform driver; it has to function for both GSC and PCI
busses.  pci_map_rom() seems to be a bit of a minefield designed for x86
centric video cards, which STI definitely isn't.  The sticore driver is
also designed to operate on unmapped ranges ... at least this is the way
it's designed for the GSC, so the PCI part has to follow suit.

Our simple base get and enabling transparently the driver currently has
says what we're doing; I don't really see why it needs to switch to
pci_map_rom.  Additionally, I fear that switching to pci_map_rom will
cause us to break later on down the road.

James


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From - Thu Nov 08 21:02:21 2018
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On Fri, 06 Jun 2008 18:27:41 -0500
James Bottomley <James.Bottomley@HansenPartnership.com> wrote:

> On Fri, 2008-06-06 at 22:35 +0200, Krzysztof Helt wrote:

> > What is you advise for this patch James?
> 
> The more I look at this the more I doubt that it's a good thing.  STI is
> really a platform driver; it has to function for both GSC and PCI
> busses.  pci_map_rom() seems to be a bit of a minefield designed for x86
> centric video cards, which STI definitely isn't.  The sticore driver is
> also designed to operate on unmapped ranges ... at least this is the way
> it's designed for the GSC, so the PCI part has to follow suit.
> 
> Our simple base get and enabling transparently the driver currently has
> says what we're doing; I don't really see why it needs to switch to
> pci_map_rom.  Additionally, I fear that switching to pci_map_rom will
> cause us to break later on down the road.
> 

I am forwarding it to the reporter of the bug 9425 as this bug should be 
closed without changing the code.

A very similar case is for the bug 9424. I analyzed code for the Matrox
framebuffers and it is not worth changing. The idea behind the  pci_map_rom()
is that it enables and maps the ROM area. The Matrox framebuffer has
these two separated as the ROM may appear in the already mapped area.
The ROM is always enabled but not always mapped.

The only unification I see is to export pci_rom_enable/pci_rom_disable()
and use them inside the Matrox and sticore drivers (so no ioremap() 
is done but the code is shorter).

Regards,
Krzysztof

----------------------------------------------------------------------
Tanie rozmowy!
Sprawdz >>>  http://link.interia.pl/f1e22 

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On Sat, 2008-06-07 at 05:12 -0700, Jon Smirl wrote:
> > > What is you advise for this patch James?
> > 
> > The more I look at this the more I doubt that it's a good thing.  STI is
> > really a platform driver; it has to function for both GSC and PCI
> > busses.  pci_map_rom() seems to be a bit of a minefield designed for x86
> > centric video cards, which STI definitely isn't.  The sticore driver is
> > also designed to operate on unmapped ranges ... at least this is the way
> > it's designed for the GSC, so the PCI part has to follow suit.
> 
> The PCI ROM API was made for three main reasons:
> 
> 1) Drivers, including X, were mapping the ROMs without declaring the
> resource. If you map a ROM without declaring the resource the kernel
> doesn't know it is there and may map something else into the same
> addresses. It's been a while but I believe the virtualization people
> were the ones complaining.

This one doesn't really apply to us.  The parisc gsc drivers are
designed to operate without remapping.  The PA architecture has load and
store absolute instructions, so we can access the physical locations of
the bus (this is PCI or GSC or runway or any of the other parisc busses)
without needing it to be mapped anywhere (it's actually helpful on 32
bits not to waste pieces of the virtual address space).  the
gsc_readX/gsc_writeX that the sti driver uses are really just wrappers
around load and store absolutes.  The problem is that if the location
does get mapped, you can't use the gsc_readX instructions on it (you
have to use ordinary readX)

The driver could be conceivably be updated to do an ioremap on the GSC
regions, but right at the moment that's not the way it works ... it's
also not clear to me that there'd be any benefit to changing it.

> 2) Error checking was not robust in the code that was directly
> mapping. This was causing drivers to hang when they used ROMs they
> thought were there and really weren't. This can definitely happen and
> it has happened on my own boxes while doing video driver work.
> Occasionally hardware doesn't initialize right and the ROMs won't
> enable.

The error checking in the STI driver seems fine ... it's checking for a
specific rom signature which won't be found if the rom isn't there.

> 3) It is the ground work for supporting multiple video cards in a box.
> When there are multiple cards the API keeps them from mapping on top
> of each other.

The bus inventory on PA does this one automatically because we're using
the bus physical addresses (you can't configure two devices to respond
on the same address).

> This code was not intended to be x86 specific. The PCI ROM format is
> cross platform and this code is used on the PowerPC. 

Well comments in the routine say things like:

	/*
	 * IORESOURCE_ROM_SHADOW set on x86, x86_64 and IA64 supports legacy
	 * memory map if the VGA enable bit of the Bridge Control register is
	 * set for embedded VGA.

Plus in order not to get ioremap'd we need IORESOURCE_ROM_COPY or
IORESOURCE_ROM_BIOS_COPY set in the flags, which I'm not sure we
have ... I need someone with a PCI version of one of these cards to
check (I only have the GSC version).

James


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From - Thu Nov 08 21:02:21 2018
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Subject: Re: [RESEND] [PATCH] convert sticore.c to PCI ROM API
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On Sat, Jun 07, 2008 at 11:08:36AM +0200, Krzysztof Helt wrote:
...
> I am forwarding it to the reporter of the bug 9425 as this bug should be 
> closed without changing the code.

Actually, we should change the code: add a comment that summarizes jejb's
feedback (and the rest of the conversation) so we don't repeat this
exercise again in 2 years.

thanks,
grant

> 
> A very similar case is for the bug 9424. I analyzed code for the Matrox
> framebuffers and it is not worth changing. The idea behind the  pci_map_rom()
> is that it enables and maps the ROM area. The Matrox framebuffer has
> these two separated as the ROM may appear in the already mapped area.
> The ROM is always enabled but not always mapped.
> 
> The only unification I see is to export pci_rom_enable/pci_rom_disable()
> and use them inside the Matrox and sticore drivers (so no ioremap() 
> is done but the code is shorter).
> 
> Regards,
> Krzysztof
> 
> ----------------------------------------------------------------------
> Tanie rozmowy!
> Sprawdz >>>  http://link.interia.pl/f1e22 
> 
> --
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From: Jon Smirl <jonsmirl@yahoo.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.fbdev.devel
Subject: Re: [RESEND] [PATCH] convert sticore.c to PCI ROM API
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----- Original Message ----
From: Grant Grundler <grundler@parisc-linux.org>
To: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>; Jon Smirl <jonsmirl@yahoo.com>; Linux-fbdev-devel <linux-fbdev-devel@lists.sourceforge.net>; Andrew Morton <akpm@linux-foundation.org>; Helge Deller <deller@gmx.de>; linux-parisc@vger.kernel.org
Sent: Saturday, June 7, 2008 4:34:28 PM
Subject: Re: [RESEND] [PATCH] convert sticore.c to PCI ROM API

On Sat, Jun 07, 2008 at 11:08:36AM +0200, Krzysztof Helt wrote:
...
> I am forwarding it to the reporter of the bug 9425 as this bug should be 
> closed without changing the code.

Actually, we should change the code: add a comment that summarizes jejb's
feedback (and the rest of the conversation) so we don't repeat this
exercise again in 2 years.
----------------------------------------------------

The PCI ROM API was made for three main reasons:

1) Drivers,
including X, were mapping the ROMs without declaring the resource. If
you map a ROM without declaring the resource the kernel doesn't know it
is there and may map something else into the same addresses. It's been
a while but I believe the virtualization people were the ones
complaining. 

2) Error checking was not robust in the code that
was directly mapping. This was causing drivers to hang when they used
ROMs they thought the ROM was there and really wasn't. This can definitely
happen and it has happened on my own boxes while doing video driver
work. Occasionally hardware doesn't initialize right and the ROMs won't
enable.

3) It is the ground work for supporting multiple video
cards in a box. When there are multiple cards the API keeps them from
mapping on top of each other. If the location of the ROM is not flexible one has to be turned off before the other one can be turned on.

This code was not intended to be x86 specific. The PCI ROM format is cross platform and this code is used on the PowerPC. 

> 
> A very similar case is for the bug 9424. I analyzed code for the Matrox
> framebuffers and it is not worth changing. The idea behind the  pci_map_rom()
> is that it enables and maps the ROM area. The Matrox framebuffer has
> these two separated as the ROM may appear in the already mapped area.
> The ROM is always enabled but not always mapped.

This is one of the ways to get into trouble. If the ROM is enabled the kernel needs to have a resource marking it to make sure that nothing else gets enabled in the same place. When these ROM were accessed directly by the drivers, the driver code was often missing a few of the error checks needed or the resource allocation, etc. The centralize code made sure that every necessary was done to access the ROMs.

> 
> The only unification I see is to export pci_rom_enable/pci_rom_disable()
> and use them inside the Matrox and sticore drivers (so no ioremap() 
> is done but the code is shorter).
> 
> Regards,
> Krzysztof
> 
> ----------------------------------------------------------------------
> Tanie rozmowy!
> Sprawdz >>>  http://link.interia.pl/f1e22 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html



      
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From - Thu Nov 08 21:02:21 2018
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To: "Carlos O'Donell" <carlos@systemhalted.org>,
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Hello Carlos, Kyle,

Trying to refresh my memory about gcc "memory" clobber, I just figure out that I missed what looks to me a useless 
redundancy in some FIXUP_BRANCH_CLOBBER usage in the mentioned file:

you did well:
#define FIXUP_BRANCH_CLOBBER "r1"

I think so what is following is just a cleanup which wouldn't affect the generated code, even thought:
--- ./a/arch/parisc/kernel/unaligned.c	2008-05-17 16:44:35.000000000 +0000
+++ ./b/arch/parisc/kernel/unaligned.c	2008-06-07 21:30:56.000000000 +0000
@@ -350,7 +350,7 @@
  	ASM_EXCEPTIONTABLE_ENTRY(2b,4b)
  	: "=r" (ret)
  	: "r" (val), "r" (regs->ior), "r" (regs->isr)
-	: "r19", "r20", "r21", "r22", "r1", FIXUP_BRANCH_CLOBBER );
+	: "r19", "r20", "r21", "r22", FIXUP_BRANCH_CLOBBER );

  	return 0;
  }
@@ -402,7 +402,7 @@
  	ASM_EXCEPTIONTABLE_ENTRY(4b,6b)
  	: "=r" (ret)
  	: "r" (val), "r" (regs->ior), "r" (regs->isr)
-	: "r19", "r20", "r21", "r22", "r1", FIXUP_BRANCH_CLOBBER );
+	: "r19", "r20", "r21", "r22", FIXUP_BRANCH_CLOBBER );
  #else
      {
  	unsigned long valh=(val>>32),vall=(val&0xffffffffl);
@@ -437,7 +437,7 @@
  	ASM_EXCEPTIONTABLE_ENTRY(5b,7b)
  	: "=r" (ret)
  	: "r" (valh), "r" (vall), "r" (regs->ior), "r" (regs->isr)
-	: "r19", "r20", "r21", "r1", FIXUP_BRANCH_CLOBBER );
+	: "r19", "r20", "r21", FIXUP_BRANCH_CLOBBER );
      }
  #endif

=== <> ===

What's your opinion?

Cheers,
	r.
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From - Thu Nov 08 21:02:21 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [RESEND] [PATCH] convert sticore.c to PCI ROM API
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Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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James Bottomley wrote:
> On Fri, 2008-06-06 at 22:35 +0200, Krzysztof Helt wrote:
>> On Thu, 05 Jun 2008 17:26:54 -0500
>> James Bottomley <James.Bottomley@HansenPartnership.com> wrote:
>>
>>> I'm really not sure this is such a good idea.  pci_map_rom() can do an
>>> ioremap() on the region.  In that case, gsc_readl which punches through
>>> our virtual memory into physical I/O space will fail.  What assurance do
>>> we have that all STI roms are correctly set up so pci_map_rom() isn't
>>> inclined to ioremap them?
>>>
>> I haven't thought about this. The ROM the Helge tested was obviously
>> set up correctly, otherwise reading the ROM signature would be impossible.
> 
> I suspect Helge only tested GSC based cards, which will work just fine
> because they use the old logic.

No, tested on Tadpole Laptop (7100LC) and c3k with VisEG PCI.
But it's OK that the patch was dropped...

Helge
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CC'ed: parisc-linux kernel development list

Andreas Barth wrote:
> during the upload of python2.5, the build failed on hppa due to stalls
> in the test suite, see http://bugs.debian.org/483042 and
> http://buildd.debian.org/fetch.cgi?&pkg=python2.5&ver=2.5.2-5&arch=hppa&stamp=1211583145&file=log
> (Matthias "fixed" that bug by disabling the testsuite, not something that makes
> us happy.)
> 
> After that happened, we asked on #parisc if someone could take a look,
> and we were told that linuxthreads is currently unmaintained for hppa,
> and the issue could only be fixed by moving to nptl and we need to do an
> (incompatible) abi change in glibc. Such a change would be really
> unfortunate, and we hope that every other roads have been evaluated
> first (like trying to understand why python on linuxthreads fails on
> hppa but not on e.g. kfreebsd). We also would like to be sure that ntpl
> is really better than linuxthreads for python2.5 before a transition.

My personal feeling is, that a switch to NPTL is probably the best 
solution. Even if this involves a abi change.
Maybe experts on NPTL could comment here?

> In addition to the python2.5 issue, there are two other issues that are
> quite concerning:
>   * a problem with ruby1.9 which likely is kernel related #478717.

Hmm..

>   * dirmngr that segfaults, likely because of some signalstack issues
>     #459567.

Yes, we need to implement makecontext()/getcontext() in glibc.

> We've seen no porter activity on those bugs yet.

I'd volunteer to try on thedirmngr/makecontext() issue. (At least as far 
as my time permits).

> On further discussing that within the release team, we noticed that the
> Qualification page on http://wiki.debian.org/hppaLennyReleaseRecertification
> is not really complete, e.g. it says:
> | The installer is being maintained by ... and it's currently working
> | effectively. Successful installation reports are available at: ...
> 
> It would really be great (read: it is necessary) that the Qualification
> Page is filled with the missing information, and that we actually have
> enough porters for hppa.

I've added myself there in a few items.
I'd be willing to look into issues with the installer, but not being a 
active debian developer I'd need help from a debian guy if necessary.

> So, with respect to the python2.5 issue, what now?
> 
> 
> At the technical side, best of course would be if linuxthreads would
> continue to work at least enough for lenny, this was the case for a few
> years already, it should be able to survive a few months more, and
> python2.5 can build with the test-suite on hppa.  Of course not breaking
> the API during a linuxthreads -> NPTL switch would be even better.

I can't comment on that.

> If really you see no other option than switching to NPTL, even at the
> current unfortunate moment, the only way how this could be done in a
> timely fashion would be to exempt hppa from the list of architectures
> our testing migration scripts look at for updateness and non-breakness.
> Then upload glibc ASAP, and schedule an archive-wide binNMU campaign.
> 
> Of course, this demands enough buildd power, and wanna-build access by
> (some of) the porters (or whatever else you consider appropriate).
> Moreover it needs quite a lot of time to track that closely, which the
> Release Team probably won't have on its own, so we will need hppa
> buildd-admin and hppa porters time, a lot.
> 
> After the transition is done (and we can only hope it is in time for
> lenny), hppa could be added back to the normal architectures. Downside
> of this is of course that in case hppa is slower than lenny, lenny would
> be released without hppa.

which would be sad...


> Of course, we also need plans for the ruby and dirmngr issues.

Yes.

> So, after that long mail, what's your take on this? How do we continue?

Any other comments?

Helge
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On Tue, Jun 10, 2008 at 11:44:55PM +0200, Helge Deller wrote:
> CC'ed: parisc-linux kernel development list
>
> Andreas Barth wrote:
>> during the upload of python2.5, the build failed on hppa due to stalls
>> in the test suite, see http://bugs.debian.org/483042 and
>> http://buildd.debian.org/fetch.cgi?&pkg=python2.5&ver=2.5.2-5&arch=hppa&stamp=1211583145&file=log
>> (Matthias "fixed" that bug by disabling the testsuite, not something that 
>> makes
>> us happy.)
>> After that happened, we asked on #parisc if someone could take a look,
>> and we were told that linuxthreads is currently unmaintained for hppa,
>> and the issue could only be fixed by moving to nptl and we need to do an
>> (incompatible) abi change in glibc. Such a change would be really
>> unfortunate, and we hope that every other roads have been evaluated
>> first (like trying to understand why python on linuxthreads fails on
>> hppa but not on e.g. kfreebsd). We also would like to be sure that ntpl
>> is really better than linuxthreads for python2.5 before a transition.
>
> My personal feeling is, that a switch to NPTL is probably the best 
> solution. Even if this involves a abi change.
> Maybe experts on NPTL could comment here?
>
>> In addition to the python2.5 issue, there are two other issues that are
>> quite concerning:
>>   * a problem with ruby1.9 which likely is kernel related #478717.
>
> Hmm..
>
>>   * dirmngr that segfaults, likely because of some signalstack issues
>>     #459567.
>
> Yes, we need to implement makecontext()/getcontext() in glibc.
>
>> We've seen no porter activity on those bugs yet.
>
> I'd volunteer to try on thedirmngr/makecontext() issue. (At least as far as 
> my time permits).
>
>> On further discussing that within the release team, we noticed that the
>> Qualification page on 
>> http://wiki.debian.org/hppaLennyReleaseRecertification
>> is not really complete, e.g. it says:
>> | The installer is being maintained by ... and it's currently working
>> | effectively. Successful installation reports are available at: ...
>> It would really be great (read: it is necessary) that the Qualification
>> Page is filled with the missing information, and that we actually have
>> enough porters for hppa.
>
> I've added myself there in a few items.
> I'd be willing to look into issues with the installer, but not being a 
> active debian developer I'd need help from a debian guy if necessary.

hey Helge,
 Feel free to contact me if you need something done that requires DD
privs.

>> So, with respect to the python2.5 issue, what now?
>> At the technical side, best of course would be if linuxthreads would
>> continue to work at least enough for lenny, this was the case for a few
>> years already, it should be able to survive a few months more, and
>> python2.5 can build with the test-suite on hppa.  Of course not breaking
>> the API during a linuxthreads -> NPTL switch would be even better.
>
> I can't comment on that.
>
>> If really you see no other option than switching to NPTL, even at the
>> current unfortunate moment, the only way how this could be done in a
>> timely fashion would be to exempt hppa from the list of architectures
>> our testing migration scripts look at for updateness and non-breakness.
>> Then upload glibc ASAP, and schedule an archive-wide binNMU campaign.
>> Of course, this demands enough buildd power, and wanna-build access by
>> (some of) the porters (or whatever else you consider appropriate).
>> Moreover it needs quite a lot of time to track that closely, which the
>> Release Team probably won't have on its own, so we will need hppa
>> buildd-admin and hppa porters time, a lot.
>> After the transition is done (and we can only hope it is in time for
>> lenny), hppa could be added back to the normal architectures. Downside
>> of this is of course that in case hppa is slower than lenny, lenny would
>> be released without hppa.
>
> which would be sad...
>
>
>> Of course, we also need plans for the ruby and dirmngr issues.
>
> Yes.
>
>> So, after that long mail, what's your take on this? How do we continue?
>
> Any other comments?
>
> Helge
>
>
>

-- 
dann frazier

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On Tue, Jun 10, 2008 at 09:44:55PM +0000, Helge Deller wrote:
> CC'ed: parisc-linux kernel development list
>=20
> Andreas Barth wrote:
> >during the upload of python2.5, the build failed on hppa due to stalls
> >in the test suite, see http://bugs.debian.org/483042 and
> >http://buildd.debian.org/fetch.cgi?&pkg=3Dpython2.5&ver=3D2.5.2-5&arch=
=3Dhppa&stamp=3D1211583145&file=3Dlog
> >(Matthias "fixed" that bug by disabling the testsuite, not something=20
> >that makes
> >us happy.)
> >After that happened, we asked on #parisc if someone could take a look,
> >and we were told that linuxthreads is currently unmaintained for hppa,
> >and the issue could only be fixed by moving to nptl and we need to do an
> >(incompatible) abi change in glibc. Such a change would be really
> >unfortunate, and we hope that every other roads have been evaluated
> >first (like trying to understand why python on linuxthreads fails on
> >hppa but not on e.g. kfreebsd). We also would like to be sure that ntpl
> >is really better than linuxthreads for python2.5 before a transition.
>=20
> My personal feeling is, that a switch to NPTL is probably the best
> solution. Even if this involves a abi change.
> Maybe experts on NPTL could comment here?

  The NPTL in glibc works well afaict, the downside is the ABI bump,
because doing the archive-wide rebuild as a 66% chance to hurt the port
so bad that it will not be ready in time for lenny. This is a last
resort measure, and everything _must_ be tried before, because even
"losing" a week trying to fix linuxthreads is way faster than rebuilding
the whole archive which is rather a matter of months and risking no HPPA
at all in the end.

--=20
=C2=B7O=C2=B7  Pierre Habouzit
=C2=B7=C2=B7O                                                madcoder@debia=
n.org
OOO                                                http://www.madism.org

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On Tue, 2008-06-10 at 23:44 +0200, Helge Deller wrote:
> CC'ed: parisc-linux kernel development list
> 
> Andreas Barth wrote:
> > during the upload of python2.5, the build failed on hppa due to stalls
> > in the test suite, see http://bugs.debian.org/483042 and
> > http://buildd.debian.org/fetch.cgi?&pkg=python2.5&ver=2.5.2-5&arch=hppa&stamp=1211583145&file=log
> > (Matthias "fixed" that bug by disabling the testsuite, not something that makes
> > us happy.)
> > 
> > After that happened, we asked on #parisc if someone could take a look,
> > and we were told that linuxthreads is currently unmaintained for hppa,
> > and the issue could only be fixed by moving to nptl and we need to do an
> > (incompatible) abi change in glibc. Such a change would be really
> > unfortunate, and we hope that every other roads have been evaluated
> > first (like trying to understand why python on linuxthreads fails on
> > hppa but not on e.g. kfreebsd). We also would like to be sure that ntpl
> > is really better than linuxthreads for python2.5 before a transition.
> 
> My personal feeling is, that a switch to NPTL is probably the best 
> solution. Even if this involves a abi change.
> Maybe experts on NPTL could comment here?

Well ... we asked for a switch to NPTL over a year ago, raising the ABI
change issue (and requesting glibc6.1 or something similar).  At that
time there was a resounding lack of interest from Debian.  Ordinary
release logic does say that you shouldn't rev an ABI just before a
release.  However debian release logic seems to require some type of
crisis before we can get nptl in, so if this is it ...

> > In addition to the python2.5 issue, there are two other issues that are
> > quite concerning:
> >   * a problem with ruby1.9 which likely is kernel related #478717.
> 
> Hmm..

Actually, I can't reproduce this on ion, which is my debian testing
build box.  The only difference from a normal testing system is that
it's running 2.6.26-rc1 (it's also a pa8800 which makes its coherency a
bit more stringent).  Building python 2.5.2-6 and running all the built
in tests except the two parisc exceptions runs.  Ryan Murray stated that
the failing test was test_sys, so this is what I get running it alone:

jejb@ion> pwd
/home/jejb/sources/python2.5-2.5.2/build-shared
jejb@ion> ./python  -E -tt ../Lib/test/regrtest.py -w -l -uall -s
test_sys
test_sys
1 test OK.

So I think more investigation of the actual alleged failure is
warranted.  At this time, if it is a real failure, I'm not sure it's
necessarily threads related.

> >   * dirmngr that segfaults, likely because of some signalstack issues
> >     #459567.
> 
> Yes, we need to implement makecontext()/getcontext() in glibc.
> 
> > We've seen no porter activity on those bugs yet.
> 
> I'd volunteer to try on thedirmngr/makecontext() issue. (At least as far 
> as my time permits).
> 
> > On further discussing that within the release team, we noticed that the
> > Qualification page on http://wiki.debian.org/hppaLennyReleaseRecertification
> > is not really complete, e.g. it says:
> > | The installer is being maintained by ... and it's currently working
> > | effectively. Successful installation reports are available at: ...
> > 
> > It would really be great (read: it is necessary) that the Qualification
> > Page is filled with the missing information, and that we actually have
> > enough porters for hppa.
> 
> I've added myself there in a few items.
> I'd be willing to look into issues with the installer, but not being a 
> active debian developer I'd need help from a debian guy if necessary.
> 
> > So, with respect to the python2.5 issue, what now?
> > 
> > 
> > At the technical side, best of course would be if linuxthreads would
> > continue to work at least enough for lenny, this was the case for a few
> > years already, it should be able to survive a few months more, and
> > python2.5 can build with the test-suite on hppa.  Of course not breaking
> > the API during a linuxthreads -> NPTL switch would be even better.
> 
> I can't comment on that.

I'll see if I can fix it whatever it is, but right now I need a
reproducible test case.  It looks like the current failure might be tied
to whatever the buildd system was doing or some weird installation
dependency it happens to have that I don't.

James


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<answer with my glibc hat on>

On Thu, Jun 12, 2008 at 03:39:07PM +0000, James Bottomley wrote:
> On Tue, 2008-06-10 at 23:44 +0200, Helge Deller wrote:
> > My personal feeling is, that a switch to NPTL is probably the best=20
> > solution. Even if this involves a abi change.
> > Maybe experts on NPTL could comment here?
>=20
> Well ... we asked for a switch to NPTL over a year ago, raising the ABI
> change issue (and requesting glibc6.1 or something similar).  At that
> time there was a resounding lack of interest from Debian.  Ordinary
> release logic does say that you shouldn't rev an ABI just before a
> release.  However debian release logic seems to require some type of
> crisis before we can get nptl in, so if this is it ...

  This is totally unfair, at the time Carlos said that it was probable
that the ABI bump wasn't necessary but that he needed some time to
figure it out and. I've seen absolutely no hard push for NPTL at the
time, and except python2.5 (and again it's still remain to be proven
it's LT related) we've seen no issue on hppa with linuxthreads so far.
So I remain convinced that it's better to see if the ABI bump can be
avoided or not, and if it can't, we can do it in lenny+1 OK.

> Actually, I can't reproduce this on ion, which is my debian testing
> build box.  The only difference from a normal testing system is that
> it's running 2.6.26-rc1 (it's also a pa8800 which makes its coherency a
> bit more stringent).  Building python 2.5.2-6 and running all the built
> in tests except the two parisc exceptions runs.  Ryan Murray stated that
> the failing test was test_sys, so this is what I get running it alone:
>=20
> jejb@ion> pwd
> /home/jejb/sources/python2.5-2.5.2/build-shared
> jejb@ion> ./python  -E -tt ../Lib/test/regrtest.py -w -l -uall -s
> test_sys
> test_sys
> 1 test OK.
>=20
> So I think more investigation of the actual alleged failure is
> warranted.  At this time, if it is a real failure, I'm not sure it's
> necessarily threads related.

  This is really coherent with our observations: LT is almost pure C,
and kfreebsd uses LT and python works really well. So either it's a bug
in the LT hppa specific code, or a kernel issue. Your tests tends to
show the latter.

> > > So, with respect to the python2.5 issue, what now?
> > >
> > > At the technical side, best of course would be if linuxthreads would
> > > continue to work at least enough for lenny, this was the case for a f=
ew
> > > years already, it should be able to survive a few months more, and
> > > python2.5 can build with the test-suite on hppa.  Of course not break=
ing
> > > the API during a linuxthreads -> NPTL switch would be even better.
> >=20
> > I can't comment on that.
>=20
> I'll see if I can fix it whatever it is, but right now I need a
> reproducible test case.  It looks like the current failure might be tied
> to whatever the buildd system was doing or some weird installation
> dependency it happens to have that I don't.


--=20
=C2=B7O=C2=B7  Pierre Habouzit
=C2=B7=C2=B7O                                                madcoder@debia=
n.org
OOO                                                http://www.madism.org

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Pierre Habouzit wrote:
[snip]
> > Actually, I can't reproduce this on ion, which is my debian testing
> > build box.  The only difference from a normal testing system is that
> > it's running 2.6.26-rc1 (it's also a pa8800 which makes its coherency a
> > bit more stringent).  Building python 2.5.2-6 and running all the built
> > in tests except the two parisc exceptions runs.  Ryan Murray stated that
> > the failing test was test_sys, so this is what I get running it alone:
> > 
> > jejb@ion> pwd
> > /home/jejb/sources/python2.5-2.5.2/build-shared
> > jejb@ion> ./python  -E -tt ../Lib/test/regrtest.py -w -l -uall -s
> > test_sys
> > test_sys
> > 1 test OK.
> > 
> > So I think more investigation of the actual alleged failure is
> > warranted.  At this time, if it is a real failure, I'm not sure it's
> > necessarily threads related.
> 
>   This is really coherent with our observations: LT is almost pure C,
> and kfreebsd uses LT and python works really well. So either it's a bug
> in the LT hppa specific code, or a kernel issue. Your tests tends to
> show the latter.

I recall a similiar failure on mips/mipsel went away after upgrading the
buildd kernels to 2.6.24+. (I have no idea what version the hppa buildds
use.)


Thiemo
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Purely bugfixes (and a reversion of the section name patch since it broke
on a pile of machines.)

cheers, Kyle

The following changes since commit 5dd34572ad9a3be430632dd42e4af2ea370b397b:
  Linus Torvalds (1):
        Linux 2.6.26-rc6

are available in the git repository at:

  /pub/scm/linux/kernel/git/kyle/parisc-2.6.git master

Kyle McMartin (7):
      Revert "parisc: fix trivial section name warnings"
      parisc: move head.S to head.text section
      parisc: export copy_user_page_asm
      parisc: export empty_zero_page
      parisc: fix off by one in setup_sigcontext32
      parisc: fix miscompilation of ip_fast_csum with gcc >= 4.3
      parisc: update my email address

 MAINTAINERS                       |    8 ++++----
 arch/parisc/hpux/gate.S           |    3 +--
 arch/parisc/hpux/wrappers.S       |    3 +--
 arch/parisc/kernel/entry.S        |    3 +--
 arch/parisc/kernel/head.S         |    1 +
 arch/parisc/kernel/hpmc.S         |    3 +--
 arch/parisc/kernel/pacache.S      |    3 +--
 arch/parisc/kernel/parisc_ksyms.c |    3 +++
 arch/parisc/kernel/perf_asm.S     |    2 +-
 arch/parisc/kernel/real2.S        |   13 ++++++-------
 arch/parisc/kernel/signal32.c     |    4 ++--
 arch/parisc/kernel/syscall.S      |    5 ++---
 arch/parisc/kernel/vmlinux.lds.S  |    1 +
 arch/parisc/lib/fixup.S           |    3 +--
 arch/parisc/lib/lusercopy.S       |    5 ++---
 arch/parisc/mm/init.c             |    1 +
 include/asm-parisc/checksum.h     |    2 +-
 17 files changed, 30 insertions(+), 33 deletions(-)
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From - Thu Nov 08 21:02:22 2018
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Subject: sections warnings back again
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Hi Kyle,

your commits:

commit 1138a72cd96857d1d5928c0c8c83d8b8995eeb38
Author: Kyle McMartin <kyle@minerva.i.cabal.ca>
Date:   Thu May 22 14:38:26 2008 -0400

     parisc: move head.S to head.text section

     And explicitly list it in vmlinux.lds...

     Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit dfcf753bd3fb09f336659d07b1c48db7e62772e0
Author: Kyle McMartin <kyle@minerva.i.cabal.ca>
Date:   Thu May 22 14:36:31 2008 -0400

     Revert "parisc: fix trivial section name warnings"

     This reverts commit bd3bb8c15b9a80dbddfb7905b237a4a11a4725b4.

     Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>


re-introduced some section warnings again.
It seems we need a few more...

...
   LD      vmlinux.o
   MODPOST vmlinux.o
WARNING: vmlinux.o (.text.1): unexpected section name.
The (.[number]+) following section name are ld generated and not expected.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

WARNING: vmlinux.o (.text.2): unexpected section name.
The (.[number]+) following section name are ld generated and not expected.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

WARNING: vmlinux.o (.text.7): unexpected section name.
The (.[number]+) following section name are ld generated and not expected.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

WARNING: vmlinux.o (.text.8): unexpected section name.
The (.[number]+) following section name are ld generated and not expected.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

WARNING: vmlinux.o (.text.16): unexpected section name.
The (.[number]+) following section name are ld generated and not expected.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

WARNING: vmlinux.o (.text.17): unexpected section name.
The (.[number]+) following section name are ld generated and not expected.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

   GEN     .version
   CHK     include/linux/compile.h
   UPD     include/linux/compile.h
...
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Subject: ldcw inline assembler patch
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I'm wondering if this patch might help people who are seeing locking 
problems on SMP boxes ?
Helge

diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h
index ee80c92..4752684 100644
--- a/include/asm-parisc/system.h
+++ b/include/asm-parisc/system.h
@@ -168,8 +168,9 @@ static inline void set_eiem(unsigned long val)
  /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
  #define __ldcw(a) ({						\
  	unsigned __ret;						\
-	__asm__ __volatile__(__LDCW " 0(%1),%0"			\
-		: "=r" (__ret) : "r" (a));			\
+	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
+			: "=r" (__ret), "=m" (*(a))		\
+			: "r" (a), "m" (*(a))	);		\
  	__ret;							\
  })

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Subject: in ccio_io_pdir_entry(), BUG_ON() seems to break gcc-4.2 optimization?
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Hello all,

looking at this hunk:
void CCIO_INLINE
ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
                    unsigned long hints)
{
         register unsigned long pa;
         register unsigned long ci; /* coherent index */

         /* We currently only support kernel addresses */
         BUG_ON(sid != KERNEL_SPACE);

         mtsp(sid,1);

[snip]
         pa = virt_to_phys(vba);
         asm volatile("depw  %1,31,12,%0" : "+r" (pa) : "r" (hints));
         ((u32 *)pdir_ptr)[1] = (u32) pa;

[snip]
         pa = 0;
[snip]
         asm volatile ("lci %%r0(%%sr1, %1), %0" : "=r" (ci) : "r" (vba));
         asm volatile ("extru %1,19,12,%0" : "+r" (ci) : "r" (ci));
         asm volatile ("depw  %1,15,12,%0" : "+r" (pa) : "r" (ci));

         ((u32 *)pdir_ptr)[0] = (u32) pa;

[snip]
         asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
         asm volatile("sync");
}
(I just remove comments and 64bit stuff)

and I noticed that resulting code looks like:
    0:   cb 39 a0 60     movb,<> r25,r25,38 <ccio_io_pdir_entry+0x38>
    4:   34 1c 00 00     ldi 0,ret0
    8:   00 1c 58 20     mtsp ret0,sr1
    c:   22 60 0e 01     ldil L%-10000000,r19
   10:   0a 78 0a 13     add,l r24,r19,r19
   14:   d6 77 0c 14     depw r23,31,12,r19
   18:   0f 53 12 88     stw r19,4(r26)
   1c:   07 00 53 1c     lci r0(sr1,r24),ret0
   20:   d3 9c 1a 74     extrw,u ret0,19,12,ret0
   24:   d7 3c 0e 14     depw ret0,15,12,r25
   28:   0f 59 12 80     stw r25,0(r26)
   2c:   07 40 12 80     fdc r0(r26)
   30:   00 00 04 00     sync
   34:   e8 40 c0 02     bv,n r0(rp)
   38:   03 ff e0 1f     break 1f,1fff
   3c:   e8 1f 1f f7     b,l,n 3c <ccio_io_pdir_entry+0x3c>,r0
Disassembly of section .text.ccio_proc_bitmap_open:

And my worry was about lines 4: and 8:.
According to the C code, I don't understand why optimization want to initialize sr1 to 0 while it should be set to r25 (i.e. 
arg1)?

Otoh, the sba botherhood code didn't showing the same behaviour:
    0:   22 a0 0e 01     ldil L%-10000000,r21
    4:   34 1c 00 00     ldi 0,ret0
    8:   34 1d 20 01     ldi -1000,ret1
    c:   0a b8 0a 15     add,l r24,r21,r21
   10:   08 15 02 56     copy r21,r22
   14:   34 15 00 00     ldi 0,r21
   18:   0b 95 02 15     and r21,ret0,r21
   1c:   0b b6 02 16     and r22,ret1,r22
   20:   00 19 58 20     mtsp r25,sr1
   24:   07 00 53 13     lci r0(sr1,r24),r19
   28:   d2 73 1a 6c     extrw,u r19,19,20,r19
   2c:   23 80 00 01     ldil L%-80000000,ret0
   30:   34 1d 00 00     ldi 0,ret1

but didn't start with BUG_ON(), I simply try to remove this from ccio code and get a better result:
00000000 <ccio_io_pdir_entry>:
    0:   00 19 58 20     mtsp r25,sr1
    4:   23 80 0e 01     ldil L%-10000000,ret0
    8:   0b 98 0a 1c     add,l r24,ret0,ret0
    c:   d7 97 0c 14     depw r23,31,12,ret0
   10:   0f 5c 12 88     stw ret0,4(r26)
   14:   07 00 53 18     lci r0(sr1,r24),r24
   18:   d3 18 1a 74     extrw,u r24,19,12,r24
   1c:   34 1c 00 00     ldi 0,ret0
   20:   d7 98 0e 14     depw r24,15,12,ret0
   24:   0f 5c 12 80     stw ret0,0(r26)
   28:   07 40 12 80     fdc r0(r26)
   2c:   00 00 04 00     sync
   30:   e8 40 c0 02     bv,n r0(rp)
Disassembly of section .init.text:

But this time, it seems not consider assembly:
         asm volatile ("lci %%r0(%%sr1, %1), %0" : "=r" (ci) : "r" (vba));
         asm volatile ("extru %1,19,12,%0" : "+r" (ci) : "r" (ci));
         asm volatile ("depw  %1,15,12,%0" : "+r" (pa) : "r" (ci));

as a 'volatile' block and insert line 1c:
This could may be solved by re-write as an one 'volatile' asm block like:
	asm volatile (
	"lci %%r0(%%sr1, %1), %1"
	"\textru        %1,19,12,%1\n"
	"\tdepw         %1,15,12,%0\n"
	: "=r" (pa)
	: "r" (vba));

and even add a clobber 'memory'
	asm volatile (
	"lci %%r0(%%sr1, %1), %1"
	"\textru        %1,19,12,%1\n"
	"\tdepw         %1,15,12,%0\n"
	: "=r" (pa)
	: "r" (vba)
	: "memory");

But I have no clue how to restore BUG_ON() and avoid wrong optimization?

Any idea?

Tia,
	r.

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Hello dear parisc-linux.org maintainers,

I try to look for some archived mail on 'http://parisc-linux.org/mailing-lists/index.html'

but it din't answers: 'The server at www.parisc-linux.org is taking too long to respond.'

I just hope it's just a temporary failure.

Tia,
	r.
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Subject: [2.6 patch] binfmt_som.c: add MODULE_LICENSE
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This patch adds the missing MODULE_LICENSE("GPL").

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>

---
4cec562181f818f16f072b9a14ca7a0ce6c66417 diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c
index fdc36bf..6d3bebb 100644
--- a/fs/binfmt_som.c
+++ b/fs/binfmt_som.c
@@ -308,3 +308,5 @@ static void __exit exit_som_binfmt(void)
 
 core_initcall(init_som_binfmt);
 module_exit(exit_som_binfmt);
+
+MODULE_LICENSE("GPL");
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Subject: [2.6 patch] drivers/parisc/: make code static
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This patch makes the following needlessly global code static:
- asp.c: asp_init_chip()
- ccio-dma.c: ccio_io_pdir_entry()
- dino.c: struct dino_port_ops
- dino.c: struct dino_bios_ops
- hppb.c: struct hppb_card_head
- lasi.c: lasi_led_init()
- lasi.c: lasi_init_chip()
- lba_pci.c: struct lba_bios_ops
- sba_iommu.c: sba_io_pdir_entry()
- sba_iommu.c: sba_driver_callback()
- sba_iommu.c: sba_driver_callback()
- wax.c: wax_init_chip()

Signed-off-by: Adrian Bunk <bunk@kernel.org>

---

 drivers/parisc/asp.c       |    3 +--
 drivers/parisc/ccio-dma.c  |    2 +-
 drivers/parisc/dino.c      |    4 ++--
 drivers/parisc/hppb.c      |    2 +-
 drivers/parisc/lasi.c      |    5 ++---
 drivers/parisc/lba_pci.c   |    2 +-
 drivers/parisc/sba_iommu.c |    7 +++----
 drivers/parisc/wax.c       |    3 +--
 8 files changed, 12 insertions(+), 16 deletions(-)

78e10083d054032afa9979cae16c10d54d366855 diff --git a/drivers/parisc/asp.c b/drivers/parisc/asp.c
index 8213691..7931133 100644
--- a/drivers/parisc/asp.c
+++ b/drivers/parisc/asp.c
@@ -71,8 +71,7 @@ static void asp_choose_irq(struct parisc_device *dev, void *ctrl)
  */
 #define ASP_INTERRUPT_ADDR 0xf0800000
 
-int __init
-asp_init_chip(struct parisc_device *dev)
+static int __init asp_init_chip(struct parisc_device *dev)
 {
 	struct gsc_irq gsc_irq;
 	int ret;
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index b30e38f..898f69e 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -564,7 +564,7 @@ static u32 hint_lookup[] = {
  * (Load Coherence Index) instruction.  The 8 bits used for the virtual
  * index are bits 12:19 of the value returned by LCI.
  */ 
-void CCIO_INLINE
+static void CCIO_INLINE
 ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
 		   unsigned long hints)
 {
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index fd56128..ada21b0 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -287,7 +287,7 @@ DINO_PORT_OUT(b,  8, 3)
 DINO_PORT_OUT(w, 16, 2)
 DINO_PORT_OUT(l, 32, 0)
 
-struct pci_port_ops dino_port_ops = {
+static struct pci_port_ops dino_port_ops = {
 	.inb	= dino_in8,
 	.inw	= dino_in16,
 	.inl	= dino_in32,
@@ -688,7 +688,7 @@ dino_fixup_bus(struct pci_bus *bus)
 }
 
 
-struct pci_bios_ops dino_bios_ops = {
+static struct pci_bios_ops dino_bios_ops = {
 	.init		= dino_bios_init,
 	.fixup_bus	= dino_fixup_bus
 };
diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c
index 65eee67..1385641 100644
--- a/drivers/parisc/hppb.c
+++ b/drivers/parisc/hppb.c
@@ -29,7 +29,7 @@ struct hppb_card {
 	struct hppb_card *next;
 };
 
-struct hppb_card hppb_card_head = {
+static struct hppb_card hppb_card_head = {
 	.hpa = 0,
 	.next = NULL,
 };
diff --git a/drivers/parisc/lasi.c b/drivers/parisc/lasi.c
index bee5100..e65727c 100644
--- a/drivers/parisc/lasi.c
+++ b/drivers/parisc/lasi.c
@@ -107,7 +107,7 @@ lasi_init_irq(struct gsc_asic *this_lasi)
 
 #else
 
-void __init lasi_led_init(unsigned long lasi_hpa)
+static void __init lasi_led_init(unsigned long lasi_hpa)
 {
 	unsigned long datareg;
 
@@ -163,8 +163,7 @@ static void lasi_power_off(void)
 	gsc_writel(0x02, datareg);
 }
 
-int __init
-lasi_init_chip(struct parisc_device *dev)
+static int __init lasi_init_chip(struct parisc_device *dev)
 {
 	extern void (*chassis_power_off)(void);
 	struct gsc_asic *lasi;
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index a28c894..d8233de 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -824,7 +824,7 @@ lba_fixup_bus(struct pci_bus *bus)
 }
 
 
-struct pci_bios_ops lba_bios_ops = {
+static struct pci_bios_ops lba_bios_ops = {
 	.init =		lba_bios_init,
 	.fixup_bus =	lba_fixup_bus,
 };
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index bc73b96..34763e2 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -561,7 +561,7 @@ typedef unsigned long space_t;
  * IOMMU uses little endian for the pdir.
  */
 
-void SBA_INLINE
+static void SBA_INLINE
 sba_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
 		  unsigned long hint)
 {
@@ -1874,7 +1874,7 @@ static struct parisc_device_id sba_tbl[] = {
 	{ 0, }
 };
 
-int sba_driver_callback(struct parisc_device *);
+static int sba_driver_callback(struct parisc_device *);
 
 static struct parisc_driver sba_driver = {
 	.name =		MODULE_NAME,
@@ -1887,8 +1887,7 @@ static struct parisc_driver sba_driver = {
 ** If so, initialize the chip and tell other partners in crime they
 ** have work to do.
 */
-int
-sba_driver_callback(struct parisc_device *dev)
+static int sba_driver_callback(struct parisc_device *dev)
 {
 	struct sba_device *sba_dev;
 	u32 func_class;
diff --git a/drivers/parisc/wax.c b/drivers/parisc/wax.c
index 892a83b..da9d5ad 100644
--- a/drivers/parisc/wax.c
+++ b/drivers/parisc/wax.c
@@ -68,8 +68,7 @@ wax_init_irq(struct gsc_asic *wax)
 //	gsc_writel(0xFFFFFFFF, base+0x2000); /* RS232-B on Wax */
 }
 
-int __init
-wax_init_chip(struct parisc_device *dev)
+static int __init wax_init_chip(struct parisc_device *dev)
 {
 	struct gsc_asic *wax;
 	struct parisc_device *parent;

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arch/parisc/kernel/pci.c:pcibios_init_bus() never gets called - this
doesn't seem to be intentionally?

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed


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From: Adrian Bunk <bunk@kernel.org>
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Subject: [2.6 patch] parisc/kernel/ cleanups
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This patch contains the following cleanups:
- make the following needlessly global code static:
  - cache.c: split_tlb
  - cache.c: clear_user_page_asm()
  - cache.c: parisc_cache_flush_threshold
  - drivers.c: create_tree_node()
  - drivers.c: struct parisc_bus_type
  - drivers.c: walk_lower_bus()
  - firmware.c: real32_call()
  - firmware.c: real64_call()
  - perf.c: struct cpu_device
  - setup.c: setup_cmdline()
  - setup.c: dma_ops_init()
  - smp.c: ipi_lock
  - smp.c: smp_boot_one_cpu()
  - traps.c: parisc_show_stack()
  - traps.c: transfer_pim_to_trap_frame()
  - traps.c: check_ivt()
- #if 0 the following unused function:
  - pdc_cons.c: pdc_console_poll_key()
- remove the following unused code:
  - smp.c: smp_lock
  - traps.c: syscall_ipi()

Signed-off-by: Adrian Bunk <bunk@kernel.org>

---

 arch/parisc/kernel/cache.c         |    7 +++----
 arch/parisc/kernel/drivers.c       |    8 +++++---
 arch/parisc/kernel/firmware.c      |    8 ++++----
 arch/parisc/kernel/pdc_cons.c      |    2 ++
 arch/parisc/kernel/perf.c          |    2 +-
 arch/parisc/kernel/setup.c         |    4 ++--
 arch/parisc/kernel/smp.c           |    6 ++----
 arch/parisc/kernel/traps.c         |   17 ++++++-----------
 include/asm-parisc/cache.h         |    1 -
 include/asm-parisc/parisc-device.h |    2 --
 10 files changed, 25 insertions(+), 32 deletions(-)

a28552f78d6890ea341e3a36031266350f811c60 diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index e10d25d..09a6475 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -29,7 +29,7 @@
 #include <asm/processor.h>
 #include <asm/sections.h>
 
-int split_tlb __read_mostly;
+static int split_tlb __read_mostly;
 int dcache_stride __read_mostly;
 int icache_stride __read_mostly;
 EXPORT_SYMBOL(dcache_stride);
@@ -396,7 +396,7 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
+static void clear_user_page_asm(void *page, unsigned long vaddr)
 {
 	/* This function is implemented in assembly in pacache.S */
 	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
@@ -407,7 +407,7 @@ void clear_user_page_asm(void *page, unsigned long vaddr)
 }
 
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
-int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
+static int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
 void __init parisc_setup_cache_timing(void)
 {
@@ -440,7 +440,6 @@ void __init parisc_setup_cache_timing(void)
 }
 
 extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
 
 void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 {
diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 2ca654b..09419bd 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -38,6 +38,8 @@
 #include <asm/pdc.h>
 #include <asm/parisc-device.h>
 
+static struct bus_type parisc_bus_type;
+
 /* See comments in include/asm-parisc/pci.h */
 struct hppa_dma_ops *hppa_dma_ops __read_mostly;
 EXPORT_SYMBOL(hppa_dma_ops);
@@ -406,7 +408,7 @@ static void setup_bus_id(struct parisc_device *padev)
 	sprintf(output, "%u", (unsigned char) padev->hw_path);
 }
 
-struct parisc_device * create_tree_node(char id, struct device *parent)
+static struct parisc_device *create_tree_node(char id, struct device *parent)
 {
 	struct parisc_device *dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (!dev)
@@ -582,7 +584,7 @@ static struct device_attribute parisc_device_attrs[] = {
 	__ATTR_NULL,
 };
 
-struct bus_type parisc_bus_type = {
+static struct bus_type parisc_bus_type = {
 	.name = "parisc",
 	.match = parisc_generic_match,
 	.dev_attrs = parisc_device_attrs,
@@ -769,7 +771,7 @@ EXPORT_SYMBOL(device_to_hwpath);
 static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high,
                             struct device *parent);
 
-void walk_lower_bus(struct parisc_device *dev)
+static void walk_lower_bus(struct parisc_device *dev)
 {
 	unsigned long io_io_low, io_io_high;
 
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 7177a6c..ca6a00f 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -95,9 +95,9 @@ int parisc_narrow_firmware __read_mostly = 1;
  */
 
 #ifdef CONFIG_64BIT
-long real64_call(unsigned long function, ...);
+static long real64_call(unsigned long function, ...);
 #endif
-long real32_call(unsigned long function, ...);
+static long real32_call(unsigned long function, ...);
 
 #ifdef CONFIG_64BIT
 #   define MEM_PDC (unsigned long)(PAGE0->mem_pdc_hi) << 32 | PAGE0->mem_pdc
@@ -1404,7 +1404,7 @@ struct narrow_stack {
 	/* in reality, there's nearly 8k of stack after this */
 };
 
-long real32_call(unsigned long fn, ...)
+static long real32_call(unsigned long fn, ...)
 {
 	va_list args;
 	extern struct narrow_stack real_stack;
@@ -1455,7 +1455,7 @@ struct wide_stack {
 	/* in reality, there's nearly 8k of stack after this */
 };
 
-long real64_call(unsigned long fn, ...)
+static long real64_call(unsigned long fn, ...)
 {
 	va_list args;
 	extern struct wide_stack real64_stack;
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index ccb6809..6da6470 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -66,6 +66,7 @@ static void pdc_console_write(struct console *co, const char *s, unsigned count)
 	spin_unlock_irqrestore(&pdc_console_lock, flags);
 }
 
+#if 0
 int pdc_console_poll_key(struct console *co)
 {
 	int c;
@@ -77,6 +78,7 @@ int pdc_console_poll_key(struct console *co)
 
 	return c;
 }
+#endif  /*  0  */
 
 static int pdc_console_setup(struct console *co, char *options)
 {
diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index 89d6d5a..20916f5 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -70,7 +70,7 @@ struct rdr_tbl_ent {
 static int perf_processor_interface __read_mostly = UNKNOWN_INTF;
 static int perf_enabled __read_mostly;
 static spinlock_t perf_lock;
-struct parisc_device *cpu_device __read_mostly;
+static struct parisc_device *cpu_device __read_mostly;
 
 /* RDRs to write for PCX-W */
 static const int perf_rdrs_W[] =
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 39e7c5a..c9a7ff1 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -62,7 +62,7 @@ EXPORT_SYMBOL(parisc_bus_is_phys);
 unsigned long parisc_vmerge_boundary = 0;
 unsigned long parisc_vmerge_max_size = 0;
 
-void __init setup_cmdline(char **cmdline_p)
+static void __init setup_cmdline(char **cmdline_p)
 {
 	extern unsigned int boot_args[];
 
@@ -89,7 +89,7 @@ void __init setup_cmdline(char **cmdline_p)
 }
 
 #ifdef CONFIG_PA11
-void __init dma_ops_init(void)
+static void __init dma_ops_init(void)
 {
 	switch (boot_cpu_data.cpu_type) {
 	case pcx:
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 85fc775..8581f7f 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -59,8 +59,6 @@ static int smp_debug_lvl = 0;
 #define smp_debug(lvl, ...)
 #endif /* DEBUG_SMP */
 
-DEFINE_SPINLOCK(smp_lock);
-
 volatile struct task_struct *smp_init_current_idle_task;
 
 static volatile int cpu_now_booting __read_mostly = 0;	/* track which CPU is booting */
@@ -82,7 +80,7 @@ cpumask_t cpu_possible_map __read_mostly = CPU_MASK_ALL;	/* Bitmap of Present CP
 EXPORT_SYMBOL(cpu_online_map);
 EXPORT_SYMBOL(cpu_possible_map);
 
-DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
+static DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
 
 struct smp_call_struct {
 	void (*func) (void *info);
@@ -450,7 +448,7 @@ void __init smp_callin(void)
 /*
  * Bring one cpu online.
  */
-int __cpuinit smp_boot_one_cpu(int cpuid)
+static int __cpuinit smp_boot_one_cpu(int cpuid)
 {
 	struct task_struct *idle;
 	long timeout;
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 675f1d0..a168503 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -51,8 +51,8 @@
 DEFINE_SPINLOCK(pa_dbit_lock);
 #endif
 
-void parisc_show_stack(struct task_struct *t, unsigned long *sp,
-	struct pt_regs *regs);
+static void parisc_show_stack(struct task_struct *t, unsigned long *sp,
+			      struct pt_regs *regs);
 
 static int printbinary(char *buf, unsigned long x, int nbits)
 {
@@ -186,8 +186,8 @@ static void do_show_stack(struct unwind_frame_info *info)
 	printk("\n");
 }
 
-void parisc_show_stack(struct task_struct *task, unsigned long *sp,
-	struct pt_regs *regs)
+static void parisc_show_stack(struct task_struct *task, unsigned long *sp,
+			      struct pt_regs *regs)
 {
 	struct unwind_frame_info info;
 	struct task_struct *t;
@@ -297,11 +297,6 @@ KERN_CRIT "                     ||     ||\n");
 	do_exit(SIGSEGV);
 }
 
-int syscall_ipi(int (*syscall) (struct pt_regs *), struct pt_regs *regs)
-{
-	return syscall(regs);
-}
-
 /* gdb uses break 4,8 */
 #define GDB_BREAK_INSN 0x10004
 static void handle_gdb_break(struct pt_regs *regs, int wot)
@@ -354,7 +349,7 @@ static void default_trap(int code, struct pt_regs *regs)
 void (*cpu_lpmc) (int code, struct pt_regs *regs) __read_mostly = default_trap;
 
 
-void transfer_pim_to_trap_frame(struct pt_regs *regs)
+static void transfer_pim_to_trap_frame(struct pt_regs *regs)
 {
     register int i;
     extern unsigned int hpmc_pim_data[];
@@ -820,7 +815,7 @@ void handle_interruption(int code, struct pt_regs *regs)
 }
 
 
-int __init check_ivt(void *iva)
+static int __init check_ivt(void *iva)
 {
 	extern const u32 os_hpmc[];
 	extern const u32 os_hpmc_end[];
diff --git a/include/asm-parisc/cache.h b/include/asm-parisc/cache.h
index 32c2cca..56205d6 100644
--- a/include/asm-parisc/cache.h
+++ b/include/asm-parisc/cache.h
@@ -39,7 +39,6 @@ unsigned long alloc_sid(void);
 struct seq_file;
 extern void show_cache_info(struct seq_file *m);
 
-extern int split_tlb;
 extern int dcache_stride;
 extern int icache_stride;
 extern struct pdc_cache_info cache_info;
diff --git a/include/asm-parisc/parisc-device.h b/include/asm-parisc/parisc-device.h
index 7aa13f2..82436f7 100644
--- a/include/asm-parisc/parisc-device.h
+++ b/include/asm-parisc/parisc-device.h
@@ -59,6 +59,4 @@ parisc_get_drvdata(struct parisc_device *d)
 	return dev_get_drvdata(&d->dev);
 }
 
-extern struct bus_type parisc_bus_type;

From - Thu Nov 08 21:02:23 2018
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From: Adrian Bunk <bunk@kernel.org>
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Subject: [2.6 patch] parisc/lib/: make code static
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This patch makes the following needlessly global code static:
- iomap.c: struct iomap_ops[]
- memcpy.c: pa_memcpy()

Signed-off-by: Adrian Bunk <bunk@kernel.org>

---

 arch/parisc/lib/iomap.c  |    2 +-
 arch/parisc/lib/memcpy.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

45e7cd0b2c678dda4f5ba4ac6d0ed628df9381bd diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index 9abed07..5069e8b 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -261,7 +261,7 @@ static const struct iomap_ops iomem_ops = {
 	iomem_write32r,
 };
 
-const struct iomap_ops *iomap_ops[8] = {
+static const struct iomap_ops *iomap_ops[8] = {
 	[0] = &ioport_ops,
 	[7] = &iomem_ops
 };
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index 2d68431..bbda909 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -275,7 +275,7 @@ handle_store_error:
 
 
 /* Returns 0 for success, otherwise, returns number of bytes not transferred. */
-unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
 {
 	register unsigned long src, dst, t1, t2, t3;
 	register unsigned char *pcs, *pcd;

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wierd, though.

rubisher <rubisher <at> scarlet.be> writes:

> 
> Hello all,
> 
> looking at this hunk:
> void CCIO_INLINE
> ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
>                     unsigned long hints)
> {
>          register unsigned long pa;
>          register unsigned long ci; /* coherent index */
> 
>          /* We currently only support kernel addresses */
>          BUG_ON(sid != KERNEL_SPACE);
> 
no pb to get rid of this BUG_ON(): each place I see it called sid == KERNEL_SPACE
the optimized produced code looks so Ok

[snip]
> 
> But this time, it seems not consider assembly:
>          asm volatile ("lci %%r0(%%sr1, %1), %0" : "=r" (ci) : "r" (vba));
>          asm volatile ("extru %1,19,12,%0" : "+r" (ci) : "r" (ci));
>          asm volatile ("depw  %1,15,12,%0" : "+r" (pa) : "r" (ci));
> 
> as a 'volatile' block and insert line 1c:
> This could may be solved by re-write as an one 'volatile' asm block like:
> 	asm volatile (
> 	"lci %%r0(%%sr1, %1), %1"
> 	"\textru        %1,19,12,%1\n"
> 	"\tdepw         %1,15,12,%0\n"
> 	: "=r" (pa)
> 	: "r" (vba));
> 
> and even add a clobber 'memory'
> 	asm volatile (
> 	"lci %%r0(%%sr1, %1), %1"
> 	"\textru        %1,19,12,%1\n"
> 	"\tdepw         %1,15,12,%0\n"
> 	: "=r" (pa)
> 	: "r" (vba)
> 	: "memory");
> 
> But I have no clue how to restore BUG_ON() and avoid wrong optimization?
> 
But here is what is very wierd, I tested severall re-writen on this code amoung
latest:
	asm volatile (
	"lci %%r0(%%sr1, %1), %%r19"
	"\textru        %%r19,19,12,%%r19\n"
	"\tdepw         %%r19,15,12,%0\n"
	: "=r" (pa)
	: "r" (vba)
	: "r19" );

but this system failed to boot on ncr_attach: pim info seems to point out to
this place:
PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp =   Mon Jun  16 09:50:32 GMT 2008    (20:08:06:16:09:50:32)

HPMC Chassis Codes = 0xcbf0  0x5002  0x7d03  0x5402  0x5508  0xcbf2  
                     0xcbfc  

General Registers 0 - 31
00-03  0000000000000000  18711a0000001194  0000000010514bf8  000000001fd48000
04-07  0000000000000003  0000000010520308  000000001fdf2400  000000001fc20414
08-11  000000001049f3d8  000000001fc20088  000000001051ce20  00000000104e03cc
12-15  000000001fd4802c  000000001fdf2704  0000000010425000  0000000010425000
16-19  0000000010403b78  0000000010403ba8  0000000010403bb8  0000000000024800
20-23  00000000000a142c  00000000000f4240  000000001fd48000  0000000000001458
24-27  0000000000024800  0000000000000000  000000001fd48000  000000001047de20
28-31  0000000000000001  61c4680000004650  000000001fc20540  000000001029bfdc

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  00000000000000c0  000000000000001d
12-15  0000000000000000  0000000000000000  0000000000110000  00000000e1000000
16-19  000000248ca1a027  0000000000000000  0000000010514c6c  00000000d39c1bfd
20-23  000000009227ffc4  000000000102482c  000000ff0004f90f  0000000080000000
24-27  00000000004c2000  00000000004c2000  00000000aaaaaaaa  00000000aaaaaaaa
28-31  00000000000003d0  0000000011111111  000000001fc20000  0000000011111111

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000010514c70
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00305004
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000fff1004817
System Requestor Address     = 0xfffffffffffa0000
Check Summary                = 0x8000000810284000
Available Memory             = 0x0000000010000000
CPU Diagnose Register 2      = 0x0301000004000004
CPU Status Register 0        = 0x1440020000000000
CPU Status Register 1        = 0x8000000800000000
SADD LOG                     = 0x0000000100000001
Read Short LOG               = 0xc10010fff1004817

-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  000000000aba9500  00000000f005d12c  0000002d110b5065
04-07  0000000000000000  fffffffff0101120  00000000000f4240  0000000000000005
08-11  00000000f0102cd4  000000001fc20088  000000001051ce20  00000000104e03cc
12-15  000000001fd4802c  000000001fdf2704  0000000010425000  0000000010425000
16-19  0000000010403b78  0000000010403ba8  0000000010403bb8  fffffffff0160007
20-23  0000000000000001  00000000000f4240  000000001fd48000  0000000000000000
24-27  0000000000000000  0000000000000000  0000002d13066c03  fffffffff0102400
28-31  0000002d1bc5e565  0301000004000004  fffffffff0102e30  0301000004000004

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  00000000000000c0  000000000000001d
12-15  0000000000000000  0000000000000000  000000fff0010000  0000000000000000
16-19  0000002d130a7a0d  0000000000000000  00000000f005d154  000000000804025c
20-23  000000009227c3c0  c000000040902e44  0000000000291008  0000000080000000
24-27  00000000004c2000  00000000004c2000  00000000aaaaaaaa  00000000aaaaaaaa
28-31  00000000000003d0  0000000011111111  000000001fc20000  0000000011111111

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x00000000f005d134
CPU State                    = 0x9e000001


Memory Error Log Information:

Timestamp =   Mon Jun  16 09:50:32 GMT 2008    (20:08:06:16:09:50:32)

                    Trans  Addr                   Central Bus
Status  Requestor     id    par  CP  AD  DV       Address/Data
------  ----------  -----  ----  --  --  --  ---------------------

 0x14   0xfffa0000   0x00   0x0   0   0   0  0x00000000 0x00000000

                                                    Memory
                                  ECC Reg     Address      Data
                                 ----------  ---------- ----------

                                 0x00000000  0x00000000 0x00000000
                                                        0x00000000
                                                        0x00000000
                                                        0x00000000
                                                        0x00000000

I/O Module Error Log Information:

Timestamp =   Mon Jun  16 09:50:32 GMT 2008    (20:08:06:16:09:50:32)

Bus    HPA       Module Type      Path  Slt Md Sev  Estat Requestor  Responder
--- ---------- ---------------- -------- -- -- ---- ----- ---------- ----------
 0  0xfff88000 I/O Adapter      8         2  0  he   0x04 0xf1004000 0x000a1420
 0  0xfff8a000 I/O Adapter      10        2  2  he   0x0d 0x00000000 0x00000000

IO Bus Converter Log
--------------------

IOA0 HPA            = 0xfff88000
IOA0 UBC_IO_CONTROL = 0x00020080
GSC1 HPA            = 0xf1000001
IOA0 IO_IO_LO       = 0xf0800000
IOA0 IO_IO_HI       = 0xf17f0000
IOA0 IO_IO_LO_HV    = 0xfc000000
IOA0 IO_IO_HI_HV    = 0xfff80000

IOA1 HPA            = 0xfff8a000
IOA1 UBC_IO_CONTROL = 0x00020080
GSC2 HPA            = 0xf1800001
IOA1 IO_IO_LO       = 0xf1800000
IOA1 IO_IO_HI       = 0xf2000000
IOA1 IO_IO_LO_HV    = 0x00000000
IOA1 IO_IO_HI_HV    = 0x00000000

while IAOQ point to
IIA Offset                   = 0x0000000010514c70
...

e.g. IAOQ = 0x0000000010514c70

Parse IAOQ = 0x0000000010514c70 for CPU[0]

Func: ncr_attach, Off: 0xc4c, Addr: 0x10514c70

	...
10514c60:	80 95 20 28 	cmpb,= r21,r4,10514c7c <.L1517+0x660>

	...
10514c70:	87 80 3f d7 	cmpib,=,n 0,ret0,10514c60 <.L1517+0x644>
10514c74:	34 84 00 02 	ldo 1(r4),r4
10514c78:	08 03 02 5a 	copy r3,r26
10514c7c:	34 19 00 c8 	ldi 64,r25

Any idea what I missed in this chg?

Tia,
r.

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From - Thu Nov 08 21:02:23 2018
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On Sat, Jun 14, 2008 at 11:36 AM, Helge Deller <deller@gmx.de> wrote:
> I'm wondering if this patch might help people who are seeing locking
> problems on SMP boxes ?
> Helge
>
> diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h
> index ee80c92..4752684 100644
> --- a/include/asm-parisc/system.h
> +++ b/include/asm-parisc/system.h
> @@ -168,8 +168,9 @@ static inline void set_eiem(unsigned long val)
>  /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
>  #define __ldcw(a) ({                                           \
>        unsigned __ret;                                         \
> -       __asm__ __volatile__(__LDCW " 0(%1),%0"                 \
> -               : "=r" (__ret) : "r" (a));                      \
> +       __asm__ __volatile__(__LDCW " 0(%2),%0"                 \
> +                       : "=r" (__ret), "=m" (*(a))             \
> +                       : "r" (a), "m" (*(a))   );              \
>        __ret;                                                  \
>  })

You don't want to do that, the compiler might hold "=m" (*(a)) in a
temporary memory location.

e.g.
temp_mem = *a;
reg2 = &temp_mem;
... operation ...
*a = temp_mem;

You would be atomic with regards to the store to temp_mem, but not a.
Infact this could always be the case.

I'm now of the opinion that we need a "memory" clobber in the original
expression to prevent this from ever happening.

Cheers,
Carlos.
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Subject: [PATCH] don't activate unsupported GSC STI cards on HPPA
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On HPPA there exists some older GSC graphics cards, which
need special graphic-card-BIOS patching to become supported.
Since we don't have yet implemented the patching, it's better
to detect such cards in advance, inform to the user that there 
are known problems and to not activate the card.

Problematic GSC cards and BIOS versions are:
* Hyperdrive/Hyperbowl (A4071A) graphics card series: 
   * ID = 0x2BCB015A (Version 8.04/8)
   * ID = 0x2BCB015A (Version 8.04/11)
* Thunder 1 VISUALIZE 48 card: 
   * ID = 0x2F23E5FC (Version 8.05/9)
* Thunder 2 VISUALIZE 48 XP card: 
   * ID = 0x2F8D570E (Version 8.05/12)
* Some Hyperion and ThunderHawk GSC cards

Further details are described here:
http://parisc-linux.org/faq/graphics-howto.html


Signed-off-by: Helge Deller <deller@gmx.de>


 sticore.c |   30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)


diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index e9ab657..e5eec26 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -24,6 +24,7 @@
 #include <asm/hardware.h>
 #include <asm/parisc-device.h>
 #include <asm/cacheflush.h>
+#include <asm/grfioctl.h>
 
 #include "../sticore.h"
 
@@ -728,6 +729,7 @@ sti_read_rom(int wordmode, struct sti_struct *sti, unsigned long address)
 {
 	struct sti_cooked_rom *cooked;
 	struct sti_rom *raw = NULL;
+	unsigned long revno;
 
 	cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
 	if (!cooked)
@@ -770,9 +772,35 @@ sti_read_rom(int wordmode, struct sti_struct *sti, unsigned long address)
 	sti->graphics_id[1] = raw->graphics_id[1];
 	
 	sti_dump_rom(raw);
-	
+
+	/* check if the ROM routines in this card are compatible */
+	if (wordmode || sti->graphics_id[1] != 0x09A02587)
+		goto ok;
+
+	revno = (raw->revno[0] << 8) | raw->revno[1];
+
+	switch (sti->graphics_id[0]) {
+	case S9000_ID_HCRX:
+		/* HyperA or HyperB ? */
+		if (revno == 0x8408 || revno == 0x840b)
+			goto msg_not_supported;
+		break;
+	case CRT_ID_THUNDER:
+		if (revno == 0x8509)
+			goto msg_not_supported;
+		break;
+	case CRT_ID_THUNDER2:
+		if (revno == 0x850c)
+			goto msg_not_supported;
+	}
+ok:
 	return 1;
 
+msg_not_supported:
+	printk(KERN_ERR "Sorry, this GSC/STI card is not yet supported.\n");
+	printk(KERN_ERR "Please see http://parisc-linux.org/faq/"
+			"graphics-howto.html for more info.\n");
+	/* fall through */
 out_err:
 	kfree(raw);
 	kfree(cooked);
--
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From - Thu Nov 08 21:02:23 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: ldcw inline assembler patch
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	John David Anglin <dave.anglin@nrc.ca>
To: Carlos O'Donell <carlos@systemhalted.org>
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Hi Carlos,

Carlos O'Donell wrote:
> On Sat, Jun 14, 2008 at 11:36 AM, Helge Deller <deller@gmx.de> wrote:
>> I'm wondering if this patch might help people who are seeing locking
>> problems on SMP boxes ?
>> Helge
>>
>> diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h
>> index ee80c92..4752684 100644
>> --- a/include/asm-parisc/system.h
>> +++ b/include/asm-parisc/system.h
>> @@ -168,8 +168,9 @@ static inline void set_eiem(unsigned long val)
>>  /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
>>  #define __ldcw(a) ({                                           \
>>        unsigned __ret;                                         \
>> -       __asm__ __volatile__(__LDCW " 0(%1),%0"                 \
>> -               : "=r" (__ret) : "r" (a));                      \
>> +       __asm__ __volatile__(__LDCW " 0(%2),%0"                 \
>> +                       : "=r" (__ret), "=m" (*(a))             \
>> +                       : "r" (a), "m" (*(a))   );              \
>>        __ret;                                                  \
>>  })
> 
> You don't want to do that, the compiler might hold "=m" (*(a)) in a
> temporary memory location.
> 
> e.g.
> temp_mem = *a;
> reg2 = &temp_mem;
> ... operation ...
> *a = temp_mem;
> 
> You would be atomic with regards to the store to temp_mem, but not a.
> Infact this could always be the case.
> 
> I'm now of the opinion that we need a "memory" clobber in the original
> expression to prevent this from ever happening.

So, your proposal is (copy-and-pasted in here) the following ?

diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h
index ee80c92..daeae39 100644
--- a/include/asm-parisc/system.h
+++ b/include/asm-parisc/system.h
@@ -169,7 +169,7 @@ static inline void set_eiem(unsigned long val)
  #define __ldcw(a) ({                                           \
         unsigned __ret;                                         \
         __asm__ __volatile__(__LDCW " 0(%1),%0"                 \
-               : "=r" (__ret) : "r" (a));                      \
+               : "=r" (__ret) : "r" (a) : "memory" );          \
         __ret;                                                  \
  })
--
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: ldcw inline assembler patch
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On Mon, Jun 16, 2008 at 5:06 PM, Helge Deller <deller@gmx.de> wrote:
> So, your proposal is (copy-and-pasted in here) the following ?
>
> diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h
> index ee80c92..daeae39 100644
> --- a/include/asm-parisc/system.h
> +++ b/include/asm-parisc/system.h
> @@ -169,7 +169,7 @@ static inline void set_eiem(unsigned long val)
>  #define __ldcw(a) ({                                           \
>        unsigned __ret;                                         \
>        __asm__ __volatile__(__LDCW " 0(%1),%0"                 \
> -               : "=r" (__ret) : "r" (a));                      \
> +               : "=r" (__ret) : "r" (a) : "memory" );          \
>        __ret;                                                  \
>  })

Yes. The asm should clobber memory thus forcing the compiler to avoid
memory temporaries.

Dave may have other opinions.

I think this solution is the safest.

Cheers,
Carlos.
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From - Thu Nov 08 21:02:23 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: ldcw inline assembler patch
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
	John David Anglin <dave.anglin@nrc.ca>
To: Carlos O'Donell <carlos@systemhalted.org>
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On Mon, Jun 16, 2008 at 05:54:24PM -0400, Carlos O'Donell wrote:
> On Mon, Jun 16, 2008 at 5:06 PM, Helge Deller <deller@gmx.de> wrote:
> > So, your proposal is (copy-and-pasted in here) the following ?
> >
> > diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h
> > index ee80c92..daeae39 100644
> > --- a/include/asm-parisc/system.h
> > +++ b/include/asm-parisc/system.h
> > @@ -169,7 +169,7 @@ static inline void set_eiem(unsigned long val)
> >  #define __ldcw(a) ({                                           \
> >        unsigned __ret;                                         \
> >        __asm__ __volatile__(__LDCW " 0(%1),%0"                 \
> > -               : "=r" (__ret) : "r" (a));                      \
> > +               : "=r" (__ret) : "r" (a) : "memory" );          \
> >        __ret;                                                  \
> >  })
> 
> Yes. The asm should clobber memory thus forcing the compiler to avoid
> memory temporaries.
> 

It shouldn't need to, since we're only ever accessing one word (the one
specified in the operand.)

Otherwise basically every inline asm everywhere ever is going to need a
memory clobber, and that's just BROKEN.

r, Kyle
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From - Thu Nov 08 21:02:23 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: ldcw inline assembler patch
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On Mon, Jun 16, 2008 at 05:57:26PM -0400, Kyle McMartin wrote:
> On Mon, Jun 16, 2008 at 05:54:24PM -0400, Carlos O'Donell wrote:
> > On Mon, Jun 16, 2008 at 5:06 PM, Helge Deller <deller@gmx.de> wrote:
> > > So, your proposal is (copy-and-pasted in here) the following ?
> > >
> > > diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h
> > > index ee80c92..daeae39 100644
> > > --- a/include/asm-parisc/system.h
> > > +++ b/include/asm-parisc/system.h
> > > @@ -169,7 +169,7 @@ static inline void set_eiem(unsigned long val)
> > >  #define __ldcw(a) ({                                           \
> > >        unsigned __ret;                                         \
> > >        __asm__ __volatile__(__LDCW " 0(%1),%0"                 \
> > > -               : "=r" (__ret) : "r" (a));                      \
> > > +               : "=r" (__ret) : "r" (a) : "memory" );          \
> > >        __ret;                                                  \
> > >  })
> > 
> > Yes. The asm should clobber memory thus forcing the compiler to avoid
> > memory temporaries.
> > 
> 
> It shouldn't need to, since we're only ever accessing one word (the one
> specified in the operand.)
> 
> Otherwise basically every inline asm everywhere ever is going to need a
> memory clobber, and that's just BROKEN.
>

Willy points out the caching of the locked data across the lock, but we
surround the inline in a memory barrier, so we're fine.

r, Kyle
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From - Thu Nov 08 21:02:23 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: ldcw inline assembler patch
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	John David Anglin <dave.anglin@nrc.ca>
To: Kyle McMartin <kyle@mcmartin.ca>
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On Mon, Jun 16, 2008 at 05:57:26PM -0400, Kyle McMartin wrote:
> On Mon, Jun 16, 2008 at 05:54:24PM -0400, Carlos O'Donell wrote:
> > On Mon, Jun 16, 2008 at 5:06 PM, Helge Deller <deller@gmx.de> wrote:
> > > So, your proposal is (copy-and-pasted in here) the following ?
> > >
> > > diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h
> > > index ee80c92..daeae39 100644
> > > --- a/include/asm-parisc/system.h
> > > +++ b/include/asm-parisc/system.h
> > > @@ -169,7 +169,7 @@ static inline void set_eiem(unsigned long val)
> > >  #define __ldcw(a) ({                                           \
> > >        unsigned __ret;                                         \
> > >        __asm__ __volatile__(__LDCW " 0(%1),%0"                 \
> > > -               : "=r" (__ret) : "r" (a));                      \
> > > +               : "=r" (__ret) : "r" (a) : "memory" );          \
> > >        __ret;                                                  \
> > >  })
> > 
> > Yes. The asm should clobber memory thus forcing the compiler to avoid
> > memory temporaries.
> 
> It shouldn't need to, since we're only ever accessing one word (the one
> specified in the operand.)
> 
> Otherwise basically every inline asm everywhere ever is going to need a
> memory clobber, and that's just BROKEN.

Carlos' and Helge's point (I think) is that the __ldcw() doesn't clobber
memory, so gcc can cache other things in registers across a call to
__ldcw().  While this is true, our definition of __raw_spin_lock() has
two calls to mb() in it, which is defined to clobber memory.

The only users of __ldcw() are in spinlock.h which has the mb()s in
place.  I don't think there's a problem here.

-- 
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: ldcw inline assembler patch
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On Mon, Jun 16, 2008 at 6:05 PM, Matthew Wilcox <matthew@wil.cx> wrote:
> The only users of __ldcw() are in spinlock.h which has the mb()s in
> place.  I don't think there's a problem here.

Given:
mb()
__ldcw(a)
mb()

What stops the compiler from doing?

mb()
*stack_slot = *a
reg1 = *stack_slot
reg2 = __ldcw(reg1)
*a = *stack_slot
mb()

Memory is consistent before and after the memory barriers, but the
operation is not atomic?

While this seems stupid, the compile may create a memory temporary to
shuffle things around.

Cheers,
Carlos.
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: parisc: pcibios_init_bus() isn't called
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On Sun, Jun 15, 2008 at 07:13:27PM +0300, Adrian Bunk wrote:
> arch/parisc/kernel/pci.c:pcibios_init_bus() never gets called - this
> doesn't seem to be intentionally?

I think this is accidentally abandoned code and introduced here:
    http://lkml.org/lkml/2001/12/22/43

So it was called from pci_do_scan_bus(). Can you track down when this
was removed from pci_do_scan_bus() ?

But it was once used by parisc port:
    http://lists.parisc-linux.org/pipermail/parisc-linux/2001-June/037259.html

and then perhaps got removed soon after in the generic code:
    http://www.cs.helsinki.fi/linux/linux-kernel/2003-01/0388.html

But I'm not finding the exact patch that removed it.

thanks,
grant
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: ldcw inline assembler patch
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On Mon, Jun 16, 2008 at 6:14 PM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> Given:
> mb()
> __ldcw(a)
> mb()
>
> What stops the compiler from doing?
>
> mb()
> *stack_slot = *a
> reg1 = *stack_slot

This is a mistake, and should read:

reg1 = stack_slot

e.g. Copy the address of the stack slot into reg1.

> reg2 = __ldcw(reg1)
> *a = *stack_slot
> mb()
>
> Memory is consistent before and after the memory barriers, but the
> operation is not atomic?
>
> While this seems stupid, the compile may create a memory temporary to
> shuffle things around.

The compiler creates memory temporaries all the times and expects the
optimizers to see that the temporaries are not needed. However,
sometimes the temporaries aren't removed.

Cheers,
Carlos.
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: ldcw inline assembler patch
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On Mon, Jun 16, 2008 at 9:56 PM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> The compiler creates memory temporaries all the times and expects the
> optimizers to see that the temporaries are not needed. However,
> sometimes the temporaries aren't removed.

It turns out this should never happen because raw_spinlock_t->lock is volatile.

Therefore the memory clobber is not required.

The memory barriers will prevent code from being moved before the lock
or past the unlock.

Cheers,
Carlos.
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From: Adrian Bunk <bunk@kernel.org>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: architectures with ARCH_SUPPORTS_AOUT but no binfmt_aout
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Cc: Peter Korsgaard <jacmet@sunsite.dk>, linux-kernel@vger.kernel.org,
	sam@ravnborg.org, dhowells@redhat.com, andi@firstfloor.org,
	"Kirill A. Shutemov" <k.shutemov@gmail.com>,
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	grundler@parisc-linux.org, linux-parisc@vger.kernel.org,
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To: David Woodhouse <dwmw2@infradead.org>
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On Mon, Jun 16, 2008 at 01:26:54PM +0100, David Woodhouse wrote:
>...
> Actually, I think we can drop the preceding patch too -- it's not
> necessary to fix the regression in 2.6.26, and dhowells suggests that we
> might still want to use ARCH_SUPPORTS_AOUT, by making BINFMT_AOUT depend
> on it instead of that hard-coded list of architectures.
> 
> If we do that, then ARCH_SUPPORTS_AOUT would need to be defined on a
> different set of architectures to the ones it's currently defined on --
> so I don't really want to go there before 2.6.26. I'll push just the
> parts which were included in the mail I just sent.
> 
> Why _are_ there architectures which define ARCH_SUPPORTS_AOUT and have
> <asm/a.out.h> but don't support binfmt_aout, anyway? How does that make
> sense?

My guess would be that binfmt_aout isn't actually used there.

The affected architectures are:
- h8300
- m32r
- parisc
- sh
- v850

v850 is broken beyond repair, and I hope my patch to remove the 
architecture will make it into 2.6.27.

For the other 4 architectures I have Cc'ed the architecture maintainers.

> dwmw2

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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From - Thu Nov 08 21:02:24 2018
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On Mon, Jun 16, 2008 at 04:41:07PM -0600, Grant Grundler wrote:
> On Sun, Jun 15, 2008 at 07:13:27PM +0300, Adrian Bunk wrote:
> > arch/parisc/kernel/pci.c:pcibios_init_bus() never gets called - this
> > doesn't seem to be intentionally?
> 
> I think this is accidentally abandoned code and introduced here:
>     http://lkml.org/lkml/2001/12/22/43

As far as I can see this patch never made it into the tree?

Ivan, do you remember details about this?

> So it was called from pci_do_scan_bus(). Can you track down when this
> was removed from pci_do_scan_bus() ?
> 
> But it was once used by parisc port:
>     http://lists.parisc-linux.org/pipermail/parisc-linux/2001-June/037259.html
> 
> and then perhaps got removed soon after in the generic code:
>     http://www.cs.helsinki.fi/linux/linux-kernel/2003-01/0388.html
> 
> But I'm not finding the exact patch that removed it.
> 
> thanks,
> grant

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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From - Thu Nov 08 21:02:24 2018
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Cc: Peter Korsgaard <jacmet@sunsite.dk>, linux-kernel@vger.kernel.org,
	sam@ravnborg.org, dhowells@redhat.com, andi@firstfloor.org,
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On Tue, 2008-06-17 at 11:42 +0300, Adrian Bunk wrote:
> 
> > Why _are_ there architectures which define ARCH_SUPPORTS_AOUT and have
> > <asm/a.out.h> but don't support binfmt_aout, anyway? How does that make
> > sense?
> 
> My guess would be that binfmt_aout isn't actually used there.
> 
> The affected architectures are:
> - h8300
> - m32r
> - parisc
> - sh
> - v850
> 
> v850 is broken beyond repair, and I hope my patch to remove the 
> architecture will make it into 2.6.27.
> 
> For the other 4 architectures I have Cc'ed the architecture maintainers.

There's another set of architectures which have <asm/a.out.h> but don't
define ARCH_SUPPORTS_AOUT. Including PowerPC.

I think we can probably get away with removing <asm/a.out.h> from every
architecture other than Alpha, ARM, m68k and x86, and killing
ARCH_SUPPORTS_AOUT completely.

Or maybe, as dhowells suggests, re-defining ARCH_SUPPORTS_AOUT to be set
only on Alpha, ARM, m68k and x86 (so BINFMT_AOUT can depend on it).

-- 
dwmw2


From - Thu Nov 08 21:02:24 2018
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On Tue, Jun 17, 2008 at 10:46:44AM +0100, David Woodhouse wrote:
> On Tue, 2008-06-17 at 11:42 +0300, Adrian Bunk wrote:
> > 
> > > Why _are_ there architectures which define ARCH_SUPPORTS_AOUT and have
> > > <asm/a.out.h> but don't support binfmt_aout, anyway? How does that make
> > > sense?
> > 
> > My guess would be that binfmt_aout isn't actually used there.
> > 
> > The affected architectures are:
> > - h8300
> > - m32r
> > - parisc
> > - sh
> > - v850
> > 
> > v850 is broken beyond repair, and I hope my patch to remove the 
> > architecture will make it into 2.6.27.
> > 
> > For the other 4 architectures I have Cc'ed the architecture maintainers.
> 
> There's another set of architectures which have <asm/a.out.h> but don't
> define ARCH_SUPPORTS_AOUT. Including PowerPC.
> 
> I think we can probably get away with removing <asm/a.out.h> from every
> architecture other than Alpha, ARM, m68k and x86, and killing
> ARCH_SUPPORTS_AOUT completely.

include/linux/a.out.h contains an #include <asm/a.out.h> and is exported 
to userspace...

> Or maybe, as dhowells suggests, re-defining ARCH_SUPPORTS_AOUT to be set
> only on Alpha, ARM, m68k and x86 (so BINFMT_AOUT can depend on it).

The pattern for this stuff is to provide a HAVE_AOUT kconfig variable 
that gets select'ed by these architectures.

> dwmw2

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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	"Kirill A. Shutemov" <k.shutemov@gmail.com>,
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On Tue, 2008-06-17 at 13:11 +0300, Adrian Bunk wrote:
> On Tue, Jun 17, 2008 at 10:46:44AM +0100, David Woodhouse wrote:
> > On Tue, 2008-06-17 at 11:42 +0300, Adrian Bunk wrote:
> > > 
> > > > Why _are_ there architectures which define ARCH_SUPPORTS_AOUT and have
> > > > <asm/a.out.h> but don't support binfmt_aout, anyway? How does that make
> > > > sense?
> > > 
> > > My guess would be that binfmt_aout isn't actually used there.
> > > 
> > > The affected architectures are:
> > > - h8300
> > > - m32r
> > > - parisc
> > > - sh
> > > - v850
> > > 
> > > v850 is broken beyond repair, and I hope my patch to remove the 
> > > architecture will make it into 2.6.27.
> > > 
> > > For the other 4 architectures I have Cc'ed the architecture maintainers.
> > 
> > There's another set of architectures which have <asm/a.out.h> but don't
> > define ARCH_SUPPORTS_AOUT. Including PowerPC.
> > 
> > I think we can probably get away with removing <asm/a.out.h> from every
> > architecture other than Alpha, ARM, m68k and x86, and killing
> > ARCH_SUPPORTS_AOUT completely.
> 
> include/linux/a.out.h contains an #include <asm/a.out.h> and is exported 
> to userspace...

Actually, it isn't -- but it _should_ be. But we can do it conditionally.
See http://git.infradead.org/users/dwmw2/aout-2.6.git?a=commitdiff;h=5939c6a41

> > Or maybe, as dhowells suggests, re-defining ARCH_SUPPORTS_AOUT to be set
> > only on Alpha, ARM, m68k and x86 (so BINFMT_AOUT can depend on it).
> 
> The pattern for this stuff is to provide a HAVE_AOUT kconfig variable 
> that gets select'ed by these architectures.

Or that; it doesn't really matter. I was about to remove
ARCH_SUPPORTS_AOUT completely, but David suggested that it could be used
to kill that hard-coded '(X86_32 || ALPHA || ARM || M68K)' in
fs/Kconfig.binfmt.


-- 
dwmw2

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Subject: Re: architectures with ARCH_SUPPORTS_AOUT but no binfmt_aout
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On Tue, Jun 17, 2008 at 11:18:45AM +0100, David Woodhouse wrote:
> On Tue, 2008-06-17 at 13:11 +0300, Adrian Bunk wrote:
> > On Tue, Jun 17, 2008 at 10:46:44AM +0100, David Woodhouse wrote:
> > > On Tue, 2008-06-17 at 11:42 +0300, Adrian Bunk wrote:
> > > > 
> > > > > Why _are_ there architectures which define ARCH_SUPPORTS_AOUT and have
> > > > > <asm/a.out.h> but don't support binfmt_aout, anyway? How does that make
> > > > > sense?
> > > > 
> > > > My guess would be that binfmt_aout isn't actually used there.
> > > > 
> > > > The affected architectures are:
> > > > - h8300
> > > > - m32r
> > > > - parisc
> > > > - sh
> > > > - v850
> > > > 
> > > > v850 is broken beyond repair, and I hope my patch to remove the 
> > > > architecture will make it into 2.6.27.
> > > > 
> > > > For the other 4 architectures I have Cc'ed the architecture maintainers.
> > > 
> > > There's another set of architectures which have <asm/a.out.h> but don't
> > > define ARCH_SUPPORTS_AOUT. Including PowerPC.
> > > 
> > > I think we can probably get away with removing <asm/a.out.h> from every
> > > architecture other than Alpha, ARM, m68k and x86, and killing
> > > ARCH_SUPPORTS_AOUT completely.
> > 
> > include/linux/a.out.h contains an #include <asm/a.out.h> and is exported 
> > to userspace...
> 
> Actually, it isn't -- but it _should_ be. But we can do it conditionally.
> See http://git.infradead.org/users/dwmw2/aout-2.6.git?a=commitdiff;h=5939c6a41
>...

It's already in Linus' tree.

Sorry, you are right, I missed that it takes care of exporting 
linux/a.out.h only when asm/a.out.h exists.

> dwmw2

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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On Tue, Jun 17, 2008 at 11:42:35AM +0300, Adrian Bunk wrote:
> On Mon, Jun 16, 2008 at 01:26:54PM +0100, David Woodhouse wrote:
> > Why _are_ there architectures which define ARCH_SUPPORTS_AOUT and have
> > <asm/a.out.h> but don't support binfmt_aout, anyway? How does that make
> > sense?
> 
> My guess would be that binfmt_aout isn't actually used there.

It was probably copied from MIPS in the early days of the parisc port
and nobody ever b othered to look at it before.  There was never an
a.out format for parisc.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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To: Adrian Bunk <bunk@kernel.org>
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On Tue, 2008-06-17 at 13:11 +0300, Adrian Bunk wrote:
> The pattern for this stuff is to provide a HAVE_AOUT kconfig variable 
> that gets select'ed by these architectures.

http://git.infradead.org/users/dwmw2/aout-2.6.git?a=commitdiff;h=a5db5179

Subject: [PATCH] Introduce HAVE_AOUT symbol to remove hard-coded arch list for BINFMT_AOUT

HAVE_AOUT doesn't quite do the same thing as the recently removed
ARCH_SUPPORTS_AOUT config option. That was set even on platforms where
binfmt_aout isn't supported, although it's not entirely clear why.

So it's best just to introduce a new symbol, handled consistently with
other similar HAVE_xxx symbols; with a simple 'select' the arch Kconfig.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
---
 arch/alpha/Kconfig |    1 +
 arch/arm/Kconfig   |    1 +
 arch/m68k/Kconfig  |    1 +
 arch/x86/Kconfig   |    1 +
 fs/Kconfig.binfmt  |    5 ++++-
 5 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 207196e..f80e548 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -7,6 +7,7 @@ config ALPHA
 	default y
 	select HAVE_IDE
 	select HAVE_OPROFILE
+	select HAVE_AOUT
 	help
 	  The Alpha is a 64-bit general-purpose processor designed and
 	  marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 8fd3ab3..2be8bd7 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -14,6 +14,7 @@ config ARM
 	select HAVE_OPROFILE
 	select HAVE_KPROBES if (!XIP_KERNEL)
 	select HAVE_KRETPROBES if (HAVE_KPROBES)
+	select HAVE_AOUT
 	help
 	  The ARM series is a line of low-power-consumption RISC chip designs
 	  licensed by ARM Ltd and targeted at embedded applications and
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index bfb6395..83c4338 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -6,6 +6,7 @@ config M68K
 	bool
 	default y
 	select HAVE_IDE
+	select HAVE_AOUT
 
 config MMU
 	bool
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8fdaa70..bd066ae 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -25,6 +25,7 @@ config X86
 	select HAVE_KRETPROBES
 	select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64)
 	select HAVE_ARCH_KGDB if !X86_VOYAGER
+	select HAVE_AOUT if X86_32
 
 config ARCH_DEFCONFIG
 	string
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index 0999d5c..5592e08 100644
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -59,9 +59,12 @@ config BINFMT_SHARED_FLAT
 	help
 	  Support FLAT shared libraries
 
+config HAVE_AOUT
+       def_bool n
+
 config BINFMT_AOUT
 	tristate "Kernel support for a.out and ECOFF binaries"
-	depends on (X86_32 || ALPHA || ARM || M68K)
+	depends on HAVE_AOUT
 	---help---
 	  A.out (Assembler.OUTput) is a set of formats for libraries and
 	  executables used in the earliest versions of UNIX.  Linux used
-- 
1.5.5.1


-- 
dwmw2

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From - Thu Nov 08 21:02:24 2018
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Subject: Re: architectures with ARCH_SUPPORTS_AOUT but no binfmt_aout
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To: David Woodhouse <dwmw2@infradead.org>
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On Tue, Jun 17, 2008 at 12:28:33PM +0100, David Woodhouse wrote:
> On Tue, 2008-06-17 at 13:11 +0300, Adrian Bunk wrote:
> > The pattern for this stuff is to provide a HAVE_AOUT kconfig variable 
> > that gets select'ed by these architectures.
> 
> http://git.infradead.org/users/dwmw2/aout-2.6.git?a=commitdiff;h=a5db5179
> 
> Subject: [PATCH] Introduce HAVE_AOUT symbol to remove hard-coded arch list for BINFMT_AOUT
> 
> HAVE_AOUT doesn't quite do the same thing as the recently removed
> ARCH_SUPPORTS_AOUT config option. That was set even on platforms where
> binfmt_aout isn't supported, although it's not entirely clear why.
> 
> So it's best just to introduce a new symbol, handled consistently with
> other similar HAVE_xxx symbols; with a simple 'select' the arch Kconfig.

Looks good.
One minor issue...


> @@ -7,6 +7,7 @@ config ALPHA
>  	default y
>  	select HAVE_IDE
>  	select HAVE_OPROFILE
> +	select HAVE_AOUT
Sorting these alphabetically will result in less merge conflicts when the list grows.

	Sam
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To: Sam Ravnborg <sam@ravnborg.org>
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On Tue, 2008-06-17 at 14:23 +0200, Sam Ravnborg wrote:
> Sorting these alphabetically will result in less merge conflicts when
> the list grows.

Maybe, but it doesn't grow that fast -- and it's small enough that if I
add stuff in the middle, the context will cover the whole thing and
cause a merge conflict either way. And it isn't in alphabetical order
now either :)

-- 
dwmw2


From - Thu Nov 08 21:02:25 2018
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On Tue, Jun 17, 2008 at 01:29:09PM +0100, David Woodhouse wrote:
> On Tue, 2008-06-17 at 14:23 +0200, Sam Ravnborg wrote:
> > Sorting these alphabetically will result in less merge conflicts when
> > the list grows.
> 
> Maybe, but it doesn't grow that fast -- and it's small enough that if I
> add stuff in the middle, the context will cover the whole thing and
> cause a merge conflict either way. And it isn't in alphabetical order
> now either :)
I know and I know.
If someone did the janitorial effort and converted all the
per-arch defined symbols to one single definiton
and select the list would grow rapidly.

	Sam
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From: David Woodhouse <dwmw2@infradead.org>
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Subject: Re: architectures with ARCH_SUPPORTS_AOUT but no binfmt_aout
Date: Tue, 17 Jun 2008 13:54:21 +0100
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To: Sam Ravnborg <sam@ravnborg.org>
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On Tue, 2008-06-17 at 14:37 +0200, Sam Ravnborg wrote:
> I know and I know.
> If someone did the janitorial effort and converted all the
> per-arch defined symbols to one single definiton
> and select the list would grow rapidly.

http://git.infradead.org/users/dwmw2/aout-2.6.git?a=commitdiff;h=e75fd00c

They're still not in alphabetical order, but I haven't made it worse :)

-- 
dwmw2

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From - Thu Nov 08 21:02:25 2018
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From: "Joel Soete" <soete.joel@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Yet another inline asm worry: mtsp() macro (and may be other)?
Date: Thu, 19 Jun 2008 12:40:30 +0100
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Cc: "Helge Deller" <deller@gmx.de>,
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Hello all,

Grant, in a first approach I would like to address this post to you because
all start from ccio-dma (again yes) when I figure out that in fact gcc-4.2 rob
a part this driver code???

My first worry was about the form takes the resulting code of <ccio_io_pdir_entry>
for remind:
    0:   cb 39 a0 60     movb,<> r25,r25,38 <ccio_io_pdir_entry+0x38>
    4:   34 1c 00 00     ldi 0,ret0
    8:   00 1c 58 20     mtsp ret0,sr1
    c:   22 60 0e 01     ldil L%-10000000,r19
   10:   0a 78 0a 13     add,l r24,r19,r19
   14:   d6 77 0c 14     depw r23,31,12,r19
   18:   0f 53 12 88     stw r19,4(r26)
   1c:   07 00 53 1c     lci r0(sr1,r24),ret0
   20:   d3 9c 1a 74     extrw,u ret0,19,12,ret0
   24:   d7 3c 0e 14     depw ret0,15,12,r25
   28:   0f 59 12 80     stw r25,0(r26)
   2c:   07 40 12 80     fdc r0(r26)
   30:   00 00 04 00     sync
   34:   e8 40 c0 02     bv,n r0(rp)
   38:   03 ff e0 1f     break 1f,1fff
   3c:   e8 1f 1f f7     b,l,n 3c <ccio_io_pdir_entry+0x3c>,r0

The question was why sr1 is always set to 0 when it's actualy a function
parameter (iirc 2d arg i.e. r25?)

Fwiw removing BUG_ON() seems to fix this issue?

btw as far as it must be KERNEL_SPACE, couldn't we simplify stuff: removing
sid parameter and replace mtsp macro call with a simple asm volatile("mtsp
%%r0,%%sr1":::"memory")?

Then I look for all the call to function (ccio_io_pdir_entry) even thought
it's inligned with those mtsp and lci it would be easy to find it.
The C code learn me that it would call in ccio_map_single() and thanks with
iommu_helper.h in ccio_map_sg(). But objdump -D ccio-dma.o shows me only one
place where this code is used 
00000000 <ccio_map_single>:
[snip]
  84:   34 14 00 00     ldi 0,r20
  88:   00 14 58 20     mtsp r20,sr1
  8c:   0a a3 0a 13     add,l r3,r21,r19
  90:   d6 65 0c 14     depw r5,31,12,r19
  94:   0f 53 12 88     stw r19,4(r26)   
  98:   04 60 53 1c     lci r0(sr1,r3),ret0
  9c:   d3 9c 1a 74     extrw,u ret0,19,12,ret0
  a0:   d6 9c 0e 14     depw ret0,15,12,r20
  a4:   0f 54 12 80     stw r20,0(r26)
  a8:   07 40 12 80     fdc r0(r26)
  ac:   00 00 04 00     sync
[snip]

and not in ccio_map_sg() (even not a call to ccio_io_pdir_entry() in case he
didn't reach to inline it).

And the wonder is that my system d380 is even booting and running despite this
lake???

That said with gcc-4.3, I find well this code iin the 2 functions.
And here commes my worry about mtsp() macro: here is the resulting code with
gcc-4.3:
00000000 <ccio_map_sg>:
[snip]
__ 1a0:   34 1a 00 00     ldi 0,r26__
 1a4:   20 a0 02 00     ldil L%10000000,r5
 1a8:   8e 80 61 28     cmpib,> 0,r20,244 <ccio_map_sg+0x244>
 1ac:   20 40 0e 01     ldil L%-10000000,rp
 1b0:   86 c0 21 88     cmpib,= 0,r22,27c <ccio_map_sg+0x27c>
 1b4:   34 19 00 00     ldi 0,r25
 1b8:   0f e0 10 9c     ldw 0(r31),ret0
 1bc:   0d 80 10 94     ldw 0(r12),r20
 1c0:   d7 80 1c 1e     depwi 0,31,2,ret0
 1c4:   4b b3 00 20     ldw 10(ret1),r19
 1c8:   0a 9c 04 1c     sub ret0,r20,ret0
 1cc:   0f f0 10 95     ldw 8(r31),r21 
 1d0:   d3 9c 1f 45     extrw,s ret0,26,27,ret0
 1d4:   0a b3 0a 13     add,l r19,r21,r19
 1d8:   d7 9c 09 8c     depw,z ret0,19,20,ret0
 1dc:   0f e8 10 94     ldw 4(r31),r20 
 1e0:   08 bc 0a 1c     add,l ret0,r5,ret0
 1e4:   6b b3 00 20     stw r19,10(ret1)
 1e8:   0a b9 0a 15     add,l r25,r21,r21
 1ec:   0a 9c 0a 14     add,l ret0,r20,r20
__ 1f0:   00 1a 58 20     mtsp r26,sr1  __
 1f4:   08 54 0a 1c     add,l r20,rp,ret0
 1f8:   d7 8e 0c 14     depw r14,31,12,ret0
 1fc:   0e dc 12 88     stw ret0,4(r22)
 200:   06 80 53 13     lci r0(sr1,r20),r19
 204:   d2 73 1a 74     extrw,u r19,19,12,r19
 208:   08 1a 02 5c     copy r26,ret0 
 20c:   d7 93 0e 14     depw r19,15,12,ret0
 210:   0e dc 12 80     stw ret0,0(r22)
 214:   06 c0 12 80     fdc r0(r22)
 218:   00 00 04 00     sync
[snip]
 
My worry is the number of insn between the ldi 0,r26 and the mtsp r26,sr1.

Here, I supposed it's harmless but may be different in other critical path?

Wouldn't it be interesting (if possible) to insure that the load of the reg
and mtsp stay close together? (or may be simply detect the case of a const == 0?)

What your opinion?

Tx again,
    J.

PS: I didn't find back gcc-4.0 to check if my previous perf test could failed
for this reason?



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From - Thu Nov 08 21:02:25 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: in ccio_io_pdir_entry(), BUG_ON() seems to break gcc-4.2
	optimization?
Date: Thu, 19 Jun 2008 10:04:41 -0600
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To: rubisher <rubisher@scarlet.be>
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On Sun, Jun 15, 2008 at 12:37:25PM +0000, rubisher wrote:
> Hello all,
>
> looking at this hunk:
> void CCIO_INLINE
> ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
>                    unsigned long hints)
> {
>         register unsigned long pa;
>         register unsigned long ci; /* coherent index */
>
>         /* We currently only support kernel addresses */
>         BUG_ON(sid != KERNEL_SPACE);
...
> and I noticed that resulting code looks like:
>    0:   cb 39 a0 60     movb,<> r25,r25,38 <ccio_io_pdir_entry+0x38>
>    4:   34 1c 00 00     ldi 0,ret0

The BUG_ON is causing the movb to be inserted. And then the compiler knows
the value is zero and can either copy from a register or "load immediate 0".
It probably chose the "ldi 0" because it avoids register interlocks and
can always be executed.

The movb will either branch to +0x38 (and nullifies the delay slot)
or execute the ldi. So it looks right to me.

BTW, I think the BUG_ON can go away. It's good for debugging but doesn't
need to be in every kernel.

...
> And my worry was about lines 4: and 8:.
> According to the C code, I don't understand why optimization want to 
> initialize sr1 to 0 while it should be set to r25 (i.e. arg1)?

Does the BUG_ON explaination make sense to you?

>
> Otoh, the sba botherhood code didn't showing the same behaviour:
>    0:   22 a0 0e 01     ldil L%-10000000,r21
>    4:   34 1c 00 00     ldi 0,ret0
>    8:   34 1d 20 01     ldi -1000,ret1
>    c:   0a b8 0a 15     add,l r24,r21,r21
>   10:   08 15 02 56     copy r21,r22
>   14:   34 15 00 00     ldi 0,r21
>   18:   0b 95 02 15     and r21,ret0,r21
>   1c:   0b b6 02 16     and r22,ret1,r22
>   20:   00 19 58 20     mtsp r25,sr1
>   24:   07 00 53 13     lci r0(sr1,r24),r19
>   28:   d2 73 1a 6c     extrw,u r19,19,20,r19
>   2c:   23 80 00 01     ldil L%-80000000,ret0
>   30:   34 1d 00 00     ldi 0,ret1
>
> but didn't start with BUG_ON(),

Right. That should be a clue. :)

hth,
grant

> I simply try to remove this from ccio code 
> and get a better result:
> 00000000 <ccio_io_pdir_entry>:
>    0:   00 19 58 20     mtsp r25,sr1
>    4:   23 80 0e 01     ldil L%-10000000,ret0
>    8:   0b 98 0a 1c     add,l r24,ret0,ret0
>    c:   d7 97 0c 14     depw r23,31,12,ret0
>   10:   0f 5c 12 88     stw ret0,4(r26)
>   14:   07 00 53 18     lci r0(sr1,r24),r24
>   18:   d3 18 1a 74     extrw,u r24,19,12,r24
>   1c:   34 1c 00 00     ldi 0,ret0
>   20:   d7 98 0e 14     depw r24,15,12,ret0
>   24:   0f 5c 12 80     stw ret0,0(r26)
>   28:   07 40 12 80     fdc r0(r26)
>   2c:   00 00 04 00     sync
>   30:   e8 40 c0 02     bv,n r0(rp)
> Disassembly of section .init.text:
>
> But this time, it seems not consider assembly:
>         asm volatile ("lci %%r0(%%sr1, %1), %0" : "=r" (ci) : "r" (vba));
>         asm volatile ("extru %1,19,12,%0" : "+r" (ci) : "r" (ci));
>         asm volatile ("depw  %1,15,12,%0" : "+r" (pa) : "r" (ci));
>
> as a 'volatile' block and insert line 1c:
> This could may be solved by re-write as an one 'volatile' asm block like:
> 	asm volatile (
> 	"lci %%r0(%%sr1, %1), %1"
> 	"\textru        %1,19,12,%1\n"
> 	"\tdepw         %1,15,12,%0\n"
> 	: "=r" (pa)
> 	: "r" (vba));
>
> and even add a clobber 'memory'
> 	asm volatile (
> 	"lci %%r0(%%sr1, %1), %1"
> 	"\textru        %1,19,12,%1\n"
> 	"\tdepw         %1,15,12,%0\n"
> 	: "=r" (pa)
> 	: "r" (vba)
> 	: "memory");
>
> But I have no clue how to restore BUG_ON() and avoid wrong optimization?
>
> Any idea?
>
> Tia,
> 	r.
>
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From - Thu Nov 08 21:02:25 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Yet another inline asm worry: mtsp() macro (and may be other)?
Date: Thu, 19 Jun 2008 10:11:51 -0600
Lines: 118
Approved: news@gmane.org
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To: Joel Soete <soete.joel@scarlet.be>
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On Thu, Jun 19, 2008 at 12:40:30PM +0100, Joel Soete wrote:
> Hello all,
> 
> Grant, in a first approach I would like to address this post to you because
> all start from ccio-dma (again yes) when I figure out that in fact gcc-4.2 rob
> a part this driver code???
..
> 
> My first worry was about the form takes the resulting code of <ccio_io_pdir_entry>
> for remind:
>     0:   cb 39 a0 60     movb,<> r25,r25,38 <ccio_io_pdir_entry+0x38>
>     4:   34 1c 00 00     ldi 0,ret0
...
> The question was why sr1 is always set to 0 when it's actualy a function
> parameter (iirc 2d arg i.e. r25?)
> 
> Fwiw removing BUG_ON() seems to fix this issue?

Yes. I just replied to your previous mail.

> btw as far as it must be KERNEL_SPACE, couldn't we simplify stuff: removing
> sid parameter and replace mtsp macro call with a simple asm volatile("mtsp
> %%r0,%%sr1":::"memory")?

We could. But I thought there are cases were we might want to DMA to/from
user space directly and that's why Space ID is a parameter. My guess is
we are creating a kernel alias for user space and using the alias instead.
If that's correct and is the long term plan, we could remove the "sid"
parameter.

hth,
grant

> Then I look for all the call to function (ccio_io_pdir_entry) even thought
> it's inligned with those mtsp and lci it would be easy to find it.
> The C code learn me that it would call in ccio_map_single() and thanks with
> iommu_helper.h in ccio_map_sg(). But objdump -D ccio-dma.o shows me only one
> place where this code is used
> 00000000 <ccio_map_single>:
> [snip]
>   84:   34 14 00 00     ldi 0,r20
>   88:   00 14 58 20     mtsp r20,sr1
>   8c:   0a a3 0a 13     add,l r3,r21,r19
>   90:   d6 65 0c 14     depw r5,31,12,r19
>   94:   0f 53 12 88     stw r19,4(r26)
>   98:   04 60 53 1c     lci r0(sr1,r3),ret0
>   9c:   d3 9c 1a 74     extrw,u ret0,19,12,ret0
>   a0:   d6 9c 0e 14     depw ret0,15,12,r20
>   a4:   0f 54 12 80     stw r20,0(r26)
>   a8:   07 40 12 80     fdc r0(r26)
>   ac:   00 00 04 00     sync
> [snip]
> 
> and not in ccio_map_sg() (even not a call to ccio_io_pdir_entry() in case he
> didn't reach to inline it).
> 
> And the wonder is that my system d380 is even booting and running despite this
> lake???
> 
> That said with gcc-4.3, I find well this code iin the 2 functions.
> And here commes my worry about mtsp() macro: here is the resulting code with
> gcc-4.3:
> 00000000 <ccio_map_sg>:
> [snip]
> __ 1a0:   34 1a 00 00     ldi 0,r26__
>  1a4:   20 a0 02 00     ldil L%10000000,r5
>  1a8:   8e 80 61 28     cmpib,> 0,r20,244 <ccio_map_sg+0x244>
>  1ac:   20 40 0e 01     ldil L%-10000000,rp
>  1b0:   86 c0 21 88     cmpib,= 0,r22,27c <ccio_map_sg+0x27c>
>  1b4:   34 19 00 00     ldi 0,r25
>  1b8:   0f e0 10 9c     ldw 0(r31),ret0
>  1bc:   0d 80 10 94     ldw 0(r12),r20
>  1c0:   d7 80 1c 1e     depwi 0,31,2,ret0
>  1c4:   4b b3 00 20     ldw 10(ret1),r19
>  1c8:   0a 9c 04 1c     sub ret0,r20,ret0
>  1cc:   0f f0 10 95     ldw 8(r31),r21
>  1d0:   d3 9c 1f 45     extrw,s ret0,26,27,ret0
>  1d4:   0a b3 0a 13     add,l r19,r21,r19
>  1d8:   d7 9c 09 8c     depw,z ret0,19,20,ret0
>  1dc:   0f e8 10 94     ldw 4(r31),r20
>  1e0:   08 bc 0a 1c     add,l ret0,r5,ret0
>  1e4:   6b b3 00 20     stw r19,10(ret1)
>  1e8:   0a b9 0a 15     add,l r25,r21,r21
>  1ec:   0a 9c 0a 14     add,l ret0,r20,r20
> __ 1f0:   00 1a 58 20     mtsp r26,sr1  __
>  1f4:   08 54 0a 1c     add,l r20,rp,ret0
>  1f8:   d7 8e 0c 14     depw r14,31,12,ret0
>  1fc:   0e dc 12 88     stw ret0,4(r22)
>  200:   06 80 53 13     lci r0(sr1,r20),r19
>  204:   d2 73 1a 74     extrw,u r19,19,12,r19
>  208:   08 1a 02 5c     copy r26,ret0
>  20c:   d7 93 0e 14     depw r19,15,12,ret0
>  210:   0e dc 12 80     stw ret0,0(r22)
>  214:   06 c0 12 80     fdc r0(r22)
>  218:   00 00 04 00     sync
> [snip]
> 
> My worry is the number of insn between the ldi 0,r26 and the mtsp r26,sr1.
> 
> Here, I supposed it's harmless but may be different in other critical path?
> 
> Wouldn't it be interesting (if possible) to insure that the load of the reg
> and mtsp stay close together? (or may be simply detect the case of a const == 0?)
> 
> What your opinion?
> 
> Tx again,
>     J.
> 
> PS: I didn't find back gcc-4.0 to check if my previous perf test could failed
> for this reason?
> 
> 
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From - Thu Nov 08 21:02:25 2018
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From: Joel Soete <soete.joel@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: in ccio_io_pdir_entry(), BUG_ON() seems to break gcc-4.2	optimization?
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Cc: rubisher <rubisher@scarlet.be>, linux-parisc@vger.kernel.org
To: Grant Grundler <grundler@parisc-linux.org>
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Grant Grundler wrote:
> On Sun, Jun 15, 2008 at 12:37:25PM +0000, rubisher wrote:
>> Hello all,
>>
>> looking at this hunk:
>> void CCIO_INLINE
>> ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
>>                    unsigned long hints)
>> {
>>         register unsigned long pa;
>>         register unsigned long ci; /* coherent index */
>>
>>         /* We currently only support kernel addresses */
>>         BUG_ON(sid != KERNEL_SPACE);
> ...
>> and I noticed that resulting code looks like:
>>    0:   cb 39 a0 60     movb,<> r25,r25,38 <ccio_io_pdir_entry+0x38>
>>    4:   34 1c 00 00     ldi 0,ret0
> 
> The BUG_ON is causing the movb to be inserted. And then the compiler knows
> the value is zero and can either copy from a register or "load immediate 0".
> It probably chose the "ldi 0" because it avoids register interlocks and
> can always be executed.
> 
> The movb will either branch to +0x38 (and nullifies the delay slot)
> or execute the ldi. So it looks right to me.
> 
> BTW, I think the BUG_ON can go away. It's good for debugging but doesn't
> need to be in every kernel.
> 
> ...
>> And my worry was about lines 4: and 8:.
>> According to the C code, I don't understand why optimization want to 
>> initialize sr1 to 0 while it should be set to r25 (i.e. arg1)?
> 
> Does the BUG_ON explaination make sense to you?
> 
Well I nerver imagine that a compiler can make proof of this kind of induction spirit ;-) but that's give the sense, tx.

>> Otoh, the sba botherhood code didn't showing the same behaviour:
>>    0:   22 a0 0e 01     ldil L%-10000000,r21
>>    4:   34 1c 00 00     ldi 0,ret0
>>    8:   34 1d 20 01     ldi -1000,ret1
>>    c:   0a b8 0a 15     add,l r24,r21,r21
>>   10:   08 15 02 56     copy r21,r22
>>   14:   34 15 00 00     ldi 0,r21
>>   18:   0b 95 02 15     and r21,ret0,r21
>>   1c:   0b b6 02 16     and r22,ret1,r22
>>   20:   00 19 58 20     mtsp r25,sr1
>>   24:   07 00 53 13     lci r0(sr1,r24),r19
>>   28:   d2 73 1a 6c     extrw,u r19,19,20,r19
>>   2c:   23 80 00 01     ldil L%-80000000,ret0
>>   30:   34 1d 00 00     ldi 0,ret1
>>
>> but didn't start with BUG_ON(),
> 
> Right. That should be a clue. :)
> 
> hth,
> grant
> 
Tx again,
	J.

ps: ccio_io_pdir_entry() seems to works fine without BUG_ON().
>> I simply try to remove this from ccio code 
>> and get a better result:
>> 00000000 <ccio_io_pdir_entry>:
>>    0:   00 19 58 20     mtsp r25,sr1
>>    4:   23 80 0e 01     ldil L%-10000000,ret0
>>    8:   0b 98 0a 1c     add,l r24,ret0,ret0
>>    c:   d7 97 0c 14     depw r23,31,12,ret0
>>   10:   0f 5c 12 88     stw ret0,4(r26)
>>   14:   07 00 53 18     lci r0(sr1,r24),r24
>>   18:   d3 18 1a 74     extrw,u r24,19,12,r24
>>   1c:   34 1c 00 00     ldi 0,ret0
>>   20:   d7 98 0e 14     depw r24,15,12,ret0
>>   24:   0f 5c 12 80     stw ret0,0(r26)
>>   28:   07 40 12 80     fdc r0(r26)
>>   2c:   00 00 04 00     sync
>>   30:   e8 40 c0 02     bv,n r0(rp)
>> Disassembly of section .init.text:
>>
>> But this time, it seems not consider assembly:
>>         asm volatile ("lci %%r0(%%sr1, %1), %0" : "=r" (ci) : "r" (vba));
>>         asm volatile ("extru %1,19,12,%0" : "+r" (ci) : "r" (ci));
>>         asm volatile ("depw  %1,15,12,%0" : "+r" (pa) : "r" (ci));
>>
>> as a 'volatile' block and insert line 1c:
>> This could may be solved by re-write as an one 'volatile' asm block like:
>> 	asm volatile (
>> 	"lci %%r0(%%sr1, %1), %1"
>> 	"\textru        %1,19,12,%1\n"
>> 	"\tdepw         %1,15,12,%0\n"
>> 	: "=r" (pa)
>> 	: "r" (vba));
>>
>> and even add a clobber 'memory'
>> 	asm volatile (
>> 	"lci %%r0(%%sr1, %1), %1"
>> 	"\textru        %1,19,12,%1\n"
>> 	"\tdepw         %1,15,12,%0\n"
>> 	: "=r" (pa)
>> 	: "r" (vba)
>> 	: "memory");
>>
>> But I have no clue how to restore BUG_ON() and avoid wrong optimization?
>>
>> Any idea?
>>
>> Tia,
>> 	r.
>>
>> --
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From - Thu Nov 08 21:02:25 2018
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From: Joel Soete <soete.joel@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Yet another inline asm worry: mtsp() macro (and may be other)?
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Cc: linux-parisc <linux-parisc@vger.kernel.org>,
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To: Grant Grundler <grundler@parisc-linux.org>
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Grant Grundler wrote:
> On Thu, Jun 19, 2008 at 12:40:30PM +0100, Joel Soete wrote:
>> Hello all,
>>
>> Grant, in a first approach I would like to address this post to you because
>> all start from ccio-dma (again yes) when I figure out that in fact gcc-4.2 rob
>> a part this driver code???
> ..
>> My first worry was about the form takes the resulting code of <ccio_io_pdir_entry>
>> for remind:
>>     0:   cb 39 a0 60     movb,<> r25,r25,38 <ccio_io_pdir_entry+0x38>
>>     4:   34 1c 00 00     ldi 0,ret0
> ...
>> The question was why sr1 is always set to 0 when it's actualy a function
>> parameter (iirc 2d arg i.e. r25?)
>>
>> Fwiw removing BUG_ON() seems to fix this issue?
> 
> Yes. I just replied to your previous mail.
> 
yes.

>> btw as far as it must be KERNEL_SPACE, couldn't we simplify stuff: removing
>> sid parameter and replace mtsp macro call with a simple asm volatile("mtsp
>> %%r0,%%sr1":::"memory")?
> 
> We could. But I thought there are cases were we might want to DMA to/from
> user space directly and that's why Space ID is a parameter.

Ok but it was a BUG if temporary space reg is not 0, so???

> My guess is
> we are creating a kernel alias for user space and using the alias instead.
> If that's correct and is the long term plan, we could remove the "sid"
> parameter.
> 

Nice to me.
btw system seems to boot too with asm volatile("mtsp %%r0,%%sr1":::"memory")
may be the cpp can catch in the mtsp(gr, cr) macro if gr==0 then I can use this insn if not the original macro???

Tx again,
	j.


> hth,
> grant
> 
>> Then I look for all the call to function (ccio_io_pdir_entry) even thought
>> it's inligned with those mtsp and lci it would be easy to find it.
>> The C code learn me that it would call in ccio_map_single() and thanks with
>> iommu_helper.h in ccio_map_sg(). But objdump -D ccio-dma.o shows me only one
>> place where this code is used
>> 00000000 <ccio_map_single>:
>> [snip]
>>   84:   34 14 00 00     ldi 0,r20
>>   88:   00 14 58 20     mtsp r20,sr1
>>   8c:   0a a3 0a 13     add,l r3,r21,r19
>>   90:   d6 65 0c 14     depw r5,31,12,r19
>>   94:   0f 53 12 88     stw r19,4(r26)
>>   98:   04 60 53 1c     lci r0(sr1,r3),ret0
>>   9c:   d3 9c 1a 74     extrw,u ret0,19,12,ret0
>>   a0:   d6 9c 0e 14     depw ret0,15,12,r20
>>   a4:   0f 54 12 80     stw r20,0(r26)
>>   a8:   07 40 12 80     fdc r0(r26)
>>   ac:   00 00 04 00     sync
>> [snip]
>>
>> and not in ccio_map_sg() (even not a call to ccio_io_pdir_entry() in case he
>> didn't reach to inline it).
>>
>> And the wonder is that my system d380 is even booting and running despite this
>> lake???
>>
>> That said with gcc-4.3, I find well this code iin the 2 functions.
>> And here commes my worry about mtsp() macro: here is the resulting code with
>> gcc-4.3:
>> 00000000 <ccio_map_sg>:
>> [snip]
>> __ 1a0:   34 1a 00 00     ldi 0,r26__
>>  1a4:   20 a0 02 00     ldil L%10000000,r5
>>  1a8:   8e 80 61 28     cmpib,> 0,r20,244 <ccio_map_sg+0x244>
>>  1ac:   20 40 0e 01     ldil L%-10000000,rp
>>  1b0:   86 c0 21 88     cmpib,= 0,r22,27c <ccio_map_sg+0x27c>
>>  1b4:   34 19 00 00     ldi 0,r25
>>  1b8:   0f e0 10 9c     ldw 0(r31),ret0
>>  1bc:   0d 80 10 94     ldw 0(r12),r20
>>  1c0:   d7 80 1c 1e     depwi 0,31,2,ret0
>>  1c4:   4b b3 00 20     ldw 10(ret1),r19
>>  1c8:   0a 9c 04 1c     sub ret0,r20,ret0
>>  1cc:   0f f0 10 95     ldw 8(r31),r21
>>  1d0:   d3 9c 1f 45     extrw,s ret0,26,27,ret0
>>  1d4:   0a b3 0a 13     add,l r19,r21,r19
>>  1d8:   d7 9c 09 8c     depw,z ret0,19,20,ret0
>>  1dc:   0f e8 10 94     ldw 4(r31),r20
>>  1e0:   08 bc 0a 1c     add,l ret0,r5,ret0
>>  1e4:   6b b3 00 20     stw r19,10(ret1)
>>  1e8:   0a b9 0a 15     add,l r25,r21,r21
>>  1ec:   0a 9c 0a 14     add,l ret0,r20,r20
>> __ 1f0:   00 1a 58 20     mtsp r26,sr1  __
>>  1f4:   08 54 0a 1c     add,l r20,rp,ret0
>>  1f8:   d7 8e 0c 14     depw r14,31,12,ret0
>>  1fc:   0e dc 12 88     stw ret0,4(r22)
>>  200:   06 80 53 13     lci r0(sr1,r20),r19
>>  204:   d2 73 1a 74     extrw,u r19,19,12,r19
>>  208:   08 1a 02 5c     copy r26,ret0
>>  20c:   d7 93 0e 14     depw r19,15,12,ret0
>>  210:   0e dc 12 80     stw ret0,0(r22)
>>  214:   06 c0 12 80     fdc r0(r22)
>>  218:   00 00 04 00     sync
>> [snip]
>>
>> My worry is the number of insn between the ldi 0,r26 and the mtsp r26,sr1.
>>
>> Here, I supposed it's harmless but may be different in other critical path?
>>
>> Wouldn't it be interesting (if possible) to insure that the load of the reg
>> and mtsp stay close together? (or may be simply detect the case of a const == 0?)
>>
>> What your opinion?
>>
>> Tx again,
>>     J.
>>
>> PS: I didn't find back gcc-4.0 to check if my previous perf test could failed
>> for this reason?
>>
>>
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Subject: Re: in ccio_io_pdir_entry(), BUG_ON() seems to break gcc-4.2
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> >    4:   34 1c 00 00     ldi 0,ret0
> 
> The BUG_ON is causing the movb to be inserted. And then the compiler knows
> the value is zero and can either copy from a register or "load immediate 0".
> It probably chose the "ldi 0" because it avoids register interlocks and
> can always be executed.

This might not be correct with gnu as, but I think "ldi 0" is done as

	or r0,r0,ret0

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:02:25 2018
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Subject: Re: in ccio_io_pdir_entry(), BUG_ON() seems to break gcc-4.2    optimization?
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> > Does the BUG_ON explaination make sense to you?
> > 
> Well I nerver imagine that a compiler can make proof of this kind of induction spirit ;-) but that's give the sense, tx.

Yes, the current compiler eliminates a lot of dead code based on induction.
This occurs a lot when functions are inlined, etc.  Makes debugging a real
problem.

Dave
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From - Thu Nov 08 21:02:25 2018
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Subject: Re: in ccio_io_pdir_entry(),BUG_ON() seems to break gcc-4.2 
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> > > Does the BUG_ON explaination make sense to you?
> > > 
> > Well I nerver imagine that a compiler can make proof of this kind of
induction spirit ;-) but that's give the sense, tx.
> 
> Yes, the current compiler eliminates a lot of dead code based on induction.
> This occurs a lot when functions are inlined, etc.  Makes debugging a real
> problem.
> 
Thanks Dave (after a while away from this parisc hobby, it's nice to learn
fresh info).

Cheers,
    J.

> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> 


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I am trying to track down the HP-HIL Technical reference manual 
(HP #45918A).  PARISC linux supports HP-HIL devices, so someone must have access to this technical information.  I could surely use the help locating a copy.  I  would be  happy to pay shipping and copying costs. 

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Subject: Re: Yet another inline asm worry: mtsp() macro (and may be other)?
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> On Thu, Jun 19, 2008 at 12:40:30PM +0100, Joel Soete wrote:
> > Hello all,
> > 
[snip]
> > And the wonder is that my system d380 is even booting and running despite this
> > lake???
> > 
> > That said with gcc-4.3, I find well this code iin the 2 functions.
> > And here commes my worry about mtsp() macro: here is the resulting code with
> > gcc-4.3:

Well I was hopping that would be the fix of my perf test but not ;_(
(after a bit less then an hour of tar/rm test the fs became again corrupted)

> > 00000000 <ccio_map_sg>:
> > [snip]
> > __ 1a0:   34 1a 00 00     ldi 0,r26__
> >  1a4:   20 a0 02 00     ldil L%10000000,r5
> >  1a8:   8e 80 61 28     cmpib,> 0,r20,244 <ccio_map_sg+0x244>
> >  1ac:   20 40 0e 01     ldil L%-10000000,rp
> >  1b0:   86 c0 21 88     cmpib,= 0,r22,27c <ccio_map_sg+0x27c>
> >  1b4:   34 19 00 00     ldi 0,r25
> >  1b8:   0f e0 10 9c     ldw 0(r31),ret0
> >  1bc:   0d 80 10 94     ldw 0(r12),r20
> >  1c0:   d7 80 1c 1e     depwi 0,31,2,ret0
> >  1c4:   4b b3 00 20     ldw 10(ret1),r19
> >  1c8:   0a 9c 04 1c     sub ret0,r20,ret0
> >  1cc:   0f f0 10 95     ldw 8(r31),r21
> >  1d0:   d3 9c 1f 45     extrw,s ret0,26,27,ret0
> >  1d4:   0a b3 0a 13     add,l r19,r21,r19
> >  1d8:   d7 9c 09 8c     depw,z ret0,19,20,ret0
> >  1dc:   0f e8 10 94     ldw 4(r31),r20
> >  1e0:   08 bc 0a 1c     add,l ret0,r5,ret0
> >  1e4:   6b b3 00 20     stw r19,10(ret1)
> >  1e8:   0a b9 0a 15     add,l r25,r21,r21
> >  1ec:   0a 9c 0a 14     add,l ret0,r20,r20
> > __ 1f0:   00 1a 58 20     mtsp r26,sr1  __
> >  1f4:   08 54 0a 1c     add,l r20,rp,ret0
> >  1f8:   d7 8e 0c 14     depw r14,31,12,ret0
> >  1fc:   0e dc 12 88     stw ret0,4(r22)
> >  200:   06 80 53 13     lci r0(sr1,r20),r19
> >  204:   d2 73 1a 74     extrw,u r19,19,12,r19
> >  208:   08 1a 02 5c     copy r26,ret0
> >  20c:   d7 93 0e 14     depw r19,15,12,ret0
> >  210:   0e dc 12 80     stw ret0,0(r22)
> >  214:   06 c0 12 80     fdc r0(r22)
> >  218:   00 00 04 00     sync
> > [snip]
> > 
> > My worry is the number of insn between the ldi 0,r26 and the mtsp r26,sr1.
> > 
> > Here, I supposed it's harmless but may be different in other critical path?
> > 
> > Wouldn't it be interesting (if possible) to insure that the load of the reg
> > and mtsp stay close together? (or may be simply detect the case of a const
== 0?)
> > 
Well I tried something:
@@ -103,10 +108,23 @@
 	cr;				\
 })
 
-#define mtsp(gr, cr) \
-	__asm__ __volatile__("mtsp %0,%1" \
-		: /* no outputs */ \
-		: "r" (gr), "i" (cr) : "memory")
+#define mtsp(lval, i_sr)					\
+{								\
+	if (lval) {						\
+		unsigned long reg = (unsigned long)(lval);	\
+		__asm__ __volatile__(				\
+			"mtsp %0, %%sr%1"			\
+			: /* no outputs */			\
+			: "r" (reg), "i" (i_sr)			\
+			: "memory");				\
+	} else {						\
+		__asm__ __volatile__(				\
+			"mtsp %%r0, %%sr%0"			\
+			: /* no outputs */			\
+			: "i" (i_sr)				\
+			: "memory");				\
+	};							\
+}
 
that does well the drill for ccio-dma driver but else where (memcpy or cache)
it looks worse then the original, so get rid of this idea.

I will go back to sleep on this issue some more month ;<)

Tx again to all for help,
    J.




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From - Thu Nov 08 21:02:26 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Yet another inline asm worry: mtsp() macro (and may be other)?
Date: Fri, 20 Jun 2008 11:11:51 -0600
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On Fri, Jun 20, 2008 at 03:01:43PM +0100, Joel Soete wrote:
> Well I tried something:
> @@ -103,10 +108,23 @@
>  	cr;				\
>  })
>  
> -#define mtsp(gr, cr) \
> -	__asm__ __volatile__("mtsp %0,%1" \
> -		: /* no outputs */ \
> -		: "r" (gr), "i" (cr) : "memory")
> +#define mtsp(lval, i_sr)					\
> +{								\
> +	if (lval) {						\
> +		unsigned long reg = (unsigned long)(lval);	\
> +		__asm__ __volatile__(				\
> +			"mtsp %0, %%sr%1"			\
> +			: /* no outputs */			\
> +			: "r" (reg), "i" (i_sr)			\
> +			: "memory");				\
> +	} else {						\
> +		__asm__ __volatile__(				\
> +			"mtsp %%r0, %%sr%0"			\
> +			: /* no outputs */			\
> +			: "i" (i_sr)				\
> +			: "memory");				\
> +	};							\
> +}
>  
> that does well the drill for ccio-dma driver but else where (memcpy or cache)
> it looks worse then the original, so get rid of this idea.

Try this instead:

#define mtsp(space, cr)	{						\
	if (__builtin_constant_p(space) && (space == 0)) {		\
		__asm__ __volatile__("mtsp %%r0, %0" :			\
			/* no outputs */ : "i" (cr) : "memory");	\
	} else {							\
		__asm__ __volatile__("mtsp %0, %1" :			\
			/* no outputs */ : "r" (space), "i" (cr) :	\
				"memory");				\
	}								\
}

-- 
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"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
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From - Thu Nov 08 21:02:26 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: ldcw inline assembler patch
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> > diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h
> > index ee80c92..4752684 100644
> > --- a/include/asm-parisc/system.h
> > +++ b/include/asm-parisc/system.h
> > @@ -168,8 +168,9 @@ static inline void set_eiem(unsigned long val)
> >  /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
> >  #define __ldcw(a) ({                                           \
> >        unsigned __ret;                                         \
> > -       __asm__ __volatile__(__LDCW " 0(%1),%0"                 \
> > -               : "=r" (__ret) : "r" (a));                      \
> > +       __asm__ __volatile__(__LDCW " 0(%2),%0"                 \
> > +                       : "=r" (__ret), "=m" (*(a))             \
> > +                       : "r" (a), "m" (*(a))   );              \
> >        __ret;                                                  \
> >  })
> 
> You don't want to do that, the compiler might hold "=m" (*(a)) in a
> temporary memory location.
> 
> e.g.
> temp_mem = *a;
> reg2 = &temp_mem;
> ... operation ...
> *a = temp_mem;

The operation uses "a" not "reg2".  Listing *a as written in the
asm should stop the compiler from caching *a in temp_mem.

I don't believe the compiler ever caches values in "memory".  However,
it does cache memory values in registers.  So, we need to tell GCC not
to cache *a in a register.  This can be done either by explicitly
listing the affected locations or by clobbering all memory.

I believe using the volatile keyword and a memory clobber is ok but
overkill.  Explicitly listing the affected memory as suggested by
Helge appears to be the way to go.  There is an example of this in
the GCC manual.

I also believe we can use the "+m" constraint so that *a doesn't need
to be listed twice.

It might be possible to remove the volatile keyword when the affected
memory is explicitly listed.  However, I doubt there are any situations
where the asm can be optimized away.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:02:26 2018
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From: rubisher <rubisher@scarlet.be>
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Subject: Re: Yet another inline asm worry: mtsp() macro (and may be other)?
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Matthew Wilcox wrote:
> On Fri, Jun 20, 2008 at 03:01:43PM +0100, Joel Soete wrote:
>> Well I tried something:
>> @@ -103,10 +108,23 @@
>>  	cr;				\
>>  })
>>  
>> -#define mtsp(gr, cr) \
>> -	__asm__ __volatile__("mtsp %0,%1" \
>> -		: /* no outputs */ \
>> -		: "r" (gr), "i" (cr) : "memory")
>> +#define mtsp(lval, i_sr)					\
>> +{								\
>> +	if (lval) {						\
>> +		unsigned long reg = (unsigned long)(lval);	\
>> +		__asm__ __volatile__(				\
>> +			"mtsp %0, %%sr%1"			\
>> +			: /* no outputs */			\
>> +			: "r" (reg), "i" (i_sr)			\
>> +			: "memory");				\
>> +	} else {						\
>> +		__asm__ __volatile__(				\
>> +			"mtsp %%r0, %%sr%0"			\
>> +			: /* no outputs */			\
>> +			: "i" (i_sr)				\
>> +			: "memory");				\
>> +	};							\
>> +}
>>  
>> that does well the drill for ccio-dma driver but else where (memcpy or cache)
>> it looks worse then the original, so get rid of this idea.
> 
> Try this instead:
> 
> #define mtsp(space, cr)	{						\
> 	if (__builtin_constant_p(space) && (space == 0)) {		\
> 		__asm__ __volatile__("mtsp %%r0, %0" :			\
> 			/* no outputs */ : "i" (cr) : "memory");	\
> 	} else {							\
> 		__asm__ __volatile__("mtsp %0, %1" :			\
> 			/* no outputs */ : "r" (space), "i" (cr) :	\
> 				"memory");				\
> 	}								\
> }
> 
This does the same job for ccio-dma driver, no change for cache but for memory it's a bit mixed, I let you appreciate:
[snip]
00000000 <copy_to_user>:                                        00000000 <copy_to_user>:
    0:   6b c2 3f d9     stw rp,-14(sp)                             0:   6b c2 3f d9     stw rp,-14(sp)
    4:   34 1c 00 00     ldi 0,ret0                            |    4:   00 00 58 20     mtsp r0,sr1
    8:   00 1c 58 20     mtsp ret0,sr1                         |    8:   03 c0 08 bc     mfctl tr6,ret0
    c:   03 c0 08 b3     mfctl tr6,r19                         |    c:   0f 98 10 93     ldw c(ret0),r19
   10:   0e 78 10 9c     ldw c(r19),ret0                       |   10:   86 60 20 28     cmpib,= 0,r19,2c <copy_to_user+0x2c>
   14:   93 80 20 00     cmpiclr,= 0,ret0,r0                   |   14:   34 1c 00 00     ldi 0,ret0
   18:   00 00 c4 bc     mfsp sr3,ret0                             18:   00 00 c4 bc     mfsp sr3,ret0
   1c:   00 1c 98 20     mtsp ret0,sr2                             1c:   00 1c 98 20     mtsp ret0,sr2
   20:   4b c2 3f d9     ldw -14(sp),rp                            20:   4b c2 3f d9     ldw -14(sp),rp
   24:   e8 00 00 00     b,l 2c <copy_to_user+0x2c>,r0             24:   e8 00 00 00     b,l 2c <copy_to_user+0x2c>,r0
   28:   08 00 02 40     nop                                       28:   08 00 02 40     nop
   2c:   08 00 02 40     nop                                   |   2c:   00 1c 98 20     mtsp ret0,sr2
                                                               >   30:   4b c2 3f d9     ldw -14(sp),rp
                                                               >   34:   e8 00 00 00     b,l 3c <copy_to_user+0x3c>,r0
                                                               >   38:   08 00 02 40     nop
                                                               >   3c:   08 00 02 40     nop
[snip]
00000000 <copy_from_user>:                                      00000000 <copy_from_user>:
    0:   6b c2 3f d9     stw rp,-14(sp)                             0:   6b c2 3f d9     stw rp,-14(sp)
    4:   03 c0 08 bc     mfctl tr6,ret0                             4:   03 c0 08 bc     mfctl tr6,ret0
    8:   0f 98 10 93     ldw c(ret0),r19                            8:   0f 98 10 93     ldw c(ret0),r19
    c:   86 60 20 38     cmpib,= 0,r19,30 <copy_from_user+0x30 |    c:   86 60 20 30     cmpib,= 0,r19,2c <copy_from_user+0x2c
   10:   34 1c 00 00     ldi 0,ret0                                10:   34 1c 00 00     ldi 0,ret0
   14:   00 00 c4 bc     mfsp sr3,ret0                             14:   00 00 c4 bc     mfsp sr3,ret0
   18:   00 1c 58 20     mtsp ret0,sr1                             18:   00 1c 58 20     mtsp ret0,sr1
   1c:   34 1c 00 00     ldi 0,ret0                            |   1c:   00 00 98 20     mtsp r0,sr2
   20:   00 1c 98 20     mtsp ret0,sr2                         |   20:   4b c2 3f d9     ldw -14(sp),rp
   24:   4b c2 3f d9     ldw -14(sp),rp                        |   24:   e8 00 00 00     b,l 2c <copy_from_user+0x2c>,r0
   28:   e8 00 00 00     b,l 30 <copy_from_user+0x30>,r0       |   28:   08 00 02 40     nop
   2c:   08 00 02 40     nop                                   |   2c:   00 1c 58 20     mtsp ret0,sr1
   30:   00 1c 58 20     mtsp ret0,sr1                         |   30:   00 00 98 20     mtsp r0,sr2
   34:   34 1c 00 00     ldi 0,ret0                            |   34:   4b c2 3f d9     ldw -14(sp),rp
   38:   00 1c 98 20     mtsp ret0,sr2                         |   38:   e8 00 00 00     b,l 40 <copy_from_user+0x40>,r0
   3c:   4b c2 3f d9     ldw -14(sp),rp                        |   3c:   08 00 02 40     nop
   40:   e8 00 00 00     b,l 48 <copy_from_user+0x48>,r0       |   40:   08 00 02 40     nop
   44:   08 00 02 40     nop                                   <
   48:   08 00 02 40     nop                                   <
Disassembly of section .text.copy_in_user:                      Disassembly of section .text.copy_in_user:
[snip]

00000000 <memcpy>:                                              00000000 <memcpy>:
    0:   6b c2 3f d9     stw rp,-14(sp)                             0:   6b c2 3f d9     stw rp,-14(sp)
    4:   34 1c 00 00     ldi 0,ret0                            |    4:   6f c4 00 80     stw,ma r4,40(sp)
    8:   6f c4 00 80     stw,ma r4,40(sp)                      |    8:   08 1a 02 44     copy r26,r4
    c:   08 1a 02 44     copy r26,r4                           |    c:   00 00 58 20     mtsp r0,sr1
   10:   00 1c 58 20     mtsp ret0,sr1                         |   10:   00 00 98 20     mtsp r0,sr2
   14:   34 13 00 00     ldi 0,r19                             |   14:   e8 40 00 00     b,l 1c <memcpy+0x1c>,rp
   18:   00 13 98 20     mtsp r19,sr2                          |   18:   08 00 02 40     nop
   1c:   e8 40 00 00     b,l 24 <memcpy+0x24>,rp               |   1c:   4b c2 3f 59     ldw -54(sp),rp
   20:   08 00 02 40     nop                                   |   20:   08 04 02 5c     copy r4,ret0
   24:   4b c2 3f 59     ldw -54(sp),rp                        |   24:   e8 40 c0 00     bv r0(rp)
   28:   08 04 02 5c     copy r4,ret0                          |   28:   4f c4 3f 81     ldw,mb -40(sp),r4
   2c:   e8 40 c0 00     bv r0(rp)                             <
   30:   4f c4 3f 81     ldw,mb -40(sp),r4                     <
[snip]

Anyway, it's far well better than mine.

Tx,
	J.


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To: David Woodhouse <dwmw2@infradead.org>
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On Tue, Jun 17, 2008 at 12:28:33PM +0100, David Woodhouse wrote:
> On Tue, 2008-06-17 at 13:11 +0300, Adrian Bunk wrote:
> > The pattern for this stuff is to provide a HAVE_AOUT kconfig variable 
> > that gets select'ed by these architectures.
> 
> http://git.infradead.org/users/dwmw2/aout-2.6.git?a=commitdiff;h=a5db5179
> 
> Subject: [PATCH] Introduce HAVE_AOUT symbol to remove hard-coded arch list for BINFMT_AOUT
> 
> HAVE_AOUT doesn't quite do the same thing as the recently removed
> ARCH_SUPPORTS_AOUT config option. That was set even on platforms where
> binfmt_aout isn't supported, although it's not entirely clear why.
> 
> So it's best just to introduce a new symbol, handled consistently with
> other similar HAVE_xxx symbols; with a simple 'select' the arch Kconfig.
> 
> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
> ---
>  arch/alpha/Kconfig |    1 +
>  arch/arm/Kconfig   |    1 +
>  arch/m68k/Kconfig  |    1 +
>  arch/x86/Kconfig   |    1 +
>  fs/Kconfig.binfmt  |    5 ++++-
>  5 files changed, 8 insertions(+), 1 deletions(-)
>...
> --- a/fs/Kconfig.binfmt
> +++ b/fs/Kconfig.binfmt
> @@ -59,9 +59,12 @@ config BINFMT_SHARED_FLAT
>  	help
>  	  Support FLAT shared libraries
>  
> +config HAVE_AOUT
> +       def_bool n
> +
>  config BINFMT_AOUT
>  	tristate "Kernel support for a.out and ECOFF binaries"
> -	depends on (X86_32 || ALPHA || ARM || M68K)
> +	depends on HAVE_AOUT
>  	---help---
>  	  A.out (Assembler.OUTput) is a set of formats for libraries and
>  	  executables used in the earliest versions of UNIX.  Linux used

What about m68knommu?

I don't know whether it was intentionally available there, but the 
removal in your patch does not seem to be intentional.

> dwmw2

cu
Adrian

-- 

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       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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On Sun, 2008-06-22 at 12:49 +0300, Adrian Bunk wrote:
> 
> What about m68knommu?
> 
> I don't know whether it was intentionally available there, but the 
> removal in your patch does not seem to be intentional.

Hm, true. Well spotted. I think it's probably correct though -- I don't
think m68knommu can really support a.out binaries, can it?

-- 
dwmw2


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Subject: Re: Yet another inline asm worry: mtsp() macro (and may be other)?
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On Thu, Jun 19, 2008 at 08:01:02PM +0000, Joel Soete wrote:
...
>> We could. But I thought there are cases were we might want to DMA to/from
>> user space directly and that's why Space ID is a parameter.
>
> Ok but it was a BUG if temporary space reg is not 0, so???

It was a BUG in 2.4 kernels since 2.4 didn't have the VM support
to do DMA to/from user space.

I thought 2.6 kernels could DMA to/from user space (related to Direct IO).

> btw system seems to boot too with asm volatile("mtsp 
> %%r0,%%sr1":::"memory")
> may be the cpp can catch in the mtsp(gr, cr) macro if gr==0 then I can use 
> this insn if not the original macro???

Yes. I like willy's proposed patch for this.

thanks,
grant
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Jivin David Woodhouse lays it down ...
> On Sun, 2008-06-22 at 12:49 +0300, Adrian Bunk wrote:
> > 
> > What about m68knommu?
> > 
> > I don't know whether it was intentionally available there, but the 
> > removal in your patch does not seem to be intentional.
> 
> Hm, true. Well spotted. I think it's probably correct though -- I don't
> think m68knommu can really support a.out binaries, can it?

No it can't.

-- 
David McCullough,  david_mccullough@securecomputing.com,   Ph:+61 734352815
Secure Computing - SnapGear  http://www.uCdot.org   http://www.snapgear.com

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Subject: [2.6 patch] asm/ptrace.h userspace headers cleanup
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This patch contains the following cleanups for the asm/ptrace.h 
userspace headers:
- include/asm-generic/Kbuild.asm already lists ptrace.h, remove
  the superfluous listings in the Kbuild files of the following
  architectures:
  - cris
  - frv
  - powerpc
  - x86
- don't expose function prototypes and macros to userspace:
  - arm
  - blackfin
  - cris
  - mn10300
  - parisc
- remove #ifdef CONFIG_'s around #define's:
  - blackfin
  - m68knommu
- sh: AFAIK __SH5__ should work in both kernel and userspace,
      no need to leak CONFIG_SUPERH64 to userspace
- xtensa: cosmetical change to remove empty
            #ifndef __ASSEMBLY__ #else #endif
          from the userspace headers

Signed-off-by: Adrian Bunk <bunk@kernel.org>

---

Not changed by this patch is the fact that the following architectures 
have a different struct pt_regs depending on CONFIG_ variables:
- h8300
- m68knommu
- mips

This does not work in userspace.


 include/asm-arm/ptrace.h           |    6 ++----
 include/asm-blackfin/ptrace.h      |    6 ++++--
 include/asm-cris/arch-v10/Kbuild   |    1 -
 include/asm-cris/arch-v10/ptrace.h |    4 ++++
 include/asm-cris/arch-v32/Kbuild   |    1 -
 include/asm-cris/arch-v32/ptrace.h |    4 ++++
 include/asm-cris/ptrace.h          |    4 +++-
 include/asm-frv/Kbuild             |    1 -
 include/asm-m68knommu/ptrace.h     |    2 --
 include/asm-mn10300/ptrace.h       |    8 ++++++--
 include/asm-parisc/ptrace.h        |    4 +++-
 include/asm-powerpc/Kbuild         |    1 -
 include/asm-sh/ptrace.h            |    2 +-
 include/asm-x86/Kbuild             |    1 -
 include/asm-xtensa/ptrace.h        |   10 +++++-----
 15 files changed, 32 insertions(+), 23 deletions(-)

fc14755b77cff7af5ff00e938a4c493a669e25cd diff --git a/include/asm-arm/ptrace.h b/include/asm-arm/ptrace.h
index 7aaa206..8382b75 100644
--- a/include/asm-arm/ptrace.h
+++ b/include/asm-arm/ptrace.h
@@ -139,8 +139,6 @@ static inline int valid_user_regs(struct pt_regs *regs)
 	return 0;
 }
 
-#endif	/* __KERNEL__ */
-
 #define pc_pointer(v) \
 	((v) & ~PCMASK)
 
@@ -153,10 +151,10 @@ extern unsigned long profile_pc(struct pt_regs *regs);
 #define profile_pc(regs) instruction_pointer(regs)
 #endif
 
-#ifdef __KERNEL__
 #define predicate(x)		((x) & 0xf0000000)
 #define PREDICATE_ALWAYS	0xe0000000
-#endif
+
+#endif /* __KERNEL__ */
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/include/asm-blackfin/ptrace.h b/include/asm-blackfin/ptrace.h
index b8346cd..a45a80e 100644
--- a/include/asm-blackfin/ptrace.h
+++ b/include/asm-blackfin/ptrace.h
@@ -83,14 +83,14 @@ struct pt_regs {
 #define PTRACE_GETREGS            12
 #define PTRACE_SETREGS            13	/* ptrace signal  */
 
-#ifdef CONFIG_BINFMT_ELF_FDPIC
 #define PTRACE_GETFDPIC           31
 #define PTRACE_GETFDPIC_EXEC      0
 #define PTRACE_GETFDPIC_INTERP    1
-#endif
 
 #define PS_S  (0x0002)
 
+#ifdef __KERNEL__
+
 /* user_mode returns true if only one bit is set in IPEND, other than the
    master interrupt enable.  */
 #define user_mode(regs) (!(((regs)->ipend & ~0x10) & (((regs)->ipend & ~0x10) - 1)))
@@ -98,6 +98,8 @@ struct pt_regs {
 #define profile_pc(regs) instruction_pointer(regs)
 extern void show_regs(struct pt_regs *);
 
+#endif  /*  __KERNEL__  */
+
 #endif				/* __ASSEMBLY__ */
 
 /*
diff --git a/include/asm-cris/arch-v10/Kbuild b/include/asm-cris/arch-v10/Kbuild
index 60e7e1b..7a192e1 100644
--- a/include/asm-cris/arch-v10/Kbuild
+++ b/include/asm-cris/arch-v10/Kbuild
@@ -1,4 +1,3 @@
-header-y += ptrace.h
 header-y += user.h
 header-y += svinto.h
 header-y += sv_addr_ag.h
diff --git a/include/asm-cris/arch-v10/ptrace.h b/include/asm-cris/arch-v10/ptrace.h
index fb14c5e..2f464ea 100644
--- a/include/asm-cris/arch-v10/ptrace.h
+++ b/include/asm-cris/arch-v10/ptrace.h
@@ -106,10 +106,14 @@ struct switch_stack {
 	unsigned long return_ip; /* ip that _resume will return to */
 };
 
+#ifdef __KERNEL__
+
 /* bit 8 is user-mode flag */
 #define user_mode(regs) (((regs)->dccr & 0x100) != 0)
 #define instruction_pointer(regs) ((regs)->irp)
 #define profile_pc(regs) instruction_pointer(regs)
 extern void show_regs(struct pt_regs *);
 
+#endif  /*  __KERNEL__  */
+
 #endif
diff --git a/include/asm-cris/arch-v32/Kbuild b/include/asm-cris/arch-v32/Kbuild
index a0ec545..35f2fc4 100644
--- a/include/asm-cris/arch-v32/Kbuild
+++ b/include/asm-cris/arch-v32/Kbuild
@@ -1,3 +1,2 @@
-header-y += ptrace.h
 header-y += user.h
 header-y += cryptocop.h
diff --git a/include/asm-cris/arch-v32/ptrace.h b/include/asm-cris/arch-v32/ptrace.h
index 516cc70..41f4e86 100644
--- a/include/asm-cris/arch-v32/ptrace.h
+++ b/include/asm-cris/arch-v32/ptrace.h
@@ -106,9 +106,13 @@ struct switch_stack {
 	unsigned long return_ip; /* ip that _resume will return to */
 };
 
+#ifdef __KERNEL__
+
 #define user_mode(regs) (((regs)->ccs & (1 << (U_CCS_BITNR + CCS_SHIFT))) != 0)
 #define instruction_pointer(regs) ((regs)->erp)
 extern void show_regs(struct pt_regs *);
 #define profile_pc(regs) instruction_pointer(regs)
 
+#endif  /*  __KERNEL__  */
+
 #endif
diff --git a/include/asm-cris/ptrace.h b/include/asm-cris/ptrace.h
index 1ec69a7..d910925 100644
--- a/include/asm-cris/ptrace.h
+++ b/include/asm-cris/ptrace.h
@@ -4,11 +4,13 @@
 #include <asm/arch/ptrace.h>
 
 #ifdef __KERNEL__
+
 /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
 #define PTRACE_GETREGS            12
 #define PTRACE_SETREGS            13
-#endif
 
 #define profile_pc(regs) instruction_pointer(regs)
 
+#endif /* __KERNEL__ */
+
 #endif /* _CRIS_PTRACE_H */
diff --git a/include/asm-frv/Kbuild b/include/asm-frv/Kbuild
index bc3f12c..0f8956d 100644
--- a/include/asm-frv/Kbuild
+++ b/include/asm-frv/Kbuild
@@ -3,4 +3,3 @@ include include/asm-generic/Kbuild.asm
 header-y += registers.h
 
 unifdef-y += termios.h
-unifdef-y += ptrace.h
diff --git a/include/asm-m68knommu/ptrace.h b/include/asm-m68knommu/ptrace.h
index 47258e8..8c9194b 100644
--- a/include/asm-m68knommu/ptrace.h
+++ b/include/asm-m68knommu/ptrace.h
@@ -68,10 +68,8 @@ struct switch_stack {
 /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
 #define PTRACE_GETREGS            12
 #define PTRACE_SETREGS            13
-#ifdef CONFIG_FPU
 #define PTRACE_GETFPREGS          14
 #define PTRACE_SETFPREGS          15
-#endif
 
 #ifdef __KERNEL__
 
diff --git a/include/asm-mn10300/ptrace.h b/include/asm-mn10300/ptrace.h
index b368468..7b06cc6 100644
--- a/include/asm-mn10300/ptrace.h
+++ b/include/asm-mn10300/ptrace.h
@@ -88,12 +88,16 @@ extern struct pt_regs *__frame; /* current frame pointer */
 /* options set using PTRACE_SETOPTIONS */
 #define PTRACE_O_TRACESYSGOOD     0x00000001
 
-#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
+#if defined(__KERNEL__)
+
+#if !defined(__ASSEMBLY__)
 #define user_mode(regs)			(((regs)->epsw & EPSW_nSL) == EPSW_nSL)
 #define instruction_pointer(regs)	((regs)->pc)
 extern void show_regs(struct pt_regs *);
-#endif
+#endif  /*  !__ASSEMBLY  */
 
 #define profile_pc(regs) ((regs)->pc)
 
+#endif  /*  __KERNEL__  */
+
 #endif /* _ASM_PTRACE_H */
diff --git a/include/asm-parisc/ptrace.h b/include/asm-parisc/ptrace.h
index 93f990e..3e94c5d 100644
--- a/include/asm-parisc/ptrace.h
+++ b/include/asm-parisc/ptrace.h
@@ -33,7 +33,6 @@ struct pt_regs {
 	unsigned long ipsw;	/* CR22 */
 };
 
-#define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
 /*
  * The numbers chosen here are somewhat arbitrary but absolutely MUST
  * not overlap with any of the number assigned in <linux/ptrace.h>.
@@ -43,8 +42,11 @@ struct pt_regs {
  * since we have taken branch traps too)
  */
 #define PTRACE_SINGLEBLOCK	12	/* resume execution until next branch */
+
 #ifdef __KERNEL__
 
+#define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
+
 /* XXX should we use iaoq[1] or iaoq[0] ? */
 #define user_mode(regs)			(((regs)->iaoq[0] & 3) ? 1 : 0)
 #define user_space(regs)		(((regs)->iasq[1] != 0) ? 1 : 0)
diff --git a/include/asm-powerpc/Kbuild b/include/asm-powerpc/Kbuild
index 7381916..6920904 100644
--- a/include/asm-powerpc/Kbuild
+++ b/include/asm-powerpc/Kbuild
@@ -32,7 +32,6 @@ unifdef-y += elf.h
 unifdef-y += nvram.h
 unifdef-y += param.h
 unifdef-y += posix_types.h
-unifdef-y += ptrace.h
 unifdef-y += seccomp.h
 unifdef-y += signal.h
 unifdef-y += spu_info.h
diff --git a/include/asm-sh/ptrace.h b/include/asm-sh/ptrace.h
index 8d6c92b..7d36dc3 100644
--- a/include/asm-sh/ptrace.h
+++ b/include/asm-sh/ptrace.h
@@ -5,7 +5,7 @@
  * Copyright (C) 1999, 2000  Niibe Yutaka
  *
  */
-#if defined(__SH5__) || defined(CONFIG_SUPERH64)
+#if defined(__SH5__)
 struct pt_regs {
 	unsigned long long pc;
 	unsigned long long sr;
diff --git a/include/asm-x86/Kbuild b/include/asm-x86/Kbuild
index 1e35545..00473f7 100644
--- a/include/asm-x86/Kbuild
+++ b/include/asm-x86/Kbuild
@@ -19,7 +19,6 @@ unifdef-y += msr.h
 unifdef-y += mtrr.h
 unifdef-y += posix_types_32.h
 unifdef-y += posix_types_64.h
-unifdef-y += ptrace.h
 unifdef-y += unistd_32.h
 unifdef-y += unistd_64.h
 unifdef-y += vm86.h
diff --git a/include/asm-xtensa/ptrace.h b/include/asm-xtensa/ptrace.h
index 422c73e..089b0db 100644
--- a/include/asm-xtensa/ptrace.h
+++ b/include/asm-xtensa/ptrace.h
@@ -73,10 +73,10 @@
 #define PTRACE_GETXTREGS	18
 #define PTRACE_SETXTREGS	19
 
-#ifndef __ASSEMBLY__
-
 #ifdef __KERNEL__
 
+#ifndef __ASSEMBLY__
+
 /*
  * This struct defines the way the registers are stored on the
  * kernel stack during a system call or other kernel entry.
@@ -122,14 +122,14 @@ extern void show_regs(struct pt_regs *);
 # ifndef CONFIG_SMP
 #  define profile_pc(regs) instruction_pointer(regs)
 # endif
-#endif /* __KERNEL__ */
 
 #else	/* __ASSEMBLY__ */
 
-#ifdef __KERNEL__
 # include <asm/asm-offsets.h>
 #define PT_REGS_OFFSET	  (KERNEL_STACK_SIZE - PT_USER_SIZE)
-#endif
 
 #endif	/* !__ASSEMBLY__ */
+
+#endif  /* __KERNEL__ */
+
 #endif	/* _XTENSA_PTRACE_H */

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From: Greg Ungerer <gerg@snapgear.com>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: Re: [2.6 patch] asm/ptrace.h userspace headers cleanup
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Cc: Roland McGrath <roland@redhat.com>, linux-kernel@vger.kernel.org,
	rmk@arm.linux.org.uk, cooloney@kernel.org, dev-etrax@axis.com,
	dhowells@redhat.com, gerg@uclinux.org,
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	Andrew Morton <akpm@linux-foundation.org>
To: Adrian Bunk <bunk@kernel.org>
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Hi Adrian,

Adrian Bunk wrote:
> This patch contains the following cleanups for the asm/ptrace.h 
> userspace headers:
> - include/asm-generic/Kbuild.asm already lists ptrace.h, remove
>   the superfluous listings in the Kbuild files of the following
>   architectures:
>   - cris
>   - frv
>   - powerpc
>   - x86
> - don't expose function prototypes and macros to userspace:
>   - arm
>   - blackfin
>   - cris
>   - mn10300
>   - parisc
> - remove #ifdef CONFIG_'s around #define's:
>   - blackfin
>   - m68knommu
> - sh: AFAIK __SH5__ should work in both kernel and userspace,
>       no need to leak CONFIG_SUPERH64 to userspace
> - xtensa: cosmetical change to remove empty
>             #ifndef __ASSEMBLY__ #else #endif
>           from the userspace headers
> 
> Signed-off-by: Adrian Bunk <bunk@kernel.org>

The m68knommu looks ok.

Acked-by: Greg Ungerer <gerg@uclinux.org>


> ---
> 
> Not changed by this patch is the fact that the following architectures 
> have a different struct pt_regs depending on CONFIG_ variables:
> - h8300
> - m68knommu
> - mips
> 
> This does not work in userspace.

Let me do something about that for m68knommu.

Regards
Greg



>  include/asm-arm/ptrace.h           |    6 ++----
>  include/asm-blackfin/ptrace.h      |    6 ++++--
>  include/asm-cris/arch-v10/Kbuild   |    1 -
>  include/asm-cris/arch-v10/ptrace.h |    4 ++++
>  include/asm-cris/arch-v32/Kbuild   |    1 -
>  include/asm-cris/arch-v32/ptrace.h |    4 ++++
>  include/asm-cris/ptrace.h          |    4 +++-
>  include/asm-frv/Kbuild             |    1 -
>  include/asm-m68knommu/ptrace.h     |    2 --
>  include/asm-mn10300/ptrace.h       |    8 ++++++--
>  include/asm-parisc/ptrace.h        |    4 +++-
>  include/asm-powerpc/Kbuild         |    1 -
>  include/asm-sh/ptrace.h            |    2 +-
>  include/asm-x86/Kbuild             |    1 -
>  include/asm-xtensa/ptrace.h        |   10 +++++-----
>  15 files changed, 32 insertions(+), 23 deletions(-)
> 
> fc14755b77cff7af5ff00e938a4c493a669e25cd diff --git a/include/asm-arm/ptrace.h b/include/asm-arm/ptrace.h
> index 7aaa206..8382b75 100644
> --- a/include/asm-arm/ptrace.h
> +++ b/include/asm-arm/ptrace.h
> @@ -139,8 +139,6 @@ static inline int valid_user_regs(struct pt_regs *regs)
>  	return 0;
>  }
>  
> -#endif	/* __KERNEL__ */
> -
>  #define pc_pointer(v) \
>  	((v) & ~PCMASK)
>  
> @@ -153,10 +151,10 @@ extern unsigned long profile_pc(struct pt_regs *regs);
>  #define profile_pc(regs) instruction_pointer(regs)
>  #endif
>  
> -#ifdef __KERNEL__
>  #define predicate(x)		((x) & 0xf0000000)
>  #define PREDICATE_ALWAYS	0xe0000000
> -#endif
> +
> +#endif /* __KERNEL__ */
>  
>  #endif /* __ASSEMBLY__ */
>  
> diff --git a/include/asm-blackfin/ptrace.h b/include/asm-blackfin/ptrace.h
> index b8346cd..a45a80e 100644
> --- a/include/asm-blackfin/ptrace.h
> +++ b/include/asm-blackfin/ptrace.h
> @@ -83,14 +83,14 @@ struct pt_regs {
>  #define PTRACE_GETREGS            12
>  #define PTRACE_SETREGS            13	/* ptrace signal  */
>  
> -#ifdef CONFIG_BINFMT_ELF_FDPIC
>  #define PTRACE_GETFDPIC           31
>  #define PTRACE_GETFDPIC_EXEC      0
>  #define PTRACE_GETFDPIC_INTERP    1
> -#endif
>  
>  #define PS_S  (0x0002)
>  
> +#ifdef __KERNEL__
> +
>  /* user_mode returns true if only one bit is set in IPEND, other than the
>     master interrupt enable.  */
>  #define user_mode(regs) (!(((regs)->ipend & ~0x10) & (((regs)->ipend & ~0x10) - 1)))
> @@ -98,6 +98,8 @@ struct pt_regs {
>  #define profile_pc(regs) instruction_pointer(regs)
>  extern void show_regs(struct pt_regs *);
>  
> +#endif  /*  __KERNEL__  */
> +
>  #endif				/* __ASSEMBLY__ */
>  
>  /*
> diff --git a/include/asm-cris/arch-v10/Kbuild b/include/asm-cris/arch-v10/Kbuild
> index 60e7e1b..7a192e1 100644
> --- a/include/asm-cris/arch-v10/Kbuild
> +++ b/include/asm-cris/arch-v10/Kbuild
> @@ -1,4 +1,3 @@
> -header-y += ptrace.h
>  header-y += user.h
>  header-y += svinto.h
>  header-y += sv_addr_ag.h
> diff --git a/include/asm-cris/arch-v10/ptrace.h b/include/asm-cris/arch-v10/ptrace.h
> index fb14c5e..2f464ea 100644
> --- a/include/asm-cris/arch-v10/ptrace.h
> +++ b/include/asm-cris/arch-v10/ptrace.h
> @@ -106,10 +106,14 @@ struct switch_stack {
>  	unsigned long return_ip; /* ip that _resume will return to */
>  };
>  
> +#ifdef __KERNEL__
> +
>  /* bit 8 is user-mode flag */
>  #define user_mode(regs) (((regs)->dccr & 0x100) != 0)
>  #define instruction_pointer(regs) ((regs)->irp)
>  #define profile_pc(regs) instruction_pointer(regs)
>  extern void show_regs(struct pt_regs *);
>  
> +#endif  /*  __KERNEL__  */
> +
>  #endif
> diff --git a/include/asm-cris/arch-v32/Kbuild b/include/asm-cris/arch-v32/Kbuild
> index a0ec545..35f2fc4 100644
> --- a/include/asm-cris/arch-v32/Kbuild
> +++ b/include/asm-cris/arch-v32/Kbuild
> @@ -1,3 +1,2 @@
> -header-y += ptrace.h
>  header-y += user.h
>  header-y += cryptocop.h
> diff --git a/include/asm-cris/arch-v32/ptrace.h b/include/asm-cris/arch-v32/ptrace.h
> index 516cc70..41f4e86 100644
> --- a/include/asm-cris/arch-v32/ptrace.h
> +++ b/include/asm-cris/arch-v32/ptrace.h
> @@ -106,9 +106,13 @@ struct switch_stack {
>  	unsigned long return_ip; /* ip that _resume will return to */
>  };
>  
> +#ifdef __KERNEL__
> +
>  #define user_mode(regs) (((regs)->ccs & (1 << (U_CCS_BITNR + CCS_SHIFT))) != 0)
>  #define instruction_pointer(regs) ((regs)->erp)
>  extern void show_regs(struct pt_regs *);
>  #define profile_pc(regs) instruction_pointer(regs)
>  
> +#endif  /*  __KERNEL__  */
> +
>  #endif
> diff --git a/include/asm-cris/ptrace.h b/include/asm-cris/ptrace.h
> index 1ec69a7..d910925 100644
> --- a/include/asm-cris/ptrace.h
> +++ b/include/asm-cris/ptrace.h
> @@ -4,11 +4,13 @@
>  #include <asm/arch/ptrace.h>
>  
>  #ifdef __KERNEL__
> +
>  /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
>  #define PTRACE_GETREGS            12
>  #define PTRACE_SETREGS            13
> -#endif
>  
>  #define profile_pc(regs) instruction_pointer(regs)
>  
> +#endif /* __KERNEL__ */
> +
>  #endif /* _CRIS_PTRACE_H */
> diff --git a/include/asm-frv/Kbuild b/include/asm-frv/Kbuild
> index bc3f12c..0f8956d 100644
> --- a/include/asm-frv/Kbuild
> +++ b/include/asm-frv/Kbuild
> @@ -3,4 +3,3 @@ include include/asm-generic/Kbuild.asm
>  header-y += registers.h
>  
>  unifdef-y += termios.h
> -unifdef-y += ptrace.h
> diff --git a/include/asm-m68knommu/ptrace.h b/include/asm-m68knommu/ptrace.h
> index 47258e8..8c9194b 100644
> --- a/include/asm-m68knommu/ptrace.h
> +++ b/include/asm-m68knommu/ptrace.h
> @@ -68,10 +68,8 @@ struct switch_stack {
>  /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
>  #define PTRACE_GETREGS            12
>  #define PTRACE_SETREGS            13
> -#ifdef CONFIG_FPU
>  #define PTRACE_GETFPREGS          14
>  #define PTRACE_SETFPREGS          15
> -#endif
>  
>  #ifdef __KERNEL__
>  
> diff --git a/include/asm-mn10300/ptrace.h b/include/asm-mn10300/ptrace.h
> index b368468..7b06cc6 100644
> --- a/include/asm-mn10300/ptrace.h
> +++ b/include/asm-mn10300/ptrace.h
> @@ -88,12 +88,16 @@ extern struct pt_regs *__frame; /* current frame pointer */
>  /* options set using PTRACE_SETOPTIONS */
>  #define PTRACE_O_TRACESYSGOOD     0x00000001
>  
> -#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
> +#if defined(__KERNEL__)
> +
> +#if !defined(__ASSEMBLY__)
>  #define user_mode(regs)			(((regs)->epsw & EPSW_nSL) == EPSW_nSL)
>  #define instruction_pointer(regs)	((regs)->pc)
>  extern void show_regs(struct pt_regs *);
> -#endif
> +#endif  /*  !__ASSEMBLY  */
>  
>  #define profile_pc(regs) ((regs)->pc)
>  
> +#endif  /*  __KERNEL__  */
> +
>  #endif /* _ASM_PTRACE_H */
> diff --git a/include/asm-parisc/ptrace.h b/include/asm-parisc/ptrace.h
> index 93f990e..3e94c5d 100644
> --- a/include/asm-parisc/ptrace.h
> +++ b/include/asm-parisc/ptrace.h
> @@ -33,7 +33,6 @@ struct pt_regs {
>  	unsigned long ipsw;	/* CR22 */
>  };
>  
> -#define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
>  /*
>   * The numbers chosen here are somewhat arbitrary but absolutely MUST
>   * not overlap with any of the number assigned in <linux/ptrace.h>.
> @@ -43,8 +42,11 @@ struct pt_regs {
>   * since we have taken branch traps too)
>   */
>  #define PTRACE_SINGLEBLOCK	12	/* resume execution until next branch */
> +
>  #ifdef __KERNEL__
>  
> +#define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
> +
>  /* XXX should we use iaoq[1] or iaoq[0] ? */
>  #define user_mode(regs)			(((regs)->iaoq[0] & 3) ? 1 : 0)
>  #define user_space(regs)		(((regs)->iasq[1] != 0) ? 1 : 0)
> diff --git a/include/asm-powerpc/Kbuild b/include/asm-powerpc/Kbuild
> index 7381916..6920904 100644
> --- a/include/asm-powerpc/Kbuild
> +++ b/include/asm-powerpc/Kbuild
> @@ -32,7 +32,6 @@ unifdef-y += elf.h
>  unifdef-y += nvram.h
>  unifdef-y += param.h
>  unifdef-y += posix_types.h
> -unifdef-y += ptrace.h
>  unifdef-y += seccomp.h
>  unifdef-y += signal.h
>  unifdef-y += spu_info.h
> diff --git a/include/asm-sh/ptrace.h b/include/asm-sh/ptrace.h
> index 8d6c92b..7d36dc3 100644
> --- a/include/asm-sh/ptrace.h
> +++ b/include/asm-sh/ptrace.h
> @@ -5,7 +5,7 @@
>   * Copyright (C) 1999, 2000  Niibe Yutaka
>   *
>   */
> -#if defined(__SH5__) || defined(CONFIG_SUPERH64)
> +#if defined(__SH5__)
>  struct pt_regs {
>  	unsigned long long pc;
>  	unsigned long long sr;
> diff --git a/include/asm-x86/Kbuild b/include/asm-x86/Kbuild
> index 1e35545..00473f7 100644
> --- a/include/asm-x86/Kbuild
> +++ b/include/asm-x86/Kbuild
> @@ -19,7 +19,6 @@ unifdef-y += msr.h
>  unifdef-y += mtrr.h
>  unifdef-y += posix_types_32.h
>  unifdef-y += posix_types_64.h
> -unifdef-y += ptrace.h
>  unifdef-y += unistd_32.h
>  unifdef-y += unistd_64.h
>  unifdef-y += vm86.h
> diff --git a/include/asm-xtensa/ptrace.h b/include/asm-xtensa/ptrace.h
> index 422c73e..089b0db 100644
> --- a/include/asm-xtensa/ptrace.h
> +++ b/include/asm-xtensa/ptrace.h
> @@ -73,10 +73,10 @@
>  #define PTRACE_GETXTREGS	18
>  #define PTRACE_SETXTREGS	19
>  
> -#ifndef __ASSEMBLY__
> -
>  #ifdef __KERNEL__
>  
> +#ifndef __ASSEMBLY__
> +
>  /*
>   * This struct defines the way the registers are stored on the
>   * kernel stack during a system call or other kernel entry.
> @@ -122,14 +122,14 @@ extern void show_regs(struct pt_regs *);
>  # ifndef CONFIG_SMP
>  #  define profile_pc(regs) instruction_pointer(regs)
>  # endif
> -#endif /* __KERNEL__ */
>  
>  #else	/* __ASSEMBLY__ */
>  
> -#ifdef __KERNEL__
>  # include <asm/asm-offsets.h>
>  #define PT_REGS_OFFSET	  (KERNEL_STACK_SIZE - PT_USER_SIZE)
> -#endif
>  
>  #endif	/* !__ASSEMBLY__ */
> +
> +#endif  /* __KERNEL__ */
> +
>  #endif	/* _XTENSA_PTRACE_H */
> 
> 

-- 
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Greg Ungerer  --  Chief Software Dude       EMAIL:     gerg@snapgear.com
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From - Thu Nov 08 21:02:26 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: Re: [2.6 patch] asm/ptrace.h userspace headers cleanup
Date: Tue, 24 Jun 2008 13:08:44 +0900
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On Mon, Jun 23, 2008 at 08:48:09PM +0300, Adrian Bunk wrote:
> This patch contains the following cleanups for the asm/ptrace.h 
> userspace headers:
> - include/asm-generic/Kbuild.asm already lists ptrace.h, remove
>   the superfluous listings in the Kbuild files of the following
>   architectures:
>   - cris
>   - frv
>   - powerpc
>   - x86
> - don't expose function prototypes and macros to userspace:
>   - arm
>   - blackfin
>   - cris
>   - mn10300
>   - parisc
> - remove #ifdef CONFIG_'s around #define's:
>   - blackfin
>   - m68knommu
> - sh: AFAIK __SH5__ should work in both kernel and userspace,
>       no need to leak CONFIG_SUPERH64 to userspace

Yes, that's fine. We've generally avoided relying entirely on the gcc
builtin definitions due to the rampant stupidity surrounding
__SH4_NOFPU__, but it is true that __SH5__ is always defined at least.

Acked-by: Paul Mundt <lethal@linux-sh.org>
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	Peter Korsgaard <jacmet@sunsite.dk>, linux-kernel@vger.kernel.org,
	sam@ravnborg.org, dhowells@redhat.com, andi@firstfloor.org,
	"Kirill A. Shutemov" <k.shutemov@gmail.com>,
	ysato@users.sourceforge.jp, takata@linux-m32r.org,
	linux-m32r@ml.linux-m32r.org, kyle@mcmartin.ca, matthew@wil.cx,
	grundler@parisc-linux.org, linux-parisc@vger.kernel.org,
	linux-sh@vger.kernel.org
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On Tue, Jun 17, 2008 at 11:42:35AM +0300, Adrian Bunk wrote:
> On Mon, Jun 16, 2008 at 01:26:54PM +0100, David Woodhouse wrote:
> >...
> > Actually, I think we can drop the preceding patch too -- it's not
> > necessary to fix the regression in 2.6.26, and dhowells suggests that we
> > might still want to use ARCH_SUPPORTS_AOUT, by making BINFMT_AOUT depend
> > on it instead of that hard-coded list of architectures.
> > 
> > If we do that, then ARCH_SUPPORTS_AOUT would need to be defined on a
> > different set of architectures to the ones it's currently defined on --
> > so I don't really want to go there before 2.6.26. I'll push just the
> > parts which were included in the mail I just sent.
> > 
> > Why _are_ there architectures which define ARCH_SUPPORTS_AOUT and have
> > <asm/a.out.h> but don't support binfmt_aout, anyway? How does that make
> > sense?
> 
> My guess would be that binfmt_aout isn't actually used there.
> 
> The affected architectures are:
> - h8300
> - m32r
> - parisc
> - sh
> - v850
> 
> v850 is broken beyond repair, and I hope my patch to remove the 
> architecture will make it into 2.6.27.
> 
> For the other 4 architectures I have Cc'ed the architecture maintainers.
> 
There was never an a.out format for any of sh/h8300/m32r. It's likely
just perpetuated damage copied over from the other ports, as in the
parisc case.
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From - Thu Nov 08 21:02:27 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: Re: [2.6 patch] asm/ptrace.h userspace headers cleanup
Date: Mon, 23 Jun 2008 23:18:26 -0600
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To: Adrian Bunk <bunk@kernel.org>
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On Mon, Jun 23, 2008 at 08:48:09PM +0300, Adrian Bunk wrote:
> This patch contains the following cleanups for the asm/ptrace.h 
> userspace headers:
> - include/asm-generic/Kbuild.asm already lists ptrace.h, remove
>   the superfluous listings in the Kbuild files of the following
>   architectures:
>   - cris
>   - frv
>   - powerpc
>   - x86
> - don't expose function prototypes and macros to userspace:
>   - arm
>   - blackfin
>   - cris
>   - mn10300
>   - parisc
...
> diff --git a/include/asm-parisc/ptrace.h b/include/asm-parisc/ptrace.h
> index 93f990e..3e94c5d 100644
> --- a/include/asm-parisc/ptrace.h
> +++ b/include/asm-parisc/ptrace.h
> @@ -33,7 +33,6 @@ struct pt_regs {
>  	unsigned long ipsw;	/* CR22 */
>  };
>  
> -#define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
>  /*
>   * The numbers chosen here are somewhat arbitrary but absolutely MUST
>   * not overlap with any of the number assigned in <linux/ptrace.h>.
> @@ -43,8 +42,11 @@ struct pt_regs {
>   * since we have taken branch traps too)
>   */
>  #define PTRACE_SINGLEBLOCK	12	/* resume execution until next branch */
> +
>  #ifdef __KERNEL__
>  
> +#define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
> +
>  /* XXX should we use iaoq[1] or iaoq[0] ? */
>  #define user_mode(regs)			(((regs)->iaoq[0] & 3) ? 1 : 0)
>  #define user_space(regs)		(((regs)->iasq[1] != 0) ? 1 : 0)

Looks fine to me.
Acked-by: Grant Grundler <grundler@parisc-linux.org>
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From - Thu Nov 08 21:02:27 2018
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From: Jesper Nilsson <jesper.nilsson@axis.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: Re: [2.6 patch] asm/ptrace.h userspace headers cleanup
Date: Tue, 24 Jun 2008 10:15:39 +0200
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To: Adrian Bunk <bunk@kernel.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/449>

Hi,

On Mon, Jun 23, 2008 at 07:48:09PM +0200, Adrian Bunk wrote:
> This patch contains the following cleanups for the asm/ptrace.h
> userspace headers:
> - include/asm-generic/Kbuild.asm already lists ptrace.h, remove
>   the superfluous listings in the Kbuild files of the following
>   architectures:
>   - cris
>   - frv
>   - powerpc
>   - x86
> - don't expose function prototypes and macros to userspace:
>   - arm
>   - blackfin
>   - cris
>   - mn10300
>   - parisc
> - remove #ifdef CONFIG_'s around #define's:
>   - blackfin
>   - m68knommu
> - sh: AFAIK __SH5__ should work in both kernel and userspace,
>       no need to leak CONFIG_SUPERH64 to userspace
> - xtensa: cosmetical change to remove empty
>             #ifndef __ASSEMBLY__ #else #endif
>           from the userspace headers
> 
> Signed-off-by: Adrian Bunk <bunk@kernel.org>

The CRIS parts look ok.

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com



From - Thu Nov 08 21:02:27 2018
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From: Julia Lawall <julia@diku.dk>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.janitors
Subject: [PATCH 6/14] arch/parisc: Eliminate NULL test and memset after
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From: Julia Lawall <julia@diku.dk>

As noted by Akinobu Mita in patch b1fceac2b9e04d278316b2faddf276015fc06e3b,
alloc_bootmem and related functions never return NULL and always return a
zeroed region of memory.  Thus a NULL test or memset after calls to these
functions is unnecessary.

 arch/parisc/mm/init.c |    1 -
 1 file changed, 1 deletion(-)

This was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
expression E;
statement S;
@@

E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
... when != E
(
- BUG_ON (E == NULL);
|
- if (E == NULL) S
)

@@
expression E,E1;
@@

E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
... when != E
- memset(E,0,E1);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
---

diff -u -p a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -765,7 +765,6 @@ static void __init pagetable_init(void)
 #endif
 
 	empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
-	memset(empty_zero_page, 0, PAGE_SIZE);
 }
 
 static void __init gateway_init(void)
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Cc: Roland McGrath <roland@redhat.com>, linux-kernel@vger.kernel.org,
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To: Adrian Bunk <bunk@kernel.org>
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Adrian Bunk wrote:
> This patch contains the following cleanups for the asm/ptrace.h 
> userspace headers:
> - xtensa: cosmetical change to remove empty
>             #ifndef __ASSEMBLY__ #else #endif
>           from the userspace headers
> 
> Signed-off-by: Adrian Bunk <bunk@kernel.org>

The Xtensa part also looks ok.

Acked-by: Chris Zankel <chris@zankel.net>


Regards,
-Chris



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Adrian Bunk <bunk@kernel.org> wrote:

> This patch contains the following cleanups for the asm/ptrace.h 
> userspace headers:
> - include/asm-generic/Kbuild.asm already lists ptrace.h, remove
>   the superfluous listings in the Kbuild files of the following
>   architectures:
> ...
>   - frv
> ...
> - don't expose function prototypes and macros to userspace:
> ...
>   - mn10300

Acked-by: David Howells <dhowells@redhat.com> (FRV and MN10300)
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From - Thu Nov 08 21:02:27 2018
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To: David Woodhouse <dwmw2@infradead.org>
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On Sun, Jun 22, 2008 at 12:40:50PM +0100, David Woodhouse wrote:
> On Sun, 2008-06-22 at 12:49 +0300, Adrian Bunk wrote:
> > 
> > What about m68knommu?
> > 
> > I don't know whether it was intentionally available there, but the 
> > removal in your patch does not seem to be intentional.
> 
> Hm, true. Well spotted. I think it's probably correct though -- I don't
> think m68knommu can really support a.out binaries, can it?

I found another similar case:

X86_32 UML.

a.out is most likely working there?

> dwmw2

cu
Adrian

-- 

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       "Only a promise," Lao Er said.
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Adrian Bunk writes:

> This patch contains the following cleanups for the asm/ptrace.h 
> userspace headers:

Acked-by: Paul Mackerras <paulus@samba.org>
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On Mon, Jun 23, 2008 at 08:48:09PM +0300, Adrian Bunk wrote:
> diff --git a/include/asm-arm/ptrace.h b/include/asm-arm/ptrace.h
> index 7aaa206..8382b75 100644
> --- a/include/asm-arm/ptrace.h
> +++ b/include/asm-arm/ptrace.h
> @@ -139,8 +139,6 @@ static inline int valid_user_regs(struct pt_regs *regs)
>  	return 0;
>  }
>  
> -#endif	/* __KERNEL__ */
> -
>  #define pc_pointer(v) \
>  	((v) & ~PCMASK)
>  
> @@ -153,10 +151,10 @@ extern unsigned long profile_pc(struct pt_regs *regs);
>  #define profile_pc(regs) instruction_pointer(regs)
>  #endif
>  
> -#ifdef __KERNEL__
>  #define predicate(x)		((x) & 0xf0000000)
>  #define PREDICATE_ALWAYS	0xe0000000
> -#endif
> +
> +#endif /* __KERNEL__ */
>  
>  #endif /* __ASSEMBLY__ */
>  

Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>

-- 
Russell King
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 maintainer of:

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Just for remind:

Joel Soete wrote:
 >
 >
[snip]
 >>> But this time, it seems not consider assembly:
 >>>         asm volatile ("lci %%r0(%%sr1, %1), %0" : "=r" (ci) : "r"
 >>> (vba));
 >>>         asm volatile ("extru %1,19,12,%0" : "+r" (ci) : "r" (ci));
 >>>         asm volatile ("depw  %1,15,12,%0" : "+r" (pa) : "r" (ci));
 >>>
 >>> as a 'volatile' block and insert line 1c:

This seems to make better what I want:
        __asm__ __volatile__ (
        "lci    %%r0(%%sr1, %2), %0\n"
        "\textru        %0,19,12,%0\n"
        "\tdepw         %0,15,12,%1\n"
        : "+r" (ci), "+r" (pa)
        : "r" (vba)
        : "memory"
        );


in <ccio_map_sg>
  200:	06 80 53 13 	lci r0(sr1,r20),r19		      |	 200:	08 1a 02 54 	copy r26,r20
  204:	d2 73 1a 74 	extrw,u r19,19,12,r19		      |	 204:	06 a0 53 14 	lci
r0(sr1,r21),r20
  208:	08 1a 02 5c 	copy r26,ret0			      |	 208:	d2 94 1a 74 	extrw,u
r20,19,12,r20
  20c:	d7 93 0e 14 	depw r19,15,12,ret0		      |	 20c:	d7 94 0e 14 	depw
r20,15,12,ret0
  210:	0e dc 12 80 	stw ret0,0(r22)				 210:	0e dc 12 80 	stw ret0,0(r22)
  214:	06 c0 12 80 	fdc r0(r22)				 214:	06 c0 12 80 	fdc r0(r22)
  218:	00 00 04 00 	sync					 218:	00 00 04 00 	sync

J.

PS: I don't yet understand why kernel panicing when I try to get rid to
reserve 'ci' variable and use in place a gr as r19 (even if clobbered), the
produced object seems ok but resulting kernel panicing (even after a full
rebuild after a make distclean???)


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From - Thu Nov 08 21:02:27 2018
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From: Jeff Dike <jdike@addtoit.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: Re: architectures with ARCH_SUPPORTS_AOUT but no binfmt_aout
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On Tue, Jun 24, 2008 at 02:46:43PM +0300, Adrian Bunk wrote:
> I found another similar case:
> 
> X86_32 UML.
> 
> a.out is most likely working there?

Yup, if it works on the host, it'll work in UML.

     	   	 Jeff

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That all looks fine to me, though I won't claim to have paid close
attention to the nits in the various odd archs' files.

Thanks,
Roland



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On Tue, Jun 17, 2008 at 10:46:44AM +0100, David Woodhouse wrote:
>...
> I think we can probably get away with removing <asm/a.out.h> from every
> architecture other than Alpha, ARM, m68k and x86,
>...

Patch below.

> dwmw2

cu
Adrian


<--  snip  -->


This patch removes asm/a.out.h from all architectures that do not
provide a.out support.

This patch also includes the required removal of (unused)
#include <asm/a.out.h>'s and #include <linux/a.out.h>'s in the arch/
code for these architectures.

The ppc and v850 architectures that should anyway be removed in 2.6.27 
are not touched by this patch to avoid needless merge conflicts.

Signed-off-by: Adrian Bunk <bunk@kernel.org>

---

 arch/cris/arch-v10/boot/tools/build.c   |    1 
 arch/h8300/kernel/process.c             |    1 
 arch/ia64/mm/init.c                     |    1 
 arch/m68knommu/kernel/process.c         |    1 
 arch/m68knommu/kernel/traps.c           |    1 
 arch/mips/kernel/irixelf.c              |    1 
 arch/mips/kernel/process.c              |    1 
 arch/mips/kernel/syscall.c              |    1 
 arch/powerpc/kernel/softemu8xx.c        |    1 
 arch/powerpc/kernel/traps.c             |    1 
 arch/powerpc/platforms/chrp/setup.c     |    1 
 arch/powerpc/platforms/maple/setup.c    |    1 
 arch/powerpc/platforms/powermac/setup.c |    1 
 arch/powerpc/platforms/pseries/setup.c  |    1 
 include/asm-avr32/a.out.h               |   20 -------------
 include/asm-blackfin/a.out.h            |   19 -------------
 include/asm-cris/a.out.h                |   26 -----------------
 include/asm-h8300/a.out.h               |   20 -------------
 include/asm-ia64/a.out.h                |   32 ---------------------
 include/asm-m32r/a.out.h                |   20 -------------
 include/asm-m68knommu/a.out.h           |    1 
 include/asm-mips/a.out.h                |   35 ------------------------
 include/asm-parisc/a.out.h              |   20 -------------
 include/asm-powerpc/a.out.h             |   20 -------------
 include/asm-sh/a.out.h                  |   20 -------------
 include/asm-xtensa/a.out.h              |   29 -------------------
 26 files changed, 276 deletions(-)

9cd72b780be8d25cd2deb99a923030f2fe2aeba4 diff --git a/arch/cris/arch-v10/boot/tools/build.c b/arch/cris/arch-v10/boot/tools/build.c
index 2f9bbb2..c8adef3 100644
--- a/arch/cris/arch-v10/boot/tools/build.c
+++ b/arch/cris/arch-v10/boot/tools/build.c
@@ -30,7 +30,6 @@
 #include <sys/sysmacros.h>
 #include <unistd.h>	/* contains read/write */
 #include <fcntl.h>
-#include <linux/a.out.h>
 #include <errno.h>
 
 #define MINIX_HEADER 32
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index dfbe7ab..a8ef654 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -34,7 +34,6 @@
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/user.h>
-#include <linux/a.out.h>
 #include <linux/interrupt.h>
 #include <linux/reboot.h>
 #include <linux/fs.h>
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 200100e..f482a90 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -21,7 +21,6 @@
 #include <linux/bitops.h>
 #include <linux/kexec.h>
 
-#include <asm/a.out.h>
 #include <asm/dma.h>
 #include <asm/ia32.h>
 #include <asm/io.h>
diff --git a/arch/m68knommu/kernel/process.c b/arch/m68knommu/kernel/process.c
index 47502d5..3f2d774 100644
--- a/arch/m68knommu/kernel/process.c
+++ b/arch/m68knommu/kernel/process.c
@@ -25,7 +25,6 @@
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/user.h>
-#include <linux/a.out.h>
 #include <linux/interrupt.h>
 #include <linux/reboot.h>
 #include <linux/fs.h>
diff --git a/arch/m68knommu/kernel/traps.c b/arch/m68knommu/kernel/traps.c
index ec9aea6..0157b9d 100644
--- a/arch/m68knommu/kernel/traps.c
+++ b/arch/m68knommu/kernel/traps.c
@@ -22,7 +22,6 @@
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/types.h>
-#include <linux/a.out.h>
 #include <linux/user.h>
 #include <linux/string.h>
 #include <linux/linkage.h>
diff --git a/arch/mips/kernel/irixelf.c b/arch/mips/kernel/irixelf.c
index 469c723..e068a72 100644
--- a/arch/mips/kernel/irixelf.c
+++ b/arch/mips/kernel/irixelf.c
@@ -18,7 +18,6 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
-#include <linux/a.out.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/signal.h>
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 2c09a44..2040fc5 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -22,7 +22,6 @@
 #include <linux/personality.h>
 #include <linux/sys.h>
 #include <linux/user.h>
-#include <linux/a.out.h>
 #include <linux/init.h>
 #include <linux/completion.h>
 #include <linux/kallsyms.h>
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index af1bdc8..0d2b609 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -7,7 +7,6 @@
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  * Copyright (C) 2001 MIPS Technologies, Inc.
  */
-#include <linux/a.out.h>
 #include <linux/capability.h>
 #include <linux/errno.h>
 #include <linux/linkage.h>
diff --git a/arch/powerpc/kernel/softemu8xx.c b/arch/powerpc/kernel/softemu8xx.c
index 67d6f68..2489493 100644
--- a/arch/powerpc/kernel/softemu8xx.c
+++ b/arch/powerpc/kernel/softemu8xx.c
@@ -23,7 +23,6 @@
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/user.h>
-#include <linux/a.out.h>
 #include <linux/interrupt.h>
 
 #include <asm/pgtable.h>
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 4b5b7ff..c7e499e 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -23,7 +23,6 @@
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/user.h>
-#include <linux/a.out.h>
 #include <linux/interrupt.h>
 #include <linux/init.h>
 #include <linux/module.h>
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index 116babb..e6b3fac 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -17,7 +17,6 @@
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/user.h>
-#include <linux/a.out.h>
 #include <linux/tty.h>
 #include <linux/major.h>
 #include <linux/interrupt.h>
diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c
index 3647147..d4c61c3 100644
--- a/arch/powerpc/platforms/maple/setup.c
+++ b/arch/powerpc/platforms/maple/setup.c
@@ -23,7 +23,6 @@
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/user.h>
-#include <linux/a.out.h>
 #include <linux/tty.h>
 #include <linux/string.h>
 #include <linux/delay.h>
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 00bd016..19c287a 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -33,7 +33,6 @@
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/user.h>
-#include <linux/a.out.h>
 #include <linux/tty.h>
 #include <linux/string.h>
 #include <linux/delay.h>
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index f5d29f5..577efcd 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -25,7 +25,6 @@
 #include <linux/unistd.h>
 #include <linux/slab.h>
 #include <linux/user.h>
-#include <linux/a.out.h>
 #include <linux/tty.h>
 #include <linux/major.h>
 #include <linux/interrupt.h>
diff --git a/include/asm-avr32/a.out.h b/include/asm-avr32/a.out.h
deleted file mode 100644
index e46375a..0000000
--- a/include/asm-avr32/a.out.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef __ASM_AVR32_A_OUT_H
-#define __ASM_AVR32_A_OUT_H
-
-struct exec
-{
-  unsigned long a_info;		/* Use macros N_MAGIC, etc for access */
-  unsigned a_text;		/* length of text, in bytes */
-  unsigned a_data;		/* length of data, in bytes */
-  unsigned a_bss;		/* length of uninitialized data area for file, in bytes */
-  unsigned a_syms;		/* length of symbol table data in file, in bytes */
-  unsigned a_entry;		/* start address */
-  unsigned a_trsize;		/* length of relocation info for text, in bytes */
-  unsigned a_drsize;		/* length of relocation info for data, in bytes */
-};
-
-#define N_TRSIZE(a)	((a).a_trsize)
-#define N_DRSIZE(a)	((a).a_drsize)
-#define N_SYMSIZE(a)	((a).a_syms)
-
-#endif /* __ASM_AVR32_A_OUT_H */
diff --git a/include/asm-blackfin/a.out.h b/include/asm-blackfin/a.out.h
deleted file mode 100644
index 6c3d652..0000000
--- a/include/asm-blackfin/a.out.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef __BFIN_A_OUT_H__
-#define __BFIN_A_OUT_H__
-
-struct exec {
-	unsigned long a_info;	/* Use macros N_MAGIC, etc for access */
-	unsigned a_text;	/* length of text, in bytes */
-	unsigned a_data;	/* length of data, in bytes */
-	unsigned a_bss;		/* length of uninitialized data area for file, in bytes */
-	unsigned a_syms;	/* length of symbol table data in file, in bytes */
-	unsigned a_entry;	/* start address */
-	unsigned a_trsize;	/* length of relocation info for text, in bytes */
-	unsigned a_drsize;	/* length of relocation info for data, in bytes */
-};
-
-#define N_TRSIZE(a)	((a).a_trsize)
-#define N_DRSIZE(a)	((a).a_drsize)
-#define N_SYMSIZE(a)	((a).a_syms)
-
-#endif				/* __BFIN_A_OUT_H__ */
diff --git a/include/asm-cris/a.out.h b/include/asm-cris/a.out.h
deleted file mode 100644
index c82e9f9..0000000
--- a/include/asm-cris/a.out.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef __CRIS_A_OUT_H__
-#define __CRIS_A_OUT_H__
-
-/* we don't support a.out binaries on Linux/CRIS anyway, so this is
- * not really used but still needed because binfmt_elf.c for some reason
- * wants to know about a.out even if there is no interpreter available...
- */
-
-struct exec
-{
-  unsigned long a_info;		/* Use macros N_MAGIC, etc for access */
-  unsigned a_text;		/* length of text, in bytes */
-  unsigned a_data;		/* length of data, in bytes */
-  unsigned a_bss;		/* length of uninitialized data area for file, in bytes */
-  unsigned a_syms;		/* length of symbol table data in file, in bytes */
-  unsigned a_entry;		/* start address */
-  unsigned a_trsize;		/* length of relocation info for text, in bytes */
-  unsigned a_drsize;		/* length of relocation info for data, in bytes */
-};
-
-
-#define N_TRSIZE(a)	((a).a_trsize)
-#define N_DRSIZE(a)	((a).a_drsize)
-#define N_SYMSIZE(a)	((a).a_syms)
-
-#endif
diff --git a/include/asm-h8300/a.out.h b/include/asm-h8300/a.out.h
deleted file mode 100644
index ded780f..0000000
--- a/include/asm-h8300/a.out.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef __H8300_A_OUT_H__
-#define __H8300_A_OUT_H__
-
-struct exec
-{
-  unsigned long a_info;		/* Use macros N_MAGIC, etc for access */
-  unsigned a_text;		/* length of text, in bytes */
-  unsigned a_data;		/* length of data, in bytes */
-  unsigned a_bss;		/* length of uninitialized data area for file, in bytes */
-  unsigned a_syms;		/* length of symbol table data in file, in bytes */
-  unsigned a_entry;		/* start address */
-  unsigned a_trsize;		/* length of relocation info for text, in bytes */
-  unsigned a_drsize;		/* length of relocation info for data, in bytes */
-};
-
-#define N_TRSIZE(a)	((a).a_trsize)
-#define N_DRSIZE(a)	((a).a_drsize)
-#define N_SYMSIZE(a)	((a).a_syms)
-
-#endif /* __H8300_A_OUT_H__ */
diff --git a/include/asm-ia64/a.out.h b/include/asm-ia64/a.out.h
deleted file mode 100644
index 193dcfb..0000000
--- a/include/asm-ia64/a.out.h
+++ /dev/null
@@ -1,32 +0,0 @@
-#ifndef _ASM_IA64_A_OUT_H
-#define _ASM_IA64_A_OUT_H
-
-/*
- * No a.out format has been (or should be) defined so this file is
- * just a dummy that allows us to get binfmt_elf compiled.  It
- * probably would be better to clean up binfmt_elf.c so it does not
- * necessarily depend on there being a.out support.
- *
- * Modified 1998-2002
- *	David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co.
- */
-
-#include <linux/types.h>
-
-struct exec {
-	unsigned long a_info;
-	unsigned long a_text;
-	unsigned long a_data;
-	unsigned long a_bss;
-	unsigned long a_entry;
-};
-
-#define N_TXTADDR(x)	0
-#define N_DATADDR(x)	0
-#define N_BSSADDR(x)	0
-#define N_DRSIZE(x)	0
-#define N_TRSIZE(x)	0
-#define N_SYMSIZE(x)	0
-#define N_TXTOFF(x)	0
-
-#endif /* _ASM_IA64_A_OUT_H */
diff --git a/include/asm-m32r/a.out.h b/include/asm-m32r/a.out.h
deleted file mode 100644
index ab150f5..0000000
--- a/include/asm-m32r/a.out.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef _ASM_M32R_A_OUT_H
-#define _ASM_M32R_A_OUT_H
-
-struct exec
-{
-  unsigned long a_info;		/* Use macros N_MAGIC, etc for access */
-  unsigned a_text;		/* length of text, in bytes */
-  unsigned a_data;		/* length of data, in bytes */
-  unsigned a_bss;		/* length of uninitialized data area for file, in bytes */
-  unsigned a_syms;		/* length of symbol table data in file, in bytes */
-  unsigned a_entry;		/* start address */
-  unsigned a_trsize;		/* length of relocation info for text, in bytes */
-  unsigned a_drsize;		/* length of relocation info for data, in bytes */
-};
-
-#define N_TRSIZE(a)	((a).a_trsize)
-#define N_DRSIZE(a)	((a).a_drsize)
-#define N_SYMSIZE(a)	((a).a_syms)
-
-#endif /* _ASM_M32R_A_OUT_H */
diff --git a/include/asm-m68knommu/a.out.h b/include/asm-m68knommu/a.out.h
deleted file mode 100644
index ce18ef9..0000000
--- a/include/asm-m68knommu/a.out.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-m68k/a.out.h>
diff --git a/include/asm-mips/a.out.h b/include/asm-mips/a.out.h
deleted file mode 100644
index cad8371..0000000
--- a/include/asm-mips/a.out.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1994 - 1999, 2003 by Ralf Baechle
- */
-#ifndef _ASM_A_OUT_H
-#define _ASM_A_OUT_H
-
-#ifdef __KERNEL__
-
-
-#endif
-
-struct exec
-{
-	unsigned long a_info;	/* Use macros N_MAGIC, etc for access */
-	unsigned a_text;	/* length of text, in bytes */
-	unsigned a_data;	/* length of data, in bytes */
-	unsigned a_bss;		/* length of uninitialized data area for
-				    file, in bytes */
-	unsigned a_syms;	/* length of symbol table data in file,
-				   in bytes */
-	unsigned a_entry;	/* start address */
-	unsigned a_trsize;	/* length of relocation info for text, in
-				    bytes */
-	unsigned a_drsize;	/* length of relocation info for data, in bytes */
-};
-
-#define N_TRSIZE(a)	((a).a_trsize)
-#define N_DRSIZE(a)	((a).a_drsize)
-#define N_SYMSIZE(a)	((a).a_syms)
-
-#endif /* _ASM_A_OUT_H */
diff --git a/include/asm-parisc/a.out.h b/include/asm-parisc/a.out.h
deleted file mode 100644
index eb04e34..0000000
--- a/include/asm-parisc/a.out.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef __PARISC_A_OUT_H__
-#define __PARISC_A_OUT_H__
-
-struct exec
-{
-  unsigned int a_info;		/* Use macros N_MAGIC, etc for access */
-  unsigned a_text;		/* length of text, in bytes */
-  unsigned a_data;		/* length of data, in bytes */
-  unsigned a_bss;		/* length of uninitialized data area for file, in bytes */
-  unsigned a_syms;		/* length of symbol table data in file, in bytes */
-  unsigned a_entry;		/* start address */
-  unsigned a_trsize;		/* length of relocation info for text, in bytes */
-  unsigned a_drsize;		/* length of relocation info for data, in bytes */
-};
-
-#define N_TRSIZE(a)	((a).a_trsize)
-#define N_DRSIZE(a)	((a).a_drsize)
-#define N_SYMSIZE(a)	((a).a_syms)
-
-#endif /* __A_OUT_GNU_H__ */
diff --git a/include/asm-powerpc/a.out.h b/include/asm-powerpc/a.out.h
deleted file mode 100644
index 89cead6..0000000
--- a/include/asm-powerpc/a.out.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef _ASM_POWERPC_A_OUT_H
-#define _ASM_POWERPC_A_OUT_H
-
-struct exec
-{
-	unsigned long a_info;	/* Use macros N_MAGIC, etc for access */
-	unsigned a_text;	/* length of text, in bytes */
-	unsigned a_data;	/* length of data, in bytes */
-	unsigned a_bss;		/* length of uninitialized data area for file, in bytes */
-	unsigned a_syms;	/* length of symbol table data in file, in bytes */
-	unsigned a_entry;	/* start address */
-	unsigned a_trsize;	/* length of relocation info for text, in bytes */
-	unsigned a_drsize;	/* length of relocation info for data, in bytes */
-};
-
-#define N_TRSIZE(a)	((a).a_trsize)
-#define N_DRSIZE(a)	((a).a_drsize)
-#define N_SYMSIZE(a)	((a).a_syms)
-
-#endif /* _ASM_POWERPC_A_OUT_H */
diff --git a/include/asm-sh/a.out.h b/include/asm-sh/a.out.h
deleted file mode 100644
index 1f93130..0000000
--- a/include/asm-sh/a.out.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef __ASM_SH_A_OUT_H
-#define __ASM_SH_A_OUT_H
-
-struct exec
-{
-  unsigned long a_info;		/* Use macros N_MAGIC, etc for access */
-  unsigned a_text;		/* length of text, in bytes */
-  unsigned a_data;		/* length of data, in bytes */
-  unsigned a_bss;		/* length of uninitialized data area for file, in bytes */
-  unsigned a_syms;		/* length of symbol table data in file, in bytes */
-  unsigned a_entry;		/* start address */
-  unsigned a_trsize;		/* length of relocation info for text, in bytes */
-  unsigned a_drsize;		/* length of relocation info for data, in bytes */
-};
-
-#define N_TRSIZE(a)	((a).a_trsize)
-#define N_DRSIZE(a)	((a).a_drsize)
-#define N_SYMSIZE(a)	((a).a_syms)
-
-#endif /* __ASM_SH_A_OUT_H */
diff --git a/include/asm-xtensa/a.out.h b/include/asm-xtensa/a.out.h
deleted file mode 100644
index fdf1370..0000000
--- a/include/asm-xtensa/a.out.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * include/asm-xtensa/a.out.h
- *
- * Dummy a.out file. Xtensa does not support the a.out format, but the kernel
- * seems to depend on it.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001 - 2005 Tensilica Inc.
- */
-
-#ifndef _XTENSA_A_OUT_H
-#define _XTENSA_A_OUT_H
-
-struct exec
-{
-  unsigned long a_info;
-  unsigned a_text;
-  unsigned a_data;
-  unsigned a_bss;
-  unsigned a_syms;
-  unsigned a_entry;
-  unsigned a_trsize;
-  unsigned a_drsize;
-};
-
-#endif /* _XTENSA_A_OUT_H */

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From - Thu Nov 08 21:02:28 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.janitors
Subject: Re: [PATCH 6/14] arch/parisc: Eliminate NULL test and memset after
	alloc_bootmem
Date: Sat, 28 Jun 2008 11:54:49 -0600
Lines: 66
Approved: news@gmane.org
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Cc: akinobu.mita@gmail.com, kyle@mcmartin.ca, matthew@wil.cx,
	grundler@parisc-linux.org, linux-parisc@vger.kernel.org,
	linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
To: Julia Lawall <julia@diku.dk>
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On Tue, Jun 24, 2008 at 10:23:28AM +0200, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
> 
> As noted by Akinobu Mita in patch b1fceac2b9e04d278316b2faddf276015fc06e3b,
> alloc_bootmem and related functions never return NULL and always return a
> zeroed region of memory.  Thus a NULL test or memset after calls to these
> functions is unnecessary.
> 
>  arch/parisc/mm/init.c |    1 -
>  1 file changed, 1 deletion(-)
> 
> This was fixed using the following semantic patch.
> (http://www.emn.fr/x-info/coccinelle/)
> 
> // <smpl>
> @@
> expression E;
> statement S;
> @@
> 
> E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
> ... when != E
> (
> - BUG_ON (E == NULL);
> |
> - if (E == NULL) S
> )
> 
> @@
> expression E,E1;
> @@
> 
> E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
> ... when != E
> - memset(E,0,E1);
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>

Acked-by: Grant Grundler <grundler@parisc-linux.org>

thanks,
grant

> ---
> 
> diff -u -p a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -765,7 +765,6 @@ static void __init pagetable_init(void)
>  #endif
>  
>  	empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
> -	memset(empty_zero_page, 0, PAGE_SIZE);
>  }
>  
>  static void __init gateway_init(void)
> --
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From - Thu Nov 08 21:02:28 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: in ccio_io_pdir_entry(),BUG_ON() seems to break gcc-4.2
	optimization?
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To: Joel Soete <soete.joel@scarlet.be>
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On Thu, Jun 26, 2008 at 07:28:03AM +0100, Joel Soete wrote:
> Just for remind:
> 
> Joel Soete wrote:
>  >
>  >
> [snip]
>  >>> But this time, it seems not consider assembly:
>  >>>         asm volatile ("lci %%r0(%%sr1, %1), %0" : "=r" (ci) : "r"
>  >>> (vba));
>  >>>         asm volatile ("extru %1,19,12,%0" : "+r" (ci) : "r" (ci));
>  >>>         asm volatile ("depw  %1,15,12,%0" : "+r" (pa) : "r" (ci));
>  >>>
>  >>> as a 'volatile' block and insert line 1c:
> 
> This seems to make better what I want:
>         __asm__ __volatile__ (
>         "lci    %%r0(%%sr1, %2), %0\n"
>         "\textru        %0,19,12,%0\n"
>         "\tdepw         %0,15,12,%1\n"
>         : "+r" (ci), "+r" (pa)
>         : "r" (vba)
>         : "memory"

Why the "memory"? This asm code isn't modifying memory at all.

>         );
> 
> 
> in <ccio_map_sg>
>   200:	06 80 53 13 	lci r0(sr1,r20),r19		      |	 200:	08 1a 02 54 	copy r26,r20
>   204:	d2 73 1a 74 	extrw,u r19,19,12,r19		      |	 204:	06 a0 53 14 	lci
> r0(sr1,r21),r20
>   208:	08 1a 02 5c 	copy r26,ret0			      |	 208:	d2 94 1a 74 	extrw,u
> r20,19,12,r20
>   20c:	d7 93 0e 14 	depw r19,15,12,ret0		      |	 20c:	d7 94 0e 14 	depw
> r20,15,12,ret0
>   210:	0e dc 12 80 	stw ret0,0(r22)				 210:	0e dc 12 80 	stw ret0,0(r22)
>   214:	06 c0 12 80 	fdc r0(r22)				 214:	06 c0 12 80 	fdc r0(r22)
>   218:	00 00 04 00 	sync					 218:	00 00 04 00 	sync
> 
> J.
> 
> PS: I don't yet understand why kernel panicing when I try to get rid to
> reserve 'ci' variable and use in place a gr as r19 (even if clobbered), the
> produced object seems ok but resulting kernel panicing (even after a full
> rebuild after a make distclean???)

What's wrong with "ci" variable? It's just another register.
C compiler will allocate it and then we pass it to the asm().

And are you sure it's ok to use r19?

hth,
grant

> 
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From - Thu Nov 08 21:02:28 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Another ldcw inline assembler patch
Date: Sat, 28 Jun 2008 18:07:57 -0400
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Below is my take on how to write the ldcw asm.  I believe that Helge's
patch was essentially correct.

There are two reasons to expose the memory *a in the asm:

1) To prevent the compiler from discarding a preceeding write to *a, and
2) to prevent it from caching *a in a register over the asm.

The change has had a few days testing with a SMP build of 2.6.22.19
running on a rp3440.

Signed-off-by: Dave Anglin <dave.anglin@nrc-cnrc.gc.ca>

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h
index ee80c92..d91357b 100644
--- a/include/asm-parisc/system.h
+++ b/include/asm-parisc/system.h
@@ -168,8 +168,8 @@ static inline void set_eiem(unsigned long val)
 /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
 #define __ldcw(a) ({						\
 	unsigned __ret;						\
-	__asm__ __volatile__(__LDCW " 0(%1),%0"			\
-		: "=r" (__ret) : "r" (a));			\
+	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
+		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
 	__ret;							\
 })
 
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From - Thu Nov 08 21:02:28 2018
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From: Joel Soete <soete.joel@scarlet.be>
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Subject: Re: in ccio_io_pdir_entry(),BUG_ON() seems to break gcc-4.2	optimization?
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Hello Grant,

Grant Grundler wrote:
> On Thu, Jun 26, 2008 at 07:28:03AM +0100, Joel Soete wrote:
>> Just for remind:
>>
>> Joel Soete wrote:
>>  >
>>  >
>> [snip]
>>  >>> But this time, it seems not consider assembly:
>>  >>>         asm volatile ("lci %%r0(%%sr1, %1), %0" : "=r" (ci) : "r"
>>  >>> (vba));
>>  >>>         asm volatile ("extru %1,19,12,%0" : "+r" (ci) : "r" (ci));
>>  >>>         asm volatile ("depw  %1,15,12,%0" : "+r" (pa) : "r" (ci));
>>  >>>
>>  >>> as a 'volatile' block and insert line 1c:
>>
>> This seems to make better what I want:
>>         __asm__ __volatile__ (
>>         "lci    %%r0(%%sr1, %2), %0\n"
>>         "\textru        %0,19,12,%0\n"
>>         "\tdepw         %0,15,12,%1\n"
>>         : "+r" (ci), "+r" (pa)
>>         : "r" (vba)
>>         : "memory"
> 
> Why the "memory"? This asm code isn't modifying memory at all.
> 
well I certainly still have wrongly understand what "memory" clobber means but for me "pa" is a memory location modified 
(the plus sign in '"+r" (pa)' and that either after 64bit computation or 32bit initialization pa=0).
But your comment make me fill I am again wrong (well definitively C is not my language ;-) .)

>>         );
>>
>>
>> in <ccio_map_sg>
>>   200:	06 80 53 13 	lci r0(sr1,r20),r19		      |	 200:	08 1a 02 54 	copy r26,r20
>>   204:	d2 73 1a 74 	extrw,u r19,19,12,r19		      |	 204:	06 a0 53 14 	lci
>> r0(sr1,r21),r20
>>   208:	08 1a 02 5c 	copy r26,ret0			      |	 208:	d2 94 1a 74 	extrw,u
>> r20,19,12,r20
>>   20c:	d7 93 0e 14 	depw r19,15,12,ret0		      |	 20c:	d7 94 0e 14 	depw
>> r20,15,12,ret0
>>   210:	0e dc 12 80 	stw ret0,0(r22)				 210:	0e dc 12 80 	stw ret0,0(r22)
>>   214:	06 c0 12 80 	fdc r0(r22)				 214:	06 c0 12 80 	fdc r0(r22)
>>   218:	00 00 04 00 	sync					 218:	00 00 04 00 	sync
>>
>> J.
>>
>> PS: I don't yet understand why kernel panicing when I try to get rid to
>> reserve 'ci' variable and use in place a gr as r19 (even if clobbered), the
>> produced object seems ok but resulting kernel panicing (even after a full
>> rebuild after a make distclean???)
> 
> What's wrong with "ci" variable? It's just another register.
well the idea is that "ci" variable is just there as a tmp variable just used in this asm code, right.
so why not simply get rid of its declaration (btw save a line of code ;-)) and just use a common temporay reg as r19?

but what I show above is just a 'diff -y' between a objdump's hunk of ccio-dma.o:
on the left side what gcc produce with the original code (3 different asm lines) (this kernel was well booting fine)
on the right side what same compile produce with new code (1 asm line).

Otoh, based on my few knowldge on parisc asm, it seems to me that something like:
          __asm__ __volatile__ (
          "lci    %%r0(%%sr1, %1), %%r19\n"
          "\textru        %%r19,19,12,%%r19\n"
          "\tdepw         %%r19,15,12,%0\n"
          : "+r" (pa)
          : "r" (vba)
          : "r19")

would do the same job, but all my test results was a panicing kernel???
(even thought if I am diffing 2 objdump of the only ccio-dma.o, it looks like gr are just used differently. but may be did I 
missed another wrong stuff).

That said, nothing of that help to fixe ccio-dma driver issue ;-(

My latest hope is relayfs to grab more debug info (I just need a bit more free time).

> C compiler will allocate it and then we pass it to the asm().
> 
> And are you sure it's ok to use r19?
> 
yes that was the only lines, I was working on.

Tx,
	J.

> hth,
> grant
> 
> 
> 
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From - Thu Nov 08 21:02:28 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: in ccio_io_pdir_entry(),BUG_ON() seems to break gcc-4.2     optimization?
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> Grant Grundler wrote:
> > On Thu, Jun 26, 2008 at 07:28:03AM +0100, Joel Soete wrote:
> >> Just for remind:
> >>
> >> Joel Soete wrote:
> >>  >
> >>  >
> >> [snip]
> >>  >>> But this time, it seems not consider assembly:
> >>  >>>         asm volatile ("lci %%r0(%%sr1, %1), %0" : "=r" (ci) : "r"
> >>  >>> (vba));
> >>  >>>         asm volatile ("extru %1,19,12,%0" : "+r" (ci) : "r" (ci));
> >>  >>>         asm volatile ("depw  %1,15,12,%0" : "+r" (pa) : "r" (ci));
> >>  >>>
> >>  >>> as a 'volatile' block and insert line 1c:
> >>
> >> This seems to make better what I want:
> >>         __asm__ __volatile__ (
> >>         "lci    %%r0(%%sr1, %2), %0\n"
> >>         "\textru        %0,19,12,%0\n"
> >>         "\tdepw         %0,15,12,%1\n"
> >>         : "+r" (ci), "+r" (pa)
> >>         : "r" (vba)
> >>         : "memory"
> > 
> > Why the "memory"? This asm code isn't modifying memory at all.
> > 
> well I certainly still have wrongly understand what "memory" clobber means but for me "pa" is a memory location modified 
> (the plus sign in '"+r" (pa)' and that either after 64bit computation or 32bit initialization pa=0).

The "+r" constraint indicates a register operand that is both read and written.
However, "ci" and "pa" are not read, so the constraints for them should be
"=r".  None of the instructions modify memory, so the "memory" clobber
is unnecessary.

> so why not simply get rid of its declaration (btw save a line of code ;-)) and just use a common temporay reg as r19?

r19 is the pic register in 64-bit mode and can't be used without saving
and restoring it.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: Another ldcw inline assembler patch
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On Sat, Jun 28, 2008 at 06:07:57PM -0400, John David Anglin wrote:
> There are two reasons to expose the memory *a in the asm:
> 
> 1) To prevent the compiler from discarding a preceeding write to *a, and
> 2) to prevent it from caching *a in a register over the asm.

Do either of those scenarios apply, given that every usage of this is
preceded by an asm clobbering memory?

I believe the correct thing to do is to take out the two mb()s in the
various spin_lock routines and make the __ldcw() macro itself clobber
memory.

-- 
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operating system, but compare it to ours.  We can't possibly take such
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Subject: Re: Another ldcw inline assembler patch
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> On Sat, Jun 28, 2008 at 06:07:57PM -0400, John David Anglin wrote:
> > There are two reasons to expose the memory *a in the asm:
> > 
> > 1) To prevent the compiler from discarding a preceeding write to *a, and
> > 2) to prevent it from caching *a in a register over the asm.
> 
> Do either of those scenarios apply, given that every usage of this is
> preceded by an asm clobbering memory?

Probably not, I was just concerned about the correctness of the
__ldcw() macro itself.  I think the use of the macro should be
confined to small inline functions to try to limit the effect
of clobbering memory on GCC's optimization of loads and stores.

> I believe the correct thing to do is to take out the two mb()s in the
> various spin_lock routines and make the __ldcw() macro itself clobber
> memory.

This seems reasonable if you want __ldcw() to be a memory barrier.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Sjoerd Simons <sjoerd@luon.net>
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Subject: kernel fault when booting with dual link network card
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--Nq2Wo0NMKNjxTN9z
Content-Type: text/plain; charset=us-ascii
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Hi,

  Kernel 2.6.24 causes the machine to fault when a dual-link network card is
  installed right after loading the tulip module. Output of SER PIM attached.

    Sjoerd
-- 
What the world *really* needs is a good Automatic Bicycle Sharpener.

--Nq2Wo0NMKNjxTN9z
Content-Type: application/cap
Content-Disposition: attachment; filename="tulip.cap"
Content-Transfer-Encoding: quoted-printable

Main Menu: Enter command > SER PIM=0A=0APROCESSOR PIM INFORMATION=0A=0A----=
-------------  Processor HPMC Information ------------------=0A=0ATimestamp=
 =3D   Sun Jun  29 14:45:17 GMT 2008    (20:08:06:29:14:45:17)=0A=0AHPMC Ch=
assis Codes =3D 0xcbf0  0x505f  0xcbf2  0xcbfc  =0A=0AGeneral Registers 0 -=
 31=0A 0 -  3  0x00000000  0x10248800  0x10245748  0x17cb45c8  =0A 4 -  7  =
0x0000000f  0x008aac94  0x1740d8d8  0x10410f88  =0A 8 - 11  0x0000006d  0x1=
740d800  0x0000006d  0x00000002  =0A12 - 15  0x0000006d  0x008a6728  0x0089=
27f0  0x00000191  =0A16 - 19  0x00000000  0x00000000  0x00000000  0x0000000=
2  =0A20 - 23  0x0000000e  0x00814000  0x17437800  0x00000002  =0A24 - 27  =
0x00000006  0x00000008  0x17404560  0x103da010  =0A28 - 31  0x00008068  0x2=
a86fc6c  0x17cb4680  0x17cb4608  =0A=0A<Press any key to continue (q to qui=
t)> =0A=0AControl Registers 0 - 31=0A 0 -  3  0x00000000  0x00000000  0x000=
00000  0x00000000  =0A 4 -  7  0x00000000  0x00000000  0x00000000  0x000000=
00  =0A 8 - 11  0x0000060a  0x00000000  0x000000c0  0x0000000d  =0A12 - 15 =
 0x00000000  0x00000000  0x00109800  0xf1000000  =0A16 - 19  0x39b0e584  0x=
00000000  0x10252bdc  0xd79c0e18  =0A20 - 23  0x00000000  0x0081406a  0x000=
4fe0e  0x00000000  =0A24 - 27  0x0041e000  0x07cd6000  0xffffffff  0x400014=
60  =0A28 - 31  0xaaaaaaaa  0x11111111  0x17cb4000  0xf0102918  =0A=0ASpace=
 Registers 0 - 7=0A 0 -  3  0x00000000  0x00000000  0x00000000  0x00000305 =
 =0A 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000  =0A=0A<Press a=
ny key to continue (q to quit)> =0A=0AIIA Space                    =3D 0x00=
000000=0AIIA Offset                   =3D 0x10252be0=0ACheck Type          =
         =3D 0x20000000=0ACPU State                    =3D 0x9e000004=0ACac=
he Check                  =3D 0x00000000=0ATLB Check                    =3D=
 0x00000000=0ABus Check                    =3D 0x00310000=0AAssists Check  =
              =3D 0x00000000=0AAssist State                 =3D 0x00000000=
=0ASystem Responder Address     =3D 0xfff88068=0ASystem Requestor Address  =
   =3D 0xfffbe000=0APath Info                    =3D 0x00000000=0APhysical =
Memory              =3D 0x08000000=0AAvailable Memory             =3D 0x080=
00000=0A=0A<Press any key to continue (q to quit)> =0A=0ACPU Diagnose Regis=
ter 0                =3D 0x600048fc=0AMIOC Status  Register                =
  =3D 0x00001002=0AMIOC Control Register                  =3D 0x98050000=0A=
MIOC MDERRADD Error Address Register   =3D 0x00000008=0AMIOC DMAERR DMA Err=
or Register         =3D 0xffffffff=0AMIOC DIOERR IO  Error Register        =
 =3D 0xfff88068=0A=0A<Press any key to continue (q to quit)> =0A=0A--------=
---------  Processor TOC Information -------------------=0A=0AGeneral Regis=
ters 0 - 31=0A 0 -  3  0x00000000  0x0f424000  0x001d31ec  0x0000da00  =0A =
4 -  7  0x001e8000  0x00000210  0x00000000  0x00000000  =0A 8 - 11  0x00000=
000  0x7ffe6000  0x000000a5  0x4000c640  =0A12 - 15  0x40005640  0x4000c640=
  0x4000c640  0x0000003c  =0A16 - 19  0x40004cb8  0x00000002  0x4000c9b0  0=
x001e8480  =0A20 - 23  0xc9566cff  0x0004000e  0x00458a88  0xd73d6d46  =0A2=
4 - 27  0x00e7319b  0x00000000  0x01e84800  0x004b36a0  =0A28 - 31  0x00000=
000  0x0fbc5200  0x7ffe6c08  0xd912beff  =0A=0A<Press any key to continue (=
q to quit)> =0A=0AControl Registers 0 - 31=0A 0 -  3  0x00000000  0x0000000=
0  0x00000000  0x00000000  =0A 4 -  7  0x00000000  0x00000000  0x00000000  =
0x00000000  =0A 8 - 11  0x0000b50b  0x000066f4  0x000000c0  0x0000001a  =0A=
12 - 15  0x00000000  0x00000000  0x00018000  0xaf000800  =0A16 - 19  0xd73e=
472c  0x00000000  0x0012a218  0x8af4800a  =0A20 - 23  0x00000000  0x0012a21=
8  0x0004700f  0x10000488  =0A24 - 27  0x00458a88  0x001da000  0x01e84800  =
0x7ffe6c08  =0A28 - 31  0x00458a88  0x00008000  0x000d7390  0x0720935c  =0A=
=0ASpace Registers 0 - 7=0A 0 -  3  0x00000000  0x00004b05  0x00000000  0x0=
0000000  =0A 4 -  7  0x00000000  0x00004355  0x00004b05  0x00000000  =0A=0A=
IIA Space                    =3D 0x00000000=0AIIA Offset                   =
=3D 0x0012a21c=0ACPU State                    =3D 0x9e000001=0A=0A=0A<Press=
 any key to continue (q to quit)> =0A=0AMemory Error Log Information:=0A=0A=
Timestamp =3D   Sun Jun  29 14:45:18 GMT 2008    (20:08:06:29:14:45:18)=0A=
=0A   No memory errors logged=0A=0A=0AI/O Module Error Log Information:=0A=
=0ATimestamp =3D   Sun Jun  29 14:45:18 GMT 2008    (20:08:06:29:14:45:18)=
=0A=0ABus      HPA       Module Type      Path  Slt Md Sev Estat Requestor =
Responder=0A----- ---------- ---------------- -------- -- -- --- ---- -----=
----- ----------=0AGSC   0x0000006d A DMA I/O        8/8       2  0 fe  0x0=
3 0x00000000 0x00000000=0A=0A<Press any key to continue (q to quit)> =0A=0A=
IO Bus Converter Log=0A--------------------=0A=0AGBOA HPA            =3D 0x=
fff8c000=0AGBOA UBC_IO_CONTROL =3D 0x00000080=0ANIO HPA             =3D 0xf=
1000001=0AGBOA IO_IO_LO       =3D 0xf1000000=0AGBOA IO_IO_HI       =3D 0xf1=
080000=0A=0AMain Menu: Enter command > =0AMain Menu: Enter command >  =0A
--Nq2Wo0NMKNjxTN9z--
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On Sun, 2008-06-29 at 16:17 +0100, Sjoerd Simons wrote:
> Hi,
> 
>   Kernel 2.6.24 causes the machine to fault when a dual-link network card is
>   installed right after loading the tulip module. Output of SER PIM attached.

I'm afraid just the hex dump isn't really any use.  To be possibly
useful, we need at least the symbolic addresses of IAOQ and %r2.
That's:

%r2: 0x10245748
IAOQ[0]: 0x10252bdc
IAOQ[1]: 0x10252be0

the I/O module error seems to indicate an incorrect GSC DMA read.

James


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On Sun, Jun 29, 2008 at 11:00:34AM -0500, James Bottomley wrote:
> On Sun, 2008-06-29 at 16:17 +0100, Sjoerd Simons wrote:
> > Hi,
> > 
> >   Kernel 2.6.24 causes the machine to fault when a dual-link network card is
> >   installed right after loading the tulip module. Output of SER PIM attached.
> 
> I'm afraid just the hex dump isn't really any use.  To be possibly
> useful, we need at least the symbolic addresses of IAOQ and %r2.
> That's:
> 
> %r2: 0x10245748
> IAOQ[0]: 0x10252bdc
> IAOQ[1]: 0x10252be0
> 
> the I/O module error seems to indicate an incorrect GSC DMA read.

I don't think it's going to tell us anything useful.  I believe that
we've not set up the cardmode Dino correctly to respond to iomem space
and as a result the first access to iomem space will fault.

Of course, this is a machine with CCIO, so it could be something going
wrong with the CCIO programming too.  But I think it's Dino.

-- 
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From - Thu Nov 08 21:02:28 2018
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From: Joel Soete <soete.joel@scarlet.be>
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Matthew Wilcox wrote:
> On Sun, Jun 29, 2008 at 11:00:34AM -0500, James Bottomley wrote:
>> On Sun, 2008-06-29 at 16:17 +0100, Sjoerd Simons wrote:
>>> Hi,
>>>
>>>   Kernel 2.6.24 causes the machine to fault when a dual-link network card is
>>>   installed right after loading the tulip module. Output of SER PIM attached.
>> I'm afraid just the hex dump isn't really any use.  To be possibly
>> useful, we need at least the symbolic addresses of IAOQ and %r2.
>> That's:
>>
>> %r2: 0x10245748
>> IAOQ[0]: 0x10252bdc
>> IAOQ[1]: 0x10252be0
>>
>> the I/O module error seems to indicate an incorrect GSC DMA read.
> 
> I don't think it's going to tell us anything useful.  I believe that
> we've not set up the cardmode Dino correctly to respond to iomem space
> and as a result the first access to iomem space will fault.
> 
> Of course, this is a machine with CCIO, so it could be something going
> wrong with the CCIO programming too.

Yes specially if the system low in RAM (e.g. when I have to reduce ram of my c110 from 512M to 64M, it became impossible to 
boot it ;-( .)
After longly thought it was a pb of coherency, I am now convince that's the key pb: my d380 boot fine with 256M but I 
resurrect 'ccio_mem_ratio' which reduce artificially iova_space_size and if I can still boot it, disk's issues occur more 
quickly (a simple tar -xvf of a big file is enough now).
Right now, I reach to put in place many trace_mark() in this driver and thanks to Mathieu Desnoyers's patch and his help, 
it's now possible to me to collect a lot of info without degrading too much system perf. Just need more time to collect 
relevant info and analyze it ;-)

   But I think it's Dino.
> 
hypothesis easy to verify: just remove this card.

hth,
	J.
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On Sun, Jun 29, 2008 at 05:54:15PM +0000, Joel Soete wrote:
>   But I think it's Dino.
>>
> hypothesis easy to verify: just remove this card.

Without the card the machine seems to work fine indeed.

  Sjoerd
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Sjoerd Simons wrote:
> On Sun, Jun 29, 2008 at 05:54:15PM +0000, Joel Soete wrote:
>>   But I think it's Dino.
>> hypothesis easy to verify: just remove this card.
> 
> Without the card the machine seems to work fine indeed.
> 
tx for feedback.

btw, sorry if I miss it but what kind system is: a C, D or a K model?

Tx,
	J.

>   Sjoerd
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On Sun, Jun 29, 2008 at 06:11:49PM +0000, Joel Soete wrote:
>
>
> Sjoerd Simons wrote:
>> On Sun, Jun 29, 2008 at 05:54:15PM +0000, Joel Soete wrote:
>>>   But I think it's Dino.
>>> hypothesis easy to verify: just remove this card.
>>
>> Without the card the machine seems to work fine indeed.
>>
> tx for feedback.
>
> btw, sorry if I miss it but what kind system is: a C, D or a K model?

This is a D9000 machine with a D220 processor

  Sjoerd
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On Sat, Jun 28, 2008 at 10:26:25PM +0000, Joel Soete wrote:
...
>> What's wrong with "ci" variable? It's just another register.
> well the idea is that "ci" variable is just there as a tmp variable just 
> used in this asm code, right.
> so why not simply get rid of its declaration (btw save a line of code ;-)) 
> and just use a common temporay reg as r19?

No - don't do that. Let the compiler do the work of allocating registers.
It's really good at it. :)  Much better than you and I combined. :)
All we need to do is tell the compiler we need a register.

cheers,
grant
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Subject: Re: Another ldcw inline assembler patch
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On Sat, Jun 28, 2008 at 05:34:07PM -0600, Matthew Wilcox wrote:
> On Sat, Jun 28, 2008 at 06:07:57PM -0400, John David Anglin wrote:
> > There are two reasons to expose the memory *a in the asm:
> > 
> > 1) To prevent the compiler from discarding a preceeding write to *a, and
> > 2) to prevent it from caching *a in a register over the asm.
> 
> Do either of those scenarios apply, given that every usage of this is
> preceded by an asm clobbering memory?
> 
> I believe the correct thing to do is to take out the two mb()s in the
> various spin_lock routines and make the __ldcw() macro itself clobber
> memory.

I agree. Do you want jda to submit another patch or did you want kyle to
take jda's patch and apply a second one to remove the mb()'s?

thanks.
grant

> 
> -- 
> Intel are signing my paycheques ... these opinions are still mine
> "Bill, look, we understand that you're interested in selling us this
> operating system, but compare it to ours.  We can't possibly take such
> a retrograde step."
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On Sun, Jun 29, 2008 at 04:17:59PM +0100, Sjoerd Simons wrote:
> Hi,
> 
>   Kernel 2.6.24 causes the machine to fault when a dual-link network card is
>   installed right after loading the tulip module. Output of SER PIM attached.

BTW, once you've captured a PIM, it needs to be cleared with "ser clearpim"
before it will record the next one.

And thanks - this confirmed what several had suspected:

Timestamp =   Sun Jun  29 14:45:18 GMT 2008    (20:08:06:29:14:45:18)

Bus      HPA       Module Type      Path  Slt Md Sev Estat Requestor Responder
----- ---------- ---------------- -------- -- -- --- ---- ---------- ----------
GSC   0x0000006d A DMA I/O        8/8       2  0 fe  0x03 0x00000000 0x00000000

Type "io info" will dump all the IO devices and you can match the "8/8"
path to the offending device. I suspect it's the card-mode Dino as well.

We probably need to enable "PCI_DEBUG" which depends on "DEBUG_KERNEL".
Enable both of those, then capture the console output when booting
that kernel. We can then walk through the Dino and PCI code to see
what didn't get setup correctly.

thanks,
grant
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On Sun, 2008-06-29 at 14:55 -0600, Grant Grundler wrote:
> On Sat, Jun 28, 2008 at 05:34:07PM -0600, Matthew Wilcox wrote:
> > On Sat, Jun 28, 2008 at 06:07:57PM -0400, John David Anglin wrote:
> > > There are two reasons to expose the memory *a in the asm:
> > > 
> > > 1) To prevent the compiler from discarding a preceeding write to *a, and
> > > 2) to prevent it from caching *a in a register over the asm.
> > 
> > Do either of those scenarios apply, given that every usage of this is
> > preceded by an asm clobbering memory?
> > 
> > I believe the correct thing to do is to take out the two mb()s in the
> > various spin_lock routines and make the __ldcw() macro itself clobber
> > memory.
> 
> I agree. Do you want jda to submit another patch or did you want kyle to
> take jda's patch and apply a second one to remove the mb()'s?

I really wouldn't do that.  Parisc is fairly unique in that we have C
spinlocks (most other architectures have asm coded ones).  The
requirement of the spinlock routines are that they be atomic memory
clobbers (as in the sequence of statements that does one shouldn't be
moved by the compiler)---which is why our C ones have mb before and
after.

if you make __ldcw() a memory clobber, that will pretty much cover the
atomic memory clobber requirements of __raw_spin_lock_flags() ... but
look at the rest of them ... it won't cover for them.  If we have to
have these mb()s in the rest, it makes sense to have them in
__raw_spin_lock_flags() as well, just to avoid problems if someone tries
to optimise again.  There probably should be a comment in this file to
that effect.

James


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From - Thu Nov 08 21:02:29 2018
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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On Sun, Jun 29, 2008 at 10:22:21AM -0600, Matthew Wilcox wrote:
...
> > the I/O module error seems to indicate an incorrect GSC DMA read.
> 
> I don't think it's going to tell us anything useful.  I believe that
> we've not set up the cardmode Dino correctly to respond to iomem space
> and as a result the first access to iomem space will fault.

It depends on if the first access is a read or a write. If it's a read
(and odds are good that's true), we will get the exact IP that faulted 
and get something about "CPU timeout" in the PIM dump.

> Of course, this is a machine with CCIO, so it could be something going
> wrong with the CCIO programming too.  But I think it's Dino.

I doubt it too. I agree it's much more likely something with Dino.

thanks,
grant
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From - Thu Nov 08 21:02:29 2018
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From: Joel Soete <soete.joel@scarlet.be>
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Subject: Re: in ccio_io_pdir_entry(),BUG_ON() seems to break gcc-4.2	optimization?
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Hello Grant,

Grant Grundler wrote:
> On Sat, Jun 28, 2008 at 10:26:25PM +0000, Joel Soete wrote:
> ...
>>> What's wrong with "ci" variable? It's just another register.
>> well the idea is that "ci" variable is just there as a tmp variable just 
>> used in this asm code, right.
>> so why not simply get rid of its declaration (btw save a line of code ;-)) 
>> and just use a common temporay reg as r19?
> 
> No - don't do that. Let the compiler do the work of allocating registers.
> It's really good at it. :)  Much better than you and I combined. :)

You and gcc already prove it to me ;-)

> All we need to do is tell the compiler we need a register.
> 
Ok

Taken also into account of David remarks, here is the latest stuff tested with success:

         __asm__ __volatile__ (
         "lci    %%r0(%%sr1, %2), %0\n"
         "\textru        %0,19,12,%0\n"
         "\tdepw         %0,15,12,%1\n"
         : "=r" (ci), "=r" (pa)
         : "r" (vba)
         );

Tx to all for kind comments, they learn me a lot ;-)

J.

> cheers,
> grant
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From - Thu Nov 08 21:02:29 2018
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Subject: About iommu-helpers.h: where can I find detailed info on the scatter 
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Hello Grant,

I am looking for such kind of reference because I am totally ignorant on this
subject (as well as many others ;-) ) and didn't find yet the good entry point?

Re-reading ccio-dma code for the n*1000 time, I noticed your comment:
/* Fast path single entry scatterlists */
if (nents == 1) {
[snip]

This comment make me thought: it's just a shortcut and the rest of the code
would just slowdown operation?

No?

In fact the 2 drivers (sba and ccio) without this hunk of code make panicing
the boot. 
For the ccio: some where in the initialization of the first scsi drive (no
more info)
For the sba: seems nearly at the same place but with addtional message
[snip]
sym0: <895a> rev 0x1 at pci 0000:00:0f.0 irq 20
sym0: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
Kernel panic - not syncing:
/Extra/linux-current-trace/drivers/parisc/sba_iommu.c: I/O MMU @ 0000a000 is
out of mapping resources   

Is it normal?

Then with help of relayfs and Mathieu Denoyer's patch, I introduced some
tracepoint in iommu-helpers.h as follow:

static inline unsigned int
iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents,
                unsigned long hint,
                void (*iommu_io_pdir_entry)(u64 *, space_t, unsigned long,
                                            unsigned long))
{
        struct scatterlist *dma_sg = startsg;   /* pointer to current DMA */
        unsigned int n_mappings = 0;
        unsigned long dma_offset = 0, dma_len = 0;
        u64 *pdirp = NULL;

#ifdef CONFIG_RELAY_DEBUGFS
START:
        {
        unsigned long start = (unsigned long)&&START;
        TRC_RES(iommu_fill_pdir_start, "%s() at 0x%lx\n", __func__, start);
        };
#endif

[snip]
        while (nents-- > 0) {
                unsigned long vaddr;
                long size;

                DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
                           (unsigned long)sg_dma_address(startsg),
sg_dma_len(startsg),
                           sg_virt_addr(startsg), startsg->length
                );

#ifdef CONFIG_RELAY_DEBUGFS
                TRC_RUN_SG(iommu_fill_pdir_1,
                        " %d : 0x%lx/0x%x 0x%lx/%x\n", nents,
                        (unsigned long)sg_dma_address(startsg),
sg_dma_len(startsg),
                        sg_virt_addr(startsg), startsg->length
                );
#endif

[snip]

                        vaddr += IOVP_SIZE;
                        size -= IOVP_SIZE;
                        pdirp++;
                } while(unlikely(size > 0));
                startsg++;
        }

#ifdef CONFIG_RELAY_DEBUGFS
DONE:
        {
        unsigned long done = (unsigned long)&&DONE;
        TRC_RES(iommu_fill_pdir_done, "%s() at 0x%lx\n", __func__, done);
        };
#endif

        return(n_mappings);
}

Well relayfs is may be not perfect (some time I lost some messages) but I can
anyway collect info like:

[snip]
  1882 :1214908412951002084:ccio_alloc_range_2:ccio_alloc_range() res_idx
0xd13 res_hint: 0x1fc3ad10
  1883 :1214908412951265428:iommu_coalesce_chunks_done:iommu_coalesce_chunks()
at 0x1024c26c
  1884 :1214908412951325361:iommu_fill_pdir_start:iommu_fill_pdir() at 0x1024c2ac
  1885 :1214908412951393706:iommu_fill_pdir_1: 11 : 0x86893c00/0x400
0x1b5d4c00/400
  1886 :1214908412951462584:iommu_fill_pdir_2: dma_sg == 0x1fd37420 ?< startsg
== 0x1fd37420
  1887 :1214908412951531800:iommu_fill_pdir_1: 10 : 0x86894800/0x400
0x1f6e8800/400
  1888 :1214908412951599045:iommu_fill_pdir_2: dma_sg == 0x1fd37434 ?< startsg
== 0x1fd37434
  1889 :1214908412951666334:iommu_fill_pdir_1: 9 : 0x86895c00/0x400 0x1f14ac00/400
  1890 :1214908412951733250:iommu_fill_pdir_2: dma_sg == 0x1fd37448 ?< startsg
== 0x1fd37448
  1891 :1214908412951800517:iommu_fill_pdir_1: 8 : 0x86896800/0x400 0x10526800/400
  1892 :1214908412951867600:iommu_fill_pdir_2: dma_sg == 0x1fd3745c ?< startsg
== 0x1fd3745c
  1893 :1214908412951935067:iommu_fill_pdir_1: 7 : 0x86897800/0x400 0x10525800/400
  1894 :1214908412952003684:iommu_fill_pdir_2: dma_sg == 0x1fd37470 ?< startsg
== 0x1fd37470
  1895 :1214908412952070750:iommu_fill_pdir_1: 6 : 0x86898800/0x400 0x100d9800/400
  1896 :1214908412952137567:iommu_fill_pdir_2: dma_sg == 0x1fd37484 ?< startsg
== 0x1fd37484
  1897 :1214908412952204734:iommu_fill_pdir_1: 5 : 0x86899000/0x400 0x10753000/400
  1898 :1214908412952271684:iommu_fill_pdir_2: dma_sg == 0x1fd37498 ?< startsg
== 0x1fd37498
  1899 :1214908412952338850:iommu_fill_pdir_1: 4 : 0x8689ac00/0x400 0x100f7c00/400
  1900 :1214908412952405934:iommu_fill_pdir_2: dma_sg == 0x1fd374ac ?< startsg
== 0x1fd374ac
  1901 :1214908412952473067:iommu_fill_pdir_1: 3 : 0x8689b800/0x400 0x1f5f7800/400
  1902 :1214908412952539984:iommu_fill_pdir_2: dma_sg == 0x1fd374c0 ?< startsg
== 0x1fd374c0
  1903 :1214908412952607284:iommu_fill_pdir_1: 2 : 0x8689c400/0x400 0x1f2f6400/400
  1904 :1214908412952674367:iommu_fill_pdir_2: dma_sg == 0x1fd374d4 ?< startsg
== 0x1fd374d4
  1905 :1214908412952741700:iommu_fill_pdir_1: 1 : 0x8689dc00/0x400 0x1d7abc00/400
  1906 :1214908412952808922:iommu_fill_pdir_2: dma_sg == 0x1fd374e8 ?< startsg
== 0x1fd374e8
  1907 :1214908412952875811:iommu_fill_pdir_1: 0 : 0x8689e800/0x400 0x1d3a5800/400
  1908 :1214908412952942472:iommu_fill_pdir_2: dma_sg == 0x1fd374fc ?< startsg
== 0x1fd374fc
  1909 :1214908412953004089:iommu_fill_pdir_done:iommu_fill_pdir() at 0x1024c52c
  1910 :1214908412953063117:ccio_map_sg_2:ccio_map_sg() DONE 12 mappings
  1911 :1214908412968545783:ccio_unmap_sg_1:ccio_unmap_sg() START 12 entries,
 1b5d4c00,400

[snip]
  7125 :1214908449024631922:iommu_coalesce_chunks_done:iommu_coalesce_chunks()
at 0x1024c26c
  7126 :1214908449024692195:iommu_fill_pdir_start:iommu_fill_pdir() at 0x1024c2ac
  7127 :1214908449024759656:iommu_fill_pdir_1: 24 : 0x82e40000/0x10000
0x177dc000/1000
  7128 :1214908449024829078:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd382c0
  7129 :1214908449024895239:iommu_fill_pdir_1: 23 : 0x0/0x0 0x177db000/1000
  7130 :1214908449024965489:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd382d4
  7131 :1214908449025030956:iommu_fill_pdir_1: 22 : 0x0/0x0 0x177da000/1000
  7132 :1214908449025095917:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd382e8
  7133 :1214908449025161356:iommu_fill_pdir_1: 21 : 0x0/0x0 0x177d9000/1000
  7134 :1214908449025226456:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd382fc
  7135 :1214908449025291889:iommu_fill_pdir_1: 20 : 0x0/0x0 0x177d8000/1000
  7136 :1214908449025356850:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd38310
  7137 :1214908449025422456:iommu_fill_pdir_1: 19 : 0x0/0x0 0x177d7000/1000
  7138 :1214908449025487589:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd38324
  7139 :1214908449025553222:iommu_fill_pdir_1: 18 : 0x0/0x0 0x177d6000/1000
  7140 :1214908449025618484:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd38338
  7141 :1214908449025683789:iommu_fill_pdir_1: 17 : 0x0/0x0 0x177d5000/1000
  7142 :1214908449025748622:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd3834c
  7143 :1214908449025814056:iommu_fill_pdir_1: 16 : 0x0/0x0 0x177d4000/1000
  7144 :1214908449025879050:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd38360
  7145 :1214908449025944539:iommu_fill_pdir_1: 15 : 0x0/0x0 0x177d3000/1000
  7146 :1214908449026009672:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd38374
  7147 :1214908449026075139:iommu_fill_pdir_1: 14 : 0x0/0x0 0x177d2000/1000
  7148 :1214908449026140100:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd38388
  7149 :1214908449026205672:iommu_fill_pdir_1: 13 : 0x0/0x0 0x177d1000/1000
  7150 :1214908449026270806:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd3839c
  7151 :1214908449026336422:iommu_fill_pdir_1: 12 : 0x0/0x0 0x177d0000/1000
  7152 :1214908449026401684:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd383b0
  7153 :1214908449026467206:iommu_fill_pdir_1: 11 : 0x0/0x0 0x177dd000/1000
  7154 :1214908449026532200:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd383c4
  7155 :1214908449026598072:iommu_fill_pdir_1: 10 : 0x0/0x0 0x177eb000/1000
  7156 :1214908449026665228:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd383d8
  7157 :1214908449026730839:iommu_fill_pdir_1: 9 : 0x0/0x0 0x177ea000/1000
  7158 :1214908449026796150:iommu_fill_pdir_2: dma_sg == 0x1fd382c0 ?< startsg
== 0x1fd383ec
  7159 :1214908449026864200:iommu_fill_pdir_1: 8 : 0x82e50000/0x9000
0x177e9000/1000
  7160 :1214908449026932067:iommu_fill_pdir_2: dma_sg == 0x1fd382d4 ?< startsg
== 0x1fd38400
  7161 :1214908449026997739:iommu_fill_pdir_1: 7 : 0x0/0x0 0x177e8000/1000
  7162 :1214908449027063117:iommu_fill_pdir_2: dma_sg == 0x1fd382d4 ?< startsg
== 0x1fd38414
  7163 :1214908449027129006:iommu_fill_pdir_1: 6 : 0x0/0x0 0x177e7000/1000
  7164 :1214908449027194417:iommu_fill_pdir_2: dma_sg == 0x1fd382d4 ?< startsg
== 0x1fd38428
  7165 :1214908449027260439:iommu_fill_pdir_1: 5 : 0x0/0x0 0x177e6000/1000
  7166 :1214908449027325356:iommu_fill_pdir_2: dma_sg == 0x1fd382d4 ?< startsg
== 0x1fd3843c
  7167 :1214908449027391039:iommu_fill_pdir_1: 4 : 0x0/0x0 0x177e5000/1000
  7168 :1214908449027455872:iommu_fill_pdir_2: dma_sg == 0x1fd382d4 ?< startsg
== 0x1fd38450
  7169 :1214908449027521739:iommu_fill_pdir_1: 3 : 0x0/0x0 0x177e4000/1000
  7170 :1214908449027586800:iommu_fill_pdir_2: dma_sg == 0x1fd382d4 ?< startsg
== 0x1fd38464
  7171 :1214908449027652606:iommu_fill_pdir_1: 2 : 0x0/0x0 0x177e3000/1000
  7172 :1214908449027717417:iommu_fill_pdir_2: dma_sg == 0x1fd382d4 ?< startsg
== 0x1fd38478
  7173 :1214908449027783189:iommu_fill_pdir_1: 1 : 0x0/0x0 0x177e2000/1000
  7174 :1214908449027848139:iommu_fill_pdir_2: dma_sg == 0x1fd382d4 ?< startsg
== 0x1fd3848c
  7175 :1214908449027913478:iommu_fill_pdir_1: 0 : 0x0/0x0 0x177e1000/1000
  7176 :1214908449027978322:iommu_fill_pdir_2: dma_sg == 0x1fd382d4 ?< startsg
== 0x1fd384a0
  7177 :1214908449028039450:iommu_fill_pdir_done:iommu_fill_pdir() at 0x1024c52c
  7178 :1214908449028097834:ccio_map_sg_2:ccio_map_sg() DONE 2 mappings

and what is specially confusing to me are the values of couple "(unsigned
long)sg_dma_address(startsg)/sg_dma_len(startsg)" (see trace point
iommu_fill_pdir_1).

As I have no clue on what is correct or what is wrong, I very need more advises.

Tx in adavance,
    j.


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From - Thu Nov 08 21:02:29 2018
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Subject: Re: in ccio_io_pdir_entry(),BUG_ON() seems to break gcc-4.2
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On Mon, Jun 30, 2008 at 06:28:36PM +0000, Joel Soete wrote:
...
> Taken also into account of David remarks, here is the latest stuff tested 
> with success:
>
>         __asm__ __volatile__ (
>         "lci    %%r0(%%sr1, %2), %0\n"
>         "\textru        %0,19,12,%0\n"
>         "\tdepw         %0,15,12,%1\n"
>         : "=r" (ci), "=r" (pa)
>         : "r" (vba)
>         );

So can you remind me (and Kyle) why this is better than what is
there now?

> Tx to all for kind comments, they learn me a lot ;-)

welcome! :)

grant
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From - Thu Nov 08 21:02:29 2018
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Subject: Re: in ccio_io_pdir_entry(),BUG_ON() seems to break gcc-4.2	optimization?
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Grant Grundler wrote:
> On Mon, Jun 30, 2008 at 06:28:36PM +0000, Joel Soete wrote:
> ...
>> Taken also into account of David remarks, here is the latest stuff tested 
>> with success:
>>
>>         __asm__ __volatile__ (
>>         "lci    %%r0(%%sr1, %2), %0\n"
>>         "\textru        %0,19,12,%0\n"
>>         "\tdepw         %0,15,12,%1\n"
>>         : "=r" (ci), "=r" (pa)
>>         : "r" (vba)
>>         );
> 
> So can you remind me (and Kyle) why this is better than what is
> there now?
> 
mmm may be because gcc consider it now as only 1 'volatile' instruction:

in <ccio_map_sg>
-----------< Original code > --------------+------------< New stuff >-----------------
200: 06 80 53 13  lci r0(sr1,r20),r19      |  200: 08 1a 02 54  copy r26,r20
204: d2 73 1a 74  extrw,u r19,19,12,r19    |  204: 06 a0 53 14  lci r0(sr1,r21),r20
208: 08 1a 02 5c  copy r26,ret0            |  208: d2 94 1a 74  extrw,u r20,19,12,r20
20c: d7 93 0e 14  depw r19,15,12,ret0      |  20c: d7 94 0e 14  depw r20,15,12,ret0
210: 0e dc 12 80  stw ret0,0(r22)             210: 0e dc 12 80  stw ret0,0(r22)
214: 06 c0 12 80  fdc r0(r22)                 214: 06 c0 12 80  fdc r0(r22)
218: 00 00 04 00  sync                        218: 00 00 04 00  sync

thought?

>> Tx to all for kind comments, they learn me a lot ;-)
> 
> welcome! :)
> 
> grant
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Subject: Re: in ccio_io_pdir_entry(),BUG_ON() seems to break gcc-4.2
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On Wed, Jul 02, 2008 at 06:01:45PM +0000, Joel Soete wrote:
>> So can you remind me (and Kyle) why this is better than what is
>> there now?
> mmm may be because gcc consider it now as only 1 'volatile' instruction:
>
> in <ccio_map_sg>
> -----------< Original code > --------------+------------< New stuff 
> >-----------------
> 200: 06 80 53 13  lci r0(sr1,r20),r19      |  200: 08 1a 02 54  copy r26,r20
> 204: d2 73 1a 74  extrw,u r19,19,12,r19    |  204: 06 a0 53 14  lci r0(sr1,r21),r20
> 208: 08 1a 02 5c  copy r26,ret0            |  208: d2 94 1a 74  extrw,u r20,19,12,r20
> 20c: d7 93 0e 14  depw r19,15,12,ret0      |  20c: d7 94 0e 14  depw r20,15,12,ret0
> 210: 0e dc 12 80  stw ret0,0(r22)             210: 0e dc 12 80  stw ret0,0(r22)
> 214: 06 c0 12 80  fdc r0(r22)                 214: 06 c0 12 80  fdc r0(r22)
> 218: 00 00 04 00  sync                        218: 00 00 04 00  sync
>
> thought?

I'm not comfortable "New stuff" version is correct.

In "New Stuff", r20 gets clobbered and values copied from
r26 are lost. That's not the case in the original code.
"depw" only replaces 12 bits of "ret0" in the original code.

thanks,
grant
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[...]
> 
> In "New Stuff", r20 gets clobbered and values copied from
> r26 are lost. That's not the case in the original code.
> "depw" only replaces 12 bits of "ret0" in the original code.
> 
Good catch, in fact I would just have to save the read+write constraint on pa;
i.e this seems to make the drill:

        __asm__ __volatile__ (
        "lci    %%r0(%%sr1, %2), %0\n"
        "\textru        %0,19,12,%0\n"
        "\tdepw         %0,15,12,%1\n"
        : "=r" (ci), "+r" (pa)
        : "r" (vba)
        );

comparing produced objdump:
00000000 <ccio_io_pdir_entry>:           00000000 <ccio_io_pdir_entry>:
 0: 00 19 58 20  mtsp r25,sr1             0: 00 19 58 20  mtsp r25,sr1
 4: 23 80 0e 01  ldil L%-10000000,ret0    4: 23 80 0e 01  ldil L%-10000000,ret0
 8: 0b 98 0a 1c  add,l r24,ret0,ret0      8: 0b 98 0a 1c  add,l r24,ret0,ret0
 c: d7 97 0c 14  depw r23,31,12,ret0      c: d7 97 0c 14  depw r23,31,12,ret0
10: 0f 5c 12 88  stw ret0,4(r26)       | 10: 34 13 00 00  ldi 0,r19
14: 07 00 53 18  lci r0(sr1,r24),r24   | 14: 0f 5c 12 88  stw ret0,4(r26)
18: d3 18 1a 74  extrw,u r24,19,12,r24 | 18: 07 00 53 1c  lci r0(sr1,r24),ret0
1c: 34 1c 00 00  ldi 0,ret0            | 1c: d3 9c 1a 74  extrw,u ret0,19,12,ret0
20: d7 98 0e 14  depw r24,15,12,ret0   | 20: d6 7c 0e 14  depw ret0,15,12,r19
24: 0f 5c 12 80  stw ret0,0(r26)       | 24: 0f 53 12 80  stw r19,0(r26)
28: 07 40 12 80  fdc r0(r26)             28: 07 40 12 80  fdc r0(r26)
2c: 00 00 04 00  sync                    2c: 00 00 04 00  sync
30: e8 40 c0 02  bv,n r0(rp)             30: e8 40 c0 02  bv,n r0(rp)
Disassembly of section .text.ccio_free_consistent:Disassembly of section ...

This time r19 is well 'initialized' with 0 (as per C code pa = 0);
the coherent index in r28 (ret0) and after extrw, depw replaces 12 bits of r19.

Many thanks for re-reading ;-)
    J.

> thanks,
> grant
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> 


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Subject: [PATCH] drop superfluous .align 16
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This .align 16 is misplaced and should be in front of the ENTRY(lws_lock_start).
Works because of pure luck since we have a .align PAGE_SIZE before it instead.

Signed-off-by: Helge Deller <deller@gmx.de>

--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -640,7 +640,6 @@ END(sys_call_table64)
 	.align	PAGE_SIZE
 ENTRY(lws_lock_start)
 	/* lws locks */
-	.align 16
 	.rept 16
 	/* Keep locks aligned at 16-bytes */
 	.word 1
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On Tue, Jul 8, 2008 at 4:06 PM, Helge Deller <deller@gmx.de> wrote:
> This .align 16 is misplaced and should be in front of the ENTRY(lws_lock_start).
> Works because of pure luck since we have a .align PAGE_SIZE before it instead.

This is not true, the .align 16 aligns almost any object in the
subsection including .word.

However, it is superfluous since we have a .align PAGE_SIZE, but I was
probably being safe in the event that someone put an object before
lws_lock_start.

> Signed-off-by: Helge Deller <deller@gmx.de>
>
> --- a/arch/parisc/kernel/syscall.S
> +++ b/arch/parisc/kernel/syscall.S
> @@ -640,7 +640,6 @@ END(sys_call_table64)
>        .align  PAGE_SIZE
>  ENTRY(lws_lock_start)
>        /* lws locks */
> -       .align 16
>        .rept 16
>        /* Keep locks aligned at 16-bytes */
>        .word 1

Cheers,
Carlos.
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Subject: Re: [PATCH] drop superfluous .align 16
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Carlos O'Donell wrote:
> On Tue, Jul 8, 2008 at 4:06 PM, Helge Deller <deller@gmx.de> wrote:
>> This .align 16 is misplaced and should be in front of the ENTRY(lws_lock_start).
>> Works because of pure luck since we have a .align PAGE_SIZE before it instead.
> 
> This is not true, the .align 16 aligns almost any object in the
> subsection including .word.

Sure, but it does not take care of lws_lock_start itself.

> However, it is superfluous since we have a .align PAGE_SIZE, but I was
> probably being safe in the event that someone put an object before
> lws_lock_start.

What I mean is, that the lws_lock_start label should start at 16byte 
boundary, right? (it is due to the .align PAGE_SIZE).
Now, if e.g. the .word555 (see below) would be in there, then
lws_lock_start would be at PAGE_SIZE+4, while the .word1 would start at 
PAGE_SIZE+16, which is wrong for accessing the lws_lock_start variables, 
where the first entry should be "1".

Example:
        .align  PAGE_SIZE
        .word 5555  <<<- think this would be here.
ENTRY(lws_lock_start)
       /* lws locks */
      .align 16
      .rept 16
      /* Keep locks aligned at 16-bytes */
      .word 1

So, I still think it would be better to remove the .align16, or 
alternatively to move it in front of ENTRY(lws_lock_start) [to be on the 
safe side].

Am I really that wrong?

Helge

>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> --- a/arch/parisc/kernel/syscall.S
>> +++ b/arch/parisc/kernel/syscall.S
>> @@ -640,7 +640,6 @@ END(sys_call_table64)
>>        .align  PAGE_SIZE
>>  ENTRY(lws_lock_start)
>>        /* lws locks */
>> -       .align 16
>>        .rept 16
>>        /* Keep locks aligned at 16-bytes */
>>        .word 1
> 
> Cheers,
> Carlos.
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On Wed, Jul 9, 2008 at 3:50 PM, Helge Deller <deller@gmx.de> wrote:
> So, I still think it would be better to remove the .align16, or
> alternatively to move it in front of ENTRY(lws_lock_start) [to be on the
> safe side].
>
> Am I really that wrong?

No, you are absolutely right. I forgot the locks are referenced via
lws_lock_start, and the symbol needs to be aligned. Sorry, I thought
there was another symbol elsewhere.

Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>

Cheers,
Carlos.
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> On Wed, Jul 9, 2008 at 3:50 PM, Helge Deller <deller@gmx.de> wrote:
> > So, I still think it would be better to remove the .align16, or
> > alternatively to move it in front of ENTRY(lws_lock_start) [to be on the
> > safe side].
> >
> > Am I really that wrong?
> 
> No, you are absolutely right. I forgot the locks are referenced via
> lws_lock_start, and the symbol needs to be aligned. Sorry, I thought
> there was another symbol elsewhere.

This would be clearer if there was an ENTRY_ALIGNED macro (e.g.,
ENTRY_ALIGNED(lws_lock_start, 16)).  It's probably overkill though.

Dave
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On Sun, Jul 06, 2008 at 01:45:52PM +0200, Rafael J. Wysocki wrote:
> 
> The following bug entry is on the current list of known regressions
> from 2.6.25.  Please verify if it still should be listed.

I am going to check it later. Last time I saw it was around 2.6.26-rc7/8.

Anyway the error message was not the same firstly reported there,
it could be another problem. More details will follow. Thank you.

> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=10786
> Subject		: parisc: 64bit SMP does not boot on J5600
> Submitter	: Domenico Andreoli <cavokz-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Date		: 2008-05-22 16:14 (46 days old)
> References	: http://marc.info/?l=linux-kernel&m=121147328028081&w=4

ciao,
Domenico

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] fix comment in Light-weight-syscall code
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The comment for the lws-atomic system call userspace helper 
function mentions r22 and r23 as input registers, but I couldn't 
find any usage of those registers in the code.
This patch fixes this and corrects another small typo as well.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 69b6eeb..ae45262 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -368,11 +368,11 @@ tracesys_sigexit:
 		Light-weight-syscall code
 
 		r20 - lws number
-		r26,r25,r24,r23,r22 - Input registers
+		r26,r25,r24 - Input registers
 		r28 - Function return register
 		r21 - Error code.
 
-		Scracth: Any of the above that aren't being
+		Scratch: Any of the above that aren't being
 		currently used, including r1. 
 
 		Return pointer: r31 (Not usable)

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On Thu, Jul 10, 2008 at 10:04:15PM +0200, Helge Deller wrote:
> The comment for the lws-atomic system call userspace helper 
> function mentions r22 and r23 as input registers, but I couldn't 
> find any usage of those registers in the code.
> This patch fixes this and corrects another small typo as well.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 

If Carlos thinks this is OK, it's OK by me.
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On Thu, Jul 10, 2008 at 4:04 PM, Helge Deller <deller@gmx.de> wrote:
> The comment for the lws-atomic system call userspace helper
> function mentions r22 and r23 as input registers, but I couldn't
> find any usage of those registers in the code.
> This patch fixes this and corrects another small typo as well.

That's the LWS syscall ABI. It has 5 argument registers, 1 return
register, 1 error code register, and 1 lws number register.

Cheers,
Carlos.
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On Fri, Jul 11, 2008 at 01:02:10PM -0400, Carlos O'Donell wrote:
> On Thu, Jul 10, 2008 at 4:04 PM, Helge Deller <deller@gmx.de> wrote:
> > The comment for the lws-atomic system call userspace helper
> > function mentions r22 and r23 as input registers, but I couldn't
> > find any usage of those registers in the code.
> > This patch fixes this and corrects another small typo as well.
> 
> That's the LWS syscall ABI. It has 5 argument registers, 1 return
> register, 1 error code register, and 1 lws number register.
> 

Yeah, but I think what Helge is asking is, if there's no plans to ever
add more, or more arguments, can he change it to be 3 args?

r, Kyle
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On Fri, Jul 11, 2008 at 2:33 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Fri, Jul 11, 2008 at 01:02:10PM -0400, Carlos O'Donell wrote:
>> On Thu, Jul 10, 2008 at 4:04 PM, Helge Deller <deller@gmx.de> wrote:
>> > The comment for the lws-atomic system call userspace helper
>> > function mentions r22 and r23 as input registers, but I couldn't
>> > find any usage of those registers in the code.
>> > This patch fixes this and corrects another small typo as well.
>>
>> That's the LWS syscall ABI. It has 5 argument registers, 1 return
>> register, 1 error code register, and 1 lws number register.
>>
>
> Yeah, but I think what Helge is asking is, if there's no plans to ever
> add more, or more arguments, can he change it to be 3 args?

No, I'm not OK with it, I think we should keep the extra two argument
registers for future use.

I've been talking to Helge about this. Once we lose those registers
they are gone from the ABI forever, and if we need some fixup, or an
additional arg in the future, it will be hard to handle.

Cheers,
Carlos.
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Subject: [PATCH] Document LWS ABI.
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Helge,

The LWS interface *already* has a 64-bit runtime entry point, see
arch/parisc/kernel/syscall.S:
~~~
        .align PAGE_SIZE
        /* Light-weight-syscall table */
        /* Start of lws table. */
ENTRY(lws_table)
        LWS_ENTRY(compare_and_swap32)   /* 0 - ELF32 Atomic compare and swap */
        LWS_ENTRY(compare_and_swap64)   /* 1 - ELF64 Atomic compare and swap */
END(lws_table)
        /* End of lws table */
~~~

The entry path unconditionally clips the LWS # to 32-bits.

On a 32-bit kernel, calling LWS entry #0 carries out the CAS on the
untouched 32-bit registers.
On a 32-bit kernel, calling LWS entry #1 returns ENOSYS.

On a 64-bit kernel, calling LWS entry #0 clips all register to 32-bits
and carries out the CAS.
On a 64-bit kernel, calling LWS entry #1 carries out the CAS on the
untouched 64-bit registers.

Patch attached.

John, could you comment on the ABI wrt the 64-bit runtime?

Helge, please review. I rolled in your fix for the superfluous .align
16. I would like your signed-off-by if you think the patch is good.

[PARISC] Document LWS ABI and LWS cleanups.

Document the LWS ABI including implementation notes for
userspace, and comment cleanup.

Remove extraneous .align 16 after lws_lock_start.

Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>

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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in
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On Tue, 15 Jul 2008 09:37:05 -0400 (EDT)
Mikulas Patocka <mpatocka@redhat.com> wrote:

> On Tue, 15 Jul 2008, FUJITA Tomonori wrote:
> 
> > blk_recalc_rq_segments assumes that any segments can be merged in the
> > case of BIOVEC_VIRT_MERGEABLE && !BIOVEC_VIRT_OVERSIZE. However, an
> > IOMMU can't merge segments if the total length of the segments is
> > larger than max_segment_size (the LLD restriction).
> >
> > Due to this bug, a LLD may get the larger number of segments than
> > nr_hw_segments because the block layer puts more segments in a request
> > than it should do.
> >
> > This bug could happen on alpha, parisc, and sparc, which use VMERGE.
> 
> Parisc doesn't use virtual merge accounting (there is variable for it but 
> it's always 0).

Hmm, really? Looks like PARISC IOMMUs (ccio-dma.c and sba_iomm.c) set
parisc_vmerge_boundary (CC'ed PARISC mailing list).


> On sparc64 it is broken anyway with or without your patch. 

Yeah, we need to modify SPARC64 IOMMU code (I'm not sure that it's
worth). Right now, the best fix is setting BIO_VMERGE_BOUNDARY to 0.


> And alpha alone doesn't justify substantial code bloat in generic block 
> layer. So I propose this patch to drop it at all.

Jens, what do you think about removing VMERGE code?
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in blk_recalc_rq_segments
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>>> This bug could happen on alpha, parisc, and sparc, which use VMERGE.
>>
>> Parisc doesn't use virtual merge accounting (there is variable for it but
>> it's always 0).
>
> Hmm, really? Looks like PARISC IOMMUs (ccio-dma.c and sba_iomm.c) set
> parisc_vmerge_boundary (CC'ed PARISC mailing list).

That's right, I looked only at arch and include.

>> On sparc64 it is broken anyway with or without your patch.
>
> Yeah, we need to modify SPARC64 IOMMU code (I'm not sure that it's
> worth). Right now, the best fix is setting BIO_VMERGE_BOUNDARY to 0.

Even if we fix it now, the question is: how long it will stay fixed? Until 
someone makes another change to struct device that restricts boundaries on 
some wacky hardware.

Mikulas

>> And alpha alone doesn't justify substantial code bloat in generic block
>> layer. So I propose this patch to drop it at all.
>
> Jens, what do you think about removing VMERGE code?
>
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On Tue, 2008-07-15 at 23:20 +0900, FUJITA Tomonori wrote:
> On Tue, 15 Jul 2008 09:37:05 -0400 (EDT)
> Mikulas Patocka <mpatocka@redhat.com> wrote:
> 
> > On Tue, 15 Jul 2008, FUJITA Tomonori wrote:
> > 
> > > blk_recalc_rq_segments assumes that any segments can be merged in the
> > > case of BIOVEC_VIRT_MERGEABLE && !BIOVEC_VIRT_OVERSIZE. However, an
> > > IOMMU can't merge segments if the total length of the segments is
> > > larger than max_segment_size (the LLD restriction).
> > >
> > > Due to this bug, a LLD may get the larger number of segments than
> > > nr_hw_segments because the block layer puts more segments in a request
> > > than it should do.
> > >
> > > This bug could happen on alpha, parisc, and sparc, which use VMERGE.
> > 
> > Parisc doesn't use virtual merge accounting (there is variable for it but 
> > it's always 0).
> 
> Hmm, really? Looks like PARISC IOMMUs (ccio-dma.c and sba_iomm.c) set
> parisc_vmerge_boundary (CC'ed PARISC mailing list).

That's correct.  The size and boundary depend on the type of IOMMU (ccio
or sba) so the vmerge boundary parameters are set up in the iommu driver
code.

> > On sparc64 it is broken anyway with or without your patch. 
> 
> Yeah, we need to modify SPARC64 IOMMU code (I'm not sure that it's
> worth). Right now, the best fix is setting BIO_VMERGE_BOUNDARY to 0.
> 
> 
> > And alpha alone doesn't justify substantial code bloat in generic block 
> > layer. So I propose this patch to drop it at all.
> 
> Jens, what do you think about removing VMERGE code?

Actually, it's code I did.

There are plusses and minusses to all of this.  The original vmerge code
was done for sparc ... mainly because the benefits of virtual merging
can offset the cost of having to use the iommu.  However, most
architectures didn't use it.  When I fixed it up to work for parisc (and
introduced the parameters) we were trying to demonstrate that using it
was feasible.

The idea behind vmerging is that assembling and programming sg lists is
expensive, so you want to do it once.  Either in the iommu or in the
driver sg list, but not in both.  There is evidence that it saves around
7% or so on drivers.  However, for architectures that can do it, better
savings are made simply by lifting the iommu out of the I/O path (so
called bypass mode).

I suspect with IOMMUs coming back (and being unable to be bypassed) with
virtualisation, virtual merging might once more become a significant
value.

James


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From - Thu Nov 08 21:02:31 2018
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in blk_recalc_rq_segments
 about VMERGE
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>>> On sparc64 it is broken anyway with or without your patch.
>>
>> Yeah, we need to modify SPARC64 IOMMU code (I'm not sure that it's
>> worth). Right now, the best fix is setting BIO_VMERGE_BOUNDARY to 0.
>>
>>
>>> And alpha alone doesn't justify substantial code bloat in generic block
>>> layer. So I propose this patch to drop it at all.
>>
>> Jens, what do you think about removing VMERGE code?
>
> Actually, it's code I did.
>
> There are plusses and minusses to all of this.  The original vmerge code
> was done for sparc ... mainly because the benefits of virtual merging
> can offset the cost of having to use the iommu.  However, most
> architectures didn't use it.  When I fixed it up to work for parisc (and
> introduced the parameters) we were trying to demonstrate that using it
> was feasible.
>
> The idea behind vmerging is that assembling and programming sg lists is
> expensive, so you want to do it once.  Either in the iommu or in the
> driver sg list, but not in both.  There is evidence that it saves around
> 7% or so on drivers.  However, for architectures that can do it, better
> savings are made simply by lifting the iommu out of the I/O path (so
> called bypass mode).

The problem is with vmerge accounting in block layer (that is what I'm 
proposing to remove), not with vmerge itself.

Vmerge accounting has advantages only if you have device with small amount 
of sg slots --- it allows the block layer to create request that has 
higher number of segments then the device.

If you have device with for example 1024 slots, the virtual merge 
accounting has no effect, because the any request will fit into that size. 
Even without virtual merge accounting, the virtual merging will happen, so 
there will be no performance penalty for the controller --- the controller 
will be programmed with exactly the same number of segments as if virtual 
merge accounting was present. (there could be even slight positive 
performance effect if you remove accounting, because you burn less CPU 
cycles per request)

If you have device will small number of sg slots (16 or so), vmerge 
accounting can improve performance by creating requests with more than 16 
segments --- the question is: is there any such device? And is the device 
performance-sensitive? (i.e. isn't it such an old hardware where no one 
cares about performance anyway?)

> I suspect with IOMMUs coming back (and being unable to be bypassed) with
> virtualisation, virtual merging might once more become a significant
> value.

I suppose that no one would manufacture new SCSI card with 16 or 32 sg 
slots these days, so the accounting of hardware segments has no effect on 
modern hardware.

Mikulas

> James
>
>
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in
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On Tue, 15 Jul 2008 10:37:58 -0400 (EDT)
Mikulas Patocka <mpatocka@redhat.com> wrote:

> >>> This bug could happen on alpha, parisc, and sparc, which use VMERGE.
> >>
> >> Parisc doesn't use virtual merge accounting (there is variable for it but
> >> it's always 0).
> >
> > Hmm, really? Looks like PARISC IOMMUs (ccio-dma.c and sba_iomm.c) set
> > parisc_vmerge_boundary (CC'ed PARISC mailing list).
> 
> That's right, I looked only at arch and include.
> 
> >> On sparc64 it is broken anyway with or without your patch.
> >
> > Yeah, we need to modify SPARC64 IOMMU code (I'm not sure that it's
> > worth). Right now, the best fix is setting BIO_VMERGE_BOUNDARY to 0.
> 
> Even if we fix it now, the question is: how long it will stay fixed? Until 
> someone makes another change to struct device that restricts boundaries on 
> some wacky hardware.

I'm not sure how the boundary restriction of a device can break
the VMERGE accounting.
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On Tue, 2008-07-15 at 11:24 -0400, Mikulas Patocka wrote:
> >>> On sparc64 it is broken anyway with or without your patch.
> >>
> >> Yeah, we need to modify SPARC64 IOMMU code (I'm not sure that it's
> >> worth). Right now, the best fix is setting BIO_VMERGE_BOUNDARY to 0.
> >>
> >>
> >>> And alpha alone doesn't justify substantial code bloat in generic block
> >>> layer. So I propose this patch to drop it at all.
> >>
> >> Jens, what do you think about removing VMERGE code?
> >
> > Actually, it's code I did.
> >
> > There are plusses and minusses to all of this.  The original vmerge code
> > was done for sparc ... mainly because the benefits of virtual merging
> > can offset the cost of having to use the iommu.  However, most
> > architectures didn't use it.  When I fixed it up to work for parisc (and
> > introduced the parameters) we were trying to demonstrate that using it
> > was feasible.
> >
> > The idea behind vmerging is that assembling and programming sg lists is
> > expensive, so you want to do it once.  Either in the iommu or in the
> > driver sg list, but not in both.  There is evidence that it saves around
> > 7% or so on drivers.  However, for architectures that can do it, better
> > savings are made simply by lifting the iommu out of the I/O path (so
> > called bypass mode).
> 
> The problem is with vmerge accounting in block layer (that is what I'm 
> proposing to remove), not with vmerge itself.

I don't think that's true ... otherwise parisc would be falling over
left right and centre.

> Vmerge accounting has advantages only if you have device with small amount 
> of sg slots --- it allows the block layer to create request that has 
> higher number of segments then the device.

This isn't really true either.  A lot of devices with a high sg slot
count are still less efficient than an iommu for programming.

Even if they're not, on parisc we have to program the iommu, we can't
bypass, so it still makes sense to only have one large sg list (in the
iommu) and one small one (in the device).  Having two large ones reduces
our I/O throughput because of the extra overhead.

> If you have device with for example 1024 slots, the virtual merge 
> accounting has no effect, because the any request will fit into that size. 

It's not about fitting a request, it's about efficient processing.

> Even without virtual merge accounting, the virtual merging will happen, so 
> there will be no performance penalty for the controller --- the controller 
> will be programmed with exactly the same number of segments as if virtual 
> merge accounting was present. (there could be even slight positive 
> performance effect if you remove accounting, because you burn less CPU 
> cycles per request)

Yes there is.  Both the iommu and the device have to traverse large SG
lists.  This is where the inefficiency lies.  On PA, we use exactly the
same number of iotlb slots whether virtual merging is in effect or not,
but the device has an internal loop to go over the list.  It's that loop
that virtual merging reduces.

Since the virtual merge computation is in line when the request is built
(by design) it doesn't really detract from the throughput and the cost
is pretty small.

> If you have device will small number of sg slots (16 or so), vmerge 
> accounting can improve performance by creating requests with more than 16 
> segments --- the question is: is there any such device? And is the device 
> performance-sensitive? (i.e. isn't it such an old hardware where no one 
> cares about performance anyway?)
> 
> > I suspect with IOMMUs coming back (and being unable to be bypassed) with
> > virtualisation, virtual merging might once more become a significant
> > value.
> 
> I suppose that no one would manufacture new SCSI card with 16 or 32 sg 
> slots these days, so the accounting of hardware segments has no effect on 
> modern hardware.

It's not about accounting, it's about performance.  There's a cost in
every device to traversing large count sg lists.  If you have to bear it
in the iommu (which is usually more efficient because the iotlb tends to
follow mmtlb optimisations) you can reduce the cost by eliminating it
from the device.

James


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>> Even if we fix it now, the question is: how long it will stay fixed? Until
>> someone makes another change to struct device that restricts boundaries on
>> some wacky hardware.
>
> I'm not sure how the boundary restriction of a device can break
> the VMERGE accounting.

Because block layer code doesn't know anything about the device, pci 
access restrictions and so on.

Someone already broken DaveM's Sparc64 merging by adding boundaries (it 
was broken even before, but these boundary checks made it worse).

Mikulas
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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in blk_recalc_rq_segments
 about VMERGE
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Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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You are mixing two ideas here:

(1) virtual merging --- IOMMU maps discontinuous segments into continuous 
area that it presents to the device.

(2) virtual merge accounting --- block layer tries to guess how many 
segments will be created by (1) and merges small requests into big ones. 
The resulting requests are as big that they can't be processed by the 
device if (1) weren't in effect.

>> The problem is with vmerge accounting in block layer (that is what I'm
>> proposing to remove), not with vmerge itself.
>
> I don't think that's true ... otherwise parisc would be falling over
> left right and centre.
>
>> Vmerge accounting has advantages only if you have device with small amount
>> of sg slots --- it allows the block layer to create request that has
>> higher number of segments then the device.
>
> This isn't really true either.  A lot of devices with a high sg slot
> count are still less efficient than an iommu for programming.

--- for these devices virtual merging (1) improves performance, but 
virtual merge accounting (2) doesn't.

> Even if they're not, on parisc we have to program the iommu, we can't
> bypass, so it still makes sense to only have one large sg list (in the
> iommu) and one small one (in the device).  Having two large ones reduces
> our I/O throughput because of the extra overhead.
>
>> If you have device with for example 1024 slots, the virtual merge
>> accounting has no effect, because the any request will fit into that size.
>
> It's not about fitting a request, it's about efficient processing.

Virtual merge accounting (2) is about fitting a request. It is block layer 
technique.

>> Even without virtual merge accounting, the virtual merging will happen, so
>> there will be no performance penalty for the controller --- the controller
>> will be programmed with exactly the same number of segments as if virtual
>> merge accounting was present. (there could be even slight positive
>> performance effect if you remove accounting, because you burn less CPU
>> cycles per request)
>
> Yes there is.  Both the iommu and the device have to traverse large SG
> lists.  This is where the inefficiency lies.  On PA, we use exactly the
> same number of iotlb slots whether virtual merging is in effect or not,
> but the device has an internal loop to go over the list.  It's that loop
> that virtual merging reduces.
>
> Since the virtual merge computation is in line when the request is built
> (by design) it doesn't really detract from the throughput and the cost
> is pretty small.

The purpose of (1) virtual merging is to save device's sg slots. The 
purpose of (2) virtual merge accounting is to allow block layer to build 
larger requests. If you remove virtual merge accounting, it will cause no 
increase in number of sg slots used.

>>> I suspect with IOMMUs coming back (and being unable to be bypassed) with
>>> virtualisation, virtual merging might once more become a significant
>>> value.
>>
>> I suppose that no one would manufacture new SCSI card with 16 or 32 sg
>> slots these days, so the accounting of hardware segments has no effect on
>> modern hardware.
>
> It's not about accounting, it's about performance.  There's a cost in
> every device to traversing large count sg lists.  If you have to bear it
> in the iommu (which is usually more efficient because the iotlb tends to
> follow mmtlb optimisations) you can reduce the cost by eliminating it
> from the device.

That's why I'm proposing to remove virtual merge accounting (2), but leave 
virtual merging (1) itself. The accounting doesn't reduce number of sg 
slots.

Mikulas

> James
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From - Thu Nov 08 21:02:31 2018
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in
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To: Mikulas Patocka <mpatocka@redhat.com>
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On Tue, 2008-07-15 at 11:58 -0400, Mikulas Patocka wrote:
> You are mixing two ideas here:
> 
> (1) virtual merging --- IOMMU maps discontinuous segments into continuous 
> area that it presents to the device.
> 
> (2) virtual merge accounting --- block layer tries to guess how many 
> segments will be created by (1) and merges small requests into big ones. 
> The resulting requests are as big that they can't be processed by the 
> device if (1) weren't in effect.

No ... I'm not ... the virtual merge implementation requires the block
layer to get this accounting right, otherwise the iommu code can end up
doing the wrong thing.

You're proposing to eliminate the difference between max_phys_segments
and max_hw_segments without actually removing them.

> >> The problem is with vmerge accounting in block layer (that is what I'm
> >> proposing to remove), not with vmerge itself.
> >
> > I don't think that's true ... otherwise parisc would be falling over
> > left right and centre.
> >
> >> Vmerge accounting has advantages only if you have device with small amount
> >> of sg slots --- it allows the block layer to create request that has
> >> higher number of segments then the device.
> >
> > This isn't really true either.  A lot of devices with a high sg slot
> > count are still less efficient than an iommu for programming.
> 
> --- for these devices virtual merging (1) improves performance, but 
> virtual merge accounting (2) doesn't.
> 
> > Even if they're not, on parisc we have to program the iommu, we can't
> > bypass, so it still makes sense to only have one large sg list (in the
> > iommu) and one small one (in the device).  Having two large ones reduces
> > our I/O throughput because of the extra overhead.
> >
> >> If you have device with for example 1024 slots, the virtual merge
> >> accounting has no effect, because the any request will fit into that size.
> >
> > It's not about fitting a request, it's about efficient processing.
> 
> Virtual merge accounting (2) is about fitting a request. It is block layer 
> technique.
> 
> >> Even without virtual merge accounting, the virtual merging will happen, so
> >> there will be no performance penalty for the controller --- the controller
> >> will be programmed with exactly the same number of segments as if virtual
> >> merge accounting was present. (there could be even slight positive
> >> performance effect if you remove accounting, because you burn less CPU
> >> cycles per request)
> >
> > Yes there is.  Both the iommu and the device have to traverse large SG
> > lists.  This is where the inefficiency lies.  On PA, we use exactly the
> > same number of iotlb slots whether virtual merging is in effect or not,
> > but the device has an internal loop to go over the list.  It's that loop
> > that virtual merging reduces.
> >
> > Since the virtual merge computation is in line when the request is built
> > (by design) it doesn't really detract from the throughput and the cost
> > is pretty small.
> 
> The purpose of (1) virtual merging is to save device's sg slots. The 
> purpose of (2) virtual merge accounting is to allow block layer to build 
> larger requests. If you remove virtual merge accounting, it will cause no 
> increase in number of sg slots used.
> 
> >>> I suspect with IOMMUs coming back (and being unable to be bypassed) with
> >>> virtualisation, virtual merging might once more become a significant
> >>> value.
> >>
> >> I suppose that no one would manufacture new SCSI card with 16 or 32 sg
> >> slots these days, so the accounting of hardware segments has no effect on
> >> modern hardware.
> >
> > It's not about accounting, it's about performance.  There's a cost in
> > every device to traversing large count sg lists.  If you have to bear it
> > in the iommu (which is usually more efficient because the iotlb tends to
> > follow mmtlb optimisations) you can reduce the cost by eliminating it
> > from the device.
> 
> That's why I'm proposing to remove virtual merge accounting (2), but leave 
> virtual merging (1) itself. The accounting doesn't reduce number of sg 
> slots.

Yes, but it's gains very little ... architectures that don't want it can
already turn it off, and it's useful for those, like parisc, who do.

James


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From - Thu Nov 08 21:02:31 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in blk_recalc_rq_segments
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On Tue, 15 Jul 2008, James Bottomley wrote:

> On Tue, 2008-07-15 at 11:58 -0400, Mikulas Patocka wrote:
>> You are mixing two ideas here:
>>
>> (1) virtual merging --- IOMMU maps discontinuous segments into continuous
>> area that it presents to the device.
>>
>> (2) virtual merge accounting --- block layer tries to guess how many
>> segments will be created by (1) and merges small requests into big ones.
>> The resulting requests are as big that they can't be processed by the
>> device if (1) weren't in effect.
>
> No ... I'm not ... the virtual merge implementation requires the block
> layer to get this accounting right, otherwise the iommu code can end up
> doing the wrong thing.

The virtual merge (1) can work even without accounting (2). IOMMU can 
always create less sg entries then the block layer expects.

> You're proposing to eliminate the difference between max_phys_segments
> and max_hw_segments without actually removing them.

Yes. Only for alpha and pa-risc, there is difference between these values. 
And both of these architectures are being discontinued.

>> That's why I'm proposing to remove virtual merge accounting (2), but leave
>> virtual merging (1) itself. The accounting doesn't reduce number of sg
>> slots.
>
> Yes, but it's gains very little ... architectures that don't want it can
> already turn it off, and it's useful for those, like parisc, who do.
>
> James

It increases maintainability of the code, reduces bloat and bugs.

Mikulas
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On Tue, 2008-07-15 at 12:20 -0400, Mikulas Patocka wrote:
> On Tue, 15 Jul 2008, James Bottomley wrote:
> 
> > On Tue, 2008-07-15 at 11:58 -0400, Mikulas Patocka wrote:
> >> You are mixing two ideas here:
> >>
> >> (1) virtual merging --- IOMMU maps discontinuous segments into continuous
> >> area that it presents to the device.
> >>
> >> (2) virtual merge accounting --- block layer tries to guess how many
> >> segments will be created by (1) and merges small requests into big ones.
> >> The resulting requests are as big that they can't be processed by the
> >> device if (1) weren't in effect.
> >
> > No ... I'm not ... the virtual merge implementation requires the block
> > layer to get this accounting right, otherwise the iommu code can end up
> > doing the wrong thing.
> 
> The virtual merge (1) can work even without accounting (2). IOMMU can 
> always create less sg entries then the block layer expects.

It can, but it's not optimal ... and depends on max_phys_segments ==
max_hw_segments.

> > You're proposing to eliminate the difference between max_phys_segments
> > and max_hw_segments without actually removing them.
> 
> Yes. Only for alpha and pa-risc, there is difference between these values. 
> And both of these architectures are being discontinued.
> 
> >> That's why I'm proposing to remove virtual merge accounting (2), but leave
> >> virtual merging (1) itself. The accounting doesn't reduce number of sg
> >> slots.
> >
> > Yes, but it's gains very little ... architectures that don't want it can
> > already turn it off, and it's useful for those, like parisc, who do.
> 
> It increases maintainability of the code, reduces bloat and bugs.

That's not really a good reason.  You can eliminate code because it's
unused and unikely to be used or you redo it to better or fix it to be
less buggy.  You don't simply eliminate useful functionality that
currently has in-tree users, however marginal you might opine those
users to be.

James


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From - Thu Nov 08 21:02:31 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] Document LWS ABI.
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Cc: Kyle McMartin <kyle@mcmartin.ca>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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Carlos O'Donell wrote:
> Helge,
> 
> The LWS interface *already* has a 64-bit runtime entry point, see
> arch/parisc/kernel/syscall.S:
> [....]

Sure. I thought the discussion was about adding a 64-bit runtime entry 
point which operates on a 64-bit pointer. But this can be done discussed 
when 64-bit userspace is coming...

> Helge, please review. I rolled in your fix for the superfluous .align
> 16. I would like your signed-off-by if you think the patch is good.
> 
> [PARISC] Document LWS ABI and LWS cleanups.
> 
> Document the LWS ABI including implementation notes for
> userspace, and comment cleanup.
> 
> Remove extraneous .align 16 after lws_lock_start.
> 
> Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>

Signed-off-by: Helge Deller <deller@gmx.de>

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On Tue, Jul 15, 2008 at 1:32 PM, Helge Deller <deller@gmx.de> wrote:
>> The LWS interface *already* has a 64-bit runtime entry point, see
>> arch/parisc/kernel/syscall.S:
>> [....]
>
> Sure. I thought the discussion was about adding a 64-bit runtime entry point
> which operates on a 64-bit pointer. But this can be done discussed when
> 64-bit userspace is coming...

The entry point is already there. It's LWS #1. Apparnetly I created it
with a 64-bit userspace in mind.

>> Helge, please review. I rolled in your fix for the superfluous .align
>> 16. I would like your signed-off-by if you think the patch is good.
>>
>> [PARISC] Document LWS ABI and LWS cleanups.
>>
>> Document the LWS ABI including implementation notes for
>> userspace, and comment cleanup.
>>
>> Remove extraneous .align 16 after lws_lock_start.
>>
>> Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
>
> Signed-off-by: Helge Deller <deller@gmx.de>

Thanks.

Kyle,

Please apply the patch and send it upstream?

Cheers,
Carlos.

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> > > Yes, but it's gains very little ... architectures that don't want it can
> > > already turn it off, and it's useful for those, like parisc, who do.
> > 
> > It increases maintainability of the code, reduces bloat and bugs.
> 
> That's not really a good reason.  You can eliminate code because it's
> unused and unikely to be used or you redo it to better or fix it to be
> less buggy.  You don't simply eliminate useful functionality that
> currently has in-tree users, however marginal you might opine those
> users to be.
> 
> James

So show a specific device where the virtual merge accounting is useful.

(1) The device that is often used in alpha or pa-risc environments --- 
because the accounting is not used on other archs.

(2) The device that is performance-sensitive --- not something outdated or 
unusual.

(3) And the device that has limited sg-list size, so that generic I/O 
requests made by the kernel hit this limit. (if the sg-list is so big that 
nr_phys_segments of most requests fits into it, you don't need to count 
nr_hw_segments --- because nr_hw_segments < nr_phys_segments and 
nr_phys_segments already fits).

[ the device that traverses its sg-list slowly doesn't fall into category 
(3), beacuse virtual merging would happen with or without nr_hw_segments 
accounting ]

Mikulas
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Subject: Re: [PATCH] Document LWS ABI.
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> >> The LWS interface *already* has a 64-bit runtime entry point, see
> >> arch/parisc/kernel/syscall.S:
> >> [....]
> >
> > Sure. I thought the discussion was about adding a 64-bit runtime entry point
> > which operates on a 64-bit pointer. But this can be done discussed when
> > 64-bit userspace is coming...
> 
> The entry point is already there. It's LWS #1. Apparnetly I created it
> with a 64-bit userspace in mind.

You didn't respond to the issue.

> Please apply the patch and send it upstream?

This ABI change is unjustified and I won't approve the Helge's GCC patch
with this change.  You will also have to change the glibc code to match.

Kyle indicated that he didn't want any major changes to the LWS interface,
so reserving several new registers is unnecessary.

Dave
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On Tue, 15 Jul 2008 11:46:46 -0400 (EDT)
Mikulas Patocka <mpatocka@redhat.com> wrote:

> >> Even if we fix it now, the question is: how long it will stay fixed? Until
> >> someone makes another change to struct device that restricts boundaries on
> >> some wacky hardware.
> >
> > I'm not sure how the boundary restriction of a device can break
> > the VMERGE accounting.
> 
> Because block layer code doesn't know anything about the device, pci 
> access restrictions and so on.

Not true, the block layer knows about the device restrictions like DMA
boundary.

But it's not the point here because the boundary restriction doesn't
matter for the VMERGE accounting. An IOMMU just returns an error if it
can't allocate an I/O space fit for the device restrictions.


Please give me an example how the boundary restriction of a device can
break the VMERGE accounting and an IOMMU if you aren't still sure.
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Subject: Re: [PATCH] Document LWS ABI.
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On Tue, Jul 15, 2008 at 8:15 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> > Sure. I thought the discussion was about adding a 64-bit runtime entry point
>> > which operates on a 64-bit pointer. But this can be done discussed when
>> > 64-bit userspace is coming...
>>
>> The entry point is already there. It's LWS #1. Apparnetly I created it
>> with a 64-bit userspace in mind.
>
> You didn't respond to the issue.

It doesn't work for the 64-bit runtime, I only used stw/ldw, and it
should be std/ldd. Which operation depends on the width of userspace,
so in all likelyhood I have to just duplicate the code. No real
problem there.

>> Please apply the patch and send it upstream?
>
> This ABI change is unjustified and I won't approve the Helge's GCC patch
> with this change.  You will also have to change the glibc code to match.
>
> Kyle indicated that he didn't want any major changes to the LWS interface,
> so reserving several new registers is unnecessary.

All I have done is clarify the intended interface. There has been no
actual change from what is already implemented. The glibc code already
matches this interface.

The question is "Are you OK with the existing ABI?" :-)

Cheers,
Carlos.
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From - Thu Nov 08 21:02:32 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [PATCH] Document LWS ABI.
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> The question is "Are you OK with the existing ABI?" :-)

No.  As I understand it, r2 doesn't need to be clobbered because
glibc doesn't currently clobber it.  So, using it in the LWS code
would cause an ABI break.  That's one register back to userspace.

I want to keep r19 and r27 for userspace so the PIC register doesn't
have to be saved and restored in the asm (linux-atomic.c is compiled
as PIC code).  You can have r29.

That leaves three free registers for the LWS code: r22, r23 and r29.
The LWS ABI has r1, r20-r26 and r28-r31.  Userspace has two call-clobbered
registers free across the asm in PIC code, and three in non-PIC code.
That's enough to efficiently perform the error comparisons.

The asm would be more efficient if the registers used for lws_mem,
lws_old and lws_new were not written to.  This occurs only for the
call in the 32-bit runtime with a 64-bit kernel.  As it stands,
the lws_mem, lws_old and lws_new arguments get reloaded every time
around the EAGAIN loop.  This is the crucial code in the compare
and swap:

        /* The load and store could fail */
1:      ldw     0(%sr3,%r26), %r28
	sub,<>  %r28, %r25, %r0
2:      stw     %r24, 0(%sr3,%r26)

The sub,<> instruction uses a 32-bit compare/subtract condition, so
the clipping of r25 isn't necessary.  Similarly, the stw instruction
ignores the most significant 32-bits of r24.  The value in r26 needs
clipping but you have three free registers, and it looks like r1 is
also free at this point in the code.  You can deposit the least
significant 32-bits of r26 into a field of zeros in another register
in one instruction.

It looks like lws_compare_and_swap64 and lws_compare_and_swap32 become
more or less functionally identical.  The above would become something
like:

#ifdef CONFIG_64BIT
	depd,z	%r26,63,32,%r1
1:      ldw     0(%sr3,%r1), %r28
        sub,<>  %r28, %r25, %r0
2:      stw     %r24, 0(%sr3,%r1)
#else
1:      ldw     0(%sr3,%r26), %r28
        sub,<>  %r28, %r25, %r0
2:      stw     %r24, 0(%sr3,%r26)
#endif

The argument clipping in the current code would be removed.  As a result,
the branch to lws_compare_and_swap can be eliminated in the 64-bit path.

It's my impression that the tightness of the loop for the compare/exchange
operation is important.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:02:32 2018
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in blk_recalc_rq_segments
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On Wed, 16 Jul 2008, FUJITA Tomonori wrote:

> On Tue, 15 Jul 2008 11:46:46 -0400 (EDT)
> Mikulas Patocka <mpatocka@redhat.com> wrote:
> 
> > >> Even if we fix it now, the question is: how long it will stay fixed? Until
> > >> someone makes another change to struct device that restricts boundaries on
> > >> some wacky hardware.
> > >
> > > I'm not sure how the boundary restriction of a device can break
> > > the VMERGE accounting.
> > 
> > Because block layer code doesn't know anything about the device, pci 
> > access restrictions and so on.
> 
> Not true, the block layer knows about the device restrictions like DMA
> boundary.
> 
> But it's not the point here because the boundary restriction doesn't
> matter for the VMERGE accounting. An IOMMU just returns an error if it
> can't allocate an I/O space fit for the device restrictions.
> 
> 
> Please give me an example how the boundary restriction of a device can
> break the VMERGE accounting and an IOMMU if you aren't still sure.

You have dma_get_seg_boundary and dma_get_max_seg_size. On sparc64, adding 
one of these broken VMERGE accounting (the VMERGE didn't happen past 64-kb 
boundary and bio layer thought that VMERGE would be possible).

And if you fix this case, someone will break it again, sooner or later, by 
adding new restriction.

Mikulas
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Subject: Re: 64bit kernel not booting with CONFIG_PRINTK_TIME=y
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On Wed, Jul 16, 2008 at 08:45:52PM +0200, Guy Martin wrote:
> 
> This is the output of my L2000 when trying to do so :
> 
> Information: No console specified on kernel command line. This is
> normal. PALO will choose the console currently used by firmware
> (serial). Command line for kernel: 'root=/dev/md1 console=ttyS0
> palo_kernel=2/vmlinux' Selected kernel: /vmlinux from partition 2
> ELF64 executable
> Entry 00100000 first 00100000 n 2
> Segment 0 load 00100000 size 4997120 mediaptr 0x1000
> Segment 1 load 00634000 size 640576 mediaptr 0x4c5000
> Branching to kernel entry point 0x00100000.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org
> 

Wrong mailing list. :)
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in
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On Wed, 16 Jul 2008 14:02:27 -0400 (EDT)
Mikulas Patocka <mpatocka@redhat.com> wrote:

> On Wed, 16 Jul 2008, FUJITA Tomonori wrote:
> 
> > On Tue, 15 Jul 2008 11:46:46 -0400 (EDT)
> > Mikulas Patocka <mpatocka@redhat.com> wrote:
> > 
> > > >> Even if we fix it now, the question is: how long it will stay fixed? Until
> > > >> someone makes another change to struct device that restricts boundaries on
> > > >> some wacky hardware.
> > > >
> > > > I'm not sure how the boundary restriction of a device can break
> > > > the VMERGE accounting.
> > > 
> > > Because block layer code doesn't know anything about the device, pci 
> > > access restrictions and so on.
> > 
> > Not true, the block layer knows about the device restrictions like DMA
> > boundary.
> > 
> > But it's not the point here because the boundary restriction doesn't
> > matter for the VMERGE accounting. An IOMMU just returns an error if it
> > can't allocate an I/O space fit for the device restrictions.
> > 
> > 
> > Please give me an example how the boundary restriction of a device can
> > break the VMERGE accounting and an IOMMU if you aren't still sure.
> 
> You have dma_get_seg_boundary and dma_get_max_seg_size. On sparc64, adding 
> one of these broken VMERGE accounting (the VMERGE didn't happen past 64-kb 
> boundary and bio layer thought that VMERGE would be possible).

If the device has 64KB boundary restriction, the device also has
max_seg_size restriction of 64KB or under. So the vmerge acounting
works (though we need to fix it to handle max_seg_size, as discussed).


> And if you fix this case, someone will break it again, sooner or later, by 
> adding new restriction.

What is your new restriction?

All restrictions that IOMMUs need to know are dma_get_seg_boundary and
dma_get_max_seg_size.
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From - Thu Nov 08 21:02:32 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in blk_recalc_rq_segments
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> > > Please give me an example how the boundary restriction of a device can
> > > break the VMERGE accounting and an IOMMU if you aren't still sure.
> > 
> > You have dma_get_seg_boundary and dma_get_max_seg_size. On sparc64, adding 
> > one of these broken VMERGE accounting (the VMERGE didn't happen past 64-kb 
> > boundary and bio layer thought that VMERGE would be possible).
> 
> If the device has 64KB boundary restriction, the device also has
> max_seg_size restriction of 64KB or under. So the vmerge acounting
> works (though we need to fix it to handle max_seg_size, as discussed).
> 
> > And if you fix this case, someone will break it again, sooner or later, by 
> > adding new restriction.
> 
> All restrictions that IOMMUs need to know are dma_get_seg_boundary and
> dma_get_max_seg_size.
> 
> What is your new restriction?

We don't know what happens in the future. And that is the problem that we 
don't know --- but we have two pieces of code (blk-merge and iommu) that 
try to calculate the same number (number of hw segments) and if they get 
different result, it will crash. If the calculations were done at one 
place, there would be no problem with that.

Mikulas
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From - Thu Nov 08 21:02:32 2018
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in
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On Thu, 17 Jul 2008 07:50:24 -0400 (EDT)
Mikulas Patocka <mpatocka@redhat.com> wrote:

> > > > Please give me an example how the boundary restriction of a device can
> > > > break the VMERGE accounting and an IOMMU if you aren't still sure.
> > > 
> > > You have dma_get_seg_boundary and dma_get_max_seg_size. On sparc64, adding 
> > > one of these broken VMERGE accounting (the VMERGE didn't happen past 64-kb 
> > > boundary and bio layer thought that VMERGE would be possible).
> > 
> > If the device has 64KB boundary restriction, the device also has
> > max_seg_size restriction of 64KB or under. So the vmerge acounting
> > works (though we need to fix it to handle max_seg_size, as discussed).
> > 
> > > And if you fix this case, someone will break it again, sooner or later, by 
> > > adding new restriction.
> > 
> > All restrictions that IOMMUs need to know are dma_get_seg_boundary and
> > dma_get_max_seg_size.
> > 
> > What is your new restriction?
> 
> We don't know what happens in the future.

It's very unlikely to add new restrictions.


> And that is the problem that we 
> don't know --- but we have two pieces of code (blk-merge and iommu) that 
> try to calculate the same number (number of hw segments) and if they get 
> different result, it will crash. If the calculations were done at one 
> place, there would be no problem with that.

I don't think that your argument, 'the problem that we don't know', is
true.

With the vmerge accounting, we calculate at two places. So if we add
a new restriction, we need to handle it at two places. It's a logical
result.

Of course, it's easier to calculate at one place rather than two
places. But 'we don't know what restriction we will need' isn't a
problem.


BTW, as I've already said, I'm not against removing the vmerge
accounting from the block layer.
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in blk_recalc_rq_segments
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FUJITA Tomonori wrote:
> On Thu, 17 Jul 2008 07:50:24 -0400 (EDT)
> Mikulas Patocka <mpatocka@redhat.com> wrote:
> 
>>>>> Please give me an example how the boundary restriction of a device can
>>>>> break the VMERGE accounting and an IOMMU if you aren't still sure.
>>>> You have dma_get_seg_boundary and dma_get_max_seg_size. On sparc64, adding 
>>>> one of these broken VMERGE accounting (the VMERGE didn't happen past 64-kb 
>>>> boundary and bio layer thought that VMERGE would be possible).
>>> If the device has 64KB boundary restriction, the device also has
>>> max_seg_size restriction of 64KB or under. So the vmerge acounting
>>> works (though we need to fix it to handle max_seg_size, as discussed).
>>>
>>>> And if you fix this case, someone will break it again, sooner or later, by 
>>>> adding new restriction.
>>> All restrictions that IOMMUs need to know are dma_get_seg_boundary and
>>> dma_get_max_seg_size.
>>>
>>> What is your new restriction?
>> We don't know what happens in the future.
> 
> It's very unlikely to add new restrictions.
> 
> 
>> And that is the problem that we 
>> don't know --- but we have two pieces of code (blk-merge and iommu) that 
>> try to calculate the same number (number of hw segments) and if they get 
>> different result, it will crash. If the calculations were done at one 
>> place, there would be no problem with that.
> 
> I don't think that your argument, 'the problem that we don't know', is
> true.
> 
> With the vmerge accounting, we calculate at two places. So if we add
> a new restriction, we need to handle it at two places. It's a logical
> result.
> 
> Of course, it's easier to calculate at one place rather than two
> places. But 'we don't know what restriction we will need' isn't a
> problem.
> 
> 
> BTW, as I've already said, I'm not against removing the vmerge
> accounting from the block layer.

I have a question. Does the block layer know of the IOMMU in use
for the device? can it call into the IOMMU to calculate the
restriction?

Thanks Boaz

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From - Thu Nov 08 21:02:33 2018
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in
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Date: Thu, 17 Jul 2008 08:56:39 -0500
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Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
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	linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
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To: Boaz Harrosh <bharrosh@panasas.com>
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On Thu, 2008-07-17 at 16:27 +0300, Boaz Harrosh wrote:
> FUJITA Tomonori wrote:
> > On Thu, 17 Jul 2008 07:50:24 -0400 (EDT)
> > Mikulas Patocka <mpatocka@redhat.com> wrote:
> > 
> >>>>> Please give me an example how the boundary restriction of a device can
> >>>>> break the VMERGE accounting and an IOMMU if you aren't still sure.
> >>>> You have dma_get_seg_boundary and dma_get_max_seg_size. On sparc64, adding 
> >>>> one of these broken VMERGE accounting (the VMERGE didn't happen past 64-kb 
> >>>> boundary and bio layer thought that VMERGE would be possible).
> >>> If the device has 64KB boundary restriction, the device also has
> >>> max_seg_size restriction of 64KB or under. So the vmerge acounting
> >>> works (though we need to fix it to handle max_seg_size, as discussed).
> >>>
> >>>> And if you fix this case, someone will break it again, sooner or later, by 
> >>>> adding new restriction.
> >>> All restrictions that IOMMUs need to know are dma_get_seg_boundary and
> >>> dma_get_max_seg_size.
> >>>
> >>> What is your new restriction?
> >> We don't know what happens in the future.
> > 
> > It's very unlikely to add new restrictions.
> > 
> > 
> >> And that is the problem that we 
> >> don't know --- but we have two pieces of code (blk-merge and iommu) that 
> >> try to calculate the same number (number of hw segments) and if they get 
> >> different result, it will crash. If the calculations were done at one 
> >> place, there would be no problem with that.
> > 
> > I don't think that your argument, 'the problem that we don't know', is
> > true.
> > 
> > With the vmerge accounting, we calculate at two places. So if we add
> > a new restriction, we need to handle it at two places. It's a logical
> > result.
> > 
> > Of course, it's easier to calculate at one place rather than two
> > places. But 'we don't know what restriction we will need' isn't a
> > problem.
> > 
> > 
> > BTW, as I've already said, I'm not against removing the vmerge
> > accounting from the block layer.
> 
> I have a question. Does the block layer know of the IOMMU in use
> for the device? can it call into the IOMMU to calculate the
> restriction?

Yes and no.  The parameter PCI_DMA_BUS_IS_PHYS is set if the platform
doesn't have one.  Nowadays, that's not enough; with VT and bypass what
the system really needs to know is if the device will be using the
iommu.

The idea of calling into the platform iommu code was considered when all
this was done, but it was rejected.  Function pointer calls are
incredibly expensive on most platforms that at that time had iommus.
The best way was to construct a theoretical parametrisation of an iommu
and get the block layer to follow that model.

James


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From - Thu Nov 08 21:02:33 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc
Subject: 64bit kernel not booting with CONFIG_PRINTK_TIME=y
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(Resending this to the correct mailing-list :)

Hi all,


I've been trying several times to boot a 64bit kernel with
CONFIG_PRINTK_TIME=y and each time it failed.

This is the output of my L2000 when trying to do so :

Information: No console specified on kernel command line. This is
normal. PALO will choose the console currently used by firmware
(serial). Command line for kernel: 'root=/dev/md1 console=ttyS0
palo_kernel=2/vmlinux' Selected kernel: /vmlinux from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 4997120 mediaptr 0x1000
Segment 1 load 00634000 size 640576 mediaptr 0x4c5000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org


************* SYSTEM ALERT **************
SYSTEM NAME: uninitialized
DATE: 07/16/2008 TIME: 17:47:39
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         OFF       ON         ON
LED State: Running non-OS code.  Non-critical error detected.
Check Chassis and Console Logs for error messages.

0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
0x5800087000FF6292 00006C06 10112F27 - type 11 = Timestamp 07/16/2008
17:47:39 A: ack read of this entry - X: Disable all future alert
messages Anything else skip redisplay the log entry
->Choice:Timeout!  
*****************************************



Recompiling with CONFIG_PRINTK_TIME=n makes it works straight away.

How can this be troubleshooted ? Any idea what the problem could be ?

I'm using gcc-4.2.4 with kernel 2.6.26 but I've have had very same
results with gcc-4.1.2 and 2.6.25.


Cheers,
  Guy


-- 
Guy Martin
Gentoo Linux - HPPA port lead
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From - Thu Nov 08 21:02:33 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: 64bit kernel not booting with CONFIG_PRINTK_TIME=y
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On Wed, Jul 16, 2008 at 02:56:27PM -0400, Kyle McMartin wrote:
> On Wed, Jul 16, 2008 at 08:45:52PM +0200, Guy Martin wrote:
> > 
> > This is the output of my L2000 when trying to do so :
> > 
> > Information: No console specified on kernel command line. This is
> > normal. PALO will choose the console currently used by firmware
> > (serial). Command line for kernel: 'root=/dev/md1 console=ttyS0
> > palo_kernel=2/vmlinux' Selected kernel: /vmlinux from partition 2
> > ELF64 executable
> > Entry 00100000 first 00100000 n 2
> > Segment 0 load 00100000 size 4997120 mediaptr 0x1000
> > Segment 1 load 00634000 size 640576 mediaptr 0x4c5000
> > Branching to kernel entry point 0x00100000.  If this is the last
> > message you see, you may need to switch your console.  This is
> > a common symptom -- search the FAQ and mailing list at parisc-linux.org
> > 
> 

How about if you boot with printk_time=0, whilst CONFIG_PRINTK_TIME=y?

r, Kyle
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From - Thu Nov 08 21:02:33 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [RFC] Patch for glibc getcontext()/makecontext()/setcontext()/swapcontext()
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I've tried to come up with a patch for glibc on hppa, which implements the *context() functions.

Main reason for me to write up those functions was e.g. this bug
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=459567
but I assume a few other bugs might be fixed then as well, if we get those functions integrated into glibc.

Below is now my first version.
Although it fixes the debian bug 459567 for me (after I rebuilt pth-2.0.7 and telling it to use the *context functions), I'm not sure if I missed anything else.

I'm sending it here on the parisc-devel list and would be happy to get feedback, before I plan to send it to the glibc devel list.

Current limitations:
- only integer parameters allowed (but that's usual on most arches)
- 32bit userspace implementation only
- do I need to save the FP regs?
- maybe more?

Any feedback is very much appreciated.
(Please be kind, my hppa assembler knowledge isn't that good)

Helge


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diff -up ports/sysdeps/unix/sysv/linux/hppa/Makefile.org ports/sysdeps/unix/sysv/linux/hppa/Makefile
--- ports/sysdeps/unix/sysv/linux/hppa/Makefile.org	2008-07-16 19:41:29.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/Makefile	2008-07-16 19:41:37.000000000 +0200
@@ -1,2 +1,7 @@
 # linux/hppa does not use -lmilli anymore
 gnulib := -lgcc
+
+ifeq ($(subdir),stdlib)
+gen-as-const-headers += ucontext_i.sym
+endif
+
diff -up ports/sysdeps/unix/sysv/linux/hppa/getcontext.S.org ports/sysdeps/unix/sysv/linux/hppa/getcontext.S
--- ports/sysdeps/unix/sysv/linux/hppa/getcontext.S.org	2008-07-16 19:52:11.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/getcontext.S	2008-07-18 23:34:32.000000000 +0200
@@ -0,0 +1,101 @@
+/* Get current user context.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Helge Deller <deller@gmx.de>, 2008.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+
+#include "ucontext_i.h"
+
+ENTRY(__getcontext)
+	/* Save the register.  */
+	stw	%r0, oR0(%r26)
+	stw	%r1, oR1(%r26)
+	stw	%r2, oR2(%r26)
+	stw	%r3, oR3(%r26)
+	stw	%r4, oR4(%r26)
+	stw	%r5, oR5(%r26)
+	stw	%r6, oR6(%r26)
+	stw	%r7, oR7(%r26)
+	stw	%r8, oR8(%r26)
+	stw	%r9, oR9(%r26)
+	stw	%r10, oR10(%r26)
+	stw	%r11, oR11(%r26)
+	stw	%r12, oR12(%r26)
+	stw	%r13, oR13(%r26)
+	stw	%r14, oR14(%r26)
+	stw	%r15, oR15(%r26)
+	stw	%r16, oR16(%r26)
+	stw	%r17, oR17(%r26)
+	stw	%r18, oR18(%r26)
+	stw	%r19, oR19(%r26)
+	stw	%r20, oR20(%r26)
+	stw	%r21, oR21(%r26)
+	stw	%r22, oR22(%r26)
+	stw	%r23, oR23(%r26)
+	stw	%r24, oR24(%r26)
+	stw	%r25, oR25(%r26)
+	stw	%r26, oR26(%r26)
+	stw	%r27, oR27(%r26)
+	stw	%r28, oR28(%r26)
+	stw	%r29, oR29(%r26)
+	ldo	-64(%sp), %r1	/* Calculate %sp in %r1.  */
+	stw	%r1, oR30(%r26)	/* Save new %sp.  */
+	stw	%r31, oR31(%r26)
+
+	stw	%r0, oUC_FLAGS(%r26)
+	stw	%r0, oUC_LINK(%r26)
+	stw	%r1, oSS_SP(%r26)  /* New %sp.  */
+	stw	%r0, oSS_FLAGS(%r26)
+	stw	%r0, oSS_SIZE(%r26)
+
+	stw	%r0, oSC_FLAGS(%r26)
+
+	stw	%r0, oIASQ0(%r26)
+	stw	%r0, oIASQ1(%r26)
+	stw	%r0, oIAOQ0(%r26)
+	stw	%r0, oIAOQ1(%r26)
+	stw	%r0, oSAR(%r26)
+
+	/* Store floating-point regs.  */
+	/* fstd	%fr0, oFP0(%r26)  */
+
+
+	/* Prologue */
+	stwm	%r4, 64(%r30)
+#ifdef PIC
+	stw	%r19, -32(%r30)
+#endif
+
+	/* Save the current signal mask.  */
+	/* sigprocmask(SIG_BLOCK, NULL, &ucp->uc_sigmask);  */
+	ldo	oSIGMASK(%r26), %r24
+	copy	%r0, %r25
+	bl	sigprocmask, %r2
+	ldi	SIG_BLOCK, %r26
+
+	/* Epilogue */
+	ldw	-84(%r30), %r2
+#ifdef PIC
+	ldw	-96(%r30), %r19
+#endif
+	bv	%r0(%r2)
+	ldwm	-64(%r30), %r4
+END(__getcontext)
+
+weak_alias (__getcontext, getcontext)
diff -up ports/sysdeps/unix/sysv/linux/hppa/makecontext.c.org ports/sysdeps/unix/sysv/linux/hppa/makecontext.c
--- ports/sysdeps/unix/sysv/linux/hppa/makecontext.c.org	2008-07-16 21:41:02.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/makecontext.c	2008-07-16 22:16:29.000000000 +0200
@@ -0,0 +1,79 @@
+/* Create new context.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Helge Deller <deller@gmx.de>, 2008.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <libintl.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sysdep.h>
+#include <ucontext.h>
+
+/* XXX: This implementation only handles integer arguments.  */
+
+void
+__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
+{
+  unsigned int *sp;
+  va_list ap;
+  int i;
+
+  if (argc > 8)
+    {
+      fprintf (stderr, _("\
+makecontext: does not know how to handle more than 8 arguments\n"));
+      exit (-1);
+    }
+
+  /* Generate room on stack for parameter if needed and uc_link.  */
+  sp = (unsigned int *) ucp->uc_stack.ss_sp;
+
+  /* Address to jump to.  */
+  ucp->uc_mcontext.sc_gr[2] = (unsigned long) func;
+
+  va_start (ap, argc);
+  /* Handle arguments.  */
+  for (i = 0; i < argc; ++i)
+    switch (i)
+      {
+      case 0:
+      case 1:
+      case 2:
+      case 3:
+      	ucp->uc_mcontext.sc_gr[26-i] = va_arg (ap, int);
+	break;
+      case 4:
+      case 5:
+      case 6:
+      case 7:
+	if (sizeof(unsigned long) == 4) {
+		/* 32bit: put arg7-arg4 on stack.  */
+		sp[7-i] = va_arg (ap, int);
+	} else {
+		/* 64bit: r19-r22 are arg7-arg4.  */
+		ucp->uc_mcontext.sc_gr[22+4-i] = va_arg (ap, int);
+	}
+	break;
+      }
+  va_end (ap);
+
+}
+
+
+weak_alias(__makecontext, makecontext)
diff -up ports/sysdeps/unix/sysv/linux/hppa/setcontext.S.org ports/sysdeps/unix/sysv/linux/hppa/setcontext.S
--- ports/sysdeps/unix/sysv/linux/hppa/setcontext.S.org	2008-07-16 22:29:10.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/setcontext.S	2008-07-18 23:34:23.000000000 +0200
@@ -0,0 +1,124 @@
+/* Install given context.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Helge Deller <deller@gmx.de>, 2008.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+
+#include "ucontext_i.h"
+
+
+ENTRY(__setcontext)
+	/* Prologue */
+	stwm	%r3, 64(%r30)
+#ifdef PIC
+	stw	%r19, -32(%r30)
+#endif
+
+	/* Save ucp.  */
+	copy	%r26, %r3
+
+L(_again):
+	/* Set the current signal mask.  */
+	/* sigprocmask(SIG_BLOCK, &ucp->uc_sigmask, NULL);  */
+	copy	%r0, %r24
+	ldo	oSIGMASK(%r3), %r25
+	bl	sigprocmask, %r2
+	ldi	SIG_SETMASK, %r26
+
+	comib,<> 0,%ret0,L(_error)
+	nop
+
+	/* Save %sp, %dp.  */
+	copy	%sp, %r4
+	copy	%dp, %r5
+	copy	%r19, %r6
+
+	/* Get the registers.  */
+	ldw	oR1(%r3), %r1
+	ldw	oR2(%r3), %r2
+	/* ldw	oR3(%r3), %r3 - used for ucp pointer.	*/
+	/* ldw	oR4(%r3), %r4 - used for original %sp.	*/
+	/* ldw	oR5(%r3), %r5 - used for %dp / %r27.	*/
+	/* ldw	oR6(%r3), %r6 - used for %r19.		*/
+	ldw	oR7(%r3), %r7
+	ldw	oR8(%r3), %r8
+	ldw	oR9(%r3), %r9
+	ldw	oR10(%r3), %r10
+	ldw	oR11(%r3), %r11
+	ldw	oR12(%r3), %r12
+	ldw	oR13(%r3), %r13
+	ldw	oR14(%r3), %r14
+	ldw	oR15(%r3), %r15
+	ldw	oR16(%r3), %r16
+	ldw	oR17(%r3), %r17
+	ldw	oR18(%r3), %r18
+	ldw	oR19(%r3), %r19
+	ldw	oR20(%r3), %r20
+	ldw	oR21(%r3), %r21
+	/* ldw	oR22(%r3), %r22 - dyncall arg.  */
+	ldw	oR23(%r3), %r23
+	ldw	oR24(%r3), %r24
+	ldw	oR25(%r3), %r25
+	ldw	oR26(%r3), %r26
+	ldw	oR27(%r3), %r27
+	ldw	oR28(%r3), %r28
+	ldw	oR29(%r3), %r29
+	ldw	oR30(%r3), %r30
+	ldw	oR31(%r3), %r31
+
+	/* Restore floating-point registers.  */
+	/* fldd	oFP0(%r3),%fr0  */
+
+
+	/* Calculate new stack pointer.  */
+	ldw	oSS_SP(%r3), %sp
+	ldo	64(%sp), %sp
+
+	/* Call function.  */
+	copy	%r2, %r22
+	bl	$$dyncall, %r31
+	copy	%r31, %r2
+
+	/* We return here. Get new ucp in %r3, reload %sp.  */
+	ldw	oUC_LINK(%r3), %r3
+	copy	%r4, %sp
+	copy	%r5, %dp
+	copy	%r6, %r19
+
+	/* If ucp == NULL then exit().  */
+	comib,<> 0,%r3,L(_again)
+	nop
+
+	/* If we looped through all uc_link contexts, exit now.  */
+	bl	_exit, %r2
+	ldi	-1, %r26
+	
+
+L(_error):
+	/* Epilogue */
+	ldw	-84(%r30), %r2
+#ifdef PIC
+	ldw	-96(%r30), %r19
+#endif
+	bv	%r0(%r2)
+	ldwm	-64(%r30), %r3
+L(pseudo_end):
+PSEUDO_END(__setcontext)
+
+weak_alias(__setcontext, setcontext)
diff -up ports/sysdeps/unix/sysv/linux/hppa/swapcontext.c.org ports/sysdeps/unix/sysv/linux/hppa/swapcontext.c
--- ports/sysdeps/unix/sysv/linux/hppa/swapcontext.c.org	2008-07-17 00:37:11.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/swapcontext.c	2008-07-18 23:07:15.000000000 +0200
@@ -0,0 +1,66 @@
+/* swap to new context.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Helge Deller <deller@gmx.de>, 2008.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <ucontext.h>
+
+extern int __getcontext (ucontext_t *ucp);
+extern int __setcontext (const ucontext_t *ucp);
+
+int
+__swapcontext (ucontext_t *oucp, const ucontext_t *ucp)
+{
+  extern void __swapcontext_ret (void);
+
+  /* Save the current machine context to oucp.  */
+  __getcontext (oucp);
+
+  /* uc_flags helps to skip the __setcontext call on reactivation.  */
+  if (++oucp->uc_flags == 1) {
+  	/* Temporarily save a few registers in r23-r26 which would be
+	 * overwritten by setcontext(). Set up the jump to __swapcontext_ret,
+	 * where the registers will be restored and then returned to the
+	 * above uc_flags == 1 test.  */
+  	oucp->uc_mcontext.sc_gr[20] = oucp->uc_mcontext.sc_gr[2];
+  	oucp->uc_mcontext.sc_gr[2] = (unsigned long) __swapcontext_ret;
+  	oucp->uc_mcontext.sc_gr[23] = oucp->uc_mcontext.sc_gr[3];
+  	oucp->uc_mcontext.sc_gr[24] = oucp->uc_mcontext.sc_gr[4];
+  	oucp->uc_mcontext.sc_gr[25] = oucp->uc_mcontext.sc_gr[5];
+  	oucp->uc_mcontext.sc_gr[26] = oucp->uc_mcontext.sc_gr[6];
+
+	/* Restore the machine context in ucp.  */
+  	__setcontext (ucp);
+  }
+  return 0;
+}
+
+asm ("							\n\
+	.text						\n\
+	.type	__swapcontext_ret, #function		\n\
+__swapcontext_ret:					\n\
+	copy	%r23, %r3				\n\
+	copy	%r24, %r4				\n\
+	copy	%r25, %r5				\n\
+	copy	%r26, %r6				\n\
+	bv	0(%r20)					\n\
+	copy	%r0, %ret0				\n\
+	.size	__swapcontext_ret, .-__swapcontext_ret	\n\
+     ");
+
+weak_alias (__swapcontext, swapcontext)
diff -up ports/sysdeps/unix/sysv/linux/hppa/ucontext_i.sym.org ports/sysdeps/unix/sysv/linux/hppa/ucontext_i.sym
--- ports/sysdeps/unix/sysv/linux/hppa/ucontext_i.sym.org	2008-07-16 19:27:46.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/ucontext_i.sym	2008-07-18 23:17:07.000000000 +0200
@@ -0,0 +1,90 @@
+#include <stddef.h>
+#include <signal.h>
+#include <sys/ucontext.h>
+
+--
+
+SIG_BLOCK
+SIG_SETMASK
+
+#define ucontext(member)	offsetof (ucontext_t, member)
+#define mcontext(member)	ucontext (uc_mcontext.member)
+#define mreg(reg)		mcontext (sc_gr[reg])
+
+oUC_FLAGS	ucontext (uc_flags)
+oUC_LINK	ucontext (uc_link)
+oSS_SP		ucontext (uc_stack.ss_sp)
+oSS_FLAGS	ucontext (uc_stack.ss_flags)
+oSS_SIZE	ucontext (uc_stack.ss_size)
+oSC_FLAGS	mcontext (sc_flags)
+oR0		mreg (0)
+oR1		mreg (1)
+oR2		mreg (2)
+oR3		mreg (3)
+oR4		mreg (4)
+oR5		mreg (5)
+oR6		mreg (6)
+oR7		mreg (7)
+oR8		mreg (8)
+oR9		mreg (9)
+oR10		mreg (10)
+oR11		mreg (11)
+oR12		mreg (12)
+oR13		mreg (13)
+oR14		mreg (14)
+oR15		mreg (15)
+oR16		mreg (16)
+oR17		mreg (17)
+oR18		mreg (18)
+oR19		mreg (19)
+oR20		mreg (20)
+oR21		mreg (21)
+oR22		mreg (22)
+oR23		mreg (23)
+oR24		mreg (24)
+oR25		mreg (25)
+oR26		mreg (26)
+oR27		mreg (27)
+oR28		mreg (28)
+oR29		mreg (29)
+oR30		mreg (30)
+oR31		mreg (31)
+oFPREGS		mcontext (sc_fr)
+oFP0		mcontext (sc_fr[0])
+oFP1		mcontext (sc_fr[1])
+oFP2		mcontext (sc_fr[2])
+oFP3		mcontext (sc_fr[3])
+oFP4		mcontext (sc_fr[4])
+oFP5		mcontext (sc_fr[5])
+oFP6		mcontext (sc_fr[6])
+oFP7		mcontext (sc_fr[7])
+oFP8		mcontext (sc_fr[8])
+oFP9		mcontext (sc_fr[9])
+oFP10		mcontext (sc_fr[10])
+oFP11		mcontext (sc_fr[11])
+oFP12		mcontext (sc_fr[12])
+oFP13		mcontext (sc_fr[13])
+oFP14		mcontext (sc_fr[14])
+oFP15		mcontext (sc_fr[15])
+oFP16		mcontext (sc_fr[16])
+oFP17		mcontext (sc_fr[17])
+oFP18		mcontext (sc_fr[18])
+oFP19		mcontext (sc_fr[19])
+oFP20		mcontext (sc_fr[20])
+oFP21		mcontext (sc_fr[21])
+oFP22		mcontext (sc_fr[22])
+oFP23		mcontext (sc_fr[23])
+oFP24		mcontext (sc_fr[24])
+oFP25		mcontext (sc_fr[25])
+oFP26		mcontext (sc_fr[26])
+oFP27		mcontext (sc_fr[27])
+oFP28		mcontext (sc_fr[28])
+oFP29		mcontext (sc_fr[29])
+oFP30		mcontext (sc_fr[30])
+oFP31		mcontext (sc_fr[31])
+oIASQ0		mcontext (sc_iasq[0])
+oIASQ1		mcontext (sc_iasq[1])
+oIAOQ0		mcontext (sc_iaoq[0])
+oIAOQ1		mcontext (sc_iaoq[1])
+oSAR		mcontext (sc_sar)
+oSIGMASK	ucontext (uc_sigmask)

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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Thu, 17 Jul 2008 22:18:44 +0900

> BTW, as I've already said, I'm not against removing the vmerge
> accounting from the block layer.

I am also, as stated, not against this.

Fujita-san, please proposage a patch so that we can put this
issue behind us :-)
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From - Thu Nov 08 21:02:33 2018
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Subject: [PATCH] ccio_clear_io_tlb() don't need to compute io page number
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Hello Kyle,

In ccio-dma.c, I noticed that eventhought the prototype of the function ccio_clear_io_tlb() is:
static CCIO_INLINE void
ccio_clear_io_tlb(struct ioc *ioc, dma_addr_t iovp, size_t byte_cnt)

i.e. the second arg being iovp (afaik the io virtual page number) deduced from the iova (io virtual address)

it's so useless to:
         iovp &= IOVP_MASK;      /* clear offset bits, just want pagenum */

and the only place where it's called is:
         ccio_clear_io_tlb(ioc, CCIO_IOVP(iova), saved_byte_cnt);

it's well an iovp given the macro definition:
#define CCIO_IOVP(iova) ((iova) & IOVP_MASK)

May I so suggest following patch:
--- a/drivers/parisc/ccio-dma.c	2008-07-19 21:17:37.000000000 +0000
+++ b/drivers/parisc/ccio-dma.c	2008-07-19 21:32:54.000000000 +0000
@@ -643,7 +643,6 @@
  {
  	u32 chain_size = 1 << ioc->chainid_shift;

-	iovp &= IOVP_MASK;	/* clear offset bits, just want pagenum */
  	byte_cnt += chain_size;

  	while(byte_cnt > chain_size) {
=== <> ===

Tia,
	J.
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From - Thu Nov 08 21:02:33 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: 64bit kernel not booting with CONFIG_PRINTK_TIME=y
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On Thu, Jul 17, 2008 at 07:05:02PM +0200, Guy Martin wrote:
> 
> Recompiling with CONFIG_PRINTK_TIME=n makes it works straight away.
>

The problem is kernel/printk.c around line 731.

t = jiffies * (NSEC_PER_SEC / HZ);
do_div(t, 10000000000); is doing some badness (which is hard as hell to
debug since printk isn't working.)

It's doing some sort of bollocks when jiffies is between 9 and 10...

do_div being:

# define do_div(n,base) ({                                      \
        uint32_t __base = (base);                               \
        uint32_t __rem;                                         \
        __rem = ((uint64_t)(n)) % __base;                       \
        (n) = ((uint64_t)(n)) / __base;                         \
        __rem;                                                  \
 })

I'm *guessing* that umoddi3 or udivdi3 is doing an xmpyu or something,
which since this is probably before fpu init, is trapping, which is
trying to printk, which is recursively exploding.

regards, Kyle
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From - Thu Nov 08 21:02:33 2018
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On Sat, Jul 19, 2008 at 05:54:59PM -0400, Kyle McMartin wrote:
> I'm *guessing* that umoddi3 or udivdi3 is doing an xmpyu or something,
> which since this is probably before fpu init, is trapping, which is
> trying to printk, which is recursively exploding.
> 

If my guess is right, this quick fix might work. Can you please test it,
as my a500 decided to have its scsi controller die in the middle of
this...

(Proper fix is probably to bring fpu bringup into head.S, since it will
 be necessary for any printk with CONFIG_PRINTK_TIME on. (Or bring back
 my use embedded libgcc patch, which was buggy on 32-bit. :\ ))

diff --git a/init/main.c b/init/main.c
index edeace0..729b150 100644
--- a/init/main.c
+++ b/init/main.c
@@ -560,9 +560,9 @@ asmlinkage void __init start_kernel(void)
 	tick_init();
 	boot_cpu_init();
 	page_address_init();
+	setup_arch(&command_line);
 	printk(KERN_NOTICE);
 	printk(linux_banner);
-	setup_arch(&command_line);
 	mm_init_owner(&init_mm, &init_task);
 	setup_command_line(command_line);
 	unwind_setup();

From - Thu Nov 08 21:02:33 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.scsi
Subject: Re: [PATCH] block: fix q->max_segment_size checking in blk_recalc_rq_segments
 about VMERGE
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On Sat, 19 Jul 2008, David Miller wrote:

> From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> Date: Thu, 17 Jul 2008 22:18:44 +0900
> 
> > BTW, as I've already said, I'm not against removing the vmerge
> > accounting from the block layer.
> 
> I am also, as stated, not against this.
> 
> Fujita-san, please proposage a patch so that we can put this
> issue behind us :-)

Few days ago I created this.

Another task would be to remove nr_hw_segments from request, bio and queue 
parameters (if this patch is accepted).

Mikulas

---
 arch/parisc/kernel/setup.c |    5 ---
 arch/x86/kernel/pci-dma.c  |    6 ---
 block/blk-merge.c          |   72 +++------------------------------------------
 drivers/parisc/ccio-dma.c  |    2 -
 drivers/parisc/sba_iommu.c |    2 -
 fs/bio.c                   |    6 +--
 include/asm-alpha/io.h     |    3 -
 include/asm-ia64/io.h      |   26 +---------------
 include/asm-parisc/io.h    |    6 ---
 include/asm-powerpc/io.h   |    7 ----
 include/asm-sparc64/io.h   |    1 
 include/asm-x86/io_64.h    |    3 -
 include/linux/bio.h        |   15 ---------
 13 files changed, 10 insertions(+), 144 deletions(-)

Index: linux-2.6.26-fast/arch/parisc/kernel/setup.c
===================================================================
--- linux-2.6.26-fast.orig/arch/parisc/kernel/setup.c	2008-07-15 16:19:53.000000000 +0200
+++ linux-2.6.26-fast/arch/parisc/kernel/setup.c	2008-07-15 16:20:15.000000000 +0200
@@ -57,11 +57,6 @@ int parisc_bus_is_phys __read_mostly = 1
 EXPORT_SYMBOL(parisc_bus_is_phys);
 #endif
 
-/* This sets the vmerge boundary and size, it's here because it has to
- * be available on all platforms (zero means no-virtual merging) */
-unsigned long parisc_vmerge_boundary = 0;
-unsigned long parisc_vmerge_max_size = 0;
-
 void __init setup_cmdline(char **cmdline_p)
 {
 	extern unsigned int boot_args[];
Index: linux-2.6.26-fast/arch/x86/kernel/pci-dma.c
===================================================================
--- linux-2.6.26-fast.orig/arch/x86/kernel/pci-dma.c	2008-07-15 16:19:53.000000000 +0200
+++ linux-2.6.26-fast/arch/x86/kernel/pci-dma.c	2008-07-15 16:20:15.000000000 +0200
@@ -30,11 +30,6 @@ int no_iommu __read_mostly;
 /* Set this to 1 if there is a HW IOMMU in the system */
 int iommu_detected __read_mostly = 0;
 
-/* This tells the BIO block layer to assume merging. Default to off
-   because we cannot guarantee merging later. */
-int iommu_bio_merge __read_mostly = 0;
-EXPORT_SYMBOL(iommu_bio_merge);
-
 dma_addr_t bad_dma_address __read_mostly = 0;
 EXPORT_SYMBOL(bad_dma_address);
 
@@ -151,7 +146,6 @@ static __init int iommu_setup(char *p)
 		}
 
 		if (!strncmp(p, "biomerge", 8)) {
-			iommu_bio_merge = 4096;
 			iommu_merge = 1;
 			force_iommu = 1;
 		}
Index: linux-2.6.26-fast/block/blk-merge.c
===================================================================
--- linux-2.6.26-fast.orig/block/blk-merge.c	2008-07-15 16:19:53.000000000 +0200
+++ linux-2.6.26-fast/block/blk-merge.c	2008-07-15 16:20:15.000000000 +0200
@@ -66,7 +66,7 @@ void blk_recalc_rq_segments(struct reque
 		 */
 		high = page_to_pfn(bv->bv_page) > q->bounce_pfn;
 		if (high || highprv)
-			goto new_hw_segment;
+			goto new_segment;
 		if (cluster) {
 			if (seg_size + bv->bv_len > q->max_segment_size)
 				goto new_segment;
@@ -74,8 +74,6 @@ void blk_recalc_rq_segments(struct reque
 				goto new_segment;
 			if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bv))
 				goto new_segment;
-			if (BIOVEC_VIRT_OVERSIZE(hw_seg_size + bv->bv_len))
-				goto new_hw_segment;
 
 			seg_size += bv->bv_len;
 			hw_seg_size += bv->bv_len;
@@ -83,17 +81,11 @@ void blk_recalc_rq_segments(struct reque
 			continue;
 		}
 new_segment:
-		if (BIOVEC_VIRT_MERGEABLE(bvprv, bv) &&
-		    !BIOVEC_VIRT_OVERSIZE(hw_seg_size + bv->bv_len))
-			hw_seg_size += bv->bv_len;
-		else {
-new_hw_segment:
-			if (nr_hw_segs == 1 &&
-			    hw_seg_size > rq->bio->bi_hw_front_size)
-				rq->bio->bi_hw_front_size = hw_seg_size;
-			hw_seg_size = BIOVEC_VIRT_START_SIZE(bv) + bv->bv_len;
-			nr_hw_segs++;
-		}
+		if (nr_hw_segs == 1 &&
+		    hw_seg_size > rq->bio->bi_hw_front_size)
+			rq->bio->bi_hw_front_size = hw_seg_size;
+		hw_seg_size = bv->bv_len;
+		nr_hw_segs++;
 
 		nr_phys_segs++;
 		bvprv = bv;
@@ -146,22 +138,6 @@ static int blk_phys_contig_segment(struc
 	return 0;
 }
 
-static int blk_hw_contig_segment(struct request_queue *q, struct bio *bio,
-				 struct bio *nxt)
-{
-	if (!bio_flagged(bio, BIO_SEG_VALID))
-		blk_recount_segments(q, bio);
-	if (!bio_flagged(nxt, BIO_SEG_VALID))
-		blk_recount_segments(q, nxt);
-	if (!BIOVEC_VIRT_MERGEABLE(__BVEC_END(bio), __BVEC_START(nxt)) ||
-	    BIOVEC_VIRT_OVERSIZE(bio->bi_hw_back_size + nxt->bi_hw_front_size))
-		return 0;
-	if (bio->bi_hw_back_size + nxt->bi_hw_front_size > q->max_segment_size)
-		return 0;
-
-	return 1;
-}
-
 /*
  * map a request to scatterlist, return number of sg entries setup. Caller
  * must make sure sg can hold rq->nr_phys_segments entries
@@ -317,18 +293,6 @@ int ll_back_merge_fn(struct request_queu
 	if (!bio_flagged(bio, BIO_SEG_VALID))
 		blk_recount_segments(q, bio);
 	len = req->biotail->bi_hw_back_size + bio->bi_hw_front_size;
-	if (BIOVEC_VIRT_MERGEABLE(__BVEC_END(req->biotail), __BVEC_START(bio))
-	    && !BIOVEC_VIRT_OVERSIZE(len)) {
-		int mergeable =  ll_new_mergeable(q, req, bio);
-
-		if (mergeable) {
-			if (req->nr_hw_segments == 1)
-				req->bio->bi_hw_front_size = len;
-			if (bio->bi_hw_segments == 1)
-				bio->bi_hw_back_size = len;
-		}
-		return mergeable;
-	}
 
 	return ll_new_hw_segment(q, req, bio);
 }
@@ -356,18 +320,6 @@ int ll_front_merge_fn(struct request_que
 		blk_recount_segments(q, bio);
 	if (!bio_flagged(req->bio, BIO_SEG_VALID))
 		blk_recount_segments(q, req->bio);
-	if (BIOVEC_VIRT_MERGEABLE(__BVEC_END(bio), __BVEC_START(req->bio)) &&
-	    !BIOVEC_VIRT_OVERSIZE(len)) {
-		int mergeable =  ll_new_mergeable(q, req, bio);
-
-		if (mergeable) {
-			if (bio->bi_hw_segments == 1)
-				bio->bi_hw_front_size = len;
-			if (req->nr_hw_segments == 1)
-				req->biotail->bi_hw_back_size = len;
-		}
-		return mergeable;
-	}
 
 	return ll_new_hw_segment(q, req, bio);
 }
@@ -399,18 +351,6 @@ static int ll_merge_requests_fn(struct r
 		return 0;
 
 	total_hw_segments = req->nr_hw_segments + next->nr_hw_segments;
-	if (blk_hw_contig_segment(q, req->biotail, next->bio)) {
-		int len = req->biotail->bi_hw_back_size +
-				next->bio->bi_hw_front_size;
-		/*
-		 * propagate the combined length to the end of the requests
-		 */
-		if (req->nr_hw_segments == 1)
-			req->bio->bi_hw_front_size = len;
-		if (next->nr_hw_segments == 1)
-			next->biotail->bi_hw_back_size = len;
-		total_hw_segments--;
-	}
 
 	if (total_hw_segments > q->max_hw_segments)
 		return 0;
Index: linux-2.6.26-fast/include/asm-alpha/io.h
===================================================================
--- linux-2.6.26-fast.orig/include/asm-alpha/io.h	2008-07-15 16:19:52.000000000 +0200
+++ linux-2.6.26-fast/include/asm-alpha/io.h	2008-07-15 16:20:15.000000000 +0200
@@ -96,9 +96,6 @@ static inline dma_addr_t __deprecated is
 	return page_to_phys(page);
 }
 
-/* This depends on working iommu.  */
-#define BIO_VMERGE_BOUNDARY	(alpha_mv.mv_pci_tbi ? PAGE_SIZE : 0)
-
 /* Maximum PIO space address supported?  */
 #define IO_SPACE_LIMIT 0xffff
 
Index: linux-2.6.26-fast/include/asm-ia64/io.h
===================================================================
--- linux-2.6.26-fast.orig/include/asm-ia64/io.h	2008-07-15 16:19:52.000000000 +0200
+++ linux-2.6.26-fast/include/asm-ia64/io.h	2008-07-15 16:20:15.000000000 +0200
@@ -430,30 +430,8 @@ extern void memcpy_fromio(void *dst, con
 extern void memcpy_toio(volatile void __iomem *dst, const void *src, long n);
 extern void memset_io(volatile void __iomem *s, int c, long n);
 
-# endif /* __KERNEL__ */
-
-/*
- * Enabling BIO_VMERGE_BOUNDARY forces us to turn off I/O MMU bypassing.  It is said that
- * BIO-level virtual merging can give up to 4% performance boost (not verified for ia64).
- * On the other hand, we know that I/O MMU bypassing gives ~8% performance improvement on
- * SPECweb-like workloads on zx1-based machines.  Thus, for now we favor I/O MMU bypassing
- * over BIO-level virtual merging.
- */
 extern unsigned long ia64_max_iommu_merge_mask;
-#if 1
-#define BIO_VMERGE_BOUNDARY	0
-#else
-/*
- * It makes no sense at all to have this BIO_VMERGE_BOUNDARY macro here.  Should be
- * replaced by dma_merge_mask() or something of that sort.  Note: the only way
- * BIO_VMERGE_BOUNDARY is used is to mask off bits.  Effectively, our definition gets
- * expanded into:
- *
- *	addr & ((ia64_max_iommu_merge_mask + 1) - 1) == (addr & ia64_max_iommu_vmerge_mask)
- *
- * which is precisely what we want.
- */
-#define BIO_VMERGE_BOUNDARY	(ia64_max_iommu_merge_mask + 1)
-#endif
+
+# endif /* __KERNEL__ */
 
 #endif /* _ASM_IA64_IO_H */
Index: linux-2.6.26-fast/include/asm-parisc/io.h
===================================================================
--- linux-2.6.26-fast.orig/include/asm-parisc/io.h	2008-07-15 16:19:53.000000000 +0200
+++ linux-2.6.26-fast/include/asm-parisc/io.h	2008-07-15 16:20:15.000000000 +0200
@@ -4,12 +4,6 @@
 #include <linux/types.h>
 #include <asm/pgtable.h>
 
-extern unsigned long parisc_vmerge_boundary;
-extern unsigned long parisc_vmerge_max_size;
-
-#define BIO_VMERGE_BOUNDARY	parisc_vmerge_boundary
-#define BIO_VMERGE_MAX_SIZE	parisc_vmerge_max_size
-
 #define virt_to_phys(a) ((unsigned long)__pa(a))
 #define phys_to_virt(a) __va(a)
 #define virt_to_bus virt_to_phys
Index: linux-2.6.26-fast/include/asm-powerpc/io.h
===================================================================
--- linux-2.6.26-fast.orig/include/asm-powerpc/io.h	2008-07-15 16:19:53.000000000 +0200
+++ linux-2.6.26-fast/include/asm-powerpc/io.h	2008-07-15 16:20:15.000000000 +0200
@@ -683,13 +683,6 @@ static inline void * phys_to_virt(unsign
  */
 #define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
 
-/* We do NOT want virtual merging, it would put too much pressure on
- * our iommu allocator. Instead, we want drivers to be smart enough
- * to coalesce sglists that happen to have been mapped in a contiguous
- * way by the iommu
- */
-#define BIO_VMERGE_BOUNDARY	0
-
 /*
  * 32 bits still uses virt_to_bus() for it's implementation of DMA
  * mappings se we have to keep it defined here. We also have some old
Index: linux-2.6.26-fast/include/asm-sparc64/io.h
===================================================================
--- linux-2.6.26-fast.orig/include/asm-sparc64/io.h	2008-07-15 16:19:53.000000000 +0200
+++ linux-2.6.26-fast/include/asm-sparc64/io.h	2008-07-15 16:20:15.000000000 +0200
@@ -16,7 +16,6 @@
 /* BIO layer definitions. */
 extern unsigned long kern_base, kern_size;
 #define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
-#define BIO_VMERGE_BOUNDARY	8192
 
 static inline u8 _inb(unsigned long addr)
 {
Index: linux-2.6.26-fast/include/asm-x86/io_64.h
===================================================================
--- linux-2.6.26-fast.orig/include/asm-x86/io_64.h	2008-07-15 16:19:53.000000000 +0200
+++ linux-2.6.26-fast/include/asm-x86/io_64.h	2008-07-15 16:20:15.000000000 +0200
@@ -304,9 +304,6 @@ void memset_io(volatile void __iomem *a,
 
 #define flush_write_buffers()
 
-extern int iommu_bio_merge;
-#define BIO_VMERGE_BOUNDARY iommu_bio_merge
-
 /*
  * Convert a virtual cached pointer to an uncached pointer
  */
Index: linux-2.6.26-fast/include/linux/bio.h
===================================================================
--- linux-2.6.26-fast.orig/include/linux/bio.h	2008-07-15 16:19:53.000000000 +0200
+++ linux-2.6.26-fast/include/linux/bio.h	2008-07-15 16:20:15.000000000 +0200
@@ -26,21 +26,8 @@
 
 #ifdef CONFIG_BLOCK
 
-/* Platforms may set this to teach the BIO layer about IOMMU hardware. */
 #include <asm/io.h>
 
-#if defined(BIO_VMERGE_MAX_SIZE) && defined(BIO_VMERGE_BOUNDARY)
-#define BIOVEC_VIRT_START_SIZE(x) (bvec_to_phys(x) & (BIO_VMERGE_BOUNDARY - 1))
-#define BIOVEC_VIRT_OVERSIZE(x)	((x) > BIO_VMERGE_MAX_SIZE)
-#else
-#define BIOVEC_VIRT_START_SIZE(x)	0
-#define BIOVEC_VIRT_OVERSIZE(x)		0
-#endif
-
-#ifndef BIO_VMERGE_BOUNDARY
-#define BIO_VMERGE_BOUNDARY	0
-#endif
-
 #define BIO_DEBUG
 
 #ifdef BIO_DEBUG
@@ -235,8 +222,6 @@ static inline void *bio_data(struct bio 
 	((bvec_to_phys((vec1)) + (vec1)->bv_len) == bvec_to_phys((vec2)))
 #endif
 
-#define BIOVEC_VIRT_MERGEABLE(vec1, vec2)	\
-	((((bvec_to_phys((vec1)) + (vec1)->bv_len) | bvec_to_phys((vec2))) & (BIO_VMERGE_BOUNDARY - 1)) == 0)
 #define __BIO_SEG_BOUNDARY(addr1, addr2, mask) \
 	(((addr1) | (mask)) == (((addr2) - 1) | (mask)))
 #define BIOVEC_SEG_BOUNDARY(q, b1, b2) \
Index: linux-2.6.26-fast/fs/bio.c
===================================================================
--- linux-2.6.26-fast.orig/fs/bio.c	2008-07-15 16:19:53.000000000 +0200
+++ linux-2.6.26-fast/fs/bio.c	2008-07-15 16:20:15.000000000 +0200
@@ -352,8 +352,7 @@ static int __bio_add_page(struct request
 	 */
 
 	while (bio->bi_phys_segments >= q->max_phys_segments
-	       || bio->bi_hw_segments >= q->max_hw_segments
-	       || BIOVEC_VIRT_OVERSIZE(bio->bi_size)) {
+	       || bio->bi_hw_segments >= q->max_hw_segments) {
 
 		if (retried_segments)
 			return 0;
@@ -390,8 +389,7 @@ static int __bio_add_page(struct request
 	}
 
 	/* If we may be able to merge these biovecs, force a recount */
-	if (bio->bi_vcnt && (BIOVEC_PHYS_MERGEABLE(bvec-1, bvec) ||
-	    BIOVEC_VIRT_MERGEABLE(bvec-1, bvec)))
+	if (bio->bi_vcnt && (BIOVEC_PHYS_MERGEABLE(bvec-1, bvec)))
 		bio->bi_flags &= ~(1 << BIO_SEG_VALID);
 
 	bio->bi_vcnt++;
Index: linux-2.6.26-fast/drivers/parisc/ccio-dma.c
===================================================================
--- linux-2.6.26-fast.orig/drivers/parisc/ccio-dma.c	2008-07-15 16:29:31.000000000 +0200
+++ linux-2.6.26-fast/drivers/parisc/ccio-dma.c	2008-07-15 16:34:23.000000000 +0200
@@ -1587,8 +1587,6 @@ static int __init ccio_probe(struct pari
 
 	ioc_count++;
 
-	parisc_vmerge_boundary = IOVP_SIZE;
-	parisc_vmerge_max_size = BITS_PER_LONG * IOVP_SIZE;
 	parisc_has_iommu();
 	return 0;
 }
Index: linux-2.6.26-fast/drivers/parisc/sba_iommu.c
===================================================================
--- linux-2.6.26-fast.orig/drivers/parisc/sba_iommu.c	2008-07-15 16:29:31.000000000 +0200
+++ linux-2.6.26-fast/drivers/parisc/sba_iommu.c	2008-07-15 16:34:32.000000000 +0200
@@ -1979,8 +1979,6 @@ sba_driver_callback(struct parisc_device
 	proc_create("sba_iommu-bitmap", 0, root, &sba_proc_bitmap_fops);
 #endif
 
-	parisc_vmerge_boundary = IOVP_SIZE;
-	parisc_vmerge_max_size = IOVP_SIZE * BITS_PER_LONG;
 	parisc_has_iommu();
 	return 0;
 }
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in
	blk_recalc_rq_segments about VMERGE
Date: Sat, 19 Jul 2008 21:17:08 -0500
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On Sat, 2008-07-19 at 21:45 -0400, Mikulas Patocka wrote:
> On Sat, 19 Jul 2008, David Miller wrote:
> 
> > From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> > Date: Thu, 17 Jul 2008 22:18:44 +0900
> > 
> > > BTW, as I've already said, I'm not against removing the vmerge
> > > accounting from the block layer.
> > 
> > I am also, as stated, not against this.
> > 
> > Fujita-san, please proposage a patch so that we can put this
> > issue behind us :-)
> 
> Few days ago I created this.
> 
> Another task would be to remove nr_hw_segments from request, bio and queue 
> parameters (if this patch is accepted).

I think we've already established that the code in question is correct
and functional, 

As far as I can tell, virtual merging has always been broken on ppc, so
it shouldn't enable it.  It looks like at some point in history sparc
went from a working vmerge to a non working one (by copying the broken
ppc code), so the correct fix for both of these arches is simply to turn
off virtual merging.

ppc claims to turn off virtual merging, but in fact the define is
broken.  Sparc should now follow ppc.

Try this patch

James

---

diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h
index 8b62782..0f3212c 100644
--- a/include/asm-powerpc/io.h
+++ b/include/asm-powerpc/io.h
@@ -715,7 +715,7 @@ static inline void * phys_to_virt(unsigned long address)
  * to coalesce sglists that happen to have been mapped in a contiguous
  * way by the iommu
  */
-#define BIO_VMERGE_BOUNDARY	0
+#undef BIO_VMERGE_BOUNDARY
 
 /*
  * 32 bits still uses virt_to_bus() for it's implementation of DMA
diff --git a/include/asm-sparc64/io.h b/include/asm-sparc64/io.h
index 3158960..1da5642 100644
--- a/include/asm-sparc64/io.h
+++ b/include/asm-sparc64/io.h
@@ -16,7 +16,9 @@
 /* BIO layer definitions. */
 extern unsigned long kern_base, kern_size;
 #define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
-#define BIO_VMERGE_BOUNDARY	8192
+
+/* virtual merging doesn't work on sparc now */
+#undef BIO_VMERGE_BOUNDARY
 
 static inline u8 _inb(unsigned long addr)
 {


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From - Thu Nov 08 21:02:33 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] ccio_clear_io_tlb() don't need to compute io page
	number a second time.
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To: Joel Soete <soete.joel@scarlet.be>
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On Sat, Jul 19, 2008 at 09:34:08PM +0000, Joel Soete wrote:
> --- a/drivers/parisc/ccio-dma.c	2008-07-19 21:17:37.000000000 +0000
> +++ b/drivers/parisc/ccio-dma.c	2008-07-19 21:32:54.000000000 +0000
> @@ -643,7 +643,6 @@
>  {
>  	u32 chain_size = 1 << ioc->chainid_shift;
>
> -	iovp &= IOVP_MASK;	/* clear offset bits, just want pagenum */
>  	byte_cnt += chain_size;
>
>  	while(byte_cnt > chain_size) {

applied.
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [RFC] Patch for glibc
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On Sat, Jul 19, 2008 at 12:11:01AM +0200, Helge Deller wrote:
> - only integer parameters allowed (but that's usual on most arches)
> - 32bit userspace implementation only
> - do I need to save the FP regs?
> - maybe more?
> 
> Any feedback is very much appreciated.
> (Please be kind, my hppa assembler knowledge isn't that good)
> 

You probably need to save fpregs as well, but you could just steal all
that from setjmp (ordering matters with fprs.)

r, Kyle
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Sat, 19 Jul 2008 21:17:08 -0500

> Try this patch

I'd rather remove the vmerge code, it doesn't buy us
anything, and for something so complex and so hard to
keep working correctly it's existence is far from
justified these days.
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From: Mikulas Patocka <mpatocka@redhat.com>
Date: Sat, 19 Jul 2008 21:45:11 -0400 (EDT)

> Few days ago I created this.
> 
> Another task would be to remove nr_hw_segments from request, bio and queue 
> parameters (if this patch is accepted).

I'm fine with this:

Acked-by: David S. Miller <davem@davemloft.net>
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Hi Kyle,


Thanks, this does work like a charm. This is the output now :

Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] FP[0] enabled: Rev 1 Model 16
[    0.000000] The 64-bit Kernel has started...
[    0.000000] console [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00005d90 00000491 00000000 00000002 09972987 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000301
[    0.000000] CPUID vers 18 rev 11 (0x0000024b)
[    0.000000] capabilities 0x1
[    0.000000] model 9000/800/L2000-5X
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 MB
[    0.000000]  1) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 MB
[    0.000000] Total Memory: 4096 MB
[    0.000000] Linux version 2.6.26 (root@spiderman) (gcc version 4.2.4 (Gentoo 4.2.4 p1.0)) #5 SMP Sun Jul 20 11:12:00 CEST 2008
[    0.000000] SMP: bootstrap CPU ID is 0
[17179569.184000] Built 2 zonelists in Zone order, mobility grouping on.  Total pages: 1034240
[17179569.184000] Kernel command line: root=/dev/md1 console=ttyS0 palo_kernel=2/vmlinux.test
[17179569.184000] PID hash table entries: 4096 (order: 12, 32768 bytes)
[17179569.184000] Console: colour dummy device 160x64
[17179569.196000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[17179569.216000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[17179569.676000] Memory: 4115968k/4194304k available (3467k kernel code, 77952k reserved, 1364k data, 244k init)
[17179569.776000] Mount-cache hash table entries: 256
[17179569.776000] Brought up 1 CPUs



Cheers,
  Guy



On Sat, 19 Jul 2008 19:04:18 -0400
Kyle McMartin <kyle@mcmartin.ca> wrote:

> On Sat, Jul 19, 2008 at 05:54:59PM -0400, Kyle McMartin wrote:
> > I'm *guessing* that umoddi3 or udivdi3 is doing an xmpyu or
> > something, which since this is probably before fpu init, is
> > trapping, which is trying to printk, which is recursively exploding.
> > 
> 
> If my guess is right, this quick fix might work. Can you please test
> it, as my a500 decided to have its scsi controller die in the middle
> of this...
> 
> (Proper fix is probably to bring fpu bringup into head.S, since it
> will be necessary for any printk with CONFIG_PRINTK_TIME on. (Or
> bring back my use embedded libgcc patch, which was buggy on
> 32-bit. :\ ))
> 
> diff --git a/init/main.c b/init/main.c
> index edeace0..729b150 100644
> --- a/init/main.c
> +++ b/init/main.c
> @@ -560,9 +560,9 @@ asmlinkage void __init start_kernel(void)
>  	tick_init();
>  	boot_cpu_init();
>  	page_address_init();
> +	setup_arch(&command_line);
>  	printk(KERN_NOTICE);
>  	printk(linux_banner);
> -	setup_arch(&command_line);
>  	mm_init_owner(&init_mm, &init_task);
>  	setup_command_line(command_line);
>  	unwind_setup();


-- 
Guy Martin
Gentoo Linux - HPPA port lead
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On Sat, 2008-07-19 at 21:07 -0700, David Miller wrote:
> From: James Bottomley <James.Bottomley@HansenPartnership.com>
> Date: Sat, 19 Jul 2008 21:17:08 -0500
> 
> > Try this patch
> 
> I'd rather remove the vmerge code, it doesn't buy us
> anything, and for something so complex and so hard to
> keep working correctly it's existence is far from
> justified these days.

You can ... as soon as BIO_VMERGE_BOUNDARY is undefined or set to zero,
it gets compiled out of the block code. 

Since we're using it successfully in parisc, I don't want the block code
removed, but I don't see a reason to force other architectures to use
it.

However, it has two use cases.  One is the legacy one of making rather
dumb I/O cards perform better (which is the primary on on parisc), but
there is a current one making huge transfers go through SCSI using using
the sg_table code.  That latter is pretty vital to me since I have to
keep the code working, but I don't really have any SCSI cards that can
take advantage of it without virtual merging.  As a slight irony, IBM is
trying to persuade me that a ppc would be better than a parisc for big
endian I/O testing ... so I might just be seeing if I can make virtual
merging work on power too.

James


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From - Thu Nov 08 21:02:34 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: 2.6.26 kernel crash
Date: Sun, 20 Jul 2008 18:46:11 +0200
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While debugging some user-space stuff I just faced this 32bit kernel crash (2.6.26):
Maybe someone has an idea?

Kernel Fault: Code=15 regs=5f578640 (Addr=000127ec)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111110000001111 Not tainted
r00-03  0004fc0f 10644f10 1011ee68 5f578288
r04-07  00000014 8c1fe860 8c1fe828 8eb7d030
r08-11  105ee890 00000040 0001264a 000d3b60
r12-15  00000000 000d3b5c 000dde68 000b0000
r16-19  8eb7d250 000b0000 ffffffff 000127ec
r20-23  ffffe040 00000000 101205d4 00000000
r24-27  00012800 101205cc 5f578288 1062ff10
r28-31  00000000 000002ee 5f578640 10120630
sr00-03  00000000 000013a7 00000000 000013a7
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1011ed04 1011ed08
 IIR: 0e601093    ISR: 00000000  IOR: 000127ec
 CPU:        0   CR30: 5f578000 CR31: ffffffff
 ORIG_R28: 40400000
 IAOQ[0]: unwind_frame_regs+0x214/0x244
 IAOQ[1]: unwind_frame_regs+0x218/0x244
 RP(r2): unwind_once+0x10/0x48
Backtrace:
 [<1011ee68>] unwind_once+0x10/0x48
 [<10112bbc>] do_show_stack+0x28/0xac
 [<10112cd0>] parisc_show_stack+0x90/0xa8
 [<10111258>] do_page_fault+0x174/0x294
 [<10113824>] handle_interruption+0x570/0x58c
 [<10117078>] intr_check_sig+0x0/0x34

Kernel panic - not syncing: Kernel Fault
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From - Thu Nov 08 21:02:34 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: 2.6.26 kernel crash
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On Sunday 20 July 2008, Helge Deller wrote:
> While debugging some user-space stuff I just faced this 32bit kernel crash (2.6.26):
> Maybe someone has an idea?

This is reproduceable.
Testcase and docu is here: http://gsyprf10.external.hp.com/~deller/crash.tgz

Just run:
LD_LIBRARY_PATH=.  ./a.out

Output is:
making contexts
swapping contexts
start f2
&on_stack=0x12d88
start f1(a0=1,a1=2,a2=3,a3=fffffffc)
<crash>

Info:
- test program is from glibc:
        glibc-2.7/stdlib/tst-setcontext.c
- the compiled libc.so.6 includes some changes for *context() functions from me.

 
> Kernel Fault: Code=15 regs=5f578640 (Addr=000127ec)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111110000001111 Not tainted
> r00-03  0004fc0f 10644f10 1011ee68 5f578288
> r04-07  00000014 8c1fe860 8c1fe828 8eb7d030
> r08-11  105ee890 00000040 0001264a 000d3b60
> r12-15  00000000 000d3b5c 000dde68 000b0000
> r16-19  8eb7d250 000b0000 ffffffff 000127ec
> r20-23  ffffe040 00000000 101205d4 00000000
> r24-27  00012800 101205cc 5f578288 1062ff10
> r28-31  00000000 000002ee 5f578640 10120630
> sr00-03  00000000 000013a7 00000000 000013a7
> sr04-07  00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 1011ed04 1011ed08
>  IIR: 0e601093    ISR: 00000000  IOR: 000127ec
>  CPU:        0   CR30: 5f578000 CR31: ffffffff
>  ORIG_R28: 40400000
>  IAOQ[0]: unwind_frame_regs+0x214/0x244
>  IAOQ[1]: unwind_frame_regs+0x218/0x244
>  RP(r2): unwind_once+0x10/0x48
> Backtrace:
>  [<1011ee68>] unwind_once+0x10/0x48
>  [<10112bbc>] do_show_stack+0x28/0xac
>  [<10112cd0>] parisc_show_stack+0x90/0xa8
>  [<10111258>] do_page_fault+0x174/0x294
>  [<10113824>] handle_interruption+0x570/0x58c
>  [<10117078>] intr_check_sig+0x0/0x34
> 
> Kernel panic - not syncing: Kernel Fault
> 


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From - Thu Nov 08 21:02:34 2018
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From: David Miller <davem@davemloft.net>
Newsgroups: gmane.linux.scsi,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH] block: fix q->max_segment_size checking in
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Sun, 20 Jul 2008 09:52:25 -0500

> Since we're using it successfully in parisc, I don't want the block code
> removed, but I don't see a reason to force other architectures to use
> it.
> 
> However, it has two use cases.  One is the legacy one of making rather
> dumb I/O cards perform better (which is the primary on on parisc), but
> there is a current one making huge transfers go through SCSI using using
> the sg_table code.  That latter is pretty vital to me since I have to
> keep the code working, but I don't really have any SCSI cards that can
> take advantage of it without virtual merging.  As a slight irony, IBM is
> trying to persuade me that a ppc would be better than a parisc for big
> endian I/O testing ... so I might just be seeing if I can make virtual
> merging work on power too.

All of this is gibberish, we've been over this a few times already
in this thread.

For a dumb I/O card, you advertise SG_ALL capabilities, the IOMMU
is going to merge things as it would have anyways, and you have
code in the driver to advance SG entries after each "dumb I/O".

There is zero value to the vmerge code, the real gains are being
realized already.
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.scsi
Subject: Re: [PATCH] block: fix q->max_segment_size checking in
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On Sun, 2008-07-20 at 10:23 -0700, David Miller wrote:
> From: James Bottomley <James.Bottomley@HansenPartnership.com>
> Date: Sun, 20 Jul 2008 09:52:25 -0500
> 
> > Since we're using it successfully in parisc, I don't want the block code
> > removed, but I don't see a reason to force other architectures to use
> > it.
> > 
> > However, it has two use cases.  One is the legacy one of making rather
> > dumb I/O cards perform better (which is the primary on on parisc), but
> > there is a current one making huge transfers go through SCSI using using
> > the sg_table code.  That latter is pretty vital to me since I have to
> > keep the code working, but I don't really have any SCSI cards that can
> > take advantage of it without virtual merging.  As a slight irony, IBM is
> > trying to persuade me that a ppc would be better than a parisc for big
> > endian I/O testing ... so I might just be seeing if I can make virtual
> > merging work on power too.
> 
> All of this is gibberish, we've been over this a few times already
> in this thread.

Really? I must have missed the proposed replacement for the
functionality that we're using then.

> For a dumb I/O card, you advertise SG_ALL capabilities, the IOMMU
> is going to merge things as it would have anyways, and you have
> code in the driver to advance SG entries after each "dumb I/O".

Not that dumb ... they just have a limited number of SG slots.  We
wouldn't want to run them as spoon fed PIO because that really would
kill performance.

> There is zero value to the vmerge code, the real gains are being
> realized already.

There is value to me in my testbed, which I can't achieve any other way
(except by buying different SCSI cards).

As I said, you can compile it out on sparc just fine.  I wish to keep it
running for parisc, so I'll maintain it.  If it ever bit rots out of
parisc like it has done for the other architectures, then feel free to
remove it.

James


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From - Thu Nov 08 21:02:34 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 2.6.26 kernel crash
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To: deller@gmx.de (Helge Deller)
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> > Kernel Fault: Code=15 regs=5f578640 (Addr=000127ec)
> > 
> >      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > PSW: 00000000000001001111110000001111 Not tainted
> > r00-03  0004fc0f 10644f10 1011ee68 5f578288
> > r04-07  00000014 8c1fe860 8c1fe828 8eb7d030
> > r08-11  105ee890 00000040 0001264a 000d3b60
> > r12-15  00000000 000d3b5c 000dde68 000b0000
> > r16-19  8eb7d250 000b0000 ffffffff 000127ec

FWIW, this is the instruction:

dave@hiauly6:~/opt/gnu/bin$ disasm 0x0e601093
   0:	0e 60 10 93 	ldw 0(r19),r19

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:02:34 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [RFC] Patch for glibc	getcontext()/makecontext()/setcontext()/swapcontext()
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Cc: Kyle McMartin <kyle@mcmartin.ca>,
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This is a multi-part message in MIME format.
--------------070908020905060806090801
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
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Kyle McMartin wrote:
> On Sat, Jul 19, 2008 at 12:11:01AM +0200, Helge Deller wrote:
>> - only integer parameters allowed (but that's usual on most arches)
>> - 32bit userspace implementation only
>> - do I need to save the FP regs?
>> - maybe more?
>>
>> Any feedback is very much appreciated.
>> (Please be kind, my hppa assembler knowledge isn't that good)
>>
> 
> You probably need to save fpregs as well, but you could just steal all
> that from setjmp (ordering matters with fprs.)

Thanks Kyle!

Attached is an updated patch, which
- saves and restores the FP regs
- passes glibc's stdlib/tst-setcontext.c test

Helge

--------------070908020905060806090801
Content-Type: text/x-patch;
 name="getcontext_12.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="getcontext_12.diff"

diff -up ports/sysdeps/unix/sysv/linux/hppa/Makefile.org ports/sysdeps/unix/sysv/linux/hppa/Makefile
--- ports/sysdeps/unix/sysv/linux/hppa/Makefile.org	2008-07-16 19:41:29.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/Makefile	2008-07-16 19:41:37.000000000 +0200
@@ -1,2 +1,7 @@
 # linux/hppa does not use -lmilli anymore
 gnulib := -lgcc
+
+ifeq ($(subdir),stdlib)
+gen-as-const-headers += ucontext_i.sym
+endif
+
diff -up ports/sysdeps/unix/sysv/linux/hppa/getcontext.S.org ports/sysdeps/unix/sysv/linux/hppa/getcontext.S
--- ports/sysdeps/unix/sysv/linux/hppa/getcontext.S.org	2008-07-16 19:52:11.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/getcontext.S	2008-07-20 20:03:29.000000000 +0200
@@ -0,0 +1,158 @@
+/* Get current user context.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Helge Deller <deller@gmx.de>, 2008.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+
+#include "ucontext_i.h"
+
+
+	/* Trampoline function.  */
+	.type	__getcontext_ret, #function
+__getcontext_ret:
+	copy	%r23, %r3
+	copy	%r24, %r4
+	copy	%r25, %r5
+	copy	%r26, %r6
+	bv	0(%r20)
+	copy	%r0, %ret0
+	.size	__getcontext_ret, .-__getcontext_ret
+
+
+ENTRY(__getcontext)
+	/* Save the register.  */
+	stw	%r0, oR0(%r26)
+	stw	%r1, oR1(%r26)
+	/* stw	%r2, oR2(%r26) - used for trampoline.  */
+	stw	%r3, oR3(%r26)
+	stw	%r4, oR4(%r26)
+	stw	%r5, oR5(%r26)
+	stw	%r6, oR6(%r26)
+	stw	%r7, oR7(%r26)
+	stw	%r8, oR8(%r26)
+	stw	%r9, oR9(%r26)
+	stw	%r10, oR10(%r26)
+	stw	%r11, oR11(%r26)
+	stw	%r12, oR12(%r26)
+	stw	%r13, oR13(%r26)
+	stw	%r14, oR14(%r26)
+	stw	%r15, oR15(%r26)
+	stw	%r16, oR16(%r26)
+	stw	%r17, oR17(%r26)
+	stw	%r18, oR18(%r26)
+	stw	%r19, oR19(%r26)
+	/* stw	%r20, oR20(%r26) - used for trampoline.  */
+	stw	%r21, oR21(%r26)
+	stw	%r22, oR22(%r26)
+	/* stw	%r23, oR23(%r26) - used for trampoline.  */
+	/* stw	%r24, oR24(%r26) - used for trampoline.  */
+	/* stw	%r25, oR25(%r26) - used for trampoline.  */
+	/* stw	%r26, oR26(%r26) - used for trampoline.  */
+	stw	%r27, oR27(%r26)
+	stw	%r28, oR28(%r26)
+	stw	%r29, oR29(%r26)
+	ldo	-64(%sp), %r1	/* Calculate %sp in %r1.  */
+	stw	%r1, oR30(%r26)	/* Save new %sp.  */
+	stw	%r31, oR31(%r26)
+
+	stw	%r0, oUC_FLAGS(%r26)
+	/* stw	%r0, oUC_LINK(%r26) - DO NOT OVERWRITE!  */
+	stw	%r1, oSS_SP(%r26)  /* New %sp.  */
+	stw	%r0, oSS_FLAGS(%r26)
+	stw	%r0, oSS_SIZE(%r26)
+
+	stw	%r0, oSC_FLAGS(%r26)
+
+	stw	%r0, oIASQ0(%r26)
+	stw	%r0, oIASQ1(%r26)
+	stw	%r0, oIAOQ0(%r26)
+	stw	%r0, oIAOQ1(%r26)
+	stw	%r0, oSAR(%r26) /* used as flag in swapcontext().  */
+
+
+	/* Store floating-point regs.  */
+	ldo	oFPREGS0(%r26),%r1
+	fstds,ma %fr0, 8(%r1)
+	fstds,ma %fr1, 8(%r1)
+	fstds,ma %fr2, 8(%r1)
+	fstds,ma %fr3, 8(%r1)
+	fstds,ma %fr4, 8(%r1)
+	fstds,ma %fr5, 8(%r1)
+	fstds,ma %fr6, 8(%r1)
+	fstds,ma %fr7, 8(%r1)
+	fstds,ma %fr8, 8(%r1)
+	fstds,ma %fr9, 8(%r1)
+	fstds,ma %fr10, 8(%r1)
+	fstds,ma %fr11, 8(%r1)
+	fstds,ma %fr12, 8(%r1)
+	fstds,ma %fr13, 8(%r1)
+	fstds,ma %fr14, 8(%r1)
+	fstds,ma %fr15, 8(%r1)
+	fstds,ma %fr16, 8(%r1)
+	fstds,ma %fr17, 8(%r1)
+	fstds,ma %fr18, 8(%r1)
+	fstds,ma %fr19, 8(%r1)
+	fstds,ma %fr20, 8(%r1)
+	fstds,ma %fr21, 8(%r1)
+	fstds,ma %fr22, 8(%r1)
+	fstds,ma %fr23, 8(%r1)
+	fstds,ma %fr24, 8(%r1)
+	fstds,ma %fr25, 8(%r1)
+	fstds,ma %fr26, 8(%r1)
+	fstds,ma %fr27, 8(%r1)
+	fstds,ma %fr28, 8(%r1)
+	fstds,ma %fr29, 8(%r1)
+	fstds,ma %fr30, 8(%r1)
+	fstds	 %fr31, 0(%r1)
+
+	/* Prologue */
+	stwm	%r4, 64(%r30)
+#ifdef PIC
+	stw	%r19, -32(%r30)
+#endif
+
+	/* Set up the trampoline registers.
+	   r20, r23, r24, r25, r26 and r2 are clobbered
+	   by call to getcontext() anyway. Reuse them.  */
+	stw	%r2, oR20(%r26)
+	stw	%r3, oR23(%r26)
+	stw	%r4, oR24(%r26)
+	stw	%r5, oR25(%r26)
+	stw	%r6, oR26(%r26)
+	ldil	L%__getcontext_ret, %r1
+	ldo     R%__getcontext_ret(%r1), %r1
+	stw	%r1, oR2(%r26)
+
+	/* Save the current signal mask.  */
+	/* sigprocmask(SIG_BLOCK, NULL, &ucp->uc_sigmask);  */
+	ldo	oSIGMASK(%r26), %r24
+	copy	%r0, %r25
+	bl	sigprocmask, %r2
+	ldi	SIG_BLOCK, %r26
+
+	/* Epilogue */
+	ldw	-84(%r30), %r2
+#ifdef PIC
+	ldw	-96(%r30), %r19
+#endif
+	bv	%r0(%r2)
+	ldwm	-64(%r30), %r4
+END(__getcontext)
+
+weak_alias (__getcontext, getcontext)
diff -up ports/sysdeps/unix/sysv/linux/hppa/makecontext.c.org ports/sysdeps/unix/sysv/linux/hppa/makecontext.c
--- ports/sysdeps/unix/sysv/linux/hppa/makecontext.c.org	2008-07-16 21:41:02.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/makecontext.c	2008-07-20 16:42:15.000000000 +0200
@@ -0,0 +1,79 @@
+/* Create new context.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Helge Deller <deller@gmx.de>, 2008.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <libintl.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sysdep.h>
+#include <ucontext.h>
+
+/* XXX: This implementation only handles integer arguments.  */
+
+void
+__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
+{
+  unsigned int *sp;
+  va_list ap;
+  int i;
+
+  if (argc > 8)
+    {
+      fprintf (stderr, _("\
+makecontext: does not know how to handle more than 8 arguments\n"));
+      exit (-1);
+    }
+
+  /* Generate room on stack for parameter if needed and uc_link.  */
+  sp = (unsigned int *) ucp->uc_stack.ss_sp;
+
+  /* Address to jump to.  */
+  ucp->uc_mcontext.sc_gr[2] = (unsigned long) func;
+
+  va_start (ap, argc);
+  /* Handle arguments.  */
+  for (i = 0; i < argc; ++i)
+    switch (i)
+      {
+      case 0:
+      case 1:
+      case 2:
+      case 3:
+      	ucp->uc_mcontext.sc_gr[26-i] = va_arg (ap, int);
+	break;
+      case 4:
+      case 5:
+      case 6:
+      case 7:
+	if (sizeof(unsigned long) == 4) {
+		/* 32bit: put arg7-arg4 on stack.  */
+		sp[7-i] = va_arg (ap, int);
+	} else {
+		/* 64bit: r19-r22 are arg7-arg4.  */
+		ucp->uc_mcontext.sc_gr[22+4-i] = va_arg (ap, int);
+	}
+	break;
+      }
+  va_end (ap);
+
+}
+
+
+weak_alias(__makecontext, makecontext)
diff -up ports/sysdeps/unix/sysv/linux/hppa/setcontext.S.org ports/sysdeps/unix/sysv/linux/hppa/setcontext.S
--- ports/sysdeps/unix/sysv/linux/hppa/setcontext.S.org	2008-07-16 22:29:10.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/setcontext.S	2008-07-20 20:13:05.000000000 +0200
@@ -0,0 +1,155 @@
+/* Install given context.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Helge Deller <deller@gmx.de>, 2008.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+
+#include "ucontext_i.h"
+
+
+ENTRY(__setcontext)
+	/* Prologue */
+	stwm	%r3, 64(%r30)
+#ifdef PIC
+	stw	%r19, -32(%r30)
+#endif
+
+	/* Save ucp.  */
+	copy	%r26, %r3
+
+L(_again):
+	/* Set the current signal mask.  */
+	/* sigprocmask(SIG_BLOCK, &ucp->uc_sigmask, NULL);  */
+	copy	%r0, %r24
+	ldo	oSIGMASK(%r3), %r25
+	bl	sigprocmask, %r2
+	ldi	SIG_SETMASK, %r26
+
+	comib,<> 0,%ret0,L(_error)
+	nop
+
+	/* Save %sp, %dp.  */
+	copy	%sp, %r4
+	copy	%dp, %r5
+	copy	%r19, %r6
+
+	/* Get the registers.  */
+	ldw	oR1(%r3), %r1
+	ldw	oR2(%r3), %r2
+	/* ldw	oR3(%r3), %r3 - used for ucp pointer.	*/
+	/* ldw	oR4(%r3), %r4 - used for original %sp.	*/
+	/* ldw	oR5(%r3), %r5 - used for %dp / %r27.	*/
+	/* ldw	oR6(%r3), %r6 - used for %r19.		*/
+	ldw	oR7(%r3), %r7
+	ldw	oR8(%r3), %r8
+	ldw	oR9(%r3), %r9
+	ldw	oR10(%r3), %r10
+	ldw	oR11(%r3), %r11
+	ldw	oR12(%r3), %r12
+	ldw	oR13(%r3), %r13
+	ldw	oR14(%r3), %r14
+	ldw	oR15(%r3), %r15
+	ldw	oR16(%r3), %r16
+	ldw	oR17(%r3), %r17
+	ldw	oR18(%r3), %r18
+	ldw	oR19(%r3), %r19
+	ldw	oR20(%r3), %r20
+	ldw	oR21(%r3), %r21
+	/* ldw	oR22(%r3), %r22 - dyncall arg.  */
+	ldw	oR23(%r3), %r23
+	ldw	oR24(%r3), %r24
+	ldw	oR25(%r3), %r25
+	ldw	oR26(%r3), %r26
+	ldw	oR27(%r3), %r27
+	ldw	oR28(%r3), %r28
+	ldw	oR29(%r3), %r29
+	ldw	oR30(%r3), %r30
+	/* ldw	oR31(%r3), %r31 - dyncall scratch register */
+
+	/* Restore floating-point registers.  */
+	ldo	 oFPREGS31(%r3), %r22
+	fldds	  0(%r22), %fr31
+	fldds,mb -8(%r22), %fr30
+	fldds,mb -8(%r22), %fr29
+	fldds,mb -8(%r22), %fr28
+	fldds,mb -8(%r22), %fr27
+	fldds,mb -8(%r22), %fr26
+	fldds,mb -8(%r22), %fr25
+	fldds,mb -8(%r22), %fr24
+	fldds,mb -8(%r22), %fr23
+	fldds,mb -8(%r22), %fr22
+	fldds,mb -8(%r22), %fr21
+	fldds,mb -8(%r22), %fr20
+	fldds,mb -8(%r22), %fr19
+	fldds,mb -8(%r22), %fr18
+	fldds,mb -8(%r22), %fr17
+	fldds,mb -8(%r22), %fr16
+	fldds,mb -8(%r22), %fr15
+	fldds,mb -8(%r22), %fr14
+	fldds,mb -8(%r22), %fr13
+	fldds,mb -8(%r22), %fr12
+	fldds,mb -8(%r22), %fr11
+	fldds,mb -8(%r22), %fr10
+	fldds,mb -8(%r22), %fr9
+	fldds,mb -8(%r22), %fr8
+	fldds,mb -8(%r22), %fr7
+	fldds,mb -8(%r22), %fr6
+	fldds,mb -8(%r22), %fr5
+	fldds,mb -8(%r22), %fr4
+	fldds,mb -8(%r22), %fr3
+	fldds,mb -8(%r22), %fr2
+	fldds,mb -8(%r22), %fr1
+	fldds,mb -8(%r22), %fr0
+
+	/* Calculate new stack pointer.  */
+	ldw	oSS_SP(%r3), %sp
+	ldo	64(%sp), %sp
+
+	/* Call function.  */
+	copy	%r2, %r22
+	bl	$$dyncall, %r31
+	copy	%r31, %r2
+
+	/* We return here. Get new ucp in %r3, reload %sp.  */
+	ldw	oUC_LINK(%r3), %r3
+	copy	%r4, %sp
+	copy	%r5, %dp
+	copy	%r6, %r19
+
+	/* If ucp == NULL then exit().  */
+	comib,<> 0,%r3,L(_again)
+	nop
+
+	/* If we looped through all uc_link contexts, exit now.  */
+	bl	_exit, %r2
+	ldi	-1, %r26
+	
+
+L(_error):
+	/* Epilogue */
+	ldw	-84(%r30), %r2
+#ifdef PIC
+	ldw	-96(%r30), %r19
+#endif
+	bv	%r0(%r2)
+	ldwm	-64(%r30), %r3
+L(pseudo_end):
+PSEUDO_END(__setcontext)
+
+weak_alias(__setcontext, setcontext)
diff -up ports/sysdeps/unix/sysv/linux/hppa/swapcontext.c.org ports/sysdeps/unix/sysv/linux/hppa/swapcontext.c
--- ports/sysdeps/unix/sysv/linux/hppa/swapcontext.c.org	2008-07-20 18:27:22.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/swapcontext.c	2008-07-20 18:32:51.000000000 +0200
@@ -0,0 +1,43 @@
+/* Swap to new context.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Helge Deller <deller@gmx.de>, 2008.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <ucontext.h>
+
+extern int __getcontext (ucontext_t *ucp);
+extern int __setcontext (const ucontext_t *ucp);
+
+int
+__swapcontext (ucontext_t *oucp, const ucontext_t *ucp)
+{
+  /* Save the current machine context to oucp.  */
+  __getcontext (oucp);
+
+  /* sc_sar flags to skip the setcontext call on reactivation.  */
+  if (oucp->uc_mcontext.sc_sar == 0) {
+  	++oucp->uc_mcontext.sc_sar;
+
+	/* Restore the machine context in ucp.  */
+  	__setcontext (ucp);
+  }
+
+  return 0;
+}
+
+weak_alias (__swapcontext, swapcontext)
diff -up ports/sysdeps/unix/sysv/linux/hppa/ucontext_i.sym.org ports/sysdeps/unix/sysv/linux/hppa/ucontext_i.sym
--- ports/sysdeps/unix/sysv/linux/hppa/ucontext_i.sym.org	2008-07-16 19:27:46.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/ucontext_i.sym	2008-07-20 20:03:07.000000000 +0200
@@ -0,0 +1,59 @@
+#include <stddef.h>
+#include <signal.h>
+#include <sys/ucontext.h>
+
+--
+
+SIG_BLOCK
+SIG_SETMASK
+
+#define ucontext(member)	offsetof (ucontext_t, member)
+#define mcontext(member)	ucontext (uc_mcontext.member)
+#define mreg(reg)		mcontext (sc_gr[reg])
+
+oUC_FLAGS	ucontext (uc_flags)
+oUC_LINK	ucontext (uc_link)
+oSS_SP		ucontext (uc_stack.ss_sp)
+oSS_FLAGS	ucontext (uc_stack.ss_flags)
+oSS_SIZE	ucontext (uc_stack.ss_size)
+oSC_FLAGS	mcontext (sc_flags)
+oR0		mreg (0)
+oR1		mreg (1)
+oR2		mreg (2)
+oR3		mreg (3)
+oR4		mreg (4)
+oR5		mreg (5)
+oR6		mreg (6)
+oR7		mreg (7)
+oR8		mreg (8)
+oR9		mreg (9)
+oR10		mreg (10)
+oR11		mreg (11)
+oR12		mreg (12)
+oR13		mreg (13)
+oR14		mreg (14)
+oR15		mreg (15)
+oR16		mreg (16)
+oR17		mreg (17)
+oR18		mreg (18)
+oR19		mreg (19)
+oR20		mreg (20)
+oR21		mreg (21)
+oR22		mreg (22)
+oR23		mreg (23)
+oR24		mreg (24)
+oR25		mreg (25)
+oR26		mreg (26)
+oR27		mreg (27)
+oR28		mreg (28)
+oR29		mreg (29)
+oR30		mreg (30)
+oR31		mreg (31)
+oFPREGS0	mcontext (sc_fr[0])
+oFPREGS31	mcontext (sc_fr[31])
+oIASQ0		mcontext (sc_iasq[0])
+oIASQ1		mcontext (sc_iasq[1])
+oIAOQ0		mcontext (sc_iaoq[0])
+oIAOQ1		mcontext (sc_iaoq[1])
+oSAR		mcontext (sc_sar)
+oSIGMASK	ucontext (uc_sigmask)

--------------070908020905060806090801--
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From - Thu Nov 08 21:02:34 2018
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Subject: [PATCH 15/22] parisc: Introducing asm/syscalls.h
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/543>

Declaring arch-dependent syscalls for parisc architecture

Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
---
 arch/parisc/kernel/process.c  |    1 +
 arch/parisc/kernel/signal.c   |    1 +
 include/asm-parisc/syscalls.h |   36 ++++++++++++++++++++++++++++++++++++
 3 files changed, 38 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index b80e02a..9a73fcd 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -46,6 +46,7 @@
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
+#include <linux/syscalls.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 06213d1..b10cade 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -25,6 +25,7 @@
 #include <linux/stddef.h>
 #include <linux/compat.h>
 #include <linux/elf.h>
+#include <linux/syscalls.h>
 #include <asm/ucontext.h>
 #include <asm/rt_sigframe.h>
 #include <asm/uaccess.h>
diff --git a/include/asm-parisc/syscalls.h b/include/asm-parisc/syscalls.h
index e69de29..0de8837 100644
--- a/include/asm-parisc/syscalls.h
+++ b/include/asm-parisc/syscalls.h
@@ -0,0 +1,36 @@
+/*
+ * syscalls.h - Linux syscall interfaces (arch-specific)
+ *
+ * Copyright (c) 2008 Jaswinder Singh
+ *
+ * This file is released under the GPLv2.
+ * See the file COPYING for more details.
+ *
+ * Please do not call me directly, include linux/syscalls.h
+ */
+
+#ifndef _ASM_PARISC_SYSCALLS_H
+#define _ASM_PARISC_SYSCALLS_H
+
+/* kernel/process.c */
+int sys_clone(unsigned long, unsigned long, struct pt_regs *);
+int sys_vfork(struct pt_regs *);
+asmlinkage int sys_execve(struct pt_regs *);
+
+/* kernel/signal.c */
+void sys_rt_sigreturn(struct pt_regs *, int);
+
+/* kernel/sys_parisc.c */
+asmlinkage unsigned long sys_mmap2(unsigned long, unsigned long,
+				   unsigned long, unsigned long,
+				   unsigned long, unsigned long);
+asmlinkage unsigned long sys_mmap(unsigned long, unsigned long,
+				  unsigned long, unsigned long,
+				  unsigned long, unsigned long);
+#ifdef CONFIG_64BIT
+asmlinkage long sys_truncate64(const char __user *, unsigned long);
+asmlinkage long sys_ftruncate64(unsigned int, unsigned long);
+asmlinkage long sys_fcntl64(unsigned int, unsigned int, unsigned long);
+#endif
+
+#endif /* _ASM_PARISC_SYSCALLS_H */
-- 
1.5.5.1



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From - Thu Nov 08 21:02:34 2018
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From: Joel Soete <soete.joel@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: ccio-dma q about io pdir: is there a kernel mem space never paged?
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Hello all,

Re-reading: <http://www.hpl.hp.com/hpjournal/96feb/feb96a6.pdf>

I noticed another detail:
sic "Recall that the I/O page directory contains all active address translations and must be memory-resident."

Those key words "must be memory-resident" would mean to me never paged (in/out)?

Even thought I read ./include/linux/gfp.h, it's not clear to me which could be the gfp_mask I can use in:
	ioc->pdir_base = (u64 *)__get_free_pages(GFP_KERNEL,
                                                  get_order(ioc->pdir_size));

to advise kernel to never paging this I/O page directory?

Any idea?

Tia,
	J.
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From - Thu Nov 08 21:02:35 2018
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From: Joel Soete <soete.joel@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: ccio_mark_invalid(): would it have to clear a bit or byte?
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Hello all,

given this comment:
  * Given a virtual address (vba, arg2) and space id, (sid, arg1),
  * load the I/O PDIR entry pointed to by pdir_ptr (arg0). Each IO Pdir
  * entry consists of 8 bytes as shown below (MSB == bit 0):
  *
  *
  * WORD 0:
  * +------+----------------+-----------------------------------------------+
  * | Phys | Virtual Index  |               Phys                            |
  * | 0:3  |     0:11       |               4:19                            |
  * |4 bits|   12 bits      |              16 bits                          |
  * +------+----------------+-----------------------------------------------+
  * WORD 1:
  * +-----------------------+-----------------------------------------------+
  * |      Phys    |  Rsvd  | Prefetch |Update |Rsvd  |Lock  |Safe  |Valid  |
  * |     20:39    |        | Enable   |Enable |      |Enable|DMA   |       |
  * |    20 bits   | 5 bits | 1 bit    |1 bit  |2 bits|1 bit |1 bit |1 bit  |
  * +-----------------------+-----------------------------------------------+
  *

and also this:
         while (byte_cnt > 0) {
                 /* clear I/O Pdir entry "valid" bit first */
                 ((unsigned char *) pdir_ptr)[7] = 0;

So if I well understand 'Valid' field of a pdir entry is well of 1 bit but the code cleanup a all byte?

Is coding something like:
#define PTE_VALID_BIT_MASK      0xfffffffffffffffeULL	

		*pdir_ptr &= PTE_VALID_BIT_MASK;

wouldn't do better what comment says it does?

Well a short test seems to help but doesn't fix all issue:

patst007 login: end_request: I/O error, dev sdl, sector 6659574
__ratelimit: 32 messages suppressed 

Buffer I/O error on device sdl9, logical block 193374 

lost page write due to I/O error on sdl9 

Buffer I/O error on device sdl9, logical block 193375 

lost page write due to I/O error on sdl9 

Buffer I/O error on device sdl9, logical block 193376 

lost page write due to I/O error on sdl9 

Buffer I/O error on device sdl9, logical block 193377 

lost page write due to I/O error on sdl9 

Buffer I/O error on device sdl9, logical block 193378 

lost page write due to I/O error on sdl9 

Buffer I/O error on device sdl9, logical block 193379 

lost page write due to I/O error on sdl9 

Buffer I/O error on device sdl9, logical block 193380 

lost page write due to I/O error on sdl9
Buffer I/O error on device sdl9, logical block 193381
lost page write due to I/O error on sdl9
Buffer I/O error on device sdl9, logical block 193382
lost page write due to I/O error on sdl9
Buffer I/O error on device sdl9, logical block 193383

Tia for all advise,
	J.
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From - Thu Nov 08 21:02:35 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: ccio-dma q about io pdir: is there a kernel mem space never
	paged?
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On Mon, Jul 21, 2008 at 12:28:56PM +0000, Joel Soete wrote:
>

The kernel is never paged out. Just think, if you page out the swapper,
how could you page anything back in?
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From - Thu Nov 08 21:02:35 2018
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Subject: Re:ccio_mark_invalid(): would it have to clear a bit or byte?
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> Hello all,
> 
> given this comment:
>   * Given a virtual address (vba, arg2) and space id, (sid, arg1),
>   * load the I/O PDIR entry pointed to by pdir_ptr (arg0). Each IO Pdir
>   * entry consists of 8 bytes as shown below (MSB == bit 0):
>   *
>   *
>   * WORD 0:
>   * +------+----------------+-----------------------------------------------+
>   * | Phys | Virtual Index  |               Phys                            |
>   * | 0:3  |     0:11       |               4:19                            |
>   * |4 bits|   12 bits      |              16 bits                          |
>   * +------+----------------+-----------------------------------------------+
>   * WORD 1:
>   * +-----------------------+-----------------------------------------------+
>   * |      Phys    |  Rsvd  | Prefetch |Update |Rsvd  |Lock  |Safe  |Valid  |
>   * |     20:39    |        | Enable   |Enable |      |Enable|DMA   |       |
>   * |    20 bits   | 5 bits | 1 bit    |1 bit  |2 bits|1 bit |1 bit |1 bit  |
>   * +-----------------------+-----------------------------------------------+
>   *
> 
> and also this:
>          while (byte_cnt > 0) {
>                  /* clear I/O Pdir entry "valid" bit first */
>                  ((unsigned char *) pdir_ptr)[7] = 0;
> 
> So if I well understand 'Valid' field of a pdir entry is well of 1 bit but
the code cleanup a all byte?
> 
> Is coding something like:
> #define PTE_VALID_BIT_MASK      0xfffffffffffffffeULL	
> 
> 		*pdir_ptr &= PTE_VALID_BIT_MASK;
> 
> wouldn't do better what comment says it does?
> 
may be a more detail patch would better explain the idea:
@@ -674,19 +673,27 @@
 static CCIO_INLINE void
 ccio_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
 {
-       u32 iovp = (u32)CCIO_IOVP(iova);
-       size_t saved_byte_cnt;
+       u32     iovp;
+       u64     *pdir_ptr;
+       size_t  saved_byte_cnt;
 
+       iovp = (u32)CCIO_IOVP(iova);
+       pdir_ptr = &ioc->pdir_base[PDIR_INDEX(iovp)];
        /* round up to nearest page size */
        saved_byte_cnt = byte_cnt = ALIGN(byte_cnt, IOVP_SIZE);
 
        while(byte_cnt > 0) {
                /* invalidate one page at a time */
                unsigned int idx = PDIR_INDEX(iovp);
-               char *pdir_ptr = (char *) &(ioc->pdir_base[idx]);
-
                BUG_ON(idx >= (ioc->pdir_size / sizeof(u64)));
-               pdir_ptr[7] = 0;        /* clear only VALID bit */ 
+
+               /* clear only VALID bit */
+#ifdef __LP64__
+                *pdir_ptr &= ~((u64) IOPDIR_VALID);
+#else
+                ((unsigned long *) pdir_ptr)[1] &= ~IOPDIR_VALID;
+#endif
+
                /*
                ** FIXME: PCX_W platforms don't need FDC/SYNC. (eg C360)
                **   PCX-U/U+ do. (eg C200/C240)
@@ -695,8 +702,9 @@
                ** Hopefully someone figures out how to patch (NOP) the
                ** FDC/SYNC out at boot time.
                */
-               asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
+               asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
 
+               pdir_ptr++;
                iovp     += IOVP_SIZE;
                byte_cnt -= IOVP_SIZE;
        }
=== <> ===

But it doesn'r fix any issue, though.

Cheers,
    J.


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From - Thu Nov 08 21:02:35 2018
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On Fri, 2 May 2008 23:35:19 -0700 Andrew Morton <akpm@linux-foundation.org>=
 wrote:
>
> On Sat, 3 May 2008 15:45:42 +1000 Stephen Rothwell <sfr@canb.auug.org.au>=
 wrote:
>=20
> > The following architectures are not in linux-next (and should be):
> >=20
> > alpha		cris		frv
> > h8300		m32r		m68knommu
> > mips		mn10300		parisc
> > um		v850		xtensa
>=20
> mips, m32r, parisc and xtensa do have git trees.  The rest are mastered as
> discrete patches in -mm.
>=20
> Except for m68knommu, which pops unexpectedly out of the woodwork during
> the merge window.  I've asked that this be altered ;)

So (from the above list) cris, m68knommu and mips have joined the
linux-next fray ...

(cc's some maintainers)
--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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Removed duplicated include file <linux/proc_fs.h> in 
drivers/parisc/ccio-dma.c.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index b30e38f..fc1dd6d 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -77,7 +77,6 @@
 #undef CCIO_MAP_STATS
 #endif

-#include <linux/proc_fs.h>
 #include <asm/runway.h>                /* for proc_runway_root */

 #ifdef DEBUG_CCIO_INIT


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On Wed, Jul 23, 2008 at 10:45:11PM +0800, Huang Weiyi wrote:
> Removed duplicated include file <linux/proc_fs.h> in 
> drivers/parisc/ccio-dma.c.
> 
> Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>

Thanks!
Acked-by: Grant Grundler <grundler@parisc-linux.org>

grant

> 
> diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
> index b30e38f..fc1dd6d 100644
> --- a/drivers/parisc/ccio-dma.c
> +++ b/drivers/parisc/ccio-dma.c
> @@ -77,7 +77,6 @@
>  #undef CCIO_MAP_STATS
>  #endif
> 
> -#include <linux/proc_fs.h>
>  #include <asm/runway.h>                /* for proc_runway_root */
> 
>  #ifdef DEBUG_CCIO_INIT
> 
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From - Thu Nov 08 21:02:35 2018
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From: "Joel Soete" <soete.joel@scarlet.be>
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Subject: ccio-dma: is issue could be related to too much io_tlb entries?
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Hello Grant, Kyle, et al.,

Iirc the number of io_tlb enties on this u2/uturn ioa is of 256?

Because issue occur only when I do a lot of I/O on scsi disk (sometime request
of mapping reach 128 pages), the idea was that it could induce some exceed of
iotlb entries.

I so turn on some STAT (just used_pages) and grab following data:
[snip]
IO PDIR size    : 131072 bytes (16384 entries)
IO PDIR entries : 16384 total  170 used (16214 free, 1%)
Resource bitmap : 2048 bytes (16384 pages)
  Bitmap search : 36221/36430/38793 (min/avg/max CPU Cycles)

IO PDIR size    : 131072 bytes (16384 entries)
IO PDIR entries : 16384 total  235 used (16149 free, 1%)
Resource bitmap : 2048 bytes (16384 pages)
  Bitmap search : 36220/36346/37806 (min/avg/max CPU Cycles)

IO PDIR size    : 131072 bytes (16384 entries)
IO PDIR entries : 16384 total  718 used (15666 free, 4%)
Resource bitmap : 2048 bytes (16384 pages)
  Bitmap search : 36222/36342/38472 (min/avg/max CPU Cycles)

## issue occurs just when I ready above message. 

IO PDIR size    : 131072 bytes (16384 entries)
IO PDIR entries : 16384 total  444 used (15940 free, 2%)
Resource bitmap : 2048 bytes (16384 pages)
  Bitmap search : 36220/36330/37830 (min/avg/max CPU Cycles)
[snip]

Even thought, I ended the stress test, the system continue to work smoothly
with 444 used entries?

Anyway, difference between those last 2 samples (718 - 444) = 274 increase of
io_pdir entries.

I also add a loop to bitcount entries of res_map and grab more:
[snip]
IO PDIR size    : 262144 bytes (32768 entries)  
IO PDIR entries : 32768 total  329 used (32439 free, 1%)
IO PDIR entries : 329 res_map_count
Resource bitmap : 4096 bytes (32768 pages)
  Bitmap search : 36221/36626/38310 (min/avg/max CPU Cycles)

IO PDIR size    : 262144 bytes (32768 entries)  
IO PDIR entries : 32768 total  801 used (31967 free, 2%)
IO PDIR entries : 801 res_map_count
Resource bitmap : 4096 bytes (32768 pages)
  Bitmap search : 36215/36325/37852 (min/avg/max CPU Cycles)

IO PDIR size    : 262144 bytes (32768 entries)  
IO PDIR entries : 32768 total  329 used (32439 free, 1%)
IO PDIR entries : 329 res_map_count
Resource bitmap : 4096 bytes (32768 pages)
  Bitmap search : 36222/36883/38742 (min/avg/max CPU Cycles)

[...]

(in 1 second 801 - 329 = 472)

But continuing a bit test (by accident), I noticed that system can survive with:

IO PDIR size    : 262144 bytes (32768 entries)
IO PDIR entries : 32768 total  1478 used (31290 free, 4%)
IO PDIR entries : 1478 res_map_count
Resource bitmap : 4096 bytes (32768 pages)
  Bitmap search : 36223/36696/38463 (min/avg/max CPU Cycles)

Well as scatterlist is still puzzling me, I can still be confused between
iommu and mmu pages mapping, sorry so in advance if it's yet another annoying
comment.

Tx again,
    J.





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> > For a dumb I/O card, you advertise SG_ALL capabilities, the IOMMU
> > is going to merge things as it would have anyways, and you have
> > code in the driver to advance SG entries after each "dumb I/O".
> 
> Not that dumb ... they just have a limited number of SG slots.  We
> wouldn't want to run them as spoon fed PIO because that really would
> kill performance.
> 
> > There is zero value to the vmerge code, the real gains are being
> > realized already.
> 
> There is value to me in my testbed, which I can't achieve any other way
> (except by buying different SCSI cards).
> 
> As I said, you can compile it out on sparc just fine.  I wish to keep it
> running for parisc, so I'll maintain it.  If it ever bit rots out of
> parisc like it has done for the other architectures, then feel free to
> remove it.
> 
> James

So try to #define BIO_VMERGE_BOUNDARY 0 for Pa-Risc and tell us what 
performance degradation do you see (and what driver do you use and what is 
the I/O pattern).

If you show something specific, we can consider that --- but you haven't 
yet told us anything, except generic talk.

Mikulas
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From - Thu Nov 08 21:02:35 2018
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in
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To: Mikulas Patocka <mpatocka@redhat.com>
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On Thu, 2008-07-24 at 11:07 -0400, Mikulas Patocka wrote:
> So try to #define BIO_VMERGE_BOUNDARY 0 for Pa-Risc and tell us what 
> performance degradation do you see (and what driver do you use and what is 
> the I/O pattern).
> 
> If you show something specific, we can consider that --- but you haven't 
> yet told us anything, except generic talk.

You keep ignoring inconvenient facts.  For about the third time:

I run a test bed for sg_tables (large chaining of requests).  This runs
on parisc using virtual merging (has to because the final physical table
size can't go over the sg list of the SCSI card).  If I turn off virtual
merging I can no longer test sg_tables in vanilla kernels.

James


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From - Thu Nov 08 21:02:35 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in blk_recalc_rq_segments
 about VMERGE
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On Thu, 24 Jul 2008, James Bottomley wrote:

> On Thu, 2008-07-24 at 11:07 -0400, Mikulas Patocka wrote:
> > So try to #define BIO_VMERGE_BOUNDARY 0 for Pa-Risc and tell us what 
> > performance degradation do you see (and what driver do you use and what is 
> > the I/O pattern).
> > 
> > If you show something specific, we can consider that --- but you haven't 
> > yet told us anything, except generic talk.
> 
> You keep ignoring inconvenient facts.  For about the third time:
> 
> I run a test bed for sg_tables (large chaining of requests).  This runs
> on parisc using virtual merging (has to because the final physical table
> size can't go over the sg list of the SCSI card).  If I turn off virtual
> merging I can no longer test sg_tables in vanilla kernels.
> 
> James

What sg_tables test do you mean? What does the test do? Why couldn't you 
run the test if BIO_VMERGE_BOUNDARY is 0? Normal I/O obviously can work 
with BIO_VMERGE_BOUNDARY 0, the kernel will just send more smaller 
requests.

Mikulas
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From - Thu Nov 08 21:02:35 2018
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Newsgroups: gmane.linux.kernel.kernel-testers,gmane.linux.kernel,gmane.linux.ports.parisc
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Hi,

On Thu, Jul 10, 2008 at 03:42:00PM +0200, Domenico Andreoli wrote:
> On Sun, Jul 06, 2008 at 01:45:52PM +0200, Rafael J. Wysocki wrote:
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.25.  Please verify if it still should be listed.
> 
> I am going to check it later. Last time I saw it was around 2.6.26-rc7/8.

I finally have the test result:

Linux version 2.6.26 (cavok@ska) (gcc version 4.1.3 20080623 (prerelease) (Debian 4.1.2-23)) #34 SMP Wed Jul 23 13:50:45 CEST 2008
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005d10 00000491 00000000 00000002 77b406fc 100000f0 00000008 000000b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x3
model 9000/785/J5600
Total Memory: 3840 MB
LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
SMP: bootstrap CPU ID is 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 969600
Kernel command line: root=/dev/sdb5 panic=60 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux.git
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Memory: 3858944k/3932160k available (2967k kernel code, 73036k reserved, 1304k data, 240k init)
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x0000000130000000   (3840 MB)
      .init : 0x00000000405c4000 - 0x0000000040600000   ( 240 kB)
      .data : 0x00000000403e5d88 - 0x000000004052c000   (1304 kB)
      .text : 0x0000000040100000 - 0x00000000403e5d88   (2967 kB)
Calibrating delay loop... <6>1101.00 BogoMIPS (lpj=5505024)
Security Framework initialized
Mount-cache hash table entries: 256
Brought up 1 CPUs
net_namespace: 1432 bytes
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfffffffffed34000 [10/2] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
7. Forte W+ 2w at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5d1, 0x00004 }
8. Forte W+ 2w at 0xfffffffffffa2000 [34] { 0, 0x0, 0x5d1, 0x00004 }
9. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09e, 0x00009 }
Enabling regular chassis codes support v0.05
Releasing cpu 1 now, hpa=fffffffffffa2000

> Anyway the error message was not the same firstly reported there,
> it could be another problem. More details will follow. Thank you.

indeed

here is also the config file:

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.26
# Wed Jul 23 13:21:59 2008
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_TIME_LOW_RES=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_IRQ_PER_CPU=y
CONFIG_ARCH_SUPPORTS_AOUT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
CONFIG_IKCONFIG=y
# CONFIG_IKCONFIG_PROC is not set
CONFIG_LOG_BUF_SHIFT=15
# CONFIG_CGROUPS is not set
# CONFIG_GROUP_SCHED is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_RELAY is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_COMPAT_BRK=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
# CONFIG_MARKERS is not set
CONFIG_HAVE_OPROFILE=y
# CONFIG_HAVE_KPROBES is not set
# CONFIG_HAVE_KRETPROBES is not set
# CONFIG_HAVE_DMA_ATTRS is not set
CONFIG_USE_GENERIC_SMP_HELPERS=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_CLASSIC_RCU=y

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
# CONFIG_SPARSEMEM_STATIC is not set
# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_RESOURCES_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_COMPAT=y
CONFIG_NR_CPUS=2

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
CONFIG_ISA=y
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_PCI_LEGACY=y
# CONFIG_PCI_DEBUG is not set
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set

#
# Networking
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=m
# CONFIG_NET_IPGRE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=m
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IP_VS is not set
CONFIG_IPV6=m
# CONFIG_IPV6_PRIVACY is not set
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
CONFIG_INET6_TUNNEL=m
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_BEET is not set
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=m
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETLABEL is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=m
# CONFIG_NF_CT_ACCT is not set
# CONFIG_NF_CONNTRACK_MARK is not set
# CONFIG_NF_CONNTRACK_EVENTS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
# CONFIG_NF_CT_PROTO_SCTP is not set
# CONFIG_NF_CT_PROTO_UDPLITE is not set
# CONFIG_NF_CONNTRACK_AMANDA is not set
CONFIG_NF_CONNTRACK_FTP=m
# CONFIG_NF_CONNTRACK_H323 is not set
CONFIG_NF_CONNTRACK_IRC=m
# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
# CONFIG_NF_CONNTRACK_PPTP is not set
# CONFIG_NF_CONNTRACK_SANE is not set
# CONFIG_NF_CONNTRACK_SIP is not set
# CONFIG_NF_CONNTRACK_TFTP is not set
CONFIG_NF_CT_NETLINK=m
CONFIG_NETFILTER_XTABLES=m
# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set
# CONFIG_NETFILTER_XT_TARGET_CONNMARK is not set
# CONFIG_NETFILTER_XT_TARGET_DSCP is not set
# CONFIG_NETFILTER_XT_TARGET_MARK is not set
# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set
# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set
# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set
# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set
# CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP is not set
# CONFIG_NETFILTER_XT_MATCH_COMMENT is not set
# CONFIG_NETFILTER_XT_MATCH_CONNBYTES is not set
# CONFIG_NETFILTER_XT_MATCH_CONNLIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_CONNMARK is not set
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
# CONFIG_NETFILTER_XT_MATCH_DSCP is not set
# CONFIG_NETFILTER_XT_MATCH_ESP is not set
# CONFIG_NETFILTER_XT_MATCH_HELPER is not set
# CONFIG_NETFILTER_XT_MATCH_IPRANGE is not set
# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
# CONFIG_NETFILTER_XT_MATCH_MAC is not set
# CONFIG_NETFILTER_XT_MATCH_MARK is not set
# CONFIG_NETFILTER_XT_MATCH_OWNER is not set
# CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set
# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
# CONFIG_NETFILTER_XT_MATCH_REALM is not set
# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
CONFIG_NETFILTER_XT_MATCH_STATE=m
# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
# CONFIG_NETFILTER_XT_MATCH_STRING is not set
# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set

#
# IP: Netfilter Configuration
#
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
# CONFIG_IP_NF_QUEUE is not set
CONFIG_IP_NF_IPTABLES=m
# CONFIG_IP_NF_MATCH_RECENT is not set
# CONFIG_IP_NF_MATCH_ECN is not set
# CONFIG_IP_NF_MATCH_AH is not set
# CONFIG_IP_NF_MATCH_TTL is not set
# CONFIG_IP_NF_MATCH_ADDRTYPE is not set
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
# CONFIG_IP_NF_TARGET_REDIRECT is not set
# CONFIG_IP_NF_TARGET_NETMAP is not set
# CONFIG_NF_NAT_SNMP_BASIC is not set
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
# CONFIG_NF_NAT_TFTP is not set
# CONFIG_NF_NAT_AMANDA is not set
# CONFIG_NF_NAT_PPTP is not set
# CONFIG_NF_NAT_H323 is not set
# CONFIG_NF_NAT_SIP is not set
CONFIG_IP_NF_MANGLE=m
# CONFIG_IP_NF_TARGET_ECN is not set
# CONFIG_IP_NF_TARGET_TTL is not set
# CONFIG_IP_NF_TARGET_CLUSTERIP is not set
# CONFIG_IP_NF_RAW is not set
# CONFIG_IP_NF_SECURITY is not set
# CONFIG_IP_NF_ARPTABLES is not set

#
# IPv6: Netfilter Configuration
#
CONFIG_NF_CONNTRACK_IPV6=m
# CONFIG_IP6_NF_QUEUE is not set
CONFIG_IP6_NF_IPTABLES=m
# CONFIG_IP6_NF_MATCH_RT is not set
# CONFIG_IP6_NF_MATCH_OPTS is not set
# CONFIG_IP6_NF_MATCH_FRAG is not set
# CONFIG_IP6_NF_MATCH_HL is not set
# CONFIG_IP6_NF_MATCH_IPV6HEADER is not set
# CONFIG_IP6_NF_MATCH_AH is not set
# CONFIG_IP6_NF_MATCH_MH is not set
# CONFIG_IP6_NF_MATCH_EUI64 is not set
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_TARGET_REJECT=m
# CONFIG_IP6_NF_MANGLE is not set
# CONFIG_IP6_NF_RAW is not set
# CONFIG_IP6_NF_SECURITY is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_SCHED is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set

#
# Wireless
#
# CONFIG_CFG80211 is not set
# CONFIG_WIRELESS_EXT is not set
# CONFIG_MAC80211 is not set
# CONFIG_IEEE80211 is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
# CONFIG_PNP is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=8192
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_EEPROM_93CX6 is not set
CONFIG_SGI_IOC4=m
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=m
CONFIG_BLK_DEV_IDE=m

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_BLK_DEV_IDEDISK=m
CONFIG_IDEDISK_MULTI_MODE=y
CONFIG_BLK_DEV_IDECD=m
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_BLK_DEV_IDESCSI is not set
# CONFIG_IDE_TASK_IOCTL is not set
# CONFIG_IDE_PROC_FS is not set

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=m
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
CONFIG_RAID_ATTRS=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=y
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_CHR_DEV_SCH is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_LASI700 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_ZALON is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_DH is not set
# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#

#
# Enable only one of the two stacks, unless you know what you are doing
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_LASI_82596 is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
CONFIG_NET_VENDOR_3COM=y
# CONFIG_EL1 is not set
# CONFIG_EL2 is not set
# CONFIG_EL16 is not set
# CONFIG_EL3 is not set
CONFIG_VORTEX=y
# CONFIG_TYPHOON is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
CONFIG_TULIP_NAPI=y
CONFIG_TULIP_NAPI_HW_MITIGATION=y
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_NET_PCI is not set
# CONFIG_B44 is not set
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set

#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 is not set
# CONFIG_IWLWIFI_LEDS is not set

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_GSCPS2 is not set
# CONFIG_HP_SDC is not set
# CONFIG_SERIO_PCIPS2 is not set
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
# CONFIG_DEVKMEM is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=16
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
# CONFIG_SERIAL_8250_MANY_PORTS is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MUX is not set
CONFIG_PDC_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_GEN_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
# CONFIG_SPI is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set

#
# Sonics Silicon Backplane
#
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set

#
# Multimedia devices
#

#
# Multimedia core support
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
# CONFIG_VIDEO_MEDIA is not set

#
# Multimedia drivers
#
# CONFIG_DAB is not set

#
# Graphics support
#
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_SOUND=m
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
# CONFIG_SND_SEQUENCER is not set
# CONFIG_SND_MIXER_OSS is not set
# CONFIG_SND_PCM_OSS is not set
# CONFIG_SND_DYNAMIC_MINORS is not set
# CONFIG_SND_SUPPORT_OLD_API is not set
# CONFIG_SND_VERBOSE_PROCFS is not set
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_AC97_CODEC=m
# CONFIG_SND_DRIVERS is not set
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
# CONFIG_SND_USB is not set
# CONFIG_SND_GSC is not set
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
# CONFIG_HID_SUPPORT is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=m
# CONFIG_USB_DEBUG is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=m
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set

#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
#

#
# may also be needed; see USB_STORAGE Help for more information
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_MON is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_AUERSWALD is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_BERRY_CHARGE is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_PHIDGET is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_GADGET is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
# CONFIG_RTC_CLASS is not set
# CONFIG_UIO is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
# CONFIG_EXT4DEV_FS is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_DNOTIFY is not set
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=m

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=m
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=0
CONFIG_MAGIC_SYSRQ=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_RODATA is not set

#
# Security options
#
# CONFIG_KEYS is not set
CONFIG_SECURITY=y
CONFIG_SECURITY_NETWORK=y
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=0
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_MANAGER=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set

#
# Digest
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=m
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_HW is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
# CONFIG_GENERIC_FIND_FIRST_BIT is not set
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=m
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y

> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=10786
> > Subject		: parisc: 64bit SMP does not boot on J5600
> > Submitter	: Domenico Andreoli <cavokz-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > Date		: 2008-05-22 16:14 (46 days old)
> > References	: http://marc.info/?l=linux-kernel&m=121147328028081&w=4

Regards,
Domenico

-----[ Domenico Andreoli, aka cavok
 --[ http://www.dandreoli.com/gpgkey.asc
   ---[ 3A0F 2F80 F79C 678A 8936  4FEE 0677 9033 A20E BC50

From - Thu Nov 08 21:02:36 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.scsi
Subject: Re: [PATCH] block: fix q->max_segment_size checking in
	blk_recalc_rq_segments about VMERGE
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On Thu, 2008-07-24 at 12:34 -0400, Mikulas Patocka wrote:
> On Thu, 24 Jul 2008, James Bottomley wrote:
> 
> > On Thu, 2008-07-24 at 11:07 -0400, Mikulas Patocka wrote:
> > > So try to #define BIO_VMERGE_BOUNDARY 0 for Pa-Risc and tell us what 
> > > performance degradation do you see (and what driver do you use and what is 
> > > the I/O pattern).
> > > 
> > > If you show something specific, we can consider that --- but you haven't 
> > > yet told us anything, except generic talk.
> > 
> > You keep ignoring inconvenient facts.  For about the third time:
> > 
> > I run a test bed for sg_tables (large chaining of requests).  This runs
> > on parisc using virtual merging (has to because the final physical table
> > size can't go over the sg list of the SCSI card).  If I turn off virtual
> > merging I can no longer test sg_tables in vanilla kernels.
> > 
> > James
> 
> What sg_tables test do you mean? What does the test do? Why couldn't you 
> run the test if BIO_VMERGE_BOUNDARY is 0? Normal I/O obviously can work 
> with BIO_VMERGE_BOUNDARY 0, the kernel will just send more smaller 

Look, if you don't really understand what I'm doing, it's not really my
job to educate you.  The sg_table discussions are on marc.info, mainly
on the SCSI lists; just look for 'sg chaining' in the header (need to
use google site ... marc's search is bad).

You can complain if the code is impacting you ... but I believe I've
optimised it so it isn't.  Your basic problem amounts to you not liking
me doing something that has no impact on you ... I'm afraid that's what
freedom leads to (shocking, I know).

James


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From - Thu Nov 08 21:02:36 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.scsi,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH] block: fix q->max_segment_size checking in blk_recalc_rq_segments
 about VMERGE
Date: Thu, 24 Jul 2008 17:49:14 -0400 (EDT)
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Thu, 24 Jul 2008, James Bottomley wrote:

> On Thu, 2008-07-24 at 12:34 -0400, Mikulas Patocka wrote:
> > On Thu, 24 Jul 2008, James Bottomley wrote:
> > 
> > > On Thu, 2008-07-24 at 11:07 -0400, Mikulas Patocka wrote:
> > > > So try to #define BIO_VMERGE_BOUNDARY 0 for Pa-Risc and tell us what 
> > > > performance degradation do you see (and what driver do you use and what is 
> > > > the I/O pattern).
> > > > 
> > > > If you show something specific, we can consider that --- but you haven't 
> > > > yet told us anything, except generic talk.
> > > 
> > > You keep ignoring inconvenient facts.  For about the third time:
> > > 
> > > I run a test bed for sg_tables (large chaining of requests).  This runs
> > > on parisc using virtual merging (has to because the final physical table
> > > size can't go over the sg list of the SCSI card).  If I turn off virtual
> > > merging I can no longer test sg_tables in vanilla kernels.
> > > 
> > > James
> > 
> > What sg_tables test do you mean? What does the test do? Why couldn't you 
> > run the test if BIO_VMERGE_BOUNDARY is 0? Normal I/O obviously can work 
> > with BIO_VMERGE_BOUNDARY 0, the kernel will just send more smaller 
> 
> Look, if you don't really understand what I'm doing, it's not really my
> job to educate you.  The sg_table discussions are on marc.info, mainly
> on the SCSI lists; just look for 'sg chaining' in the header (need to
> use google site ... marc's search is bad).
> 
> You can complain if the code is impacting you ... but I believe I've
> optimised it so it isn't.  Your basic problem amounts to you not liking
> me doing something that has no impact on you ... I'm afraid that's what
> freedom leads to (shocking, I know).
> 
> James

Chaining of sg_tables is used for drivers with big sg tables --- and 
vmerge counting is used for drivers with small sg tables. So what do they 
have in common?

Summary, what I mean:

* in blk-merge.c, you have 85 lines, that is 16% of the size of the file, 
devoted to counting of hw_segments

* it is only used on two architectures, one already outdated (alpha), the 
other being discontinued (pa-risc). On all the other architectures, 
hw_segments == phys_segments

* it is prone to bugs and hard to maintain, because the same value must be 
calculated in blk-merge.c and in architectural iommu functions --- if the 
value differs, you create too long request, corrupt kernel memory and 
crash (happened on sparc64). Anyone changing blk-merge in the future will 
risk breaking something on the architectures that use BIO_VMERGE_BOUNDARY 
--- and because these architectures are so rare, the bug will go unnoticed 
for long time --- like in the case of sparc64.

* you are just talking how this code is important for performance without 
showing any single proof that it really is (temporarily disable 
hw_segments accounting by defining BIO_VMERGE_BOUNDARY 0 and get the 
numbers).

Mikulas
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From - Thu Nov 08 21:02:36 2018
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From: David Miller <davem@davemloft.net>
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in
 blk_recalc_rq_segments about VMERGE
Date: Thu, 24 Jul 2008 14:53:36 -0700 (PDT)
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From: Mikulas Patocka <mpatocka@redhat.com>
Date: Thu, 24 Jul 2008 17:49:14 -0400 (EDT)

> * it is prone to bugs and hard to maintain, because the same value must be 
> calculated in blk-merge.c and in architectural iommu functions --- if the 
> value differs, you create too long request, corrupt kernel memory and 
> crash (happened on sparc64). Anyone changing blk-merge in the future will 
> risk breaking something on the architectures that use BIO_VMERGE_BOUNDARY 
> --- and because these architectures are so rare, the bug will go unnoticed 
> for long time --- like in the case of sparc64.

I completely agree with this point.

This VMERGE stuff is now a non-trivial maintainence burdon because
anyone who wants to hack on the block layer has to be mindful of
VMERGE but is very unlikely to have access to a system that it can
even be tested on.

And the answer isn't "James Bottomly will test your changes for you",
because that simply doesn't scale.

I still say we should definitely remove the VMERGE code.  It's not
worth the maintainence hassle just for some SG chaining test rig
on some obscure platform.

I really only hear one person who really wants this code around any
more.  Is that the Linux way? :-) Can't he patch it into his tree when
he needs it or write an alternative way to stress the SG chaining
code?  He has the source, right? :-)))
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From - Thu Nov 08 21:02:36 2018
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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.scsi
Subject: Re: [PATCH] block: fix q->max_segment_size checking in
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On Thu, 24 Jul 2008 17:49:14 -0400 (EDT)
Mikulas Patocka <mpatocka@redhat.com> wrote:

> On Thu, 24 Jul 2008, James Bottomley wrote:
> 
> > On Thu, 2008-07-24 at 12:34 -0400, Mikulas Patocka wrote:
> > > On Thu, 24 Jul 2008, James Bottomley wrote:
> > > 
> > > > On Thu, 2008-07-24 at 11:07 -0400, Mikulas Patocka wrote:
> > > > > So try to #define BIO_VMERGE_BOUNDARY 0 for Pa-Risc and tell us what 
> > > > > performance degradation do you see (and what driver do you use and what is 
> > > > > the I/O pattern).
> > > > > 
> > > > > If you show something specific, we can consider that --- but you haven't 
> > > > > yet told us anything, except generic talk.
> > > > 
> > > > You keep ignoring inconvenient facts.  For about the third time:
> > > > 
> > > > I run a test bed for sg_tables (large chaining of requests).  This runs
> > > > on parisc using virtual merging (has to because the final physical table
> > > > size can't go over the sg list of the SCSI card).  If I turn off virtual
> > > > merging I can no longer test sg_tables in vanilla kernels.
> > > > 
> > > > James
> > > 
> > > What sg_tables test do you mean? What does the test do? Why couldn't you 
> > > run the test if BIO_VMERGE_BOUNDARY is 0? Normal I/O obviously can work 
> > > with BIO_VMERGE_BOUNDARY 0, the kernel will just send more smaller 
> > 
> > Look, if you don't really understand what I'm doing, it's not really my
> > job to educate you.  The sg_table discussions are on marc.info, mainly
> > on the SCSI lists; just look for 'sg chaining' in the header (need to
> > use google site ... marc's search is bad).
> > 
> > You can complain if the code is impacting you ... but I believe I've
> > optimised it so it isn't.  Your basic problem amounts to you not liking
> > me doing something that has no impact on you ... I'm afraid that's what
> > freedom leads to (shocking, I know).
> > 
> > James
> 
> Chaining of sg_tables is used for drivers with big sg tables --- and 
> vmerge counting is used for drivers with small sg tables. So what do they 
> have in common?

VMERGE enables you to handle a large request even with drivers with
small sg tables.


> Summary, what I mean:
> 
> * in blk-merge.c, you have 85 lines, that is 16% of the size of the file, 
> devoted to counting of hw_segments
> 
> * it is only used on two architectures, one already outdated (alpha), the 
> other being discontinued (pa-risc). On all the other architectures, 
> hw_segments == phys_segments

BTW, alpha IOMMU can't handle VMERGE. But the IOMMU has the code to
handle VMERGE so one-line patch can fix the IOMMU.


As I said before, can we leave this to Jens, keeping or removing
VMERGE? Seems that I see the same arguments again and again.
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From - Thu Nov 08 21:02:36 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in blk_recalc_rq_segments
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Cc: James.Bottomley@HansenPartnership.com, davem@davemloft.net,
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To: mpatocka@redhat.com (Mikulas Patocka)
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> * it is only used on two architectures, one already outdated (alpha), the 
> other being discontinued (pa-risc). On all the other architectures, 
> hw_segments == phys_segments

This "business based" argument should be ignored.  Followed to the limit,
there would only be one architecture left...

Dave
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From - Thu Nov 08 21:02:36 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH] block: fix q->max_segment_size checking in
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Date: Thu, 24 Jul 2008 23:47:50 -0400
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On Thu, 2008-07-24 at 14:53 -0700, David Miller wrote:
> From: Mikulas Patocka <mpatocka@redhat.com>
> Date: Thu, 24 Jul 2008 17:49:14 -0400 (EDT)
> 
> > * it is prone to bugs and hard to maintain, because the same value must be 
> > calculated in blk-merge.c and in architectural iommu functions --- if the 
> > value differs, you create too long request, corrupt kernel memory and 
> > crash (happened on sparc64). Anyone changing blk-merge in the future will 
> > risk breaking something on the architectures that use BIO_VMERGE_BOUNDARY 
> > --- and because these architectures are so rare, the bug will go unnoticed 
> > for long time --- like in the case of sparc64.
> 
> I completely agree with this point.

So you think the parametrisation in the block layer is the wrong way to
approach the problem?  On this argument your next patch should be
removing physical merging as well because it also relies on a
parametrisation model of how the device builds the sg list.

> This VMERGE stuff is now a non-trivial maintainence burdon because
> anyone who wants to hack on the block layer has to be mindful of
> VMERGE but is very unlikely to have access to a system that it can
> even be tested on.

I'm sorry sparc broke, really I am ... but you changed your iommu code
from one with a working vmerge to one without and failed to turn off
vmerging.  Partly it wasn't noticed because at 2*PAGE_SIZE you have a
strange vmerge boundary, so it's harder to notice.   However, I can't
extrapolate that just because this happened on sparc it will inevitably
happen on all other architectures.

> And the answer isn't "James Bottomly will test your changes for you",
> because that simply doesn't scale.

Actually, parisc will test your code we have a PAGE_SIZE vmerge
boundary, so the effect is much more noticeable.

> I still say we should definitely remove the VMERGE code.  It's not
> worth the maintainence hassle just for some SG chaining test rig
> on some obscure platform.

OK ... well you've had your say and so have I.  The code in question is
the responsibility of a particular maintainer ... we'll let him decide.

> I really only hear one person who really wants this code around any
> more.  Is that the Linux way? :-) Can't he patch it into his tree when
> he needs it or write an alternative way to stress the SG chaining
> code?  He has the source, right? :-)))

You're advocating an out of tree patch as a solution?  I didn't know
you'd been appointed RHEL maintainer ;-)

James


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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Thu, 24 Jul 2008 23:47:50 -0400

> I'm sorry sparc broke, really I am ... but you changed your iommu code
> from one with a working vmerge to one without and failed to turn off
> vmerging.  Partly it wasn't noticed because at 2*PAGE_SIZE you have a
> strange vmerge boundary, so it's harder to notice.   However, I can't
> extrapolate that just because this happened on sparc it will inevitably
> happen on all other architectures.

The vmerge boundary on sparc64 was 8K which is equal to sparc64's base
PAGE_SIZE.  I don't know where you get that 2*PAGE_SIZE from.

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Removed duplicated include file <linux/compat.h> in 
arch/parisc/kernel/signal.c.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 06213d1..71ab17a 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -33,7 +33,6 @@
 #include <asm/asm-offsets.h>

 #ifdef CONFIG_COMPAT
-#include <linux/compat.h>
 #include "signal32.h"
 #endif


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The gateway machines to cupertino (gsyfrf11/10) have been inaccessible
for most of last week.  Can we get someone local to give them a poke and
see what's up with them?

James


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On Mon, Jul 28, 2008 at 09:19:05AM -0500, James Bottomley wrote:
> The gateway machines to cupertino (gsyfrf11/10) have been inaccessible
> for most of last week.  Can we get someone local to give them a poke and
> see what's up with them?

Dave Anglin asked me about it during OLS.  I suggested he poke Rick
Jones ...

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From: Rick Jones <rick.jones2@hp.com>
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Subject: Re: Cupertino test ring problem?
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Matthew Wilcox wrote:
> On Mon, Jul 28, 2008 at 09:19:05AM -0500, James Bottomley wrote:
> 
>>The gateway machines to cupertino (gsyfrf11/10) have been inaccessible
>>for most of last week.  Can we get someone local to give them a poke and
>>see what's up with them?
> 
> 
> Dave Anglin asked me about it during OLS.  I suggested he poke Rick
> Jones ...

That explains that mild ache in my side :)

The Cupertino test ring got moved last week from one machine room to 
another. This also included netperf.org and ftp.cup.hp.com. Shutdown was 
about 1600 Pacific time on the 23rd, and power was restored to the racks 
by about that time on Thursday.  I brought-up netperf.org, 
ftp.cup.hp.com and they talked fine and dandy on the network, so I 
simply powered-on the lp1000r gateway and ass-u-me-d it would work as 
well.  I guess it didn't :(  and I will try to take a look at them today.

rick jones

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On Mon, Jul 28, 2008 at 10:09:54AM -0700, Rick Jones wrote:
> well.  I guess it didn't :(  and I will try to take a look at them today.

Thanks, Rick!

-- 
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On Sun, Jul 20, 2008 at 11:23:45AM +0200, Guy Martin wrote:
> [    0.000000] FP[0] enabled: Rev 1 Model 16
> [    0.000000] The 64-bit Kernel has started...

I pushed a better fix to my git tree on kernel.org on top of
v2.6.27-rc1. Can you test that?

r, Kyle
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Hi Kyle,

Works like a charm !

ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 5029888 mediaptr 0x1000
Segment 1 load 0063c000 size 395176 mediaptr 0x4cd000
Segment 2 load 006a0000 size 251456 mediaptr 0x52e000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[17179569.184000] Linux version 2.6.27-rc1 (root@spiderman) (gcc version 4.2.4 (Gentoo 4.2.4 p1.0)) #1 SMP Tue Jul 29 19:32:01 CEST 2008
[17179569.184000] FP[0] enabled: Rev 1 Model 16
[17179569.184000] The 64-bit Kernel has started...
[17179569.184000] console [ttyB0] enabled
[17179569.184000] Initialized PDC Console for debugging.
[17179569.184000] Determining PDC firmware type: 64 bit PAT.


Thanks,
  Guy


On Tue, 29 Jul 2008 00:29:29 -0400
Kyle McMartin <kyle@mcmartin.ca> wrote:

> On Sun, Jul 20, 2008 at 11:23:45AM +0200, Guy Martin wrote:
> > [    0.000000] FP[0] enabled: Rev 1 Model 16
> > [    0.000000] The 64-bit Kernel has started...
> 
> I pushed a better fix to my git tree on kernel.org on top of
> v2.6.27-rc1. Can you test that?
> 
> r, Kyle


-- 
Guy Martin
Gentoo Linux - HPPA port lead
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A couple of the rx2600's were not powered-up, so I've powered them up. 
One of the rp34xx's does not seem "happy" and will need further 
diagnosis.  If there are other things still "not right" with the ring, 
please feel free to let me know the specifics.

rick jones
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On Tue, 2008-07-29 at 13:03 -0700, Rick Jones wrote:
> A couple of the rx2600's were not powered-up, so I've powered them up. 
> One of the rp34xx's does not seem "happy" and will need further 
> diagnosis.  If there are other things still "not right" with the ring, 
> please feel free to let me know the specifics.

gsyprf11 and gsyprf10 are still not responding to pings ... could the IP
routings have changed or something?

James


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From - Thu Nov 08 21:02:37 2018
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From: Matthew Wilcox <matthew@wil.cx>
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On Tue, Jul 29, 2008 at 01:03:10PM -0700, Rick Jones wrote:
> A couple of the rx2600's were not powered-up, so I've powered them up. 
> One of the rp34xx's does not seem "happy" and will need further 
> diagnosis.  If there are other things still "not right" with the ring, 
> please feel free to let me know the specifics.

I can't connect to port 22 on any of gsyprf3, gsyprf10 or gsyprf11.

-- 
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From - Thu Nov 08 21:02:37 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] fix unwind crash - was: Re: 2.6.26 kernel crash
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I narrowed down to the problematic codepath, and I assume the attached 
patch might fix it. Problem is, that I can't test without my testcase 
which is on gsyprf10 (which is unreachable right now), so this patch 
here is currently a RFC...

Helge

Signed-off-by: Helge Deller <deller@gmx.de>


Helge Deller wrote:
> On Sunday 20 July 2008, Helge Deller wrote:
>> While debugging some user-space stuff I just faced this 32bit kernel crash (2.6.26):
>> Maybe someone has an idea?
> 
> This is reproduceable.
> Testcase and docu is here: http://gsyprf10.external.hp.com/~deller/crash.tgz
> 
> Just run:
> LD_LIBRARY_PATH=.  ./a.out
> 
> Output is:
> making contexts
> swapping contexts
> start f2
> &on_stack=0x12d88
> start f1(a0=1,a1=2,a2=3,a3=fffffffc)
> <crash>
> 
> Info:
> - test program is from glibc:
>         glibc-2.7/stdlib/tst-setcontext.c
> - the compiled libc.so.6 includes some changes for *context() functions from me.
> 
>  
>> Kernel Fault: Code=15 regs=5f578640 (Addr=000127ec)
>>
>>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>> PSW: 00000000000001001111110000001111 Not tainted
>> r00-03  0004fc0f 10644f10 1011ee68 5f578288
>> r04-07  00000014 8c1fe860 8c1fe828 8eb7d030
>> r08-11  105ee890 00000040 0001264a 000d3b60
>> r12-15  00000000 000d3b5c 000dde68 000b0000
>> r16-19  8eb7d250 000b0000 ffffffff 000127ec
>> r20-23  ffffe040 00000000 101205d4 00000000
>> r24-27  00012800 101205cc 5f578288 1062ff10
>> r28-31  00000000 000002ee 5f578640 10120630
>> sr00-03  00000000 000013a7 00000000 000013a7
>> sr04-07  00000000 00000000 00000000 00000000
>>
>> IASQ: 00000000 00000000 IAOQ: 1011ed04 1011ed08
>>  IIR: 0e601093    ISR: 00000000  IOR: 000127ec
>>  CPU:        0   CR30: 5f578000 CR31: ffffffff
>>  ORIG_R28: 40400000
>>  IAOQ[0]: unwind_frame_regs+0x214/0x244
>>  IAOQ[1]: unwind_frame_regs+0x218/0x244
>>  RP(r2): unwind_once+0x10/0x48
>> Backtrace:
>>  [<1011ee68>] unwind_once+0x10/0x48
>>  [<10112bbc>] do_show_stack+0x28/0xac
>>  [<10112cd0>] parisc_show_stack+0x90/0xa8
>>  [<10111258>] do_page_fault+0x174/0x294
>>  [<10113824>] handle_interruption+0x570/0x58c
>>  [<10117078>] intr_check_sig+0x0/0x34
>>
>> Kernel panic - not syncing: Kernel Fault

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diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 701b2d2..8b4708d 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -341,8 +341,15 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
 			info->prev_sp = info->sp - frame_size;
 			if (e->Millicode)
 				info->rp = info->r31;
-			else if (rpoffset)
-				info->rp = *(unsigned long *)(info->prev_sp - rpoffset);
+			else if (rpoffset) {
+				unsigned long tmp;
+
+				if (get_user(tmp,
+				       (unsigned long *)(info->prev_sp - rpoffset)))
+					info->rp = 0;
+				else
+					info->rp = tmp;
+			}
 			info->prev_ip = info->rp;
 			info->rp = 0;
 		}

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> gsyprf11 and gsyprf10 are still not responding to pings ... could the
> IP routings have changed or something?

 > I can't connect to port 22 on any of gsyprf3, gsyprf10 or gsyprf11.

Well, the IP's have remained the same, but the systems are physically in 
a different building.  Both netperf.org and ftp.cup.hp.com have moved 
from the same starting point to the same end-point.  If folks cannot 
ping them or cannot get to port 22 on those then there is still 
something amis in the network.  Otherwise there is still something amis 
with gsyprf[3|10|11].

rick jones


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On Tue, 2008-07-29 at 13:57 -0700, Rick Jones wrote:
> > gsyprf11 and gsyprf10 are still not responding to pings ... could the
> > IP routings have changed or something?
> 
>  > I can't connect to port 22 on any of gsyprf3, gsyprf10 or gsyprf11.
> 
> Well, the IP's have remained the same, but the systems are physically in 
> a different building.  Both netperf.org and ftp.cup.hp.com have moved 
> from the same starting point to the same end-point.  If folks cannot 
> ping them or cannot get to port 22 on those then there is still 
> something amis in the network.  Otherwise there is still something amis 
> with gsyprf[3|10|11].

gsyprf10 at least is one of the ia64 boxes.  Helpfully it identifies
itself as lp1000 or something at the login prompt.  gsyprf11 is a PA
A500 type box.  It should identify as gsyprf11 at the login prompt.  We
only need one up and running to begin diagnosing as we should be able to
then get to other remote consoles.

James


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From - Thu Nov 08 21:02:38 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: Cupertino test ring problem?
Date: Wed, 30 Jul 2008 23:15:24 -0600
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Cc: Rick Jones <rick.jones2@hp.com>, Matthew Wilcox <matthew@wil.cx>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Tue, Jul 29, 2008 at 05:09:45PM -0500, James Bottomley wrote:
> On Tue, 2008-07-29 at 13:57 -0700, Rick Jones wrote:
> > > gsyprf11 and gsyprf10 are still not responding to pings ... could the
> > > IP routings have changed or something?
> > 
> >  > I can't connect to port 22 on any of gsyprf3, gsyprf10 or gsyprf11.
> > 
> > Well, the IP's have remained the same, but the systems are physically in 
> > a different building.  Both netperf.org and ftp.cup.hp.com have moved 
> > from the same starting point to the same end-point.  If folks cannot 
> > ping them or cannot get to port 22 on those then there is still 
> > something amis in the network.  Otherwise there is still something amis 
> > with gsyprf[3|10|11].
> 
> gsyprf10 at least is one of the ia64 boxes.  Helpfully it identifies
> itself as lp1000 or something at the login prompt.

gsyprf10 is an x86 machine (HP lp1000r netserver).

> gsyprf11 is a PA A500 type box.  It should identify as gsyprf11
> at the login prompt.  We
> only need one up and running to begin diagnosing as we should be able to
> then get to other remote consoles.

I'll check with Rick tomorrow to see when I can drop by to help resurrect
them.

I expected gsyprf10 to auto reboot on it's own.
I'll change gsyprf11 and gsyprf3 to also autoboot since I don't think they
do at the moment.

cheers,
grant

> 
> James
> 
> 
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From - Thu Nov 08 21:02:38 2018
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From: Rick Jones <rick.jones2@hp.com>
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Subject: Re: Cupertino test ring problem?
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To: Grant Grundler <grundler@parisc-linux.org>
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Grant Grundler wrote:
> On Tue, Jul 29, 2008 at 05:09:45PM -0500, James Bottomley wrote:
> 
>>On Tue, 2008-07-29 at 13:57 -0700, Rick Jones wrote:
>>
>>>>gsyprf11 and gsyprf10 are still not responding to pings ... could the
>>>>IP routings have changed or something?
>>>
>>> > I can't connect to port 22 on any of gsyprf3, gsyprf10 or gsyprf11.
>>>
>>>Well, the IP's have remained the same, but the systems are physically in 
>>>a different building.  Both netperf.org and ftp.cup.hp.com have moved 
>>>from the same starting point to the same end-point.  If folks cannot 
>>>ping them or cannot get to port 22 on those then there is still 
>>>something amis in the network.  Otherwise there is still something amis 
>>>with gsyprf[3|10|11].
>>
>>gsyprf10 at least is one of the ia64 boxes.  Helpfully it identifies
>>itself as lp1000 or something at the login prompt.
> 
> 
> gsyprf10 is an x86 machine (HP lp1000r netserver).
> 
> 
>>gsyprf11 is a PA A500 type box.  It should identify as gsyprf11
>>at the login prompt.  We
>>only need one up and running to begin diagnosing as we should be able to
>>then get to other remote consoles.
> 
> 
> I'll check with Rick tomorrow to see when I can drop by to help resurrect
> them.
> 
> I expected gsyprf10 to auto reboot on it's own.
> I'll change gsyprf11 and gsyprf3 to also autoboot since I don't think they
> do at the moment.

I can confirm that gsyperf3 was/is not set to autoboot.  I can also 
state that it cannot successfully boot.  During POST it spits-out FRU 
problem messages and during OS boot boatloads of Segmentation Fault 
output while it tries to boot, and end-up in busybox.

I'm not sure that gsyprf11 (pa) is connected to the external net.

I tried swapping the cables on gsyprf10 (the lp1000r)  I have to see if 
I can find the old monitor and keyboard to see what its boot state 
happens to be.

Grant - wrt times, I'm here all week, from about 0930 to about 0330 each 
day.  I'd be around later but this week I'm playing single-parent :)

rick jones
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From - Thu Nov 08 21:02:38 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: ccio_mark_invalid(): would it have to clear a bit or byte?
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On Mon, Jul 21, 2008 at 02:51:08PM +0000, Joel Soete wrote:
> Hello all,
>
> given this comment:
>  * Given a virtual address (vba, arg2) and space id, (sid, arg1),
>  * load the I/O PDIR entry pointed to by pdir_ptr (arg0). Each IO Pdir
>  * entry consists of 8 bytes as shown below (MSB == bit 0):
...
> and also this:
>         while (byte_cnt > 0) {
>                 /* clear I/O Pdir entry "valid" bit first */
>                 ((unsigned char *) pdir_ptr)[7] = 0;
>
> So if I well understand 'Valid' field of a pdir entry is well of 1 bit but 
> the code cleanup a all byte?

That's just a convenient way to clobber the bit we care about.
The fact that the rest of the pdir remains available is irrelevant
except for debugging (when we might dump IO Pdir to see the history.)

>
> Is coding something like:
> #define PTE_VALID_BIT_MASK      0xfffffffffffffffeULL	
>
> 		*pdir_ptr &= PTE_VALID_BIT_MASK;

That's a load/modify store of a 64-bit value.
That substantially more instructions than a single byte store.

> wouldn't do better what comment says it does?

Yes, but the comment is just describing what needs to happen, not exactly how.
The "entry valid" bit just needs to be cleared and it doesn't matter how.

hth
grant

>
> Well a short test seems to help but doesn't fix all issue:
>
> patst007 login: end_request: I/O error, dev sdl, sector 6659574
> __ratelimit: 32 messages suppressed 
> Buffer I/O error on device sdl9, logical block 193374 
> lost page write due to I/O error on sdl9 
> Buffer I/O error on device sdl9, logical block 193375 
> lost page write due to I/O error on sdl9 
> Buffer I/O error on device sdl9, logical block 193376 
> lost page write due to I/O error on sdl9 
> Buffer I/O error on device sdl9, logical block 193377 
> lost page write due to I/O error on sdl9 
> Buffer I/O error on device sdl9, logical block 193378 
> lost page write due to I/O error on sdl9 
> Buffer I/O error on device sdl9, logical block 193379 
> lost page write due to I/O error on sdl9 
> Buffer I/O error on device sdl9, logical block 193380 
> lost page write due to I/O error on sdl9
> Buffer I/O error on device sdl9, logical block 193381
> lost page write due to I/O error on sdl9
> Buffer I/O error on device sdl9, logical block 193382
> lost page write due to I/O error on sdl9
> Buffer I/O error on device sdl9, logical block 193383
>
> Tia for all advise,
> 	J.
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From - Thu Nov 08 21:02:38 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] fix unwind crash - was: Re: 2.6.26 kernel crash
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To: linux-parisc@vger.kernel.org, Kyle McMartin <kyle@mcmartin.ca>
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Hi Kyle,

I verified, that my attached patch fixes the kernel panic.
Testcase is here: http://gsyprf10.external.hp.com/~deller/crash.tgz
Could you please apply the patch?
Signed-off-by: Helge Deller <deller@gmx.de>

Thanks,
Helge

PS:
arch/parisc/kernel/unwind.c, line 225 looks kinda fishy as well:
225: info->prev_ip = *(unsigned long *)(info->prev_sp - RP_OFFSET);

PPS:
Instead of a kernel panic (which is really annoying since you need to 
reboot the machine) I now get as expected an user fault:

do_page_fault() pid=1846 command='a.out' type=6 address=0x87802043
vm_start = 0x407ff000, vm_end = 0x40802000

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  0004ff0f 407c9f6b 406fbfe3 00012b00
r04-07  fb4ec308 000125b8 407fd534 000e6ba8
r08-11  fb4ec014 00000001 0001264a 000d3b60
r12-15  00000000 000d3b5c 000db4c8 000b0000
r16-19  000d06a0 000b0000 ffffffff 23882000
r20-23  406fc15f 406fc138 87802042 00012d80
r24-27  407fd534 000125b8 407fd534 000125b8
r28-31  00000000 00000000 00012e00 406fbfe3
sr00-03  000007f6 000007f6 00000000 000007f6
sr04-07  000007f6 000007f6 000007f6 000007f6

IASQ: 000007f6 000007f6 IAOQ: 87802043 87802047
  IIR: 43ffff80    ISR: 000007f6  IOR: 407d9adc
  CPU:        0   CR30: 8dbd0000 CR31: d2b345e2
  ORIG_R28: 000107c7
  IAOQ[0]: 0x87802040
  IAOQ[1]: 0x87802044
  RP(r2): 0x406fbfe0
Backtrace:
  [<10120650>] outb+0x64/0x70




Helge Deller wrote:
> I narrowed down to the problematic codepath, and I assume the attached 
> patch might fix it. Problem is, that I can't test without my testcase 
> which is on gsyprf10 (which is unreachable right now), so this patch 
> here is currently a RFC...
> 
> Helge
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> 
> Helge Deller wrote:
>> On Sunday 20 July 2008, Helge Deller wrote:
>>> While debugging some user-space stuff I just faced this 32bit kernel 
>>> crash (2.6.26):
>>> Maybe someone has an idea?
>>
>> This is reproduceable.
>> Testcase and docu is here: 
>> http://gsyprf10.external.hp.com/~deller/crash.tgz
>>
>> Just run:
>> LD_LIBRARY_PATH=.  ./a.out
>>
>> Output is:
>> making contexts
>> swapping contexts
>> start f2
>> &on_stack=0x12d88
>> start f1(a0=1,a1=2,a2=3,a3=fffffffc)
>> <crash>
>>
>> Info:
>> - test program is from glibc:
>>         glibc-2.7/stdlib/tst-setcontext.c
>> - the compiled libc.so.6 includes some changes for *context() 
>> functions from me.
>>
>>  
>>> Kernel Fault: Code=15 regs=5f578640 (Addr=000127ec)
>>>
>>>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>> PSW: 00000000000001001111110000001111 Not tainted
>>> r00-03  0004fc0f 10644f10 1011ee68 5f578288
>>> r04-07  00000014 8c1fe860 8c1fe828 8eb7d030
>>> r08-11  105ee890 00000040 0001264a 000d3b60
>>> r12-15  00000000 000d3b5c 000dde68 000b0000
>>> r16-19  8eb7d250 000b0000 ffffffff 000127ec
>>> r20-23  ffffe040 00000000 101205d4 00000000
>>> r24-27  00012800 101205cc 5f578288 1062ff10
>>> r28-31  00000000 000002ee 5f578640 10120630
>>> sr00-03  00000000 000013a7 00000000 000013a7
>>> sr04-07  00000000 00000000 00000000 00000000
>>>
>>> IASQ: 00000000 00000000 IAOQ: 1011ed04 1011ed08
>>>  IIR: 0e601093    ISR: 00000000  IOR: 000127ec
>>>  CPU:        0   CR30: 5f578000 CR31: ffffffff
>>>  ORIG_R28: 40400000
>>>  IAOQ[0]: unwind_frame_regs+0x214/0x244
>>>  IAOQ[1]: unwind_frame_regs+0x218/0x244
>>>  RP(r2): unwind_once+0x10/0x48
>>> Backtrace:
>>>  [<1011ee68>] unwind_once+0x10/0x48
>>>  [<10112bbc>] do_show_stack+0x28/0xac
>>>  [<10112cd0>] parisc_show_stack+0x90/0xa8
>>>  [<10111258>] do_page_fault+0x174/0x294
>>>  [<10113824>] handle_interruption+0x570/0x58c
>>>  [<10117078>] intr_check_sig+0x0/0x34
>>>
>>> Kernel panic - not syncing: Kernel Fault

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From - Thu Nov 08 21:02:38 2018
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Subject: Re: Cupertino test ring problem?
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On Thu, Jul 31, 2008 at 10:26:24AM -0700, Rick Jones wrote:
...
> I can confirm that gsyperf3 was/is not set to autoboot.  I can also state 
> that it cannot successfully boot.  During POST it spits-out FRU problem 
> messages and during OS boot boatloads of Segmentation Fault output while it 
> tries to boot, and end-up in busybox.

Debian kernel didn't find it's root disk...older kernel I built booted fine.
It's up and I restored the default to a kernel that boots. I can test
other debian kernels on other machines and update gsyprf3 once those
are proven to work.

Rick and I swapped gsyprf3 (1.5Ghz proto CPUs and pre-production mother
board and case) for a production unit (1.3 Ghz CPUs and 8GB of RAM).

> I'm not sure that gsyprf11 (pa) is connected to the external net.

It wasn't and the default debian kernel didn't boot either.
I've set the default kernel to jda's 2.6.22.19 patched kernel.

> I tried swapping the cables on gsyprf10 (the lp1000r)  I have to see if I 
> can find the old monitor and keyboard to see what its boot state happens to 
> be.

again, bad 2.6.24 debian kernel. Rebooting to older (2.6.21) debian
kernel worked. Updated the machine but not willing to try a newer
kernel on this box unless I'm sitting in front of it with a console.

> Grant - wrt times, I'm here all week, from about 0930 to about 0330 each 
> day.  I'd be around later but this week I'm playing single-parent :)

thanks for helping this morning.
Getting the three key systems up was critical.
I can continue to muck with the rest.


cheers,
grant

>
> rick jones
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On Tue, Jul 29, 2008 at 02:26:03PM -0600, Matthew Wilcox wrote:
> On Tue, Jul 29, 2008 at 01:03:10PM -0700, Rick Jones wrote:
> > A couple of the rx2600's were not powered-up, so I've powered them up. 
> > One of the rp34xx's does not seem "happy" and will need further 
> > diagnosis.  If there are other things still "not right" with the ring, 
> > please feel free to let me know the specifics.
> 
> I can't connect to port 22 on any of gsyprf3, gsyprf10 or gsyprf11.

should all be working now.

thanks,
grant

> 
> -- 
> Intel are signing my paycheques ... these opinions are still mine
> "Bill, look, we understand that you're interested in selling us this
> operating system, but compare it to ours.  We can't possibly take such
> a retrograde step."
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Grant Grundler wrote:
> On Mon, Jul 21, 2008 at 02:51:08PM +0000, Joel Soete wrote:
>> Hello all,
>>
>> given this comment:
>>  * Given a virtual address (vba, arg2) and space id, (sid, arg1),
>>  * load the I/O PDIR entry pointed to by pdir_ptr (arg0). Each IO Pdir
>>  * entry consists of 8 bytes as shown below (MSB == bit 0):
> ...
>> and also this:
>>         while (byte_cnt > 0) {
>>                 /* clear I/O Pdir entry "valid" bit first */
>>                 ((unsigned char *) pdir_ptr)[7] = 0;
>>
>> So if I well understand 'Valid' field of a pdir entry is well of 1 bit but 
>> the code cleanup a all byte?
> 
> That's just a convenient way to clobber the bit we care about.
> The fact that the rest of the pdir remains available is irrelevant
> except for debugging (when we might dump IO Pdir to see the history.)
> 
Ok my worry was because other bits of this bytes was related to DMA behaviour of this U2 (Prefetch, Update, Lock, SafeDMA).

>> Is coding something like:
>> #define PTE_VALID_BIT_MASK      0xfffffffffffffffeULL	
>>
>> 		*pdir_ptr &= PTE_VALID_BIT_MASK;
> 
> That's a load/modify store of a 64-bit value.
> That substantially more instructions than a single byte store.
> 
Agree (but I am looking first to make this driver reliable)

>> wouldn't do better what comment says it does?
> 
> Yes, but the comment is just describing what needs to happen, not exactly how.
> The "entry valid" bit just needs to be cleared and it doesn't matter how.
> 
> hth
> grant
> 
Tx,
	J.

PS:
>> Well a short test seems to help but doesn't fix all issue:
>>
No that doesn't help at all :_(
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(Apologize for my earlier html mail - resent in a more proper format)

Helge, your patch doesn't look quite right.

The kernel unwinder is only supposed to be called for kernel
addresses. Kyle says he thinks he knows what is wrong so he's going to
poke at it.

Maybe we can make the kernel unwinder more robust against invalid
addresses passed to it though.

thanks,
randolph

On Tue, Jul 29, 2008 at 1:31 PM, Helge Deller <deller@gmx.de> wrote:
>
> I narrowed down to the problematic codepath, and I assume the attached patch might fix it. Problem is, that I can't test without my testcase which is on gsyprf10 (which is unreachable right now), so this patch here is currently a RFC...
>
> Helge
>
> Signed-off-by: Helge Deller <deller@gmx.de>
>
>
> Helge Deller wrote:
>>
>> On Sunday 20 July 2008, Helge Deller wrote:
>>>
>>> While debugging some user-space stuff I just faced this 32bit kernel crash (2.6.26):
>>> Maybe someone has an idea?
>>
>> This is reproduceable.
>> Testcase and docu is here: http://gsyprf10.external.hp.com/~deller/crash.tgz
>>
>> Just run:
>> LD_LIBRARY_PATH=.  ./a.out
>>
>> Output is:
>> making contexts
>> swapping contexts
>> start f2
>> &on_stack=0x12d88
>> start f1(a0=1,a1=2,a2=3,a3=fffffffc)
>> <crash>
>>
>> Info:
>> - test program is from glibc:
>>        glibc-2.7/stdlib/tst-setcontext.c
>> - the compiled libc.so.6 includes some changes for *context() functions from me.
>>
>>
>>>
>>> Kernel Fault: Code=15 regs=5f578640 (Addr=000127ec)
>>>
>>>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>> PSW: 00000000000001001111110000001111 Not tainted
>>> r00-03  0004fc0f 10644f10 1011ee68 5f578288
>>> r04-07  00000014 8c1fe860 8c1fe828 8eb7d030
>>> r08-11  105ee890 00000040 0001264a 000d3b60
>>> r12-15  00000000 000d3b5c 000dde68 000b0000
>>> r16-19  8eb7d250 000b0000 ffffffff 000127ec
>>> r20-23  ffffe040 00000000 101205d4 00000000
>>> r24-27  00012800 101205cc 5f578288 1062ff10
>>> r28-31  00000000 000002ee 5f578640 10120630
>>> sr00-03  00000000 000013a7 00000000 000013a7
>>> sr04-07  00000000 00000000 00000000 00000000
>>>
>>> IASQ: 00000000 00000000 IAOQ: 1011ed04 1011ed08
>>>  IIR: 0e601093    ISR: 00000000  IOR: 000127ec
>>>  CPU:        0   CR30: 5f578000 CR31: ffffffff
>>>  ORIG_R28: 40400000
>>>  IAOQ[0]: unwind_frame_regs+0x214/0x244
>>>  IAOQ[1]: unwind_frame_regs+0x218/0x244
>>>  RP(r2): unwind_once+0x10/0x48
>>> Backtrace:
>>>  [<1011ee68>] unwind_once+0x10/0x48
>>>  [<10112bbc>] do_show_stack+0x28/0xac
>>>  [<10112cd0>] parisc_show_stack+0x90/0xa8
>>>  [<10111258>] do_page_fault+0x174/0x294
>>>  [<10113824>] handle_interruption+0x570/0x58c
>>>  [<10117078>] intr_check_sig+0x0/0x34
>>>
>>> Kernel panic - not syncing: Kernel Fault
>
> diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
> index 701b2d2..8b4708d 100644
> --- a/arch/parisc/kernel/unwind.c
> +++ b/arch/parisc/kernel/unwind.c
> @@ -341,8 +341,15 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
>                        info->prev_sp = info->sp - frame_size;
>                        if (e->Millicode)
>                                info->rp = info->r31;
> -                       else if (rpoffset)
> -                               info->rp = *(unsigned long *)(info->prev_sp - rpoffset);
> +                       else if (rpoffset) {
> +                               unsigned long tmp;
> +
> +                               if (get_user(tmp,
> +                                      (unsigned long *)(info->prev_sp - rpoffset)))
> +                                       info->rp = 0;
> +                               else
> +                                       info->rp = tmp;
> +                       }
>                        info->prev_ip = info->rp;
>                        info->rp = 0;
>                }
>
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: ccio-dma: is issue could be related to too much io_tlb entries?
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To: Joel Soete <soete.joel@scarlet.be>
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On Thu, Jul 24, 2008 at 02:13:55PM +0100, Joel Soete wrote:
> Hello Grant, Kyle, et al.,
> 
> Iirc the number of io_tlb enties on this u2/uturn ioa is of 256?

ISTR that u2 and uturn have different number of IO TLB entries.
But I don't recall how many exactly. Need the ERSs to look that up.

> Because issue occur only when I do a lot of I/O on scsi disk (sometime request
> of mapping reach 128 pages), the idea was that it could induce some exceed of
> iotlb entries.
> 
> I so turn on some STAT (just used_pages) and grab following data:
> [snip]
> IO PDIR size    : 131072 bytes (16384 entries)
> IO PDIR entries : 16384 total  170 used (16214 free, 1%)
> Resource bitmap : 2048 bytes (16384 pages)
>   Bitmap search : 36221/36430/38793 (min/avg/max CPU Cycles)
> 
> IO PDIR size    : 131072 bytes (16384 entries)
> IO PDIR entries : 16384 total  235 used (16149 free, 1%)
> Resource bitmap : 2048 bytes (16384 pages)
>   Bitmap search : 36220/36346/37806 (min/avg/max CPU Cycles)
> 
> IO PDIR size    : 131072 bytes (16384 entries)
> IO PDIR entries : 16384 total  718 used (15666 free, 4%)
> Resource bitmap : 2048 bytes (16384 pages)
>   Bitmap search : 36222/36342/38472 (min/avg/max CPU Cycles)
> 
> ## issue occurs just when I ready above message.
> 
> IO PDIR size    : 131072 bytes (16384 entries)
> IO PDIR entries : 16384 total  444 used (15940 free, 2%)
> Resource bitmap : 2048 bytes (16384 pages)
>   Bitmap search : 36220/36330/37830 (min/avg/max CPU Cycles)
> [snip]
> 
> Even thought, I ended the stress test, the system continue to work smoothly
> with 444 used entries?

The number of "used" entries include "in flight" DMA and pci_consistent allocations. This generally isn't that many pages of RAM.

> Anyway, difference between those last 2 samples (718 - 444) = 274 increase of
> io_pdir entries.

That's about right for a SCSI device since it can't have that much
IO in flight for one or two disks.

> I also add a loop to bitcount entries of res_map and grab more:
> [snip]
> IO PDIR size    : 262144 bytes (32768 entries)
> IO PDIR entries : 32768 total  329 used (32439 free, 1%)
> IO PDIR entries : 329 res_map_count
> Resource bitmap : 4096 bytes (32768 pages)
>   Bitmap search : 36221/36626/38310 (min/avg/max CPU Cycles)
> 
> IO PDIR size    : 262144 bytes (32768 entries)
> IO PDIR entries : 32768 total  801 used (31967 free, 2%)
> IO PDIR entries : 801 res_map_count
> Resource bitmap : 4096 bytes (32768 pages)
>   Bitmap search : 36215/36325/37852 (min/avg/max CPU Cycles)
> 
> IO PDIR size    : 262144 bytes (32768 entries)
> IO PDIR entries : 32768 total  329 used (32439 free, 1%)
> IO PDIR entries : 329 res_map_count
> Resource bitmap : 4096 bytes (32768 pages)
>   Bitmap search : 36222/36883/38742 (min/avg/max CPU Cycles)
> 
> [...]
> 
> (in 1 second 801 - 329 = 472)
> 
> But continuing a bit test (by accident), I noticed that system can survive with:
> 
> IO PDIR size    : 262144 bytes (32768 entries)
> IO PDIR entries : 32768 total  1478 used (31290 free, 4%)
> IO PDIR entries : 1478 res_map_count
> Resource bitmap : 4096 bytes (32768 pages)
>   Bitmap search : 36223/36696/38463 (min/avg/max CPU Cycles)

Of course. The number of "used" entries in the IO Pdir has no direct
correlation to the number of "in use" IO TLB entries. IO TLB is fixed
size while the IO Pdir size can vary between boots.

> 
> Well as scatterlist is still puzzling me, I can still be confused between
> iommu and mmu pages mapping, sorry so in advance if it's yet another annoying
> comment.

IOMMU is an MMU for IO devices. MMU is the same thing for CPU.
Differences exist between those two. DMA is generally to larger
chunks/regions of RAM (256-2K bytes) while CPUs need to enforce
access rights (X/R/W) to memory and deal with cachelines or less.

hth,
grant
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On Sat, Aug 2, 2008 at 1:31 AM, Grant Grundler
<grundler@parisc-linux.org> wrote:

> It wasn't and the default debian kernel didn't boot either.
> I've set the default kernel to jda's 2.6.22.19 patched kernel.

Is there a source tarball of that, or a list of applied patches? I
would very much like to use that "homebrew" kernel on my cluster as
well, until newer kernels are proven reliable enough...

Thx

T-Bone
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Subject: Re: Cupertino test ring problem?
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> Is there a source tarball of that, or a list of applied patches? I
> would very much like to use that "homebrew" kernel on my cluster as
> well, until newer kernels are proven reliable enough...

I built a tar ball, linux-2.6.22.19-jda.tar.gz.  It is in my home directory
on gsyprf11.  The source is also there.  The most important patch is
compat_sys_getdents.d from Kyle.  The base is linux-2.6.22.19.tar.bz2
from kernel.org.  The .config file was derived from some earlier config
file on this machine (can't remember which).

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Aug 4, 2008 at 5:34 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> Is there a source tarball of that, or a list of applied patches? I
>> would very much like to use that "homebrew" kernel on my cluster as
>> well, until newer kernels are proven reliable enough...
>
> I built a tar ball, linux-2.6.22.19-jda.tar.gz.  It is in my home directory
> on gsyprf11.  The source is also there.  The most important patch is
> compat_sys_getdents.d from Kyle.  The base is linux-2.6.22.19.tar.bz2
> from kernel.org.  The .config file was derived from some earlier config
> file on this machine (can't remember which).

Thanks a lot, I'll fetch that later on!

T-Bone
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From - Thu Nov 08 21:02:39 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Fixed strace [ was Re: ls -l is broken ]
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> On Sun, Apr 06, 2008 at 07:09:59PM -0400, John David Anglin wrote:
> > > If you strace it, what syscall returns -EOPNOTSUPP?
> > 
> > strace is broken and quits before the relevant syscall.  Think I
> > mentioned this before is a different context.
> > 
> 
> Fixed & updated strace available at
> http://people.debian.org/~kyle/strace/

lgetxattr("strace_4.5.16-1_hppa.deb", "security.selinux"..., 0x2c768, 255) = -1 EOPNOTSUPP 
(Operation not supported)

This is probably the correct return but the manpage for lgetxattr says
it should return ENOTSUP.  Possibly, the problem occurs on hppa because
ENOTSUP and EOPNOTSUPP are different codes.  In any case, the current
version of ls only checks for ENOTSUP.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:02:39 2018
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From: "Joel Soete" <soete.joel@scarlet.be>
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Subject: Re: ccio-dma: is issue could be related to too much io_tlb entries?
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> On Thu, Jul 24, 2008 at 02:13:55PM +0100, Joel Soete wrote:
> > Hello Grant, Kyle, et al.,
> > 
> > Iirc the number of io_tlb enties on this u2/uturn ioa is of 256?
> 
> ISTR that u2 and uturn have different number of IO TLB entries.
> But I don't recall how many exactly. Need the ERSs to look that up.
> 
Well, I don't yet find the right way to get access, sorry.

> > Because issue occur only when I do a lot of I/O on scsi disk (sometime request
> > of mapping reach 128 pages), the idea was that it could induce some exceed of
> > iotlb entries.
> > 
[snip]
> 
> The number of "used" entries include "in flight" DMA and pci_consistent
allocations. This generally isn't that many pages of RAM.
> 
Ok,
But the idea was that if so much pdir entries was mapped in a so short time
(1s), it should be also that the device will try to use them on the fly (just
an hypothesis.)
And so far as I can observe, the pb occurs when os operate on numerous huge
data blocks (i.e. a tar -xvf of a linux tree into a single fs); so in this
case it should be that the i/o device trigger many i/o tlb miss and may be
much more i/o tlb entries then it can be freed?
What I observe also is that the pb become worse either with a system with few
ram (like my c110 with 64M) or when I resurrect CCIO_MEM_RATIO (e.g. 2 or 4)
on a system with 256Mb of RAM). In those last 2 cases the effect is the same:
  a/ it makes the pdir_size and the number of pdir entries smaller
  b/ as well for chainid_shift.

This last point (b/) make me thought that it would also make smaller the
number of 4k-byte per chainid and so for a same DMA block size it would
required more iotlb entries.

Obviously just speculation ;<).

Even thought 3 things sure: 
  - issue occurs for huge I/O
  - become worse with reduced iov_space_size (physical or logical)
  - backport sba help a bit but doesn't fix issue      

> > Anyway, difference between those last 2 samples (718 - 444) = 274 increase of
> > io_pdir entries.
> 
> That's about right for a SCSI device since it can't have that much
> IO in flight for one or two disks.
> 
[snip]
> 
> Of course. The number of "used" entries in the IO Pdir has no direct
> correlation to the number of "in use" IO TLB entries. IO TLB is fixed
> size while the IO Pdir size can vary between boots.
> 
> > 
> > Well as scatterlist is still puzzling me, I can still be confused between
> > iommu and mmu pages mapping, sorry so in advance if it's yet another annoying
> > comment.
> 
> IOMMU is an MMU for IO devices. MMU is the same thing for CPU.
> Differences exist between those two. DMA is generally to larger
> chunks/regions of RAM (256-2K bytes) while CPUs need to enforce
> access rights (X/R/W) to memory and deal with cachelines or less.
> 
(well I still have difficulties in the relationship between all those buffers
which are caches and tlb and over that I/O DMA with its own set of cache and
iotlb. Fortunately there are now good doc freely available and good engine to
look for it, but it's not yet so easy to me)

Tx again for advises,
    J.

> hth,
> grant
> --


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From - Thu Nov 08 21:02:39 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: X won't start with VisEG and 2.6.22.19
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> > It wasn't and the default debian kernel didn't boot either.
> > I've set the default kernel to jda's 2.6.22.19 patched kernel.
> 
> Is there a source tarball of that, or a list of applied patches? I
> would very much like to use that "homebrew" kernel on my cluster as
> well, until newer kernels are proven reliable enough...

I should mention that I've had a problem with starting X with lenny
and 2.6.22.  This has been a problem for sometime.  I've tried simplifying
the xorg.conf file and adding the mode helper to the kernel, but I
haven't found the magic incantation that works.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--/9DWx/yDrRhgMJTb
Content-Type: text/plain; charset=us-ascii
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# xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
	Option		"Emulate3Buttons"	"true"
EndSection

Section "Device"
	Identifier	"HP VisEG"
	Driver		"fbdev"
	BusID		"PCI:2:3:0"
#	Option		"UseFBDev"		"true"
EndSection

Section "Monitor"
	Identifier	"NEC LCD1980SX"
	Option		"DPMS"			"true"
	HorizSync	20-107
	VertRefresh	50-85
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"HP VisEG"
	Monitor		"NEC LCD1980SX"
	DefaultDepth	8
#	SubSection "Display"
#		Modes		"1280x1024"
#	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
EndSection

Section "ServerFlags"
	Option "AIGLX"	"false"
#	Option "DisableVidModeExtension"  "true"
#	Option "NoTrapSignals"  "true"
EndSection

--/9DWx/yDrRhgMJTb
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="Xorg.0.log"


X.Org X Server 1.4.2
Release Date: 11 June 2008
X Protocol Version 11, Revision 0
Build Operating System: Linux Debian (xorg-server 2:1.4.2-2)
Current Operating System: Linux hiauly6 2.6.22.19 #17 Tue Aug 5 18:17:30 EDT 2008 parisc
Build Date: 22 July 2008  02:19:19PM
 
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Tue Aug  5 18:23:03 2008
(==) Using config file: "/etc/X11/xorg.conf"
(==) ServerLayout "Default Layout"
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "NEC LCD1980SX"
(**) |   |-->Device "HP VisEG"
(**) |-->Input Device "Generic Keyboard"
(**) |-->Input Device "Configured Mouse"
(**) Option "AIGLX" "false"
(==) Automatically adding devices
(==) Automatically enabling devices
(==) FontPath set to:
	/usr/share/fonts/X11/misc,
	/usr/share/fonts/X11/cyrillic,
	/usr/share/fonts/X11/100dpi/:unscaled,
	/usr/share/fonts/X11/75dpi/:unscaled,
	/usr/share/fonts/X11/Type1,
	/usr/share/fonts/X11/100dpi,
	/usr/share/fonts/X11/75dpi,
	/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType
(==) RgbPath set to "/etc/X11/rgb"
(==) ModulePath set to "/usr/lib/xorg/modules"
(II) No APM support in BIOS or kernel
(II) Loader magic: 0x1cbcd4
(II) Module ABI versions:
	X.Org ANSI C Emulation: 0.3
	X.Org Video Driver: 2.0
	X.Org XInput driver : 2.0
	X.Org Server Extension : 0.3
	X.Org Font Renderer : 0.5
(II) Loader running on linux
(II) LoadModule: "pcidata"
(II) Loading /usr/lib/xorg/modules//libpcidata.so
(II) Module pcidata: vendor="X.Org Foundation"
	compiled for 1.4.2, module version = 1.0.0
	ABI class: X.Org Video Driver, version 2.0
(++) using VT number 7

(II) PCI: PCI scan (all values are in hex)
(II) PCI: 00:0c:0: chip 1011,0019 card 103c,104f rev 41 class 02,00,00 hdr 00
(II) PCI: 00:0d:0: chip 11d4,1889 card 11d4,1889 rev 00 class 04,01,00 hdr 00
(II) PCI: 00:0e:0: chip 100b,0002 card 0000,0000 rev 03 class 01,01,8f hdr 80
(II) PCI: 00:0e:1: chip 100b,000e card 0000,0000 rev 01 class 06,80,00 hdr 80
(II) PCI: 00:0e:2: chip 100b,0012 card 0000,0000 rev 02 class 0c,03,10 hdr 80
(II) PCI: 00:0f:0: chip 1000,000b card 1000,1000 rev 07 class 01,00,00 hdr 80
(II) PCI: 00:0f:1: chip 1000,000b card 1000,1000 rev 07 class 01,00,00 hdr 80
(II) PCI: 01:06:0: chip 1000,0021 card 1000,1070 rev 01 class 01,00,00 hdr 80
(II) PCI: 01:06:1: chip 1000,0021 card 1000,1070 rev 01 class 01,00,00 hdr 80
(II) PCI: 02:03:0: chip 103c,1005 card 0000,0000 rev 03 class 03,80,00 hdr 00
(II) PCI: End of PCI scan
(II) Host-to-PCI bridge:
(II) Bus 0: bridge is at (0:0:0), (0,0,0), BCTRL: 0x0008 (VGA_EN is set)
(II) Bus 0 I/O range:
	[0] -1	0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 0 non-prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 0 prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Host-to-PCI bridge:
(II) Bus 1: bridge is at (0:0:0), (1,1,0), BCTRL: 0x0008 (VGA_EN is set)
(II) Bus 1 I/O range:
	[0] -1	0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 1 non-prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 1 prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Host-to-PCI bridge:
(II) Bus 2: bridge is at (0:0:0), (2,2,0), BCTRL: 0x0008 (VGA_EN is set)
(II) Bus 2 I/O range:
	[0] -1	0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 2 non-prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 2 prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(--) PCI:*(2:3:0) Hewlett-Packard Company A4977A Visualize EG rev 3, Mem @ 0xfa000000/25, BIOS @ 0xf6000000/16
(II) Addressable bus resource ranges are
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
	[1] -1	0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) OS-reported resource ranges:
	[0] -1	0	0x00100000 - 0x3fffffff (0x3ff00000) MX[B]E(B)
	[1] -1	0	0x000f0000 - 0x000fffff (0x10000) MX[B]
	[2] -1	0	0x000c0000 - 0x000effff (0x30000) MX[B]
	[3] -1	0	0x00000000 - 0x0009ffff (0xa0000) MX[B]
	[4] -1	0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[5] -1	0	0x00000000 - 0x000000ff (0x100) IX[B]
(II) Active PCI resource ranges:
	[0] -1	0	0xf4800000 - 0xf4801fff (0x2000) MX[B]
	[1] -1	0	0xf4804000 - 0xf48043ff (0x400) MX[B]
	[2] -1	0	0xf4802000 - 0xf4803fff (0x2000) MX[B]
	[3] -1	0	0xf4805000 - 0xf48053ff (0x400) MX[B]
	[4] -1	0	0xf4000000 - 0xf4001fff (0x2000) MX[B]
	[5] -1	0	0xf4004000 - 0xf40043ff (0x400) MX[B]
	[6] -1	0	0xf4002000 - 0xf4003fff (0x2000) MX[B]
	[7] -1	0	0xf4005000 - 0xf40053ff (0x400) MX[B]
	[8] -1	0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[9] -1	0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[10] -1	0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[11] -1	0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[12] -1	0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[13] -1	0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[14] -1	0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[15] -1	0	0xf6000000 - 0xf600ffff (0x10000) MX[B](B)
	[16] -1	0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[17] -1	0	0x00012000 - 0x000120ff (0x100) IX[B]
	[18] -1	0	0x00012100 - 0x000121ff (0x100) IX[B]
	[19] -1	0	0x00000800 - 0x000008ff (0x100) IX[B]
	[20] -1	0	0x00000900 - 0x000009ff (0x100) IX[B]
	[21] -1	0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[22] -1	0	0x00000b00 - 0x00000b03 (0x4) IX[B]
	[23] -1	0	0x00000d00 - 0x00000d07 (0x8) IX[B]
	[24] -1	0	0x00000e00 - 0x00000e03 (0x4) IX[B]
	[25] -1	0	0x00000f00 - 0x00000f07 (0x8) IX[B]
	[26] -1	0	0x00001000 - 0x0000107f (0x80) IX[B]
(II) Active PCI resource ranges after removing overlaps:
	[0] -1	0	0xf4800000 - 0xf4801fff (0x2000) MX[B]
	[1] -1	0	0xf4804000 - 0xf48043ff (0x400) MX[B]
	[2] -1	0	0xf4802000 - 0xf4803fff (0x2000) MX[B]
	[3] -1	0	0xf4805000 - 0xf48053ff (0x400) MX[B]
	[4] -1	0	0xf4000000 - 0xf4001fff (0x2000) MX[B]
	[5] -1	0	0xf4004000 - 0xf40043ff (0x400) MX[B]
	[6] -1	0	0xf4002000 - 0xf4003fff (0x2000) MX[B]
	[7] -1	0	0xf4005000 - 0xf40053ff (0x400) MX[B]
	[8] -1	0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[9] -1	0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[10] -1	0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[11] -1	0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[12] -1	0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[13] -1	0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[14] -1	0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[15] -1	0	0xf6000000 - 0xf600ffff (0x10000) MX[B](B)
	[16] -1	0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[17] -1	0	0x00012000 - 0x000120ff (0x100) IX[B]
	[18] -1	0	0x00012100 - 0x000121ff (0x100) IX[B]
	[19] -1	0	0x00000800 - 0x000008ff (0x100) IX[B]
	[20] -1	0	0x00000900 - 0x000009ff (0x100) IX[B]
	[21] -1	0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[22] -1	0	0x00000b00 - 0x00000b03 (0x4) IX[B]
	[23] -1	0	0x00000d00 - 0x00000d07 (0x8) IX[B]
	[24] -1	0	0x00000e00 - 0x00000e03 (0x4) IX[B]
	[25] -1	0	0x00000f00 - 0x00000f07 (0x8) IX[B]
	[26] -1	0	0x00001000 - 0x0000107f (0x80) IX[B]
(II) OS-reported resource ranges after removing overlaps with PCI:
	[0] -1	0	0x00100000 - 0x3fffffff (0x3ff00000) MX[B]E(B)
	[1] -1	0	0x000f0000 - 0x000fffff (0x10000) MX[B]
	[2] -1	0	0x000c0000 - 0x000effff (0x30000) MX[B]
	[3] -1	0	0x00000000 - 0x0009ffff (0xa0000) MX[B]
	[4] -1	0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[5] -1	0	0x00000000 - 0x000000ff (0x100) IX[B]
(II) All system resource ranges:
	[0] -1	0	0x00100000 - 0x3fffffff (0x3ff00000) MX[B]E(B)
	[1] -1	0	0x000f0000 - 0x000fffff (0x10000) MX[B]
	[2] -1	0	0x000c0000 - 0x000effff (0x30000) MX[B]
	[3] -1	0	0x00000000 - 0x0009ffff (0xa0000) MX[B]
	[4] -1	0	0xf4800000 - 0xf4801fff (0x2000) MX[B]
	[5] -1	0	0xf4804000 - 0xf48043ff (0x400) MX[B]
	[6] -1	0	0xf4802000 - 0xf4803fff (0x2000) MX[B]
	[7] -1	0	0xf4805000 - 0xf48053ff (0x400) MX[B]
	[8] -1	0	0xf4000000 - 0xf4001fff (0x2000) MX[B]
	[9] -1	0	0xf4004000 - 0xf40043ff (0x400) MX[B]
	[10] -1	0	0xf4002000 - 0xf4003fff (0x2000) MX[B]
	[11] -1	0	0xf4005000 - 0xf40053ff (0x400) MX[B]
	[12] -1	0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[13] -1	0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[14] -1	0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[15] -1	0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[16] -1	0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[17] -1	0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[18] -1	0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[19] -1	0	0xf6000000 - 0xf600ffff (0x10000) MX[B](B)
	[20] -1	0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[21] -1	0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[22] -1	0	0x00000000 - 0x000000ff (0x100) IX[B]
	[23] -1	0	0x00012000 - 0x000120ff (0x100) IX[B]
	[24] -1	0	0x00012100 - 0x000121ff (0x100) IX[B]
	[25] -1	0	0x00000800 - 0x000008ff (0x100) IX[B]
	[26] -1	0	0x00000900 - 0x000009ff (0x100) IX[B]
	[27] -1	0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[28] -1	0	0x00000b00 - 0x00000b03 (0x4) IX[B]
	[29] -1	0	0x00000d00 - 0x00000d07 (0x8) IX[B]
	[30] -1	0	0x00000e00 - 0x00000e03 (0x4) IX[B]
	[31] -1	0	0x00000f00 - 0x00000f07 (0x8) IX[B]
	[32] -1	0	0x00001000 - 0x0000107f (0x80) IX[B]
(II) LoadModule: "extmod"
(II) Loading /usr/lib/xorg/modules/extensions//libextmod.so
(II) Module extmod: vendor="X.Org Foundation"
	compiled for 1.4.2, module version = 1.0.0
	Module class: X.Org Server Extension
	ABI class: X.Org Server Extension, version 0.3
(II) Loading extension SHAPE
(II) Loading extension MIT-SUNDRY-NONSTANDARD
(II) Loading extension BIG-REQUESTS
(II) Loading extension SYNC
(II) Loading extension MIT-SCREEN-SAVER
(II) Loading extension XC-MISC
(II) Loading extension XFree86-VidModeExtension
(II) Loading extension XFree86-Misc
(II) Loading extension XFree86-DGA
(II) Loading extension DPMS
(II) Loading extension TOG-CUP
(II) Loading extension Extended-Visual-Information
(II) Loading extension XVideo
(II) Loading extension XVideo-MotionCompensation
(II) Loading extension X-Resource
(II) LoadModule: "dbe"
(II) Loading /usr/lib/xorg/modules/extensions//libdbe.so
(II) Module dbe: vendor="X.Org Foundation"
	compiled for 1.4.2, module version = 1.0.0
	Module class: X.Org Server Extension
	ABI class: X.Org Server Extension, version 0.3
(II) Loading extension DOUBLE-BUFFER
(II) LoadModule: "glx"
(II) Loading /usr/lib/xorg/modules/extensions//libglx.so
(II) Module glx: vendor="X.Org Foundation"
	compiled for 1.4.2, module version = 1.0.0
	ABI class: X.Org Server Extension, version 0.3
(**) AIGLX disabled
(II) Loading extension GLX
(II) LoadModule: "freetype"
(II) Loading /usr/lib/xorg/modules//fonts/libfreetype.so
(II) Module freetype: vendor="X.Org Foundation & the After X-TT Project"
	compiled for 1.4.2, module version = 2.1.0
	Module class: X.Org Font Renderer
	ABI class: X.Org Font Renderer, version 0.5
(II) Loading font FreeType
(II) LoadModule: "record"
(II) Loading /usr/lib/xorg/modules/extensions//librecord.so
(II) Module record: vendor="X.Org Foundation"
	compiled for 1.4.2, module version = 1.13.0
	Module class: X.Org Server Extension
	ABI class: X.Org Server Extension, version 0.3
(II) Loading extension RECORD
(II) LoadModule: "dri"
(II) Loading /usr/lib/xorg/modules/extensions//libdri.so
(II) Module dri: vendor="X.Org Foundation"
	compiled for 1.4.2, module version = 1.0.0
	ABI class: X.Org Server Extension, version 0.3
(II) Loading extension XFree86-DRI
(II) LoadModule: "fbdev"
(II) Loading /usr/lib/xorg/modules/drivers//fbdev_drv.so
(II) Module fbdev: vendor="X.Org Foundation"
	compiled for 1.4.0.90, module version = 0.4.0
	ABI class: X.Org Video Driver, version 2.0
(II) LoadModule: "kbd"
(II) Loading /usr/lib/xorg/modules/input//kbd_drv.so
(II) Module kbd: vendor="X.Org Foundation"
	compiled for 1.4.0.90, module version = 1.3.1
	Module class: X.Org XInput Driver
	ABI class: X.Org XInput driver, version 2.0
(II) LoadModule: "mouse"
(II) Loading /usr/lib/xorg/modules/input//mouse_drv.so
(II) Module mouse: vendor="X.Org Foundation"
	compiled for 1.4.0.90, module version = 1.3.0
	Module class: X.Org XInput Driver
	ABI class: X.Org XInput driver, version 2.0
(II) FBDEV: driver for framebuffer: fbdev
(II) Primary Device is: PCI 02:03:0
(II) Loading sub module "fbdevhw"
(II) LoadModule: "fbdevhw"
(II) Loading /usr/lib/xorg/modules/linux//libfbdevhw.so
(II) Module fbdevhw: vendor="X.Org Foundation"
	compiled for 1.4.2, module version = 0.0.2
	ABI class: X.Org Video Driver, version 2.0
(II) resource ranges after xf86ClaimFixedResources() call:
	[0] -1	0	0x00100000 - 0x3fffffff (0x3ff00000) MX[B]E(B)
	[1] -1	0	0x000f0000 - 0x000fffff (0x10000) MX[B]
	[2] -1	0	0x000c0000 - 0x000effff (0x30000) MX[B]
	[3] -1	0	0x00000000 - 0x0009ffff (0xa0000) MX[B]
	[4] -1	0	0xf4800000 - 0xf4801fff (0x2000) MX[B]
	[5] -1	0	0xf4804000 - 0xf48043ff (0x400) MX[B]
	[6] -1	0	0xf4802000 - 0xf4803fff (0x2000) MX[B]
	[7] -1	0	0xf4805000 - 0xf48053ff (0x400) MX[B]
	[8] -1	0	0xf4000000 - 0xf4001fff (0x2000) MX[B]
	[9] -1	0	0xf4004000 - 0xf40043ff (0x400) MX[B]
	[10] -1	0	0xf4002000 - 0xf4003fff (0x2000) MX[B]
	[11] -1	0	0xf4005000 - 0xf40053ff (0x400) MX[B]
	[12] -1	0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[13] -1	0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[14] -1	0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[15] -1	0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[16] -1	0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[17] -1	0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[18] -1	0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[19] -1	0	0xf6000000 - 0xf600ffff (0x10000) MX[B](B)
	[20] -1	0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[21] -1	0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[22] -1	0	0x00000000 - 0x000000ff (0x100) IX[B]
	[23] -1	0	0x00012000 - 0x000120ff (0x100) IX[B]
	[24] -1	0	0x00012100 - 0x000121ff (0x100) IX[B]
	[25] -1	0	0x00000800 - 0x000008ff (0x100) IX[B]
	[26] -1	0	0x00000900 - 0x000009ff (0x100) IX[B]
	[27] -1	0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[28] -1	0	0x00000b00 - 0x00000b03 (0x4) IX[B]
	[29] -1	0	0x00000d00 - 0x00000d07 (0x8) IX[B]
	[30] -1	0	0x00000e00 - 0x00000e03 (0x4) IX[B]
	[31] -1	0	0x00000f00 - 0x00000f07 (0x8) IX[B]
	[32] -1	0	0x00001000 - 0x0000107f (0x80) IX[B]
(**) FBDEV(0): claimed PCI slot 2:3:0
(II) FBDEV(0): using default device
(II) resource ranges after probing:
	[0] -1	0	0x00100000 - 0x3fffffff (0x3ff00000) MX[B]E(B)
	[1] -1	0	0x000f0000 - 0x000fffff (0x10000) MX[B]
	[2] -1	0	0x000c0000 - 0x000effff (0x30000) MX[B]
	[3] -1	0	0x00000000 - 0x0009ffff (0xa0000) MX[B]
	[4] -1	0	0xf4800000 - 0xf4801fff (0x2000) MX[B]
	[5] -1	0	0xf4804000 - 0xf48043ff (0x400) MX[B]
	[6] -1	0	0xf4802000 - 0xf4803fff (0x2000) MX[B]
	[7] -1	0	0xf4805000 - 0xf48053ff (0x400) MX[B]
	[8] -1	0	0xf4000000 - 0xf4001fff (0x2000) MX[B]
	[9] -1	0	0xf4004000 - 0xf40043ff (0x400) MX[B]
	[10] -1	0	0xf4002000 - 0xf4003fff (0x2000) MX[B]
	[11] -1	0	0xf4005000 - 0xf40053ff (0x400) MX[B]
	[12] -1	0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[13] -1	0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[14] -1	0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[15] -1	0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[16] -1	0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[17] -1	0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[18] -1	0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[19] -1	0	0xf6000000 - 0xf600ffff (0x10000) MX[B](B)
	[20] -1	0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[21] 0	0	0x000a0000 - 0x000affff (0x10000) MS[B]
	[22] 0	0	0x000b0000 - 0x000b7fff (0x8000) MS[B]
	[23] 0	0	0x000b8000 - 0x000bffff (0x8000) MS[B]
	[24] -1	0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[25] -1	0	0x00000000 - 0x000000ff (0x100) IX[B]
	[26] -1	0	0x00012000 - 0x000120ff (0x100) IX[B]
	[27] -1	0	0x00012100 - 0x000121ff (0x100) IX[B]
	[28] -1	0	0x00000800 - 0x000008ff (0x100) IX[B]
	[29] -1	0	0x00000900 - 0x000009ff (0x100) IX[B]
	[30] -1	0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[31] -1	0	0x00000b00 - 0x00000b03 (0x4) IX[B]
	[32] -1	0	0x00000d00 - 0x00000d07 (0x8) IX[B]
	[33] -1	0	0x00000e00 - 0x00000e03 (0x4) IX[B]
	[34] -1	0	0x00000f00 - 0x00000f07 (0x8) IX[B]
	[35] -1	0	0x00001000 - 0x0000107f (0x80) IX[B]
	[36] 0	0	0x000003b0 - 0x000003bb (0xc) IS[B]
	[37] 0	0	0x000003c0 - 0x000003df (0x20) IS[B]
(II) Setting vga for screen 0.
(II) FBDEV(0): Creating default Display subsection in Screen section
	"Default Screen" for depth/fbbpp 8/8
(**) FBDEV(0): Depth 8, (--) framebuffer bpp 8
(==) FBDEV(0): Default visual is PseudoColor
(==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDEV(0): hardware: stifb (video memory: 2048kB)
(II) FBDEV(0): checking modes against framebuffer device...
(II) FBDEV(0): checking modes against monitor...
(--) FBDEV(0): Virtual size is 1280x1024 (pitch 1280)
(**) FBDEV(0):  Built-in mode "current": 28000.0 MHz, 21875.0 kHz, 21362.3 Hz
(II) FBDEV(0): Modeline "current"x0.0  28000.00  1280 1280 1280 1280  1024 1024 1024 1024 -hsync -vsync -csync (21875.0 kHz)
(==) FBDEV(0): DPI set to (96, 96)
(II) Loading sub module "fb"
(II) LoadModule: "fb"
(II) Loading /usr/lib/xorg/modules//libfb.so
(II) Module fb: vendor="X.Org Foundation"
	compiled for 1.4.2, module version = 1.0.0
	ABI class: X.Org ANSI C Emulation, version 0.3
(**) FBDEV(0): using shadow framebuffer
(II) Loading sub module "shadow"
(II) LoadModule: "shadow"
(II) Loading /usr/lib/xorg/modules//libshadow.so
(II) Module shadow: vendor="X.Org Foundation"
	compiled for 1.4.2, module version = 1.1.0
	ABI class: X.Org ANSI C Emulation, version 0.3
(II) do I need RAC?  No, I don't.
(II) resource ranges after preInit:
	[0] 0	0	0xfa000000 - 0xfbffffff (0x2000000) MX[B]
	[1] -1	0	0x00100000 - 0x3fffffff (0x3ff00000) MX[B]E(B)
	[2] -1	0	0x000f0000 - 0x000fffff (0x10000) MX[B]
	[3] -1	0	0x000c0000 - 0x000effff (0x30000) MX[B]
	[4] -1	0	0x00000000 - 0x0009ffff (0xa0000) MX[B]
	[5] -1	0	0xf4800000 - 0xf4801fff (0x2000) MX[B]
	[6] -1	0	0xf4804000 - 0xf48043ff (0x400) MX[B]
	[7] -1	0	0xf4802000 - 0xf4803fff (0x2000) MX[B]
	[8] -1	0	0xf4805000 - 0xf48053ff (0x400) MX[B]
	[9] -1	0	0xf4000000 - 0xf4001fff (0x2000) MX[B]
	[10] -1	0	0xf4004000 - 0xf40043ff (0x400) MX[B]
	[11] -1	0	0xf4002000 - 0xf4003fff (0x2000) MX[B]
	[12] -1	0	0xf4005000 - 0xf40053ff (0x400) MX[B]
	[13] -1	0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[14] -1	0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[15] -1	0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[16] -1	0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[17] -1	0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[18] -1	0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[19] -1	0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[20] -1	0	0xf6000000 - 0xf600ffff (0x10000) MX[B](B)
	[21] -1	0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[22] 0	0	0x000a0000 - 0x000affff (0x10000) MS[B]
	[23] 0	0	0x000b0000 - 0x000b7fff (0x8000) MS[B]
	[24] 0	0	0x000b8000 - 0x000bffff (0x8000) MS[B]
	[25] -1	0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[26] -1	0	0x00000000 - 0x000000ff (0x100) IX[B]
	[27] -1	0	0x00012000 - 0x000120ff (0x100) IX[B]
	[28] -1	0	0x00012100 - 0x000121ff (0x100) IX[B]
	[29] -1	0	0x00000800 - 0x000008ff (0x100) IX[B]
	[30] -1	0	0x00000900 - 0x000009ff (0x100) IX[B]
	[31] -1	0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[32] -1	0	0x00000b00 - 0x00000b03 (0x4) IX[B]
	[33] -1	0	0x00000d00 - 0x00000d07 (0x8) IX[B]
	[34] -1	0	0x00000e00 - 0x00000e03 (0x4) IX[B]
	[35] -1	0	0x00000f00 - 0x00000f07 (0x8) IX[B]
	[36] -1	0	0x00001000 - 0x0000107f (0x80) IX[B]
	[37] 0	0	0x000003b0 - 0x000003bb (0xc) IS[B]
	[38] 0	0	0x000003c0 - 0x000003df (0x20) IS[B]
(EE) FBDEV(0): FBIOPUT_VSCREENINFO succeeded but modified mode
(EE) FBDEV(0): mode initialization failed

Fatal server error:
AddScreen/ScreenInit failed for driver 0


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From - Thu Nov 08 21:02:39 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: ccio-dma: is issue could be related to too much io_tlb entries?
Date: Tue, 5 Aug 2008 21:19:36 -0600
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Cc: grundler <grundler@parisc-linux.org>, kyle <kyle@mcmartin.ca>,
	linux-parisc <linux-parisc@vger.kernel.org>
To: Joel Soete <soete.joel@scarlet.be>
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On Tue, Aug 05, 2008 at 03:21:32PM +0100, Joel Soete wrote:
> > On Thu, Jul 24, 2008 at 02:13:55PM +0100, Joel Soete wrote:
> > > Hello Grant, Kyle, et al.,
> > >
> > > Iirc the number of io_tlb enties on this u2/uturn ioa is of 256?
> >
> > ISTR that u2 and uturn have different number of IO TLB entries.
> > But I don't recall how many exactly. Need the ERSs to look that up.
> >
> Well, I don't yet find the right way to get access, sorry.
> 
> > > Because issue occur only when I do a lot of I/O on scsi disk (sometime request
> > > of mapping reach 128 pages), the idea was that it could induce some exceed of
> > > iotlb entries.
> > >
> [snip]
> >
> > The number of "used" entries include "in flight" DMA and pci_consistent
> allocations. This generally isn't that many pages of RAM.
> >
> Ok,
> But the idea was that if so much pdir entries was mapped in a so short time
> (1s), it should be also that the device will try to use them on the fly (just
> an hypothesis.)
> And so far as I can observe, the pb occurs when os operate on numerous huge
> data blocks (i.e. a tar -xvf of a linux tree into a single fs); so in this
> case it should be that the i/o device trigger many i/o tlb miss and may be
> much more i/o tlb entries then it can be freed?

Yes, that's certainly possible. 
But it's not the only behavior triggered by lots of in-flight IO traffic.


> What I observe also is that the pb become worse either with a system with few
> ram (like my c110 with 64M) or when I resurrect CCIO_MEM_RATIO (e.g. 2 or 4)
> on a system with 256Mb of RAM). In those last 2 cases the effect is the same:
>   a/ it makes the pdir_size and the number of pdir entries smaller

Yes.

>   b/ as well for chainid_shift.

I've forgotten exactly the role of the chainid...I'd have to study
the code again.


> This last point (b/) make me thought that it would also make smaller the
> number of 4k-byte per chainid and so for a same DMA block size it would
> required more iotlb entries.

No. The number of IO TLB entries (192 or something like that) and IO MMU
page size (4k) are both fixed.
Both are also completely unrelated to the size of the IO Pdir.

> 
> Obviously just speculation ;<).
> 
> Even thought 3 things sure:
>   - issue occurs for huge I/O
>   - become worse with reduced iov_space_size (physical or logical)
>   - backport sba help a bit but doesn't fix issue

Yeah, those suggest IO TLB flushing is failing or IO Pdir isn't coherent.
There might be other things broken too.

> > > Anyway, difference between those last 2 samples (718 - 444) = 274 increase of
> > > io_pdir entries.
> >
> > That's about right for a SCSI device since it can't have that much
> > IO in flight for one or two disks.
> >
> [snip]
> >
> > Of course. The number of "used" entries in the IO Pdir has no direct
> > correlation to the number of "in use" IO TLB entries. IO TLB is fixed
> > size while the IO Pdir size can vary between boots.
> >
> > >
> > > Well as scatterlist is still puzzling me, I can still be confused between
> > > iommu and mmu pages mapping, sorry so in advance if it's yet another annoying
> > > comment.
> >
> > IOMMU is an MMU for IO devices. MMU is the same thing for CPU.
> > Differences exist between those two. DMA is generally to larger
> > chunks/regions of RAM (256-2K bytes) while CPUs need to enforce
> > access rights (X/R/W) to memory and deal with cachelines or less.
> >
> (well I still have difficulties in the relationship between all those buffers
> which are caches and tlb and over that I/O DMA with its own set of cache and
> iotlb. Fortunately there are now good doc freely available and good engine to
> look for it, but it's not yet so easy to me)

Agreed - it's not easy.

grant

> 
> Tx again for advises,
>     J.
> 
> > hth,
> > grant
> > --
> 
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From - Thu Nov 08 21:02:39 2018
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Subject: Re: X won't start with VisEG and 2.6.22.19
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Cc: dave@hiauly1.hia.nrc.ca, Thibaut VARENE <T-Bone@parisc-linux.org>,
	Grant Grundler <grundler@parisc-linux.org>,
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To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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Hi Dave,

This has been introduced in latest Xorg. When it modify the fb device,
Xorg query the kernel again to make sure changes are the expected ones.
Apparently, stifb doesn't return what it was expecting.

You'll find the Xorg code in hw/xfree86/fbdevhw/fbdevhw.c,
fbdevHWSetMode().


Cheers,
  Guy


On Tue, 5 Aug 2008 21:42:08 -0400
John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:

> > > It wasn't and the default debian kernel didn't boot either.
> > > I've set the default kernel to jda's 2.6.22.19 patched kernel.
> > 
> > Is there a source tarball of that, or a list of applied patches? I
> > would very much like to use that "homebrew" kernel on my cluster as
> > well, until newer kernels are proven reliable enough...
> 
> I should mention that I've had a problem with starting X with lenny
> and 2.6.22.  This has been a problem for sometime.  I've tried
> simplifying the xorg.conf file and adding the mode helper to the
> kernel, but I haven't found the magic incantation that works.
> 
> Dave


-- 
Guy Martin
Gentoo Linux - HPPA port lead
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
	Kyle McMartin <kyle@mcmartin.ca>
To: Randolph Chung <randolph@tausq.org>
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On Sun, Aug 03, 2008 at 07:26:48AM -0700, Randolph Chung wrote:
> (Apologize for my earlier html mail - resent in a more proper format)
> 
> Helge, your patch doesn't look quite right.
> 
> The kernel unwinder is only supposed to be called for kernel
> addresses. Kyle says he thinks he knows what is wrong so he's going to
> poke at it.
> 
> Maybe we can make the kernel unwinder more robust against invalid
> addresses passed to it though.
> 

I think this will fix the problem, though I should audit show_stack
callers to make sure.

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 675f1d0..721d281 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -121,11 +121,12 @@ static void print_fr(char *level, struct pt_regs *regs)
 
 void show_regs(struct pt_regs *regs)
 {
-	int i;
+	int i, user;
 	char *level;
 	unsigned long cr30, cr31;
 
-	level = user_mode(regs) ? KERN_DEBUG : KERN_CRIT;
+	user = !!user_mode(regs);
+	level = user ? KERN_DEBUG : KERN_CRIT;
 
 	print_gr(level, regs);
 
@@ -152,7 +153,8 @@ void show_regs(struct pt_regs *regs)
 	printk(level);
 	print_symbol(" RP(r2): %s\n", regs->gr[2]);
 
-	parisc_show_stack(current, NULL, regs);
+	if (!user)
+		parisc_show_stack(current, NULL, regs);
 }
 
 
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From - Thu Nov 08 21:02:39 2018
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This patch adds the missing MODULE_LICENSE("GPL").

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>

---

This patch has been sent on:
- 15 Jun 2008

4cec562181f818f16f072b9a14ca7a0ce6c66417 diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c
index fdc36bf..6d3bebb 100644
--- a/fs/binfmt_som.c
+++ b/fs/binfmt_som.c
@@ -308,3 +308,5 @@ static void __exit exit_som_binfmt(void)
 
 core_initcall(init_som_binfmt);
 module_exit(exit_som_binfmt);
+
+MODULE_LICENSE("GPL");
--
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From - Thu Nov 08 21:02:39 2018
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From: Adrian Bunk <bunk@kernel.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [2.6 patch] drivers/parisc/: make code static
Date: Thu, 7 Aug 2008 00:12:02 +0300
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/595>

This patch makes the following needlessly global code static:
- asp.c: asp_init_chip()
- ccio-dma.c: ccio_io_pdir_entry()
- dino.c: struct dino_port_ops
- dino.c: struct dino_bios_ops
- hppb.c: struct hppb_card_head
- lasi.c: lasi_led_init()
- lasi.c: lasi_init_chip()
- lba_pci.c: struct lba_bios_ops
- sba_iommu.c: sba_io_pdir_entry()
- sba_iommu.c: sba_driver_callback()
- sba_iommu.c: sba_driver_callback()
- wax.c: wax_init_chip()

Signed-off-by: Adrian Bunk <bunk@kernel.org>

---

This patch has been sent on:
- 15 Jun 2008

 drivers/parisc/asp.c       |    3 +--
 drivers/parisc/ccio-dma.c  |    2 +-
 drivers/parisc/dino.c      |    4 ++--
 drivers/parisc/hppb.c      |    2 +-
 drivers/parisc/lasi.c      |    5 ++---
 drivers/parisc/lba_pci.c   |    2 +-
 drivers/parisc/sba_iommu.c |    7 +++----
 drivers/parisc/wax.c       |    3 +--
 8 files changed, 12 insertions(+), 16 deletions(-)

78e10083d054032afa9979cae16c10d54d366855 diff --git a/drivers/parisc/asp.c b/drivers/parisc/asp.c
index 8213691..7931133 100644
--- a/drivers/parisc/asp.c
+++ b/drivers/parisc/asp.c
@@ -71,8 +71,7 @@ static void asp_choose_irq(struct parisc_device *dev, void *ctrl)
  */
 #define ASP_INTERRUPT_ADDR 0xf0800000
 
-int __init
-asp_init_chip(struct parisc_device *dev)
+static int __init asp_init_chip(struct parisc_device *dev)
 {
 	struct gsc_irq gsc_irq;
 	int ret;
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index b30e38f..898f69e 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -564,7 +564,7 @@ static u32 hint_lookup[] = {
  * (Load Coherence Index) instruction.  The 8 bits used for the virtual
  * index are bits 12:19 of the value returned by LCI.
  */ 
-void CCIO_INLINE
+static void CCIO_INLINE
 ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
 		   unsigned long hints)
 {
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index fd56128..ada21b0 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -287,7 +287,7 @@ DINO_PORT_OUT(b,  8, 3)
 DINO_PORT_OUT(w, 16, 2)
 DINO_PORT_OUT(l, 32, 0)
 
-struct pci_port_ops dino_port_ops = {
+static struct pci_port_ops dino_port_ops = {
 	.inb	= dino_in8,
 	.inw	= dino_in16,
 	.inl	= dino_in32,
@@ -688,7 +688,7 @@ dino_fixup_bus(struct pci_bus *bus)
 }
 
 
-struct pci_bios_ops dino_bios_ops = {
+static struct pci_bios_ops dino_bios_ops = {
 	.init		= dino_bios_init,
 	.fixup_bus	= dino_fixup_bus
 };
diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c
index 65eee67..1385641 100644
--- a/drivers/parisc/hppb.c
+++ b/drivers/parisc/hppb.c
@@ -29,7 +29,7 @@ struct hppb_card {
 	struct hppb_card *next;
 };
 
-struct hppb_card hppb_card_head = {
+static struct hppb_card hppb_card_head = {
 	.hpa = 0,
 	.next = NULL,
 };
diff --git a/drivers/parisc/lasi.c b/drivers/parisc/lasi.c
index bee5100..e65727c 100644
--- a/drivers/parisc/lasi.c
+++ b/drivers/parisc/lasi.c
@@ -107,7 +107,7 @@ lasi_init_irq(struct gsc_asic *this_lasi)
 
 #else
 
-void __init lasi_led_init(unsigned long lasi_hpa)
+static void __init lasi_led_init(unsigned long lasi_hpa)
 {
 	unsigned long datareg;
 
@@ -163,8 +163,7 @@ static void lasi_power_off(void)
 	gsc_writel(0x02, datareg);
 }
 
-int __init
-lasi_init_chip(struct parisc_device *dev)
+static int __init lasi_init_chip(struct parisc_device *dev)
 {
 	extern void (*chassis_power_off)(void);
 	struct gsc_asic *lasi;
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index a28c894..d8233de 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -824,7 +824,7 @@ lba_fixup_bus(struct pci_bus *bus)
 }
 
 
-struct pci_bios_ops lba_bios_ops = {
+static struct pci_bios_ops lba_bios_ops = {
 	.init =		lba_bios_init,
 	.fixup_bus =	lba_fixup_bus,
 };
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index bc73b96..34763e2 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -561,7 +561,7 @@ typedef unsigned long space_t;
  * IOMMU uses little endian for the pdir.
  */
 
-void SBA_INLINE
+static void SBA_INLINE
 sba_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
 		  unsigned long hint)
 {
@@ -1874,7 +1874,7 @@ static struct parisc_device_id sba_tbl[] = {
 	{ 0, }
 };
 
-int sba_driver_callback(struct parisc_device *);
+static int sba_driver_callback(struct parisc_device *);
 
 static struct parisc_driver sba_driver = {
 	.name =		MODULE_NAME,
@@ -1887,8 +1887,7 @@ static struct parisc_driver sba_driver = {
 ** If so, initialize the chip and tell other partners in crime they
 ** have work to do.
 */
-int
-sba_driver_callback(struct parisc_device *dev)
+static int sba_driver_callback(struct parisc_device *dev)
 {
 	struct sba_device *sba_dev;
 	u32 func_class;
diff --git a/drivers/parisc/wax.c b/drivers/parisc/wax.c
index 892a83b..da9d5ad 100644
--- a/drivers/parisc/wax.c
+++ b/drivers/parisc/wax.c
@@ -68,8 +68,7 @@ wax_init_irq(struct gsc_asic *wax)
 //	gsc_writel(0xFFFFFFFF, base+0x2000); /* RS232-B on Wax */
 }
 
-int __init
-wax_init_chip(struct parisc_device *dev)
+static int __init wax_init_chip(struct parisc_device *dev)
 {
 	struct gsc_asic *wax;
 	struct parisc_device *parent;

--
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From: Adrian Bunk <bunk@kernel.org>
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Subject: [2.6 patch] parisc/lib/: make code static
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This patch makes the following needlessly global code static:
- iomap.c: struct iomap_ops[]
- memcpy.c: pa_memcpy()

Signed-off-by: Adrian Bunk <bunk@kernel.org>

---

This patch has been sent on:
- 15 Jun 2008

 arch/parisc/lib/iomap.c  |    2 +-
 arch/parisc/lib/memcpy.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

45e7cd0b2c678dda4f5ba4ac6d0ed628df9381bd diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index 9abed07..5069e8b 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -261,7 +261,7 @@ static const struct iomap_ops iomem_ops = {
 	iomem_write32r,
 };
 
-const struct iomap_ops *iomap_ops[8] = {
+static const struct iomap_ops *iomap_ops[8] = {
 	[0] = &ioport_ops,
 	[7] = &iomem_ops
 };
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index 2d68431..bbda909 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -275,7 +275,7 @@ handle_store_error:
 
 
 /* Returns 0 for success, otherwise, returns number of bytes not transferred. */
-unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
 {
 	register unsigned long src, dst, t1, t2, t3;
 	register unsigned char *pcs, *pcd;

--
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Subject: Re: [PATCH] fix unwind crash - was: Re: 2.6.26 kernel crash
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On Wed, Aug 6, 2008 at 3:41 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> +       user = !!user_mode(regs);

Exqueeze me? Baking powder? Why can't the compiler just mush all of
this up and get back the same thing you had before?

Cheers,
Carlos.
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> On Tue, Aug 05, 2008 at 03:21:32PM +0100, Joel Soete wrote:
> > > On Thu, Jul 24, 2008 at 02:13:55PM +0100, Joel Soete wrote:
> > > > Hello Grant, Kyle, et al.,
> > > >
> > > > Iirc the number of io_tlb enties on this u2/uturn ioa is of 256?
> > >
> > > ISTR that u2 and uturn have different number of IO TLB entries.
> > > But I don't recall how many exactly. Need the ERSs to look that up.
> > >
> > Well, I don't yet find the right way to get access, sorry.
> > 
> > > > Because issue occur only when I do a lot of I/O on scsi disk (sometime
request
> > > > of mapping reach 128 pages), the idea was that it could induce some
exceed of
> > > > iotlb entries.
> > > >
> > [snip]
> > >
> > > The number of "used" entries include "in flight" DMA and pci_consistent
> > allocations. This generally isn't that many pages of RAM.
> > >
> > Ok,
> > But the idea was that if so much pdir entries was mapped in a so short time
> > (1s), it should be also that the device will try to use them on the fly (just
> > an hypothesis.)
> > And so far as I can observe, the pb occurs when os operate on numerous huge
> > data blocks (i.e. a tar -xvf of a linux tree into a single fs); so in this
> > case it should be that the i/o device trigger many i/o tlb miss and may be
> > much more i/o tlb entries then it can be freed?
> 
> Yes, that's certainly possible. 
> But it's not the only behavior triggered by lots of in-flight IO traffic.
> 
Ok 
(that's just the simplest way I found to reproduce the day to day issue I
encounter when I do an update of my system: this is not during the download of
pkg but during 'Unpacking' step and that already broken my fs ;_()

> 
> > What I observe also is that the pb become worse either with a system with few
> > ram (like my c110 with 64M) or when I resurrect CCIO_MEM_RATIO (e.g. 2 or 4)
> > on a system with 256Mb of RAM). In those last 2 cases the effect is the same:
> >   a/ it makes the pdir_size and the number of pdir entries smaller
> 
> Yes.
> 
> >   b/ as well for chainid_shift.
> 
> I've forgotten exactly the role of the chainid...I'd have to study
> the code again.
>
no pb
 
> 
> > This last point (b/) make me thought that it would also make smaller the
> > number of 4k-byte per chainid and so for a same DMA block size it would
> > required more iotlb entries.
> 
> No. The number of IO TLB entries (192 or something like that) and IO MMU
> page size (4k) are both fixed.
> Both are also completely unrelated to the size of the IO Pdir.
> 
Totaly agree.
But I wrongly explain my idea, my understanding was that chainid_shift allow
to compute a chainid_mask to setup the U2 (in my case) iommu.
After my reading of hp paper: "Hardware Cache Coherent Input/Output", I
supposed (that's certainly where I am wrong) that this chainid_mask was a hint
to instruct iommu the max size of an I/O data block (e.g. for the d380 with
256Mb I got chainid_shift = 19 [18 with ccio_mem_ratio = 2] and so chain_size
= 2 ^ 19 = 128 * 4k pages (at least that's only what clear_io_tlb() does)). So
for a big data block of 128*4k pages (I realy read such request of mapping)
the scsi device would just need 1 io_tlb entry while it would request 2 (with
ccio_mem_ratio = 2) and even 4 (with a c110 with only 64Mb).
That's obviously  my own reading (without any coach ;-), sorry in advance if
that's more confusing.

> > 
> > Obviously just speculation ;<).
> > 
> > Even thought 3 things sure:
> >   - issue occurs for huge I/O
> >   - become worse with reduced iov_space_size (physical or logical)
> >   - backport sba help a bit but doesn't fix issue
> 
> Yeah, those suggest IO TLB flushing is failing or IO Pdir isn't coherent.
> There might be other things broken too.
> 
Yes
(with relayfs I tried to trace as much as I can but it have the default to not
capture all messages and so just give me a overview of the execution path.
Next step in my investigation: coalesce_chunks();
but I am still looking for sg_list detail, though what kind of sg sump I could
grab (after coalesce_chunks()):

this one is easy to understand:
[0]- page_link: 0x10692980 (275327360), offset:0x0, length: 4096,
iova(dma_address): 0xad0000, iova_length(dma_length): 40960.
[1]- page_link: 0x10692960 (275327328), offset:0x0, length: 4096,
iova(dma_address): 0x0, iova_length(dma_length): 0.
[2]- page_link: 0x10692940 (275327296), offset:0x0, length: 4096,
iova(dma_address): 0x0, iova_length(dma_length): 0.
[3]- page_link: 0x10692920 (275327264), offset:0x0, length: 4096,
iova(dma_address): 0x0, iova_length(dma_length): 0.
[4]- page_link: 0x10692900 (275327232), offset:0x0, length: 4096,
iova(dma_address): 0x0, iova_length(dma_length): 0.
[5]- page_link: 0x106928e0 (275327200), offset:0x0, length: 4096,
iova(dma_address): 0x0, iova_length(dma_length): 0.
[6]- page_link: 0x106928c0 (275327168), offset:0x0, length: 4096,
iova(dma_address): 0x0, iova_length(dma_length): 0.
[7]- page_link: 0x10692a80 (275327616), offset:0x0, length: 4096,
iova(dma_address): 0x0, iova_length(dma_length): 0.
[8]- page_link: 0x10692c40 (275328064), offset:0x0, length: 4096,
iova(dma_address): 0x0, iova_length(dma_length): 0.
[9]- page_link: 0x10692c22 (275328034), offset:0x0, length: 4096,
iova(dma_address): 0x0, iova_length(dma_length): 0.

i.e. 10 * 4k pages fused (coalesce?) in one dma data block of 40K using iova
0xad0000 (ok?)

but I don't yet understand following ones:
[0]- page_link: 0x10681b40 (275258176), offset:0x0, length: 4096,
iova(dma_address): 0x198000, iova_length(dma_length): 12288.
[1]- page_link: 0x10681b20 (275258144), offset:0x0, length: 4096,
iova(dma_address): 0x19bc00, iova_length(dma_length): 1024.
[2]- page_link: 0x10681b00 (275258112), offset:0x0, length: 4096,
iova(dma_address): 0x0, iova_length(dma_length): 0.
[3]- page_link: 0x10681a82 (275257986), offset:0xc00, length: 1024,
iova(dma_address): 0x8019bc00, iova_length(dma_length): 0.

why not fuse in only one block?

or this one:
[0]- page_link: 0x10692f00 (275328768), offset:0x0, length: 12288,
iova(dma_address): 0x1a30000, iova_length(dma_length): 49152.
[1]- page_link: 0x10693060 (275329120), offset:0x0, length: 4096,
iova(dma_address): 0x1a40000, iova_length(dma_length): 40960.
[2]- page_link: 0x106930a0 (275329184), offset:0x0, length: 8192,
iova(dma_address): 0x0, iova_length(dma_length): 0.
[3]- page_link: 0x10693240 (275329600), offset:0x0, length: 24576,
iova(dma_address): 0x0, iova_length(dma_length): 0.
[4]- page_link: 0x106935e0 (275330528), offset:0x0, length: 20480,
iova(dma_address): 0x81a40000, iova_length(dma_length): 0.
[5]- page_link: 0x106937a0 (275330976), offset:0x0, length: 4096,
iova(dma_address): 0x0, iova_length(dma_length): 0.
[6]- page_link: 0x106937e2 (275331042), offset:0x0, length: 16384,
iova(dma_address): 0x0, iova_length(dma_length): 0.

as the chainid_size is of 128*4k pages (=512k) why not coalescing all stuff in
one data block? 
Or it's not the place where scatterlist blocks are put together to form one
contiguous block for dma access?
(well my understanding of the beginning of sg list management was to put
together scattered blocks at contiguous _physical_ address for dma access. But
with those U2 we work now with _virtual_ address and index so am I a bit lost ;-)
 
But this next one are totally puzzling me:
[0]- page_link: 0x10667600 (275150336), length: 1024, iova(dma_address):
0x800ae000, iova_length(dma_length): 1024.
[1]- page_link: 0x1072e2e0 (275964640), length: 1024, iova(dma_address):
0x800afc00, iova_length(dma_length): 1024.
[2]- page_link: 0x10676180 (275210624), length: 1024, iova(dma_address):
0x800b0800, iova_length(dma_length): 1024.
[3]- page_link: 0x10541d00 (273947904), length: 1024, iova(dma_address):
0x800b1c00, iova_length(dma_length): 1024.
[4]- page_link: 0x1072dd00 (275963136), length: 1024, iova(dma_address):
0x800b2800, iova_length(dma_length): 1024.
[5]- page_link: 0x1072dd20 (275963168), length: 1024, iova(dma_address):
0x800b3800, iova_length(dma_length): 1024.
[6]- page_link: 0x107284c0 (275940544), length: 1024, iova(dma_address):
0x800b4c00, iova_length(dma_length): 1024.

(sorry, here I don't have offsets but I doubt it would help me to understand
why no gather occurs here?)


> > > > Anyway, difference between those last 2 samples (718 - 444) = 274
increase of
> > > > io_pdir entries.
> > >
> > > That's about right for a SCSI device since it can't have that much
> > > IO in flight for one or two disks.
> > >
> > [snip]
> > >
> > > Of course. The number of "used" entries in the IO Pdir has no direct
> > > correlation to the number of "in use" IO TLB entries. IO TLB is fixed
> > > size while the IO Pdir size can vary between boots.
> > >
> > > >
> > > > Well as scatterlist is still puzzling me, I can still be confused between
> > > > iommu and mmu pages mapping, sorry so in advance if it's yet another
annoying
> > > > comment.
> > >
> > > IOMMU is an MMU for IO devices. MMU is the same thing for CPU.
> > > Differences exist between those two. DMA is generally to larger
> > > chunks/regions of RAM (256-2K bytes) while CPUs need to enforce
> > > access rights (X/R/W) to memory and deal with cachelines or less.
> > >
> > (well I still have difficulties in the relationship between all those buffers
> > which are caches and tlb and over that I/O DMA with its own set of cache and
> > iotlb. Fortunately there are now good doc freely available and good engine to
> > look for it, but it's not yet so easy to me)
> 
> Agreed - it's not easy.
> 
Tx (when a master said 'it's not easy' that sincerely encourage me to continue
my learning)

Again thanks a lot for your kind attention,
    J.

> grant
> 
> > 
> > Tx again for advises,
> >     J.
> > 
> > > hth,
> > > grant
> > > --
> > 
> --


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From - Thu Nov 08 21:02:39 2018
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On Mon, Aug 04, 2008 at 03:39:57PM -0400, John David Anglin wrote:
> > On Sun, Apr 06, 2008 at 07:09:59PM -0400, John David Anglin wrote:
> > > > If you strace it, what syscall returns -EOPNOTSUPP?
> > > 
> > > strace is broken and quits before the relevant syscall.  Think I
> > > mentioned this before is a different context.
> > > 
> > 
> > Fixed & updated strace available at
> > http://people.debian.org/~kyle/strace/
> 
> lgetxattr("strace_4.5.16-1_hppa.deb", "security.selinux"..., 0x2c768, 255) = -1 EOPNOTSUPP 
> (Operation not supported)
> 
> This is probably the correct return but the manpage for lgetxattr says
> it should return ENOTSUP.  Possibly, the problem occurs on hppa because
> ENOTSUP and EOPNOTSUPP are different codes.  In any case, the current
> version of ls only checks for ENOTSUP.
> 

Ah, it's wrong.

ls.c should be checking for -EOPNOTSUP, which is the only thing any of
the kernel codepaths return for failing xattr calls. You're correct in
diagnosing that this is only problematic on parisc, because we're the
only folks who use a different value for EOPNOTSUP and ENOTSUP.

cheers, Kyle
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From - Thu Nov 08 21:02:39 2018
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> ls.c should be checking for -EOPNOTSUP, which is the only thing any of
> the kernel codepaths return for failing xattr calls. You're correct in
> diagnosing that this is only problematic on parisc, because we're the
> only folks who use a different value for EOPNOTSUP and ENOTSUP.

It is my understanding that Jim Meyering is addressing the ls issue.
HP-UX is also theoretically affected but the code paths are different.

The manpages are still wrong.  This probably led to the confusion in
the first place.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] fix unwind crash - was: Re: 2.6.26 kernel crash
Date: Fri, 8 Aug 2008 08:56:46 -0400
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Cc: "Randolph Chung" <randolph@tausq.org>,
	"Helge Deller" <deller@gmx.de>, linux-parisc@vger.kernel.org
To: "Kyle McMartin" <kyle@mcmartin.ca>
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On Wed, Aug 6, 2008 at 3:41 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> -       parisc_show_stack(current, NULL, regs);
> +       if (!user)
> +               parisc_show_stack(current, NULL, regs);

or

if (level == KERN_CRIT)
  parisc_show_stack (current, NULL, regs);

I think this bit of code is the only thing that is required e.g. Only
call parisc_show_stack if it's not a usermode set of registers?

Cheers,
Carlos.
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From - Thu Nov 08 21:02:40 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [2.6 patch] binfmt_som.c: add MODULE_LICENSE
Date: Sat, 9 Aug 2008 18:55:11 -0600
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Cc: kyle@mcmartin.ca, matthew@wil.cx, grundler@parisc-linux.org,
	linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>, bdale@hp.com
To: Adrian Bunk <bunk@kernel.org>
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+bdale@hp.com

On Thu, Aug 07, 2008 at 12:11:55AM +0300, Adrian Bunk wrote:
> This patch adds the missing MODULE_LICENSE("GPL").
> 
> Reported-by: Adrian Bunk <bunk@kernel.org>
> Signed-off-by: Adrian Bunk <bunk@kernel.org>
> 
> ---
> 
> This patch has been sent on:
> - 15 Jun 2008
> 
> 4cec562181f818f16f072b9a14ca7a0ce6c66417 diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c
> index fdc36bf..6d3bebb 100644
> --- a/fs/binfmt_som.c
> +++ b/fs/binfmt_som.c
> @@ -308,3 +308,5 @@ static void __exit exit_som_binfmt(void)
>  
>  core_initcall(init_som_binfmt);
>  module_exit(exit_som_binfmt);
> +
> +MODULE_LICENSE("GPL");

Someone from HP needs to ACK this patch since I believe HP funded the code
changes made during the parisc-linux port. This should be a no-brainer
and I expect Bdale Garbee can quickly take care of this.

thanks,
grant
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From - Thu Nov 08 21:02:40 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [2.6 patch] binfmt_som.c: add MODULE_LICENSE
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On Sat, Aug 09, 2008 at 06:55:11PM -0600, Grant Grundler wrote:
> Someone from HP needs to ACK this patch since I believe HP funded the code
> changes made during the parisc-linux port. This should be a no-brainer
> and I expect Bdale Garbee can quickly take care of this.

I actually did the work here, it was derived heavily from binfmt_elf
and binfmt_aout; had it not been GPL-licensed, it would not have been
distributable.  Also, I believe I did this work before joining Linuxcare,
so I don't believe HP has any claim to it at all.  You'd have to check
CVS history to be sure.  Oh, and even if HP does have a claim to it
through Linuxcare, HP's contract required all changes made by Linuxcare
to be contributed upstream.  So three different reasons why this code
being GPL is required.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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From - Thu Nov 08 21:02:40 2018
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From: Bdale Garbee <bdale@hp.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [2.6 patch] binfmt_som.c: add MODULE_LICENSE
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On Sat, 2008-08-09 at 19:00 -0600, Matthew Wilcox wrote:
> On Sat, Aug 09, 2008 at 06:55:11PM -0600, Grant Grundler wrote:
> > Someone from HP needs to ACK this patch since I believe HP funded the code
> > changes made during the parisc-linux port. This should be a no-brainer
> > and I expect Bdale Garbee can quickly take care of this.

> I believe I did this work before joining Linuxcare,
> so I don't believe HP has any claim to it at all.  You'd have to check
> CVS history to be sure.  

If that is indeed the timing, I agree.  If not, let me know, and I'll
see if I can push the right buttons in HP.

Bdale

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From: Adrian Bunk <bunk@kernel.org>
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On Sat, Aug 09, 2008 at 06:55:11PM -0600, Grant Grundler wrote:
> +bdale@hp.com
> 
> On Thu, Aug 07, 2008 at 12:11:55AM +0300, Adrian Bunk wrote:
> > This patch adds the missing MODULE_LICENSE("GPL").
> > 
> > Reported-by: Adrian Bunk <bunk@kernel.org>
> > Signed-off-by: Adrian Bunk <bunk@kernel.org>
> > 
> > ---
> > 
> > This patch has been sent on:
> > - 15 Jun 2008
> > 
> > 4cec562181f818f16f072b9a14ca7a0ce6c66417 diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c
> > index fdc36bf..6d3bebb 100644
> > --- a/fs/binfmt_som.c
> > +++ b/fs/binfmt_som.c
> > @@ -308,3 +308,5 @@ static void __exit exit_som_binfmt(void)
> >  
> >  core_initcall(init_som_binfmt);
> >  module_exit(exit_som_binfmt);
> > +
> > +MODULE_LICENSE("GPL");
> 
> Someone from HP needs to ACK this patch since I believe HP funded the code
> changes made during the parisc-linux port. This should be a no-brainer
> and I expect Bdale Garbee can quickly take care of this.

Either the file is available since the beginning under the terms of the 
GPLv2 (or a compatible license that can be reduced to GPLv2) or it's 
addition to the kernel was a huge mistake.

> thanks,
> grant

cu
Adrian

-- 

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        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [2.6 patch] binfmt_som.c: add MODULE_LICENSE
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To: Bdale Garbee <bdale@hp.com>
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On Sun, Aug 10, 2008 at 10:41:54AM -0300, Bdale Garbee wrote:
> On Sat, 2008-08-09 at 19:00 -0600, Matthew Wilcox wrote:
> > On Sat, Aug 09, 2008 at 06:55:11PM -0600, Grant Grundler wrote:
> > > Someone from HP needs to ACK this patch since I believe HP funded the code
> > > changes made during the parisc-linux port. This should be a no-brainer
> > > and I expect Bdale Garbee can quickly take care of this.
> 
> > I believe I did this work before joining Linuxcare,
> > so I don't believe HP has any claim to it at all.  You'd have to check
> > CVS history to be sure.  
> 
> If that is indeed the timing, I agree.  If not, let me know, and I'll
> see if I can push the right buttons in HP.

http://cvs.parisc-linux.org/obsolete/linux-2.2/fs/binfmt_som.c?rev=1.8&view=log

indicates I first committed the file in June 1999 and was the majority
committer to this file (prumpf also committed some code).  My last
commit to it was in November 1999 (while I still worked for Genedata).

At some point around then, we moved to the 2.4 CVS tree:

http://cvs.parisc-linux.org/linux-2.4/fs/binfmt_som.c?rev=1.21&view=log

and there are some commits from other people at HP and myself while at
Linuxcare and HP.

The 2.5 development tree:
http://cvs.parisc-linux.org/linux-2.5/fs/binfmt_som.c?rev=1.3&view=log

doesn't show anything of great interest.

and the 2.6 tree represents accurately how much effort we put into SOM:
http://cvs.parisc-linux.org/linux-2.6/fs/binfmt_som.c?rev=1.8&view=log


So while HP has a legitimate claim to some parts of the file, my initial
contributions before I worked for Linuxcare or HP were the largest and I
don't think that anyone has a legitimate claim that this is not a
derived work of GPL code, and hence I think Adrian's patch should be
accepted.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ide,gmane.linux.kernel
Subject: Re: [PATCH] ide: remove unused macros from <asm-parisc/ide.h>
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On Sun, Aug 10, 2008 at 05:47:07PM +0200, Bartlomiej Zolnierkiewicz wrote:
> 
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
> ---
>  include/asm-parisc/ide.h |    4 ----
>  1 file changed, 4 deletions(-)
> 
> Index: b/include/asm-parisc/ide.h
> ===================================================================
> --- a/include/asm-parisc/ide.h
> +++ b/include/asm-parisc/ide.h
> @@ -13,10 +13,6 @@
>  
>  #ifdef __KERNEL__
>  
> -#define ide_request_irq(irq,hand,flg,dev,id)	request_irq((irq),(hand),(flg),(dev),(id))
> -#define ide_free_irq(irq,dev_id)		free_irq((irq), (dev_id))
> -#define ide_request_region(from,extent,name)	request_region((from), (extent), (name))
> -#define ide_release_region(from,extent)		release_region((from), (extent))
>  /* Generic I/O and MEMIO string operations.  */
>  

Thanks Bart!

Groovy... Want me to merge this, or will you shepherd it in?

Acked-by: Kyle McMartin <kyle@mcmartin.ca>

regards, Kyle
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On Sunday 10 August 2008, Kyle McMartin wrote:
> On Sun, Aug 10, 2008 at 05:47:07PM +0200, Bartlomiej Zolnierkiewicz wrote:
> > 
> > Cc: Kyle McMartin <kyle@mcmartin.ca>
> > Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
> > ---
> >  include/asm-parisc/ide.h |    4 ----
> >  1 file changed, 4 deletions(-)
> > 
> > Index: b/include/asm-parisc/ide.h
> > ===================================================================
> > --- a/include/asm-parisc/ide.h
> > +++ b/include/asm-parisc/ide.h
> > @@ -13,10 +13,6 @@
> >  
> >  #ifdef __KERNEL__
> >  
> > -#define ide_request_irq(irq,hand,flg,dev,id)	request_irq((irq),(hand),(flg),(dev),(id))
> > -#define ide_free_irq(irq,dev_id)		free_irq((irq), (dev_id))
> > -#define ide_request_region(from,extent,name)	request_region((from), (extent), (name))
> > -#define ide_release_region(from,extent)		release_region((from), (extent))
> >  /* Generic I/O and MEMIO string operations.  */
> >  
> 
> Thanks Bart!
> 
> Groovy... Want me to merge this, or will you shepherd it in?

In the fear of include/asm-parisc/ shuffle I would prefer that you pick it.

Thanks.
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Cc: Bdale Garbee <bdale@hp.com>,
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On Sun, Aug 10, 2008 at 09:14:33AM -0600, Matthew Wilcox wrote:
...
> > If that is indeed the timing, I agree.  If not, let me know, and I'll
> > see if I can push the right buttons in HP.
> 
> http://cvs.parisc-linux.org/obsolete/linux-2.2/fs/binfmt_som.c?rev=1.8&view=log
> 
> indicates I first committed the file in June 1999 and was the majority
> committer to this file (prumpf also committed some code).  My last
> commit to it was in November 1999 (while I still worked for Genedata).

Ok - I didn't realize that.

> At some point around then, we moved to the 2.4 CVS tree:
> 
> http://cvs.parisc-linux.org/linux-2.4/fs/binfmt_som.c?rev=1.21&view=log
> 
> and there are some commits from other people at HP and myself while at
> Linuxcare and HP.

Thanks for digging this up.
I expect it should be easy for Bdale to get this rubber stamped
by any one of the HP linux kernel engineers.  HP legal shouldn't
need to be involved.



> 
> The 2.5 development tree:
> http://cvs.parisc-linux.org/linux-2.5/fs/binfmt_som.c?rev=1.3&view=log
> 
> doesn't show anything of great interest.
> 
> and the 2.6 tree represents accurately how much effort we put into SOM:
> http://cvs.parisc-linux.org/linux-2.6/fs/binfmt_som.c?rev=1.8&view=log
> 
> 
> So while HP has a legitimate claim to some parts of the file, my initial
> contributions before I worked for Linuxcare or HP were the largest and I
> don't think that anyone has a legitimate claim that this is not a
> derived work of GPL code, and hence I think Adrian's patch should be
> accepted.

I agree and apologize for my bad memory and lazy attitude. I didn't mean
to make a big deal of this - just assumed HP was the right party to
address this to.

cheers,
grant

> 
> -- 
> Intel are signing my paycheques ... these opinions are still mine
> "Bill, look, we understand that you're interested in selling us this
> operating system, but compare it to ours.  We can't possibly take such
> a retrograde step."
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On Sun, Aug 10, 2008 at 05:11:59PM +0300, Adrian Bunk wrote:
> On Sat, Aug 09, 2008 at 06:55:11PM -0600, Grant Grundler wrote:
...
> > Someone from HP needs to ACK this patch since I believe HP funded the code
> > changes made during the parisc-linux port. This should be a no-brainer
> > and I expect Bdale Garbee can quickly take care of this.
> 
> Either the file is available since the beginning under the terms of the 
> GPLv2 (or a compatible license that can be reduced to GPLv2) or it's 
> addition to the kernel was a huge mistake.

As a former HP employee who was one of the several parisc-linux developers,
I'm certain the intent was to release this as GPL. That's why I said
"this should be a no-brainer".

However, it's still HP's (and not my) right to assert that.

thanks,
grant
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Subject: Re: [2.6 patch] binfmt_som.c: add MODULE_LICENSE
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On Sun, Aug 10, 2008 at 06:10:15PM -0600, Grant Grundler wrote:
> On Sun, Aug 10, 2008 at 05:11:59PM +0300, Adrian Bunk wrote:
> > On Sat, Aug 09, 2008 at 06:55:11PM -0600, Grant Grundler wrote:
> ...
> > > Someone from HP needs to ACK this patch since I believe HP funded the code
> > > changes made during the parisc-linux port. This should be a no-brainer
> > > and I expect Bdale Garbee can quickly take care of this.
> > 
> > Either the file is available since the beginning under the terms of the 
> > GPLv2 (or a compatible license that can be reduced to GPLv2) or it's 
> > addition to the kernel was a huge mistake.
> 
> As a former HP employee who was one of the several parisc-linux developers,
> I'm certain the intent was to release this as GPL. That's why I said
> "this should be a no-brainer".
> 
> However, it's still HP's (and not my) right to assert that.

If it wasn't already 100% clear that the file was released under
the terms of the GPLv2 (or a compatible license that can be reduced
to GPLv2) at the day when it was included into the kernel something
went horribly wrong back then.

Otherwise HP would have the situation SCO was desperately searching for...

> thanks,
> grant

cu
Adrian

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       "Only a promise," Lao Er said.
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [2.6 patch] binfmt_som.c: add MODULE_LICENSE
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> On Sun, Aug 10, 2008 at 06:10:15PM -0600, Grant Grundler wrote:
> > On Sun, Aug 10, 2008 at 05:11:59PM +0300, Adrian Bunk wrote:
> > > On Sat, Aug 09, 2008 at 06:55:11PM -0600, Grant Grundler wrote:
> > ...
> > > > Someone from HP needs to ACK this patch since I believe HP funded the code
> > > > changes made during the parisc-linux port. This should be a no-brainer
> > > > and I expect Bdale Garbee can quickly take care of this.
> > > 
> > > Either the file is available since the beginning under the terms of the 
> > > GPLv2 (or a compatible license that can be reduced to GPLv2) or it's 
> > > addition to the kernel was a huge mistake.
> > 
> > As a former HP employee who was one of the several parisc-linux developers,
> > I'm certain the intent was to release this as GPL. That's why I said
> > "this should be a no-brainer".
> > 
> > However, it's still HP's (and not my) right to assert that.
> 
> If it wasn't already 100% clear that the file was released under
> the terms of the GPLv2 (or a compatible license that can be reduced
> to GPLv2) at the day when it was included into the kernel something
> went horribly wrong back then.
> 
> Otherwise HP would have the situation SCO was desperately searching for...

This file was included before the SCO situation arose.  The copyright
notice is similar to most.  Checking 2.6.22.19, I see that more than
half the .c files lack MODULE_LICENSE("GPL") lines.

I don't understand why we are talking about HP here.  According to
Matthew, his last commit to this file occured while he worked for
Genedata.  It is my understanding that copyright normally acrues
to employers in employment situations.  If Matthew was an employee
and not an independent contractor at the time, then why are we not
talking about Genedata, or its subsequent owner?  Subsequent
employment at HP or their funding of the parisc port shouldn't
affect the licensing of a file that was previously contributed.
The file appears to be a derived work.  This may also affect its
copyright status.  The only reason HP should be involved is if the
file somehow contains material copyrighted by HP.

The whole licensing issue for the linux program and modules,
particularly for individual files, appears to be a mess.  The
COPYING file is vague on the licensing for files.   The recommended
wording suggested by the FSF isn't used.  I can't see that adding
MODULE_LICENSE("GPL") lines is going to help much.

There are several GPL licenses and versions.  The line isn't
going to mean much to a lawyer.  I really think each file should
be specific about its licensing in words that can be clearly
understood.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, 2008-08-10 at 09:14 -0600, Matthew Wilcox wrote:

> So while HP has a legitimate claim to some parts of the file, my initial
> contributions before I worked for Linuxcare or HP were the largest and I
> don't think that anyone has a legitimate claim that this is not a
> derived work of GPL code, and hence I think Adrian's patch should be
> accepted.

I agree.  Thanks for tracking down the details.

Bdale

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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Mon, Aug 11, 2008 at 10:56:51AM -0400, John David Anglin wrote:
> > On Sun, Aug 10, 2008 at 06:10:15PM -0600, Grant Grundler wrote:
> > > On Sun, Aug 10, 2008 at 05:11:59PM +0300, Adrian Bunk wrote:
> > > > On Sat, Aug 09, 2008 at 06:55:11PM -0600, Grant Grundler wrote:
> > > ...
> > > > > Someone from HP needs to ACK this patch since I believe HP funded the code
> > > > > changes made during the parisc-linux port. This should be a no-brainer
> > > > > and I expect Bdale Garbee can quickly take care of this.
> > > > 
> > > > Either the file is available since the beginning under the terms of the 
> > > > GPLv2 (or a compatible license that can be reduced to GPLv2) or it's 
> > > > addition to the kernel was a huge mistake.
> > > 
> > > As a former HP employee who was one of the several parisc-linux developers,
> > > I'm certain the intent was to release this as GPL. That's why I said
> > > "this should be a no-brainer".
> > > 
> > > However, it's still HP's (and not my) right to assert that.
> > 
> > If it wasn't already 100% clear that the file was released under
> > the terms of the GPLv2 (or a compatible license that can be reduced
> > to GPLv2) at the day when it was included into the kernel something
> > went horribly wrong back then.
> > 
> > Otherwise HP would have the situation SCO was desperately searching for...
> 
> This file was included before the SCO situation arose.  The copyright
> notice is similar to most.  Checking 2.6.22.19, I see that more than
> half the .c files lack MODULE_LICENSE("GPL") lines.

MODULE_LICENSE() has nothing to do with the SCO case.

As the name already indicates it is only for modules (it doesn't make 
sense in built-in code) for showing that a module has a licence that is 
compatible with the GPL (all other modules are legally somewhere between 
fishy and illegal).

>...
> The whole licensing issue for the linux program and modules,
> particularly for individual files, appears to be a mess.  The
> COPYING file is vague on the licensing for files.   The recommended
> wording suggested by the FSF isn't used.  I can't see that adding
> MODULE_LICENSE("GPL") lines is going to help much.
> 
> There are several GPL licenses and versions.  The line isn't
> going to mean much to a lawyer.  I really think each file should
> be specific about its licensing in words that can be clearly
> understood.

The toplevel COPYING file of the kernel sources contains the exact 
licence text for all files (including binfmt_som.c) in the kernel.

Even if the wording suggested by the FSF is not used in all files it's 
clear that the kernel is under the GPLv2, and there isn't any serious 
doubt that if a file like binfmt_som.c was not under a GPLv2 compatible 
licence but built into a GPLv2'ed kernel the resulting image couldn't be 
legally distributed.

Does anyone involved with code going from HP to the Linux kernel 
seriously think that there is code for which it isn't 100% certain
that it was made available under the GPLv2?

> Dave

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [2.6 patch] binfmt_som.c: add MODULE_LICENSE
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To: bunk@kernel.org (Adrian Bunk)
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> The toplevel COPYING file of the kernel sources contains the exact 
> licence text for all files (including binfmt_som.c) in the kernel.

The COPYING file contains the license text but it doesn't say clearly
what the license applies to.  The closest thing to this is the statement

   Also note that the GPL below is copyrighted by the Free Software
   Foundation, but the instance of code that it refers to (the Linux
   kernel) is copyrighted by me and others who actually wrote it.

in the COPYING file.  The applicability of the GPL is parenthetical.
The HOWTO file is more specific, but a clear license statement at the
top level of the "source" tree is missing.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [2.6 patch] binfmt_som.c: add MODULE_LICENSE
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On Mon, Aug 11, 2008 at 10:56:51AM -0400, John David Anglin wrote:
> This file was included before the SCO situation arose.  The copyright
> notice is similar to most.  Checking 2.6.22.19, I see that more than
> half the .c files lack MODULE_LICENSE("GPL") lines.
> 
> I don't understand why we are talking about HP here.  According to
> Matthew, his last commit to this file occured while he worked for
> Genedata.

Whoops, that was in the linux-2.2 CVS repository.  There were subsequent
commits in the 2.4/2.5/2.6 repositories, some of which HP might have
a claim to.

> It is my understanding that copyright normally acrues
> to employers in employment situations.  If Matthew was an employee
> and not an independent contractor at the time, then why are we not
> talking about Genedata, or its subsequent owner?

While I don't have a copy of my employment contract with Genedata any
more, my recollection is that they did not claim copyright on works I
produced that were off company time.  It would be governed by Swiss law
which I believe would not permit such a term in the contract.

> Subsequent
> employment at HP or their funding of the parisc port shouldn't
> affect the licensing of a file that was previously contributed.

That's my basic argument.  If binfmt_elf had contained the GPL
boilerplate, I would have copied that when creating binfmt_som.  It was
intended to be GPL, it was a derivative work of GPL file (that also
didn't explicitly state it was GPL), it has been treated as GPL for
almost a decade.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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On Mon, Aug 11, 2008 at 12:56:43PM -0400, John David Anglin wrote:
> > The toplevel COPYING file of the kernel sources contains the exact 
> > licence text for all files (including binfmt_som.c) in the kernel.
> 
> The COPYING file contains the license text but it doesn't say clearly
> what the license applies to.  The closest thing to this is the statement
> 
>    Also note that the GPL below is copyrighted by the Free Software
>    Foundation, but the instance of code that it refers to (the Linux
>    kernel) is copyrighted by me and others who actually wrote it.
> 
> in the COPYING file.  The applicability of the GPL is parenthetical.
> The HOWTO file is more specific, but a clear license statement at the
> top level of the "source" tree is missing.

There's a file named COPYING at the top level, and a file named README 
at the top level that says:

WHAT IS LINUX?
...
  It is distributed under the GNU General Public License - see the
  accompanying COPYING file for more details. 


The GPLv2 licence on the Linux kernel is generally agreed upon 
(whether one likes it or not is a different question, but all 
contributors are aware that it applies) and has even been successfully 
enforced at court, which makes your attempts of finding a way to 
possibly interpret it differently kinda strange.


> Dave

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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Cc: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
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To: Guy Martin <gmsoft@tuxicoman.be>,
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Guy, thanks for the hint, and yes I see this problem as well.

The problem is really caused by hw/xfree86/fbdevhw/fbdevhw.c.

The driver sets a video mode and then checks if the syscall modified the 
parameters with the function fbdev_modes_equal():

--snip--
/* static*/ Bool
fbdev_modes_equal(struct fb_var_screeninfo *set, struct 
fb_var_screeninfo *req)
{
         return (set->xres_virtual >= req->xres_virtual &&
                 set->yres_virtual >= req->yres_virtual &&
                 set->bits_per_pixel == req->bits_per_pixel &&
                 set->red.length == req->red.length &&
                 set->green.length == req->green.length &&
                 set->blue.length == req->blue.length &&
                 set->xres == req->xres && set->yres == req->yres &&
                 set->pixclock == req->pixclock &&
                 set->right_margin == req->right_margin &&
                 set->hsync_len == req->hsync_len &&
                 set->left_margin == req->left_margin &&
                 set->lower_margin == req->lower_margin &&
                 set->vsync_len == req->vsync_len &&
                 set->upper_margin == req->upper_margin &&
                 set->sync == req->sync && set->vmode == req->vmode);
}
--snip--

Tracing with gdb gives the following:

Breakpoint 1, fbdev_modes_equal (set=0xfb5ed568, req=0xfb5ed4c8)
     at ../../../../hw/xfree86/fbdevhw/fbdevhw.c:256
256     }
(gdb) p *set
$1 = {xres = 1024, yres = 768, xres_virtual = 1024, yres_virtual = 768, 
xoffset = 0, yoffset = 0,
   bits_per_pixel = 8, grayscale = 0, red = {offset = 0, length = 8, 
msb_right = 0}, green = {offset = 0,
     length = 8, msb_right = 0}, blue = {offset = 0, length = 8, 
msb_right = 0}, transp = {offset = 0,
     length = 0, msb_right = 0}, nonstd = 0, activate = 0, height = 0, 
width = 0, accel_flags = 0,
   pixclock = 0, left_margin = 0, right_margin = 0, upper_margin = 0, 
lower_margin = 0, hsync_len = 0,
   vsync_len = 0, sync = 0, vmode = 0, reserved = {0, 0, 0, 0, 0, 0}}

(gdb) p *req
$2 = {xres = 1024, yres = 768, xres_virtual = 1024, yres_virtual = 768, 
xoffset = 0, yoffset = 0,
   bits_per_pixel = 8, grayscale = 0, red = {offset = 0, length = 8, 
msb_right = 0}, green = {offset = 0,
     length = 8, msb_right = 0}, blue = {offset = 0, length = 8, 
msb_right = 0}, transp = {offset = 0,
     length = 0, msb_right = 0}, nonstd = 0, activate = 0, height = 0, 
width = 0, accel_flags = 0,
   pixclock = 22271, left_margin = 56, right_margin = 8, upper_margin = 
41, lower_margin = 0,
   hsync_len = 176, vsync_len = 8, sync = 3, vmode = 1, reserved = {0, 
0, 0, 0, 0, 0}}

(gdb) bt
#0  fbdev_modes_equal (set=0xfb5ed568, req=0xfb5ed4c8) at 
../../../../hw/xfree86/fbdevhw/fbdevhw.c:256
#1  0x40bcfb64 in fbdevHWSetMode (pScrn=0x2142a0, mode=<value optimized 
out>, check=1)
     at ../../../../hw/xfree86/fbdevhw/fbdevhw.c:528
#2  0x40bd07e8 in fbdevHWSetVideoModes (pScrn=0x2142a0) at 
../../../../hw/xfree86/fbdevhw/fbdevhw.c:568
#3  0x40cf5bec in ?? () from /usr/lib/xorg/modules/drivers//fbdev_drv.so
#4  0x00074e88 in InitOutput ()
#5  0x00039d04 in main ()

As you can see, the main video parameters are OK, while the 
monitor/modeline values (pixclock, left_margin, right_margin, 
upper_margin, lower_margin, hsync_len, vsync_len, sync and vmode)
were changed to zero.

Interestingly the stifb driver does not touch those values at all. 
Everything is done inside the main fbmem.c core driver, so it seems it 
could become a generic problem for other framebuffer drivers as well.

I don't see a reason, why a framebuffer driver should care about 
modelines (except for resolution and bpp) at all. OK, on a i386 with 
e.g. vgafb you might be able to change the resolution, but on the hppa 
architecture with the stifb driver this is not the case. It's a fixed 
resolution with (often) a fixed frequency monitor which can't be changed 
at runtime from inside the OS.

Any ideas?
Should I open a debian bug report?
Maybe the fbdev_modes_equal() function should just ignore any changes to 
  the timings?

Helge


xorg log file:
(II) LoadModule: "fbdevhw"
(II) Loading /usr/lib/xorg/modules/linux//libfbdevhw.so
(II) Module fbdevhw: vendor="X.Org Foundation"
         compiled for 1.4.2, module version = 0.0.2
         ABI class: X.Org Video Driver, version 2.0
(II) FBDEV(0): using /dev/fb0
(II) Running in FRAMEBUFFER Mode
(**) FBDEV(0): Depth 8, (--) framebuffer bpp 8
(==) FBDEV(0): Default visual is PseudoColor
(==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDEV(0): hardware: stifb (video memory: 1536kB)
(**) FBDEV(0): Option "fbdev" "/dev/fb0"
(II) FBDEV(0): checking modes against framebuffer device...
(II) FBDEV(0):  mode "1024x768" test failed
(II) FBDEV(0): checking modes against monitor...
(--) FBDEV(0): Virtual size is 1024x768 (pitch 1024)
(**) FBDEV(0):  Built-in mode "current": 28000.0 MHz, 27343.8 kHz, 
35603.8 Hz
(II) FBDEV(0): Modeline "current"x0.0  28000.00  1024 1024 1024 1024 
768 768 768 768 -hsync -vsync -csync (27343.8 kHz)
(==) FBDEV(0): DPI set to (96, 96)
(II) Loading sub module "fb"
(II) LoadModule: "fb"
(II) Loading /usr/lib/xorg/modules//libfb.so
(II) Module fb: vendor="X.Org Foundation"
         compiled for 1.4.2, module version = 1.0.0
         ABI class: X.Org ANSI C Emulation, version 0.3
(**) FBDEV(0): using shadow framebuffer
(II) Loading sub module "shadow"
(II) LoadModule: "shadow"
(II) Loading /usr/lib/xorg/modules//libshadow.so
(II) Module shadow: vendor="X.Org Foundation"
         compiled for 1.4.2, module version = 1.1.0
         ABI class: X.Org ANSI C Emulation, version 0.3
(EE) FBDEV(0): FBIOPUT_VSCREENINFO succeeded but modified mode
(EE) FBDEV(0): mode initialization failed

Fatal server error:
AddScreen/ScreenInit failed for driver 0




Guy Martin wrote:
> Hi Dave,
> 
> This has been introduced in latest Xorg. When it modify the fb device,
> Xorg query the kernel again to make sure changes are the expected ones.
> Apparently, stifb doesn't return what it was expecting.
> 
> You'll find the Xorg code in hw/xfree86/fbdevhw/fbdevhw.c,
> fbdevHWSetMode().
> 
> 
> Cheers,
>   Guy
> 
> 
> On Tue, 5 Aug 2008 21:42:08 -0400
> John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> 
>>>> It wasn't and the default debian kernel didn't boot either.
>>>> I've set the default kernel to jda's 2.6.22.19 patched kernel.
>>> Is there a source tarball of that, or a list of applied patches? I
>>> would very much like to use that "homebrew" kernel on my cluster as
>>> well, until newer kernels are proven reliable enough...
>> I should mention that I've had a problem with starting X with lenny
>> and 2.6.22.  This has been a problem for sometime.  I've tried
>> simplifying the xorg.conf file and adding the mode helper to the
>> kernel, but I haven't found the magic incantation that works.
>>
>> Dave
> 
> 

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> The problem is really caused by hw/xfree86/fbdevhw/fbdevhw.c.
> 
> The driver sets a video mode and then checks if the syscall modified the 
> parameters with the function fbdev_modes_equal():

The maintainers for the fbdevhw.c and fbmem.c files need to be contacted
to determine what fbmem.c is allowed to change and what what fbdev_modes_equal
should be checking.  It's possible Debian is messing with the code as well,
so a Debian bug report wouldn't hurt.

Thanks for looking into this.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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John David Anglin wrote:
>> The problem is really caused by hw/xfree86/fbdevhw/fbdevhw.c.
>>
>> The driver sets a video mode and then checks if the syscall modified the 
>> parameters with the function fbdev_modes_equal():
> 
> The maintainers for the fbdevhw.c and fbmem.c files need to be contacted
> to determine what fbmem.c is allowed to change and what what fbdev_modes_equal
> should be checking.  It's possible Debian is messing with the code as well,
> so a Debian bug report wouldn't hurt.

I've opened a xorg bugzilla for now:
https://bugs.freedesktop.org/show_bug.cgi?id=17153

Helge
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On Mon, Aug 11, 2008 at 10:56:51AM -0400, John David Anglin wrote:
...
> I don't understand why we are talking about HP here.

My bad. I thought HP owned the copy right to the bulk of the code
and Matthew demonstrated they do not.

>  According to
> Matthew, his last commit to this file occured while he worked for
> Genedata.  It is my understanding that copyright normally acrues
> to employers in employment situations.  If Matthew was an employee
> and not an independent contractor at the time, then why are we not
> talking about Genedata, or its subsequent owner?  Subsequent
> employment at HP or their funding of the parisc port shouldn't
> affect the licensing of a file that was previously contributed.

Correct. I thought the work was done by HP employees and that was wrong.

sorry,
grant

> The file appears to be a derived work.  This may also affect its
> copyright status.  The only reason HP should be involved is if the
> file somehow contains material copyrighted by HP.
> 
> The whole licensing issue for the linux program and modules,
> particularly for individual files, appears to be a mess.  The
> COPYING file is vague on the licensing for files.   The recommended
> wording suggested by the FSF isn't used.  I can't see that adding
> MODULE_LICENSE("GPL") lines is going to help much.
> 
> There are several GPL licenses and versions.  The line isn't
> going to mean much to a lawyer.  I really think each file should
> be specific about its licensing in words that can be clearly
> understood.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Currently mips and parisc are the only architectures not yet converted
to the generic compat_sys_ptrace.  The conversion is rather trivial and
only involves splitting the current compat_ptrace handler into a
compat_arch_ptrace with all the meat and the existing compat_sys_ptrace
that does all the boilerplate code, just like the generic sys_ptrace.
To get the generic compat_sys_ptrace you have to add a

	#define __ARCH_WANT_COMPAT_SYS_PTRACE

to ptrace.h for now, but once mips and parisc are converted this will of
course be removed.  Take a look at the powerpc conversion as an example:

	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git&a=commitdiff&h=81e695c026eeda9a97e412fa4f458e5cab2f6c85
	
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From - Thu Nov 08 21:02:41 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [RFC] remove dead code from sys_parisc32.c
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Unless I'm totally missing something get_fd_set32/set_fd_set32 are
completely unused.


Signed-off-by: Christoph Hellwig <hch@lst.de>

Index: linux-2.6/arch/parisc/kernel/sys_parisc32.c
===================================================================
--- linux-2.6.orig/arch/parisc/kernel/sys_parisc32.c	2008-08-16 23:40:26.000000000 -0300
+++ linux-2.6/arch/parisc/kernel/sys_parisc32.c	2008-08-16 23:40:46.000000000 -0300
@@ -284,68 +284,6 @@ int cp_compat_stat(struct kstat *stat, s
 	return err;
 }
 
-/*** copied from mips64 ***/
-/*
- * Ooo, nasty.  We need here to frob 32-bit unsigned longs to
- * 64-bit unsigned longs.
- */
-
-static inline int
-get_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
-{
-	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
-	if (ufdset) {
-		unsigned long odd;
-
-		if (!access_ok(VERIFY_WRITE, ufdset, n*sizeof(u32)))
-			return -EFAULT;
-
-		odd = n & 1UL;
-		n &= ~1UL;
-		while (n) {
-			unsigned long h, l;
-			__get_user(l, ufdset);
-			__get_user(h, ufdset+1);
-			ufdset += 2;
-			*fdset++ = h << 32 | l;
-			n -= 2;
-		}
-		if (odd)
-			__get_user(*fdset, ufdset);
-	} else {
-		/* Tricky, must clear full unsigned long in the
-		 * kernel fdset at the end, this makes sure that
-		 * actually happens.
-		 */
-		memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
-	}
-	return 0;
-}
-
-static inline void
-set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
-{
-	unsigned long odd;
-	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
-
-	if (!ufdset)
-		return;
-
-	odd = n & 1UL;
-	n &= ~1UL;
-	while (n) {
-		unsigned long h, l;
-		l = *fdset++;
-		h = l >> 32;
-		__put_user(l, ufdset);
-		__put_user(h, ufdset+1);
-		ufdset += 2;
-		n -= 2;
-	}
-	if (odd)
-		__put_user(*fdset, ufdset);
-}

From - Thu Nov 08 21:02:41 2018
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From: Helge Deller <deller@gmx.de>
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Christoph Hellwig wrote:
> Currently mips and parisc are the only architectures not yet converted
> to the generic compat_sys_ptrace.  The conversion is rather trivial and
> only involves splitting the current compat_ptrace handler into a
> compat_arch_ptrace with all the meat and the existing compat_sys_ptrace
> that does all the boilerplate code, just like the generic sys_ptrace.
> To get the generic compat_sys_ptrace you have to add a
> 
> 	#define __ARCH_WANT_COMPAT_SYS_PTRACE
> 
> to ptrace.h for now, but once mips and parisc are converted this will of
> course be removed.  Take a look at the powerpc conversion as an example:
> 
> 	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git&a=commitdiff&h=81e695c026eeda9a97e412fa4f458e5cab2f6c85

I could take care of this for parisc. Just looked into the code and it 
seems it could cleanup the code nicely as well.

But I don't want to step on Kyle's toe, since I assume he prepares the 
asm-parisc/ move in the parisc-2.6 git tree during the next days.

Kyle: any comments? Should I prepare some patches? Or do you want to 
take care of the compat_sys_ptrace yourself?

Helge

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From - Thu Nov 08 21:02:41 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.mips.general
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To: deller@gmx.de (Helge Deller)
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> I could take care of this for parisc. Just looked into the code and it 
> seems it could cleanup the code nicely as well.
> 
> But I don't want to step on Kyle's toe, since I assume he prepares the 
> asm-parisc/ move in the parisc-2.6 git tree during the next days.
> 
> Kyle: any comments? Should I prepare some patches? Or do you want to 
> take care of the compat_sys_ptrace yourself?

In my builds, I noticed that there are also about five "new" syscalls 
that aren't wired up for parisc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:02:41 2018
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From: tsbogend@alpha.franken.de (Thomas Bogendoerfer)
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Subject: Re: missing compat_sys_ptrace conversions for mips and parisc
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On Sun, Aug 17, 2008 at 04:29:24AM +0200, Christoph Hellwig wrote:
> Currently mips and parisc are the only architectures not yet converted

I'll send a patch for mips in a couple of minutes to Ralf.

Thomas.

-- 
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good idea.                                                [ RFC1925, 2.3 ]



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> I could take care of this for parisc. Just looked into the code and it 
> seems it could cleanup the code nicely as well.
> 
> But I don't want to step on Kyle's toe, since I assume he prepares the 
> asm-parisc/ move in the parisc-2.6 git tree during the next days.

Whoever does this change, I would appreciate if you could run a gdb 
testsuite before and after and compare the results.

You can just build the debian package. I believe it runs the testsuite 
by default. (although i see from buildd.d.o that the latest version is 
FTBFS because of some header issues?)

thanks
randolph
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From - Thu Nov 08 21:02:41 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [RFC] remove dead code from sys_parisc32.c
Date: Mon, 18 Aug 2008 14:44:52 -0600
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To: Christoph Hellwig <hch@lst.de>
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On Sun, Aug 17, 2008 at 04:41:51AM +0200, Christoph Hellwig wrote:
> Unless I'm totally missing something get_fd_set32/set_fd_set32 are
> completely unused.

I think get_fd_set32 was replaced by compat_get_fd_set.
In any case, I didn't find any users either.

> Signed-off-by: Christoph Hellwig <hch@lst.de>

Ack-by: Grant Grundler <grundler@parisc-linux.org>

thanks,
grant

> 
> Index: linux-2.6/arch/parisc/kernel/sys_parisc32.c
> ===================================================================
> --- linux-2.6.orig/arch/parisc/kernel/sys_parisc32.c	2008-08-16 23:40:26.000000000 -0300
> +++ linux-2.6/arch/parisc/kernel/sys_parisc32.c	2008-08-16 23:40:46.000000000 -0300
> @@ -284,68 +284,6 @@ int cp_compat_stat(struct kstat *stat, s
>  	return err;
>  }
>  
> -/*** copied from mips64 ***/
> -/*
> - * Ooo, nasty.  We need here to frob 32-bit unsigned longs to
> - * 64-bit unsigned longs.
> - */
> -
> -static inline int
> -get_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
> -{
> -	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
> -	if (ufdset) {
> -		unsigned long odd;
> -
> -		if (!access_ok(VERIFY_WRITE, ufdset, n*sizeof(u32)))
> -			return -EFAULT;
> -
> -		odd = n & 1UL;
> -		n &= ~1UL;
> -		while (n) {
> -			unsigned long h, l;
> -			__get_user(l, ufdset);
> -			__get_user(h, ufdset+1);
> -			ufdset += 2;
> -			*fdset++ = h << 32 | l;
> -			n -= 2;
> -		}
> -		if (odd)
> -			__get_user(*fdset, ufdset);
> -	} else {
> -		/* Tricky, must clear full unsigned long in the
> -		 * kernel fdset at the end, this makes sure that
> -		 * actually happens.
> -		 */
> -		memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
> -	}
> -	return 0;
> -}
> -
> -static inline void
> -set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
> -{
> -	unsigned long odd;
> -	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
> -
> -	if (!ufdset)
> -		return;
> -
> -	odd = n & 1UL;
> -	n &= ~1UL;
> -	while (n) {
> -		unsigned long h, l;
> -		l = *fdset++;
> -		h = l >> 32;
> -		__put_user(l, ufdset);
> -		__put_user(h, ufdset+1);
> -		ufdset += 2;
> -		n -= 2;
> -	}
> -	if (odd)
> -		__put_user(*fdset, ufdset);
> -}
> -
>  struct msgbuf32 {
>      int mtype;
>      char mtext[1];
> --
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From - Thu Nov 08 21:02:41 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: missing compat_sys_ptrace conversions for mips and parisc
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Cc: "Helge Deller" <deller@gmx.de>, "Kyle McMartin" <kyle@mcmartin.ca>,
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On Sun, Aug 17, 2008 at 9:42 PM, Randolph Chung <randolph@tausq.org> wrote:
>> I could take care of this for parisc. Just looked into the code and it
>> seems it could cleanup the code nicely as well.
>>
>> But I don't want to step on Kyle's toe, since I assume he prepares the
>> asm-parisc/ move in the parisc-2.6 git tree during the next days.
>
> Whoever does this change, I would appreciate if you could run a gdb
> testsuite before and after and compare the results.
>
> You can just build the debian package. I believe it runs the testsuite by
> default. (although i see from buildd.d.o that the latest version is FTBFS
> because of some header issues?)

This is fixed by my changes in upstream libc ports.

The kernel no longer provides an empty user.h, and therefore libc
should not include <linux/user.h> in <sys/user.h>, but instead provide
an empty version to satisfy any userspace application that may try to
include the file.

On hppa linux/user.h has always been empty.

Cheers,
Carlos.
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From - Thu Nov 08 21:02:41 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [RFC] [PATCH] compat_sys_ptrace conversions for parisc
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This is a multi-part message in MIME format.
--------------060806080903020501070303
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Christoph Hellwig wrote:
> Currently mips and parisc are the only architectures not yet converted
> to the generic compat_sys_ptrace.  The conversion is rather trivial and
> only involves splitting the current compat_ptrace handler into a
> compat_arch_ptrace with all the meat and the existing compat_sys_ptrace
> that does all the boilerplate code, just like the generic sys_ptrace.
> To get the generic compat_sys_ptrace you have to add a
> 
> 	#define __ARCH_WANT_COMPAT_SYS_PTRACE
> 
> to ptrace.h for now, but once mips and parisc are converted this will of
> course be removed.  Take a look at the powerpc conversion as an example:
> 
> 	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git&a=commitdiff&h=81e695c026eeda9a97e412fa4f458e5cab2f6c85

This patch does the compat_sys_ptrace conversion for parisc.
In addition it does convert the parisc ptrace code to use the
architecture-independent ptrace infrastructure instead of own coding.

I did run the gdb test case on 32bit and the result was identical.
Sadly I didn't got a 64bit kernel to boot yet (due to other reasons),
which is why I couldn't verify the new compat code. Nevertheless, since
the compat code did compiled successfully for me, and since it is really
small now, and I don't expect any problems and as such I'm sending this
patch here as RFC.

The size of the patch became pretty big, but mostly it's about deleting 
now unneeded code, shuffling some code around and adapting the indenting.

Signed-off-by: Helge Deller <deller@gmx.de>

  arch/parisc/kernel/ptrace.c        |  429
++++++++++++++-----------------------
  arch/parisc/kernel/syscall_table.S |    2
  include/asm-parisc/ptrace.h        |   10
  3 files changed, 183 insertions(+), 258 deletions(-)


--------------060806080903020501070303
Content-Type: text/x-patch;
 name="ptrace.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="ptrace.patch"

diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 49c6379..90904f9 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -4,6 +4,7 @@
  * Copyright (C) 2000 Hewlett-Packard Co, Linuxcare Inc.
  * Copyright (C) 2000 Matthew Wilcox <matthew@wil.cx>
  * Copyright (C) 2000 David Huggins-Daines <dhd@debian.org>
+ * Copyright (C) 2008 Helge Deller <deller@gmx.de>
  */
 
 #include <linux/kernel.h>
@@ -27,15 +28,149 @@
 /* PSW bits we allow the debugger to modify */
 #define USER_PSW_BITS	(PSW_N | PSW_V | PSW_CB)
 
-#undef DEBUG_PTRACE
+/*
+ * Called by kernel/ptrace.c when detaching..
+ *
+ * Make sure single step bits etc are not set.
+ */
+void ptrace_disable(struct task_struct *task)
+{
+	task->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP);
 
-#ifdef DEBUG_PTRACE
-#define DBG(x...)	printk(x)
-#else
-#define DBG(x...)
-#endif
+	/* make sure the trap bits are not set */
+	pa_psw(task)->r = 0;
+	pa_psw(task)->t = 0;
+	pa_psw(task)->h = 0;
+	pa_psw(task)->l = 0;
+}
+
+/*
+ * The following functions are called by ptrace_resume() when
+ * enabling or disabling single/block tracing.
+ */
+void user_disable_single_step(struct task_struct *task)
+{
+	ptrace_disable(task);
+}
+
+void user_enable_single_step(struct task_struct *task)
+{
+	task->ptrace &= ~PT_BLOCKSTEP;
+	task->ptrace |= PT_SINGLESTEP;
+
+	if (pa_psw(task)->n) {
+		struct siginfo si;
+
+		/* Nullified, just crank over the queue. */
+		task_regs(task)->iaoq[0] = task_regs(task)->iaoq[1];
+		task_regs(task)->iasq[0] = task_regs(task)->iasq[1];
+		task_regs(task)->iaoq[1] = task_regs(task)->iaoq[0] + 4;
+		pa_psw(task)->n = 0;
+		pa_psw(task)->x = 0;
+		pa_psw(task)->y = 0;
+		pa_psw(task)->z = 0;
+		pa_psw(task)->b = 0;
+		ptrace_disable(task);
+		/* Don't wake up the task, but let the
+		   parent know something happened. */
+		si.si_code = TRAP_TRACE;
+		si.si_addr = (void __user *) (task_regs(task)->iaoq[0] & ~3);
+		si.si_signo = SIGTRAP;
+		si.si_errno = 0;
+		force_sig_info(SIGTRAP, &si, task);
+		/* notify_parent(task, SIGCHLD); */
+		return;
+	}
+
+	/* Enable recovery counter traps.  The recovery counter
+	 * itself will be set to zero on a task switch.  If the
+	 * task is suspended on a syscall then the syscall return
+	 * path will overwrite the recovery counter with a suitable
+	 * value such that it traps once back in user space.  We
+	 * disable interrupts in the tasks PSW here also, to avoid
+	 * interrupts while the recovery counter is decrementing.
+	 */
+	pa_psw(task)->r = 1;
+	pa_psw(task)->t = 0;
+	pa_psw(task)->h = 0;
+	pa_psw(task)->l = 0;
+}
+
+void user_enable_block_step(struct task_struct *task)
+{
+	task->ptrace &= ~PT_SINGLESTEP;
+	task->ptrace |= PT_BLOCKSTEP;
+
+	/* Enable taken branch trap. */
+	pa_psw(task)->r = 0;
+	pa_psw(task)->t = 1;
+	pa_psw(task)->h = 0;
+	pa_psw(task)->l = 0;
+}
+
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+{
+	unsigned long tmp;
+	long ret = -EIO;
 
-#ifdef CONFIG_64BIT
+	switch (request) {
+
+	/* Read the word at location addr in the USER area.  For ptraced
+	   processes, the kernel saves all regs on a syscall. */
+	case PTRACE_PEEKUSR:
+		if ((addr & (sizeof(long)-1)) ||
+		    (unsigned long) addr >= sizeof(struct pt_regs))
+			break;
+		tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
+		ret = put_user(tmp, (unsigned long *) data);
+		break;
+
+	/* Write the word at location addr in the USER area.  This will need
+	   to change when the kernel no longer saves all regs on a syscall.
+	   FIXME.  There is a problem at the moment in that r3-r18 are only
+	   saved if the process is ptraced on syscall entry, and even then
+	   those values are overwritten by actual register values on syscall
+	   exit. */
+	case PTRACE_POKEUSR:
+		/* Some register values written here may be ignored in
+		 * entry.S:syscall_restore_rfi; e.g. iaoq is written with
+		 * r31/r31+4, and not with the values in pt_regs.
+		 */
+		if (addr == PT_PSW) {
+			/* Allow writing to Nullify, Divide-step-correction,
+			 * and carry/borrow bits.
+			 * BEWARE, if you set N, and then single step, it won't
+			 * stop on the nullified instruction.
+			 */
+			data &= USER_PSW_BITS;
+			task_regs(child)->gr[0] &= ~USER_PSW_BITS;
+			task_regs(child)->gr[0] |= data;
+			ret = 0;
+			break;
+		}
+
+		if ((addr & (sizeof(long)-1)) ||
+		    (unsigned long) addr >= sizeof(struct pt_regs))
+			break;
+		if ((addr >= PT_GR1 && addr <= PT_GR31) ||
+				addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
+				(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
+				addr == PT_SAR) {
+			*(unsigned long *) ((char *) task_regs(child) + addr) = data;
+			ret = 0;
+		}
+		break;
+
+	default:
+		ret = ptrace_request(child, request, addr, data);
+		break;
+	}
+
+	return ret;
+}
+
+
+#ifdef CONFIG_COMPAT
 
 /* This function is needed to translate 32 bit pt_regs offsets in to
  * 64 bit pt_regs offsets.  For example, a 32 bit gdb under a 64 bit kernel
@@ -61,106 +196,25 @@ static long translate_usr_offset(long offset)
 	else
 		return -1;
 }
-#endif
 
-/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure single step bits etc are not set.
- */
-void ptrace_disable(struct task_struct *child)
+long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
+			compat_ulong_t addr, compat_ulong_t data)
 {
-	/* make sure the trap bits are not set */
-	pa_psw(child)->r = 0;
-	pa_psw(child)->t = 0;
-	pa_psw(child)->h = 0;
-	pa_psw(child)->l = 0;
-}
-
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
-{
-	long ret;
-#ifdef DEBUG_PTRACE
-	long oaddr=addr, odata=data;
-#endif
+	compat_uint_t tmp;
+	long ret = -EIO;
 
 	switch (request) {
-	case PTRACE_PEEKTEXT: /* read word at location addr. */ 
-	case PTRACE_PEEKDATA: {
-#ifdef CONFIG_64BIT
-		if (__is_compat_task(child)) {
-			int copied;
-			unsigned int tmp;
-
-			addr &= 0xffffffffL;
-			copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
-			ret = -EIO;
-			if (copied != sizeof(tmp))
-				goto out_tsk;
-			ret = put_user(tmp,(unsigned int *) data);
-			DBG("sys_ptrace(PEEK%s, %d, %lx, %lx) returning %ld, data %x\n",
-				request == PTRACE_PEEKTEXT ? "TEXT" : "DATA",
-				pid, oaddr, odata, ret, tmp);
-		}
-		else
-#endif
-			ret = generic_ptrace_peekdata(child, addr, data);
-		goto out_tsk;
-	}
 
-	/* when I and D space are separate, this will have to be fixed. */
-	case PTRACE_POKETEXT: /* write the word at location addr. */
-	case PTRACE_POKEDATA:
-		ret = 0;
-#ifdef CONFIG_64BIT
-		if (__is_compat_task(child)) {
-			unsigned int tmp = (unsigned int)data;
-			DBG("sys_ptrace(POKE%s, %d, %lx, %lx)\n",
-				request == PTRACE_POKETEXT ? "TEXT" : "DATA",
-				pid, oaddr, odata);
-			addr &= 0xffffffffL;
-			if (access_process_vm(child, addr, &tmp, sizeof(tmp), 1) == sizeof(tmp))
-				goto out_tsk;
-		}
-		else
-#endif
-		{
-			if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
-				goto out_tsk;
-		}
-		ret = -EIO;
-		goto out_tsk;
-
-	/* Read the word at location addr in the USER area.  For ptraced
-	   processes, the kernel saves all regs on a syscall. */
-	case PTRACE_PEEKUSR: {
-		ret = -EIO;
-#ifdef CONFIG_64BIT
-		if (__is_compat_task(child)) {
-			unsigned int tmp;
-
-			if (addr & (sizeof(int)-1))
-				goto out_tsk;
-			if ((addr = translate_usr_offset(addr)) < 0)
-				goto out_tsk;
-
-			tmp = *(unsigned int *) ((char *) task_regs(child) + addr);
-			ret = put_user(tmp, (unsigned int *) data);
-			DBG("sys_ptrace(PEEKUSR, %d, %lx, %lx) returning %ld, addr %lx, data %x\n",
-				pid, oaddr, odata, ret, addr, tmp);
-		}
-		else
-#endif
-		{
-			unsigned long tmp;
+	case PTRACE_PEEKUSR:
+		if (addr & (sizeof(compat_uint_t)-1))
+			break;
+		addr = translate_usr_offset(addr);
+		if (addr < 0)
+			break;
 
-			if ((addr & (sizeof(long)-1)) || (unsigned long) addr >= sizeof(struct pt_regs))
-				goto out_tsk;
-			tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
-			ret = put_user(tmp, (unsigned long *) data);
-		}
-		goto out_tsk;
-	}
+		tmp = *(compat_uint_t *) ((char *) task_regs(child) + addr);
+		ret = put_user(tmp, (compat_uint_t *) (unsigned long) data);
+		break;
 
 	/* Write the word at location addr in the USER area.  This will need
 	   to change when the kernel no longer saves all regs on a syscall.
@@ -169,185 +223,46 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	   those values are overwritten by actual register values on syscall
 	   exit. */
 	case PTRACE_POKEUSR:
-		ret = -EIO;
 		/* Some register values written here may be ignored in
 		 * entry.S:syscall_restore_rfi; e.g. iaoq is written with
 		 * r31/r31+4, and not with the values in pt_regs.
 		 */
-		 /* PT_PSW=0, so this is valid for 32 bit processes under 64
-		 * bit kernels.
-		 */
 		if (addr == PT_PSW) {
-			/* PT_PSW=0, so this is valid for 32 bit processes
-			 * under 64 bit kernels.
-			 *
-			 * Allow writing to Nullify, Divide-step-correction,
-			 * and carry/borrow bits.
-			 * BEWARE, if you set N, and then single step, it won't
-			 * stop on the nullified instruction.
+			/* Since PT_PSW==0, it is valid for 32 bit processes
+			 * under 64 bit kernels as well.
 			 */
-			DBG("sys_ptrace(POKEUSR, %d, %lx, %lx)\n",
-				pid, oaddr, odata);
-			data &= USER_PSW_BITS;
-			task_regs(child)->gr[0] &= ~USER_PSW_BITS;
-			task_regs(child)->gr[0] |= data;
-			ret = 0;
-			goto out_tsk;
-		}
-#ifdef CONFIG_64BIT
-		if (__is_compat_task(child)) {
-			if (addr & (sizeof(int)-1))
-				goto out_tsk;
-			if ((addr = translate_usr_offset(addr)) < 0)
-				goto out_tsk;
-			DBG("sys_ptrace(POKEUSR, %d, %lx, %lx) addr %lx\n",
-				pid, oaddr, odata, addr);
+			ret = arch_ptrace(child, request, addr, data);
+		} else {
+			if (addr & (sizeof(compat_uint_t)-1))
+				break;
+			addr = translate_usr_offset(addr);
+			if (addr < 0)
+				break;
 			if (addr >= PT_FR0 && addr <= PT_FR31 + 4) {
 				/* Special case, fp regs are 64 bits anyway */
-				*(unsigned int *) ((char *) task_regs(child) + addr) = data;
+				*(__u64 *) ((char *) task_regs(child) + addr) = data;
 				ret = 0;
 			}
 			else if ((addr >= PT_GR1+4 && addr <= PT_GR31+4) ||
 					addr == PT_IAOQ0+4 || addr == PT_IAOQ1+4 ||
 					addr == PT_SAR+4) {
 				/* Zero the top 32 bits */
-				*(unsigned int *) ((char *) task_regs(child) + addr - 4) = 0;
-				*(unsigned int *) ((char *) task_regs(child) + addr) = data;
+				*(__u32 *) ((char *) task_regs(child) + addr - 4) = 0;
+				*(__u32 *) ((char *) task_regs(child) + addr) = data;
 				ret = 0;
 			}
-			goto out_tsk;
 		}
-		else
-#endif
-		{
-			if ((addr & (sizeof(long)-1)) || (unsigned long) addr >= sizeof(struct pt_regs))
-				goto out_tsk;
-			if ((addr >= PT_GR1 && addr <= PT_GR31) ||
-					addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
-					(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
-					addr == PT_SAR) {
-				*(unsigned long *) ((char *) task_regs(child) + addr) = data;
-				ret = 0;
-			}
-			goto out_tsk;
-		}
-
-	case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
-	case PTRACE_CONT:
-		ret = -EIO;
-		DBG("sys_ptrace(%s)\n",
-			request == PTRACE_SYSCALL ? "SYSCALL" : "CONT");
-		if (!valid_signal(data))
-			goto out_tsk;
-		child->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP);
-		if (request == PTRACE_SYSCALL) {
-			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		} else {
-			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		}		
-		child->exit_code = data;
-		goto out_wake_notrap;
-
-	case PTRACE_KILL:
-		/*
-		 * make the child exit.  Best I can do is send it a
-		 * sigkill.  perhaps it should be put in the status
-		 * that it wants to exit.
-		 */
-		ret = 0;
-		DBG("sys_ptrace(KILL)\n");
-		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
-			goto out_tsk;
-		child->exit_code = SIGKILL;
-		goto out_wake_notrap;
-
-	case PTRACE_SINGLEBLOCK:
-		DBG("sys_ptrace(SINGLEBLOCK)\n");
-		ret = -EIO;
-		if (!valid_signal(data))
-			goto out_tsk;
-		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		child->ptrace &= ~PT_SINGLESTEP;
-		child->ptrace |= PT_BLOCKSTEP;
-		child->exit_code = data;
-
-		/* Enable taken branch trap. */
-		pa_psw(child)->r = 0;
-		pa_psw(child)->t = 1;
-		pa_psw(child)->h = 0;
-		pa_psw(child)->l = 0;
-		goto out_wake;
-
-	case PTRACE_SINGLESTEP:
-		DBG("sys_ptrace(SINGLESTEP)\n");
-		ret = -EIO;
-		if (!valid_signal(data))
-			goto out_tsk;
-
-		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		child->ptrace &= ~PT_BLOCKSTEP;
-		child->ptrace |= PT_SINGLESTEP;
-		child->exit_code = data;
-
-		if (pa_psw(child)->n) {
-			struct siginfo si;
-
-			/* Nullified, just crank over the queue. */
-			task_regs(child)->iaoq[0] = task_regs(child)->iaoq[1];
-			task_regs(child)->iasq[0] = task_regs(child)->iasq[1];
-			task_regs(child)->iaoq[1] = task_regs(child)->iaoq[0] + 4;
-			pa_psw(child)->n = 0;
-			pa_psw(child)->x = 0;
-			pa_psw(child)->y = 0;
-			pa_psw(child)->z = 0;
-			pa_psw(child)->b = 0;
-			ptrace_disable(child);
-			/* Don't wake up the child, but let the
-			   parent know something happened. */
-			si.si_code = TRAP_TRACE;
-			si.si_addr = (void __user *) (task_regs(child)->iaoq[0] & ~3);
-			si.si_signo = SIGTRAP;
-			si.si_errno = 0;
-			force_sig_info(SIGTRAP, &si, child);
-			//notify_parent(child, SIGCHLD);
-			//ret = 0;
-			goto out_wake;
-		}
-
-		/* Enable recovery counter traps.  The recovery counter
-		 * itself will be set to zero on a task switch.  If the
-		 * task is suspended on a syscall then the syscall return
-		 * path will overwrite the recovery counter with a suitable
-		 * value such that it traps once back in user space.  We
-		 * disable interrupts in the childs PSW here also, to avoid
-		 * interrupts while the recovery counter is decrementing.
-		 */
-		pa_psw(child)->r = 1;
-		pa_psw(child)->t = 0;
-		pa_psw(child)->h = 0;
-		pa_psw(child)->l = 0;
-		/* give it a chance to run. */
-		goto out_wake;
-
-	case PTRACE_GETEVENTMSG:
-                ret = put_user(child->ptrace_message, (unsigned int __user *) data);
-		goto out_tsk;
+		break;
 
 	default:
-		ret = ptrace_request(child, request, addr, data);
-		goto out_tsk;
+		ret = compat_ptrace_request(child, request, addr, data);
+		break;
 	}
 
-out_wake_notrap:
-	ptrace_disable(child);
-out_wake:
-	wake_up_process(child);
-	ret = 0;
-out_tsk:
-	DBG("arch_ptrace(%ld, %d, %lx, %lx) returning %ld\n",
-		request, pid, oaddr, odata, ret);
 	return ret;
 }
+#endif
+
 
 void syscall_trace(void)
 {



diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 6b5ac38..e719f27 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -87,7 +87,7 @@
 	ENTRY_SAME(setuid)
 	ENTRY_SAME(getuid)
 	ENTRY_COMP(stime)		/* 25 */
-	ENTRY_SAME(ptrace)
+	ENTRY_COMP(ptrace)
 	ENTRY_SAME(alarm)
 	/* see stat comment */
 	ENTRY_COMP(newfstat)


diff --git a/include/asm-parisc/ptrace.h b/include/asm-parisc/ptrace.h
index 93f990e..f6d14b3 100644
--- a/include/asm-parisc/ptrace.h
+++ b/include/asm-parisc/ptrace.h
@@ -45,6 +45,16 @@ struct pt_regs {
 #define PTRACE_SINGLEBLOCK	12	/* resume execution until next branch */
 #ifdef __KERNEL__
 
+#define __ARCH_WANT_COMPAT_SYS_PTRACE
+
+struct task_struct;
+#define arch_has_single_step()	1
+void user_disable_single_step(struct task_struct *task);
+void user_enable_single_step(struct task_struct *task);
+
+#define arch_has_block_step()	1
+void user_enable_block_step(struct task_struct *task);
+
 /* XXX should we use iaoq[1] or iaoq[0] ? */
 #define user_mode(regs)			(((regs)->iaoq[0] & 3) ? 1 : 0)
 #define user_space(regs)		(((regs)->iasq[1] != 0) ? 1 : 0)

--------------060806080903020501070303--
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From - Thu Nov 08 21:02:42 2018
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On Sun, Aug 17, 2008 at 04:41:51AM +0200, Christoph Hellwig wrote:
> Unless I'm totally missing something get_fd_set32/set_fd_set32 are
> completely unused.
> 

thanks, hch.

cheers, kyle
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On Mon, 2008-08-18 at 15:21 +0200, Takashi Iwai wrote:
> I've been trying to fix a long-standing bug in ALSA, the mmap of
> pages via dma_mmap_coherent().  Since the sound drivers need to expose
> the whole buffer via mmap and the buffers are allocated via
> dma_alloc_coherent(), it causes Oops on some architectures like MIPS.
> One of the fix patches is this one, the addition of
> dma_mmap_coherent() to MIPS architecture.
> 
> This implementation is pretty lazy (and untested) as you see below.
> 
> The whole patches are found on topic/dma-fix branch on sound-2.6 git
> tree
>   git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6.git
> 
> The gitweb URL of the branch is:
>   http://git.kernel.org/?p=linux/kernel/git/tiwai/sound-2.6.git;a=shortlog;h=topic/dma-fix
> 
> Any review and comments would be appreciated.

I've inlined the parisc piece ... although it would be helpful if you
had posted it to the parisc list rather than letting the mips people
forward it.

I'm afraid there are several problems.  The first is that it doesn't do
what you want.  You can't map a coherent page to userspace (which is at
a non congruent address on parisc) and still expect it to be
coherent ... there's going to have to be fiddling with the page table
caches to make sure coherency isn't destroyed by aliasing effects

Secondly, it's incomplete ... there are two other instances of
hppa_dma_ops in drivers/parisc ccio-dma.c and sba_iommu.c that would
also need to have this added

Finally, there's the meta observation that this is exactly the type of
thing that the framebuffer code already does, so why reinvent a new way
of doing it rather than coming up with the correct infrastructure and
making them both use it?

James

---

From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 17 Jun 2008 14:39:05 +0000 (+0200)
Subject: parisc: implement dma_mmap_coherent()
X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftiwai%2Fsound-2.6.git;a=commitdiff_plain;h=7a9dbc6e9d4798fd00005faebeff720c87f098df;hp=fb959151b618360fc74b8978d918182c82f67a4a

parisc: implement dma_mmap_coherent()

A lazy version of dma_mmap_coherent() implementation for PA-RISC.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index ccd61b9..ddeecc2 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -545,6 +545,19 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
 		flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
 }
 
+static int pa11_dma_mmap_coherent(struct device *dev,
+				  struct vm_area_struct *vma,
+				  void *cpu_addr, dma_addr_t handle,
+				  size_t size)
+{
+	struct page *pg;
+	cpu_addr = __va(handle);
+	pg = virt_to_page(cpu_addr);
+	return remap_pfn_range(vma, vma->vm_start,
+			       page_to_pfn(pg) + vma->vm_pgoff,
+			       size, vma->vm_page_prot);
+}
+
 struct hppa_dma_ops pcxl_dma_ops = {
 	.dma_supported =	pa11_dma_supported,
 	.alloc_consistent =	pa11_dma_alloc_consistent,
@@ -558,6 +571,7 @@ struct hppa_dma_ops pcxl_dma_ops = {
 	.dma_sync_single_for_device = pa11_dma_sync_single_for_device,
 	.dma_sync_sg_for_cpu = pa11_dma_sync_sg_for_cpu,
 	.dma_sync_sg_for_device = pa11_dma_sync_sg_for_device,
+	.mmap_coherent =	pa11_dma_mmap_coherent,
 };
 
 static void *fail_alloc_consistent(struct device *dev, size_t size,
@@ -598,4 +612,5 @@ struct hppa_dma_ops pcx_dma_ops = {
 	.dma_sync_single_for_device =	pa11_dma_sync_single_for_device,
 	.dma_sync_sg_for_cpu =		pa11_dma_sync_sg_for_cpu,
 	.dma_sync_sg_for_device =	pa11_dma_sync_sg_for_device,
+	.mmap_coherent =	pa11_dma_mmap_coherent,
 };
diff --git a/include/asm-parisc/dma-mapping.h b/include/asm-parisc/dma-mapping.h
index 53af696..a66235b 100644
--- a/include/asm-parisc/dma-mapping.h
+++ b/include/asm-parisc/dma-mapping.h
@@ -19,6 +19,9 @@ struct hppa_dma_ops {
 	void (*dma_sync_single_for_device)(struct device *dev, dma_addr_t iova, unsigned long offset, size_t size, enum dma_data_direction direction);
 	void (*dma_sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
 	void (*dma_sync_sg_for_device)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
+	int (*mmap_coherent)(struct device *dev, struct vm_area_struct *vma,
+			     void *cpu_addr, dma_addr_t handle, size_t size);
+
 };
 
 /*
@@ -204,6 +207,13 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 		flush_kernel_dcache_range((unsigned long)vaddr, size);
 }
 
+static inline int
+dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
+		  void *cpu_addr, dma_addr_t handle, size_t size)
+{
+	return hppa_dma_ops->mmap_coherent(dev, vma, cpu_addr, handle, size);
+}
+
 static inline void *
 parisc_walk_tree(struct device *dev)
 {

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From - Thu Nov 08 21:02:42 2018
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From: Takashi Iwai <tiwai@suse.de>
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Subject: Re: [PATCH] mips: Add dma_mmap_coherent()
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	Parisc List <linux-parisc@vger.kernel.org>
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At Wed, 20 Aug 2008 11:27:12 -0500,
James Bottomley wrote:
> 
> On Mon, 2008-08-18 at 15:21 +0200, Takashi Iwai wrote:
> > I've been trying to fix a long-standing bug in ALSA, the mmap of
> > pages via dma_mmap_coherent().  Since the sound drivers need to expose
> > the whole buffer via mmap and the buffers are allocated via
> > dma_alloc_coherent(), it causes Oops on some architectures like MIPS.
> > One of the fix patches is this one, the addition of
> > dma_mmap_coherent() to MIPS architecture.
> > 
> > This implementation is pretty lazy (and untested) as you see below.
> > 
> > The whole patches are found on topic/dma-fix branch on sound-2.6 git
> > tree
> >   git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6.git
> > 
> > The gitweb URL of the branch is:
> >   http://git.kernel.org/?p=linux/kernel/git/tiwai/sound-2.6.git;a=shortlog;h=topic/dma-fix
> > 
> > Any review and comments would be appreciated.
> 
> I've inlined the parisc piece ... although it would be helpful if you
> had posted it to the parisc list rather than letting the mips people
> forward it.

Oh sorry, I just wanted to discuss things first about MIPS
implementation to sort things out (I did with Ben about PPC patch).
But, appears better to discuss together, and I'm happy that you join.

> I'm afraid there are several problems.  The first is that it doesn't do
> what you want.  You can't map a coherent page to userspace (which is at
> a non congruent address on parisc) and still expect it to be
> coherent ... there's going to have to be fiddling with the page table
> caches to make sure coherency isn't destroyed by aliasing effects

Hmm...  how bad would be the coherency with such a simple mmap method?
In most cases, we don't need the "perfect" coherency.  Usually one
process mmaps the whole buffer and keep reading/writing.  There is
another use case (sharing the mmapped buffer by multiple processes),
but this can be disabled if we know it's not feasible beforehand.

> Secondly, it's incomplete ... there are two other instances of
> hppa_dma_ops in drivers/parisc ccio-dma.c and sba_iommu.c that would
> also need to have this added

OK, that must be fixed.

> Finally, there's the meta observation that this is exactly the type of
> thing that the framebuffer code already does, so why reinvent a new way
> of doing it rather than coming up with the correct infrastructure and
> making them both use it?

I don't think the method framebuffer using is so portable as reusable.
And, when the buffer is allocated via dma_mmap_coherent(), the fb
method can't be used anyway.  On x86 and others, dma_alloc_coherent()
is the right method to allocate pages, I suppose.


Thanks!

Takashi

> 
> James
> 
> ---
> 
> From: Takashi Iwai <tiwai@suse.de>
> Date: Tue, 17 Jun 2008 14:39:05 +0000 (+0200)
> Subject: parisc: implement dma_mmap_coherent()
> X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftiwai%2Fsound-2.6.git;a=commitdiff_plain;h=7a9dbc6e9d4798fd00005faebeff720c87f098df;hp=fb959151b618360fc74b8978d918182c82f67a4a
> 
> parisc: implement dma_mmap_coherent()
> 
> A lazy version of dma_mmap_coherent() implementation for PA-RISC.
> 
> Signed-off-by: Takashi Iwai <tiwai@suse.de>
> ---
> 
> diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
> index ccd61b9..ddeecc2 100644
> --- a/arch/parisc/kernel/pci-dma.c
> +++ b/arch/parisc/kernel/pci-dma.c
> @@ -545,6 +545,19 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
>  		flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
>  }
>  
> +static int pa11_dma_mmap_coherent(struct device *dev,
> +				  struct vm_area_struct *vma,
> +				  void *cpu_addr, dma_addr_t handle,
> +				  size_t size)
> +{
> +	struct page *pg;
> +	cpu_addr = __va(handle);
> +	pg = virt_to_page(cpu_addr);
> +	return remap_pfn_range(vma, vma->vm_start,
> +			       page_to_pfn(pg) + vma->vm_pgoff,
> +			       size, vma->vm_page_prot);
> +}
> +
>  struct hppa_dma_ops pcxl_dma_ops = {
>  	.dma_supported =	pa11_dma_supported,
>  	.alloc_consistent =	pa11_dma_alloc_consistent,
> @@ -558,6 +571,7 @@ struct hppa_dma_ops pcxl_dma_ops = {
>  	.dma_sync_single_for_device = pa11_dma_sync_single_for_device,
>  	.dma_sync_sg_for_cpu = pa11_dma_sync_sg_for_cpu,
>  	.dma_sync_sg_for_device = pa11_dma_sync_sg_for_device,
> +	.mmap_coherent =	pa11_dma_mmap_coherent,
>  };
>  
>  static void *fail_alloc_consistent(struct device *dev, size_t size,
> @@ -598,4 +612,5 @@ struct hppa_dma_ops pcx_dma_ops = {
>  	.dma_sync_single_for_device =	pa11_dma_sync_single_for_device,
>  	.dma_sync_sg_for_cpu =		pa11_dma_sync_sg_for_cpu,
>  	.dma_sync_sg_for_device =	pa11_dma_sync_sg_for_device,
> +	.mmap_coherent =	pa11_dma_mmap_coherent,
>  };
> diff --git a/include/asm-parisc/dma-mapping.h b/include/asm-parisc/dma-mapping.h
> index 53af696..a66235b 100644
> --- a/include/asm-parisc/dma-mapping.h
> +++ b/include/asm-parisc/dma-mapping.h
> @@ -19,6 +19,9 @@ struct hppa_dma_ops {
>  	void (*dma_sync_single_for_device)(struct device *dev, dma_addr_t iova, unsigned long offset, size_t size, enum dma_data_direction direction);
>  	void (*dma_sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
>  	void (*dma_sync_sg_for_device)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
> +	int (*mmap_coherent)(struct device *dev, struct vm_area_struct *vma,
> +			     void *cpu_addr, dma_addr_t handle, size_t size);
> +
>  };
>  
>  /*
> @@ -204,6 +207,13 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size,
>  		flush_kernel_dcache_range((unsigned long)vaddr, size);
>  }
>  
> +static inline int
> +dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
> +		  void *cpu_addr, dma_addr_t handle, size_t size)
> +{
> +	return hppa_dma_ops->mmap_coherent(dev, vma, cpu_addr, handle, size);
> +}
> +
>  static inline void *
>  parisc_walk_tree(struct device *dev)
>  {
> 
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On Wed, 2008-08-20 at 18:53 +0200, Takashi Iwai wrote:
> > I'm afraid there are several problems.  The first is that it doesn't do
> > what you want.  You can't map a coherent page to userspace (which is at
> > a non congruent address on parisc) and still expect it to be
> > coherent ... there's going to have to be fiddling with the page table
> > caches to make sure coherency isn't destroyed by aliasing effects
> 
> Hmm...  how bad would be the coherency with such a simple mmap method?
> In most cases, we don't need the "perfect" coherency.  Usually one
> process mmaps the whole buffer and keep reading/writing.  There is
> another use case (sharing the mmapped buffer by multiple processes),
> but this can be disabled if we know it's not feasible beforehand.

Unfortunately, the incoherency is between the user and the kernel.
That's where the aliasing effects occur, so realistically, even though
you've mapped coherent memory to the user, the coherency of that memory
is only device <-> kernel.  When the any single user space process
writes to it, the device won't see the write unless the user issues a
flush.

James


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At Wed, 20 Aug 2008 12:58:08 -0500,
James Bottomley wrote:
> 
> On Wed, 2008-08-20 at 18:53 +0200, Takashi Iwai wrote:
> > > I'm afraid there are several problems.  The first is that it doesn't do
> > > what you want.  You can't map a coherent page to userspace (which is at
> > > a non congruent address on parisc) and still expect it to be
> > > coherent ... there's going to have to be fiddling with the page table
> > > caches to make sure coherency isn't destroyed by aliasing effects
> > 
> > Hmm...  how bad would be the coherency with such a simple mmap method?
> > In most cases, we don't need the "perfect" coherency.  Usually one
> > process mmaps the whole buffer and keep reading/writing.  There is
> > another use case (sharing the mmapped buffer by multiple processes),
> > but this can be disabled if we know it's not feasible beforehand.
> 
> Unfortunately, the incoherency is between the user and the kernel.
> That's where the aliasing effects occur, so realistically, even though
> you've mapped coherent memory to the user, the coherency of that memory
> is only device <-> kernel.  When the any single user space process
> writes to it, the device won't see the write unless the user issues a
> flush.

I see.  In the case of ALSA mmap mode, a user issues an ioctl to
notify after the read/write access, so it'd be relatively easy to add
a sync operation.

Does the call of dma_sync_*_for_device() suffice for that purpose?

(BTW, how does the fb driver work on this?)


Thanks!

Takashi
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From - Thu Nov 08 21:02:42 2018
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On Wed, Aug 20, 2008 at 12:58:08PM -0500, James Bottomley wrote:

> On Wed, 2008-08-20 at 18:53 +0200, Takashi Iwai wrote:
> > > I'm afraid there are several problems.  The first is that it doesn't do
> > > what you want.  You can't map a coherent page to userspace (which is at
> > > a non congruent address on parisc) and still expect it to be
> > > coherent ... there's going to have to be fiddling with the page table
> > > caches to make sure coherency isn't destroyed by aliasing effects
> > 
> > Hmm...  how bad would be the coherency with such a simple mmap method?
> > In most cases, we don't need the "perfect" coherency.  Usually one
> > process mmaps the whole buffer and keep reading/writing.  There is
> > another use case (sharing the mmapped buffer by multiple processes),
> > but this can be disabled if we know it's not feasible beforehand.
> 
> Unfortunately, the incoherency is between the user and the kernel.
> That's where the aliasing effects occur, so realistically, even though
> you've mapped coherent memory to the user, the coherency of that memory
> is only device <-> kernel.  When the any single user space process
> writes to it, the device won't see the write unless the user issues a
> flush.

Same applied on MIPS.  Some platforms have the additional requirement that
the buffer must not be mapped by the TLB during the DMA operation or bad
things could happen.

  Ralf



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At Thu, 21 Aug 2008 11:20:52 +0100,
Ralf Baechle wrote:
> 
> On Wed, Aug 20, 2008 at 12:58:08PM -0500, James Bottomley wrote:
> 
> > On Wed, 2008-08-20 at 18:53 +0200, Takashi Iwai wrote:
> > > > I'm afraid there are several problems.  The first is that it doesn't do
> > > > what you want.  You can't map a coherent page to userspace (which is at
> > > > a non congruent address on parisc) and still expect it to be
> > > > coherent ... there's going to have to be fiddling with the page table
> > > > caches to make sure coherency isn't destroyed by aliasing effects
> > > 
> > > Hmm...  how bad would be the coherency with such a simple mmap method?
> > > In most cases, we don't need the "perfect" coherency.  Usually one
> > > process mmaps the whole buffer and keep reading/writing.  There is
> > > another use case (sharing the mmapped buffer by multiple processes),
> > > but this can be disabled if we know it's not feasible beforehand.
> > 
> > Unfortunately, the incoherency is between the user and the kernel.
> > That's where the aliasing effects occur, so realistically, even though
> > you've mapped coherent memory to the user, the coherency of that memory
> > is only device <-> kernel.  When the any single user space process
> > writes to it, the device won't see the write unless the user issues a
> > flush.
> 
> Same applied on MIPS.  Some platforms have the additional requirement that
> the buffer must not be mapped by the TLB during the DMA operation or bad
> things could happen.

Well, in the case of audio hardware, the DMA is always running as long
as the stream is running.  So, on such platforms, the usual mappings
are not allowed at all during audio streaming?


Takashi



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On Thu, 2008-08-21 at 12:19 +0200, Takashi Iwai wrote:
> At Wed, 20 Aug 2008 12:58:08 -0500,
> James Bottomley wrote:
> > 
> > On Wed, 2008-08-20 at 18:53 +0200, Takashi Iwai wrote:
> > > > I'm afraid there are several problems.  The first is that it doesn't do
> > > > what you want.  You can't map a coherent page to userspace (which is at
> > > > a non congruent address on parisc) and still expect it to be
> > > > coherent ... there's going to have to be fiddling with the page table
> > > > caches to make sure coherency isn't destroyed by aliasing effects
> > > 
> > > Hmm...  how bad would be the coherency with such a simple mmap method?
> > > In most cases, we don't need the "perfect" coherency.  Usually one
> > > process mmaps the whole buffer and keep reading/writing.  There is
> > > another use case (sharing the mmapped buffer by multiple processes),
> > > but this can be disabled if we know it's not feasible beforehand.
> > 
> > Unfortunately, the incoherency is between the user and the kernel.
> > That's where the aliasing effects occur, so realistically, even though
> > you've mapped coherent memory to the user, the coherency of that memory
> > is only device <-> kernel.  When the any single user space process
> > writes to it, the device won't see the write unless the user issues a
> > flush.
> 
> I see.  In the case of ALSA mmap mode, a user issues an ioctl to
> notify after the read/write access, so it'd be relatively easy to add
> a sync operation.
> 
> Does the call of dma_sync_*_for_device() suffice for that purpose?

No ... dma_sync_* sync's from the kernel to the device ... you don't
need that if the memory is already coherent.

The problem is that the data you want the device to see is held in a
cache above the user space mapping ... it's that cache that has to be
flushed (i.e. you need to flush through the user mappings, not through
the kernel ones).

> (BTW, how does the fb driver work on this?)

It sets the shared page to uncached on all its mappings.  Turning off
caching (assuming the platform can do it ... not all can) is a good way
to eliminate aliasing issues.

James





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At Thu, 21 Aug 2008 08:55:12 -0500,
James Bottomley wrote:
> 
> On Thu, 2008-08-21 at 12:19 +0200, Takashi Iwai wrote:
> > At Wed, 20 Aug 2008 12:58:08 -0500,
> > James Bottomley wrote:
> > > 
> > > On Wed, 2008-08-20 at 18:53 +0200, Takashi Iwai wrote:
> > > > > I'm afraid there are several problems.  The first is that it doesn't do
> > > > > what you want.  You can't map a coherent page to userspace (which is at
> > > > > a non congruent address on parisc) and still expect it to be
> > > > > coherent ... there's going to have to be fiddling with the page table
> > > > > caches to make sure coherency isn't destroyed by aliasing effects
> > > > 
> > > > Hmm...  how bad would be the coherency with such a simple mmap method?
> > > > In most cases, we don't need the "perfect" coherency.  Usually one
> > > > process mmaps the whole buffer and keep reading/writing.  There is
> > > > another use case (sharing the mmapped buffer by multiple processes),
> > > > but this can be disabled if we know it's not feasible beforehand.
> > > 
> > > Unfortunately, the incoherency is between the user and the kernel.
> > > That's where the aliasing effects occur, so realistically, even though
> > > you've mapped coherent memory to the user, the coherency of that memory
> > > is only device <-> kernel.  When the any single user space process
> > > writes to it, the device won't see the write unless the user issues a
> > > flush.
> > 
> > I see.  In the case of ALSA mmap mode, a user issues an ioctl to
> > notify after the read/write access, so it'd be relatively easy to add
> > a sync operation.
> > 
> > Does the call of dma_sync_*_for_device() suffice for that purpose?
> 
> No ... dma_sync_* sync's from the kernel to the device ... you don't
> need that if the memory is already coherent.
> 
> The problem is that the data you want the device to see is held in a
> cache above the user space mapping ... it's that cache that has to be
> flushed (i.e. you need to flush through the user mappings, not through
> the kernel ones).
> 
> > (BTW, how does the fb driver work on this?)
> 
> It sets the shared page to uncached on all its mappings.  Turning off
> caching (assuming the platform can do it ... not all can) is a good way
> to eliminate aliasing issues.

Thanks for clarification.
How about the revised patch below (for PARISC)?


Takashi


diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index ccd61b9..680b075 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -545,6 +545,20 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
 		flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
 }
 
+static int pa11_dma_mmap_coherent(struct device *dev,
+				  struct vm_area_struct *vma,
+				  void *cpu_addr, dma_addr_t handle,
+				  size_t size)
+{
+	struct page *pg;
+	pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
+	cpu_addr = __va(handle);
+	pg = virt_to_page(cpu_addr);
+	return remap_pfn_range(vma, vma->vm_start,
+			       page_to_pfn(pg) + vma->vm_pgoff,
+			       size, vma->vm_page_prot);
+}
+
 struct hppa_dma_ops pcxl_dma_ops = {
 	.dma_supported =	pa11_dma_supported,
 	.alloc_consistent =	pa11_dma_alloc_consistent,
@@ -558,6 +572,7 @@ struct hppa_dma_ops pcxl_dma_ops = {
 	.dma_sync_single_for_device = pa11_dma_sync_single_for_device,
 	.dma_sync_sg_for_cpu = pa11_dma_sync_sg_for_cpu,
 	.dma_sync_sg_for_device = pa11_dma_sync_sg_for_device,
+	.mmap_coherent =	pa11_dma_mmap_coherent,
 };
 
 static void *fail_alloc_consistent(struct device *dev, size_t size,
@@ -598,4 +613,5 @@ struct hppa_dma_ops pcx_dma_ops = {
 	.dma_sync_single_for_device =	pa11_dma_sync_single_for_device,
 	.dma_sync_sg_for_cpu =		pa11_dma_sync_sg_for_cpu,
 	.dma_sync_sg_for_device =	pa11_dma_sync_sg_for_device,
+	.mmap_coherent =	pa11_dma_mmap_coherent,
 };
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index b30e38f..dd2ab2c 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1014,6 +1014,19 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
 }
 
+static int ccio_dma_mmap_coherent(struct device *dev,
+				  struct vm_area_struct *vma,
+				  void *cpu_addr, dma_addr_t handle,
+				  size_t size)
+{
+	struct page *pg;
+	pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
+	pg = virt_to_page(cpu_addr);
+	return remap_pfn_range(vma, vma->vm_start,
+			       page_to_pfn(pg) + vma->vm_pgoff,
+			       size, vma->vm_page_prot);
+}
+
 static struct hppa_dma_ops ccio_ops = {
 	.dma_supported =	ccio_dma_supported,
 	.alloc_consistent =	ccio_alloc_consistent,
@@ -1027,6 +1040,7 @@ static struct hppa_dma_ops ccio_ops = {
 	.dma_sync_single_for_device =	NULL,	/* NOP for U2/Uturn */
 	.dma_sync_sg_for_cpu =		NULL,	/* ditto */
 	.dma_sync_sg_for_device =		NULL,	/* ditto */
+	.mmap_coherent =	ccio_dma_mmap_coherent,
 };
 
 #ifdef CONFIG_PROC_FS
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index bc73b96..403d66d 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1057,6 +1057,19 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 
 }
 
+static int sba_dma_mmap_coherent(struct device *dev,
+				 struct vm_area_struct *vma,
+				 void *cpu_addr, dma_addr_t handle,
+				 size_t size)
+{
+	struct page *pg;
+	pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
+	pg = virt_to_page(cpu_addr);
+	return remap_pfn_range(vma, vma->vm_start,
+			       page_to_pfn(pg) + vma->vm_pgoff,
+			       size, vma->vm_page_prot);
+}
+
 static struct hppa_dma_ops sba_ops = {
 	.dma_supported =	sba_dma_supported,
 	.alloc_consistent =	sba_alloc_consistent,
@@ -1070,6 +1083,7 @@ static struct hppa_dma_ops sba_ops = {
 	.dma_sync_single_for_device =	NULL,
 	.dma_sync_sg_for_cpu =		NULL,
 	.dma_sync_sg_for_device =	NULL,
+	.mmap_coherent =	sba_dma_mmap_coherent,
 };
 
 
diff --git a/include/asm-parisc/dma-mapping.h b/include/asm-parisc/dma-mapping.h
index 53af696..5b357b3 100644
--- a/include/asm-parisc/dma-mapping.h
+++ b/include/asm-parisc/dma-mapping.h
@@ -19,6 +19,9 @@ struct hppa_dma_ops {
 	void (*dma_sync_single_for_device)(struct device *dev, dma_addr_t iova, unsigned long offset, size_t size, enum dma_data_direction direction);
 	void (*dma_sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
 	void (*dma_sync_sg_for_device)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
+	int (*mmap_coherent)(struct device *dev, struct vm_area_struct *vma,
+			     void *cpu_addr, dma_addr_t handle, size_t size);
+
 };
 
 /*
@@ -204,6 +207,15 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 		flush_kernel_dcache_range((unsigned long)vaddr, size);
 }
 
+static inline int
+dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
+		  void *cpu_addr, dma_addr_t handle, size_t size)
+{
+	if (!hppa_dma_ops->mmap_coherent)
+		return -ENXIO;
+	return hppa_dma_ops->mmap_coherent(dev, vma, cpu_addr, handle, size);
+}
+
 static inline void *
 parisc_walk_tree(struct device *dev)
 {
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Subject: Re: [PATCH] mips: Add dma_mmap_coherent()
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At Thu, 21 Aug 2008 18:01:49 +0200,
I wrote:
> 
> At Thu, 21 Aug 2008 08:55:12 -0500,
> James Bottomley wrote:
> > 
> > On Thu, 2008-08-21 at 12:19 +0200, Takashi Iwai wrote:
> > > At Wed, 20 Aug 2008 12:58:08 -0500,
> > > James Bottomley wrote:
> > > > 
> > > > On Wed, 2008-08-20 at 18:53 +0200, Takashi Iwai wrote:
> > > > > > I'm afraid there are several problems.  The first is that it doesn't do
> > > > > > what you want.  You can't map a coherent page to userspace (which is at
> > > > > > a non congruent address on parisc) and still expect it to be
> > > > > > coherent ... there's going to have to be fiddling with the page table
> > > > > > caches to make sure coherency isn't destroyed by aliasing effects
> > > > > 
> > > > > Hmm...  how bad would be the coherency with such a simple mmap method?
> > > > > In most cases, we don't need the "perfect" coherency.  Usually one
> > > > > process mmaps the whole buffer and keep reading/writing.  There is
> > > > > another use case (sharing the mmapped buffer by multiple processes),
> > > > > but this can be disabled if we know it's not feasible beforehand.
> > > > 
> > > > Unfortunately, the incoherency is between the user and the kernel.
> > > > That's where the aliasing effects occur, so realistically, even though
> > > > you've mapped coherent memory to the user, the coherency of that memory
> > > > is only device <-> kernel.  When the any single user space process
> > > > writes to it, the device won't see the write unless the user issues a
> > > > flush.
> > > 
> > > I see.  In the case of ALSA mmap mode, a user issues an ioctl to
> > > notify after the read/write access, so it'd be relatively easy to add
> > > a sync operation.
> > > 
> > > Does the call of dma_sync_*_for_device() suffice for that purpose?
> > 
> > No ... dma_sync_* sync's from the kernel to the device ... you don't
> > need that if the memory is already coherent.
> > 
> > The problem is that the data you want the device to see is held in a
> > cache above the user space mapping ... it's that cache that has to be
> > flushed (i.e. you need to flush through the user mappings, not through
> > the kernel ones).
> > 
> > > (BTW, how does the fb driver work on this?)
> > 
> > It sets the shared page to uncached on all its mappings.  Turning off
> > caching (assuming the platform can do it ... not all can) is a good way
> > to eliminate aliasing issues.
> 
> Thanks for clarification.
> How about the revised patch below (for PARISC)?

... and the below is for MIPS.


thanks,

Takashi


diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 891312f..2307f56 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -387,3 +387,16 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 }
 
 EXPORT_SYMBOL(dma_cache_sync);
+
+int dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
+		      void *cpu_addr, dma_addr_t handle, size_t size)
+{
+	struct page *pg;
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+	cpu_addr = (void *)dma_addr_to_virt(handle);
+	pg = virt_to_page(cpu_addr);
+	return remap_pfn_range(vma, vma->vm_start,
+			       page_to_pfn(pg) + vma->vm_pgoff,
+			       size, vma->vm_page_prot);
+}
+EXPORT_SYMBOL(dma_mmap_coherent);
diff --git a/include/asm-mips/dma-mapping.h b/include/asm-mips/dma-mapping.h
index c64afb4..ab12cd4 100644
--- a/include/asm-mips/dma-mapping.h
+++ b/include/asm-mips/dma-mapping.h
@@ -68,6 +68,9 @@ extern int dma_is_consistent(struct device *dev, dma_addr_t dma_addr);
 extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	       enum dma_data_direction direction);
 
+extern int dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
+			     void *cpu_addr, dma_addr_t handle, size_t size);
+
 #if 0
 #define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
 

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From - Thu Nov 08 21:02:43 2018
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Subject: Re: [PATCH] mips: Add dma_mmap_coherent()
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On Thu, Aug 21, 2008 at 06:03:43PM +0200, Takashi Iwai wrote:
> > Thanks for clarification.
> > How about the revised patch below (for PARISC)?

the PARISC part will not work for 735 systems, because the CPU can't
map memory uncached, iirc. 

> ... and the below is for MIPS.

for most MIPS system you need the same trick as for PARISC and use 
uncached memory. But there are systems, which can't use uncached
memory. 

One of the is SGI IP28, which needs to be switched to a special
slower mode for uncached accesses, which we avoid completly in the
kernel right now and I don't think making the switch to slow mode
possible in user space is a good idea.

SGI Origin 200/2000, SGI Onyx and some Challenge Systems have a
different problem:

"Uncached Memory Access in SGI Origin 2000 and in Challenge and Onyx Series

    Access to uncached memory is not supported in these systems, in which
    cache coherency is maintained by the hardware, even under access from
    CPUs and concurrent DMA.  There is never a need (and no approved way)
    to access uncached memory in these systems."

That's from the IRIX Device Driver guide.

Right now I can't think of a solutin, which works on every MIPS system.

Thomas.

-- 
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From - Thu Nov 08 21:02:43 2018
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At Thu, 21 Aug 2008 23:41:18 +0200,
Thomas Bogendoerfer wrote:
> 
> On Thu, Aug 21, 2008 at 06:03:43PM +0200, Takashi Iwai wrote:
> > > Thanks for clarification.
> > > How about the revised patch below (for PARISC)?
> 
> the PARISC part will not work for 735 systems, because the CPU can't
> map memory uncached, iirc. 
> 
> > ... and the below is for MIPS.
> 
> for most MIPS system you need the same trick as for PARISC and use 
> uncached memory. But there are systems, which can't use uncached
> memory. 
> 
> One of the is SGI IP28, which needs to be switched to a special
> slower mode for uncached accesses, which we avoid completly in the
> kernel right now and I don't think making the switch to slow mode
> possible in user space is a good idea.
> 
> SGI Origin 200/2000, SGI Onyx and some Challenge Systems have a
> different problem:
> 
> "Uncached Memory Access in SGI Origin 2000 and in Challenge and Onyx Series
> 
>     Access to uncached memory is not supported in these systems, in which
>     cache coherency is maintained by the hardware, even under access from
>     CPUs and concurrent DMA.  There is never a need (and no approved way)
>     to access uncached memory in these systems."
> 
> That's from the IRIX Device Driver guide.
> 
> Right now I can't think of a solutin, which works on every MIPS system.

Thanks for detailed information.
I don't think that this must work for *every* platform, too, and it's
not expected from the driver.  The systems without uncached memory
access can simply return an error from  dma_mmap_coherent() call, so
that the driver can disable the mmap.  That'd be enough.

The current problem is that such an architecture / platform specific
thing isn't exposed at all.  If the driver suppose that mmap would
work as if normal pages, then it results in a crash.
The dma_mmap_coherent() can hide ugliness inside the arch code, and
also can give you an error if unmappable, at least.

Now, how to handle these exceptions: a question comes into my mind
again -- how does the framebuffer handle these as well?
Any pointer appreciated.


Thanks!

Takashi
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Subject: Re: [PATCH] mips: Add dma_mmap_coherent()
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On Fri, Aug 22, 2008 at 08:07:44AM +0200, Takashi Iwai wrote:
> I don't think that this must work for *every* platform, too, and it's
> not expected from the driver.  The systems without uncached memory
> access can simply return an error from  dma_mmap_coherent() call, so
> that the driver can disable the mmap.  That'd be enough.

true, I've used snd_pcm_indirect for HAL2 driver, which works even on
SGI IP28 machines.

> Now, how to handle these exceptions: a question comes into my mind
> again -- how does the framebuffer handle these as well?

most framebuffers have a dedicated set of video memory and this memory is
just mmaped uncached either via TLB/MMU (MIPS) or rules inside
the system (PARISC uses IO space memory, which is always uncached). 
The code which does this mmaping is in drivers/video/fbmem.c plus
fb_pgprotect out of an include/asm header file. 

For framebuffers without dedicated video memory the memory is mmaped
write through or uncached. A driver, which uses this, is 
drivers/video/gbefb.c.

Thomas.

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From - Thu Nov 08 21:02:43 2018
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At Fri, 22 Aug 2008 11:41:31 +0200,
Thomas Bogendoerfer wrote:
> 
> On Fri, Aug 22, 2008 at 08:07:44AM +0200, Takashi Iwai wrote:
> > I don't think that this must work for *every* platform, too, and it's
> > not expected from the driver.  The systems without uncached memory
> > access can simply return an error from  dma_mmap_coherent() call, so
> > that the driver can disable the mmap.  That'd be enough.
> 
> true, I've used snd_pcm_indirect for HAL2 driver, which works even on
> SGI IP28 machines.
> 
> > Now, how to handle these exceptions: a question comes into my mind
> > again -- how does the framebuffer handle these as well?
> 
> most framebuffers have a dedicated set of video memory and this memory is
> just mmaped uncached either via TLB/MMU (MIPS) or rules inside
> the system (PARISC uses IO space memory, which is always uncached). 
> The code which does this mmaping is in drivers/video/fbmem.c plus
> fb_pgprotect out of an include/asm header file. 

Thanks.  These are the files I already looked at, and pgprot fiddling
is already in my last patches (and apparently they not enough).

> For framebuffers without dedicated video memory the memory is mmaped
> write through or uncached. A driver, which uses this, is 
> drivers/video/gbefb.c.

So, adding a code like below to dma_mmap_coherent() for MIPS?

static inline pgprot_t pgprot_mmap(pgprot_t _prot)
{
	unsigned long prot = pgprot_val(_prot) & ~_CACHE_MASK;
#ifdef CONFIG_SGI_IP32
#ifdef CONFIG_CPU_R10000
	prot = prot | _CACHE_UNCACHED_ACCELERATED;
#else
	prot = prot | _CACHE_CACHABLE_NO_WA;
#endif
#else
	prot = prot | _CACHE_UNCACHED;
#endif
	return __pgprot(prot);
}

dma_mmap_coherent()
{
	...
	vma->vm_page_prot = pgprot_mmap(vma->vm_page_prot);
	...
	remap_pfn_range(...);
}


thanks,

Takashi
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--_=__=_XaM3_.1219406676.2A.885565.42.15885.52.42.007.184490982
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Hello Takashi et al.,

[snip]

> diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
> index b30e38f..dd2ab2c 100644
> --- a/drivers/parisc/ccio-dma.c
> +++ b/drivers/parisc/ccio-dma.c
> @@ -1014,6 +1014,19 @@ ccio_unmap_sg(struct device *dev, struct scatter=
list
*sglist, int nents,
>  	DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
>  }
>  
> +static int ccio_dma_mmap_coherent(struct device *dev,
> +				  struct vm_area_struct *vma,
> +				  void *cpu_addr, dma_addr_t handle,
> +				  size_t size)
> +{
> +	struct page *pg;
> +	pgprot_val(vma->vm_page_prot) |=3D _PAGE_NO_CACHE;
> +	pg =3D virt_to_page(cpu_addr);
> +	return remap_pfn_range(vma, vma->vm_start,
> +			       page_to_pfn(pg) + vma->vm_pgoff,
> +			       size, vma->vm_page_prot);
> +}
> +
>  static struct hppa_dma_ops ccio_ops =3D {
>  	.dma_supported =3D	ccio_dma_supported,
>  	.alloc_consistent =3D	ccio_alloc_consistent,
> @@ -1027,6 +1040,7 @@ static struct hppa_dma_ops ccio_ops =3D {
>  	.dma_sync_single_for_device =3D	NULL,	/* NOP for U2/Uturn */
>  	.dma_sync_sg_for_cpu =3D		NULL,	/* ditto */
>  	.dma_sync_sg_for_device =3D		NULL,	/* ditto */
> +	.mmap_coherent =3D	ccio_dma_mmap_coherent,
>  };
>  
>  #ifdef CONFIG_PROC_FS
> diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
> index bc73b96..403d66d 100644
> --- a/drivers/parisc/sba_iommu.c
> +++ b/drivers/parisc/sba_iommu.c
> @@ -1057,6 +1057,19 @@ sba_unmap_sg(struct device *dev, struct scatterl=
ist
*sglist, int nents,
>  
>  }
>  
> +static int sba_dma_mmap_coherent(struct device *dev,
> +				 struct vm_area_struct *vma,
> +				 void *cpu_addr, dma_addr_t handle,
> +				 size_t size)
> +{
> +	struct page *pg;
> +	pgprot_val(vma->vm_page_prot) |=3D _PAGE_NO_CACHE;
> +	pg =3D virt_to_page(cpu_addr);
> +	return remap_pfn_range(vma, vma->vm_start,
> +			       page_to_pfn(pg) + vma->vm_pgoff,
> +			       size, vma->vm_page_prot);
> +}
> +
>  static struct hppa_dma_ops sba_ops =3D {
>  	.dma_supported =3D	sba_dma_supported,
>  	.alloc_consistent =3D	sba_alloc_consistent,
> @@ -1070,6 +1083,7 @@ static struct hppa_dma_ops sba_ops =3D {
>  	.dma_sync_single_for_device =3D	NULL,
>  	.dma_sync_sg_for_cpu =3D		NULL,
>  	.dma_sync_sg_for_device =3D	NULL,
> +	.mmap_coherent =3D	sba_dma_mmap_coherent,
>  };
> 
I build and boot successfully kernel 32bit including your patch on 2 syst=
ems
(a b2k using sba and a d380 using ccio).

I just noticed that the above code is ~ the same; otoh there is also a
iommu-helpers.h containing also common code to those 2 drivers. So may be=
 for
easiest maintenance, could you merge and move this code in this 'helper' =
as
follow:
--- ./drivers/parisc/iommu-helpers.h.Orig	2008-08-01 12:57:22.000000000 +=
0000
+++ ./drivers/parisc/iommu-helpers.h	2008-08-22 08:07:26.000000000 +0000
@@ -172,3 +172,16 @@
 	return n_mappings;
 }
 
+static int iommu_dma_mmap_coherent(struct device *dev,
+				  struct vm_area_struct *vma,
+				  void *cpu_addr, dma_addr_t handle,
+				  size_t size)
+{
+	struct page *pg;
+	pgprot_val(vma->vm_page_prot) |=3D _PAGE_NO_CACHE;
+	pg =3D virt_to_page(cpu_addr);
+	return remap_pfn_range(vma, vma->vm_start,
+			       page_to_pfn(pg) + vma->vm_pgoff,
+			       size, vma->vm_page_prot);
+}
+
--- ./drivers/parisc/ccio-dma.c.Orig	2008-08-22 07:49:21.000000000 +0000
+++ ./drivers/parisc/ccio-dma.c	2008-08-22 08:06:32.000000000 +0000
@@ -1005,19 +1005,6 @@
 	DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
 }
 
-static int ccio_dma_mmap_coherent(struct device *dev,
-				  struct vm_area_struct *vma,
-				  void *cpu_addr, dma_addr_t handle,
-				  size_t size)
-{
-	struct page *pg;
-	pgprot_val(vma->vm_page_prot) |=3D _PAGE_NO_CACHE;
-	pg =3D virt_to_page(cpu_addr);
-	return remap_pfn_range(vma, vma->vm_start,
-			       page_to_pfn(pg) + vma->vm_pgoff,
-			       size, vma->vm_page_prot);
-}
-
 static struct hppa_dma_ops ccio_ops =3D {
 	.dma_supported =3D	ccio_dma_supported,
 	.alloc_consistent =3D	ccio_alloc_consistent,
@@ -1031,7 +1018,7 @@
 	.dma_sync_single_for_device =3D	NULL,	/* NOP for U2/Uturn */
 	.dma_sync_sg_for_cpu =3D		NULL,	/* ditto */
 	.dma_sync_sg_for_device =3D		NULL,	/* ditto */
-	.mmap_coherent =3D	ccio_dma_mmap_coherent,
+	.mmap_coherent =3D	iommu_dma_mmap_coherent,
 };
 
 #ifdef CONFIG_PROC_FS
--- ./drivers/parisc/sba_iommu.c.Orig	2008-08-22 07:49:21.000000000 +0000=

+++ ./drivers/parisc/sba_iommu.c	2008-08-22 08:08:30.000000000 +0000
@@ -1057,19 +1057,6 @@
 
 }
 
-static int sba_dma_mmap_coherent(struct device *dev,
-				 struct vm_area_struct *vma,
-				 void *cpu_addr, dma_addr_t handle,
-				 size_t size)
-{
-	struct page *pg;
-	pgprot_val(vma->vm_page_prot) |=3D _PAGE_NO_CACHE;
-	pg =3D virt_to_page(cpu_addr);
-	return remap_pfn_range(vma, vma->vm_start,
-			       page_to_pfn(pg) + vma->vm_pgoff,
-			       size, vma->vm_page_prot);
-}
-
 static struct hppa_dma_ops sba_ops =3D {
 	.dma_supported =3D	sba_dma_supported,
 	.alloc_consistent =3D	sba_alloc_consistent,
@@ -1083,7 +1070,7 @@
 	.dma_sync_single_for_device =3D	NULL,
 	.dma_sync_sg_for_cpu =3D		NULL,
 	.dma_sync_sg_for_device =3D	NULL,
-	.mmap_coherent =3D	sba_dma_mmap_coherent,
+	.mmap_coherent =3D	iommu_dma_mmap_coherent,
 };
 
 
=3D=3D=3D <> =3D=3D=3D  
>  
> diff --git a/include/asm-parisc/dma-mapping.h b/include/asm-parisc/dma-=
mapping.h
> index 53af696..5b357b3 100644
> --- a/include/asm-parisc/dma-mapping.h
> +++ b/include/asm-parisc/dma-mapping.h

The small issue encountered: against latest Kyle git tree (dated 2008-07-=
29)
this file was moved in arch/parisc/include/asm.

> @@ -19,6 +19,9 @@ struct hppa_dma_ops {
>  	void (*dma_sync_single_for_device)(struct device *dev, dma_addr_t iov=
a,
unsigned long offset, size_t size, enum dma_data_direction direction);
>  	void (*dma_sync_sg_for_cpu)(struct device *dev, struct scatterlist *s=
g,
int nelems, enum dma_data_direction direction);
>  	void (*dma_sync_sg_for_device)(struct device *dev, struct scatterlist=
 *sg,
int nelems, enum dma_data_direction direction);
> +	int (*mmap_coherent)(struct device *dev, struct vm_area_struct *vma,
> +			     void *cpu_addr, dma_addr_t handle, size_t size);
> +
>  };
>  
>  /*
> @@ -204,6 +207,15 @@ dma_cache_sync(struct device *dev, void *vaddr, si=
ze_t
size,
>  		flush_kernel_dcache_range((unsigned long)vaddr, size);
>  }
>  
> +static inline int
> +dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
> +		  void *cpu_addr, dma_addr_t handle, size_t size)
> +{
> +	if (!hppa_dma_ops->mmap_coherent)
> +		return -ENXIO;
> +	return hppa_dma_ops->mmap_coherent(dev, vma, cpu_addr, handle, size);=

> +}
> +
>  static inline void *
>  parisc_walk_tree(struct device *dev)
>  {

Tx,
    J.
=0A
--_=__=_XaM3_.1219406676.2A.885565.42.15885.52.42.007.184490982
Content-Type: text/plain;
	name="=?iso-8859-1?Q?TI2.txt?="
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="=?iso-8859-1?Q?TI2.txt?="

--- ./drivers/parisc/iommu-helpers.h.Orig	2008-08-01 12:57:22.000000000 +=
0000=0A+++ ./drivers/parisc/iommu-helpers.h	2008-08-22 08:07:26.000000000=
 +0000=0A@@ -172,3 +172,16 @@=0A 	return n_mappings;=0A }=0A =0A+static i=
nt iommu_dma_mmap_coherent(struct device *dev,=0A+				  struct vm_area_st=
ruct *vma,=0A+				  void *cpu_addr, dma_addr_t handle,=0A+				  size_t si=
ze)=0A+{=0A+	struct page *pg;=0A+	pgprot_val(vma->vm_page_prot) |=3D _PAG=
E_NO_CACHE;=0A+	pg =3D virt_to_page(cpu_addr);=0A+	return remap_pfn_range=
(vma, vma->vm_start,=0A+			       page_to_pfn(pg) + vma->vm_pgoff,=0A+			=
       size, vma->vm_page_prot);=0A+}=0A+=0A--- ./drivers/parisc/ccio-dma=
.c.Orig	2008-08-22 07:49:21.000000000 +0000=0A+++ ./drivers/parisc/ccio-d=
ma.c	2008-08-22 08:06:32.000000000 +0000=0A@@ -1005,19 +1005,6 @@=0A 	DBG=
_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);=0A }=0A =0A-static in=
t ccio_dma_mmap_coherent(struct device *dev,=0A-				  struct vm_area_stru=
ct *vma,=0A-				  void *cpu_addr, dma_addr_t handle,=0A-				  size_t size=
)=0A-{=0A-	struct page *pg;=0A-	pgprot_val(vma->vm_page_prot) |=3D _PAGE_=
NO_CACHE;=0A-	pg =3D virt_to_page(cpu_addr);=0A-	return remap_pfn_range(v=
ma, vma->vm_start,=0A-			       page_to_pfn(pg) + vma->vm_pgoff,=0A-			  =
     size, vma->vm_page_prot);=0A-}=0A-=0A static struct hppa_dma_ops cci=
o_ops =3D {=0A 	.dma_supported =3D	ccio_dma_supported,=0A 	.alloc_consist=
ent =3D	ccio_alloc_consistent,=0A@@ -1031,7 +1018,7 @@=0A 	.dma_sync_sing=
le_for_device =3D	NULL,	/* NOP for U2/Uturn */=0A 	.dma_sync_sg_for_cpu =3D=
		NULL,	/* ditto */=0A 	.dma_sync_sg_for_device =3D		NULL,	/* ditto */=0A=
-	.mmap_coherent =3D	ccio_dma_mmap_coherent,=0A+	.mmap_coherent =3D	iommu=
_dma_mmap_coherent,=0A };=0A =0A #ifdef CONFIG_PROC_FS=0A--- ./drivers/pa=
risc/sba_iommu.c.Orig	2008-08-22 07:49:21.000000000 +0000=0A+++ ./drivers=
/parisc/sba_iommu.c	2008-08-22 08:08:30.000000000 +0000=0A@@ -1057,19 +10=
57,6 @@=0A =0A }=0A =0A-static int sba_dma_mmap_coherent(struct device *d=
ev,=0A-				 struct vm_area_struct *vma,=0A-				 void *cpu_addr, dma_addr_=
t handle,=0A-				 size_t size)=0A-{=0A-	struct page *pg;=0A-	pgprot_val(v=
ma->vm_page_prot) |=3D _PAGE_NO_CACHE;=0A-	pg =3D virt_to_page(cpu_addr);=
=0A-	return remap_pfn_range(vma, vma->vm_start,=0A-			       page_to_pfn(=
pg) + vma->vm_pgoff,=0A-			       size, vma->vm_page_prot);=0A-}=0A-=0A s=
tatic struct hppa_dma_ops sba_ops =3D {=0A 	.dma_supported =3D	sba_dma_su=
pported,=0A 	.alloc_consistent =3D	sba_alloc_consistent,=0A@@ -1083,7 +10=
70,7 @@=0A 	.dma_sync_single_for_device =3D	NULL,=0A 	.dma_sync_sg_for_cp=
u =3D		NULL,=0A 	.dma_sync_sg_for_device =3D	NULL,=0A-	.mmap_coherent =3D=
	sba_dma_mmap_coherent,=0A+	.mmap_coherent =3D	iommu_dma_mmap_coherent,=0A=
 };=0A =0A =0A
--_=__=_XaM3_.1219406676.2A.885565.42.15885.52.42.007.184490982--

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From - Thu Nov 08 21:02:43 2018
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From: "Joel Soete" <soete.joel@scarlet.be>
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Subject: Re:[RFC] [PATCH] compat_sys_ptrace conversions for parisc
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Hello Helge,

I build and boot successfully 2 32bit kernels including your patch ;<)

> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
>   arch/parisc/kernel/ptrace.c        |  429
> ++++++++++++++-----------------------
>   arch/parisc/kernel/syscall_table.S |    2
>   include/asm-parisc/ptrace.h        |   10

I just encountered a small issue against latest Kyle git tree because this
file was moved to 'arch/parisc/include/asm'.

Tx,
    J.

>   3 files changed, 183 insertions(+), 258 deletions(-)
> 
> 
> 


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At Fri, 22 Aug 2008 13:04:36 +0100,
Joel Soete wrote:
> 
> Hello Takashi et al.,
...
> I build and boot successfully kernel 32bit including your patch on 2 systems
> (a b2k using sba and a d380 using ccio).

Thanks for testing!

> I just noticed that the above code is ~ the same; otoh there is also a
> iommu-helpers.h containing also common code to those 2 drivers. So may be for
> easiest maintenance, could you merge and move this code in this 'helper' as
> follow:
> --- ./drivers/parisc/iommu-helpers.h.Orig	2008-08-01 12:57:22.000000000 +0000
> +++ ./drivers/parisc/iommu-helpers.h	2008-08-22 08:07:26.000000000 +0000

That sounds like a good idea.

One concern is to define a non-inline function in *.h.  But,
iommu-helper.h is included only by these two drivers, so there is no
problem as now, although a comment would be more helpful.


> >
> > diff --git a/include/asm-parisc/dma-mapping.h b/include/asm-parisc/dma-mapping.h
> > index 53af696..5b357b3 100644
> > --- a/include/asm-parisc/dma-mapping.h
> > +++ b/include/asm-parisc/dma-mapping.h
> 
> The small issue encountered: against latest Kyle git tree (dated 2008-07-29)
> this file was moved in arch/parisc/include/asm.

Yes.  My patches are still based on older version (2.6.27-rc2 or so).

git cares renaming well, so it shouldn't be a big problem.
I just tested it now and git-pull (oh now it's "git pull" :) renames
it automatically indeed.


thanks,

Takashi
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On Fri, Aug 22, 2008 at 12:23:48PM +0200, Takashi Iwai wrote:
> 	unsigned long prot = pgprot_val(_prot) & ~_CACHE_MASK;
> #ifdef CONFIG_SGI_IP32
> #ifdef CONFIG_CPU_R10000
> 	prot = prot | _CACHE_UNCACHED_ACCELERATED;
> #else
> 	prot = prot | _CACHE_CACHABLE_NO_WA;
> #endif
> #else
> 	prot = prot | _CACHE_UNCACHED;
> #endif
> 	return __pgprot(prot);

this won't work for recording channels on IP32, because the write trough
mapping will hide updates done via DMA.

I'd start with just

prot |= _CACHE_UNCACHED

and if some MIPS system needs more specific treatment, we just add
that later.

Thomas.

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From: Takashi Iwai <tiwai@suse.de>
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At Fri, 22 Aug 2008 16:36:22 +0200,
Thomas Bogendoerfer wrote:
> 
> On Fri, Aug 22, 2008 at 12:23:48PM +0200, Takashi Iwai wrote:
> > 	unsigned long prot = pgprot_val(_prot) & ~_CACHE_MASK;
> > #ifdef CONFIG_SGI_IP32
> > #ifdef CONFIG_CPU_R10000
> > 	prot = prot | _CACHE_UNCACHED_ACCELERATED;
> > #else
> > 	prot = prot | _CACHE_CACHABLE_NO_WA;
> > #endif
> > #else
> > 	prot = prot | _CACHE_UNCACHED;
> > #endif
> > 	return __pgprot(prot);
> 
> this won't work for recording channels on IP32, because the write trough
> mapping will hide updates done via DMA.

Hmm, not so easy...

> I'd start with just
> 
> prot |= _CACHE_UNCACHED
> 
> and if some MIPS system needs more specific treatment, we just add
> that later.

OK, then it's essentially pgprog_noncached() as in my second patch.


Thanks!

Takashi
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Subject: [patch] vsprintf: use new vsprintf symbolic function pointer format
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Use the '%pF' format to get rid of an "#ifdef DEBUG" and make
some printks atomic.

This removes the last in-tree uses of print_fn_descriptor_symbol().
I marked print_fn_descriptor_symbol() deprecated and scheduled it
for removal next year to give time for out-of-tree modules to be
updated.

I cc'd the parisc folks because print_fn_descriptor_symbol() is
currently broken there (it needs to dereference the function pointer
similar to ia64 and power).  This patch shouldn't make anything worse,
but it means we need to fix dereference_function_descriptor() instead
of print_fn_descriptor_symbol() to get meaningful initcall_debug
output.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
---

 Documentation/feature-removal-schedule.txt |    8 ++++++++
 drivers/base/power/main.c                  |    7 ++-----
 drivers/pci/quirks.c                       |    5 +----
 include/linux/kallsyms.h                   |    8 +++-----
 init/main.c                                |   14 ++++++--------
 5 files changed, 20 insertions(+), 22 deletions(-)


diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index eb1a47b..6951fb4 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -322,3 +322,11 @@ Why:  Accounting can now be enabled/disabled without kernel recompilation.
       controlled by a kernel/module/sysfs/sysctl parameter.
 Who:  Krzysztof Piotr Oledzki <ole@ans.pl>
 
+---------------------------
+
+What: print_fn_descriptor_symbol()
+When: October 2009
+Why:  The %pF vsprintf format provides the same functionality in a
+      simpler way.  print_fn_descriptor_symbol() is deprecated but
+      still present to give out-of-tree modules time to change.
+Who:  Bjorn Helgaas <bjorn.helgaas@hp.com>
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 3250c52..cd12708 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -787,10 +787,7 @@ EXPORT_SYMBOL_GPL(device_suspend);
 
 void __suspend_report_result(const char *function, void *fn, int ret)
 {
-	if (ret) {
-		printk(KERN_ERR "%s(): ", function);
-		print_fn_descriptor_symbol("%s returns ", fn);
-		printk("%d\n", ret);
-	}
+	if (ret)
+		printk(KERN_ERR "%s(): %pF returns %d\n", function, fn, ret);
 }
 EXPORT_SYMBOL_GPL(__suspend_report_result);
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 9236e7f..0143268 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1560,10 +1560,7 @@ static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_f
 	while (f < end) {
 		if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
  		    (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
-#ifdef DEBUG
-			dev_dbg(&dev->dev, "calling ");
-			print_fn_descriptor_symbol("%s\n", f->hook);
-#endif
+			dev_dbg(&dev->dev, "calling %pF\n", f->hook);
 			f->hook(dev);
 		}
 		f++;
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index b961448..f3fe343 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -93,12 +93,10 @@ static inline void print_symbol(const char *fmt, unsigned long addr)
 }
 
 /*
- * Pretty-print a function pointer.
- *
- * ia64 and ppc64 function pointers are really function descriptors,
- * which contain a pointer the real address.
+ * Pretty-print a function pointer.  This function is deprecated.
+ * Please use the "%pF" vsprintf format instead.
  */
-static inline void print_fn_descriptor_symbol(const char *fmt, void *addr)
+static inline void __deprecated print_fn_descriptor_symbol(const char *fmt, void *addr)
 {
 #if defined(CONFIG_IA64) || defined(CONFIG_PPC64)
 	addr = *(void **)addr;
diff --git a/init/main.c b/init/main.c
index f6f7042..75a038d 100644
--- a/init/main.c
+++ b/init/main.c
@@ -708,7 +708,7 @@ int do_one_initcall(initcall_t fn)
 	int result;
 
 	if (initcall_debug) {
-		print_fn_descriptor_symbol("calling  %s\n", fn);
+		printk("calling  %pF\n", fn);
 		t0 = ktime_get();
 	}
 
@@ -718,9 +718,8 @@ int do_one_initcall(initcall_t fn)
 		t1 = ktime_get();
 		delta = ktime_sub(t1, t0);
 
-		print_fn_descriptor_symbol("initcall %s", fn);
-		printk(" returned %d after %Ld msecs\n", result,
-			(unsigned long long) delta.tv64 >> 20);
+		printk("initcall %pF returned %d after %Ld msecs\n", fn,
+		       result, (unsigned long long) delta.tv64 >> 20);
 	}
 
 	msgbuf[0] = 0;
@@ -736,10 +735,9 @@ int do_one_initcall(initcall_t fn)
 		strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
 		local_irq_enable();
 	}
-	if (msgbuf[0]) {
-		print_fn_descriptor_symbol(KERN_WARNING "initcall %s", fn);
-		printk(" returned with %s\n", msgbuf);
-	}
+	if (msgbuf[0])
+		printk(KERN_WARNING "initcall %pF returned with %s\n",
+		       fn, msgbuf);
 
 	return result;
 }
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From - Thu Nov 08 21:02:43 2018
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On Fri, Aug 22, 2008 at 09:34:43AM -0600, Bjorn Helgaas wrote:
> Use the '%pF' format to get rid of an "#ifdef DEBUG" and make
> some printks atomic.
> 
> This removes the last in-tree uses of print_fn_descriptor_symbol().
> I marked print_fn_descriptor_symbol() deprecated and scheduled it
> for removal next year to give time for out-of-tree modules to be
> updated.
> 
> I cc'd the parisc folks because print_fn_descriptor_symbol() is
> currently broken there (it needs to dereference the function pointer
> similar to ia64 and power).  This patch shouldn't make anything worse,
> but it means we need to fix dereference_function_descriptor() instead
> of print_fn_descriptor_symbol() to get meaningful initcall_debug
> output.
> 

Yeah, I sent a few patches a couple months ago fixing this up for
print_fn_..._symbol, but they were never applied, and I kind of forgot
about them. It only really effects me once and a while during a merge
window when I need to use initcall_debug, so it's easily forgotten.

I've got a patch, I'll send it along in a bit when one of my machines
finally boots and I can test it.

regards, Kyle
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> The driver sets a video mode and then checks if the syscall modified the 
> parameters with the function fbdev_modes_equal():
> 
> --snip--
> /* static*/ Bool
> fbdev_modes_equal(struct fb_var_screeninfo *set, struct 
> fb_var_screeninfo *req)
> {
>          return (set->xres_virtual >= req->xres_virtual &&
>                  set->yres_virtual >= req->yres_virtual &&
>                  set->bits_per_pixel == req->bits_per_pixel &&
>                  set->red.length == req->red.length &&
>                  set->green.length == req->green.length &&
>                  set->blue.length == req->blue.length &&
>                  set->xres == req->xres && set->yres == req->yres &&
>                  set->pixclock == req->pixclock &&
>                  set->right_margin == req->right_margin &&
>                  set->hsync_len == req->hsync_len &&
>                  set->left_margin == req->left_margin &&
>                  set->lower_margin == req->lower_margin &&
>                  set->vsync_len == req->vsync_len &&
>                  set->upper_margin == req->upper_margin &&
>                  set->sync == req->sync && set->vmode == req->vmode);

The is the kernel's implementation:

int fb_mode_is_equal(const struct fb_videomode *mode1,
                     const struct fb_videomode *mode2)
{
     return (mode1->xres         == mode2->xres &&
     mode1->yres         == mode2->yres &&
     mode1->pixclock     == mode2->pixclock &&
     mode1->hsync_len    == mode2->hsync_len &&
     mode1->vsync_len    == mode2->vsync_len &&
     mode1->left_margin  == mode2->left_margin &&
     mode1->right_margin == mode2->right_margin &&
     mode1->upper_margin == mode2->upper_margin &&
     mode1->lower_margin == mode2->lower_margin &&
     mode1->sync         == mode2->sync &&
     mode1->vmode        == mode2->vmode);
}

> Tracing with gdb gives the following:
> 
> Breakpoint 1, fbdev_modes_equal (set=0xfb5ed568, req=0xfb5ed4c8)
>      at ../../../../hw/xfree86/fbdevhw/fbdevhw.c:256
> 256     }
> (gdb) p *set
> $1 = {xres = 1024, yres = 768, xres_virtual = 1024, yres_virtual = 768, 
> xoffset = 0, yoffset = 0,
>    bits_per_pixel = 8, grayscale = 0, red = {offset = 0, length = 8, 
> msb_right = 0}, green = {offset = 0,
>      length = 8, msb_right = 0}, blue = {offset = 0, length = 8, 
> msb_right = 0}, transp = {offset = 0,
>      length = 0, msb_right = 0}, nonstd = 0, activate = 0, height = 0, 
> width = 0, accel_flags = 0,
>    pixclock = 0, left_margin = 0, right_margin = 0, upper_margin = 0, 
> lower_margin = 0, hsync_len = 0,
>    vsync_len = 0, sync = 0, vmode = 0, reserved = {0, 0, 0, 0, 0, 0}}
> 
> (gdb) p *req
> $2 = {xres = 1024, yres = 768, xres_virtual = 1024, yres_virtual = 768, 
> xoffset = 0, yoffset = 0,
>    bits_per_pixel = 8, grayscale = 0, red = {offset = 0, length = 8, 
> msb_right = 0}, green = {offset = 0,
>      length = 8, msb_right = 0}, blue = {offset = 0, length = 8, 
> msb_right = 0}, transp = {offset = 0,
>      length = 0, msb_right = 0}, nonstd = 0, activate = 0, height = 0, 
> width = 0, accel_flags = 0,
>    pixclock = 22271, left_margin = 56, right_margin = 8, upper_margin = 
> 41, lower_margin = 0,
>    hsync_len = 176, vsync_len = 8, sync = 3, vmode = 1, reserved = {0, 
> 0, 0, 0, 0, 0}}
> 
> (gdb) bt
> #0  fbdev_modes_equal (set=0xfb5ed568, req=0xfb5ed4c8) at 
> ../../../../hw/xfree86/fbdevhw/fbdevhw.c:256
> #1  0x40bcfb64 in fbdevHWSetMode (pScrn=0x2142a0, mode=<value optimized 
> out>, check=1)
>      at ../../../../hw/xfree86/fbdevhw/fbdevhw.c:528
> #2  0x40bd07e8 in fbdevHWSetVideoModes (pScrn=0x2142a0) at 
> ../../../../hw/xfree86/fbdevhw/fbdevhw.c:568
> #3  0x40cf5bec in ?? () from /usr/lib/xorg/modules/drivers//fbdev_drv.so
> #4  0x00074e88 in InitOutput ()
> #5  0x00039d04 in main ()
> 
> As you can see, the main video parameters are OK, while the 
> monitor/modeline values (pixclock, left_margin, right_margin, 
> upper_margin, lower_margin, hsync_len, vsync_len, sync and vmode)
> were changed to zero.

> Any ideas?

Given that the kernel considers the above as part of the video mode,
I believe that this is a kernel bug.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:02:43 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: X won't start with VisEG and 2.6.22.19
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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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> > Tracing with gdb gives the following:
> > 
> > Breakpoint 1, fbdev_modes_equal (set=0xfb5ed568, req=0xfb5ed4c8)
> >      at ../../../../hw/xfree86/fbdevhw/fbdevhw.c:256
> > 256     }
> > (gdb) p *set
> > $1 = {xres = 1024, yres = 768, xres_virtual = 1024, yres_virtual = 768, 
> > xoffset = 0, yoffset = 0,
> >    bits_per_pixel = 8, grayscale = 0, red = {offset = 0, length = 8, 
> > msb_right = 0}, green = {offset = 0,
> >      length = 8, msb_right = 0}, blue = {offset = 0, length = 8, 
> > msb_right = 0}, transp = {offset = 0,
> >      length = 0, msb_right = 0}, nonstd = 0, activate = 0, height = 0, 
> > width = 0, accel_flags = 0,
> >    pixclock = 0, left_margin = 0, right_margin = 0, upper_margin = 0, 
> > lower_margin = 0, hsync_len = 0,
> >    vsync_len = 0, sync = 0, vmode = 0, reserved = {0, 0, 0, 0, 0, 0}}
> > 
> > (gdb) p *req
> > $2 = {xres = 1024, yres = 768, xres_virtual = 1024, yres_virtual = 768, 
> > xoffset = 0, yoffset = 0,
> >    bits_per_pixel = 8, grayscale = 0, red = {offset = 0, length = 8, 
> > msb_right = 0}, green = {offset = 0,
> >      length = 8, msb_right = 0}, blue = {offset = 0, length = 8, 
> > msb_right = 0}, transp = {offset = 0,
> >      length = 0, msb_right = 0}, nonstd = 0, activate = 0, height = 0, 
> > width = 0, accel_flags = 0,
> >    pixclock = 22271, left_margin = 56, right_margin = 8, upper_margin = 
> > 41, lower_margin = 0,
> >    hsync_len = 176, vsync_len = 8, sync = 3, vmode = 1, reserved = {0, 
> > 0, 0, 0, 0, 0}}
> > 
> > (gdb) bt
> > #0  fbdev_modes_equal (set=0xfb5ed568, req=0xfb5ed4c8) at 
> > ../../../../hw/xfree86/fbdevhw/fbdevhw.c:256
> > #1  0x40bcfb64 in fbdevHWSetMode (pScrn=0x2142a0, mode=<value optimized 
> > out>, check=1)
> >      at ../../../../hw/xfree86/fbdevhw/fbdevhw.c:528
> > #2  0x40bd07e8 in fbdevHWSetVideoModes (pScrn=0x2142a0) at 
> > ../../../../hw/xfree86/fbdevhw/fbdevhw.c:568
> > #3  0x40cf5bec in ?? () from /usr/lib/xorg/modules/drivers//fbdev_drv.so
> > #4  0x00074e88 in InitOutput ()
> > #5  0x00039d04 in main ()
> > 
> > As you can see, the main video parameters are OK, while the 
> > monitor/modeline values (pixclock, left_margin, right_margin, 
> > upper_margin, lower_margin, hsync_len, vsync_len, sync and vmode)
> > were changed to zero.

It would appear that none of these values are relevant to the stifb.
The stifb.c code uses kzalloc to allocate the struct stifb_info, so
I think the above values should be zero.  Some code is clearly computing
values for pixclock, etc.  I don't see that this code is in the kernel.
It may be X that's making up these values.

I see in the log:

(II) FBDEV(0): hardware: stifb (video memory: 2048kB)
(II) FBDEV(0): checking modes against framebuffer device...
(II) FBDEV(0):  mode "1280x1024" test failed
(II) FBDEV(0): checking modes against monitor...
(--) FBDEV(0): Virtual size is 1280x1024 (pitch 1280)
(**) FBDEV(0):  Built-in mode "current": 28000.0 MHz, 21875.0 kHz, 21362.3 Hz
(II) FBDEV(0): Modeline "current"x0.0  28000.00  1280 1280 1280 1280  1024 1024 
1024 1024 -hsync -vsync -csync (21875.0 kHz)
(==) FBDEV(0): DPI set to (96, 96)

Could X be requesting a mode with invalid mode parameters?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:02:44 2018
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Hello Takashi,

Takashi Iwai wrote:
> At Fri, 22 Aug 2008 13:04:36 +0100,
> Joel Soete wrote:
>> Hello Takashi et al.,
> ...
>> I build and boot successfully kernel 32bit including your patch on 2 systems
>> (a b2k using sba and a d380 using ccio).
> 
> Thanks for testing!
> 
welcome ;-)

>> I just noticed that the above code is ~ the same; otoh there is also a
>> iommu-helpers.h containing also common code to those 2 drivers. So may be for
>> easiest maintenance, could you merge and move this code in this 'helper' as
>> follow:
>> --- ./drivers/parisc/iommu-helpers.h.Orig	2008-08-01 12:57:22.000000000 +0000
>> +++ ./drivers/parisc/iommu-helpers.h	2008-08-22 08:07:26.000000000 +0000
> 
> That sounds like a good idea.
> 
> One concern is to define a non-inline function in *.h.  But,

Yes (I thought too but didn't find any other good reason then avoiding useless duplicate code)

> iommu-helper.h is included only by these two drivers, so there is no
> problem as now, although a comment would be more helpful.
> 
Yes I hope it will be enough for this stuff to be accepted ;-)

> 
>>> diff --git a/include/asm-parisc/dma-mapping.h b/include/asm-parisc/dma-mapping.h
>>> index 53af696..5b357b3 100644
>>> --- a/include/asm-parisc/dma-mapping.h
>>> +++ b/include/asm-parisc/dma-mapping.h
>> The small issue encountered: against latest Kyle git tree (dated 2008-07-29)
>> this file was moved in arch/parisc/include/asm.
> 
> Yes.  My patches are still based on older version (2.6.27-rc2 or so).
> 
> git cares renaming well, so it shouldn't be a big problem.
> I just tested it now and git-pull (oh now it's "git pull" :) renames
> it automatically indeed.
> 
Cool (tbh I know very few about git just git clone to grab a tree and git pull to get update from time to time ;-))

> 
> thanks,
> 
> Takashi
> --
Tx to your attention,
	J.
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From: Helge Deller <deller@gmx.de>
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Subject: Re: X won't start with VisEG and 2.6.22.19
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John David Anglin wrote:
>>> Tracing with gdb gives the following:
>>>
>>> Breakpoint 1, fbdev_modes_equal (set=0xfb5ed568, req=0xfb5ed4c8)
>>>      at ../../../../hw/xfree86/fbdevhw/fbdevhw.c:256
>>> 256     }
>>> (gdb) p *set
>>> $1 = {xres = 1024, yres = 768, xres_virtual = 1024, yres_virtual = 768, 
>>> xoffset = 0, yoffset = 0,
>>>    bits_per_pixel = 8, grayscale = 0, red = {offset = 0, length = 8, 
>>> msb_right = 0}, green = {offset = 0,
>>>      length = 8, msb_right = 0}, blue = {offset = 0, length = 8, 
>>> msb_right = 0}, transp = {offset = 0,
>>>      length = 0, msb_right = 0}, nonstd = 0, activate = 0, height = 0, 
>>> width = 0, accel_flags = 0,
>>>    pixclock = 0, left_margin = 0, right_margin = 0, upper_margin = 0, 
>>> lower_margin = 0, hsync_len = 0,
>>>    vsync_len = 0, sync = 0, vmode = 0, reserved = {0, 0, 0, 0, 0, 0}}
>>>
>>> (gdb) p *req
>>> $2 = {xres = 1024, yres = 768, xres_virtual = 1024, yres_virtual = 768, 
>>> xoffset = 0, yoffset = 0,
>>>    bits_per_pixel = 8, grayscale = 0, red = {offset = 0, length = 8, 
>>> msb_right = 0}, green = {offset = 0,
>>>      length = 8, msb_right = 0}, blue = {offset = 0, length = 8, 
>>> msb_right = 0}, transp = {offset = 0,
>>>      length = 0, msb_right = 0}, nonstd = 0, activate = 0, height = 0, 
>>> width = 0, accel_flags = 0,
>>>    pixclock = 22271, left_margin = 56, right_margin = 8, upper_margin = 
>>> 41, lower_margin = 0,
>>>    hsync_len = 176, vsync_len = 8, sync = 3, vmode = 1, reserved = {0, 
>>> 0, 0, 0, 0, 0}}
>>>
>>> (gdb) bt
>>> #0  fbdev_modes_equal (set=0xfb5ed568, req=0xfb5ed4c8) at 
>>> ../../../../hw/xfree86/fbdevhw/fbdevhw.c:256
>>> #1  0x40bcfb64 in fbdevHWSetMode (pScrn=0x2142a0, mode=<value optimized 
>>> out>, check=1)
>>>      at ../../../../hw/xfree86/fbdevhw/fbdevhw.c:528
>>> #2  0x40bd07e8 in fbdevHWSetVideoModes (pScrn=0x2142a0) at 
>>> ../../../../hw/xfree86/fbdevhw/fbdevhw.c:568
>>> #3  0x40cf5bec in ?? () from /usr/lib/xorg/modules/drivers//fbdev_drv.so
>>> #4  0x00074e88 in InitOutput ()
>>> #5  0x00039d04 in main ()
>>>
>>> As you can see, the main video parameters are OK, while the 
>>> monitor/modeline values (pixclock, left_margin, right_margin, 
>>> upper_margin, lower_margin, hsync_len, vsync_len, sync and vmode)
>>> were changed to zero.
> 
> It would appear that none of these values are relevant to the stifb.
> The stifb.c code uses kzalloc to allocate the struct stifb_info, so
> I think the above values should be zero.  Some code is clearly computing
> values for pixclock, etc.  I don't see that this code is in the kernel.
> It may be X that's making up these values.
> 
> I see in the log:
> 
> (II) FBDEV(0): hardware: stifb (video memory: 2048kB)
> (II) FBDEV(0): checking modes against framebuffer device...
> (II) FBDEV(0):  mode "1280x1024" test failed
> (II) FBDEV(0): checking modes against monitor...
> (--) FBDEV(0): Virtual size is 1280x1024 (pitch 1280)
> (**) FBDEV(0):  Built-in mode "current": 28000.0 MHz, 21875.0 kHz, 21362.3 Hz
> (II) FBDEV(0): Modeline "current"x0.0  28000.00  1280 1280 1280 1280  1024 1024 
> 1024 1024 -hsync -vsync -csync (21875.0 kHz)
> (==) FBDEV(0): DPI set to (96, 96)
> 
> Could X be requesting a mode with invalid mode parameters?

In general X behaves correctly if you have a fb device, which is able to 
set sync timings.
But stifb and a few other fb drivers are not able to set sync timings, 
and for those X behaves IMHO wrong. For those X should assume that the 
timings set by the driver are correct as long as the resolution and bit 
depth are correct.

This is what happens:
1. In xorg.conf you configured a pixel resolution and bpp (e.g. 
1280x1024-16)
2. In xorg.conf you might have configured a monitor (with or without 
some timing/sync informations)
3. X reads those config parameters and try to set them through kernel calls.
4. Kernel returns that it now has set up the mode (1280x1024-16) and has 
set up the timings. Since stifb does not support timing modes, it 
returns zeros in those values (IMHO thats correct behavior if you look 
at the comments in skeletonfb.c)
5. X verifies the returned values and aborts since the timing values are 
different to what it fed to the kernel, although the resolution 
(1280x1024-16) is correctly set and returned like that.

I think X is right in noticing that the timing/sync values are not what 
it expected. Nevertheless, I would prefer that it would just warn (in 
the fbdev drivers only!) that the timings are incorrect instead of 
aborting completely. X is right to abort, if the pixel resolution and 
bpp can not be set.
So, X's tests should be like that:
a) resolution and bpp different -> abort
b) resolution and bpp correct, but sync timings/monitor timings 
different -> warn but continue

Right now X's tests are:
resolution, bpp or sync/monitor timings different -> abort.

Of course it's easily possible to change stifb in that it just takes any 
timing values, but that is not how it is documented in skeletonfb.

Helge
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From - Thu Nov 08 21:02:44 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: X won't start with VisEG and 2.6.22.19
Date: Sun, 24 Aug 2008 10:09:29 -0400 (EDT)
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To: deller@gmx.de (Helge Deller)
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> >>> As you can see, the main video parameters are OK, while the 
> >>> monitor/modeline values (pixclock, left_margin, right_margin, 
> >>> upper_margin, lower_margin, hsync_len, vsync_len, sync and vmode)
> >>> were changed to zero.

The skeletonfb.c code makes it very clear that the only place where
a mode can be changed is in xxxfb_check_var:

*      Exception to the above rule:  Some drivers have a fixed mode, ie,
*      the hardware is already set at boot up, and cannot be changed.  In
*      this case, it is more acceptable that this function just return
*      a copy of the currently working var (info->var). Better is to not
*      implement this function, as the upper layer will do the copying
*      of the current var for you.
*
*      Note:  This is the only function where the contents of var can be
*      freely adjusted after the driver has been registered. If you find
*      that you have code outside of this function that alters the content
*      of var, then you are doing something wrong.  Note also that the
*      contents of info->var must be left untouched at all times after
*      driver registration.

As xxxfb_check_var is not implemented in stifb.c, it must be the upper
level that is changing the parameters.  Possibly, something to try is
the following:

 *      However, even if your hardware does not support mode changing,
 *      a set_par might be needed to at least initialize the hardware to
 *      a known working state, especially if it came back from another
 *      process that also modifies the same hardware, such as X.
 *
 *      If this is the case, a combination such as the following should work:
 *
 *      static int xxxfb_check_var(struct fb_var_screeninfo *var,
 *                                struct fb_info *info)
 *      {
 *              *var = info->var;
 *              return 0;
 *      }
 *
 *      static int xxxfb_set_par(struct fb_info *info)
 *      {
 *              init your hardware here
 *      }

> But stifb and a few other fb drivers are not able to set sync timings, 
> and for those X behaves IMHO wrong. For those X should assume that the 
> timings set by the driver are correct as long as the resolution and bit 
> depth are correct.
> 
> This is what happens:
> 1. In xorg.conf you configured a pixel resolution and bpp (e.g. 
> 1280x1024-16)
> 2. In xorg.conf you might have configured a monitor (with or without 
> some timing/sync informations)
> 3. X reads those config parameters and try to set them through kernel calls.
> 4. Kernel returns that it now has set up the mode (1280x1024-16) and has 
> set up the timings. Since stifb does not support timing modes, it 
> returns zeros in those values (IMHO thats correct behavior if you look 
> at the comments in skeletonfb.c)
> 5. X verifies the returned values and aborts since the timing values are 
> different to what it fed to the kernel, although the resolution 
> (1280x1024-16) is correctly set and returned like that.
> 
> I think X is right in noticing that the timing/sync values are not what 
> it expected. Nevertheless, I would prefer that it would just warn (in 
> the fbdev drivers only!) that the timings are incorrect instead of 
> aborting completely. X is right to abort, if the pixel resolution and 
> bpp can not be set.
> So, X's tests should be like that:
> a) resolution and bpp different -> abort
> b) resolution and bpp correct, but sync timings/monitor timings 
> different -> warn but continue
> 
> Right now X's tests are:
> resolution, bpp or sync/monitor timings different -> abort.
> 
> Of course it's easily possible to change stifb in that it just takes any 
> timing values, but that is not how it is documented in skeletonfb.

My sense in looking at the PR is that the freedesktop people won't
accept this approach.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:02:44 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: X won't start with VisEG and 2.6.22.19
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	dave.anglin@nrc-cnrc.gc.ca, linux-parisc@vger.kernel.org
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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John David Anglin wrote:
>>>>> As you can see, the main video parameters are OK, while the 
>>>>> monitor/modeline values (pixclock, left_margin, right_margin, 
>>>>> upper_margin, lower_margin, hsync_len, vsync_len, sync and vmode)
>>>>> were changed to zero.
> 
> The skeletonfb.c code makes it very clear that the only place where
> a mode can be changed is in xxxfb_check_var:
> 
> *      Exception to the above rule:  Some drivers have a fixed mode, ie,
> *      the hardware is already set at boot up, and cannot be changed.  In
> *      this case, it is more acceptable that this function just return
> *      a copy of the currently working var (info->var). Better is to not
> *      implement this function, as the upper layer will do the copying
> *      of the current var for you.
> *
> *      Note:  This is the only function where the contents of var can be
> *      freely adjusted after the driver has been registered. If you find
> *      that you have code outside of this function that alters the content
> *      of var, then you are doing something wrong.  Note also that the
> *      contents of info->var must be left untouched at all times after
> *      driver registration.
> 
> As xxxfb_check_var is not implemented in stifb.c, it must be the upper
> level that is changing the parameters.  Possibly, something to try is
> the following:
> 
>  *      However, even if your hardware does not support mode changing,
>  *      a set_par might be needed to at least initialize the hardware to
>  *      a known working state, especially if it came back from another
>  *      process that also modifies the same hardware, such as X.
>  *
>  *      If this is the case, a combination such as the following should work:
>  *
>  *      static int xxxfb_check_var(struct fb_var_screeninfo *var,
>  *                                struct fb_info *info)
>  *      {
>  *              *var = info->var;
>  *              return 0;
>  *      }
>  *
>  *      static int xxxfb_set_par(struct fb_info *info)
>  *      {
>  *              init your hardware here
>  *      }


Yes, exactly that would be the patch to make it work.


>> But stifb and a few other fb drivers are not able to set sync timings, 
>> and for those X behaves IMHO wrong. For those X should assume that the 
>> timings set by the driver are correct as long as the resolution and bit 
>> depth are correct.
>>
>> This is what happens:
>> 1. In xorg.conf you configured a pixel resolution and bpp (e.g. 
>> 1280x1024-16)
>> 2. In xorg.conf you might have configured a monitor (with or without 
>> some timing/sync informations)
>> 3. X reads those config parameters and try to set them through kernel calls.
>> 4. Kernel returns that it now has set up the mode (1280x1024-16) and has 
>> set up the timings. Since stifb does not support timing modes, it 
>> returns zeros in those values (IMHO thats correct behavior if you look 
>> at the comments in skeletonfb.c)
>> 5. X verifies the returned values and aborts since the timing values are 
>> different to what it fed to the kernel, although the resolution 
>> (1280x1024-16) is correctly set and returned like that.
>>
>> I think X is right in noticing that the timing/sync values are not what 
>> it expected. Nevertheless, I would prefer that it would just warn (in 
>> the fbdev drivers only!) that the timings are incorrect instead of 
>> aborting completely. X is right to abort, if the pixel resolution and 
>> bpp can not be set.
>> So, X's tests should be like that:
>> a) resolution and bpp different -> abort
>> b) resolution and bpp correct, but sync timings/monitor timings 
>> different -> warn but continue
>>
>> Right now X's tests are:
>> resolution, bpp or sync/monitor timings different -> abort.
>>
>> Of course it's easily possible to change stifb in that it just takes any 
>> timing values, but that is not how it is documented in skeletonfb.
> 
> My sense in looking at the PR is that the freedesktop people won't
> accept this approach.

Sadly I have the same feeling.
But just scan yourself through the kernel fb drivers and look how many 
drivers haven't implemented this workaround with check_var and set_par.
All those fb drivers are probably broken due to this X behavior.

Helge
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The following mails contain patches which I have sent to linux-parisc during 
the last weeks and which have not yet been applied.
I've cleaned them up for Linus' and Kyle's current trees.

Helge
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] compat_sys_ptrace conversions for parisc
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This patch does the compat_sys_ptrace conversion for parisc.
In addition it does convert the parisc ptrace code to use the
architecture-independent ptrace infrastructure instead of own coding.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
index 3e94c5d..afa5333 100644
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -47,6 +47,16 @@ struct pt_regs {
 
 #define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
 
+#define __ARCH_WANT_COMPAT_SYS_PTRACE
+
+struct task_struct;
+#define arch_has_single_step()	1
+void user_disable_single_step(struct task_struct *task);
+void user_enable_single_step(struct task_struct *task);
+
+#define arch_has_block_step()	1
+void user_enable_block_step(struct task_struct *task);
+
 /* XXX should we use iaoq[1] or iaoq[0] ? */
 #define user_mode(regs)			(((regs)->iaoq[0] & 3) ? 1 : 0)
 #define user_space(regs)		(((regs)->iasq[1] != 0) ? 1 : 0)
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 49c6379..90904f9 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -4,6 +4,7 @@
  * Copyright (C) 2000 Hewlett-Packard Co, Linuxcare Inc.
  * Copyright (C) 2000 Matthew Wilcox <matthew@wil.cx>
  * Copyright (C) 2000 David Huggins-Daines <dhd@debian.org>
+ * Copyright (C) 2008 Helge Deller <deller@gmx.de>
  */
 
 #include <linux/kernel.h>
@@ -27,15 +28,149 @@
 /* PSW bits we allow the debugger to modify */
 #define USER_PSW_BITS	(PSW_N | PSW_V | PSW_CB)
 
-#undef DEBUG_PTRACE
+/*
+ * Called by kernel/ptrace.c when detaching..
+ *
+ * Make sure single step bits etc are not set.
+ */
+void ptrace_disable(struct task_struct *task)
+{
+	task->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP);
 
-#ifdef DEBUG_PTRACE
-#define DBG(x...)	printk(x)
-#else
-#define DBG(x...)
-#endif
+	/* make sure the trap bits are not set */
+	pa_psw(task)->r = 0;
+	pa_psw(task)->t = 0;
+	pa_psw(task)->h = 0;
+	pa_psw(task)->l = 0;
+}
+
+/*
+ * The following functions are called by ptrace_resume() when
+ * enabling or disabling single/block tracing.
+ */
+void user_disable_single_step(struct task_struct *task)
+{
+	ptrace_disable(task);
+}
+
+void user_enable_single_step(struct task_struct *task)
+{
+	task->ptrace &= ~PT_BLOCKSTEP;
+	task->ptrace |= PT_SINGLESTEP;
+
+	if (pa_psw(task)->n) {
+		struct siginfo si;
+
+		/* Nullified, just crank over the queue. */
+		task_regs(task)->iaoq[0] = task_regs(task)->iaoq[1];
+		task_regs(task)->iasq[0] = task_regs(task)->iasq[1];
+		task_regs(task)->iaoq[1] = task_regs(task)->iaoq[0] + 4;
+		pa_psw(task)->n = 0;
+		pa_psw(task)->x = 0;
+		pa_psw(task)->y = 0;
+		pa_psw(task)->z = 0;
+		pa_psw(task)->b = 0;
+		ptrace_disable(task);
+		/* Don't wake up the task, but let the
+		   parent know something happened. */
+		si.si_code = TRAP_TRACE;
+		si.si_addr = (void __user *) (task_regs(task)->iaoq[0] & ~3);
+		si.si_signo = SIGTRAP;
+		si.si_errno = 0;
+		force_sig_info(SIGTRAP, &si, task);
+		/* notify_parent(task, SIGCHLD); */
+		return;
+	}
+
+	/* Enable recovery counter traps.  The recovery counter
+	 * itself will be set to zero on a task switch.  If the
+	 * task is suspended on a syscall then the syscall return
+	 * path will overwrite the recovery counter with a suitable
+	 * value such that it traps once back in user space.  We
+	 * disable interrupts in the tasks PSW here also, to avoid
+	 * interrupts while the recovery counter is decrementing.
+	 */
+	pa_psw(task)->r = 1;
+	pa_psw(task)->t = 0;
+	pa_psw(task)->h = 0;
+	pa_psw(task)->l = 0;
+}
+
+void user_enable_block_step(struct task_struct *task)
+{
+	task->ptrace &= ~PT_SINGLESTEP;
+	task->ptrace |= PT_BLOCKSTEP;
+
+	/* Enable taken branch trap. */
+	pa_psw(task)->r = 0;
+	pa_psw(task)->t = 1;
+	pa_psw(task)->h = 0;
+	pa_psw(task)->l = 0;
+}
+
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+{
+	unsigned long tmp;
+	long ret = -EIO;
 
-#ifdef CONFIG_64BIT
+	switch (request) {
+
+	/* Read the word at location addr in the USER area.  For ptraced
+	   processes, the kernel saves all regs on a syscall. */
+	case PTRACE_PEEKUSR:
+		if ((addr & (sizeof(long)-1)) ||
+		    (unsigned long) addr >= sizeof(struct pt_regs))
+			break;
+		tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
+		ret = put_user(tmp, (unsigned long *) data);
+		break;
+
+	/* Write the word at location addr in the USER area.  This will need
+	   to change when the kernel no longer saves all regs on a syscall.
+	   FIXME.  There is a problem at the moment in that r3-r18 are only
+	   saved if the process is ptraced on syscall entry, and even then
+	   those values are overwritten by actual register values on syscall
+	   exit. */
+	case PTRACE_POKEUSR:
+		/* Some register values written here may be ignored in
+		 * entry.S:syscall_restore_rfi; e.g. iaoq is written with
+		 * r31/r31+4, and not with the values in pt_regs.
+		 */
+		if (addr == PT_PSW) {
+			/* Allow writing to Nullify, Divide-step-correction,
+			 * and carry/borrow bits.
+			 * BEWARE, if you set N, and then single step, it won't
+			 * stop on the nullified instruction.
+			 */
+			data &= USER_PSW_BITS;
+			task_regs(child)->gr[0] &= ~USER_PSW_BITS;
+			task_regs(child)->gr[0] |= data;
+			ret = 0;
+			break;
+		}
+
+		if ((addr & (sizeof(long)-1)) ||
+		    (unsigned long) addr >= sizeof(struct pt_regs))
+			break;
+		if ((addr >= PT_GR1 && addr <= PT_GR31) ||
+				addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
+				(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
+				addr == PT_SAR) {
+			*(unsigned long *) ((char *) task_regs(child) + addr) = data;
+			ret = 0;
+		}
+		break;
+
+	default:
+		ret = ptrace_request(child, request, addr, data);
+		break;
+	}
+
+	return ret;
+}
+
+
+#ifdef CONFIG_COMPAT
 
 /* This function is needed to translate 32 bit pt_regs offsets in to
  * 64 bit pt_regs offsets.  For example, a 32 bit gdb under a 64 bit kernel
@@ -61,106 +196,25 @@ static long translate_usr_offset(long offset)
 	else
 		return -1;
 }
-#endif
 
-/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure single step bits etc are not set.
- */
-void ptrace_disable(struct task_struct *child)
+long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
+			compat_ulong_t addr, compat_ulong_t data)
 {
-	/* make sure the trap bits are not set */
-	pa_psw(child)->r = 0;
-	pa_psw(child)->t = 0;
-	pa_psw(child)->h = 0;
-	pa_psw(child)->l = 0;
-}
-
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
-{
-	long ret;
-#ifdef DEBUG_PTRACE
-	long oaddr=addr, odata=data;
-#endif
+	compat_uint_t tmp;
+	long ret = -EIO;
 
 	switch (request) {
-	case PTRACE_PEEKTEXT: /* read word at location addr. */ 
-	case PTRACE_PEEKDATA: {
-#ifdef CONFIG_64BIT
-		if (__is_compat_task(child)) {
-			int copied;
-			unsigned int tmp;
-
-			addr &= 0xffffffffL;
-			copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
-			ret = -EIO;
-			if (copied != sizeof(tmp))
-				goto out_tsk;
-			ret = put_user(tmp,(unsigned int *) data);
-			DBG("sys_ptrace(PEEK%s, %d, %lx, %lx) returning %ld, data %x\n",
-				request == PTRACE_PEEKTEXT ? "TEXT" : "DATA",
-				pid, oaddr, odata, ret, tmp);
-		}
-		else
-#endif
-			ret = generic_ptrace_peekdata(child, addr, data);
-		goto out_tsk;
-	}
 
-	/* when I and D space are separate, this will have to be fixed. */
-	case PTRACE_POKETEXT: /* write the word at location addr. */
-	case PTRACE_POKEDATA:
-		ret = 0;
-#ifdef CONFIG_64BIT
-		if (__is_compat_task(child)) {
-			unsigned int tmp = (unsigned int)data;
-			DBG("sys_ptrace(POKE%s, %d, %lx, %lx)\n",
-				request == PTRACE_POKETEXT ? "TEXT" : "DATA",
-				pid, oaddr, odata);
-			addr &= 0xffffffffL;
-			if (access_process_vm(child, addr, &tmp, sizeof(tmp), 1) == sizeof(tmp))
-				goto out_tsk;
-		}
-		else
-#endif
-		{
-			if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
-				goto out_tsk;
-		}
-		ret = -EIO;
-		goto out_tsk;
-
-	/* Read the word at location addr in the USER area.  For ptraced
-	   processes, the kernel saves all regs on a syscall. */
-	case PTRACE_PEEKUSR: {
-		ret = -EIO;
-#ifdef CONFIG_64BIT
-		if (__is_compat_task(child)) {
-			unsigned int tmp;
-
-			if (addr & (sizeof(int)-1))
-				goto out_tsk;
-			if ((addr = translate_usr_offset(addr)) < 0)
-				goto out_tsk;
-
-			tmp = *(unsigned int *) ((char *) task_regs(child) + addr);
-			ret = put_user(tmp, (unsigned int *) data);
-			DBG("sys_ptrace(PEEKUSR, %d, %lx, %lx) returning %ld, addr %lx, data %x\n",
-				pid, oaddr, odata, ret, addr, tmp);
-		}
-		else
-#endif
-		{
-			unsigned long tmp;
+	case PTRACE_PEEKUSR:
+		if (addr & (sizeof(compat_uint_t)-1))
+			break;
+		addr = translate_usr_offset(addr);
+		if (addr < 0)
+			break;
 
-			if ((addr & (sizeof(long)-1)) || (unsigned long) addr >= sizeof(struct pt_regs))
-				goto out_tsk;
-			tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
-			ret = put_user(tmp, (unsigned long *) data);
-		}
-		goto out_tsk;
-	}
+		tmp = *(compat_uint_t *) ((char *) task_regs(child) + addr);
+		ret = put_user(tmp, (compat_uint_t *) (unsigned long) data);
+		break;
 
 	/* Write the word at location addr in the USER area.  This will need
 	   to change when the kernel no longer saves all regs on a syscall.
@@ -169,185 +223,46 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	   those values are overwritten by actual register values on syscall
 	   exit. */
 	case PTRACE_POKEUSR:
-		ret = -EIO;
 		/* Some register values written here may be ignored in
 		 * entry.S:syscall_restore_rfi; e.g. iaoq is written with
 		 * r31/r31+4, and not with the values in pt_regs.
 		 */
-		 /* PT_PSW=0, so this is valid for 32 bit processes under 64
-		 * bit kernels.
-		 */
 		if (addr == PT_PSW) {
-			/* PT_PSW=0, so this is valid for 32 bit processes
-			 * under 64 bit kernels.
-			 *
-			 * Allow writing to Nullify, Divide-step-correction,
-			 * and carry/borrow bits.
-			 * BEWARE, if you set N, and then single step, it won't
-			 * stop on the nullified instruction.
+			/* Since PT_PSW==0, it is valid for 32 bit processes
+			 * under 64 bit kernels as well.
 			 */
-			DBG("sys_ptrace(POKEUSR, %d, %lx, %lx)\n",
-				pid, oaddr, odata);
-			data &= USER_PSW_BITS;
-			task_regs(child)->gr[0] &= ~USER_PSW_BITS;
-			task_regs(child)->gr[0] |= data;
-			ret = 0;
-			goto out_tsk;
-		}
-#ifdef CONFIG_64BIT
-		if (__is_compat_task(child)) {
-			if (addr & (sizeof(int)-1))
-				goto out_tsk;
-			if ((addr = translate_usr_offset(addr)) < 0)
-				goto out_tsk;
-			DBG("sys_ptrace(POKEUSR, %d, %lx, %lx) addr %lx\n",
-				pid, oaddr, odata, addr);
+			ret = arch_ptrace(child, request, addr, data);
+		} else {
+			if (addr & (sizeof(compat_uint_t)-1))
+				break;
+			addr = translate_usr_offset(addr);
+			if (addr < 0)
+				break;
 			if (addr >= PT_FR0 && addr <= PT_FR31 + 4) {
 				/* Special case, fp regs are 64 bits anyway */
-				*(unsigned int *) ((char *) task_regs(child) + addr) = data;
+				*(__u64 *) ((char *) task_regs(child) + addr) = data;
 				ret = 0;
 			}
 			else if ((addr >= PT_GR1+4 && addr <= PT_GR31+4) ||
 					addr == PT_IAOQ0+4 || addr == PT_IAOQ1+4 ||
 					addr == PT_SAR+4) {
 				/* Zero the top 32 bits */
-				*(unsigned int *) ((char *) task_regs(child) + addr - 4) = 0;
-				*(unsigned int *) ((char *) task_regs(child) + addr) = data;
+				*(__u32 *) ((char *) task_regs(child) + addr - 4) = 0;
+				*(__u32 *) ((char *) task_regs(child) + addr) = data;
 				ret = 0;
 			}
-			goto out_tsk;
 		}
-		else
-#endif
-		{
-			if ((addr & (sizeof(long)-1)) || (unsigned long) addr >= sizeof(struct pt_regs))
-				goto out_tsk;
-			if ((addr >= PT_GR1 && addr <= PT_GR31) ||
-					addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
-					(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
-					addr == PT_SAR) {
-				*(unsigned long *) ((char *) task_regs(child) + addr) = data;
-				ret = 0;
-			}
-			goto out_tsk;
-		}
-
-	case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
-	case PTRACE_CONT:
-		ret = -EIO;
-		DBG("sys_ptrace(%s)\n",
-			request == PTRACE_SYSCALL ? "SYSCALL" : "CONT");
-		if (!valid_signal(data))
-			goto out_tsk;
-		child->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP);
-		if (request == PTRACE_SYSCALL) {
-			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		} else {
-			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		}		
-		child->exit_code = data;
-		goto out_wake_notrap;
-
-	case PTRACE_KILL:
-		/*
-		 * make the child exit.  Best I can do is send it a
-		 * sigkill.  perhaps it should be put in the status
-		 * that it wants to exit.
-		 */
-		ret = 0;
-		DBG("sys_ptrace(KILL)\n");
-		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
-			goto out_tsk;
-		child->exit_code = SIGKILL;
-		goto out_wake_notrap;
-
-	case PTRACE_SINGLEBLOCK:
-		DBG("sys_ptrace(SINGLEBLOCK)\n");
-		ret = -EIO;
-		if (!valid_signal(data))
-			goto out_tsk;
-		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		child->ptrace &= ~PT_SINGLESTEP;
-		child->ptrace |= PT_BLOCKSTEP;
-		child->exit_code = data;
-
-		/* Enable taken branch trap. */
-		pa_psw(child)->r = 0;
-		pa_psw(child)->t = 1;
-		pa_psw(child)->h = 0;
-		pa_psw(child)->l = 0;
-		goto out_wake;
-
-	case PTRACE_SINGLESTEP:
-		DBG("sys_ptrace(SINGLESTEP)\n");
-		ret = -EIO;
-		if (!valid_signal(data))
-			goto out_tsk;
-
-		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		child->ptrace &= ~PT_BLOCKSTEP;
-		child->ptrace |= PT_SINGLESTEP;
-		child->exit_code = data;
-
-		if (pa_psw(child)->n) {
-			struct siginfo si;
-
-			/* Nullified, just crank over the queue. */
-			task_regs(child)->iaoq[0] = task_regs(child)->iaoq[1];
-			task_regs(child)->iasq[0] = task_regs(child)->iasq[1];
-			task_regs(child)->iaoq[1] = task_regs(child)->iaoq[0] + 4;
-			pa_psw(child)->n = 0;
-			pa_psw(child)->x = 0;
-			pa_psw(child)->y = 0;
-			pa_psw(child)->z = 0;
-			pa_psw(child)->b = 0;
-			ptrace_disable(child);
-			/* Don't wake up the child, but let the
-			   parent know something happened. */
-			si.si_code = TRAP_TRACE;
-			si.si_addr = (void __user *) (task_regs(child)->iaoq[0] & ~3);
-			si.si_signo = SIGTRAP;
-			si.si_errno = 0;
-			force_sig_info(SIGTRAP, &si, child);
-			//notify_parent(child, SIGCHLD);
-			//ret = 0;
-			goto out_wake;
-		}
-
-		/* Enable recovery counter traps.  The recovery counter
-		 * itself will be set to zero on a task switch.  If the
-		 * task is suspended on a syscall then the syscall return
-		 * path will overwrite the recovery counter with a suitable
-		 * value such that it traps once back in user space.  We
-		 * disable interrupts in the childs PSW here also, to avoid
-		 * interrupts while the recovery counter is decrementing.
-		 */
-		pa_psw(child)->r = 1;
-		pa_psw(child)->t = 0;
-		pa_psw(child)->h = 0;
-		pa_psw(child)->l = 0;
-		/* give it a chance to run. */
-		goto out_wake;
-
-	case PTRACE_GETEVENTMSG:
-                ret = put_user(child->ptrace_message, (unsigned int __user *) data);
-		goto out_tsk;
+		break;
 
 	default:
-		ret = ptrace_request(child, request, addr, data);
-		goto out_tsk;
+		ret = compat_ptrace_request(child, request, addr, data);
+		break;
 	}
 
-out_wake_notrap:
-	ptrace_disable(child);
-out_wake:
-	wake_up_process(child);
-	ret = 0;
-out_tsk:
-	DBG("arch_ptrace(%ld, %d, %lx, %lx) returning %ld\n",
-		request, pid, oaddr, odata, ret);
 	return ret;
 }
+#endif
+
 
 void syscall_trace(void)
 {
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 6b5ac38..e719f27 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -87,7 +87,7 @@
 	ENTRY_SAME(setuid)
 	ENTRY_SAME(getuid)
 	ENTRY_COMP(stime)		/* 25 */
-	ENTRY_SAME(ptrace)
+	ENTRY_COMP(ptrace)
 	ENTRY_SAME(alarm)
 	/* see stat comment */
 	ENTRY_COMP(newfstat)
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] fix crash when trying to unwind user space
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Fix kernel to not to try to unwind functions when crash
happens in userspace.
Without this patch kernel may needlessly crash for userspace faults.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 675f1d0..12276c8 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -121,18 +121,19 @@ static void print_fr(char *level, struct pt_regs *regs)
 
 void show_regs(struct pt_regs *regs)
 {
-	int i;
+	int i, user;
 	char *level;
 	unsigned long cr30, cr31;
 
-	level = user_mode(regs) ? KERN_DEBUG : KERN_CRIT;
+	user = user_mode(regs);
+	level = user ? KERN_DEBUG : KERN_CRIT;
 
 	print_gr(level, regs);
 
 	for (i = 0; i < 8; i += 4)
 		PRINTREGS(level, regs->sr, "sr", RFMT, i);
 
-	if (user_mode(regs))
+	if (user)
 		print_fr(level, regs);
 
 	cr30 = mfctl(30);
@@ -152,7 +153,8 @@ void show_regs(struct pt_regs *regs)
 	printk(level);
 	print_symbol(" RP(r2): %s\n", regs->gr[2]);
 
-	parisc_show_stack(current, NULL, regs);
+	if (!user)
+		parisc_show_stack(current, NULL, regs);
 }
 
 
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This .align 16 is misplaced and should be in front of the ENTRY(lws_lock_start).
Works because of pure luck since we have a .align PAGE_SIZE before it instead.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 69b6eeb..c6ff81f 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -640,7 +640,6 @@ END(sys_call_table64)
 	.align	PAGE_SIZE
 ENTRY(lws_lock_start)
 	/* lws locks */
-	.align 16
 	.rept 16
 	/* Keep locks aligned at 16-bytes */
 	.word 1
--
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Subject: Re: [PATCH] drop superfluous .align 16
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On Sun, 2008-08-24 at 20:51 +0200, Helge Deller wrote:
> This .align 16 is misplaced and should be in front of the ENTRY(lws_lock_start).
> Works because of pure luck since we have a .align PAGE_SIZE before it instead.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> index 69b6eeb..c6ff81f 100644
> --- a/arch/parisc/kernel/syscall.S
> +++ b/arch/parisc/kernel/syscall.S
> @@ -640,7 +640,6 @@ END(sys_call_table64)
>  	.align	PAGE_SIZE
>  ENTRY(lws_lock_start)
>  	/* lws locks */
> -	.align 16
>  	.rept 16
>  	/* Keep locks aligned at 16-bytes */
>  	.word 1

I think I'd really rather keep this.  It may be technically superfluous
because of the .align PAGE_SIZE above it, but that belongs to the
syscall table.  If anyone ever moved this section in head.S, the align
16 ensures nothing goes wrong.

James


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There are two reasons to expose the memory *a in the asm:

1) To prevent the compiler from discarding a preceeding write to *a, and
2) to prevent it from caching *a in a register over the asm.

The change has had a few days testing with a SMP build of 2.6.22.19
running on a rp3440.

This patch is about the correctness of the __ldcw() macro itself. 
The use of the macro should be confined to small inline functions 
to try to limit the effect of clobbering memory on GCC's optimization 
of loads and stores.

Signed-off-by: Dave Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
index ee80c92..d91357b 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -168,8 +168,8 @@ static inline void set_eiem(unsigned long val)
 /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
 #define __ldcw(a) ({						\
 	unsigned __ret;						\
-	__asm__ __volatile__(__LDCW " 0(%1),%0"			\
-		: "=r" (__ret) : "r" (a));			\
+	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
+		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
 	__ret;							\
 })
 
	
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] Change cpu_data[] and cpu_devices[] from array sized by NR_CPUS to per_cpu variables
Date: Sun, 24 Aug 2008 21:21:49 +0200
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!! Probably needs some testing on a SMP box before it can be applied !!

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 3c9d348..9d64df8 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -17,6 +17,7 @@
 #include <asm/ptrace.h>
 #include <asm/types.h>
 #include <asm/system.h>
+#include <asm/percpu.h>
 #endif /* __ASSEMBLY__ */
 
 #define KERNEL_STACK_SIZE 	(4*PAGE_SIZE)
@@ -109,8 +110,7 @@ struct cpuinfo_parisc {
 };
 
 extern struct system_cpuinfo_parisc boot_cpu_data;
-extern struct cpuinfo_parisc cpu_data[NR_CPUS];
-#define current_cpu_data cpu_data[smp_processor_id()]
+DECLARE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
 #define CPU_HVERSION ((boot_cpu_data.hversion >> 4) & 0x0FFF)
 
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 23ef950..3ee6b33 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -298,7 +298,7 @@ unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 	irq_desc[irq].affinity = cpumask_of_cpu(cpu);
 #endif
 
-	return cpu_data[cpu].txn_addr;
+	return per_cpu(cpu_data, cpu).txn_addr;
 }
 
 
@@ -309,8 +309,9 @@ unsigned long txn_alloc_addr(unsigned int virt_irq)
 	next_cpu++; /* assign to "next" CPU we want this bugger on */
 
 	/* validate entry */
-	while ((next_cpu < NR_CPUS) && (!cpu_data[next_cpu].txn_addr || 
-		!cpu_online(next_cpu)))
+	while ((next_cpu < NR_CPUS) &&
+		(!per_cpu(cpu_data, next_cpu).txn_addr ||
+		 !cpu_online(next_cpu)))
 		next_cpu++;
 
 	if (next_cpu >= NR_CPUS) 
@@ -359,7 +360,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 		printk(KERN_DEBUG "redirecting irq %d from CPU %d to %d\n",
 		       irq, smp_processor_id(), cpu);
 		gsc_writel(irq + CPU_IRQ_BASE,
-			   cpu_data[cpu].hpa);
+			   per_cpu(cpu_data, cpu).hpa);
 		goto set_out;
 	}
 #endif
@@ -421,5 +422,5 @@ void __init init_IRQ(void)
 
 void ack_bad_irq(unsigned int irq)
 {
-	printk("unexpected IRQ %d\n", irq);
+	printk(KERN_WARNING "unexpected IRQ %d\n", irq);
 }
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 370086f..678a031 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -3,7 +3,7 @@
  *    Initial setup-routines for HP 9000 based hardware.
  *
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
- *    Modifications for PA-RISC (C) 1999 Helge Deller <deller@gmx.de>
+ *    Modifications for PA-RISC (C) 1999-2008 Helge Deller <deller@gmx.de>
  *    Modifications copyright 1999 SuSE GmbH (Philipp Rumpf)
  *    Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net>
  *    Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org>
@@ -46,7 +46,7 @@
 struct system_cpuinfo_parisc boot_cpu_data __read_mostly;
 EXPORT_SYMBOL(boot_cpu_data);
 
-struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly;
+DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
 extern int update_cr16_clocksource(void);	/* from time.c */
 
@@ -69,6 +69,23 @@ extern int update_cr16_clocksource(void);	/* from time.c */
 */
 
 /**
+ * init_cpu_profiler - enable/setup per cpu profiling hooks.
+ * @cpunum: The processor instance.
+ *
+ * FIXME: doesn't do much yet...
+ */
+static void __cpuinit
+init_percpu_prof(unsigned long cpunum)
+{
+	struct cpuinfo_parisc *p;
+
+	p = &per_cpu(cpu_data, cpunum);
+	p->prof_counter = 1;
+	p->prof_multiplier = 1;
+}
+
+
+/**
  * processor_probe - Determine if processor driver should claim this device.
  * @dev: The device which has been found.
  *
@@ -147,7 +164,7 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 	}
 #endif
 
-	p = &cpu_data[cpuid];
+	p = &per_cpu(cpu_data, cpuid);
 	boot_cpu_data.cpu_count++;
 
 	/* initialize counters - CPU 0 gets it_value set in time_init() */
@@ -162,12 +179,9 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 #ifdef CONFIG_SMP
 	/*
 	** FIXME: review if any other initialization is clobbered
-	**	for boot_cpu by the above memset().
+	**	  for boot_cpu by the above memset().
 	*/
-
-	/* stolen from init_percpu_prof() */
-	cpu_data[cpuid].prof_counter = 1;
-	cpu_data[cpuid].prof_multiplier = 1;
+	init_percpu_prof(cpuid);
 #endif
 
 	/*
@@ -261,19 +275,6 @@ void __init collect_boot_cpu_data(void)
 }
 
 
-/**
- * init_cpu_profiler - enable/setup per cpu profiling hooks.
- * @cpunum: The processor instance.
- *
- * FIXME: doesn't do much yet...
- */
-static inline void __init
-init_percpu_prof(int cpunum)
-{
-	cpu_data[cpunum].prof_counter = 1;
-	cpu_data[cpunum].prof_multiplier = 1;
-}
-
 
 /**
  * init_per_cpu - Handle individual processor initializations.
@@ -293,7 +294,7 @@ init_percpu_prof(int cpunum)
  *
  * o Enable CPU profiling hooks.
  */
-int __init init_per_cpu(int cpunum)
+int __cpuinit init_per_cpu(int cpunum)
 {
 	int ret;
 	struct pdc_coproc_cfg coproc_cfg;
@@ -307,8 +308,8 @@ int __init init_per_cpu(int cpunum)
 		/* FWIW, FP rev/model is a more accurate way to determine
 		** CPU type. CPU rev/model has some ambiguous cases.
 		*/
-		cpu_data[cpunum].fp_rev = coproc_cfg.revision;
-		cpu_data[cpunum].fp_model = coproc_cfg.model;
+		per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
+		per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
 
 		printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
 			cpunum, coproc_cfg.revision, coproc_cfg.model);
@@ -344,16 +345,17 @@ int __init init_per_cpu(int cpunum)
 int
 show_cpuinfo (struct seq_file *m, void *v)
 {
-	int	n;
+	unsigned long cpu;
 
-	for(n=0; n<boot_cpu_data.cpu_count; n++) {
+	for_each_online_cpu(cpu) {
+		const struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
 #ifdef CONFIG_SMP
-		if (0 == cpu_data[n].hpa)
+		if (0 == cpuinfo->hpa)
 			continue;
 #endif
-		seq_printf(m, "processor\t: %d\n"
+		seq_printf(m, "processor\t: %lu\n"
 				"cpu family\t: PA-RISC %s\n",
-				 n, boot_cpu_data.family_name);
+				 cpu, boot_cpu_data.family_name);
 
 		seq_printf(m, "cpu\t\t: %s\n",  boot_cpu_data.cpu_name );
 
@@ -365,8 +367,8 @@ show_cpuinfo (struct seq_file *m, void *v)
 		seq_printf(m, "model\t\t: %s\n"
 				"model name\t: %s\n",
 				 boot_cpu_data.pdc.sys_model_name,
-				 cpu_data[n].dev ? 
-				 cpu_data[n].dev->name : "Unknown" );
+				 cpuinfo->dev ?
+				 cpuinfo->dev->name : "Unknown" );
 
 		seq_printf(m, "hversion\t: 0x%08x\n"
 			        "sversion\t: 0x%08x\n",
@@ -377,8 +379,8 @@ show_cpuinfo (struct seq_file *m, void *v)
 		show_cache_info(m);
 
 		seq_printf(m, "bogomips\t: %lu.%02lu\n",
-			     cpu_data[n].loops_per_jiffy / (500000 / HZ),
-			     (cpu_data[n].loops_per_jiffy / (5000 / HZ)) % 100);
+			     cpuinfo->loops_per_jiffy / (500000 / HZ),
+			     (cpuinfo->loops_per_jiffy / (5000 / HZ)) % 100);
 
 		seq_printf(m, "software id\t: %ld\n\n",
 				boot_cpu_data.pdc.model.sw_id);
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index a59b71e..eec84df 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -319,7 +319,7 @@ static int __init parisc_init(void)
 	
 	processor_init();
 	printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
-			boot_cpu_data.cpu_count,
+			num_present_cpus(),
 			boot_cpu_data.cpu_name,
 			boot_cpu_data.cpu_hz / 1000000,
 			boot_cpu_data.cpu_hz % 1000000	);
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index d47f397..148667e 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -56,16 +56,17 @@ static int smp_debug_lvl = 0;
 		if (lvl >= smp_debug_lvl)	\
 			printk(printargs);
 #else
-#define smp_debug(lvl, ...)
+#define smp_debug(lvl, ...)	do { } while(0)
 #endif /* DEBUG_SMP */
 
 DEFINE_SPINLOCK(smp_lock);
 
 volatile struct task_struct *smp_init_current_idle_task;
 
-static volatile int cpu_now_booting __read_mostly = 0;	/* track which CPU is booting */
+/* track which CPU is booting */
+static volatile int cpu_now_booting __cpuinitdata;
 
-static int parisc_max_cpus __read_mostly = 1;
+static int parisc_max_cpus __cpuinitdata = 1;
 
 /* online cpus are ones that we've managed to bring up completely
  * possible cpus are all valid cpu 
@@ -138,7 +139,7 @@ irqreturn_t
 ipi_interrupt(int irq, void *dev_id) 
 {
 	int this_cpu = smp_processor_id();
-	struct cpuinfo_parisc *p = &cpu_data[this_cpu];
+	struct cpuinfo_parisc *p = &per_cpu(cpu_data, this_cpu);
 	unsigned long ops;
 	unsigned long flags;
 
@@ -217,13 +218,13 @@ ipi_interrupt(int irq, void *dev_id)
 static inline void
 ipi_send(int cpu, enum ipi_message_type op)
 {
-	struct cpuinfo_parisc *p = &cpu_data[cpu];
+	struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpu);
 	spinlock_t *lock = &per_cpu(ipi_lock, cpu);
 	unsigned long flags;
 
 	spin_lock_irqsave(lock, flags);
 	p->pending_ipi |= 1 << op;
-	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, cpu_data[cpu].hpa);
+	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, p->hpa);
 	spin_unlock_irqrestore(lock, flags);
 }
 
@@ -239,10 +240,7 @@ send_IPI_mask(cpumask_t mask, enum ipi_message_type op)
 static inline void
 send_IPI_single(int dest_cpu, enum ipi_message_type op)
 {
-	if (dest_cpu == NO_PROC_ID) {
-		BUG();
-		return;
-	}
+	BUG_ON(dest_cpu == NO_PROC_ID);
 
 	ipi_send(dest_cpu, op);
 }
@@ -324,8 +322,7 @@ smp_cpu_init(int cpunum)
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);
 	current->active_mm = &init_mm;
-	if(current->mm)
-		BUG();
+	BUG_ON(current->mm);
 	enter_lazy_tlb(&init_mm, current);
 
 	init_IRQ();   /* make sure no IRQs are enabled or pending */
@@ -360,6 +357,7 @@ void __init smp_callin(void)
  */
 int __cpuinit smp_boot_one_cpu(int cpuid)
 {
+	const struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpuid);
 	struct task_struct *idle;
 	long timeout;
 
@@ -391,7 +389,7 @@ int __cpuinit smp_boot_one_cpu(int cpuid)
 	smp_init_current_idle_task = idle ;
 	mb();
 
-	printk("Releasing cpu %d now, hpa=%lx\n", cpuid, cpu_data[cpuid].hpa);
+	printk(KERN_INFO "Releasing cpu %d now, hpa=%lx\n", cpuid, p->hpa);
 
 	/*
 	** This gets PDC to release the CPU from a very tight loop.
@@ -402,7 +400,7 @@ int __cpuinit smp_boot_one_cpu(int cpuid)
 	** EIR{0}). MEM_RENDEZ is valid only when it is nonzero and the 
 	** contents of memory are valid."
 	*/
-	gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, cpu_data[cpuid].hpa);
+	gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, p->hpa);
 	mb();
 
 	/* 
@@ -434,12 +432,12 @@ alive:
 	return 0;
 }
 
-void __devinit smp_prepare_boot_cpu(void)
+void __init smp_prepare_boot_cpu(void)
 {
-	int bootstrap_processor=cpu_data[0].cpuid;	/* CPU ID of BSP */
+	int bootstrap_processor = per_cpu(cpu_data, 0).cpuid;
 
 	/* Setup BSP mappings */
-	printk("SMP: bootstrap CPU ID is %d\n",bootstrap_processor);
+	printk(KERN_INFO "SMP: bootstrap CPU ID is %d\n", bootstrap_processor);
 
 	cpu_set(bootstrap_processor, cpu_online_map);
 	cpu_set(bootstrap_processor, cpu_present_map);
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 24be86b..9db61b4 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -59,7 +59,7 @@ irqreturn_t timer_interrupt(int irq, void *dev_id)
 	unsigned long cycles_elapsed, ticks_elapsed;
 	unsigned long cycles_remainder;
 	unsigned int cpu = smp_processor_id();
-	struct cpuinfo_parisc *cpuinfo = &cpu_data[cpu];
+	struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
 
 	/* gcc can optimize for "read-only" case with a local clocktick */
 	unsigned long cpt = clocktick;
@@ -212,7 +212,7 @@ void __init start_cpu_itimer(void)
 
 	mtctl(next_tick, 16);		/* kick off Interval Timer (CR16) */
 
-	cpu_data[cpu].it_value = next_tick;
+	per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
 void __init time_init(void)
diff --git a/arch/parisc/kernel/topology.c b/arch/parisc/kernel/topology.c
index d71cb01..f515938 100644
--- a/arch/parisc/kernel/topology.c
+++ b/arch/parisc/kernel/topology.c
@@ -22,14 +22,14 @@
 #include <linux/cpu.h>
 #include <linux/cache.h>
 
-static struct cpu cpu_devices[NR_CPUS] __read_mostly;
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
 
 static int __init topology_init(void)
 {
 	int num;
 
 	for_each_present_cpu(num) {
-		register_cpu(&cpu_devices[num], num);
+		register_cpu(&per_cpu(cpu_devices, num), num);
 	}
 	return 0;
 }
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From - Thu Nov 08 21:02:45 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] - Patch series for parisc
Date: Sun, 24 Aug 2008 21:49:46 +0200
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To: linux-parisc <linux-parisc@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	"Carlos O'Donell" <carlos@systemhalted.org>,
	John David Anglin <dave.anglin@nrc.ca>
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On Sunday 24 August 2008, Helge Deller wrote:
> The following mails contain patches which I have sent to linux-parisc during 
> the last weeks and which have not yet been applied.

Kyle, in addition to my patches it would be nice if you could apply
a final LWS documentation patch on which Carlos and John still want 
to agree on.
For reference here is the thread:
http://marc.info/?t=121612540800004&r=1&w=2

Helge
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] Change cpu_data[] and cpu_devices[] from array sized
 by NR_CPUS to per_cpu variables
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This is a multi-part message in MIME format.
--------------090901030001030601070502
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Updated patch attached, which fixes some build problems and section 
mismatches.
Boot-tested on a UP 32bit machine with CONFIG_SMP=y.

Signed-off-by: Helge Deller <deller@gmx.de>

--------------090901030001030601070502
Content-Type: text/x-patch;
 name="parisc-per-cpu3.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="parisc-per-cpu3.patch"

diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 3c9d348..9d64df8 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -17,6 +17,7 @@
 #include <asm/ptrace.h>
 #include <asm/types.h>
 #include <asm/system.h>
+#include <asm/percpu.h>
 #endif /* __ASSEMBLY__ */
 
 #define KERNEL_STACK_SIZE 	(4*PAGE_SIZE)
@@ -109,8 +110,7 @@ struct cpuinfo_parisc {
 };
 
 extern struct system_cpuinfo_parisc boot_cpu_data;
-extern struct cpuinfo_parisc cpu_data[NR_CPUS];
-#define current_cpu_data cpu_data[smp_processor_id()]
+DECLARE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
 #define CPU_HVERSION ((boot_cpu_data.hversion >> 4) & 0x0FFF)
 
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 03f26bd..f6d2412 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -151,7 +151,7 @@ static void convert_to_wide(unsigned long *addr)
 }
 
 #ifdef CONFIG_64BIT
-void __init set_firmware_width_unlocked(void)
+void __cpuinit set_firmware_width_unlocked(void)
 {
 	int ret;
 
@@ -168,7 +168,7 @@ void __init set_firmware_width_unlocked(void)
  * This function must be called before any pdc_* function that uses the
  * convert_to_wide function.
  */
-void __init set_firmware_width(void)
+void __cpuinit set_firmware_width(void)
 {
 	unsigned long flags;
 	spin_lock_irqsave(&pdc_lock, flags);
@@ -176,11 +176,11 @@ void __init set_firmware_width(void)
 	spin_unlock_irqrestore(&pdc_lock, flags);
 }
 #else
-void __init set_firmware_width_unlocked(void) {
+void __cpuinit set_firmware_width_unlocked(void) {
 	return;
 }
 
-void __init set_firmware_width(void) {
+void __cpuinit set_firmware_width(void) {
 	return;
 }
 #endif /*CONFIG_64BIT*/
@@ -302,7 +302,7 @@ int pdc_chassis_warn(unsigned long *warn)
 	return retval;
 }
 
-int __init pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
+int __cpuinit pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
 {
 	int ret;
 
@@ -323,7 +323,7 @@ int __init pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
  * This PDC call returns the presence and status of all the coprocessors
  * attached to the processor.
  */
-int __init pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info)
+int __cpuinit pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info)
 {
 	int ret;
 	unsigned long flags;
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 23ef950..3ee6b33 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -298,7 +298,7 @@ unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 	irq_desc[irq].affinity = cpumask_of_cpu(cpu);
 #endif
 
-	return cpu_data[cpu].txn_addr;
+	return per_cpu(cpu_data, cpu).txn_addr;
 }
 
 
@@ -309,8 +309,9 @@ unsigned long txn_alloc_addr(unsigned int virt_irq)
 	next_cpu++; /* assign to "next" CPU we want this bugger on */
 
 	/* validate entry */
-	while ((next_cpu < NR_CPUS) && (!cpu_data[next_cpu].txn_addr || 
-		!cpu_online(next_cpu)))
+	while ((next_cpu < NR_CPUS) &&
+		(!per_cpu(cpu_data, next_cpu).txn_addr ||
+		 !cpu_online(next_cpu)))
 		next_cpu++;
 
 	if (next_cpu >= NR_CPUS) 
@@ -359,7 +360,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 		printk(KERN_DEBUG "redirecting irq %d from CPU %d to %d\n",
 		       irq, smp_processor_id(), cpu);
 		gsc_writel(irq + CPU_IRQ_BASE,
-			   cpu_data[cpu].hpa);
+			   per_cpu(cpu_data, cpu).hpa);
 		goto set_out;
 	}
 #endif
@@ -421,5 +422,5 @@ void __init init_IRQ(void)
 
 void ack_bad_irq(unsigned int irq)
 {
-	printk("unexpected IRQ %d\n", irq);
+	printk(KERN_WARNING "unexpected IRQ %d\n", irq);
 }
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 370086f..678a031 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -3,7 +3,7 @@
  *    Initial setup-routines for HP 9000 based hardware.
  *
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
- *    Modifications for PA-RISC (C) 1999 Helge Deller <deller@gmx.de>
+ *    Modifications for PA-RISC (C) 1999-2008 Helge Deller <deller@gmx.de>
  *    Modifications copyright 1999 SuSE GmbH (Philipp Rumpf)
  *    Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net>
  *    Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org>
@@ -46,7 +46,7 @@
 struct system_cpuinfo_parisc boot_cpu_data __read_mostly;
 EXPORT_SYMBOL(boot_cpu_data);
 
-struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly;
+DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
 extern int update_cr16_clocksource(void);	/* from time.c */
 
@@ -69,6 +69,23 @@ extern int update_cr16_clocksource(void);	/* from time.c */
 */
 
 /**
+ * init_cpu_profiler - enable/setup per cpu profiling hooks.
+ * @cpunum: The processor instance.
+ *
+ * FIXME: doesn't do much yet...
+ */
+static void __cpuinit
+init_percpu_prof(unsigned long cpunum)
+{
+	struct cpuinfo_parisc *p;
+
+	p = &per_cpu(cpu_data, cpunum);
+	p->prof_counter = 1;
+	p->prof_multiplier = 1;
+}
+
+
+/**
  * processor_probe - Determine if processor driver should claim this device.
  * @dev: The device which has been found.
  *
@@ -147,7 +164,7 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 	}
 #endif
 
-	p = &cpu_data[cpuid];
+	p = &per_cpu(cpu_data, cpuid);
 	boot_cpu_data.cpu_count++;
 
 	/* initialize counters - CPU 0 gets it_value set in time_init() */
@@ -162,12 +179,9 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 #ifdef CONFIG_SMP
 	/*
 	** FIXME: review if any other initialization is clobbered
-	**	for boot_cpu by the above memset().
+	**	  for boot_cpu by the above memset().
 	*/
-
-	/* stolen from init_percpu_prof() */
-	cpu_data[cpuid].prof_counter = 1;
-	cpu_data[cpuid].prof_multiplier = 1;
+	init_percpu_prof(cpuid);
 #endif
 
 	/*
@@ -261,19 +275,6 @@ void __init collect_boot_cpu_data(void)
 }
 
 
-/**
- * init_cpu_profiler - enable/setup per cpu profiling hooks.
- * @cpunum: The processor instance.
- *
- * FIXME: doesn't do much yet...
- */
-static inline void __init
-init_percpu_prof(int cpunum)
-{
-	cpu_data[cpunum].prof_counter = 1;
-	cpu_data[cpunum].prof_multiplier = 1;
-}
-
 
 /**
  * init_per_cpu - Handle individual processor initializations.
@@ -293,7 +294,7 @@ init_percpu_prof(int cpunum)
  *
  * o Enable CPU profiling hooks.
  */
-int __init init_per_cpu(int cpunum)
+int __cpuinit init_per_cpu(int cpunum)
 {
 	int ret;
 	struct pdc_coproc_cfg coproc_cfg;
@@ -307,8 +308,8 @@ int __init init_per_cpu(int cpunum)
 		/* FWIW, FP rev/model is a more accurate way to determine
 		** CPU type. CPU rev/model has some ambiguous cases.
 		*/
-		cpu_data[cpunum].fp_rev = coproc_cfg.revision;
-		cpu_data[cpunum].fp_model = coproc_cfg.model;
+		per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
+		per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
 
 		printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
 			cpunum, coproc_cfg.revision, coproc_cfg.model);
@@ -344,16 +345,17 @@ int __init init_per_cpu(int cpunum)
 int
 show_cpuinfo (struct seq_file *m, void *v)
 {
-	int	n;
+	unsigned long cpu;
 
-	for(n=0; n<boot_cpu_data.cpu_count; n++) {
+	for_each_online_cpu(cpu) {
+		const struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
 #ifdef CONFIG_SMP
-		if (0 == cpu_data[n].hpa)
+		if (0 == cpuinfo->hpa)
 			continue;
 #endif
-		seq_printf(m, "processor\t: %d\n"
+		seq_printf(m, "processor\t: %lu\n"
 				"cpu family\t: PA-RISC %s\n",
-				 n, boot_cpu_data.family_name);
+				 cpu, boot_cpu_data.family_name);
 
 		seq_printf(m, "cpu\t\t: %s\n",  boot_cpu_data.cpu_name );
 
@@ -365,8 +367,8 @@ show_cpuinfo (struct seq_file *m, void *v)
 		seq_printf(m, "model\t\t: %s\n"
 				"model name\t: %s\n",
 				 boot_cpu_data.pdc.sys_model_name,
-				 cpu_data[n].dev ? 
-				 cpu_data[n].dev->name : "Unknown" );
+				 cpuinfo->dev ?
+				 cpuinfo->dev->name : "Unknown" );
 
 		seq_printf(m, "hversion\t: 0x%08x\n"
 			        "sversion\t: 0x%08x\n",
@@ -377,8 +379,8 @@ show_cpuinfo (struct seq_file *m, void *v)
 		show_cache_info(m);
 
 		seq_printf(m, "bogomips\t: %lu.%02lu\n",
-			     cpu_data[n].loops_per_jiffy / (500000 / HZ),
-			     (cpu_data[n].loops_per_jiffy / (5000 / HZ)) % 100);
+			     cpuinfo->loops_per_jiffy / (500000 / HZ),
+			     (cpuinfo->loops_per_jiffy / (5000 / HZ)) % 100);
 
 		seq_printf(m, "software id\t: %ld\n\n",
 				boot_cpu_data.pdc.model.sw_id);
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index a59b71e..3965fd4 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -319,7 +319,7 @@ static int __init parisc_init(void)
 	
 	processor_init();
 	printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
-			boot_cpu_data.cpu_count,
+			num_present_cpus(),
 			boot_cpu_data.cpu_name,
 			boot_cpu_data.cpu_hz / 1000000,
 			boot_cpu_data.cpu_hz % 1000000	);
@@ -385,8 +385,8 @@ void start_parisc(void)
 	if (ret >= 0 && coproc_cfg.ccr_functional) {
 		mtctl(coproc_cfg.ccr_functional, 10);
 
-		cpu_data[cpunum].fp_rev = coproc_cfg.revision;
-		cpu_data[cpunum].fp_model = coproc_cfg.model;
+		per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
+		per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
 
 		asm volatile ("fstd	%fr0,8(%sp)");
 	} else {
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index d47f397..148667e 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -56,16 +56,17 @@ static int smp_debug_lvl = 0;
 		if (lvl >= smp_debug_lvl)	\
 			printk(printargs);
 #else
-#define smp_debug(lvl, ...)
+#define smp_debug(lvl, ...)	do { } while(0)
 #endif /* DEBUG_SMP */
 
 DEFINE_SPINLOCK(smp_lock);
 
 volatile struct task_struct *smp_init_current_idle_task;
 
-static volatile int cpu_now_booting __read_mostly = 0;	/* track which CPU is booting */
+/* track which CPU is booting */
+static volatile int cpu_now_booting __cpuinitdata;
 
-static int parisc_max_cpus __read_mostly = 1;
+static int parisc_max_cpus __cpuinitdata = 1;
 
 /* online cpus are ones that we've managed to bring up completely
  * possible cpus are all valid cpu 
@@ -138,7 +139,7 @@ irqreturn_t
 ipi_interrupt(int irq, void *dev_id) 
 {
 	int this_cpu = smp_processor_id();
-	struct cpuinfo_parisc *p = &cpu_data[this_cpu];
+	struct cpuinfo_parisc *p = &per_cpu(cpu_data, this_cpu);
 	unsigned long ops;
 	unsigned long flags;
 
@@ -217,13 +218,13 @@ ipi_interrupt(int irq, void *dev_id)
 static inline void
 ipi_send(int cpu, enum ipi_message_type op)
 {
-	struct cpuinfo_parisc *p = &cpu_data[cpu];
+	struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpu);
 	spinlock_t *lock = &per_cpu(ipi_lock, cpu);
 	unsigned long flags;
 
 	spin_lock_irqsave(lock, flags);
 	p->pending_ipi |= 1 << op;
-	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, cpu_data[cpu].hpa);
+	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, p->hpa);
 	spin_unlock_irqrestore(lock, flags);
 }
 
@@ -239,10 +240,7 @@ send_IPI_mask(cpumask_t mask, enum ipi_message_type op)
 static inline void
 send_IPI_single(int dest_cpu, enum ipi_message_type op)
 {
-	if (dest_cpu == NO_PROC_ID) {
-		BUG();
-		return;
-	}
+	BUG_ON(dest_cpu == NO_PROC_ID);
 
 	ipi_send(dest_cpu, op);
 }
@@ -324,8 +322,7 @@ smp_cpu_init(int cpunum)
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);
 	current->active_mm = &init_mm;
-	if(current->mm)
-		BUG();
+	BUG_ON(current->mm);
 	enter_lazy_tlb(&init_mm, current);
 
 	init_IRQ();   /* make sure no IRQs are enabled or pending */
@@ -360,6 +357,7 @@ void __init smp_callin(void)
  */
 int __cpuinit smp_boot_one_cpu(int cpuid)
 {
+	const struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpuid);
 	struct task_struct *idle;
 	long timeout;
 
@@ -391,7 +389,7 @@ int __cpuinit smp_boot_one_cpu(int cpuid)
 	smp_init_current_idle_task = idle ;
 	mb();
 
-	printk("Releasing cpu %d now, hpa=%lx\n", cpuid, cpu_data[cpuid].hpa);
+	printk(KERN_INFO "Releasing cpu %d now, hpa=%lx\n", cpuid, p->hpa);
 
 	/*
 	** This gets PDC to release the CPU from a very tight loop.
@@ -402,7 +400,7 @@ int __cpuinit smp_boot_one_cpu(int cpuid)
 	** EIR{0}). MEM_RENDEZ is valid only when it is nonzero and the 
 	** contents of memory are valid."
 	*/
-	gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, cpu_data[cpuid].hpa);
+	gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, p->hpa);
 	mb();
 
 	/* 
@@ -434,12 +432,12 @@ alive:
 	return 0;
 }
 
-void __devinit smp_prepare_boot_cpu(void)
+void __init smp_prepare_boot_cpu(void)
 {
-	int bootstrap_processor=cpu_data[0].cpuid;	/* CPU ID of BSP */
+	int bootstrap_processor = per_cpu(cpu_data, 0).cpuid;
 
 	/* Setup BSP mappings */
-	printk("SMP: bootstrap CPU ID is %d\n",bootstrap_processor);
+	printk(KERN_INFO "SMP: bootstrap CPU ID is %d\n", bootstrap_processor);
 
 	cpu_set(bootstrap_processor, cpu_online_map);
 	cpu_set(bootstrap_processor, cpu_present_map);
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 24be86b..9db61b4 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -59,7 +59,7 @@ irqreturn_t timer_interrupt(int irq, void *dev_id)
 	unsigned long cycles_elapsed, ticks_elapsed;
 	unsigned long cycles_remainder;
 	unsigned int cpu = smp_processor_id();
-	struct cpuinfo_parisc *cpuinfo = &cpu_data[cpu];
+	struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
 
 	/* gcc can optimize for "read-only" case with a local clocktick */
 	unsigned long cpt = clocktick;
@@ -212,7 +212,7 @@ void __init start_cpu_itimer(void)
 
 	mtctl(next_tick, 16);		/* kick off Interval Timer (CR16) */
 
-	cpu_data[cpu].it_value = next_tick;
+	per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
 void __init time_init(void)
diff --git a/arch/parisc/kernel/topology.c b/arch/parisc/kernel/topology.c
index d71cb01..f515938 100644
--- a/arch/parisc/kernel/topology.c
+++ b/arch/parisc/kernel/topology.c
@@ -22,14 +22,14 @@
 #include <linux/cpu.h>
 #include <linux/cache.h>
 
-static struct cpu cpu_devices[NR_CPUS] __read_mostly;
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
 
 static int __init topology_init(void)
 {
 	int num;
 
 	for_each_present_cpu(num) {
-		register_cpu(&cpu_devices[num], num);
+		register_cpu(&per_cpu(cpu_devices, num), num);
 	}
 	return 0;
 }

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From - Thu Nov 08 21:02:45 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] drop superfluous .align 16
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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James Bottomley wrote:
> On Sun, 2008-08-24 at 20:51 +0200, Helge Deller wrote:
>> This .align 16 is misplaced and should be in front of the ENTRY(lws_lock_start).
>> Works because of pure luck since we have a .align PAGE_SIZE before it instead.
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
>> index 69b6eeb..c6ff81f 100644
>> --- a/arch/parisc/kernel/syscall.S
>> +++ b/arch/parisc/kernel/syscall.S
>> @@ -640,7 +640,6 @@ END(sys_call_table64)
>>  	.align	PAGE_SIZE
>>  ENTRY(lws_lock_start)
>>  	/* lws locks */
>> -	.align 16
>>  	.rept 16
>>  	/* Keep locks aligned at 16-bytes */
>>  	.word 1
> 
> I think I'd really rather keep this.  It may be technically superfluous
> because of the .align PAGE_SIZE above it, but that belongs to the
> syscall table.  

> If anyone ever moved this section in head.S, the align
> 16 ensures nothing goes wrong.

Hi James,

If the block is moved, then that's exactly what this .align does not 
ensure.
We had this discussion already here on the list. Please read the full 
thread: http://marc.info/?t=121554765000005&r=1&w=2

Helge
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From - Thu Nov 08 21:02:45 2018
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From: Christoph Hellwig <hch@lst.de>
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Subject: Re: [PATCH] compat_sys_ptrace conversions for parisc
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Cc: linux-parisc <linux-parisc@vger.kernel.org>,
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This should probably get a little review from Rland, I've added him to
the Cc list.  Although I suspect splitting this into at least two
patches for compat_sys_ptrace vs the rest might make sense.

On Sun, Aug 24, 2008 at 08:33:25PM +0200, Helge Deller wrote:
> This patch does the compat_sys_ptrace conversion for parisc.
> In addition it does convert the parisc ptrace code to use the
> architecture-independent ptrace infrastructure instead of own coding.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
> index 3e94c5d..afa5333 100644
> --- a/arch/parisc/include/asm/ptrace.h
> +++ b/arch/parisc/include/asm/ptrace.h
> @@ -47,6 +47,16 @@ struct pt_regs {
>  
>  #define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
>  
> +#define __ARCH_WANT_COMPAT_SYS_PTRACE
> +
> +struct task_struct;
> +#define arch_has_single_step()	1
> +void user_disable_single_step(struct task_struct *task);
> +void user_enable_single_step(struct task_struct *task);
> +
> +#define arch_has_block_step()	1
> +void user_enable_block_step(struct task_struct *task);
> +
>  /* XXX should we use iaoq[1] or iaoq[0] ? */
>  #define user_mode(regs)			(((regs)->iaoq[0] & 3) ? 1 : 0)
>  #define user_space(regs)		(((regs)->iasq[1] != 0) ? 1 : 0)
> diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
> index 49c6379..90904f9 100644
> --- a/arch/parisc/kernel/ptrace.c
> +++ b/arch/parisc/kernel/ptrace.c
> @@ -4,6 +4,7 @@
>   * Copyright (C) 2000 Hewlett-Packard Co, Linuxcare Inc.
>   * Copyright (C) 2000 Matthew Wilcox <matthew@wil.cx>
>   * Copyright (C) 2000 David Huggins-Daines <dhd@debian.org>
> + * Copyright (C) 2008 Helge Deller <deller@gmx.de>
>   */
>  
>  #include <linux/kernel.h>
> @@ -27,15 +28,149 @@
>  /* PSW bits we allow the debugger to modify */
>  #define USER_PSW_BITS	(PSW_N | PSW_V | PSW_CB)
>  
> -#undef DEBUG_PTRACE
> +/*
> + * Called by kernel/ptrace.c when detaching..
> + *
> + * Make sure single step bits etc are not set.
> + */
> +void ptrace_disable(struct task_struct *task)
> +{
> +	task->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP);
>  
> -#ifdef DEBUG_PTRACE
> -#define DBG(x...)	printk(x)
> -#else
> -#define DBG(x...)
> -#endif
> +	/* make sure the trap bits are not set */
> +	pa_psw(task)->r = 0;
> +	pa_psw(task)->t = 0;
> +	pa_psw(task)->h = 0;
> +	pa_psw(task)->l = 0;
> +}
> +
> +/*
> + * The following functions are called by ptrace_resume() when
> + * enabling or disabling single/block tracing.
> + */
> +void user_disable_single_step(struct task_struct *task)
> +{
> +	ptrace_disable(task);
> +}
> +
> +void user_enable_single_step(struct task_struct *task)
> +{
> +	task->ptrace &= ~PT_BLOCKSTEP;
> +	task->ptrace |= PT_SINGLESTEP;
> +
> +	if (pa_psw(task)->n) {
> +		struct siginfo si;
> +
> +		/* Nullified, just crank over the queue. */
> +		task_regs(task)->iaoq[0] = task_regs(task)->iaoq[1];
> +		task_regs(task)->iasq[0] = task_regs(task)->iasq[1];
> +		task_regs(task)->iaoq[1] = task_regs(task)->iaoq[0] + 4;
> +		pa_psw(task)->n = 0;
> +		pa_psw(task)->x = 0;
> +		pa_psw(task)->y = 0;
> +		pa_psw(task)->z = 0;
> +		pa_psw(task)->b = 0;
> +		ptrace_disable(task);
> +		/* Don't wake up the task, but let the
> +		   parent know something happened. */
> +		si.si_code = TRAP_TRACE;
> +		si.si_addr = (void __user *) (task_regs(task)->iaoq[0] & ~3);
> +		si.si_signo = SIGTRAP;
> +		si.si_errno = 0;
> +		force_sig_info(SIGTRAP, &si, task);
> +		/* notify_parent(task, SIGCHLD); */
> +		return;
> +	}
> +
> +	/* Enable recovery counter traps.  The recovery counter
> +	 * itself will be set to zero on a task switch.  If the
> +	 * task is suspended on a syscall then the syscall return
> +	 * path will overwrite the recovery counter with a suitable
> +	 * value such that it traps once back in user space.  We
> +	 * disable interrupts in the tasks PSW here also, to avoid
> +	 * interrupts while the recovery counter is decrementing.
> +	 */
> +	pa_psw(task)->r = 1;
> +	pa_psw(task)->t = 0;
> +	pa_psw(task)->h = 0;
> +	pa_psw(task)->l = 0;
> +}
> +
> +void user_enable_block_step(struct task_struct *task)
> +{
> +	task->ptrace &= ~PT_SINGLESTEP;
> +	task->ptrace |= PT_BLOCKSTEP;
> +
> +	/* Enable taken branch trap. */
> +	pa_psw(task)->r = 0;
> +	pa_psw(task)->t = 1;
> +	pa_psw(task)->h = 0;
> +	pa_psw(task)->l = 0;
> +}
> +
> +long arch_ptrace(struct task_struct *child, long request, long addr, long data)
> +{
> +	unsigned long tmp;
> +	long ret = -EIO;
>  
> -#ifdef CONFIG_64BIT
> +	switch (request) {
> +
> +	/* Read the word at location addr in the USER area.  For ptraced
> +	   processes, the kernel saves all regs on a syscall. */
> +	case PTRACE_PEEKUSR:
> +		if ((addr & (sizeof(long)-1)) ||
> +		    (unsigned long) addr >= sizeof(struct pt_regs))
> +			break;
> +		tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
> +		ret = put_user(tmp, (unsigned long *) data);
> +		break;
> +
> +	/* Write the word at location addr in the USER area.  This will need
> +	   to change when the kernel no longer saves all regs on a syscall.
> +	   FIXME.  There is a problem at the moment in that r3-r18 are only
> +	   saved if the process is ptraced on syscall entry, and even then
> +	   those values are overwritten by actual register values on syscall
> +	   exit. */
> +	case PTRACE_POKEUSR:
> +		/* Some register values written here may be ignored in
> +		 * entry.S:syscall_restore_rfi; e.g. iaoq is written with
> +		 * r31/r31+4, and not with the values in pt_regs.
> +		 */
> +		if (addr == PT_PSW) {
> +			/* Allow writing to Nullify, Divide-step-correction,
> +			 * and carry/borrow bits.
> +			 * BEWARE, if you set N, and then single step, it won't
> +			 * stop on the nullified instruction.
> +			 */
> +			data &= USER_PSW_BITS;
> +			task_regs(child)->gr[0] &= ~USER_PSW_BITS;
> +			task_regs(child)->gr[0] |= data;
> +			ret = 0;
> +			break;
> +		}
> +
> +		if ((addr & (sizeof(long)-1)) ||
> +		    (unsigned long) addr >= sizeof(struct pt_regs))
> +			break;
> +		if ((addr >= PT_GR1 && addr <= PT_GR31) ||
> +				addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
> +				(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
> +				addr == PT_SAR) {
> +			*(unsigned long *) ((char *) task_regs(child) + addr) = data;
> +			ret = 0;
> +		}
> +		break;
> +
> +	default:
> +		ret = ptrace_request(child, request, addr, data);
> +		break;
> +	}
> +
> +	return ret;
> +}
> +
> +
> +#ifdef CONFIG_COMPAT
>  
>  /* This function is needed to translate 32 bit pt_regs offsets in to
>   * 64 bit pt_regs offsets.  For example, a 32 bit gdb under a 64 bit kernel
> @@ -61,106 +196,25 @@ static long translate_usr_offset(long offset)
>  	else
>  		return -1;
>  }
> -#endif
>  
> -/*
> - * Called by kernel/ptrace.c when detaching..
> - *
> - * Make sure single step bits etc are not set.
> - */
> -void ptrace_disable(struct task_struct *child)
> +long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
> +			compat_ulong_t addr, compat_ulong_t data)
>  {
> -	/* make sure the trap bits are not set */
> -	pa_psw(child)->r = 0;
> -	pa_psw(child)->t = 0;
> -	pa_psw(child)->h = 0;
> -	pa_psw(child)->l = 0;
> -}
> -
> -long arch_ptrace(struct task_struct *child, long request, long addr, long data)
> -{
> -	long ret;
> -#ifdef DEBUG_PTRACE
> -	long oaddr=addr, odata=data;
> -#endif
> +	compat_uint_t tmp;
> +	long ret = -EIO;
>  
>  	switch (request) {
> -	case PTRACE_PEEKTEXT: /* read word at location addr. */ 
> -	case PTRACE_PEEKDATA: {
> -#ifdef CONFIG_64BIT
> -		if (__is_compat_task(child)) {
> -			int copied;
> -			unsigned int tmp;
> -
> -			addr &= 0xffffffffL;
> -			copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
> -			ret = -EIO;
> -			if (copied != sizeof(tmp))
> -				goto out_tsk;
> -			ret = put_user(tmp,(unsigned int *) data);
> -			DBG("sys_ptrace(PEEK%s, %d, %lx, %lx) returning %ld, data %x\n",
> -				request == PTRACE_PEEKTEXT ? "TEXT" : "DATA",
> -				pid, oaddr, odata, ret, tmp);
> -		}
> -		else
> -#endif
> -			ret = generic_ptrace_peekdata(child, addr, data);
> -		goto out_tsk;
> -	}
>  
> -	/* when I and D space are separate, this will have to be fixed. */
> -	case PTRACE_POKETEXT: /* write the word at location addr. */
> -	case PTRACE_POKEDATA:
> -		ret = 0;
> -#ifdef CONFIG_64BIT
> -		if (__is_compat_task(child)) {
> -			unsigned int tmp = (unsigned int)data;
> -			DBG("sys_ptrace(POKE%s, %d, %lx, %lx)\n",
> -				request == PTRACE_POKETEXT ? "TEXT" : "DATA",
> -				pid, oaddr, odata);
> -			addr &= 0xffffffffL;
> -			if (access_process_vm(child, addr, &tmp, sizeof(tmp), 1) == sizeof(tmp))
> -				goto out_tsk;
> -		}
> -		else
> -#endif
> -		{
> -			if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
> -				goto out_tsk;
> -		}
> -		ret = -EIO;
> -		goto out_tsk;
> -
> -	/* Read the word at location addr in the USER area.  For ptraced
> -	   processes, the kernel saves all regs on a syscall. */
> -	case PTRACE_PEEKUSR: {
> -		ret = -EIO;
> -#ifdef CONFIG_64BIT
> -		if (__is_compat_task(child)) {
> -			unsigned int tmp;
> -
> -			if (addr & (sizeof(int)-1))
> -				goto out_tsk;
> -			if ((addr = translate_usr_offset(addr)) < 0)
> -				goto out_tsk;
> -
> -			tmp = *(unsigned int *) ((char *) task_regs(child) + addr);
> -			ret = put_user(tmp, (unsigned int *) data);
> -			DBG("sys_ptrace(PEEKUSR, %d, %lx, %lx) returning %ld, addr %lx, data %x\n",
> -				pid, oaddr, odata, ret, addr, tmp);
> -		}
> -		else
> -#endif
> -		{
> -			unsigned long tmp;
> +	case PTRACE_PEEKUSR:
> +		if (addr & (sizeof(compat_uint_t)-1))
> +			break;
> +		addr = translate_usr_offset(addr);
> +		if (addr < 0)
> +			break;
>  
> -			if ((addr & (sizeof(long)-1)) || (unsigned long) addr >= sizeof(struct pt_regs))
> -				goto out_tsk;
> -			tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
> -			ret = put_user(tmp, (unsigned long *) data);
> -		}
> -		goto out_tsk;
> -	}
> +		tmp = *(compat_uint_t *) ((char *) task_regs(child) + addr);
> +		ret = put_user(tmp, (compat_uint_t *) (unsigned long) data);
> +		break;
>  
>  	/* Write the word at location addr in the USER area.  This will need
>  	   to change when the kernel no longer saves all regs on a syscall.
> @@ -169,185 +223,46 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
>  	   those values are overwritten by actual register values on syscall
>  	   exit. */
>  	case PTRACE_POKEUSR:
> -		ret = -EIO;
>  		/* Some register values written here may be ignored in
>  		 * entry.S:syscall_restore_rfi; e.g. iaoq is written with
>  		 * r31/r31+4, and not with the values in pt_regs.
>  		 */
> -		 /* PT_PSW=0, so this is valid for 32 bit processes under 64
> -		 * bit kernels.
> -		 */
>  		if (addr == PT_PSW) {
> -			/* PT_PSW=0, so this is valid for 32 bit processes
> -			 * under 64 bit kernels.
> -			 *
> -			 * Allow writing to Nullify, Divide-step-correction,
> -			 * and carry/borrow bits.
> -			 * BEWARE, if you set N, and then single step, it won't
> -			 * stop on the nullified instruction.
> +			/* Since PT_PSW==0, it is valid for 32 bit processes
> +			 * under 64 bit kernels as well.
>  			 */
> -			DBG("sys_ptrace(POKEUSR, %d, %lx, %lx)\n",
> -				pid, oaddr, odata);
> -			data &= USER_PSW_BITS;
> -			task_regs(child)->gr[0] &= ~USER_PSW_BITS;
> -			task_regs(child)->gr[0] |= data;
> -			ret = 0;
> -			goto out_tsk;
> -		}
> -#ifdef CONFIG_64BIT
> -		if (__is_compat_task(child)) {
> -			if (addr & (sizeof(int)-1))
> -				goto out_tsk;
> -			if ((addr = translate_usr_offset(addr)) < 0)
> -				goto out_tsk;
> -			DBG("sys_ptrace(POKEUSR, %d, %lx, %lx) addr %lx\n",
> -				pid, oaddr, odata, addr);
> +			ret = arch_ptrace(child, request, addr, data);
> +		} else {
> +			if (addr & (sizeof(compat_uint_t)-1))
> +				break;
> +			addr = translate_usr_offset(addr);
> +			if (addr < 0)
> +				break;
>  			if (addr >= PT_FR0 && addr <= PT_FR31 + 4) {
>  				/* Special case, fp regs are 64 bits anyway */
> -				*(unsigned int *) ((char *) task_regs(child) + addr) = data;
> +				*(__u64 *) ((char *) task_regs(child) + addr) = data;
>  				ret = 0;
>  			}
>  			else if ((addr >= PT_GR1+4 && addr <= PT_GR31+4) ||
>  					addr == PT_IAOQ0+4 || addr == PT_IAOQ1+4 ||
>  					addr == PT_SAR+4) {
>  				/* Zero the top 32 bits */
> -				*(unsigned int *) ((char *) task_regs(child) + addr - 4) = 0;
> -				*(unsigned int *) ((char *) task_regs(child) + addr) = data;
> +				*(__u32 *) ((char *) task_regs(child) + addr - 4) = 0;
> +				*(__u32 *) ((char *) task_regs(child) + addr) = data;
>  				ret = 0;
>  			}
> -			goto out_tsk;
>  		}
> -		else
> -#endif
> -		{
> -			if ((addr & (sizeof(long)-1)) || (unsigned long) addr >= sizeof(struct pt_regs))
> -				goto out_tsk;
> -			if ((addr >= PT_GR1 && addr <= PT_GR31) ||
> -					addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
> -					(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
> -					addr == PT_SAR) {
> -				*(unsigned long *) ((char *) task_regs(child) + addr) = data;
> -				ret = 0;
> -			}
> -			goto out_tsk;
> -		}
> -
> -	case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
> -	case PTRACE_CONT:
> -		ret = -EIO;
> -		DBG("sys_ptrace(%s)\n",
> -			request == PTRACE_SYSCALL ? "SYSCALL" : "CONT");
> -		if (!valid_signal(data))
> -			goto out_tsk;
> -		child->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP);
> -		if (request == PTRACE_SYSCALL) {
> -			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
> -		} else {
> -			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
> -		}		
> -		child->exit_code = data;
> -		goto out_wake_notrap;
> -
> -	case PTRACE_KILL:
> -		/*
> -		 * make the child exit.  Best I can do is send it a
> -		 * sigkill.  perhaps it should be put in the status
> -		 * that it wants to exit.
> -		 */
> -		ret = 0;
> -		DBG("sys_ptrace(KILL)\n");
> -		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
> -			goto out_tsk;
> -		child->exit_code = SIGKILL;
> -		goto out_wake_notrap;
> -
> -	case PTRACE_SINGLEBLOCK:
> -		DBG("sys_ptrace(SINGLEBLOCK)\n");
> -		ret = -EIO;
> -		if (!valid_signal(data))
> -			goto out_tsk;
> -		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
> -		child->ptrace &= ~PT_SINGLESTEP;
> -		child->ptrace |= PT_BLOCKSTEP;
> -		child->exit_code = data;
> -
> -		/* Enable taken branch trap. */
> -		pa_psw(child)->r = 0;
> -		pa_psw(child)->t = 1;
> -		pa_psw(child)->h = 0;
> -		pa_psw(child)->l = 0;
> -		goto out_wake;
> -
> -	case PTRACE_SINGLESTEP:
> -		DBG("sys_ptrace(SINGLESTEP)\n");
> -		ret = -EIO;
> -		if (!valid_signal(data))
> -			goto out_tsk;
> -
> -		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
> -		child->ptrace &= ~PT_BLOCKSTEP;
> -		child->ptrace |= PT_SINGLESTEP;
> -		child->exit_code = data;
> -
> -		if (pa_psw(child)->n) {
> -			struct siginfo si;
> -
> -			/* Nullified, just crank over the queue. */
> -			task_regs(child)->iaoq[0] = task_regs(child)->iaoq[1];
> -			task_regs(child)->iasq[0] = task_regs(child)->iasq[1];
> -			task_regs(child)->iaoq[1] = task_regs(child)->iaoq[0] + 4;
> -			pa_psw(child)->n = 0;
> -			pa_psw(child)->x = 0;
> -			pa_psw(child)->y = 0;
> -			pa_psw(child)->z = 0;
> -			pa_psw(child)->b = 0;
> -			ptrace_disable(child);
> -			/* Don't wake up the child, but let the
> -			   parent know something happened. */
> -			si.si_code = TRAP_TRACE;
> -			si.si_addr = (void __user *) (task_regs(child)->iaoq[0] & ~3);
> -			si.si_signo = SIGTRAP;
> -			si.si_errno = 0;
> -			force_sig_info(SIGTRAP, &si, child);
> -			//notify_parent(child, SIGCHLD);
> -			//ret = 0;
> -			goto out_wake;
> -		}
> -
> -		/* Enable recovery counter traps.  The recovery counter
> -		 * itself will be set to zero on a task switch.  If the
> -		 * task is suspended on a syscall then the syscall return
> -		 * path will overwrite the recovery counter with a suitable
> -		 * value such that it traps once back in user space.  We
> -		 * disable interrupts in the childs PSW here also, to avoid
> -		 * interrupts while the recovery counter is decrementing.
> -		 */
> -		pa_psw(child)->r = 1;
> -		pa_psw(child)->t = 0;
> -		pa_psw(child)->h = 0;
> -		pa_psw(child)->l = 0;
> -		/* give it a chance to run. */
> -		goto out_wake;
> -
> -	case PTRACE_GETEVENTMSG:
> -                ret = put_user(child->ptrace_message, (unsigned int __user *) data);
> -		goto out_tsk;
> +		break;
>  
>  	default:
> -		ret = ptrace_request(child, request, addr, data);
> -		goto out_tsk;
> +		ret = compat_ptrace_request(child, request, addr, data);
> +		break;
>  	}
>  
> -out_wake_notrap:
> -	ptrace_disable(child);
> -out_wake:
> -	wake_up_process(child);
> -	ret = 0;
> -out_tsk:
> -	DBG("arch_ptrace(%ld, %d, %lx, %lx) returning %ld\n",
> -		request, pid, oaddr, odata, ret);
>  	return ret;
>  }
> +#endif
> +
>  
>  void syscall_trace(void)
>  {
> diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
> index 6b5ac38..e719f27 100644
> --- a/arch/parisc/kernel/syscall_table.S
> +++ b/arch/parisc/kernel/syscall_table.S
> @@ -87,7 +87,7 @@
>  	ENTRY_SAME(setuid)
>  	ENTRY_SAME(getuid)
>  	ENTRY_COMP(stime)		/* 25 */
> -	ENTRY_SAME(ptrace)
> +	ENTRY_COMP(ptrace)
>  	ENTRY_SAME(alarm)
>  	/* see stat comment */
>  	ENTRY_COMP(newfstat)
---end quoted text---
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH] compat_sys_ptrace conversions for parisc
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To: Helge Deller <deller@gmx.de>
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On Sun, Aug 24, 2008 at 08:33:25PM +0200, Helge Deller wrote:
> This patch does the compat_sys_ptrace conversion for parisc.
> In addition it does convert the parisc ptrace code to use the
> architecture-independent ptrace infrastructure instead of own coding.
> 

This sounds like it should be two seperate patches, for at least the
reason of making bisecting easier should there be a problem.
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From - Thu Nov 08 21:02:45 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] compat_sys_ptrace conversions for parisc
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To: Kyle McMartin <kyle@mcmartin.ca>,
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Hi Kyle, Hi Christoph,

Kyle McMartin wrote:
> On Sun, Aug 24, 2008 at 08:33:25PM +0200, Helge Deller wrote:
>> This patch does the compat_sys_ptrace conversion for parisc.
>> In addition it does convert the parisc ptrace code to use the
>> architecture-independent ptrace infrastructure instead of own coding.

Both of you said someting like this:

> This sounds like it should be two seperate patches, for at least the
> reason of making bisecting easier should there be a problem.

I agree that my comment suggests that splitting the patch into two parts 
could make sense to track the changes easier, but if you look into the 
original code you'll see, that I would need to duplicate all of the 
arch_ptrace code and then make the copied part 64bit-ready. Then the 
second patch would delete all of this again and replacing it with the 
generic function calls.
IMHO that's a lot of coding and changes without any need. You'll first 
need to understand coding in my first patch which is then deleted 
afterwards with the second patch again. And if you look at the final 
ptrace.c file after applying my patch which I posted here, you'll see 
that arch_ptrace is now really small and simple to understand.

That said, I'm not very motivated to split my patch.

Helge
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From - Thu Nov 08 21:02:45 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [PATCH] drop superfluous .align 16
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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On Mon, Aug 25, 2008 at 02:31:40PM +0200, Helge Deller wrote:
> James Bottomley wrote:
>> On Sun, 2008-08-24 at 20:51 +0200, Helge Deller wrote:
>>> This .align 16 is misplaced and should be in front of the 
>>> ENTRY(lws_lock_start).
>>> Works because of pure luck since we have a .align PAGE_SIZE before it 
>>> instead.
>>>
>>> Signed-off-by: Helge Deller <deller@gmx.de>
>>>
>>> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
>>> index 69b6eeb..c6ff81f 100644
>>> --- a/arch/parisc/kernel/syscall.S
>>> +++ b/arch/parisc/kernel/syscall.S
>>> @@ -640,7 +640,6 @@ END(sys_call_table64)
>>>  	.align	PAGE_SIZE
>>>  ENTRY(lws_lock_start)
>>>  	/* lws locks */
>>> -	.align 16
>>>  	.rept 16
>>>  	/* Keep locks aligned at 16-bytes */
>>>  	.word 1
>> I think I'd really rather keep this.  It may be technically superfluous
>> because of the .align PAGE_SIZE above it, but that belongs to the
>> syscall table.  
>
>> If anyone ever moved this section in head.S, the align
>> 16 ensures nothing goes wrong.
>
> Hi James,
>
> If the block is moved, then that's exactly what this .align does not 
> ensure.
> We had this discussion already here on the list. Please read the full 
> thread: http://marc.info/?t=121554765000005&r=1&w=2

Helge,
Thanks for tracking and resubmitting this...Carlos already ACK'd and I think
it would be good if kyle added it to his patch queue.

But I liked two other things proposed in this thread.
1) jejb's preference to document the alignement requirement 
2) jda's proposal for ENTRY_ALIGN() (which accomplishes (1))

So I've hacked your patch to include those two things.

I've only build-tested this for 64-bit builds.

thanks,
grant

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>


diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 69b6eeb..faf8b37 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -638,11 +638,10 @@ END(sys_call_table64)
 	*/
 	.section .data
 	.align	PAGE_SIZE
-ENTRY(lws_lock_start)
+
+ENTRY_ALIGN(lws_lock_start,16)
 	/* lws locks */
-	.align 16
 	.rept 16
-	/* Keep locks aligned at 16-bytes */
 	.word 1
 	.word 0 
 	.word 0
diff --git a/include/asm-parisc/linkage.h b/include/asm-parisc/linkage.h
index 0b19a72..2c6cbe2 100644
--- a/include/asm-parisc/linkage.h
+++ b/include/asm-parisc/linkage.h
@@ -17,6 +17,11 @@
 	ALIGN !\
 name:
 
+#define ENTRY_ALIGN(name,alignval) \
+	.export name !\
+	.align alignval !\
+name:
+
 #ifdef CONFIG_64BIT
 #define ENDPROC(name) \
 	END(name)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] drop superfluous .align 16
Date: Tue, 26 Aug 2008 08:42:10 -0400
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On Tue, Aug 26, 2008 at 12:26 AM, Grant Grundler
<grundler@parisc-linux.org> wrote:
> Thanks for tracking and resubmitting this...Carlos already ACK'd and I think
> it would be good if kyle added it to his patch queue.
>
> But I liked two other things proposed in this thread.
> 1) jejb's preference to document the alignement requirement
> 2) jda's proposal for ENTRY_ALIGN() (which accomplishes (1))
>
> So I've hacked your patch to include those two things.
>
> I've only build-tested this for 64-bit builds.
>
> thanks,
> grant
>
> Signed-off-by: Helge Deller <deller@gmx.de>
> Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>

I agree with both Helge's original patch and this one. Thanks for
making an ENTRY_ALIGN macro. The macro keeps the symbol and alignment
together. Well done.

Cheers,
Carlos.
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From - Thu Nov 08 21:02:45 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] drop superfluous .align 16
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On Tue, 2008-08-26 at 08:42 -0400, Carlos O'Donell wrote:
> On Tue, Aug 26, 2008 at 12:26 AM, Grant Grundler
> <grundler@parisc-linux.org> wrote:
> > Thanks for tracking and resubmitting this...Carlos already ACK'd and I think
> > it would be good if kyle added it to his patch queue.
> >
> > But I liked two other things proposed in this thread.
> > 1) jejb's preference to document the alignement requirement
> > 2) jda's proposal for ENTRY_ALIGN() (which accomplishes (1))
> >
> > So I've hacked your patch to include those two things.
> >
> > I've only build-tested this for 64-bit builds.
> >
> > thanks,
> > grant
> >
> > Signed-off-by: Helge Deller <deller@gmx.de>
> > Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Can we get this right, please ... we'll get into awful penguin trouble
if he catches us misusing the DCO:

> Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>

That's not signed off by you.  You only get to add a signed-off-by if
the patch physically passes through your hands.  That means that Grant's
above is correct because he modified the patch and resent it, but yours
isn't because you did nothing with it (and you didn't pass it on).

You can add Acked-by: if you like (that usually means I'm the person in
charge of the relevant code and I approved sending it through someone
else's tree) or Reviewed-by: (I actually looked through the patch and it
seems to be fine to me).

James


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From - Thu Nov 08 21:02:45 2018
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From: Takashi Iwai <tiwai@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.mips.general
Subject: Re: [PATCH] mips: Add dma_mmap_coherent()
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At Sat, 23 Aug 2008 19:39:58 +0000,
Joel Soete wrote:
> 
> Hello Takashi,
> 
> Takashi Iwai wrote:
> > At Fri, 22 Aug 2008 13:04:36 +0100,
> > Joel Soete wrote:
> >> Hello Takashi et al.,
> > ...
> >> I build and boot successfully kernel 32bit including your patch on 2 systems
> >> (a b2k using sba and a d380 using ccio).
> > 
> > Thanks for testing!
> > 
> welcome ;-)
> 
> >> I just noticed that the above code is ~ the same; otoh there is also a
> >> iommu-helpers.h containing also common code to those 2 drivers. So may be for
> >> easiest maintenance, could you merge and move this code in this 'helper' as
> >> follow:
> >> --- ./drivers/parisc/iommu-helpers.h.Orig	2008-08-01 12:57:22.000000000 +0000
> >> +++ ./drivers/parisc/iommu-helpers.h	2008-08-22 08:07:26.000000000 +0000
> > 
> > That sounds like a good idea.
> > 
> > One concern is to define a non-inline function in *.h.  But,
> 
> Yes (I thought too but didn't find any other good reason then avoiding useless duplicate code)
> 
> > iommu-helper.h is included only by these two drivers, so there is no
> > problem as now, although a comment would be more helpful.
> > 
> Yes I hope it will be enough for this stuff to be accepted ;-)

I, too :)

Now updated my git tree:
    http://git.kernel.org/?p=linux/kernel/git/tiwai/sound-2.6.git;a=shortlog;h=topic/dma-fix
I'll post each patch again if preferred.


Do you guys see any pending issues?  I'd love to merge these patches
into the upstream for 2.6.28.

To get things clear -- I don't intend to fix the problem of mmap on
every non-coherent platform perfectly (yet).  Instead, this patch
series is intended to fix the current behavior, at least, for the
sound drivers not to crash unconditionally.  It provides a (minimal)
way to mmap the pages taken via dma_alloc_coherent().


Thanks,

Takashi
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From - Thu Nov 08 21:02:45 2018
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Subject: Re: [PATCH] drop superfluous .align 16
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On Tue, Aug 26, 2008 at 10:10 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Tue, 2008-08-26 at 08:42 -0400, Carlos O'Donell wrote:
>> On Tue, Aug 26, 2008 at 12:26 AM, Grant Grundler
>> <grundler@parisc-linux.org> wrote:
>> > Thanks for tracking and resubmitting this...Carlos already ACK'd and I think
>> > it would be good if kyle added it to his patch queue.
>> >
>> > But I liked two other things proposed in this thread.
>> > 1) jejb's preference to document the alignement requirement
>> > 2) jda's proposal for ENTRY_ALIGN() (which accomplishes (1))
>> >
>> > So I've hacked your patch to include those two things.
>> >
>> > I've only build-tested this for 64-bit builds.
>> >
>> > thanks,
>> > grant
>> >
>> > Signed-off-by: Helge Deller <deller@gmx.de>
>> > Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
>
> Can we get this right, please ... we'll get into awful penguin trouble
> if he catches us misusing the DCO:
>
>> Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
>
> That's not signed off by you.  You only get to add a signed-off-by if
> the patch physically passes through your hands.  That means that Grant's
> above is correct because he modified the patch and resent it, but yours
> isn't because you did nothing with it (and you didn't pass it on).
>
> You can add Acked-by: if you like (that usually means I'm the person in
> charge of the relevant code and I approved sending it through someone
> else's tree) or Reviewed-by: (I actually looked through the patch and it
> seems to be fine to me).

Quite right. Sorry for the cut-n-paste.

Since I wrote the code, I consider myself the maintainer.

Acked-by: Carlos O'Donell <carlos@systemhalted.org>

Cheers,
Carlos.
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From: Christoph Hellwig <hch@lst.de>
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Subject: Re: [PATCH] compat_sys_ptrace conversions for parisc
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On Mon, Aug 25, 2008 at 07:49:35PM +0200, Helge Deller wrote:
> I agree that my comment suggests that splitting the patch into two parts 
> could make sense to track the changes easier, but if you look into the 
> original code you'll see, that I would need to duplicate all of the 
> arch_ptrace code and then make the copied part 64bit-ready. Then the 
> second patch would delete all of this again and replacing it with the 
> generic function calls.
> IMHO that's a lot of coding and changes without any need. You'll first 
> need to understand coding in my first patch which is then deleted 
> afterwards with the second patch again. And if you look at the final 
> ptrace.c file after applying my patch which I posted here, you'll see 
> that arch_ptrace is now really small and simple to understand.
> 
> That said, I'm not very motivated to split my patch.

Oh, parisc actually uses sys_ptrace as the 32bit entry point.  Yes, I
see your point and take back the suggestion.

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From - Thu Nov 08 21:02:46 2018
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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: __kernel_suseconds_t is int on PA-RISC (and SPARC64)?
Date: Tue, 26 Aug 2008 22:11:25 +0200 (CEST)
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Apparently __kernel_suseconds_t is `int' on PA-RISC (and on SPARC64),
while it's `long' on all other platforms.

Is there a specific reason for that?

This causes compiler warnings in the HP SDC Real Time Clock driver,
which is shared between PA-RISC and m68k:

drivers/input/misc/hp_sdc_rtc.c:461: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
drivers/input/misc/hp_sdc_rtc.c:461: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
drivers/input/misc/hp_sdc_rtc.c:468: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
drivers/input/misc/hp_sdc_rtc.c:468: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
drivers/input/misc/hp_sdc_rtc.c:475: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
drivers/input/misc/hp_sdc_rtc.c:475: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
drivers/input/misc/hp_sdc_rtc.c:482: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
drivers/input/misc/hp_sdc_rtc.c:482: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
drivers/input/misc/hp_sdc_rtc.c:489: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
drivers/input/misc/hp_sdc_rtc.c:489: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: __kernel_suseconds_t is int on PA-RISC (and SPARC64)?
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Geert Uytterhoeven wrote:
> Apparently __kernel_suseconds_t is `int' on PA-RISC (and on SPARC64),
> while it's `long' on all other platforms.
> 
> Is there a specific reason for that?

I don't know for sure, but arch/parisc/kernel/syscall_table.S states:
/* even though manpage says struct timeval contains longs, ours has
  * time_t and suseconds_t -- both of which are safe wide/narrow */
    ENTRY_COMP(setitimer)

So it was probably chosen to be int so that it can be easily used in 32- 
and 64bit kernels (or compat code).

Helge


> This causes compiler warnings in the HP SDC Real Time Clock driver,
> which is shared between PA-RISC and m68k:
> 
> drivers/input/misc/hp_sdc_rtc.c:461: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
> drivers/input/misc/hp_sdc_rtc.c:461: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
> drivers/input/misc/hp_sdc_rtc.c:468: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
> drivers/input/misc/hp_sdc_rtc.c:468: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
> drivers/input/misc/hp_sdc_rtc.c:475: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
> drivers/input/misc/hp_sdc_rtc.c:475: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
> drivers/input/misc/hp_sdc_rtc.c:482: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
> drivers/input/misc/hp_sdc_rtc.c:482: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
> drivers/input/misc/hp_sdc_rtc.c:489: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
> drivers/input/misc/hp_sdc_rtc.c:489: warning: format '%02d' expects type 'int', but argument 4 has type 'long int'
> 
> Gr{oetje,eeting}s,
> 
> 						Geert
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From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 26 Aug 2008 22:11:25 +0200 (CEST)

> Apparently __kernel_suseconds_t is `int' on PA-RISC (and on SPARC64),
> while it's `long' on all other platforms.
> 
> Is there a specific reason for that?

An existing API probably decided it for us :-)

Anyways, no use in wondering why, it can't be changed at this point.
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On Tue, Aug 26, 2008 at 05:25:24PM +0200, Takashi Iwai wrote:
...
> Now updated my git tree:
>     http://git.kernel.org/?p=linux/kernel/git/tiwai/sound-2.6.git;a=shortlog;h=topic/dma-fix
> I'll post each patch again if preferred.

+#ifdef CONFIG_SND_COHERENT_DMA
 #define SNDRV_DMA_TYPE_DEV_SG          3       /* generic device SG-buffer */
+#else
+#define SNDRV_DMA_TYPE_DEV_SG  SNDRV_DMA_TYPE_DEV /* no SG-buf support */
+#endif

Hi Takashi,
I had to look at a previous patch to figure out CONFIG_SND_COHERENT_DMA
is an arch dependent flag:

+config SND_COHERENT_DMA
+       def_bool y
+       depends on !PPC32 || !NOT_COHERENT_CACHE
+       depends on !ARM
+       depends on !MIPS
+       depends on !PARISC

In general, I don't expect this to be a compile time option.
I'm wondering if extending the DMA API to provide an
interface for user space to also be DMA coherent.
Maybe something to talk about at Linux Plumbers Conf
or kernel summit...

> Do you guys see any pending issues?  I'd love to merge these patches
> into the upstream for 2.6.28.

SPARC/SPARC64 usually falls into the same category as parisc/mips.

> 
> To get things clear -- I don't intend to fix the problem of mmap on
> every non-coherent platform perfectly (yet).  Instead, this patch
> series is intended to fix the current behavior, at least, for the
> sound drivers not to crash unconditionally.  It provides a (minimal)
> way to mmap the pages taken via dma_alloc_coherent().

*nod* that's reasonable.

thanks,
grant

> 
> 
> Thanks,
> 
> Takashi
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From - Thu Nov 08 21:02:46 2018
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From: Roland McGrath <roland@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] compat_sys_ptrace conversions for parisc
Date: Tue, 26 Aug 2008 14:09:58 -0700 (PDT)
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Cc: Helge Deller <deller@gmx.de>,
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To: Christoph Hellwig <hch@lst.de>
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> This should probably get a little review from Rland, I've added him to
> the Cc list.  Although I suspect splitting this into at least two
> patches for compat_sys_ptrace vs the rest might make sense.

For the machines where I've done this work, I've certainly been well-served
by breaking it into many smaller incremental patches.  That would make the
meat of each patch far easier to read than this one big patch is.

It seems odd to have user_disable_single_step call ptrace_disable rather
than vice versa.  Otherwise, off hand I don't see anything particularly
suspect in the patch, but I'll admit I didn't look too close because the
one big diff is a pain to read.


Thanks,
Roland
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From - Thu Nov 08 21:02:46 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] Change cpu_data[] and cpu_devices[] from array sized
	by NR_CPUS to per_cpu variables
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On Sun, Aug 24, 2008 at 11:24:21PM +0200, Helge Deller wrote:
> Updated patch attached, which fixes some build problems and section 
> mismatches.
> Boot-tested on a UP 32bit machine with CONFIG_SMP=y.

Fixed this build failure (64-bit):
  CC      arch/parisc/kernel/perf.o
arch/parisc/kernel/perf.c: In function 'perf_init':
arch/parisc/kernel/perf.c:544: error: 'cpu_data' undeclared (first use in this function)
arch/parisc/kernel/perf.c:544: error: (Each undeclared identifier is reported only once
arch/parisc/kernel/perf.c:544: error: for each function it appears in.)
make[1]: *** [arch/parisc/kernel/perf.o] Error 1

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index f696f57..c661db7 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -55,6 +55,7 @@
 #include <asm/processor.h>
 #include <asm/runway.h>
 #include <asm/io.h>		/* for __raw_read() */
+#include <asm/percpu.h>
 
 #include "perf_images.h"
 
@@ -541,9 +542,9 @@ static int __init perf_init(void)
 	spin_lock_init(&perf_lock);
 
 	/* TODO: this only lets us access the first cpu.. what to do for SMP? */
-	cpu_device = cpu_data[0].dev;
+	cpu_device = per_cpu(cpu_data, 0).dev;
 	printk("Performance monitoring counters enabled for %s\n",
-		cpu_data[0].dev->name);
+		cpu_device->name);
 
 	return 0;
 }
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From - Thu Nov 08 21:02:46 2018
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From: Takashi Iwai <tiwai@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.mips.general
Subject: Re: [PATCH] mips: Add dma_mmap_coherent()
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To: Grant Grundler <grundler@parisc-linux.org>
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At Tue, 26 Aug 2008 15:01:18 -0600,
Grant Grundler wrote:
> 
> On Tue, Aug 26, 2008 at 05:25:24PM +0200, Takashi Iwai wrote:
> ...
> > Now updated my git tree:
> >     http://git.kernel.org/?p=linux/kernel/git/tiwai/sound-2.6.git;a=shortlog;h=topic/dma-fix
> > I'll post each patch again if preferred.
> 
> +#ifdef CONFIG_SND_COHERENT_DMA
>  #define SNDRV_DMA_TYPE_DEV_SG          3       /* generic device SG-buffer */
> +#else
> +#define SNDRV_DMA_TYPE_DEV_SG  SNDRV_DMA_TYPE_DEV /* no SG-buf support */
> +#endif
> 
> Hi Takashi,
> I had to look at a previous patch to figure out CONFIG_SND_COHERENT_DMA
> is an arch dependent flag:
> 
> +config SND_COHERENT_DMA
> +       def_bool y
> +       depends on !PPC32 || !NOT_COHERENT_CACHE
> +       depends on !ARM
> +       depends on !MIPS
> +       depends on !PARISC
> 
> In general, I don't expect this to be a compile time option.

Right now it has to be a compile-time option because
- dma_mmap_coherent() isn't implemented in every architecture (thus
  fails to build), and 
- pages allocated via dma_mmap_coherent() aren't always suitable for
  SG-mapping.

> I'm wondering if extending the DMA API to provide an
> interface for user space to also be DMA coherent.

Yes, this would be really nice.

> Maybe something to talk about at Linux Plumbers Conf
> or kernel summit...

Agreed.

> > Do you guys see any pending issues?  I'd love to merge these patches
> > into the upstream for 2.6.28.
> 
> SPARC/SPARC64 usually falls into the same category as parisc/mips.

Right.  I guess SH*, too.
But, a missing piece doesn't mean to stop pushing this :)
We can implement on other archs occasionally based on the existing
works.


thanks,

Takashi
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On Wed, Aug 27, 2008 at 07:42:06AM +0200, Takashi Iwai wrote:

> Right now it has to be a compile-time option because
> - dma_mmap_coherent() isn't implemented in every architecture (thus
>   fails to build), and 
> - pages allocated via dma_mmap_coherent() aren't always suitable for
>   SG-mapping.

I suggest you take this issue to linux-arch or linux-kernel.  There will
be some more people who will have input on this.

  Ralf
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Subject: [PATCH 03/59] CRED: Wrap task credential accesses in the PA-RISC arch
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/685>

Wrap access to task credentials so that they can be separated more easily from
the task_struct during the introduction of COW creds.

Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

Change some task->e?[ug]id to task_e?[ug]id().  In some places it makes more
sense to use RCU directly rather than a convenient wrapper; these will be
addressed by later patches.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
---

 arch/parisc/kernel/signal.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)


diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 06213d1..f825442 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -182,7 +182,7 @@ give_sigsegv:
 	si.si_errno = 0;
 	si.si_code = SI_KERNEL;
 	si.si_pid = task_pid_vnr(current);
-	si.si_uid = current->uid;
+	si.si_uid = current_uid();
 	si.si_addr = &frame->uc;
 	force_sig_info(SIGSEGV, &si, current);
 	return;

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From - Thu Nov 08 21:02:46 2018
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Subject: Re: [PATCH] mips: Add dma_mmap_coherent()
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To: Takashi Iwai <tiwai@suse.de>
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On Wed, 2008-08-27 at 07:42 +0200, Takashi Iwai wrote:
> At Tue, 26 Aug 2008 15:01:18 -0600,
> Grant Grundler wrote:
> > 
> > On Tue, Aug 26, 2008 at 05:25:24PM +0200, Takashi Iwai wrote:
> > ...
> > > Now updated my git tree:
> > >     http://git.kernel.org/?p=linux/kernel/git/tiwai/sound-2.6.git;a=shortlog;h=topic/dma-fix
> > > I'll post each patch again if preferred.
> > 
> > +#ifdef CONFIG_SND_COHERENT_DMA
> >  #define SNDRV_DMA_TYPE_DEV_SG          3       /* generic device SG-buffer */
> > +#else
> > +#define SNDRV_DMA_TYPE_DEV_SG  SNDRV_DMA_TYPE_DEV /* no SG-buf support */
> > +#endif
> > 
> > Hi Takashi,
> > I had to look at a previous patch to figure out CONFIG_SND_COHERENT_DMA
> > is an arch dependent flag:
> > 
> > +config SND_COHERENT_DMA
> > +       def_bool y
> > +       depends on !PPC32 || !NOT_COHERENT_CACHE
> > +       depends on !ARM
> > +       depends on !MIPS
> > +       depends on !PARISC
> > 
> > In general, I don't expect this to be a compile time option.
> 
> Right now it has to be a compile-time option because
> - dma_mmap_coherent() isn't implemented in every architecture (thus
>   fails to build), and 
> - pages allocated via dma_mmap_coherent() aren't always suitable for
>   SG-mapping.

This is trivially fixable by the usual methods, so, as Grant says, we
should employ them rather than non-standard ways of doing this

Basically, you're asking to extend the DMA API, so this should be taken
to linux-arch.  That way, it might also give visibility to the graphics
people and we can negotiate over a unified API.

James





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Subject: Re: [PATCH] Change cpu_data[] and cpu_devices[] from array sized
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Grant Grundler wrote:
> On Sun, Aug 24, 2008 at 11:24:21PM +0200, Helge Deller wrote:
>> Updated patch attached, which fixes some build problems and section 
>> mismatches.
>> Boot-tested on a UP 32bit machine with CONFIG_SMP=y.
> 
> Fixed this build failure (64-bit):
>   CC      arch/parisc/kernel/perf.o
> arch/parisc/kernel/perf.c: In function 'perf_init':
> arch/parisc/kernel/perf.c:544: error: 'cpu_data' undeclared (first use in this function)
> arch/parisc/kernel/perf.c:544: error: (Each undeclared identifier is reported only once
> arch/parisc/kernel/perf.c:544: error: for each function it appears in.)
> make[1]: *** [arch/parisc/kernel/perf.o] Error 1
> 
> Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Thanks!

Acked-by: Helge Deller <deller@gmx.de>


> diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
> index f696f57..c661db7 100644
> --- a/arch/parisc/kernel/perf.c
> +++ b/arch/parisc/kernel/perf.c
> @@ -55,6 +55,7 @@
>  #include <asm/processor.h>
>  #include <asm/runway.h>
>  #include <asm/io.h>		/* for __raw_read() */
> +#include <asm/percpu.h>
>  
>  #include "perf_images.h"
>  
> @@ -541,9 +542,9 @@ static int __init perf_init(void)
>  	spin_lock_init(&perf_lock);
>  
>  	/* TODO: this only lets us access the first cpu.. what to do for SMP? */
> -	cpu_device = cpu_data[0].dev;
> +	cpu_device = per_cpu(cpu_data, 0).dev;
>  	printk("Performance monitoring counters enabled for %s\n",
> -		cpu_data[0].dev->name);
> +		cpu_device->name);
>  
>  	return 0;
>  }
--
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Subject: Re: [PATCH 03/59] CRED: Wrap task credential accesses in the
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To: David Howells <dhowells@redhat.com>
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On Wed, Aug 27, 2008 at 02:45:57PM +0100, David Howells wrote:
> Wrap access to task credentials so that they can be separated more easily from
> the task_struct during the introduction of COW creds.
> 
> Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().
> 
> Change some task->e?[ug]id to task_e?[ug]id().  In some places it makes more
> sense to use RCU directly rather than a convenient wrapper; these will be
> addressed by later patches.
> 

OK.

Feel free to push this with the rest of them, if you haven't already,
with my blessing.

r, Kyle
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Hi Kyle,

A parisc defconfig build of linux-next (next-20080827) fails like this:

sound/parisc/harmony.c:872: error: 'reutrn' undeclared (first use in this f=
unction)

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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From - Thu Nov 08 21:02:46 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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On Thu, Aug 28, 2008 at 11:58:20AM +1000, Stephen Rothwell wrote:
> Hi Kyle,
> 
> A parisc defconfig build of linux-next (next-20080827) fails like this:
> 
> sound/parisc/harmony.c:872: error: 'reutrn' undeclared (first use in this function)
> 

You're looking the wrong way... we didn't touch this code...

r, Kyle
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[Adding CCs]

On Saturday, 30 of August 2008, Helge Deller wrote:
> commit da574983de9f9283ba35662c8723627096e160de
> Author: Al Viro <viro@zeniv.linux.org.uk>
> [PATCH] fix hpux_getdents() - Missing checks for -EFAULT, broken handling of
> overflow.
> 
> introduced a build breakage:
>   CC      arch/parisc/hpux/fs.o
> arch/parisc/hpux/fs.c: In function `filldir':
> arch/parisc/hpux/fs.c:107: error: `buffer' undeclared (first use in this
> function)
> make[1]: *** [arch/parisc/hpux/fs.o] Error 1
> 
> 
> This patch fixes it.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> 
> diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
> index 69ff671..12c04c5 100644
> --- a/arch/parisc/hpux/fs.c
> +++ b/arch/parisc/hpux/fs.c
> @@ -104,7 +104,7 @@ static int filldir(void * __buf, const char * name, int
> namlen, loff_t offset,
>         buf->count -= reclen;
>         return 0;
>  Efault:
> -       buffer->error = -EFAULT;
> +       buf->error = -EFAULT;
>         return -EFAULT;
>  }
>  
> 
> 
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Hi Kyle,

On Thu, 28 Aug 2008 10:33:19 -0400 Kyle McMartin <kyle@mcmartin.ca> wrote:
>
> On Thu, Aug 28, 2008 at 11:58:20AM +1000, Stephen Rothwell wrote:
> > Hi Kyle,
> >=20
> > A parisc defconfig build of linux-next (next-20080827) fails like this:
> >=20
> > sound/parisc/harmony.c:872: error: 'reutrn' undeclared (first use in th=
is function)
>=20
> You're looking the wrong way... we didn't touch this code...

Indeed.

Hi Takashi,

The above was introduced by commit
59112f679b3ace91b5b74b965c4f918c5aa095fe ("ALSA: Kill snd_assert() in
other places") in the sound tree.

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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A parisc allmodconfig build produces this:

arch/parisc/hpux/fs.c:107: error: 'buffer' undeclared (first use in this function)

Introduced by commit da574983de9f9283ba35662c8723627096e160de ("[PATCH]
fix hpux_getdents()").

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
index 69ff671..12c04c5 100644
--- a/arch/parisc/hpux/fs.c
+++ b/arch/parisc/hpux/fs.c
@@ -104,7 +104,7 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
 	buf->count -= reclen;
 	return 0;
 Efault:
-	buffer->error = -EFAULT;
+	buf->error = -EFAULT;
 	return -EFAULT;
 }
 

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
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At Tue, 2 Sep 2008 03:32:42 +1000,
Stephen Rothwell wrote:
> 
> Hi Kyle,
> 
> On Thu, 28 Aug 2008 10:33:19 -0400 Kyle McMartin <kyle@mcmartin.ca> wrote:
> >
> > On Thu, Aug 28, 2008 at 11:58:20AM +1000, Stephen Rothwell wrote:
> > > Hi Kyle,
> > > 
> > > A parisc defconfig build of linux-next (next-20080827) fails like this:
> > > 
> > > sound/parisc/harmony.c:872: error: 'reutrn' undeclared (first use in this function)
> > 
> > You're looking the wrong way... we didn't touch this code...
> 
> Indeed.
> 
> Hi Takashi,
> 
> The above was introduced by commit
> 59112f679b3ace91b5b74b965c4f918c5aa095fe ("ALSA: Kill snd_assert() in
> other places") in the sound tree.

Oops, fixed now.  Thanks!


Takashi

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Subject: Re: [PATCH] fix typo in arch/parisc/hpux/fs.c
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Stephen Rothwell wrote:
> A parisc allmodconfig build produces this:
> 
> arch/parisc/hpux/fs.c:107: error: 'buffer' undeclared (first use in this function)
> 
> Introduced by commit da574983de9f9283ba35662c8723627096e160de ("[PATCH]
> fix hpux_getdents()").
> 
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Thanks Stephen.
The same bug/patch is already tracked in bugzilla 11461:

Rafael J. Wysocki wrote:
 > This message has been generated automatically as a part of a report
 > of recent regressions.
 >
 > The following bug entry is on the current list of known regressions
 > from 2.6.26.  Please verify if it still should be listed and let me know
 > (either way).
 >
 >
 > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=11461
 > Subject		: build breakage
 > Submitter	: Helge Deller <deller@gmx.de>
 > Date		: 2008-08-30 10:34 (1 days old)
 > References	: http://marc.info/?l=linux-kernel&m=122009254918593&w=4
 > Handled-By	: Helge Deller <deller@gmx.de>
 > Patch		: http://marc.info/?l=linux-kernel&m=122009254918593&w=4
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From - Thu Nov 08 21:02:47 2018
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It looks like the old dhcp server was converted to dhcp3 without pulling
across all of the dhcp entries.  I've added the gig-e network and and
entry for ion (which I needed to get it to come up).  However, there are
evidently still machines out there trying and failing to get IP
addresses:

Sep  3 10:24:29 gsyprf11 dhcpd: DHCPDISCOVER from 00:17:08:c8:75:40 via eth11: network 192.168.1/24: no free leases
Sep  3 10:36:29 gsyprf11 dhcpd: DHCPDISCOVER from 00:04:ea:b1:cf:80 via eth10: network 192.168.0/24: no free leases

So whoever's systems these are will need to add an entry for them.

James


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From - Thu Nov 08 21:02:47 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:697 gmane.linux.kernel.cross-arch:2082 gmane.linux.ports.ia64:19392 gmane.linux.ports.ppc64.devel:46480
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It was introduced by 

commit 0fe1ef24f7bd0020f29ffe287dfdb9ead33ca0b2
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sun Jul 6 16:43:12 2008 -0700

    vsprintf: add support for '%pS' and '%pF' pointer formats


However, the current way its coded doesn't work on parisc64.  For two
reasons:  1) parisc isn't in the #ifdef and 2) parisc has a different
format for function descriptors

Make dereference_function_descriptor() more accommodating by allowing
architecture overrides.  I put the three overrides (for parisc64, ppc64
and ia64) in arch/kernel/module.c because that's where the kernel
internal linker which knows how to deal with function descriptors sits.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 arch/ia64/kernel/module.c       |    9 +++++++++
 arch/parisc/kernel/module.c     |   13 +++++++++++++
 arch/powerpc/kernel/module_64.c |    9 +++++++++
 include/linux/kernel.h          |    3 +++
 lib/vsprintf.c                  |   12 ++++++------
 5 files changed, 40 insertions(+), 6 deletions(-)

diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index 29aad34..596a862 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -31,6 +31,7 @@
 #include <linux/elf.h>
 #include <linux/moduleloader.h>
 #include <linux/string.h>
+#include <linux/uaccess.h>
 #include <linux/vmalloc.h>
 
 #include <asm/patch.h>
@@ -941,3 +942,11 @@ module_arch_cleanup (struct module *mod)
 	if (mod->arch.core_unw_table)
 		unw_remove_unwind_table(mod->arch.core_unw_table);
 }
+
+void *dereference_function_descriptor(void *ptr)
+{
+	void *p = NULL;
+	if (!probe_kernel_address(ptr, p))
+		ptr = p;
+	return p;
+}
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index fdacdd4..4ad80a5 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -47,6 +47,7 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/bug.h>
+#include <linux/uaccess.h>
 
 #include <asm/unwind.h>
 
@@ -860,3 +861,15 @@ void module_arch_cleanup(struct module *mod)
 	deregister_unwind_table(mod);
 	module_bug_cleanup(mod);
 }
+
+#ifdef CONFIG_64BIT
+void *dereference_function_descriptor(void *ptr)
+{
+	Elf64_Fdesc *desc = ptr;
+	void *p = NULL;
+
+	if (!probe_kernel_address(&desc->addr, p))
+		ptr = p;
+	return p;
+}
+#endif
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index ee6a298..60e9749 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -21,6 +21,7 @@
 #include <linux/err.h>
 #include <linux/vmalloc.h>
 #include <linux/bug.h>
+#include <linux/uaccess.h>
 #include <asm/module.h>
 #include <asm/uaccess.h>
 #include <asm/firmware.h>
@@ -451,3 +452,11 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 
 	return 0;
 }
+
+void *dereference_function_descriptor(void *ptr)
+{
+	void *p = NULL;
+	if (!probe_kernel_address(ptr, p))
+		ptr = p;
+	return p;
+}
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 2651f80..8ff19b3 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -189,6 +189,9 @@ extern int __kernel_text_address(unsigned long addr);
 extern int kernel_text_address(unsigned long addr);
 struct pid;
 extern struct pid *session_of_pgrp(struct pid *pgrp);
+/* function descriptor handling (if any) */
+extern void *dereference_function_descriptor(void *ptr);
+
 
 #ifdef CONFIG_PRINTK
 asmlinkage int vprintk(const char *fmt, va_list args)
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index d8d1d11..cffcd95 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -513,13 +513,13 @@ static char *string(char *buf, char *end, char *s, int field_width, int precisio
 	return buf;
 }
 
-static inline void *dereference_function_descriptor(void *ptr)
+/*
+ * Some architectures need special handling for pointers
+ * to functions, which are done via function descriptors
+ * Do a non weak override of this function for them
+ */
+void __weak *dereference_function_descriptor(void *ptr)
 {
-#if defined(CONFIG_IA64) || defined(CONFIG_PPC64)
-	void *p;
-	if (!probe_kernel_address(ptr, p))
-		ptr = p;
-#endif
 	return ptr;
 }
 
-- 
1.5.6.5



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On Wed, 3 Sep 2008, James Bottomley wrote:
> 
> Make dereference_function_descriptor() more accommodating by allowing
> architecture overrides.

Don't do it like this.

We don't want some stupid useless weak function that is empty on all sane 
platforms.

Just do

	.. declare or create an inline 'parisc_function_descriptor()' ..

	#define dereference_function_descriptor(p) parisc_function_descriptor(p)

in some arch header file. And then use

	#ifndef dereference_function_descriptor
	#define dereference_function_descriptor(p) (p)
	#endif

in the generic code, so that sane architectures don't need to do anything 
at all.

		Linus
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On Wed, 2008-09-03 at 14:22 -0700, Linus Torvalds wrote:
> 
> On Wed, 3 Sep 2008, James Bottomley wrote:
> > 
> > Make dereference_function_descriptor() more accommodating by allowing
> > architecture overrides.
> 
> Don't do it like this.
> 
> We don't want some stupid useless weak function that is empty on all sane 
> platforms.
> 
> Just do
> 
> 	.. declare or create an inline 'parisc_function_descriptor()' ..
> 
> 	#define dereference_function_descriptor(p) parisc_function_descriptor(p)
> 
> in some arch header file. And then use
> 
> 	#ifndef dereference_function_descriptor
> 	#define dereference_function_descriptor(p) (p)
> 	#endif
> 
> in the generic code, so that sane architectures don't need to do anything 
> at all.

Is that finally final?  because the last time I tried to do the above
for a voyager override I was told weak functions were the preferred
method ...

Anyway, it's easy to do (if a slightly larger diff) ... I have to move
the prototype from include/kernel.h to include/module.h because I need
an assured asm/xxx include before it to get the override.

It was also pointed out that I should be returning the passed in ptr,
not NULL on failure and that the return should be ptr not p.

James

---

The current way its coded doesn't work on parisc64.  For two
reasons:  1) parisc isn't in the #ifdef and 2) parisc has a different
format for function descriptors

Make dereference_function_descriptor() more accommodating by allowing
architecture overrides.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 arch/ia64/include/asm/module.h    |    4 ++++
 arch/ia64/kernel/module.c         |    9 +++++++++
 arch/parisc/kernel/module.c       |   13 +++++++++++++
 arch/powerpc/include/asm/module.h |    6 ++++++
 arch/powerpc/kernel/module_64.c   |    9 +++++++++
 include/asm-parisc/module.h       |    6 ++++++
 include/linux/module.h            |    5 +++++
 lib/vsprintf.c                    |   10 ----------
 8 files changed, 52 insertions(+), 10 deletions(-)

diff --git a/arch/ia64/include/asm/module.h b/arch/ia64/include/asm/module.h
index d2da61e..d0328be 100644
--- a/arch/ia64/include/asm/module.h
+++ b/arch/ia64/include/asm/module.h
@@ -33,4 +33,8 @@ struct mod_arch_specific {
 
 #define ARCH_SHF_SMALL	SHF_IA_64_SHORT
 
+void *ia64_dereference_function_descriptor(void *);
+#define dereference_function_descriptor(p) \
+	ia64_dereference_function_descriptor(p)
+
 #endif /* _ASM_IA64_MODULE_H */
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index 29aad34..4aca326 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -31,6 +31,7 @@
 #include <linux/elf.h>
 #include <linux/moduleloader.h>
 #include <linux/string.h>
+#include <linux/uaccess.h>
 #include <linux/vmalloc.h>
 
 #include <asm/patch.h>
@@ -941,3 +942,11 @@ module_arch_cleanup (struct module *mod)
 	if (mod->arch.core_unw_table)
 		unw_remove_unwind_table(mod->arch.core_unw_table);
 }
+
+void *ia64_dereference_function_descriptor(void *ptr)
+{
+	void *p;
+	if (!probe_kernel_address(ptr, p))
+		ptr = p;
+	return ptr;
+}
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index fdacdd4..6ec3b07 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -47,6 +47,7 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/bug.h>
+#include <linux/uaccess.h>
 
 #include <asm/unwind.h>
 
@@ -860,3 +861,15 @@ void module_arch_cleanup(struct module *mod)
 	deregister_unwind_table(mod);
 	module_bug_cleanup(mod);
 }
+
+#ifdef CONFIG_64BIT
+void *parisc_dereference_function_descriptor(void *ptr)
+{
+	Elf64_Fdesc *desc = ptr;
+	void *p;
+
+	if (!probe_kernel_address(&desc->addr, p))
+		ptr = p;
+	return ptr;
+}
+#endif
diff --git a/arch/powerpc/include/asm/module.h b/arch/powerpc/include/asm/module.h
index e5f14b1..a861b2c 100644
--- a/arch/powerpc/include/asm/module.h
+++ b/arch/powerpc/include/asm/module.h
@@ -73,5 +73,11 @@ struct exception_table_entry;
 void sort_ex_table(struct exception_table_entry *start,
 		   struct exception_table_entry *finish);
 
+#ifdef __powerpc64__
+void *powerpc64_dereference_function_descriptor(void *);
+#define dereference_function_descriptor(p) \
+	powerpc64_dereference_function_descriptor(p)
+#endif
+
 #endif /* __KERNEL__ */
 #endif	/* _ASM_POWERPC_MODULE_H */
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index ee6a298..e814c2a 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -21,6 +21,7 @@
 #include <linux/err.h>
 #include <linux/vmalloc.h>
 #include <linux/bug.h>
+#include <linux/uaccess.h>
 #include <asm/module.h>
 #include <asm/uaccess.h>
 #include <asm/firmware.h>
@@ -451,3 +452,11 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 
 	return 0;
 }
+
+void *powerpc64_dereference_function_descriptor(void *ptr)
+{
+	void *p;
+	if (!probe_kernel_address(ptr, p))
+		ptr = p;
+	return ptr;
+}
diff --git a/include/asm-parisc/module.h b/include/asm-parisc/module.h
index c2cb49e..f5f971b 100644
--- a/include/asm-parisc/module.h
+++ b/include/asm-parisc/module.h
@@ -29,4 +29,10 @@ struct mod_arch_specific
 	struct unwind_table *unwind;
 };
 
+#ifdef CONFIG_64BIT
+void *parisc_dereference_function_descriptor(void *);
+#define dereference_function_descriptor(p) \
+	parisc_dereference_function_descriptor(p)
+#endif
+
 #endif /* _ASM_PARISC_MODULE_H */
diff --git a/include/linux/module.h b/include/linux/module.h
index 68e0955..a549f89 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -76,6 +76,11 @@ void sort_extable(struct exception_table_entry *start,
 		  struct exception_table_entry *finish);
 void sort_main_extable(void);
 
+/* function descriptor handling (if any) */
+#ifndef dereference_function_descriptor
+#define dereference_function_descriptor(p) (p)
+#endif
+
 #ifdef MODULE
 #define MODULE_GENERIC_TABLE(gtype,name)			\
 extern const struct gtype##_id __mod_##gtype##_table		\
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index d8d1d11..0c47629 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -513,16 +513,6 @@ static char *string(char *buf, char *end, char *s, int field_width, int precisio
 	return buf;
 }
 
-static inline void *dereference_function_descriptor(void *ptr)
-{
-#if defined(CONFIG_IA64) || defined(CONFIG_PPC64)
-	void *p;
-	if (!probe_kernel_address(ptr, p))
-		ptr = p;
-#endif
-	return ptr;
-}

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On Wed, 3 Sep 2008, James Bottomley wrote:
> 
> Is that finally final?  because the last time I tried to do the above
> for a voyager override I was told weak functions were the preferred
> method ...

Weak functions are fine IF THEY DO SOMETHING REAL AND SHOULD BE FUNCTIONS 
IN THE FIRST PLACE!

IOW, if the default behaviour is actually something that should be a 
function, then a weak function is the simplest and most appropriate way of 
doing thigns.

But if the default behaviour is to not do anything at all, then a weak 
function simply doesn't work - because it will always generate that stupid 
and useless function call. And then you have to have per-architecture 
inline functions.

And in order to avoid having all 99 architectures that don't care at all 
add an empty inline function, then you essentially have to use a #define 
to allow us to detect at compile-time that no function existed.

> Anyway, it's easy to do (if a slightly larger diff) ... I have to move
> the prototype from include/kernel.h to include/module.h because I need
> an assured asm/xxx include before it to get the override.

I don't really see what this has to do with module.h, though.

Why do this in <linux/module.h>?  Why not just do it in lib/vsptintf.c 
which is the only place that cares? None of this needs to pollute the 
generic header files that simply don't care.

			Linus

From - Thu Nov 08 21:02:47 2018
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Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
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On Wed, 2008-09-03 at 15:54 -0700, Linus Torvalds wrote:
> > Anyway, it's easy to do (if a slightly larger diff) ... I have to move
> > the prototype from include/kernel.h to include/module.h because I need
> > an assured asm/xxx include before it to get the override.
> 
> I don't really see what this has to do with module.h, though.
> 
> Why do this in <linux/module.h>?  Why not just do it in lib/vsptintf.c 
> which is the only place that cares? None of this needs to pollute the 
> generic header files that simply don't care.

You want me to pull the elf header files into lib/vsprintf.c and have
something like

static inline void *dereference_function_descritpor(void *ptr)
{
#if defined(CONFIG_IA64) || defined(CONFIG_PPC64)
	void *p;
	if (!probe_kernel_address(ptr, p))
		ptr = p;
#elif defined(CONFIG_PARISC) && defined(CONFIG_64BITS)
	Elf64_Fptr *desc = ptr;
	void *p;
	if (!probe_kernel_address(&desc->addr, p))
		ptr = p;
#endif
	...

?

Because it just looks rather tacky ...

James


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On Wed, 3 Sep 2008, James Bottomley wrote:
> 
> You want me to pull the elf header files into lib/vsprintf.c and have
> something like

No.

I want you to stop polluting <linux/module.h> with total and utter crap.

Please tell my WHY the hell you have

	diff --git a/include/linux/module.h b/include/linux/module.h
	index 68e0955..a549f89 100644
	--- a/include/linux/module.h
	+++ b/include/linux/module.h
	@@ -76,6 +76,11 @@ void sort_extable(struct exception_table_entry *start,
	                  struct exception_table_entry *finish);
	 void sort_main_extable(void);
	 
	+/* function descriptor handling (if any) */
	+#ifndef dereference_function_descriptor
	+#define dereference_function_descriptor(p) (p)
	+#endif
	+
	 #ifdef MODULE
	 #define MODULE_GENERIC_TABLE(gtype,name)                       \
	 extern const struct gtype##_id __mod_##gtype##_table           \

in your patch? What the _hell_ does that have to do with "module.h"?

Why the heck don't you just have that in the ONLY place that cares, namely 
lib/vfprintf.c?

In other words, WHY did you do something as stupid and totally 
unexplainable as

	diff --git a/lib/vsprintf.c b/lib/vsprintf.c
	index d8d1d11..0c47629 100644
	--- a/lib/vsprintf.c
	+++ b/lib/vsprintf.c
	@@ -513,16 +513,6 @@ static char *string(char *buf, char *end, char *s, int field_width, int precisio
	        return buf;
	 }
	 
	-static inline void *dereference_function_descriptor(void *ptr)
	-{
	-#if defined(CONFIG_IA64) || defined(CONFIG_PPC64)
	-       void *p;
	-       if (!probe_kernel_address(ptr, p))
	-               ptr = p;
	-#endif
	-       return ptr;
	-}
	-

when that thing _used_ to be in a place where it made sense? Why didn't 
you just change that already existing code to use a #ifdef instead?

Why do you move that to <linux/module.h>? It makes no sense.

And why do you put the arch-specific defines in <asm/module.h>? That makes 
no sense either. WHY?

As far as I can tell, the _only_ reason you happened to pick 
<linux/module.h> was literally that it is the first of our header files 
that lib/vsprintf.c includes. And quite frankly, that makes no sense. 

That's about as sensible as putting it into <linux/string.h>. 

Put those things in some _sane_ place. That means:

 - default non-implementation in lib/vsprintf.c, since there is no point 
   in putting it anywhere else, when it's not used anywhere else.

 - arch-specific implementations can go into some more sensible asm header 
   file that is more relevant. Maybe <asm/processor.h>?

IOW, I'm complaining about your totally senseless and apparently random 
choice of location.

			Linus

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On Wed, 2008-09-03 at 16:15 -0700, Linus Torvalds wrote:
> 
> On Wed, 3 Sep 2008, James Bottomley wrote:
> > 
> > You want me to pull the elf header files into lib/vsprintf.c and have
> > something like
> 
> No.
> 
> I want you to stop polluting <linux/module.h> with total and utter crap.
> 
> Please tell my WHY the hell you have
> 
> 	diff --git a/include/linux/module.h b/include/linux/module.h
> 	index 68e0955..a549f89 100644
> 	--- a/include/linux/module.h
> 	+++ b/include/linux/module.h
> 	@@ -76,6 +76,11 @@ void sort_extable(struct exception_table_entry *start,
> 	                  struct exception_table_entry *finish);
> 	 void sort_main_extable(void);
> 	 
> 	+/* function descriptor handling (if any) */
> 	+#ifndef dereference_function_descriptor
> 	+#define dereference_function_descriptor(p) (p)
> 	+#endif
> 	+
> 	 #ifdef MODULE
> 	 #define MODULE_GENERIC_TABLE(gtype,name)                       \
> 	 extern const struct gtype##_id __mod_##gtype##_table           \
> 
> in your patch? What the _hell_ does that have to do with "module.h"?
> 
> Why the heck don't you just have that in the ONLY place that cares, namely 
> lib/vfprintf.c?

Oh ... because Arjan has a patch to export
dereference_function_descriptor.  I suppose I could make him do the
heavy lifting, but it seemed sensible to make it easy for him (and me)
by putting it in a header.

http://marc.info/?l=linux-kernel&m=121976793429869

It's already in Ingo's tree, so it will be upstream soon.

> In other words, WHY did you do something as stupid and totally 
> unexplainable as
> 
> 	diff --git a/lib/vsprintf.c b/lib/vsprintf.c
> 	index d8d1d11..0c47629 100644
> 	--- a/lib/vsprintf.c
> 	+++ b/lib/vsprintf.c
> 	@@ -513,16 +513,6 @@ static char *string(char *buf, char *end, char *s, int field_width, int precisio
> 	        return buf;
> 	 }
> 	 
> 	-static inline void *dereference_function_descriptor(void *ptr)
> 	-{
> 	-#if defined(CONFIG_IA64) || defined(CONFIG_PPC64)
> 	-       void *p;
> 	-       if (!probe_kernel_address(ptr, p))
> 	-               ptr = p;
> 	-#endif
> 	-       return ptr;
> 	-}
> 	-
> 
> when that thing _used_ to be in a place where it made sense? Why didn't 
> you just change that already existing code to use a #ifdef instead?
> 
> Why do you move that to <linux/module.h>? It makes no sense.
> 
> And why do you put the arch-specific defines in <asm/module.h>? That makes 
> no sense either. WHY?
> 
> As far as I can tell, the _only_ reason you happened to pick 
> <linux/module.h> was literally that it is the first of our header files 
> that lib/vsprintf.c includes. And quite frankly, that makes no sense. 
> 
> That's about as sensible as putting it into <linux/string.h>. 
> 
> Put those things in some _sane_ place. That means:
> 
>  - default non-implementation in lib/vsprintf.c, since there is no point 
>    in putting it anywhere else, when it's not used anywhere else.
> 
>  - arch-specific implementations can go into some more sensible asm header 
>    file that is more relevant. Maybe <asm/processor.h>?
> 
> IOW, I'm complaining about your totally senseless and apparently random 
> choice of location.

Because arch/../kernel/module.c is where we put the in-kernel linker
which uses the function descriptors and already processes them.

The original patch put the prototype in kernel.h, but kernel.h doesn't
include too many files before it, so if I'm putting the arch
implementation in module.c, it makes sense to me to put the headers in
linux/module.h and asm/module.h being the natural pair belonging to
arch/kernel/module.c

So if I use asm/processor.h, you want me to add that to linux/kernel.h
and move the prototypes back in there?

James


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From - Thu Nov 08 21:02:47 2018
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On Wed, 3 Sep 2008, James Bottomley wrote:
> 
> Oh ... because Arjan has a patch to export
> dereference_function_descriptor.  I suppose I could make him do the
> heavy lifting, but it seemed sensible to make it easy for him (and me)
> by putting it in a header.
> 
> http://marc.info/?l=linux-kernel&m=121976793429869

Ahh.

NOW it all starts to make sense.

Or perhaps not sense, but I at least understand why people want to move it 
around. The kernel.h location kind of goes together with that 
core_kernel_text() thing, although it seems to be more of a "random 
collection of routines" thing than anything else (but hey, that's the very 
definition of "kernel.h" for you).

The module.h location still seems to be more of a "oh, both 
kernel/extable.c and lib/vsprintf.c already included <linux/module.h>" and 
it's a bit sad, since it really has nothing at all to do with modules.

Grr. It does seem like we don't have any kind of "abi" header file. 
<linux/kernel.h> and <asm/processor.h> has various random things.

So yea, there doesn't seem to be any _obvious_ place that makes sense.

		Linus

Not-very-strong-opinion: How about <asm/sections.h>? That does seem to be 
where we already hide things like "in_kernel_text()" at least on powerpc. 
In fact, since we already always have a generic version, the patch would 
actually be something like

 - in <asm-generic/sections.h>, just do

	#define dereference_function_descriptor(p) (p)

 - in architectures that want to override it

	#undef dereference_function_descriptor

   followed by 

	static inline void *dereference_function_descriptor(..) ..
	or
	#define dereference_function_descriptor my_fn_dereference

   since they all include the generic one as a base

Hmm? I do admit that "<asm/sections.h>" doesn't really strike me as a very 
natural name for this, but kernel/extable.c does already include it for 
other reasons, and it's at least no worse than module.h.
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On Wed, Sep 03, 2008 at 12:35:37PM -0500, James Bottomley wrote:
> It looks like the old dhcp server was converted to dhcp3 without pulling
> across all of the dhcp entries.  I've added the gig-e network and and
> entry for ion (which I needed to get it to come up).  However, there are
> evidently still machines out there trying and failing to get IP
> addresses:
> 
> Sep  3 10:24:29 gsyprf11 dhcpd: DHCPDISCOVER from 00:17:08:c8:75:40 via eth11: network 192.168.1/24: no free leases
> Sep  3 10:36:29 gsyprf11 dhcpd: DHCPDISCOVER from 00:04:ea:b1:cf:80 via eth10: network 192.168.0/24: no free leases

gsyprf11 intentionally has no free leases. I plan was gsyprf11 should
only serve IP's for the systems that can/should netboot from it.
ie other parisc systems.

> So whoever's systems these are will need to add an entry for them.

I don't know offhand which systems they represent but can probably
work that out. I just add those to the dhcp server running on gsyprf10.

I suspect it's a FC switch or something like that.

thanks,
grant

> 
> James
> 
> 
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On Wed, Sep 03, 2008 at 12:35:37PM -0500, James Bottomley wrote:
> It looks like the old dhcp server was converted to dhcp3 without pulling
> across all of the dhcp entries.

I suspect I "upgraded" the switchs and never realized I needed to add the IP
to DHCP.

> I've added the gig-e network and
> entry for ion (which I needed to get it to come up).  However, there are
> evidently still machines out there trying and failing to get IP
> addresses:
> 
> Sep  3 10:24:29 gsyprf11 dhcpd: DHCPDISCOVER from 00:17:08:c8:75:40 via eth11: network 192.168.1/24: no free leases

ProCurve Switch 2848#

Just "telnet 192.168.1.131".

> Sep  3 10:36:29 gsyprf11 dhcpd: DHCPDISCOVER from 00:04:ea:b1:cf:80 via eth10: network 192.168.0/24: no free leases

HP J4813A ProCurve Switch 2524

thanks,
grant
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On Wed, 2008-09-03 at 17:01 -0700, Linus Torvalds wrote:
> 
> On Wed, 3 Sep 2008, James Bottomley wrote:
> > 
> > Oh ... because Arjan has a patch to export
> > dereference_function_descriptor.  I suppose I could make him do the
> > heavy lifting, but it seemed sensible to make it easy for him (and me)
> > by putting it in a header.
> > 
> > http://marc.info/?l=linux-kernel&m=121976793429869
> 
> Ahh.
> 
> NOW it all starts to make sense.
> 
> Or perhaps not sense, but I at least understand why people want to move it 
> around. The kernel.h location kind of goes together with that 
> core_kernel_text() thing, although it seems to be more of a "random 
> collection of routines" thing than anything else (but hey, that's the very 
> definition of "kernel.h" for you).
> 
> The module.h location still seems to be more of a "oh, both 
> kernel/extable.c and lib/vsprintf.c already included <linux/module.h>" and 
> it's a bit sad, since it really has nothing at all to do with modules.
> 
> Grr. It does seem like we don't have any kind of "abi" header file. 
> <linux/kernel.h> and <asm/processor.h> has various random things.
> 
> So yea, there doesn't seem to be any _obvious_ place that makes sense.
> 
> 		Linus
> 
> Not-very-strong-opinion: How about <asm/sections.h>? That does seem to be 
> where we already hide things like "in_kernel_text()" at least on powerpc. 
> In fact, since we already always have a generic version, the patch would 
> actually be something like
> 
>  - in <asm-generic/sections.h>, just do
> 
> 	#define dereference_function_descriptor(p) (p)
> 
>  - in architectures that want to override it
> 
> 	#undef dereference_function_descriptor
> 
>    followed by 
> 
> 	static inline void *dereference_function_descriptor(..) ..
> 	or
> 	#define dereference_function_descriptor my_fn_dereference
> 
>    since they all include the generic one as a base
> 
> Hmm? I do admit that "<asm/sections.h>" doesn't really strike me as a very 
> natural name for this, but kernel/extable.c does already include it for 
> other reasons, and it's at least no worse than module.h.

Well, good as any other I suppose.  So this is what you want?

James

---

It was introduced by 

commit 0fe1ef24f7bd0020f29ffe287dfdb9ead33ca0b2
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sun Jul 6 16:43:12 2008 -0700

    vsprintf: add support for '%pS' and '%pF' pointer formats


However, the current way its coded doesn't work on parisc64.  For two
reasons:  1) parisc isn't in the #ifdef and 2) parisc has a different
format for function descriptors

Make dereference_function_descriptor() more accommodating by allowing
architecture overrides.  I put the three overrides (for parisc64, ppc64
and ia64) in arch/kernel/module.c because that's where the kernel
internal linker which knows how to deal with function descriptors sits.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 arch/ia64/include/asm/sections.h    |    3 +++
 arch/ia64/kernel/module.c           |   12 ++++++++++++
 arch/parisc/kernel/module.c         |   14 ++++++++++++++
 arch/powerpc/include/asm/sections.h |    3 +++
 arch/powerpc/kernel/module_64.c     |   13 ++++++++++++-
 include/asm-generic/sections.h      |    6 ++++++
 include/asm-parisc/sections.h       |    5 +++++
 lib/vsprintf.c                      |   11 +----------
 8 files changed, 56 insertions(+), 11 deletions(-)

diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h
index 7286e4a..a7acad2 100644
--- a/arch/ia64/include/asm/sections.h
+++ b/arch/ia64/include/asm/sections.h
@@ -21,5 +21,8 @@ extern char __start_gate_brl_fsys_bubble_down_patchlist[], __end_gate_brl_fsys_b
 extern char __start_unwind[], __end_unwind[];
 extern char __start_ivt_text[], __end_ivt_text[];
 
+#undef dereference_function_descriptor
+void *dereference_function_descriptor(void *);
+
 #endif /* _ASM_IA64_SECTIONS_H */
 
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index 29aad34..545626f 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -31,9 +31,11 @@
 #include <linux/elf.h>
 #include <linux/moduleloader.h>
 #include <linux/string.h>
+#include <linux/uaccess.h>
 #include <linux/vmalloc.h>
 
 #include <asm/patch.h>
+#include <asm/sections.h>
 #include <asm/unaligned.h>
 
 #define ARCH_MODULE_DEBUG 0
@@ -941,3 +943,13 @@ module_arch_cleanup (struct module *mod)
 	if (mod->arch.core_unw_table)
 		unw_remove_unwind_table(mod->arch.core_unw_table);
 }
+
+void *dereference_function_descriptor(void *ptr)
+{
+	struct fdesc *desc = ptr;
+	void *p;
+
+	if (!probe_kernel_address(&desc->ip, p))
+		ptr = p;
+	return ptr;
+}
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index fdacdd4..44138c3 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -47,7 +47,9 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/bug.h>
+#include <linux/uaccess.h>
 
+#include <asm/sections.h>
 #include <asm/unwind.h>
 
 #if 0
@@ -860,3 +862,15 @@ void module_arch_cleanup(struct module *mod)
 	deregister_unwind_table(mod);
 	module_bug_cleanup(mod);
 }
+
+#ifdef CONFIG_64BIT
+void *dereference_function_descriptor(void *ptr)
+{
+	Elf64_Fdesc *desc = ptr;
+	void *p;
+
+	if (!probe_kernel_address(&desc->addr, p))
+		ptr = p;
+	return ptr;
+}
+#endif
diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
index 916018e..7710e9e 100644
--- a/arch/powerpc/include/asm/sections.h
+++ b/arch/powerpc/include/asm/sections.h
@@ -16,6 +16,9 @@ static inline int in_kernel_text(unsigned long addr)
 	return 0;
 }
 
+#undef dereference_function_descriptor
+void *dereference_function_descriptor(void *);
+
 #endif
 
 #endif /* __KERNEL__ */
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index ee6a298..ad79de2 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -21,8 +21,9 @@
 #include <linux/err.h>
 #include <linux/vmalloc.h>
 #include <linux/bug.h>
+#include <linux/uaccess.h>
 #include <asm/module.h>
-#include <asm/uaccess.h>
+#include <asm/sections.h>
 #include <asm/firmware.h>
 #include <asm/code-patching.h>
 #include <linux/sort.h>
@@ -451,3 +452,13 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 
 	return 0;
 }
+
+void *dereference_function_descriptor(void *ptr)
+{
+	struct ppc64_opd_entry *desc = ptr;
+	void *p;
+
+	if (!probe_kernel_address(&desc->funcaddr, p))
+		ptr = p;
+	return ptr;
+}
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index 8feeae1..79a7ff9 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -14,4 +14,10 @@ extern char __kprobes_text_start[], __kprobes_text_end[];
 extern char __initdata_begin[], __initdata_end[];
 extern char __start_rodata[], __end_rodata[];
 
+/* function descriptor handling (if any).  Override
+ * in asm/sections.h */
+#ifndef dereference_function_descriptor
+#define dereference_function_descriptor(p) (p)
+#endif
+
 #endif /* _ASM_GENERIC_SECTIONS_H_ */
diff --git a/include/asm-parisc/sections.h b/include/asm-parisc/sections.h
index fdd43ec..9d13c35 100644
--- a/include/asm-parisc/sections.h
+++ b/include/asm-parisc/sections.h
@@ -4,4 +4,9 @@
 /* nothing to see, move along */
 #include <asm-generic/sections.h>
 
+#ifdef CONFIG_64BIT
+#undef dereference_function_descriptor
+void *dereference_function_descriptor(void *);
+#endif
+
 #endif
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index d8d1d11..c399bc1 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -27,6 +27,7 @@
 
 #include <asm/page.h>		/* for PAGE_SIZE */
 #include <asm/div64.h>
+#include <asm/sections.h>	/* for dereference_function_descriptor() */
 
 /* Works only for digits and letters, but small and fast */
 #define TOLOWER(x) ((x) | 0x20)
@@ -513,16 +514,6 @@ static char *string(char *buf, char *end, char *s, int field_width, int precisio
 	return buf;
 }
 
-static inline void *dereference_function_descriptor(void *ptr)
-{
-#if defined(CONFIG_IA64) || defined(CONFIG_PPC64)
-	void *p;
-	if (!probe_kernel_address(ptr, p))
-		ptr = p;
-#endif
-	return ptr;
-}
-
 static char *symbol_string(char *buf, char *end, void *ptr, int field_width, int precision, int flags)
 {
 	unsigned long value = (unsigned long) ptr;
-- 
1.5.6.5




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On Thu, Sep 4, 2008 at 7:45 AM, Domenico Andreoli <cavok@dandreoli.com> wrote:
>  I would set NPTL transition as a goal for queeze.
>
> Are we available to agree on a shared path to push new life to this port?
> I mean, this issue will bite more and more frequently, it must be fixed.

I agree. I'm available and willing. I'm just not a DD nor am I
familiar with debians sbuild or buildds.

> I am available to follow the required steps but obviously the more eyes
> the better. This is the first time I work on a big transition like this.

I'm available at OFTC on #debian-glibc. I act as a debian-hppa porter
and help Aurelian when glibc hppa issues arise.

> I think the first packages have to be cross-built, until a minimal
> build system is ready to run on the new libc6.1 (chroot?). Then start
> an archive rebuild. It looks easy, where is the trap? :)

I'm not familiar with the debian build infrastructure, but I am *very*
familiar with libc since I'm the upstream ports maintainer for hppa.

I don't think there is any trap.

Cheers,
Carlos.
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Subject: panic on boot with kernel/sysctl.c changes in 2.6.27-rc5
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This patch:

commit ae7edecc9b8810770a8e5cb9a466ea4bdcfa8401
Author: Al Viro <viro@zeniv.linux.org.uk>
Date:   Tue Jul 15 06:33:31 2008 -0400

    [PATCH] sysctl: keep track of tree relationships

Is causing a panic on boot with parisc.  The panic occurs when we try to
bring up the secondary CPUs via hotplug, so I think it's a general panic
that would be seen on any architecture.

This is what the boot shows:

Searching for devices...
Found devices:
1. Storm Peak Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x887, 0x00004 }
2. Storm Peak Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x887, 0x00004 }
3. Storm Peak Slow at 0xfffffffffe798000 [152] { 0, 0x0, 0x887, 0x00004 }
4. Storm Peak Slow at 0xfffffffffe799000 [153] { 0, 0x0, 0x887, 0x00004 }
5. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
8. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
9. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
10. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
11. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
12. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
13. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
14. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
Releasing cpu 1 now, hpa=fffffffffe781000
FP[1] enabled: Rev 1 Model 20
------------[ cut here ]------------
Badness at kernel/sysctl.c:1929

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000001111100001111 Not tainted
r00-03  0000000008041f0f 00000000405956e0 000000004015c4bc 000000007f410d58
r04-07  0000000040589ee0 000000004048d1e4 00000000404b0040 0000000000000001
r08-11  0000000000000002 0000000040467868 0000000000000000 0000000000000000
r12-15  00000000405c25d0 0000000000000001 0000000000000000 0000000000000000
r16-19  00000000405c2f00 00000000404e58c0 00000000405c2f00 00000000404c8758
r20-23  0000000000000005 000000007f469df0 0000000000000022 fffffffffffffff3
r24-27  0000000000000000 0000000000000022 00000000404c8788 0000000040589ee0
r28-31  0000000000000000 000000007f469e50 000000007f469e80 000000007f410d60
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004015c538 000000004015c53c
 IIR: 03ffe01f    ISR: 0000000010240000  IOR: 00000001320c87a4
 CPU:        0   CR30: 000000007f468000 CR31: fffffff0f0e098e0
 ORIG_R28: 00000000404d1340
 IAOQ[0]: unregister_sysctl_table+0xb0/0x138
 IAOQ[1]: unregister_sysctl_table+0xb4/0x138
 RP(r2): unregister_sysctl_table+0x34/0x138
Backtrace:
 [<0000000040116384>] mutex_lock+0x14/0x20
 [<0000000040148930>] partition_sched_domains+0x88/0x3e8
 [<00000000401469fc>] wake_up_process+0x24/0x38
 [<0000000040122324>] print_one_device+0xbc/0x160
 [<00000000402e3d04>] next_device+0x14/0x30
 [<00000000402e3e10>] device_for_each_child+0x90/0xb8
 [<0000000040121dfc>] for_each_padev+0x34/0x48
 [<000000004012005c>] pdc_pat_cell_module+0xf4/0x178
 [<00000000401524d0>] printk+0x40/0x50
 [<0000000040175e64>] update_wall_time+0x26c/0x560
 [<000000004018bdd4>] __rcu_process_callbacks+0x19c/0x258
 [<000000004014313c>] enqueue_task_fair+0x5c/0x88
 [<000000004014313c>] enqueue_task_fair+0x5c/0x88
 [<0000000040141324>] __dequeue_entity+0x4c/0xb0
 [<00000000401c08dc>] cache_alloc_debugcheck_after+0x23c/0x2f0
 [<0000000040115f58>] __mutex_unlock_slowpath+0x70/0x168

------------[ cut here ]------------
kernel BUG at mm/slab.c:590!

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111110000001110 Tainted: G        W
r00-03  000000ff0804fc0e 0000000040591ee0 00000000401c0f24 000000007f410d58
r04-07  0000000040589ee0 000000004048d1e4 00000000404c8788 000000004015c548
r08-11  000000000800000f 0000000040467868 0000000000000000 0000000000000000
r12-15  00000000405c25d0 0000000000000001 0000000000000000 0000000000000000
r16-19  00000000405c2f00 00000000404e58c0 00000000405c2f00 00000000408e3000
r20-23  00000000004c8788 00000000000004c8 0000000000000022 fffffffffffffff3
r24-27  0000000000000000 00000000404c8788 00000000408f3bc0 0000000040589ee0
r28-31  0000000000000400 000000007f469ef0 000000007f469f20 0000000000000400
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401c1120 00000000401c1124
 IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000
 CPU:        0   CR30: 000000007f468000 CR31: fffffff0f0e098e0
 ORIG_R28: 000000007f46a0c0
 IAOQ[0]: kfree+0x238/0x258
 IAOQ[1]: kfree+0x23c/0x258
 RP(r2): kfree+0x3c/0x258
Backtrace:
 [<000000004015c548>] unregister_sysctl_table+0xc0/0x138
 [<0000000040116384>] mutex_lock+0x14/0x20
 [<0000000040148930>] partition_sched_domains+0x88/0x3e8
 [<00000000401469fc>] wake_up_process+0x24/0x38
 [<0000000040122324>] print_one_device+0xbc/0x160
 [<00000000402e3d04>] next_device+0x14/0x30
 [<00000000402e3e10>] device_for_each_child+0x90/0xb8
 [<0000000040121dfc>] for_each_padev+0x34/0x48
 [<000000004012005c>] pdc_pat_cell_module+0xf4/0x178
 [<00000000401524d0>] printk+0x40/0x50
 [<0000000040175e64>] update_wall_time+0x26c/0x560
 [<000000004018bdd4>] __rcu_process_callbacks+0x19c/0x258
 [<000000004014313c>] enqueue_task_fair+0x5c/0x88
 [<000000004014313c>] enqueue_task_fair+0x5c/0x88
 [<0000000040141324>] __dequeue_entity+0x4c/0xb0
 [<00000000401c08dc>] cache_alloc_debugcheck_after+0x23c/0x2f0

Backtrace:
 [<000000004011b6ec>] parisc_show_stack+0x9c/0xe8
 [<000000004011b74c>] show_stack+0x14/0x20
 [<000000004013fbc8>] update_curr+0x60/0xa0
 [<00000000402651bc>] report_bug+0xf4/0x150
 [<000000004015c548>] unregister_sysctl_table+0xc0/0x138
 [<00000000401c1120>] kfree+0x238/0x258
 [<00000000401c0f24>] kfree+0x3c/0x258
 [<000000004015c548>] unregister_sysctl_table+0xc0/0x138
 [<0000000040116384>] mutex_lock+0x14/0x20
 [<0000000040148930>] partition_sched_domains+0x88/0x3e8
 [<00000000401469fc>] wake_up_process+0x24/0x38
 [<0000000040122324>] print_one_device+0xbc/0x160
 [<00000000402e3d04>] next_device+0x14/0x30
 [<00000000402e3e10>] device_for_each_child+0x90/0xb8
 [<0000000040121dfc>] for_each_padev+0x34/0x48
 [<000000004012005c>] pdc_pat_cell_module+0xf4/0x178

Kernel panic - not syncing: Attempted to kill init!

The first is the WARN_ON(1) here in kernel/sysctl.c:

	if (!--header->parent->count) {
		WARN_ON(1);
		kfree(header->parent);
	}

And the BUG is because this code is trying to kfree sd_ctl_root (as the
parent) which is in static memory.

I've no idea what this code is trying to accomplish, but, since in
practice a lot of sysfs roots are in static memory, it's clearly bogus.
Even if we'd put sd_ctl_root in kmalloc'd memory, we don't want it
freed. The hotplug is merely trying to release all its current children
before adding new ones (which naturally takes the parent refcount to
zero). I suggest dumping this whole if clause.

James

---

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index fe47133..cbf0ebf 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1925,10 +1925,8 @@ void unregister_sysctl_table(struct ctl_table_header * header)
 
 	spin_lock(&sysctl_lock);
 	start_unregistering(header);
-	if (!--header->parent->count) {
-		WARN_ON(1);
-		kfree(header->parent);
-	}
+	--header->parent->count;
+
 	if (!--header->count)
 		kfree(header);
 	spin_unlock(&sysctl_lock);



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From: dann frazier <dannf@dannf.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: NTPL transition
Date: Thu, 4 Sep 2008 09:23:29 -0600
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Cc: Debian HPPA Port List <debian-hppa@lists.debian.org>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Thu, Sep 04, 2008 at 10:13:15AM -0400, Carlos O'Donell wrote:
> On Thu, Sep 4, 2008 at 7:45 AM, Domenico Andreoli <cavok@dandreoli.com> wrote:
> >  I would set NPTL transition as a goal for queeze.
> >
> > Are we available to agree on a shared path to push new life to this port?
> > I mean, this issue will bite more and more frequently, it must be fixed.
> 
> I agree. I'm available and willing. I'm just not a DD nor am I
> familiar with debians sbuild or buildds.
> 
> > I am available to follow the required steps but obviously the more eyes
> > the better. This is the first time I work on a big transition like this.
> 
> I'm available at OFTC on #debian-glibc. I act as a debian-hppa porter
> and help Aurelian when glibc hppa issues arise.
> 
> > I think the first packages have to be cross-built, until a minimal
> > build system is ready to run on the new libc6.1 (chroot?). Then start
> > an archive rebuild. It looks easy, where is the trap? :)
> 
> I'm not familiar with the debian build infrastructure, but I am *very*
> familiar with libc since I'm the upstream ports maintainer for hppa.
> 
> I don't think there is any trap.

I've already done the initial bootstrapping and John Wright and I have
a buildd actively rebuilding bits against sid. We're rsyncing the
results out to here:
  http://parisc-linux.org/~dannf/hppa-nptl-mirror/unstable/

Suffice to say, the rebuild is going fairly smoothly. But, I wonder
how we're going to transition systems over to an NPTL userspace. Does
anyone have a plan for that?

-- 
dann frazier

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From - Thu Nov 08 21:02:48 2018
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On Thu, Sep 4, 2008 at 11:23 AM, dann frazier <dannf@dannf.org> wrote:
> I've already done the initial bootstrapping and John Wright and I have
> a buildd actively rebuilding bits against sid. We're rsyncing the
> results out to here:
>  http://parisc-linux.org/~dannf/hppa-nptl-mirror/unstable/
>
> Suffice to say, the rebuild is going fairly smoothly. But, I wonder
> how we're going to transition systems over to an NPTL userspace. Does
> anyone have a plan for that?

Isn't this the responsibility of the package manager?

Why wouldn't apt-get dist-upgrade work?

Cheers,
Carlos.
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From - Thu Nov 08 21:02:48 2018
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On Thu, Sep 04, 2008 at 11:31:52AM -0400, Carlos O'Donell wrote:
> On Thu, Sep 4, 2008 at 11:23 AM, dann frazier <dannf@dannf.org> wrote:
> > I've already done the initial bootstrapping and John Wright and I have
> > a buildd actively rebuilding bits against sid. We're rsyncing the
> > results out to here:
> >  http://parisc-linux.org/~dannf/hppa-nptl-mirror/unstable/
> >
> > Suffice to say, the rebuild is going fairly smoothly. But, I wonder
> > how we're going to transition systems over to an NPTL userspace. Does
> > anyone have a plan for that?
> 
> Isn't this the responsibility of the package manager?
> 
> Why wouldn't apt-get dist-upgrade work?

We had a discussion about this on IRC, a while back, let me see if I
can recap...

If we continue to use libc6 as the package name as we're currently
doing, at some point libc will get upgraded to the NPTL interface and
things will start crashing immediately. I asked if we could just do
"whatever x86 did", and kyle said that we have a problem they didn't -
our data nptl/lt data structures are incompatible.

We can deal with that to an extent by adding a second libc package,
e.g., libc6.1. But, jejb pointed out that, since most libs depend on
libc, we'll need to be able to have libs for both interfaces at the
same time to support a transitional upgrade - and that implies an
SONAME bump for every C library.

Hopefully there's an easier way, but I don't know of one.

-- 
dann frazier
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From - Thu Nov 08 21:02:48 2018
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From: Al Viro <viro@ZenIV.linux.org.uk>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] forgotten refcount on sysctl root table
Date: Thu, 4 Sep 2008 17:05:57 +0100
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	We should've set refcount on the root sysctl table; otherwise we'll
blow up the first time we get down to zero dynamically registered sysctl
tables.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index fe47133..50ec088 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -159,6 +159,7 @@ static int proc_dointvec_taint(struct ctl_table *table, int write, struct file *
 static struct ctl_table root_table[];
 static struct ctl_table_root sysctl_table_root;
 static struct ctl_table_header root_table_header = {
+	.count = 1,
 	.ctl_table = root_table,
 	.ctl_entry = LIST_HEAD_INIT(sysctl_table_root.default_set.list),
 	.root = &sysctl_table_root,
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On Thu, 2008-09-04 at 17:05 +0100, Al Viro wrote:
> 	We should've set refcount on the root sysctl table; otherwise we'll
> blow up the first time we get down to zero dynamically registered sysctl
> tables.
> 
> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

That fixes the problem,

Thanks,

James


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From - Thu Nov 08 21:02:48 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: [PATCH] initialise the unwinder really early
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The stack traces from the recent boot panic showed that the unwinder
wasn't working correctly.  Debugging by tausq revealed that it wasn't
set up yet, so fix this by calling it first from setup_arch().

James

---

diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 39e7c5a..0391631 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -44,6 +44,7 @@
 #include <asm/pdc_chassis.h>
 #include <asm/io.h>
 #include <asm/setup.h>
+#include <asm/unwind.h>
 
 static char __initdata command_line[COMMAND_LINE_SIZE];
 
@@ -123,6 +124,7 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_64BIT
 	extern int parisc_narrow_firmware;
 #endif
+	unwind_init();
 
 	init_per_cpu(smp_processor_id());	/* Set Modes & Enable FP */
 
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 701b2d2..6773c58 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -170,7 +170,7 @@ void unwind_table_remove(struct unwind_table *table)
 }
 
 /* Called from setup_arch to import the kernel unwind info */
-static int unwind_init(void)
+int unwind_init(void)
 {
 	long start, stop;
 	register unsigned long gp __asm__ ("r27");
@@ -417,5 +417,3 @@ int unwind_to_user(struct unwind_frame_info *info)
 
 	return ret;
 }

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On Thu, Sep 4, 2008 at 12:04 PM, dann frazier <dannf@dannf.org> wrote:
> If we continue to use libc6 as the package name as we're currently
> doing, at some point libc will get upgraded to the NPTL interface and
> things will start crashing immediately. I asked if we could just do
> "whatever x86 did", and kyle said that we have a problem they didn't -
> our data nptl/lt data structures are incompatible.
>
> We can deal with that to an extent by adding a second libc package,
> e.g., libc6.1. But, jejb pointed out that, since most libs depend on
> libc, we'll need to be able to have libs for both interfaces at the
> same time to support a transitional upgrade - and that implies an
> SONAME bump for every C library.
>
> Hopefully there's an easier way, but I don't know of one.

How far away is queeze?

I have to go write some, code, and test some changes, and get back to
the list with some options.

Namely:

Is it possible to change the pthread structures such that writing the
compatibility code is easy?
- Leave padding where the old lock words were and detect statically
initialized locks by looking at these words?
- Does this break Gentoo? I think they just emerge world.
- Does this break Ubuntu hppa? Probably.

Chers,
Carlos.
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From - Thu Nov 08 21:02:48 2018
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Subject: How DMA_CHUNK_SIZE is related to BIO_VMERGE_MAX_SIZE???[Was: ccio-dma:
 is issue could be related to too much io_tlb entries?]
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Hello Grant et al.,

Looking out how DMA_CHUNK_SIZE is used else where:
root@etchome:/Develop/parisc-linux/Kyle/linux-2.6-snaps.git# find . -type f | xargs grep  DMA_CHUNK_SIZE
./arch/parisc/kernel/pci-dma.c:#include <asm/dma.h>    /* for DMA_CHUNK_SIZE */
./arch/ia64/hp/common/sba_iommu.c:** DMA_CHUNK_SIZE is used by the SCSI mid-layer to break up
./arch/ia64/hp/common/sba_iommu.c:#define DMA_CHUNK_SIZE  (BITS_PER_LONG*iovp_size)
./arch/ia64/hp/common/sba_iommu.c:	ASSERT(size <= DMA_CHUNK_SIZE);
./arch/ia64/hp/common/sba_iommu.c:			ASSERT(startsg->length <= DMA_CHUNK_SIZE);
./arch/ia64/hp/common/sba_iommu.c:			** exceed DMA_CHUNK_SIZE if we coalesce the
./arch/ia64/hp/common/sba_iommu.c:			    > DMA_CHUNK_SIZE)
./arch/ia64/hp/common/sba_iommu.c:		ASSERT(dma_len <= DMA_CHUNK_SIZE);
./drivers/parisc/ccio-dma.c:	BUG_ON((pages_needed * IOVP_SIZE) > DMA_CHUNK_SIZE);
./drivers/parisc/ccio-dma.c:	BUG_ON((pages_mapped * IOVP_SIZE) > DMA_CHUNK_SIZE);
./drivers/parisc/iommu-helpers.h:			** exceed DMA_CHUNK_SIZE if we coalesce the
./drivers/parisc/iommu-helpers.h:					    IOVP_SIZE) > DMA_CHUNK_SIZE))
./drivers/parisc/sba_iommu.c:#include <asm/dma.h>		/* for DMA_CHUNK_SIZE */
./include/asm-parisc/dma.h:** DMA_CHUNK_SIZE is used by the SCSI mid-layer to break up
./include/asm-parisc/dma.h:#define DMA_CHUNK_SIZE	(BITS_PER_LONG*PAGE_SIZE)

Well this last comment "DMA_CHUNK_SIZE is used by the SCSI mid-layer ..." would certainly be an evidence to me in 2.4 tree 
with scsi_merge.c but today (with 2.6 tree) this was removed and even with google it's hard to track down what this 
DMA_CHUNK_SIZE size become?

Never the less, in parisc ccio-dma and sba_iommu there are:
         parisc_vmerge_boundary = IOVP_SIZE;
         parisc_vmerge_max_size = IOVP_SIZE * BITS_PER_LONG;

that would mean parisc_vmerge_max_size == DMA_CHUNK_SIZE if it was writen like for ia64 sba_iommu i.e. #define 
DMA_CHUNK_SIZE (BITS_PER_LONG*iovp_size).

Here numerically PAGE_SIZE == IOVP_SIZE, so it will not exhibit any issue if I replace DMA_CHUNK_SIZE by BIO_VMERGE_MAX_SIZE 
(include/asm-parisc/io.h:#define BIO_VMERGE_MAX_SIZE	parisc_vmerge_max_size). Obvioulsy that would help me to make the link 
between those stuff but what's up if somebody will try to manage parisc IOVP_SIZE > PAGE_SIZE?

Tia for your additional advise,
	J.

PS: may be would it also help me to figure out if (for ccio-dma) DMA_CHUNK_SIZE wouldn't be better chain_size?

Joel Soete wrote:
>> On Tue, Aug 05, 2008 at 03:21:32PM +0100, Joel Soete wrote:
>>>> On Thu, Jul 24, 2008 at 02:13:55PM +0100, Joel Soete wrote:
>>>>> Hello Grant, Kyle, et al.,
>>>>>
>>>>> Iirc the number of io_tlb enties on this u2/uturn ioa is of 256?
>>>> ISTR that u2 and uturn have different number of IO TLB entries.
>>>> But I don't recall how many exactly. Need the ERSs to look that up.
>>>>
>>> Well, I don't yet find the right way to get access, sorry.
>>>
>>>>> Because issue occur only when I do a lot of I/O on scsi disk (sometime
> request
>>>>> of mapping reach 128 pages), the idea was that it could induce some
> exceed of
>>>>> iotlb entries.
>>>>>
>>> [snip]
>>>> The number of "used" entries include "in flight" DMA and pci_consistent
>>> allocations. This generally isn't that many pages of RAM.
>>> Ok,
>>> But the idea was that if so much pdir entries was mapped in a so short time
>>> (1s), it should be also that the device will try to use them on the fly (just
>>> an hypothesis.)
>>> And so far as I can observe, the pb occurs when os operate on numerous huge
>>> data blocks (i.e. a tar -xvf of a linux tree into a single fs); so in this
>>> case it should be that the i/o device trigger many i/o tlb miss and may be
>>> much more i/o tlb entries then it can be freed?
>> Yes, that's certainly possible. 
>> But it's not the only behavior triggered by lots of in-flight IO traffic.
>>
> Ok 
> (that's just the simplest way I found to reproduce the day to day issue I
> encounter when I do an update of my system: this is not during the download of
> pkg but during 'Unpacking' step and that already broken my fs ;_()
> 
>>> What I observe also is that the pb become worse either with a system with few
>>> ram (like my c110 with 64M) or when I resurrect CCIO_MEM_RATIO (e.g. 2 or 4)
>>> on a system with 256Mb of RAM). In those last 2 cases the effect is the same:
>>>   a/ it makes the pdir_size and the number of pdir entries smaller
>> Yes.
>>
>>>   b/ as well for chainid_shift.
>> I've forgotten exactly the role of the chainid...I'd have to study
>> the code again.
>>
> no pb
>  
>>> This last point (b/) make me thought that it would also make smaller the
>>> number of 4k-byte per chainid and so for a same DMA block size it would
>>> required more iotlb entries.
>> No. The number of IO TLB entries (192 or something like that) and IO MMU
>> page size (4k) are both fixed.
>> Both are also completely unrelated to the size of the IO Pdir.
>>
> Totaly agree.
> But I wrongly explain my idea, my understanding was that chainid_shift allow
> to compute a chainid_mask to setup the U2 (in my case) iommu.
> After my reading of hp paper: "Hardware Cache Coherent Input/Output", I
> supposed (that's certainly where I am wrong) that this chainid_mask was a hint
> to instruct iommu the max size of an I/O data block (e.g. for the d380 with
> 256Mb I got chainid_shift = 19 [18 with ccio_mem_ratio = 2] and so chain_size
> = 2 ^ 19 = 128 * 4k pages (at least that's only what clear_io_tlb() does)). So
> for a big data block of 128*4k pages (I realy read such request of mapping)
> the scsi device would just need 1 io_tlb entry while it would request 2 (with
> ccio_mem_ratio = 2) and even 4 (with a c110 with only 64Mb).
> That's obviously  my own reading (without any coach ;-), sorry in advance if
> that's more confusing.
> 
>>> Obviously just speculation ;<).
>>>
>>> Even thought 3 things sure:
>>>   - issue occurs for huge I/O
>>>   - become worse with reduced iov_space_size (physical or logical)
>>>   - backport sba help a bit but doesn't fix issue
>> Yeah, those suggest IO TLB flushing is failing or IO Pdir isn't coherent.
>> There might be other things broken too.
>>
> Yes
> (with relayfs I tried to trace as much as I can but it have the default to not
> capture all messages and so just give me a overview of the execution path.
> Next step in my investigation: coalesce_chunks();
> but I am still looking for sg_list detail, though what kind of sg sump I could
> grab (after coalesce_chunks()):
> 
> this one is easy to understand:
> [0]- page_link: 0x10692980 (275327360), offset:0x0, length: 4096,
> iova(dma_address): 0xad0000, iova_length(dma_length): 40960.
> [1]- page_link: 0x10692960 (275327328), offset:0x0, length: 4096,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> [2]- page_link: 0x10692940 (275327296), offset:0x0, length: 4096,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> [3]- page_link: 0x10692920 (275327264), offset:0x0, length: 4096,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> [4]- page_link: 0x10692900 (275327232), offset:0x0, length: 4096,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> [5]- page_link: 0x106928e0 (275327200), offset:0x0, length: 4096,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> [6]- page_link: 0x106928c0 (275327168), offset:0x0, length: 4096,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> [7]- page_link: 0x10692a80 (275327616), offset:0x0, length: 4096,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> [8]- page_link: 0x10692c40 (275328064), offset:0x0, length: 4096,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> [9]- page_link: 0x10692c22 (275328034), offset:0x0, length: 4096,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> 
> i.e. 10 * 4k pages fused (coalesce?) in one dma data block of 40K using iova
> 0xad0000 (ok?)
> 
> but I don't yet understand following ones:
> [0]- page_link: 0x10681b40 (275258176), offset:0x0, length: 4096,
> iova(dma_address): 0x198000, iova_length(dma_length): 12288.
> [1]- page_link: 0x10681b20 (275258144), offset:0x0, length: 4096,
> iova(dma_address): 0x19bc00, iova_length(dma_length): 1024.
> [2]- page_link: 0x10681b00 (275258112), offset:0x0, length: 4096,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> [3]- page_link: 0x10681a82 (275257986), offset:0xc00, length: 1024,
> iova(dma_address): 0x8019bc00, iova_length(dma_length): 0.
> 
> why not fuse in only one block?
> 
> or this one:
> [0]- page_link: 0x10692f00 (275328768), offset:0x0, length: 12288,
> iova(dma_address): 0x1a30000, iova_length(dma_length): 49152.
> [1]- page_link: 0x10693060 (275329120), offset:0x0, length: 4096,
> iova(dma_address): 0x1a40000, iova_length(dma_length): 40960.
> [2]- page_link: 0x106930a0 (275329184), offset:0x0, length: 8192,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> [3]- page_link: 0x10693240 (275329600), offset:0x0, length: 24576,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> [4]- page_link: 0x106935e0 (275330528), offset:0x0, length: 20480,
> iova(dma_address): 0x81a40000, iova_length(dma_length): 0.
> [5]- page_link: 0x106937a0 (275330976), offset:0x0, length: 4096,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> [6]- page_link: 0x106937e2 (275331042), offset:0x0, length: 16384,
> iova(dma_address): 0x0, iova_length(dma_length): 0.
> 
> as the chainid_size is of 128*4k pages (=512k) why not coalescing all stuff in
> one data block? 
> Or it's not the place where scatterlist blocks are put together to form one
> contiguous block for dma access?
> (well my understanding of the beginning of sg list management was to put
> together scattered blocks at contiguous _physical_ address for dma access. But
> with those U2 we work now with _virtual_ address and index so am I a bit lost ;-)
>  
> But this next one are totally puzzling me:
> [0]- page_link: 0x10667600 (275150336), length: 1024, iova(dma_address):
> 0x800ae000, iova_length(dma_length): 1024.
> [1]- page_link: 0x1072e2e0 (275964640), length: 1024, iova(dma_address):
> 0x800afc00, iova_length(dma_length): 1024.
> [2]- page_link: 0x10676180 (275210624), length: 1024, iova(dma_address):
> 0x800b0800, iova_length(dma_length): 1024.
> [3]- page_link: 0x10541d00 (273947904), length: 1024, iova(dma_address):
> 0x800b1c00, iova_length(dma_length): 1024.
> [4]- page_link: 0x1072dd00 (275963136), length: 1024, iova(dma_address):
> 0x800b2800, iova_length(dma_length): 1024.
> [5]- page_link: 0x1072dd20 (275963168), length: 1024, iova(dma_address):
> 0x800b3800, iova_length(dma_length): 1024.
> [6]- page_link: 0x107284c0 (275940544), length: 1024, iova(dma_address):
> 0x800b4c00, iova_length(dma_length): 1024.
> 
> (sorry, here I don't have offsets but I doubt it would help me to understand
> why no gather occurs here?)
> 
> 
>>>>> Anyway, difference between those last 2 samples (718 - 444) = 274
> increase of
>>>>> io_pdir entries.
>>>> That's about right for a SCSI device since it can't have that much
>>>> IO in flight for one or two disks.
>>>>
>>> [snip]
>>>> Of course. The number of "used" entries in the IO Pdir has no direct
>>>> correlation to the number of "in use" IO TLB entries. IO TLB is fixed
>>>> size while the IO Pdir size can vary between boots.
>>>>
>>>>> Well as scatterlist is still puzzling me, I can still be confused between
>>>>> iommu and mmu pages mapping, sorry so in advance if it's yet another
> annoying
>>>>> comment.
>>>> IOMMU is an MMU for IO devices. MMU is the same thing for CPU.
>>>> Differences exist between those two. DMA is generally to larger
>>>> chunks/regions of RAM (256-2K bytes) while CPUs need to enforce
>>>> access rights (X/R/W) to memory and deal with cachelines or less.
>>>>
>>> (well I still have difficulties in the relationship between all those buffers
>>> which are caches and tlb and over that I/O DMA with its own set of cache and
>>> iotlb. Fortunately there are now good doc freely available and good engine to
>>> look for it, but it's not yet so easy to me)
>> Agreed - it's not easy.
>>
> Tx (when a master said 'it's not easy' that sincerely encourage me to continue
> my learning)
> 
> Again thanks a lot for your kind attention,
>     J.
> 
>> grant
>>
>>> Tx again for advises,
>>>     J.
>>>
>>>> hth,
>>>> grant
>>>> --
>> --
> 
> 
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From - Thu Nov 08 21:02:49 2018
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Thu, Sep 04, 2008 at 01:29:06PM -0400, Carlos O'Donell wrote:
> On Thu, Sep 4, 2008 at 12:04 PM, dann frazier <dannf@dannf.org> wrote:
> > If we continue to use libc6 as the package name as we're currently
> > doing, at some point libc will get upgraded to the NPTL interface and
> > things will start crashing immediately. I asked if we could just do
> > "whatever x86 did", and kyle said that we have a problem they didn't -
> > our data nptl/lt data structures are incompatible.
> >
> > We can deal with that to an extent by adding a second libc package,
> > e.g., libc6.1. But, jejb pointed out that, since most libs depend on
> > libc, we'll need to be able to have libs for both interfaces at the
> > same time to support a transitional upgrade - and that implies an
> > SONAME bump for every C library.
> >
> > Hopefully there's an easier way, but I don't know of one.
> 
> How far away is queeze?

There's no set timeframe - but I think we can easily assume it will
be at least 1 year after lenny, which is frozen for release now.

> I have to go write some, code, and test some changes, and get back to
> the list with some options.
> 
> Namely:
> 
> Is it possible to change the pthread structures such that writing the
> compatibility code is easy?
> - Leave padding where the old lock words were and detect statically
> initialized locks by looking at these words?
> - Does this break Gentoo? I think they just emerge world.
> - Does this break Ubuntu hppa? Probably.

thanks Carlos

-- 
dann frazier

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From - Thu Nov 08 21:02:49 2018
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On Thu, 2008-09-04 at 10:04 -0600, dann frazier wrote:
> On Thu, Sep 04, 2008 at 11:31:52AM -0400, Carlos O'Donell wrote:
> > On Thu, Sep 4, 2008 at 11:23 AM, dann frazier <dannf@dannf.org> wrote:
> > > I've already done the initial bootstrapping and John Wright and I have
> > > a buildd actively rebuilding bits against sid. We're rsyncing the
> > > results out to here:
> > >  http://parisc-linux.org/~dannf/hppa-nptl-mirror/unstable/
> > >
> > > Suffice to say, the rebuild is going fairly smoothly. But, I wonder
> > > how we're going to transition systems over to an NPTL userspace. Does
> > > anyone have a plan for that?
> > 
> > Isn't this the responsibility of the package manager?
> > 
> > Why wouldn't apt-get dist-upgrade work?
> 
> We had a discussion about this on IRC, a while back, let me see if I
> can recap...
> 
> If we continue to use libc6 as the package name as we're currently
> doing, at some point libc will get upgraded to the NPTL interface and
> things will start crashing immediately. I asked if we could just do
> "whatever x86 did", and kyle said that we have a problem they didn't -
> our data nptl/lt data structures are incompatible.
> 
> We can deal with that to an extent by adding a second libc package,
> e.g., libc6.1. But, jejb pointed out that, since most libs depend on
> libc, we'll need to be able to have libs for both interfaces at the
> same time to support a transitional upgrade - and that implies an
> SONAME bump for every C library.
> 
> Hopefully there's an easier way, but I don't know of one.

Can we go via an intermediate library that would coexist with current
glibc?  Something like libc6-nptl, then we do the transitional update
with the tools and other libraries moving over to libc6-nptl, then the
final piece of the upgrade is libc6 going to nptl based libc6.1 and we
remove the transitional libc6-nptl?  This type of flip will have to be
done via ld.so.conf magic, but it should be doable.

James


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Subject: Re: __kernel_suseconds_t is int on PA-RISC (and SPARC64)?
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On Tue, 26 Aug 2008, Helge Deller wrote:
> Geert Uytterhoeven wrote:
> > Apparently __kernel_suseconds_t is `int' on PA-RISC (and on SPARC64),
> > while it's `long' on all other platforms.
> > 
> > Is there a specific reason for that?
> 
> I don't know for sure, but arch/parisc/kernel/syscall_table.S states:
> /* even though manpage says struct timeval contains longs, ours has
>  * time_t and suseconds_t -- both of which are safe wide/narrow */
>    ENTRY_COMP(setitimer)
> 
> So it was probably chosen to be int so that it can be easily used in 32- and
> 64bit kernels (or compat code).
> 
> > This causes compiler warnings in the HP SDC Real Time Clock driver,
> > which is shared between PA-RISC and m68k:

Here's a patch to fix the compiler warnings. Is this OK for PA-RISC?

SUbject: [PATCH] HP input: kill warnings due to suseconds_t differences

Kill compiler warnings related to printf() formats in the input drivers for
various HP9000 machines, which are shared between PA-RISC (suseconds_t is int)
and m68k (suseconds_t is long). As both are 32-bit, it's safe to cast to int.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 drivers/input/misc/hp_sdc_rtc.c |   10 +++++-----
 drivers/input/serio/hp_sdc.c    |    2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

--- a/drivers/input/misc/hp_sdc_rtc.c
+++ b/drivers/input/misc/hp_sdc_rtc.c
@@ -458,35 +458,35 @@ static int hp_sdc_rtc_proc_output (char 
 		p += sprintf(p, "i8042 rtc\t: READ FAILED!\n");
 	} else {
 		p += sprintf(p, "i8042 rtc\t: %ld.%02d seconds\n", 
-			     tv.tv_sec, tv.tv_usec/1000);
+			     tv.tv_sec, (int)tv.tv_usec/1000);
 	}
 
 	if (hp_sdc_rtc_read_fhs(&tv)) {
 		p += sprintf(p, "handshake\t: READ FAILED!\n");
 	} else {
         	p += sprintf(p, "handshake\t: %ld.%02d seconds\n", 
-			     tv.tv_sec, tv.tv_usec/1000);
+			     tv.tv_sec, (int)tv.tv_usec/1000);
 	}
 
 	if (hp_sdc_rtc_read_mt(&tv)) {
 		p += sprintf(p, "alarm\t\t: READ FAILED!\n");
 	} else {
 		p += sprintf(p, "alarm\t\t: %ld.%02d seconds\n", 
-			     tv.tv_sec, tv.tv_usec/1000);
+			     tv.tv_sec, (int)tv.tv_usec/1000);
 	}
 
 	if (hp_sdc_rtc_read_dt(&tv)) {
 		p += sprintf(p, "delay\t\t: READ FAILED!\n");
 	} else {
 		p += sprintf(p, "delay\t\t: %ld.%02d seconds\n", 
-			     tv.tv_sec, tv.tv_usec/1000);
+			     tv.tv_sec, (int)tv.tv_usec/1000);
 	}
 
 	if (hp_sdc_rtc_read_ct(&tv)) {
 		p += sprintf(p, "periodic\t: READ FAILED!\n");
 	} else {
 		p += sprintf(p, "periodic\t: %ld.%02d seconds\n", 
-			     tv.tv_sec, tv.tv_usec/1000);
+			     tv.tv_sec, (int)tv.tv_usec/1000);
 	}
 
         p += sprintf(p,
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -323,7 +323,7 @@ static void hp_sdc_tasklet(unsigned long
 			 * it back to the application. and be less verbose.
 			 */
 			printk(KERN_WARNING PREFIX "read timeout (%ius)!\n",
-			       tv.tv_usec - hp_sdc.rtv.tv_usec);
+			       (int)(tv.tv_usec - hp_sdc.rtv.tv_usec));
 			curr->idx += hp_sdc.rqty;
 			hp_sdc.rqty = 0;
 			tmp = curr->seq[curr->actidx];

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

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__kernel_time_t is always long on PA-RISC, irrespective of CONFIG_64BIT

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 include/asm-parisc/posix_types.h |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/include/asm-parisc/posix_types.h
+++ b/include/asm-parisc/posix_types.h
@@ -24,13 +24,12 @@ typedef int			__kernel_daddr_t;
 typedef unsigned long		__kernel_size_t;
 typedef long			__kernel_ssize_t;
 typedef long			__kernel_ptrdiff_t;
-typedef long			__kernel_time_t;
 #else
 typedef unsigned int		__kernel_size_t;
 typedef int			__kernel_ssize_t;
 typedef int			__kernel_ptrdiff_t;
-typedef long			__kernel_time_t;
 #endif
+typedef long			__kernel_time_t;
 typedef char *			__kernel_caddr_t;
 
 typedef unsigned short		__kernel_uid16_t;

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: __kernel_suseconds_t is int on PA-RISC (and SPARC64)?
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Geert Uytterhoeven wrote:
> On Tue, 26 Aug 2008, Helge Deller wrote:
>> Geert Uytterhoeven wrote:
>>> Apparently __kernel_suseconds_t is `int' on PA-RISC (and on SPARC64),
>>> while it's `long' on all other platforms.
>>>
>>> Is there a specific reason for that?
>> I don't know for sure, but arch/parisc/kernel/syscall_table.S states:
>> /* even though manpage says struct timeval contains longs, ours has
>>  * time_t and suseconds_t -- both of which are safe wide/narrow */
>>    ENTRY_COMP(setitimer)
>>
>> So it was probably chosen to be int so that it can be easily used in 32- and
>> 64bit kernels (or compat code).
>>
>>> This causes compiler warnings in the HP SDC Real Time Clock driver,
>>> which is shared between PA-RISC and m68k:
> 
> Here's a patch to fix the compiler warnings. Is this OK for PA-RISC?
> 
> SUbject: [PATCH] HP input: kill warnings due to suseconds_t differences
> 
> Kill compiler warnings related to printf() formats in the input drivers for
> various HP9000 machines, which are shared between PA-RISC (suseconds_t is int)
> and m68k (suseconds_t is long). As both are 32-bit, it's safe to cast to int.
> 
> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

Thanks Geert.
Tested and OK for PA-RISC.

Acked-by: Helge Deller <deller@gmx.de>


> ---
>  drivers/input/misc/hp_sdc_rtc.c |   10 +++++-----
>  drivers/input/serio/hp_sdc.c    |    2 +-
>  2 files changed, 6 insertions(+), 6 deletions(-)
> 
> --- a/drivers/input/misc/hp_sdc_rtc.c
> +++ b/drivers/input/misc/hp_sdc_rtc.c
> @@ -458,35 +458,35 @@ static int hp_sdc_rtc_proc_output (char 
>  		p += sprintf(p, "i8042 rtc\t: READ FAILED!\n");
>  	} else {
>  		p += sprintf(p, "i8042 rtc\t: %ld.%02d seconds\n", 
> -			     tv.tv_sec, tv.tv_usec/1000);
> +			     tv.tv_sec, (int)tv.tv_usec/1000);
>  	}
>  
>  	if (hp_sdc_rtc_read_fhs(&tv)) {
>  		p += sprintf(p, "handshake\t: READ FAILED!\n");
>  	} else {
>          	p += sprintf(p, "handshake\t: %ld.%02d seconds\n", 
> -			     tv.tv_sec, tv.tv_usec/1000);
> +			     tv.tv_sec, (int)tv.tv_usec/1000);
>  	}
>  
>  	if (hp_sdc_rtc_read_mt(&tv)) {
>  		p += sprintf(p, "alarm\t\t: READ FAILED!\n");
>  	} else {
>  		p += sprintf(p, "alarm\t\t: %ld.%02d seconds\n", 
> -			     tv.tv_sec, tv.tv_usec/1000);
> +			     tv.tv_sec, (int)tv.tv_usec/1000);
>  	}
>  
>  	if (hp_sdc_rtc_read_dt(&tv)) {
>  		p += sprintf(p, "delay\t\t: READ FAILED!\n");
>  	} else {
>  		p += sprintf(p, "delay\t\t: %ld.%02d seconds\n", 
> -			     tv.tv_sec, tv.tv_usec/1000);
> +			     tv.tv_sec, (int)tv.tv_usec/1000);
>  	}
>  
>  	if (hp_sdc_rtc_read_ct(&tv)) {
>  		p += sprintf(p, "periodic\t: READ FAILED!\n");
>  	} else {
>  		p += sprintf(p, "periodic\t: %ld.%02d seconds\n", 
> -			     tv.tv_sec, tv.tv_usec/1000);
> +			     tv.tv_sec, (int)tv.tv_usec/1000);
>  	}
>  
>          p += sprintf(p,
> --- a/drivers/input/serio/hp_sdc.c
> +++ b/drivers/input/serio/hp_sdc.c
> @@ -323,7 +323,7 @@ static void hp_sdc_tasklet(unsigned long
>  			 * it back to the application. and be less verbose.
>  			 */
>  			printk(KERN_WARNING PREFIX "read timeout (%ius)!\n",
> -			       tv.tv_usec - hp_sdc.rtv.tv_usec);
> +			       (int)(tv.tv_usec - hp_sdc.rtv.tv_usec));
>  			curr->idx += hp_sdc.rqty;
>  			hp_sdc.rqty = 0;
>  			tmp = curr->seq[curr->actidx];
> 
> Gr{oetje,eeting}s,
> 
> 						Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> 							    -- Linus Torvalds
> 

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	Parisc List <linux-parisc@vger.kernel.org>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/723>

> Make dereference_function_descriptor() more accommodating by allowing
> architecture overrides.  I put the three overrides (for parisc64, ppc64
> and ia64) in arch/kernel/module.c because that's where the kernel
> internal linker which knows how to deal with function descriptors sits.
> 
> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>


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>> Make dereference_function_descriptor() more accommodating by allowing
>> architecture overrides.  I put the three overrides (for parisc64, ppc64
>> and ia64) in arch/kernel/module.c because that's where the kernel
>> internal linker which knows how to deal with function descriptors sits.
>>
>> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
>
> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

ia64 bits still build, boot and work too.

Acked-by: Tony Luck <tony.luck@intel.com>

-Tony
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From: Domenico Andreoli <cavok@dandreoli.com>
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Cc: Carlos O'Donell <carlos@systemhalted.org>,
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To: dann frazier <dannf@dannf.org>
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On Thu, Sep 04, 2008 at 10:04:07AM -0600, dann frazier wrote:
> On Thu, Sep 04, 2008 at 11:31:52AM -0400, Carlos O'Donell wrote:
> > On Thu, Sep 4, 2008 at 11:23 AM, dann frazier <dannf@dannf.org> wrote:
> > > I've already done the initial bootstrapping and John Wright and I have
> > > a buildd actively rebuilding bits against sid. We're rsyncing the
> > > results out to here:
> > >  http://parisc-linux.org/~dannf/hppa-nptl-mirror/unstable/
> > >
> > > Suffice to say, the rebuild is going fairly smoothly. But, I wonder
> > > how we're going to transition systems over to an NPTL userspace. Does
> > > anyone have a plan for that?
> > 
> > Isn't this the responsibility of the package manager?
> > 
> > Why wouldn't apt-get dist-upgrade work?
> 
> We had a discussion about this on IRC, a while back, let me see if I
> can recap...
> 
> If we continue to use libc6 as the package name as we're currently
> doing, at some point libc will get upgraded to the NPTL interface and
> things will start crashing immediately. I asked if we could just do
> "whatever x86 did", and kyle said that we have a problem they didn't -
> our data nptl/lt data structures are incompatible.
> 
> We can deal with that to an extent by adding a second libc package,
> e.g., libc6.1. But, jejb pointed out that, since most libs depend on
> libc, we'll need to be able to have libs for both interfaces at the
> same time to support a transitional upgrade - and that implies an
> SONAME bump for every C library.

I am not understanding why "we'll need to be able to have libs for both
interfaces at the same time to support a transitional upgrade".

Suppose the new libc6 (LT) is a compatibility wrapper around new libc6.1
(NPTL). The remainder is really an apt's job.

cheers,
Domenico

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From - Thu Nov 08 21:02:49 2018
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On Thu, Sep 04, 2008 at 12:52:44PM -0500, James Bottomley wrote:
> On Thu, 2008-09-04 at 10:04 -0600, dann frazier wrote:
> > 
> > We had a discussion about this on IRC, a while back, let me see if I
> > can recap...
> > 
> > If we continue to use libc6 as the package name as we're currently
> > doing, at some point libc will get upgraded to the NPTL interface and
> > things will start crashing immediately. I asked if we could just do
> > "whatever x86 did", and kyle said that we have a problem they didn't -
> > our data nptl/lt data structures are incompatible.
> > 
> > We can deal with that to an extent by adding a second libc package,
> > e.g., libc6.1. But, jejb pointed out that, since most libs depend on
> > libc, we'll need to be able to have libs for both interfaces at the
> > same time to support a transitional upgrade - and that implies an
> > SONAME bump for every C library.
> > 
> > Hopefully there's an easier way, but I don't know of one.
> 
> Can we go via an intermediate library that would coexist with current
> glibc?  Something like libc6-nptl, then we do the transitional update
> with the tools and other libraries moving over to libc6-nptl, then the
> final piece of the upgrade is libc6 going to nptl based libc6.1 and we
> remove the transitional libc6-nptl?  This type of flip will have to be
> done via ld.so.conf magic, but it should be doable.

Is it possible to export two different symbols based on the version
used at link time?

This way it would remain libc6, all the pre-existing binaries would use
the older interface wrapped around the new one. Of course newly built
packages would link with the new interface.

ciao,
Domenico

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On Thu, Sep 4, 2008 at 1:52 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> Can we go via an intermediate library that would coexist with current
> glibc?  Something like libc6-nptl, then we do the transitional update
> with the tools and other libraries moving over to libc6-nptl, then the
> final piece of the upgrade is libc6 going to nptl based libc6.1 and we
> remove the transitional libc6-nptl?  This type of flip will have to be
> done via ld.so.conf magic, but it should be doable.

No, due to library-to-library dependencies you have the same problem.
You would either have to rebuild *all* the libraries or continue
splitting each library into two packages lib and lib-nptl.

Cheers,
Carlos.
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From - Thu Nov 08 21:02:49 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Cc: dann frazier <dannf@dannf.org>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Fri, 2008-09-05 at 08:17 -0400, Carlos O'Donell wrote:
> On Thu, Sep 4, 2008 at 1:52 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> > Can we go via an intermediate library that would coexist with current
> > glibc?  Something like libc6-nptl, then we do the transitional update
> > with the tools and other libraries moving over to libc6-nptl, then the
> > final piece of the upgrade is libc6 going to nptl based libc6.1 and we
> > remove the transitional libc6-nptl?  This type of flip will have to be
> > done via ld.so.conf magic, but it should be doable.
> 
> No, due to library-to-library dependencies you have the same problem.
> You would either have to rebuild *all* the libraries or continue
> splitting each library into two packages lib and lib-nptl.

We are going to have to rebuild all the libraries, that's not an option
because of the ABI change.

The problem is not to avoid this, but to find a way of doing an online
upgrade.  The real problem we have to avoid is breaking system tools
that are required to perform the upgrade in the intermediate steps.  I
don't rule out that will require us to pull this trick with some
libraries in addition to libc, but I don't think it will be all of them.
Just doing libc will probably fix the majority of the issues, though.

James


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From - Thu Nov 08 21:02:49 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: NTPL transition
Date: Fri, 5 Sep 2008 10:20:14 -0400
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Cc: Carlos O'Donell <carlos@systemhalted.org>,
	dann frazier <dannf@dannf.org>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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[Disclaimer: Grain of salt and all that other nonsense, I am pretty
 ignorant about why this is so difficult to handle.]

On Fri, Sep 05, 2008 at 09:07:06AM -0500, James Bottomley wrote:
> > No, due to library-to-library dependencies you have the same problem.
> > You would either have to rebuild *all* the libraries or continue
> > splitting each library into two packages lib and lib-nptl.
> 
> We are going to have to rebuild all the libraries, that's not an option
> because of the ABI change.
> 
> The problem is not to avoid this, but to find a way of doing an online
> upgrade.  The real problem we have to avoid is breaking system tools
> that are required to perform the upgrade in the intermediate steps.  I
> don't rule out that will require us to pull this trick with some
> libraries in addition to libc, but I don't think it will be all of them.
> Just doing libc will probably fix the majority of the issues, though.
> 

I'm probably missing something huge here, but why can't we just put a
sentinel value into the locks, make them equal sized, and use it as a
lock versioning field?

Since our locks are 16-bytes wide traditionally, that leaves us a
bunch of places we could cram it.

There's 3 cases I can think of:
	1 - uninitialized static lock:
		unlocked everywhere else and parisc-nptl (0), locked
		on parisc-lt.

	2 - initialized lock:
		unlocked everywhere else and parisc-*, we end up with
		4 32-bit values each containing a '1' on -lt. presumably
		just 0 on -nptl.

	3 - uninitialized dynamic lock:
		broken everywhere, not really a particular problem.

If we just crammed a "new lock" value (say, 0xdeadbeef or something.)
into the next word of the lock mod 4[1], and assumed any lock without that
sentinel was a linuxthreads lock... 

I mean, aside from wasting 12-bytes of lock that will never be touched
in the -nptl case, it seems like the easiest course...

Since the -lt locks will LDCW the cacheline, it would never be valid to
have an -lt lock with the sentinel set.

Just a thought, but perhaps I am oversimplifying the issue.
	Kyle

1. I mean, if the lock entry is lock[0], we use lock[1], if lock[3], we
	use lock[0].
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From - Thu Nov 08 21:02:49 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: NTPL transition
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On Fri, Sep 5, 2008 at 10:20 AM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> I'm probably missing something huge here, but why can't we just put a
> sentinel value into the locks, make them equal sized, and use it as a
> lock versioning field?

No you aren't missing anything, this is what I meant by "I have to go
write some, code" in my other post.

> Since our locks are 16-bytes wide traditionally, that leaves us a
> bunch of places we could cram it.
>
> There's 3 cases I can think of:
>        1 - uninitialized static lock:
>                unlocked everywhere else and parisc-nptl (0), locked
>                on parisc-lt.

According to POSIX you may only initialize a mutex to an unlocked
state. So we can just treat an uninitialized parisc-lt lock as it it
were an uninitialized parisc-nptl lock. This is the case that "works"
on x86, but is not portable, nor is it correct under POSIX. We want
the same behaviour as x86 so that we can avoid tracking down the bugs
related to uninitialized static locks.

>        2 - initialized lock:
>                unlocked everywhere else and parisc-*, we end up with
>                4 32-bit values each containing a '1' on -lt. presumably
>                just 0 on -nptl.

To be technically correct this is a "static initialized lock" using
something like PTHREAD_MUTEX_INIT. We must version every function that
could have had a statically initialized lock, and at the start of said
function, check the lock words and reset as appropriate. This involves
a) Detect parisc-lt {1,1,1,1} and convert that to {0,0,0,0} b) If the
last word in the lock[4] is zero then do nothing. Note that with
parisc-nptl only the first word is used for locking and it doesn't
have to be more than int aligned.

>        3 - uninitialized dynamic lock:
>                broken everywhere, not really a particular problem.

All the broken packages that memset locks to zero just work on x86 but
not parisc-lt. The parisc porters have to track these down and fix
them. This is one of the reasons we changed the lock behaviour with
the kernel helper. This case should *just work* on parisc-nptl, like
on x86.

> If we just crammed a "new lock" value (say, 0xdeadbeef or something.)
> into the next word of the lock mod 4[1], and assumed any lock without that
> sentinel was a linuxthreads lock...

It's easier than that, you only have to detect the all 1's case. The
all zeroes case IMO can be treated like an uninitialized parisc-nptl
lock.

> I mean, aside from wasting 12-bytes of lock that will never be touched
> in the -nptl case, it seems like the easiest course...
>
> Since the -lt locks will LDCW the cacheline, it would never be valid to
> have an -lt lock with the sentinel set.
>
> Just a thought, but perhaps I am oversimplifying the issue.

It's a good thought.

Cheers,
Carlos.
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> To be technically correct this is a "static initialized lock" using
> something like PTHREAD_MUTEX_INIT. We must version every function that
> could have had a statically initialized lock, and at the start of said
> function, check the lock words and reset as appropriate. This involves
> a) Detect parisc-lt {1,1,1,1} and convert that to {0,0,0,0} b) If the
> last word in the lock[4] is zero then do nothing. Note that with
> parisc-nptl only the first word is used for locking and it doesn't
> have to be more than int aligned.

IMHO, there is no need for versioning. Moreover it wouldn't be sufficient.

Imagine function in a shared library foo which takes as argument 
pthread_mutex_t and does usual:

 	pthread_mutex_lock()
 	do some work
 	pthread_mutex_unlock()

And a program bar, which uses foo. Inside bar is a static initialized 
lock. The foo might be (re)compiled against NPTL, while bar would be 
still compiled against LT. Therefore check_and_reset() should be called as 
long as any installed (debian) package have not been recompiled against 
NPTL. The overhead of check_and_reset() looks very small, it should be no 
problem at all. The harder part is to determine each place, where
check_and_reset() should be called. It have to be in all places,
where static initialized lock might be passed for the 1st time,
i.e. it should be in  pthread_mutex_lock(), but not in
pthread_mutex_unlock().

Petr
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From - Thu Nov 08 21:02:50 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Debian parisc config for 2.6.26 broke the real time clock
Date: Sat, 06 Sep 2008 10:06:26 -0500
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Parisc is a CONFIG_GEN_RTC architecture (we use the generic real time
clock driver).  Starting with 2.6.26, debian is now enabling
CONFIG_RTC_CLASS (for platforms with specific RTC drivers) which
disables CONFIG_GEN_RTC and means that hwclock (and ntp tracking) are
broken on parisc with debian kernels 2.6.26 and above.

All of the arch/parisc/config files get this right, so someone at debian
must have screwed up somehow.  The config option CONFIG_RTC_CLASS must
be set to 'N' for all parisc systems.  I'd suggest checking the debian
kernel configs against the in-tree default files to see if there are any
other cockups like this.

James


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On Sat, Sep 6, 2008 at 4:24 AM, Petr Salinger <Petr.Salinger@seznam.cz> wrote:
> IMHO, there is no need for versioning. Moreover it wouldn't be sufficient.

You must versioning the affected interfaces, otherwise you will never
be able to remove the compatibility code.

> Imagine function in a shared library foo which takes as argument
> pthread_mutex_t and does usual:
>
>        pthread_mutex_lock()
>        do some work
>        pthread_mutex_unlock()
>
> And a program bar, which uses foo. Inside bar is a static initialized lock.
> The foo might be (re)compiled against NPTL, while bar would be still
> compiled against LT. Therefore check_and_reset() should be called as long as
> any installed (debian) package have not been recompiled against NPTL. The
> overhead of check_and_reset() looks very small, it should be no problem at
> all. The harder part is to determine each place, where
> check_and_reset() should be called. It have to be in all places,
> where static initialized lock might be passed for the 1st time,
> i.e. it should be in  pthread_mutex_lock(), but not in
> pthread_mutex_unlock().

Yes, certainly, this is a valid case.

Any function that manipulates a changed structure needs to be versioned.

Eventually, one day, debian hppa will configure glibc with
--enable-oldest-abi at a high enough value that the compat code will
be dropped (because we have proved no package needs it and we have an
upgrade path).

Do you have any other concerns?

Cheers,
Carlos.
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>> IMHO, there is no need for versioning. Moreover it wouldn't be sufficient.
>
> You must versioning the affected interfaces, otherwise you will never
> be able to remove the compatibility code.
>
>> Imagine function in a shared library foo which takes as argument
>> pthread_mutex_t and does usual:
>>
>>        pthread_mutex_lock()
>>        do some work
>>        pthread_mutex_unlock()
>>
>> And a program bar, which uses foo. Inside bar is a static initialized lock.
>> The foo might be (re)compiled against NPTL, while bar would be still
>> compiled against LT. Therefore check_and_reset() should be called as long as
>> any installed (debian) package have not been recompiled against NPTL. The
>> overhead of check_and_reset() looks very small, it should be no problem at
>> all. The harder part is to determine each place, where
>> check_and_reset() should be called. It have to be in all places,
>> where static initialized lock might be passed for the 1st time,
>> i.e. it should be in  pthread_mutex_lock(), but not in
>> pthread_mutex_unlock().
>
> Yes, certainly, this is a valid case.
>
> Any function that manipulates a changed structure needs to be versioned.
>
> Eventually, one day, debian hppa will configure glibc with
> --enable-oldest-abi at a high enough value that the compat code will
> be dropped (because we have proved no package needs it and we have an
> upgrade path).
>
> Do you have any other concerns?

The versioning does not help here, i.e. in the above case
bar will not reference any old (linuxthread variant) function,
therefore it would look like there is no need for compat code, even though 
it will be still needed.

For dropping compat code, you have to be sure any package is not compiled 
against old glibc - it can be determined in debian from Depends: line
in binary package control file. The strategy for upgrade might be easy;
For lenny+1 include compat code, but make sure all of lenny+1 released
packages are build against NPTL variant. The compact code can be dropped
just after lenny+1 release.

It looks like one compare will say it is not LT initialized lock,
this path might be really fast.
IMHO, even including such compat code forever will be easier compared to 
transition all libraries ...

The check_and_reset() should be reasonably "atomic" - two threads might 
call pthread_mutex_lock() on static LT initialized lock in the same time.

What are the difference between LT and NPTL definition of pthread_mutex_t.
Only 3 unused ints in pthread_mutex_t ?

Petr
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Xref: news.gmane.org gmane.linux.ports.parisc:735 gmane.linux.debian.ports.hppa:5492
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On Sat, Sep 6, 2008 at 4:16 PM, Petr Salinger <Petr.Salinger@seznam.cz> wrote:
>> Do you have any other concerns?
>
> The versioning does not help here, i.e. in the above case
> bar will not reference any old (linuxthread variant) function,
> therefore it would look like there is no need for compat code, even though
> it will be still needed.

Yes, I agree with you, but you still need symbol versioining.

The point of versioning the symbols is so that in the future when you
run an old program you will get the error "Undefined reference to
symbol foo" instead of a random crash. So the procedure is this:

1. Create an old compat function at version 2.0, which is only
compiled if oldest ABI is 2.0.
2. Create a new function at version 2.8, which *also* contains compat
code wrapped in "#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_8)".

With oldest-abi at 2.0, all functions will have the compat checks
enabled, allowing mixing of old applications and new libraries.
Eventually when you build with oldest ABI 2.8, the 2.0 version
functions are gone, the compat code in 2.8 version functions is
dropped, and everything is working optimally. When you run an old
application it complains "Undefined reference to symbol foo", and
rightly so because we only support the new ABI.

Do you see any problem with that?

> For dropping compat code, you have to be sure any package is not compiled
> against old glibc - it can be determined in debian from Depends: line
> in binary package control file. The strategy for upgrade might be easy;
> For lenny+1 include compat code, but make sure all of lenny+1 released
> packages are build against NPTL variant. The compact code can be dropped
> just after lenny+1 release.

Yes, that's probably a good procedure.

However, you can't determine it from the depends line because libc is
an implicit depend?

I believe you have to analyze the binaries in the archive.

> It looks like one compare will say it is not LT initialized lock,
> this path might be really fast.
> IMHO, even including such compat code forever will be easier compared to
> transition all libraries ...

Yes, I agree.

> The check_and_reset() should be reasonably "atomic" - two threads might call
> pthread_mutex_lock() on static LT initialized lock in the same time.

It will be 100% atomic, we will use hppa's load-and-clear-word
instruction to analyze the contents of the old lock structure.

> What are the difference between LT and NPTL definition of pthread_mutex_t.
> Only 3 unused ints in pthread_mutex_t ?

A function that takes as an argument a structure that has no padding
left for a new 4-byte int aligned lock and contains a statically
initialized __atomic_lock_t that we must reuse for our lock.

We must review these structures for possible padding to use as a lock word:
pthread_cond_t
pthread_mutex_t
pthread_rwlock_t
pthread_barrier_t
pthread_spinlock_t

>From this list, only those that have static initializers may cause an
ABI issue, namely:
PTHREAD_COND_INITIALIZER
PTHREAD_MUTEX_INITIALIZER
PTHREAD_RWLOCK_INITIALIZER (Deleted in issue 6)

Lastly the complete list of functions that may need compat:
pthread_cond_timedwait
pthread_cond_wait
pthread_mutex_destroy
pthread_mutex_getprioceiling
pthread_mutex_init
pthread_mutex_lock
pthread_mutex_setprioceiling
pthread_mutex_timedlock
pthread_mutex_trylock
pthread_mutex_unlock
pthread_cond_broadcast
pthread_cond_destroy
pthread_cond_init
pthread_cond_signal
pthread_cond_timedwait
pthread_cond_wait
pthread_rwlock_destroy
pthread_rwlock_init
pthread_rwlock_rdlock
pthread_rwlock_timedrdlock
pthread_rwlock_timedwrlock
pthread_rwlock_tryrdlock
pthread_rwlock_trywrlock
pthread_rwlock_unlock
pthread_rwlock_wrlock

Please feel free to review my list.

I based this list on the data here:
http://www.opengroup.org/onlinepubs/009695399/

Cheers,
Carlos.
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From - Thu Nov 08 21:02:50 2018
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From: Joel Soete <soete.joel@scarlet.be>
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Subject: last git update of parisc-2.6.git failed again to merge???
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Hello Kyle,

Just fyi, my latest 'git pull' (this Sep 4 2008 around 8h gmt) of your tree 
<git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git> (again) failed to merge ;_(
 From git://git.eu.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
  + 07f3b22...2c41408 master     -> origin/master  (forced update)
warning: too many files, skipping inexact rename detection
CONFLICT (rename/delete): Renamed include/asm-parisc/pdc.h->arch/parisc/include/asm/pdc.h in HEAD and deleted in 
2c41408cff1c81a5fe6980862f00e370a129c302
CONFLICT (rename/delete): Renamed include/asm-parisc/ropes.h->arch/parisc/include/asm/ropes.h in HEAD and deleted in 
2c41408cff1c81a5fe6980862f00e370a129c302
CONFLICT (rename/delete): Renamed include/asm-parisc/unistd.h->arch/parisc/include/asm/unistd.h in HEAD and deleted in 
2c41408cff1c81a5fe6980862f00e370a129c302
Removed Documentation/cli-sti-removal.txt
Removed Documentation/filesystems/configfs/configfs_example.c
Removed Documentation/powerpc/SBC8260_memory_mapping.txt
[snip]
Removed include/asm-sh/ubc.h
Removed include/asm-sh/watchdog.h
Removed include/linux/harrier_defs.h
Removed include/media/audiochip.h
Automatic merge failed; fix conflicts and then commit the result.

This was done with:
# git --version
git version 1.5.6.5

Any idea of what would I do better then re-clone tree
# git clone git://git.eu.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git parisc-2.6
Initialized empty Git repository in /Develop/parisc-linux/Kyle/parisc-2.6/.git/
remote: Counting objects: 895134, done.
remote: Compressing objects: 100% (147414/147414), done.
remote: Total 895134 (delta 746373), reused 895072 (delta 746330)
Receiving objects: 100% (895134/895134), 213.04 MiB | 94 KiB/s, done.
Resolving deltas: 100% (746373/746373), done.
Checking out files: 100% (24348/24348), done.


Tia,
	J.

PS: Nothing I can find with google, help me to fix this issue.
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From - Thu Nov 08 21:02:50 2018
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Subject: Re: last git update of parisc-2.6.git failed again to merge???
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On Sun, Sep 07, 2008 at 11:51:26AM +0000, Joel Soete wrote:
> Hello Kyle,
>

The history is non-linear, because I rebased it:

git fetch origin; git reset --hard origin/master

while on your master branch should resolve it. But be careful, it
will remove any of your local changes.
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: Debian parisc config for 2.6.26 broke the real time clock
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On Sat, 2008-09-06 at 10:06 -0500, James Bottomley wrote:
> Parisc is a CONFIG_GEN_RTC architecture (we use the generic real time
> clock driver).  Starting with 2.6.26, debian is now enabling
> CONFIG_RTC_CLASS (for platforms with specific RTC drivers) which
> disables CONFIG_GEN_RTC and means that hwclock (and ntp tracking) are
> broken on parisc with debian kernels 2.6.26 and above.
> 
> All of the arch/parisc/config files get this right, so someone at debian
> must have screwed up somehow.  The config option CONFIG_RTC_CLASS must
> be set to 'N' for all parisc systems.  I'd suggest checking the debian
> kernel configs against the in-tree default files to see if there are any
> other cockups like this.

OK, I dug into this.  The problem with debian is that CONFIG_RTC_CLASS
is set in the generic configuration and from 2.6.26 onwards
CONFIG_GEN_RTC is overridden by this (that's the reason we don't see it
on our local configs).  I'm not entirely sure what the correct fix is.
It looks like GEN_RTC is being deprecated, so it might be to move to
RTC_CLASS.  I think the best thing is for me to try to put an arch
override for RTC_CLASS and see what the reaction is.

In the meantime, you can get a working debian kernel here:

http://parisc-linux.org/~jejb/linux-image-2.6.26-1-parisc_2.6.26-4+b1_hppa.deb

James


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Cc: linux-kernel <linux-kernel@vger.kernel.org>,
	Parisc List <linux-parisc@vger.kernel.org>,
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As of 2.6.26, most distribution kernels for PARISC are coming with the
wrong RTC infrastructure enabled, meaning that userland can no longer
get at the RTC, so all our parisc clocks are drifting.

The fault is this patch:

commit c750090085f260503d8beec1c73c4d2e4fe93628
Author: David Brownell <david-b@pacbell.net>
Date:   Mon Apr 28 02:11:52 2008 -0700

    rtc: avoid legacy drivers with generic framework

Which makes drivers/rtc take precedence over the generic rtc.  However,
for parisc we only have the generic rtc, so in essence this turns off
our ability to access the rtc.  Put it back again by making RTC_CLASS
unselectable if the architecture is parisc.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

---

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 9a9755c..472fb19 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -8,7 +8,7 @@ config RTC_LIB
 menuconfig RTC_CLASS
 	tristate "Real Time Clock"
 	default n
-	depends on !S390
+	depends on !(S390 || PARISC)
 	select RTC_LIB
 	help
 	  Generic RTC class support. If you say yes here, you will


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From - Thu Nov 08 21:02:50 2018
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On Sat, Sep 06, 2008 at 10:06:26AM -0500, James Bottomley wrote:
> Parisc is a CONFIG_GEN_RTC architecture (we use the generic real time
> clock driver).

Well.

>                 Starting with 2.6.26, debian is now enabling
> CONFIG_RTC_CLASS (for platforms with specific RTC drivers) which
> disables CONFIG_GEN_RTC and means that hwclock (and ntp tracking) are
> broken on parisc with debian kernels 2.6.26 and above.

Yes. Most arches already needs it anyway.

> All of the arch/parisc/config files get this right, so someone at debian
> must have screwed up somehow.  The config option CONFIG_RTC_CLASS must
> be set to 'N' for all parisc systems.

Apparently hppa uses its special rtc type.  I propose that you take a
look at drivers/rtc/rtc-ppc.c and write a wrapper rtc module.

>                                        I'd suggest checking the debian
> kernel configs against the in-tree default files to see if there are any
> other cockups like this.

If there are, this are bugs in the kernel themself. I'm no hppa
developer so I won't waste my time with such.

Bastian

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From - Thu Nov 08 21:02:50 2018
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On Mon, 2008-09-08 at 18:37 +0200, Bastian Blank wrote:
> On Sat, Sep 06, 2008 at 10:06:26AM -0500, James Bottomley wrote:
> > Parisc is a CONFIG_GEN_RTC architecture (we use the generic real time
> > clock driver).
> 
> Well.
> 
> >                 Starting with 2.6.26, debian is now enabling
> > CONFIG_RTC_CLASS (for platforms with specific RTC drivers) which
> > disables CONFIG_GEN_RTC and means that hwclock (and ntp tracking) are
> > broken on parisc with debian kernels 2.6.26 and above.
> 
> Yes. Most arches already needs it anyway.
> 
> > All of the arch/parisc/config files get this right, so someone at debian
> > must have screwed up somehow.  The config option CONFIG_RTC_CLASS must
> > be set to 'N' for all parisc systems.
> 
> Apparently hppa uses its special rtc type.  I propose that you take a
> look at drivers/rtc/rtc-ppc.c and write a wrapper rtc module.

That may be the way forwards depending on what the RTC developers say,
but it certainly won't fix the 2.6.26 regression.

> >                                        I'd suggest checking the debian
> > kernel configs against the in-tree default files to see if there are any
> > other cockups like this.
> 
> If there are, this are bugs in the kernel themself. I'm no hppa
> developer so I won't waste my time with such.

Hardly, the bug is actually in the debian configs.  You have
CONFIG_RTC_CLASS as a generic override.  This is wrong, it needs to be
subordinate to CONIFG_GEN_RTC.  The quick fix would be to move the
CONFIG_RTC_CLASS sequence down from generic to the architectures ... if
you're incapable of doing that, I might be able to find time to look at
doing it for you.

The real bug looks to be the debian config system which relies on
concatenation ... what's really needed is a way of turning
CONFIG_RTC_CLASS off on parisc while keeping RTC_CLASS generic for those
architectures that need it.

James


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On Monday 08 September 2008, James Bottomley wrote:
> Put it back again by making RTC_CLASS 
> unselectable if the architecture is parisc.

Easier if those distros just wouldn't select RTC_CLASS then.  :)

And long term, better to work with RTC_CLASS.  Eliminate that
crufty asm-parisc/rtc.h file and one more GEN_RTC user; and
share more widely-used infrastructure.

If I read things right, that would be easy:  the PARISC RTC is
two firmware calls, ptc_tod_{read,set}(), which would map to
RTC class {read,set}_time() methods of about six lines each.
The RTC framework can do UIE emulation, if needed.

- Dave

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From - Thu Nov 08 21:02:50 2018
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On Mon, 2008-09-08 at 11:19 -0700, David Brownell wrote:
> On Monday 08 September 2008, James Bottomley wrote:
> > Put it back again by making RTC_CLASS 
> > unselectable if the architecture is parisc.
> 
> Easier if those distros just wouldn't select RTC_CLASS then.  :)

Yes, but think of distro config people rather like users ... if you can
prevent them from doing something stupid, it's a good idea.  In this
case, there's currently no way anyone should ever select RTC_CLASS on
parisc, so we should make that clear in the Kconfig file.

> And long term, better to work with RTC_CLASS.  Eliminate that
> crufty asm-parisc/rtc.h file and one more GEN_RTC user; and
> share more widely-used infrastructure.
> 
> If I read things right, that would be easy:  the PARISC RTC is
> two firmware calls, ptc_tod_{read,set}(), which would map to
> RTC class {read,set}_time() methods of about six lines each.
> The RTC framework can do UIE emulation, if needed.

OK, I can look at that, but in the mean time could we make the option
that causes the damage unselectable?  This is technically a regression
because before your patch GEN_RTC would override RTC_CLASS, now it's the
other way around.

James



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On Monday 08 September 2008, James Bottomley wrote:
> On Mon, 2008-09-08 at 11:19 -0700, David Brownell wrote:
> > On Monday 08 September 2008, James Bottomley wrote:
> > > Put it back again by making RTC_CLASS 
> > > unselectable if the architecture is parisc.
> > 
> > Easier if those distros just wouldn't select RTC_CLASS then.  :)
> 
> Yes, but think of distro config people rather like users ... if you can
> prevent them from doing something stupid, it's a good idea.  In this
> case, there's currently no way anyone should ever select RTC_CLASS on
> parisc, so we should make that clear in the Kconfig file.

Preventing them from doing stupid stuff is exactly why we
have Kconfig prevent both legacy *AND* framework RTC code
from being selected.  :)

Of course stupidity is infinite, and we didn't know about
this particular instance in advance...


> > And long term, better to work with RTC_CLASS.  Eliminate that
> > crufty asm-parisc/rtc.h file and one more GEN_RTC user; and
> > share more widely-used infrastructure.
> > 
> > If I read things right, that would be easy:  the PARISC RTC is
> > two firmware calls, ptc_tod_{read,set}(), which would map to
> > RTC class {read,set}_time() methods of about six lines each.
> > The RTC framework can do UIE emulation, if needed.
> 
> OK, I can look at that, but in the mean time could we make the option
> that causes the damage unselectable?

I'd worry if "the mean time" takes too long.  But lacking a
PARISC laptop to fix this on, I'm unlikely to complain much.


>	 This is technically a regression 
> because before your patch GEN_RTC would override RTC_CLASS, now it's the
> other way around.

Well, previously there was no override ... I think you mean
that parisc just completely ignored RTC_CLASS, treating it
like junk DNA.

- Dave

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH] fix RTC_CLASS regression with PARISC
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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On Mon, 2008-09-08 at 12:13 -0700, David Brownell wrote:
> On Monday 08 September 2008, James Bottomley wrote:
> > On Mon, 2008-09-08 at 11:19 -0700, David Brownell wrote:
> > > On Monday 08 September 2008, James Bottomley wrote:
> > > > Put it back again by making RTC_CLASS 
> > > > unselectable if the architecture is parisc.
> > > 
> > > Easier if those distros just wouldn't select RTC_CLASS then.  :)
> > 
> > Yes, but think of distro config people rather like users ... if you can
> > prevent them from doing something stupid, it's a good idea.  In this
> > case, there's currently no way anyone should ever select RTC_CLASS on
> > parisc, so we should make that clear in the Kconfig file.
> 
> Preventing them from doing stupid stuff is exactly why we
> have Kconfig prevent both legacy *AND* framework RTC code
> from being selected.  :)
> 
> Of course stupidity is infinite, and we didn't know about
> this particular instance in advance...
> 
> 
> > > And long term, better to work with RTC_CLASS.  Eliminate that
> > > crufty asm-parisc/rtc.h file and one more GEN_RTC user; and
> > > share more widely-used infrastructure.
> > > 
> > > If I read things right, that would be easy:  the PARISC RTC is
> > > two firmware calls, ptc_tod_{read,set}(), which would map to
> > > RTC class {read,set}_time() methods of about six lines each.
> > > The RTC framework can do UIE emulation, if needed.
> > 
> > OK, I can look at that, but in the mean time could we make the option
> > that causes the damage unselectable?
> 
> I'd worry if "the mean time" takes too long.  But lacking a
> PARISC laptop to fix this on, I'm unlikely to complain much.

What is the expectation?  If you're expecting all the architectures to
migrate over to RTC_CLASS, actually telling linux-arch and saying why
its a good idea would have been helpful.

All the PDC real time clock calls can do are read and set, nothing else,
so it's idealy suited to the GEN_RTC infrastructure ... what's the
benefit in moving it to RTC_CLASS?

> >	 This is technically a regression 
> > because before your patch GEN_RTC would override RTC_CLASS, now it's the
> > other way around.
> 
> Well, previously there was no override ... I think you mean
> that parisc just completely ignored RTC_CLASS, treating it
> like junk DNA.

No, it's a regression.  You made it so when you added this

#
# These legacy RTC drivers just cause too many conflicts with the
generic
# RTC framework ... let's not even try to coexist any more.
#
if RTC_LIB=n

Around the GEN_RTC configuration.  This turns off the ability to select
GEN_RTC if you've said yes to RTC_CLASS.  Since RTC_CLASS is currently
unsupported on parisc, we need to fix that by making the RTC_CLASS
option unselectable on parisc.

James


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From - Thu Nov 08 21:02:51 2018
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Subject: Re: last git update of parisc-2.6.git failed again to merge???
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Kyle,


Kyle McMartin wrote:
> On Sun, Sep 07, 2008 at 11:51:26AM +0000, Joel Soete wrote:
>> Hello Kyle,
>>
> 
> The history is non-linear, because I rebased it:
> 
Ah ok it's not yet another of my mistakes lol

> git fetch origin; git reset --hard origin/master
> 
Cool, I will try on my other clone (there I use http protocol and a b180 and in this figure it takes long hours before the 
clone action is finished. And unfortunately I don't have enough disk space to convert this tree in a hg or recent bzr one, 
that would probably help me to be convienced that git is well the more effcient vcs, ozn)

> while on your master branch should resolve it. But be careful, it
> will remove any of your local changes.
> 
> 
Well I just manage few external patch with quilt on another copy of your tree, I so not worry ;<)

Tx again for advises,
	J.
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Subject: Re: [PATCH] fix RTC_CLASS regression with PARISC
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On Monday 08 September 2008, James Bottomley wrote:
>=20
> > > OK, I can look at that, but in the mean time could we make the op=
tion
> > > that causes the damage unselectable?
> >=20
> > I'd worry if "the mean time" takes too long. =A0But lacking a
> > PARISC laptop to fix this on, I'm unlikely to complain much.
>=20
> What is the expectation? =A0If you're expecting all the architectures=
 to
> migrate over to RTC_CLASS, actually telling linux-arch and saying why
> its a good idea would have been helpful.

=46olk have been migrating already.  IMO there's no rush ... but
similarly, retrograde motion should be discouraged.  (Same issue
with essentially all legacy code in the tree.)


> All the PDC real time clock calls can do are read and set, nothing el=
se,
> so it's idealy suited to the GEN_RTC infrastructure ... what's the
> benefit in moving it to RTC_CLASS?

The same benefit always found in sharing infrastructure.  Lots
of little differences/bugs go away.  Infrastructure improvements
and bugfixes get leveraged.  Dead and crufticious code can vanish.
And so forth.


> > >=A0=A0=A0=A0=A0 This is technically a regression=20
> > > because before your patch GEN_RTC would override RTC_CLASS, now i=
t's the
> > > other way around.
> >=20
> > Well, previously there was no override ... I think you mean
> > that parisc just completely ignored RTC_CLASS, treating it
> > like junk DNA.
>=20
> No, it's a regression. =A0... =A0This turns off the ability to select
> GEN_RTC if you've said yes to RTC_CLASS. =A0Since RTC_CLASS is curren=
tly
> unsupported on parisc, we need to fix that by making the RTC_CLASS
> option unselectable on parisc.

So you affirmed that there was no override, AND that it was
previously treated as junk DNA (ignored).  So just what were
you disagreeing with me about??

I have a hard time calling something a regression which
was never really a supported configuration.  And which
still *JUST WORKS* in those defconfigs ... given all that,
it's hard to argue that something is actually broken.

Kconfig is not about letting Aunt Tillie configure kernels
without being able to shoot herself in the foot.  That
discussion has been had (at length!) before.  Result, we
have a much better kernel config framework ... but still
don't facilitate "Kconfig-4-dummiez" audiences.

- Dave

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Subject: Re: [PATCH] fix RTC_CLASS regression with PARISC
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From: David Brownell <david-b@pacbell.net>
Date: Mon, 8 Sep 2008 14:29:57 -0700

> On Monday 08 September 2008, James Bottomley wrote:
> > All the PDC real time clock calls can do are read and set, nothing else,
> > so it's idealy suited to the GEN_RTC infrastructure ... what's the
> > benefit in moving it to RTC_CLASS?
> 
> The same benefit always found in sharing infrastructure.  Lots
> of little differences/bugs go away.  Infrastructure improvements
> and bugfixes get leveraged.  Dead and crufticious code can vanish.
> And so forth.

I absolutely and positively agree with David here.

I just last week converted all of both sparc ports to the generic
RTC layer and what a huge burdon has been moved off of my shoulders.

The RTC layer is very nice and it even allows writing drivers for
very simplistic RTC devices (even ones that cannot be written)
with ease.  I had two such cases to handle on sparc64.


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On Mon, 2008-09-08 at 14:29 -0700, David Brownell wrote:
> > No, it's a regression.  ...  This turns off the ability to select
> > GEN_RTC if you've said yes to RTC_CLASS.  Since RTC_CLASS is currently
> > unsupported on parisc, we need to fix that by making the RTC_CLASS
> > option unselectable on parisc.
> 
> So you affirmed that there was no override, AND that it was
> previously treated as junk DNA (ignored).  So just what were
> you disagreeing with me about??

The fact that the override you put in to disable GEN_RTC is causing a
regression.

> I have a hard time calling something a regression which
> was never really a supported configuration.  And which
> still *JUST WORKS* in those defconfigs ... given all that,
> it's hard to argue that something is actually broken.

On 2.6.25 the parisc users got a working realtime clock.  On 2.6.26 they
can find themselves without one using the same .config file.  This is
the regression.  The fix is to disable RTC_CLASS until we have it
working for parisc.

> Kconfig is not about letting Aunt Tillie configure kernels
> without being able to shoot herself in the foot.  That
> discussion has been had (at length!) before.  Result, we
> have a much better kernel config framework ... but still
> don't facilitate "Kconfig-4-dummiez" audiences.

Kconfig is complex enough that we try not to trip users up by hiding
things, especially when it's the wrong thing to hide on this platform.
If an option specifically doesn't work or causes harm on a platform, it
shouldn't be selectable on that platform.  This isn't Aunt Tillieism,
this is called common sense.

James


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From - Thu Nov 08 21:02:51 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Mon, 2008-09-08 at 14:35 -0700, David Miller wrote:
> From: David Brownell <david-b@pacbell.net>
> Date: Mon, 8 Sep 2008 14:29:57 -0700
> 
> > On Monday 08 September 2008, James Bottomley wrote:
> > > All the PDC real time clock calls can do are read and set, nothing else,
> > > so it's idealy suited to the GEN_RTC infrastructure ... what's the
> > > benefit in moving it to RTC_CLASS?
> > 
> > The same benefit always found in sharing infrastructure.  Lots
> > of little differences/bugs go away.  Infrastructure improvements
> > and bugfixes get leveraged.  Dead and crufticious code can vanish.
> > And so forth.
> 
> I absolutely and positively agree with David here.
> 
> I just last week converted all of both sparc ports to the generic
> RTC layer and what a huge burdon has been moved off of my shoulders.
> 
> The RTC layer is very nice and it even allows writing drivers for
> very simplistic RTC devices (even ones that cannot be written)
> with ease.  I had two such cases to handle on sparc64.

I'm guessing they're not upstream yet (since I can't find them)?

However, if you based them on rtc-ppc.c then yes, I agree, it looks
reasonably easy:  it's just a matter of converting over the GEN_RTC
PDT_TOD helpers.

On a related note ... I could do this specifically for parisc, but I
could also do a GEN_RTC conversion to PDC_CLASS ... would that be more
helpful?

James


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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Mon, 08 Sep 2008 18:00:47 -0500

> On Mon, 2008-09-08 at 14:35 -0700, David Miller wrote:
> > The RTC layer is very nice and it even allows writing drivers for
> > very simplistic RTC devices (even ones that cannot be written)
> > with ease.  I had two such cases to handle on sparc64.
> 
> I'm guessing they're not upstream yet (since I can't find them)?

It's in my sparc next tree:

	master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-next-2.6.git

> However, if you based them on rtc-ppc.c then yes, I agree, it looks
> reasonably easy:  it's just a matter of converting over the GEN_RTC
> PDT_TOD helpers.

That's not what I do, I use the real RAW chip drivers provided by the
RTC layer.

That's the way to do this.

I think the powerpc folks did the wrong thing and should just register
generic platform_device objects in their platform code, and let the
RTC layer drive the individual devices in response.

All the powerpc folks are doing is providing a dummy shim into the
RTC layer using their machine description vector, and not really using
the RTC layer drivers at all.
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On Mon, 2008-09-08 at 16:04 -0700, David Miller wrote:
> From: James Bottomley <James.Bottomley@HansenPartnership.com>
> Date: Mon, 08 Sep 2008 18:00:47 -0500
> 
> > On Mon, 2008-09-08 at 14:35 -0700, David Miller wrote:
> > > The RTC layer is very nice and it even allows writing drivers for
> > > very simplistic RTC devices (even ones that cannot be written)
> > > with ease.  I had two such cases to handle on sparc64.
> > 
> > I'm guessing they're not upstream yet (since I can't find them)?
> 
> It's in my sparc next tree:
> 
> 	master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-next-2.6.git
> 
> > However, if you based them on rtc-ppc.c then yes, I agree, it looks
> > reasonably easy:  it's just a matter of converting over the GEN_RTC
> > PDT_TOD helpers.
> 
> That's not what I do, I use the real RAW chip drivers provided by the
> RTC layer.
> 
> That's the way to do this.
> 
> I think the powerpc folks did the wrong thing and should just register
> generic platform_device objects in their platform code, and let the
> RTC layer drive the individual devices in response.
> 
> All the powerpc folks are doing is providing a dummy shim into the
> RTC layer using their machine description vector, and not really using
> the RTC layer drivers at all.

But realistically that's all we need.  Our RTC is controlled by two
calls into firmware: a get and a set; nothing else.  We don't have the
docs to get at the clock without the firmware calls.

James


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Subject: Re: [PATCH] fix RTC_CLASS regression with PARISC
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On Monday 08 September 2008, David Miller wrote:
> I think the powerpc folks did the wrong thing and should just register
> generic platform_device objects in their platform code, and let the
> RTC layer drive the individual devices in response.

I kind of thought that was a migration aid ... 


> All the powerpc folks are doing is providing a dummy shim into the
> RTC layer using their machine description vector, and not really using
> the RTC layer drivers at all.

I basically agree.  There's functional overlap between those
machine descriptions and the RTC framework, and it should be
removed (by shrinking those descriptions).  The shim gets
/dev/rtcN support, and thus hwclock; also /sys/class/rtc/*
stuff.  But no wake alarms...


That said, there's a bit of unresolved stuff around NTP hooks
in the kernel.  Some patches are pending to let thtem work with
the RTC framework -- where writing an RTC may need to sleep,
for example because the RTC is on an I2C or SPI bus.  And
then there's the discussion of whether that shouldn't all be
handled by NTPD anyway, no special kernel support desired.
Alessandro has opinions there.  ;)

ISTR that was a factor in the powerpc taking that "sideways"
step.  Or if not powerpc, then some other arch.

- Dave

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On Monday 08 September 2008, James Bottomley wrote:
>=20
> > All the powerpc folks are doing is providing a dummy shim into the
> > RTC layer using their machine description vector, and not really us=
ing
> > the RTC layer drivers at all.
>=20
> But realistically that's all we need. =A0Our RTC is controlled by two
> calls into firmware: a get and a set; nothing else. =A0We don't have =
the
> docs to get at the clock without the firmware calls.

True for PARISC ... but not for PowerPC.  Lots of PowerPC
system boards use off-the-shelf RTCs with more capabilities
than the machine description vector acknowledges.

- Dave

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Mon, 08 Sep 2008 18:23:06 -0500

> But realistically that's all we need.  Our RTC is controlled by two
> calls into firmware: a get and a set; nothing else.  We don't have the
> docs to get at the clock without the firmware calls.

I wrote RTC layer drivers on sparc64 that make the firmware calls in
the Niagara system case, exactly like your case.

Really, this is the way to do this.

Since you're not reading what I implemented, I'll read it for you :-/

See drivers/rtc/rtc-sun4v.c, that's the driver

Code in arch/sparc64/kernel/time.c creates and registers the
appropriate platform_device object once the correct system type is
detected, and then rtc-sun4v.c attaches when such objects have been
registered.

Likewise for all the other RTC types that can be found on Sparc machines.
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From: David Brownell <david-b@pacbell.net>
Date: Mon, 8 Sep 2008 16:29:20 -0700

> That said, there's a bit of unresolved stuff around NTP hooks
> in the kernel.  Some patches are pending to let thtem work with
> the RTC framework -- where writing an RTC may need to sleep,
> for example because the RTC is on an I2C or SPI bus.  And
> then there's the discussion of whether that shouldn't all be
> handled by NTPD anyway, no special kernel support desired.
> Alessandro has opinions there.  ;)

My update_persistent_clock() on sparc64 is:

int update_persistent_clock(struct timespec now)
{
	struct rtc_device *rtc = rtc_class_open("rtc0");

	if (rtc)
		return rtc_set_mmss(rtc, now.tv_sec);

	return -1;
}

and that should handle this NTP shouldn't it?
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On Monday 08 September 2008, David Miller wrote:
> From: David Brownell <david-b@pacbell.net>
> Date: Mon, 8 Sep 2008 16:29:20 -0700
> 
> > That said, there's a bit of unresolved stuff around NTP hooks
> > in the kernel.  Some patches are pending to let thtem work with
> > the RTC framework -- where writing an RTC may need to sleep,
> > for example because the RTC is on an I2C or SPI bus.  And
> > then there's the discussion of whether that shouldn't all be
> > handled by NTPD anyway, no special kernel support desired.
> > Alessandro has opinions there.  ;)
> 
> My update_persistent_clock() on sparc64 is:
> 
> int update_persistent_clock(struct timespec now)
> {
> 	struct rtc_device *rtc = rtc_class_open("rtc0");

I'd be tempted to cache that ... notice how you never
close it, too.  That will goof lots of refcounts...


> 	if (rtc)
> 		return rtc_set_mmss(rtc, now.tv_sec);
> 
> 	return -1;
> }
> 
> and that should handle this NTP shouldn't it?

Depends on what patches have applied; I've lost track
of whether it's now ok for update_persistent_clock()
to sleep.  Previously it was not, without a critical
patch (appended).

Having something like that work is *certainly* a goal,
at least for those who don't want to get rid of those
kernel NTP hooks entirely.

And of course, once that works I'd claim it should live
in drivers/rtc for the benefit of other platforms.  :)

- Dave
 
=============== CUT ON THE DOTTED LINE ==================
Subject: ntp: let update_persistent_clock() sleep
From: "Maciej W. Rozycki" <macro@linux-mips.org>

This is a change that makes the 11-minute RTC update be run in the process
context.  This is so that update_persistent_clock() can sleep, which may
be required for certain types of RTC hardware -- most notably I2C devices.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 kernel/time/ntp.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

--- a/kernel/time/ntp.c	2008-06-30 21:20:51.000000000 -0700
+++ b/kernel/time/ntp.c	2008-06-30 21:21:27.000000000 -0700
@@ -10,13 +10,13 @@
 
 #include <linux/mm.h>
 #include <linux/time.h>
-#include <linux/timer.h>
 #include <linux/timex.h>
 #include <linux/jiffies.h>
 #include <linux/hrtimer.h>
 #include <linux/capability.h>
 #include <linux/math64.h>
 #include <linux/clocksource.h>
+#include <linux/workqueue.h>
 #include <asm/timex.h>
 
 /*
@@ -218,11 +218,11 @@ void second_overflow(void)
 /* Disable the cmos update - used by virtualization and embedded */
 int no_sync_cmos_clock  __read_mostly;
 
-static void sync_cmos_clock(unsigned long dummy);
+static void sync_cmos_clock(struct work_struct *work);
 
-static DEFINE_TIMER(sync_cmos_timer, sync_cmos_clock, 0, 0);
+static DECLARE_DELAYED_WORK(sync_cmos_work, sync_cmos_clock);
 
-static void sync_cmos_clock(unsigned long dummy)
+static void sync_cmos_clock(struct work_struct *work)
 {
 	struct timespec now, next;
 	int fail = 1;
@@ -258,13 +258,13 @@ static void sync_cmos_clock(unsigned lon
 		next.tv_sec++;
 		next.tv_nsec -= NSEC_PER_SEC;
 	}
-	mod_timer(&sync_cmos_timer, jiffies + timespec_to_jiffies(&next));
+	schedule_delayed_work(&sync_cmos_work, timespec_to_jiffies(&next));
 }
 
 static void notify_cmos_timer(void)
 {
 	if (!no_sync_cmos_clock)
-		mod_timer(&sync_cmos_timer, jiffies + 1);
+		schedule_delayed_work(&sync_cmos_work, 0);
 }
 
 #else

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David Miller writes:

> int update_persistent_clock(struct timespec now)
> {
> 	struct rtc_device *rtc = rtc_class_open("rtc0");
> 
> 	if (rtc)
> 		return rtc_set_mmss(rtc, now.tv_sec);
> 
> 	return -1;
> }
> 
> and that should handle this NTP shouldn't it?

Yes as long as your rtc set functions don't need to sleep, since
update_persistent_clock is called at interrupt level.  Some powerpc
systems have their RTC at the far end of an I2C bus, and the I2C
access routines can sleep.

Paul.
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From: David Brownell <david-b@pacbell.net>
Date: Mon, 8 Sep 2008 17:55:25 -0700

> On Monday 08 September 2008, David Miller wrote:
> > From: David Brownell <david-b@pacbell.net>
> > Date: Mon, 8 Sep 2008 16:29:20 -0700
> > 
> > > That said, there's a bit of unresolved stuff around NTP hooks
> > > in the kernel.  Some patches are pending to let thtem work with
> > > the RTC framework -- where writing an RTC may need to sleep,
> > > for example because the RTC is on an I2C or SPI bus.  And
> > > then there's the discussion of whether that shouldn't all be
> > > handled by NTPD anyway, no special kernel support desired.
> > > Alessandro has opinions there.  ;)
> > 
> > My update_persistent_clock() on sparc64 is:
> > 
> > int update_persistent_clock(struct timespec now)
> > {
> > 	struct rtc_device *rtc = rtc_class_open("rtc0");
> 
> I'd be tempted to cache that ... notice how you never
> close it, too.  That will goof lots of refcounts...

Well if I cache it then we'll hold it forever and that's not
so nice right?

I'm going to put the missing rtc_close() in there for now to
fix the leak.

I'm happy to cache this if you think it's warranted, but then
this is like saying that the refcount doesn't matter :-)

> =============== CUT ON THE DOTTED LINE ==================
> Subject: ntp: let update_persistent_clock() sleep
> From: "Maciej W. Rozycki" <macro@linux-mips.org>

I see, as Paul mentioned this is needed for stuff like RTCs
behind I2C.

This change isn't in Linus's tree yet.
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On Monday 08 September 2008, David Miller wrote:
>=20
> > > int update_persistent_clock(struct timespec now)
> > > {
> > > =A0=A0=A0=A0struct rtc_device *rtc =3D rtc_class_open("rtc0");

One more point:  that should probably use CONFIG_RTC_HCTOSYS_DEVICE
instead of hard-wiring to "rtc0".  Yeah, I'm sure your SPARCs have
lots of RTCs to choose from -- not! -- but I'd like to see you end
up with code that many folk can reuse/recycle/pirate.  ;)


> >=20
> > I'd be tempted to cache that ... notice how you never
> > close it, too. =A0That will goof lots of refcounts...
>=20
> Well if I cache it then we'll hold it forever and that's not
> so nice right?

Why wouldn't it be, so long as it's eventually closed
to prevent leakage?  Other code can rtc_class_open() too;
unlike a userspace open("/dev/rtc0", ...) this isn't an
exclusive operation.


> I'm going to put the missing rtc_close() in there for now to
> fix the leak.
>=20
> I'm happy to cache this if you think it's warranted, but then
> this is like saying that the refcount doesn't matter :-)

If you're concerned about stuff like "rmmod my-i2c-rtc-driver"
losing (or "rmmod my-i2c-rtc-driver's-i2c-adapter") ... what's
supposed to happen is that you start getting an -ENODEV return
from your rtc_set_mmss() call, and then you close and null your
cached handle to free up its memory.

The next time you go through this routine you'd see nothing
is cached and then try to get an RTC.  Maybe it's available
again; maybe not.

- Dave
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=46rom: David Brownell <david-b@pacbell.net>
Date: Mon, 8 Sep 2008 20:17:23 -0700

> On Monday 08 September 2008, David Miller wrote:
> >=20
> > > > int update_persistent_clock(struct timespec now)
> > > > {
> > > > =A0=A0=A0=A0struct rtc_device *rtc =3D rtc_class_open("rtc0");
>=20
> One more point:  that should probably use CONFIG_RTC_HCTOSYS_DEVICE
> instead of hard-wiring to "rtc0".  Yeah, I'm sure your SPARCs have
> lots of RTCs to choose from -- not! -- but I'd like to see you end
> up with code that many folk can reuse/recycle/pirate.  ;)

Can you be more specific?  Oh, you want me to use the string defined
by that config option.  Ok :-)

But as far as I can tell this will only be set of RTC_HCTOSYS and
users currently are allowed to not set that.

If this code goes somewhere generic you would need to ifdef test on
that, depending upon where you'd want to put it and how it would
be provided generically.

> > >=20
> > > I'd be tempted to cache that ... notice how you never
> > > close it, too. =A0That will goof lots of refcounts...
> >=20
> > Well if I cache it then we'll hold it forever and that's not
> > so nice right?
>=20
> Why wouldn't it be, so long as it's eventually closed
> to prevent leakage?  Other code can rtc_class_open() too;
> unlike a userspace open("/dev/rtc0", ...) this isn't an
> exclusive operation.

When would be "eventually closed" if I open it here and remember
the pointer in a static local variable, and don't close it?

I guess you need to be more specific about what you mean by
caching :)

> If you're concerned about stuff like "rmmod my-i2c-rtc-driver"
> losing (or "rmmod my-i2c-rtc-driver's-i2c-adapter") ... what's
> supposed to happen is that you start getting an -ENODEV return
> from your rtc_set_mmss() call, and then you close and null your
> cached handle to free up its memory.

I see... god that's ugly.  If you want to do this in the generic
RTC layer helper routines, that's fine, but I don't feel like
adding all sorts of stuff like that to the sparc specific routine
at the moment.

I'm trying to do things that are practical and that I can check
into sparc-next-2.6 right now.
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Subject: Re: [PATCH] fix RTC_CLASS regression with PARISC
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On Monday 08 September 2008, David Miller wrote:
> > > > > =A0=A0=A0=A0struct rtc_device *rtc =3D rtc_class_open("rtc0")=
;
> >=20
> > One more point:  that should probably use CONFIG_RTC_HCTOSYS_DEVICE
> > instead of hard-wiring to "rtc0".  Yeah, I'm sure your SPARCs have
> > lots of RTCs to choose from -- not! -- but I'd like to see you end
> > up with code that many folk can reuse/recycle/pirate.  ;)
>=20
> Can you be more specific?  Oh, you want me to use the string defined
> by that config option.  Ok :-)
>=20
> But as far as I can tell this will only be set of RTC_HCTOSYS and
> users currently are allowed to not set that.
>=20
> If this code goes somewhere generic you would need to ifdef test on
> that, depending upon where you'd want to put it and how it would
> be provided generically.

OK.


> > > > I'd be tempted to cache that ... notice how you never
> > > > close it, too. =A0That will goof lots of refcounts...
> > >=20
> > > Well if I cache it then we'll hold it forever and that's not
> > > so nice right?
> >=20
> > Why wouldn't it be, so long as it's eventually closed
> > to prevent leakage?  Other code can rtc_class_open() too;
> > unlike a userspace open("/dev/rtc0", ...) this isn't an
> > exclusive operation.
>=20
> When would be "eventually closed" if I open it here and remember
> the pointer in a static local variable, and don't close it?
>=20
> I guess you need to be more specific about what you mean by
> caching :)

I'll translate that as "-ENOPATCH".  :)

It'd suffice to fire a timer every 15 minutes or so, and
close it if the NTP logic hasn't refreshed the clock since
last time.  You're right that the simplest scheme is to just
open/close on each call.  The extra work is so infrequent it
may not be measurable.


> > If you're concerned about stuff like "rmmod my-i2c-rtc-driver"
> > losing (or "rmmod my-i2c-rtc-driver's-i2c-adapter") ... what's
> > supposed to happen is that you start getting an -ENODEV return
> > from your rtc_set_mmss() call, and then you close and null your
> > cached handle to free up its memory.
>=20
> I see... god that's ugly.  If you want to do this in the generic
> RTC layer helper routines,

=2E.. when they get created ...


> 	that's fine, but I don't feel like=20
> adding all sorts of stuff like that to the sparc specific routine
> at the moment.
>=20
> I'm trying to do things that are practical and that I can check
> into sparc-next-2.6 right now.

OK by me.



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Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel.cross-arch,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc
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Xref: news.gmane.org gmane.linux.ports.ia64:19429 gmane.linux.kernel.cross-arch:2103 gmane.linux.ports.ppc64.devel:46677 gmane.linux.ports.parisc:763
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/763>

OK, so could we get this in to -rc5 please?  It's a bug fix for parisc
since we're currently printing rubbish.

James

---
From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Wed, 3 Sep 2008 20:43:36 -0500
Subject: lib: Correct printk %pF to work on all architectures

It was introduced by

commit 0fe1ef24f7bd0020f29ffe287dfdb9ead33ca0b2
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sun Jul 6 16:43:12 2008 -0700

    vsprintf: add support for '%pS' and '%pF' pointer formats


However, the current way its coded doesn't work on parisc64.  For two
reasons:  1) parisc isn't in the #ifdef and 2) parisc has a different
format for function descriptors

Make dereference_function_descriptor() more accommodating by allowing
architecture overrides.  I put the three overrides (for parisc64, ppc64
and ia64) in arch/kernel/module.c because that's where the kernel
internal linker which knows how to deal with function descriptors sits.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Tony Luck <tony.luck@intel.com>
---
 arch/ia64/include/asm/sections.h    |    3 +++
 arch/ia64/kernel/module.c           |   12 ++++++++++++
 arch/parisc/kernel/module.c         |   14 ++++++++++++++
 arch/powerpc/include/asm/sections.h |    3 +++
 arch/powerpc/kernel/module_64.c     |   13 ++++++++++++-
 include/asm-generic/sections.h      |    6 ++++++
 include/asm-parisc/sections.h       |    5 +++++
 lib/vsprintf.c                      |   11 +----------
 8 files changed, 56 insertions(+), 11 deletions(-)

diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h
index 7286e4a..a7acad2 100644
--- a/arch/ia64/include/asm/sections.h
+++ b/arch/ia64/include/asm/sections.h
@@ -21,5 +21,8 @@ extern char __start_gate_brl_fsys_bubble_down_patchlist[], __end_gate_brl_fsys_b
 extern char __start_unwind[], __end_unwind[];
 extern char __start_ivt_text[], __end_ivt_text[];
 
+#undef dereference_function_descriptor
+void *dereference_function_descriptor(void *);
+
 #endif /* _ASM_IA64_SECTIONS_H */
 
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index 29aad34..545626f 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -31,9 +31,11 @@
 #include <linux/elf.h>
 #include <linux/moduleloader.h>
 #include <linux/string.h>
+#include <linux/uaccess.h>
 #include <linux/vmalloc.h>
 
 #include <asm/patch.h>
+#include <asm/sections.h>
 #include <asm/unaligned.h>
 
 #define ARCH_MODULE_DEBUG 0
@@ -941,3 +943,13 @@ module_arch_cleanup (struct module *mod)
 	if (mod->arch.core_unw_table)
 		unw_remove_unwind_table(mod->arch.core_unw_table);
 }
+
+void *dereference_function_descriptor(void *ptr)
+{
+	struct fdesc *desc = ptr;
+	void *p;
+
+	if (!probe_kernel_address(&desc->ip, p))
+		ptr = p;
+	return ptr;
+}
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index fdacdd4..44138c3 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -47,7 +47,9 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/bug.h>
+#include <linux/uaccess.h>
 
+#include <asm/sections.h>
 #include <asm/unwind.h>
 
 #if 0
@@ -860,3 +862,15 @@ void module_arch_cleanup(struct module *mod)
 	deregister_unwind_table(mod);
 	module_bug_cleanup(mod);
 }
+
+#ifdef CONFIG_64BIT
+void *dereference_function_descriptor(void *ptr)
+{
+	Elf64_Fdesc *desc = ptr;
+	void *p;
+
+	if (!probe_kernel_address(&desc->addr, p))
+		ptr = p;
+	return ptr;
+}
+#endif
diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
index 916018e..7710e9e 100644
--- a/arch/powerpc/include/asm/sections.h
+++ b/arch/powerpc/include/asm/sections.h
@@ -16,6 +16,9 @@ static inline int in_kernel_text(unsigned long addr)
 	return 0;
 }
 
+#undef dereference_function_descriptor
+void *dereference_function_descriptor(void *);
+
 #endif
 
 #endif /* __KERNEL__ */
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index ee6a298..ad79de2 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -21,8 +21,9 @@
 #include <linux/err.h>
 #include <linux/vmalloc.h>
 #include <linux/bug.h>
+#include <linux/uaccess.h>
 #include <asm/module.h>
-#include <asm/uaccess.h>
+#include <asm/sections.h>
 #include <asm/firmware.h>
 #include <asm/code-patching.h>
 #include <linux/sort.h>
@@ -451,3 +452,13 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 
 	return 0;
 }
+
+void *dereference_function_descriptor(void *ptr)
+{
+	struct ppc64_opd_entry *desc = ptr;
+	void *p;
+
+	if (!probe_kernel_address(&desc->funcaddr, p))
+		ptr = p;
+	return ptr;
+}
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index 8feeae1..79a7ff9 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -14,4 +14,10 @@ extern char __kprobes_text_start[], __kprobes_text_end[];
 extern char __initdata_begin[], __initdata_end[];
 extern char __start_rodata[], __end_rodata[];
 
+/* function descriptor handling (if any).  Override
+ * in asm/sections.h */
+#ifndef dereference_function_descriptor
+#define dereference_function_descriptor(p) (p)
+#endif
+
 #endif /* _ASM_GENERIC_SECTIONS_H_ */
diff --git a/include/asm-parisc/sections.h b/include/asm-parisc/sections.h
index fdd43ec..9d13c35 100644
--- a/include/asm-parisc/sections.h
+++ b/include/asm-parisc/sections.h
@@ -4,4 +4,9 @@
 /* nothing to see, move along */
 #include <asm-generic/sections.h>
 
+#ifdef CONFIG_64BIT
+#undef dereference_function_descriptor
+void *dereference_function_descriptor(void *);
+#endif
+
 #endif
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index d8d1d11..c399bc1 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -27,6 +27,7 @@
 
 #include <asm/page.h>		/* for PAGE_SIZE */
 #include <asm/div64.h>
+#include <asm/sections.h>	/* for dereference_function_descriptor() */
 
 /* Works only for digits and letters, but small and fast */
 #define TOLOWER(x) ((x) | 0x20)
@@ -513,16 +514,6 @@ static char *string(char *buf, char *end, char *s, int field_width, int precisio
 	return buf;
 }
 
-static inline void *dereference_function_descriptor(void *ptr)
-{
-#if defined(CONFIG_IA64) || defined(CONFIG_PPC64)
-	void *p;
-	if (!probe_kernel_address(ptr, p))
-		ptr = p;
-#endif
-	return ptr;
-}
-
 static char *symbol_string(char *buf, char *end, void *ptr, int field_width, int precision, int flags)
 {
 	unsigned long value = (unsigned long) ptr;
-- 
1.5.5.1



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From - Thu Nov 08 21:02:52 2018
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From: dann frazier <dannf@dannf.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.devel.kernel,gmane.linux.debian.ports.hppa
Subject: Re: Debian parisc config for 2.6.26 broke the real time clock
Date: Tue, 9 Sep 2008 10:58:35 -0600
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Cc: Bastian Blank <waldi@debian.org>, debian-kernel@lists.debian.org,
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	debian-hppa@lists.debian.org
To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Mon, Sep 08, 2008 at 11:58:22AM -0500, James Bottomley wrote:
> On Mon, 2008-09-08 at 18:37 +0200, Bastian Blank wrote:
> > On Sat, Sep 06, 2008 at 10:06:26AM -0500, James Bottomley wrote:
> > > Parisc is a CONFIG_GEN_RTC architecture (we use the generic real time
> > > clock driver).
> > 
> > Well.
> > 
> > >                 Starting with 2.6.26, debian is now enabling
> > > CONFIG_RTC_CLASS (for platforms with specific RTC drivers) which
> > > disables CONFIG_GEN_RTC and means that hwclock (and ntp tracking) are
> > > broken on parisc with debian kernels 2.6.26 and above.
> > 
> > Yes. Most arches already needs it anyway.
> > 
> > > All of the arch/parisc/config files get this right, so someone at debian
> > > must have screwed up somehow.  The config option CONFIG_RTC_CLASS must
> > > be set to 'N' for all parisc systems.
> > 
> > Apparently hppa uses its special rtc type.  I propose that you take a
> > look at drivers/rtc/rtc-ppc.c and write a wrapper rtc module.
> 
> That may be the way forwards depending on what the RTC developers say,
> but it certainly won't fix the 2.6.26 regression.
> 
> > >                                        I'd suggest checking the debian
> > > kernel configs against the in-tree default files to see if there are any
> > > other cockups like this.
> > 
> > If there are, this are bugs in the kernel themself. I'm no hppa
> > developer so I won't waste my time with such.
> 
> Hardly, the bug is actually in the debian configs.  You have
> CONFIG_RTC_CLASS as a generic override.  This is wrong, it needs to be
> subordinate to CONIFG_GEN_RTC.  The quick fix would be to move the
> CONFIG_RTC_CLASS sequence down from generic to the architectures ... if
> you're incapable of doing that, I might be able to find time to look at
> doing it for you.
> 
> The real bug looks to be the debian config system which relies on
> concatenation ... what's really needed is a way of turning
> CONFIG_RTC_CLASS off on parisc while keeping RTC_CLASS generic for those
> architectures that need it.

fyi, I've got an hppa build in progress - disabling RTC_CLASS causes
the symbols below to be removed (essentially, ^rtc_*)

I'm not sure what's behind the hppa/ABI removal commits - I didn't see
this discussed on the list - but I think it should be safe to remove
these symbols from the ABI files if we can demonstrate that none of
the conglomerate packages use them.

rtc_class_close
rtc_class_open
rtc_device_register
rtc_device_unregister
rtc_irq_register
rtc_irq_set_freq
rtc_irq_set_state
rtc_irq_unregister
rtc_month_days
rtc_read_alarm
rtc_read_time
rtc_set_alarm
rtc_set_mmss
rtc_set_time
rtc_time_to_tm
rtc_tm_to_time
rtc_update_irq
rtc_valid_tm
rtc_year_days

-- 
dann frazier

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From - Thu Nov 08 21:02:52 2018
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Subject: Re: Debian parisc config for 2.6.26 broke the real time clock
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On Tue, Sep 09, 2008 at 10:58:35AM -0600, dann frazier wrote:
> fyi, I've got an hppa build in progress - disabling RTC_CLASS causes
> the symbols below to be removed (essentially, ^rtc_*)

The whole new-style rtc support.

> I'm not sure what's behind the hppa/ABI removal commits - I didn't see
> this discussed on the list - but I think it should be safe to remove
> these symbols from the ABI files if we can demonstrate that none of
> the conglomerate packages use them.

Why does noone write this 30 lines module and fix it for all?

Bastian

-- 
Behind every great man, there is a woman -- urging him on.
		-- Harry Mudd, "I, Mudd", stardate 4513.3



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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.devel.kernel,gmane.linux.debian.ports.hppa
Subject: Re: Debian parisc config for 2.6.26 broke the real time clock
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On Tue, 2008-09-09 at 10:58 -0600, dann frazier wrote:
> On Mon, Sep 08, 2008 at 11:58:22AM -0500, James Bottomley wrote:
> > On Mon, 2008-09-08 at 18:37 +0200, Bastian Blank wrote:
> > > On Sat, Sep 06, 2008 at 10:06:26AM -0500, James Bottomley wrote:
> > > > Parisc is a CONFIG_GEN_RTC architecture (we use the generic real time
> > > > clock driver).
> > > 
> > > Well.
> > > 
> > > >                 Starting with 2.6.26, debian is now enabling
> > > > CONFIG_RTC_CLASS (for platforms with specific RTC drivers) which
> > > > disables CONFIG_GEN_RTC and means that hwclock (and ntp tracking) are
> > > > broken on parisc with debian kernels 2.6.26 and above.
> > > 
> > > Yes. Most arches already needs it anyway.
> > > 
> > > > All of the arch/parisc/config files get this right, so someone at debian
> > > > must have screwed up somehow.  The config option CONFIG_RTC_CLASS must
> > > > be set to 'N' for all parisc systems.
> > > 
> > > Apparently hppa uses its special rtc type.  I propose that you take a
> > > look at drivers/rtc/rtc-ppc.c and write a wrapper rtc module.
> > 
> > That may be the way forwards depending on what the RTC developers say,
> > but it certainly won't fix the 2.6.26 regression.
> > 
> > > >                                        I'd suggest checking the debian
> > > > kernel configs against the in-tree default files to see if there are any
> > > > other cockups like this.
> > > 
> > > If there are, this are bugs in the kernel themself. I'm no hppa
> > > developer so I won't waste my time with such.
> > 
> > Hardly, the bug is actually in the debian configs.  You have
> > CONFIG_RTC_CLASS as a generic override.  This is wrong, it needs to be
> > subordinate to CONIFG_GEN_RTC.  The quick fix would be to move the
> > CONFIG_RTC_CLASS sequence down from generic to the architectures ... if
> > you're incapable of doing that, I might be able to find time to look at
> > doing it for you.
> > 
> > The real bug looks to be the debian config system which relies on
> > concatenation ... what's really needed is a way of turning
> > CONFIG_RTC_CLASS off on parisc while keeping RTC_CLASS generic for those
> > architectures that need it.
> 
> fyi, I've got an hppa build in progress - disabling RTC_CLASS causes
> the symbols below to be removed (essentially, ^rtc_*)

Thanks Dann ... are you the person in charge of the builds then?

> I'm not sure what's behind the hppa/ABI removal commits - I didn't see
> this discussed on the list - but I think it should be safe to remove
> these symbols from the ABI files if we can demonstrate that none of
> the conglomerate packages use them.
> 
> rtc_class_close
> rtc_class_open
> rtc_device_register
> rtc_device_unregister
> rtc_irq_register
> rtc_irq_set_freq
> rtc_irq_set_state
> rtc_irq_unregister
> rtc_month_days
> rtc_read_alarm
> rtc_read_time
> rtc_set_alarm
> rtc_set_mmss
> rtc_set_time
> rtc_time_to_tm
> rtc_tm_to_time
> rtc_update_irq
> rtc_valid_tm
> rtc_year_days

They certainly have to be inessential to the parisc ABI ... they don't
work if anything's actually trying to use them.

James


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On Tue, 2008-09-09 at 19:38 +0200, Bastian Blank wrote:
> On Tue, Sep 09, 2008 at 10:58:35AM -0600, dann frazier wrote:
> > fyi, I've got an hppa build in progress - disabling RTC_CLASS causes
> > the symbols below to be removed (essentially, ^rtc_*)
> 
> The whole new-style rtc support.

But it doesn't work, that's rather the point of all of this.  If it
doesn't work, it can hardly be a committed ABI.

> > I'm not sure what's behind the hppa/ABI removal commits - I didn't see
> > this discussed on the list - but I think it should be safe to remove
> > these symbols from the ABI files if we can demonstrate that none of
> > the conglomerate packages use them.
> 
> Why does noone write this 30 lines module and fix it for all?

Because only an idiot would fix a bug in a released product by
introducing a new feature: that's QA and release process 101.  New
features belong in the next merge window, which will be for 2.6.28 by
which time it should have been reasonably QA'd by the parisc developers.

James


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On Tue, Sep 09, 2008 at 12:48:35PM -0500, James Bottomley wrote:
> They certainly have to be inessential to the parisc ABI ... they don't
> work if anything's actually trying to use them.

Really? Which sort of "don't work" is this? Why should a I2C rtc device
(some dallas chip) not work?

Bastian

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On Tue, Sep 09, 2008 at 09:12:41AM -0500, James Bottomley wrote:
> OK, so could we get this in to -rc5 please?  It's a bug fix for parisc
> since we're currently printing rubbish.
> 

While I suppose it's a "parisc" patch, I'm not going to try to push it
unless either Linus just applies it, or we get an ack from the ppc/ia64
folks too.

... That said, please apply it, Linus. :)

Acked-by: Kyle McMartin <kyle@mcmartin.ca>

regards, Kyle

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On Tue, 2008-09-09 at 20:01 +0200, Bastian Blank wrote:
> On Tue, Sep 09, 2008 at 12:48:35PM -0500, James Bottomley wrote:
> > They certainly have to be inessential to the parisc ABI ... they don't
> > work if anything's actually trying to use them.
> 
> Really? Which sort of "don't work" is this? Why should a I2C rtc device
> (some dallas chip) not work?

Um, because the architecture doesn't have an i2c bus.

James


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On Tue, Sep 09, 2008 at 01:12:01PM -0500, James Bottomley wrote:
> On Tue, 2008-09-09 at 20:01 +0200, Bastian Blank wrote:
> > On Tue, Sep 09, 2008 at 12:48:35PM -0500, James Bottomley wrote:
> > > They certainly have to be inessential to the parisc ABI ... they don't
> > > work if anything's actually trying to use them.
> > Really? Which sort of "don't work" is this? Why should a I2C rtc device
> > (some dallas chip) not work?
> Um, because the architecture doesn't have an i2c bus.

Well, it have USB, so can also power usb-to-i2c adapters. And there is
even the rtc test module.

Which "don't work" do you refer to?
- Does not work because there is no binding to the hardware.
- Does not work because a fundamental problem in the whole subsystem.
(- Does not work because ...)

Bastian

-- 
You're dead, Jim.
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> Um, because the architecture doesn't have an i2c bus.

Don't know about rtc but some PA-RISC models definitely have an i2c bus.
I see this message on a A500-75 model:

     The support bus which connects the system processors, the Guardian Service
     Processor (GSP) and the Power Monitor or Platform Monitor may have become
     hung.  (The support bus can be tested by issuing the GSP command "XD", and
     selecting the I2C access test).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Sep 09, 2008 at 02:42:03PM -0400, John David Anglin wrote:
> > Um, because the architecture doesn't have an i2c bus.
> 
> Don't know about rtc but some PA-RISC models definitely have an i2c bus.
> I see this message on a A500-75 model:
> 
>      The support bus which connects the system processors, the Guardian Service
>      Processor (GSP) and the Power Monitor or Platform Monitor may have become
>      hung.  (The support bus can be tested by issuing the GSP command "XD", and
>      selecting the I2C access test).

This I2C bus is not acessible by the operating system (as far as I know).

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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On Tue, 2008-09-09 at 20:29 +0200, Bastian Blank wrote:
> On Tue, Sep 09, 2008 at 01:12:01PM -0500, James Bottomley wrote:
> > On Tue, 2008-09-09 at 20:01 +0200, Bastian Blank wrote:
> > > On Tue, Sep 09, 2008 at 12:48:35PM -0500, James Bottomley wrote:
> > > > They certainly have to be inessential to the parisc ABI ... they don't
> > > > work if anything's actually trying to use them.
> > > Really? Which sort of "don't work" is this? Why should a I2C rtc device
> > > (some dallas chip) not work?
> > Um, because the architecture doesn't have an i2c bus.
> 
> Well, it have USB, so can also power usb-to-i2c adapters. And there is
> even the rtc test module.

Um you mean i2c_tiny_usb?  It doesn't drive any supported hardware ...
you have to build the connection yourself.  Plus only the latest revs of
PA actually supported USB ...

> Which "don't work" do you refer to?
> - Does not work because there is no binding to the hardware.
> - Does not work because a fundamental problem in the whole subsystem.
> (- Does not work because ...)

Well, like most real world systems, you can artificially construct
pathological failure cases.  If I were you I'd stop looking for the
heath robinson ones.  No-one in their right mind is going to construct a
USB to I2C interface for the purpose of running and I2C RTC; the set of
users is clearly empty.

The way you would get an external RTC is via a more credible interface
like PCI (or EISA/ISA) is from a watchdog card ... however, no-one's
apparently written a RTC interface for any of those yet.

James


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From - Thu Nov 08 21:02:53 2018
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> This I2C bus is not acessible by the operating system (as far as I know).

HP-UX seems to be able to access fan and power status somehow.  It
sends me an email when it thinks the i2c is hung, and once a day,
it sends a message that a fan which the chassis doesn't have (as far
as I can tell) has failed.  Of course, the A500-75 model doesn't
actually exist...  The model that actually shipped was a A500-7X.
As a result, I've never been able to update the firmware.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Sep 9, 2008 at 9:20 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> This I2C bus is not acessible by the operating system (as far as I know).
>
> HP-UX seems to be able to access fan and power status somehow.  It

Fan and power status are accessed through PDC. That's what I do with
the pdc_chassis driver, and what's exposed in /proc/chassis on !PAT
boxes (I don't have the PAT specs to implement the proper calls,
unfortunately). AFAIK, there's no need to use i2c to retrieve that
info, it's all PDC glue.

HTH

T-Bone

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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Subject: Re: [PATCH] Correct printk %pF to work on all architectures
Date: Wed, 10 Sep 2008 08:05:18 +1000
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	"Luck, Tony" <tony.luck@intel.com>,
	"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
	"linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>,
	"linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>,
	Parisc List <linux-parisc@vger.kernel.org>
To: Kyle McMartin <kyle@mcmartin.ca>
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On Tue, 2008-09-09 at 14:08 -0400, Kyle McMartin wrote:
> On Tue, Sep 09, 2008 at 09:12:41AM -0500, James Bottomley wrote:
> > OK, so could we get this in to -rc5 please?  It's a bug fix for parisc
> > since we're currently printing rubbish.
> > 
> 
> While I suppose it's a "parisc" patch, I'm not going to try to push it
> unless either Linus just applies it, or we get an ack from the ppc/ia64
> folks too.
> 
> ... That said, please apply it, Linus. :)
> 
> Acked-by: Kyle McMartin <kyle@mcmartin.ca>

Got one from us already but here it is again

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

Cheers,
Ben.


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From: Andrew Morton <akpm@linux-foundation.org>
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Subject: Re: [PATCH] fix RTC_CLASS regression with PARISC
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To: David Miller <davem@davemloft.net>
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On Mon, 08 Sep 2008 19:52:35 -0700 (PDT)
David Miller <davem@davemloft.net> wrote:

> From: David Brownell <david-b@pacbell.net>
> Date: Mon, 8 Sep 2008 17:55:25 -0700
> 
> > On Monday 08 September 2008, David Miller wrote:
> > > From: David Brownell <david-b@pacbell.net>
> > > Date: Mon, 8 Sep 2008 16:29:20 -0700
> > > 
> > > > That said, there's a bit of unresolved stuff around NTP hooks
> > > > in the kernel.  Some patches are pending to let thtem work with
> > > > the RTC framework -- where writing an RTC may need to sleep,
> > > > for example because the RTC is on an I2C or SPI bus.  And
> > > > then there's the discussion of whether that shouldn't all be
> > > > handled by NTPD anyway, no special kernel support desired.
> > > > Alessandro has opinions there.  ;)
> > > 
> > > My update_persistent_clock() on sparc64 is:
> > > 
> > > int update_persistent_clock(struct timespec now)
> > > {
> > > 	struct rtc_device *rtc = rtc_class_open("rtc0");
> > 
> > I'd be tempted to cache that ... notice how you never
> > close it, too.  That will goof lots of refcounts...
> 
> Well if I cache it then we'll hold it forever and that's not
> so nice right?
> 
> I'm going to put the missing rtc_close() in there for now to
> fix the leak.
> 
> I'm happy to cache this if you think it's warranted, but then
> this is like saying that the refcount doesn't matter :-)
> 
> > =============== CUT ON THE DOTTED LINE ==================
> > Subject: ntp: let update_persistent_clock() sleep
> > From: "Maciej W. Rozycki" <macro@linux-mips.org>
> 
> I see, as Paul mentioned this is needed for stuff like RTCs
> behind I2C.
> 
> This change isn't in Linus's tree yet.

Should it be?

Its current status is: stuck in -mm.  I've sent it to Thomas a couple
of times marked "for 2.6.27?" and he might have applied it now (I'm a
few days behind, waiting for linux-next to start up again).

It was not included in Thomas's recent mainline pull request:

From: Thomas Gleixner <tglx@tglx.de>
Subject: [GIT pull] timer updates for 2.6.27
Date: Tue, 9 Sep 2008 22:32:39 +0200 (CEST)


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From - Thu Nov 08 21:02:53 2018
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From: "Randy.Dunlap" <rdunlap@xenotime.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] fix RTC_CLASS regression with PARISC
Date: Wed, 10 Sep 2008 14:09:31 -0700 (PDT)
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Cc: David Miller <davem@davemloft.net>, david-b@pacbell.net,
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To: Andrew Morton <akpm@linux-foundation.org>
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On Wed, 10 Sep 2008, Andrew Morton wrote:

> On Mon, 08 Sep 2008 19:52:35 -0700 (PDT)
> David Miller <davem@davemloft.net> wrote:
> 
> > From: David Brownell <david-b@pacbell.net>
> > Date: Mon, 8 Sep 2008 17:55:25 -0700
> > 
> > > On Monday 08 September 2008, David Miller wrote:
> > > > From: David Brownell <david-b@pacbell.net>
> > > > Date: Mon, 8 Sep 2008 16:29:20 -0700
> > > > 
> > > > > That said, there's a bit of unresolved stuff around NTP hooks
> > > > > in the kernel.  Some patches are pending to let thtem work with
> > > > > the RTC framework -- where writing an RTC may need to sleep,
> > > > > for example because the RTC is on an I2C or SPI bus.  And
> > > > > then there's the discussion of whether that shouldn't all be
> > > > > handled by NTPD anyway, no special kernel support desired.
> > > > > Alessandro has opinions there.  ;)
> > > > 
> > > > My update_persistent_clock() on sparc64 is:
> > > > 
> > > > int update_persistent_clock(struct timespec now)
> > > > {
> > > > 	struct rtc_device *rtc = rtc_class_open("rtc0");
> > > 
> > > I'd be tempted to cache that ... notice how you never
> > > close it, too.  That will goof lots of refcounts...
> > 
> > Well if I cache it then we'll hold it forever and that's not
> > so nice right?
> > 
> > I'm going to put the missing rtc_close() in there for now to
> > fix the leak.
> > 
> > I'm happy to cache this if you think it's warranted, but then
> > this is like saying that the refcount doesn't matter :-)
> > 
> > > =============== CUT ON THE DOTTED LINE ==================
> > > Subject: ntp: let update_persistent_clock() sleep
> > > From: "Maciej W. Rozycki" <macro@linux-mips.org>
> > 
> > I see, as Paul mentioned this is needed for stuff like RTCs
> > behind I2C.
> > 
> > This change isn't in Linus's tree yet.
> 
> Should it be?
> 
> Its current status is: stuck in -mm.  I've sent it to Thomas a couple
> of times marked "for 2.6.27?" and he might have applied it now (I'm a
> few days behind, waiting for linux-next to start up again).

This is something that you can attempt (again) to address next week along
with other process issues...

Maybe travel time/delay is also involved (for people other than Mr. Rothwell).


> It was not included in Thomas's recent mainline pull request:
> 
> From: Thomas Gleixner <tglx@tglx.de>
> Subject: [GIT pull] timer updates for 2.6.27
> Date: Tue, 9 Sep 2008 22:32:39 +0200 (CEST)

-- 
~Randy
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From - Thu Nov 08 21:02:53 2018
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From: David Brownell <david-b@pacbell.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] fix RTC_CLASS regression with PARISC
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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To: "Randy.Dunlap" <rdunlap@xenotime.net>
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On Wednesday 10 September 2008, Randy.Dunlap wrote:
>=20
> > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D CUT ON THE DOTTED=
 LINE =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > > > Subject: ntp: let update_persistent_clock() sleep
> > > > From: "Maciej W. Rozycki" <macro@linux-mips.org>
> > >=20
> > > I see, as Paul mentioned this is needed for stuff like RTCs
> > > behind I2C.
> > >=20
> > > This change isn't in Linus's tree yet.
> >=20
> > Should it be?

IMO if it doesn't make 2.6.27, it should merge for 2.6.28 early-ish.

=20
> > Its current status is: stuck in -mm. =A0I've sent it to Thomas a co=
uple
> > of times marked "for 2.6.27?" and he might have applied it now (I'm=
 a
> > few days behind, waiting for linux-next to start up again).
>=20
> This is something that you can attempt (again) to address next week a=
long
> with other process issues...

I don't think anyone in particular has been _pushing_ to resolve these
NTP related issues ... lack of urgency.  Maybe it's fair to think of
that as a process issue.  If DaveM wants SPARC64 to completely remove
its legacy RTC support for some release (which?) then:  (a) great! and
(b) that should be sufficient urgency.

There was, I think, another patch related to this one.  Then there may
be a few other loose ends to tie up also.

- Dave
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From: David Miller <davem@davemloft.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] fix RTC_CLASS regression with PARISC
Date: Wed, 10 Sep 2008 14:20:47 -0700 (PDT)
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=46rom: David Brownell <david-b@pacbell.net>
Date: Wed, 10 Sep 2008 14:19:04 -0700

> On Wednesday 10 September 2008, Randy.Dunlap wrote:
> >=20
> > > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D CUT ON THE DOTT=
ED LINE =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > > > > Subject: ntp: let update_persistent_clock() sleep
> > > > > From: "Maciej W. Rozycki" <macro@linux-mips.org>
> > > >=20
> > > > I see, as Paul mentioned this is needed for stuff like RTCs
> > > > behind I2C.
> > > >=20
> > > > This change isn't in Linus's tree yet.
> > >=20
> > > Should it be?
>=20
> IMO if it doesn't make 2.6.27, it should merge for 2.6.28 early-ish.
>=20
> =20
> > > Its current status is: stuck in -mm. =A0I've sent it to Thomas a =
couple
> > > of times marked "for 2.6.27?" and he might have applied it now (I=
'm a
> > > few days behind, waiting for linux-next to start up again).
> >=20
> > This is something that you can attempt (again) to address next week=
 along
> > with other process issues...
>=20
> I don't think anyone in particular has been _pushing_ to resolve thes=
e
> NTP related issues ... lack of urgency.  Maybe it's fair to think of
> that as a process issue.  If DaveM wants SPARC64 to completely remove
> its legacy RTC support for some release (which?) then:  (a) great! an=
d
> (b) that should be sufficient urgency.

Well, firstly my RTC sparc work is 2.6.28 targetted.

Secondly, that sleeping capability is only really needed for I2C based
RTC chips, of which sparc isn't currently making any use of.

PowerPC folks do, however, use I2C based RTC chips right now I thought?
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Subject: Re: [PATCH] fix RTC_CLASS regression with PARISC
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On Wednesday 10 September 2008, David Miller wrote:
> >=20
> > I don't think anyone in particular has been _pushing_ to resolve th=
ese
> > NTP related issues ... lack of urgency. =A0Maybe it's fair to think=
 of
> > that as a process issue. =A0If DaveM wants SPARC64 to completely re=
move
> > its legacy RTC support for some release (which?) then: =A0(a) great=
! and
> > (b) that should be sufficient urgency.
>=20
> Well, firstly my RTC sparc work is 2.6.28 targetted.

=46ine; Andrew and Thomas won't need to worry about this patch
for now, then.


> Secondly, that sleeping capability is only really needed for I2C base=
d
> RTC chips, of which sparc isn't currently making any use of.

Not quite right.  The RTC calls you make grabs a mutex; *ALL* calls
into the framework are made in task context.  Even if the underlying
RTC happens to be the type with registers on the CPU bus, where
there's no need to sleep when reading values.

Of course, you're very unlikely to sleep while waiting for that
mutex; or even while holding it, if you stick to Sun hardware.
Someone running Linux on one of the FPGA-based SPARCs might well
use an I2C based RTC though.

- Dave
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Subject: Re: [PATCH] fix RTC_CLASS regression with PARISC
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From: David Brownell <david-b@pacbell.net>
Date: Wed, 10 Sep 2008 14:36:25 -0700

> Of course, you're very unlikely to sleep while waiting for that
> mutex; or even while holding it, if you stick to Sun hardware.
> Someone running Linux on one of the FPGA-based SPARCs might well
> use an I2C based RTC though.

There are at least one or two sparc workstations and/or servers that
use an I2C based RTC, I just haven't written the driver yet :)
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commit deac93df26b20cf8438339b5935b5f5643bc30c9
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date:   Wed Sep 3 20:43:36 2008 -0500

    lib: Correct printk %pF to work on all architectures

Broke the non modular builds by moving an essential function into
modules.c.  Fix this by moving it out again and into asm/sections.h as
an inline.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 arch/parisc/kernel/module.c   |   14 --------------
 include/asm-parisc/sections.h |   13 +++++++++++--
 2 files changed, 11 insertions(+), 16 deletions(-)

diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 44138c3..fdacdd4 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -47,9 +47,7 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/bug.h>
-#include <linux/uaccess.h>
 
-#include <asm/sections.h>
 #include <asm/unwind.h>
 
 #if 0
@@ -862,15 +860,3 @@ void module_arch_cleanup(struct module *mod)
 	deregister_unwind_table(mod);
 	module_bug_cleanup(mod);
 }
-
-#ifdef CONFIG_64BIT
-void *dereference_function_descriptor(void *ptr)
-{
-	Elf64_Fdesc *desc = ptr;
-	void *p;
-
-	if (!probe_kernel_address(&desc->addr, p))
-		ptr = p;
-	return ptr;
-}
-#endif
diff --git a/include/asm-parisc/sections.h b/include/asm-parisc/sections.h
index 9d13c35..b08f9f8 100644
--- a/include/asm-parisc/sections.h
+++ b/include/asm-parisc/sections.h
@@ -1,12 +1,21 @@
 #ifndef _PARISC_SECTIONS_H
 #define _PARISC_SECTIONS_H
 
-/* nothing to see, move along */
+#include <linux/elf.h>
+#include <linux/uaccess.h>
 #include <asm-generic/sections.h>
 
 #ifdef CONFIG_64BIT
 #undef dereference_function_descriptor
-void *dereference_function_descriptor(void *);
+static inline void *dereference_function_descriptor(void *ptr)
+{
+	Elf64_Fdesc *desc = ptr;
+	void *p;
+
+	if (!probe_kernel_address(&desc->addr, p))
+		ptr = p;
+	return ptr;
+}
 #endif
 
 #endif
-- 
1.5.6.5



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From: Kyle McMartin <kyle@mcmartin.ca>
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On Thu, Sep 11, 2008 at 10:56:15AM -0500, James Bottomley wrote:
> commit deac93df26b20cf8438339b5935b5f5643bc30c9
> Author: James Bottomley <James.Bottomley@HansenPartnership.com>
> Date:   Wed Sep 3 20:43:36 2008 -0500
> 
>     lib: Correct printk %pF to work on all architectures
> 
> Broke the non modular builds by moving an essential function into
> modules.c.  Fix this by moving it out again and into asm/sections.h as
> an inline.
> 
> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

Ack. Want to just fire it off to the big penguin, or should I submit it
with the unwind fix in the meantime?

r, Kyle
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Thu, 2008-09-11 at 12:01 -0400, Kyle McMartin wrote:
> On Thu, Sep 11, 2008 at 10:56:15AM -0500, James Bottomley wrote:
> > commit deac93df26b20cf8438339b5935b5f5643bc30c9
> > Author: James Bottomley <James.Bottomley@HansenPartnership.com>
> > Date:   Wed Sep 3 20:43:36 2008 -0500
> > 
> >     lib: Correct printk %pF to work on all architectures
> > 
> > Broke the non modular builds by moving an essential function into
> > modules.c.  Fix this by moving it out again and into asm/sections.h as
> > an inline.
> > 
> > Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
> 
> Ack. Want to just fire it off to the big penguin, or should I submit it
> with the unwind fix in the meantime?

We have this, that and the RTC fix ... I'd say that's enough to maintain
a tree.

James


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From - Thu Nov 08 21:02:54 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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On Thu, Sep 11, 2008 at 11:02:34AM -0500, James Bottomley wrote:
> On Thu, 2008-09-11 at 12:01 -0400, Kyle McMartin wrote:
> > On Thu, Sep 11, 2008 at 10:56:15AM -0500, James Bottomley wrote:
> > > commit deac93df26b20cf8438339b5935b5f5643bc30c9
> > > Author: James Bottomley <James.Bottomley@HansenPartnership.com>
> > > Date:   Wed Sep 3 20:43:36 2008 -0500
> > > 
> > >     lib: Correct printk %pF to work on all architectures
> > > 
> > > Broke the non modular builds by moving an essential function into
> > > modules.c.  Fix this by moving it out again and into asm/sections.h as
> > > an inline.
> > > 
> > > Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
> > 
> > Ack. Want to just fire it off to the big penguin, or should I submit it
> > with the unwind fix in the meantime?
> 
> We have this, that and the RTC fix ... I'd say that's enough to maintain
> a tree.
> 

Yeah, I cherrypicked from the parisc-2.6 branch for 2.6.27 (crap,
haven't pushed the tree out, my bad.) I didn't want to 'rename' the tree
since sfr is using "parisc-2.6" to mean "parisc-next-2.6" right now.

I'll push out a parisc-2.6.27.git tree later today.

r, Kyle
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From - Thu Nov 08 21:02:54 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
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Hi Kyle,

Today's linux-next merge of the parisc tree got a conflict in
include/asm-parisc/a.out.h between commit
9d5a9e74655b9d04d0ec9c8e47801163b7b74211 ("Remove asm/a.out.h files for
all architectures without a.out support") from the dwmw2 tree and commit
aa12a68bd7340733a06a2ceddb0e2a9d3d9e1a5a ("parisc: move
include/asm-parisc to arch/parisc/include/asm") from the parisc tree.

I just removed the file.
--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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From - Thu Nov 08 21:02:54 2018
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From: Srinivasa Ds <srinivasa@in.ibm.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [RFC][PATCH] Demultiplexing SIGTRAP signal
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Currently a SIGTRAP signal can denote any one of below reasons.
	- Breakpoint hit
	- H/W debug register hit
	- Single step
	- SIGTRAP signal sent through kill() or rasie()

Architectures like powerpc/parisc provides infrastructure to demultiplex
SIGTRAP signal by passing down the information for receiving SIGTRAP through
si_code of siginfot_t structure. Here is an attempt is generalise this 
infrastructure by extending it to x86 and x86_64 archs. 

Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com>



---
 arch/ia64/include/asm/siginfo.h    |    5 -----
 arch/powerpc/include/asm/siginfo.h |    5 -----
 arch/x86/kernel/traps_32.c         |   19 +++++++++++++++++--
 arch/x86/kernel/traps_64.c         |    7 ++++++-
 include/asm-generic/siginfo.h      |    2 ++
 include/asm-parisc/siginfo.h       |    5 -----
 6 files changed, 25 insertions(+), 18 deletions(-)

Index: linux-2.6.27-rc7/arch/ia64/include/asm/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/arch/ia64/include/asm/siginfo.h
+++ linux-2.6.27-rc7/arch/ia64/include/asm/siginfo.h
@@ -113,11 +113,6 @@ typedef struct siginfo {
 #undef NSIGSEGV
 #define NSIGSEGV	3
 
-/*
- * SIGTRAP si_codes
- */
-#define TRAP_BRANCH	(__SI_FAULT|3)	/* process taken branch trap */
-#define TRAP_HWBKPT	(__SI_FAULT|4)	/* hardware breakpoint or watchpoint */
 #undef NSIGTRAP
 #define NSIGTRAP	4
 
Index: linux-2.6.27-rc7/arch/powerpc/include/asm/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/arch/powerpc/include/asm/siginfo.h
+++ linux-2.6.27-rc7/arch/powerpc/include/asm/siginfo.h
@@ -15,11 +15,6 @@
 
 #include <asm-generic/siginfo.h>
 
-/*
- * SIGTRAP si_codes
- */
-#define TRAP_BRANCH	(__SI_FAULT|3)	/* process taken branch trap */
-#define TRAP_HWBKPT	(__SI_FAULT|4)	/* hardware breakpoint or watchpoint */
 #undef NSIGTRAP
 #define NSIGTRAP	4
 
Index: linux-2.6.27-rc7/arch/x86/kernel/traps_32.c
===================================================================
--- linux-2.6.27-rc7.orig/arch/x86/kernel/traps_32.c
+++ linux-2.6.27-rc7/arch/x86/kernel/traps_32.c
@@ -890,6 +890,7 @@ void __kprobes do_int3(struct pt_regs *r
 void __kprobes do_debug(struct pt_regs *regs, long error_code)
 {
 	struct task_struct *tsk = current;
+	struct siginfo info;
 	unsigned int condition;
 
 	trace_hardirqs_fixup();
@@ -935,8 +936,22 @@ void __kprobes do_debug(struct pt_regs *
 			goto clear_TF_reenable;
 	}
 
-	/* Ok, finally something we can handle */
-	send_sigtrap(tsk, regs, error_code);
+	tsk->thread.trap_no = 1;
+	tsk->thread.error_code = error_code;
+
+	memset(&info, 0, sizeof(info));
+	info.si_signo = SIGTRAP;
+	if (condition & DR_STEP)
+		info.si_code = TRAP_TRACE;
+	else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
+		info.si_code = TRAP_HWBKPT;
+	else
+		info.si_code = TRAP_BRKPT;
+	/* User-mode ip? */
+	info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL;
+
+	/* Send us the fake SIGTRAP */
+	force_sig_info(SIGTRAP, &info, tsk);
 
 	/*
 	 * Disable additional traps. They'll be re-enabled when
Index: linux-2.6.27-rc7/arch/x86/kernel/traps_64.c
===================================================================
--- linux-2.6.27-rc7.orig/arch/x86/kernel/traps_64.c
+++ linux-2.6.27-rc7/arch/x86/kernel/traps_64.c
@@ -936,7 +936,12 @@ asmlinkage void __kprobes do_debug(struc
 	tsk->thread.error_code = error_code;
 	info.si_signo = SIGTRAP;
 	info.si_errno = 0;
-	info.si_code = TRAP_BRKPT;
+	if (condition & DR_STEP)
+		info.si_code = TRAP_TRACE;
+	else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
+		info.si_code = TRAP_HWBKPT;
+	else
+		info.si_code = TRAP_BRKPT;
 	info.si_addr = user_mode(regs) ? (void __user *)regs->ip : NULL;
 	force_sig_info(SIGTRAP, &info, tsk);
 
Index: linux-2.6.27-rc7/include/asm-generic/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-generic/siginfo.h
+++ linux-2.6.27-rc7/include/asm-generic/siginfo.h
@@ -199,6 +199,8 @@ typedef struct siginfo {
  */
 #define TRAP_BRKPT	(__SI_FAULT|1)	/* process breakpoint */
 #define TRAP_TRACE	(__SI_FAULT|2)	/* process trace trap */
+#define TRAP_BRANCH     (__SI_FAULT|3)  /* process taken branch trap */
+#define TRAP_HWBKPT     (__SI_FAULT|4)  /* hardware breakpoint or watchpoint 
*/
 #define NSIGTRAP	2
 
 /*
Index: linux-2.6.27-rc7/include/asm-parisc/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-parisc/siginfo.h
+++ linux-2.6.27-rc7/include/asm-parisc/siginfo.h
@@ -3,11 +3,6 @@
 
 #include <asm-generic/siginfo.h>
 
-/*
- * SIGTRAP si_codes
- */
-#define TRAP_BRANCH	(__SI_FAULT|3)	/* process taken branch trap */
-#define TRAP_HWBKPT	(__SI_FAULT|4)	/* hardware breakpoint or watchpoint */
 #undef NSIGTRAP
 #define NSIGTRAP	4
 
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Subject: Re: [RFC][PATCH] Demultiplexing SIGTRAP signal
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* Srinivasa Ds <srinivasa@in.ibm.com> wrote:

> Currently a SIGTRAP signal can denote any one of below reasons.
> 	- Breakpoint hit
> 	- H/W debug register hit
> 	- Single step
> 	- SIGTRAP signal sent through kill() or rasie()
> 
> Architectures like powerpc/parisc provides infrastructure to 
> demultiplex SIGTRAP signal by passing down the information for 
> receiving SIGTRAP through si_code of siginfot_t structure. Here is an 
> attempt is generalise this infrastructure by extending it to x86 and 
> x86_64 archs.

no fundamental objections - assuming existing x86 apps have not grown an 
ABI dependency on the existing send_sigtrap() semantics. (Debuggers and 
JITs would be a candidate for such dependencies.)

a small implementational detail, this bit:

> @@ -935,8 +936,22 @@ void __kprobes do_debug(struct pt_regs *
>  			goto clear_TF_reenable;
>  	}
>  
> -	/* Ok, finally something we can handle */
> -	send_sigtrap(tsk, regs, error_code);
> +	tsk->thread.trap_no = 1;
> +	tsk->thread.error_code = error_code;
> +
> +	memset(&info, 0, sizeof(info));
> +	info.si_signo = SIGTRAP;
> +	if (condition & DR_STEP)
> +		info.si_code = TRAP_TRACE;
> +	else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
> +		info.si_code = TRAP_HWBKPT;
> +	else
> +		info.si_code = TRAP_BRKPT;
> +	/* User-mode ip? */
> +	info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL;
> +
> +	/* Send us the fake SIGTRAP */
> +	force_sig_info(SIGTRAP, &info, tsk);

should be pushed into [a sufficiently extended] send_sigtrap() instead.

and this bit:

> -	info.si_code = TRAP_BRKPT;
> +	if (condition & DR_STEP)
> +		info.si_code = TRAP_TRACE;
> +	else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
> +		info.si_code = TRAP_HWBKPT;
> +	else
> +		info.si_code = TRAP_BRKPT;

should be separated into a helper function as well i guess.

Roland, any objections to the core idea (or to the implementation)?

	Ingo
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Subject: Re: [RFC][PATCH] Demultiplexing SIGTRAP signal
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On Monday 22 September 2008 16:12:02 Ingo Molnar wrote:
> no fundamental objections - assuming existing x86 apps have not grown an
> ABI dependency on the existing send_sigtrap() semantics. (Debuggers and
> JITs would be a candidate for such dependencies.)
>

Assuming that no ABI dependency exist between x86 apps and send_sigtrap(),
And implementing some of the Ingo's suggestions, Iam resending the patch.

Still waiting for Roland's reply.


Currently a SIGTRAP can denote any one of below reasons.
	- Breakpoint hit
	- H/W debug register hit
	- Single step
	- Signal sent through kill() or rasie()

Architectures like powerpc/parisc provides infrastructure to demultiplex
SIGTRAP signal by passing down the information for receiving SIGTRAP through
si_code of siginfot_t strucutre. Here is an attempt is generalise this 
infrasturcutre by extending it to x86 and x86_64 archs. 

Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com>

---
 arch/ia64/include/asm/siginfo.h    |    5 -----
 arch/powerpc/include/asm/siginfo.h |    5 -----
 arch/x86/kernel/ptrace.c           |    7 ++++---
 arch/x86/kernel/traps_32.c         |    4 +++-
 arch/x86/kernel/traps_64.c         |    2 +-
 include/asm-generic/siginfo.h      |    2 ++
 include/asm-parisc/siginfo.h       |    5 -----
 include/asm-x86/ptrace.h           |    2 +-
 include/asm-x86/traps.h            |   10 ++++++++++
 9 files changed, 21 insertions(+), 21 deletions(-)

Index: linux-2.6.27-rc7/arch/ia64/include/asm/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/arch/ia64/include/asm/siginfo.h
+++ linux-2.6.27-rc7/arch/ia64/include/asm/siginfo.h
@@ -113,11 +113,6 @@ typedef struct siginfo {
 #undef NSIGSEGV
 #define NSIGSEGV	3
 
-/*
- * SIGTRAP si_codes
- */
-#define TRAP_BRANCH	(__SI_FAULT|3)	/* process taken branch trap */
-#define TRAP_HWBKPT	(__SI_FAULT|4)	/* hardware breakpoint or watchpoint */
 #undef NSIGTRAP
 #define NSIGTRAP	4
 
Index: linux-2.6.27-rc7/arch/powerpc/include/asm/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/arch/powerpc/include/asm/siginfo.h
+++ linux-2.6.27-rc7/arch/powerpc/include/asm/siginfo.h
@@ -15,11 +15,6 @@
 
 #include <asm-generic/siginfo.h>
 
-/*
- * SIGTRAP si_codes
- */
-#define TRAP_BRANCH	(__SI_FAULT|3)	/* process taken branch trap */
-#define TRAP_HWBKPT	(__SI_FAULT|4)	/* hardware breakpoint or watchpoint */
 #undef NSIGTRAP
 #define NSIGTRAP	4
 
Index: linux-2.6.27-rc7/arch/x86/kernel/traps_32.c
===================================================================
--- linux-2.6.27-rc7.orig/arch/x86/kernel/traps_32.c
+++ linux-2.6.27-rc7/arch/x86/kernel/traps_32.c
@@ -891,6 +891,7 @@ void __kprobes do_debug(struct pt_regs *
 {
 	struct task_struct *tsk = current;
 	unsigned int condition;
+	int si_code;
 
 	trace_hardirqs_fixup();
 
@@ -935,8 +936,9 @@ void __kprobes do_debug(struct pt_regs *
 			goto clear_TF_reenable;
 	}
 
+	si_code = get_si_code((unsigned long*)&condition);
 	/* Ok, finally something we can handle */
-	send_sigtrap(tsk, regs, error_code);
+	send_sigtrap(tsk, regs, error_code, si_code);
 
 	/*
 	 * Disable additional traps. They'll be re-enabled when
Index: linux-2.6.27-rc7/arch/x86/kernel/traps_64.c
===================================================================
--- linux-2.6.27-rc7.orig/arch/x86/kernel/traps_64.c
+++ linux-2.6.27-rc7/arch/x86/kernel/traps_64.c
@@ -936,7 +936,7 @@ asmlinkage void __kprobes do_debug(struc
 	tsk->thread.error_code = error_code;
 	info.si_signo = SIGTRAP;
 	info.si_errno = 0;
-	info.si_code = TRAP_BRKPT;
+	info.si_code = get_si_code(&condition);
 	info.si_addr = user_mode(regs) ? (void __user *)regs->ip : NULL;
 	force_sig_info(SIGTRAP, &info, tsk);
 
Index: linux-2.6.27-rc7/include/asm-generic/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-generic/siginfo.h
+++ linux-2.6.27-rc7/include/asm-generic/siginfo.h
@@ -199,6 +199,8 @@ typedef struct siginfo {
  */
 #define TRAP_BRKPT	(__SI_FAULT|1)	/* process breakpoint */
 #define TRAP_TRACE	(__SI_FAULT|2)	/* process trace trap */
+#define TRAP_BRANCH     (__SI_FAULT|3)  /* process taken branch trap */
+#define TRAP_HWBKPT     (__SI_FAULT|4)  /* hardware breakpoint or watchpoint 
*/
 #define NSIGTRAP	2
 
 /*
Index: linux-2.6.27-rc7/include/asm-parisc/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-parisc/siginfo.h
+++ linux-2.6.27-rc7/include/asm-parisc/siginfo.h
@@ -3,11 +3,6 @@
 
 #include <asm-generic/siginfo.h>
 
-/*
- * SIGTRAP si_codes
- */
-#define TRAP_BRANCH	(__SI_FAULT|3)	/* process taken branch trap */
-#define TRAP_HWBKPT	(__SI_FAULT|4)	/* hardware breakpoint or watchpoint */
 #undef NSIGTRAP
 #define NSIGTRAP	4
 
Index: linux-2.6.27-rc7/arch/x86/kernel/ptrace.c
===================================================================
--- linux-2.6.27-rc7.orig/arch/x86/kernel/ptrace.c
+++ linux-2.6.27-rc7/arch/x86/kernel/ptrace.c
@@ -1357,7 +1357,8 @@ const struct user_regset_view *task_user
 #endif
 }
 
-void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int 
error_code)
+void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int 
error_code,
+							          int si_code)
 {
 	struct siginfo info;
 
@@ -1366,7 +1367,7 @@ void send_sigtrap(struct task_struct *ts
 
 	memset(&info, 0, sizeof(info));
 	info.si_signo = SIGTRAP;
-	info.si_code = TRAP_BRKPT;
+	info.si_code = si_code;
 
 	/* User-mode ip? */
 	info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL;
@@ -1476,5 +1477,5 @@ asmregparm void syscall_trace_leave(stru
 	 */
 	if (test_thread_flag(TIF_SINGLESTEP) &&
 	    (current->ptrace & PT_PTRACED))
-		send_sigtrap(current, regs, 0);
+		send_sigtrap(current, regs, 0, TRAP_BRKPT);
 }
Index: linux-2.6.27-rc7/include/asm-x86/traps.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-x86/traps.h
+++ linux-2.6.27-rc7/include/asm-x86/traps.h
@@ -36,6 +36,16 @@ void do_invalid_op(struct pt_regs *, lon
 void do_general_protection(struct pt_regs *, long);
 void do_nmi(struct pt_regs *, long);
 
+int get_si_code(unsigned long *condition)
+{
+	if (*condition & DR_STEP)
+		return TRAP_TRACE;
+	else if (*condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
+		return TRAP_HWBKPT;
+	else
+		return TRAP_BRKPT;
+}
+
 extern int panic_on_unrecovered_nmi;
 extern int kstack_depth_to_print;
 
Index: linux-2.6.27-rc7/include/asm-x86/ptrace.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-x86/ptrace.h
+++ linux-2.6.27-rc7/include/asm-x86/ptrace.h
@@ -143,7 +143,7 @@ convert_ip_to_linear(struct task_struct 
 
 #ifdef CONFIG_X86_32
 extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
-			 int error_code);
+			 int error_code, int si_code);
 #else
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 #endif

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Subject: Re: [RFC][PATCH] Demultiplexing SIGTRAP signal
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* Srinivasa Ds <srinivasa@in.ibm.com> wrote:

> --- linux-2.6.27-rc7.orig/arch/ia64/include/asm/siginfo.h
> +++ linux-2.6.27-rc7/arch/ia64/include/asm/siginfo.h

please do not send patches that modify include/asm/ files, the 
include/asm-x86/ file should be modified instead.

(this problem will go away in v2.6.28 when we'll move include/asm-x86/ 
to arch/x86/include/)

> +	si_code = get_si_code((unsigned long*)&condition);

coding style problem: please run checkpatch.

>  	/* Ok, finally something we can handle */
> -	send_sigtrap(tsk, regs, error_code);
> +	send_sigtrap(tsk, regs, error_code, si_code);

ok, that looks much nicer.

> -	info.si_code = TRAP_BRKPT;
> +	info.si_code = get_si_code(&condition);

no need to pass in the condition by reference.

> +#define TRAP_BRANCH     (__SI_FAULT|3)  /* process taken branch trap */
> +#define TRAP_HWBKPT     (__SI_FAULT|4)  /* hardware breakpoint or watchpoint 
> */

stray linewrapped patch line - see Documentation/email-clients.txt.

> -void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int 
> error_code)
> +void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int 
> error_code,

linewrap.

> +++ linux-2.6.27-rc7/include/asm-x86/traps.h
> @@ -36,6 +36,16 @@ void do_invalid_op(struct pt_regs *, lon
>  void do_general_protection(struct pt_regs *, long);
>  void do_nmi(struct pt_regs *, long);
>  
> +int get_si_code(unsigned long *condition)
> +{
> +	if (*condition & DR_STEP)
> +		return TRAP_TRACE;

please declare inline functions explicitly as 'static inline'.

	Ingo
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Subject: Re: [RFC][PATCH] Demultiplexing SIGTRAP signal
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On Monday 22 September 2008 20:24:04 Ingo Molnar wrote:
> * Srinivasa Ds <srinivasa@in.ibm.com> wrote:
> > --- linux-2.6.27-rc7.orig/arch/ia64/include/asm/siginfo.h
> > +++ linux-2.6.27-rc7/arch/ia64/include/asm/siginfo.h
>
> please do not send patches that modify include/asm/ files, the
> include/asm-x86/ file should be modified instead.
>
> (this problem will go away in v2.6.28 when we'll move include/asm-x86/
> to arch/x86/include/)
>

Ingo, Sorry if I have confused you. Arch specific header files of ia64 and powerpc are 
already moved to arch/ia64/include and arch/powerpc/include dirs.
So I have developed patch against these files. So Resending patch again. 

Currently a SIGTRAP can denote any one of below reasons.
	- Breakpoint hit
	- H/W debug register hit
	- Single step
	- Signal sent through kill() or rasie()

Architectures like powerpc/parisc provides infrastructure to demultiplex
SIGTRAP signal by passing down the information for receiving SIGTRAP through
si_code of siginfot_t structure. Here is an attempt is generalise this 
infrastructure by extending it to x86 and x86_64 archs. 

Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com>


---
 arch/ia64/include/asm/siginfo.h    |    5 -----
 arch/powerpc/include/asm/siginfo.h |    5 -----
 arch/x86/kernel/ptrace.c           |    7 ++++---
 arch/x86/kernel/traps_32.c         |    4 +++-
 arch/x86/kernel/traps_64.c         |    2 +-
 include/asm-generic/siginfo.h      |    2 ++
 include/asm-parisc/siginfo.h       |    5 -----
 include/asm-x86/ptrace.h           |    2 +-
 include/asm-x86/traps.h            |   10 ++++++++++
 9 files changed, 21 insertions(+), 21 deletions(-)

Index: linux-2.6.27-rc7/arch/ia64/include/asm/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/arch/ia64/include/asm/siginfo.h
+++ linux-2.6.27-rc7/arch/ia64/include/asm/siginfo.h
@@ -113,11 +113,6 @@ typedef struct siginfo {
 #undef NSIGSEGV
 #define NSIGSEGV	3
 
-/*
- * SIGTRAP si_codes
- */
-#define TRAP_BRANCH	(__SI_FAULT|3)	/* process taken branch trap */
-#define TRAP_HWBKPT	(__SI_FAULT|4)	/* hardware breakpoint or watchpoint */
 #undef NSIGTRAP
 #define NSIGTRAP	4
 
Index: linux-2.6.27-rc7/arch/powerpc/include/asm/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/arch/powerpc/include/asm/siginfo.h
+++ linux-2.6.27-rc7/arch/powerpc/include/asm/siginfo.h
@@ -15,11 +15,6 @@
 
 #include <asm-generic/siginfo.h>
 
-/*
- * SIGTRAP si_codes
- */
-#define TRAP_BRANCH	(__SI_FAULT|3)	/* process taken branch trap */
-#define TRAP_HWBKPT	(__SI_FAULT|4)	/* hardware breakpoint or watchpoint */
 #undef NSIGTRAP
 #define NSIGTRAP	4
 
Index: linux-2.6.27-rc7/arch/x86/kernel/traps_32.c
===================================================================
--- linux-2.6.27-rc7.orig/arch/x86/kernel/traps_32.c
+++ linux-2.6.27-rc7/arch/x86/kernel/traps_32.c
@@ -891,6 +891,7 @@ void __kprobes do_debug(struct pt_regs *
 {
 	struct task_struct *tsk = current;
 	unsigned int condition;
+	int si_code;
 
 	trace_hardirqs_fixup();
 
@@ -935,8 +936,9 @@ void __kprobes do_debug(struct pt_regs *
 			goto clear_TF_reenable;
 	}
 
+	si_code = get_si_code((unsigned long)condition);
 	/* Ok, finally something we can handle */
-	send_sigtrap(tsk, regs, error_code);
+	send_sigtrap(tsk, regs, error_code, si_code);
 
 	/*
 	 * Disable additional traps. They'll be re-enabled when
Index: linux-2.6.27-rc7/arch/x86/kernel/traps_64.c
===================================================================
--- linux-2.6.27-rc7.orig/arch/x86/kernel/traps_64.c
+++ linux-2.6.27-rc7/arch/x86/kernel/traps_64.c
@@ -936,7 +936,7 @@ asmlinkage void __kprobes do_debug(struc
 	tsk->thread.error_code = error_code;
 	info.si_signo = SIGTRAP;
 	info.si_errno = 0;
-	info.si_code = TRAP_BRKPT;
+	info.si_code = get_si_code(condition);
 	info.si_addr = user_mode(regs) ? (void __user *)regs->ip : NULL;
 	force_sig_info(SIGTRAP, &info, tsk);
 
Index: linux-2.6.27-rc7/include/asm-generic/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-generic/siginfo.h
+++ linux-2.6.27-rc7/include/asm-generic/siginfo.h
@@ -199,6 +199,8 @@ typedef struct siginfo {
  */
 #define TRAP_BRKPT	(__SI_FAULT|1)	/* process breakpoint */
 #define TRAP_TRACE	(__SI_FAULT|2)	/* process trace trap */
+#define TRAP_BRANCH     (__SI_FAULT|3)  /* process taken branch trap */
+#define TRAP_HWBKPT     (__SI_FAULT|4)  /* hardware breakpoint/watchpoint */
 #define NSIGTRAP	2
 
 /*
Index: linux-2.6.27-rc7/include/asm-parisc/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-parisc/siginfo.h
+++ linux-2.6.27-rc7/include/asm-parisc/siginfo.h
@@ -3,11 +3,6 @@
 
 #include <asm-generic/siginfo.h>
 
-/*
- * SIGTRAP si_codes
- */
-#define TRAP_BRANCH	(__SI_FAULT|3)	/* process taken branch trap */
-#define TRAP_HWBKPT	(__SI_FAULT|4)	/* hardware breakpoint or watchpoint */
 #undef NSIGTRAP
 #define NSIGTRAP	4
 
Index: linux-2.6.27-rc7/arch/x86/kernel/ptrace.c
===================================================================
--- linux-2.6.27-rc7.orig/arch/x86/kernel/ptrace.c
+++ linux-2.6.27-rc7/arch/x86/kernel/ptrace.c
@@ -1357,7 +1357,8 @@ const struct user_regset_view *task_user
 #endif
 }
 
-void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code)
+void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
+					 int error_code, int si_code)
 {
 	struct siginfo info;
 
@@ -1366,7 +1367,7 @@ void send_sigtrap(struct task_struct *ts
 
 	memset(&info, 0, sizeof(info));
 	info.si_signo = SIGTRAP;
-	info.si_code = TRAP_BRKPT;
+	info.si_code = si_code;
 
 	/* User-mode ip? */
 	info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL;
@@ -1476,5 +1477,5 @@ asmregparm void syscall_trace_leave(stru
 	 */
 	if (test_thread_flag(TIF_SINGLESTEP) &&
 	    (current->ptrace & PT_PTRACED))
-		send_sigtrap(current, regs, 0);
+		send_sigtrap(current, regs, 0, TRAP_BRKPT);
 }
Index: linux-2.6.27-rc7/include/asm-x86/traps.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-x86/traps.h
+++ linux-2.6.27-rc7/include/asm-x86/traps.h
@@ -36,6 +36,16 @@ void do_invalid_op(struct pt_regs *, lon
 void do_general_protection(struct pt_regs *, long);
 void do_nmi(struct pt_regs *, long);
 
+static inline int get_si_code(unsigned long condition)
+{
+	if (condition & DR_STEP)
+		return TRAP_TRACE;
+	else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
+		return TRAP_HWBKPT;
+	else
+		return TRAP_BRKPT;
+}
+
 extern int panic_on_unrecovered_nmi;
 extern int kstack_depth_to_print;
 
Index: linux-2.6.27-rc7/include/asm-x86/ptrace.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-x86/ptrace.h
+++ linux-2.6.27-rc7/include/asm-x86/ptrace.h
@@ -143,7 +143,7 @@ convert_ip_to_linear(struct task_struct 
 
 #ifdef CONFIG_X86_32
 extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
-			 int error_code);
+			 int error_code, int si_code);
 #else
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 #endif
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From - Thu Nov 08 21:02:55 2018
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Subject: Re: [RFC][PATCH] Demultiplexing SIGTRAP signal
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Cc: Roland McGrath <roland@redhat.com>, linux-kernel@vger.kernel.org,
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To: Srinivasa Ds <srinivasa@in.ibm.com>
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* Srinivasa Ds <srinivasa@in.ibm.com> wrote:

> On Monday 22 September 2008 20:24:04 Ingo Molnar wrote:
> > * Srinivasa Ds <srinivasa@in.ibm.com> wrote:
> > > --- linux-2.6.27-rc7.orig/arch/ia64/include/asm/siginfo.h
> > > +++ linux-2.6.27-rc7/arch/ia64/include/asm/siginfo.h
> >
> > please do not send patches that modify include/asm/ files, the
> > include/asm-x86/ file should be modified instead.
> >
> > (this problem will go away in v2.6.28 when we'll move include/asm-x86/
> > to arch/x86/include/)
> >
> 
> Ingo, Sorry if I have confused you. [...]

hah, indeed - i mis-read them as include/asm/.

> Currently a SIGTRAP can denote any one of below reasons.
> 	- Breakpoint hit
> 	- H/W debug register hit
> 	- Single step
> 	- Signal sent through kill() or rasie()
> 
> Architectures like powerpc/parisc provides infrastructure to 
> demultiplex SIGTRAP signal by passing down the information for 
> receiving SIGTRAP through si_code of siginfot_t structure. Here is an 
> attempt is generalise this infrastructure by extending it to x86 and 
> x86_64 archs.

applied to [the new topic] tip/core/signal, thanks Srinivasa! There are 
some other pending x86 signal changes already, so i based 
tip/core/signal on tip/x86/signal.

Roland, any opinion on this change?

	Ingo
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From: Ingo Molnar <mingo@elte.hu>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC][PATCH] Demultiplexing SIGTRAP signal
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Cc: Roland McGrath <roland@redhat.com>, linux-kernel@vger.kernel.org,
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To: Srinivasa Ds <srinivasa@in.ibm.com>
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* Ingo Molnar <mingo@elte.hu> wrote:

> > Currently a SIGTRAP can denote any one of below reasons.
> > 	- Breakpoint hit
> > 	- H/W debug register hit
> > 	- Single step
> > 	- Signal sent through kill() or rasie()
> > 
> > Architectures like powerpc/parisc provides infrastructure to 
> > demultiplex SIGTRAP signal by passing down the information for 
> > receiving SIGTRAP through si_code of siginfot_t structure. Here is an 
> > attempt is generalise this infrastructure by extending it to x86 and 
> > x86_64 archs.
> 
> applied to [the new topic] tip/core/signal, thanks Srinivasa! There 
> are some other pending x86 signal changes already, so i based 
> tip/core/signal on tip/x86/signal.

-tip testing found the following build error with the attached config:

In file included from arch/x86/mm/fault.c:41:
include/asm/traps.h: In function ‘get_si_code’:
include/asm/traps.h:41: error: ‘DR_STEP’ undeclared (first use in this function)
include/asm/traps.h:41: error: (Each undeclared identifier is reported only once
include/asm/traps.h:41: error: for each function it appears in.)
include/asm/traps.h:43: error: ‘DR_TRAP0’ undeclared (first use in this function)
include/asm/traps.h:43: error: ‘DR_TRAP1’ undeclared (first use in this function)
include/asm/traps.h:43: error: ‘DR_TRAP2’ undeclared (first use in this function)
include/asm/traps.h:43: error: ‘DR_TRAP3’ undeclared (first use in this function)

	Ingo

--17pEHd4RhPHOinZp
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=config

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.27-rc7
# Tue Sep 23 13:27:39 2008
#
CONFIG_64BIT=y
# CONFIG_X86_32 is not set
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
# CONFIG_GENERIC_LOCKBREAK is not set
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_FAST_CMPXCHG_LOCAL=y
CONFIG_MMU=y
CONFIG_ZONE_DMA=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
# CONFIG_GENERIC_GPIO is not set
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_HAVE_CPUMASK_OF_CPU_MAP=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ZONE_DMA32=y
CONFIG_ARCH_POPULATES_NODE_MAP=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_AOUT=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_X86_SMP=y
CONFIG_X86_64_SMP=y
CONFIG_X86_HT=y
CONFIG_X86_BIOS_REBOOT=y
CONFIG_X86_TRAMPOLINE=y
# CONFIG_KTIME_SCALAR is not set
CONFIG_BOOTPARAM_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
# CONFIG_EXPERIMENTAL is not set
CONFIG_BROKEN_BOOT_ALLOWED3=y
# CONFIG_BROKEN_BOOT_ALLOWED2 is not set
CONFIG_BROKEN_BOOT_ALLOWED=y
CONFIG_BROKEN_BOOT=y
CONFIG_BROKEN_BOOT_EUROPE=y
CONFIG_BROKEN_BOOT_TITAN=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
# CONFIG_TASKSTATS is not set
CONFIG_AUDIT=y
# CONFIG_AUDITSYSCALL is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=20
CONFIG_CGROUPS=y
CONFIG_CGROUP_DEBUG=y
# CONFIG_CGROUP_NS is not set
CONFIG_CPUSETS=y
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_MM_OWNER=y
CONFIG_CGROUP_MEM_RES_CTLR=y
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_PROC_PID_CPUSET is not set
CONFIG_RELAY=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_FASTBOOT=y
CONFIG_SYSCTL=y
# CONFIG_EMBEDDED is not set
CONFIG_UID16=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_COMPAT_BRK=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
CONFIG_MARKERS=y
CONFIG_OPROFILE=y
# CONFIG_OPROFILE_IBS is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
# CONFIG_HAVE_DMA_ATTRS is not set
CONFIG_USE_GENERIC_SMP_HELPERS=y
# CONFIG_HAVE_CLK is not set
CONFIG_HAVE_DYN_ARRAY=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
# CONFIG_MODULES is not set
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_AS is not set
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_CLASSIC_RCU=y

#
# Processor type and features
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ=y
CONFIG_BOOTPARAM_NO_HZ_OFF=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
# CONFIG_BOOTPARAM_HIGHRES_OFF is not set
CONFIG_SMP_SUPPORT=y
# CONFIG_HAVE_SPARSE_IRQ is not set
# CONFIG_X86_MPPARSE is not set
CONFIG_UP_WANTED_1=y
CONFIG_UP_WANTED_2=y
# CONFIG_UP_WANTED is not set
CONFIG_SMP=y
CONFIG_X86_PC=y
# CONFIG_X86_ELAN is not set
# CONFIG_X86_VOYAGER is not set
# CONFIG_X86_GENERICARCH is not set
# CONFIG_X86_VSMP is not set
# CONFIG_PARAVIRT_GUEST is not set
CONFIG_MEMTEST=y
# CONFIG_M386 is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
# CONFIG_M686 is not set
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
# CONFIG_MPENTIUM4 is not set
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP2 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MGEODEGX1 is not set
# CONFIG_MGEODE_LX is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_MVIAC7 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_CPU=y
CONFIG_X86_L1_CACHE_BYTES=128
CONFIG_X86_INTERNODE_CACHE_BYTES=128
CONFIG_X86_CMPXCHG=y
CONFIG_X86_L1_CACHE_SHIFT=7
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_PROCESSOR_SELECT=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR_64=y
# CONFIG_X86_DS is not set
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
CONFIG_GART_IOMMU=y
CONFIG_AMD_IOMMU=y
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
CONFIG_NR_CPUS=8
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
# CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS is not set
CONFIG_X86_MCE=y
CONFIG_X86_MCE_INTEL=y
CONFIG_X86_MCE_AMD=y
CONFIG_I8K=y
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=y
CONFIG_MICROCODE_AMD=y
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=y
# CONFIG_X86_CPUID is not set
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_NUMA=y
CONFIG_K8_NUMA=y
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NODES_SPAN_OTHER_NODES=y
CONFIG_NUMA_EMU=y
CONFIG_NODES_SHIFT=6
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
# CONFIG_DISCONTIGMEM_MANUAL is not set
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMORY_PRESENT=y
# CONFIG_SPARSEMEM_STATIC is not set
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
# CONFIG_SPARSEMEM_VMEMMAP is not set

#
# Memory hotplug is currently incompatible with Software Suspend
#
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_MIGRATION=y
CONFIG_RESOURCES_64BIT=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
CONFIG_MMU_NOTIFIER=y
# CONFIG_X86_CHECK_BIOS_CORRUPTION is not set
CONFIG_X86_RESERVE_LOW_64K=y
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=0
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_EFI=y
CONFIG_SECCOMP=y
CONFIG_CC_STACKPROTECTOR_ALL=y
CONFIG_CC_STACKPROTECTOR=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_PHYSICAL_START=0x200000
CONFIG_PHYSICAL_ALIGN=0x200000
CONFIG_HOTPLUG_CPU=y
# CONFIG_COMPAT_VDSO is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y

#
# Power management options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
CONFIG_PM_SLEEP_SMP=y
CONFIG_PM_SLEEP=y
# CONFIG_SUSPEND is not set
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION=""
CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_PROCFS=y
CONFIG_ACPI_PROCFS_POWER=y
# CONFIG_ACPI_SYSFS_POWER is not set
# CONFIG_ACPI_PROC_EVENT is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=y
CONFIG_ACPI_FAN=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_ASUS is not set
CONFIG_ACPI_TOSHIBA=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_EC=y
CONFIG_ACPI_PCI_SLOT=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_SYSTEM=y
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_SBS=y

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
# CONFIG_CPU_FREQ_DEBUG is not set
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_STAT_DETAILS=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set

#
# CPUFreq processor drivers
#
# CONFIG_X86_ACPI_CPUFREQ is not set
CONFIG_X86_POWERNOW_K8=y
CONFIG_X86_POWERNOW_K8_ACPI=y
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
# CONFIG_X86_P4_CLOCKMOD is not set

#
# shared options
#
CONFIG_X86_ACPI_CPUFREQ_PROC_INTF=y
# CONFIG_X86_SPEEDSTEP_LIB is not set
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_BOOTPARAM_NMI_WATCHDOG_BIT_0 is not set
CONFIG_BOOTPARAM_NMI_WATCHDOG_BIT_1=y
CONFIG_BOOTPARAM_NOLAPIC_TIMER=y
CONFIG_BOOTPARAM_LAPIC=y
# CONFIG_BOOTPARAM_HPET_DISABLE is not set
CONFIG_BOOTPARAM_IDLE_MWAIT=y
CONFIG_BOOTPARAM_IDLE_POLL=y
CONFIG_BOOTPARAM_HIGHMEM_512M=y
CONFIG_BOOTPARAM_NOPAT=y
CONFIG_BOOTPARAM_NOTSC=y
# CONFIG_BOOTPARAM_PCI_NOACPI is not set
CONFIG_BOOTPARAM_PCI_NOMSI=y

#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_DOMAINS=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_ARCH_SUPPORTS_MSI=y
CONFIG_PCI_MSI=y
CONFIG_PCI_LEGACY=y
CONFIG_PCI_DEBUG=y
# CONFIG_HT_IRQ is not set
CONFIG_ISA_DMA_API=y
CONFIG_K8_NB=y
CONFIG_PCCARD=y
CONFIG_PCMCIA_DEBUG=y
CONFIG_PCMCIA=y
CONFIG_PCMCIA_IOCTL=y
CONFIG_CARDBUS=y

#
# PC-card bridges
#
CONFIG_YENTA=y
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
# CONFIG_PD6729 is not set
CONFIG_I82092=y
CONFIG_PCCARD_NONSTATIC=y
CONFIG_HOTPLUG_PCI=y
# CONFIG_HOTPLUG_PCI_FAKE is not set
# CONFIG_HOTPLUG_PCI_ACPI is not set
# CONFIG_HOTPLUG_PCI_CPCI is not set
CONFIG_HOTPLUG_PCI_SHPC=y

#
# Executable file formats / Emulations
#
# CONFIG_BINFMT_ELF is not set
CONFIG_COMPAT_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set
CONFIG_IA32_EMULATION=y
# CONFIG_IA32_AOUT is not set
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_NET_KEY=y
# CONFIG_INET is not set
CONFIG_NETWORK_SECMARK=y
# CONFIG_NETFILTER is not set
# CONFIG_ATM is not set
CONFIG_STP=y
CONFIG_GARP=y
CONFIG_BRIDGE=y
CONFIG_VLAN_8021Q=y
CONFIG_VLAN_8021Q_GVRP=y
# CONFIG_DECNET is not set
CONFIG_LLC=y
CONFIG_LLC2=y
CONFIG_IPX=y
# CONFIG_IPX_INTERN is not set
CONFIG_ATALK=y
CONFIG_DEV_APPLETALK=y
CONFIG_IPDDP=y
CONFIG_IPDDP_ENCAP=y
# CONFIG_IPDDP_DECAP is not set
# CONFIG_NET_SCHED is not set

#
# Network testing
#
CONFIG_NET_PKTGEN=y
# CONFIG_HAMRADIO is not set
CONFIG_CAN=y
CONFIG_CAN_RAW=y
# CONFIG_CAN_BCM is not set

#
# CAN Device Drivers
#
CONFIG_CAN_VCAN=y
# CONFIG_CAN_DEBUG_DEVICES is not set
# CONFIG_IRDA is not set
CONFIG_BT=y
CONFIG_BT_L2CAP=y
CONFIG_BT_SCO=y
# CONFIG_BT_RFCOMM is not set
CONFIG_BT_BNEP=y
CONFIG_BT_BNEP_MC_FILTER=y
# CONFIG_BT_BNEP_PROTO_FILTER is not set
CONFIG_BT_HIDP=y

#
# Bluetooth device drivers
#
CONFIG_BT_HCIBTUSB=y
CONFIG_BT_HCIBTSDIO=y
CONFIG_BT_HCIUART=y
CONFIG_BT_HCIUART_H4=y
CONFIG_BT_HCIUART_BCSP=y
CONFIG_BT_HCIUART_LL=y
# CONFIG_BT_HCIBCM203X is not set
CONFIG_BT_HCIBPA10X=y
# CONFIG_BT_HCIBFUSB is not set
CONFIG_BT_HCIDTL1=y
# CONFIG_BT_HCIBT3C is not set
# CONFIG_BT_HCIBLUECARD is not set
# CONFIG_BT_HCIBTUART is not set
# CONFIG_BT_HCIVHCI is not set

#
# Wireless
#
CONFIG_CFG80211=y
# CONFIG_NL80211 is not set
CONFIG_WIRELESS_EXT=y
CONFIG_WIRELESS_EXT_SYSFS=y
CONFIG_MAC80211=y

#
# Rate control algorithm selection
#
CONFIG_MAC80211_RC_PID=y
CONFIG_MAC80211_RC_DEFAULT_PID=y
CONFIG_MAC80211_RC_DEFAULT="pid"
CONFIG_MAC80211_LEDS=y
# CONFIG_MAC80211_DEBUGFS is not set
CONFIG_MAC80211_DEBUG_MENU=y
CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT=y
CONFIG_MAC80211_NOINLINE=y
# CONFIG_MAC80211_VERBOSE_DEBUG is not set
CONFIG_MAC80211_HT_DEBUG=y
CONFIG_MAC80211_TKIP_DEBUG=y
# CONFIG_MAC80211_IBSS_DEBUG is not set
# CONFIG_MAC80211_VERBOSE_PS_DEBUG is not set
# CONFIG_MAC80211_LOWTX_FRAME_DUMP is not set
# CONFIG_MAC80211_VERBOSE_SPECT_MGMT_DEBUG is not set
CONFIG_IEEE80211=y
# CONFIG_IEEE80211_DEBUG is not set
CONFIG_IEEE80211_CRYPT_WEP=y
CONFIG_IEEE80211_CRYPT_CCMP=y
CONFIG_IEEE80211_CRYPT_TKIP=y
CONFIG_RFKILL=y
# CONFIG_RFKILL_INPUT is not set
CONFIG_RFKILL_LEDS=y

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
# CONFIG_MTD is not set
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_PARPORT_SERIAL=y
CONFIG_PARPORT_PC_PCMCIA=y
# CONFIG_PARPORT_GSC is not set
CONFIG_PARPORT_AX88796=y
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
CONFIG_PNP=y
CONFIG_PNP_DEBUG=y

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_FD is not set
CONFIG_PARIDE=y

#
# Parallel IDE high-level drivers
#
CONFIG_PARIDE_PD=y
# CONFIG_PARIDE_PCD is not set
CONFIG_PARIDE_PF=y
# CONFIG_PARIDE_PT is not set
CONFIG_PARIDE_PG=y

#
# Parallel IDE protocol modules
#
CONFIG_PARIDE_ATEN=y
CONFIG_PARIDE_BPCK=y
CONFIG_PARIDE_COMM=y
CONFIG_PARIDE_DSTR=y
CONFIG_PARIDE_FIT2=y
CONFIG_PARIDE_FIT3=y
CONFIG_PARIDE_EPAT=y
CONFIG_PARIDE_EPIA=y
# CONFIG_PARIDE_FRIQ is not set
CONFIG_PARIDE_FRPW=y
CONFIG_PARIDE_KBIC=y
CONFIG_PARIDE_KTTI=y
CONFIG_PARIDE_ON20=y
CONFIG_PARIDE_ON26=y
CONFIG_BLK_CPQ_DA=y
CONFIG_BLK_CPQ_CISS_DA=y
CONFIG_CISS_SCSI_TAPE=y
CONFIG_BLK_DEV_DAC960=y
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_SX8=y
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=4096
# CONFIG_BLK_DEV_XIP is not set
CONFIG_CDROM_PKTCDVD=y
CONFIG_CDROM_PKTCDVD_BUFFERS=8
CONFIG_ATA_OVER_ETH=y
CONFIG_BLK_DEV_HD=y
# CONFIG_MISC_DEVICES is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_TIMINGS=y
CONFIG_IDE_ATAPI=y
CONFIG_BLK_DEV_IDE_SATA=y
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
# CONFIG_BLK_DEV_IDECS is not set
# CONFIG_BLK_DEV_DELKIN is not set
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
CONFIG_BLK_DEV_IDETAPE=y
# CONFIG_BLK_DEV_IDEFLOPPY is not set
CONFIG_BLK_DEV_IDESCSI=y
CONFIG_BLK_DEV_IDEACPI=y
CONFIG_IDE_TASK_IOCTL=y
# CONFIG_IDE_PROC_FS is not set

#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_PLATFORM=y
# CONFIG_BLK_DEV_CMD640 is not set
CONFIG_BLK_DEV_IDEPNP=y
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
CONFIG_BLK_DEV_OFFBOARD=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_RZ1000=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_BLK_DEV_AEC62XX=y
CONFIG_BLK_DEV_ALI15X3=y
CONFIG_BLK_DEV_AMD74XX=y
CONFIG_BLK_DEV_ATIIXP=y
CONFIG_BLK_DEV_CMD64X=y
CONFIG_BLK_DEV_TRIFLEX=y
CONFIG_BLK_DEV_CS5530=y
CONFIG_BLK_DEV_HPT366=y
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
CONFIG_BLK_DEV_PIIX=y
CONFIG_BLK_DEV_IT8213=y
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=y
CONFIG_BLK_DEV_PDC202XX_OLD=y
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
CONFIG_BLK_DEV_SVWKS=y
CONFIG_BLK_DEV_SIIMAGE=y
# CONFIG_BLK_DEV_SIS5513 is not set
CONFIG_BLK_DEV_SLC90E66=y
CONFIG_BLK_DEV_TRM290=y
CONFIG_BLK_DEV_VIA82CXXX=y
CONFIG_BLK_DEV_TC86C001=y
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
CONFIG_CHR_DEV_OSST=y
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_CHR_DEV_SCH is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
CONFIG_SCSI_FC_ATTRS=y
CONFIG_SCSI_ISCSI_ATTRS=y
CONFIG_SCSI_SAS_ATTRS=y
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
CONFIG_SCSI_AACRAID=y
# CONFIG_SCSI_AIC7XXX is not set
CONFIG_SCSI_AIC7XXX_OLD=y
# CONFIG_SCSI_AIC79XX is not set
CONFIG_SCSI_DPT_I2O=y
CONFIG_SCSI_ADVANSYS=y
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
CONFIG_MEGARAID_LEGACY=y
# CONFIG_MEGARAID_SAS is not set
CONFIG_SCSI_HPTIOP=y
CONFIG_SCSI_BUSLOGIC=y
CONFIG_SCSI_DMX3191D=y
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
CONFIG_SCSI_GDTH=y
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
CONFIG_SCSI_INIA100=y
# CONFIG_SCSI_PPA is not set
CONFIG_SCSI_IMM=y
CONFIG_SCSI_IZIP_EPP16=y
# CONFIG_SCSI_IZIP_SLOW_CTR is not set
CONFIG_SCSI_STEX=y
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
# CONFIG_SCSI_SYM53C8XX_MMIO is not set
CONFIG_SCSI_IPR=y
# CONFIG_SCSI_IPR_TRACE is not set
CONFIG_SCSI_IPR_DUMP=y
CONFIG_SCSI_QLOGIC_1280=y
# CONFIG_SCSI_QLA_FC is not set
CONFIG_SCSI_QLA_ISCSI=y
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_SRP is not set
CONFIG_SCSI_LOWLEVEL_PCMCIA=y
# CONFIG_SCSI_DH is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
# CONFIG_ATA_ACPI is not set
CONFIG_SATA_PMP=y
CONFIG_SATA_AHCI=y
CONFIG_SATA_SIL24=y
# CONFIG_ATA_SFF is not set
# CONFIG_MD is not set
CONFIG_FUSION=y
CONFIG_FUSION_SPI=y
CONFIG_FUSION_FC=y
CONFIG_FUSION_SAS=y
CONFIG_FUSION_MAX_SGE=128
# CONFIG_FUSION_CTL is not set
CONFIG_FUSION_LAN=y
# CONFIG_FUSION_LOGGING is not set

#
# IEEE 1394 (FireWire) support
#

#
# A new alternative FireWire stack is available with EXPERIMENTAL=y
#
CONFIG_IEEE1394=y
# CONFIG_IEEE1394_OHCI1394 is not set
CONFIG_IEEE1394_PCILYNX=y
CONFIG_IEEE1394_SBP2=y
# CONFIG_IEEE1394_ETH1394_ROM_ENTRY is not set
CONFIG_IEEE1394_RAWIO=y
# CONFIG_IEEE1394_VERBOSEDEBUG is not set
CONFIG_I2O=y
CONFIG_I2O_LCT_NOTIFY_ON_CHANGES=y
# CONFIG_I2O_EXT_ADAPTEC is not set
CONFIG_I2O_CONFIG=y
CONFIG_I2O_CONFIG_OLD_IOCTL=y
CONFIG_I2O_BUS=y
CONFIG_I2O_BLOCK=y
CONFIG_I2O_SCSI=y
CONFIG_I2O_PROC=y
CONFIG_MACINTOSH_DRIVERS=y
# CONFIG_MAC_EMUMOUSEBTN is not set
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
CONFIG_EQUALIZER=y
CONFIG_TUN=y
# CONFIG_VETH is not set
# CONFIG_NET_SB1000 is not set
# CONFIG_ARCNET is not set
# CONFIG_NET_ETHERNET is not set
CONFIG_MII=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set

#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
CONFIG_WLAN_80211=y
CONFIG_PCMCIA_RAYCS=y
CONFIG_IPW2100=y
CONFIG_IPW2100_MONITOR=y
CONFIG_IPW2100_DEBUG=y
CONFIG_IPW2200=y
CONFIG_IPW2200_MONITOR=y
CONFIG_IPW2200_RADIOTAP=y
CONFIG_IPW2200_PROMISCUOUS=y
# CONFIG_IPW2200_DEBUG is not set
CONFIG_LIBERTAS=y
CONFIG_LIBERTAS_USB=y
# CONFIG_LIBERTAS_CS is not set
CONFIG_LIBERTAS_SDIO=y
# CONFIG_LIBERTAS_DEBUG is not set
CONFIG_AIRO=y
CONFIG_HERMES=y
# CONFIG_PLX_HERMES is not set
CONFIG_TMD_HERMES=y
CONFIG_NORTEL_HERMES=y
# CONFIG_PCI_HERMES is not set
# CONFIG_PCMCIA_HERMES is not set
# CONFIG_PCMCIA_SPECTRUM is not set
CONFIG_ATMEL=y
CONFIG_PCI_ATMEL=y
CONFIG_PCMCIA_ATMEL=y
CONFIG_AIRO_CS=y
# CONFIG_USB_ZD1201 is not set
CONFIG_MAC80211_HWSIM=y
# CONFIG_ATH9K is not set
# CONFIG_IWLWIFI_LEDS is not set
# CONFIG_HOSTAP is not set
# CONFIG_B43 is not set
CONFIG_B43LEGACY=y
CONFIG_B43LEGACY_PCI_AUTOSELECT=y
CONFIG_B43LEGACY_PCICORE_AUTOSELECT=y
CONFIG_B43LEGACY_LEDS=y
CONFIG_B43LEGACY_DEBUG=y
CONFIG_B43LEGACY_DMA=y
CONFIG_B43LEGACY_PIO=y
CONFIG_B43LEGACY_DMA_AND_PIO_MODE=y
# CONFIG_B43LEGACY_DMA_MODE is not set
# CONFIG_B43LEGACY_PIO_MODE is not set

#
# USB Network Adapters
#
# CONFIG_USB_KAWETH is not set
CONFIG_USB_PEGASUS=y
# CONFIG_USB_USBNET is not set
CONFIG_USB_HSO=y
CONFIG_NET_PCMCIA=y
CONFIG_PCMCIA_3C589=y
CONFIG_PCMCIA_3C574=y
CONFIG_PCMCIA_FMVJ18X=y
CONFIG_PCMCIA_PCNET=y
# CONFIG_PCMCIA_NMCLAN is not set
CONFIG_PCMCIA_SMC91C92=y
CONFIG_PCMCIA_XIRC2PS=y
CONFIG_PCMCIA_AXNET=y
CONFIG_WAN=y
# CONFIG_HDLC is not set
CONFIG_DLCI=y
CONFIG_DLCI_MAX=8
# CONFIG_SBNI is not set
CONFIG_FDDI=y
# CONFIG_DEFXX is not set
# CONFIG_SKFP is not set
# CONFIG_PLIP is not set
CONFIG_PPP=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=y
CONFIG_PPP_SYNC_TTY=y
CONFIG_PPP_DEFLATE=y
CONFIG_PPP_BSDCOMP=y
CONFIG_SLIP=y
# CONFIG_SLIP_COMPRESSED is not set
CONFIG_SLHC=y
CONFIG_SLIP_SMART=y
CONFIG_SLIP_MODE_SLIP6=y
CONFIG_NET_FC=y
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
CONFIG_ISDN=y
CONFIG_ISDN_I4L=y
# CONFIG_ISDN_AUDIO is not set

#
# ISDN feature submodules
#
CONFIG_ISDN_DIVERSION=y

#
# ISDN4Linux hardware drivers
#

#
# Passive cards
#
CONFIG_ISDN_DRV_HISAX=y

#
# D-channel protocol features
#
CONFIG_HISAX_EURO=y
CONFIG_DE_AOC=y
CONFIG_HISAX_NO_SENDCOMPLETE=y
CONFIG_HISAX_NO_LLC=y
CONFIG_HISAX_NO_KEYPAD=y
CONFIG_HISAX_1TR6=y
CONFIG_HISAX_NI1=y
CONFIG_HISAX_MAX_CARDS=8

#
# HiSax supported cards
#
# CONFIG_HISAX_16_3 is not set
CONFIG_HISAX_TELESPCI=y
CONFIG_HISAX_S0BOX=y
CONFIG_HISAX_FRITZPCI=y
# CONFIG_HISAX_AVM_A1_PCMCIA is not set
CONFIG_HISAX_ELSA=y
CONFIG_HISAX_DIEHLDIVA=y
# CONFIG_HISAX_SEDLBAUER is not set
# CONFIG_HISAX_NETJET is not set
CONFIG_HISAX_NETJET_U=y
CONFIG_HISAX_NICCY=y
CONFIG_HISAX_BKM_A4T=y
# CONFIG_HISAX_SCT_QUADRO is not set
CONFIG_HISAX_GAZEL=y
CONFIG_HISAX_HFC_PCI=y
CONFIG_HISAX_W6692=y
CONFIG_HISAX_HFC_SX=y
# CONFIG_HISAX_DEBUG is not set

#
# HiSax PCMCIA card service modules
#
# CONFIG_HISAX_ELSA_CS is not set
# CONFIG_HISAX_AVM_A1_CS is not set

#
# HiSax sub driver modules
#

#
# Active cards
#
CONFIG_ISDN_DRV_GIGASET=y
CONFIG_GIGASET_BASE=y
CONFIG_GIGASET_M105=y
CONFIG_GIGASET_M101=y
CONFIG_GIGASET_DEBUG=y
# CONFIG_GIGASET_UNDOCREQ is not set
# CONFIG_ISDN_CAPI is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_POLLDEV=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
CONFIG_INPUT_EVBUG=y

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_SUNKBD=y
CONFIG_KEYBOARD_LKKBD=y
CONFIG_KEYBOARD_XTKBD=y
CONFIG_KEYBOARD_NEWTON=y
CONFIG_KEYBOARD_STOWAWAY=y
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_SERIAL=y
CONFIG_MOUSE_APPLETOUCH=y
CONFIG_MOUSE_BCM5974=y
# CONFIG_MOUSE_VSXXXAA is not set
CONFIG_INPUT_JOYSTICK=y
CONFIG_JOYSTICK_ANALOG=y
CONFIG_JOYSTICK_A3D=y
# CONFIG_JOYSTICK_ADI is not set
CONFIG_JOYSTICK_COBRA=y
CONFIG_JOYSTICK_GF2K=y
CONFIG_JOYSTICK_GRIP=y
# CONFIG_JOYSTICK_GRIP_MP is not set
CONFIG_JOYSTICK_GUILLEMOT=y
CONFIG_JOYSTICK_INTERACT=y
CONFIG_JOYSTICK_SIDEWINDER=y
# CONFIG_JOYSTICK_TMDC is not set
CONFIG_JOYSTICK_IFORCE=y
CONFIG_JOYSTICK_IFORCE_USB=y
CONFIG_JOYSTICK_IFORCE_232=y
# CONFIG_JOYSTICK_WARRIOR is not set
CONFIG_JOYSTICK_MAGELLAN=y
CONFIG_JOYSTICK_SPACEORB=y
# CONFIG_JOYSTICK_SPACEBALL is not set
# CONFIG_JOYSTICK_STINGER is not set
# CONFIG_JOYSTICK_TWIDJOY is not set
CONFIG_JOYSTICK_ZHENHUA=y
CONFIG_JOYSTICK_DB9=y
CONFIG_JOYSTICK_GAMECON=y
CONFIG_JOYSTICK_TURBOGRAFX=y
CONFIG_JOYSTICK_JOYDUMP=y
CONFIG_JOYSTICK_XPAD=y
# CONFIG_JOYSTICK_XPAD_FF is not set
# CONFIG_JOYSTICK_XPAD_LEDS is not set
CONFIG_INPUT_TABLET=y
# CONFIG_TABLET_USB_ACECAD is not set
CONFIG_TABLET_USB_AIPTEK=y
# CONFIG_TABLET_USB_GTCO is not set
CONFIG_TABLET_USB_KBTAB=y
CONFIG_TABLET_USB_WACOM=y
CONFIG_INPUT_TOUCHSCREEN=y
# CONFIG_TOUCHSCREEN_ADS7846 is not set
CONFIG_TOUCHSCREEN_FUJITSU=y
CONFIG_TOUCHSCREEN_GUNZE=y
CONFIG_TOUCHSCREEN_ELO=y
CONFIG_TOUCHSCREEN_MTOUCH=y
CONFIG_TOUCHSCREEN_INEXIO=y
CONFIG_TOUCHSCREEN_MK712=y
CONFIG_TOUCHSCREEN_PENMOUNT=y
CONFIG_TOUCHSCREEN_TOUCHRIGHT=y
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
# CONFIG_TOUCHSCREEN_UCB1400 is not set
CONFIG_TOUCHSCREEN_USB_COMPOSITE=y
CONFIG_TOUCHSCREEN_USB_EGALAX=y
CONFIG_TOUCHSCREEN_USB_PANJIT=y
CONFIG_TOUCHSCREEN_USB_3M=y
CONFIG_TOUCHSCREEN_USB_ITM=y
CONFIG_TOUCHSCREEN_USB_ETURBO=y
CONFIG_TOUCHSCREEN_USB_GUNZE=y
CONFIG_TOUCHSCREEN_USB_DMC_TSC10=y
CONFIG_TOUCHSCREEN_USB_IRTOUCH=y
CONFIG_TOUCHSCREEN_USB_IDEALTEK=y
CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH=y
CONFIG_TOUCHSCREEN_USB_GOTOP=y
CONFIG_TOUCHSCREEN_TOUCHIT213=y
CONFIG_INPUT_MISC=y
CONFIG_INPUT_PCSPKR=y
CONFIG_INPUT_APANEL=y
# CONFIG_INPUT_ATLAS_BTNS is not set
CONFIG_INPUT_ATI_REMOTE=y
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_POWERMATE is not set
CONFIG_INPUT_UINPUT=y

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_CT82C710 is not set
CONFIG_SERIO_PARKBD=y
CONFIG_SERIO_PCIPS2=y
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=y
CONFIG_GAMEPORT=y
CONFIG_GAMEPORT_NS558=y
CONFIG_GAMEPORT_L4=y
CONFIG_GAMEPORT_EMU10K1=y
# CONFIG_GAMEPORT_FM801 is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
# CONFIG_DEVKMEM is not set
# CONFIG_SERIAL_NONSTANDARD is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_CS is not set
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=y
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_PRINTER=y
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_INTEL=y
# CONFIG_HW_RANDOM_AMD is not set
CONFIG_NVRAM=y
CONFIG_RTC=y
CONFIG_R3964=y
CONFIG_APPLICOM=y

#
# PCMCIA character devices
#
CONFIG_SYNCLINK_CS=y
CONFIG_CARDMAN_4000=y
# CONFIG_CARDMAN_4040 is not set
CONFIG_IPWIRELESS=y
CONFIG_MWAVE=y
CONFIG_PC8736x_GPIO=y
CONFIG_NSC_GPIO=y
CONFIG_RAW_DRIVER=y
CONFIG_MAX_RAW_DEVS=256
CONFIG_HPET=y
CONFIG_HPET_RTC_IRQ=y
CONFIG_HPET_MMAP=y
CONFIG_HANGCHECK_TIMER=y
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
# CONFIG_I2C_CHARDEV is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=y

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
CONFIG_I2C_ALI1535=y
# CONFIG_I2C_ALI15X3 is not set
CONFIG_I2C_AMD756=y
CONFIG_I2C_AMD8111=y
CONFIG_I2C_I801=y
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
CONFIG_I2C_SIS5595=y
# CONFIG_I2C_SIS630 is not set
CONFIG_I2C_SIS96X=y
CONFIG_I2C_VIAPRO=y

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_SIMTEC is not set

#
# External I2C/SMBus adapter drivers
#
CONFIG_I2C_PARPORT=y
CONFIG_I2C_PARPORT_LIGHT=y
# CONFIG_I2C_TINY_USB is not set

#
# Graphics adapter I2C/DDC channel drivers
#
CONFIG_I2C_VOODOO3=y

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_PCA_PLATFORM is not set

#
# Miscellaneous I2C Chip support
#
# CONFIG_PCF8575 is not set
CONFIG_I2C_DEBUG_CORE=y
CONFIG_I2C_DEBUG_ALGO=y
CONFIG_I2C_DEBUG_BUS=y
CONFIG_I2C_DEBUG_CHIP=y
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y

#
# SPI Master Controller Drivers
#
CONFIG_SPI_BITBANG=y
CONFIG_SPI_BUTTERFLY=y

#
# SPI Protocol Masters
#
CONFIG_SPI_AT25=y
CONFIG_SPI_TLE62X0=y
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
# CONFIG_GPIOLIB is not set
CONFIG_W1=y
# CONFIG_W1_CON is not set

#
# 1-wire Bus Masters
#
CONFIG_W1_MASTER_MATROX=y
# CONFIG_W1_MASTER_DS2490 is not set

#
# 1-wire Slaves
#
# CONFIG_W1_SLAVE_THERM is not set
CONFIG_W1_SLAVE_SMEM=y
CONFIG_W1_SLAVE_DS2433=y
# CONFIG_W1_SLAVE_DS2433_CRC is not set
# CONFIG_W1_SLAVE_DS2760 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=y
CONFIG_SENSORS_ADM1021=y
CONFIG_SENSORS_ADM1025=y
# CONFIG_SENSORS_ADM9240 is not set
CONFIG_SENSORS_DS1621=y
CONFIG_SENSORS_FSCHER=y
CONFIG_SENSORS_FSCPOS=y
# CONFIG_SENSORS_GL518SM is not set
CONFIG_SENSORS_GL520SM=y
CONFIG_SENSORS_IT87=y
CONFIG_SENSORS_LM63=y
CONFIG_SENSORS_LM75=y
CONFIG_SENSORS_LM77=y
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM83 is not set
CONFIG_SENSORS_LM87=y
CONFIG_SENSORS_LM90=y
CONFIG_SENSORS_LM92=y
CONFIG_SENSORS_LM93=y
CONFIG_SENSORS_MAX1619=y
# CONFIG_SENSORS_PC87360 is not set
CONFIG_SENSORS_SIS5595=y
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_ADS7828 is not set
CONFIG_SENSORS_VIA686A=y
CONFIG_SENSORS_VT8231=y
# CONFIG_SENSORS_W83781D is not set
CONFIG_SENSORS_W83627HF=y
CONFIG_SENSORS_W83627EHF=y
CONFIG_SENSORS_HDAPS=y
# CONFIG_SENSORS_APPLESMC is not set
CONFIG_HWMON_DEBUG_CHIP=y
CONFIG_THERMAL=y
# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set

#
# Sonics Silicon Backplane
#
CONFIG_SSB_POSSIBLE=y
CONFIG_SSB=y
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
CONFIG_SSB_B43_PCI_BRIDGE=y
CONFIG_SSB_DEBUG=y
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
CONFIG_MFD_SM501=y
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set

#
# Multimedia devices
#

#
# Multimedia core support
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_VIDEO_MEDIA is not set

#
# Multimedia drivers
#
CONFIG_DAB=y
# CONFIG_USB_DABUSB is not set

#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_AMD64=y
CONFIG_AGP_INTEL=y
CONFIG_AGP_SIS=y
CONFIG_AGP_VIA=y
CONFIG_DRM=y
CONFIG_DRM_TDFX=y
CONFIG_DRM_R128=y
# CONFIG_DRM_RADEON is not set
CONFIG_DRM_I810=y
# CONFIG_DRM_I830 is not set
# CONFIG_DRM_I915 is not set
# CONFIG_DRM_MGA is not set
CONFIG_DRM_SIS=y
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set
CONFIG_VGASTATE=y
CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_DDC=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_BOTH_ENDIAN=y
# CONFIG_FB_BIG_ENDIAN is not set
# CONFIG_FB_LITTLE_ENDIAN is not set
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_HECUBA=y
CONFIG_FB_SVGALIB=y
# CONFIG_FB_MACMODES is not set
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
CONFIG_FB_CIRRUS=y
CONFIG_FB_PM2=y
# CONFIG_FB_PM2_FIFO_DISCONNECT is not set
CONFIG_FB_CYBER2000=y
# CONFIG_FB_ARC is not set
CONFIG_FB_ASILIANT=y
CONFIG_FB_IMSTT=y
CONFIG_FB_VGA16=y
CONFIG_FB_UVESA=y
# CONFIG_FB_VESA is not set
CONFIG_FB_EFI=y
# CONFIG_FB_IMAC is not set
CONFIG_FB_N411=y
# CONFIG_FB_HGA is not set
CONFIG_FB_S1D13XXX=y
CONFIG_FB_NVIDIA=y
# CONFIG_FB_NVIDIA_I2C is not set
CONFIG_FB_NVIDIA_DEBUG=y
# CONFIG_FB_NVIDIA_BACKLIGHT is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_LE80578 is not set
CONFIG_FB_MATROX=y
CONFIG_FB_MATROX_MILLENIUM=y
CONFIG_FB_MATROX_MYSTIQUE=y
# CONFIG_FB_MATROX_G is not set
CONFIG_FB_MATROX_I2C=y
# CONFIG_FB_MATROX_MULTIHEAD is not set
CONFIG_FB_RADEON=y
CONFIG_FB_RADEON_I2C=y
CONFIG_FB_RADEON_BACKLIGHT=y
# CONFIG_FB_RADEON_DEBUG is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
CONFIG_FB_SIS=y
CONFIG_FB_SIS_300=y
# CONFIG_FB_SIS_315 is not set
# CONFIG_FB_NEOMAGIC is not set
CONFIG_FB_KYRO=y
CONFIG_FB_3DFX=y
CONFIG_FB_VOODOO1=y
CONFIG_FB_VT8623=y
CONFIG_FB_TRIDENT=y
CONFIG_FB_ARK=y
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SM501 is not set
CONFIG_FB_VIRTUAL=y
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=y
CONFIG_LCD_LTV350QV=y
CONFIG_LCD_ILI9320=y
CONFIG_LCD_VGG2432A4=y
CONFIG_LCD_PLATFORM=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_CORGI=y
# CONFIG_BACKLIGHT_PROGEAR is not set
# CONFIG_BACKLIGHT_MBP_NVIDIA is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_FONTS=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_7x14=y
CONFIG_FONT_PEARL_8x8=y
CONFIG_FONT_ACORN_8x8=y
CONFIG_FONT_MINI_4x6=y
# CONFIG_FONT_SUN8x16 is not set
# CONFIG_FONT_SUN12x22 is not set
CONFIG_FONT_10x18=y
# CONFIG_LOGO is not set
# CONFIG_SOUND is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
CONFIG_HID_DEBUG=y
CONFIG_HIDRAW=y

#
# USB Input Devices
#
CONFIG_USB_HID=y
CONFIG_USB_HIDINPUT_POWERBOOK=y
CONFIG_USB_HIDDEV=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
# CONFIG_USB_DEVICEFS is not set
CONFIG_USB_DEVICE_CLASS=y
CONFIG_USB_DYNAMIC_MINORS=y
# CONFIG_USB_SUSPEND is not set
# CONFIG_USB_MON is not set

#
# USB Host Controller Drivers
#
CONFIG_USB_C67X00_HCD=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
# CONFIG_USB_ISP116X_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_U132_HCD is not set
CONFIG_USB_SL811_HCD=y
CONFIG_USB_SL811_CS=y
# CONFIG_USB_R8A66597_HCD is not set

#
# USB Device Class drivers
#
CONFIG_USB_ACM=y
# CONFIG_USB_PRINTER is not set
CONFIG_USB_WDM=y

#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
#

#
# may also be needed; see USB_STORAGE Help for more information
#
CONFIG_USB_STORAGE=y
CONFIG_USB_STORAGE_DEBUG=y
# CONFIG_USB_STORAGE_DATAFAB is not set
CONFIG_USB_STORAGE_FREECOM=y
# CONFIG_USB_STORAGE_ISD200 is not set
CONFIG_USB_STORAGE_DPCM=y
# CONFIG_USB_STORAGE_USBAT is not set
CONFIG_USB_STORAGE_SDDR09=y
CONFIG_USB_STORAGE_SDDR55=y
CONFIG_USB_STORAGE_JUMPSHOT=y
CONFIG_USB_STORAGE_ALAUDA=y
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
CONFIG_USB_STORAGE_SIERRA=y
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
CONFIG_USB_LIBUSUAL=y

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
CONFIG_USB_MICROTEK=y

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
CONFIG_USB_EMI26=y
# CONFIG_USB_ADUTUX is not set
CONFIG_USB_RIO500=y
CONFIG_USB_LEGOTOWER=y
# CONFIG_USB_LCD is not set
# CONFIG_USB_BERRY_CHARGE is not set
CONFIG_USB_LED=y
CONFIG_USB_CYPRESS_CY7C63=y
CONFIG_USB_CYTHERM=y
CONFIG_USB_PHIDGET=y
CONFIG_USB_PHIDGETKIT=y
CONFIG_USB_PHIDGETMOTORCONTROL=y
CONFIG_USB_PHIDGETSERVO=y
CONFIG_USB_IDMOUSE=y
CONFIG_USB_FTDI_ELAN=y
CONFIG_USB_APPLEDISPLAY=y
CONFIG_USB_SISUSBVGA=y
CONFIG_USB_SISUSBVGA_CON=y
# CONFIG_USB_LD is not set
CONFIG_USB_TRANCEVIBRATOR=y
CONFIG_USB_IOWARRIOR=y
CONFIG_USB_ISIGHTFW=y
CONFIG_MMC=y
# CONFIG_MMC_DEBUG is not set
CONFIG_MMC_UNSAFE_RESUME=y

#
# MMC/SD Card Drivers
#
CONFIG_MMC_BLOCK=y
CONFIG_MMC_BLOCK_BOUNCE=y
CONFIG_SDIO_UART=y
CONFIG_MMC_TEST=y

#
# MMC/SD Host Controller Drivers
#
# CONFIG_MMC_SDHCI is not set
CONFIG_MMC_WBSD=y
CONFIG_MMC_SPI=y
CONFIG_MEMSTICK=y
CONFIG_MEMSTICK_DEBUG=y

#
# MemoryStick drivers
#
CONFIG_MEMSTICK_UNSAFE_RESUME=y
CONFIG_MSPRO_BLOCK=y

#
# MemoryStick Host Controller Drivers
#
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# LED drivers
#
CONFIG_LEDS_PCA955X=y

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_IDE_DISK=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
# CONFIG_RTC_CLASS is not set
CONFIG_DMADEVICES=y

#
# DMA Devices
#
CONFIG_INTEL_IOATDMA=y
CONFIG_DMA_ENGINE=y

#
# DMA Clients
#
CONFIG_NET_DMA=y
CONFIG_DMATEST=y
CONFIG_DCA=y
CONFIG_AUXDISPLAY=y
# CONFIG_KS0108 is not set
# CONFIG_UIO is not set

#
# Firmware Drivers
#
CONFIG_EDD=y
# CONFIG_EDD_OFF is not set
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_EFI_VARS=y
CONFIG_DELL_RBU=y
# CONFIG_DCDBAS is not set
CONFIG_DMIID=y
# CONFIG_ISCSI_IBFT_FIND is not set

#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_JBD=y
CONFIG_JBD_DEBUG=y
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_XFS_FS=y
CONFIG_XFS_QUOTA=y
# CONFIG_XFS_POSIX_ACL is not set
CONFIG_XFS_RT=y
# CONFIG_OCFS2_FS is not set
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
# CONFIG_INOTIFY_USER is not set
# CONFIG_QUOTA is not set
CONFIG_QUOTACTL=y
CONFIG_AUTOFS_FS=y
# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=y
CONFIG_GENERIC_ACL=y

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=y

#
# Miscellaneous filesystems
#
CONFIG_HFSPLUS_FS=y
# CONFIG_CRAMFS is not set
CONFIG_VXFS_FS=y
CONFIG_MINIX_FS=y
CONFIG_OMFS_FS=y
# CONFIG_HPFS_FS is not set
CONFIG_QNX4FS_FS=y
CONFIG_ROMFS_FS=y
CONFIG_SYSV_FS=y
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NCP_FS=y
CONFIG_NCPFS_PACKET_SIGNING=y
# CONFIG_NCPFS_IOCTL_LOCKING is not set
CONFIG_NCPFS_STRONG=y
CONFIG_NCPFS_NFS_NS=y
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
CONFIG_NCPFS_NLS=y
# CONFIG_NCPFS_EXTRAS is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
CONFIG_AMIGA_PARTITION=y
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
# CONFIG_MSDOS_PARTITION is not set
CONFIG_LDM_PARTITION=y
# CONFIG_LDM_DEBUG is not set
CONFIG_SGI_PARTITION=y
CONFIG_ULTRIX_PARTITION=y
CONFIG_SUN_PARTITION=y
# CONFIG_KARMA_PARTITION is not set
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
CONFIG_NLS_CODEPAGE_737=y
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=y
CONFIG_NLS_CODEPAGE_852=y
# CONFIG_NLS_CODEPAGE_855 is not set
CONFIG_NLS_CODEPAGE_857=y
CONFIG_NLS_CODEPAGE_860=y
CONFIG_NLS_CODEPAGE_861=y
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
CONFIG_NLS_CODEPAGE_865=y
CONFIG_NLS_CODEPAGE_866=y
CONFIG_NLS_CODEPAGE_869=y
CONFIG_NLS_CODEPAGE_936=y
CONFIG_NLS_CODEPAGE_950=y
CONFIG_NLS_CODEPAGE_932=y
CONFIG_NLS_CODEPAGE_949=y
CONFIG_NLS_CODEPAGE_874=y
# CONFIG_NLS_ISO8859_8 is not set
CONFIG_NLS_CODEPAGE_1250=y
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=y
# CONFIG_NLS_ISO8859_1 is not set
CONFIG_NLS_ISO8859_2=y
CONFIG_NLS_ISO8859_3=y
CONFIG_NLS_ISO8859_4=y
# CONFIG_NLS_ISO8859_5 is not set
CONFIG_NLS_ISO8859_6=y
CONFIG_NLS_ISO8859_7=y
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
CONFIG_NLS_ISO8859_14=y
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
CONFIG_NLS_KOI8_U=y
CONFIG_NLS_UTF8=y

#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_PRINTK_TIME=y
CONFIG_ENABLE_WARN_DEPRECATED=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
CONFIG_SLUB_DEBUG_ON=y
CONFIG_SLUB_STATS=y
# CONFIG_DEBUG_RT_MUTEXES is not set
CONFIG_RT_MUTEX_TESTER=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_LOCK_ALLOC=y
# CONFIG_PROVE_LOCKING is not set
CONFIG_LOCKDEP=y
CONFIG_LOCK_STAT=y
# CONFIG_DEBUG_LOCKDEP is not set
CONFIG_DEBUG_SPINLOCK_SLEEP=y
CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_WRITECOUNT=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
CONFIG_FRAME_POINTER=y
# CONFIG_BOOT_PRINTK_DELAY is not set
CONFIG_RCU_TORTURE_TEST=y
CONFIG_RCU_TORTURE_TEST_RUNNABLE=y
CONFIG_RCU_CPU_STALL=y
CONFIG_BACKTRACE_SELF_TEST=y
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
# CONFIG_SYSCTL_SYSCALL_CHECK is not set
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACING=y
CONFIG_FTRACE=y
# CONFIG_IRQSOFF_TRACER is not set
# CONFIG_SYSPROF_TRACER is not set
CONFIG_SCHED_TRACER=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_BOOT_TRACER=y
# CONFIG_STACK_TRACER is not set
# CONFIG_DYNAMIC_FTRACE is not set
CONFIG_FTRACE_SELFTEST=y
CONFIG_FTRACE_STARTUP_TEST=y
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
CONFIG_BUILD_DOCSRC=y
CONFIG_SAMPLES=y
CONFIG_SAMPLE_KOBJECT=y
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_STRICT_DEVMEM is not set
# CONFIG_X86_VERBOSE_BOOTUP is not set
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_PAGEALLOC=y
CONFIG_DEBUG_PER_CPU_MAPS=y
CONFIG_X86_PTDUMP=y
CONFIG_DEBUG_RODATA=y
CONFIG_DEBUG_RODATA_TEST=y
CONFIG_IOMMU_DEBUG=y
# CONFIG_IOMMU_LEAK is not set
CONFIG_MMIOTRACE_HOOKS=y
CONFIG_MMIOTRACE=y
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
CONFIG_DEBUG_BOOT_PARAMS=y
CONFIG_CPA_DEBUG=y
CONFIG_OPTIMIZE_INLINING=y

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
# CONFIG_SECURITY is not set
CONFIG_SECURITY_FILE_CAPABILITIES=y
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_NULL=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=y

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
CONFIG_CRYPTO_SEQIV=y

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
CONFIG_CRYPTO_CTS=y
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_PCBC is not set

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=y
CONFIG_CRYPTO_RMD128=y
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
CONFIG_CRYPTO_RMD320=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
# CONFIG_CRYPTO_TGR192 is not set
CONFIG_CRYPTO_WP512=y

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_X86_64=y
CONFIG_CRYPTO_ANUBIS=y
CONFIG_CRYPTO_ARC4=y
# CONFIG_CRYPTO_BLOWFISH is not set
CONFIG_CRYPTO_CAMELLIA=y
CONFIG_CRYPTO_CAST5=y
CONFIG_CRYPTO_CAST6=y
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_FCRYPT is not set
CONFIG_CRYPTO_KHAZAD=y
# CONFIG_CRYPTO_SEED is not set
CONFIG_CRYPTO_SERPENT=y
CONFIG_CRYPTO_TEA=y
CONFIG_CRYPTO_TWOFISH=y
CONFIG_CRYPTO_TWOFISH_COMMON=y
CONFIG_CRYPTO_TWOFISH_X86_64=y

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
# CONFIG_CRYPTO_LZO is not set
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_HIFN_795X=y
# CONFIG_CRYPTO_DEV_HIFN_795X_RNG is not set
CONFIG_HAVE_KVM=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=y
CONFIG_KVM_INTEL=y
CONFIG_KVM_AMD=y
# CONFIG_KVM_TRACE is not set
# CONFIG_VIRTIO_BALLOON is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC_ITU_T=y
CONFIG_CRC32=y
CONFIG_CRC7=y
CONFIG_LIBCRC32C=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_FORCE_SUCCESSFUL_BUILD=y

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From - Thu Nov 08 21:02:55 2018
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From: Srinivasa Ds <srinivasa@in.ibm.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC][PATCH] Demultiplexing SIGTRAP signal -v2
Date: Tue, 23 Sep 2008 19:55:01 +0530
Organization: IBM
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Approved: news@gmane.org
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	Thomas Gleixner <tglx@linutronix.de>
To: Ingo Molnar <mingo@elte.hu>
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On Tuesday 23 September 2008 17:00:01 Ingo Molnar wrote:

> > applied to [the new topic] tip/core/signal, thanks Srinivasa! There
> > are some other pending x86 signal changes already, so i based
> > tip/core/signal on tip/x86/signal.
>
> -tip testing found the following build error with the attached config:
>

Ingo, Reproduced build break issue with your config on tip tree. It was a costly overlook 
to miss one header file. I included it in this patch and tested it out.


Currently a SIGTRAP can denote any one of below reasons.
	- Breakpoint hit
	- H/W debug register hit
	- Single step
	- Signal sent through kill() or rasie()

Architectures like powerpc/parisc provides infrastructure to demultiplex
SIGTRAP signal by passing down the information for receiving SIGTRAP through
si_code of siginfot_t structure. Here is an attempt is generalise this 
infrastructure by extending it to x86 and x86_64 archs. 

Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com>


---
 arch/ia64/include/asm/siginfo.h    |    5 -----
 arch/powerpc/include/asm/siginfo.h |    5 -----
 arch/x86/kernel/ptrace.c           |    7 ++++---
 arch/x86/kernel/traps_32.c         |    4 +++-
 arch/x86/kernel/traps_64.c         |    2 +-
 include/asm-generic/siginfo.h      |    2 ++
 include/asm-parisc/siginfo.h       |    5 -----
 include/asm-x86/ptrace.h           |    2 +-
 include/asm-x86/traps.h            |   12 ++++++++++++
 9 files changed, 23 insertions(+), 21 deletions(-)

Index: linux-2.6.27-rc7/arch/ia64/include/asm/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/arch/ia64/include/asm/siginfo.h
+++ linux-2.6.27-rc7/arch/ia64/include/asm/siginfo.h
@@ -113,11 +113,6 @@ typedef struct siginfo {
 #undef NSIGSEGV
 #define NSIGSEGV	3
 
-/*
- * SIGTRAP si_codes
- */
-#define TRAP_BRANCH	(__SI_FAULT|3)	/* process taken branch trap */
-#define TRAP_HWBKPT	(__SI_FAULT|4)	/* hardware breakpoint or watchpoint */
 #undef NSIGTRAP
 #define NSIGTRAP	4
 
Index: linux-2.6.27-rc7/arch/powerpc/include/asm/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/arch/powerpc/include/asm/siginfo.h
+++ linux-2.6.27-rc7/arch/powerpc/include/asm/siginfo.h
@@ -15,11 +15,6 @@
 
 #include <asm-generic/siginfo.h>
 
-/*
- * SIGTRAP si_codes
- */
-#define TRAP_BRANCH	(__SI_FAULT|3)	/* process taken branch trap */
-#define TRAP_HWBKPT	(__SI_FAULT|4)	/* hardware breakpoint or watchpoint */
 #undef NSIGTRAP
 #define NSIGTRAP	4
 
Index: linux-2.6.27-rc7/arch/x86/kernel/traps_32.c
===================================================================
--- linux-2.6.27-rc7.orig/arch/x86/kernel/traps_32.c
+++ linux-2.6.27-rc7/arch/x86/kernel/traps_32.c
@@ -891,6 +891,7 @@ void __kprobes do_debug(struct pt_regs *
 {
 	struct task_struct *tsk = current;
 	unsigned int condition;
+	int si_code;
 
 	trace_hardirqs_fixup();
 
@@ -935,8 +936,9 @@ void __kprobes do_debug(struct pt_regs *
 			goto clear_TF_reenable;
 	}
 
+	si_code = get_si_code((unsigned long)condition);
 	/* Ok, finally something we can handle */
-	send_sigtrap(tsk, regs, error_code);
+	send_sigtrap(tsk, regs, error_code, si_code);
 
 	/*
 	 * Disable additional traps. They'll be re-enabled when
Index: linux-2.6.27-rc7/arch/x86/kernel/traps_64.c
===================================================================
--- linux-2.6.27-rc7.orig/arch/x86/kernel/traps_64.c
+++ linux-2.6.27-rc7/arch/x86/kernel/traps_64.c
@@ -936,7 +936,7 @@ asmlinkage void __kprobes do_debug(struc
 	tsk->thread.error_code = error_code;
 	info.si_signo = SIGTRAP;
 	info.si_errno = 0;
-	info.si_code = TRAP_BRKPT;
+	info.si_code = get_si_code(condition);
 	info.si_addr = user_mode(regs) ? (void __user *)regs->ip : NULL;
 	force_sig_info(SIGTRAP, &info, tsk);
 
Index: linux-2.6.27-rc7/include/asm-generic/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-generic/siginfo.h
+++ linux-2.6.27-rc7/include/asm-generic/siginfo.h
@@ -199,6 +199,8 @@ typedef struct siginfo {
  */
 #define TRAP_BRKPT	(__SI_FAULT|1)	/* process breakpoint */
 #define TRAP_TRACE	(__SI_FAULT|2)	/* process trace trap */
+#define TRAP_BRANCH     (__SI_FAULT|3)  /* process taken branch trap */
+#define TRAP_HWBKPT     (__SI_FAULT|4)  /* hardware breakpoint/watchpoint */
 #define NSIGTRAP	2
 
 /*
Index: linux-2.6.27-rc7/include/asm-parisc/siginfo.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-parisc/siginfo.h
+++ linux-2.6.27-rc7/include/asm-parisc/siginfo.h
@@ -3,11 +3,6 @@
 
 #include <asm-generic/siginfo.h>
 
-/*
- * SIGTRAP si_codes
- */
-#define TRAP_BRANCH	(__SI_FAULT|3)	/* process taken branch trap */
-#define TRAP_HWBKPT	(__SI_FAULT|4)	/* hardware breakpoint or watchpoint */
 #undef NSIGTRAP
 #define NSIGTRAP	4
 
Index: linux-2.6.27-rc7/arch/x86/kernel/ptrace.c
===================================================================
--- linux-2.6.27-rc7.orig/arch/x86/kernel/ptrace.c
+++ linux-2.6.27-rc7/arch/x86/kernel/ptrace.c
@@ -1357,7 +1357,8 @@ const struct user_regset_view *task_user
 #endif
 }
 
-void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code)
+void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
+					 int error_code, int si_code)
 {
 	struct siginfo info;
 
@@ -1366,7 +1367,7 @@ void send_sigtrap(struct task_struct *ts
 
 	memset(&info, 0, sizeof(info));
 	info.si_signo = SIGTRAP;
-	info.si_code = TRAP_BRKPT;
+	info.si_code = si_code;
 
 	/* User-mode ip? */
 	info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL;
@@ -1476,5 +1477,5 @@ asmregparm void syscall_trace_leave(stru
 	 */
 	if (test_thread_flag(TIF_SINGLESTEP) &&
 	    (current->ptrace & PT_PTRACED))
-		send_sigtrap(current, regs, 0);
+		send_sigtrap(current, regs, 0, TRAP_BRKPT);
 }
Index: linux-2.6.27-rc7/include/asm-x86/traps.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-x86/traps.h
+++ linux-2.6.27-rc7/include/asm-x86/traps.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_X86_TRAPS_H
 #define _ASM_X86_TRAPS_H
 
+#include <asm/debugreg.h>
+
 /* Common in X86_32 and X86_64 */
 asmlinkage void divide_error(void);
 asmlinkage void debug(void);
@@ -36,6 +38,16 @@ void do_invalid_op(struct pt_regs *, lon
 void do_general_protection(struct pt_regs *, long);
 void do_nmi(struct pt_regs *, long);
 
+static inline int get_si_code(unsigned long condition)
+{
+	if (condition & DR_STEP)
+		return TRAP_TRACE;
+	else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
+		return TRAP_HWBKPT;
+	else
+		return TRAP_BRKPT;
+}
+
 extern int panic_on_unrecovered_nmi;
 extern int kstack_depth_to_print;
 
Index: linux-2.6.27-rc7/include/asm-x86/ptrace.h
===================================================================
--- linux-2.6.27-rc7.orig/include/asm-x86/ptrace.h
+++ linux-2.6.27-rc7/include/asm-x86/ptrace.h
@@ -143,7 +143,7 @@ convert_ip_to_linear(struct task_struct 
 
 #ifdef CONFIG_X86_32
 extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
-			 int error_code);
+			 int error_code, int si_code);
 #else
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 #endif



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From - Thu Nov 08 21:02:55 2018
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Subject: Re: [RFC][PATCH] Demultiplexing SIGTRAP signal -v2
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* Srinivasa Ds <srinivasa@in.ibm.com> wrote:

> > -tip testing found the following build error with the attached 
> > config:
> 
> Ingo, Reproduced build break issue with your config on tip tree. It 
> was a costly overlook to miss one header file. I included it in this 
> patch and tested it out.

thanks - applied the delta fix below to tip/core/signal.

	Ingo

--------------->
>From e8d3f455de4f42d4bab2f6f1aeb2cf3bd18eb508 Mon Sep 17 00:00:00 2001
From: Srinivasa Ds <srinivasa@in.ibm.com>
Date: Tue, 23 Sep 2008 15:23:52 +0530
Subject: [PATCH] signals: demultiplexing SIGTRAP signal, fix

fix build breakage, missing header file.

Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/asm-x86/traps.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/asm-x86/traps.h b/include/asm-x86/traps.h
index 4b1e904..7a692ba 100644
--- a/include/asm-x86/traps.h
+++ b/include/asm-x86/traps.h
@@ -1,6 +1,8 @@
 #ifndef ASM_X86__TRAPS_H
 #define ASM_X86__TRAPS_H
 
+#include <asm/debugreg.h>
+
 /* Common in X86_32 and X86_64 */
 asmlinkage void divide_error(void);
 asmlinkage void debug(void);
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From: Gabriel Paubert <paubert@iram.es>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC][PATCH] Demultiplexing SIGTRAP signal -v2
Date: Tue, 23 Sep 2008 17:53:58 +0200
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References: <200809221602.32616.srinivasa@in.ibm.com> <20080923112812.GL29021@elte.hu> <20080923113001.GA12531@elte.hu> <200809231955.01564.srinivasa@in.ibm.com>
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Cc: Ingo Molnar <mingo@elte.hu>, linux-parisc@vger.kernel.org,
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	paulus@samba.org, "H. Peter Anvin" <hpa@zytor.com>,
	akpm@linux-foundation.org, Thomas Gleixner <tglx@linutronix.de>,
	Roland McGrath <roland@redhat.com>
To: Srinivasa Ds <srinivasa@in.ibm.com>
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On Tue, Sep 23, 2008 at 07:55:01PM +0530, Srinivasa Ds wrote:
> On Tuesday 23 September 2008 17:00:01 Ingo Molnar wrote:
> 
> > > applied to [the new topic] tip/core/signal, thanks Srinivasa! There
> > > are some other pending x86 signal changes already, so i based
> > > tip/core/signal on tip/x86/signal.
> >
> > -tip testing found the following build error with the attached config:
> >
> 
> Ingo, Reproduced build break issue with your config on tip tree. It was a costly overlook 
> to miss one header file. I included it in this patch and tested it out.
> 
> 
> Currently a SIGTRAP can denote any one of below reasons.
> 	- Breakpoint hit
> 	- H/W debug register hit
> 	- Single step
> 	- Signal sent through kill() or rasie()

Typo: s/rasie/raise/

No strong opinion about the patch, but more info is usually better.

	Regards,
	Gabriel
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From - Thu Nov 08 21:02:55 2018
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From: Roland McGrath <roland@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC][PATCH] Demultiplexing SIGTRAP signal -v2
Date: Fri, 26 Sep 2008 02:06:37 -0700 (PDT)
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Cc: Srinivasa Ds <srinivasa@in.ibm.com>, linux-kernel@vger.kernel.org,
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	Thomas Gleixner <tglx@linutronix.de>
To: Ingo Molnar <mingo@elte.hu>
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I certainly have no objection in principle.  I doubt that any x86 userland
apps expect certain si_code values for SIGTRAP now, since the existing
values are not of any real use.  (Signal handlers get the thread.trap_no and
thread.error_code values from hardware to guess from, and debuggers via
ptrace get the hardware %db6 value to guess from.)  I do have a few comments.

If you're doing it, I think you should do the do_int3 case too,
so every machine-generated SIGTRAP has a meaningful si_code value.

The only use of send_sigtrap is for do_debug (and for faking that do_debug
happened in the syscall_trace_leave case).  You should consolidate all the
uses in both 32 and 64 to use send_sigtrap uniformly, change its signature
as needed.  I'm inclined to consolidate the si_code logic there, and just
pass it the hardware bits or let it get them from the thread_struct
(trap_nr, error_code, debugreg6).

About that si_code logic based on %db6.  There are some funny "sticky"
properties to how that register gets set in hardware.  Even reading the
hardware manuals doesn't always make it plain what to expect.  I wouldn't
want to testify that the patch's logic is correct in distinguishing which
event really just happened.  (I'm not sure, but I think it may also be
possible to have a single do_debug trap for both a single-step trap and a
hardware breakpoint trap generated by the same instruction.)  I know that
Alan Stern figured out a lot of the magic empirically a while back.  That
deserves a careful double-checking if we are now trying to make si_code
tell a clear and reliable story.


Thanks,
Roland
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From - Thu Nov 08 21:02:55 2018
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From: Srinivasa DS <srinivasa@in.ibm.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC][PATCH] Demultiplexing SIGTRAP signal -v2
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Cc: Ingo Molnar <mingo@elte.hu>, linux-kernel@vger.kernel.org,
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	"H. Peter Anvin" <hpa@zytor.com>,
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To: Roland McGrath <roland@redhat.com>
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Roland McGrath wrote:
> I certainly have no objection in principle.  I doubt that any x86 userland
> apps expect certain si_code values for SIGTRAP now, since the existing
> values are not of any real use.  (Signal handlers get the thread.trap_no and
> thread.error_code values from hardware to guess from, and debuggers via
> ptrace get the hardware %db6 value to guess from.)  I do have a few comments.
> 
> If you're doing it, I think you should do the do_int3 case too,
> so every machine-generated SIGTRAP has a meaningful si_code value.

Roland
    Thanks for your comments.

>   I'm inclined to consolidate the si_code logic there, and just
> pass it the hardware bits or let it get them from the thread_struct
> (trap_nr, error_code, debugreg6).

That sounds like a good idea. Let me go through code and get back to you.

Thanks
  Srinivasa DS

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From - Thu Nov 08 21:02:55 2018
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.parisc
Subject: HPPA64: badness while freeing init memory
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Just tried 2.6.27-rc8 on a freshly installed HP 9000 L1000-44. With 
current config it boots fine but emits two badness messages while 
freeing unused initial memory (dmesg below).

I'm not subscribed to linux-parisc so please CC: any discussion to me.

Linux version 2.6.27-rc8 (mroos@hernes) (gcc version 4.3.2 (GCC) ) #1 SMP Tue Sep 30 09:26:39 EEST 2008
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00005c90 00000491 00000000 00000002 2353fbcb 100000f0 00000008 000000b2 000000b2
vers  00000203
CPUID vers 17 rev 8 (0x00000228)
capabilities 0x1
model 9000/800/L1000-44
Total Memory: 3072 MB
initrd: 7f9c6000-7ffedd69
initrd: reserving 3f9c6000-3ffedd69 (mem_max c0000000)
On node 0 totalpages: 786432
free_area_init_node: node 0, pgdat 40407d40, node_mem_map 40ab3000
  Normal zone: 775680 pages, LIFO batch:31
SMP: bootstrap CPU ID is 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 775680
Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.27-rc8
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Memory: 3078400k/3145728k available (2491k kernel code, 66664k reserved, 1124k data, 260k init)
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x0000000100000000   (3072 MB)
      .init : 0x000000004054c000 - 0x000000004058d000   ( 260 kB)
      .data : 0x000000004036eea8 - 0x0000000040488000   (1124 kB)
      .text : 0x0000000040100000 - 0x000000004036eea8   (2491 kB)
SLUB: Genslabs=12, HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=8
Calibrating delay loop... 878.18 BogoMIPS (lpj=4390912)
Mount-cache hash table entries: 256
Brought up 1 CPUs
net_namespace: 1536 bytes
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Rhapsody DC- 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5c9, 0x00004 }
2. Rhapsody DC- 440 at 0xfffffffffffa6000 [166] { 0, 0x0, 0x5c9, 0x00004 }
3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x095, 0x00009 }
4. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
5. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfffffffffed32000 [0/1] { 13, 0x0, 0x782, 0x0000a }
7. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
8. Elroy PCI Bridge at 0xfffffffffed36000 [0/3] { 13, 0x0, 0x782, 0x0000a }
9. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
10. Elroy PCI Bridge at 0xfffffffffed3a000 [0/5] { 13, 0x0, 0x782, 0x0000a }
11. Elroy PCI Bridge at 0xfffffffffed3c000 [0/6] { 13, 0x0, 0x782, 0x0000a }
12. Elroy PCI Bridge at 0xfffffffffed3e000 [0/7] { 13, 0x0, 0x782, 0x0000a }
Enabling PDC_PAT chassis codes support v0.05
Releasing cpu 1 now, hpa=fffffffffffa6000
FP[1] enabled: Rev 1 Model 16
CPU(s): 2 x PA8500 (PCX-W) at 440.000000 MHz
Whole cache flush 282944 cycles, flushing 4771840 bytes 816911 cycles
Setting cache flush threshold to 100000 (2 CPUs online)
SBA found Astro 2.1 at 0xfffffffffed00000
Elroy version TR4.0 (0x5) found at 0xfffffffffed30000
PCI: 0000:00:00.0 reg 10 io port: [0, 7f]
PCI: 0000:00:00.0 reg 14 32bit mmio: [0, 3ff]
PCI: 0000:00:00.0 reg 30 32bit mmio: [0, 3ffff]
PCI: 0000:00:01.0 reg 10 io port: [0, ff]
PCI: 0000:00:01.0 reg 14 64bit mmio: [0, 3ff]
PCI: 0000:00:01.0 reg 1c 64bit mmio: [0, 1fff]
pci 0000:00:01.0: supports D1
pci 0000:00:01.0: supports D2
PCI: 0000:00:01.1 reg 10 io port: [0, ff]
PCI: 0000:00:01.1 reg 14 64bit mmio: [f8020000, f80203ff]
PCI: 0000:00:01.1 reg 1c 64bit mmio: [f8040000, f8041fff]
pci 0000:00:01.1: supports D1
pci 0000:00:01.1: supports D2
PCI: 0000:00:02.0 reg 10 io port: [0, ff]
PCI: 0000:00:02.0 reg 14 32bit mmio: [0, ff]
PCI: 0000:00:02.0 reg 18 32bit mmio: [0, fff]
PCI: 0000:00:02.1 reg 10 io port: [0, ff]
PCI: 0000:00:02.1 reg 14 32bit mmio: [0, ff]
PCI: 0000:00:02.1 reg 18 32bit mmio: [0, fff]
PCI: 0000:00:04.0 reg 10 32bit mmio: [f8000000, f8000fff]
PCI: 0000:00:04.0 reg 14 io port: [0, 3f]
PCI: 0000:00:05.0 reg 10 32bit mmio: [0, fff]
PCI: 0000:00:05.0 reg 14 io port: [0, 3f]
Elroy version TR4.0 (0x5) found at 0xfffffffffed32000
Elroy version TR4.0 (0x5) found at 0xfffffffffed34000
NOTICE: Enabling PCI Arbitration
Elroy version TR4.0 (0x5) found at 0xfffffffffed36000
PCI: 0000:18:00.0 reg 10 io port: [0, 7f]
PCI: 0000:18:00.0 reg 14 32bit mmio: [0, 3ff]
PCI: 0000:18:00.0 reg 30 32bit mmio: [0, 3ffff]
Elroy version TR4.0 (0x5) found at 0xfffffffffed38000
NOTICE: Enabling PCI Arbitration
Elroy version TR4.0 (0x5) found at 0xfffffffffed3a000
NOTICE: Enabling PCI Arbitration
Elroy version TR4.0 (0x5) found at 0xfffffffffed3c000
NOTICE: Enabling PCI Arbitration
Elroy version TR4.0 (0x5) found at 0xfffffffffed3e000
NOTICE: Enabling PCI Arbitration
powersw: Soft power switch support not available.
NET: Registered protocol family 2
IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
NET: Registered protocol family 1
checking if image is initramfs... it is
Freeing initrd memory: 6303k freed
Chassis warnings not supported.
unwind_init: start = 0x403e4e84, end = 0x40407a14, entries = 8889
Performance monitoring counters enabled for Rhapsody DC- 440
msgmni has been set to 6026
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9a
Serial: 8250/16550 driver4 ports, IRQ sharing enabled
serial 0000:00:04.0: enabling device (0146 -> 0147)
0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 70) is a 16550A
console handover: boot [ttyB0] -> real [ttyS0]
0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 70) is a 16550A
0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 70) is a 16550A
serial 0000:00:05.0: enabling device (0140 -> 0143)
0000:00:05.0: ttyS3 at MMIO 0xfffffffff8005000 (irq = 71) is a 16550A
Couldn't register serial port 0000:00:05.0: -28
brd: module loaded
mice: PS/2 mouse device common for all mice
TCP bic registered
NET: Registered protocol family 17
Freeing unused kernel memory: <0>------------[ cut here ]------------
Badness at kernel/smp.c:332

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Not tainted
r00-03  000000ff0804ff0e 0000000040544b00 0000000040175674 0000000040494030
r04-07  000000004053cb00 000000004052f880 0000000000000000 0000000040410cf0
r08-11  00000000ff850460 0000000000000001 000000004052f880 0000000000000000
r12-15  0000000040410cf8 00000000000000fa 0000000000000000 00000000000000ff
r16-19  0000000040472550 000000004053fb00 000000004058a400 000000004058d000
r20-23  0000000000000000 000000004058d000 0000000040532ec0 0000000000000001
r24-27  0000000000000000 000000004052f880 0000000000000003 000000004053cb00
r28-31  000000000800000e 00000000ff8504a0 00000000ff850610 0000000000000000
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401753c8 00000000401753cc
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000002fe14050460
 CPU:        0   CR30: 00000000ff850000 CR31: 0000000000008020
 ORIG_R28: 00000000ff8504e0
 IAOQ[0]: smp_call_function_mask+0x48/0x2c8
 IAOQ[1]: smp_call_function_mask+0x4c/0x2c8
 RP(r2): smp_call_function+0x2c/0x38
Backtrace:
 [<0000000040175674>] smp_call_function+0x2c/0x38
 [<0000000040151fc0>] on_each_cpu+0x28/0x68
 [<000000004011ad9c>] flush_data_cache+0x24/0x30
 [<000000004011a23c>] free_initmem+0x94/0x338
 [<00000000401193f4>] init_post+0x1c/0x228
 [<000000004054c4b4>] kernel_init+0x34c/0x380

------------[ cut here ]------------
Badness at kernel/smp.c:219

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Tainted: G        W
r00-03  000000ff0804ff0e 000000004053f300 00000000401754b0 000000004052f880
r04-07  000000004053cb00 0000000000000001 0000000000000000 0000000040410cf0
r08-11  00000000ff850460 0000000000000001 000000004052f880 0000000000000000
r12-15  0000000040410cf8 00000000000000fa 0000000000000000 00000000000000ff
r16-19  0000000040472550 000000004053fb00 000000004058a400 0000000000000038
r20-23  00000000ff850460 0000000000000000 00000000ff8504d8 0000000000000001
r24-27  0000000000000000 000000004052f880 0000000000000001 000000004053cb00
r28-31  000000000800000e 00000000ff8505e0 00000000ff8506d0 0000000000000000
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040175298 000000004017529c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000002fe14050650
 CPU:        0   CR30: 00000000ff850000 CR31: 0000000000008020
 ORIG_R28: 0000000040104084
 IAOQ[0]: smp_call_function_single+0x38/0x120
 IAOQ[1]: smp_call_function_single+0x3c/0x120
 RP(r2): smp_call_function_mask+0x130/0x2c8
Backtrace:
 [<00000000401754b0>] smp_call_function_mask+0x130/0x2c8
 [<0000000040175674>] smp_call_function+0x2c/0x38
 [<0000000040151fc0>] on_each_cpu+0x28/0x68
 [<000000004011ad9c>] flush_data_cache+0x24/0x30
 [<000000004011a23c>] free_initmem+0x94/0x338
 [<00000000401193f4>] init_post+0x1c/0x228
 [<000000004054c4b4>] kernel_init+0x34c/0x380

260k freed
SCSI subsystem initialized
sym53c8xx 0000:00:01.0: enabling device (0140 -> 0143)
sym0: <896> rev 0x5 at pci 0000:00:01.0 irq 67
sym0: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
tulip 0000:00:00.0: enabling device (0140 -> 0143)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff8006000, 00:10:83:fe:9c:b0, IRQ 66.
sym53c8xx 0000:00:01.1: enabling device (0146 -> 0147)
sym1: <896> rev 0x5 at pci 0000:00:01.1 irq 68
sym1: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.2.3
scsi 1:0:2:0: Direct-Access     SEAGATE  ST136403LC       HP01 PQ: 0 ANSI: 2
scsi target1:0:2: tagged command queuing enabled, command queue depth 16.
scsi target1:0:2: Beginning Domain Validation
scsi target1:0:2: asynchronous
scsi target1:0:2: wide asynchronous
scsi target1:0:2: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
scsi target1:0:2: Domain Validation skipping write tests
scsi target1:0:2: Ending Domain Validation
sym53c8xx 0000:00:02.0: enabling device (0140 -> 0143)
sym2: <875> rev 0x14 at pci 0000:00:02.0 irq 68
sym2: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
sym2: SCSI BUS has been reset.
scsi2 : sym-2.2.3
scsi 2:0:2:0: Direct-Access     SEAGATE  ST136403LC       HP01 PQ: 0 ANSI: 2
scsi target2:0:2: tagged command queuing enabled, command queue depth 16.
scsi target2:0:2: Beginning Domain Validation
scsi target2:0:2: asynchronous
scsi target2:0:2: wide asynchronous
scsi target2:0:2: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
scsi target2:0:2: Domain Validation skipping write tests
scsi target2:0:2: Ending Domain Validation
sym53c8xx 0000:00:02.1: enabling device (0140 -> 0143)
sym3: <875> rev 0x14 at pci 0000:00:02.1 irq 69
sym3: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
sym3: SCSI BUS has been reset.
scsi3 : sym-2.2.3
scsi 3:0:2:0: CD-ROM            HP       DVD-ROM 304      2.00 PQ: 0 ANSI: 2
scsi target3:0:2: Beginning Domain Validation
scsi target3:0:2: asynchronous
scsi target3:0:2: FAST-20 SCSI 20.0 MB/s ST (50 ns, offset 16)
scsi target3:0:2: Domain Validation skipping write tests
scsi target3:0:2: Ending Domain Validation
tulip 0000:18:00.0: enabling device (0140 -> 0143)
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.
tulip1:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth1: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff9840000, 00:10:83:fb:99:c0, IRQ 72.
Driver 'sd' needs updating - please use bus_type methods
sd 1:0:2:0: [sda] 71132960 512-byte hardware sectors (36420 MB)
sd 1:0:2:0: [sda] Write Protect is off
sd 1:0:2:0: [sda] Mode Sense: 9f 00 10 08
sd 1:0:2:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
sd 1:0:2:0: [sda] 71132960 512-byte hardware sectors (36420 MB)
sd 1:0:2:0: [sda] Write Protect is off
sd 1:0:2:0: [sda] Mode Sense: 9f 00 10 08
sd 1:0:2:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
 sda: sda1 sda2 sda3 < sda5<4>Driver 'sr' needs updating - please use bus_type methods
 sda6 >
sd 1:0:2:0: [sda] Attached SCSI disk
sd 2:0:2:0: [sdb] 71132960 512-byte hardware sectors (36420 MB)
sd 2:0:2:0: [sdb] Write Protect is off
sd 2:0:2:0: [sdb] Mode Sense: 9f 00 10 08
sd 2:0:2:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
sd 2:0:2:0: [sdb] 71132960 512-byte hardware sectors (36420 MB)
sd 2:0:2:0: [sdb] Write Protect is off
sd 2:0:2:0: [sdb] Mode Sense: 9f 00 10 08
sd 2:0:2:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
 sdb: unknown partition table
sd 2:0:2:0: [sdb] Attached SCSI disk
sr0: scsi3-mmc drive: 0x/0x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.20
sr 3:0:2:0: Attached scsi CD-ROM sr0
sd 1:0:2:0: Attached scsi generic sg0 type 0
sd 2:0:2:0: Attached scsi generic sg1 type 0
sr 3:0:2:0: Attached scsi generic sg2 type 5
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
udevd version 125 started
Adding 1349420k swap on /dev/sda6.  Priority:-1 extents:1 across:1349420k
EXT3 FS on sda5, internal journal
LASI 82596 driver - Revision: 1.30
loop: module loaded
eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
eth0: no IPv6 routers present

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:02:55 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: HPPA64: badness while freeing init memory
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On Tue, Sep 30, 2008 at 01:16:34PM +0300, Meelis Roos wrote:
> Just tried 2.6.27-rc8 on a freshly installed HP 9000 L1000-44. With 
> current config it boots fine but emits two badness messages while 
> freeing unused initial memory (dmesg below).
> 
> I'm not subscribed to linux-parisc so please CC: any discussion to me.
> 

It's fine, it's only a warning, and not really any good way to avoid it.
The basic problem is we're firing off an IPI with interrupts off, which
has the possibility of deadlocking, but not in this case.

regards, Kyle
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From - Thu Nov 08 21:02:56 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: timer_interrupt delayed messages 2.6.27-rc7
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Hey,
I tested two 2.6.27-rc7 kernels on an a500.
The first had CONFIG_HZ=250 and was getting the following messages:
timer_interrupt(CPU 1): delayed! cycles 100001A37 rem 8C237  next/now 4A954C3C1C/4B954C5653
timer_interrupt(CPU 0): delayed! cycles 100000E07 rem 8B607  next/now 4A95B8EAF5/4B95B8F8FC
timer_interrupt(CPU 1): delayed! cycles 1000009CB rem 8B1CB  next/now 4B956525DC/4C95652FA7
timer_interrupt(CPU 0): delayed! cycles 100000931 rem 8B131  next/now 4B95D1D4B5/4C95D1DDE6
...

Since 8B131+931 looks remarkably close to 550 Mhz/1000, I decided to
try a CONFIG_HZ=1000 kernel and now get the following:
timer_interrupt(CPU 1): delayed! cycles 100001C74 rem 6004  next/now 2BFD187FEA/2CFD189C5E
timer_interrupt(CPU 1): delayed! cycles 100000E8A rem 521A  next/now 2CFD20A0CA/2DFD20AF54
timer_interrupt(CPU 1): delayed! cycles 100000A33 rem 4DC3  next/now 2DFD28C1AA/2EFD28CBDD
timer_interrupt(CPU 1): delayed! cycles 100000C87 rem 5017  next/now 2EFD30E28A/2FFD30EF11
...

Note that CPU0 no longer reports this error.
I suspect we have two bugs in play here.

The first one might be we have some basic bug in how the itimer is
getting programmed.  I suspect it's always off by 32-bits because IIRC
we can only program the lower 32-bits of CR16. I suspect the comparison
code gets the 32-bit rollover wrong. Is that enough clues for someone to
spot this?

The second might be 1000HZ (or 1024?) is still hardcoded in our source
code someplace.  I can't otherwise explain the "rem" values dropped more
than 4x while the "cycles" value is roughly the same (2^32 + about 0x1000).
Also CPU0 stopped reporting this error. Initialization for CPU0 is different
and those might be useful clues too.

thanks,
grant
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From - Thu Nov 08 21:02:56 2018
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From: Kyle McMartin <kyle@hera.kernel.org>
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Subject: [git patches] merge request for parisc tree
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The following changes since commit d403a6484f0341bf0624d17ece46f24f741b6a92:
  Linus Torvalds (1):
        Merge phase #1 of git://git.kernel.org/.../tip/linux-2.6-tip

are available in the git repository at:

  hera.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git master

Helge Deller (1):
      parisc: convert to generic compat_sys_ptrace

James Bottomley (1):
      parisc: initialize unwinder much earlier

Kyle McMartin (10):
      parisc: parisc-agp - fix <asm-parisc/*> -> <asm/*>
      parisc: ropes.h - fix <asm-parisc/*> -> <asm/*>
      parisc: add arch/parisc/kernel/.gitignore
      parisc: unify CCIO_COLLECT_STATS implementation
      parisc: move pdc_result to real2.S
      parisc: move include/asm-parisc to arch/parisc/include/asm
      parisc: add pdc_coproc_cfg_unlocked and set_firmware_width_unlocked
      parisc: hijack jump to start_kernel
      parisc: add new syscalls
      parisc: add rtc platform driver

 arch/parisc/Kconfig                                |    2 +
 .../asm-parisc => arch/parisc/include/asm}/Kbuild  |    0
 .../asm-parisc => arch/parisc/include/asm}/a.out.h |    0
 .../asm-parisc => arch/parisc/include/asm}/agp.h   |    0
 .../parisc/include/asm}/asmregs.h                  |    0
 .../parisc/include/asm}/assembly.h                 |    0
 .../parisc/include/asm}/atomic.h                   |    0
 .../parisc/include/asm}/auxvec.h                   |    0
 .../parisc/include/asm}/bitops.h                   |    0
 .../asm-parisc => arch/parisc/include/asm}/bug.h   |    0
 .../asm-parisc => arch/parisc/include/asm}/bugs.h  |    0
 .../parisc/include/asm}/byteorder.h                |    0
 .../asm-parisc => arch/parisc/include/asm}/cache.h |    0
 .../parisc/include/asm}/cacheflush.h               |    0
 .../parisc/include/asm}/checksum.h                 |    0
 .../parisc/include/asm}/compat.h                   |    0
 .../parisc/include/asm}/compat_rt_sigframe.h       |    0
 .../parisc/include/asm}/compat_signal.h            |    0
 .../parisc/include/asm}/compat_ucontext.h          |    0
 .../parisc/include/asm}/cputime.h                  |    0
 .../parisc/include/asm}/current.h                  |    0
 .../asm-parisc => arch/parisc/include/asm}/delay.h |    0
 .../parisc/include/asm}/device.h                   |    0
 .../asm-parisc => arch/parisc/include/asm}/div64.h |    0
 .../parisc/include/asm}/dma-mapping.h              |    0
 .../asm-parisc => arch/parisc/include/asm}/dma.h   |    0
 .../parisc/include/asm}/eisa_bus.h                 |    0
 .../parisc/include/asm}/eisa_eeprom.h              |    0
 .../asm-parisc => arch/parisc/include/asm}/elf.h   |    0
 .../parisc/include/asm}/emergency-restart.h        |    0
 .../asm-parisc => arch/parisc/include/asm}/errno.h |    0
 .../asm-parisc => arch/parisc/include/asm}/fb.h    |    0
 .../asm-parisc => arch/parisc/include/asm}/fcntl.h |    0
 .../parisc/include/asm}/fixmap.h                   |    0
 .../parisc/include/asm}/floppy.h                   |    0
 .../asm-parisc => arch/parisc/include/asm}/futex.h |    0
 .../parisc/include/asm}/grfioctl.h                 |    0
 .../parisc/include/asm}/hardirq.h                  |    0
 .../parisc/include/asm}/hardware.h                 |    0
 .../parisc/include/asm}/hw_irq.h                   |    0
 .../asm-parisc => arch/parisc/include/asm}/ide.h   |    0
 .../asm-parisc => arch/parisc/include/asm}/io.h    |    0
 .../asm-parisc => arch/parisc/include/asm}/ioctl.h |    0
 .../parisc/include/asm}/ioctls.h                   |    0
 .../parisc/include/asm}/ipcbuf.h                   |    0
 .../asm-parisc => arch/parisc/include/asm}/irq.h   |    0
 .../parisc/include/asm}/irq_regs.h                 |    0
 .../parisc/include/asm}/kdebug.h                   |    0
 .../parisc/include/asm}/kmap_types.h               |    0
 .../asm-parisc => arch/parisc/include/asm}/led.h   |    0
 .../parisc/include/asm}/linkage.h                  |    0
 .../asm-parisc => arch/parisc/include/asm}/local.h |    0
 .../parisc/include/asm}/machdep.h                  |    0
 .../parisc/include/asm}/mc146818rtc.h              |    0
 .../parisc/include/asm}/mckinley.h                 |    0
 .../asm-parisc => arch/parisc/include/asm}/mman.h  |    0
 .../asm-parisc => arch/parisc/include/asm}/mmu.h   |    0
 .../parisc/include/asm}/mmu_context.h              |    0
 .../parisc/include/asm}/mmzone.h                   |    0
 .../parisc/include/asm}/module.h                   |    0
 .../parisc/include/asm}/msgbuf.h                   |    0
 .../asm-parisc => arch/parisc/include/asm}/mutex.h |    0
 .../asm-parisc => arch/parisc/include/asm}/page.h  |    0
 .../asm-parisc => arch/parisc/include/asm}/param.h |    0
 .../parisc/include/asm}/parisc-device.h            |    0
 .../parisc/include/asm}/parport.h                  |    0
 .../asm-parisc => arch/parisc/include/asm}/pci.h   |    0
 .../asm-parisc => arch/parisc/include/asm}/pdc.h   |    5 +
 .../parisc/include/asm}/pdc_chassis.h              |    0
 .../parisc/include/asm}/pdcpat.h                   |    0
 .../parisc/include/asm}/percpu.h                   |    0
 .../asm-parisc => arch/parisc/include/asm}/perf.h  |    0
 .../parisc/include/asm}/pgalloc.h                  |    0
 .../parisc/include/asm}/pgtable.h                  |    0
 .../asm-parisc => arch/parisc/include/asm}/poll.h  |    0
 .../parisc/include/asm}/posix_types.h              |    0
 .../parisc/include/asm}/prefetch.h                 |    0
 .../parisc/include/asm}/processor.h                |    0
 .../asm-parisc => arch/parisc/include/asm}/psw.h   |    0
 .../parisc/include/asm}/ptrace.h                   |   10 +
 .../asm-parisc => arch/parisc/include/asm}/real.h  |    0
 .../parisc/include/asm}/resource.h                 |    0
 .../asm-parisc => arch/parisc/include/asm}/ropes.h |    2 +-
 .../parisc/include/asm}/rt_sigframe.h              |    0
 .../asm-parisc => arch/parisc/include/asm}/rtc.h   |    0
 .../parisc/include/asm}/runway.h                   |    0
 .../parisc/include/asm}/scatterlist.h              |    0
 .../parisc/include/asm}/sections.h                 |    0
 .../parisc/include/asm}/segment.h                  |    0
 .../parisc/include/asm}/sembuf.h                   |    0
 .../parisc/include/asm}/serial.h                   |    0
 .../asm-parisc => arch/parisc/include/asm}/setup.h |    0
 .../parisc/include/asm}/shmbuf.h                   |    0
 .../parisc/include/asm}/shmparam.h                 |    0
 .../parisc/include/asm}/sigcontext.h               |    0
 .../parisc/include/asm}/siginfo.h                  |    0
 .../parisc/include/asm}/signal.h                   |    0
 .../asm-parisc => arch/parisc/include/asm}/smp.h   |    0
 .../parisc/include/asm}/socket.h                   |    0
 .../parisc/include/asm}/sockios.h                  |    0
 .../parisc/include/asm}/spinlock.h                 |    0
 .../parisc/include/asm}/spinlock_types.h           |    0
 .../asm-parisc => arch/parisc/include/asm}/stat.h  |    0
 .../parisc/include/asm}/statfs.h                   |    0
 .../parisc/include/asm}/string.h                   |    0
 .../parisc/include/asm}/superio.h                  |    0
 .../parisc/include/asm}/system.h                   |    0
 .../parisc/include/asm}/termbits.h                 |    0
 .../parisc/include/asm}/termios.h                  |    0
 .../parisc/include/asm}/thread_info.h              |    0
 .../asm-parisc => arch/parisc/include/asm}/timex.h |    0
 .../asm-parisc => arch/parisc/include/asm}/tlb.h   |    0
 .../parisc/include/asm}/tlbflush.h                 |    0
 .../parisc/include/asm}/topology.h                 |    0
 .../asm-parisc => arch/parisc/include/asm}/traps.h |    0
 .../asm-parisc => arch/parisc/include/asm}/types.h |    0
 .../parisc/include/asm}/uaccess.h                  |    0
 .../parisc/include/asm}/ucontext.h                 |    0
 .../parisc/include/asm}/unaligned.h                |    0
 .../parisc/include/asm}/unistd.h                   |    8 +-
 .../parisc/include/asm}/unwind.h                   |    2 +
 .../asm-parisc => arch/parisc/include/asm}/user.h  |    0
 .../asm-parisc => arch/parisc/include/asm}/vga.h   |    0
 .../asm-parisc => arch/parisc/include/asm}/xor.h   |    0
 arch/parisc/kernel/.gitignore                      |    1 +
 arch/parisc/kernel/asm-offsets.c                   |    3 +
 arch/parisc/kernel/firmware.c                      |   69 ++-
 arch/parisc/kernel/head.S                          |    2 +-
 arch/parisc/kernel/ptrace.c                        |  429 ++++++++------------
 arch/parisc/kernel/real2.S                         |   12 +
 arch/parisc/kernel/setup.c                         |   29 ++-
 arch/parisc/kernel/syscall_table.S                 |    8 +-
 arch/parisc/kernel/time.c                          |   20 +-
 arch/parisc/kernel/unwind.c                        |    4 +-
 drivers/char/agp/parisc-agp.c                      |    4 +-
 drivers/parisc/ccio-dma.c                          |   43 +--
 drivers/rtc/Kconfig                                |    8 +
 drivers/rtc/Makefile                               |    1 +
 drivers/rtc/rtc-parisc.c                           |  111 +++++
 139 files changed, 456 insertions(+), 317 deletions(-)
 rename {include/asm-parisc => arch/parisc/include/asm}/Kbuild (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/a.out.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/agp.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/asmregs.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/assembly.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/atomic.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/auxvec.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/bitops.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/bug.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/bugs.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/byteorder.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/cache.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/cacheflush.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/checksum.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/compat.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/compat_rt_sigframe.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/compat_signal.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/compat_ucontext.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/cputime.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/current.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/delay.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/device.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/div64.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/dma-mapping.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/dma.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/eisa_bus.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/eisa_eeprom.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/elf.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/emergency-restart.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/errno.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/fb.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/fcntl.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/fixmap.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/floppy.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/futex.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/grfioctl.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/hardirq.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/hardware.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/hw_irq.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/ide.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/io.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/ioctl.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/ioctls.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/ipcbuf.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/irq.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/irq_regs.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/kdebug.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/kmap_types.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/led.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/linkage.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/local.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/machdep.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/mc146818rtc.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/mckinley.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/mman.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/mmu.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/mmu_context.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/mmzone.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/module.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/msgbuf.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/mutex.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/page.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/param.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/parisc-device.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/parport.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/pci.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/pdc.h (99%)
 rename {include/asm-parisc => arch/parisc/include/asm}/pdc_chassis.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/pdcpat.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/percpu.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/perf.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/pgalloc.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/pgtable.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/poll.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/posix_types.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/prefetch.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/processor.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/psw.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/ptrace.h (85%)
 rename {include/asm-parisc => arch/parisc/include/asm}/real.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/resource.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/ropes.h (99%)
 rename {include/asm-parisc => arch/parisc/include/asm}/rt_sigframe.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/rtc.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/runway.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/scatterlist.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/sections.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/segment.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/sembuf.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/serial.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/setup.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/shmbuf.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/shmparam.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/sigcontext.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/siginfo.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/signal.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/smp.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/socket.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/sockios.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/spinlock.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/spinlock_types.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/stat.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/statfs.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/string.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/superio.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/system.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/termbits.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/termios.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/thread_info.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/timex.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/tlb.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/tlbflush.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/topology.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/traps.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/types.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/uaccess.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/ucontext.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/unaligned.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/unistd.h (99%)
 rename {include/asm-parisc => arch/parisc/include/asm}/unwind.h (99%)
 rename {include/asm-parisc => arch/parisc/include/asm}/user.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/vga.h (100%)
 rename {include/asm-parisc => arch/parisc/include/asm}/xor.h (100%)
 create mode 100644 arch/parisc/kernel/.gitignore
 create mode 100644 drivers/rtc/rtc-parisc.c
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From - Thu Nov 08 21:02:56 2018
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [git patches] merge request for parisc tree
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To: Kyle McMartin <kyle@hera.kernel.org>
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Kyle McMartin wrote:
> The following changes since commit d403a6484f0341bf0624d17ece46f24f741b6a92:
>   Linus Torvalds (1):
>         Merge phase #1 of git://git.kernel.org/.../tip/linux-2.6-tip
> 
> are available in the git repository at:
> 
>   hera.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git master
 > [...]

Hi Kyle,

thanks for pushing some patches upstream.
But is there a reason, why you didn't applied others (e.g. the userspace 
crash fix)?

Helge
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From - Thu Nov 08 21:02:56 2018
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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] parisc: remove dead BIO_VMERGE_BOUNDARY and
 BIO_VMERGE_MAX_SIZE definitions
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The block layer dropped the virtual merge feature
(b8b3e16cfe6435d961f6aaebcfd52a1ff2a988c5). BIO_VMERGE_BOUNDARY and
BIO_VMERGE_MAX_SIZE definitions are meaningless now.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 arch/parisc/include/asm/io.h |    6 ------
 arch/parisc/kernel/setup.c   |    5 -----
 drivers/parisc/ccio-dma.c    |    2 --
 drivers/parisc/sba_iommu.c   |    2 --
 4 files changed, 0 insertions(+), 15 deletions(-)

diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 55ddb18..b92efb3 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -4,12 +4,6 @@
 #include <linux/types.h>
 #include <asm/pgtable.h>
 
-extern unsigned long parisc_vmerge_boundary;
-extern unsigned long parisc_vmerge_max_size;
-
-#define BIO_VMERGE_BOUNDARY	parisc_vmerge_boundary
-#define BIO_VMERGE_MAX_SIZE	parisc_vmerge_max_size
-
 #define virt_to_phys(a) ((unsigned long)__pa(a))
 #define phys_to_virt(a) __va(a)
 #define virt_to_bus virt_to_phys
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 7d27853..8d8b024 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -58,11 +58,6 @@ int parisc_bus_is_phys __read_mostly = 1;	/* Assume no IOMMU is present */
 EXPORT_SYMBOL(parisc_bus_is_phys);
 #endif
 
-/* This sets the vmerge boundary and size, it's here because it has to
- * be available on all platforms (zero means no-virtual merging) */
-unsigned long parisc_vmerge_boundary = 0;
-unsigned long parisc_vmerge_max_size = 0;
-
 void __init setup_cmdline(char **cmdline_p)
 {
 	extern unsigned int boot_args[];
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index dcc1e99..62cc21d 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1578,8 +1578,6 @@ static int __init ccio_probe(struct parisc_device *dev)
 
 	ioc_count++;
 
-	parisc_vmerge_boundary = IOVP_SIZE;
-	parisc_vmerge_max_size = BITS_PER_LONG * IOVP_SIZE;
 	parisc_has_iommu();
 	return 0;
 }
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index bc73b96..bdc9a0a 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1979,8 +1979,6 @@ sba_driver_callback(struct parisc_device *dev)
 	proc_create("sba_iommu-bitmap", 0, root, &sba_proc_bitmap_fops);
 #endif
 
-	parisc_vmerge_boundary = IOVP_SIZE;
-	parisc_vmerge_max_size = IOVP_SIZE * BITS_PER_LONG;
 	parisc_has_iommu();
 	return 0;
 }
-- 
1.5.4.2

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From: "Carlos O'Donell" <carlos@systemhalted.org>
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On Sat, Sep 6, 2008 at 4:24 AM, Petr Salinger <Petr.Salinger@seznam.cz> wrote:
> Imagine function in a shared library foo which takes as argument
> pthread_mutex_t and does usual:
>
>        pthread_mutex_lock()
>        do some work
>        pthread_mutex_unlock()
>
> And a program bar, which uses foo. Inside bar is a static initialized lock.
> The foo might be (re)compiled against NPTL, while bar would be still
> compiled against LT. Therefore check_and_reset() should be called as long as
> any installed (debian) package have not been recompiled against NPTL. The
> overhead of check_and_reset() looks very small, it should be no problem at
> all. The harder part is to determine each place, where
> check_and_reset() should be called. It have to be in all places,
> where static initialized lock might be passed for the 1st time,
> i.e. it should be in  pthread_mutex_lock(), but not in
> pthread_mutex_unlock().

I reviewed the compatibility provided by glibc for the pthread_cond_t
change in 2.3.2, and I see no such guarantee that an address of a
pthread_cont_t in an old binary can be safely passed to a library
rebuilt against the new libc . When upstream changed pthread_cond_t,
making it larger, they versioned the interface, and the old function
mallocs a pointer to the new structure and call the new function with
the newly malloc'd structure.

I think 99% of all situations are covered by providing an old
function. Guarding the new function against a mixed ABI use seems like
a performance penalty with an unknown benefit. Clearly if upstream
glibc didn't think it was usefull, should we also ignore this
scenario?

I have compat patches in testing on my SMP parisc64 box. I should have
some results by next week.

Cheers,
Carlos.
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Linux 2.6.28-rc1: slab error in cache_alloc_debugcheck_after()
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Just tried 2.6.28-rc1:
....
usbcore: registered new interface driver usbhid
usbhid: v2.6:USB HID core driver
TCP cubic registered
NET: Registered protocol family 17
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
rtc-parisc rtc-parisc: setting system clock to 2008-10-26 19:59:18 UTC 
(1225051158)
usb 1-1: new low speed USB device using ohci_hcd and address 2
usb 1-1: configuration #1 chosen from 1 choice
input: Logitech N48 as /class/input/input0
generic-usb 0003:046D:C001.0001: input,hidraw0: USB HID v1.00 Mouse 
[Logitech N48] on usb-0000:00:0e.2-1/inpu0
usb 1-1: New USB device found, idVendor=046d, idProduct=c001
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-1: Product: N48
usb 1-1: Manufacturer: Logitech
usb 1-2: new low speed USB device using ohci_hcd and address 3
usb 1-2: configuration #1 chosen from 1 choice
slab error in cache_alloc_debugcheck_after(): cache `size-512': double 
free, or memory outside object was oven
Backtrace:
  [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
  [<101a5cac>] kmem_cache_alloc+0x1a0/0x1e8
  [<1042e294>] hid_register_report+0x60/0xc4
  [<1042e5f8>] hid_add_field+0x40/0x1a4
  [<1042ec40>] hid_parser_main+0x94/0xc4
Slab corruption: size-512 start=8f1ac768, len=512
Redzone: 0x9f911029d74e35b/0x0.
Last user: [<00000000>](0x0)
190: 6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 00 00 00 00
1a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
1e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Prev obj: start=8f1ac550, len=512
Redzone: 0x9f911029d74e35b/0x9f911029d74e35b.
Last user: [<00000000>](0x0)
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
Next obj: start=8f1ac980, len=512
Redzone: 0x0/0x9f911029d74e35b.
Last user: [<1042e294>](hid_register_report+0x60/0xc4)
000: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a
010: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a
slab error in cache_alloc_debugcheck_after(): cache `size-512': double 
free, or memory outside object was oven
Backtrace:
  [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
  [<101a6184>] __kmalloc_track_caller+0x1e4/0x230
  [<10456778>] __alloc_skb+0x78/0x264
  [<10456a54>] dev_alloc_skb+0x1c/0x44
  [<103424a0>] tulip_rx+0x1f8/0x3f4
  [<10342804>] tulip_interrupt+0x168/0xab0
  [<10172758>] handle_IRQ_event+0x44/0x8c
  [<101728e8>] __do_IRQ+0x148/0x1c8
  [<1011517c>] do_cpu_irq_mask+0x194/0x204
  [<10118068>] intr_return+0x0/0x4
  [<10110958>] _spin_unlock_irqrestore+0x10/0x20
  [<10146e30>] __do_softirq+0x80/0x19c
  [<1019f9d8>] shmem_swp_alloc+0x208/0x248
  [<101bf378>] dispose_list+0x7c/0x138
  [<10110958>] _spin_unlock_irqrestore+0x10/0x20
  [<10172758>] handle_IRQ_event+0x44/0x8c

8f1ac760: redzone 1:0x9f911029d74e35b, redzone 2:0x0
  [<1042ef48>] hid_parse_report+0xc8/0x14c
  [<1044d4f0>] usbhid_parse+0x1dc/0x220
  [<104300d0>] hid_device_probe+0x74/0xec
  [<10336430>] really_probe+0x10c/0x20c
  [<103365ac>] driver_probe_device+0x5c/0x78
  [<103353b4>] bus_for_each_drv+0x54/0x9c
  [<1033663c>] device_attach+0x5c/0x80
  [<1033557c>] bus_attach_device+0x2c/0x68
  [<1033396c>] device_add+0x150/0x294
  [<104303d4>] hid_add_device+0xe8/0x10c
  [<1044dce8>] hid_probe+0x1a8/0x208

8f1ac978: redzone 1:0x0, redzone 2:0x9f911029d74e35b
Slab corruption: size-4096 start=8f1a9000, len=4096
040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Sending BOOTP requests .<6>input: SILITEK USB Keyboard and Mouse as 
/class/input/input1
  OK
eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.
Slab corruption: size-512 start=8f1ac550, len=512
Redzone: 0x9f911029d74e35b/0x9f911029d74e35b.
Last user: [<00000000>](0x0)
130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Prev obj: start=8f1ac338, len=512
Redzone: 0x9f911029d74e35b/0x9f911029d74e35b.
Last user: [<10456f00>](__kfree_skb+0x10/0x24)
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
Next obj: start=8f1ac768, len=512
Redzone: 0xd84156c5635688c0/0xd84156c5635688c0.
Last user: [<1042e294>](hid_register_report+0x60/0xc4)
000: 8f 13 a4 3c 8f 13 a4 3c 00 00 00 00 00 00 00 01
010: 8f 97 11 88 00 00 00 00 00 00 00 00 00 00 00 00
Slab corruption: size-32 start=8f1aa590, len=32
Redzone: 0x0/0x0.
Last user: [<00000000>](0x0)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Prev obj: start=8f1aa558, len=32
Redzone: 0x0/0x0.
Last user: [<00000000>](0x0)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Next obj: start=8f1aa5c8, len=32
Redzone: 0xd84156c5635688c0/0xd84156c5635688c0.
Last user: [<101ffd90>](sysfs_new_dirent+0x40/0x1a4)
000: 73 75 62 73 79 73 74 65 6d 00 5a 5a 5a 5a 5a 5a
010: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a a5
slab error in cache_alloc_debugcheck_after(): cache `size-32': double 
free, or memory outside object was overn
Backtrace:
  [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
  [<101a5f54>] __kmalloc+0x1e4/0x230
  [<102c2f9c>] kobject_get_path+0x3c/0x74
  [<102c3d64>] kobject_uevent_env+0x100/0x3c8
  [<10333964>] device_add+0x148/0x294
  [<10333e64>] device_create_vargs+0x98/0xd0
  [<10333ec8>] device_create+0x2c/0x38
  [<1043fdbc>] hidraw_connect+0xec/0x170
  [<1042fe00>] hid_connect+0xa4/0x28c
  [<1043010c>] hid_device_probe+0xb0/0xec
  [<10336430>] really_probe+0x10c/0x20c
  [<103365ac>] driver_probe_device+0x5c/0x78
  [<103353b4>] bus_for_each_drv+0x54/0x9c
  [<1033663c>] device_attach+0x5c/0x80
  [<1033557c>] bus_attach_device+0x2c/0x68
  [<1033396c>] device_add+0x150/0x294

8f1aa588: redzone 1:0x0, redzone 2:0x0
Slab corruption: size-64 start=8f139188, len=64
Redzone: 0x0/0x9f911029d74e35b.
Last user: [<00000000>](0x0)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
030: 00 00 00 00 00 00 00 00 6b 6b 6b 6b 6b 6b 6b a5
Prev obj: start=8f139130, len=64
Redzone: 0x9f911029d74e35b/0x9f911029d74e35b.
Last user: [<00000000>](0x0)
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
Next obj: start=8f1391e0, len=64
Redzone: 0xd84156c5635688c0/0xd84156c5635688c0.
Last user: [<1043fd04>](hidraw_connect+0x34/0x170)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
slab error in cache_alloc_debugcheck_after(): cache `size-64': double 
free, or memory outside object was overn
Backtrace:
  [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
  [<101a5cac>] kmem_cache_alloc+0x1a0/0x1e8
  [<101550c0>] call_usermodehelper_setup+0x30/0x70
  [<102c3fc8>] kobject_uevent_env+0x364/0x3c8
  [<10333964>] device_add+0x148/0x294
  [<10333e64>] device_create_vargs+0x98/0xd0
  [<10333ec8>] device_create+0x2c/0x38
  [<1043fdbc>] hidraw_connect+0xec/0x170
  [<1042fe00>] hid_connect+0xa4/0x28c
  [<1043010c>] hid_device_probe+0xb0/0xec
  [<10336430>] really_probe+0x10c/0x20c
  [<103365ac>] driver_probe_device+0x5c/0x78
  [<103353b4>] bus_for_each_drv+0x54/0x9c
  [<1033663c>] device_attach+0x5c/0x80
  [<1033557c>] bus_attach_device+0x2c/0x68
  [<1033396c>] device_add+0x150/0x294

8f139180: redzone 1:0x0, redzone 2:0x9f911029d74e35b
generic-usb 0003:047B:0002.0002: input,hidraw1: USB HID v1.00 Keyboard 
[SILITEK USB Keyboard and Mouse] on us0
Slab corruption: size-32 start=8f1aa558, len=32
Redzone: 0x0/0x0.
Last user: [<00000000>](0x0)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Prev obj: start=8f1aa520, len=32
Redzone: 0x9f911029d74e35b/0x0.
Last user: [<00000000>](0x0)
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5
Next obj: start=8f1aa590, len=32
Redzone: 0xd84156c5635688c0/0xd84156c5635688c0.
Last user: [<102ccb7c>](kvasprintf+0x44/0x84)
000: 75 73 62 64 65 76 31 2e 33 5f 65 70 38 31 00 5a
010: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a a5
slab error in cache_alloc_debugcheck_after(): cache `size-32': double 
free, or memory outside object was overn
Backtrace:
  [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
  [<101a6184>] __kmalloc_track_caller+0x1e4/0x230
  [<10188b70>] kstrdup+0x44/0x7c
  [<101ffd90>] sysfs_new_dirent+0x40/0x1a4
  [<10200594>] create_dir+0x38/0x124
  [<102006f0>] sysfs_create_dir+0x48/0x68
  [<102c2e6c>] create_dir+0x24/0x60
  [<102c3168>] kobject_add_internal+0x80/0x104
  [<102c33e0>] kobject_add+0x5c/0x68
  [<10333898>] device_add+0x7c/0x294
  [<103ceb60>] usb_create_ep_files+0x10c/0x198
  [<103ce3e0>] usb_create_sysfs_intf_files+0x90/0xc8
  [<103cb038>] usb_set_configuration+0x3b4/0x3f4
  [<103d24fc>] generic_probe+0x64/0xb4
  [<103cb43c>] usb_probe_device+0x48/0x54
  [<10336430>] really_probe+0x10c/0x20c

8f1aa550: redzone 1:0x0, redzone 2:0x0
slab error in cache_alloc_debugcheck_after(): cache `size-32': double 
free, or memory outside object was overn
Backtrace:
  [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
  [<101a6184>] __kmalloc_track_caller+0x1e4/0x230
  [<10188b70>] kstrdup+0x44/0x7c
  [<101ffd90>] sysfs_new_dirent+0x40/0x1a4
  [<10201130>] sysfs_do_create_link+0x134/0x2c8
  [<103337ac>] device_create_sys_dev_entry+0x50/0x64
  [<10333920>] device_add+0x104/0x294
  [<103ceb60>] usb_create_ep_files+0x10c/0x198
  [<103ce3e0>] usb_create_sysfs_intf_files+0x90/0xc8
  [<103cb038>] usb_set_configuration+0x3b4/0x3f4
  [<103d24fc>] generic_probe+0x64/0xb4
  [<103cb43c>] usb_probe_device+0x48/0x54
  [<10336430>] really_probe+0x10c/0x20c
  [<103365ac>] driver_probe_device+0x5c/0x78
  [<103353b4>] bus_for_each_drv+0x54/0x9c
  [<1033663c>] device_attach+0x5c/0x80

8f1aa518: redzone 1:0x9f911029d74e35b, redzone 2:0x0
Slab corruption: size-32 start=8f1aa4e8, len=32
Redzone: 0x0/0x9f911029d74e35b.
Last user: [<00000000>](0x0)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 6b 6b 6b 6b 6b 6b 6b a5
Prev obj: start=8f1aa4b0, len=32
Redzone: 0x9f911029d74e35b/0x0.
Last user: [<00000000>](0x0)
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Next obj: start=8f1aa520, len=32
Redzone: 0xd84156c5635688c0/0xd84156c5635688c0.
Last user: [<101ffd90>](sysfs_new_dirent+0x40/0x1a4)
000: 32 35 32 3a 34 00 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a
010: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a a5
slab error in cache_alloc_debugcheck_after(): cache `size-32': double 
free, or memory outside object was overn
Backtrace:
  [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
  [<101a6184>] __kmalloc_track_caller+0x1e4/0x230
  [<10188b70>] kstrdup+0x44/0x7c
  [<101ffd90>] sysfs_new_dirent+0x40/0x1a4
  [<10201130>] sysfs_do_create_link+0x134/0x2c8
  [<103334b8>] device_add_class_symlinks+0x4c/0x1c4
  [<10333930>] device_add+0x114/0x294
  [<103ceb60>] usb_create_ep_files+0x10c/0x198
  [<103ce3e0>] usb_create_sysfs_intf_files+0x90/0xc8
  [<103cb038>] usb_set_configuration+0x3b4/0x3f4
  [<103d24fc>] generic_probe+0x64/0xb4
  [<103cb43c>] usb_probe_device+0x48/0x54
  [<10336430>] really_probe+0x10c/0x20c
  [<103365ac>] driver_probe_device+0x5c/0x78
  [<103353b4>] bus_for_each_drv+0x54/0x9c
  [<1033663c>] device_attach+0x5c/0x80

8f1aa4e0: redzone 1:0x0, redzone 2:0x9f911029d74e35b
Slab corruption: size-32 start=8f1aa4b0, len=32
Redzone: 0x9f911029d74e35b/0x0.
Last user: [<00000000>](0x0)
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Prev obj: start=8f1aa478, len=32
Redzone: 0xd84156c5635688c0/0xd84156c5635688c0.
Last user: [<101ffd90>](sysfs_new_dirent+0x40/0x1a4)
000: 62 75 73 00 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a
010: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a a5
Next obj: start=8f1aa4e8, len=32
Redzone: 0xd84156c5635688c0/0xd84156c5635688c0.
Last user: [<101ffd90>](sysfs_new_dirent+0x40/0x1a4)
000: 73 75 62 73 79 73 74 65 6d 00 5a 5a 5a 5a 5a 5a
010: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a a5
slab error in cache_alloc_debugcheck_after(): cache `size-32': double 
free, or memory outside object was overn
Backtrace:
  [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
  [<101a6184>] __kmalloc_track_caller+0x1e4/0x230
  [<10188b70>] kstrdup+0x44/0x7c
  [<101ffd90>] sysfs_new_dirent+0x40/0x1a4
  [<10201130>] sysfs_do_create_link+0x134/0x2c8
  [<10333568>] device_add_class_symlinks+0xfc/0x1c4
  [<10333930>] device_add+0x114/0x294
  [<103ceb60>] usb_create_ep_files+0x10c/0x198
  [<103ce3e0>] usb_create_sysfs_intf_files+0x90/0xc8
  [<103cb038>] usb_set_configuration+0x3b4/0x3f4
  [<103d24fc>] generic_probe+0x64/0xb4
  [<103cb43c>] usb_probe_device+0x48/0x54
  [<10336430>] really_probe+0x10c/0x20c
  [<103365ac>] driver_probe_device+0x5c/0x78
  [<103353b4>] bus_for_each_drv+0x54/0x9c
  [<1033663c>] device_attach+0x5c/0x80

8f1aa4a8: redzone 1:0x9f911029d74e35b, redzone 2:0x0
usbcore: bogus descriptor, type 0 length 0
usb 1-2: New USB device found, idVendor=047b, idProduct=0002
usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-2: Product: USB Keyboard and Mouse
usb 1-2: Manufacturer: SILITEK
IP-Config: Got BOOTP answer from 192.168.178.50, my address is 
192.168.178.70
slab error in verify_redzone_free(): cache `skbuff_head_cache': memory 
outside object was overwritten
Backtrace:
  [<101a51dc>] cache_free_debugcheck+0x18c/0x29c
  [<101a6218>] kmem_cache_free+0x48/0x194
  [<10346034>] tulip_close+0x164/0x1ec
  [<1045ed80>] dev_close+0xf8/0x120
  [<10462510>] dev_change_flags+0xb8/0x194
  [<107562bc>] ic_close_devs+0x44/0x6c
  [<10757854>] ip_auto_config+0x144/0x2e4
  [<101111ac>] do_one_initcall+0x70/0x190
  [<107361d0>] do_initcalls+0x30/0x4c
  [<107362f8>] kernel_init+0x8c/0xd4
  [<10117c5c>] ret_from_kernel_thread+0x1c/0x24

8f1af250: redzone 1:0x0, redzone 2:0xd84156c5635688c0.
slab error in verify_redzone_free(): cache `skbuff_head_cache': memory 
outside object was overwritten
Backtrace:
  [<101a51dc>] cache_free_debugcheck+0x18c/0x29c
  [<101a6218>] kmem_cache_free+0x48/0x194
  [<10346034>] tulip_close+0x164/0x1ec
  [<1045ed80>] dev_close+0xf8/0x120
  [<10462510>] dev_change_flags+0xb8/0x194
  [<107562bc>] ic_close_devs+0x44/0x6c
  [<10757854>] ip_auto_config+0x144/0x2e4
  [<101111ac>] do_one_initcall+0x70/0x190
  [<107361d0>] do_initcalls+0x30/0x4c
  [<107362f8>] kernel_init+0x8c/0xd4
  [<10117c5c>] ret_from_kernel_thread+0x1c/0x24

8f1af190: redzone 1:0xd84156c5635688c0, redzone 2:0x0.
IP-Config: Complete:
      device=eth0, addr=192.168.178.70, mask=255.255.255.0, 
gw=192.168.178.1,
      host=c3000, domain=box, nis-domain=(none),
      bootserver=192.168.178.50, rootserver=192.168.178.50, rootpath=
md: Skipping autodetection of RAID arrays. (raid=autodetect will force)
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: <0>------------[ cut here ]------------
Badness at kernel/smp.c:332

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110 Not tainted
r00-03  0004ff0e 10672280 10148060 106daa80
r04-07  101130d8 00000000 00000001 00000000
r08-11  101130d8 00000000 106d4280 10102398
r12-15  1077aa80 10671280 00000000 f0400004
r16-19  f0000884 f000017c f0000174 fffffff1
r20-23  00000000 1077c000 00000000 00000001
r24-27  00000000 101130d8 00000001 10671280
r28-31  10734000 000002ee 8f82c280 10120f48
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1016bb18 1016bb1c
  IIR: 03ffe01f    ISR: 102401fe  IOR: 0b02c19c
  CPU:        0   CR30: 8f82c000 CR31: d20344f0
  ORIG_R28: 10686bdc
  IAOQ[0]: smp_call_function_mask+0x44/0x234
  IAOQ[1]: smp_call_function_mask+0x48/0x234
  RP(r2): on_each_cpu+0x1c/0x50
Backtrace:
  [<10148060>] on_each_cpu+0x1c/0x50
  [<10111748>] free_initmem+0x4c/0x230
  [<10111310>] init_post+0x10/0x100
  [<1073632c>] kernel_init+0xc0/0xd4

288k freed
slab: Internal list corruption detected in cache 'sysfs_dir_cache'(53), 
slabp 8f125000(16). Hexdump:

000: 00 10 01 00 00 20 02 00 00 00 00 f0 8f 12 50 f0
010: 00 00 00 10 00 00 00 10 00 00 00 00 ff ff ff fe
020: ff ff ff fe ff ff ff fe ff ff ff fe ff ff ff fd
030: ff ff ff fd ff ff ff fd ff ff ff fd ff ff ff fd
040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
080: 00 00 00 1a 00 00 00 1b 00 00 00 1c 00 00 00 1d
090: 00 00 00 1e 00 00 00 1f 00 00 00 20 00 00 00 21
0a0: 00 00 00 22 00 00 00 23 00 00 00 24 00 00 00 25
0b0: 00 00 00 26 00 00 00 27 00 00 00 28 00 00 00 29
0c0: 00 00 00 2a 00 00 00 2b 00 00 00 2c 00 00 00 2d
0d0: 00 00 00 2e 00 00 00 2f 00 00 00 30 00 00 00 31
0e0: 00 00 00 32 00 00 00 33 00 00 00 34 ff ff ff ff
------------[ cut here ]------------
kernel BUG at mm/slab.c:2941!

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000100001110 Tainted: G        W
r00-03  0004010e 1068722c 101a53cc 000000f0
r04-07  8f8081c0 8f125000 00000002 8f1250f0
r08-11  8f809420 00000000 106d4280 1010e700
r12-15  1077aa80 10671280 00000000 f0400004
r16-19  f0000884 f000017c f0000174 1068722c
r20-23  1077aa64 00000000 000092a0 1032a2d8
r24-27  ffffffff 105d95f0 10687294 10671280
r28-31  00000001 000002ee 8f8603c0 10120f48
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101a53cc 101a53d0
  IIR: 03ffe01f    ISR: 10240001  IOR: a1e872a0
  CPU:        0   CR30: 8f860000 CR31: d20344f0
  ORIG_R28: 00000000
  IAOQ[0]: check_slabp+0xe0/0xf8
  IAOQ[1]: check_slabp+0xe4/0xf8
  RP(r2): check_slabp+0xe0/0xf8
Backtrace:
  [<101a590c>] free_block+0xc0/0x188
  [<101a6a7c>] drain_array+0xa4/0x108
  [<101a6b60>] cache_reap+0x80/0x15c
  [<10155904>] run_workqueue+0x124/0x1d4
  [<10155a38>] worker_thread+0x84/0xf8
  [<1015a168>] kthread+0x5c/0xa0
  [<10117c5c>] ret_from_kernel_thread+0x1c/0x24

Backtrace:
  [<10113db8>] die_if_kernel+0x130/0x1a0
  [<10113f18>] handle_break+0x8c/0xf0
  [<101147a0>] handle_interruption+0x570/0x58c
  [<10118078>] intr_check_sig+0x0/0x34
  [<101107b8>] _spin_lock_irqsave+0x14/0x24
  [<101a53d0>] check_slabp+0xe4/0xf8
  [<1019f9d8>] shmem_swp_alloc+0x208/0x248
  [<101bf378>] dispose_list+0x7c/0x138
  [<1010e700>] schedule_timeout+0xb4/0xd8
  [<10303b0c>] soft_cursor+0x1c8/0x1f8
  [<10303870>] bit_cursor+0x50c/0x54c
  [<101a6b60>] cache_reap+0x80/0x15c
  [<10155904>] run_workqueue+0x124/0x1d4
  [<10155a38>] worker_thread+0x84/0xf8
  [<1015a168>] kthread+0x5c/0xa0
  [<10117c5c>] ret_from_kernel_thread+0x1c/0x24

Slab corruption: size-32 start=8f121558, len=32
Redzone: 0x0/0x0.
Last user: [<00000000>](0x0)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Prev obj: start=8f121520, len=32
Redzone: 0x9f911029d74e35b/0x0.
Last user: [<00000000>](0x0)
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5
Next obj: start=8f121590, len=32
Redzone: 0xd84156c5635688c0/0xd84156c5635688c0.
Last user: [<101734f0>](request_irq+0x8c/0x12c)
000: 10 32 8b ec 00 00 00 00 00 00 00 00 10 5c 5a cc
010: 8f 13 90 d8 00 00 00 00 00 00 00 03 8f 12 09 78
slab error in cache_alloc_debugcheck_after(): cache `size-32': double 
free, or memory outside object was overn
Backtrace:
  [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
  [<101a5f54>] __kmalloc+0x1e4/0x230
  [<101eb748>] load_elf_binary+0x26c/0xbfc
  [<101afda8>] search_binary_handler+0x13c/0x3a4
  [<101b0174>] do_execve+0x140/0x254
  [<1011ee84>] sys_execve+0x40/0xa4
  [<10117c84>] __execve+0x20/0x34
  [<101b529c>] may_open+0x94/0x214
  [<101a52c0>] cache_free_debugcheck+0x270/0x29c
  [<101a6218>] kmem_cache_free+0x48/0x194
  [<101a8f38>] fd_install+0x38/0x7c
  [<101b7c24>] sys_dup+0x44/0x58
  [<101113cc>] init_post+0xcc/0x100

8f121550: redzone 1:0x0, redzone 2:0x0
slab error in cache_alloc_debugcheck_after(): cache `size-32': double 
free, or memory outside object was overn
Backtrace:
  [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
  [<101a5cac>] kmem_cache_alloc+0x1a0/0x1e8
  [<101f1d04>] proc_reg_open+0x44/0x134
  [<101a8a7c>] __dentry_open+0x220/0x3b0
  [<101a8db8>] nameidata_to_filp+0x30/0x50
  [<101b5818>] do_filp_open+0x2f4/0x73c
  [<101a8fec>] do_sys_open+0x70/0x120
  [<101190c0>] syscall_exit+0x0/0x28

8f121518: redzone 1:0x9f911029d74e35b, redzone 2:0x0
Slab corruption: size-4096 start=8f127000, len=4096
440: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
450: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
460: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
470: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
7c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
7d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

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From - Thu Nov 08 21:02:56 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Linux 2.6.28-rc1: slab error in cache_alloc_debugcheck_after()
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To: Helge Deller <deller@gmx.de>
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On Sun, 2008-10-26 at 21:14 +0100, Helge Deller wrote:
> Just tried 2.6.28-rc1:
> ....
> usbcore: registered new interface driver usbhid
> usbhid: v2.6:USB HID core driver
> TCP cubic registered
> NET: Registered protocol family 17
> RPC: Registered udp transport module.
> RPC: Registered tcp transport module.
> rtc-parisc rtc-parisc: setting system clock to 2008-10-26 19:59:18 UTC 
> (1225051158)
> usb 1-1: new low speed USB device using ohci_hcd and address 2
> usb 1-1: configuration #1 chosen from 1 choice
> input: Logitech N48 as /class/input/input0
> generic-usb 0003:046D:C001.0001: input,hidraw0: USB HID v1.00 Mouse 
> [Logitech N48] on usb-0000:00:0e.2-1/inpu0
> usb 1-1: New USB device found, idVendor=046d, idProduct=c001
> usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> usb 1-1: Product: N48
> usb 1-1: Manufacturer: Logitech
> usb 1-2: new low speed USB device using ohci_hcd and address 3
> usb 1-2: configuration #1 chosen from 1 choice
> slab error in cache_alloc_debugcheck_after(): cache `size-512': double 
> free, or memory outside object was oven
> Backtrace:
>   [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
>   [<101a5cac>] kmem_cache_alloc+0x1a0/0x1e8
>   [<1042e294>] hid_register_report+0x60/0xc4
>   [<1042e5f8>] hid_add_field+0x40/0x1a4
>   [<1042ec40>] hid_parser_main+0x94/0xc4

If it's a double free this is probably in the hid layer.

I have to say that ion (pa8900) boots just fine with 2.6.28-rc1. I have
HID support built, but nothing to activate it.

James


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From - Thu Nov 08 21:02:56 2018
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From: akpm@linux-foundation.org
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Subject: [patch 1/2] parisc/lib/: make code static
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From: Adrian Bunk <bunk@kernel.org>

Make the following needlessly global code static:

- iomap.c: struct iomap_ops[]
- memcpy.c: pa_memcpy()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/parisc/lib/iomap.c  |    2 +-
 arch/parisc/lib/memcpy.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff -puN arch/parisc/lib/iomap.c~parisc-lib-make-code-static arch/parisc/lib/iomap.c
--- a/arch/parisc/lib/iomap.c~parisc-lib-make-code-static
+++ a/arch/parisc/lib/iomap.c
@@ -261,7 +261,7 @@ static const struct iomap_ops iomem_ops 
 	iomem_write32r,
 };
 
-const struct iomap_ops *iomap_ops[8] = {
+static const struct iomap_ops *iomap_ops[8] = {
 	[0] = &ioport_ops,
 	[7] = &iomem_ops
 };
diff -puN arch/parisc/lib/memcpy.c~parisc-lib-make-code-static arch/parisc/lib/memcpy.c
--- a/arch/parisc/lib/memcpy.c~parisc-lib-make-code-static
+++ a/arch/parisc/lib/memcpy.c
@@ -275,7 +275,7 @@ handle_store_error:
 
 
 /* Returns 0 for success, otherwise, returns number of bytes not transferred. */
-unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
 {
 	register unsigned long src, dst, t1, t2, t3;
 	register unsigned char *pcs, *pcd;
_
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From - Thu Nov 08 21:02:57 2018
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From: akpm@linux-foundation.org
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Subject: [patch 2/2] drivers/parisc/: make code static
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From: Adrian Bunk <bunk@kernel.org>

Make the following needlessly global code static:

- asp.c: asp_init_chip()
- ccio-dma.c: ccio_io_pdir_entry()
- dino.c: struct dino_port_ops
- dino.c: struct dino_bios_ops
- hppb.c: struct hppb_card_head
- lasi.c: lasi_led_init()
- lasi.c: lasi_init_chip()
- lba_pci.c: struct lba_bios_ops
- sba_iommu.c: sba_io_pdir_entry()
- sba_iommu.c: sba_driver_callback()
- sba_iommu.c: sba_driver_callback()
- wax.c: wax_init_chip()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/parisc/asp.c       |    3 +--
 drivers/parisc/ccio-dma.c  |    2 +-
 drivers/parisc/dino.c      |    4 ++--
 drivers/parisc/hppb.c      |    2 +-
 drivers/parisc/lasi.c      |    5 ++---
 drivers/parisc/lba_pci.c   |    2 +-
 drivers/parisc/sba_iommu.c |    7 +++----
 drivers/parisc/wax.c       |    3 +--
 8 files changed, 12 insertions(+), 16 deletions(-)

diff -puN drivers/parisc/asp.c~drivers-parisc-make-code-static drivers/parisc/asp.c
--- a/drivers/parisc/asp.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/asp.c
@@ -71,8 +71,7 @@ static void asp_choose_irq(struct parisc
  */
 #define ASP_INTERRUPT_ADDR 0xf0800000
 
-int __init
-asp_init_chip(struct parisc_device *dev)
+static int __init asp_init_chip(struct parisc_device *dev)
 {
 	struct gsc_irq gsc_irq;
 	int ret;
diff -puN drivers/parisc/ccio-dma.c~drivers-parisc-make-code-static drivers/parisc/ccio-dma.c
--- a/drivers/parisc/ccio-dma.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/ccio-dma.c
@@ -555,7 +555,7 @@ static u32 hint_lookup[] = {
  * (Load Coherence Index) instruction.  The 8 bits used for the virtual
  * index are bits 12:19 of the value returned by LCI.
  */ 
-void CCIO_INLINE
+static void CCIO_INLINE
 ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
 		   unsigned long hints)
 {
diff -puN drivers/parisc/dino.c~drivers-parisc-make-code-static drivers/parisc/dino.c
--- a/drivers/parisc/dino.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/dino.c
@@ -287,7 +287,7 @@ DINO_PORT_OUT(b,  8, 3)
 DINO_PORT_OUT(w, 16, 2)
 DINO_PORT_OUT(l, 32, 0)
 
-struct pci_port_ops dino_port_ops = {
+static struct pci_port_ops dino_port_ops = {
 	.inb	= dino_in8,
 	.inw	= dino_in16,
 	.inl	= dino_in32,
@@ -690,7 +690,7 @@ dino_fixup_bus(struct pci_bus *bus)
 }
 
 
-struct pci_bios_ops dino_bios_ops = {
+static struct pci_bios_ops dino_bios_ops = {
 	.init		= dino_bios_init,
 	.fixup_bus	= dino_fixup_bus
 };
diff -puN drivers/parisc/hppb.c~drivers-parisc-make-code-static drivers/parisc/hppb.c
--- a/drivers/parisc/hppb.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/hppb.c
@@ -29,7 +29,7 @@ struct hppb_card {
 	struct hppb_card *next;
 };
 
-struct hppb_card hppb_card_head = {
+static struct hppb_card hppb_card_head = {
 	.hpa = 0,
 	.next = NULL,
 };
diff -puN drivers/parisc/lasi.c~drivers-parisc-make-code-static drivers/parisc/lasi.c
--- a/drivers/parisc/lasi.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/lasi.c
@@ -107,7 +107,7 @@ lasi_init_irq(struct gsc_asic *this_lasi
 
 #else
 
-void __init lasi_led_init(unsigned long lasi_hpa)
+static void __init lasi_led_init(unsigned long lasi_hpa)
 {
 	unsigned long datareg;
 
@@ -163,8 +163,7 @@ static void lasi_power_off(void)
 	gsc_writel(0x02, datareg);
 }
 
-int __init
-lasi_init_chip(struct parisc_device *dev)
+static int __init lasi_init_chip(struct parisc_device *dev)
 {
 	extern void (*chassis_power_off)(void);
 	struct gsc_asic *lasi;
diff -puN drivers/parisc/lba_pci.c~drivers-parisc-make-code-static drivers/parisc/lba_pci.c
--- a/drivers/parisc/lba_pci.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/lba_pci.c
@@ -824,7 +824,7 @@ lba_fixup_bus(struct pci_bus *bus)
 }
 
 
-struct pci_bios_ops lba_bios_ops = {
+static struct pci_bios_ops lba_bios_ops = {
 	.init =		lba_bios_init,
 	.fixup_bus =	lba_fixup_bus,
 };
diff -puN drivers/parisc/sba_iommu.c~drivers-parisc-make-code-static drivers/parisc/sba_iommu.c
--- a/drivers/parisc/sba_iommu.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/sba_iommu.c
@@ -561,7 +561,7 @@ typedef unsigned long space_t;
  * IOMMU uses little endian for the pdir.
  */
 
-void SBA_INLINE
+static void SBA_INLINE
 sba_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
 		  unsigned long hint)
 {
@@ -1874,7 +1874,7 @@ static struct parisc_device_id sba_tbl[]
 	{ 0, }
 };
 
-int sba_driver_callback(struct parisc_device *);
+static int sba_driver_callback(struct parisc_device *);
 
 static struct parisc_driver sba_driver = {
 	.name =		MODULE_NAME,
@@ -1887,8 +1887,7 @@ static struct parisc_driver sba_driver =
 ** If so, initialize the chip and tell other partners in crime they
 ** have work to do.
 */
-int
-sba_driver_callback(struct parisc_device *dev)
+static int sba_driver_callback(struct parisc_device *dev)
 {
 	struct sba_device *sba_dev;
 	u32 func_class;
diff -puN drivers/parisc/wax.c~drivers-parisc-make-code-static drivers/parisc/wax.c
--- a/drivers/parisc/wax.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/wax.c
@@ -68,8 +68,7 @@ wax_init_irq(struct gsc_asic *wax)
 //	gsc_writel(0xFFFFFFFF, base+0x2000); /* RS232-B on Wax */
 }
 
-int __init
-wax_init_chip(struct parisc_device *dev)
+static int __init wax_init_chip(struct parisc_device *dev)
 {
 	struct gsc_asic *wax;
 	struct parisc_device *parent;
_
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From - Thu Nov 08 21:02:57 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel.input,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: 2.6.28-rc2: USB/INPUT: slab error in cache_alloc_debugcheck_after(): double free?
Date: Fri, 31 Oct 2008 00:11:08 +0100
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I noticed various slab errors with complete kernel crashes with my USB keyboard/mouse on a 32bit parisc machine with both 2.6.28-rc1 and -rc2.
Kernel 2.6.27 was still OK.

Linux kernel bootlog shows:
---------------
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci_hcd 0000:00:0e.2: OHCI Host Controller
ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:0e.2: irq 1, io mem 0xf2007000
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: OHCI Host Controller
usb usb1: Manufacturer: Linux 2.6.28-rc2 ohci_hcd
usb usb1: SerialNumber: 0000:00:0e.2
uhci_hcd: USB Universal Host Controller Interface driver


After sucessful bootup (without any USB devices attached)
I get this when I insert a USB keyboard:
---------------
usb 1-1: new low speed USB device using ohci_hcd and address 2
usb 1-1: configuration #1 chosen from 1 choice
input: SILITEK USB Keyboard and Mouse as /class/input/input0
Slab corruption: size-4096 start=8dd9b000, len=4096
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
generic-usb 0004:047B:0002.0001: input,hidraw0: USB HID v1.00 Keyboard [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-1/input0
input: SILITEK USB Keyboard and Mouse as /class/input/input1
generic-usb 0003:047B:0002.0002: input,hidraw1: USB HID v1.00 Mouse [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-1/input1
usb 1-1: New USB device found, idVendor=047b, idProduct=0002
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-1: Product: USB Keyboard and Mouse
usb 1-1: Manufacturer: SILITEK


Similiar when I insert a mouse:
------------------
usb 1-1: new low speed USB device using ohci_hcd and address 2
usb 1-1: configuration #1 chosen from 1 choice
input: Logitech N48 as /class/input/input0
Slab corruption: shmem_inode_cache start=8bd9daa0, len=640
Redzone: 0x0/0x9f911029d74e35b.
Last user: [<00000000>](0x0)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Prev obj: start=8bd9d870, len=640
Redzone: 0x6b6b6b6b6b6b6b6b/0x0.
Last user: [<00000000>](0x0)
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
slab error in cache_alloc_debugcheck_after(): cache `shmem_inode_cache': double free, or memory outside objecn
Backtrace:
 [<101a4e84>] cache_alloc_debugcheck_after+0xd8/0x200
 [<101a540c>] kmem_cache_alloc+0x1a0/0x1e8
 [<101a26e4>] shmem_alloc_inode+0x18/0x34
 [<101be158>] alloc_inode+0x28/0x238
 [<101bf204>] new_inode+0x20/0xc0
 [<101a0eb8>] shmem_get_inode+0x34/0x1ac
 [<101a1be0>] shmem_symlink+0x60/0x260
 [<101b6034>] vfs_symlink+0x74/0xc8
 [<101b6118>] sys_symlinkat+0x90/0xfc
 [<101190c0>] syscall_exit+0x0/0x28

8bd9da98: redzone 1:0x0, redzone 2:0x9f911029d74e35b
Slab corruption: size-4096 start=8bd18000, len=4096
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
generic-usb 0003:046D:C001.0001: input,hidraw0: USB HID v1.00 Mouse [Logitech N48] on usb-0000:00:0e.2-1/inpu0
usb 1-1: New USB device found, idVendor=046d, idProduct=c001
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-1: Product: N48
usb 1-1: Manufacturer: Logitech


On 2.6.28-rc1 I saw e.g. this:
--------------------
usbcore: registered new interface driver usbhid
usbhid: v2.6:USB HID core driver
usb 1-1: new low speed USB device using ohci_hcd and address 2
usb 1-1: configuration #1 chosen from 1 choice
input: Logitech N48 as /class/input/input0
generic-usb 0003:046D:C001.0001: input,hidraw0: USB HID v1.00 Mouse 
[Logitech N48] on usb-0000:00:0e.2-1/inpu0
usb 1-1: New USB device found, idVendor=046d, idProduct=c001
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-1: Product: N48
usb 1-1: Manufacturer: Logitech
usb 1-2: new low speed USB device using ohci_hcd and address 3
usb 1-2: configuration #1 chosen from 1 choice
slab error in cache_alloc_debugcheck_after(): cache `size-512': double free, or memory outside object was oven
Backtrace:
   [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
   [<101a5cac>] kmem_cache_alloc+0x1a0/0x1e8
   [<1042e294>] hid_register_report+0x60/0xc4
   [<1042e5f8>] hid_add_field+0x40/0x1a4
   [<1042ec40>] hid_parser_main+0x94/0xc4

Helge
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From - Thu Nov 08 21:02:57 2018
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From: Jiri Kosina <jkosina@suse.cz>
Newsgroups: gmane.linux.kernel.input,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: 2.6.28-rc2: USB/INPUT: slab error in cache_alloc_debugcheck_after():
 double free?
Date: Fri, 31 Oct 2008 02:10:04 +0100 (CET)
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To: Helge Deller <deller@gmx.de>
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On Fri, 31 Oct 2008, Helge Deller wrote:

> I noticed various slab errors with complete kernel crashes with my USB keyboard/mouse on a 32bit parisc machine with both 2.6.28-rc1 and -rc2.
> Kernel 2.6.27 was still OK.
> 
> Linux kernel bootlog shows:
> ---------------
> ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> ohci_hcd 0000:00:0e.2: OHCI Host Controller
> ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
> ohci_hcd 0000:00:0e.2: irq 1, io mem 0xf2007000
> usb usb1: configuration #1 chosen from 1 choice
> hub 1-0:1.0: USB hub found
> hub 1-0:1.0: 3 ports detected
> usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
> usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> usb usb1: Product: OHCI Host Controller
> usb usb1: Manufacturer: Linux 2.6.28-rc2 ohci_hcd
> usb usb1: SerialNumber: 0000:00:0e.2
> uhci_hcd: USB Universal Host Controller Interface driver
> 
> 
> After sucessful bootup (without any USB devices attached)
> I get this when I insert a USB keyboard:
> ---------------
> usb 1-1: new low speed USB device using ohci_hcd and address 2
> usb 1-1: configuration #1 chosen from 1 choice
> input: SILITEK USB Keyboard and Mouse as /class/input/input0
> Slab corruption: size-4096 start=8dd9b000, len=4096
> 000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> generic-usb 0004:047B:0002.0001: input,hidraw0: USB HID v1.00 Keyboard [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-1/input0
> input: SILITEK USB Keyboard and Mouse as /class/input/input1
> generic-usb 0003:047B:0002.0002: input,hidraw1: USB HID v1.00 Mouse [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-1/input1
> usb 1-1: New USB device found, idVendor=047b, idProduct=0002
> usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> usb 1-1: Product: USB Keyboard and Mouse
> usb 1-1: Manufacturer: SILITEK
> 
> 
> Similiar when I insert a mouse:
> ------------------
> usb 1-1: new low speed USB device using ohci_hcd and address 2
> usb 1-1: configuration #1 chosen from 1 choice
> input: Logitech N48 as /class/input/input0
> Slab corruption: shmem_inode_cache start=8bd9daa0, len=640
> Redzone: 0x0/0x9f911029d74e35b.
> Last user: [<00000000>](0x0)
> 000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> Prev obj: start=8bd9d870, len=640
> Redzone: 0x6b6b6b6b6b6b6b6b/0x0.
> Last user: [<00000000>](0x0)
> 000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> slab error in cache_alloc_debugcheck_after(): cache `shmem_inode_cache': double free, or memory outside objecn
> Backtrace:
>  [<101a4e84>] cache_alloc_debugcheck_after+0xd8/0x200
>  [<101a540c>] kmem_cache_alloc+0x1a0/0x1e8
>  [<101a26e4>] shmem_alloc_inode+0x18/0x34
>  [<101be158>] alloc_inode+0x28/0x238
>  [<101bf204>] new_inode+0x20/0xc0
>  [<101a0eb8>] shmem_get_inode+0x34/0x1ac
>  [<101a1be0>] shmem_symlink+0x60/0x260
>  [<101b6034>] vfs_symlink+0x74/0xc8
>  [<101b6118>] sys_symlinkat+0x90/0xfc
>  [<101190c0>] syscall_exit+0x0/0x28
> 
> 8bd9da98: redzone 1:0x0, redzone 2:0x9f911029d74e35b
> Slab corruption: size-4096 start=8bd18000, len=4096
> 000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> generic-usb 0003:046D:C001.0001: input,hidraw0: USB HID v1.00 Mouse [Logitech N48] on usb-0000:00:0e.2-1/inpu0
> usb 1-1: New USB device found, idVendor=046d, idProduct=c001
> usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> usb 1-1: Product: N48
> usb 1-1: Manufacturer: Logitech
> 
> 
> On 2.6.28-rc1 I saw e.g. this:
> --------------------
> usbcore: registered new interface driver usbhid
> usbhid: v2.6:USB HID core driver
> usb 1-1: new low speed USB device using ohci_hcd and address 2
> usb 1-1: configuration #1 chosen from 1 choice
> input: Logitech N48 as /class/input/input0
> generic-usb 0003:046D:C001.0001: input,hidraw0: USB HID v1.00 Mouse 
> [Logitech N48] on usb-0000:00:0e.2-1/inpu0
> usb 1-1: New USB device found, idVendor=046d, idProduct=c001
> usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> usb 1-1: Product: N48
> usb 1-1: Manufacturer: Logitech
> usb 1-2: new low speed USB device using ohci_hcd and address 3
> usb 1-2: configuration #1 chosen from 1 choice
> slab error in cache_alloc_debugcheck_after(): cache `size-512': double free, or memory outside object was oven
> Backtrace:
>    [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
>    [<101a5cac>] kmem_cache_alloc+0x1a0/0x1e8
>    [<1042e294>] hid_register_report+0x60/0xc4
>    [<1042e5f8>] hid_add_field+0x40/0x1a4
>    [<1042ec40>] hid_parser_main+0x94/0xc4

Was Redzone 1 in this case also 0x0 please?

-- 
Jiri Kosina
SUSE Labs

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From - Thu Nov 08 21:02:57 2018
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From: Jiri Kosina <jkosina@suse.cz>
Newsgroups: gmane.linux.kernel.input,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: 2.6.28-rc2: USB/INPUT: slab error in cache_alloc_debugcheck_after():
 double free?
Date: Fri, 31 Oct 2008 03:09:25 +0100 (CET)
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	linux-parisc@vger.kernel.org, Jiri Slaby <jslaby@suse.cz>
To: Helge Deller <deller@gmx.de>
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On Fri, 31 Oct 2008, Helge Deller wrote:

> After sucessful bootup (without any USB devices attached)
> I get this when I insert a USB keyboard:
> ---------------
> usb 1-1: new low speed USB device using ohci_hcd and address 2
> usb 1-1: configuration #1 chosen from 1 choice
> input: SILITEK USB Keyboard and Mouse as /class/input/input0
> Slab corruption: size-4096 start=8dd9b000, len=4096
> 000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> generic-usb 0004:047B:0002.0001: input,hidraw0: USB HID v1.00 Keyboard [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-1/input0

Looks like something goes wrong somewhere around hid_connect() -- 
hidinput_connect() is called, then slab complains about corruption, and 
then the rest of the code in hid_connect() is executed, priting the 
'generic-usb ...' message.

I can't reproduce it here myself with CONFIG_DEBUG_SLAB=y. Could you 
please send me your config?

It is also quite strange that stacktrace is missing here for some 
reason.

> On 2.6.28-rc1 I saw e.g. this:
> --------------------
> usbcore: registered new interface driver usbhid
> usbhid: v2.6:USB HID core driver
> usb 1-1: new low speed USB device using ohci_hcd and address 2
> usb 1-1: configuration #1 chosen from 1 choice
> input: Logitech N48 as /class/input/input0
> generic-usb 0003:046D:C001.0001: input,hidraw0: USB HID v1.00 Mouse 
> [Logitech N48] on usb-0000:00:0e.2-1/inpu0
> usb 1-1: New USB device found, idVendor=046d, idProduct=c001
> usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> usb 1-1: Product: N48
> usb 1-1: Manufacturer: Logitech
> usb 1-2: new low speed USB device using ohci_hcd and address 3
> usb 1-2: configuration #1 chosen from 1 choice
> slab error in cache_alloc_debugcheck_after(): cache `size-512': double free, or memory outside object was oven
> Backtrace:
>    [<101a5724>] cache_alloc_debugcheck_after+0xd8/0x200
>    [<101a5cac>] kmem_cache_alloc+0x1a0/0x1e8
>    [<1042e294>] hid_register_report+0x60/0xc4
>    [<1042e5f8>] hid_add_field+0x40/0x1a4
>    [<1042ec40>] hid_parser_main+0x94/0xc4

This looks rather incomplete, backtrace starting at hid_parser_main is 
odd.

Also, this seems to happen for different slab cache than the previous 
corrutpion.

-- 
Jiri Kosina
SUSE Labs

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From - Thu Nov 08 21:02:57 2018
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From: Jeroen Roovers <jer@gentoo.org>
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Subject: Re: 2.6.28-rc2: USB/INPUT: slab error in
 cache_alloc_debugcheck_after(): double free?
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I am seeing the same USB problem but without the SLAB errors - [1] is
the Gentoo bug report. The kernel boots fine with both USB keyboard and
mouse detached.


[17179609.760000] usb 1-2: configuration #1 chosen from 1 choice
[17179609.860000] input: Kensington Kensington USB/PS2 Trackball as
/class/inpu1
[17179609.972000] Backtrace:
[17179609.972000]  [<101daa9c>] sysfs_find_dirent+0x34/0x50
[17179609.972000]  [<101daad8>] __sysfs_add_one+0x20/0xc0
[17179609.972000]  [<101dab8c>] sysfs_add_one+0x14/0x50
[17179609.972000]  [<101db250>] create_dir+0x64/0xcc
[17179609.972000]  [<101db2e4>] sysfs_create_dir+0x2c/0x5c
[17179609.972000]  [<102f2cd0>] kobject_add_internal+0xb8/0x1b0
[17179609.972000]  [<102f326c>] kobject_add+0x38/0x68
[17179609.972000]  [<1035b2b0>] device_add+0xdc/0x55c
[17179609.972000]  [<103d6930>] mousedev_create+0x17c/0x1f8
[17179609.972000]  [<103d7284>] mousedev_connect+0x48/0x138
[17179609.972000]  [<103d2b50>] input_attach_handler+0x6c/0xac
[17179609.972000]  [<103d5014>] input_register_device+0x1a4/0x250
[17179609.972000]  [<103dfe08>] hidinput_connect+0x308/0x3b40
[17179609.972000]  [<103de5d4>] hid_connect+0x22c/0x2c0
[17179609.972000]  [<103de740>] hid_device_probe+0xd8/0xfc
[17179609.972000]  [<1035db94>] driver_probe_device+0xa4/0x198
[17179609.972000]
[17179609.972000]
[17179609.972000] Kernel Fault: Code=26 regs=8f86d0c0 (Addr=00000000)
[17179609.972000]
[17179609.972000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[17179609.972000] PSW: 00000000000001001111111000001111 Not tainted
[17179609.972000] r00-03  0004fe0f 105a8e50 101daa9c 8ecef000
[17179609.972000] r04-07  8f8d4d70 fffffff4 8f296f60 8f86cf48
[17179609.972000] r08-11  8f297ac8 8ec37000 8f293e90 00000008
[17179609.972000] r12-15  00000006 00000001 00000002 00000003
[17179609.972000] r16-19  8ec37000 fffeffff fffeff70 00000073
[17179609.972000] r20-23  00000006 0000000f 000003e0 8f296f60
[17179609.972000] r24-27  101da714 8f8d4d70 00000000 105a8650
[17179609.972000] r28-31  8ecef000 156979c9 8f86d0c0 101a0274
[17179609.972000] sr00-03  00000000 00000000 00000000 0000000c
[17179609.972000] sr04-07  00000000 00000000 00000000 00000000
[17179609.972000]
[17179609.972000] IASQ: 00000000 00000000 IAOQ: 102f6a50 102f6a54
[17179609.972000]  IIR: 0f40101c    ISR: 00000000  IOR: 00000000
[17179609.972000]  CPU:        0   CR30: 8f86c000 CR31: 11111111
[17179609.972000]  ORIG_R28: 0000000f
[17179609.972000]  IAOQ[0]: strcmp+0x0/0x34
[17179609.972000]  IAOQ[1]: strcmp+0x4/0x34
[17179609.972000]  RP(r2): sysfs_find_dirent+0x34/0x50
[17179609.972000] Backtrace:
[17179609.972000]  [<101daa9c>] sysfs_find_dirent+0x34/0x50
[17179609.972000]  [<101daad8>] __sysfs_add_one+0x20/0xc0
[17179609.972000]  [<101dab8c>] sysfs_add_one+0x14/0x50
[17179609.972000]  [<101db250>] create_dir+0x64/0xcc
[17179609.972000]  [<101db2e4>] sysfs_create_dir+0x2c/0x5c
[17179609.972000]  [<102f2cd0>] kobject_add_internal+0xb8/0x1b0
[17179609.972000]  [<102f326c>] kobject_add+0x38/0x68
[17179609.972000]  [<1035b2b0>] device_add+0xdc/0x55c
[17179609.972000]  [<103d6930>] mousedev_create+0x17c/0x1f8
[17179609.972000]  [<103d7284>] mousedev_connect+0x48/0x138
[17179609.972000]  [<103d2b50>] input_attach_handler+0x6c/0xac
[17179609.972000]  [<103d5014>] input_register_device+0x1a4/0x250
[17179609.972000]  [<103dfe08>] hidinput_connect+0x308/0x3b40
[17179609.972000]  [<103de5d4>] hid_connect+0x22c/0x2c0
[17179609.972000]  [<103de740>] hid_device_probe+0xd8/0xfc
[17179609.972000]  [<1035db94>] driver_probe_device+0xa4/0x198
[17179609.972000]
[17179609.972000] Kernel panic - not syncing: Kernel Fault


Kind regards,
     JeR


[1] https://bugs.gentoo.org/show_bug.cgi?id=245001
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From - Thu Nov 08 21:02:57 2018
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Subject: Re: 2.6.28-rc2: USB/INPUT: slab error in cache_alloc_debugcheck_after():
 double free?
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On Fri, 31 Oct 2008, Jeroen Roovers wrote:

> I am seeing the same USB problem but without the SLAB errors - [1] is
> the Gentoo bug report. The kernel boots fine with both USB keyboard and
> mouse detached.

Could you please provide your config? I am still not able to reproduce it 
here. Thanks.

-- 
Jiri Kosina
SUSE Labs

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Subject: Re: 2.6.28-rc2: USB/INPUT: slab error in cache_alloc_debugcheck_after():
 double free?
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On Fri, 31 Oct 2008, Helge Deller wrote:

> I noticed various slab errors with complete kernel crashes with my USB 
> keyboard/mouse on a 32bit parisc machine with both 2.6.28-rc1 and -rc2. 
> Kernel 2.6.27 was still OK.
[ ... ]

On Fri, 31 Oct 2008, Jeroen Roovers wrote:

> I am seeing the same USB problem but without the SLAB errors - [1] is
> the Gentoo bug report. The kernel boots fine with both USB keyboard and
> mouse detached.
[ ... ]
> [17179609.972000] IASQ: 00000000 00000000 IAOQ: 102f6a50 102f6a54
> [17179609.972000]  IIR: 0f40101c    ISR: 00000000  IOR: 00000000
> [17179609.972000]  CPU:        0   CR30: 8f86c000 CR31: 11111111
> [17179609.972000]  ORIG_R28: 0000000f
> [17179609.972000]  IAOQ[0]: strcmp+0x0/0x34
> [17179609.972000]  IAOQ[1]: strcmp+0x4/0x34
> [17179609.972000]  RP(r2): sysfs_find_dirent+0x34/0x50
> [17179609.972000] Backtrace:
> [17179609.972000]  [<101daa9c>] sysfs_find_dirent+0x34/0x50
> [17179609.972000]  [<101daad8>] __sysfs_add_one+0x20/0xc0
> [17179609.972000]  [<101dab8c>] sysfs_add_one+0x14/0x50
> [17179609.972000]  [<101db250>] create_dir+0x64/0xcc
> [17179609.972000]  [<101db2e4>] sysfs_create_dir+0x2c/0x5c
> [17179609.972000]  [<102f2cd0>] kobject_add_internal+0xb8/0x1b0
> [17179609.972000]  [<102f326c>] kobject_add+0x38/0x68
> [17179609.972000]  [<1035b2b0>] device_add+0xdc/0x55c
> [17179609.972000]  [<103d6930>] mousedev_create+0x17c/0x1f8
> [17179609.972000]  [<103d7284>] mousedev_connect+0x48/0x138
> [17179609.972000]  [<103d2b50>] input_attach_handler+0x6c/0xac
> [17179609.972000]  [<103d5014>] input_register_device+0x1a4/0x250
> [17179609.972000]  [<103dfe08>] hidinput_connect+0x308/0x3b40
> [17179609.972000]  [<103de5d4>] hid_connect+0x22c/0x2c0
> [17179609.972000]  [<103de740>] hid_device_probe+0xd8/0xfc
> [17179609.972000]  [<1035db94>] driver_probe_device+0xa4/0x198

What architecture is this, please?

If I understand the dump correctly, it bugs because strcmp() in 
sysfs_find_dirent() got somehow NULL pointer.

I am not able to reproduce this locally and I can't see what is going 
wrong here. Could you please try the patch below and send the dmesg 
output? (beware, it will produce quite some output volume). This might 
help us understand a little bit better what string goes NULL where, or 
what exactly is happening.
Thanks.

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 82d3b79..e14fb5f 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -418,6 +418,9 @@ void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt,
  */
 int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
 {
+	printk(KERN_DEBUG "__sysfs_add_one\n");
+	printk(KERN_DEBUG "%s\n", acxt->parent_sd->s_name);
+	printk(KERN_DEBUG "%s\n", sd->s_name);
 	if (sysfs_find_dirent(acxt->parent_sd, sd->s_name))
 		return -EEXIST;
 

-- 
Jiri Kosina
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From - Thu Nov 08 21:02:57 2018
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From: Jeroen Roovers <jer@gentoo.org>
Newsgroups: gmane.linux.kernel.input,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: 2.6.28-rc2: USB/INPUT: slab error in
 cache_alloc_debugcheck_after(): double free?
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On Fri, 31 Oct 2008 12:55:08 +0100 (CET)
Jiri Kosina <jkosina@suse.cz> wrote:

> Could you please provide your config? I am still not able to
> reproduce it here. Thanks.

Added to the bug report[1]. The architecture is hppa (parisc).

[1] https://bugs.gentoo.org/show_bug.cgi?id=245001


Kind regards,
     JeR
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From: Jiri Kosina <jkosina@suse.cz>
Newsgroups: gmane.linux.kernel.input,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: 2.6.28-rc2: USB/INPUT: slab error in cache_alloc_debugcheck_after():
 double free?
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To: Jeroen Roovers <jer@gentoo.org>
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On Fri, 31 Oct 2008, Jeroen Roovers wrote:

> > Could you please provide your config? I am still not able to reproduce 
> > it here. Thanks.
> Added to the bug report[1]. The architecture is hppa (parisc).

Hmm, so we have just two reports of this corruption, and both of them come 
from PA-RISC systems. Noone else has reported this, and I haven't been 
able to reproduce it myself on x86.

On the other hand I don't seem to see any commit that went into 
arch/parisc between .27 and 28-rc1 which could possibly cause this...

-- 
Jiri Kosina
SUSE Labs
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From - Thu Nov 08 21:02:57 2018
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From: Jiri Slaby <jirislaby@gmail.com>
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Subject: Re: 2.6.28-rc2: USB/INPUT: slab error in cache_alloc_debugcheck_after():
 double free?
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On 10/31/2008 04:45 AM, Jeroen Roovers wrote:
> I am seeing the same USB problem but without the SLAB errors - [1] is
> the Gentoo bug report. The kernel boots fine with both USB keyboard and
> mouse detached.
> 
> 
> [17179609.760000] usb 1-2: configuration #1 chosen from 1 choice
> [17179609.860000] input: Kensington Kensington USB/PS2 Trackball as
> /class/inpu1
> [17179609.972000] Backtrace:

Could you boot with slub_debug kernel parameter?
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From - Thu Nov 08 21:02:58 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: remove dead BIO_VMERGE_BOUNDARY and
	BIO_VMERGE_MAX_SIZE definitions
Date: Sat, 1 Nov 2008 10:59:31 -0600
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To: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
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On Fri, Oct 24, 2008 at 02:41:01PM +0900, FUJITA Tomonori wrote:
> The block layer dropped the virtual merge feature
> (b8b3e16cfe6435d961f6aaebcfd52a1ff2a988c5). BIO_VMERGE_BOUNDARY and
> BIO_VMERGE_MAX_SIZE definitions are meaningless now.

Sweet!
I've never liked the fact that the block layer did this but recognize
it was useful to maximize the number of SG entries used for
each IO sent to the storage controller.

> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

Acked-by: Grant Grundler <grundler@parisc-linux.org>

thanks,
grant

> ---
>  arch/parisc/include/asm/io.h |    6 ------
>  arch/parisc/kernel/setup.c   |    5 -----
>  drivers/parisc/ccio-dma.c    |    2 --
>  drivers/parisc/sba_iommu.c   |    2 --
>  4 files changed, 0 insertions(+), 15 deletions(-)
> 
> diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
> index 55ddb18..b92efb3 100644
> --- a/arch/parisc/include/asm/io.h
> +++ b/arch/parisc/include/asm/io.h
> @@ -4,12 +4,6 @@
>  #include <linux/types.h>
>  #include <asm/pgtable.h>
>  
> -extern unsigned long parisc_vmerge_boundary;
> -extern unsigned long parisc_vmerge_max_size;
> -
> -#define BIO_VMERGE_BOUNDARY	parisc_vmerge_boundary
> -#define BIO_VMERGE_MAX_SIZE	parisc_vmerge_max_size
> -
>  #define virt_to_phys(a) ((unsigned long)__pa(a))
>  #define phys_to_virt(a) __va(a)
>  #define virt_to_bus virt_to_phys
> diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
> index 7d27853..8d8b024 100644
> --- a/arch/parisc/kernel/setup.c
> +++ b/arch/parisc/kernel/setup.c
> @@ -58,11 +58,6 @@ int parisc_bus_is_phys __read_mostly = 1;	/* Assume no IOMMU is present */
>  EXPORT_SYMBOL(parisc_bus_is_phys);
>  #endif
>  
> -/* This sets the vmerge boundary and size, it's here because it has to
> - * be available on all platforms (zero means no-virtual merging) */
> -unsigned long parisc_vmerge_boundary = 0;
> -unsigned long parisc_vmerge_max_size = 0;
> -
>  void __init setup_cmdline(char **cmdline_p)
>  {
>  	extern unsigned int boot_args[];
> diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
> index dcc1e99..62cc21d 100644
> --- a/drivers/parisc/ccio-dma.c
> +++ b/drivers/parisc/ccio-dma.c
> @@ -1578,8 +1578,6 @@ static int __init ccio_probe(struct parisc_device *dev)
>  
>  	ioc_count++;
>  
> -	parisc_vmerge_boundary = IOVP_SIZE;
> -	parisc_vmerge_max_size = BITS_PER_LONG * IOVP_SIZE;
>  	parisc_has_iommu();
>  	return 0;
>  }
> diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
> index bc73b96..bdc9a0a 100644
> --- a/drivers/parisc/sba_iommu.c
> +++ b/drivers/parisc/sba_iommu.c
> @@ -1979,8 +1979,6 @@ sba_driver_callback(struct parisc_device *dev)
>  	proc_create("sba_iommu-bitmap", 0, root, &sba_proc_bitmap_fops);
>  #endif
>  
> -	parisc_vmerge_boundary = IOVP_SIZE;
> -	parisc_vmerge_max_size = IOVP_SIZE * BITS_PER_LONG;
>  	parisc_has_iommu();
>  	return 0;
>  }
> -- 
> 1.5.4.2
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From - Thu Nov 08 21:02:58 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: 2.6.28-rc2: USB/INPUT: slab error in
	cache_alloc_debugcheck_after(): double free?
Date: Sat, 1 Nov 2008 11:56:52 -0600
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To: Jiri Kosina <jkosina@suse.cz>
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On Fri, Oct 31, 2008 at 04:27:48PM +0100, Jiri Kosina wrote:
> On Fri, 31 Oct 2008, Jeroen Roovers wrote:
> 
> > > Could you please provide your config? I am still not able to reproduce 
> > > it here. Thanks.
> > Added to the bug report[1]. The architecture is hppa (parisc).
> 
> Hmm, so we have just two reports of this corruption, and both of them come 
> from PA-RISC systems. Noone else has reported this, and I haven't been 
> able to reproduce it myself on x86.
> 
> On the other hand I don't seem to see any commit that went into 
> arch/parisc between .27 and 28-rc1 which could possibly cause this...

Maybe check drivers/parisc/?
Long shot but if it's easy to check...

Any chance this is a big endian vs little endian problem?
I've found at least one of those in the USB layer before.

grant
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From - Thu Nov 08 21:02:58 2018
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From: Christoph Hellwig <hch@lst.de>
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Subject: Re: [RFC] remove dead code from sys_parisc32.c
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Anyone wants to pick this one up?

On Sun, Aug 17, 2008 at 04:41:51AM +0200, Christoph Hellwig wrote:
> Unless I'm totally missing something get_fd_set32/set_fd_set32 are
> completely unused.
> 
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> 
> Index: linux-2.6/arch/parisc/kernel/sys_parisc32.c
> ===================================================================
> --- linux-2.6.orig/arch/parisc/kernel/sys_parisc32.c	2008-08-16 23:40:26.000000000 -0300
> +++ linux-2.6/arch/parisc/kernel/sys_parisc32.c	2008-08-16 23:40:46.000000000 -0300
> @@ -284,68 +284,6 @@ int cp_compat_stat(struct kstat *stat, s
>  	return err;
>  }
>  
> -/*** copied from mips64 ***/
> -/*
> - * Ooo, nasty.  We need here to frob 32-bit unsigned longs to
> - * 64-bit unsigned longs.
> - */
> -
> -static inline int
> -get_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
> -{
> -	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
> -	if (ufdset) {
> -		unsigned long odd;
> -
> -		if (!access_ok(VERIFY_WRITE, ufdset, n*sizeof(u32)))
> -			return -EFAULT;
> -
> -		odd = n & 1UL;
> -		n &= ~1UL;
> -		while (n) {
> -			unsigned long h, l;
> -			__get_user(l, ufdset);
> -			__get_user(h, ufdset+1);
> -			ufdset += 2;
> -			*fdset++ = h << 32 | l;
> -			n -= 2;
> -		}
> -		if (odd)
> -			__get_user(*fdset, ufdset);
> -	} else {
> -		/* Tricky, must clear full unsigned long in the
> -		 * kernel fdset at the end, this makes sure that
> -		 * actually happens.
> -		 */
> -		memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
> -	}
> -	return 0;
> -}
> -
> -static inline void
> -set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
> -{
> -	unsigned long odd;
> -	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
> -
> -	if (!ufdset)
> -		return;
> -
> -	odd = n & 1UL;
> -	n &= ~1UL;
> -	while (n) {
> -		unsigned long h, l;
> -		l = *fdset++;
> -		h = l >> 32;
> -		__put_user(l, ufdset);
> -		__put_user(h, ufdset+1);
> -		ufdset += 2;
> -		n -= 2;
> -	}
> -	if (odd)
> -		__put_user(*fdset, ufdset);
> -}
> -
>  struct msgbuf32 {
>      int mtype;
>      char mtext[1];
---end quoted text---
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From - Thu Nov 08 21:02:58 2018
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From: Kyle McMartin <kyle@infradead.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [RFC] remove dead code from sys_parisc32.c
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On Wed, Nov 05, 2008 at 03:08:10PM +0100, Christoph Hellwig wrote:
> Anyone wants to pick this one up?
> 
> On Sun, Aug 17, 2008 at 04:41:51AM +0200, Christoph Hellwig wrote:
> > Unless I'm totally missing something get_fd_set32/set_fd_set32 are
> > completely unused.
> > 

Heh, sorry. Applied.
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From - Thu Nov 08 21:02:58 2018
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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: Panic in multiple kernels: IA64 SBA IOMMU: Culprit commit on
 Mar 28, 2008
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Sorry for the delay.

CC'ed linux-parisc since the same problem could happen to parisc.

On Tue, 04 Nov 2008 10:23:58 +1100
Shehjar Tikoo <shehjart@cse.unsw.edu.au> wrote:

> I've been observing kernel panics for the past week on
> kernel versions 2.6.26, 2.6.27 but not on 2.6.24 and 2.6.25.
> 
> The panic message says:
> 
> arch/ia64/hp/common/sba_iommu.c: I/O MMU is out of mapping resources
> 
> Using git-bisect, I've zeroed in on the commit that introduced this.
> Please see the attached file for the commit.
> 
> The workload consists of 2 tests:
> 1. Single fio process writing a 1 TB file.
> 2. 15 fio processes writing 15GB files each.
> 
> The panic happens on both workloads. There is no stack trace after
> the above message.
> 
> Other info:
> System is HP RX6600(16Gb RAM, 16 processors w/ dual cores and HT)
> 20 SATA disks under software RAID0 with 6 TB capacity.
> Silicon Image 3124 controller.
> File system is XFS.
> 
> I'd much appreciate some help in fixing this because this panic has
> basically stalled my own work. I'd be willing to run more tests on my
> setup to test any patches that possibly fix this issue.

This patch modified the sba IOMMU driver to support LLDs' segment
boundary limits properly.

ATA hardware has poor segment boundary limit, 64KB. In addition, sba
IOMMU driver uses size-aligned allocation algorithm. It means that
it's difficult for the IOMMU driver to find an appropriate I/O address
space. I think that you hit the allocation failure due to this problem
(of course, it's possible that my change breaks the IOMMU driver but I
can't find a problem so far).

To make matters worse, sba IOMMU driver panic when the allocation
fails. IIRC, only IA64 and parisc IOMMU drivers panic by default in
the case of the allocation failure. I think that we need to change
them to handle the failure properly.

Can you try this? I've not fixed map_single failure yet but I think
that you hit the failure allocation in map_sg path.


diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index d98f0f4..8f44dc8 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -676,12 +676,19 @@ sba_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
 			spin_unlock_irqrestore(&ioc->saved_lock, flags);
 
 			pide = sba_search_bitmap(ioc, dev, pages_needed, 0);
-			if (unlikely(pide >= (ioc->res_size << 3)))
-				panic(__FILE__ ": I/O MMU @ %p is out of mapping resources\n",
-				      ioc->ioc_hpa);
+			if (unlikely(pide >= (ioc->res_size << 3))) {
+				printk(KERN_WARNING "%s: I/O MMU @ %p is"
+				       "out of mapping resources, %u %u %lx\n",
+				       __func__, ioc->ioc_hpa, ioc->res_size,
+				       pages_needed, dma_get_seg_boundary(dev));
+				return -1;
+			}
 #else
-			panic(__FILE__ ": I/O MMU @ %p is out of mapping resources\n",
-			      ioc->ioc_hpa);
+			printk(KERN_WARNING "%s: I/O MMU @ %p is"
+			       "out of mapping resources, %u %u %lx\n",
+			       __func__, ioc->ioc_hpa, ioc->res_size,
+			       pages_needed, dma_get_seg_boundary(dev));
+			return -1;
 #endif
 		}
 	}
@@ -962,6 +969,7 @@ sba_map_single_attrs(struct device *dev, void *addr, size_t size, int dir,
 #endif
 
 	pide = sba_alloc_range(ioc, dev, size);
+	BUG_ON(pide < 0);
 
 	iovp = (dma_addr_t) pide << iovp_shift;
 
@@ -1304,6 +1312,7 @@ sba_coalesce_chunks(struct ioc *ioc, struct device *dev,
 	unsigned long dma_offset, dma_len; /* start/len of DMA stream */
 	int n_mappings = 0;
 	unsigned int max_seg_size = dma_get_max_seg_size(dev);
+	int idx;
 
 	while (nents > 0) {
 		unsigned long vaddr = (unsigned long) sba_sg_address(startsg);
@@ -1402,9 +1411,13 @@ sba_coalesce_chunks(struct ioc *ioc, struct device *dev,
 		vcontig_sg->dma_length = vcontig_len;
 		dma_len = (dma_len + dma_offset + ~iovp_mask) & iovp_mask;
 		ASSERT(dma_len <= DMA_CHUNK_SIZE);
-		dma_sg->dma_address = (dma_addr_t) (PIDE_FLAG
-			| (sba_alloc_range(ioc, dev, dma_len) << iovp_shift)
-			| dma_offset);
+		idx = sba_alloc_range(ioc, dev, dma_len);
+		if (idx < 0) {
+			dma_sg->dma_length = 0;
+			return -1;
+		}
+		dma_sg->dma_address = (dma_addr_t)(PIDE_FLAG | (idx << iovp_shift)
+						   | dma_offset);
 		n_mappings++;
 	}
 
@@ -1476,6 +1489,10 @@ int sba_map_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents,
 	** Access to the virtual address is what forces a two pass algorithm.
 	*/
 	coalesced = sba_coalesce_chunks(ioc, dev, sglist, nents);
+	if (coalesced < 0) {
+		sba_unmap_sg_attrs(dev, sglist, nents, dir, attrs);
+		return 0;
+	}
 
 	/*
 	** Program the I/O Pdir

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From - Thu Nov 08 21:02:58 2018
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From: Shehjar Tikoo <shehjart@cse.unsw.edu.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: Panic in multiple kernels: IA64 SBA IOMMU: Culprit commit on
 Mar 28, 2008
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To: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
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FUJITA Tomonori wrote:
> Sorry for the delay.
> 
> CC'ed linux-parisc since the same problem could happen to parisc.
> 
> On Tue, 04 Nov 2008 10:23:58 +1100
> Shehjar Tikoo <shehjart@cse.unsw.edu.au> wrote:
> 
>> I've been observing kernel panics for the past week on
>> kernel versions 2.6.26, 2.6.27 but not on 2.6.24 and 2.6.25.
>>
>> The panic message says:
>>
>> arch/ia64/hp/common/sba_iommu.c: I/O MMU is out of mapping resources
>>
>> Using git-bisect, I've zeroed in on the commit that introduced this.
>> Please see the attached file for the commit.
>>
>> The workload consists of 2 tests:
>> 1. Single fio process writing a 1 TB file.
>> 2. 15 fio processes writing 15GB files each.
>>
>> The panic happens on both workloads. There is no stack trace after
>> the above message.
>>
>> Other info:
>> System is HP RX6600(16Gb RAM, 16 processors w/ dual cores and HT)
>> 20 SATA disks under software RAID0 with 6 TB capacity.
>> Silicon Image 3124 controller.
>> File system is XFS.
>>
>> I'd much appreciate some help in fixing this because this panic has
>> basically stalled my own work. I'd be willing to run more tests on my
>> setup to test any patches that possibly fix this issue.
> 
> This patch modified the sba IOMMU driver to support LLDs' segment
> boundary limits properly.
> 
> ATA hardware has poor segment boundary limit, 64KB. In addition, sba
> IOMMU driver uses size-aligned allocation algorithm. It means that
> it's difficult for the IOMMU driver to find an appropriate I/O address
> space. I think that you hit the allocation failure due to this problem
> (of course, it's possible that my change breaks the IOMMU driver but I
> can't find a problem so far).
> 
> To make matters worse, sba IOMMU driver panic when the allocation
> fails. IIRC, only IA64 and parisc IOMMU drivers panic by default in
> the case of the allocation failure. I think that we need to change
> them to handle the failure properly.
> 
> Can you try this? I've not fixed map_single failure yet but I think
> that you hit the failure allocation in map_sg path.
> 

On 2.6.27, this patch seems to prevent the panic from happening for
both the tests I had described earlier. Do you need more info to 
validate this? I will be running more tests with this patch over
the next few days, so we'll find out anyway.

Thanks
Shehjar

> 
> diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
> index d98f0f4..8f44dc8 100644
> --- a/arch/ia64/hp/common/sba_iommu.c
> +++ b/arch/ia64/hp/common/sba_iommu.c
> @@ -676,12 +676,19 @@ sba_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
>  			spin_unlock_irqrestore(&ioc->saved_lock, flags);
>  
>  			pide = sba_search_bitmap(ioc, dev, pages_needed, 0);
> -			if (unlikely(pide >= (ioc->res_size << 3)))
> -				panic(__FILE__ ": I/O MMU @ %p is out of mapping resources\n",
> -				      ioc->ioc_hpa);
> +			if (unlikely(pide >= (ioc->res_size << 3))) {
> +				printk(KERN_WARNING "%s: I/O MMU @ %p is"
> +				       "out of mapping resources, %u %u %lx\n",
> +				       __func__, ioc->ioc_hpa, ioc->res_size,
> +				       pages_needed, dma_get_seg_boundary(dev));
> +				return -1;
> +			}
>  #else
> -			panic(__FILE__ ": I/O MMU @ %p is out of mapping resources\n",
> -			      ioc->ioc_hpa);
> +			printk(KERN_WARNING "%s: I/O MMU @ %p is"
> +			       "out of mapping resources, %u %u %lx\n",
> +			       __func__, ioc->ioc_hpa, ioc->res_size,
> +			       pages_needed, dma_get_seg_boundary(dev));
> +			return -1;
>  #endif
>  		}
>  	}
> @@ -962,6 +969,7 @@ sba_map_single_attrs(struct device *dev, void *addr, size_t size, int dir,
>  #endif
>  
>  	pide = sba_alloc_range(ioc, dev, size);
> +	BUG_ON(pide < 0);
>  
>  	iovp = (dma_addr_t) pide << iovp_shift;
>  
> @@ -1304,6 +1312,7 @@ sba_coalesce_chunks(struct ioc *ioc, struct device *dev,
>  	unsigned long dma_offset, dma_len; /* start/len of DMA stream */
>  	int n_mappings = 0;
>  	unsigned int max_seg_size = dma_get_max_seg_size(dev);
> +	int idx;
>  
>  	while (nents > 0) {
>  		unsigned long vaddr = (unsigned long) sba_sg_address(startsg);
> @@ -1402,9 +1411,13 @@ sba_coalesce_chunks(struct ioc *ioc, struct device *dev,
>  		vcontig_sg->dma_length = vcontig_len;
>  		dma_len = (dma_len + dma_offset + ~iovp_mask) & iovp_mask;
>  		ASSERT(dma_len <= DMA_CHUNK_SIZE);
> -		dma_sg->dma_address = (dma_addr_t) (PIDE_FLAG
> -			| (sba_alloc_range(ioc, dev, dma_len) << iovp_shift)
> -			| dma_offset);
> +		idx = sba_alloc_range(ioc, dev, dma_len);
> +		if (idx < 0) {
> +			dma_sg->dma_length = 0;
> +			return -1;
> +		}
> +		dma_sg->dma_address = (dma_addr_t)(PIDE_FLAG | (idx << iovp_shift)
> +						   | dma_offset);
>  		n_mappings++;
>  	}
>  
> @@ -1476,6 +1489,10 @@ int sba_map_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents,
>  	** Access to the virtual address is what forces a two pass algorithm.
>  	*/
>  	coalesced = sba_coalesce_chunks(ioc, dev, sglist, nents);
> +	if (coalesced < 0) {
> +		sba_unmap_sg_attrs(dev, sglist, nents, dir, attrs);
> +		return 0;
> +	}
>  
>  	/*
>  	** Program the I/O Pdir

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From: Shehjar Tikoo <shehjart@cse.unsw.edu.au>
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Subject: Re: Panic in multiple kernels: IA64 SBA IOMMU: Culprit commit on
 Mar 28, 2008
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Luck, Tony wrote:
> Added Cc: linux-ia64 ... more likely to attract attention of HP
> ia64 experts there.
> 
>> arch/ia64/hp/common/sba_iommu.c: I/O MMU is out of mapping resources
> 
> Odd ... the code (back to the dawn of git time in 2.6.12-rc1) looks like
> 
>         panic(__FILE__ ": I/O MMU @ %p is out of mapping resources\n"
>                 ioc->ioc_hpa);
> 
> I wonder why you don't see the "@ HEXADDRESS"?

That was copy paste from memory. You're right. There is a hex address.
I've copied a full message at the end of the email.

> 
>> Using git-bisect, I've zeroed in on the commit that introduced this.
>> Please see the attached file for the commit.
> 
> Did you confirm that reverting this commit on a recent kernel
> fixes the problem (once in a while git bisect can point to
> the wrong commit ... it seems very likely that it got the
> right one here, but it is always good to check).  When I
> tried to use "patch -R" to revert this it got confused on
> the Kconfig file because the lines that were added were
> subsequently changed ... so you may need to revert that
> by hand ... the sba_iommu.c apparently reverted ok).


Yes, reverting this commit in 2.6.27 prevents kernel panic on both
workloads.

> 
>> Other info:
>> System is HP RX6600(16Gb RAM, 16 processors w/ dual cores and HT)
>> 20 SATA disks under software RAID0 with 6 TB capacity.
>> Silicon Image 3124 controller.
>> File system is XFS.
> 
> My HP test system is way too small to attempt to recreate
> this (just 2 cpus & 1 disk).  How long does each of your
> tests take to hit the problems ... a few minutes? Or hours?

The points at which panic occur are variable for both tests but
generally, I felt the panics were occurring nearer to the end of the
750G to 1TB writes.

> 
>> I'd much appreciate some help in fixing this because this panic has
>> basically stalled my own work. I'd be willing to run more tests on my
>> setup to test any patches that possibly fix this issue.
> 
> Adding some printk() before the panic might give a clue as to what
> is going wrong.  Either a bogus call is trying to allocate far
> too much space, or the bitmap is leaking, or we have a totally
> messed up "ioc" structure.
> 
> Printing "pages_needed" the address of "ioc" and some interesting
> fields from ioc (at least ioc->res_size) would help.  I assume
> the the return value from sba_search_bitmap() is ~0x0 ... but
> you should print "pide" just to be sure.


Heres some more info from a printk:

Kernel panic - not syncing: arch/ia64/hp/common/sba_iommu.c: I/O MMU @ 
c0000000fed01000 is out of mapping resources: pide: 
18446744073709551615, pages_needed: 5, iocres_size: 8192

> 
> -Tony

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From - Thu Nov 08 21:02:58 2018
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Subject: Re: Panic in multiple kernels: IA64 SBA IOMMU: Culprit commit on
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On Thu, 06 Nov 2008 14:06:09 +1100
Shehjar Tikoo <shehjart@cse.unsw.edu.au> wrote:

> FUJITA Tomonori wrote:
> > Sorry for the delay.
> > 
> > CC'ed linux-parisc since the same problem could happen to parisc.
> > 
> > On Tue, 04 Nov 2008 10:23:58 +1100
> > Shehjar Tikoo <shehjart@cse.unsw.edu.au> wrote:
> > 
> >> I've been observing kernel panics for the past week on
> >> kernel versions 2.6.26, 2.6.27 but not on 2.6.24 and 2.6.25.
> >>
> >> The panic message says:
> >>
> >> arch/ia64/hp/common/sba_iommu.c: I/O MMU is out of mapping resources
> >>
> >> Using git-bisect, I've zeroed in on the commit that introduced this.
> >> Please see the attached file for the commit.
> >>
> >> The workload consists of 2 tests:
> >> 1. Single fio process writing a 1 TB file.
> >> 2. 15 fio processes writing 15GB files each.
> >>
> >> The panic happens on both workloads. There is no stack trace after
> >> the above message.
> >>
> >> Other info:
> >> System is HP RX6600(16Gb RAM, 16 processors w/ dual cores and HT)
> >> 20 SATA disks under software RAID0 with 6 TB capacity.
> >> Silicon Image 3124 controller.
> >> File system is XFS.
> >>
> >> I'd much appreciate some help in fixing this because this panic has
> >> basically stalled my own work. I'd be willing to run more tests on my
> >> setup to test any patches that possibly fix this issue.
> > 
> > This patch modified the sba IOMMU driver to support LLDs' segment
> > boundary limits properly.
> > 
> > ATA hardware has poor segment boundary limit, 64KB. In addition, sba
> > IOMMU driver uses size-aligned allocation algorithm. It means that
> > it's difficult for the IOMMU driver to find an appropriate I/O address
> > space. I think that you hit the allocation failure due to this problem
> > (of course, it's possible that my change breaks the IOMMU driver but I
> > can't find a problem so far).
> > 
> > To make matters worse, sba IOMMU driver panic when the allocation
> > fails. IIRC, only IA64 and parisc IOMMU drivers panic by default in
> > the case of the allocation failure. I think that we need to change
> > them to handle the failure properly.
> > 
> > Can you try this? I've not fixed map_single failure yet but I think
> > that you hit the failure allocation in map_sg path.
> > 
> 
> On 2.6.27, this patch seems to prevent the panic from happening for
> both the tests I had described earlier.

Thanks!

> Do you need more info to 
> validate this? I will be running more tests with this patch over
> the next few days, so we'll find out anyway.

Can you check if data corruption doesn't happen during the tests?


Tony, changing the sba IOMMU driver to return an error instead of
panic in the case of allocation failure is fine with you?
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Subject: RE: Panic in multiple kernels: IA64 SBA IOMMU: Culprit commit on
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> Can you check if data corruption doesn't happen during the tests?

Very important!!!

> Tony, changing the sba IOMMU driver to return an error instead of
> panic in the case of allocation failure is fine with you?

This is fine ... but we do need to audit the callers to make
sure that they check for and handle this new error.

-Tony
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From: Domenico Andreoli <cavokz@gmail.com>
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Subject: [PATCH] fix build error on hppa SMP (was Re: Linux 2.6.28-rc4)
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Cc: linux-parisc@vger.kernel.org, Rusty Russell <rusty@rustcorp.com.au>
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On Sun, Nov 09, 2008 at 04:55:42PM -0800, Linus Torvalds wrote:
> 
> Rusty Russell (3):
>       cpumask: introduce new API, without changing anything
>       cpumask: new API, v2
>       cpumask: introduce new API, without changing anything, v3

Nothing to change here, go away! :)

---
From: Domenico Andreoli <cavok@dandreoli.com>
Date: Mon, 10 Nov 2008 16:31:07 +0100
Subject: [PATCH] fix build error on hppa SMP

Remove extern declaration of cpu_present_mask.

Fixes build error due to new cpumask API (2d3854a37e8b767a51aba38ed6d22817b0631e33).

Signed-off-by: Domenico Andreoli <cavok@dandreoli.com>
---
 arch/parisc/include/asm/smp.h |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/include/asm/smp.h b/arch/parisc/include/asm/smp.h
index 398cdba..409e698 100644
--- a/arch/parisc/include/asm/smp.h
+++ b/arch/parisc/include/asm/smp.h
@@ -44,8 +44,6 @@ extern void arch_send_call_function_ipi(cpumask_t mask);
  
 #define PROC_CHANGE_PENALTY	15		/* Schedule penalty */
 
-extern unsigned long cpu_present_mask;

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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: RE: Panic in multiple kernels: IA64 SBA IOMMU: Culprit commit on
 Mar 28, 2008
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On Fri, 7 Nov 2008 08:58:28 -0800
"Luck, Tony" <tony.luck@intel.com> wrote:

> > Tony, changing the sba IOMMU driver to return an error instead of
> > panic in the case of allocation failure is fine with you?
> 
> This is fine ... but we do need to audit the callers to make
> sure that they check for and handle this new error.

Well, this is the issue discussed in the past several times...

The most of SCSI drivers are fine; they can handle IOMMU mapping
failure properly or panic. But there are some network drivers that
don't even check the failure. Fixing these network drivers has been on
my todo list... But as I said before, we ignore this problem; only
swiotlb and SBA panic in the case of IOMMU mapping failure.
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] fix cpumask build breakage on parisc
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This commit:
	2d3854a37e8b767a51aba38ed6d22817b0631e33
	cpumask: introduce new API, without changing anything

introduced a build breakage on parisc.

This trivial patch fixes it.


Signed-off-by: Helge Deller <deller@gmx.de>
CC:	Rusty Russell <rusty@rustcorp.com.au>
CC:	akpm@linux-foundation.org
CC:	torvalds@linux-foundation.org
CC:	Kyle Mc Martin <kyle@hera.kernel.org>
	

--- a/arch/parisc/include/asm/smp.h
+++ b/arch/parisc/include/asm/smp.h
@@ -44,8 +44,6 @@ extern void arch_send_call_function_ipi(cpumask_t mask);
  
 #define PROC_CHANGE_PENALTY	15		/* Schedule penalty */
 
-extern unsigned long cpu_present_mask;

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From: Geert Uytterhoeven <geert@linux-m68k.org>
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Subject: [PATCH/resend] parisc: __kernel_time_t is always long
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__kernel_time_t is always long on PA-RISC, irrespective of CONFIG_64BIT,
hence move it out of the #ifdef CONFIG_64BIT / #else / #endif block.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 arch/parisc/include/asm/posix_types.h |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/arch/parisc/include/asm/posix_types.h
+++ b/arch/parisc/include/asm/posix_types.h
@@ -24,13 +24,12 @@ typedef int			__kernel_daddr_t;
 typedef unsigned long		__kernel_size_t;
 typedef long			__kernel_ssize_t;
 typedef long			__kernel_ptrdiff_t;
-typedef long			__kernel_time_t;
 #else
 typedef unsigned int		__kernel_size_t;
 typedef int			__kernel_ssize_t;
 typedef int			__kernel_ptrdiff_t;
-typedef long			__kernel_time_t;
 #endif
+typedef long			__kernel_time_t;
 typedef char *			__kernel_caddr_t;
 
 typedef unsigned short		__kernel_uid16_t;

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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Hi Kyle,

Today's linux-next build (parisc allmodconfig) failed like this:

In file included from drivers/serial/mux.c:38:
include/linux/serial_core.h: In function 'uart_handle_sysrq_char':
include/linux/serial_core.h:450: error: 'struct uart_port' has no member na=
med 'sysrq'
include/linux/serial_core.h:451: error: 'struct uart_port' has no member na=
med 'sysrq'
include/linux/serial_core.h:451: error: 'struct uart_port' has no member na=
med 'sysrq'
include/linux/serial_core.h:453: error: 'struct uart_port' has no member na=
med 'sysrq'
include/linux/serial_core.h:456: error: 'struct uart_port' has no member na=
med 'sysrq'
include/linux/serial_core.h:473: error: 'struct uart_port' has no member na=
med 'sysrq'
include/linux/serial_core.h:474: error: 'struct uart_port' has no member na=
med 'sysrq'
include/linux/serial_core.h:477: error: 'struct uart_port' has no member na=
med 'sysrq'

This is happening in mainline as well. In fact, this has been happening
back as far as I have results (Aug 27).  The sysrq element of struct
uart_port is dependent on CONFIG_SERIAL_CORE_CONSOLE while the references
failing above are dependent on SUPPORT_SYSRQ which is defined if
CONFIG_MAGIC_SYSRQ is defined in mux.c.

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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Subject: [PATCH, 2.6.28-rc5] unitialized return value in mm/mlock.c: __mlock_vma_pages_range()
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/835>

Fix an unitialized return value when compiling on parisc (with CONFIG_UNEVICTABLE_LRU=y):
	mm/mlock.c: In function `__mlock_vma_pages_range':
	mm/mlock.c:165: warning: `ret' might be used uninitialized in this function

Signed-off-by: Helge Deller <deller@gmx.de>

--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -162,7 +162,7 @@ static long __mlock_vma_pages_range(struct vm_area_struct *vma,
 	unsigned long addr = start;
 	struct page *pages[16]; /* 16 gives a reasonable batch */
 	int nr_pages = (end - start) / PAGE_SIZE;
-	int ret;
+	int ret = 0;
 	int gup_flags = 0;
 
 	VM_BUG_ON(start & ~PAGE_MASK);



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From: Linus Torvalds <torvalds@linux-foundation.org>
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Subject: Re: [PATCH, 2.6.28-rc5] unitialized return value in mm/mlock.c:
 __mlock_vma_pages_range()
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On Mon, 17 Nov 2008, Helge Deller wrote:
>
> Fix an unitialized return value when compiling on parisc (with CONFIG_UNEVICTABLE_LRU=y):
> 	mm/mlock.c: In function `__mlock_vma_pages_range':
> 	mm/mlock.c:165: warning: `ret' might be used uninitialized in this function

Looks valid.

Of course, nobody should ever call this with a range that could possibly 
be empty, so an equally valid approach would be to change the "while" loop 
to a "do while()", and that would generate better code. But I guess the 
simple unnecessary initialization is more defensive programming, in that 
if some other buggy caller does set things up with an empty range, it gets 
the right result.

Btw, exactly _because_ gcc warnings about uninitialized functions are 
sometimes bogus (ie due to gcc simply not being able to follow things like 
conditional initializations where the values are only used if they were 
initialized), I would ask that people comment on these kinds of issues 
when they send in patches. 

		Linus
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Subject: struct uart_port has no member named 'sysrq'   (was: linux-next: parisc build failure)
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/837>

On Sunday 16 November 2008, Stephen Rothwell wrote:
> Hi Kyle,
> 
> Today's linux-next build (parisc allmodconfig) failed like this:
> 
> In file included from drivers/serial/mux.c:38:
> include/linux/serial_core.h: In function 'uart_handle_sysrq_char':
> include/linux/serial_core.h:450: error: 'struct uart_port' has no member named 'sysrq'
> include/linux/serial_core.h:451: error: 'struct uart_port' has no member named 'sysrq'
> include/linux/serial_core.h:451: error: 'struct uart_port' has no member named 'sysrq'
> include/linux/serial_core.h:453: error: 'struct uart_port' has no member named 'sysrq'
> include/linux/serial_core.h:456: error: 'struct uart_port' has no member named 'sysrq'
> include/linux/serial_core.h:473: error: 'struct uart_port' has no member named 'sysrq'
> include/linux/serial_core.h:474: error: 'struct uart_port' has no member named 'sysrq'
> include/linux/serial_core.h:477: error: 'struct uart_port' has no member named 'sysrq'
> 
> This is happening in mainline as well. In fact, this has been happening
> back as far as I have results (Aug 27).  The sysrq element of struct
> uart_port is dependent on CONFIG_SERIAL_CORE_CONSOLE while the references
> failing above are dependent on SUPPORT_SYSRQ which is defined if
> CONFIG_MAGIC_SYSRQ is defined in mux.c.

I assume you don't have CONFIG_SERIAL_CORE_CONSOLE set in your config, which is probably why this build failure shows up.
Looking at other serial drivers, which all seem to have similiar coding like mux.c, I'm wondering that it only shows up on parisc.

Anyway, since I assume we can't make the sysrq element of struct uart_port depended on SUPPORT_SYSRQ (since it depends on each serial driver if it wants to support the sysrq feature and we need to keep the size of struct uart_port constant), I think we need to add an additional check for CONFIG_SERIAL_CORE_CONSOLE to where we already check for SUPPORT_SYSRQ. 
Proposed patch and RFC below.

-------

[RFC] [PATCH] check for SUPPORT_SYSRQ and CONFIG_SERIAL_CORE_CONSOLE before accessing the "sysrq" member of struct uart_port.

Serial drivers (like mux.c) can #define SUPPORT_SYSRQ to tell the core serial functions that they want to have SYSRQ-support built-in.
If SUPPORT_SYSRQ is defined, the functions uart_handle_sysrq_char() and uart_handle_break() in include/linux/serial_core.h unconditionally access the "sysrq" member of struct uart_port.
Since the "sysrq" member of struct uart_port is only compiled into the kernel if CONFIG_SERIAL_CORE_CONSOLE is defined, builds will break if
SUPPORT_SYSRQ is defined and CONFIG_SERIAL_CORE_CONSOLE is not defined.

This patch works around the problem by checking for SUPPORT_SYSRQ _and_ CONFIG_SERIAL_CORE_CONSOLE before accessing the "sysrq" member of struct uart_port.

Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 4e4f127..b9d79f1 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -446,7 +446,7 @@ int uart_resume_port(struct uart_driver *reg, struct uart_port *port);
 static inline int
 uart_handle_sysrq_char(struct uart_port *port, unsigned int ch)
 {
-#ifdef SUPPORT_SYSRQ
+#if defined(SUPPORT_SYSRQ) && defined(CONFIG_SERIAL_CORE_CONSOLE)
 	if (port->sysrq) {
 		if (ch && time_before(jiffies, port->sysrq)) {
 			handle_sysrq(ch, port->info ? port->info->port.tty : NULL);
@@ -458,9 +458,6 @@ uart_handle_sysrq_char(struct uart_port *port, unsigned int ch)
 #endif
 	return 0;
 }
-#ifndef SUPPORT_SYSRQ
-#define uart_handle_sysrq_char(port,ch) uart_handle_sysrq_char(port, 0)
-#endif
 
 /*
  * We do the SysRQ and SAK checking like this...
@@ -468,7 +465,7 @@ uart_handle_sysrq_char(struct uart_port *port, unsigned int ch)
 static inline int uart_handle_break(struct uart_port *port)
 {
 	struct uart_info *info = port->info;
-#ifdef SUPPORT_SYSRQ
+#if defined(SUPPORT_SYSRQ) && defined(CONFIG_SERIAL_CORE_CONSOLE)
 	if (port->cons && port->cons->index == port->line) {
 		if (!port->sysrq) {
 			port->sysrq = jiffies + HZ*5;
--
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Hello PA hackers,

I've tried various -rc candidates in the last few weeks, and sadly the 
parisc kernel is in pretty bad shape.

At the beginning I started to get problems only when I had USB 
keyboard/mouse attached to the PA machine. This lead to bugzilla 
http://bugzilla.kernel.org/show_bug.cgi?id=11913

Now, with -rc4 and -rc5 things got even worse.

Crashes happen often just directly at the beginning.
I'm sure it's not USB related any more, and I assume we have some 
strange mm-problem somewhere.
The kernel crashes at various places, and mostly a null-pointer is involved.

Right now I'm clueless...

Helge

PS: I'm happy that I just recently bought this one: 
http://www.gembird.cn/main.asp?mode=item&N=5915
------------

Here ist just one of the latest crashes (c3k, UP, CONFIG_SMP not set, 
2.6.28-rc5):
.....
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
PDC Stable Storage facility v0.30
Backtrace:
  [<1018b6a4>] __kmalloc+0xa4/0xec
  [<101718f4>] kstrdup+0x38/0x6c
  [<101d9090>] sysfs_new_dirent+0x54/0xf4
  [<101da0dc>] sysfs_do_create_link+0xcc/0x19c
  [<106cd644>] pdc_stable_init+0x1cc/0x2b4
  [<1010d998>] do_one_initcall+0x70/0x190
  [<106b9cf8>] do_initcalls+0x30/0x4c
  [<106b9df8>] kernel_init+0x64/0xac
  [<10113c5c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=26 regs=8f820500 (Addr=00000000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111000001110 Not tainted
r00-03  0004fe0e 00000000 1018b18c 8ed92000
r04-07  8f8068ec 8f8020c0 8f806800 ffffffff
r08-11  8f800180 8f8020e4 000000d0 1066aa60
r12-15  00000000 ffffffff 00000000 f0400004
r16-19  f0000884 f000017c f0000174 00000000
r20-23  00000000 00000000 8ed9201c 00000001
r24-27  00000000 00000000 00002000 10607260
r28-31  00000000 00000000 8f820500 1018ae38
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1018b1b0 1018b1b4
  IIR: 0e931280    ISR: 00000000  IOR: 00000000
  CPU:        0   CR30: 8f820000 CR31: ffffffff
  ORIG_R28: 8f80f888
  IAOQ[0]: cache_alloc_refill+0x10c/0x208
  IAOQ[1]: cache_alloc_refill+0x110/0x208
  RP(r2): cache_alloc_refill+0xe8/0x208
Backtrace:
  [<1018b6a4>] __kmalloc+0xa4/0xec
  [<101718f4>] kstrdup+0x38/0x6c
  [<101d9090>] sysfs_new_dirent+0x54/0xf4
  [<101da0dc>] sysfs_do_create_link+0xcc/0x19c
  [<106cd644>] pdc_stable_init+0x1cc/0x2b4
  [<1010d998>] do_one_initcall+0x70/0x190
  [<106b9cf8>] do_initcalls+0x30/0x4c
  [<106b9df8>] kernel_init+0x64/0xac
  [<10113c5c>] ret_from_kernel_thread+0x1c/0x24

Kernel panic - not syncing: Kernel Fault
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From - Thu Nov 08 21:02:59 2018
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From: "Thibaut VARENE" <T-Bone@parisc-linux.org>
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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On Tue, Nov 18, 2008 at 9:04 PM, Helge Deller <deller@gmx.de> wrote:

> Here ist just one of the latest crashes (c3k, UP, CONFIG_SMP not set,
> 2.6.28-rc5):
> .....
> SuperIO: ACPI at 0x7e0
> SuperIO: USB regulator enabled
> PDC Stable Storage facility v0.30
> Backtrace:
>  [<1018b6a4>] __kmalloc+0xa4/0xec
>  [<101718f4>] kstrdup+0x38/0x6c
>  [<101d9090>] sysfs_new_dirent+0x54/0xf4
>  [<101da0dc>] sysfs_do_create_link+0xcc/0x19c
>  [<106cd644>] pdc_stable_init+0x1cc/0x2b4

Wild guess since my baby's into this mess: somebody fucked
up^W^Wmodified some code in sysfs and didn't care enough about the
consequences.

Last time this code was touched it was Greg KH updating it for sysfs
changes, and the backtrace seems to point in that area again, hence
the guess...

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:02:59 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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On Tue, 2008-11-18 at 21:04 +0100, Helge Deller wrote:
> I've tried various -rc candidates in the last few weeks, and sadly the 
> parisc kernel is in pretty bad shape.
> 
> At the beginning I started to get problems only when I had USB 
> keyboard/mouse attached to the PA machine. This lead to bugzilla 
> http://bugzilla.kernel.org/show_bug.cgi?id=11913
> 
> Now, with -rc4 and -rc5 things got even worse.
> 
> Crashes happen often just directly at the beginning.
> I'm sure it's not USB related any more, and I assume we have some 
> strange mm-problem somewhere.

I'd be really dubious about that.  Our pa8900 ... the most mm unstable
system we have ... is running -rc5 just fine.  The only warning before
boot is the usual SMP one.

Linux ion 2.6.28-rc5 #20 SMP Tue Nov 18 18:16:35 PST 2008 parisc64

Why don't we compare configs?  This is mine for ion:

http://parisc-linux.org/~jejb/config-2.6.28-rc5-ion

I suspect we have some nasty interaction in the device driver subsystem
(ion, the pa8900, isn't running either USB or PDC stable).

James


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From - Thu Nov 08 21:02:59 2018
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From: Domenico Andreoli <cavokz@gmail.com>
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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On Wed, Nov 19, 2008 at 11:31:42AM +0900, James Bottomley wrote:
> On Tue, 2008-11-18 at 21:04 +0100, Helge Deller wrote:
> > I've tried various -rc candidates in the last few weeks, and sadly the 
> > parisc kernel is in pretty bad shape.
> > 
> > At the beginning I started to get problems only when I had USB 
> > keyboard/mouse attached to the PA machine. This lead to bugzilla 
> > http://bugzilla.kernel.org/show_bug.cgi?id=11913
> > 
> > Now, with -rc4 and -rc5 things got even worse.
> > 
> > Crashes happen often just directly at the beginning.
> > I'm sure it's not USB related any more, and I assume we have some 
> > strange mm-problem somewhere.
> 
> I'd be really dubious about that.  Our pa8900 ... the most mm unstable
> system we have ... is running -rc5 just fine.  The only warning before
> boot is the usual SMP one.

my j5600 is also running fine

> Linux ion 2.6.28-rc5 #20 SMP Tue Nov 18 18:16:35 PST 2008 parisc64

parisc64 SMP? have you all the cpu online?

> Why don't we compare configs?  This is mine for ion:
> 
> http://parisc-linux.org/~jejb/config-2.6.28-rc5-ion

https://mnl.crema.unimi.it/~cavok/config-2.6.28-rc5

ciao,
Domenico

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On Wed, 2008-11-19 at 10:13 +0100, Domenico Andreoli wrote:
> On Wed, Nov 19, 2008 at 11:31:42AM +0900, James Bottomley wrote:
> > On Tue, 2008-11-18 at 21:04 +0100, Helge Deller wrote:
> > > I've tried various -rc candidates in the last few weeks, and sadly the 
> > > parisc kernel is in pretty bad shape.
> > > 
> > > At the beginning I started to get problems only when I had USB 
> > > keyboard/mouse attached to the PA machine. This lead to bugzilla 
> > > http://bugzilla.kernel.org/show_bug.cgi?id=11913
> > > 
> > > Now, with -rc4 and -rc5 things got even worse.
> > > 
> > > Crashes happen often just directly at the beginning.
> > > I'm sure it's not USB related any more, and I assume we have some 
> > > strange mm-problem somewhere.
> > 
> > I'd be really dubious about that.  Our pa8900 ... the most mm unstable
> > system we have ... is running -rc5 just fine.  The only warning before
> > boot is the usual SMP one.
> 
> my j5600 is also running fine
> 
> > Linux ion 2.6.28-rc5 #20 SMP Tue Nov 18 18:16:35 PST 2008 parisc64
> 
> parisc64 SMP? have you all the cpu online?

Yes, all four (two sockets, two cores).

James


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> > > I'd be really dubious about that.  Our pa8900 ... the most mm unstable
> > > system we have ... is running -rc5 just fine.  The only warning before
> > > boot is the usual SMP one.
> > 
> > my j5600 is also running fine
> > 
> > > Linux ion 2.6.28-rc5 #20 SMP Tue Nov 18 18:16:35 PST 2008 parisc64
> > 
> > parisc64 SMP? have you all the cpu online?
> 
> Yes, all four (two sockets, two cores).

I haven't tried 2.6.28-rc5 but I have tried Kyle's last parisc tree.
While it boots on SMP PA8800 (Mako), it can't do a full GCC build
without a SEGV or some kind of file system issue.  There's an
occasional unexpected SEGV with 2.6.22.19, but otherwise it is stable.
It can successfully build GCC at -j4 most of the time.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:00 2018
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From: Helge Deller <deller@gmx.de>
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Thibaut VARENE wrote:
> On Tue, Nov 18, 2008 at 9:04 PM, Helge Deller <deller@gmx.de> wrote:
> 
>> Here ist just one of the latest crashes (c3k, UP, CONFIG_SMP not set,
>> 2.6.28-rc5):
>> .....
>> SuperIO: ACPI at 0x7e0
>> SuperIO: USB regulator enabled
>> PDC Stable Storage facility v0.30
>> Backtrace:
>>  [<1018b6a4>] __kmalloc+0xa4/0xec
>>  [<101718f4>] kstrdup+0x38/0x6c
>>  [<101d9090>] sysfs_new_dirent+0x54/0xf4
>>  [<101da0dc>] sysfs_do_create_link+0xcc/0x19c
>>  [<106cd644>] pdc_stable_init+0x1cc/0x2b4
> 
> Wild guess since my baby's into this mess: somebody fucked
> up^W^Wmodified some code in sysfs and didn't care enough about the
> consequences.

I'm not sure it's sysfs either.
This crash happens in sysfs, but other in memory, locking, ...
It's just random where and when it crashes.

Helge
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James Bottomley wrote:
>> Why don't we compare configs?  This is mine for ion:
>> http://parisc-linux.org/~jejb/config-2.6.28-rc5-ion

 > Domenico Andreoli wrote:
> https://mnl.crema.unimi.it/~cavok/config-2.6.28-rc5

Helge:
and here is mine (32bit(!), usually works on C3000, B160L, 715/64 and 
Tadpole PARISC laptop - similiar to B160L):
http://gsyprf10.external.hp.com/~deller/config.2.6.28-rc5

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This is a multi-part message in MIME format.
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Helge Deller wrote:
> James Bottomley wrote:
>>> Why don't we compare configs?  This is mine for ion:
>>> http://parisc-linux.org/~jejb/config-2.6.28-rc5-ion
> 
>  > Domenico Andreoli wrote:
>> https://mnl.crema.unimi.it/~cavok/config-2.6.28-rc5
> 
> Helge:
> and here is mine (32bit(!), usually works on C3000, B160L, 715/64 and 
> Tadpole PARISC laptop - similiar to B160L):
> http://gsyprf10.external.hp.com/~deller/config.2.6.28-rc5

James,
I tried your config on my c3k.
Only modifications I did are to enable built-in network and scsi, so 
that I'm able to tftpboot into the new kernel.
.config and config-diff-file are attached.

Here is what I got:
Freeing unused kernel memory:
Badness at kernel/smp.c:333...(well known)...
220k freed
eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.
Backtrace:
  [<000000004023c274>] proc_flush_task+0x4/0x3d8

Bad Address (null pointer deref?): Code=6 regs=00000000bf83cb58 
(Addr=0000045000000000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000011100001111 Tainted: G        W
r00-03  000000000804070f 0000000040492000 0000000040253bef 0000000000000000
r04-07  0000000040003000 0000000040670964 0000000000002168 000000000000085a
r08-11  000000004029d2dc 000000004029dac0 00000000402a060c 00000000400011a0
r12-15  0000000040000f00 00000000000000f0 00000000fb2cfa4c 000000004029db68
r16-19  000000004029d1ec 000000004029d66a 00000000406a008c 000000004025e6e0
r20-23  0000000000000000 0000045000000000 00000000ffffffff 0000000000000012
r24-27  0000000040003000 0000000000000000 0000000040001110 0000000000000002
r28-31  0000000040492000 0000000040001110 00000000fb2cfe40 0000000040253c27
sr00-03  0000000000000800 0000000000000800 0000000000000000 0000000000000800
sr04-07  0000000000000800 0000000000000800 0000000000000800 0000000000000800

IASQ: 0000000000000450 0000000000000450 IAOQ: 0000045000000000 
0000045000000004
  IIR: 43ffff80    ISR: 0000000000000800  IOR: 0000000040673375
  CPU:        0   CR30: 00000000bf854000 CR31: 0000000011111111
  ORIG_R28: fffffffffffff000
  IAOQ[0]: 0x45000000000
  IAOQ[1]: 0x45000000004
  RP(r2): ext3_free_data+0x194/0x1b8
Backtrace: 
                                        [<000000004023c274>] 
proc_flush_task+0x4/0x3d8

Kernel panic - not syncing: Bad Address (null pointer deref?)

----

Another boot showed:
Bad Address (null pointer deref?): Code=6 regs=00000000bf83cb58 
(Addr=0000045000000000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000011100001111 Tainted: G        W
r00-03  000000000804070f 0000000040490000 0000000040253bef 0000000000000000
r04-07  0000000040003000 0000000040670964 0000000000002168 000000000000085a
r08-11  000000004029d2dc 000000004029dac0 00000000402a060c 00000000400011a0
r12-15  0000000040000f00 00000000000000f0 00000000fb3e2a4c 000000004029db68
r16-19  000000004029d1ec 000000004029d66a 00000000406a008c 000000004025e6e0
r20-23  0000000000000000 0000045000000000 00000000ffffffff 0000000000000012
r24-27  0000000040003000 0000000000000000 0000000040001110 0000000000000002
r28-31  0000000040490000 0000000040001110 00000000fb3e2e40 0000000040253c27
sr00-03  0000000000000800 0000000000000800 0000000000000000 0000000000000800
sr04-07  0000000000000800 0000000000000800 0000000000000800 0000000000000800

IASQ: 0000000000000450 0000000000000450 IAOQ: 0000045000000000 
0000045000000004
  IIR: 43ffff80    ISR: 0000000000000800  IOR: 0000000040673375
  CPU:        0   CR30: 00000000bf854000 CR31: 00000000da1345e2
  ORIG_R28: fffffffffffff000
  IAOQ[0]: 0x45000000000
  IAOQ[1]: 0x45000000004
  RP(r2): ext3_direct_IO+0x224/0x298
Backtrace:
  [<000000004023c274>] proc_flush_task+0x4/0x3d8

---

After that I turned off fastboot on my c3k and let PDC check the memory.
PDC reported no problems. All 2GB are OK.

Helge

--------------090207000403060701000102
Content-Type: text/plain;
 name="config.2.6.28-rc5"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="config.2.6.28-rc5"

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.28-rc5
# Tue Nov 18 16:34:18 2008
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_IRQ_PER_CPU=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
# CONFIG_CGROUPS is not set
# CONFIG_GROUP_SCHED is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_RELAY is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_COMPAT_BRK=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
# CONFIG_MARKERS is not set
CONFIG_OPROFILE=m
CONFIG_HAVE_OPROFILE=y
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
CONFIG_BLOCK=y
# CONFIG_LBD is not set
# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_LSF is not set
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_DEFAULT_AS=y
# CONFIG_DEFAULT_DEADLINE is not set
# CONFIG_DEFAULT_CFQ is not set
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="anticipatory"
CONFIG_CLASSIC_RCU=y
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
CONFIG_PA7100LC=y
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
# CONFIG_PA8X00 is not set
CONFIG_PA11=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
# CONFIG_SMP is not set
CONFIG_ARCH_FLATMEM_ENABLE=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4096
# CONFIG_RESOURCES_64BIT is not set
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_UNEVICTABLE_LRU=y
CONFIG_HPUX=y

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
# CONFIG_HPPB is not set
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
# CONFIG_ISA is not set
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCI_LEGACY is not set
# CONFIG_PCI_DEBUG is not set
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
CONFIG_PCCARD=y
# CONFIG_PCMCIA_DEBUG is not set
CONFIG_PCMCIA=y
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_PCMCIA_IOCTL=y
CONFIG_CARDBUS=y

#
# PC-card bridges
#
CONFIG_YENTA=y
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
CONFIG_PD6729=y
CONFIG_I82092=y
CONFIG_PCCARD_NONSTATIC=y
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_PDC_CHASSIS is not set
# CONFIG_PDC_CHASSIS_WARN is not set
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_SOM=y
CONFIG_BINFMT_MISC=m
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
CONFIG_LLC=m
CONFIG_LLC2=m
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_SCHED is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_PHONET is not set
# CONFIG_WIRELESS is not set
CONFIG_WIRELESS_EXT=y
CONFIG_IEEE80211=m
CONFIG_IEEE80211_CRYPT_WEP=m
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=m
# CONFIG_PARPORT_SERIAL is not set
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_PC_PCMCIA=m
CONFIG_PARPORT_GSC=y
# CONFIG_PARPORT_AX88796 is not set
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
CONFIG_BLK_DEV=y
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=y
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=6144
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_C2PORT is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=y

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_IDE_GD=y
CONFIG_IDE_GD_ATA=y
# CONFIG_IDE_GD_ATAPI is not set
CONFIG_BLK_DEV_IDECS=y
# CONFIG_BLK_DEV_DELKIN is not set
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
CONFIG_BLK_DEV_IDESCSI=y
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=y
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_MVSAS is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_LE_ON_BE=y
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_NSP32 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
CONFIG_SCSI_DH=y
# CONFIG_SCSI_DH_RDAC is not set
# CONFIG_SCSI_DH_HP_SW is not set
# CONFIG_SCSI_DH_EMC is not set
# CONFIG_SCSI_DH_ALUA is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_SATA_PMP=y
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y
# CONFIG_SATA_SVW is not set
# CONFIG_ATA_PIIX is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SX4 is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PCMCIA is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RZ1000 is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set
# CONFIG_PATA_SCH is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
# CONFIG_MD_AUTODETECT is not set
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_MD_RAID10=y
CONFIG_MD_RAID456=y
CONFIG_MD_RAID5_RESHAPE=y
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_DEBUG is not set
# CONFIG_DM_CRYPT is not set
# CONFIG_DM_SNAPSHOT is not set
# CONFIG_DM_MIRROR is not set
# CONFIG_DM_ZERO is not set
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_UEVENT is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#

#
# Enable only one of the two stacks, unless you know what you are doing
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_BONDING=m
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
# CONFIG_PHYLIB is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
CONFIG_LASI_82596=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_SMC is not set
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
# CONFIG_TULIP_MMIO is not set
# CONFIG_TULIP_NAPI is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_PCMCIA_XIRCOM is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
# CONFIG_CS89x0 is not set
# CONFIG_EEPRO100 is not set
# CONFIG_E100 is not set
# CONFIG_LNE390 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_R6040 is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SC92031 is not set
# CONFIG_NET_POCKET is not set
# CONFIG_ATL2 is not set
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set

#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
CONFIG_WLAN_80211=y
# CONFIG_PCMCIA_RAYCS is not set
# CONFIG_IPW2100 is not set
# CONFIG_IPW2200 is not set
# CONFIG_LIBERTAS is not set
CONFIG_HERMES=m
# CONFIG_PLX_HERMES is not set
# CONFIG_TMD_HERMES is not set
# CONFIG_NORTEL_HERMES is not set
# CONFIG_PCI_HERMES is not set
CONFIG_PCMCIA_HERMES=m
# CONFIG_PCMCIA_SPECTRUM is not set
# CONFIG_ATMEL is not set
# CONFIG_AIRO_CS is not set
# CONFIG_PCMCIA_WL3501 is not set
# CONFIG_PRISM54 is not set
# CONFIG_USB_ZD1201 is not set
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_IWLWIFI_LEDS is not set
CONFIG_HOSTAP=m
CONFIG_HOSTAP_FIRMWARE=y
CONFIG_HOSTAP_FIRMWARE_NVRAM=y
# CONFIG_HOSTAP_PLX is not set
CONFIG_HOSTAP_PCI=m
CONFIG_HOSTAP_CS=m

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
CONFIG_NET_PCMCIA=y
# CONFIG_PCMCIA_3C589 is not set
# CONFIG_PCMCIA_3C574 is not set
# CONFIG_PCMCIA_FMVJ18X is not set
# CONFIG_PCMCIA_PCNET is not set
# CONFIG_PCMCIA_NMCLAN is not set
# CONFIG_PCMCIA_SMC91C92 is not set
# CONFIG_PCMCIA_XIRC2PS is not set
# CONFIG_PCMCIA_AXNET is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPP_FILTER is not set
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
# CONFIG_PPP_MPPE is not set
CONFIG_PPPOE=m
# CONFIG_PPPOL2TP is not set
# CONFIG_SLIP is not set
CONFIG_SLHC=m
# CONFIG_NET_FC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
CONFIG_INPUT_POLLDEV=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_HIL_OLD is not set
CONFIG_KEYBOARD_HIL=m
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_SERIAL=y
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_VSXXXAA is not set
CONFIG_MOUSE_HIL=m
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_ATI_REMOTE is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
CONFIG_INPUT_UINPUT=m
CONFIG_HP_SDC_RTC=m

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_PARKBD is not set
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=m
CONFIG_HIL_MLC=m
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_DEVKMEM=y
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_CS=y
CONFIG_SERIAL_8250_NR_UARTS=17
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_MUX=y
CONFIG_SERIAL_MUX_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=64
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
CONFIG_PPDEV=m
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# PCMCIA character devices
#
# CONFIG_SYNCLINK_CS is not set
# CONFIG_CARDMAN_4000 is not set
# CONFIG_CARDMAN_4040 is not set
# CONFIG_IPWIRELESS is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
# CONFIG_SPI is not set
# CONFIG_W1 is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_BATTERY_DS2760 is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_REGULATOR is not set

#
# Multimedia devices
#

#
# Multimedia core support
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
# CONFIG_VIDEO_MEDIA is not set

#
# Multimedia drivers
#
# CONFIG_DAB is not set

#
# Graphics support
#
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_BOTH_ENDIAN=y
# CONFIG_FB_BIG_ENDIAN is not set
# CONFIG_FB_LITTLE_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_STI=y
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
CONFIG_FB_VOODOO1=m
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=128
CONFIG_DUMMY_CONSOLE_ROWS=48
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_STI_CONSOLE=y
CONFIG_FONTS=y
# CONFIG_FONT_8x8 is not set
CONFIG_FONT_8x16=y
# CONFIG_FONT_6x11 is not set
# CONFIG_FONT_7x14 is not set
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
# CONFIG_FONT_MINI_4x6 is not set
# CONFIG_FONT_SUN8x16 is not set
# CONFIG_FONT_SUN12x22 is not set
# CONFIG_FONT_10x18 is not set
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_LOGO_PARISC_CLUT224=y
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_SEQUENCER=m
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
# CONFIG_SND_PORTMAN2X4 is not set
# CONFIG_SND_AC97_POWER_SAVE is not set
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
CONFIG_SND_USB=y
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_CAIAQ is not set
# CONFIG_SND_PCMCIA is not set
CONFIG_SND_GSC=y
CONFIG_SND_HARMONY=m
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HID_DEBUG is not set
CONFIG_HIDRAW=y

#
# USB Input Devices
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set

#
# Special HID drivers
#
# CONFIG_HID_COMPAT is not set
CONFIG_HID_A4TECH=y
CONFIG_HID_APPLE=y
CONFIG_HID_BELKIN=y
CONFIG_HID_BRIGHT=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
CONFIG_HID_CYPRESS=y
CONFIG_HID_DELL=y
CONFIG_HID_EZKEY=y
CONFIG_HID_GYRATION=y
CONFIG_HID_LOGITECH=y
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
CONFIG_HID_PANTHERLORD=y
# CONFIG_PANTHERLORD_FF is not set
CONFIG_HID_PETALYNX=y
CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
CONFIG_HID_SUNPLUS=y
# CONFIG_THRUSTMASTER_FF is not set
# CONFIG_ZEROPLUS_FF is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_DEVICE_CLASS is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
CONFIG_USB_MON=y
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_EHCI_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_WHCI_HCD is not set
# CONFIG_USB_HWA_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may also be needed;
#

#
# see USB_STORAGE Help for more information
#
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_BERRY_CHARGE is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_PHIDGET is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_VST is not set
# CONFIG_USB_GADGET is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# LED drivers
#

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_IDE_DISK=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_PARISC=y
CONFIG_DMADEVICES=y

#
# DMA Devices
#
CONFIG_AUXDISPLAY=y
# CONFIG_KS0108 is not set
# CONFIG_UIO is not set
# CONFIG_STAGING is not set
CONFIG_STAGING_EXCLUDE_BUILD=y

#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
# CONFIG_EXT4_FS is not set
CONFIG_JBD=y
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_FILE_LOCKING=y
# CONFIG_XFS_FS is not set
# CONFIG_OCFS2_FS is not set
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
CONFIG_AUTOFS_FS=y
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
# CONFIG_MSDOS_FS is not set
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
# CONFIG_NFS_V4 is not set
CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V3_ACL is not set
CONFIG_NFSD_V4=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
# CONFIG_SUNRPC_REGISTER_V4 is not set
CONFIG_RPCSEC_GSS_KRB5=y
CONFIG_RPCSEC_GSS_SPKM3=m
CONFIG_SMB_FS=m
CONFIG_SMB_NLS_DEFAULT=y
CONFIG_SMB_NLS_REMOTE="cp437"
CONFIG_CIFS=m
# CONFIG_CIFS_STATS is not set
CONFIG_CIFS_WEAK_PW_HASH=y
# CONFIG_CIFS_UPCALL is not set
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_EXPERIMENTAL is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=y
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=y
# CONFIG_DLM is not set

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
CONFIG_UNUSED_SYMBOLS=y
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_DETECT_SOFTLOCKUP=y
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=1
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_PI_LIST=y
CONFIG_RT_MUTEX_TESTER=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y

#
# Tracers
#
# CONFIG_SCHED_TRACER is not set
# CONFIG_CONTEXT_SWITCH_TRACER is not set
# CONFIG_BOOT_TRACER is not set
CONFIG_DYNAMIC_PRINTK_DEBUG=y
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_RODATA is not set

#
# Security options
#
CONFIG_KEYS=y
CONFIG_KEYS_DEBUG_PROC_KEYS=y
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_SECURITY_FILE_CAPABILITIES=y
CONFIG_XOR_BLOCKS=y
CONFIG_ASYNC_CORE=y
CONFIG_ASYNC_MEMCPY=y
CONFIG_ASYNC_XOR=y
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
# CONFIG_CRYPTO_FIPS is not set
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_MANAGER=y
# CONFIG_CRYPTO_GF128MUL is not set
CONFIG_CRYPTO_NULL=m
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
# CONFIG_CRYPTO_CAMELLIA is not set
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_FCRYPT is not set
CONFIG_CRYPTO_KHAZAD=m
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_HIFN_795X is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_CRC_CCITT=m
# CONFIG_CRC16 is not set
CONFIG_CRC_T10DIF=y
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y

--------------090207000403060701000102
Content-Type: text/x-patch;
 name="config.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="config.diff"

--- config-2.6.28-rc5-ion	2008-11-19 03:20:23.000000000 +0100
+++ .config	2008-11-19 18:01:22.000000000 +0100
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
 # Linux kernel version: 2.6.28-rc5
-# Tue Nov 18 16:29:29 2008
+# Wed Nov 19 18:01:22 2008
 #
 CONFIG_PARISC=y
 CONFIG_MMU=y
@@ -483,7 +483,7 @@
 # SCSI device support
 #
 CONFIG_RAID_ATTRS=m
-CONFIG_SCSI=m
+CONFIG_SCSI=y
 CONFIG_SCSI_DMA=y
 # CONFIG_SCSI_TGT is not set
 CONFIG_SCSI_NETLINK=y
@@ -492,12 +492,12 @@
 #
 # SCSI support type (disk, tape, CD-ROM)
 #
-CONFIG_BLK_DEV_SD=m
+CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=m
 # CONFIG_CHR_DEV_OSST is not set
-CONFIG_BLK_DEV_SR=m
+CONFIG_BLK_DEV_SR=y
 # CONFIG_BLK_DEV_SR_VENDOR is not set
-CONFIG_CHR_DEV_SG=m
+CONFIG_CHR_DEV_SG=y
 CONFIG_CHR_DEV_SCH=m
 CONFIG_SCSI_ENCLOSURE=m
 
@@ -513,11 +513,12 @@
 #
 # SCSI Transports
 #
-CONFIG_SCSI_SPI_ATTRS=m
+CONFIG_SCSI_SPI_ATTRS=y
 CONFIG_SCSI_FC_ATTRS=m
 CONFIG_SCSI_ISCSI_ATTRS=m
 CONFIG_SCSI_SAS_ATTRS=m
 CONFIG_SCSI_SAS_LIBSAS=m
+# CONFIG_SCSI_SAS_ATA is not set
 CONFIG_SCSI_SAS_HOST_SMP=y
 CONFIG_SCSI_SAS_LIBSAS_DEBUG=y
 # CONFIG_SCSI_SRP_ATTRS is not set
@@ -561,15 +562,16 @@
 # CONFIG_SCSI_IZIP_EPP16 is not set
 # CONFIG_SCSI_IZIP_SLOW_CTR is not set
 CONFIG_SCSI_MVSAS=m
-CONFIG_SCSI_LASI700=m
+CONFIG_SCSI_LASI700=y
 CONFIG_53C700_LE_ON_BE=y
 CONFIG_SCSI_STEX=m
-CONFIG_SCSI_SYM53C8XX_2=m
+CONFIG_SCSI_SYM53C8XX_2=y
 CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
 CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
 CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
 CONFIG_SCSI_SYM53C8XX_MMIO=y
-CONFIG_SCSI_ZALON=m
+# CONFIG_SCSI_IPR is not set
+CONFIG_SCSI_ZALON=y
 CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
 CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
 CONFIG_SCSI_NCR53C8XX_SYNC=20
@@ -586,7 +588,65 @@
 CONFIG_SCSI_DH_HP_SW=m
 CONFIG_SCSI_DH_EMC=m
 CONFIG_SCSI_DH_ALUA=m
-# CONFIG_ATA is not set
+CONFIG_ATA=y
+# CONFIG_ATA_NONSTANDARD is not set
+# CONFIG_SATA_PMP is not set
+# CONFIG_SATA_AHCI is not set
+# CONFIG_SATA_SIL24 is not set
+CONFIG_ATA_SFF=y
+# CONFIG_SATA_SVW is not set
+# CONFIG_ATA_PIIX is not set
+# CONFIG_SATA_MV is not set
+# CONFIG_SATA_NV is not set
+# CONFIG_PDC_ADMA is not set
+# CONFIG_SATA_QSTOR is not set
+# CONFIG_SATA_PROMISE is not set
+# CONFIG_SATA_SX4 is not set
+# CONFIG_SATA_SIL is not set
+# CONFIG_SATA_SIS is not set
+# CONFIG_SATA_ULI is not set
+# CONFIG_SATA_VIA is not set
+# CONFIG_SATA_VITESSE is not set
+# CONFIG_SATA_INIC162X is not set
+# CONFIG_PATA_ALI is not set
+# CONFIG_PATA_AMD is not set
+# CONFIG_PATA_ARTOP is not set
+# CONFIG_PATA_ATIIXP is not set
+# CONFIG_PATA_CMD640_PCI is not set
+# CONFIG_PATA_CMD64X is not set
+# CONFIG_PATA_CS5520 is not set
+# CONFIG_PATA_CS5530 is not set
+# CONFIG_PATA_CYPRESS is not set
+# CONFIG_PATA_EFAR is not set
+# CONFIG_ATA_GENERIC is not set
+# CONFIG_PATA_HPT366 is not set
+# CONFIG_PATA_HPT37X is not set
+# CONFIG_PATA_HPT3X2N is not set
+# CONFIG_PATA_HPT3X3 is not set
+# CONFIG_PATA_IT821X is not set
+# CONFIG_PATA_IT8213 is not set
+# CONFIG_PATA_JMICRON is not set
+# CONFIG_PATA_TRIFLEX is not set
+# CONFIG_PATA_MARVELL is not set
+# CONFIG_PATA_MPIIX is not set
+# CONFIG_PATA_OLDPIIX is not set
+# CONFIG_PATA_NETCELL is not set
+# CONFIG_PATA_NINJA32 is not set
+# CONFIG_PATA_NS87410 is not set
+# CONFIG_PATA_NS87415 is not set
+# CONFIG_PATA_OPTI is not set
+# CONFIG_PATA_OPTIDMA is not set
+# CONFIG_PATA_PDC_OLD is not set
+# CONFIG_PATA_RADISYS is not set
+# CONFIG_PATA_RZ1000 is not set
+# CONFIG_PATA_SC1200 is not set
+# CONFIG_PATA_SERVERWORKS is not set
+# CONFIG_PATA_PDC2027X is not set
+# CONFIG_PATA_SIL680 is not set
+# CONFIG_PATA_SIS is not set
+# CONFIG_PATA_VIA is not set
+# CONFIG_PATA_WINBOND is not set
+# CONFIG_PATA_SCH is not set
 CONFIG_MD=y
 CONFIG_BLK_DEV_MD=m
 CONFIG_MD_LINEAR=m
@@ -648,8 +708,8 @@
 # CONFIG_REALTEK_PHY is not set
 # CONFIG_MDIO_BITBANG is not set
 CONFIG_NET_ETHERNET=y
-CONFIG_MII=m
-CONFIG_LASI_82596=m
+CONFIG_MII=y
+CONFIG_LASI_82596=y
 CONFIG_HAPPYMEAL=m
 # CONFIG_SUNGEM is not set
 CONFIG_CASSINI=m
@@ -657,12 +717,12 @@
 CONFIG_VORTEX=m
 # CONFIG_TYPHOON is not set
 CONFIG_NET_TULIP=y
-CONFIG_DE2104X=m
-CONFIG_TULIP=m
+CONFIG_DE2104X=y
+CONFIG_TULIP=y
 # CONFIG_TULIP_MWI is not set
 CONFIG_TULIP_MMIO=y
 # CONFIG_TULIP_NAPI is not set
-CONFIG_DE4X5=m
+CONFIG_DE4X5=y
 CONFIG_WINBOND_840=m
 # CONFIG_DM9102 is not set
 CONFIG_ULI526X=m
@@ -675,7 +735,7 @@
 # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
 # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
 CONFIG_NET_PCI=y
-CONFIG_PCNET32=m
+CONFIG_PCNET32=y
 # CONFIG_AMD8111_ETH is not set
 # CONFIG_ADAPTEC_STARFIRE is not set
 CONFIG_B44=m
@@ -905,8 +965,6 @@
 # CONFIG_PPDEV is not set
 # CONFIG_IPMI_HANDLER is not set
 CONFIG_HW_RANDOM=y
-CONFIG_GEN_RTC=y
-# CONFIG_GEN_RTC_X is not set
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set
 CONFIG_RAW_DRIVER=m
@@ -1433,6 +1491,7 @@
 # CONFIG_NEW_LEDS is not set
 # CONFIG_ACCESSIBILITY is not set
 # CONFIG_INFINIBAND is not set
+CONFIG_RTC_LIB=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_HCTOSYS=y
 CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
@@ -1495,23 +1554,26 @@
 #
 # File systems
 #
-CONFIG_EXT2_FS=m
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-CONFIG_EXT3_FS=m
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT2_FS_XIP=y
+CONFIG_EXT3_FS=y
 CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
+CONFIG_EXT3_FS_POSIX_ACL=y
+CONFIG_EXT3_FS_SECURITY=y
 CONFIG_EXT4_FS=m
 # CONFIG_EXT4DEV_COMPAT is not set
 CONFIG_EXT4_FS_XATTR=y
 # CONFIG_EXT4_FS_POSIX_ACL is not set
 # CONFIG_EXT4_FS_SECURITY is not set
-CONFIG_JBD=m
-# CONFIG_JBD_DEBUG is not set
+CONFIG_FS_XIP=y
+CONFIG_JBD=y
+CONFIG_JBD_DEBUG=y
 CONFIG_JBD2=m
-# CONFIG_JBD2_DEBUG is not set
-CONFIG_FS_MBCACHE=m
+CONFIG_JBD2_DEBUG=y
+CONFIG_FS_MBCACHE=y
 CONFIG_REISERFS_FS=m
 # CONFIG_REISERFS_CHECK is not set
 CONFIG_REISERFS_PROC_INFO=y
@@ -1620,11 +1682,11 @@
 CONFIG_MSDOS_PARTITION=y
 CONFIG_NLS=y
 CONFIG_NLS_DEFAULT="iso8859-1"
-CONFIG_NLS_CODEPAGE_437=m
+CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_CODEPAGE_737=m
 CONFIG_NLS_CODEPAGE_775=m
-CONFIG_NLS_CODEPAGE_850=m
-CONFIG_NLS_CODEPAGE_852=m
+CONFIG_NLS_CODEPAGE_850=y
+CONFIG_NLS_CODEPAGE_852=y
 CONFIG_NLS_CODEPAGE_855=m
 CONFIG_NLS_CODEPAGE_857=m
 CONFIG_NLS_CODEPAGE_860=m
@@ -1641,11 +1703,11 @@
 CONFIG_NLS_CODEPAGE_949=m
 CONFIG_NLS_CODEPAGE_874=m
 CONFIG_NLS_ISO8859_8=m
-CONFIG_NLS_CODEPAGE_1250=m
-CONFIG_NLS_CODEPAGE_1251=m
-CONFIG_NLS_ASCII=m
-CONFIG_NLS_ISO8859_1=m
-CONFIG_NLS_ISO8859_2=m
+CONFIG_NLS_CODEPAGE_1250=y
+CONFIG_NLS_CODEPAGE_1251=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_2=y
 CONFIG_NLS_ISO8859_3=m
 CONFIG_NLS_ISO8859_4=m
 CONFIG_NLS_ISO8859_5=m
@@ -1654,10 +1716,10 @@
 CONFIG_NLS_ISO8859_9=m
 CONFIG_NLS_ISO8859_13=m
 CONFIG_NLS_ISO8859_14=m
-CONFIG_NLS_ISO8859_15=m
+CONFIG_NLS_ISO8859_15=y
 CONFIG_NLS_KOI8_R=m
 CONFIG_NLS_KOI8_U=m
-CONFIG_NLS_UTF8=m
+CONFIG_NLS_UTF8=y
 # CONFIG_DLM is not set
 
 #
@@ -1821,7 +1883,7 @@
 CONFIG_BITREVERSE=y
 CONFIG_CRC_CCITT=m
 CONFIG_CRC16=m
-CONFIG_CRC_T10DIF=m
+CONFIG_CRC_T10DIF=y
 # CONFIG_CRC_ITU_T is not set
 CONFIG_CRC32=y
 # CONFIG_CRC7 is not set

--------------090207000403060701000102--
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From - Thu Nov 08 21:03:00 2018
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X-Mozilla-Keys:                                                                                 
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
Date: Wed, 19 Nov 2008 22:51:03 -0500 (EST)
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> Why don't we compare configs?  This is mine for ion:
> 
> http://parisc-linux.org/~jejb/config-2.6.28-rc5-ion
> 
> I suspect we have some nasty interaction in the device driver subsystem
> (ion, the pa8900, isn't running either USB or PDC stable).

I tried this on what was ior:

HARD Booted.
palo ipl 1.14 root@penalosa Wed Oct  8 15:04:37 UTC 2008

Partition Start(MB) End(MB) Id Type
1               1     101   f0 Palo
2             102    1082   82 swap
3            1083   34726   83 ext2

PALO(F0) partition contains:
PALO is formatted EXT2/3
Command line for kernel: 'root=/dev/sda3 panic=5 console=ttyS1 palo_kernel=1/vmlinux'
Selected kernel: /vmlinux from partition 1

...

VFS: Cannot open root device "sda3" or unknown-block(0,0)
Please append a correct "root=" boot option; here are the available partitions:
DEBUG_BLOCK_EXT_DEVT is enabled, you need to specify explicit textual name for "root=" boot option.
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
Rebooting in 5 seconds..

What's missing?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:00 2018
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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Helge Deller wrote:
> James Bottomley wrote:
>>> Why don't we compare configs?  This is mine for ion:
>>> http://parisc-linux.org/~jejb/config-2.6.28-rc5-ion
> 
>  > Domenico Andreoli wrote:
>> https://mnl.crema.unimi.it/~cavok/config-2.6.28-rc5
> 
> Helge:
> and here is mine (32bit(!), usually works on C3000, B160L, 715/64 and 
> Tadpole PARISC laptop - similiar to B160L):
> http://gsyprf10.external.hp.com/~deller/config.2.6.28-rc5

I don't want to flood the mailing list with my problem.

But I continued with testing:
1) I modified James's ion-config for netbooting and built it. Crashed 
same way as Dave just reported in another mail (DEBUG_BLOCK_EXT_DEVT is 
enabled, you need to specify explicit textual name for "root=" boot option.)

2) To avoid possible cross-compiler bugs I built James's ion-config 
(with no modifications at all!) on the c3k natively. It booted yesterday 
nicely without any problems from local disk. Today, I booted the same 
kernel, again with no modifications or changes at all, just the same 
kernel which already was on the disk, and it brought up a Slab corruption:


HARD Booted.
palo ipl 1.14 root@penalosa Wed Oct  8 15:04:37 UTC 2008

Partition Start(MB) End(MB) Id Type
1               1     257   82 swap
2             258     278   f0 Palo
3             279    2048   83 ext2
4            2049    8678   83 ext2

PALO(F0) partition contains:
     0/vmlinux32 14996734 bytes @ 0x10140000
     0/ramdisk 6264632 bytes @ 0x10f8d4fe

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102 
palo_kernel=3/boot/vmlinux'
Selected kernel: /boot/vmlinux from partition 3
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 5140480 mediaptr 0x1000
Segment 1 load 0063c000 size 381320 mediaptr 0x4e8000
Segment 2 load 0069c000 size 215488 mediaptr 0x546000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.28-rc5 (root@c3000) (gcc version 4.1.3 20080623 
(prerelease) (Debian 4.1.2-23)) #4 SMP Wed 8
unwind_init: start = 0x405042e4, end = 0x40536d34, entries = 12965
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005dc0 00000481 00000000 00000002 777c3e84 100000f0 00000008 
000000b2 000000b2
vers  00000301
CPUID vers 19 rev 11 (0x0000026b)
capabilities 0x7
model 9000/785/C3700
Total Memory: 2048 MB
SMP: bootstrap CPU ID is 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 517120
Kernel command line: root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102 
palo_kernel=3/boot/vmlinux
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 160x64
------------------------
| Locking API testsuite:
----------------------------------------------------------------------------
                                  | spin |wlock |rlock |mutex | wsem | 
rsem |
 
--------------------------------------------------------------------------
                      A-A deadlock:failed|failed|  ok 
|failed|failed|failed|
                  A-B-B-A deadlock:failed|failed|  ok 
|failed|failed|failed|
              A-B-B-C-C-A deadlock:failed|failed|  ok 
|failed|failed|failed|
              A-B-C-A-B-C deadlock:failed|failed|  ok 
|failed|failed|failed|
          A-B-B-C-C-D-D-A deadlock:failed|failed|  ok 
|failed|failed|failed|
          A-B-C-D-B-D-D-A deadlock:failed|failed|  ok 
|failed|failed|failed|
          A-B-C-D-B-C-D-A deadlock:failed|failed|  ok 
|failed|failed|failed|
                     double unlock:failed|failed|failed|  ok 
|failed|failed|
                   initialize 
held:failed|failed|failed|failed|failed|failed|
                  bad unlock order:  ok  |  ok  |  ok  |  ok  |  ok  | 
ok  |
 
--------------------------------------------------------------------------
               recursive read-lock:             |  ok  | 
|failed|
            recursive read-lock #2:             |  ok  | 
|failed|
             mixed read-write-lock:             |failed| 
|failed|
             mixed write-read-lock:             |failed| 
|failed|
 
--------------------------------------------------------------------------
      hard-irqs-on + irq-safe-A/12:failed|failed|  ok  |
      soft-irqs-on + irq-safe-A/12:failed|failed|  ok  |
      hard-irqs-on + irq-safe-A/21:failed|failed|  ok  |
      soft-irqs-on + irq-safe-A/21:failed|failed|  ok  |
        sirq-safe-A => hirqs-on/12:failed|failed|  ok  |
        sirq-safe-A => hirqs-on/21:failed|failed|  ok  |
          hard-safe-A + irqs-on/12:failed|failed|  ok  |
          soft-safe-A + irqs-on/12:failed|failed|  ok  |
          hard-safe-A + irqs-on/21:failed|failed|  ok  |
          soft-safe-A + irqs-on/21:failed|failed|  ok  |
     hard-safe-A + unsafe-B #1/123:failed|failed|  ok  |
     soft-safe-A + unsafe-B #1/123:failed|failed|  ok  |
     hard-safe-A + unsafe-B #1/132:failed|failed|  ok  |
     soft-safe-A + unsafe-B #1/132:failed|failed|  ok  |
     hard-safe-A + unsafe-B #1/213:failed|failed|  ok  |
     soft-safe-A + unsafe-B #1/213:failed|failed|  ok  |
     hard-safe-A + unsafe-B #1/231:failed|failed|  ok  |
     soft-safe-A + unsafe-B #1/231:failed|failed|  ok  |
     hard-safe-A + unsafe-B #1/312:failed|failed|  ok  |
     soft-safe-A + unsafe-B #1/312:failed|failed|  ok  |
     hard-safe-A + unsafe-B #1/321:failed|failed|  ok  |
     soft-safe-A + unsafe-B #1/321:failed|failed|  ok  |
     hard-safe-A + unsafe-B #2/123:failed|failed|  ok  |
     soft-safe-A + unsafe-B #2/123:failed|failed|  ok  |
     hard-safe-A + unsafe-B #2/132:failed|failed|  ok  |
     soft-safe-A + unsafe-B #2/132:failed|failed|  ok  |
     hard-safe-A + unsafe-B #2/213:failed|failed|  ok  |
     soft-safe-A + unsafe-B #2/213:failed|failed|  ok  |
     hard-safe-A + unsafe-B #2/231:failed|failed|  ok  |
     soft-safe-A + unsafe-B #2/231:failed|failed|  ok  |
     hard-safe-A + unsafe-B #2/312:failed|failed|  ok  |
     soft-safe-A + unsafe-B #2/312:failed|failed|  ok  |
     hard-safe-A + unsafe-B #2/321:failed|failed|  ok  |
     soft-safe-A + unsafe-B #2/321:failed|failed|  ok  |
       hard-irq lock-inversion/123:failed|failed|  ok  |
       soft-irq lock-inversion/123:failed|failed|  ok  |
       hard-irq lock-inversion/132:failed|failed|  ok  |
       soft-irq lock-inversion/132:failed|failed|  ok  |
       hard-irq lock-inversion/213:failed|failed|  ok  |
       soft-irq lock-inversion/213:failed|failed|  ok  |
       hard-irq lock-inversion/231:failed|failed|  ok  |
       soft-irq lock-inversion/231:failed|failed|  ok  |
       hard-irq lock-inversion/312:failed|failed|  ok  |
       soft-irq lock-inversion/312:failed|failed|  ok  |
       hard-irq lock-inversion/321:failed|failed|  ok  |
       soft-irq lock-inversion/321:failed|failed|  ok  |
       hard-irq read-recursion/123:  ok  |
       soft-irq read-recursion/123:  ok  |
       hard-irq read-recursion/132:  ok  |
       soft-irq read-recursion/132:  ok  |
       hard-irq read-recursion/213:  ok  |
       soft-irq read-recursion/213:  ok  |
       hard-irq read-recursion/231:  ok  |
       soft-irq read-recursion/231:  ok  |
       hard-irq read-recursion/312:  ok  |
       soft-irq read-recursion/312:  ok  |
       hard-irq read-recursion/321:  ok  |
       soft-irq read-recursion/321:  ok  |
--------------------------------------------------------
144 out of 218 testcases failed, as expected. |
----------------------------------------------------
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Memory: 2054144k/2097152k available (3352k kernel code, 42608k reserved, 
1619k data, 212k init)
virtual kernel memory layout:
     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
     memory  : 0x0000000040000000 - 0x00000000c0000000   (2048 MB)
       .init : 0x000000004069c000 - 0x00000000406d1000   ( 212 kB)
       .data : 0x00000000404462d8 - 0x00000000405db000   (1619 kB)
       .text : 0x0000000040100000 - 0x00000000404462d8   (3352 kB)
Calibrating delay loop... 1495.04 BogoMIPS (lpj=2990080)
Mount-cache hash table entries: 256
Brought up 1 CPUs
net_namespace: 840 bytes
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 
0x0000b }
2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. Allegro W2 at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
7. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
Setting cache flush threshold to 180000 (1 CPUs online)
SBA found Astro 2.1 at 0xfffffffffed00000
Elroy version TR4.0 (0x5) found at 0xfffffffffed30000
PCI: Enabled native mode for NS87415 (pif=0x8f)
Elroy version TR4.0 (0x5) found at 0xfffffffffed32000
iosapic: no IRTE for 0000:01:04.0 (IRQ not connected?)
iosapic: no IRTE for 0000:01:05.0 (IRQ not connected?)
Elroy version TR4.0 (0x5) found at 0xfffffffffed38000
Elroy version TR4.0 (0x5) found at 0xfffffffffed3c000
iosapic: hpa not registered for 0000:03:02.0
powersw: Soft power switch at 0xfffffff0f0400804 enabled.
SCSI subsystem initialized
NET: Registered protocol family 2
IP route cache hash table entries: 65536 (order: 7, 524288 bytes)
TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
NET: Registered protocol family 1
Performance monitoring counters enabled for Allegro W2
Initializing RT-Tester: OK
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
msgmni has been set to 4012
alg: No test for stdrng (krng)
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 68)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
Linux agpgart interface v0.103
Serial: 8250/16550 driver4 ports, IRQ sharing disabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 3) is a 16550A
console handover: boot [ttyB0] -> real [ttyS0]
serial8250: ttyS1 at I/O 0x2f8 (irq = 4) is a 16550A
brd: module loaded
sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 69
sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
sym0: SCSI BUS mode change from SE to SE.
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
sym1: <896> rev 0x7 at pci 0000:00:0f.1 irq 69
sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.2.3
scsi 1:0:5:0: Direct-Access     SEAGATE  ST39102LC        HP01 PQ: 0 ANSI: 2
  target1:0:5: tagged command queuing enabled, command queue depth 16.
  target1:0:5: Beginning Domain Validation
  target1:0:5: asynchronous
  target1:0:5: wide asynchronous
  target1:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 15)
  target1:0:5: Domain Validation skipping write tests
  target1:0:5: Ending Domain Validation
scsi 1:0:6:0: Direct-Access     HP 36.4G ST336607LC       HPC3 PQ: 0 ANSI: 3
  target1:0:6: tagged command queuing enabled, command queue depth 16.
  target1:0:6: Beginning Domain Validation
  target1:0:6: asynchronous
  target1:0:6: wide asynchronous
  target1:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
  target1:0:6: Domain Validation skipping write tests
  target1:0:6: Ending Domain Validation
Driver 'sd' needs updating - please use bus_type methods
sd 1:0:5:0: [sda] 17773524 512-byte hardware sectors: (9.10 GB/8.47 GiB)
sd 1:0:5:0: [sda] Write Protect is off
sd 1:0:5:0: [sda] Write cache: disabled, read cache: enabled, supports 
DPO and FUA
sd 1:0:5:0: [sda] 17773524 512-byte hardware sectors: (9.10 GB/8.47 GiB)
sd 1:0:5:0: [sda] Write Protect is off
sd 1:0:5:0: [sda] Write cache: disabled, read cache: enabled, supports 
DPO and FUA
  sda: sda1 sda2 sda3 sda4
sd 1:0:5:0: [sda] Attached SCSI disk
sd 1:0:6:0: [sdb] 71132960 512-byte hardware sectors: (36.4 GB/33.9 GiB)
sd 1:0:6:0: [sdb] Write Protect is off
sd 1:0:6:0: [sdb] Write cache: disabled, read cache: enabled, supports 
DPO and FUA
sd 1:0:6:0: [sdb] 71132960 512-byte hardware sectors: (36.4 GB/33.9 GiB)
sd 1:0:6:0: [sdb] Write Protect is off
sd 1:0:6:0: [sdb] Write cache: disabled, read cache: enabled, supports 
DPO and FUA
  sdb: sdb1 sdb2 sdb3 sdb4
sd 1:0:6:0: [sdb] Attached SCSI disk
sd 1:0:5:0: Attached scsi generic sg0 type 0
sd 1:0:6:0: Attached scsi generic sg1 type 0
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
mice: PS/2 mouse device common for all mice
rtc-parisc rtc-parisc: rtc core: registered rtc-parisc as rtc0
TCP cubic registered
rtc-parisc rtc-parisc: setting system clock to 2008-11-20 07:34:21 UTC 
(1227166461)
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory:
Badness at kernel/smp.c:333
<...here is the known smp badness bug...>
212k freed
INIT: version 2.86 booting
.udev/ already exists on the static /dev! (warning).
Starting the hotplug events dispatcher: udevd.
Synthesizing the initial hotplug events...done.
Waiting for /dev to be fully populated...Linux Tulip driver version 
1.1.15 (Feb 27, 2007)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff2008000, 
00:30:6e:48:aa:64, IRQ 66.
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip1:  Index #1 - Media 10base2 (#1) described by a 21142 Serial PHY 
(2) block.
tulip1:  Index #2 - Media AUI (#2) described by a 21142 Serial PHY (2) 
block.
tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.
eth1: Digital DS21142/43 Tulip rev 33 at MMIO 0xfffffffff3004000, 
00:60:b0:7a:12:89, IRQ 72.
Slab corruption: size-128 start=00000000be8ab1d0, len=128
Redzone: 0x9d70000001/0x9f911029d74e35b.
Last user: [<0000000000000000>](0x0)
000: 00 00 00 00 00 00 00 02 00 00 00 00 00 0a 71 0c
010: 00 00 00 00 00 00 01 e8 00 00 00 00 00 00 00 30
020: 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00 04
Redzone: 0x9f911029d74e35b/0x9f911029d74e35b.
Last user: [<ffffffffffffffff>](0xfffffffffffffffc)
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
Next obj: start=00000000be8ab268, len=128
Redzone: 0xd84156c5635688c0/0xd84156c5635688c0.
Last user: [<0000000040185f34>](add_notes_attrs+0x8c/0x1c0)
000: 00 00 00 00 bd c3 09 d8 00 00 00 01 00 00 00 00
010: 00 00 00 00 bd c1 4a 78 00 00 00 00 00 00 00 00
slab error in cache_alloc_debugcheck_after(): cache `size-128': double 
free, or memory outside object was oven
Backtrace:
  [<000000004011a6c4>] show_stack+0x14/0x20
  [<000000004011a6e8>] dump_stack+0x18/0x28
  [<00000000401cc054>] __slab_error+0x3c/0x48
  [<00000000401cc850>] cache_alloc_debugcheck_after+0x1d0/0x2f8
  [<00000000401cebf0>] kmem_cache_alloc+0xd0/0x1a8
  [<00000000401d7b9c>] __register_chrdev_region+0x54/0x210
  [<00000000401d7da0>] register_chrdev+0x48/0x190
  [<00000000000cf068>] init_oss_soundcore+0x28/0x60 [soundcore]
  [<00000000000cf0bc>] init_soundcore+0x1c/0x98 [soundcore]
  [<00000000401177f0>] do_one_initcall+0x50/0x1d0
  [<0000000040188988>] sys_init_module+0x100/0x2a8
  [<0000000040104ef8>] syscall_exit+0x0/0x14

00000000be8ab1c8: redzone 1:0x9d70000001, redzone 2:0x9f911029d74e35b
acenic.c: v0.92 08/05/2002  Jes Sorensen, linux-acenic@SunSITE.dk
                             http://home.cern.ch/~jes/gige/acenic.html
0000:02:01.0: Alteon AceNIC Gigabit Ethernet at 0xfffffffff3000000, irq 71
   Tigon II (Rev. 6), Firmware: 12.4.11, MAC: 00:30:6e:0f:91:d8
   PCI bus width: 64 bits, speed: 33MHz, latency: 248 clks
   Disabling PCI memory write and invalidate
0000:02:01.0: Firmware up and running
done.
Setting parameters of disc: (none).
Setting the system clock.
System Clock set to: Thu Nov 20 07:34:43 UTC 2008.
<...continues to boot until a login prompt>

My conclusion is:
There is some problem somewhere.
It does not show up always. Changing some kernel configuration may bring 
the bug up or it may not.
James, I think if you reboot your ion machine a few times or modify some 
kernel configs, you probably will hit the bug as well.

Helge
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From - Thu Nov 08 21:03:00 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] parisc: fix bug in compat_arch_ptrace
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To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
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This commit in 2.6.28-rc:
	81e192d6ce303b6792aa38ff35f41a1a7357f23a
	parisc: convert to generic compat_sys_ptrace

introduced a bug which segfaults the parisc 64bit kernel 
when stracing 32bit applications:

Kernel Fault: Code=15 regs=00000000bafa42b0 (Addr=00000001baf5ab57)
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001011 Tainted: G        W
r00-03  000000ff0806ff0b 000000004068edc0 00000000401203f8 00000000fb3e2508
r04-07  0000000040686dc0 00000000baf5a800 fffffffffffffffc fffffffffb3e2508
r08-11  00000000baf5a800 000000000004b068 00000000000402b0 0000000000040d68
r12-15  0000000000042a9c 0000000000040a9c 0000000000040d60 0000000000042e9c
r16-19  000000000004b060 000000000004b058 0000000000042d9c ffffffffffffffff
r20-23  000000000800000b 0000000000000000 000000000800000b fffffffffb3e2508
r24-27  00000000fffffffc 0000000000000003 00000000fffffffc 0000000040686dc0
r28-31  00000001baf5a7ff 00000000bafa4280 00000000bafa42b0 00000000000001d7
sr00-03  0000000000fca000 0000000000000000 0000000000000000 0000000000fca000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040120400 0000000040120404
 IIR: 4b9a06b0    ISR: 0000000000000000  IOR: 00000001baf5ab57
 CPU:        0   CR30: 00000000bafa4000 CR31: 00000000d22344e0
 ORIG_R28: 00000000fb3e2248
 IAOQ[0]: compat_arch_ptrace+0xb8/0x160
 IAOQ[1]: compat_arch_ptrace+0xbc/0x160
 RP(r2): compat_arch_ptrace+0xb0/0x160
Backtrace:
 [<00000000401612ac>] compat_sys_ptrace+0x15c/0x180
 [<0000000040104ef8>] syscall_exit+0x0/0x14

Problem is, that compat_arch_ptrace() enters with an addr value of type 
compat_ulong_t and calls translate_usr_offset() to translate the 
address offset into a struct pt_regs offset like this:
	addr = translate_usr_offset(addr)
This means, any return value of translate_usr_offset() is
stored back as compat_ulong_t type into the addr variable.

But since translate_usr_offset() returns -1 for invalid offsets,
addr can now get the value 0xffffffff which then fails the next
return-value sanity check and thus the kernel tries to access 
invalid memory:
	if (addr < 0)
		break;

Fix this bug by modifying translate_usr_offset() to take and return
values of type compat_ulong_t, and by returning the value 
"sizeof(struct pt_regs)" as an error indicator.
Additionally change the sanity check to check for return values
for >= sizeof(struct pt_regs).

This patch survived my compile and run-tests.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 90904f9..927db36 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -183,10 +183,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
  * being 64 bit in both cases.
  */
 
-static long translate_usr_offset(long offset)
+static compat_ulong_t translate_usr_offset(compat_ulong_t offset)
 {
 	if (offset < 0)
-		return -1;
+		return sizeof(struct pt_regs);
 	else if (offset <= 32*4)	/* gr[0..31] */
 		return offset * 2 + 4;
 	else if (offset <= 32*4+32*8)	/* gr[0..31] + fr[0..31] */
@@ -194,7 +194,7 @@ static long translate_usr_offset(long offset)
 	else if (offset < sizeof(struct pt_regs)/2 + 32*4)
 		return offset * 2 + 4 - 32*8;
 	else
-		return -1;
+		return sizeof(struct pt_regs);
 }
 
 long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
@@ -209,7 +209,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 		if (addr & (sizeof(compat_uint_t)-1))
 			break;
 		addr = translate_usr_offset(addr);
-		if (addr < 0)
+		if (addr >= sizeof(struct pt_regs))
 			break;
 
 		tmp = *(compat_uint_t *) ((char *) task_regs(child) + addr);
@@ -236,7 +236,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 			if (addr & (sizeof(compat_uint_t)-1))
 				break;
 			addr = translate_usr_offset(addr);
-			if (addr < 0)
+			if (addr >= sizeof(struct pt_regs))
 				break;
 			if (addr >= PT_FR0 && addr <= PT_FR31 + 4) {
 				/* Special case, fp regs are 64 bits anyway */
--
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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On Thu, Nov 20, 2008 at 8:55 AM, Helge Deller <deller@gmx.de> wrote:

> 2) To avoid possible cross-compiler bugs I built James's ion-config (with no
> modifications at all!) on the c3k natively. It booted yesterday nicely
> without any problems from local disk. Today, I booted the same kernel, again
> with no modifications or changes at all, just the same kernel which already
> was on the disk, and it brought up a Slab corruption:
[snip]
> My conclusion is:
> There is some problem somewhere.
> It does not show up always. Changing some kernel configuration may bring the
> bug up or it may not.
> James, I think if you reboot your ion machine a few times or modify some
> kernel configs, you probably will hit the bug as well.

Well on that topic, I've seen for a while (at least with 2.6.22.*) a
similar case where the same unmodified kernel binary would, from time
to time, fail to boot the machine (stuck with the timer_interrupt
delayed message). ISTR that happened most frequently on my A500-5X.
That may be something else, but the point is the symptom that "a given
kernel behaves differently across reboots" is not something new, if
that helps...

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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> But I continued with testing:
> 1) I modified James's ion-config for netbooting and built it. Crashed 
> same way as Dave just reported in another mail (DEBUG_BLOCK_EXT_DEVT is 
> enabled, you need to specify explicit textual name for "root=" boot option.)

In my case, the "root=" option was specified in the palo command line,
and I still got the error.  Tried booting several times and the same error
occurred each time.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> VFS: Cannot open root device "sda3" or unknown-block(0,0)
> Please append a correct "root=" boot option; here are the available partitions:
> DEBUG_BLOCK_EXT_DEVT is enabled, you need to specify explicit textual name for "root=" boot option.
> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
> Rebooting in 5 seconds..

I would guess this is because the kernel is in the palo partition.  2.6.27
doesn't have this problem...

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Any user on existing parisc 32- and 64bit-kernels can easily crash
the kernel and as such enforce a DSO.
A simple testcase is available here: 
	http://gsyprf10.external.hp.com/~deller/crash.tgz

The problem is introduced by the fact, that the handle_interruption()
crash handler calls the show_regs() function, which in turn tries
to unwind the stack by calling parisc_show_stack().
Since the stack contains userspace addresses, a try to unwind 
the stack is dangerous and useless and leads to the crash.

The fix is trivial: For userspace processes
a) avoid to unwind the stack, and
b) avoid to resolve userspace addresses to kernel symbol names.

While touching this code, I converted print_symbol() to %pS 
printk formats and made parisc_show_stack() static.

An initial patch for this was written by Kyle McMartin back in August:
http://marc.info/?l=linux-parisc&m=121805168830283&w=2

Compile and run-tested with a 64bit parisc kernel.
Patches for -stable series will follow shortly.

Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 675f1d0..acea2dc 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -24,7 +24,6 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/console.h>
-#include <linux/kallsyms.h>
 #include <linux/bug.h>
 
 #include <asm/assembly.h>
@@ -51,7 +50,7 @@
 DEFINE_SPINLOCK(pa_dbit_lock);
 #endif
 
-void parisc_show_stack(struct task_struct *t, unsigned long *sp,
+static void parisc_show_stack(struct task_struct *task, unsigned long *sp,
 	struct pt_regs *regs);
 
 static int printbinary(char *buf, unsigned long x, int nbits)
@@ -121,18 +120,19 @@ static void print_fr(char *level, struct pt_regs *regs)
 
 void show_regs(struct pt_regs *regs)
 {
-	int i;
+	int i, user;
 	char *level;
 	unsigned long cr30, cr31;
 
-	level = user_mode(regs) ? KERN_DEBUG : KERN_CRIT;
+	user = user_mode(regs);
+	level = user ? KERN_DEBUG : KERN_CRIT;
 
 	print_gr(level, regs);
 
 	for (i = 0; i < 8; i += 4)
 		PRINTREGS(level, regs->sr, "sr", RFMT, i);
 
-	if (user_mode(regs))
+	if (user)
 		print_fr(level, regs);
 
 	cr30 = mfctl(30);
@@ -145,14 +145,14 @@ void show_regs(struct pt_regs *regs)
 	printk("%s CPU: %8d   CR30: " RFMT " CR31: " RFMT "\n",
 	       level, current_thread_info()->cpu, cr30, cr31);
 	printk("%s ORIG_R28: " RFMT "\n", level, regs->orig_r28);
-	printk(level);
-	print_symbol(" IAOQ[0]: %s\n", regs->iaoq[0]);
-	printk(level);
-	print_symbol(" IAOQ[1]: %s\n", regs->iaoq[1]);
-	printk(level);
-	print_symbol(" RP(r2): %s\n", regs->gr[2]);
-
-	parisc_show_stack(current, NULL, regs);
+
+	if (!user) {
+		printk("%s IAOQ[0]: %pS\n", level, (void *) regs->iaoq[0]);
+		printk("%s IAOQ[1]: %pS\n", level, (void *) regs->iaoq[1]);
+		printk("%s RP(r2): %pS\n", level, (void *) regs->gr[2]);
+
+		parisc_show_stack(current, NULL, regs);
+	}
 }
 
 
@@ -173,20 +173,15 @@ static void do_show_stack(struct unwind_frame_info *info)
 			break;
 
 		if (__kernel_text_address(info->ip)) {
-			printk("%s [<" RFMT ">] ", (i&0x3)==1 ? KERN_CRIT : "", info->ip);
-#ifdef CONFIG_KALLSYMS
-			print_symbol("%s\n", info->ip);
-#else
-			if ((i & 0x03) == 0)
-				printk("\n");
-#endif
+			printk(KERN_CRIT " [<" RFMT ">] %pS\n",
+				info->ip, (void *) info->ip);
 			i++;
 		}
 	}
-	printk("\n");
+	printk(KERN_CRIT "\n");
 }
 
-void parisc_show_stack(struct task_struct *task, unsigned long *sp,
+static void parisc_show_stack(struct task_struct *task, unsigned long *sp,
 	struct pt_regs *regs)
 {
 	struct unwind_frame_info info;
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From - Thu Nov 08 21:03:01 2018
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [PATCH] parisc: fix kernel crash when unwinding a userspace process
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To: Helge Deller <deller@gmx.de>
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Helge Deller wrote:
> Any user on existing parisc 32- and 64bit-kernels can easily crash
> the kernel and as such enforce a DSO.
> A simple testcase is available here: 
> 	http://gsyprf10.external.hp.com/~deller/crash.tgz
> 
> The problem is introduced by the fact, that the handle_interruption()
> crash handler calls the show_regs() function, which in turn tries
> to unwind the stack by calling parisc_show_stack().
> Since the stack contains userspace addresses, a try to unwind 
> the stack is dangerous and useless and leads to the crash.

Helge,

I think this is ok, but can you preserve the printing of IAOQ/RP even 
for user processes?

randolph

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From - Thu Nov 08 21:03:01 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: fix kernel crash when unwinding a userspace process
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Randolph Chung wrote:
> Helge Deller wrote:
>> Any user on existing parisc 32- and 64bit-kernels can easily crash
>> the kernel and as such enforce a DSO.
>> A simple testcase is available here: 
>>     http://gsyprf10.external.hp.com/~deller/crash.tgz
>>
>> The problem is introduced by the fact, that the handle_interruption()
>> crash handler calls the show_regs() function, which in turn tries
>> to unwind the stack by calling parisc_show_stack().
>> Since the stack contains userspace addresses, a try to unwind the 
>> stack is dangerous and useless and leads to the crash.
> 
> Helge,
> 
> I think this is ok, but can you preserve the printing of IAOQ/RP even 
> for user processes?

Thanks Randolph,

You are probably right. It's better to stay consistent for debugging and 
you'll see the important registers at once.
I'll respin a new patch.

Helge
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: fix kernel crash when unwinding a userspace process (v2)
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Any user on existing parisc 32- and 64bit-kernels can easily crash
the kernel and as such enforce a DSO.
A simple testcase is available here: 
        http://gsyprf10.external.hp.com/~deller/crash.tgz

The problem is introduced by the fact, that the handle_interruption()
crash handler calls the show_regs() function, which in turn tries
to unwind the stack by calling parisc_show_stack().
Since the stack contains userspace addresses, a try to unwind 
the stack is dangerous and useless and leads to the crash.

The fix is trivial: For userspace processes
a) avoid to unwind the stack, and
b) avoid to resolve userspace addresses to kernel symbol names.

While touching this code, I converted print_symbol() to %pS 
printk formats and made parisc_show_stack() static.

An initial patch for this was written by Kyle McMartin back in August:
http://marc.info/?l=linux-parisc&m=121805168830283&w=2

Compile and run-tested with a 64bit parisc kernel.
Patches for -stable series will follow shortly.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 675f1d0..4c771cd 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -24,7 +24,6 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/console.h>
-#include <linux/kallsyms.h>
 #include <linux/bug.h>
 
 #include <asm/assembly.h>
@@ -51,7 +50,7 @@
 DEFINE_SPINLOCK(pa_dbit_lock);
 #endif
 
-void parisc_show_stack(struct task_struct *t, unsigned long *sp,
+static void parisc_show_stack(struct task_struct *task, unsigned long *sp,
 	struct pt_regs *regs);
 
 static int printbinary(char *buf, unsigned long x, int nbits)
@@ -121,18 +120,19 @@ static void print_fr(char *level, struct pt_regs *regs)
 
 void show_regs(struct pt_regs *regs)
 {
-	int i;
+	int i, user;
 	char *level;
 	unsigned long cr30, cr31;
 
-	level = user_mode(regs) ? KERN_DEBUG : KERN_CRIT;
+	user = user_mode(regs);
+	level = user ? KERN_DEBUG : KERN_CRIT;
 
 	print_gr(level, regs);
 
 	for (i = 0; i < 8; i += 4)
 		PRINTREGS(level, regs->sr, "sr", RFMT, i);
 
-	if (user_mode(regs))
+	if (user)
 		print_fr(level, regs);
 
 	cr30 = mfctl(30);
@@ -145,14 +145,18 @@ void show_regs(struct pt_regs *regs)
 	printk("%s CPU: %8d   CR30: " RFMT " CR31: " RFMT "\n",
 	       level, current_thread_info()->cpu, cr30, cr31);
 	printk("%s ORIG_R28: " RFMT "\n", level, regs->orig_r28);
-	printk(level);
-	print_symbol(" IAOQ[0]: %s\n", regs->iaoq[0]);
-	printk(level);
-	print_symbol(" IAOQ[1]: %s\n", regs->iaoq[1]);
-	printk(level);
-	print_symbol(" RP(r2): %s\n", regs->gr[2]);
-
-	parisc_show_stack(current, NULL, regs);
+
+	if (user) {
+		printk("%s IAOQ[0]: " RFMT "\n", level, regs->iaoq[0]);
+		printk("%s IAOQ[1]: " RFMT "\n", level, regs->iaoq[1]);
+		printk("%s RP(r2): " RFMT "\n", level, regs->gr[2]);
+	} else {
+		printk("%s IAOQ[0]: %pS\n", level, (void *) regs->iaoq[0]);
+		printk("%s IAOQ[1]: %pS\n", level, (void *) regs->iaoq[1]);
+		printk("%s RP(r2): %pS\n", level, (void *) regs->gr[2]);
+
+		parisc_show_stack(current, NULL, regs);
+	}
 }
 
 
@@ -173,20 +177,15 @@ static void do_show_stack(struct unwind_frame_info *info)
 			break;
 
 		if (__kernel_text_address(info->ip)) {
-			printk("%s [<" RFMT ">] ", (i&0x3)==1 ? KERN_CRIT : "", info->ip);
-#ifdef CONFIG_KALLSYMS
-			print_symbol("%s\n", info->ip);
-#else
-			if ((i & 0x03) == 0)
-				printk("\n");
-#endif
+			printk(KERN_CRIT " [<" RFMT ">] %pS\n",
+				info->ip, (void *) info->ip);
 			i++;
 		}
 	}
-	printk("\n");
+	printk(KERN_CRIT "\n");
 }
 
-void parisc_show_stack(struct task_struct *task, unsigned long *sp,
+static void parisc_show_stack(struct task_struct *task, unsigned long *sp,
 	struct pt_regs *regs)
 {
 	struct unwind_frame_info info;
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Subject: Re: [PATCH] parisc: fix kernel crash when unwinding a userspace
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To: Helge Deller <deller@gmx.de>
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On Fri, 21 Nov 2008 15:16:50 +0100
Helge Deller <deller@gmx.de> wrote:

> Any user on existing parisc 32- and 64bit-kernels can easily crash
> the kernel and as such enforce a DSO.
> A simple testcase is available here: 
>         http://gsyprf10.external.hp.com/~deller/crash.tgz
> 
> The problem is introduced by the fact, that the handle_interruption()
> crash handler calls the show_regs() function, which in turn tries
> to unwind the stack by calling parisc_show_stack().
> Since the stack contains userspace addresses, a try to unwind 
> the stack is dangerous and useless and leads to the crash.
> 
> The fix is trivial: For userspace processes
> a) avoid to unwind the stack, and
> b) avoid to resolve userspace addresses to kernel symbol names.
> 
> While touching this code, I converted print_symbol() to %pS 
> printk formats and made parisc_show_stack() static.
> 
> An initial patch for this was written by Kyle McMartin back in August:
> http://marc.info/?l=linux-parisc&m=121805168830283&w=2
> 
> Compile and run-tested with a 64bit parisc kernel.

Why has a fix for such a severe bug been floating around unmerged for
such a long time?

> Patches for -stable series will follow shortly.

That shouldn't be needed - I'll cc stable on my copy and the stable
maintainers should see that and pick it up.  The patch applies cleanly
all the way back to 2.6.25.


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From - Thu Nov 08 21:03:01 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: fix kernel crash when unwinding a userspace process
 (v2)
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To: Andrew Morton <akpm@linux-foundation.org>
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Andrew Morton wrote:
> On Fri, 21 Nov 2008 15:16:50 +0100
> Helge Deller <deller@gmx.de> wrote:
> 
>> Any user on existing parisc 32- and 64bit-kernels can easily crash
>> the kernel and as such enforce a DSO.
>> A simple testcase is available here: 
>>         http://gsyprf10.external.hp.com/~deller/crash.tgz
>>
>> The problem is introduced by the fact, that the handle_interruption()
>> crash handler calls the show_regs() function, which in turn tries
>> to unwind the stack by calling parisc_show_stack().
>> Since the stack contains userspace addresses, a try to unwind 
>> the stack is dangerous and useless and leads to the crash.
>>
>> The fix is trivial: For userspace processes
>> a) avoid to unwind the stack, and
>> b) avoid to resolve userspace addresses to kernel symbol names.
>>
>> While touching this code, I converted print_symbol() to %pS 
>> printk formats and made parisc_show_stack() static.
>>
>> An initial patch for this was written by Kyle McMartin back in August:
>> http://marc.info/?l=linux-parisc&m=121805168830283&w=2
>>
>> Compile and run-tested with a 64bit parisc kernel.
> 
> Why has a fix for such a severe bug been floating around unmerged for
> such a long time?

I've tried to push it upstream a few times...

>> Patches for -stable series will follow shortly.
> 
> That shouldn't be needed - I'll cc stable on my copy and the stable
> maintainers should see that and pick it up.  The patch applies cleanly
> all the way back to 2.6.25.

Although it may apply to the older stable kernels, I'm currently not 
sure if this will work then.
We added the fixes for PA for the '%pS' vsprintf format pretty late. 
This is probably then a patch which needs backporting to stable as well 
(if it didn't happened yet):
	commit deac93df26b20cf8438339b5935b5f5643bc30c9
	Author: James Bottomley <James.Bottomley@HansenPartnership.com>
	Date:   Wed Sep 3 20:43:36 2008 -0500
	lib: Correct printk %pF to work on all architectures

Alternatively, I could write a little more simple patch, which is what I 
  intended initially.

Thanks a lot Andrew!
Helge
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From - Thu Nov 08 21:03:01 2018
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Subject: Re: [PATCH] parisc: fix kernel crash when unwinding a userspace
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On Fri, 21 Nov 2008 23:00:06 +0100
Helge Deller <deller@gmx.de> wrote:

> Andrew Morton wrote:
> > On Fri, 21 Nov 2008 15:16:50 +0100
> > Helge Deller <deller@gmx.de> wrote:
> > 
> >> Any user on existing parisc 32- and 64bit-kernels can easily crash
> >> the kernel and as such enforce a DSO.
> >> A simple testcase is available here: 
> >>         http://gsyprf10.external.hp.com/~deller/crash.tgz
> >>
> >> The problem is introduced by the fact, that the handle_interruption()
> >> crash handler calls the show_regs() function, which in turn tries
> >> to unwind the stack by calling parisc_show_stack().
> >> Since the stack contains userspace addresses, a try to unwind 
> >> the stack is dangerous and useless and leads to the crash.
> >>
> >> The fix is trivial: For userspace processes
> >> a) avoid to unwind the stack, and
> >> b) avoid to resolve userspace addresses to kernel symbol names.
> >>
> >> While touching this code, I converted print_symbol() to %pS 
> >> printk formats and made parisc_show_stack() static.
> >>
> >> An initial patch for this was written by Kyle McMartin back in August:
> >> http://marc.info/?l=linux-parisc&m=121805168830283&w=2
> >>
> >> Compile and run-tested with a 64bit parisc kernel.
> > 
> > Why has a fix for such a severe bug been floating around unmerged for
> > such a long time?
> 
> I've tried to push it upstream a few times...

OK, well I'll merge it next week unless someone stops me.

> >> Patches for -stable series will follow shortly.
> > 
> > That shouldn't be needed - I'll cc stable on my copy and the stable
> > maintainers should see that and pick it up.  The patch applies cleanly
> > all the way back to 2.6.25.
> 
> Although it may apply to the older stable kernels, I'm currently not 
> sure if this will work then.
> We added the fixes for PA for the '%pS' vsprintf format pretty late. 
> This is probably then a patch which needs backporting to stable as well 
> (if it didn't happened yet):
> 	commit deac93df26b20cf8438339b5935b5f5643bc30c9
> 	Author: James Bottomley <James.Bottomley@HansenPartnership.com>
> 	Date:   Wed Sep 3 20:43:36 2008 -0500
> 	lib: Correct printk %pF to work on all architectures

Oh, OK.  I'll update the stable tag in the patch appropriately.

> Alternatively, I could write a little more simple patch, which is what I 
>   intended initially.

I'd suggest that you send that patch to stable@kernel.org in reply to
this one when you see it get dropped from -mm.

Unless someone stops me ;)
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Subject: Re: [PATCH] parisc: fix kernel crash when unwinding a userspace
	process (v2)
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On Fri, Nov 21, 2008 at 02:20:13PM -0800, Andrew Morton wrote:
...
> > > Why has a fix for such a severe bug been floating around unmerged for
> > > such a long time?

Three people are listed for parisc-linux in MAINTAINERS.
My understanding was Kyle would integrate and push patches.
Willy and I would help by reviewing code, testing and misc crap.

I asked if I should ACK parisc specific patches and was told in general
I didn't need to. I will start sending "Reviewed By:" when I feel
I understand what a patch fixes and that it's correct (even if not perfect).

> > I've tried to push it upstream a few times...
> 
> OK, well I'll merge it next week unless someone stops me.

I won't stop you. :)
Based on this posting:
    http://marc.info/?l=linux-parisc&m=122726233324164&w=2

you can add:
   Review-by: Randolph Chung <randolph@tausq.org>

I trust Randolph - he used to have commit access to the parisc-linux.org
CVS tree when we still used one.

And Helge has been great about fixing stuff - much better than the three
listed maintainers lately.
Kyle, willy, any objection to adding Helge to the MAINTAINERS list
for PARISC port?
I'd rather allow Helge to make a few small mistakes occasionally rather
than watch his parisc specific patches fall on the floor.

thanks,
grant
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From: Grant Grundler <grundler@parisc-linux.org>
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On Thu, Nov 20, 2008 at 11:57:00AM -0500, John David Anglin wrote:
> > VFS: Cannot open root device "sda3" or unknown-block(0,0)
> > Please append a correct "root=" boot option; here are the available partitions:
> > DEBUG_BLOCK_EXT_DEVT is enabled, you need to specify explicit textual name for "root=" boot option.
> > Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
> > Rebooting in 5 seconds..
> 
> I would guess this is because the kernel is in the palo partition.  2.6.27
> doesn't have this problem...

I'm not seeing this with 2.6.28-rc3 or 2.6.28-rc5.
But I don't have DEBUG_BLOCK_EXT_DEVT enabled either.

The palo partition is just another ext2 filesystem from the kernel
point of view.

Maybe the full device pathname (e.g. root=/dev/sda3) is required?
It fully failed to associate sda3 with a known block device.

hth,
grant
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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On Wed, Nov 19, 2008 at 11:31:42AM +0900, James Bottomley wrote:
> On Tue, 2008-11-18 at 21:04 +0100, Helge Deller wrote:
> > I've tried various -rc candidates in the last few weeks, and sadly the 
> > parisc kernel is in pretty bad shape.
> > 
> > At the beginning I started to get problems only when I had USB 
> > keyboard/mouse attached to the PA machine. This lead to bugzilla 
> > http://bugzilla.kernel.org/show_bug.cgi?id=11913
> > 
> > Now, with -rc4 and -rc5 things got even worse.
> > 
> > Crashes happen often just directly at the beginning.
> > I'm sure it's not USB related any more, and I assume we have some 
> > strange mm-problem somewhere.
> 
> I'd be really dubious about that.  Our pa8900 ... the most mm unstable
> system we have ... is running -rc5 just fine.  The only warning before
> boot is the usual SMP one.

I'm not. During a normal kernel build:
/bin/sh: line 1:  2985 Trace/breakpoint trap   ( cat /dev/null ) > sound/mips/modules.order
make[2]: *** [sound/mips/modules.order] Error 133

Restarting the build allowed it to finish.
This is 2.6.28-rc5 trying to build itself again. I didn't see this
with -rc3 though it possible it's just chance that I didn't.

Config file is on:
   http://iou.parisc-linux.org/~grundler/2.6.28-rc5-config-j6000

(or gsyprf11:~grundler/public_html/2.6.28-rc5-config-j6000)



> Linux ion 2.6.28-rc5 #20 SMP Tue Nov 18 18:16:35 PST 2008 parisc64
> 
> Why don't we compare configs?  This is mine for ion:
> 
> http://parisc-linux.org/~jejb/config-2.6.28-rc5-ion
> 
> I suspect we have some nasty interaction in the device driver subsystem
> (ion, the pa8900, isn't running either USB or PDC stable).

That's possible. But the IOMMU code hasn't changed. I'm inclined
to believe another VM bug has crept in.

I agree with Dave that kernel hasn't gotten more stable since 2.6.22
kernel that we keep running on gsyprf11.

hth,
grant
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On Fri, Nov 21, 2008 at 10:57:54PM -0700, Grant Grundler wrote:
> Maybe the full device pathname (e.g. root=/dev/sda3) is required?

ok....this was rubish.  Prevous message showed:
    Command line for kernel: 'root=/dev/sda3 panic=5 console=ttyS1

I don't know what the problem is here.


thanks,
grant
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From - Thu Nov 08 21:03:01 2018
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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On Fri, Nov 21, 2008 at 10:53:01PM -0700, Grant Grundler wrote:
> And Helge has been great about fixing stuff - much better than the three
> listed maintainers lately.
> Kyle, willy, any objection to adding Helge to the MAINTAINERS list
> for PARISC port?
> I'd rather allow Helge to make a few small mistakes occasionally rather
> than watch his parisc specific patches fall on the floor.

No objection from me.  I think it's time to remove me from MAINTAINERS
as it's probably been six months since I last turned on any of my parisc
machines.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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On Sat, Nov 22, 2008 at 05:22:09AM -0700, Matthew Wilcox wrote:
> On Fri, Nov 21, 2008 at 10:53:01PM -0700, Grant Grundler wrote:
> > And Helge has been great about fixing stuff - much better than the three
> > listed maintainers lately.
> > Kyle, willy, any objection to adding Helge to the MAINTAINERS list
> > for PARISC port?
> > I'd rather allow Helge to make a few small mistakes occasionally rather
> > than watch his parisc specific patches fall on the floor.
> 
> No objection from me.  I think it's time to remove me from MAINTAINERS
> as it's probably been six months since I last turned on any of my parisc
> machines.

Thanks!  We have quorum.
Andrew can you please apply this and send to linus?
Or should I start acting like a maintainer and send it myself? :)

Willy, I'm not removing you from Cupertino test ring LDAP or any other
privileges unless you ask me to. Just note I appreciate all of your past
(and future) help with the port and you are always welcome in Mountain View.

thanks,
grant

Signed-off-By: Grant Grundler <grundler@parisc-linux.org>
Reviewed-by: Matthew Wilcox <matthew@wil.cx>

diff --git a/MAINTAINERS b/MAINTAINERS
index 618c1ef..5b5034c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3294,8 +3294,8 @@ S:	Maintained
 PARISC ARCHITECTURE
 P:	Kyle McMartin
 M:	kyle@mcmartin.ca
-P:	Matthew Wilcox
-M:	matthew@wil.cx
+P:	Helge Deller
+M:	deller@gmx.de
 P:	Grant Grundler
 M:	grundler@parisc-linux.org
 L:	linux-parisc@vger.kernel.org
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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> On Fri, Nov 21, 2008 at 10:57:54PM -0700, Grant Grundler wrote:
> > Maybe the full device pathname (e.g. root=/dev/sda3) is required?
> 
> ok....this was rubish.  Prevous message showed:
>     Command line for kernel: 'root=/dev/sda3 panic=5 console=ttyS1
> 
> I don't know what the problem is here.

Added a couple of printks:

VFS: name="/dev/root", p="cramfs"
err=-6
VFS: Cannot open root device "sda3" or unknown-block(0,0)
Please append a correct "root=" boot option; here are the available partitions:
DEBUG_BLOCK_EXT_DEVT is enabled, you need to specify explicit textual name for "root=" boot option.
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

Note: there are no partitions printed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: fix kernel crash when unwinding a userspace	process
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Grant Grundler wrote:
> On Sat, Nov 22, 2008 at 05:22:09AM -0700, Matthew Wilcox wrote:
>> On Fri, Nov 21, 2008 at 10:53:01PM -0700, Grant Grundler wrote:
>>> And Helge has been great about fixing stuff - much better than the three
>>> listed maintainers lately.
>>> Kyle, willy, any objection to adding Helge to the MAINTAINERS list
>>> for PARISC port?
>>> I'd rather allow Helge to make a few small mistakes occasionally rather
>>> than watch his parisc specific patches fall on the floor.
>> No objection from me.  I think it's time to remove me from MAINTAINERS
>> as it's probably been six months since I last turned on any of my parisc
>> machines.
> 
> Thanks!  We have quorum.
> Andrew can you please apply this and send to linus?
> Or should I start acting like a maintainer and send it myself? :)
> 
> Willy, I'm not removing you from Cupertino test ring LDAP or any other
> privileges unless you ask me to. Just note I appreciate all of your past
> (and future) help with the port and you are always welcome in Mountain View.
> 
> thanks,
> grant
> 
> Signed-off-By: Grant Grundler <grundler@parisc-linux.org>
> Reviewed-by: Matthew Wilcox <matthew@wil.cx>

Acked-by: Helge Deller <deller@gmx.de>

> diff --git a/MAINTAINERS b/MAINTAINERS
> index 618c1ef..5b5034c 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -3294,8 +3294,8 @@ S:	Maintained
>  PARISC ARCHITECTURE
>  P:	Kyle McMartin
>  M:	kyle@mcmartin.ca
> -P:	Matthew Wilcox
> -M:	matthew@wil.cx
> +P:	Helge Deller
> +M:	deller@gmx.de
>  P:	Grant Grundler
>  M:	grundler@parisc-linux.org
>  L:	linux-parisc@vger.kernel.org
> 

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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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On Sat, 22 Nov 2008, John David Anglin wrote:

> Added a couple of printks:
> 
> VFS: name="/dev/root", p="cramfs"
> err=-6
> VFS: Cannot open root device "sda3" or unknown-block(0,0)
> Please append a correct "root=" boot option; here are the available partitions:

Boots if I add initrd=1/initrd.img.  Have to say the error message isn't
very helpful.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, 2008-11-22 at 16:37 -0500, John David Anglin wrote:
> On Sat, 22 Nov 2008, John David Anglin wrote:
> 
> > Added a couple of printks:
> > 
> > VFS: name="/dev/root", p="cramfs"
> > err=-6
> > VFS: Cannot open root device "sda3" or unknown-block(0,0)
> > Please append a correct "root=" boot option; here are the available partitions:
> 
> Boots if I add initrd=1/initrd.img.  Have to say the error message isn't
> very helpful.

Um, I think you're using a configuration where SCSI is modular?  So it
finds the root disk if you have an initrd (by loading the modules) and
it can't if you don't.

James


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On Tue, Nov 18, 2008 at 09:04:32PM +0100, Helge Deller wrote:
> Hello PA hackers,
>
> I've tried various -rc candidates in the last few weeks, and sadly the 
> parisc kernel is in pretty bad shape.
>
> At the beginning I started to get problems only when I had USB 
> keyboard/mouse attached to the PA machine. This lead to bugzilla 
> http://bugzilla.kernel.org/show_bug.cgi?id=11913

I don't have any USB devices attached (serial console) on j6000.
Also getting occasional:
Backtrace:

with no other output when a process (usually hppa64-gcc) segfaults "randomly".
This is with kernel builds.

> Now, with -rc4 and -rc5 things got even worse.

I've tried both -rc3 and -rc5. I'm going to try 2.6.27.7 as well.

> Crashes happen often just directly at the beginning.
> I'm sure it's not USB related any more, and I assume we have some strange 
> mm-problem somewhere.

I'm inclined to agree though it's just a guess.

> The kernel crashes at various places, and mostly a null-pointer is 
> involved.

I haven't crashed the kernel per se, just getting segfaults reminiscent
of when we still had issues with mm not playing well with VIVT caches.

> Right now I'm clueless...

Sorry, I'm not better. :(
All I can do is try to work backwards a bit...but we've been in
pretty bad shape with various types of breakage since 2.6.22 about.

grant
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To: grundler@parisc-linux.org (Grant Grundler)
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> On Tue, Nov 18, 2008 at 09:04:32PM +0100, Helge Deller wrote:
> > Hello PA hackers,
> >
> > I've tried various -rc candidates in the last few weeks, and sadly the 
> > parisc kernel is in pretty bad shape.
> >
> > At the beginning I started to get problems only when I had USB 
> > keyboard/mouse attached to the PA machine. This lead to bugzilla 
> > http://bugzilla.kernel.org/show_bug.cgi?id=11913
> 
> I don't have any USB devices attached (serial console) on j6000.
> Also getting occasional:
> Backtrace:
> 
> with no other output when a process (usually hppa64-gcc) segfaults "randomly".
> This is with kernel builds.
> 
> > Now, with -rc4 and -rc5 things got even worse.
> 
> I've tried both -rc3 and -rc5. I'm going to try 2.6.27.7 as well.

Try rc6.  It seems better than rc5.  With rc5 and JEB's ion config
on rp3340, bash dumped core four times building rc6.  In general, I see
more random segfaults in bash and make than any other applications.

rc6 is certainly not perfect.  I managed a full GCC build but in the
testsuite (ada) I has this error in the build log:

...
Running chapter cc ...
sed: option requires an argument -- e
Usage: sed [OPTION]... {script-only-if-no-other-script} [input-file]...

  -n, --quiet, --silent
		 suppress automatic printing of pattern space
  -e script, --expression=script
		 add the script to the commands to be executed
  -f script-file, --file=script-file
		 add the contents of script-file to the commands to be executed
  -i[SUFFIX], --in-place[=SUFFIX]
		 edit files in place (makes backup if extension supplied)
  -l N, --line-length=N
		 specify the desired line-wrap length for the `l' command
  --posix
		 disable all GNU extensions.
  -r, --regexp-extended
		 use extended regular expressions in the script.
  -s, --separate
		 consider files as separate rather than as a single continuous
		 long stream.
  -u, --unbuffered
		 load minimal amounts of data from the input files and flush
		 the output buffers more often
      --help     display this help and exit
      --version  output version information and exit

If no -e, --expression, -f, or --file option is given, then the first
non-option argument is taken as the sed script to interpret.  All
remaining arguments are names of input files; if no input files are
specified, then the standard input is read.

E-mail bug reports to: bonzini@gnu.org .
Be sure to include the word ``sed'' somewhere in the ``Subject:'' field.
FAIL:   cc30002

In the ada log:

BUILD cc30002.adb
gnatmake --GCC="/home/dave/gnu/gcc/objdir/gcc/xgcc -B/home/dave/gnu/gcc/objdir/g
cc/" -gnatws -O2 -I/home/dave/gnu/gcc/objdir/gcc/testsuite/ada/acats/support cc3
0002.adb -largs --GCC="/home/dave/gnu/gcc/objdir/gcc/xgcc -B/home/dave/gnu/gcc/o
bjdir/gcc/"
/home/dave/gnu/gcc/objdir/gcc/xgcc -c -B/home/dave/gnu/gcc/objdir/gcc/ -gnatws -
O2 -I/home/dave/gnu/gcc/objdir/gcc/testsuite/ada/acats/support cc30002.adb
/home/dave/gnu/gcc/objdir/gcc/xgcc -c -B/home/dave/gnu/gcc/objdir/gcc/ -gnatws -
O2 -I/home/dave/gnu/gcc/objdir/gcc/testsuite/ada/acats/support cc30002_0.adb
/home/dave/gnu/gcc/objdir/gcc/xgcc -c -B/home/dave/gnu/gcc/objdir/gcc/ -gnatws -
O2 -I/home/dave/gnu/gcc/objdir/gcc/testsuite/ada/acats/support cc30002_1.adb
/home/dave/gnu/gcc/objdir/gcc/xgcc -c -B/home/dave/gnu/gcc/objdir/gcc/ -gnatws -
O2 -I/home/dave/gnu/gcc/objdir/gcc/testsuite/ada/acats/support cc30002_2.adb
/home/dave/gnu/gcc/objdir/gcc/xgcc -c -B/home/dave/gnu/gcc/objdir/gcc/ -gnatws -
O2 -I/home/dave/gnu/gcc/objdir/gcc/testsuite/ada/acats/support cc30002_3.ads
gnatbind -I/home/dave/gnu/gcc/objdir/gcc/testsuite/ada/acats/support -x cc30002.
ali
gnatlink cc30002.ali --GCC=/home/dave/gnu/gcc/objdir/gcc/xgcc -B/home/dave/gnu/g
cc/objdir/gcc/
RUN 
/home/dave/gnu/gcc/gcc/gcc/testsuite/ada/acats/run_all.sh: line 16: /home/dave/g
nu/gcc/objdir/gcc/testsuite/ada/acats/tests/cc/cc30002/: is a directory
FAIL:   cc30002

The file cc30002 is there:

dave@mx3210:~/gnu/gcc/objdir/gcc/testsuite/ada/acats/tests/cc/cc30002$ ls
cc30002      cc30002.lst    cc30002_1.adb  cc30002_2.ads
cc30002.adb  cc30002_0.adb  cc30002_1.ads  cc30002_3.ads
cc30002.log  cc30002_0.ads  cc30002_2.adb

and the test passes if run.  I've never seen cc30002 fail before.

The error building rc6 was:

  ...
  LD [M]  fs/exportfs/exportfs.o

  malloc: ../../../bash/lib/sh/stringvec.c:73: assertion botched
  free: called with unallocated block argument
  Aborting.../bin/sh: line 1:  7965 Aborted                 (core dumped) ( cat /dev/null; echo kernel/fs/exportfs/exportfs.ko ) > fs/exportfs/modules.order
  make[2]: *** [fs/exportfs/modules.order] Error 134
  make[1]: *** [fs/exportfs] Error 2
  make: *** [fs] Error 2

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > Boots if I add initrd=1/initrd.img.  Have to say the error message isn't
> > very helpful.
> 
> Um, I think you're using a configuration where SCSI is modular?  So it
> finds the root disk if you have an initrd (by loading the modules) and
> it can't if you don't.

The loop fails in the first iteration because the mount fails with
ENXIO.  It's not clear whether this is intentional but the code doesn't
check for it.

Dave
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> The error building rc6 was:
> 
>   ...
>   LD [M]  fs/exportfs/exportfs.o
> 
>   malloc: ../../../bash/lib/sh/stringvec.c:73: assertion botched

This just happened with rc6, so the bug isn't fixed.

Dave
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> >   malloc: ../../../bash/lib/sh/stringvec.c:73: assertion botched
> 
> This just happened with rc6, so the bug isn't fixed.

Continued testing rc6.  After three segv loops caused by /bin/sh
segfaulting and the kernel stacktrace filling the file system with
log messages, I rebuilt rc6 with Helge's fix.  Now I things are
better when bash segfaults.  However, it drops core so often that
the system is unusable for serious work.  The problem appears more
like a glibc bug than a kernel fault, but it's not clear.

Here's one segv:

dave@mx3210:/var/log$ dpkg -l libc6
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  libc6          2.7-16         GNU C Library: Shared libraries

dave@mx3210:~/gnu/gcc/objdir/libiberty$ gdb -c core /bin/sh
GNU gdb (GDB) 6.8.50.20080915-cvs
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "hppa-unknown-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
(no debugging symbols found)
BFD: Warning: /home/dave/gnu/gcc/objdir/libiberty/core is truncated: expected core file size >= 1654784, found: 1585152.
Reading symbols from /lib/libncurses.so.5...(no debugging symbols found)...done.
Loaded symbols for /lib/libncurses.so.5
Reading symbols from /lib/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/libc.so.6...
(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/ld.so.1

Core was generated by `/bin/sh -c if [ x"-fPIC" != x ]; then \
  gcc -c -DHAVE_CONFIG_H -g -fkeep-inli'.
Program terminated with signal 11, Segmentation fault.
#0  0x401ed4e4 in ?? () from /lib/ld.so.1
(gdb) bt
#0  0x401ed4e4 in ?? () from /lib/ld.so.1
#1  0x401f3b58 in ?? () from /lib/ld.so.1
#2  0x00046398 in ?? ()
#3  0x00048640 in wait_for ()
#4  0x00038494 in execute_command_internal ()
#5  0x00038608 in execute_command ()
#6  0x000374a4 in execute_command_internal ()
#7  0x00073994 in parse_and_execute ()
#8  0x000259fc in ?? ()
#9  0x00026988 in main ()
(gdb) disass 0x401ed4d4 0x401ed4f4
Dump of assembler code from 0x401ed4d4 to 0x401ed4f4:
0x401ed4d4:	ldw 0(r3),r20
0x401ed4d8:	ldw 4(ret0),ret0
0x401ed4dc:	add,l r20,ret0,r25
0x401ed4e0:	ldw 2c(r3),ret0
0x401ed4e4:	ldw 4(ret0),ret1
0x401ed4e8:	ldw 8(r5),ret0
0x401ed4ec:	addil L%800,r19,r1
0x401ed4f0:	add,l r25,ret0,r25
End of assembler dump.
(gdb) p/x $ret0
$1 = 0x0
(gdb) info shared
>From        To          Syms Read   Shared Object Library
0x402fca40  0x4031e490  Yes         /lib/libncurses.so.5
0x405f5d10  0x405f70ec  Yes         /lib/libdl.so.2
0x4061beb0  0x4070d630  Yes         /lib/libc.so.6
0x401e0370  0x401f8c80  Yes         /lib/ld.so.1

The segv looks to be in _dl_fixup at 0xf3b8 in /lib/ld.so.1.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Nov 24, 2008 at 9:54 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> The segv looks to be in _dl_fixup at 0xf3b8 in /lib/ld.so.1.

The dynamic loader is sensitive to VM bugs, as are several of the
glibc tests. Too bad you probably can't run the glibc testsuite on
this kernel.

Given your earlier comments it would seen the segfault is not
reproducible and happens often and randomly?

The _dl_fixup routine is very complicated, and eventually responsible
for mapping in a new shared library. This could tickle any number of
VM bugs.

The only way I know how to solve this class of problem is to start
bisecting the kernel until it works again and determine what commit
made the stability worse.

$0.02.

I'm still organizing the new house Kristine and I are renting, and my
rack is only partly cabled up at this point. I'll try to get on that
ASAP so I can also have a look at the latest kernel.

Cheers,
Carlos.
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On Tue, Nov 25, 2008 at 8:58 AM, Guy Martin <gmsoft@tuxicoman.be> wrote:
> It has been happening to me as far back as 2.6.25 IIRC.
> It occurs only on SMP kernels and on various models (K410, L2000).
>
> I've tried to bissect that as well but kernel before 2.6.25 aren't really useable SMP due to the global irq bug or so.
>
> To me that is a bug that as always been there. It is random but some builds almost always fail. Not always at the same place tho.

Can you build glibc, run the testsuite, and see if anything fails
semi-consistently?

Cheers,
Carlos.
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From - Thu Nov 08 21:03:03 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
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Hi Carlos,

It has been happening to me as far back as 2.6.25 IIRC.
It occurs only on SMP kernels and on various models (K410, L2000).

I've tried to bissect that as well but kernel before 2.6.25 aren't really useable SMP due to the global irq bug or so.

To me that is a bug that as always been there. It is random but some builds almost always fail. Not always at the same place tho.

Cheers,
  Guy

On Tue, 25 Nov 2008 08:33:24 -0500
"Carlos O'Donell" <carlos@systemhalted.org> wrote:

> On Mon, Nov 24, 2008 at 9:54 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> > The segv looks to be in _dl_fixup at 0xf3b8 in /lib/ld.so.1.
> 
> The dynamic loader is sensitive to VM bugs, as are several of the
> glibc tests. Too bad you probably can't run the glibc testsuite on
> this kernel.
> 
> Given your earlier comments it would seen the segfault is not
> reproducible and happens often and randomly?
> 
> The _dl_fixup routine is very complicated, and eventually responsible
> for mapping in a new shared library. This could tickle any number of
> VM bugs.
> 
> The only way I know how to solve this class of problem is to start
> bisecting the kernel until it works again and determine what commit
> made the stability worse.
> 
> $0.02.
> 
> I'm still organizing the new house Kristine and I are renting, and my
> rack is only partly cabled up at this point. I'll try to get on that
> ASAP so I can also have a look at the latest kernel.
> 
> Cheers,
> Carlos.
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html


-- 
Guy Martin
Gentoo Linux - HPPA port lead

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On Thu, Nov 20, 2008 at 10:58:56PM +0100, Helge Deller wrote:
> Any user on existing parisc 32- and 64bit-kernels can easily crash
> the kernel and as such enforce a DSO.
> A simple testcase is available here: 
> 	http://gsyprf10.external.hp.com/~deller/crash.tgz
> 
> The problem is introduced by the fact, that the handle_interruption()
> crash handler calls the show_regs() function, which in turn tries
> to unwind the stack by calling parisc_show_stack().
> Since the stack contains userspace addresses, a try to unwind 
> the stack is dangerous and useless and leads to the crash.
> 
> The fix is trivial: For userspace processes
> a) avoid to unwind the stack, and
> b) avoid to resolve userspace addresses to kernel symbol names.
> 
> While touching this code, I converted print_symbol() to %pS 
> printk formats and made parisc_show_stack() static.
> 
> An initial patch for this was written by Kyle McMartin back in August:
> http://marc.info/?l=linux-parisc&m=121805168830283&w=2
> 
> Compile and run-tested with a 64bit parisc kernel.
> Patches for -stable series will follow shortly.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 

Sorry, I've been sick for the last few days. I see this has already been
applied, cool.

Anyway, acked-by me.
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From - Thu Nov 08 21:03:03 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: [PATCH] parisc: fix bug in compat_arch_ptrace
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To: Helge Deller <deller@gmx.de>
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On Thu, Nov 20, 2008 at 10:54:09AM +0100, Helge Deller wrote:
> This commit in 2.6.28-rc:
> 	81e192d6ce303b6792aa38ff35f41a1a7357f23a
> 	parisc: convert to generic compat_sys_ptrace
> 
> introduced a bug which segfaults the parisc 64bit kernel 
> when stracing 32bit applications:
> 

Thanks, looks fine.

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On Fri, Nov 21, 2008 at 10:53:01PM -0700, Grant Grundler wrote:
> And Helge has been great about fixing stuff - much better than the three
> listed maintainers lately.

You have an awful lot of nerve saying this, considering.
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On Tue, Nov 25, 2008 at 12:20:00PM -0500, Kyle McMartin wrote:
> On Fri, Nov 21, 2008 at 10:53:01PM -0700, Grant Grundler wrote:
> > And Helge has been great about fixing stuff - much better than the three
> > listed maintainers lately.
> 
> You have an awful lot of nerve saying this, considering.

Kyle,
For parisc specific files, I've seen more patches from Helge on
linux-parisc than anyone else. That's all I meant.  I know I've
contributed zero parisc patches in a long time.
I'm not out to offend anyone or pick on you specifically.

I routinely review other people's parisc patches, occasionally try to
narrow down the latest b0rkage, and will continue with the care and
feeding of the public access machines in Cupertino. The "code review"
is the only reason I feel like I should continue as a listed maintainer.

thanks,
grant
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On Tue, Nov 25, 2008 at 07:47:56PM -0700, Grant Grundler wrote:
> On Tue, Nov 25, 2008 at 12:20:00PM -0500, Kyle McMartin wrote:
> > On Fri, Nov 21, 2008 at 10:53:01PM -0700, Grant Grundler wrote:
> > > And Helge has been great about fixing stuff - much better than the three
> > > listed maintainers lately.
> > 
> > You have an awful lot of nerve saying this, considering.
> 
> Kyle,
> For parisc specific files, I've seen more patches from Helge on
> linux-parisc than anyone else. That's all I meant.  I know I've
> contributed zero parisc patches in a long time.
> I'm not out to offend anyone or pick on you specifically.
> 
> I routinely review other people's parisc patches, occasionally try to
> narrow down the latest b0rkage, and will continue with the care and
> feeding of the public access machines in Cupertino. The "code review"
> is the only reason I feel like I should continue as a listed maintainer.
> 

Possibly because I don't send my own to the mailing list unless I feel
they need review?

Seriously, I *am* offended and I believe I have every right to be.
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Hi Carlos,

Sure I will. Any particular version you want me to test ?

Also, I was quite lost with the flow of emails about kernel bugs lately.
What kernel version should I use and which what patch set ?

Cheers,
 Guy

On Tue, 25 Nov 2008 09:07:42 -0500
"Carlos O'Donell" <carlos@systemhalted.org> wrote:

> On Tue, Nov 25, 2008 at 8:58 AM, Guy Martin <gmsoft@tuxicoman.be>
> wrote:
> > It has been happening to me as far back as 2.6.25 IIRC.
> > It occurs only on SMP kernels and on various models (K410, L2000).
> >
> > I've tried to bissect that as well but kernel before 2.6.25 aren't
> > really useable SMP due to the global irq bug or so.
> >
> > To me that is a bug that as always been there. It is random but
> > some builds almost always fail. Not always at the same place tho.
> 
> Can you build glibc, run the testsuite, and see if anything fails
> semi-consistently?
> 
> Cheers,
> Carlos.


-- 
Guy Martin
Gentoo Linux - HPPA port lead

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Hi,

I just pulled and built Kyle's parisc-2.6 tree.  It essentially 2.6.28-rc6
plus four extra patches (three parisc specific).

I am seeing these warnings in a 64-bit kernel build:

drivers/input/keyboard/hilkbd.c: In function 'hil_init_chip':
drivers/input/keyboard/hilkbd.c:317: warning: format '%08lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t'

drivers/net/lasi_82596.c: In function 'lan_init_chip':
drivers/net/lasi_82596.c:164: warning: format '%lx' expects type 'long unsigned 
int', but argument 3 has type 'resource_size_t'
drivers/net/lasi_82596.c:169: warning: format '%lx' expects type 'long unsigned 
int', but argument 2 has type 'resource_size_t'

drivers/parisc/ccio-dma.c: In function 'ccio_init_resource':
drivers/parisc/ccio-dma.c:1403: warning: format '%08lx' expects type 'long unsig
ned int', but argument 3 has type 'resource_size_t'drivers/parisc/ccio-dma.c:1403: warning: format '%08lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
drivers/parisc/ccio-dma.c: In function 'ccio_probe':
drivers/parisc/ccio-dma.c:1554: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'

drivers/parisc/hppb.c: In function 'hppb_probe':
drivers/parisc/hppb.c:65: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'resource_size_t'
drivers/parisc/hppb.c:77: warning: format '%08x' expects type 'unsigned int', but argument 3 has type 'resource_size_t'
drivers/parisc/hppb.c:77: warning: format '%08x' expects type 'unsigned int', but argument 4 has type 'resource_size_t'

drivers/parisc/dino.c:822: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
drivers/parisc/dino.c:822: warning: format '%lx' expects type 'long unsigned int', but argument 5 has type 'resource_size_t'
drivers/parisc/dino.c: In function 'dino_common_init':
drivers/parisc/dino.c:902: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
drivers/parisc/dino.c:902: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'

drivers/parisc/asp.c: In function 'asp_init_chip':
drivers/parisc/asp.c:85: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'

drivers/parport/parport_gsc.c: In function 'parport_init_chip':
drivers/parport/parport_gsc.c:356: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t'

drivers/serial/8250_gsc.c: In function 'serial_init_chip':
drivers/serial/8250_gsc.c:44: warning: format '%lx' expects type 'long unsigned 
int', but argument 2 has type 'resource_size_t'

sound/parisc/harmony.c: In function 'snd_harmony_create':
sound/parisc/harmony.c:938: warning: format '%lx' expects type 'long unsigned in
t', but argument 2 has type 'resource_size_t'

'resource_size_t' is defined in linux/types.h:

#ifdef CONFIG_PHYS_ADDR_T_64BIT
typedef u64 phys_addr_t;
#else
typedef u32 phys_addr_t;
#endif

typedef phys_addr_t resource_size_t;

CONFIG_PHYS_ADDR_T_64BIT is defined in linux/autoconf.h, so I have to think
it is not being included, resulting in incorrect defines for phys_addr_t.
Is this what needs to be done?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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John David Anglin wrote:
> Hi,
> 
> I just pulled and built Kyle's parisc-2.6 tree.  It essentially 2.6.28-rc6
> plus four extra patches (three parisc specific).
> 
> I am seeing these warnings in a 64-bit kernel build:
> 
> drivers/input/keyboard/hilkbd.c: In function 'hil_init_chip':
> drivers/input/keyboard/hilkbd.c:317: warning: format '%08lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t'
> 
> drivers/net/lasi_82596.c: In function 'lan_init_chip':
> drivers/net/lasi_82596.c:164: warning: format '%lx' expects type 'long unsigned 
> int', but argument 3 has type 'resource_size_t'
> drivers/net/lasi_82596.c:169: warning: format '%lx' expects type 'long unsigned 
> int', but argument 2 has type 'resource_size_t'
> 
> drivers/parisc/ccio-dma.c: In function 'ccio_init_resource':
> drivers/parisc/ccio-dma.c:1403: warning: format '%08lx' expects type 'long unsig
> ned int', but argument 3 has type 'resource_size_t'drivers/parisc/ccio-dma.c:1403: warning: format '%08lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
> drivers/parisc/ccio-dma.c: In function 'ccio_probe':
> drivers/parisc/ccio-dma.c:1554: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
> 
> drivers/parisc/hppb.c: In function 'hppb_probe':
> drivers/parisc/hppb.c:65: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'resource_size_t'
> drivers/parisc/hppb.c:77: warning: format '%08x' expects type 'unsigned int', but argument 3 has type 'resource_size_t'
> drivers/parisc/hppb.c:77: warning: format '%08x' expects type 'unsigned int', but argument 4 has type 'resource_size_t'
> 
> drivers/parisc/dino.c:822: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
> drivers/parisc/dino.c:822: warning: format '%lx' expects type 'long unsigned int', but argument 5 has type 'resource_size_t'
> drivers/parisc/dino.c: In function 'dino_common_init':
> drivers/parisc/dino.c:902: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
> drivers/parisc/dino.c:902: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
> 
> drivers/parisc/asp.c: In function 'asp_init_chip':
> drivers/parisc/asp.c:85: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
> 
> drivers/parport/parport_gsc.c: In function 'parport_init_chip':
> drivers/parport/parport_gsc.c:356: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t'
> 
> drivers/serial/8250_gsc.c: In function 'serial_init_chip':
> drivers/serial/8250_gsc.c:44: warning: format '%lx' expects type 'long unsigned 
> int', but argument 2 has type 'resource_size_t'
> 
> sound/parisc/harmony.c: In function 'snd_harmony_create':
> sound/parisc/harmony.c:938: warning: format '%lx' expects type 'long unsigned in
> t', but argument 2 has type 'resource_size_t'
> 
> 'resource_size_t' is defined in linux/types.h:
> 
> #ifdef CONFIG_PHYS_ADDR_T_64BIT
> typedef u64 phys_addr_t;
> #else
> typedef u32 phys_addr_t;
> #endif
> 
> typedef phys_addr_t resource_size_t;
> 
> CONFIG_PHYS_ADDR_T_64BIT is defined in linux/autoconf.h, so I have to think
> it is not being included, resulting in incorrect defines for phys_addr_t.
> Is this what needs to be done?

Citing Documentation/printk-formats.txt:
If <type> is dependent on a config option for its size (e.g., sector_t,
blkcnt_t, phys_addr_t, resource_size_t) or is architecture-dependent
for its size (e.g., tcflag_t), use a format specifier of its largest
possible type and explicitly cast to it.  Example:

         printk("test: sector number/total blocks: %llu/%llu\n",
                 (unsigned long long)sector, (unsigned long 
long)blockcount);

So, we should convert everything to (unsigned long long).
I was planning to send such patches soon, but didn't had time yet.

Helge

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The following changes since commit ed313489badef16d700f5a3be50e8fd8f8294bc8:
  Linus Torvalds (1):
        Merge master.kernel.org:/home/rmk/linux-2.6-arm

are available in the git repository at:

  master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git master

Geert Uytterhoeven (1):
      parisc: __kernel_time_t is always long

Helge Deller (1):
      parisc: fix kernel crash when unwinding a userspace process

Kay Sievers (1):
      parisc: struct device - replace bus_id with dev_name(), dev_set_name()

 arch/parisc/include/asm/parisc-device.h |    4 +-
 arch/parisc/include/asm/posix_types.h   |    3 +-
 arch/parisc/kernel/drivers.c            |    6 +++-
 arch/parisc/kernel/traps.c              |   43 +++++++++++++++----------------
 4 files changed, 28 insertions(+), 28 deletions(-)
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> So, we should convert everything to (unsigned long long).
> I was planning to send such patches soon, but didn't had time yet.

All the warnings are for addresses.  We also need to change the format
specifier depending on whether addresses are 32 or 64 bits.  For example,

hil_init_chip(struct parisc_device *dev)
{
        if (!dev->irq) {
		printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%08lx\n", dev->hpa.start);

Are there some standard 32 and 64 bit defines for format strings?  Or, do we
always want 16 hex digits?

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Grant Grundler <grundler@parisc-linux.org>
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To: Andrew Morton <akpm@linux-foundation.org>
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On Sat, Nov 22, 2008 at 11:01:52AM -0700, Grant Grundler wrote:
> On Sat, Nov 22, 2008 at 05:22:09AM -0700, Matthew Wilcox wrote:
> > On Fri, Nov 21, 2008 at 10:53:01PM -0700, Grant Grundler wrote:
> > > And Helge has been great about fixing stuff - much better than the three
> > > listed maintainers lately.
> > > Kyle, willy, any objection to adding Helge to the MAINTAINERS list
> > > for PARISC port?
> > > I'd rather allow Helge to make a few small mistakes occasionally rather
> > > than watch his parisc specific patches fall on the floor.
> > 
> > No objection from me.  I think it's time to remove me from MAINTAINERS
> > as it's probably been six months since I last turned on any of my parisc
> > machines.
> 
> Thanks!  We have quorum.
> Andrew can you please apply this and send to linus?
> Or should I start acting like a maintainer and send it myself? :)
> 
> Willy, I'm not removing you from Cupertino test ring LDAP or any other
> privileges unless you ask me to. Just note I appreciate all of your past
> (and future) help with the port and you are always welcome in Mountain View.

Andrew,

Updated version of this patch: I'm removing my own name as well for some of
the same reasons as willy. I'll continue to review patches for linux-parisc,
maintaining parisc/ia64 systems for gcc/kernel developer access, and testing
kernels on parisc occasionally (working on autotest.kernel.org to get
that more consistent and easier.)

thanks,
grant

Signed-off-By: Grant Grundler <grundler@parisc-linux.org>
Reviewed-by: Matthew Wilcox <matthew@wil.cx>
Acked-by: Helge Deller <deller@gmx.de>


diff --git a/MAINTAINERS b/MAINTAINERS
index 618c1ef..56e519a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3294,10 +3294,8 @@ S:	Maintained
 PARISC ARCHITECTURE
 P:	Kyle McMartin
 M:	kyle@mcmartin.ca
-P:	Matthew Wilcox
-M:	matthew@wil.cx
-P:	Grant Grundler
-M:	grundler@parisc-linux.org
+P:	Helge Deller
+M:	deller@gmx.de
 L:	linux-parisc@vger.kernel.org
 W:	http://www.parisc-linux.org/
 T:	git kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
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From: "Thibaut VARENE" <T-Bone@parisc-linux.org>
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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On Tue, Dec 2, 2008 at 1:00 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:

>
> Are there some standard 32 and 64 bit defines for format strings?  Or, do we
> always want 16 hex digits?

In traps.c we used to do this for the regs dump:

#ifdef __LP64__
#define RFMT "%016lx"
#else
#define RFMT "%08lx"
#endif

and then sprintf(p, " " RFMT, (i+j) == 0 ? 0 : regs->gr[i + j]);

I guess a similar trick could do, to some extent?

HTH

T-Bone
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Grant Grundler wrote:
> On Sat, Nov 22, 2008 at 11:01:52AM -0700, Grant Grundler wrote:
>> On Sat, Nov 22, 2008 at 05:22:09AM -0700, Matthew Wilcox wrote:
>>> On Fri, Nov 21, 2008 at 10:53:01PM -0700, Grant Grundler wrote:
>>>> And Helge has been great about fixing stuff - much better than the three
>>>> listed maintainers lately.
>>>> Kyle, willy, any objection to adding Helge to the MAINTAINERS list
>>>> for PARISC port?
>>>> I'd rather allow Helge to make a few small mistakes occasionally rather
>>>> than watch his parisc specific patches fall on the floor.
>>> No objection from me.  I think it's time to remove me from MAINTAINERS
>>> as it's probably been six months since I last turned on any of my parisc
>>> machines.
>> Thanks!  We have quorum.
>> Andrew can you please apply this and send to linus?
>> Or should I start acting like a maintainer and send it myself? :)
>>
>> Willy, I'm not removing you from Cupertino test ring LDAP or any other
>> privileges unless you ask me to. Just note I appreciate all of your past
>> (and future) help with the port and you are always welcome in Mountain View.
> 
> Andrew,
> 
> Updated version of this patch: I'm removing my own name as well for some of
> the same reasons as willy. 

Grant, even if you are currently only occasionally fixing bugs or 
reviewing patches, I think it would still be valuable to keep you listed 
here as one of the parisc maintainers.

Helge

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Subject: [patch 3/3] parisc: use the new byteorder headers
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From: Harvey Harrison <harvey.harrison@gmail.com>

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/parisc/include/asm/byteorder.h |   37 ++++++++------------------
 1 file changed, 12 insertions(+), 25 deletions(-)

diff -puN arch/parisc/include/asm/byteorder.h~parisc-use-the-new-byteorder-headers arch/parisc/include/asm/byteorder.h
--- a/arch/parisc/include/asm/byteorder.h~parisc-use-the-new-byteorder-headers
+++ a/arch/parisc/include/asm/byteorder.h
@@ -4,9 +4,10 @@
 #include <asm/types.h>
 #include <linux/compiler.h>
 
-#ifdef __GNUC__
+#define __BIG_ENDIAN
+#define __SWAB_64_THRU_32__
 
-static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
+static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
 {
 	__asm__("dep %0, 15, 8, %0\n\t"		/* deposit 00ab -> 0bab */
 		"shd %%r0, %0, 8, %0"		/* shift 000000ab -> 00ba */
@@ -14,8 +15,9 @@ static __inline__ __attribute_const__ __
 		: "0" (x));
 	return x;
 }
+#define __arch_swab16 __arch_swab16
 
-static __inline__ __attribute_const__ __u32 ___arch__swab24(__u32 x)
+static inline __attribute_const__ __u32 __arch_swab24(__u32 x)
 {
 	__asm__("shd %0, %0, 8, %0\n\t"		/* shift xabcxabc -> cxab */
 		"dep %0, 15, 8, %0\n\t"		/* deposit cxab -> cbab */
@@ -25,7 +27,7 @@ static __inline__ __attribute_const__ __
 	return x;
 }
 
-static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
+static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
 {
 	unsigned int temp;
 	__asm__("shd %0, %0, 16, %1\n\t"	/* shift abcdabcd -> cdab */
@@ -35,7 +37,7 @@ static __inline__ __attribute_const__ __
 		: "0" (x));
 	return x;
 }
-
+#define __arch_swab32 __arch_swab32
 
 #if BITS_PER_LONG > 32
 /*
@@ -48,7 +50,8 @@ static __inline__ __attribute_const__ __
 **      HSHR    67452301 -> *6*4*2*0 into %0
 **      OR      %0 | %1  -> 76543210 into %0 (all done!)
 */
-static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x) {
+static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
+{
 	__u64 temp;
 	__asm__("permh,3210 %0, %0\n\t"
 		"hshl %0, 8, %1\n\t"
@@ -58,25 +61,9 @@ static __inline__ __attribute_const__ __
 		: "0" (x));
 	return x;
 }
-#define __arch__swab64(x) ___arch__swab64(x)
-#define __BYTEORDER_HAS_U64__
-#elif !defined(__STRICT_ANSI__)
-static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
-{
-	__u32 t1 = ___arch__swab32((__u32) x);
-	__u32 t2 = ___arch__swab32((__u32) (x >> 32));
-	return (((__u64) t1 << 32) | t2);
-}
-#define __arch__swab64(x) ___arch__swab64(x)
-#define __BYTEORDER_HAS_U64__
-#endif
-
-#define __arch__swab16(x) ___arch__swab16(x)
-#define __arch__swab24(x) ___arch__swab24(x)
-#define __arch__swab32(x) ___arch__swab32(x)

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Subject: [patch 1/3] parisc/lib/: make code static
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From: Adrian Bunk <bunk@kernel.org>

Make the following needlessly global code static:

- iomap.c: struct iomap_ops[]
- memcpy.c: pa_memcpy()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/parisc/lib/iomap.c  |    2 +-
 arch/parisc/lib/memcpy.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff -puN arch/parisc/lib/iomap.c~parisc-lib-make-code-static arch/parisc/lib/iomap.c
--- a/arch/parisc/lib/iomap.c~parisc-lib-make-code-static
+++ a/arch/parisc/lib/iomap.c
@@ -261,7 +261,7 @@ static const struct iomap_ops iomem_ops 
 	iomem_write32r,
 };
 
-const struct iomap_ops *iomap_ops[8] = {
+static const struct iomap_ops *iomap_ops[8] = {
 	[0] = &ioport_ops,
 	[7] = &iomem_ops
 };
diff -puN arch/parisc/lib/memcpy.c~parisc-lib-make-code-static arch/parisc/lib/memcpy.c
--- a/arch/parisc/lib/memcpy.c~parisc-lib-make-code-static
+++ a/arch/parisc/lib/memcpy.c
@@ -275,7 +275,7 @@ handle_store_error:
 
 
 /* Returns 0 for success, otherwise, returns number of bytes not transferred. */
-unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
 {
 	register unsigned long src, dst, t1, t2, t3;
 	register unsigned char *pcs, *pcd;
_
--
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Subject: [patch 2/3] drivers/parisc/: make code static
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From: Adrian Bunk <bunk@kernel.org>

Make the following needlessly global code static:

- asp.c: asp_init_chip()
- ccio-dma.c: ccio_io_pdir_entry()
- dino.c: struct dino_port_ops
- dino.c: struct dino_bios_ops
- hppb.c: struct hppb_card_head
- lasi.c: lasi_led_init()
- lasi.c: lasi_init_chip()
- lba_pci.c: struct lba_bios_ops
- sba_iommu.c: sba_io_pdir_entry()
- sba_iommu.c: sba_driver_callback()
- sba_iommu.c: sba_driver_callback()
- wax.c: wax_init_chip()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/parisc/asp.c       |    3 +--
 drivers/parisc/ccio-dma.c  |    2 +-
 drivers/parisc/dino.c      |    4 ++--
 drivers/parisc/hppb.c      |    2 +-
 drivers/parisc/lasi.c      |    5 ++---
 drivers/parisc/lba_pci.c   |    2 +-
 drivers/parisc/sba_iommu.c |    7 +++----
 drivers/parisc/wax.c       |    3 +--
 8 files changed, 12 insertions(+), 16 deletions(-)

diff -puN drivers/parisc/asp.c~drivers-parisc-make-code-static drivers/parisc/asp.c
--- a/drivers/parisc/asp.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/asp.c
@@ -71,8 +71,7 @@ static void asp_choose_irq(struct parisc
  */
 #define ASP_INTERRUPT_ADDR 0xf0800000
 
-int __init
-asp_init_chip(struct parisc_device *dev)
+static int __init asp_init_chip(struct parisc_device *dev)
 {
 	struct gsc_irq gsc_irq;
 	int ret;
diff -puN drivers/parisc/ccio-dma.c~drivers-parisc-make-code-static drivers/parisc/ccio-dma.c
--- a/drivers/parisc/ccio-dma.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/ccio-dma.c
@@ -555,7 +555,7 @@ static u32 hint_lookup[] = {
  * (Load Coherence Index) instruction.  The 8 bits used for the virtual
  * index are bits 12:19 of the value returned by LCI.
  */ 
-void CCIO_INLINE
+static void CCIO_INLINE
 ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
 		   unsigned long hints)
 {
diff -puN drivers/parisc/dino.c~drivers-parisc-make-code-static drivers/parisc/dino.c
--- a/drivers/parisc/dino.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/dino.c
@@ -287,7 +287,7 @@ DINO_PORT_OUT(b,  8, 3)
 DINO_PORT_OUT(w, 16, 2)
 DINO_PORT_OUT(l, 32, 0)
 
-struct pci_port_ops dino_port_ops = {
+static struct pci_port_ops dino_port_ops = {
 	.inb	= dino_in8,
 	.inw	= dino_in16,
 	.inl	= dino_in32,
@@ -690,7 +690,7 @@ dino_fixup_bus(struct pci_bus *bus)
 }
 
 
-struct pci_bios_ops dino_bios_ops = {
+static struct pci_bios_ops dino_bios_ops = {
 	.init		= dino_bios_init,
 	.fixup_bus	= dino_fixup_bus
 };
diff -puN drivers/parisc/hppb.c~drivers-parisc-make-code-static drivers/parisc/hppb.c
--- a/drivers/parisc/hppb.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/hppb.c
@@ -29,7 +29,7 @@ struct hppb_card {
 	struct hppb_card *next;
 };
 
-struct hppb_card hppb_card_head = {
+static struct hppb_card hppb_card_head = {
 	.hpa = 0,
 	.next = NULL,
 };
diff -puN drivers/parisc/lasi.c~drivers-parisc-make-code-static drivers/parisc/lasi.c
--- a/drivers/parisc/lasi.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/lasi.c
@@ -107,7 +107,7 @@ lasi_init_irq(struct gsc_asic *this_lasi
 
 #else
 
-void __init lasi_led_init(unsigned long lasi_hpa)
+static void __init lasi_led_init(unsigned long lasi_hpa)
 {
 	unsigned long datareg;
 
@@ -163,8 +163,7 @@ static void lasi_power_off(void)
 	gsc_writel(0x02, datareg);
 }
 
-int __init
-lasi_init_chip(struct parisc_device *dev)
+static int __init lasi_init_chip(struct parisc_device *dev)
 {
 	extern void (*chassis_power_off)(void);
 	struct gsc_asic *lasi;
diff -puN drivers/parisc/lba_pci.c~drivers-parisc-make-code-static drivers/parisc/lba_pci.c
--- a/drivers/parisc/lba_pci.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/lba_pci.c
@@ -824,7 +824,7 @@ lba_fixup_bus(struct pci_bus *bus)
 }
 
 
-struct pci_bios_ops lba_bios_ops = {
+static struct pci_bios_ops lba_bios_ops = {
 	.init =		lba_bios_init,
 	.fixup_bus =	lba_fixup_bus,
 };
diff -puN drivers/parisc/sba_iommu.c~drivers-parisc-make-code-static drivers/parisc/sba_iommu.c
--- a/drivers/parisc/sba_iommu.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/sba_iommu.c
@@ -561,7 +561,7 @@ typedef unsigned long space_t;
  * IOMMU uses little endian for the pdir.
  */
 
-void SBA_INLINE
+static void SBA_INLINE
 sba_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
 		  unsigned long hint)
 {
@@ -1874,7 +1874,7 @@ static struct parisc_device_id sba_tbl[]
 	{ 0, }
 };
 
-int sba_driver_callback(struct parisc_device *);
+static int sba_driver_callback(struct parisc_device *);
 
 static struct parisc_driver sba_driver = {
 	.name =		MODULE_NAME,
@@ -1887,8 +1887,7 @@ static struct parisc_driver sba_driver =
 ** If so, initialize the chip and tell other partners in crime they
 ** have work to do.
 */
-int
-sba_driver_callback(struct parisc_device *dev)
+static int sba_driver_callback(struct parisc_device *dev)
 {
 	struct sba_device *sba_dev;
 	u32 func_class;
diff -puN drivers/parisc/wax.c~drivers-parisc-make-code-static drivers/parisc/wax.c
--- a/drivers/parisc/wax.c~drivers-parisc-make-code-static
+++ a/drivers/parisc/wax.c
@@ -68,8 +68,7 @@ wax_init_irq(struct gsc_asic *wax)
 //	gsc_writel(0xFFFFFFFF, base+0x2000); /* RS232-B on Wax */
 }
 
-int __init
-wax_init_chip(struct parisc_device *dev)
+static int __init wax_init_chip(struct parisc_device *dev)
 {
 	struct gsc_asic *wax;
 	struct parisc_device *parent;
_
--
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [patch 2/3] drivers/parisc/: make code static
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On Mon, Dec 01, 2008 at 02:28:16PM -0800, akpm@linux-foundation.org wrote:
> From: Adrian Bunk <bunk@kernel.org>
> 
> Make the following needlessly global code static:
> 
> - asp.c: asp_init_chip()
> - ccio-dma.c: ccio_io_pdir_entry()
> - dino.c: struct dino_port_ops
> - dino.c: struct dino_bios_ops
> - hppb.c: struct hppb_card_head
> - lasi.c: lasi_led_init()
> - lasi.c: lasi_init_chip()
> - lba_pci.c: struct lba_bios_ops
> - sba_iommu.c: sba_io_pdir_entry()
> - sba_iommu.c: sba_driver_callback()
> - sba_iommu.c: sba_driver_callback()
> - wax.c: wax_init_chip()
> 
> Signed-off-by: Adrian Bunk <bunk@kernel.org>
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: Matthew Wilcox <matthew@wil.cx>
> Cc: Grant Grundler <grundler@parisc-linux.org>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Reviewed-by: Grant Grundler <grundler@parisc-linux.org>

thanks,
grant

> ---
> 
>  drivers/parisc/asp.c       |    3 +--
>  drivers/parisc/ccio-dma.c  |    2 +-
>  drivers/parisc/dino.c      |    4 ++--
>  drivers/parisc/hppb.c      |    2 +-
>  drivers/parisc/lasi.c      |    5 ++---
>  drivers/parisc/lba_pci.c   |    2 +-
>  drivers/parisc/sba_iommu.c |    7 +++----
>  drivers/parisc/wax.c       |    3 +--
>  8 files changed, 12 insertions(+), 16 deletions(-)
> 
> diff -puN drivers/parisc/asp.c~drivers-parisc-make-code-static drivers/parisc/asp.c
> --- a/drivers/parisc/asp.c~drivers-parisc-make-code-static
> +++ a/drivers/parisc/asp.c
> @@ -71,8 +71,7 @@ static void asp_choose_irq(struct parisc
>   */
>  #define ASP_INTERRUPT_ADDR 0xf0800000
>  
> -int __init
> -asp_init_chip(struct parisc_device *dev)
> +static int __init asp_init_chip(struct parisc_device *dev)
>  {
>  	struct gsc_irq gsc_irq;
>  	int ret;
> diff -puN drivers/parisc/ccio-dma.c~drivers-parisc-make-code-static drivers/parisc/ccio-dma.c
> --- a/drivers/parisc/ccio-dma.c~drivers-parisc-make-code-static
> +++ a/drivers/parisc/ccio-dma.c
> @@ -555,7 +555,7 @@ static u32 hint_lookup[] = {
>   * (Load Coherence Index) instruction.  The 8 bits used for the virtual
>   * index are bits 12:19 of the value returned by LCI.
>   */ 
> -void CCIO_INLINE
> +static void CCIO_INLINE
>  ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
>  		   unsigned long hints)
>  {
> diff -puN drivers/parisc/dino.c~drivers-parisc-make-code-static drivers/parisc/dino.c
> --- a/drivers/parisc/dino.c~drivers-parisc-make-code-static
> +++ a/drivers/parisc/dino.c
> @@ -287,7 +287,7 @@ DINO_PORT_OUT(b,  8, 3)
>  DINO_PORT_OUT(w, 16, 2)
>  DINO_PORT_OUT(l, 32, 0)
>  
> -struct pci_port_ops dino_port_ops = {
> +static struct pci_port_ops dino_port_ops = {
>  	.inb	= dino_in8,
>  	.inw	= dino_in16,
>  	.inl	= dino_in32,
> @@ -690,7 +690,7 @@ dino_fixup_bus(struct pci_bus *bus)
>  }
>  
>  
> -struct pci_bios_ops dino_bios_ops = {
> +static struct pci_bios_ops dino_bios_ops = {
>  	.init		= dino_bios_init,
>  	.fixup_bus	= dino_fixup_bus
>  };
> diff -puN drivers/parisc/hppb.c~drivers-parisc-make-code-static drivers/parisc/hppb.c
> --- a/drivers/parisc/hppb.c~drivers-parisc-make-code-static
> +++ a/drivers/parisc/hppb.c
> @@ -29,7 +29,7 @@ struct hppb_card {
>  	struct hppb_card *next;
>  };
>  
> -struct hppb_card hppb_card_head = {
> +static struct hppb_card hppb_card_head = {
>  	.hpa = 0,
>  	.next = NULL,
>  };
> diff -puN drivers/parisc/lasi.c~drivers-parisc-make-code-static drivers/parisc/lasi.c
> --- a/drivers/parisc/lasi.c~drivers-parisc-make-code-static
> +++ a/drivers/parisc/lasi.c
> @@ -107,7 +107,7 @@ lasi_init_irq(struct gsc_asic *this_lasi
>  
>  #else
>  
> -void __init lasi_led_init(unsigned long lasi_hpa)
> +static void __init lasi_led_init(unsigned long lasi_hpa)
>  {
>  	unsigned long datareg;
>  
> @@ -163,8 +163,7 @@ static void lasi_power_off(void)
>  	gsc_writel(0x02, datareg);
>  }
>  
> -int __init
> -lasi_init_chip(struct parisc_device *dev)
> +static int __init lasi_init_chip(struct parisc_device *dev)
>  {
>  	extern void (*chassis_power_off)(void);
>  	struct gsc_asic *lasi;
> diff -puN drivers/parisc/lba_pci.c~drivers-parisc-make-code-static drivers/parisc/lba_pci.c
> --- a/drivers/parisc/lba_pci.c~drivers-parisc-make-code-static
> +++ a/drivers/parisc/lba_pci.c
> @@ -824,7 +824,7 @@ lba_fixup_bus(struct pci_bus *bus)
>  }
>  
>  
> -struct pci_bios_ops lba_bios_ops = {
> +static struct pci_bios_ops lba_bios_ops = {
>  	.init =		lba_bios_init,
>  	.fixup_bus =	lba_fixup_bus,
>  };
> diff -puN drivers/parisc/sba_iommu.c~drivers-parisc-make-code-static drivers/parisc/sba_iommu.c
> --- a/drivers/parisc/sba_iommu.c~drivers-parisc-make-code-static
> +++ a/drivers/parisc/sba_iommu.c
> @@ -561,7 +561,7 @@ typedef unsigned long space_t;
>   * IOMMU uses little endian for the pdir.
>   */
>  
> -void SBA_INLINE
> +static void SBA_INLINE
>  sba_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
>  		  unsigned long hint)
>  {
> @@ -1874,7 +1874,7 @@ static struct parisc_device_id sba_tbl[]
>  	{ 0, }
>  };
>  
> -int sba_driver_callback(struct parisc_device *);
> +static int sba_driver_callback(struct parisc_device *);
>  
>  static struct parisc_driver sba_driver = {
>  	.name =		MODULE_NAME,
> @@ -1887,8 +1887,7 @@ static struct parisc_driver sba_driver =
>  ** If so, initialize the chip and tell other partners in crime they
>  ** have work to do.
>  */
> -int
> -sba_driver_callback(struct parisc_device *dev)
> +static int sba_driver_callback(struct parisc_device *dev)
>  {
>  	struct sba_device *sba_dev;
>  	u32 func_class;
> diff -puN drivers/parisc/wax.c~drivers-parisc-make-code-static drivers/parisc/wax.c
> --- a/drivers/parisc/wax.c~drivers-parisc-make-code-static
> +++ a/drivers/parisc/wax.c
> @@ -68,8 +68,7 @@ wax_init_irq(struct gsc_asic *wax)
>  //	gsc_writel(0xFFFFFFFF, base+0x2000); /* RS232-B on Wax */
>  }
>  
> -int __init
> -wax_init_chip(struct parisc_device *dev)
> +static int __init wax_init_chip(struct parisc_device *dev)
>  {
>  	struct gsc_asic *wax;
>  	struct parisc_device *parent;
> _
--
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [patch 1/3] parisc/lib/: make code static
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On Mon, Dec 01, 2008 at 02:28:15PM -0800, akpm@linux-foundation.org wrote:
> From: Adrian Bunk <bunk@kernel.org>
> 
> Make the following needlessly global code static:
> 
> - iomap.c: struct iomap_ops[]
> - memcpy.c: pa_memcpy()
> 
> Signed-off-by: Adrian Bunk <bunk@kernel.org>
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: Matthew Wilcox <matthew@wil.cx>
> Cc: Grant Grundler <grundler@parisc-linux.org>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Reviewed-by: Grant Grundler <grundler@parisc-linux.org>

thanks,
grant

> ---
> 
>  arch/parisc/lib/iomap.c  |    2 +-
>  arch/parisc/lib/memcpy.c |    2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff -puN arch/parisc/lib/iomap.c~parisc-lib-make-code-static arch/parisc/lib/iomap.c
> --- a/arch/parisc/lib/iomap.c~parisc-lib-make-code-static
> +++ a/arch/parisc/lib/iomap.c
> @@ -261,7 +261,7 @@ static const struct iomap_ops iomem_ops 
>  	iomem_write32r,
>  };
>  
> -const struct iomap_ops *iomap_ops[8] = {
> +static const struct iomap_ops *iomap_ops[8] = {
>  	[0] = &ioport_ops,
>  	[7] = &iomem_ops
>  };
> diff -puN arch/parisc/lib/memcpy.c~parisc-lib-make-code-static arch/parisc/lib/memcpy.c
> --- a/arch/parisc/lib/memcpy.c~parisc-lib-make-code-static
> +++ a/arch/parisc/lib/memcpy.c
> @@ -275,7 +275,7 @@ handle_store_error:
>  
>  
>  /* Returns 0 for success, otherwise, returns number of bytes not transferred. */
> -unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
> +static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
>  {
>  	register unsigned long src, dst, t1, t2, t3;
>  	register unsigned char *pcs, *pcd;
> _
--
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From: Roel Kluin <roel.kluin@gmail.com>
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Subject: [PATCH] parisc: set_time() catch errors
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set_rtc_time returns negative on error, ret should be signed to catch those

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
index 346d633..c6bfa6f 100644
--- a/drivers/rtc/rtc-parisc.c
+++ b/drivers/rtc/rtc-parisc.c
@@ -34,7 +34,8 @@ static int parisc_get_time(struct device *dev, struct rtc_time *tm)
 static int parisc_set_time(struct device *dev, struct rtc_time *tm)
 {
 	struct parisc_rtc *p = dev_get_drvdata(dev);
-	unsigned long flags, ret;
+	unsigned long flags;
+	int ret;
 
 	spin_lock_irqsave(&p->lock, flags);
 	ret = set_rtc_time(tm);
--
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On Wed, Dec 03, 2008 at 12:16:04AM +0100, Roel Kluin wrote:
> set_rtc_time returns negative on error, ret should be signed to catch those
> 
> Signed-off-by: Roel Kluin <roel.kluin@gmail.com>

Reviewed-by: Grant Grundler <grundler@parisc-linux.org>

> ---
> diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
> index 346d633..c6bfa6f 100644
> --- a/drivers/rtc/rtc-parisc.c
> +++ b/drivers/rtc/rtc-parisc.c
> @@ -34,7 +34,8 @@ static int parisc_get_time(struct device *dev, struct rtc_time *tm)
>  static int parisc_set_time(struct device *dev, struct rtc_time *tm)
>  {
>  	struct parisc_rtc *p = dev_get_drvdata(dev);
> -	unsigned long flags, ret;
> +	unsigned long flags;
> +	int ret;
>  
>  	spin_lock_irqsave(&p->lock, flags);
>  	ret = set_rtc_time(tm);


Use of unsigned is wrong given the later code in parisc_set_time() does:
        if (ret < 0)
                return -EOPNOTSUPP;


I expected a compiler "out of range"-like warning.
Someone know why no warning was emitted?
Or was one emitted and we've just ignored it?

thanks,
grant
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From - Thu Nov 08 21:03:04 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] 2.6.28-rc6 update parisc MAINTAINERS
Date: Wed, 3 Dec 2008 01:22:39 -0700
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Cc: Grant Grundler <grundler@parisc-linux.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-parisc@vger.kernel.org, kyle@hera.kernel.org,
	randolph@tausq.org, stable@kernel.org
To: Helge Deller <deller@gmx.de>
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On Mon, Dec 01, 2008 at 04:59:02PM +0100, Helge Deller wrote:
> Grant Grundler wrote:
...
>> Updated version of this patch: I'm removing my own name as well for some 
>> of the same reasons as willy. 
>
> Grant, even if you are currently only occasionally fixing bugs or reviewing 
> patches, I think it would still be valuable to keep you listed here as one 
> of the parisc maintainers.

Helge,
Thanks!

But it sounds a bit biased coming from you given I just nominated
you to be listed as maintainer. :)

"occasionally fixing bugs" is generous with respect to parisc-linux.
I've prevented a few bugs this year (code review) and substantially helped
the Intel IOMMU driver maintainer code (on linux-pci). But those aren't
reasons to be listed as parisc-linux maintainer.

I will continue to review parisc-linux patches and occasionally work
on "porting" autotest.kernel.org to parisc-linux. I think that would
help the port to avoid regressions. I'm just not able (time and ability)
to fix the latest major issue which we've been guessing is cache
coherency related.

thanks,
grant
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From: Helge Deller <deller@gmx.de>
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>, gmsoft@tuxicoman.be,
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	linux-parisc@vger.kernel.org
To: Thibaut VARENE <T-Bone@parisc-linux.org>
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Thibaut VARENE wrote:
> On Tue, Dec 2, 2008 at 1:00 AM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> 
>> Are there some standard 32 and 64 bit defines for format strings?  Or, do we
>> always want 16 hex digits?
> 
> In traps.c we used to do this for the regs dump:
> 
> #ifdef __LP64__
> #define RFMT "%016lx"
> #else
> #define RFMT "%08lx"
> #endif
> 
> and then sprintf(p, " " RFMT, (i+j) == 0 ? 0 : regs->gr[i + j]);
> 
> I guess a similar trick could do, to some extent?

An alternative possibility would be to use pointers, e.g.
printk("addr 0x%p\n", (void *)x);
That way it would 32 or 64bit addresses, depending if we have a 32 or 
64bit kernel.

Helge
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From - Thu Nov 08 21:03:04 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: patchwork running on linux-parisc@
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I've enabled a patchwork installation, hopefully I won't miss any more
patches posted on the list now. Please ensure all patches destined for
the kernel hit the mailing list, so they get archived by patchwork...

	http://patchwork.cabal.ca/project/linux-parisc/list/

As soon as I get these git commithooks sorted we'll have proper commit
notifications to the list as well, although that's slightly more
complicated unless you want gigantic spews when I pull Linus' tree. :(

regards, Kyle
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From - Thu Nov 08 21:03:04 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: parisc: fix ipv6 checksum
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ipv6 recently started exhibiting the same symptoms as ipv4 was, add
a memory clobber around inline checksum assembly that fribbles memory
to ensure gcc doesn't erroneously cache across it.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
---
 arch/parisc/include/asm/checksum.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/include/asm/checksum.h b/arch/parisc/include/asm/checksum.h
index e9639cc..c84b2fc 100644
--- a/arch/parisc/include/asm/checksum.h
+++ b/arch/parisc/include/asm/checksum.h
@@ -182,7 +182,7 @@ static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
 #endif
 	: "=r" (sum), "=r" (saddr), "=r" (daddr), "=r" (len)
 	: "0" (sum), "1" (saddr), "2" (daddr), "3" (len), "r" (proto)
-	: "r19", "r20", "r21", "r22");
+	: "r19", "r20", "r21", "r22", "memory");
 	return csum_fold(sum);
 }
 
-- 
1.6.0.3

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New commits:
commit 94b5339dbe820cf874e826c3c9bb62493bb4da7f
Author: Roel Kluin <roel.kluin@gmail.com>
Date:   Wed Dec 3 04:16:04 2008 +0000

    parisc: set_time() catch errors
    
    set_rtc_time returns negative on error, ret should be signed to catch those
    
    Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
    Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit e4fdb8c6aae569fec4c68c76fc0cdaa23ba9c77d
Author: Harvey Harrison <harvey.harrison@gmail.com>
Date:   Tue Dec 2 03:28:17 2008 +0000

    parisc: use the new byteorder headers
    
    Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
    Cc: Matthew Wilcox <willy@debian.org>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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Subject: [git] parisc: Changes to ref refs/heads/master
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New commits:
commit da8e3b106c259f1ef791d99cb153c172583d9aa7
Author: Adrian Bunk <bunk@kernel.org>
Date:   Tue Dec 2 03:28:16 2008 +0000

    parisc: drivers/parisc/: make code static
    
    Make the following needlessly global code static:
    
    - asp.c: asp_init_chip()
    - ccio-dma.c: ccio_io_pdir_entry()
    - dino.c: struct dino_port_ops
    - dino.c: struct dino_bios_ops
    - hppb.c: struct hppb_card_head
    - lasi.c: lasi_led_init()
    - lasi.c: lasi_init_chip()
    - lba_pci.c: struct lba_bios_ops
    - sba_iommu.c: sba_io_pdir_entry()
    - sba_iommu.c: sba_driver_callback()
    - sba_iommu.c: sba_driver_callback()
    - wax.c: wax_init_chip()
    
    Signed-off-by: Adrian Bunk <bunk@kernel.org>
    Cc: Matthew Wilcox <matthew@wil.cx>
    Cc: Grant Grundler <grundler@parisc-linux.org>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>


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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: parisc: quiet palo not-found message from "which"
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Reduces moaning when building on a machine without palo installed.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
---
 arch/parisc/Makefile |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5ddad7b..0d42827 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -77,7 +77,7 @@ libs-y	+= arch/parisc/lib/ `$(CC) -print-libgcc-file-name`
 
 drivers-$(CONFIG_OPROFILE)		+= arch/parisc/oprofile/
 
-PALO := $(shell if which palo; then : ; \
+PALO := $(shell if (which palo 2>&1); then : ; \
 	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
 	fi)
 
-- 
1.5.6.5

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Subject: parisc: fix io accessors for generic byteorder.h
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These were using __fswabX which is marooned in <linux/byteorder/swab.h>
instead we'll just use the __arch_swabX defines from <asm/byteorder.h>

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
---
 arch/parisc/include/asm/io.h |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 55ddb18..6943135 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -2,6 +2,7 @@
 #define _ASM_IO_H
 
 #include <linux/types.h>
+#include <asm/byteorder.h>
 #include <asm/pgtable.h>
 
 extern unsigned long parisc_vmerge_boundary;
@@ -180,11 +181,10 @@ static inline void __raw_writeq(unsigned long long b, volatile void __iomem *add
 	*(volatile unsigned long long __force *) addr = b;
 }
 
-/* readb can never be const, so use __fswab instead of le*_to_cpu */
 #define readb(addr) __raw_readb(addr)
-#define readw(addr) __fswab16(__raw_readw(addr))
-#define readl(addr) __fswab32(__raw_readl(addr))
-#define readq(addr) __fswab64(__raw_readq(addr))
+#define readw(addr) __arch_swab16(__raw_readw(addr))
+#define readl(addr) __arch_swab32(__raw_readl(addr))
+#define readq(addr) __arch_swab64(__raw_readq(addr))
 #define writeb(b, addr) __raw_writeb(b, addr)
 #define writew(b, addr) __raw_writew(cpu_to_le16(b), addr)
 #define writel(b, addr) __raw_writel(cpu_to_le32(b), addr)
-- 
1.5.6.5

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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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> Given your earlier comments it would seen the segfault is not
> reproducible and happens often and randomly?

I gave 2.6.28-rc7-git5 a try this evening.  Hit the same error.
While its occurence may be random, the identical fault occurred
multiple times in a short period of testing.

I see this bit of code in _dl_fixup:

0x401ed464 <_dl_fixup+172>:	mfctl tr3,r21
0x401ed468 <_dl_fixup+176>:	ldw -3e0(r21),ret0
0x401ed46c <_dl_fixup+180>:	cmpib,<> 0,ret0,0x401ed628 <_dl_fixup+624>

and

0x401ed5fc <_dl_fixup+580>:	ldi 1,r24
0x401ed600 <_dl_fixup+584>:	ldi 0,r23
0x401ed604 <_dl_fixup+588>:	mfctl tr3,r26
0x401ed608 <_dl_fixup+592>:	copy r24,r25
0x401ed60c <_dl_fixup+596>:	ldo -3dc(r26),r26
0x401ed610 <_dl_fixup+600>:	copy r19,r4
0x401ed614 <_dl_fixup+604>:	be,l 100(sr2,r0),sr0,r31
0x401ed618 <_dl_fixup+608>:	ldi d2,r20

So, the code is using the thread register (cr27).  Not sure what syscall
this is.  However, the problem might be TLS releated.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, 2008-12-07 at 23:43 -0500, Kyle McMartin wrote:
> These were using __fswabX which is marooned in <linux/byteorder/swab.h>
> instead we'll just use the __arch_swabX defines from <asm/byteorder.h>
> 

Sorry I missed this usage :-/

Any reason not to just use __swab16 __swab32 __swab64?  I'd like to keep
the __arch helpers confined to swab.h only.

Cheers,

Harvey

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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: parisc: fix io accessors for generic byteorder.h
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To: Harvey Harrison <harvey.harrison@gmail.com>
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On Sun, Dec 07, 2008 at 08:55:59PM -0800, Harvey Harrison wrote:
> On Sun, 2008-12-07 at 23:43 -0500, Kyle McMartin wrote:
> > These were using __fswabX which is marooned in <linux/byteorder/swab.h>
> > instead we'll just use the __arch_swabX defines from <asm/byteorder.h>
> > 
> 
> Sorry I missed this usage :-/
> 
> Any reason not to just use __swab16 __swab32 __swab64?  I'd like to keep
> the __arch helpers confined to swab.h only.
> 

Not particularly, I believe the idea of using fswabX was to Make Damned
Sure(tm) that gcc wouldn't eliminate the expression by being too smart
for its own good. It's probably fine now, though I have half a mind to
just fold it in.
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From - Thu Nov 08 21:03:05 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
	Helge Deller <deller@gmx.de>, gmsoft@tuxicoman.be,
	carlos@systemhalted.org, grundler@parisc-linux.org,
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To: Thibaut VARENE <T-Bone@parisc-linux.org>
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On Mon, Dec 01, 2008 at 11:54:25AM +0100, Thibaut VARENE wrote:
> On Tue, Dec 2, 2008 at 1:00 AM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> 
> >
> > Are there some standard 32 and 64 bit defines for format strings?  Or, do we
> > always want 16 hex digits?
> 
> In traps.c we used to do this for the regs dump:
> 
> #ifdef __LP64__
> #define RFMT "%016lx"
> #else
> #define RFMT "%08lx"
> #endif
> 
> and then sprintf(p, " " RFMT, (i+j) == 0 ? 0 : regs->gr[i + j]);
> 
> I guess a similar trick could do, to some extent?

The prettiest way to do it would be to add a %p handler for
resource_size_t args, cheat on the pointing bit, and clean up the
in-tree users of %llx/ull-casts.
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From - Thu Nov 08 21:03:05 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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On Sun, Dec 07, 2008 at 07:08:58PM -0500, Kyle McMartin wrote:
> I've enabled a patchwork installation, hopefully I won't miss any more
> patches posted on the list now. Please ensure all patches destined for
> the kernel hit the mailing list, so they get archived by patchwork...
> 
> 	http://patchwork.cabal.ca/project/linux-parisc/list/

Kyle - this is awesome! Thanks!

grant

> 
> As soon as I get these git commithooks sorted we'll have proper commit
> notifications to the list as well, although that's slightly more
> complicated unless you want gigantic spews when I pull Linus' tree. :(
> 
> regards, Kyle
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From: Harvey Harrison <harvey.harrison@gmail.com>
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Subject: Re: parisc: fix io accessors for generic byteorder.h
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On Sun, 2008-12-07 at 23:58 -0500, Kyle McMartin wrote:
> On Sun, Dec 07, 2008 at 08:55:59PM -0800, Harvey Harrison wrote:
> > On Sun, 2008-12-07 at 23:43 -0500, Kyle McMartin wrote:
> > > These were using __fswabX which is marooned in <linux/byteorder/swab.h>
> > > instead we'll just use the __arch_swabX defines from <asm/byteorder.h>
> > > 
> > 
> > Sorry I missed this usage :-/
> > 
> > Any reason not to just use __swab16 __swab32 __swab64?  I'd like to keep
> > the __arch helpers confined to swab.h only.
> > 
> 
> Not particularly, I believe the idea of using fswabX was to Make Damned
> Sure(tm) that gcc wouldn't eliminate the expression by being too smart
> for its own good. It's probably fine now, though I have half a mind to
> just fold it in.

By fold it in, I take it to mean, write them as static inlines rather
than macros, if so, I definitely approve.

Harvey

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On Sun, Dec 07, 2008 at 11:50:02PM -0500, John David Anglin wrote:
> > Given your earlier comments it would seen the segfault is not
> > reproducible and happens often and randomly?
> 
> I gave 2.6.28-rc7-git5 a try this evening.  Hit the same error.
> While its occurence may be random, the identical fault occurred
> multiple times in a short period of testing.

I routinely get a segfault the first time I attempt to compile linux-2.6
kernel after reboot.  If I "find linux-2.6 | xargs cksum", the kernel
builds fine.

> I see this bit of code in _dl_fixup:
> 
> 0x401ed464 <_dl_fixup+172>:	mfctl tr3,r21
> 0x401ed468 <_dl_fixup+176>:	ldw -3e0(r21),ret0
> 0x401ed46c <_dl_fixup+180>:	cmpib,<> 0,ret0,0x401ed628 <_dl_fixup+624>
> 
> and
> 
> 0x401ed5fc <_dl_fixup+580>:	ldi 1,r24
> 0x401ed600 <_dl_fixup+584>:	ldi 0,r23
> 0x401ed604 <_dl_fixup+588>:	mfctl tr3,r26
> 0x401ed608 <_dl_fixup+592>:	copy r24,r25
> 0x401ed60c <_dl_fixup+596>:	ldo -3dc(r26),r26
> 0x401ed610 <_dl_fixup+600>:	copy r19,r4
> 0x401ed614 <_dl_fixup+604>:	be,l 100(sr2,r0),sr0,r31
> 0x401ed618 <_dl_fixup+608>:	ldi d2,r20
> 
> So, the code is using the thread register (cr27).  Not sure what syscall
> this is.  However, the problem might be TLS releated.

I have no idea if TLS makes a difference to kernel builds.

thanks,
grant
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On Sun, Dec 7, 2008 at 11:50 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> Given your earlier comments it would seen the segfault is not
>> reproducible and happens often and randomly?
>
> I gave 2.6.28-rc7-git5 a try this evening.  Hit the same error.
> While its occurence may be random, the identical fault occurred
> multiple times in a short period of testing.
>
> I see this bit of code in _dl_fixup:
>
> 0x401ed464 <_dl_fixup+172>:     mfctl tr3,r21
> 0x401ed468 <_dl_fixup+176>:     ldw -3e0(r21),ret0
> 0x401ed46c <_dl_fixup+180>:     cmpib,<> 0,ret0,0x401ed628 <_dl_fixup+624>
>
> and
>
> 0x401ed5fc <_dl_fixup+580>:     ldi 1,r24
> 0x401ed600 <_dl_fixup+584>:     ldi 0,r23
> 0x401ed604 <_dl_fixup+588>:     mfctl tr3,r26
> 0x401ed608 <_dl_fixup+592>:     copy r24,r25
> 0x401ed60c <_dl_fixup+596>:     ldo -3dc(r26),r26
> 0x401ed610 <_dl_fixup+600>:     copy r19,r4
> 0x401ed614 <_dl_fixup+604>:     be,l 100(sr2,r0),sr0,r31
> 0x401ed618 <_dl_fixup+608>:     ldi d2,r20
>
> So, the code is using the thread register (cr27).  Not sure what syscall
> this is.  However, the problem might be TLS releated.

The thread register has always been used to track thread specific
information, even in linuxthreads.

The syscall is __NR_futex.

If you can produce a synthetic testcase that calls __NR_futex and
crashes the kernel then we'll have something for the kernel hackers to
look at?

Cheers,
Carlos.
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From - Thu Nov 08 21:03:05 2018
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On Mon, Dec 8, 2008 at 12:46 AM, Grant Grundler
<grundler@parisc-linux.org> wrote:
> On Sun, Dec 07, 2008 at 07:08:58PM -0500, Kyle McMartin wrote:
>> I've enabled a patchwork installation, hopefully I won't miss any more
>> patches posted on the list now. Please ensure all patches destined for
>> the kernel hit the mailing list, so they get archived by patchwork...
>>
>>       http://patchwork.cabal.ca/project/linux-parisc/list/
>
> Kyle - this is awesome! Thanks!

Really very cool!

Cheers,
Carlos.
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From - Thu Nov 08 21:03:06 2018
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> > So, the code is using the thread register (cr27).  Not sure what syscall
> > this is.  However, the problem might be TLS releated.
> 
> The thread register has always been used to track thread specific
> information, even in linuxthreads.
> 
> The syscall is __NR_futex.
> 
> If you can produce a synthetic testcase that calls __NR_futex and
> crashes the kernel then we'll have something for the kernel hackers to
> look at?

How long have futex's been used on hppa?  I guess we really need to try
run the glibc testsuite on a new kernel.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Dec 8, 2008 at 9:54 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> > So, the code is using the thread register (cr27).  Not sure what syscall
>> > this is.  However, the problem might be TLS releated.
>>
>> The thread register has always been used to track thread specific
>> information, even in linuxthreads.
>>
>> The syscall is __NR_futex.
>>
>> If you can produce a synthetic testcase that calls __NR_futex and
>> crashes the kernel then we'll have something for the kernel hackers to
>> look at?
>
> How long have futex's been used on hppa?  I guess we really need to try
> run the glibc testsuite on a new kernel.

The futex function has been available almost since futex's first appeared

The futex API is exported to userspace and can be used by any application.

e.g. man futex
~~~
NAME
       futex - Fast Userspace Locking system call

SYNOPSIS
       #include <linux/futex.h>
       #include <sys/time.h>

       int futex(int *uaddr, int op, int val, const struct timespec *timeout,
                 int *uaddr2, int val3);
~~~

Yes, the glibc testsuite is one of the best ways to exercise a lot of
kernel syscalls.

Cheers,
Carlos.
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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> On Sun, Dec 07, 2008 at 11:50:02PM -0500, John David Anglin wrote:
> > > Given your earlier comments it would seen the segfault is not
> > > reproducible and happens often and randomly?
> > 
> > I gave 2.6.28-rc7-git5 a try this evening.  Hit the same error.
> > While its occurence may be random, the identical fault occurred
> > multiple times in a short period of testing.
> 
> I routinely get a segfault the first time I attempt to compile linux-2.6
> kernel after reboot.  If I "find linux-2.6 | xargs cksum", the kernel
> builds fine.

Actually, my first segfault with 2.6.28-rc7-git5 was in the initial boot
in mountnfs.  I rebooted and it didn't reoccur.  Again, this was a page
fault:

do_page_fault() pid=3502 command='mountnfs' type=15 address=0x00000364

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Tainted: G        W
r00-03  000000ff0004ff0f 00000000fb3a9ee8 0000000040213b5b 00000000000cf6a0
r04-07  0000000000000000 0000000000000360 00000000000e0c28 00000000000e08a8
...
IASQ: 0000000000621800 0000000000621800 IAOQ: 000000004020d40f 000000004020d413
 IIR: 0ca81095    ISR: 0000000000621800  IOR: 0000000000000364
 CPU:        1   CR30: 000000007e084000 CR31: ffffffffffffffff

dave@hiauly6:~/opt/gnu/bin$ disasm 0x0ca81095
   0:   0c a8 10 95     ldw 4(r5),r21

Sometimes I have the feeling that with 2.6.22.19) you get one segfault
and then it runs normally for a long time.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> The prettiest way to do it would be to add a %p handler for
> resource_size_t args, cheat on the pointing bit, and clean up the
> in-tree users of %llx/ull-casts.

I went through the warnings that I saw yesterday implementing Helge's
%p suggestion.  It's not beautiful but it works.   I'll post tonight.

I only fixed the occurences that popped up in my build.  I'm sure that
more are lurking.

Feel free to implement %p handler.

I also fixed some other warnings and will post for comment when I separate
the diffs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > How long have futex's been used on hppa?  I guess we really need to try
> > run the glibc testsuite on a new kernel.
> 
> The futex function has been available almost since futex's first appeared
> 
> The futex API is exported to userspace and can be used by any application.
> 
> e.g. man futex
> ~~~
> NAME
>        futex - Fast Userspace Locking system call

This is only supposition but a broken futex call might cause the type of
problems we are seeing.

Dave
-- 
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On Mon, Dec 08, 2008 at 10:23:28AM -0500, John David Anglin wrote:
> > The prettiest way to do it would be to add a %p handler for
> > resource_size_t args, cheat on the pointing bit, and clean up the
> > in-tree users of %llx/ull-casts.
> 
> I went through the warnings that I saw yesterday implementing Helge's
> %p suggestion.  It's not beautiful but it works.   I'll post tonight.
> 
> I only fixed the occurences that popped up in my build.  I'm sure that
> more are lurking.
> 
> Feel free to implement %p handler.
> 
> I also fixed some other warnings and will post for comment when I separate
> the diffs.
> 

sadly %p can't work, since void * doesn't hold resource_size_t with
CONFIG_RESOURCES_64BIT on 32-bit, since resource_size_t would be ULL,
which is why the %p handler would work (although you'd either have to
pass &(resource_size_t) or do a bit of ick around the va_args to snatch
the correct width instead of just void *).

but yeah, that's a global kernel issue, not limited to our little niche.

i'll apply your patch, and another one to make CONFIG_RESOURCES_64BIT
depend on !PARISC, since it really only applies to PAE on x86 and some
niche crap embeddeded powerpc.

cheers, kyle
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> sadly %p can't work, since void * doesn't hold resource_size_t with
> CONFIG_RESOURCES_64BIT on 32-bit, since resource_size_t would be ULL,
> which is why the %p handler would work (although you'd either have to
> pass &(resource_size_t) or do a bit of ick around the va_args to snatch
> the correct width instead of just void *).

Sigh, you are right.  However, all the warnings apply to addresses,
so I think the type for these addresses is wrong.  I can't really
imagine a 32-bit kernel running with a 64-bit address space would
be useful.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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From - Thu Nov 08 21:03:06 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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On Mon, Dec 08, 2008 at 10:57:54AM -0500, John David Anglin wrote:
> > sadly %p can't work, since void * doesn't hold resource_size_t with
> > CONFIG_RESOURCES_64BIT on 32-bit, since resource_size_t would be ULL,
> > which is why the %p handler would work (although you'd either have to
> > pass &(resource_size_t) or do a bit of ick around the va_args to snatch
> > the correct width instead of just void *).
> 
> Sigh, you are right.  However, all the warnings apply to addresses,
> so I think the type for these addresses is wrong.  I can't really
> imagine a 32-bit kernel running with a 64-bit address space would
> be useful.
> 

Exactly, the config option (in the 64-bit on 32-bit sense) is limited in
utility to PAE on x86, where the physical address space is really
36-bit, (and they cheat by using double-sized ptes to cram in a 64-bit
address.) Last time I tried to submit a patch to make it automatic in
Kconfig it was met with resounding bikeshedding.
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From - Thu Nov 08 21:03:06 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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On Mon, Dec 08, 2008 at 11:00:21AM -0500, Kyle McMartin wrote:
> On Mon, Dec 08, 2008 at 10:57:54AM -0500, John David Anglin wrote:
> > > sadly %p can't work, since void * doesn't hold resource_size_t with
> > > CONFIG_RESOURCES_64BIT on 32-bit, since resource_size_t would be ULL,
> > > which is why the %p handler would work (although you'd either have to
> > > pass &(resource_size_t) or do a bit of ick around the va_args to snatch
> > > the correct width instead of just void *).
> > 
> > Sigh, you are right.  However, all the warnings apply to addresses,
> > so I think the type for these addresses is wrong.  I can't really
> > imagine a 32-bit kernel running with a 64-bit address space would
> > be useful.
> > 
> 
> Exactly, the config option (in the 64-bit on 32-bit sense) is limited in
> utility to PAE on x86, where the physical address space is really
> 36-bit, (and they cheat by using double-sized ptes to cram in a 64-bit
> address.) Last time I tried to submit a patch to make it automatic in
> Kconfig it was met with resounding bikeshedding.
> 

To reiterate though, I'm not at all adverse to making this option just
go away on parisc32...
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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On Mon, Dec 8, 2008 at 10:02 AM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> On Mon, Dec 8, 2008 at 9:54 AM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
>>> > So, the code is using the thread register (cr27).  Not sure what syscall
>>> > this is.  However, the problem might be TLS releated.
>>>
>>> The thread register has always been used to track thread specific
>>> information, even in linuxthreads.
>>>
>>> The syscall is __NR_futex.
>>>
>>> If you can produce a synthetic testcase that calls __NR_futex and
>>> crashes the kernel then we'll have something for the kernel hackers to
>>> look at?
>>
>> How long have futex's been used on hppa?  I guess we really need to try
>> run the glibc testsuite on a new kernel.
>
> The futex function has been available almost since futex's first appeared

I realized I didn't answer your question here.

The futex function should only be called when compiling glibc with nptl enabled.

Otherwise nothing in glibc should make futex calls.

Broken futex calls shouldn't crash the kernel.

Cheers,
Carlos.
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From - Thu Nov 08 21:03:06 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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> >> How long have futex's been used on hppa?  I guess we really need to try
> >> run the glibc testsuite on a new kernel.
> >
> > The futex function has been available almost since futex's first appeared
> 
> I realized I didn't answer your question here.
> 
> The futex function should only be called when compiling glibc with nptl enabled.
> 
> Otherwise nothing in glibc should make futex calls.
> 
> Broken futex calls shouldn't crash the kernel.

The kernel doesn't crash since Helge's stack backtrace fix.  We are
just getting a lot of segfaults in application code.

I'm fairly certain libc6 in debian testing is still built with linuxthreads.
I'm not sure libc is actually making futex calls, but one is compiled
into _dl_fixup.  I suppose I could add a printk in the kernel to see
if futex's are being used.

I'm currently building debian libc6.  In a quick attempt, I wasn't
successful in building the glibc cvs source.  It pushes hard to get
you to configure with nptl.  My build with linuxthreads failed with
a type size problem.

I'll try the testsuite with this build on my current kernel.  If that
works, I'll flip to 2.6.28.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Instead of continuing the thread named "2.6.28-rcX in pretty bad shape
on parisc" I think it makes sense to start a new thread with this bug,
as I think that it different to the one which Dave and Carlos face.

While compiling some larger piece of code, I'm reproducible facing this
kernel lock-up.
-----------
BUG: soft lockup - CPU#0 stuck for 61s! [tool:3582]
Modules linked in: snd_ad1889 snd_ac97_codec snd_pcm_oss snd_pcm
snd_mixer_oss snd_seq_oss snd_seq_midi_event snd_seq snd_timer
snd_seq_device snd soundcore snd_page_alloc ac97_bus

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111 Not tainted
r00-03  0004000f 105edf50 102a0428 00000000
r04-07  17c78000 105df000 00000000 00069cb9
r08-11  00000000 7c268b88 7eedf22c 104876ac
r12-15  10616ac0 106332c0 00000005 fb6f3a88
r16-19  7c2683c0 0000000a fb6f3e60 00000000
r20-23  ffffffff 00000000 12adac36 102f0794
r24-27  ffffffff 10542c50 105edfa0 105db2c0
r28-31  00000004 00000190 7c268e40 1011c7a0
sr00-03  00000000 00000000 00000000 00000283
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 102a031c 102a0320
 IIR: 80969f45    ISR: 00000000  IOR: 1010fc5c
 CPU:        0   CR30: 7c268000 CR31: 11111111
 ORIG_R28: 00000000
 IAOQ[0]: __spin_lock_debug+0x9c/0x140
 IAOQ[1]: __spin_lock_debug+0xa0/0x140
 RP(r2): _raw_spin_lock+0x68/0xa8
Backtrace:
 [<102a0428>] _raw_spin_lock+0x68/0xa8
 [<1010eac4>] flush_kernel_dcache_page_addr+0x20/0x3c
 [<1010e864>] flush_dcache_page+0x80/0x204
 [<104878c8>] xdr_partial_copy_from_skb+0x108/0x21c
 [<10488ecc>] xs_tcp_data_recv+0x394/0x49c
 [<1044875c>] tcp_read_sock+0xe0/0x240
 [<10489038>] xs_tcp_data_ready+0x64/0xa4
 [<10451230>] tcp_rcv_established+0x394/0x534
 [<104585fc>] tcp_v4_do_rcv+0x108/0x110
 [<10458b18>] tcp_v4_rcv+0x514/0x620
 [<1043d010>] ip_local_deliver_finish+0xc8/0x1a4
 [<1043d288>] ip_rcv_finish+0x14c/0x2fc
 [<10420d40>] netif_receive_skb+0x174/0x280
 [<10420f60>] process_backlog+0x8c/0x118
 [<104211b4>] net_rx_action+0x18c/0x1b8
 [<1013a8a4>] __do_softirq+0x108/0x14c

Kernel panic - not syncing: softlockup: hung tasks
----

This is a 32bit 2.6.28-rcX (X=1-7) kernel on a c3000 (single-cpu), but I
saw the same problem already on 2.6.27 as well.
I've tried to narrow it down with strace, but then I couldn't reproduce
the lockups.

Looking at the backtrace my assumption is, that it deadlocks on the
pa_tlb_lock spinlock (defined in arch/parisc/kernel/cache.c).
But it's still unclear to me, how this spinlock is getting stuck forever.

Currently I'm playing with the attached patch. It's just an RFC since I
noticed, that the assembler function __clear_user_page_asm() does not
provide any exception fixups yet.
My thinking is, that maybe __clear_user_page_asm() crashes due to
invalid userspace access, and then the pa_tlb_lock spinlock just stays
locked.
I'm not sure if it is even correct behavior that __clear_user_page_asm()
might be called with invalid userspace regions, but due to the different
kmap_atomic() function implementation with pagefault_disable() and
pagefault_enable() calls (see further details below) I'm under the
impression, that we need to add exception fixups.
I'd be very interested to know, if you others think that my assumption
is correct?


kmap_atomic() and pagefault_[en|dis]able:
32bit and 64bit kernels differ in the implementation of the kmap_XX()
functions [see arch/parisc/include/asm/cacheflush.h vs.
include/linux/highmem.h], which are utilized by the above networking
functions.
The standard kmap_atomic() function (used in 32bit parisc kernels) in
include/linux/highmem.h calls pagefault_dis|enable(), while the 64bit
parisc implementation doesn't (although it adds cache flushing if
parisc_requires_coherency() evaluates to true on 64bit).



diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 5259d8c..5759b3e 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -396,14 +396,23 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);

+/* Those functions are implemented in assembly in pacache.S */
+extern void purge_kernel_dcache_page(unsigned long);
+extern int __clear_user_page_asm(void *page, unsigned long vaddr);
+
 void clear_user_page_asm(void *page, unsigned long vaddr)
 {
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
+	int error;

+	/* if (!preempt_count()) */
 	purge_tlb_start();
-	__clear_user_page_asm(page, vaddr);
+
+	error = __clear_user_page_asm(page, vaddr);
+
+	/* if (!preempt_count()) */
 	purge_tlb_end();
+
+	WARN_ON(error);
 }

 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
@@ -439,9 +448,6 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs
online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }

-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
-
 void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 {
 	purge_kernel_dcache_page((unsigned long)page);
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 09b77b2..f00e93a 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -26,6 +26,8 @@
  *       can be used.
  */

+#include <asm/errno.h>
+
 #ifdef CONFIG_64BIT
 	.level	2.0w
 #else
@@ -559,7 +561,7 @@ ENTRY(__clear_user_page_asm)
 	/* #define	PREFETCHW_OP	ldd		256(%0), %r0 */

 1:	std		%r0, 0(%r28)
-	std		%r0, 8(%r28)
+2:	std		%r0, 8(%r28)
 	std		%r0, 16(%r28)
 	std		%r0, 24(%r28)
 	std		%r0, 32(%r28)
@@ -580,9 +582,8 @@ ENTRY(__clear_user_page_asm)
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1

-1:
-	stw		%r0, 0(%r28)
-	stw		%r0, 4(%r28)
+1:	stw		%r0, 0(%r28)
+2:	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
 	stw		%r0, 12(%r28)
 	stw		%r0, 16(%r28)
@@ -602,12 +603,25 @@ ENTRY(__clear_user_page_asm)
 #endif	/* CONFIG_64BIT */

 	bv		%r0(%r2)
-	nop
+	copy		%r0, %ret0	/* return no error */
 	.exit

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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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On Mon, Dec 8, 2008 at 5:39 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> Otherwise nothing in glibc should make futex calls.
>>
>> Broken futex calls shouldn't crash the kernel.
>
> The kernel doesn't crash since Helge's stack backtrace fix.  We are
> just getting a lot of segfaults in application code.

Excellent. That is certainly progress.

> I'm fairly certain libc6 in debian testing is still built with linuxthreads.
> I'm not sure libc is actually making futex calls, but one is compiled
> into _dl_fixup.  I suppose I could add a printk in the kernel to see
> if futex's are being used.

Yes, your assembly dump shows a futex syscall in _dl_fixup, and AFAIK
there should not be one there.

I used printk *very* effectively in the kernel/futex.c code to debug
futex issues with the NPTL bringup.

Remember that the futex is essentially the address of the userspace
object, so it's rather easy to trace.

> I'm currently building debian libc6.  In a quick attempt, I wasn't
> successful in building the glibc cvs source.  It pushes hard to get
> you to configure with nptl.  My build with linuxthreads failed with
> a type size problem.
>
> I'll try the testsuite with this build on my current kernel.  If that
> works, I'll flip to 2.6.28.

Thanks, please keep me posted.

Cheers,
Carlos.
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On Mon, Dec 08, 2008 at 11:00:51AM -0500, Kyle McMartin wrote:
>

Something like this was what I had in mind... seems to (x)compile,
haven't actually run-time tested it. Kills the warnings, at least. ;-)

Needs some more thinking before I might hit upstream with it.

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index dcc1e99..ccb7858 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1551,7 +1551,7 @@ static int __init ccio_probe(struct parisc_device *dev)
 
 	ioc->name = dev->id.hversion == U2_IOA_RUNWAY ? "U2" : "UTurn";
 
-	printk(KERN_INFO "Found %s at 0x%lx\n", ioc->name, dev->hpa.start);
+	printk(KERN_INFO "Found %s at %pZ\n", ioc->name, &(dev->hpa.start));
 
 	for (i = 0; i < ioc_count; i++) {
 		ioc_p = &(*ioc_p)->next;
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index a28c894..0221545 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1413,8 +1413,8 @@ lba_driver_probe(struct parisc_device *dev)
 		default: version = "TR4+";
 		}
 
-		printk(KERN_INFO "Elroy version %s (0x%x) found at 0x%lx\n",
-		       version, func_class & 0xf, (long)dev->hpa.start);
+		printk(KERN_INFO "Elroy version %s (0x%x) found at %pZ\n",
+		       version, func_class & 0xf, &(dev->hpa.start));
 
 		if (func_class < 2) {
 			printk(KERN_WARNING "Can't support LBA older than "
@@ -1442,14 +1442,14 @@ lba_driver_probe(struct parisc_device *dev)
 		/* We could use one printk for both Elroy and Mercury,
                  * but for the mask for func_class.
                  */ 
-		printk(KERN_INFO "%s version TR%d.%d (0x%x) found at 0x%lx\n",
+		printk(KERN_INFO "%s version TR%d.%d (0x%x) found at %pZ\n",
 		       IS_MERCURY(dev) ? "Mercury" : "Quicksilver", major,
-		       minor, func_class, (long)dev->hpa.start);
+		       minor, func_class, &(dev->hpa.start));
 
 		cfg_ops = &mercury_cfg_ops;
 	} else {
-		printk(KERN_ERR "Unknown LBA found at 0x%lx\n",
-			(long)dev->hpa.start);
+		printk(KERN_ERR "Unknown LBA found at %pZ\n",
+			&(dev->hpa.start));
 		return -ENODEV;
 	}
 
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index bc73b96..4ad4d52 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1938,8 +1938,8 @@ sba_driver_callback(struct parisc_device *dev)
 			global_ioc_cnt *= 2;
 	}
 
-	printk(KERN_INFO "%s found %s at 0x%llx\n",
-		MODULE_NAME, version, (unsigned long long)dev->hpa.start);
+	printk(KERN_INFO "%s found %s at %pZ\n",
+		MODULE_NAME, version, &(dev->hpa.start));
 
 	sba_dev = kzalloc(sizeof(struct sba_device), GFP_KERNEL);
 	if (!sba_dev) {
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index a013bbc..342496f 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -607,6 +607,12 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr, int field
 		return symbol_string(buf, end, ptr, field_width, precision, flags);
 	case 'R':
 		return resource_string(buf, end, ptr, field_width, precision, flags);
+	case 'Z':
+		{
+			resource_size_t rsz = *((resource_size_t *)ptr);
+			return number(buf, end, (unsigned long long)rsz, 16,
+				field_width, -1, SPECIAL | SMALL | ZEROPAD);
+		}
 	}
 	flags |= SMALL;
 	if (field_width == -1) {
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On Thu, Dec 04, 2008 at 10:12:41AM +1030, Rusty Russell wrote:
> This is defined in linux/cpumask.h (included in this file already),
> and this will break when the definition changes (in a following patch).
> 
> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Accepted, though it would have been nice if it had either hit all the
maintainers, or hit the list too...

cheers, Kyle

> ---
>  arch/parisc/include/asm/smp.h |    2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/arch/parisc/include/asm/smp.h b/arch/parisc/include/asm/smp.h
> --- a/arch/parisc/include/asm/smp.h
> +++ b/arch/parisc/include/asm/smp.h
> @@ -15,8 +15,6 @@
>  #include <linux/threads.h>	/* for NR_CPUS */
>  #include <linux/cpumask.h>
>  typedef unsigned long address_t;
> -
> -extern cpumask_t cpu_online_map;
>  
>  
>  /*
> 
> 
> --
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From - Thu Nov 08 21:03:07 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: 2.6.28-rcX in pretty bad shape on parisc
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On Mon, Dec 08, 2008 at 12:50:01AM -0700, Grant Grundler wrote:
> > So, the code is using the thread register (cr27).  Not sure what syscall
> > this is.  However, the problem might be TLS releated.
> 
> I have no idea if TLS makes a difference to kernel builds.
> 

I don't think Debian is using NPTL yet due to $issues previously
discussed...

linuxthreads being broken in newer glibc sounds unsuprisingly though.

regards, Kyle
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From - Thu Nov 08 21:03:07 2018
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From: Rusty Russell <rusty@rustcorp.com.au>
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Subject: Re: [PATCH] parisc: remove gratuitous cpu_online_map declaration.
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On Tuesday 09 December 2008 14:24:07 Kyle McMartin wrote:
> On Thu, Dec 04, 2008 at 10:12:41AM +1030, Rusty Russell wrote:
> > This is defined in linux/cpumask.h (included in this file already),
> > and this will break when the definition changes (in a following patch).
> > 
> > Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
> 
> Accepted, though it would have been nice if it had either hit all the
> maintainers, or hit the list too...

OK, I picked one maintainer at semi-random.   I've added you and Willy
to my annoy-maintainers script.

Thanks,
Rusty.
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New commits:
commit 5782dc68d2899f30a531261e7288a40cc46821f7
Author: Rusty Russell <rusty@rustcorp.com.au>
Date:   Thu Dec 4 10:12:41 2008 +1030

    parisc: remove gratuitous cpu_online_map declaration.
    
    This is defined in linux/cpumask.h (included in this file already),
    and this will break when the definition changes (in a following patch).
    
    Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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Cc: linux-kernel@vger.kernel.org, dhowells@redhat.com,
	Richard Henderson <rth@twiddle.net>,
	Russell King <rmk@arm.linux.org.uk>,
	Haavard Skinnemoen <hskinnemoen@atmel.com>,
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	Tony Luck <tony.luck@intel.com>,
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	Chris Zankel <chris@zankel.net>,
	Linus Torvalds <torvalds@linux-foundation.org>
To: Stephen Rothwell <sfr@canb.auug.org.au>
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OK, I've folded in all the fixes, thanks.  Git tree is here:

	git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-boot-params.git

Stephen, please include in linux-next.  Clearly this hits every arch.  I'll
try to avoid rebasing unless I've broken some arch horribly.

Thanks,
Rusty.

David Howells (2):
      param: Adapt MN10300 to the new parameter handling regime
      param: Adapt FRV to the new parameter handling regime    

Rusty Russell (10):
      USB: Don't use __module_param_call
      param: allow parse_args to work non-destructively.
      core_param: call these really, really early.      
      param: make sure charp isn't used as a core_param 
      param: arch_get_boot_command_line()               
      params: move core_param() parsing to before setup_arch.
      Call early_param earlier.                              
      param: combine core_param and early_param parsing.     
      params: don't use alloc_bootmem for saved_command_line 
      param: move banner printing to top of start_kernel.    

 arch/alpha/kernel/setup.c                  |   36 ++++++++-----
 arch/arm/kernel/setup.c                    |   43 +++++++++-------
 arch/avr32/kernel/setup.c                  |   15 ++---           
 arch/blackfin/kernel/setup.c               |   22 ++++----        
 arch/cris/kernel/setup.c                   |   29 +++++-----      
 arch/frv/kernel/setup.c                    |   50 +++++++-----------
 arch/h8300/kernel/setup.c                  |   27 +++++-----        
 arch/ia64/dig/setup.c                      |    2 +-                
 arch/ia64/hp/sim/hpsim_setup.c             |    2 +-                
 arch/ia64/include/asm/machvec.h            |    4 +-                
 arch/ia64/include/asm/paravirt.h           |    8 ++--              
 arch/ia64/kernel/machvec.c                 |    8 +++-              
 arch/ia64/kernel/setup.c                   |   32 ++++++------      
 arch/ia64/sn/kernel/setup.c                |   13 ++---             
 arch/ia64/uv/kernel/setup.c                |    2 +-                
 arch/ia64/xen/xen_pv_ops.c                 |    2 +-                
 arch/m32r/kernel/setup.c                   |   16 +++---            
 arch/m68k/kernel/setup.c                   |   27 ++++++----        
 arch/m68knommu/include/asm/machdep.h       |    2 +-                
 arch/m68knommu/kernel/setup.c              |   33 ++++++------      
 arch/m68knommu/platform/5206/config.c      |    2 +-                
 arch/m68knommu/platform/5206e/config.c     |   14 +++--             
 arch/m68knommu/platform/520x/config.c      |    2 +-                
 arch/m68knommu/platform/523x/config.c      |    2 +-                
 arch/m68knommu/platform/5249/config.c      |    2 +-                
 arch/m68knommu/platform/5272/config.c      |   23 ++++----          
 arch/m68knommu/platform/527x/config.c      |    2 +-                
 arch/m68knommu/platform/528x/config.c      |    2 +-                
 arch/m68knommu/platform/5307/config.c      |   13 +++--             
 arch/m68knommu/platform/532x/config.c      |   22 ++++----          
 arch/m68knommu/platform/5407/config.c      |    2 +-                
 arch/m68knommu/platform/68328/config.c     |    2 +-                
 arch/m68knommu/platform/68328/head-pilot.S |    2 +-                
 arch/m68knommu/platform/68360/config.c     |    6 ++-               
 arch/m68knommu/platform/68EZ328/config.c   |    4 +-                
 arch/m68knommu/platform/68VZ328/config.c   |   12 +++--             
 arch/mips/kernel/setup.c                   |   20 ++++----          
 arch/mn10300/kernel/setup.c                |   61 +++++++++-------------
 arch/parisc/kernel/setup.c                 |   30 +++++------           
 arch/powerpc/kernel/prom.c                 |    1 -                     
 arch/powerpc/kernel/setup_32.c             |   10 +++-                  
 arch/powerpc/kernel/setup_64.c             |    8 ++-                   
 arch/s390/kernel/setup.c                   |    8 +---                  
 arch/sh/boards/board-magicpanelr2.c        |    2 +-                    
 arch/sh/boards/board-sh7785lcr.c           |    2 +-
 arch/sh/boards/mach-dreamcast/setup.c      |    2 +-
 arch/sh/boards/mach-highlander/setup.c     |    2 +-
 arch/sh/boards/mach-hp6xx/setup.c          |    2 +-
 arch/sh/boards/mach-landisk/setup.c        |    2 +-
 arch/sh/boards/mach-microdev/setup.c       |    2 +-
 arch/sh/boards/mach-migor/setup.c          |    2 +-
 arch/sh/boards/mach-r2d/setup.c            |    2 +-
 arch/sh/boards/mach-sdk7780/setup.c        |    2 +-
 arch/sh/boards/mach-se/7343/setup.c        |    2 +-
 arch/sh/boards/mach-se/770x/setup.c        |    2 +-
 arch/sh/boards/mach-se/7721/setup.c        |    2 +-
 arch/sh/boards/mach-se/7722/setup.c        |    2 +-
 arch/sh/boards/mach-se/7780/setup.c        |    2 +-
 arch/sh/boards/mach-sh03/setup.c           |    2 +-
 arch/sh/boards/mach-sh7763rdp/setup.c      |    2 +-
 arch/sh/include/asm/machvec.h              |    2 +-
 arch/sh/kernel/setup.c                     |   28 +++++-----
 arch/sparc/kernel/setup.c                  |   14 +++---
 arch/sparc64/kernel/setup.c                |   12 ++--
 arch/um/kernel/um_arch.c                   |   10 +++-
 arch/x86/kernel/setup.c                    |   41 +++++++--------
 arch/xtensa/kernel/setup.c                 |   19 ++++---
 drivers/usb/core/usb.c                     |    8 ++-
 include/asm-generic/vmlinux.lds.h          |    3 +
 include/linux/init.h                       |    5 +-
 include/linux/moduleparam.h                |   43 ++++++++++++----
 init/main.c                                |   74 ++++++++++++--------------
 kernel/kexec.c                             |    1 +
 kernel/module.c                            |    2 +-
 kernel/params.c                            |   77 +++++++++++++++++++++------
 75 files changed, 535 insertions(+), 461 deletions(-)
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: remove gratuitous cpu_online_map declaration.
Date: Tue, 9 Dec 2008 15:44:30 -0700
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Cc: Kyle McMartin <kyle@infradead.org>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
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To: Rusty Russell <rusty@rustcorp.com.au>
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On Wed, Dec 10, 2008 at 08:36:19AM +1030, Rusty Russell wrote:
> On Tuesday 09 December 2008 14:24:07 Kyle McMartin wrote:
> > On Thu, Dec 04, 2008 at 10:12:41AM +1030, Rusty Russell wrote:
> > > This is defined in linux/cpumask.h (included in this file already),
> > > and this will break when the definition changes (in a following patch).
> > > 
> > > Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
> > 
> > Accepted, though it would have been nice if it had either hit all the
> > maintainers, or hit the list too...
> 
> OK, I picked one maintainer at semi-random.   I've added you and Willy
> to my annoy-maintainers script.

Rusty,
willy and I should be dropped as parisc-linux maintainers.
(We can review parisc patches, just not listed as maintainers.)

Please add Helge Deller <deller@gmx.net> (IIRC).

Patch to MAINTAINERS was submitted just a week ago or so.

cheers,
grant

> 
> Thanks,
> Rusty.
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Subject: Re: setup_arch/arch_get_boot_command_line changes
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To: Rusty Russell <rusty@rustcorp.com.au>
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On Wed, Dec 10, 2008 at 08:50:24AM +1030, Rusty Russell wrote:
> Rusty Russell (10):
> <snip>
>       param: move banner printing to top of start_kernel.    
> 

Will this not run afoul of lockdep since it will be attempting to take
locks before lockdep has initialized?

(as an aside, it would be nice if it came after setup_arch, since on
some horrible platforms, printk_time needs the fpu turned on for
(integer) division, but there's no arch hook before the first printk, so
one needs to hijack the start_kernel entrypoint...)

regards, Kyle
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Subject: Re: setup_arch/arch_get_boot_command_line changes
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Cc: Rusty Russell <rusty@rustcorp.com.au>,
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	Paul Mundt <lethal@linux-sh.org>,
	"David S. Miller" <davem@davemloft.net>,
	Jeff Dike <jdike@addtoit.com>, Ingo Molnar <mingo@redhat.com>,
	Chris Zankel <chris@zankel.net>,
	Linus Torvalds <torvalds@linux-foundation.org>
To: Kyle McMartin <kyle@infradead.org>
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On Tue, Dec 09, 2008 at 05:59:31PM -0500, Kyle McMartin wrote:
> Will this not run afoul of lockdep since it will be attempting to take
> locks before lockdep has initialized?
> 

Ah, printk calls lockdep_off now. Handy.

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Grant Grundler wrote:
> On Wed, Dec 10, 2008 at 08:36:19AM +1030, Rusty Russell wrote:
>> On Tuesday 09 December 2008 14:24:07 Kyle McMartin wrote:
>>> On Thu, Dec 04, 2008 at 10:12:41AM +1030, Rusty Russell wrote:
>>>> This is defined in linux/cpumask.h (included in this file already),
>>>> and this will break when the definition changes (in a following patch).
>>>>
>>>> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
>>> Accepted, though it would have been nice if it had either hit all the
>>> maintainers, or hit the list too...
>> OK, I picked one maintainer at semi-random.   I've added you and Willy
>> to my annoy-maintainers script.
> 
> Rusty,
> willy and I should be dropped as parisc-linux maintainers.
> (We can review parisc patches, just not listed as maintainers.)
> 
> Please add Helge Deller <deller@gmx.net> (IIRC).

Rusty,

Please use: Helge Deller <deller@gmx.de>

Thanks,
Helge
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Cc: Rusty Russell <rusty@rustcorp.com.au>,
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	Hirokazu Takata <takata@linux-m32r.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Greg Ungerer <gerg@uclinux.org>,
	Ralf Baechle <ralf@linux-mips.org>,
	linux-parisc@vger.kernel.org, Paul Mackerras <paulus@samba.org>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Paul Mundt <lethal@linux-sh.org>,
	"David S. Miller" <davem@davemloft.net>,
	Jeff Dike <jdike@addtoit.com>, Ingo Molnar <mingo@redhat.com>,
	Chris Zankel <chris@zankel.net>,
	Linus Torvalds <torvalds@linux-foundation.org>
To: Kyle McMartin <kyle@infradead.org>
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On Tue, Dec 09, 2008 at 06:02:14PM -0500, Kyle McMartin wrote:
> On Tue, Dec 09, 2008 at 05:59:31PM -0500, Kyle McMartin wrote:
> > Will this not run afoul of lockdep since it will be attempting to take
> > locks before lockdep has initialized?
> > 
> 
> Ah, printk calls lockdep_off now. Handy.
> 

Nevermind, this doesn't do what I think it does... Rusty, does this work
with lockdep enabled?
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	Richard Henderson <rth@twiddle.net>,
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To: Rusty Russell <rusty@rustcorp.com.au>
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On Wed, 10 Dec 2008, Rusty Russell wrote:
>
> OK, I've folded in all the fixes, thanks.  Git tree is here:
> 
> 	git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-boot-params.git
> 
> Stephen, please include in linux-next.  Clearly this hits every arch.  I'll
> try to avoid rebasing unless I've broken some arch horribly.

This looks really invasive, with absolutely zero explanations of what the 
point of it all is.

What?

		Linus
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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To: kyle@infradead.org (Kyle McMartin)
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> On Mon, Dec 08, 2008 at 11:00:51AM -0500, Kyle McMartin wrote:

> diff --git a/lib/vsprintf.c b/lib/vsprintf.c
> index a013bbc..342496f 100644
> --- a/lib/vsprintf.c
> +++ b/lib/vsprintf.c
> @@ -607,6 +607,12 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr, int field
>  		return symbol_string(buf, end, ptr, field_width, precision, flags);
>  	case 'R':
>  		return resource_string(buf, end, ptr, field_width, precision, flags);

Hmmm, what's this?  It appears this provides a model for printing just
the start value.  The size of the character array depends on the sizeof
resource_size_t.  There's also a flag dependence.

Attached below is the change that I had.  Think this includes some
additional locations to update.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff -upr a/drivers/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
--- a/drivers/input/keyboard/hilkbd.c	2008-12-01 22:59:23.000000000 -0500
+++ b/drivers/input/keyboard/hilkbd.c	2008-12-07 17:10:53.000000000 -0500
@@ -314,7 +314,7 @@ static int __init
 hil_init_chip(struct parisc_device *dev)
 {
 	if (!dev->irq) {
-		printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%08lx\n", dev->hpa.start);
+		printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%p\n", (void *)dev->hpa.start);
 		return -ENODEV;
 	}
 
diff -upr a/drivers/net/lasi_82596.c b/drivers/net/lasi_82596.c
--- a/drivers/net/lasi_82596.c	2008-12-01 22:59:23.000000000 -0500
+++ b/drivers/net/lasi_82596.c	2008-12-07 17:13:51.000000000 -0500
@@ -160,13 +160,13 @@ lan_init_chip(struct parisc_device *dev)
 	int i;
 
 	if (!dev->irq) {
-		printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n",
-			__FILE__, dev->hpa.start);
+		printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%p\n",
+			__FILE__, (void *)dev->hpa.start);
 		return -ENODEV;
 	}
 
-	printk(KERN_INFO "Found i82596 at 0x%lx, IRQ %d\n", dev->hpa.start,
-			dev->irq);
+	printk(KERN_INFO "Found i82596 at 0x%p, IRQ %d\n",
+		(void *)dev->hpa.start, dev->irq);
 
 	netdevice = alloc_etherdev(sizeof(struct i596_private));
 	if (!netdevice)
diff -upr a/drivers/parisc/asp.c b/drivers/parisc/asp.c
--- a/drivers/parisc/asp.c	2008-12-01 22:59:23.000000000 -0500
+++ b/drivers/parisc/asp.c	2008-12-07 17:22:30.000000000 -0500
@@ -81,8 +81,8 @@ asp_init_chip(struct parisc_device *dev)
 	asp.name = (asp.version == 1) ? "Asp" : "Cutoff";
 	asp.hpa = ASP_INTERRUPT_ADDR;
 
-	printk(KERN_INFO "%s version %d at 0x%lx found.\n", 
-		asp.name, asp.version, dev->hpa.start);
+	printk(KERN_INFO "%s version %d at 0x%p found.\n", 
+		asp.name, asp.version, (void *)dev->hpa.start);
 
 	/* the IRQ ASP should use */
 	ret = -EBUSY;
diff -upr a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
--- a/drivers/parisc/ccio-dma.c	2008-12-01 22:59:23.000000000 -0500
+++ b/drivers/parisc/ccio-dma.c	2008-12-07 19:13:51.000000000 -0500
@@ -1399,8 +1401,8 @@ ccio_init_resource(struct resource *res,
 	 */
 	result = insert_resource(&iomem_resource, res);
 	if (result < 0) {
-		printk(KERN_ERR "%s() failed to claim CCIO bus address space (%08lx,%08lx)\n", 
-			__func__, res->start, res->end);
+		printk(KERN_ERR "%s() failed to claim CCIO bus address space (0x%p,0x%p)\n", 
+			__func__, (void *)res->start, (void *)res->end);
 	}
 }
 
@@ -1551,7 +1553,8 @@ static int __init ccio_probe(struct pari
 
 	ioc->name = dev->id.hversion == U2_IOA_RUNWAY ? "U2" : "UTurn";
 
-	printk(KERN_INFO "Found %s at 0x%lx\n", ioc->name, dev->hpa.start);
+	printk(KERN_INFO "Found %s at 0x%p\n", ioc->name,
+		(void *)dev->hpa.start);
 
 	for (i = 0; i < ioc_count; i++) {
 		ioc_p = &(*ioc_p)->next;
diff -upr a/drivers/parisc/dino.c b/drivers/parisc/dino.c
--- a/drivers/parisc/dino.c	2008-12-01 22:59:23.000000000 -0500
+++ b/drivers/parisc/dino.c	2008-12-07 19:31:24.000000000 -0500
@@ -819,7 +821,7 @@ dino_bridge_init(struct dino_device *din
 
 		result = ccio_request_resource(dino_dev->hba.dev, &res[i]);
 		if (result < 0) {
-			printk(KERN_ERR "%s: failed to claim PCI Bus address space %d (0x%lx-0x%lx)!\n", name, i, res[i].start, res[i].end);
+			printk(KERN_ERR "%s: failed to claim PCI Bus address space %d (0x%p-0x%p)!\n", name, i, (void *)res[i].start, (void *)res[i].end);
 			return result;
 		}
 	}
@@ -898,8 +900,9 @@ static int __init dino_common_init(struc
 	res->flags = IORESOURCE_IO; /* do not mark it busy ! */
 	if (request_resource(&ioport_resource, res) < 0) {
 		printk(KERN_ERR "%s: request I/O Port region failed "
-		       "0x%lx/%lx (hpa 0x%p)\n",
-		       name, res->start, res->end, dino_dev->hba.base_addr);
+		       "0x%p/%p (hpa 0x%p)\n",
+		       name, (void *)res->start, (void *)res->end,
+		       dino_dev->hba.base_addr);
 		return 1;
 	}
 
diff -upr a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c
--- a/drivers/parisc/hppb.c	2008-12-01 22:59:23.000000000 -0500
+++ b/drivers/parisc/hppb.c	2008-12-07 17:19:14.000000000 -0500
@@ -62,7 +62,7 @@ static int hppb_probe(struct parisc_devi
 		}
 		card = card->next;
 	}
-        printk(KERN_INFO "Found GeckoBoa at 0x%x\n", dev->hpa.start);
+        printk(KERN_INFO "Found GeckoBoa at 0x%p\n", (void *)dev->hpa.start);
 
 	card->hpa = dev->hpa.start;
 	card->mmio_region.name = "HP-PB Bus";
@@ -73,8 +73,10 @@ static int hppb_probe(struct parisc_devi
 
 	status = ccio_request_resource(dev, &card->mmio_region);
 	if(status < 0) {
-		printk(KERN_ERR "%s: failed to claim HP-PB bus space (%08x, %08x)\n",
-			__FILE__, card->mmio_region.start, card->mmio_region.end);
+		printk(KERN_ERR "%s: failed to claim HP-PB bus space (0x%p, 0x%p)\n",
+			__FILE__,
+			(void *)card->mmio_region.start,
+			(void *)card->mmio_region.end);
 	}
 
         return 0;
diff -upr a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
--- a/drivers/parport/parport_gsc.c	2008-12-01 22:59:23.000000000 -0500
+++ b/drivers/parport/parport_gsc.c	2008-12-07 17:23:13.000000000 -0500
@@ -352,8 +352,8 @@ static int __devinit parport_init_chip(s
 	unsigned long port;
 
 	if (!dev->irq) {
-		printk(KERN_WARNING "IRQ not found for parallel device at 0x%lx\n",
-			dev->hpa.start);
+		printk(KERN_WARNING "IRQ not found for parallel device at 0x%p\n",
+			(void *)dev->hpa.start);
 		return -ENODEV;
 	}
 
diff -upr a/drivers/serial/8250_gsc.c b/drivers/serial/8250_gsc.c
--- a/drivers/serial/8250_gsc.c	2008-12-01 22:59:23.000000000 -0500
+++ b/drivers/serial/8250_gsc.c	2008-12-07 17:24:15.000000000 -0500
@@ -39,9 +39,9 @@ static int __init serial_init_chip(struc
 		 */
 		if (parisc_parent(dev)->id.hw_type != HPHW_IOA)
 			printk(KERN_INFO
-				"Serial: device 0x%lx not configured.\n"
+				"Serial: device 0x%p not configured.\n"
 				"Enable support for Wax, Lasi, Asp or Dino.\n",
-				dev->hpa.start);
+				(void *)dev->hpa.start);
 		return -ENODEV;
 	}
 
diff -upr a/sound/parisc/harmony.c b/sound/parisc/harmony.c
--- a/sound/parisc/harmony.c	2008-12-01 22:59:23.000000000 -0500
+++ b/sound/parisc/harmony.c	2008-12-07 17:24:55.000000000 -0500
@@ -934,8 +934,8 @@ snd_harmony_create(struct snd_card *card
 	h->irq = -1;
 	h->iobase = ioremap_nocache(padev->hpa.start, HARMONY_SIZE);
 	if (h->iobase == NULL) {
-		printk(KERN_ERR PFX "unable to remap hpa 0x%lx\n",
-		       padev->hpa.start);
+		printk(KERN_ERR PFX "unable to remap hpa 0x%p\n",
+		       (void *)padev->hpa.start);
 		err = -EBUSY;
 		goto free_and_ret;
 	}
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From - Thu Nov 08 21:03:08 2018
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From: Rusty Russell <rusty@rustcorp.com.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: setup_arch/arch_get_boot_command_line changes
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Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
	linux-kernel@vger.kernel.org, dhowells@redhat.com,
	Richard Henderson <rth@twiddle.net>,
	Russell King <rmk@arm.linux.org.uk>,
	Haavard Skinnemoen <hskinnemoen@atmel.com>,
	Bryan Wu <cooloney@kernel.org>,
	Mikael Starvik <starvik@axis.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Tony Luck <tony.luck@intel.com>,
	Hirokazu Takata <takata@linux-m32r.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Greg Ungerer <gerg@uclinux.org>,
	Ralf Baechle <ralf@linux-mips.org>,
	linux-parisc@vger.kernel.org, Paul Mackerras <paulus@samba.org>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Paul Mundt <lethal@linux-sh.org>,
	"David S. Miller" <davem@davemloft.net>,
	Jeff Dike <jdike@addtoit.com>, Ingo Molnar <mingo@redhat.com>,
	Chris Zankel <chris@zankel.net>
To: Linus Torvalds <torvalds@linux-foundation.org>
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On Wednesday 10 December 2008 10:24:11 Linus Torvalds wrote:
> This looks really invasive, with absolutely zero explanations of what the 
> point of it all is.
> 
> What?

Sorry, it's a cleanup.  I wanted start_kernel(const char *cmdline), but that
was even more invasive.

Justification: there are about five command line parsing systems in the
kernel at the moment, and about the same number of copies of the command
line.  Here's how it works at the moment:

1) setup_arch(char **cmdlinep) is called.  This copies the command line
   into boot_command_line, and also returns a pointer in cmdlinep.  That
   pointer is not usually boot_command_line, but an arch-internal cmdline
   which for some archs have deleted already-parsed options.  Some archs
   do strstr parsing of the command line here.

2) parse_early_param() is called by some archs from setup_arch.  This copies
   boot_command_line into an __initdata temporary to parse for early_param().
   early_param() look like foo[=bar] and go for a generic callback: they
   are usually sloppily parsed but simple.

   Other archs don't call this, so we call it again later in start_kernel.

   (parse_early_param() can't be called before setup_arch because we don't
   know the command line yet, but many archs need the parsing done to
   complete setup_arch.)

3) setup_command_line() copies boot_command_line into saved_command_line,
   because boot_command_line is __initdata, and we need to save it for proc.
   It also copies the cmdlinep returned from setup_arch into
   static_command_line, because cmdlinep may point to initdata, and
   traditionally command line callbacks are allowed to keep pointers to
   their args so we need to keep the (mangled) cmdline around.

4) We parse the command line again, matching for core_param, module_param
   and __setup.  module_param is the standard modname.arg, and core_param
   is just 'arg'.  They both can (optionally) make the args read/writable
   in sysfs, and are trivial and typesafe to use.  __setup() is a generic
   prefix-matching callback which has been around forever.

5) IA64 needs machvec= processed before any of the other early_param()
   calls, so it grabs this manually.  It leaves it in the command line, so
   it seems that init gets a $machvec in its environment if this was set.

6) Arm uses __early_param which is arm-specific.  This is like early_param,
   only different.

New code:
1) arch_get_boot_command_line() just gets the command-line at the start of
   setup_arch.  Making copies etc. is all in generic code.
2) early_param and core_param are parsed just after, so you can rely
   on the results in setup_arch(), which no longer does any command line
   stuff.
3) Three copies of command line total: char __initdata boot_command_line[]
   since we can't alloc, char *saved_command_line for proc, and static char *
   static_command_line for __setup/module_param to keep references to.
4) Some archs still have working copies of the command line, but they don't
   need to and I put in FIXMEs.
5) IA64 still has to handle machvec= manually.  AFAICT it's the only one, so
   not worth putting in a boutique pre-early_param for that.

It's a nice cleanup, but it's not a revolutionary improvement IMHO.

Rusty.
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From: Rusty Russell <rusty@rustcorp.com.au>
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	Richard Henderson <rth@twiddle.net>,
	Russell King <rmk@arm.linux.org.uk>,
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	Chris Zankel <chris@zankel.net>,
	Linus Torvalds <torvalds@linux-foundation.org>
To: Kyle McMartin <kyle@infradead.org>
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On Wednesday 10 December 2008 09:29:31 Kyle McMartin wrote:
> On Wed, Dec 10, 2008 at 08:50:24AM +1030, Rusty Russell wrote:
> > Rusty Russell (10):
> > <snip>
> >       param: move banner printing to top of start_kernel.    
> > 
> 
> Will this not run afoul of lockdep since it will be attempting to take
> locks before lockdep has initialized?

Hmm, works for me here.  But then, i386_start_kernel -> reserve_ebda_region
->printk already, so that banner is *still* not first line.

> (as an aside, it would be nice if it came after setup_arch, since on
> some horrible platforms, printk_time needs the fpu turned on for
> (integer) division, but there's no arch hook before the first printk, so
> one needs to hijack the start_kernel entrypoint...)

That won't help much, since a failed kernel parameter parse will also call
printk.  I don't think it's sane to call start_kernel without the
ability to do integer division!

Rusty.
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Fwd: [PATCH] fix mapping_writably_mapped()
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This may explain some of the userspace issues we've been seeing.

----- Forwarded message from Hugh Dickins <hugh@veritas.com> -----

Sender: linux-arch-owner@vger.kernel.org
From: Hugh Dickins <hugh@veritas.com>
Subject: [PATCH] fix mapping_writably_mapped()
To: Linus Torvalds <torvalds@linux-foundation.org>
cc: Andrew Morton <akpm@linux-foundation.org>,
	Lee Schermerhorn <Lee.Schermerhorn@hp.com>, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
	stable@kernel.org
Date: Wed, 10 Dec 2008 20:48:52 +0000 (GMT)
Message-ID: <Pine.LNX.4.64.0812102043060.25282@blonde.anvils>

Lee Schermerhorn noticed yesterday that I broke the mapping_writably_mapped
test in 2.6.7!  Bad bad bug, good good find.

The i_mmap_writable count must be incremented for VM_SHARED (just as
i_writecount is for VM_DENYWRITE, but while holding the i_mmap_lock)
when dup_mmap() copies the vma for fork: it has its own more optimal
version of __vma_link_file(), and I missed this out.  So the count
was later going down to 0 (dangerous) when one end unmapped, then
wrapping negative (inefficient) when the other end unmapped.

The only impact on x86 would have been that setting a mandatory lock on
a file which has at some time been opened O_RDWR and mapped MAP_SHARED
(but not necessarily PROT_WRITE) across a fork, might fail with -EAGAIN
when it should succeed, or succeed when it should fail.

But those architectures which rely on flush_dcache_page() to flush
userspace modifications back into the page before the kernel reads it,
may in some cases have skipped the flush after such a fork - though any
repetitive test will soon wrap the count negative, in which case it will
flush_dcache_page() unnecessarily.

Fix would be a two-liner, but mapping variable added, and comment moved.

Reported-by: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
---

 kernel/fork.c |   15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

--- 2.6.28-rc7/kernel/fork.c	2008-11-15 23:09:30.000000000 +0000
+++ linux/kernel/fork.c	2008-12-10 12:49:13.000000000 +0000
@@ -315,17 +315,20 @@ static int dup_mmap(struct mm_struct *mm
 		file = tmp->vm_file;
 		if (file) {
 			struct inode *inode = file->f_path.dentry->d_inode;
+			struct address_space *mapping = file->f_mapping;
+
 			get_file(file);
 			if (tmp->vm_flags & VM_DENYWRITE)
 				atomic_dec(&inode->i_writecount);

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Subject: Re: Fwd: [PATCH] fix mapping_writably_mapped()
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On Wed, Dec 10, 2008 at 04:46:38PM -0500, Kyle McMartin wrote:
> This may explain some of the userspace issues we've been seeing.

Yes.  Yes, it would.

-- 
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"Bill, look, we understand that you're interested in selling us this
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Attached are various fixes to correct warnings.  Mostly, they fix
warnings about ignoring return values.  There is one warning about
using a possibly uninitialized variable.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--+HP7ph2BbKc20aGI
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="ccio-dma.c.d.1"

diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index 71c1971..2d1aa6b 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -260,7 +260,7 @@ static int hil_kbd_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct hil_kbd	*kbd;
 	uint8_t		did, *idd;
-	int		i;
+	int		err, i;
 
 	kbd = kzalloc(sizeof(*kbd), GFP_KERNEL);
 	if (!kbd)
@@ -345,7 +345,13 @@ static int hil_kbd_connect(struct serio *serio, struct serio_driver *drv)
 	}
 	clear_bit(0, kbd->dev->keybit);
 
-	input_register_device(kbd->dev);
+	err = input_register_device(kbd->dev);
+	if (err < 0) {
+		input_free_device(kbd->dev);
+		kfree(kbd);
+		return err;
+	}
+
 	printk(KERN_INFO "input: %s, ID: %d\n",
 		kbd->dev->name, did);
 
diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c
index 216a559..9a35a4c 100644
--- a/drivers/input/misc/hp_sdc_rtc.c
+++ b/drivers/input/misc/hp_sdc_rtc.c
@@ -52,6 +52,8 @@ MODULE_LICENSE("Dual BSD/GPL");
 
 #define RTC_VERSION "1.10d"
 
+#define CONFIG_EXPERIMENTAL_IOCTL 0
+
 static unsigned long epoch = 2000;
 
 static struct semaphore i8042tregs;
@@ -108,7 +110,9 @@ static int hp_sdc_rtc_do_read_bbrtc (struct rtc_time *rtctm)
 	
 	if (hp_sdc_enqueue_transaction(&t)) return -1;
 	
-	down_interruptible(&tsem);  /* Put ourselves to sleep for results. */
+	/* Put ourselves to sleep for results. */
+	if (down_interruptible(&tsem) < 0)
+		return -1;
 	
 	/* Check for nonpresence of BBRTC */
 	if (!((tseq[83] | tseq[90] | tseq[69] | tseq[76] |
@@ -175,11 +179,16 @@ static int64_t hp_sdc_rtc_read_i8042timer (uint8_t loadcmd, int numreg)
 	t.seq =			tseq;
 	t.act.semaphore =	&i8042tregs;
 
-	down_interruptible(&i8042tregs);  /* Sleep if output regs in use. */
+	/* Sleep if output regs in use. */
+	if (down_interruptible(&i8042tregs) < 0)
+		return -1;
 
 	if (hp_sdc_enqueue_transaction(&t)) return -1;
 	
-	down_interruptible(&i8042tregs);  /* Sleep until results come back. */
+	/* Sleep until results come back. */
+	if (down_interruptible(&i8042tregs) < 0)
+		return -1;
+
 	up(&i8042tregs);
 
 	return (tseq[5] | 
@@ -274,6 +283,7 @@ static inline int hp_sdc_rtc_read_ct(struct timeval *res) {
 	return 0;
 }
 
+#if CONFIG_EXPERIMENTAL_IOCTL
 
 /* Set the i8042 real-time clock */
 static int hp_sdc_rtc_set_rt (struct timeval *setto)
@@ -386,6 +396,8 @@ static int hp_sdc_rtc_set_i8042timer (struct timeval *setto, uint8_t setcmd)
 	return 0;
 }
 
+#endif /* CONFIG_EXPERIMENTAL_IOCTL */
+
 static ssize_t hp_sdc_rtc_read(struct file *file, char __user *buf,
 			       size_t count, loff_t *ppos) {
 	ssize_t retval;
@@ -517,7 +529,7 @@ static int hp_sdc_rtc_read_proc(char *page, char **start, off_t off,
 static int hp_sdc_rtc_ioctl(struct inode *inode, struct file *file, 
 			    unsigned int cmd, unsigned long arg)
 {
-#if 1
+#if !CONFIG_EXPERIMENTAL_IOCTL
 	return -EINVAL;
 #else
 	
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index dcc1e99..a194acb 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1028,8 +1028,10 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 
 	while (ioc != NULL) {
 		unsigned int total_pages = ioc->res_size << 3;
+#ifdef CCIO_COLLECT_STATS
 		unsigned long avg = 0, min, max;
 		int j;
+#endif
 
 		len += seq_printf(m, "%s\n", ioc->name);
 		

--+HP7ph2BbKc20aGI
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="hp_sdc_rtc.c.d.1"

diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c
index 216a559..9a35a4c 100644
--- a/drivers/input/misc/hp_sdc_rtc.c
+++ b/drivers/input/misc/hp_sdc_rtc.c
@@ -52,6 +52,8 @@ MODULE_LICENSE("Dual BSD/GPL");
 
 #define RTC_VERSION "1.10d"
 
+#define CONFIG_EXPERIMENTAL_IOCTL 0
+
 static unsigned long epoch = 2000;
 
 static struct semaphore i8042tregs;
@@ -108,7 +110,9 @@ static int hp_sdc_rtc_do_read_bbrtc (struct rtc_time *rtctm)
 	
 	if (hp_sdc_enqueue_transaction(&t)) return -1;
 	
-	down_interruptible(&tsem);  /* Put ourselves to sleep for results. */
+	/* Put ourselves to sleep for results. */
+	if (down_interruptible(&tsem) < 0)
+		return -1;
 	
 	/* Check for nonpresence of BBRTC */
 	if (!((tseq[83] | tseq[90] | tseq[69] | tseq[76] |
@@ -175,11 +179,16 @@ static int64_t hp_sdc_rtc_read_i8042timer (uint8_t loadcmd, int numreg)
 	t.seq =			tseq;
 	t.act.semaphore =	&i8042tregs;
 
-	down_interruptible(&i8042tregs);  /* Sleep if output regs in use. */
+	/* Sleep if output regs in use. */
+	if (down_interruptible(&i8042tregs) < 0)
+		return -1;
 
 	if (hp_sdc_enqueue_transaction(&t)) return -1;
 	
-	down_interruptible(&i8042tregs);  /* Sleep until results come back. */
+	/* Sleep until results come back. */
+	if (down_interruptible(&i8042tregs) < 0)
+		return -1;
+
 	up(&i8042tregs);
 
 	return (tseq[5] | 
@@ -274,6 +283,7 @@ static inline int hp_sdc_rtc_read_ct(struct timeval *res) {
 	return 0;
 }
 
+#if CONFIG_EXPERIMENTAL_IOCTL
 
 /* Set the i8042 real-time clock */
 static int hp_sdc_rtc_set_rt (struct timeval *setto)
@@ -386,6 +396,8 @@ static int hp_sdc_rtc_set_i8042timer (struct timeval *setto, uint8_t setcmd)
 	return 0;
 }
 
+#endif /* CONFIG_EXPERIMENTAL_IOCTL */
+
 static ssize_t hp_sdc_rtc_read(struct file *file, char __user *buf,
 			       size_t count, loff_t *ppos) {
 	ssize_t retval;
@@ -517,7 +529,7 @@ static int hp_sdc_rtc_read_proc(char *page, char **start, off_t off,
 static int hp_sdc_rtc_ioctl(struct inode *inode, struct file *file, 
 			    unsigned int cmd, unsigned long arg)
 {
-#if 1
+#if !CONFIG_EXPERIMENTAL_IOCTL
 	return -EINVAL;
 #else
 	

--+HP7ph2BbKc20aGI
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="hil_kbd.c.d.1"

diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index 71c1971..2d1aa6b 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -260,7 +260,7 @@ static int hil_kbd_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct hil_kbd	*kbd;
 	uint8_t		did, *idd;
-	int		i;
+	int		err, i;
 
 	kbd = kzalloc(sizeof(*kbd), GFP_KERNEL);
 	if (!kbd)
@@ -345,7 +345,13 @@ static int hil_kbd_connect(struct serio *serio, struct serio_driver *drv)
 	}
 	clear_bit(0, kbd->dev->keybit);
 
-	input_register_device(kbd->dev);
+	err = input_register_device(kbd->dev);
+	if (err < 0) {
+		input_free_device(kbd->dev);
+		kfree(kbd);
+		return err;
+	}
+
 	printk(KERN_INFO "input: %s, ID: %d\n",
 		kbd->dev->name, did);
 

--+HP7ph2BbKc20aGI
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="dino.c.d.1"

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 3bc54b3..a61a37c 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -614,7 +614,9 @@ dino_fixup_bus(struct pci_bus *bus)
 			    bus->self->dev.bus_id, i,
 			    bus->self->resource[i].start,
 			    bus->self->resource[i].end);
-			pci_assign_resource(bus->self, i);
+			if (pci_assign_resource(bus->self, i) != 0) {
+				printk(KERN_WARNING "Could not assign dino bus resource\n");
+			}
 			DBG("DEBUG %s after assign %d [0x%lx,0x%lx]\n",
 			    bus->self->dev.bus_id, i,
 			    bus->self->resource[i].start,

--+HP7ph2BbKc20aGI
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="8250.c.d.1"

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 303272a..c3120be 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1609,7 +1609,7 @@ static int serial_link_irq_chain(struct uart_8250_port *up)
 
 static void serial_unlink_irq_chain(struct uart_8250_port *up)
 {
-	struct irq_info *i;
+	struct irq_info *i = NULL;
 	struct hlist_node *n;
 	struct hlist_head *h;
 
@@ -1624,6 +1624,7 @@ static void serial_unlink_irq_chain(struct uart_8250_port *up)
 	}
 
 	BUG_ON(n == NULL);
+	BUG_ON(i == NULL);
 	BUG_ON(i->head == NULL);
 
 	if (list_empty(i->head))

--+HP7ph2BbKc20aGI
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="hp_sdc_mlc.c.d.1"

diff --git a/drivers/input/serio/hp_sdc_mlc.c b/drivers/input/serio/hp_sdc_mlc.c
index b587e2d..15c99fb 100644
--- a/drivers/input/serio/hp_sdc_mlc.c
+++ b/drivers/input/serio/hp_sdc_mlc.c
@@ -295,8 +295,9 @@ static void hp_sdc_mlc_out(hil_mlc *mlc)
 	/* priv->tseq[3] = (mlc->ddc + 1) | HP_SDC_LPS_ACSUCC; */
 	priv->tseq[3] = 0;
 	if (mlc->opacket & HIL_CTRL_APE) {
+		int ignore;
 		priv->tseq[3] |= HP_SDC_LPC_APE_IPF;
-		down_trylock(&mlc->csem);
+		ignore = down_trylock(&mlc->csem);
 	}
  enqueue:
 	hp_sdc_enqueue_transaction(&priv->trans);

--+HP7ph2BbKc20aGI--
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From - Thu Nov 08 21:03:08 2018
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Subject: Re: [RFC] Fix warnings from various parisc and hp specific files
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On Wed, 10 Dec 2008, John David Anglin wrote:

> Attached are various fixes to correct warnings.  Mostly, they fix
> warnings about ignoring return values.  There is one warning about
> using a possibly uninitialized variable.

ccio-dma.c patch had some extra stuff.  Re-attaching.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--J2SCkAp4GZ/dPZZf
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diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index dcc1e99..a194acb 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1028,8 +1028,10 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 
 	while (ioc != NULL) {
 		unsigned int total_pages = ioc->res_size << 3;
+#ifdef CCIO_COLLECT_STATS
 		unsigned long avg = 0, min, max;
 		int j;
+#endif
 
 		len += seq_printf(m, "%s\n", ioc->name);
 		

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Subject: Re: Fwd: [PATCH] fix mapping_writably_mapped()
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On Wed, Dec 10, 2008 at 04:46:38PM -0500, Kyle McMartin wrote:
> This may explain some of the userspace issues we've been seeing.

It seems to fix the issues I pointed out.
2.6.28-rc8 (linus' linux-2.6 git) is able to build a kernel from
scratch without segfaulting! :)
Previous 2.6.27 and 2.6.28 kernels that I tested weren't able to do that.

thanks!
grant

> 
> ----- Forwarded message from Hugh Dickins <hugh@veritas.com> -----
> 
> Sender: linux-arch-owner@vger.kernel.org
> From: Hugh Dickins <hugh@veritas.com>
> Subject: [PATCH] fix mapping_writably_mapped()
> To: Linus Torvalds <torvalds@linux-foundation.org>
> cc: Andrew Morton <akpm@linux-foundation.org>,
> 	Lee Schermerhorn <Lee.Schermerhorn@hp.com>, linux-mm@kvack.org,
> 	linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
> 	stable@kernel.org
> Date: Wed, 10 Dec 2008 20:48:52 +0000 (GMT)
> Message-ID: <Pine.LNX.4.64.0812102043060.25282@blonde.anvils>
> 
> Lee Schermerhorn noticed yesterday that I broke the mapping_writably_mapped
> test in 2.6.7!  Bad bad bug, good good find.
> 
> The i_mmap_writable count must be incremented for VM_SHARED (just as
> i_writecount is for VM_DENYWRITE, but while holding the i_mmap_lock)
> when dup_mmap() copies the vma for fork: it has its own more optimal
> version of __vma_link_file(), and I missed this out.  So the count
> was later going down to 0 (dangerous) when one end unmapped, then
> wrapping negative (inefficient) when the other end unmapped.
> 
> The only impact on x86 would have been that setting a mandatory lock on
> a file which has at some time been opened O_RDWR and mapped MAP_SHARED
> (but not necessarily PROT_WRITE) across a fork, might fail with -EAGAIN
> when it should succeed, or succeed when it should fail.
> 
> But those architectures which rely on flush_dcache_page() to flush
> userspace modifications back into the page before the kernel reads it,
> may in some cases have skipped the flush after such a fork - though any
> repetitive test will soon wrap the count negative, in which case it will
> flush_dcache_page() unnecessarily.
> 
> Fix would be a two-liner, but mapping variable added, and comment moved.
> 
> Reported-by: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
> Signed-off-by: Hugh Dickins <hugh@veritas.com>
> ---
> 
>  kernel/fork.c |   15 +++++++++------
>  1 file changed, 9 insertions(+), 6 deletions(-)
> 
> --- 2.6.28-rc7/kernel/fork.c	2008-11-15 23:09:30.000000000 +0000
> +++ linux/kernel/fork.c	2008-12-10 12:49:13.000000000 +0000
> @@ -315,17 +315,20 @@ static int dup_mmap(struct mm_struct *mm
>  		file = tmp->vm_file;
>  		if (file) {
>  			struct inode *inode = file->f_path.dentry->d_inode;
> +			struct address_space *mapping = file->f_mapping;
> +
>  			get_file(file);
>  			if (tmp->vm_flags & VM_DENYWRITE)
>  				atomic_dec(&inode->i_writecount);
> -
> -			/* insert tmp into the share list, just after mpnt */
> -			spin_lock(&file->f_mapping->i_mmap_lock);
> +			spin_lock(&mapping->i_mmap_lock);
> +			if (tmp->vm_flags & VM_SHARED)
> +				mapping->i_mmap_writable++;
>  			tmp->vm_truncate_count = mpnt->vm_truncate_count;
> -			flush_dcache_mmap_lock(file->f_mapping);
> +			flush_dcache_mmap_lock(mapping);
> +			/* insert tmp into the share list, just after mpnt */
>  			vma_prio_tree_add(tmp, mpnt);
> -			flush_dcache_mmap_unlock(file->f_mapping);
> -			spin_unlock(&file->f_mapping->i_mmap_lock);
> +			flush_dcache_mmap_unlock(mapping);
> +			spin_unlock(&mapping->i_mmap_lock);
>  		}
>  
>  		/*
> --
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From - Thu Nov 08 21:03:08 2018
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Subject: Re: Fwd: [PATCH] fix mapping_writably_mapped()
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To: grundler@parisc-linux.org (Grant Grundler)
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> On Wed, Dec 10, 2008 at 04:46:38PM -0500, Kyle McMartin wrote:
> > This may explain some of the userspace issues we've been seeing.
> 
> It seems to fix the issues I pointed out.
> 2.6.28-rc8 (linus' linux-2.6 git) is able to build a kernel from
> scratch without segfaulting! :)
> Previous 2.6.27 and 2.6.28 kernels that I tested weren't able to do that.

That's excellent news.  I applied it to my 2.6.22.19 tree.  My first
gcc build had an unexpected segfault, but the second try was ok.

I'll try 2.6.28-rc8 soon.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:08 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Fwd: [PATCH] fix mapping_writably_mapped()
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Kyle McMartin wrote:
> This may explain some of the userspace issues we've been seeing.

It sadly does not fix the kernel panic I reported in
http://marc.info/?l=linux-parisc&m=122877889304862&w=2
("2.6.28: BUG: soft lockup - CPU#0 stuck for 61s!")

Helge
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From - Thu Nov 08 21:03:08 2018
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Subject: Re: Fwd: [PATCH] fix mapping_writably_mapped()
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On Thu, 2008-12-11 at 22:31 +0100, Helge Deller wrote:
> Kyle McMartin wrote:
> > This may explain some of the userspace issues we've been seeing.
> 
> It sadly does not fix the kernel panic I reported in
> http://marc.info/?l=linux-parisc&m=122877889304862&w=2
> ("2.6.28: BUG: soft lockup - CPU#0 stuck for 61s!")

It's not really likely to ... what you have is too much work going on in
the locking functions.  Either because of contention or debugging.

Can you reproduce it without spinlock debugging?  If yes, then we may
have some nasty accidental contention in the flushing spinlocks.

James


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From - Thu Nov 08 21:03:08 2018
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Subject: Re: Fwd: [PATCH] fix mapping_writably_mapped()
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In-Reply-To: <20081210214638.GA28696@bombadil.infradead.org> from "Kyle McMartin" at Dec 10, 2008 04:46:38 pm
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> This may explain some of the userspace issues we've been seeing.

There are still problems.  I built 2.6.28-rc8 using James' config for ion.
In my first attempt at building GCC, sh segfaulted in copy_word_list.
The kernel and sh then got into a continuous loop of SIGSEGVs filling
the file system with log messages.

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND           
27608 dave      20   0  3484 1304  512 R  100  0.0 519:33.44 sh                 

dave@mx3210:~$ strace -p 27608
Process 27608 attached - interrupt to quit
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
rt_sigreturn()                          = 1746504
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
rt_sigreturn()                          = 1746504
...

dave@mx3210:~$ gdb /bin/sh 27608
GNU gdb (GDB) 6.8.50.20080915-cvs
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "hppa-unknown-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
(no debugging symbols found)
Attaching to program: /bin/sh, process 27608

Program received signal SIGSEGV, Segmentation fault.
Reading symbols from /lib/libncurses.so.5...(no debugging symbols found)...done.
Loaded symbols for /lib/libncurses.so.5
Reading symbols from /lib/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/libc.so.6...
(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/ld.so.1

0x0004110c in copy_word_list ()
(gdb) bt
#0  0x0004110c in copy_word_list ()
#1  0x00052a5c in ?? ()
#2  0x0003a06c in ?? ()
#3  0x00037398 in execute_command_internal ()
#4  0x00036d24 in ?? ()
#5  0x00038284 in execute_command_internal ()
#6  0x00073994 in parse_and_execute ()
#7  0x0004d810 in command_substitute ()
#8  0x00051db0 in ?? ()
#9  0x000532c8 in ?? ()
#10 0x00056f18 in expand_string_assignment ()
#11 0x00050f14 in ?? ()
#12 0x000512cc in ?? ()
#13 0x00053220 in ?? ()
#14 0x0003a06c in ?? ()
#15 0x00037398 in execute_command_internal ()
#16 0x00038608 in execute_command ()
#17 0x000382f0 in execute_command_internal ()
#18 0x00038608 in execute_command ()
#19 0x000382f0 in execute_command_internal ()
#20 0x00038608 in execute_command ()
#21 0x000382f0 in execute_command_internal ()
#22 0x00038608 in execute_command ()
---Type <return> to continue, or q <return> to quit---
#23 0x000382f0 in execute_command_internal ()
#24 0x00038608 in execute_command ()
#25 0x00037f90 in execute_command_internal ()
#26 0x00038608 in execute_command ()
#27 0x000279a8 in reader_loop ()
#28 0x000274fc in main ()
(gdb) c
Continuing.

Program received signal SIGSEGV, Segmentation fault.
0x0004110c in copy_word_list ()
(gdb) c
Continuing.

Program received signal SIGSEGV, Segmentation fault.
0x0004110c in copy_word_list ()
(gdb) p/x $pc
$1 = 0x4110c
(gdb) disass 0x410fc 0x4111c
Dump of assembler code from 0x410fc to 0x4111c:
0x000410fc <copy_word_list+20>:	movb,= r26,r3,0x41158 <copy_word_list+112>
0x00041100 <copy_word_list+24>:	ldi 0,r5
0x00041104 <copy_word_list+28>:	ldw 4(r3),r4
0x00041108 <copy_word_list+32>:	b,l 0x32be4 <make_bare_word>,rp
0x0004110c <copy_word_list+36>:	ldw 0(r4),r26
0x00041110 <copy_word_list+40>:	ldw 4(r4),r19
0x00041114 <copy_word_list+44>:	copy r5,r25
0x00041118 <copy_word_list+48>:	stw r19,4(ret0)
End of assembler dump.
(gdb) p/x $r4
$2 = 0x0
(gdb) disass
Dump of assembler code for function copy_word_list:
0x000410e8 <copy_word_list+0>:	stw rp,-14(sp)
0x000410ec <copy_word_list+4>:	ldi 0,r19
0x000410f0 <copy_word_list+8>:	stw,ma r5,40(sp)
0x000410f4 <copy_word_list+12>:	stw r4,-3c(sp)
0x000410f8 <copy_word_list+16>:	stw r3,-38(sp)
0x000410fc <copy_word_list+20>:	movb,= r26,r3,0x41158 <copy_word_list+112>
0x00041100 <copy_word_list+24>:	ldi 0,r5
0x00041104 <copy_word_list+28>:	ldw 4(r3),r4
0x00041108 <copy_word_list+32>:	b,l 0x32be4 <make_bare_word>,rp
0x0004110c <copy_word_list+36>:	ldw 0(r4),r26
0x00041110 <copy_word_list+40>:	ldw 4(r4),r19
0x00041114 <copy_word_list+44>:	copy r5,r25
0x00041118 <copy_word_list+48>:	stw r19,4(ret0)
0x0004111c <copy_word_list+52>:	b,l 0x32278 <make_word_list>,rp
0x00041120 <copy_word_list+56>:	copy ret0,r26
0x00041124 <copy_word_list+60>:	ldw 0(r3),r3
0x00041128 <copy_word_list+64>:	cmpib,<> 0,r3,0x41104 <copy_word_list+28>
0x0004112c <copy_word_list+68>:	copy ret0,r5
0x00041130 <copy_word_list+72>:	cmpib,= 0,ret0,0x41158 <copy_word_list+112>
0x00041134 <copy_word_list+76>:	copy ret0,r19
0x00041138 <copy_word_list+80>:	ldw 0(ret0),ret0
0x0004113c <copy_word_list+84>:	cmpib,= 0,ret0,0x41158 <copy_word_list+112>
---Type <return> to continue, or q <return> to quit---q
Quit
(gdb) p/x $r3
$3 = 0xd0e3c
(gdb) x/4x 0xd0e3c
0xd0e3c <error_trace_mode>:	0x00000000	0x00000000	0x000e1928	0x0019b2c8

Dec 13 01:32:21 mx3210 kernel: 
Dec 13 01:32:21 mx3210 kernel: do_page_fault() pid=27608 command='sh' type=15 address=0x00000000
Dec 13 01:32:21 mx3210 kernel: 
Dec 13 01:32:21 mx3210 kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Dec 13 01:32:21 mx3210 kernel: PSW: 00000000000011100000000000001111 Tainted: G        W 
Dec 13 01:32:21 mx3210 kernel: r00-03  00000000000e000f 00000000000d06a0 0000000000041113 00000000000d0e3c
Dec 13 01:32:21 mx3210 kernel: r04-07  0000000000000000 00000000001aa648 00000000000200b0 000000000019a508
Dec 13 01:32:21 mx3210 kernel: r08-11  00000000000d06a0 0000000000000001 00000000000c9ea0 00000000000d3b60
Dec 13 01:32:21 mx3210 kernel: r12-15  0000000000000000 0000000000000000 00000000000c9ea0 000000000000001f
Dec 13 01:32:21 mx3210 kernel: r16-19  00000000000d06a0 0000000000000001 0000000000000003 00000000001aa648
Dec 13 01:32:21 mx3210 kernel: r20-23  000000000019a1d2 0000000040762614 000000000019a1d2 0000000000000001
Dec 13 01:32:21 mx3210 kernel: r24-27  000000000000000b 0000000000000000 000000000019a588 00000000000c9ea0
Dec 13 01:32:21 mx3210 kernel: r28-31  00000000001aa648 0000000000000040 00000000faff4800 0000000000000003
Dec 13 01:32:21 mx3210 kernel: sr00-03  0000000001b4e800 0000000000000000 0000000000000000 0000000001b4e800
Dec 13 01:32:21 mx3210 kernel: sr04-07  0000000001b4e800 0000000001b4e800 0000000001b4e800 0000000001b4e800
Dec 13 01:32:21 mx3210 kernel: 
Dec 13 01:32:21 mx3210 kernel:       VZOUICununcqcqcqcqcqcrmunTDVZOUI
Dec 13 01:32:21 mx3210 kernel: FPSR: 00000000000000000000000000000000
Dec 13 01:32:21 mx3210 kernel: FPER1: 00000000
Dec 13 01:32:21 mx3210 kernel: fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
Dec 13 01:32:21 mx3210 kernel: fr04-07  fffffffffffff000 0000000000000000 ffffffffffffff9c bff0000000000000
Dec 13 01:32:21 mx3210 kernel: fr08-11  0000000000000000 00000000405b4760 000000Dec 12 23:11:11 mx3210 kernel: sd 1:0:2:0: [sdb] Mode Sense: ab 00 10 08
Dec 12 23:11:11 mx3210 kernel: sd 1:0:2:0: [sdb] Mode Sense: ab 00 10 08Dec 13 01:32:21 mx3210 kernel: 
Dec 13 01:32:21 mx3210 kernel: do_page_fault() pid=27608 command='sh' type=15 address=0x00000000
Dec 13 01:32:21 mx3210 kernel: Dec 13 01:32:21 mx3210 kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Dec 13 01:32:21 mx3210 kernel: PSW: 00000000000011100000000000001111 Tainted: G        W 
Dec 13 01:32:21 mx3210 kernel: r00-03  00000000000e000f 00000000000d06a0 0000000000041113 00000000000d0e3c
Dec 13 01:32:21 mx3210 kernel: r04-07  0000000000000000 00000000001aa648 0000000
0000200b0 000000000019a508Dec 13 01:32:21 mx3210 kernel: r08-11  00000000000d06a0 0000000000000001 0000000
0000c9ea0 00000000000d3b60Dec 13 01:32:21 mx3210 kernel: r12-15  0000000000000000 0000000000000000 0000000
0000c9ea0 000000000000001fDec 13 01:32:21 mx3210 kernel: r16-19  00000000000d06a0 0000000000000001 0000000
000000003 00000000001aa648
Dec 13 01:32:21 mx3210 kernel: r20-23  000000000019a1d2 0000000040762614 0000000
00019a1d2 0000000000000001
Dec 13 01:32:21 mx3210 kernel: r24-27  000000000000000b 0000000000000000 0000000
00019a588 00000000000c9ea0
Dec 13 01:32:21 mx3210 kernel: r28-31  00000000001aa648 0000000000000040 00000000faff4800 0000000000000003
Dec 13 01:32:21 mx3210 kernel: sr00-03  0000000001b4e800 0000000000000000 0000000000000000 0000000001b4e800
Dec 13 01:32:21 mx3210 kernel: sr04-07  0000000001b4e800 0000000001b4e800 0000000001b4e800 0000000001b4e800
Dec 13 01:32:21 mx3210 kernel: 
Dec 13 01:32:21 mx3210 kernel:       VZOUICununcqcqcqcqcqcrmunTDVZOUI
Dec 13 01:32:21 mx3210 kernel: FPSR: 00000000000000000000000000000000
Dec 13 01:32:21 mx3210 kernel: FPER1: 00000000
Dec 13 01:32:21 mx3210 kernel: fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
Dec 13 01:32:21 mx3210 kernel: fr04-07  fffffffffffff000 0000000000000000 ffffffffffffff9c bff0000000000000
Dec 13 01:32:21 mx3210 kernel: fr08-11  0000000000000000 00000000405b4760 0000000000000802 00000000405f2000
Dec 13 01:32:21 mx3210 kernel: fr12-15  00000000401c61b8 00000000405b4760 00000000401c4114 000000007f410d00
Dec 13 01:32:21 mx3210 kernel: fr16-19  000000007f4acb90 000000007f410d00 000000007f54c000 000000007f54c000
Dec 13 01:32:21 mx3210 kernel: fr20-23  00000000405b4760 00000000404a91d8 0000000000000040 0000000000000000
Dec 13 01:32:21 mx3210 kernel: fr24-27  0000000000000000 00000000405b4760 00000000405b4760 0000000000000000
Dec 13 01:32:21 mx3210 kernel: fr28-31  0000000000000803 0000000000000000 00000000405b4760 0000000000000803
Dec 13 01:32:21 mx3210 kernel: 
Dec 13 01:32:21 mx3210 kernel: IASQ: 0000000001b4e800 0000000001b4e800 IAOQ: 000000000004110f 0000000000032be7
Dec 13 01:32:21 mx3210 kernel:  IIR: 0c80109a    ISR: 0000000001b4e800  IOR: 0000000000000000
Dec 13 01:32:21 mx3210 kernel:  CPU:        1   CR30: 0000000044494000 CR31: ffffffffffffffff
Dec 13 01:32:21 mx3210 kernel:  ORIG_R28: 0000000000000000
Dec 13 01:32:21 mx3210 kernel:  IAOQ[0]: 000000000004110f
Dec 13 01:32:21 mx3210 kernel:  IAOQ[1]: 0000000000032be7
Dec 13 01:32:21 mx3210 kernel:  RP(r2): 0000000000041113
Dec 13 01:32:21 mx3210 kernel: 
Dec 13 01:32:21 mx3210 kernel: do_page_fault() pid=27608 command='sh' type=15 address=0x00000000
...

This might be a bash bug.

WORD_DESC *
copy_word (w)
     WORD_DESC *w;
{
  WORD_DESC *new_word;

  new_word = make_bare_word (w->word);
  new_word->flags = w->flags;
  return (new_word);
}

/* Copy the chain of words in LIST.  Return a pointer to
   the new chain. */
WORD_LIST *
copy_word_list (list)
     WORD_LIST *list;
{
  WORD_LIST *new_list;

  for (new_list = (WORD_LIST *)NULL; list; list = list->next)
    new_list = make_word_list (copy_word (list->word), new_list);

  return (REVERSE_LIST (new_list, WORD_LIST *));
}

There's no check that list->word isn't NULL.  However, allocation failures
are supposed to be caught by xmalloc.  So, it's not obvious how a NULL
pointer actually arises.

There's also a puzzle as to why bash tries to continue after the segv,
possibly at the faulting insn.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:09 2018
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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [RESEND] [PATCH] parisc: remove dead BIO_VMERGE_BOUNDARY and
 BIO_VMERGE_MAX_SIZE definitions
Date: Sun, 14 Dec 2008 11:44:37 +0900
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This is a resend of:

http://marc.info/?l=linux-parisc&m=122482703716617&w=2

I added Grant's ACK:

http://marc.info/?l=linux-parisc&m=122555878602851&w=2

=
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Subject: [PATCH] parisc: remove dead BIO_VMERGE_BOUNDARY and BIO_VMERGE_MAX_SIZE definitions

The block layer dropped the virtual merge feature
(b8b3e16cfe6435d961f6aaebcfd52a1ff2a988c5). BIO_VMERGE_BOUNDARY and
BIO_VMERGE_MAX_SIZE definitions are meaningless now.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
---
 arch/parisc/include/asm/io.h |    6 ------
 arch/parisc/kernel/setup.c   |    5 -----
 drivers/parisc/ccio-dma.c    |    2 --
 drivers/parisc/sba_iommu.c   |    2 --
 4 files changed, 0 insertions(+), 15 deletions(-)

diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 55ddb18..b92efb3 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -4,12 +4,6 @@
 #include <linux/types.h>
 #include <asm/pgtable.h>
 
-extern unsigned long parisc_vmerge_boundary;
-extern unsigned long parisc_vmerge_max_size;
-
-#define BIO_VMERGE_BOUNDARY	parisc_vmerge_boundary
-#define BIO_VMERGE_MAX_SIZE	parisc_vmerge_max_size
-
 #define virt_to_phys(a) ((unsigned long)__pa(a))
 #define phys_to_virt(a) __va(a)
 #define virt_to_bus virt_to_phys
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 7d27853..8d8b024 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -58,11 +58,6 @@ int parisc_bus_is_phys __read_mostly = 1;	/* Assume no IOMMU is present */
 EXPORT_SYMBOL(parisc_bus_is_phys);
 #endif
 
-/* This sets the vmerge boundary and size, it's here because it has to
- * be available on all platforms (zero means no-virtual merging) */
-unsigned long parisc_vmerge_boundary = 0;
-unsigned long parisc_vmerge_max_size = 0;
-
 void __init setup_cmdline(char **cmdline_p)
 {
 	extern unsigned int boot_args[];
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index dcc1e99..62cc21d 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1578,8 +1578,6 @@ static int __init ccio_probe(struct parisc_device *dev)
 
 	ioc_count++;
 
-	parisc_vmerge_boundary = IOVP_SIZE;
-	parisc_vmerge_max_size = BITS_PER_LONG * IOVP_SIZE;
 	parisc_has_iommu();
 	return 0;
 }
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index bc73b96..bdc9a0a 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1979,8 +1979,6 @@ sba_driver_callback(struct parisc_device *dev)
 	proc_create("sba_iommu-bitmap", 0, root, &sba_proc_bitmap_fops);
 #endif
 
-	parisc_vmerge_boundary = IOVP_SIZE;
-	parisc_vmerge_max_size = IOVP_SIZE * BITS_PER_LONG;
 	parisc_has_iommu();
 	return 0;
 }
-- 
1.5.5.GIT

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From - Thu Nov 08 21:03:09 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: [RESEND] [PATCH] parisc: remove dead BIO_VMERGE_BOUNDARY and
	BIO_VMERGE_MAX_SIZE definitions
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On Sun, Dec 14, 2008 at 11:44:37AM +0900, FUJITA Tomonori wrote:
> This is a resend of:
> 
> http://marc.info/?l=linux-parisc&m=122482703716617&w=2
> 

Sorry, somehow I missed applying this... though it's still in my ~ on
hera. weird!

Applied, cheers,
	Kyle
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New commits:
commit 14e01f8241387e4c236148bfaca77e3e546ad94d
Author: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date:   Sun Dec 14 11:44:37 2008 +0900

    parisc: remove dead BIO_VMERGE_BOUNDARY and BIO_VMERGE_MAX_SIZE definitions
    
    The block layer dropped the virtual merge feature
    (b8b3e16cfe6435d961f6aaebcfd52a1ff2a988c5). BIO_VMERGE_BOUNDARY and
    BIO_VMERGE_MAX_SIZE definitions are meaningless now.
    
    Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
    Acked-by: Grant Grundler <grundler@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From: "Thibaut VARENE" <varenet@debian.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
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On Mon, Dec 15, 2008 at 9:49 AM, Matt Taggart <taggart@debian.org> wrote:

> A c100 is _really_ slow and probably wouldn't be able to keep up as a
> buildd.

I've already offered countless times (it's in the m-l archive) to
provide buildd power from the ESIEE cluster (see
http://www.fr.parisc-linux.org/cluster.html), which is also used by a
bunch of DD to fix hppa problems. Granted, this cluster currently has
some hw issues which I'm trying to fix (hopefully with the help of
some folks in the US ;-)

> The real problem is that no one is fixing hppa kernel problems. I don't see
> much point in keeping the archive up to date if nobody is working on fixing
> the kernel (not currently and I suspect not in the future either). This has
> been stated on the debian-hppa list several times over a long period and in
> that time no one (AFAIK) has stepped up to work on it.

Sad but true, though I wouldn't say that "no one" is working; the
linux-parisc m-l shows "some" activity from a couple of developers
(Kyle McMartin, Helge Deller, to name a few)

Cheers,
T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:03:09 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.next
Subject: linux-next: manual merge of the boot-params tree
Date: Tue, 16 Dec 2008 00:20:58 +1100
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Cc: linux-next@vger.kernel.org,
	FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
	Kyle McMartin <kyle@mcmartin.ca>,
	<linux-parisc@vger.kernel.org>
To: Rusty Russell <rusty@rustcorp.com.au>
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Hi Rusty,

Today's linux-next merge of the boot-params tree got a conflict in
arch/parisc/kernel/setup.c between commit
14e01f8241387e4c236148bfaca77e3e546ad94d ("parisc: remove dead
BIO_VMERGE_BOUNDARY and BIO_VMERGE_MAX_SIZE definitions") from the parisc
tree and commit 0de5c2d9f02d2018fd671ca1015432dffa5eb338 ("param:
arch_get_boot_command_line()") from the boot-params tree.

I fixed it up (see below) and can carry the fix as necessary.
-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

diff --cc arch/parisc/kernel/setup.c
index 8d8b024,3bdf1e2..0000000
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@@ -58,7 -58,12 +58,7 @@@ int parisc_bus_is_phys __read_mostly = 
  EXPORT_SYMBOL(parisc_bus_is_phys);
  #endif
  
- void __init setup_cmdline(char **cmdline_p)
 -/* This sets the vmerge boundary and size, it's here because it has to
 - * be available on all platforms (zero means no-virtual merging) */
 -unsigned long parisc_vmerge_boundary = 0;
 -unsigned long parisc_vmerge_max_size = 0;
 -
+ void __init arch_get_boot_command_line(void)
  {
  	extern unsigned int boot_args[];
  
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From - Thu Nov 08 21:03:09 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] [RFC] fix kernel crash (protection id trap) when compiling
 ruby1.9
Date: Wed, 17 Dec 2008 23:46:05 +0100
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The Debian bugzilla has a long thread about kernel crashes when
compiling ruby1.9 on hppa. This kernel bug led even to discussions if
hppa should be dropped for lenny.
See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=478717 for details.

It's really easy to reproduce the bug, and it generates this backtrace
(interestingly two backtraces):

     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
miniruby (pid 15221): Protection id trap (code 27)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111 Not tainted
r00-03  0004000f 102a9800 101a141c 8210c388
r04-07  00000000 0020fd08 0020fd10 00000001
r08-11  00000000 8210c388 fffffff2 8210c0c8
r12-15  fb0d04c8 402cc3d8 00001000 40007000
r16-19  002120a0 00000010 0020fd90 00000001
r20-23  8210c000 00000000 0020fd0e 8210c39e
r24-27  00000000 00000001 8e7c5660 105e7a90
r28-31  0000000f 00190834 8210c500 101a12b8
sr00-03  00000000 00000000 00000000 00000847
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101a147c 101a1480
 IIR: 0ed5d240    ISR: 00000847  IOR: 0020fd0e
 CPU:        0   CR30: 8210c000 CR31: d22344f0
 ORIG_R28: 00001000
 IAOQ[0]: do_sys_poll+0x1ac/0x1b8
 IAOQ[1]: do_sys_poll+0x1b0/0x1b8
 RP(r2): do_sys_poll+0x14c/0x1b8
Backtrace:
 [<101a1574>] sys_poll+0x84/0xec
 [<10114078>] syscall_exit+0x0/0x28

Backtrace:
 [<1010fdb8>] die_if_kernel+0xe8/0x1ac
 [<10110584>] handle_interruption+0x2fc/0x598
 [<10113078>] intr_check_sig+0x0/0x34


The bug (sometimes but not always!) happens in fs/select.c:do_sys_poll()
when calling __put_user() and writing back fds[0].revents to userspace.
What I quite don't understand yet is, why does copy_from_user() [called
a few lines above the __put_user()] succeeds, and __put_user() sometimes
suddenly fails with a protection id fault.

The attached patch simply adds the lookup for a fixup handler when trap
#27 (protection id trap) happens in kernel space. This was missing in
the code path for trap #27 which is why the kernel then called
die_if_kernel() and crashed.

Even with this patch ruby1.9 may fail to compile, but at least the
kernel crashes are gone.

Any feedback welcome.

Helge

Signed-off-by: Helge Deller <deller@gmx.de>


--------------080903030906080404000306
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diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 4c771cd..70eabfe 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -43,6 +43,8 @@
 
 #include "../math-emu/math-emu.h"	/* for handle_fpe() */
 
+DECLARE_PER_CPU(struct exception_data, exception_data);
+
 #define PRINT_USER_FAULTS /* (turn this on if you want user faults to be */
 			  /*  dumped to the console via printk)          */
 
@@ -745,6 +747,41 @@ void handle_interruption(int code, struct pt_regs *regs)
 		/* Fall Through */
 	case 27: 
 		/* Data memory protection ID trap */
+		if (code == 27 && !user_mode(regs)) {
+			const struct exception_table_entry *fix;
+
+			/* mostly copied from:
+ 			   arch/parisc/mm/fault.c:do_page_fault()
+			 */
+			fix = search_exception_tables(regs->iaoq[0]);
+			printk(KERN_CRIT "BUG: Kernel Data memory protection ID"
+				" trap at %p (%pS), fix=%p\n",
+				(void*)regs->iaoq[0], (void*)regs->iaoq[0], fix);
+			if (fix) {
+				struct exception_data *d;
+
+				d = &__get_cpu_var(exception_data);
+				d->fault_ip = regs->iaoq[0];
+				d->fault_space = regs->isr;
+				d->fault_addr = regs->ior;
+
+				regs->iaoq[0] = ((fix->fixup) & ~3);
+
+				/*
+				 * NOTE: In some cases the faulting instruction
+				 * may be in the delay slot of a branch. We
+				 * don't want to take the branch, so we don't
+				 * increment iaoq[1], instead we set it to be
+				 * iaoq[0]+4, and clear the B bit in the PSW
+				 */
+
+				regs->iaoq[1] = regs->iaoq[0] + 4;
+				regs->gr[0] &= ~PSW_B; /* IPSW in gr[0] */
+
+				return;
+			}
+		}
+
 		die_if_kernel("Protection id trap", regs, code);
 		si.si_code = SEGV_MAPERR;
 		si.si_signo = SIGSEGV;

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] fix BUG: sleeping function called from invalid context at
 mm/slab.c:3044
Date: Wed, 17 Dec 2008 23:57:34 +0100
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Since unwind_frame_init_from_blocked_task() may be called from
interrupt/in_atomic context, it needs to kmalloc() memory with
GFP_ATOMIC instead of GFP_KERNEL.

This fixes this warning (ShowTasks called from sysrq handler):

BUG: sleeping function called from invalid context at mm/slab.c:3044
in_atomic(): 1, irqs_disabled(): 1, pid: 2119, name: miniruby
Backtrace:
 [<10132e78>] __might_sleep+0x4c/0x118
 [<1018f644>] kmem_cache_alloc+0x2c/0xb4
 [<1011bae0>] unwind_frame_init_from_blocked_task+0x30/0xa0
 [<1010fd3c>] parisc_show_stack+0x3c/0xac
 [<10132c7c>] show_state_filter+0x80/0xd8
 [<102f4074>] __handle_sysrq+0xd0/0x1b0
 [<102f9558>] receive_chars+0x22c/0x318
 [<102f9940>] serial8250_handle_port+0x40/0x88
 [<102f9a8c>] serial8250_interrupt+0x104/0x10c
 [<10161920>] handle_IRQ_event+0x44/0x94
 [<10161acc>] __do_IRQ+0x15c/0x1dc
 [<102c442c>] superio_interrupt+0x74/0xa8
 [<10161920>] handle_IRQ_event+0x44/0x94
 [<10161acc>] __do_IRQ+0x15c/0x1dc
 [<10110fb4>] do_cpu_irq_mask+0x90/0xbc
 [<10114068>] intr_return+0x0/0x4

Signed-off-by: Helge Deller <deller@gmx.de>

--------------090306010406000602030706
Content-Type: text/x-patch;
 name="invalid_context_fix.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="invalid_context_fix.patch"

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 6773c58..69dad5a 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -372,7 +372,7 @@ void unwind_frame_init_from_blocked_task(struct unwind_frame_info *info, struct
 	struct pt_regs *r = &t->thread.regs;
 	struct pt_regs *r2;
 
-	r2 = kmalloc(sizeof(struct pt_regs), GFP_KERNEL);
+	r2 = kmalloc(sizeof(struct pt_regs), GFP_ATOMIC);
 	if (!r2)
 		return;
 	*r2 = *r;

--------------090306010406000602030706--
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New commits:
commit 933cc210f48a36e559fe1aeefb56040b8c59ff0a
Author: Helge Deller <deller@gmx.de>
Date:   Wed Dec 17 23:57:34 2008 +0100

    parisc: fix GFP_KERNEL use while atomic in unwinder
    
    Since unwind_frame_init_from_blocked_task() may be called from
    interrupt/in_atomic context, it needs to kmalloc() memory with
    GFP_ATOMIC instead of GFP_KERNEL.
    
    This fixes this warning (ShowTasks called from sysrq handler):
    
    BUG: sleeping function called from invalid context at mm/slab.c:3044
    in_atomic(): 1, irqs_disabled(): 1, pid: 2119, name: miniruby
    Backtrace:
     [<10132e78>] __might_sleep+0x4c/0x118
     [<1018f644>] kmem_cache_alloc+0x2c/0xb4
     [<1011bae0>] unwind_frame_init_from_blocked_task+0x30/0xa0
     [<1010fd3c>] parisc_show_stack+0x3c/0xac
     [<10132c7c>] show_state_filter+0x80/0xd8
     [<102f4074>] __handle_sysrq+0xd0/0x1b0
     [<102f9558>] receive_chars+0x22c/0x318
     [<102f9940>] serial8250_handle_port+0x40/0x88
     [<102f9a8c>] serial8250_interrupt+0x104/0x10c
     [<10161920>] handle_IRQ_event+0x44/0x94
     [<10161acc>] __do_IRQ+0x15c/0x1dc
     [<102c442c>] superio_interrupt+0x74/0xa8
     [<10161920>] handle_IRQ_event+0x44/0x94
     [<10161acc>] __do_IRQ+0x15c/0x1dc
     [<10110fb4>] do_cpu_irq_mask+0x90/0xbc
     [<10114068>] intr_return+0x0/0x4
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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Subject: Re: [PATCH] fix BUG: sleeping function called from invalid context
	at mm/slab.c:3044
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On Wed, Dec 17, 2008 at 11:57:34PM +0100, Helge Deller wrote:
> Since unwind_frame_init_from_blocked_task() may be called from
> interrupt/in_atomic context, it needs to kmalloc() memory with
> GFP_ATOMIC instead of GFP_KERNEL.
> 

that's right, it used to just allocate r2 but i introduced this bug when
i killed some stack heavy things a while back.

applied, kyle
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> r20-23  8210c000 00000000 0020fd0e 8210c39e
> r24-27  00000000 00000001 8e7c5660 105e7a90
> r28-31  0000000f 00190834 8210c500 101a12b8
> sr00-03  00000000 00000000 00000000 00000847
> sr04-07  00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 101a147c 101a1480
>  IIR: 0ed5d240    ISR: 00000847  IOR: 0020fd0e
>  CPU:        0   CR30: 8210c000 CR31: d22344f0
>  ORIG_R28: 00001000
>  IAOQ[0]: do_sys_poll+0x1ac/0x1b8
>  IAOQ[1]: do_sys_poll+0x1b0/0x1b8
>  RP(r2): do_sys_poll+0x14c/0x1b8

The faulting instruction is:

dave@hiauly6:~/opt/gnu/bin$ disasm 0x0ed5d240
   0:	0e d5 d2 40 	sth r21,0(sr3,r22)

r22 is 0.  r22 being 0 is a bit wierd as revents has on offset of 6.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:09 2018
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On Wed, Dec 17, 2008 at 07:05:26PM -0500, John David Anglin wrote:
> > r20-23  8210c000 00000000 0020fd0e 8210c39e
> > r24-27  00000000 00000001 8e7c5660 105e7a90
> > r28-31  0000000f 00190834 8210c500 101a12b8
> > sr00-03  00000000 00000000 00000000 00000847
> > sr04-07  00000000 00000000 00000000 00000000
> > 
> > IASQ: 00000000 00000000 IAOQ: 101a147c 101a1480
> >  IIR: 0ed5d240    ISR: 00000847  IOR: 0020fd0e
> >  CPU:        0   CR30: 8210c000 CR31: d22344f0
> >  ORIG_R28: 00001000
> >  IAOQ[0]: do_sys_poll+0x1ac/0x1b8
> >  IAOQ[1]: do_sys_poll+0x1b0/0x1b8
> >  RP(r2): do_sys_poll+0x14c/0x1b8
> 
> The faulting instruction is:
> 
> dave@hiauly6:~/opt/gnu/bin$ disasm 0x0ed5d240
>    0:	0e d5 d2 40 	sth r21,0(sr3,r22)
> 
> r22 is 0.  r22 being 0 is a bit wierd as revents has on offset of 6.
> 

Eh? r22 is 0020fd0e... although it's easier to spot by looking at IOR
> >  IIR: 0ed5d240    ISR: 00000847  IOR: 0020fd0e

Weird.

Although, I don't think we're supposed to ever be taking a P. Id trap on
a userspace process as the kernel...
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when compiling ruby1.9
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On Wed, Dec 17, 2008 at 5:46 PM, Helge Deller <deller@gmx.de> wrote:
> The attached patch simply adds the lookup for a fixup handler when trap
> #27 (protection id trap) happens in kernel space. This was missing in
> the code path for trap #27 which is why the kernel then called
> die_if_kernel() and crashed.
>
> Even with this patch ruby1.9 may fail to compile, but at least the
> kernel crashes are gone.
>
> Any feedback welcome.

Can we avoid copying code from do_page_fault and just call do_page_fault?

Shouldn't a data protection id trap on a userspace address cause
do_page_fault to be called which triggers the lookup and transfer to
the exception table location?

Why aren't we doing this in the data protection id trap case?

I remember testing this for the compare-and-swap kernel LWS, in
particular calling with an invalid address, where the kernel must load
a userspace address, possibly fault, and jump to the exception
location to return EFAULT as the error for the compare-and-swap.

Cheers,
Carlos.
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when compiling ruby1.9
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On Wed, Dec 17, 2008 at 8:46 PM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> On Wed, Dec 17, 2008 at 5:46 PM, Helge Deller <deller@gmx.de> wrote:
>> The attached patch simply adds the lookup for a fixup handler when trap
>> #27 (protection id trap) happens in kernel space. This was missing in
>> the code path for trap #27 which is why the kernel then called
>> die_if_kernel() and crashed.
>>
>> Even with this patch ruby1.9 may fail to compile, but at least the
>> kernel crashes are gone.
>>
>> Any feedback welcome.
>
> Can we avoid copying code from do_page_fault and just call do_page_fault?
>
> Shouldn't a data protection id trap on a userspace address cause
> do_page_fault to be called which triggers the lookup and transfer to
> the exception table location?
>
> Why aren't we doing this in the data protection id trap case?

I went all the way back to 2.6.0 and the code is still the same.

We must never have generated a protection id trap against user
addresses while in the kernel, otherwise we would have noticed this
sooner.

I think your code is correct and necessary.

However! I think you should not duplicate code. Please split out this
"bit" of code into a function in mm/fault.c and call it from
handle_interruption.

Cheers,
Carlos.
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
	compiling ruby1.9
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On Wed, Dec 17, 2008 at 08:46:30PM -0500, Carlos O'Donell wrote:
> On Wed, Dec 17, 2008 at 5:46 PM, Helge Deller <deller@gmx.de> wrote:
> > The attached patch simply adds the lookup for a fixup handler when trap
> > #27 (protection id trap) happens in kernel space. This was missing in
> > the code path for trap #27 which is why the kernel then called
> > die_if_kernel() and crashed.
> >
> > Even with this patch ruby1.9 may fail to compile, but at least the
> > kernel crashes are gone.
> >
> > Any feedback welcome.
> 
> Can we avoid copying code from do_page_fault and just call do_page_fault?
> 
> Shouldn't a data protection id trap on a userspace address cause
> do_page_fault to be called which triggers the lookup and transfer to
> the exception table location?
> 

Yes, it could just fall through in this case, but I don't think that's
necessarily correct either.

> Why aren't we doing this in the data protection id trap case?
> 
> I remember testing this for the compare-and-swap kernel LWS, in
> particular calling with an invalid address, where the kernel must load
> a userspace address, possibly fault, and jump to the exception
> location to return EFAULT as the error for the compare-and-swap.
> 

Indeed, there's something more sinister going on.
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From - Thu Nov 08 21:03:10 2018
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
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> Eh? r22 is 0020fd0e... although it's easier to spot by looking at IOR
> > >  IIR: 0ed5d240    ISR: 00000847  IOR: 0020fd0e

Obviously, I can't count...

> Although, I don't think we're supposed to ever be taking a P. Id trap on
> a userspace process as the kernel...

Ok, should P and/or D be on?

Assuming the protection id isn't wrong, then the WD bit must be on.
A problem with the WD bit might explain Helge's comment.

As a start, dumping CR 8, 9, 12 and 13 might help debug the problem.

There might be a problem restoring access IDs after a cache purge or
TLB insertion.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:10 2018
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On Wed, Dec 17, 2008 at 10:02:13PM -0500, John David Anglin wrote:
> > Although, I don't think we're supposed to ever be taking a P. Id trap on
> > a userspace process as the kernel...
> 
> Ok, should P and/or D be on?
> 
> Assuming the protection id isn't wrong, then the WD bit must be on.
> A problem with the WD bit might explain Helge's comment.
> 
> As a start, dumping CR 8, 9, 12 and 13 might help debug the problem.
> 
> There might be a problem restoring access IDs after a cache purge or
> TLB insertion.
> 

I'm starting a build of ruby now, with some debugging gunk added
to dump the pid %crs, we'll see how it goes in a few hours...

re, Kyle
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On Wed, Dec 17, 2008 at 10:02:13PM -0500, John David Anglin wrote:
> > Eh? r22 is 0020fd0e... although it's easier to spot by looking at IOR
> > > >  IIR: 0ed5d240    ISR: 00000847  IOR: 0020fd0e
> 
> Obviously, I can't count...
> 
> > Although, I don't think we're supposed to ever be taking a P. Id trap on
> > a userspace process as the kernel...
> 
> Ok, should P and/or D be on?
> 

Huh... Possibly the P-bit shouldn't be on for kernel mode... the kernel
after all can scribble on whomevers pages it so chooses...

> Assuming the protection id isn't wrong, then the WD bit must be on.
> A problem with the WD bit might explain Helge's comment.
> 
> As a start, dumping CR 8, 9, 12 and 13 might help debug the problem.
> 

Building a patch to do this now, will attach it here if it builds.

> There might be a problem restoring access IDs after a cache purge or
> TLB insertion.
> 

I honestly have no idea how the protection id registers are loaded... I
thought it had something do with with space registers, but I can't
remember off the top of my head.
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
	compiling ruby1.9
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On Wed, Dec 17, 2008 at 11:46:05PM +0100, Helge Deller wrote:
> The Debian bugzilla has a long thread about kernel crashes when
> compiling ruby1.9 on hppa. This kernel bug led even to discussions if
> hppa should be dropped for lenny.
> See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=478717 for details.
> 
> It's really easy to reproduce the bug, and it generates this backtrace
> (interestingly two backtraces):
> 

When does it die? My ruby1.9 is building through to the tests (where
it's hanging without crashing...)

r, Kyle
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [PATCH] fix BUG: sleeping function called from invalid context
 at mm/slab.c:3044
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i knew there was a reason why this was a stack variable before... ;-) 
(of course, that is not ideal either)

randolph

Helge Deller wrote:
> Since unwind_frame_init_from_blocked_task() may be called from
> interrupt/in_atomic context, it needs to kmalloc() memory with
> GFP_ATOMIC instead of GFP_KERNEL.
> 
> This fixes this warning (ShowTasks called from sysrq handler):
> 
> BUG: sleeping function called from invalid context at mm/slab.c:3044
> in_atomic(): 1, irqs_disabled(): 1, pid: 2119, name: miniruby
> Backtrace:
>  [<10132e78>] __might_sleep+0x4c/0x118
>  [<1018f644>] kmem_cache_alloc+0x2c/0xb4
>  [<1011bae0>] unwind_frame_init_from_blocked_task+0x30/0xa0
>  [<1010fd3c>] parisc_show_stack+0x3c/0xac
>  [<10132c7c>] show_state_filter+0x80/0xd8
>  [<102f4074>] __handle_sysrq+0xd0/0x1b0
>  [<102f9558>] receive_chars+0x22c/0x318
>  [<102f9940>] serial8250_handle_port+0x40/0x88
>  [<102f9a8c>] serial8250_interrupt+0x104/0x10c
>  [<10161920>] handle_IRQ_event+0x44/0x94
>  [<10161acc>] __do_IRQ+0x15c/0x1dc
>  [<102c442c>] superio_interrupt+0x74/0xa8
>  [<10161920>] handle_IRQ_event+0x44/0x94
>  [<10161acc>] __do_IRQ+0x15c/0x1dc
>  [<10110fb4>] do_cpu_irq_mask+0x90/0xbc
>  [<10114068>] intr_return+0x0/0x4
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 

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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when compiling ruby1.9
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On Wed, Dec 17, 2008 at 9:36 PM, Kyle McMartin <kyle@infradead.org> wrote:
> On Wed, Dec 17, 2008 at 08:46:30PM -0500, Carlos O'Donell wrote:
>> On Wed, Dec 17, 2008 at 5:46 PM, Helge Deller <deller@gmx.de> wrote:
>> > The attached patch simply adds the lookup for a fixup handler when trap
>> > #27 (protection id trap) happens in kernel space. This was missing in
>> > the code path for trap #27 which is why the kernel then called
>> > die_if_kernel() and crashed.
>> >
>> > Even with this patch ruby1.9 may fail to compile, but at least the
>> > kernel crashes are gone.
>> >
>> > Any feedback welcome.
>>
>> Can we avoid copying code from do_page_fault and just call do_page_fault?
>>
>> Shouldn't a data protection id trap on a userspace address cause
>> do_page_fault to be called which triggers the lookup and transfer to
>> the exception table location?
>>
>
> Yes, it could just fall through in this case, but I don't think that's
> necessarily correct either.

Shouldn't it always be wrong to call die_if_kernel on protection id
trap without searching the exception tables? This is exactly what
happens in the case of trap 27.

>> I remember testing this for the compare-and-swap kernel LWS, in
>> particular calling with an invalid address, where the kernel must load
>> a userspace address, possibly fault, and jump to the exception
>> location to return EFAULT as the error for the compare-and-swap.
>
> Indeed, there's something more sinister going on.

It might be that a different fault is generated?

I ran my test-lws program again this morning and it correctly returns
EFAULT which means the exception handling should be working, *but* I
don't know which trap was generated.

The ldw could have generated a data tlb miss fault/data page fault
trap, and that is correctly handled.

A data address memory protection id trap only happens if:
- PSW P-bit is 1.
- Prot. ID check fails? (What memory has prot id checks on it?)
- One of load/Store/Ldcw/cache purge references the memory.

Cheers,
Carlos.
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when	compiling
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-------- Original-Nachricht --------
> On Wed, Dec 17, 2008 at 11:46:05PM +0100, Helge Deller wrote:
> > The Debian bugzilla has a long thread about kernel crashes when
> > compiling ruby1.9 on hppa. This kernel bug led even to discussions =
if
> > hppa should be dropped for lenny.
> > See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D478717 for d=
etails.
> >=20
> > It's really easy to reproduce the bug, and it generates this backtr=
ace
> > (interestingly two backtraces):
>=20
> When does it die? My ruby1.9 is building through to the tests (where
> it's hanging without crashing...)

If it does not happen directly for you, just try a few times/cycles, e.=
g. make, make clean in the build directory.
Even killing the hanging miniruby processes can make the kernel die (wh=
en my patch wasn't applied). With the patch it stays hanging.

Helge
--=20
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when compiling
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> On Wed, Dec 17, 2008 at 8:46 PM, Carlos O'Donell
> > Can we avoid copying code from do_page_fault and just call
> do_page_fault?
=2E..
> However! I think you should not duplicate code. Please split out this
> "bit" of code into a function in mm/fault.c and call it from
> handle_interruption.

Sure. This patch was just meant to be short and easy understandable for=
 review of the problem itself and without other noise like splitting ou=
t a function...

Helge
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From: Kyle McMartin <kyle@infradead.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
	compiling ruby1.9
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On Thu, Dec 18, 2008 at 02:09:40PM +0100, Helge Deller wrote:
> -------- Original-Nachricht --------
> > On Wed, Dec 17, 2008 at 11:46:05PM +0100, Helge Deller wrote:
> > > The Debian bugzilla has a long thread about kernel crashes when
> > > compiling ruby1.9 on hppa. This kernel bug led even to discussions if
> > > hppa should be dropped for lenny.
> > > See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=478717 for details.
> > > 
> > > It's really easy to reproduce the bug, and it generates this backtrace
> > > (interestingly two backtraces):
> > 
> > When does it die? My ruby1.9 is building through to the tests (where
> > it's hanging without crashing...)
> 
> If it does not happen directly for you, just try a few times/cycles, e.g. make, make clean in the build directory.
> Even killing the hanging miniruby processes can make the kernel die (when my patch wasn't applied). With the patch it stays hanging.
>

Aside from the testsuite hanging it seems to be building fine for me no
matter how many times I let it go...

making ruby1.9
make[1]: Entering directory `/home/kyle/src/ruby1.9-1.9.0.2'
cc -fno-strict-aliasing -g -g -O2 -O2 -g -Wall -Wno-parentheses  -fPIC
-L.  -rdynamic -Wl,-export-dynamic   main.o  -lruby1.9 -lpthread -lrt
-ldl -lcrypt -lm   -o ruby1.9
make[1]: Leaving directory `/home/kyle/src/ruby1.9-1.9.0.2'

Let me debootstrap on another machine and try it there, sigh.
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when compiling
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> > On Wed, Dec 17, 2008 at 8:46 PM, Carlos O'Donell
> > > Can we avoid copying code from do_page_fault and just call
> > do_page_fault?
> ...
> > However! I think you should not duplicate code. Please split out this
> > "bit" of code into a function in mm/fault.c and call it from
> > handle_interruption.
> 
> Sure. This patch was just meant to be short and easy understandable for review of the problem itself and without other noise like splitting out a function...

>From the documentation, it appears to me that a protection id trap should
be treated differently from a data TLB miss/data page fault.  The latter can
potentially be fixed with TLB insertion.  I don't think a protection ID trap
can be fixed...

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Dec 18, 2008 at 10:28 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> From the documentation, it appears to me that a protection id trap should
> be treated differently from a data TLB miss/data page fault.  The latter can
> potentially be fixed with TLB insertion.  I don't think a protection ID trap
> can be fixed...

Yes, I think that is also true.

What if, after a context switch we have stale TLB entry with an access
ID from another process? When the kernel tries to write to the user
address the current protection ids don't match the page's access id
and we generate a protection id trap.

Cheers,
Carlos.
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On Wed, Dec 17, 2008 at 11:04 PM, Kyle McMartin <kyle@infradead.org> wrote:
> On Wed, Dec 17, 2008 at 10:02:13PM -0500, John David Anglin wrote:
>> > Eh? r22 is 0020fd0e... although it's easier to spot by looking at IOR
>> > > >  IIR: 0ed5d240    ISR: 00000847  IOR: 0020fd0e
>>
>> Obviously, I can't count...
>>
>> > Although, I don't think we're supposed to ever be taking a P. Id trap on
>> > a userspace process as the kernel...
>>
>> Ok, should P and/or D be on?
>>
>
> Huh... Possibly the P-bit shouldn't be on for kernel mode... the kernel
> after all can scribble on whomevers pages it so chooses...

IMO the kernel should run with the P-Bit on.

Disabling the P-Bit could potentially mask stale TLB entry bugs.

Imagine this scenario:
1. Context switch to process A, setup protection ids, setup TLB entries.
2. Context switch to process B, setup protection ids, incorrectly
setup TLB entries (entries from process A remain).
3. Kernel tries to access process B's page but triggers TLB entry for
process A and gets a data protection id trap.

The trap in #3 is correct since we used a stale TLB entry.

What I don't know is this: Are all of process A's tlb entries purged
at context switch? Do they have to be?

Do we implement lazy tlb flushing? Do process A's tlb entries only get
flushed when they trigger a data protection id trap?

>> There might be a problem restoring access IDs after a cache purge or
>> TLB insertion.
>>
>
> I honestly have no idea how the protection id registers are loaded... I
> thought it had something do with with space registers, but I can't
> remember off the top of my head.

I would imagine protection id registers are loaded at every context switch?

Do threads have the same protection id register values (and the same
space register) such that they can access the same pages?

c.
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Subject: dumping pid registers on panic
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diff --git a/arch/parisc/include/asm/assembly.h b/arch/parisc/include/asm/assembly.h
index ffb2088..b152733 100644
--- a/arch/parisc/include/asm/assembly.h
+++ b/arch/parisc/include/asm/assembly.h
@@ -447,6 +447,11 @@
 	mtctl	 %r0,	%cr18
 	SAVE_CR  (%cr18, PT_IAOQ1(\regs))
 
+	SAVE_CR	 (%cr8,  PT_PID0(\regs))
+	SAVE_CR	 (%cr9,  PT_PID1(\regs))
+	SAVE_CR	 (%cr12, PT_PID2(\regs))
+	SAVE_CR	 (%cr13, PT_PID3(\regs))
+
 #ifdef CONFIG_64BIT
 	/* cr11 (sar) is a funny one.  5 bits on PA1.1 and 6 bit on PA2.0
 	 * For PA2.0 mtsar or mtctl always write 6 bits, but mfctl only
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index 699cf8e..f3990fb 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -220,6 +220,10 @@ int main(void)
 	DEFINE(PT_SR5, offsetof(struct pt_regs, sr[ 5]));
 	DEFINE(PT_SR6, offsetof(struct pt_regs, sr[ 6]));
 	DEFINE(PT_SR7, offsetof(struct pt_regs, sr[ 7]));
+	DEFINE(PT_PID0, offsetof(struct pt_regs, protid[0]));
+	DEFINE(PT_PID1, offsetof(struct pt_regs, protid[1]));
+	DEFINE(PT_PID2, offsetof(struct pt_regs, protid[2]));
+	DEFINE(PT_PID3, offsetof(struct pt_regs, protid[3]));
 	DEFINE(PT_IASQ0, offsetof(struct pt_regs, iasq[0]));
 	DEFINE(PT_IASQ1, offsetof(struct pt_regs, iasq[1]));
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 4c771cd..e3effd9 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -91,6 +91,34 @@ static void print_gr(char *level, struct pt_regs *regs)
 		PRINTREGS(level, regs->gr, "r", RFMT, i);
 }
 
+static u32 __get_pid_from_cr(struct pt_regs *regs, int i)
+{
+#ifdef CONFIG_64BIT
+	return (regs->protid[(i&1?i^1:i)>>1] >> (i&1?32:0)) & 0xffffffff;
+#else
+	return regs->cr[pid_cr[i]];
+#endif /*CONFIG_64BIT*/
+}
+
+#ifdef CONFIG_64BIT
+# define MAX_PROT_IDS	8
+#else
+# define MAX_PROT_IDS	4
+#endif /*CONFIG_64BIT*/
+
+static void print_pids(char *level, struct pt_regs *regs)
+{
+	int i;
+
+#define PROTID(x)	__get_pid_from_cr(regs, x)
+	for (i = 0; i < MAX_PROT_IDS; i += 4) {
+		printk("%sprot_id%d-%d    %08x %08x %08x %08x\n",
+			level, i, i+3, PROTID(i), PROTID(i+1), PROTID(i+2),
+			PROTID(i+3));
+	}
+#undef PROTID
+}
+
 static void print_fr(char *level, struct pt_regs *regs)
 {
 	int i;
@@ -281,6 +309,7 @@ KERN_CRIT "                     ||     ||\n");
 	current->thread.flags |= PARISC_KERNEL_DEATH;
 
 	show_regs(regs);
+	print_pids(KERN_CRIT, regs);
 	dump_stack();
 	add_taint(TAINT_DIE);
 
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On Thu, Dec 18, 2008 at 11:44 AM, Kyle McMartin <kyle@infradead.org> wrote:
> diff --git a/arch/parisc/include/asm/assembly.h b/arch/parisc/include/asm/assembly.h
> index ffb2088..b152733 100644
> --- a/arch/parisc/include/asm/assembly.h
> +++ b/arch/parisc/include/asm/assembly.h
> @@ -447,6 +447,11 @@
>        mtctl    %r0,   %cr18
>        SAVE_CR  (%cr18, PT_IAOQ1(\regs))
>
> +       SAVE_CR  (%cr8,  PT_PID0(\regs))
> +       SAVE_CR  (%cr9,  PT_PID1(\regs))
> +       SAVE_CR  (%cr12, PT_PID2(\regs))
> +       SAVE_CR  (%cr13, PT_PID3(\regs))

In a 64-bit kernel (W-bit set to 1) these registers are 64-bits in
width and each one contains 2 pids?

e.g.
CR8 = pid1, pid2
CR9 = pid3, pid4
CR12 = pid5, pid6
CR13 = pid7, pid8

The docs say the pids can be from 16-32 bits wide, but the true length
is implementation dependent.

Cheers,
Carlos.
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Subject: Re: dumping pid registers on panic
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On Thu, Dec 18, 2008 at 11:44 AM, Kyle McMartin <kyle@infradead.org> wrote:
> +static u32 __get_pid_from_cr(struct pt_regs *regs, int i)
> +{
> +#ifdef CONFIG_64BIT
> +       return (regs->protid[(i&1?i^1:i)>>1] >> (i&1?32:0)) & 0xffffffff;
> +#else
> +       return regs->cr[pid_cr[i]];
> +#endif /*CONFIG_64BIT*/
> +}

Oh, I see you are too clever for me today. Thanks.

c.
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On Wed, Dec 17, 2008 at 11:04:00PM -0500, Kyle McMartin wrote:
> > There might be a problem restoring access IDs after a cache purge or
> > TLB insertion.
> > 
> 
> I honestly have no idea how the protection id registers are loaded... I
> thought it had something do with with space registers, but I can't
> remember off the top of my head.

For future reference, in mmu_context.h. Bloody tricky mtctl() macro
doesn't take a prefix, just the numeric cr #.
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On Thu, Dec 18, 2008 at 1:28 PM, Kyle McMartin <kyle@infradead.org> wrote:
> On Wed, Dec 17, 2008 at 11:04:00PM -0500, Kyle McMartin wrote:
>> > There might be a problem restoring access IDs after a cache purge or
>> > TLB insertion.
>> >
>>
>> I honestly have no idea how the protection id registers are loaded... I
>> thought it had something do with with space registers, but I can't
>> remember off the top of my head.
>
> For future reference, in mmu_context.h. Bloody tricky mtctl() macro
> doesn't take a prefix, just the numeric cr #.

Evil.

Helge,

Can you cleanup your patch and resubmit. I think your patch is a good
belt-and-suspenders patch. The kernel should not fault on a protection
id trap taken while writing to a userspace address (even if such a
scenario indicates a possible bug in the mm context switching code).

Cheers,
Carlos.
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> > For future reference, in mmu_context.h. Bloody tricky mtctl() macro
> > doesn't take a prefix, just the numeric cr #.
> 
> Evil.

If this is a problem with the WD bit, the problem is likely here:

        mtctl(context >> (SPACEID_SHIFT - 1),8);

It's possible this might set the WD bit depending on the alignment
of context and the value of SPACEID_SHIFT on your machine.  If you
can duplicate, maybe add a BUG_ON.  On hppa64, all structs are passed
by value, so the alignment of context  may only be BIGGEST_ALIGNMENT.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:11 2018
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On Fri, Dec 19, 2008 at 11:13 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> > For future reference, in mmu_context.h. Bloody tricky mtctl() macro
>> > doesn't take a prefix, just the numeric cr #.
>>
>> Evil.
>
> If this is a problem with the WD bit, the problem is likely here:
>
>        mtctl(context >> (SPACEID_SHIFT - 1),8);
>
> It's possible this might set the WD bit depending on the alignment
> of context and the value of SPACEID_SHIFT on your machine.  If you
> can duplicate, maybe add a BUG_ON.  On hppa64, all structs are passed
> by value, so the alignment of context  may only be BIGGEST_ALIGNMENT.

The value of context is a space id (the value returned by alloc_sid())
and is not related to any alignment?

Cheers,
Carlos.
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From - Thu Nov 08 21:03:11 2018
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On Fri, Dec 19, 2008 at 11:23:39AM -0500, Carlos O'Donell wrote:
> On Fri, Dec 19, 2008 at 11:13 AM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> >> > For future reference, in mmu_context.h. Bloody tricky mtctl() macro
> >> > doesn't take a prefix, just the numeric cr #.
> >>
> >> Evil.
> >
> > If this is a problem with the WD bit, the problem is likely here:
> >
> >        mtctl(context >> (SPACEID_SHIFT - 1),8);
> >
> > It's possible this might set the WD bit depending on the alignment
> > of context and the value of SPACEID_SHIFT on your machine.  If you
> > can duplicate, maybe add a BUG_ON.  On hppa64, all structs are passed
> > by value, so the alignment of context  may only be BIGGEST_ALIGNMENT.
> 
> The value of context is a space id (the value returned by alloc_sid())
> and is not related to any alignment?

It's a typedef to an unsigned long. I'm not sure we've seen this on a
64-bit kernel (which is the SPACEID_SHIFT one.)

On a 32-bit kernel (where I've been able to reproduce this) we do a
leftshift by one, so the WD bit is guaranteed to be 0.

cheers, Kyle
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From - Thu Nov 08 21:03:11 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
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Cc: "John David Anglin" <dave@hiauly1.hia.nrc.ca>, deller@gmx.de,
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To: "Kyle McMartin" <kyle@infradead.org>
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On Fri, Dec 19, 2008 at 11:28 AM, Kyle McMartin <kyle@infradead.org> wrote:
> On Fri, Dec 19, 2008 at 11:23:39AM -0500, Carlos O'Donell wrote:
>> On Fri, Dec 19, 2008 at 11:13 AM, John David Anglin
>> <dave@hiauly1.hia.nrc.ca> wrote:
>> >> > For future reference, in mmu_context.h. Bloody tricky mtctl() macro
>> >> > doesn't take a prefix, just the numeric cr #.
>> >>
>> >> Evil.
>> >
>> > If this is a problem with the WD bit, the problem is likely here:
>> >
>> >        mtctl(context >> (SPACEID_SHIFT - 1),8);
>> >
>> > It's possible this might set the WD bit depending on the alignment
>> > of context and the value of SPACEID_SHIFT on your machine.  If you
>> > can duplicate, maybe add a BUG_ON.  On hppa64, all structs are passed
>> > by value, so the alignment of context  may only be BIGGEST_ALIGNMENT.
>>
>> The value of context is a space id (the value returned by alloc_sid())
>> and is not related to any alignment?
>
> It's a typedef to an unsigned long. I'm not sure we've seen this on a
> 64-bit kernel (which is the SPACEID_SHIFT one.)
>
> On a 32-bit kernel (where I've been able to reproduce this) we do a
> leftshift by one, so the WD bit is guaranteed to be 0.

John has a good point though, we might as well assert that?

c.
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
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Cc: "John David Anglin" <dave@hiauly1.hia.nrc.ca>, deller@gmx.de,
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On Fri, Dec 19, 2008 at 11:35 AM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> On Fri, Dec 19, 2008 at 11:28 AM, Kyle McMartin <kyle@infradead.org> wrote:
>> On Fri, Dec 19, 2008 at 11:23:39AM -0500, Carlos O'Donell wrote:
>>> On Fri, Dec 19, 2008 at 11:13 AM, John David Anglin
>>> <dave@hiauly1.hia.nrc.ca> wrote:
>>> >> > For future reference, in mmu_context.h. Bloody tricky mtctl() macro
>>> >> > doesn't take a prefix, just the numeric cr #.
>>> >>
>>> >> Evil.
>>> >
>>> > If this is a problem with the WD bit, the problem is likely here:
>>> >
>>> >        mtctl(context >> (SPACEID_SHIFT - 1),8);
>>> >
>>> > It's possible this might set the WD bit depending on the alignment
>>> > of context and the value of SPACEID_SHIFT on your machine.  If you
>>> > can duplicate, maybe add a BUG_ON.  On hppa64, all structs are passed
>>> > by value, so the alignment of context  may only be BIGGEST_ALIGNMENT.
>>>
>>> The value of context is a space id (the value returned by alloc_sid())
>>> and is not related to any alignment?
>>
>> It's a typedef to an unsigned long. I'm not sure we've seen this on a
>> 64-bit kernel (which is the SPACEID_SHIFT one.)
>>
>> On a 32-bit kernel (where I've been able to reproduce this) we do a
>> leftshift by one, so the WD bit is guaranteed to be 0.
>
> John has a good point though, we might as well assert that?

In alloc_sid() when we allocate the space id?

c.
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From - Thu Nov 08 21:03:11 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
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On Fri, Dec 19, 2008 at 11:36:33AM -0500, Carlos O'Donell wrote:
> On Fri, Dec 19, 2008 at 11:35 AM, Carlos O'Donell
> <carlos@systemhalted.org> wrote:
> > On Fri, Dec 19, 2008 at 11:28 AM, Kyle McMartin <kyle@infradead.org> wrote:
> >> On Fri, Dec 19, 2008 at 11:23:39AM -0500, Carlos O'Donell wrote:
> >>> On Fri, Dec 19, 2008 at 11:13 AM, John David Anglin
> >>> <dave@hiauly1.hia.nrc.ca> wrote:
> >>> >> > For future reference, in mmu_context.h. Bloody tricky mtctl() macro
> >>> >> > doesn't take a prefix, just the numeric cr #.
> >>> >>
> >>> >> Evil.
> >>> >
> >>> > If this is a problem with the WD bit, the problem is likely here:
> >>> >
> >>> >        mtctl(context >> (SPACEID_SHIFT - 1),8);
> >>> >
> >>> > It's possible this might set the WD bit depending on the alignment
> >>> > of context and the value of SPACEID_SHIFT on your machine.  If you
> >>> > can duplicate, maybe add a BUG_ON.  On hppa64, all structs are passed
> >>> > by value, so the alignment of context  may only be BIGGEST_ALIGNMENT.
> >>>
> >>> The value of context is a space id (the value returned by alloc_sid())
> >>> and is not related to any alignment?
> >>
> >> It's a typedef to an unsigned long. I'm not sure we've seen this on a
> >> 64-bit kernel (which is the SPACEID_SHIFT one.)
> >>
> >> On a 32-bit kernel (where I've been able to reproduce this) we do a
> >> leftshift by one, so the WD bit is guaranteed to be 0.
> >
> > John has a good point though, we might as well assert that?
> 
> In alloc_sid() when we allocate the space id?
> 

Meh. > >>> >        mtctl(context >> (SPACEID_SHIFT - 1),8);

SPACEID_SHIFT is the number of spaceid bits, which is 32 on 64-bit.

I suspect what this is trying to do, is put it in the rightmost half of
the register, so as long as context is shifted left already, (which it
is.)

When you cancel out the SPACEID_SHIFT in alloc_sid, and here in
load_context, you end up with the same mtctl(context << 1, 8) as on
32-bit.

re, Kyle
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On Fri, Dec 19, 2008 at 11:44 AM, Kyle McMartin <kyle@infradead.org> wrote:
> SPACEID_SHIFT is the number of spaceid bits, which is 32 on 64-bit.

On 64-bit SPACEID_SHIFT is 11 bits. Verified by hand and by gcc -E/-dM
and test program.

On 32-bit SPACEID_SHIFT is 0 bits. Verified by hand.

> I suspect what this is trying to do, is put it in the rightmost half of
> the register, so as long as context is shifted left already, (which it
> is.)
>
> When you cancel out the SPACEID_SHIFT in alloc_sid, and here in
> load_context, you end up with the same mtctl(context << 1, 8) as on
> 32-bit.

Yes, and that keeps the WD bit clear.

Cheers,
Carlos.
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On Fri, Dec 19, 2008 at 12:28:40PM -0500, Carlos O'Donell wrote:
> On Fri, Dec 19, 2008 at 11:44 AM, Kyle McMartin <kyle@infradead.org> wrote:
> > SPACEID_SHIFT is the number of spaceid bits, which is 32 on 64-bit.
> 
> On 64-bit SPACEID_SHIFT is 11 bits. Verified by hand and by gcc -E/-dM
> and test program.
> 
> On 32-bit SPACEID_SHIFT is 0 bits. Verified by hand.
> 

I just assumed MAX_ADDRBITS was 64. Anyway the point is moot.
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On Fri, Dec 19, 2008 at 12:33 PM, Kyle McMartin <kyle@infradead.org> wrote:
> On Fri, Dec 19, 2008 at 12:28:40PM -0500, Carlos O'Donell wrote:
>> On Fri, Dec 19, 2008 at 11:44 AM, Kyle McMartin <kyle@infradead.org> wrote:
>> > SPACEID_SHIFT is the number of spaceid bits, which is 32 on 64-bit.
>>
>> On 64-bit SPACEID_SHIFT is 11 bits. Verified by hand and by gcc -E/-dM
>> and test program.
>>
>> On 32-bit SPACEID_SHIFT is 0 bits. Verified by hand.
>>
>
> I just assumed MAX_ADDRBITS was 64. Anyway the point is moot.
>

I was just crossing the T's and dotting the I's. In case we need to
remember what SPACEID_SHIFT value was if we see something sketchy.

On 64-bit if you are not using 4kb pages, then SPACEID_SHIFT is 0 bits
like a 32-bit kernel.

c.
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On Fri, Dec 19, 2008 at 12:36:15PM -0500, Carlos O'Donell wrote:
> On Fri, Dec 19, 2008 at 12:33 PM, Kyle McMartin <kyle@infradead.org> wrote:
> > On Fri, Dec 19, 2008 at 12:28:40PM -0500, Carlos O'Donell wrote:
> >> On Fri, Dec 19, 2008 at 11:44 AM, Kyle McMartin <kyle@infradead.org> wrote:
> >> > SPACEID_SHIFT is the number of spaceid bits, which is 32 on 64-bit.
> >>
> >> On 64-bit SPACEID_SHIFT is 11 bits. Verified by hand and by gcc -E/-dM
> >> and test program.
> >>
> >> On 32-bit SPACEID_SHIFT is 0 bits. Verified by hand.
> >>
> >
> > I just assumed MAX_ADDRBITS was 64. Anyway the point is moot.
> >
> 
> I was just crossing the T's and dotting the I's. In case we need to
> remember what SPACEID_SHIFT value was if we see something sketchy.
> 
> On 64-bit if you are not using 4kb pages, then SPACEID_SHIFT is 0 bits
> like a 32-bit kernel.
> 

That's a bug, and explains one of the reasons why !4K pages are broken.
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On Fri, Dec 19, 2008 at 12:39:31PM -0500, Kyle McMartin wrote:
> On Fri, Dec 19, 2008 at 12:36:15PM -0500, Carlos O'Donell wrote:
> > On Fri, Dec 19, 2008 at 12:33 PM, Kyle McMartin <kyle@infradead.org> wrote:
> > > On Fri, Dec 19, 2008 at 12:28:40PM -0500, Carlos O'Donell wrote:
> > >> On Fri, Dec 19, 2008 at 11:44 AM, Kyle McMartin <kyle@infradead.org> wrote:
> > >> > SPACEID_SHIFT is the number of spaceid bits, which is 32 on 64-bit.
> > >>
> > >> On 64-bit SPACEID_SHIFT is 11 bits. Verified by hand and by gcc -E/-dM
> > >> and test program.
> > >>
> > >> On 32-bit SPACEID_SHIFT is 0 bits. Verified by hand.
> > >>
> > >
> > > I just assumed MAX_ADDRBITS was 64. Anyway the point is moot.
> > >
> > 
> > I was just crossing the T's and dotting the I's. In case we need to
> > remember what SPACEID_SHIFT value was if we see something sketchy.
> > 
> > On 64-bit if you are not using 4kb pages, then SPACEID_SHIFT is 0 bits
> > like a 32-bit kernel.
> > 
> 
> That's a bug, and explains one of the reasons why !4K pages are broken.
> 

Or rather not, my thinking being that context << 1 might end up being
33-bits, but I forgot we clip spaceids to the width of the protection
registers, so this can't happen.
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On Fri, Dec 19, 2008 at 12:42 PM, Kyle McMartin <kyle@infradead.org> wrote:
> Or rather not, my thinking being that context << 1 might end up being
> 33-bits, but I forgot we clip spaceids to the width of the protection
> registers, so this can't happen.

Yes, that is correct, we only use 17-bit space ids on PA 2.0 (18-bits
implemented) and 14-bit space ids on PA 1.1 (15-bits implemented on
average). I assume we reserve the last bit for the rightmost WD-bit.
Therefore context << 1 yields at most 18-bits.

c.
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From - Thu Nov 08 21:03:12 2018
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From: Kyle McMartin <kyle@infradead.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
	compiling ruby1.9
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To: Helge Deller <deller@gmx.de>
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On Wed, Dec 17, 2008 at 11:46:05PM +0100, Helge Deller wrote:
>

Honestly, I can't decide whether to apply this. It really should never
happen in the kernel, since the kernel can guarantee it won't get the
access rights failure (highest privilege level, and can set %sr and
%protid to whatever it wants.)

It really genuinely is a bug that probably should panic the kernel. The
only precedent I can easily see is x86 fixing up a bad iret with a
general protection fault, which is more or less analogous to code 27
here.

On the other hand, taking the exception on a userspace access really
isn't all that critical, and there's fundamentally little reason for the
kernel not to SIGSEGV the process, and continue...

Argh.

(btw, I've instrumented my do_sys_poll with a pile of assertions that
 %cr8 << 1 == %sr3 == current->mm.context... let's see if where we're
 getting corrupted is deterministic, though, I would guess that it won't
 be.)

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 4878b95..1c6dbb6 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -241,4 +241,6 @@ unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned lo
 #define __copy_to_user_inatomic __copy_to_user
 #define __copy_from_user_inatomic __copy_from_user
 
+int fixup_exception(struct pt_regs *regs);
+
 #endif /* __PARISC_UACCESS_H */
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 4c771cd..548ba0c 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -745,6 +745,10 @@ void handle_interruption(int code, struct pt_regs *regs)
 		/* Fall Through */
 	case 27: 
 		/* Data memory protection ID trap */
+		if (code == 27 && !user_mode(regs) &&
+			fixup_exception(regs))
+			return;
+
 		die_if_kernel("Protection id trap", regs, code);
 		si.si_code = SEGV_MAPERR;
 		si.si_signo = SIGSEGV;
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index b2e3e9a..92c7fa4 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -139,13 +139,41 @@ parisc_acctyp(unsigned long code, unsigned int inst)
 			}
 #endif
 
+int fixup_exception(struct pt_regs *regs)
+{
+	const struct exception_table_entry *fix;
+
+	fix = search_exception_tables(regs->iaoq[0]);
+	if (fix) {
+		struct exception_data *d;
+		d = &__get_cpu_var(exception_data);
+		d->fault_ip = regs->iaoq[0];
+		d->fault_space = regs->isr;
+		d->fault_addr = regs->ior;
+
+		regs->iaoq[0] = ((fix->fixup) & ~3);
+		/*
+		 * NOTE: In some cases the faulting instruction
+		 * may be in the delay slot of a branch. We
+		 * don't want to take the branch, so we don't
+		 * increment iaoq[1], instead we set it to be
+		 * iaoq[0]+4, and clear the B bit in the PSW
+		 */
+		regs->iaoq[1] = regs->iaoq[0] + 4;
+		regs->gr[0] &= ~PSW_B; /* IPSW in gr[0] */
+
+		return 1;
+	}
+
+	return 0;
+}
+
 void do_page_fault(struct pt_regs *regs, unsigned long code,
 			      unsigned long address)
 {
 	struct vm_area_struct *vma, *prev_vma;
 	struct task_struct *tsk = current;
 	struct mm_struct *mm = tsk->mm;
-	const struct exception_table_entry *fix;
 	unsigned long acc_type;
 	int fault;
 
@@ -229,32 +257,8 @@ bad_area:
 
 no_context:
 
-	if (!user_mode(regs)) {
-		fix = search_exception_tables(regs->iaoq[0]);
-
-		if (fix) {
-			struct exception_data *d;
-
-			d = &__get_cpu_var(exception_data);
-			d->fault_ip = regs->iaoq[0];
-			d->fault_space = regs->isr;
-			d->fault_addr = regs->ior;
-
-			regs->iaoq[0] = ((fix->fixup) & ~3);
-
-			/*
-			 * NOTE: In some cases the faulting instruction
-			 * may be in the delay slot of a branch. We
-			 * don't want to take the branch, so we don't
-			 * increment iaoq[1], instead we set it to be
-			 * iaoq[0]+4, and clear the B bit in the PSW
-			 */
-
-			regs->iaoq[1] = regs->iaoq[0] + 4;
-			regs->gr[0] &= ~PSW_B; /* IPSW in gr[0] */

From - Thu Nov 08 21:03:12 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when	compiling
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Kyle McMartin wrote:
> Honestly, I can't decide whether to apply this. It really should never
> happen in the kernel, since the kernel can guarantee it won't get the
> access rights failure (highest privilege level, and can set %sr and
> %protid to whatever it wants.)

Yes, that's the problem.
We catch a bug in the kernel which shouldn't be there (and which we
can't find yet).
If it wouldn't be there, we wouldn't need this patch..
Chicken and egg problem.

> It really genuinely is a bug that probably should panic the kernel. The
> only precedent I can easily see is x86 fixing up a bad iret with a
> general protection fault, which is more or less analogous to code 27
> here.
> 
> On the other hand, taking the exception on a userspace access really
> isn't all that critical, and there's fundamentally little reason for the
> kernel not to SIGSEGV the process, and continue...
> 
> Argh.

Argh. Argh :-)


> (btw, I've instrumented my do_sys_poll with a pile of assertions that
>  %cr8 << 1 == %sr3 == current->mm.context... let's see if where we're
>  getting corrupted is deterministic, though, I would guess that it won't
>  be.)

I'll continue to debug as well. I have some more ideas left to try...

Thanks for cleaning up my patch and splitting out the fixup_exception()
code.
Your patch is fine and I think you should apply it (with one minor
addition - see below).
The reason I think why you should apply it is, that we shouldn't let the
kernel crash on (correct) userspace apps.
Maybe adding a comment that this check in trap #27 should be removed
when the bug is fixed would be good though.

> diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
> index 4878b95..1c6dbb6 100644
> --- a/arch/parisc/include/asm/uaccess.h
> +++ b/arch/parisc/include/asm/uaccess.h
> @@ -745,6 +745,10 @@ void handle_interruption(int code, struct pt_regs *regs)
>  		/* Fall Through */
>  	case 27: 
>  		/* Data memory protection ID trap */
> +		if (code == 27 && !user_mode(regs) &&
> +			fixup_exception(regs))
> +                   return;

I think you should add a self-explaining printk(KERN_CRIT,..) here, so
that we can track when this bug appeared in userspace.
Something like:
printk("strange data protection ID trap happened to <procname> PID: xxx.
(this is a bug in the kernel)\n");
(you probably find a better wording)

Having a correctly-coded userspace process which suddenly just return
failures in syscalls is not good and would make people wonder and
unnecessarily try to debug their (correct) userspace apps...

Helge
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
	compiling ruby1.9
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On Fri, Dec 19, 2008 at 11:59:11PM +0100, Helge Deller wrote:
> Thanks for cleaning up my patch and splitting out the fixup_exception()
> code.
> Your patch is fine and I think you should apply it (with one minor
> addition - see below).
> The reason I think why you should apply it is, that we shouldn't let the
> kernel crash on (correct) userspace apps.
> Maybe adding a comment that this check in trap #27 should be removed
> when the bug is fixed would be good though.
> 

Hmm. You raise a good point that userspace is DTRT...
Can you test to see if this patch fixes things? My c3000 with an
unpatched kernel has suddenly decided it doesn't want to crash 
anymore...

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 4c771cd..73058e8 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -745,6 +745,19 @@ void handle_interruption(int code, struct pt_regs *regs)
 		/* Fall Through */
 	case 27: 
 		/* Data memory protection ID trap */
+#define HANDLE_KERNEL_PROTECTION_TRAPS
+#ifdef HANDLE_KERNEL_PROTECTION_TRAPS
+		/* XXX very very evil */
+		if (code == 27 && !user_mode(regs)) {
+			/* bang the spaceid back into sr3 */
+			regs->sr[3] = (unsigned long)current->mm.context;
+			/* TODO? reprogram %cr8? load_context will get it. */
+			/* TODO? thread_struct.faulted count to catch
+			 *  taking the same fault on the same insn again?
+			 */
+			return;
+		}
+#endif /*HANDLE_KERNEL_PROTECTION_TRAPS*/
 		die_if_kernel("Protection id trap", regs, code);
 		si.si_code = SEGV_MAPERR;
 		si.si_signo = SIGSEGV;
--
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: HPMC bus timeout on C3600
Date: Sat, 20 Dec 2008 13:39:15 +0100
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Hi team,


I'm recently running into HPMC bus timeout problem. While this never
caused any problem before, I've noticed a few strange things. I've
attached the output I get from "pim hpmc" in the PDC.

This BUS timeout occurs after one or two days of idling when I plug a
specific card reader in the USB PCI card I plugged in. I think this
card reader causes problems because it's being polled every 2-3 seconds.

Nevertheless, looking at the pdc output, it seems that the OS HPMC
handler is not kicking off according to the chassis code CBF2 and CBFC.
CBF2 : bas OS HPMC len
CBFC : OS HPMC br err

I've check GR02 and it points to inw() which makes sens. Nothing
interesting there.

The failing device appears to be the built-in NIC according the path
provided in the output (10/0/12/0) and the C3600 service manual (figure
5-2).

Even if this look HW pb, I've had a few reports recently about HPMC PCI
timeout issues and I have a few doubts.

Now my questions are :
 - does this look like an HW or SW problems ?
 - why isn't the HPMC handler kicked off ?
 - could the HPMC handler recover this ?
 - what debug can I enable to get more info about this if applicable ?



Cheers,
  Guy


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>  	case 27: 
>  		/* Data memory protection ID trap */
> +#define HANDLE_KERNEL_PROTECTION_TRAPS
> +#ifdef HANDLE_KERNEL_PROTECTION_TRAPS
> +		/* XXX very very evil */
> +		if (code == 27 && !user_mode(regs)) {

Should a check be added for regs->sr[3] != (unsigned long)current->mm.context?

> +			/* bang the spaceid back into sr3 */
> +			regs->sr[3] = (unsigned long)current->mm.context;

I seem to recall that James thought there was a problem with sr3 handling
a year or two ago.

> +			/* TODO? reprogram %cr8? load_context will get it. */
> +			/* TODO? thread_struct.faulted count to catch
> +			 *  taking the same fault on the same insn again?

Is this a general problem with parisc exception support?  The reason
I ask is it seems possible for an infinite loop to occur when an application
catches exceptions like bash.  It catches terminating signals so that it
can write the history file.  When terminate_immediately is zero, the
signal handler (termsig_sighandler) just records the terminating signal
and returns.  It doesn't reset the default handler for the signal or
specify SA_RESETHAND as far as I can tell.

It then appears the kernel restarts the application at the point of the
exception generating another exception.  This causes the kernel log files
to fill in short order.

I would say bash's behavior in trying to continue after a SEGV is questionable
but I also think the kernel shouldn't retry a faulting instruction unless
there's a chance the fault has been fixed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Dec 20, 2008 at 01:39:15PM +0100, Guy Martin wrote:
> I'm recently running into HPMC bus timeout problem. While this never
> caused any problem before, I've noticed a few strange things. I've
> attached the output I get from "pim hpmc" in the PDC.
> 
> This BUS timeout occurs after one or two days of idling when I plug a
> specific card reader in the USB PCI card I plugged in. I think this
> card reader causes problems because it's being polled every 2-3 seconds.
> 
> Nevertheless, looking at the pdc output, it seems that the OS HPMC
> handler is not kicking off according to the chassis code CBF2 and CBFC.
> CBF2 : bas OS HPMC len
> CBFC : OS HPMC br err
> 
> I've check GR02 and it points to inw() which makes sens. Nothing
> interesting there.
> 
> The failing device appears to be the built-in NIC according the path
> provided in the output (10/0/12/0) and the C3600 service manual (figure
> 5-2).
> 
> Even if this look HW pb, I've had a few reports recently about HPMC PCI
> timeout issues and I have a few doubts.
> 
> Now my questions are :
>  - does this look like an HW or SW problems ?
>  - why isn't the HPMC handler kicked off ?
>  - could the HPMC handler recover this ?
>  - what debug can I enable to get more info about this if applicable ?
> 

"bus timeout" usually means we tried to read an address that doesn't
respond. that is, nothing on the bus accepted the transaction for it,
so it timed out and HPMC'd the box.

what you really need is the IIR, and the address it tried to access
(both the kernel vaddr which will be in the register, and the "system
requester address" from the hpmc dump which will be the physical address
mapped.

not sure why the hpmc handler is getting skipped, that's a little weird.

you can try hacking elroy to set softfail mode on that bus, which will
result in a timeout on the pci bus to return -1 (like what x86 and most
other architectures do) rather than hang the box, but it really likely
means a driver bug.
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On Sat, Dec 20, 2008 at 05:16:53PM -0500, Kyle McMartin wrote:
> you can try hacking elroy to set softfail mode on that bus, which will
> result in a timeout on the pci bus to return -1 (like what x86 and most
> other architectures do) rather than hang the box, but it really likely
> means a driver bug.

untested and all that jazz.

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index a28c894..a34f759 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1341,7 +1341,7 @@ lba_hw_init(struct lba_device *d)
 
 	/* Set HF mode as the default (vs. -1 mode). */
         stat = READ_REG32(d->hba.base_addr + LBA_STAT_CTL);
-	WRITE_REG32(stat | HF_ENABLE, d->hba.base_addr + LBA_STAT_CTL);
+	WRITE_REG32(stat & ~HF_ENABLE, d->hba.base_addr + LBA_STAT_CTL);
 
 	/*
 	** Writing a zero to STAT_CTL.rf (bit 0) will clear reset signal
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New commits:
commit be2d147d9a28c5fafb6c940ffee9aad1e97d8ed1
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Sun Dec 21 00:39:04 2008 +0000

    parisc: use leX_to_cpu in place of __fswabX
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:03:13 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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On Sat, Dec 20, 2008 at 01:39:15PM +0100, Guy Martin wrote:
> I'm recently running into HPMC bus timeout problem. While this never
> caused any problem before, I've noticed a few strange things. I've
> attached the output I get from "pim hpmc" in the PDC.
> 
> This BUS timeout occurs after one or two days of idling when I plug a
> specific card reader in the USB PCI card I plugged in. I think this
> card reader causes problems because it's being polled every 2-3 seconds.
> 
> Nevertheless, looking at the pdc output, it seems that the OS HPMC
> handler is not kicking off according to the chassis code CBF2 and CBFC.
> CBF2 : bas OS HPMC len
> CBFC : OS HPMC br err
> 
> I've check GR02 and it points to inw() which makes sens. Nothing
> interesting there.
> 
> The failing device appears to be the built-in NIC according the path
> provided in the output (10/0/12/0) and the C3600 service manual (figure
> 5-2).

It's likely the NIC (tulip driver) is just more active than the other
USB controller and thus becomes the "victim" of the USB misbehavior.
This is very common for DMA programming bugs.

"word2" from this bit of the HPMC  needs to be decoded:

I/O Module Error Log Information:

Timestamp =
  Tue Dec  16 21:23:47 GMT 2008    (20:08:12:16:21:23:47)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc2a9   0x00000000fed30048
...

Both the USB controller and NIC are on Rope 0. If the USB controller
falls over, it will take all devices on that bus with it.

We've seen "0x0e0cc2a9" before but it wasn't decoded then either.


> Even if this look HW pb, I've had a few reports recently about HPMC PCI
> timeout issues and I have a few doubts.
> 
> Now my questions are :
>  - does this look like an HW or SW problems ?

More likely SW.

>  - why isn't the HPMC handler kicked off ?

No Idea. Probably not hooked in correctly.
But this might also explain why you haven't seen many HPMC bug reports.

>  - could the HPMC handler recover this ?

No.

>  - what debug can I enable to get more info about this if applicable ?

I'd look carefully at USB DMA streams. This will likely require
adding debug code to USB drivers. Mostly to dump when a USB buffer is
mapped and when it's unmap.

hth,
grant
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On Sat, Dec 20, 2008 at 05:21:00PM -0500, Kyle McMartin wrote:
> On Sat, Dec 20, 2008 at 05:16:53PM -0500, Kyle McMartin wrote:
> > you can try hacking elroy to set softfail mode on that bus, which will
> > result in a timeout on the pci bus to return -1 (like what x86 and most
> > other architectures do) rather than hang the box, but it really likely
> > means a driver bug.
> 
> untested and all that jazz.
> 
> diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
> index a28c894..a34f759 100644
> --- a/drivers/parisc/lba_pci.c
> +++ b/drivers/parisc/lba_pci.c
> @@ -1341,7 +1341,7 @@ lba_hw_init(struct lba_device *d)
>  
>  	/* Set HF mode as the default (vs. -1 mode). */
>          stat = READ_REG32(d->hba.base_addr + LBA_STAT_CTL);
> -	WRITE_REG32(stat | HF_ENABLE, d->hba.base_addr + LBA_STAT_CTL);
> +	WRITE_REG32(stat & ~HF_ENABLE, d->hba.base_addr + LBA_STAT_CTL);

I'm not sure how helpful this will be. It will be unpredictable how
the tulip driver will handle getting -1's back from inw().

thanks,
grant

>  
>  	/*
>  	** Writing a zero to STAT_CTL.rf (bit 0) will clear reset signal
> --
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
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> Honestly, I can't decide whether to apply this. It really should never
> happen in the kernel, since the kernel can guarantee it won't get the
> access rights failure (highest privilege level, and can set %sr and
> %protid to whatever it wants.)

I believe this change should be applied because we enable P and the
hardware can generate the exception.  Yes, it should never happen, but
the coding to prevent this occurring is very subtle.

> It really genuinely is a bug that probably should panic the kernel. The
> only precedent I can easily see is x86 fixing up a bad iret with a
> general protection fault, which is more or less analogous to code 27
> here.

I don't think we have enough information here.  A panic doesn't tell
us what we need to know...

> On the other hand, taking the exception on a userspace access really
> isn't all that critical, and there's fundamentally little reason for the
> kernel not to SIGSEGV the process, and continue...

Agreed, especially in a __put_user operation.

> (btw, I've instrumented my do_sys_poll with a pile of assertions that
>  %cr8 << 1 == %sr3 == current->mm.context... let's see if where we're
>  getting corrupted is deterministic, though, I would guess that it won't
>  be.)

Having looked at the code a bit, I have come to the conclusion that the
problem is not with the sr3 value.  We have a one-to-one mapping between
space register values and protection IDs.  TLB entries get inserted using
the space register value for the protection ID (see entry.S).  So, I think
we have to have inconsistent values in cr8 and sr3.

I think the bug may be in flush_user_cache_page_non_current.  It hijacks
sr3 temporarily and I don't think cr8 is updated when this is done.  The
switch may need to be atomic.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> I think the bug may be in flush_user_cache_page_non_current.  It hijacks
> sr3 temporarily and I don't think cr8 is updated when this is done.  The
> switch may need to be atomic.

The following might fix the protection ID bug.

--- cache.c.orig	2008-07-17 21:24:46.000000000 -0400
+++ cache.c	2008-12-21 11:53:54.000000000 -0500
@@ -312,14 +312,14 @@
 
 	/* make us current */
 	mtctl(__pa(vma->vm_mm->pgd), 25);
-	mtsp(vma->vm_mm->context, 3);
+	load_context(vma->vm_mm->context);
 
 	flush_user_dcache_page(vmaddr);
 	if(vma->vm_flags & VM_EXEC)
 		flush_user_icache_page(vmaddr);
 
 	/* put the old current process back */
-	mtsp(space, 3);
+	load_context(space);
 	mtctl(pgd, 25);
 	preempt_enable();
 }

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Dec 21, 2008 at 12:27:42PM -0500, John David Anglin wrote:
> > I think the bug may be in flush_user_cache_page_non_current.  It hijacks
> > sr3 temporarily and I don't think cr8 is updated when this is done.  The
> > switch may need to be atomic.
> 
> The following might fix the protection ID bug.
> 

I'm not convinced... this doesn't explain why we don't see this on
64-bit...
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On Sun, Dec 21, 2008 at 04:33:03PM -0500, Kyle McMartin wrote:
> On Sun, Dec 21, 2008 at 12:27:42PM -0500, John David Anglin wrote:
> > > I think the bug may be in flush_user_cache_page_non_current.  It hijacks
> > > sr3 temporarily and I don't think cr8 is updated when this is done.  The
> > > switch may need to be atomic.
> > 
> > The following might fix the protection ID bug.
> > 
> 
> I'm not convinced... this doesn't explain why we don't see this on
> 64-bit...
> 

Nope, no love... :\
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> On Sun, Dec 21, 2008 at 12:27:42PM -0500, John David Anglin wrote:
> > > I think the bug may be in flush_user_cache_page_non_current.  It hijacks
> > > sr3 temporarily and I don't think cr8 is updated when this is done.  The
> > > switch may need to be atomic.
> > 
> > The following might fix the protection ID bug.
> > 
> 
> I'm not convinced... this doesn't explain why we don't see this on
> 64-bit...

Agreed.  However, we do have tlb issues on 64-bit and this is just about
the only place where sr3 is messed with and cr8 isn't correctly set.
I'm sure the bug is somewhat timing dependent.

There has to be something else that causes a userspace access
with inconsistent space and protection IDs.  The cache flush can cause
non access tlb misses, and there is some difference in tlb hardware,
but cr8 isn't involved in the tlb miss handling as far as I can see.

I'm running with the patch on 2.6.28-rc8 (SMP) and 2.6.22.19 (UP).

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Dec 21, 2008 at 10:20:16AM -0500, John David Anglin wrote:
> > Honestly, I can't decide whether to apply this. It really should never
> > happen in the kernel, since the kernel can guarantee it won't get the
> > access rights failure (highest privilege level, and can set %sr and
> > %protid to whatever it wants.)
> 
> I believe this change should be applied because we enable P and the
> hardware can generate the exception.  Yes, it should never happen, but
> the coding to prevent this occurring is very subtle.
> 

If we're going to paper over a bug like this, we might as well just turn
the P-bit off...
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> 
> On Sun, Dec 21, 2008 at 10:20:16AM -0500, John David Anglin wrote:
> > > Honestly, I can't decide whether to apply this. It really should never
> > > happen in the kernel, since the kernel can guarantee it won't get the
> > > access rights failure (highest privilege level, and can set %sr and
> > > %protid to whatever it wants.)
> > 
> > I believe this change should be applied because we enable P and the
> > hardware can generate the exception.  Yes, it should never happen, but
> > the coding to prevent this occurring is very subtle.
> > 
> 
> If we're going to paper over a bug like this, we might as well just turn
> the P-bit off...

I just want a segv instead of a panic as I don't think we know whether
the kernel is bad or not.

This bug has been around for for some time.  I believe that it was reported
in 2004, or earlier.

Even HP has problems.  Saw this today:

Release Date: Nov 19 2008
Description :   PHKL_39110: ( QX:QXCR1000827621 ) The system can panic with
 the following panic string and stack trace. Panic string : Data memory
 protection/access rights/alignment fault FUNC panic+0x6c
 report_trap_or_int_and_panic+0x94 interrupt+0x4e4 ihandler+0x940
+-------------  TRAP  ----------------------------
|  Trap type 18 in KERNEL mode at 0x38f50 (lbcopy+0x1f0)
|  p struct save_state 0.0x189cc60
+-------------  TRAP  ----------------

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:13 2018
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John David Anglin wrote:
>> I think the bug may be in flush_user_cache_page_non_current.  It hijacks
>> sr3 temporarily and I don't think cr8 is updated when this is done.  The
>> switch may need to be atomic.
> 
> The following might fix the protection ID bug.
> 
> --- cache.c.orig	2008-07-17 21:24:46.000000000 -0400
> +++ cache.c	2008-12-21 11:53:54.000000000 -0500
> @@ -312,14 +312,14 @@
>  
>  	/* make us current */
>  	mtctl(__pa(vma->vm_mm->pgd), 25);
> -	mtsp(vma->vm_mm->context, 3);
> +	load_context(vma->vm_mm->context);
>  
>  	flush_user_dcache_page(vmaddr);
>  	if(vma->vm_flags & VM_EXEC)
>  		flush_user_icache_page(vmaddr);
>  
>  	/* put the old current process back */
> -	mtsp(space, 3);
> +	load_context(space);

I came to the similar conclusion and tried exactly this patch earlier
today. It didn't fixed the problem (although I had the feeling that the
bug didn't appeared as often then).

Helge

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> Nope, no love... :\

Sigh, I knew it.

Did any of your instrumentation trigger?

Dave
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> > -	mtsp(space, 3);
> > +	load_context(space);
> 
> I came to the similar conclusion and tried exactly this patch earlier
> today. It didn't fixed the problem (although I had the feeling that the
> bug didn't appeared as often then).

Ok, then maybe load_context needs to be atomic.  This is a bit tricky
because we may have to ensure that no tlb misses are triggered (relied
upon translation) during the update.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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Cc: Kyle McMartin <kyle@infradead.org>, linux-parisc@vger.kernel.org
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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John David Anglin wrote:
> Having looked at the code a bit, I have come to the conclusion that the
> problem is not with the sr3 value.  

In all debugging I added I could _always_ see that sr3 had the wrong
values. cr8 and mm->context were always correct.
Interestingly it was often just a few numbers off in the lower 4 bits,
e.g. sr3 should have been 0x1a8 but was 0x1a2 (just an example).

> We have a one-to-one mapping between
> space register values and protection IDs.  TLB entries get inserted using
> the space register value for the protection ID (see entry.S).  So, I think
> we have to have inconsistent values in cr8 and sr3.

Again, only sr3 is wrong. cr8 is correct.

> I think the bug may be in flush_user_cache_page_non_current.  It hijacks
> sr3 temporarily and I don't think cr8 is updated when this is done.  The
> switch may need to be atomic.

I tried that as well, e.g. adding local_irq_[en|dis]able didn't worked
(it crashed IIRC).

Helge
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John David Anglin wrote:
>>> -	mtsp(space, 3);
>>> +	load_context(space);
>> I came to the similar conclusion and tried exactly this patch earlier
>> today. It didn't fixed the problem (although I had the feeling that the
>> bug didn't appeared as often then).
> 
> Ok, then maybe load_context needs to be atomic.  This is a bit tricky
> because we may have to ensure that no tlb misses are triggered (relied
> upon translation) during the update.

I'll try tomorrow.

What makes me wondering:

a) the bug always triggers AFAICS with applications which uses threads
(for the ruby1.9 problem it's always the miniruby process). Maybe the
problem happens to something being wrong in the signal handler with
threadened applications, e.g. arch/parisc/kernel/signal.c:648 ?

b) maybe stupid question: In the case it's a generic processor problem,
would e.g. changing the kernel to use sr4 instead of sr3 for
userspace-accesses change something? What does HPUX uses? At least one
could try...?


Helge
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From - Thu Nov 08 21:03:14 2018
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> John David Anglin wrote:
> >>> -	mtsp(space, 3);
> >>> +	load_context(space);
> >> I came to the similar conclusion and tried exactly this patch earlier
> >> today. It didn't fixed the problem (although I had the feeling that the
> >> bug didn't appeared as often then).
> > 
> > Ok, then maybe load_context needs to be atomic.  This is a bit tricky
> > because we may have to ensure that no tlb misses are triggered (relied
> > upon translation) during the update.
> 
> I'll try tomorrow.

Another thing that I'm wondering about is the following.  The tlb miss
handlers assume the following:

	* cr24 contains a pointer to the kernel address space
	* page directory.
	*
	* cr25 contains a pointer to the current user address
	* space page directory.
	*
	* sr3 will contain the space id of the user address space
	* of the current running thread while that thread is
	* running in the kernel.

Possibly, load_context needs to update cr25 as well.  Assume cr24
never changes.

> What makes me wondering:
> 
> a) the bug always triggers AFAICS with applications which uses threads
> (for the ruby1.9 problem it's always the miniruby process). Maybe the
> problem happens to something being wrong in the signal handler with
> threadened applications, e.g. arch/parisc/kernel/signal.c:648 ?

In my gcc builds, it's bash and make that experience the majority of
unexplained segvs.  There is an issue with the signal handler and bash
that causes a loop, however I think the initial fault was caused by a
tlb issue.

> b) maybe stupid question: In the case it's a generic processor problem,
> would e.g. changing the kernel to use sr4 instead of sr3 for
> userspace-accesses change something? What does HPUX uses? At least one
> could try...?

Personally, it's not clear to me that this is just a problem with kernel
userspace accesses.  If sr3 is corrupt in the kernel, sr7 will be corrupt
in userspace.  Think the only thing special about sr3 is that the kernel
changes it for cache flushes, forks, etc.

Your comment that it's sr3 that's wrong suggests a problem with context
switches, particularly since the corrupt value is close to the correct
value.  If sr3 and cr8 are still inconsistent after the patch to
flush_user_cache_page_non_current, we must be missing a mechanism that
updates sr3.  One thought is to load cr8 before sr3 in load_context and
see what happens.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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New commits:
commit 5939320fddfc4c6ada0550c4b20f6e81191c64b9
Author: Kyle McMartin <kyle@treachery.i.cabal.ca>
Date:   Mon Dec 22 12:29:02 2008 -0500

    parisc: factor out sid to protid conversion
    
    Create a new __space_to_prot inline to convert the space id (mmu context)
    to a protection id. Sadly it doesn't look like the #ifdef can be eliminated
    since relying on the compiler to not truncate a bit on
    	return (ctx >> SPACEID_SHIFT) << 1;
    seems a little dodgy.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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Kyle, Grant,

Thanks for your help but being unable to reproduce the issue at will
makes it very difficult to make any progress. The fault didn't occurred
those past two days.

So I decided to go another way. I've plugged in one of my well working
sata card and did a lot of IO using "dd if=/dev/zero of=/dev/sdc".

I'm not sure if this would trigger the same problem but it does trigger
an HPMC Bus timeout too after a few hundreds megs. This time, the PCI
slot pointed by the output is the sata card itself in slot 4.
Regarding GR02, it seems to point somewhere in user space.

Regarding Kyle's patch, it didn't changed anything but since the fault
isn't at inw(), I'm not sure it still even makes sens to apply it.


I tried to find out why the HPMC os handler wasn't triggered.
As documented in pdc20-v1.1-Ch3-pdce.pdf, the interruption vector table
is setup correctly. By this I mean that CR 14 points correctly to the
beginning of the fault_vector_20 (physical addr), the checksum is ok
and the length seems about right. I used a quickly coded module to
check all of this at run time.

The only thing that doesn't seem to be done is calling PDC_INSTR but I
still need to investigate that.
As far as I understand it's should provide instr to jump to the
os_hpmc handler. Those instr are already harcoded in the fault vector
so it's shouldn't be needed, unless calling PDC_INSTR actually does
tell the PDC that os_hpmc has been installed.


So again, I'm looking for help on going further with this issue.

Unfortunately, I don't have a lot of knowledge about PCI and the HP
side of the  elroy chip. I wanted to look at elroy's documentation but
it seems that a large part was stripped down.
Any pointer to usefull doc is more than welcome !

I've attached two HPMC dumps generated using the same command. Hopefull
they'll provide more details.
This is on an C3600 running latest parisc-2.6 git tree.


Regards,
  Guy






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From - Thu Nov 08 21:03:14 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: HPMC bus timeout on C3600
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Cc: Grant Grundler <grundler@parisc-linux.org>,
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To: Guy Martin <gmsoft@tuxicoman.be>
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On Mon, Dec 22, 2008 at 10:40:23PM +0100, Guy Martin wrote:
> 
> Kyle, Grant,
> 
> Thanks for your help but being unable to reproduce the issue at will
> makes it very difficult to make any progress. The fault didn't occurred
> those past two days.
> 
> So I decided to go another way. I've plugged in one of my well working
> sata card and did a lot of IO using "dd if=/dev/zero of=/dev/sdc".
> 
> I'm not sure if this would trigger the same problem but it does trigger
> an HPMC Bus timeout too after a few hundreds megs. This time, the PCI
> slot pointed by the output is the sata card itself in slot 4.
> Regarding GR02, it seems to point somewhere in user space.
> 
> Regarding Kyle's patch, it didn't changed anything but since the fault
> isn't at inw(), I'm not sure it still even makes sens to apply it.
> 

you won't know for sure, since readl/etc are inlines into the caller...
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From - Thu Nov 08 21:03:15 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>, kyle@infradead.org,
	linux-parisc@vger.kernel.org
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On Sun, 2008-12-21 at 23:52 +0100, Helge Deller wrote:
> John David Anglin wrote:
> >> I think the bug may be in flush_user_cache_page_non_current.  It hijacks
> >> sr3 temporarily and I don't think cr8 is updated when this is done.  The
> >> switch may need to be atomic.
> > 
> > The following might fix the protection ID bug.
> > 
> > --- cache.c.orig	2008-07-17 21:24:46.000000000 -0400
> > +++ cache.c	2008-12-21 11:53:54.000000000 -0500
> > @@ -312,14 +312,14 @@
> >  
> >  	/* make us current */
> >  	mtctl(__pa(vma->vm_mm->pgd), 25);
> > -	mtsp(vma->vm_mm->context, 3);
> > +	load_context(vma->vm_mm->context);
> >  
> >  	flush_user_dcache_page(vmaddr);
> >  	if(vma->vm_flags & VM_EXEC)
> >  		flush_user_icache_page(vmaddr);
> >  
> >  	/* put the old current process back */
> > -	mtsp(space, 3);
> > +	load_context(space);
> 
> I came to the similar conclusion and tried exactly this patch earlier
> today. It didn't fixed the problem (although I had the feeling that the
> bug didn't appeared as often then).

Actually, it should bug more often.  This function:
flush_user_cache_page_non_current() is very rarely called (which is
hopefully why you don't see an increase in bugs).  However, this is a
kernel function ... if you call load_context() here, you'll get the user
protection IDs in the register and it will immediately fault when it
returns to the kernel.  All it should be doing (which is what it
currently does) is to set up sr3 to allow the kernel to poke into a user
address space, which is the design of the function.

James


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From - Thu Nov 08 21:03:15 2018
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
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On Sun, 2008-12-21 at 17:20 -0500, Kyle McMartin wrote:
> On Sun, Dec 21, 2008 at 10:20:16AM -0500, John David Anglin wrote:
> > > Honestly, I can't decide whether to apply this. It really should never
> > > happen in the kernel, since the kernel can guarantee it won't get the
> > > access rights failure (highest privilege level, and can set %sr and
> > > %protid to whatever it wants.)
> > 
> > I believe this change should be applied because we enable P and the
> > hardware can generate the exception.  Yes, it should never happen, but
> > the coding to prevent this occurring is very subtle.
> > 
> 
> If we're going to paper over a bug like this, we might as well just turn
> the P-bit off...

I'm afraid you can't.  The invisibility of the kernel space from user
space relies on this, as does quite a lot of the page protections.

James


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From - Thu Nov 08 21:03:15 2018
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On Mon, Dec 22, 2008 at 04:43:36PM -0600, James Bottomley wrote:
> Actually, it should bug more often.  This function:
> flush_user_cache_page_non_current() is very rarely called (which is
> hopefully why you don't see an increase in bugs).  However, this is a
> kernel function ... if you call load_context() here, you'll get the user
> protection IDs in the register and it will immediately fault when it
> returns to the kernel.  All it should be doing (which is what it
> currently does) is to set up sr3 to allow the kernel to poke into a user
> address space, which is the design of the function.
> 

Well, it will work by accident, since the other 3 (or 7) prot id
registers will still be zeroed, since we only ever touch %cr8...
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From - Thu Nov 08 21:03:15 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
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On Mon, Dec 22, 2008 at 04:46:30PM -0600, James Bottomley wrote:
> On Sun, 2008-12-21 at 17:20 -0500, Kyle McMartin wrote:
> > On Sun, Dec 21, 2008 at 10:20:16AM -0500, John David Anglin wrote:
> > > > Honestly, I can't decide whether to apply this. It really should never
> > > > happen in the kernel, since the kernel can guarantee it won't get the
> > > > access rights failure (highest privilege level, and can set %sr and
> > > > %protid to whatever it wants.)
> > > 
> > > I believe this change should be applied because we enable P and the
> > > hardware can generate the exception.  Yes, it should never happen, but
> > > the coding to prevent this occurring is very subtle.
> > > 
> > 
> > If we're going to paper over a bug like this, we might as well just turn
> > the P-bit off...
> 
> I'm afraid you can't.  The invisibility of the kernel space from user
> space relies on this, as does quite a lot of the page protections.
> 

Access right bits are still enforced, just the access id checking is
disabled when the P-bit is off.
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From - Thu Nov 08 21:03:15 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPMC bus timeout on C3600
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On Mon, 22 Dec 2008 16:47:43 -0500
Kyle McMartin <kyle@infradead.org> wrote:

> > Regarding Kyle's patch, it didn't changed anything but since the
> > fault isn't at inw(), I'm not sure it still even makes sens to
> > apply it.
> > 
> 
> you won't know for sure, since readl/etc are inlines into the
> caller...

It seems that I forgot to include your patch when I switched to the
git tree. I've been doing tests again with your patch and things are
different :

The command "dd if=/dev/zero of=/dev/sdc bs=1M" didn't trigger HPMC
anymore after a reasonable amount of time.

I then tried a NFS copy from a NFS share to the disk. The kernel did
panic with the attached output.

Hopefully this will be more useful.

  Guy


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New commits:
commit 6c4dfa8f8bcf032137aacb3640d7dd9d75b2b607
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Mon Dec 22 23:58:31 2008 +0000

    parisc: fix braino in commit adding __space_to_prot
    
    Shouldn't commit without building before morning coffee...
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:03:15 2018
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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
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> Actually, it should bug more often.  This function:
> flush_user_cache_page_non_current() is very rarely called (which is
> hopefully why you don't see an increase in bugs).  However, this is a
> kernel function ... if you call load_context() here, you'll get the user
> protection IDs in the register and it will immediately fault when it
> returns to the kernel.  All it should be doing (which is what it
> currently does) is to set up sr3 to allow the kernel to poke into a user
> address space, which is the design of the function.

As things stand, the call is fully inlined.  Nothing can be poked into
the user address space without the protection ID register being correctly
set.  The cache flushes can trigger a non-access tlb miss fault.  At
the moment, I can't see how this function could cause a protection ID fault.
However, it still seems good practice to set cr8 consistently when the
user context is changed.

The kernel uses space register values of zero, so it shouldn't fault
because of the change to sr3 and cr8 for non current.  The values are
restored before flush_user_cache_page_non_current() exits.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:15 2018
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On Mon, Dec 22, 2008 at 09:31:10PM -0500, John David Anglin wrote:
> > Actually, it should bug more often.  This function:
> > flush_user_cache_page_non_current() is very rarely called (which is
> > hopefully why you don't see an increase in bugs).  However, this is a
> > kernel function ... if you call load_context() here, you'll get the user
> > protection IDs in the register and it will immediately fault when it
> > returns to the kernel.  All it should be doing (which is what it
> > currently does) is to set up sr3 to allow the kernel to poke into a user
> > address space, which is the design of the function.
> 
> As things stand, the call is fully inlined.  Nothing can be poked into
> the user address space without the protection ID register being correctly
> set.  The cache flushes can trigger a non-access tlb miss fault.  At
> the moment, I can't see how this function could cause a protection ID fault.
> However, it still seems good practice to set cr8 consistently when the
> user context is changed.
> 
> The kernel uses space register values of zero, so it shouldn't fault
> because of the change to sr3 and cr8 for non current.  The values are
> restored before flush_user_cache_page_non_current() exits.
> 

just fyi, jejb sleuthed out that it was flush_tlb_mm's non-SMP path
(which "flushes" the tlb by allocating a new spaceid) that was causing
the problem, and helge verified that it fixes the bug.

i'm confirming now with a make && make clean loop building ruby, if it
survives the night, i'll commit the patch tomorrow and push it to stable
until we have a clean(er) fix.

diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index b72ec66..1f6fd4f 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -44,9 +44,12 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
 {
 	BUG_ON(mm == &init_mm); /* Should never happen */
 
-#ifdef CONFIG_SMP
+#if 1 || defined(CONFIG_SMP)
 	flush_tlb_all();
 #else
+	/* FIXME: currently broken, causing space id and protection ids
+	 *  to go out of sync, resulting in faults on userspace accesses.
+	 */
 	if (mm) {
 		if (mm->context != 0)
 			free_sid(mm->context);
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From - Thu Nov 08 21:03:16 2018
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> just fyi, jejb sleuthed out that it was flush_tlb_mm's non-SMP path
> (which "flushes" the tlb by allocating a new spaceid) that was causing
> the problem, and helge verified that it fixes the bug.

That's great news!  I'd noticed this code tonight and wondered why it
wasn't loading cr25.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:16 2018
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New commits:
commit 378fe7c4cc619b561409206605c723c05358edac
Author: Kyle McMartin <kyle@treachery.i.cabal.ca>
Date:   Mon Dec 22 21:59:01 2008 -0500

    parisc: disable UP-optimized flush_tlb_mm
    
    flush_tlb_mm's "optimized" uniprocessor case of allocating a new
    context for userspace is exposing a race where we can suddely return
    to a syscall with the protection id and space id out of sync, trapping
    on the next userspace access.
    
    Debugged-by: James Bottomley <James.Bottomley@HansenPartnership.com>
    Tested-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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Subject: Re: [PATCH] [RFC] fix kernel crash (protection id trap) when
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> just fyi, jejb sleuthed out that it was flush_tlb_mm's non-SMP path
> (which "flushes" the tlb by allocating a new spaceid) that was causing
> the problem, and helge verified that it fixes the bug.

It seems this code can be called from drivers.  Maybe the context
update needs to be surrounded by task_lock(current)...task_unlock(current).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:16 2018
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Subject: [PATCH] parisc: disable UP-optimized flush_tlb_mm
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flush_tlb_mm's "optimized" uniprocessor case of allocating a new
context for userspace is exposing a race where we can suddely return
to a syscall with the protection id and space id out of sync, trapping
on the next userspace access.

Debugged-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
---
Linus, Greg, please apply to stable and HEAD, this is a fairly
important fix for parisc.

Thanks,
	Kyle

 arch/parisc/include/asm/tlbflush.h |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index b72ec66..1f6fd4f 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -44,9 +44,12 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
 {
 	BUG_ON(mm == &init_mm); /* Should never happen */
 
-#ifdef CONFIG_SMP
+#if 1 || defined(CONFIG_SMP)
 	flush_tlb_all();
 #else
+	/* FIXME: currently broken, causing space id and protection ids
+	 *  to go out of sync, resulting in faults on userspace accesses.
+	 */
 	if (mm) {
 		if (mm->context != 0)
 			free_sid(mm->context);
-- 
1.6.0.4

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From - Thu Nov 08 21:03:16 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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To: Guy Martin <gmsoft@tuxicoman.be>
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On Mon, Dec 22, 2008 at 11:49:48PM +0100, Guy Martin wrote:
> The command "dd if=/dev/zero of=/dev/sdc bs=1M" didn't trigger HPMC
> anymore after a reasonable amount of time.
> 
> I then tried a NFS copy from a NFS share to the disk. The kernel did
> panic with the attached output.

[ 1589.466507] Badness at fs/buffer.c:1186

Technically, this isn't a panic. This is a "WARN_ON".
I didn't see any panic's after that either.

The file system warning us that the sata disk it was
talking failed an IO. 

However, this is likely to be some other issue with the SATA controller.
Can you post more details about the config?
o "lspci -v"
o hdparm -i /dev/sd<X>

I don't expect I'll know what's wrong, but just want to document the bug.

thanks,
grant


> Hopefully this will be more useful.
> 
>   Guy
> 


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From: Julia Lawall <julia@diku.dk>

SPIN_LOCK_UNLOCKED is deprecated.  The following makes the change suggested
in Documentation/spinlocks.txt

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
declarer name DEFINE_SPINLOCK;
identifier xxx_lock;
@@

- spinlock_t xxx_lock = SPIN_LOCK_UNLOCKED;
+ DEFINE_SPINLOCK(xxx_lock);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
diff -u -p a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -52,7 +52,7 @@
 #include <linux/tty.h>
 #include <asm/pdc.h>		/* for iodc_call() proto and friends */
 
-static spinlock_t pdc_console_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(pdc_console_lock);
 
 static void pdc_console_write(struct console *co, const char *s, unsigned count)
 {
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From - Thu Nov 08 21:03:16 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPMC bus timeout on C3600
Date: Thu, 25 Dec 2008 16:57:50 +0100
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Cc: Kyle McMartin <kyle@infradead.org>, linux-parisc@vger.kernel.org
To: Grant Grundler <grundler@parisc-linux.org>
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On Thu, 25 Dec 2008 01:06:06 -0700
Grant Grundler <grundler@parisc-linux.org> wrote:

> [ 1589.466507] Badness at fs/buffer.c:1186
> 
> Technically, this isn't a panic. This is a "WARN_ON".
> I didn't see any panic's after that either.

Yes sorry. The system is still usable after the WARN_ON occurs. So no
panic.

Because of this, wouldn't it be a good idea to commit Kyle's patch ?
To me it seems better to have a running system with failure messages
being log rather than an ugly and barely understandable HPMC.

> The file system warning us that the sata disk it was
> talking failed an IO. 
> 
> However, this is likely to be some other issue with the SATA
> controller. Can you post more details about the config?
> o "lspci -v"
> o hdparm -i /dev/sd<X>

Here it is :

01:04.0 Mass storage controller: Silicon Image, Inc. SiI 3112 [SATALink/SATARaid] Serial ATA Controller (rev 02)
        Subsystem: Silicon Image, Inc. SiI 3112 SATALink Controller
        Flags: bus master, 66MHz, medium devsel, latency 240, IRQ 21
        I/O ports at 12400 [size=8]
        I/O ports at 12300 [size=4]
        I/O ports at 12200 [size=8]
        I/O ports at 12100 [size=4]
        I/O ports at 12000 [size=16]
        Memory at fb807000 (32-bit, non-prefetchable) [size=512]
        Expansion ROM at fb880000 [disabled] [size=512K]
        Capabilities: [60] Power Management version 2
        Kernel modules: sata_sil

 
/dev/sdc:

 Model=WDC WD5000AAKS-00TMA0                   , FwRev=12.01C01, SerialNo=     WD-WMAPW1390228
 Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
 BuffType=unknown, BuffSize=16384kB, MaxMultSect=16, MultSect=?0?
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=976773168
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio3 pio4 
 DMA modes:  mdma0 mdma1 mdma2 
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6 
 AdvancedPM=no WriteCache=disabled
 Drive conforms to: Unspecified:  ATA/ATAPI-1,2,3,4,5,6,7
 * signifies the current active mode


I'd like to add that I've been using the exact same card and hard drive on one of my x86 box for month without any issue.

Also I've reproduce the problem again and this time I've had this message right before the "end_request" line :
[  163.039983] timer_interrupt(CPU 0): delayed! cycles EB5EE1E6 rem 36AE6  next/now 706F7328/5BCE550E

Anything else I can do/provide to troubleshoot this ?


Cheers,
  Guy

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From - Thu Nov 08 21:03:16 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPMC bus timeout on C3600
Date: Thu, 25 Dec 2008 14:36:25 -0700
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Cc: Grant Grundler <grundler@parisc-linux.org>,
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To: Guy Martin <gmsoft@tuxicoman.be>
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On Thu, Dec 25, 2008 at 04:57:50PM +0100, Guy Martin wrote:
> On Thu, 25 Dec 2008 01:06:06 -0700
> Grant Grundler <grundler@parisc-linux.org> wrote:
> 
> > [ 1589.466507] Badness at fs/buffer.c:1186
> > 
> > Technically, this isn't a panic. This is a "WARN_ON".
> > I didn't see any panic's after that either.
> 
> Yes sorry. The system is still usable after the WARN_ON occurs. So no
> panic.
> 
> Because of this, wouldn't it be a good idea to commit Kyle's patch ?

I don't think kyle intended to commit that patch. He just wanted to
collect more info.

HPMC is 99% (for parisc-linux at least) of the time a driver bug.
So having the system crash on IO errors (including DMA map/unmap bugs)
is good for getting bugs reported and the state of the IOMMU and PCI
Host controller to debug the problem.

On the other hand, users often don't care about those details even if they
see (like you did) the device isn't working right. They can more easily
track down which device/drivers are having problems and remove them from
the config.

> To me it seems better to have a running system with failure messages
> being log rather than an ugly and barely understandable HPMC.

While I agree with your characterization of HPMCs, I don't want to trade
HPMC dumps for kernel logs.  HPMC provides info we can't otherwise get.

HPMCs might be more useful if the symbol name of every kernel address
in the dump were printed.  Given the System.map, it should be
possible to do something like:
    hpmc_symbols System.map < HPMC_dump.txt > HPMC_symbols.txt

The program "a.c" already exists to do a symbol lookup given an kernel
address and System.map file:
    http://cvs.parisc-linux.org/build-tools/

> > The file system warning us that the sata disk it was
> > talking failed an IO. 
> > 
> > However, this is likely to be some other issue with the SATA
> > controller. Can you post more details about the config?
> > o "lspci -v"
> > o hdparm -i /dev/sd<X>
> 
> Here it is :
> 
> 01:04.0 Mass storage controller: Silicon Image, Inc. SiI 3112 [SATALink/SATARaid] Serial ATA Controller (rev 02)

Ok...so this is the sata_sil driver.

>         Subsystem: Silicon Image, Inc. SiI 3112 SATALink Controller
>         Flags: bus master, 66MHz, medium devsel, latency 240, IRQ 21
>         I/O ports at 12400 [size=8]
>         I/O ports at 12300 [size=4]
>         I/O ports at 12200 [size=8]
>         I/O ports at 12100 [size=4]
>         I/O ports at 12000 [size=16]
>         Memory at fb807000 (32-bit, non-prefetchable) [size=512]
>         Expansion ROM at fb880000 [disabled] [size=512K]
>         Capabilities: [60] Power Management version 2
>         Kernel modules: sata_sil
> 
>  
> /dev/sdc:
> 
>  Model=WDC WD5000AAKS-00TMA0                   , FwRev=12.01C01, SerialNo=     WD-WMAPW1390228
>  Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
>  RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
>  BuffType=unknown, BuffSize=16384kB, MaxMultSect=16, MultSect=?0?
>  CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=976773168
>  IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
>  PIO modes:  pio0 pio3 pio4 
>  DMA modes:  mdma0 mdma1 mdma2 
>  UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6 
>  AdvancedPM=no WriteCache=disabled
>  Drive conforms to: Unspecified:  ATA/ATAPI-1,2,3,4,5,6,7
>  * signifies the current active mode

Ok - looks normal.

> I'd like to add that I've been using the exact same card and hard drive
> on one of my x86 box for month without any issue.

That doesn't mean the driver and chip operate 100% correctly.
Has anyone run exhaustive tests to detect data corruption with this card?

Looking at the sil_interrupt() code, it seems a PCI Master abort was
sometimes expected when reading the bmdma2 register:
	u32 bmdma2 = readl(mmio_base + sil_port[ap->port_no].bmdma2);
	...
	if (bmdma2 == 0xffffffff ||
	    !(bmdma2 & (SIL_DMA_COMPLETE | SIL_DMA_SATA_IRQ)))
		continue;


Also, older X86 platforms generally don't have an IOMMU (newer ones will)
and thus can't validate DMA transactions. I don't have the impression that's
the problem here though. But someone needs to decode the "Word2" of the
HPMC dump that you already provided.


> Also I've reproduce the problem again and this time I've had this message right before the "end_request" line :
> [  163.039983] timer_interrupt(CPU 0): delayed! cycles EB5EE1E6 rem 36AE6  next/now 706F7328/5BCE550E

Error handlers sometimes don't play nicely with interrupts.
I don't know enough about the error handling cases to track this down.

> Anything else I can do/provide to troubleshoot this ?

Two things:
o consider posting some of the original findings on linux-ide and see if
  anyone has tested this controller on PPC or IA64.  I'm looking for any
  other architecture that has "hard fail" behavior like parisc does.
  Testing on any other Big Endian HW would be worth hearing about too.

o write a quick and dirty "hpmc_symbols" script as described above and 
  run it on the HPMC you provided earlier.

Debugging this further wil probably require modifying the sata_sil driver 
to log (e.g. ktrace) it's activities while under test.

hth,
grant
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From - Thu Nov 08 21:03:16 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: uid/gid issues on 2.6.26-rc2
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On Sun, 18 May 2008, Thibaut VARENE wrote:

> Then, checking auth.log, I spotted a few very surprising things:
> 
> May 18 09:15:04 mkhppa3 sshd[1265]: Invalid user varenet from 147.215.7.200
> May 18 09:15:04 mkhppa3 sshd[1265]: Failed none for invalid user
> varenet from 147.215.7.200 port 58220 ssh2

I have seen this today testing 2.6.28 (32-bit UP).  The problem is also
present in postfix:

dave@hiauly6:/var/log$ less mail.err
Dec 27 12:45:41 hiauly6 postfix/sendmail[16726]: fatal: file /etc/postfix/main.cf: parameter mail_owner: unknown user name value: postfix

The only place this can occur is here:

static void check_mail_owner(void)
{
    struct passwd *pwd;

    if ((pwd = getpwnam(var_mail_owner)) == 0)
	msg_fatal("file %s/%s: parameter %s: unknown user name value: %s",
		  var_config_dir, MAIN_CONF_FILE,
		  VAR_MAIL_OWNER, var_mail_owner);

So, the problem is with getpwnam.  I don't see this with 2.6.22.19, so
the problem is likely a syscall issue.  These seem to be the syscalls
that directly relate to the getpwnam call:

open("/lib/libnss_files.so.2", O_RDONLY) = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0$\f\0\0\0004\0"..., 512) = 512
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 52324, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40b92000
mmap(0x40b9e000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xb000) = 0x40b9e000
close(3)                                = 0
munmap(0x4051b000, 30889)               = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40006000
open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 3
fcntl64(3, F_GETFD)                     = 0x1 (flags FD_CLOEXEC)
_llseek(3, 0, [0], SEEK_CUR)            = 0
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap2(NULL, 1557, PROT_READ, MAP_SHARED, 3, 0) = 0x407ae000
_llseek(3, 1557, [1557], SEEK_SET)      = 0
munmap(0x407ae000, 1557)                = 0
close(3)                                = 0
exit_group(0)                           = ?

The failure appears random.  I think the problem occurs shortly after
forking.  It doesn't seem to be present in the 64-bit SMP 2.6.28 test
kernel that I'm testing.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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From - Thu Nov 08 21:03:16 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] parisc: fix module loading failure of large kernel modules
Date: Mon, 29 Dec 2008 15:07:26 +0100
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Cc: Helge Deller <deller@gmx.de>
To: linux-parisc@vger.kernel.org,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Randolph Chung <randolph@tausq.org>,
	Moritz Muehlenhoff <jmm@
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The parisc port (esp. the 32bit kernel) currently lacks the ability to
load large kernel modules like xfs or ipv6. This is a long outstanding
bug and has already been reported a few times, e.g.:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=350482,
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=401439,
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=508489

The symptom is like this:
# modprobe xfs
FATAL: Error inserting xfs
(/lib/modules/2.6.26-1-parisc/kernel/fs/xfs/xfs.ko): Invalid module
format

In dmesg:
module xfs relocation of symbol xfs_btree_read_bufs is out of range
(0x3ffefffe in 17 bits)

The reason for the failure is, that the architecture only provides the
R_PARISC_PCREL17F (for 32bit kernels) and R_PARISC_PCREL22F (for PA2.0
and 64bit kernels) relocations, which sometimes can't reach the target
address of the stub entry if the kernel module is too large. Currently
parisc (like other architectures) creates one big PLT section for all
stubs at the beginning of the init and core sections.

The following two patches changes the parisc module loader to put stubs
in between the code sections instead, so that the distance to the stubs
more easily fits into the available 17/22 bits.

The first patch touches the generic module loader and adds a call to the
new module_additional_section_size() function to get_offset() if
CONFIG_ARCH_WANTS_STUBS_BEHIND_SECTIONS is defined. On parisc this
function returns the additional bytes for the stub area of a given section.

The second patch implements the parisc-specific changes.

Tested with 32- and 64bit parisc kernels.

Helge
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From - Thu Nov 08 21:03:16 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 1/2] module.c: fix module loading failure of large modules
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[PATCH 1/2] module.c: fix module loading failure of large modules

When creating the final layout of a kernel module in memory, allow the
module loader to reserve some additional memory behind a given section.
This is currently only needed for the parisc port which needs to put the
stub entries there to fulfill the 17/22bit PCREL relocations with large
kernel modules like xfs.

Signed-off-by: Helge Deller <deller@gmx.de>


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diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index eb10339..65fb34c 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -13,6 +13,9 @@ int module_frob_arch_sections(Elf_Ehdr *hdr,
 			      char *secstrings,
 			      struct module *mod);
 
+unsigned long module_additional_section_size(struct module *mod,
+					     unsigned int section);
+
 /* Allocator used for allocating struct module, core sections and init
    sections.  Returns NULL on failure. */
 void *module_alloc(unsigned long size);
diff --git a/kernel/module.c b/kernel/module.c
index 1f4cc00..c7662da 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1579,12 +1579,16 @@ static int simplify_symbols(Elf_Shdr *sechdrs,
 }
 
 /* Update size with this section: return offset. */
-static long get_offset(unsigned int *size, Elf_Shdr *sechdr)
+static long get_offset(struct module *mod, unsigned int *size,
+		Elf_Shdr *sechdr, unsigned int section)
 {
 	long ret;
 
 	ret = ALIGN(*size, sechdr->sh_addralign ?: 1);
 	*size = ret + sechdr->sh_size;
+#ifdef CONFIG_ARCH_WANTS_STUBS_BEHIND_SECTIONS
+	*size += module_additional_section_size(mod, section);
+#endif
 	return ret;
 }
 
@@ -1622,7 +1626,7 @@ static void layout_sections(struct module *mod,
 			    || strncmp(secstrings + s->sh_name,
 				       ".init", 5) == 0)
 				continue;
-			s->sh_entsize = get_offset(&mod->core_size, s);
+			s->sh_entsize = get_offset(mod, &mod->core_size, s, i);
 			DEBUGP("\t%s\n", secstrings + s->sh_name);
 		}
 		if (m == 0)
@@ -1640,7 +1644,7 @@ static void layout_sections(struct module *mod,
 			    || strncmp(secstrings + s->sh_name,
 				       ".init", 5) != 0)
 				continue;
-			s->sh_entsize = (get_offset(&mod->init_size, s)
+			s->sh_entsize = (get_offset(mod, &mod->init_size, s, i)
 					 | INIT_OFFSET_MASK);
 			DEBUGP("\t%s\n", secstrings + s->sh_name);
 		}

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From - Thu Nov 08 21:03:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 2/2] parisc: fix module loading failure of large modules
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--------------060902090404070205040905
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[PATCH 2/2] parisc: fix module loading failure of large modules

On 32bit (and sometimes 64bit) and with big kernel modules like xfs or
ipv6 the relocation types R_PARISC_PCREL17F and R_PARISC_PCREL22F may
fail to reach their PLT stub if we only create one big stub array for
all sections at the beginning of the core or init section.

With this patch we now instead append individual PLT stub entries
directly at the end of the code sections where the stubs are actually
called. This reduces the distance between the PCREL location and the
stub entry so that the relocations can be fulfilled.

The kernel module loader will call module_additional_section_size() and
request us to return the amount of additional memory we need for the
stubs of each section. The final section size of the code segment will
then be increased by that value when the kernel layouts the final
addresses of all sections.

Tested with 32- and 64bit kernels.

Signed-off-by: Helge Deller <deller@gmx.de>


--------------060902090404070205040905
Content-Type: text/plain;
 name="modules.patch2"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="modules.patch2"

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 644a70b..cbb622f 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -34,6 +34,9 @@ config RWSEM_GENERIC_SPINLOCK
 config RWSEM_XCHGADD_ALGORITHM
 	bool
 
+config ARCH_WANTS_STUBS_BEHIND_SECTIONS
+	def_bool y
+
 config ARCH_HAS_ILOG2_U32
 	bool
 	default n
diff --git a/arch/parisc/include/asm/module.h b/arch/parisc/include/asm/module.h
index c2cb49e..1f41234 100644
--- a/arch/parisc/include/asm/module.h
+++ b/arch/parisc/include/asm/module.h
@@ -23,8 +23,10 @@ struct mod_arch_specific
 {
 	unsigned long got_offset, got_count, got_max;
 	unsigned long fdesc_offset, fdesc_count, fdesc_max;
-	unsigned long stub_offset, stub_count, stub_max;
-	unsigned long init_stub_offset, init_stub_count, init_stub_max;
+	struct {
+		unsigned long stub_offset;
+		unsigned int stub_entries;
+		} *section;
 	int unwind_section;
 	struct unwind_table *unwind;
 };
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 44138c3..f57caf3 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -6,6 +6,7 @@
  *
  *    Linux/PA-RISC Project (http://www.parisc-linux.org/)
  *    Copyright (C) 2003 Randolph Chung <tausq at debian . org>
+ *    Copyright (C) 2008 Helge Deller <deller@gmx.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -24,6 +25,21 @@
  *
  *
  *    Notes:
+ *    - PLT stub handling
+ *      On 32bit (and sometimes 64bit) and with big kernel modules like xfs or
+ *      ipv6 the relocation types R_PARISC_PCREL17F and R_PARISC_PCREL22F may
+ *      fail to reach its PLT stub if we only create one big stub array for
+ *      all sections at the beginning of the core or init section.
+ *      Instead we now append individual PLT stub entries directly at the end
+ *      of the code sections where the stubs are actually called.
+ *      This reduces the distance between the PCREL location and the stub entry
+ *      so that the relocations can be fulfilled.
+ *      The kernel module loader will call module_additional_section_size()
+ *      and request us to return the amount of additional memory we need for
+ *      the stubs of each section. The final section size of the code segment
+ *      will then be increased by that value when the kernel layouts the final
+ *      addresses of all sections.
+ *
  *    - SEGREL32 handling
  *      We are not doing SEGREL32 handling correctly. According to the ABI, we
  *      should do a value offset, like this:
@@ -58,9 +74,13 @@
 #define DEBUGP(fmt...)
 #endif
 
+#define RELOC_REACHABLE(val, bits) \
+	(( ( !((val) & (1<<((bits)-1))) && ((val)>>(bits)) != 0 )  ||	\
+	     ( ((val) & (1<<((bits)-1))) && ((val)>>(bits)) != (((__typeof__(val))(~0))>>((bits)+2)))) ? \
+	0 : 1)
+
 #define CHECK_RELOC(val, bits) \
-	if ( ( !((val) & (1<<((bits)-1))) && ((val)>>(bits)) != 0 )  ||	\
-	     ( ((val) & (1<<((bits)-1))) && ((val)>>(bits)) != (((__typeof__(val))(~0))>>((bits)+2)))) { \
+	if (!RELOC_REACHABLE(val, bits)) { \
 		printk(KERN_ERR "module %s relocation of symbol %s is out of range (0x%lx in %d bits)\n", \
 		me->name, strtab + sym->st_name, (unsigned long)val, bits); \
 		return -ENOEXEC;			\
@@ -92,13 +112,6 @@ static inline int in_local(struct module *me, void *loc)
 	return in_init(me, loc) || in_core(me, loc);
 }
 
-static inline int in_local_section(struct module *me, void *loc, void *dot)
-{
-	return (in_init(me, loc) && in_init(me, dot)) ||
-		(in_core(me, loc) && in_core(me, dot));
-}
-
-
 #ifndef CONFIG_64BIT
 struct got_entry {
 	Elf32_Addr addr;
@@ -258,23 +271,42 @@ static inline unsigned long count_stubs(const Elf_Rela *rela, unsigned long n)
 /* Free memory returned from module_alloc */
 void module_free(struct module *mod, void *module_region)
 {
+	kfree(mod->arch.section);
+	mod->arch.section = NULL;
+
 	vfree(module_region);
 	/* FIXME: If module_region == mod->init_region, trim exception
            table entries. */
 }
 
+/* return number of additional bytes to reserve for a section */
+unsigned long module_additional_section_size(struct module *mod,
+					     unsigned int section)
+{
+	/* size needed for all stubs of this section (including
+	 * one additional for correct alignment of the stubs) */
+	return (mod->arch.section[section].stub_entries + 1)
+		* sizeof(struct stub_entry);
+}
+
 #define CONST 
 int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 			      CONST Elf_Shdr *sechdrs,
 			      CONST char *secstrings,
 			      struct module *me)
 {
-	unsigned long gots = 0, fdescs = 0, stubs = 0, init_stubs = 0;
+	unsigned long gots = 0, fdescs = 0, len;
 	unsigned int i;
 
+	len = hdr->e_shnum * sizeof(me->arch.section[0]);
+	me->arch.section = kzalloc(len, GFP_KERNEL);
+	if (!me->arch.section)
+		return -ENOMEM;
+
 	for (i = 1; i < hdr->e_shnum; i++) {
-		const Elf_Rela *rels = (void *)hdr + sechdrs[i].sh_offset;
+		const Elf_Rela *rels = (void *)sechdrs[i].sh_addr;
 		unsigned long nrels = sechdrs[i].sh_size / sizeof(*rels);
+		unsigned int count, s;
 
 		if (strncmp(secstrings + sechdrs[i].sh_name,
 			    ".PARISC.unwind", 14) == 0)
@@ -290,11 +322,24 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 		 */
 		gots += count_gots(rels, nrels);
 		fdescs += count_fdescs(rels, nrels);
-		if(strncmp(secstrings + sechdrs[i].sh_name,
-			   ".rela.init", 10) == 0)
-			init_stubs += count_stubs(rels, nrels);
-		else
-			stubs += count_stubs(rels, nrels);
+
+		/* XXX: By sorting the relocs and finding duplicate entries
+		 *  we could reduce the number of necessary stubs and save
+		 *  some memory. */
+		count = count_stubs(rels, nrels);
+		if (!count)
+			continue;
+
+		/* so we need relocation stubs. reserve necessary memory. */
+		/* sh_info gives the section for which we need to add stubs. */
+		s = sechdrs[i].sh_info;
+
+		/* amunt of stubs we want to add to this section */
+		WARN_ON(me->arch.section[s].stub_entries);
+		me->arch.section[s].stub_entries += count;
+
+		/* stubs start at end of the section */
+		me->arch.section[s].stub_offset = sechdrs[s].sh_size;
 	}
 
 	/* align things a bit */
@@ -306,18 +351,8 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 	me->arch.fdesc_offset = me->core_size;
 	me->core_size += fdescs * sizeof(Elf_Fdesc);
 
-	me->core_size = ALIGN(me->core_size, 16);
-	me->arch.stub_offset = me->core_size;
-	me->core_size += stubs * sizeof(struct stub_entry);
-
-	me->init_size = ALIGN(me->init_size, 16);
-	me->arch.init_stub_offset = me->init_size;
-	me->init_size += init_stubs * sizeof(struct stub_entry);
-
 	me->arch.got_max = gots;
 	me->arch.fdesc_max = fdescs;
-	me->arch.stub_max = stubs;
-	me->arch.init_stub_max = init_stubs;
 
 	return 0;
 }
@@ -380,22 +415,18 @@ enum elf_stub_type {
 };
 
 static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
-	enum elf_stub_type stub_type, int init_section)
+	enum elf_stub_type stub_type, Elf_Addr loc0, unsigned int targetsec)
 {
-	unsigned long i;
 	struct stub_entry *stub;
 
-	if(init_section) {
-		i = me->arch.init_stub_count++;
-		BUG_ON(me->arch.init_stub_count > me->arch.init_stub_max);
-		stub = me->module_init + me->arch.init_stub_offset + 
-			i * sizeof(struct stub_entry);
-	} else {
-		i = me->arch.stub_count++;
-		BUG_ON(me->arch.stub_count > me->arch.stub_max);
-		stub = me->module_core + me->arch.stub_offset + 
-			i * sizeof(struct stub_entry);
-	}
+	/* do not write outside available stub area */
+	BUG_ON(0 == me->arch.section[targetsec].stub_entries--);
+
+	/* calculate address of next stub entry, take care of alignment */
+	loc0 += me->arch.section[targetsec].stub_offset;
+	loc0 = ALIGN(loc0, sizeof(struct stub_entry));
+	stub = (void *) loc0;
+	me->arch.section[targetsec].stub_offset += sizeof(struct stub_entry);
 
 #ifndef CONFIG_64BIT
 /* for 32-bit the stub looks like this:
@@ -489,15 +520,19 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 	Elf32_Addr val;
 	Elf32_Sword addend;
 	Elf32_Addr dot;
+	Elf_Addr loc0;
+	unsigned int targetsec = sechdrs[relsec].sh_info;
 	//unsigned long dp = (unsigned long)$global$;
 	register unsigned long dp asm ("r27");
 
 	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
+	       targetsec);
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
 		/* This is where to make the change */
-		loc = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+		loc = (void *)sechdrs[targetsec].sh_addr
 		      + rel[i].r_offset;
+		/* This is the start of the target section */
+		loc0 = sechdrs[targetsec].sh_addr;
 		/* This is the symbol it is referring to */
 		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
 			+ ELF32_R_SYM(rel[i].r_info);
@@ -569,19 +604,32 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			break;
 		case R_PARISC_PCREL17F:
 			/* 17-bit PC relative address */
-			val = get_stub(me, val, addend, ELF_STUB_GOT, in_init(me, loc));
+			/* calculate direct call offset */
+			val += addend;
 			val = (val - dot - 8)/4;
-			CHECK_RELOC(val, 17)
+			if (!RELOC_REACHABLE(val, 17)) {
+				/* direct distance too far, create
+				 * stub entry instead */
+				val = get_stub(me, sym->st_value, addend,
+					ELF_STUB_DIRECT, loc0, targetsec);
+				val = (val - dot - 8)/4;
+				CHECK_RELOC(val, 17);
+			}
 			*loc = (*loc & ~0x1f1ffd) | reassemble_17(val);
 			break;
 		case R_PARISC_PCREL22F:
 			/* 22-bit PC relative address; only defined for pa20 */
-			val = get_stub(me, val, addend, ELF_STUB_GOT, in_init(me, loc));
-			DEBUGP("STUB FOR %s loc %lx+%lx at %lx\n", 
-			       strtab + sym->st_name, (unsigned long)loc, addend, 
-			       val)
+			/* calculate direct call offset */
+			val += addend;
 			val = (val - dot - 8)/4;
-			CHECK_RELOC(val, 22);
+			if (!RELOC_REACHABLE(val, 22)) {
+				/* direct distance too far, create
+				 * stub entry instead */
+				val = get_stub(me, sym->st_value, addend,
+					ELF_STUB_DIRECT, loc0, targetsec);
+				val = (val - dot - 8)/4;
+				CHECK_RELOC(val, 22);
+			}
 			*loc = (*loc & ~0x3ff1ffd) | reassemble_22(val);
 			break;
 
@@ -610,13 +658,17 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 	Elf64_Addr val;
 	Elf64_Sxword addend;
 	Elf64_Addr dot;
+	Elf_Addr loc0;
+	unsigned int targetsec = sechdrs[relsec].sh_info;
 
 	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
+	       targetsec);
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
 		/* This is where to make the change */
-		loc = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+		loc = (void *)sechdrs[targetsec].sh_addr
 		      + rel[i].r_offset;
+		/* This is the start of the target section */
+		loc0 = sechdrs[targetsec].sh_addr;
 		/* This is the symbol it is referring to */
 		sym = (Elf64_Sym *)sechdrs[symindex].sh_addr
 			+ ELF64_R_SYM(rel[i].r_info);
@@ -672,42 +724,40 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			DEBUGP("PCREL22F Symbol %s loc %p val %lx\n",
 			       strtab + sym->st_name,
 			       loc, val);
+			val += addend;
 			/* can we reach it locally? */
-			if(!in_local_section(me, (void *)val, (void *)dot)) {
-
-				if (in_local(me, (void *)val))
-					/* this is the case where the
-					 * symbol is local to the
-					 * module, but in a different
-					 * section, so stub the jump
-					 * in case it's more than 22
-					 * bits away */
-					val = get_stub(me, val, addend, ELF_STUB_DIRECT,
-						       in_init(me, loc));
-				else if (strncmp(strtab + sym->st_name, "$$", 2)
+			if (in_local(me, (void *)val)) {
+				/* this is the case where the symbol is local
+				 * to the module, but in a different section,
+				 * so stub the jump in case it's more than 22
+				 * bits away */
+				val = (val - dot - 8)/4;
+				if (!RELOC_REACHABLE(val, 22)) {
+					/* direct distance too far, create
+					 * stub entry instead */
+					val = get_stub(me, sym->st_value,
+						addend, ELF_STUB_DIRECT,
+						loc0, targetsec);
+				} else {
+					/* Ok, we can reach it directly. */
+					val = sym->st_value;
+					val += addend;
+				}
+			} else {
+				val = sym->st_value;
+				if (strncmp(strtab + sym->st_name, "$$", 2)
 				    == 0)
 					val = get_stub(me, val, addend, ELF_STUB_MILLI,
-						       in_init(me, loc));
+						       loc0, targetsec);
 				else
 					val = get_stub(me, val, addend, ELF_STUB_GOT,
-						       in_init(me, loc));
+						       loc0, targetsec);
 			}
 			DEBUGP("STUB FOR %s loc %lx, val %lx+%lx at %lx\n", 
 			       strtab + sym->st_name, loc, sym->st_value,
 			       addend, val);
-			/* FIXME: local symbols work as long as the
-			 * core and init pieces aren't separated too
-			 * far.  If this is ever broken, you will trip
-			 * the check below.  The way to fix it would
-			 * be to generate local stubs to go between init
-			 * and core */
-			if((Elf64_Sxword)(val - dot - 8) > 0x800000 -1 ||
-			   (Elf64_Sxword)(val - dot - 8) < -0x800000) {
-				printk(KERN_ERR "Module %s, symbol %s is out of range for PCREL22F relocation\n",
-				       me->name, strtab + sym->st_name);
-				return -ENOEXEC;
-			}
 			val = (val - dot - 8)/4;
+			CHECK_RELOC(val, 22);
 			*loc = (*loc & ~0x3ff1ffd) | reassemble_22(val);
 			break;
 		case R_PARISC_DIR64:
@@ -794,12 +844,8 @@ int module_finalize(const Elf_Ehdr *hdr,
 	addr = (u32 *)entry->addr;
 	printk("INSNS: %x %x %x %x\n",
 	       addr[0], addr[1], addr[2], addr[3]);
-	printk("stubs used %ld, stubs max %ld\n"
-	       "init_stubs used %ld, init stubs max %ld\n"
-	       "got entries used %ld, gots max %ld\n"
+	printk("got entries used %ld, gots max %ld\n"
 	       "fdescs used %ld, fdescs max %ld\n",
-	       me->arch.stub_count, me->arch.stub_max,
-	       me->arch.init_stub_count, me->arch.init_stub_max,
 	       me->arch.got_count, me->arch.got_max,
 	       me->arch.fdesc_count, me->arch.fdesc_max);
 #endif
@@ -829,7 +875,10 @@ int module_finalize(const Elf_Ehdr *hdr,
 				me->name, me->arch.got_count, MAX_GOTS);
 		return -EINVAL;
 	}
-	
+
+	kfree(me->arch.section);
+	me->arch.section = NULL;
+
 	/* no symbol table */
 	if(symhdr == NULL)
 		return 0;

--------------060902090404070205040905--
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From: Sam Ravnborg <sam@ravnborg.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 2/2] parisc: fix module loading failure of large modules
Date: Mon, 29 Dec 2008 16:46:10 +0100
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Cc: linux-parisc@vger.kernel.org,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Randolph Chung <randolph@tausq.org>,
	Moritz Muehlenhoff <jmm@inutil.org>,
	Linus <torvalds@linux-foundation.org>,
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To: Helge Deller <deller@gmx.de>
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On Mon, Dec 29, 2008 at 03:10:28PM +0100, Helge Deller wrote:
> [PATCH 2/2] parisc: fix module loading failure of large modules
> 
> On 32bit (and sometimes 64bit) and with big kernel modules like xfs or
> ipv6 the relocation types R_PARISC_PCREL17F and R_PARISC_PCREL22F may
> fail to reach their PLT stub if we only create one big stub array for
> all sections at the beginning of the core or init section.
> 
> With this patch we now instead append individual PLT stub entries
> directly at the end of the code sections where the stubs are actually
> called. This reduces the distance between the PCREL location and the
> stub entry so that the relocations can be fulfilled.
> 
> The kernel module loader will call module_additional_section_size() and
> request us to return the amount of additional memory we need for the
> stubs of each section. The final section size of the code segment will
> then be increased by that value when the kernel layouts the final
> addresses of all sections.
> 
> Tested with 32- and 64bit kernels.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 

> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index 644a70b..cbb622f 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -34,6 +34,9 @@ config RWSEM_GENERIC_SPINLOCK
>  config RWSEM_XCHGADD_ALGORITHM
>  	bool
>  
> +config ARCH_WANTS_STUBS_BEHIND_SECTIONS
> +	def_bool y
> +

The recommended practive today is:

In some relevant Kconfig file add:

config HAVE_MODULE_SECTION_STUBS
	bool

And then in arch/$ARCH/Kconfig do:

config PARISC
	...
	select HAVE_MODULE_SECTION_STUBS
	...

The select are supposed to be sorted alphabetically
but people seems to use a different alphabet for
each arch.

	Sam
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From - Thu Nov 08 21:03:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 2/2] parisc: fix module loading failure of large modules
Date: Mon, 29 Dec 2008 17:09:44 +0100
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	Linux Kernel Development <linux-kernel@vger.kernel.org>,
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	Randolph Chung <randolph@tausq.org>,
	Moritz Muehlenhoff <jmm@inutil.org>,
	Linus <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Helge Deller <deller@gmx.de>
To: Sam Ravnborg <sam@ravnborg.org>
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Sam Ravnborg wrote:
> On Mon, Dec 29, 2008 at 03:10:28PM +0100, Helge Deller wrote:
>> [PATCH 2/2] parisc: fix module loading failure of large modules
>>
>> On 32bit (and sometimes 64bit) and with big kernel modules like xfs or
>> ipv6 the relocation types R_PARISC_PCREL17F and R_PARISC_PCREL22F may
>> fail to reach their PLT stub if we only create one big stub array for
>> all sections at the beginning of the core or init section.
>>
>> With this patch we now instead append individual PLT stub entries
>> directly at the end of the code sections where the stubs are actually
>> called. This reduces the distance between the PCREL location and the
>> stub entry so that the relocations can be fulfilled.
>>
>> The kernel module loader will call module_additional_section_size() and
>> request us to return the amount of additional memory we need for the
>> stubs of each section. The final section size of the code segment will
>> then be increased by that value when the kernel layouts the final
>> addresses of all sections.
>>
>> Tested with 32- and 64bit kernels.
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
> 
>> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
>> index 644a70b..cbb622f 100644
>> --- a/arch/parisc/Kconfig
>> +++ b/arch/parisc/Kconfig
>> @@ -34,6 +34,9 @@ config RWSEM_GENERIC_SPINLOCK
>>  config RWSEM_XCHGADD_ALGORITHM
>>  	bool
>>  
>> +config ARCH_WANTS_STUBS_BEHIND_SECTIONS
>> +	def_bool y
>> +
> 
> The recommended practive today is:
> 
> In some relevant Kconfig file add:
> 
> config HAVE_MODULE_SECTION_STUBS
> 	bool
> 
> And then in arch/$ARCH/Kconfig do:
> 
> config PARISC
> 	...
> 	select HAVE_MODULE_SECTION_STUBS
> 	...
> 
> The select are supposed to be sorted alphabetically
> but people seems to use a different alphabet for
> each arch.

Thanks Sam,
I'll change that and respin.

Helge
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From - Thu Nov 08 21:03:17 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 2/2] parisc: fix module loading failure of large modules
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To: deller@gmx.de (Helge Deller)
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Hi Helge,

> With this patch we now instead append individual PLT stub entries
> directly at the end of the code sections where the stubs are actually
> called. This reduces the distance between the PCREL location and the
> stub entry so that the relocations can be fulfilled.

GCC for PA-RISC assumes that the stubs will be placed before the code
section.  This is what HP-UX does.  It's also not possible to compute
the distance to the end of a function in GCC due to the way branch
shortening is done.  If the distance to the start of the code section
is too large, GCC outputs a long call.

If you can insert them before the code section where the stubs are
called, this will minimize the chance that a pc-relative call will
not reach its stub.

It is possible to put the stubs after the code section if you can ensure
the distance for each call isn't too large.  I believe GNU ld does some
consolidation of stub blocks.

Great patch!

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:17 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH 2/2] parisc: fix module loading failure of large modules
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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John David Anglin wrote:
> Hi Helge,
> 
>> With this patch we now instead append individual PLT stub entries
>> directly at the end of the code sections where the stubs are actually
>> called. This reduces the distance between the PCREL location and the
>> stub entry so that the relocations can be fulfilled.
> 
> GCC for PA-RISC assumes that the stubs will be placed before the code
> section.  This is what HP-UX does.  It's also not possible to compute
> the distance to the end of a function in GCC due to the way branch
> shortening is done.  If the distance to the start of the code section
> is too large, GCC outputs a long call.

Interesting. I didn't knew that.

> If you can insert them before the code section where the stubs are
> called, this will minimize the chance that a pc-relative call will
> not reach its stub.

Yes, good idea.
I'll change that and send an updated patch.

> Great patch!

Thanks!

Helge
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From - Thu Nov 08 21:03:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] parisc: fix module loading failure of large kernel modules
 (take 2)
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To: linux-parisc <linux-parisc@vger.kernel.org>,
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This is the second take of the patch series.
Changes to previous version:
- new CONFIG_HAVE_MODULE_SECTION_STUBS config option
- put stub entries of a code section in front of the section

____________
The parisc port (esp. the 32bit kernel) currently lacks the ability to
load large kernel modules like xfs or ipv6. This is a long outstanding
bug and has already been reported a few times, e.g.:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=350482,
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=401439,
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=508489

The symptom is like this:
# modprobe xfs
FATAL: Error inserting xfs
(/lib/modules/2.6.26-1-parisc/kernel/fs/xfs/xfs.ko): Invalid module
format

In dmesg:
module xfs relocation of symbol xfs_btree_read_bufs is out of range
(0x3ffefffe in 17 bits)

The reason for the failure is, that the architecture only provides the
R_PARISC_PCREL17F (for 32bit kernels) and R_PARISC_PCREL22F (for PA2.0
and 64bit kernels) relocations, which sometimes can't reach the target
address of the stub entry if the kernel module is too large. Currently
parisc (like other architectures) creates one big PLT section for all
stubs at the beginning of the init and core sections.

The following two patches changes the parisc module loader to put stubs
for the code sections in front of each section, so that the distance to
the stubs more easily fits into the available 17/22 bits.

The first patch touches the generic module loader and adds a call to the
new module_additional_section_size() function to get_offset() if
CONFIG_HAVE_MODULE_SECTION_STUBS is defined. On parisc this
function returns the additional bytes for the stub area of a given section.

The second patch implements the parisc-specific changes.

Tested with 32- and 64bit parisc kernels.

Helge

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Subject: [PATCH 1/2] module.c: fix module loading failure of large modules
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[PATCH 1/2] module.c: fix module loading failure of large modules (take 2)

When creating the final layout of a kernel module in memory, allow the
module loader to reserve some additional memory in front of a given section.
This is currently only needed for the parisc port which needs to put the
stub entries there to fulfill the 17/22bit PCREL relocations with large
kernel modules like xfs.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index eb10339..65fb34c 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -13,6 +13,9 @@ int module_frob_arch_sections(Elf_Ehdr *hdr,
 			      char *secstrings,
 			      struct module *mod);
 
+unsigned long module_additional_section_size(struct module *mod,
+					     unsigned int section);
+
 /* Allocator used for allocating struct module, core sections and init
    sections.  Returns NULL on failure. */
 void *module_alloc(unsigned long size);
diff --git a/init/Kconfig b/init/Kconfig
index f763762..5383815 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -908,6 +908,9 @@ config MODULE_SRCVERSION_ALL
 	  the version).  With this option, such a "srcversion" field
 	  will be created for all modules.  If unsure, say N.
 
+config HAVE_MODULE_SECTION_STUBS
+	bool
+
 config KMOD
 	def_bool y
 	help
diff --git a/kernel/module.c b/kernel/module.c
index 1f4cc00..4b86308 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1579,10 +1579,15 @@ static int simplify_symbols(Elf_Shdr *sechdrs,
 }
 
 /* Update size with this section: return offset. */
-static long get_offset(unsigned int *size, Elf_Shdr *sechdr)
+static long get_offset(struct module *mod, unsigned int *size,
+		Elf_Shdr *sechdr, unsigned int section)
 {
 	long ret;
 
+#ifdef CONFIG_HAVE_MODULE_SECTION_STUBS
+	/* allocate some memory for stubs in front of each section */
+	*size += module_additional_section_size(mod, section);
+#endif
 	ret = ALIGN(*size, sechdr->sh_addralign ?: 1);
 	*size = ret + sechdr->sh_size;
 	return ret;
@@ -1622,7 +1627,7 @@ static void layout_sections(struct module *mod,
 			    || strncmp(secstrings + s->sh_name,
 				       ".init", 5) == 0)
 				continue;
-			s->sh_entsize = get_offset(&mod->core_size, s);
+			s->sh_entsize = get_offset(mod, &mod->core_size, s, i);
 			DEBUGP("\t%s\n", secstrings + s->sh_name);
 		}
 		if (m == 0)
@@ -1640,7 +1645,7 @@ static void layout_sections(struct module *mod,
 			    || strncmp(secstrings + s->sh_name,
 				       ".init", 5) != 0)
 				continue;
-			s->sh_entsize = (get_offset(&mod->init_size, s)
+			s->sh_entsize = (get_offset(mod, &mod->init_size, s, i)
 					 | INIT_OFFSET_MASK);
 			DEBUGP("\t%s\n", secstrings + s->sh_name);
 		}
--
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From - Thu Nov 08 21:03:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 2/2] parisc: fix module loading failure of large modules (take
 2)
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To: linux-parisc <linux-parisc@vger.kernel.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Randolph Chung <randolph@tausq.org>,
	Linus <to
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[PATCH 2/2] parisc: fix module loading failure of large modules (take 2)

On 32bit (and sometimes 64bit) and with big kernel modules like xfs or
ipv6 the relocation types R_PARISC_PCREL17F and R_PARISC_PCREL22F may
fail to reach their PLT stub if we only create one big stub array for
all sections at the beginning of the core or init section.

With this patch we now instead add individual PLT stub entries
directly in front of the code sections where the stubs are actually
called. This reduces the distance between the PCREL location and the
stub entry so that the relocations can be fulfilled.

The kernel module loader will call module_additional_section_size() and
request us to return the amount of additional memory we need for the
stubs of each section. This memory will then be allocated in front
of the code code segment when the kernel layouts the final addresses 
of all sections.

Tested with 32- and 64bit kernels.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 644a70b..f975e31 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -9,6 +9,7 @@ config PARISC
 	def_bool y
 	select HAVE_IDE
 	select HAVE_OPROFILE
+	select HAVE_MODULE_SECTION_STUBS
 	select RTC_CLASS
 	select RTC_DRV_PARISC
 	help
diff --git a/arch/parisc/include/asm/module.h b/arch/parisc/include/asm/module.h
index c2cb49e..1f41234 100644
--- a/arch/parisc/include/asm/module.h
+++ b/arch/parisc/include/asm/module.h
@@ -23,8 +23,10 @@ struct mod_arch_specific
 {
 	unsigned long got_offset, got_count, got_max;
 	unsigned long fdesc_offset, fdesc_count, fdesc_max;
-	unsigned long stub_offset, stub_count, stub_max;
-	unsigned long init_stub_offset, init_stub_count, init_stub_max;
+	struct {
+		unsigned long stub_offset;
+		unsigned int stub_entries;
+		} *section;
 	int unwind_section;
 	struct unwind_table *unwind;
 };
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 44138c3..f8129ce 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -6,6 +6,7 @@
  *
  *    Linux/PA-RISC Project (http://www.parisc-linux.org/)
  *    Copyright (C) 2003 Randolph Chung <tausq at debian . org>
+ *    Copyright (C) 2008 Helge Deller <deller@gmx.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -24,6 +25,20 @@
  *
  *
  *    Notes:
+ *    - PLT stub handling
+ *      On 32bit (and sometimes 64bit) and with big kernel modules like xfs or
+ *      ipv6 the relocation types R_PARISC_PCREL17F and R_PARISC_PCREL22F may
+ *      fail to reach its PLT stub if we only create one big stub array for
+ *      all sections at the beginning of the core or init section.
+ *      Instead we now insert individual PLT stub entries directly in front of
+ *      of the code sections where the stubs are actually called.
+ *      This reduces the distance between the PCREL location and the stub entry
+ *      so that the relocations can be fulfilled.
+ *      The kernel module loader will call module_additional_section_size()
+ *      and request us to return the amount of additional memory we need for
+ *      the stubs of each section. This memory will then be allocated in front
+ *      of the code code segment.
+ *
  *    - SEGREL32 handling
  *      We are not doing SEGREL32 handling correctly. According to the ABI, we
  *      should do a value offset, like this:
@@ -58,9 +73,13 @@
 #define DEBUGP(fmt...)
 #endif
 
+#define RELOC_REACHABLE(val, bits) \
+	(( ( !((val) & (1<<((bits)-1))) && ((val)>>(bits)) != 0 )  ||	\
+	     ( ((val) & (1<<((bits)-1))) && ((val)>>(bits)) != (((__typeof__(val))(~0))>>((bits)+2)))) ? \
+	0 : 1)
+
 #define CHECK_RELOC(val, bits) \
-	if ( ( !((val) & (1<<((bits)-1))) && ((val)>>(bits)) != 0 )  ||	\
-	     ( ((val) & (1<<((bits)-1))) && ((val)>>(bits)) != (((__typeof__(val))(~0))>>((bits)+2)))) { \
+	if (!RELOC_REACHABLE(val, bits)) { \
 		printk(KERN_ERR "module %s relocation of symbol %s is out of range (0x%lx in %d bits)\n", \
 		me->name, strtab + sym->st_name, (unsigned long)val, bits); \
 		return -ENOEXEC;			\
@@ -92,13 +111,6 @@ static inline int in_local(struct module *me, void *loc)
 	return in_init(me, loc) || in_core(me, loc);
 }
 
-static inline int in_local_section(struct module *me, void *loc, void *dot)
-{
-	return (in_init(me, loc) && in_init(me, dot)) ||
-		(in_core(me, loc) && in_core(me, dot));
-}
-
-
 #ifndef CONFIG_64BIT
 struct got_entry {
 	Elf32_Addr addr;
@@ -258,23 +270,42 @@ static inline unsigned long count_stubs(const Elf_Rela *rela, unsigned long n)
 /* Free memory returned from module_alloc */
 void module_free(struct module *mod, void *module_region)
 {
+	kfree(mod->arch.section);
+	mod->arch.section = NULL;
+
 	vfree(module_region);
 	/* FIXME: If module_region == mod->init_region, trim exception
            table entries. */
 }
 
+/* return number of additional bytes to reserve for a section */
+unsigned long module_additional_section_size(struct module *mod,
+					     unsigned int section)
+{
+	/* size needed for all stubs of this section (including
+	 * one additional for correct alignment of the stubs) */
+	return (mod->arch.section[section].stub_entries + 1)
+		* sizeof(struct stub_entry);
+}
+
 #define CONST 
 int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 			      CONST Elf_Shdr *sechdrs,
 			      CONST char *secstrings,
 			      struct module *me)
 {
-	unsigned long gots = 0, fdescs = 0, stubs = 0, init_stubs = 0;
+	unsigned long gots = 0, fdescs = 0, len;
 	unsigned int i;
 
+	len = hdr->e_shnum * sizeof(me->arch.section[0]);
+	me->arch.section = kzalloc(len, GFP_KERNEL);
+	if (!me->arch.section)
+		return -ENOMEM;
+
 	for (i = 1; i < hdr->e_shnum; i++) {
-		const Elf_Rela *rels = (void *)hdr + sechdrs[i].sh_offset;
+		const Elf_Rela *rels = (void *)sechdrs[i].sh_addr;
 		unsigned long nrels = sechdrs[i].sh_size / sizeof(*rels);
+		unsigned int count, s;
 
 		if (strncmp(secstrings + sechdrs[i].sh_name,
 			    ".PARISC.unwind", 14) == 0)
@@ -290,11 +321,23 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 		 */
 		gots += count_gots(rels, nrels);
 		fdescs += count_fdescs(rels, nrels);
-		if(strncmp(secstrings + sechdrs[i].sh_name,
-			   ".rela.init", 10) == 0)
-			init_stubs += count_stubs(rels, nrels);
-		else
-			stubs += count_stubs(rels, nrels);
+
+		/* XXX: By sorting the relocs and finding duplicate entries
+		 *  we could reduce the number of necessary stubs and save
+		 *  some memory. */
+		count = count_stubs(rels, nrels);
+		if (!count)
+			continue;
+
+		/* so we need relocation stubs. reserve necessary memory. */
+		/* sh_info gives the section for which we need to add stubs. */
+		s = sechdrs[i].sh_info;
+
+		/* each code section should only have one relocation section */
+		WARN_ON(me->arch.section[s].stub_entries);
+
+		/* store number of stubs we need for this section */
+		me->arch.section[s].stub_entries += count;
 	}
 
 	/* align things a bit */
@@ -306,18 +349,8 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 	me->arch.fdesc_offset = me->core_size;
 	me->core_size += fdescs * sizeof(Elf_Fdesc);
 
-	me->core_size = ALIGN(me->core_size, 16);
-	me->arch.stub_offset = me->core_size;
-	me->core_size += stubs * sizeof(struct stub_entry);
-
-	me->init_size = ALIGN(me->init_size, 16);
-	me->arch.init_stub_offset = me->init_size;
-	me->init_size += init_stubs * sizeof(struct stub_entry);
-
 	me->arch.got_max = gots;
 	me->arch.fdesc_max = fdescs;
-	me->arch.stub_max = stubs;
-	me->arch.init_stub_max = init_stubs;
 
 	return 0;
 }
@@ -380,23 +413,27 @@ enum elf_stub_type {
 };
 
 static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
-	enum elf_stub_type stub_type, int init_section)
+	enum elf_stub_type stub_type, Elf_Addr loc0, unsigned int targetsec)
 {
-	unsigned long i;
 	struct stub_entry *stub;
 
-	if(init_section) {
-		i = me->arch.init_stub_count++;
-		BUG_ON(me->arch.init_stub_count > me->arch.init_stub_max);
-		stub = me->module_init + me->arch.init_stub_offset + 
-			i * sizeof(struct stub_entry);
-	} else {
-		i = me->arch.stub_count++;
-		BUG_ON(me->arch.stub_count > me->arch.stub_max);
-		stub = me->module_core + me->arch.stub_offset + 
-			i * sizeof(struct stub_entry);
+	/* initialize stub_offset to point in front of the section */
+	if (!me->arch.section[targetsec].stub_offset) {
+		loc0 -= (me->arch.section[targetsec].stub_entries + 1) *
+				sizeof(struct stub_entry);
+		/* get correct alignment for the stubs */
+		loc0 = ALIGN(loc0, sizeof(struct stub_entry));
+		me->arch.section[targetsec].stub_offset = loc0;
 	}
 
+	/* get address of stub entry */
+	stub = (void *) me->arch.section[targetsec].stub_offset;
+	me->arch.section[targetsec].stub_offset += sizeof(struct stub_entry);
+
+	/* do not write outside available stub area */
+	BUG_ON(0 == me->arch.section[targetsec].stub_entries--);
+
+
 #ifndef CONFIG_64BIT
 /* for 32-bit the stub looks like this:
  * 	ldil L'XXX,%r1
@@ -489,15 +526,19 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 	Elf32_Addr val;
 	Elf32_Sword addend;
 	Elf32_Addr dot;
+	Elf_Addr loc0;
+	unsigned int targetsec = sechdrs[relsec].sh_info;
 	//unsigned long dp = (unsigned long)$global$;
 	register unsigned long dp asm ("r27");
 
 	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
+	       targetsec);
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
 		/* This is where to make the change */
-		loc = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+		loc = (void *)sechdrs[targetsec].sh_addr
 		      + rel[i].r_offset;
+		/* This is the start of the target section */
+		loc0 = sechdrs[targetsec].sh_addr;
 		/* This is the symbol it is referring to */
 		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
 			+ ELF32_R_SYM(rel[i].r_info);
@@ -569,19 +610,32 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			break;
 		case R_PARISC_PCREL17F:
 			/* 17-bit PC relative address */
-			val = get_stub(me, val, addend, ELF_STUB_GOT, in_init(me, loc));
+			/* calculate direct call offset */
+			val += addend;
 			val = (val - dot - 8)/4;
-			CHECK_RELOC(val, 17)
+			if (!RELOC_REACHABLE(val, 17)) {
+				/* direct distance too far, create
+				 * stub entry instead */
+				val = get_stub(me, sym->st_value, addend,
+					ELF_STUB_DIRECT, loc0, targetsec);
+				val = (val - dot - 8)/4;
+				CHECK_RELOC(val, 17);
+			}
 			*loc = (*loc & ~0x1f1ffd) | reassemble_17(val);
 			break;
 		case R_PARISC_PCREL22F:
 			/* 22-bit PC relative address; only defined for pa20 */
-			val = get_stub(me, val, addend, ELF_STUB_GOT, in_init(me, loc));
-			DEBUGP("STUB FOR %s loc %lx+%lx at %lx\n", 
-			       strtab + sym->st_name, (unsigned long)loc, addend, 
-			       val)
+			/* calculate direct call offset */
+			val += addend;
 			val = (val - dot - 8)/4;
-			CHECK_RELOC(val, 22);
+			if (!RELOC_REACHABLE(val, 22)) {
+				/* direct distance too far, create
+				 * stub entry instead */
+				val = get_stub(me, sym->st_value, addend,
+					ELF_STUB_DIRECT, loc0, targetsec);
+				val = (val - dot - 8)/4;
+				CHECK_RELOC(val, 22);
+			}
 			*loc = (*loc & ~0x3ff1ffd) | reassemble_22(val);
 			break;
 
@@ -610,13 +664,17 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 	Elf64_Addr val;
 	Elf64_Sxword addend;
 	Elf64_Addr dot;
+	Elf_Addr loc0;
+	unsigned int targetsec = sechdrs[relsec].sh_info;
 
 	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
+	       targetsec);
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
 		/* This is where to make the change */
-		loc = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+		loc = (void *)sechdrs[targetsec].sh_addr
 		      + rel[i].r_offset;
+		/* This is the start of the target section */
+		loc0 = sechdrs[targetsec].sh_addr;
 		/* This is the symbol it is referring to */
 		sym = (Elf64_Sym *)sechdrs[symindex].sh_addr
 			+ ELF64_R_SYM(rel[i].r_info);
@@ -672,42 +730,40 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			DEBUGP("PCREL22F Symbol %s loc %p val %lx\n",
 			       strtab + sym->st_name,
 			       loc, val);
+			val += addend;
 			/* can we reach it locally? */
-			if(!in_local_section(me, (void *)val, (void *)dot)) {
-
-				if (in_local(me, (void *)val))
-					/* this is the case where the
-					 * symbol is local to the
-					 * module, but in a different
-					 * section, so stub the jump
-					 * in case it's more than 22
-					 * bits away */
-					val = get_stub(me, val, addend, ELF_STUB_DIRECT,
-						       in_init(me, loc));
-				else if (strncmp(strtab + sym->st_name, "$$", 2)
+			if (in_local(me, (void *)val)) {
+				/* this is the case where the symbol is local
+				 * to the module, but in a different section,
+				 * so stub the jump in case it's more than 22
+				 * bits away */
+				val = (val - dot - 8)/4;
+				if (!RELOC_REACHABLE(val, 22)) {
+					/* direct distance too far, create
+					 * stub entry instead */
+					val = get_stub(me, sym->st_value,
+						addend, ELF_STUB_DIRECT,
+						loc0, targetsec);
+				} else {
+					/* Ok, we can reach it directly. */
+					val = sym->st_value;
+					val += addend;
+				}
+			} else {
+				val = sym->st_value;
+				if (strncmp(strtab + sym->st_name, "$$", 2)
 				    == 0)
 					val = get_stub(me, val, addend, ELF_STUB_MILLI,
-						       in_init(me, loc));
+						       loc0, targetsec);
 				else
 					val = get_stub(me, val, addend, ELF_STUB_GOT,
-						       in_init(me, loc));
+						       loc0, targetsec);
 			}
 			DEBUGP("STUB FOR %s loc %lx, val %lx+%lx at %lx\n", 
 			       strtab + sym->st_name, loc, sym->st_value,
 			       addend, val);
-			/* FIXME: local symbols work as long as the
-			 * core and init pieces aren't separated too
-			 * far.  If this is ever broken, you will trip
-			 * the check below.  The way to fix it would
-			 * be to generate local stubs to go between init
-			 * and core */
-			if((Elf64_Sxword)(val - dot - 8) > 0x800000 -1 ||
-			   (Elf64_Sxword)(val - dot - 8) < -0x800000) {
-				printk(KERN_ERR "Module %s, symbol %s is out of range for PCREL22F relocation\n",
-				       me->name, strtab + sym->st_name);
-				return -ENOEXEC;
-			}
 			val = (val - dot - 8)/4;
+			CHECK_RELOC(val, 22);
 			*loc = (*loc & ~0x3ff1ffd) | reassemble_22(val);
 			break;
 		case R_PARISC_DIR64:
@@ -794,12 +850,8 @@ int module_finalize(const Elf_Ehdr *hdr,
 	addr = (u32 *)entry->addr;
 	printk("INSNS: %x %x %x %x\n",
 	       addr[0], addr[1], addr[2], addr[3]);
-	printk("stubs used %ld, stubs max %ld\n"
-	       "init_stubs used %ld, init stubs max %ld\n"
-	       "got entries used %ld, gots max %ld\n"
+	printk("got entries used %ld, gots max %ld\n"
 	       "fdescs used %ld, fdescs max %ld\n",
-	       me->arch.stub_count, me->arch.stub_max,
-	       me->arch.init_stub_count, me->arch.init_stub_max,
 	       me->arch.got_count, me->arch.got_max,
 	       me->arch.fdesc_count, me->arch.fdesc_max);
 #endif
@@ -829,7 +881,10 @@ int module_finalize(const Elf_Ehdr *hdr,
 				me->name, me->arch.got_count, MAX_GOTS);
 		return -EINVAL;
 	}
-	
+
+	kfree(me->arch.section);
+	me->arch.section = NULL;
+
 	/* no symbol table */
 	if(symhdr == NULL)
 		return 0;
--
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From - Thu Nov 08 21:03:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] Document LWS ABI.
Date: Mon, 29 Dec 2008 22:47:38 +0100
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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	linux-parisc@vger.kernel.org
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This is a multi-part message in MIME format.
--------------070908010606010208060901
Content-Type: text/plain; charset=ISO-8859-1
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Carlos, Dave,

This patch hasn't been finally discussed (and merged) yet.
I've attached the last version of the patch from Carlos, that way it get 
archived in Kyle's Patchwork as well :-)

My personal opinion is, that we should try to reduce the number of clobbered 
registers (which is in line with what Dave said below).

Thread is here:
http://marc.info/?t=121612540800004&r=1&w=2

Helge

John David Anglin wrote:
>> The question is "Are you OK with the existing ABI?" :-)
> 
> No.  As I understand it, r2 doesn't need to be clobbered because
> glibc doesn't currently clobber it.  So, using it in the LWS code
> would cause an ABI break.  That's one register back to userspace.
> 
> I want to keep r19 and r27 for userspace so the PIC register doesn't
> have to be saved and restored in the asm (linux-atomic.c is compiled
> as PIC code).  You can have r29.
> 
> That leaves three free registers for the LWS code: r22, r23 and r29.
> The LWS ABI has r1, r20-r26 and r28-r31.  Userspace has two call-clobbered
> registers free across the asm in PIC code, and three in non-PIC code.
> That's enough to efficiently perform the error comparisons.
> 
> The asm would be more efficient if the registers used for lws_mem,
> lws_old and lws_new were not written to.  This occurs only for the
> call in the 32-bit runtime with a 64-bit kernel.  As it stands,
> the lws_mem, lws_old and lws_new arguments get reloaded every time
> around the EAGAIN loop.  This is the crucial code in the compare
> and swap:
> 
>         /* The load and store could fail */
> 1:      ldw     0(%sr3,%r26), %r28
> 	sub,<>  %r28, %r25, %r0
> 2:      stw     %r24, 0(%sr3,%r26)
> 
> The sub,<> instruction uses a 32-bit compare/subtract condition, so
> the clipping of r25 isn't necessary.  Similarly, the stw instruction
> ignores the most significant 32-bits of r24.  The value in r26 needs
> clipping but you have three free registers, and it looks like r1 is
> also free at this point in the code.  You can deposit the least
> significant 32-bits of r26 into a field of zeros in another register
> in one instruction.
> 
> It looks like lws_compare_and_swap64 and lws_compare_and_swap32 become
> more or less functionally identical.  The above would become something
> like:
> 
> #ifdef CONFIG_64BIT
> 	depd,z	%r26,63,32,%r1
> 1:      ldw     0(%sr3,%r1), %r28
>         sub,<>  %r28, %r25, %r0
> 2:      stw     %r24, 0(%sr3,%r1)
> #else
> 1:      ldw     0(%sr3,%r26), %r28
>         sub,<>  %r28, %r25, %r0
> 2:      stw     %r24, 0(%sr3,%r26)
> #endif
> 
> The argument clipping in the current code would be removed.  As a result,
> the branch to lws_compare_and_swap can be eliminated in the 64-bit path.
> 
> It's my impression that the tightness of the loop for the compare/exchange
> operation is important.
> 
> Dave


--------------070908010606010208060901
Content-Type: text/x-patch;
 name="syscall.S.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="syscall.S.diff"

[PARISC] Document LWS ABI and LWS cleanups.

Document the LWS ABI including implementation notes for
userspace, and comment cleanup.

Remove extraneous .align 16 after lws_lock_start.

Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 69b6eeb..3fc73ad 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -365,17 +365,51 @@ tracesys_sigexit:
 
 
 	/*********************************************************
-		Light-weight-syscall code
+		32/64-bit Light-Weight-Syscall ABI
 
-		r20 - lws number
-		r26,r25,r24,r23,r22 - Input registers
-		r28 - Function return register
-		r21 - Error code.
+		* - Indicates a hint for userspace inline asm
+		implementations.
 
-		Scracth: Any of the above that aren't being
-		currently used, including r1. 
+		Syscall number (caller-saves)
+	        - %r20
+	        * In asm clobber.
 
-		Return pointer: r31 (Not usable)
+		Argument registers (caller-saves)
+	        - %r26, %r25, %r24, %r23, %r22
+	        * In asm input.
+
+		Return registers (caller-saves)
+	        - %r28 (return), %r21 (errno)
+	        * In asm output.
+
+		Caller-saves registers
+	        - %r1, %r27, %r29
+	        - %r2 (return pointer)
+	        - %r31 (ble link register)
+	        * In asm clobber.
+
+		Callee-saves registers
+	        - %r3-%r18
+	        - %r30 (stack pointer)
+	        * Not in asm clobber.
+
+		If userspace is 32-bit:
+		Callee-saves registers
+	        - %r19 (32-bit PIC register)
+
+		Differences from 32-bit calling convention:
+		- Syscall number in %r20
+		- Additional argument register %r22 (arg4)
+		- Callee-saves %r19.
+
+		If userspace is 64-bit:
+		Callee-saves registers
+		- %r27 (64-bit PIC register)
+
+		Differences from 64-bit calling convention:
+		- Syscall number in %r20
+		- Additional argument register %r22 (arg4)
+		- Callee-saves %r27.
 
 		Error codes returned by entry path:
 
@@ -473,7 +507,8 @@ lws_compare_and_swap64:
 	b,n	lws_compare_and_swap
 #else
 	/* If we are not a 64-bit kernel, then we don't
-	 * implement having 64-bit input registers
+	 * have 64-bit input registers, and calling
+	 * the 64-bit LWS CAS returns ENOSYS.
 	 */
 	b,n	lws_exit_nosys
 #endif
@@ -635,12 +670,15 @@ END(sys_call_table64)
 	/*
 		All light-weight-syscall atomic operations 
 		will use this set of locks 
+
+		NOTE: The lws_lock_start symbol must be 
+		at least 16-byte aligned for safe use
+		with ldcw.
 	*/
 	.section .data
 	.align	PAGE_SIZE
 ENTRY(lws_lock_start)
 	/* lws locks */
-	.align 16
 	.rept 16
 	/* Keep locks aligned at 16-bytes */
 	.word 1

--------------070908010606010208060901--
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From - Thu Nov 08 21:03:17 2018
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X-Mozilla-Keys:                                                                                 
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From: Kyle McMartin <kyle@infradead.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 1/2] module.c: fix module loading failure of large
	modules (take 2)
Date: Tue, 30 Dec 2008 13:10:32 -0500
Lines: 96
Approved: news@gmane.org
Message-ID: <20081230181032.GB15235@bombadil.infradead.org>
References: <4959346E.7060600@gmx.de> <49593660.2010900@gmx.de> <20081230180724.GA15235@bombadil.infradead.org>
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Cc: Helge Deller <deller@gmx.de>,
	linux-parisc <linux-parisc@vger.kernel.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Randolph Chung <randolph@tausq.org>,
	Linus <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	John David Anglin <dave@hiauly1.hia.nrc.ca>,
	rusty@rustcorp.com.au
To: Kyle McMartin <kyle@infradead.org>
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Ugh, I fail at typing, resending for rusty's benefit.

On Tue, Dec 30, 2008 at 01:07:24PM -0500, Kyle McMartin wrote:
> [Adding rusty to CC]
> 
> On Mon, Dec 29, 2008 at 09:43:12PM +0100, Helge Deller wrote:
> > +unsigned long module_additional_section_size(struct module *mod,
> > +					     unsigned int section);
> > +
> 
> I think this would be more palatable as
> 
> #ifdef HAVE_MODULE_SECTION_STUBS
> unsigned long module_additional_section_size(struct module *mod,
> 	unsigned int section);
> #else
> static inline unsigned long module_additional_section_size(struct module *mod,
> 	unsigned int section)
> {
> 	return 0;
> }
> #endif
> 
> and removing the conditional in kernel/module.c, possibly the symbol
> should be "arch_module_a..." just to make it clear to anyone reading.
> 
> Anyway, it's up to rusty.
> 
> Rusty, we'd like to get this patch in, so I can merge the dependent
> parisc-specific patch.
> 
> regards, Kyle
> 
> >  /* Allocator used for allocating struct module, core sections and init
> >     sections.  Returns NULL on failure. */
> >  void *module_alloc(unsigned long size);
> > diff --git a/init/Kconfig b/init/Kconfig
> > index f763762..5383815 100644
> > --- a/init/Kconfig
> > +++ b/init/Kconfig
> > @@ -908,6 +908,9 @@ config MODULE_SRCVERSION_ALL
> >  	  the version).  With this option, such a "srcversion" field
> >  	  will be created for all modules.  If unsure, say N.
> >  
> > +config HAVE_MODULE_SECTION_STUBS
> > +	bool
> > +
> >  config KMOD
> >  	def_bool y
> >  	help
> > diff --git a/kernel/module.c b/kernel/module.c
> > index 1f4cc00..4b86308 100644
> > --- a/kernel/module.c
> > +++ b/kernel/module.c
> > @@ -1579,10 +1579,15 @@ static int simplify_symbols(Elf_Shdr *sechdrs,
> >  }
> >  
> >  /* Update size with this section: return offset. */
> > -static long get_offset(unsigned int *size, Elf_Shdr *sechdr)
> > +static long get_offset(struct module *mod, unsigned int *size,
> > +		Elf_Shdr *sechdr, unsigned int section)
> >  {
> >  	long ret;
> >  
> > +#ifdef CONFIG_HAVE_MODULE_SECTION_STUBS
> > +	/* allocate some memory for stubs in front of each section */
> > +	*size += module_additional_section_size(mod, section);
> > +#endif
> >  	ret = ALIGN(*size, sechdr->sh_addralign ?: 1);
> >  	*size = ret + sechdr->sh_size;
> >  	return ret;
> > @@ -1622,7 +1627,7 @@ static void layout_sections(struct module *mod,
> >  			    || strncmp(secstrings + s->sh_name,
> >  				       ".init", 5) == 0)
> >  				continue;
> > -			s->sh_entsize = get_offset(&mod->core_size, s);
> > +			s->sh_entsize = get_offset(mod, &mod->core_size, s, i);
> >  			DEBUGP("\t%s\n", secstrings + s->sh_name);
> >  		}
> >  		if (m == 0)
> > @@ -1640,7 +1645,7 @@ static void layout_sections(struct module *mod,
> >  			    || strncmp(secstrings + s->sh_name,
> >  				       ".init", 5) != 0)
> >  				continue;
> > -			s->sh_entsize = (get_offset(&mod->init_size, s)
> > +			s->sh_entsize = (get_offset(mod, &mod->init_size, s, i)
> >  					 | INIT_OFFSET_MASK);
> >  			DEBUGP("\t%s\n", secstrings + s->sh_name);
> >  		}
> > 
> 
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From - Thu Nov 08 21:03:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 1/2] module.c: fix module loading failure of large	modules
 (take 2)
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Cc: linux-parisc <linux-parisc@vger.kernel.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Randolph Chung <randolph@tausq.org>,
	Linus <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	John David Anglin <dave@hiauly1.hia.nrc.ca>,
	rusty@rustcorp.com.au
To: Kyle McMartin <kyle@infradead.org>
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Kyle McMartin wrote:
> Ugh, I fail at typing, resending for rusty's benefit.
> 
> On Tue, Dec 30, 2008 at 01:07:24PM -0500, Kyle McMartin wrote:
>> [Adding rusty to CC]
>>
>> On Mon, Dec 29, 2008 at 09:43:12PM +0100, Helge Deller wrote:
>>> +unsigned long module_additional_section_size(struct module *mod,
>>> +					     unsigned int section);
>>> +
>> I think this would be more palatable as
>>
>> #ifdef HAVE_MODULE_SECTION_STUBS
>> unsigned long module_additional_section_size(struct module *mod,
>> 	unsigned int section);
>> #else
>> static inline unsigned long module_additional_section_size(struct module *mod,
>> 	unsigned int section)
>> {
>> 	return 0;
>> }
>> #endif
>>
>> and removing the conditional in kernel/module.c, possibly the symbol
>> should be "arch_module_a..." just to make it clear to anyone reading.
>>
>> Anyway, it's up to rusty.
>>
>> Rusty, we'd like to get this patch in, so I can merge the dependent
>> parisc-specific patch.

Rusty, I think I've a cleaner patch for that and will send it soon...

Helge
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH 1/2] module.c: fix module loading failure of large modules
 (take 3)
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Cc: linux-parisc <linux-parisc@vger.kernel.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Randolph Chung <randolph@tausq.org>,
	Linus <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	John David Anglin <dave@hiauly1.hia.nrc.ca>
To: Kyle McMartin <kyle@infradead.org>, rusty@rustcorp.com.au
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Helge Deller wrote:
> Kyle McMartin wrote:
>>> Anyway, it's up to rusty.
>>>
>>> Rusty, we'd like to get this patch in, so I can merge the dependent
>>> parisc-specific patch.

Rusty,

While my initial patch (http://lkml.org/lkml/2008/12/29/274) added a
new CONFIG option and an optional callback function, this version instead
reuses the ElfHdr.sh_entsize field to tell the layout function how many
bytes to reserve.
It seems that only the IA64 module loader is affected by that change,
so the trivial patch for IA64 is below as well.
Other architectures use the sh_entsize field as well, but only for
bootloaders (x86, mips) or for special purpose loaders (powerpc cell),
but not for kernel modules. So the patch below should be pretty safe.

Personally I prefer this patch, but if you think my initial patch is
better, I'd be happy as well.


 arch/ia64/kernel/module.c |    4 +++-
 kernel/module.c           |   37 ++++++++++++++++++++-----------------
 2 files changed, 23 insertions(+), 18 deletions(-)


[PATCH 1/2] module.c: fix module loading failure of large modules (take 3)

When creating the final layout of a kernel module in memory, allow the
module loader to reserve some additional memory in front of a given section.
The amount of to-be allocated memory is returned by the architecture's
module_frob_arch_sections() function in the sechdrs.sh_entsize field.
By default this field is initialized by the module loader to zero.
Additional memory in front of code sections is currently only needed 
for the parisc port which needs to put the stub entries there to fulfill
the 17/22bit PCREL relocations with large kernel modules like xfs.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index aaa7d90..5bd35f1 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -53,6 +53,8 @@
 
 #define MAX_LTOFF	((uint64_t) (1 << 22))	/* max. allowable linkage-table offset */
 
+#define INIT_LAYOUT_MASK (1UL << (BITS_PER_LONG-1))
+
 /* Define some relocation helper macros/types: */
 
 #define FORMAT_SHIFT	0
@@ -804,7 +806,7 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind
 
 	target_sec = sechdrs + sechdrs[relsec].sh_info;
 
-	if (target_sec->sh_entsize == ~0UL)
+	if (!(target_sec->sh_entsize & INIT_LAYOUT_MASK))
 		/*
 		 * If target section wasn't allocated, we don't need to relocate it.
 		 * Happens, e.g., for debug sections.
diff --git a/kernel/module.c b/kernel/module.c
index 1f4cc00..a09174d 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -62,8 +62,9 @@
 #define ARCH_SHF_SMALL 0
 #endif
 
-/* If this is set, the section belongs in the init part of the module */
-#define INIT_OFFSET_MASK (1UL << (BITS_PER_LONG-1))
+#define INIT_LAYOUT_MASK (1UL << (BITS_PER_LONG-1)) /* section-layout done  */
+#define INIT_OFFSET_MASK (1UL << (BITS_PER_LONG-2)) /* part of init section */
+#define INIT_STRIP_MASK  (INIT_OFFSET_MASK | INIT_LAYOUT_MASK)
 
 /* List of modules, protected by module_mutex or preempt_disable
  * (delete uses stop_machine/add uses RCU list operations). */
@@ -1583,6 +1584,8 @@ static long get_offset(unsigned int *size, Elf_Shdr *sechdr)
 {
 	long ret;
 
+	/* architectures can request sh_entsize bytes in front of a section */
+	*size += (sechdr->sh_entsize & ~INIT_STRIP_MASK);
 	ret = ALIGN(*size, sechdr->sh_addralign ?: 1);
 	*size = ret + sechdr->sh_size;
 	return ret;
@@ -1590,8 +1593,8 @@ static long get_offset(unsigned int *size, Elf_Shdr *sechdr)
 
 /* Lay out the SHF_ALLOC sections in a way not dissimilar to how ld
    might -- code, read-only data, read-write data, small data.  Tally
-   sizes, and place the offsets into sh_entsize fields: high bit means it
-   belongs in init. */
+   sizes, and place the offsets into sh_entsize fields: INIT_OFFSET_MASK
+   indicates that it belongs in init. */
 static void layout_sections(struct module *mod,
 			    const Elf_Ehdr *hdr,
 			    Elf_Shdr *sechdrs,
@@ -1608,9 +1611,6 @@ static void layout_sections(struct module *mod,
 	};
 	unsigned int m, i;
 
-	for (i = 0; i < hdr->e_shnum; i++)
-		sechdrs[i].sh_entsize = ~0UL;
-
 	DEBUGP("Core section allocation order:\n");
 	for (m = 0; m < ARRAY_SIZE(masks); ++m) {
 		for (i = 0; i < hdr->e_shnum; ++i) {
@@ -1618,11 +1618,12 @@ static void layout_sections(struct module *mod,
 
 			if ((s->sh_flags & masks[m][0]) != masks[m][0]
 			    || (s->sh_flags & masks[m][1])
-			    || s->sh_entsize != ~0UL
+			    || (s->sh_entsize & INIT_LAYOUT_MASK)
 			    || strncmp(secstrings + s->sh_name,
 				       ".init", 5) == 0)
 				continue;
-			s->sh_entsize = get_offset(&mod->core_size, s);
+			s->sh_entsize = get_offset(&mod->core_size, s)
+					| INIT_LAYOUT_MASK;
 			DEBUGP("\t%s\n", secstrings + s->sh_name);
 		}
 		if (m == 0)
@@ -1636,12 +1637,12 @@ static void layout_sections(struct module *mod,
 
 			if ((s->sh_flags & masks[m][0]) != masks[m][0]
 			    || (s->sh_flags & masks[m][1])
-			    || s->sh_entsize != ~0UL
+			    || (s->sh_entsize & INIT_LAYOUT_MASK)
 			    || strncmp(secstrings + s->sh_name,
 				       ".init", 5) != 0)
 				continue;
 			s->sh_entsize = (get_offset(&mod->init_size, s)
-					 | INIT_OFFSET_MASK);
+					 | INIT_OFFSET_MASK | INIT_LAYOUT_MASK);
 			DEBUGP("\t%s\n", secstrings + s->sh_name);
 		}
 		if (m == 0)
@@ -1986,7 +1987,11 @@ static noinline struct module *load_module(void __user *umod,
 
 	mod->state = MODULE_STATE_COMING;
 
-	/* Allow arches to frob section contents and sizes.  */
+	/* Allow arches to frob section contents, sh_entsize will tell the
+	 * the section layouter how much space to allocate in front of each
+	 * section */
+	for (i = 0; i < hdr->e_shnum; i++)
+		sechdrs[i].sh_entsize = 0UL;
 	err = module_frob_arch_sections(hdr, sechdrs, secstrings, mod);
 	if (err < 0)
 		goto free_mod;
@@ -2034,11 +2039,9 @@ static noinline struct module *load_module(void __user *umod,
 		if (!(sechdrs[i].sh_flags & SHF_ALLOC))
 			continue;
 
-		if (sechdrs[i].sh_entsize & INIT_OFFSET_MASK)
-			dest = mod->module_init
-				+ (sechdrs[i].sh_entsize & ~INIT_OFFSET_MASK);
-		else
-			dest = mod->module_core + sechdrs[i].sh_entsize;
+		dest = ((sechdrs[i].sh_entsize & INIT_OFFSET_MASK) ?
+			 mod->module_init : mod->module_core)
+			+ (sechdrs[i].sh_entsize & ~INIT_STRIP_MASK);
 
 		if (sechdrs[i].sh_type != SHT_NOBITS)
 			memcpy(dest, (void *)sechdrs[i].sh_addr,
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 2/2] parisc: fix module loading failure of large modules
 (take 3)
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To: linux-parisc <linux-parisc@vger.kernel.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Randolph Chung <randolph@tausq.org>,
	Linus <to
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[PATCH 2/2] parisc: fix module loading failure of large modules (take 3)

On 32bit (and sometimes 64bit) and with big kernel modules like xfs or
ipv6 the relocation types R_PARISC_PCREL17F and R_PARISC_PCREL22F may
fail to reach their PLT stub if we only create one big stub array for
all sections at the beginning of the core or init section.

With this patch we now instead add individual PLT stub entries
directly in front of the code sections where the stubs are actually
called. This reduces the distance between the PCREL location and the
stub entry so that the relocations can be fulfilled.

The kernel module loader will allocate as much memory in front
of the code code segment as we return in the sechdrs.sh_entsize field.

Tested with 32- and 64bit kernels.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/module.h b/arch/parisc/include/asm/module.h
index c2cb49e..1f41234 100644
--- a/arch/parisc/include/asm/module.h
+++ b/arch/parisc/include/asm/module.h
@@ -23,8 +23,10 @@ struct mod_arch_specific
 {
 	unsigned long got_offset, got_count, got_max;
 	unsigned long fdesc_offset, fdesc_count, fdesc_max;
-	unsigned long stub_offset, stub_count, stub_max;
-	unsigned long init_stub_offset, init_stub_count, init_stub_max;
+	struct {
+		unsigned long stub_offset;
+		unsigned int stub_entries;
+		} *section;
 	int unwind_section;
 	struct unwind_table *unwind;
 };
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 44138c3..aaa0879 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -6,6 +6,7 @@
  *
  *    Linux/PA-RISC Project (http://www.parisc-linux.org/)
  *    Copyright (C) 2003 Randolph Chung <tausq at debian . org>
+ *    Copyright (C) 2008 Helge Deller <deller@gmx.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -24,6 +25,20 @@
  *
  *
  *    Notes:
+ *    - PLT stub handling
+ *      On 32bit (and sometimes 64bit) and with big kernel modules like xfs or
+ *      ipv6 the relocation types R_PARISC_PCREL17F and R_PARISC_PCREL22F may
+ *      fail to reach its PLT stub if we only create one big stub array for
+ *      all sections at the beginning of the core or init section.
+ *      Instead we now insert individual PLT stub entries directly in front of
+ *      of the code sections where the stubs are actually called.
+ *      This reduces the distance between the PCREL location and the stub entry
+ *      so that the relocations can be fulfilled.
+ *      In module_frob_arch_sections() we calculate how many bytes we need for
+ *      the stubs of each section and return this in the sh_entsize field. The
+ *      kernel module layouter will then later reserve this amount of bytes
+ *      in front of the code sections for us.
+ *
  *    - SEGREL32 handling
  *      We are not doing SEGREL32 handling correctly. According to the ABI, we
  *      should do a value offset, like this:
@@ -58,9 +73,13 @@
 #define DEBUGP(fmt...)
 #endif
 
+#define RELOC_REACHABLE(val, bits) \
+	(( ( !((val) & (1<<((bits)-1))) && ((val)>>(bits)) != 0 )  ||	\
+	     ( ((val) & (1<<((bits)-1))) && ((val)>>(bits)) != (((__typeof__(val))(~0))>>((bits)+2)))) ? \
+	0 : 1)
+
 #define CHECK_RELOC(val, bits) \
-	if ( ( !((val) & (1<<((bits)-1))) && ((val)>>(bits)) != 0 )  ||	\
-	     ( ((val) & (1<<((bits)-1))) && ((val)>>(bits)) != (((__typeof__(val))(~0))>>((bits)+2)))) { \
+	if (!RELOC_REACHABLE(val, bits)) { \
 		printk(KERN_ERR "module %s relocation of symbol %s is out of range (0x%lx in %d bits)\n", \
 		me->name, strtab + sym->st_name, (unsigned long)val, bits); \
 		return -ENOEXEC;			\
@@ -92,13 +111,6 @@ static inline int in_local(struct module *me, void *loc)
 	return in_init(me, loc) || in_core(me, loc);
 }
 
-static inline int in_local_section(struct module *me, void *loc, void *dot)
-{
-	return (in_init(me, loc) && in_init(me, dot)) ||
-		(in_core(me, loc) && in_core(me, dot));
-}
-
-
 #ifndef CONFIG_64BIT
 struct got_entry {
 	Elf32_Addr addr;
@@ -258,6 +270,9 @@ static inline unsigned long count_stubs(const Elf_Rela *rela, unsigned long n)
 /* Free memory returned from module_alloc */
 void module_free(struct module *mod, void *module_region)
 {
+	kfree(mod->arch.section);
+	mod->arch.section = NULL;
+
 	vfree(module_region);
 	/* FIXME: If module_region == mod->init_region, trim exception
            table entries. */
@@ -269,12 +284,18 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 			      CONST char *secstrings,
 			      struct module *me)
 {
-	unsigned long gots = 0, fdescs = 0, stubs = 0, init_stubs = 0;
+	unsigned long gots = 0, fdescs = 0, len;
 	unsigned int i;
 
+	len = hdr->e_shnum * sizeof(me->arch.section[0]);
+	me->arch.section = kzalloc(len, GFP_KERNEL);
+	if (!me->arch.section)
+		return -ENOMEM;
+
 	for (i = 1; i < hdr->e_shnum; i++) {
-		const Elf_Rela *rels = (void *)hdr + sechdrs[i].sh_offset;
+		const Elf_Rela *rels = (void *)sechdrs[i].sh_addr;
 		unsigned long nrels = sechdrs[i].sh_size / sizeof(*rels);
+		unsigned int count, s;
 
 		if (strncmp(secstrings + sechdrs[i].sh_name,
 			    ".PARISC.unwind", 14) == 0)
@@ -290,11 +311,29 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 		 */
 		gots += count_gots(rels, nrels);
 		fdescs += count_fdescs(rels, nrels);
-		if(strncmp(secstrings + sechdrs[i].sh_name,
-			   ".rela.init", 10) == 0)
-			init_stubs += count_stubs(rels, nrels);
-		else
-			stubs += count_stubs(rels, nrels);
+
+		/* XXX: By sorting the relocs and finding duplicate entries
+		 *  we could reduce the number of necessary stubs and save
+		 *  some memory. */
+		count = count_stubs(rels, nrels);
+		if (!count)
+			continue;
+
+		/* so we need relocation stubs. reserve necessary memory. */
+		/* sh_info gives the section for which we need to add stubs. */
+		s = sechdrs[i].sh_info;
+
+		/* each code section should only have one relocation section */
+		WARN_ON(me->arch.section[s].stub_entries);
+
+		/* store number of stubs we need for this section */
+		me->arch.section[s].stub_entries += count;
+
+		/* tell section layouter how much space we need for all stubs
+		 * of this section (including one additional for correct
+		 * alignment of the stubs) */
+		sechdrs[s].sh_entsize = sizeof(struct stub_entry) *
+			(me->arch.section[s].stub_entries + 1);
 	}
 
 	/* align things a bit */
@@ -306,18 +345,8 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 	me->arch.fdesc_offset = me->core_size;
 	me->core_size += fdescs * sizeof(Elf_Fdesc);
 
-	me->core_size = ALIGN(me->core_size, 16);
-	me->arch.stub_offset = me->core_size;
-	me->core_size += stubs * sizeof(struct stub_entry);
-
-	me->init_size = ALIGN(me->init_size, 16);
-	me->arch.init_stub_offset = me->init_size;
-	me->init_size += init_stubs * sizeof(struct stub_entry);
-
 	me->arch.got_max = gots;
 	me->arch.fdesc_max = fdescs;
-	me->arch.stub_max = stubs;
-	me->arch.init_stub_max = init_stubs;
 
 	return 0;
 }
@@ -380,23 +409,27 @@ enum elf_stub_type {
 };
 
 static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
-	enum elf_stub_type stub_type, int init_section)
+	enum elf_stub_type stub_type, Elf_Addr loc0, unsigned int targetsec)
 {
-	unsigned long i;
 	struct stub_entry *stub;
 
-	if(init_section) {
-		i = me->arch.init_stub_count++;
-		BUG_ON(me->arch.init_stub_count > me->arch.init_stub_max);
-		stub = me->module_init + me->arch.init_stub_offset + 
-			i * sizeof(struct stub_entry);
-	} else {
-		i = me->arch.stub_count++;
-		BUG_ON(me->arch.stub_count > me->arch.stub_max);
-		stub = me->module_core + me->arch.stub_offset + 
-			i * sizeof(struct stub_entry);
+	/* initialize stub_offset to point in front of the section */
+	if (!me->arch.section[targetsec].stub_offset) {
+		loc0 -= (me->arch.section[targetsec].stub_entries + 1) *
+				sizeof(struct stub_entry);
+		/* get correct alignment for the stubs */
+		loc0 = ALIGN(loc0, sizeof(struct stub_entry));
+		me->arch.section[targetsec].stub_offset = loc0;
 	}
 
+	/* get address of stub entry */
+	stub = (void *) me->arch.section[targetsec].stub_offset;
+	me->arch.section[targetsec].stub_offset += sizeof(struct stub_entry);
+
+	/* do not write outside available stub area */
+	BUG_ON(0 == me->arch.section[targetsec].stub_entries--);
+
+
 #ifndef CONFIG_64BIT
 /* for 32-bit the stub looks like this:
  * 	ldil L'XXX,%r1
@@ -489,15 +522,19 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 	Elf32_Addr val;
 	Elf32_Sword addend;
 	Elf32_Addr dot;
+	Elf_Addr loc0;
+	unsigned int targetsec = sechdrs[relsec].sh_info;
 	//unsigned long dp = (unsigned long)$global$;
 	register unsigned long dp asm ("r27");
 
 	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
+	       targetsec);
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
 		/* This is where to make the change */
-		loc = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+		loc = (void *)sechdrs[targetsec].sh_addr
 		      + rel[i].r_offset;
+		/* This is the start of the target section */
+		loc0 = sechdrs[targetsec].sh_addr;
 		/* This is the symbol it is referring to */
 		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
 			+ ELF32_R_SYM(rel[i].r_info);
@@ -569,19 +606,32 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			break;
 		case R_PARISC_PCREL17F:
 			/* 17-bit PC relative address */
-			val = get_stub(me, val, addend, ELF_STUB_GOT, in_init(me, loc));
+			/* calculate direct call offset */
+			val += addend;
 			val = (val - dot - 8)/4;
-			CHECK_RELOC(val, 17)
+			if (!RELOC_REACHABLE(val, 17)) {
+				/* direct distance too far, create
+				 * stub entry instead */
+				val = get_stub(me, sym->st_value, addend,
+					ELF_STUB_DIRECT, loc0, targetsec);
+				val = (val - dot - 8)/4;
+				CHECK_RELOC(val, 17);
+			}
 			*loc = (*loc & ~0x1f1ffd) | reassemble_17(val);
 			break;
 		case R_PARISC_PCREL22F:
 			/* 22-bit PC relative address; only defined for pa20 */
-			val = get_stub(me, val, addend, ELF_STUB_GOT, in_init(me, loc));
-			DEBUGP("STUB FOR %s loc %lx+%lx at %lx\n", 
-			       strtab + sym->st_name, (unsigned long)loc, addend, 
-			       val)
+			/* calculate direct call offset */
+			val += addend;
 			val = (val - dot - 8)/4;
-			CHECK_RELOC(val, 22);
+			if (!RELOC_REACHABLE(val, 22)) {
+				/* direct distance too far, create
+				 * stub entry instead */
+				val = get_stub(me, sym->st_value, addend,
+					ELF_STUB_DIRECT, loc0, targetsec);
+				val = (val - dot - 8)/4;
+				CHECK_RELOC(val, 22);
+			}
 			*loc = (*loc & ~0x3ff1ffd) | reassemble_22(val);
 			break;
 
@@ -610,13 +660,17 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 	Elf64_Addr val;
 	Elf64_Sxword addend;
 	Elf64_Addr dot;
+	Elf_Addr loc0;
+	unsigned int targetsec = sechdrs[relsec].sh_info;
 
 	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
+	       targetsec);
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
 		/* This is where to make the change */
-		loc = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+		loc = (void *)sechdrs[targetsec].sh_addr
 		      + rel[i].r_offset;
+		/* This is the start of the target section */
+		loc0 = sechdrs[targetsec].sh_addr;
 		/* This is the symbol it is referring to */
 		sym = (Elf64_Sym *)sechdrs[symindex].sh_addr
 			+ ELF64_R_SYM(rel[i].r_info);
@@ -672,42 +726,40 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			DEBUGP("PCREL22F Symbol %s loc %p val %lx\n",
 			       strtab + sym->st_name,
 			       loc, val);
+			val += addend;
 			/* can we reach it locally? */
-			if(!in_local_section(me, (void *)val, (void *)dot)) {
-
-				if (in_local(me, (void *)val))
-					/* this is the case where the
-					 * symbol is local to the
-					 * module, but in a different
-					 * section, so stub the jump
-					 * in case it's more than 22
-					 * bits away */
-					val = get_stub(me, val, addend, ELF_STUB_DIRECT,
-						       in_init(me, loc));
-				else if (strncmp(strtab + sym->st_name, "$$", 2)
+			if (in_local(me, (void *)val)) {
+				/* this is the case where the symbol is local
+				 * to the module, but in a different section,
+				 * so stub the jump in case it's more than 22
+				 * bits away */
+				val = (val - dot - 8)/4;
+				if (!RELOC_REACHABLE(val, 22)) {
+					/* direct distance too far, create
+					 * stub entry instead */
+					val = get_stub(me, sym->st_value,
+						addend, ELF_STUB_DIRECT,
+						loc0, targetsec);
+				} else {
+					/* Ok, we can reach it directly. */
+					val = sym->st_value;
+					val += addend;
+				}
+			} else {
+				val = sym->st_value;
+				if (strncmp(strtab + sym->st_name, "$$", 2)
 				    == 0)
 					val = get_stub(me, val, addend, ELF_STUB_MILLI,
-						       in_init(me, loc));
+						       loc0, targetsec);
 				else
 					val = get_stub(me, val, addend, ELF_STUB_GOT,
-						       in_init(me, loc));
+						       loc0, targetsec);
 			}
 			DEBUGP("STUB FOR %s loc %lx, val %lx+%lx at %lx\n", 
 			       strtab + sym->st_name, loc, sym->st_value,
 			       addend, val);
-			/* FIXME: local symbols work as long as the
-			 * core and init pieces aren't separated too
-			 * far.  If this is ever broken, you will trip
-			 * the check below.  The way to fix it would
-			 * be to generate local stubs to go between init
-			 * and core */
-			if((Elf64_Sxword)(val - dot - 8) > 0x800000 -1 ||
-			   (Elf64_Sxword)(val - dot - 8) < -0x800000) {
-				printk(KERN_ERR "Module %s, symbol %s is out of range for PCREL22F relocation\n",
-				       me->name, strtab + sym->st_name);
-				return -ENOEXEC;
-			}
 			val = (val - dot - 8)/4;
+			CHECK_RELOC(val, 22);
 			*loc = (*loc & ~0x3ff1ffd) | reassemble_22(val);
 			break;
 		case R_PARISC_DIR64:
@@ -794,12 +846,8 @@ int module_finalize(const Elf_Ehdr *hdr,
 	addr = (u32 *)entry->addr;
 	printk("INSNS: %x %x %x %x\n",
 	       addr[0], addr[1], addr[2], addr[3]);
-	printk("stubs used %ld, stubs max %ld\n"
-	       "init_stubs used %ld, init stubs max %ld\n"
-	       "got entries used %ld, gots max %ld\n"
+	printk("got entries used %ld, gots max %ld\n"
 	       "fdescs used %ld, fdescs max %ld\n",
-	       me->arch.stub_count, me->arch.stub_max,
-	       me->arch.init_stub_count, me->arch.init_stub_max,
 	       me->arch.got_count, me->arch.got_max,
 	       me->arch.fdesc_count, me->arch.fdesc_max);
 #endif
@@ -829,7 +877,10 @@ int module_finalize(const Elf_Ehdr *hdr,
 				me->name, me->arch.got_count, MAX_GOTS);
 		return -EINVAL;
 	}
-	
+
+	kfree(me->arch.section);
+	me->arch.section = NULL;
+
 	/* no symbol table */
 	if(symhdr == NULL)
 		return 0;


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trivial fixes:
- use KERN_WARNING for printk()
- use BUG_ON() instead of "if (xx) BUG();"

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 23ef950..3ee6b33 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -421,5 +422,5 @@ void __init init_IRQ(void)
 
 void ack_bad_irq(unsigned int irq)
 {
-	printk("unexpected IRQ %d\n", irq);
+	printk(KERN_WARNING "unexpected IRQ %d\n", irq);
 }
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index d47f397..148667e 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -239,10 +240,7 @@ send_IPI_mask(cpumask_t mask, enum ipi_message_type op)
 static inline void
 send_IPI_single(int dest_cpu, enum ipi_message_type op)
 {
-	if (dest_cpu == NO_PROC_ID) {
-		BUG();
-		return;
-	}
+	BUG_ON(dest_cpu == NO_PROC_ID);
 
 	ipi_send(dest_cpu, op);
 }
@@ -324,8 +322,7 @@ smp_cpu_init(int cpunum)
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);
 	current->active_mm = &init_mm;
-	if(current->mm)
-		BUG();
+	BUG_ON(current->mm);
 	enter_lazy_tlb(&init_mm, current);
 
 	init_IRQ();   /* make sure no IRQs are enabled or pending */

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Subject: [PATCH] parisc: Replace NR_CPUS in parisc code
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parisc: Replace most arrays sized by NR_CPUS with percpu variables.

Signed-off-by: Helge Deller <deller@gmx.de>

 include/asm/processor.h |    4 +-
 kernel/irq.c            |    9 +++---
 kernel/perf.c           |    4 +-
 kernel/processor.c      |   68 ++++++++++++++++++++++++------------------------
 kernel/setup.c          |    6 ++--
 kernel/smp.c            |   24 +++++++++-------
 kernel/time.c           |    4 +-
 kernel/topology.c       |    4 +-
 8 files changed, 64 insertions(+), 59 deletions(-)

diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 3c9d348..9d64df8 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -17,6 +17,7 @@
 #include <asm/ptrace.h>
 #include <asm/types.h>
 #include <asm/system.h>
+#include <asm/percpu.h>
 #endif /* __ASSEMBLY__ */
 
 #define KERNEL_STACK_SIZE 	(4*PAGE_SIZE)
@@ -109,8 +110,7 @@ struct cpuinfo_parisc {
 };
 
 extern struct system_cpuinfo_parisc boot_cpu_data;
-extern struct cpuinfo_parisc cpu_data[NR_CPUS];
-#define current_cpu_data cpu_data[smp_processor_id()]
+DECLARE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
 #define CPU_HVERSION ((boot_cpu_data.hversion >> 4) & 0x0FFF)
 
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 23ef950..3ee6b33 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -298,7 +298,7 @@ unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 	irq_desc[irq].affinity = cpumask_of_cpu(cpu);
 #endif
 
-	return cpu_data[cpu].txn_addr;
+	return per_cpu(cpu_data, cpu).txn_addr;
 }
 
 
@@ -309,8 +309,9 @@ unsigned long txn_alloc_addr(unsigned int virt_irq)
 	next_cpu++; /* assign to "next" CPU we want this bugger on */
 
 	/* validate entry */
-	while ((next_cpu < NR_CPUS) && (!cpu_data[next_cpu].txn_addr || 
-		!cpu_online(next_cpu)))
+	while ((next_cpu < NR_CPUS) &&
+		(!per_cpu(cpu_data, next_cpu).txn_addr ||
+		 !cpu_online(next_cpu)))
 		next_cpu++;
 
 	if (next_cpu >= NR_CPUS) 
@@ -359,7 +360,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 		printk(KERN_DEBUG "redirecting irq %d from CPU %d to %d\n",
 		       irq, smp_processor_id(), cpu);
 		gsc_writel(irq + CPU_IRQ_BASE,
-			   cpu_data[cpu].hpa);
+			   per_cpu(cpu_data, cpu).hpa);
 		goto set_out;
 	}
 #endif
diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index f696f57..75099ef 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -541,9 +541,9 @@ static int __init perf_init(void)
 	spin_lock_init(&perf_lock);
 
 	/* TODO: this only lets us access the first cpu.. what to do for SMP? */
-	cpu_device = cpu_data[0].dev;
+	cpu_device = per_cpu(cpu_data, 0).dev;
 	printk("Performance monitoring counters enabled for %s\n",
-		cpu_data[0].dev->name);
+		per_cpu(cpu_data, 0).dev->name);
 
 	return 0;
 }
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 370086f..ecb6093 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -3,7 +3,7 @@
  *    Initial setup-routines for HP 9000 based hardware.
  *
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
- *    Modifications for PA-RISC (C) 1999 Helge Deller <deller@gmx.de>
+ *    Modifications for PA-RISC (C) 1999-2008 Helge Deller <deller@gmx.de>
  *    Modifications copyright 1999 SuSE GmbH (Philipp Rumpf)
  *    Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net>
  *    Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org>
@@ -46,7 +46,7 @@
 struct system_cpuinfo_parisc boot_cpu_data __read_mostly;
 EXPORT_SYMBOL(boot_cpu_data);
 
-struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly;
+DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
 extern int update_cr16_clocksource(void);	/* from time.c */
 
@@ -69,6 +69,23 @@ extern int update_cr16_clocksource(void);	/* from time.c */
 */
 
 /**
+ * init_cpu_profiler - enable/setup per cpu profiling hooks.
+ * @cpunum: The processor instance.
+ *
+ * FIXME: doesn't do much yet...
+ */
+static void __cpuinit
+init_percpu_prof(unsigned long cpunum)
+{
+	struct cpuinfo_parisc *p;
+
+	p = &per_cpu(cpu_data, cpunum);
+	p->prof_counter = 1;
+	p->prof_multiplier = 1;
+}
+
+
+/**
  * processor_probe - Determine if processor driver should claim this device.
  * @dev: The device which has been found.
  *
@@ -147,7 +164,7 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 	}
 #endif
 
-	p = &cpu_data[cpuid];
+	p = &per_cpu(cpu_data, cpuid);
 	boot_cpu_data.cpu_count++;
 
 	/* initialize counters - CPU 0 gets it_value set in time_init() */
@@ -162,12 +179,9 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 #ifdef CONFIG_SMP
 	/*
 	** FIXME: review if any other initialization is clobbered
-	**	for boot_cpu by the above memset().
+	**	  for boot_cpu by the above memset().
 	*/
-
-	/* stolen from init_percpu_prof() */
-	cpu_data[cpuid].prof_counter = 1;
-	cpu_data[cpuid].prof_multiplier = 1;
+	init_percpu_prof(cpuid);
 #endif
 
 	/*
@@ -261,19 +275,6 @@ void __init collect_boot_cpu_data(void)
 }
 
 
-/**
- * init_cpu_profiler - enable/setup per cpu profiling hooks.
- * @cpunum: The processor instance.
- *
- * FIXME: doesn't do much yet...
- */
-static inline void __init
-init_percpu_prof(int cpunum)
-{
-	cpu_data[cpunum].prof_counter = 1;
-	cpu_data[cpunum].prof_multiplier = 1;
-}
-
 
 /**
  * init_per_cpu - Handle individual processor initializations.
@@ -293,7 +294,7 @@ init_percpu_prof(int cpunum)
  *
  * o Enable CPU profiling hooks.
  */
-int __init init_per_cpu(int cpunum)
+int __cpuinit init_per_cpu(int cpunum)
 {
 	int ret;
 	struct pdc_coproc_cfg coproc_cfg;
@@ -307,8 +308,8 @@ int __init init_per_cpu(int cpunum)
 		/* FWIW, FP rev/model is a more accurate way to determine
 		** CPU type. CPU rev/model has some ambiguous cases.
 		*/
-		cpu_data[cpunum].fp_rev = coproc_cfg.revision;
-		cpu_data[cpunum].fp_model = coproc_cfg.model;
+		per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
+		per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
 
 		printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
 			cpunum, coproc_cfg.revision, coproc_cfg.model);
@@ -344,16 +345,17 @@ int __init init_per_cpu(int cpunum)
 int
 show_cpuinfo (struct seq_file *m, void *v)
 {
-	int	n;
+	unsigned long cpu;
 
-	for(n=0; n<boot_cpu_data.cpu_count; n++) {
+	for_each_online_cpu(cpu) {
+		const struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
 #ifdef CONFIG_SMP
-		if (0 == cpu_data[n].hpa)
+		if (0 == cpuinfo->hpa)
 			continue;
 #endif
-		seq_printf(m, "processor\t: %d\n"
+		seq_printf(m, "processor\t: %lu\n"
 				"cpu family\t: PA-RISC %s\n",
-				 n, boot_cpu_data.family_name);
+				 cpu, boot_cpu_data.family_name);
 
 		seq_printf(m, "cpu\t\t: %s\n",  boot_cpu_data.cpu_name );
 
@@ -365,8 +367,8 @@ show_cpuinfo (struct seq_file *m, void *v)
 		seq_printf(m, "model\t\t: %s\n"
 				"model name\t: %s\n",
 				 boot_cpu_data.pdc.sys_model_name,
-				 cpu_data[n].dev ? 
-				 cpu_data[n].dev->name : "Unknown" );
+				 cpuinfo->dev ?
+				 cpuinfo->dev->name : "Unknown");
 
 		seq_printf(m, "hversion\t: 0x%08x\n"
 			        "sversion\t: 0x%08x\n",
@@ -377,8 +379,8 @@ show_cpuinfo (struct seq_file *m, void *v)
 		show_cache_info(m);
 
 		seq_printf(m, "bogomips\t: %lu.%02lu\n",
-			     cpu_data[n].loops_per_jiffy / (500000 / HZ),
-			     (cpu_data[n].loops_per_jiffy / (5000 / HZ)) % 100);
+			     cpuinfo->loops_per_jiffy / (500000 / HZ),
+			     (cpuinfo->loops_per_jiffy / (5000 / HZ)) % 100);
 
 		seq_printf(m, "software id\t: %ld\n\n",
 				boot_cpu_data.pdc.model.sw_id);
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 7d27853..5bfd9c7 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -321,7 +321,7 @@ static int __init parisc_init(void)
 	
 	processor_init();
 	printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
-			boot_cpu_data.cpu_count,
+			num_present_cpus(),
 			boot_cpu_data.cpu_name,
 			boot_cpu_data.cpu_hz / 1000000,
 			boot_cpu_data.cpu_hz % 1000000	);
@@ -387,8 +387,8 @@ void start_parisc(void)
 	if (ret >= 0 && coproc_cfg.ccr_functional) {
 		mtctl(coproc_cfg.ccr_functional, 10);
 
-		cpu_data[cpunum].fp_rev = coproc_cfg.revision;
-		cpu_data[cpunum].fp_model = coproc_cfg.model;
+		per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
+		per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
 
 		asm volatile ("fstd	%fr0,8(%sp)");
 	} else {
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index d47f397..148667e 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -56,16 +56,17 @@ static int smp_debug_lvl = 0;
 		if (lvl >= smp_debug_lvl)	\
 			printk(printargs);
 #else
-#define smp_debug(lvl, ...)
+#define smp_debug(lvl, ...)	do { } while(0)
 #endif /* DEBUG_SMP */
 
 DEFINE_SPINLOCK(smp_lock);
 
 volatile struct task_struct *smp_init_current_idle_task;
 
-static volatile int cpu_now_booting __read_mostly = 0;	/* track which CPU is booting */
+/* track which CPU is booting */
+static volatile int cpu_now_booting __cpuinitdata;
 
-static int parisc_max_cpus __read_mostly = 1;
+static int parisc_max_cpus __cpuinitdata = 1;
 
 /* online cpus are ones that we've managed to bring up completely
  * possible cpus are all valid cpu 
@@ -138,7 +139,7 @@ irqreturn_t
 ipi_interrupt(int irq, void *dev_id) 
 {
 	int this_cpu = smp_processor_id();
-	struct cpuinfo_parisc *p = &cpu_data[this_cpu];
+	struct cpuinfo_parisc *p = &per_cpu(cpu_data, this_cpu);
 	unsigned long ops;
 	unsigned long flags;
 
@@ -217,13 +218,13 @@ ipi_interrupt(int irq, void *dev_id)
 static inline void
 ipi_send(int cpu, enum ipi_message_type op)
 {
-	struct cpuinfo_parisc *p = &cpu_data[cpu];
+	struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpu);
 	spinlock_t *lock = &per_cpu(ipi_lock, cpu);
 	unsigned long flags;
 
 	spin_lock_irqsave(lock, flags);
 	p->pending_ipi |= 1 << op;
-	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, cpu_data[cpu].hpa);
+	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, p->hpa);
 	spin_unlock_irqrestore(lock, flags);
 }
 
@@ -360,6 +357,7 @@ void __init smp_callin(void)
  */
 int __cpuinit smp_boot_one_cpu(int cpuid)
 {
+	const struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpuid);
 	struct task_struct *idle;
 	long timeout;
 
@@ -391,7 +389,7 @@ int __cpuinit smp_boot_one_cpu(int cpuid)
 	smp_init_current_idle_task = idle ;
 	mb();
 
-	printk("Releasing cpu %d now, hpa=%lx\n", cpuid, cpu_data[cpuid].hpa);
+	printk(KERN_INFO "Releasing cpu %d now, hpa=%lx\n", cpuid, p->hpa);
 
 	/*
 	** This gets PDC to release the CPU from a very tight loop.
@@ -402,7 +400,7 @@ int __cpuinit smp_boot_one_cpu(int cpuid)
 	** EIR{0}). MEM_RENDEZ is valid only when it is nonzero and the 
 	** contents of memory are valid."
 	*/
-	gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, cpu_data[cpuid].hpa);
+	gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, p->hpa);
 	mb();
 
 	/* 
@@ -434,12 +432,12 @@ alive:
 	return 0;
 }
 
-void __devinit smp_prepare_boot_cpu(void)
+void __init smp_prepare_boot_cpu(void)
 {
-	int bootstrap_processor=cpu_data[0].cpuid;	/* CPU ID of BSP */
+	int bootstrap_processor = per_cpu(cpu_data, 0).cpuid;
 
 	/* Setup BSP mappings */
-	printk("SMP: bootstrap CPU ID is %d\n",bootstrap_processor);
+	printk(KERN_INFO "SMP: bootstrap CPU ID is %d\n", bootstrap_processor);
 
 	cpu_set(bootstrap_processor, cpu_online_map);
 	cpu_set(bootstrap_processor, cpu_present_map);
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 4d09203..9d46c43 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -60,7 +60,7 @@ irqreturn_t timer_interrupt(int irq, void *dev_id)
 	unsigned long cycles_elapsed, ticks_elapsed;
 	unsigned long cycles_remainder;
 	unsigned int cpu = smp_processor_id();
-	struct cpuinfo_parisc *cpuinfo = &cpu_data[cpu];
+	struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
 
 	/* gcc can optimize for "read-only" case with a local clocktick */
 	unsigned long cpt = clocktick;
@@ -213,7 +213,7 @@ void __init start_cpu_itimer(void)
 
 	mtctl(next_tick, 16);		/* kick off Interval Timer (CR16) */
 
-	cpu_data[cpu].it_value = next_tick;
+	per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
 struct platform_device rtc_parisc_dev = {
diff --git a/arch/parisc/kernel/topology.c b/arch/parisc/kernel/topology.c
index d71cb01..f515938 100644
--- a/arch/parisc/kernel/topology.c
+++ b/arch/parisc/kernel/topology.c
@@ -22,14 +22,14 @@
 #include <linux/cpu.h>
 #include <linux/cache.h>
 
-static struct cpu cpu_devices[NR_CPUS] __read_mostly;
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
 
 static int __init topology_init(void)
 {
 	int num;
 
 	for_each_present_cpu(num) {
-		register_cpu(&cpu_devices[num], num);
+		register_cpu(&per_cpu(cpu_devices, num), num);
 	}
 	return 0;
 }

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From - Thu Nov 08 21:03:18 2018
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X-Mozilla-Keys:                                                                                 
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From: Rusty Russell <rusty@rustcorp.com.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: fix module loading failure of large kernel modules (take 2)
Date: Wed, 31 Dec 2008 09:15:40 +1030
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Cc: "linux-parisc" <linux-parisc@vger.kernel.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Randolph Chung <randolph@tausq.org>,
	Linus <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	John David Anglin <dave@hiauly1.hia.nrc.ca>
To: Helge Deller <deller@gmx.de>
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On Tuesday 30 December 2008 07:04:54 Helge Deller wrote:
> This is the second take of the patch series.
> Changes to previous version:
> - new CONFIG_HAVE_MODULE_SECTION_STUBS config option
> - put stub entries of a code section in front of the section
> 
> ____________
> The parisc port (esp. the 32bit kernel) currently lacks the ability to
> load large kernel modules like xfs or ipv6. This is a long outstanding
> bug and has already been reported a few times, e.g.:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=350482,
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=401439,
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=508489
> 
> The symptom is like this:
> # modprobe xfs
> FATAL: Error inserting xfs
> (/lib/modules/2.6.26-1-parisc/kernel/fs/xfs/xfs.ko): Invalid module
> format
> 
> In dmesg:
> module xfs relocation of symbol xfs_btree_read_bufs is out of range
> (0x3ffefffe in 17 bits)
> 
> The reason for the failure is, that the architecture only provides the
> R_PARISC_PCREL17F (for 32bit kernels) and R_PARISC_PCREL22F (for PA2.0
> and 64bit kernels) relocations, which sometimes can't reach the target
> address of the stub entry if the kernel module is too large. Currently
> parisc (like other architectures) creates one big PLT section for all
> stubs at the beginning of the init and core sections.
> 
> The following two patches changes the parisc module loader to put stubs
> for the code sections in front of each section, so that the distance to
> the stubs more easily fits into the available 17/22 bits.

So now any one section has to pass 17 bits to break?  How close are you with
the xfs module?

But it's kind of nasty, overloading sh_entsize further.  Could we instead
do something like add a arch_module_section_size() weak fn which you can
overload?  We'd use that in get_offset() so our layout and size calculations
were correct, and use sh_size everywhere else.

Cheers,
Rusty.
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From - Thu Nov 08 21:03:18 2018
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Subject: Re: [PATCH] parisc: fix module loading failure of large kernel modules
 (take 2)
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Rusty Russell wrote:
> On Tuesday 30 December 2008 07:04:54 Helge Deller wrote:
>> This is the second take of the patch series.
>> Changes to previous version:
>> - new CONFIG_HAVE_MODULE_SECTION_STUBS config option
>> - put stub entries of a code section in front of the section
>>
>> ____________
>> The parisc port (esp. the 32bit kernel) currently lacks the ability to
>> load large kernel modules like xfs or ipv6. This is a long outstanding
>> bug and has already been reported a few times, e.g.:
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=350482,
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=401439,
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=508489
>>
>> The symptom is like this:
>> # modprobe xfs
>> FATAL: Error inserting xfs
>> (/lib/modules/2.6.26-1-parisc/kernel/fs/xfs/xfs.ko): Invalid module
>> format
>>
>> In dmesg:
>> module xfs relocation of symbol xfs_btree_read_bufs is out of range
>> (0x3ffefffe in 17 bits)
>>
>> The reason for the failure is, that the architecture only provides the
>> R_PARISC_PCREL17F (for 32bit kernels) and R_PARISC_PCREL22F (for PA2.0
>> and 64bit kernels) relocations, which sometimes can't reach the target
>> address of the stub entry if the kernel module is too large. Currently
>> parisc (like other architectures) creates one big PLT section for all
>> stubs at the beginning of the init and core sections.
>>
>> The following two patches changes the parisc module loader to put stubs
>> for the code sections in front of each section, so that the distance to
>> the stubs more easily fits into the available 17/22 bits.
> 
> So now any one section has to pass 17 bits to break?  How close are you with
> the xfs module?

I did not tested it very much, but xfs is around 1.1M on disk, and ~750K when 
loaded. I think it breaked being 1/4 through the relocations.

> But it's kind of nasty, overloading sh_entsize further.  Could we instead
> do something like add a arch_module_section_size() weak fn which you can
> overload?

Sure. I'll respin the patch.

> We'd use that in get_offset() so our layout and size calculations
> were correct, 

Yes, good.

> and use sh_size everywhere else.

BTW, although the comment states that arches can change section sizes 
in the module_frob_arch_sections() function:
/* Allow arches to frob section contents and sizes.  */
it will break horrible if you do so.
What I found was, that if you change sh_size, at least the module
references / dependency chain will break when running lsmod.

Helge
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Subject: Re: [PATCH] parisc: fix module loading failure of large kernel modules (take 2)
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Cc: "linux-parisc" <linux-parisc@vger.kernel.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
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To: Helge Deller <deller@gmx.de>
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On Wednesday 31 December 2008 09:32:41 Helge Deller wrote:
> BTW, although the comment states that arches can change section sizes 
> in the module_frob_arch_sections() function:
> /* Allow arches to frob section contents and sizes.  */
> it will break horrible if you do so.
> What I found was, that if you change sh_size, at least the module
> references / dependency chain will break when running lsmod.

Well, you can change the size of NOBITS sections: other things are likely
to be less successful.  You could probably make them smaller, though.

Cheers,
Rusty.
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Subject: Re: [PATCH] parisc: fix module loading failure of large kernel modules
 (take 4)
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To: Rusty Russell <rusty@rustcorp.com.au>
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[PATCH 1/2] module.c: fix module loading failure of large kernel modules

When creating the final layout of a kernel module in memory, allow the
module loader to reserve some additional memory in front of a given section.
This is currently only needed for the parisc port which needs to put the
stub entries there to fulfill the 17/22bit PCREL relocations with large
kernel modules like xfs.

Differences of this patch to previous versions:
- added weak funtion arch_module_section_size()
- no kernel config options needed
- no overloading of sh_entsize

Signed-off-by: Helge Deller <deller@gmx.de>

diffstat:
 include/linux/moduleloader.h |    4 ++++
 kernel/module.c              |   16 +++++++++++++---
 2 files changed, 17 insertions(+), 3 deletions(-)


diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index eb10339..f2b1b62 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -13,6 +13,10 @@ int module_frob_arch_sections(Elf_Ehdr *hdr,
 			      char *secstrings,
 			      struct module *mod);
 
+/* Additional bytes needed by arch in front of individual sections */
+unsigned int arch_module_section_size(struct module *mod,
+				      unsigned int section);
+
 /* Allocator used for allocating struct module, core sections and init
    sections.  Returns NULL on failure. */
 void *module_alloc(unsigned long size);
diff --git a/kernel/module.c b/kernel/module.c
index 1f4cc00..5b91b17 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1578,11 +1578,21 @@ static int simplify_symbols(Elf_Shdr *sechdrs,
 	return ret;
 }
 
+/* Additional bytes needed by arch in front of individual sections */
+unsigned int __attribute__ ((weak)) arch_module_section_size(
+		struct module *mod, unsigned int section)
+{
+	/* default implementation just returns zero */
+	return 0;
+}
+
 /* Update size with this section: return offset. */
-static long get_offset(unsigned int *size, Elf_Shdr *sechdr)
+static long get_offset(struct module *mod, unsigned int *size,
+		Elf_Shdr *sechdr, unsigned int section)
 {
 	long ret;
 
+	*size += arch_module_section_size(mod, section);
 	ret = ALIGN(*size, sechdr->sh_addralign ?: 1);
 	*size = ret + sechdr->sh_size;
 	return ret;
@@ -1622,7 +1632,7 @@ static void layout_sections(struct module *mod,
 			    || strncmp(secstrings + s->sh_name,
 				       ".init", 5) == 0)
 				continue;
-			s->sh_entsize = get_offset(&mod->core_size, s);
+			s->sh_entsize = get_offset(mod, &mod->core_size, s, i);
 			DEBUGP("\t%s\n", secstrings + s->sh_name);
 		}
 		if (m == 0)
@@ -1640,7 +1650,7 @@ static void layout_sections(struct module *mod,
 			    || strncmp(secstrings + s->sh_name,
 				       ".init", 5) != 0)
 				continue;
-			s->sh_entsize = (get_offset(&mod->init_size, s)
+			s->sh_entsize = (get_offset(mod, &mod->init_size, s, i)
 					 | INIT_OFFSET_MASK);
 			DEBUGP("\t%s\n", secstrings + s->sh_name);
 		}
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH 2/2] parisc: fix module loading failure of large modules
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[PATCH 2/2] parisc: fix module loading failure of large modules (take 3)

On 32bit (and sometimes 64bit) and with big kernel modules like xfs or
ipv6 the relocation types R_PARISC_PCREL17F and R_PARISC_PCREL22F may
fail to reach their PLT stub if we only create one big stub array for
all sections at the beginning of the core or init section.

With this patch we now instead add individual PLT stub entries
directly in front of the code sections where the stubs are actually
called. This reduces the distance between the PCREL location and the
stub entry so that the relocations can be fulfilled.

While calculating the final layout of the kernel module in memory, the
kernel module loader calls arch_module_section_size() to request the
to be reserved amount of memory in front of each individual section.

Tested with 32- and 64bit kernels.

Signed-off-by: Helge Deller <deller@gmx.de>

diffstat:
 include/asm/module.h |    6 -
 kernel/module.c      |  217 +++++++++++++++++++++++++++++++--------------------
 2 files changed, 140 insertions(+), 83 deletions(-)


diff --git a/arch/parisc/include/asm/module.h b/arch/parisc/include/asm/module.h
index c2cb49e..1f41234 100644
--- a/arch/parisc/include/asm/module.h
+++ b/arch/parisc/include/asm/module.h
@@ -23,8 +23,10 @@ struct mod_arch_specific
 {
 	unsigned long got_offset, got_count, got_max;
 	unsigned long fdesc_offset, fdesc_count, fdesc_max;
-	unsigned long stub_offset, stub_count, stub_max;
-	unsigned long init_stub_offset, init_stub_count, init_stub_max;
+	struct {
+		unsigned long stub_offset;
+		unsigned int stub_entries;
+		} *section;
 	int unwind_section;
 	struct unwind_table *unwind;
 };
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 44138c3..3228007 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -6,6 +6,7 @@
  *
  *    Linux/PA-RISC Project (http://www.parisc-linux.org/)
  *    Copyright (C) 2003 Randolph Chung <tausq at debian . org>
+ *    Copyright (C) 2008 Helge Deller <deller@gmx.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -24,6 +25,19 @@
  *
  *
  *    Notes:
+ *    - PLT stub handling
+ *      On 32bit (and sometimes 64bit) and with big kernel modules like xfs or
+ *      ipv6 the relocation types R_PARISC_PCREL17F and R_PARISC_PCREL22F may
+ *      fail to reach their PLT stub if we only create one big stub array for
+ *      all sections at the beginning of the core or init section.
+ *      Instead we now insert individual PLT stub entries directly in front of
+ *      of the code sections where the stubs are actually called.
+ *      This reduces the distance between the PCREL location and the stub entry
+ *      so that the relocations can be fulfilled.
+ *      While calculating the final layout of the kernel module in memory, the
+ *      kernel module loader calls arch_module_section_size() to request the
+ *      to be reserved amount of memory in front of each individual section.
+ *
  *    - SEGREL32 handling
  *      We are not doing SEGREL32 handling correctly. According to the ABI, we
  *      should do a value offset, like this:
@@ -58,9 +72,13 @@
 #define DEBUGP(fmt...)
 #endif
 
+#define RELOC_REACHABLE(val, bits) \
+	(( ( !((val) & (1<<((bits)-1))) && ((val)>>(bits)) != 0 )  ||	\
+	     ( ((val) & (1<<((bits)-1))) && ((val)>>(bits)) != (((__typeof__(val))(~0))>>((bits)+2)))) ? \
+	0 : 1)
+
 #define CHECK_RELOC(val, bits) \
-	if ( ( !((val) & (1<<((bits)-1))) && ((val)>>(bits)) != 0 )  ||	\
-	     ( ((val) & (1<<((bits)-1))) && ((val)>>(bits)) != (((__typeof__(val))(~0))>>((bits)+2)))) { \
+	if (!RELOC_REACHABLE(val, bits)) { \
 		printk(KERN_ERR "module %s relocation of symbol %s is out of range (0x%lx in %d bits)\n", \
 		me->name, strtab + sym->st_name, (unsigned long)val, bits); \
 		return -ENOEXEC;			\
@@ -92,13 +110,6 @@ static inline int in_local(struct module *me, void *loc)
 	return in_init(me, loc) || in_core(me, loc);
 }
 
-static inline int in_local_section(struct module *me, void *loc, void *dot)
-{
-	return (in_init(me, loc) && in_init(me, dot)) ||
-		(in_core(me, loc) && in_core(me, dot));
-}
-
-
 #ifndef CONFIG_64BIT
 struct got_entry {
 	Elf32_Addr addr;
@@ -258,23 +269,43 @@ static inline unsigned long count_stubs(const Elf_Rela *rela, unsigned long n)
 /* Free memory returned from module_alloc */
 void module_free(struct module *mod, void *module_region)
 {
+	kfree(mod->arch.section);
+	mod->arch.section = NULL;
+
 	vfree(module_region);
 	/* FIXME: If module_region == mod->init_region, trim exception
            table entries. */
 }
 
+
+/* Additional bytes needed in front of individual sections. */
+unsigned int arch_module_section_size(struct module *mod,
+				      unsigned int section)
+{
+	/* size needed for all stubs of this section (including
+	 * one additional for correct alignment of the stubs) */
+	return (mod->arch.section[section].stub_entries + 1)
+		* sizeof(struct stub_entry);
+}
+
 #define CONST 
 int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 			      CONST Elf_Shdr *sechdrs,
 			      CONST char *secstrings,
 			      struct module *me)
 {
-	unsigned long gots = 0, fdescs = 0, stubs = 0, init_stubs = 0;
+	unsigned long gots = 0, fdescs = 0, len;
 	unsigned int i;
 
+	len = hdr->e_shnum * sizeof(me->arch.section[0]);
+	me->arch.section = kzalloc(len, GFP_KERNEL);
+	if (!me->arch.section)
+		return -ENOMEM;
+
 	for (i = 1; i < hdr->e_shnum; i++) {
-		const Elf_Rela *rels = (void *)hdr + sechdrs[i].sh_offset;
+		const Elf_Rela *rels = (void *)sechdrs[i].sh_addr;
 		unsigned long nrels = sechdrs[i].sh_size / sizeof(*rels);
+		unsigned int count, s;
 
 		if (strncmp(secstrings + sechdrs[i].sh_name,
 			    ".PARISC.unwind", 14) == 0)
@@ -290,11 +321,23 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 		 */
 		gots += count_gots(rels, nrels);
 		fdescs += count_fdescs(rels, nrels);
-		if(strncmp(secstrings + sechdrs[i].sh_name,
-			   ".rela.init", 10) == 0)
-			init_stubs += count_stubs(rels, nrels);
-		else
-			stubs += count_stubs(rels, nrels);
+
+		/* XXX: By sorting the relocs and finding duplicate entries
+		 *  we could reduce the number of necessary stubs and save
+		 *  some memory. */
+		count = count_stubs(rels, nrels);
+		if (!count)
+			continue;
+
+		/* so we need relocation stubs. reserve necessary memory. */
+		/* sh_info gives the section for which we need to add stubs. */
+		s = sechdrs[i].sh_info;
+
+		/* each code section should only have one relocation section */
+		WARN_ON(me->arch.section[s].stub_entries);
+
+		/* store number of stubs we need for this section */
+		me->arch.section[s].stub_entries += count;
 	}
 
 	/* align things a bit */
@@ -306,18 +349,8 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 	me->arch.fdesc_offset = me->core_size;
 	me->core_size += fdescs * sizeof(Elf_Fdesc);
 
-	me->core_size = ALIGN(me->core_size, 16);
-	me->arch.stub_offset = me->core_size;
-	me->core_size += stubs * sizeof(struct stub_entry);
-
-	me->init_size = ALIGN(me->init_size, 16);
-	me->arch.init_stub_offset = me->init_size;
-	me->init_size += init_stubs * sizeof(struct stub_entry);
-
 	me->arch.got_max = gots;
 	me->arch.fdesc_max = fdescs;
-	me->arch.stub_max = stubs;
-	me->arch.init_stub_max = init_stubs;
 
 	return 0;
 }
@@ -380,23 +413,27 @@ enum elf_stub_type {
 };
 
 static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
-	enum elf_stub_type stub_type, int init_section)
+	enum elf_stub_type stub_type, Elf_Addr loc0, unsigned int targetsec)
 {
-	unsigned long i;
 	struct stub_entry *stub;
 
-	if(init_section) {
-		i = me->arch.init_stub_count++;
-		BUG_ON(me->arch.init_stub_count > me->arch.init_stub_max);
-		stub = me->module_init + me->arch.init_stub_offset + 
-			i * sizeof(struct stub_entry);
-	} else {
-		i = me->arch.stub_count++;
-		BUG_ON(me->arch.stub_count > me->arch.stub_max);
-		stub = me->module_core + me->arch.stub_offset + 
-			i * sizeof(struct stub_entry);
+	/* initialize stub_offset to point in front of the section */
+	if (!me->arch.section[targetsec].stub_offset) {
+		loc0 -= (me->arch.section[targetsec].stub_entries + 1) *
+				sizeof(struct stub_entry);
+		/* get correct alignment for the stubs */
+		loc0 = ALIGN(loc0, sizeof(struct stub_entry));
+		me->arch.section[targetsec].stub_offset = loc0;
 	}
 
+	/* get address of stub entry */
+	stub = (void *) me->arch.section[targetsec].stub_offset;
+	me->arch.section[targetsec].stub_offset += sizeof(struct stub_entry);
+
+	/* do not write outside available stub area */
+	BUG_ON(0 == me->arch.section[targetsec].stub_entries--);
+
+
 #ifndef CONFIG_64BIT
 /* for 32-bit the stub looks like this:
  * 	ldil L'XXX,%r1
@@ -489,15 +526,19 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 	Elf32_Addr val;
 	Elf32_Sword addend;
 	Elf32_Addr dot;
+	Elf_Addr loc0;
+	unsigned int targetsec = sechdrs[relsec].sh_info;
 	//unsigned long dp = (unsigned long)$global$;
 	register unsigned long dp asm ("r27");
 
 	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
+	       targetsec);
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
 		/* This is where to make the change */
-		loc = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+		loc = (void *)sechdrs[targetsec].sh_addr
 		      + rel[i].r_offset;
+		/* This is the start of the target section */
+		loc0 = sechdrs[targetsec].sh_addr;
 		/* This is the symbol it is referring to */
 		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
 			+ ELF32_R_SYM(rel[i].r_info);
@@ -569,19 +610,32 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			break;
 		case R_PARISC_PCREL17F:
 			/* 17-bit PC relative address */
-			val = get_stub(me, val, addend, ELF_STUB_GOT, in_init(me, loc));
+			/* calculate direct call offset */
+			val += addend;
 			val = (val - dot - 8)/4;
-			CHECK_RELOC(val, 17)
+			if (!RELOC_REACHABLE(val, 17)) {
+				/* direct distance too far, create
+				 * stub entry instead */
+				val = get_stub(me, sym->st_value, addend,
+					ELF_STUB_DIRECT, loc0, targetsec);
+				val = (val - dot - 8)/4;
+				CHECK_RELOC(val, 17);
+			}
 			*loc = (*loc & ~0x1f1ffd) | reassemble_17(val);
 			break;
 		case R_PARISC_PCREL22F:
 			/* 22-bit PC relative address; only defined for pa20 */
-			val = get_stub(me, val, addend, ELF_STUB_GOT, in_init(me, loc));
-			DEBUGP("STUB FOR %s loc %lx+%lx at %lx\n", 
-			       strtab + sym->st_name, (unsigned long)loc, addend, 
-			       val)
+			/* calculate direct call offset */
+			val += addend;
 			val = (val - dot - 8)/4;
-			CHECK_RELOC(val, 22);
+			if (!RELOC_REACHABLE(val, 22)) {
+				/* direct distance too far, create
+				 * stub entry instead */
+				val = get_stub(me, sym->st_value, addend,
+					ELF_STUB_DIRECT, loc0, targetsec);
+				val = (val - dot - 8)/4;
+				CHECK_RELOC(val, 22);
+			}
 			*loc = (*loc & ~0x3ff1ffd) | reassemble_22(val);
 			break;
 
@@ -610,13 +664,17 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 	Elf64_Addr val;
 	Elf64_Sxword addend;
 	Elf64_Addr dot;
+	Elf_Addr loc0;
+	unsigned int targetsec = sechdrs[relsec].sh_info;
 
 	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
+	       targetsec);
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
 		/* This is where to make the change */
-		loc = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+		loc = (void *)sechdrs[targetsec].sh_addr
 		      + rel[i].r_offset;
+		/* This is the start of the target section */
+		loc0 = sechdrs[targetsec].sh_addr;
 		/* This is the symbol it is referring to */
 		sym = (Elf64_Sym *)sechdrs[symindex].sh_addr
 			+ ELF64_R_SYM(rel[i].r_info);
@@ -672,42 +730,40 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			DEBUGP("PCREL22F Symbol %s loc %p val %lx\n",
 			       strtab + sym->st_name,
 			       loc, val);
+			val += addend;
 			/* can we reach it locally? */
-			if(!in_local_section(me, (void *)val, (void *)dot)) {
-
-				if (in_local(me, (void *)val))
-					/* this is the case where the
-					 * symbol is local to the
-					 * module, but in a different
-					 * section, so stub the jump
-					 * in case it's more than 22
-					 * bits away */
-					val = get_stub(me, val, addend, ELF_STUB_DIRECT,
-						       in_init(me, loc));
-				else if (strncmp(strtab + sym->st_name, "$$", 2)
+			if (in_local(me, (void *)val)) {
+				/* this is the case where the symbol is local
+				 * to the module, but in a different section,
+				 * so stub the jump in case it's more than 22
+				 * bits away */
+				val = (val - dot - 8)/4;
+				if (!RELOC_REACHABLE(val, 22)) {
+					/* direct distance too far, create
+					 * stub entry instead */
+					val = get_stub(me, sym->st_value,
+						addend, ELF_STUB_DIRECT,
+						loc0, targetsec);
+				} else {
+					/* Ok, we can reach it directly. */
+					val = sym->st_value;
+					val += addend;
+				}
+			} else {
+				val = sym->st_value;
+				if (strncmp(strtab + sym->st_name, "$$", 2)
 				    == 0)
 					val = get_stub(me, val, addend, ELF_STUB_MILLI,
-						       in_init(me, loc));
+						       loc0, targetsec);
 				else
 					val = get_stub(me, val, addend, ELF_STUB_GOT,
-						       in_init(me, loc));
+						       loc0, targetsec);
 			}
 			DEBUGP("STUB FOR %s loc %lx, val %lx+%lx at %lx\n", 
 			       strtab + sym->st_name, loc, sym->st_value,
 			       addend, val);
-			/* FIXME: local symbols work as long as the
-			 * core and init pieces aren't separated too
-			 * far.  If this is ever broken, you will trip
-			 * the check below.  The way to fix it would
-			 * be to generate local stubs to go between init
-			 * and core */
-			if((Elf64_Sxword)(val - dot - 8) > 0x800000 -1 ||
-			   (Elf64_Sxword)(val - dot - 8) < -0x800000) {
-				printk(KERN_ERR "Module %s, symbol %s is out of range for PCREL22F relocation\n",
-				       me->name, strtab + sym->st_name);
-				return -ENOEXEC;
-			}
 			val = (val - dot - 8)/4;
+			CHECK_RELOC(val, 22);
 			*loc = (*loc & ~0x3ff1ffd) | reassemble_22(val);
 			break;
 		case R_PARISC_DIR64:
@@ -794,12 +850,8 @@ int module_finalize(const Elf_Ehdr *hdr,
 	addr = (u32 *)entry->addr;
 	printk("INSNS: %x %x %x %x\n",
 	       addr[0], addr[1], addr[2], addr[3]);
-	printk("stubs used %ld, stubs max %ld\n"
-	       "init_stubs used %ld, init stubs max %ld\n"
-	       "got entries used %ld, gots max %ld\n"
+	printk("got entries used %ld, gots max %ld\n"
 	       "fdescs used %ld, fdescs max %ld\n",
-	       me->arch.stub_count, me->arch.stub_max,
-	       me->arch.init_stub_count, me->arch.init_stub_max,
 	       me->arch.got_count, me->arch.got_max,
 	       me->arch.fdesc_count, me->arch.fdesc_max);
 #endif
@@ -829,7 +881,10 @@ int module_finalize(const Elf_Ehdr *hdr,
 				me->name, me->arch.got_count, MAX_GOTS);
 		return -EINVAL;
 	}
-	
+
+	kfree(me->arch.section);
+	me->arch.section = NULL;
+
 	/* no symbol table */
 	if(symhdr == NULL)
 		return 0;
--
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From - Thu Nov 08 21:03:18 2018
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From: Rusty Russell <rusty@rustcorp.com.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: fix module loading failure of large kernel modules (take 4)
Date: Thu, 1 Jan 2009 00:02:40 +1030
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Cc: "linux-parisc" <linux-parisc@vger.kernel.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Randolph Chung <randolph@tausq.org>,
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	Andrew Morton <akpm@linux-foundation.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	John David Anglin <dave@hiauly1.hia.nrc.ca>
To: Helge Deller <deller@gmx.de>
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On Wednesday 31 December 2008 22:01:18 Helge Deller wrote:
> +/* Additional bytes needed by arch in front of individual sections */
> +unsigned int arch_module_section_size(struct module *mod,
> +				      unsigned int section);
> +
...
> +/* Additional bytes needed by arch in front of individual sections */
> +unsigned int __attribute__ ((weak)) arch_module_section_size(
> +		struct module *mod, unsigned int section)
> +{
> +	/* default implementation just returns zero */
> +	return 0;
> +}

Not quite what I had in mind... let me show you:

/* Bytes needed for a section: default is just the section size. */
unsigned int __attribute__((weak))
arch_module_section_size(struct module *mod, Elf_Shdr *sechdrs, unsigned int sec)
{
	return sechdrs[sec].sh_size;
}

Otherwise I'd have called it "arch_module_extra_size()".

Cheers,
Rusty.
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From - Thu Nov 08 21:03:18 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: fix module loading failure of large kernel modules
 (take 4)
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To: Rusty Russell <rusty@rustcorp.com.au>
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Rusty Russell wrote:
> Not quite what I had in mind... let me show you:
> ...
> Otherwise I'd have called it "arch_module_extra_size()".

Hmm, this needs more thinking then.

So, in summary this would be your proposed change (?):

+/* Bytes needed for a section: default is just the section size. */
+unsigned int __attribute__((weak))
+arch_module_section_size(struct module *mod, Elf_Shdr *sechdrs, unsigned int sec)
+{
+       return sechdrs[sec].sh_size;
+}
+
 /* Update size with this section: return offset. */
-static long get_offset(unsigned int *size, Elf_Shdr *sechdr)
+static long get_offset(struct module *mod, unsigned int *size,
+               Elf_Shdr *sechdr, unsigned int section)
 {
        long ret;

        ret = ALIGN(*size, sechdr->sh_addralign ?: 1);
-       *size = ret + sechdr->sh_size;
+       *size = ret + arch_module_section_size(mod, sechdr, section);
        return ret;
 }


This would mean that I can increase the section size in the arch-specific function
by returning a bigger value than sh_size.
This would give me space at the end of the section, but not at the beginning 
(which is what I need), as sh_entsize (the offset into memory) will stay the 
same as before.
Example: Having an initial value for core_size of zero, the code bits of the 
very first section are still copied into the very first byte in memory, leaving
me no room for the stubs.

The important part of get_offset() is, which value is returned to the caller.
Let's try another example which would work for me:

+static long get_offset(struct module *mod, unsigned int *size,
+               Elf_Shdr *sechdr, unsigned int section)
 {
-       long ret;
+       long ret, sect_size;

+       sect_size = arch_module_section_size(mod, sechdr, section);
+       *size += (sect_size - sechdr->sh_size);
        ret = ALIGN(*size, sechdr->sh_addralign ?: 1);
        *size = ret + sechdr->sh_size;
	return ret;

IMHO, this is hackish and ugly.

A last option for me would be to set core_size to the initial value
of bytes which I would need for section 1 and returning in 
arch_module_section_size() when asked for the size of section 1 the 
sum of sh_size[section 1] + additional_bytes_needed_for_section_2,
and so on...

Any proposals?

Helge
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From - Thu Nov 08 21:03:19 2018
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From: Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: fix module loading failure of large kernel
 modules (take 4)
Date: Wed, 31 Dec 2008 09:29:36 -0800 (PST)
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Cc: Rusty Russell <rusty@rustcorp.com.au>,
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To: Helge Deller <deller@gmx.de>
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On Wed, 31 Dec 2008, Helge Deller wrote:
>
> [PATCH 1/2] module.c: fix module loading failure of large kernel modules
> 
> When creating the final layout of a kernel module in memory, allow the
> module loader to reserve some additional memory in front of a given section.
> This is currently only needed for the parisc port which needs to put the
> stub entries there to fulfill the 17/22bit PCREL relocations with large
> kernel modules like xfs.
> 
> Differences of this patch to previous versions:
> - added weak funtion arch_module_section_size()

This doesn't work.

We've had this bug several times now, and one of them just very recently.

Some gcc versions will inline weak functions if they are in scope - even 
if there is a non-weak function somewhere else. So you MUST NOT have the 
weak definition in the same file (or indirectly called through some inline 
functions in a header file) as the call. Because if you do, then any user 
with the wrong version of gcc will get the weak function semantics, even 
if it was meant to be overridden by something else.

> +/* Additional bytes needed by arch in front of individual sections */
> +unsigned int __attribute__ ((weak)) arch_module_section_size(
> +		struct module *mod, unsigned int section)

We don't write out that whole "__attribute__" crud. We use

	unsigned in __weak arch_module_section_size(struct module *mod, unsigned int section)

instead. But as mentioned, it needs to be in another compilation unit.

		Linus
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From - Thu Nov 08 21:03:19 2018
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From: Roland Dreier <rdreier@cisco.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: fix module loading failure of large kernel modules (take 4)
Date: Wed, 31 Dec 2008 09:36:09 -0800
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Cc: Helge Deller <deller@gmx.de>,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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 > Some gcc versions will inline weak functions if they are in scope - even 
 > if there is a non-weak function somewhere else. So you MUST NOT have the 
 > weak definition in the same file (or indirectly called through some inline 
 > functions in a header file) as the call. Because if you do, then any user 
 > with the wrong version of gcc will get the weak function semantics, even 
 > if it was meant to be overridden by something else.

Does this mean lib/swiotlb.c is broken now?  It has eg:

	void * __weak swiotlb_alloc_boot(size_t size, unsigned long nslabs)

and then

	void __init
	swiotlb_init_with_default_size(size_t default_size)
	{
...
		io_tlb_start = swiotlb_alloc_boot(bytes, io_tlb_nslabs);

later on in the same file.

(I just notice this because I saw the warning about swiotlb_alloc_boot()
not being __init but calling __alloc_bootmem_low and so I looked at the
code yesterday)

 - R.
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From - Thu Nov 08 21:03:19 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: fix module loading failure of large kernel modules
 (take 4)
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	Rusty Russell <rusty@rustcorp.com.au>
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Linus Torvalds wrote:
> 
> On Wed, 31 Dec 2008, Helge Deller wrote:
>> [PATCH 1/2] module.c: fix module loading failure of large kernel modules
>>
>> When creating the final layout of a kernel module in memory, allow the
>> module loader to reserve some additional memory in front of a given section.
>> This is currently only needed for the parisc port which needs to put the
>> stub entries there to fulfill the 17/22bit PCREL relocations with large
>> kernel modules like xfs.
>>
>> Differences of this patch to previous versions:
>> - added weak funtion arch_module_section_size()
> 
> This doesn't work.
> 
> We've had this bug several times now, and one of them just very recently.
> 
> Some gcc versions will inline weak functions if they are in scope - even 
> if there is a non-weak function somewhere else. So you MUST NOT have the 
> weak definition in the same file (or indirectly called through some inline 
> functions in a header file) as the call. Because if you do, then any user 
> with the wrong version of gcc will get the weak function semantics, even 
> if it was meant to be overridden by something else.

Ok, that might explain why I saw some strange things in the unwind tables
after that I switched to using the weak function (hppa-crosscompiler, gcc-3.3.4).

>> +/* Additional bytes needed by arch in front of individual sections */
>> +unsigned int __attribute__ ((weak)) arch_module_section_size(
>> +		struct module *mod, unsigned int section)
> 
> We don't write out that whole "__attribute__" crud. We use
> 
> 	unsigned in __weak arch_module_section_size(struct module *mod, unsigned int section)
> 
> instead.

Ok.

> But as mentioned, it needs to be in another compilation unit.

Understood.

Rusty, back to you for an advise on how to continue ;-)
(I assume Rusty is just right now celebrating new-year)

Helge
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From - Thu Nov 08 21:03:19 2018
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From: Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: fix module loading failure of large kernel
 modules (take 4)
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Cc: Helge Deller <deller@gmx.de>,
	Rusty Russell <rusty@rustcorp.com.au>,
	linux-parisc <linux-parisc@vger.kernel.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
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	Andrew Morton <akpm@linux-foundation.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	John David Anglin <dave@hiauly1.hia.nrc.ca>
To: Roland Dreier <rdreier@cisco.com>, Ingo Molnar <mingo@elte.hu>,
	Ian Campbell <ian.campbell@citrix.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
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On Wed, 31 Dec 2008, Roland Dreier wrote:
> 
> Does this mean lib/swiotlb.c is broken now?

Yes it does.

> It has eg:
>
> 	void * __weak swiotlb_alloc_boot(size_t size, unsigned long nslabs)
> 
> and then
> 
> 	void __init
> 	swiotlb_init_with_default_size(size_t default_size)
> 	{
> ...
> 		io_tlb_start = swiotlb_alloc_boot(bytes, io_tlb_nslabs);
> 
> later on in the same file.

Good eyes. 

Ingo? This comes from commit b81ea27b2329bf44b30c427800954f845896d476, by 
Ian, through Jeremy.

> (I just notice this because I saw the warning about swiotlb_alloc_boot()
> not being __init but calling __alloc_bootmem_low and so I looked at the
> code yesterday)

Lucky us. What's nasty about this is that most developers probably have 
updated versions of gcc, and are then surprised when some odd user has 
insane behavior that doesn't match the source code - because the compiler 
did something unexpected.

I guess I could make a sparse rule for this, but nobody seems to run or 
care about sparse anyway. Sad.

		Linus
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On Wed, 31 Dec 2008, Linus Torvalds wrote:
> 
> I guess I could make a sparse rule for this, but nobody seems to run or 
> care about sparse anyway. Sad.

Ho humm. Looks like a sparse rule might be in order. These are just from 
my (smallish) personal config. I haven't checked them all, but I did check 
the first two, and yes, sparse did get it right.

  init/main.c:548:24: warning: Calling weak function 'smp_setup_processor_id' in file scope
  init/main.c:674:24: warning: Calling weak function 'thread_info_cache_init' in file scope
  arch/x86/kernel/e820.c:1364:38: warning: Calling weak function 'machine_specific_memory_setup' in file scope
  arch/x86/kernel/e820.c:1371:20: warning: Calling weak function 'memory_setup' in file scope
  arch/x86/kernel/reboot.c:386:22: warning: Calling weak function 'mach_reboot_fixups' in file scope
  kernel/sched.c:7720:26: warning: Calling weak function 'arch_update_cpu_topology' in file scope
  kernel/sched.c:7808:41: warning: Calling weak function 'arch_update_cpu_topology' in file scope
  kernel/fork.c:229:29: warning: Calling weak function 'arch_dup_task_struct' in file scope
  kernel/fork.c:1325:44: warning: Calling weak function 'idle_regs' in file scope
  kernel/sched_clock.c:158:19: warning: Calling weak function 'sched_clock' in file scope
  kernel/sched_clock.c:207:19: warning: Calling weak function 'sched_clock' in file scope
  kernel/time/timekeeping.c:283:43: warning: Calling weak function 'read_persistent_clock' in file scope
  kernel/time/timekeeping.c:318:43: warning: Calling weak function 'read_persistent_clock' in file scope
  kernel/time/timekeeping.c:353:50: warning: Calling weak function 'read_persistent_clock' in file scope
  mm/vmalloc.c:1645:18: warning: Calling weak function 'vmalloc_sync_all' in file scope
  mm/hugetlb.c:1039:32: warning: Calling weak function 'alloc_bootmem_huge_page' in file scope
  mm/sparse.c:448:29: warning: Calling weak function 'vmemmap_populate_print_last' in file scope
  fs/pipe.c:1069:18: warning: Calling weak function 'sys_pipe2' in file scope
  fs/proc/meminfo.c:145:21: warning: Calling weak function 'arch_report_meminfo' in file scope
  drivers/acpi/pci_irq.c:676:21: warning: Calling weak function 'acpi_unregister_gsi' in file scope
  drivers/char/mem.c:168:23: warning: Calling weak function 'unxlate_dev_mem_ptr' in file scope
  drivers/char/mem.c:172:22: warning: Calling weak function 'unxlate_dev_mem_ptr' in file scope
  drivers/char/mem.c:240:23: warning: Calling weak function 'unxlate_dev_mem_ptr' in file scope
  drivers/char/mem.c:246:22: warning: Calling weak function 'unxlate_dev_mem_ptr' in file scope
  drivers/char/mem.c:318:12: warning: Calling weak function 'map_devmem' in file scope
  drivers/char/mem.c:324:14: warning: Calling weak function 'unmap_devmem' in file scope
  drivers/char/mem.c:349:35: warning: Calling weak function 'phys_mem_access_prot_allowed' in file scope
  drivers/char/mem.c:365:15: warning: Calling weak function 'unmap_devmem' in file scope
  drivers/pci/probe.c:1159:36: warning: Calling weak function 'set_pci_bus_resources_arch_default' in file scope
  drivers/pci/pci.c:1015:24: warning: Calling weak function 'pcibios_disable_device' in file scope
  drivers/pci/pci.c:1043:37: warning: Calling weak function 'pcibios_set_pcie_reset_state' in file scope
  drivers/pci/pci-sysfs.c:897:39: warning: Calling weak function 'pcibios_add_platform_entries' in file scope
  drivers/pci/msi.c:49:27: warning: Calling weak function 'arch_setup_msi_irq' in file scope
  drivers/pci/msi.c:69:25: warning: Calling weak function 'arch_teardown_msi_irq' in file scope
  drivers/pci/msi.c:421:27: warning: Calling weak function 'arch_setup_msi_irqs' in file scope
  drivers/pci/msi.c:492:27: warning: Calling weak function 'arch_setup_msi_irqs' in file scope
  drivers/pci/msi.c:562:29: warning: Calling weak function 'arch_msi_check_device' in file scope
  drivers/pci/msi.c:654:24: warning: Calling weak function 'arch_teardown_msi_irqs' in file scope
  lib/swiotlb.c:141:28: warning: Calling weak function 'swiotlb_phys_to_bus' in file scope
  lib/swiotlb.c:146:41: warning: Calling weak function 'swiotlb_bus_to_phys' in file scope
  lib/swiotlb.c:156:28: warning: Calling weak function 'swiotlb_phys_to_bus' in file scope
  lib/swiotlb.c:167:30: warning: Calling weak function 'swiotlb_phys_to_bus' in file scope
  lib/swiotlb.c:168:28: warning: Calling weak function 'swiotlb_phys_to_bus' in file scope
  lib/swiotlb.c:204:35: warning: Calling weak function 'swiotlb_alloc_boot' in file scope
  lib/swiotlb.c:260:31: warning: Calling weak function 'swiotlb_alloc' in file scope
  lib/swiotlb.c:336:58: warning: Calling weak function 'swiotlb_arch_range_needs_mapping' in file scope
  lib/swiotlb.c:336:58: warning: Calling weak function 'swiotlb_arch_range_needs_mapping' in file scope

I bet there are others that I don't see just because I don't compile the 
code.

The appended trial sparse diff is against sparse -git as of a couple of 
days ago if anybody wants to run it themselves.

The _logical_ fix would be to add "noinline" to the definition of 
"__weak", but that's reported not to help. I think the bug may be in the 
assembler that pre-links the call if it sees it in file scope. Or maybe 
gcc doesn't honor noinline for empty functions. Whatever.

Regardless, it's a damn pain.

			Linus

---
 evaluate.c |    7 +++++++
 parse.c    |    7 ++++---
 symbol.h   |    3 ++-
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/evaluate.c b/evaluate.c
index f976645..0ae6c93 100644
--- a/evaluate.c
+++ b/evaluate.c
@@ -2744,6 +2744,13 @@ static int evaluate_symbol_call(struct expression *expr)
 	if (ctype->op && ctype->op->evaluate)
 		return ctype->op->evaluate(expr);
 
+	if (ctype->ctype.modifiers & MOD_WEAK) {
+		struct symbol *fn = ctype->ctype.base_type;
+
+		if (fn->stmt || fn->inline_stmt)
+			warning(expr->pos, "Calling weak function '%s' in file scope", show_ident(ctype->ident));
+	}
+
 	if (ctype->ctype.modifiers & MOD_INLINE) {
 		int ret;
 		struct symbol *curr = current_fn;
diff --git a/parse.c b/parse.c
index eb31871..1ea497f 100644
--- a/parse.c
+++ b/parse.c
@@ -289,6 +289,9 @@ static struct init_keyword {
 	{ "word",	NS_KEYWORD,	MOD_LONG,	.op = &mode_spec_op },
 	{ "__word__",	NS_KEYWORD,	MOD_LONG,	.op = &mode_spec_op },
 
+	{ "weak",	NS_KEYWORD,	MOD_WEAK,	.op = &attr_mod_op },
+	{ "__weak__",	NS_KEYWORD,	MOD_WEAK,	.op = &attr_mod_op },
+
 	/* Ignored attributes */
 	{ "nothrow",	NS_KEYWORD,	.op = &ignore_attr_op },
 	{ "__nothrow",	NS_KEYWORD,	.op = &ignore_attr_op },
@@ -317,8 +320,6 @@ static struct init_keyword {
 	{ "__sentinel__",	NS_KEYWORD,	.op = &ignore_attr_op },
 	{ "regparm",	NS_KEYWORD,	.op = &ignore_attr_op },
 	{ "__regparm__",	NS_KEYWORD,	.op = &ignore_attr_op },
-	{ "weak",	NS_KEYWORD,	.op = &ignore_attr_op },
-	{ "__weak__",	NS_KEYWORD,	.op = &ignore_attr_op },
 	{ "alias",	NS_KEYWORD,	.op = &ignore_attr_op },
 	{ "__alias__",	NS_KEYWORD,	.op = &ignore_attr_op },
 	{ "pure",	NS_KEYWORD,	.op = &ignore_attr_op },
@@ -1582,7 +1583,7 @@ static struct statement *start_function(struct symbol *sym)
 	start_function_scope();
 	ret = alloc_symbol(sym->pos, SYM_NODE);
 	ret->ctype = sym->ctype.base_type->ctype;
-	ret->ctype.modifiers &= ~(MOD_STORAGE | MOD_CONST | MOD_VOLATILE | MOD_INLINE | MOD_ADDRESSABLE | MOD_NOCAST | MOD_NODEREF | MOD_ACCESSED | MOD_TOPLEVEL);
+	ret->ctype.modifiers &= ~(MOD_STORAGE | MOD_CONST | MOD_VOLATILE | MOD_INLINE | MOD_ADDRESSABLE | MOD_NOCAST | MOD_NODEREF | MOD_ACCESSED | MOD_TOPLEVEL | MOD_WEAK);
 	ret->ctype.modifiers |= (MOD_AUTO | MOD_REGISTER);
 	bind_symbol(ret, &return_ident, NS_ITERATOR);
 	stmt->ret = ret;
diff --git a/symbol.h b/symbol.h
index c4d7f28..b3fcccd 100644
--- a/symbol.h
+++ b/symbol.h
@@ -185,6 +185,7 @@ struct symbol {
 #define MOD_LONGLONG	0x0800
 
 #define MOD_TYPEDEF	0x1000
+#define MOD_WEAK	0x2000
 
 #define MOD_INLINE	0x40000
 #define MOD_ADDRESSABLE	0x80000
@@ -205,7 +206,7 @@ struct symbol {
 #define MOD_BITWISE	0x80000000
 
 #define MOD_NONLOCAL	(MOD_EXTERN | MOD_TOPLEVEL)
-#define MOD_STORAGE	(MOD_AUTO | MOD_REGISTER | MOD_STATIC | MOD_EXTERN | MOD_INLINE | MOD_TOPLEVEL | MOD_FORCE)
+#define MOD_STORAGE	(MOD_AUTO | MOD_REGISTER | MOD_STATIC | MOD_EXTERN | MOD_INLINE | MOD_TOPLEVEL | MOD_FORCE | MOD_WEAK)
 #define MOD_SIGNEDNESS	(MOD_SIGNED | MOD_UNSIGNED | MOD_EXPLICITLY_SIGNED)
 #define MOD_SPECIFIER	(MOD_CHAR | MOD_SHORT | MOD_LONG | MOD_LONGLONG | MOD_SIGNEDNESS)
 #define MOD_SIZE	(MOD_CHAR | MOD_SHORT | MOD_LONG | MOD_LONGLONG)
--
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Cc: Roland Dreier <rdreier@cisco.com>, Ingo Molnar <mingo@elte.hu>,
	Ian Campbell <ian.campbell@citrix.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
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> 
> I guess I could make a sparse rule for this, but nobody seems to run or 
> care about sparse anyway. Sad.

There is some increased janitorial effort recently.
Try to grep for [Ss]+parse in the shortlog for the last couple
of months.

	Sam

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Subject: Re: [PATCH] parisc: fix module loading failure of large kernel
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On Wed, 2008-12-31 at 09:29 -0800, Linus Torvalds wrote:
> 
> On Wed, 31 Dec 2008, Helge Deller wrote:
> >
> > [PATCH 1/2] module.c: fix module loading failure of large kernel modules
> > 
> > When creating the final layout of a kernel module in memory, allow the
> > module loader to reserve some additional memory in front of a given section.
> > This is currently only needed for the parisc port which needs to put the
> > stub entries there to fulfill the 17/22bit PCREL relocations with large
> > kernel modules like xfs.
> > 
> > Differences of this patch to previous versions:
> > - added weak funtion arch_module_section_size()
> 
> This doesn't work.
> 
> We've had this bug several times now, and one of them just very recently.
> 
> Some gcc versions will inline weak functions if they are in scope - even 
> if there is a non-weak function somewhere else. So you MUST NOT have the 
> weak definition in the same file (or indirectly called through some inline 
> functions in a header file) as the call. Because if you do, then any user 
> with the wrong version of gcc will get the weak function semantics, even 
> if it was meant to be overridden by something else.

Um, but we got told to use all these weak functions instead of the
ARCH_HAS... defines.  They certainly litter the x86 boot code.  The
standard pattern was to put the weak function in the file where it was
used, which is what you're now saying will miscompile.

Which gcc versions are the problem?  Because it's going to be a bit
painful catching and killing all the problems ... it might be better
just to patch the master kernel makefile to refuse to build with the
offending gcc versions.

James


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Subject: Re: [PATCH] parisc: fix module loading failure of large kernel
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On Wed, 31 Dec 2008 09:47:19 -0800 (PST) Linus Torvalds <torvalds@linux-foundation.org> wrote:

> 
> > (I just notice this because I saw the warning about swiotlb_alloc_boot()
> > not being __init but calling __alloc_bootmem_low and so I looked at the
> > code yesterday)
> 
> Lucky us. What's nasty about this is that most developers probably have 
> updated versions of gcc, and are then surprised when some odd user has 
> insane behavior that doesn't match the source code - because the compiler 
> did something unexpected.

Adrian claimed that it was gcc-4.1.0 and 4.1.1 only.  He proposed
banning them: http://lkml.org/lkml/2008/8/5/444

> I guess I could make a sparse rule for this, but nobody seems to run or 
> care about sparse anyway. Sad.

No, there are some people who regularly run sparse and fix stuff.  Pending
things here include:

y:/usr/src/25> grep sparse series 
input-ads7846c-sparse-lock-annotation.patch
hugetlb-fix-sparse-warnings.patch
lib-fix-sparse-shadowed-variable-warning.patch
lib-proportionsc-trivial-sparse-lock-annotation.patch
nvidia-fix-sparse-warnings.patch
viafb-fix-sparse-warnings.patch
pm3fb-fix-sparse-warning.patch
neofb-fix-sparse-warnings.patch
i810-fix-sparse-warnings.patch
intelfb-fix-sparse-warnings.patch

Which is a good way for it to be used.
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On Wed, 31 Dec 2008, Andrew Morton wrote:
> 
> Adrian claimed that it was gcc-4.1.0 and 4.1.1 only.  He proposed
> banning them: http://lkml.org/lkml/2008/8/5/444

If it really is just those releases, then yes, considering the number of 
cases we apparently have, and considering how ugly it is in some cases to 
move the weak function anywhere else, maybe banning those versions is the 
proper thing to do.

It probably won't hurt very many people - yeah, some people will be forced 
to upgrade, but I have this memory of early 4.1 having had other bugs 
anyway, so it's probably a good idea.

		Linus
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Subject: Re: [PATCH] parisc: fix module loading failure of large kernel
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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 31 Dec 2008 13:22:53 -0800 (PST)

> On Wed, 31 Dec 2008, Andrew Morton wrote:
> > 
> > Adrian claimed that it was gcc-4.1.0 and 4.1.1 only.  He proposed
> > banning them: http://lkml.org/lkml/2008/8/5/444
> 
> If it really is just those releases, then yes, considering the number of 
> cases we apparently have, and considering how ugly it is in some cases to 
> move the weak function anywhere else, maybe banning those versions is the 
> proper thing to do.
> 
> It probably won't hurt very many people - yeah, some people will be forced 
> to upgrade, but I have this memory of early 4.1 having had other bugs 
> anyway, so it's probably a good idea.

I think this is probably the best way to handle this.
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On Thursday 01 January 2009 03:59:36 Linus Torvalds wrote:
> 
> On Wed, 31 Dec 2008, Helge Deller wrote:
> >
> > [PATCH 1/2] module.c: fix module loading failure of large kernel modules
> > 
> > When creating the final layout of a kernel module in memory, allow the
> > module loader to reserve some additional memory in front of a given section.
> > This is currently only needed for the parisc port which needs to put the
> > stub entries there to fulfill the 17/22bit PCREL relocations with large
> > kernel modules like xfs.
> > 
> > Differences of this patch to previous versions:
> > - added weak funtion arch_module_section_size()
> 
> This doesn't work.
> 
> We've had this bug several times now, and one of them just very recently.
> 
> Some gcc versions will inline weak functions if they are in scope

Ah, someone hit this elsewhere and thought this was an arch-specific bug.
Any chance we can just kill those compiler versions and move on with our
lives?  4.1.3 definitely doesn't have the problem.

> We don't write out that whole "__attribute__" crud.

I think what you mean is "I prefer __weak".  Which is fine, and not
trivially disprovable by grep.

It's a gratuitous kernelism, but it's an inoffensive one.
Rusty.
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From: Rusty Russell <rusty@rustcorp.com.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: fix module loading failure of large kernel modules (take 4)
Date: Thu, 1 Jan 2009 11:22:00 +1030
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Approved: news@gmane.org
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Cc: "linux-parisc" <linux-parisc@vger.kernel.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Randolph Chung <randolph@tausq.org>,
	Linus <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	John David Anglin <dave@hiauly1.hia.nrc.ca>
To: Helge Deller <deller@gmx.de>
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On Thursday 01 January 2009 00:43:56 Helge Deller wrote:
> Rusty Russell wrote:
> > Not quite what I had in mind... let me show you:
> > ...
> > Otherwise I'd have called it "arch_module_extra_size()".
> 
> This would mean that I can increase the section size in the arch-specific function
> by returning a bigger value than sh_size.
> This would give me space at the end of the section, but not at the beginning 
> (which is what I need), as sh_entsize (the offset into memory) will stay the 
> same as before.

Ah, OK.  I assumed that extra room at the end was sufficient.

So I've taken your previous patch and renamed the function to
arch_mod_section_prepend().  If we decide not to kill those bad gcc versions,
I'll stick it in some other random file (lib/weak.c?  Blech...)

BTW, this is very late for this merge window.  I would have liked to see
this a month ago :(

Subject: module: fix module loading failure of large kernel modules for parisc
Date: Wed, 31 Dec 2008 12:31:18 +0100
From: Helge Deller <deller@gmx.de>

When creating the final layout of a kernel module in memory, allow the
module loader to reserve some additional memory in front of a given section.
This is currently only needed for the parisc port which needs to put the
stub entries there to fulfill the 17/22bit PCREL relocations with large
kernel modules like xfs.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (renamed fn)

diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -12,6 +12,9 @@ int module_frob_arch_sections(Elf_Ehdr *
 			      Elf_Shdr *sechdrs,
 			      char *secstrings,
 			      struct module *mod);
+
+/* Additional bytes needed by arch in front of individual sections */
+unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);
 
 /* Allocator used for allocating struct module, core sections and init
    sections.  Returns NULL on failure. */
diff --git a/kernel/module.c b/kernel/module.c
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1588,11 +1588,21 @@ static int simplify_symbols(Elf_Shdr *se
 	return ret;
 }
 
+/* Additional bytes needed by arch in front of individual sections */
+unsigned int __weak arch_mod_section_prepend(struct module *mod,
+					     unsigned int section)
+{
+	/* default implementation just returns zero */
+	return 0;
+}
+
 /* Update size with this section: return offset. */
-static long get_offset(unsigned int *size, Elf_Shdr *sechdr)
+static long get_offset(struct module *mod, unsigned int *size,
+		       Elf_Shdr *sechdr, unsigned int section)
 {
 	long ret;
 
+	*size += arch_mod_section_prepend(mod, section);
 	ret = ALIGN(*size, sechdr->sh_addralign ?: 1);
 	*size = ret + sechdr->sh_size;
 	return ret;
@@ -1632,7 +1642,7 @@ static void layout_sections(struct modul
 			    || strncmp(secstrings + s->sh_name,
 				       ".init", 5) == 0)
 				continue;
-			s->sh_entsize = get_offset(&mod->core_size, s);
+			s->sh_entsize = get_offset(mod, &mod->core_size, s, i);
 			DEBUGP("\t%s\n", secstrings + s->sh_name);
 		}
 		if (m == 0)
@@ -1650,7 +1660,7 @@ static void layout_sections(struct modul
 			    || strncmp(secstrings + s->sh_name,
 				       ".init", 5) != 0)
 				continue;
-			s->sh_entsize = (get_offset(&mod->init_size, s)
+			s->sh_entsize = (get_offset(mod, &mod->init_size, s, i)
 					 | INIT_OFFSET_MASK);
 			DEBUGP("\t%s\n", secstrings + s->sh_name);
 		}
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From - Thu Nov 08 21:03:19 2018
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From: Jeremy Fitzhardinge <jeremy@goop.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: fix module loading failure of large kernel modules
 (take 4)
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Cc: Helge Deller <deller@gmx.de>,
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	Linux Kernel Development <linux-kernel@vger.kernel.org>,
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	Randolph Chung <randolph@tausq.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	John David Anglin <dave@hiauly1.hia.nrc.ca>
To: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds wrote:
> Some gcc versions will inline weak functions if they are in scope - even 
> if there is a non-weak function somewhere else. So you MUST NOT have the 
> weak definition in the same file (or indirectly called through some inline 
> functions in a header file) as the call. Because if you do, then any user 
> with the wrong version of gcc will get the weak function semantics, even 
> if it was meant to be overridden by something else.
>   

Yes.  I think this behaviour is considered to be desperately broken by 
the gcc developers and has been fixed in all recent gccs.  There are a 
couple of broken versions, and there have been patches floating around 
to just refuse to use them; otherwise __weak is effectively unusable.  
(Ah, I see Adrian has posted it again and everyone agrees with it.)

On the other hand, I have seen a couple of instances of "inline __weak" 
which is insane, but I don't know if gcc does anything crazy with it, or 
if its common enough to bother warning about.

    J
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: uid/gid issues on 2.6.26-rc2
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Cc: Thibaut VARENE <T-Bone@parisc-linux.org>,
	linux-parisc@vger.kernel.org
To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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John David Anglin wrote:
> On Sun, 18 May 2008, Thibaut VARENE wrote:
> 
>> Then, checking auth.log, I spotted a few very surprising things:
>>
>> May 18 09:15:04 mkhppa3 sshd[1265]: Invalid user varenet from 147.215.7.200
>> May 18 09:15:04 mkhppa3 sshd[1265]: Failed none for invalid user
>> varenet from 147.215.7.200 port 58220 ssh2
> 
> I have seen this today testing 2.6.28 (32-bit UP).  The problem is also
> present in postfix:
> 
> dave@hiauly6:/var/log$ less mail.err
> Dec 27 12:45:41 hiauly6 postfix/sendmail[16726]: fatal: file /etc/postfix/main.cf: parameter mail_owner: unknown user name value: postfix
> 
> The only place this can occur is here:
> 
> static void check_mail_owner(void)
> {
>     struct passwd *pwd;
> 
>     if ((pwd = getpwnam(var_mail_owner)) == 0)
> 	msg_fatal("file %s/%s: parameter %s: unknown user name value: %s",
> 		  var_config_dir, MAIN_CONF_FILE,
> 		  VAR_MAIL_OWNER, var_mail_owner);
> 
> So, the problem is with getpwnam.  I don't see this with 2.6.22.19, so
> the problem is likely a syscall issue.  These seem to be the syscalls
> that directly relate to the getpwnam call:
> 
> open("/lib/libnss_files.so.2", O_RDONLY) = 3
> read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0$\f\0\0\0004\0"..., 512) = 512
> fstat64(3, {st_mode=0, st_size=0, ...}) = 0
> mmap(NULL, 52324, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40b92000
> mmap(0x40b9e000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xb000) = 0x40b9e000
> close(3)                                = 0
> munmap(0x4051b000, 30889)               = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40006000
> open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 3
> fcntl64(3, F_GETFD)                     = 0x1 (flags FD_CLOEXEC)
> _llseek(3, 0, [0], SEEK_CUR)            = 0
> fstat64(3, {st_mode=0, st_size=0, ...}) = 0
> mmap2(NULL, 1557, PROT_READ, MAP_SHARED, 3, 0) = 0x407ae000
> _llseek(3, 1557, [1557], SEEK_SET)      = 0
> munmap(0x407ae000, 1557)                = 0
> close(3)                                = 0
> exit_group(0)                           = ?
> 
> The failure appears random.  I think the problem occurs shortly after
> forking.  It doesn't seem to be present in the 64-bit SMP 2.6.28 test
> kernel that I'm testing.

I think your assumption that it is related to fork might be correct.
I don't see the uid/gid issues, but instead very often when I ssh the first
time into the 32bit kernel of a parisc box this message:
[deller@halden deller]$ ssh c3000 -Xl root
ssh_exchange_identification: Connection closed by remote host

But the second try suddenly works:
[deller@halden deller]$ ssh c3000 -Xl root
Password:

It appears random as well, and since I think sshd forks itself, it could
be that we have some fork()-problem...

Helge
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: fix module loading failure of large kernel modules
 (take 4)
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Cc: linux-parisc <linux-parisc@vger.kernel.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Randolph Chung <randolph@tausq.org>,
	Linus <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	John David Anglin <dave@hiauly1.hia.nrc.ca>
To: Rusty Russell <rusty@rustcorp.com.au>
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Rusty Russell wrote:
> On Thursday 01 January 2009 00:43:56 Helge Deller wrote:
>> Rusty Russell wrote:
>>> Not quite what I had in mind... let me show you:
>>> ...
>>> Otherwise I'd have called it "arch_module_extra_size()".
>> This would mean that I can increase the section size in the arch-specific function
>> by returning a bigger value than sh_size.
>> This would give me space at the end of the section, but not at the beginning 
>> (which is what I need), as sh_entsize (the offset into memory) will stay the 
>> same as before.
> 
> Ah, OK.  I assumed that extra room at the end was sufficient.
> 
> So I've taken your previous patch and renamed the function to
> arch_mod_section_prepend().  

Thanks a lot !!!!
Patch below is ok and I'll adjust the parisc-specific patch
acordingly.

> If we decide not to kill those bad gcc versions,
> I'll stick it in some other random file (lib/weak.c?  Blech...)

Andrew has pulled in the patch from Adrian in his -mm tree, so we should
be safe now.

> BTW, this is very late for this merge window.  I would have liked to see
> this a month ago :(

Yes, sorry, I didn't had a patch available earlier.
I hope it's still in-time though, esp. as this will fix one of our longest
outstanding bugs on parisc and is quite important for us.

Thanks,
Helge


> Subject: module: fix module loading failure of large kernel modules for parisc
> Date: Wed, 31 Dec 2008 12:31:18 +0100
> From: Helge Deller <deller@gmx.de>
> 
> When creating the final layout of a kernel module in memory, allow the
> module loader to reserve some additional memory in front of a given section.
> This is currently only needed for the parisc port which needs to put the
> stub entries there to fulfill the 17/22bit PCREL relocations with large
> kernel modules like xfs.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (renamed fn)
> 
> diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
> --- a/include/linux/moduleloader.h
> +++ b/include/linux/moduleloader.h
> @@ -12,6 +12,9 @@ int module_frob_arch_sections(Elf_Ehdr *
>  			      Elf_Shdr *sechdrs,
>  			      char *secstrings,
>  			      struct module *mod);
> +
> +/* Additional bytes needed by arch in front of individual sections */
> +unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);
>  
>  /* Allocator used for allocating struct module, core sections and init
>     sections.  Returns NULL on failure. */
> diff --git a/kernel/module.c b/kernel/module.c
> --- a/kernel/module.c
> +++ b/kernel/module.c
> @@ -1588,11 +1588,21 @@ static int simplify_symbols(Elf_Shdr *se
>  	return ret;
>  }
>  
> +/* Additional bytes needed by arch in front of individual sections */
> +unsigned int __weak arch_mod_section_prepend(struct module *mod,
> +					     unsigned int section)
> +{
> +	/* default implementation just returns zero */
> +	return 0;
> +}
> +
>  /* Update size with this section: return offset. */
> -static long get_offset(unsigned int *size, Elf_Shdr *sechdr)
> +static long get_offset(struct module *mod, unsigned int *size,
> +		       Elf_Shdr *sechdr, unsigned int section)
>  {
>  	long ret;
>  
> +	*size += arch_mod_section_prepend(mod, section);
>  	ret = ALIGN(*size, sechdr->sh_addralign ?: 1);
>  	*size = ret + sechdr->sh_size;
>  	return ret;
> @@ -1632,7 +1642,7 @@ static void layout_sections(struct modul
>  			    || strncmp(secstrings + s->sh_name,
>  				       ".init", 5) == 0)
>  				continue;
> -			s->sh_entsize = get_offset(&mod->core_size, s);
> +			s->sh_entsize = get_offset(mod, &mod->core_size, s, i);
>  			DEBUGP("\t%s\n", secstrings + s->sh_name);
>  		}
>  		if (m == 0)
> @@ -1650,7 +1660,7 @@ static void layout_sections(struct modul
>  			    || strncmp(secstrings + s->sh_name,
>  				       ".init", 5) != 0)
>  				continue;
> -			s->sh_entsize = (get_offset(&mod->init_size, s)
> +			s->sh_entsize = (get_offset(mod, &mod->init_size, s, i)
>  					 | INIT_OFFSET_MASK);
>  			DEBUGP("\t%s\n", secstrings + s->sh_name);
>  		}
> 

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John David Anglin wrote:
>> On Mon, Dec 08, 2008 at 11:00:51AM -0500, Kyle McMartin wrote:
> Attached below is the change that I had.  Think this includes some
> additional locations to update.

Kyle,
in case you plan to include this patch from Dave in your linux-2.6 tree,
please DON'T INCLUDE this change to the "hilkbd.c" file:
  a/drivers/input/keyboard/hilkbd.c   2008-12-01 22:59:23.000000000 -0500
	-               printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%08lx\n", dev->hpa.start);
	+               printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%p\n", (void *)dev->hpa.start);

Reason:
I've sent another patch for hilkbd.c to the linux-input mailing list, 
which already includes this change (and I had forgotten about Dave's posting):
[PATCH] input/keyboard/hilkbd.c: fix crash when removing hilkbd module 
         http://permalink.gmane.org/gmane.linux.kernel.input/6266 
If you apply Dave's hilkbd changes, it may conflict if Linus pulls your parisc tree.
All other changes from Dave are OK.

Helge

PS: For the record, this are the other patches which I sent to linux-input:
[PATCH] input/HIL drivers: add MODULE_ALIAS() 
         http://permalink.gmane.org/gmane.linux.kernel.input/6267 
 
[PATCH] drivers/input/serio/hp_sdc.c: fix crash when removing hp_sdc module 
         http://permalink.gmane.org/gmane.linux.kernel.input/6268 
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Subject: Re: [PATCH] parisc: fix module loading failure of large kernel
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Cc: Andrew Morton <akpm@linux-foundation.org>,
	Roland Dreier <rdreier@cisco.com>,
	Ian Campbell <ian.campbell@citrix.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
	Helge Deller <deller@gmx.de>,
	Rusty Russell <rusty@rustcorp.com.au>,
	linux-parisc <linux-parisc@vger.kernel.org>,
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	Randolph Chung <randolph@tausq.org>,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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* Linus Torvalds <torvalds@linux-foundation.org> wrote:

> 
> 
> On Wed, 31 Dec 2008, Andrew Morton wrote:
> > 
> > Adrian claimed that it was gcc-4.1.0 and 4.1.1 only.  He proposed
> > banning them: http://lkml.org/lkml/2008/8/5/444
> 
> If it really is just those releases, then yes, considering the number of 
> cases we apparently have, and considering how ugly it is in some cases 
> to move the weak function anywhere else, maybe banning those versions is 
> the proper thing to do.
> 
> It probably won't hurt very many people - yeah, some people will be 
> forced to upgrade, but I have this memory of early 4.1 having had other 
> bugs anyway, so it's probably a good idea.

That would be _really_ nice to do IMHO: in many cases putting the __weak 
definition into same-file scope with a call site is a natural approach. I 
think that's how we ended up having so many instances of that bug. When 
you use __weak as a 'default implementation' for some function, then it's 
very natural to put it into the same file that also uses it.

It goes into separate, inactive scope only in a few special cases: such as 
when it's some library function that can be overriden by the architecture. 
But if it's some non-libray kernel code then the usage site is close to 
the definition site.

If you look at most of the __weak fixes they IMO actually turned clean 
code into less clean code: they detached some natural clustering of 
definition and callsite.

And __weak is very elegant IMO, it can avoid a lot of #ifdefs and can be 
used to self-document architecture interfaces - so it would be nice to 
make it always work, regardless of the callsite's scope.

	Ingo
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To: Ingo Molnar <mingo@elte.hu>
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On Thu, 1 Jan 2009 15:24:01 +0100 Ingo Molnar <mingo@elte.hu> wrote:

> * Linus Torvalds <torvalds@linux-foundation.org> wrote:
> 
> > 
> > 
> > On Wed, 31 Dec 2008, Andrew Morton wrote:
> > > 
> > > Adrian claimed that it was gcc-4.1.0 and 4.1.1 only.  He proposed
> > > banning them: http://lkml.org/lkml/2008/8/5/444
> > 
> > If it really is just those releases, then yes, considering the number of 
> > cases we apparently have, and considering how ugly it is in some cases 
> > to move the weak function anywhere else, maybe banning those versions is 
> > the proper thing to do.
> > 
> > It probably won't hurt very many people - yeah, some people will be 
> > forced to upgrade, but I have this memory of early 4.1 having had other 
> > bugs anyway, so it's probably a good idea.
> 
> That would be _really_ nice to do IMHO

I wonder if we should do it in -stable too.  Probably yes.
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> > The failure appears random.  I think the problem occurs shortly after
> > forking.  It doesn't seem to be present in the 64-bit SMP 2.6.28 test
> > kernel that I'm testing.
> 
> I think your assumption that it is related to fork might be correct.

I tried tracing what happens with sshd when a connection occurs but
I didn't learn much.  The uid/gid authentication uses compat mode on
the system where I see this problem.  It seems as if the authentication
setup is passed across the fork as I don't see any access to /etc/passwd
or /etc/shadow (password authentication is being used in this case).

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: resource_size_t printk woes...
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Hi Helge,

I just want to say that I like Kyle's approach.  There already exists
the 'R' modifier for %p.  This outputs a pair of resource_size_t values.
We just need a modifier to handle the printing of the start value in
a manner similar to that for the 'R' modifier.  So, I think this issue
needs another go around.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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John David Anglin wrote:
> Hi Helge,
> 
> I just want to say that I like Kyle's approach.  There already exists
> the 'R' modifier for %p.  This outputs a pair of resource_size_t values.
> We just need a modifier to handle the printing of the start value in
> a manner similar to that for the 'R' modifier.  So, I think this issue
> needs another go around.

Sadly none of the approaches is really nice, as with Kyle's approach we'd
loose the type-checking of printk.
But yes, maybe that's the best choice of all bad ones.
Will you try/come up with a patch to vsprintf.c?

Helge
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Subject: Re: resource_size_t printk woes...
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> John David Anglin wrote:
> > Hi Helge,
> > 
> > I just want to say that I like Kyle's approach.  There already exists
> > the 'R' modifier for %p.  This outputs a pair of resource_size_t values.
> > We just need a modifier to handle the printing of the start value in
> > a manner similar to that for the 'R' modifier.  So, I think this issue
> > needs another go around.
> 
> Sadly none of the approaches is really nice, as with Kyle's approach we'd
> loose the type-checking of printk.
> But yes, maybe that's the best choice of all bad ones.
> Will you try/come up with a patch to vsprintf.c?

I was think of something like this (untested):

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index a013bbc..3c47705 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -551,8 +551,6 @@ static char *symbol_string(char *buf, char *end, void *ptr, int field_width, int
 #endif
 }
 
-static char *resource_string(char *buf, char *end, struct resource *res, int field_width, int precision, int flags)
-{
 #ifndef IO_RSRC_PRINTK_SIZE
 #define IO_RSRC_PRINTK_SIZE	4
 #endif
@@ -561,6 +559,8 @@ static char *resource_string(char *buf, char *end, struct resource *res, int fie
 #define MEM_RSRC_PRINTK_SIZE	8
 #endif
 
+static char *resource_string(char *buf, char *end, struct resource *res, int field_width, int precision, int flags)
+{
 	/* room for the actual numbers, the two "0x", -, [, ] and the final zero */
 	char sym[4*sizeof(resource_size_t) + 8];
 	char *p = sym, *pend = sym + sizeof(sym);
@@ -581,6 +581,24 @@ static char *resource_string(char *buf, char *end, struct resource *res, int fie
 	return string(buf, end, sym, field_width, precision, flags);
 }
 
+static char *resource_start_string(char *buf, char *end, struct resource *res, int field_width, int precision, int flags)
+{
+	/* room for the number, the "0x", and the final zero */
+	char sym[2*sizeof(resource_size_t) + 3];
+	char *p = sym, *pend = sym + sizeof(sym);
+	int size = -1;
+
+	if (res->flags & IORESOURCE_IO)
+		size = IO_RSRC_PRINTK_SIZE;
+	else if (res->flags & IORESOURCE_MEM)
+		size = MEM_RSRC_PRINTK_SIZE;
+
+	p = number(p, pend, res->start, 16, size, -1, SPECIAL | SMALL | ZEROPAD);
+	*p = 0;
+
+	return string(buf, end, sym, field_width, precision, flags);
+}
+
 /*
  * Show a '%p' thing.  A kernel extension is that the '%p' is followed
  * by an extra set of alphanumeric characters that are extended format
@@ -592,6 +610,7 @@ static char *resource_string(char *buf, char *end, struct resource *res, int fie
  * - 'S' For symbolic direct pointers
  * - 'R' For a struct resource pointer, it prints the range of
  *       addresses (not the name nor the flags)
+ * - 'Z' For a struct resource pointer, it prints the start address
  *
  * Note: The difference between 'S' and 'F' is that on ia64 and ppc64
  * function pointers are really function descriptors, which contain a
@@ -607,6 +626,8 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr, int field
 		return symbol_string(buf, end, ptr, field_width, precision, flags);
 	case 'R':
 		return resource_string(buf, end, ptr, field_width, precision, flags);
+	case 'Z':
+		return resource_start_string(buf, end, ptr, field_width, precision, flags);
 	}
 	flags |= SMALL;
 	if (field_width == -1) {

So, one would just pass the resource pointer.  This has the advantage that
it handles 4 and 8 hex digits when appropriate.  However, it is limited to
just printing the start address.  In most cases, that's all that is done.

The 'R' modifier can be used to print both the start and end values.  There
are a few cases where a range is printed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, 01 Jan 2009, John David Anglin wrote:

> I was think of something like this (untested):

While trying to test this, I hit the following with Kyle's 2.6.28-rc7
parisc tree:

Debian GNU/Linux 5.0 mx3210 ttyS1

mx3210 login: Backtrace:
 [<000000004014240c>] dequeue_entity+0x34/0x190
 [<0000000040144154>] __set_se_shares+0x74/0xb8
 [<0000000040146674>] tg_shares_up+0x214/0x2c0
 [<000000004013e254>] walk_tg_tree+0xac/0x110
 [<0000000040148ea8>] update_shares+0x78/0x90
 [<0000000040149198>] try_to_wake_up+0x2d8/0x2e0
 [<0000000040149234>] wake_up_process+0x24/0x38
 [<000000004018962c>] softlockup_tick+0x234/0x250
 [<000000004015fe68>] run_local_timers+0x38/0x48
 [<000000004015ff48>] update_process_times+0x50/0xc8
 [<000000004011d208>] timer_interrupt+0x208/0x210
 [<0000000040189f30>] handle_IRQ_event+0x70/0xd0
 [<000000004018a05c>] __do_IRQ+0xcc/0x280
 [<000000004011d8d0>] do_cpu_irq_mask+0x1a8/0x298
 [<0000000040104074>] intr_return+0x0/0x4
 [<000000004011d208>] timer_interrupt+0x208/0x210


Bad Address (null pointer deref?): Code=15 regs=000000007f54dc30 (Addr=c000000053c33ffd)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001100000000000001110 Tainted: G        W 
r00-03  000000000806000e 000000007f54daf0 000000004014240c 000000007f54db90
r04-07  00000000405b86a0 e840d00053c33f8d e840d00053c33f8d e840d00053c33f8d
r08-11  0000000000000010 0000000000000002 000000007f54da20 000000007ed15178
r12-15  0000000000001000 0000000000000400 0000000000000400 0000000000000001
r16-19  000000004276c1d0 00000000405baea0 0000000000001001 000000007fb1f740
r20-23  0000000000000000 0000000080080000 0000000000000000 0000000000000000
r24-27  0000000000000000 000000004013e254 e840d00053c33f8d 00000000405b86a0
r28-31  00000000081b0244 000000007f54db60 000000007f54dc30 000000007fb1f740
sr00-03  0000000003840000 0000000000000000 0000000000000000 0000000003840000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004013e550 000000004013e554
 IIR: 535c00e0    ISR: 000000002840d000  IOR: c000000053c33ffd
 CPU:        2   CR30: 000000007f524000 CR31: 0000000040554000
ORIG_R28: d84156c5635688c0
IAOQ[0]: update_curr+0x28/0x150
IAOQ[1]: update_curr+0x2c/0x150
RP(r2): dequeue_entity+0x34/0x190

000000004013e528 <update_curr>:
    4013e528:   08 03 02 41     copy r3,r1
    4013e52c:   0f c2 12 c1     std rp,-10(sp)
    4013e530:   08 1e 02 43     copy sp,r3
    4013e534:   73 c1 01 48     std,ma r1,a0(sp)
    4013e538:   70 66 00 30     std r6,18(r3)
    4013e53c:   08 1a 02 46     copy r26,r6
    4013e540:   0c 68 12 d0     std r8,8(r3)
    4013e544:   70 67 00 20     std r7,10(r3)
    4013e548:   70 65 00 40     std r5,20(r3)
    4013e54c:   70 64 00 50     std r4,28(r3)
    4013e550:   53 5c 00 e0     ldd 70(r26),ret0

Not sure what's going on with r26.

Config attached.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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From - Thu Nov 08 21:03:21 2018
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X-Mozilla-Keys:                                                                                 
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: resource_size_t printk woes...
Date: Thu, 1 Jan 2009 18:39:36 -0500 (EST)
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Cc: deller@gmx.de, kyle@infradead.org, linux-parisc@vger.kernel.org
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In-Reply-To: <20090101223750.GA21914@hiauly1.hia.nrc.ca> from "John David Anglin" at Jan 1, 2009 05:37:51 pm
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> On Thu, 01 Jan 2009, John David Anglin wrote:
> 
> > I was think of something like this (untested):
> 
> While trying to test this, I hit the following with Kyle's 2.6.28-rc7
> parisc tree:
> 
> Debian GNU/Linux 5.0 mx3210 ttyS1

And other one:

mx3210 login: Slab corruption: names_cache start=000000007cc71000, len=4096
000: 00 00 00 00 7f 45 cb c0 00 00 00 00 40 5b 86 a0
010: 00 00 00 00 00 00 00 02 00 00 00 00 7f 41 0d 00
020: 00 00 00 00 7f 48 01 18 00 00 00 00 00 00 00 01
030: 00 00 00 00 7f 45 b2 88 00 00 00 00 40 5e f8 a0
040: 00 00 00 00 00 10 36 64 00 00 00 00 00 00 00 00
050: 00 00 00 00 00 00 00 00 00 00 00 00 00 22 34 e4
Slab corruption: biovec-128 start=000000007cc7a308, len=2048
Redzone: 0x0/0x1812c.
Last user: [<000000007cc7a750>](0x7cc7a750)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 40 10 40 78
020: 00 00 00 00 40 10 40 7c 00 00 00 00 40 4f bb 00
030: 00 00 00 00 42 76 81 e0 00 00 00 00 42 76 70 40
040: 00 00 00 00 40 5b 86 a0 6b 6b 6b 6b 6b 6b 6b 6b
050: 00 00 00 00 00 00 00 00 00 00 00 00 03 c0 08 a1
Prev obj: start=000000007cc798d0, len=2048
Redzone: 0x0/0xff0804ff0f.
Last user: [<00000000405bcea0>](0x405bcea0)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 22 34 e4
010: 41 2e 84 80 00 00 00 00 00 00 00 00 00 1e 84 80
slab error in cache_alloc_debugcheck_after(): cache `biovec-128': double free, or memory outside object was overwritten
Backtrace:
 [<000000004011bd1c>] show_stack+0x14/0x20
 [<00000000401144f0>] dump_stack+0x18/0x28
 [<00000000401c65dc>] __slab_error+0x3c/0x48
 [<00000000401c6db0>] cache_alloc_debugcheck_after+0x190/0x308
 [<00000000401c91d8>] kmem_cache_alloc+0xd8/0x190
 [<000000004019552c>] mempool_alloc_slab+0x1c/0x28
 [<0000000040195720>] mempool_alloc+0x88/0x1b8
 [<00000000402039e0>] bvec_alloc_bs+0x88/0x138
 [<0000000040203b14>] bio_alloc_bioset+0x84/0x140
 [<0000000040203cf0>] bio_alloc+0x20/0x50
 [<00000000402086e4>] mpage_alloc+0x44/0xd0
 [<0000000040208c8c>] __mpage_writepage+0x41c/0x788
 [<000000004019c7ec>] write_cache_pages+0x33c/0x438
 [<0000000040208808>] mpage_writepages+0x48/0xb0
 [<00000000142ca3a4>] ext2_writepages+0x1c/0x28 [ext2]
 [<000000004019c974>] do_writepages+0x44/0x78

000000007cc7a300: redzone 1:0x0, redzone 2:0x1812c
------------[ cut here ]------------
kernel BUG at mm/slab.c:2895!

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Tainted: G        W 
r00-03  000000ff0804ff0e 00000000405baea0 00000000401c6b0c 000000007cc7a300
r04-07  00000000405b86a0 0000000000000000 000000007ed64740 d84156c5635688c0
r08-11  00000000404063c0 000000007cc7a2c0 00000000401955ac 00000000405c2ea0
r12-15  00000000405c0ea0 0000000040574f50 0000000000000000 000000004050bb80
r16-19  00000000405ba6a0 0000000000000000 00000000ffffffff 00000000000f6ab4
r20-23  000000006d207700 00000000001fa11d 00000000000f1c19 0000000066957700
r24-27  00000000401955ac 00000000001fa11d 000000007cc7a300 00000000405b86a0
r28-31  00000000000f6ab4 0000000040575500 0000000040575530 0000000000000003
sr00-03  00000000006c9800 0000000000000000 0000000000000000 00000000006c9800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401c6bb8 00000000401c6bbc
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000015d575538
 CPU:        0   CR30: 0000000040574000 CR31: 0000000040554000
ORIG_R28: 000000004058f6a0
IAOQ[0]: cache_free_debugcheck+0x360/0x3c8
IAOQ[1]: cache_free_debugcheck+0x364/0x3c8
RP(r2): cache_free_debugcheck+0x2b4/0x3c8
Backtrace:
 [<00000000401c733c>] kmem_cache_free+0x4c/0x150
 [<00000000401955ac>] mempool_free_slab+0x1c/0x28
 [<0000000040195690>] mempool_free+0xd8/0xe0
 [<0000000040204a30>] bio_free+0x40/0x90
 [<0000000040204a9c>] bio_fs_destructor+0x1c/0x28
 [<00000000402023f8>] bio_put+0x88/0xa0
 [<0000000040209b64>] mpage_end_io_write+0xcc/0x138
 [<00000000402024e0>] bio_endio+0x70/0x90
 [<000000004025bd60>] req_bio_endio+0xf8/0x158
 [<000000004025befc>] __end_that_request_first+0x13c/0x3f8
 [<000000004025c1f4>] end_that_request_data+0x3c/0xa8
 [<000000004025d058>] blk_end_io+0x38/0xf8
 [<000000004025d178>] blk_end_request+0x18/0x28
 [<00000000081183e4>] scsi_end_request+0x4c/0x110 [scsi_mod]
 [<0000000008118c8c>] scsi_io_completion+0x12c/0x538 [scsi_mod]
 [<000000000810ed44>] scsi_finish_command+0xd4/0x148 [scsi_mod]

Backtrace:
 [<000000004011bd1c>] show_stack+0x14/0x20
 [<00000000401144f0>] dump_stack+0x18/0x28
 [<000000004011c508>] die_if_kernel+0x138/0x240
 [<000000004011ce88>] handle_interruption+0x878/0x910
 [<00000000401c6bb8>] cache_free_debugcheck+0x360/0x3c8
 [<00000000401c733c>] kmem_cache_free+0x4c/0x150
 [<00000000401955ac>] mempool_free_slab+0x1c/0x28
 [<0000000040195690>] mempool_free+0xd8/0xe0
 [<0000000040204a30>] bio_free+0x40/0x90
 [<0000000040204a9c>] bio_fs_destructor+0x1c/0x28
 [<00000000402023f8>] bio_put+0x88/0xa0
 [<0000000040209b64>] mpage_end_io_write+0xcc/0x138
 [<00000000402024e0>] bio_endio+0x70/0x90
 [<000000004025bd60>] req_bio_endio+0xf8/0x158
 [<000000004025befc>] __end_that_request_first+0x13c/0x3f8
 [<000000004025c1f4>] end_that_request_data+0x3c/0xa8

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:21 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: resource_size_t printk woes...
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Cc: dave.anglin@nrc-cnrc.gc.ca, kyle@infradead.org,
	linux-parisc@vger.kernel.org
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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John David Anglin wrote:
>> On Thu, 01 Jan 2009, John David Anglin wrote:
>>
>>> I was think of something like this (untested):
>> While trying to test this, I hit the following with Kyle's 2.6.28-rc7
>> parisc tree:
>>
>> Debian GNU/Linux 5.0 mx3210 ttyS1
> 
> And other one:
> 
> mx3210 login: Slab corruption: names_cache start=000000007cc71000, len=4096
> 000: 00 00 00 00 7f 45 cb c0 00 00 00 00 40 5b 86 a0

Hi Dave,

telling you to try vanilla 2.6.28 was a stupid idea.
I forgot that I had exactly the same problem (slab corruption):
http://bugzilla.kernel.org/show_bug.cgi?id=11913
when I started the thread 
"2.6.28-rcX in pretty bad shape on parisc"
here on the list as well.

The solution for me was to use another default config.
James posted this one, which started to get everything working for me:
http://parisc-linux.org/~jejb/config-2.6.28-rc5-ion
Try this one instead (e.g. with Kyle's tree).

I assume something in your .config is different than what is in
James' .config. It would be interesting to know what it
is. I didn't checked further at that time.

Helge

> 010: 00 00 00 00 00 00 00 02 00 00 00 00 7f 41 0d 00
> 020: 00 00 00 00 7f 48 01 18 00 00 00 00 00 00 00 01
> 030: 00 00 00 00 7f 45 b2 88 00 00 00 00 40 5e f8 a0
> 040: 00 00 00 00 00 10 36 64 00 00 00 00 00 00 00 00
> 050: 00 00 00 00 00 00 00 00 00 00 00 00 00 22 34 e4
> Slab corruption: biovec-128 start=000000007cc7a308, len=2048
> Redzone: 0x0/0x1812c.
> Last user: [<000000007cc7a750>](0x7cc7a750)
> 000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 010: 00 00 00 00 00 00 00 00 00 00 00 00 40 10 40 78
> 020: 00 00 00 00 40 10 40 7c 00 00 00 00 40 4f bb 00
> 030: 00 00 00 00 42 76 81 e0 00 00 00 00 42 76 70 40
> 040: 00 00 00 00 40 5b 86 a0 6b 6b 6b 6b 6b 6b 6b 6b
> 050: 00 00 00 00 00 00 00 00 00 00 00 00 03 c0 08 a1
> Prev obj: start=000000007cc798d0, len=2048
> Redzone: 0x0/0xff0804ff0f.
> Last user: [<00000000405bcea0>](0x405bcea0)
> 000: 00 00 00 00 00 00 00 00 00 00 00 00 00 22 34 e4
> 010: 41 2e 84 80 00 00 00 00 00 00 00 00 00 1e 84 80
> slab error in cache_alloc_debugcheck_after(): cache `biovec-128': double free, or memory outside object was overwritten
> Backtrace:
>  [<000000004011bd1c>] show_stack+0x14/0x20
>  [<00000000401144f0>] dump_stack+0x18/0x28
>  [<00000000401c65dc>] __slab_error+0x3c/0x48
>  [<00000000401c6db0>] cache_alloc_debugcheck_after+0x190/0x308
>  [<00000000401c91d8>] kmem_cache_alloc+0xd8/0x190
>  [<000000004019552c>] mempool_alloc_slab+0x1c/0x28
>  [<0000000040195720>] mempool_alloc+0x88/0x1b8
>  [<00000000402039e0>] bvec_alloc_bs+0x88/0x138
>  [<0000000040203b14>] bio_alloc_bioset+0x84/0x140
>  [<0000000040203cf0>] bio_alloc+0x20/0x50
>  [<00000000402086e4>] mpage_alloc+0x44/0xd0
>  [<0000000040208c8c>] __mpage_writepage+0x41c/0x788
>  [<000000004019c7ec>] write_cache_pages+0x33c/0x438
>  [<0000000040208808>] mpage_writepages+0x48/0xb0
>  [<00000000142ca3a4>] ext2_writepages+0x1c/0x28 [ext2]
>  [<000000004019c974>] do_writepages+0x44/0x78
> 
> 000000007cc7a300: redzone 1:0x0, redzone 2:0x1812c
> ------------[ cut here ]------------
> kernel BUG at mm/slab.c:2895!
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001001111111100001110 Tainted: G        W 
> r00-03  000000ff0804ff0e 00000000405baea0 00000000401c6b0c 000000007cc7a300
> r04-07  00000000405b86a0 0000000000000000 000000007ed64740 d84156c5635688c0
> r08-11  00000000404063c0 000000007cc7a2c0 00000000401955ac 00000000405c2ea0
> r12-15  00000000405c0ea0 0000000040574f50 0000000000000000 000000004050bb80
> r16-19  00000000405ba6a0 0000000000000000 00000000ffffffff 00000000000f6ab4
> r20-23  000000006d207700 00000000001fa11d 00000000000f1c19 0000000066957700
> r24-27  00000000401955ac 00000000001fa11d 000000007cc7a300 00000000405b86a0
> r28-31  00000000000f6ab4 0000000040575500 0000000040575530 0000000000000003
> sr00-03  00000000006c9800 0000000000000000 0000000000000000 00000000006c9800
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401c6bb8 00000000401c6bbc
>  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000015d575538
>  CPU:        0   CR30: 0000000040574000 CR31: 0000000040554000
> ORIG_R28: 000000004058f6a0
> IAOQ[0]: cache_free_debugcheck+0x360/0x3c8
> IAOQ[1]: cache_free_debugcheck+0x364/0x3c8
> RP(r2): cache_free_debugcheck+0x2b4/0x3c8
> Backtrace:
>  [<00000000401c733c>] kmem_cache_free+0x4c/0x150
>  [<00000000401955ac>] mempool_free_slab+0x1c/0x28
>  [<0000000040195690>] mempool_free+0xd8/0xe0
>  [<0000000040204a30>] bio_free+0x40/0x90
>  [<0000000040204a9c>] bio_fs_destructor+0x1c/0x28
>  [<00000000402023f8>] bio_put+0x88/0xa0
>  [<0000000040209b64>] mpage_end_io_write+0xcc/0x138
>  [<00000000402024e0>] bio_endio+0x70/0x90
>  [<000000004025bd60>] req_bio_endio+0xf8/0x158
>  [<000000004025befc>] __end_that_request_first+0x13c/0x3f8
>  [<000000004025c1f4>] end_that_request_data+0x3c/0xa8
>  [<000000004025d058>] blk_end_io+0x38/0xf8
>  [<000000004025d178>] blk_end_request+0x18/0x28
>  [<00000000081183e4>] scsi_end_request+0x4c/0x110 [scsi_mod]
>  [<0000000008118c8c>] scsi_io_completion+0x12c/0x538 [scsi_mod]
>  [<000000000810ed44>] scsi_finish_command+0xd4/0x148 [scsi_mod]
> 
> Backtrace:
>  [<000000004011bd1c>] show_stack+0x14/0x20
>  [<00000000401144f0>] dump_stack+0x18/0x28
>  [<000000004011c508>] die_if_kernel+0x138/0x240
>  [<000000004011ce88>] handle_interruption+0x878/0x910
>  [<00000000401c6bb8>] cache_free_debugcheck+0x360/0x3c8
>  [<00000000401c733c>] kmem_cache_free+0x4c/0x150
>  [<00000000401955ac>] mempool_free_slab+0x1c/0x28
>  [<0000000040195690>] mempool_free+0xd8/0xe0
>  [<0000000040204a30>] bio_free+0x40/0x90
>  [<0000000040204a9c>] bio_fs_destructor+0x1c/0x28
>  [<00000000402023f8>] bio_put+0x88/0xa0
>  [<0000000040209b64>] mpage_end_io_write+0xcc/0x138
>  [<00000000402024e0>] bio_endio+0x70/0x90
>  [<000000004025bd60>] req_bio_endio+0xf8/0x158
>  [<000000004025befc>] __end_that_request_first+0x13c/0x3f8
>  [<000000004025c1f4>] end_that_request_data+0x3c/0xa8
> 
> Dave

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Subject: Re: [PATCH] parisc: fix module loading failure of large kernel
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Roland Dreier <rdreier@cisco.com>,
	Ian Campbell <ian.campbell@citrix.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
	Helge Deller <deller@gmx.de>,
	Rusty Russell <rusty@rustcorp.com.au>,
	linux-parisc <linux-parisc@vger.kernel.org>,
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	Kyle McMartin <kyle@mcmartin.ca>,
	Randolph Chung <randolph@tausq.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	John David Anglin <dave@hiauly1.hia.nrc.ca>
To: Sam Ravnborg <sam@ravnborg.org>
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* Sam Ravnborg <sam@ravnborg.org> wrote:

> > I guess I could make a sparse rule for this, but nobody seems to run 
> > or care about sparse anyway. Sad.
> 
> There is some increased janitorial effort recently. Try to grep for 
> [Ss]+parse in the shortlog for the last couple of months.

in the x86 space there's a lot of Sparse activity as well: a number of 
developers do systematic runs of Sparse and keep the tree Sparse-clean.

The moment this spreads to a critical mass of subsystems we can start 
automating it. (as i was able to automate the checking of -Werr builds on 
x86, with arbitrary random .config's)

	Ingo
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From: Ingo Molnar <mingo@elte.hu>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] kbuild: Disallow GCC 4.1.0 / 4.1.1
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To: David Miller <davem@davemloft.net>,
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* David Miller <davem@davemloft.net> wrote:

> From: Linus Torvalds <torvalds@linux-foundation.org>
> Date: Wed, 31 Dec 2008 13:22:53 -0800 (PST)
> 
> > On Wed, 31 Dec 2008, Andrew Morton wrote:
> > > 
> > > Adrian claimed that it was gcc-4.1.0 and 4.1.1 only.  He proposed
> > > banning them: http://lkml.org/lkml/2008/8/5/444
> > 
> > If it really is just those releases, then yes, considering the number 
> > of cases we apparently have, and considering how ugly it is in some 
> > cases to move the weak function anywhere else, maybe banning those 
> > versions is the proper thing to do.
> > 
> > It probably won't hurt very many people - yeah, some people will be 
> > forced to upgrade, but I have this memory of early 4.1 having had 
> > other bugs anyway, so it's probably a good idea.
> 
> I think this is probably the best way to handle this.

okay - to move this matter from the discussion-space to the 
solution-space, how about the patch below? (tested on x86 with a 
non-affected compiler version.)

	Ingo

-------------->
>From e6346e5ab54dcf12888a79dfd5402f5de09b3fad Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 2 Jan 2009 12:46:22 +0100
Subject: [PATCH] kbuild: Disallow GCC 4.1.0 / 4.1.1

Impact: fix crashes that can trigger if built with GCC 4.1.0 or 4.1.1

GCC 4.1.0 and 4.1.1 has a bug that can miscompile __weak symbols,
by inlining __weak functions into same-file call sites - breaking the
kernel if the __weak symbol is overriden later on.

In the past we tried to work around this problem by artificially
isolating call site and definition site - but these bugs tend to
pop up regularly:

 43a2563: sparseirq: move __weak symbols into separate compilation unit
 13a0c3c: sparseirq: work around compiler optimizing away __weak functions

And Linus has extended Sparse to report same-file callsites for __weak
symbols - which gave two dozen hits.

We have not found a clean way to work around this bug on the source
code level (noinline and explicit barrier()s are ignored by GCC), so we do
not allow these compilers (which are quite rare these days, have other bugs
and are superceded by the 4.1.2 bugfix release anyway).

Kernel builds under gcc 410 or 411 will now fail with this error message:

  Sorry, your compiler is too old, too buggy or not recognized.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/compiler.h |   17 +++++++++++++++--
 1 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index ea7c6be..dd558ce 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -36,12 +36,25 @@ extern void __chk_io_ptr(const volatile void __iomem *);
 
 #ifdef __KERNEL__
 
-#if __GNUC__ >= 4
+/*
+ * GCC 4.1.0 and 4.1.1 has a bug that can miscompile __weak symbols,
+ * by inlining __weak functions into same-file call sites - breaking the
+ * kernel if the __weak symbol is overriden later on.
+ *
+ * We have not found a clean way to work around this bug on the source
+ * code level, so we do not allow these compilers (which are quite
+ * rare these days, have other bugs and are superceded by the 4.1.2
+ * bugfix release anyway):
+ */
+#define gcc41_inlining_bug \
+	(__GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ <= 1)
+
+#if __GNUC__ >= 4 && !gcc41_inlining_bug
 # include <linux/compiler-gcc4.h>
 #elif __GNUC__ == 3 && __GNUC_MINOR__ >= 2
 # include <linux/compiler-gcc3.h>
 #else
-# error Sorry, your compiler is too old/not recognized.
+# error Sorry, your compiler is too old, too buggy or not recognized.
 #endif
 
 #define notrace __attribute__((no_instrument_function))
--
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] kbuild: Disallow GCC 4.1.0 / 4.1.1
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Cc: David Miller <davem@davemloft.net>,
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To: Ingo Molnar <mingo@elte.hu>
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On Friday 02 January 2009, Ingo Molnar wrote:
> 
> * David Miller <davem@davemloft.net> wrote:
> 
> > From: Linus Torvalds <torvalds@linux-foundation.org>
> > Date: Wed, 31 Dec 2008 13:22:53 -0800 (PST)
> > 
> > > On Wed, 31 Dec 2008, Andrew Morton wrote:
> > > > 
> > > > Adrian claimed that it was gcc-4.1.0 and 4.1.1 only.  He proposed
> > > > banning them: http://lkml.org/lkml/2008/8/5/444
> > > 
> > > If it really is just those releases, then yes, considering the number 
> > > of cases we apparently have, and considering how ugly it is in some 
> > > cases to move the weak function anywhere else, maybe banning those 
> > > versions is the proper thing to do.
> > > 
> > > It probably won't hurt very many people - yeah, some people will be 
> > > forced to upgrade, but I have this memory of early 4.1 having had 
> > > other bugs anyway, so it's probably a good idea.
> > 
> > I think this is probably the best way to handle this.
> 
> okay - to move this matter from the discussion-space to the 
> solution-space, how about the patch below? (tested on x86 with a 
> non-affected compiler version.)

...or we can just merge Adrian's patch from June 2008 which also fixes
the issue nicely.

OTOH your patch has an advantage of addressing the problem in the more
appropriate place (include/linux/compiler.h) and from what I see allows
us to remove previous gcc 4.1.0 check from init/main.c?

> 	Ingo
> 
> -------------->
> From e6346e5ab54dcf12888a79dfd5402f5de09b3fad Mon Sep 17 00:00:00 2001
> From: Ingo Molnar <mingo@elte.hu>
> Date: Fri, 2 Jan 2009 12:46:22 +0100
> Subject: [PATCH] kbuild: Disallow GCC 4.1.0 / 4.1.1
> 
> Impact: fix crashes that can trigger if built with GCC 4.1.0 or 4.1.1
> 
> GCC 4.1.0 and 4.1.1 has a bug that can miscompile __weak symbols,
> by inlining __weak functions into same-file call sites - breaking the
> kernel if the __weak symbol is overriden later on.
> 
> In the past we tried to work around this problem by artificially
> isolating call site and definition site - but these bugs tend to
> pop up regularly:
> 
>  43a2563: sparseirq: move __weak symbols into separate compilation unit
>  13a0c3c: sparseirq: work around compiler optimizing away __weak functions
> 
> And Linus has extended Sparse to report same-file callsites for __weak
> symbols - which gave two dozen hits.
> 
> We have not found a clean way to work around this bug on the source
> code level (noinline and explicit barrier()s are ignored by GCC), so we do
> not allow these compilers (which are quite rare these days, have other bugs
> and are superceded by the 4.1.2 bugfix release anyway).
> 
> Kernel builds under gcc 410 or 411 will now fail with this error message:
> 
>   Sorry, your compiler is too old, too buggy or not recognized.
> 
> Signed-off-by: Ingo Molnar <mingo@elte.hu>
> ---
>  include/linux/compiler.h |   17 +++++++++++++++--
>  1 files changed, 15 insertions(+), 2 deletions(-)
> 
> diff --git a/include/linux/compiler.h b/include/linux/compiler.h
> index ea7c6be..dd558ce 100644
> --- a/include/linux/compiler.h
> +++ b/include/linux/compiler.h
> @@ -36,12 +36,25 @@ extern void __chk_io_ptr(const volatile void __iomem *);
>  
>  #ifdef __KERNEL__
>  
> -#if __GNUC__ >= 4
> +/*
> + * GCC 4.1.0 and 4.1.1 has a bug that can miscompile __weak symbols,
> + * by inlining __weak functions into same-file call sites - breaking the
> + * kernel if the __weak symbol is overriden later on.
> + *
> + * We have not found a clean way to work around this bug on the source
> + * code level, so we do not allow these compilers (which are quite
> + * rare these days, have other bugs and are superceded by the 4.1.2
> + * bugfix release anyway):
> + */
> +#define gcc41_inlining_bug \
> +	(__GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ <= 1)
> +
> +#if __GNUC__ >= 4 && !gcc41_inlining_bug
>  # include <linux/compiler-gcc4.h>
>  #elif __GNUC__ == 3 && __GNUC_MINOR__ >= 2
>  # include <linux/compiler-gcc3.h>
>  #else
> -# error Sorry, your compiler is too old/not recognized.
> +# error Sorry, your compiler is too old, too buggy or not recognized.
>  #endif
>  
>  #define notrace __attribute__((no_instrument_function))
--
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Subject: [PATCH] kbuild: Remove gcc 4.1.0 quirk from init/main.c
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To: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> wrote:

> On Friday 02 January 2009, Ingo Molnar wrote:
> > 
> > * David Miller <davem@davemloft.net> wrote:
> > 
> > > From: Linus Torvalds <torvalds@linux-foundation.org>
> > > Date: Wed, 31 Dec 2008 13:22:53 -0800 (PST)
> > > 
> > > > On Wed, 31 Dec 2008, Andrew Morton wrote:
> > > > > 
> > > > > Adrian claimed that it was gcc-4.1.0 and 4.1.1 only.  He proposed
> > > > > banning them: http://lkml.org/lkml/2008/8/5/444
> > > > 
> > > > If it really is just those releases, then yes, considering the number 
> > > > of cases we apparently have, and considering how ugly it is in some 
> > > > cases to move the weak function anywhere else, maybe banning those 
> > > > versions is the proper thing to do.
> > > > 
> > > > It probably won't hurt very many people - yeah, some people will be 
> > > > forced to upgrade, but I have this memory of early 4.1 having had 
> > > > other bugs anyway, so it's probably a good idea.
> > > 
> > > I think this is probably the best way to handle this.
> > 
> > okay - to move this matter from the discussion-space to the 
> > solution-space, how about the patch below? (tested on x86 with a 
> > non-affected compiler version.)
> 
> ...or we can just merge Adrian's patch from June 2008 which also fixes 
> the issue nicely.

didnt know about that patch, but yeah, sure.

> OTOH your patch has an advantage of addressing the problem in the more 
> appropriate place (include/linux/compiler.h) and from what I see allows 
> us to remove previous gcc 4.1.0 check from init/main.c?

Good spotting - find followup cleanup patch below.

	Ingo

------------------->
>From d23cbaaa342e5555a919a543095d656415a55950 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 2 Jan 2009 16:16:16 +0100
Subject: [PATCH] kbuild: Remove gcc 4.1.0 quirk from init/main.c

Impact: cleanup

We now have a cleaner check for gcc 4.1.0/4.1.1 trouble in
include/linux/compiler.h, so remove the 4.1.0 quirk from
init/main.c.

Reported-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 init/main.c |    9 ---------
 1 files changed, 0 insertions(+), 9 deletions(-)

diff --git a/init/main.c b/init/main.c
index 2a7ce0f..5ced153 100644
--- a/init/main.c
+++ b/init/main.c
@@ -75,15 +75,6 @@
 #include <asm/smp.h>
 #endif
 
-/*
- * This is one of the first .c files built. Error out early if we have compiler
- * trouble.
- */
-
-#if __GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ == 0
-#warning gcc-4.1.0 is known to miscompile the kernel.  A different compiler version is recommended.
-#endif

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To: deller@gmx.de (Helge Deller)
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> Hi Dave,
> 
> telling you to try vanilla 2.6.28 was a stupid idea.
> I forgot that I had exactly the same problem (slab corruption):
> http://bugzilla.kernel.org/show_bug.cgi?id=11913
> when I started the thread 
> "2.6.28-rcX in pretty bad shape on parisc"
> here on the list as well.
> 
> The solution for me was to use another default config.
> James posted this one, which started to get everything working for me:
> http://parisc-linux.org/~jejb/config-2.6.28-rc5-ion
> Try this one instead (e.g. with Kyle's tree).
> 
> I assume something in your .config is different than what is in
> James' .config. It would be interesting to know what it
> is. I didn't checked further at that time.

The config that I have been using is based on James' ion config, plus
the defaults from running make oldconfig.

I actually was running 2.6.28 before I started experimenting yesterday.
It had run about three days building gcc without major problems.  As
noted by Grant, there is usually one unexplained segv (usually in make
or bash), then the system seems to run reasonably well for an extended
period.

If bash segvs, the system goes into an infinite loop of segvs due to the
way it handles signals, and the fact that the kernel restarts the faulting
instruction.  This fills the root file system with log messages...

I'm running a hacked version of bash which exits immediately to avoid this
problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:21 2018
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To: deller@gmx.de (Helge Deller)
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> I assume something in your .config is different than what is in
> James' .config. It would be interesting to know what it
> is. I didn't checked further at that time.

On this, there is a problem with config's for my c3000.  2.6.28 builds
and boots fine with a config based on Kyle's allegro config.  However,
it crashes with thw config that I'd being using.  This is just a guess,
but I think IDE support is broken (machine has a cd drive).

Dave
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On Fri, 2 Jan 2009, Ingo Molnar wrote:
> --- a/include/linux/compiler.h
> +++ b/include/linux/compiler.h
> @@ -36,12 +36,25 @@ extern void __chk_io_ptr(const volatile void __iomem *);
>  
>  #ifdef __KERNEL__
>  
> -#if __GNUC__ >= 4
> +/*
> + * GCC 4.1.0 and 4.1.1 has a bug that can miscompile __weak symbols,
> + * by inlining __weak functions into same-file call sites - breaking the
> + * kernel if the __weak symbol is overriden later on.
> + *
> + * We have not found a clean way to work around this bug on the source
> + * code level, so we do not allow these compilers (which are quite
> + * rare these days, have other bugs and are superceded by the 4.1.2
> + * bugfix release anyway):
> + */
> +#define gcc41_inlining_bug \
> +	(__GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ <= 1)
> +
> +#if __GNUC__ >= 4 && !gcc41_inlining_bug
>  # include <linux/compiler-gcc4.h>

I think this is wrong.

Just move the check into <linux/compiler-gcc4.h>

It makes no sense to do stuff that is specific to gcc4 in the general gcc 
header file. It seems you did this just in order to re-use a (bad) generic 
error case. 

			Linus
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To: Ingo Molnar <mingo@elte.hu>
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On Fri, 2 Jan 2009, Linus Torvalds wrote:
> 
> I think this is wrong.
> 
> Just move the check into <linux/compiler-gcc4.h>

In fact, looking at that whole mess, I redid it all. It was disgusting how 
conditionals in gcc4.h needed to double-check that __GNUC__ really was 4 
(rather than something bigger), which largely negated the whole nice clean 
compiler version separation.

I pushed out my preferred version, which fixes up the whole thing. The 
gcc4 header file now only gets included for __GNUC__ == 4, and when we 
ever see a __GNUC__ of 5, it will automatically DTRT and try to include 
<linux/compiler-gcc5.h> instead of #4.

And then the check in gcc4.h for 4.1.0 and 4.1.1 is much simplified.  The 
two patches I pushed out add functionality, but don't actually add any new 
lines (the first simplification patch removes more lines than it adds, and 
the second one that adds the __weak bug test adds as mahy lines as the 
cleanup removed).

And it all looks more logical too, imho.

		Linus
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* Linus Torvalds <torvalds@linux-foundation.org> wrote:

> 
> 
> On Fri, 2 Jan 2009, Ingo Molnar wrote:
> > --- a/include/linux/compiler.h
> > +++ b/include/linux/compiler.h
> > @@ -36,12 +36,25 @@ extern void __chk_io_ptr(const volatile void __iomem *);
> >  
> >  #ifdef __KERNEL__
> >  
> > -#if __GNUC__ >= 4
> > +/*
> > + * GCC 4.1.0 and 4.1.1 has a bug that can miscompile __weak symbols,
> > + * by inlining __weak functions into same-file call sites - breaking the
> > + * kernel if the __weak symbol is overriden later on.
> > + *
> > + * We have not found a clean way to work around this bug on the source
> > + * code level, so we do not allow these compilers (which are quite
> > + * rare these days, have other bugs and are superceded by the 4.1.2
> > + * bugfix release anyway):
> > + */
> > +#define gcc41_inlining_bug \
> > +	(__GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ <= 1)
> > +
> > +#if __GNUC__ >= 4 && !gcc41_inlining_bug
> >  # include <linux/compiler-gcc4.h>
> 
> I think this is wrong.
> 
> Just move the check into <linux/compiler-gcc4.h>
> 
> It makes no sense to do stuff that is specific to gcc4 in the general 
> gcc header file. It seems you did this just in order to re-use a (bad) 
> generic error case.

yeah. I first hacked the generic check then saw how ugly the end result 
was and moved it one level higher. Which was less ugly than where it came 
from and not much worse than the starting point (so it passed my filters) 
but still not clean enough (so it didnt pass your filters).

How about the patch below instead? It cleans up the generic check by 
splitting all the per-major-version checks out into gcc4 and gcc3.

(still untested)

	Ingo

------------->
>From bb951ce0794f0e5974b834eb14e974a0a2c119db Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 2 Jan 2009 12:46:22 +0100
Subject: [PATCH] kbuild: Disallow GCC 4.1.0 / 4.1.1

Impact: fix crashes that can trigger if built with GCC 4.1.0 or 4.1.1

GCC 4.1.0 and 4.1.1 has a bug that can miscompile __weak symbols,
by inlining __weak functions into same-file call sites - breaking the
kernel if the __weak symbol is overriden later on.

In the past we tried to work around this problem by artificially
isolating call site and definition site - but these bugs tend to
pop up regularly:

 43a2563: sparseirq: move __weak symbols into separate compilation unit
 13a0c3c: sparseirq: work around compiler optimizing away __weak functions

And Linus has extended Sparse to report same-file callsites for __weak
symbols - which gave two dozen hits.

We have not found a clean way to work around this bug on the source
code level (noinline and explicit barrier()s are ignored by GCC), so we do
not allow these compilers (which are quite rare these days, have other bugs
and are superceded by the 4.1.2 bugfix release anyway).

Kernel builds under gcc 410 or 411 will now fail with this error message:

  Sorry, GCC 4.1.0/4.1.1 are too buggy to build the kernel - please
  upgrade to 4.1.2 or later versions.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/compiler-gcc3.h |    4 ++++
 include/linux/compiler-gcc4.h |   14 ++++++++++++++
 include/linux/compiler.h      |    4 ++--
 3 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/include/linux/compiler-gcc3.h b/include/linux/compiler-gcc3.h
index e5eb795..a929a6d 100644
--- a/include/linux/compiler-gcc3.h
+++ b/include/linux/compiler-gcc3.h
@@ -2,6 +2,10 @@
 #error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
 #endif
 
+#if __GNUC_MINOR__ < 2
+# error Sorry, your compiler is too old - please upgrade it.
+#endif
+
 /* These definitions are for GCC v3.x.  */
 #include <linux/compiler-gcc.h>
 
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index 974f5b7..b1edc9d 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -2,6 +2,20 @@
 #error "Please don't include <linux/compiler-gcc4.h> directly, include <linux/compiler.h> instead."
 #endif
 
+/*
+ * GCC 4.1.0 and 4.1.1 has a bug that can miscompile __weak symbols,
+ * by inlining __weak functions into same-file call sites - breaking the
+ * kernel if the __weak symbol is overriden later on.
+ *
+ * We have not found a clean way to work around this bug on the source
+ * code level, so we do not allow these compilers (which are quite
+ * rare these days, have other bugs and are superceded by the 4.1.2
+ * bugfix release anyway):
+ */
+#if __GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ <= 1
+# error Sorry, GCC 4.1.0/4.1.1 are too buggy to build the kernel - please upgrade to 4.1.2 or later versions.
+#endif
+
 /* These definitions are for GCC v4.x.  */
 #include <linux/compiler-gcc.h>
 
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index ea7c6be..18edc7a 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -38,10 +38,10 @@ extern void __chk_io_ptr(const volatile void __iomem *);
 
 #if __GNUC__ >= 4
 # include <linux/compiler-gcc4.h>
-#elif __GNUC__ == 3 && __GNUC_MINOR__ >= 2
+#elif __GNUC__ == 3
 # include <linux/compiler-gcc3.h>
 #else
-# error Sorry, your compiler is too old/not recognized.
+# error Sorry, your compiler is too old or not recognized.
 #endif
 
 #define notrace __attribute__((no_instrument_function))
--
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* Linus Torvalds <torvalds@linux-foundation.org> wrote:

> 
> 
> On Fri, 2 Jan 2009, Linus Torvalds wrote:
> > 
> > I think this is wrong.
> > 
> > Just move the check into <linux/compiler-gcc4.h>
> 
> In fact, looking at that whole mess, I redid it all. It was disgusting 
> how conditionals in gcc4.h needed to double-check that __GNUC__ really 
> was 4 (rather than something bigger), which largely negated the whole 
> nice clean compiler version separation.
> 
> I pushed out my preferred version, which fixes up the whole thing. The 
> gcc4 header file now only gets included for __GNUC__ == 4, and when we 
> ever see a __GNUC__ of 5, it will automatically DTRT and try to include 
> <linux/compiler-gcc5.h> instead of #4.
> 
> And then the check in gcc4.h for 4.1.0 and 4.1.1 is much simplified.  
> The two patches I pushed out add functionality, but don't actually add 
> any new lines (the first simplification patch removes more lines than it 
> adds, and the second one that adds the __weak bug test adds as mahy 
> lines as the cleanup removed).
> 
> And it all looks more logical too, imho.

yeah, agreed, much cleaner.

The gcc3 check for gcc 3.0 and 3.1 can be pushed into gcc3 as well - not 
sure whether you fixed that. (i fixed it in the patch i just sent - but i 
didnt notice the gcc5 mess in gcc4.h that you fixed)

	Ingo
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From: Ingo Molnar <mingo@elte.hu>
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Subject: [PATCH] Disallow gcc versions 3.{0,1}
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* Ingo Molnar <mingo@elte.hu> wrote:

> > And it all looks more logical too, imho.
> 
> yeah, agreed, much cleaner.
> 
> The gcc3 check for gcc 3.0 and 3.1 can be pushed into gcc3 as well - not 
> sure whether you fixed that. (i fixed it in the patch i just sent - but 
> i didnt notice the gcc5 mess in gcc4.h that you fixed)

ok, i see them now:

 f9d1425: Disallow gcc versions 4.1.{0,1}
 f153b82: Sanitize gcc version header includes

agreed, much cleaner.

One small issue - i think this now allows gcc 3.0 and 3.1 again - which we 
didnt before. Dont we need the patch below - am i missing something?

	Ingo

------------------->
>From 1458f25412a838968e845ec0bc1b18db70cba7cd Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 2 Jan 2009 18:53:14 +0100
Subject: [PATCH] Disallow gcc versions 3.{0,1}

GCC 3.0 and 3.1 are too old to build a working kernel.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/compiler-gcc3.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/linux/compiler-gcc3.h b/include/linux/compiler-gcc3.h
index 2befe65..8005eff 100644
--- a/include/linux/compiler-gcc3.h
+++ b/include/linux/compiler-gcc3.h
@@ -2,6 +2,10 @@
 #error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
 #endif
 
+#if __GNUC_MINOR__ < 2
+# error Sorry, your compiler is too old - please upgrade it.
+#endif
+
 #if __GNUC_MINOR__ >= 3
 # define __used			__attribute__((__used__))
 #else
--
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On Fri, Jan 02, 2009 at 09:38:14AM -0800, Linus Torvalds wrote:
> 
> 
> On Fri, 2 Jan 2009, Linus Torvalds wrote:
> > 
> > I think this is wrong.
> > 
> > Just move the check into <linux/compiler-gcc4.h>
> 
> In fact, looking at that whole mess, I redid it all. It was disgusting how 
> conditionals in gcc4.h needed to double-check that __GNUC__ really was 4 
> (rather than something bigger), which largely negated the whole nice clean 
> compiler version separation.
> 
> I pushed out my preferred version, which fixes up the whole thing. The 
> gcc4 header file now only gets included for __GNUC__ == 4, and when we 
> ever see a __GNUC__ of 5, it will automatically DTRT and try to include 
> <linux/compiler-gcc5.h> instead of #4.
> 
> And then the check in gcc4.h for 4.1.0 and 4.1.1 is much simplified.  The 
> two patches I pushed out add functionality, but don't actually add any new 
> lines (the first simplification patch removes more lines than it adds, and 
> the second one that adds the __weak bug test adds as mahy lines as the 
> cleanup removed).
> 
> And it all looks more logical too, imho.

Bugger....
Now I cannot do cross compile for: alpha, arm, m68k and sparc.

Not that I actually try to run these beasts but just being able
to do cross compile has served me well.

Last I looked (only few days ago) crosstool-ng did not support sparc :-(

	Sam
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To: Ingo Molnar <mingo@elte.hu>
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On Fri, 2 Jan 2009, Ingo Molnar wrote:
> 
> The gcc3 check for gcc 3.0 and 3.1 can be pushed into gcc3 as well - not 
> sure whether you fixed that. (i fixed it in the patch i just sent - but i 
> didnt notice the gcc5 mess in gcc4.h that you fixed)

I just dropped it. Gcc 3.0 and 3.1 are so old that we simply don't care. 

Nobody who has compiled a kernel in the last two years can possibly have 
those versions: we've failed the build on them since December 2006. And 
there obviously won't be any new users either. So consider it a 
generational garbage collection event.

Of course, if we really want to check for old compiler versions, we can 
add the check back (to the gcc3 header file where it belongs), but it does 
seem to be entirely historical.

			Linus
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* Linus Torvalds <torvalds@linux-foundation.org> wrote:

> 
> 
> On Fri, 2 Jan 2009, Ingo Molnar wrote:
> > 
> > The gcc3 check for gcc 3.0 and 3.1 can be pushed into gcc3 as well - not 
> > sure whether you fixed that. (i fixed it in the patch i just sent - but i 
> > didnt notice the gcc5 mess in gcc4.h that you fixed)
> 
> I just dropped it. Gcc 3.0 and 3.1 are so old that we simply don't care.

we didnt support it for quite some time. If you look at that ugly version 
check you replaced:

 #if __GNUC__ >= 4 && !gcc41_inlining_bug
 # include <linux/compiler-gcc4.h>
 #elif __GNUC__ == 3 && __GNUC_MINOR__ >= 2
 # include <linux/compiler-gcc3.h>
 #else
 # error Sorry, your compiler is too old, too buggy or not recognized.
 #endif

it has a hidden 'gcc 3.0 / 3.1 is not supported' condition in it. So what 
i tried to point out that your patch causes a regression here - we dont 
filter out gcc 3.0/3.1 out anymore.

	Ingo
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Subject: Re: [PATCH] kbuild: Remove gcc 4.1.0 quirk from init/main.c
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> From d23cbaaa342e5555a919a543095d656415a55950 Mon Sep 17 00:00:00 2001
> From: Ingo Molnar <mingo@elte.hu>
> Date: Fri, 2 Jan 2009 16:16:16 +0100
> Subject: [PATCH] kbuild: Remove gcc 4.1.0 quirk from init/main.c
> 
> Impact: cleanup
> 
> We now have a cleaner check for gcc 4.1.0/4.1.1 trouble in
> include/linux/compiler.h, so remove the 4.1.0 quirk from
> init/main.c.
> 
> Reported-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
> Signed-off-by: Ingo Molnar <mingo@elte.hu>

This should be applied despite Linus' different approach in compiler.h.

Acked-by: Sam Ravnborg <sam@ravnborg.org>

> ---
>  init/main.c |    9 ---------
>  1 files changed, 0 insertions(+), 9 deletions(-)
> 
> diff --git a/init/main.c b/init/main.c
> index 2a7ce0f..5ced153 100644
> --- a/init/main.c
> +++ b/init/main.c
> @@ -75,15 +75,6 @@
>  #include <asm/smp.h>
>  #endif
>  
> -/*
> - * This is one of the first .c files built. Error out early if we have compiler
> - * trouble.
> - */
> -
> -#if __GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ == 0
> -#warning gcc-4.1.0 is known to miscompile the kernel.  A different compiler version is recommended.
> -#endif
> -
>  static int kernel_init(void *);
>  
>  extern void init_IRQ(void);
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On Fri, 2 Jan 2009, Sam Ravnborg wrote:
> 
> Bugger....
> Now I cannot do cross compile for: alpha, arm, m68k and sparc.
> 
> Not that I actually try to run these beasts but just being able
> to do cross compile has served me well.

We _could_ make a "CONFIG_COMPILE_ONLY" check, but wouldn't it be even 
nicer to make sure the cross-compiles are something that might actually be 
expected to work?

I realize that cross-tools tend to lag a bit - the pressure to maintain 
them tends to be much lower - but I was sure we had somebody who did a 
reasonable cross-compiler toolchain. Is gcc-4.1 really the most modern 
thing that is easily available?

			Linus

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On Fri, 2 Jan 2009, Ingo Molnar wrote:
> 
> So what i tried to point out that your patch causes a regression here - 
> we dont filter out gcc 3.0/3.1 out anymore.

What I tried to tell you was that we don't care - nobody can have it 
anyway. If somebody tried to compile the kernel with it, we've already 
refused for the last 2+ years. So there are no old users out there. And 
there certainly aren't any new ones.

			Linus
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On Fri, 2 Jan 2009, Linus Torvalds wrote:
> 
> What I tried to tell you was that we don't care - nobody can have it 
> anyway. If somebody tried to compile the kernel with it, we've already 
> refused for the last 2+ years. So there are no old users out there. And 
> there certainly aren't any new ones.

.. but we cetrtainly can add the check back easily enough if you really 
want to, of course. I just don't think there is much point.

			Linus

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* Sam Ravnborg <sam@ravnborg.org> wrote:

> > And it all looks more logical too, imho.
> 
> Bugger....
> Now I cannot do cross compile for: alpha, arm, m68k and sparc.

hm, i just did a successful cross-build from x86 to alpha:

  KSYM    .tmp_kallsyms2.S
  AS      .tmp_kallsyms2.o
  LD      vmlinux
  SYSMAP  System.map
  SYSMAP  .tmp_System.map

  phoenix:~/linux/linux> head -6 /dev/shm/tip/build/.config 
  #
  # Automatically generated make config: don't edit
  # Linux kernel version: 2.6.28
  # Fri Jan  2 19:28:14 2009
  #
  CONFIG_ALPHA=y

with these commits present:

  f9d1425: Disallow gcc versions 4.1.{0,1}
  f153b82: Sanitize gcc version header includes

what type of cross-build breakage do they cause?

	Ingo
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On Fri, Jan 02, 2009 at 10:04:27AM -0800, Linus Torvalds wrote:
> 
> 
> On Fri, 2 Jan 2009, Sam Ravnborg wrote:
> > 
> > Bugger....
> > Now I cannot do cross compile for: alpha, arm, m68k and sparc.
> > 
> > Not that I actually try to run these beasts but just being able
> > to do cross compile has served me well.
> 
> We _could_ make a "CONFIG_COMPILE_ONLY" check, but wouldn't it be even 
> nicer to make sure the cross-compiles are something that might actually be 
> expected to work?
> 
> I realize that cross-tools tend to lag a bit - the pressure to maintain 
> them tends to be much lower - but I was sure we had somebody who did a 
> reasonable cross-compiler toolchain. Is gcc-4.1 really the most modern 
> thing that is easily available?

Asked google and it found following page:

    http://www.kernel.org/pub/tools/crosstool/

Architecuter   OK?    gcc version
--------------------------------- 
alpha          No     gcc 4.0.2
arm            Yes    gcc 3.4.5
ia64           Yes    gcc 3.4.5
m68k           Yes    gcc 3.4.5
mips           Yes    gcc 3.4.5
sh4            Yes    gcc 3.4.5
sparc          Yes    gcc 3.4.5
sparc64        Yes    gcc 3.4.5
x86_64         Yes    gcc 3.4.5


So from this list of tool chains we can continue to do cross builds
of all except alpha.
But the gcc version is getting ancient..

Why it shall be so hard to do cross build toolchains is above my
imagination but then I also never looked at what it involes.

Added Vegard that maintain these pages.

	Sam
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On Fri, Jan 02, 2009 at 07:22:48PM +0100, Ingo Molnar wrote:
> 
> * Sam Ravnborg <sam@ravnborg.org> wrote:
> 
> > > And it all looks more logical too, imho.
> > 
> > Bugger....
> > Now I cannot do cross compile for: alpha, arm, m68k and sparc.
> 
> hm, i just did a successful cross-build from x86 to alpha:
> 
>   KSYM    .tmp_kallsyms2.S
>   AS      .tmp_kallsyms2.o
>   LD      vmlinux
>   SYSMAP  System.map
>   SYSMAP  .tmp_System.map
> 
>   phoenix:~/linux/linux> head -6 /dev/shm/tip/build/.config 
>   #
>   # Automatically generated make config: don't edit
>   # Linux kernel version: 2.6.28
>   # Fri Jan  2 19:28:14 2009
>   #
>   CONFIG_ALPHA=y
> 
> with these commits present:
> 
>   f9d1425: Disallow gcc versions 4.1.{0,1}
>   f153b82: Sanitize gcc version header includes
> 
> what type of cross-build breakage do they cause?

The default gcc made by demo-alpha with crosstool is version 4.1.0:

 /opt/crosstool/gcc-4.1.0-glibc-2.3.6/alpha-unknown-linux-gnu/bin/alpha-unknown-linux-gnu-gcc --version
alpha-unknown-linux-gnu-gcc (GCC) 4.1.0
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

	Sam
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Vegard Nossum <vegard@kernel.org>, Ingo Molnar <mingo@elte.hu>,
	David Miller <davem@davemloft.net>,
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To: Sam Ravnborg <sam@ravnborg.org>
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Sam Ravnborg wrote:
> On Fri, Jan 02, 2009 at 10:04:27AM -0800, Linus Torvalds wrote:
>>
>> On Fri, 2 Jan 2009, Sam Ravnborg wrote:
>>> Bugger....
>>> Now I cannot do cross compile for: alpha, arm, m68k and sparc.
>>>
>>> Not that I actually try to run these beasts but just being able
>>> to do cross compile has served me well.
>> We _could_ make a "CONFIG_COMPILE_ONLY" check, but wouldn't it be even 
>> nicer to make sure the cross-compiles are something that might actually be 
>> expected to work?
>>
>> I realize that cross-tools tend to lag a bit - the pressure to maintain 
>> them tends to be much lower - but I was sure we had somebody who did a 
>> reasonable cross-compiler toolchain. Is gcc-4.1 really the most modern 
>> thing that is easily available?
> 
> Asked google and it found following page:
> 
>     http://www.kernel.org/pub/tools/crosstool/
> 
> Architecuter   OK?    gcc version
> --------------------------------- 
> alpha          No     gcc 4.0.2
> arm            Yes    gcc 3.4.5
> ia64           Yes    gcc 3.4.5
> m68k           Yes    gcc 3.4.5
> mips           Yes    gcc 3.4.5
> sh4            Yes    gcc 3.4.5
> sparc          Yes    gcc 3.4.5
> sparc64        Yes    gcc 3.4.5
> x86_64         Yes    gcc 3.4.5
> 
> 
> So from this list of tool chains we can continue to do cross builds
> of all except alpha.
> But the gcc version is getting ancient..
> 
> Why it shall be so hard to do cross build toolchains is above my
> imagination but then I also never looked at what it involes.
> 
> Added Vegard that maintain these pages.

I doubt that these are any more recent, but the filenames don't say:

http://userweb.kernel.org/~akpm/cross-compilers/


Yes, it is an ongoing problem.

-- 
~Randy

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* Sam Ravnborg <sam@ravnborg.org> wrote:

> On Fri, Jan 02, 2009 at 07:22:48PM +0100, Ingo Molnar wrote:
> > 
> > * Sam Ravnborg <sam@ravnborg.org> wrote:
> > 
> > > > And it all looks more logical too, imho.
> > > 
> > > Bugger....
> > > Now I cannot do cross compile for: alpha, arm, m68k and sparc.
> > 
> > hm, i just did a successful cross-build from x86 to alpha:
> > 
> >   KSYM    .tmp_kallsyms2.S
> >   AS      .tmp_kallsyms2.o
> >   LD      vmlinux
> >   SYSMAP  System.map
> >   SYSMAP  .tmp_System.map
> > 
> >   phoenix:~/linux/linux> head -6 /dev/shm/tip/build/.config 
> >   #
> >   # Automatically generated make config: don't edit
> >   # Linux kernel version: 2.6.28
> >   # Fri Jan  2 19:28:14 2009
> >   #
> >   CONFIG_ALPHA=y
> > 
> > with these commits present:
> > 
> >   f9d1425: Disallow gcc versions 4.1.{0,1}
> >   f153b82: Sanitize gcc version header includes
> > 
> > what type of cross-build breakage do they cause?
> 
> The default gcc made by demo-alpha with crosstool is version 4.1.0:
> 
>  /opt/crosstool/gcc-4.1.0-glibc-2.3.6/alpha-unknown-linux-gnu/bin/alpha-unknown-linux-gnu-gcc --version
> alpha-unknown-linux-gnu-gcc (GCC) 4.1.0
> Copyright (C) 2006 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

ah, ok. I build cross-compilers from scratch, so i have 4.3.3-pre:

 phoenix:~/linux/linux> /opt/crossgcc/cross/bin/alpha-linux-gcc -v
 [...]
 gcc version 4.3.3 20081123 (prerelease) (GCC) 

	Ingo
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From - Thu Nov 08 21:03:22 2018
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On Fri, Jan 02, 2009 at 10:04:27AM -0800, Linus Torvalds wrote:
> 
> 
> On Fri, 2 Jan 2009, Sam Ravnborg wrote:
> > 
> > Bugger....
> > Now I cannot do cross compile for: alpha, arm, m68k and sparc.
> > 
> > Not that I actually try to run these beasts but just being able
> > to do cross compile has served me well.
> 
> We _could_ make a "CONFIG_COMPILE_ONLY" check, but wouldn't it be even 
> nicer to make sure the cross-compiles are something that might actually be 
> expected to work?
> 
> I realize that cross-tools tend to lag a bit - the pressure to maintain 
> them tends to be much lower - but I was sure we had somebody who did a 
> reasonable cross-compiler toolchain. Is gcc-4.1 really the most modern 
> thing that is easily available?

FWIW, I'm using 4.3 on all targets at the moment.  See
git://git.kernel.org/pub/scm/linux/kernel/git/viro/toolchain.git/
for fedora-based variant of that sucker.  And yes, it does include
cross-to-sparc; all but sh/sh64, in fact (sh had serious compiler
breakage around 4.3.0 and backporting from -HEAD was far beyond
what I considered reasonable at that point).
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] kbuild: Disallow GCC 4.1.0 / 4.1.1
Date: Fri, 02 Jan 2009 20:05:44 +0100
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Cc: Sam Ravnborg <sam@ravnborg.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	David Miller <davem@davemloft.net>, akpm@linux-foundation.org,
	rdreier@cisco.com, ian.campbell@citrix.com,
	jeremy.fitzhardinge@citrix.com, deller@gmx.de,
	rusty@rustcorp.com.au, linux-parisc@vger.kernel.org,
	linux-kernel@vger.kernel.org, kyle@mcmartin.ca, randolph@tausq.org,
	dave@hiauly1.hia.nrc.ca, Dan Kegel <dank@kegel.com>
To: Ingo Molnar <mingo@elte.hu>
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* Ingo Molnar wrote:
> * Sam Ravnborg <sam@ravnborg.org> wrote:
 
> > > what type of cross-build breakage do they cause?
> > 
> > The default gcc made by demo-alpha with crosstool is version 4.1.0:
> > 
> >  /opt/crosstool/gcc-4.1.0-glibc-2.3.6/alpha-unknown-linux-gnu/bin/alpha-unknown-linux-gnu-gcc --version
> > alpha-unknown-linux-gnu-gcc (GCC) 4.1.0
> > Copyright (C) 2006 Free Software Foundation, Inc.
> > This is free software; see the source for copying conditions.  There is NO
> > warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> 
> ah, ok. I build cross-compilers from scratch, so i have 4.3.3-pre:
> 
>  phoenix:~/linux/linux> /opt/crossgcc/cross/bin/alpha-linux-gcc -v
>  [...]
>  gcc version 4.3.3 20081123 (prerelease) (GCC) 
> 
> 	Ingo

I forwarded the thread to Dan Kegel to make him aware, that the used gcc
version in crosstools makes problems.


-- 
 
Bye bye ... Detlef



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From - Thu Nov 08 21:03:23 2018
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From: Andi Kleen <andi@firstfloor.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] kbuild: Disallow GCC 4.1.0 / 4.1.1
Date: Fri, 02 Jan 2009 20:14:58 +0100
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Sam Ravnborg <sam@ravnborg.org>, Ingo Molnar <mingo@elte.hu>,
	David Miller <davem@davemloft.net>,
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To: Al Viro <viro@ZenIV.linux.org.uk>
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Al Viro <viro@ZenIV.linux.org.uk> writes:
>
> FWIW, I'm using 4.3 on all targets at the moment.  See
> git://git.kernel.org/pub/scm/linux/kernel/git/viro/toolchain.git/
> for fedora-based variant of that sucker.  And yes, it does include
> cross-to-sparc; all but sh/sh64, in fact (sh had serious compiler
> breakage around 4.3.0 and backporting from -HEAD was far beyond
> what I considered reasonable at that point).

The full opensuse distribution also has a couple of spec files for
generating cross compilers from recent versions. These are for
icecream, but can be relatively easily adapted (or the binaries
reused)

In general I don't think building cross compilers is as hard
as it used to be, so it can be reasonably done without any support
scripts too.

Really no excuse to still use the old crosstool crap :)

-Andi

-- 
ak@linux.intel.com
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: resource_size_t printk woes...
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Cc: Helge Deller <deller@gmx.de>, dave.anglin@nrc-cnrc.gc.ca,
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Fri, Jan 02, 2009 at 11:43:03AM -0500, John David Anglin wrote:
...
> On this, there is a problem with config's for my c3000.  2.6.28 builds
> and boots fine with a config based on Kyle's allegro config.  However,
> it crashes with thw config that I'd being using.  This is just a guess,
> but I think IDE support is broken (machine has a cd drive).

That's posible. Can you look for HPMC PIM dump?
If so, I can take a look at it.

thanks,
grant
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Subject: Re: [PATCH] kbuild: Disallow GCC 4.1.0 / 4.1.1
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Cc: Ingo Molnar <mingo@elte.hu>, David Miller <davem@davemloft.net>,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Fri, Jan 02, 2009 at 10:05:47AM -0800, Linus Torvalds wrote:
> 
> 
> On Fri, 2 Jan 2009, Ingo Molnar wrote:
> > 
> > So what i tried to point out that your patch causes a regression here - 
> > we dont filter out gcc 3.0/3.1 out anymore.
> 
> What I tried to tell you was that we don't care - nobody can have it 
> anyway. If somebody tried to compile the kernel with it, we've already 
> refused for the last 2+ years. So there are no old users out there. And 
> there certainly aren't any new ones.

Yes some people (including me) still have them and are happy that there
is a check to prevent accidental builds with an inappropriate compiler.

Willy

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From - Thu Nov 08 21:03:23 2018
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From: Linus Torvalds <torvalds@linux-foundation.org>
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Cc: Ingo Molnar <mingo@elte.hu>, David Miller <davem@davemloft.net>,
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On Fri, 2 Jan 2009, Willy Tarreau wrote:
> 
> Yes some people (including me) still have them and are happy that there
> is a check to prevent accidental builds with an inappropriate compiler.

Heh, ok. If people really do actively have that version, let's add the 
check back in.

		Linus
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Subject: Re: HPMC bus timeout on C3600
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On Thu, 25 Dec 2008 14:36:25 -0700
Grant Grundler <grundler@parisc-linux.org> wrote:

> > Anything else I can do/provide to troubleshoot this ?
> 
> Two things:
> o consider posting some of the original findings on linux-ide and see
> if anyone has tested this controller on PPC or IA64.  I'm looking for
> any other architecture that has "hard fail" behavior like parisc does.
>   Testing on any other Big Endian HW would be worth hearing about too.
> 
> o write a quick and dirty "hpmc_symbols" script as described above
> and run it on the HPMC you provided earlier.
> 
> Debugging this further wil probably require modifying the sata_sil
> driver to log (e.g. ktrace) it's activities while under test.

Will do, just haven't had time yet.

I quickly looked into why the OS HPMC handler wasn't triggered and the
issue comes from the fact that the length provided to the PDC is
incorrect. The doc states that it should be in bytes while we provide it
in words.

I've attached a small patch that solves this little issue.

Cheers,
  Guy



--MP_/_ZGcnk9n_+Q5QwB2+U99uvP
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Content-Disposition: attachment; filename=fix-hpmc-handler-length.diff

OS HPMC handler length needs to be in bytes, not in words.

Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>

--- /root/traps.c.orig	2009-01-02 09:20:41.000000000 +0100
+++ arch/parisc/kernel/traps.c	2009-01-02 09:23:47.000000000 +0100
@@ -840,7 +840,7 @@
 
 	/* Compute Checksum for HPMC handler */
 
-	length = os_hpmc_end - os_hpmc;
+	length = (os_hpmc_end - os_hpmc) * sizeof(u32);
 	ivap[7] = length;
 
 	hpmcp = (u32 *)os_hpmc;

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On Fri, Jan 02, 2009 at 09:46:44PM +0100, Guy Martin wrote:
> OS HPMC handler length needs to be in bytes, not in words.
> Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
> 
> -	length = os_hpmc_end - os_hpmc;
> +	length = (os_hpmc_end - os_hpmc) * sizeof(u32);
>  	ivap[7] = length;

Ick. I wonder if I screwed that up when I fixed the function descriptor
breakage...

Will apply this fix, thanks Guy.

cheers, Kyle
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> On Fri, Jan 02, 2009 at 09:46:44PM +0100, Guy Martin wrote:
> > OS HPMC handler length needs to be in bytes, not in words.
> > Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
> > 
> > -	length = os_hpmc_end - os_hpmc;
> > +	length = (os_hpmc_end - os_hpmc) * sizeof(u32);
> >  	ivap[7] = length;
> 
> Ick. I wonder if I screwed that up when I fixed the function descriptor
> breakage...

The fix doesn't seem right.  Probably, os_hpmc and os_hpmc_end are
pointing to function descriptors.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Fri, Jan 02, 2009 at 04:14:12PM -0500, John David Anglin wrote:
> > On Fri, Jan 02, 2009 at 09:46:44PM +0100, Guy Martin wrote:
> > > OS HPMC handler length needs to be in bytes, not in words.
> > > Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
> > > 
> > > -	length = os_hpmc_end - os_hpmc;
> > > +	length = (os_hpmc_end - os_hpmc) * sizeof(u32);
> > >  	ivap[7] = length;
> > 
> > Ick. I wonder if I screwed that up when I fixed the function descriptor
> > breakage...
> 
> The fix doesn't seem right.  Probably, os_hpmc and os_hpmc_end are
> pointing to function descriptors.
> 

I think we've been over this before ;-)

commit c3d4ed4e3e5aa8d9e6b4b795f004a7028ce780e9
Author: Kyle McMartin <kyle@parisc-linux.org>
Date:   Mon Jun 4 02:26:52 2007 -0400

    [PARISC] Fix kernel panic in check_ivt
    
    check_ivt had some seriously broken code wrt function pointers on
    parisc64. Instead of referencing the hpmc code via a function
pointer,
    export symbols and reference it as a const array.
    
    Thanks to jda for pointing out the broken 64-bit func ptr handling.
    
    Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>


cheers, Kyle
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> On Fri, Jan 02, 2009 at 04:14:12PM -0500, John David Anglin wrote:
> > > On Fri, Jan 02, 2009 at 09:46:44PM +0100, Guy Martin wrote:
> > > > OS HPMC handler length needs to be in bytes, not in words.
> > > > Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
> > > > 
> > > > -	length = os_hpmc_end - os_hpmc;
> > > > +	length = (os_hpmc_end - os_hpmc) * sizeof(u32);
> > > >  	ivap[7] = length;
> > > 
> > > Ick. I wonder if I screwed that up when I fixed the function descriptor
> > > breakage...
> > 
> > The fix doesn't seem right.  Probably, os_hpmc and os_hpmc_end are
> > pointing to function descriptors.
> > 
> 
> I think we've been over this before ;-)

Looking at traps.o for a 64-bit build, I see the references are:

0000000000000048 R_PARISC_DLTIND21L  os_hpmc_end
0000000000000050 R_PARISC_DLTIND14R  os_hpmc_end
0000000000000058 R_PARISC_DLTIND21L  os_hpmc
000000000000005c R_PARISC_DLTIND14R  os_hpmc

Wonder what the DLT is pointing to.

Dave
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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Subject: Re: [PATCH] kbuild: Disallow GCC 4.1.0 / 4.1.1
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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> 
> Bugger....
> Now I cannot do cross compile for: alpha, arm, m68k and sparc.
> 
> Not that I actually try to run these beasts but just being able
> to do cross compile has served me well.
> 
> Last I looked (only few days ago) crosstool-ng did not support sparc :-(

There are also various variants of 4.1.1 around with the fix for
that inline bug backported (I think that's the case of the compiler
that ships with the Cell SDK for example).

What a f. mess :-(

Cheers,
Ben.

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On Sat, Jan 03, 2009 at 09:27:33AM +1100, Benjamin Herrenschmidt wrote:
> 
> > 
> > Bugger....
> > Now I cannot do cross compile for: alpha, arm, m68k and sparc.
> > 
> > Not that I actually try to run these beasts but just being able
> > to do cross compile has served me well.
> > 
> > Last I looked (only few days ago) crosstool-ng did not support sparc :-(
> 
> There are also various variants of 4.1.1 around with the fix for
> that inline bug backported (I think that's the case of the compiler
> that ships with the Cell SDK for example).
> 

We could add a feature check during the early phase of the
kernel build so we know if gcc has this bug or not.

But this would be the first time to do so IIRC - today we only
do some limited check to see if certain options are supported.

	Sam
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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	David Miller <davem@davemloft.net>,
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To: Andi Kleen <andi@firstfloor.org>
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On Fri, Jan 02, 2009 at 08:14:58PM +0100, Andi Kleen wrote:
> Al Viro <viro@ZenIV.linux.org.uk> writes:
> >
> > FWIW, I'm using 4.3 on all targets at the moment.  See
> > git://git.kernel.org/pub/scm/linux/kernel/git/viro/toolchain.git/
> > for fedora-based variant of that sucker.  And yes, it does include
> > cross-to-sparc; all but sh/sh64, in fact (sh had serious compiler
> > breakage around 4.3.0 and backporting from -HEAD was far beyond
> > what I considered reasonable at that point).
> 
> The full opensuse distribution also has a couple of spec files for
> generating cross compilers from recent versions. These are for
> icecream, but can be relatively easily adapted (or the binaries
> reused)
> 
> In general I don't think building cross compilers is as hard
> as it used to be, so it can be reasonably done without any support
> scripts too.

*snort*

Well, the only support script here is "call rpmbuild with the right
arguments" (and kmk, which is about running kernel cross-build
conveniently and has nothing to do with building cross-toolchain
itself).

I'll need to update that to more current gcc anyway (and see if that
takes care of sh/sh64), so if you can dig those .spec out... throw
them my way and I'll add them to repository.

How well do they handle the targets for which you have no glibc-dev
binary rpms, BTW?  I needed headers for ia64 and ppc64; both fortunately
are among the generally supported targets...
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Subject: Re: HPMC bus timeout on C3600
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To: kyle@infradead.org (Kyle McMartin)
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> I think we've been over this before ;-)

One safe way to compute this difference is using a difference
of local labels in .data.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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From - Thu Nov 08 21:03:24 2018
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Fri, Jan 02, 2009 at 07:09:57PM -0500, John David Anglin wrote:
> > I think we've been over this before ;-)
> 
> One safe way to compute this difference is using a difference
> of local labels in .data.
> 

Something like this? Sorry, I've almost completely forgotten gas syntax
and all that jazz...

I seem to recall writing a patch to dump the first 16 insns of os_hpmc
from the check_ivt call, and found that it was working sensibly on
64-bit.

regards, Kyle

diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index 2cbf13b..02e41da 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -295,5 +295,9 @@ os_hpmc_6:
 	b .
 	nop
 ENDPROC(os_hpmc)
-ENTRY(os_hpmc_end)	/* this label used to compute os_hpmc checksum */
+ENTRY(os_hpmc_end)
 	nop
+.data
+	.export os_hpmc_size
+os_hpmc_size:
+	.word os_hpmc_end-os_hpmc
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 4c771cd..5cb66ac 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -821,8 +821,8 @@ void handle_interruption(int code, struct pt_regs *regs)
 
 int __init check_ivt(void *iva)
 {
-	extern const u32 os_hpmc[];
-	extern const u32 os_hpmc_end[];
+	extern u32 os_hpmc_size;
+	extern u32 os_hpmc[];
 
 	int i;
 	u32 check = 0;
@@ -839,8 +839,7 @@ int __init check_ivt(void *iva)
 	    *ivap++ = 0;
 
 	/* Compute Checksum for HPMC handler */

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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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To: kyle@infradead.org (Kyle McMartin)
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> Something like this? Sorry, I've almost completely forgotten gas syntax
> and all that jazz...

Yes.  The gas syntax looks correct except you probably should add a
.align 4.  I would use local labels (that's what's what is done for
debug and exception info).  Just place the local labels adjacent to
os_hpmc and os_hpmc_end.  This ensures the diff is absolute.

> -ENTRY(os_hpmc_end)	/* this label used to compute os_hpmc checksum */
> +ENTRY(os_hpmc_end)

Probably, you don't need to export os_hpmc_end.

> -	length = os_hpmc_end - os_hpmc;
> +	length = os_hpmc_size * sizeof(u32);

I believe the size will be correct without multiplying by sizeof(u32).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:24 2018
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On Fri, Jan 02, 2009 at 08:24:50PM -0500, John David Anglin wrote:
> > Something like this? Sorry, I've almost completely forgotten gas syntax
> > and all that jazz...
> 
> Yes.  The gas syntax looks correct except you probably should add a
> .align 4.  I would use local labels (that's what's what is done for
> debug and exception info).  Just place the local labels adjacent to
> os_hpmc and os_hpmc_end.  This ensures the diff is absolute.
> 

Ahh, excellent. Thanks.

> > -ENTRY(os_hpmc_end)	/* this label used to compute os_hpmc checksum */
> > +ENTRY(os_hpmc_end)
> 
> Probably, you don't need to export os_hpmc_end.
> 

Indeed.

> > -	length = os_hpmc_end - os_hpmc;
> > +	length = os_hpmc_size * sizeof(u32);
> 
> I believe the size will be correct without multiplying by sizeof(u32).
> 

Ah, indeed. Good point.

cheers, Kyle
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diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index 2cbf13b..5595a2f 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -80,6 +80,7 @@ END(hpmc_pim_data)
 
 	.import intr_save, code
 ENTRY(os_hpmc)
+.os_hpmc:
 
 	/*
 	 * registers modified:
@@ -295,5 +296,10 @@ os_hpmc_6:
 	b .
 	nop
 ENDPROC(os_hpmc)
-ENTRY(os_hpmc_end)	/* this label used to compute os_hpmc checksum */
+.os_hpmc_end:
 	nop
+.data
+.align 4
+	.export os_hpmc_size
+os_hpmc_size:
+	.word .os_hpmc_end-.os_hpmc
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 4c771cd..cbf4794 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -821,8 +852,8 @@ void handle_interruption(int code, struct pt_regs *regs)
 
 int __init check_ivt(void *iva)
 {
-	extern const u32 os_hpmc[];
-	extern const u32 os_hpmc_end[];
+	extern u32 os_hpmc_size;
+	extern const u32 os_hpmc[];
 
 	int i;
 	u32 check = 0;
@@ -839,8 +870,7 @@ int __init check_ivt(void *iva)
 	    *ivap++ = 0;
 
 	/* Compute Checksum for HPMC handler */

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Kyle McMartin wrote:
> diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
> index 2cbf13b..5595a2f 100644
> --- a/arch/parisc/kernel/hpmc.S
> +++ b/arch/parisc/kernel/hpmc.S
> @@ -80,6 +80,7 @@ END(hpmc_pim_data)
>  
>  	.import intr_save, code
>  ENTRY(os_hpmc)
> +.os_hpmc:

ENTRY(os_hpmc) already expands to
os_hpmc:

so you could

> +	.word .os_hpmc_end-.os_hpmc

change this to 
	.word .os_hpmc_end-os_hpmc
and drop the local label ".os_hpmc"

Helge
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if you build lzma-4.32.7 with gcc-4.3 and -march=3D2.0, then lzma segfaults=
 when=20
trying to do anything useful.  gcc-4.1 has no problem here.

to reproduce, just download lzma-4.32.7.tar.gz and do:
tar xf lzma-4.32.7.tar.gz
cd lzma-4.32.7
CXXFLAGS=3D'-O1 -march=3D2.0 -g' ./configure
make
make check

Guy Martin narrowed it down to the code in src/sdk/7zip/Compress/LZMA/ ... =
if=20
we build the encoder/decoder without -march=3D2.0, then the tests pass and =
life=20
is peachy.  with a little bit of patience, i think i narrowed down a bit=20
further to the function CDecoder::SetDecoderProperties2().  we can build th=
e=20
rest of the file with -march=3D2.0, but when we build this function with -
march=3D2.0, then it craps out.  the code in question has a bit of funky ca=
sting=20
from a byte array up to uint32's, but i dont think this is an alignment iss=
ue.

i'm attaching the preprocessed file which can then be compared:
g++ -O1 -c LZMADecoder.i -march=3D2.0 -o LZMADecoder.bad.o
g++ -O1 -c LZMADecoder.i -o LZMADecoder.good.o

the kernel logs the fault like so:
do_page_fault() pid=3D15903 command=3D'lzma' type=3D15 address=3D0x00000063

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111 Not tainted
r00-03  0004000f 0001b800 0001c217 00000005
r04-07  000320e8 00356e06 00000019 00040000
r08-11  000320b0 fb12c810 fb12c6c4 00000000
r12-15  fb12c6c0 00000000 00030790 fb12c010
r16-19  00030794 00029d74 0002a8a8 00000063
r20-23  00000000 00000400 00000003 fb12c9c8
r24-27  00100000 4008f008 00000003 0002fcbc
r28-31  00000060 00000000 fb12c980 00000000
sr00-03  00000006 00000000 00000000 00000006
sr04-07  00000006 00000006 00000006 00000006

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
=46PSR: 00000000000000000000000000000000
=46PER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  1267d000cfed0968 00000020101683f0 106238101061f810 bff0000000000000
fr08-11  fffff0001267d000 0000000200000003 0000000012729840 ffffff9c00000002
fr12-15  fb6ab02c00000001 000cc542101737c8 10101a281061f810 126840883b9aca00
fr16-19  104aed9c106238a8 fffffff412684208 105902f6105902f7 000000000000000b
fr20-23  1055d8100000000f 1055d810101687b4 0000000800000002 00001c2c00000000
fr24-27  0000000000000000 000000004ccd4eed fce2fc640b19f33d 8c4f289cb1314a9a
fr28-31  0701fb1163036696 8a9012eac57c0709 0701fb1100000228 0a4ed1f910111908

IASQ: 00000006 00000006 IAOQ: 0001b9f3 0001b9f7
 IIR: 0e751280    ISR: 00000006  IOR: 00000063
 CPU:        0   CR30: 93704000 CR31: 10600000
 ORIG_R28: 00000000
 IAOQ[0]: 0x1b9f0
 IAOQ[1]: 0x1b9f4
 RP(r2): 0x1c214
=2Dmike

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From - Thu Nov 08 21:03:24 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: bad code with gcc-4.3 and lzma-utils ?
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To: Mike Frysinger <vapier@gentoo.org>
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On Sat, Jan 03, 2009 at 07:45:01AM -0500, Mike Frysinger wrote:
> the kernel logs the fault like so:
> do_page_fault() pid=15903 command='lzma' type=15 address=0x00000063

That's a null pointer dereference ...

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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From - Thu Nov 08 21:03:24 2018
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From: Krzysztof Halasa <khc@pm.waw.pl>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] kbuild: Disallow GCC 4.1.0 / 4.1.1
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Cc: Sam Ravnborg <sam@ravnborg.org>, Ingo Molnar <mingo@elte.hu>,
	David Miller <davem@davemloft.net>,
	Andrew Morton <akpm@linux-foundation.org>, rdreier@cisco.com,
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	linux-kernel@vger.kernel.org, kyle@mcmartin.ca, randolph@tausq.org,
	dave@hiauly1.hia.nrc.ca
To: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds <torvalds@linux-foundation.org> writes:

> I realize that cross-tools tend to lag a bit - the pressure to maintain 
> them tends to be much lower - but I was sure we had somebody who did a 
> reasonable cross-compiler toolchain. Is gcc-4.1 really the most modern 
> thing that is easily available?

Not sure about crosstool and other platforms but I'm using gcc 4.3.2+
for ARM (on x86_64) and building it is straightforward. Just unpack
binutils, gcc (and optionally glibc); configure; make; make install.
Prerequisites: kernel headers and minimal glibc installed.
(Some recent glibc versions require a patch or two).
-- 
Krzysztof Halasa
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On Sat, Jan 03, 2009 at 10:24:33AM +0100, Helge Deller wrote:
> Kyle McMartin wrote:
> > diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
> > index 2cbf13b..5595a2f 100644
> > --- a/arch/parisc/kernel/hpmc.S
> > +++ b/arch/parisc/kernel/hpmc.S
> > @@ -80,6 +80,7 @@ END(hpmc_pim_data)
> >  
> >  	.import intr_save, code
> >  ENTRY(os_hpmc)
> > +.os_hpmc:
> 
> ENTRY(os_hpmc) already expands to
> os_hpmc:
> 
> so you could
> 
> > +	.word .os_hpmc_end-.os_hpmc
> 
> change this to 
> 	.word .os_hpmc_end-os_hpmc
> and drop the local label ".os_hpmc"
> 

In his previous mail JDA said to use local labels for safety...
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From - Thu Nov 08 21:03:25 2018
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Subject: Re: [PATCH] export length of os_hpmc vector
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> > change this to 
> > 	.word .os_hpmc_end-os_hpmc
> > and drop the local label ".os_hpmc"
> > 
> 
> In his previous mail JDA said to use local labels for safety...

The important thing is to ensure that the diff is an absolute value,
and that there's no relocation for the diff.

Diffs are tricky.  There may be a stub associated with os_hpmc.  I know
gdb sometimes gets confused between the stub and real entry point of
a function, and GCC always uses local labels in the exception and debug
tables.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: bad code with gcc-4.3 and lzma-utils ?
Date: Sat, 3 Jan 2009 12:21:25 -0500 (EST)
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> to reproduce, just download lzma-4.32.7.tar.gz and do:
> tar xf lzma-4.32.7.tar.gz
> cd lzma-4.32.7
> CXXFLAGS=3D'-O1 -march=3D2.0 -g' ./configure
> make
> make check

Built as above.  I see a segv compressing InBuffer.o in build directory.

Program received signal SIGSEGV, Segmentation fault.
0x00024638 in NCompress::NLZMA::CEncoder::SetStreams (this=0x4158f000, 
    inStream=0x0, outStream=0x3, inSize=0x12, outSize=0x0)
    at ../../../../../../src/sdk/7zip/Compress/LZMA/LZMAEncoder.cpp:1251
1251	  RINOK(Create());

There is a problem with memory allocation in MyAlloc:

Breakpoint 2, MyAlloc (size=72355848) at ../../../src/sdk/Common/Alloc.cpp:24
24	  if (size == 0)

This fails:

(gdb) 
NBT4::CMatchFinderBinTree::Create (this=0x32100, historySize=8388608, 
    keepAddBufferBefore=<value optimized out>, 
    matchMaxLen=<value optimized out>, keepAddBufferAfter=419)
    at ../../../../../../src/sdk/7zip/Compress/LZMA/../LZ/BinTree/BinTreeMain.h:97
97	    if (_hash != 0)
(gdb) 
101	  return E_OUTOFMEMORY;

There isn't a check for out of memory at 1251, so segv.  Don't have time
now to look at memory allocation problem.

Dave
-- 
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Hi Dave,

Could you do the very same test with -fno-delayed-branch ?

Compiling without that optimization on my system makes the problem go
away. It is really a problem with that part of the code and delayed
branching.

This has been tested with different versions of gcc (4.1.2, 4.2.4,
4.3.1). Both 4.2 and 4.3 exhibit the issue once you compile with
-march=2.0 and -fdelayed-branch.

Also, compiling with -march=2.0 -O0 -fdelayed-branch doesn't produce a
segv but produces the following error message :
hope tests # ../src/lzma/lzma -c < in > out 
../src/lzma/lzma: SetCoderProperties() error

There is really a compiler issue here.


For reference, the Gentoo bug can be found here :
http://bugs.gentoo.org/show_bug.cgi?id=228287


Also, not sure if you noticed but values printed in the gdb backtrace
are completely wrong. But that is a different issue as binaries
generated with any compilers shows the same thing.


Regards,
  Guy

On Sat, 3 Jan 2009 12:21:25 -0500 (EST)
"John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:

> > to reproduce, just download lzma-4.32.7.tar.gz and do:
> > tar xf lzma-4.32.7.tar.gz
> > cd lzma-4.32.7
> > CXXFLAGS=3D'-O1 -march=3D2.0 -g' ./configure
> > make
> > make check
> 
> Built as above.  I see a segv compressing InBuffer.o in build
> directory.
> 
> Program received signal SIGSEGV, Segmentation fault.
> 0x00024638 in NCompress::NLZMA::CEncoder::SetStreams
> (this=0x4158f000, inStream=0x0, outStream=0x3, inSize=0x12,
> outSize=0x0)
> at ../../../../../../src/sdk/7zip/Compress/LZMA/LZMAEncoder.cpp:1251
> 1251	  RINOK(Create());
> 
> There is a problem with memory allocation in MyAlloc:
> 
> Breakpoint 2, MyAlloc (size=72355848)
> at ../../../src/sdk/Common/Alloc.cpp:24 24	  if (size == 0)
> 
> This fails:
> 
> (gdb) 
> NBT4::CMatchFinderBinTree::Create (this=0x32100, historySize=8388608, 
>     keepAddBufferBefore=<value optimized out>, 
>     matchMaxLen=<value optimized out>, keepAddBufferAfter=419)
>     at ../../../../../../src/sdk/7zip/Compress/LZMA/../LZ/BinTree/BinTreeMain.h:97
> 97	    if (_hash != 0)
> (gdb) 
> 101	  return E_OUTOFMEMORY;
> 
> There isn't a check for out of memory at 1251, so segv.  Don't have
> time now to look at memory allocation problem.
> 
> Dave

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> Could you do the very same test with -fno-delayed-branch ?
> 
> Compiling without that optimization on my system makes the problem go
> away. It is really a problem with that part of the code and delayed
> branching.

That's useful information as it narrows the problem considerably.  The
problem might be in the PA backend delay slot handling for PA 2.0 32-bit
calls, or it might be a reorg problem.  The latter are very tricky.

> This has been tested with different versions of gcc (4.1.2, 4.2.4,
> 4.3.1). Both 4.2 and 4.3 exhibit the issue once you compile with
> -march=2.0 and -fdelayed-branch.
> 
> Also, compiling with -march=2.0 -O0 -fdelayed-branch doesn't produce a
> segv but produces the following error message :
> hope tests # ../src/lzma/lzma -c < in > out 
> ../src/lzma/lzma: SetCoderProperties() error
> 
> There is really a compiler issue here.

We need to find by debugging an example of code that is miscompiled.

> Also, not sure if you noticed but values printed in the gdb backtrace
> are completely wrong. But that is a different issue as binaries
> generated with any compilers shows the same thing.

Yes, it's a major problem for debugging and it has gotten worse with
each new GCC versions.  There have been some discussions on the list
about how to improve debugging information.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > Also, compiling with -march=2.0 -O0 -fdelayed-branch doesn't produce a
> > segv but produces the following error message :
> > hope tests # ../src/lzma/lzma -c < in > out 
> > ../src/lzma/lzma: SetCoderProperties() error

With this case, I see the following miscompilation:

0x0002e860 <_ZN9NCompress5NLZMA8CEncoder18SetCoderPropertiesEPKjPK14tagPROPVARIANTj+496>:	ldil L%29000,r1
0x0002e864 <_ZN9NCompress5NLZMA8CEncoder18SetCoderPropertiesEPKjPK14tagPROPVARIANTj+500>:	be,l 554(sr4,r1),sr0,r31
0x0002e868 <_ZN9NCompress5NLZMA8CEncoder18SetCoderPropertiesEPKjPK14tagPROPVARIANTj+504>:	copy r31,rp
0x0002e86c <_ZN9NCompress5NLZMA8CEncoder18SetCoderPropertiesEPKjPK14tagPROPVARIANTj+508>:	copy ret0,r26

The delay slot for the branch is filled twice.  So for now, don't use
-march=2.0 in 32-bit compilations.  4.1 is probably broken too.  The
second copy instruction was supposed to have been moved before the call.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: bad code with gcc-4.3 and lzma-utils ?
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> Also, compiling with -march=2.0 -O0 -fdelayed-branch doesn't produce a
> segv but produces the following error message :
> hope tests # ../src/lzma/lzma -c < in > out 
> ../src/lzma/lzma: SetCoderProperties() error
> 
> There is really a compiler issue here.

The problem was introduced in revision 68677 on June 29, 2003 when
a change was made to allow ble to be used for local calls.  So, the
problem is present in all versions back to at least 3.4.

The following change should fix the bug.  I'm currently doing a full
build to test.

Thanks for reporting the problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: config/pa/pa.c
===================================================================
--- config/pa/pa.c	(revision 143056)
+++ config/pa/pa.c	(working copy)
@@ -7547,7 +7547,9 @@
 	  if (seq_length != 0
 	      && GET_CODE (NEXT_INSN (insn)) != JUMP_INSN
 	      && !sibcall
-	      && (!TARGET_PA_20 || indirect_call))
+	      && (!TARGET_PA_20
+		  || indirect_call
+		  || (TARGET_LONG_ABS_CALL || local_call) && !flag_pic))
 	    {
 	      /* A non-jump insn in the delay slot.  By definition we can
 		 emit this insn before the call (and in fact before argument
--
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Subject: Re: bad code with gcc-4.3 and lzma-utils ?
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On Sun, 4 Jan 2009 15:16:40 -0500 (EST)
"John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:


> The problem was introduced in revision 68677 on June 29, 2003 when
> a change was made to allow ble to be used for local calls.  So, the
> problem is present in all versions back to at least 3.4.
> 
> The following change should fix the bug.  I'm currently doing a full
> build to test.

I just tested this patch with 4.2.4 and it worked fine !

Thanks for the fix.

Cheers,
  Guy
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> I just tested this patch with 4.2.4 and it worked fine !

Sigh, I messed up the parens, but its the right idea.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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Guy,

> I just tested this patch with 4.2.4 and it worked fine !

Would you please try this.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: config/pa/pa.c
===================================================================
--- config/pa/pa.c	(revision 143062)
+++ config/pa/pa.c	(working copy)
@@ -7547,7 +7547,9 @@
 	  if (seq_length != 0
 	      && GET_CODE (NEXT_INSN (insn)) != JUMP_INSN
 	      && !sibcall
-	      && (!TARGET_PA_20 || indirect_call))
+	      && (!TARGET_PA_20
+		  || indirect_call
+		  || ((TARGET_LONG_ABS_CALL || local_call) && !flag_pic)))
 	    {
 	      /* A non-jump insn in the delay slot.  By definition we can
 		 emit this insn before the call (and in fact before argument
--
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On Sun, 4 Jan 2009 18:42:02 -0500 (EST)
"John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:

> Would you please try this.

It did work too.

  Guy
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New commits:
commit ae16489eb1175066c8f3008fc3c0396c525e1906
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Sat Jan 3 06:35:40 2009 +0000

    parisc: export length of os_hpmc vector
    
    and use this instead of dealing with exporting start/end and
    toying with function descriptors.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit c61c25eb02757ecf697015ef4ae3675c5e114e2e
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Sat Dec 20 02:29:06 2008 +0000

    parisc: fix kernel crash (protection id trap) when compiling ruby1.9
    
    On Wed, Dec 17, 2008 at 11:46:05PM +0100, Helge Deller wrote:
    >
    
    Honestly, I can't decide whether to apply this. It really should never
    happen in the kernel, since the kernel can guarantee it won't get the
    access rights failure (highest privilege level, and can set %sr and
    %protid to whatever it wants.)
    
    It really genuinely is a bug that probably should panic the kernel. The
    only precedent I can easily see is x86 fixing up a bad iret with a
    general protection fault, which is more or less analogous to code 27
    here.
    
    On the other hand, taking the exception on a userspace access really
    isn't all that critical, and there's fundamentally little reason for the
    kernel not to SIGSEGV the process, and continue...
    
    Argh.
    
    (btw, I've instrumented my do_sys_poll with a pile of assertions that
     %cr8 << 1 == %sr3 == current->mm.context... let's see if where we're
     getting corrupted is deterministic, though, I would guess that it won't
     be.)
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit aefa8b6bf48fdcc904de4f166e59ab37fb750dec
Author: Julia Lawall <julia@diku.dk>
Date:   Thu Dec 25 19:33:11 2008 +0000

    parisc: Use DEFINE_SPINLOCK
    
    SPIN_LOCK_UNLOCKED is deprecated.  The following makes the change suggested
    in Documentation/spinlocks.txt
    
    The semantic patch that makes this change is as follows:
    (http://www.emn.fr/x-info/coccinelle/)
    
    // <smpl>
    @@
    declarer name DEFINE_SPINLOCK;
    identifier xxx_lock;
    @@
    
    - spinlock_t xxx_lock = SPIN_LOCK_UNLOCKED;
    + DEFINE_SPINLOCK(xxx_lock);
    // </smpl>
    
    Signed-off-by: Julia Lawall <julia@diku.dk>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 7246c31e45021bc68688c4a8fd2bbb70b485d1ef
Author: Helge Deller <deller@gmx.de>
Date:   Thu Dec 25 20:04:00 2008 +0000

    parisc: add uevent helper for parisc bus
    
    parisc: add uevent helper for parisc bus
    
    udev device-driver auto detection was failing to work on the GSC bus, since
    udev didn't knew wich driver to load due to a missing MODALIAS environment
    variable from kernel.
    
    This patch fixes this by adding the MODALIAS environment variable to the
    uevent kernel notifications.
    Since modalias_show() generated the modalias string already, I splitted this
    out and created a new static function make_modalias() which is now used by
    modalias_show() and the new parisc_uevent() function.
    
    Tested on 715/64 and c3000.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 5fbf6635a951a75870be9874580c55da538fb025
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Mon Dec 8 05:15:51 2008 +0000

    parisc: fix ipv6 checksum
    
    ipv6 recently started exhibiting the same symptoms as ipv4 was, add
    a memory clobber around inline checksum assembly that fribbles memory
    to ensure gcc doesn't erroneously cache across it.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 6525ee55bbfd35bf3aff8c59562d6a3d8559a4f0
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Mon Dec 8 09:43:08 2008 +0000

    parisc: quiet palo not-found message from "which"
    
    Reduces moaning when building on a machine without palo installed.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit ef017bebd01c1b4e075d649eee0c8c1c79f9ceb9
Author: Helge Deller <deller@gmx.de>
Date:   Wed Dec 31 03:12:10 2008 +0000

    parisc: Replace NR_CPUS in parisc code
    
    parisc: Replace most arrays sized by NR_CPUS with percpu variables.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 7f2347a44d2d5c8edf04d6950f4fb21ac868d256
Author: Helge Deller <deller@gmx.de>
Date:   Wed Dec 31 03:11:31 2008 +0000

    parisc: trivial fixes
    
    trivial fixes:
    - use KERN_WARNING for printk()
    - use BUG_ON() instead of "if (xx) BUG();"
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
    
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From - Thu Nov 08 21:03:26 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: HPPA and lenny (ruby1.9 build problems)
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To: dann frazier <dannf@dannf.org>, Helge Deller <deller@gmx.de>,
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CC: linux-paric mailing list

Peter Palfrader wrote:
> On Mon, 05 Jan 2009, dann frazier wrote:
> 
>> On Tue, Dec 23, 2008 at 11:43:22AM +0100, Helge Deller wrote:
>>> Peter Palfrader wrote:
>>>> Helge Deller schrieb am Dienstag, dem 23. Dezember 2008:
>>>>
>>>>> Patch in parisc git tree:
>>>>> http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commitdiff;h=378fe7c4cc619b561409206605c723c05358edac;hp=6c4dfa8f8bcf032137aacb3640d7dd9d75b2b607
>>>> So just using an SMP kernel should also work?
>>> Probably yes, since some other developers tried initially to reproduce
>>> the problem, but they couldn't (as it seems they were running on newer
>>> SMP machines). But I don't have a SMP server which is why I can't test
>>> myself...
>> Unfortunately, it looks like we're still having problems on the
>> buildds w/ 2.6.26 SMP kernels:
>>   http://buildd.debian.org/build.php?&pkg=ruby1.9&ver=1.9.0.2-9&arch=hppa&file=log
>>
>> The build doesn't take the system down, but does still hang
>> indefinitely while running miniruby - though the hang location varies.
>>
>> I'll prepare a UP kernel for one of the buildds w/ the
>> up-optimization-removal patch just to see if it improves things. I
>> don't see why it would, other than it seemed to solve the problem on
>> my test box when I first tested the patch.

It seemed to fix the problem for me as well.
In principle looking at the logs it looks more like a userspace bugs
due to threading functions.
Anyway, I'll try to reproduce it here as well.
FWIW, I had some additional irq locking code in load_context(), maybe 
this helps...?

> Yeah, penalosa got stuck again today, this was on the console:

Does panalosa has the patched kernel (same one as the one on peri) ?
The protection ID traps shouldn't happen any longer, and from the buildd
logs on peri it does seem like that the ProtID traps don't happen there.

Helge

> ...
> [18255061.952000]                                                               
> [18255240.024000] install (pid 15737): Protection id trap (code 27) at
> 000000004038d203                                                                         
> [18255240.116000] Backtrace:                                                    
> [18255240.148000]                                                               
> [18255258.720000] dpkg-deb (pid 15897): Protection id trap (code 27) at 00000000
> 4035defb                                                                        
> [18255258.812000] Backtrace:                                                    
> [18255258.844000]                                                               
> [18260696.284000] dpkg-deb (pid 13540): Protection id trap (code 27) at 00000000
> 00026f1b                                                                        
> [18260696.376000] Backtrace:                                                    
> [18260696.408000]                                                               
> [18289955.716000] ------------[ cut here ]------------                          
> [18289955.776000] kernel BUG at fs/inode.c:262!        

I think this bug is unrelated to the ruby1.9 issue.
                         
> [18289955.824000]                                                               
> [18289955.848000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                         
> [18289955.908000] PSW: 00001000000001001111111100001111 Tainted: G      D       
> [18289955.988000] r00-03  000000ff0804ff0f 00000000401e7888 00000000401e78a4 00000000a7d1d750                                                                   
> [18289956.084000] r04-07  00000000405c9660 00000000a7d1d750 00000000404a5d40 000000012db86400                                                                   
> [18289956.184000] r08-11  fffffffffffff000 0000000000017800 00000000000dc2f7 000000012f871828                                                                   
> [18289956.284000] r12-15  000000007f9d7000 00000000000e7d58 00000000000081a4 0000000000000001                                                                   
> [18289956.384000] r16-19  00000000000ad800 00000000000ad800 00000000000f4648 0000000040501e4c                                                                   
> [18289956.480000] r20-23  000000000800000f 000000000800000f 000000012e623b40 0000000000000000                                                                   
> [18289956.580000] r24-27  000000012f93a2c8 0000000000000000 00000000a7d1d750 00000000405c9660                                                                   
> [18289956.680000] r28-31  0000000000000002 000000007d800690 000000007d8006c0 00000000002ac810                                                                   
> [18289956.780000] sr00-03  0000000003ab8800 0000000000000000 0000000000000000 0000000003da5800                                                                  
> [18289956.880000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000                                                                  
> [18289956.980000]                                                               
> [18289957.000000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401e78b0 00000000401e78b4                                                               
> [18289957.104000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000f6000006c8
> [18289957.188000]  CPU:        0   CR30: 000000007d800000 CR31: 0000000011111111
> [18289957.272000]  ORIG_R28: 0000000000001000                                   
> [18289957.324000]  IAOQ[0]: clear_inode+0x28/0x178                              
> [18289957.376000]  IAOQ[1]: clear_inode+0x2c/0x178                              
> [18289957.432000]  RP(r2): clear_inode+0x1c/0x178                               
> [18289957.484000] Backtrace:                                                    
> [18289957.516000]  [<00000000002b8844>] ext3_free_inode+0x19c/0x540 [ext3]      
> [18289957.596000]  [<00000000002bd0e0>] ext3_delete_inode+0x138/0x178 [ext3]    
> [18289957.676000]  [<00000000401e7bb8>] generic_delete_inode+0x120/0x1e0        
> [18289957.756000]  [<00000000401e7ca4>] generic_drop_inode+0x2c/0x200           
> [18289957.828000]  [<00000000401e6f50>] iput+0x80/0x90                          
> [18289957.888000]  [<00000000401da980>] do_unlinkat+0x1b0/0x278                 
> [18289957.956000]  [<00000000401daa60>] sys_unlink+0x18/0x28                    
> [18289958.020000]  [<0000000040104ef8>] syscall_exit+0x0/0x14                   
> [18289958.084000]                                                               
> [18289958.108000] Backtrace:                                                    
> [18289958.136000]  [<000000004011b154>] show_stack+0x14/0x20                    
> [18289958.204000]  [<000000004011b178>] dump_stack+0x18/0x28                    
> [18289958.268000]  [<000000004011b90c>] die_if_kernel+0x17c/0x230               
> [18289958.336000]  [<000000004011bc58>] handle_interruption+0x298/0x7f0         
> [18289958.412000]  [<00000000401e78b0>] clear_inode+0x28/0x178                  
> [18289958.480000]  [<00000000002b8844>] ext3_free_inode+0x19c/0x540 [ext3]      
> [18289958.560000]  [<00000000002bd0e0>] ext3_delete_inode+0x138/0x178 [ext3]    
> [18289958.640000]  [<00000000401e7bb8>] generic_delete_inode+0x120/0x1e0        
> [18289958.716000]  [<00000000401e7ca4>] generic_drop_inode+0x2c/0x200           
> [18289958.792000]  [<00000000401e6f50>] iput+0x80/0x90                          
> [18289958.852000]  [<00000000401da980>] do_unlinkat+0x1b0/0x278                 
> [18289958.916000]  [<00000000401daa60>] sys_unlink+0x18/0x28                    
> [18289958.984000]  [<0000000040104ef8>] syscall_exit+0x0/0x14                   
> [18289959.048000]                                                               

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From - Thu Nov 08 21:03:26 2018
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From: dann frazier <dannf@dannf.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
Subject: Re: HPPA and lenny (ruby1.9 build problems)
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Cc: Matt Taggart <taggart@debian.org>,
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To: Helge Deller <deller@gmx.de>
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On Tue, Jan 06, 2009 at 12:46:34AM +0100, Helge Deller wrote:
> CC: linux-paric mailing list
> 
> Peter Palfrader wrote:
> > On Mon, 05 Jan 2009, dann frazier wrote:
> > 
> >> On Tue, Dec 23, 2008 at 11:43:22AM +0100, Helge Deller wrote:
> >>> Peter Palfrader wrote:
> >>>> Helge Deller schrieb am Dienstag, dem 23. Dezember 2008:
> >>>>
> >>>>> Patch in parisc git tree:
> >>>>> http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commitdiff;h=378fe7c4cc619b561409206605c723c05358edac;hp=6c4dfa8f8bcf032137aacb3640d7dd9d75b2b607
> >>>> So just using an SMP kernel should also work?
> >>> Probably yes, since some other developers tried initially to reproduce
> >>> the problem, but they couldn't (as it seems they were running on newer
> >>> SMP machines). But I don't have a SMP server which is why I can't test
> >>> myself...
> >> Unfortunately, it looks like we're still having problems on the
> >> buildds w/ 2.6.26 SMP kernels:
> >>   http://buildd.debian.org/build.php?&pkg=ruby1.9&ver=1.9.0.2-9&arch=hppa&file=log
> >>
> >> The build doesn't take the system down, but does still hang
> >> indefinitely while running miniruby - though the hang location varies.
> >>
> >> I'll prepare a UP kernel for one of the buildds w/ the
> >> up-optimization-removal patch just to see if it improves things. I
> >> don't see why it would, other than it seemed to solve the problem on
> >> my test box when I first tested the patch.
> 
> It seemed to fix the problem for me as well.

fyi, I tested w/ a 2.6.26 32-bit UP kernel w/ the
up-optimization-removal patch, and received another hang:
 http://buildd.debian.org/fetch.cgi?pkg=ruby1.9;ver=1.9.0.2-9;arch=hppa;stamp=1231212073

> In principle looking at the logs it looks more like a userspace bugs
> due to threading functions.
> Anyway, I'll try to reproduce it here as well.
> FWIW, I had some additional irq locking code in load_context(), maybe 
> this helps...?

I'd be happy to test it if you can point me to a changeset.

> > Yeah, penalosa got stuck again today, this was on the console:
> 
> Does panalosa has the patched kernel (same one as the one on peri) ?

Both machines were running an unpatched SMP 2.6.26 until I upgraded
penalosa for the test I refer to above. The thinking being that -
though these machines are single CPU - the SMP version should avoid
the UP optimization code.

> The protection ID traps shouldn't happen any longer, and from the buildd
> logs on peri it does seem like that the ProtID traps don't happen there.

There were no protection trap messages in penalosa's dmesg after the
above hang. In fact, it contains nothing other than bootup messages.

> Helge

Thanks for all your help so far - its really appreciated.

-- 
dann frazier

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From - Thu Nov 08 21:03:26 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: bad code with gcc-4.3 and lzma-utils ?
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> On Sun, 4 Jan 2009 18:42:02 -0500 (EST)
> "John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:
> 
> > Would you please try this.
> 
> It did work too.

I installed the patch on the gcc trunk (4.4).  However, there are still
issues.  The patch didn't fix the -O0 -fdelayed-branch error.  I have
traced this to a middle-end bug:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38740

There's also a nagging issue.  There would appear to be a problem
with the branch distance calculation.  The "be,l" instruction should
not have been used.  A "b,l" is supposed to be ok if the branch
distance is less than 7600000 bytes.  The code in this file is not
that big.  This may be the reason for the apparent regression.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Mike Frysinger <vapier@gentoo.org>
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Subject: Re: bad code with gcc-4.3 and lzma-utils ?
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On Monday 05 January 2009 23:40:57 John David Anglin wrote:
> > On Sun, 4 Jan 2009 18:42:02 -0500 (EST) John David Anglin wrote:
> > > Would you please try this.
> >
> > It did work too.
>
> I installed the patch on the gcc trunk (4.4).  However, there are still
> issues.  The patch didn't fix the -O0 -fdelayed-branch error.  I have
> traced this to a middle-end bug:

thanks a lot for looking into this.  do you plan on adding the patch to the=
=20
4.3 branch as well ?
=2Dmike

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From - Thu Nov 08 21:03:26 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: BUG_ON() cleanup
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- convert a few "if (xx) BUG();" to BUG_ON(xx)
- remove a few printk()s, as we get a backtrace with BUG_ON() anyway

Signed-off-by: Helge Deller <deller@gmx.de>

 kernel/cache.c   |    5 +----
 kernel/pci-dma.c |   22 ++++++----------------
 mm/init.c        |    6 ++----
 3 files changed, 9 insertions(+), 24 deletions(-)


diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 5259d8c..837530e 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -551,10 +551,7 @@ void flush_cache_range(struct vm_area_struct *vma,
 {
 	int sr3;
 
-	if (!vma->vm_mm->context) {
-		BUG();
-		return;
-	}
+	BUG_ON(!vma->vm_mm->context);
 
 	sr3 = mfsp(3);
 	if (vma->vm_mm->context == sr3) {
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index ccd61b9..7fae3a8 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -447,10 +447,7 @@ static void pa11_dma_free_consistent (struct device *dev, size_t size, void *vad
 
 static dma_addr_t pa11_dma_map_single(struct device *dev, void *addr, size_t size, enum dma_data_direction direction)
 {
-	if (direction == DMA_NONE) {
-		printk(KERN_ERR "pa11_dma_map_single(PCI_DMA_NONE) called by %p\n", __builtin_return_address(0));
-		BUG();
-	}
+	BUG_ON(direction == DMA_NONE);
 
 	flush_kernel_dcache_range((unsigned long) addr, size);
 	return virt_to_phys(addr);
@@ -458,10 +455,7 @@ static dma_addr_t pa11_dma_map_single(struct device *dev, void *addr, size_t siz
 
 static void pa11_dma_unmap_single(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction direction)
 {
-	if (direction == DMA_NONE) {
-		printk(KERN_ERR "pa11_dma_unmap_single(PCI_DMA_NONE) called by %p\n", __builtin_return_address(0));
-		BUG();
-	}
+	BUG_ON(direction == DMA_NONE);
 
 	if (direction == DMA_TO_DEVICE)
 	    return;
@@ -480,8 +474,7 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int n
 {
 	int i;
 
-	if (direction == DMA_NONE)
-	    BUG();
+	BUG_ON(direction == DMA_NONE);
 
 	for (i = 0; i < nents; i++, sglist++ ) {
 		unsigned long vaddr = sg_virt_addr(sglist);
@@ -496,8 +489,7 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, in
 {
 	int i;
 
-	if (direction == DMA_NONE)
-	    BUG();
+	BUG_ON(direction == DMA_NONE);
 
 	if (direction == DMA_TO_DEVICE)
 	    return;
@@ -511,16 +503,14 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, in
 
 static void pa11_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
 {
-	if (direction == DMA_NONE)
-	    BUG();
+	BUG_ON(direction == DMA_NONE);
 
 	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
 }
 
 static void pa11_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
 {
-	if (direction == DMA_NONE)
-	    BUG();
+	BUG_ON(direction == DMA_NONE);
 
 	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
 }
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 7c155c2..9d704d9 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -304,10 +304,8 @@ static void __init setup_bootmem(void)
 	 */
 	max_low_pfn = max_pfn;
 
-	if ((bootmap_pfn - bootmap_start_pfn) != bootmap_pages) {
-		printk(KERN_WARNING "WARNING! bootmap sizing is messed up!\n");
-		BUG();
-	}
+	/* bootmap sizing messed up? */
+	BUG_ON((bootmap_pfn - bootmap_start_pfn) != bootmap_pages);
 
 	/* reserve PAGE0 pdc memory, kernel text/data/bss & bootmap */
 
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- blink loadavg LEDs only (not all LEDs) twice a second on Oops
- cancel_rearming_delayed_workqueue() is obsolete, 
  use cancel_delayed_work_sync() instead

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index f9b1266..0cb4862 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -3,7 +3,7 @@
  *
  *      (c) Copyright 2000 Red Hat Software
  *      (c) Copyright 2000 Helge Deller <hdeller@redhat.com>
- *      (c) Copyright 2001-2005 Helge Deller <deller@gmx.de>
+ *      (c) Copyright 2001-2009 Helge Deller <deller@gmx.de>
  *      (c) Copyright 2001 Randolph Chung <tausq@debian.org>
  *
  *      This program is free software; you can redistribute it and/or modify
@@ -463,9 +463,13 @@ static void led_work_func (struct work_struct *unused)
 	if (likely(led_lanrxtx))  currentleds |= led_get_net_activity();
 	if (likely(led_diskio))   currentleds |= led_get_diskio_activity();
 
-	/* blink all LEDs twice a second if we got an Oops (HPMC) */
-	if (unlikely(oops_in_progress)) 
-		currentleds = (count_HZ<=(HZ/2)) ? 0 : 0xff;
+	/* blink loadavg LEDs twice per second if we got an Oops (HPMC) */
+	if (unlikely(oops_in_progress)) {
+		if (count_HZ <= (HZ/2))
+			currentleds &= ~(LED4|LED5|LED6|LED7);
+		else
+			currentleds |= (LED4|LED5|LED6|LED7);
+	}
 
 	if (currentleds != lastleds)
 	{
@@ -511,7 +515,7 @@ static int led_halt(struct notifier_block *nb, unsigned long event, void *buf)
 	
 	/* Cancel the work item and delete the queue */
 	if (led_wq) {
-		cancel_rearming_delayed_workqueue(led_wq, &led_task);
+		cancel_delayed_work_sync(&led_task);
 		destroy_workqueue(led_wq);
 		led_wq = NULL;
 	}
@@ -630,7 +634,7 @@ int lcd_print( const char *str )
 	
 	/* temporarily disable the led work task */
 	if (led_wq)
-		cancel_rearming_delayed_workqueue(led_wq, &led_task);
+		cancel_delayed_work_sync(&led_task);
 
 	/* copy display string to buffer for procfs */
 	strlcpy(lcd_text, str, sizeof(lcd_text));
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Subject: Re: bad code with gcc-4.3 and lzma-utils ?
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> do you plan on adding the patch to the 4.3 branch as well ?

Yes, but I want to study why this branch sequence is actually
being used in this situation.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, 2009-01-06 at 12:57 +0100, Helge Deller wrote:
> - convert a few "if (xx) BUG();" to BUG_ON(xx)

This is fine

> - remove a few printk()s, as we get a backtrace with BUG_ON() anyway

This is less helpful.  Each of the printks explains why the bug
triggers.  In theory you can work this out from the BUG_ON line number,
but *only* if your source files match those of the reporter, which isn't
the case in an annoyingly large number of bug reports ... speaking as
someone who seems to get to diagnose large numbers of bugs, it makes my
life harder.

James


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On Tue, Jan 6, 2009 at 2:23 PM, Helge Deller <deller@gmx.de> wrote:
> - blink loadavg LEDs only (not all LEDs) twice a second on Oops

Just out of curiosity, why wouldn't you want to have all leds blinking
on something as serious as an Oops? I kind of liked to clearly see
when something went wrong...

Cheers

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Thibaut VARENE wrote:
> On Tue, Jan 6, 2009 at 2:23 PM, Helge Deller <deller@gmx.de> wrote:
>> - blink loadavg LEDs only (not all LEDs) twice a second on Oops
> 
> Just out of curiosity, why wouldn't you want to have all leds blinking
> on something as serious as an Oops? I kind of liked to clearly see
> when something went wrong...

Yeah, valid question.

While doing some bugfixing on the HIL drivers I noticed that suddenly
all LEDs were lit on the 715/64. It was strange, as I still was using
the machine and it was running fine.

The reason why the LEDs were lit was, that oops_in_progress was set due
a bug in my code. In dmesg I saw:
BUG: rwlock cpu recursion on CPU#0, modprobe/1098, 00a1599c
Backtrace:
 [<102a9c78>] _raw_write_lock+0x54/0x8c
 ....

So, whenever the kernel hits such a WARNING(), all LEDs will blink.
Now after my patch, the 4 LEDs on the left side blink (they are currently
not used anyway), while Heartbeat, disk-IO and LAN in/out still work
as usual. So, you will notice the 4 LEDs at once as well, but in addition
you still have the possibility to see if LAN goes in/out (e.g. if you ping
the machine) or if the heartbeat still works (and so your machine should 
still be reachable).

Helge
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Helge Deller wrote:
> Thibaut VARENE wrote:
>> On Tue, Jan 6, 2009 at 2:23 PM, Helge Deller <deller@gmx.de> wrote:
>>> - blink loadavg LEDs only (not all LEDs) twice a second on Oops
>> Just out of curiosity, why wouldn't you want to have all leds blinking
>> on something as serious as an Oops? I kind of liked to clearly see
>> when something went wrong...
> 
> Yeah, valid question.
> 
> While doing some bugfixing on the HIL drivers I noticed that suddenly
> all LEDs were lit on the 715/64. It was strange, as I still was using...

I meant: The LEDs were blinking twice per second, not full-time on.
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: BUG_ON() cleanup
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James Bottomley wrote:
> On Tue, 2009-01-06 at 12:57 +0100, Helge Deller wrote:
>> - convert a few "if (xx) BUG();" to BUG_ON(xx)
> 
> This is fine
> 
>> - remove a few printk()s, as we get a backtrace with BUG_ON() anyway
> 
> This is less helpful.  Each of the printks explains why the bug
> triggers.  In theory you can work this out from the BUG_ON line number,
> but *only* if your source files match those of the reporter, which isn't
> the case in an annoyingly large number of bug reports ... speaking as
> someone who seems to get to diagnose large numbers of bugs, it makes my
> life harder.

I fully understand your point.

Regarding arch/parisc/kernel/pci-dma.c:
- each of the pa11_dma_map_* functions where I removed the printks only had
  one BUG() anyway. Should be easy to find it in backtraces.
- a few of the pa11_dma_map_* functions have printks, the others don't. I just
  made it consistent.

Regarding arch/parisc/mm/init.c:
- setup_bootmem() is a huge function. I agree that keeping this printk would
  make sense.

So, would you be OK with the patch if I drop the init.c change and keep the
pci-dma.c changes?

Helge
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Cc: Matt Taggart <taggart@debian.org>,
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dann frazier wrote:
> On Tue, Jan 06, 2009 at 12:46:34AM +0100, Helge Deller wrote:
>> CC: linux-paric mailing list
>>
>> Peter Palfrader wrote:
>>> On Mon, 05 Jan 2009, dann frazier wrote:
>>>
>>>> On Tue, Dec 23, 2008 at 11:43:22AM +0100, Helge Deller wrote:
>>>>> Peter Palfrader wrote:
>>>>>> Helge Deller schrieb am Dienstag, dem 23. Dezember 2008:
>>>>>>
>>>>>>> Patch in parisc git tree:
>>>>>>> http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commitdiff;h=378fe7c4cc619b561409206605c723c05358edac;hp=6c4dfa8f8bcf032137aacb3640d7dd9d75b2b607
>>>>>> So just using an SMP kernel should also work?
>>>>> Probably yes, since some other developers tried initially to reproduce
>>>>> the problem, but they couldn't (as it seems they were running on newer
>>>>> SMP machines). But I don't have a SMP server which is why I can't test
>>>>> myself...
>>>> Unfortunately, it looks like we're still having problems on the
>>>> buildds w/ 2.6.26 SMP kernels:
>>>>   http://buildd.debian.org/build.php?&pkg=ruby1.9&ver=1.9.0.2-9&arch=hppa&file=log
>>>>
>>>> The build doesn't take the system down, but does still hang
>>>> indefinitely while running miniruby - though the hang location varies.
>>>>
>>>> I'll prepare a UP kernel for one of the buildds w/ the
>>>> up-optimization-removal patch just to see if it improves things. I
>>>> don't see why it would, other than it seemed to solve the problem on
>>>> my test box when I first tested the patch.
>> It seemed to fix the problem for me as well.
> 
> fyi, I tested w/ a 2.6.26 32-bit UP kernel w/ the
> up-optimization-removal patch, and received another hang:
>  http://buildd.debian.org/fetch.cgi?pkg=ruby1.9;ver=1.9.0.2-9;arch=hppa;stamp=1231212073

Yes, that's the same I can reproduce here as well.
It's AFAICS not the ProtectionID trap kernel bug any longer, which is good :-)

>> In principle looking at the logs it looks more like a userspace bugs
>> due to threading functions.
>> Anyway, I'll try to reproduce it here as well.
>> FWIW, I had some additional irq locking code in load_context(), maybe 
>> this helps...?
> 
> I'd be happy to test it if you can point me to a changeset.

Sorry, nothing yet.
As it does not seem to be related to the Protection ID trap, they are probably
useless anyway.
Overall, this is what I see when running dpkg-buildpackage for ruby1.9:
test_load.rb .
test_exception.rb ................................
test_thread.rb .........................
<here it hangs>

root@c3000:~/cvs/ruby/ruby1.9-1.9.0.2# ps -efww
root     15817 15815  0 13:36 pts/0    00:00:00 /usr/bin/perl /usr/bin/dpkg-buildpackage
root     25673 32222  0 14:56 pts/0    00:00:00 /mnt/sdb4/cvs/ruby/ruby1.9-1.9.0.2/miniruby -I/mnt/sdb4/cvs/ruby/ruby1.9-1.9.0.2/lib -I/mnt/sdb4/cvs/ruby/ruby1.9-1.9.0.2/.ext/common -I./- -r/mnt/sdb4/cvs/ruby/ruby1.9-1.9.0.2/ext/purelib.rb -W0 bootstraptest.tmp.rb
root     25676 25673  0 14:56 pts/0    00:00:00 [miniruby] <defunct>
root     25892  2014  0 17:16 pts/1    00:00:00 ps -efwww
root     29832 15817  0 14:46 pts/0    00:00:00 /usr/bin/make -f debian/rules binary
root     32188 29832  0 14:55 pts/0    00:00:00 make test
root     32222 32188  0 14:55 pts/0    00:00:00 ./miniruby -I./lib -I.ext/common -I./- -r./ext/purelib.rb ./bootstraptest/runner.rb --ruby=./miniruby -I./lib -I.ext/common -I./- -r./ext/purelib.rb  -q
root     32223 32222  0 14:55 pts/0    00:00:00 ./miniruby -I./lib -I.ext/common -I./- -r./ext/purelib.rb ./bootstraptest/runner.rb --ruby=./miniruby -I./lib -I.ext/common -I./- -r./ext/purelib.rb  -q
root     32224 32223  0 14:55 pts/0    00:00:00 ./miniruby -I./lib -I.ext/common -I./- -r./ext/purelib.rb ./bootstraptest/runner.rb --ruby=./miniruby -I./lib -I.ext/common -I./- -r./ext/purelib.rb  -q

root@c3000:~/cvs/ruby/ruby1.9-1.9.0.2# strace -p 32222
Process 32222 attached - interrupt to quit
_newselect(7, [6], NULL, NULL, NULL^C <unfinished ...>
Process 32222 detached

root@c3000:~/cvs/ruby/ruby1.9-1.9.0.2# strace -p 32223
Process 32223 attached - interrupt to quit
restart_syscall(<... resuming interrupted call ...>) = 0
getppid()                               = 32222
poll([{fd=3, events=POLLIN}], 1, 2000)  = 0 (Timeout)
getppid()                               = 32222
poll([{fd=3, events=POLLIN}], 1, 2000^C <unfinished ...>
Process 32223 detached

root@c3000:~/cvs/ruby/ruby1.9-1.9.0.2# strace -p 32224
Process 32224 attached - interrupt to quit
nanosleep({0, 10000000}, {0, 7191145})  = 0
nanosleep({0, 10000000}, {0, 7191145})  = 0
nanosleep({0, 10000000}, {0, 7191145})  = 0
nanosleep({0, 10000000}, {0, 7191145})  = 0
...

So, it's probably somehow a threading-related problem.
I'm not sure yet, why the miniruby PID 25676 is defunct.

Needs quite some debugging, but we still have threading problems on hppa. 

>>> Yeah, penalosa got stuck again today, this was on the console:
>> Does panalosa has the patched kernel (same one as the one on peri) ?
> 
> Both machines were running an unpatched SMP 2.6.26 until I upgraded
> penalosa for the test I refer to above. The thinking being that -
> though these machines are single CPU - the SMP version should avoid
> the UP optimization code.
> 
>> The protection ID traps shouldn't happen any longer, and from the buildd
>> logs on peri it does seem like that the ProtID traps don't happen there.
> 
> There were no protection trap messages in penalosa's dmesg after the
> above hang. In fact, it contains nothing other than bootup messages.

Good, same here.

> Thanks for all your help so far - its really appreciated.

Thanks!

Helge
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Subject: Re: [PATCH] parisc: BUG_ON() cleanup
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Cc: Helge Deller <deller@gmx.de>, Kyle McMartin <kyle@mcmartin.ca>,
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On Tuesday 06 January 2009 10:20:33 James Bottomley wrote:
> On Tue, 2009-01-06 at 12:57 +0100, Helge Deller wrote:
> > - convert a few "if (xx) BUG();" to BUG_ON(xx)
>
> This is fine
>
> > - remove a few printk()s, as we get a backtrace with BUG_ON() anyway
>
> This is less helpful.  Each of the printks explains why the bug
> triggers.  In theory you can work this out from the BUG_ON line number,
> but *only* if your source files match those of the reporter, which isn't
> the case in an annoyingly large number of bug reports ... speaking as
> someone who seems to get to diagnose large numbers of bugs, it makes my
> life harder.

i think those comments go beyond parisc.  perhaps we should add a=20
BUG_ON_ANNOTATED() that includes another printk ?
=2Dmike

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From - Thu Nov 08 21:03:28 2018
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From: "Thibaut VARENE" <varenet@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: blink loadavg LEDs on Oops
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To: "Helge Deller" <deller@gmx.de>
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On Tue, Jan 6, 2009 at 4:40 PM, Helge Deller <deller@gmx.de> wrote:

> Yeah, valid question.
....
>
> So, whenever the kernel hits such a WARNING(), all LEDs will blink.
> Now after my patch, the 4 LEDs on the left side blink (they are currently
> not used anyway), while Heartbeat, disk-IO and LAN in/out still work
> as usual. So, you will notice the 4 LEDs at once as well, but in addition
> you still have the possibility to see if LAN goes in/out (e.g. if you ping
> the machine) or if the heartbeat still works (and so your machine should
> still be reachable).

The thing is that you have a machine with more than 4 LEDs. I have
B180/B132s which have only 4 leds. Thus I won't notice anything when
an Oops occurs. If you really don't want to have the old behaviour
(which, again, I really found nice), how about having the heartbeat
LED fixed when an oops occurs.

Even better, a way to "reset" the state of the leds through /proc
would solve both problems: an oops occurs, all/some leds flash/remain
lit, you (try to) login, figure out the oops wasn't so serious, echo
something > /proc/pdc/led and the LEDs start blinking normally again.

Anyway, the key point here is that not all machines without LCD have
more than 4 LEDs ;)

Thoughts?

Cheers,
T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:03:28 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [RFC, PATCH] parisc: add support for force_successful_syscall_return()
Date: Wed, 07 Jan 2009 22:38:30 +0100
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I just stumbled over this commit from Paul Mackerras which added 
support for force_successful_syscall_return() to compat_sys_time()
and compat_sys_times():
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=e3d5a27d5862b6425d0879272e24abecf7245105

This made me wondering, if we couldn't add support for this as
well for parisc. Important part is of course to keep backwards
binary compatibility for userspace.

The following patch is just a draft, fully untested (not even
compiled) and incomplete (e.g. initialization for r29 in kernel still
needed), but it should give the idea that I have.
My idea is to use e.g. r29 as error indicator, since r29 is even 
marked as clobbered in old userspace syscall implementations.

So, my main question is:
Do you think it makes sense to continue on this idea?
My personal feeling is, that it is doable to implement
force_successful_syscall_return() in a sane manner while keeping
backwards ABI compatibility for parisc.

Feedback very much appreciated.

Helge

diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
index 302f68d..a54f7bb 100644
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -61,6 +61,9 @@ void user_enable_block_step(struct task_struct *task);
 #define instruction_pointer(regs)	((regs)->iaoq[0] & ~3)
 unsigned long profile_pc(struct pt_regs *);
 extern void show_regs(struct pt_regs *);
+
+#define force_successful_syscall_return() (current->thread.regs.gr[29] = 0)
+
 #endif
 
 #endif
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index ef26b00..3649008 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -852,16 +852,20 @@
    are treated specially. Although r19 is clobbered by the syscall
    we cannot say this because it would violate ABI, thus we say
    r4 is clobbered and use that register to save/restore r19
-   across the syscall. */
+   across the syscall. If r28 is between -4095 and -1, r29==0
+   indicates a sucessful syscall even if the return value is
+   negative. */
 
 #define K_CALL_CLOB_REGS "%r1", "%r2", K_USING_GR4 \
-	        	 "%r20", "%r29", "%r31"
+	        	 "%r20", /* "%r29",*/ "%r31"
 
 #undef K_INLINE_SYSCALL
 #define K_INLINE_SYSCALL(name, nr, args...)	({			\
 	long __sys_res;							\
+	unsigned long __sys_res_unsucessful;				\
 	{								\
 		register unsigned long __res __asm__("r28");		\
+		register unsigned long __res_not_ok __asm__("r29");	\
 		K_LOAD_ARGS_##nr(args)					\
 		/* FIXME: HACK stw/ldw r19 around syscall */		\
 		__asm__ volatile(					\
@@ -874,8 +878,10 @@
 			: "memory", K_CALL_CLOB_REGS K_CLOB_ARGS_##nr	\
 		);							\
 		__sys_res = (long)__res;				\
+		__sys_res_unsucessful = __res_not_ok;			\
 	}								\
-	if ( (unsigned long)__sys_res >= (unsigned long)-4095 ){	\
+	if ( __sys_res_unsucessful && 					\
+	    (unsigned long)__sys_res >= (unsigned long)-4095 ){		\
 		errno = -__sys_res;		        		\
 		__sys_res = -1;						\
 	}								\
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From - Thu Nov 08 21:03:28 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: blink loadavg LEDs on Oops
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To: Thibaut VARENE <varenet@parisc-linux.org>
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Thibaut VARENE wrote:
> On Tue, Jan 6, 2009 at 4:40 PM, Helge Deller <deller@gmx.de> wrote:
> 
>> Yeah, valid question.
> ....
>> So, whenever the kernel hits such a WARNING(), all LEDs will blink.
>> Now after my patch, the 4 LEDs on the left side blink (they are currently
>> not used anyway), while Heartbeat, disk-IO and LAN in/out still work
>> as usual. So, you will notice the 4 LEDs at once as well, but in addition
>> you still have the possibility to see if LAN goes in/out (e.g. if you ping
>> the machine) or if the heartbeat still works (and so your machine should
>> still be reachable).
> 
> The thing is that you have a machine with more than 4 LEDs. I have
> B180/B132s which have only 4 leds. Thus I won't notice anything when
> an Oops occurs. If you really don't want to have the old behaviour
> (which, again, I really found nice), how about having the heartbeat
> LED fixed when an oops occurs.
> 
> Even better, a way to "reset" the state of the leds through /proc
> would solve both problems: an oops occurs, all/some leds flash/remain
> lit, you (try to) login, figure out the oops wasn't so serious, echo
> something > /proc/pdc/led and the LEDs start blinking normally again.
> 
> Anyway, the key point here is that not all machines without LCD have
> more than 4 LEDs ;)

I think you are right. My b160L has 4 LEDs only as well.
So, just changing the "upper" 4 LEDs is the wrong way.
Then I was thinking to just check for the machine type or processor type
and make it dependend on that. No good idea either.

In the end, I think it's the fault of CONFIG_DEBUG_SPINLOCK.
If this is enabled, it just turns sets oops_in_progress=1 as soon as
a spinlock was wrong. Either way, if this happens something is
wrong, and the LEDs should flash.
That said, I think we should just drop my patch. If they all flash
as soon as an error happened this is just right.
In a normal productive system a bad spinlock shouldn't happen either, so
my patch just adds some unnecessary noise.

Helge
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Hello,


I tried stock 2.6.28 on a parisc64 machine (L1000). 2.6.27 worked fine 
(except 2 bootup warnings that are known here as I was told). I turned 
on some debugging options for the current kernel, among them RCU stall 
detection, and it triggered quite some. In spite of the warnings, the 
computer seems to work fine. But I'm writing here because this might 
interest somebody.

Not subscribed, please CC:.


[    0.000000] Linux version 2.6.28 (mroos@hernes) (gcc version 4.3.2 (GCC) ) #1 SMP Wed Jan 7 20:04:12 EET 2009
[    0.000000] unwind_init: start = 0x40425d84, end = 0x4044c524, entries = 9850
[    0.000000] FP[0] enabled: Rev 1 Model 16
[    0.000000] The 64-bit Kernel has started...
[    0.000000] console [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00005c90 00000491 00000000 00000002 2353fbcb 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000203
[    0.000000] CPUID vers 17 rev 8 (0x00000228)
[    0.000000] capabilities 0x1
[    0.000000] model 9000/800/L1000-44
[    0.000000] Total Memory: 3072 MB
[    0.000000] initrd: 7f91e000-7ffee193
[    0.000000] initrd: reserving 3f91e000-3ffee193 (mem_max c0000000)
[    0.000000] On node 0 totalpages: 786432
[    0.000000] free_area_init_node: node 0, pgdat 4044c840, node_mem_map 40b11000
[    0.000000]   Normal zone: 12288 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 774144 pages, LIFO batch:31
[    0.000000]   Movable zone: 0 pages used for memmap
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 774144
[    0.000000] Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
[    0.000000] RCU-based detection of stalled CPUs is enabled.
[    0.000000] PID hash table entries: 4096 (order: 12, 32768 bytes)
[42949372.960000] Console: colour dummy device 160x64
[42949372.990000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[42949373.020000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[42949373.540000] Memory: 3071232k/3145728k available (2680k kernel code, 73924k reserved, 1279k data, 268k init)
[42949373.550000] virtual kernel memory layout:
[42949373.550000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
[42949373.550000]     memory  : 0x0000000040000000 - 0x0000000100000000   (3072 MB)
[42949373.550000]       .init : 0x00000000405a8000 - 0x00000000405eb000   ( 268 kB)
[42949373.550000]       .data : 0x000000004039e358 - 0x00000000404de000   (1279 kB)
[42949373.550000]       .text : 0x0000000040100000 - 0x000000004039e358   (2680 kB)
[42949373.620000] SLUB: Genslabs=12, HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=8
[42949373.630000] Calibrating delay loop... 878.18 BogoMIPS (lpj=4390912)
[42949374.000000] Security Framework initialized
[42949374.020000] Mount-cache hash table entries: 256
[42949374.030000] Brought up 1 CPUs
[42949374.040000] net_namespace: 1408 bytes
[42949374.040000] NET: Registered protocol family 16
[42949374.060000] EISA bus registered
[42949374.060000] Searching for devices...
[42949374.520000] Found devices:
[42949374.530000] 1. Rhapsody DC- 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5c9, 0x00004 }
[42949374.540000] 2. Rhapsody DC- 440 at 0xfffffffffffa6000 [166] { 0, 0x0, 0x5c9, 0x00004 }
[42949374.550000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x095, 0x00009 }
[42949374.550000] 4. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
[42949374.560000] 5. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
[42949374.730000] 6. Elroy PCI Bridge at 0xfffffffffed32000 [0/1] { 13, 0x0, 0x782, 0x0000a }
[42949374.740000] 7. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
[42949374.750000] 8. Elroy PCI Bridge at 0xfffffffffed36000 [0/3] { 13, 0x0, 0x782, 0x0000a }
[42949374.760000] 9. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
[42949374.760000] 10. Elroy PCI Bridge at 0xfffffffffed3a000 [0/5] { 13, 0x0, 0x782, 0x0000a }
[42949375.160000] 11. Elroy PCI Bridge at 0xfffffffffed3c000 [0/6] { 13, 0x0, 0x782, 0x0000a }
[42949375.170000] 12. Elroy PCI Bridge at 0xfffffffffed3e000 [0/7] { 13, 0x0, 0x782, 0x0000a }
[42949375.170000] Enabling PDC_PAT chassis codes support v0.05
[42949375.500000] Releasing cpu 1 now, hpa=fffffffffffa6000
[42949375.520000] FP[1] enabled: Rev 1 Model 16
[42949375.550000] CPU(s): 2 x PA8500 (PCX-W) at 440.000000 MHz
[42949375.560000] Whole cache flush 336970 cycles, flushing 5156864 bytes 881134 cycles
[42949375.560000] Setting cache flush threshold to 100000 (2 CPUs online)
[42949375.620000] SBA found Astro 2.1 at 0xfffffffffed00000
[42949375.620000] Elroy version TR4.0 (0x5) found at 0xfffffffffed30000
[42949375.650000] pci 0000:00:00.0: reg 10 io port: [0x00-0x7f]
[42949375.650000] pci 0000:00:00.0: reg 14 32bit mmio: [0x000000-0x0003ff]
[42949375.660000] pci 0000:00:00.0: reg 30 32bit mmio: [0x000000-0x03ffff]
[42949375.660000] pci 0000:00:01.0: reg 10 io port: [0x00-0xff]
[42949375.660000] pci 0000:00:01.0: reg 14 64bit mmio: [0x000000-0x0003ff]
[42949375.660000] pci 0000:00:01.0: reg 1c 64bit mmio: [0x000000-0x001fff]
[42949375.660000] pci 0000:00:01.0: supports D1 D2
[42949375.660000] pci 0000:00:01.1: reg 10 io port: [0x00-0xff]
[42949375.660000] pci 0000:00:01.1: reg 14 64bit mmio: [0xf8020000-0xf80203ff]
[42949375.660000] pci 0000:00:01.1: reg 1c 64bit mmio: [0xf8040000-0xf8041fff]
[42949375.660000] pci 0000:00:01.1: supports D1 D2
[42949375.660000] pci 0000:00:02.0: reg 10 io port: [0x00-0xff]
[42949375.660000] pci 0000:00:02.0: reg 14 32bit mmio: [0x000000-0x0000ff]
[42949375.660000] pci 0000:00:02.0: reg 18 32bit mmio: [0x000000-0x000fff]
[42949375.660000] pci 0000:00:02.1: reg 10 io port: [0x00-0xff]
[42949375.660000] pci 0000:00:02.1: reg 14 32bit mmio: [0x000000-0x0000ff]
[42949375.660000] pci 0000:00:02.1: reg 18 32bit mmio: [0x000000-0x000fff]
[42949375.660000] pci 0000:00:04.0: reg 10 32bit mmio: [0xf8000000-0xf8000fff]
[42949375.660000] pci 0000:00:04.0: reg 14 io port: [0x00-0x3f]
[42949375.660000] pci 0000:00:05.0: reg 10 32bit mmio: [0x000000-0x000fff]
[42949375.660000] pci 0000:00:05.0: reg 14 io port: [0x00-0x3f]
[42949375.660000] Elroy version TR4.0 (0x5) found at 0xfffffffffed32000
[42949375.690000] Elroy version TR4.0 (0x5) found at 0xfffffffffed34000
[42949375.700000] NOTICE: Enabling PCI Arbitration
[42949375.720000] Elroy version TR4.0 (0x5) found at 0xfffffffffed36000
[42949375.760000] pci 0000:18:00.0: reg 10 io port: [0x00-0x7f]
[42949375.760000] pci 0000:18:00.0: reg 14 32bit mmio: [0x000000-0x0003ff]
[42949375.760000] pci 0000:18:00.0: reg 30 32bit mmio: [0x000000-0x03ffff]
[42949375.760000] Elroy version TR4.0 (0x5) found at 0xfffffffffed38000
[42949375.760000] NOTICE: Enabling PCI Arbitration
[42949375.790000] Elroy version TR4.0 (0x5) found at 0xfffffffffed3a000
[42949375.790000] NOTICE: Enabling PCI Arbitration
[42949375.820000] Elroy version TR4.0 (0x5) found at 0xfffffffffed3c000
[42949375.820000] NOTICE: Enabling PCI Arbitration
[42949375.850000] Elroy version TR4.0 (0x5) found at 0xfffffffffed3e000
[42949375.850000] NOTICE: Enabling PCI Arbitration
[42949375.880000] powersw: Soft power switch support not available.
[42949375.930000] NetLabel: Initializing
[42949375.930000] NetLabel:  domain hash size = 128
[42949375.930000] NetLabel:  protocols = UNLABELED CIPSOv4
[42949375.940000] NetLabel:  unlabeled traffic allowed by default
[42949376.150000] NET: Registered protocol family 2
[42949376.260000] IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
[42949376.290000] TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
[42949376.320000] TCP bind hash table entries: 65536 (order: 9, 2097152 bytes)
[42949376.440000] TCP: Hash tables configured (established 262144 bind 65536)
[42949376.570000] TCP reno registered
[42949376.610000] NET: Registered protocol family 1
[42949376.710000] checking if image is initramfs... it is
[42949379.700000] Freeing initrd memory: 6976k freed
[42949379.710000] Chassis warnings not supported.
[42949379.720000] Performance monitoring counters enabled for Rhapsody DC- 440
[42949379.750000] VFS: Disk quotas dquot_6.5.1
[42949379.750000] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[42949379.770000] msgmni has been set to 6013
[42949379.790000] alg: No test for stdrng (krng)
[42949379.800000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[42949379.810000] io scheduler noop registered
[42949379.820000] io scheduler anticipatory registered
[42949379.830000] io scheduler deadline registered
[42949379.830000] io scheduler cfq registered (default)
[42949379.850000] PDC Stable Storage facility v0.30
[42949380.610000] STI GSC/PCI core graphics driver Version 0.9a
[42949380.640000] Serial: 8250/16550 driver4 ports, IRQ sharing enabled
[42949380.640000] serial 0000:00:04.0: enabling device (0146 -> 0147)
[42949380.660000] 0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 70) is a 16550A
[42949380.670000] console handover: boot [ttyB0] -> real [ttyS0]
[42949380.680000] 0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 70) is a 16550A
[42949380.700000] 0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 70) is a 16550A
[42949380.720000] serial 0000:00:05.0: enabling device (0140 -> 0143)
[42949380.730000] 0000:00:05.0: ttyS3 at MMIO 0xfffffffff8005000 (irq = 71) is a 16550A
[42949380.750000] Couldn't register serial port 0000:00:05.0: -28
[42949380.770000] brd: module loaded
[42949380.850000] mice: PS/2 mouse device common for all mice
[42949380.860000] rtc-parisc rtc-parisc: rtc core: registered rtc-parisc as rtc0
[42949381.000000] TCP cubic registered
[42949381.010000] NET: Registered protocol family 17
[42949381.140000] rtc-parisc rtc-parisc: setting system clock to 2009-01-08 07:32:34 UTC (1231399954)
[42949381.150000] Freeing unused kernel memory: <0>------------[ cut here ]------------
[42949381.290000] Badness at kernel/smp.c:333
[42949381.420000] 
[42949381.420000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[42949381.420000] PSW: 00001000000001101111111100001110 Not tainted
[42949381.430000] r00-03  000000ff0806ff0e 000000004059b740 0000000040177f84 00000000404ea030
[42949381.440000] r04-07  0000000040597740 0000000040580120 0000000000000000 00000000404561f0
[42949381.440000] r08-11  00000000ff850460 0000000000000001 0000000040580120 0000000000000000
[42949381.850000] r12-15  000000004059c740 000000004059e740 0000000000000000 00000000ff848a18
[42949381.860000] r16-19  00000000405a0f40 000000004059df40 00000000405e84d0 00000000405eb000
[42949381.870000] r20-23  0000000000000000 00000000405eb000 0000000040595a60 0000000000000001
[42949381.870000] r24-27  0000000000000000 0000000040580120 0000000000000003 0000000040597740
[42949381.880000] r28-31  000000000800000e 00000000ff8504a0 00000000ff850630 0000000000000000
[42949382.280000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[42949382.420000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[42949382.420000] 
[42949382.430000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040177cb8 0000000040177cbc
[42949382.430000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000002fe14050460
[42949382.440000]  CPU:        0   CR30: 00000000ff850000 CR31: 0000000000008020
[42949382.840000]  ORIG_R28: 00000000402c8b8c
[42949382.840000]  IAOQ[0]: smp_call_function_mask+0x48/0x2e8
[42949382.840000]  IAOQ[1]: smp_call_function_mask+0x4c/0x2e8
[42949382.850000]  RP(r2): smp_call_function+0x2c/0x38
[42949382.850000] Backtrace:
[42949382.860000]  [<0000000040177f84>] smp_call_function+0x2c/0x38
[42949383.260000]  [<0000000040152b28>] on_each_cpu+0x28/0x68
[42949383.270000]  [<000000004011bd04>] flush_data_cache+0x24/0x30
[42949383.390000]  [<000000004011b1a4>] free_initmem+0x94/0x338
[42949383.400000]  [<000000004011a2ec>] init_post+0x1c/0x238
[42949383.400000]  [<00000000405a849c>] kernel_init+0x34c/0x380
[42949383.410000] 
[42949383.410000] ------------[ cut here ]------------
[42949383.410000] Badness at kernel/smp.c:220
[42949383.420000] 
[42949383.420000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[42949383.580000] PSW: 00001000000001101111111100001110 Tainted: G        W 
[42949383.820000] r00-03  000000ff0806ff0e 0000000040598f40 0000000040177da0 0000000040580120
[42949383.960000] r04-07  0000000040597740 0000000000000001 0000000000000000 00000000404561f0
[42949383.960000] r08-11  00000000ff850460 0000000000000001 0000000040580120 0000000000000000
[42949383.970000] r12-15  000000004059c740 000000004059e740 0000000000000000 00000000ff848a18
[42949383.980000] r16-19  00000000405a0f40 000000004059df40 00000000405e84d0 0000000000000038
[42949384.380000] r20-23  00000000ff850460 0000000000000000 00000000ff8504d8 0000000000000001
[42949384.380000] RCU detected CPU 0 stall (t=4294938438/323 jiffies)
[42949384.380000] Backtrace:
[42949384.380000]  [<000000004011ccbc>] show_stack+0x14/0x20
[42949384.380000]  [<00000000401157d0>] dump_stack+0x18/0x28
[42949384.380000]  [<0000000040185bd8>] __rcu_pending+0xb8/0x348
[42949384.380000]  [<0000000040185ea8>] rcu_pending+0x40/0x90
[42949384.380000]  [<0000000040159504>] update_process_times+0x64/0xc8
[42949384.380000]  [<000000004011e03c>] timer_interrupt+0x184/0x218
[42949384.380000]  [<00000000401818b8>] handle_IRQ_event+0x60/0xc0
[42949384.380000]  [<00000000401819e4>] __do_IRQ+0xcc/0x288
[42949384.380000]  [<000000004011e81c>] do_cpu_irq_mask+0x204/0x290
[42949384.380000]  [<0000000040104074>] intr_return+0x0/0x4
[42949384.380000]  [<000000004014cd10>] vprintk+0x498/0x518
[42949384.380000]  [<0000000040115af8>] printk+0x40/0x50
[42949384.380000]  [<000000004011ce20>] show_regs+0x158/0x4d8
[42949384.380000]  [<000000004027ab74>] report_bug+0xc4/0x130
[42949384.380000]  [<000000004011d80c>] handle_interruption+0x274/0x848
[42949384.380000]  [<0000000040177b88>] smp_call_function_single+0x38/0x120
[42949384.380000] 
[42949384.390000] timer_interrupt(CPU 0): delayed! cycles 1A3D51B5 rem 373B5  next/now 502DC2FF04/50480050B9
[42949385.400000] r24-27  0000000000000000 0000000040580120 0000000000000001 0000000040597740
[42949385.400000] r28-31  000000000800000e 00000000ff850600 00000000ff8506f0 0000000000000000
[42949385.400000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[42949385.400000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[42949385.400000] 
[42949385.400000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040177b88 0000000040177b8c
[42949385.400000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000002fe14050670
[42949385.400000]  CPU:        0   CR30: 00000000ff850000 CR31: 0000000000008020
[42949385.400000]  ORIG_R28: 0000000040104084
[42949385.400000]  IAOQ[0]: smp_call_function_single+0x38/0x120
[42949385.400000]  IAOQ[1]: smp_call_function_single+0x3c/0x120
[42949385.400000]  RP(r2): smp_call_function_mask+0x130/0x2e8
[42949385.400000] Backtrace:
[42949385.400000]  [<0000000040177da0>] smp_call_function_mask+0x130/0x2e8
[42949385.400000]  [<0000000040177f84>] smp_call_function+0x2c/0x38
[42949385.400000]  [<0000000040152b28>] on_each_cpu+0x28/0x68
[42949385.400000]  [<000000004011bd04>] flush_data_cache+0x24/0x30
[42949385.400000]  [<000000004011b1a4>] free_initmem+0x94/0x338
[42949385.400000]  [<000000004011a2ec>] init_post+0x1c/0x238
[42949385.400000]  [<00000000405a849c>] kernel_init+0x34c/0x380
[42949385.400000] 
[42949385.400000] 268k freed
[42949385.400000] Write protecting the kernel read-only data: 504k
[42949385.400000] SCSI subsystem initialized
[42949385.400000] Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
[42949385.400000] tulip 0000:00:00.0: enabling device (0140 -> 0143)
[42949385.400000] tulip0: no phy info, aborting mtable build
[42949385.400000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
[42949385.400000] eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff8006000, 00:10:83:fe:9c:b0, IRQ 66.
[42949385.400000] tulip 0000:18:00.0: enabling device (0140 -> 0143)
[42949385.400000] tulip1:  EEPROM default media type Autosense.
[42949385.400000] tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
[42949385.400000] tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.
[42949385.400000] tulip1:  Advertising 01e1 on PHY 1, previously advertising 0101.
[42949385.400000] eth1: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff9840000, 00:10:83:fb:99:c0, IRQ 72.
[42949385.400000] sym53c8xx 0000:00:01.0: enabling device (0140 -> 0143)
[42949385.400000] sym0: <896> rev 0x5 at pci 0000:00:01.0 irq 67
[42949385.400000] sym0: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
[42949385.400000] sym0: SCSI BUS has been reset.
[42949385.400000] scsi0 : sym-2.2.3
[42949385.400000] timer_interrupt(CPU 0): delayed! cycles 100001588 rem 8BD88  next/now 5048400084/514840160C
[42949395.170000] timer_interrupt(CPU 0): delayed! cycles 1000002C8 rem 8AAC8  next/now 51487A7C04/52487A7ECC
[42949404.940000] timer_interrupt(CPU 0): delayed! cycles 1000002B1 rem 8AAB1  next/now 5248B4F784/5348B4FA35
[42949404.940000] RCU detected CPU 0 stall (t=4294940494/977 jiffies)
[42949404.940000] Backtrace:
[42949404.940000]  [<000000004011ccbc>] show_stack+0x14/0x20
[42949404.940000]  [<00000000401157d0>] dump_stack+0x18/0x28
[42949404.940000]  [<0000000040185bd8>] __rcu_pending+0xb8/0x348
[42949404.940000]  [<0000000040185ea8>] rcu_pending+0x40/0x90
[42949404.940000]  [<0000000040159504>] update_process_times+0x64/0xc8
[42949404.940000]  [<000000004011e03c>] timer_interrupt+0x184/0x218
[42949404.940000]  [<00000000401818b8>] handle_IRQ_event+0x60/0xc0
[42949404.940000]  [<00000000401819e4>] __do_IRQ+0xcc/0x288
[42949404.940000]  [<000000004011e81c>] do_cpu_irq_mask+0x204/0x290
[42949404.940000]  [<0000000040104074>] intr_return+0x0/0x4
[42949404.940000]  [<000000004012603c>] cpu_idle+0x7c/0x88
[42949404.940000]  [<000000004010b21c>] rest_init+0xbc/0xc8
[42949404.940000] 
[42949414.710000] timer_interrupt(CPU 0): delayed! cycles 1000005A6 rem 8ADA6  next/now 5348EF7304/5448EF78AA
[42949424.480000] timer_interrupt(CPU 0): delayed! cycles 1000002AD rem 8AAAD  next/now 544929EE84/554929F131
[42949434.250000] timer_interrupt(CPU 0): delayed! cycles 1000002AE rem 8AAAE  next/now 5549646A04/5649646CB2
[42949444.020000] sym53c8xx 0000:00:01.1: enabling device (0146 -> 0147)
[42949444.020000] sym1: <896> rev 0x5 at pci 0000:00:01.1 irq 68
[42949444.020000] sym1: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
[42949444.020000] sym1: SCSI BUS has been reset.
[42949444.020000] scsi1 : sym-2.2.3
[42949444.020000] timer_interrupt(CPU 0): delayed! cycles 100002041 rem 8C841  next/now 56499EE584/57499F05C5
[42949453.790000] timer_interrupt(CPU 0): delayed! cycles 1000004A8 rem 8ACA8  next/now 5749D96104/5849D965AC
[42949463.560000] timer_interrupt(CPU 0): delayed! cycles 100000686 rem 8AE86  next/now 584A13DC84/594A13E30A
[42949473.330000] timer_interrupt(CPU 0): delayed! cycles 10000053C rem 8AD3C  next/now 594A4E5804/5A4A4E5D40
[42949483.100000] timer_interrupt(CPU 0): delayed! cycles 10000060E rem 8AE0E  next/now 5A4A88D384/5B4A88D992
[42949492.870000] timer_interrupt(CPU 0): delayed! cycles 10000043C rem 8AC3C  next/now 5B4AC34F04/5C4AC35340
[42949502.640000] scsi 1:0:2:0: Direct-Access     SEAGATE  ST136403LC       HP01 PQ: 0 ANSI: 2
[42949502.640000]  target1:0:2: tagged command queuing enabled, command queue depth 16.
[42949502.640000]  target1:0:2: Beginning Domain Validation
[42949502.640000]  target1:0:2: asynchronous
[42949502.640000]  target1:0:2: wide asynchronous
[42949502.640000]  target1:0:2: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
[42949502.640000]  target1:0:2: Domain Validation skipping write tests
[42949502.640000]  target1:0:2: Ending Domain Validation
[42949502.640000] sym53c8xx 0000:00:02.0: enabling device (0140 -> 0143)
[42949502.640000] sym2: <875> rev 0x14 at pci 0000:00:02.0 irq 68
[42949502.640000] sym2: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
[42949502.640000] sym2: SCSI BUS has been reset.
[42949502.640000] scsi2 : sym-2.2.3
[42949502.640000] timer_interrupt(CPU 0): delayed! cycles 100001FDA rem 8C7DA  next/now 5C4AFDCA84/5D4AFDEA5E
[42949512.410000] timer_interrupt(CPU 0): delayed! cycles 1000004D3 rem 8ACD3  next/now 5D4B384604/5E4B384AD7
[42949522.180000] timer_interrupt(CPU 0): delayed! cycles 100000612 rem 8AE12  next/now 5E4B72C184/5F4B72C796
[42949531.950000] timer_interrupt(CPU 0): delayed! cycles 100000EAA rem 8B6AA  next/now 5F4BAD3D04/604BAD4BAE
[42949541.720000] timer_interrupt(CPU 0): delayed! cycles 100000650 rem 8AE50  next/now 604BE7B884/614BE7BED4
[42949551.490000] timer_interrupt(CPU 0): delayed! cycles 1000005A2 rem 8ADA2  next/now 614C223404/624C2239A6
[42949561.260000] scsi 2:0:2:0: Direct-Access     SEAGATE  ST136403LC       HP01 PQ: 0 ANSI: 2
[42949561.260000]  target2:0:2: tagged command queuing enabled, command queue depth 16.
[42949561.260000]  target2:0:2: Beginning Domain Validation
[42949561.260000]  target2:0:2: asynchronous
[42949561.260000]  target2:0:2: wide asynchronous
[42949561.260000]  target2:0:2: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
[42949561.260000]  target2:0:2: Domain Validation skipping write tests
[42949561.260000]  target2:0:2: Ending Domain Validation
[42949561.260000] sym53c8xx 0000:00:02.1: enabling device (0140 -> 0143)
[42949561.260000] sym3: <875> rev 0x14 at pci 0000:00:02.1 irq 69
[42949561.260000] sym3: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
[42949561.260000] sym3: SCSI BUS has been reset.
[42949561.260000] scsi3 : sym-2.2.3
[42949561.260000] timer_interrupt(CPU 0): delayed! cycles 100001FD5 rem 8C7D5  next/now 624C5CAF84/634C5CCF59
[42949571.030000] Driver 'sd' needs updating - please use bus_type methods
[42949571.030000] sd 1:0:2:0: [sda] 71132960 512-byte hardware sectors: (36.4 GB/33.9 GiB)
[42949571.030000] sd 1:0:2:0: [sda] Write Protect is off
[42949571.030000] sd 1:0:2:0: [sda] Mode Sense: 9f 00 10 08
[42949571.030000] sd 1:0:2:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
[42949571.030000] sd 1:0:2:0: [sda] 71132960 512-byte hardware sectors: (36.4 GB/33.9 GiB)
[42949571.030000] sd 1:0:2:0: [sda] Write Protect is off
[42949571.030000] sd 1:0:2:0: [sda] Mode Sense: 9f 00 10 08
[42949571.030000] sd 1:0:2:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
[42949571.030000]  sda: sda1 sda2 sda3 < sda5 sda6 >
[42949571.030000] sd 1:0:2:0: [sda] Attached SCSI disk
[42949571.030000] sd 2:0:2:0: [sdb] 71132960 512-byte hardware sectors: (36.4 GB/33.9 GiB)
[42949571.030000] sd 2:0:2:0: [sdb] Write Protect is off
[42949571.030000] sd 2:0:2:0: [sdb] Mode Sense: 9f 00 10 08
[42949571.030000] sd 2:0:2:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
[42949571.030000] sd 2:0:2:0: [sdb] 71132960 512-byte hardware sectors: (36.4 GB/33.9 GiB)
[42949571.030000] sd 2:0:2:0: [sdb] Write Protect is off
[42949571.030000] sd 2:0:2:0: [sdb] Mode Sense: 9f 00 10 08
[42949571.030000] sd 2:0:2:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
[42949571.030000]  sdb: unknown partition table
[42949571.030000] sd 2:0:2:0: [sdb] Attached SCSI disk
[42949571.030000] timer_interrupt(CPU 0): delayed! cycles 100002363 rem 8CB63  next/now 634C972B04/644C974E67
[42949580.800000] kjournald starting.  Commit interval 5 seconds
[42949580.800000] EXT3-fs: mounted filesystem with ordered data mode.
[42949580.800000] timer_interrupt(CPU 0): delayed! cycles 100000FB2 rem 8B7B2  next/now 644CD1A684/654CD1B636
[42949590.570000] timer_interrupt(CPU 0): delayed! cycles 1000008A3 rem 8B0A3  next/now 654D0C2204/664D0C2AA7
[42949590.570000] RCU detected CPU 0 stall (t=4294959057/977 jiffies)
[42949590.570000] Backtrace:
[42949590.570000]  [<000000004011ccbc>] show_stack+0x14/0x20
[42949590.570000]  [<00000000401157d0>] dump_stack+0x18/0x28
[42949590.570000]  [<0000000040185bd8>] __rcu_pending+0xb8/0x348
[42949590.570000]  [<0000000040185ea8>] rcu_pending+0x40/0x90
[42949590.570000]  [<0000000040159504>] update_process_times+0x64/0xc8
[42949590.570000]  [<000000004011e03c>] timer_interrupt+0x184/0x218
[42949590.570000]  [<00000000401818b8>] handle_IRQ_event+0x60/0xc0
[42949590.570000]  [<00000000401819e4>] __do_IRQ+0xcc/0x288
[42949590.570000]  [<000000004011e81c>] do_cpu_irq_mask+0x204/0x290
[42949590.570000]  [<0000000040104074>] intr_return+0x0/0x4
[42949590.570000]  [<000000004012603c>] cpu_idle+0x7c/0x88
[42949590.570000]  [<000000004010b21c>] rest_init+0xbc/0xc8
[42949590.570000] 
[42949600.340000] timer_interrupt(CPU 0): delayed! cycles 100000917 rem 8B117  next/now 664D469D84/674D46A69B
[42949610.110000] udevd version 125 started
[42949610.110000] timer_interrupt(CPU 0): delayed! cycles 10000241B rem 8CC1B  next/now 674D811904/684D813D1F
[42949619.880000] scsi 3:0:2:0: CD-ROM            HP       DVD-ROM 304      2.00 PQ: 0 ANSI: 2
[42949619.880000]  target3:0:2: Beginning Domain Validation
[42949619.880000]  target3:0:2: asynchronous
[42949619.880000]  target3:0:2: FAST-20 SCSI 20.0 MB/s ST (50 ns, offset 16)
[42949619.880000]  target3:0:2: Domain Validation skipping write tests
[42949619.880000]  target3:0:2: Ending Domain Validation
[42949619.880000] Driver 'sr' needs updating - please use bus_type methods
[42949619.880000] sr0: scsi3-mmc drive: 0x/0x cd/rw xa/form2 cdda tray
[42949619.880000] Uniform CD-ROM driver Revision: 3.20
[42949619.880000] sr 3:0:2:0: Attached scsi CD-ROM sr0
[42949619.880000] sd 1:0:2:0: Attached scsi generic sg0 type 0
[42949619.880000] sd 2:0:2:0: Attached scsi generic sg1 type 0
[42949619.880000] sr 3:0:2:0: Attached scsi generic sg2 type 5
[42949619.880000] timer_interrupt(CPU 0): delayed! cycles 1000011EE rem 8B9EE  next/now 684DBB9484/694DBBA672
[42949629.650000] RCU detected CPU 0 stall (t=4294962965/977 jiffies)
[42949629.650000] Backtrace:
[42949629.650000]  [<000000004011ccbc>] show_stack+0x14/0x20
[42949629.650000]  [<00000000401157d0>] dump_stack+0x18/0x28
[42949629.650000]  [<0000000040185bd8>] __rcu_pending+0xb8/0x348
[42949629.650000]  [<0000000040185ea8>] rcu_pending+0x40/0x90
[42949629.650000]  [<0000000040159504>] update_process_times+0x64/0xc8
[42949629.650000]  [<000000004011e03c>] timer_interrupt+0x184/0x218
[42949629.650000]  [<00000000401818b8>] handle_IRQ_event+0x60/0xc0
[42949629.650000]  [<00000000401819e4>] __do_IRQ+0xcc/0x288
[42949629.650000]  [<000000004011e81c>] do_cpu_irq_mask+0x204/0x290
[42949629.650000]  [<0000000040104074>] intr_return+0x0/0x4
[42949629.650000]  [<000000004016e9e8>] cpu_clock+0x20/0x38
[42949629.650000]  [<0000000040152f40>] __do_softirq+0xc8/0x220
[42949629.650000]  [<0000000040119ba0>] __lock_text_end+0x50/0x68
[42949629.650000] 
[42949631.440000] Adding 1349420k swap on /dev/sda6.  Priority:-1 extents:1 across:1349420k
[42949632.100000] EXT3 FS on sda5, internal journal
[42949634.140000] LASI 82596 driver - Revision: 1.30
[42949634.200000] loop: module loaded
[42949641.360000] eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.
[42949641.830000] NET: Registered protocol family 10
[42949641.840000] lo: Disabled Privacy Extensions

config:
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.28
# Wed Jan  7 19:35:18 2009
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_TIME_LOW_RES=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_IRQ_PER_CPU=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
CONFIG_IKCONFIG=y
# CONFIG_IKCONFIG_PROC is not set
CONFIG_LOG_BUF_SHIFT=15
# CONFIG_CGROUPS is not set
# CONFIG_GROUP_SCHED is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_RELAY=y
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
# CONFIG_COMPAT_BRK is not set
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
# CONFIG_MARKERS is not set
CONFIG_OPROFILE=m
CONFIG_HAVE_OPROFILE=y
CONFIG_USE_GENERIC_SMP_HELPERS=y
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_CLASSIC_RCU=y
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_RESOURCES_64BIT=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_UNEVICTABLE_LRU=y
CONFIG_COMPAT=y
CONFIG_NR_CPUS=8

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
CONFIG_ISA=y
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCI_LEGACY is not set
# CONFIG_PCI_DEBUG is not set
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
CONFIG_HOTPLUG_PCI=m
CONFIG_HOTPLUG_PCI_FAKE=m
CONFIG_HOTPLUG_PCI_CPCI=y
CONFIG_HOTPLUG_PCI_SHPC=m

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=m
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
CONFIG_NET_KEY_MIGRATE=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=m
CONFIG_IPV6_PRIVACY=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_PIMSM_V2=y
CONFIG_NETLABEL=y
CONFIG_NETWORK_SECMARK=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CT_ACCT=y
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CT_PROTO_DCCP=m
CONFIG_NF_CT_PROTO_GRE=m
CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NETFILTER_TPROXY=m
CONFIG_NETFILTER_XTABLES=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_TPROXY=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
# CONFIG_NETFILTER_XT_MATCH_RECENT_PROC_COMPAT is not set
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_IP_VS=m
CONFIG_IP_VS_IPV6=y
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12

#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y

#
# IPVS scheduler
#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m

#
# IPVS application helper
#
CONFIG_IP_VS_FTP=m

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_NF_NAT_SNMP_BASIC=m
CONFIG_NF_NAT_PROTO_DCCP=m
CONFIG_NF_NAT_PROTO_GRE=m
CONFIG_NF_NAT_PROTO_UDPLITE=m
CONFIG_NF_NAT_PROTO_SCTP=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_PPTP=m
CONFIG_NF_NAT_H323=m
CONFIG_NF_NAT_SIP=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_SECURITY=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m

#
# IPv6: Netfilter Configuration
#
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_TARGET_HL=m
CONFIG_IP6_NF_RAW=m
CONFIG_IP6_NF_SECURITY=m
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_IP6=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_ULOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
# CONFIG_IP_DCCP is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_MSG is not set
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_HMAC_NONE is not set
# CONFIG_SCTP_HMAC_SHA1 is not set
CONFIG_SCTP_HMAC_MD5=y
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
CONFIG_STP=m
CONFIG_GARP=m
CONFIG_BRIDGE=m
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_INGRESS=m

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_ROUTE=y
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_IPT=m
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_CLS_IND=y
CONFIG_NET_SCH_FIFO=y

#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
CONFIG_AF_RXRPC=m
# CONFIG_AF_RXRPC_DEBUG is not set
CONFIG_RXKAD=m
# CONFIG_PHONET is not set
CONFIG_FIB_RULES=y
# CONFIG_WIRELESS is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=m
# CONFIG_MTD is not set
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_SERIAL=m
CONFIG_PARPORT_PC_FIFO=y
CONFIG_PARPORT_PC_SUPERIO=y
CONFIG_PARPORT_GSC=m
# CONFIG_PARPORT_AX88796 is not set
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
# CONFIG_PNP is not set
CONFIG_BLK_DEV=y
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=8192
# CONFIG_BLK_DEV_XIP is not set
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
CONFIG_ATA_OVER_ETH=m
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
CONFIG_ENCLOSURE_SERVICES=m
# CONFIG_HP_ILO is not set
# CONFIG_C2PORT is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=m
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=m
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_FC_TGT_ATTRS=y
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
# CONFIG_SCSI_SAS_ATA is not set
CONFIG_SCSI_SAS_HOST_SMP=y
# CONFIG_SCSI_SAS_LIBSAS_DEBUG is not set
CONFIG_SCSI_SRP_ATTRS=m
# CONFIG_SCSI_SRP_TGT_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
CONFIG_ISCSI_TCP=m
CONFIG_BLK_DEV_3W_XXXX_RAID=m
CONFIG_SCSI_3W_9XXX=m
CONFIG_SCSI_ACARD=m
CONFIG_SCSI_AHA1740=m
CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=32
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
CONFIG_AIC7XXX_DEBUG_ENABLE=y
CONFIG_AIC7XXX_DEBUG_MASK=0
CONFIG_AIC7XXX_REG_PRETTY_PRINT=y
CONFIG_SCSI_AIC7XXX_OLD=m
CONFIG_SCSI_AIC79XX=m
CONFIG_AIC79XX_CMDS_PER_DEVICE=32
CONFIG_AIC79XX_RESET_DELAY_MS=15000
CONFIG_AIC79XX_DEBUG_ENABLE=y
CONFIG_AIC79XX_DEBUG_MASK=0
CONFIG_AIC79XX_REG_PRETTY_PRINT=y
CONFIG_SCSI_AIC94XX=m
# CONFIG_AIC94XX_DEBUG is not set
CONFIG_SCSI_DPT_I2O=m
CONFIG_SCSI_ADVANSYS=m
CONFIG_SCSI_IN2000=m
CONFIG_SCSI_ARCMSR=m
CONFIG_MEGARAID_NEWGEN=y
CONFIG_MEGARAID_MM=m
CONFIG_MEGARAID_MAILBOX=m
CONFIG_MEGARAID_LEGACY=m
CONFIG_MEGARAID_SAS=m
CONFIG_SCSI_HPTIOP=m
CONFIG_SCSI_DMX3191D=m
CONFIG_SCSI_DTC3280=m
# CONFIG_SCSI_FUTURE_DOMAIN is not set
CONFIG_SCSI_GENERIC_NCR5380=m
CONFIG_SCSI_GENERIC_NCR5380_MMIO=m
CONFIG_SCSI_GENERIC_NCR53C400=y
CONFIG_SCSI_IPS=m
CONFIG_SCSI_INITIO=m
CONFIG_SCSI_INIA100=m
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
CONFIG_SCSI_MVSAS=m
CONFIG_SCSI_NCR53C406A=m
CONFIG_SCSI_LASI700=m
CONFIG_53C700_LE_ON_BE=y
CONFIG_SCSI_STEX=m
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
CONFIG_SCSI_ZALON=m
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_PAS16 is not set
CONFIG_SCSI_QLOGIC_FAS=m
CONFIG_SCSI_QLOGIC_1280=m
CONFIG_SCSI_QLA_FC=m
CONFIG_SCSI_QLA_ISCSI=m
CONFIG_SCSI_LPFC=m
CONFIG_SCSI_SIM710=m
CONFIG_SCSI_SYM53C416=m
CONFIG_SCSI_DC395x=m
CONFIG_SCSI_DC390T=m
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_DEBUG is not set
CONFIG_SCSI_SRP=m
CONFIG_SCSI_DH=m
CONFIG_SCSI_DH_RDAC=m
CONFIG_SCSI_DH_HP_SW=m
CONFIG_SCSI_DH_EMC=m
CONFIG_SCSI_DH_ALUA=m
CONFIG_ATA=m
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_SATA_PMP=y
CONFIG_SATA_AHCI=m
CONFIG_SATA_SIL24=m
CONFIG_ATA_SFF=y
CONFIG_SATA_SVW=m
CONFIG_ATA_PIIX=m
CONFIG_SATA_MV=m
CONFIG_SATA_NV=m
CONFIG_PDC_ADMA=m
CONFIG_SATA_QSTOR=m
CONFIG_SATA_PROMISE=m
CONFIG_SATA_SX4=m
CONFIG_SATA_SIL=m
CONFIG_SATA_SIS=m
CONFIG_SATA_ULI=m
CONFIG_SATA_VIA=m
CONFIG_SATA_VITESSE=m
CONFIG_SATA_INIC162X=m
CONFIG_PATA_ALI=m
CONFIG_PATA_AMD=m
CONFIG_PATA_ARTOP=m
CONFIG_PATA_ATIIXP=m
CONFIG_PATA_CMD640_PCI=m
CONFIG_PATA_CMD64X=m
CONFIG_PATA_CS5520=m
CONFIG_PATA_CS5530=m
CONFIG_PATA_CYPRESS=m
CONFIG_PATA_EFAR=m
CONFIG_ATA_GENERIC=m
CONFIG_PATA_HPT366=m
CONFIG_PATA_HPT37X=m
CONFIG_PATA_HPT3X2N=m
CONFIG_PATA_HPT3X3=m
CONFIG_PATA_HPT3X3_DMA=y
CONFIG_PATA_IT821X=m
CONFIG_PATA_IT8213=m
CONFIG_PATA_JMICRON=m
CONFIG_PATA_LEGACY=m
CONFIG_PATA_TRIFLEX=m
CONFIG_PATA_MARVELL=m
CONFIG_PATA_MPIIX=m
CONFIG_PATA_OLDPIIX=m
CONFIG_PATA_NETCELL=m
CONFIG_PATA_NINJA32=m
CONFIG_PATA_NS87410=m
CONFIG_PATA_NS87415=m
CONFIG_PATA_OPTI=m
CONFIG_PATA_OPTIDMA=m
CONFIG_PATA_PDC_OLD=m
CONFIG_PATA_QDI=m
CONFIG_PATA_RADISYS=m
CONFIG_PATA_RZ1000=m
CONFIG_PATA_SC1200=m
CONFIG_PATA_SERVERWORKS=m
CONFIG_PATA_PDC2027X=m
CONFIG_PATA_SIL680=m
CONFIG_PATA_SIS=m
CONFIG_PATA_VIA=m
CONFIG_PATA_WINBOND=m
CONFIG_PATA_WINBOND_VLB=m
CONFIG_PATA_SCH=m
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
CONFIG_MD_RAID5_RESHAPE=y
CONFIG_MD_MULTIPATH=m
CONFIG_MD_FAULTY=m
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_DELAY=m
CONFIG_DM_UEVENT=y
CONFIG_FUSION=y
CONFIG_FUSION_SPI=m
CONFIG_FUSION_FC=m
CONFIG_FUSION_SAS=m
CONFIG_FUSION_MAX_SGE=40
CONFIG_FUSION_CTL=m
# CONFIG_FUSION_LAN is not set
# CONFIG_FUSION_LOGGING is not set

#
# IEEE 1394 (FireWire) support
#

#
# Enable only one of the two stacks, unless you know what you are doing
#
CONFIG_FIREWIRE=m
CONFIG_FIREWIRE_OHCI=m
CONFIG_FIREWIRE_OHCI_DEBUG=y
CONFIG_FIREWIRE_SBP2=m
# CONFIG_IEEE1394 is not set
CONFIG_I2O=m
CONFIG_I2O_LCT_NOTIFY_ON_CHANGES=y
CONFIG_I2O_EXT_ADAPTEC=y
CONFIG_I2O_EXT_ADAPTEC_DMA64=y
CONFIG_I2O_CONFIG=m
CONFIG_I2O_CONFIG_OLD_IOCTL=y
CONFIG_I2O_BUS=m
CONFIG_I2O_BLOCK=m
CONFIG_I2O_SCSI=m
CONFIG_I2O_PROC=m
CONFIG_NETDEVICES=y
CONFIG_IFB=m
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
CONFIG_MACVLAN=m
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
CONFIG_VETH=m
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
CONFIG_ICPLUS_PHY=m
CONFIG_REALTEK_PHY=m
CONFIG_MDIO_BITBANG=m
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
CONFIG_LASI_82596=m
CONFIG_HAPPYMEAL=m
CONFIG_SUNGEM=m
CONFIG_CASSINI=m
CONFIG_NET_VENDOR_3COM=y
# CONFIG_EL1 is not set
# CONFIG_EL2 is not set
# CONFIG_EL16 is not set
# CONFIG_EL3 is not set
CONFIG_VORTEX=m
CONFIG_TYPHOON=m
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=m
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
CONFIG_TULIP_NAPI=y
CONFIG_TULIP_NAPI_HW_MITIGATION=y
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
CONFIG_ULI526X=m
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
CONFIG_PCNET32=m
CONFIG_AMD8111_ETH=m
CONFIG_ADAPTEC_STARFIRE=m
# CONFIG_AC3200 is not set
# CONFIG_APRICOT is not set
CONFIG_B44=m
CONFIG_B44_PCI_AUTOSELECT=y
CONFIG_B44_PCICORE_AUTOSELECT=y
CONFIG_B44_PCI=y
CONFIG_FORCEDETH=m
CONFIG_FORCEDETH_NAPI=y
CONFIG_CS89x0=m
# CONFIG_EEPRO100 is not set
CONFIG_E100=m
# CONFIG_LNE390 is not set
CONFIG_FEALNX=m
CONFIG_NATSEMI=m
CONFIG_NE2K_PCI=m
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
CONFIG_8139CP=m
CONFIG_8139TOO=m
# CONFIG_8139TOO_PIO is not set
CONFIG_8139TOO_TUNE_TWISTER=y
CONFIG_8139TOO_8129=y
# CONFIG_8139_OLD_RX_RESET is not set
CONFIG_R6040=m
CONFIG_SIS900=m
CONFIG_EPIC100=m
CONFIG_SUNDANCE=m
CONFIG_SUNDANCE_MMIO=y
CONFIG_TLAN=m
CONFIG_VIA_RHINE=m
CONFIG_VIA_RHINE_MMIO=y
# CONFIG_SC92031 is not set
# CONFIG_NET_POCKET is not set
CONFIG_ATL2=m
CONFIG_NETDEV_1000=y
CONFIG_ACENIC=m
# CONFIG_ACENIC_OMIT_TIGON_I is not set
CONFIG_DL2K=m
CONFIG_E1000=m
CONFIG_E1000E=m
CONFIG_IP1000=m
CONFIG_IGB=m
CONFIG_IGB_LRO=y
CONFIG_NS83820=m
CONFIG_HAMACHI=m
CONFIG_YELLOWFIN=m
CONFIG_R8169=m
CONFIG_R8169_VLAN=y
CONFIG_SIS190=m
CONFIG_SKGE=m
# CONFIG_SKGE_DEBUG is not set
CONFIG_SKY2=m
# CONFIG_SKY2_DEBUG is not set
CONFIG_VIA_VELOCITY=m
CONFIG_TIGON3=m
CONFIG_BNX2=m
CONFIG_QLA3XXX=m
CONFIG_ATL1=m
CONFIG_ATL1E=m
CONFIG_JME=m
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set

#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 is not set
# CONFIG_IWLWIFI_LEDS is not set
# CONFIG_WAN is not set
CONFIG_FDDI=y
CONFIG_DEFXX=m
CONFIG_DEFXX_MMIO=y
CONFIG_SKFP=m
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
CONFIG_PPPOL2TP=m
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLHC=m
CONFIG_SLIP_SMART=y
CONFIG_SLIP_MODE_SLIP6=y
CONFIG_NET_FC=y
CONFIG_NETCONSOLE=m
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
CONFIG_NETPOLL_TRAP=y
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=m
# CONFIG_INPUT_POLLDEV is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
CONFIG_KEYBOARD_HIL_OLD=m
CONFIG_KEYBOARD_HIL=m
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=m
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_INPORT is not set
# CONFIG_MOUSE_LOGIBM is not set
# CONFIG_MOUSE_PC110PAD is not set
# CONFIG_MOUSE_VSXXXAA is not set
CONFIG_MOUSE_HIL=m
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_UINPUT is not set
CONFIG_HP_SDC_RTC=m

#
# Hardware I/O ports
#
CONFIG_SERIO=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_PARKBD is not set
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=m
CONFIG_HIL_MLC=m
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_DEVKMEM=y
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=16
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_FOURPORT=m
CONFIG_SERIAL_8250_ACCENT=m
CONFIG_SERIAL_8250_BOCA=m
CONFIG_SERIAL_8250_EXAR_ST16C554=m
CONFIG_SERIAL_8250_HUB6=m
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_MUX=y
CONFIG_SERIAL_MUX_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_PRINTER is not set
# CONFIG_PPDEV is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
# CONFIG_SPI is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
# CONFIG_SSB_B43_PCI_BRIDGE is not set
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_REGULATOR is not set

#
# Multimedia devices
#

#
# Multimedia core support
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
# CONFIG_VIDEO_MEDIA is not set

#
# Multimedia drivers
#
# CONFIG_DAB is not set

#
# Graphics support
#
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=m
# CONFIG_BACKLIGHT_CORGI is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_SEQUENCER=m
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_MPU401_UART=m
CONFIG_SND_OPL3_LIB=m
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
CONFIG_SND_DUMMY=m
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
CONFIG_SND_MTS64=m
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
CONFIG_SND_PORTMAN2X4=m
CONFIG_SND_AC97_POWER_SAVE=y
CONFIG_SND_AC97_POWER_SAVE_DEFAULT=0
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
CONFIG_SND_ALS300=m
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
CONFIG_SND_DARLA20=m
CONFIG_SND_GINA20=m
CONFIG_SND_LAYLA20=m
CONFIG_SND_DARLA24=m
CONFIG_SND_GINA24=m
CONFIG_SND_LAYLA24=m
CONFIG_SND_MONA=m
CONFIG_SND_MIA=m
CONFIG_SND_ECHO3G=m
CONFIG_SND_INDIGO=m
CONFIG_SND_INDIGOIO=m
CONFIG_SND_INDIGODJ=m
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
CONFIG_SND_HDSPM=m
# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
CONFIG_SND_PCXHR=m
CONFIG_SND_RIPTIDE=m
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
CONFIG_SND_GSC=y
CONFIG_SND_HARMONY=m
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
CONFIG_HID_SUPPORT=y
CONFIG_HID=m
# CONFIG_HID_DEBUG is not set
# CONFIG_HIDRAW is not set
CONFIG_HID_PID=y

#
# Special HID drivers
#
CONFIG_HID_COMPAT=y
# CONFIG_USB_SUPPORT is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=m

#
# LED drivers
#

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
# CONFIG_ACCESSIBILITY is not set
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
CONFIG_INFINIBAND_USER_MEM=y
CONFIG_INFINIBAND_ADDR_TRANS=y
CONFIG_INFINIBAND_MTHCA=m
CONFIG_INFINIBAND_MTHCA_DEBUG=y
CONFIG_INFINIBAND_IPATH=m
CONFIG_INFINIBAND_AMSO1100=m
# CONFIG_INFINIBAND_AMSO1100_DEBUG is not set
# CONFIG_MLX4_INFINIBAND is not set
# CONFIG_INFINIBAND_NES is not set
CONFIG_INFINIBAND_IPOIB=m
# CONFIG_INFINIBAND_IPOIB_CM is not set
CONFIG_INFINIBAND_IPOIB_DEBUG=y
# CONFIG_INFINIBAND_IPOIB_DEBUG_DATA is not set
CONFIG_INFINIBAND_SRP=m
CONFIG_INFINIBAND_ISER=m
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_PARISC=y
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_STAGING is not set

#
# File systems
#
CONFIG_EXT2_FS=m
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=m
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_EXT4_FS=m
# CONFIG_EXT4DEV_COMPAT is not set
CONFIG_EXT4_FS_XATTR=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
CONFIG_JBD=m
# CONFIG_JBD_DEBUG is not set
CONFIG_JBD2=m
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=m
CONFIG_REISERFS_FS=m
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_JFS_FS=m
CONFIG_JFS_POSIX_ACL=y
CONFIG_JFS_SECURITY=y
# CONFIG_JFS_DEBUG is not set
# CONFIG_JFS_STATISTICS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_FILE_LOCKING=y
CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
# CONFIG_XFS_DEBUG is not set
CONFIG_GFS2_FS=m
CONFIG_GFS2_FS_LOCKING_DLM=m
CONFIG_OCFS2_FS=m
CONFIG_OCFS2_FS_O2CB=m
CONFIG_OCFS2_FS_USERSPACE_CLUSTER=m
CONFIG_OCFS2_FS_STATS=y
CONFIG_OCFS2_DEBUG_MASKLOG=y
# CONFIG_OCFS2_DEBUG_FS is not set
# CONFIG_OCFS2_COMPAT_JBD is not set
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_GENERIC_ACL=y

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_NTFS_FS=m
# CONFIG_NTFS_DEBUG is not set
CONFIG_NTFS_RW=y

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=m

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=m
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_SUNRPC_XPRT_RDMA=m
# CONFIG_SUNRPC_REGISTER_V4 is not set
CONFIG_RPCSEC_GSS_KRB5=m
CONFIG_RPCSEC_GSS_SPKM3=m
CONFIG_SMB_FS=m
CONFIG_SMB_NLS_DEFAULT=y
CONFIG_SMB_NLS_REMOTE="cp437"
CONFIG_CIFS=m
# CONFIG_CIFS_STATS is not set
CONFIG_CIFS_WEAK_PW_HASH=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
# CONFIG_CIFS_DEBUG2 is not set
CONFIG_CIFS_EXPERIMENTAL=y
CONFIG_CIFS_DFS_UPCALL=y
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
CONFIG_OSF_PARTITION=y
CONFIG_AMIGA_PARTITION=y
CONFIG_ATARI_PARTITION=y
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_LDM_PARTITION=y
# CONFIG_LDM_DEBUG is not set
CONFIG_SGI_PARTITION=y
CONFIG_ULTRIX_PARTITION=y
CONFIG_SUN_PARTITION=y
CONFIG_KARMA_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_SYSV68_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
CONFIG_DLM=m
# CONFIG_DLM_DEBUG is not set

#
# Kernel hacking
#
CONFIG_PRINTK_TIME=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_PI_LIST=y
# CONFIG_RT_MUTEX_TESTER is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_DETECTOR=y
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_SYSCTL_SYSCALL_CHECK is not set

#
# Tracers
#
# CONFIG_SCHED_TRACER is not set
# CONFIG_CONTEXT_SWITCH_TRACER is not set
# CONFIG_BOOT_TRACER is not set
# CONFIG_FIREWIRE_OHCI_REMOTE_DMA is not set
# CONFIG_DYNAMIC_PRINTK_DEBUG is not set
# CONFIG_SAMPLES is not set
CONFIG_DEBUG_RODATA=y

#
# Security options
#
CONFIG_KEYS=y
CONFIG_KEYS_DEBUG_PROC_KEYS=y
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
CONFIG_SECURITY_FILE_CAPABILITIES=y
CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=0
# CONFIG_SECURITY_SMACK is not set
CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_FIPS=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=m
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_MANAGER=m
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_SEQIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=m
CONFIG_CRYPTO_XCBC=m

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=m
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_LZO=m

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_HIFN_795X=m
CONFIG_CRYPTO_DEV_HIFN_795X_RNG=y

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
CONFIG_CRC_T10DIF=m
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=m
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=m
CONFIG_LZO_DECOMPRESS=m
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CHECK_SIGNATURE=y

-- 
Meelis Roos (mroos@linux.ee)
--
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Subject: [git patches] parisc patches for v2.6.29
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The following changes since commit fe0bdec68b77020281dc814805edfe594ae89e0f:
  Linus Torvalds (1):
        Merge branch 'audit.b61' of git://git.kernel.org/.../viro/audit-current

are available in the git repository at:

  /pub/scm/linux/kernel/git/kyle/parisc-2.6.git master

Adrian Bunk (2):
      parisc: lib/: make code static
      parisc: drivers/parisc/: make code static

FUJITA Tomonori (1):
      parisc: remove dead BIO_VMERGE_BOUNDARY and BIO_VMERGE_MAX_SIZE definitions

Harvey Harrison (1):
      parisc: use the new byteorder headers

Helge Deller (4):
      parisc: fix GFP_KERNEL use while atomic in unwinder
      parisc: trivial fixes
      parisc: Replace NR_CPUS in parisc code
      parisc: add uevent helper for parisc bus

Julia Lawall (1):
      parisc: Use DEFINE_SPINLOCK

Kyle McMartin (7):
      parisc: use leX_to_cpu in place of __fswabX
      parisc: factor out sid to protid conversion
      parisc: fix braino in commit adding __space_to_prot
      parisc: quiet palo not-found message from "which"
      parisc: fix ipv6 checksum
      parisc: fix kernel crash (protection id trap) when compiling ruby1.9
      parisc: export length of os_hpmc vector

Roel Kluin (1):
      parisc: set_time() catch errors

 arch/parisc/Makefile                  |    2 +-
 arch/parisc/include/asm/byteorder.h   |   37 ++++++------------
 arch/parisc/include/asm/checksum.h    |    2 +-
 arch/parisc/include/asm/io.h          |   12 +----
 arch/parisc/include/asm/mmu_context.h |   13 ++++--
 arch/parisc/include/asm/processor.h   |    4 +-
 arch/parisc/include/asm/uaccess.h     |    2 +
 arch/parisc/kernel/drivers.c          |   40 ++++++++++++++++---
 arch/parisc/kernel/hpmc.S             |    8 +++-
 arch/parisc/kernel/irq.c              |   11 +++--
 arch/parisc/kernel/pdc_cons.c         |    2 +-
 arch/parisc/kernel/perf.c             |    4 +-
 arch/parisc/kernel/processor.c        |   68 +++++++++++++++++----------------
 arch/parisc/kernel/setup.c            |   11 +----
 arch/parisc/kernel/smp.c              |   32 +++++++--------
 arch/parisc/kernel/time.c             |    4 +-
 arch/parisc/kernel/topology.c         |    4 +-
 arch/parisc/kernel/traps.c            |    9 +++-
 arch/parisc/kernel/unwind.c           |    2 +-
 arch/parisc/lib/iomap.c               |    2 +-
 arch/parisc/lib/memcpy.c              |    2 +-
 arch/parisc/mm/fault.c                |   58 +++++++++++++++-------------
 drivers/parisc/asp.c                  |    3 +-
 drivers/parisc/ccio-dma.c             |    4 +-
 drivers/parisc/dino.c                 |    4 +-
 drivers/parisc/hppb.c                 |    2 +-
 drivers/parisc/lasi.c                 |    5 +-
 drivers/parisc/lba_pci.c              |    2 +-
 drivers/parisc/sba_iommu.c            |    9 +---
 drivers/parisc/wax.c                  |    3 +-
 drivers/rtc/rtc-parisc.c              |    3 +-
 31 files changed, 191 insertions(+), 173 deletions(-)

From - Thu Nov 08 21:03:29 2018
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: RCU detected CPU 0 stall & timer_interrupt(CPU 0): delayed!
Date: Fri, 9 Jan 2009 19:12:58 +0200 (EET)
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> I tried stock 2.6.28 on a parisc64 machine (L1000). 2.6.27 worked fine 
> (except 2 bootup warnings that are known here as I was told). I turned 
> on some debugging options for the current kernel, among them RCU stall 
> detection, and it triggered quite some. In spite of the warnings, the 
> computer seems to work fine. But I'm writing here because this might 
> interest somebody.

Turned off RCU stall detection and now the messages are gon as expected, 
everything works fine. This is the same as 2.6.27 without the RCU stall 
check.

-- 
Meelis Roos (mroos@linux.ee)
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From: Harvey Harrison <harvey.harrison@gmail.com>
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Subject: [PATCH] parisc: introduce asm/swab.h
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Fix for the linux/byteorder.h removal.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
---
Linus, please apply after doing the parisc pull.  cris is the only
arch still outstanding.

Done with git diff -M -B

Harvey

 arch/parisc/include/asm/Kbuild                  |    1 +
 arch/parisc/include/asm/byteorder.h             |   76 ++--------------------
 arch/parisc/include/asm/{byteorder.h => swab.h} |    9 +--
 3 files changed, 11 insertions(+), 75 deletions(-)

diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index f88b252..2121d99 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -1,3 +1,4 @@
 include include/asm-generic/Kbuild.asm
 
 unifdef-y += pdc.h
+unifdef-y += swab.h
diff --git a/arch/parisc/include/asm/byteorder.h b/arch/parisc/include/asm/byteorder.h
dissimilarity index 94%
index 83095c5..da66029 100644
--- a/arch/parisc/include/asm/byteorder.h
+++ b/arch/parisc/include/asm/byteorder.h
@@ -1,69 +1,7 @@
-#ifndef _PARISC_BYTEORDER_H
-#define _PARISC_BYTEORDER_H
-
-#include <asm/types.h>
-#include <linux/compiler.h>
-
-#define __BIG_ENDIAN
-#define __SWAB_64_THRU_32__
-
-static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
-{
-	__asm__("dep %0, 15, 8, %0\n\t"		/* deposit 00ab -> 0bab */
-		"shd %%r0, %0, 8, %0"		/* shift 000000ab -> 00ba */
-		: "=r" (x)
-		: "0" (x));
-	return x;
-}
-#define __arch_swab16 __arch_swab16
-
-static inline __attribute_const__ __u32 __arch_swab24(__u32 x)
-{
-	__asm__("shd %0, %0, 8, %0\n\t"		/* shift xabcxabc -> cxab */
-		"dep %0, 15, 8, %0\n\t"		/* deposit cxab -> cbab */
-		"shd %%r0, %0, 8, %0"		/* shift 0000cbab -> 0cba */
-		: "=r" (x)
-		: "0" (x));
-	return x;
-}
-
-static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
-{
-	unsigned int temp;
-	__asm__("shd %0, %0, 16, %1\n\t"	/* shift abcdabcd -> cdab */
-		"dep %1, 15, 8, %1\n\t"		/* deposit cdab -> cbab */
-		"shd %0, %1, 8, %0"		/* shift abcdcbab -> dcba */
-		: "=r" (x), "=&r" (temp)
-		: "0" (x));
-	return x;
-}
-#define __arch_swab32 __arch_swab32
-
-#if BITS_PER_LONG > 32
-/*
-** From "PA-RISC 2.0 Architecture", HP Professional Books.
-** See Appendix I page 8 , "Endian Byte Swapping".
-**
-** Pretty cool algorithm: (* == zero'd bits)
-**      PERMH   01234567 -> 67452301 into %0
-**      HSHL    67452301 -> 7*5*3*1* into %1
-**      HSHR    67452301 -> *6*4*2*0 into %0
-**      OR      %0 | %1  -> 76543210 into %0 (all done!)
-*/
-static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
-{
-	__u64 temp;
-	__asm__("permh,3210 %0, %0\n\t"
-		"hshl %0, 8, %1\n\t"
-		"hshr,u %0, 8, %0\n\t"
-		"or %1, %0, %0"
-		: "=r" (x), "=&r" (temp)
-		: "0" (x));
-	return x;
-}
-#define __arch_swab64 __arch_swab64
-#endif /* BITS_PER_LONG > 32 */
-
-#include <linux/byteorder.h>
-
-#endif /* _PARISC_BYTEORDER_H */
+#ifndef _PARISC_BYTEORDER_H
+#define _PARISC_BYTEORDER_H
+
+#include <asm/swab.h>
+#include <linux/byteorder/big_endian.h>
+
+#endif /* _PARISC_BYTEORDER_H */
diff --git a/arch/parisc/include/asm/byteorder.h b/arch/parisc/include/asm/swab.h
similarity index 92%
rename from arch/parisc/include/asm/byteorder.h
rename to arch/parisc/include/asm/swab.h
index 83095c5..3ff16c5 100644
--- a/arch/parisc/include/asm/byteorder.h
+++ b/arch/parisc/include/asm/swab.h
@@ -1,10 +1,9 @@
-#ifndef _PARISC_BYTEORDER_H
-#define _PARISC_BYTEORDER_H
+#ifndef _PARISC_SWAB_H
+#define _PARISC_SWAB_H
 
 #include <asm/types.h>
 #include <linux/compiler.h>
 
-#define __BIG_ENDIAN
 #define __SWAB_64_THRU_32__
 
 static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
@@ -64,6 +63,4 @@ static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
 #define __arch_swab64 __arch_swab64
 #endif /* BITS_PER_LONG > 32 */
 
-#include <linux/byteorder.h>

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commit 11c3b5c3e08f4d855cbef52883c266b9ab9df879
Author: Greg Kroah-Hartman <gregkh@suse.de>
Date:   Tue Dec 16 12:24:56 2008 -0800

    driver core: move klist_children into private structure

Broke our parisc build pretty badly because we touch the klists directly
in three cases (AGP, SBA and GSC).  Although GregKH will revert this
patch, there's no reason we should be using the iterators directly, we
can just move to the standard device_for_each_child() API.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

---

diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index db60539..699e342 100644
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -359,9 +359,16 @@ fail:
 	return error;
 }
 
-static struct device *next_device(struct klist_iter *i) {
-	struct klist_node * n = klist_next(i);
-	return n ? container_of(n, struct device, knode_parent) : NULL;
+static int
+find_quicksilver(struct device *dev, void *data)
+{
+	struct parisc_device **lba = data;
+	struct parisc_device *padev = to_parisc_device(dev);
+
+	if (IS_QUICKSILVER(padev))
+		*lba = padev;
+
+	return 0;
 }
 
 static int
@@ -372,8 +379,6 @@ parisc_agp_init(void)
 	int err = -1;
 	struct parisc_device *sba = NULL, *lba = NULL;
 	struct lba_device *lbadev = NULL;
-	struct device *dev = NULL;
-	struct klist_iter i;
 
 	if (!sba_list)
 		goto out;
@@ -386,13 +391,7 @@ parisc_agp_init(void)
 	}
 
 	/* Now search our Pluto for our precious AGP device... */
-	klist_iter_init(&sba->dev.klist_children, &i);
-	while ((dev = next_device(&i))) {
-		struct parisc_device *padev = to_parisc_device(dev);
-		if (IS_QUICKSILVER(padev))
-			lba = padev;
-	}
-	klist_iter_exit(&i);
+	device_for_each_child(&sba->dev, &lba, find_quicksilver);
 
 	if (!lba) {
 		printk(KERN_INFO DRVPFX "No AGP devices found.\n");
diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c
index e76db9e..ea8f600 100644
--- a/drivers/parisc/gsc.c
+++ b/drivers/parisc/gsc.c
@@ -186,29 +186,34 @@ void gsc_asic_assign_irq(struct gsc_asic *asic, int local_irq, int *irqp)
 	*irqp = irq;
 }
 
-static struct device *next_device(struct klist_iter *i)
+struct gsc_fixup_struct {
+	void (*choose_irq)(struct parisc_device *, void *);
+	void *ctrl;
+};
+
+static int gsc_fixup_irqs_callback(struct device *dev, void *data)
 {
-	struct klist_node * n = klist_next(i);
-	return n ? container_of(n, struct device, knode_parent) : NULL;
+	struct parisc_device *padev = to_parisc_device(dev);
+	struct gsc_fixup_struct *gf = data;
+
+	/* work-around for 715/64 and others which have parent 
+	   at path [5] and children at path [5/0/x] */
+	if (padev->id.hw_type == HPHW_FAULTY)
+		gsc_fixup_irqs(padev, gf->ctrl, gf->choose_irq);
+	gf->choose_irq(padev, gf->ctrl);
+
+	return 0;
 }
 
 void gsc_fixup_irqs(struct parisc_device *parent, void *ctrl,
 			void (*choose_irq)(struct parisc_device *, void *))
 {
-	struct device *dev;
-	struct klist_iter i;
-
-	klist_iter_init(&parent->dev.klist_children, &i);
-	while ((dev = next_device(&i))) {
-		struct parisc_device *padev = to_parisc_device(dev);
-
-		/* work-around for 715/64 and others which have parent 
-		   at path [5] and children at path [5/0/x] */
-		if (padev->id.hw_type == HPHW_FAULTY)
-			return gsc_fixup_irqs(padev, ctrl, choose_irq);
-		choose_irq(padev, ctrl);
-	}
-	klist_iter_exit(&i);
+	struct gsc_fixup_struct data = {
+		.choose_irq	= choose_irq,
+		.ctrl		= ctrl,
+	};
+
+	device_for_each_child(&parent->dev, &data, gsc_fixup_irqs_callback);
 }
 
 int gsc_common_setup(struct parisc_device *parent, struct gsc_asic *gsc_asic)
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 3fac8f8..1f5ebc2 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1206,31 +1206,49 @@ sba_alloc_pdir(unsigned int pdir_size)
 	return (void *) pdir_base;
 }
 
-static struct device *next_device(struct klist_iter *i)
+struct ibase_data_struct {
+	struct ioc *ioc;
+	int ioc_num;
+};
+
+static int setup_ibase_imask_callback(struct device *dev, void *data)
 {
-        struct klist_node * n = klist_next(i);
-        return n ? container_of(n, struct device, knode_parent) : NULL;
+	/* lba_set_iregs() is in drivers/parisc/lba_pci.c */
+        extern void lba_set_iregs(struct parisc_device *, u32, u32);
+	struct parisc_device *lba = to_parisc_device(dev);
+	struct ibase_data_struct *ibd = data;
+	int rope_num = (lba->hpa.start >> 13) & 0xf;
+	if (rope_num >> 3 == ibd->ioc_num)
+		lba_set_iregs(lba, ibd->ioc->ibase, ibd->ioc->imask);
+	return 0;
 }
 
 /* setup Mercury or Elroy IBASE/IMASK registers. */
 static void 
 setup_ibase_imask(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
 {
-	/* lba_set_iregs() is in drivers/parisc/lba_pci.c */
-        extern void lba_set_iregs(struct parisc_device *, u32, u32);
-	struct device *dev;
-	struct klist_iter i;
-
-	klist_iter_init(&sba->dev.klist_children, &i);
-	while ((dev = next_device(&i))) {
-		struct parisc_device *lba = to_parisc_device(dev);
-		int rope_num = (lba->hpa.start >> 13) & 0xf;
-		if (rope_num >> 3 == ioc_num)
-			lba_set_iregs(lba, ioc->ibase, ioc->imask);
-	}
-	klist_iter_exit(&i);
+	struct ibase_data_struct ibase_data = {
+		.ioc		= ioc,
+		.ioc_num	= ioc_num,
+	};
+
+	device_for_each_child(&sba->dev, &ibase_data,
+			      setup_ibase_imask_callback);
 }
 
+#ifdef SBA_AGP_SUPPORT
+static int
+sba_ioc_find_quicksilver(struct device *dev, void *data)
+{
+	int *agp_found = data;
+	struct parisc_device *lba = to_parisc_device(dev);
+
+	if (IS_QUICKSILVER(lba))
+		*agp_found = 1;
+	return 0;
+}
+#endif
+
 static void
 sba_ioc_init_pluto(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
 {
@@ -1332,9 +1350,6 @@ sba_ioc_init_pluto(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
 	WRITE_REG(ioc->ibase | 31, ioc->ioc_hpa + IOC_PCOM);
 
 #ifdef SBA_AGP_SUPPORT
-{
-	struct klist_iter i;
-	struct device *dev = NULL;
 
 	/*
 	** If an AGP device is present, only use half of the IOV space
@@ -1344,13 +1359,7 @@ sba_ioc_init_pluto(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
 	** We program the next pdir index after we stop w/ a key for
 	** the GART code to handshake on.
 	*/
-	klist_iter_init(&sba->dev.klist_children, &i);
-	while ((dev = next_device(&i))) {
-		struct parisc_device *lba = to_parisc_device(dev);
-		if (IS_QUICKSILVER(lba))
-			agp_found = 1;
-	}
-	klist_iter_exit(&i);
+	device_for_each_child(&sba->dev, &agp_found, sba_ioc_find_quicksilver);
 
 	if (agp_found && sba_reserve_agpgart) {
 		printk(KERN_INFO "%s: reserving %dMb of IOVA space for agpgart\n",


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From - Thu Nov 08 21:03:29 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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To: Meelis Roos <mroos@linux.ee>
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On Fri, Jan 09, 2009 at 04:58:41PM +0200, Meelis Roos wrote:
> Hello,
> 
> 
> I tried stock 2.6.28 on a parisc64 machine (L1000). 2.6.27 worked fine 
> (except 2 bootup warnings that are known here as I was told). I turned 
> on some debugging options for the current kernel, among them RCU stall 
> detection, and it triggered quite some. In spite of the warnings, the 
> computer seems to work fine. But I'm writing here because this might 
> interest somebody.

Thanks!

The "delay!" is a known bug that I've never been able to quite figure out:

> [    0.000000] Linux version 2.6.28 (mroos@hernes) (gcc version 4.3.2 (GCC) ) #1 SMP Wed Jan 7 20:04:12 EET 2009
...
> [42949385.400000] timer_interrupt(CPU 0): delayed! cycles 100001588 rem 8BD88  next/now 5048400084/514840160C
> [42949395.170000] timer_interrupt(CPU 0): delayed! cycles 1000002C8 rem 8AAC8  next/now 51487A7C04/52487A7ECC
> [42949404.940000] timer_interrupt(CPU 0): delayed! cycles 1000002B1 rem 8AAB1  next/now 5248B4F784/5348B4FA35
> [42949404.940000] RCU detected CPU 0 stall (t=4294940494/977 jiffies)
....

It looks like the two are related given it's 4.2B/977 jiffies.
But it's not consistent (rated limited kernel messages?).

I suspect the problem is we have to program the CR16 timer but
can only write the lower 32-bits. It would be something like
by the time we actually write CR16, we've passed the computed
trigger value.  ISTR we added a "fudge factor" for this case but
maybe it's not sufficient or something else is interferring.
I'm wondering if the code should read CR16 back , figure out
what the "current" difference is and double check that we didn't
miss the window.

thanks,
grant
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From - Thu Nov 08 21:03:29 2018
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From: Mike Travis <travis@sgi.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 6/8] parisc irq: update parisc for new irq_desc
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Impact: cleanup, update to new cpumask API

Irq_desc.affinity and irq_desc.pending_mask are now cpumask_var_t's
so access to them should be using the new cpumask API.

Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: <linux-parisc@vger.kernel.org>
---
 arch/parisc/kernel/irq.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- linux-2.6-for-ingo.orig/arch/parisc/kernel/irq.c
+++ linux-2.6-for-ingo/arch/parisc/kernel/irq.c
@@ -120,7 +120,7 @@ int cpu_check_affinity(unsigned int irq,
 	if (CHECK_IRQ_PER_CPU(irq)) {
 		/* Bad linux design decision.  The mask has already
 		 * been set; we must reset it */
-		irq_desc[irq].affinity = CPU_MASK_ALL;
+		cpumask_setall(irq_desc[irq].affinity);
 		return -EINVAL;
 	}
 
@@ -136,7 +136,7 @@ static void cpu_set_affinity_irq(unsigne
 	if (cpu_check_affinity(irq, dest))
 		return;
 
-	irq_desc[irq].affinity = *dest;
+	cpumask_copy(irq_desc[irq].affinity, dest);
 }
 #endif
 
@@ -295,7 +295,7 @@ int txn_alloc_irq(unsigned int bits_wide
 unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 {
 #ifdef CONFIG_SMP
-	irq_desc[irq].affinity = cpumask_of_cpu(cpu);
+	cpumask_copy(irq_desc[irq].affinity, cpumask_of(cpu));
 #endif
 
 	return per_cpu(cpu_data, cpu).txn_addr;
@@ -352,7 +352,7 @@ void do_cpu_irq_mask(struct pt_regs *reg
 	irq = eirr_to_irq(eirr_val);
 
 #ifdef CONFIG_SMP
-	dest = irq_desc[irq].affinity;
+	cpumask_copy(&dest, irq_desc[irq].affinity);
 	if (CHECK_IRQ_PER_CPU(irq_desc[irq].status) &&
 	    !cpu_isset(smp_processor_id(), dest)) {
 		int cpu = first_cpu(dest);

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From: Kyle McMartin <kyle@infradead.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 6/8] parisc irq: update parisc for new irq_desc
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Cc: Ingo Molnar <mingo@redhat.com>,
	Rusty Russell <rusty@rustcorp.com.au>,
	Andrew Morton <akpm@linux-foundation.org>,
	Jack Steiner <steiner@sgi.com>, linux-kernel@vger.kernel.org,
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	Grant Grundler <grundler@parisc-linux.org>,
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To: Mike Travis <travis@sgi.com>
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On Mon, Jan 12, 2009 at 02:05:25PM -0800, Mike Travis wrote:
> Impact: cleanup, update to new cpumask API
> 
> Irq_desc.affinity and irq_desc.pending_mask are now cpumask_var_t's
> so access to them should be using the new cpumask API.
>

ok. 
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Subject: [PATCH] parisc: fix section mismatch warnings
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 03f26bd..f6d2412 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -151,7 +151,7 @@ static void convert_to_wide(unsigned long *addr)
 }
 
 #ifdef CONFIG_64BIT
-void __init set_firmware_width_unlocked(void)
+void __cpuinit set_firmware_width_unlocked(void)
 {
 	int ret;
 
@@ -168,7 +168,7 @@ void __init set_firmware_width_unlocked(void)
  * This function must be called before any pdc_* function that uses the
  * convert_to_wide function.
  */
-void __init set_firmware_width(void)
+void __cpuinit set_firmware_width(void)
 {
 	unsigned long flags;
 	spin_lock_irqsave(&pdc_lock, flags);
@@ -176,11 +176,11 @@ void __init set_firmware_width(void)
 	spin_unlock_irqrestore(&pdc_lock, flags);
 }
 #else
-void __init set_firmware_width_unlocked(void) {
+void __cpuinit set_firmware_width_unlocked(void) {
 	return;
 }
 
-void __init set_firmware_width(void) {
+void __cpuinit set_firmware_width(void) {
 	return;
 }
 #endif /*CONFIG_64BIT*/
@@ -302,7 +302,7 @@ int pdc_chassis_warn(unsigned long *warn)
 	return retval;
 }
 
-int __init pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
+int __cpuinit pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
 {
 	int ret;
 
@@ -323,7 +323,7 @@ int __init pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
  * This PDC call returns the presence and status of all the coprocessors
  * attached to the processor.
  */
-int __init pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info)
+int __cpuinit pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info)
 {
 	int ret;
 	unsigned long flags;
--
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Subject: [PATCH] parisc: fix `struct pt_regs' declared inside parameter list
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Fix those compile warnings:
uaccess.h:244: warning: `struct pt_regs' declared inside parameter list
uaccess.h:244: warning: its scope is only this definition or declaration, which is probably not what you want

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 1c6dbb6..cd4c0b2 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -241,6 +241,7 @@ unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned lo
 #define __copy_to_user_inatomic __copy_to_user
 #define __copy_from_user_inatomic __copy_from_user
 
+struct pt_regs;
 int fixup_exception(struct pt_regs *regs);
 
 #endif /* __PARISC_UACCESS_H */
--
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
index bd9a4db..5cbe9f9 100644
--- a/arch/parisc/hpux/fs.c
+++ b/arch/parisc/hpux/fs.c
@@ -137,7 +137,6 @@ int hpux_getdents(unsigned int fd, struct hpux_dirent __user *dirent, unsigned i
 			error = count - buf.count;
 	}
 
-out_putf:
 	fput(file);
 out:
 	return error;
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: fix dev_printk() compile warnings for accessing a
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Fix compile warnings:
drivers/scsi/zalon.c: In function `zalon_probe':
drivers/scsi/zalon.c:140: warning: passing arg 1 of `dev_driver_string' from incompatible pointer type
drivers/scsi/zalon.c:140: warning: passing arg 1 of `dev_name' from incompatible pointer type

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/scsi/lasi700.c b/drivers/scsi/lasi700.c
index 4a4e695..f23c4ca 100644
--- a/drivers/scsi/lasi700.c
+++ b/drivers/scsi/lasi700.c
@@ -103,7 +103,7 @@ lasi700_probe(struct parisc_device *dev)
 
 	hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL);
 	if (!hostdata) {
-		dev_printk(KERN_ERR, dev, "Failed to allocate host data\n");
+		dev_printk(KERN_ERR, &dev->dev, "Failed to allocate host data\n");
 		return -ENOMEM;
 	}
 
diff --git a/drivers/scsi/zalon.c b/drivers/scsi/zalon.c
index a8d61a6..97f3158 100644
--- a/drivers/scsi/zalon.c
+++ b/drivers/scsi/zalon.c
@@ -137,7 +137,7 @@ zalon_probe(struct parisc_device *dev)
 		goto fail;
 
 	if (request_irq(dev->irq, ncr53c8xx_intr, IRQF_SHARED, "zalon", host)) {
-	  dev_printk(KERN_ERR, dev, "irq problem with %d, detaching\n ",
+	  dev_printk(KERN_ERR, &dev->dev, "irq problem with %d, detaching\n ",
 		     dev->irq);
 		goto fail;
 	}
--
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On Tue, Jan 13, 2009 at 09:14:51PM +0100, Helge Deller wrote:
> Fix compile warnings:
> drivers/scsi/zalon.c: In function `zalon_probe':
> drivers/scsi/zalon.c:140: warning: passing arg 1 of `dev_driver_string' from incompatible pointer type
> drivers/scsi/zalon.c:140: warning: passing arg 1 of `dev_name' from incompatible pointer type
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/drivers/scsi/lasi700.c b/drivers/scsi/lasi700.c
> index 4a4e695..f23c4ca 100644
> --- a/drivers/scsi/lasi700.c
> +++ b/drivers/scsi/lasi700.c
> @@ -103,7 +103,7 @@ lasi700_probe(struct parisc_device *dev)
>  
>  	hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL);
>  	if (!hostdata) {
> -		dev_printk(KERN_ERR, dev, "Failed to allocate host data\n");
> +		dev_printk(KERN_ERR, &dev->dev, "Failed to allocate host data\n");

Huh, I thought there was a pretty macro thingy that casted to the
embedded struct device. Oh well.

applied.
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From - Thu Nov 08 21:03:30 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] remove klist iterators
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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James Bottomley wrote:
> commit 11c3b5c3e08f4d855cbef52883c266b9ab9df879
> Author: Greg Kroah-Hartman <gregkh@suse.de>
> Date:   Tue Dec 16 12:24:56 2008 -0800
> 
>     driver core: move klist_children into private structure
> 
> Broke our parisc build pretty badly because we touch the klists directly
> in three cases (AGP, SBA and GSC).  Although GregKH will revert this
> patch, there's no reason we should be using the iterators directly, we
> can just move to the standard device_for_each_child() API.
> 
> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

I just tested this patch on my 715/64 and c3000 with 2.6.29-rc1. Everything OK.

Tested-by: Helge Deller <deller@gmx.de>



> ---
> 
> diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
> index db60539..699e342 100644
> --- a/drivers/char/agp/parisc-agp.c
> +++ b/drivers/char/agp/parisc-agp.c
> @@ -359,9 +359,16 @@ fail:
>  	return error;
>  }
>  
> -static struct device *next_device(struct klist_iter *i) {
> -	struct klist_node * n = klist_next(i);
> -	return n ? container_of(n, struct device, knode_parent) : NULL;
> +static int
> +find_quicksilver(struct device *dev, void *data)
> +{
> +	struct parisc_device **lba = data;
> +	struct parisc_device *padev = to_parisc_device(dev);
> +
> +	if (IS_QUICKSILVER(padev))
> +		*lba = padev;
> +
> +	return 0;
>  }
>  
>  static int
> @@ -372,8 +379,6 @@ parisc_agp_init(void)
>  	int err = -1;
>  	struct parisc_device *sba = NULL, *lba = NULL;
>  	struct lba_device *lbadev = NULL;
> -	struct device *dev = NULL;
> -	struct klist_iter i;
>  
>  	if (!sba_list)
>  		goto out;
> @@ -386,13 +391,7 @@ parisc_agp_init(void)
>  	}
>  
>  	/* Now search our Pluto for our precious AGP device... */
> -	klist_iter_init(&sba->dev.klist_children, &i);
> -	while ((dev = next_device(&i))) {
> -		struct parisc_device *padev = to_parisc_device(dev);
> -		if (IS_QUICKSILVER(padev))
> -			lba = padev;
> -	}
> -	klist_iter_exit(&i);
> +	device_for_each_child(&sba->dev, &lba, find_quicksilver);
>  
>  	if (!lba) {
>  		printk(KERN_INFO DRVPFX "No AGP devices found.\n");
> diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c
> index e76db9e..ea8f600 100644
> --- a/drivers/parisc/gsc.c
> +++ b/drivers/parisc/gsc.c
> @@ -186,29 +186,34 @@ void gsc_asic_assign_irq(struct gsc_asic *asic, int local_irq, int *irqp)
>  	*irqp = irq;
>  }
>  
> -static struct device *next_device(struct klist_iter *i)
> +struct gsc_fixup_struct {
> +	void (*choose_irq)(struct parisc_device *, void *);
> +	void *ctrl;
> +};
> +
> +static int gsc_fixup_irqs_callback(struct device *dev, void *data)
>  {
> -	struct klist_node * n = klist_next(i);
> -	return n ? container_of(n, struct device, knode_parent) : NULL;
> +	struct parisc_device *padev = to_parisc_device(dev);
> +	struct gsc_fixup_struct *gf = data;
> +
> +	/* work-around for 715/64 and others which have parent 
> +	   at path [5] and children at path [5/0/x] */
> +	if (padev->id.hw_type == HPHW_FAULTY)
> +		gsc_fixup_irqs(padev, gf->ctrl, gf->choose_irq);
> +	gf->choose_irq(padev, gf->ctrl);
> +
> +	return 0;
>  }
>  
>  void gsc_fixup_irqs(struct parisc_device *parent, void *ctrl,
>  			void (*choose_irq)(struct parisc_device *, void *))
>  {
> -	struct device *dev;
> -	struct klist_iter i;
> -
> -	klist_iter_init(&parent->dev.klist_children, &i);
> -	while ((dev = next_device(&i))) {
> -		struct parisc_device *padev = to_parisc_device(dev);
> -
> -		/* work-around for 715/64 and others which have parent 
> -		   at path [5] and children at path [5/0/x] */
> -		if (padev->id.hw_type == HPHW_FAULTY)
> -			return gsc_fixup_irqs(padev, ctrl, choose_irq);
> -		choose_irq(padev, ctrl);
> -	}
> -	klist_iter_exit(&i);
> +	struct gsc_fixup_struct data = {
> +		.choose_irq	= choose_irq,
> +		.ctrl		= ctrl,
> +	};
> +
> +	device_for_each_child(&parent->dev, &data, gsc_fixup_irqs_callback);
>  }
>  
>  int gsc_common_setup(struct parisc_device *parent, struct gsc_asic *gsc_asic)
> diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
> index 3fac8f8..1f5ebc2 100644
> --- a/drivers/parisc/sba_iommu.c
> +++ b/drivers/parisc/sba_iommu.c
> @@ -1206,31 +1206,49 @@ sba_alloc_pdir(unsigned int pdir_size)
>  	return (void *) pdir_base;
>  }
>  
> -static struct device *next_device(struct klist_iter *i)
> +struct ibase_data_struct {
> +	struct ioc *ioc;
> +	int ioc_num;
> +};
> +
> +static int setup_ibase_imask_callback(struct device *dev, void *data)
>  {
> -        struct klist_node * n = klist_next(i);
> -        return n ? container_of(n, struct device, knode_parent) : NULL;
> +	/* lba_set_iregs() is in drivers/parisc/lba_pci.c */
> +        extern void lba_set_iregs(struct parisc_device *, u32, u32);
> +	struct parisc_device *lba = to_parisc_device(dev);
> +	struct ibase_data_struct *ibd = data;
> +	int rope_num = (lba->hpa.start >> 13) & 0xf;
> +	if (rope_num >> 3 == ibd->ioc_num)
> +		lba_set_iregs(lba, ibd->ioc->ibase, ibd->ioc->imask);
> +	return 0;
>  }
>  
>  /* setup Mercury or Elroy IBASE/IMASK registers. */
>  static void 
>  setup_ibase_imask(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
>  {
> -	/* lba_set_iregs() is in drivers/parisc/lba_pci.c */
> -        extern void lba_set_iregs(struct parisc_device *, u32, u32);
> -	struct device *dev;
> -	struct klist_iter i;
> -
> -	klist_iter_init(&sba->dev.klist_children, &i);
> -	while ((dev = next_device(&i))) {
> -		struct parisc_device *lba = to_parisc_device(dev);
> -		int rope_num = (lba->hpa.start >> 13) & 0xf;
> -		if (rope_num >> 3 == ioc_num)
> -			lba_set_iregs(lba, ioc->ibase, ioc->imask);
> -	}
> -	klist_iter_exit(&i);
> +	struct ibase_data_struct ibase_data = {
> +		.ioc		= ioc,
> +		.ioc_num	= ioc_num,
> +	};
> +
> +	device_for_each_child(&sba->dev, &ibase_data,
> +			      setup_ibase_imask_callback);
>  }
>  
> +#ifdef SBA_AGP_SUPPORT
> +static int
> +sba_ioc_find_quicksilver(struct device *dev, void *data)
> +{
> +	int *agp_found = data;
> +	struct parisc_device *lba = to_parisc_device(dev);
> +
> +	if (IS_QUICKSILVER(lba))
> +		*agp_found = 1;
> +	return 0;
> +}
> +#endif
> +
>  static void
>  sba_ioc_init_pluto(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
>  {
> @@ -1332,9 +1350,6 @@ sba_ioc_init_pluto(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
>  	WRITE_REG(ioc->ibase | 31, ioc->ioc_hpa + IOC_PCOM);
>  
>  #ifdef SBA_AGP_SUPPORT
> -{
> -	struct klist_iter i;
> -	struct device *dev = NULL;
>  
>  	/*
>  	** If an AGP device is present, only use half of the IOV space
> @@ -1344,13 +1359,7 @@ sba_ioc_init_pluto(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
>  	** We program the next pdir index after we stop w/ a key for
>  	** the GART code to handshake on.
>  	*/
> -	klist_iter_init(&sba->dev.klist_children, &i);
> -	while ((dev = next_device(&i))) {
> -		struct parisc_device *lba = to_parisc_device(dev);
> -		if (IS_QUICKSILVER(lba))
> -			agp_found = 1;
> -	}
> -	klist_iter_exit(&i);
> +	device_for_each_child(&sba->dev, &agp_found, sba_ioc_find_quicksilver);
>  
>  	if (agp_found && sba_reserve_agpgart) {
>  		printk(KERN_INFO "%s: reserving %dMb of IOVA space for agpgart\n",
> 
> 

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From - Thu Nov 08 21:03:30 2018
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On Tue, Jan 13, 2009 at 09:54:15PM +0100, Helge Deller wrote:
> James Bottomley wrote:
> > commit 11c3b5c3e08f4d855cbef52883c266b9ab9df879
> > Author: Greg Kroah-Hartman <gregkh@suse.de>
> > Date:   Tue Dec 16 12:24:56 2008 -0800
> > 
> >     driver core: move klist_children into private structure
> > 
> > Broke our parisc build pretty badly because we touch the klists directly
> > in three cases (AGP, SBA and GSC).  Although GregKH will revert this
> > patch, there's no reason we should be using the iterators directly, we
> > can just move to the standard device_for_each_child() API.
> > 
> > Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
> 
> I just tested this patch on my 715/64 and c3000 with 2.6.29-rc1. Everything OK.
> 
> Tested-by: Helge Deller <deller@gmx.de>
> 

Thanks. Applied.
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On Tue, 2009-01-13 at 15:58 -0500, Kyle McMartin wrote:
> On Tue, Jan 13, 2009 at 09:54:15PM +0100, Helge Deller wrote:
> > James Bottomley wrote:
> > > commit 11c3b5c3e08f4d855cbef52883c266b9ab9df879
> > > Author: Greg Kroah-Hartman <gregkh@suse.de>
> > > Date:   Tue Dec 16 12:24:56 2008 -0800
> > > 
> > >     driver core: move klist_children into private structure
> > > 
> > > Broke our parisc build pretty badly because we touch the klists directly
> > > in three cases (AGP, SBA and GSC).  Although GregKH will revert this
> > > patch, there's no reason we should be using the iterators directly, we
> > > can just move to the standard device_for_each_child() API.
> > > 
> > > Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
> > 
> > I just tested this patch on my 715/64 and c3000 with 2.6.29-rc1. Everything OK.
> > 
> > Tested-by: Helge Deller <deller@gmx.de>
> > 
> 
> Thanks. Applied.

So you think I'd send an untested and uncompiled patch to the list?  ...
Hey, I strongly resemble that allegation!

The quicksilver AGP will need testing on a c8000 system, I think.

James


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On Tue, Jan 13, 2009 at 03:21:11PM -0600, James Bottomley wrote:
> So you think I'd send an untested and uncompiled patch to the list?  ...
> Hey, I strongly resemble that allegation!
> 
> The quicksilver AGP will need testing on a c8000 system, I think.
> 

I'm sure every user will be horribly upset if it breaks. Oh wait. It's
just me. ;-)
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] fix early_serial_setup() regression
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commit b430428a188e8a434325e251d0704af4b88b4711,
	"8250: Don't clobber spinlocks."
introduced a regression on the parisc architecture, which
broke the handover to the serial port at boottime.

early_serial_setup() was changed to only copy a subset of the
uart_port fields, and sadly the "type" and "line" fields
were forgotten and thus the serial port was not initialized
and could not be used for a handover.
This patch fixes this by copying the missing fields.

As this change to early_serial_setup() doesn't need an 
initialized spinlock in the uart_port struct any longer, we
can drop the spinlock initialization in the superio driver.

CC: David Daney <ddaney@caviumnetworks.com>
CC: Tomaso Paoletti <tpaoletti@caviumnetworks.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Alan Cox <alan@lxorguk.ukuu.org.uk>
CC: Linus Torvalds <torvalds@linux-foundation.org>
CC: Kyle McMartin <kyle@mcmartin.ca>
CC: linux-parisc@vger.kernel.org

Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 1889a63..0d934bf 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -2839,6 +2839,8 @@ int __init early_serial_setup(struct uart_port *port)
 	p->flags        = port->flags;
 	p->mapbase      = port->mapbase;
 	p->private_data = port->private_data;
+	p->type		= port->type;
+	p->line		= port->line;
 
 	set_io_from_upio(p);
 	if (port->serial_in)
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 1e93c83..4fa3bb2 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -405,7 +405,6 @@ static void __init superio_serial_init(void)
 	serial_port.type	= PORT_16550A;
 	serial_port.uartclk	= 115200*16;
 	serial_port.fifosize	= 16;
-	spin_lock_init(&serial_port.lock);
 
 	/* serial port #1 */
 	serial_port.iobase	= sio_dev.sp1_base;

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From - Thu Nov 08 21:03:30 2018
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Subject: Re: [PATCH] fix early_serial_setup() regression
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On Tue, Jan 13, 2009 at 10:51:07PM +0100, Helge Deller wrote:
> commit b430428a188e8a434325e251d0704af4b88b4711,
> 	"8250: Don't clobber spinlocks."
> introduced a regression on the parisc architecture, which
> broke the handover to the serial port at boottime.
> 
> early_serial_setup() was changed to only copy a subset of the
> uart_port fields, and sadly the "type" and "line" fields
> were forgotten and thus the serial port was not initialized
> and could not be used for a handover.
> This patch fixes this by copying the missing fields.
> 
> As this change to early_serial_setup() doesn't need an 
> initialized spinlock in the uart_port struct any longer, we
> can drop the spinlock initialization in the superio driver.
> 
> CC: David Daney <ddaney@caviumnetworks.com>
> CC: Tomaso Paoletti <tpaoletti@caviumnetworks.com>
> CC: Andrew Morton <akpm@linux-foundation.org>
> CC: Alan Cox <alan@lxorguk.ukuu.org.uk>
> CC: Linus Torvalds <torvalds@linux-foundation.org>
> CC: Kyle McMartin <kyle@mcmartin.ca>
> CC: linux-parisc@vger.kernel.org
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 

Acked-by: Kyle McMartin <kyle@mcmartin.ca>

Linus, please apply.
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [RFC, PATCH] parisc: add support for force_successful_syscall_return()
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Helge Deller wrote:
> I just stumbled over this commit from Paul Mackerras which added 
> support for force_successful_syscall_return() to compat_sys_time()
> and compat_sys_times():
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=e3d5a27d5862b6425d0879272e24abecf7245105
> 
> This made me wondering, if we couldn't add support for this as
> well for parisc. Important part is of course to keep backwards
> binary compatibility for userspace.
> 
> The following patch is just a draft, fully untested (not even
> compiled) and incomplete (e.g. initialization for r29 in kernel still
> needed), but it should give the idea that I have.
> My idea is to use e.g. r29 as error indicator, since r29 is even 
> marked as clobbered in old userspace syscall implementations.
> 
> So, my main question is:
> Do you think it makes sense to continue on this idea?
> My personal feeling is, that it is doable to implement
> force_successful_syscall_return() in a sane manner while keeping
> backwards ABI compatibility for parisc.
> 
> Feedback very much appreciated.

Sadly I didn't received any feedback. Anyway, maybe this just means the
idea wasn't that bad.

Here is another approach, which I personally like more.
Instead of using r29 as indication flag, this patch modifies the syscall
number itself (r20). If the highest bit is set, this indicates the
syscall was sucessful.
The benefit of r20 is, is that even the very oldest parisc kernels
returned the original syscall number in r20 and since we don't have that
many syscalls the highest bit was never touched. This means, on older
kernels the highest bit of r20 is always zero and we have a forwards- and
backwards compatible solution (e.g. new glibc on old kernel and vice versa).

Opinions?
(I'd post/add the necessary glibc patches of course as well if you think we should
add this feature to the parisc port...)

Helge

diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
index 302f68d..81d745f 100644
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -61,6 +61,20 @@ void user_enable_block_step(struct task_struct *task);
 #define instruction_pointer(regs)	((regs)->iaoq[0] & ~3)
 unsigned long profile_pc(struct pt_regs *);
 extern void show_regs(struct pt_regs *);
+
+  /*
+   * System call handlers that, upon successful completion, need to return a negative value
+   * should call force_successful_syscall_return() right before returning.  On architectures
+   * where the syscall convention provides for a separate error flag (e.g., alpha, ia64,
+   * ppc{,64}, sparc{,64}, possibly others), this macro can be used to ensure that the error
+   * flag will not get set.  On architectures which do not support a separate error flag,
+   * the macro is a no-op and the spurious error condition needs to be filtered out by some
+   * other means (e.g., in user-level, by passing an extra argument to the syscall handler,
+   * or something along those lines).
+   *
+   * On parisc, we set the highest bit in the syscall function call number (r20).
+   */
+# define force_successful_syscall_return()	(current->thread.regs.gr[20] |= 0x80000000)
 #endif
 
 #endif
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index ef26b00..62de2ee 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -852,14 +852,19 @@
    are treated specially. Although r19 is clobbered by the syscall
    we cannot say this because it would violate ABI, thus we say
    r4 is clobbered and use that register to save/restore r19
-   across the syscall. */
+   across the syscall.
+   On syscall entry r20 holds the syscall number. On syscall exit
+   the highest bit of r20 is set if the syscall was successful
+   even if the return value (r28) has a negative value (which
+   itself indicates an unsuccessful syscall). */
 
 #define K_CALL_CLOB_REGS "%r1", "%r2", K_USING_GR4 \
-	        	 "%r20", "%r29", "%r31"
+	        	 "%r29", "%r31"
 
 #undef K_INLINE_SYSCALL
 #define K_INLINE_SYSCALL(name, nr, args...)	({			\
 	long __sys_res;							\
+	register unsigned long __sys_syscall __asm__("r20");		\
 	{								\
 		register unsigned long __res __asm__("r28");		\
 		K_LOAD_ARGS_##nr(args)					\
@@ -867,15 +872,16 @@
 		__asm__ volatile(					\
 			K_STW_ASM_PIC					\
 			"	ble  0x100(%%sr2, %%r0)\n"		\
-			"	ldi %1, %%r20\n"			\
+			"	ldi %2, %1\n"				\
 			K_LDW_ASM_PIC					\
-			: "=r" (__res)					\
+			: "=r" (__res), "=r" (__sys_syscall)		\
 			: "i" (SYS_ify(name)) K_ASM_ARGS_##nr   	\
 			: "memory", K_CALL_CLOB_REGS K_CLOB_ARGS_##nr	\
 		);							\
 		__sys_res = (long)__res;				\
 	}								\
-	if ( (unsigned long)__sys_res >= (unsigned long)-4095 ){	\
+	if ( (__sys_syscall & 0x80000000) == 0 &&			\
+	     (unsigned long)__sys_res >= (unsigned long)-4095 ){	\
 		errno = -__sys_res;		        		\
 		__sys_res = -1;						\
 	}								\
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From - Thu Nov 08 21:03:30 2018
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From: dann frazier <dannf@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 0/9] rtc-parisc cleanup
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I recently submitted an rtc-efi driver having used rtc-parisc as a
template. I received several suggestions from Alessandro Zummo and
Andrew Morton that also apply to rtc-parisc. This series merges the
relevant changes back into the rtc-parisc driver.

dann frazier (9):
  Add a missing include for linux/rtc.h
  Remove redundant locking
  remove struct parisc_rtc
  Use rtc_valid_tm() in parisc_get_time
  Use platform_driver_probe
  declare rtc_parisc_dev as static
  remove unnecessary ret variable
  remove a couple unnecessary variables
  rename p pointer to rtc

 arch/parisc/kernel/time.c |    7 +----
 drivers/rtc/rtc-parisc.c  |   56 ++++++++++++---------------------------------
 2 files changed, 17 insertions(+), 46 deletions(-)

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From: dann frazier <dannf@hp.com>
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Subject: [PATCH 1/9] Add a missing include for linux/rtc.h
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Signed-off-by: dann frazier <dannf@hp.com>
---
 drivers/rtc/rtc-parisc.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
index c6bfa6f..319bb5d 100644
--- a/drivers/rtc/rtc-parisc.c
+++ b/drivers/rtc/rtc-parisc.c
@@ -7,6 +7,7 @@
 #include <linux/module.h>
 #include <linux/time.h>
 #include <linux/platform_device.h>
+#include <linux/rtc.h>
 
 #include <asm/rtc.h>
 
-- 
1.5.6.5

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From - Thu Nov 08 21:03:31 2018
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From: dann frazier <dannf@hp.com>
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Subject: [PATCH 5/9] Use platform_driver_probe
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This isn't a hotpluggable device, so call platform_driver_probe
directly in parisc_rtc_init

Signed-off-by: dann frazier <dannf@hp.com>
---
 drivers/rtc/rtc-parisc.c |   12 +++---------
 1 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
index 0477cc1..a2ca07a 100644
--- a/drivers/rtc/rtc-parisc.c
+++ b/drivers/rtc/rtc-parisc.c
@@ -40,19 +40,14 @@ static const struct rtc_class_ops parisc_rtc_ops = {
 	.set_time = parisc_set_time,
 };
 
-static int __devinit parisc_rtc_probe(struct platform_device *dev)
+static int __init parisc_rtc_probe(struct platform_device *dev)
 {
 	struct rtc_device *p;
 
-	p = kzalloc(sizeof (*p), GFP_KERNEL);
-	if (!p)
-		return -ENOMEM;
-
 	p = rtc_device_register("rtc-parisc", &dev->dev, &parisc_rtc_ops,
 				THIS_MODULE);
 	if (IS_ERR(p)) {
 		int err = PTR_ERR(p);
-		kfree(p);
 		return err;
 	}
 
@@ -61,12 +56,11 @@ static int __devinit parisc_rtc_probe(struct platform_device *dev)
 	return 0;
 }
 
-static int __devexit parisc_rtc_remove(struct platform_device *dev)
+static int __exit parisc_rtc_remove(struct platform_device *dev)
 {
 	struct rtc_device *p = platform_get_drvdata(dev);
 
 	rtc_device_unregister(p);
-	kfree(p);
 
 	return 0;
 }
@@ -82,7 +76,7 @@ static struct platform_driver parisc_rtc_driver = {
 
 static int __init parisc_rtc_init(void)
 {
-	return platform_driver_register(&parisc_rtc_driver);
+	return platform_driver_probe(&parisc_rtc_driver, parisc_rtc_probe);
 }
 
 static void __exit parisc_rtc_fini(void)
-- 
1.5.6.5

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From - Thu Nov 08 21:03:31 2018
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From: dann frazier <dannf@hp.com>
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Subject: [PATCH 2/9] Remove redundant locking
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The RTC subsystem proides ops locking, no need to implement our own

Signed-off-by: dann frazier <dannf@hp.com>
---
 drivers/rtc/rtc-parisc.c |   12 +-----------
 1 files changed, 1 insertions(+), 11 deletions(-)

diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
index 319bb5d..cb087ad 100644
--- a/drivers/rtc/rtc-parisc.c
+++ b/drivers/rtc/rtc-parisc.c
@@ -14,17 +14,13 @@
 /* as simple as can be, and no simpler. */
 struct parisc_rtc {
 	struct rtc_device *rtc;
-	spinlock_t lock;
 };
 
 static int parisc_get_time(struct device *dev, struct rtc_time *tm)
 {
-	struct parisc_rtc *p = dev_get_drvdata(dev);
-	unsigned long flags, ret;
+	unsigned long ret;
 
-	spin_lock_irqsave(&p->lock, flags);
 	ret = get_rtc_time(tm);
-	spin_unlock_irqrestore(&p->lock, flags);
 
 	if (ret & RTC_BATT_BAD)
 		return -EOPNOTSUPP;
@@ -34,13 +30,9 @@ static int parisc_get_time(struct device *dev, struct rtc_time *tm)
 
 static int parisc_set_time(struct device *dev, struct rtc_time *tm)
 {
-	struct parisc_rtc *p = dev_get_drvdata(dev);
-	unsigned long flags;
 	int ret;
 
-	spin_lock_irqsave(&p->lock, flags);
 	ret = set_rtc_time(tm);
-	spin_unlock_irqrestore(&p->lock, flags);
 
 	if (ret < 0)
 		return -EOPNOTSUPP;
@@ -61,8 +53,6 @@ static int __devinit parisc_rtc_probe(struct platform_device *dev)
 	if (!p)
 		return -ENOMEM;
 
-	spin_lock_init(&p->lock);

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Subject: [PATCH 6/9] declare rtc_parisc_dev as static
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Signed-off-by: dann frazier <dannf@hp.com>
---
 arch/parisc/kernel/time.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 9d46c43..a479d08 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -216,7 +216,7 @@ void __init start_cpu_itimer(void)
 	per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
-struct platform_device rtc_parisc_dev = {
+static struct platform_device rtc_parisc_dev = {
 	.name = "rtc-parisc",
 	.id = -1,
 };
-- 
1.5.6.5

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From: dann frazier <dannf@hp.com>
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parisc_rtc now only includes an rtc_device pointer, so let's
just use the rtc_device type directly.

Signed-off-by: dann frazier <dannf@hp.com>
---
 drivers/rtc/rtc-parisc.c |   19 +++++++------------
 1 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
index cb087ad..ee4e9a3 100644
--- a/drivers/rtc/rtc-parisc.c
+++ b/drivers/rtc/rtc-parisc.c
@@ -11,11 +11,6 @@
 
 #include <asm/rtc.h>
 
-/* as simple as can be, and no simpler. */
-struct parisc_rtc {
-	struct rtc_device *rtc;
-};
-
 static int parisc_get_time(struct device *dev, struct rtc_time *tm)
 {
 	unsigned long ret;
@@ -47,16 +42,16 @@ static const struct rtc_class_ops parisc_rtc_ops = {
 
 static int __devinit parisc_rtc_probe(struct platform_device *dev)
 {
-	struct parisc_rtc *p;
+	struct rtc_device *p;
 
 	p = kzalloc(sizeof (*p), GFP_KERNEL);
 	if (!p)
 		return -ENOMEM;
 
-	p->rtc = rtc_device_register("rtc-parisc", &dev->dev, &parisc_rtc_ops,
-					THIS_MODULE);
-	if (IS_ERR(p->rtc)) {
-		int err = PTR_ERR(p->rtc);
+	p = rtc_device_register("rtc-parisc", &dev->dev, &parisc_rtc_ops,
+				THIS_MODULE);
+	if (IS_ERR(p)) {
+		int err = PTR_ERR(p);
 		kfree(p);
 		return err;
 	}
@@ -68,9 +63,9 @@ static int __devinit parisc_rtc_probe(struct platform_device *dev)
 
 static int __devexit parisc_rtc_remove(struct platform_device *dev)
 {
-	struct parisc_rtc *p = platform_get_drvdata(dev);
+	struct rtc_device *p = platform_get_drvdata(dev);
 
-	rtc_device_unregister(p->rtc);
+	rtc_device_unregister(p);
 	kfree(p);
 
 	return 0;
-- 
1.5.6.5

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Subject: [PATCH 7/9] remove unnecessary ret variable
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Signed-off-by: dann frazier <dannf@hp.com>
---
 arch/parisc/kernel/time.c |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index a479d08..e75cae6 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -223,10 +223,7 @@ static struct platform_device rtc_parisc_dev = {
 
 static int __init rtc_init(void)
 {
-	int ret;

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Signed-off-by: dann frazier <dannf@hp.com>
---
 drivers/rtc/rtc-parisc.c |   12 +++---------
 1 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
index a2ca07a..c29e918 100644
--- a/drivers/rtc/rtc-parisc.c
+++ b/drivers/rtc/rtc-parisc.c
@@ -25,11 +25,7 @@ static int parisc_get_time(struct device *dev, struct rtc_time *tm)
 
 static int parisc_set_time(struct device *dev, struct rtc_time *tm)
 {
-	int ret;
-
-	ret = set_rtc_time(tm);

From - Thu Nov 08 21:03:31 2018
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From: dann frazier <dannf@hp.com>
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Subject: [PATCH 4/9] Use rtc_valid_tm() in parisc_get_time
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Use the return value of rtc_valid_tm() instead of just returning 0.

Signed-off-by: dann frazier <dannf@hp.com>
---
 drivers/rtc/rtc-parisc.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
index ee4e9a3..0477cc1 100644
--- a/drivers/rtc/rtc-parisc.c
+++ b/drivers/rtc/rtc-parisc.c
@@ -20,7 +20,7 @@ static int parisc_get_time(struct device *dev, struct rtc_time *tm)
 	if (ret & RTC_BATT_BAD)
 		return -EOPNOTSUPP;
 
-	return 0;
+	return rtc_valid_tm(tm);
 }
 
 static int parisc_set_time(struct device *dev, struct rtc_time *tm)
-- 
1.5.6.5

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From: dann frazier <dannf@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 9/9] rename p pointer to rtc
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Signed-off-by: dann frazier <dannf@hp.com>
---
 drivers/rtc/rtc-parisc.c |   16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
index c29e918..b966f56 100644
--- a/drivers/rtc/rtc-parisc.c
+++ b/drivers/rtc/rtc-parisc.c
@@ -38,23 +38,23 @@ static const struct rtc_class_ops parisc_rtc_ops = {
 
 static int __init parisc_rtc_probe(struct platform_device *dev)
 {
-	struct rtc_device *p;
+	struct rtc_device *rtc;
 
-	p = rtc_device_register("rtc-parisc", &dev->dev, &parisc_rtc_ops,
-				THIS_MODULE);
-	if (IS_ERR(p))
-		return PTR_ERR(p);
+	rtc = rtc_device_register("rtc-parisc", &dev->dev, &parisc_rtc_ops,
+				  THIS_MODULE);
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
 
-	platform_set_drvdata(dev, p);
+	platform_set_drvdata(dev, rtc);
 
 	return 0;
 }
 
 static int __exit parisc_rtc_remove(struct platform_device *dev)
 {
-	struct rtc_device *p = platform_get_drvdata(dev);
+	struct rtc_device *rtc = platform_get_drvdata(dev);
 
-	rtc_device_unregister(p);
+	rtc_device_unregister(rtc);
 
 	return 0;
 }
-- 
1.5.6.5

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From - Thu Nov 08 21:03:31 2018
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X-Mozilla-Keys:                                                                                 
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From: Alessandro Zummo <alessandro.zummo@towertech.it>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [rtc-linux] [PATCH 0/9] rtc-parisc cleanup
Date: Fri, 16 Jan 2009 01:06:33 +0100
Organization: Tower Technologies
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On Thu, 15 Jan 2009 16:46:47 -0700
dann frazier <dannf@hp.com> wrote:

> I recently submitted an rtc-efi driver having used rtc-parisc as a
> template. I received several suggestions from Alessandro Zummo and
> Andrew Morton that also apply to rtc-parisc. This series merges the
> relevant changes back into the rtc-parisc driver.

 Acked-by: Alessandro Zummo <a.zummo@towertech.it>

 on the whole series. Thank you Dann!

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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From - Thu Nov 08 21:03:31 2018
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From: Kyle McMartin <kyle@infradead.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [rtc-linux] [PATCH 0/9] rtc-parisc cleanup
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On Fri, Jan 16, 2009 at 01:06:33AM +0100, Alessandro Zummo wrote:
> On Thu, 15 Jan 2009 16:46:47 -0700
> dann frazier <dannf@hp.com> wrote:
> 
> > I recently submitted an rtc-efi driver having used rtc-parisc as a
> > template. I received several suggestions from Alessandro Zummo and
> > Andrew Morton that also apply to rtc-parisc. This series merges the
> > relevant changes back into the rtc-parisc driver.
> 
>  Acked-by: Alessandro Zummo <a.zummo@towertech.it>
> 
>  on the whole series. Thank you Dann!
> 

How does this jive with Paul Mundt's work that kills a bunch of these
rtc- drivers? (added Paul to CC)

These patches are cool with me. (I noticed you kept the same comment in
the ia64 time.c code. ;-)

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
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From - Thu Nov 08 21:03:31 2018
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From: Alessandro Zummo <alessandro.zummo@towertech.it>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [rtc-linux] [PATCH 0/9] rtc-parisc cleanup
Date: Fri, 16 Jan 2009 02:48:18 +0100
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On Thu, 15 Jan 2009 19:36:06 -0500
Kyle McMartin <kyle@infradead.org> wrote:

> How does this jive with Paul Mundt's work that kills a bunch of these
> rtc- drivers? (added Paul to CC)

 You mean rtc-firmware? I'm not comfortable in having another legacy
 bridge. archs need to move to the rtc subsystem as a whole.

 I saw a lot of improvements in this direction in the last few kernels,
 and I don't want to have something that will have to be removed in a couple
 of months.

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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On Fri, Jan 16, 2009 at 06:59:27AM +0100, Nick Piggin wrote:
> But there are quite possibly holes around here because not as much testing
> is done on CPUs with these kinds of caches. Eg. brd probably should be
> doing a flush_dcache_page in the rw == WRITE direction AFAIKS, so it picks
> up user aliases here.

Nick, if you wanted me to schlep a parisc machine to LCA for you, you
needed to ask me *before* I got as far as Vancouver ;-)

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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From - Thu Nov 08 21:03:31 2018
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From: Nick Piggin <npiggin@suse.de>
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Subject: Re: [PATCH] Remove needless flush_dcache_page call
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On Thu, Jan 15, 2009 at 11:01:24PM -0700, Matthew Wilcox wrote:
> On Fri, Jan 16, 2009 at 06:59:27AM +0100, Nick Piggin wrote:
> > But there are quite possibly holes around here because not as much testing
> > is done on CPUs with these kinds of caches. Eg. brd probably should be
> > doing a flush_dcache_page in the rw == WRITE direction AFAIKS, so it picks
> > up user aliases here.
> 
> Nick, if you wanted me to schlep a parisc machine to LCA for you, you
> needed to ask me *before* I got as far as Vancouver ;-)

;)

That actually might not be a bad idea if I had access to one of your crazy
systems. Would it really fit on an aeroplane or would you need a shipping
container? :)

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Subject: Re: [PATCH] Remove needless flush_dcache_page call
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On Fri, 2009-01-16 at 08:34 +0100, Nick Piggin wrote:
> On Thu, Jan 15, 2009 at 11:01:24PM -0700, Matthew Wilcox wrote:
> > On Fri, Jan 16, 2009 at 06:59:27AM +0100, Nick Piggin wrote:
> > > But there are quite possibly holes around here because not as muc=
h testing
> > > is done on CPUs with these kinds of caches. Eg. brd probably shou=
ld be
> > > doing a flush_dcache_page in the rw =3D=3D WRITE direction AFAIKS=
, so it picks
> > > up user aliases here.
> >=20
> > Nick, if you wanted me to schlep a parisc machine to LCA for you, y=
ou
> > needed to ask me *before* I got as far as Vancouver ;-)
>=20
> ;)
>=20
> That actually might not be a bad idea if I had access to one of your =
crazy
> systems. Would it really fit on an aeroplane or would you need a ship=
ping
> container? :)

They can be taken as checked luggage ... however, what Matthew means is
that by being in Vancouver he's already in transit to Australia.
However, we can give you access to the several remote test rings we
have, either Cupertino (send ssh key to Rick Jones <raj@netperf.org> or
Thiabut Var=C3=A8ne <varenet@parisc-linux.org>)

I thought we also had a wiki page listing all the machines, but I can't
find it.  They all use the HP Guardian Service Processor console, which
gives you remote console, power and all the other good things you need.

James


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From - Thu Nov 08 21:03:32 2018
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From: Kyle McMartin <kyle@infradead.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] Remove needless flush_dcache_page call
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Fri, Jan 16, 2009 at 09:28:21AM -0500, James Bottomley wrote:
> On Fri, 2009-01-16 at 08:34 +0100, Nick Piggin wrote:
> > On Thu, Jan 15, 2009 at 11:01:24PM -0700, Matthew Wilcox wrote:
> > > On Fri, Jan 16, 2009 at 06:59:27AM +0100, Nick Piggin wrote:
> > > > But there are quite possibly holes around here because not as m=
uch testing
> > > > is done on CPUs with these kinds of caches. Eg. brd probably sh=
ould be
> > > > doing a flush_dcache_page in the rw =3D=3D WRITE direction AFAI=
KS, so it picks
> > > > up user aliases here.
> > >=20
> > > Nick, if you wanted me to schlep a parisc machine to LCA for you,=
 you
> > > needed to ask me *before* I got as far as Vancouver ;-)
> >=20
> > ;)
> >=20
> > That actually might not be a bad idea if I had access to one of you=
r crazy
> > systems. Would it really fit on an aeroplane or would you need a sh=
ipping
> > container? :)
>=20
> They can be taken as checked luggage ... however, what Matthew means =
is
> that by being in Vancouver he's already in transit to Australia.
> However, we can give you access to the several remote test rings we
> have, either Cupertino (send ssh key to Rick Jones <raj@netperf.org> =
or
> Thiabut Var=E8ne <varenet@parisc-linux.org>)
>=20

I think Nick already has access to the gsyprf* systems, as I've seen hi=
m
logged in there before. ;-)
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [PATCH] Remove needless flush_dcache_page call
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Cc: Nick Piggin <npiggin@suse.de>, Matthew Wilcox <matthew@wil.cx>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Fri, Jan 16, 2009 at 09:28:21AM -0500, James Bottomley wrote:
...`
> They can be taken as checked luggage ... however, what Matthew means is
> that by being in Vancouver he's already in transit to Australia.
> However, we can give you access to the several remote test rings we
> have, either Cupertino (send ssh key to Rick Jones <raj@netperf.org> or
> Thiabut Var??ne <varenet@parisc-linux.org>)

Rick just gets me physical access when we have time to mess with the rack.

Kyle is correct that Nick still has a login to Cupertino ring though he
might need one of us to update his .ssh/authorized keys:
grundler@lp1000r:~$ finger nick
Login: npiggin                          Name: Nick Piggin
Directory: /home/npiggin                Shell: /bin/bash
Office Phone: +xx x xxxx xxxx
Last login Wed Aug  3 22:35 2005 (PDT) on pts/5 from 203-173-7-11.dyn.iinet.net.au
No mail.
No Plan.

IIRC, i gave him access to a "beefier" ia64 machine at the time (and those are
all still there too).

> I thought we also had a wiki page listing all the machines, but I can't
> find it.

    http://www.parisc-linux.org/cluster.html

I've intentionally left it unlinked from the main page.


> They all use the HP Guardian Service Processor console, which
> gives you remote console, power and all the other good things you need.

And most of the parisc machines are in a sorry state right now.
I'll update the web page with current state.

hth,
grant
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From: Andrew Morton <akpm@linux-foundation.org>
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Subject: Re: [rtc-linux] [PATCH 0/9] rtc-parisc cleanup
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On Fri, 16 Jan 2009 01:06:33 +0100
Alessandro Zummo <alessandro.zummo@towertech.it> wrote:

> On Thu, 15 Jan 2009 16:46:47 -0700
> dann frazier <dannf@hp.com> wrote:
> 
> > I recently submitted an rtc-efi driver having used rtc-parisc as a
> > template. I received several suggestions from Alessandro Zummo and
> > Andrew Morton that also apply to rtc-parisc. This series merges the
> > relevant changes back into the rtc-parisc driver.
> 
>  Acked-by: Alessandro Zummo <a.zummo@towertech.it>
> 
>  on the whole series. Thank you Dann!
> 

I don't have a copy of these patches anywhere.

Whoever cc'ed "lkml@vger.kernel.org", please slap thyself!
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From - Thu Nov 08 21:03:32 2018
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Subject: Re: [rtc-linux] [PATCH 0/9] rtc-parisc cleanup
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On Fri, 16 Jan 2009 12:47:30 -0800
Andrew Morton <akpm@linux-foundation.org> wrote:

> 
> I don't have a copy of these patches anywhere.
> 
> Whoever cc'ed "lkml@vger.kernel.org", please slap thyself!

 Here's the series in mbox format
 http://patchwork.ozlabs.org/user/bundle/74/mbox/


-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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On Sat, 17 Jan 2009 02:10:26 +0100 Alessandro Zummo <alessandro.zummo@towertech.it> wrote:

> On Fri, 16 Jan 2009 12:47:30 -0800
> Andrew Morton <akpm@linux-foundation.org> wrote:
> 
> > 
> > I don't have a copy of these patches anywhere.
> > 
> > Whoever cc'ed "lkml@vger.kernel.org", please slap thyself!
> 
>  Here's the series in mbox format
>  http://patchwork.ozlabs.org/user/bundle/74/mbox/
> 

<fiddles around for a while, eventually gets them>

From: dann frazier <dannf@hp.com>
Subject: [1/9] Add a missing include for linux/rtc.h
Date: Thu, 15 Jan 2009 13:46:48 -0000

That's a bit awkward - if I do a reply-to-all with review comments, it
goes privately.

Obviously I can manually fix that up in this case, but...
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Add braces around the macro arguments, else for example
"shl %r1, 5-3, %r2" would not expand to what you would assume.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/assembly.h b/arch/parisc/include/asm/assembly.h
index ffb2088..ab7cc37 100644
--- a/arch/parisc/include/asm/assembly.h
+++ b/arch/parisc/include/asm/assembly.h
@@ -129,27 +129,27 @@
 
 	/* Shift Left - note the r and t can NOT be the same! */
 	.macro shl r, sa, t
-	dep,z	\r, 31-\sa, 32-\sa, \t
+	dep,z	\r, 31-(\sa), 32-(\sa), \t
 	.endm
 
 	/* The PA 2.0 shift left */
 	.macro shlw r, sa, t
-	depw,z	\r, 31-\sa, 32-\sa, \t
+	depw,z	\r, 31-(\sa), 32-(\sa), \t
 	.endm
 
 	/* And the PA 2.0W shift left */
 	.macro shld r, sa, t
-	depd,z	\r, 63-\sa, 64-\sa, \t
+	depd,z	\r, 63-(\sa), 64-(\sa), \t
 	.endm
 
 	/* Shift Right - note the r and t can NOT be the same! */
 	.macro shr r, sa, t
-	extru \r, 31-\sa, 32-\sa, \t
+	extru \r, 31-(\sa), 32-(\sa), \t
 	.endm
 
 	/* pa20w version of shift right */
 	.macro shrd r, sa, t
-	extrd,u \r, 63-\sa, 64-\sa, \t
+	extrd,u \r, 63-(\sa), 64-(\sa), \t
 	.endm
 
 	/* load 32-bit 'value' into 'reg' compensating for the ldil
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index d1fa4ed..19d5749 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -368,7 +368,7 @@
 	 * abstractions for the macros */
 	.macro		EXTR	reg1,start,length,reg2
 #ifdef CONFIG_64BIT
-	extrd,u		\reg1,32+\start,\length,\reg2
+	extrd,u		\reg1,32+(\start),\length,\reg2
 #else
 	extrw,u		\reg1,\start,\length,\reg2
 #endif
@@ -376,7 +376,7 @@
 
 	.macro		DEP	reg1,start,length,reg2
 #ifdef CONFIG_64BIT
-	depd		\reg1,32+\start,\length,\reg2
+	depd		\reg1,32+(\start),\length,\reg2
 #else
 	depw		\reg1,\start,\length,\reg2
 #endif
@@ -384,7 +384,7 @@
 
 	.macro		DEPI	val,start,length,reg
 #ifdef CONFIG_64BIT
-	depdi		\val,32+\start,\length,\reg
+	depdi		\val,32+(\start),\length,\reg
 #else
 	depwi		\val,\start,\length,\reg
 #endif
--
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From - Thu Nov 08 21:03:32 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix usage of 32bit PTE page table entries on 32bit
 kernels
Date: Sun, 18 Jan 2009 19:16:16 +0100
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This patch fixes a long outstanding bug on 32bit parisc linux kernels
which prevented us from using 32bit PTE table entries (instead of 64bit
entries of which 32bit were unused).

The problem was caused by this assembler statement in the L2_ptep
macro in arch/parisc/kernel/entry.S:447:
	EXTR \va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index 
which expanded to 
	extrw,u r8,9,11,r1
and which has undefined behavior since the length value (11) extends 
beyond the leftmost bit (11-1 > 9).
Interestingly PA2.0 processors seem to don't care and just zero-extend
the value, while PA1.1 processors don't.

Fix this problem by detecting an address space overflow with ASM_BITS_PER_PGD
and adjusting it accordingly. To prevent such problems in the future, 
some compile time sanity checks in arch/parisc/mm/init.c were added.

Since the page table now only consumes half of it's old size, we can
use the freed memory to harmonize 32- and 64bit kernels and let both
map 16MB for the initial page table.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index c3941f0..7bc5125 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -36,16 +36,7 @@ void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
  */
 #define STRICT_MM_TYPECHECKS
 #ifdef STRICT_MM_TYPECHECKS
-typedef struct { unsigned long pte;
-#if !defined(CONFIG_64BIT)
-                 unsigned long future_flags;
- /* XXX: it's possible to remove future_flags and change BITS_PER_PTE_ENTRY
-	 to 2, but then strangely the identical 32bit kernel boots on a
-	 c3000(pa20), but not any longer on a 715(pa11).
-	 Still investigating... HelgeD.
-  */
-#endif
-} pte_t; /* either 32 or 64bit */
+typedef struct { unsigned long pte; } pte_t; /* either 32 or 64bit */
 
 /* NOTE: even on 64 bits, these entries are __u32 because we allocate
  * the pmd and pgd in ZONE_DMA (i.e. under 4GB) */
@@ -111,7 +102,7 @@ extern int npmem_ranges;
 #define BITS_PER_PMD_ENTRY	2
 #define BITS_PER_PGD_ENTRY	2
 #else
-#define BITS_PER_PTE_ENTRY	3
+#define BITS_PER_PTE_ENTRY	2
 #define BITS_PER_PMD_ENTRY	2
 #define BITS_PER_PGD_ENTRY	BITS_PER_PMD_ENTRY
 #endif
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 470a4b8..a27d2e2 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -50,11 +50,7 @@
 	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e))
 
 /* This is the size of the initially mapped kernel memory */
-#ifdef CONFIG_64BIT
 #define KERNEL_INITIAL_ORDER	24	/* 0 to 1<<24 = 16MB */
-#else
-#define KERNEL_INITIAL_ORDER	23	/* 0 to 1<<23 = 8MB */
-#endif
 #define KERNEL_INITIAL_SIZE	(1 << KERNEL_INITIAL_ORDER)
 
 #if defined(CONFIG_64BIT) && defined(CONFIG_PARISC_PAGE_SIZE_4KB)
@@ -91,16 +87,25 @@
 
 /* Definitions for 1st level */
 #define PGDIR_SHIFT	(PMD_SHIFT + BITS_PER_PMD)
+#if (PGDIR_SHIFT + PAGE_SHIFT + PGD_ORDER - BITS_PER_PGD_ENTRY) > BITS_PER_LONG
+#define BITS_PER_PGD	(BITS_PER_LONG - PGDIR_SHIFT)
+#else
 #define BITS_PER_PGD	(PAGE_SHIFT + PGD_ORDER - BITS_PER_PGD_ENTRY)
+#endif
 #define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
 #define PGDIR_MASK	(~(PGDIR_SIZE-1))
 #define PTRS_PER_PGD    (1UL << BITS_PER_PGD)
 #define USER_PTRS_PER_PGD       PTRS_PER_PGD
 
+#ifdef CONFIG_64BIT
 #define MAX_ADDRBITS	(PGDIR_SHIFT + BITS_PER_PGD)
 #define MAX_ADDRESS	(1UL << MAX_ADDRBITS)
-
 #define SPACEID_SHIFT	(MAX_ADDRBITS - 32)
+#else
+#define MAX_ADDRBITS	(BITS_PER_LONG)
+#define MAX_ADDRESS	(1UL << MAX_ADDRBITS)
+#define SPACEID_SHIFT	0
+#endif
 
 /* This calculates the number of initial pages we need for the initial
  * page tables */
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 7c155c2..88b52d8 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -458,6 +458,13 @@ void __init mem_init(void)
 {
 	int codesize, reservedpages, datasize, initsize;
 
+	/* Do sanity checks on page table constants */
+	BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
+	BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));
+	BUILD_BUG_ON(PGD_ENTRY_SIZE != sizeof(pgd_t));
+	BUILD_BUG_ON(PAGE_SHIFT + BITS_PER_PTE + BITS_PER_PMD + BITS_PER_PGD
+			> BITS_PER_LONG);
+
 	high_memory = __va((max_pfn << PAGE_SHIFT));
 
 #ifndef CONFIG_DISCONTIGMEM
--
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From - Thu Nov 08 21:03:32 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: use constants instead of numbers in assembly
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A few small fixups:
* _PAGE_SIZE_ENCODING_DEFAULT is wrong here, as one might assume that
  it's possible to define the page size that way. This is wrong. Use 0 instead.
* use constants instead of hardcoded numerical values in depi and extru
  while building the PFN out of the pte entry
* use SHRREG instead of extru (iitlba expects the PFN at bits {7..26})

Still wondering why we can use the same register (pte) as extru source
and target register, but it seems to work on PA1.1 and PA2.0...

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index d1fa4ed..19d5749 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -563,8 +563,8 @@
 
 	/* Get rid of prot bits and convert to page addr for iitlba */
 
-	depi		_PAGE_SIZE_ENCODING_DEFAULT,31,ASM_PFN_PTE_SHIFT,\pte
-	extru		\pte,24,25,\pte
+	depi		0,31,ASM_PFN_PTE_SHIFT,\pte
+	SHRREG		\pte,(ASM_PFN_PTE_SHIFT-(31-26)),\pte
 	.endm
 
 	/* This is for ILP32 PA2.0 only.  The TLB insertion needs
@@ -1337,8 +1337,8 @@ nadtlb_check_flush_11:
 
 	/* Get rid of prot bits and convert to page addr for idtlba */
 
-	depi		0,31,12,pte
-	extru		pte,24,25,pte
+	depi		0,31,ASM_PFN_PTE_SHIFT,pte
+	SHRREG		pte,(ASM_PFN_PTE_SHIFT-(31-26)),pte
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
--
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From: Arnd Bergmann <arnd@arndb.de>
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Subject: Re: Confusion in usr/include/asm-generic/fcntl.h
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On Wednesday 21 January 2009, David Miller wrote:
> From: Jaswinder Singh Rajput <jaswinder@kernel.org>
> Date: Wed, 21 Jan 2009 05:34:17 +0530
> 
> > usr/include/asm-generic/fcntl.h is giving 2 'make headers_check' warnings:
> >  usr/include/asm-generic/fcntl.h:127: leaks CONFIG_64BIT to userspace where it is not valid
> >  usr/include/asm-generic/fcntl.h:149: leaks CONFIG_64BIT to userspace where it is not valid
> > 
> > usr/include/asm-generic/fcntl.h:
> ...
> > #ifndef CONFIG_64BIT will always be true for userspace. So what is the use of #ifndef CONFIG_64BIT ?
> 
> Good catch.
> 
> This file needs to test for 64-bit'ness using some non-CONFIG_*
> test.  And the standard built-in CPP macros which can be used
> to check for that are different on every platform.

I think we should simply define a macro for use in the kernel, e.g. in
<asm/types.h>. There already is a BITS_PER_LONG macro in there, maybe
we can add an exported __BITS_PER_LONG there that checks for the right
macro on each architecture.

On parisc, there is a major confusion in this area, at some point, all
checks for __LP64__ got replaced with CONFIG_64BIT there. While I have
not understood what the problem with __LP64__ was, the check for
CONFIG_64BIT on parisc user space looks very wrong.

	Arnd <><
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From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 21 Jan 2009 01:24:25 +0100

> I think we should simply define a macro for use in the kernel, e.g. in
> <asm/types.h>. There already is a BITS_PER_LONG macro in there, maybe
> we can add an exported __BITS_PER_LONG there that checks for the right
> macro on each architecture.

That might work.

> On parisc, there is a major confusion in this area, at some point, all
> checks for __LP64__ got replaced with CONFIG_64BIT there. While I have
> not understood what the problem with __LP64__ was, the check for
> CONFIG_64BIT on parisc user space looks very wrong.

Yep.
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Confusion in usr/include/asm-generic/fcntl.h
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From: Arnd Bergmann <arnd@arndb.de>
>> On parisc, there is a major confusion in this area, at some point, all
>> checks for __LP64__ got replaced with CONFIG_64BIT there. While I have
>> not understood what the problem with __LP64__ was, the check for
>> CONFIG_64BIT on parisc user space looks very wrong.

I think the parisc mess is my fault. I once replaced the __LP64__ by 
CONFIG_64BIT and forgot that some files are exported to userspace.
I'll clean that up and send patches.

Thanks for catching this!

Helge
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From: Arnd Bergmann <arnd@arndb.de>
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On Wednesday 21 January 2009, Helge Deller wrote:
> From: Arnd Bergmann <arnd@arndb.de>
> >> On parisc, there is a major confusion in this area, at some point, all
> >> checks for __LP64__ got replaced with CONFIG_64BIT there. While I have
> >> not understood what the problem with __LP64__ was, the check for
> >> CONFIG_64BIT on parisc user space looks very wrong.
> 
> I think the parisc mess is my fault. I once replaced the __LP64__ by 
> CONFIG_64BIT and forgot that some files are exported to userspace.
> I'll clean that up and send patches.

I have a patch set that introduces a lot more asm-generic headers where
I also need a generic way to check for this. The approach I chose
here was to check "#if __BITS_PER_LONG == 64" for anything that is
exported to user space. Maybe you can #define this in asm/types.h
and use this check in the parisc headers as well.

	Arnd <><
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From: Sam Ravnborg <sam@ravnborg.org>
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Subject: Re: Confusion in usr/include/asm-generic/fcntl.h
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On Wed, Jan 21, 2009 at 09:24:22AM +0100, Arnd Bergmann wrote:
> On Wednesday 21 January 2009, Helge Deller wrote:
> > From: Arnd Bergmann <arnd@arndb.de>
> > >> On parisc, there is a major confusion in this area, at some point, all
> > >> checks for __LP64__ got replaced with CONFIG_64BIT there. While I have
> > >> not understood what the problem with __LP64__ was, the check for
> > >> CONFIG_64BIT on parisc user space looks very wrong.
> > 
> > I think the parisc mess is my fault. I once replaced the __LP64__ by 
> > CONFIG_64BIT and forgot that some files are exported to userspace.
> > I'll clean that up and send patches.
> 
> I have a patch set that introduces a lot more asm-generic headers where
> I also need a generic way to check for this. The approach I chose
> here was to check "#if __BITS_PER_LONG == 64" for anything that is
> exported to user space. Maybe you can #define this in asm/types.h
> and use this check in the parisc headers as well.

Could we add a new symbol for this?
We know we are going to use this in several places so a simpler variant
would be more readable.

Something like:

#ifdef __64BIT
...
#endif


When we define __64BIT we would use the  __BITS_PER_LONG == 64 check.

	Sam
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From - Thu Nov 08 21:03:33 2018
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On Wednesday 21 January 2009, Sam Ravnborg wrote:
> Could we add a new symbol for this?
> We know we are going to use this in several places so a simpler varia=
nt
> would be more readable.
>=20
> Something like:
>=20
> #ifdef __64BIT
> ...
> #endif
>=20
> When we define __64BIT we would use the =A0__BITS_PER_LONG =3D=3D 64 =
check.

I would prefer using the __BITS_PER_LONG =3D=3D 64 check directly, beca=
use
it gives you a warning when __BITS_PER_LONG is undefined, whereas the
#ifdef check gets easily fooled by include order problems. Note that
this is not a problem in the kernel for CONFIG_* symbols which are
always defined before the first #include.

	Arnd <><
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From - Thu Nov 08 21:03:33 2018
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From: Kyle McMartin <kyle@infradead.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: Confusion in usr/include/asm-generic/fcntl.h
Date: Wed, 21 Jan 2009 09:29:37 -0500
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Cc: Sam Ravnborg <sam@ravnborg.org>, Helge Deller <deller@gmx.de>,
	David Miller <davem@davemloft.net>, jaswinder@kernel.org,
	mingo@elte.hu, x86@kernel.org, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, Kyle McMartin <kyle@mcmartin.ca>
To: Arnd Bergmann <arnd@arndb.de>
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On Wed, Jan 21, 2009 at 01:13:16PM +0100, Arnd Bergmann wrote:
> On Wednesday 21 January 2009, Sam Ravnborg wrote:
> > Could we add a new symbol for this?
> > We know we are going to use this in several places so a simpler var=
iant
> > would be more readable.
> >=20
> > Something like:
> >=20
> > #ifdef __64BIT
> > ...
> > #endif
> >=20
> > When we define __64BIT we would use the =A0__BITS_PER_LONG =3D=3D 6=
4 check.
>=20
> I would prefer using the __BITS_PER_LONG =3D=3D 64 check directly, be=
cause
> it gives you a warning when __BITS_PER_LONG is undefined, whereas the
> #ifdef check gets easily fooled by include order problems. Note that
> this is not a problem in the kernel for CONFIG_* symbols which are
> always defined before the first #include.
>=20

This is cool with me Arnd. Rock on. :)

cheers, Kyle
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Dunno why it's broken, but this stuff is in git. Let me know if I missed
anything.

kyle@hera ~/git/parisc-2.6 $ git log
commit ac2565d69d7ef73b4e446f63759358e8a9996385
Author: Helge Deller <deller@gmx.de>
Date:   Sun Jan 18 19:30:18 2009 +0100

    parisc: use constants instead of numbers in assembly
    
    A few small fixups:
    * _PAGE_SIZE_ENCODING_DEFAULT is wrong here, as one might assume
    * that
      it's possible to define the page size that way. This is wrong. Use
0 inste
    * use constants instead of hardcoded numerical values in depi and
    * extru
      while building the PFN out of the pte entry
    * use SHRREG instead of extru (iitlba expects the PFN at bits
    * {7..26})
    
    Still wondering why we can use the same register (pte) as extru
source
    and target register, but it seems to work on PA1.1 and PA2.0...
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit cc1829ddc1c34b17ad8b56b6e4df134450a8c25a
Author: Helge Deller <deller@gmx.de>
Date:   Sun Jan 18 19:16:16 2009 +0100

    parisc: fix usage of 32bit PTE page table entries on 32bit kernels
    
    This patch fixes a long outstanding bug on 32bit parisc linux
kernels
    which prevented us from using 32bit PTE table entries (instead of
64bit
    entries of which 32bit were unused).
    
    The problem was caused by this assembler statement in the L2_ptep
    macro in arch/parisc/kernel/entry.S:447:
        EXTR \va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
    which expanded to
        extrw,u r8,9,11,r1
    and which has undefined behavior since the length value (11) extends
    beyond the leftmost bit (11-1 > 9).
    Interestingly PA2.0 processors seem to don't care and just
zero-extend
    the value, while PA1.1 processors don't.
    
    Fix this problem by detecting an address space overflow with
ASM_BITS_PER_PG
    and adjusting it accordingly. To prevent such problems in the
future,
    some compile time sanity checks in arch/parisc/mm/init.c were added.
    
    Since the page table now only consumes half of it's old size, we can
    use the freed memory to harmonize 32- and 64bit kernels and let both
    map 16MB for the initial page table.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 65aa3ffe7473eb9855b4d77d0e0198abe0892e7a
Author: Helge Deller <deller@gmx.de>
Date:   Sun Jan 18 18:13:53 2009 +0100

    parisc: add braces around arguments in assembler macros
    
    Add braces around the macro arguments, else for example
    "shl %r1, 5-3, %r2" would not expand to what you would assume.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit f152532beb6b32f10b480fc5552da9f3cf1acae2
Author: Helge Deller <deller@gmx.de>
Date:   Tue Jan 13 21:14:51 2009 +0100

    parisc: fix dev_printk() compile warnings for accessing a device
struct
    
    Fix compile warnings:
    drivers/scsi/zalon.c: In function `zalon_probe':
    drivers/scsi/zalon.c:140: warning: passing arg 1 of
`dev_driver_string' from
    drivers/scsi/zalon.c:140: warning: passing arg 1 of `dev_name' from
incompat
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 63371efefffc85af3f2535dc26827e720aa7103f
Author: Helge Deller <deller@gmx.de>
Date:   Tue Jan 13 20:54:25 2009 +0100

    parisc: remove unused local out_putf label
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit b81bf50a191ec8715beab1ac12a5ec8221693c53
Author: Helge Deller <deller@gmx.de>
Date:   Tue Jan 13 20:52:46 2009 +0100

    parisc: fix `struct pt_regs' declared inside parameter list warning
    
    Fix those compile warnings:
    uaccess.h:244: warning: `struct pt_regs' declared inside parameter
list
    uaccess.h:244: warning: its scope is only this definition or
declaration, wh
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 86377b69e291408e0e596cd1e8ca806e4f9d7790
Author: Helge Deller <deller@gmx.de>
Date:   Tue Jan 13 20:51:29 2009 +0100

    parisc: fix section mismatch warnings
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit a130bf34da4b64d7b289e2358530ef5d4ab27efd
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date:   Fri Jan 9 18:57:06 2009 -0600

    parisc: remove klist iterators
    
    commit 11c3b5c3e08f4d855cbef52883c266b9ab9df879
    Author: Greg Kroah-Hartman <gregkh@suse.de>
    Date:   Tue Dec 16 12:24:56 2008 -0800
    
        driver core: move klist_children into private structure
    
    Broke our parisc build pretty badly because we touch the klists
directly
    in three cases (AGP, SBA and GSC).  Although GregKH will revert this
    patch, there's no reason we should be using the iterators directly,
we
    can just move to the standard device_for_each_child() API.
    
    Signed-off-by: James Bottomley
<James.Bottomley@HansenPartnership.com>
    Tested-by: Helge Deller <deller@gmx.de>
    Tested-by: Kyle McMartin <kyle@mcmartin.ca>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 1890e15142aa1318bb9775c4ea021aa022c506dc
Author: Helge Deller <deller@gmx.de>
Date:   Tue Jan 6 14:23:13 2009 +0100

    parisc: blink loadavg LEDs on Oops
    
    - blink loadavg LEDs only (not all LEDs) twice a second on Oops
    - cancel_rearming_delayed_workqueue() is obsolete,
      use cancel_delayed_work_sync() instead
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit dca7293875ccb012e521c02bc95463063ac0a693
Author: Helge Deller <deller@gmx.de>
Date:   Tue Jan 6 12:57:01 2009 +0100

    parisc: BUG_ON() cleanup
    
    - convert a few "if (xx) BUG();" to BUG_ON(xx)
    - remove a few printk()s, as we get a backtrace with BUG_ON() anyway
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 1de9e8e70f5acc441550ca75433563d91b269bbe
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Fri Jan 16 12:43:00 2009 -0800

    Linux 2.6.29-rc2

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Arnd Bergmann wrote:
> 
> I would prefer using the __BITS_PER_LONG == 64 check directly, because
> it gives you a warning when __BITS_PER_LONG is undefined, whereas the
> #ifdef check gets easily fooled by include order problems. Note that
> this is not a problem in the kernel for CONFIG_* symbols which are
> always defined before the first #include.
> 

I fully agree with this.  It actually *is* a problem for CONFIG_*
symbols too, since people typo them all the time.

	-hpa
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On Wed, Jan 21, 2009 at 01:13:16PM +0100, Arnd Bergmann wrote:
> On Wednesday 21 January 2009, Sam Ravnborg wrote:
> > Could we add a new symbol for this?
> > We know we are going to use this in several places so a simpler var=
iant
> > would be more readable.
> >=20
> > Something like:
> >=20
> > #ifdef __64BIT
> > ...
> > #endif
> >=20
> > When we define __64BIT we would use the =A0__BITS_PER_LONG =3D=3D 6=
4 check.
>=20
> I would prefer using the __BITS_PER_LONG =3D=3D 64 check directly, be=
cause
> it gives you a warning when __BITS_PER_LONG is undefined, whereas the
> #ifdef check gets easily fooled by include order problems. Note that
> this is not a problem in the kernel for CONFIG_* symbols which are
> always defined before the first #include.

It gives the warning only if you add -Wundef which IIRC is not default
with -Wall. And using the "__BITS_PER_LONG =3D=3D 64" the risk of gitti=
ng
the expression wrong is much higher than the simpler variant where
you only write:

    __64BIT

But I have no strong feelings for it.

	Sam
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Subject: Re: Confusion in usr/include/asm-generic/fcntl.h
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	mingo@elte.hu, x86@kernel.org, linux-kernel@vger.kernel.org,
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To: Sam Ravnborg <sam@ravnborg.org>
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Sam Ravnborg wrote:
> 
> It gives the warning only if you add -Wundef which IIRC is not default
> with -Wall. And using the "__BITS_PER_LONG == 64" the risk of gitting
> the expression wrong is much higher than the simpler variant where
> you only write:
> 
>     __64BIT
> 
> But I have no strong feelings for it.
> 

It's not the default, but it would be nice if we could start using it.

	-hpa
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From - Thu Nov 08 21:03:33 2018
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Kyle McMartin wrote:
> Dunno why it's broken, but this stuff is in git. 

What is broken? Booting? Build?

> Let me know if I missed anything.

- The maintainers update patch

- Still needs discussion/patches: Userspace headers cleanup in arch/parisc/include/asm/

Didn't checked yet:
- http://patchwork.cabal.ca/patch/83/ ?
- the rtc patches from dann ?

Helge
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On Wed, Jan 21, 2009 at 01:24:25AM +0100, Arnd Bergmann wrote:
...
> > This file needs to test for 64-bit'ness using some non-CONFIG_*
> > test.  And the standard built-in CPP macros which can be used
> > to check for that are different on every platform.
> 
> I think we should simply define a macro for use in the kernel, e.g. in
> <asm/types.h>. There already is a BITS_PER_LONG macro in there, maybe
> we can add an exported __BITS_PER_LONG there that checks for the right
> macro on each architecture.

I'm pretty sure __LP64__ is the standard compiler defined macro
for 64-bit builds on most architectures.

> On parisc, there is a major confusion in this area, at some point, all
> checks for __LP64__ got replaced with CONFIG_64BIT there. While I have
> not understood what the problem with __LP64__ was,

IIRC, the problem with __LP64__ is it wasn't visible to the CONFIG
tool chains and dependencies. I believe that's fixed now and parisc
could deprecate use of CONFIG_64BIT if there is a strong preference
for __LP64__.

> the check for
> CONFIG_64BIT on parisc user space looks very wrong.

This shouldn't be exported to user space. Is that what you meant?
PA-RISC user space can currently only be 32-bit anyway.
So a 64-bit kernel will have to take that into consideration.

thanks,
grant
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From - Thu Nov 08 21:03:34 2018
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Subject: Re: Confusion in usr/include/asm-generic/fcntl.h
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> > CONFIG_64BIT on parisc user space looks very wrong.
> 
> This shouldn't be exported to user space. Is that what you meant?

This does get exported to user space as applications sometimes need
to know whether they are running under a 32 or 64-bit kernel.  See
config.guess.  However, it certainly would be wrong to use this
to make decisions about user space.

Dave
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John David Anglin wrote:
>>> CONFIG_64BIT on parisc user space looks very wrong.
>> This shouldn't be exported to user space. Is that what you meant?
> 
> This does get exported to user space as applications sometimes need
> to know whether they are running under a 32 or 64-bit kernel.  See
> config.guess.  However, it certainly would be wrong to use this
> to make decisions about user space.
> 

CONFIG_* macros are not (or at least should not) be exported to 
userspace!  Userspace should not make compile-time decisions based on 
kernel configuration -- a runtime property!

	-hpa

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From - Thu Nov 08 21:03:34 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: Confusion in usr/include/asm-generic/fcntl.h
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To: hpa@zytor.com (H. Peter Anvin)
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> CONFIG_* macros are not (or at least should not) be exported to 
> userspace!  Userspace should not make compile-time decisions based on 
> kernel configuration -- a runtime property!

Unfortunately, this decision was made years ago...

dave@mx3210:~$ uname -m
parisc64
dave@hiauly6:~/gnu/gcc-4.4/gcc$ uname -m
parisc

The only significant difference between the above two machines is that
mx3210 is running a 64-bit kernel and hiauly6 is running a 32-bit kernel.
Both are PA 2.0 machines.  Some PA 2.0 machines can only run 64-bit
kernels.  The workstations can typically run both.

The issue for user space is that 64-bit kernels can support both 32 and
64-bit applications.  This affects build scripts and make files.  The
default machine selected by config.guess for parisc64 is hppa64.
Separate applications provide 32-bit and 64-bit support in binutils, 
cc and gdb.  hppa64 selects 64-bit support when build these applications.
So, if you want a 32-bit compiler, you need to explicitly override
the default chosen by config.guess.

Historically, this occurred on parisc because the runtime differences
(on HP-UX) between 32 and 64-bit code are large, making it very difficult
to combine 32 and 64-bit support without changing a significant number
of macro defines affecting many targets.  There is still a lot of code
in gcc which depends on whether a given macro is defined or not.

In theory, it should be possible to use a single application to
generate 32 and 64-bit code on parisc for linux.  Jeff Law, who did
the 64-bit gcc implementation for parisc, said it wasn't worth the
effort to merge the two.  So far, the work to integrate the two
hasn't been done.

The situation on hpux is even more confusing, but in every case
config.guess effectively returns the assembler level that the kernel
was built with (hppa1.0, hppa1.1, hppa2.0n, hppa2.0w or hppa64) when
doing native builds.  It doesn't provide the processor family, or
specific hardware model of the build system.

In summary, config.guess has always made decisions based on kernel
configuration as this affects what can be supported in user space.
I'm sure that there are many other applications that depend on
kernel configuration in both direct and subtle ways.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:34 2018
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From: "H. Peter Anvin" <hpa@zytor.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: Confusion in usr/include/asm-generic/fcntl.h
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John David Anglin wrote:
> 
> Unfortunately, this decision was made years ago...
> 
> dave@mx3210:~$ uname -m
> parisc64
> dave@hiauly6:~/gnu/gcc-4.4/gcc$ uname -m
> parisc
> 
> The only significant difference between the above two machines is that
> mx3210 is running a 64-bit kernel and hiauly6 is running a 32-bit kernel.
> Both are PA 2.0 machines.  Some PA 2.0 machines can only run 64-bit
> kernels.  The workstations can typically run both.
> 
> The issue for user space is that 64-bit kernels can support both 32 and
> 64-bit applications.  This affects build scripts and make files.  The
> default machine selected by config.guess for parisc64 is hppa64.
> Separate applications provide 32-bit and 64-bit support in binutils, 
> cc and gdb.  hppa64 selects 64-bit support when build these applications.
> So, if you want a 32-bit compiler, you need to explicitly override
> the default chosen by config.guess.
> 

That's fine... the whole point is that it should not depend on kernel
CONFIG_* macros.  Depending on uname is a user-space decision, no issue
there.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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On Wed, Jan 21, 2009 at 3:31 PM, Kyle McMartin <kyle@infradead.org> wrote:

> commit 1890e15142aa1318bb9775c4ea021aa022c506dc
> Author: Helge Deller <deller@gmx.de>
> Date:   Tue Jan 6 14:23:13 2009 +0100
>
>    parisc: blink loadavg LEDs on Oops
>

I thought we agreed this was a bad idea and that this patch should be
left aside?
Helge?

T-Bone

-- 
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http://www.parisc-linux.org/~varenet/
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On Thu, Jan 22, 2009 at 12:23:33PM +0100, Thibaut VARENE wrote:
> On Wed, Jan 21, 2009 at 3:31 PM, Kyle McMartin <kyle@infradead.org> wrote:
> 
> > commit 1890e15142aa1318bb9775c4ea021aa022c506dc
> > Author: Helge Deller <deller@gmx.de>
> > Date:   Tue Jan 6 14:23:13 2009 +0100
> >
> >    parisc: blink loadavg LEDs on Oops
> >
> 
> I thought we agreed this was a bad idea and that this patch should be
> left aside?
> Helge?
> 

Well, if you signed up for a patchwork account you could have flagged it
as such. :P

cheers, Kyle
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On Thu, Jan 22, 2009 at 6:43 PM, Kyle McMartin <kyle@infradead.org> wrote:
> On Thu, Jan 22, 2009 at 12:23:33PM +0100, Thibaut VARENE wrote:
>> On Wed, Jan 21, 2009 at 3:31 PM, Kyle McMartin <kyle@infradead.org> wrote:
>>
>> > commit 1890e15142aa1318bb9775c4ea021aa022c506dc
>> > Author: Helge Deller <deller@gmx.de>
>> > Date:   Tue Jan 6 14:23:13 2009 +0100
>> >
>> >    parisc: blink loadavg LEDs on Oops
>> >
>>
>> I thought we agreed this was a bad idea and that this patch should be
>> left aside?
>> Helge?
>>
>
> Well, if you signed up for a patchwork account you could have flagged it
> as such. :P

Dude don't blame me, I tried like 2 or 3 weeks ago to do exactly that,
and never received the confirmation email...

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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To: Helge Deller <deller@gmx.de>
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On Wed, Jan 21, 2009 at 07:53:11PM +0100, Helge Deller wrote:
> Kyle McMartin wrote:
> > Dunno why it's broken, but this stuff is in git. 
> 
> What is broken? Booting? Build?
> 
> > Let me know if I missed anything.
> 
> - The maintainers update patch
> 
> - Still needs discussion/patches: Userspace headers cleanup in arch/parisc/include/asm/
> 
> Didn't checked yet:
> - http://patchwork.cabal.ca/patch/83/ ?

I think that went in last go 'round.

> - the rtc patches from dann ?
> 

I figured Alessandro would take them, ok, I'll put them on a branch.

> Helge
> 
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From - Thu Nov 08 21:03:34 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: timer_interrupt delayed messages 2.6.27-rc7
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On Tue, Sep 30, 2008 at 11:59:53PM -0600, Grant Grundler wrote:
> Hey,
> I tested two 2.6.27-rc7 kernels on an a500.
> The first had CONFIG_HZ=250 and was getting the following messages:
> timer_interrupt(CPU 1): delayed! cycles 100001A37 rem 8C237  next/now 4A954C3C1C/4B954C5653
> timer_interrupt(CPU 0): delayed! cycles 100000E07 rem 8B607  next/now 4A95B8EAF5/4B95B8F8FC
> timer_interrupt(CPU 1): delayed! cycles 1000009CB rem 8B1CB  next/now 4B956525DC/4C95652FA7
> timer_interrupt(CPU 0): delayed! cycles 100000931 rem 8B131  next/now 4B95D1D4B5/4C95D1DDE6
> ...
> 
> Since 8B131+931 looks remarkably close to 550 Mhz/1000,

I'm looking at this again and wondering if I made a thinko.
(8B131-931) gives the same answer for each: 0x8A800 (567296)

> I decided to try a CONFIG_HZ=1000 kernel and now get the following:
> timer_interrupt(CPU 1): delayed! cycles 100001C74 rem 6004  next/now 2BFD187FEA/2CFD189C5E
> timer_interrupt(CPU 1): delayed! cycles 100000E8A rem 521A  next/now 2CFD20A0CA/2DFD20AF54
> timer_interrupt(CPU 1): delayed! cycles 100000A33 rem 4DC3  next/now 2DFD28C1AA/2EFD28CBDD
> timer_interrupt(CPU 1): delayed! cycles 100000C87 rem 5017  next/now 2EFD30E28A/2FFD30EF11

Same here:
    5017-C87=0x4390
    4DC3-A33=0x4390

> ...
> 
> Note that CPU0 no longer reports this error.
> I suspect we have two bugs in play here.
> 
> The first one might be we have some basic bug in how the itimer is
> getting programmed.  I suspect it's always off by 32-bits because IIRC
> we can only program the lower 32-bits of CR16. I suspect the comparison
> code gets the 32-bit rollover wrong. Is that enough clues for someone to
> spot this?

I've looked for this but don't see it. The next/now values above don't
support that theory since they are not within 0x8A800 (first example
at 250Hz) of 4G.

Secondly, at 1000Hz, I'm not seeing the relationship of 0x4390
to any plausible cycles per tick value (440-750Mhz). I should see
something between 0x6B6C0 (440Mhz) and 0xB71B0 (750Mhz).

I'm wondering if this a side effect of some other bug.

thanks,
grant


> The second might be 1000HZ (or 1024?) is still hardcoded in our source
> code someplace.  I can't otherwise explain the "rem" values dropped more
> than 4x while the "cycles" value is roughly the same (2^32 + about 0x1000).
> Also CPU0 stopped reporting this error. Initialization for CPU0 is different
> and those might be useful clues too.
> 
> thanks,
> grant
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From - Thu Nov 08 21:03:34 2018
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From: Kay Sievers <kay.sievers@vrfy.org>
Newsgroups: gmane.linux.ports.parisc
Subject: parisc: struct device - replace bus_id with dev_name(),
 dev_set_name()
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From: Kay Sievers <kay.sievers@vrfy.org>
Subject: parisc: struct device - replace bus_id with dev_name(), dev_set_name()

Cc: kyle@mcmartin.ca
Cc: matthew@wil.cx
Cc: linux-parisc@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
---
 drivers/parisc/dino.c |   11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -479,7 +479,7 @@ dino_card_setup(struct pci_bus *bus, voi
 	res = &dino_dev->hba.lmmio_space;
 	res->flags = IORESOURCE_MEM;
 	size = scnprintf(name, sizeof(name), "Dino LMMIO (%s)", 
-			 bus->bridge->bus_id);
+			 dev_name(bus->bridge));
 	res->name = kmalloc(size+1, GFP_KERNEL);
 	if(res->name)
 		strcpy((char *)res->name, name);
@@ -493,7 +493,7 @@ dino_card_setup(struct pci_bus *bus, voi
 		struct list_head *ln, *tmp_ln;
 
 		printk(KERN_ERR "Dino: cannot attach bus %s\n",
-		       bus->bridge->bus_id);
+		       dev_name(bus->bridge));
 		/* kill the bus, we can't do anything with it */
 		list_for_each_safe(ln, tmp_ln, &bus->devices) {
 			struct pci_dev *dev = pci_dev_b(ln);
@@ -611,12 +611,12 @@ dino_fixup_bus(struct pci_bus *bus)
 			}
 					
 			DBG("DEBUG %s assigning %d [0x%lx,0x%lx]\n",
-			    bus->self->dev.bus_id, i,
+			    dev_name(&bus->self->dev), i,
 			    bus->self->resource[i].start,
 			    bus->self->resource[i].end);
 			pci_assign_resource(bus->self, i);
 			DBG("DEBUG %s after assign %d [0x%lx,0x%lx]\n",
-			    bus->self->dev.bus_id, i,
+			    dev_name(&bus->self->dev), i,
 			    bus->self->resource[i].start,
 			    bus->self->resource[i].end);
 		}
@@ -1026,7 +1026,8 @@ static int __init dino_probe(struct pari
 		dino_current_bus = bus->subordinate + 1;
 		pci_bus_assign_resources(bus);
 	} else {
-		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (probably duplicate bus number %d)\n", dev->dev.bus_id, dino_current_bus);
+		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (probably duplicate bus number %d)\n",
+		       dev_name(&dev->dev), dino_current_bus);
 		/* increment the bus number in case of duplicates */
 		dino_current_bus++;
 	}

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On Sun, Jan 25, 2009 at 11:53:16PM +0100, Kay Sievers wrote:
> From: Kay Sievers <kay.sievers@vrfy.org>
> Subject: parisc: struct device - replace bus_id with dev_name(), dev_set_name()

In general, no objection. Just one nit below.

Otherwise, please add:
Reviewed-by: Grant Grundler <grundler@parisc-linux.org>

> 
> Cc: kyle@mcmartin.ca
> Cc: matthew@wil.cx
> Cc: linux-parisc@vger.kernel.org
> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
> ---
>  drivers/parisc/dino.c |   11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
> 
> --- a/drivers/parisc/dino.c
> +++ b/drivers/parisc/dino.c
> @@ -479,7 +479,7 @@ dino_card_setup(struct pci_bus *bus, voi
>  	res = &dino_dev->hba.lmmio_space;
>  	res->flags = IORESOURCE_MEM;
>  	size = scnprintf(name, sizeof(name), "Dino LMMIO (%s)", 
> -			 bus->bridge->bus_id);
> +			 dev_name(bus->bridge));
>  	res->name = kmalloc(size+1, GFP_KERNEL);
>  	if(res->name)
>  		strcpy((char *)res->name, name);
> @@ -493,7 +493,7 @@ dino_card_setup(struct pci_bus *bus, voi
>  		struct list_head *ln, *tmp_ln;
>  
>  		printk(KERN_ERR "Dino: cannot attach bus %s\n",
> -		       bus->bridge->bus_id);
> +		       dev_name(bus->bridge));

I think the "cannot attach bus" string needs to be changed to
"cannot attach dev" or whatever dev_name() is supposed to represent.
While the code in include/linux/device.h is using "bus_id",
the comments say:

static inline const char *dev_name(const struct device *dev)
{
        /* will be changed into kobject_name(&dev->kobj) in the near future */
        return dev->bus_id;
}

And that could mean anything.
The rest look fine.

thanks,
grant

>  		/* kill the bus, we can't do anything with it */
>  		list_for_each_safe(ln, tmp_ln, &bus->devices) {
>  			struct pci_dev *dev = pci_dev_b(ln);
> @@ -611,12 +611,12 @@ dino_fixup_bus(struct pci_bus *bus)
>  			}
>  					
>  			DBG("DEBUG %s assigning %d [0x%lx,0x%lx]\n",
> -			    bus->self->dev.bus_id, i,
> +			    dev_name(&bus->self->dev), i,
>  			    bus->self->resource[i].start,
>  			    bus->self->resource[i].end);
>  			pci_assign_resource(bus->self, i);
>  			DBG("DEBUG %s after assign %d [0x%lx,0x%lx]\n",
> -			    bus->self->dev.bus_id, i,
> +			    dev_name(&bus->self->dev), i,
>  			    bus->self->resource[i].start,
>  			    bus->self->resource[i].end);
>  		}
> @@ -1026,7 +1026,8 @@ static int __init dino_probe(struct pari
>  		dino_current_bus = bus->subordinate + 1;
>  		pci_bus_assign_resources(bus);
>  	} else {
> -		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (probably duplicate bus number %d)\n", dev->dev.bus_id, dino_current_bus);
> +		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (probably duplicate bus number %d)\n",
> +		       dev_name(&dev->dev), dino_current_bus);
>  		/* increment the bus number in case of duplicates */
>  		dino_current_bus++;
>  	}
> 
> --
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From - Thu Nov 08 21:03:34 2018
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Subject: Re: parisc: struct device - replace bus_id with dev_name(), 
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On Mon, Jan 26, 2009 at 05:55, Grant Grundler <grundler@parisc-linux.org> wrote:
> On Sun, Jan 25, 2009 at 11:53:16PM +0100, Kay Sievers wrote:
>> From: Kay Sievers <kay.sievers@vrfy.org>
>> Subject: parisc: struct device - replace bus_id with dev_name(), dev_set_name()
>
> In general, no objection. Just one nit below.
>
> Otherwise, please add:
> Reviewed-by: Grant Grundler <grundler@parisc-linux.org>

>>               printk(KERN_ERR "Dino: cannot attach bus %s\n",
>> -                    bus->bridge->bus_id);
>> +                    dev_name(bus->bridge));
>
> I think the "cannot attach bus" string needs to be changed to
> "cannot attach dev" or whatever dev_name() is supposed to represent.

The code probably uses a "struct device" to represent a "bus", which
sounds fine because the "devices" are more "objects" than "devices"
sometimes.

> While the code in include/linux/device.h is using "bus_id",
> the comments say:
>
> static inline const char *dev_name(const struct device *dev)
> {
>        /* will be changed into kobject_name(&dev->kobj) in the near future */
>        return dev->bus_id;
> }

It's the "name" of a "device", the comment has already gone away with
the final patch in the bus_id series.

Thanks,
Kay
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From - Thu Nov 08 21:03:34 2018
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Subject: Re: parisc: struct device - replace bus_id with dev_name(),
	dev_set_name()
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On Sun, Jan 25, 2009 at 09:55:23PM -0700, Grant Grundler wrote:
> On Sun, Jan 25, 2009 at 11:53:16PM +0100, Kay Sievers wrote:
> > From: Kay Sievers <kay.sievers@vrfy.org>
> > Subject: parisc: struct device - replace bus_id with dev_name(), dev_set_name()
> 
> In general, no objection. Just one nit below.
> 
> Otherwise, please add:
> Reviewed-by: Grant Grundler <grundler@parisc-linux.org>

Added, thanks.

greg k-h
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/assembly.h b/arch/parisc/include/asm/assembly.h
index ab7cc37..89fb400 100644
--- a/arch/parisc/include/asm/assembly.h
+++ b/arch/parisc/include/asm/assembly.h
@@ -79,6 +79,7 @@
 
 #include <asm/asm-offsets.h>
 #include <asm/page.h>
+#include <asm/types.h>
 
 #include <asm/asmregs.h>
 
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From: Greg KH <greg@kroah.com>
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Subject: [PATCH] parisc: don't touch driver core internals
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From: Greg Kroah-Hartman <gregkh@suse.de>

It isn't wise to use the struct device klists on their own, as their
implementation has a tendancy to change at times.  Instead, use the
functions created for iterating over lists of devices, as it handles all
of the dirty klist work for you automatically.

This is needed as the driver core is changing how klists are stored in
struct device in the near future.

Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---

I can keep this in my driver-core tree, where is it required in order
for parisc to build properly.  Or you all can take this now, in your
tree, whatever is easier for you.

 drivers/char/agp/parisc-agp.c |   24 ++++++---------
 drivers/parisc/gsc.c          |   40 +++++++++++++++-----------
 drivers/parisc/sba_iommu.c    |   64 ++++++++++++++++++++++++------------------
 3 files changed, 71 insertions(+), 57 deletions(-)

--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -16,7 +16,6 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/init.h>
-#include <linux/klist.h>
 #include <linux/agp_backend.h>
 #include <linux/log2.h>
 
@@ -359,9 +358,12 @@ fail:
 	return error;
 }
 
-static struct device *next_device(struct klist_iter *i) {
-	struct klist_node * n = klist_next(i);
-	return n ? container_of(n, struct device, knode_parent) : NULL;
+static int match_quicksilver(struct device *dev, void *data)
+{
+	struct parisc_device *padev = to_parisc_device(dev);
+
+	if (IS_QUICKSILVER(padev))
+		return 1;
 }
 
 static int
@@ -372,8 +374,7 @@ parisc_agp_init(void)
 	int err = -1;
 	struct parisc_device *sba = NULL, *lba = NULL;
 	struct lba_device *lbadev = NULL;
-	struct device *dev = NULL;
-	struct klist_iter i;
+	struct device *dev;
 
 	if (!sba_list)
 		goto out;
@@ -386,14 +387,9 @@ parisc_agp_init(void)
 	}
 
 	/* Now search our Pluto for our precious AGP device... */
-	klist_iter_init(&sba->dev.klist_children, &i);
-	while ((dev = next_device(&i))) {
-		struct parisc_device *padev = to_parisc_device(dev);
-		if (IS_QUICKSILVER(padev))
-			lba = padev;
-	}
-	klist_iter_exit(&i);
-
+	dev = device_find_child(&sba->dev, NULL, match_quicksilver);
+	if (dev)
+		lba = to_parisc_device(dev);
 	if (!lba) {
 		printk(KERN_INFO DRVPFX "No AGP devices found.\n");
 		goto out;
--- a/drivers/parisc/gsc.c
+++ b/drivers/parisc/gsc.c
@@ -186,29 +186,37 @@ void gsc_asic_assign_irq(struct gsc_asic
 	*irqp = irq;
 }
 
-static struct device *next_device(struct klist_iter *i)
+struct fixup_irq_struct {
+	void *ctrl;
+	void (*choose_irq)(struct parisc_device *, void *);
+}
+
+static int fixup_irq(struct device *dev, void *data)
 {
-	struct klist_node * n = klist_next(i);
-	return n ? container_of(n, struct device, knode_parent) : NULL;
+	struct fixup_irq_struct *fixup = data;
+	void (*choose_irq)(struct parisc_device *, void *) = fixup->choose_irq;
+	void *ctrl = fixup->ctrl;
+	struct parisc_device *padev = to_parisc_device(dev);
+
+	/* work-around for 715/64 and others which have parent
+	   at path [5] and children at path [5/0/x] */
+	if (padev->id.hw_type == HPHW_FAULTY) {
+		gsc_fixup_irqs(padev, ctrl, choose_irq);
+		return -1;
+	}
+	choose_irq(padev, ctrl);
+	return 0;
 }
 
 void gsc_fixup_irqs(struct parisc_device *parent, void *ctrl,
 			void (*choose_irq)(struct parisc_device *, void *))
 {
-	struct device *dev;
-	struct klist_iter i;
+	struct fixup_irq_struct fixup;
 
-	klist_iter_init(&parent->dev.klist_children, &i);
-	while ((dev = next_device(&i))) {
-		struct parisc_device *padev = to_parisc_device(dev);
-
-		/* work-around for 715/64 and others which have parent 
-		   at path [5] and children at path [5/0/x] */
-		if (padev->id.hw_type == HPHW_FAULTY)
-			return gsc_fixup_irqs(padev, ctrl, choose_irq);
-		choose_irq(padev, ctrl);
-	}
-	klist_iter_exit(&i);
+	fixup.ctrl = ctrl;
+	fixup.choose_irq = choose_irq;
+
+	device_for_each_child(&parent->dev, &fixup, fixup_irq);
 }
 
 int gsc_common_setup(struct parisc_device *parent, struct gsc_asic *gsc_asic)
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1206,30 +1206,46 @@ sba_alloc_pdir(unsigned int pdir_size)
 	return (void *) pdir_base;
 }
 
-static struct device *next_device(struct klist_iter *i)
+struct setup_ibase_imask {
+	struct ioc *ioc;
+	int ioc_num;
+}
+
+static int setup_ibase_imask_dev(struct device *dev, void *data)
 {
-        struct klist_node * n = klist_next(i);
-        return n ? container_of(n, struct device, knode_parent) : NULL;
+	/* lba_set_iregs() is in drivers/parisc/lba_pci.c */
+        extern void lba_set_iregs(struct parisc_device *, u32, u32);
+	struct setup_ibase_imask *imask = data;
+	struct ioc *ioc = data->ioc;
+	struct parisc_device *lba = to_parisc_device(dev);
+	int rope_num = (lba->hpa.start >> 13) & 0xf;
+
+	if (rope_num >> 3 == data->ioc_num)
+		lba_set_iregs(lba, ioc->ibase, ioc->imask);
+	return 0;
 }
 
 /* setup Mercury or Elroy IBASE/IMASK registers. */
 static void 
 setup_ibase_imask(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
 {
-	/* lba_set_iregs() is in drivers/parisc/lba_pci.c */
-        extern void lba_set_iregs(struct parisc_device *, u32, u32);
-	struct device *dev;
-	struct klist_iter i;
+	struct setup_ibase_imask *data;
 
-	klist_iter_init(&sba->dev.klist_children, &i);
-	while ((dev = next_device(&i))) {
-		struct parisc_device *lba = to_parisc_device(dev);
-		int rope_num = (lba->hpa.start >> 13) & 0xf;
-		if (rope_num >> 3 == ioc_num)
-			lba_set_iregs(lba, ioc->ibase, ioc->imask);
-	}
-	klist_iter_exit(&i);
+	data.ioc = ioc;
+	data.ioc_num = ioc_num;
+
+	device_for_each_child(&sba->dev, &data, setup_ibase_imask_dev);
+}
+
+#ifdef SBA_AGP_SUPPORT
+static int match_quicksilver(struct device *dev, void *data)
+{
+	struct parisc_device *padev = to_parisc_device(dev);
+
+	if (IS_QUICKSILVER(padev))
+		return 1;
 }
+#endif
 
 static void
 sba_ioc_init_pluto(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
@@ -1237,9 +1253,7 @@ sba_ioc_init_pluto(struct parisc_device 
 	u32 iova_space_mask;
 	u32 iova_space_size;
 	int iov_order, tcnfg;
-#ifdef SBA_AGP_SUPPORT
-	int agp_found = 0;
-#endif
+
 	/*
 	** Firmware programs the base and size of a "safe IOVA space"
 	** (one that doesn't overlap memory or LMMIO space) in the
@@ -1333,8 +1347,8 @@ sba_ioc_init_pluto(struct parisc_device 
 
 #ifdef SBA_AGP_SUPPORT
 {
-	struct klist_iter i;
-	struct device *dev = NULL;
+	struct device *dev;
+	int agp_found = 0;
 
 	/*
 	** If an AGP device is present, only use half of the IOV space
@@ -1344,13 +1358,9 @@ sba_ioc_init_pluto(struct parisc_device 
 	** We program the next pdir index after we stop w/ a key for
 	** the GART code to handshake on.
 	*/
-	klist_iter_init(&sba->dev.klist_children, &i);
-	while ((dev = next_device(&i))) {
-		struct parisc_device *lba = to_parisc_device(dev);
-		if (IS_QUICKSILVER(lba))
-			agp_found = 1;
-	}
-	klist_iter_exit(&i);
+	dev = device_find_child(&sba->dev, NULL, match_quicksilver);
+	if (dev)
+		agp_found = 1;
 
 	if (agp_found && sba_reserve_agpgart) {
 		printk(KERN_INFO "%s: reserving %dMb of IOVA space for agpgart\n",
--
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From - Thu Nov 08 21:03:35 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: Confusion in usr/include/asm-generic/fcntl.h
Date: Tue, 27 Jan 2009 23:35:33 +0100
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Cc: David Miller <davem@davemloft.net>, jaswinder@kernel.org,
	mingo@elte.hu, x86@kernel.org, linux-kernel@vger.kernel.org
To: Arnd Bergmann <arnd@arndb.de>, linux-parisc@vger.kernel.org,
	Kyle McMartin <kyle@mcmartin.ca>,
	Grant Grundler <grundler@parisc-linux.org>
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Arnd Bergmann wrote:
> On Wednesday 21 January 2009, Helge Deller wrote:
>> From: Arnd Bergmann <arnd@arndb.de>
>>>> On parisc, there is a major confusion in this area, at some point, all
>>>> checks for __LP64__ got replaced with CONFIG_64BIT there. While I have
>>>> not understood what the problem with __LP64__ was, the check for
>>>> CONFIG_64BIT on parisc user space looks very wrong.
>> I think the parisc mess is my fault. I once replaced the __LP64__ by 
>> CONFIG_64BIT and forgot that some files are exported to userspace.
>> I'll clean that up and send patches.
> 
> I have a patch set that introduces a lot more asm-generic headers where
> I also need a generic way to check for this. The approach I chose
> here was to check "#if __BITS_PER_LONG == 64" for anything that is
> exported to user space. Maybe you can #define this in asm/types.h
> and use this check in the parisc headers as well.

As per your suggestion, the patch below fixes the problem that the 
CONFIG_64BIT kernel config option is exported to userspace on parisc by mistake.
Tested on 32- and 64-bit parisc kernel builds and with "make headers_check".

arch/parisc/include/asm/:
 assembly.h    |   20 +++++++++++---------
 msgbuf.h      |    8 +++++---
 pdc.h         |   12 +++++-------
 posix_types.h |    4 +++-
 sembuf.h      |    4 ++--
 shmbuf.h      |   13 +++++++------
 signal.h      |    2 +-
 swab.h        |    2 +-
 types.h       |   10 ++++++++++
 9 files changed, 45 insertions(+), 30 deletions(-)

--------------------
parisc: do not export kernel config options to userspace in asm/ header files

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/assembly.h b/arch/parisc/include/asm/assembly.h
index ab7cc37..b950843 100644
--- a/arch/parisc/include/asm/assembly.h
+++ b/arch/parisc/include/asm/assembly.h
@@ -21,9 +21,11 @@
 #ifndef _PARISC_ASSEMBLY_H
 #define _PARISC_ASSEMBLY_H
 
+#include <asm/types.h>
+
 #define CALLEE_FLOAT_FRAME_SIZE	80
 
-#ifdef CONFIG_64BIT
+#if __BITS_PER_LONG == 64
 #define LDREG	ldd
 #define STREG	std
 #define LDREGX  ldd,s
@@ -37,7 +39,7 @@
 #define FRAME_SIZE	128
 #define CALLEE_REG_FRAME_SIZE	144
 #define ASM_ULONG_INSN	.dword
-#else	/* CONFIG_64BIT */
+#else	/* __BITS_PER_LONG == 64 */
 #define LDREG	ldw
 #define STREG	stw
 #define LDREGX  ldwx,s
@@ -58,7 +60,7 @@
 #ifdef CONFIG_PA20
 #define LDCW		ldcw,co
 #define BL		b,l
-# ifdef CONFIG_64BIT
+# if __BITS_PER_LONG == 64
 #  define LEVEL		2.0w
 # else
 #  define LEVEL		2.0
@@ -71,7 +73,7 @@
 
 #ifdef __ASSEMBLY__
 
-#ifdef CONFIG_64BIT
+#if __BITS_PER_LONG == 64
 /* the 64-bit pa gnu assembler unfortunately defaults to .level 1.1 or 2.0 so
  * work around that for now... */
 	.level 2.0w
@@ -162,7 +164,7 @@
 	.endm
 
 	.macro loadgp
-#ifdef CONFIG_64BIT
+#if __BITS_PER_LONG == 64
 	ldil		L%__gp, %r27
 	ldo		R%__gp(%r27), %r27
 #else
@@ -340,7 +342,7 @@
 	fldd,mb	-8(%r30),   %fr12
 	.endm
 
-#ifdef CONFIG_64BIT
+#if __BITS_PER_LONG == 64
 	.macro	callee_save
 	std,ma	  %r3,	 CALLEE_REG_FRAME_SIZE(%r30)
 	mfctl	  %cr27, %r3
@@ -383,7 +385,7 @@
 	ldd,mb	-CALLEE_REG_FRAME_SIZE(%r30),    %r3
 	.endm
 
-#else /* ! CONFIG_64BIT */
+#else /* ! __BITS_PER_LONG == 64 */
 
 	.macro	callee_save
 	stw,ma	 %r3,	CALLEE_REG_FRAME_SIZE(%r30)
@@ -426,7 +428,7 @@
 	mtctl	%r3, %cr27
 	ldw,mb	-CALLEE_REG_FRAME_SIZE(%r30),   %r3
 	.endm
-#endif /* ! CONFIG_64BIT */
+#endif /* ! __BITS_PER_LONG == 64 */
 
 	.macro	save_specials	regs
 
@@ -447,7 +449,7 @@
 	mtctl	 %r0,	%cr18
 	SAVE_CR  (%cr18, PT_IAOQ1(\regs))
 
-#ifdef CONFIG_64BIT
+#if __BITS_PER_LONG == 64
 	/* cr11 (sar) is a funny one.  5 bits on PA1.1 and 6 bit on PA2.0
 	 * For PA2.0 mtsar or mtctl always write 6 bits, but mfctl only
 	 * reads 5 bits.  Use mfctl,w to read all six bits.  Otherwise
diff --git a/arch/parisc/include/asm/msgbuf.h b/arch/parisc/include/asm/msgbuf.h
index fe88f26..a4520f5 100644
--- a/arch/parisc/include/asm/msgbuf.h
+++ b/arch/parisc/include/asm/msgbuf.h
@@ -1,6 +1,8 @@
 #ifndef _PARISC_MSGBUF_H
 #define _PARISC_MSGBUF_H
 
+#include <linux/types.h>
+
 /* 
  * The msqid64_ds structure for parisc architecture, copied from sparc.
  * Note extra padding because this structure is passed back and forth
@@ -13,15 +15,15 @@
 
 struct msqid64_ds {
 	struct ipc64_perm msg_perm;
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG == 32
 	unsigned int   __pad1;
 #endif
 	__kernel_time_t msg_stime;	/* last msgsnd time */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG == 32
 	unsigned int   __pad2;
 #endif
 	__kernel_time_t msg_rtime;	/* last msgrcv time */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG == 32
 	unsigned int   __pad3;
 #endif
 	__kernel_time_t msg_ctime;	/* last change time */
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index c584b00..f118764 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -336,10 +336,11 @@
 #define NUM_PDC_RESULT	32
 
 #if !defined(__ASSEMBLY__)
-#ifdef __KERNEL__
 
 #include <linux/types.h>
 
+#ifdef __KERNEL__
+
 extern int pdc_type;
 
 /* Values for pdc_type */
@@ -374,7 +375,7 @@ struct pdc_model {		/* for PDC_MODEL */
 
 struct pdc_cache_cf {		/* for PDC_CACHE  (I/D-caches) */
     unsigned long
-#ifdef CONFIG_64BIT
+#if __BITS_PER_LONG == 64
 		cc_padW:32,
 #endif
 		cc_alias: 4,	/* alias boundaries for virtual addresses   */
@@ -390,7 +391,7 @@ struct pdc_cache_cf {		/* for PDC_CACHE  (I/D-caches) */
 
 struct pdc_tlb_cf {		/* for PDC_CACHE (I/D-TLB's) */
     unsigned long tc_pad0:12,	/* reserved */
-#ifdef CONFIG_64BIT
+#if __BITS_PER_LONG == 64
 		tc_padW:32,
 #endif
 		tc_sh	: 2,	/* 0 = separate I/D-TLB, else shared I/D-TLB */
@@ -478,7 +479,6 @@ struct pdc_btlb_info {	/* PDC_BLOCK_TLB, return of PDC_BTLB_INFO */
 
 #endif /* !CONFIG_PA20 */
 
-#ifdef CONFIG_64BIT
 struct pdc_memory_table_raddr { /* PDC_MEM/PDC_MEM_TABLE (return info) */
 	unsigned long entries_returned;
 	unsigned long entries_total;
@@ -489,7 +489,6 @@ struct pdc_memory_table {       /* PDC_MEM/PDC_MEM_TABLE (arguments) */
 	unsigned int  pages;
 	unsigned int  reserved;
 };
-#endif /* CONFIG_64BIT */
 
 struct pdc_system_map_mod_info { /* PDC_SYSTEM_MAP/FIND_MODULE */
 	unsigned long mod_addr;
@@ -636,10 +635,9 @@ int pdc_get_initiator(struct hardware_path *, struct pdc_initiator *);
 int pdc_tod_read(struct pdc_tod *tod);
 int pdc_tod_set(unsigned long sec, unsigned long usec);
 
-#ifdef CONFIG_64BIT
+/* pdc_mem_mem_table - only available on 64bit */
 int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr,
 		struct pdc_memory_table *tbl, unsigned long entries);
-#endif
 
 void set_firmware_width(void);
 void set_firmware_width_unlocked(void);
diff --git a/arch/parisc/include/asm/posix_types.h b/arch/parisc/include/asm/posix_types.h
index 00da29a..6946cdc 100644
--- a/arch/parisc/include/asm/posix_types.h
+++ b/arch/parisc/include/asm/posix_types.h
@@ -1,6 +1,8 @@
 #ifndef __ARCH_PARISC_POSIX_TYPES_H
 #define __ARCH_PARISC_POSIX_TYPES_H
 
+#include <asm/types.h>
+
 /*
  * This file is generally used by user-level software, so you need to
  * be a little careful about namespace pollution etc.  Also, we cannot
@@ -20,7 +22,7 @@ typedef int			__kernel_timer_t;
 typedef int			__kernel_clockid_t;
 typedef int			__kernel_daddr_t;
 /* Note these change from narrow to wide kernels */
-#ifdef CONFIG_64BIT
+#if __BITS_PER_LONG == 64
 typedef unsigned long		__kernel_size_t;
 typedef long			__kernel_ssize_t;
 typedef long			__kernel_ptrdiff_t;
diff --git a/arch/parisc/include/asm/sembuf.h b/arch/parisc/include/asm/sembuf.h
index 1e59ffd..d27e904 100644
--- a/arch/parisc/include/asm/sembuf.h
+++ b/arch/parisc/include/asm/sembuf.h
@@ -13,11 +13,11 @@
 
 struct semid64_ds {
 	struct ipc64_perm sem_perm;		/* permissions .. see ipc.h */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG == 32
 	unsigned int	__pad1;
 #endif
 	__kernel_time_t	sem_otime;		/* last semop time */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG == 32
 	unsigned int	__pad2;
 #endif
 	__kernel_time_t	sem_ctime;		/* last change time */
diff --git a/arch/parisc/include/asm/shmbuf.h b/arch/parisc/include/asm/shmbuf.h
index 0a3eada..d133bf4 100644
--- a/arch/parisc/include/asm/shmbuf.h
+++ b/arch/parisc/include/asm/shmbuf.h
@@ -1,6 +1,8 @@
 #ifndef _PARISC_SHMBUF_H
 #define _PARISC_SHMBUF_H
 
+#include <linux/types.h>
+
 /* 
  * The shmid64_ds structure for parisc architecture.
  * Note extra padding because this structure is passed back and forth
@@ -13,19 +15,19 @@
 
 struct shmid64_ds {
 	struct ipc64_perm	shm_perm;	/* operation perms */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG == 32
 	unsigned int		__pad1;
 #endif
 	__kernel_time_t		shm_atime;	/* last attach time */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG == 32
 	unsigned int		__pad2;
 #endif
 	__kernel_time_t		shm_dtime;	/* last detach time */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG == 32
 	unsigned int		__pad3;
 #endif
 	__kernel_time_t		shm_ctime;	/* last change time */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG == 32
 	unsigned int		__pad4;
 #endif
 	size_t			shm_segsz;	/* size of segment (bytes) */
@@ -36,13 +38,12 @@ struct shmid64_ds {
 	unsigned int		__unused2;
 };
 
-#ifdef CONFIG_64BIT
+
 /* The 'unsigned int' (formerly 'unsigned long') data types below will
  * ensure that a 32-bit app calling shmctl(*,IPC_INFO,*) will work on
  * a wide kernel, but if some of these values are meant to contain pointers
  * they may need to be 'long long' instead. -PB XXX FIXME
  */
-#endif
 struct shminfo64 {
 	unsigned int	shmmax;
 	unsigned int	shmmin;
diff --git a/arch/parisc/include/asm/signal.h b/arch/parisc/include/asm/signal.h
index c203563..3de6265 100644
--- a/arch/parisc/include/asm/signal.h
+++ b/arch/parisc/include/asm/signal.h
@@ -105,7 +105,7 @@
 struct siginfo;
 
 /* Type of a signal handler.  */
-#ifdef CONFIG_64BIT
+#if __BITS_PER_LONG == 64
 /* function pointers on 64-bit parisc are pointers to little structs and the
  * compiler doesn't support code which changes or tests the address of
  * the function in the little struct.  This is really ugly -PB
diff --git a/arch/parisc/include/asm/swab.h b/arch/parisc/include/asm/swab.h
index 3ff16c5..e78403b 100644
--- a/arch/parisc/include/asm/swab.h
+++ b/arch/parisc/include/asm/swab.h
@@ -1,7 +1,7 @@
 #ifndef _PARISC_SWAB_H
 #define _PARISC_SWAB_H
 
-#include <asm/types.h>
+#include <linux/types.h>
 #include <linux/compiler.h>
 
 #define __SWAB_64_THRU_32__
diff --git a/arch/parisc/include/asm/types.h b/arch/parisc/include/asm/types.h
index 7f5a39b..14bb5bd 100644
--- a/arch/parisc/include/asm/types.h
+++ b/arch/parisc/include/asm/types.h
@@ -9,6 +9,14 @@ typedef unsigned short umode_t;
 
 #endif /* __ASSEMBLY__ */
 
+#ifndef __KERNEL__
+#ifdef __LP64__
+# define __BITS_PER_LONG 64
+#else
+# define __BITS_PER_LONG 32
+#endif /* __LP64__ */
+#endif /* __KERNEL__ */
+
 /*
  * These aren't exported outside the kernel to avoid name space clashes
  */
@@ -22,6 +30,8 @@ typedef unsigned short umode_t;
 #define SHIFT_PER_LONG 5
 #endif
 
+#define __BITS_PER_LONG	BITS_PER_LONG
+
 #ifndef __ASSEMBLY__
 
 /* Dma addresses are 32-bits wide.  */
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From - Thu Nov 08 21:03:35 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: don't touch driver core internals
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To: Greg KH <greg@kroah.com>
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On Mon, 2009-01-26 at 17:07 -0800, Greg KH wrote:
> From: Greg Kroah-Hartman <gregkh@suse.de>
> 
> It isn't wise to use the struct device klists on their own, as their
> implementation has a tendancy to change at times.  Instead, use the
> functions created for iterating over lists of devices, as it handles all
> of the dirty klist work for you automatically.
> 
> This is needed as the driver core is changing how klists are stored in
> struct device in the near future.
> 
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: Matthew Wilcox <matthew@wil.cx>
> Cc: Grant Grundler <grundler@parisc-linux.org>
> Cc: Kay Sievers <kay.sievers@vrfy.org>
> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
> 
> ---
> 
> I can keep this in my driver-core tree, where is it required in order
> for parisc to build properly.  Or you all can take this now, in your
> tree, whatever is easier for you.
> 
>  drivers/char/agp/parisc-agp.c |   24 ++++++---------
>  drivers/parisc/gsc.c          |   40 +++++++++++++++-----------
>  drivers/parisc/sba_iommu.c    |   64 ++++++++++++++++++++++++------------------
>  3 files changed, 71 insertions(+), 57 deletions(-)

Actually, we already have such a patch here:

http://marc.info/?l=linux-parisc&m=123154903507114

The approaches look identical.

James


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From - Thu Nov 08 21:03:35 2018
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From: Greg KH <greg@kroah.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: don't touch driver core internals
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On Wed, Jan 28, 2009 at 11:25:19AM -0600, James Bottomley wrote:
> On Mon, 2009-01-26 at 17:07 -0800, Greg KH wrote:
> > From: Greg Kroah-Hartman <gregkh@suse.de>
> > 
> > It isn't wise to use the struct device klists on their own, as their
> > implementation has a tendancy to change at times.  Instead, use the
> > functions created for iterating over lists of devices, as it handles all
> > of the dirty klist work for you automatically.
> > 
> > This is needed as the driver core is changing how klists are stored in
> > struct device in the near future.
> > 
> > Cc: Kyle McMartin <kyle@mcmartin.ca>
> > Cc: Matthew Wilcox <matthew@wil.cx>
> > Cc: Grant Grundler <grundler@parisc-linux.org>
> > Cc: Kay Sievers <kay.sievers@vrfy.org>
> > Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
> > 
> > ---
> > 
> > I can keep this in my driver-core tree, where is it required in order
> > for parisc to build properly.  Or you all can take this now, in your
> > tree, whatever is easier for you.
> > 
> >  drivers/char/agp/parisc-agp.c |   24 ++++++---------
> >  drivers/parisc/gsc.c          |   40 +++++++++++++++-----------
> >  drivers/parisc/sba_iommu.c    |   64 ++++++++++++++++++++++++------------------
> >  3 files changed, 71 insertions(+), 57 deletions(-)
> 
> Actually, we already have such a patch here:
> 
> http://marc.info/?l=linux-parisc&m=123154903507114
> 
> The approaches look identical.

Author: Greg Kroah-Hartman <gregkh@suse.de>  ???

I wrote that?  heh, I forgot all about that...

Yeah, that looks fine to me.

thanks,

greg k-h
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From - Thu Nov 08 21:03:35 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: [PATCH] parisc: don't touch driver core internals
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On Wed, Jan 28, 2009 at 09:35:57AM -0800, Greg KH wrote:
> I wrote that?  heh, I forgot all about that...
> 
> Yeah, that looks fine to me.
> 

If you and Pat hadn't converted struct device to use klists we
wouldn't be in this mess... ;-)

Ack... My tree or yours, greg? I've already got James' patch I believe.

cheers, Kyle
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From - Thu Nov 08 21:03:35 2018
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From: Greg KH <greg@kroah.com>
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Subject: Re: [PATCH] parisc: don't touch driver core internals
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On Wed, Jan 28, 2009 at 12:41:22PM -0500, Kyle McMartin wrote:
> On Wed, Jan 28, 2009 at 09:35:57AM -0800, Greg KH wrote:
> > I wrote that?  heh, I forgot all about that...
> > 
> > Yeah, that looks fine to me.
> > 
> 
> If you and Pat hadn't converted struct device to use klists we
> wouldn't be in this mess... ;-)

Well, you could have used the helper functions then...

> Ack... My tree or yours, greg? I've already got James' patch I believe.

If you want to take it, I have no objection.  Let me know which is
easier for you.

thanks,

greg k-h
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From - Thu Nov 08 21:03:35 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [PATCH] PARISC: fix wrong assumption about bus->self
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Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> posted a patch series
to linux-pci to fix a wrong assumption about pci_bus->self==NULL for
all PCI host bus controllers. While PARISC platforms to not behave
this way, I prefer to have the code consistent across architectures.
The following patch replaces pci_bus->self with pci_bus->parent when
used as a test to check for "root bus controller".

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
---
Kyle, AFAIK, this isn't urgent for parisc and can wait for 2.6.30.
Not unless you or jejb feel strongly it should go in at around the
same time as the patches from Kenji-san go in.

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index d539d9d..f79266c 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -587,7 +587,7 @@ dino_fixup_bus(struct pci_bus *bus)
 			bus->resource[i+1] = &res[i];
 		}
 
-	} else if(bus->self) {
+	} else if (bus->parent) {
 		int i;
 
 		pci_read_bridge_bases(bus);
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 0797659..1cdfdea 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -487,7 +487,7 @@ iosapic_xlate_pin(struct iosapic_info *isi, struct pci_dev *pcidev)
 	}
 
 	/* Check if pcidev behind a PPB */
-	if (NULL != pcidev->bus->self) {
+	if (pcidev->bus->parent) {
 		/* Convert pcidev INTR_PIN into something we
 		** can lookup in the IRT.
 		*/
@@ -523,10 +523,9 @@ iosapic_xlate_pin(struct iosapic_info *isi, struct pci_dev *pcidev)
 #endif /* PCI_BRIDGE_FUNCS */
 
 		/*
-		** Locate the host slot the PPB nearest the Host bus
-		** adapter.
-		*/
-		while (NULL != p->parent->self)
+		 * Locate the host slot of the PPB.
+		 */
+		while (p->parent->parent)
 			p = p->parent;
 
 		intr_slot = PCI_SLOT(p->self->devfn);
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index d8233de..59fbbf1 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -644,7 +644,7 @@ lba_fixup_bus(struct pci_bus *bus)
 	** Properly Setup MMIO resources for this bus.
 	** pci_alloc_primary_bus() mangles this.
 	*/
-	if (bus->self) {
+	if (bus->parent) {
 		int i;
 		/* PCI-PCI Bridge */
 		pci_read_bridge_bases(bus);
@@ -802,7 +802,7 @@ lba_fixup_bus(struct pci_bus *bus)
 ** Can't fixup here anyway....garr...
 */
 	if (fbb_enable) {
-		if (bus->self) {
+		if (bus->parent) {
 			u8 control;
 			/* enable on PPB */
 			(void) pci_read_config_byte(bus->self, PCI_BRIDGE_CONTROL, &control);
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From - Thu Nov 08 21:03:35 2018
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From: Colin Watson <cjwatson@canonical.com>
Newsgroups: gmane.linux.ports.parisc
Subject: parisc: expose 32/64-bit capabilities in cpuinfo
Date: Fri, 30 Jan 2009 01:03:50 +0000
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It'd be rather useful for debian-installer if we could get hold of
accurate firmware information on whether only 32-bit kernels are
supported, only 64-bit kernels, or both; this would allow us to present
an accurate menu of kernel packages if more than one is available,
rather than the user having to guess. This patch attempts to expose it
in cpuinfo.

I adjusted pdc_model_capabilities to cope with a potential
PDC_INVALID_ARG return as the firmware manual instructs, by assuming
32-bit only. This may be the wrong place for it.

I made up user-visible capability names by total fiat and for the moment
ignored the other bits that may appear in the capabilities word.

I have no PA-RISC machine myself to test on, and no PA experience
either, so I rather hope that somebody will kind-heartedly take this and
fix it up if needed. I ran it past Dann Frazier on IRC and he said
"looks good to me", but I think without testing.

Also, this is against the Ubuntu 2.6.28 kernel tree since that's what I
had handy and I was a bit tight on disk space to slurp down another
tree. Sorry if it's skewed in any relevant way; I'll be happy to adjust
if necessary.

Thanks in advance!

Signed-off-by: Colin Watson <cjwatson@canonical.com>

diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index c584b00..01e8063 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -49,6 +49,8 @@
 #define PDC_MODEL_CPU_ID	6	/* returns cpu-id (only newer machines!) */
 #define PDC_MODEL_CAPABILITIES	7	/* returns OS32/OS64-flags	*/
 /* Values for PDC_MODEL_CAPABILITIES non-equivalent virtual aliasing support */
+#define  PDC_MODEL_OS64			(1 << 0)
+#define  PDC_MODEL_OS32			(1 << 1)
 #define  PDC_MODEL_IOPDIR_FDC		(1 << 2)
 #define  PDC_MODEL_NVA_MASK		(3 << 4)
 #define  PDC_MODEL_NVA_SUPPORTED	(0 << 4)
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 03f26bd..cf118ef 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -527,7 +527,11 @@ int pdc_model_capabilities(unsigned long *capabilities)
         pdc_result[0] = 0; /* preset zero (call may not be implemented!) */
         retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES, __pa(pdc_result), 0);
         convert_to_wide(pdc_result);
-        *capabilities = pdc_result[0];
+        if (retval == PDC_OK) {
+                *capabilities = pdc_result[0];
+        } else {
+                *capabilities = PDC_MODEL_OS32;
+        }
         spin_unlock_irqrestore(&pdc_lock, flags);
 
         return retval;
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 370086f..4b54479 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -362,6 +362,13 @@ show_cpuinfo (struct seq_file *m, void *v)
 				 boot_cpu_data.cpu_hz / 1000000,
 				 boot_cpu_data.cpu_hz % 1000000  );
 
+		seq_printf(m, "capabilities\t:");
+		if (boot_cpu_data.pdc.capabilities & PDC_MODEL_OS32)
+			seq_printf(m, " os32");
+		if (boot_cpu_data.pdc.capabilities & PDC_MODEL_OS64)
+			seq_printf(m, " os64");
+		seq_printf(m, "\n");
+
 		seq_printf(m, "model\t\t: %s\n"
 				"model name\t: %s\n",
 				 boot_cpu_data.pdc.sys_model_name,

-- 
Colin Watson                                    [cjwatson@canonical.com]
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From - Thu Nov 08 21:03:35 2018
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From: Kyle McMartin <kyle@infradead.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: expose 32/64-bit capabilities in cpuinfo
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On Fri, Jan 30, 2009 at 01:03:50AM +0000, Colin Watson wrote:
> Also, this is against the Ubuntu 2.6.28 kernel tree since that's what I
> had handy and I was a bit tight on disk space to slurp down another
> tree. Sorry if it's skewed in any relevant way; I'll be happy to adjust
> if necessary.
> 

No big deal, this code doesn't change often.

> Thanks in advance!
> 
> Signed-off-by: Colin Watson <cjwatson@canonical.com>
> 

Looks good to me, applied.

cheers, Kyle

> diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
> index c584b00..01e8063 100644
> --- a/arch/parisc/include/asm/pdc.h
> +++ b/arch/parisc/include/asm/pdc.h
> @@ -49,6 +49,8 @@
>  #define PDC_MODEL_CPU_ID	6	/* returns cpu-id (only newer machines!) */
>  #define PDC_MODEL_CAPABILITIES	7	/* returns OS32/OS64-flags	*/
>  /* Values for PDC_MODEL_CAPABILITIES non-equivalent virtual aliasing support */
> +#define  PDC_MODEL_OS64			(1 << 0)
> +#define  PDC_MODEL_OS32			(1 << 1)
>  #define  PDC_MODEL_IOPDIR_FDC		(1 << 2)
>  #define  PDC_MODEL_NVA_MASK		(3 << 4)
>  #define  PDC_MODEL_NVA_SUPPORTED	(0 << 4)
> diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
> index 03f26bd..cf118ef 100644
> --- a/arch/parisc/kernel/firmware.c
> +++ b/arch/parisc/kernel/firmware.c
> @@ -527,7 +527,11 @@ int pdc_model_capabilities(unsigned long *capabilities)
>          pdc_result[0] = 0; /* preset zero (call may not be implemented!) */
>          retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES, __pa(pdc_result), 0);
>          convert_to_wide(pdc_result);
> -        *capabilities = pdc_result[0];
> +        if (retval == PDC_OK) {
> +                *capabilities = pdc_result[0];
> +        } else {
> +                *capabilities = PDC_MODEL_OS32;
> +        }
>          spin_unlock_irqrestore(&pdc_lock, flags);
>  
>          return retval;
> diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
> index 370086f..4b54479 100644
> --- a/arch/parisc/kernel/processor.c
> +++ b/arch/parisc/kernel/processor.c
> @@ -362,6 +362,13 @@ show_cpuinfo (struct seq_file *m, void *v)
>  				 boot_cpu_data.cpu_hz / 1000000,
>  				 boot_cpu_data.cpu_hz % 1000000  );
>  
> +		seq_printf(m, "capabilities\t:");
> +		if (boot_cpu_data.pdc.capabilities & PDC_MODEL_OS32)
> +			seq_printf(m, " os32");
> +		if (boot_cpu_data.pdc.capabilities & PDC_MODEL_OS64)
> +			seq_printf(m, " os64");
> +		seq_printf(m, "\n");
> +
>  		seq_printf(m, "model\t\t: %s\n"
>  				"model name\t: %s\n",
>  				 boot_cpu_data.pdc.sys_model_name,
> 
> -- 
> Colin Watson                                    [cjwatson@canonical.com]
> --
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From - Thu Nov 08 21:03:36 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: [PATCH] PARISC: fix wrong assumption about bus->self
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To: Grant Grundler <grundler@parisc-linux.org>
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On Wed, Jan 28, 2009 at 10:30:55PM -0700, Grant Grundler wrote:
> Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> posted a patch series
> to linux-pci to fix a wrong assumption about pci_bus->self==NULL for
> all PCI host bus controllers. While PARISC platforms to not behave
> this way, I prefer to have the code consistent across architectures.
> The following patch replaces pci_bus->self with pci_bus->parent when
> used as a test to check for "root bus controller".
> 
> Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
> ---
> Kyle, AFAIK, this isn't urgent for parisc and can wait for 2.6.30.
> Not unless you or jejb feel strongly it should go in at around the
> same time as the patches from Kenji-san go in.
> 

Looks fairly unlikely to introduce any issues, applied.

Thanks Grant.

cheers, Kyle

> diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
> index d539d9d..f79266c 100644
> --- a/drivers/parisc/dino.c
> +++ b/drivers/parisc/dino.c
> @@ -587,7 +587,7 @@ dino_fixup_bus(struct pci_bus *bus)
>  			bus->resource[i+1] = &res[i];
>  		}
>  
> -	} else if(bus->self) {
> +	} else if (bus->parent) {
>  		int i;
>  
>  		pci_read_bridge_bases(bus);
> diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
> index 0797659..1cdfdea 100644
> --- a/drivers/parisc/iosapic.c
> +++ b/drivers/parisc/iosapic.c
> @@ -487,7 +487,7 @@ iosapic_xlate_pin(struct iosapic_info *isi, struct pci_dev *pcidev)
>  	}
>  
>  	/* Check if pcidev behind a PPB */
> -	if (NULL != pcidev->bus->self) {
> +	if (pcidev->bus->parent) {
>  		/* Convert pcidev INTR_PIN into something we
>  		** can lookup in the IRT.
>  		*/
> @@ -523,10 +523,9 @@ iosapic_xlate_pin(struct iosapic_info *isi, struct pci_dev *pcidev)
>  #endif /* PCI_BRIDGE_FUNCS */
>  
>  		/*
> -		** Locate the host slot the PPB nearest the Host bus
> -		** adapter.
> -		*/
> -		while (NULL != p->parent->self)
> +		 * Locate the host slot of the PPB.
> +		 */
> +		while (p->parent->parent)
>  			p = p->parent;
>  
>  		intr_slot = PCI_SLOT(p->self->devfn);
> diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
> index d8233de..59fbbf1 100644
> --- a/drivers/parisc/lba_pci.c
> +++ b/drivers/parisc/lba_pci.c
> @@ -644,7 +644,7 @@ lba_fixup_bus(struct pci_bus *bus)
>  	** Properly Setup MMIO resources for this bus.
>  	** pci_alloc_primary_bus() mangles this.
>  	*/
> -	if (bus->self) {
> +	if (bus->parent) {
>  		int i;
>  		/* PCI-PCI Bridge */
>  		pci_read_bridge_bases(bus);
> @@ -802,7 +802,7 @@ lba_fixup_bus(struct pci_bus *bus)
>  ** Can't fixup here anyway....garr...
>  */
>  	if (fbb_enable) {
> -		if (bus->self) {
> +		if (bus->parent) {
>  			u8 control;
>  			/* enable on PPB */
>  			(void) pci_read_config_byte(bus->self, PCI_BRIDGE_CONTROL, &control);
> --
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From - Thu Nov 08 21:03:36 2018
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From: Kyle McMartin <kyle@infradead.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: don't touch driver core internals
Date: Fri, 30 Jan 2009 10:10:59 -0500
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Cc: Kyle McMartin <kyle@infradead.org>,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	linux-parisc@vger.kernel.org, Kyle McMartin <kyle@mcmartin.ca>,
	Matthew Wilcox <matthew@wil.cx>,
	Grant Grundler <grundler@parisc-linux.org>,
	Kay Sievers <kay.sievers@vrfy.org>
To: Greg KH <greg@kroah.com>
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On Wed, Jan 28, 2009 at 09:58:23AM -0800, Greg KH wrote:
> On Wed, Jan 28, 2009 at 12:41:22PM -0500, Kyle McMartin wrote:
> > On Wed, Jan 28, 2009 at 09:35:57AM -0800, Greg KH wrote:
> > > I wrote that?  heh, I forgot all about that...
> > > 
> > > Yeah, that looks fine to me.
> > > 
> > 
> > If you and Pat hadn't converted struct device to use klists we
> > wouldn't be in this mess... ;-)
> 
> Well, you could have used the helper functions then...
> 
> > Ack... My tree or yours, greg? I've already got James' patch I believe.
> 
> If you want to take it, I have no objection.  Let me know which is
> easier for you.
> 

Ok, I've already got James' patch in my tree, I'll push it all along
tonight.

cheers, Kyle
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From - Thu Nov 08 21:03:36 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: commit mail stuff
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To: Thibaut VARENE <varenet@parisc-linux.org>,
	Kyle McMartin <kyle@infradead.org>
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Thibaut VARENE wrote:
> On Wed, Jan 21, 2009 at 3:31 PM, Kyle McMartin <kyle@infradead.org> wrote:
> 
>> commit 1890e15142aa1318bb9775c4ea021aa022c506dc
>> Author: Helge Deller <deller@gmx.de>
>> Date:   Tue Jan 6 14:23:13 2009 +0100
>>
>>    parisc: blink loadavg LEDs on Oops
>>
> 
> I thought we agreed this was a bad idea and that this patch should be
> left aside?
> Helge?

Yes, that was an idea.
But we can easily detect which kind of machine it is, and then
either blink all LEDs or just the loadavg. LEDs. The patch below
does this and should be then fine for you?

Kyle, could you apply the patch below as well?

Helge
------------------------------------------------------------
parisc: blink all or loadavg. LEDs on Oops depending on machine type.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index 6d8753e..d6026d4 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -463,12 +463,19 @@ static void led_work_func (struct work_struct *unused)
 	if (likely(led_lanrxtx))  currentleds |= led_get_net_activity();
 	if (likely(led_diskio))   currentleds |= led_get_diskio_activity();
 
-	/* blink loadavg LEDs twice per second if we got an Oops (HPMC) */
+	/* blink LEDs if we got an Oops (HPMC) */
 	if (unlikely(oops_in_progress)) {
-		if (count_HZ <= (HZ/2))
-			currentleds &= ~(LED4|LED5|LED6|LED7);
-		else
-			currentleds |= (LED4|LED5|LED6|LED7);
+		if (boot_cpu_data.cpu_type >= pcxl2) {
+			/* newer machines don't have loadavg. LEDs, so we
+			 * let all LEDs blink twice per second instead */
+			currentleds = (count_HZ <= (HZ/2)) ? 0 : 0xff;
+		} else {
+			/* old machines: blink loadavg. LEDs twice per second */
+			if (count_HZ <= (HZ/2))
+				currentleds &= ~(LED4|LED5|LED6|LED7);
+			else
+				currentleds |= (LED4|LED5|LED6|LED7);
+		}
 	}
 
 	if (currentleds != lastleds)
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From - Thu Nov 08 21:03:36 2018
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From: Thibaut VARENE <varenet@parisc-linux.org>
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On Fri, Jan 30, 2009 at 9:27 PM, Helge Deller <deller@gmx.de> wrote:
> Thibaut VARENE wrote:
>> On Wed, Jan 21, 2009 at 3:31 PM, Kyle McMartin <kyle@infradead.org> =
wrote:
>>
>>> commit 1890e15142aa1318bb9775c4ea021aa022c506dc
>>> Author: Helge Deller <deller@gmx.de>
>>> Date:   Tue Jan 6 14:23:13 2009 +0100
>>>
>>>    parisc: blink loadavg LEDs on Oops
>>>
>>
>> I thought we agreed this was a bad idea and that this patch should b=
e
>> left aside?
>> Helge?
>
> Yes, that was an idea.
> But we can easily detect which kind of machine it is, and then
> either blink all LEDs or just the loadavg. LEDs. The patch below
> does this and should be then fine for you?

Ayup ;) Thanks for coming up with this!
Acked-by: Thibaut Var=C3=A8ne <varenet@parisc-linux.org> (if that matte=
rs ;)

> Kyle, could you apply the patch below as well?
>
> Helge
> ------------------------------------------------------------
> parisc: blink all or loadavg. LEDs on Oops depending on machine type.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
> index 6d8753e..d6026d4 100644
> --- a/drivers/parisc/led.c
> +++ b/drivers/parisc/led.c
> @@ -463,12 +463,19 @@ static void led_work_func (struct work_struct *=
unused)
>        if (likely(led_lanrxtx))  currentleds |=3D led_get_net_activit=
y();
>        if (likely(led_diskio))   currentleds |=3D led_get_diskio_acti=
vity();
>
> -       /* blink loadavg LEDs twice per second if we got an Oops (HPM=
C) */
> +       /* blink LEDs if we got an Oops (HPMC) */
>        if (unlikely(oops_in_progress)) {
> -               if (count_HZ <=3D (HZ/2))
> -                       currentleds &=3D ~(LED4|LED5|LED6|LED7);
> -               else
> -                       currentleds |=3D (LED4|LED5|LED6|LED7);
> +               if (boot_cpu_data.cpu_type >=3D pcxl2) {
> +                       /* newer machines don't have loadavg. LEDs, s=
o we
> +                        * let all LEDs blink twice per second instea=
d */
> +                       currentleds =3D (count_HZ <=3D (HZ/2)) ? 0 : =
0xff;
> +               } else {
> +                       /* old machines: blink loadavg. LEDs twice pe=
r second */
> +                       if (count_HZ <=3D (HZ/2))
> +                               currentleds &=3D ~(LED4|LED5|LED6|LED=
7);
> +                       else
> +                               currentleds |=3D (LED4|LED5|LED6|LED7=
);
> +               }
>        }
>
>        if (currentleds !=3D lastleds)
> --
> To unsubscribe from this list: send the line "unsubscribe linux-paris=
c" in
> the body of a message to majordomo@vger.kernel.org
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>



--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:03:36 2018
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From - Thu Nov 08 21:03:36 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: define SRCARCH=parisc for parisc64 builds
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The parisc64 target (HP PARISC, 64bit kernel) is similar to the sparc64 or 
m68knommu targets, as it shares all sources for 32- and 64-bit in one single
source path which is arch/parisc/.
This patch now allows one to use ARCH=parisc64 and just directly build the
64bit kernel without creating symlinks in arch/ and include/asm-* manually
the same way as it's done for sparc64 and m68knommu.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/Makefile b/Makefile
index cf9e20d..3582985 100644
--- a/Makefile
+++ b/Makefile
@@ -210,6 +210,11 @@ ifeq ($(ARCH),sparc64)
        SRCARCH := sparc
 endif
 
+# Additional ARCH settings for parisc
+ifeq ($(ARCH),parisc64)
+       SRCARCH := parisc
+endif
+
 # Where to locate arch specific headers
 hdr-arch  := $(SRCARCH)
 
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From: Stephen Rothwell <sfr@canb.auug.org.au>
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Subject: linux-next: manual merge of the driver-core tree with the parisc
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Hi Greg,

Today's linux-next merge of the driver-core tree got conflicts in
drivers/char/agp/parisc-agp.c, drivers/parisc/gsc.c and
drivers/parisc/sba_iommu.c between commit
a130bf34da4b64d7b289e2358530ef5d4ab27efd ("parisc: remove klist
iterators") from the parisc tree and commit
135bd8a5aeed90af407aeeede9587ee99c5606b2 ("parisc: don't touch driver
core internals") from the driver-core tree.

These two commits seem to be trying to do similar things.  I have used
the versions from the parisc tree.  Greg, I guess you need to check to
see if you agree and if so, then just remove the driver-core tree patch.

James, Kyle, the one thing I took from Greg's patch was the removal of
the include of linux/klist.h from drivers/char/agp/parisc-agp.c.

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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From - Thu Nov 08 21:03:36 2018
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From: Greg KH <greg@kroah.com>
Newsgroups: gmane.linux.kernel.next,gmane.linux.ports.parisc
Subject: Re: linux-next: manual merge of the driver-core tree with the
	parisc tree
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On Mon, Feb 02, 2009 at 11:11:12AM +1100, Stephen Rothwell wrote:
> Hi Greg,
> 
> Today's linux-next merge of the driver-core tree got conflicts in
> drivers/char/agp/parisc-agp.c, drivers/parisc/gsc.c and
> drivers/parisc/sba_iommu.c between commit
> a130bf34da4b64d7b289e2358530ef5d4ab27efd ("parisc: remove klist
> iterators") from the parisc tree and commit
> 135bd8a5aeed90af407aeeede9587ee99c5606b2 ("parisc: don't touch driver
> core internals") from the driver-core tree.
> 
> These two commits seem to be trying to do similar things.  I have used
> the versions from the parisc tree.  Greg, I guess you need to check to
> see if you agree and if so, then just remove the driver-core tree patch.

Yes, the parisc version is fine.

> James, Kyle, the one thing I took from Greg's patch was the removal of
> the include of linux/klist.h from drivers/char/agp/parisc-agp.c.

That would be good as well.

I'll fix up my tree tomorrow.

thanks,

greg k-h

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Hi Greg,

On Sun, 1 Feb 2009 20:41:44 -0800 Greg KH <greg@kroah.com> wrote:
>
> > These two commits seem to be trying to do similar things.  I have used
> > the versions from the parisc tree.  Greg, I guess you need to check to
> > see if you agree and if so, then just remove the driver-core tree patch.
>=20
> Yes, the parisc version is fine.
>=20
> > James, Kyle, the one thing I took from Greg's patch was the removal of
> > the include of linux/klist.h from drivers/char/agp/parisc-agp.c.
>=20
> That would be good as well.
>=20
> I'll fix up my tree tomorrow.

Thanks for checking.

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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From - Thu Nov 08 21:03:36 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: allow to build with 16k default kernel page size
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Introduce new convert_for_tlb_insert20 macro and use it to replace assembler
statements with hardcoded constants.
This change allows the parisc64 kernel to boot with 16kb default kernel page size, 
aka CONFIG_PARISC_PAGE_SIZE_16KB=y.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 0f7ff93..4e9dd15 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -505,6 +505,18 @@
 	STREG		\pte,0(\ptep)
 	.endm
 
+	/* bitshift difference between a PFN (based on kernel's PAGE_SIZE)
+	 * to a CPU TLB 4k PFN (4k => 12 bits to shift) */
+	#define PAGE_ADD_SHIFT  (PAGE_SHIFT-12)
+
+	/* Drop prot bits and convert to page addr for iitlbt and idtlbt */
+	.macro		convert_for_tlb_insert20 pte
+	extrd,u		\pte,(63-ASM_PFN_PTE_SHIFT)+(63-58)+PAGE_ADD_SHIFT,\
+				64-PAGE_SHIFT-PAGE_ADD_SHIFT,\pte
+	depdi		_PAGE_SIZE_ENCODING_DEFAULT,63,\
+				(63-58)+PAGE_ADD_SHIFT,\pte
+	.endm
+
 	/* Convert the pte and prot to tlb insertion values.  How
 	 * this happens is quite subtle, read below */
 	.macro		make_insert_tlb	spc,pte,prot
@@ -544,8 +556,7 @@
 	depi		1,12,1,\prot
 
 	/* Drop prot bits and convert to page addr for iitlbt and idtlbt */
-	extrd,u		\pte,(63-ASM_PFN_PTE_SHIFT)+(63-58),64-PAGE_SHIFT,\pte
-	depdi		_PAGE_SIZE_ENCODING_DEFAULT,63,63-58,\pte
+	convert_for_tlb_insert20 \pte
 	.endm
 
 	/* Identical macro to make_insert_tlb above, except it
@@ -1244,10 +1255,9 @@ nadtlb_check_flush_20w:
 	depdi,z         7,7,3,prot
 	depdi           1,10,1,prot
 
-	/* Get rid of prot bits and convert to page addr for idtlbt */
+	/* Drop prot bits from pte and convert to page addr for idtlbt */
+	convert_for_tlb_insert20 pte
 
-	depdi		0,63,12,pte
-	extrd,u         pte,56,52,pte
 	idtlbt          pte,prot
 
 	rfir
@@ -1403,10 +1413,9 @@ nadtlb_check_flush_20:
 	depdi,z         7,7,3,prot
 	depdi           1,10,1,prot
 
-	/* Get rid of prot bits and convert to page addr for idtlbt */
+	/* Drop prot bits from pte and convert to page addr for idtlbt */
+	convert_for_tlb_insert20 pte
 
-	depdi		0,63,12,pte
-	extrd,u         pte,56,32,pte
 	idtlbt          pte,prot
 
 	rfir
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index aacf11d..4866e2f 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -75,6 +75,9 @@ config GENERIC_HARDIRQS
 config GENERIC_IRQ_PROBE
 	def_bool y
 
+config HAVE_LATENCYTOP_SUPPORT
+        def_bool y
+
 config IRQ_PER_CPU
 	bool
 	default y
@@ -83,6 +86,9 @@ config IRQ_PER_CPU
 config PM
 	bool
 
+config STACKTRACE_SUPPORT
+	def_bool y
+
 config ISA_DMA_API
 	bool
 
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 016d3fc..a7ba8cd 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -16,5 +16,6 @@ obj-$(CONFIG_PA11)	+= pci-dma.o
 obj-$(CONFIG_PCI)	+= pci.o
 obj-$(CONFIG_MODULES)	+= module.o
 obj-$(CONFIG_64BIT)	+= binfmt_elf32.o sys_parisc32.o signal32.o
+obj-$(CONFIG_STACKTRACE)+= stacktrace.o
 # only supported for PCX-W/U in 64-bit mode at the moment
 obj-$(CONFIG_64BIT)	+= perf.o perf_asm.o
diff -up ./arch/parisc/kernel/stacktrace.c.org ./arch/parisc/kernel/stacktrace.c
--- a/arch/parisc/kernel/stacktrace.c.org	2009-02-06 21:40:33.000000000 +0100
+++ b/arch/parisc/kernel/stacktrace.c	2009-02-06 21:45:16.000000000 +0100
@@ -0,0 +1,63 @@
+/*
+ * Stack trace management functions
+ *
+ *  Copyright (C) 2009 Helge Deller <deller@gmx.de>
+ *  based on arch/x86/kernel/stacktrace.c by Ingo Molnar <mingo@redhat.com>
+ *  and parisc unwind functions by Randolph Chung <tausq@debian.org>
+ *
+ *  TODO: Userspace stacktrace (CONFIG_USER_STACKTRACE_SUPPORT)
+ */
+#include <linux/module.h>
+#include <linux/stacktrace.h>
+
+#include <asm/unwind.h>
+
+static void dump_trace(struct task_struct *task, struct stack_trace *trace)
+{
+	struct unwind_frame_info info;
+
+	/* initialize unwind info */
+	if (task == current) {
+		unsigned long sp;
+		struct pt_regs r;
+HERE:
+		asm volatile ("copy %%r30, %0" : "=r"(sp));
+		memset(&r, 0, sizeof(struct pt_regs));
+		r.iaoq[0] = (unsigned long)&&HERE;
+		r.gr[2] = (unsigned long)__builtin_return_address(0);
+		r.gr[30] = sp;
+		unwind_frame_init(&info, task, &r);
+	} else {
+		unwind_frame_init_from_blocked_task(&info, task);
+	}
+
+	/* unwind stack and save entries in stack_trace struct */
+	trace->nr_entries = 0;
+	while (trace->nr_entries < trace->max_entries) {
+		if (unwind_once(&info) < 0 || info.ip == 0)
+			break;
+
+		if (__kernel_text_address(info.ip))
+			trace->entries[trace->nr_entries++] = info.ip;
+	}
+}
+
+
+/*
+ * Save stack-backtrace addresses into a stack_trace buffer.
+ */
+void save_stack_trace(struct stack_trace *trace)
+{
+	dump_trace(current, trace);
+	if (trace->nr_entries < trace->max_entries)
+		trace->entries[trace->nr_entries++] = ULONG_MAX;
+}
+EXPORT_SYMBOL_GPL(save_stack_trace);
+
+void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
+{
+	dump_trace(tsk, trace);
+	if (trace->nr_entries < trace->max_entries)
+		trace->entries[trace->nr_entries++] = ULONG_MAX;
+}
+EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
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From - Thu Nov 08 21:03:36 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: [PATCH] parisc: add LATENCYTOP_SUPPORT and
	CONFIG_STACKTRACE_SUPPORT
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On Fri, Feb 06, 2009 at 09:50:39PM +0100, Helge Deller wrote:
> +#include <asm/unwind.h>
> +
> +static void dump_trace(struct task_struct *task, struct stack_trace *trace)
> +{
> +	struct unwind_frame_info info;
> +
> +	/* initialize unwind info */
> +	if (task == current) {
> +		unsigned long sp;
> +		struct pt_regs r;
> +HERE:
> +		asm volatile ("copy %%r30, %0" : "=r"(sp));
> +		memset(&r, 0, sizeof(struct pt_regs));
> +		r.iaoq[0] = (unsigned long)&&HERE;
> +		r.gr[2] = (unsigned long)__builtin_return_address(0);
> +		r.gr[30] = sp;
> +		unwind_frame_init(&info, task, &r);
> +	} else {
> +		unwind_frame_init_from_blocked_task(&info, task);
> +	}
> +

applied, with a clean up that takes this to a forced inline to share
between here and traps.c.

cheers, Kyle
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From - Thu Nov 08 21:03:37 2018
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From: Helge Deller <deller@gmx.de>
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Hi Carlos, Dave & parisc-linux mailing list,

I just started looking into implementing function tracer functionality 
into the parisc kernel (http://cateee.net/lkddb/web-lkddb/FUNCTION_TRACER.html).

While doing so, I noticed that gcc issues lots of warnings like this one:
  CC      arch/parisc/lib/iomap.o
cc1: warning: -ffunction-sections disabled; it makes profiling impossible

So it seems that this statement in arch/parisc/Makefile:
# Without this, "ld -r" results in .text sections that are too big
# (> 0x40000) for branches to reach stubs.
cflags-y        += -ffunction-sections

breaks with the -pg compile option which is needed for function tracing.

Some searching with google brought up this thread:
http://gcc.gnu.org/ml/gcc-help/2008-11/msg00128.html
and esp. this answer:
http://gcc.gnu.org/ml/gcc-help/2008-11/msg00141.html

Or this thread:
http://osdir.com/ml/linux.debian.ports.hppa/2005-06/msg00045.html

Since it's late I felt too tired to look deeply into glibc and gcc myself and
just thought I should ask here: Do you see any chance that -pg and -ffunction-sections
could work together on hppa/linux?

Helge

PS: I assume my latest patches to fix loading of xfs modules only worked
because we compile the kernel with -ffunction-sections by default. Disabling
-ffunction-sections will then probably bring back the module loading bug... :-(
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From - Thu Nov 08 21:03:37 2018
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Subject: Re: FUNCTION_TRACER and parisc kernel
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> Hi Carlos, Dave & parisc-linux mailing list,
> 
> I just started looking into implementing function tracer functionality 
> into the parisc kernel (http://cateee.net/lkddb/web-lkddb/FUNCTION_TRACER.html).
> 
> While doing so, I noticed that gcc issues lots of warnings like this one:
>   CC      arch/parisc/lib/iomap.o
> cc1: warning: -ffunction-sections disabled; it makes profiling impossible
> 
> So it seems that this statement in arch/parisc/Makefile:
> # Without this, "ld -r" results in .text sections that are too big
> # (> 0x40000) for branches to reach stubs.
> cflags-y        += -ffunction-sections
> 
> breaks with the -pg compile option which is needed for function tracing.
> 
> Some searching with google brought up this thread:
> http://gcc.gnu.org/ml/gcc-help/2008-11/msg00128.html
> and esp. this answer:
> http://gcc.gnu.org/ml/gcc-help/2008-11/msg00141.html

Hmmm, we killed named section support on the HP-UX SOM port several years
ago because it wasn't very useful.  Jeff did it...  So, at this time, only
Solaris is an issue.  Of course, changing the code in toplev.c affects all
targets.  So, a change to remove this would have to go into 4.5 quite
early.

There was some work on the profiling implementation for both HP-UX and
Linux after the removal of named section support on HP-UX, so the label
issue may not be a problem.  Remove the code disabling function sections
when -pg is specified and see what happens.

[I have thought it would be useful to have named sections for dwarf2
debug support on HP-UX.  However, this is not useful for normal code.
I have a patch somewhere to do this, but gdb needs work which I've
never got around to.  So, I might bring named section support back
in a limited way.]

Regarding .text sections that are too big, see this thread:
http://sourceware.org/ml/binutils/2009-02/msg00061.html

It seems that it should be possible to do more fine grained stub
sections.  At this time, it's not fully clear where the problem
lies.  GCC may need to start a new .text section before each function,
or maybe the .text sections are getting merged.

Recently, I got pushed to look a bit at GNU ld.  It turns out there is no
long branch stub support in it at all.  As a result, it can't assemble
large applications like cc1plus.  It can just barely link cc1.  It
might have trouble with a large linux kernel.  I added a check recently
to generate an error if a branch target is out of range.  There's
a possibility that the current code for stub management in elf32-hppa.c
can be modified for hppa64 without too much work.

I don't know about the "ld -r" problem but I suspect we have to stop
.text sections from getting merged in partial links.  The other possiblity
would be to add long branch stubs for calls to undefined symbols.  The
latter approach would complicate final links.

Regards,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:37 2018
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> > So it seems that this statement in arch/parisc/Makefile:
> > # Without this, "ld -r" results in .text sections that are too big
> > # (> 0x40000) for branches to reach stubs.

This needs some debugging.  hppaelf_after_parse in ld/emultempl/hppaelf.em
is supposed to stop the 32-bit linker from merging .text sections on a
relocatable link.

GCC does not generate .text before each new function.  Even if it did,
gas currently merges all functions to a single .text section.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:37 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: FUNCTION_TRACER and parisc kernel
Date: Sat, 07 Feb 2009 20:05:33 +0100
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Cc: carlos@systemhalted.org, linux-parisc@vger.kernel.org
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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John David Anglin wrote:
>> Hi Carlos, Dave & parisc-linux mailing list,
>>
>> I just started looking into implementing function tracer functionality 
>> into the parisc kernel (http://cateee.net/lkddb/web-lkddb/FUNCTION_TRACER.html).
>>
>> While doing so, I noticed that gcc issues lots of warnings like this one:
>>   CC      arch/parisc/lib/iomap.o
>> cc1: warning: -ffunction-sections disabled; it makes profiling impossible
>>
>> So it seems that this statement in arch/parisc/Makefile:
>> # Without this, "ld -r" results in .text sections that are too big
>> # (> 0x40000) for branches to reach stubs.
>> cflags-y        += -ffunction-sections
>>
>> breaks with the -pg compile option which is needed for function tracing.
>>
>> Some searching with google brought up this thread:
>> http://gcc.gnu.org/ml/gcc-help/2008-11/msg00128.html
>> and esp. this answer:
>> http://gcc.gnu.org/ml/gcc-help/2008-11/msg00141.html
> 
> Hmmm, we killed named section support on the HP-UX SOM port several years
> ago because it wasn't very useful.  Jeff did it...  So, at this time, only
> Solaris is an issue.  Of course, changing the code in toplev.c affects all
> targets.  So, a change to remove this would have to go into 4.5 quite
> early.
> 
> There was some work on the profiling implementation for both HP-UX and
> Linux after the removal of named section support on HP-UX, so the label
> issue may not be a problem.  Remove the code disabling function sections
> when -pg is specified and see what happens.

It does not link when building 32bit or PA20 code.
On 64bit it does build and link, although taking the patch from 
http://sourceware.org/ml/binutils/2009-02/msg00040.html
into account, as well as me running an old ld, it might be that
I just don't see it failing yet...

> [I have thought it would be useful to have named sections for dwarf2
> debug support on HP-UX.  However, this is not useful for normal code.
> I have a patch somewhere to do this, but gdb needs work which I've
> never got around to.  So, I might bring named section support back
> in a limited way.]

Ok. This means it would be possible to drop function-sections.

> Regarding .text sections that are too big, see this thread:
> http://sourceware.org/ml/binutils/2009-02/msg00061.html
> 
> It seems that it should be possible to do more fine grained stub
> sections.  At this time, it's not fully clear where the problem
> lies.  GCC may need to start a new .text section before each function,
> or maybe the .text sections are getting merged.
> 
> Recently, I got pushed to look a bit at GNU ld.  It turns out there is no
> long branch stub support in it at all.  As a result, it can't assemble
> large applications like cc1plus.  It can just barely link cc1.  It
> might have trouble with a large linux kernel.  I added a check recently
> to generate an error if a branch target is out of range.  There's
> a possibility that the current code for stub management in elf32-hppa.c
> can be modified for hppa64 without too much work.

That would be great.

> I don't know about the "ld -r" problem but I suspect we have to stop
> .text sections from getting merged in partial links.  The other possiblity
> would be to add long branch stubs for calls to undefined symbols.  The
> latter approach would complicate final links.

Thanks a lot for those explanations!!!
I see I need to dig in closer into ld/gcc as well too :-(

Helge
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From - Thu Nov 08 21:03:37 2018
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From: tsbogend@alpha.franken.de (Thomas Bogendoerfer)
Newsgroups: gmane.linux.ports.parisc
Subject: Hacking SuperDome
Date: Sat, 7 Feb 2009 15:29:06 +0100
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Hi,

thanks to Madze, I've now access to a HP Superdome;-)

I found the first show stopper, which prevents the kernel from
even throwing out the first messages. The narrow firmware detection
hangs. With the quick hack below I'm now able to boot a UP kernel
(SMP hangs when calling init_per_cpu(smp_processor_id()); in setup.c).

The bigger partition produces following boot log:

HARD Booted.
palo ipl 1.14 root@duet Sat Apr  8 16:08:16 EDT 2006

Boot image contains:
    0/vmlinux64 6484269 bytes @ 0xa000

Information: No console specified on kernel command line. This is
normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'HOME=/ ip=dhcp console=ttyS0 TERM=vt102
palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing
64-bit kernelELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4456448 mediaptr 0x1000
Segment 1 load 00588000 size 399072 mediaptr 0x441000
Segment 2 load 005ec000 size 266374 mediaptr 0x4a3000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.29-rc3-00000-g33bfad5-dirty (tsbogend@login) (gcc
version 4.2.1) #23 Sat Feb 7 15:16:57 CET 2009
unwind_init: start = 0x404788c0, end = 0x404a53c0, entries = 11440
WARNING: Out of order unwind entry! 000000004047a400 and
000000004047a410
WARNING: Out of order unwind entry! 000000004047a410 and
000000004047a420
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00005e70 00000491 00000000 00000002 3e0f97abec371bc2 00000000
00000008 000000b2 000000b2
vers  00000202
CPUID vers 19 rev 1 (0x00000261)
capabilities 0x3d
model 9000/800/SD32000
parisc_cache_init: Only equivalent aliasing supported!
Memory Ranges:
 0) Start 0x0000000000000000 End 0x00000007ffffffff Size  32768 MB
 1) Start 0x0000000800000000 End 0x00000009ffffffff Size   8192 MB
 2) Start 0x0000000a00000000 End 0x0000000bffffffff Size   8192 MB
 3) Start 0x0000000c00000000 End 0x0000000df7ffffff Size   8064 MB
Total Memory: 57216 MB
Built 4 zonelists in Zone order, mobility grouping on.  Total pages:
14447040
Kernel command line: HOME=/ ip=dhcp console=ttyS0 TERM=vt102
palo_kernel=0/vmlinux
PID hash table entries: 4096 (order: 12, 32768 bytes)
Dentry cache hash table entries: 8388608 (order: 14, 67108864 bytes)
Inode-cache hash table entries: 4194304 (order: 13, 33554432 bytes)
Memory: 57567696k/58589184k available (2869k kernel code, 1019520k
reserved, 1434k data, 264k init)
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x0000000e38000000   (57216 MB)
      .init : 0x00000000405ec000 - 0x000000004062e000   ( 264 kB)
      .data : 0x00000000403cd650 - 0x0000000040534000   (1434 kB)
      .text : 0x0000000040100000 - 0x00000000403cd650   (2869 kB)
Calibrating delay loop... 1495.04 BogoMIPS (lpj=2990080)
Security Framework initialized
Mount-cache hash table entries: 256
net_namespace: 544 bytes
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Two devices have hardware path [255].  IODC data for second device:
00404e0000abRearranging GSC cards sometimes helps
Two devices have hardware path [255].  IODC data for second device:
00404e0000abRearranging GSC cards sometimes helps
Found devices:
1. Caribe DNA Central Agent at 0xfffffffffc000000 [255] { 14, 0x0,
0x007, 0x000aa }
2. Caribe W2 800 at 0xfffffffffc078000 [10] { 0, 0x0, 0x5e7, 0x00004 }
3. Caribe W2 800 at 0xfffffffffc07a000 [11] { 0, 0x0, 0x5e7, 0x00004 }
4. Caribe W2 800 at 0xfffffffffc07c000 [12] { 0, 0x0, 0x5e7, 0x00004 }
5. Caribe W2 800 at 0xfffffffffc07e000 [13] { 0, 0x0, 0x5e7, 0x00004 }
6. Memory at 0xfffffffffc005000 [5] { 1, 0x0, 0x0a8, 0x00009 }
7. REO I/O BC Merced Port at 0xfffffff808000000 [0] { 7, 0x0, 0x804,
0x0000c }
8. Elroy PCI Bridge at 0xfffffff804000000 [0/0] { 13, 0x0, 0x782,
0x0000a }
9. Elroy PCI Bridge at 0xfffffff804002000 [0/1] { 13, 0x0, 0x782,
0x0000a }
10. Elroy PCI Bridge at 0xfffffff804004000 [0/2] { 13, 0x0, 0x782,
0x0000a }
11. Elroy PCI Bridge at 0xfffffff804006000 [0/3] { 13, 0x0, 0x782,
0x0000a }
12. Elroy PCI Bridge at 0xfffffff804008000 [0/4] { 13, 0x0, 0x782,
0x0000a }
13. Elroy PCI Bridge at 0xfffffff80400c000 [0/6] { 13, 0x0, 0x782,
0x0000a }
14. Elroy PCI Bridge at 0xfffffff804010000 [0/8] { 13, 0x0, 0x782,
0x0000a }
15. Elroy PCI Bridge at 0xfffffff804012000 [0/9] { 13, 0x0, 0x782,
0x0000a }
16. Elroy PCI Bridge at 0xfffffff804014000 [0/10] { 13, 0x0, 0x782,
0x0000a }
17. Elroy PCI Bridge at 0xfffffff804016000 [0/11] { 13, 0x0, 0x782,
0x0000a }
18. Elroy PCI Bridge at 0xfffffff804018000 [0/12] { 13, 0x0, 0x782,
0x0000a }
19. Elroy PCI Bridge at 0xfffffff80401c000 [0/14] { 13, 0x0, 0x782,
0x0000a }
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 11 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 12 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 13 failed with error 1
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
Setting cache flush threshold to 180000 (1 CPUs online)
SBA found REO rev 2 at 0xfffffff808000000
Elroy version TR4.0 (0x5) found at 0xfffffff804000000
Elroy version TR4.0 (0x5) found at 0xfffffff804002000
Elroy version TR4.0 (0x5) found at 0xfffffff804004000
Elroy version TR4.0 (0x5) found at 0xfffffff804006000
Elroy version TR4.0 (0x5) found at 0xfffffff804008000
Elroy version TR4.0 (0x5) found at 0xfffffff80400c000
Elroy version TR4.0 (0x5) found at 0xfffffff804010000
Elroy version TR4.0 (0x5) found at 0xfffffff804012000
Elroy version TR4.0 (0x5) found at 0xfffffff804014000
Elroy version TR4.0 (0x5) found at 0xfffffff804016000
Elroy version TR4.0 (0x5) found at 0xfffffff804018000
Elroy version TR4.0 (0x5) found at 0xfffffff80401c000
powersw: Soft power switch support not available.
bio: create slab <bio-0> at 0
SCSI subsystem initialized
NET: Registered protocol family 2
IP route cache hash table entries: 524288 (order: 10, 4194304 bytes)
TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
NET: Registered protocol family 1
Chassis warnings not supported.
Performance monitoring counters enabled for Caribe W2 800
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
msgmni has been set to 32768
alg: No test for stdrng (krng)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
serial 0000:00:00.0: enabling device (0146 -> 0147)
0000:00:00.0: ttyS0 at MMIO 0xfffffff000000000 (irq = 65) is a 16550A
console handover: boot [ttyB0] -> real [ttyS0]
0000:00:00.0: ttyS1 at MMIO 0xfffffff000000008 (irq = 65) is a 16550A
0000:00:00.0: ttyS2 at MMIO 0xfffffff000000010 (irq = 65) is a 16550A
brd: module loaded
loop: module loaded
Linux Tulip driver version 1.1.15 (Feb 27, 2007)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21142/43 Tulip rev 65 at Port 0x80, 00:30:6e:0e:b2:5f,
IRQ 65.
sym53c8xx 0000:18:00.0: enabling device (0146 -> 0147)
sym0: <895> rev 0x2 at pci 0000:18:00.0 irq 67
sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
scsi 0:0:0:0: ABORT operation started
scsi 0:0:0:0: ABORT operation timed-out.
scsi 0:0:0:0: DEVICE RESET operation started

After that it hangs...

The smaller partion hangs even earlier:

HARD Booted.
palo ipl 1.14 root@duet Sat Apr  8 16:08:16 EDT 2006

Boot image contains:
    0/vmlinux64 6484269 bytes @ 0xa000

Information: No console specified on kernel command line. This is
normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'HOME=/ ip=dhcp console=ttyS0 TERM=vt102
palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing
64-bit kernelELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4456448 mediaptr 0x1000
Segment 1 load 00588000 size 399072 mediaptr 0x441000
Segment 2 load 005ec000 size 266374 mediaptr 0x4a3000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.29-rc3-00000-g33bfad5-dirty (tsbogend@login) (gcc
version 4.2.1) #23 Sat Feb 7 15:16:57 CET 2009
unwind_init: start = 0x404788c0, end = 0x404a53c0, entries = 11440
WARNING: Out of order unwind entry! 000000004047a400 and
000000004047a410
WARNING: Out of order unwind entry! 000000004047a410 and
000000004047a420
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00005e70 00000491 00000000 00000002 3e0f97abec371bc2 00000000
00000008 000000b2 000000b2
vers  00000202
CPUID vers 19 rev 1 (0x00000261)
capabilities 0x3d
model 9000/800/SD32000
parisc_cache_init: Only equivalent aliasing supported!
Total Memory: 8184 MB
Built 1 zonelists in Zone order, mobility grouping on.  Total pages:
2066460
Kernel command line: HOME=/ ip=dhcp console=ttyS0 TERM=vt102
palo_kernel=0/vmlinux
PID hash table entries: 4096 (order: 12, 32768 bytes)
Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
Memory: 8231168k/8380416k available (2869k kernel code, 148692k
reserved, 1434k data, 264k init)
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x000000023f800000   (8184 MB)
      .init : 0x00000000405ec000 - 0x000000004062e000   ( 264 kB)
      .data : 0x00000000403cd650 - 0x0000000040534000   (1434 kB)
      .text : 0x0000000040100000 - 0x00000000403cd650   (2869 kB)
Calibrating delay loop... 1495.04 BogoMIPS (lpj=2990080)
Security Framework initialized
Mount-cache hash table entries: 256
net_namespace: 544 bytes
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Two devices have hardware path [255].  IODC data for second device:
00404e0000abRearranging GSC cards sometimes helps
Two devices have hardware path [255].  IODC data for second device:
00404e0000abRearranging GSC cards sometimes helps
Found devices:
1. Caribe DNA Central Agent at 0xfffffffffc400000 [255] { 14, 0x0,
0x007, 0x000aa }
2. Caribe W2 800 at 0xfffffffffc47a000 [11] { 0, 0x0, 0x5e7, 0x00004 }
3. Caribe W2 800 at 0xfffffffffc47c000 [12] { 0, 0x0, 0x5e7, 0x00004 }
4. Caribe W2 800 at 0xfffffffffc47e000 [13] { 0, 0x0, 0x5e7, 0x00004 }
5. Memory at 0xfffffffffc405000 [5] { 1, 0x0, 0x0a8, 0x00009 }
6. REO I/O BC Merced Port at 0xfffffff888000000 [0] { 7, 0x0, 0x804,
0x0000c }
7. Elroy PCI Bridge at 0xfffffff884000000 [0/0] { 13, 0x0, 0x782,
0x0000a }
8. Elroy PCI Bridge at 0xfffffff884002000 [0/1] { 13, 0x0, 0x782,
0x0000a }
9. Elroy PCI Bridge at 0xfffffff884004000 [0/2] { 13, 0x0, 0x782,
0x0000a }
10. Elroy PCI Bridge at 0xfffffff884006000 [0/3] { 13, 0x0, 0x782,
0x0000a }
11. Elroy PCI Bridge at 0xfffffff884008000 [0/4] { 13, 0x0, 0x782,
0x0000a }
12. Elroy PCI Bridge at 0xfffffff88400c000 [0/6] { 13, 0x0, 0x782,
0x0000a }
13. Elroy PCI Bridge at 0xfffffff884010000 [0/8] { 13, 0x0, 0x782,
0x0000a }
14. Elroy PCI Bridge at 0xfffffff884012000 [0/9] { 13, 0x0, 0x782,
0x0000a }
15. Elroy PCI Bridge at 0xfffffff884014000 [0/10] { 13, 0x0, 0x782,
0x0000a }
16. Elroy PCI Bridge at 0xfffffff884016000 [0/11] { 13, 0x0, 0x782,
0x0000a }
17. Elroy PCI Bridge at 0xfffffff884018000 [0/12] { 13, 0x0, 0x782,
0x0000a }
18. Elroy PCI Bridge at 0xfffffff88401c000 [0/14] { 13, 0x0, 0x782,
0x0000a }
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 12 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 13 failed with error 1
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
Setting cache flush threshold to 180000 (1 CPUs online)
SBA found REO rev 2 at 0xfffffff888000000
Elroy version TR4.0 (0x5) found at 0xfffffff884000000


First guess would be some PCI setup issues... Any hints ?


BTW. I've tried with __PAGE_OFFSET=0x10000000 and __PAGE_OFFSET=0x40000000
and it doesn't make difference. The boot logs are from a kernel with
only the following hack:

diff --git a/arch/parisc/kernel/firmware.c
b/arch/parisc/kernel/firmware.c
index 03f26bd..a3fb7ef 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -153,12 +153,14 @@ static void convert_to_wide(unsigned long *addr)
 #ifdef CONFIG_64BIT
 void __init set_firmware_width_unlocked(void)
 {
+#if 0
        int ret;

        ret = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES,
                __pa(pdc_result), 0);
        convert_to_wide(pdc_result);
        if (pdc_result[0] != NARROW_FIRMWARE)
+#endif
                parisc_narrow_firmware = 0;
 }

Thomas.

-- 
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: Hacking SuperDome
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Oh, I'm jealous now. :)

On Sat, Feb 07, 2009 at 03:29:06PM +0100, Thomas Bogendoerfer wrote:
> +#if 0
>         int ret;
> 
>         ret = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES,
>                 __pa(pdc_result), 0);
>         convert_to_wide(pdc_result);
>         if (pdc_result[0] != NARROW_FIRMWARE)
> +#endif

Yeah, this won't work on Superdome, which has no 32-bit firmware. At
this point in boot, we've got parisc_narrow_firmware set, which will
go kaboom.

We can fix this pretty easily, palo knows if it was started with 64-bit
firmware, we can just bring this into the kernel. I'll hack a patch for
palo this weekend, but you might as well continue just using what you've
got until then.

regards, Kyle
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On Sat, Feb 07, 2009 at 03:29:06PM +0100, Thomas Bogendoerfer wrote:
> The bigger partition produces following boot log:
[...]
> sym0: <895> rev 0x2 at pci 0000:18:00.0 irq 67
> sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
> sym0: SCSI BUS has been reset.
> scsi0 : sym-2.2.3
> scsi 0:0:0:0: ABORT operation started
> scsi 0:0:0:0: ABORT operation timed-out.
> scsi 0:0:0:0: DEVICE RESET operation started
> 
> After that it hangs...

Generally, this means that interrupts are broken; sym2 didn't get an
interrupt saying the command completed.

Looking through the rest of the log, I don't see any information
pertaining to interrupt setup.  I forget whether we have debug related
to interrupts, but I bet we do ...

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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On Sat, Feb 07, 2009 at 11:30:32PM -0500, Kyle McMartin wrote:
> We can fix this pretty easily, palo knows if it was started with 64-bit
> firmware, we can just bring this into the kernel. I'll hack a patch for
> palo this weekend, but you might as well continue just using what you've
> got until then.
> 

I'd forgotten how simplistic our boot protocol is... we've really got
very little way to communicate, well, anything extra, since we didn't
sanitize the other unused registers before branching to the kernel
entrypoint.

Current plan is to define an extensible v2 palo format, using a
4096-byte data page (similar to the command line) and use the top
2048-bytes for the command line (so maybe people will whinge less.)

It's ugly, but aside from doing some ELF jiggery pokery or something, or
reading the first couple instructions from the kernel, we've fairly
little choice... I've decided that since %ret0 is guaranteed to have
the start address of _stext in it, since we returned it from iplload,
I'll just 'borrow' that as a flag to use the v2 boot protocol.
(ie: if %ret0 isn't 0x10000, use v2.)

This may seem unnecessary, but really, we might as well, I seem to
recall d-i running into the command line length being an issue earlier.

regards, Kyle
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On Sun, Feb 08, 2009 at 12:05:16PM -0500, Kyle McMartin wrote:
> I'd forgotten how simplistic our boot protocol is... we've really got
> very little way to communicate, well, anything extra, since we didn't
> sanitize the other unused registers before branching to the kernel
> entrypoint.

The usual solution to this is to put a magic value in a register.  For
example, mount(2) has 0xC0ED in the upper 16 bits of the flag register.
We're not exactly short on registers, so if one of the unused ones is
set to, say 0x0c2cd240, we would know that we're using the v2 protocol.

> Current plan is to define an extensible v2 palo format, using a
> 4096-byte data page (similar to the command line) and use the top
> 2048-bytes for the command line (so maybe people will whinge less.)

Heck, we could put a pointer in the data page, and have the command line
an unlimited length.  Or make one of the unused registers be the command
line.

> It's ugly, but aside from doing some ELF jiggery pokery or something, or
> reading the first couple instructions from the kernel, we've fairly
> little choice... I've decided that since %ret0 is guaranteed to have
> the start address of _stext in it, since we returned it from iplload,
> I'll just 'borrow' that as a flag to use the v2 boot protocol.
> (ie: if %ret0 isn't 0x10000, use v2.)

I'm fully in support, as long as a new palo will boot an old kernel, and
vice versa.  This doesn't seem like it would be too hard.

(Obviously, if you're using an old palo or an old kernel, you have to
live with the limitations of the v1 protocol).

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: add ftrace (function and graph tracer) functionality
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This patch adds the ftrace debugging functionality to the parisc kernel.
It will currently only work with 64bit kernels, because the gcc options -pg
and -ffunction-sections can't be enabled at the same time and -ffunction-sections
is still needed to be able to link 32bit kernels.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index aacf11d..7fbe029 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -9,6 +9,9 @@ config PARISC
 	def_bool y
 	select HAVE_IDE
 	select HAVE_OPROFILE
+	select HAVE_FUNCTION_TRACER if 64BIT
+	select HAVE_FUNCTION_GRAPH_TRACER if 64BIT
+	select HAVE_FUNCTION_TRACE_MCOUNT_TEST if 64BIT
 	select RTC_CLASS
 	select RTC_DRV_PARISC
 	select INIT_ALL_POSSIBLE
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 0d42827..da6f669 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -56,7 +56,9 @@ cflags-y	+= -mdisable-fpregs
 
 # Without this, "ld -r" results in .text sections that are too big
 # (> 0x40000) for branches to reach stubs.
-cflags-y	+= -ffunction-sections
+ifndef CONFIG_FUNCTION_TRACER
+  cflags-y	+= -ffunction-sections
+endif
 
 # select which processor to optimise for
 cflags-$(CONFIG_PA7100)		+= -march=1.1 -mschedule=7100
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 016d3fc..8be0267 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -11,6 +11,18 @@ obj-y	     	:= cache.o pacache.o setup.o traps.o time.o irq.o \
 		   process.o processor.o pdc_cons.o pdc_chassis.o unwind.o \
 		   topology.o
 
+ifdef CONFIG_FUNCTION_TRACER
+# Do not profile debug and lowlevel utilities
+CFLAGS_REMOVE_ftrace.o = -pg
+CFLAGS_REMOVE_cache.o = -pg
+CFLAGS_REMOVE_irq.o = -pg
+CFLAGS_REMOVE_pacache.o = -pg
+CFLAGS_REMOVE_perf.o = -pg
+CFLAGS_REMOVE_traps.o = -pg
+CFLAGS_REMOVE_unaligned.o = -pg
+CFLAGS_REMOVE_unwind.o = -pg
+endif
+
 obj-$(CONFIG_SMP)	+= smp.o
 obj-$(CONFIG_PA11)	+= pci-dma.o
 obj-$(CONFIG_PCI)	+= pci.o
@@ -18,3 +30,5 @@ obj-$(CONFIG_MODULES)	+= module.o
 obj-$(CONFIG_64BIT)	+= binfmt_elf32.o sys_parisc32.o signal32.o
 # only supported for PCX-W/U in 64-bit mode at the moment
 obj-$(CONFIG_64BIT)	+= perf.o perf_asm.o
+obj-$(CONFIG_FUNCTION_TRACER)		+= ftrace.o
+obj-$(CONFIG_FUNCTION_GRAPH_TRACER)	+= ftrace.o
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 0f7ff93..b2e163c 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -2176,6 +2176,33 @@ syscall_do_resched:
 ENDPROC(syscall_exit)
 
 
+#ifdef CONFIG_FUNCTION_TRACER
+	.import ftrace_function_trampoline,code
+ENTRY(_mcount)
+	copy	%r3, %arg2
+	b	ftrace_function_trampoline
+	nop
+ENDPROC(_mcount)
+
+ENTRY(return_to_handler)
+	load32	return_trampoline, %rp
+	copy	%ret0, %arg0
+	copy	%ret1, %arg1
+	b	ftrace_return_to_handler
+	nop
+return_trampoline:
+	copy	%ret0, %rp
+	copy	%r23, %ret0
+	copy	%r24, %ret1
+
+.globl ftrace_stub
+ftrace_stub:
+	bv	%r0(%rp)
+	nop
+ENDPROC(return_to_handler)
+#endif	/* CONFIG_FUNCTION_TRACER */
+
+
 get_register:
 	/*
 	 * get_register is used by the non access tlb miss handlers to
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index 0eecfbb..df65366 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -153,5 +153,10 @@ EXPORT_SYMBOL(node_data);
 EXPORT_SYMBOL(pfnnid_map);
 #endif
 
+#ifdef CONFIG_FUNCTION_TRACER
+extern void _mcount(void);
+EXPORT_SYMBOL(_mcount);
+#endif
+
 /* from pacache.S -- needed for copy_page */
 EXPORT_SYMBOL(copy_user_page_asm);
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 9995d7e..8545f2e 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -31,6 +31,7 @@
 #include <linux/err.h>
 #include <linux/delay.h>
 #include <linux/bitops.h>
+#include <linux/ftrace.h>
 
 #include <asm/system.h>
 #include <asm/atomic.h>
@@ -120,7 +121,7 @@ halt_processor(void)
 }
 
 
-irqreturn_t
+irqreturn_t __irq_entry
 ipi_interrupt(int irq, void *dev_id) 
 {
 	int this_cpu = smp_processor_id();
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 9d46c43..badaad9 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -24,6 +24,7 @@
 #include <linux/profile.h>
 #include <linux/clocksource.h>
 #include <linux/platform_device.h>
+#include <linux/ftrace.h>
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
@@ -53,7 +54,7 @@ static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
  * held off for an arbitrarily long period of time by interrupts being
  * disabled, so we may miss one or more ticks.
  */
-irqreturn_t timer_interrupt(int irq, void *dev_id)
+irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 {
 	unsigned long now;
 	unsigned long next_tick;
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index ba658d2..7bf122a 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -494,7 +494,7 @@ void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long o
 	panic(msg);
 }
 
-void handle_interruption(int code, struct pt_regs *regs)
+void notrace handle_interruption(int code, struct pt_regs *regs)
 {
 	unsigned long fault_address = 0;
 	unsigned long fault_space = 0;
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 1a3b6cc..fd2cc4f 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -54,6 +54,8 @@ SECTIONS
 		TEXT_TEXT
 		SCHED_TEXT
 		LOCK_TEXT
+		KPROBES_TEXT
+		IRQENTRY_TEXT
 		*(.text.do_softirq)
 		*(.text.sys_exit)
 		*(.text.do_sigaltstack)
diff -up ./arch/parisc/include/asm/ftrace.h.org ./arch/parisc/include/asm/ftrace.h
--- a/arch/parisc/include/asm/ftrace.h.org	2009-02-08 23:57:16.000000000 +0100
+++ b/arch/parisc/include/asm/ftrace.h	2009-02-08 23:45:39.000000000 +0100
@@ -0,0 +1,25 @@
+#ifndef _ASM_PARISC_FTRACE_H
+#define _ASM_PARISC_FTRACE_H
+
+#ifndef __ASSEMBLY__
+extern void mcount(void);
+
+/*
+ * Stack of return addresses for functions of a thread.
+ * Used in struct thread_info
+ */
+struct ftrace_ret_stack {
+	unsigned long ret;
+	unsigned long func;
+	unsigned long long calltime;
+};
+
+/*
+ * Primary handler of a function return.
+ * It relays on ftrace_return_to_handler.
+ * Defined in entry.S
+ */
+extern void return_to_handler(void);
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_PARISC_FTRACE_H */
diff -up ./arch/parisc/kernel/ftrace.c.org ./arch/parisc/kernel/ftrace.c
--- a/arch/parisc/kernel/ftrace.c.org	2009-02-08 23:57:10.000000000 +0100
+++ b/arch/parisc/kernel/ftrace.c	2009-02-09 00:10:24.000000000 +0100
@@ -0,0 +1,185 @@
+/*
+ * Code for tracing calls in Linux kernel.
+ * Copyright (C) 2009 Helge Deller <deller@gmx.de>
+ *
+ * based on code for x86 which is:
+ * Copyright (C) 2007-2008 Steven Rostedt <srostedt@redhat.com>
+ *
+ * future possible enhancements:
+ * 	- add CONFIG_DYNAMIC_FTRACE
+ *	- add CONFIG_STACK_TRACER
+ */
+
+#include <linux/init.h>
+#include <linux/ftrace.h>
+
+#include <asm/sections.h>
+#include <asm/ftrace.h>
+
+
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+
+/* Add a function return address to the trace stack on thread info.*/
+static int push_return_trace(unsigned long ret, unsigned long long time,
+				unsigned long func, int *depth)
+{
+	int index;
+
+	if (!current->ret_stack)
+		return -EBUSY;
+
+	/* The return trace stack is full */
+	if (current->curr_ret_stack == FTRACE_RETFUNC_DEPTH - 1) {
+		atomic_inc(&current->trace_overrun);
+		return -EBUSY;
+	}
+
+	index = ++current->curr_ret_stack;
+	barrier();
+	current->ret_stack[index].ret = ret;
+	current->ret_stack[index].func = func;
+	current->ret_stack[index].calltime = time;
+	*depth = index;
+
+	return 0;
+}
+
+/* Retrieve a function return address to the trace stack on thread info.*/
+static void pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret)
+{
+	int index;
+
+	index = current->curr_ret_stack;
+
+	if (unlikely(index < 0)) {
+		ftrace_graph_stop();
+		WARN_ON(1);
+		/* Might as well panic, otherwise we have no where to go */
+		*ret = (unsigned long)
+			dereference_function_descriptor(&panic);
+		return;
+	}
+
+	*ret = current->ret_stack[index].ret;
+	trace->func = current->ret_stack[index].func;
+	trace->calltime = current->ret_stack[index].calltime;
+	trace->overrun = atomic_read(&current->trace_overrun);
+	trace->depth = index;
+	barrier();
+	current->curr_ret_stack--;
+
+}
+
+/*
+ * Send the trace to the ring-buffer.
+ * @return the original return address.
+ */
+unsigned long ftrace_return_to_handler(unsigned long retval0,
+				       unsigned long retval1)
+{
+	struct ftrace_graph_ret trace;
+	unsigned long ret;
+
+	pop_return_trace(&trace, &ret);
+	trace.rettime = cpu_clock(raw_smp_processor_id());
+	ftrace_graph_return(&trace);
+
+	if (unlikely(!ret)) {
+		ftrace_graph_stop();
+		WARN_ON(1);
+		/* Might as well panic. What else to do? */
+		ret = (unsigned long)
+			dereference_function_descriptor(&panic);
+	}
+
+	/* HACK: we hand over the old functions' return values
+	   in %r23 and %r24. Assembly in entry.S will take care
+	   and move those to their final registers %ret0 and %ret1 */
+	asm( "copy %0, %%r23 \n\t"
+	     "copy %1, %%r24 \n" : : "r" (retval0), "r" (retval1) );
+
+	return ret;
+}
+
+/*
+ * Hook the return address and push it in the stack of return addrs
+ * in current thread info.
+ */
+void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
+{
+	unsigned long old;
+	unsigned long long calltime;
+	struct ftrace_graph_ent trace;
+
+	if (unlikely(atomic_read(&current->tracing_graph_pause)))
+		return;
+
+	old = *parent;
+	*parent = (unsigned long)
+		  dereference_function_descriptor(&return_to_handler);
+
+	if (unlikely(!__kernel_text_address(old))) {
+		ftrace_graph_stop();
+		*parent = old;
+		WARN_ON(1);
+		return;
+	}
+
+	calltime = cpu_clock(raw_smp_processor_id());
+
+	if (push_return_trace(old, calltime,
+				self_addr, &trace.depth) == -EBUSY) {
+		*parent = old;
+		return;
+	}
+
+	trace.func = self_addr;
+
+	/* Only trace if the calling function expects to */
+	if (!ftrace_graph_entry(&trace)) {
+		current->curr_ret_stack--;
+		*parent = old;
+	}
+}
+
+#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
+
+
+void ftrace_function_trampoline(unsigned long parent,
+				unsigned long self_addr,
+				unsigned long org_sp_gr3)
+{
+	extern ftrace_func_t ftrace_trace_function;
+
+	if (function_trace_stop)
+		return;
+
+	if (ftrace_trace_function != ftrace_stub) {
+		ftrace_trace_function(parent, self_addr);
+		return;
+	}
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+	if (ftrace_graph_entry && ftrace_graph_return) {
+		unsigned long sp;
+		unsigned long *parent_rp;
+
+                asm volatile ("copy %%r30, %0" : "=r"(sp));
+		/* sanity check: is stack pointer which we got from
+		   assembler function in entry.S in a reasonable
+		   range compared to current stack pointer? */
+		if ((sp - org_sp_gr3) > 0x400)
+			return;
+
+		/* calculate pointer to %rp in stack */
+		parent_rp = (unsigned long *) org_sp_gr3 - 0x10;
+		/* sanity check: parent_rp should hold parent */
+		if (*parent_rp != parent)
+			return;
+		
+		prepare_ftrace_return(parent_rp, self_addr);
+		return;
+	}
+#endif
+}
+

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Subject: Re: [PATCH] parisc: add ftrace (function and graph tracer) functionality
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> It will currently only work with 64bit kernels, because the gcc options -pg
> and -ffunction-sections can't be enabled at the same time and -ffunction-sections
> is still needed to be able to link 32bit kernels.

I have done some testing.  As far as I can tell, -pg works with
-ffunction-sections on hppa-unknown-linux-gnu and hppa64-hp-hpux11.
hppa2.0w-hp-hpux11 doesn't support -ffunction-sections.  So, I think
we should propose that the code that disables -ffunction-sections
with -pg be removed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [PATCH] parisc: add ftrace (function and graph tracer) functionality
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My memory is fuzzy and I had to dig through the archives a bit, but I 
seem to recall that it used to be that -pg will not work WITHOUT 
-ffunction-sections on 32-bit, because the call to _mcount was done 
using b,l. Dave and I fixed this in gcc in 2003 though.

I did find another thread about this here: 
http://gcc.gnu.org/ml/gcc-help/2008-11/msg00128.html

The followup replies from Ian Taylor and Jeff Law concurs with what you 
said below, but it looks like nothing has been done (yet?)

randolph

John David Anglin wrote:
>> It will currently only work with 64bit kernels, because the gcc options -pg
>> and -ffunction-sections can't be enabled at the same time and -ffunction-sections
>> is still needed to be able to link 32bit kernels.
>>     
>
> I have done some testing.  As far as I can tell, -pg works with
> -ffunction-sections on hppa-unknown-linux-gnu and hppa64-hp-hpux11.
> hppa2.0w-hp-hpux11 doesn't support -ffunction-sections.  So, I think
> we should propose that the code that disables -ffunction-sections
> with -pg be removed.
>
> Dave
>   

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Subject: Re: [PATCH] parisc: add ftrace (function and graph tracer) functionality
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The call to _mcount is done with a standard call pattern that will
generate a long call if necessary.  So, -ffunction-sections isn't
needed for profiling large objects.

There are two cases for the profile counters.  On linux,
NO_DEFERRED_PROFILE_COUNTERS is 1.  glibc allocates the profile counters.
On the other PA targets, the output of the profile counters is deferred
so that we don't have to do any section switching.

Dave

> My memory is fuzzy and I had to dig through the archives a bit, but I 
> seem to recall that it used to be that -pg will not work WITHOUT 
> -ffunction-sections on 32-bit, because the call to _mcount was done 
> using b,l. Dave and I fixed this in gcc in 2003 though.
> 
> I did find another thread about this here: 
> http://gcc.gnu.org/ml/gcc-help/2008-11/msg00128.html
> 
> The followup replies from Ian Taylor and Jeff Law concurs with what you 
> said below, but it looks like nothing has been done (yet?)
> 
> randolph
> 
> John David Anglin wrote:
> >> It will currently only work with 64bit kernels, because the gcc options -pg
> >> and -ffunction-sections can't be enabled at the same time and -ffunction-sections
> >> is still needed to be able to link 32bit kernels.
> >>     
> >
> > I have done some testing.  As far as I can tell, -pg works with
> > -ffunction-sections on hppa-unknown-linux-gnu and hppa64-hp-hpux11.
> > hppa2.0w-hp-hpux11 doesn't support -ffunction-sections.  So, I think
> > we should propose that the code that disables -ffunction-sections
> > with -pg be removed.
> >
> > Dave
> >   
> 


-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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John David Anglin wrote:
>> It will currently only work with 64bit kernels, because the gcc options -pg
>> and -ffunction-sections can't be enabled at the same time and -ffunction-sections
>> is still needed to be able to link 32bit kernels.
> 
> I have done some testing.  As far as I can tell, -pg works with
> -ffunction-sections on hppa-unknown-linux-gnu and hppa64-hp-hpux11.

That's great!
Which gcc version did you tested?
For me, (cross-compiler) hppa-linux-gcc 3.3.4 didn't linked without -ffunction-sections.

> hppa2.0w-hp-hpux11 doesn't support -ffunction-sections.  So, I think
> we should propose that the code that disables -ffunction-sections
> with -pg be removed.

In principle no objections from my side. Nevertheless we really need to make sure.
E.g. we'd need to increase the minimal required compiler version for kernel on 32bit.
Did you tested modules (on 32bit) as well, e.g. the xfs module which had the
relocation problems?

Best regards,
Helge
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From - Thu Nov 08 21:03:38 2018
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> John David Anglin wrote:
> >> It will currently only work with 64bit kernels, because the gcc options -pg
> >> and -ffunction-sections can't be enabled at the same time and -ffunction-sections
> >> is still needed to be able to link 32bit kernels.
> > 
> > I have done some testing.  As far as I can tell, -pg works with
> > -ffunction-sections on hppa-unknown-linux-gnu and hppa64-hp-hpux11.
> 
> That's great!
> Which gcc version did you tested?

4.4.0.

> For me, (cross-compiler) hppa-linux-gcc 3.3.4 didn't linked without -ffunction-sections.

There's been quite a few change since 3.3.4.  In principle, -ffunction-sections
shouldn't be needed to compile and link the kernel although it may produce
better code.  Long calls should be generated automatically if a pc-relative
branch can't reach the stub table.  As I said, ld -r is not supposed to merge
.text sections.

If I remember correctly from some previous discussions, 3.3.4 is too
old.  There was a bug in the handling of weak functions affecting kernel
builds.

Currently, the only supported GCC branches are 4.3 and 4.4.  The 4.2
branch will be closed soon and no further releases will be done with
this branch.  4.4 will be forked when the number of P1 bugs reaches
zero.  From my standpoint, it would be best to test with 4.3 or 4.4.
I think the major linux vendors are using 4.3 for their current
releases.

> Did you tested modules (on 32bit) as well, e.g. the xfs module which had the
> relocation problems?

No, I just did a build and check of gcc, and tested a testsuite program
to see that it ran correctly with -pg and -ffunctions-sections (i.e., I
ran gprof using the gmon.out).  I also visually inspected the generated
assembly code.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:38 2018
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On Sat, Feb 07, 2009 at 03:29:06PM +0100, Thomas Bogendoerfer wrote:
> Hi,
> 
> thanks to Madze, I've now access to a HP Superdome;-)

Wow...that's so cool...I didn't this would happen. :)

> The bigger partition produces following boot log:
...

> The smaller partion hangs even earlier:
> 
> HARD Booted.
> palo ipl 1.14 root@duet Sat Apr  8 16:08:16 EDT 2006
> 
> Boot image contains:
>     0/vmlinux64 6484269 bytes @ 0xa000
...
> SBA found REO rev 2 at 0xfffffff888000000
> Elroy version TR4.0 (0x5) found at 0xfffffff884000000
> 
> 
> First guess would be some PCI setup issues... Any hints ?

Look for HPMC's. The console can't keep up with the kernel in general.
When an HPMC occurs, some of the output can get stranded.

I would add "initcall_debug=1" to boot parameters. See kernel/main.c.
Possible add a mdelay(100) after each initcall.

Since Tulip configured properly, I'm going to assume PCI resources
were properly assigned and all PCI Busses enumerated. PCI support
shouldn't be any different than for other PAT PDC machines.

hth,
grant
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From - Thu Nov 08 21:03:38 2018
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On Wed, Feb 11, 2009 at 12:23:12AM -0700, Grant Grundler wrote:
> > First guess would be some PCI setup issues... Any hints ?
> 
> Look for HPMC's. The console can't keep up with the kernel in general.
> When an HPMC occurs, some of the output can get stranded.

never saw an HPMC, but I'm sure it's because lots of output gets lost...

I've done some hacking yesterday and it looks like the basic
problem is, that REO isn't handled properly. As a start it would
be good to know, if the used IOC_IKE_OFFSET in sba_iommu.c is really
correct...

Thomas.

-- 
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On Wed, Feb 11, 2009 at 11:00:52AM +0100, Thomas Bogendoerfer wrote:
> On Wed, Feb 11, 2009 at 12:23:12AM -0700, Grant Grundler wrote:
> > > First guess would be some PCI setup issues... Any hints ?
> > 
> > Look for HPMC's. The console can't keep up with the kernel in general.
> > When an HPMC occurs, some of the output can get stranded.
> 
> never saw an HPMC, but I'm sure it's because lots of output gets lost...
> 
> I've done some hacking yesterday and it looks like the basic
> problem is, that REO isn't handled properly. As a start it would
> be good to know, if the used IOC_IKE_OFFSET in sba_iommu.c is really
> correct...

I've worked my contacts who're still at HP, and can confirm that REO is
basically the same as IKE.  While the terminology has changed, function
0 is the SBA, function 2 is IOC 0 and function 3 is IOC 1, just as with
Ike.  The Rope Control registers are offset in the 0x200 range, the
IOTLB registers are in the 0x300 range and ROPE_CONFIG is at 0x40.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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On Wed, Feb 11, 2009 at 11:00:52AM +0100, Thomas Bogendoerfer wrote:
> On Wed, Feb 11, 2009 at 12:23:12AM -0700, Grant Grundler wrote:
> > > First guess would be some PCI setup issues... Any hints ?
> > 
> > Look for HPMC's. The console can't keep up with the kernel in general.
> > When an HPMC occurs, some of the output can get stranded.
> 
> never saw an HPMC, but I'm sure it's because lots of output gets lost...

I only check the "ser pim" output at PDC prompt.
I don't know any other reliable way. Even with HPUX.

grant

> 
> I've done some hacking yesterday and it looks like the basic
> problem is, that REO isn't handled properly. As a start it would
> be good to know, if the used IOC_IKE_OFFSET in sba_iommu.c is really
> correct...
> 
> Thomas.
> 
> -- 
> Crap can work. Given enough thrust pigs will fly, but it's not necessary a
> good idea.                                                [ RFC1925, 2.3 ]
> --
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On Wed, Feb 11, 2009 at 12:23:12AM -0700, Grant Grundler wrote:
> Look for HPMC's. The console can't keep up with the kernel in general.
> When an HPMC occurs, some of the output can get stranded.
> 
> I would add "initcall_debug=1" to boot parameters. See kernel/main.c.
> Possible add a mdelay(100) after each initcall.
> 
> Since Tulip configured properly, I'm going to assume PCI resources
> were properly assigned and all PCI Busses enumerated. PCI support
> shouldn't be any different than for other PAT PDC machines.
> 

The interrupt assignment looks a little wonky, don't you think?
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From - Thu Nov 08 21:03:38 2018
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Subject: Re: Hacking SuperDome
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On Wed, Feb 11, 2009 at 01:14:25PM -0500, Kyle McMartin wrote:
> > I would add "initcall_debug=1" to boot parameters. See kernel/main.c.
> > Possible add a mdelay(100) after each initcall.
> > 
> > Since Tulip configured properly, I'm going to assume PCI resources
> > were properly assigned and all PCI Busses enumerated. PCI support
> > shouldn't be any different than for other PAT PDC machines.
> > 
> 
> The interrupt assignment looks a little wonky, don't you think?

Try this?

diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 7beffca..25eaf6e 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -153,8 +153,8 @@
 
 /* "local" compile flags */
 #undef PCI_BRIDGE_FUNCS
-#undef DEBUG_IOSAPIC
-#undef DEBUG_IOSAPIC_IRT
+#define DEBUG_IOSAPIC
+#define DEBUG_IOSAPIC_IRT
 
 
 #ifdef DEBUG_IOSAPIC
@@ -479,7 +479,7 @@ iosapic_xlate_pin(struct iosapic_info *isi, struct pci_dev *pcidev)
 	pci_read_config_byte(pcidev, PCI_INTERRUPT_PIN, &intr_pin);
 
 	DBG_IRT("iosapic_xlate_pin(%s) SLOT %d pin %d\n",
-		pcidev->slot_name, PCI_SLOT(pcidev->devfn), intr_pin);
+		pci_slot_name(pcidev->slot), PCI_SLOT(pcidev->devfn), intr_pin);
 
 	if (intr_pin == 0) {
 		/* The device does NOT support/use IRQ lines.  */
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From - Thu Nov 08 21:03:39 2018
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On Wed, Feb 11, 2009 at 01:14:25PM -0500, Kyle McMartin wrote:
> On Wed, Feb 11, 2009 at 12:23:12AM -0700, Grant Grundler wrote:
> > Look for HPMC's. The console can't keep up with the kernel in general.
> > When an HPMC occurs, some of the output can get stranded.
> > 
> > I would add "initcall_debug=1" to boot parameters. See kernel/main.c.
> > Possible add a mdelay(100) after each initcall.
> > 
> > Since Tulip configured properly, I'm going to assume PCI resources
> > were properly assigned and all PCI Busses enumerated. PCI support
> > shouldn't be any different than for other PAT PDC machines.
> > 
> 
> The interrupt assignment looks a little wonky, don't you think?

Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
serial 0000:00:00.0: enabling device (0146 -> 0147)
0000:00:00.0: ttyS0 at MMIO 0xfffffff000000000 (irq = 65) is a 16550A
console handover: boot [ttyB0] -> real [ttyS0]
0000:00:00.0: ttyS1 at MMIO 0xfffffff000000008 (irq = 65) is a 16550A
0000:00:00.0: ttyS2 at MMIO 0xfffffff000000010 (irq = 65) is a 16550A
brd: module loaded
loop: module loaded
Linux Tulip driver version 1.1.15 (Feb 27, 2007)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21142/43 Tulip rev 65 at Port 0x80, 00:30:6e:0e:b2:5f,
IRQ 65.


"IRQ 65" on it's own could be ok.
The fact the serial port and tulip share the IRQ seems odd.

Your suggestion to enable iosapic debug code is a good one.

hth,
grant
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> Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> serial 0000:00:00.0: enabling device (0146 -> 0147)
> 0000:00:00.0: ttyS0 at MMIO 0xfffffff000000000 (irq = 65) is a 16550A
> console handover: boot [ttyB0] -> real [ttyS0]
> 0000:00:00.0: ttyS1 at MMIO 0xfffffff000000008 (irq = 65) is a 16550A
> 0000:00:00.0: ttyS2 at MMIO 0xfffffff000000010 (irq = 65) is a 16550A
> brd: module loaded
> loop: module loaded
> Linux Tulip driver version 1.1.15 (Feb 27, 2007)
> tulip0: no phy info, aborting mtable build
> tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
> eth0: Digital DS21142/43 Tulip rev 65 at Port 0x80, 00:30:6e:0e:b2:5f,

Can you try with CONFIG_GSC turned off? irq 65 *shouldn't* be occuring
there, nor should it be occuring period since with CONFIG_GSC set it's
the IPI irq...
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From - Thu Nov 08 21:03:39 2018
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From - Thu Nov 08 21:03:39 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [RFC] pthread/signal problems on hppa (ruby1.9 problems)
Date: Fri, 13 Feb 2009 01:43:37 +0100
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Cc: Lucas Nussbaum <lucas@lucas-nussbaum.net>
To: linux-parisc <linux-parisc@vger.kernel.org>,
	Carlos O'Donell <carlos@systemhalted.org>,
	John David Anglin <dave@hiauly1.hia.nrc.ca>,
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As you know we sometimes still see problems with signal handling with
multithreaded programs on hppa.
Up to now the assumption was, that signals were delivered to wrong threads/processes, which I now think is wrong.

We see exactly this kind of signal/threading problems while running the testcase when building the ruby1.9 package.
The test "test_thread.rb" will just hang.
If you want to reproduce the problem it's easy. Just get ruby1.9 source, run dpkg-buildpackage 
and you see it will hang while running the test_thread.rb testcase.

I asked Lucas if he could reduce the testcase, and his testcase is below. Just save this ruby program
as "rubytest.rb" and run it with ruby1.9, e.g. "ruby1.9 testcase.rb":
<----->
#!/usr/bin/ruby1.9
out = IO.popen("ruby1.9 -e 'STDERR.reopen(STDOUT)' -e 'at_exit{Process.kill(:INT, $$); loop{}}'") {|f| f.read }
<----->

The strace files for hppa and i386 are downloadable here: (The i386 version succeeds/finishes, while hppa hangs)
http://userweb.kernel.org/~deller/ruby1.9.bug/output.hppa.log
http://userweb.kernel.org/~deller/ruby1.9.bug/output.i386.log

This is what I think (somewhat simplified) happens:
a) The program starts, sets signal handlers (in this case for SIGINT).
b) The program calls clone().
c) The child thread unblocks SIGINT delivery.
d) The parent thread blocks SIGINT delivery.
e) The parent thread sends itself the SIGINT signal, aka kill(parent_pid, SIGINT)
f) Since parent thread blocked SIGINT signals to itself, this will now happen:
	- on i386: The child thread receives the signal (instead of the parent thread) and stops program execution successfully.
	- on hppa: Neither child nor parent threads receives the signal, both will just hang.

This is the example with i386:
rt_sigaction(SIGINT, {0x8048555, [], SA_SIGINFO}, {SIG_DFL}, 8) = 0
clone(Process 30263 attached (waiting for parent)
Process 30263 resumed (parent 30262 ready)
child_stack=0x804b904, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM) = 30263
[pid 30263] rt_sigprocmask(SIG_UNBLOCK, [INT], [], 8) = 0
[pid 30262] rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0
[pid 30262] getpid()                    = 30262
[pid 30262] kill(30262, SIGINT)         = 0
[pid 30263] --- SIGINT (Interrupt) @ 0 (0) ---
[pid 30263] exit_group(1)               = ?
<sucessfully finished>

and here with hppa:
rt_sigaction(SIGINT, {0x8048555, [], SA_SIGINFO}, {SIG_DFL}, 8) = 0
clone(Process 30272 attached (waiting for parent)
Process 30272 resumed (parent 30271 ready)
child_stack=0x804b904, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_SYSVSEM) = 30272
[pid 30272] rt_sigprocmask(SIG_UNBLOCK, [INT], [], 8) = 0
[pid 30271] rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0
[pid 30271] getpid()                    = 30271
[pid 30271] kill(30271, SIGINT)         = 0
<no SIGINT is delivered, child and parent just hang>

The main question is now, why i386 and hppa differs in how they behave on signal delivery, or 
rephrased: why does i386 receives the SIGINT while hppa doesn't ?

My debugging seem to indicate that the only reason is due to the CLONE_THREAD flag in clone().
ruby1.9 on hppa does _not_ set this flag, while ruby1.9 on i386 does.

I wrote a small hacked-up test program, which is available here:
http://userweb.kernel.org/~deller/ruby1.9.bug/signal.c
With this test program I can reproduce the same (wrong) behaviour on i386 as I see on hppa.
Just change the "#if 0" to "#if 1" to switch between with/without CLONE_THREAD.

Since the clone() syscall in ruby is probably invoked by pthread_create(), I hacked together
this linuxthreads-patch for glibc: http://userweb.kernel.org/~deller/ruby1.9.bug/local-linuxthreads-CLONE_THREAD.diff
It's probably wrong though...(!!)

This information about CLONE_THREAD in the clone() manpage is pretty interesting and describes
what I was seeing:
              If kill(2) is used to send a signal to a thread  group,  and  the  thread  group  has
              installed  a handler for the signal, then the handler will be invoked in exactly one,
              arbitrarily selected member of the thread group that has not blocked the signal.   If
              multiple  threads  in  a  group  are waiting to accept the same signal using sigwait-
              info(2), the kernel will arbitrarily select one of these threads to receive a  signal
              sent using kill(2).
So, the behavior on i386 (which uses CLONE_THREAD) seems to be correct and on hppa, since we don't use
CLONE_THREAD, we behave correctly as well, just sadly not as the ruby1.9 author would have expected when
using pthread_create() and sending the own thread a signal...

Maybe we just need to add CLONE_THREAD to hppa/linuxthreads as well?
Your ideas/opinions?

Regards, Helge
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From - Thu Nov 08 21:03:39 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: [RFC] pthread/signal problems on hppa (ruby1.9 problems)
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On Fri, Feb 13, 2009 at 01:43:37AM +0100, Helge Deller wrote:
> child_stack=0x804b904, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM) = 30263

> and here with hppa:
> child_stack=0x804b904, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_SYSVSEM) = 30272

Somewhat preturbed by this. This appears to be the flags set by the
respective nptl and linuxthreads code paths. I thought Dann Frazier
said that NPTL hadn't helped? Perhaps we still have bugs in our NPTL
code... :/

(See CLONE_SIGNAL in nptl/$mumble.c, versus the annotate of the file
 you've patched in linuxthreads...)

Would be curious to see what happens on linuxthreads-i386...
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From - Thu Nov 08 21:03:39 2018
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From: tsbogend@alpha.franken.de (Thomas Bogendoerfer)
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Subject: Re: Hacking SuperDome
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On Wed, Feb 11, 2009 at 07:36:28PM -0500, Kyle McMartin wrote:
> [...]

I've disabled GSC and applied the iosapic debug patch. Below
are the boot logs of both partitions.

28 CPU partition:

Linux version 2.6.29-rc3-00000-g33bfad5-dirty (tsbogend@login) (gcc
version 4.2.1) #59 Fri Feb 13 21:31:17 CET 2009
unwind_init: start = 0x404718c0, end = 0x4049da80, entries = 11292
WARNING: Out of order unwind entry! 00000000404733d0 and
00000000404733e0
WARNING: Out of order unwind entry! 00000000404733e0 and
00000000404733f0
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00005e70 00000491 00000000 00000002 3e0f97abec371bc2 00000000
00000008 000000b2 000000b2
vers  00000202
CPUID vers 19 rev 1 (0x00000261)
capabilities 0x3d
model 9000/800/SD32000
parisc_cache_init: Only equivalent aliasing supported!
Memory Ranges:
 0) Start 0x0000000000000000 End 0x00000007ffffffff Size  32768 MB
 1) Start 0x0000000800000000 End 0x00000009ffffffff Size   8192 MB
 2) Start 0x0000000a00000000 End 0x0000000bffffffff Size   8192 MB
 3) Start 0x0000000c00000000 End 0x0000000df7ffffff Size   8064 MB
Total Memory: 57216 MB
Built 4 zonelists in Zone order, mobility grouping on.  Total pages:
14447040
Kernel command line: HOME=/ ip=dhcp console=ttyS0 TERM=vt102
palo_kernel=0/vmlinux
PID hash table entries: 4096 (order: 12, 32768 bytes)
Dentry cache hash table entries: 8388608 (order: 14, 67108864 bytes)
Inode-cache hash table entries: 4194304 (order: 13, 33554432 bytes)
Memory: 57567828k/58589184k available (2850k kernel code, 1019292k
reserved, 1413k data, 164k init)
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x0000000e38000000   (57216 MB)
      .init : 0x00000000405cc000 - 0x00000000405f5000   ( 164 kB)
      .data : 0x00000000403c8828 - 0x000000004052a000   (1413 kB)
      .text : 0x0000000040100000 - 0x00000000403c8828   (2850 kB)
Calibrating delay loop... 1495.04 BogoMIPS (lpj=2990080)
Security Framework initialized
Mount-cache hash table entries: 256
net_namespace: 544 bytes
NET: Registered protocol family 16
Searching for devices...
Two devices have hardware path [255].  IODC data for second device:
00404e0000abRearranging GSC cards sometimes helps
Two devices have hardware path [255].  IODC data for second device:
00404e0000abRearranging GSC cards sometimes helps
Found devices:
1. Caribe DNA Central Agent at 0xfffffffffc000000 [255] { 14, 0x0,
0x007, 0x000aa }
2. Caribe W2 800 at 0xfffffffffc078000 [10] { 0, 0x0, 0x5e7, 0x00004 }
3. Caribe W2 800 at 0xfffffffffc07a000 [11] { 0, 0x0, 0x5e7, 0x00004 }
4. Caribe W2 800 at 0xfffffffffc07c000 [12] { 0, 0x0, 0x5e7, 0x00004 }
5. Caribe W2 800 at 0xfffffffffc07e000 [13] { 0, 0x0, 0x5e7, 0x00004 }
6. Memory at 0xfffffffffc005000 [5] { 1, 0x0, 0x0a8, 0x00009 }
7. REO I/O BC Merced Port at 0xfffffff808000000 [0] { 7, 0x0, 0x804,
0x0000c }
8. Elroy PCI Bridge at 0xfffffff804000000 [0/0] { 13, 0x0, 0x782,
0x0000a }
9. Elroy PCI Bridge at 0xfffffff804002000 [0/1] { 13, 0x0, 0x782,
0x0000a }
10. Elroy PCI Bridge at 0xfffffff804004000 [0/2] { 13, 0x0, 0x782,
0x0000a }
11. Elroy PCI Bridge at 0xfffffff804006000 [0/3] { 13, 0x0, 0x782,
0x0000a }
12. Elroy PCI Bridge at 0xfffffff804008000 [0/4] { 13, 0x0, 0x782,
0x0000a }
13. Elroy PCI Bridge at 0xfffffff80400c000 [0/6] { 13, 0x0, 0x782,
0x0000a }
14. Elroy PCI Bridge at 0xfffffff804010000 [0/8] { 13, 0x0, 0x782,
0x0000a }
15. Elroy PCI Bridge at 0xfffffff804012000 [0/9] { 13, 0x0, 0x782,
0x0000a }
16. Elroy PCI Bridge at 0xfffffff804014000 [0/10] { 13, 0x0, 0x782,
0x0000a }
17. Elroy PCI Bridge at 0xfffffff804016000 [0/11] { 13, 0x0, 0x782,
0x0000a }
18. Elroy PCI Bridge at 0xfffffff804018000 [0/12] { 13, 0x0, 0x782,
0x0000a }
19. Elroy PCI Bridge at 0xfffffff80401c000 [0/14] { 13, 0x0, 0x782,
0x0000a }
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 11 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 12 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 13 failed with error 1
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
Setting cache flush threshold to 180000 (1 CPUs online)
iosapic_init()
calling get_irt_size (cell 0)
get_irt_size: 0
pdc_pat_get_irt: 0
iosapic Interrupt Routing Table (cell 0)
iosapic start = 0x000000083fc8c800 num_entries 46 entry_size 16
iosapic 8b 10 00 0f 00 00 00 00 fffffff804000800
iosapic 8b 10 00 0f 04 00 00 00 fffffff804000800
iosapic 8b 10 00 0f 00 08 00 00 fffffff804002800
iosapic 8b 10 00 0f 01 08 00 01 fffffff804002800
iosapic 8b 10 00 0f 02 08 00 02 fffffff804002800
iosapic 8b 10 00 0f 03 08 00 03 fffffff804002800
iosapic 8b 10 00 0f 00 10 00 00 fffffff804004800
iosapic 8b 10 00 0f 01 10 00 01 fffffff804004800
iosapic 8b 10 00 0f 02 10 00 02 fffffff804004800
iosapic 8b 10 00 0f 03 10 00 03 fffffff804004800
iosapic 8b 10 00 0f 00 18 00 00 fffffff804006800
iosapic 8b 10 00 0f 01 18 00 01 fffffff804006800
iosapic 8b 10 00 0f 02 18 00 02 fffffff804006800
iosapic 8b 10 00 0f 03 18 00 03 fffffff804006800
iosapic 8b 10 00 0f 00 20 00 00 fffffff804008800
iosapic 8b 10 00 0f 01 20 00 01 fffffff804008800
iosapic 8b 10 00 0f 02 20 00 02 fffffff804008800
iosapic 8b 10 00 0f 03 20 00 03 fffffff804008800
iosapic 8b 10 00 0f 00 30 00 00 fffffff80400c800
iosapic 8b 10 00 0f 01 30 00 01 fffffff80400c800
iosapic 8b 10 00 0f 02 30 00 02 fffffff80400c800
iosapic 8b 10 00 0f 03 30 00 03 fffffff80400c800
iosapic 8b 10 00 0f 00 40 00 00 fffffff804010800
iosapic 8b 10 00 0f 01 40 00 01 fffffff804010800
iosapic 8b 10 00 0f 02 40 00 02 fffffff804010800
iosapic 8b 10 00 0f 03 40 00 03 fffffff804010800
iosapic 8b 10 00 0f 00 48 00 00 fffffff804012800
iosapic 8b 10 00 0f 01 48 00 01 fffffff804012800
iosapic 8b 10 00 0f 02 48 00 02 fffffff804012800
iosapic 8b 10 00 0f 03 48 00 03 fffffff804012800
iosapic 8b 10 00 0f 00 50 00 00 fffffff804014800
iosapic 8b 10 00 0f 01 50 00 01 fffffff804014800
iosapic 8b 10 00 0f 02 50 00 02 fffffff804014800
iosapic 8b 10 00 0f 03 50 00 03 fffffff804014800
iosapic 8b 10 00 0f 00 58 00 00 fffffff804016800
iosapic 8b 10 00 0f 01 58 00 01 fffffff804016800
iosapic 8b 10 00 0f 02 58 00 02 fffffff804016800
iosapic 8b 10 00 0f 03 58 00 03 fffffff804016800
iosapic 8b 10 00 0f 00 60 00 00 fffffff804018800
iosapic 8b 10 00 0f 01 60 00 01 fffffff804018800
iosapic 8b 10 00 0f 02 60 00 02 fffffff804018800
iosapic 8b 10 00 0f 03 60 00 03 fffffff804018800
iosapic 8b 10 00 0f 00 70 00 00 fffffff80401c800
iosapic 8b 10 00 0f 01 70 00 01 fffffff80401c800
iosapic 8b 10 00 0f 02 70 00 02 fffffff80401c800
iosapic 8b 10 00 0f 03 70 00 03 fffffff80401c800
SBA found REO rev 2 at 0xfffffff808000000
Elroy version TR4.0 (0x5) found at 0xfffffff804000000
Backtrace:
 [<00000000402b406c>] lba_fixup_bus+0x36c/0x3d8
 [<00000000401208dc>] pcibios_fixup_bus+0x2c/0x50
 [<000000004010d45c>] pci_scan_child_bus+0x64/0xf0
 [<000000004010d518>] pci_scan_bus_parented+0x30/0x48
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40


Kernel Fault: Code=26 regs=000000083fc42cf0 (Addr=0000000000000028)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  000000ff0804ff0f 00000000405c7f00 00000000402b154c
000000083fc1b188
r04-07  00000000405b9700 000000083fc1c400 000000083fc1b000
0000000000000007
r08-11  000000083fc8c028 000000083fc088c0 0000000000000000
000000083fc1c558
r12-15  000000083fc1c568 000000083fc1c578 0000000040510f10
000000083fc1c548
r16-19  000000083fc1c490 00000000405bcf00 000000083fc1c4c8
0000000000000000
r20-23  0000000000044048 0000000000000040 0000000000000003
0000000000000001
r24-27  0000000000000000 0000000000000010 00000000405606f4
00000000405b9700
r28-31  0000000000000000 000000083fc1c400 000000083fc42cf0
0000000000000001
sr00-03  0000000000000000 0000000000000000 0000000000000000
0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000
0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402b155c
00000000402b1560
 IIR: 53990050    ISR: 0000000000000000  IOR: 0000000000000028
 CPU:        0   CR30: 000000083fc40000 CR31: f7fc7fe9ffe3ffe7
 ORIG_R28: 000000004013d598
 IAOQ[0]: iosapic_fixup_irq+0xd4/0x448
 IAOQ[1]: iosapic_fixup_irq+0xd8/0x448
 RP(r2): iosapic_fixup_irq+0xc4/0x448
Backtrace:
 [<00000000402b406c>] lba_fixup_bus+0x36c/0x3d8
 [<00000000401208dc>] pcibios_fixup_bus+0x2c/0x50
 [<000000004010d45c>] pci_scan_child_bus+0x64/0xf0
 [<000000004010d518>] pci_scan_bus_parented+0x30/0x48
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40
 [<00000000405e1f50>] lba_driver_probe+0x950/0xa40

Kernel panic - not syncing: Kernel Fault


4 CPU partition (one CPU is faulty and disabled):

Linux version 2.6.29-rc3-00000-g33bfad5-dirty (tsbogend@login) (gcc
version 4.2.1) #59 Fri Feb 13 21:31:17 CET 2009
unwind_init: start = 0x404718c0, end = 0x4049da80, entries = 11292
WARNING: Out of order unwind entry! 00000000404733d0 and
00000000404733e0
WARNING: Out of order unwind entry! 00000000404733e0 and
00000000404733f0
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00005e70 00000491 00000000 00000002 3e0f97abec371bc2 00000000
00000008 000000b2 000000b2
vers  00000202
CPUID vers 19 rev 1 (0x00000261)
capabilities 0x3d
model 9000/800/SD32000
parisc_cache_init: Only equivalent aliasing supported!
Total Memory: 8184 MB
Built 1 zonelists in Zone order, mobility grouping on.  Total pages:
2066460
Kernel command line: HOME=/ ip=dhcp console=ttyS0 TERM=vt102
palo_kernel=0/vmlinux
PID hash table entries: 4096 (order: 12, 32768 bytes)
Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
Memory: 8231424k/8380416k available (2850k kernel code, 148464k
reserved, 1413k data, 164k init)
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x000000023f800000   (8184 MB)
      .init : 0x00000000405cc000 - 0x00000000405f5000   ( 164 kB)
      .data : 0x00000000403c8828 - 0x000000004052a000   (1413 kB)
      .text : 0x0000000040100000 - 0x00000000403c8828   (2850 kB)
Calibrating delay loop... 1495.04 BogoMIPS (lpj=2990080)
Security Framework initialized
Mount-cache hash table entries: 256
net_namespace: 544 bytes
NET: Registered protocol family 16
Searching for devices...
Two devices have hardware path [255].  IODC data for second device:
00404e0000abRearranging GSC cards sometimes helps
Two devices have hardware path [255].  IODC data for second device:
00404e0000abRearranging GSC cards sometimes helps
Found devices:
1. Caribe DNA Central Agent at 0xfffffffffc400000 [255] { 14, 0x0,
0x007, 0x000aa }
2. Caribe W2 800 at 0xfffffffffc47a000 [11] { 0, 0x0, 0x5e7, 0x00004 }
3. Caribe W2 800 at 0xfffffffffc47c000 [12] { 0, 0x0, 0x5e7, 0x00004 }
4. Caribe W2 800 at 0xfffffffffc47e000 [13] { 0, 0x0, 0x5e7, 0x00004 }
5. Memory at 0xfffffffffc405000 [5] { 1, 0x0, 0x0a8, 0x00009 }
6. REO I/O BC Merced Port at 0xfffffff888000000 [0] { 7, 0x0, 0x804,
0x0000c }
7. Elroy PCI Bridge at 0xfffffff884000000 [0/0] { 13, 0x0, 0x782,
0x0000a }
8. Elroy PCI Bridge at 0xfffffff884002000 [0/1] { 13, 0x0, 0x782,
0x0000a }
9. Elroy PCI Bridge at 0xfffffff884004000 [0/2] { 13, 0x0, 0x782,
0x0000a }
10. Elroy PCI Bridge at 0xfffffff884006000 [0/3] { 13, 0x0, 0x782,
0x0000a }
11. Elroy PCI Bridge at 0xfffffff884008000 [0/4] { 13, 0x0, 0x782,
0x0000a }
12. Elroy PCI Bridge at 0xfffffff88400c000 [0/6] { 13, 0x0, 0x782,
0x0000a }
13. Elroy PCI Bridge at 0xfffffff884010000 [0/8] { 13, 0x0, 0x782,
0x0000a }
14. Elroy PCI Bridge at 0xfffffff884012000 [0/9] { 13, 0x0, 0x782,
0x0000a }
15. Elroy PCI Bridge at 0xfffffff884014000 [0/10] { 13, 0x0, 0x782,
0x0000a }
16. Elroy PCI Bridge at 0xfffffff884016000 [0/11] { 13, 0x0, 0x782,
0x0000a }
17. Elroy PCI Bridge at 0xfffffff884018000 [0/12] { 13, 0x0, 0x782,
0x0000a }
18. Elroy PCI Bridge at 0xfffffff88401c000 [0/14] { 13, 0x0, 0x782,
0x0000a }
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 12 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 13 failed with error 1
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
Setting cache flush threshold to 180000 (1 CPUs online)
iosapic_init()
calling get_irt_size (cell 4)
get_irt_size: 0
pdc_pat_get_irt: 0
iosapic Interrupt Routing Table (cell 4)
iosapic start = 0x000000023f090c00 num_entries 46 entry_size 16
iosapic 8b 10 00 0f 00 00 04 00 fffffff884000800
iosapic 8b 10 00 0f 04 00 04 00 fffffff884000800
iosapic 8b 10 00 0f 00 08 04 00 fffffff884002800
iosapic 8b 10 00 0f 01 08 04 01 fffffff884002800
iosapic 8b 10 00 0f 02 08 04 02 fffffff884002800
iosapic 8b 10 00 0f 03 08 04 03 fffffff884002800
iosapic 8b 10 00 0f 00 10 04 00 fffffff884004800
iosapic 8b 10 00 0f 01 10 04 01 fffffff884004800
iosapic 8b 10 00 0f 02 10 04 02 fffffff884004800
iosapic 8b 10 00 0f 03 10 04 03 fffffff884004800
iosapic 8b 10 00 0f 00 18 04 00 fffffff884006800
iosapic 8b 10 00 0f 01 18 04 01 fffffff884006800
iosapic 8b 10 00 0f 02 18 04 02 fffffff884006800
iosapic 8b 10 00 0f 03 18 04 03 fffffff884006800
iosapic 8b 10 00 0f 00 20 04 00 fffffff884008800
iosapic 8b 10 00 0f 01 20 04 01 fffffff884

ser pim:

HPMC Information

  HPMC Chassis Codes:      Extension:
  ------------------       -----------------
  0xb80008000000620f       0x0000000000000000
  0xb80008000000621c       0x0000000000000000
  0xb800082011016c2c       0x0000000000000000
  0xb80008000000626c       0x0000000000000000
  0x180008000000633c       0x0000000000000000
  0xb80008000000624c       0x00000000000000ea
  0xb8000800000062fc       0x00000000000000eb
  0xb8000800000062fc       0x00000000000000ec


Timestamp = 02:27:05 GMT    Feb 14 2009

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  00000081ff8a9cb0
00000081ffc40000
04-07  00000081ffc40330  00000081ffc407b0  00000081ffc407b0
00000081ffc40680
08-11  000000023f022a20  0000000000000040  0000000000000002
00000000005412c0
12-15  00ffff04ffffff94  0000000000000008  0000000000000001
000000000053f1c0
16-19  603c9b9103f774b0  00000081ffc407b8  603c9b9103f774b0
603c9b9103f774b0
20-23  000000000053f1c0  0000000000000001  0000000000000008
00ffff04ffffff94
24-27  00000000005412c0  0000000000000002  0000000000000040
00000081ff9d76f0
28-31  00000081ffc40000  0000000000541810  00000000005417d0
00000081ffc40690

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000
0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000
0000000000000000
08-11  0000000000000000  0000000000000000  00000000000000c0
0000000000000031
12-15  0000000000000000  0000000000000000  0000000000103000
8000000000000000
16-19  00000020f70a0b02  0000000000000081  00000081ff8a9d64
000000000e6010df
20-23  000000000436440f  40000000ddf774b0  0000000008000108
8000000000000000
24-27  000000000052c000  000000000052c000  13f8e363a2f7c22b
13f8e343a2f7c22b
28-31  13f8e363a2f7c22b  9358f363a2b78323  000000023f020000
93b8f363a2b5c32b

Space Registers 0 - 7
00-03  0000000000000000  0000000000000000  0000000000000000
0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000
0000000000000000

Floating Point Registers 0 - 32
00-03  3b530fb761871637  f8be7beddfd0c244  d33fe1b257d77169
9944bc7fcf9b9221
04-07  1d906672bdc4223c  706fa77cab85706c  39fc0b5cdecc65cc
f467c37df74ee338
08-11  58e5a620d50cc070  b3f94d7ed58db410  d8948e47b7d0520a
fa0d021e579d246e
12-15  b8efd63f36764318  d17f0642fd85bc68  96ad979ebfd0640c
9edd22a7bf87a038
16-19  bbb5f63b0b84602b  63be400edfc16009  ba3c061dbed926f0
3c3596fff61c520c
20-23  1a2547ef7b460028  f859cd6e93a14a60  000000000000006f
00000000000000de
24-27  0000000000000000  ffcf1b1f5994e41c  db24613fc40c04e8
9a55837ebb4070ec
28-31  5ecd789fcacc7244  0000000200c08110  1a30a004d78a36ac
0000800010000000

IIA Space                    = 0x0000000000000081
IIA Offset                   = 0x00000081ff8a9d68
Check Type                   = 0x0000000020000000
CPU State                    = 0x000000009e000004
Cache Check                  = 0x0000000000000000
TLB Check                    = 0x0000000000000000
Bus Check                    = 0x000000000030000d
Assists Check                = 0x0000000000000000
Assist State                 = 0x0000000000000000
Path Info                    = 0x0000000000000000
System Responder Address     = 0xfffffffffc47a000
System Requestor Address     = 0x0000000000000000
Summary                      = 0xcb83000000000000
Available Memory             = 0x00000001ff800000
CPU DR2                      = 0x020211a10c002004
CPU Status 0                 = 0x3240c30000000000
CPU Status 1                 = 0x8000000000000000
CPU S Address Log            = 0x483ffffffffc0000
CPU RS Log                   = 0xc1bff0ffff417238
Time Stamp                   = 0x2009021400022705
System Firmware Revision     = 0x00000ac600002401
PDC Relocation Address       = 0x00000081ff800000


Thomas.

-- 
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good idea.                                                [ RFC1925, 2.3 ]
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From - Thu Nov 08 21:03:39 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: simplify sys_clone()
Date: Fri, 13 Feb 2009 23:58:29 +0100
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No need to test clone_flags here and set parent_tidptr and child_tidptr
accordingly. The same check will be done in do_fork() and copy_process() anyway.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index b80e02a..ad585fd 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -231,8 +231,8 @@ sys_clone(unsigned long clone_flags, unsigned long usp,
 	   
 	   However, these last 3 args are only examined
 	   if the proper flags are set. */
-	int __user *child_tidptr;
-	int __user *parent_tidptr;
+	int __user *parent_tidptr = (int __user *)regs->gr[24];
+	int __user *child_tidptr  = (int __user *)regs->gr[22];
 
 	/* usp must be word aligned.  This also prevents users from
 	 * passing in the value 1 (which is the signal for a special
@@ -243,16 +243,6 @@ sys_clone(unsigned long clone_flags, unsigned long usp,
 	if (usp == 0)
 	  usp = regs->gr[30];
 
-	if (clone_flags & CLONE_PARENT_SETTID)
-	  parent_tidptr = (int __user *)regs->gr[24];
-	else
-	  parent_tidptr = NULL;
-	
-	if (clone_flags & (CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID))
-	  child_tidptr = (int __user *)regs->gr[22];
-	else
-	  child_tidptr = NULL;

From - Thu Nov 08 21:03:39 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: [RFC] pthread/signal problems on hppa (ruby1.9 problems)
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Cc: Helge Deller <deller@gmx.de>,
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On Fri, Feb 13, 2009 at 11:35 AM, Kyle McMartin <kyle@infradead.org> wrote:
> On Fri, Feb 13, 2009 at 01:43:37AM +0100, Helge Deller wrote:
>> child_stack=0x804b904, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM) = 30263
>
>> and here with hppa:
>> child_stack=0x804b904, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_SYSVSEM) = 30272

CLONE_THREAD informs the kernel of the *type* of POSIX signal
semantics to apply.

In glibc CLONE_SIGNAL expands to CLONE_SIGHAND | CLONE_THREAD, so
watch out for that when reading the code.

Unfortunately linuxthreads can't cope with CLONE_THREAD being enabled.
For example if you enable CLONE_THREAD then getpid() in those threads
will no
longer return a unique value per thread, but the thread group ID.

> Somewhat preturbed by this. This appears to be the flags set by the
> respective nptl and linuxthreads code paths. I thought Dann Frazier
> said that NPTL hadn't helped? Perhaps we still have bugs in our NPTL
> code... :/

CLONE_THREAD is always on in NPTL. I know of no targets that override
ARCH_CLONE in glibc to remove CLONE_THREAD from the flag list.

That is not to say that the bug might be different in NPTL.

> (See CLONE_SIGNAL in nptl/$mumble.c, versus the annotate of the file
>  you've patched in linuxthreads...)
>
> Would be curious to see what happens on linuxthreads-i386...

I would bet that it also locks up.

Cheers,
Carlos.
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From: Kyle McMartin <kyle@infradead.org>
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Subject: [PATCH] parisc: fixup cpu_check_affinity for const cpumask *dest
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Noticed a new build warning... poking at it a bit, and lo' and behold
it was a patch that never hit the list or my email...

Anyway, this preserves the intent of the original code, which was for
the first cpu set in the mask to be saved in *dest, so it could be
used to program the IRT entry.

Personally, I find the idea of changing irq_desc directly in the iosapic
code fairly distasteful, but there's not really a choice.

diff --git a/arch/parisc/include/asm/irq.h b/arch/parisc/include/asm/irq.h
index 399c819..dfa26b6 100644
--- a/arch/parisc/include/asm/irq.h
+++ b/arch/parisc/include/asm/irq.h
@@ -49,7 +49,7 @@ extern unsigned long txn_alloc_addr(unsigned int);
 extern unsigned long txn_affinity_addr(unsigned int irq, int cpu);
 
 extern int cpu_claim_irq(unsigned int irq, struct irq_chip *, void *);
-extern int cpu_check_affinity(unsigned int irq, cpumask_t *dest);
+extern int cpu_check_affinity(unsigned int irq, const struct cpumask *dest);
 
 /* soft power switch support (power.c) */
 extern struct tasklet_struct power_tasklet;
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index ac2c822..0454080 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -112,7 +112,7 @@ void cpu_end_irq(unsigned int irq)
 }
 
 #ifdef CONFIG_SMP
-int cpu_check_affinity(unsigned int irq, cpumask_t *dest)
+int cpu_check_affinity(unsigned int irq, const struct cpumask *dest)
 {
 	int cpu_dest;
 
@@ -126,17 +126,19 @@ int cpu_check_affinity(unsigned int irq, cpumask_t *dest)
 
 	/* whatever mask they set, we just allow one CPU */
 	cpu_dest = first_cpu(*dest);
-	*dest = cpumask_of_cpu(cpu_dest);
 
-	return 0;
+	return cpu_dest;
 }
 
 static void cpu_set_affinity_irq(unsigned int irq, const struct cpumask *dest)
 {
-	if (cpu_check_affinity(irq, dest))
+	int cpu_dest;
+
+	cpu_dest = cpu_check_affinity(irq, dest);
+	if (cpu_dest < 0)
 		return;
 
-	irq_desc[irq].affinity = *dest;
+	irq_desc[irq].affinity = cpumask_of_cpu(cpu_dest);
 }
 #endif
 
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 1cdfdea..501aaf1 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -708,11 +708,14 @@ static void iosapic_set_affinity_irq(unsigned int irq,
 	struct vector_info *vi = iosapic_get_vector(irq);
 	u32 d0, d1, dummy_d0;
 	unsigned long flags;
+	int dest_cpu;
 
-	if (cpu_check_affinity(irq, dest))
+	dest_cpu = cpu_check_affinity(irq, dest);
+	if (dest_cpu < 0)
 		return;
 
-	vi->txn_addr = txn_affinity_addr(irq, cpumask_first(dest));
+	irq_desc[irq].affinity = cpumask_of_cpu(dest_cpu);
+	vi->txn_addr = txn_affinity_addr(irq, dest_cpu);
 
 	spin_lock_irqsave(&iosapic_lock, flags);
 	/* d1 contains the destination CPU, so only want to set that
--
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From: Helge Deller <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.debian.ports.hppa:5609 gmane.linux.ports.parisc:1288
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Hi Jean-Pierre,
(added linux-parisc mailing list)

I just tested the debian kernel on my c3k.
For me a small external USB disk (250GB disk) attached to the USB bus worked fine.
Just for reference, I've uploaded my dmesg file here: http://userweb.kernel.org/~deller/usbdisk.c3k/dmesg.c3k

On your system PCI bus handling seems strange, e.g. those kernel messages:
a) PCI: Unable to handle 64-bit address space for bridge 0000:01:04.0
b) [17179607.932000] ohci_hcd 0000:02:08.0: controller already in use

So, although your ohci_hcd driver was loaded, it was not activated. That's why you can't access your USB disks.

As I'm no PCI bus expert, maybe the other collegues on the parisc mailing list could comment?

The messages of a 64bit kernel would be interesting as well...

Helge

Jean-Pierre HOFER wrote:
>>> I am unable to find any USB device files on my system (HP C360, debian testing
>>> 2.6.26-1) and to plug any USB device.
>>>
>>> lspri -v | grep HCI
>>> 02.08.0 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
>>> 02:08.1 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
>>> 02:08.2 USB Controller: NEC Corporation USB 2.0 (rev 02) (prog-if 20 [EHCI])
>>>
>>> It seems that the USB controller was detected at boot time since the drivers
>>> are loaded :
>>> lsmod
>>> [...]
>>> ohci_hcd             38568  0
>>> ehci_hcd             53328  0
>>> [...]
>>>
>>> This problem did not occur under Debian/etch.
>>>
>>> Now, how to mount USB storages ?
>>> Is there a workaround ?
>>
>> What exactly are you missing? The /dev/XXX files?
>> Which ones where there in etch which are not there yet?
> 
> Unfortunately, I don't have an etch system running any more.
> I don't recall this exactly, it was probably /dev/usb[0-4].
> 
> Here is the dmesg file :
> 
> [    0.000000] Initializing cgroup subsys cpu
> [    0.000000] Linux version 2.6.26-1-parisc (Debian 2.6.26-13) (waldi@debian.org) (gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-24)) #1 Sat Jan 10 17:34:01 UTC 2009
> [    0.000000] FP[0] enabled: Rev 1 Model 16
> [    0.000000] The 32-bit Kernel has started...
> [    0.000000] console [ttyB0] enabled
> [    0.000000] Initialized PDC Console for debugging.
> [    0.000000] Determining PDC firmware type: System Map.
> [    0.000000] model 00005c60 00000481 00000000 00000002 778fcc50 100000f0 00000008 000000b2 000000b2
> [    0.000000] vers  00000100
> [    0.000000] CPUID vers 14 rev 0 (0x000001c0)
> [    0.000000] capabilities 0x2
> [    0.000000] model 9000/785/C360
> [    0.000000] Total Memory: 2304 MB
> [    0.000000] initrd: 4f917000-4ffee6f9
> [    0.000000] initrd: reserving 3f917000-3ffee6f9 (mem_max 90000000)
> [    0.000000] On node 0 totalpages: 589824
> [    0.000000]   Normal zone: 4608 pages used for memmap
> [    0.000000]   Normal zone: 0 pages reserved
> [    0.000000]   Normal zone: 585216 pages, LIFO batch:31
> [    0.000000]   Movable zone: 0 pages used for memmap
> [    0.000000] LED display at f0190001 registered
> [    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 585216
> [    0.000000] Kernel command line: root=/dev/sda8 HOME=/ console=tty0 sti=8/0/1/0 sti_font=VGA8x16 TERM=linux palo_kernel=2/vmlinux
> [    0.000000] PID hash table entries: 4096 (order: 12, 16384 bytes)
> [17179569.184000] Console: colour dummy device 160x64
> [17179569.236000] console handover: boot [ttyB0] -> real [tty0]
> [17179569.304000] Dentry cache hash table entries: 524288 (order: 9, 2097152 bytes)
> [17179569.340000] Inode-cache hash table entries: 262144 (order: 8, 1048576 bytes)
> [17179569.776000] Memory: 2322432k/2359296k available (1961k kernel code, 36624k reserved, 882k data, 224k init)
> [17179569.776000] virtual kernel memory layout:
> [17179569.776000]     vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
> [17179569.776000]     memory  : 0x10000000 - 0xa0000000   (2304 MB)
> [17179569.776000]       .init : 0x10410000 - 0x10448000   ( 224 kB)
> [17179569.776000]       .data : 0x102ea6c4 - 0x103c7000   ( 882 kB)
> [17179569.776000]       .text : 0x10100000 - 0x102ea6c4   (1961 kB)
> [17179569.780000] Calibrating delay loop... 731.13 BogoMIPS (lpj=1462272)
> [17179569.872000] Security Framework initialized
> [17179569.872000] SELinux:  Disabled at boot.
> [17179569.872000] Capability LSM initialized
> [17179569.872000] Mount-cache hash table entries: 512
> [17179569.872000] Initializing cgroup subsys ns
> [17179569.872000] Initializing cgroup subsys cpuacct
> [17179569.872000] Initializing cgroup subsys devices
> [17179569.872000] net_namespace: 648 bytes
> [17179569.876000] NET: Registered protocol family 16
> [17179569.876000] EISA bus registered
> [17179569.876000] Searching for devices...
> [17179590.676000] Found devices:
> [17179590.676000] 1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0xf, 0x580, 0x0000b }
> [17179590.676000] 2. Dino PCI Bridge at 0xf2000000 [8/0] { 13, 0x3, 0x680, 0x0000a }, additional addresses: 0xf2800000 0xf6000000 
> [17179590.676000] 3. Raven U/L2 Dino RS-232 at 0xf2003000 [8/0/63] { 10, 0x0, 0x006, 0x0008c }
> [17179590.676000] 4. Raven+ w SE FWSCSI Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x056, 0x00081 }, additional addresses: 0xffd0c000 0xffc00000 
> [17179590.676000] 5. Raven+ w SE FWSCSI Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x056, 0x0008c }
> [17179590.676000] 6. Raven+ w SE FWSCSI Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x056, 0x00082 }
> [17179590.676000] 7. Raven+ w SE FWSCSI Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x056, 0x00074 }, additional addresses: 0xffd01000 0xffd03000 
> [17179590.676000] 8. Raven+ w SE FWSCSI Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x056, 0x0007b }
> [17179590.676000] 9. Raven+ w SE FWSCSI Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x056, 0x00084 }
> [17179590.676000] 10. Raven+ w SE FWSCSI Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x056, 0x00084 }
> [17179590.676000] 11. U2-IOA BC GSC+ Port at 0xf203f000 [8/63] { 7, 0x1, 0x501, 0x0000c }
> [17179590.676000] 12. Raven U/L2 Dino PS/2 Port at 0xf2001000 [8/1] { 10, 0x0, 0x006, 0x00096 }
> [17179590.676000] 13. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0xf, 0x580, 0x0000b }
> [17179590.676000] 14. U2-IOA BC GSC+ Port at 0xf103f000 [10/63] { 7, 0x1, 0x501, 0x0000c }
> [17179590.676000] 15. Cujo PCI Bridge at 0xf1000000 [10/0] { 13, 0x1, 0x682, 0x0000a }, additional addresses: 0xf1800000 
> [17179590.676000] 16. Dino RS-232 at 0xf1003000 [10/3] { 10, 0x0, 0x007, 0x0008c }
> [17179590.676000] 17. Raven W 360 (9000/780) at 0xfffa0000 [32] { 0, 0x0, 0x5c6, 0x00004 }
> [17179590.676000] 18. Memory at 0xfffb1000 [49] { 1, 0x0, 0x097, 0x00009 }
> [17179590.676000] Enabling regular chassis codes support v0.05
> [17179591.312000] CPU(s): 1 x PA8500 (PCX-W) at 367.111100 MHz
> [17179591.316000] Whole cache flush 256059 cycles, flushing 3440640 bytes 1382342 cycles
> [17179591.316000] Setting cache flush threshold to 1a0 (1 CPUs online)
> [17179591.316000] Found U2 at 0xfff88000
> [17179591.340000] Found U2 at 0xfff8a000
> [17179591.364000] Lasi version 0 at 0xffd00000 found.
> [17179591.380000] Found GeckoBoa at 0xf203f000
> [17179591.380000] drivers/parisc/hppb.c: failed to claim HP-PB bus space (00000000, ffffffff)
> [17179591.380000] Found GeckoBoa at 0xf103f000
> [17179591.380000] drivers/parisc/hppb.c: failed to claim HP-PB bus space (00000000, ffffffff)
> [17179591.380000] Dino version 3.1 found at 0xf2000000
> [17179591.384000] Cujo version 2.0 found at 0xf1000000
> [17179591.384000] Enabling Cujo 2.0 bug workaround
> [17179591.388000] PCI: Unable to handle 64-bit address space for bridge 0000:01:04.0
> [17179591.388000] PCI: Cannot allocate resource (bogus alignment) 8 [100000:1fffff] (flags 200) of 0000:01:04.0
> [17179591.392000] PCI: bogus alignment of resource 8 [100000:1fffff] (flags 200) of 0000:01:04.0

^^ What's that?

> [17179591.392000] PCI: Bridge: 0000:01:04.0
> [17179591.392000]   IO window: disabled.
> [17179591.392000]   MEM window: 0x00100000-0x001fffff
> [17179591.392000]   PREFETCH window: disabled.
> [17179591.392000] powersw: Soft power switch at 0xf0140000 enabled.
> [17179591.408000] NET: Registered protocol family 2
> [17179591.444000] IP route cache hash table entries: 131072 (order: 7, 524288 bytes)
> [17179591.448000] TCP established hash table entries: 524288 (order: 10, 4194304 bytes)
> [17179591.492000] TCP bind hash table entries: 65536 (order: 6, 262144 bytes)
> [17179591.496000] TCP: Hash tables configured (established 524288 bind 65536)
> [17179591.496000] TCP reno registered
> [17179591.508000] NET: Registered protocol family 1
> [17179591.508000] checking if image is initramfs... it is
> [17179596.108000] Freeing initrd memory: 7005k freed
> [17179596.112000] Enabling PDC chassis warnings support v0.05
> [17179596.112000] unwind_init: start = 0x1035de10, end = 0x103850f0, entries = 10030
> [17179596.116000] audit: initializing netlink socket (disabled)
> [17179596.116000] type=2000 audit(1234628527.932:1): initialized
> [17179596.120000] VFS: Disk quotas dquot_6.5.1
> [17179596.120000] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> [17179596.120000] msgmni has been set to 4550
> [17179596.124000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
> [17179596.124000] io scheduler noop registered
> [17179596.124000] io scheduler anticipatory registered
> [17179596.124000] io scheduler deadline registered
> [17179596.124000] io scheduler cfq registered (default)
> [17179596.128000] PDC Stable Storage facility v0.30
> [17179597.600000] STI GSC/PCI core graphics driver Version 0.9a
> [17179597.600000] sti 0000:00:01.0: enabling SERR and PARITY (0002 -> 0142)
> [17179597.600000] STI PCI graphic ROM found at f2f80000 (64 kB), fb at f6000000 (32 MB)
> [17179597.688000]     id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
> [17179597.688000]     graphics card name: PCI_GRAFFITIX1280
> [17179597.688000] sticon: Initializing STI text console.
> [17179597.692000] Console: switching to colour STI console 160x64
> [17179598.540000] Console: switching to colour frame buffer device 160x64
> [17179598.656000] fb0: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIX1280, id: 2d08c0a7, mmio: 0xf6100000
> [17179598.692000] Generic RTC Driver v1.07
> [17179598.712000] Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
> [17179598.736000] 8:16:4: ttyS0 at MMIO 0xffd05800 (irq = 16) is a 16550A
> [17179598.760000] 8:0:63: ttyS1 at MMIO 0xf2003800 (irq = 21) is a 16550A
> [17179598.788000] brd: module loaded
> [17179598.808000] serio: GSC PS/2 keyboard port at 0x00020000 irq 20 @ 8:16:7
> [17179598.832000] serio: GSC PS/2 mouse port at 0x00022100 irq 20 @ 8:16:8
> [17179598.848000] mice: PS/2 mouse device common for all mice
> [17179598.876000] TCP cubic registered
> [17179598.892000] NET: Registered protocol family 17
> [17179598.952000] input: AT Raw Set 2 keyboard as /class/input/input0
> [17179598.968000] registered taskstats version 1
> [17179598.988000] Freeing unused kernel memory: 224k freed
> [17179600.620000] SCSI subsystem initialized
> [17179600.700000] 53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
> [17179600.720000] scsi0: 53c710 rev 2 
> [17179601.736000] scsi0 : LASI SCSI 53c700
> [17179602.400000] scsi 0:0:2:0: CD-ROM            TOSHIBA  CD-ROM XM-5401TA 1036 PQ: 0 ANSI: 2
> [17179602.424000]  target0:0:2: Beginning Domain Validation
> [17179602.444000]  target0:0:2: asynchronous
> [17179602.488000]  target0:0:2: FAST-5 SCSI 4.2 MB/s ST (236 ns, offset 8)
> [17179602.524000]  target0:0:2: Domain Validation skipping write tests
> [17179602.544000]  target0:0:2: Ending Domain Validation
> [17179606.428000] Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
> [17179606.456000] tulip0: no phy info, aborting mtable build
> [17179606.476000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
> [17179606.504000] eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xf2801000, 00:10:83:05:83:a5, IRQ 24.
> [17179606.584000] sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 23
> [17179606.984000] sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
> [17179607.004000] sym0: SCSI BUS has been reset.
> [17179607.032000] scsi1 : sym-2.2.3
> [17179607.292000] usbcore: registered new interface driver usbfs
> [17179607.312000] usbcore: registered new interface driver hub
> [17179607.488000] Driver 'sr' needs updating - please use bus_type methods
> [17179607.688000] sr0: scsi-1 drive
> [17179607.708000] Uniform CD-ROM driver Revision: 3.20
> [17179607.728000] sr 0:0:2:0: Attached scsi CD-ROM sr0
> [17179607.756000] usbcore: registered new device driver usb

from here ->
> [17179607.788000] ohci1394 0000:02:0b.0: enabling device (0150 -> 0152)
> [17179607.812000] ohci1394: MMIO resource (0x106000 - 0x106800) unavailable
> [17179607.828000] ohci1394: probe of 0000:02:0b.0 failed with error -12
> [17179607.912000] ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver
> [17179607.912000] ohci_hcd: block sizes: ed 64 td 64
> [17179607.912000] ohci_hcd 0000:02:08.0: enabling device (0150 -> 0152)
> [17179607.932000] ohci_hcd 0000:02:08.0: controller already in use
> [17179607.932000] ohci_hcd 0000:02:08.0: init 0000:02:08.0 fail, -16
> [17179607.952000] ohci_hcd: probe of 0000:02:08.0 failed with error -16
> [17179607.972000] ohci_hcd 0000:02:08.1: enabling device (0150 -> 0152)
> [17179607.992000] ohci_hcd 0000:02:08.1: controller already in use
> [17179607.992000] ohci_hcd 0000:02:08.1: init 0000:02:08.1 fail, -16
> [17179608.012000] ohci_hcd: probe of 0000:02:08.1 failed with error -16
> [17179608.056000] ehci_hcd: block sizes: qh 128 qtd 96 itd 160 sitd 96
> [17179608.056000] ehci_hcd 0000:02:08.2: enabling device (0150 -> 0152)
> [17179608.076000] ehci_hcd 0000:02:08.2: controller already in use
> [17179608.076000] ehci_hcd 0000:02:08.2: init 0000:02:08.2 fail, -16
> [17179608.096000] ehci_hcd: probe of 0000:02:08.2 failed with error -16
to here: This looks strange.

> [17179608.620000] sr 0:0:2:0: Attached scsi generic sg0 type 5
> [17179610.020000] scsi 1:0:0:0: Direct-Access     FUJITSU  MAT3073NC        5207 PQ: 0 ANSI: 3
> [17179610.040000]  target1:0:0: tagged command queuing enabled, command queue depth 16.
> [17179610.060000]  target1:0:0: Beginning Domain Validation
> [17179610.084000]  target1:0:0: asynchronous
> [17179610.116000]  target1:0:0: wide asynchronous
> [17179610.136000]  target1:0:0: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 16)
> [17179610.160000]  target1:0:0: Domain Validation skipping write tests
> [17179610.180000]  target1:0:0: Ending Domain Validation
> [17179610.200000] scsi 1:0:1:0: Direct-Access     FUJITSU  MAP3735NC        5207 PQ: 0 ANSI: 3
> [17179610.220000]  target1:0:1: tagged command queuing enabled, command queue depth 16.
> [17179610.240000]  target1:0:1: Beginning Domain Validation
> [17179610.264000]  target1:0:1: asynchronous
> [17179610.296000]  target1:0:1: wide asynchronous
> [17179610.316000]  target1:0:1: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 16)
> [17179610.336000]  target1:0:1: Domain Validation skipping write tests
> [17179610.356000]  target1:0:1: Ending Domain Validation
> [17179614.200000] scsi 1:0:0:0: Attached scsi generic sg1 type 0
> [17179614.220000] scsi 1:0:1:0: Attached scsi generic sg2 type 0
> [17179614.660000] Driver 'sd' needs updating - please use bus_type methods
> [17179614.736000] sd 1:0:0:0: [sda] 143374744 512-byte hardware sectors (73408 MB)
> [17179614.760000] sd 1:0:0:0: [sda] Write Protect is off
> [17179614.776000] sd 1:0:0:0: [sda] Mode Sense: d1 00 00 08
> [17179614.780000] sd 1:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
> [17179614.800000] sd 1:0:0:0: [sda] 143374744 512-byte hardware sectors (73408 MB)
> [17179614.832000] sd 1:0:0:0: [sda] Write Protect is off
> [17179614.852000] sd 1:0:0:0: [sda] Mode Sense: d1 00 00 08
> [17179614.852000] sd 1:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
> [17179614.872000]  sda: sda1 sda2 sda3 < sda5 sda6 sda7 sda8 >
> [17179614.920000] sd 1:0:0:0: [sda] Attached SCSI disk
> [17179614.988000] sd 1:0:1:0: [sdb] 143571316 512-byte hardware sectors (73509 MB)
> [17179615.008000] sd 1:0:1:0: [sdb] Write Protect is off
> [17179615.028000] sd 1:0:1:0: [sdb] Mode Sense: b9 00 00 08
> [17179615.032000] sd 1:0:1:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
> [17179615.052000] sd 1:0:1:0: [sdb] 143571316 512-byte hardware sectors (73509 MB)
> [17179615.080000] sd 1:0:1:0: [sdb] Write Protect is off
> [17179615.100000] sd 1:0:1:0: [sdb] Mode Sense: b9 00 00 08
> [17179615.100000] sd 1:0:1:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
> [17179615.120000]  sdb: sdb1 < sdb5 >
> [17179615.148000] sd 1:0:1:0: [sdb] Attached SCSI disk
> [17179616.948000] kjournald starting.  Commit interval 5 seconds
> [17179616.964000] EXT3-fs: mounted filesystem with ordered data mode.
> [17179623.812000] udevd version 125 started
> [17179640.672000] input: PS/2 Logitech Mouse as /class/input/input1
> [17179644.828000] Adding 2931820k swap on /dev/sda7.  Priority:-1 extents:1 across:2931820k
> [17179645.684000] EXT3 FS on sda8, internal journal
> [17179648.400000] LASI 82596 driver - Revision: 1.30
> [17179648.580000] loop: module loaded
> [17179652.020000] kjournald starting.  Commit interval 5 seconds
> [17179652.052000] EXT3 FS on sda6, internal journal
> [17179652.072000] EXT3-fs: mounted filesystem with ordered data mode.
> [17179652.116000] kjournald starting.  Commit interval 5 seconds
> [17179652.152000] EXT3 FS on sdb5, internal journal
> [17179652.172000] EXT3-fs: mounted filesystem with ordered data mode.
> [17179652.212000] kjournald starting.  Commit interval 5 seconds
> [17179652.236000] EXT3 FS on sda5, internal journal
> [17179652.260000] EXT3-fs: mounted filesystem with ordered data mode.
> [17179659.496000] NET: Registered protocol family 10
> [17179659.520000] lo: Disabled Privacy Extensions
> [17179659.568000] 0000:00:14.0: tulip_stop_rxtx() failed (CSR5 0xf0660000 CSR6 0xb24e2002)
> [17179659.568000] eth0: Setting half-duplex based on MII#1 link partner capability of 0021.
> [17179670.044000] eth0: no IPv6 routers present
> [17179671.764000] lp: driver loaded but no devices found
> [17179671.764000] RPC: Registered udp transport module.
> [17179671.768000] RPC: Registered tcp transport module.
> 



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On Sat, 2009-02-07 15:29:06 +0100, Thomas Bogendoerfer <tsbogend@alpha.fran=
ken.de> wrote:
> Linux version 2.6.29-rc3-00000-g33bfad5-dirty (tsbogend@login) (gcc
[...]
> sym53c8xx 0000:18:00.0: enabling device (0146 -> 0147)
> sym0: <895> rev 0x2 at pci 0000:18:00.0 irq 67
> sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
> sym0: SCSI BUS has been reset.
> scsi0 : sym-2.2.3
> scsi 0:0:0:0: ABORT operation started
> scsi 0:0:0:0: ABORT operation timed-out.
> scsi 0:0:0:0: DEVICE RESET operation started
>=20
> After that it hangs...
> The smaller partion hangs even earlier:

Just to name it (even though it might be a general interrupt problem),
IIRC there just was some email on LKML that some other guy had about the
same sym2 hangs in more conventional ix86 hardware...

So for a test, you might want to replace sym2 with one that's a bit
older...

MfG, JBG

--=20
      Jan-Benedict Glaw      jbglaw@lug-owl.de              +49-172-7608481
Signature of:              What we do for ourselves dies with us. What we d=
o for
the second  :         others and the world remains and is immortal. (Albert=
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As pointed out by Russell in http://marc.info/?l=linux-arch&m=118208089204630&w=2

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 7bf122a..c32f5d6 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -247,6 +247,8 @@ void die_if_kernel(char *str, struct pt_regs *regs, long err)
 
 	oops_in_progress = 1;
 
+	oops_enter();
+
 	/* Amuse the user in a SPARC fashion */
 	if (err) printk(
 KERN_CRIT "      _______________________________ \n"
@@ -293,6 +295,7 @@ KERN_CRIT "                     ||     ||\n");
 		panic("Fatal exception");
 	}
 
+	oops_exit();
 	do_exit(SIGSEGV);
 }
 
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From: Rusty Russell <rusty@rustcorp.com.au>
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Subject: Re: [PATCH] parisc: fixup cpu_check_affinity for const cpumask *dest
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On Saturday 14 February 2009 18:52:19 Kyle McMartin wrote:
> Noticed a new build warning... poking at it a bit, and lo' and behold
> it was a patch that never hit the list or my email...

Hmm, it got a Reviewed-by: line from Grant, but maybe I missed the list?

But fix looks reasonable (I obviously missed that check_cpu_affinity did
more than check...).

Thanks,
Rusty.
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: autoselect 32/64bit compiler
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Automatically select correct 32- or 64bit (cross) compiler, independent if
the kernel is built locally (e.g. 64bit kernel target on 32bit userspace) or 
cross-compiled from another architecture. This patch allows one to just
run 
	make ARCH=parisc	when run as cross compiler, or just
	make 			when run locally.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index da6f669..9d0bd90 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -22,23 +22,12 @@ KBUILD_DEFCONFIG := default_defconfig
 NM		= sh $(srctree)/arch/parisc/nm
 CHECKFLAGS	+= -D__hppa__=1
 
-MACHINE		:= $(shell uname -m)
-ifeq ($(MACHINE),parisc*)
-NATIVE		:= 1
-endif
-
 ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
-WIDTH		:= 64
 CROSS_COMPILE	:= hppa64-linux-gnu-
 else # 32-bit
-WIDTH		:=
-endif

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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/scripts/package/buildtar b/scripts/package/buildtar
index 28574ae..94c97c3 100644
--- a/scripts/package/buildtar
+++ b/scripts/package/buildtar
@@ -75,6 +75,9 @@ case "${ARCH}" in
 	alpha)
 		[ -f "${objtree}/arch/alpha/boot/vmlinux.gz" ] && cp -v -- "${objtree}/arch/alpha/boot/vmlinux.gz" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
 		;;
+	parisc*)
+		[ -f "${KBUILD_IMAGE}" ] && cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
+		;;
 	vax)
 		[ -f "${objtree}/vmlinux.SYS" ] && cp -v -- "${objtree}/vmlinux.SYS" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}.SYS"
 		[ -f "${objtree}/vmlinux.dsk" ] && cp -v -- "${objtree}/vmlinux.dsk" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}.dsk"
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Subject: Re: [PATCH] parisc: autoselect 32/64bit compiler
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Helge Deller wrote:
> Automatically select correct 32- or 64bit (cross) compiler, independent if
> the kernel is built locally (e.g. 64bit kernel target on 32bit userspace) or 
> cross-compiled from another architecture. This patch allows one to just
> run 
> 	make ARCH=parisc	when run as cross compiler, or just
> 	make 			when run locally.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>

Just ignore/drop this patch.
Although IMHO the idea is good, it breaks if people name their
(cross-)compiler "hppa-linux-gcc" instead of "hppa-linux-gnu-gcc".

Helge


> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
> index da6f669..9d0bd90 100644
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
> @@ -22,23 +22,12 @@ KBUILD_DEFCONFIG := default_defconfig
>  NM		= sh $(srctree)/arch/parisc/nm
>  CHECKFLAGS	+= -D__hppa__=1
>  
> -MACHINE		:= $(shell uname -m)
> -ifeq ($(MACHINE),parisc*)
> -NATIVE		:= 1
> -endif
> -
>  ifdef CONFIG_64BIT
>  UTS_MACHINE	:= parisc64
>  CHECKFLAGS	+= -D__LP64__=1 -m64
> -WIDTH		:= 64
>  CROSS_COMPILE	:= hppa64-linux-gnu-
>  else # 32-bit
> -WIDTH		:=
> -endif
> -
> -# attempt to help out folks who are cross-compiling
> -ifeq ($(NATIVE),1)
> -CROSS_COMPILE	:= hppa$(WIDTH)-linux-
> +CROSS_COMPILE	:= hppa-linux-gnu-
>  endif
>  
>  OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
> 

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Please create accounts here, I'll be looking here for patches
instead of the current location.

http://patchwork.kernel.org/project/linux-parisc/list/

The old one will be going offline when the machine it's on dies
sometime in the next few months.

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To: linux-parisc <linux-parisc@vger.kernel.org>,
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/scripts/package/buildtar b/scripts/package/buildtar
index 28574ae..b1fd48d 100644
--- a/scripts/package/buildtar
+++ b/scripts/package/buildtar
@@ -75,6 +75,10 @@ case "${ARCH}" in
 	alpha)
 		[ -f "${objtree}/arch/alpha/boot/vmlinux.gz" ] && cp -v -- "${objtree}/arch/alpha/boot/vmlinux.gz" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
 		;;
+	parisc*)
+		[ -f "${KBUILD_IMAGE}" ] && cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
+		[ -f "${objtree}/lifimage" ] && cp -v -- "${objtree}/lifimage" "${tmpdir}/boot/lifimage-${KERNELRELEASE}"
+		;;
 	vax)
 		[ -f "${objtree}/vmlinux.SYS" ] && cp -v -- "${objtree}/vmlinux.SYS" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}.SYS"
 		[ -f "${objtree}/vmlinux.dsk" ] && cp -v -- "${objtree}/vmlinux.dsk" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}.dsk"
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From - Thu Nov 08 21:03:40 2018
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCH/RFC 1/5] rtc-parisc: Add missing module alias
Date: Fri, 20 Feb 2009 16:46:45 +0100
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Cc: rtc-linux@googlegroups.com, Kyle McMartin <kyle@mcmartin.ca>,
	David Woodhouse <dwmw2@infradead.org>,
	Richard Zidlicky <rz@linux-m68k.org>,
	linux-parisc@vger.kernel.org, linuxppc-dev@ozlabs.org,
	linux-m68k@lists.linux-m68k.org, linux-kernel@vger.kernel.org,
	Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
To: Alessandro Zummo <a.zummo@towertech.it>
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Make udev autoload the driver

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
---
 drivers/rtc/rtc-parisc.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
index c6bfa6f..28fb7d3 100644
--- a/drivers/rtc/rtc-parisc.c
+++ b/drivers/rtc/rtc-parisc.c
@@ -110,3 +110,4 @@ module_exit(parisc_rtc_fini);
 MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("HP PA-RISC RTC driver");
+MODULE_ALIAS("platform:rtc-parisc");
-- 
1.6.0.4

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From - Thu Nov 08 21:03:40 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCH/RFC 3/5] m68k: Enable rtc-generic
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To: Alessandro Zummo <a.zummo@towertech.it>
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Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
---
 arch/m68k/Kconfig       |    4 ++++
 arch/m68k/kernel/time.c |   21 +++++++++++++++++++++
 2 files changed, 25 insertions(+), 0 deletions(-)

diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index fb87c08..9d2565e 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -27,6 +27,10 @@ config ARCH_HAS_ILOG2_U64
 	bool
 	default n
 
+config ARCH_HAS_GENERIC_RTC
+	bool
+	default y
+
 config GENERIC_HWEIGHT
 	bool
 	default y
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 7db4159..b26933f 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -18,6 +18,7 @@
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/rtc.h>
+#include <linux/platform_device.h>
 
 #include <asm/machdep.h>
 #include <asm/io.h>
@@ -159,3 +160,23 @@ int do_settimeofday(struct timespec *tv)
 }
 
 EXPORT_SYMBOL(do_settimeofday);
+
+
+static struct platform_device rtc_generic_dev = {
+	.name = "rtc-generic",
+	.id = -1,
+};
+
+static int __init rtc_init(void)
+{
+	int ret;
+
+	ret = platform_device_register(&rtc_generic_dev);
+	if (ret < 0)
+		pr_err("Unable to register rtc device...\n");
+
+	/* not necessarily an error */
+	return 0;
+}
+
+module_init(rtc_init);
-- 
1.6.0.4

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From - Thu Nov 08 21:03:40 2018
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCH/RFC 4/5] powerpc: Enable rtc-generic, and kill rtc-ppc
Date: Fri, 20 Feb 2009 16:46:48 +0100
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Cc: rtc-linux@googlegroups.com, Kyle McMartin <kyle@mcmartin.ca>,
	David Woodhouse <dwmw2@infradead.org>,
	Richard Zidlicky <rz@linux-m68k.org>,
	linux-parisc@vger.kernel.org, linuxppc-dev@ozlabs.org,
	linux-m68k@lists.linux-m68k.org, linux-kernel@vger.kernel.org,
	Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
To: Alessandro Zummo <a.zummo@towertech.it>
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Create the "rtc-generic" platform device if ppc_md.get_rtc_time is set.
Kill rtc-ppc, as rtc-generic offers the same functionality in a more ge=
neric
way.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
---
 arch/powerpc/Kconfig       |    4 ++
 arch/powerpc/kernel/time.c |   22 ++++++++++++++
 drivers/rtc/Kconfig        |    8 -----
 drivers/rtc/Makefile       |    1 -
 drivers/rtc/rtc-ppc.c      |   69 ------------------------------------=
--------
 5 files changed, 26 insertions(+), 78 deletions(-)
 delete mode 100644 drivers/rtc/rtc-ppc.c

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 40b7981..82e47b0 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -85,6 +85,10 @@ config ARCH_HAS_ILOG2_U64
 	bool
 	default y if 64BIT
=20
+config ARCH_HAS_GENERIC_RTC
+	bool
+	default y
+
 config GENERIC_HWEIGHT
 	bool
 	default y
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index c956403..616c7d3 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -1127,3 +1127,25 @@ void div128_by_32(u64 dividend_high, u64 dividen=
d_low,
 	dr->result_low  =3D ((u64)y << 32) + z;
=20
 }
+
+static struct platform_device rtc_generic_dev =3D {
+	.name =3D "rtc-generic",
+	.id =3D -1,
+};
+
+static int __init rtc_init(void)
+{
+	int ret;
+
+	if (!ppc_md.get_rtc_time)
+		return -ENODEV;
+
+	ret =3D platform_device_register(&rtc_generic_dev);
+	if (ret < 0)
+		pr_err("Unable to register rtc device...\n");
+
+	/* not necessarily an error */
+	return 0;
+}
+
+module_init(rtc_init);
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 3e58182..9964a72 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -685,14 +685,6 @@ config RTC_DRV_GENERIC
 	  RTC abstraction. If you do not know what you are doing, you should
 	  just say Y.
=20
-config RTC_DRV_PPC
-       tristate "PowerPC machine dependent RTC support"
-       depends on PPC
-       help
-	 The PowerPC kernel has machine-specific functions for accessing
-	 the RTC. This exposes that functionality through the generic RTC
-	 class.
-
 config RTC_DRV_PXA
        tristate "PXA27x/PXA3xx"
        depends on ARCH_PXA
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 9c18a01..bd209a5 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -56,7 +56,6 @@ obj-$(CONFIG_RTC_DRV_PCF8583)	+=3D rtc-pcf8583.o
 obj-$(CONFIG_RTC_DRV_PL030)	+=3D rtc-pl030.o
 obj-$(CONFIG_RTC_DRV_PL031)	+=3D rtc-pl031.o
 obj-$(CONFIG_RTC_DRV_GENERIC)	+=3D rtc-generic.o
-obj-$(CONFIG_RTC_DRV_PPC)	+=3D rtc-ppc.o
 obj-$(CONFIG_RTC_DRV_PXA)	+=3D rtc-pxa.o
 obj-$(CONFIG_RTC_DRV_R9701)	+=3D rtc-r9701.o
 obj-$(CONFIG_RTC_DRV_RS5C313)	+=3D rtc-rs5c313.o
diff --git a/drivers/rtc/rtc-ppc.c b/drivers/rtc/rtc-ppc.c
deleted file mode 100644
index c8e97e2..0000000
--- a/drivers/rtc/rtc-ppc.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * RTC driver for ppc_md RTC functions
- *
- * =C2=A9 2007 Red Hat, Inc.
- *
- * Author: David Woodhouse <dwmw2@infradead.org>
- *
- * This program is free software; you can redistribute it and/or modif=
y
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/rtc.h>
-#include <linux/platform_device.h>
-#include <asm/machdep.h>
-
-static int ppc_rtc_read_time(struct device *dev, struct rtc_time *tm)
-{
-	ppc_md.get_rtc_time(tm);
-	return 0;
-}
-
-static int ppc_rtc_set_time(struct device *dev, struct rtc_time *tm)
-{
-	return ppc_md.set_rtc_time(tm);
-}
-
-static const struct rtc_class_ops ppc_rtc_ops =3D {
-	.set_time =3D ppc_rtc_set_time,
-	.read_time =3D ppc_rtc_read_time,
-};
-
-static struct rtc_device *rtc;
-static struct platform_device *ppc_rtc_pdev;
-
-static int __init ppc_rtc_init(void)
-{
-	if (!ppc_md.get_rtc_time || !ppc_md.set_rtc_time)
-		return -ENODEV;
-
-	ppc_rtc_pdev =3D platform_device_register_simple("ppc-rtc", 0, NULL, =
0);
-	if (IS_ERR(ppc_rtc_pdev))
-		return PTR_ERR(ppc_rtc_pdev);
-
-	rtc =3D rtc_device_register("ppc_md", &ppc_rtc_pdev->dev,
-				  &ppc_rtc_ops, THIS_MODULE);
-	if (IS_ERR(rtc)) {
-		platform_device_unregister(ppc_rtc_pdev);
-		return PTR_ERR(rtc);
-	}
-
-	return 0;
-}
-
-static void __exit ppc_rtc_exit(void)
-{
-	rtc_device_unregister(rtc);
-	platform_device_unregister(ppc_rtc_pdev);
-}
-
-module_init(ppc_rtc_init);
-module_exit(ppc_rtc_exit);

From - Thu Nov 08 21:03:41 2018
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCH/RFC 2/5] pa-risc: Rename rtc-parisc to rtc-generic
Date: Fri, 20 Feb 2009 16:46:46 +0100
Lines: 346
Approved: news@gmane.org
Message-ID: <1235144809-32468-3-git-send-email-Geert.Uytterhoeven@sonycom.com>
References: <1235144809-32468-1-git-send-email-Geert.Uytterhoeven@sonycom.com>
 <1235144809-32468-2-git-send-email-Geert.Uytterhoeven@sonycom.com>
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NNTP-Posting-Date: Fri, 20 Feb 2009 15:47:59 +0000 (UTC)
Cc: rtc-linux@googlegroups.com, Kyle McMartin <kyle@mcmartin.ca>,
	David Woodhouse <dwmw2@infradead.org>,
	Richard Zidlicky <rz@linux-m68k.org>,
	linux-parisc@vger.kernel.org, linuxppc-dev@ozlabs.org,
	linux-m68k@lists.linux-m68k.org, linux-kernel@vger.kernel.org,
	Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
To: Alessandro Zummo <a.zummo@towertech.it>
Original-X-From: linux-m68k-owner@vger.kernel.org Fri Feb 20 16:49:13 2009
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Xref: news.gmane.org gmane.linux.ports.m68k:464 gmane.linux.ports.parisc:1300 gmane.linux.ports.ppc64.devel:52714 gmane.linux.kernel:797431
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1300>

The rtc-parisc driver is not PA-RISC specific at all, as it uses the existing
generic RTC infrastructure ([gs]et_rtc_time()).
Rename the driver from rtc-parisc to rtc-generic, and make it depend on the new
Kconfig symbol ARCH_HAS_GENERIC_RTC.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
---
 arch/parisc/Kconfig       |    6 ++-
 arch/parisc/kernel/time.c |    6 +-
 drivers/rtc/Kconfig       |   10 ++--
 drivers/rtc/Makefile      |    2 +-
 drivers/rtc/rtc-generic.c |  113 +++++++++++++++++++++++++++++++++++++++++++++
 drivers/rtc/rtc-parisc.c  |  113 ---------------------------------------------
 6 files changed, 127 insertions(+), 123 deletions(-)
 create mode 100644 drivers/rtc/rtc-generic.c
 delete mode 100644 drivers/rtc/rtc-parisc.c

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index aacf11d..cacb3a1 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -10,7 +10,7 @@ config PARISC
 	select HAVE_IDE
 	select HAVE_OPROFILE
 	select RTC_CLASS
-	select RTC_DRV_PARISC
+	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
@@ -43,6 +43,10 @@ config ARCH_HAS_ILOG2_U64
 	bool
 	default n
 
+config ARCH_HAS_GENERIC_RTC
+	bool
+	default y
+
 config GENERIC_FIND_NEXT_BIT
 	bool
 	default y
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 9d46c43..849f460 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -216,8 +216,8 @@ void __init start_cpu_itimer(void)
 	per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
-struct platform_device rtc_parisc_dev = {
-	.name = "rtc-parisc",
+static struct platform_device rtc_generic_dev = {
+	.name = "rtc-generic",
 	.id = -1,
 };
 
@@ -225,7 +225,7 @@ static int __init rtc_init(void)
 {
 	int ret;
 
-	ret = platform_device_register(&rtc_parisc_dev);
+	ret = platform_device_register(&rtc_generic_dev);
 	if (ret < 0)
 		printk(KERN_ERR "unable to register rtc device...\n");
 
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 81450fb..3e58182 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -677,12 +677,12 @@ config RTC_DRV_RS5C313
 	help
 	  If you say yes here you get support for the Ricoh RS5C313 RTC chips.
 
-config RTC_DRV_PARISC
-	tristate "PA-RISC firmware RTC support"
-	depends on PARISC
+config RTC_DRV_GENERIC
+	tristate "Generic RTC support"
+	depends on ARCH_HAS_GENERIC_RTC
 	help
-	  Say Y or M here to enable RTC support on PA-RISC systems using
-	  firmware calls. If you do not know what you are doing, you should
+	  Say Y or M here to enable RTC support on systems using the generic
+	  RTC abstraction. If you do not know what you are doing, you should
 	  just say Y.
 
 config RTC_DRV_PPC
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 0e697aa..9c18a01 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -55,7 +55,7 @@ obj-$(CONFIG_RTC_DRV_PCF8563)	+= rtc-pcf8563.o
 obj-$(CONFIG_RTC_DRV_PCF8583)	+= rtc-pcf8583.o
 obj-$(CONFIG_RTC_DRV_PL030)	+= rtc-pl030.o
 obj-$(CONFIG_RTC_DRV_PL031)	+= rtc-pl031.o
-obj-$(CONFIG_RTC_DRV_PARISC)	+= rtc-parisc.o
+obj-$(CONFIG_RTC_DRV_GENERIC)	+= rtc-generic.o
 obj-$(CONFIG_RTC_DRV_PPC)	+= rtc-ppc.o
 obj-$(CONFIG_RTC_DRV_PXA)	+= rtc-pxa.o
 obj-$(CONFIG_RTC_DRV_R9701)	+= rtc-r9701.o
diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
new file mode 100644
index 0000000..b744c7d
--- /dev/null
+++ b/drivers/rtc/rtc-generic.c
@@ -0,0 +1,113 @@
+/* rtc-generic: RTC driver using the generic RTC abstraction
+ *
+ * Copyright (C) 2008 Kyle McMartin <kyle@mcmartin.ca>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/platform_device.h>
+
+#include <asm/rtc.h>
+
+/* as simple as can be, and no simpler. */
+struct generic_rtc {
+	struct rtc_device *rtc;
+	spinlock_t lock;
+};
+
+static int generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	struct generic_rtc *p = dev_get_drvdata(dev);
+	unsigned long flags, ret;
+
+	spin_lock_irqsave(&p->lock, flags);
+	ret = get_rtc_time(tm);
+	spin_unlock_irqrestore(&p->lock, flags);
+
+	if (ret & RTC_BATT_BAD)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
+static int generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	struct generic_rtc *p = dev_get_drvdata(dev);
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&p->lock, flags);
+	ret = set_rtc_time(tm);
+	spin_unlock_irqrestore(&p->lock, flags);
+
+	if (ret < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
+static const struct rtc_class_ops generic_rtc_ops = {
+	.read_time = generic_get_time,
+	.set_time = generic_set_time,
+};
+
+static int __devinit generic_rtc_probe(struct platform_device *dev)
+{
+	struct generic_rtc *p;
+
+	p = kzalloc(sizeof (*p), GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+
+	spin_lock_init(&p->lock);
+
+	p->rtc = rtc_device_register("rtc-generic", &dev->dev,
+				     &generic_rtc_ops, THIS_MODULE);
+	if (IS_ERR(p->rtc)) {
+		int err = PTR_ERR(p->rtc);
+		kfree(p);
+		return err;
+	}
+
+	platform_set_drvdata(dev, p);
+
+	return 0;
+}
+
+static int __devexit generic_rtc_remove(struct platform_device *dev)
+{
+	struct generic_rtc *p = platform_get_drvdata(dev);
+
+	rtc_device_unregister(p->rtc);
+	kfree(p);
+
+	return 0;
+}
+
+static struct platform_driver generic_rtc_driver = {
+	.driver = {
+		.name = "rtc-generic",
+		.owner = THIS_MODULE,
+	},
+	.probe = generic_rtc_probe,
+	.remove = __devexit_p(generic_rtc_remove),
+};
+
+static int __init generic_rtc_init(void)
+{
+	return platform_driver_register(&generic_rtc_driver);
+}
+
+static void __exit generic_rtc_fini(void)
+{
+	platform_driver_unregister(&generic_rtc_driver);
+}
+
+module_init(generic_rtc_init);
+module_exit(generic_rtc_fini);
+
+MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Generic RTC driver");
+MODULE_ALIAS("platform:rtc-generic");
diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
deleted file mode 100644
index 28fb7d3..0000000
--- a/drivers/rtc/rtc-parisc.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/* rtc-parisc: RTC for HP PA-RISC firmware
- *
- * Copyright (C) 2008 Kyle McMartin <kyle@mcmartin.ca>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/time.h>
-#include <linux/platform_device.h>
-
-#include <asm/rtc.h>
-
-/* as simple as can be, and no simpler. */
-struct parisc_rtc {
-	struct rtc_device *rtc;
-	spinlock_t lock;
-};
-
-static int parisc_get_time(struct device *dev, struct rtc_time *tm)
-{
-	struct parisc_rtc *p = dev_get_drvdata(dev);
-	unsigned long flags, ret;
-
-	spin_lock_irqsave(&p->lock, flags);
-	ret = get_rtc_time(tm);
-	spin_unlock_irqrestore(&p->lock, flags);
-
-	if (ret & RTC_BATT_BAD)
-		return -EOPNOTSUPP;
-
-	return 0;
-}
-
-static int parisc_set_time(struct device *dev, struct rtc_time *tm)
-{
-	struct parisc_rtc *p = dev_get_drvdata(dev);
-	unsigned long flags;
-	int ret;
-
-	spin_lock_irqsave(&p->lock, flags);
-	ret = set_rtc_time(tm);
-	spin_unlock_irqrestore(&p->lock, flags);
-
-	if (ret < 0)
-		return -EOPNOTSUPP;
-
-	return 0;
-}
-
-static const struct rtc_class_ops parisc_rtc_ops = {
-	.read_time = parisc_get_time,
-	.set_time = parisc_set_time,
-};
-
-static int __devinit parisc_rtc_probe(struct platform_device *dev)
-{
-	struct parisc_rtc *p;
-
-	p = kzalloc(sizeof (*p), GFP_KERNEL);
-	if (!p)
-		return -ENOMEM;
-
-	spin_lock_init(&p->lock);
-
-	p->rtc = rtc_device_register("rtc-parisc", &dev->dev, &parisc_rtc_ops,
-					THIS_MODULE);
-	if (IS_ERR(p->rtc)) {
-		int err = PTR_ERR(p->rtc);
-		kfree(p);
-		return err;
-	}
-
-	platform_set_drvdata(dev, p);
-
-	return 0;
-}
-
-static int __devexit parisc_rtc_remove(struct platform_device *dev)
-{
-	struct parisc_rtc *p = platform_get_drvdata(dev);
-
-	rtc_device_unregister(p->rtc);
-	kfree(p);
-
-	return 0;
-}
-
-static struct platform_driver parisc_rtc_driver = {
-	.driver = {
-		.name = "rtc-parisc",
-		.owner = THIS_MODULE,
-	},
-	.probe = parisc_rtc_probe,
-	.remove = __devexit_p(parisc_rtc_remove),
-};
-
-static int __init parisc_rtc_init(void)
-{
-	return platform_driver_register(&parisc_rtc_driver);
-}
-
-static void __exit parisc_rtc_fini(void)
-{
-	platform_driver_unregister(&parisc_rtc_driver);
-}
-
-module_init(parisc_rtc_init);
-module_exit(parisc_rtc_fini);
-
-MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("HP PA-RISC RTC driver");
-MODULE_ALIAS("platform:rtc-parisc");
-- 
1.6.0.4

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From - Thu Nov 08 21:03:41 2018
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X-Mozilla-Keys:                                                                                 
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCH/RFC 0/5] Generic RTC class driver
Date: Fri, 20 Feb 2009 16:46:44 +0100
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Cc: rtc-linux@googlegroups.com, Kyle McMartin <kyle@mcmartin.ca>,
	David Woodhouse <dwmw2@infradead.org>,
	Richard Zidlicky <rz@linux-m68k.org>,
	linux-parisc@vger.kernel.org, linuxppc-dev@ozlabs.org,
	linux-m68k@lists.linux-m68k.org, linux-kernel@vger.kernel.org
To: Alessandro Zummo <a.zummo@towertech.it>
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I've been looking into problems with auto-loading the RTC driver on PPC=
 (more
specifically on PS3):
  - The recent "rtc-ppc" RTC class driver is not autoloaded by udev bec=
ause
    it's an old style platform driver that contains its own platform de=
vice.
  - The alternative old "genrtc" driver is autoloaded on non-udev syste=
ms only
    because it contains the module alias char-major-10-135. However, it=
's not
    a new-style RTC class driver.

=46ortunately there already exists a generic RTC class driver: "rtc-par=
isc".
Despite it's name, it's platform-independent, as it's build on top of t=
he RTC
abstraction used by "genrtc".

This patch series
  - adds a missing module alias to rtc-parisc,
  - renames rtc-parisc to rtc-generic,
  - converts the architectures that currently have CONFIG_GEN_RTC enabl=
ed in
    their defconfig (m68k, parisc, powerpc) to rtc-generic,
  - removes the obsolete rtc-ppc driver,
  - removes the old genrtc driver.
 =20
Note that genrtc may be used on other archictectures as well: at least =
alpha
has the required infrastructure ([gs]et_rtc_time()). The Kconfig rules =
allow
genrtc to be enabled on several others (cris, h8300, mn10300, um, x86, =
xtensa).

=46urthermore genrtc and rtc-generic are not 100% userspace compatible:
  - /dev/rtc provided by genrtc uses a misc character device (10:135),
  - /dev/rtc provided by rtc-generic uses a dynamic character device.
 =20
So perhaps we don't want to kill gen-rtc yet?

Any comments are welcomed!

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =C2=B7 Da Vincilaan 7-D1 =C2=B7 B-1935 Zaventem =C2=
=B7 Belgium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCH/RFC 5/5] rtc: Kill genrtc, as all its users have been converted to rtc-generic
Date: Fri, 20 Feb 2009 16:46:49 +0100
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Cc: rtc-linux@googlegroups.com, Kyle McMartin <kyle@mcmartin.ca>,
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Warning: genrtc and rtc-generic are not 100% userspace compatible:
  - /dev/rtc provided by genrtc uses a misc character device (10:135)
  - /dev/rtc provided by rtc-generic uses a dynamic character device

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
---
 drivers/char/Kconfig  |   25 ---
 drivers/char/Makefile |    1 -
 drivers/char/genrtc.c |  527 -------------------------------------------------
 3 files changed, 0 insertions(+), 553 deletions(-)
 delete mode 100644 drivers/char/genrtc.c

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 735bbe2..c0960a1 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -840,31 +840,6 @@ config JS_RTC
 	  To compile this driver as a module, choose M here: the
 	  module will be called js-rtc.
 
-config GEN_RTC
-	tristate "Generic /dev/rtc emulation"
-	depends on RTC!=y && !IA64 && !ARM && !M32R && !MIPS && !SPARC && !FRV && !S390 && !SUPERH && !AVR32 && !BLACKFIN
-	---help---
-	  If you say Y here and create a character special file /dev/rtc with
-	  major number 10 and minor number 135 using mknod ("man mknod"), you
-	  will get access to the real time clock (or hardware clock) built
-	  into your computer.
-
-	  It reports status information via the file /proc/driver/rtc and its
-	  behaviour is set by various ioctls on /dev/rtc. If you enable the
-	  "extended RTC operation" below it will also provide an emulation
-	  for RTC_UIE which is required by some programs and may improve
-	  precision in some cases.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called genrtc.
-
-config GEN_RTC_X
-	bool "Extended RTC operation"
-	depends on GEN_RTC
-	help
-	  Provides an emulation for RTC_UIE which is required by some programs
-	  and may improve precision of the generic RTC support in some cases.
-
 config EFI_RTC
 	bool "EFI Real Time Clock Services"
 	depends on IA64
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 565e473..c9432f0 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -75,7 +75,6 @@ obj-$(CONFIG_APPLICOM)		+= applicom.o
 obj-$(CONFIG_SONYPI)		+= sonypi.o
 obj-$(CONFIG_RTC)		+= rtc.o
 obj-$(CONFIG_HPET)		+= hpet.o
-obj-$(CONFIG_GEN_RTC)		+= genrtc.o
 obj-$(CONFIG_EFI_RTC)		+= efirtc.o
 obj-$(CONFIG_DS1302)		+= ds1302.o
 obj-$(CONFIG_XILINX_HWICAP)	+= xilinx_hwicap/
diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
deleted file mode 100644
index aac0985..0000000
--- a/drivers/char/genrtc.c
+++ /dev/null
@@ -1,527 +0,0 @@
-/*
- *	Real Time Clock interface for
- *		- q40 and other m68k machines,
- *		- HP PARISC machines
- *		- PowerPC machines
- *      emulate some RTC irq capabilities in software
- *
- *      Copyright (C) 1999 Richard Zidlicky
- *
- *	based on Paul Gortmaker's rtc.c device and
- *           Sam Creasey Generic rtc driver
- *
- *	This driver allows use of the real time clock (built into
- *	nearly all computers) from user space. It exports the /dev/rtc
- *	interface supporting various ioctl() and also the /proc/driver/rtc
- *	pseudo-file for status information.
- *
- *	The ioctls can be used to set the interrupt behaviour where
- *	supported.
- *
- *	The /dev/rtc interface will block on reads until an interrupt
- *	has been received. If a RTC interrupt has already happened,
- *	it will output an unsigned long and then block. The output value
- *	contains the interrupt status in the low byte and the number of
- *	interrupts since the last read in the remaining high bytes. The
- *	/dev/rtc interface can also be used with the select(2) call.
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
- *
-
- *      1.01 fix for 2.3.X                    rz@linux-m68k.org
- *      1.02 merged with code from genrtc.c   rz@linux-m68k.org
- *      1.03 make it more portable            zippel@linux-m68k.org
- *      1.04 removed useless timer code       rz@linux-m68k.org
- *      1.05 portable RTC_UIE emulation       rz@linux-m68k.org
- *      1.06 set_rtc_time can return an error trini@kernel.crashing.org
- *      1.07 ported to HP PARISC (hppa)	      Helge Deller <deller@gmx.de>
- */
-
-#define RTC_VERSION	"1.07"
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/miscdevice.h>
-#include <linux/fcntl.h>
-
-#include <linux/rtc.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/proc_fs.h>
-#include <linux/smp_lock.h>
-#include <linux/workqueue.h>
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/rtc.h>
-
-/*
- *	We sponge a minor off of the misc major. No need slurping
- *	up another valuable major dev number for this. If you add
- *	an ioctl, make sure you don't conflict with SPARC's RTC
- *	ioctls.
- */
-
-static DECLARE_WAIT_QUEUE_HEAD(gen_rtc_wait);
-
-/*
- *	Bits in gen_rtc_status.
- */
-
-#define RTC_IS_OPEN		0x01	/* means /dev/rtc is in use	*/
-
-static unsigned char gen_rtc_status;	/* bitmapped status byte.	*/
-static unsigned long gen_rtc_irq_data;	/* our output to the world	*/
-
-/* months start at 0 now */
-static unsigned char days_in_mo[] =
-{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
-
-static int irq_active;
-
-#ifdef CONFIG_GEN_RTC_X
-static struct work_struct genrtc_task;
-static struct timer_list timer_task;
-
-static unsigned int oldsecs;
-static int lostint;
-static unsigned long tt_exp;
-
-static void gen_rtc_timer(unsigned long data);
-
-static volatile int stask_active;              /* schedule_work */
-static volatile int ttask_active;              /* timer_task */
-static int stop_rtc_timers;                    /* don't requeue tasks */
-static DEFINE_SPINLOCK(gen_rtc_lock);
-
-static void gen_rtc_interrupt(unsigned long arg);
-
-/*
- * Routine to poll RTC seconds field for change as often as possible,
- * after first RTC_UIE use timer to reduce polling
- */
-static void genrtc_troutine(struct work_struct *work)
-{
-	unsigned int tmp = get_rtc_ss();
-	
-	if (stop_rtc_timers) {
-		stask_active = 0;
-		return;
-	}
-
-	if (oldsecs != tmp){
-		oldsecs = tmp;
-
-		timer_task.function = gen_rtc_timer;
-		timer_task.expires = jiffies + HZ - (HZ/10);
-		tt_exp=timer_task.expires;
-		ttask_active=1;
-		stask_active=0;
-		add_timer(&timer_task);
-
-		gen_rtc_interrupt(0);
-	} else if (schedule_work(&genrtc_task) == 0)
-		stask_active = 0;
-}
-
-static void gen_rtc_timer(unsigned long data)
-{
-	lostint = get_rtc_ss() - oldsecs ;
-	if (lostint<0) 
-		lostint = 60 - lostint;
-	if (time_after(jiffies, tt_exp))
-		printk(KERN_INFO "genrtc: timer task delayed by %ld jiffies\n",
-		       jiffies-tt_exp);
-	ttask_active=0;
-	stask_active=1;
-	if ((schedule_work(&genrtc_task) == 0))
-		stask_active = 0;
-}
-
-/* 
- * call gen_rtc_interrupt function to signal an RTC_UIE,
- * arg is unused.
- * Could be invoked either from a real interrupt handler or
- * from some routine that periodically (eg 100HZ) monitors
- * whether RTC_SECS changed
- */
-static void gen_rtc_interrupt(unsigned long arg)
-{
-	/*  We store the status in the low byte and the number of
-	 *	interrupts received since the last read in the remainder
-	 *	of rtc_irq_data.  */
-
-	gen_rtc_irq_data += 0x100;
-	gen_rtc_irq_data &= ~0xff;
-	gen_rtc_irq_data |= RTC_UIE;
-
-	if (lostint){
-		printk("genrtc: system delaying clock ticks?\n");
-		/* increment count so that userspace knows something is wrong */
-		gen_rtc_irq_data += ((lostint-1)<<8);
-		lostint = 0;
-	}
-
-	wake_up_interruptible(&gen_rtc_wait);
-}
-
-/*
- *	Now all the various file operations that we export.
- */
-static ssize_t gen_rtc_read(struct file *file, char __user *buf,
-			size_t count, loff_t *ppos)
-{
-	unsigned long data;
-	ssize_t retval;
-
-	if (count != sizeof (unsigned int) && count != sizeof (unsigned long))
-		return -EINVAL;
-
-	if (file->f_flags & O_NONBLOCK && !gen_rtc_irq_data)
-		return -EAGAIN;
-
-	retval = wait_event_interruptible(gen_rtc_wait,
-			(data = xchg(&gen_rtc_irq_data, 0)));
-	if (retval)
-		goto out;
-
-	/* first test allows optimizer to nuke this case for 32-bit machines */
-	if (sizeof (int) != sizeof (long) && count == sizeof (unsigned int)) {
-		unsigned int uidata = data;
-		retval = put_user(uidata, (unsigned int __user *)buf) ?:
-			sizeof(unsigned int);
-	}
-	else {
-		retval = put_user(data, (unsigned long __user *)buf) ?:
-			sizeof(unsigned long);
-	}
-out:
-	return retval;
-}
-
-static unsigned int gen_rtc_poll(struct file *file,
-				 struct poll_table_struct *wait)
-{
-	poll_wait(file, &gen_rtc_wait, wait);
-	if (gen_rtc_irq_data != 0)
-		return POLLIN | POLLRDNORM;
-	return 0;
-}
-
-#endif
-
-/*
- * Used to disable/enable interrupts, only RTC_UIE supported
- * We also clear out any old irq data after an ioctl() that
- * meddles with the interrupt enable/disable bits.
- */
-
-static inline void gen_clear_rtc_irq_bit(unsigned char bit)
-{
-#ifdef CONFIG_GEN_RTC_X
-	stop_rtc_timers = 1;
-	if (ttask_active){
-		del_timer_sync(&timer_task);
-		ttask_active = 0;
-	}
-	while (stask_active)
-		schedule();
-
-	spin_lock(&gen_rtc_lock);
-	irq_active = 0;
-	spin_unlock(&gen_rtc_lock);
-#endif
-}
-
-static inline int gen_set_rtc_irq_bit(unsigned char bit)
-{
-#ifdef CONFIG_GEN_RTC_X
-	spin_lock(&gen_rtc_lock);
-	if ( !irq_active ) {
-		irq_active = 1;
-		stop_rtc_timers = 0;
-		lostint = 0;
-		INIT_WORK(&genrtc_task, genrtc_troutine);
-		oldsecs = get_rtc_ss();
-		init_timer(&timer_task);
-
-		stask_active = 1;
-		if (schedule_work(&genrtc_task) == 0){
-			stask_active = 0;
-		}
-	}
-	spin_unlock(&gen_rtc_lock);
-	gen_rtc_irq_data = 0;
-	return 0;
-#else
-	return -EINVAL;
-#endif
-}
-
-static int gen_rtc_ioctl(struct inode *inode, struct file *file,
-			 unsigned int cmd, unsigned long arg)
-{
-	struct rtc_time wtime;
-	struct rtc_pll_info pll;
-	void __user *argp = (void __user *)arg;
-
-	switch (cmd) {
-
-	case RTC_PLL_GET:
-	    if (get_rtc_pll(&pll))
-	 	    return -EINVAL;
-	    else
-		    return copy_to_user(argp, &pll, sizeof pll) ? -EFAULT : 0;
-
-	case RTC_PLL_SET:
-		if (!capable(CAP_SYS_TIME))
-			return -EACCES;
-		if (copy_from_user(&pll, argp, sizeof(pll)))
-			return -EFAULT;
-	    return set_rtc_pll(&pll);
-
-	case RTC_UIE_OFF:	/* disable ints from RTC updates.	*/
-		gen_clear_rtc_irq_bit(RTC_UIE);
-		return 0;
-
-	case RTC_UIE_ON:	/* enable ints for RTC updates.	*/
-	        return gen_set_rtc_irq_bit(RTC_UIE);
-
-	case RTC_RD_TIME:	/* Read the time/date from RTC	*/
-		/* this doesn't get week-day, who cares */
-		memset(&wtime, 0, sizeof(wtime));
-		get_rtc_time(&wtime);
-
-		return copy_to_user(argp, &wtime, sizeof(wtime)) ? -EFAULT : 0;
-
-	case RTC_SET_TIME:	/* Set the RTC */
-	    {
-		int year;
-		unsigned char leap_yr;
-
-		if (!capable(CAP_SYS_TIME))
-			return -EACCES;
-
-		if (copy_from_user(&wtime, argp, sizeof(wtime)))
-			return -EFAULT;
-
-		year = wtime.tm_year + 1900;
-		leap_yr = ((!(year % 4) && (year % 100)) ||
-			   !(year % 400));
-
-		if ((wtime.tm_mon < 0 || wtime.tm_mon > 11) || (wtime.tm_mday < 1))
-			return -EINVAL;
-
-		if (wtime.tm_mday < 0 || wtime.tm_mday >
-		    (days_in_mo[wtime.tm_mon] + ((wtime.tm_mon == 1) && leap_yr)))
-			return -EINVAL;
-
-		if (wtime.tm_hour < 0 || wtime.tm_hour >= 24 ||
-		    wtime.tm_min < 0 || wtime.tm_min >= 60 ||
-		    wtime.tm_sec < 0 || wtime.tm_sec >= 60)
-			return -EINVAL;
-
-		return set_rtc_time(&wtime);
-	    }
-	}
-
-	return -EINVAL;
-}
-
-/*
- *	We enforce only one user at a time here with the open/close.
- *	Also clear the previous interrupt data on an open, and clean
- *	up things on a close.
- */
-
-static int gen_rtc_open(struct inode *inode, struct file *file)
-{
-	lock_kernel();
-	if (gen_rtc_status & RTC_IS_OPEN) {
-		unlock_kernel();
-		return -EBUSY;
-	}
-
-	gen_rtc_status |= RTC_IS_OPEN;
-	gen_rtc_irq_data = 0;
-	irq_active = 0;
-	unlock_kernel();
-
-	return 0;
-}
-
-static int gen_rtc_release(struct inode *inode, struct file *file)
-{
-	/*
-	 * Turn off all interrupts once the device is no longer
-	 * in use and clear the data.
-	 */
-
-	gen_clear_rtc_irq_bit(RTC_PIE|RTC_AIE|RTC_UIE);
-
-	gen_rtc_status &= ~RTC_IS_OPEN;
-	return 0;
-}
-
-
-#ifdef CONFIG_PROC_FS
-
-/*
- *	Info exported via "/proc/driver/rtc".
- */
-
-static int gen_rtc_proc_output(char *buf)
-{
-	char *p;
-	struct rtc_time tm;
-	unsigned int flags;
-	struct rtc_pll_info pll;
-
-	p = buf;
-
-	flags = get_rtc_time(&tm);
-
-	p += sprintf(p,
-		     "rtc_time\t: %02d:%02d:%02d\n"
-		     "rtc_date\t: %04d-%02d-%02d\n"
-		     "rtc_epoch\t: %04u\n",
-		     tm.tm_hour, tm.tm_min, tm.tm_sec,
-		     tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, 1900);
-
-	tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
-
-	p += sprintf(p, "alarm\t\t: ");
-	if (tm.tm_hour <= 24)
-		p += sprintf(p, "%02d:", tm.tm_hour);
-	else
-		p += sprintf(p, "**:");
-
-	if (tm.tm_min <= 59)
-		p += sprintf(p, "%02d:", tm.tm_min);
-	else
-		p += sprintf(p, "**:");
-
-	if (tm.tm_sec <= 59)
-		p += sprintf(p, "%02d\n", tm.tm_sec);
-	else
-		p += sprintf(p, "**\n");
-
-	p += sprintf(p,
-		     "DST_enable\t: %s\n"
-		     "BCD\t\t: %s\n"
-		     "24hr\t\t: %s\n"
-		     "square_wave\t: %s\n"
-		     "alarm_IRQ\t: %s\n"
-		     "update_IRQ\t: %s\n"
-		     "periodic_IRQ\t: %s\n"
-		     "periodic_freq\t: %ld\n"
-		     "batt_status\t: %s\n",
-		     (flags & RTC_DST_EN) ? "yes" : "no",
-		     (flags & RTC_DM_BINARY) ? "no" : "yes",
-		     (flags & RTC_24H) ? "yes" : "no",
-		     (flags & RTC_SQWE) ? "yes" : "no",
-		     (flags & RTC_AIE) ? "yes" : "no",
-		     irq_active ? "yes" : "no",
-		     (flags & RTC_PIE) ? "yes" : "no",
-		     0L /* freq */,
-		     (flags & RTC_BATT_BAD) ? "bad" : "okay");
-	if (!get_rtc_pll(&pll))
-	    p += sprintf(p,
-			 "PLL adjustment\t: %d\n"
-			 "PLL max +ve adjustment\t: %d\n"
-			 "PLL max -ve adjustment\t: %d\n"
-			 "PLL +ve adjustment factor\t: %d\n"
-			 "PLL -ve adjustment factor\t: %d\n"
-			 "PLL frequency\t: %ld\n",
-			 pll.pll_value,
-			 pll.pll_max,
-			 pll.pll_min,
-			 pll.pll_posmult,
-			 pll.pll_negmult,
-			 pll.pll_clock);
-	return p - buf;
-}
-
-static int gen_rtc_read_proc(char *page, char **start, off_t off,
-			     int count, int *eof, void *data)
-{
-	int len = gen_rtc_proc_output (page);
-        if (len <= off+count) *eof = 1;
-	*start = page + off;
-	len -= off;
-        if (len>count) len = count;
-        if (len<0) len = 0;
-	return len;
-}
-
-static int __init gen_rtc_proc_init(void)
-{
-	struct proc_dir_entry *r;
-
-	r = create_proc_read_entry("driver/rtc", 0, NULL, gen_rtc_read_proc, NULL);
-	if (!r)
-		return -ENOMEM;
-	return 0;
-}
-#else
-static inline int gen_rtc_proc_init(void) { return 0; }
-#endif /* CONFIG_PROC_FS */
-
-
-/*
- *	The various file operations we support.
- */
-
-static const struct file_operations gen_rtc_fops = {
-	.owner		= THIS_MODULE,
-#ifdef CONFIG_GEN_RTC_X
-	.read		= gen_rtc_read,
-	.poll		= gen_rtc_poll,
-#endif
-	.ioctl		= gen_rtc_ioctl,
-	.open		= gen_rtc_open,
-	.release	= gen_rtc_release,
-};
-
-static struct miscdevice rtc_gen_dev =
-{
-	.minor		= RTC_MINOR,
-	.name		= "rtc",
-	.fops		= &gen_rtc_fops,
-};
-
-static int __init rtc_generic_init(void)
-{
-	int retval;
-
-	printk(KERN_INFO "Generic RTC Driver v%s\n", RTC_VERSION);
-
-	retval = misc_register(&rtc_gen_dev);
-	if (retval < 0)
-		return retval;
-
-	retval = gen_rtc_proc_init();
-	if (retval) {
-		misc_deregister(&rtc_gen_dev);
-		return retval;
-	}
-
-	return 0;
-}
-
-static void __exit rtc_generic_exit(void)
-{
-	remove_proc_entry ("driver/rtc", NULL);
-	misc_deregister(&rtc_gen_dev);
-}
-
-
-module_init(rtc_generic_init);
-module_exit(rtc_generic_exit);

From - Thu Nov 08 21:03:41 2018
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From: Alessandro Zummo <alessandro.zummo@towertech.it>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [rtc-linux] [PATCH/RFC 0/5] Generic RTC class driver
Date: Fri, 20 Feb 2009 17:04:54 +0100
Organization: Tower Technologies
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Cc: Geert.Uytterhoeven@sonycom.com, Kyle McMartin <kyle@mcmartin.ca>,
	David Woodhouse <dwmw2@infradead.org>,
	Richard Zidlicky <rz@linux-m68k.org>,
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On Fri, 20 Feb 2009 16:46:44 +0100
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:

> Fortunately there already exists a generic RTC class driver: "rtc-parisc".
> Despite it's name, it's platform-independent, as it's build on top of the RTC
> abstraction used by "genrtc".
> 
> This patch series
>   - adds a missing module alias to rtc-parisc,
>   - renames rtc-parisc to rtc-generic,
>   - converts the architectures that currently have CONFIG_GEN_RTC enabled in
>     their defconfig (m68k, parisc, powerpc) to rtc-generic,
>   - removes the obsolete rtc-ppc driver,
>   - removes the old genrtc driver.
>   
> Note that genrtc may be used on other archictectures as well: at least alpha
> has the required infrastructure ([gs]et_rtc_time()). The Kconfig rules allow
> genrtc to be enabled on several others (cris, h8300, mn10300, um, x86, xtensa).
> 
> Furthermore genrtc and rtc-generic are not 100% userspace compatible:
>   - /dev/rtc provided by genrtc uses a misc character device (10:135),
>   - /dev/rtc provided by rtc-generic uses a dynamic character device.

 Hello,

   my opinion on this kind of stuff is that I want to avoid the layering
 of implementations under the rtc subsystem. I'd rather prefer that each
 rtc device had its own driver. 
 
  I've made error in the past, by accepting such kind of drivers, and
 would like to avoid that it happens again.

  Regarding the user space, the assumption that a device has
 a fixed major:minor number should be dropped as well.

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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debian-hppa, linux-parisc,

I've been working on the linuxthreads to nptl transition over
the past week and I have had promising results. I managed
to debug several critical issues, and no blockers remain in
the implementation of compat symbols to fix the ABI transition.

This implementation is the first ports target to attempt to
override symbols in the nptl add-on, and as such the initial
implementation has a lot of code duplication which I hope
to reduce via future patches to libc proper. There were aslo
several stumbling blocks in being the first.

At present I have an initial implementation complete, along
with a testsuite to prove the implementation is correct.
Currently I am debugging the testsuite, because some of
the expected tests are not passing.

I will keep the list updated on my progress.

Cheers,
Carlos.
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From - Thu Nov 08 21:03:41 2018
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From: Luk Claes <luk@debian.org>
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Carlos O'Donell wrote:
> debian-hppa, linux-parisc,
> 
> I've been working on the linuxthreads to nptl transition over
> the past week and I have had promising results. I managed
> to debug several critical issues, and no blockers remain in
> the implementation of compat symbols to fix the ABI transition.
> 
> This implementation is the first ports target to attempt to
> override symbols in the nptl add-on, and as such the initial
> implementation has a lot of code duplication which I hope
> to reduce via future patches to libc proper. There were aslo
> several stumbling blocks in being the first.
> 
> At present I have an initial implementation complete, along
> with a testsuite to prove the implementation is correct.
> Currently I am debugging the testsuite, because some of
> the expected tests are not passing.
> 
> I will keep the list updated on my progress.

Thanks for the update. Please do share the code soon so other people can
help test and improve it.

Cheers

Luk
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From - Thu Nov 08 21:03:41 2018
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Cc: Jean-Pierre HOFER <jph@stephenson.dhis.org>,
	debian-hppa@lists.debian.org,
	linux-parisc <linux-parisc@vger.kernel.org>
To: Helge Deller <deller@gmx.de>
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On Sun, Feb 15, 2009 at 11:54:58AM +0100, Helge Deller wrote:
> Hi Jean-Pierre,
> (added linux-parisc mailing list)
> 
> I just tested the debian kernel on my c3k.

c3k is a totally different chipset and MMIO mapping than
the C360 (original problem report).

> For me a small external USB disk (250GB disk) attached to the USB bus worked fine.
> Just for reference, I've uploaded my dmesg file here: http://userweb.kernel.org/~deller/usbdisk.c3k/dmesg.c3k
> 
> On your system PCI bus handling seems strange, e.g. those kernel messages:
> a) PCI: Unable to handle 64-bit address space for bridge 0000:01:04.0

We make no attempt to handle 64-bit ranges when running 32-bit kernel.
This is completely unrelated to the USB controller in (b).
This is probably the "PREFETCH Memory Range" of this Bridge not
getting allocated. Usually not a problem.


> b) [17179607.932000] ohci_hcd 0000:02:08.0: controller already in use

The ohci drive is really trying to say it could not allocate an MMIO region.
I'll submit a patch to linux-usb to make this clearer and see if they
shove it back at me impaled on a flaming spear. :)  At least 7 different
USB drivers use this same (wrong IMHO) text.

> So, although your ohci_hcd driver was loaded, it was not activated.
> That's why you can't access your USB disks.

ohci_hcd was attempting to load but failed and exited.
Note the reference count is 0 of both ohci and ehci USB drivers.
The driver load should have failed and should have unloaded.
But unloading manually might still work.

...
> > [17179591.388000] PCI: Cannot allocate resource (bogus alignment) 8 [100000:1fffff] (flags 200) of 0000:01:04.0

This looks like a bug in the generic PCI code.

This message is from drivers/pci/setup-res.c:pci_assign_resource():
...
        min = (res->flags & IORESOURCE_IO) ? PCIBIOS_MIN_IO : PCIBIOS_MIN_MEM;

        align = resource_alignment(res);
        if (!align) {
                dev_info(&dev->dev, "BAR %d: can't allocate resource (bogus "
                        "alignment) %pR flags %#lx\n",
                        resno, res, res->flags);
                return -EINVAL;
        }
...

kernel/resource.c:resource_alignment() returns 0 if neither
IORESOURCE_SIZEALIGN nor IORESOURCE_STARTALIGN flags are set.
Given "resource 8" is Bridge range and not a standard BAR, we shouldn't
be using the normal PCI range checking. Bridge ranges do not have the
same constraints on MMIO range allocation as normal BARs do.

I'm sure the PDC is doing the right thing in how it's allocating ranges.
The PCI code needs to handle the "Bridge Ranges" special. Just need
a stack trace of where this is getting called from and figure out
what to do differently. It's possible drivers/parisc/dino.c code
needs to change instead of drivers/pci code.


> > [17179591.392000] PCI: bogus alignment of resource 8 [100000:1fffff] (flags 200) of 0000:01:04.0
> 
> ^^ What's that?

Is this answered above sufficiently?


> > [17179591.392000] PCI: Bridge: 0000:01:04.0
> > [17179591.392000]   IO window: disabled.
> > [17179591.392000]   MEM window: 0x00100000-0x001fffff
> > [17179591.392000]   PREFETCH window: disabled.
> > [17179591.392000] powersw: Soft power switch at 0xf0140000 enabled.
> > [17179591.408000] NET: Registered protocol family 2
> > [17179591.444000] IP route cache hash table entries: 131072 (order: 7, 524288 bytes)
> > [17179591.448000] TCP established hash table entries: 524288 (order: 10, 4194304 bytes)
> > [17179591.492000] TCP bind hash table entries: 65536 (order: 6, 262144 bytes)
> > [17179591.496000] TCP: Hash tables configured (established 524288 bind 65536)
> > [17179591.496000] TCP reno registered
> > [17179591.508000] NET: Registered protocol family 1
> > [17179591.508000] checking if image is initramfs... it is
> > [17179596.108000] Freeing initrd memory: 7005k freed
> > [17179596.112000] Enabling PDC chassis warnings support v0.05
> > [17179596.112000] unwind_init: start = 0x1035de10, end = 0x103850f0, entries = 10030
> > [17179596.116000] audit: initializing netlink socket (disabled)
> > [17179596.116000] type=2000 audit(1234628527.932:1): initialized
> > [17179596.120000] VFS: Disk quotas dquot_6.5.1
> > [17179596.120000] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> > [17179596.120000] msgmni has been set to 4550
> > [17179596.124000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
> > [17179596.124000] io scheduler noop registered
> > [17179596.124000] io scheduler anticipatory registered
> > [17179596.124000] io scheduler deadline registered
> > [17179596.124000] io scheduler cfq registered (default)
> > [17179596.128000] PDC Stable Storage facility v0.30
> > [17179597.600000] STI GSC/PCI core graphics driver Version 0.9a
> > [17179597.600000] sti 0000:00:01.0: enabling SERR and PARITY (0002 -> 0142)
> > [17179597.600000] STI PCI graphic ROM found at f2f80000 (64 kB), fb at f6000000 (32 MB)
> > [17179597.688000]     id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
> > [17179597.688000]     graphics card name: PCI_GRAFFITIX1280
> > [17179597.688000] sticon: Initializing STI text console.
> > [17179597.692000] Console: switching to colour STI console 160x64
> > [17179598.540000] Console: switching to colour frame buffer device 160x64
> > [17179598.656000] fb0: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIX1280, id: 2d08c0a7, mmio: 0xf6100000
> > [17179598.692000] Generic RTC Driver v1.07
> > [17179598.712000] Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
> > [17179598.736000] 8:16:4: ttyS0 at MMIO 0xffd05800 (irq = 16) is a 16550A
> > [17179598.760000] 8:0:63: ttyS1 at MMIO 0xf2003800 (irq = 21) is a 16550A
> > [17179598.788000] brd: module loaded
> > [17179598.808000] serio: GSC PS/2 keyboard port at 0x00020000 irq 20 @ 8:16:7
> > [17179598.832000] serio: GSC PS/2 mouse port at 0x00022100 irq 20 @ 8:16:8
> > [17179598.848000] mice: PS/2 mouse device common for all mice
> > [17179598.876000] TCP cubic registered
> > [17179598.892000] NET: Registered protocol family 17
> > [17179598.952000] input: AT Raw Set 2 keyboard as /class/input/input0
> > [17179598.968000] registered taskstats version 1
> > [17179598.988000] Freeing unused kernel memory: 224k freed
> > [17179600.620000] SCSI subsystem initialized
> > [17179600.700000] 53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
> > [17179600.720000] scsi0: 53c710 rev 2 
> > [17179601.736000] scsi0 : LASI SCSI 53c700
> > [17179602.400000] scsi 0:0:2:0: CD-ROM            TOSHIBA  CD-ROM XM-5401TA 1036 PQ: 0 ANSI: 2
> > [17179602.424000]  target0:0:2: Beginning Domain Validation
> > [17179602.444000]  target0:0:2: asynchronous
> > [17179602.488000]  target0:0:2: FAST-5 SCSI 4.2 MB/s ST (236 ns, offset 8)
> > [17179602.524000]  target0:0:2: Domain Validation skipping write tests
> > [17179602.544000]  target0:0:2: Ending Domain Validation
> > [17179606.428000] Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
> > [17179606.456000] tulip0: no phy info, aborting mtable build
> > [17179606.476000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
> > [17179606.504000] eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xf2801000, 00:10:83:05:83:a5, IRQ 24.
> > [17179606.584000] sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 23
> > [17179606.984000] sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
> > [17179607.004000] sym0: SCSI BUS has been reset.
> > [17179607.032000] scsi1 : sym-2.2.3
> > [17179607.292000] usbcore: registered new interface driver usbfs
> > [17179607.312000] usbcore: registered new interface driver hub
> > [17179607.488000] Driver 'sr' needs updating - please use bus_type methods
> > [17179607.688000] sr0: scsi-1 drive
> > [17179607.708000] Uniform CD-ROM driver Revision: 3.20
> > [17179607.728000] sr 0:0:2:0: Attached scsi CD-ROM sr0
> > [17179607.756000] usbcore: registered new device driver usb
> 
> from here ->
> > [17179607.788000] ohci1394 0000:02:0b.0: enabling device (0150 -> 0152)
> > [17179607.812000] ohci1394: MMIO resource (0x106000 - 0x106800) unavailable
> > [17179607.828000] ohci1394: probe of 0000:02:0b.0 failed with error -12
> > [17179607.912000] ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver
> > [17179607.912000] ohci_hcd: block sizes: ed 64 td 64
> > [17179607.912000] ohci_hcd 0000:02:08.0: enabling device (0150 -> 0152)
> > [17179607.932000] ohci_hcd 0000:02:08.0: controller already in use
> > [17179607.932000] ohci_hcd 0000:02:08.0: init 0000:02:08.0 fail, -16
> > [17179607.952000] ohci_hcd: probe of 0000:02:08.0 failed with error -16
> > [17179607.972000] ohci_hcd 0000:02:08.1: enabling device (0150 -> 0152)
> > [17179607.992000] ohci_hcd 0000:02:08.1: controller already in use
> > [17179607.992000] ohci_hcd 0000:02:08.1: init 0000:02:08.1 fail, -16
> > [17179608.012000] ohci_hcd: probe of 0000:02:08.1 failed with error -16
> > [17179608.056000] ehci_hcd: block sizes: qh 128 qtd 96 itd 160 sitd 96
> > [17179608.056000] ehci_hcd 0000:02:08.2: enabling device (0150 -> 0152)
> > [17179608.076000] ehci_hcd 0000:02:08.2: controller already in use
> > [17179608.076000] ehci_hcd 0000:02:08.2: init 0000:02:08.2 fail, -16
> > [17179608.096000] ehci_hcd: probe of 0000:02:08.2 failed with error -16
> to here: This looks strange.

-16 == -EBUSY

This could be caused by 01:04.0 bridge not getting resources allocated
and ranges enabled properly.

hth,
grant

> > [17179608.620000] sr 0:0:2:0: Attached scsi generic sg0 type 5
> > [17179610.020000] scsi 1:0:0:0: Direct-Access     FUJITSU  MAT3073NC        5207 PQ: 0 ANSI: 3
> > [17179610.040000]  target1:0:0: tagged command queuing enabled, command queue depth 16.
> > [17179610.060000]  target1:0:0: Beginning Domain Validation
> > [17179610.084000]  target1:0:0: asynchronous
> > [17179610.116000]  target1:0:0: wide asynchronous
> > [17179610.136000]  target1:0:0: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 16)
> > [17179610.160000]  target1:0:0: Domain Validation skipping write tests
> > [17179610.180000]  target1:0:0: Ending Domain Validation
> > [17179610.200000] scsi 1:0:1:0: Direct-Access     FUJITSU  MAP3735NC        5207 PQ: 0 ANSI: 3
> > [17179610.220000]  target1:0:1: tagged command queuing enabled, command queue depth 16.
> > [17179610.240000]  target1:0:1: Beginning Domain Validation
> > [17179610.264000]  target1:0:1: asynchronous
> > [17179610.296000]  target1:0:1: wide asynchronous
> > [17179610.316000]  target1:0:1: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 16)
> > [17179610.336000]  target1:0:1: Domain Validation skipping write tests
> > [17179610.356000]  target1:0:1: Ending Domain Validation
> > [17179614.200000] scsi 1:0:0:0: Attached scsi generic sg1 type 0
> > [17179614.220000] scsi 1:0:1:0: Attached scsi generic sg2 type 0
> > [17179614.660000] Driver 'sd' needs updating - please use bus_type methods
> > [17179614.736000] sd 1:0:0:0: [sda] 143374744 512-byte hardware sectors (73408 MB)
> > [17179614.760000] sd 1:0:0:0: [sda] Write Protect is off
> > [17179614.776000] sd 1:0:0:0: [sda] Mode Sense: d1 00 00 08
> > [17179614.780000] sd 1:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
> > [17179614.800000] sd 1:0:0:0: [sda] 143374744 512-byte hardware sectors (73408 MB)
> > [17179614.832000] sd 1:0:0:0: [sda] Write Protect is off
> > [17179614.852000] sd 1:0:0:0: [sda] Mode Sense: d1 00 00 08
> > [17179614.852000] sd 1:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
> > [17179614.872000]  sda: sda1 sda2 sda3 < sda5 sda6 sda7 sda8 >
> > [17179614.920000] sd 1:0:0:0: [sda] Attached SCSI disk
> > [17179614.988000] sd 1:0:1:0: [sdb] 143571316 512-byte hardware sectors (73509 MB)
> > [17179615.008000] sd 1:0:1:0: [sdb] Write Protect is off
> > [17179615.028000] sd 1:0:1:0: [sdb] Mode Sense: b9 00 00 08
> > [17179615.032000] sd 1:0:1:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
> > [17179615.052000] sd 1:0:1:0: [sdb] 143571316 512-byte hardware sectors (73509 MB)
> > [17179615.080000] sd 1:0:1:0: [sdb] Write Protect is off
> > [17179615.100000] sd 1:0:1:0: [sdb] Mode Sense: b9 00 00 08
> > [17179615.100000] sd 1:0:1:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
> > [17179615.120000]  sdb: sdb1 < sdb5 >
> > [17179615.148000] sd 1:0:1:0: [sdb] Attached SCSI disk
> > [17179616.948000] kjournald starting.  Commit interval 5 seconds
> > [17179616.964000] EXT3-fs: mounted filesystem with ordered data mode.
> > [17179623.812000] udevd version 125 started
> > [17179640.672000] input: PS/2 Logitech Mouse as /class/input/input1
> > [17179644.828000] Adding 2931820k swap on /dev/sda7.  Priority:-1 extents:1 across:2931820k
> > [17179645.684000] EXT3 FS on sda8, internal journal
> > [17179648.400000] LASI 82596 driver - Revision: 1.30
> > [17179648.580000] loop: module loaded
> > [17179652.020000] kjournald starting.  Commit interval 5 seconds
> > [17179652.052000] EXT3 FS on sda6, internal journal
> > [17179652.072000] EXT3-fs: mounted filesystem with ordered data mode.
> > [17179652.116000] kjournald starting.  Commit interval 5 seconds
> > [17179652.152000] EXT3 FS on sdb5, internal journal
> > [17179652.172000] EXT3-fs: mounted filesystem with ordered data mode.
> > [17179652.212000] kjournald starting.  Commit interval 5 seconds
> > [17179652.236000] EXT3 FS on sda5, internal journal
> > [17179652.260000] EXT3-fs: mounted filesystem with ordered data mode.
> > [17179659.496000] NET: Registered protocol family 10
> > [17179659.520000] lo: Disabled Privacy Extensions
> > [17179659.568000] 0000:00:14.0: tulip_stop_rxtx() failed (CSR5 0xf0660000 CSR6 0xb24e2002)
> > [17179659.568000] eth0: Setting half-duplex based on MII#1 link partner capability of 0021.
> > [17179670.044000] eth0: no IPv6 routers present
> > [17179671.764000] lp: driver loaded but no devices found
> > [17179671.764000] RPC: Registered udp transport module.
> > [17179671.768000] RPC: Registered tcp transport module.
> > 
> 
> 
> -- 
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From - Thu Nov 08 21:03:41 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: linux-parisc patchwork now on kernel.org
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On Tue, Feb 17, 2009 at 08:26:09PM -0500, Kyle McMartin wrote:
> Please create accounts here, I'll be looking here for patches
> instead of the current location.

Kyle,
"here" is ambiguous. Create accounts on patchwork.kernel.org?

Do I have to do something different to submit parisc patches
other than send them to the linux-parisc mailing list?

thanks,
grant

> 
> http://patchwork.kernel.org/project/linux-parisc/list/
> 
> The old one will be going offline when the machine it's on dies
> sometime in the next few months.
> 
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Subject: Re: [rtc-linux] [PATCH/RFC 0/5] Generic RTC class driver
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Cc: rtc-linux@googlegroups.com, Richard Zidlicky <rz@linux-m68k.org>,
	linux-parisc@vger.kernel.org,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	David@ozlabs.org, Kyle McMartin <kyle@mcmartin.ca>,
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To: Alessandro Zummo <alessandro.zummo@towertech.it>
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On Fri, 20 Feb 2009, Alessandro Zummo wrote:
> On Fri, 20 Feb 2009 16:46:44 +0100
> Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:
> > Fortunately there already exists a generic RTC class driver: "rtc-p=
arisc".
> > Despite it's name, it's platform-independent, as it's build on top =
of the RTC
> > abstraction used by "genrtc".
> >=20
> > This patch series
> >   - adds a missing module alias to rtc-parisc,
> >   - renames rtc-parisc to rtc-generic,
> >   - converts the architectures that currently have CONFIG_GEN_RTC e=
nabled in
> >     their defconfig (m68k, parisc, powerpc) to rtc-generic,
> >   - removes the obsolete rtc-ppc driver,
> >   - removes the old genrtc driver.
> >  =20
> > Note that genrtc may be used on other archictectures as well: at le=
ast alpha
> > has the required infrastructure ([gs]et_rtc_time()). The Kconfig ru=
les allow
> > genrtc to be enabled on several others (cris, h8300, mn10300, um, x=
86, xtensa).
> >=20
> > Furthermore genrtc and rtc-generic are not 100% userspace compatibl=
e:
> >   - /dev/rtc provided by genrtc uses a misc character device (10:13=
5),
> >   - /dev/rtc provided by rtc-generic uses a dynamic character devic=
e.
>=20
>  Hello,
>=20
>    my opinion on this kind of stuff is that I want to avoid the layer=
ing
>  of implementations under the rtc subsystem. I'd rather prefer that e=
ach
>  rtc device had its own driver.=20
> =20
>   I've made error in the past, by accepting such kind of drivers, and
>  would like to avoid that it happens again.

So you want us to kill the ppc_md.[gs]et_rtc_time() [ppc], mach_hwclk()=
 [m68k],
mach_gettod() [m68knommu] (and probably a few other) abstractions, and =
move all
RTC code out of arch/ into seperate drivers under drivers/rtc/ instead?

What about ppc_md.get_boot_time() [ppc]?
Please note that the functions above may also be used for very early cl=
ock
setting (e.g. time_init()) and in read_persistent_clock().
How should we handle these?

Even on x86 there seems to be way too much RTC logic in arch/x86/kernel=
/rtc.c
(e.g. mach_get_cmos_time()), which is duplicated in drivers/rtc/rtc-cmo=
s.c
through the inline function __get_rtc_time() in include/asm-generic/rtc=
=2Eh
(clever, hardware-specific stuff in asm-generic ;-)

>   Regarding the user space, the assumption that a device has
>  a fixed major:minor number should be dropped as well.

I know. But it's a userland-visible change, so I wanted to explicit poi=
nt to
it.

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Bel=
gium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
Internet: http://www.sony-europe.com/

A division of Sony Europe (Belgium) N.V.
VAT BE 0413.825.160 =B7 RPR Brussels
=46ortis =B7 BIC GEBABEBB =B7 IBAN BE41293037680010
--
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From - Thu Nov 08 21:03:41 2018
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From: Alessandro Zummo <alessandro.zummo@towertech.it>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [rtc-linux] Re: [PATCH/RFC 0/5] Generic RTC class driver
Date: Mon, 23 Feb 2009 16:05:06 +0100
Organization: Tower Technologies
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On Mon, 23 Feb 2009 13:34:49 +0100 (CET)
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:

> >  Hello,
> > 
> >    my opinion on this kind of stuff is that I want to avoid the layering
> >  of implementations under the rtc subsystem. I'd rather prefer that each
> >  rtc device had its own driver. 
> >  
> >   I've made error in the past, by accepting such kind of drivers, and
> >  would like to avoid that it happens again.
> 
> So you want us to kill the ppc_md.[gs]et_rtc_time() [ppc], mach_hwclk() [m68k],
> mach_gettod() [m68knommu] (and probably a few other) abstractions, and move all
> RTC code out of arch/ into seperate drivers under drivers/rtc/ instead?

 not all at once :) 

 I'd start writing a working driver and then see how we should eventually
 adapt the rtc subsystem to cope with your needs.
 
> What about ppc_md.get_boot_time() [ppc]?
> Please note that the functions above may also be used for very early clock
> setting (e.g. time_init()) and in read_persistent_clock().
> How should we handle these?

 read_persistent_clock is something that should be reconsidered
 as well along with all the ntp stuff.

> Even on x86 there seems to be way too much RTC logic in arch/x86/kernel/rtc.c

> (e.g. mach_get_cmos_time()), which is duplicated in drivers/rtc/rtc-cmos.c
> through the inline function __get_rtc_time() in include/asm-generic/rtc.h
> (clever, hardware-specific stuff in asm-generic ;-)

 yep, I know :( that hardcoded rtc stuff seems to be everywhere!


-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: Re: [rtc-linux] Re: [PATCH/RFC 0/5] Generic RTC class driver
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Cc: rtc-linux@googlegroups.com, Richard Zidlicky <rz@linux-m68k.org>,
	linux-parisc@vger.kernel.org,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	David@ozlabs.org, Kyle McMartin <kyle@mcmartin.ca>,
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To: Alessandro Zummo <alessandro.zummo@towertech.it>
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On Mon, 23 Feb 2009, Alessandro Zummo wrote:
> On Mon, 23 Feb 2009 13:34:49 +0100 (CET)
> Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:
> > >    my opinion on this kind of stuff is that I want to avoid the l=
ayering
> > >  of implementations under the rtc subsystem. I'd rather prefer th=
at each
> > >  rtc device had its own driver.=20
> > > =20
> > >   I've made error in the past, by accepting such kind of drivers,=
 and
> > >  would like to avoid that it happens again.
> >=20
> > So you want us to kill the ppc_md.[gs]et_rtc_time() [ppc], mach_hwc=
lk() [m68k],
> > mach_gettod() [m68knommu] (and probably a few other) abstractions, =
and move all
> > RTC code out of arch/ into seperate drivers under drivers/rtc/ inst=
ead?
>=20
>  not all at once :)=20
>=20
>  I'd start writing a working driver and then see how we should eventu=
ally
>  adapt the rtc subsystem to cope with your needs.

OK, so here's a first example: rtc-ps3.

Note that this single patch adds 100+ lines of code, while my previous =
patch
series removed 500+ lines of code, while solving the autoloading proble=
m for
several ppc and m68k platforms.

Converting all (ca. 20?) ppc and m68k RTC support code into individual =
RTC
class drivers would add ca. 100+ lines of code for each individual driv=
er.

=46rom 641412e4e638d00c8821c2d9b38e02727821a203 Mon Sep 17 00:00:00 200=
1
=46rom: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Date: Tue, 24 Feb 2009 14:04:20 +0100
Subject: [PATCH] Create a real RTC driver for PS3, called "rtc-ps3"

---
 arch/powerpc/include/asm/ps3.h        |    4 +
 arch/powerpc/platforms/ps3/os-area.c  |    2 +
 arch/powerpc/platforms/ps3/platform.h |    2 -
 arch/powerpc/platforms/ps3/setup.c    |    2 -
 arch/powerpc/platforms/ps3/time.c     |   25 ++++----
 drivers/rtc/Kconfig                   |    9 +++
 drivers/rtc/Makefile                  |    1 +
 drivers/rtc/rtc-ps3.c                 |  106 +++++++++++++++++++++++++=
++++++++
 8 files changed, 133 insertions(+), 18 deletions(-)
 create mode 100644 drivers/rtc/rtc-ps3.c

diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/=
ps3.h
index b65446a..dee0480 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -500,6 +500,10 @@ u64 ps3_get_spe_id(void *arg);
 /* mutex synchronizing GPU accesses and video mode changes */
 extern struct mutex ps3_gpu_mutex;
=20
+/* os area */
+u64 ps3_os_area_get_rtc_diff(void);
+void ps3_os_area_set_rtc_diff(u64 rtc_diff);
+
 /* kernel debug routines */
=20
 int ps3_debug_setup_dabr(u64 address, unsigned int dabr_flags);
diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platfo=
rms/ps3/os-area.c
index ccf0157..f1f2d47 100644
--- a/arch/powerpc/platforms/ps3/os-area.c
+++ b/arch/powerpc/platforms/ps3/os-area.c
@@ -823,6 +823,7 @@ u64 ps3_os_area_get_rtc_diff(void)
 {
 	return saved_params.rtc_diff;
 }
+EXPORT_SYMBOL(ps3_os_area_get_rtc_diff);
=20
 /**
  * ps3_os_area_set_rtc_diff - Set the rtc diff value.
@@ -838,6 +839,7 @@ void ps3_os_area_set_rtc_diff(u64 rtc_diff)
 		os_area_queue_work();
 	}
 }
+EXPORT_SYMBOL(ps3_os_area_set_rtc_diff);
=20
 /**
  * ps3_os_area_get_av_multi_out - Returns the default video mode.
diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platf=
orms/ps3/platform.h
index 235c13e..136aa06 100644
--- a/arch/powerpc/platforms/ps3/platform.h
+++ b/arch/powerpc/platforms/ps3/platform.h
@@ -64,8 +64,6 @@ int ps3_set_rtc_time(struct rtc_time *time);
=20
 void __init ps3_os_area_save_params(void);
 void __init ps3_os_area_init(void);
-u64 ps3_os_area_get_rtc_diff(void);
-void ps3_os_area_set_rtc_diff(u64 rtc_diff);
=20
 /* spu */
=20
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platform=
s/ps3/setup.c
index e2032c6..020ba1d 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -300,8 +300,6 @@ define_machine(ps3) {
 	.init_IRQ			=3D ps3_init_IRQ,
 	.panic				=3D ps3_panic,
 	.get_boot_time			=3D ps3_get_boot_time,
-	.set_rtc_time			=3D ps3_set_rtc_time,
-	.get_rtc_time			=3D ps3_get_rtc_time,
 	.set_dabr			=3D ps3_set_dabr,
 	.calibrate_decr			=3D ps3_calibrate_decr,
 	.progress			=3D ps3_progress,
diff --git a/arch/powerpc/platforms/ps3/time.c b/arch/powerpc/platforms=
/ps3/time.c
index d0daf7d..112397d 100644
--- a/arch/powerpc/platforms/ps3/time.c
+++ b/arch/powerpc/platforms/ps3/time.c
@@ -19,6 +19,7 @@
  */
=20
 #include <linux/kernel.h>
+#include <linux/platform_device.h>
=20
 #include <asm/rtc.h>
 #include <asm/lv1call.h>
@@ -74,23 +75,19 @@ static u64 read_rtc(void)
 	return rtc_val;
 }
=20
-int ps3_set_rtc_time(struct rtc_time *tm)
+unsigned long __init ps3_get_boot_time(void)
 {
-	u64 now =3D mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
-		tm->tm_hour, tm->tm_min, tm->tm_sec);
-
-	ps3_os_area_set_rtc_diff(now - read_rtc());
-	return 0;
+	return read_rtc() + ps3_os_area_get_rtc_diff();
 }
=20
-void ps3_get_rtc_time(struct rtc_time *tm)
-{
-	to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
-	tm->tm_year -=3D 1900;
-	tm->tm_mon -=3D 1;
-}
+static struct platform_device rtc_ps3_dev =3D {
+	.name =3D "rtc-ps3",
+	.id =3D -1,
+};
=20
-unsigned long __init ps3_get_boot_time(void)
+static int __init rtc_init(void)
 {
-	return read_rtc() + ps3_os_area_get_rtc_diff();
+	return platform_device_register(&rtc_ps3_dev);
 }
+
+module_init(rtc_init);
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 81450fb..4b61288 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -736,4 +736,13 @@ config RTC_DRV_MV
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-mv.
=20
+config RTC_DRV_PS3
+	tristate "PS3 RTC"
+	depends on PPC_PS3
+	help
+	  If you say yes here you will get support for the RTC on PS3.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-ps3.
+
 endif # RTC_CLASS
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 0e697aa..7fe627c 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -76,3 +76,4 @@ obj-$(CONFIG_RTC_DRV_VR41XX)	+=3D rtc-vr41xx.o
 obj-$(CONFIG_RTC_DRV_WM8350)	+=3D rtc-wm8350.o
 obj-$(CONFIG_RTC_DRV_X1205)	+=3D rtc-x1205.o
 obj-$(CONFIG_RTC_DRV_PCF50633)	+=3D rtc-pcf50633.o
+obj-$(CONFIG_RTC_DRV_PS3)	+=3D rtc-ps3.o
diff --git a/drivers/rtc/rtc-ps3.c b/drivers/rtc/rtc-ps3.c
new file mode 100644
index 0000000..84ae08c
--- /dev/null
+++ b/drivers/rtc/rtc-ps3.c
@@ -0,0 +1,106 @@
+/*
+ * PS3 RTC Driver
+ *
+ * Copyright 2009 Sony Corporation
+ *
+ * This program is free software; you can redistribute it and/or modif=
y
+ * it under the terms of the GNU General Public License as published b=
y
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.
+ * If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+
+#include <asm/lv1call.h>
+#include <asm/ps3.h>
+
+
+static u64 read_rtc(void)
+{
+	int result;
+	u64 rtc_val;
+	u64 tb_val;
+
+	result =3D lv1_get_rtc(&rtc_val, &tb_val);
+	BUG_ON(result);
+
+	return rtc_val;
+}
+
+static int ps3_get_time(struct device *dev, struct rtc_time *tm)
+{
+	to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
+	tm->tm_year -=3D 1900;
+	tm->tm_mon -=3D 1;
+	return 0;
+}
+
+static int ps3_set_time(struct device *dev, struct rtc_time *tm)
+{
+	u64 now =3D mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
+			 tm->tm_hour, tm->tm_min, tm->tm_sec);
+	ps3_os_area_set_rtc_diff(now - read_rtc());
+	return 0;
+}
+
+static const struct rtc_class_ops ps3_rtc_ops =3D {
+	.read_time =3D ps3_get_time,
+	.set_time =3D ps3_set_time,
+};
+
+static int __devinit ps3_rtc_probe(struct platform_device *dev)
+{
+	struct rtc_device *rtc;
+
+	rtc =3D rtc_device_register("rtc-ps3", &dev->dev, &ps3_rtc_ops,
+				     THIS_MODULE);
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
+
+	platform_set_drvdata(dev, rtc);
+	return 0;
+}
+
+static int __devexit ps3_rtc_remove(struct platform_device *dev)
+{
+	rtc_device_unregister(platform_get_drvdata(dev));
+	return 0;
+}
+
+static struct platform_driver ps3_rtc_driver =3D {
+	.driver =3D {
+		.name =3D "rtc-ps3",
+		.owner =3D THIS_MODULE,
+	},
+	.probe =3D ps3_rtc_probe,
+	.remove =3D __devexit_p(ps3_rtc_remove),
+};
+
+static int __init ps3_rtc_init(void)
+{
+	return platform_driver_register(&ps3_rtc_driver);
+}
+
+static void __exit ps3_rtc_fini(void)
+{
+	platform_driver_unregister(&ps3_rtc_driver);
+}
+
+module_init(ps3_rtc_init);
+module_exit(ps3_rtc_fini);
+
+MODULE_AUTHOR("Sony Corporation");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ps3 RTC driver");
+MODULE_ALIAS("platform:rtc-ps3");
--=20
1.6.0.4


With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Bel=
gium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
Internet: http://www.sony-europe.com/

A division of Sony Europe (Belgium) N.V.
VAT BE 0413.825.160 =B7 RPR Brussels
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Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
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On Tue, 24 Feb 2009 18:56:03 +0100 (CET)
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:

> 
> On Mon, 23
> > 
> >  I'd start writing a working driver and then see how we should eventually
> >  adapt the rtc subsystem to cope with your needs.
> 
> OK, so here's a first example: rtc-ps3.
> 
> Note that this single patch adds 100+ lines of code, while my previous patch
> series removed 500+ lines of code, while solving the autoloading problem for
> several ppc and m68k platforms.

 This patch has a much cleaner approach, imho.

> Converting all (ca. 20?) ppc and m68k RTC support code into individual RTC
> class drivers would add ca. 100+ lines of code for each individual driver.



 How different are all of those boards? It's simply a matter
 of parameters and offsets? can we group them somehow?

 
-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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Cc: Alessandro Zummo <a.zummo@towertech.it>,
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	David Woodhouse <dwmw2@infradead.org>,
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To: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
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Geert Uytterhoeven wrote:
> I've been looking into problems with auto-loading the RTC driver on PPC (more
> specifically on PS3):
>   - The recent "rtc-ppc" RTC class driver is not autoloaded by udev because
>     it's an old style platform driver that contains its own platform device.
>   - The alternative old "genrtc" driver is autoloaded on non-udev systems only
>     because it contains the module alias char-major-10-135. However, it's not
>     a new-style RTC class driver.
> 
> Fortunately there already exists a generic RTC class driver: "rtc-parisc".
> Despite it's name, it's platform-independent, as it's build on top of the RTC
> abstraction used by "genrtc".
> 
> This patch series
>   - adds a missing module alias to rtc-parisc,
>   - renames rtc-parisc to rtc-generic,
>   - converts the architectures that currently have CONFIG_GEN_RTC enabled in
>     their defconfig (m68k, parisc, powerpc) to rtc-generic,
>   - removes the obsolete rtc-ppc driver,
>   - removes the old genrtc driver.
>   
> Note that genrtc may be used on other archictectures as well: at least alpha
> has the required infrastructure ([gs]et_rtc_time()). The Kconfig rules allow
> genrtc to be enabled on several others (cris, h8300, mn10300, um, x86, xtensa).
> 
> Furthermore genrtc and rtc-generic are not 100% userspace compatible:
>   - /dev/rtc provided by genrtc uses a misc character device (10:135),
>   - /dev/rtc provided by rtc-generic uses a dynamic character device.
>   
> So perhaps we don't want to kill gen-rtc yet?
> 
> Any comments are welcomed!

Hi Geert,
FYI, I didn't followed any discussions or changes around the RTC drivers for parisc,
but Dann Frazier did some work on the parisc RTC driver as well.
His patches were merged (not upstream yet!) in Kyle's "rtc-parisc" branch at:
http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=shortlog;h=rtc-parisc

Not sure if they conflict (or are in sync) with your patches...

Helge
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On Mon, 2009-02-23 at 13:34 +0100, Geert Uytterhoeven wrote:
> >    my opinion on this kind of stuff is that I want to avoid the layering
> >  of implementations under the rtc subsystem. I'd rather prefer that each
> >  rtc device had its own driver. 
> >  
> >   I've made error in the past, by accepting such kind of drivers, and
> >  would like to avoid that it happens again.
> 
> So you want us to kill the ppc_md.[gs]et_rtc_time() [ppc], mach_hwclk() [m68k],
> mach_gettod() [m68knommu] (and probably a few other) abstractions, and move all
> RTC code out of arch/ into seperate drivers under drivers/rtc/ instead?

That's the ideal... although did we get NTP sync working again yet?

The rtc-ppc driver was intended as a short-term workaround so that we
can enable the generic RTC class (which was required for PA Semi
Electra, iirc), and still have stuff work on other platforms.

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse@intel.com                              Intel Corporation

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On Wed, 25 Feb 2009 06:35:27 +0900
David Woodhouse <dwmw2@infradead.org> wrote:

> > So you want us to kill the ppc_md.[gs]et_rtc_time() [ppc], mach_hwclk() [m68k],
> > mach_gettod() [m68knommu] (and probably a few other) abstractions, and move all
> > RTC code out of arch/ into seperate drivers under drivers/rtc/ instead?
> 
> That's the ideal... although did we get NTP sync working again yet?

 not yet. we're close but I've been very busy :(
 
-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>,
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To: Alessandro Zummo <alessandro.zummo@towertech.it>
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On Tue, 2009-02-24 at 23:11 +0100, Alessandro Zummo wrote:
> On Wed, 25 Feb 2009 06:35:27 +0900
> David Woodhouse <dwmw2@infradead.org> wrote:
> 
> > > So you want us to kill the ppc_md.[gs]et_rtc_time() [ppc], mach_hwclk() [m68k],
> > > mach_gettod() [m68knommu] (and probably a few other) abstractions, and move all
> > > RTC code out of arch/ into seperate drivers under drivers/rtc/ instead?
> > 
> > That's the ideal... although did we get NTP sync working again yet?
> 
>  not yet. we're close but I've been very busy :(

I know the feeling.

Once that's working, we can convert individual PPC platforms over,
removing the routines from the ppc_md and creating a generic RTC driver
instead. PA Electra is already like that -- because it wasn't a
regression there to have broken NTP sync. But the others need to wait.

Eventually, we ought to be able to drop the RTC functions from the
ppc_md -- and presumably the equivalent for other architectures too.

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse@intel.com                              Intel Corporation

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Subject: Re: [rtc-linux] Re: [PATCH/RFC 0/5] Generic RTC class driver
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Cc: Richard Zidlicky <rz@linux-m68k.org>, rtc-linux@googlegroups.com,
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To: Alessandro Zummo <alessandro.zummo@towertech.it>
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On Tue, Feb 24, 2009 at 07:37:08PM +0100, Alessandro Zummo wrote:
> On Tue, 24 Feb 2009 18:56:03 +0100 (CET)
> Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:
> > Converting all (ca. 20?) ppc and m68k RTC support code into individual RTC
> > class drivers would add ca. 100+ lines of code for each individual driver.
> 
>  How different are all of those boards? It's simply a matter
>  of parameters and offsets? can we group them somehow?

I imagine we could cut down the numbers somewhat with clever code sharing,
but it's still going to be a fairly large number. I don't know all the
embedded boards, but just with all the Macintosh models there are at
least three and maybe four drastically different methods of RTC access,
and all of them are directly tied to some chip that does something else
completely unrelated. For one of them we don't even have a driver at the
moment.  They also are all custom chips that wouldn't be used anywhere
else. The other thing we need to keep in mind is that if we do it right
we can share drivers across m68k and powerpc in some cases.  I imagine
some of the embedded powerpc boards are using chips that are common in
other architectures as well.

	Brad Boyer
	flar@allandria.com

From - Thu Nov 08 21:03:42 2018
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Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [rtc-linux] [PATCH/RFC 0/5] Generic RTC class driver
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	linux-parisc@vger.kernel.org,
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To: David Woodhouse <dwmw2@infradead.org>
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On Wed, 25 Feb 2009, David Woodhouse wrote:
> On Mon, 2009-02-23 at 13:34 +0100, Geert Uytterhoeven wrote:
> > >    my opinion on this kind of stuff is that I want to avoid the l=
ayering
> > >  of implementations under the rtc subsystem. I'd rather prefer th=
at each
> > >  rtc device had its own driver.=20
> > > =20
> > >   I've made error in the past, by accepting such kind of drivers,=
 and
> > >  would like to avoid that it happens again.
> >=20
> > So you want us to kill the ppc_md.[gs]et_rtc_time() [ppc], mach_hwc=
lk() [m68k],
> > mach_gettod() [m68knommu] (and probably a few other) abstractions, =
and move all
> > RTC code out of arch/ into seperate drivers under drivers/rtc/ inst=
ead?
>=20
> That's the ideal... although did we get NTP sync working again yet?
>=20
> The rtc-ppc driver was intended as a short-term workaround so that we
> can enable the generic RTC class (which was required for PA Semi
> Electra, iirc), and still have stuff work on other platforms.

Sure. The only differences between your rtc-ppc driver and rtc-parisc w=
ere:
  - rtc-ppc uses the PPC RTC abstraction (ppc_md.[gs]et_rtc_time()),
    while rtc-parisc uses the genrtc abstraction layer ([gs]et_rtc_time=
()),
    which is shared by several architectures,
  - rtc-ppc has the platform device built-in in the driver, while rtc-p=
arisc
    relies on the creation of the platform device in platform code.

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Bel=
gium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
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From - Thu Nov 08 21:03:42 2018
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCH/RFC 0/5] Generic RTC class driver
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Cc: Alessandro Zummo <a.zummo@towertech.it>,
	rtc-linux@googlegroups.com, Kyle McMartin <kyle@mcmartin.ca>,
	David Woodhouse <dwmw2@infradead.org>,
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To: Helge Deller <deller@gmx.de>
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On Tue, 24 Feb 2009, Helge Deller wrote:
> Geert Uytterhoeven wrote:
> > I've been looking into problems with auto-loading the RTC driver on=
 PPC (more
> > specifically on PS3):
> >   - The recent "rtc-ppc" RTC class driver is not autoloaded by udev=
 because
> >     it's an old style platform driver that contains its own platfor=
m device.
> >   - The alternative old "genrtc" driver is autoloaded on non-udev s=
ystems only
> >     because it contains the module alias char-major-10-135. However=
, it's not
> >     a new-style RTC class driver.
> >=20
> > Fortunately there already exists a generic RTC class driver: "rtc-p=
arisc".
> > Despite it's name, it's platform-independent, as it's build on top =
of the RTC
> > abstraction used by "genrtc".
> >=20
> > This patch series
> >   - adds a missing module alias to rtc-parisc,
> >   - renames rtc-parisc to rtc-generic,
> >   - converts the architectures that currently have CONFIG_GEN_RTC e=
nabled in
> >     their defconfig (m68k, parisc, powerpc) to rtc-generic,
> >   - removes the obsolete rtc-ppc driver,
> >   - removes the old genrtc driver.
> >  =20
> > Note that genrtc may be used on other archictectures as well: at le=
ast alpha
> > has the required infrastructure ([gs]et_rtc_time()). The Kconfig ru=
les allow
> > genrtc to be enabled on several others (cris, h8300, mn10300, um, x=
86, xtensa).
> >=20
> > Furthermore genrtc and rtc-generic are not 100% userspace compatibl=
e:
> >   - /dev/rtc provided by genrtc uses a misc character device (10:13=
5),
> >   - /dev/rtc provided by rtc-generic uses a dynamic character devic=
e.
> >  =20
> > So perhaps we don't want to kill gen-rtc yet?
> >=20
> > Any comments are welcomed!
>=20
> Hi Geert,
> FYI, I didn't followed any discussions or changes around the RTC driv=
ers for parisc,
> but Dann Frazier did some work on the parisc RTC driver as well.
> His patches were merged (not upstream yet!) in Kyle's "rtc-parisc" br=
anch at:
> http://git.kernel.org/?p=3Dlinux/kernel/git/kyle/parisc-2.6.git;a=3Ds=
hortlog;h=3Drtc-parisc
>=20
> Not sure if they conflict (or are in sync) with your patches...

Thanks, they provide some nice cleanups.

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =C2=B7 Da Vincilaan 7-D1 =C2=B7 B-1935 Zaventem =C2=
=B7 Belgium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [rtc-linux] Re: [PATCH/RFC 0/5] Generic RTC class driver
Date: Wed, 25 Feb 2009 10:58:57 +0100 (CET)
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Cc: Alessandro Zummo <alessandro.zummo@towertech.it>,
	Richard Zidlicky <rz@linux-m68k.org>,
	rtc-linux@googlegroups.com, linux-parisc@vger.kernel.org,
	David@ozlabs.org,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Linux/PPC Development <linuxppc-dev@ozlabs.org>,
	Linux/m68k <linux-m68k@lists.linux-m68k.org>,
	Woodhouse <dwmw2@infradead.org>
To: Brad Boyer <flar@allandria.com>
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On Tue, 24 Feb 2009, Brad Boyer wrote:
> On Tue, Feb 24, 2009 at 07:37:08PM +0100, Alessandro Zummo wrote:
> > On Tue, 24 Feb 2009 18:56:03 +0100 (CET)
> > Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:
> > > Converting all (ca. 20?) ppc and m68k RTC support code into indiv=
idual RTC
> > > class drivers would add ca. 100+ lines of code for each individua=
l driver.
> >=20
> >  How different are all of those boards? It's simply a matter
> >  of parameters and offsets? can we group them somehow?
>=20
> I imagine we could cut down the numbers somewhat with clever code sha=
ring,
> but it's still going to be a fairly large number. I don't know all th=
e
> embedded boards, but just with all the Macintosh models there are at
> least three and maybe four drastically different methods of RTC acces=
s,
> and all of them are directly tied to some chip that does something el=
se
> completely unrelated. For one of them we don't even have a driver at =
the

Yeah, on Mac/m68k the RTC is usually handled by a chip that does lots o=
f other
things, so you need to keep the bulk of the code in arch/m68k/ anyway.

> moment.  They also are all custom chips that wouldn't be used anywher=
e
> else. The other thing we need to keep in mind is that if we do it rig=
ht
> we can share drivers across m68k and powerpc in some cases.  I imagin=
e
> some of the embedded powerpc boards are using chips that are common i=
n
> other architectures as well.

Many embedded powerpc boards already have RTC class drivers under drive=
rs/rtc/,
as their RTC chips are sufficiently common.

The ones that don't are mostly "workstation" or "server" type hardware.=
 The
full list is:
  - rtas_set_rtc_time
  - mpc8xx_set_rtc_time
  - beat_get_rtc_time
  - chrp_set_rtc_time
  - iSeries_set_rtc_time
  - maple_set_rtc_time
  - pmac_set_rtc_time
  - ps3_set_rtc_time

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Bel=
gium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
Internet: http://www.sony-europe.com/

A division of Sony Europe (Belgium) N.V.
VAT BE 0413.825.160 =B7 RPR Brussels
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From - Thu Nov 08 21:03:42 2018
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [rtc-linux] [PATCH/RFC 0/5] Generic RTC class driver
Date: Wed, 25 Feb 2009 11:00:13 +0100 (CET)
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References: <1235144809-32468-1-git-send-email-Geert.Uytterhoeven@sonycom.com> <20090220170454.04382e9e@i1501.lan.towertech.it> <alpine.LRH.2.00.0902231319170.22762@vixen.sonytel.be> <1235511327.18632.73.camel@macbook.infradead.org>
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Cc: Alessandro Zummo <alessandro.zummo@towertech.it>,
	rtc-linux@googlegroups.com, Richard Zidlicky <rz@linux-m68k.org>,
	linux-parisc@vger.kernel.org,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	David@ozlabs.org, Kyle McMartin <kyle@mcmartin.ca>,
	Linux/PPC Development <linuxppc-dev@ozlabs.org>,
	Linux/m68k <linux-m68k@lists.linux-m68k.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: David Woodhouse <dwmw2@infradead.org>
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On Wed, 25 Feb 2009, David Woodhouse wrote:
> On Tue, 2009-02-24 at 23:11 +0100, Alessandro Zummo wrote:
> > On Wed, 25 Feb 2009 06:35:27 +0900
> > David Woodhouse <dwmw2@infradead.org> wrote:
> >=20
> > > > So you want us to kill the ppc_md.[gs]et_rtc_time() [ppc], mach=
_hwclk() [m68k],
> > > > mach_gettod() [m68knommu] (and probably a few other) abstractio=
ns, and move all
> > > > RTC code out of arch/ into seperate drivers under drivers/rtc/ =
instead?
> > >=20
> > > That's the ideal... although did we get NTP sync working again ye=
t?
> >=20
> >  not yet. we're close but I've been very busy :(
>=20
> I know the feeling.
>=20
> Once that's working, we can convert individual PPC platforms over,
> removing the routines from the ppc_md and creating a generic RTC driv=
er
> instead. PA Electra is already like that -- because it wasn't a
> regression there to have broken NTP sync. But the others need to wait=
=2E

I didn't know NTP was broken with RTC class drivers?

So we should actually keep on using genrtc instead of rtc-ppc/rtc-gener=
ic for
now? ;-)

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Bel=
gium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
Internet: http://www.sony-europe.com/

A division of Sony Europe (Belgium) N.V.
VAT BE 0413.825.160 =B7 RPR Brussels
=46ortis =B7 BIC GEBABEBB =B7 IBAN BE41293037680010
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From - Thu Nov 08 21:03:42 2018
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From: Alessandro Zummo <alessandro.zummo@towertech.it>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [rtc-linux] Re: [PATCH/RFC 0/5] Generic RTC class driver
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Cc: Geert.Uytterhoeven@sonycom.com,
	David Woodhouse <dwmw2@infradead.org>,
	Richard Zidlicky <rz@linux-m68k.org>,
	linux-parisc@vger.kernel.org,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
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On Wed, 25 Feb 2009 11:00:13 +0100 (CET)
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:

> I didn't know NTP was broken with RTC class drivers?
> 
> So we should actually keep on using genrtc instead of rtc-ppc/rtc-generic for
> now? ;-)

 broken here means that the kernel won't save the time to the hardware
 rtc every 11 minutes as it used to do. normal NTP operations are unaffected.

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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Subject: can't compile kernel for parisc
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--0015174c37b40c18480463e43167
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I am building the kernel for parisc for the first time.
Have I missed anything important?

  LD      vmlinux.o
  MODPOST vmlinux.o
WARNING: vmlinux.o (.text.1): unexpected section name.
The (.[number]+) following section name are ld generated and not expected.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

WARNING: vmlinux.o(.cpuinit.text+0x418): Section mismatch in reference
from the function init_per_cpu() to the function
.init.text:set_firmware_width()
The function __cpuinit init_per_cpu() references
a function __init set_firmware_width().
If set_firmware_width is only used by init_per_cpu then
annotate set_firmware_width with a matching annotation.

WARNING: vmlinux.o(.cpuinit.text+0x420): Section mismatch in reference
from the function init_per_cpu() to the function
.init.text:pdc_coproc_cfg()
The function __cpuinit init_per_cpu() references
a function __init pdc_coproc_cfg().
If pdc_coproc_cfg is only used by init_per_cpu then
annotate pdc_coproc_cfg with a matching annotation.

WARNING: vmlinux.o (.text.7): unexpected section name.
The (.[number]+) following section name are ld generated and not expected.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

WARNING: vmlinux.o (.text.8): unexpected section name.
The (.[number]+) following section name are ld generated and not expected.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

WARNING: vmlinux.o (.text.16): unexpected section name.
The (.[number]+) following section name are ld generated and not expected.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

WARNING: vmlinux.o (.text.17): unexpected section name.
The (.[number]+) following section name are ld generated and not expected.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

  GEN     .version
  CHK     include/linux/compile.h
dnsdomainname: Unknown host
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
ld: /bin/sh: line 1:  9894 Segmentation fault      ld --build-id -o
.tmp_vmlinux1 -T arch/parisc/kernel/vmlinux.lds
arch/parisc/kernel/head.o init/built-in.o --start-group usr/built-in.o
arch/parisc/mm/built-in.o arch/parisc/kernel/built-in.o
arch/parisc/math-emu/built-in.o arch/parisc/kernel/init_task.o
kernel/built-in.o mm/built-in.o fs/built-in.o ipc/built-in.o
security/built-in.o crypto/built-in.o block/built-in.o lib/lib.a
arch/parisc/lib/lib.a `gcc -print-libgcc-file-name` lib/built-in.o
arch/parisc/lib/built-in.o `gcc -print-libgcc-file-name`
drivers/built-in.o sound/built-in.o firmware/built-in.o net/built-in.o
--end-group
make: *** [.tmp_vmlinux1] Error 139


$ head Makefile
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 29
EXTRAVERSION = -rc6

 $ gcc -v
Using built-in specs.
Target: hppa2.0-unknown-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-4.3.3/work/gcc-4.3.3/configure
--prefix=/usr --bindir=/usr/hppa2.0-unknown-linux-gnu/gcc-bin/4.3.3
--includedir=/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.3.3/include
--datadir=/usr/share/gcc-data/hppa2.0-unknown-linux-gnu/4.3.3
--mandir=/usr/share/gcc-data/hppa2.0-unknown-linux-gnu/4.3.3/man
--infodir=/usr/share/gcc-data/hppa2.0-unknown-linux-gnu/4.3.3/info
--with-gxx-include-dir=/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.3.3/include/g++-v4
--host=hppa2.0-unknown-linux-gnu --build=hppa2.0-unknown-linux-gnu
--disable-altivec --disable-fixed-point --disable-nls
--with-system-zlib --disable-checking --disable-werror
--enable-secureplt --disable-multilib --disable-libmudflap
--disable-libssp --disable-libgomp --enable-cld --disable-libgcj
--enable-languages=c,c++,treelang --enable-shared
--enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
--with-bugurl=http://bugs.gentoo.org/ --with-pkgversion='Gentoo 4.3.3
p1.0, pie-10.1.5'
Thread model: posix
gcc version 4.3.3 (Gentoo 4.3.3 p1.0, pie-10.1.5)

$ binutils-config -l
 [1] hppa2.0-unknown-linux-gnu-2.19.1 *

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Subject: Re: can't compile kernel for parisc
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On Fri, Feb 27, 2009 at 5:47 AM, Alexander Beregalov
<a.beregalov@gmail.com> wrote:
> I am building the kernel for parisc for the first time.
> Have I missed anything important?

Where did you get your kernel source? e.g. I cloned foo, merged bar
into, foo and then compiled.

Cheers,
Carlos.
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2009/2/27 Carlos O'Donell <carlos@systemhalted.org>:
> On Fri, Feb 27, 2009 at 5:47 AM, Alexander Beregalov
> <a.beregalov@gmail.com> wrote:
>> I am building the kernel for parisc for the first time.
>> Have I missed anything important?
>
> Where did you get your kernel source? e.g. I cloned foo, merged bar
> into, foo and then compiled.

I cloned current Linus's git tree.
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On Fri, Feb 27, 2009 at 8:04 AM, Alexander Beregalov
<a.beregalov@gmail.com> wrote:
> 2009/2/27 Carlos O'Donell <carlos@systemhalted.org>:
>> On Fri, Feb 27, 2009 at 5:47 AM, Alexander Beregalov
>> <a.beregalov@gmail.com> wrote:
>>> I am building the kernel for parisc for the first time.
>>> Have I missed anything important?
>>
>> Where did you get your kernel source? e.g. I cloned foo, merged bar
>> into, foo and then compiled.
>
> I cloned current Linus's git tree.

I always merge from Kyle's tree (parisc maintainer), which has the
latest parisc patches. There are at least 26 patches in kyle's tree
which are not on Linus' git tree.

e.g.
git remote -v
kyle    git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
origin  git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git

Cheers,
Carlos.
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2009/2/27 Carlos O'Donell <carlos@systemhalted.org>:
> On Fri, Feb 27, 2009 at 8:04 AM, Alexander Beregalov
> <a.beregalov@gmail.com> wrote:
>> 2009/2/27 Carlos O'Donell <carlos@systemhalted.org>:
>>> On Fri, Feb 27, 2009 at 5:47 AM, Alexander Beregalov
>>> <a.beregalov@gmail.com> wrote:
>>>> I am building the kernel for parisc for the first time.
>>>> Have I missed anything important?
>>>
>>> Where did you get your kernel source? e.g. I cloned foo, merged bar
>>> into, foo and then compiled.
>>
>> I cloned current Linus's git tree.
>
> I always merge from Kyle's tree (parisc maintainer), which has the
> latest parisc patches. There are at least 26 patches in kyle's tree
> which are not on Linus' git tree.
>
> e.g.
> git remote -v
> kyle =C2=A0 =C2=A0git://git.kernel.org/pub/scm/linux/kernel/git/kyle/=
parisc-2.6.git
> origin =C2=A0git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/l=
inux-2.6.git

Thanks.

The same problem: ld segfaults:

do_page_fault() pid=3D15739 command=3D'ld' type=3D15 address=3D0x00000c=
84

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  0006ff0f ffffffff 407d542b fb6b2640
r04-07  408e3f6c fb6afa37 fb6afa48 00000c84
r08-11  fb6b2aa3 00000000 fb6b0520 00000000
r12-15  00000025 fb6afa0c 00068958 00000042
r16-19  4048e518 00000010 fb6af9cc 408e3f6c
r20-23  80808000 80808080 fefefeff 81010100
r24-27  fb6b25d0 fb6afa47 00000c84 000675c0
r28-31  feff0000 00000073 fb6b2c00 00000c84
sr00-03  00002e25 00000000 00000000 00002e25
sr04-07  00002e25 00002e25 00002e25 00002e25

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
=46PSR: 00000000000000000000000000000000
=46PER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 00000000000=
00000
fr04-07  00000020ef80068c eec228401016a6e0 1051b81000000000 00000000000=
00000
fr08-11  ffffff9cefc16000 efc11bc000000003 00000000eec22840 00000000fff=
ff000
fr12-15  fb6afa349c4df9fe fb6afa0c10128010 fb6af9d4ac2f99e4 10ba6aa8eaf=
8382a
fr16-19  0004010f10574010 10128010efc241c8 1043a1540000000b 10574267000=
0000f
fr20-23  106002f800000000 0004000e1016aa9c fb6afa4700008000 fb6afa0c000=
00af8
fr24-27  0000000000000000 0000000000000000 00000000812df5e4 896cf5835c4=
6e68e
fr28-31  1aab4042650e89ca eb5bc7cd1016aa38 1aab404200000000 efc24240008=
00480

IASQ: 00002e25 00002e25 IAOQ: 4080f407 4080f40b
 IIR: 0f401094    ISR: 00002e25  IOR: 00000c84
 CPU:        0   CR30: c410c000 CR31: 0185e003
 ORIG_R28: 00000000
 IAOQ[0]: 0x4080f404
 IAOQ[1]: 0x4080f408
 RP(r2): 0x407d5428

The kernel is 2.6.24-gentoo-r3-livecd32 and I do not have System.map fo=
r it.
It seems I need to use another LiveCD for building kernel (in chroot
environment)
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From - Thu Nov 08 21:03:43 2018
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On Fri, Feb 27, 2009 at 10:40 AM, Alexander Beregalov
<a.beregalov@gmail.com> wrote:
> The same problem: ld segfaults:
> do_page_fault() pid=15739 command='ld' type=15 address=0x00000c84

This is likely a bug in the static linker, or a miscompilation of the
static linker by your toolchain.

What were the binutils testsuite results for this static linker?

Cheers,
Carlos.
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From - Thu Nov 08 21:03:43 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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> On Fri, Feb 27, 2009 at 10:40 AM, Alexander Beregalov
> <a.beregalov@gmail.com> wrote:
> > The same problem: ld segfaults:
> > do_page_fault() pid=15739 command='ld' type=15 address=0x00000c84
> 
> This is likely a bug in the static linker, or a miscompilation of the
> static linker by your toolchain.

If the problem is fully, reproducable, then I agree its likely
a toolchain issue.  However, as indicated multiple times on the list,
we get random segfaults in various programs.  In my experience,
this occurs more frequently with kernels after 2.6.22 but I'm sure
2.6.22 is affected.

I've tried many kernels after 2.6.22 but I haven't found one that
I like.  2.6.28 doesn't crash on PA 8800 (SMP 64-bit), but I get
too many random segfaults doing GCC builds.

The extract/deposit/shift bug that Helge found recently looks 
important as it causes undefined behavior that appears to vary
from processor to processor.  A patch to check for this was recently
applied to GAS.

I was hoping to try Helge's recent changes but I don't think they
are in Kyle's parisc tree.

If the problem is reproducible, try running gdb to get a backtrace
(e.g., gdb -c core /usr/bin/ld).

I am fairly certain the binutils testsuite for ld 2.19.1 is clean.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:43 2018
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> The same problem: ld segfaults:
> 
> do_page_fault() pid=15739 command='ld' type=15 address=0x00000c84
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001101111111100001111 Not tainted
> r00-03  0006ff0f ffffffff 407d542b fb6b2640
> r04-07  408e3f6c fb6afa37 fb6afa48 00000c84
> r08-11  fb6b2aa3 00000000 fb6b0520 00000000
> r12-15  00000025 fb6afa0c 00068958 00000042
> r16-19  4048e518 00000010 fb6af9cc 408e3f6c
> r20-23  80808000 80808080 fefefeff 81010100
> r24-27  fb6b25d0 fb6afa47 00000c84 000675c0
> r28-31  feff0000 00000073 fb6b2c00 00000c84
> sr00-03  00002e25 00000000 00000000 00002e25
> sr04-07  00002e25 00002e25 00002e25 00002e25
> 
>       VZOUICununcqcqcqcqcqcrmunTDVZOUI
> FPSR: 00000000000000000000000000000000
> FPER1: 00000000
> fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> fr04-07  00000020ef80068c eec228401016a6e0 1051b81000000000 0000000000000000
> fr08-11  ffffff9cefc16000 efc11bc000000003 00000000eec22840 00000000fffff000
> fr12-15  fb6afa349c4df9fe fb6afa0c10128010 fb6af9d4ac2f99e4 10ba6aa8eaf8382a
> fr16-19  0004010f10574010 10128010efc241c8 1043a1540000000b 105742670000000f
> fr20-23  106002f800000000 0004000e1016aa9c fb6afa4700008000 fb6afa0c00000af8
> fr24-27  0000000000000000 0000000000000000 00000000812df5e4 896cf5835c46e68e
> fr28-31  1aab4042650e89ca eb5bc7cd1016aa38 1aab404200000000 efc2424000800480
> 
> IASQ: 00002e25 00002e25 IAOQ: 4080f407 4080f40b
>  IIR: 0f401094    ISR: 00002e25  IOR: 00000c84
>  CPU:        0   CR30: c410c000 CR31: 0185e003
>  ORIG_R28: 00000000
>  IAOQ[0]: 0x4080f404
>  IAOQ[1]: 0x4080f408
>  RP(r2): 0x407d5428

The insn is:

dave@hiauly6:~$ disasm 0x0f401094
   0:   0f 40 10 94     ldw 0(r26),r20

The program is probably in libc or the dynamic loader.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:43 2018
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Subject: Re: [rtc-linux] Re: [PATCH/RFC 0/5] Generic RTC class driver
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Cc: rtc-linux@googlegroups.com, Geert.Uytterhoeven@sonycom.com,
	David Woodhouse <dwmw2@infradead.org>,
	Richard Zidlicky <rz@linux-m68k.org>,
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To: Alessandro Zummo <alessandro.zummo@towertech.it>
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On Wed, 25 Feb 2009, Alessandro Zummo wrote:

> > I didn't know NTP was broken with RTC class drivers?
> > 
> > So we should actually keep on using genrtc instead of rtc-ppc/rtc-generic for
> > now? ;-)
> 
>  broken here means that the kernel won't save the time to the hardware
>  rtc every 11 minutes as it used to do. normal NTP operations are unaffected.

 I posted patches to support it last year -- from your answer I infer they 
were not applied in the end.  I'll see if I can try to refresh them and 
push again next time I'll be upgrading my kernel.

  Maciej
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From - Thu Nov 08 21:03:43 2018
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On Fri, 27 Feb 2009 17:17:36 +0000 (GMT)
"Maciej W. Rozycki" <macro@linux-mips.org> wrote:

>  I posted patches to support it last year -- from your answer I infer they 
> were not applied in the end.  I'll see if I can try to refresh them and 
> push again next time I'll be upgrading my kernel.

 they were almost ok but there are still a few things that I
 need to check before incorporating them. 

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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From: Alexander Beregalov <a.beregalov@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: can't compile kernel for parisc
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2009/2/27 John David Anglin <dave@hiauly1.hia.nrc.ca>:
>> On Fri, Feb 27, 2009 at 10:40 AM, Alexander Beregalov
>> <a.beregalov@gmail.com> wrote:
>> > The same problem: ld segfaults:
>> > do_page_fault() pid=3D15739 command=3D'ld' type=3D15 address=3D0x0=
0000c84
>>
>> This is likely a bug in the static linker, or a miscompilation of th=
e
>> static linker by your toolchain.
>
> If the problem is fully, reproducable, then I agree its likely
> a toolchain issue. =C2=A0However, as indicated multiple times on the =
list,
> we get random segfaults in various programs. =C2=A0In my experience,
> this occurs more frequently with kernels after 2.6.22 but I'm sure
> 2.6.22 is affected.
Yes, it is fully reproducible, I have tried 2.18 and 2.19.1 versions
of binutils.

(gdb) run
Starting program: /usr/bin/ld --build-id -o .tmp_vmlinux1 -T
arch/parisc/kernel/vmlinux.lds arch/parisc/kernel/head.o
init/built-in.o --start-group usr/built-in.o arch/parisc/mm/built-in.o
arch/parisc/kernel/built-in.o arch/parisc/math-emu/built-in.o
arch/parisc/kernel/init_task.o kernel/built-in.o mm/built-in.o
fs/built-in.o ipc/built-in.o security/built-in.o crypto/built-in.o
block/built-in.o lib/lib.a arch/parisc/lib/lib.a
/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.3.3/libgcc.a lib/built-in.o
arch/parisc/lib/built-in.o
/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.3.3/libgcc.a
drivers/built-in.o sound/built-in.o firmware/built-in.o net/built-in.o
--end-group
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
/usr/bin/ld:
Program received signal SIGSEGV, Segmentation fault.
0x4080f404 in strlen () from /lib/libc.so.6
(gdb) backtrace
#0  0x4080f404 in strlen () from /lib/libc.so.6
#1  0x407d5428 in vfprintf () from /lib/libc.so.6
#2  0x407d1304 in ?? () from /lib/libc.so.6
#3  0x407d18b0 in vfprintf () from /lib/libc.so.6
#4  0x4088359c in __vfprintf_chk () from /lib/libc.so.6
#5  0x4040cdc8 in _bfd_default_error_handler () from
/usr/lib/binutils/hppa2.0-unknown-linux-gnu/2.18/libbfd-2.18.so
#6  0x40432034 in ?? () from
/usr/lib/binutils/hppa2.0-unknown-linux-gnu/2.18/libbfd-2.18.so
#7  0x40452f58 in bfd_elf_final_link () from
/usr/lib/binutils/hppa2.0-unknown-linux-gnu/2.18/libbfd-2.18.so
#8  0x4042e764 in ?? () from
/usr/lib/binutils/hppa2.0-unknown-linux-gnu/2.18/libbfd-2.18.so
#9  0x00029f3c in ?? ()
#10 0x000295c8 in main ()

Glibc is  2.9_p20081201, I will try older version.
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On Wed, Feb 25, 2009 at 11:18:36AM +0100, Alessandro Zummo wrote:
> On Wed, 25 Feb 2009 11:00:13 +0100 (CET)
> Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:
> 
> > I didn't know NTP was broken with RTC class drivers?
> > 
> > So we should actually keep on using genrtc instead of rtc-ppc/rtc-generic for
> > now? ;-)
> 
>  broken here means that the kernel won't save the time to the hardware
>  rtc every 11 minutes as it used to do. normal NTP operations are unaffected.

seems like so far ppc is the only architecture attempting to implement it
correctly, all others either have it unimplemented or use the broken
by design set_rtc_mmss method. 
Also note that in most cases hwclock has much better possibilities
to do a good job.

Regarding genrtc vs rtc-ppc/rtc-generic it is worth noting that genrtc
provides RTC_UIE emulation which is of some use for exotic programs like 
"chrony".
Afaics this is also the only situation without a good userspace workaround 
and chrony never worked well for me so I have nothing against junking the 
code.

Regarding a possible reorganisation from the generic to all separate drivers
I agree that the habit of putting rtc-chip specific code in asm-generic is 
confusing at best. 
In many cases such code might be better placed in drivers/rtc or 
include/linux/rtc/chipname.

Imho this does not preclude the possibility to use a generic framework. While
there certainly are valid reasons to have separate drivers in some cases 
I do not see much value in rewriting everything as separate drivers where 
the generic framework works well.

Richard
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John David Anglin wrote:
> I was hoping to try Helge's recent changes but I don't think they
> are in Kyle's parisc tree.

All my (important) patches are in Kyle's tree, but you need to
take a look into the "merge" and "parisc" branches of his tree:
http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=shortlog;h=merge
http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=shortlog;h=parisc

Helge
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> (no debugging symbols found)
> /usr/bin/ld:
> Program received signal SIGSEGV, Segmentation fault.
> 0x4080f404 in strlen () from /lib/libc.so.6
> (gdb) backtrace
> #0  0x4080f404 in strlen () from /lib/libc.so.6
> #1  0x407d5428 in vfprintf () from /lib/libc.so.6
> #2  0x407d1304 in ?? () from /lib/libc.so.6
> #3  0x407d18b0 in vfprintf () from /lib/libc.so.6
> #4  0x4088359c in __vfprintf_chk () from /lib/libc.so.6
> #5  0x4040cdc8 in _bfd_default_error_handler () from
> /usr/lib/binutils/hppa2.0-unknown-linux-gnu/2.18/libbfd-2.18.so
> #6  0x40432034 in ?? () from
> /usr/lib/binutils/hppa2.0-unknown-linux-gnu/2.18/libbfd-2.18.so
> #7  0x40452f58 in bfd_elf_final_link () from
> /usr/lib/binutils/hppa2.0-unknown-linux-gnu/2.18/libbfd-2.18.so
> #8  0x4042e764 in ?? () from
> /usr/lib/binutils/hppa2.0-unknown-linux-gnu/2.18/libbfd-2.18.so
> #9  0x00029f3c in ?? ()
> #10 0x000295c8 in main ()
> 
> Glibc is  2.9_p20081201, I will try older version.

Assuming you have the glibc debug libraries, try the same backtrace
with LD_LIBRARY_PATH set to /usr/lib/debug.  Try to determine
if a bad pointer has been passed from _bfd_default_error_handler.
This seems likely.

binutils has likely been miscompiled, or your kernel build has
exposed a problem in binutils.  We may be not handling a relocation
correctly during the final link.

If you can, would you build CVS binutils with debugging.  Disable
building shared libraries so we don't use libbfd-2.18.so.  Install
it somewhere.  Replace your current versions of as and ld.  Then
redo the kernel build.  If the same error occurs, we will have a
version that can be debugged.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [rtc-linux] Re: [PATCH/RFC 0/5] Generic RTC class driver
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From - Thu Nov 08 21:03:44 2018
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From: Alessandro Zummo <alessandro.zummo@towertech.it>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [rtc-linux] Re: [PATCH/RFC 0/5] Generic RTC class driver
Date: Mon, 2 Mar 2009 11:03:10 +0100
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Cc: Richard Zidlicky <rz@linux-m68k.org>, rtc-linux@googlegroups.com,
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On Mon, 2 Mar 2009 10:54:14 +0100 (CET)
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:

> Indeed. You can have a working RTC class driver for lots of hardware by just
> writing ca. 100 lines of code on top of the generic framework.

 That's true, but we would then have two generic frameworks. And one
 of them will have its code scattered all around the kernel.

 So you either use the old rtc framework, which is perfectly functional,
 or you move to the new rtc lass and write the drivers.

 Layering a generic framework over another generic framework
 is quite a nonsense . 

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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From - Thu Nov 08 21:03:44 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.m68k
Subject: Re: [rtc-linux] Re: [PATCH/RFC 0/5] Generic RTC class driver
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Cc: Richard Zidlicky <rz@linux-m68k.org>, rtc-linux@googlegroups.com,
	David Woodhouse <dwmw2@infradead.org>,
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To: Alessandro Zummo <alessandro.zummo@towertech.it>
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On Mon, 2 Mar 2009, Alessandro Zummo wrote:
> On Mon, 2 Mar 2009 10:54:14 +0100 (CET)
> Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:
> > Indeed. You can have a working RTC class driver for lots of hardwar=
e by just
> > writing ca. 100 lines of code on top of the generic framework.
>=20
>  That's true, but we would then have two generic frameworks. And one
>  of them will have its code scattered all around the kernel.
>=20
>  So you either use the old rtc framework, which is perfectly function=
al,
>  or you move to the new rtc lass and write the drivers.

So I can solve my problem (autoloading the RTC driver on PS3 by udev) b=
y
converting the old genrtc driver into a platform device driver and crea=
ting
platform devices where appropriate.

However, this doesn't solve the distro's problem: as the old RTC framew=
ork
depends on RTC_LIB=3Dn, you cannot have both old and new RTC drivers in=
 your
(single) distro kernel. That's why dmwm2 created drivers/rtc/rtc-ppc.c:=
 Fedora
had to support machines with both old and new RTC drivers. As all of th=
e old
drivers are actually behind the ppc_md.[sg]et_rtc_time() abstraction, t=
his was
very easy.

Hence it's all or nothing, and we have to convert all of them.

drivers/rtc/rtc-generic.c would allow to have a working system without =
old
RTC drivers, until all low-level code has been converted to individual =
RTC
drivers.

>  Layering a generic framework over another generic framework
>  is quite a nonsense .=20

IMHO these two generic frameworks are quite different: [sg]et_rtc_time(=
)
abstracts the low-level RTC hardware interface, while RTC class handles=
 the
interaction with userspace.

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Bel=
gium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
Internet: http://www.sony-europe.com/

A division of Sony Europe (Belgium) N.V.
VAT BE 0413.825.160 =B7 RPR Brussels
=46ortis =B7 BIC GEBABEBB =B7 IBAN BE41293037680010
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From: Alessandro Zummo <alessandro.zummo@towertech.it>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.m68k
Subject: Re: [rtc-linux] Re: [PATCH/RFC 0/5] Generic RTC class driver
Date: Mon, 2 Mar 2009 12:09:50 +0100
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	David Woodhouse <dwmw2@infradead.org>,
	linux-parisc@vger.kernel.org,
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To: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
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On Mon, 2 Mar 2009 11:28:01 +0100 (CET)
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:

> So I can solve my problem (autoloading the RTC driver on PS3 by udev) by
> converting the old genrtc driver into a platform device driver and creating
> platform devices where appropriate.

 yes. btw, if you are building a kernel specific for the PS3, I would
 compile the rtc driver statically, otherwise it won't be available
 early on boot.
 
> However, this doesn't solve the distro's problem: as the old RTC framework
> depends on RTC_LIB=n, you cannot have both old and new RTC drivers in your
> (single) distro kernel. That's why dmwm2 created drivers/rtc/rtc-ppc.c: Fedora
> had to support machines with both old and new RTC drivers. As all of the old
> drivers are actually behind the ppc_md.[sg]et_rtc_time() abstraction, this was
> very easy.

 ok, generic kernel. you will have to load the modules on initrd. no, sadly you
 can't have both of them. you might stick with the old interface or
 convert them all. 

> Hence it's all or nothing, and we have to convert all of them.
> 
> drivers/rtc/rtc-generic.c would allow to have a working system without old
> RTC drivers, until all low-level code has been converted to individual RTC
> drivers.

 I know but I have enough experience to foresee that once a generic over generic
 framework is in place it's very hard to get rid of it because people
 will have no incentives.

 If you really need rtc-generic you can keep using it even if it's 
 not in the kernel, distributions often have their specific
 set of kernel patches.

 But I'd strongly suggest to plan and execute a conversion process.


> >  Layering a generic framework over another generic framework
> >  is quite a nonsense . 
> 
> IMHO these two generic frameworks are quite different: [sg]et_rtc_time()
> abstracts the low-level RTC hardware interface, while RTC class handles the
> interaction with userspace.

 When I wrote it my intention was to make it as an abstraction _between_
 the userspace and the hardware according to the platform/device model.

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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2009/2/28 John David Anglin <dave@hiauly1.hia.nrc.ca>:
>> (no debugging symbols found)
>> /usr/bin/ld:
>> Program received signal SIGSEGV, Segmentation fault.
>> 0x4080f404 in strlen () from /lib/libc.so.6
>> (gdb) backtrace
>> #0 =C2=A00x4080f404 in strlen () from /lib/libc.so.6
>> #1 =C2=A00x407d5428 in vfprintf () from /lib/libc.so.6
>> #2 =C2=A00x407d1304 in ?? () from /lib/libc.so.6
>> #3 =C2=A00x407d18b0 in vfprintf () from /lib/libc.so.6
>> #4 =C2=A00x4088359c in __vfprintf_chk () from /lib/libc.so.6
>> #5 =C2=A00x4040cdc8 in _bfd_default_error_handler () from
>> /usr/lib/binutils/hppa2.0-unknown-linux-gnu/2.18/libbfd-2.18.so
>> #6 =C2=A00x40432034 in ?? () from
>> /usr/lib/binutils/hppa2.0-unknown-linux-gnu/2.18/libbfd-2.18.so
>> #7 =C2=A00x40452f58 in bfd_elf_final_link () from
>> /usr/lib/binutils/hppa2.0-unknown-linux-gnu/2.18/libbfd-2.18.so
>> #8 =C2=A00x4042e764 in ?? () from
>> /usr/lib/binutils/hppa2.0-unknown-linux-gnu/2.18/libbfd-2.18.so
>> #9 =C2=A00x00029f3c in ?? ()
>> #10 0x000295c8 in main ()
>>
>> Glibc is =C2=A02.9_p20081201, I will try older version.
>
> Assuming you have the glibc debug libraries, try the same backtrace
> with LD_LIBRARY_PATH set to /usr/lib/debug. =C2=A0Try to determine
> if a bad pointer has been passed from _bfd_default_error_handler.
> This seems likely.
Hi John,

Thanks for you help
Is it more clear?

binutils-2.19.1, glibc-2.9_p20081201, gcc-4.3.3

/usr/bin/ld:
Program received signal SIGSEGV, Segmentation fault.
*__GI_strlen (str=3D0xc84 <Address 0xc84 out of bounds>) at strlen.c:64
64      strlen.c: No such file or directory.
        in strlen.c
(gdb) bt
#0  *__GI_strlen (str=3D0xc84 <Address 0xc84 out of bounds>) at strlen.=
c:64
#1  0x40542530 in _IO_vfprintf_internal (s=3D0xfb0d3520,
    format=3D0xfb0d2a0c "arch/parisc/kernel/built-in.o(.text.8+0x%lx):
cannot reach %s, recompile with -ffunction-sections", ap=3D0xfb0d29cc)
    at vfprintf.c:1581
#2  0x40543284 in buffered_vfprintf (s=3D0x4064ab98, format=3D0xfb0d2a3=
7
"): cannot reach %s, recompile with -ffunction-sections",
    args=3D0xfb0d55d0) at vfprintf.c:2188
#3  0x4053f2e0 in _IO_vfprintf_internal (s=3D0x4064ab98,
    format=3D0xfb0d2a0c "arch/parisc/kernel/built-in.o(.text.8+0x%lx):
cannot reach %s, recompile with -ffunction-sections", ap=3D0xfb0d29d4)
    at vfprintf.c:1288
#4  0x405eddb4 in ___vfprintf_chk (fp=3D0x4064ab98, flag=3D1,
    format=3D0xfb0d2a0c "arch/parisc/kernel/built-in.o(.text.8+0x%lx):
cannot reach %s, recompile with -ffunction-sections", ap=3D0xfb0d29d4)
    at vfprintf_chk.c:35
#5  0x4004ec74 in _bfd_default_error_handler (fmt=3D0x400c1089 "+0x%lx)=
:
cannot reach %s, recompile with -ffunction-sections")
    at /usr/include/bits/stdio2.h:128
#6  0x40074c94 in elf32_hppa_relocate_section (output_bfd=3D0x78d28,
info=3D0x68c00, input_bfd=3D0xd9060, input_section=3D0xf21c0,
    contents=3D0x43571008 "cows can fly", relocs=3D0x12b520,
local_syms=3D0x1891808, local_sections=3D0x1b350d8)
    at /var/tmp/portage/sys-devel/binutils-2.19.1/work/binutils-2.19.1/=
bfd/elf32-hppa.c:3599
#7  0x40099480 in bfd_elf_final_link (abfd=3D0x78d28, info=3D0x68c00)
    at /var/tmp/portage/sys-devel/binutils-2.19.1/work/binutils-2.19.1/=
bfd/elflink.c:9269
#8  0x40071374 in elf32_hppa_final_link (abfd=3D0xc84, info=3D0xfb0d2a3=
7)
    at /var/tmp/portage/sys-devel/binutils-2.19.1/work/binutils-2.19.1/=
bfd/elf32-hppa.c:3266
#9  0x0002a1e8 in ?? ()
#10 0x00029904 in main ()

Should I really recompile glibc with -ffunction-sections ?

bt full:

#5  0x4004ec74 in _bfd_default_error_handler (fmt=3D0x400c1089 "+0x%lx)=
:
cannot reach %s, recompile with -ffunction-sections")
    at /usr/include/bits/stdio2.h:128
        ap =3D (va_list) 0xfb3229d4
        bufp =3D 0xfb322a31 "+0x%lx): cannot reach %s, recompile with
-ffunction-sections"
        new_fmt =3D 0xfb322a0c
"arch/parisc/kernel/built-in.o(.text.8+0x%lx): cannot reach %s,
recompile with -ffunction-sections"
        p =3D 0x400c10a1 ", recompile with -ffunction-sections"
        avail =3D 902
        buf =3D "arch/parisc/kernel/built-in.o(.text.8+0x%lx): cannot
reach %s, recompile with
-ffunction-sections\000=C3=B2=C3=B7\000\000\000\006\000\000\000\001\000=
\000\000\000\000\000\000\001=C3=BF=C3=BF=C3=B3|=C3=BF=C3=BF=C3=BF=C3=BF=
\000\000\000\001\000\000\000\000\000\000\000\000@\r0\230\000\b\003\230\=
000\000\000\000\000\000\200\000\000\000\000\000@\r0\230\000\v\v
\000\000\000\000\000\000\000\n\000\000\000\b\000\000\000\004\000\000@h\=
000\000\000F\000\000\000=C2=B1\000\000\000=C2=B1@\f\017\000"...
        __PRETTY_FUNCTION__ =3D "_bfd_default_error_handler"
#6  0x40074c94 in elf32_hppa_relocate_section (output_bfd=3D0x78d28,
info=3D0x68c00, input_bfd=3D0xd9060, input_section=3D0xf21c0,
    contents=3D0x43571008 "cows can fly", relocs=3D0x12b520,
local_syms=3D0x1891808, local_sections=3D0x1b350d8)
    at /var/tmp/portage/sys-devel/binutils-2.19.1/work/binutils-2.19.1/=
bfd/elf32-hppa.c:3599
        howto =3D <value optimized out>
        sym =3D (Elf_Internal_Sym *) 0x18920c8
        sym_name =3D <value optimized out>
        warned_undef =3D 0
        r_symndx =3D <value optimized out>
        hh =3D (struct elf32_hppa_link_hash_entry *) 0x0
        sym_sec =3D (asection *) 0xf21c0
        relocation =3D 18446744073709532028
        plabel =3D <value optimized out>
        r_type =3D 8
        rstatus =3D bfd_reloc_notsupported
        local_got_offsets =3D (bfd_vma *) 0x1384b8
        htab =3D (struct elf32_hppa_link_hash_table *) 0x7af50
        rela =3D (Elf_Internal_Rela *) 0x12bac0
        relend =3D (Elf_Internal_Rela *) 0x12c018
        __PRETTY_FUNCTION__ =3D "elf32_hppa_relocate_section"


>
> binutils has likely been miscompiled, or your kernel build has
> exposed a problem in binutils. =C2=A0We may be not handling a relocat=
ion
> correctly during the final link.
>
> If you can, would you build CVS binutils with debugging. =C2=A0Disabl=
e
> building shared libraries so we don't use libbfd-2.18.so. =C2=A0Insta=
ll
> it somewhere. =C2=A0Replace your current versions of as and ld. =C2=A0=
Then
> redo the kernel build. =C2=A0If the same error occurs, we will have a
> version that can be debugged.

I will try it some time later.
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> Thanks for you help
> Is it more clear?

Yes.  This is good stuff.

> #6  0x40074c94 in elf32_hppa_relocate_section (output_bfd=0x78d28,
> info=0x68c00, input_bfd=0xd9060, input_section=0xf21c0,
>     contents=0x43571008 "cows can fly", relocs=0x12b520,
> local_syms=0x1891808, local_sections=0x1b350d8)

The bug is in this bit of code:

          (*_bfd_error_handler)
	    (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
	      hsh->target_section->owner,
	      stub_sec,
	      (long) hsh->stub_offset,
	      hsh->bh_root.string);

Either hsh->target_section->owner or hsh->bh_root.string is NULL.  Could
you put a break on this line and print the struct hsh in gdb?

> Should I really recompile glibc with -ffunction-sections ?

It probably will help.  If you are building for a PA 2.0 machine,
-mpa-risc-2-0 may also help as the branch the branch distance for
pc-relative calls is much bigger.

I thought -ffunction-sections was always used for kernel builds.

It's a bit of a puzzle as to why this error is triggered.  I think
this is coming from ./arch/parisc/kernel/traps.c.  I wouldn't have
thought the text in this file is large enough to trigger this error.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Either hsh->target_section->owner or hsh->bh_root.string is NULL. =C2=
=A0Could
> you put a break on this line and print the struct hsh in gdb?

bfd/elf32-hppa.c:
3568   /* Make sure we can reach the stub.  */
3569   if (max_branch_offset !=3D 0
3570       && value + addend + max_branch_offset >=3D 2*max_branch_offs=
et)
3571     {
3572       (*_bfd_error_handler)
3573         (_("%B(%A+0x%lx): cannot reach %s, recompile with
-ffunction-sections"),
3574          input_bfd,
3575          input_section,
3576          offset,
3577          hsh->bh_root.string);
3578       bfd_set_error (bfd_error_bad_value);
3579       return bfd_reloc_notsupported;
3580     }

(gdb) step
3572          (*_bfd_error_handler)

(gdb) info locals
howto =3D <value optimized out>
sym =3D (Elf_Internal_Sym *) 0x189ed40
sym_name =3D <value optimized out>
warned_undef =3D 0
r_symndx =3D <value optimized out>
hh =3D (struct elf32_hppa_link_hash_entry *) 0x0
sym_sec =3D (asection *) 0xf0870
relocation =3D 18446744073709532028
plabel =3D <value optimized out>
r_type =3D 8
rstatus =3D bfd_reloc_notsupported
local_got_offsets =3D (bfd_vma *) 0x137018
htab =3D (struct elf32_hppa_link_hash_table *) 0x78f70
rela =3D (Elf_Internal_Rela *) 0x12abd0
relend =3D (Elf_Internal_Rela *) 0x12b128
__PRETTY_FUNCTION__ =3D "elf32_hppa_relocate_section"

(gdb) print input_bfd
$4 =3D (bfd *) 0xae460

(gdb) print input_section
$5 =3D (asection *) 0xf0870

(gdb) print offset
No symbol "offset" in current context.

(gdb) print hsh->bh_root.string
No symbol "hsh" in current context.

(gdb) step
/usr/bin/ld:
Program received signal SIGSEGV, Segmentation fault.

I do not understand why there is no such symbols.
>
>> Should I really recompile glibc with -ffunction-sections ?
>
> It probably will help. =C2=A0If you are building for a PA 2.0 machine=
,
> -mpa-risc-2-0 may also help as the branch the branch distance for
> pc-relative calls is much bigger.
>
> I thought -ffunction-sections was always used for kernel builds.
>
> It's a bit of a puzzle as to why this error is triggered. =C2=A0I thi=
nk
> this is coming from ./arch/parisc/kernel/traps.c. =C2=A0I wouldn't ha=
ve
> thought the text in this file is large enough to trigger this error.
>
> Dave
> --
> J. David Anglin =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0dave.ang=
lin@nrc-cnrc.gc.ca
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> > Either hsh->target_section->owner or hsh->bh_root.string is NULL. =C2=A0C=
> ould
> > you put a break on this line and print the struct hsh in gdb?
> 
> bfd/elf32-hppa.c:
> 3568   /* Make sure we can reach the stub.  */
> 3569   if (max_branch_offset !=3D 0
> 3570       && value + addend + max_branch_offset >=3D 2*max_branch_offset)
> 3571     {
> 3572       (*_bfd_error_handler)
> 3573         (_("%B(%A+0x%lx): cannot reach %s, recompile with
> -ffunction-sections"),
> 3574          input_bfd,
> 3575          input_section,
> 3576          offset,
> 3577          hsh->bh_root.string);
> 3578       bfd_set_error (bfd_error_bad_value);
> 3579       return bfd_reloc_notsupported;
> 3580     }
> 
> (gdb) step
> 3572          (*_bfd_error_handler)

...

> (gdb) print hsh->bh_root.string
> No symbol "hsh" in current context.

> I do not understand why there is no such symbols.

As soon as you step into the error handler, you change the function
context.  So, there is no local symbol hsh there.  It's also possible
the symbol hsh is optimized away, particularly because of the way it's
derived fro the argument bh.

If hsh is not available, try bh->bh_root.  hsh is derived from
bh as follows:

  hsh = (struct bfd_hash_entry *) bh;

It's always tricky to debug optimized code.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > > Either hsh->target_section->owner or hsh->bh_root.string is NULL. =C2=A0C=
> > ould
> > > you put a break on this line and print the struct hsh in gdb?
> > 
> > bfd/elf32-hppa.c:
> > 3568   /* Make sure we can reach the stub.  */
> > 3569   if (max_branch_offset !=3D 0
> > 3570       && value + addend + max_branch_offset >=3D 2*max_branch_offset)
> > 3571     {

Another thought -- add one or more BFD_ASSERTs before the call.
For example,

	       BFD_ASSERT (hsh->bh_root.string);

> > 3572       (*_bfd_error_handler)
> > 3573         (_("%B(%A+0x%lx): cannot reach %s, recompile with
> > -ffunction-sections"),
> > 3574          input_bfd,
> > 3575          input_section,
> > 3576          offset,
> > 3577          hsh->bh_root.string);
> > 3578       bfd_set_error (bfd_error_bad_value);
> > 3579       return bfd_reloc_notsupported;
> > 3580     }

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [rtc-linux] Re: [PATCH/RFC 0/5] Generic RTC class driver
Date: Tue, 3 Mar 2009 11:41:23 +0100 (CET)
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Cc: Linux/m68k <linux-m68k@vger.kernel.org>,
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To: Alessandro Zummo <alessandro.zummo@towertech.it>
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On Mon, 2 Mar 2009, Alessandro Zummo wrote:
> On Mon, 2 Mar 2009 11:28:01 +0100 (CET)
> Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:
> > So I can solve my problem (autoloading the RTC driver on PS3 by udev) by
> > converting the old genrtc driver into a platform device driver and crea=
ting
> > platform devices where appropriate.
> =

>  yes. btw, if you are building a kernel specific for the PS3, I would
>  compile the rtc driver statically, otherwise it won't be available
>  early on boot.
>  =

> > However, this doesn't solve the distro's problem: as the old RTC framew=
ork
> > depends on RTC_LIB=3Dn, you cannot have both old and new RTC drivers in=
 your
> > (single) distro kernel. That's why dmwm2 created drivers/rtc/rtc-ppc.c:=
 Fedora
> > had to support machines with both old and new RTC drivers. As all of th=
e old
> > drivers are actually behind the ppc_md.[sg]et_rtc_time() abstraction, t=
his was
> > very easy.
> =

>  ok, generic kernel. you will have to load the modules on initrd. no, sad=
ly you
>  can't have both of them. you might stick with the old interface or
>  convert them all. =

> =

> > Hence it's all or nothing, and we have to convert all of them.
> > =

> > drivers/rtc/rtc-generic.c would allow to have a working system without =
old
> > RTC drivers, until all low-level code has been converted to individual =
RTC
> > drivers.
> =

>  I know but I have enough experience to foresee that once a generic over =
generic
>  framework is in place it's very hard to get rid of it because people
>  will have no incentives.

I know.

>  If you really need rtc-generic you can keep using it even if it's =

>  not in the kernel, distributions often have their specific
>  set of kernel patches.

rtc-generic is already in the kernel, it's just called rtc-parisc ;-)

>  But I'd strongly suggest to plan and execute a conversion process.

So would you accept a patch series that:
  1. Adds the missing module aliases to rtc-parisc (which is a bugfix),
  2. Moves the platform device creation out of rtc-ppc and into arch-specif=
ic
     code (which is also a bugfix),
  3. Consolidates rtc-parisc and rtc-ppc into rtc-generic (which is a clean=
up),
  4. Makes rtc-generic dependent on PARISC, PPC, and M68K (the existing
     [sg]et_rtc_time() users):
       a. without introducing ARCH_HAS_GENERIC_RTC,
       b. with a big fat warning in the Kconfig comment not relaxing the
          dependencies, as it's supposed to go away.
  4. Converts the PS3 RTC support into a separate driver, called rtc-ps3
     (as a bonus ;-)

? If yes, I'll cook it up.

Other RTC platform support can be converted into separate drivers later.

Thanks!

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Belgium

Phone:    +32 (0)2 700 8453
Fax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
Internet: http://www.sony-europe.com/

A division of Sony Europe (Belgium) N.V.
VAT BE 0413.825.160 =B7 RPR Brussels
Fortis =B7 BIC GEBABEBB =B7 IBAN BE41293037680010

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>> bfd/elf32-hppa.c:
>> 3568 =C2=A0 /* Make sure we can reach the stub. =C2=A0*/
>> 3569 =C2=A0 if (max_branch_offset !=3D3D 0
>> 3570 =C2=A0 =C2=A0 =C2=A0 && value + addend + max_branch_offset >=3D=
3D 2*max_branch_offset)
>> 3571 =C2=A0 =C2=A0 {
>> 3572 =C2=A0 =C2=A0 =C2=A0 (*_bfd_error_handler)
>> 3573 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (_("%B(%A+0x%lx): cannot reach %s, =
recompile with
>> -ffunction-sections"),
>> 3574 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0input_bfd,
>> 3575 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0input_section,
>> 3576 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0offset,
>> 3577 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0hsh->bh_root.string);
>> 3578 =C2=A0 =C2=A0 =C2=A0 bfd_set_error (bfd_error_bad_value);
>> 3579 =C2=A0 =C2=A0 =C2=A0 return bfd_reloc_notsupported;
>> 3580 =C2=A0 =C2=A0 }
>>
> As soon as you step into the error handler, you change the function
> context. =C2=A0So, there is no local symbol hsh there. =C2=A0It's als=
o possible
> the symbol hsh is optimized away, particularly because of the way it'=
s
> derived fro the argument bh.

Ok, I have recompiled binutils with -O0:

Breakpoint 1, final_link_relocate (input_section=3D0x105770,
contents=3D0x43661008 "cows can fly", rela=3D0x13fae8,
value=3D18446744073709532028,
    htab=3D0x8df70, sym_sec=3D0x105770, hh=3D0x0, info=3D0x7b890)
    at /var/tmp/portage/sys-devel/binutils-2.19.51.0.2/work/binutils-2.=
19.51.0.2/bfd/elf32-hppa.c:3572
3572          (*_bfd_error_handler)
(gdb) info locals
insn =3D -2021646334
r_type =3D 8
orig_r_type =3D 8
howto =3D (const struct reloc_howto_struct *) 0x403fb128
r_format =3D 12
r_field =3D e_fsel
-> input_bfd =3D (bfd *) 0xc3460
-> offset =3D 3204
max_branch_offset =3D 8192
hit_data =3D (bfd_byte *) 0x43661c8c "\207\200 \002\b\017\002B\b\020\00=
2^=C3=A8@=C3=80"
addend =3D -8
location =3D 269536388
-> hsh =3D (struct elf32_hppa_stub_hash_entry *) 0x933b8
val =3D 0

(gdb) print hsh->bh_root.string
$1 =3D 0x13919a8 "000000b2_b2:46+4068"

(gdb) print input_section
$2 =3D (asection *) 0x105770

Hm, they are not NULL.

ld segfaults on the next line again.
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From: Alessandro Zummo <alessandro.zummo@towertech.it>
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Subject: Re: [rtc-linux] Re: [PATCH/RFC 0/5] Generic RTC class driver
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Cc: Geert.Uytterhoeven@sonycom.com,
	Richard Zidlicky <rz@linux-m68k.org>,
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On Tue, 3 Mar 2009 11:41:23 +0100 (CET)
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:

> rtc-generic is already in the kernel, it's just called rtc-parisc ;-)

 Really? I never saw it :)

> >  But I'd strongly suggest to plan and execute a conversion process.
> 
> So would you accept a patch series that:
>   1. Adds the missing module aliases to rtc-parisc (which is a bugfix),
>   2. Moves the platform device creation out of rtc-ppc and into arch-specific
>      code (which is also a bugfix),
>   3. Consolidates rtc-parisc and rtc-ppc into rtc-generic (which is a cleanup),
>   4. Makes rtc-generic dependent on PARISC, PPC, and M68K (the existing
>      [sg]et_rtc_time() users):
>        a. without introducing ARCH_HAS_GENERIC_RTC,
>        b. with a big fat warning in the Kconfig comment not relaxing the
>           dependencies, as it's supposed to go away.
>   4. Converts the PS3 RTC support into a separate driver, called rtc-ps3
>      (as a bonus ;-)
> 
> ? If yes, I'll cook it up.
> 
> Other RTC platform support can be converted into separate drivers later.

 Seems reasonable. But please add a list of users of rtc-generic and information
 about their respective rtc hardware along with some general planning about
 which future driver would cover which users.

 And let's hope this is a beginning :)

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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> (gdb) print hsh->bh_root.string
> $1 =3D 0x13919a8 "000000b2_b2:46+4068"
> 
> (gdb) print input_section
> $2 =3D (asection *) 0x105770
> 
> Hm, they are not NULL.
> 
> ld segfaults on the next line again.

Ok, I think we need to look deeper (i.e., _bfd_default_error_handler
in bfd.c).  We might get this problem is _bfd_error_program_name is
corrupt.  Try stepping through _bfd_default_error_handler.

Thanks,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Cc: Alessandro Zummo <alessandro.zummo@towertech.it>,
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	rtc-linux@googlegroups.com, David Woodhouse <dwmw2@infradead.org>,
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On Tue, Mar 03, 2009 at 11:41:23AM +0100, Geert Uytterhoeven wrote:
> So would you accept a patch series that:
>   1. Adds the missing module aliases to rtc-parisc (which is a bugfix),
>   2. Moves the platform device creation out of rtc-ppc and into arch-specific
>      code (which is also a bugfix),
>   3. Consolidates rtc-parisc and rtc-ppc into rtc-generic (which is a cleanup),
>   4. Makes rtc-generic dependent on PARISC, PPC, and M68K (the existing
>      [sg]et_rtc_time() users):
>        a. without introducing ARCH_HAS_GENERIC_RTC,
>        b. with a big fat warning in the Kconfig comment not relaxing the
>           dependencies, as it's supposed to go away.
>   4. Converts the PS3 RTC support into a separate driver, called rtc-ps3
>      (as a bonus ;-)
> 
> ? If yes, I'll cook it up.
> 
> Other RTC platform support can be converted into separate drivers later.
> 
Did you miss the rtc-firmware thread?

http://groups.google.com/group/rtc-linux/browse_thread/thread/53e8d98966048f66/1d730cb4aa2f85f0?lnk=gst&q=rtc-firmware#1d730cb4aa2f85f0
http://groups.google.com/group/rtc-linux/browse_thread/thread/b3d10115c7e147f2/cb9c1530d9c3a433?lnk=gst&q=rtc-firmware#cb9c1530d9c3a433
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Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
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Cc: Linux/m68k <linux-m68k@vger.kernel.org>,
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To: Paul Mundt <lethal@linux-sh.org>
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On Wed, 4 Mar 2009, Paul Mundt wrote:
> On Tue, Mar 03, 2009 at 11:41:23AM +0100, Geert Uytterhoeven wrote:
> > So would you accept a patch series that:
> >   1. Adds the missing module aliases to rtc-parisc (which is a bugf=
ix),
> >   2. Moves the platform device creation out of rtc-ppc and into arc=
h-specific
> >      code (which is also a bugfix),
> >   3. Consolidates rtc-parisc and rtc-ppc into rtc-generic (which is=
 a cleanup),
> >   4. Makes rtc-generic dependent on PARISC, PPC, and M68K (the exis=
ting
> >      [sg]et_rtc_time() users):
> >        a. without introducing ARCH_HAS_GENERIC_RTC,
> >        b. with a big fat warning in the Kconfig comment not relaxin=
g the
> >           dependencies, as it's supposed to go away.
> >   4. Converts the PS3 RTC support into a separate driver, called rt=
c-ps3
> >      (as a bonus ;-)
> >=20
> > ? If yes, I'll cook it up.
> >=20
> > Other RTC platform support can be converted into separate drivers l=
ater.
> >=20
> Did you miss the rtc-firmware thread?
>=20
> http://groups.google.com/group/rtc-linux/browse_thread/thread/53e8d98=
966048f66/1d730cb4aa2f85f0?lnk=3Dgst&q=3Drtc-firmware#1d730cb4aa2f85f0
> http://groups.google.com/group/rtc-linux/browse_thread/thread/b3d1011=
5c7e147f2/cb9c1530d9c3a433?lnk=3Dgst&q=3Drtc-firmware#cb9c1530d9c3a433

Thanks Paul, I wasn't aware of that thread!

Yes, this is almost the same. The only part I don't agree with is the m=
ove of
the creation of the platform device from arch-specific code to rtc-firm=
ware.c,
as this makes autoloading the driver more difficult.

Seems like everybody but the RTC maintainer has an interest in having a=
n RTC
class driver on top of [gs]et_rtc_time()... ;-)

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Bel=
gium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
Internet: http://www.sony-europe.com/

A division of Sony Europe (Belgium) N.V.
VAT BE 0413.825.160 =B7 RPR Brussels
=46ortis =B7 BIC GEBABEBB =B7 IBAN BE41293037680010
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Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
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Cc: Geert.Uytterhoeven@sonycom.com, Paul Mundt <lethal@linux-sh.org>,
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On Wed, 4 Mar 2009 09:26:29 +0100 (CET)
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:

> Thanks Paul, I wasn't aware of that thread!
> 
> Yes, this is almost the same. The only part I don't agree with is the move of
> the creation of the platform device from arch-specific code to rtc-firmware.c,
> as this makes autoloading the driver more difficult.

 and it's also against a proper implementation of the device/driver model.

> Seems like everybody but the RTC maintainer has an interest in having an RTC
> class driver on top of [gs]et_rtc_time()... ;-)

 That's because everyone is lazy :) 

 Seriously, if you want to handle it in the way we wrote
 in the previous emails, it's ok for me.

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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Cc: rtc-linux@googlegroups.com, Paul Mundt <lethal@linux-sh.org>,
	Linux/m68k <linux-m68k@vger.kernel.org>,
	Richard Zidlicky <rz@linux-m68k.org>,
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	Kyle McMartin <kyle@mcmartin.ca>,
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To: Alessandro Zummo <alessandro.zummo@towertech.it>
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On Wed, 4 Mar 2009, Alessandro Zummo wrote:
> On Wed, 4 Mar 2009 09:26:29 +0100 (CET)
> Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:
>=20
> > Thanks Paul, I wasn't aware of that thread!
> >=20
> > Yes, this is almost the same. The only part I don't agree with is t=
he move of
> > the creation of the platform device from arch-specific code to rtc-=
firmware.c,
> > as this makes autoloading the driver more difficult.
>=20
>  and it's also against a proper implementation of the device/driver m=
odel.
>=20
> > Seems like everybody but the RTC maintainer has an interest in havi=
ng an RTC
> > class driver on top of [gs]et_rtc_time()... ;-)
>=20
>  That's because everyone is lazy :)=20
>=20
>  Seriously, if you want to handle it in the way we wrote
>  in the previous emails, it's ok for me.

OK, I will do so. Thanks!

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Bel=
gium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
Internet: http://www.sony-europe.com/

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=46ortis =B7 BIC GEBABEBB =B7 IBAN BE41293037680010
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From - Thu Nov 08 21:03:45 2018
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Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCH 0/7] Generic RTC class driver
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	linuxppc-dev@ozlabs.org, linux-m68k@vger.kernel.org,
	linux-kernel@vger.kernel.org, Paul Mundt <lethal@linux-sh.org>,
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To: Alessandro Zummo <alessandro.zummo@towertech.it>,
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        Hi Alessandro et al,

This patch series:
  1. Adds the missing module alias to rtc-parisc (which is a bugfix), a=
nd
     performs a few cleanups,
  2. Moves the platform device creation out of rtc-ppc and into arch-sp=
ecific
     code (which is also a bugfix),
  3. Consolidates rtc-parisc and rtc-ppc into rtc-generic (which is a c=
leanup),
  4. Hooks up rtc-generic on m68k (it's been using [sg]et_rtc_time() si=
nce
     ages),
  5. Makes rtc-generic dependent on PARISC, PPC, and M68K (the existing
     [sg]et_rtc_time() users):
       a. without introducing ARCH_HAS_GENERIC_RTC,
       b. with a big fat warning in the Kconfig comment discouraging pe=
ople
          from relaxing the dependencies.
  6. Converts the PS3 RTC support into a separate driver, called rtc-ps=
3
     (as a bonus ;-)

To reduce code churn, the order and number of the actual patches slight=
ly
differs:
  [1] parisc: rtc: get_rtc_time() returns unsigned int
  [2] parisc: rtc: platform_driver_probe() fixups
  [3] parisc: rtc: Add missing module alias
  [4] parisc: rtc: Rename rtc-parisc to rtc-generic
  [5] m68k: Hook up rtc-generic
  [6] powerpc: Hook up rtc-generic, and kill rtc-ppc
  [7] powerpc/ps3: Add rtc-ps3

 a/drivers/rtc/rtc-parisc.c              |   85 -----------------------=
--
 b/arch/m68k/include/asm/rtc.h           |    7 +-
 b/arch/m68k/kernel/time.c               |   18 +++++
 b/arch/parisc/Kconfig                   |    2=20
 b/arch/parisc/kernel/time.c             |    6 -
 b/arch/powerpc/include/asm/ps3.h        |    3=20
 b/arch/powerpc/kernel/time.c            |   16 ++++
 b/arch/powerpc/platforms/ps3/os-area.c  |    2=20
 b/arch/powerpc/platforms/ps3/platform.h |    2=20
 b/arch/powerpc/platforms/ps3/setup.c    |    2=20
 b/arch/powerpc/platforms/ps3/time.c     |   26 +++----
 b/drivers/rtc/Kconfig                   |   10 +--
 b/drivers/rtc/Makefile                  |    2=20
 b/drivers/rtc/rtc-generic.c             |   84 +++++++++++++++++++++++=
++
 b/drivers/rtc/rtc-parisc.c              |    5 -
 b/drivers/rtc/rtc-ps3.c                 |  106 +++++++++++++++++++++++=
++++++++-
 drivers/rtc/Kconfig                     |   22 +++---
 drivers/rtc/Makefile                    |    2=20
 drivers/rtc/rtc-parisc.c                |    6 -
 drivers/rtc/rtc-ppc.c                   |   70 ---------------------
 20 files changed, 271 insertions(+), 205 deletions(-)

These patches are relative to the "rtc-parisc" branch of Kyle's PA-RISC=
 git
repository, which already contains some cleanups for the rtc-parisc dri=
ver by
Dann, which already have been ack'ed by Alessandro:

http://git.kernel.org/?p=3Dlinux/kernel/git/kyle/parisc-2.6.git;a=3Dsho=
rtlog;h=3Drtc-parisc

Paul: Feel free to add your SuperH support.

I suppose the easiest way for this to go in is through Kyle's PA-RISC t=
ree, as
he already has the preceding patches? Can I have your acks, please?

Thanks!

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =C2=B7 Da Vincilaan 7-D1 =C2=B7 B-1935 Zaventem =C2=
=B7 Belgium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
Internet: http://www.sony-europe.com/

A division of Sony Europe (Belgium) N.V.
VAT BE 0413.825.160 =C2=B7 RPR Brussels
=46ortis =C2=B7 BIC GEBABEBB =C2=B7 IBAN BE41293037680010
--
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From - Thu Nov 08 21:03:45 2018
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCH 4/7] parisc: rtc: Rename rtc-parisc to rtc-generic
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Cc: rtc-linux@googlegroups.com, linux-parisc@vger.kernel.org,
	linuxppc-dev@ozlabs.org, linux-m68k@vger.kernel.org,
	linux-kernel@vger.kernel.org, Paul Mundt <lethal@linux-sh.org>,
	Dann Frazier <dannf@dannf.org>,
	Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
To: Alessandro Zummo <alessandro.zummo@towertech.it>,
	Kyle McMartin <kyle@mcmartin.ca>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1354>

The rtc-parisc driver is not PA-RISC specific at all, as it uses the existing
(but deprecated) generic RTC infrastructure ([gs]et_rtc_time()).
Rename the driver from rtc-parisc to rtc-generic.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
---
 arch/parisc/Kconfig       |    2 +-
 arch/parisc/kernel/time.c |    6 ++--
 drivers/rtc/Kconfig       |   10 +++--
 drivers/rtc/Makefile      |    2 +-
 drivers/rtc/rtc-generic.c |   84 +++++++++++++++++++++++++++++++++++++++++++++
 drivers/rtc/rtc-parisc.c  |   84 ---------------------------------------------
 6 files changed, 95 insertions(+), 93 deletions(-)
 create mode 100644 drivers/rtc/rtc-generic.c
 delete mode 100644 drivers/rtc/rtc-parisc.c

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index aacf11d..378b649 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -10,7 +10,7 @@ config PARISC
 	select HAVE_IDE
 	select HAVE_OPROFILE
 	select RTC_CLASS
-	select RTC_DRV_PARISC
+	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index e75cae6..86a99d0 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -216,14 +216,14 @@ void __init start_cpu_itimer(void)
 	per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
-static struct platform_device rtc_parisc_dev = {
-	.name = "rtc-parisc",
+static struct platform_device rtc_generic_dev = {
+	.name = "rtc-generic",
 	.id = -1,
 };
 
 static int __init rtc_init(void)
 {
-	if (platform_device_register(&rtc_parisc_dev) < 0)
+	if (platform_device_register(&rtc_generic_dev) < 0)
 		printk(KERN_ERR "unable to register rtc device...\n");
 
 	/* not necessarily an error */
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 81450fb..d0aeff2 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -677,12 +677,14 @@ config RTC_DRV_RS5C313
 	help
 	  If you say yes here you get support for the Ricoh RS5C313 RTC chips.
 
-config RTC_DRV_PARISC
-	tristate "PA-RISC firmware RTC support"
+config RTC_DRV_GENERIC
+	tristate "Generic RTC support"
+	# Please consider writing a new RTC driver instead of using the generic
+	# RTC abstraction
 	depends on PARISC
 	help
-	  Say Y or M here to enable RTC support on PA-RISC systems using
-	  firmware calls. If you do not know what you are doing, you should
+	  Say Y or M here to enable RTC support on systems using the generic
+	  RTC abstraction. If you do not know what you are doing, you should
 	  just say Y.
 
 config RTC_DRV_PPC
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 0e697aa..9c18a01 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -55,7 +55,7 @@ obj-$(CONFIG_RTC_DRV_PCF8563)	+= rtc-pcf8563.o
 obj-$(CONFIG_RTC_DRV_PCF8583)	+= rtc-pcf8583.o
 obj-$(CONFIG_RTC_DRV_PL030)	+= rtc-pl030.o
 obj-$(CONFIG_RTC_DRV_PL031)	+= rtc-pl031.o
-obj-$(CONFIG_RTC_DRV_PARISC)	+= rtc-parisc.o
+obj-$(CONFIG_RTC_DRV_GENERIC)	+= rtc-generic.o
 obj-$(CONFIG_RTC_DRV_PPC)	+= rtc-ppc.o
 obj-$(CONFIG_RTC_DRV_PXA)	+= rtc-pxa.o
 obj-$(CONFIG_RTC_DRV_R9701)	+= rtc-r9701.o
diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
new file mode 100644
index 0000000..9832200
--- /dev/null
+++ b/drivers/rtc/rtc-generic.c
@@ -0,0 +1,84 @@
+/* rtc-generic: RTC driver using the generic RTC abstraction
+ *
+ * Copyright (C) 2008 Kyle McMartin <kyle@mcmartin.ca>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+
+#include <asm/rtc.h>
+
+static int generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	unsigned int ret = get_rtc_time(tm);
+
+	if (ret & RTC_BATT_BAD)
+		return -EOPNOTSUPP;
+
+	return rtc_valid_tm(tm);
+}
+
+static int generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	if (set_rtc_time(tm) < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
+static const struct rtc_class_ops generic_rtc_ops = {
+	.read_time = generic_get_time,
+	.set_time = generic_set_time,
+};
+
+static int __init generic_rtc_probe(struct platform_device *dev)
+{
+	struct rtc_device *rtc;
+
+	rtc = rtc_device_register("rtc-generic", &dev->dev, &generic_rtc_ops,
+				  THIS_MODULE);
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
+
+	platform_set_drvdata(dev, rtc);
+
+	return 0;
+}
+
+static int __exit generic_rtc_remove(struct platform_device *dev)
+{
+	struct rtc_device *rtc = platform_get_drvdata(dev);
+
+	rtc_device_unregister(rtc);
+
+	return 0;
+}
+
+static struct platform_driver generic_rtc_driver = {
+	.driver = {
+		.name = "rtc-generic",
+		.owner = THIS_MODULE,
+	},
+	.remove = __exit_p(generic_rtc_remove),
+};
+
+static int __init generic_rtc_init(void)
+{
+	return platform_driver_probe(&generic_rtc_driver, generic_rtc_probe);
+}
+
+static void __exit generic_rtc_fini(void)
+{
+	platform_driver_unregister(&generic_rtc_driver);
+}
+
+module_init(generic_rtc_init);
+module_exit(generic_rtc_fini);
+
+MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Generic RTC driver");
+MODULE_ALIAS("platform:rtc-generic");
diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
deleted file mode 100644
index 48ef5b4..0000000
--- a/drivers/rtc/rtc-parisc.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/* rtc-parisc: RTC for HP PA-RISC firmware
- *
- * Copyright (C) 2008 Kyle McMartin <kyle@mcmartin.ca>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/time.h>
-#include <linux/platform_device.h>
-#include <linux/rtc.h>
-
-#include <asm/rtc.h>
-
-static int parisc_get_time(struct device *dev, struct rtc_time *tm)
-{
-	unsigned int ret = get_rtc_time(tm);
-
-	if (ret & RTC_BATT_BAD)
-		return -EOPNOTSUPP;
-
-	return rtc_valid_tm(tm);
-}
-
-static int parisc_set_time(struct device *dev, struct rtc_time *tm)
-{
-	if (set_rtc_time(tm) < 0)
-		return -EOPNOTSUPP;
-
-	return 0;
-}
-
-static const struct rtc_class_ops parisc_rtc_ops = {
-	.read_time = parisc_get_time,
-	.set_time = parisc_set_time,
-};
-
-static int __init parisc_rtc_probe(struct platform_device *dev)
-{
-	struct rtc_device *rtc;
-
-	rtc = rtc_device_register("rtc-parisc", &dev->dev, &parisc_rtc_ops,
-				  THIS_MODULE);
-	if (IS_ERR(rtc))
-		return PTR_ERR(rtc);
-
-	platform_set_drvdata(dev, rtc);
-
-	return 0;
-}
-
-static int __exit parisc_rtc_remove(struct platform_device *dev)
-{
-	struct rtc_device *rtc = platform_get_drvdata(dev);
-
-	rtc_device_unregister(rtc);
-
-	return 0;
-}
-
-static struct platform_driver parisc_rtc_driver = {
-	.driver = {
-		.name = "rtc-parisc",
-		.owner = THIS_MODULE,
-	},
-	.remove = __exit_p(parisc_rtc_remove),
-};
-
-static int __init parisc_rtc_init(void)
-{
-	return platform_driver_probe(&parisc_rtc_driver, parisc_rtc_probe);
-}
-
-static void __exit parisc_rtc_fini(void)
-{
-	platform_driver_unregister(&parisc_rtc_driver);
-}
-
-module_init(parisc_rtc_init);
-module_exit(parisc_rtc_fini);
-
-MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("HP PA-RISC RTC driver");
-MODULE_ALIAS("platform:rtc-parisc");
-- 
1.6.0.4

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From - Thu Nov 08 21:03:45 2018
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X-Mozilla-Keys:                                                                                 
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.m68k,gmane.linux.kernel
Subject: [PATCH 5/7] m68k: Hook up rtc-generic
Date: Mon,  9 Mar 2009 14:26:21 +0100
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Cc: rtc-linux@googlegroups.com, linux-parisc@vger.kernel.org,
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	linux-kernel@vger.kernel.org, Paul Mundt <lethal@linux-sh.org>,
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	Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
To: Alessandro Zummo <alessandro.zummo@towertech.it>,
	Kyle McMartin <kyle@mcmartin.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:1355 gmane.linux.ports.ppc64.devel:53260 gmane.linux.ports.m68k:519 gmane.linux.kernel:804307
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1355>

m68k has been a long time user of the generic RTC abstraction, so hook up
rtc-generic:
  - Create the "rtc-generic" platform device if mach_hwclk is set,
  - Add checks for mach_hwclk, in anticipation of RTC chip drivers being moved
    to drivers/rtc/.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
---
 arch/m68k/include/asm/rtc.h |    7 +++++--
 arch/m68k/kernel/time.c     |   18 ++++++++++++++++++
 drivers/rtc/Kconfig         |    2 +-
 3 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/arch/m68k/include/asm/rtc.h b/arch/m68k/include/asm/rtc.h
index 5d3e038..a4d08ea 100644
--- a/arch/m68k/include/asm/rtc.h
+++ b/arch/m68k/include/asm/rtc.h
@@ -36,13 +36,16 @@ static inline unsigned int get_rtc_time(struct rtc_time *time)
 	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
 	 * by the RTC when initially set to a non-zero value.
 	 */
-	mach_hwclk(0, time);
+	if (mach_hwclk)
+		mach_hwclk(0, time);
 	return RTC_24H;
 }
 
 static inline int set_rtc_time(struct rtc_time *time)
 {
-	return mach_hwclk(1, time);
+	if (mach_hwclk)
+		return mach_hwclk(1, time);
+	return -EINVAL;
 }
 
 static inline unsigned int get_rtc_ss(void)
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 7db4159..54d9807 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -18,6 +18,7 @@
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/rtc.h>
+#include <linux/platform_device.h>
 
 #include <asm/machdep.h>
 #include <asm/io.h>
@@ -159,3 +160,20 @@ int do_settimeofday(struct timespec *tv)
 }
 
 EXPORT_SYMBOL(do_settimeofday);
+
+
+static int __init rtc_init(void)
+{
+	struct platform_device *pdev;
+
+	if (!mach_hwclk)
+		return -ENODEV;
+
+	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	return 0;
+}
+
+module_init(rtc_init);
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index d0aeff2..c8ead87 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -681,7 +681,7 @@ config RTC_DRV_GENERIC
 	tristate "Generic RTC support"
 	# Please consider writing a new RTC driver instead of using the generic
 	# RTC abstraction
-	depends on PARISC
+	depends on PARISC || M68K
 	help
 	  Say Y or M here to enable RTC support on systems using the generic
 	  RTC abstraction. If you do not know what you are doing, you should
-- 
1.6.0.4

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From - Thu Nov 08 21:03:45 2018
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X-Mozilla-Keys:                                                                                 
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCH 3/7] parisc: rtc: Add missing module alias
Date: Mon,  9 Mar 2009 14:26:19 +0100
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To: Alessandro Zummo <alessandro.zummo@towertech.it>,
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Make udev autoload the driver

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
---
 drivers/rtc/rtc-parisc.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
index f4e871c..48ef5b4 100644
--- a/drivers/rtc/rtc-parisc.c
+++ b/drivers/rtc/rtc-parisc.c
@@ -81,3 +81,4 @@ module_exit(parisc_rtc_fini);
 MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("HP PA-RISC RTC driver");
+MODULE_ALIAS("platform:rtc-parisc");
-- 
1.6.0.4

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From - Thu Nov 08 21:03:45 2018
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Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCH 6/7] powerpc: Hook up rtc-generic, and kill rtc-ppc
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1357>

PowerPC has been a long time user of the generic RTC abstraction, so ho=
ok up
rtc-generic:
  - Create the "rtc-generic" platform device if ppc_md.get_rtc_time is =
set,
  - Kill rtc-ppc, as rtc-generic offers the same functionality in a mor=
e
    generic way, and supports autoloading through udev.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: David Woodhouse <dwmw2@infradead.org>
---
 arch/powerpc/kernel/time.c |   16 ++++++++++
 drivers/rtc/Kconfig        |   10 +------
 drivers/rtc/Makefile       |    1 -
 drivers/rtc/rtc-ppc.c      |   69 ------------------------------------=
--------
 4 files changed, 17 insertions(+), 79 deletions(-)
 delete mode 100644 drivers/rtc/rtc-ppc.c

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index c956403..926ea86 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -1127,3 +1127,19 @@ void div128_by_32(u64 dividend_high, u64 dividen=
d_low,
 	dr->result_low  =3D ((u64)y << 32) + z;
=20
 }
+
+static int __init rtc_init(void)
+{
+	struct platform_device *pdev;
+
+	if (!ppc_md.get_rtc_time)
+		return -ENODEV;
+
+	pdev =3D platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	return 0;
+}
+
+module_init(rtc_init);
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index c8ead87..6488c50 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -681,20 +681,12 @@ config RTC_DRV_GENERIC
 	tristate "Generic RTC support"
 	# Please consider writing a new RTC driver instead of using the gener=
ic
 	# RTC abstraction
-	depends on PARISC || M68K
+	depends on PARISC || M68K || PPC
 	help
 	  Say Y or M here to enable RTC support on systems using the generic
 	  RTC abstraction. If you do not know what you are doing, you should
 	  just say Y.
=20
-config RTC_DRV_PPC
-       tristate "PowerPC machine dependent RTC support"
-       depends on PPC
-       help
-	 The PowerPC kernel has machine-specific functions for accessing
-	 the RTC. This exposes that functionality through the generic RTC
-	 class.
-
 config RTC_DRV_PXA
        tristate "PXA27x/PXA3xx"
        depends on ARCH_PXA
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 9c18a01..bd209a5 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -56,7 +56,6 @@ obj-$(CONFIG_RTC_DRV_PCF8583)	+=3D rtc-pcf8583.o
 obj-$(CONFIG_RTC_DRV_PL030)	+=3D rtc-pl030.o
 obj-$(CONFIG_RTC_DRV_PL031)	+=3D rtc-pl031.o
 obj-$(CONFIG_RTC_DRV_GENERIC)	+=3D rtc-generic.o
-obj-$(CONFIG_RTC_DRV_PPC)	+=3D rtc-ppc.o
 obj-$(CONFIG_RTC_DRV_PXA)	+=3D rtc-pxa.o
 obj-$(CONFIG_RTC_DRV_R9701)	+=3D rtc-r9701.o
 obj-$(CONFIG_RTC_DRV_RS5C313)	+=3D rtc-rs5c313.o
diff --git a/drivers/rtc/rtc-ppc.c b/drivers/rtc/rtc-ppc.c
deleted file mode 100644
index c8e97e2..0000000
--- a/drivers/rtc/rtc-ppc.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * RTC driver for ppc_md RTC functions
- *
- * =C2=A9 2007 Red Hat, Inc.
- *
- * Author: David Woodhouse <dwmw2@infradead.org>
- *
- * This program is free software; you can redistribute it and/or modif=
y
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/rtc.h>
-#include <linux/platform_device.h>
-#include <asm/machdep.h>
-
-static int ppc_rtc_read_time(struct device *dev, struct rtc_time *tm)
-{
-	ppc_md.get_rtc_time(tm);
-	return 0;
-}
-
-static int ppc_rtc_set_time(struct device *dev, struct rtc_time *tm)
-{
-	return ppc_md.set_rtc_time(tm);
-}
-
-static const struct rtc_class_ops ppc_rtc_ops =3D {
-	.set_time =3D ppc_rtc_set_time,
-	.read_time =3D ppc_rtc_read_time,
-};
-
-static struct rtc_device *rtc;
-static struct platform_device *ppc_rtc_pdev;
-
-static int __init ppc_rtc_init(void)
-{
-	if (!ppc_md.get_rtc_time || !ppc_md.set_rtc_time)
-		return -ENODEV;
-
-	ppc_rtc_pdev =3D platform_device_register_simple("ppc-rtc", 0, NULL, =
0);
-	if (IS_ERR(ppc_rtc_pdev))
-		return PTR_ERR(ppc_rtc_pdev);
-
-	rtc =3D rtc_device_register("ppc_md", &ppc_rtc_pdev->dev,
-				  &ppc_rtc_ops, THIS_MODULE);
-	if (IS_ERR(rtc)) {
-		platform_device_unregister(ppc_rtc_pdev);
-		return PTR_ERR(rtc);
-	}
-
-	return 0;
-}
-
-static void __exit ppc_rtc_exit(void)
-{
-	rtc_device_unregister(rtc);
-	platform_device_unregister(ppc_rtc_pdev);
-}
-
-module_init(ppc_rtc_init);
-module_exit(ppc_rtc_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
-MODULE_DESCRIPTION("Generic RTC class driver for PowerPC");
--=20
1.6.0.4

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From - Thu Nov 08 21:03:46 2018
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.m68k,gmane.linux.kernel
Subject: [PATCH 1/7] parisc: rtc: get_rtc_time() returns unsigned int
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	linux-kernel@vger.kernel.org, Paul Mundt <lethal@linux-sh.org>,
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	Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
To: Alessandro Zummo <alessandro.zummo@towertech.it>,
	Kyle McMartin <kyle@mcmartin.ca>
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Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
---
 drivers/rtc/rtc-parisc.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
index b966f56..620b949 100644
--- a/drivers/rtc/rtc-parisc.c
+++ b/drivers/rtc/rtc-parisc.c
@@ -13,9 +13,7 @@
 
 static int parisc_get_time(struct device *dev, struct rtc_time *tm)
 {
-	unsigned long ret;

From - Thu Nov 08 21:03:46 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.m68k,gmane.linux.kernel
Subject: [PATCH 2/7] parisc: rtc: platform_driver_probe() fixups
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When using platform_driver_probe(), it's not needed to setup a .probe
function, and .remove should be marked __exit_p(), not __devexit_p().

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: dann frazier <dannf@hp.com>
---
 drivers/rtc/rtc-parisc.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
index 620b949..f4e871c 100644
--- a/drivers/rtc/rtc-parisc.c
+++ b/drivers/rtc/rtc-parisc.c
@@ -62,8 +62,7 @@ static struct platform_driver parisc_rtc_driver = {
 		.name = "rtc-parisc",
 		.owner = THIS_MODULE,
 	},
-	.probe = parisc_rtc_probe,
-	.remove = __devexit_p(parisc_rtc_remove),
+	.remove = __exit_p(parisc_rtc_remove),
 };
 
 static int __init parisc_rtc_init(void)
-- 
1.6.0.4

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.m68k,gmane.linux.kernel
Subject: [PATCH 7/7] powerpc/ps3: Add rtc-ps3
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Create a real RTC driver for PS3, and unhook the deprecated
ppc_md.[gs]et_rtc_time.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Geoff Levand <geoffrey.levand@am.sony.com>
---
 arch/powerpc/include/asm/ps3.h        |    3 +
 arch/powerpc/platforms/ps3/os-area.c  |    2 +
 arch/powerpc/platforms/ps3/platform.h |    2 -
 arch/powerpc/platforms/ps3/setup.c    |    2 -
 arch/powerpc/platforms/ps3/time.c     |   26 ++++-----
 drivers/rtc/Kconfig                   |    9 +++
 drivers/rtc/Makefile                  |    1 +
 drivers/rtc/rtc-ps3.c                 |  105 +++++++++++++++++++++++++++++++++
 8 files changed, 132 insertions(+), 18 deletions(-)
 create mode 100644 drivers/rtc/rtc-ps3.c

diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
index 67f1812..cdb6fd8 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -50,6 +50,9 @@ enum ps3_param_av_multi_out {
 
 enum ps3_param_av_multi_out ps3_os_area_get_av_multi_out(void);
 
+extern u64 ps3_os_area_get_rtc_diff(void);
+extern void ps3_os_area_set_rtc_diff(u64 rtc_diff);
+
 /* dma routines */
 
 enum ps3_dma_page_size {
diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platforms/ps3/os-area.c
index e1c83c2..86e392b 100644
--- a/arch/powerpc/platforms/ps3/os-area.c
+++ b/arch/powerpc/platforms/ps3/os-area.c
@@ -808,6 +808,7 @@ u64 ps3_os_area_get_rtc_diff(void)
 {
 	return saved_params.rtc_diff;
 }
+EXPORT_SYMBOL(ps3_os_area_get_rtc_diff);
 
 /**
  * ps3_os_area_set_rtc_diff - Set the rtc diff value.
@@ -823,6 +824,7 @@ void ps3_os_area_set_rtc_diff(u64 rtc_diff)
 		os_area_queue_work();
 	}
 }
+EXPORT_SYMBOL(ps3_os_area_set_rtc_diff);
 
 /**
  * ps3_os_area_get_av_multi_out - Returns the default video mode.
diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h
index 235c13e..136aa06 100644
--- a/arch/powerpc/platforms/ps3/platform.h
+++ b/arch/powerpc/platforms/ps3/platform.h
@@ -64,8 +64,6 @@ int ps3_set_rtc_time(struct rtc_time *time);
 
 void __init ps3_os_area_save_params(void);
 void __init ps3_os_area_init(void);
-u64 ps3_os_area_get_rtc_diff(void);
-void ps3_os_area_set_rtc_diff(u64 rtc_diff);
 
 /* spu */
 
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 3331ccb..6618182 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -270,8 +270,6 @@ define_machine(ps3) {
 	.init_IRQ			= ps3_init_IRQ,
 	.panic				= ps3_panic,
 	.get_boot_time			= ps3_get_boot_time,
-	.set_rtc_time			= ps3_set_rtc_time,
-	.get_rtc_time			= ps3_get_rtc_time,
 	.set_dabr			= ps3_set_dabr,
 	.calibrate_decr			= ps3_calibrate_decr,
 	.progress			= ps3_progress,
diff --git a/arch/powerpc/platforms/ps3/time.c b/arch/powerpc/platforms/ps3/time.c
index d0daf7d..b178a1e 100644
--- a/arch/powerpc/platforms/ps3/time.c
+++ b/arch/powerpc/platforms/ps3/time.c
@@ -19,6 +19,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/platform_device.h>
 
 #include <asm/rtc.h>
 #include <asm/lv1call.h>
@@ -74,23 +75,20 @@ static u64 read_rtc(void)
 	return rtc_val;
 }
 
-int ps3_set_rtc_time(struct rtc_time *tm)
+unsigned long __init ps3_get_boot_time(void)
 {
-	u64 now = mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
-		tm->tm_hour, tm->tm_min, tm->tm_sec);
-
-	ps3_os_area_set_rtc_diff(now - read_rtc());
-	return 0;
+	return read_rtc() + ps3_os_area_get_rtc_diff();
 }
 
-void ps3_get_rtc_time(struct rtc_time *tm)
+static int __init ps3_rtc_init(void)
 {
-	to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
-	tm->tm_year -= 1900;
-	tm->tm_mon -= 1;
-}
+	struct platform_device *pdev;
 
-unsigned long __init ps3_get_boot_time(void)
-{
-	return read_rtc() + ps3_os_area_get_rtc_diff();
+	pdev = platform_device_register_simple("rtc-ps3", -1, NULL, 0);
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	return 0;
 }
+
+module_init(ps3_rtc_init);
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 6488c50..7b6b63a 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -730,4 +730,13 @@ config RTC_DRV_MV
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-mv.
 
+config RTC_DRV_PS3
+	tristate "PS3 RTC"
+	depends on PPC_PS3
+	help
+	  If you say yes here you will get support for the RTC on PS3.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-ps3.
+
 endif # RTC_CLASS
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index bd209a5..d161d1d 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -75,3 +75,4 @@ obj-$(CONFIG_RTC_DRV_VR41XX)	+= rtc-vr41xx.o
 obj-$(CONFIG_RTC_DRV_WM8350)	+= rtc-wm8350.o
 obj-$(CONFIG_RTC_DRV_X1205)	+= rtc-x1205.o
 obj-$(CONFIG_RTC_DRV_PCF50633)	+= rtc-pcf50633.o
+obj-$(CONFIG_RTC_DRV_PS3)	+= rtc-ps3.o
diff --git a/drivers/rtc/rtc-ps3.c b/drivers/rtc/rtc-ps3.c
new file mode 100644
index 0000000..bacf37f
--- /dev/null
+++ b/drivers/rtc/rtc-ps3.c
@@ -0,0 +1,105 @@
+/*
+ * PS3 RTC Driver
+ *
+ * Copyright 2009 Sony Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.
+ * If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+
+#include <asm/lv1call.h>
+#include <asm/ps3.h>
+
+
+static u64 read_rtc(void)
+{
+	int result;
+	u64 rtc_val;
+	u64 tb_val;
+
+	result = lv1_get_rtc(&rtc_val, &tb_val);
+	BUG_ON(result);
+
+	return rtc_val;
+}
+
+static int ps3_get_time(struct device *dev, struct rtc_time *tm)
+{
+	to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
+	tm->tm_year -= 1900;
+	tm->tm_mon -= 1;
+	return 0;
+}
+
+static int ps3_set_time(struct device *dev, struct rtc_time *tm)
+{
+	u64 now = mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
+			 tm->tm_hour, tm->tm_min, tm->tm_sec);
+	ps3_os_area_set_rtc_diff(now - read_rtc());
+	return 0;
+}
+
+static const struct rtc_class_ops ps3_rtc_ops = {
+	.read_time = ps3_get_time,
+	.set_time = ps3_set_time,
+};
+
+static int __init ps3_rtc_probe(struct platform_device *dev)
+{
+	struct rtc_device *rtc;
+
+	rtc = rtc_device_register("rtc-ps3", &dev->dev, &ps3_rtc_ops,
+				  THIS_MODULE);
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
+
+	platform_set_drvdata(dev, rtc);
+	return 0;
+}
+
+static int __exit ps3_rtc_remove(struct platform_device *dev)
+{
+	rtc_device_unregister(platform_get_drvdata(dev));
+	return 0;
+}
+
+static struct platform_driver ps3_rtc_driver = {
+	.driver = {
+		.name = "rtc-ps3",
+		.owner = THIS_MODULE,
+	},
+	.remove = __exit_p(ps3_rtc_remove),
+};
+
+static int __init ps3_rtc_init(void)
+{
+	return platform_driver_probe(&ps3_rtc_driver, ps3_rtc_probe);
+}
+
+static void __exit ps3_rtc_fini(void)
+{
+	platform_driver_unregister(&ps3_rtc_driver);
+}
+
+module_init(ps3_rtc_init);
+module_exit(ps3_rtc_fini);
+
+MODULE_AUTHOR("Sony Corporation");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ps3 RTC driver");
+MODULE_ALIAS("platform:rtc-ps3");
-- 
1.6.0.4

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On Mon, 2009-03-09 at 14:26 +0100, Geert Uytterhoeven wrote:
> PowerPC has been a long time user of the generic RTC abstraction, so hook up
> rtc-generic:
>   - Create the "rtc-generic" platform device if ppc_md.get_rtc_time is set,
>   - Kill rtc-ppc, as rtc-generic offers the same functionality in a more
>     generic way, and supports autoloading through udev.
> 
> Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>

Acked-By: David Woodhouse <David.Woodhouse@intel.com>

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse@intel.com                              Intel Corporation

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On Mon,  9 Mar 2009 14:26:23 +0100
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:

 Hi,

   just a few notes:

> +
> +static int ps3_get_time(struct device *dev, struct rtc_time *tm)
> +{
> +	to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
> +	tm->tm_year -= 1900;
> +	tm->tm_mon -= 1;
> +	return 0;
> +}

 this should be return rtc_valid_tm() .

 can't you use functions from rtc-lib.c instead of 
 that to_tm ?

> +
> +MODULE_AUTHOR("Sony Corporation");

 real name, if possible and a contact address
 here . Just in case I need someone to bother :)

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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On Mon,  9 Mar 2009 14:26:16 +0100
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:


>         Hi Alessandro et al,
> 
> These patches are relative to the "rtc-parisc" branch of Kyle's PA-RISC git
> repository, which already contains some cleanups for the rtc-parisc driver by
> Dann, which already have been ack'ed by Alessandro:
> 
> http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=shortlog;h=rtc-parisc
> 
> Paul: Feel free to add your SuperH support.
> 
> I suppose the easiest way for this to go in is through Kyle's PA-RISC tree, as
> he already has the preceding patches? Can I have your acks, please?

 Here's mine. Thanks for your efforts . 
 
 Acked-by: Alessandro Zummo <a.zummo@towertech.it>

 btw I'll pretend I had never seen this patch
 if asked in court :)

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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From - Thu Nov 08 21:03:46 2018
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [rtc-linux] [PATCH 7/7] powerpc/ps3: Add rtc-ps3
Date: Mon, 9 Mar 2009 16:24:27 +0100 (CET)
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Cc: rtc-linux@googlegroups.com, Kyle McMartin <kyle@mcmartin.ca>,
	linux-parisc@vger.kernel.org, linuxppc-dev@ozlabs.org,
	linux-m68k@vger.kernel.org, linux-kernel@vger.kernel.org,
	Paul Mundt <lethal@linux-sh.org>,
	Dann Frazier <dannf@dannf.org>,
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To: Alessandro Zummo <alessandro.zummo@towertech.it>
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On Mon, 9 Mar 2009, Alessandro Zummo wrote:
> On Mon,  9 Mar 2009 14:26:23 +0100
> Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:
> > +
> > +static int ps3_get_time(struct device *dev, struct rtc_time *tm)
> > +{
> > +	to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
> > +	tm->tm_year -=3D 1900;
> > +	tm->tm_mon -=3D 1;
> > +	return 0;
> > +}
>=20
>  this should be return rtc_valid_tm() .

=46ixed.

>  can't you use functions from rtc-lib.c instead of=20
>  that to_tm ?

Ah, those pesky PPC-specific functions... switched to rtc_time_to_tm() =
and
rtc_tm_to_time().

> > +
> > +MODULE_AUTHOR("Sony Corporation");
>=20
>  real name, if possible and a contact address
>  here . Just in case I need someone to bother :)

All PS3-specific drivers have this. But there's an official PS3 platfor=
m
maintainer in MAINTAINERS.

=46rom 41020647c3e2b07e0302a905a926d6221061a128 Mon Sep 17 00:00:00 200=
1
=46rom: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Date: Tue, 24 Feb 2009 14:04:20 +0100
Subject: powerpc/ps3: Add rtc-ps3

Create a real RTC driver for PS3, and unhook the deprecated
ppc_md.[gs]et_rtc_time.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
---
 arch/powerpc/include/asm/ps3.h        |    3 +
 arch/powerpc/platforms/ps3/os-area.c  |    2 +
 arch/powerpc/platforms/ps3/platform.h |    2 -
 arch/powerpc/platforms/ps3/setup.c    |    2 -
 arch/powerpc/platforms/ps3/time.c     |   26 ++++-----
 drivers/rtc/Kconfig                   |    9 +++
 drivers/rtc/Makefile                  |    1 +
 drivers/rtc/rtc-ps3.c                 |  104 +++++++++++++++++++++++++=
++++++++
 8 files changed, 131 insertions(+), 18 deletions(-)
 create mode 100644 drivers/rtc/rtc-ps3.c

diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/=
ps3.h
index 67f1812..cdb6fd8 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -50,6 +50,9 @@ enum ps3_param_av_multi_out {
=20
 enum ps3_param_av_multi_out ps3_os_area_get_av_multi_out(void);
=20
+extern u64 ps3_os_area_get_rtc_diff(void);
+extern void ps3_os_area_set_rtc_diff(u64 rtc_diff);
+
 /* dma routines */
=20
 enum ps3_dma_page_size {
diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platfo=
rms/ps3/os-area.c
index e1c83c2..86e392b 100644
--- a/arch/powerpc/platforms/ps3/os-area.c
+++ b/arch/powerpc/platforms/ps3/os-area.c
@@ -808,6 +808,7 @@ u64 ps3_os_area_get_rtc_diff(void)
 {
 	return saved_params.rtc_diff;
 }
+EXPORT_SYMBOL(ps3_os_area_get_rtc_diff);
=20
 /**
  * ps3_os_area_set_rtc_diff - Set the rtc diff value.
@@ -823,6 +824,7 @@ void ps3_os_area_set_rtc_diff(u64 rtc_diff)
 		os_area_queue_work();
 	}
 }
+EXPORT_SYMBOL(ps3_os_area_set_rtc_diff);
=20
 /**
  * ps3_os_area_get_av_multi_out - Returns the default video mode.
diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platf=
orms/ps3/platform.h
index 235c13e..136aa06 100644
--- a/arch/powerpc/platforms/ps3/platform.h
+++ b/arch/powerpc/platforms/ps3/platform.h
@@ -64,8 +64,6 @@ int ps3_set_rtc_time(struct rtc_time *time);
=20
 void __init ps3_os_area_save_params(void);
 void __init ps3_os_area_init(void);
-u64 ps3_os_area_get_rtc_diff(void);
-void ps3_os_area_set_rtc_diff(u64 rtc_diff);
=20
 /* spu */
=20
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platform=
s/ps3/setup.c
index 3331ccb..6618182 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -270,8 +270,6 @@ define_machine(ps3) {
 	.init_IRQ			=3D ps3_init_IRQ,
 	.panic				=3D ps3_panic,
 	.get_boot_time			=3D ps3_get_boot_time,
-	.set_rtc_time			=3D ps3_set_rtc_time,
-	.get_rtc_time			=3D ps3_get_rtc_time,
 	.set_dabr			=3D ps3_set_dabr,
 	.calibrate_decr			=3D ps3_calibrate_decr,
 	.progress			=3D ps3_progress,
diff --git a/arch/powerpc/platforms/ps3/time.c b/arch/powerpc/platforms=
/ps3/time.c
index d0daf7d..b178a1e 100644
--- a/arch/powerpc/platforms/ps3/time.c
+++ b/arch/powerpc/platforms/ps3/time.c
@@ -19,6 +19,7 @@
  */
=20
 #include <linux/kernel.h>
+#include <linux/platform_device.h>
=20
 #include <asm/rtc.h>
 #include <asm/lv1call.h>
@@ -74,23 +75,20 @@ static u64 read_rtc(void)
 	return rtc_val;
 }
=20
-int ps3_set_rtc_time(struct rtc_time *tm)
+unsigned long __init ps3_get_boot_time(void)
 {
-	u64 now =3D mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
-		tm->tm_hour, tm->tm_min, tm->tm_sec);
-
-	ps3_os_area_set_rtc_diff(now - read_rtc());
-	return 0;
+	return read_rtc() + ps3_os_area_get_rtc_diff();
 }
=20
-void ps3_get_rtc_time(struct rtc_time *tm)
+static int __init ps3_rtc_init(void)
 {
-	to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
-	tm->tm_year -=3D 1900;
-	tm->tm_mon -=3D 1;
-}
+	struct platform_device *pdev;
=20
-unsigned long __init ps3_get_boot_time(void)
-{
-	return read_rtc() + ps3_os_area_get_rtc_diff();
+	pdev =3D platform_device_register_simple("rtc-ps3", -1, NULL, 0);
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	return 0;
 }
+
+module_init(ps3_rtc_init);
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 6488c50..7b6b63a 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -730,4 +730,13 @@ config RTC_DRV_MV
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-mv.
=20
+config RTC_DRV_PS3
+	tristate "PS3 RTC"
+	depends on PPC_PS3
+	help
+	  If you say yes here you will get support for the RTC on PS3.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-ps3.
+
 endif # RTC_CLASS
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index bd209a5..d161d1d 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -75,3 +75,4 @@ obj-$(CONFIG_RTC_DRV_VR41XX)	+=3D rtc-vr41xx.o
 obj-$(CONFIG_RTC_DRV_WM8350)	+=3D rtc-wm8350.o
 obj-$(CONFIG_RTC_DRV_X1205)	+=3D rtc-x1205.o
 obj-$(CONFIG_RTC_DRV_PCF50633)	+=3D rtc-pcf50633.o
+obj-$(CONFIG_RTC_DRV_PS3)	+=3D rtc-ps3.o
diff --git a/drivers/rtc/rtc-ps3.c b/drivers/rtc/rtc-ps3.c
new file mode 100644
index 0000000..968133c
--- /dev/null
+++ b/drivers/rtc/rtc-ps3.c
@@ -0,0 +1,104 @@
+/*
+ * PS3 RTC Driver
+ *
+ * Copyright 2009 Sony Corporation
+ *
+ * This program is free software; you can redistribute it and/or modif=
y
+ * it under the terms of the GNU General Public License as published b=
y
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.
+ * If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+
+#include <asm/lv1call.h>
+#include <asm/ps3.h>
+
+
+static u64 read_rtc(void)
+{
+	int result;
+	u64 rtc_val;
+	u64 tb_val;
+
+	result =3D lv1_get_rtc(&rtc_val, &tb_val);
+	BUG_ON(result);
+
+	return rtc_val;
+}
+
+static int ps3_get_time(struct device *dev, struct rtc_time *tm)
+{
+	rtc_time_to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
+	return rtc_valid_tm(tm);
+}
+
+static int ps3_set_time(struct device *dev, struct rtc_time *tm)
+{
+	unsigned long now;
+
+	rtc_tm_to_time(tm, &now);
+	ps3_os_area_set_rtc_diff(now - read_rtc());
+	return 0;
+}
+
+static const struct rtc_class_ops ps3_rtc_ops =3D {
+	.read_time =3D ps3_get_time,
+	.set_time =3D ps3_set_time,
+};
+
+static int __init ps3_rtc_probe(struct platform_device *dev)
+{
+	struct rtc_device *rtc;
+
+	rtc =3D rtc_device_register("rtc-ps3", &dev->dev, &ps3_rtc_ops,
+				  THIS_MODULE);
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
+
+	platform_set_drvdata(dev, rtc);
+	return 0;
+}
+
+static int __exit ps3_rtc_remove(struct platform_device *dev)
+{
+	rtc_device_unregister(platform_get_drvdata(dev));
+	return 0;
+}
+
+static struct platform_driver ps3_rtc_driver =3D {
+	.driver =3D {
+		.name =3D "rtc-ps3",
+		.owner =3D THIS_MODULE,
+	},
+	.remove =3D __exit_p(ps3_rtc_remove),
+};
+
+static int __init ps3_rtc_init(void)
+{
+	return platform_driver_probe(&ps3_rtc_driver, ps3_rtc_probe);
+}
+
+static void __exit ps3_rtc_fini(void)
+{
+	platform_driver_unregister(&ps3_rtc_driver);
+}
+
+module_init(ps3_rtc_init);
+module_exit(ps3_rtc_fini);
+
+MODULE_AUTHOR("Sony Corporation");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ps3 RTC driver");
+MODULE_ALIAS("platform:rtc-ps3");
--=20
1.6.0.4

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Bel=
gium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
Internet: http://www.sony-europe.com/

A division of Sony Europe (Belgium) N.V.
VAT BE 0413.825.160 =B7 RPR Brussels
=46ortis =B7 BIC GEBABEBB =B7 IBAN BE41293037680010
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Subject: Re: [PATCH 0/7] Generic RTC class driver
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Cc: Alessandro Zummo <alessandro.zummo@towertech.it>,
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On Mon, Mar 09, 2009 at 02:26:16PM +0100, Geert Uytterhoeven wrote:
> Paul: Feel free to add your SuperH support.
> 
> I suppose the easiest way for this to go in is through Kyle's PA-RISC tree, as
> he already has the preceding patches? Can I have your acks, please?
> 
I'll add the SH support once the patch set is merged, it's not a very
pressing matter, so no need to make the patch juggling any more
complicated :-)
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From - Thu Nov 08 21:03:46 2018
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Cc: linux-m68k@vger.kernel.org, rtc-linux@googlegroups.com,
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To: Alessandro Zummo <alessandro.zummo@towertech.it>
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Hi,

On 03/09/2009 07:12 AM, Alessandro Zummo wrote:
> On Mon,  9 Mar 2009 14:26:23 +0100
> Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:
>> +
>> +MODULE_AUTHOR("Sony Corporation");
> 
>  real name, if possible and a contact address
>  here . Just in case I need someone to bother :)

Please look at the MAINTAINERS file, that will give
the contact for PS3.  It is much easier to maintain
a single place for the contact than many spread
throughout the kernel sources.

-Geoff

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From: Alessandro Zummo <alessandro.zummo@towertech.it>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [rtc-linux] Re: [PATCH 7/7] powerpc/ps3: Add rtc-ps3
Date: Mon, 9 Mar 2009 19:43:07 +0100
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On Mon, 9 Mar 2009 11:04:17 -0700
Geoff Levand <geoffrey.levand@am.sony.com> wrote:

> 
> Hi,
> 
> On 03/09/2009 07:12 AM, Alessandro Zummo wrote:
> > On Mon,  9 Mar 2009 14:26:23 +0100
> > Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:
> >> +
> >> +MODULE_AUTHOR("Sony Corporation");
> > 
> >  real name, if possible and a contact address
> >  here . Just in case I need someone to bother :)
> 
> Please look at the MAINTAINERS file, that will give
> the contact for PS3.  It is much easier to maintain
> a single place for the contact than many spread
> throughout the kernel sources.

 Having it in MODULE_AUTHOR allow my scripts to automatically
 send an email when appropriate.

 MAINTAINERS lists the files with an arbitrary
 driver title so that the search must be made by an human and there's
 no field that links a person to a specific .c .

 so every time I want to address someone I need to check MODULE_AUTHOR,
 the git log and the MAINTAINERS file.

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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From - Thu Nov 08 21:03:46 2018
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From: Geoff Levand <geoffrey.levand@am.sony.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.m68k,gmane.linux.kernel
Subject: Re: [PATCH 7/7] powerpc/ps3: Add rtc-ps3
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Cc: Alessandro Zummo <alessandro.zummo@towertech.it>,
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To: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
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On 03/09/2009 06:26 AM, Geert Uytterhoeven wrote:
> Create a real RTC driver for PS3, and unhook the deprecated
> ppc_md.[gs]et_rtc_time.

>  8 files changed, 132 insertions(+), 18 deletions(-)

Sorry, I hadn't been following the discussion closely, but
could you explain why we are going from a generic framework
where we hook in our platform specific part to a totally
independent driver that has such an increase in code size.

Why couldn't you fix the generic part so that udev could
load it automatically?

I much prefer to have this code in the platform support
code as it was.  It is much more effort (a pain) to maintain
a separate driver were I have to cater to a subsystem's
maintainer, and with this rtc it seems everyone who was
using the generic PPC driver will need to do the same.

-Geoff

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From - Thu Nov 08 21:03:46 2018
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From: Geoff Levand <geoffrey.levand@am.sony.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [rtc-linux] Re: [PATCH 7/7] powerpc/ps3: Add rtc-ps3
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Hi,

On 03/09/2009 11:43 AM, Alessandro Zummo wrote:
> Geoff Levand <geoffrey.levand@am.sony.com> wrote:
>> On 03/09/2009 07:12 AM, Alessandro Zummo wrote:
>> > On Mon,  9 Mar 2009 14:26:23 +0100
>> > Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote:
>> >> +
>> >> +MODULE_AUTHOR("Sony Corporation");
>> > 
>> >  real name, if possible and a contact address
>> >  here . Just in case I need someone to bother :)
>> 
>> Please look at the MAINTAINERS file, that will give
>> the contact for PS3.  It is much easier to maintain
>> a single place for the contact than many spread
>> throughout the kernel sources.
> 
>  Having it in MODULE_AUTHOR allow my scripts to automatically
>  send an email when appropriate.
> 
>  MAINTAINERS lists the files with an arbitrary
>  driver title so that the search must be made by an human and there's
>  no field that links a person to a specific .c .
> 
>  so every time I want to address someone I need to check MODULE_AUTHOR,
>  the git log and the MAINTAINERS file.

I see.  It seems what you want is MODULE_MAINTAINER, as author is
the author, who after some time, may not be the maintainer any more.

There was some work by Joe Perches to list the files a maintainer is
responsible for into the MAINTAINERS file.  I think that would give
you what you want, a way to automatically get the maintainer of a
file.

Joe, could you let us know the status of that work?

-Geoff

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From - Thu Nov 08 21:03:46 2018
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From: Joe Perches <joe@perches.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.m68k,gmane.linux.kernel
Subject: Re: [rtc-linux] Re: [PATCH 7/7] powerpc/ps3: Add rtc-ps3
Date: Mon, 09 Mar 2009 12:18:42 -0700
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	 <1236605183-22718-6-git-send-email-Geert.Uytterhoeven@sonycom.com>
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Cc: Alessandro Zummo <alessandro.zummo@towertech.it>,
	rtc-linux@googlegroups.com, Geert.Uytterhoeven@sonycom.com,
	Kyle McMartin <kyle@mcmartin.ca>, linux-parisc@vger.kernel.org,
	linuxppc-dev@ozlabs.org, linux-m68k@vger.kernel.org,
	linux-kernel@vger.kernel.org, Paul Mundt <lethal@linux-sh.org>,
	Dann Frazier <dannf@dannf.org>,
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	Linus Torvalds <torvalds@linux-foundation.org>
To: Geoff Levand <geoffrey.levand@am.sony.com>
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On Mon, 2009-03-09 at 12:06 -0700, Geoff Levand wrote:
> There was some work by Joe Perches to list the files a maintainer is
> responsible for into the MAINTAINERS file.  I think that would give
> you what you want, a way to automatically get the maintainer of a
> file.
> 
> Joe, could you let us know the status of that work?

I think it works fine, and is an acceptable
approach to finding a maintainer for either a
patch or a specific file.

The changes I've posted are probably not suitable
for merging by anyone other than Linus as
MAINTAINERS is the most heavily modified file
in the kernel tree.

I've submitted it several times after merging it
with the latest kernel without response from Linus.

I'd merge and submit it again if it could be accepted.

If someone would propose a mechanism that would
improve the possibility to get it merged, I'd
also appreciate that.

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From - Thu Nov 08 21:03:47 2018
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From: Stoyan Gaydarov <stoyboyker@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 17/25] [parisc] BUG to BUG_ON changes
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Xref: news.gmane.org gmane.linux.ports.parisc:1371 gmane.linux.kernel:804588
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1371>

Signed-off-by: Stoyan Gaydarov <stoyboyker@gmail.com>
---
 arch/parisc/kernel/pci-dma.c |   12 ++++--------
 1 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index df47895..2587563 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -480,8 +480,7 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int n
 {
 	int i;
 
-	if (direction == DMA_NONE)
-	    BUG();
+	BUG_ON(direction == DMA_NONE);
 
 	for (i = 0; i < nents; i++, sglist++ ) {
 		unsigned long vaddr = sg_virt_addr(sglist);
@@ -496,8 +495,7 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, in
 {
 	int i;
 
-	if (direction == DMA_NONE)
-	    BUG();
+	BUG_ON(direction == DMA_NONE);
 
 	if (direction == DMA_TO_DEVICE)
 	    return;
@@ -511,16 +509,14 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, in
 
 static void pa11_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
 {
-	if (direction == DMA_NONE)
-	    BUG();
+	BUG_ON(direction == DMA_NONE);
 
 	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
 }
 
 static void pa11_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
 {
-	if (direction == DMA_NONE)
-	    BUG();
+	BUG_ON(direction == DMA_NONE);
 
 	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
 }
-- 
1.6.1.3

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From - Thu Nov 08 21:03:47 2018
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.m68k
Subject: Re: [PATCH 7/7] powerpc/ps3: Add rtc-ps3
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On Mon, 9 Mar 2009, Geoff Levand wrote:
> On 03/09/2009 06:26 AM, Geert Uytterhoeven wrote:
> > Create a real RTC driver for PS3, and unhook the deprecated
> > ppc_md.[gs]et_rtc_time.
>=20
> >  8 files changed, 132 insertions(+), 18 deletions(-)
>=20
> Sorry, I hadn't been following the discussion closely, but
> could you explain why we are going from a generic framework
> where we hook in our platform specific part to a totally
> independent driver that has such an increase in code size.

Alessandro prefers not to have generic RTC drivers on top of some other
abstraction, but wants platform/chip-specific drivers under drivers/rtc=
/
instead. The goal is to convert all RTC drivers buried in platform code
to separate RTC drivers.

(Alessandro, please correct me if I'm wrong)

> Why couldn't you fix the generic part so that udev could
> load it automatically?

BTW, I also fixed the generic part, which is now called rtc-generic and
autoloaded (patch 4).

> I much prefer to have this code in the platform support
> code as it was.  It is much more effort (a pain) to maintain
> a separate driver were I have to cater to a subsystem's
> maintainer, and with this rtc it seems everyone who was
> using the generic PPC driver will need to do the same.

They can keep on using rtc-generic for now (patch 6).

If you do not want rtc-ps3, you can nak it, and keep on using rtc-gener=
ic :-)
But please consider before doing that...

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Bel=
gium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
Internet: http://www.sony-europe.com/

A division of Sony Europe (Belgium) N.V.
VAT BE 0413.825.160 =B7 RPR Brussels
=46ortis =B7 BIC GEBABEBB =B7 IBAN BE41293037680010

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On 03/09/2009 06:26 AM, Geert Uytterhoeven wrote:
> Create a real RTC driver for PS3, and unhook the deprecated
> ppc_md.[gs]et_rtc_time.
> 
> Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
> Cc: Geoff Levand <geoffrey.levand@am.sony.com>
> ---
>  arch/powerpc/include/asm/ps3.h        |    3 +
>  arch/powerpc/platforms/ps3/os-area.c  |    2 +
>  arch/powerpc/platforms/ps3/platform.h |    2 -
>  arch/powerpc/platforms/ps3/setup.c    |    2 -
>  arch/powerpc/platforms/ps3/time.c     |   26 ++++-----
>  drivers/rtc/Kconfig                   |    9 +++
>  drivers/rtc/Makefile                  |    1 +
>  drivers/rtc/rtc-ps3.c                 |  105 +++++++++++++++++++++++++++++++++
>  8 files changed, 132 insertions(+), 18 deletions(-)
>  create mode 100644 drivers/rtc/rtc-ps3.c

Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>

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From - Thu Nov 08 21:03:47 2018
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Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>,
	linux-m68k@vger.kernel.org,
	Alessandro Zummo <alessandro.zummo@towertech.it>,
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To: David Woodhouse <dwmw2@infradead.org>
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On Mon, 2009-03-09 at 13:59 +0000, David Woodhouse wrote:
> On Mon, 2009-03-09 at 14:26 +0100, Geert Uytterhoeven wrote:
> > PowerPC has been a long time user of the generic RTC abstraction, so hook up
> > rtc-generic:
> >   - Create the "rtc-generic" platform device if ppc_md.get_rtc_time is set,
> >   - Kill rtc-ppc, as rtc-generic offers the same functionality in a more
> >     generic way, and supports autoloading through udev.
> > 
> > Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
> 
> Acked-By: David Woodhouse <David.Woodhouse@intel.com>

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>


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Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
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Cc: Alessandro Zummo <alessandro.zummo@towertech.it>,
	linux-m68k@vger.kernel.org, rtc-linux@googlegroups.com,
	linux-parisc@vger.kernel.org,
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To: Kyle McMartin <kyle@mcmartin.ca>
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	Hi Kyle,

On Mon, 9 Mar 2009, Geert Uytterhoeven wrote:
> These patches are relative to the "rtc-parisc" branch of Kyle's PA-RI=
SC git
> repository, which already contains some cleanups for the rtc-parisc d=
river by
> Dann, which already have been ack'ed by Alessandro:
>=20
> http://git.kernel.org/?p=3Dlinux/kernel/git/kyle/parisc-2.6.git;a=3Ds=
hortlog;h=3Drtc-parisc
>=20
> Paul: Feel free to add your SuperH support.
>=20
> I suppose the easiest way for this to go in is through Kyle's PA-RISC=
 tree, as
> he already has the preceding patches? Can I have your acks, please?

Is it OK for you to take it through your PA-RISC tree?
If yes, I can resend the patch series with the collected acks.

Thanks!

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =C2=B7 Da Vincilaan 7-D1 =C2=B7 B-1935 Zaventem =C2=
=B7 Belgium

Phone:    +32 (0)2 700 8453
=46ax:      +32 (0)2 700 8622
E-mail:   Geert.Uytterhoeven@sonycom.com
Internet: http://www.sony-europe.com/

A division of Sony Europe (Belgium) N.V.
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To: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
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On Wed, Mar 11, 2009 at 11:36:02AM +0100, Geert Uytterhoeven wrote:
> Is it OK for you to take it through your PA-RISC tree?
> If yes, I can resend the patch series with the collected acks.
> 

That's fine with me, just hit me up with a git tree address and I'll
suck it all into the rtc-parisc tree?

regards, Kyle
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 0/7] Generic RTC class driver
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Cc: Kyle McMartin <kyle@mcmartin.ca>,
	Alessandro Zummo <alessandro.zummo@towertech.it>,
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To: Kyle McMartin <kyle@infradead.org>
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	Hi Kyle,

On Wed, 11 Mar 2009, Kyle McMartin wrote:
> On Wed, Mar 11, 2009 at 11:36:02AM +0100, Geert Uytterhoeven wrote:
> > Is it OK for you to take it through your PA-RISC tree?
> > If yes, I can resend the patch series with the collected acks.
>=20
> That's fine with me, just hit me up with a git tree address and I'll
> suck it all into the rtc-parisc tree?

I put it up at:

master.kernel.org:/pub/scm/linux/kernel/git/geert/linux-rtc-generic.git

The master branch should be a descendant of your rtc-parisc branch.

Thanks!

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Bel=
gium

Phone:    +32 (0)2 700 8453
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From - Thu Nov 08 21:03:47 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 0/7] Generic RTC class driver
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Cc: Kyle McMartin <kyle@infradead.org>,
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To: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
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On Wed, Mar 11, 2009 at 06:26:12PM +0100, Geert Uytterhoeven wrote:
> 	Hi Kyle,
> 
> On Wed, 11 Mar 2009, Kyle McMartin wrote:
> > On Wed, Mar 11, 2009 at 11:36:02AM +0100, Geert Uytterhoeven wrote:
> > > Is it OK for you to take it through your PA-RISC tree?
> > > If yes, I can resend the patch series with the collected acks.
> > 
> > That's fine with me, just hit me up with a git tree address and I'll
> > suck it all into the rtc-parisc tree?
> 
> I put it up at:
> 
> master.kernel.org:/pub/scm/linux/kernel/git/geert/linux-rtc-generic.git
> 
> The master branch should be a descendant of your rtc-parisc branch.
> 
> Thanks!
>

Great, thanks Geert!

I've pulled it and pushed it back out, I'll submit it when the merge
window opens.

cheers, Kyle
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Cc: linux-kernel@vger.kernel.org, kyle@mcmartin.ca, matthew@wil.cx,
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To: Stoyan Gaydarov <stoyboyker@gmail.com>
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On Tue, Mar 10, 2009 at 12:10:42AM -0500, Stoyan Gaydarov wrote:
> Signed-off-by: Stoyan Gaydarov <stoyboyker@gmail.com>
>

Hi Stoyan,

Thanks for sending this, but Helge Deller has already submitted
a similar patch queued for 2.6.30.

Thanks,
	Kyle
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On Mon, Feb 02, 2009 at 12:24:01AM +0100, Helge Deller wrote:
> The parisc64 target (HP PARISC, 64bit kernel) is similar to the sparc64 or 
> m68knommu targets, as it shares all sources for 32- and 64-bit in one single
> source path which is arch/parisc/.
> This patch now allows one to use ARCH=parisc64 and just directly build the
> 64bit kernel without creating symlinks in arch/ and include/asm-* manually
> the same way as it's done for sparc64 and m68knommu.
> 

I'm going to drop this patch, powerpc and mips don't do it, and
'parisc64' hasn't been valid as $ARCH since v2.3 or something equally
ancient, so I can't see any point in it.

regards, Kyle
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Hi Linus,

This is entirely build warning cleanups, and fixups from my 2.6.30 tree
that would be nice to see in .29, but no big deal if you think it's
inappropriate at this point, I just hadn't had time to split these
apart any earlier.

regards, Kyle

The following changes since commit 041b62374c7fedc11a8a1eeda2868612d3d1436c:

  Linus Torvalds (1):
        Linus 2.6.29-rc8

are available in the git repository at:

  /pub/scm/linux/kernel/git/kyle/parisc-2.6.29.git master

Grant Grundler (2):
      parisc: fix wrong assumption about bus->self
      parisc: update MAINTAINERS

Helge Deller (7):
      parisc: BUG_ON() cleanup
      parisc: fix section mismatch warnings
      parisc: fix `struct pt_regs' declared inside parameter list warning
      parisc: remove unused local out_putf label
      parisc: fix dev_printk() compile warnings for accessing a device struct
      parisc: add braces around arguments in assembler macros
      parisc: fix 64bit build

James Bottomley (1):
      parisc: remove klist iterators

Kay Sievers (1):
      parisc: dino: struct device - replace bus_id with dev_name(), dev_set_name()

Kyle McMartin (5):
      parisc: fix use of new cpumask api in irq.c
      parisc: convert (read|write)bwlq to inlines
      parisc: convert cpu_check_affinity to new cpumask api
      parisc: define x->x mmio accessors
      parisc: update defconfigs

Mike Travis (1):
      parisc: update parisc for new irq_desc

 MAINTAINERS                           |    6 +-
 arch/parisc/configs/712_defconfig     |  429 ++++++++++++++++---------
 arch/parisc/configs/a500_defconfig    |  490 +++++++++++++++++++---------
 arch/parisc/configs/b180_defconfig    |  433 ++++++++++++++++--------
 arch/parisc/configs/c3000_defconfig   |  575 +++++++++++++++++++++-----------
 arch/parisc/configs/default_defconfig |  585 ++++++++++++++++++++++-----------
 arch/parisc/hpux/fs.c                 |    1 -
 arch/parisc/include/asm/assembly.h    |   11 +-
 arch/parisc/include/asm/io.h          |   51 +++-
 arch/parisc/include/asm/irq.h         |    2 +-
 arch/parisc/include/asm/uaccess.h     |    1 +
 arch/parisc/kernel/cache.c            |    5 +-
 arch/parisc/kernel/entry.S            |    6 +-
 arch/parisc/kernel/firmware.c         |   12 +-
 arch/parisc/kernel/irq.c              |   18 +-
 arch/parisc/kernel/pci-dma.c          |   22 +-
 arch/parisc/mm/init.c                 |    6 +-
 drivers/char/agp/parisc-agp.c         |   23 +-
 drivers/parisc/dino.c                 |   13 +-
 drivers/parisc/gsc.c                  |   39 ++-
 drivers/parisc/iosapic.c              |   16 +-
 drivers/parisc/lba_pci.c              |    4 +-
 drivers/parisc/sba_iommu.c            |   61 ++--
 drivers/scsi/lasi700.c                |    2 +-
 drivers/scsi/zalon.c                  |    2 +-
 25 files changed, 1849 insertions(+), 964 deletions(-)
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Subject: Re: [PATCH] parisc: define SRCARCH=parisc for parisc64 builds
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Kyle McMartin wrote:
> On Mon, Feb 02, 2009 at 12:24:01AM +0100, Helge Deller wrote:
>> The parisc64 target (HP PARISC, 64bit kernel) is similar to the spar=
c64 or=20
>> m68knommu targets, as it shares all sources for 32- and 64-bit in on=
e single
>> source path which is arch/parisc/.
>> This patch now allows one to use ARCH=3Dparisc64 and just directly b=
uild the
>> 64bit kernel without creating symlinks in arch/ and include/asm-* ma=
nually
>> the same way as it's done for sparc64 and m68knommu.
>>
>=20
> I'm going to drop this patch, powerpc and mips don't do it,=20

they maybe don't need it ?

> and 'parisc64' hasn't been valid as $ARCH since v2.3 or something equ=
ally
> ancient, so I can't see any point in it.

=C4h ?
And how do you build a 64bit parisc kernel then ?

Helge
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On Sat, Mar 14, 2009 at 09:47:06PM +0100, Helge Deller wrote:
> > and 'parisc64' hasn't been valid as $ARCH since v2.3 or something e=
qually
> > ancient, so I can't see any point in it.
>=20
> =C4h ?
> And how do you build a 64bit parisc kernel then ?
>=20

CONFIG_64BIT.
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Kyle McMartin wrote:
> On Sat, Mar 14, 2009 at 09:47:06PM +0100, Helge Deller wrote:
>>> and 'parisc64' hasn't been valid as $ARCH since v2.3 or something e=
qually
>>> ancient, so I can't see any point in it.
>> =C4h ?
>> And how do you build a 64bit parisc kernel then ?
>>
>=20
> CONFIG_64BIT

No, this does not work with a cleanly checked-out tree.
Just remove the arch/parisc64 link which you created manually.

Helge
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From - Thu Nov 08 21:03:48 2018
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On Sat, Mar 14, 2009 at 09:56:16PM +0100, Helge Deller wrote:
> Kyle McMartin wrote:
> > On Sat, Mar 14, 2009 at 09:47:06PM +0100, Helge Deller wrote:
> >>> and 'parisc64' hasn't been valid as $ARCH since v2.3 or something=
 equally
> >>> ancient, so I can't see any point in it.
> >> =C4h ?
> >> And how do you build a 64bit parisc kernel then ?
> >>
> >=20
> > CONFIG_64BIT
>=20
> No, this does not work with a cleanly checked-out tree.
> Just remove the arch/parisc64 link which you created manually.
>=20

It's simple, set CONFIG_64BIT, and just call it 'parisc' like
everyone else has done for years now.

regards, Kyle
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Kyle McMartin wrote:
> On Sat, Mar 14, 2009 at 09:56:16PM +0100, Helge Deller wrote:
>> Kyle McMartin wrote:
>>> On Sat, Mar 14, 2009 at 09:47:06PM +0100, Helge Deller wrote:
>>>>> and 'parisc64' hasn't been valid as $ARCH since v2.3 or something=
 equally
>>>>> ancient, so I can't see any point in it.
>>>> =C4h ?
>>>> And how do you build a 64bit parisc kernel then ?
>>>>
>>> CONFIG_64BIT
>> No, this does not work with a cleanly checked-out tree.
>> Just remove the arch/parisc64 link which you created manually.
>>
>=20
> It's simple, set CONFIG_64BIT, and just call it 'parisc' like
> everyone else has done for years now.

Everyone besides me it seems :-)

Shame on me ... seems you are right.
sorry.

Helge
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: [PATCH] parisc: define SRCARCH=parisc for parisc64 builds
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On Sat, Mar 14, 2009 at 10:25:36PM +0100, Helge Deller wrote:
> 
> Everyone besides me it seems :-)
> 
> Shame on me ... seems you are right.
> sorry.
> 

heh, dude, not your fault. I guess you've just been at this
a lot longer than I have. :)
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: [PATCH] parisc: define SRCARCH=parisc for parisc64 builds
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On Sat, Mar 14, 2009 at 10:25:36PM +0100, Helge Deller wrote:
> 
> Everyone besides me it seems :-)
> 
> Shame on me ... seems you are right.
> sorry.
> 

on second thought, if it makes your life measurably easier, i rescind
my nak and will merge the patch.

let me know,
	kyle
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Subject: [PATCH] parisc: sba_iommu: fix build bug when CONFIG_PARISC_AGP=y
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From: Kyle McMartin <kyle@mcmartin.ca>

  CC      drivers/parisc/sba_iommu.o
drivers/parisc/sba_iommu.c:1373: error: expected identifier or '('
before '}' token
make[2]: *** [drivers/parisc/sba_iommu.o] Error 1
make[1]: *** [drivers/parisc] Error 2
make: *** [drivers] Error 2

Don't know how this has gone missed for so long... clearly I need
to do builds on my C8000 more often.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
---
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 6aad854..e5999c4 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1367,9 +1367,7 @@ sba_ioc_init_pluto(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
 		ioc->pdir_size /= 2;
 		ioc->pdir_base[PDIR_INDEX(iova_space_size/2)] = SBA_AGPGART_COOKIE;
 	}
-}
 #endif /*SBA_AGP_SUPPORT*/

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From: Matt Turner <mattst88@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Possible accelerated X on PA-RISC with kernel modesetting -- anyone 
	investigating?
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Hi,

It hasn't been possible to use X on PA-RISC without unaccelerated
fbdev to my knowledge.

Evidently [*], there is a possibility of this changing relatively soon
via Radeon kernel modesetting.

Is anyone aware of this development? Is anyone interested in
accelerated X on PA-RISC? Is anyone investigating what it will take to
support PA-RISC?

R500 and R600 Radeon PCI cards are cheap, and will be supported. I
guess the C8000 has larger performance problems to worry about, but
the AGP slot it offers would open up the selection of graphics cards
to include much faster R600-series cards, and future cards if they
ever produce more AGP compatible ones.

I'd sure be nice to put an X1550 or 2400HD in my J6700 and have an
accelerated desktop.

Thanks,

Matt Turner

* http://lists.freedesktop.org/archives/xorg/2008-July/037059.html
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Apologies for the wordiness of this mail, it's been a struggle to
remember some of the details, and I haven't really thought about this
since 2006 or early 2007. Also, apologies in advance for any incorrect
facts here, this stuff isn't very well documented and I've never worked
for HP so I don't have access to the confidential docs.

The short answer is, I don't think this will really work, but I don't
mean to phrase this in such a way to discourage anyone from trying.

On Sat, Mar 14, 2009 at 09:02:45PM -0400, Matt Turner wrote:
> Hi,
> 
> It hasn't been possible to use X on PA-RISC without unaccelerated
> fbdev to my knowledge.
> 
> Evidently [*], there is a possibility of this changing relatively soon
> via Radeon kernel modesetting.
> 
> Is anyone aware of this development? Is anyone interested in
> accelerated X on PA-RISC? Is anyone investigating what it will take to
> support PA-RISC?
> 
> R500 and R600 Radeon PCI cards are cheap, and will be supported. I
> guess the C8000 has larger performance problems to worry about, but
> the AGP slot it offers would open up the selection of graphics cards
> to include much faster R600-series cards, and future cards if they
> ever produce more AGP compatible ones.
> 
> I'd sure be nice to put an X1550 or 2400HD in my J6700 and have an
> accelerated desktop.
> 

[[ Glossary:
- rope: the thing which connects the IO controller (Astro) and the 
  IO adapter (Elroy), an elroy has a pci bus behind it.
  An elroy can be single roped, or double roped, which distributes
  an address range to the PCI bus behind the elroy. There's 8 ropes to
  an Astro/Pluto, they may not all point somewhere.
- LMMIO: less-than-4GB mmio (the limited (256MB - 16MB (iirc)) 32-bit
  IO space.
- GMMIO: greather-than-4GB mmio
- DAC: double address cycle, 64-bit pci BARs
- distributed range: a $n-MB IO-space divided evenly across all ropes
- directed range: limited $n-MB (0, or 8 to 64MB) directed at a single
  rope.]]

The problem with basically every modern graphics card is mapping the
framebuffer. PDC will give the finger to anything with a framebuffer
bar bigger than 128M (maybe even 128M on some models) and we don't have
anything near the infrastructure right now to reprogram the elroy and
astro range registers to route pci devices.

Ontop of that, it's actually extremely difficult to map 256MB
framebuffers with elroy because of the way distributed and directed
ranges work. I can't remember all the details, because of how long
it's been, but I believe:

LMMIO directed ranges (of which there are 3) are maximum 64MB in size,
which means we can map only 64MB*3 to one card, max, plus however
much distributed range (up to 64MB each rope) is allocated to that rope.

The basic means that each PCI bus behind an elroy gets at most 64MB,
plus up to 192MB of directed MMIO.

I don't know if the newer cards can do DAC, but if they can, then we
could at least use the distributed GMMIO (greater-than-4GB mmio)
range to map a wide swath to every rope, which /would/ work.

(My C8000 won't boot with a PCI r500 card in it, it fails during PDC
 init, sadly. I think it was a X1300 or something.)

I cannot off-hand recall the address map on Astro, but I believe
you have 3.75GB of memory, 16MB of PDC space, and 240MB of IO-space for
all cards. Because of the need for a distributed range (otherwise you
don't have enough directed ranges for all the ropes.) of at least 8MB
in size (so 1MB per rope), you only have 232MB of space left.

The reason for all of this is because Astro workstations are
fundamentally still 32-bit, so you want to maximize the amount of useful
RAM they had below 4GB.

On Pluto (aka: C8000) the zx1 address map gives us a full GB or two
of less than 32-bit address space, since all zx1 machines are proper
64-bit machines and can address RAM above 4GB.

On something like a J6000 you have 3 pci slots each behind their own
elroy, and thus, their own rope.

... Hmm, I should probably write this all up on the wiki or something.

I have (some) code that's capable of dropping all the ranges on my
C3000, and then reprogramming it in a somewhat more optimal way, but
I don't know where it's gone in the intervening 3 years or so. :/

Feel free to hit me up if you have any other questions. I'd appreciate
it if any current or former HP folks could correct anything I'd said
here that might be incorrect, since the public documentation is fairly
non-existant I've had to try to fill in the blanks where I can.

Thanks for listening, Kyle
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From - Thu Nov 08 21:03:48 2018
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From: Kyle McMartin <kyle@infradead.org>
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Subject: Re: Possible accelerated X on PA-RISC with kernel modesetting --
	anyone investigating?
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On Sat, Mar 14, 2009 at 09:46:21PM -0400, Kyle McMartin wrote:
> I don't know if the newer cards can do DAC, but if they can, then we
> could at least use the distributed GMMIO (greater-than-4GB mmio)
> range to map a wide swath to every rope, which /would/ work.
> 
> (My C8000 won't boot with a PCI r500 card in it, it fails during PDC
>  init, sadly. I think it was a X1300 or something.)
> 

Ah, more stuff I remembered. Pluto's GMMIO_DIST_BASE register has useful
features that let it clip the top 32-bits of the transaction address
off, so you can give each rope a full 4GB mmio space and a bit to turn
off the port-IO space from each range, reclaiming another 64MB for each
rope.

I should pick up another couple models of PCI r[56]00 to try in the
C8000... not sure why the firmware choked on the old r500.
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Subject: Re: [PATCH] parisc: define SRCARCH=parisc for parisc64 builds
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Kyle McMartin wrote:
> On Sat, Mar 14, 2009 at 10:25:36PM +0100, Helge Deller wrote:
>> Everyone besides me it seems :-)
>>
>> Shame on me ... seems you are right.
>> sorry.
>>
> 
> on second thought, if it makes your life measurably easier, i rescind
> my nak and will merge the patch.
> 
> let me know,
> 	kyle

Thanks for the offer, Kyle.
But I think I can easily change my scripts, so it's not necessary.

Helge

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From - Thu Nov 08 21:03:48 2018
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From: Rusty Russell <rusty@rustcorp.com.au>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PULL] cpumask updates for parisc
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The following changes since commit 5bee17f18b595937e6beafeee5197868a3f74a06:
  Kyle McMartin (1):
        parisc: sba_iommu: fix build bug when CONFIG_PARISC_AGP=y

are available in the git repository at:

  ssh://master.kernel.org/home/ftp/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask-for-parisc.git master

Rusty Russell (3):
      cpumask: arch_send_call_function_ipi_mask: parisc
      cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: parisc
      cpumask: Use accessors code.: parisc

 arch/parisc/include/asm/smp.h  |    3 ++-
 arch/parisc/kernel/irq.c       |    4 ++--
 arch/parisc/kernel/processor.c |    6 +++---
 arch/parisc/kernel/smp.c       |   18 +++++++++---------
 4 files changed, 16 insertions(+), 15 deletions(-)

commit 9bc181d8d7cb6462de0c315e364780ad275f7c57
Author: Rusty Russell <rusty@rustcorp.com.au>
Date:   Mon Mar 16 14:19:38 2009 +1030

    cpumask: Use accessors code.: parisc
    
    Impact: use new API
    
    Use the accessors rather than frobbing bits directly.  Most of this is
    in arch code I haven't even compiled, but it is mostly straightforward.
    
    Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
    Signed-off-by: Mike Travis <travis@sgi.com>

diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 44a1a50..bdbabfb 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -214,7 +214,7 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 	 */
 #ifdef CONFIG_SMP
 	if (cpuid) {
-		cpu_set(cpuid, cpu_present_map);
+		set_cpu_present(cpuid, true);
 		cpu_up(cpuid);
 	}
 #endif
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index ba9b680..8691979 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -113,7 +113,7 @@ halt_processor(void)
 {
 	/* REVISIT : redirect I/O Interrupts to another CPU? */
 	/* REVISIT : does PM *know* this CPU isn't available? */
-	cpu_clear(smp_processor_id(), cpu_online_map);
+	set_cpu_online(smp_processor_id(), false);
 	local_irq_disable();
 	for (;;)
 		;
@@ -296,13 +296,14 @@ smp_cpu_init(int cpunum)
 	mb();
 
 	/* Well, support 2.4 linux scheme as well. */
-	if (cpu_test_and_set(cpunum, cpu_online_map))
+	if (cpu_isset(cpunum, cpu_online_map))
 	{
 		extern void machine_halt(void); /* arch/parisc.../process.c */
 
 		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
 		machine_halt();
 	}  
+	set_cpu_online(cpunum, true);
 
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);
@@ -424,8 +425,8 @@ void __init smp_prepare_boot_cpu(void)
 	/* Setup BSP mappings */
 	printk(KERN_INFO "SMP: bootstrap CPU ID is %d\n", bootstrap_processor);
 
-	cpu_set(bootstrap_processor, cpu_online_map);
-	cpu_set(bootstrap_processor, cpu_present_map);
+	set_cpu_online(bootstrap_processor, true);
+	set_cpu_present(bootstrap_processor, true);
 }
 
 
@@ -436,8 +437,7 @@ void __init smp_prepare_boot_cpu(void)
 */
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
-	cpus_clear(cpu_present_map);
-	cpu_set(0, cpu_present_map);
+	init_cpu_present(cpumask_of(0));
 
 	parisc_max_cpus = max_cpus;
 	if (!max_cpus)

commit bd071e1a371d31db243edc4714ff9e8d1ea1309e
Author: Rusty Russell <rusty@rustcorp.com.au>
Date:   Mon Mar 16 14:19:37 2009 +1030

    cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: parisc
    
    Impact: cleanup, futureproof
    
    In fact, all cpumask ops will only be valid (in general) for bit
    numbers < nr_cpu_ids.  So use that instead of NR_CPUS in various
    places.
    
    This is always safe: no cpu number can be >= nr_cpu_ids, and
    nr_cpu_ids is initialized to NR_CPUS at boot.
    
    Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
    Signed-off-by: Mike Travis <travis@sgi.com>
    Acked-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 29e70e1..103752a 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -311,12 +311,12 @@ unsigned long txn_alloc_addr(unsigned int virt_irq)
 	next_cpu++; /* assign to "next" CPU we want this bugger on */
 
 	/* validate entry */
-	while ((next_cpu < NR_CPUS) &&
+	while ((next_cpu < nr_cpu_ids) &&
 		(!per_cpu(cpu_data, next_cpu).txn_addr ||
 		 !cpu_online(next_cpu)))
 		next_cpu++;
 
-	if (next_cpu >= NR_CPUS) 
+	if (next_cpu >= nr_cpu_ids) 
 		next_cpu = 0;	/* nothing else, assign monarch */
 
 	return txn_affinity_addr(virt_irq, next_cpu);
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index ecb6093..44a1a50 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -100,8 +100,8 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 	struct cpuinfo_parisc *p;
 
 #ifdef CONFIG_SMP
-	if (num_online_cpus() >= NR_CPUS) {
-		printk(KERN_INFO "num_online_cpus() >= NR_CPUS\n");
+	if (num_online_cpus() >= nr_cpu_ids) {
+		printk(KERN_INFO "num_online_cpus() >= nr_cpu_ids\n");
 		return 1;
 	}
 #else

commit 91887a362984324e254473e92820758c8e658f78
Author: Rusty Russell <rusty@rustcorp.com.au>
Date:   Mon Mar 16 14:19:37 2009 +1030

    cpumask: arch_send_call_function_ipi_mask: parisc
    
    We're weaning the core code off handing cpumask's around on-stack.
    This introduces arch_send_call_function_ipi_mask(), and by defining
    it, the old arch_send_call_function_ipi is defined by the core code.
    
    We also take the chance to change send_IPI_mask() and use the new
    for_each_cpu() iterator.
    
    Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/arch/parisc/include/asm/smp.h b/arch/parisc/include/asm/smp.h
index 6ef4b78..21eb45a 100644
--- a/arch/parisc/include/asm/smp.h
+++ b/arch/parisc/include/asm/smp.h
@@ -29,7 +29,8 @@ extern void smp_send_reschedule(int cpu);
 extern void smp_send_all_nop(void);
 
 extern void arch_send_call_function_single_ipi(int cpu);
-extern void arch_send_call_function_ipi(cpumask_t mask);
+extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
+#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask
 
 #endif /* !ASSEMBLY */
 
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 9995d7e..ba9b680 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -214,11 +214,11 @@ ipi_send(int cpu, enum ipi_message_type op)
 }
 
 static void
-send_IPI_mask(cpumask_t mask, enum ipi_message_type op)
+send_IPI_mask(const struct cpumask *mask, enum ipi_message_type op)
 {
 	int cpu;
 
-	for_each_cpu_mask(cpu, mask)
+	for_each_cpu(cpu, mask)
 		ipi_send(cpu, op);
 }
 
@@ -257,7 +257,7 @@ smp_send_all_nop(void)
 	send_IPI_allbutself(IPI_NOP);
 }
 
-void arch_send_call_function_ipi(cpumask_t mask)
+void arch_send_call_function_ipi_mask(const struct cpumask *mask)
 {
 	send_IPI_mask(mask, IPI_CALL_FUNC);
 }


From - Thu Nov 08 21:03:48 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 4/7] parisc: rtc: Rename rtc-parisc to rtc-generic
Date: Mon, 16 Mar 2009 14:09:16 +0100
Lines: 12
Approved: news@gmane.org
Message-ID: <20090316130916.GA3324@lst.de>
References: <1236605183-22718-1-git-send-email-Geert.Uytterhoeven@sonycom.com> <1236605183-22718-2-git-send-email-Geert.Uytterhoeven@sonycom.com> <1236605183-22718-3-git-send-email-Geert.Uytterhoeven@sonycom.com> <1236605183-22718-4-git-send-email-Geert.Uytterhoeven@sonycom.com> <1236605183-22718-5-git-send-email-Geert.Uytterhoeven@sonycom.com>
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Cc: Alessandro Zummo <alessandro.zummo@towertech.it>,
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	rtc-linux@googlegroups.com, linux-parisc@vger.kernel.org,
	linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
	Paul Mundt <lethal@linux-sh.org>,
	Dann Frazier <dannf@dannf.org>
To: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
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On Mon, Mar 09, 2009 at 02:26:20PM +0100, Geert Uytterhoeven wrote:
> The rtc-parisc driver is not PA-RISC specific at all, as it uses the existing
> (but deprecated) generic RTC infrastructure ([gs]et_rtc_time()).
> Rename the driver from rtc-parisc to rtc-generic.

Maybe it should be called rtc-legacy instead?

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From - Thu Nov 08 21:03:49 2018
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X-Mozilla-Keys:                                                                                 
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PULL] cpumask updates for parisc
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Cc: Helge Deller <deller@gmx.de>, Kyle McMartin <kyle@mcmartin.ca>,
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To: Rusty Russell <rusty@rustcorp.com.au>
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On Mon, Mar 16, 2009 at 02:44:35PM +1030, Rusty Russell wrote:
> The following changes since commit 5bee17f18b595937e6beafeee5197868a3f74a06:
>   Kyle McMartin (1):
>         parisc: sba_iommu: fix build bug when CONFIG_PARISC_AGP=y
> 
> are available in the git repository at:
> 
>   ssh://master.kernel.org/home/ftp/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask-for-parisc.git master
> 
> Rusty Russell (3):
>       cpumask: arch_send_call_function_ipi_mask: parisc
>       cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: parisc
>       cpumask: Use accessors code.: parisc
> 
>  arch/parisc/include/asm/smp.h  |    3 ++-
>  arch/parisc/kernel/irq.c       |    4 ++--
>  arch/parisc/kernel/processor.c |    6 +++---
>  arch/parisc/kernel/smp.c       |   18 +++++++++---------
>  4 files changed, 16 insertions(+), 15 deletions(-)
> 

I've pulled these into a test branch, and will let you know if my
autobuilder shakes out any issues with them.

cheers, Kyle

From - Thu Nov 08 21:03:49 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: hpmc on rp3440 with 2.6.29-rc5
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Below is some info that I collected from a HPMC that occurred running the GCC
testsuite.  I believe this kernel was built with the master branch from
Kyle's parisc-2.6.git tree.

In the info below, I only included relevant data.  No hpmc data was
recorded for processors 2 and 3.  Unfortunately, I lost the console output
for the crash if any.

This is with a SMP 64-bit kernel.  I still have it and the config file.

I'm not the greatest at interpreting chassis codes.  It's not at all clear
to me what went wrong.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

-----------------  Processor 0 HPMC Information - PDC Version: 45.11  ------ 

Timestamp =   Sun Mar  8 06:02:27 GMT 2009    (20:09:03:08:06:02:27)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0xe800035c00e00000 0x00000000402492cb
       0x57000f7300e00000 0x8400000000800000
       0xf600105e00e00000 0xfffffff0f0c00000
       0x140003b200e00000 0x000000000000000b
       0x5600100b00e00000 0x0000000000000194
       0x5600106400e00000 0xfffffff0f0435110


General Registers 0 - 31
00-03  0000000000000000  ac63183b0015d351  0000000040249367  0000000000000001
04-07  00000000402606e0  0000000040000fec  0000000000000003  0000000000000000
08-11  00000008ac63183b  0000000040260ee0  000000004025e378  000000000000001b
12-15  00000000056318c1  00000000402606e0  0000000040260ee0  00000000405cdd78
16-19  00000000405cea24  00000000fb3cc108  00000000fb3cc008  00000000402606e0
20-23  00000000405d3d14  0000000000000000  00000000405dc624  00000000405d3d14
24-27  00000000fb3cc008  00000000405dc572  00000000405dc572  0000000000040148
28-31  00000000405d3d14  00000000fb3cc108  00000000fb3cc1c0  000000004024930b

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000027468  0000000000000000  00000000000000c0  000000000000000c
12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
16-19  0001fce881fd5ff0  0000000009d1a000  00000000402492cb  000000000e98101c
20-23  0000000000000000  0000000000000000  000000ff0006ff0f  0000000000000000
24-27  0000000000524000  00000001fa61e000  ffffffffffffffff  00000000400017e0
28-31  0000000040001460  ffffffffffffffff  00000002bf838000  0000000040554000

Space Registers 0 - 7
00-03  0000000009d1a000  0000000009d1a000  0000000000000000  0000000009d1a000
04-07  0000000009d1a000  0000000009d1a000  0000000009d1a000  0000000009d1a000


IIA Space (back entry)       = 0x0000000009d1a000
IIA Offset (back entry)      = 0x00000000402492cf
Check Type                   = 0x00000000
Cpu State                    = 0x9e000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x09d1a000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  ffffffffffffff9c  bff0000000000000
08-11  0000000000000000  00000000405ca240  0000000000000802  000000004060a000
12-15  00000001401cbe4c  00000000405ca240  0000000000000000  00000000000000d0
16-19  000000007f45afb0  000000007f410ac0  000000007f54c000  000000007f54c000
20-23  00000000405ca240  00000000404bd1e0  000088e800004474  0000cd5c00000000
24-27  0000000000000000  00000000405ca240  00000000405ca240  0000000000000000
28-31  0000000000000803  0000000000000000  00000000405ca240  0000000000000803

PIM Revision                 = 0x0000000000000001                
CPU ID                       = 0x0000000000000014
CPU Revision                 = 0x0000000000000031
Cpu Serial Number            = 0x46100b89e43f0503
Check Summary                = 0x8400000000800000
SAL Timestamp                = 0x0000000049b35f73
System Firmware Rev.         = 0x00000b4b0000119f
PDC Relocation Address       = 0xfffffff0f0c00000
Available Memory             = 0x000000027fe00000
CPU Diagnose Register 2      = 0x3112022000002008
MIB_STAT                     = 0x0000000000000000
MIB_LOG1                     = 0x0000000000555500
MIB_LOG2                     = 0x0000800000000000
MIB_ECC_DATA                 = 0x73c33e4173c43e11
ICache Info                  = 0x0000000000000000
DCache Info                  = 0x0000000000000000
Sharedcache Info1            = 0x0800000000440000
Sharedcache Info2            = 0x00000000000000c0
MIB_RSLOG1                   = 0x0020000000000104
MIB_RSLOG2                   = 0x0010000000000000
MIB_RQLOG                    = 0x0045200000082600
MIB_REQLOGa                  = 0x800452000000bf00
MIB_REQLOGb                  = 0xc10008a400000100
Reserved                     = 0x0000000000000000
Cache Repair Detail          = 0x0000000000000000

PIM Detail Text:

-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  fffffff0f0d048b8  0000000000000000
04-07  fffffff0f0d046e0  fffffff0f0402bb0  fffffff0f0402468  0000000000000004
08-11  0000000000000001  8060000800000000  fffffff0f040bce0  8060000800000000
12-15  0000000000000000  0000000000005702  fffffff0f0402ec0  00000000400df050
16-19  0000000000000001  00000000fb6f0f88  00000000fb6f1088  200012ba00e00000
20-23  0000000000000000  00000000000000ff  fffffff0f0402eb0  0000000000000000
24-27  0000000000000005  0000000000000000  0000000000000002  fffffff0f0400000
28-31  fffffffffe780000  fffffff0f0402ca0  fffffff0f0402cb0  fffffff0f05f0070


Control Registers 0 - 31
00-03  000000007fffffff  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000008e98  0000000000000000  00000000000000c0  0000000000000007
12-15  0000000000000000  0000000000000000  0000000000102000  0000000000000000
16-19  0001e8d63471cd50  000000003ffffff0  fffffff0f0d048dc  00000000e81f1fef
20-23  000000009a27fff9  c0000000e0380030  000000ff0829fe08  8000000000000000
24-27  0000000000542000  00000001b17b6000  ffffffffffffffff  00000000400017e0
28-31  0000000000000003  ffffffffffffffff  00000001f1550000  38570ffc0bb20452

Space Registers 0 - 7
00-03  00000000023a6000  00000000023a6000  0000000000000000  00000000023a6000
04-07  00000000023a6000  00000000023a6000  00000000023a6000  00000000023a6000

IIA Space (back entry)       = 0x000000003ffffff0
IIA Offset (back entry)      = 0xfffffff0f0d048d8
CPU State                    = 0x9e000000

-----------------  Processor 1 HPMC Information - PDC Version: 45.11  ------ 

Timestamp =   Sun Mar  8 06:02:27 GMT 2009    (20:09:03:08:06:02:27)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0xe800035c00e00000 0x0000000040125330
       0x57000f7300e00000 0x8400000000800000
       0x5600100b00e00000 0x0000000000000194
       0x5600106400e00000 0xfffffff0f0436fc0

General Registers 0 - 31
00-03  0000000000000000  000000007f508200  0000000040125340  0000000000000001
04-07  00000000405ca240  fffffff0f0404f00  00000000fffffff0  0000000000000001
08-11  000000f0f0d08440  0100000000000000  000000000804000e  00000000405e81f4
12-15  0000000000000000  0000000000000016  0000000000000000  00000000000168b8
16-19  fffffff0f0d00b0c  0000000000016bec  00000000000168cc  00000000ffffffff
20-23  00000002bf8297f8  000000000800000e  000000023a74c198  0000000040d142d0
24-27  0000000000000001  00000002bf8297e8  000000004277d240  00000000405ca240
28-31  000000007f508000  000000007f5081d0  000000007f508200  0000000000000008

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000027464  0000000000000000  00000000000000c0  000000000000001b
12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
16-19  0001fce881fe07b0  0000000000000000  0000000040125330  00000000c7bfdfe5
20-23  0000000010240009  00000000df77d240  000000ff0806ff0f  0000000000000000
24-27  0000000000524000  000000021057e000  ffffffffffffffff  0000000040001460
28-31  0000000040001b00  ffffffffffffffff  000000007f508000  ffffffffffffffff

Space Registers 0 - 7
00-03  0000000009d19000  0000000009d19000  0000000000000000  0000000009d19000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000040125334
Check Type                   = 0x00000000
Cpu State                    = 0x9e000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x09d19000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  ffffffffffffff9c  bff0000000000000
08-11  0000000000000000  00000000405ca240  0000000000000802  000000004060a000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000555  000007c200000000
24-27  0000000000000000  00000000405ca240  00000000405ca240  0000000000000000
28-31  0000000000000803  0000000000000000  00000000405ca240  0000000000000803

PIM Revision                 = 0x0000000000000001                
CPU ID                       = 0x0000000000000014
CPU Revision                 = 0x0000000000000031
Cpu Serial Number            = 0x46100b89e43f0503
Check Summary                = 0x8400000000800000
SAL Timestamp                = 0x0000000049b35f73
System Firmware Rev.         = 0x00000b4b0000119f
PDC Relocation Address       = 0xfffffff0f0c00000
Available Memory             = 0x000000027fe00000
CPU Diagnose Register 2      = 0x3152020008082008
MIB_STAT                     = 0x0000000000000000
MIB_LOG1                     = 0x0000000000000000
MIB_LOG2                     = 0x0000000000000000
MIB_ECC_DATA                 = 0x0000000000000000
ICache Info                  = 0x0000000000000000
DCache Info                  = 0x0000000000000000
Sharedcache Info1            = 0x0000000000000000
Sharedcache Info2            = 0x0000000000000000
MIB_RSLOG1                   = 0x0000000000000000
MIB_RSLOG2                   = 0x0000000000000000
MIB_RQLOG                    = 0x0000000000000000
MIB_REQLOGa                  = 0x0000000000000000
MIB_REQLOGb                  = 0x0000000000000000
Reserved                     = 0x0000000000000000
Cache Repair Detail          = 0x0000000000000000

PIM Detail Text:

-----------------  Processor 1 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  000000007f508200  0000000040125340  0000000000000001
04-07  00000000405ca240  fffffff0f0404f00  00000000fffffff0  0000000000000001
08-11  000000f0f0d08440  0100000000000000  000000000804000e  00000000405e81f4
12-15  0000000000000000  0000000000000016  0000000000000000  00000000000168b8
16-19  fffffff0f0d00b0c  0000000000016bec  00000000000168cc  00000000ffffffff
20-23  00000002bf8297f8  000000000800000e  000000023a74c198  0000000040d142d0
24-27  0000000000000001  00000002bf8297e8  000000004277d240  00000000405ca240
28-31  000000007f508000  000000007f5081d0  000000007f508200  0000000000000008


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000027464  0000000000000000  00000000000000c0  000000000000001b
12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
16-19  0001fce881fe07b0  0000000000000000  0000000040125330  00000000c7bfdfe5
20-23  0000000010240009  00000000df77d240  000000ff0806ff0f  0000000000000000
24-27  0000000000524000  000000021057e000  ffffffffffffffff  0000000040001460
28-31  0000000040001b00  ffffffffffffffff  000000007f508000  ffffffffffffffff

Space Registers 0 - 7
00-03  0000000009d19000  0000000009d19000  0000000000000000  0000000009d19000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000040125334
CPU State                    = 0x9e000000

#  Location|Alert| Encoded Field    |  Data Field    |   Keyword / Timestamp
-------------------------------------------------------------------------------
232   SFW  0  *7  0xE880035C00E01440 00000000402492CB ERR_CHECK_HPMC
                                                      08 Mar 2009 06:02:02
233   SFW  1  *7  0xE880035C01E01460 0000000040125330 ERR_CHECK_HPMC
                                                      08 Mar 2009 06:02:02
234   SFW  0   2  0x57800F7300E01480 8400000000800000 ERR_CPU_CHECK_SUMMARY
                                                      08 Mar 2009 06:02:02
235   SFW  1   2  0x57800F7301E014A0 8400000000800000 ERR_CPU_CHECK_SUMMARY
                                                      08 Mar 2009 06:02:02
236   SFW  1   2  0x5680100B01E014C0 0000000000000194 MC_OS_HPMC_LEN_ERR
                                                      08 Mar 2009 06:02:02
237   SFW  0  *7  0xF680105E00E014E0 FFFFFFF0F0C00000 MC_HPMC_MONARCH_SELECTED
                                                      08 Mar 2009 06:02:02
238   SFW  1   2  0x5680106401E01500 FFFFFFF0F0436FC0 MC_BR_TO_OS_HPMC_FAILED
                                                      08 Mar 2009 06:02:02
239   SFW  0   2  0x5680100B00E01520 0000000000000194 MC_OS_HPMC_LEN_ERR
                                                      08 Mar 2009 06:02:03
240   SFW  0   2  0x5680106400E01540 FFFFFFF0F0435110 MC_BR_TO_OS_HPMC_FAILED
                                                      08 Mar 2009 06:02:03
241   SFW  1   2  0x57800F7301E01560 8400000000800000 ERR_CPU_CHECK_SUMMARY
                                                      08 Mar 2009 06:02:40
242   SFW  1   2  0x4380107401E01580 0000000000000000 MC_OS_TOC_MISSING
                                                      08 Mar 2009 06:02:47
243   BMC      2  0x2049B35FAB0215A0 FFFF027000120300 Type-02 127002 1208322
                                                      08 Mar 2009 06:03:23
244   BMC      2  0x2049B35FC70215B0 FFFF0103FDC00300 Type-02 c00301 12583681
                                                      08 Mar 2009 06:03:51
245        0   2  0x56801A4A00E015C0 0000000000000002 IPMI Type-E0 Event
                                                      08 Mar 2009 06:04:20

0000000040249228 <sys_msgctl>:
    40249228:   0f c2 12 c1     std rp,-10(sp)
    4024922c:   37 de 02 40     ldo 120(sp),sp
    40249230:   73 c6 3e d1     std r6,-98(sp)
    40249234:   08 18 02 46     copy r24,r6
    40249238:   73 c5 3e e1     std r5,-90(sp)
    4024923c:   db 25 0f e0     extrd,s r25,63,32,r5
    40249240:   73 c3 3f 01     std r3,-80(sp)
    40249244:   db 43 0f e0     extrd,s r26,63,32,r3
    40249248:   73 c9 3e a1     std r9,-b0(sp)
    4024924c:   73 c8 3e b1     std r8,-a8(sp)
    40249250:   73 c7 3e c1     std r7,-a0(sp)
    40249254:   8c 60 60 38     cmpib,> 0,r3,40249278 <sys_msgctl+0x50>
    40249258:   73 c4 3e f1     std r4,-88(sp)
    4024925c:   8c a0 60 30     cmpib,> 0,r5,4024927c <sys_msgctl+0x54>
    40249260:   34 1f 3f d5     ldi -16,r31
    40249264:   03 c0 08 bc     mfctl tr6,ret0
    40249268:   0f 80 10 df     ldd 0(ret0),r31
    4024926c:   53 f3 0c 30     ldd 618(r31),r19
    40249270:   8c b8 80 60     cmpib,>>= c,r5,402492a8 <sys_msgctl+0x80>
    40249274:   52 67 00 20     ldd 10(r19),r7
    40249278:   34 1f 3f d5     ldi -16,r31
    4024927c:   08 1f 02 5c     copy r31,ret0
    40249280:   53 c2 3d a1     ldd -130(sp),rp
    40249284:   53 c9 3e a1     ldd -b0(sp),r9
    40249288:   53 c8 3e b1     ldd -a8(sp),r8
    4024928c:   53 c7 3e c1     ldd -a0(sp),r7
    40249290:   53 c6 3e d1     ldd -98(sp),r6
    40249294:   53 c5 3e e1     ldd -90(sp),r5
    40249298:   53 c4 3e f1     ldd -88(sp),r4
    4024929c:   53 c3 3f 01     ldd -80(sp),r3
    402492a0:   e8 40 d0 00     bve (rp)
    402492a4:   37 de 3d c1     ldo -120(sp),sp
    402492a8:   01 65 18 c0     mtsarcm r5
    402492ac:   34 1c 10 08     ldi 804,ret0
    402492b0:   d7 e2 13 00     depdi,z 1,sar,64,r31
    402492b4:   0b 9f 02 3c     and r31,ret0,ret0
    402492b8:   9f 80 20 c2     cmpb,*=,n r0,ret0,40249320 <sys_msgctl+0xf8>
    402492bc:   9f 00 3f 75     cmpb,*= r0,r24,4024927c <sys_msgctl+0x54>
    402492c0:   34 1f 3f e5     ldi -e,r31
    402492c4:   84 b6 22 28     cmpib,= b,r5,402493e0 <sys_msgctl+0x1b8>
    402492c8:   08 03 02 59     copy r3,r25
    402492cc:   08 1b 02 44     copy dp,r4

00000000401252d0 <cpu_idle>:
    401252d0:   0f c2 12 c1     std rp,-10(sp)
    401252d4:   73 c4 01 08     std,ma r4,80(sp)
    401252d8:   03 c0 08 bc     mfctl tr6,ret0
    401252dc:   37 93 00 20     ldo 10(ret0),r19
    401252e0:   00 01 0e 74     rsm 1,r20
    401252e4:   da 7f 0b 3e     extrd,u r19,57,2,r31
    401252e8:   2b 64 30 00     addil L%9800,dp,r1
    401252ec:   50 3c 09 a0     ldd 4d0(r1),ret0
    401252f0:   e8 00 00 10     b,l 40125300 <cpu_idle+0x30>,r0
    401252f4:   0b 9f 0a bf     shladd,l r31,2,ret0,r31
    401252f8:   0f e0 10 9c     ldw 0(r31),ret0
    401252fc:   9f 80 20 8a     cmpb,*=,n r0,ret0,40125348 <cpu_idle+0x78>
    40125300:   0f e0 15 dc     ldcw,co 0(r31),ret0
    40125304:   87 80 3f dd     cmpib,= 0,ret0,401252f8 <cpu_idle+0x28>
    40125308:   08 00 02 40     nop
    4012530c:   0e 60 10 dc     ldd 0(r19),ret0
    40125310:   f7 9f 04 7f     depdi -1,60,1,ret0
    40125314:   0e 7c 12 c0     std ret0,0(r19)
    40125318:   34 1c 00 02     ldi 1,ret0
    4012531c:   0f fc 12 80     stw ret0,0(r31)
    40125320:   00 14 18 60     mtsm r20
    40125324:   e8 1f 1f ff     b,l,n 40125328 <cpu_idle+0x58>,r0
    40125328:   03 c0 08 bc     mfctl tr6,ret0
    4012532c:   53 9f 00 20     ldd 10(ret0),r31
    40125330:   c7 bf df e5     bb,>= r31,1d,40125328 <cpu_idle+0x58>
    40125334:   37 dd 3f a1     ldo -30(sp),ret1
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From - Thu Nov 08 21:03:49 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: hpmc on rp3440 with 2.6.29-rc5
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On Mon, Mar 16, 2009 at 08:48:01PM -0400, John David Anglin wrote:
> Below is some info that I collected from a HPMC that occurred running the GCC
> testsuite.  I believe this kernel was built with the master branch from
> Kyle's parisc-2.6.git tree.
> 
> In the info below, I only included relevant data.  No hpmc data was
> recorded for processors 2 and 3.  Unfortunately, I lost the console output
> for the crash if any.
> 
> This is with a SMP 64-bit kernel.  I still have it and the config file.
> 
> I'm not the greatest at interpreting chassis codes.  It's not at all clear
> to me what went wrong.
>

Good catch, looks like we're missing a compat handler for msgctl. I'll
add one and hopefully this will go away. :)

regards ,Kyle
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From - Thu Nov 08 21:03:49 2018
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Subject: Re: hpmc on rp3440 with 2.6.29-rc5
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On Mon, Mar 16, 2009 at 08:51:47PM -0400, Kyle McMartin wrote:
> > In the info below, I only included relevant data.  No hpmc data was
> > recorded for processors 2 and 3.  Unfortunately, I lost the console output
> > for the crash if any.
> > 
> > This is with a SMP 64-bit kernel.  I still have it and the config file.
> > 
> > I'm not the greatest at interpreting chassis codes.  It's not at all clear
> > to me what went wrong.
> >
> 
> Good catch, looks like we're missing a compat handler for msgctl. I'll
> add one and hopefully this will go away. :)
> 

Woah. Really good catch, we're missing compat handlers for virtually all
the ipc functions!

I'll fix this up ASAP.

Thanks!
	Kyle
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From - Thu Nov 08 21:03:49 2018
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Subject: Re: hpmc on rp3440 with 2.6.29-rc5
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> Woah. Really good catch, we're missing compat handlers for virtually all
> the ipc functions!

Is there some way to do an audit as to what else might be missing?

The reason I ask is that I tried linus 2.6.29-rc8 on my c3750 Saturday.
There's still a problem with user and group access by sshd.  There may
be a load dependence.  I have only seen this with 32-bit kernels.  It's
not present in 2.6.22.

Other common problems are occasional timeouts in the GCC testsuite
by some programs that shouldn't timeout.  There are also occasional
timeouts in pthread related applications but that's likely a glibc
issue.

I also see truncated output from some tests that generate a lot of
output.  This seems worse with 32-bit kernels.  There are a couple of
tests in the binutils gas testsuite that trigger this all the time.
I would think this has something to do with exit and pipe sizes.

The last two problems have been around for a long time.

> I'll fix this up ASAP.

Fantastic!

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:49 2018
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From: Alexander Beregalov <a.beregalov@gmail.com>
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Subject: Re: can't compile kernel for parisc
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Hi

ld now does not segfault

http://lists.gnu.org/archive/html/bug-binutils/2009-03/msg00105.html

but I still can not build kernel.

   ld    -r -o init/built-in.o init/main.o init/version.o
init/mounts.o init/noinitramfs.o init/calibrate.o
  ld  --build-id -o .tmp_vmlinux1 -T arch/parisc/kernel/vmlinux.lds
arch/parisc/kernel/head.o   init/built-in.o --start-group
usr/built-in.o  arch/parisc/mm/built-in.o
arch/parisc/kernel/built-in.o  arch/parisc/math-emu/built-in.o
arch/parisc/kernel/init_task.o  kernel/built-in.o  mm/built-in.o
fs/built-in.o  ipc/built-in.o  security/built-in.o  crypto/built-in.o
block/built-in.o  lib/lib.a  arch/parisc/lib/lib.a `gcc
-print-libgcc-file-name`  lib/built-in.o  arch/parisc/lib/built-in.o
`gcc -print-libgcc-file-name`  drivers/built-in.o  sound/built-in.o
firmware/built-in.o  net/built-in.o --end-group
ld: arch/parisc/kernel/built-in.o(.text+0xc84): cannot reach
000000b2_b2:46+4068, recompile with -ffunction-sections
ld: arch/parisc/kernel/built-in.o(.text+0xc84): cannot handle
R_PARISC_PCREL12F for .text

I have recompiled kernel with -ffunction-sections, but still the same problem.

diff --git a/Makefile b/Makefile
index 2e2f4a4..61b09b2 100644
--- a/Makefile
+++ b/Makefile
@@ -346,7 +346,7 @@ KBUILD_CPPFLAGS := -D__KERNEL__

 KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
                   -fno-strict-aliasing -fno-common \
-                  -Werror-implicit-function-declaration
+                  -Werror-implicit-function-declaration -ffunction-sections
 KBUILD_AFLAGS   := -D__ASSEMBLY__

 # Read KERNELRELEASE from include/config/kernel.release (if it exists)


gcc version 4.3.3 (Gentoo 4.3.3-r1 p1.1, pie-10.1.5)
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From - Thu Nov 08 21:03:49 2018
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.parisc
Subject: Out of order unwind entry
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Hello,

I just tested 2.6.29-rc8 on A400. Works fine but I got these warnings at 
bootup - maybe someone is interested:

[    0.000000] Linux version 2.6.29-rc8 (mroos@sidrun) (gcc version 4.3.2 (GCC) ) #1 Tue Mar 17 19:03:54 EET 2009
[    0.000000] unwind_init: start = 0x403f5e24, end = 0x4041b7f4, entries = 9629
[    0.000000] WARNING: Out of order unwind entry! 00000000403f7904 and 00000000403f7914
[    0.000000] WARNING: Out of order unwind entry! 00000000403f7914 and 00000000403f7924
[    0.000000] FP[0] enabled: Rev 1 Model 16
[    0.000000] The 64-bit Kernel has started...

config:

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.29-rc8
# Tue Mar 17 18:38:25 2009
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_IRQ_PER_CPU=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
# CONFIG_AUDIT is not set

#
# RCU Subsystem
#
CONFIG_CLASSIC_RCU=y
# CONFIG_TREE_RCU is not set
# CONFIG_PREEMPT_RCU is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_PREEMPT_RCU_TRACE is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=15
# CONFIG_GROUP_SCHED is not set
# CONFIG_CGROUPS is not set
# CONFIG_SYSFS_DEPRECATED_V2 is not set
CONFIG_RELAY=y
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
# CONFIG_MARKERS is not set
CONFIG_OPROFILE=m
CONFIG_HAVE_OPROFILE=y
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_INTEGRITY is not set
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
# CONFIG_SMP is not set
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_UNEVICTABLE_LRU=y
CONFIG_COMPAT=y

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
# CONFIG_GSC is not set
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCI_LEGACY is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=m
CONFIG_NET=y

#
# Networking options
#
CONFIG_COMPAT_NET_DEV_OPS=y
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
CONFIG_NET_KEY_MIGRATE=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=m
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=m
CONFIG_IPV6_PRIVACY=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_PIMSM_V2=y
# CONFIG_NETLABEL is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CT_ACCT=y
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CT_PROTO_DCCP=m
CONFIG_NF_CT_PROTO_GRE=m
CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NETFILTER_TPROXY=m
CONFIG_NETFILTER_XTABLES=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_TPROXY=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
# CONFIG_NETFILTER_XT_MATCH_RECENT_PROC_COMPAT is not set
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_NF_NAT_SNMP_BASIC=m
CONFIG_NF_NAT_PROTO_DCCP=m
CONFIG_NF_NAT_PROTO_GRE=m
CONFIG_NF_NAT_PROTO_UDPLITE=m
CONFIG_NF_NAT_PROTO_SCTP=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_PPTP=m
CONFIG_NF_NAT_H323=m
CONFIG_NF_NAT_SIP=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
# CONFIG_IP_NF_SECURITY is not set
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m

#
# IPv6: Netfilter Configuration
#
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_TARGET_HL=m
CONFIG_IP6_NF_RAW=m
# CONFIG_IP6_NF_SECURITY is not set
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_IP6=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_ULOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_TIPC is not set
CONFIG_ATM=m
CONFIG_ATM_CLIP=m
# CONFIG_ATM_CLIP_NO_ICMP is not set
CONFIG_ATM_LANE=m
CONFIG_ATM_MPOA=m
CONFIG_ATM_BR2684=m
# CONFIG_ATM_BR2684_IPFILTER is not set
CONFIG_STP=m
CONFIG_GARP=m
CONFIG_BRIDGE=m
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
# CONFIG_DECNET is not set
CONFIG_LLC=m
CONFIG_LLC2=m
# CONFIG_IPX is not set
CONFIG_ATALK=m
CONFIG_DEV_APPLETALK=m
CONFIG_IPDDP=m
CONFIG_IPDDP_ENCAP=y
CONFIG_IPDDP_DECAP=y
# CONFIG_X25 is not set
CONFIG_LAPB=m
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_ATM=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_DRR=m
CONFIG_NET_SCH_INGRESS=m

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_ROUTE=y
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_IPT=m
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_CLS_IND=y
CONFIG_NET_SCH_FIFO=y
# CONFIG_DCB is not set

#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_PHONET is not set
CONFIG_FIB_RULES=y
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=m
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
CONFIG_ATA_OVER_ETH=m
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=m
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=m
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_FC_TGT_ATTRS=y
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_SAS_HOST_SMP=y
# CONFIG_SCSI_SAS_LIBSAS_DEBUG is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
CONFIG_ISCSI_TCP=m
CONFIG_BLK_DEV_3W_XXXX_RAID=m
CONFIG_SCSI_3W_9XXX=m
CONFIG_SCSI_ACARD=m
CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=32
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
CONFIG_AIC7XXX_DEBUG_ENABLE=y
CONFIG_AIC7XXX_DEBUG_MASK=0
CONFIG_AIC7XXX_REG_PRETTY_PRINT=y
CONFIG_SCSI_AIC7XXX_OLD=m
CONFIG_SCSI_AIC79XX=m
CONFIG_AIC79XX_CMDS_PER_DEVICE=32
CONFIG_AIC79XX_RESET_DELAY_MS=15000
CONFIG_AIC79XX_DEBUG_ENABLE=y
CONFIG_AIC79XX_DEBUG_MASK=0
CONFIG_AIC79XX_REG_PRETTY_PRINT=y
CONFIG_SCSI_AIC94XX=m
# CONFIG_AIC94XX_DEBUG is not set
CONFIG_SCSI_DPT_I2O=m
CONFIG_SCSI_ADVANSYS=m
CONFIG_SCSI_ARCMSR=m
CONFIG_MEGARAID_NEWGEN=y
CONFIG_MEGARAID_MM=m
CONFIG_MEGARAID_MAILBOX=m
CONFIG_MEGARAID_LEGACY=m
CONFIG_MEGARAID_SAS=m
CONFIG_SCSI_HPTIOP=m
CONFIG_LIBFC=m
CONFIG_FCOE=m
CONFIG_SCSI_DMX3191D=m
CONFIG_SCSI_FUTURE_DOMAIN=m
CONFIG_SCSI_IPS=m
CONFIG_SCSI_INITIO=m
CONFIG_SCSI_INIA100=m
CONFIG_SCSI_MVSAS=m
CONFIG_SCSI_STEX=m
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
CONFIG_SCSI_QLOGIC_1280=m
CONFIG_SCSI_QLA_FC=m
CONFIG_SCSI_QLA_ISCSI=m
CONFIG_SCSI_LPFC=m
# CONFIG_SCSI_LPFC_DEBUG_FS is not set
CONFIG_SCSI_DC395x=m
CONFIG_SCSI_DC390T=m
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_DH is not set
CONFIG_ATA=m
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_SATA_PMP=y
CONFIG_SATA_AHCI=m
CONFIG_SATA_SIL24=m
CONFIG_ATA_SFF=y
CONFIG_SATA_SVW=m
# CONFIG_ATA_PIIX is not set
CONFIG_SATA_MV=m
# CONFIG_SATA_NV is not set
CONFIG_PDC_ADMA=m
CONFIG_SATA_QSTOR=m
CONFIG_SATA_PROMISE=m
CONFIG_SATA_SX4=m
CONFIG_SATA_SIL=m
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_ULI is not set
CONFIG_SATA_VIA=m
CONFIG_SATA_VITESSE=m
CONFIG_SATA_INIC162X=m
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
CONFIG_PATA_ARTOP=m
# CONFIG_PATA_ATIIXP is not set
CONFIG_PATA_CMD640_PCI=m
CONFIG_PATA_CMD64X=m
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
CONFIG_ATA_GENERIC=m
CONFIG_PATA_HPT366=m
CONFIG_PATA_HPT37X=m
CONFIG_PATA_HPT3X2N=m
CONFIG_PATA_HPT3X3=m
CONFIG_PATA_HPT3X3_DMA=y
CONFIG_PATA_IT821X=m
CONFIG_PATA_IT8213=m
CONFIG_PATA_JMICRON=m
# CONFIG_PATA_TRIFLEX is not set
CONFIG_PATA_MARVELL=m
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RZ1000 is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SERVERWORKS is not set
CONFIG_PATA_PDC2027X=m
CONFIG_PATA_SIL680=m
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set
# CONFIG_PATA_SCH is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
CONFIG_MD_RAID5_RESHAPE=y
CONFIG_MD_MULTIPATH=m
CONFIG_MD_FAULTY=m
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_DELAY=m
CONFIG_DM_UEVENT=y
CONFIG_FUSION=y
CONFIG_FUSION_SPI=m
CONFIG_FUSION_FC=m
CONFIG_FUSION_SAS=m
CONFIG_FUSION_MAX_SGE=40
CONFIG_FUSION_CTL=m
# CONFIG_FUSION_LOGGING is not set

#
# IEEE 1394 (FireWire) support
#

#
# Enable only one of the two stacks, unless you know what you are doing
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
CONFIG_I2O=m
CONFIG_I2O_LCT_NOTIFY_ON_CHANGES=y
CONFIG_I2O_EXT_ADAPTEC=y
CONFIG_I2O_EXT_ADAPTEC_DMA64=y
CONFIG_I2O_CONFIG=m
CONFIG_I2O_CONFIG_OLD_IOCTL=y
CONFIG_I2O_BUS=m
CONFIG_I2O_BLOCK=m
CONFIG_I2O_SCSI=m
CONFIG_I2O_PROC=m
CONFIG_NETDEVICES=y
CONFIG_IFB=m
# CONFIG_DUMMY is not set
CONFIG_BONDING=m
CONFIG_MACVLAN=m
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
CONFIG_VETH=m
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
CONFIG_ICPLUS_PHY=m
CONFIG_REALTEK_PHY=m
CONFIG_NATIONAL_PHY=m
CONFIG_STE10XP=m
CONFIG_LSI_ET1011C_PHY=m
CONFIG_MDIO_BITBANG=m
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
CONFIG_HAPPYMEAL=m
CONFIG_SUNGEM=m
CONFIG_CASSINI=m
CONFIG_NET_VENDOR_3COM=y
CONFIG_VORTEX=m
CONFIG_TYPHOON=m
CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_TULIP=m
CONFIG_TULIP_MWI=y
CONFIG_TULIP_MMIO=y
CONFIG_TULIP_NAPI=y
CONFIG_TULIP_NAPI_HW_MITIGATION=y
CONFIG_DE4X5=m
CONFIG_WINBOND_840=m
CONFIG_DM9102=m
CONFIG_ULI526X=m
CONFIG_HP100=m
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
CONFIG_PCNET32=m
CONFIG_AMD8111_ETH=m
CONFIG_ADAPTEC_STARFIRE=m
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
CONFIG_E100=m
CONFIG_FEALNX=m
CONFIG_NATSEMI=m
CONFIG_NE2K_PCI=m
CONFIG_8139CP=m
CONFIG_8139TOO=m
# CONFIG_8139TOO_PIO is not set
CONFIG_8139TOO_TUNE_TWISTER=y
CONFIG_8139TOO_8129=y
# CONFIG_8139_OLD_RX_RESET is not set
CONFIG_R6040=m
CONFIG_SIS900=m
CONFIG_EPIC100=m
CONFIG_SMSC9420=m
CONFIG_SUNDANCE=m
CONFIG_SUNDANCE_MMIO=y
CONFIG_TLAN=m
CONFIG_VIA_RHINE=m
CONFIG_VIA_RHINE_MMIO=y
CONFIG_SC92031=m
CONFIG_ATL2=m
CONFIG_NETDEV_1000=y
CONFIG_ACENIC=m
# CONFIG_ACENIC_OMIT_TIGON_I is not set
CONFIG_DL2K=m
CONFIG_E1000=m
# CONFIG_E1000E is not set
CONFIG_IP1000=m
# CONFIG_IGB is not set
CONFIG_NS83820=m
CONFIG_HAMACHI=m
CONFIG_YELLOWFIN=m
CONFIG_R8169=m
CONFIG_R8169_VLAN=y
CONFIG_SIS190=m
CONFIG_SKGE=m
# CONFIG_SKGE_DEBUG is not set
CONFIG_SKY2=m
# CONFIG_SKY2_DEBUG is not set
CONFIG_VIA_VELOCITY=m
CONFIG_TIGON3=m
# CONFIG_BNX2 is not set
CONFIG_QLA3XXX=m
CONFIG_ATL1=m
CONFIG_ATL1E=m
CONFIG_ATL1C=m
# CONFIG_JME is not set
# CONFIG_NETDEV_10000 is not set
CONFIG_TR=m
CONFIG_IBMOL=m
CONFIG_3C359=m
CONFIG_TMS380TR=m
CONFIG_TMSPCI=m
CONFIG_ABYSS=m

#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 is not set
# CONFIG_IWLWIFI_LEDS is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
CONFIG_ATM_DRIVERS=y
CONFIG_ATM_DUMMY=m
CONFIG_ATM_TCP=m
CONFIG_ATM_LANAI=m
CONFIG_ATM_ENI=m
# CONFIG_ATM_ENI_DEBUG is not set
# CONFIG_ATM_ENI_TUNE_BURST is not set
CONFIG_ATM_FIRESTREAM=m
CONFIG_ATM_ZATM=m
# CONFIG_ATM_ZATM_DEBUG is not set
CONFIG_ATM_IDT77252=m
# CONFIG_ATM_IDT77252_DEBUG is not set
# CONFIG_ATM_IDT77252_RCV_ALL is not set
CONFIG_ATM_IDT77252_USE_SUNI=y
CONFIG_ATM_AMBASSADOR=m
# CONFIG_ATM_AMBASSADOR_DEBUG is not set
CONFIG_ATM_HORIZON=m
# CONFIG_ATM_HORIZON_DEBUG is not set
CONFIG_ATM_IA=m
# CONFIG_ATM_IA_DEBUG is not set
CONFIG_ATM_FORE200E=m
# CONFIG_ATM_FORE200E_USE_TASKLET is not set
CONFIG_ATM_FORE200E_TX_RETRY=16
CONFIG_ATM_FORE200E_DEBUG=0
CONFIG_ATM_HE=m
CONFIG_ATM_HE_USE_SUNI=y
CONFIG_ATM_SOLOS=m
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
CONFIG_PPPOATM=m
CONFIG_PPPOL2TP=m
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLHC=m
CONFIG_SLIP_SMART=y
CONFIG_SLIP_MODE_SLIP6=y
# CONFIG_NET_FC is not set
CONFIG_NETCONSOLE=m
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
CONFIG_NETPOLL_TRAP=y
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=m
CONFIG_INPUT_POLLDEV=m

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_DEVKMEM=y
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
CONFIG_PDC_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
# CONFIG_SPI is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_REGULATOR is not set

#
# Multimedia devices
#

#
# Multimedia core support
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
# CONFIG_VIDEO_MEDIA is not set

#
# Multimedia drivers
#
# CONFIG_DAB is not set

#
# Graphics support
#
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_SOUND is not set
# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_PARISC=y
# CONFIG_DMADEVICES is not set
# CONFIG_UIO is not set
# CONFIG_STAGING is not set

#
# File systems
#
CONFIG_EXT2_FS=m
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT2_FS_XIP=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_EXT4_FS=m
# CONFIG_EXT4DEV_COMPAT is not set
CONFIG_EXT4_FS_XATTR=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
CONFIG_FS_XIP=y
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_JBD2=m
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=m
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_JFS_FS=m
CONFIG_JFS_POSIX_ACL=y
CONFIG_JFS_SECURITY=y
# CONFIG_JFS_DEBUG is not set
# CONFIG_JFS_STATISTICS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_FILE_LOCKING=y
CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
# CONFIG_XFS_DEBUG is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
CONFIG_QUOTA_TREE=m
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_GENERIC_ACL=y

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="utf8"
CONFIG_NTFS_FS=m
# CONFIG_NTFS_DEBUG is not set
CONFIG_NTFS_RW=y

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=m
CONFIG_MISC_FILESYSTEMS=y
CONFIG_ADFS_FS=m
# CONFIG_ADFS_FS_RW is not set
CONFIG_AFFS_FS=m
CONFIG_ECRYPT_FS=m
CONFIG_HFS_FS=m
CONFIG_HFSPLUS_FS=m
CONFIG_BEFS_FS=m
# CONFIG_BEFS_DEBUG is not set
CONFIG_BFS_FS=m
CONFIG_EFS_FS=m
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
CONFIG_VXFS_FS=m
CONFIG_MINIX_FS=m
CONFIG_OMFS_FS=m
CONFIG_HPFS_FS=m
CONFIG_QNX4FS_FS=m
CONFIG_ROMFS_FS=m
CONFIG_SYSV_FS=m
CONFIG_UFS_FS=m
# CONFIG_UFS_FS_WRITE is not set
# CONFIG_UFS_DEBUG is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=m
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
# CONFIG_SUNRPC_REGISTER_V4 is not set
CONFIG_RPCSEC_GSS_KRB5=m
CONFIG_RPCSEC_GSS_SPKM3=m
# CONFIG_SMB_FS is not set
CONFIG_CIFS=m
# CONFIG_CIFS_STATS is not set
CONFIG_CIFS_WEAK_PW_HASH=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
# CONFIG_CIFS_DEBUG2 is not set
CONFIG_CIFS_EXPERIMENTAL=y
CONFIG_CIFS_DFS_UPCALL=y
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
CONFIG_OSF_PARTITION=y
CONFIG_AMIGA_PARTITION=y
CONFIG_ATARI_PARTITION=y
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_LDM_PARTITION=y
# CONFIG_LDM_DEBUG is not set
CONFIG_SGI_PARTITION=y
CONFIG_ULTRIX_PARTITION=y
CONFIG_SUN_PARTITION=y
CONFIG_KARMA_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_SYSV68_PARTITION=y
CONFIG_NLS=m
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set

#
# Kernel hacking
#
CONFIG_PRINTK_TIME=y
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_DETECT_SOFTLOCKUP is not set
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_DETECTOR=y
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_SYSCTL_SYSCALL_CHECK is not set
CONFIG_NOP_TRACER=y
CONFIG_RING_BUFFER=y
CONFIG_TRACING=y

#
# Tracers
#
# CONFIG_SCHED_TRACER is not set
# CONFIG_CONTEXT_SWITCH_TRACER is not set
# CONFIG_BOOT_TRACER is not set
# CONFIG_TRACE_BRANCH_PROFILING is not set
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_DYNAMIC_PRINTK_DEBUG is not set
# CONFIG_SAMPLES is not set
CONFIG_DEBUG_RODATA=y

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
CONFIG_SECURITY=y
# CONFIG_SECURITYFS is not set
# CONFIG_SECURITY_NETWORK is not set
# CONFIG_SECURITY_PATH is not set
CONFIG_SECURITY_FILE_CAPABILITIES=y
CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=0
CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_FIPS=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_MANAGER=m
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_SEQIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=m
CONFIG_CRYPTO_XCBC=m

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=m
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_LZO=m

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
# CONFIG_CRYPTO_HW is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_LAST_BIT=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
# CONFIG_CRC_T10DIF is not set
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=m
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=m
CONFIG_LZO_DECOMPRESS=m
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CHECK_SIGNATURE=y

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:03:49 2018
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X-Mozilla-Keys:                                                                                 
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: can't compile kernel for parisc
Date: Wed, 18 Mar 2009 10:00:26 -0400 (EDT)
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Cc: carlos@systemhalted.org, linux-parisc@vger.kernel.org
To: a.beregalov@gmail.com (Alexander Beregalov)
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> but I still can not build kernel.
> 
>    ld    -r -o init/built-in.o init/main.o init/version.o
> init/mounts.o init/noinitramfs.o init/calibrate.o
>   ld  --build-id -o .tmp_vmlinux1 -T arch/parisc/kernel/vmlinux.lds
> arch/parisc/kernel/head.o   init/built-in.o --start-group
> usr/built-in.o  arch/parisc/mm/built-in.o
> arch/parisc/kernel/built-in.o  arch/parisc/math-emu/built-in.o
> arch/parisc/kernel/init_task.o  kernel/built-in.o  mm/built-in.o
> fs/built-in.o  ipc/built-in.o  security/built-in.o  crypto/built-in.o
> block/built-in.o  lib/lib.a  arch/parisc/lib/lib.a `gcc
> -print-libgcc-file-name`  lib/built-in.o  arch/parisc/lib/built-in.o
> `gcc -print-libgcc-file-name`  drivers/built-in.o  sound/built-in.o
> firmware/built-in.o  net/built-in.o --end-group
> ld: arch/parisc/kernel/built-in.o(.text+0xc84): cannot reach
> 000000b2_b2:46+4068, recompile with -ffunction-sections
> ld: arch/parisc/kernel/built-in.o(.text+0xc84): cannot handle
> R_PARISC_PCREL12F for .text
> 
> I have recompiled kernel with -ffunction-sections, but still the same problem.

The branch target is out of range.  The message "recompile with
-ffunction-sections" is somewhat misleading in this case.

-ffunction-sections won't work because GCC doesn't generate calls
with instructions that would use a R_PARISC_PCREL12F relocation.
This is some kind of conditional branch.  Probably, it's in some
kernel assembly code.

You need to use nm, objdump and/or readelf to determine which file
contributing to built-in.o contains the branch.  I looked in one of
my builds and didn't see this relocation.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:03:49 2018
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From: Alexander Beregalov <a.beregalov@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: 2.6.29-rc8: Badness at kernel/smp.c:329
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Hi

Ok, I have finally built the kernel, thanks to all.
Machine has two PA8700 CPUs.
kernel is 32bit

2.6.29-rc8-00174-gee568b2:

 Freeing unused kernel memory: <0>------------[ cut here ]------------
 Badness at kernel/smp.c:329

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
 PSW: 00000000000001001111011100001110 Not tainted
 r00-03  0004f70e 1058be90 101644f4 10547e90
 r04-07  101004d8 00000000 104eb0e8 101004d8
 r08-11  00000000 00000001 10507548 105c3180
 r12-15  ef821430 00000001 ef844090 1053e840
 r16-19  104eae98 105c3180 10541bc0 105c4000
 r20-23  00000000 105c4000 00000000 00000001
 r24-27  00000000 101004d8 104eb0e8 104eae90
 r28-31  0000000e 00000000 ef8242c0 00800480
 sr00-03  00000000 00000000 00000000 00000000
 sr04-07  00000000 00000000 00000000 00000000

 IASQ: 00000000 00000000 IAOQ: 101644c0 101644c4
  IIR: 03ffe01f    ISR: 1024037e  IOR: 09024260
  CPU:        0   CR30: ef824000 CR31: 40002008
  ORIG_R28: 00000001
  IAOQ[0]: smp_call_function_many+0x2d4/0x2e0
  IAOQ[1]: smp_call_function_many+0x2d8/0x2e0
  RP(r2): smp_call_function+0x28/0x38
 Backtrace:
  [<101644f4>] smp_call_function+0x28/0x38
  [<105a4e90>] _einittext+0x0/0x10
  [<101644f4>] smp_call_function+0x28/0x38
  [<10142968>] on_each_cpu+0x1c/0x50
  [<10116e64>] free_initmem+0x60/0x1d0
  [<10116624>] init_post+0x1c/0x198

 ------------[ cut here ]------------
 Badness at kernel/smp.c:226

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
 PSW: 00000000000001001111111100001110 Tainted: G        W
 r00-03  0004ff0e 10507e90 101644f4 00000001
 r04-07  00000000 101004d8 00000000 105c4000
 r08-11  105a4ea0 105a4e90 10507548 105c3180
 r12-15  ef821430 00000001 ef844090 1053e840
 r16-19  104eae98 105c3180 10541bc0 0000000e
 r20-23  00000002 104eb0e8 0000001e 00000001
 r24-27  00000000 101004d8 00000001 104eae90
 r28-31  ef824000 00000000 ef8242c0 00000001
 sr00-03  00000000 00000000 00000000 00000000
 sr04-07  00000000 00000000 00000000 00000000

 IASQ: 00000000 00000000 IAOQ: 10164138 1016413c
  IIR: 03ffe01f    ISR: 1024037e  IOR: 09024264
  CPU:        0   CR30: ef824000 CR31: 40002008
  ORIG_R28: 00000001
  IAOQ[0]: smp_call_function_single+0xa0/0x154
  IAOQ[1]: smp_call_function_single+0xa4/0x154
  RP(r2): smp_call_function+0x28/0x38
 Backtrace:
  [<101644f4>] smp_call_function+0x28/0x38
  [<1016a6e0>] __irq_set_trigger+0xa4/0xdc
  [<101642a8>] smp_call_function_many+0xbc/0x2e0
  [<101642a8>] smp_call_function_many+0xbc/0x2e0
  [<101642a8>] smp_call_function_many+0xbc/0x2e0
  [<101642a8>] smp_call_function_many+0xbc/0x2e0
  [<101642a8>] smp_call_function_many+0xbc/0x2e0
  [<101642a8>] smp_call_function_many+0xbc/0x2e0
  [<101642a8>] smp_call_function_many+0xbc/0x2e0
  [<101642a8>] smp_call_function_many+0xbc/0x2e0
  [<101642a8>] smp_call_function_many+0xbc/0x2e0
  [<101642a8>] smp_call_function_many+0xbc/0x2e0
  [<101642a8>] smp_call_function_many+0xbc/0x2e0
  [<101642a8>] smp_call_function_many+0xbc/0x2e0
  [<101642a8>] smp_call_function_many+0xbc/0x2e0
  [<101642a8>] smp_call_function_many+0xbc/0x2e0

 224k freed


Kernel continues working after that.
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From - Thu Nov 08 21:03:49 2018
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From: Meelis Roos <mroos@ut.ee>
Newsgroups: gmane.linux.ports.parisc
Subject: hang/panic on reboot (was: unwind)
Date: Thu, 19 Mar 2009 02:33:13 +0200 (EET)
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(talk about todays 2.6.29-rc8+git)

> [    0.000000] Linux version 2.6.29-rc8 (mroos@sidrun) (gcc version 4.3.2 (GCC) ) #1 Tue Mar 17 19:03:54 EET 2009
> [    0.000000] unwind_init: start = 0x403f5e24, end = 0x4041b7f4, entries = 9629
> [    0.000000] WARNING: Out of order unwind entry! 00000000403f7904 and 00000000403f7914
> [    0.000000] WARNING: Out of order unwind entry! 00000000403f7914 and 00000000403f7924
> [    0.000000] FP[0] enabled: Rev 1 Model 16
> [    0.000000] The 64-bit Kernel has started...

It appears there is one serious problem too - hang/panic on reboot when 
killing all processes. Usually it starts spewing out rsyslog illegal 
instruction messages in the loop. Sometimes RCU stall detector chimes in 
periodically, this time I got a panic mentioning unwind. Also, 
"Backtrace:" is mentioned twice (seems strange too).

The RCU stall messages from another boot) look like this:

[42949569.530000] INFO: RCU detected CPU 0 stall (t=4294956953/1000 jiffies)
[42949569.530000] Backtrace:
[42949569.530000]  [<0000000040116ef4>] show_stack+0x14/0x20
[42949569.530000]  [<0000000040111558>] dump_stack+0x18/0x28
[42949569.530000]  [<000000004016e3d4>] __rcu_pending+0x74/0x208
[42949569.530000]  [<000000004016e58c>] rcu_pending+0x24/0x68
[42949569.530000]  [<000000004014808c>] update_process_times+0x54/0xb8
[42949569.530000]  [<0000000040118190>] timer_interrupt+0x158/0x1b0
[42949569.530000]  [<000000004016b1b0>] handle_IRQ_event+0x60/0xc0
[42949569.530000]  [<000000004016b2b8>] __do_IRQ+0xa8/0x1e8
[42949569.530000]  [<00000000401185e8>] do_cpu_irq_mask+0xf8/0x140
[42949569.530000]  [<0000000040104074>] intr_return+0x0/0x4

Please CC: since I'm not subscribed to linux-parisc.


Full serial console log:

-------------------------------------------------------------------------------------

Firmware Version  40.32

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      440  MHz   Active                 Functional         512 KB   1 MB

  Central Bus Speed (in MHz)  :        111  
  Available Memory            :     655360  KB
  Good Memory Required        :       8300  KB

   Primary boot path:    0/0/1/1.15          
   Alternate boot path:  0/0/2/1.15          
   Console path:         0/0/4/0.0           
   Keyboard path:        0/0/4/0.0           


Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

10 seconds expired.
Proceeding...

Trying Primary Boot Path
------------------------
Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.14 root@penalosa Wed Oct  8 15:04:37 UTC 2008
Skipping extended partition 6 - beyond reach of IPL

Partition Start(MB) End(MB) Id Type
1               1      31   f0 Palo
2              32     156   83 ext2
5             157    6832   83 ext2

PALO(F0) partition contains:
    0/vmlinux64 5788910 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
Selected ramdisk: /initrd.img from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 3842048 mediaptr 0x1000
Segment 1 load 0050c000 size 344688 mediaptr 0x3ab000
Segment 2 load 00564000 size 131206 mediaptr 0x400000
Loading ramdisk 6346283 bytes @ 279e1000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Linux version 2.6.29-rc8 (mroos@sidrun) (gcc version 4.3.3 (GCC) ) #1 Wed Mar 18 17:30:24 EET 2009
[    0.000000] unwind_init: start = 0x403f5e24, end = 0x4041b804, entries = 9630
[    0.000000] WARNING: Out of order unwind entry! 00000000403f78d4 and 00000000403f78e4
[    0.000000] WARNING: Out of order unwind entry! 00000000403f78e4 and 00000000403f78f4
[    0.000000] FP[0] enabled: Rev 1 Model 16
[    0.000000] The 64-bit Kernel has started...
[    0.000000] console [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00005d60 00000491 00000000 00000001 45800c68 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000300
[    0.000000] CPUID vers 17 rev 10 (0x0000022a)
[    0.000000] capabilities 0x1
[    0.000000] model 9000/800/A400-44
[    0.000000] Total Memory: 640 MB
[    0.000000] initrd: 679e1000-67fee62b
[    0.000000] initrd: reserving 279e1000-27fee62b (mem_max 28000000)
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 161600
[    0.000000] Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
[    0.000000] RCU-based detection of stalled CPUs is enabled.
[    0.000000] PID hash table entries: 4096 (order: 12, 32768 bytes)
[42949372.960000] Console: colour dummy device 160x64
[42949373.090000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
[42949373.110000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
[42949373.320000] Memory: 632320k/655360k available (2491k kernel code, 22732k reserved, 1212k data, 132k init)
[42949373.330000] virtual kernel memory layout:
[42949373.330000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
[42949373.330000]     memory  : 0x0000000040000000 - 0x0000000068000000   ( 640 MB)
[42949373.330000]       .init : 0x0000000040564000 - 0x0000000040585000   ( 132 kB)
[42949373.330000]       .data : 0x000000004036edf0 - 0x000000004049e000   (1212 kB)
[42949373.330000]       .text : 0x0000000040100000 - 0x000000004036edf0   (2491 kB)
[42949373.940000] Calibrating delay loop... 878.18 BogoMIPS (lpj=4390912)
[42949374.210000] Security Framework initialized
[42949374.220000] Mount-cache hash table entries: 256
[42949374.230000] net_namespace: 1856 bytes
[42949374.240000] NET: Registered protocol family 16
[42949374.250000] Searching for devices...
[42949374.380000] Found devices:
[42949374.380000] 1. Crescendo DC- 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5d6, 0x00004 }
[42949374.390000] 2. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x09b, 0x00009 }
[42949374.400000] 3. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
[42949374.400000] 4. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
[42949374.410000] 5. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
[
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         OFF       OFF        ON
LED State: Running non-OS code.  Non-critical error detected.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
 done
[42949376.760000] Freeing initrd memory: 6197k freed
[42949376.760000] Chassis warnings not supported.
[42949376.780000] Performance monitoring counters enabled for Crescendo DC- 440
[42949376.790000] VFS: Disk quotas dquot_6.5.2
[42949376.800000] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[42949376.810000] msgmni has been set to 1247
[42949376.820000] alg: No test for stdrng (krng)
[42949376.830000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[42949376.850000] io scheduler noop registered
[42949376.860000] io scheduler anticipatory registered
[42949376.870000] io scheduler deadline registered
[42949376.870000] io scheduler cfq registered (default)
[42949376.890000] PDC Stable Storage facility v0.30
[42949377.460000] STI GSC/PCI core graphics driver Version 0.9a
[42949377.480000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[42949377.490000] serial 0000:00:04.0: enabling device (0146 -> 0147)
[42949377.510000] 0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 21) is a 16550A
[42949377.520000] console handover: boot [ttyB0] -> real [ttyS0]
[42949377.530000] 0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 21) is a 16550A
[42949377.560000] 0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 21) is a 16550A
[42949377.570000] serial 0000:00:05.0: enabling device (0000 -> 0003)
[42949377.590000] serial 0000:00:05.0: enabling SERR and PARITY (0003 -> 0143)
[42949377.690000] 0000:00:05.0: ttyS3 at MMIO 0xfffffffff8005000 (irq = 22) is a 16550A
[42949377.710000] Couldn't register serial port 0000:00:05.0: -28
[42949377.830000] mice: PS/2 mouse device common for all mice
[42949377.970000] rtc-parisc rtc-parisc: rtc core: registered rtc-parisc as rtc0
[42949377.980000] TCP cubic registered
[42949378.110000] NET: Registered protocol family 17
[42949378.120000] registered taskstats version 1
[42949378.260000] rtc-parisc rtc-parisc: setting system clock to 2009-03-18 23:59:53 UTC (1237420793)
[42949378.270000] Freeing unused kernel memory: 132k freed
[42949378.400000] Write protecting th
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       OFF        ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
[42949379.450000] SCSI subsystem initialized
[42949379.480000] Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
[42949379.490000] tulip 0000:00:00.0: enabling device (0140 -> 0143)
[42949379.510000] tulip0: no phy info, aborting mtable build
[42949379.520000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
[42949379.540000] eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff8006000, 00:30:6e:06:d4:2f, IRQ 17.
[42949379.640000] sym53c8xx 0000:00:01.0: enabling device (0000 -> 0003)
[42949379.660000] sym53c8xx 0000:00:01.0: enabling SERR and PARITY (0003 -> 0143)
[42949379.720000] sym0: <896> rev 0x7 at pci 0000:00:01.0 irq 18
[42949380.180000] sym0: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
[42949380.190000] sym0: SCSI BUS has been reset.
[42949380.200000] scsi0 : sym-2.2.3
[42949387.670000] sym53c8xx 0000:00:01.1: enabling device (0146 -> 0147)
[42949387.730000] sym1: <896> rev 0x7 at pci 0000:00:01.1 irq 19
[42949387.730000] sym1: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
[42949387.750000] sym1: SCSI BUS has been reset.
[42949387.760000] sym1: SCSI BUS mode change from SE to SE.
[42949387.770000] sym1: SCSI BUS has been reset.
[42949387.790000] scsi1 : sym-2.2.3
[42949395.380000] scsi 1:0:15:0: Direct-Access     SEAGATE  ST336704LC       HP01 PQ: 0 ANSI: 3
[42949395.390000] scsi target1:0:15: tagged command queuing enabled, command queue depth 16.
[42949395.410000] scsi target1:0:15: Beginning Domain Validation
[42949395.430000] scsi target1:0:15: asynchronous
[42949395.440000] scsi target1:0:15: wide asynchronous
[42949395.450000] scsi target1:0:15: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 31)
[42949395.460000] scsi target1:0:15: Domain Validation skipping write tests
[42949395.470000] scsi target1:0:15: Ending Domain Validation
[42949395.480000] sym53c8xx 0000:00:02.0: enabling device (0000 -> 0003)
[42949395.490000] sym53c8xx 0000:00:02.0: enabling SERR and PARITY (0003 -> 0143)
[42949395.570000] sym2: <875> rev 0x14 at pci 0000:00:02.0 irq 19
[42949395.750000] sym2: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
[42949395.760000] sym2: SCSI BUS has been reset.
[42949395.800000] scsi2 : sym-2.2.3
[42949403.240000] sym53c8xx 0000:00:02.1: enabling device (0000 -> 0003)
[42949403.250000] sym53c8xx 0000:00:02.1: enabling SERR and PARITY (0003 -> 0143)
[42949403.320000] sym3: <875> rev 0x14 at pci 0000:00:02.1 irq 20
[42949403.410000] sym3: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
[42949403.420000] sym3: SCSI BUS has been reset.
[42949403.430000] scsi3 : sym-2.2.3
[42949410.540000] scsi 3:0:15:0: Direct-Access     SEAGATE  ST336704LC       HP01 PQ: 0 ANSI: 3
[42949410.540000] scsi target3:0:15: tagged command queuing enabled, command queue depth 16.
[42949410.550000] scsi target3:0:15: Beginning Domain Validation
[42949410.580000] scsi target3:0:15: asynchronous
[42949410.590000] scsi target3:0:15: wide asynchronous
[42949410.600000] scsi target3:0:15: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 16)
[42949410.610000] scsi target3:0:15: Domain Validation skipping write tests
[42949410.620000] scsi target3:0:15: Ending Domain Validation
[42949410.700000] Driver 'sd' needs updating - please use bus_type methods
[42949410.720000] sd 1:0:15:0: [sda] 71132960 512-byte hardware sectors: (36.4 GB/33.9 GiB)
[42949410.730000] sd 1:0:15:0: [sda] Write Protect is off
[42949410.740000] sd 1:0:15:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
[42949410.940000] sd 1:0:15:0: [sda] 71132960 512-byte hardware sectors: (36.4 GB/33.9 GiB)
[42949411.010000] sd 1:0:15:0: [sda] Write Protect is off
[42949411.020000] sd 1:0:15:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
[42949411.150000]  sda: sda1 sda2 sda3 < sda5 sda6 sda7 >
[42949411.310000] sd 1:0:15:0: [sda] Attached SCSI disk
[42949411.330000] sd 3:0:15:0: [sdb] 71132960 512-byte hardware sectors: (36.4 GB/33.9 GiB)
[42949411.430000] sd 3:0:15:0: [sdb] Write Protect is off
[42949411.440000] sd 3:0:15:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
[42949411.570000] sd 3:0:15:0: [sdb] 71132960 512-byte hardware sectors: (36.4 GB/33.9 GiB)
[42949411.710000] sd 3:0:15:0: [sdb] Write Protect is off
[42949411.720000] sd 3:0:15:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
[42949411.860000]  sdb: unknown partition table
[42949411.990000] sd 3:0:15:0: [sdb] Attached SCSI disk
done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... done.
WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future releas[42949412.860000] EXT3-fs: INFO: recovery required on readonly filesystem.
e.
[42949412.880000] EXT3-fs: write access will be enabled during recovery.
[42949415.290000] kjournald starting.  Commit interval 5 seconds
[42949415.300000] EXT3-fs: recovery complete.
[42949415.320000] EXT3-fs: mounted filesystem with ordered data mode.
Begin: Running /scripts/local-bottom ... done.
done.
Begin: Running /scripts/init-bottom ... done.
modprobe: WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.

modprobe: WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.

modprobe: WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.

INIT: version 2.86 booting
Starting the hotplug events dispatcher: udevd[42949417.370000] udevd version 125 started
.
Synthesizing the initial hotplug events...done.
Waiting for /dev to be fully populated...done.
Setting parameters of disc: (none).
Setting the system clock.
Activating swap...[42949421.330000] Adding 979924k swap on /dev/sda6.  Priority:-1 extents:1 across:979924k 
done.
Checking root file system...fsck 1.41.3 (12-Oct-2008)
/dev/sda5: clean, 30344/427392 files, 229293/1708906 blocks
done.
[42949421.670000] EXT3 FS on sda5, internal journal
Setting the system clock.
Cleaning up ifupdown....
Loading kernel modules...[42949422.900000] loop: module loaded
done.
Checking file systems...fsck 1.41.3 (12-Oct-2008)
/dev/sda2 was not cleanly unmounted, check forced.
/dev/sda2: |==                                                      |  4.4%   /dev/sda2: |==========                                              / 17.5%   /dev/sda2: |===============                                         - 26.2%   /dev/sda2: |======================                                  \ 39.4%   /dev/sda2: |================================                        | 56.9%   /dev/sda2: |=====================================================   / 94.6%   /dev/sda2: |======================================================= - 97.7%   /dev/sda2: |========================================================| 100.0%                                                                                  /dev/sda2: 24/64256 files (20.8% non-contiguous), 40455/128520 blocks
/dev/sda7: recovering journal
/dev/sda7: clean, 39381/1725136 files, 381924/6895893 blocks
fsck died with exit status 1
done.
Setting kernel variables (/etc/sysctl.conf)...done.
Mounting local filesystems...modprobe: WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.

modprobe: WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.

modprobe: WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.

[42949428.950000] kjournald starting.  Commit interval 5 seconds
[42949428.960000] EXT3 FS on sda7, internal journal
[42949428.960000] EXT3-fs: mounted filesystem with ordered data mode.
done.
Activating swapfile swap...done.
Setting up resolvconf...done.
Setting up networking....
Configuring network interfaces...done.
Setting console screen modes and fonts.
Mounted debugfs on /sys/kernel/debug.
INIT: Entering runlevel: 2
Starting enhanced syslogd: rsyslogd.
Starting OpenBSD Secure Shell server: sshd[42949433.890000] NET: Registered protocol family 10
[42949433.890000] lo: Disabled Privacy Extensions
[42949434.070000] eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.
.
Not starting internet superserver: no services enabled.
Starting openntpd: ntpd.
Starting Postfix Mail Transport Agent: postfix.
Not starting S.M.A.R.T. daemon smartd, disabled via /etc/default/smartmontools (warning).
Setting sysfs variables....
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: crond.

Debian GNU/Linux squeeze/sid sidrun ttyS0

sidrun login: INIT: Switching to runlevel: 6
Stopping deferred execution scheduler: atd.
Stopping internet superserver: inetd.
Stopping openntpd: start-stop-daemon: warning: failed to kill 1344: No such process
ntpd.
Stopping Postfix Mail Transport Agent: postfix.
Stopping rsync daemon: rsync.
Stopping S.M.A.R.T. daemon: smartd.
Unmounted debugfs from /sys/kernel/debug.
Saving the system clock.
Stopping resolvconf...done.
Asking all remaining processes to terminate...[42950046.800000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950046.810000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950046.830000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950046.840000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950046.860000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950046.870000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950046.890000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950046.900000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950046.930000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950046.950000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950047.070000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950047.210000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950047.230000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950047.360000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950047.500000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950047.640000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950047.650000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950047.780000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950047.920000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950047.930000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950048.060000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950048.200000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950048.210000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950048.340000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950048.480000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950048.500000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950048.620000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950048.760000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950048.900000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950048.920000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950049.040000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950049.180000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950049.200000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950049.330000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950049.470000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950049.480000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950049.610000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950049.750000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950049.890000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950049.900000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950050.030000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950050.170000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950050.180000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950050.310000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950050.450000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950050.470000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950050.590000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950050.730000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950050.750000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950050.870000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950051.010000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950051.160000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950051.170000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950051.300000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950051.440000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950051.450000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950051.580000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950051.720000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950051.730000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950051.870000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950052.000000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950052.140000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950052.160000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950052.280000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950052.420000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950052.440000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950052.560000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950052.700000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950052.720000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950052.850000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950052.990000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950053.000000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950053.130000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950053.270000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950053.410000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950053.420000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950053.550000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950053.690000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950053.710000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950053.830000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950053.970000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950053.990000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950054.110000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950054.250000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950054.390000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950054.410000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950054.540000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950054.680000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950054.690000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950054.820000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950054.960000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950054.970000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950055.100000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950055.240000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950055.250000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950055.380000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950055.520000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950055.660000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950055.680000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950055.800000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950055.940000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950055.960000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950056.090000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950056.230000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950056.240000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950056.370000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950056.510000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950056.650000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950056.660000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950056.790000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950056.930000] rsyslogd (pid 1145): Illegal instruction (code 8) at 0000000000071d83
[42950056.930000] INFO: RCU detected CPU 0 stall (t=4295005693/1012 jiffies)
[42950056.930000] Backtrace:
[42950056.930000] Backtrace:
[42950056.930000] 
[42950056.930000] 
[42950056.930000] Bad Address (null pointer deref?): Code=15 regs=0000000063551460 (Addr=c00007ff63551380)
[42950056.930000] 
[42950056.930000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[42950056.93000001101111111100001110 Not tainted
[42950056.930000] r00-03  000000ff0806ff0e 0000000040552100 000000006fc00000 0000000063550f08
[42950056.930000] r04-07  0000000037de0000 ffffffffffe00008 0000000063550f08 0000000040557100
[42950056.930000] r08-11  000000000fc212c1 000000006bc23fd9 0000000040555100 0000000063550578
[42950056.930000] r12-15  0000000040552900 000000004055c100 0000000040556900 0000000000000002
[42950056.930000] r16-19  00000000000000000000001 0000000000000037 0000000063551290
[42950056.930000] r20-23  00000000ffffe000 00000000401165cc 00000000403f6d44 0000000000000010
[42950056.930000] r24-27  0000000000000000 0000000040116500 0000000040116ba0 0000000040552100
[42950056.930000] r28-31  ffffffff63551380 0000000000000350 0000000063551460 ffffffff63551390
[42950056.930000] sr00-03  0000000000001800 0000000000001800 0000000000000000 0000000000002800
[42950056.930000] 00000 0000000000000000 0000000000000000 0000000000000000
[42950056.930000] 
[42950056.930000] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004011f978 000000004011f97c
[42950056.930000]  IIR: 0f8010dc    ISR: 000000003ffff800  IOR: c00007ff63551380
[42950056.930000]  CPU:        0   CR30: 0000000063550000 CR31: 0000000000008020
[42950056.930000]  ORIG_R28: 00000000635513c8
[42950056.930000]  IAOQ[0]: unwind_once+0x358/0x3b8
[42950056 IAOQ[1]: unwind_once+0x35c/0x3b8
[42950056.930000]  RP(r2): 0x6fc00000
[42950056.930000] Backtrace:
[42950056.930000] 
[429500
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       OFF        ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

processor                 system panic               1B00

*****************************************
Invalid choice. Q/q: quit EARLY BOOT VFP
*****************************************

-- 
Meelis Roos (mroos@ut.ee)      http://www.cs.ut.ee/~mroos/
--
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Subject: [PATCH] drivers/parisc: fix warnings
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ccio-dma.c:456: warning: overflow in implicit constant conversion
ccio-dma.c:459: warning: overflow in implicit constant conversion
ccio-dma.c:1032: warning: unused variable 'j'
ccio-dma.c:1031: warning: unused variable 'max'
ccio-dma.c:1031: warning: unused variable 'min'
ccio-dma.c:1031: warning: unused variable 'avg'
ccio-dma.c:1403: warning: format '%08lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
ccio-dma.c:1403: warning: format '%08lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
ccio-dma.c:1554: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
dino.c:822: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
dino.c:822: warning: format '%lx' expects type 'long unsigned int', but argument 5 has type 'resource_size_t'
dino.c:902: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
dino.c:902: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
asp.c:84: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
eisa.c:317: warning: format '%08lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
eisa_enumerator.c:101: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t'
eisa_enumerator.c:101: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
eisa_enumerator.c:191: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t'
eisa_enumerator.c:191: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'


Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---

 drivers/parisc/asp.c             |    2 +-
 drivers/parisc/ccio-dma.c        |   16 ++++++++--------
 drivers/parisc/dino.c            |    7 +++++--
 drivers/parisc/eisa.c            |    2 +-
 drivers/parisc/eisa_enumerator.c |    4 ++--
 5 files changed, 17 insertions(+), 14 deletions(-)

diff --git a/drivers/parisc/asp.c b/drivers/parisc/asp.c
index 7931133..9ca2109 100644
--- a/drivers/parisc/asp.c
+++ b/drivers/parisc/asp.c
@@ -81,7 +81,7 @@ static int __init asp_init_chip(struct parisc_device *dev)
 	asp.hpa = ASP_INTERRUPT_ADDR;
 
 	printk(KERN_INFO "%s version %d at 0x%lx found.\n", 
-		asp.name, asp.version, dev->hpa.start);
+		asp.name, asp.version, (unsigned long)dev->hpa.start);
 
 	/* the IRQ ASP should use */
 	ret = -EBUSY;
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index cd4dd7e..5d610cb 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -406,8 +406,6 @@ resource_found:
 	}
 	ioc->avg_search[ioc->avg_idx++] = cr_start;
 	ioc->avg_idx &= CCIO_SEARCH_SAMPLE - 1;
-#endif
-#ifdef CCIO_COLLECT_STATS
 	ioc->used_pages += pages_needed;
 #endif
 	/* 
@@ -453,10 +451,10 @@ ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped)
 		unsigned long mask = ~(~0UL >> pages_mapped);
 		CCIO_FREE_MAPPINGS(ioc, res_idx, mask, 8);
 #else
-		CCIO_FREE_MAPPINGS(ioc, res_idx, 0xff, 8);
+		CCIO_FREE_MAPPINGS(ioc, res_idx, 0xffUL, 8);
 #endif
 	} else if(pages_mapped <= 16) {
-		CCIO_FREE_MAPPINGS(ioc, res_idx, 0xffff, 16);
+		CCIO_FREE_MAPPINGS(ioc, res_idx, 0xffffUL, 16);
 	} else if(pages_mapped <= 32) {
 		CCIO_FREE_MAPPINGS(ioc, res_idx, ~(unsigned int)0, 32);
 #ifdef __LP64__
@@ -1028,8 +1026,10 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 
 	while (ioc != NULL) {
 		unsigned int total_pages = ioc->res_size << 3;
+#ifdef CCIO_COLLECT_STATS
 		unsigned long avg = 0, min, max;
 		int j;
+#endif
 
 		len += seq_printf(m, "%s\n", ioc->name);
 		
@@ -1060,8 +1060,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 		avg /= CCIO_SEARCH_SAMPLE;
 		len += seq_printf(m, "  Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
 				  min, avg, max);
-#endif
-#ifdef CCIO_COLLECT_STATS
+
 		len += seq_printf(m, "pci_map_single(): %8ld calls  %8ld pages (avg %d/1000)\n",
 				  ioc->msingle_calls, ioc->msingle_pages,
 				  (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
@@ -1400,7 +1399,7 @@ ccio_init_resource(struct resource *res, char *name, void __iomem *ioaddr)
 	result = insert_resource(&iomem_resource, res);
 	if (result < 0) {
 		printk(KERN_ERR "%s() failed to claim CCIO bus address space (%08lx,%08lx)\n", 
-			__func__, res->start, res->end);
+			__func__, (unsigned long)res->start, (unsigned long)res->end);
 	}
 }
 
@@ -1551,7 +1550,8 @@ static int __init ccio_probe(struct parisc_device *dev)
 
 	ioc->name = dev->id.hversion == U2_IOA_RUNWAY ? "U2" : "UTurn";
 
-	printk(KERN_INFO "Found %s at 0x%lx\n", ioc->name, dev->hpa.start);
+	printk(KERN_INFO "Found %s at 0x%lx\n", ioc->name,
+		(unsigned long)dev->hpa.start);
 
 	for (i = 0; i < ioc_count; i++) {
 		ioc_p = &(*ioc_p)->next;
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index bb5a1c9..52ae0b1 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -819,7 +819,9 @@ dino_bridge_init(struct dino_device *dino_dev, const char *name)
 
 		result = ccio_request_resource(dino_dev->hba.dev, &res[i]);
 		if (result < 0) {
-			printk(KERN_ERR "%s: failed to claim PCI Bus address space %d (0x%lx-0x%lx)!\n", name, i, res[i].start, res[i].end);
+			printk(KERN_ERR "%s: failed to claim PCI Bus address "
+			       "space %d (0x%lx-0x%lx)!\n", name, i,
+			       (unsigned long)res[i].start, (unsigned long)res[i].end);
 			return result;
 		}
 	}
@@ -899,7 +901,8 @@ static int __init dino_common_init(struct parisc_device *dev,
 	if (request_resource(&ioport_resource, res) < 0) {
 		printk(KERN_ERR "%s: request I/O Port region failed "
 		       "0x%lx/%lx (hpa 0x%p)\n",
-		       name, res->start, res->end, dino_dev->hba.base_addr);
+		       name, (unsigned long)res->start, (unsigned long)res->end,
+		       dino_dev->hba.base_addr);
 		return 1;
 	}
 
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 7891db5..f415fdd 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -314,7 +314,7 @@ static int __init eisa_probe(struct parisc_device *dev)
 	char *name = is_mongoose(dev) ? "Mongoose" : "Wax";
 
 	printk(KERN_INFO "%s EISA Adapter found at 0x%08lx\n", 
-		name, dev->hpa.start);
+		name, (unsigned long)dev->hpa.start);
 
 	eisa_dev.hba.dev = dev;
 	eisa_dev.hba.iommu = ccio_get_iommu(dev);
diff --git a/drivers/parisc/eisa_enumerator.c b/drivers/parisc/eisa_enumerator.c
index 6d8aae0..c709ecc 100644
--- a/drivers/parisc/eisa_enumerator.c
+++ b/drivers/parisc/eisa_enumerator.c
@@ -98,7 +98,7 @@ static int configure_memory(const unsigned char *buf,
 			res->start = mem_parent->start + get_24(buf+len+2);
 			res->end = res->start + get_16(buf+len+5)*1024;
 			res->flags = IORESOURCE_MEM;
-			printk("memory %lx-%lx ", res->start, res->end);
+			printk("memory %lx-%lx ", (unsigned long)res->start, (unsigned long)res->end);
 			result = request_resource(mem_parent, res);
 			if (result < 0) {
 				printk("\n" KERN_ERR "EISA Enumerator: failed to claim EISA Bus address space!\n");
@@ -188,7 +188,7 @@ static int configure_port(const unsigned char *buf, struct resource *io_parent,
 			res->start = get_16(buf+len+1);
 			res->end = get_16(buf+len+1)+(c&HPEE_PORT_SIZE_MASK)+1;
 			res->flags = IORESOURCE_IO;
-			printk("ioports %lx-%lx ", res->start, res->end);
+			printk("ioports %lx-%lx ", (unsigned long)res->start, (unsigned long)res->end);
 			result = request_resource(io_parent, res);
 			if (result < 0) {
 				printk("\n" KERN_ERR "EISA Enumerator: failed to claim EISA Bus address space!\n");
--
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Subject: [PATCH next 1/2] PARISC: led: remove proc_dir_entry::owner
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proc_dir_entry::owner was removed in 0702c1c1a4
(proc 2/2: remove struct proc_dir_entry::owner)

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---

 drivers/parisc/led.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index 454b653..67bdf20 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -243,13 +243,11 @@ static int __init led_create_procfs(void)
 
 	proc_pdc_root = proc_mkdir("pdc", 0);
 	if (!proc_pdc_root) return -1;
-	proc_pdc_root->owner = THIS_MODULE;
 	ent = create_proc_entry("led", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
 	if (!ent) return -1;
 	ent->data = (void *)LED_NOLCD; /* LED */
 	ent->read_proc = led_proc_read;
 	ent->write_proc = led_proc_write;
-	ent->owner = THIS_MODULE;
 
 	if (led_type == LED_HASLCD)
 	{
@@ -258,7 +256,6 @@ static int __init led_create_procfs(void)
 		ent->data = (void *)LED_HASLCD; /* LCD */
 		ent->read_proc = led_proc_read;
 		ent->write_proc = led_proc_write;
-		ent->owner = THIS_MODULE;
 	}
 
 	return 0;
--
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Subject: [PATCH next 2/2] PARISC: iosapic: fix build breakage
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drivers/parisc/iosapic.c:717: error: incompatible types in assignment

irq_desc::affinity was changed from cpumask_t to cpumask_var_t in
7f7ace0cda (cpumask: update irq_desc to use cpumask_var_t)

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---

 drivers/parisc/iosapic.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 501aaf1..73348c4 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -714,7 +714,7 @@ static void iosapic_set_affinity_irq(unsigned int irq,
 	if (dest_cpu < 0)
 		return;
 
-	irq_desc[irq].affinity = cpumask_of_cpu(dest_cpu);
+	cpumask_copy(irq_desc[irq].affinity, cpumask_of(dest_cpu));
 	vi->txn_addr = txn_affinity_addr(irq, dest_cpu);
 
 	spin_lock_irqsave(&iosapic_lock, flags);

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On Wed, Mar 18, 2009 at 02:55:13PM +0300, Alexander Beregalov wrote:
> ld: arch/parisc/kernel/built-in.o(.text+0xc84): cannot handle
> R_PARISC_PCREL12F for .text

Alexander,
can you post the .config file used for this build?
It would be the easiest way for someone else to reproduce the problem.

thanks,
grant
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2009/3/21 Grant Grundler <grundler@parisc-linux.org>:
> On Wed, Mar 18, 2009 at 02:55:13PM +0300, Alexander Beregalov wrote:
>> ld: arch/parisc/kernel/built-in.o(.text+0xc84): cannot handle
>> R_PARISC_PCREL12F for .text
>
> Alexander,
> can you post the .config file used for this build?
> It would be the easiest way for someone else to reproduce the problem.

Hi

It is in the first mail.
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2009/3/22 David Miller <davem@davemloft.net>:
> From: Alexander Beregalov <a.beregalov@gmail.com>
> Date: Fri, 20 Mar 2009 14:58:38 +0300
>
>> net/phonet/pep.c: In function 'pipe_rcv_status':
>> net/phonet/pep.c:262: error: lvalue required as left operand of assignment
>>
>> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
>
> What platform hits this problem?
>
> I think that platform's atomic_add() implementation should
> be fixed instead.

It is parisc, CC added.
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On Sun, 2009-03-22 at 03:19 +0300, Alexander Beregalov wrote:
> 2009/3/22 David Miller <davem@davemloft.net>:
> > From: Alexander Beregalov <a.beregalov@gmail.com>
> > Date: Fri, 20 Mar 2009 14:58:38 +0300
> >
> >> net/phonet/pep.c: In function 'pipe_rcv_status':
> >> net/phonet/pep.c:262: error: lvalue required as left operand of assignment
> >>
> >> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
> >
> > What platform hits this problem?
> >
> > I think that platform's atomic_add() implementation should
> > be fixed instead.
> 
> It is parisc, CC added.

Looks like a macro argument screw up in atomic.h

This should fix it (uncompiled, of course).

James

---

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index edbfe25..ada3e53 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -25,7 +25,7 @@
  * Since "a" is usually an address, use one spinlock per cacheline.
  */
 #  define ATOMIC_HASH_SIZE 4
-#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) a)/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
 
 extern raw_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 
@@ -222,13 +222,13 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
 
-#define atomic_add(i,v)	((void)(__atomic_add_return( ((int)i),(v))))
-#define atomic_sub(i,v)	((void)(__atomic_add_return(-((int)i),(v))))
+#define atomic_add(i,v)	((void)(__atomic_add_return( ((int)(i)),(v))))
+#define atomic_sub(i,v)	((void)(__atomic_add_return(-((int)(i)),(v))))
 #define atomic_inc(v)	((void)(__atomic_add_return(   1,(v))))
 #define atomic_dec(v)	((void)(__atomic_add_return(  -1,(v))))
 
-#define atomic_add_return(i,v)	(__atomic_add_return( ((int)i),(v)))
-#define atomic_sub_return(i,v)	(__atomic_add_return(-((int)i),(v)))
+#define atomic_add_return(i,v)	(__atomic_add_return( ((int)(i)),(v)))
+#define atomic_sub_return(i,v)	(__atomic_add_return(-((int)(i)),(v)))
 #define atomic_inc_return(v)	(__atomic_add_return(   1,(v)))
 #define atomic_dec_return(v)	(__atomic_add_return(  -1,(v)))
 
@@ -289,13 +289,13 @@ atomic64_read(const atomic64_t *v)
 	return v->counter;
 }
 
-#define atomic64_add(i,v)	((void)(__atomic64_add_return( ((s64)i),(v))))
-#define atomic64_sub(i,v)	((void)(__atomic64_add_return(-((s64)i),(v))))
+#define atomic64_add(i,v)	((void)(__atomic64_add_return( ((s64)(i)),(v))))
+#define atomic64_sub(i,v)	((void)(__atomic64_add_return(-((s64)(i)),(v))))
 #define atomic64_inc(v)		((void)(__atomic64_add_return(   1,(v))))
 #define atomic64_dec(v)		((void)(__atomic64_add_return(  -1,(v))))
 
-#define atomic64_add_return(i,v)	(__atomic64_add_return( ((s64)i),(v)))
-#define atomic64_sub_return(i,v)	(__atomic64_add_return(-((s64)i),(v)))
+#define atomic64_add_return(i,v)	(__atomic64_add_return( ((s64)(i)),(v)))
+#define atomic64_sub_return(i,v)	(__atomic64_add_return(-((s64)(i)),(v)))
 #define atomic64_inc_return(v)		(__atomic64_add_return(   1,(v)))
 #define atomic64_dec_return(v)		(__atomic64_add_return(  -1,(v)))
 


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From - Thu Nov 08 21:03:50 2018
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Cc: Alexander Beregalov <a.beregalov@gmail.com>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Sun, Mar 22, 2009 at 03:58:40AM +0000, James Bottomley wrote:
> > > I think that platform's atomic_add() implementation should
> > > be fixed instead.
> > 
> > It is parisc, CC added.
> 
> Looks like a macro argument screw up in atomic.h
> 
> This should fix it (uncompiled, of course).
> 

Looks correct to me. Applied. Thanks everyone.
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What a tragedy! http://xb.tntbreakingnews.com

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It's awful!! http://dlh.themostrateblog.com

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From - Thu Nov 08 21:03:50 2018
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arch/parisc/kernel/traps.c: In function 'handle_break':
arch/parisc/kernel/traps.c:321: error: 'PARISC_BUG_BREAK_INSN'
undeclared (first use in this function)

# CONFIG_BUG is not set
CONFIG_EMBEDDED=y

Is it a reasonable config?
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From - Thu Nov 08 21:03:50 2018
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On Wed, Mar 25, 2009 at 05:02:21PM +0300, Alexander Beregalov wrote:
> arch/parisc/kernel/traps.c: In function 'handle_break':
> arch/parisc/kernel/traps.c:321: error: 'PARISC_BUG_BREAK_INSN'
> undeclared (first use in this function)
> 
> # CONFIG_BUG is not set
> CONFIG_EMBEDDED=y
> 
> Is it a reasonable config?

imho, no.

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index aacf11d..efac22a 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -12,6 +12,7 @@ config PARISC
 	select RTC_CLASS
 	select RTC_DRV_PARISC
 	select INIT_ALL_POSSIBLE
+	select BUG
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
 	  in many of their workstations & servers (HP9000 700 and 800 series,
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2009/3/18 Alexander Beregalov <a.beregalov@gmail.com>:
> Hi
>
> Ok, I have finally built the kernel, thanks to all.
> Machine has two PA8700 CPUs.
> kernel is 32bit
>
> 2.6.29-rc8-00174-gee568b2:
>
> =C2=A0Freeing unused kernel memory: <0>------------[ cut here ]------=
------
> =C2=A0Badness at kernel/smp.c:329
>
> =C2=A0 =C2=A0 =C2=A0YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> =C2=A0PSW: 00000000000001001111011100001110 Not tainted
> =C2=A0r00-03 =C2=A00004f70e 1058be90 101644f4 10547e90
> =C2=A0r04-07 =C2=A0101004d8 00000000 104eb0e8 101004d8
> =C2=A0r08-11 =C2=A000000000 00000001 10507548 105c3180
> =C2=A0r12-15 =C2=A0ef821430 00000001 ef844090 1053e840
> =C2=A0r16-19 =C2=A0104eae98 105c3180 10541bc0 105c4000
> =C2=A0r20-23 =C2=A000000000 105c4000 00000000 00000001
> =C2=A0r24-27 =C2=A000000000 101004d8 104eb0e8 104eae90
> =C2=A0r28-31 =C2=A00000000e 00000000 ef8242c0 00800480
> =C2=A0sr00-03 =C2=A000000000 00000000 00000000 00000000
> =C2=A0sr04-07 =C2=A000000000 00000000 00000000 00000000
>
> =C2=A0IASQ: 00000000 00000000 IAOQ: 101644c0 101644c4
> =C2=A0IIR: 03ffe01f =C2=A0 =C2=A0ISR: 1024037e =C2=A0IOR: 09024260
> =C2=A0CPU: =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 CR30: ef824000 CR31: 4=
0002008
> =C2=A0ORIG_R28: 00000001
> =C2=A0IAOQ[0]: smp_call_function_many+0x2d4/0x2e0
> =C2=A0IAOQ[1]: smp_call_function_many+0x2d8/0x2e0
> =C2=A0RP(r2): smp_call_function+0x28/0x38
> =C2=A0Backtrace:
> =C2=A0[<101644f4>] smp_call_function+0x28/0x38
> =C2=A0[<105a4e90>] _einittext+0x0/0x10
> =C2=A0[<101644f4>] smp_call_function+0x28/0x38
> =C2=A0[<10142968>] on_each_cpu+0x1c/0x50
> =C2=A0[<10116e64>] free_initmem+0x60/0x1d0
> =C2=A0[<10116624>] init_post+0x1c/0x198
>
> =C2=A0------------[ cut here ]------------
> =C2=A0Badness at kernel/smp.c:226
>
> =C2=A0 =C2=A0 =C2=A0YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> =C2=A0PSW: 00000000000001001111111100001110 Tainted: G =C2=A0 =C2=A0 =
=C2=A0 =C2=A0W
> =C2=A0r00-03 =C2=A00004ff0e 10507e90 101644f4 00000001
> =C2=A0r04-07 =C2=A000000000 101004d8 00000000 105c4000
> =C2=A0r08-11 =C2=A0105a4ea0 105a4e90 10507548 105c3180
> =C2=A0r12-15 =C2=A0ef821430 00000001 ef844090 1053e840
> =C2=A0r16-19 =C2=A0104eae98 105c3180 10541bc0 0000000e
> =C2=A0r20-23 =C2=A000000002 104eb0e8 0000001e 00000001
> =C2=A0r24-27 =C2=A000000000 101004d8 00000001 104eae90
> =C2=A0r28-31 =C2=A0ef824000 00000000 ef8242c0 00000001
> =C2=A0sr00-03 =C2=A000000000 00000000 00000000 00000000
> =C2=A0sr04-07 =C2=A000000000 00000000 00000000 00000000
>
> =C2=A0IASQ: 00000000 00000000 IAOQ: 10164138 1016413c
> =C2=A0IIR: 03ffe01f =C2=A0 =C2=A0ISR: 1024037e =C2=A0IOR: 09024264
> =C2=A0CPU: =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 CR30: ef824000 CR31: 4=
0002008
> =C2=A0ORIG_R28: 00000001
> =C2=A0IAOQ[0]: smp_call_function_single+0xa0/0x154
> =C2=A0IAOQ[1]: smp_call_function_single+0xa4/0x154
> =C2=A0RP(r2): smp_call_function+0x28/0x38
> =C2=A0Backtrace:
> =C2=A0[<101644f4>] smp_call_function+0x28/0x38
> =C2=A0[<1016a6e0>] __irq_set_trigger+0xa4/0xdc
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> =C2=A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
>
> =C2=A0224k freed
>
>
> Kernel continues working after that.
>

Could you please comment?
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From - Thu Nov 08 21:03:51 2018
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Subject: Re: 2.6.29-rc8: Badness at kernel/smp.c:329
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On Mon, Mar 30, 2009 at 5:39 AM, Alexander Beregalov
<a.beregalov@gmail.com> wrote:
>> Kernel continues working after that.
>>
>
> Could you please comment?

AFAIK this is a known issue with the parisc linux kernel startup, but
I might not have been paying attention when Kyle explained the issue.

Kyle?

Cheers,
Carlos.
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On Mon, Mar 30, 2009 at 01:39:55PM +0400, Alexander Beregalov wrote:
> > =A0Freeing unused kernel memory: <0>------------[ cut here ]-------=
-----
> > =A0Badness at kernel/smp.c:329
> >
> > =A0 =A0 =A0YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > =A0PSW: 00000000000001001111011100001110 Not tainted
> > =A0r00-03 =A00004f70e 1058be90 101644f4 10547e90
> > =A0r04-07 =A0101004d8 00000000 104eb0e8 101004d8
> > =A0r08-11 =A000000000 00000001 10507548 105c3180
> > =A0r12-15 =A0ef821430 00000001 ef844090 1053e840
> > =A0r16-19 =A0104eae98 105c3180 10541bc0 105c4000
> > =A0r20-23 =A000000000 105c4000 00000000 00000001
> > =A0r24-27 =A000000000 101004d8 104eb0e8 104eae90
> > =A0r28-31 =A00000000e 00000000 ef8242c0 00800480
> > =A0sr00-03 =A000000000 00000000 00000000 00000000
> > =A0sr04-07 =A000000000 00000000 00000000 00000000
> >
> > =A0IASQ: 00000000 00000000 IAOQ: 101644c0 101644c4
> > =A0IIR: 03ffe01f =A0 =A0ISR: 1024037e =A0IOR: 09024260
> > =A0CPU: =A0 =A0 =A0 =A00 =A0 CR30: ef824000 CR31: 40002008
> > =A0ORIG_R28: 00000001
> > =A0IAOQ[0]: smp_call_function_many+0x2d4/0x2e0
> > =A0IAOQ[1]: smp_call_function_many+0x2d8/0x2e0
> > =A0RP(r2): smp_call_function+0x28/0x38
> > =A0Backtrace:
> > =A0[<101644f4>] smp_call_function+0x28/0x38
> > =A0[<105a4e90>] _einittext+0x0/0x10
> > =A0[<101644f4>] smp_call_function+0x28/0x38
> > =A0[<10142968>] on_each_cpu+0x1c/0x50
> > =A0[<10116e64>] free_initmem+0x60/0x1d0
> > =A0[<10116624>] init_post+0x1c/0x198
> >

this part is expected. (we sent an IPI with interrupts off...)

> > =A0------------[ cut here ]------------
> > =A0Badness at kernel/smp.c:226
> >
> > =A0 =A0 =A0YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > =A0PSW: 00000000000001001111111100001110 Tainted: G =A0 =A0 =A0 =A0=
W
> > =A0r00-03 =A00004ff0e 10507e90 101644f4 00000001
> > =A0r04-07 =A000000000 101004d8 00000000 105c4000
> > =A0r08-11 =A0105a4ea0 105a4e90 10507548 105c3180
> > =A0r12-15 =A0ef821430 00000001 ef844090 1053e840
> > =A0r16-19 =A0104eae98 105c3180 10541bc0 0000000e
> > =A0r20-23 =A000000002 104eb0e8 0000001e 00000001
> > =A0r24-27 =A000000000 101004d8 00000001 104eae90
> > =A0r28-31 =A0ef824000 00000000 ef8242c0 00000001
> > =A0sr00-03 =A000000000 00000000 00000000 00000000
> > =A0sr04-07 =A000000000 00000000 00000000 00000000
> >
> > =A0IASQ: 00000000 00000000 IAOQ: 10164138 1016413c
> > =A0IIR: 03ffe01f =A0 =A0ISR: 1024037e =A0IOR: 09024264
> > =A0CPU: =A0 =A0 =A0 =A00 =A0 CR30: ef824000 CR31: 40002008
> > =A0ORIG_R28: 00000001
> > =A0IAOQ[0]: smp_call_function_single+0xa0/0x154
> > =A0IAOQ[1]: smp_call_function_single+0xa4/0x154
> > =A0RP(r2): smp_call_function+0x28/0x38
> > =A0Backtrace:
> > =A0[<101644f4>] smp_call_function+0x28/0x38
> > =A0[<1016a6e0>] __irq_set_trigger+0xa4/0xdc
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> > =A0[<101642a8>] smp_call_function_many+0xbc/0x2e0
> >

this part is a bug.
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From - Thu Nov 08 21:03:51 2018
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From: AlesD <ales_d@seznam.cz>
Newsgroups: gmane.linux.ports.parisc
Subject: delay in disc detection causes boot failure
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Hello,

  I have installed HP-PA port of Debian 5.0 and got into following problem.

The root filesystem is on SW RAID. At the end of kernel initialization 
comes reset on SCSI bus. After this reset it takes about 6 seconds 
before the attached SCSI disks become "visible" and are detected by 
kernel. The initialization process however goes on and during this 6s it 
tries to assemble the MD device. Since the discs do not exist yet the 
assembly fails and root filesystem is not found. The init script waits 3 
minutes before giving up - which would normaly do the trick if the root 
was directly in one partition. With RAID (and LVM a top of it) the init 
ends with fiasco.

To overcome this I put simple "sleep 30" in the initram scripts - just 
before assembly of the MD device. I understand that this issue is more 
for Debian, but before reporting ther I'd like to ask here:
1) does anyone here know, why there is the reset/delay during boot, and
2) and if message "Driver 'sd' needs updating - please use bus_type 
methods" might have anything to do with this problem.

Thanks in advance Ales Dolecek

Mar 29 08:46:07 czapp005 kernel: imklog 3.18.6, log source = /proc/kmsg 
started.
Mar 29 08:46:07 czapp005 kernel: [    0.000000] Initializing cgroup 
subsys cpu
Mar 29 08:46:07 czapp005 kernel: [    0.000000] Linux version 
2.6.26-1-parisc (Debian 2.6.26-13lenny2) (dannf@debian.org) (gcc version 
4.1.3 20080704 (prerelease) (Debian 4.1.2-25)) #1 Tue Mar 17 13:15:40 
UTC 2009
Mar 29 08:46:07 czapp005 kernel: [    0.000000] FP[0] enabled: Rev 1 
Model 19
Mar 29 08:46:07 czapp005 kernel: [    0.000000] The 32-bit Kernel has 
started...
Mar 29 08:46:07 czapp005 kernel: [    0.000000] console [ttyB0] enabled
Mar 29 08:46:07 czapp005 kernel: [    0.000000] Initialized PDC Console 
for debugging.
Mar 29 08:46:07 czapp005 kernel: [    0.000000] Determining PDC firmware 
type: System Map.
Mar 29 08:46:07 czapp005 kernel: [    0.000000] model 00005dc0 00000481 
00000000 00000002 77d75e12 100000f0 00000008 000000b2 000000b2
Mar 29 08:46:07 czapp005 kernel: [    0.000000] vers  00000203
Mar 29 08:46:07 czapp005 kernel: [    0.000000] CPUID vers 19 rev 7 
(0x00000267)
Mar 29 08:46:07 czapp005 kernel: [    0.000000] capabilities 0x7
Mar 29 08:46:07 czapp005 kernel: [    0.000000] model 9000/785/C3700
Mar 29 08:46:07 czapp005 kernel: [    0.000000] Total Memory: 1024 MB
Mar 29 08:46:07 czapp005 kernel: [    0.000000] initrd: 4f7eb000-4ffee560
Mar 29 08:46:07 czapp005 kernel: [    0.000000] initrd: reserving 
3f7eb000-3ffee560 (mem_max 40000000)
Mar 29 08:46:07 czapp005 kernel: [    0.000000] On node 0 totalpages: 262144
Mar 29 08:46:07 czapp005 kernel: [    0.000000]   Normal zone: 2048 
pages used for memmap
Mar 29 08:46:07 czapp005 kernel: [    0.000000]   Normal zone: 0 pages 
reserved
Mar 29 08:46:07 czapp005 kernel: [    0.000000]   Normal zone: 260096 
pages, LIFO batch:31
Mar 29 08:46:07 czapp005 kernel: [    0.000000]   Movable zone: 0 pages 
used for memmap
Mar 29 08:46:07 czapp005 kernel: [    0.000000] LCD display at 
f05d0008,f05d0000 registered
Mar 29 08:46:07 czapp005 kernel: [    0.000000] Built 1 zonelists in 
Zone order, mobility grouping on.  Total pages: 260096
Mar 29 08:46:07 czapp005 kernel: [    0.000000] Kernel command line: 
root=/dev/mapper/safe-system HOME=/ console=tty0 sti=10/6/2/0 
sti_font=VGA8x16 TERM=linux palo_kernel=3/vmlinux
Mar 29 08:46:07 czapp005 kernel: [    0.000000] PID hash table entries: 
4096 (order: 12, 16384 bytes)
Mar 29 08:46:07 czapp005 kernel: [17179569.184000] Console: colour dummy 
device 160x64
Mar 29 08:46:07 czapp005 kernel: [17179569.192000] console handover: 
boot [ttyB0] -> real [tty0]
Mar 29 08:46:07 czapp005 kernel: [17179569.200000] Dentry cache hash 
table entries: 131072 (order: 7, 524288 bytes)
Mar 29 08:46:07 czapp005 kernel: [17179569.200000] Inode-cache hash 
table entries: 65536 (order: 6, 262144 bytes)
Mar 29 08:46:07 czapp005 kernel: [17179569.248000] Memory: 
1025664k/1048576k available (1961k kernel code, 22704k reserved, 882k 
data, 224k init)
Mar 29 08:46:07 czapp005 kernel: [17179569.248000] virtual kernel memory 
layout:
Mar 29 08:46:07 czapp005 kernel: [17179569.248000]     vmalloc : 
0x00008000 - 0x0f000000   ( 239 MB)
Mar 29 08:46:07 czapp005 kernel: [17179569.248000]     memory  : 
0x10000000 - 0x50000000   (1024 MB)
Mar 29 08:46:07 czapp005 kernel: [17179569.248000]       .init : 
0x10410000 - 0x10448000   ( 224 kB)
Mar 29 08:46:07 czapp005 kernel: [17179569.248000]       .data : 
0x102ea6c0 - 0x103c7000   ( 882 kB)
Mar 29 08:46:07 czapp005 kernel: [17179569.248000]       .text : 
0x10100000 - 0x102ea6c0   (1961 kB)
Mar 29 08:46:07 czapp005 kernel: [17179569.248000] Calibrating delay 
loop... 1495.04 BogoMIPS (lpj=2990080)
Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Security Framework 
initialized
Mar 29 08:46:07 czapp005 kernel: [17179569.340000] SELinux:  Disabled at 
boot.
Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Capability LSM 
initialized
Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Mount-cache hash 
table entries: 512
Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Initializing cgroup 
subsys ns
Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Initializing cgroup 
subsys cpuacct
Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Initializing cgroup 
subsys devices
Mar 29 08:46:07 czapp005 kernel: [17179569.340000] net_namespace: 648 bytes
Mar 29 08:46:07 czapp005 kernel: [17179569.340000] NET: Registered 
protocol family 16
Mar 29 08:46:07 czapp005 kernel: [17179569.340000] EISA bus registered
Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Searching for devices...
Mar 29 08:46:07 czapp005 kernel: [17179569.576000] Found devices:
Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 1. Astro BC Runway 
Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 2. Elroy PCI Bridge 
at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 3. Elroy PCI Bridge 
at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 4. Elroy PCI Bridge 
at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 5. Elroy PCI Bridge 
at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 6. Allegro W2 at 
0xfffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 7. Memory at 
0xfed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
Mar 29 08:46:07 czapp005 kernel: [17179569.576000] Enabling regular 
chassis codes support v0.05
Mar 29 08:46:07 czapp005 kernel: [17179569.708000] CPU(s): 1 x PA8700 
(PCX-W2) at 750.000000 MHz
Mar 29 08:46:07 czapp005 kernel: [17179569.712000] Whole cache flush 
223757 cycles, flushing 3440640 bytes 702747 cycles
Mar 29 08:46:07 czapp005 kernel: [17179569.712000] Setting cache flush 
threshold to 600 (1 CPUs online)
Mar 29 08:46:07 czapp005 kernel: [17179569.736000] SBA found Astro 2.1 
at 0xfed00000
Mar 29 08:46:07 czapp005 kernel: [17179569.736000] Elroy version TR4.0 
(0x5) found at 0xfed30000
Mar 29 08:46:07 czapp005 kernel: [17179569.740000] PCI: Enabled native 
mode for NS87415 (pif=0x8f)
Mar 29 08:46:07 czapp005 kernel: [17179569.744000] Elroy version TR4.0 
(0x5) found at 0xfed32000
Mar 29 08:46:07 czapp005 kernel: [17179569.744000] Elroy version TR4.0 
(0x5) found at 0xfed38000
Mar 29 08:46:07 czapp005 kernel: [17179569.744000] Elroy version TR4.0 
(0x5) found at 0xfed3c000
Mar 29 08:46:07 czapp005 kernel: [17179569.744000] iosapic: hpa not 
registered for 0000:03:02.0
Mar 29 08:46:07 czapp005 kernel: [17179569.752000] powersw: Soft power 
switch at 0xf0400804 enabled.
Mar 29 08:46:07 czapp005 kernel: [17179569.768000] NET: Registered 
protocol family 2
Mar 29 08:46:07 czapp005 kernel: [17179569.804000] IP route cache hash 
table entries: 32768 (order: 5, 131072 bytes)
Mar 29 08:46:07 czapp005 kernel: [17179569.804000] TCP established hash 
table entries: 131072 (order: 8, 1048576 bytes)
Mar 29 08:46:07 czapp005 kernel: [17179569.804000] TCP bind hash table 
entries: 65536 (order: 6, 262144 bytes)
Mar 29 08:46:07 czapp005 kernel: [17179569.804000] TCP: Hash tables 
configured (established 131072 bind 65536)
Mar 29 08:46:07 czapp005 kernel: [17179569.804000] TCP reno registered
Mar 29 08:46:07 czapp005 kernel: [17179569.816000] NET: Registered 
protocol family 1
Mar 29 08:46:07 czapp005 kernel: [17179569.816000] checking if image is 
initramfs... it is
Mar 29 08:46:07 czapp005 kernel: [17179571.536000] Freeing initrd 
memory: 8205k freed
Mar 29 08:46:07 czapp005 kernel: [17179571.536000] Enabling PDC chassis 
warnings support v0.05
Mar 29 08:46:07 czapp005 kernel: [17179571.536000] unwind_init: start = 
0x1035de10, end = 0x103850e0, entries = 10029
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] audit: initializing 
netlink socket (disabled)
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] type=2000 
audit(1238309093.356:1): initialized
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] VFS: Disk quotas 
dquot_6.5.1
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] Dquot-cache hash 
table entries: 1024 (order 0, 4096 bytes)
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] msgmni has been set 
to 2019
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] Block layer SCSI 
generic (bsg) driver version 0.4 loaded (major 254)
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] io scheduler noop 
registered
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] io scheduler 
anticipatory registered
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] io scheduler deadline 
registered
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] io scheduler cfq 
registered (default)
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: Found 
NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 67)
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: Serial port 
1 at 0x3f8
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: Serial port 
2 at 0x2f8
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: Parallel 
port at 0x378
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: Floppy 
controller at 0x3f0
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: ACPI at 0x7e0
Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: USB 
regulator enabled
Mar 29 08:46:07 czapp005 kernel: [17179571.544000] PDC Stable Storage 
facility v0.30
Mar 29 08:46:07 czapp005 kernel: [17179571.872000] STI GSC/PCI core 
graphics driver Version 0.9a
Mar 29 08:46:07 czapp005 kernel: [17179571.872000] STI PCI graphic ROM 
found at f7000000 (2048 kB), fb at fa000000 (32 MB)
Mar 29 08:46:07 czapp005 kernel: [17179571.936000]     id 
35acda30-9a02587, conforms to spec rev. 8.0d
Mar 29 08:46:07 czapp005 kernel: [17179572.068000]     graphics card 
name: A1299B
Mar 29 08:46:07 czapp005 kernel: [17179572.068000] sticon: Initializing 
STI text console.
Mar 29 08:46:07 czapp005 kernel: [17179572.144000] Console: switching to 
colour STI console 128x48
Mar 29 08:46:07 czapp005 kernel: [17179572.224000] stifb: 'A1299B' (id: 
0x35acda30) not supported.
Mar 29 08:46:07 czapp005 kernel: [17179572.232000] Generic RTC Driver v1.07
Mar 29 08:46:07 czapp005 kernel: [17179572.236000] Serial: 8250/16550 
driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
Mar 29 08:46:07 czapp005 kernel: [17179572.240000] serial8250: ttyS0 at 
I/O 0x3f8 (irq = 3) is a 16550A
Mar 29 08:46:07 czapp005 kernel: [17179572.244000] serial8250: ttyS1 at 
I/O 0x2f8 (irq = 4) is a 16550A
Mar 29 08:46:07 czapp005 kernel: [17179572.252000] brd: module loaded
Mar 29 08:46:07 czapp005 kernel: [17179572.256000] mice: PS/2 mouse 
device common for all mice
Mar 29 08:46:07 czapp005 kernel: [17179572.264000] TCP cubic registered
Mar 29 08:46:07 czapp005 kernel: [17179572.268000] NET: Registered 
protocol family 17
Mar 29 08:46:07 czapp005 kernel: [17179572.272000] registered taskstats 
version 1
Mar 29 08:46:07 czapp005 kernel: [17179572.276000] Freeing unused kernel 
memory: 224k freed
Mar 29 08:46:07 czapp005 kernel: [17179572.792000] SCSI subsystem 
initialized
Mar 29 08:46:07 czapp005 kernel: [17179573.876000] Linux Tulip driver 
version 1.1.15-NAPI (Feb 27, 2007)
Mar 29 08:46:07 czapp005 kernel: [17179573.888000] tulip0: no phy info, 
aborting mtable build
Mar 29 08:46:07 czapp005 kernel: [17179573.892000] tulip0:  MII 
transceiver #1 config 1000 status 782d advertising 01e1.
Mar 29 08:46:07 czapp005 kernel: [17179573.904000] eth0: Digital 
DS21142/43 Tulip rev 65 at MMIO 0xf4008000, 00:30:6e:21:ac:1a, IRQ 65.
Mar 29 08:46:07 czapp005 kernel: [17179574.108000] usbcore: registered 
new interface driver usbfs
Mar 29 08:46:07 czapp005 kernel: [17179574.112000] usbcore: registered 
new interface driver hub
Mar 29 08:46:07 czapp005 kernel: [17179574.360000] sym0: <896> rev 0x7 
at pci 0000:00:0f.0 irq 68
Mar 29 08:46:07 czapp005 kernel: [17179574.376000] libata version 3.00 
loaded.
Mar 29 08:46:07 czapp005 kernel: [17179574.388000] usbcore: registered 
new device driver usb
Mar 29 08:46:07 czapp005 kernel: [17179574.400000] ohci_hcd: 2006 August 
04 USB 1.1 'Open' Host Controller (OHCI) Driver
Mar 29 08:46:07 czapp005 kernel: [17179574.400000] ohci_hcd: block 
sizes: ed 64 td 64
Mar 29 08:46:07 czapp005 kernel: [17179574.408000] sym0: PA-RISC 
Firmware, ID 7, Fast-40, SE, parity checking
Mar 29 08:46:07 czapp005 kernel: [17179574.416000] sym0: SCSI BUS has 
been reset.
Mar 29 08:46:07 czapp005 kernel: [17179574.424000] sym0: SCSI BUS mode 
change from SE to SE.
Mar 29 08:46:07 czapp005 kernel: [17179574.432000] sym0: SCSI BUS has 
been reset.
Mar 29 08:46:07 czapp005 kernel: [17179574.436000] scsi0 : sym-2.2.3
Mar 29 08:46:07 czapp005 kernel: [17179574.668000] sym1: <896> rev 0x7 
at pci 0000:00:0f.1 irq 68
Mar 29 08:46:07 czapp005 kernel: [17179574.676000] sym1: PA-RISC 
Firmware, ID 7, Fast-40, LVD, parity checking
Mar 29 08:46:07 czapp005 kernel: [17179574.680000] sym1: SCSI BUS has 
been reset.
Mar 29 08:46:07 czapp005 kernel: [17179574.692000] scsi1 : sym-2.2.3
Mar 29 08:46:07 czapp005 kernel: [17179574.700000] ohci_hcd 
0000:00:0e.2: OHCI Host Controller
Mar 29 08:46:07 czapp005 kernel: [17179574.704000] ohci_hcd 
0000:00:0e.2: new USB bus registered, assigned bus number 1
Mar 29 08:46:07 czapp005 kernel: [17179574.712000] ohci_hcd 
0000:00:0e.2: Using NSC SuperIO setup
Mar 29 08:46:07 czapp005 kernel: [17179574.712000] ohci_hcd 
0000:00:0e.2: created debug files
Mar 29 08:46:07 czapp005 kernel: [17179574.712000] ohci_hcd 
0000:00:0e.2: irq 1, io mem 0xf4007000
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 
0000:00:0e.2: OHCI controller state
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 
0000:00:0e.2: OHCI 1.0, NO legacy support registers
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 
0000:00:0e.2: control 0x083 HCFS=operational CBSR=3
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 
0000:00:0e.2: cmdstatus 0x00000 SOC=0
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 
0000:00:0e.2: intrstatus 0x00000000
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 
0000:00:0e.2: intrenable 0x8000001a MIE UE RD WDH
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 
0000:00:0e.2: hcca frame #0000
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 
0000:00:0e.2: roothub.a 00001003 POTPGT=0 NOCP NDP=3(3)
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 
0000:00:0e.2: roothub.b 000e0000 PPCM=000e DR=0000
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 
0000:00:0e.2: roothub.status 00008000 DRWE
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 
0000:00:0e.2: roothub.portstatus [0] 0x00000100 PPS
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 
0000:00:0e.2: roothub.portstatus [1] 0x00000100 PPS
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 
0000:00:0e.2: roothub.portstatus [2] 0x00000100 PPS
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] usb usb1: default 
language 0x0409
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] usb usb1: uevent
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] usb usb1: 
usb_probe_device
Mar 29 08:46:07 czapp005 kernel: [17179574.772000] usb usb1: 
configuration #1 chosen from 1 choice
Mar 29 08:46:07 czapp005 kernel: [17179574.776000] usb usb1: adding 
1-0:1.0 (config #1, interface 0)
Mar 29 08:46:07 czapp005 kernel: [17179574.776000] usb 1-0:1.0: uevent
Mar 29 08:46:07 czapp005 kernel: [17179574.776000] hub 1-0:1.0: 
usb_probe_interface
Mar 29 08:46:07 czapp005 kernel: [17179574.776000] hub 1-0:1.0: 
usb_probe_interface - got id
Mar 29 08:46:07 czapp005 kernel: [17179574.776000] hub 1-0:1.0: USB hub 
found
Mar 29 08:46:07 czapp005 kernel: [17179574.780000] hub 1-0:1.0: 3 ports 
detected
Mar 29 08:46:07 czapp005 kernel: [17179574.784000] hub 1-0:1.0: 
standalone hub
Mar 29 08:46:07 czapp005 kernel: [17179574.784000] hub 1-0:1.0: ganged 
power switching
Mar 29 08:46:07 czapp005 kernel: [17179574.784000] hub 1-0:1.0: no 
over-current protection
Mar 29 08:46:07 czapp005 kernel: [17179574.784000] hub 1-0:1.0: power on 
to power good time: 0ms
Mar 29 08:46:07 czapp005 kernel: [17179574.784000] hub 1-0:1.0: local 
power source is good
Mar 29 08:46:07 czapp005 kernel: [17179574.784000] hub 1-0:1.0: enabling 
power on all ports
Mar 29 08:46:07 czapp005 kernel: [17179574.888000] usb usb1: New USB 
device found, idVendor=1d6b, idProduct=0001
Mar 29 08:46:07 czapp005 kernel: [17179574.892000] usb usb1: New USB 
device strings: Mfr=3, Product=2, SerialNumber=1
Mar 29 08:46:07 czapp005 kernel: [17179574.896000] usb usb1: Product: 
OHCI Host Controller
Mar 29 08:46:07 czapp005 kernel: [17179574.900000] usb usb1: 
Manufacturer: Linux 2.6.26-1-parisc ohci_hcd
Mar 29 08:46:07 czapp005 kernel: [17179574.904000] usb usb1: 
SerialNumber: 0000:00:0e.2
Mar 29 08:46:07 czapp005 kernel: [17179574.908000] hub 1-0:1.0: state 7 
ports 3 chg 0000 evt 0006
Mar 29 08:46:07 czapp005 kernel: [17179574.908000] ohci_hcd 
0000:00:0e.2: GetStatus roothub.portstatus [0] = 0x00010101 CSC PPS CCS
Mar 29 08:46:07 czapp005 kernel: [17179574.908000] hub 1-0:1.0: port 1, 
status 0101, change 0001, 12 Mb/s
Mar 29 08:46:07 czapp005 kernel: [17179574.932000] Uniform 
Multi-Platform E-IDE driver
Mar 29 08:46:07 czapp005 kernel: [17179574.936000] ide: Assuming 33MHz 
system bus speed for PIO modes; override with idebus=xx
Mar 29 08:46:07 czapp005 kernel: [17179574.948000] NS87415: IDE 
controller (0x100b:0x0002 rev 0x03) at  PCI slot 0000:00:0e.0
Mar 29 08:46:07 czapp005 kernel: [17179574.952000] NS87415: 100% native 
mode on irq 7
Mar 29 08:46:07 czapp005 kernel: [17179574.960000]     ide0: BM-DMA at 
0x0a00-0x0a07
Mar 29 08:46:07 czapp005 kernel: [17179574.964000]     ide1: BM-DMA at 
0x0a08-0x0a0f
Mar 29 08:46:07 czapp005 kernel: [17179574.968000] Probing IDE interface 
ide0...
Mar 29 08:46:07 czapp005 kernel: [17179575.044000] hub 1-0:1.0: 
debounce: port 1: total 100ms stable 100ms status 0x101
Mar 29 08:46:07 czapp005 kernel: [17179575.116000] ohci_hcd 
0000:00:0e.2: GetStatus roothub.portstatus [0] = 0x00100103 PRSC PPS PES CCS
Mar 29 08:46:07 czapp005 kernel: [17179575.172000] usb 1-1: new full 
speed USB device using ohci_hcd and address 2
Mar 29 08:46:07 czapp005 kernel: [17179575.248000] ohci_hcd 
0000:00:0e.2: GetStatus roothub.portstatus [0] = 0x00100103 PRSC PPS PES CCS
Mar 29 08:46:07 czapp005 kernel: [17179575.328000] usb 1-1: default 
language 0x0409
Mar 29 08:46:07 czapp005 kernel: [17179575.336000] usb 1-1: uevent
Mar 29 08:46:07 czapp005 kernel: [17179575.336000] usb 1-1: usb_probe_device
Mar 29 08:46:07 czapp005 kernel: [17179575.336000] usb 1-1: 
configuration #1 chosen from 1 choice
Mar 29 08:46:07 czapp005 kernel: [17179575.340000] usb 1-1: adding 
1-1:1.0 (config #1, interface 0)
Mar 29 08:46:07 czapp005 kernel: [17179575.340000] usb 1-1:1.0: uevent
Mar 29 08:46:07 czapp005 kernel: [17179575.340000] usb 1-1: New USB 
device found, idVendor=1687, idProduct=0163
Mar 29 08:46:07 czapp005 kernel: [17179575.344000] usb 1-1: New USB 
device strings: Mfr=1, Product=2, SerialNumber=3
Mar 29 08:46:07 czapp005 kernel: [17179575.348000] usb 1-1: Product: 
USB2.0 FlashDisk
Mar 29 08:46:07 czapp005 kernel: [17179575.352000] usb 1-1: 
Manufacturer: Kingmax
Mar 29 08:46:07 czapp005 kernel: [17179575.360000] usb 1-1: 
SerialNumber: 020000000001B4
Mar 29 08:46:07 czapp005 kernel: [17179575.364000] ohci_hcd 
0000:00:0e.2: GetStatus roothub.portstatus [1] = 0x00010301 CSC LSDA PPS CCS
Mar 29 08:46:07 czapp005 kernel: [17179575.364000] hub 1-0:1.0: port 2, 
status 0301, change 0001, 1.5 Mb/s
Mar 29 08:46:07 czapp005 kernel: [17179575.372000] hda: FX4830T, ATAPI 
CD/DVD-ROM drive
Mar 29 08:46:07 czapp005 kernel: [17179575.436000] Initializing USB Mass 
Storage driver...
Mar 29 08:46:07 czapp005 kernel: [17179575.492000] hub 1-0:1.0: 
debounce: port 2: total 100ms stable 100ms status 0x301
Mar 29 08:46:07 czapp005 kernel: [17179575.564000] ohci_hcd 
0000:00:0e.2: GetStatus roothub.portstatus [1] = 0x00100303 PRSC LSDA 
PPS PES CCS
Mar 29 08:46:07 czapp005 kernel: [17179575.620000] usb 1-2: new low 
speed USB device using ohci_hcd and address 3
Mar 29 08:46:07 czapp005 kernel: [17179575.696000] ohci_hcd 
0000:00:0e.2: GetStatus roothub.portstatus [1] = 0x00100303 PRSC LSDA 
PPS PES CCS
Mar 29 08:46:07 czapp005 kernel: [17179575.780000] usb 1-2: skipped 1 
descriptor after interface
Mar 29 08:46:07 czapp005 kernel: [17179575.780000] usb 1-2: skipped 1 
descriptor after interface
Mar 29 08:46:07 czapp005 kernel: [17179575.780000] usb 1-2: skipped 1 
descriptor after interface
Mar 29 08:46:07 czapp005 kernel: [17179575.780000] usb 1-2: uevent
Mar 29 08:46:07 czapp005 kernel: [17179575.780000] usb 1-2: usb_probe_device
Mar 29 08:46:07 czapp005 kernel: [17179575.780000] usb 1-2: 
configuration #1 chosen from 1 choice
Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2: adding 
1-2:1.0 (config #1, interface 0)
Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2:1.0: uevent
Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2: adding 
1-2:1.1 (config #1, interface 1)
Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2:1.1: uevent
Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2: adding 
1-2:1.2 (config #1, interface 2)
Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2:1.2: uevent
Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2: New USB 
device found, idVendor=05e3, idProduct=ffe0
Mar 29 08:46:07 czapp005 kernel: [17179575.792000] usb 1-2: New USB 
device strings: Mfr=0, Product=0, SerialNumber=0
Mar 29 08:46:07 czapp005 kernel: [17179575.800000] hub 1-0:1.0: state 7 
ports 3 chg 0000 evt 0004
Mar 29 08:46:07 czapp005 kernel: [17179575.832000] usb-storage 1-1:1.0: 
usb_probe_interface
Mar 29 08:46:07 czapp005 kernel: [17179575.832000] usb-storage 1-1:1.0: 
usb_probe_interface - got id
Mar 29 08:46:07 czapp005 kernel: [17179575.832000] scsi2 : SCSI 
emulation for USB Mass Storage devices
Mar 29 08:46:07 czapp005 kernel: [17179575.836000] usbcore: registered 
new interface driver usb-storage
Mar 29 08:46:07 czapp005 kernel: [17179575.840000] USB Mass Storage 
support registered.
Mar 29 08:46:07 czapp005 kernel: [17179575.848000] usb-storage: device 
found at 2
Mar 29 08:46:07 czapp005 kernel: [17179575.848000] usb-storage: waiting 
for device to settle before scanning
Mar 29 08:46:07 czapp005 kernel: [17179575.956000] usbcore: registered 
new interface driver hiddev
Mar 29 08:46:07 czapp005 kernel: [17179575.960000] usbhid 1-2:1.0: 
usb_probe_interface
Mar 29 08:46:07 czapp005 kernel: [17179575.960000] usbhid 1-2:1.0: 
usb_probe_interface - got id
Mar 29 08:46:07 czapp005 kernel: [17179576.012000] input: HID 05e3:ffe0 
as /class/input/input0
Mar 29 08:46:07 czapp005 kernel: [17179576.028000] input,hidraw0: USB 
HID v1.00 Keyboard [HID 05e3:ffe0] on usb-0000:00:0e.2-2
Mar 29 08:46:07 czapp005 kernel: [17179576.032000] usbhid 1-2:1.1: 
usb_probe_interface
Mar 29 08:46:07 czapp005 kernel: [17179576.032000] usbhid 1-2:1.1: 
usb_probe_interface - got id
Mar 29 08:46:07 czapp005 kernel: [17179576.052000] Probing IDE interface 
ide1...
Mar 29 08:46:07 czapp005 kernel: [17179576.064000] input: HID 05e3:ffe0 
as /class/input/input1
Mar 29 08:46:07 czapp005 kernel: [17179576.080000] input,hidraw1: USB 
HID v1.00 Device [HID 05e3:ffe0] on usb-0000:00:0e.2-2
Mar 29 08:46:07 czapp005 kernel: [17179576.084000] usbhid 1-2:1.2: 
usb_probe_interface
Mar 29 08:46:07 czapp005 kernel: [17179576.084000] usbhid 1-2:1.2: 
usb_probe_interface - got id
Mar 29 08:46:07 czapp005 kernel: [17179576.100000] input: HID 05e3:ffe0 
as /class/input/input2
Mar 29 08:46:07 czapp005 kernel: [17179576.120000] input,hidraw2: USB 
HID v1.00 Mouse [HID 05e3:ffe0] on usb-0000:00:0e.2-2
Mar 29 08:46:07 czapp005 kernel: [17179576.124000] usbcore: registered 
new interface driver usbhid
Mar 29 08:46:07 czapp005 kernel: [17179576.128000] usbhid: v2.6:USB HID 
core driver
Mar 29 08:46:07 czapp005 kernel: [17179576.620000] ide0 at 
0xf00-0xf07,0xe02 on irq 7
Mar 29 08:46:07 czapp005 kernel: [17179576.624000] ide1 at 
0xd00-0xd07,0xb02 on irq 7
Mar 29 08:46:07 czapp005 kernel: [17179576.712000] hda: ATAPI 48X CD-ROM 
drive, 128kB Cache
Mar 29 08:46:07 czapp005 kernel: [17179576.716000] Uniform CD-ROM driver 
Revision: 3.20
Mar 29 08:46:07 czapp005 kernel: [17179579.152000] scsi 1:0:5:0: 
Direct-Access     HP 36.4G ST336706LC       HP03 PQ: 0 ANSI: 2
Mar 29 08:46:07 czapp005 kernel: [17179579.160000]  target1:0:5: tagged 
command queuing enabled, command queue depth 16.
Mar 29 08:46:07 czapp005 kernel: [17179579.164000]  target1:0:5: 
Beginning Domain Validation
Mar 29 08:46:07 czapp005 kernel: [17179579.168000]  target1:0:5: 
asynchronous
Mar 29 08:46:07 czapp005 kernel: [17179579.184000]  target1:0:5: wide 
asynchronous
Mar 29 08:46:07 czapp005 kernel: [17179579.192000]  target1:0:5: FAST-40 
WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
Mar 29 08:46:07 czapp005 kernel: [17179579.200000]  target1:0:5: Domain 
Validation skipping write tests
Mar 29 08:46:07 czapp005 kernel: [17179579.208000]  target1:0:5: Ending 
Domain Validation
Mar 29 08:46:07 czapp005 kernel: [17179579.220000] scsi 1:0:6:0: 
Direct-Access     HP 36.4G ST336706LC       HP03 PQ: 0 ANSI: 2
Mar 29 08:46:07 czapp005 kernel: [17179579.224000]  target1:0:6: tagged 
command queuing enabled, command queue depth 16.
Mar 29 08:46:07 czapp005 kernel: [17179579.228000]  target1:0:6: 
Beginning Domain Validation
Mar 29 08:46:07 czapp005 kernel: [17179579.232000]  target1:0:6: 
asynchronous
Mar 29 08:46:07 czapp005 kernel: [17179579.248000]  target1:0:6: wide 
asynchronous
Mar 29 08:46:07 czapp005 kernel: [17179579.256000]  target1:0:6: FAST-40 
WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
Mar 29 08:46:07 czapp005 kernel: [17179579.268000]  target1:0:6: Domain 
Validation skipping write tests
Mar 29 08:46:07 czapp005 kernel: [17179579.272000]  target1:0:6: Ending 
Domain Validation
Mar 29 08:46:07 czapp005 kernel: [17179580.848000] usb-storage: device 
scan complete
Mar 29 08:46:07 czapp005 kernel: [17179580.852000] scsi 2:0:0:0: 
Direct-Access     Kingmax  USB2.0 FlashDisk 0.00 PQ: 0 ANSI: 2
Mar 29 08:46:07 czapp005 kernel: [17179581.808000] Driver 'sd' needs 
updating - please use bus_type methods
Mar 29 08:46:07 czapp005 kernel: [17179581.840000] sd 1:0:5:0: [sda] 
71132960 512-byte hardware sectors (36420 MB)
Mar 29 08:46:07 czapp005 kernel: [17179581.844000] sd 1:0:5:0: [sda] 
Write Protect is off
Mar 29 08:46:07 czapp005 kernel: [17179581.848000] sd 1:0:5:0: [sda] 
Mode Sense: 9f 00 10 08
Mar 29 08:46:07 czapp005 kernel: [17179581.852000] sd 1:0:5:0: [sda] 
Write cache: enabled, read cache: enabled, supports DPO and FUA
Mar 29 08:46:07 czapp005 kernel: [17179581.856000] sd 1:0:5:0: [sda] 
71132960 512-byte hardware sectors (36420 MB)
Mar 29 08:46:07 czapp005 kernel: [17179581.864000] sd 1:0:5:0: [sda] 
Write Protect is off
Mar 29 08:46:07 czapp005 kernel: [17179581.868000] sd 1:0:5:0: [sda] 
Mode Sense: 9f 00 10 08
Mar 29 08:46:07 czapp005 kernel: [17179581.868000] sd 1:0:5:0: [sda] 
Write cache: enabled, read cache: enabled, supports DPO and FUA
Mar 29 08:46:07 czapp005 kernel: [17179581.876000]  sda: sda1 sda2 sda3 sda4
Mar 29 08:46:07 czapp005 kernel: [17179581.884000] sd 1:0:5:0: [sda] 
Attached SCSI disk
Mar 29 08:46:07 czapp005 kernel: [17179581.900000] sd 1:0:6:0: [sdb] 
71132960 512-byte hardware sectors (36420 MB)
Mar 29 08:46:07 czapp005 kernel: [17179581.908000] sd 1:0:6:0: [sdb] 
Write Protect is off
Mar 29 08:46:07 czapp005 kernel: [17179581.912000] sd 1:0:6:0: [sdb] 
Mode Sense: 9f 00 10 08
Mar 29 08:46:07 czapp005 kernel: [17179581.912000] sd 1:0:6:0: [sdb] 
Write cache: enabled, read cache: enabled, supports DPO and FUA
Mar 29 08:46:07 czapp005 kernel: [17179581.920000] sd 1:0:6:0: [sdb] 
71132960 512-byte hardware sectors (36420 MB)
Mar 29 08:46:07 czapp005 kernel: [17179581.924000] sd 1:0:6:0: [sdb] 
Write Protect is off
Mar 29 08:46:07 czapp005 kernel: [17179581.928000] sd 1:0:6:0: [sdb] 
Mode Sense: 9f 00 10 08
Mar 29 08:46:07 czapp005 kernel: [17179581.932000] sd 1:0:6:0: [sdb] 
Write cache: enabled, read cache: enabled, supports DPO and FUA
Mar 29 08:46:07 czapp005 kernel: [17179581.936000]  sdb: sdb1 sdb2 sdb3 sdb4
Mar 29 08:46:07 czapp005 kernel: [17179581.944000] sd 1:0:6:0: [sdb] 
Attached SCSI disk
Mar 29 08:46:07 czapp005 kernel: [17179581.964000] sd 2:0:0:0: [sdc] 
3948543 512-byte hardware sectors (2022 MB)
Mar 29 08:46:07 czapp005 kernel: [17179581.968000] ohci_hcd 
0000:00:0e.2: urb 4fa4e960 path 1 ep2in 92120000 cc 9 --> status -181
Mar 29 08:46:07 czapp005 kernel: [17179581.972000] sd 2:0:0:0: [sdc] 
Write Protect is off
Mar 29 08:46:07 czapp005 kernel: [17179581.976000] sd 2:0:0:0: [sdc] 
Mode Sense: 00 00 00 00
Mar 29 08:46:07 czapp005 kernel: [17179581.976000] sd 2:0:0:0: [sdc] 
Assuming drive cache: write through
Mar 29 08:46:07 czapp005 kernel: [17179582.004000] sd 2:0:0:0: [sdc] 
3948543 512-byte hardware sectors (2022 MB)
Mar 29 08:46:07 czapp005 kernel: [17179582.008000] ohci_hcd 
0000:00:0e.2: urb 4fa4e960 path 1 ep2in 93120000 cc 9 --> status -181
Mar 29 08:46:07 czapp005 kernel: [17179582.012000] sd 2:0:0:0: [sdc] 
Write Protect is off
Mar 29 08:46:07 czapp005 kernel: [17179582.016000] sd 2:0:0:0: [sdc] 
Mode Sense: 00 00 00 00
Mar 29 08:46:07 czapp005 kernel: [17179582.016000] sd 2:0:0:0: [sdc] 
Assuming drive cache: write through
Mar 29 08:46:07 czapp005 kernel: [17179582.020000]  sdc: unknown 
partition table
Mar 29 08:46:07 czapp005 kernel: [17179582.136000] sd 2:0:0:0: [sdc] 
Attached SCSI removable disk
Mar 29 08:46:07 czapp005 kernel: [17179616.956000] md: raid1 personality 
registered for level 1
Mar 29 08:46:07 czapp005 kernel: [17179617.028000] md: md0 stopped.
Mar 29 08:46:07 czapp005 kernel: [17179617.204000] md: bind<sdb1>
Mar 29 08:46:07 czapp005 kernel: [17179617.208000] md: bind<sda1>
Mar 29 08:46:07 czapp005 kernel: [17179617.256000] raid1: raid set md0 
active with 2 out of 2 mirrors
Mar 29 08:46:07 czapp005 kernel: [17179617.532000] device-mapper: 
uevent: version 1.0.3
Mar 29 08:46:07 czapp005 kernel: [17179617.544000] device-mapper: ioctl: 
4.13.0-ioctl (2007-10-18) initialised: dm-devel@redhat.com
Mar 29 08:46:07 czapp005 kernel: [17179620.184000] kjournald starting.  
Commit interval 5 seconds
Mar 29 08:46:07 czapp005 kernel: [17179620.188000] EXT3-fs: mounted 
filesystem with ordered data mode.
Mar 29 08:46:07 czapp005 kernel: [17179622.040000] udevd version 125 started
Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb usb1: uevent
Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-0:1.0: uevent
Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-1: uevent
Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-1:1.0: uevent
Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-2: uevent
Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-2:1.0: uevent
Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-2:1.1: uevent
Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-2:1.2: uevent
Mar 29 08:46:07 czapp005 kernel: [17179627.072000] Adding 498004k swap 
on /dev/sdb4.  Priority:-1 extents:1 across:498004k
Mar 29 08:46:07 czapp005 kernel: [17179637.300000] EXT3 FS on dm-0, 
internal journal
Mar 29 08:46:07 czapp005 kernel: [17179638.544000] LASI 82596 driver - 
Revision: 1.30
Mar 29 08:46:07 czapp005 kernel: [17179638.588000] loop: module loaded
Mar 29 08:46:07 czapp005 kernel: [17179642.092000] kjournald starting.  
Commit interval 5 seconds
Mar 29 08:46:07 czapp005 kernel: [17179642.096000] EXT3 FS on sda3, 
internal journal
Mar 29 08:46:07 czapp005 kernel: [17179642.100000] EXT3-fs: mounted 
filesystem with ordered data mode.
Mar 29 08:46:07 czapp005 kernel: [17179642.128000] kjournald starting.  
Commit interval 5 seconds
Mar 29 08:46:07 czapp005 kernel: [17179642.152000] EXT3 FS on dm-1, 
internal journal
Mar 29 08:46:07 czapp005 kernel: [17179642.156000] EXT3-fs: mounted 
filesystem with ordered data mode.
Mar 29 08:46:07 czapp005 kernel: [17179642.196000] kjournald starting.  
Commit interval 5 seconds
Mar 29 08:46:07 czapp005 kernel: [17179642.200000] EXT3 FS on dm-2, 
internal journal
Mar 29 08:46:07 czapp005 kernel: [17179642.204000] EXT3-fs: mounted 
filesystem with ordered data mode.
Mar 29 08:46:09 czapp005 kernel: [17179647.156000] eth0: Setting 
full-duplex based on MII#1 link partner capability of 41e1.

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On Mon, Mar 30, 2009 at 09:09:43PM +0200, AlesD wrote:
> Hello,
>
>  I have installed HP-PA port of Debian 5.0 and got into following problem.
>
> The root filesystem is on SW RAID. At the end of kernel initialization 
> comes reset on SCSI bus. After this reset it takes about 6 seconds before 
> the attached SCSI disks become "visible" and are detected by kernel. The 
> initialization process however goes on and during this 6s it tries to 
> assemble the MD device. Since the discs do not exist yet the assembly fails 
> and root filesystem is not found. The init script waits 3 minutes before 
> giving up - which would normaly do the trick if the root was directly in 
> one partition. With RAID (and LVM a top of it) the init ends with fiasco.

Is it possible this is due to a change in how the kernel detects devices?
Have you tried with "scsi_mod.scan=sync" boot time parameter?

drivers/scsi/Kconfig says:
config SCSI_SCAN_ASYNC
        bool "Asynchronous SCSI scanning"
        depends on SCSI
        help
          The SCSI subsystem can probe for devices while the rest of the
          system continues booting, and even probe devices on different
          busses in parallel, leading to a significant speed-up.

          If you have built SCSI as modules, enabling this option can
          be a problem as the devices may not have been found by the
          time your system expects them to have been.  You can load the
          scsi_wait_scan module to ensure that all scans have completed.
          If you build your SCSI drivers into the kernel, then everything
          will work fine if you say Y here.

          You can override this choice by specifying "scsi_mod.scan=sync"
          or async on the kernel's command line.

cheers,
grant

>
> To overcome this I put simple "sleep 30" in the initram scripts - just 
> before assembly of the MD device. I understand that this issue is more for 
> Debian, but before reporting ther I'd like to ask here:
> 1) does anyone here know, why there is the reset/delay during boot, and
> 2) and if message "Driver 'sd' needs updating - please use bus_type 
> methods" might have anything to do with this problem.
>
> Thanks in advance Ales Dolecek
>
> Mar 29 08:46:07 czapp005 kernel: imklog 3.18.6, log source = /proc/kmsg 
> started.
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] Initializing cgroup subsys 
> cpu
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] Linux version 
> 2.6.26-1-parisc (Debian 2.6.26-13lenny2) (dannf@debian.org) (gcc version 
> 4.1.3 20080704 (prerelease) (Debian 4.1.2-25)) #1 Tue Mar 17 13:15:40 UTC 
> 2009
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] FP[0] enabled: Rev 1 Model 
> 19
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] The 32-bit Kernel has 
> started...
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] console [ttyB0] enabled
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] Initialized PDC Console for 
> debugging.
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] Determining PDC firmware 
> type: System Map.
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] model 00005dc0 00000481 
> 00000000 00000002 77d75e12 100000f0 00000008 000000b2 000000b2
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] vers  00000203
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] CPUID vers 19 rev 7 
> (0x00000267)
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] capabilities 0x7
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] model 9000/785/C3700
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] Total Memory: 1024 MB
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] initrd: 4f7eb000-4ffee560
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] initrd: reserving 
> 3f7eb000-3ffee560 (mem_max 40000000)
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] On node 0 totalpages: 
> 262144
> Mar 29 08:46:07 czapp005 kernel: [    0.000000]   Normal zone: 2048 pages 
> used for memmap
> Mar 29 08:46:07 czapp005 kernel: [    0.000000]   Normal zone: 0 pages 
> reserved
> Mar 29 08:46:07 czapp005 kernel: [    0.000000]   Normal zone: 260096 
> pages, LIFO batch:31
> Mar 29 08:46:07 czapp005 kernel: [    0.000000]   Movable zone: 0 pages 
> used for memmap
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] LCD display at 
> f05d0008,f05d0000 registered
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] Built 1 zonelists in Zone 
> order, mobility grouping on.  Total pages: 260096
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] Kernel command line: 
> root=/dev/mapper/safe-system HOME=/ console=tty0 sti=10/6/2/0 
> sti_font=VGA8x16 TERM=linux palo_kernel=3/vmlinux
> Mar 29 08:46:07 czapp005 kernel: [    0.000000] PID hash table entries: 
> 4096 (order: 12, 16384 bytes)
> Mar 29 08:46:07 czapp005 kernel: [17179569.184000] Console: colour dummy 
> device 160x64
> Mar 29 08:46:07 czapp005 kernel: [17179569.192000] console handover: boot 
> [ttyB0] -> real [tty0]
> Mar 29 08:46:07 czapp005 kernel: [17179569.200000] Dentry cache hash table 
> entries: 131072 (order: 7, 524288 bytes)
> Mar 29 08:46:07 czapp005 kernel: [17179569.200000] Inode-cache hash table 
> entries: 65536 (order: 6, 262144 bytes)
> Mar 29 08:46:07 czapp005 kernel: [17179569.248000] Memory: 
> 1025664k/1048576k available (1961k kernel code, 22704k reserved, 882k data, 
> 224k init)
> Mar 29 08:46:07 czapp005 kernel: [17179569.248000] virtual kernel memory 
> layout:
> Mar 29 08:46:07 czapp005 kernel: [17179569.248000]     vmalloc : 0x00008000 
> - 0x0f000000   ( 239 MB)
> Mar 29 08:46:07 czapp005 kernel: [17179569.248000]     memory  : 0x10000000 
> - 0x50000000   (1024 MB)
> Mar 29 08:46:07 czapp005 kernel: [17179569.248000]       .init : 0x10410000 
> - 0x10448000   ( 224 kB)
> Mar 29 08:46:07 czapp005 kernel: [17179569.248000]       .data : 0x102ea6c0 
> - 0x103c7000   ( 882 kB)
> Mar 29 08:46:07 czapp005 kernel: [17179569.248000]       .text : 0x10100000 
> - 0x102ea6c0   (1961 kB)
> Mar 29 08:46:07 czapp005 kernel: [17179569.248000] Calibrating delay 
> loop... 1495.04 BogoMIPS (lpj=2990080)
> Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Security Framework 
> initialized
> Mar 29 08:46:07 czapp005 kernel: [17179569.340000] SELinux:  Disabled at 
> boot.
> Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Capability LSM 
> initialized
> Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Mount-cache hash table 
> entries: 512
> Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Initializing cgroup 
> subsys ns
> Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Initializing cgroup 
> subsys cpuacct
> Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Initializing cgroup 
> subsys devices
> Mar 29 08:46:07 czapp005 kernel: [17179569.340000] net_namespace: 648 bytes
> Mar 29 08:46:07 czapp005 kernel: [17179569.340000] NET: Registered protocol 
> family 16
> Mar 29 08:46:07 czapp005 kernel: [17179569.340000] EISA bus registered
> Mar 29 08:46:07 czapp005 kernel: [17179569.340000] Searching for devices...
> Mar 29 08:46:07 czapp005 kernel: [17179569.576000] Found devices:
> Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 1. Astro BC Runway Port 
> at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
> Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 2. Elroy PCI Bridge at 
> 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
> Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 3. Elroy PCI Bridge at 
> 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
> Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 4. Elroy PCI Bridge at 
> 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
> Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 5. Elroy PCI Bridge at 
> 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
> Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 6. Allegro W2 at 
> 0xfffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
> Mar 29 08:46:07 czapp005 kernel: [17179569.576000] 7. Memory at 0xfed10200 
> [49] { 1, 0x0, 0x09c, 0x00009 }
> Mar 29 08:46:07 czapp005 kernel: [17179569.576000] Enabling regular chassis 
> codes support v0.05
> Mar 29 08:46:07 czapp005 kernel: [17179569.708000] CPU(s): 1 x PA8700 
> (PCX-W2) at 750.000000 MHz
> Mar 29 08:46:07 czapp005 kernel: [17179569.712000] Whole cache flush 223757 
> cycles, flushing 3440640 bytes 702747 cycles
> Mar 29 08:46:07 czapp005 kernel: [17179569.712000] Setting cache flush 
> threshold to 600 (1 CPUs online)
> Mar 29 08:46:07 czapp005 kernel: [17179569.736000] SBA found Astro 2.1 at 
> 0xfed00000
> Mar 29 08:46:07 czapp005 kernel: [17179569.736000] Elroy version TR4.0 
> (0x5) found at 0xfed30000
> Mar 29 08:46:07 czapp005 kernel: [17179569.740000] PCI: Enabled native mode 
> for NS87415 (pif=0x8f)
> Mar 29 08:46:07 czapp005 kernel: [17179569.744000] Elroy version TR4.0 
> (0x5) found at 0xfed32000
> Mar 29 08:46:07 czapp005 kernel: [17179569.744000] Elroy version TR4.0 
> (0x5) found at 0xfed38000
> Mar 29 08:46:07 czapp005 kernel: [17179569.744000] Elroy version TR4.0 
> (0x5) found at 0xfed3c000
> Mar 29 08:46:07 czapp005 kernel: [17179569.744000] iosapic: hpa not 
> registered for 0000:03:02.0
> Mar 29 08:46:07 czapp005 kernel: [17179569.752000] powersw: Soft power 
> switch at 0xf0400804 enabled.
> Mar 29 08:46:07 czapp005 kernel: [17179569.768000] NET: Registered protocol 
> family 2
> Mar 29 08:46:07 czapp005 kernel: [17179569.804000] IP route cache hash 
> table entries: 32768 (order: 5, 131072 bytes)
> Mar 29 08:46:07 czapp005 kernel: [17179569.804000] TCP established hash 
> table entries: 131072 (order: 8, 1048576 bytes)
> Mar 29 08:46:07 czapp005 kernel: [17179569.804000] TCP bind hash table 
> entries: 65536 (order: 6, 262144 bytes)
> Mar 29 08:46:07 czapp005 kernel: [17179569.804000] TCP: Hash tables 
> configured (established 131072 bind 65536)
> Mar 29 08:46:07 czapp005 kernel: [17179569.804000] TCP reno registered
> Mar 29 08:46:07 czapp005 kernel: [17179569.816000] NET: Registered protocol 
> family 1
> Mar 29 08:46:07 czapp005 kernel: [17179569.816000] checking if image is 
> initramfs... it is
> Mar 29 08:46:07 czapp005 kernel: [17179571.536000] Freeing initrd memory: 
> 8205k freed
> Mar 29 08:46:07 czapp005 kernel: [17179571.536000] Enabling PDC chassis 
> warnings support v0.05
> Mar 29 08:46:07 czapp005 kernel: [17179571.536000] unwind_init: start = 
> 0x1035de10, end = 0x103850e0, entries = 10029
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] audit: initializing 
> netlink socket (disabled)
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] type=2000 
> audit(1238309093.356:1): initialized
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] VFS: Disk quotas 
> dquot_6.5.1
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] Dquot-cache hash table 
> entries: 1024 (order 0, 4096 bytes)
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] msgmni has been set to 
> 2019
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] Block layer SCSI generic 
> (bsg) driver version 0.4 loaded (major 254)
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] io scheduler noop 
> registered
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] io scheduler 
> anticipatory registered
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] io scheduler deadline 
> registered
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] io scheduler cfq 
> registered (default)
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: Found NS87560 
> Legacy I/O device at 0000:00:0e.1 (IRQ 67)
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: Serial port 1 
> at 0x3f8
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: Serial port 2 
> at 0x2f8
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: Parallel port 
> at 0x378
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: Floppy 
> controller at 0x3f0
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: ACPI at 0x7e0
> Mar 29 08:46:07 czapp005 kernel: [17179571.540000] SuperIO: USB regulator 
> enabled
> Mar 29 08:46:07 czapp005 kernel: [17179571.544000] PDC Stable Storage 
> facility v0.30
> Mar 29 08:46:07 czapp005 kernel: [17179571.872000] STI GSC/PCI core 
> graphics driver Version 0.9a
> Mar 29 08:46:07 czapp005 kernel: [17179571.872000] STI PCI graphic ROM 
> found at f7000000 (2048 kB), fb at fa000000 (32 MB)
> Mar 29 08:46:07 czapp005 kernel: [17179571.936000]     id 35acda30-9a02587, 
> conforms to spec rev. 8.0d
> Mar 29 08:46:07 czapp005 kernel: [17179572.068000]     graphics card name: 
> A1299B
> Mar 29 08:46:07 czapp005 kernel: [17179572.068000] sticon: Initializing STI 
> text console.
> Mar 29 08:46:07 czapp005 kernel: [17179572.144000] Console: switching to 
> colour STI console 128x48
> Mar 29 08:46:07 czapp005 kernel: [17179572.224000] stifb: 'A1299B' (id: 
> 0x35acda30) not supported.
> Mar 29 08:46:07 czapp005 kernel: [17179572.232000] Generic RTC Driver v1.07
> Mar 29 08:46:07 czapp005 kernel: [17179572.236000] Serial: 8250/16550 
> driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
> Mar 29 08:46:07 czapp005 kernel: [17179572.240000] serial8250: ttyS0 at I/O 
> 0x3f8 (irq = 3) is a 16550A
> Mar 29 08:46:07 czapp005 kernel: [17179572.244000] serial8250: ttyS1 at I/O 
> 0x2f8 (irq = 4) is a 16550A
> Mar 29 08:46:07 czapp005 kernel: [17179572.252000] brd: module loaded
> Mar 29 08:46:07 czapp005 kernel: [17179572.256000] mice: PS/2 mouse device 
> common for all mice
> Mar 29 08:46:07 czapp005 kernel: [17179572.264000] TCP cubic registered
> Mar 29 08:46:07 czapp005 kernel: [17179572.268000] NET: Registered protocol 
> family 17
> Mar 29 08:46:07 czapp005 kernel: [17179572.272000] registered taskstats 
> version 1
> Mar 29 08:46:07 czapp005 kernel: [17179572.276000] Freeing unused kernel 
> memory: 224k freed
> Mar 29 08:46:07 czapp005 kernel: [17179572.792000] SCSI subsystem 
> initialized
> Mar 29 08:46:07 czapp005 kernel: [17179573.876000] Linux Tulip driver 
> version 1.1.15-NAPI (Feb 27, 2007)
> Mar 29 08:46:07 czapp005 kernel: [17179573.888000] tulip0: no phy info, 
> aborting mtable build
> Mar 29 08:46:07 czapp005 kernel: [17179573.892000] tulip0:  MII transceiver 
> #1 config 1000 status 782d advertising 01e1.
> Mar 29 08:46:07 czapp005 kernel: [17179573.904000] eth0: Digital DS21142/43 
> Tulip rev 65 at MMIO 0xf4008000, 00:30:6e:21:ac:1a, IRQ 65.
> Mar 29 08:46:07 czapp005 kernel: [17179574.108000] usbcore: registered new 
> interface driver usbfs
> Mar 29 08:46:07 czapp005 kernel: [17179574.112000] usbcore: registered new 
> interface driver hub
> Mar 29 08:46:07 czapp005 kernel: [17179574.360000] sym0: <896> rev 0x7 at 
> pci 0000:00:0f.0 irq 68
> Mar 29 08:46:07 czapp005 kernel: [17179574.376000] libata version 3.00 
> loaded.
> Mar 29 08:46:07 czapp005 kernel: [17179574.388000] usbcore: registered new 
> device driver usb
> Mar 29 08:46:07 czapp005 kernel: [17179574.400000] ohci_hcd: 2006 August 04 
> USB 1.1 'Open' Host Controller (OHCI) Driver
> Mar 29 08:46:07 czapp005 kernel: [17179574.400000] ohci_hcd: block sizes: 
> ed 64 td 64
> Mar 29 08:46:07 czapp005 kernel: [17179574.408000] sym0: PA-RISC Firmware, 
> ID 7, Fast-40, SE, parity checking
> Mar 29 08:46:07 czapp005 kernel: [17179574.416000] sym0: SCSI BUS has been 
> reset.
> Mar 29 08:46:07 czapp005 kernel: [17179574.424000] sym0: SCSI BUS mode 
> change from SE to SE.
> Mar 29 08:46:07 czapp005 kernel: [17179574.432000] sym0: SCSI BUS has been 
> reset.
> Mar 29 08:46:07 czapp005 kernel: [17179574.436000] scsi0 : sym-2.2.3
> Mar 29 08:46:07 czapp005 kernel: [17179574.668000] sym1: <896> rev 0x7 at 
> pci 0000:00:0f.1 irq 68
> Mar 29 08:46:07 czapp005 kernel: [17179574.676000] sym1: PA-RISC Firmware, 
> ID 7, Fast-40, LVD, parity checking
> Mar 29 08:46:07 czapp005 kernel: [17179574.680000] sym1: SCSI BUS has been 
> reset.
> Mar 29 08:46:07 czapp005 kernel: [17179574.692000] scsi1 : sym-2.2.3
> Mar 29 08:46:07 czapp005 kernel: [17179574.700000] ohci_hcd 0000:00:0e.2: 
> OHCI Host Controller
> Mar 29 08:46:07 czapp005 kernel: [17179574.704000] ohci_hcd 0000:00:0e.2: 
> new USB bus registered, assigned bus number 1
> Mar 29 08:46:07 czapp005 kernel: [17179574.712000] ohci_hcd 0000:00:0e.2: 
> Using NSC SuperIO setup
> Mar 29 08:46:07 czapp005 kernel: [17179574.712000] ohci_hcd 0000:00:0e.2: 
> created debug files
> Mar 29 08:46:07 czapp005 kernel: [17179574.712000] ohci_hcd 0000:00:0e.2: 
> irq 1, io mem 0xf4007000
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 0000:00:0e.2: 
> OHCI controller state
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 0000:00:0e.2: 
> OHCI 1.0, NO legacy support registers
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 0000:00:0e.2: 
> control 0x083 HCFS=operational CBSR=3
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 0000:00:0e.2: 
> cmdstatus 0x00000 SOC=0
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 0000:00:0e.2: 
> intrstatus 0x00000000
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 0000:00:0e.2: 
> intrenable 0x8000001a MIE UE RD WDH
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 0000:00:0e.2: 
> hcca frame #0000
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 0000:00:0e.2: 
> roothub.a 00001003 POTPGT=0 NOCP NDP=3(3)
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 0000:00:0e.2: 
> roothub.b 000e0000 PPCM=000e DR=0000
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 0000:00:0e.2: 
> roothub.status 00008000 DRWE
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 0000:00:0e.2: 
> roothub.portstatus [0] 0x00000100 PPS
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 0000:00:0e.2: 
> roothub.portstatus [1] 0x00000100 PPS
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] ohci_hcd 0000:00:0e.2: 
> roothub.portstatus [2] 0x00000100 PPS
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] usb usb1: default 
> language 0x0409
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] usb usb1: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] usb usb1: 
> usb_probe_device
> Mar 29 08:46:07 czapp005 kernel: [17179574.772000] usb usb1: configuration 
> #1 chosen from 1 choice
> Mar 29 08:46:07 czapp005 kernel: [17179574.776000] usb usb1: adding 1-0:1.0 
> (config #1, interface 0)
> Mar 29 08:46:07 czapp005 kernel: [17179574.776000] usb 1-0:1.0: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179574.776000] hub 1-0:1.0: 
> usb_probe_interface
> Mar 29 08:46:07 czapp005 kernel: [17179574.776000] hub 1-0:1.0: 
> usb_probe_interface - got id
> Mar 29 08:46:07 czapp005 kernel: [17179574.776000] hub 1-0:1.0: USB hub 
> found
> Mar 29 08:46:07 czapp005 kernel: [17179574.780000] hub 1-0:1.0: 3 ports 
> detected
> Mar 29 08:46:07 czapp005 kernel: [17179574.784000] hub 1-0:1.0: standalone 
> hub
> Mar 29 08:46:07 czapp005 kernel: [17179574.784000] hub 1-0:1.0: ganged 
> power switching
> Mar 29 08:46:07 czapp005 kernel: [17179574.784000] hub 1-0:1.0: no 
> over-current protection
> Mar 29 08:46:07 czapp005 kernel: [17179574.784000] hub 1-0:1.0: power on to 
> power good time: 0ms
> Mar 29 08:46:07 czapp005 kernel: [17179574.784000] hub 1-0:1.0: local power 
> source is good
> Mar 29 08:46:07 czapp005 kernel: [17179574.784000] hub 1-0:1.0: enabling 
> power on all ports
> Mar 29 08:46:07 czapp005 kernel: [17179574.888000] usb usb1: New USB device 
> found, idVendor=1d6b, idProduct=0001
> Mar 29 08:46:07 czapp005 kernel: [17179574.892000] usb usb1: New USB device 
> strings: Mfr=3, Product=2, SerialNumber=1
> Mar 29 08:46:07 czapp005 kernel: [17179574.896000] usb usb1: Product: OHCI 
> Host Controller
> Mar 29 08:46:07 czapp005 kernel: [17179574.900000] usb usb1: Manufacturer: 
> Linux 2.6.26-1-parisc ohci_hcd
> Mar 29 08:46:07 czapp005 kernel: [17179574.904000] usb usb1: SerialNumber: 
> 0000:00:0e.2
> Mar 29 08:46:07 czapp005 kernel: [17179574.908000] hub 1-0:1.0: state 7 
> ports 3 chg 0000 evt 0006
> Mar 29 08:46:07 czapp005 kernel: [17179574.908000] ohci_hcd 0000:00:0e.2: 
> GetStatus roothub.portstatus [0] = 0x00010101 CSC PPS CCS
> Mar 29 08:46:07 czapp005 kernel: [17179574.908000] hub 1-0:1.0: port 1, 
> status 0101, change 0001, 12 Mb/s
> Mar 29 08:46:07 czapp005 kernel: [17179574.932000] Uniform Multi-Platform 
> E-IDE driver
> Mar 29 08:46:07 czapp005 kernel: [17179574.936000] ide: Assuming 33MHz 
> system bus speed for PIO modes; override with idebus=xx
> Mar 29 08:46:07 czapp005 kernel: [17179574.948000] NS87415: IDE controller 
> (0x100b:0x0002 rev 0x03) at  PCI slot 0000:00:0e.0
> Mar 29 08:46:07 czapp005 kernel: [17179574.952000] NS87415: 100% native 
> mode on irq 7
> Mar 29 08:46:07 czapp005 kernel: [17179574.960000]     ide0: BM-DMA at 
> 0x0a00-0x0a07
> Mar 29 08:46:07 czapp005 kernel: [17179574.964000]     ide1: BM-DMA at 
> 0x0a08-0x0a0f
> Mar 29 08:46:07 czapp005 kernel: [17179574.968000] Probing IDE interface 
> ide0...
> Mar 29 08:46:07 czapp005 kernel: [17179575.044000] hub 1-0:1.0: debounce: 
> port 1: total 100ms stable 100ms status 0x101
> Mar 29 08:46:07 czapp005 kernel: [17179575.116000] ohci_hcd 0000:00:0e.2: 
> GetStatus roothub.portstatus [0] = 0x00100103 PRSC PPS PES CCS
> Mar 29 08:46:07 czapp005 kernel: [17179575.172000] usb 1-1: new full speed 
> USB device using ohci_hcd and address 2
> Mar 29 08:46:07 czapp005 kernel: [17179575.248000] ohci_hcd 0000:00:0e.2: 
> GetStatus roothub.portstatus [0] = 0x00100103 PRSC PPS PES CCS
> Mar 29 08:46:07 czapp005 kernel: [17179575.328000] usb 1-1: default 
> language 0x0409
> Mar 29 08:46:07 czapp005 kernel: [17179575.336000] usb 1-1: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179575.336000] usb 1-1: 
> usb_probe_device
> Mar 29 08:46:07 czapp005 kernel: [17179575.336000] usb 1-1: configuration 
> #1 chosen from 1 choice
> Mar 29 08:46:07 czapp005 kernel: [17179575.340000] usb 1-1: adding 1-1:1.0 
> (config #1, interface 0)
> Mar 29 08:46:07 czapp005 kernel: [17179575.340000] usb 1-1:1.0: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179575.340000] usb 1-1: New USB device 
> found, idVendor=1687, idProduct=0163
> Mar 29 08:46:07 czapp005 kernel: [17179575.344000] usb 1-1: New USB device 
> strings: Mfr=1, Product=2, SerialNumber=3
> Mar 29 08:46:07 czapp005 kernel: [17179575.348000] usb 1-1: Product: USB2.0 
> FlashDisk
> Mar 29 08:46:07 czapp005 kernel: [17179575.352000] usb 1-1: Manufacturer: 
> Kingmax
> Mar 29 08:46:07 czapp005 kernel: [17179575.360000] usb 1-1: SerialNumber: 
> 020000000001B4
> Mar 29 08:46:07 czapp005 kernel: [17179575.364000] ohci_hcd 0000:00:0e.2: 
> GetStatus roothub.portstatus [1] = 0x00010301 CSC LSDA PPS CCS
> Mar 29 08:46:07 czapp005 kernel: [17179575.364000] hub 1-0:1.0: port 2, 
> status 0301, change 0001, 1.5 Mb/s
> Mar 29 08:46:07 czapp005 kernel: [17179575.372000] hda: FX4830T, ATAPI 
> CD/DVD-ROM drive
> Mar 29 08:46:07 czapp005 kernel: [17179575.436000] Initializing USB Mass 
> Storage driver...
> Mar 29 08:46:07 czapp005 kernel: [17179575.492000] hub 1-0:1.0: debounce: 
> port 2: total 100ms stable 100ms status 0x301
> Mar 29 08:46:07 czapp005 kernel: [17179575.564000] ohci_hcd 0000:00:0e.2: 
> GetStatus roothub.portstatus [1] = 0x00100303 PRSC LSDA PPS PES CCS
> Mar 29 08:46:07 czapp005 kernel: [17179575.620000] usb 1-2: new low speed 
> USB device using ohci_hcd and address 3
> Mar 29 08:46:07 czapp005 kernel: [17179575.696000] ohci_hcd 0000:00:0e.2: 
> GetStatus roothub.portstatus [1] = 0x00100303 PRSC LSDA PPS PES CCS
> Mar 29 08:46:07 czapp005 kernel: [17179575.780000] usb 1-2: skipped 1 
> descriptor after interface
> Mar 29 08:46:07 czapp005 kernel: [17179575.780000] usb 1-2: skipped 1 
> descriptor after interface
> Mar 29 08:46:07 czapp005 kernel: [17179575.780000] usb 1-2: skipped 1 
> descriptor after interface
> Mar 29 08:46:07 czapp005 kernel: [17179575.780000] usb 1-2: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179575.780000] usb 1-2: 
> usb_probe_device
> Mar 29 08:46:07 czapp005 kernel: [17179575.780000] usb 1-2: configuration 
> #1 chosen from 1 choice
> Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2: adding 1-2:1.0 
> (config #1, interface 0)
> Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2:1.0: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2: adding 1-2:1.1 
> (config #1, interface 1)
> Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2:1.1: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2: adding 1-2:1.2 
> (config #1, interface 2)
> Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2:1.2: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179575.788000] usb 1-2: New USB device 
> found, idVendor=05e3, idProduct=ffe0
> Mar 29 08:46:07 czapp005 kernel: [17179575.792000] usb 1-2: New USB device 
> strings: Mfr=0, Product=0, SerialNumber=0
> Mar 29 08:46:07 czapp005 kernel: [17179575.800000] hub 1-0:1.0: state 7 
> ports 3 chg 0000 evt 0004
> Mar 29 08:46:07 czapp005 kernel: [17179575.832000] usb-storage 1-1:1.0: 
> usb_probe_interface
> Mar 29 08:46:07 czapp005 kernel: [17179575.832000] usb-storage 1-1:1.0: 
> usb_probe_interface - got id
> Mar 29 08:46:07 czapp005 kernel: [17179575.832000] scsi2 : SCSI emulation 
> for USB Mass Storage devices
> Mar 29 08:46:07 czapp005 kernel: [17179575.836000] usbcore: registered new 
> interface driver usb-storage
> Mar 29 08:46:07 czapp005 kernel: [17179575.840000] USB Mass Storage support 
> registered.
> Mar 29 08:46:07 czapp005 kernel: [17179575.848000] usb-storage: device 
> found at 2
> Mar 29 08:46:07 czapp005 kernel: [17179575.848000] usb-storage: waiting for 
> device to settle before scanning
> Mar 29 08:46:07 czapp005 kernel: [17179575.956000] usbcore: registered new 
> interface driver hiddev
> Mar 29 08:46:07 czapp005 kernel: [17179575.960000] usbhid 1-2:1.0: 
> usb_probe_interface
> Mar 29 08:46:07 czapp005 kernel: [17179575.960000] usbhid 1-2:1.0: 
> usb_probe_interface - got id
> Mar 29 08:46:07 czapp005 kernel: [17179576.012000] input: HID 05e3:ffe0 as 
> /class/input/input0
> Mar 29 08:46:07 czapp005 kernel: [17179576.028000] input,hidraw0: USB HID 
> v1.00 Keyboard [HID 05e3:ffe0] on usb-0000:00:0e.2-2
> Mar 29 08:46:07 czapp005 kernel: [17179576.032000] usbhid 1-2:1.1: 
> usb_probe_interface
> Mar 29 08:46:07 czapp005 kernel: [17179576.032000] usbhid 1-2:1.1: 
> usb_probe_interface - got id
> Mar 29 08:46:07 czapp005 kernel: [17179576.052000] Probing IDE interface 
> ide1...
> Mar 29 08:46:07 czapp005 kernel: [17179576.064000] input: HID 05e3:ffe0 as 
> /class/input/input1
> Mar 29 08:46:07 czapp005 kernel: [17179576.080000] input,hidraw1: USB HID 
> v1.00 Device [HID 05e3:ffe0] on usb-0000:00:0e.2-2
> Mar 29 08:46:07 czapp005 kernel: [17179576.084000] usbhid 1-2:1.2: 
> usb_probe_interface
> Mar 29 08:46:07 czapp005 kernel: [17179576.084000] usbhid 1-2:1.2: 
> usb_probe_interface - got id
> Mar 29 08:46:07 czapp005 kernel: [17179576.100000] input: HID 05e3:ffe0 as 
> /class/input/input2
> Mar 29 08:46:07 czapp005 kernel: [17179576.120000] input,hidraw2: USB HID 
> v1.00 Mouse [HID 05e3:ffe0] on usb-0000:00:0e.2-2
> Mar 29 08:46:07 czapp005 kernel: [17179576.124000] usbcore: registered new 
> interface driver usbhid
> Mar 29 08:46:07 czapp005 kernel: [17179576.128000] usbhid: v2.6:USB HID 
> core driver
> Mar 29 08:46:07 czapp005 kernel: [17179576.620000] ide0 at 
> 0xf00-0xf07,0xe02 on irq 7
> Mar 29 08:46:07 czapp005 kernel: [17179576.624000] ide1 at 
> 0xd00-0xd07,0xb02 on irq 7
> Mar 29 08:46:07 czapp005 kernel: [17179576.712000] hda: ATAPI 48X CD-ROM 
> drive, 128kB Cache
> Mar 29 08:46:07 czapp005 kernel: [17179576.716000] Uniform CD-ROM driver 
> Revision: 3.20
> Mar 29 08:46:07 czapp005 kernel: [17179579.152000] scsi 1:0:5:0: 
> Direct-Access     HP 36.4G ST336706LC       HP03 PQ: 0 ANSI: 2
> Mar 29 08:46:07 czapp005 kernel: [17179579.160000]  target1:0:5: tagged 
> command queuing enabled, command queue depth 16.
> Mar 29 08:46:07 czapp005 kernel: [17179579.164000]  target1:0:5: Beginning 
> Domain Validation
> Mar 29 08:46:07 czapp005 kernel: [17179579.168000]  target1:0:5: 
> asynchronous
> Mar 29 08:46:07 czapp005 kernel: [17179579.184000]  target1:0:5: wide 
> asynchronous
> Mar 29 08:46:07 czapp005 kernel: [17179579.192000]  target1:0:5: FAST-40 
> WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
> Mar 29 08:46:07 czapp005 kernel: [17179579.200000]  target1:0:5: Domain 
> Validation skipping write tests
> Mar 29 08:46:07 czapp005 kernel: [17179579.208000]  target1:0:5: Ending 
> Domain Validation
> Mar 29 08:46:07 czapp005 kernel: [17179579.220000] scsi 1:0:6:0: 
> Direct-Access     HP 36.4G ST336706LC       HP03 PQ: 0 ANSI: 2
> Mar 29 08:46:07 czapp005 kernel: [17179579.224000]  target1:0:6: tagged 
> command queuing enabled, command queue depth 16.
> Mar 29 08:46:07 czapp005 kernel: [17179579.228000]  target1:0:6: Beginning 
> Domain Validation
> Mar 29 08:46:07 czapp005 kernel: [17179579.232000]  target1:0:6: 
> asynchronous
> Mar 29 08:46:07 czapp005 kernel: [17179579.248000]  target1:0:6: wide 
> asynchronous
> Mar 29 08:46:07 czapp005 kernel: [17179579.256000]  target1:0:6: FAST-40 
> WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
> Mar 29 08:46:07 czapp005 kernel: [17179579.268000]  target1:0:6: Domain 
> Validation skipping write tests
> Mar 29 08:46:07 czapp005 kernel: [17179579.272000]  target1:0:6: Ending 
> Domain Validation
> Mar 29 08:46:07 czapp005 kernel: [17179580.848000] usb-storage: device scan 
> complete
> Mar 29 08:46:07 czapp005 kernel: [17179580.852000] scsi 2:0:0:0: 
> Direct-Access     Kingmax  USB2.0 FlashDisk 0.00 PQ: 0 ANSI: 2
> Mar 29 08:46:07 czapp005 kernel: [17179581.808000] Driver 'sd' needs 
> updating - please use bus_type methods
> Mar 29 08:46:07 czapp005 kernel: [17179581.840000] sd 1:0:5:0: [sda] 
> 71132960 512-byte hardware sectors (36420 MB)
> Mar 29 08:46:07 czapp005 kernel: [17179581.844000] sd 1:0:5:0: [sda] Write 
> Protect is off
> Mar 29 08:46:07 czapp005 kernel: [17179581.848000] sd 1:0:5:0: [sda] Mode 
> Sense: 9f 00 10 08
> Mar 29 08:46:07 czapp005 kernel: [17179581.852000] sd 1:0:5:0: [sda] Write 
> cache: enabled, read cache: enabled, supports DPO and FUA
> Mar 29 08:46:07 czapp005 kernel: [17179581.856000] sd 1:0:5:0: [sda] 
> 71132960 512-byte hardware sectors (36420 MB)
> Mar 29 08:46:07 czapp005 kernel: [17179581.864000] sd 1:0:5:0: [sda] Write 
> Protect is off
> Mar 29 08:46:07 czapp005 kernel: [17179581.868000] sd 1:0:5:0: [sda] Mode 
> Sense: 9f 00 10 08
> Mar 29 08:46:07 czapp005 kernel: [17179581.868000] sd 1:0:5:0: [sda] Write 
> cache: enabled, read cache: enabled, supports DPO and FUA
> Mar 29 08:46:07 czapp005 kernel: [17179581.876000]  sda: sda1 sda2 sda3 
> sda4
> Mar 29 08:46:07 czapp005 kernel: [17179581.884000] sd 1:0:5:0: [sda] 
> Attached SCSI disk
> Mar 29 08:46:07 czapp005 kernel: [17179581.900000] sd 1:0:6:0: [sdb] 
> 71132960 512-byte hardware sectors (36420 MB)
> Mar 29 08:46:07 czapp005 kernel: [17179581.908000] sd 1:0:6:0: [sdb] Write 
> Protect is off
> Mar 29 08:46:07 czapp005 kernel: [17179581.912000] sd 1:0:6:0: [sdb] Mode 
> Sense: 9f 00 10 08
> Mar 29 08:46:07 czapp005 kernel: [17179581.912000] sd 1:0:6:0: [sdb] Write 
> cache: enabled, read cache: enabled, supports DPO and FUA
> Mar 29 08:46:07 czapp005 kernel: [17179581.920000] sd 1:0:6:0: [sdb] 
> 71132960 512-byte hardware sectors (36420 MB)
> Mar 29 08:46:07 czapp005 kernel: [17179581.924000] sd 1:0:6:0: [sdb] Write 
> Protect is off
> Mar 29 08:46:07 czapp005 kernel: [17179581.928000] sd 1:0:6:0: [sdb] Mode 
> Sense: 9f 00 10 08
> Mar 29 08:46:07 czapp005 kernel: [17179581.932000] sd 1:0:6:0: [sdb] Write 
> cache: enabled, read cache: enabled, supports DPO and FUA
> Mar 29 08:46:07 czapp005 kernel: [17179581.936000]  sdb: sdb1 sdb2 sdb3 
> sdb4
> Mar 29 08:46:07 czapp005 kernel: [17179581.944000] sd 1:0:6:0: [sdb] 
> Attached SCSI disk
> Mar 29 08:46:07 czapp005 kernel: [17179581.964000] sd 2:0:0:0: [sdc] 
> 3948543 512-byte hardware sectors (2022 MB)
> Mar 29 08:46:07 czapp005 kernel: [17179581.968000] ohci_hcd 0000:00:0e.2: 
> urb 4fa4e960 path 1 ep2in 92120000 cc 9 --> status -181
> Mar 29 08:46:07 czapp005 kernel: [17179581.972000] sd 2:0:0:0: [sdc] Write 
> Protect is off
> Mar 29 08:46:07 czapp005 kernel: [17179581.976000] sd 2:0:0:0: [sdc] Mode 
> Sense: 00 00 00 00
> Mar 29 08:46:07 czapp005 kernel: [17179581.976000] sd 2:0:0:0: [sdc] 
> Assuming drive cache: write through
> Mar 29 08:46:07 czapp005 kernel: [17179582.004000] sd 2:0:0:0: [sdc] 
> 3948543 512-byte hardware sectors (2022 MB)
> Mar 29 08:46:07 czapp005 kernel: [17179582.008000] ohci_hcd 0000:00:0e.2: 
> urb 4fa4e960 path 1 ep2in 93120000 cc 9 --> status -181
> Mar 29 08:46:07 czapp005 kernel: [17179582.012000] sd 2:0:0:0: [sdc] Write 
> Protect is off
> Mar 29 08:46:07 czapp005 kernel: [17179582.016000] sd 2:0:0:0: [sdc] Mode 
> Sense: 00 00 00 00
> Mar 29 08:46:07 czapp005 kernel: [17179582.016000] sd 2:0:0:0: [sdc] 
> Assuming drive cache: write through
> Mar 29 08:46:07 czapp005 kernel: [17179582.020000]  sdc: unknown partition 
> table
> Mar 29 08:46:07 czapp005 kernel: [17179582.136000] sd 2:0:0:0: [sdc] 
> Attached SCSI removable disk
> Mar 29 08:46:07 czapp005 kernel: [17179616.956000] md: raid1 personality 
> registered for level 1
> Mar 29 08:46:07 czapp005 kernel: [17179617.028000] md: md0 stopped.
> Mar 29 08:46:07 czapp005 kernel: [17179617.204000] md: bind<sdb1>
> Mar 29 08:46:07 czapp005 kernel: [17179617.208000] md: bind<sda1>
> Mar 29 08:46:07 czapp005 kernel: [17179617.256000] raid1: raid set md0 
> active with 2 out of 2 mirrors
> Mar 29 08:46:07 czapp005 kernel: [17179617.532000] device-mapper: uevent: 
> version 1.0.3
> Mar 29 08:46:07 czapp005 kernel: [17179617.544000] device-mapper: ioctl: 
> 4.13.0-ioctl (2007-10-18) initialised: dm-devel@redhat.com
> Mar 29 08:46:07 czapp005 kernel: [17179620.184000] kjournald starting.  
> Commit interval 5 seconds
> Mar 29 08:46:07 czapp005 kernel: [17179620.188000] EXT3-fs: mounted 
> filesystem with ordered data mode.
> Mar 29 08:46:07 czapp005 kernel: [17179622.040000] udevd version 125 
> started
> Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb usb1: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-0:1.0: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-1: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-1:1.0: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-2: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-2:1.0: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-2:1.1: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179622.332000] usb 1-2:1.2: uevent
> Mar 29 08:46:07 czapp005 kernel: [17179627.072000] Adding 498004k swap on 
> /dev/sdb4.  Priority:-1 extents:1 across:498004k
> Mar 29 08:46:07 czapp005 kernel: [17179637.300000] EXT3 FS on dm-0, 
> internal journal
> Mar 29 08:46:07 czapp005 kernel: [17179638.544000] LASI 82596 driver - 
> Revision: 1.30
> Mar 29 08:46:07 czapp005 kernel: [17179638.588000] loop: module loaded
> Mar 29 08:46:07 czapp005 kernel: [17179642.092000] kjournald starting.  
> Commit interval 5 seconds
> Mar 29 08:46:07 czapp005 kernel: [17179642.096000] EXT3 FS on sda3, 
> internal journal
> Mar 29 08:46:07 czapp005 kernel: [17179642.100000] EXT3-fs: mounted 
> filesystem with ordered data mode.
> Mar 29 08:46:07 czapp005 kernel: [17179642.128000] kjournald starting.  
> Commit interval 5 seconds
> Mar 29 08:46:07 czapp005 kernel: [17179642.152000] EXT3 FS on dm-1, 
> internal journal
> Mar 29 08:46:07 czapp005 kernel: [17179642.156000] EXT3-fs: mounted 
> filesystem with ordered data mode.
> Mar 29 08:46:07 czapp005 kernel: [17179642.196000] kjournald starting.  
> Commit interval 5 seconds
> Mar 29 08:46:07 czapp005 kernel: [17179642.200000] EXT3 FS on dm-2, 
> internal journal
> Mar 29 08:46:07 czapp005 kernel: [17179642.204000] EXT3-fs: mounted 
> filesystem with ordered data mode.
> Mar 29 08:46:09 czapp005 kernel: [17179647.156000] eth0: Setting 
> full-duplex based on MII#1 link partner capability of 41e1.
>
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From - Thu Nov 08 21:03:51 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.kernel,gmane.linux.network,gmane.linux.ports.parisc
Subject: Re: [PATCH] Phonet:fix build problem
Date: Mon, 30 Mar 2009 22:41:24 -0400
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References: <20090320115838.GA26371@orion> <20090321.165950.248659848.davem@davemloft.net> <a4423d670903211719m76baeab0k51f054058d6f5134@mail.gmail.com> <1237694320.25297.3.camel@localhost.localdomain> <20090322160629.GA23227@bombadil.infradead.org>
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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On Sun, Mar 22, 2009 at 12:06:29PM -0400, Kyle McMartin wrote:
> On Sun, Mar 22, 2009 at 03:58:40AM +0000, James Bottomley wrote:
> > > > I think that platform's atomic_add() implementation should
> > > > be fixed instead.
> > > 
> > > It is parisc, CC added.
> > 
> > Looks like a macro argument screw up in atomic.h
> > 
> > This should fix it (uncompiled, of course).
> > 
> 
> Looks correct to me. Applied. Thanks everyone.
>

Oh, bah, want to resend that with a sign-off, James?

regards, Kyle

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New commits:
commit 2d6d79bbe589b74c0a6612fc88e4d150f8dfa1e1
Author: Alexander Beregalov <a.beregalov@gmail.com>
Date:   Fri Mar 20 13:00:11 2009 +0300

    parisc: iosapic: fix build breakage
    
    drivers/parisc/iosapic.c:717: error: incompatible types in assignment
    
    irq_desc::affinity was changed from cpumask_t to cpumask_var_t in
    7f7ace0cda (cpumask: update irq_desc to use cpumask_var_t)
    
    Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit c48faf86b0d59cc43ff4eede59c4af7afbd7c0ff
Author: Helge Deller <deller@gmx.de>
Date:   Mon Feb 16 03:03:11 2009 +0000

    parisc: oops_enter()/oops_exit() in die()
    
    As pointed out by Russell in http://marc.info/?l=linux-arch&m=118208089204630&w=2
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit c84c3a698f17ae5d55a6ecc76298fb894e106336
Author: Helge Deller <deller@gmx.de>
Date:   Tue Dec 30 02:47:38 2008 +0000

    parisc: document light weight syscall ABI
    
    Document the LWS ABI including implementation notes for
    userspace, and comment cleanup.
    
    Remove extraneous .align 16 after lws_lock_start.
    
    Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 8a1def457bab9f9654bd4dbb1e3eea6fedd26afa
Author: Helge Deller <deller@gmx.de>
Date:   Tue Jan 6 14:23:13 2009 +0100

    parisc: blink all or loadavg LEDs on oops
    
    - depending on machine type, blink all leds or just the loadavg
      leds twice a second on oops.
    - cancel_rearming_delayed_workqueue() is obsolete,
      use cancel_delayed_work_sync() instead
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit d75f054a2cf0614ff63d534ff21ca8eaab41e713
Author: Helge Deller <deller@gmx.de>
Date:   Mon Feb 9 00:43:36 2009 +0100

    parisc: add ftrace (function and graph tracer) functionality
    
    This patch adds the ftrace debugging functionality to the parisc kernel.
    It will currently only work with 64bit kernels, because the gcc options -pg
    and -ffunction-sections can't be enabled at the same time and -ffunction-sections
    is still needed to be able to link 32bit kernels.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 803094f480aa5b7dd5187a17e6e60ff24721c212
Author: Helge Deller <deller@gmx.de>
Date:   Fri Feb 13 23:58:29 2009 +0100

    parisc: simplify sys_clone()
    
    No need to test clone_flags here and set parent_tidptr and child_tidptr
    accordingly. The same check will be done in do_fork() and copy_process() anyway.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 548f1176f0ac637eff895defb715ce6fde7c460a
Author: Helge Deller <deller@gmx.de>
Date:   Fri Feb 6 21:50:39 2009 +0100

    parisc: add LATENCYTOP_SUPPORT and CONFIG_STACKTRACE_SUPPORT
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit afca2523876301cc6130fc3cc402173eeeb89830
Author: Helge Deller <deller@gmx.de>
Date:   Thu Feb 5 00:06:00 2009 +0100

    parisc: allow to build with 16k default kernel page size
    
    Introduce new convert_for_tlb_insert20 macro and use it to replace assembler
    statements with hardcoded constants.
    This change allows the parisc64 kernel to boot with 16kb default kernel page size,
    aka CONFIG_PARISC_PAGE_SIZE_16KB=y.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 445c088f88d63db49598390be3525252d211688f
Author: Colin Watson <cjwatson@canonical.com>
Date:   Fri Jan 30 01:03:50 2009 +0000

    parisc: expose 32/64-bit capabilities in cpuinfo
    
    It'd be rather useful for debian-installer if we could get hold of
    accurate firmware information on whether only 32-bit kernels are
    supported, only 64-bit kernels, or both; this would allow us to present
    an accurate menu of kernel packages if more than one is available,
    rather than the user having to guess. This patch attempts to expose it
    in cpuinfo.
    
    I adjusted pdc_model_capabilities to cope with a potential
    PDC_INVALID_ARG return as the firmware manual instructs, by assuming
    32-bit only. This may be the wrong place for it.
    
    I made up user-visible capability names by total fiat and for the moment
    ignored the other bits that may appear in the capabilities word.
    
    I have no PA-RISC machine myself to test on, and no PA experience
    either, so I rather hope that somebody will kind-heartedly take this and
    fix it up if needed. I ran it past Dann Frazier on IRC and he said
    "looks good to me", but I think without testing.
    
    Also, this is against the Ubuntu 2.6.28 kernel tree since that's what I
    had handy and I was a bit tight on disk space to slurp down another
    tree. Sorry if it's skewed in any relevant way; I'll be happy to adjust
    if necessary.
    
    Thanks in advance!
    
    Signed-off-by: Colin Watson <cjwatson@canonical.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 1152a68c4226ce48c95241b6ffc543850b4b3a97
Author: Helge Deller <deller@gmx.de>
Date:   Sun Jan 18 19:30:18 2009 +0100

    parisc: use constants instead of numbers in assembly
    
    A few small fixups:
    * _PAGE_SIZE_ENCODING_DEFAULT is wrong here, as one might assume that
      it's possible to define the page size that way. This is wrong. Use 0 instead.
    * use constants instead of hardcoded numerical values in depi and extru
      while building the PFN out of the pte entry
    * use SHRREG instead of extru (iitlba expects the PFN at bits {7..26})
    
    Still wondering why we can use the same register (pte) as extru source
    and target register, but it seems to work on PA1.1 and PA2.0...
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 48d27cb2299c0b2fc4d551bddb6a1005828dc0c6
Author: Helge Deller <deller@gmx.de>
Date:   Sun Jan 18 19:16:16 2009 +0100

    parisc: fix usage of 32bit PTE page table entries on 32bit kernels
    
    This patch fixes a long outstanding bug on 32bit parisc linux kernels
    which prevented us from using 32bit PTE table entries (instead of 64bit
    entries of which 32bit were unused).
    
    The problem was caused by this assembler statement in the L2_ptep
    macro in arch/parisc/kernel/entry.S:447:
    	EXTR \va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
    which expanded to
    	extrw,u r8,9,11,r1
    and which has undefined behavior since the length value (11) extends
    beyond the leftmost bit (11-1 > 9).
    Interestingly PA2.0 processors seem to don't care and just zero-extend
    the value, while PA1.1 processors don't.
    
    Fix this problem by detecting an address space overflow with ASM_BITS_PER_PGD
    and adjusting it accordingly. To prevent such problems in the future,
    some compile time sanity checks in arch/parisc/mm/init.c were added.
    
    Since the page table now only consumes half of it's old size, we can
    use the freed memory to harmonize 32- and 64bit kernels and let both
    map 16MB for the initial page table.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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On Mon, Mar 30, 2009 at 10:06:16PM -0500, James Bottomley wrote:
> On Mon, 2009-03-30 at 22:41 -0400, Kyle McMartin wrote:
> > On Sun, Mar 22, 2009 at 12:06:29PM -0400, Kyle McMartin wrote:
> > > On Sun, Mar 22, 2009 at 03:58:40AM +0000, James Bottomley wrote:
> > > > > > I think that platform's atomic_add() implementation should
> > > > > > be fixed instead.
> > > > > 
> > > > > It is parisc, CC added.
> > > > 
> > > > Looks like a macro argument screw up in atomic.h
> > > > 
> > > > This should fix it (uncompiled, of course).
> > > > 
> > > 
> > > Looks correct to me. Applied. Thanks everyone.
> > >
> > 
> > Oh, bah, want to resend that with a sign-off, James?
> 
> You can add:
> 
> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
>

Thanks! Sorted.

cheers, Kyle
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On Mon, 2009-03-30 at 22:41 -0400, Kyle McMartin wrote:
> On Sun, Mar 22, 2009 at 12:06:29PM -0400, Kyle McMartin wrote:
> > On Sun, Mar 22, 2009 at 03:58:40AM +0000, James Bottomley wrote:
> > > > > I think that platform's atomic_add() implementation should
> > > > > be fixed instead.
> > > > 
> > > > It is parisc, CC added.
> > > 
> > > Looks like a macro argument screw up in atomic.h
> > > 
> > > This should fix it (uncompiled, of course).
> > > 
> > 
> > Looks correct to me. Applied. Thanks everyone.
> >
> 
> Oh, bah, want to resend that with a sign-off, James?

You can add:

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

James


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From - Thu Nov 08 21:03:52 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: delay in disc detection causes boot failure
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To: AlesD <ales_d@seznam.cz>
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2009/3/30 AlesD <ales_d@seznam.cz>:
> Hello,
>
> =C2=A0I have installed HP-PA port of Debian 5.0 and got into followin=
g problem.
>
> The root filesystem is on SW RAID. At the end of kernel initializatio=
n comes
> reset on SCSI bus. After this reset it takes about 6 seconds before t=
he
> attached SCSI disks become "visible" and are detected by kernel. The
> initialization process however goes on and during this 6s it tries to
> assemble the MD device. Since the discs do not exist yet the assembly=
 fails
> and root filesystem is not found. The init script waits 3 minutes bef=
ore
> giving up - which would normaly do the trick if the root was directly=
 in one
> partition. With RAID (and LVM a top of it) the init ends with fiasco.
>
> To overcome this I put simple "sleep 30" in the initram scripts - jus=
t
> before assembly of the MD device. I understand that this issue is mor=
e for
> Debian, but before reporting ther I'd like to ask here:
> 1) does anyone here know, why there is the reset/delay during boot, a=
nd
> 2) and if message "Driver 'sd' needs updating - please use bus_type m=
ethods"
> might have anything to do with this problem.

I've experienced similar problem with root on raid and Debian kernels.
It's definitely a Debian specific issue, afaict.

HTH

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:03:52 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [git] parisc: Changes to ref refs/heads/master
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Kyle McMartin wrote:
> New commits:
> []

Thanks Kyle.

Any chance to get this included as well:
http://patchwork.cabal.ca/patch/261/

It fixes the "make headers_check" (still applies hopefully).

Helge
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.kernel.next,gmane.linux.ports.parisc
Subject: linux-next: manual merge of the tracing tree with the parisc tree
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Hi all,

Today's linux-next merge of the tracing tree got a conflict in
arch/parisc/include/asm/ftrace.h between commit
d75f054a2cf0614ff63d534ff21ca8eaab41e713 ("parisc: add ftrace (function
and graph tracer) functionality") from the parisc tree and commit
c79a61f55773d2519fd0525bf58385f7d20752d3 ("tracing: make CALLER_ADDRx
overwriteable") from the tracing tree.

The former adds a non-trivial version of the file, so I used that.
--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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Newsgroups: gmane.linux.kernel.next,gmane.linux.ports.parisc
Subject: Re: linux-next: manual merge of the tracing tree with the parisc
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Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
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	Helge Deller <deller@gmx.de>, Kyle McMartin <kyle@mcmartin.ca>,
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To: Stephen Rothwell <sfr@canb.auug.org.au>
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Hi Steven,

On Wed, Apr 01, 2009 at 11:37:40AM +1100, Stephen Rothwell wrote:
> Today's linux-next merge of the tracing tree got a conflict in
> arch/parisc/include/asm/ftrace.h between commit
> d75f054a2cf0614ff63d534ff21ca8eaab41e713 ("parisc: add ftrace (functi=
on
> and graph tracer) functionality") from the parisc tree and commit
> c79a61f55773d2519fd0525bf58385f7d20752d3 ("tracing: make CALLER_ADDRx
> overwriteable") from the tracing tree.
Whatever you have done---I didn't check---as long as
arch/parisc/include/asm/ftrace.h exists, it's OK for
c79a61f55773d2519fd0525bf58385f7d20752d3.

Best regards and thanks
Uwe

--=20
Pengutronix e.K.                              | Uwe Kleine-K=F6nig     =
       |
Industrial Linux Solutions                    | http://www.pengutronix.=
de/  |

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FYI - todays 2.6.29+git:

  CC      drivers/parisc/led.o
drivers/parisc/led.c: In function 'led_create_procfs':
drivers/parisc/led.c:246: error: 'struct proc_dir_entry' has no member named 'owner'
drivers/parisc/led.c:252: error: 'struct proc_dir_entry' has no member named 'owner'
drivers/parisc/led.c:261: error: 'struct proc_dir_entry' has no member named 'owner'
make[3]: *** [drivers/parisc/led.o] Error 1

-- 
Meelis Roos (mroos@linux.ee)
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Fixes this build error:
arch/parisc/kernel/pdc_cons.c:117: error: '__PAGE_OFFSET' undeclared
(first use in this function)

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---

 arch/parisc/include/asm/pdc.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index a26e98d..fde8045 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -340,6 +340,7 @@
 #if !defined(__ASSEMBLY__)

 #include <linux/types.h>
+#include <asm/page.h>

 #ifdef __KERNEL__
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2009/4/1 Meelis Roos <mroos@linux.ee>:
> FYI - todays 2.6.29+git:
>
> =C2=A0CC =C2=A0 =C2=A0 =C2=A0drivers/parisc/led.o
> drivers/parisc/led.c: In function 'led_create_procfs':
> drivers/parisc/led.c:246: error: 'struct proc_dir_entry' has no membe=
r named 'owner'
> drivers/parisc/led.c:252: error: 'struct proc_dir_entry' has no membe=
r named 'owner'
> drivers/parisc/led.c:261: error: 'struct proc_dir_entry' has no membe=
r named 'owner'
> make[3]: *** [drivers/parisc/led.o] Error 1

http://patchwork.cabal.ca/patch/544/
this patch should fix it
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* Stephen Rothwell <sfr@canb.auug.org.au> wrote:

> Hi all,
> 
> Today's linux-next merge of the tracing tree got a conflict in
> arch/parisc/include/asm/ftrace.h between commit
> d75f054a2cf0614ff63d534ff21ca8eaab41e713 ("parisc: add ftrace (function
> and graph tracer) functionality") from the parisc tree and commit
> c79a61f55773d2519fd0525bf58385f7d20752d3 ("tracing: make CALLER_ADDRx
> overwriteable") from the tracing tree.
> 
> The former adds a non-trivial version of the file, so I used that.

You need to be careful, the two trees likely cannot be combined like 
that, ftrace will likely stop working on parisc because you combine 
old-parisc with new-ftrace.

If the two trees are integrated without forward-porting the parisc 
ftrace port to the new facilities, then it's safer to do a trivial 
patch that disables the ftrace bits on parisc.

	Ingo

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Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
	Thomas Gleixner <tglx@linutronix.de>,
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To: Ingo Molnar <mingo@elte.hu>
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Hello Ingo,

On Wed, Apr 01, 2009 at 01:05:12PM +0200, Ingo Molnar wrote:
>=20
> * Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>=20
> > Hi all,
> >=20
> > Today's linux-next merge of the tracing tree got a conflict in
> > arch/parisc/include/asm/ftrace.h between commit
> > d75f054a2cf0614ff63d534ff21ca8eaab41e713 ("parisc: add ftrace (func=
tion
> > and graph tracer) functionality") from the parisc tree and commit
> > c79a61f55773d2519fd0525bf58385f7d20752d3 ("tracing: make CALLER_ADD=
Rx
> > overwriteable") from the tracing tree.
> >=20
> > The former adds a non-trivial version of the file, so I used that.
>=20
> You need to be careful, the two trees likely cannot be combined like=20
> that, ftrace will likely stop working on parisc because you combine=20
> old-parisc with new-ftrace.
>=20
> If the two trees are integrated without forward-porting the parisc=20
> ftrace port to the new facilities, then it's safer to do a trivial=20
> patch that disables the ftrace bits on parisc.
I'm not sure that they really conflict.  My change ("tracing: make
CALLER_ADDRx overwriteable") only created the empty include file that I
can unconditionally include <asm/ftrace.h>.

But I don't know for sure.

Best regards
Uwe

--=20
Pengutronix e.K.                              | Uwe Kleine-K=F6nig     =
       |
Industrial Linux Solutions                    | http://www.pengutronix.=
de/  |

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	Helge Deller <deller@gmx.de>, Kyle McMartin <kyle@mcmartin.ca>,
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To: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= 
	<u.kleine-koenig@pengutronix.de>
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* Uwe Kleine-K=F6nig <u.kleine-koenig@pengutronix.de> wrote:

> Hello Ingo,
>=20
> On Wed, Apr 01, 2009 at 01:05:12PM +0200, Ingo Molnar wrote:
> >=20
> > * Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> >=20
> > > Hi all,
> > >=20
> > > Today's linux-next merge of the tracing tree got a conflict in
> > > arch/parisc/include/asm/ftrace.h between commit
> > > d75f054a2cf0614ff63d534ff21ca8eaab41e713 ("parisc: add ftrace (fu=
nction
> > > and graph tracer) functionality") from the parisc tree and commit
> > > c79a61f55773d2519fd0525bf58385f7d20752d3 ("tracing: make CALLER_A=
DDRx
> > > overwriteable") from the tracing tree.
> > >=20
> > > The former adds a non-trivial version of the file, so I used that=
=2E
> >=20
> > You need to be careful, the two trees likely cannot be combined lik=
e=20
> > that, ftrace will likely stop working on parisc because you combine=
=20
> > old-parisc with new-ftrace.
> >=20
> > If the two trees are integrated without forward-porting the parisc=20
> > ftrace port to the new facilities, then it's safer to do a trivial=20
> > patch that disables the ftrace bits on parisc.
>
> I'm not sure that they really conflict.  My change ("tracing: make=20
> CALLER_ADDRx overwriteable") only created the empty include file=20
> that I can unconditionally include <asm/ftrace.h>.

I know, that commit is not a problem. It just exposed the problem=20
that these trees got combined in linux-next.

	Ingo

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To: Alexander Beregalov <a.beregalov@gmail.com>
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On Wed, Apr 01, 2009 at 01:44:08PM +0400, Alexander Beregalov wrote:
> Fixes this build error:
> arch/parisc/kernel/pdc_cons.c:117: error: '__PAGE_OFFSET' undeclared
> (first use in this function)
> 
> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>

Huh. Nice. More patches to arch/parisc that didn't go through me that
break things.

Applied, thanks again Alexander.

cheers, Kyle

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2009/4/1 Kyle McMartin <kyle@mcmartin.ca>:
> On Wed, Apr 01, 2009 at 01:44:08PM +0400, Alexander Beregalov wrote:
>> Fixes this build error:
>> arch/parisc/kernel/pdc_cons.c:117: error: '__PAGE_OFFSET' undeclared
>> (first use in this function)
>>
>> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
>
> Huh. Nice. More patches to arch/parisc that didn't go through me that
> break things.
>
> Applied, thanks again Alexander.

Hi Kyle

Actually the patch does not fix build. It fails with message
"asm-parisc/page.h is not exported".
I do not know what it means.
Should we include page.h in pdc_cons.c instead of pdc.h ?
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On Wed, Apr 01, 2009 at 07:06:41PM +0400, Alexander Beregalov wrote:
> 2009/4/1 Kyle McMartin <kyle@mcmartin.ca>:
> > On Wed, Apr 01, 2009 at 01:44:08PM +0400, Alexander Beregalov wrote:
> >> Fixes this build error:
> >> arch/parisc/kernel/pdc_cons.c:117: error: '__PAGE_OFFSET' undeclared
> >> (first use in this function)
> >>
> >> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
> >
> > Huh. Nice. More patches to arch/parisc that didn't go through me that
> > break things.
> >
> > Applied, thanks again Alexander.
> 
> Hi Kyle
> 
> Actually the patch does not fix build. It fails with message
> "asm-parisc/page.h is not exported".
> I do not know what it means.
> Should we include page.h in pdc_cons.c instead of pdc.h ?
> 

Ah, the <asm/page.h> include needs to be inside __KERNEL__.

Care to resend?

cheers, Kyle

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From: Alexander Beregalov <a.beregalov@gmail.com>
Subject: [PATCH] parisc: asm/pdc.h should include asm/page.h

Fixes this build error:
arch/parisc/kernel/pdc_cons.c:117: error: '__PAGE_OFFSET' undeclared

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---

 arch/parisc/include/asm/pdc.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index a26e98d..90d6973 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -343,6 +343,8 @@

 #ifdef __KERNEL__

+#include <asm/page.h> /* for __PAGE_OFFSET */
+
 extern int pdc_type;

 /* Values for pdc_type */
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From: Alexander Beregalov <a.beregalov@gmail.com>
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2009/3/25 Kyle McMartin <kyle@mcmartin.ca>:
> On Wed, Mar 25, 2009 at 05:02:21PM +0300, Alexander Beregalov wrote:
>> arch/parisc/kernel/traps.c: In function 'handle_break':
>> arch/parisc/kernel/traps.c:321: error: 'PARISC_BUG_BREAK_INSN'
>> undeclared (first use in this function)
>>
>> # CONFIG_BUG is not set
>> CONFIG_EMBEDDED=3Dy
>>
>> Is it a reasonable config?
>
> imho, no.
>
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index aacf11d..efac22a 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -12,6 +12,7 @@ config PARISC
> =C2=A0 =C2=A0 =C2=A0 =C2=A0select RTC_CLASS
> =C2=A0 =C2=A0 =C2=A0 =C2=A0select RTC_DRV_PARISC
> =C2=A0 =C2=A0 =C2=A0 =C2=A0select INIT_ALL_POSSIBLE
> + =C2=A0 =C2=A0 =C2=A0 select BUG
> =C2=A0 =C2=A0 =C2=A0 =C2=A0help
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0The PA-RISC microprocessor is desig=
ned by Hewlett-Packard and used
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0in many of their workstations & ser=
vers (HP9000 700 and 800 series,
>
It still fails.
Could you please add it to your branch.
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From - Thu Nov 08 21:03:53 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.next
Subject: Re: linux-next: manual merge of the tracing tree with the parisc
	tree
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Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
	"H. Peter Anvin" <hpa@zytor.com>, linux-next@vger.kernel.org,
	Helge Deller <deller@gmx.de>, Kyle McMartin <kyle@mcmartin.ca>,
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To: Stephen Rothwell <sfr@canb.auug.org.au>
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On Wed, Apr 01, 2009 at 11:37:40AM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> Today's linux-next merge of the tracing tree got a conflict in
> arch/parisc/include/asm/ftrace.h between commit
> d75f054a2cf0614ff63d534ff21ca8eaab41e713 ("parisc: add ftrace (function
> and graph tracer) functionality") from the parisc tree and commit
> c79a61f55773d2519fd0525bf58385f7d20752d3 ("tracing: make CALLER_ADDRx
> overwriteable") from the tracing tree.
> 
> The former adds a non-trivial version of the file, so I used that.
>

Thanks Stephen,

What's the optimal way to sort out multiple branches in this tree?
Apparently Andrew is cross with me because the rtc-parisc branch didn't
get picked up... Should I put a list of branches in my kernel.org
public_html or something?

r, Kyle
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On Wed, Apr 01, 2009 at 07:43:40PM +0400, Alexander Beregalov wrote:
> From: Alexander Beregalov <a.beregalov@gmail.com>
> Subject: [PATCH] parisc: asm/pdc.h should include asm/page.h
> 
> Fixes this build error:
> arch/parisc/kernel/pdc_cons.c:117: error: '__PAGE_OFFSET' undeclared
> 
> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>

Thanks, applied.
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On Wed, Apr 01, 2009 at 08:42:31PM +0400, Alexander Beregalov wrote:
> It still fails.
> Could you please add it to your branch.
> 

I was hoping someone would confirm the patch worked, or tell me I'm an
idiot or something... ;-)

Applied.
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New commits:
commit 1ab2eaa2c16c2467bbd94514ec6c1fe5129546c7
Author: Alexander Beregalov <a.beregalov@gmail.com>
Date:   Fri Mar 20 14:55:50 2009 +0000

    parisc: led: remove proc_dir_entry::owner
    
    proc_dir_entry::owner was removed in 0702c1c1a4
    (proc 2/2: remove struct proc_dir_entry::owner)
    
    Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 47e669ce10901dc92960096653d6b22990b5188f
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date:   Sun Mar 22 03:58:40 2009 +0000

    parisc: fix macro expansion in atomic.h
    
    Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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New commits:
commit d845e1fbf2d48f6556fbfae7ec04adf67ab14bca
Author: Alexander Beregalov <a.beregalov@gmail.com>
Date:   Wed Apr 1 15:43:40 2009 +0000

    parisc: asm/pdc.h should include asm/page.h
    
    Fixes this build error:
    arch/parisc/kernel/pdc_cons.c:117: error: '__PAGE_OFFSET' undeclared
    
    Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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2009/4/2 Kyle McMartin <kyle@hera.kernel.org>:
> New commits:

Thanks Kyle.

Do you have objections against patch
http://patchwork.kernel.org/patch/13039/ ?
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On Wed, Jan 21, 2009 at 09:31:30AM -0500, Kyle McMartin wrote:
> Dunno why it's broken, but this stuff is in git. Let me know if I missed
> anything.
> 

To answer my own question, it's because I was a muppet and didn't push
to the master branch as well as the parisc branch.

regards, Kyle
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From - Thu Nov 08 21:03:53 2018
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On Thu, Apr 02, 2009 at 04:20:49AM +0400, Alexander Beregalov wrote:
> 2009/4/2 Kyle McMartin <kyle@hera.kernel.org>:
> > New commits:
> 
> Thanks Kyle.
> 
> Do you have objections against patch
> http://patchwork.kernel.org/patch/13039/ ?
> 

Nope, sorry, processing backlog tonight...

regards, Kyle
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New commits:
commit 91400ac365da35b18036b46bdda27ddbcee4a663
Author: Helge Deller <deller@gmx.de>
Date:   Wed Feb 18 22:12:21 2009 +0000

    parisc: fix "make tar-pkg"
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit c18b4608958ff42ce9a1a55b0a6f40b714f47286
Author: Alexander Beregalov <a.beregalov@gmail.com>
Date:   Thu Mar 19 10:54:07 2009 +0000

    parisc: drivers: fix warnings
    
    ccio-dma.c:456: warning: overflow in implicit constant conversion
    ccio-dma.c:459: warning: overflow in implicit constant conversion
    ccio-dma.c:1032: warning: unused variable 'j'
    ccio-dma.c:1031: warning: unused variable 'max'
    ccio-dma.c:1031: warning: unused variable 'min'
    ccio-dma.c:1031: warning: unused variable 'avg'
    ccio-dma.c:1403: warning: format '%08lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
    ccio-dma.c:1403: warning: format '%08lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
    ccio-dma.c:1554: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
    dino.c:822: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
    dino.c:822: warning: format '%lx' expects type 'long unsigned int', but argument 5 has type 'resource_size_t'
    dino.c:902: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
    dino.c:902: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
    asp.c:84: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
    eisa.c:317: warning: format '%08lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
    eisa_enumerator.c:101: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t'
    eisa_enumerator.c:101: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
    eisa_enumerator.c:191: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t'
    eisa_enumerator.c:191: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
    
    Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit f67d3c83f3f1e6523325628434bf19e5166b39b3
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Wed Mar 25 14:09:10 2009 +0000

    parisc: select BUG always
    
    On Wed, Mar 25, 2009 at 05:02:21PM +0300, Alexander Beregalov wrote:
    > arch/parisc/kernel/traps.c:321: error: 'PARISC_BUG_BREAK_INSN'
    > undeclared (first use in this function)
    >
    > # CONFIG_BUG is not set
    > CONFIG_EMBEDDED=y
    >
    > Is it a reasonable config?
    
    imho, no.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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New commits:
commit 7cec2ef4a298605b010f1c80041de884e777ea67
Merge: 91400ac365da35b18036b46bdda27ddbcee4a663 9bc181d8d7cb6462de0c315e364780ad275f7c57
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Thu Apr 2 01:43:14 2009 +0000

    Merge branch 'rusty-cpumask-parisc' into parisc

commit 9bc181d8d7cb6462de0c315e364780ad275f7c57
Author: Rusty Russell <rusty@rustcorp.com.au>
Date:   Mon Mar 16 14:19:38 2009 +1030

    cpumask: Use accessors code.: parisc
    
    Impact: use new API
    
    Use the accessors rather than frobbing bits directly.  Most of this is
    in arch code I haven't even compiled, but it is mostly straightforward.
    
    Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
    Signed-off-by: Mike Travis <travis@sgi.com>

commit bd071e1a371d31db243edc4714ff9e8d1ea1309e
Author: Rusty Russell <rusty@rustcorp.com.au>
Date:   Mon Mar 16 14:19:37 2009 +1030

    cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: parisc
    
    Impact: cleanup, futureproof
    
    In fact, all cpumask ops will only be valid (in general) for bit
    numbers < nr_cpu_ids.  So use that instead of NR_CPUS in various
    places.
    
    This is always safe: no cpu number can be >= nr_cpu_ids, and
    nr_cpu_ids is initialized to NR_CPUS at boot.
    
    Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
    Signed-off-by: Mike Travis <travis@sgi.com>
    Acked-by: Ingo Molnar <mingo@elte.hu>

commit 91887a362984324e254473e92820758c8e658f78
Author: Rusty Russell <rusty@rustcorp.com.au>
Date:   Mon Mar 16 14:19:37 2009 +1030

    cpumask: arch_send_call_function_ipi_mask: parisc
    
    We're weaning the core code off handing cpumask's around on-stack.
    This introduces arch_send_call_function_ipi_mask(), and by defining
    it, the old arch_send_call_function_ipi is defined by the core code.
    
    We also take the chance to change send_IPI_mask() and use the new
    for_each_cpu() iterator.
    
    Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

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New commits:
commit 7cec2ef4a298605b010f1c80041de884e777ea67
Merge: 91400ac365da35b18036b46bdda27ddbcee4a663 9bc181d8d7cb6462de0c315e364780ad275f7c57
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Thu Apr 2 01:43:14 2009 +0000

    Merge branch 'rusty-cpumask-parisc' into parisc

commit 9bc181d8d7cb6462de0c315e364780ad275f7c57
Author: Rusty Russell <rusty@rustcorp.com.au>
Date:   Mon Mar 16 14:19:38 2009 +1030

    cpumask: Use accessors code.: parisc
    
    Impact: use new API
    
    Use the accessors rather than frobbing bits directly.  Most of this is
    in arch code I haven't even compiled, but it is mostly straightforward.
    
    Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
    Signed-off-by: Mike Travis <travis@sgi.com>

commit bd071e1a371d31db243edc4714ff9e8d1ea1309e
Author: Rusty Russell <rusty@rustcorp.com.au>
Date:   Mon Mar 16 14:19:37 2009 +1030

    cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: parisc
    
    Impact: cleanup, futureproof
    
    In fact, all cpumask ops will only be valid (in general) for bit
    numbers < nr_cpu_ids.  So use that instead of NR_CPUS in various
    places.
    
    This is always safe: no cpu number can be >= nr_cpu_ids, and
    nr_cpu_ids is initialized to NR_CPUS at boot.
    
    Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
    Signed-off-by: Mike Travis <travis@sgi.com>
    Acked-by: Ingo Molnar <mingo@elte.hu>

commit 91887a362984324e254473e92820758c8e658f78
Author: Rusty Russell <rusty@rustcorp.com.au>
Date:   Mon Mar 16 14:19:37 2009 +1030

    cpumask: arch_send_call_function_ipi_mask: parisc
    
    We're weaning the core code off handing cpumask's around on-stack.
    This introduces arch_send_call_function_ipi_mask(), and by defining
    it, the old arch_send_call_function_ipi is defined by the core code.
    
    We also take the chance to change send_IPI_mask() and use the new
    for_each_cpu() iterator.
    
    Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

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Subject: parisc: fix build when ARCH_HAS_KMAP
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From: Kyle McMartin <kyle@mcmartin.ca>

When we build for PA8X00, we define ARCH_HAS_KMAP, which results in
the kmap_types.h include in highmem.h getting skipped...

In file included from include/linux/pagemap.h:10,
                 from include/linux/mempolicy.h:62,
                 from init/main.c:52:
include/linux/highmem.h:196: warning: 'enum km_type' declared inside parameter list
include/linux/highmem.h:196: warning: its scope is only this definition or declaration, which is probably not what you want
include/linux/highmem.h:196: error: parameter 1 ('type') has incomplete type

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
---
 arch/parisc/include/asm/cacheflush.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index b7ca6dc..7243951 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -97,6 +97,9 @@ void mark_rodata_ro(void);
 
 #ifdef CONFIG_PA8X00
 /* Only pa8800, pa8900 needs this */
+
+#include <asm/kmap_types.h>
+
 #define ARCH_HAS_KMAP
 
 void kunmap_parisc(void *addr);
-- 
1.6.1.1

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New commits:
commit bb7350194130ae6bd3fdec16fe1b7597c1c0bb8d
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Thu Apr 2 02:40:41 2009 +0000

    parisc: fix build when ARCH_HAS_KMAP
    
    When we build for PA8X00, we define ARCH_HAS_KMAP, which results in
    the kmap_types.h include in highmem.h getting skipped...
    
    In file included from include/linux/pagemap.h:10,
                     from include/linux/mempolicy.h:62,
                     from init/main.c:52:
    include/linux/highmem.h:196: warning: 'enum km_type' declared inside parameter list
    include/linux/highmem.h:196: warning: its scope is only this definition or declaration, which is probably not what you want
    include/linux/highmem.h:196: error: parameter 1 ('type') has incomplete type
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From: Kyle McMartin <kyle@hera.kernel.org>
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Subject: [git] parisc: Changes to ref refs/heads/master
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New commits:
commit bb7350194130ae6bd3fdec16fe1b7597c1c0bb8d
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Thu Apr 2 02:40:41 2009 +0000

    parisc: fix build when ARCH_HAS_KMAP
    
    When we build for PA8X00, we define ARCH_HAS_KMAP, which results in
    the kmap_types.h include in highmem.h getting skipped...
    
    In file included from include/linux/pagemap.h:10,
                     from include/linux/mempolicy.h:62,
                     from init/main.c:52:
    include/linux/highmem.h:196: warning: 'enum km_type' declared inside parameter list
    include/linux/highmem.h:196: warning: its scope is only this definition or declaration, which is probably not what you want
    include/linux/highmem.h:196: error: parameter 1 ('type') has incomplete type
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: HPPA will never have NPTL support. April fools. Here's the patch.
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To: Aurelien Jarno <aurel32@debian.org>,  	Debian HPPA Port List <debian-hppa@lists.debian.org>, linux-parisc <linux-parisc@vger.kernel.org>,  	libc-ports@sourceware.org
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--001485f1ea66023bb6046689710f
Content-Type: text/plain; charset=ISO-8859-1
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Aurel,

Please find attached the patches that implements the POSIX Thread
compat functions for HPPA's transition from Linuxthreads to NPTL.

The core patch are changes required to core libc or nptl.

The ports patch are changes required to the ports add-on.

The compat-tests.tbz2 is a WIP of the small test-suite I am using
to manually validate each function works correctly.

I've run the patches through the full glibc make check and I don't
see any serious regressions.

Could you please build with these patches and report back the
results of the glibc testsuite?

I've CC'd libc-ports just to have a record of what such a massing
versioning looks like, and the hacks required to accomplish it.

Cheers,
Carlos.

--001485f1ea66023bb6046689710f
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New commits:
commit b609308e1415efebdf79ebd553f4dd47b0ff2722
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Sun Mar 15 16:49:55 2009 -0400

    parisc: move dereference_function_descriptor to process.c
    
    Commit deac93df26b20cf8438339b5935b5f5643bc30c9 fixed up printing
    of %pF on parisc, but added the dereference_function_descriptor
    prototype to module.c... this isn't a particularly wise idea as
    module.c might not always be compiled.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit bf589a349b9a41ea202ddb8115b18f543b944bfd
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Sun Mar 15 16:44:25 2009 -0400

    parisc: Move kernel Elf_Fdesc define to <asm/elf.h>
    
    elf.h probably won't be exported to userspace, but play it safe
    and cram it in a #ifdef __KERNEL__ guard.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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New commits:
commit b609308e1415efebdf79ebd553f4dd47b0ff2722
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Sun Mar 15 16:49:55 2009 -0400

    parisc: move dereference_function_descriptor to process.c
    
    Commit deac93df26b20cf8438339b5935b5f5643bc30c9 fixed up printing
    of %pF on parisc, but added the dereference_function_descriptor
    prototype to module.c... this isn't a particularly wise idea as
    module.c might not always be compiled.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit bf589a349b9a41ea202ddb8115b18f543b944bfd
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Sun Mar 15 16:44:25 2009 -0400

    parisc: Move kernel Elf_Fdesc define to <asm/elf.h>
    
    elf.h probably won't be exported to userspace, but play it safe
    and cram it in a #ifdef __KERNEL__ guard.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:03:55 2018
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On Mon, Mar 16, 2009 at 08:56:24PM -0400, Kyle McMartin wrote:
> On Mon, Mar 16, 2009 at 08:51:47PM -0400, Kyle McMartin wrote:
> > > In the info below, I only included relevant data.  No hpmc data was
> > > recorded for processors 2 and 3.  Unfortunately, I lost the console output
> > > for the crash if any.
> > > 
> > > This is with a SMP 64-bit kernel.  I still have it and the config file.
> > > 
> > > I'm not the greatest at interpreting chassis codes.  It's not at all clear
> > > to me what went wrong.
> > >
> > 
> > Good catch, looks like we're missing a compat handler for msgctl. I'll
> > add one and hopefully this will go away. :)
> > 
> 
> Woah. Really good catch, we're missing compat handlers for virtually all
> the ipc functions!
> 
> I'll fix this up ASAP.
> 

This was nastier than I've anticipated, since we do ipc differently from
everyone else... I should have a patch ready in the morning.

cheers, Kyle
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Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 0/7] Generic RTC class driver
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On Fri, 13 Mar 2009, Kyle McMartin wrote:
> On Wed, Mar 11, 2009 at 06:26:12PM +0100, Geert Uytterhoeven wrote:
> > On Wed, 11 Mar 2009, Kyle McMartin wrote:
> > > On Wed, Mar 11, 2009 at 11:36:02AM +0100, Geert Uytterhoeven wrot=
e:
> > > > Is it OK for you to take it through your PA-RISC tree?
> > > > If yes, I can resend the patch series with the collected acks.
> > >=20
> I've pulled it and pushed it back out, I'll submit it when the merge
> window opens.

Apparently the first half went it through akpm. Will you take care of t=
he
remaining commits?

Thanks!

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Bel=
gium

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Hi Kyle,

On Wed, 1 Apr 2009 13:50:34 -0400 Kyle McMartin <kyle@mcmartin.ca> wrote:
>
> What's the optimal way to sort out multiple branches in this tree?
> Apparently Andrew is cross with me because the rtc-parisc branch didn't
> get picked up... Should I put a list of branches in my kernel.org
> public_html or something?

I am not quite sure what you are getting at.  If you have multiple trees
(or branches in a tree), I can merge them separately into linux-next -
just tell me what they are.

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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From - Thu Nov 08 21:03:55 2018
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To: Stephen Rothwell <sfr@canb.auug.org.au>
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On Thu, 2009-04-02 at 22:32 +1100, Stephen Rothwell wrote:
> Hi Kyle,
> 
> On Wed, 1 Apr 2009 13:50:34 -0400 Kyle McMartin <kyle@mcmartin.ca> wrote:
> >
> > What's the optimal way to sort out multiple branches in this tree?
> > Apparently Andrew is cross with me because the rtc-parisc branch didn't
> > get picked up... Should I put a list of branches in my kernel.org
> > public_html or something?
> 
> I am not quite sure what you are getting at.  If you have multiple trees
> (or branches in a tree), I can merge them separately into linux-next -
> just tell me what they are.

Actually, the traditional way for a multi branch tree (something like
Jens' Block tree) which contains all manner of branches, some of which
are experimental and shouldn't be in linux-next, is to have a next
branch into which you manually merge all branches that should be
included.

James


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Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
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Cc: Kyle McMartin <kyle@infradead.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Alessandro Zummo <alessandro.zummo@towertech.it>,
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	Linux/PPC Development <linuxppc-dev@ozlabs.org>,
	Paul Mundt <lethal@linux-sh.org>,
	Dann Frazier <dannf@dannf.org>
To: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
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On Thu, Apr 02, 2009 at 11:42:02AM +0200, Geert Uytterhoeven wrote:
> On Fri, 13 Mar 2009, Kyle McMartin wrote:
> > On Wed, Mar 11, 2009 at 06:26:12PM +0100, Geert Uytterhoeven wrote:
> > > On Wed, 11 Mar 2009, Kyle McMartin wrote:
> > > > On Wed, Mar 11, 2009 at 11:36:02AM +0100, Geert Uytterhoeven wrote:
> > > > > Is it OK for you to take it through your PA-RISC tree?
> > > > > If yes, I can resend the patch series with the collected acks.
> > > > 
> > I've pulled it and pushed it back out, I'll submit it when the merge
> > window opens.
> 
> Apparently the first half went it through akpm. Will you take care of the
> remaining commits?
> 

Yup, I updated the rtc-parisc branch last night, I'll push it along to
Linus this morning.

Thanks again, Geert.

cheers, Kyle
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From: Kyle McMartin <kyle@hera.kernel.org>
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Subject: [git patches] rtc{,-parisc} patches for 2.6.30
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The following changes since commit 833bb3046b6cb320e775ea2160ddca87d53260d5:
  Alexey Dobriyan (1):
        serial: fixup /proc/tty/driver/serial after proc_fops conversion

are available in the git repository at:

  master.kernel.org:/pub/scm/linux/kernel/git/kyle/rtc-parisc.git master

Geert Uytterhoeven (7):
      parisc: rtc: get_rtc_time() returns unsigned int
      parisc: rtc: platform_driver_probe() fixups
      parisc: rtc: Add missing module alias
      parisc: rtc: Rename rtc-parisc to rtc-generic
      m68k: Hook up rtc-generic
      powerpc: Hook up rtc-generic, and kill rtc-ppc
      powerpc/ps3: Add rtc-ps3

 arch/m68k/include/asm/rtc.h           |    7 ++-
 arch/m68k/kernel/time.c               |   18 ++++++
 arch/parisc/Kconfig                   |    2 +-
 arch/parisc/kernel/time.c             |    6 +-
 arch/powerpc/include/asm/ps3.h        |    3 +
 arch/powerpc/kernel/time.c            |   16 +++++
 arch/powerpc/platforms/ps3/os-area.c  |    2 +
 arch/powerpc/platforms/ps3/platform.h |    2 -
 arch/powerpc/platforms/ps3/setup.c    |    2 -
 arch/powerpc/platforms/ps3/time.c     |   26 ++++-----
 drivers/rtc/Kconfig                   |   31 +++++-----
 drivers/rtc/Makefile                  |    4 +-
 drivers/rtc/rtc-generic.c             |   84 ++++++++++++++++++++++++++
 drivers/rtc/rtc-parisc.c              |   86 ---------------------------
 drivers/rtc/rtc-ppc.c                 |   69 ----------------------
 drivers/rtc/rtc-ps3.c                 |  104 +++++++++++++++++++++++++++++++++
 16 files changed, 267 insertions(+), 195 deletions(-)
 create mode 100644 drivers/rtc/rtc-generic.c
 delete mode 100644 drivers/rtc/rtc-parisc.c
 delete mode 100644 drivers/rtc/rtc-ppc.c
 create mode 100644 drivers/rtc/rtc-ps3.c


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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.kernel.next,gmane.linux.ports.parisc
Subject: Re: linux-next: manual merge of the tracing tree with the parisc
	tree
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Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>,
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	linux-parisc@vger.kernel.org,
	Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>,
	Steven Rostedt <srostedt@redhat.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Thu, Apr 02, 2009 at 01:54:43PM +0000, James Bottomley wrote:
> Actually, the traditional way for a multi branch tree (something like
> Jens' Block tree) which contains all manner of branches, some of which
> are experimental and shouldn't be in linux-next, is to have a next
> branch into which you manually merge all branches that should be
> included.
> 
> James
> 

Heh, that makes sense. Occam's Razor, I guess.

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The following changes since commit 15f7176eb1cccec0a332541285ee752b935c1c85:
  Linus Torvalds (1):
        Merge git://git.kernel.org/.../davem/net-2.6

are available in the git repository at:

  master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git master

Alexander Beregalov (4):
      parisc: iosapic: fix build breakage
      parisc: led: remove proc_dir_entry::owner
      parisc: asm/pdc.h should include asm/page.h
      parisc: drivers: fix warnings

Colin Watson (1):
      parisc: expose 32/64-bit capabilities in cpuinfo

Helge Deller (10):
      parisc: fix usage of 32bit PTE page table entries on 32bit kernels
      parisc: use constants instead of numbers in assembly
      parisc: allow to build with 16k default kernel page size
      parisc: add LATENCYTOP_SUPPORT and CONFIG_STACKTRACE_SUPPORT
      parisc: simplify sys_clone()
      parisc: add ftrace (function and graph tracer) functionality
      parisc: blink all or loadavg LEDs on oops
      parisc: document light weight syscall ABI
      parisc: oops_enter()/oops_exit() in die()
      parisc: fix "make tar-pkg"

James Bottomley (1):
      parisc: fix macro expansion in atomic.h

Kyle McMartin (5):
      parisc: select BUG always
      Merge branch 'rusty-cpumask-parisc' into parisc
      parisc: fix build when ARCH_HAS_KMAP
      parisc: Move kernel Elf_Fdesc define to <asm/elf.h>
      parisc: move dereference_function_descriptor to process.c

Rusty Russell (3):
      cpumask: arch_send_call_function_ipi_mask: parisc
      cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: parisc
      cpumask: Use accessors code.: parisc

 arch/parisc/Kconfig                  |   10 ++
 arch/parisc/Makefile                 |    4 +-
 arch/parisc/include/asm/atomic.h     |   18 ++--
 arch/parisc/include/asm/cacheflush.h |    3 +
 arch/parisc/include/asm/elf.h        |   10 ++
 arch/parisc/include/asm/ftrace.h     |   25 +++++
 arch/parisc/include/asm/page.h       |   13 +--
 arch/parisc/include/asm/pdc.h        |    4 +
 arch/parisc/include/asm/pgtable.h    |   15 ++-
 arch/parisc/include/asm/smp.h        |    3 +-
 arch/parisc/kernel/Makefile          |   15 +++
 arch/parisc/kernel/entry.S           |   60 +++++++++--
 arch/parisc/kernel/firmware.c        |    6 +-
 arch/parisc/kernel/ftrace.c          |  185 ++++++++++++++++++++++++++++++++++
 arch/parisc/kernel/irq.c             |    4 +-
 arch/parisc/kernel/module.c          |   18 ----
 arch/parisc/kernel/parisc_ksyms.c    |    5 +
 arch/parisc/kernel/process.c         |   29 +++---
 arch/parisc/kernel/processor.c       |   13 ++-
 arch/parisc/kernel/smp.c             |   21 ++--
 arch/parisc/kernel/stacktrace.c      |   63 ++++++++++++
 arch/parisc/kernel/syscall.S         |   58 +++++++++--
 arch/parisc/kernel/time.c            |    3 +-
 arch/parisc/kernel/traps.c           |    5 +-
 arch/parisc/kernel/vmlinux.lds.S     |    2 +
 arch/parisc/mm/init.c                |    7 ++
 drivers/parisc/asp.c                 |    2 +-
 drivers/parisc/ccio-dma.c            |   16 ++--
 drivers/parisc/dino.c                |    7 +-
 drivers/parisc/eisa.c                |    2 +-
 drivers/parisc/eisa_enumerator.c     |    4 +-
 drivers/parisc/iosapic.c             |    2 +-
 drivers/parisc/led.c                 |   26 +++--
 scripts/package/buildtar             |    4 +
 34 files changed, 540 insertions(+), 122 deletions(-)
 create mode 100644 arch/parisc/include/asm/ftrace.h
 create mode 100644 arch/parisc/kernel/ftrace.c
 create mode 100644 arch/parisc/kernel/stacktrace.c
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From - Thu Nov 08 21:03:55 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: can't compile kernel for parisc
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To: Alexander Beregalov <a.beregalov@gmail.com>
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On Wed, Mar 18, 2009 at 02:55:13PM +0300, Alexander Beregalov wrote:
> 
> I have recompiled kernel with -ffunction-sections, but still the same problem.
> 

This is wrong... the kernel is always built with -ffunction-sections,
see arch/parisc/Makefile:

# Without this, "ld -r" results in .text sections that are too big
# (> 0x40000) for branches to reach stubs.
cflags-y        += -ffunction-sections

cheers, Kyle
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On Wed, Mar 18, 2009 at 10:00:26AM -0400, John David Anglin wrote:
> > ld: arch/parisc/kernel/built-in.o(.text+0xc84): cannot reach
> > 000000b2_b2:46+4068, recompile with -ffunction-sections
> > ld: arch/parisc/kernel/built-in.o(.text+0xc84): cannot handle
> > R_PARISC_PCREL12F for .text
> > 
> 
> -ffunction-sections won't work because GCC doesn't generate calls
> with instructions that would use a R_PARISC_PCREL12F relocation.
> This is some kind of conditional branch.  Probably, it's in some
> kernel assembly code.
> 
> You need to use nm, objdump and/or readelf to determine which file
> contributing to built-in.o contains the branch.  I looked in one of
> my builds and didn't see this relocation.
> 

This is... somewhat special. I've never seen this either. Possibly I
should install a Gentoo machine so I can reproduce with their toolchain?

objdump -dr arch/parisc/kernel/built-in.o | grep PCREL12F should tell
you where the problem is. I agree with JDA, judging by the fact that
it's the kernel/built-in.o, I would guess it's assembler as well.

(Sorry for taking so long to get to this thread, I must have missed it
 while I was in Boston.)

regards, Kyle
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Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---

 arch/parisc/include/asm/dma.h  |    3 +--
 arch/parisc/kernel/cache.c     |    3 +--
 arch/parisc/kernel/pci.c       |    3 +--
 arch/parisc/kernel/processor.c |    3 +--
 arch/parisc/kernel/setup.c     |    3 +--
 arch/parisc/lib/checksum.c     |    2 --
 arch/parisc/mm/fault.c         |    3 +--
 7 files changed, 6 insertions(+), 14 deletions(-)

diff --git a/arch/parisc/include/asm/dma.h b/arch/parisc/include/asm/dma.h
index 31ad0f0..f7a18f9 100644
--- a/arch/parisc/include/asm/dma.h
+++ b/arch/parisc/include/asm/dma.h
@@ -1,5 +1,4 @@
-/* $Id: dma.h,v 1.2 1999/04/27 00:46:18 deller Exp $
- * linux/include/asm/dma.h: Defines for using and allocating dma channels.
+/* asm/dma.h: Defines for using and allocating dma channels.
  * Written by Hennus Bergman, 1992.
  * High DMA channel support & info by Hannu Savolainen
  * and John Boyd, Nov. 1992.
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 837530e..f34082d 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -1,5 +1,4 @@
-/* $Id: cache.c,v 1.4 2000/01/25 00:11:38 prumpf Exp $
- *
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 6936386..f7064ab 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -1,5 +1,4 @@
-/* $Id: pci.c,v 1.6 2000/01/29 00:12:05 grundler Exp $
- *
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index ecb6093..6ce3b52 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -1,5 +1,4 @@
-/*    $Id: processor.c,v 1.1 2002/07/20 16:27:06 rhirst Exp $
- *
+/*
  *    Initial setup-routines for HP 9000 based hardware.
  *
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 82131ca..cb71f3d 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -1,5 +1,4 @@
-/*    $Id: setup.c,v 1.8 2000/02/02 04:42:38 prumpf Exp $
- *
+/*
  *    Initial setup-routines for HP 9000 based hardware.
  *
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
diff --git a/arch/parisc/lib/checksum.c b/arch/parisc/lib/checksum.c
index 462696d..ae66d31 100644
--- a/arch/parisc/lib/checksum.c
+++ b/arch/parisc/lib/checksum.c
@@ -13,8 +13,6 @@
  *		modify it under the terms of the GNU General Public License
  *		as published by the Free Software Foundation; either version
  *		2 of the License, or (at your option) any later version.
- *
- * $Id: checksum.c,v 1.3 1997/12/01 17:57:34 ralf Exp $
  */
 #include <linux/module.h>
 #include <linux/types.h>
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 92c7fa4..d617e79 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -1,5 +1,4 @@
-/* $Id: fault.c,v 1.5 2000/01/26 16:20:29 jsm Exp $
- *
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
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Fix this build error when CONFIG_PROC_FS is not set:
drivers/parisc/ccio-dma.c:1574: error: 'ccio_proc_info_fops' undeclared

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---

 drivers/parisc/ccio-dma.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 5d610cb..0f0e0b9 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1134,7 +1134,7 @@ static const struct file_operations ccio_proc_bitmap_fops = {
 	.llseek = seq_lseek,
 	.release = single_release,
 };
-#endif
+#endif /* CONFIG_PROC_FS */
 
 /**
  * ccio_find_ioc - Find the ioc in the ioc_list
@@ -1568,14 +1568,15 @@ static int __init ccio_probe(struct parisc_device *dev)
 	/* if this fails, no I/O cards will work, so may as well bug */
 	BUG_ON(dev->dev.platform_data == NULL);
 	HBA_DATA(dev->dev.platform_data)->iommu = ioc;
-	
+
+#ifdef CONFIG_PROC_FS
 	if (ioc_count == 0) {
 		proc_create(MODULE_NAME, 0, proc_runway_root,
 			    &ccio_proc_info_fops);
 		proc_create(MODULE_NAME"-bitmap", 0, proc_runway_root,
 			    &ccio_proc_bitmap_fops);
 	}

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Fix this build error when CONFIG_STI_CONSOLE is not set
drivers/video/stifb.c:1337: undefined reference to `sti_get_rom'

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---

 drivers/video/Kconfig |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index ffe2f27..cfb2014 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -616,6 +616,8 @@ config FB_STI
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
+	select STI_CONSOLE
+	select VT
 	default y
 	---help---
 	  STI refers to the HP "Standard Text Interface" which is a set of
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From: Alexander Beregalov <a.beregalov@gmail.com>
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Subject: Re: can't compile kernel for parisc
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2009/4/2 Kyle McMartin <kyle@mcmartin.ca>:
> On Wed, Mar 18, 2009 at 10:00:26AM -0400, John David Anglin wrote:
>> > ld: arch/parisc/kernel/built-in.o(.text+0xc84): cannot reach
>> > 000000b2_b2:46+4068, recompile with -ffunction-sections
>> > ld: arch/parisc/kernel/built-in.o(.text+0xc84): cannot handle
>> > R_PARISC_PCREL12F for .text
>> >
>>
>> -ffunction-sections won't work because GCC doesn't generate calls
>> with instructions that would use a R_PARISC_PCREL12F relocation.
>> This is some kind of conditional branch. =C2=A0Probably, it's in som=
e
>> kernel assembly code.
>>
>> You need to use nm, objdump and/or readelf to determine which file
>> contributing to built-in.o contains the branch. =C2=A0I looked in on=
e of
>> my builds and didn't see this relocation.
>>
>
> This is... somewhat special. I've never seen this either. Possibly I
> should install a Gentoo machine so I can reproduce with their toolcha=
in?
>
> objdump -dr arch/parisc/kernel/built-in.o | grep PCREL12F should tell
> you where the problem is. I agree with JDA, judging by the fact that
> it's the kernel/built-in.o, I would guess it's assembler as well.
Thanks.
now I have

ld: drivers/built-in.o(.devinit.text+0x3f520): cannot reach
00002ea1_memcpy+0, recompile with -ffunction-sections
ld: drivers/built-in.o(.devinit.text+0x3f520): cannot handle
R_PARISC_PCREL17F for memcpy


0003f044 <niu_get_invariants>:
<..>
0003f0ac <.L1724>:
<..>
3f510:       40 bc 01 b0     ldb d8(r5),ret0
3f514:       37 9c 00 02     ldo 1(ret0),ret0
3f518:       60 bc 01 b0     stb ret0,d8(r5)
3f51c:       40 b8 01 e8     ldb f4(r5),r24
3f520:       e8 40 00 00     b,l 3f528 <.L1724+0x47c>,rp
                   3f520: R_PARISC_PCREL17F        memcpy
3f524:       34 ba 02 88     ldo 144(r5),r26
3f528:       e8 5f 04 25     b,l 3e740 <niu_get_and_validate_port>,rp
3f52c:       08 12 02 5a     copy r18,r26
3f530:       c8 7c ae c4     movb,<> ret0,r3,40c98 <.L1884+0x5c>
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Subject: Re: linux-next: manual merge of the tracing tree with the parisc
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Cc: Kyle McMartin <kyle@mcmartin.ca>,
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* Stephen Rothwell <sfr@canb.auug.org.au> wrote:

> Hi Kyle,
> 
> On Wed, 1 Apr 2009 13:50:34 -0400 Kyle McMartin <kyle@mcmartin.ca> wrote:
> >
> > What's the optimal way to sort out multiple branches in this 
> > tree? Apparently Andrew is cross with me because the rtc-parisc 
> > branch didn't get picked up... Should I put a list of branches 
> > in my kernel.org public_html or something?
> 
> I am not quite sure what you are getting at.  If you have multiple 
> trees (or branches in a tree), I can merge them separately into 
> linux-next - just tell me what they are.

One solution, when there are lots of branches, is what we use in the 
-tip tree to auto-integrate the auto-*-next output branches.

It works like this:

For each output auto-*-next tree (there's 19 at the moment) there's 
a special file under the tip:tip/.tip/auto-branches/ directory.

Say the auto-tracing-next tree is represented via a list of topic 
branches in .tip/auto-branches/auto-tracing-next:

    tracing/core
    tracing/urgent
    tracing/ftrace
    tracing/mmiotrace
    tracing/sysprof
    tracing/nmisafe
    tracing/stack-tracer
    tracing/fastboot
    tracing/markers
    tracing/ring-buffer
    tracing/pipe
    tracing/tracepoints
    tracing/core-v2
    tracing/fastboot-v2
    tracing/core-v3
    tracing/function-return-tracer
    tracing/branch-tracer
    
    # dont know yet:
    # tracing/dump-tracer
    
    tracing/options
    tracing/profiling
    tracing/power-tracer
    tracing/powerpc

    # broken right now:
    # tracing/hw-branch-tracing

    tracing/function-graph-tracer
    tracing/blktrace
    tracing/graph-tracer
    tracing/docs
    tracing/kmemtrace
    tracing/kmemtrace2
    tracing/printk
    tracing/doc
    tracing/syscalls
    tracing/syscalls
    tracing/filters
    tracing/tasks
    tracing/kprobes
    tracing/hw-breakpoints
    tracing/blktrace-v2
    tracing/kmemtrace-v2

When things are quiet and there are no known regressions, i type:

  tip-integrate auto-tracing-next

and soon afterwards a new tree comes out. I dont have to do any 
manual integration, it's all automated, including the cached 
resolution of conflicts. If a new conflict comes up i get a shell 
prompt, fix the conflict, commit it and the integration continues.

If i'm happy with the end result i push it out.

As you can see it above, branches can be annotated and commented 
out. For example this branch:

    # broken right now:
    #tracing/hw-branch-tracing

was causing boot crashes so we excluded it from the 
auto-tracing-next output and linux-next wont crash due to these 
known and under-development problems.

Another branch:

    # dont know yet:
    # tracing/dump-tracer

Is holding commits i'm not sure we want to push upstream yet, so we 
dont push it into linux-next. (linux-next is meant for items that 
are intended for the next cycle.)

There's a similar list of topics for the other integration trees:

 auto-core-next         auto-latest                     auto-stackprotector-next
 auto-cpus4096-next     auto-oprofile-next              auto-timers-next
 auto-fastboot-next     auto-perfcounters-next          auto-tracing-next
 auto-generic-ipi-next  auto-rt-next                    auto-warnings-next
 auto-genirq-next       auto-safe-poison-pointers-next  auto-x86-next
 auto-iommu-next        auto-sched-next
 auto-kmemcheck-next    auto-sparseirq-next

Over 100 topic branches are active typically just before the merge 
window - they go down to below 10 after the merge window. So there's 
a constant ebb and flow in topic activity.

We also have a "tip-integrate-all" script that runs through all the 
-next branches and integrates them.

These tools can be found under the -tip:.tip/bin/ directory - 
there's currently 68 utility scripts there currently, to solve 
various probems all around integration tree maintenance, problems 
which are often not solved by the base Git toolset adequately.

Hope this helps,

	Ingo

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On Fri, Apr 03, 2009 at 05:49:22AM +0400, Alexander Beregalov wrote:
> 
> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>

I don't feel comfortable removing these for hysterical raisins, unless
people on the list ack this. (Just like I wouldn't remove the "sorry
about the wall" comment... :)

regards, Kyle
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On Fri, Apr 03, 2009 at 04:08:54PM +0400, Alexander Beregalov wrote:
> Fix this build error when CONFIG_PROC_FS is not set:
> drivers/parisc/ccio-dma.c:1574: error: 'ccio_proc_info_fops' undeclared
> 
> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>

Applied to the fixes branch.

cheers, Kyle
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On Fri, Apr 03, 2009 at 05:33:32PM +0400, Alexander Beregalov wrote:
> Fix this build error when CONFIG_STI_CONSOLE is not set
> drivers/video/stifb.c:1337: undefined reference to `sti_get_rom'
> 
> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>

Applied to fixes branch.

Thanks, Kyle
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On Fri, Apr 03, 2009 at 01:58:49PM -0400, Kyle McMartin wrote:
> I don't feel comfortable removing these for hysterical raisins, unless
> people on the list ack this. (Just like I wouldn't remove the "sorry
> about the wall" comment... :)

I appreciate that ;-)

-- 
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"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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On Fri, Apr 03, 2009 at 01:58:49PM -0400, Kyle McMartin wrote:
> On Fri, Apr 03, 2009 at 05:49:22AM +0400, Alexander Beregalov wrote:
> > 
> > Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
> 
> I don't feel comfortable removing these for hysterical raisins, unless
> people on the list ack this.

I don't mind them being removed. The history is preserved else
where for whoever wants to look.  Please add my
	Ack-by: Grant Grundler <grundler@parisc-linux.org>

to whatever parts of this patch you care to accept.

> (Just like I wouldn't remove the "sorry
> about the wall" comment... :)

Sorry, I've no clue about this one...what's the story? :)

thanks,
grant
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On Fri, Apr 3, 2009 at 7:58 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Fri, Apr 03, 2009 at 05:49:22AM +0400, Alexander Beregalov wrote:
>>
>> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
>
> I don't feel comfortable removing these for hysterical raisins, unless
> people on the list ack this.

Well I clearly have no say regarding those specific files, but it
seems to me like these CVS Id tags are completely meaningless, anyway
you want to look at them. They barely refer to the last person having
touched these files in our *CVS* tree, which hasn't been touched in
ice ages...

Copyright information is stored elsewhere, and historical trivia can
still be found in said CVS tree.

Plus, I may be wrong but ISTR back in the days when we were still
using CVS that these very tags were frowned upon as they were the
source of merge conflicts (I'm pretty sure there were some emails
about that years ago, though I can't seem to find them online).

HTH

T-Bone

-- 
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http://www.parisc-linux.org/~varenet/
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On Sat, Apr 04, 2009 at 12:09:58AM -0600, Grant Grundler wrote:
> On Fri, Apr 03, 2009 at 01:58:49PM -0400, Kyle McMartin wrote:
> > On Fri, Apr 03, 2009 at 05:49:22AM +0400, Alexander Beregalov wrote:
> > > 
> > > Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
> > 
> > I don't feel comfortable removing these for hysterical raisins, unless
> > people on the list ack this.
> 
> I don't mind them being removed. The history is preserved else
> where for whoever wants to look.  Please add my
> 	Ack-by: Grant Grundler <grundler@parisc-linux.org>
> 
> to whatever parts of this patch you care to accept.

I'm comfortable with removing the $Id$ tags too.  Generally these have
been in copy-and-pasted files; we weren't relying on them for anything.

Acked-by: Matthew Wilcox <willy@linux.intel.com>

> > (Just like I wouldn't remove the "sorry
> > about the wall" comment... :)
> 
> Sorry, I've no clue about this one...what's the story? :)

Find the file it's in ... look at the history ... you'll get it
eventually ;-)  You'll probably have to go back to the 2.2 tree though.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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From - Thu Nov 08 21:03:56 2018
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From: Bastian Blank <waldi@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] Remove casts from atomic macros
Date: Sat, 4 Apr 2009 22:54:26 +0200
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The atomic operations on parisc are defined as macros. The macros
includes casts which disallows the use of some syntax elements and
produces error like this:

net/phonet/pep.c: In function 'pipe_rcv_status':
net/phonet/pep.c:262: error: lvalue required as left operand of assignment

The patch removes this superfluous casts.

Signed-off-by: Bastian Blank <waldi@debian.org>

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index edbfe25..43e101b 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -222,13 +222,13 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
 
-#define atomic_add(i,v)	((void)(__atomic_add_return( ((int)i),(v))))
-#define atomic_sub(i,v)	((void)(__atomic_add_return(-((int)i),(v))))
+#define atomic_add(i,v)	((void)(__atomic_add_return( (i),(v))))
+#define atomic_sub(i,v)	((void)(__atomic_add_return(-(i),(v))))
 #define atomic_inc(v)	((void)(__atomic_add_return(   1,(v))))
 #define atomic_dec(v)	((void)(__atomic_add_return(  -1,(v))))
 
-#define atomic_add_return(i,v)	(__atomic_add_return( ((int)i),(v)))
-#define atomic_sub_return(i,v)	(__atomic_add_return(-((int)i),(v)))
+#define atomic_add_return(i,v)	(__atomic_add_return( (i),(v)))
+#define atomic_sub_return(i,v)	(__atomic_add_return(-(i),(v)))
 #define atomic_inc_return(v)	(__atomic_add_return(   1,(v)))
 #define atomic_dec_return(v)	(__atomic_add_return(  -1,(v)))
 
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From - Thu Nov 08 21:03:57 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: remove CVS keywords
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Cc: Grant Grundler <grundler@parisc-linux.org>,
	Kyle McMartin <kyle@mcmartin.ca>,
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On Sat, Apr 04, 2009 at 01:14:27PM -0600, Matthew Wilcox wrote:
> I'm comfortable with removing the $Id$ tags too.  Generally these have
> been in copy-and-pasted files; we weren't relying on them for anything.
> 
> Acked-by: Matthew Wilcox <willy@linux.intel.com>
> 

Yeah, looks like cvs.parisc-linux.org had -ko set for *ages* anyway,
so they're even stale wrt cvs.

nuked.

cheers, Kyle
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From - Thu Nov 08 21:03:57 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH] Remove casts from atomic macros
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On Sat, Apr 04, 2009 at 10:54:26PM +0200, Bastian Blank wrote:
> The atomic operations on parisc are defined as macros. The macros
> includes casts which disallows the use of some syntax elements and
> produces error like this:
> 
> net/phonet/pep.c: In function 'pipe_rcv_status':
> net/phonet/pep.c:262: error: lvalue required as left operand of assignment
> 
> The patch removes this superfluous casts.
> 
> Signed-off-by: Bastian Blank <waldi@debian.org>
> 

Applied. Thanks.
(Man that phonet thing is stupid code though...)

cheers, Kyle
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New commits:
commit 0037a0f677821cf81eb14c6bf70ce6d47100adba
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Sun Apr 5 02:53:47 2009 +0000

    parisc: kill WARN in free_initmem when DEBUG_KERNEL
    
    Doing an IPI with local interrupts off triggers a warning. We
    don't need to be quite so ridiculously paranoid. Also, clean up
    a bit of the code a little.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 5fbbf6620fedd54a96267c0b6da7349e62c8473b
Author: Bastian Blank <waldi@debian.org>
Date:   Sat Apr 4 20:54:26 2009 +0000

    parisc: Remove casts from atomic macros
    
    The atomic operations on parisc are defined as macros. The macros
    includes casts which disallows the use of some syntax elements and
    produces error like this:
    
    net/phonet/pep.c: In function 'pipe_rcv_status':
    net/phonet/pep.c:262: error: lvalue required as left operand of assignment
    
    The patch removes this superfluous casts.
    
    Signed-off-by: Bastian Blank <waldi@debian.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 010bbfe92ba9c90f2b7de770c575338056e9d798
Author: Alexander Beregalov <a.beregalov@gmail.com>
Date:   Fri Apr 3 01:49:22 2009 +0000

    parisc: remove CVS keywords
    
    Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
    Acked-by: Matthew Wilcox <willy@linux.intel.com>
    Acked-by: Grant Grundler <grundler@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:03:57 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [PATCH] Remove casts from atomic macros
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On Sat, Apr 04, 2009 at 10:54:26PM +0200, Bastian Blank wrote:
> The atomic operations on parisc are defined as macros. The macros
> includes casts which disallows the use of some syntax elements and
> produces error like this:
> 
> net/phonet/pep.c: In function 'pipe_rcv_status':
> net/phonet/pep.c:262: error: lvalue required as left operand of assignment
> 
> The patch removes this superfluous casts.

Since parisc is "special" for atomic ops, I was worried we would
introduce new warnings into the build because __atomic_add_return()
takes an int as a parameter. No new warnings for my 64-bit build.

thanks,
grant

> 
> Signed-off-by: Bastian Blank <waldi@debian.org>
> 
> diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
> index edbfe25..43e101b 100644
> --- a/arch/parisc/include/asm/atomic.h
> +++ b/arch/parisc/include/asm/atomic.h
> @@ -222,13 +222,13 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
>  
>  #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
>  
> -#define atomic_add(i,v)	((void)(__atomic_add_return( ((int)i),(v))))
> -#define atomic_sub(i,v)	((void)(__atomic_add_return(-((int)i),(v))))
> +#define atomic_add(i,v)	((void)(__atomic_add_return( (i),(v))))
> +#define atomic_sub(i,v)	((void)(__atomic_add_return(-(i),(v))))
>  #define atomic_inc(v)	((void)(__atomic_add_return(   1,(v))))
>  #define atomic_dec(v)	((void)(__atomic_add_return(  -1,(v))))
>  
> -#define atomic_add_return(i,v)	(__atomic_add_return( ((int)i),(v)))
> -#define atomic_sub_return(i,v)	(__atomic_add_return(-((int)i),(v)))
> +#define atomic_add_return(i,v)	(__atomic_add_return( (i),(v)))
> +#define atomic_sub_return(i,v)	(__atomic_add_return(-(i),(v)))
>  #define atomic_inc_return(v)	(__atomic_add_return(   1,(v)))
>  #define atomic_dec_return(v)	(__atomic_add_return(  -1,(v)))
>  
> --
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From - Thu Nov 08 21:03:57 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] Remove casts from atomic macros
Date: Sun, 05 Apr 2009 13:42:38 -0500
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On Sat, 2009-04-04 at 22:54 +0200, Bastian Blank wrote:
> The atomic operations on parisc are defined as macros. The macros
> includes casts which disallows the use of some syntax elements and
> produces error like this:
> 
> net/phonet/pep.c: In function 'pipe_rcv_status':
> net/phonet/pep.c:262: error: lvalue required as left operand of assignment
> 
> The patch removes this superfluous casts.

Actually, it's not the casts that are the problem, it's the fact that
they apply to an unbacketed macro argument.  The actual fix is here:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=47e669ce10901dc92960096653d6b22990b5188f

James


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From: Alexander Beregalov <a.beregalov@gmail.com>
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Subject: [PATCH] parisc: decode_exc.c should include kernel.h
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Fix this build error:
arch/parisc/math-emu/decode_exc.c:351: undefined reference to `printk'

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---

 arch/parisc/math-emu/decode_exc.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/math-emu/decode_exc.c
b/arch/parisc/math-emu/decode_exc.c
index 66c8a9f..3ca1c61 100644
--- a/arch/parisc/math-emu/decode_exc.c
+++ b/arch/parisc/math-emu/decode_exc.c
@@ -40,7 +40,7 @@
  * END_DESC
 */


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Hi

Machine is HP j6000.
CPU(s): 2 x PA8700 (PCX-W2) at 750.000000 MHz

gcc version 4.3.3 (Gentoo 4.3.3-r2 p1.1, pie-10.1.5)


Machine hangs before starting rc scripts, but SysRq and C-A-Del work.

All tasks are at __schedule+0x268/0x7bc:


__schedule is at 0x278 in sched.o
plus 268 it is 0x4e0

     454:       2b 60 00 00     addil L%0,dp,r1
                        454: R_PARISC_DPREL21L  rt_sched_class
     458:       34 24 00 00     ldo 0(r1),r4
                        458: R_PARISC_DPREL14R  rt_sched_class
     45c:       48 96 00 28     ldw 14(r4),r22
     460:       08 05 02 5a     copy r5,r26
     464:       e6 c0 20 00     be,l 0(sr4,r22),sr0,r31
     468:       08 1f 02 42     copy r31,rp
     46c:       cb 3c 3f d7     movb,=,n ret0,r25,45c <__schedule+0x1e4>
     470:       0c 80 10 84     ldw 0(r4),r4
     474:       80 d9 28 da     cmpb,=,n r25,r6,8e8 <__schedule+0x670>
     478:       68 b9 08 08     stw r25,404(r5)
     47c:       48 bc 00 70     ldw 38(r5),ret0
     480:       48 bd 00 78     ldw 3c(r5),ret1
     484:       b7 bd 00 02     addi 1,ret1,ret1
     488:       08 1c 07 1c     add,c ret0,r0,ret0
     48c:       68 bc 00 70     stw ret0,38(r5)
     490:       68 bd 00 78     stw ret1,3c(r5)
     494:       0d a0 10 93     ldw 0(r13),r19
     498:       36 73 00 02     ldo 1(r19),r19
     49c:       0d b3 12 80     stw r19,0(r13)
     4a0:       4b 34 01 b0     ldw d8(r25),r20
     4a4:       86 80 22 c8     cmpib,= 0,r20,610 <__schedule+0x398>
     4a8:       48 d5 01 b8     ldw dc(r6),r21
     4ac:       82 95 20 3a     cmpb,=,n r21,r20,4d0 <__schedule+0x258>
     4b0:       4a 9c 00 48     ldw 24(r20),ret0
     4b4:       22 60 0e 01     ldil L%-10000000,r19
     4b8:       0a 7c 0a 3c     add,l ret0,r19,ret0
     4bc:       03 3c 18 40     mtctl ret0,tr1
     4c0:       4a 93 02 d0     ldw 168(r20),r19
     4c4:       00 13 d8 20     mtsp r19,sr3
     4c8:       d6 73 08 21     depw,z r19,30,31,r19
     4cc:       01 13 18 40     mtctl r19,pidr1
     4d0:       48 dc 01 b0     ldw d8(r6),ret0
     4d4:       87 80 22 52     cmpib,=,n 0,ret0,604 <__schedule+0x38c>
     4d8:       e8 00 a0 00     b,l 4e0 <__schedule+0x268>,rp
                        4d8: R_PARISC_PCREL22F  _switch_to
     4dc:       08 06 02 5a     copy r6,r26
     4e0:       08 11 02 44     copy r17,r4
     4e4:       03 c0 08 b3     mfctl tr6,r19
     4e8:       4a 74 00 20     ldw 10(r19),r20
     4ec:       08 1c 02 59     copy ret0,r25
     4f0:       0e 54 20 9a     ldw,s r20(r18),r26
     4f4:       e8 00 a0 00     b,l 4fc <__schedule+0x284>,rp
                        4f4: R_PARISC_PCREL22F  finish_task_switch
     4f8:       0b 44 0a 3a     add,l r4,r26,r26
     4fc:       03 c0 08 bc     mfctl tr6,ret0
     500:       4b 8a 00 20     ldw 10(ret0),r10
     504:       0e 4a 20 93     ldw,s r10(r18),r19
     508:       0a 64 0a 25     add,l r4,r19,r5
     50c:       03 c0 08 bc     mfctl tr6,ret0
     510:       0f 80 10 93     ldw 0(ret0),r19
     514:       4a 74 00 28     ldw 14(r19),r20
     518:       8e 80 60 20     cmpib,> 0,r20,530 <__schedule+0x2b8>
     51c:       48 62 3f d9     ldw -14(r3),rp
     520:       e8 00 a0 00     b,l 528 <__schedule+0x2b0>,rp
                        520: R_PARISC_PCREL22F  __reacquire_kernel_lock

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On Wed, Apr 08, 2009 at 05:03:04PM +0400, Alexander Beregalov wrote:
> Hi
> 
> Machine is HP j6000.
> CPU(s): 2 x PA8700 (PCX-W2) at 750.000000 MHz
> 
> gcc version 4.3.3 (Gentoo 4.3.3-r2 p1.1, pie-10.1.5)
> 
> 
> Machine hangs before starting rc scripts, but SysRq and C-A-Del work.
> 
> All tasks are at __schedule+0x268/0x7bc:
> 

.config?

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2009/4/9 Kyle McMartin <kyle@mcmartin.ca>:
> On Wed, Apr 08, 2009 at 05:03:04PM +0400, Alexander Beregalov wrote:
>> Hi
>>
>> Machine is HP j6000.
>> CPU(s): 2 x PA8700 (PCX-W2) at 750.000000 MHz
>>
>> gcc version 4.3.3 (Gentoo 4.3.3-r2 p1.1, pie-10.1.5)
>>
>>
>> Machine hangs before starting rc scripts, but SysRq and C-A-Del work.
>>
>> All tasks are at __schedule+0x268/0x7bc:
>>
>
> .config?

Sorry, attached.

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From - Thu Nov 08 21:03:58 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.kernel-testers
Subject: Re: 2.6.30-rc1: parisc: system hangs on boot at __schedule()
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Cc: Kyle McMartin <kyle@mcmartin.ca>, linux-parisc@vger.kernel.org,
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To: Alexander Beregalov <a.beregalov@gmail.com>
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On Thu, Apr 09, 2009 at 12:46:15PM +0400, Alexander Beregalov wrote:
> 2009/4/9 Kyle McMartin <kyle@mcmartin.ca>:
> > On Wed, Apr 08, 2009 at 05:03:04PM +0400, Alexander Beregalov wrote:
> >> Hi
> >>
> >> Machine is HP j6000.
> >> CPU(s): 2 x PA8700 (PCX-W2) at 750.000000 MHz
> >>
> >> gcc version 4.3.3 (Gentoo 4.3.3-r2 p1.1, pie-10.1.5)
> >>
> >>
> >> Machine hangs before starting rc scripts, but SysRq and C-A-Del work.
> >>
> >> All tasks are at __schedule+0x268/0x7bc:
> >>
> >
> > .config?
> 
> Sorry, attached.

Thanks, I swapped disks into my j6700 and will try to reproduce.

regards, Kyle
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From - Thu Nov 08 21:03:58 2018
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From: Jukka Taimisto <jukka.taimisto@mail.suomi.net>
Newsgroups: gmane.linux.ports.parisc
Subject: 2.6.30-rc1 hangs on boot
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Hi,

It seems that almost every other boot with 2.6.30-rc1 my HP c3700 with
single PA8700 (PCX-W2) 750MHz cpu hangs with following printed on serial
console: 

[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.30-rc1-jtt (root@billie) (gcc version 4.3.2 (GCC) ) #1 Fr i Apr 10 18:53:40 EEST 2009
[    0.000000] unwind_init: start = 0x4044b144, end = 0x40475174, entries = 10755
[    0.000000] WARNING: Out of order unwind entry!  000000004044cc94 and 000000004044cca4
[    0.000000] WARNING: Out of order unwind entry!  000000004044cca4 and 000000004044ccb4
[    0.000000] FP[0] enabled: Rev 1 Model 19
[    0.000000] The 64-bit Kernel has started...
[    0.000000] console [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: System Map.
[    0.000000] model 00005dc0 00000481 00000000 00000002 77e15312 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000203
[    0.000000] CPUID vers 19 rev 7 (0x00000267)
[    0.000000] capabilities 0x7
[    0.000000] model 9000/785/C3700
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 MB
[    0.000000]  1) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 MB
[    0.000000] Total Memory: 4096 MB
[    0.000000] initrd: 7f99a000-7ffedc88
[    0.000000] initrd: reserving 3f99a000-3ffedc88 (mem_max 100000000)
[    0.000000] LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
[    0.000000] Built 2 zonelists in Zone order, mobility grouping on.  Total pages: 1034240
[    0.000000] Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
[    0.000000] NR_IRQS:128
[    0.000000] PID hash table entries: 4096 (order: 12, 32768 bytes)
[17179569.184000] timer_interrupt(CPU 0): delayed! cycles FFFFFFFFFFE494D4 rem 2A0894  next/now E004EEDA1/E00338275
[6166094260.418448] timer_interrupt(CPU 0): delayed! cycles 15EA6E45DE rem 24C09E next/now E003740A1/23EAA5867F

.config is available at
http://xsquared.no-ip.com:/warehouse/config-linux-2.6.30-rc1

-- 
-Jukka
:wq					jukka.taimisto@iki.fi
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From - Thu Nov 08 21:03:58 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 2.6.30-rc1 hangs on boot
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--/9DWx/yDrRhgMJTb
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On Sat, Apr 11, 2009 at 02:42:19PM +0300, Jukka Taimisto wrote:
> Hi,
> 
> It seems that almost every other boot with 2.6.30-rc1 my HP c3700 with
> single PA8700 (PCX-W2) 750MHz cpu hangs with following printed on serial
> console: 

Another data point:
I tried 2.6.30-rc1-b5 (UP, 64-bit) and that booted on "model 9000/785/J6000"
both times that I tried. Config file is attached.

cheers,
grant

--/9DWx/yDrRhgMJTb
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="config-2.6.30-rc1-b5-J6000-64-UP"

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.30-rc1
# Sat Apr 11 21:56:02 2009
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_IRQ_PER_CPU=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION="-b5"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
# CONFIG_TASK_XACCT is not set
# CONFIG_AUDIT is not set

#
# RCU Subsystem
#
CONFIG_CLASSIC_RCU=y
# CONFIG_TREE_RCU is not set
# CONFIG_PREEMPT_RCU is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_PREEMPT_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_GROUP_SCHED is not set
# CONFIG_CGROUPS is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_RELAY is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
CONFIG_COMPAT_BRK=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
# CONFIG_MARKERS is not set
CONFIG_HAVE_OPROFILE=y
# CONFIG_SLOW_WORK is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_BLOCK=y
# CONFIG_LBD is not set
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
# CONFIG_64BIT is not set
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
# CONFIG_SMP is not set
CONFIG_ARCH_FLATMEM_ENABLE=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_UNEVICTABLE_LRU=y
CONFIG_HAVE_MLOCK=y
CONFIG_HAVE_MLOCKED_PAGE_BIT=y
# CONFIG_HPUX is not set

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
# CONFIG_GSC is not set
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCI_LEGACY is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
CONFIG_PCCARD=y
# CONFIG_PCMCIA_DEBUG is not set
CONFIG_PCMCIA=y
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_PCMCIA_IOCTL=y
CONFIG_CARDBUS=y

#
# PC-card bridges
#
CONFIG_YENTA=y
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
# CONFIG_PD6729 is not set
# CONFIG_I82092 is not set
CONFIG_PCCARD_NONSTATIC=y
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=y
CONFIG_XFRM_SUB_POLICY=y
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=y
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE=m
# CONFIG_NET_IPGRE_BROADCAST is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=m
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CT_ACCT=y
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_EVENTS=y
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CT_PROTO_GRE=m
# CONFIG_NF_CT_PROTO_SCTP is not set
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
# CONFIG_NETFILTER_TPROXY is not set
CONFIG_NETFILTER_XTABLES=y
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
# CONFIG_NETFILTER_XT_TARGET_LED is not set
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
# CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP is not set
# CONFIG_NETFILTER_XT_MATCH_CLUSTER is not set
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_HL=m
# CONFIG_NETFILTER_XT_MATCH_IPRANGE is not set
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
# CONFIG_NETFILTER_XT_MATCH_OWNER is not set
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
CONFIG_NETFILTER_XT_MATCH_REALM=m
# CONFIG_NETFILTER_XT_MATCH_RECENT is not set
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_NF_NAT_SNMP_BASIC=m
CONFIG_NF_NAT_PROTO_GRE=m
CONFIG_NF_NAT_PROTO_UDPLITE=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_PPTP=m
CONFIG_NF_NAT_H323=m
CONFIG_NF_NAT_SIP=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
# CONFIG_VLAN_8021Q_GVRP is not set
# CONFIG_DECNET is not set
CONFIG_LLC=m
CONFIG_LLC2=m
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_NET_SCHED is not set
CONFIG_NET_CLS_ROUTE=y
# CONFIG_DCB is not set

#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
CONFIG_IRDA=m

#
# IrDA protocols
#
CONFIG_IRLAN=m
CONFIG_IRNET=m
CONFIG_IRCOMM=m
CONFIG_IRDA_ULTRA=y

#
# IrDA options
#
# CONFIG_IRDA_CACHE_LAST_LSAP is not set
# CONFIG_IRDA_FAST_RR is not set
# CONFIG_IRDA_DEBUG is not set

#
# Infrared-port device drivers
#

#
# SIR device drivers
#
# CONFIG_IRTTY_SIR is not set

#
# Dongle support
#
# CONFIG_KINGSUN_DONGLE is not set
# CONFIG_KSDAZZLE_DONGLE is not set
# CONFIG_KS959_DONGLE is not set

#
# FIR device drivers
#
# CONFIG_USB_IRDA is not set
# CONFIG_SIGMATEL_FIR is not set
# CONFIG_TOSHIBA_FIR is not set
# CONFIG_VLSI_FIR is not set
# CONFIG_MCS_FIR is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_WIRELESS=y
CONFIG_CFG80211=y
# CONFIG_CFG80211_REG_DEBUG is not set
CONFIG_WIRELESS_OLD_REGULATORY=y
CONFIG_WIRELESS_EXT=y
CONFIG_WIRELESS_EXT_SYSFS=y
CONFIG_LIB80211=m
CONFIG_LIB80211_CRYPT_WEP=m
CONFIG_LIB80211_CRYPT_CCMP=m
CONFIG_LIB80211_CRYPT_TKIP=m
# CONFIG_LIB80211_DEBUG is not set
CONFIG_MAC80211=y

#
# Rate control algorithm selection
#
CONFIG_MAC80211_RC_MINSTREL=y
# CONFIG_MAC80211_RC_DEFAULT_PID is not set
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel"
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
CONFIG_MAC80211_DEBUGFS=y
# CONFIG_MAC80211_DEBUG_MENU is not set
# CONFIG_WIMAX is not set
CONFIG_RFKILL=m
CONFIG_RFKILL_INPUT=m
CONFIG_RFKILL_LEDS=y
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
# CONFIG_PARPORT_SERIAL is not set
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_PC_PCMCIA is not set
# CONFIG_PARPORT_GSC is not set
# CONFIG_PARPORT_AX88796 is not set
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
CONFIG_BLK_DEV=y
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
# CONFIG_BLK_DEV_RAM is not set
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_ISL29003 is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
CONFIG_EEPROM_93CX6=m
CONFIG_HAVE_IDE=y
CONFIG_IDE=y

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_TIMINGS=y
CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_IDE_GD=y
CONFIG_IDE_GD_ATA=y
# CONFIG_IDE_GD_ATAPI is not set
CONFIG_BLK_DEV_IDECS=m
# CONFIG_BLK_DEV_DELKIN is not set
CONFIG_BLK_DEV_IDECD=m
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
CONFIG_IDE_TASK_IOCTL=y
CONFIG_IDE_PROC_FS=y

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
CONFIG_BLK_DEV_CMD64X=m
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
CONFIG_BLK_DEV_PIIX=y
# CONFIG_BLK_DEV_IT8172 is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=m
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
# CONFIG_CHR_DEV_SCH is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_SAS_HOST_SMP=y
# CONFIG_SCSI_SAS_LIBSAS_DEBUG is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_NSP32 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_SRP is not set
CONFIG_SCSI_LOWLEVEL_PCMCIA=y
CONFIG_PCMCIA_AHA152X=m
CONFIG_PCMCIA_FDOMAIN=m
CONFIG_PCMCIA_NINJA_SCSI=m
CONFIG_PCMCIA_QLOGIC=m
CONFIG_PCMCIA_SYM53C500=m
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_SATA_PMP=y
CONFIG_SATA_AHCI=y
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y
# CONFIG_SATA_SVW is not set
CONFIG_ATA_PIIX=y
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SX4 is not set
CONFIG_SATA_SIL=m
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
CONFIG_PATA_CMD640_PCI=y
CONFIG_PATA_CMD64X=m
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
CONFIG_ATA_GENERIC=y
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_MARVELL is not set
CONFIG_PATA_MPIIX=y
CONFIG_PATA_OLDPIIX=y
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_OPTIDMA is not set
CONFIG_PATA_PCMCIA=m
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RZ1000 is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_PDC2027X is not set
CONFIG_PATA_SIL680=m
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set
# CONFIG_PATA_SCH is not set
# CONFIG_MD is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#

#
# Enable only one of the two stacks, unless you know what you are doing
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
CONFIG_COMPAT_NET_DEV_OPS=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=y

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
CONFIG_ICPLUS_PHY=m
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_FIXED_PHY is not set
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
CONFIG_NET_VENDOR_3COM=y
CONFIG_VORTEX=y
# CONFIG_TYPHOON is not set
# CONFIG_ETHOC is not set
# CONFIG_DNET is not set
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_TULIP_NAPI is not set
CONFIG_DE4X5=m
# CONFIG_WINBOND_840 is not set
CONFIG_DM9102=m
CONFIG_ULI526X=m
CONFIG_PCMCIA_XIRCOM=m
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
CONFIG_E100=m
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_R6040 is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SMSC9420 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SC92031 is not set
# CONFIG_NET_POCKET is not set
# CONFIG_ATL2 is not set
CONFIG_NETDEV_1000=y
CONFIG_ACENIC=m
CONFIG_ACENIC_OMIT_TIGON_I=y
# CONFIG_DL2K is not set
CONFIG_E1000=m
# CONFIG_E1000E is not set
# CONFIG_IP1000 is not set
# CONFIG_IGB is not set
# CONFIG_IGBVF is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_R8169 is not set
# CONFIG_SIS190 is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_TIGON3=m
CONFIG_BNX2=m
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_JME is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set

#
# Wireless LAN
#
CONFIG_WLAN_PRE80211=y
CONFIG_STRIP=m
CONFIG_PCMCIA_WAVELAN=m
CONFIG_PCMCIA_NETWAVE=m
CONFIG_WLAN_80211=y
CONFIG_PCMCIA_RAYCS=m
CONFIG_LIBERTAS=m
CONFIG_LIBERTAS_USB=m
# CONFIG_LIBERTAS_CS is not set
# CONFIG_LIBERTAS_SDIO is not set
# CONFIG_LIBERTAS_DEBUG is not set
# CONFIG_LIBERTAS_THINFIRM is not set
CONFIG_ATMEL=m
CONFIG_PCI_ATMEL=m
CONFIG_PCMCIA_ATMEL=m
# CONFIG_AT76C50X_USB is not set
CONFIG_AIRO_CS=m
CONFIG_PCMCIA_WL3501=m
CONFIG_PRISM54=m
CONFIG_USB_ZD1201=m
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_RTL8180 is not set
CONFIG_RTL8187=m
CONFIG_ADM8211=m
# CONFIG_MAC80211_HWSIM is not set
# CONFIG_MWL8K is not set
CONFIG_P54_COMMON=m
CONFIG_P54_USB=m
# CONFIG_P54_PCI is not set
CONFIG_P54_LEDS=y
# CONFIG_ATH5K is not set
# CONFIG_ATH9K is not set
# CONFIG_AR9170_USB is not set
CONFIG_IPW2100=m
# CONFIG_IPW2100_MONITOR is not set
# CONFIG_IPW2100_DEBUG is not set
CONFIG_IPW2200=m
CONFIG_IPW2200_MONITOR=y
CONFIG_IPW2200_RADIOTAP=y
CONFIG_IPW2200_PROMISCUOUS=y
CONFIG_IPW2200_QOS=y
# CONFIG_IPW2200_DEBUG is not set
CONFIG_LIBIPW=m
# CONFIG_LIBIPW_DEBUG is not set
# CONFIG_IWLWIFI is not set
CONFIG_HOSTAP=m
CONFIG_HOSTAP_FIRMWARE=y
CONFIG_HOSTAP_FIRMWARE_NVRAM=y
CONFIG_HOSTAP_PLX=m
CONFIG_HOSTAP_PCI=m
CONFIG_HOSTAP_CS=m
CONFIG_B43=m
CONFIG_B43_PCI_AUTOSELECT=y
CONFIG_B43_PCICORE_AUTOSELECT=y
CONFIG_B43_PCMCIA=y
CONFIG_B43_PIO=y
CONFIG_B43_LEDS=y
CONFIG_B43_RFKILL=y
# CONFIG_B43_DEBUG is not set
# CONFIG_B43LEGACY is not set
CONFIG_ZD1211RW=m
# CONFIG_ZD1211RW_DEBUG is not set
# CONFIG_RT2X00 is not set
CONFIG_HERMES=m
CONFIG_HERMES_CACHE_FW_ON_INIT=y
CONFIG_PLX_HERMES=m
CONFIG_TMD_HERMES=m
CONFIG_NORTEL_HERMES=m
CONFIG_PCI_HERMES=m
CONFIG_PCMCIA_HERMES=m
CONFIG_PCMCIA_SPECTRUM=m

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#

#
# USB Network Adapters
#
CONFIG_USB_CATC=m
CONFIG_USB_KAWETH=m
CONFIG_USB_PEGASUS=m
CONFIG_USB_RTL8150=m
CONFIG_USB_USBNET=m
CONFIG_USB_NET_AX8817X=m
CONFIG_USB_NET_CDCETHER=m
CONFIG_USB_NET_DM9601=m
# CONFIG_USB_NET_SMSC95XX is not set
CONFIG_USB_NET_GL620A=m
CONFIG_USB_NET_NET1080=m
CONFIG_USB_NET_PLUSB=m
CONFIG_USB_NET_MCS7830=m
# CONFIG_USB_NET_RNDIS_HOST is not set
CONFIG_USB_NET_CDC_SUBSET=m
CONFIG_USB_ALI_M5632=y
# CONFIG_USB_AN2720 is not set
CONFIG_USB_BELKIN=y
# CONFIG_USB_ARMLINUX is not set
# CONFIG_USB_EPSON2888 is not set
# CONFIG_USB_KC2190 is not set
# CONFIG_USB_NET_ZAURUS is not set
# CONFIG_USB_HSO is not set
CONFIG_NET_PCMCIA=y
CONFIG_PCMCIA_3C589=m
CONFIG_PCMCIA_3C574=m
CONFIG_PCMCIA_FMVJ18X=m
CONFIG_PCMCIA_PCNET=m
CONFIG_PCMCIA_NMCLAN=m
CONFIG_PCMCIA_SMC91C92=m
CONFIG_PCMCIA_XIRC2PS=m
CONFIG_PCMCIA_AXNET=m
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPP_FILTER is not set
# CONFIG_PPP_ASYNC is not set
# CONFIG_PPP_SYNC_TTY is not set
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
# CONFIG_PPP_MPPE is not set
# CONFIG_PPPOE is not set
# CONFIG_PPPOL2TP is not set
# CONFIG_SLIP is not set
CONFIG_SLHC=m
# CONFIG_NET_FC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
CONFIG_INPUT_POLLDEV=m

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_ATKBD_HP_KEYCODES is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_DEVKMEM=y
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_CS=m
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set

#
# Non-8250 serial port support
#
CONFIG_PDC_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=64
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# PCMCIA character devices
#
# CONFIG_SYNCLINK_CS is not set
# CONFIG_CARDMAN_4000 is not set
# CONFIG_CARDMAN_4040 is not set
# CONFIG_IPWIRELESS is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
CONFIG_I2C=m
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
CONFIG_I2C_I801=m
# CONFIG_I2C_ISCH is not set
CONFIG_I2C_PIIX4=m
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_SIMTEC is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Graphics adapter I2C/DDC channel drivers
#
# CONFIG_I2C_VOODOO3 is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_STUB is not set

#
# Miscellaneous I2C Chip support
#
# CONFIG_DS1682 is not set
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_PCF8575 is not set
# CONFIG_SENSORS_PCA9539 is not set
# CONFIG_SENSORS_MAX6875 is not set
# CONFIG_SENSORS_TSL2550 is not set
CONFIG_I2C_DEBUG_CORE=y
CONFIG_I2C_DEBUG_ALGO=y
CONFIG_I2C_DEBUG_BUS=y
CONFIG_I2C_DEBUG_CHIP=y
# CONFIG_SPI is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=m
CONFIG_HWMON_VID=m
# CONFIG_SENSORS_AD7414 is not set
CONFIG_SENSORS_AD7418=m
CONFIG_SENSORS_ADM1021=m
CONFIG_SENSORS_ADM1025=m
CONFIG_SENSORS_ADM1026=m
CONFIG_SENSORS_ADM1029=m
CONFIG_SENSORS_ADM1031=m
CONFIG_SENSORS_ADM9240=m
# CONFIG_SENSORS_ADT7462 is not set
CONFIG_SENSORS_ADT7470=m
# CONFIG_SENSORS_ADT7473 is not set
# CONFIG_SENSORS_ADT7475 is not set
CONFIG_SENSORS_ATXP1=m
CONFIG_SENSORS_DS1621=m
CONFIG_SENSORS_I5K_AMB=m
CONFIG_SENSORS_F71805F=m
CONFIG_SENSORS_F71882FG=m
CONFIG_SENSORS_F75375S=m
# CONFIG_SENSORS_G760A is not set
CONFIG_SENSORS_GL518SM=m
CONFIG_SENSORS_GL520SM=m
CONFIG_SENSORS_IT87=m
CONFIG_SENSORS_LM63=m
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM80=m
CONFIG_SENSORS_LM83=m
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
CONFIG_SENSORS_LM90=m
CONFIG_SENSORS_LM92=m
CONFIG_SENSORS_LM93=m
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LM95241 is not set
CONFIG_SENSORS_MAX1619=m
CONFIG_SENSORS_MAX6650=m
CONFIG_SENSORS_PC87360=m
CONFIG_SENSORS_PC87427=m
# CONFIG_SENSORS_PCF8591 is not set
CONFIG_SENSORS_SIS5595=m
CONFIG_SENSORS_DME1737=m
CONFIG_SENSORS_SMSC47M1=m
CONFIG_SENSORS_SMSC47M192=m
CONFIG_SENSORS_SMSC47B397=m
# CONFIG_SENSORS_ADS7828 is not set
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_VIA686A=m
CONFIG_SENSORS_VT1211=m
CONFIG_SENSORS_VT8231=m
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
CONFIG_SENSORS_W83L785TS=m
# CONFIG_SENSORS_W83L786NG is not set
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m
CONFIG_HWMON_DEBUG_CHIP=y
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_BLOCKIO=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
CONFIG_SSB_B43_PCI_BRIDGE=y
CONFIG_SSB_PCMCIAHOST_POSSIBLE=y
CONFIG_SSB_PCMCIAHOST=y
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_REGULATOR is not set

#
# Multimedia devices
#

#
# Multimedia core support
#
CONFIG_VIDEO_DEV=m
CONFIG_VIDEO_V4L2_COMMON=m
CONFIG_VIDEO_ALLOW_V4L1=y
CONFIG_VIDEO_V4L1_COMPAT=y
# CONFIG_DVB_CORE is not set
CONFIG_VIDEO_MEDIA=m

#
# Multimedia drivers
#
# CONFIG_MEDIA_ATTACH is not set
CONFIG_MEDIA_TUNER=m
# CONFIG_MEDIA_TUNER_CUSTOMISE is not set
CONFIG_MEDIA_TUNER_SIMPLE=m
CONFIG_MEDIA_TUNER_TDA8290=m
CONFIG_MEDIA_TUNER_TDA9887=m
CONFIG_MEDIA_TUNER_TEA5761=m
CONFIG_MEDIA_TUNER_TEA5767=m
CONFIG_MEDIA_TUNER_MT20XX=m
CONFIG_MEDIA_TUNER_XC2028=m
CONFIG_MEDIA_TUNER_XC5000=m
CONFIG_MEDIA_TUNER_MC44S803=m
CONFIG_VIDEO_V4L2=m
CONFIG_VIDEO_V4L1=m
# CONFIG_VIDEO_CAPTURE_DRIVERS is not set
# CONFIG_RADIO_ADAPTERS is not set
# CONFIG_DAB is not set

#
# Graphics support
#
CONFIG_AGP=y
CONFIG_DRM=m
# CONFIG_DRM_TDFX is not set
CONFIG_DRM_R128=m
CONFIG_DRM_RADEON=m
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_SIS is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_DDC=m
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_STI=y
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
CONFIG_FB_RADEON=m
CONFIG_FB_RADEON_I2C=y
CONFIG_FB_RADEON_BACKLIGHT=y
# CONFIG_FB_RADEON_DEBUG is not set
# CONFIG_FB_ATY128 is not set
CONFIG_FB_ATY=y
CONFIG_FB_ATY_CT=y
CONFIG_FB_ATY_GENERIC_LCD=y
# CONFIG_FB_ATY_GX is not set
CONFIG_FB_ATY_BACKLIGHT=y
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=m
# CONFIG_LCD_ILI9320 is not set
# CONFIG_LCD_PLATFORM is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_GENERIC=y

#
# Display device support
#
CONFIG_DISPLAY_SUPPORT=y

#
# Display hardware drivers
#

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
# CONFIG_FRAMEBUFFER_CONSOLE is not set
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_LOGO is not set
CONFIG_SOUND=y
CONFIG_SOUND_OSS_CORE=y
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_SEQUENCER=y
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_MPU401_UART=m
CONFIG_SND_OPL3_LIB=m
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
CONFIG_SND_DUMMY=m
CONFIG_SND_VIRMIDI=m
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
CONFIG_SND_MPU401=m
# CONFIG_SND_PORTMAN2X4 is not set
CONFIG_SND_AC97_POWER_SAVE=y
CONFIG_SND_AC97_POWER_SAVE_DEFAULT=0
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
CONFIG_SND_ES1968=m
CONFIG_SND_FM801=m
# CONFIG_SND_FM801_TEA575X_BOOL is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
CONFIG_SND_MAESTRO3=m
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
CONFIG_SND_RIPTIDE=m
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
CONFIG_SND_USB=y
CONFIG_SND_USB_AUDIO=m
CONFIG_SND_USB_CAIAQ=m
CONFIG_SND_USB_CAIAQ_INPUT=y
CONFIG_SND_PCMCIA=y
# CONFIG_SND_VXPOCKET is not set
# CONFIG_SND_PDAUDIOCF is not set
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HID_DEBUG is not set
# CONFIG_HIDRAW is not set

#
# USB Input Devices
#
CONFIG_USB_HID=m
# CONFIG_HID_PID is not set
CONFIG_USB_HIDDEV=y

#
# Special HID drivers
#
CONFIG_HID_A4TECH=m
CONFIG_HID_APPLE=m
CONFIG_HID_BELKIN=m
CONFIG_HID_CHERRY=m
CONFIG_HID_CHICONY=m
CONFIG_HID_CYPRESS=m
# CONFIG_DRAGONRISE_FF is not set
CONFIG_HID_EZKEY=m
CONFIG_HID_KYE=m
CONFIG_HID_GYRATION=m
CONFIG_HID_KENSINGTON=m
CONFIG_HID_LOGITECH=m
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
CONFIG_HID_MICROSOFT=m
CONFIG_HID_MONTEREY=m
CONFIG_HID_NTRIG=m
CONFIG_HID_PANTHERLORD=m
# CONFIG_PANTHERLORD_FF is not set
CONFIG_HID_PETALYNX=m
CONFIG_HID_SAMSUNG=m
CONFIG_HID_SONY=m
CONFIG_HID_SUNPLUS=m
# CONFIG_GREENASIA_FF is not set
CONFIG_HID_TOPSEED=m
# CONFIG_THRUSTMASTER_FF is not set
# CONFIG_ZEROPLUS_FF is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
CONFIG_USB_MON=y
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_EHCI_HCD=m
CONFIG_USB_EHCI_ROOT_HUB_TT=y
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_OXU210HP_HCD is not set
CONFIG_USB_ISP116X_HCD=m
# CONFIG_USB_ISP1760_HCD is not set
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_HCD_SSB is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=m
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_WHCI_HCD is not set
# CONFIG_USB_HWA_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
CONFIG_USB_PRINTER=m
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
CONFIG_USB_STORAGE_DATAFAB=m
CONFIG_USB_STORAGE_FREECOM=m
CONFIG_USB_STORAGE_ISD200=m
CONFIG_USB_STORAGE_USBAT=m
CONFIG_USB_STORAGE_SDDR09=m
CONFIG_USB_STORAGE_SDDR55=m
CONFIG_USB_STORAGE_JUMPSHOT=m
CONFIG_USB_STORAGE_ALAUDA=m
CONFIG_USB_STORAGE_ONETOUCH=m
CONFIG_USB_STORAGE_KARMA=m
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
CONFIG_USB_LIBUSUAL=y

#
# USB Imaging devices
#
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m

#
# USB port drivers
#
CONFIG_USB_USS720=m
CONFIG_USB_SERIAL=m
CONFIG_USB_EZUSB=y
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_AIRCABLE=m
CONFIG_USB_SERIAL_ARK3116=m
CONFIG_USB_SERIAL_BELKIN=m
# CONFIG_USB_SERIAL_CH341 is not set
CONFIG_USB_SERIAL_WHITEHEAT=m
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
# CONFIG_USB_SERIAL_CP210X is not set
CONFIG_USB_SERIAL_CYPRESS_M8=m
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_FUNSOFT=m
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
CONFIG_USB_SERIAL_IR=m
CONFIG_USB_SERIAL_EDGEPORT=m
CONFIG_USB_SERIAL_EDGEPORT_TI=m
CONFIG_USB_SERIAL_GARMIN=m
CONFIG_USB_SERIAL_IPW=m
# CONFIG_USB_SERIAL_IUU is not set
CONFIG_USB_SERIAL_KEYSPAN_PDA=m
CONFIG_USB_SERIAL_KEYSPAN=m
CONFIG_USB_SERIAL_KEYSPAN_MPR=y
CONFIG_USB_SERIAL_KEYSPAN_USA28=y
CONFIG_USB_SERIAL_KEYSPAN_USA28X=y
CONFIG_USB_SERIAL_KEYSPAN_USA28XA=y
CONFIG_USB_SERIAL_KEYSPAN_USA28XB=y
CONFIG_USB_SERIAL_KEYSPAN_USA19=y
CONFIG_USB_SERIAL_KEYSPAN_USA18X=y
CONFIG_USB_SERIAL_KEYSPAN_USA19W=y
CONFIG_USB_SERIAL_KEYSPAN_USA19QW=y
CONFIG_USB_SERIAL_KEYSPAN_USA19QI=y
CONFIG_USB_SERIAL_KEYSPAN_USA49W=y
CONFIG_USB_SERIAL_KEYSPAN_USA49WLC=y
CONFIG_USB_SERIAL_KLSI=m
CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
CONFIG_USB_SERIAL_MOS7720=m
CONFIG_USB_SERIAL_MOS7840=m
# CONFIG_USB_SERIAL_MOTOROLA is not set
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=m
CONFIG_USB_SERIAL_OTI6858=m
# CONFIG_USB_SERIAL_QUALCOMM is not set
# CONFIG_USB_SERIAL_SPCP8X5 is not set
CONFIG_USB_SERIAL_HP4X=m
CONFIG_USB_SERIAL_SAFE=m
CONFIG_USB_SERIAL_SAFE_PADDED=y
# CONFIG_USB_SERIAL_SIEMENS_MPI is not set
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
# CONFIG_USB_SERIAL_SYMBOL is not set
CONFIG_USB_SERIAL_TI=m
CONFIG_USB_SERIAL_CYBERJACK=m
CONFIG_USB_SERIAL_XIRCOM=m
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_SERIAL_OMNINET=m
# CONFIG_USB_SERIAL_OPTICON is not set
# CONFIG_USB_SERIAL_DEBUG is not set

#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=m
CONFIG_USB_EMI26=m
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
CONFIG_USB_RIO500=m
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
# CONFIG_USB_BERRY_CHARGE is not set
CONFIG_USB_LED=m
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
CONFIG_USB_TEST=y
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_VST is not set
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_UWB is not set
CONFIG_MMC=m
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_UNSAFE_RESUME is not set

#
# MMC/SD/SDIO Card Drivers
#
CONFIG_MMC_BLOCK=m
CONFIG_MMC_BLOCK_BOUNCE=y
# CONFIG_SDIO_UART is not set
# CONFIG_MMC_TEST is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
CONFIG_MMC_SDHCI=m
# CONFIG_MMC_SDHCI_PCI is not set
CONFIG_MMC_TIFM_SD=m
# CONFIG_MMC_SDRICOH_CS is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=m

#
# LED drivers
#
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_LP5521 is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_BD2802 is not set

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
# CONFIG_LEDS_TRIGGER_IDE_DISK is not set
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set

#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
CONFIG_UIO=y
CONFIG_UIO_CIF=m
# CONFIG_UIO_PDRV is not set
# CONFIG_UIO_PDRV_GENIRQ is not set
# CONFIG_UIO_SMX is not set
# CONFIG_UIO_AEC is not set
# CONFIG_UIO_SERCOS3 is not set
# CONFIG_STAGING is not set

#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
# CONFIG_EXT2_FS_SECURITY is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
# CONFIG_EXT3_FS_SECURITY is not set
CONFIG_EXT4_FS=y
# CONFIG_EXT4DEV_COMPAT is not set
CONFIG_EXT4_FS_XATTR=y
CONFIG_EXT4_FS_POSIX_ACL=y
# CONFIG_EXT4_FS_SECURITY is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_FILE_LOCKING=y
# CONFIG_XFS_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=m

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_NTFS_FS=m
# CONFIG_NTFS_DEBUG is not set
# CONFIG_NTFS_RW is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=m
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
CONFIG_HFS_FS=m
CONFIG_HFSPLUS_FS=m
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_CRAMFS=m
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
CONFIG_NFS_V4=y
CONFIG_NFSD=m
# CONFIG_NFSD_V3 is not set
# CONFIG_NFSD_V4 is not set
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_RPCSEC_GSS_SPKM3 is not set
CONFIG_SMB_FS=m
# CONFIG_SMB_NLS_DEFAULT is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_MINIX_SUBPARTITION is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_LDM_PARTITION is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_ULTRIX_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_KARMA_PARTITION is not set
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
CONFIG_NLS_CODEPAGE_1250=m
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=m
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=y
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=y
# CONFIG_DLM is not set

#
# Kernel hacking
#
CONFIG_PRINTK_TIME=y
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_KERNEL is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_LATENCYTOP is not set
# CONFIG_SYSCTL_SYSCALL_CHECK is not set
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_SAMPLES is not set

#
# Security options
#
CONFIG_KEYS=y
CONFIG_KEYS_DEBUG_PROC_KEYS=y
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
# CONFIG_CRYPTO_FIPS is not set
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=m
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_SEQIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CTR=m
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=m
CONFIG_CRYPTO_XCBC=m

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=m
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=y
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_ZLIB is not set
CONFIG_CRYPTO_LZO=m

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_LAST_BIT=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=m
CONFIG_LZO_DECOMPRESS=m
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y

--/9DWx/yDrRhgMJTb--
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From - Thu Nov 08 21:03:58 2018
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Alexander Beregalov <a.beregalov@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 2.6.30-rc1 hangs on boot
Date: Mon, 13 Apr 2009 07:53:39 +0400
Lines: 20
Approved: news@gmane.org
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2009/4/13 Grant Grundler <grundler@parisc-linux.org>:
> On Sat, Apr 11, 2009 at 02:42:19PM +0300, Jukka Taimisto wrote:
>> Hi,
>>
>> It seems that almost every other boot with 2.6.30-rc1 my HP c3700 with
>> single PA8700 (PCX-W2) 750MHz cpu hangs with following printed on serial
>> console:
>
> Another data point:
> I tried 2.6.30-rc1-b5 (UP, 64-bit) and that booted on "model 9000/785/J6000"
> both times that I tried. Config file is attached.

Hi Grant,
# CONFIG_64BIT is not set
in your config
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On Mon, Apr 13, 2009 at 07:53:39AM +0400, Alexander Beregalov wrote:
> 2009/4/13 Grant Grundler <grundler@parisc-linux.org>:
> > On Sat, Apr 11, 2009 at 02:42:19PM +0300, Jukka Taimisto wrote:
> >> Hi,
> >>
> >> It seems that almost every other boot with 2.6.30-rc1 my HP c3700 with
> >> single PA8700 (PCX-W2) 750MHz cpu hangs with following printed on serial
> >> console:
> >
> > Another data point:
> > I tried 2.6.30-rc1-b5 (UP, 64-bit) and that booted on "model 9000/785/J6000"
> > both times that I tried. Config file is attached.
> 
> Hi Grant,
> # CONFIG_64BIT is not set
> in your config

Oopps....my bad. Sorry. That's obviously a 32-bit kernel.
I must have checked uname output on the wrong machine. :(

thanks for catching that,
grant

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Subject: Re: 2.6.30-rc1 hangs on boot
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On Sun, 2009-04-12 at 23:04 -0600, Grant Grundler wrote:
> On Mon, Apr 13, 2009 at 07:53:39AM +0400, Alexander Beregalov wrote:
> > 2009/4/13 Grant Grundler <grundler@parisc-linux.org>:
> > > On Sat, Apr 11, 2009 at 02:42:19PM +0300, Jukka Taimisto wrote:
> > >> Hi,
> > >>
> > >> It seems that almost every other boot with 2.6.30-rc1 my HP c3700 with
> > >> single PA8700 (PCX-W2) 750MHz cpu hangs with following printed on serial
> > >> console:
> > >
> > > Another data point:
> > > I tried 2.6.30-rc1-b5 (UP, 64-bit) and that booted on "model 9000/785/J6000"
> > > both times that I tried. Config file is attached.
> > 
> > Hi Grant,
> > # CONFIG_64BIT is not set
> > in your config
> 
> Oopps....my bad. Sorry. That's obviously a 32-bit kernel.
> I must have checked uname output on the wrong machine. :(
> 
> thanks for catching that,
> grant

A 64 bit kernel definitely works for me on ion (a pa8900 box):

Linux ion 2.6.30-rc1 #2 SMP Sat Apr 11 08:57:03 PDT 2009 parisc64

The tg3 seems to be having some difficulty coming up, but it looks like
it's an eth device aliasing problem.

James


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From - Thu Nov 08 21:03:59 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH] parisc: decode_exc.c should include kernel.h
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To: Alexander Beregalov <a.beregalov@gmail.com>
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On Mon, Apr 06, 2009 at 01:29:58PM +0400, Alexander Beregalov wrote:
> Fix this build error:
> arch/parisc/math-emu/decode_exc.c:351: undefined reference to `printk'
> 
> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
>

Thanks, applied.
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From - Thu Nov 08 21:03:59 2018
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Subject: [PATCH] tg3: fix big endian MAC address collection failure
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Cc: Parisc List <linux-parisc@vger.kernel.org>,
	Matt Carlson <mcarlson@broadcom.com>,
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We noticed on parisc that our broadcoms all swapped MAC addresses going
from 2.6.29 to 2.6.30-rc1:

Apr 11 07:48:24 ion kernel: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:30:6e:4b:15:59
Apr 13 07:34:34 ion kernel: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:00:59:15:4b:6e

The problem patch is:

commit 6d348f2c1e0bb1cf7a494b51fc921095ead3f6ae
Author: Matt Carlson <mcarlson@broadcom.com>
Date:   Wed Feb 25 14:25:52 2009 +0000

    tg3: Eliminate tg3_nvram_read_swab()

With the root cause being the use of memcpy to set the mac address:

   memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
   memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));

This might work on little endian machines, but it can't on big endian
ones.  You have to use the original setting mechanism to be correct on
all architectures.

The attached patch fixes parisc.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

---

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 6a736dd..7a837c4 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -12443,8 +12443,13 @@ static int __devinit tg3_get_device_address(struct tg3 *tp)
 		/* Next, try NVRAM. */
 		if (!tg3_nvram_read_be32(tp, mac_offset + 0, &hi) &&
 		    !tg3_nvram_read_be32(tp, mac_offset + 4, &lo)) {
-			memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
-			memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));
+			dev->dev_addr[0] = ((hi >> 16) & 0xff);
+			dev->dev_addr[1] = ((hi >> 24) & 0xff);
+			dev->dev_addr[2] = ((lo >>  0) & 0xff);
+			dev->dev_addr[3] = ((lo >>  8) & 0xff);
+			dev->dev_addr[4] = ((lo >> 16) & 0xff);
+			dev->dev_addr[5] = ((lo >> 24) & 0xff);
+
 		}
 		/* Finally just fetch it out of the MAC control regs. */
 		else {



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From - Thu Nov 08 21:03:59 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: [PATCH] tg3: fix big endian MAC address collection failure
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[sorry for repost; wrong netdev address first time around]

We noticed on parisc that our broadcoms all swapped MAC addresses going
from 2.6.29 to 2.6.30-rc1:

Apr 11 07:48:24 ion kernel: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:30:6e:4b:15:59
Apr 13 07:34:34 ion kernel: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:00:59:15:4b:6e

The problem patch is:

commit 6d348f2c1e0bb1cf7a494b51fc921095ead3f6ae
Author: Matt Carlson <mcarlson@broadcom.com>
Date:   Wed Feb 25 14:25:52 2009 +0000

    tg3: Eliminate tg3_nvram_read_swab()

With the root cause being the use of memcpy to set the mac address:

   memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
   memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));

This might work on little endian machines, but it can't on big endian
ones.  You have to use the original setting mechanism to be correct on
all architectures.

The attached patch fixes parisc.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

---

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 6a736dd..7a837c4 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -12443,8 +12443,13 @@ static int __devinit tg3_get_device_address(struct tg3 *tp)
 		/* Next, try NVRAM. */
 		if (!tg3_nvram_read_be32(tp, mac_offset + 0, &hi) &&
 		    !tg3_nvram_read_be32(tp, mac_offset + 4, &lo)) {
-			memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
-			memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));
+			dev->dev_addr[0] = ((hi >> 16) & 0xff);
+			dev->dev_addr[1] = ((hi >> 24) & 0xff);
+			dev->dev_addr[2] = ((lo >>  0) & 0xff);
+			dev->dev_addr[3] = ((lo >>  8) & 0xff);
+			dev->dev_addr[4] = ((lo >> 16) & 0xff);
+			dev->dev_addr[5] = ((lo >> 24) & 0xff);
+
 		}
 		/* Finally just fetch it out of the MAC control regs. */
 		else {



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From: Thibaut VARENE <varenet@parisc-linux.org>
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Subject: Re: 2.6.30-rc1 hangs on boot
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On Sat, Apr 11, 2009 at 1:42 PM, Jukka Taimisto
<jukka.taimisto@mail.suomi.net> wrote:
> Hi,
>
> It seems that almost every other boot with 2.6.30-rc1 my HP c3700 wit=
h
> single PA8700 (PCX-W2) 750MHz cpu hangs with following printed on ser=
ial
> console:

> [17179569.184000] timer_interrupt(CPU 0): delayed! cycles FFFFFFFFFFE=
494D4 rem 2A0894 =C2=A0next/now E004EEDA1/E00338275
> [6166094260.418448] timer_interrupt(CPU 0): delayed! cycles 15EA6E45D=
E rem 24C09E next/now E003740A1/23EAA5867F

I've seen that happening randomly on my A500 SMP 64bit, and it goes
way back with old kernels (2.6.19-ish, maybe even before). Very
random, but certainly not new.

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:03:59 2018
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From: "Matt Carlson" <mcarlson@broadcom.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
Date: Mon, 13 Apr 2009 11:00:52 -0700
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Hi James.  I'd like to think about this some more before we apply it.  I
investigated this problem using a 5703 on a SPARC Ultra 10, and all my
assumptions checked out.  I don't dispute that you and Robin are having
a problem.  I just don't understand where the root cause of the problem
is yet.  Stay tuned.

On Mon, Apr 13, 2009 at 08:21:50AM -0700, James Bottomley wrote:
> We noticed on parisc that our broadcoms all swapped MAC addresses going
> from 2.6.29 to 2.6.30-rc1:
> 
> Apr 11 07:48:24 ion kernel: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:30:6e:4b:15:59
> Apr 13 07:34:34 ion kernel: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:00:59:15:4b:6e
> 
> The problem patch is:
> 
> commit 6d348f2c1e0bb1cf7a494b51fc921095ead3f6ae
> Author: Matt Carlson <mcarlson@broadcom.com>
> Date:   Wed Feb 25 14:25:52 2009 +0000
> 
>     tg3: Eliminate tg3_nvram_read_swab()
> 
> With the root cause being the use of memcpy to set the mac address:
> 
>    memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
>    memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));
> 
> This might work on little endian machines, but it can't on big endian
> ones.  You have to use the original setting mechanism to be correct on
> all architectures.
> 
> The attached patch fixes parisc.
> 
> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
> 
> ---
> 
> diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
> index 6a736dd..7a837c4 100644
> --- a/drivers/net/tg3.c
> +++ b/drivers/net/tg3.c
> @@ -12443,8 +12443,13 @@ static int __devinit tg3_get_device_address(struct tg3 *tp)
>  		/* Next, try NVRAM. */
>  		if (!tg3_nvram_read_be32(tp, mac_offset + 0, &hi) &&
>  		    !tg3_nvram_read_be32(tp, mac_offset + 4, &lo)) {
> -			memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
> -			memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));
> +			dev->dev_addr[0] = ((hi >> 16) & 0xff);
> +			dev->dev_addr[1] = ((hi >> 24) & 0xff);
> +			dev->dev_addr[2] = ((lo >>  0) & 0xff);
> +			dev->dev_addr[3] = ((lo >>  8) & 0xff);
> +			dev->dev_addr[4] = ((lo >> 16) & 0xff);
> +			dev->dev_addr[5] = ((lo >> 24) & 0xff);
> +
>  		}
>  		/* Finally just fetch it out of the MAC control regs. */
>  		else {
> 
> 
> 
> 

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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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On Mon, Apr 13, 2009 at 11:00:52AM -0700, Matt Carlson wrote:
> Hi James.  I'd like to think about this some more before we apply it.  I
> investigated this problem using a 5703 on a SPARC Ultra 10, and all my
> assumptions checked out.  I don't dispute that you and Robin are having
> a problem.  I just don't understand where the root cause of the problem
> is yet.  Stay tuned.
> 

Did your card in the sparc have an openfirmware ROM? If so, it probably
used the ofw tree to obtain parameters instead of the card nvram...

regards, Kyle
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Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
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On Mon, Apr 13, 2009 at 11:04:26AM -0700, Kyle McMartin wrote:
> On Mon, Apr 13, 2009 at 11:00:52AM -0700, Matt Carlson wrote:
> > Hi James.  I'd like to think about this some more before we apply it.  I
> > investigated this problem using a 5703 on a SPARC Ultra 10, and all my
> > assumptions checked out.  I don't dispute that you and Robin are having
> > a problem.  I just don't understand where the root cause of the problem
> > is yet.  Stay tuned.
> > 
> 
> Did your card in the sparc have an openfirmware ROM? If so, it probably
> used the ofw tree to obtain parameters instead of the card nvram...

No, the test was run using a NIC.

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
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On Mon, 2009-04-13 at 11:00 -0700, Matt Carlson wrote:
> Hi James.  I'd like to think about this some more before we apply it.  I
> investigated this problem using a 5703 on a SPARC Ultra 10, and all my
> assumptions checked out.

Um, I think you'll find the SPARC has a special routine for extracting
the MAC address from Open Firmware, so it doesn't exercise the NVRAM
path.

>   I don't dispute that you and Robin are having
> a problem.  I just don't understand where the root cause of the problem
> is yet.  Stay tuned.

The root cause is basically that if you get the MAC from NVRAM into two
native 32 bit words, you have to be careful about how you convert them
to a byte stream for the MAC address.  You can't use a memcpy from the
native number to the MAC because it's not endian invariant (it copies
the numbers the opposite ways around on big and little endian boxes).

James


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On Mon, 2009-04-13 at 11:13 -0700, Matt Carlson wrote:
> On Mon, Apr 13, 2009 at 11:04:26AM -0700, Kyle McMartin wrote:
> > On Mon, Apr 13, 2009 at 11:00:52AM -0700, Matt Carlson wrote:
> > > Hi James.  I'd like to think about this some more before we apply it.  I
> > > investigated this problem using a 5703 on a SPARC Ultra 10, and all my
> > > assumptions checked out.  I don't dispute that you and Robin are having
> > > a problem.  I just don't understand where the root cause of the problem
> > > is yet.  Stay tuned.
> > > 
> > 
> > Did your card in the sparc have an openfirmware ROM? If so, it probably
> > used the ofw tree to obtain parameters instead of the card nvram...
> 
> No, the test was run using a NIC.

Possibly, then, the MAC comes from the MBOX, which looks correct?

tg3_get_device_address() has four mechanisms to get the mac address

     1. A sparc specific open firmware boot mac
     2. The card mac mbox
     3. the NVRAM (this is the failing one)
     4. a sparc specific default fallback if none of the above worked

The mbox route doesn't have a memcpy, only the NVRAM one.

James


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From - Thu Nov 08 21:04:00 2018
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Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
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On Mon, Apr 13, 2009 at 11:18:37AM -0700, James Bottomley wrote:
> On Mon, 2009-04-13 at 11:13 -0700, Matt Carlson wrote:
> > On Mon, Apr 13, 2009 at 11:04:26AM -0700, Kyle McMartin wrote:
> > > On Mon, Apr 13, 2009 at 11:00:52AM -0700, Matt Carlson wrote:
> > > > Hi James.  I'd like to think about this some more before we apply it.  I
> > > > investigated this problem using a 5703 on a SPARC Ultra 10, and all my
> > > > assumptions checked out.  I don't dispute that you and Robin are having
> > > > a problem.  I just don't understand where the root cause of the problem
> > > > is yet.  Stay tuned.
> > > > 
> > > 
> > > Did your card in the sparc have an openfirmware ROM? If so, it probably
> > > used the ofw tree to obtain parameters instead of the card nvram...
> > 
> > No, the test was run using a NIC.
> 
> Possibly, then, the MAC comes from the MBOX, which looks correct?
> 
> tg3_get_device_address() has four mechanisms to get the mac address
> 
>      1. A sparc specific open firmware boot mac
>      2. The card mac mbox
>      3. the NVRAM (this is the failing one)
>      4. a sparc specific default fallback if none of the above worked
> 
> The mbox route doesn't have a memcpy, only the NVRAM one.
> 
> James

On this particular adapter, the MAC address would be obtained through
shared memory.  I had to modify the driver to force the code to obtain
the MAC address through NVRAM.  I printed both MAC addresses and they match.

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From - Thu Nov 08 21:04:00 2018
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On Mon, Apr 13, 2009 at 11:15:16AM -0700, James Bottomley wrote:
> On Mon, 2009-04-13 at 11:00 -0700, Matt Carlson wrote:
> > Hi James.  I'd like to think about this some more before we apply it.  I
> > investigated this problem using a 5703 on a SPARC Ultra 10, and all my
> > assumptions checked out.
> 
> Um, I think you'll find the SPARC has a special routine for extracting
> the MAC address from Open Firmware, so it doesn't exercise the NVRAM
> path.

Yes, it does.  The driver moves beyond that point because the routine
fails on this system.  (It's really old and doesn't have a Broadcom LOM
on it.)

> >   I don't dispute that you and Robin are having
> > a problem.  I just don't understand where the root cause of the problem
> > is yet.  Stay tuned.
> 
> The root cause is basically that if you get the MAC from NVRAM into two
> native 32 bit words, you have to be careful about how you convert them
> to a byte stream for the MAC address.  You can't use a memcpy from the
> native number to the MAC because it's not endian invariant (it copies
> the numbers the opposite ways around on big and little endian boxes).
> 
> James

But that is exactly what the code is doing.  tg3_nvram_read_be32() will
return the data in bytestream format.  A memcpy() should be all that is
needed to transport the data to a different memory location.

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Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
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On Mon, 2009-04-13 at 11:37 -0700, Matt Carlson wrote:
> But that is exactly what the code is doing.  tg3_nvram_read_be32() will
> return the data in bytestream format.  A memcpy() should be all that is
> needed to transport the data to a different memory location.

But not the one you've done.  cpu_to_be32 is a nop pass through on our
architecture, so tg3_nvram_read_be32 is equivalent to tg3_nvram_read on
our architecture (i.e. identical to the code that was doing the read in
2.6.29).  However, the memcpy is the wrong way around for us.  If you
look at an example, the original code said

dev_addr[0] = hi >> 16;
dev_addr[1] = hi >> 24

So MSB-1 and MSB.  However, on a BE machine these are at offset one and
zero from the start of the word.  The replacement memcopy is:

memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2)

i.e. offset 3 and 4, which actually copies LSB-1 and LSB into there.
You can follow similar logic to show that the lo copy is wrong too.

Perhaps the fix is just to put the tg3_nvram_read() back as well as the
original by loads?

James



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Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Mon, 13 Apr 2009 15:29:54 +0000

> We noticed on parisc that our broadcoms all swapped MAC addresses going
> from 2.6.29 to 2.6.30-rc1:
> 
> Apr 11 07:48:24 ion kernel: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:30:6e:4b:15:59
> Apr 13 07:34:34 ion kernel: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:00:59:15:4b:6e
> 
> The problem patch is:
> 
> commit 6d348f2c1e0bb1cf7a494b51fc921095ead3f6ae
> Author: Matt Carlson <mcarlson@broadcom.com>
> Date:   Wed Feb 25 14:25:52 2009 +0000
> 
>     tg3: Eliminate tg3_nvram_read_swab()
> 
> With the root cause being the use of memcpy to set the mac address:
> 
>    memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
>    memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));
> 
> This might work on little endian machines, but it can't on big endian
> ones.  You have to use the original setting mechanism to be correct on
> all architectures.
> 
> The attached patch fixes parisc.
> 
> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

I'm applying this, thanks a lot James!
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On Mon, 2009-04-13 at 14:32 -0700, David Miller wrote:
> From: James Bottomley <James.Bottomley@HansenPartnership.com>
> Date: Mon, 13 Apr 2009 15:29:54 +0000
> 
> > We noticed on parisc that our broadcoms all swapped MAC addresses going
> > from 2.6.29 to 2.6.30-rc1:
> > 
> > Apr 11 07:48:24 ion kernel: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:30:6e:4b:15:59
> > Apr 13 07:34:34 ion kernel: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:00:59:15:4b:6e
> > 
> > The problem patch is:
> > 
> > commit 6d348f2c1e0bb1cf7a494b51fc921095ead3f6ae
> > Author: Matt Carlson <mcarlson@broadcom.com>
> > Date:   Wed Feb 25 14:25:52 2009 +0000
> > 
> >     tg3: Eliminate tg3_nvram_read_swab()
> > 
> > With the root cause being the use of memcpy to set the mac address:
> > 
> >    memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
> >    memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));
> > 
> > This might work on little endian machines, but it can't on big endian
> > ones.  You have to use the original setting mechanism to be correct on
> > all architectures.
> > 
> > The attached patch fixes parisc.
> > 
> > Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
> 
> I'm applying this, thanks a lot James!

Actually, hang on ... I fat fingered the list address first time around
and we've been replying on the wrong list.

Michael apparently has the code working for sparc and we're all a bit
stumped why it doesn't work on parisc since they should follow identical
code paths.

This is the latest state of play:

---
On Mon, 2009-04-13 at 11:37 -0700, Matt Carlson wrote:
> But that is exactly what the code is doing.  tg3_nvram_read_be32() will
> return the data in bytestream format.  A memcpy() should be all that is
> needed to transport the data to a different memory location.

But not the one you've done.  cpu_to_be32 is a nop pass through on our
architecture, so tg3_nvram_read_be32 is equivalent to tg3_nvram_read on
our architecture (i.e. identical to the code that was doing the read in
2.6.29).  However, the memcpy is the wrong way around for us.  If you
look at an example, the original code said

dev_addr[0] = hi >> 16;
dev_addr[1] = hi >> 24

So MSB-1 and MSB.  However, on a BE machine these are at offset one and
zero from the start of the word.  The replacement memcopy is:

memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2)

i.e. offset 3 and 4, which actually copies LSB-1 and LSB into there.
You can follow similar logic to show that the lo copy is wrong too.

Perhaps the fix is just to put the tg3_nvram_read() back as well as the
original by loads?
---

James


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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Mon, 13 Apr 2009 21:42:31 +0000

> Actually, hang on ... I fat fingered the list address first time around
> and we've been replying on the wrong list.
> 
> Michael apparently has the code working for sparc and we're all a bit
> stumped why it doesn't work on parisc since they should follow identical
> code paths.
> 
> This is the latest state of play:

Too late, I already pushed out to my net-2.6 tree on kernel.org

You'll need to send me any fixups relative to this patch.

Thanks.
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On Mon, 2009-04-13 at 14:42 -0700, James Bottomley wrote:

> ---
> On Mon, 2009-04-13 at 11:37 -0700, Matt Carlson wrote:
> > But that is exactly what the code is doing.  tg3_nvram_read_be32() will
> > return the data in bytestream format.  A memcpy() should be all that is
> > needed to transport the data to a different memory location.
> 
> But not the one you've done.  cpu_to_be32 is a nop pass through on our
> architecture, so tg3_nvram_read_be32 is equivalent to tg3_nvram_read on
> our architecture (i.e. identical to the code that was doing the read in
> 2.6.29).  However, the memcpy is the wrong way around for us.  If you
> look at an example, the original code said

The old tg3_nvram_read() had a swab32() after the readl().  The new
tg3_nvram_read() no longer has the swab32().  There were too many layers
of swapping in the old code and that's why Matt wanted to clean it up.

James, can do dump out the nvram content on the parisc?

ethtool -e eth0 length 0x90

Thanks.

> 
> dev_addr[0] = hi >> 16;
> dev_addr[1] = hi >> 24
> 
> So MSB-1 and MSB.  However, on a BE machine these are at offset one and
> zero from the start of the word.  The replacement memcopy is:
> 
> memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2)
> 
> i.e. offset 3 and 4, which actually copies LSB-1 and LSB into there.
> You can follow similar logic to show that the lo copy is wrong too.
> 
> Perhaps the fix is just to put the tg3_nvram_read() back as well as the
> original by loads?
> ---
> 
> James
> 
> 
> 


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On Mon, 2009-04-13 at 15:17 -0700, Michael Chan wrote:
> On Mon, 2009-04-13 at 14:42 -0700, James Bottomley wrote:
> 
> > ---
> > On Mon, 2009-04-13 at 11:37 -0700, Matt Carlson wrote:
> > > But that is exactly what the code is doing.  tg3_nvram_read_be32() will
> > > return the data in bytestream format.  A memcpy() should be all that is
> > > needed to transport the data to a different memory location.
> > 
> > But not the one you've done.  cpu_to_be32 is a nop pass through on our
> > architecture, so tg3_nvram_read_be32 is equivalent to tg3_nvram_read on
> > our architecture (i.e. identical to the code that was doing the read in
> > 2.6.29).  However, the memcpy is the wrong way around for us.  If you
> > look at an example, the original code said
> 
> The old tg3_nvram_read() had a swab32() after the readl().  The new
> tg3_nvram_read() no longer has the swab32().  There were too many layers
> of swapping in the old code and that's why Matt wanted to clean it up.
> 
> James, can do dump out the nvram content on the parisc?
> 
> ethtool -e eth0 length 0x90
> 
> Thanks.

Sure, ion's is

ion:~# ethtool -e eth0 length 0x90
Address         Data
----------      ----
0x00000000      0xaa
0x00000001      0x55
0x00000002      0x99
0x00000003      0x66
0x00000004      0x00
0x00000005      0x00
0x00000006      0x00
0x00000007      0x08
0x00000008      0x29
0x00000009      0x02
0x0000000a      0x00
0x0000000b      0x00
0x0000000c      0x00
0x0000000d      0x02
0x0000000e      0x00
0x0000000f      0x00
0x00000010      0xc5
0x00000011      0x3c
0x00000012      0x82
0x00000013      0x9b
0x00000014      0x00
0x00000015      0x00
0x00000016      0x00
0x00000017      0x00
0x00000018      0x00
0x00000019      0x00
0x0000001a      0x00
0x0000001b      0x00
0x0000001c      0x00
0x0000001d      0x00
0x0000001e      0x00
0x0000001f      0x00
0x00000020      0x00
0x00000021      0x00
0x00000022      0x00
0x00000023      0x00
0x00000024      0x00
0x00000025      0x00
0x00000026      0x00
0x00000027      0x00
0x00000028      0x00
0x00000029      0x00
0x0000002a      0x00
0x0000002b      0x00
0x0000002c      0x00
0x0000002d      0x00
0x0000002e      0x00
0x0000002f      0x00
0x00000030      0x00
0x00000031      0x00
0x00000032      0x00
0x00000033      0x00
0x00000034      0x00
0x00000035      0x00
0x00000036      0x00
0x00000037      0x00
0x00000038      0x00
0x00000039      0x00
0x0000003a      0x00
0x0000003b      0x00
0x0000003c      0x00
0x0000003d      0x00
0x0000003e      0x00
0x0000003f      0x00
0x00000040      0x00
0x00000041      0x00
0x00000042      0x00
0x00000043      0x00
0x00000044      0x00
0x00000045      0x00
0x00000046      0x00
0x00000047      0x00
0x00000048      0x00
0x00000049      0x00
0x0000004a      0x00
0x0000004b      0x00
0x0000004c      0x00
0x0000004d      0x00
0x0000004e      0x00
0x0000004f      0x00
0x00000050      0x00
0x00000051      0x00
0x00000052      0x00
0x00000053      0x00
0x00000054      0x00
0x00000055      0x00
0x00000056      0x00
0x00000057      0x00
0x00000058      0x00
0x00000059      0x00
0x0000005a      0x00
0x0000005b      0x00
0x0000005c      0x00
0x0000005d      0x00
0x0000005e      0x00
0x0000005f      0x00
0x00000060      0x00
0x00000061      0x00
0x00000062      0x00
0x00000063      0x00
0x00000064      0x00
0x00000065      0x00
0x00000066      0x00
0x00000067      0x00
0x00000068      0x00
0x00000069      0x00
0x0000006a      0x00
0x0000006b      0x00
0x0000006c      0x00
0x0000006d      0x00
0x0000006e      0x00
0x0000006f      0x00
0x00000070      0x00
0x00000071      0x00
0x00000072      0x00
0x00000073      0x00
0x00000074      0x8c
0x00000075      0x00
0x00000076      0x00
0x00000077      0x43
0x00000078      0x10
0x00000079      0x61
0x0000007a      0x20
0x0000007b      0x00
0x0000007c      0x30
0x0000007d      0x00
0x0000007e      0x00
0x0000007f      0x00
0x00000080      0x59
0x00000081      0x15
0x00000082      0x4b
0x00000083      0x6e
0x00000084      0x39
0x00000085      0x4d
0x00000086      0x43
0x00000087      0x42
0x00000088      0x30
0x00000089      0x30
0x0000008a      0x37
0x0000008b      0x35
0x0000008c      0x00
0x0000008d      0x00
0x0000008e      0x36
0x0000008f      0x41

James


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Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
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Sorry for the delay.  I just ran the same experiment on an ia64 we have
in-house.  The results were the same.  The machine was a HP integrity
BL870C pre-production blade with dual 5704S LOMs.  More responses
inline.

On Mon, Apr 13, 2009 at 01:48:18PM -0700, James Bottomley wrote:
> On Mon, 2009-04-13 at 11:37 -0700, Matt Carlson wrote:
> > But that is exactly what the code is doing.  tg3_nvram_read_be32() will
> > return the data in bytestream format.  A memcpy() should be all that is
> > needed to transport the data to a different memory location.
> 
> But not the one you've done.  cpu_to_be32 is a nop pass through on our
> architecture, so tg3_nvram_read_be32 is equivalent to tg3_nvram_read on
> our architecture (i.e. identical to the code that was doing the read in
> 2.6.29).

tg3_nvram_read() returns a 32-bit word of NVRAM data, swapped according to
the byteswapping rules for all register accesses.  On big endian machines,
the data returned will be exactly as it would have been in NVRAM.  On
little endian machines, the data will be swapped when compared to a raw
read of the NVRAM.  To bring the data back to a bytestream format on LE
systems, a swap is needed.  After that, a memcpy should be all that is
required to extract the MAC address.

Code that operates on data in a bytestream format will necessarily look
different than code that operates on data as a 32-bit native endian
quantity.  The code changes can look a bit drastic and are easily
culpable at first glance.

> However, the memcpy is the wrong way around for us.

It shouldn't be, and that is the problem.  We are trying to determine
why the data isn't in the form we think it should be in.  The most
difficult part of this discussion is convincing ourselves that the end
result is the same, even though the path to get there changes in
significant ways.

The old code read the data from NVRAM, did a blind swap of the data and
then operated on that data as a 32-bit quantity.  The blind swap was
completely superfluous and only changed which byte the driver attempted
to get its data.  An important property of this version is that the
same code when working with machines of either endianness.

If you are with me this far, then hopefully you can see that, while the
two versions of the code appear different, they wind up with the same
result.  The change was made because the code became much more readable
when we describe the operations as a bytestream.

> If you look at an example, the original code said
> 
> dev_addr[0] = hi >> 16;
> dev_addr[1] = hi >> 24
> 
> So MSB-1 and MSB.  However, on a BE machine these are at offset one and
> zero from the start of the word.  The replacement memcopy is:
> 
> memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2)
> 
> i.e. offset 3 and 4, which actually copies LSB-1 and LSB into there.
> You can follow similar logic to show that the lo copy is wrong too.

Yes.  The code will be different depending on whether you treat the data
as a native endian 32-bit word or as a 4 byte segment of a bytestream.

> Perhaps the fix is just to put the tg3_nvram_read() back as well as the
> original by loads?

The code is much more readable with the changes in place.  I'd rather
not back them out.  I'd like to find out why you are getting different
results than I am with my tests.

I just saw your NVRAM dump post.  Perhaps that'll shed some light on the
matter.

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From: "Matt Carlson" <mcarlson@broadcom.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network
Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
Date: Mon, 13 Apr 2009 18:25:48 -0700
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On Mon, Apr 13, 2009 at 03:32:14PM -0700, James Bottomley wrote:
> On Mon, 2009-04-13 at 15:17 -0700, Michael Chan wrote:
> > On Mon, 2009-04-13 at 14:42 -0700, James Bottomley wrote:
> > 
> > > ---
> > > On Mon, 2009-04-13 at 11:37 -0700, Matt Carlson wrote:
> > > > But that is exactly what the code is doing.  tg3_nvram_read_be32() will
> > > > return the data in bytestream format.  A memcpy() should be all that is
> > > > needed to transport the data to a different memory location.
> > > 
> > > But not the one you've done.  cpu_to_be32 is a nop pass through on our
> > > architecture, so tg3_nvram_read_be32 is equivalent to tg3_nvram_read on
> > > our architecture (i.e. identical to the code that was doing the read in
> > > 2.6.29).  However, the memcpy is the wrong way around for us.  If you
> > > look at an example, the original code said
> > 
> > The old tg3_nvram_read() had a swab32() after the readl().  The new
> > tg3_nvram_read() no longer has the swab32().  There were too many layers
> > of swapping in the old code and that's why Matt wanted to clean it up.
> > 
> > James, can do dump out the nvram content on the parisc?
> > 
> > ethtool -e eth0 length 0x90
> > 
> > Thanks.
> 
> Sure, ion's is
> 
> ion:~# ethtool -e eth0 length 0x90
> Address         Data
> ----------      ----
> 0x00000000      0xaa
> 0x00000001      0x55
> 0x00000002      0x99
> 0x00000003      0x66

Michael noticed that your NVRAM signature is byteswapped in NVRAM. (!)
That also explains why the driver is trying to obtain the MAC address
through NVRAM, rather than getting it from shared memory.  The device's
bootcode is not working correctly.

> 0x00000004      0x00
> 0x00000005      0x00
> 0x00000006      0x00
> 0x00000007      0x08
> 0x00000008      0x29
> 0x00000009      0x02
> 0x0000000a      0x00
> 0x0000000b      0x00
> 0x0000000c      0x00
> 0x0000000d      0x02
> 0x0000000e      0x00
> 0x0000000f      0x00
> 0x00000010      0xc5
> 0x00000011      0x3c
> 0x00000012      0x82
> 0x00000013      0x9b
> 0x00000014      0x00
> 0x00000015      0x00
> 0x00000016      0x00
> 0x00000017      0x00
> 0x00000018      0x00
> 0x00000019      0x00
> 0x0000001a      0x00
> 0x0000001b      0x00
> 0x0000001c      0x00
> 0x0000001d      0x00
> 0x0000001e      0x00
> 0x0000001f      0x00
> 0x00000020      0x00
> 0x00000021      0x00
> 0x00000022      0x00
> 0x00000023      0x00
> 0x00000024      0x00
> 0x00000025      0x00
> 0x00000026      0x00
> 0x00000027      0x00
> 0x00000028      0x00
> 0x00000029      0x00
> 0x0000002a      0x00
> 0x0000002b      0x00
> 0x0000002c      0x00
> 0x0000002d      0x00
> 0x0000002e      0x00
> 0x0000002f      0x00
> 0x00000030      0x00
> 0x00000031      0x00
> 0x00000032      0x00
> 0x00000033      0x00
> 0x00000034      0x00
> 0x00000035      0x00
> 0x00000036      0x00
> 0x00000037      0x00
> 0x00000038      0x00
> 0x00000039      0x00
> 0x0000003a      0x00
> 0x0000003b      0x00
> 0x0000003c      0x00
> 0x0000003d      0x00
> 0x0000003e      0x00
> 0x0000003f      0x00
> 0x00000040      0x00
> 0x00000041      0x00
> 0x00000042      0x00
> 0x00000043      0x00
> 0x00000044      0x00
> 0x00000045      0x00
> 0x00000046      0x00
> 0x00000047      0x00
> 0x00000048      0x00
> 0x00000049      0x00
> 0x0000004a      0x00
> 0x0000004b      0x00
> 0x0000004c      0x00
> 0x0000004d      0x00
> 0x0000004e      0x00
> 0x0000004f      0x00
> 0x00000050      0x00
> 0x00000051      0x00
> 0x00000052      0x00
> 0x00000053      0x00
> 0x00000054      0x00
> 0x00000055      0x00
> 0x00000056      0x00
> 0x00000057      0x00
> 0x00000058      0x00
> 0x00000059      0x00
> 0x0000005a      0x00
> 0x0000005b      0x00
> 0x0000005c      0x00
> 0x0000005d      0x00
> 0x0000005e      0x00
> 0x0000005f      0x00
> 0x00000060      0x00
> 0x00000061      0x00
> 0x00000062      0x00
> 0x00000063      0x00
> 0x00000064      0x00
> 0x00000065      0x00
> 0x00000066      0x00
> 0x00000067      0x00
> 0x00000068      0x00
> 0x00000069      0x00
> 0x0000006a      0x00
> 0x0000006b      0x00
> 0x0000006c      0x00
> 0x0000006d      0x00
> 0x0000006e      0x00
> 0x0000006f      0x00
> 0x00000070      0x00
> 0x00000071      0x00
> 0x00000072      0x00
> 0x00000073      0x00
> 0x00000074      0x8c
> 0x00000075      0x00
> 0x00000076      0x00
> 0x00000077      0x43
> 0x00000078      0x10
> 0x00000079      0x61
> 0x0000007a      0x20
> 0x0000007b      0x00
> 0x0000007c      0x30
> 0x0000007d      0x00
> 0x0000007e      0x00
> 0x0000007f      0x00
> 0x00000080      0x59
> 0x00000081      0x15
> 0x00000082      0x4b
> 0x00000083      0x6e

Yes.  And your MAC address in NVRAM is 00:00:59:15:4b:6e.  And again, HP
MAC addresses start with 00:30:6e, so the data is byteswapped in NVRAM.
(00:00:59 MAC addresses belong to "hellige gmbh").

> 0x00000084      0x39
> 0x00000085      0x4d
> 0x00000086      0x43
> 0x00000087      0x42
> 0x00000088      0x30
> 0x00000089      0x30
> 0x0000008a      0x37
> 0x0000008b      0x35
> 0x0000008c      0x00
> 0x0000008d      0x00
> 0x0000008e      0x36
> 0x0000008f      0x41
> 
> James
> 
> 
> 

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From: "Matt Carlson" <mcarlson@broadcom.com>
Date: Mon, 13 Apr 2009 18:25:48 -0700

> Michael noticed that your NVRAM signature is byteswapped in NVRAM. (!)
> That also explains why the driver is trying to obtain the MAC address
> through NVRAM, rather than getting it from shared memory.  The device's
> bootcode is not working correctly.

If this problem is pervasive, which it seems it is since we
have at least two people hitting this problem, we'll need
to find a way to handle it without saying "update your
BIOS or system firmware"
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On Mon, Apr 13, 2009 at 06:40:35PM -0700, David Miller wrote:
> From: "Matt Carlson" <mcarlson@broadcom.com>
> Date: Mon, 13 Apr 2009 18:25:48 -0700
> 
> > Michael noticed that your NVRAM signature is byteswapped in NVRAM. (!)
> > That also explains why the driver is trying to obtain the MAC address
> > through NVRAM, rather than getting it from shared memory.  The device's
> > bootcode is not working correctly.
> 
> If this problem is pervasive, which it seems it is since we
> have at least two people hitting this problem, we'll need
> to find a way to handle it without saying "update your
> BIOS or system firmware"

Well, Robin's problem looks distinctly different than James'.  I believe
Robin's problem has to do with the legacy EEPROM access routines.  The
patchset may have overlooked something in that area.  I just need to
gather evidence to prove it.

I did run some tests this afternoon on a similar IA64 HP machine and
they ran fine.  Consequently, I'm optimistic that James' problem is local
to his machine.  If this turns out to be a wider problem, then I agree
we'll need to find an appropriate solution.

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On Mon, Apr 13, 2009 at 07:00:15PM -0700, Matt Carlson wrote:
> I did run some tests this afternoon on a similar IA64 HP machine and
> they ran fine.  Consequently, I'm optimistic that James' problem is local
> to his machine.  If this turns out to be a wider problem, then I agree
> we'll need to find an appropriate solution.
> 

ia64 Linux is little endian...

regards, Kyle
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From: "Matt Carlson" <mcarlson@broadcom.com>
Date: Mon, 13 Apr 2009 19:00:15 -0700

> I did run some tests this afternoon on a similar IA64 HP machine and
> they ran fine.

It can't be similar, James Bottomly is on HP PARISC (big endian) not
IA64 (which is little endian).

I'm still convinced this is a big-endian driver problem and it has
nothing to do with broken NVRAM or similar.
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On Mon, 2009-04-13 at 18:25 -0700, Matt Carlson wrote:
> On Mon, Apr 13, 2009 at 03:32:14PM -0700, James Bottomley wrote:
> > On Mon, 2009-04-13 at 15:17 -0700, Michael Chan wrote:
> > > On Mon, 2009-04-13 at 14:42 -0700, James Bottomley wrote:
> > > 
> > > > ---
> > > > On Mon, 2009-04-13 at 11:37 -0700, Matt Carlson wrote:
> > > > > But that is exactly what the code is doing.  tg3_nvram_read_be32() will
> > > > > return the data in bytestream format.  A memcpy() should be all that is
> > > > > needed to transport the data to a different memory location.
> > > > 
> > > > But not the one you've done.  cpu_to_be32 is a nop pass through on our
> > > > architecture, so tg3_nvram_read_be32 is equivalent to tg3_nvram_read on
> > > > our architecture (i.e. identical to the code that was doing the read in
> > > > 2.6.29).  However, the memcpy is the wrong way around for us.  If you
> > > > look at an example, the original code said
> > > 
> > > The old tg3_nvram_read() had a swab32() after the readl().  The new
> > > tg3_nvram_read() no longer has the swab32().  There were too many layers
> > > of swapping in the old code and that's why Matt wanted to clean it up.
> > > 
> > > James, can do dump out the nvram content on the parisc?
> > > 
> > > ethtool -e eth0 length 0x90
> > > 
> > > Thanks.
> > 
> > Sure, ion's is
> > 
> > ion:~# ethtool -e eth0 length 0x90
> > Address         Data
> > ----------      ----
> > 0x00000000      0xaa
> > 0x00000001      0x55
> > 0x00000002      0x99
> > 0x00000003      0x66
> 
> Michael noticed that your NVRAM signature is byteswapped in NVRAM. (!)
> That also explains why the driver is trying to obtain the MAC address
> through NVRAM, rather than getting it from shared memory.  The device's
> bootcode is not working correctly.

Um, well, this is a parisc:  the device's boot code won't be working at
all (parisc doesn't have open firmware boot).  The values might be laid
down by the platform IODC, but usually for add in cards, they're the
default initialise values the card comes up with.

James


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David Miller wrote:

> From: "Matt Carlson" <mcarlson@broadcom.com>
> Date: Mon, 13 Apr 2009 19:00:15 -0700
>
> > I did run some tests this afternoon on a similar IA64 HP machine and
> > they ran fine.
>
> It can't be similar, James Bottomly is on HP PARISC (big endian) not
> IA64 (which is little endian).

Matt brought up IA64 because Robin Holt reported what seemed like an
identical issue on SGI IA64 machine.

>
> I'm still convinced this is a big-endian driver problem and it has
> nothing to do with broken NVRAM or similar.
>
>

Agreed.  James' problem appears to be a big endian issue.  Everything
is endian-swapped in his NVRAM when he did the ethtool dump.

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Thread-Topic: [PATCH] tg3: fix big endian MAC address collection failure
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James Bottomley wrote:

> On Mon, 2009-04-13 at 18:25 -0700, Matt Carlson wrote:
> > On Mon, Apr 13, 2009 at 03:32:14PM -0700, James Bottomley wrote:
> > >
> > > ion:~# ethtool -e eth0 length 0x90
> > > Address         Data
> > > ----------      ----
> > > 0x00000000      0xaa
> > > 0x00000001      0x55
> > > 0x00000002      0x99
> > > 0x00000003      0x66
> >
> > Michael noticed that your NVRAM signature is byteswapped in
> NVRAM. (!)
> > That also explains why the driver is trying to obtain the
> MAC address
> > through NVRAM, rather than getting it from shared memory.
> The device's
> > bootcode is not working correctly.
>
> Um, well, this is a parisc:  the device's boot code won't be
> working at
> all (parisc doesn't have open firmware boot).  The values
> might be laid
> down by the platform IODC, but usually for add in cards, they're the
> default initialise values the card comes up with.
>

Matt was referring to MIPS code that runs inside the MIPS core inside
the TG3 chip.  The code is loaded from NVRAM and will start running
after chip reset.  But I don't agree with Matt that the swapped NVRAM
values were caused by bad MIPS code programmed in the NVRAM.

I agree with DaveM that this appears to be a driver big-endian problem
when reading the NVRAM.  Can you run the same ethtool -e on 2.6.29 to
confirm?  Thanks.

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From - Thu Nov 08 21:04:01 2018
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From: Wei Yongjun <yjwei@cn.fujitsu.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix the parameters of call to parport_pc_probe_port()
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commit 51dcdfec6a274afc1c6fce180d582add9ff512c0 (parport: Use the PCI
IRQ if offered) parport_pc_probe_port() gained an irqflags arg. This
break parisc. This patch make parisc fallback to the old behaviour,
that is using "0" for irqflags.

No test.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
---
 drivers/parisc/superio.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 4fa3bb2..f6727e2 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -434,7 +434,8 @@ static void __init superio_parport_init(void)
 			0 /*base_hi*/,
 			PAR_IRQ, 
 			PARPORT_DMA_NONE /* dma */,
-			NULL /*struct pci_dev* */) )
+			NULL /*struct pci_dev* */,
+			0))
 
 		printk(KERN_WARNING PFX "Probing parallel port failed.\n");
 #endif	/* CONFIG_PARPORT_PC */
-- 
1.5.3.8




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From - Thu Nov 08 21:04:01 2018
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Subject: Re: [PATCH] parisc: fix the parameters of call to
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On Tue, Apr 14, 2009 at 02:01:37PM +0800, Wei Yongjun wrote:
> commit 51dcdfec6a274afc1c6fce180d582add9ff512c0 (parport: Use the PCI
> IRQ if offered) parport_pc_probe_port() gained an irqflags arg. This
> break parisc. This patch make parisc fallback to the old behaviour,
> that is using "0" for irqflags.
> 
> No test.
> 

Looks good, thanks, applied.
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Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
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On Mon, 2009-04-13 at 21:11 -0700, Michael Chan wrote:
> James Bottomley wrote:
> 
> > On Mon, 2009-04-13 at 18:25 -0700, Matt Carlson wrote:
> > > On Mon, Apr 13, 2009 at 03:32:14PM -0700, James Bottomley wrote:
> > > >
> > > > ion:~# ethtool -e eth0 length 0x90
> > > > Address         Data
> > > > ----------      ----
> > > > 0x00000000      0xaa
> > > > 0x00000001      0x55
> > > > 0x00000002      0x99
> > > > 0x00000003      0x66
> > >
> > > Michael noticed that your NVRAM signature is byteswapped in
> > NVRAM. (!)
> > > That also explains why the driver is trying to obtain the
> > MAC address
> > > through NVRAM, rather than getting it from shared memory.
> > The device's
> > > bootcode is not working correctly.
> >
> > Um, well, this is a parisc:  the device's boot code won't be
> > working at
> > all (parisc doesn't have open firmware boot).  The values
> > might be laid
> > down by the platform IODC, but usually for add in cards, they're the
> > default initialise values the card comes up with.
> >
> 
> Matt was referring to MIPS code that runs inside the MIPS core inside
> the TG3 chip.  The code is loaded from NVRAM and will start running
> after chip reset.  But I don't agree with Matt that the swapped NVRAM
> values were caused by bad MIPS code programmed in the NVRAM.

Um, yes, me too ... if the boot process doesn't involve the platform,
there's no reason the values would get swapped (unless we're accessing
them wrongly).

> I agree with DaveM that this appears to be a driver big-endian problem
> when reading the NVRAM.  Can you run the same ethtool -e on 2.6.29 to
> confirm?  Thanks.

Sure (just had to rebuild a 2.6.29 kernel):

ion:~# ethtool -e eth0 length 0x90
Address         Data
----------      ----
0x00000000      0x66
0x00000001      0x99
0x00000002      0x55
0x00000003      0xaa
0x00000004      0x08
0x00000005      0x00
0x00000006      0x00
0x00000007      0x00
0x00000008      0x00
0x00000009      0x00
0x0000000a      0x02
0x0000000b      0x29
0x0000000c      0x00
0x0000000d      0x00
0x0000000e      0x02
0x0000000f      0x00
0x00000010      0x9b
0x00000011      0x82
0x00000012      0x3c
0x00000013      0xc5
0x00000014      0x00
0x00000015      0x00
0x00000016      0x00
0x00000017      0x00
0x00000018      0x00
0x00000019      0x00
0x0000001a      0x00
0x0000001b      0x00
0x0000001c      0x00
0x0000001d      0x00
0x0000001e      0x00
0x0000001f      0x00
0x00000020      0x00
0x00000021      0x00
0x00000022      0x00
0x00000023      0x00
0x00000024      0x00
0x00000025      0x00
0x00000026      0x00
0x00000027      0x00
0x00000028      0x00
0x00000029      0x00
0x0000002a      0x00
0x0000002b      0x00
0x0000002c      0x00
0x0000002d      0x00
0x0000002e      0x00
0x0000002f      0x00
0x00000030      0x00
0x00000031      0x00
0x00000032      0x00
0x00000033      0x00
0x00000034      0x00
0x00000035      0x00
0x00000036      0x00
0x00000037      0x00
0x00000038      0x00
0x00000039      0x00
0x0000003a      0x00
0x0000003b      0x00
0x0000003c      0x00
0x0000003d      0x00
0x0000003e      0x00
0x0000003f      0x00
0x00000040      0x00
0x00000041      0x00
0x00000042      0x00
0x00000043      0x00
0x00000044      0x00
0x00000045      0x00
0x00000046      0x00
0x00000047      0x00
0x00000048      0x00
0x00000049      0x00
0x0000004a      0x00
0x0000004b      0x00
0x0000004c      0x00
0x0000004d      0x00
0x0000004e      0x00
0x0000004f      0x00
0x00000050      0x00
0x00000051      0x00
0x00000052      0x00
0x00000053      0x00
0x00000054      0x00
0x00000055      0x00
0x00000056      0x00
0x00000057      0x00
0x00000058      0x00
0x00000059      0x00
0x0000005a      0x00
0x0000005b      0x00
0x0000005c      0x00
0x0000005d      0x00
0x0000005e      0x00
0x0000005f      0x00
0x00000060      0x00
0x00000061      0x00
0x00000062      0x00
0x00000063      0x00
0x00000064      0x00
0x00000065      0x00
0x00000066      0x00
0x00000067      0x00
0x00000068      0x00
0x00000069      0x00
0x0000006a      0x00
0x0000006b      0x00
0x0000006c      0x00
0x0000006d      0x00
0x0000006e      0x00
0x0000006f      0x00
0x00000070      0x00
0x00000071      0x00
0x00000072      0x00
0x00000073      0x00
0x00000074      0x43
0x00000075      0x00
0x00000076      0x00
0x00000077      0x8c
0x00000078      0x00
0x00000079      0x20
0x0000007a      0x61
0x0000007b      0x10
0x0000007c      0x00
0x0000007d      0x00
0x0000007e      0x00
0x0000007f      0x30
0x00000080      0x6e
0x00000081      0x4b
0x00000082      0x15
0x00000083      0x59
0x00000084      0x42
0x00000085      0x43
0x00000086      0x4d
0x00000087      0x39
0x00000088      0x35
0x00000089      0x37
0x0000008a      0x30
0x0000008b      0x30
0x0000008c      0x41
0x0000008d      0x36
0x0000008e      0x00
0x0000008f      0x00

So that's byteswapped from the 2.6.30 output ... confirming your theory,
I think.

James


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Please don't let me distract from this conversation, but here are the
ethtool dumps on ia64 for the same BCM5701 adapter for both 2.6.30-rc1
and 2.6.27.y

When I dump BCM5704 adapters, the first four bytes match.

2.6.27.19
Address   	Data
----------	----
0x00000000	0x66
0x00000001	0x99
0x00000002	0x55
0x00000003	0xaa
0x00000004	0x08
0x00000005	0x00
0x00000006	0x00
0x00000007	0x00
0x00000008	0x00
0x00000009	0x00
0x0000000a	0x02
0x0000000b	0xa5
0x0000000c	0x00
0x0000000d	0x00
0x0000000e	0x02
0x0000000f	0x00
0x00000010	0x08
0x00000011	0xdf
0x00000012	0x2a
0x00000013	0xb1
0x00000014	0x00
0x00000015	0x01
0x00000016	0x00
0x00000017	0x00
0x00000018	0x00
0x00000019	0x00
0x0000001a	0x3c
0x0000001b	0x00
0x0000001c	0x00
0x0000001d	0x00
0x0000001e	0x10
0x0000001f	0x00
0x00000020	0x00
0x00000021	0x00
0x00000022	0x00
0x00000023	0x00
0x00000024	0x00
0x00000025	0x00
0x00000026	0x00
0x00000027	0x00
0x00000028	0x00
0x00000029	0x00
0x0000002a	0x00
0x0000002b	0x00
0x0000002c	0x00
0x0000002d	0x00
0x0000002e	0x00
0x0000002f	0x00
0x00000030	0x00
0x00000031	0x00
0x00000032	0x00
0x00000033	0x00
0x00000034	0x00
0x00000035	0x00
0x00000036	0x00
0x00000037	0x00
0x00000038	0x00
0x00000039	0x00
0x0000003a	0x00
0x0000003b	0x00
0x0000003c	0x00
0x0000003d	0x00
0x0000003e	0x00
0x0000003f	0x00
0x00000040	0x00
0x00000041	0x00
0x00000042	0x00
0x00000043	0x00
0x00000044	0x00
0x00000045	0x00
0x00000046	0x00
0x00000047	0x00
0x00000048	0x00
0x00000049	0x00
0x0000004a	0x00
0x0000004b	0x00
0x0000004c	0x00
0x0000004d	0x00
0x0000004e	0x00
0x0000004f	0x00
0x00000050	0x00
0x00000051	0x00
0x00000052	0x00
0x00000053	0x00
0x00000054	0x00
0x00000055	0x00
0x00000056	0x00
0x00000057	0x00
0x00000058	0x00
0x00000059	0x00
0x0000005a	0x00
0x0000005b	0x00
0x0000005c	0x00
0x0000005d	0x00
0x0000005e	0x00
0x0000005f	0x00
0x00000060	0x00
0x00000061	0x00
0x00000062	0x00
0x00000063	0x00
0x00000064	0x00
0x00000065	0x00
0x00000066	0x00
0x00000067	0x00
0x00000068	0x00
0x00000069	0x00
0x0000006a	0x00
0x0000006b	0x00
0x0000006c	0x00
0x0000006d	0x00
0x0000006e	0x00
0x0000006f	0x00
0x00000070	0x00
0x00000071	0x00
0x00000072	0x00
0x00000073	0x00
0x00000074	0x43
0x00000075	0x00
0x00000076	0x00
0x00000077	0x8c
0x00000078	0x00
0x00000079	0x00
0x0000007a	0x00
0x0000007b	0x01
0x0000007c	0x00
0x0000007d	0x00
0x0000007e	0x08
0x0000007f	0x00
0x00000080	0x69
0x00000081	0x13
0x00000082	0xe6
0x00000083	0x3c
0x00000084	0x33
0x00000085	0x43
0x00000086	0x39
0x00000087	0x39
0x00000088	0x36
0x00000089	0x42
0x0000008a	0x2d
0x0000008b	0x54
0x0000008c	0x00
0x0000008d	0x00
0x0000008e	0x00
0x0000008f	0x00


2.6.30-rc1
Address   	Data
----------	----
0x00000000	0xaa
0x00000001	0x55
0x00000002	0x99
0x00000003	0x66
0x00000004	0x00
0x00000005	0x00
0x00000006	0x00
0x00000007	0x08
0x00000008	0xa5
0x00000009	0x02
0x0000000a	0x00
0x0000000b	0x00
0x0000000c	0x00
0x0000000d	0x02
0x0000000e	0x00
0x0000000f	0x00
0x00000010	0xb1
0x00000011	0x2a
0x00000012	0xdf
0x00000013	0x08
0x00000014	0x00
0x00000015	0x00
0x00000016	0x01
0x00000017	0x00
0x00000018	0x00
0x00000019	0x3c
0x0000001a	0x00
0x0000001b	0x00
0x0000001c	0x00
0x0000001d	0x10
0x0000001e	0x00
0x0000001f	0x00
0x00000020	0x00
0x00000021	0x00
0x00000022	0x00
0x00000023	0x00
0x00000024	0x00
0x00000025	0x00
0x00000026	0x00
0x00000027	0x00
0x00000028	0x00
0x00000029	0x00
0x0000002a	0x00
0x0000002b	0x00
0x0000002c	0x00
0x0000002d	0x00
0x0000002e	0x00
0x0000002f	0x00
0x00000030	0x00
0x00000031	0x00
0x00000032	0x00
0x00000033	0x00
0x00000034	0x00
0x00000035	0x00
0x00000036	0x00
0x00000037	0x00
0x00000038	0x00
0x00000039	0x00
0x0000003a	0x00
0x0000003b	0x00
0x0000003c	0x00
0x0000003d	0x00
0x0000003e	0x00
0x0000003f	0x00
0x00000040	0x00
0x00000041	0x00
0x00000042	0x00
0x00000043	0x00
0x00000044	0x00
0x00000045	0x00
0x00000046	0x00
0x00000047	0x00
0x00000048	0x00
0x00000049	0x00
0x0000004a	0x00
0x0000004b	0x00
0x0000004c	0x00
0x0000004d	0x00
0x0000004e	0x00
0x0000004f	0x00
0x00000050	0x00
0x00000051	0x00
0x00000052	0x00
0x00000053	0x00
0x00000054	0x00
0x00000055	0x00
0x00000056	0x00
0x00000057	0x00
0x00000058	0x00
0x00000059	0x00
0x0000005a	0x00
0x0000005b	0x00
0x0000005c	0x00
0x0000005d	0x00
0x0000005e	0x00
0x0000005f	0x00
0x00000060	0x00
0x00000061	0x00
0x00000062	0x00
0x00000063	0x00
0x00000064	0x00
0x00000065	0x00
0x00000066	0x00
0x00000067	0x00
0x00000068	0x00
0x00000069	0x00
0x0000006a	0x00
0x0000006b	0x00
0x0000006c	0x00
0x0000006d	0x00
0x0000006e	0x00
0x0000006f	0x00
0x00000070	0x00
0x00000071	0x00
0x00000072	0x00
0x00000073	0x00
0x00000074	0x8c
0x00000075	0x00
0x00000076	0x00
0x00000077	0x43
0x00000078	0x01
0x00000079	0x00
0x0000007a	0x00
0x0000007b	0x00
0x0000007c	0x00
0x0000007d	0x08
0x0000007e	0x00
0x0000007f	0x00
0x00000080	0x3c
0x00000081	0xe6
0x00000082	0x13
0x00000083	0x69
0x00000084	0x39
0x00000085	0x39
0x00000086	0x43
0x00000087	0x33
0x00000088	0x54
0x00000089	0x2d
0x0000008a	0x42
0x0000008b	0x36
0x0000008c	0x00
0x0000008d	0x00
0x0000008e	0x00
0x0000008f	0x00

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From - Thu Nov 08 21:04:01 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
Date: Tue, 14 Apr 2009 09:39:11 -0600
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References: <1239636110.3278.29.camel@mulgrave.int.hansenpartnership.com> <20090413180052.GB11076@xw6200.broadcom.net> <1239646516.3278.57.camel@mulgrave.int.hansenpartnership.com> <20090413183725.GC11109@xw6200.broadcom.net> <1239655698.3278.83.camel@mulgrave.int.hansenpartnership.com> <20090414011710.GA11615@xw6200.broadcom.net>
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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	Parisc List <linux-parisc@vger.kernel.org>,
	Michael Chan <mchan@broadcom.com>
To: Matt Carlson <mcarlson@broadcom.com>
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On Mon, Apr 13, 2009 at 06:17:10PM -0700, Matt Carlson wrote:
> Sorry for the delay.  I just ran the same experiment on an ia64 we have
> in-house.  The results were the same.  The machine was a HP integrity
> BL870C pre-production blade with dual 5704S LOMs.  More responses
> inline.

Matt,
sorry - why test this on ia64?
ia64 is also little endian.
parisc is big endian.

> On Mon, Apr 13, 2009 at 01:48:18PM -0700, James Bottomley wrote:
> > On Mon, 2009-04-13 at 11:37 -0700, Matt Carlson wrote:
> > > But that is exactly what the code is doing.  tg3_nvram_read_be32() will
> > > return the data in bytestream format.  A memcpy() should be all that is
> > > needed to transport the data to a different memory location.
> > 
> > But not the one you've done.  cpu_to_be32 is a nop pass through on our
> > architecture, so tg3_nvram_read_be32 is equivalent to tg3_nvram_read on
> > our architecture (i.e. identical to the code that was doing the read in
> > 2.6.29).
> 
> tg3_nvram_read() returns a 32-bit word of NVRAM data, swapped according to
> the byteswapping rules for all register accesses.

Lets review that calling order I found in 2.6.29-rc8:
	tg3_nvram_read -> tr32 -> tg3_read32 -> readl -> swab

o The swab is actually in tg3_nvram_read.
o one should be able to get rid of indirect function call in tr32.

>  On big endian machines,
> the data returned will be exactly as it would have been in NVRAM.  On
> little endian machines, the data will be swapped when compared to a raw
> read of the NVRAM.

Is this referring to the returned value from readl() or from tg3_nvram_read()?
The readl() return value will be the same in both LE and BE architectures.
readl() adjusts for endianess.
__raw_readl() does not.

> To bring the data back to a bytestream format on LE
> systems, a swap is needed. 

For the above code path, if swap is needed on LE, it's also needed on BE.

> After that, a memcpy should be all that is
> required to extract the MAC address.
> 
> Code that operates on data in a bytestream format will necessarily look
> different than code that operates on data as a 32-bit native endian
> quantity.  The code changes can look a bit drastic and are easily
> culpable at first glance.

This is true for code paths that deal with DMA data. It's not true
for readl() or writel() since those are already taking care of
the endianess.

> > However, the memcpy is the wrong way around for us.
> 
> It shouldn't be, and that is the problem.  We are trying to determine
> why the data isn't in the form we think it should be in.  The most
> difficult part of this discussion is convincing ourselves that the end
> result is the same, even though the path to get there changes in
> significant ways.

It's not that hard. readl() is already compensating for endianess.

> The old code read the data from NVRAM, did a blind swap of the data and
> then operated on that data as a 32-bit quantity.  The blind swap was
> completely superfluous and only changed which byte the driver attempted
> to get its data.

The swap is not superfluous if one is using memcpy.

>  An important property of this version is that the
> same code when working with machines of either endianness.
> 
> If you are with me this far, then hopefully you can see that, while the
> two versions of the code appear different, they wind up with the same
> result.  The change was made because the code became much more readable
> when we describe the operations as a bytestream.

I think james already demonstrated that the result is not the same.

I'll stop here since most of the discussion is based on not knowing
that readl() takes care of endianess.

hth,
grant

> > If you look at an example, the original code said
> > 
> > dev_addr[0] = hi >> 16;
> > dev_addr[1] = hi >> 24
> > 
> > So MSB-1 and MSB.  However, on a BE machine these are at offset one and
> > zero from the start of the word.  The replacement memcopy is:
> > 
> > memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2)
> > 
> > i.e. offset 3 and 4, which actually copies LSB-1 and LSB into there.
> > You can follow similar logic to show that the lo copy is wrong too.
> 
> Yes.  The code will be different depending on whether you treat the data
> as a native endian 32-bit word or as a 4 byte segment of a bytestream.
> 
> > Perhaps the fix is just to put the tg3_nvram_read() back as well as the
> > original by loads?
> 
> The code is much more readable with the changes in place.  I'd rather
> not back them out.  I'd like to find out why you are getting different
> results than I am with my tests.
> 
> I just saw your NVRAM dump post.  Perhaps that'll shed some light on the
> matter.
> 
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From - Thu Nov 08 21:04:01 2018
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Subject: SEEPROM test patch
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James, Robin.  I looked through the patches again and found that the
SEEPROM routines were not being adjusted correctly along with the flash
NVRAM access routines.  The patch below should shore up the difference.
The patch works on both BE and LE systems.

Can you apply the patch below and see if it fixes your problem?  (You
may have to back out David's changes for the mac addresses to be
restored, but 'eeprom -e' dumps should be fixed.)  If it does, I'll
post a replacement patch that documents why the code is doing what it's
doing.


diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 6a736dd..3ef43c2 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -2190,7 +2190,10 @@ static int tg3_nvram_read_using_eeprom(struct tg3 *tp,
 	if (!(tmp & EEPROM_ADDR_COMPLETE))
 		return -EBUSY;
 
-	*val = tr32(GRC_EEPROM_DATA);
+	tmp = tr32(GRC_EEPROM_DATA);
+
+	*val = swab32(tmp);
+
 	return 0;
 }
 
@@ -10657,13 +10660,13 @@ static int tg3_nvram_write_block_using_eeprom(struct tg3 *tp,
 
 	for (i = 0; i < len; i += 4) {
 		u32 addr;
-		__be32 data;
+		__le32 data;
 
 		addr = offset + i;
 
 		memcpy(&data, buf + i, 4);
 
-		tw32(GRC_EEPROM_DATA, be32_to_cpu(data));
+		tw32(GRC_EEPROM_DATA, le32_to_cpu(data));
 
 		val = tr32(GRC_EEPROM_ADDR);
 		tw32(GRC_EEPROM_ADDR, val | EEPROM_ADDR_COMPLETE);

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On Tue, 2009-04-14 at 10:21 -0700, Matt Carlson wrote:
> James, Robin.  I looked through the patches again and found that the
> SEEPROM routines were not being adjusted correctly along with the flash
> NVRAM access routines.  The patch below should shore up the difference.
> The patch works on both BE and LE systems.
> 
> Can you apply the patch below and see if it fixes your problem?  (You
> may have to back out David's changes for the mac addresses to be
> restored, but 'eeprom -e' dumps should be fixed.)  If it does, I'll
> post a replacement patch that documents why the code is doing what it's
> doing.

Yes, that seems to work better:  both the mac address and ethtool -e
output are back to what 2.6.29 reports.

James


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From: Robin Holt <holt@sgi.com>
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On Tue, Apr 14, 2009 at 05:44:17PM +0000, James Bottomley wrote:
> On Tue, 2009-04-14 at 10:21 -0700, Matt Carlson wrote:
> > James, Robin.  I looked through the patches again and found that the
> > SEEPROM routines were not being adjusted correctly along with the flash
> > NVRAM access routines.  The patch below should shore up the difference.
> > The patch works on both BE and LE systems.
> > 
> > Can you apply the patch below and see if it fixes your problem?  (You
> > may have to back out David's changes for the mac addresses to be
> > restored, but 'eeprom -e' dumps should be fixed.)  If it does, I'll
> > post a replacement patch that documents why the code is doing what it's
> > doing.
> 
> Yes, that seems to work better:  both the mac address and ethtool -e
> output are back to what 2.6.29 reports.

Works for me as well.

Thanks,
Robin
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On Tue, Apr 14, 2009 at 08:39:11AM -0700, Grant Grundler wrote:
> On Mon, Apr 13, 2009 at 06:17:10PM -0700, Matt Carlson wrote:
> > Sorry for the delay.  I just ran the same experiment on an ia64 we have
> > in-house.  The results were the same.  The machine was a HP integrity
> > BL870C pre-production blade with dual 5704S LOMs.  More responses
> > inline.
> 
> Matt,
> sorry - why test this on ia64?
> ia64 is also little endian.
> parisc is big endian.

Like Michael said in another post, Robin Holt experienced a similar (the
same?) problem on an IA64.  We were thinking that a problem reproduction
on one machine might imply the same problem on the other.

> > On Mon, Apr 13, 2009 at 01:48:18PM -0700, James Bottomley wrote:
> > > On Mon, 2009-04-13 at 11:37 -0700, Matt Carlson wrote:
> > > > But that is exactly what the code is doing.  tg3_nvram_read_be32() will
> > > > return the data in bytestream format.  A memcpy() should be all that is
> > > > needed to transport the data to a different memory location.
> > > 
> > > But not the one you've done.  cpu_to_be32 is a nop pass through on our
> > > architecture, so tg3_nvram_read_be32 is equivalent to tg3_nvram_read on
> > > our architecture (i.e. identical to the code that was doing the read in
> > > 2.6.29).
> > 
> > tg3_nvram_read() returns a 32-bit word of NVRAM data, swapped according to
> > the byteswapping rules for all register accesses.
> 
> Lets review that calling order I found in 2.6.29-rc8:
> 	tg3_nvram_read -> tr32 -> tg3_read32 -> readl -> swab
> 
> o The swab is actually in tg3_nvram_read.

Right.

> o one should be able to get rid of indirect function call in tr32.

Well, there are situations where the read operation needs to be done
using a different method.  So that the reader could concentrate on the
higher-level algorthm, we hide the implementation details of the read
through a function pointer.

> >  On big endian machines,
> > the data returned will be exactly as it would have been in NVRAM.  On
> > little endian machines, the data will be swapped when compared to a raw
> > read of the NVRAM.
> 
> Is this referring to the returned value from readl() or from tg3_nvram_read()?

It is referring to the value from readl().

> The readl() return value will be the same in both LE and BE architectures.
> readl() adjusts for endianess.
> __raw_readl() does not.
>
> > To bring the data back to a bytestream format on LE
> > systems, a swap is needed. 
> 
> For the above code path, if swap is needed on LE, it's also needed on BE.

Well, the 32-bit _value_ will be the same on architectures of either endianness.
But our goal is to deal with the data as a bytestream.  Consequently a
swap is needed.

For example, reading offset 0x0 of NVRAM (for legacy NVRAM formats)
readl will always produce a value of 0x669955aa.  On LE machines, this 32-bit
value will be laid out as :

  i             i + 3
  |               |
  V               V
---------------------
| aa | 55 | 99 | 66 |
---------------------

On BE machines, the byte ordering is obviously reversed.  To do a
memcpy, the bytes must be in the BE format.

> > After that, a memcpy should be all that is
> > required to extract the MAC address.
> > 
> > Code that operates on data in a bytestream format will necessarily look
> > different than code that operates on data as a 32-bit native endian
> > quantity.  The code changes can look a bit drastic and are easily
> > culpable at first glance.
> 
> This is true for code paths that deal with DMA data. It's not true
> for readl() or writel() since those are already taking care of
> the endianess.

Again, think bytestream.

> > > However, the memcpy is the wrong way around for us.
> > 
> > It shouldn't be, and that is the problem.  We are trying to determine
> > why the data isn't in the form we think it should be in.  The most
> > difficult part of this discussion is convincing ourselves that the end
> > result is the same, even though the path to get there changes in
> > significant ways.
> 
> It's not that hard. readl() is already compensating for endianess.
> 
> > The old code read the data from NVRAM, did a blind swap of the data and
> > then operated on that data as a 32-bit quantity.  The blind swap was
> > completely superfluous and only changed which byte the driver attempted
> > to get its data.
> 
> The swap is not superfluous if one is using memcpy.
>
> >  An important property of this version is that the
> > same code when working with machines of either endianness.
> > 
> > If you are with me this far, then hopefully you can see that, while the
> > two versions of the code appear different, they wind up with the same
> > result.  The change was made because the code became much more readable
> > when we describe the operations as a bytestream.
> 
> I think james already demonstrated that the result is not the same.
> 
> I'll stop here since most of the discussion is based on not knowing
> that readl() takes care of endianess.

Yes.  I think the discussion will be resolved once we distinguish
between operating on the data as a value and operating on the data as a
bytestream.

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Subject: Re: 2.6.30-rc1: parisc: system hangs on boot at __schedule()
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2009/4/9 Kyle McMartin <kyle@mcmartin.ca>:
> On Thu, Apr 09, 2009 at 12:46:15PM +0400, Alexander Beregalov wrote:
>> 2009/4/9 Kyle McMartin <kyle@mcmartin.ca>:
>> > On Wed, Apr 08, 2009 at 05:03:04PM +0400, Alexander Beregalov wrote:
>> >> Hi
>> >>
>> >> Machine is HP j6000.
>> >> CPU(s): 2 x PA8700 (PCX-W2) at 750.000000 MHz
>> >>
>> >> gcc version 4.3.3 (Gentoo 4.3.3-r2 p1.1, pie-10.1.5)
>> >>
>> >>
>> >> Machine hangs before starting rc scripts, but SysRq and C-A-Del work.
>> >>
>> >> All tasks are at __schedule+0x268/0x7bc:
>> >>
>> >
>> > .config?
>>
>> Sorry, attached.
>
> Thanks, I swapped disks into my j6700 and will try to reproduce.

It seems the problem is the same as mentioned here:
http://marc.info/?l=linux-kernel&m=123920746830420&w=2

The patch  fixes the issue.

James?
The same problem on two of my hosts: x86_64 with LSI SAS MegaRAID
and parisc with SYM53C8XX_2
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.kernel-testers,gmane.linux.scsi
Subject: Re: 2.6.30-rc1: parisc: system hangs on boot at __schedule()
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On Wed, 2009-04-15 at 16:49 +0400, Alexander Beregalov wrote:
> 2009/4/9 Kyle McMartin <kyle@mcmartin.ca>:
> > On Thu, Apr 09, 2009 at 12:46:15PM +0400, Alexander Beregalov wrote:
> >> 2009/4/9 Kyle McMartin <kyle@mcmartin.ca>:
> >> > On Wed, Apr 08, 2009 at 05:03:04PM +0400, Alexander Beregalov wrote:
> >> >> Hi
> >> >>
> >> >> Machine is HP j6000.
> >> >> CPU(s): 2 x PA8700 (PCX-W2) at 750.000000 MHz
> >> >>
> >> >> gcc version 4.3.3 (Gentoo 4.3.3-r2 p1.1, pie-10.1.5)
> >> >>
> >> >>
> >> >> Machine hangs before starting rc scripts, but SysRq and C-A-Del work.
> >> >>
> >> >> All tasks are at __schedule+0x268/0x7bc:
> >> >>
> >> >
> >> > .config?
> >>
> >> Sorry, attached.
> >
> > Thanks, I swapped disks into my j6700 and will try to reproduce.
> 
> It seems the problem is the same as mentioned here:
> http://marc.info/?l=linux-kernel&m=123920746830420&w=2
> 
> The patch  fixes the issue.
> 
> James?
> The same problem on two of my hosts: x86_64 with LSI SAS MegaRAID
> and parisc with SYM53C8XX_2

Well, I can tell you why I don't see the problem:  My parisc system has
modular SCSI, so it doesn't really test out the async system that well
(it was designed more for monolithic kernels).

On the specific patch in the email, it seems reasonable, but I think it
might interfere with the sd probe async calls, so what you might end up
losing a rache where the host fully scanned, but the sd driver not
attached.

The root cause of the problem is that we now have two different async
mechanisms in SCSI: our original one for host scanning and the new one
for sd attachment.

James



From - Thu Nov 08 21:04:03 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] ide-cd: fix kernel crash on hppa regression
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To: Linus <torvalds@linux-foundation.org>,
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With 2.6.30-rc2 I face a kernel crash on the 32bit hppa architecture 
due to ide-cd when udev creates the device nodes at startup:

Kernel Fault: Code=26 regs=8ed34c40 (Addr=00000024)
IASQ: 00000000 00000000 IAOQ: 1034b5ac 1034b5b0
 IIR: 4ab30048    ISR: 00000000  IOR: 00000024
 CPU:        0   CR30: 8ed34000 CR31: ffff55ff
 ORIG_R28: 00000000
 IAOQ[0]: ide_complete_rq+0x2c/0x70
 IAOQ[1]: ide_complete_rq+0x30/0x70
 RP(r2): cdrom_newpc_intr+0x178/0x46c
Backtrace:
 [<1035c608>] cdrom_newpc_intr+0x178/0x46c
 [<1034c494>] ide_intr+0x1b0/0x214
 [<1016d284>] handle_IRQ_event+0x70/0x150
 [<1016d4b0>] __do_IRQ+0x14c/0x1cc
 [<102f7864>] superio_interrupt+0x88/0xbc
 [<1016d284>] handle_IRQ_event+0x70/0x150
 [<1016d4b0>] __do_IRQ+0x14c/0x1cc
 [<10112efc>] do_cpu_irq_mask+0x9c/0xd0
 [<10116068>] intr_return+0x0/0x4

This crash seems to happen due to an uninitialized variable "rc".
The compiler even warns about that:
  CC      drivers/ide/ide-cd.o                                                         
/mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/ide/ide-cd.c: In function `cdrom_newpc_intr':
/mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/ide/ide-cd.c:612: warning: `rc' might be used uninitialized in this function

After applying the trivial patch below, which just initializes 
the variable to zero, the kernel doesn't crash any longer:

Starting the hotplug events dispatcher: udevd.
Synthesizing the initial hotplug events...
hda: command error: status=0x51 { DriveReady SeekComplete Error }
hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
ide: failed opcode was: unknown
done.

Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 3aec19d..3d4e099 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -609,7 +609,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
 	struct request *rq = hwif->rq;
 	ide_expiry_t *expiry = NULL;
 	int dma_error = 0, dma, thislen, uptodate = 0;
-	int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc, nsectors;
+	int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc = 0, nsectors;
 	int sense = blk_sense_request(rq);
 	unsigned int timeout;
 	u16 len;
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From: Borislav Petkov <petkovbb@googlemail.com>
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Subject: Re: [PATCH] ide-cd: fix kernel crash on hppa regression
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Cc: Linus <torvalds@linux-foundation.org>,
	Borislav Petkov <petkovbb@googlemail.com>,
	Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
	linux-parisc <linux-parisc@vger.kernel.org>,
	"Rafael J. Wysocki" <rjw@sisk.pl>
To: Helge Deller <deller@gmx.de>
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Hi,

On Thu, Apr 16, 2009 at 12:45:31AM +0200, Helge Deller wrote:
> With 2.6.30-rc2 I face a kernel crash on the 32bit hppa architecture 
> due to ide-cd when udev creates the device nodes at startup:
> 
> Kernel Fault: Code=26 regs=8ed34c40 (Addr=00000024)
> IASQ: 00000000 00000000 IAOQ: 1034b5ac 1034b5b0
>  IIR: 4ab30048    ISR: 00000000  IOR: 00000024
>  CPU:        0   CR30: 8ed34000 CR31: ffff55ff
>  ORIG_R28: 00000000
>  IAOQ[0]: ide_complete_rq+0x2c/0x70
>  IAOQ[1]: ide_complete_rq+0x30/0x70
>  RP(r2): cdrom_newpc_intr+0x178/0x46c
> Backtrace:
>  [<1035c608>] cdrom_newpc_intr+0x178/0x46c
>  [<1034c494>] ide_intr+0x1b0/0x214
>  [<1016d284>] handle_IRQ_event+0x70/0x150
>  [<1016d4b0>] __do_IRQ+0x14c/0x1cc
>  [<102f7864>] superio_interrupt+0x88/0xbc
>  [<1016d284>] handle_IRQ_event+0x70/0x150
>  [<1016d4b0>] __do_IRQ+0x14c/0x1cc
>  [<10112efc>] do_cpu_irq_mask+0x9c/0xd0
>  [<10116068>] intr_return+0x0/0x4
> 
> This crash seems to happen due to an uninitialized variable "rc".
> The compiler even warns about that:
>   CC      drivers/ide/ide-cd.o                                                         
> /mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/ide/ide-cd.c: In function `cdrom_newpc_intr':
> /mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/ide/ide-cd.c:612: warning: `rc' might be used uninitialized in this function

can you do

gdb ./vmlinux

and then

(gdb) l *(cdrom_newpc_intr+0x178)

I think I have a suspect but I want to be sure. In order to do that
you'll need a debug kernel (set CONFIG_DEBUG_INFO to 'y' in your
.config). In case the oops above is not from a debug kernel, can you
catch it again and _then_ do the gdb thing since the offset of 0x178 is
most probably going to change. In that case, you have to do

(gdb) l *(cdrom_newpc_intr+NEW_OFFSET_FROM_THE_OOPS)

Thanks.

-- 
Regards/Gruss,
    Boris.
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From: Alexander Beregalov <a.beregalov@gmail.com>
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Subject: [PATCH] parisc/superio: fix build breakage
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Usage of parport_pc_probe_port was changed in 28783eb52
(parport: Fix various uses of parport_pc).

It introduced this build error:
drivers/parisc/superio.c: In function 'superio_parport_init':
drivers/parisc/superio.c:437: error: too few arguments to function
				'parport_pc_probe_port'

Fix it.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---
 drivers/parisc/superio.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 33e5ade..9ab9796 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -434,8 +434,8 @@ static void __init superio_parport_init(void)
 			0 /*base_hi*/,
 			PAR_IRQ, 
 			PARPORT_DMA_NONE /* dma */,
-			NULL /*struct pci_dev* */),
-			0 /* shared irq flags */ )
+			NULL /*struct pci_dev* */,
+			0 /* shared irq flags */))
 
 		printk(KERN_WARNING PFX "Probing parallel port failed.\n");
 #endif	/* CONFIG_PARPORT_PC */
-- 
1.6.2.3

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From - Thu Nov 08 21:04:03 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH] parisc/superio: fix build breakage
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To: Alexander Beregalov <a.beregalov@gmail.com>
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On Thu, Apr 16, 2009 at 06:45:59PM +0400, Alexander Beregalov wrote:
> Usage of parport_pc_probe_port was changed in 28783eb52
> (parport: Fix various uses of parport_pc).
> 
> It introduced this build error:
> drivers/parisc/superio.c: In function 'superio_parport_init':
> drivers/parisc/superio.c:437: error: too few arguments to function
> 				'parport_pc_probe_port'
> 
> Fix it.
> 
> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>

Hi Alexander,

Wei Yongjun sent this patch in a few days ago, and I've applied it, but
it appears I forgot to update patchwork or push out the fixes branch.

Cheers, Kyle
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From - Thu Nov 08 21:04:03 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] ide-cd: fix kernel crash on hppa regression
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Cc: Linus <torvalds@linux-foundation.org>,
	Borislav Petkov <petkovbb@googlemail.com>,
	Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
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	"Rafael J. Wysocki" <rjw@sisk.pl>
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Hi Borislav,

Borislav Petkov wrote:
> Hi,
> 
> On Thu, Apr 16, 2009 at 12:45:31AM +0200, Helge Deller wrote:
>> With 2.6.30-rc2 I face a kernel crash on the 32bit hppa architecture 
>> due to ide-cd when udev creates the device nodes at startup:
>>
>> Kernel Fault: Code=26 regs=8ed34c40 (Addr=00000024)
>> IASQ: 00000000 00000000 IAOQ: 1034b5ac 1034b5b0
>>  IIR: 4ab30048    ISR: 00000000  IOR: 00000024
>>  CPU:        0   CR30: 8ed34000 CR31: ffff55ff
>>  ORIG_R28: 00000000
>>  IAOQ[0]: ide_complete_rq+0x2c/0x70
>>  IAOQ[1]: ide_complete_rq+0x30/0x70
>>  RP(r2): cdrom_newpc_intr+0x178/0x46c
>> Backtrace:
>>  [<1035c608>] cdrom_newpc_intr+0x178/0x46c
>>  [<1034c494>] ide_intr+0x1b0/0x214
>>  [<1016d284>] handle_IRQ_event+0x70/0x150
>>  [<1016d4b0>] __do_IRQ+0x14c/0x1cc
>>  [<102f7864>] superio_interrupt+0x88/0xbc
>>  [<1016d284>] handle_IRQ_event+0x70/0x150
>>  [<1016d4b0>] __do_IRQ+0x14c/0x1cc
>>  [<10112efc>] do_cpu_irq_mask+0x9c/0xd0
>>  [<10116068>] intr_return+0x0/0x4
>>
>> This crash seems to happen due to an uninitialized variable "rc".
>> The compiler even warns about that:
>>   CC      drivers/ide/ide-cd.o                                                         
>> /mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/ide/ide-cd.c: In function `cdrom_newpc_intr':
>> /mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/ide/ide-cd.c:612: warning: `rc' might be used uninitialized in this function
> 
> can you do
> 
> gdb ./vmlinux
> 
> and then
> 
> (gdb) l *(cdrom_newpc_intr+0x178)
> 
> I think I have a suspect but I want to be sure. In order to do that
> you'll need a debug kernel (set CONFIG_DEBUG_INFO to 'y' in your
> .config). In case the oops above is not from a debug kernel, can you
> catch it again and _then_ do the gdb thing since the offset of 0x178 is
> most probably going to change. In that case, you have to do
> 
> (gdb) l *(cdrom_newpc_intr+NEW_OFFSET_FROM_THE_OOPS)

I tried to build a kernel with CONFIG_DEBUG_INFO.
There are two problem with that, because I'm cross-compiling:
a) I don't have a cross-gdb (but I could use addr2line instead though)
b) the resulting kernel is becoming too big and won't link/boot:
...
  SYSMAP  System.map
  SYSMAP  .tmp_System.map
/sbin/palo -f /mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6-32bit/palo.conf
palo version 1.14 deller@p100 Fri Jul 28 22:55:11 CEST 2006
ELF32 executable
ipl: addr 2048 size 36864 entry 0x0
 ko 0x0 ksz 0 k64o 0x0 k64sz 0 rdo 0 rdsz 0
<>
Your 32-bit-kernel is too big for your F0 partition
make[3]: *** [palo] Error 2

I could now just try to look into the assembly by hand and try
to find which line produces the problem. But reading hppa assembly code
for such a big function is not very easy though.

So, my question would be:
If you have an idea where the problem is, maybe you have a patch for me to try?
That would simplify the whole thing for me a lot, as just compiling/run-testing is much easier for me.

Best regards,
Helge

BTW, even with my patch ATAPI CDROM accesses don't work with the current kernel...
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From - Thu Nov 08 21:04:03 2018
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From: Borislav Petkov <petkovbb@googlemail.com>
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Subject: Re: [PATCH] ide-cd: fix kernel crash on hppa regression
Date: Fri, 17 Apr 2009 08:53:44 +0200
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Cc: Linus <torvalds@linux-foundation.org>,
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	Kyle McMartin <kyle@mcmartin.ca>,
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To: Helge Deller <deller@gmx.de>
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Hi,

On Thu, Apr 16, 2009 at 10:26:06PM +0200, Helge Deller wrote:

[..]

> I tried to build a kernel with CONFIG_DEBUG_INFO.
> There are two problem with that, because I'm cross-compiling:
> a) I don't have a cross-gdb (but I could use addr2line instead though)
> b) the resulting kernel is becoming too big and won't link/boot:
> ...
>   SYSMAP  System.map
>   SYSMAP  .tmp_System.map
> /sbin/palo -f /mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6-32bit/palo.conf
> palo version 1.14 deller@p100 Fri Jul 28 22:55:11 CEST 2006
> ELF32 executable
> ipl: addr 2048 size 36864 entry 0x0
>  ko 0x0 ksz 0 k64o 0x0 k64sz 0 rdo 0 rdsz 0
> <>
> Your 32-bit-kernel is too big for your F0 partition
> make[3]: *** [palo] Error 2
> 
> I could now just try to look into the assembly by hand and try
> to find which line produces the problem. But reading hppa assembly code
> for such a big function is not very easy though.

Thanks a lot for trying, I appreciate it. However, I think I have an easier idea
I could try here first and maybe we won't need the hppa assembly exercise :).

> BTW, even with my patch ATAPI CDROM accesses don't work with the current kernel...

What do you mean by that, please elaborate?

-- 
Regards/Gruss,
    Boris.
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From - Thu Nov 08 21:04:03 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] ide-cd: fix kernel crash on hppa regression
Date: Fri, 17 Apr 2009 09:15:27 +0200
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Cc: Linus <torvalds@linux-foundation.org>,
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	Kyle McMartin <kyle@mcmartin.ca>,
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Borislav Petkov wrote:
> Hi,
> 
> On Thu, Apr 16, 2009 at 10:26:06PM +0200, Helge Deller wrote:
> 
> [..]
> 
>> I tried to build a kernel with CONFIG_DEBUG_INFO.
>> There are two problem with that, because I'm cross-compiling:
>> a) I don't have a cross-gdb (but I could use addr2line instead though)
>> b) the resulting kernel is becoming too big and won't link/boot:ina
>> ...
>>   SYSMAP  System.map
>>   SYSMAP  .tmp_System.map
>> /sbin/palo -f /mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6-32bit/palo.conf
>> palo version 1.14 deller@p100 Fri Jul 28 22:55:11 CEST 2006
>> ELF32 executable
>> ipl: addr 2048 size 36864 entry 0x0
>>  ko 0x0 ksz 0 k64o 0x0 k64sz 0 rdo 0 rdsz 0
>> <>
>> Your 32-bit-kernel is too big for your F0 partition
>> make[3]: *** [palo] Error 2
>>
>> I could now just try to look into the assembly by hand and try
>> to find which line produces the problem. But reading hppa assembly code
>> for such a big function is not very easy though.
> 
> Thanks a lot for trying, I appreciate it. However, I think I have an easier idea
> I could try here first and maybe we won't need the hppa assembly exercise :).

Great, thanks!
If you want me to test something, just let me know.

>> BTW, even with my patch ATAPI CDROM accesses don't work with the current kernel...
> 
> What do you mean by that, please elaborate?

I meant:
a) Without my patch the kernel did crash (see backtrace in original mail)
b) with my patch the kernel booted to login prompt, but I got those messages on the console:
 hda: command error: status=0x51 { DriveReady SeekComplete Error }
 hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
 ide: failed opcode was: unknown
Nevertheless, mounting a cdrom in the drive didn't suceeded with same/similiar messages, but
this could even be because of the parisc superio driver...

Helge
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
Date: Sat, 18 Apr 2009 17:00:16 -0600
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References: <1239636110.3278.29.camel@mulgrave.int.hansenpartnership.com> <20090413180052.GB11076@xw6200.broadcom.net> <1239646516.3278.57.camel@mulgrave.int.hansenpartnership.com> <20090413183725.GC11109@xw6200.broadcom.net> <1239655698.3278.83.camel@mulgrave.int.hansenpartnership.com> <20090414011710.GA11615@xw6200.broadcom.net> <20090414153911.GA22011@lackof.org> <20090414190232.GA12600@xw6200.broadcom.net>
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Cc: Grant Grundler <grundler@parisc-linux.org>,
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To: Matt Carlson <mcarlson@broadcom.com>
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This is settled already I think...just following up to complete
the conversation. Was "Out of Office" this past week.

On Tue, Apr 14, 2009 at 12:02:32PM -0700, Matt Carlson wrote:
...
> > > tg3_nvram_read() returns a 32-bit word of NVRAM data, swapped according to
> > > the byteswapping rules for all register accesses.
> > 
> > Lets review that calling order I found in 2.6.29-rc8:
> > 	tg3_nvram_read -> tr32 -> tg3_read32 -> readl -> swab
> > 
> > o The swab is actually in tg3_nvram_read.
> 
> Right.
> 
> > o one should be able to get rid of indirect function call in tr32.
> 
> Well, there are situations where the read operation needs to be done
> using a different method.  So that the reader could concentrate on the
> higher-level algorthm, we hide the implementation details of the read
> through a function pointer.

I agree with "why" (problems demand it) but think "how" (implementation)
could be better. Indirect function calls are usually the next most
"expensive" operation after cache misses because they are not predictable
to the CPU (data dependency). I don't know as much about the compiler
behavior with respect to indirect function calls but expect the compiler
can't optimize well either.  So I usually prefer to only see indirect
function calls for "public" APIs and not internal functions.

So what are alternatives?
1) Embedding the choice in tr32() is the first obvious one. is use
   a switch statement and call the respective functions. The compiler
   can inline all the functions into one block since they are
   only being called from one place. Net cost is an extra branch.

2) Not as good as (1), but redefine tr32() to be a macro that is
   an indirect function call.  Maybe that's already happening via
   compiler inlining and I'm being obtuse. 

(1) would make code path explicit to HW/SW and work roughly the same
on all architectures.


> > >  On big endian machines,
> > > the data returned will be exactly as it would have been in NVRAM.  On
> > > little endian machines, the data will be swapped when compared to a raw
> > > read of the NVRAM.
> > 
> > Is this referring to the returned value from readl() or from tg3_nvram_read()?
> 
> It is referring to the value from readl().

Ok - than I hope it's clear the original assertion is not correct.

> 
> > The readl() return value will be the same in both LE and BE architectures.
> > readl() adjusts for endianess.
> > __raw_readl() does not.
> >
> > > To bring the data back to a bytestream format on LE
> > > systems, a swap is needed. 
> > 
> > For the above code path, if swap is needed on LE, it's also needed on BE.
> 
> Well, the 32-bit _value_ will be the same on architectures of either endianness.
> But our goal is to deal with the data as a bytestream.

Ok. This makes sense. But then maybe use __raw_read in this particular case?
Is it possible to read the bytes one at a time?

>  Consequently a > swap is needed.
> 
> For example, reading offset 0x0 of NVRAM (for legacy NVRAM formats)
> readl will always produce a value of 0x669955aa.  On LE machines, this 32-bit
> value will be laid out as :
> 
>   i             i + 3
>   |               |
>   V               V
> ---------------------
> | aa | 55 | 99 | 66 |
> ---------------------
> 
> On BE machines, the byte ordering is obviously reversed.  To do a
> memcpy, the bytes must be in the BE format.

memcpy() doesn't care which "order" bytes are in.
It treats the source/dest memory regions as byte streams as well.

> 
> > > After that, a memcpy should be all that is
> > > required to extract the MAC address.
> > > 
> > > Code that operates on data in a bytestream format will necessarily look
> > > different than code that operates on data as a 32-bit native endian
> > > quantity.  The code changes can look a bit drastic and are easily
> > > culpable at first glance.
> > 
> > This is true for code paths that deal with DMA data. It's not true
> > for readl() or writel() since those are already taking care of
> > the endianess.
> 
> Again, think bytestream.

The data is not a byte stream (yet) since we used readl() to retrieve
the value. Use cpu_to_le32() to convert what was originally an LE byte
stream back to a LE byte stream.

Using either __raw_read() or readb() would have avoided this confusion.


> > I'll stop here since most of the discussion is based on not knowing
> > that readl() takes care of endianess.
> 
> Yes.  I think the discussion will be resolved once we distinguish
> between operating on the data as a value and operating on the data as a
> bytestream.

Personally, it's easier for me compare "CPU register data" (aka "value")
vs "data in Memory" (which is inherently a byte stream). The CPU is the
one that is imposing an endianness to multi-byte data in memory.

thanks,
grant
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From - Thu Nov 08 21:04:03 2018
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Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
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Grant Grundler wrote:

> This is settled already I think...just following up to complete
> the conversation. Was "Out of Office" this past week.
>
> On Tue, Apr 14, 2009 at 12:02:32PM -0700, Matt Carlson wrote:
> ...
> > > > tg3_nvram_read() returns a 32-bit word of NVRAM data,
> swapped according to
> > > > the byteswapping rules for all register accesses.
> > >
> > > Lets review that calling order I found in 2.6.29-rc8:
> > >   tg3_nvram_read -> tr32 -> tg3_read32 -> readl -> swab
> > >
> > > o The swab is actually in tg3_nvram_read.
> >
> > Right.
> >
> > > o one should be able to get rid of indirect function call in tr32.
> >
> > Well, there are situations where the read operation needs to be done
> > using a different method.  So that the reader could
> concentrate on the
> > higher-level algorthm, we hide the implementation details
> of the read
> > through a function pointer.
>
> I agree with "why" (problems demand it) but think "how"
> (implementation)
> could be better. Indirect function calls are usually the next most
> "expensive" operation after cache misses because they are not
> predictable
> to the CPU (data dependency). I don't know as much about the compiler
> behavior with respect to indirect function calls but expect
> the compiler
> can't optimize well either.  So I usually prefer to only see indirect
> function calls for "public" APIs and not internal functions.

We've had a lengthy discussion on this topic with DaveM and jgarzik many
years ago.  Marc is down and I cannot find the archive.  It was agreed
that the function pointer approach is better than a cascade of if -
else if - else if approach.  The Branch target buffers in modern CPUs
are supposed to be able to predict these function pointer branches
if we are using the same method in the hot code path.

>
> So what are alternatives?
> 1) Embedding the choice in tr32() is the first obvious one. is use
>    a switch statement and call the respective functions. The compiler
>    can inline all the functions into one block since they are
>    only being called from one place. Net cost is an extra branch.
>
> 2) Not as good as (1), but redefine tr32() to be a macro that is
>    an indirect function call.  Maybe that's already happening via
>    compiler inlining and I'm being obtuse.
>
> (1) would make code path explicit to HW/SW and work roughly the same
> on all architectures.
>
>
> > > >  On big endian machines,
> > > > the data returned will be exactly as it would have been
> in NVRAM.  On
> > > > little endian machines, the data will be swapped when
> compared to a raw
> > > > read of the NVRAM.
> > >
> > > Is this referring to the returned value from readl() or
> from tg3_nvram_read()?
> >
> > It is referring to the value from readl().
>
> Ok - than I hope it's clear the original assertion is not correct.
>
> >
> > > The readl() return value will be the same in both LE and
> BE architectures.
> > > readl() adjusts for endianess.
> > > __raw_readl() does not.
> > >
> > > > To bring the data back to a bytestream format on LE
> > > > systems, a swap is needed.
> > >
> > > For the above code path, if swap is needed on LE, it's
> also needed on BE.
> >
> > Well, the 32-bit _value_ will be the same on architectures
> of either endianness.
> > But our goal is to deal with the data as a bytestream.
>
> Ok. This makes sense. But then maybe use __raw_read in this
> particular case?
> Is it possible to read the bytes one at a time?
>
> >  Consequently a > swap is needed.
> >
> > For example, reading offset 0x0 of NVRAM (for legacy NVRAM formats)
> > readl will always produce a value of 0x669955aa.  On LE
> machines, this 32-bit
> > value will be laid out as :
> >
> >   i             i + 3
> >   |               |
> >   V               V
> > ---------------------
> > | aa | 55 | 99 | 66 |
> > ---------------------
> >
> > On BE machines, the byte ordering is obviously reversed.  To do a
> > memcpy, the bytes must be in the BE format.
>
> memcpy() doesn't care which "order" bytes are in.
> It treats the source/dest memory regions as byte streams as well.

Yeah, I think the point is that the source data needs to be in the
desired byte stream order.

>
> >
> > > > After that, a memcpy should be all that is
> > > > required to extract the MAC address.
> > > >
> > > > Code that operates on data in a bytestream format will
> necessarily look
> > > > different than code that operates on data as a 32-bit
> native endian
> > > > quantity.  The code changes can look a bit drastic and
> are easily
> > > > culpable at first glance.
> > >
> > > This is true for code paths that deal with DMA data. It's not true
> > > for readl() or writel() since those are already taking care of
> > > the endianess.
> >
> > Again, think bytestream.
>
> The data is not a byte stream (yet) since we used readl() to retrieve
> the value. Use cpu_to_le32() to convert what was originally an LE byte
> stream back to a LE byte stream.
>
> Using either __raw_read() or readb() would have avoided this
> confusion.

It's a 32-bit so we cannot use readb().  I don't think the chip will decode
the byte enables.  I don't like to use __raw_read() because it does not have
the same memory barrier as regular readl().

>
>
> > > I'll stop here since most of the discussion is based on
> not knowing
> > > that readl() takes care of endianess.
> >
> > Yes.  I think the discussion will be resolved once we distinguish
> > between operating on the data as a value and operating on
> the data as a
> > bytestream.
>
> Personally, it's easier for me compare "CPU register data"
> (aka "value")
> vs "data in Memory" (which is inherently a byte stream). The
> CPU is the
> one that is imposing an endianness to multi-byte data in memory.

Not sure if I understand your statement.  The point is that we need
to provide a consistent view of the NVRAM data regardless of the
host machine's endianess.  So we present the data as an array of
bytes.

Thanks.

>
> thanks,
> grant
>
>

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From - Thu Nov 08 21:04:03 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
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Cc: 'Grant Grundler' <grundler@parisc-linux.org>,
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On Sun, Apr 19, 2009 at 12:30:26AM -0700, Michael Chan wrote:
[ Deleted my comments about indirect function calls. ]
...
> We've had a lengthy discussion on this topic with DaveM and jgarzik many
> years ago.  Marc is down and I cannot find the archive.  It was agreed
> that the function pointer approach is better than a cascade of if -
> else if - else if approach.  The Branch target buffers in modern CPUs
> are supposed to be able to predict these function pointer branches
> if we are using the same method in the hot code path.

Ok - thanks. I can look for that.

...
> > The data is not a byte stream (yet) since we used readl() to retrieve
> > the value. Use cpu_to_le32() to convert what was originally an LE byte
> > stream back to a LE byte stream.
> >
> > Using either __raw_read() or readb() would have avoided this
> > confusion.
> 
> It's a 32-bit so we cannot use readb().  I don't think the chip will decode
> the byte enables.

Ok. Thanks for clarifying.

> I don't like to use __raw_read() because it does not have
> the same memory barrier as regular readl().

I don't think the memory barrier is necessary in the "get" case.
wmb() is probably needed in the "set" case.

I was thinking that avoiding several byte swaps would make the code
more maintainable and one wmb() could be explained with a comment.
Remember, we are having this conversation because the MAC address
was incorrectly ordered on BE machine. Seems that a "load from NVRAM"
and "Store to HostMem" preserves the byte stream order in the same
way memcpy would. And would be heck of a lot easier to understand.

thanks,
grant
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From - Thu Nov 08 21:04:03 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] PARISC 2.6.30-rc1 advertise PCI devs after
	"assign_resources"
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To: Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>
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Alex Chiang asked me why PARISC was calling pci_bus_add_devices()
and pci_bus_assign_resources() in the opposite order from everyone else.
No reason and I couldn't see any data dependency.
Patch below applies cleanly to 2.6.30-rc2.

Later, I suspected the code worked only because no drivers would be
loaded/ready until much later in the system initialization sequence.

Tested "LBA" code on J6000 (32-bit) and A500 (64-bit SMP) with 2.6.30-rc2.
Not tested with any Dino controllers.
Not tested with PCI-PCI Bridge (TBD).

Reported-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

---
Kyle, Helge,
Including this into 2.6.31 would be fine since there is no
corresponding bug report.  I'd prefer sooner if possible but
recognize it doesn't have to. thanks!

 dino.c    |   10 +++++-----
 lba_pci.c |   10 +++++-----
 2 files changed, 10 insertions(+), 10 deletions(-)


diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 52ae0b1..d327c2d 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -1019,22 +1019,22 @@ static int __init dino_probe(struct parisc_device *dev)
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	bus = pci_scan_bus_parented(&dev->dev, dino_current_bus,
-				    &dino_cfg_ops, NULL);
+	dino_dev->hba.hba_bus = bus = pci_scan_bus_parented(&dev->dev,
+			 dino_current_bus, &dino_cfg_ops, NULL);
+
 	if(bus) {
-		pci_bus_add_devices(bus);
 		/* This code *depends* on scanning being single threaded
 		 * if it isn't, this global bus number count will fail
 		 */
 		dino_current_bus = bus->subordinate + 1;
 		pci_bus_assign_resources(bus);
+		pci_bus_add_devices(bus);
 	} else {
-		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (probably duplicate bus number %d)\n",
+		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
 		       dev_name(&dev->dev), dino_current_bus);
 		/* increment the bus number in case of duplicates */
 		dino_current_bus++;
 	}
-	dino_dev->hba.hba_bus = bus;
 	return 0;
 }
 
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 59fbbf1..f2661e1 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1509,10 +1509,6 @@ lba_driver_probe(struct parisc_device *dev)
 	lba_bus = lba_dev->hba.hba_bus =
 		pci_scan_bus_parented(&dev->dev, lba_dev->hba.bus_num.start,
 				cfg_ops, NULL);
-	if (lba_bus) {
-		lba_next_bus = lba_bus->subordinate + 1;
-		pci_bus_add_devices(lba_bus);
-	}
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
@@ -1533,7 +1529,6 @@ lba_driver_probe(struct parisc_device *dev)
 	}
 	pci_enable_bridges(lba_bus);
 

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Subject: Re: [PATCH] tg3: fix big endian MAC address collection failure
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To: "Grant Grundler" <grundler@parisc-linux.org>
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On Sun, Apr 19, 2009 at 03:32:02PM -0700, Grant Grundler wrote:
> > > The data is not a byte stream (yet) since we used readl() to retrieve
> > > the value. Use cpu_to_le32() to convert what was originally an LE byte
> > > stream back to a LE byte stream.
> > >
> > > Using either __raw_read() or readb() would have avoided this
> > > confusion.
> > 
> > It's a 32-bit so we cannot use readb().  I don't think the chip will decode
> > the byte enables.
> 
> Ok. Thanks for clarifying.
> 
> > I don't like to use __raw_read() because it does not have
> > the same memory barrier as regular readl().
> 
> I don't think the memory barrier is necessary in the "get" case.
> wmb() is probably needed in the "set" case.
> 
> I was thinking that avoiding several byte swaps would make the code
> more maintainable and one wmb() could be explained with a comment.
> Remember, we are having this conversation because the MAC address
> was incorrectly ordered on BE machine. Seems that a "load from NVRAM"
> and "Store to HostMem" preserves the byte stream order in the same
> way memcpy would. And would be heck of a lot easier to understand.

While we could reduce some of the byte swaps, I'm not sure this
problem will be any easier to grok for that effort.

The confusion in this case stems from the fact that the SEEPROM
interface deals with data in LE format.  This fact violates rule that
the chip always deals with its data in BE format.

We can move the discussion so that we are instead talking about values
as they appear on the bus, but then that just means we need to
highlight that this data comes across the bus in BE format, when every
other value (including the flash interface data) comes across in
LE format.  IOW, no matter where we choose to couch the discussion,
we will still have to somehow convey that the behaviors are backwards
of every other chip access.

The approach you are proposing here hides the problem in the behavioural
differences between __raw_read() and readl().  The problem with this is
that someone at some point in the future wants to make the same
conversion / optimization to the flash interface.  That person will then
be confronted with this exact same problem.

If we really want to make the code more maintainable, I might try
giving the EEPROM it's own "read as value" and "read as bytestream"
functions instead.  This would effectively hide the difference behind
an API.  The intentions would (still) be clear and we would avoid the
pointless byteswap in tg3_nvram_read_using_eeprom() and swapback in
tg3_nvram_read_be32() when attempting to read the data as a bytestream.
Swapping the readl() for __raw_read() then becomes an exercise in
optimization, and we could apply it equally to the flash interface.

The problem with this proposal is that we'd still have the ugly
swap32(be32_to_cpu(data)) wart in tg3_nvram_write_block_using_eeprom().
I'm not sure how I'd want to make that prettier.

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From - Thu Nov 08 21:04:04 2018
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From: Borislav Petkov <petkovbb@googlemail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] ide-cd: fix kernel crash on hppa regression
Date: Wed, 22 Apr 2009 08:10:46 +0200
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Cc: Linus <torvalds@linux-foundation.org>,
	Borislav Petkov <petkovbb@googlemail.com>,
	Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
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To: Helge Deller <deller@gmx.de>
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Hi,

On Thu, Apr 16, 2009 at 12:45:31AM +0200, Helge Deller wrote:
> With 2.6.30-rc2 I face a kernel crash on the 32bit hppa architecture 
> due to ide-cd when udev creates the device nodes at startup:
> 
> Kernel Fault: Code=26 regs=8ed34c40 (Addr=00000024)
> IASQ: 00000000 00000000 IAOQ: 1034b5ac 1034b5b0
>  IIR: 4ab30048    ISR: 00000000  IOR: 00000024
>  CPU:        0   CR30: 8ed34000 CR31: ffff55ff
>  ORIG_R28: 00000000
>  IAOQ[0]: ide_complete_rq+0x2c/0x70
>  IAOQ[1]: ide_complete_rq+0x30/0x70
>  RP(r2): cdrom_newpc_intr+0x178/0x46c
> Backtrace:
>  [<1035c608>] cdrom_newpc_intr+0x178/0x46c
>  [<1034c494>] ide_intr+0x1b0/0x214
>  [<1016d284>] handle_IRQ_event+0x70/0x150
>  [<1016d4b0>] __do_IRQ+0x14c/0x1cc
>  [<102f7864>] superio_interrupt+0x88/0xbc
>  [<1016d284>] handle_IRQ_event+0x70/0x150
>  [<1016d4b0>] __do_IRQ+0x14c/0x1cc
>  [<10112efc>] do_cpu_irq_mask+0x9c/0xd0
>  [<10116068>] intr_return+0x0/0x4
> 
> This crash seems to happen due to an uninitialized variable "rc".
> The compiler even warns about that:
>   CC      drivers/ide/ide-cd.o                                                         
> /mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/ide/ide-cd.c: In function `cdrom_newpc_intr':
> /mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/ide/ide-cd.c:612: warning: `rc' might be used uninitialized in this function
> 
> After applying the trivial patch below, which just initializes 
> the variable to zero, the kernel doesn't crash any longer:
> 
> Starting the hotplug events dispatcher: udevd.
> Synthesizing the initial hotplug events...
> hda: command error: status=0x51 { DriveReady SeekComplete Error }
> hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
> ide: failed opcode was: unknown
> done.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
Acked-by: Borislav Petkov <petkovbb@gmail.com>

The original fix was correct. Helge, sorry for the delay but I wanted to
make sure that this wasn't caused by recent rewrite in another area of
ide-cd, thanks.

Bart, please apply.

-- 
Regards/Gruss,
    Boris.
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From - Thu Nov 08 21:04:04 2018
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From: Borislav Petkov <petkovbb@googlemail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] ide-cd: fix kernel crash on hppa regression
Date: Wed, 22 Apr 2009 08:12:53 +0200
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References: <49E6638B.8090700@gmx.de> <20090416063735.GA21742@liondog.tnic> <49E7945E.7030508@gmx.de> <20090417065344.GC6806@liondog.tnic> <49E82C8F.5060202@gmx.de>
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Cc: Linus <torvalds@linux-foundation.org>,
	Borislav Petkov <petkovbb@googlemail.com>,
	Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
	linux-parisc <linux-parisc@vger.kernel.org>,
	"Rafael J. Wysocki" <rjw@sisk.pl>
To: Helge Deller <deller@gmx.de>
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On Fri, Apr 17, 2009 at 09:15:27AM +0200, Helge Deller wrote:
[..]
> >> BTW, even with my patch ATAPI CDROM accesses don't work with the current kernel...
> > 
> > What do you mean by that, please elaborate?
> 
> I meant:
> a) Without my patch the kernel did crash (see backtrace in original mail)
> b) with my patch the kernel booted to login prompt, but I got those messages on the console:
>  hda: command error: status=0x51 { DriveReady SeekComplete Error }
>  hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
>  ide: failed opcode was: unknown
> Nevertheless, mounting a cdrom in the drive didn't suceeded with same/similiar messages, but
> this could even be because of the parisc superio driver...

Is it possible to isolate it and test without the superio driver?

-- 
Regards/Gruss,
    Boris.
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From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] ide-cd: fix kernel crash on hppa regression
Date: Wed, 22 Apr 2009 20:27:43 +0200
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Cc: Helge Deller <deller@gmx.de>,
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On Wednesday 22 April 2009 08:10:46 Borislav Petkov wrote:
> Hi,
> 
> On Thu, Apr 16, 2009 at 12:45:31AM +0200, Helge Deller wrote:
> > With 2.6.30-rc2 I face a kernel crash on the 32bit hppa architecture 
> > due to ide-cd when udev creates the device nodes at startup:
> > 
> > Kernel Fault: Code=26 regs=8ed34c40 (Addr=00000024)
> > IASQ: 00000000 00000000 IAOQ: 1034b5ac 1034b5b0
> >  IIR: 4ab30048    ISR: 00000000  IOR: 00000024
> >  CPU:        0   CR30: 8ed34000 CR31: ffff55ff
> >  ORIG_R28: 00000000
> >  IAOQ[0]: ide_complete_rq+0x2c/0x70
> >  IAOQ[1]: ide_complete_rq+0x30/0x70
> >  RP(r2): cdrom_newpc_intr+0x178/0x46c
> > Backtrace:
> >  [<1035c608>] cdrom_newpc_intr+0x178/0x46c
> >  [<1034c494>] ide_intr+0x1b0/0x214
> >  [<1016d284>] handle_IRQ_event+0x70/0x150
> >  [<1016d4b0>] __do_IRQ+0x14c/0x1cc
> >  [<102f7864>] superio_interrupt+0x88/0xbc
> >  [<1016d284>] handle_IRQ_event+0x70/0x150
> >  [<1016d4b0>] __do_IRQ+0x14c/0x1cc
> >  [<10112efc>] do_cpu_irq_mask+0x9c/0xd0
> >  [<10116068>] intr_return+0x0/0x4
> > 
> > This crash seems to happen due to an uninitialized variable "rc".
> > The compiler even warns about that:
> >   CC      drivers/ide/ide-cd.o                                                         
> > /mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/ide/ide-cd.c: In function `cdrom_newpc_intr':
> > /mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/ide/ide-cd.c:612: warning: `rc' might be used uninitialized in this function
> > 
> > After applying the trivial patch below, which just initializes 
> > the variable to zero, the kernel doesn't crash any longer:
> > 
> > Starting the hotplug events dispatcher: udevd.
> > Synthesizing the initial hotplug events...
> > hda: command error: status=0x51 { DriveReady SeekComplete Error }
> > hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
> > ide: failed opcode was: unknown
> > done.
> > 
> > Signed-off-by: Helge Deller <deller@gmx.de>
> Acked-by: Borislav Petkov <petkovbb@gmail.com>
> 
> The original fix was correct. Helge, sorry for the delay but I wanted to
> make sure that this wasn't caused by recent rewrite in another area of
> ide-cd, thanks.
> 
> Bart, please apply.

Ok, done!
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From - Thu Nov 08 21:04:04 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] ide-cd: fix kernel crash on hppa regression
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Cc: Linus <torvalds@linux-foundation.org>,
	Borislav Petkov <petkovbb@googlemail.com>,
	Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
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	"Rafael J. Wysocki" <rjw@sisk.pl>
To: petkovbb@gmail.com
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Borislav Petkov wrote:
> On Fri, Apr 17, 2009 at 09:15:27AM +0200, Helge Deller wrote:
> [..]
>>>> BTW, even with my patch ATAPI CDROM accesses don't work with the current kernel...
>>> What do you mean by that, please elaborate?
>> I meant:
>> a) Without my patch the kernel did crash (see backtrace in original mail)
>> b) with my patch the kernel booted to login prompt, but I got those messages on the console:
>>  hda: command error: status=0x51 { DriveReady SeekComplete Error }
>>  hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
>>  ide: failed opcode was: unknown
>> Nevertheless, mounting a cdrom in the drive didn't suceeded with same/similiar messages, but
>> this could even be because of the parisc superio driver...
> 
> Is it possible to isolate it and test without the superio driver?

No, since the superio controller provides the IDE ports.

Best regards,
Helge
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From - Thu Nov 08 21:04:04 2018
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Subject: Re: [PATCH 6/7] parisc: add parameter to read_cr16()
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Coly Li wrote:
> This patch modifies parameter of au1x_counter1_read() from 'void' to 'struct
> clocksource *cs', which fixes compile warning for incompatible parameter type.
> 
> Signed-off-by: Coly Li <coly.li@suse.de>
> Cc: Helge Deller <deller@gmx.de>

Patch is good.
Thanks!

Acked-by: Helge Deller <deller@gmx.de>


> Cc: Ingo Molnar <mingo@elte.hu>
> ---
>  arch/parisc/kernel/time.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
> index d4dd056..d97d07f 100644
> --- a/arch/parisc/kernel/time.c
> +++ b/arch/parisc/kernel/time.c
> @@ -173,7 +173,7 @@ EXPORT_SYMBOL(profile_pc);
> 
>  /* clock source code */
> 
> -static cycle_t read_cr16(void)
> +static cycle_t read_cr16(struct clocksource *cs)
>  {
>  	return get_cycles();
>  }
> 

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	"linux-parisc" <linux-parisc@vger.kernel.org>,
	"Rafael J. Wysocki" <rjw@sisk.pl>
To: Helge Deller <deller@gmx.de>
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On Wednesday 22 April 2009 23:13:12 Helge Deller wrote:
> Borislav Petkov wrote:
> > On Fri, Apr 17, 2009 at 09:15:27AM +0200, Helge Deller wrote:
> > [..]
> >>>> BTW, even with my patch ATAPI CDROM accesses don't work with the current kernel...
> >>> What do you mean by that, please elaborate?
> >> I meant:
> >> a) Without my patch the kernel did crash (see backtrace in original mail)
> >> b) with my patch the kernel booted to login prompt, but I got those messages on the console:
> >>  hda: command error: status=0x51 { DriveReady SeekComplete Error }
> >>  hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
> >>  ide: failed opcode was: unknown
> >> Nevertheless, mounting a cdrom in the drive didn't suceeded with same/similiar messages, but
> >> this could even be because of the parisc superio driver...
> > 
> > Is it possible to isolate it and test without the superio driver?
> 
> No, since the superio controller provides the IDE ports.

Is 2.6.29 working ok?  What about 2.6.30-rc1 + your fix?
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From: Nicholas Leippe <nick.leippe@whitecanyon.com>
Newsgroups: gmane.linux.ports.parisc
Subject: SMP: CPU:1 is stuck. on J6750
Date: Fri, 24 Apr 2009 09:15:44 -0600
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There were some posts about this, the most recent is:

http://marc.info/?l=linux-parisc&m=121009166228271&w=2

I'm still experiencing this issue on a J6750.
I've gotten this w/kernels 2.6.26 thru 2.6.29.
Other than the missing cpu, things seem to function just fine.
Increasing the timeout in smp.c line 410 to 100000 did not help.

Beginning of dmesg:

Linux version 2.6.29-gentoo-r1 (root@hppa32_build) (gcc version 4.2.4 (Gentoo 
4.2.4 p1.0)) #2 SMP Fri Apr 24 08:50:02 MD
T 2009
unwind_init: start = 0x406cdfe4, end = 0x4070a964, entries = 15512
WARNING: Out of order unwind entry! 00000000406d0234 and 00000000406d0244
WARNING: Out of order unwind entry! 00000000406d0244 and 00000000406d0254
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005dd0 00000491 00000000 00000002 77a74184 100000f0 00000008 000000b2 
000000b2
vers  00000301
CPUID vers 19 rev 11 (0x0000026b)
capabilities 0x7
model 9000/785/J6750
Total Memory: 3840 MB
On node 0 totalpages: 983040
free_area_init_node: node 0, pgdat 4073d040, node_mem_map 40faf000
  Normal zone: 13440 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 969600 pages, LIFO batch:31
LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
SMP: bootstrap CPU ID is 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 969600
Kernel command line: root=/dev/md1 raid=noautodetect md=1,/dev/sda4 
md=d0,/dev/sda3 console=tty0 sti=10/4/2/0 sti_font=V
GA8x16 palo_kernel=2/vmlinux-2.6.29-r1b
md: Will configure md1 (super-block) from /dev/sda4, below.
md: Will configure md0 (super-block) from /dev/sda3, below.
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 160x64
console handover: boot [ttyB0] -> real [tty0]
Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Memory: 3855616k/3932160k available (4971k kernel code, 76080k reserved, 1884k 
data, 236k init)
Calibrating delay loop... 1743.25 BogoMIPS (lpj=8716288)
Security Framework initialized
Mount-cache hash table entries: 256
Brought up 1 CPUs
net_namespace: 560 bytes
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfffffffffed34000 [10/2] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. Duet W2 at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5dd, 0x00004 }
7. Duet W2 at 0xfffffffffffa2000 [34] { 0, 0x0, 0x5dd, 0x00004 }
8. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x00a, 0x00009 }
Enabling regular chassis codes support v0.05
Releasing cpu 1 now, hpa=fffffffffffa2000
SMP: CPU:1 is stuck.
CPU(s): 2 x PA8700 (PCX-W2) at 875.000000 MHz

[cut]


I'm happy to test patches and to provide more information to help.

-- 
Nicholas Leippe

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From: tsbogend@alpha.franken.de (Thomas Bogendoerfer)
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Hi,

I found some spare time to continue hacking Madze's superdome. With
some really strange hacks (see below) I'm now able to see a successful
mount of a root filesystem over NFS, but no sign of userspace yet.

The strange hacks have to do with output to console and timing.
Here is a list of things I've added to get both partitions up to
the point mounting NFS root:

1. add 50 dummy prinkts after print_parisc_devices()
2. do a while (pdc_iodc_getc() != 'a') in iosapic.c after dumping
   Interrupt Routing Table (only needed if DEBUG_IOSAPIC_IRT is
   enabled)
3. do a while (pdc_iodc_getc() != 'b') in lba_hw_init before touching
   anything
4. carefull press a and b during boot. I need to press b for every
   found Elroy. If I'm too fast the partition locks up

Does this ring any bells ? Looks like a very timing sensitive thing,
but what could be the cause of it ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                                [ RFC1925, 2.3 ]
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] ide-cd: fix kernel crash on hppa regression
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Cc: petkovbb@gmail.com, Linus <torvalds@linux-foundation.org>,
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	Kyle McMartin <kyle@mcmartin.ca>,
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Bartlomiej Zolnierkiewicz wrote:
> On Wednesday 22 April 2009 23:13:12 Helge Deller wrote:
>> Borislav Petkov wrote:
>>> On Fri, Apr 17, 2009 at 09:15:27AM +0200, Helge Deller wrote:
>>> [..]
>>>>>> BTW, even with my patch ATAPI CDROM accesses don't work with the current kernel...
>>>>> What do you mean by that, please elaborate?
>>>> I meant:
>>>> a) Without my patch the kernel did crash (see backtrace in original mail)
>>>> b) with my patch the kernel booted to login prompt, but I got those messages on the console:
>>>>  hda: command error: status=0x51 { DriveReady SeekComplete Error }
>>>>  hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
>>>>  ide: failed opcode was: unknown
>>>> Nevertheless, mounting a cdrom in the drive didn't suceeded with same/similiar messages, but
>>>> this could even be because of the parisc superio driver...
>>> Is it possible to isolate it and test without the superio driver?
>> No, since the superio controller provides the IDE ports.
> 
> Is 2.6.29 working ok?  What about 2.6.30-rc1 + your fix?

* 2.6.29 works perfectly.
* 2.6.30-rc3 (includes my patch) does work as well, but I see quite often those messages:
   hda: command error: status=0x51 { DriveReady SeekComplete Error }
   hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
   ide: failed opcode was: unknown
* drivers/parisc/superio.c had no (important) changes between 2.6.29 and 2.6.30-rcX
* to me it seems your changes to drivers/ide/ns87415.c have raised those problems.
* maybe you added some inb() in the new paths, which should call superio_ide_inb()
  (see to of ns87415.c) instead?
* it seems the problem happens more often in some fault-paths, for example when 
  reading a faulty disc in the cdrom drive

Best regards,
Helge



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Cc: petkovbb@gmail.com, Linus <torvalds@linux-foundation.org>,
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To: Helge Deller <deller@gmx.de>
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On Saturday 25 April 2009 13:19:08 Helge Deller wrote:
> Bartlomiej Zolnierkiewicz wrote:
> > On Wednesday 22 April 2009 23:13:12 Helge Deller wrote:
> >> Borislav Petkov wrote:
> >>> On Fri, Apr 17, 2009 at 09:15:27AM +0200, Helge Deller wrote:
> >>> [..]
> >>>>>> BTW, even with my patch ATAPI CDROM accesses don't work with the current kernel...
> >>>>> What do you mean by that, please elaborate?
> >>>> I meant:
> >>>> a) Without my patch the kernel did crash (see backtrace in original mail)
> >>>> b) with my patch the kernel booted to login prompt, but I got those messages on the console:
> >>>>  hda: command error: status=0x51 { DriveReady SeekComplete Error }
> >>>>  hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
> >>>>  ide: failed opcode was: unknown
> >>>> Nevertheless, mounting a cdrom in the drive didn't suceeded with same/similiar messages, but
> >>>> this could even be because of the parisc superio driver...
> >>> Is it possible to isolate it and test without the superio driver?
> >> No, since the superio controller provides the IDE ports.
> > 
> > Is 2.6.29 working ok?  What about 2.6.30-rc1 + your fix?
> 
> * 2.6.29 works perfectly.
> * 2.6.30-rc3 (includes my patch) does work as well, but I see quite often those messages:
>    hda: command error: status=0x51 { DriveReady SeekComplete Error }
>    hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
>    ide: failed opcode was: unknown

That is kind of expected given your report about -rc2.  Verifying -rc1 + fix
would be useful in starting to narrow down the scope of changes to look at.

> * drivers/parisc/superio.c had no (important) changes between 2.6.29 and 2.6.30-rcX
> * to me it seems your changes to drivers/ide/ns87415.c have raised those problems.
> * maybe you added some inb() in the new paths, which should call superio_ide_inb()
>   (see to of ns87415.c) instead?

I checked this now and unfortunately it doesn't seem like it.

> * it seems the problem happens more often in some fault-paths, for example when 
>   reading a faulty disc in the cdrom drive

I think that we should start with finding out whether this is ns87415
specific regression or a more general ide-cd one.

commit a6d67ffa7dfe9515d8f2051a76b14c82b748475a ("ns87415: use custom
->dma_{start,end} to handle ns87415_prepare_drive()") looks like a good
candidate to make the distinction between potentially bad ns87415
changes and potentially bad ide-cd ones.

Thus please give commit 5ae5412d9a23b05ab08461b202bad21ad8f6b66d ("ide:
add ide_dma_prepare() helper") with your ide-cd fix applied a try.

[ You may also go ahead and do full git bisection between 2.6.29 and
  2.6.30-rc2 applying/removing your ide-cd fix for each iteration. ]

Thanks,
Bart
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] ide-cd: fix kernel crash on hppa regression
Date: Sun, 26 Apr 2009 00:51:46 +0200
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Cc: petkovbb@gmail.com, Linus <torvalds@linux-foundation.org>,
	Borislav Petkov <petkovbb@googlemail.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
	linux-parisc <linux-parisc@vger.kernel.org>,
	"Rafael J. Wysocki" <rjw@sisk.pl>
To: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Hi Bart,

Bartlomiej Zolnierkiewicz wrote:
> On Saturday 25 April 2009 13:19:08 Helge Deller wrote:
>> Bartlomiej Zolnierkiewicz wrote:
>>> On Wednesday 22 April 2009 23:13:12 Helge Deller wrote:
>>>> Borislav Petkov wrote:
>>>>> On Fri, Apr 17, 2009 at 09:15:27AM +0200, Helge Deller wrote:
>>>>> [..]
>>>>>>>> BTW, even with my patch ATAPI CDROM accesses don't work with the current kernel...
>>>>>>> What do you mean by that, please elaborate?
>>>>>> I meant:
>>>>>> a) Without my patch the kernel did crash (see backtrace in original mail)
>>>>>> b) with my patch the kernel booted to login prompt, but I got those messages on the console:
>>>>>>  hda: command error: status=0x51 { DriveReady SeekComplete Error }
>>>>>>  hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
>>>>>>  ide: failed opcode was: unknown
>>>>>> Nevertheless, mounting a cdrom in the drive didn't suceeded with same/similiar messages, but
>>>>>> this could even be because of the parisc superio driver...
>>>>> Is it possible to isolate it and test without the superio driver?
>>>> No, since the superio controller provides the IDE ports.
>>> Is 2.6.29 working ok?  What about 2.6.30-rc1 + your fix?
>> * 2.6.29 works perfectly.
>> * 2.6.30-rc3 (includes my patch) does work as well, but I see quite often those messages:
>>    hda: command error: status=0x51 { DriveReady SeekComplete Error }
>>    hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
>>    ide: failed opcode was: unknown
> 
> That is kind of expected given your report about -rc2.  Verifying -rc1 + fix
> would be useful in starting to narrow down the scope of changes to look at.
> 
>> * drivers/parisc/superio.c had no (important) changes between 2.6.29 and 2.6.30-rcX
>> * to me it seems your changes to drivers/ide/ns87415.c have raised those problems.
>> * maybe you added some inb() in the new paths, which should call superio_ide_inb()
>>   (see to of ns87415.c) instead?
> 
> I checked this now and unfortunately it doesn't seem like it.
> 
>> * it seems the problem happens more often in some fault-paths, for example when 
>>   reading a faulty disc in the cdrom drive
> 
> I think that we should start with finding out whether this is ns87415
> specific regression or a more general ide-cd one.
> 
> commit a6d67ffa7dfe9515d8f2051a76b14c82b748475a ("ns87415: use custom
> ->dma_{start,end} to handle ns87415_prepare_drive()") looks like a good
> candidate to make the distinction between potentially bad ns87415
> changes and potentially bad ide-cd ones.

Reverting this commit still showed the errors mentioned above.

> Thus please give commit 5ae5412d9a23b05ab08461b202bad21ad8f6b66d ("ide:
> add ide_dma_prepare() helper") with your ide-cd fix applied a try.

That is a hard one. Just reverting it (with or without the other one above) prevents
me to build a kernel due to compiler errors.

Instead I tried 2.6.30-rc1 and 2.6.30-rc2 (all with my simple patch).
2.6.30-rc1 worked without problems.
2.6.30-rc2 did showed the errors.
(I should mention, that the cdrom does work even if those messages are printed).
The diff of drivers/ide/ns87415.c between those two versions seems unproblematic.
Then, after inserting "outb(ATA_DEVCTL_OBS, io_ports->ctl_addr);" to 2.6.30-rc2 didn't fixed it either.

So, I think there is some generic problems in the generic ide cdrom stack, which was
introduced between 2.6.30-rc1 and -rc2.

Hope this helps you further.

Helge
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From: Borislav Petkov <petkovbb@googlemail.com>
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Subject: Re: [PATCH] ide-cd: fix kernel crash on hppa regression
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Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
	Linus <torvalds@linux-foundation.org>,
	Borislav Petkov <petkovbb@googlemail.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
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Hi,

On Sun, Apr 26, 2009 at 12:51:46AM +0200, Helge Deller wrote:
..

> > Thus please give commit 5ae5412d9a23b05ab08461b202bad21ad8f6b66d ("ide:
> > add ide_dma_prepare() helper") with your ide-cd fix applied a try.
> 
> That is a hard one. Just reverting it (with or without the other one above) prevents
> me to build a kernel due to compiler errors.
> 
> Instead I tried 2.6.30-rc1 and 2.6.30-rc2 (all with my simple patch).
> 2.6.30-rc1 worked without problems.
> 2.6.30-rc2 did showed the errors.
> (I should mention, that the cdrom does work even if those messages are printed).
> The diff of drivers/ide/ns87415.c between those two versions seems unproblematic.
> Then, after inserting "outb(ATA_DEVCTL_OBS, io_ports->ctl_addr);" to 2.6.30-rc2 didn't fixed it either.
> 
> So, I think there is some generic problems in the generic ide cdrom stack, which was
> introduced between 2.6.30-rc1 and -rc2.
> 
> Hope this helps you further.

Not really, since I'm assuming that it is this particular hardware
confguration you have that triggers this. It would still be very helpful
if you'd bisected it since you've narrowed it down to the [30-rc1
30-rc2] interval and that isn't going to be a large number of kernel
compiles :).

Thanks.

-- 
Regards/Gruss,
    Boris.
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From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Subject: Re: [PATCH] ide-cd: fix kernel crash on hppa regression
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Cc: Helge Deller <deller@gmx.de>,
	Linus <torvalds@linux-foundation.org>,
	Borislav Petkov <petkovbb@googlemail.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
	"linux-parisc" <linux-parisc@vger.kernel.org>,
	"Rafael J. Wysocki" <rjw@sisk.pl>
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On Sunday 26 April 2009 08:33:32 Borislav Petkov wrote:
> Hi,
> 
> On Sun, Apr 26, 2009 at 12:51:46AM +0200, Helge Deller wrote:
> ..
> 
> > > Thus please give commit 5ae5412d9a23b05ab08461b202bad21ad8f6b66d ("ide:
> > > add ide_dma_prepare() helper") with your ide-cd fix applied a try.
> > 
> > That is a hard one. Just reverting it (with or without the other one above) prevents
> > me to build a kernel due to compiler errors.

Sorry for not explaining this properly -- I meant doing git checkout at this
commit not reverting it (anyway it isn't needed now as we know that this change
is good since it was done before -rc1).
 
> > Instead I tried 2.6.30-rc1 and 2.6.30-rc2 (all with my simple patch).
> > 2.6.30-rc1 worked without problems.
> > 2.6.30-rc2 did showed the errors.
> > (I should mention, that the cdrom does work even if those messages are printed).
> > The diff of drivers/ide/ns87415.c between those two versions seems unproblematic.
> > Then, after inserting "outb(ATA_DEVCTL_OBS, io_ports->ctl_addr);" to 2.6.30-rc2 didn't fixed it either.
> > 
> > So, I think there is some generic problems in the generic ide cdrom stack, which was
> > introduced between 2.6.30-rc1 and -rc2.
> > 
> > Hope this helps you further.
> 
> Not really, since I'm assuming that it is this particular hardware
> confguration you have that triggers this. It would still be very helpful
> if you'd bisected it since you've narrowed it down to the [30-rc1
> 30-rc2] interval and that isn't going to be a large number of kernel
> compiles :).

Yes, there is only 26 drivers/ide commits in-between, just do:

	git bisect start v2.6.30-rc1 v2.6.30-rc2 drivers/ide

build it, test it, mark it with:

	git bisect bad

or

	git bisect good

and then repeat build-test-mark cycle until the guilty commit is found.

Thanks,
Bart
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From - Thu Nov 08 21:04:05 2018
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Subject: Re: SMP: CPU:1 is stuck. on J6750
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On Fri, Apr 24, 2009 at 09:15:44AM -0600, Nicholas Leippe wrote:
> I'm still experiencing this issue on a J6750.
> I've gotten this w/kernels 2.6.26 thru 2.6.29.
> Other than the missing cpu, things seem to function just fine.
> Increasing the timeout in smp.c line 410 to 100000 did not help.
> 

Does it work in 32-bit mode?

I seem to recall being unable to reproduce this. It's very strange...

regards, Kyle
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On Mon, Apr 27, 2009 at 03:29:44PM -0600, Nicholas Leippe wrote:
> On Mon Apr 27 2009 11:01:51 you wrote:
> > On Fri, Apr 24, 2009 at 09:15:44AM -0600, Nicholas Leippe wrote:
> > > I'm still experiencing this issue on a J6750.
> > > I've gotten this w/kernels 2.6.26 thru 2.6.29.
> > > Other than the missing cpu, things seem to function just fine.
> > > Increasing the timeout in smp.c line 410 to 100000 did not help.
> >
> > Does it work in 32-bit mode?
> 
> I built it as a 32bit kernel and it seems to work just fine.
> (Only difference is CONFIG_64BIT and 32bit compiler).

The dmesg you posted was a 64-bit kernel. See the "the 64-bit kernel has
started message".

To build a 32-bit kernel, CONFIG_64BIT needs to be off...

thanks, Kyle
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Forwarded to linux-parisc list for reference:
This patch is needed for 2.6.30 to make the IDE CDROM working on c3k
and similiar machines.
Helge

-------- Original Message --------
Subject: [PATCH] ide-cd: fix REQ_QUIET tests in cdrom_decode_status
Date: Tue, 28 Apr 2009 23:38:14 +0200
From: Borislav Petkov <petkovbb@googlemail.com>
Reply-To: petkovbb@gmail.com
To: linux-ide@vger.kernel.org
CC: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,	Helge Deller <deller@gmx.de>, Jens Axboe <jens.axboe@oracle.com>,	Sergei Shtylyov <sshtylyov@ru.mvista.com>
References: <49F6DC50.7000106@ru.mvista.com>

Here's a non-wrapped version, Sergei thanks for catching that.

--
From: Borislav Petkov <petkovbb@gmail.com>
Date: Mon, 27 Apr 2009 14:11:32 +0200
Subject: [PATCH] ide-cd: fix REQ_QUIET tests in cdrom_decode_status

Original patch (dfa4411cc3a690011cab90e9a536938795366cf9) was buggy.
This is a more proper fix which introduces blk_rq_quiet() macro
alleviating the need for dumb, too short caching variables.

Thanks to Helge Deller and Bart for debugging this.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
---
 drivers/ide/ide-cd.c   |    9 ++++-----
 include/linux/blkdev.h |    1 +
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 07fb9e4..e4df578 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -282,7 +282,6 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq = hwif->rq;
 	int err, sense_key, do_end_request = 0;
-	u8 quiet = rq->cmd_flags & REQ_QUIET;
 
 	/* get the IDE error register */
 	err = ide_read_error(drive);
@@ -317,7 +316,7 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
 		} else {
 			cdrom_saw_media_change(drive);
 
-			if (blk_fs_request(rq) && !quiet)
+			if (blk_fs_request(rq) && !blk_rq_quiet(rq))
 				printk(KERN_ERR PFX "%s: tray open\n",
 					drive->name);
 		}
@@ -352,7 +351,7 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
 		 * No point in retrying after an illegal request or data
 		 * protect error.
 		 */
-		if (!quiet)
+		if (!blk_rq_quiet(rq))
 			ide_dump_status(drive, "command error", stat);
 		do_end_request = 1;
 		break;
@@ -361,14 +360,14 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
 		 * No point in re-trying a zillion times on a bad sector.
 		 * If we got here the error is not correctable.
 		 */
-		if (!quiet)
+		if (!blk_rq_quiet(rq))
 			ide_dump_status(drive, "media error "
 					"(bad sector)", stat);
 		do_end_request = 1;
 		break;
 	case BLANK_CHECK:
 		/* disk appears blank? */
-		if (!quiet)
+		if (!blk_rq_quiet(rq))
 			ide_dump_status(drive, "media error (blank)",
 					stat);
 		do_end_request = 1;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index ba54c83..6f841fb 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -598,6 +598,7 @@ enum {
 				 blk_failfast_transport(rq) ||	\
 				 blk_failfast_driver(rq))
 #define blk_rq_started(rq)	((rq)->cmd_flags & REQ_STARTED)
+#define blk_rq_quiet(rq)	((rq)->cmd_flags & REQ_QUIET)
 
 #define blk_account_rq(rq)	(blk_rq_started(rq) && (blk_fs_request(rq) || blk_discard_rq(rq))) 
 
-- 
1.6.2.4


-- 
Regards/Gruss,
    Boris.

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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: [PATCH 6/6] Add support for __read_mostly to linux/cache.h
Date: Thu, 30 Apr 2009 15:32:36 -0400
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Signed-off-by: Tim Abbott <tabbott@mit.edu>
---
 include/linux/cache.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/include/linux/cache.h b/include/linux/cache.h
index 97e2488..99d8a6f 100644
--- a/include/linux/cache.h
+++ b/include/linux/cache.h
@@ -13,7 +13,13 @@
 #endif
 
 #ifndef __read_mostly
+#ifdef CONFIG_HAVE_READ_MOSTLY_DATA
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+#define __READ_MOSTLY .section ".data.read_mostly", "aw"
+#else
 #define __read_mostly
+#define __READ_MOSTLY
+#endif /* CONFIG_HAVE_READ_MOSTLY_DATA */
 #endif
 
 #ifndef ____cacheline_aligned
-- 
1.6.2.1




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Subject: [PATCH 2/6] Add new NOSAVE_DATA linker script macro.
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This patch is preparation for replacing most ".data.nosave" in the
kernel with macros, so that the section name can later be changed
without having to touch a lot of the kernel.

The long-term goal here is to be able to change the kernel's magic
section names to those that are compatible with -ffunction-sections
-fdata-sections.  This requires renaming all magic sections with names
of the form ".data.foo".

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 include/asm-generic/vmlinux.lds.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 3d88c87..f5ebd2b 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -124,6 +124,13 @@
 	. = ALIGN(PAGE_SIZE);						\
 	*(.bss.page_aligned)
 
+#define NOSAVE_DATA							\
+	. = ALIGN(PAGE_SIZE);						\
+	__nosave_begin = .;						\
+	*(.data.nosave)							\
+	. = ALIGN(PAGE_SIZE);						\
+	__nosave_end = .;
+
 #define RO_DATA(align)							\
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
-- 
1.6.2.1




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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1584>

This patch is preparation for replacing most ".data.read_mostly" in
the kernel with macros, so that the section name can later be changed
without having to touch a lot of the kernel.

The long-term goal here is to be able to change the kernel's magic
section names to those that are compatible with -ffunction-sections
-fdata-sections.  This requires renaming all magic sections with names
of the form ".data.foo".

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 include/asm-generic/vmlinux.lds.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 4b020e8..a4b4f4a 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -139,6 +139,10 @@
 	. = ALIGN(alignment);						\
 	*(.data.init_task)
 
+#define READ_MOSTLY_DATA(alignment)					\
+	. = ALIGN(alignment);						\
+	*(.data.read_mostly)
+
 #define RO_DATA(align)							\
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
-- 
1.6.2.1




From - Thu Nov 08 21:04:06 2018
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From: Tim Abbott <tabbott@MIT.EDU>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: [PATCH 3/6] Add new CACHELINE_ALIGNED_DATA linker script macro.
Date: Thu, 30 Apr 2009 15:32:33 -0400
Lines: 35
Approved: news@gmane.org
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Cc: Anders Kaseorg <andersk@mit.edu>, Waseem Daher <wdaher@mit.edu>,
	Denys Vlasenko <vda.linux@googlemail.com>,
	Jeff Arnold <jbarnold@mit.edu>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Bryan Wu <cooloney@kernel.org>,
	Chris Zankel <chris@zankel.net>,
	Cyrill Gorcunov <gorcunov@openvz.org>,
	David Howells <dhowells@redhat.com>,
	"David S. Miller" <davem@davemloft.net>, dev-etrax@axis.com,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Greg Ungerer <gerg@uclinux.org>,
	Haavard Skinnemoen <hskinnemoen@atmel.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Helge Deller <deller@gmx.de>,
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	Kyle McMartin <kyle@mcmartin.ca>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-alpha@vger.kernel.org
To: Sam Ravnborg <sam@ravnborg.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1585>

This patch is preparation for replacing most ".data.cacheline_aligned"
in the kernel with macros, so that the section name can later be
changed without having to touch a lot of the kernel.

The long-term goal here is to be able to change the kernel's magic
section names to those that are compatible with -ffunction-sections
-fdata-sections.  This requires renaming all magic sections with names
of the form ".data.foo".

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 include/asm-generic/vmlinux.lds.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index f5ebd2b..fa7801b 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -131,6 +131,10 @@
 	. = ALIGN(PAGE_SIZE);						\
 	__nosave_end = .;
 
+#define CACHELINE_ALIGNED_DATA(alignment)				\
+	. = ALIGN(alignment);						\
+	*(.data.cacheline_aligned)
+
 #define RO_DATA(align)							\
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
-- 
1.6.2.1




From - Thu Nov 08 21:04:06 2018
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X-Mozilla-Keys:                                                                                 
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From: Tim Abbott <tabbott@MIT.EDU>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: [PATCH 0/6] macros for section name cleanup
Date: Thu, 30 Apr 2009 15:32:30 -0400
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Cc: Anders Kaseorg <andersk@mit.edu>, Waseem Daher <wdaher@mit.edu>,
	Denys Vlasenko <vda.linux@googlemail.com>,
	Jeff Arnold <jbarnold@mit.edu>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Bryan Wu <cooloney@kernel.org>,
	Chris Zankel <chris@zankel.net>,
	Cyrill Gorcunov <gorcunov@openvz.org>,
	David Howells <dhowells@redhat.com>,
	"David S. Miller" <davem@davemloft.net>, dev-etrax@axis.com,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Greg Ungerer <gerg@uclinux.org>,
	Haavard Skinnemoen <hskinnemoen@atmel.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Helge Deller <deller@gmx.de>,
	Hirokazu Takata <takata@linux-m32r.org>,
	"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
	Jeff Dike <jdike@addtoit.com>,
	Jesper Nilsson <jesper.nilsson@axis.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-alpha@vger.kernel.org
To: Sam Ravnborg <sam@ravnborg.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1586>

Here are the architecture-independent macro definitions needed for
to clean up the kernel's section names.  The overall diffstat from
this section name cleanup project is:

 96 files changed, 261 insertions(+), 503 deletions(-)

The decrease results from removing a lot of redundancy in the linker
scripts.

The long-term goal here is to add support for building the kernel with
-ffunction-sections -fdata-sections.  This requires renaming all the
magic section names in the kernel of the form .text.foo, .data.foo,
.bss.foo, and .rodata.foo to not have collisions with sections
generated for code like:

static int nosave = 0; /* -fdata-sections places in .data.nosave */
static void head(); /* -ffunction-sections places in .text.head */

Sam Ravnborg proposed that rather than just renaming all the sections
outright, we should start by first getting more control over the
section names used in the kernel so that we can later rename sections
without touching too many files.  These patch series implement that
cleanup.  Later, there will be another patch series to actually rename
the sections.

I'm hoping we can get just these macro definitions into 2.6.30 so that
the arch maintainers don't have to grab the macro definitions for
their trees while reviewing the patches for 2.6.31.

Shortly, I'm going to send one patch series for each of the
architectures updating those architectures to use these new macros
(and otherwise cleaning up section names on those architectures).

	-Tim Abbott

Tim Abbott (6):
  Add new macros for page-aligned data and bss sections.
  Add new NOSAVE_DATA linker script macro.
  Add new CACHELINE_ALIGNED_DATA linker script macro.
  Add new INIT_TASK_DATA() linker script macro.
  Add new READ_MOSTLY_DATA(align) linker script macro.
  Add support for __read_mostly to linux/cache.h

 include/asm-generic/vmlinux.lds.h |   27 +++++++++++++++++++++++++++
 include/linux/cache.h             |    6 ++++++
 include/linux/init_task.h         |    3 +++
 include/linux/linkage.h           |    9 +++++++++
 4 files changed, 45 insertions(+), 0 deletions(-)




From - Thu Nov 08 21:04:06 2018
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X-Mozilla-Keys:                                                                                 
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From: Tim Abbott <tabbott@MIT.EDU>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: [PATCH 1/6] Add new macros for page-aligned data and bss sections.
Date: Thu, 30 Apr 2009 15:32:31 -0400
Lines: 62
Approved: news@gmane.org
Message-ID: <1241119956-31453-2-git-send-email-tabbott@mit.edu>
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Cc: Anders Kaseorg <andersk@mit.edu>, Waseem Daher <wdaher@mit.edu>,
	Denys Vlasenko <vda.linux@googlemail.com>,
	Jeff Arnold <jbarnold@mit.edu>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Bryan Wu <cooloney@kernel.org>,
	Chris Zankel <chris@zankel.net>,
	Cyrill Gorcunov <gorcunov@openvz.org>,
	David Howells <dhowells@redhat.com>,
	"David S. Miller" <davem@davemloft.net>, dev-etrax@axis.com,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Greg Ungerer <gerg@uclinux.org>,
	Haavard Skinnemoen <hskinnemoen@atmel.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Helge Deller <deller@gmx.de>,
	Hirokazu Takata <takata@linux-m32r.org>,
	"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
	Jeff Dike <jdike@addtoit.com>,
	Jesper Nilsson <jesper.nilsson@axis.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-alpha@vger.kernel.org
To: Sam Ravnborg <sam@ravnborg.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1587>

This patch is preparation for replacing most uses of
".bss.page_aligned" and ".data.page_aligned" in the kernel with
macros, so that the section name can later be changed without having
to touch a lot of the kernel.

The long-term goal here is to be able to change the kernel's magic
section names to those that are compatible with -ffunction-sections
-fdata-sections.  This requires renaming all magic sections with names
of the form ".data.foo".

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: David Howells <dhowells@redhat.com>
---
 include/asm-generic/vmlinux.lds.h |    8 ++++++++
 include/linux/linkage.h           |    9 +++++++++
 2 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 89853bc..3d88c87 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -116,6 +116,14 @@
 	FTRACE_EVENTS()							\
 	TRACE_SYSCALLS()
 
+#define PAGE_ALIGNED_DATA						\
+	. = ALIGN(PAGE_SIZE);						\
+	*(.data.page_aligned)
+
+#define PAGE_ALIGNED_BSS						\
+	. = ALIGN(PAGE_SIZE);						\
+	*(.bss.page_aligned)
+
 #define RO_DATA(align)							\
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index fee9e59..af051fc 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -22,6 +22,15 @@
 #define __page_aligned_bss	__section(.bss.page_aligned) __aligned(PAGE_SIZE)
 
 /*
+ * For assembly routines.
+ *
+ * Note when using these that you must specify the appropriate
+ * alignment directives yourself
+ */
+#define __PAGE_ALIGNED_DATA	.section ".data.page_aligned", "aw", @progbits
+#define __PAGE_ALIGNED_BSS	.section ".bss.page_aligned", "aw", @nobits
+
+/*
  * This is used by architectures to keep arguments on the stack
  * untouched by the compiler by keeping them live until the end.
  * The argument stack may be owned by the assembly-language
-- 
1.6.2.1




From - Thu Nov 08 21:04:06 2018
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X-Mozilla-Keys:                                                                                 
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From: Tim Abbott <tabbott@MIT.EDU>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: [PATCH 4/6] Add new INIT_TASK_DATA() linker script macro.
Date: Thu, 30 Apr 2009 15:32:34 -0400
Lines: 49
Approved: news@gmane.org
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Cc: Anders Kaseorg <andersk@mit.edu>, Waseem Daher <wdaher@mit.edu>,
	Denys Vlasenko <vda.linux@googlemail.com>,
	Jeff Arnold <jbarnold@mit.edu>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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	Cyrill Gorcunov <gorcunov@openvz.org>,
	David Howells <dhowells@redhat.com>,
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	Kyle McMartin <kyle@mcmartin.ca>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-alpha@vger.kernel.org
To: Sam Ravnborg <sam@ravnborg.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1588>

This patch is preparation for replacing most ".data.init_task" in the
kernel with macros, so that the section name can later be changed
without having to touch a lot of the kernel.

The long-term goal here is to be able to change the kernel's magic
section names to those that are compatible with -ffunction-sections
-fdata-sections.  This requires renaming all magic sections with names
of the form ".data.foo".

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 include/asm-generic/vmlinux.lds.h |    4 ++++
 include/linux/init_task.h         |    3 +++
 2 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index fa7801b..4b020e8 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -135,6 +135,10 @@
 	. = ALIGN(alignment);						\
 	*(.data.cacheline_aligned)
 
+#define INIT_TASK_DATA(alignment)					\
+	. = ALIGN(alignment);						\
+	*(.data.init_task)
+
 #define RO_DATA(align)							\
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index d87247d..e555baa 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -184,5 +184,8 @@ extern struct cred init_cred;
 	LIST_HEAD_INIT(cpu_timers[2]),					\
 }
 
+/* Attach to the init_task data structure for proper alignment */
+#define __init_task_data __attribute__((__section__(".data.init_task")))
+
 
 #endif
-- 
1.6.2.1




From - Thu Nov 08 21:04:06 2018
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From: Tim Abbott <tabbott@MIT.EDU>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: [PATCH v2 4/6] Add new INIT_TASK_DATA() linker script macro.
Date: Thu, 30 Apr 2009 15:54:11 -0400
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Cc: Linux kernel mailing list <linux-kernel@vger.kernel.org>,
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	Jeff Dike <jdike@addtoit.com>,
	Jesper Nilsson <jesper.nilsson@axis.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Linus Torvalds <
To: Sam Ravnborg <sam@ravnborg.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1589>

This patch is preparation for replacing most ".data.init_task" in the
kernel with macros, so that the section name can later be changed
without having to touch a lot of the kernel.

The long-term goal here is to be able to change the kernel's magic
section names to those that are compatible with -ffunction-sections
-fdata-sections.  This requires renaming all magic sections with names
of the form ".data.foo".

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 include/asm-generic/vmlinux.lds.h |    4 ++++
 include/linux/init_task.h         |    3 +++
 2 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index fa7801b..4b020e8 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -135,6 +135,10 @@
 	. = ALIGN(alignment);						\
 	*(.data.cacheline_aligned)
 
+#define INIT_TASK_DATA(alignment)					\
+	. = ALIGN(alignment);						\
+	*(.data.init_task)
+
 #define RO_DATA(align)							\
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index d87247d..e555baa 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -184,5 +184,8 @@ extern struct cred init_cred;
 	LIST_HEAD_INIT(cpu_timers[2]),					\
 }
 
+/* Attach to the init_task data structure for proper alignment */
+#define __init_task_data __attribute__((__section__(".data.init_task")))
+
 
 #endif
-- 
1.6.2.1




From - Thu Nov 08 21:04:06 2018
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From: Tim Abbott <tabbott@MIT.EDU>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: [PATCH v2 3/6] Add new CACHELINE_ALIGNED_DATA linker script macro.
Date: Thu, 30 Apr 2009 15:54:10 -0400
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Cc: Linux kernel mailing list <linux-kernel@vger.kernel.org>,
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	Jeff Dike <jdike@addtoit.com>,
	Jesper Nilsson <jesper.nilsson@axis.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Linus Torvalds <
To: Sam Ravnborg <sam@ravnborg.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1590>

This patch is preparation for replacing most ".data.cacheline_aligned"
in the kernel with macros, so that the section name can later be
changed without having to touch a lot of the kernel.

The long-term goal here is to be able to change the kernel's magic
section names to those that are compatible with -ffunction-sections
-fdata-sections.  This requires renaming all magic sections with names
of the form ".data.foo".

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 include/asm-generic/vmlinux.lds.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index f5ebd2b..fa7801b 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -131,6 +131,10 @@
 	. = ALIGN(PAGE_SIZE);						\
 	__nosave_end = .;
 
+#define CACHELINE_ALIGNED_DATA(alignment)				\
+	. = ALIGN(alignment);						\
+	*(.data.cacheline_aligned)
+
 #define RO_DATA(align)							\
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
-- 
1.6.2.1




From - Thu Nov 08 21:04:06 2018
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From: Tim Abbott <tabbott@MIT.EDU>
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Subject: [PATCH v2 5/6] Add new READ_MOSTLY_DATA(align) linker script macro.
Date: Thu, 30 Apr 2009 15:54:12 -0400
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To: Sam Ravnborg <sam@ravnborg.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1591>

This patch is preparation for replacing most ".data.read_mostly" in
the kernel with macros, so that the section name can later be changed
without having to touch a lot of the kernel.

The long-term goal here is to be able to change the kernel's magic
section names to those that are compatible with -ffunction-sections
-fdata-sections.  This requires renaming all magic sections with names
of the form ".data.foo".

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 include/asm-generic/vmlinux.lds.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 4b020e8..a4b4f4a 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -139,6 +139,10 @@
 	. = ALIGN(alignment);						\
 	*(.data.init_task)
 
+#define READ_MOSTLY_DATA(alignment)					\
+	. = ALIGN(alignment);						\
+	*(.data.read_mostly)
+
 #define RO_DATA(align)							\
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
-- 
1.6.2.1




From - Thu Nov 08 21:04:07 2018
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From: Tim Abbott <tabbott@MIT.EDU>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: [PATCH v2 6/6] Add support for __read_mostly to linux/cache.h
Date: Thu, 30 Apr 2009 15:54:13 -0400
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To: Sam Ravnborg <sam@ravnborg.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1592>

Signed-off-by: Tim Abbott <tabbott@mit.edu>
---
 include/linux/cache.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/include/linux/cache.h b/include/linux/cache.h
index 97e2488..99d8a6f 100644
--- a/include/linux/cache.h
+++ b/include/linux/cache.h
@@ -13,7 +13,13 @@
 #endif
 
 #ifndef __read_mostly
+#ifdef CONFIG_HAVE_READ_MOSTLY_DATA
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+#define __READ_MOSTLY .section ".data.read_mostly", "aw"
+#else
 #define __read_mostly
+#define __READ_MOSTLY
+#endif /* CONFIG_HAVE_READ_MOSTLY_DATA */
 #endif
 
 #ifndef ____cacheline_aligned
-- 
1.6.2.1




From - Thu Nov 08 21:04:07 2018
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From: Tim Abbott <tabbott-DPNOqEs/LNQ@public.gmane.org>
Newsgroups: gmane.linux.uclinux.microblaze,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: [PATCH v2 2/6] Add new NOSAVE_DATA linker script macro.
Date: Thu, 30 Apr 2009 15:54:09 -0400
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1593>

This patch is preparation for replacing most ".data.nosave" in the
kernel with macros, so that the section name can later be changed
without having to touch a lot of the kernel.

The long-term goal here is to be able to change the kernel's magic
section names to those that are compatible with -ffunction-sections
-fdata-sections.  This requires renaming all magic sections with names
of the form ".data.foo".

Signed-off-by: Tim Abbott <tabbott-3s7WtUTddSA@public.gmane.org>
Cc: Sam Ravnborg <sam-uyr5N9Q2VtJg9hUCZPvPmw@public.gmane.org>
---
 include/asm-generic/vmlinux.lds.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 3d88c87..f5ebd2b 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -124,6 +124,13 @@
 	. = ALIGN(PAGE_SIZE);						\
 	*(.bss.page_aligned)
 
+#define NOSAVE_DATA							\
+	. = ALIGN(PAGE_SIZE);						\
+	__nosave_begin = .;						\
+	*(.data.nosave)							\
+	. = ALIGN(PAGE_SIZE);						\
+	__nosave_end = .;
+
 #define RO_DATA(align)							\
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
-- 
1.6.2.1


From - Thu Nov 08 21:04:07 2018
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From: Tim Abbott <tabbott-DPNOqEs/LNQ@public.gmane.org>
Newsgroups: gmane.linux.uclinux.microblaze,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: [PATCH v2 1/6] Add new macros for page-aligned data and bss sections.
Date: Thu, 30 Apr 2009 15:54:08 -0400
Lines: 60
Approved: news@gmane.org
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        "David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>, dev-etrax-VrBV9hrLPhE@public.gmane.org,
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        Greg Ungerer <gerg-JBU5SbJe1FlAfugRpC6u6w@public.gmane.org>,
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        Heiko Carstens <heiko.carstens-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>,
        Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>, Hirokazu Takata <takata-TMSiXQfHlQjsTix1lMzHGQ@public.gmane.org>,
        "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>, Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
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To: Sam Ravnborg <sam-uyr5N9Q2VtJg9hUCZPvPmw@public.gmane.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1594>

This patch is preparation for replacing most uses of
".bss.page_aligned" and ".data.page_aligned" in the kernel with
macros, so that the section name can later be changed without having
to touch a lot of the kernel.

The long-term goal here is to be able to change the kernel's magic
section names to those that are compatible with -ffunction-sections
-fdata-sections.  This requires renaming all magic sections with names
of the form ".data.foo".

Signed-off-by: Tim Abbott <tabbott-3s7WtUTddSA@public.gmane.org>
Cc: Sam Ravnborg <sam-uyr5N9Q2VtJg9hUCZPvPmw@public.gmane.org>
Acked-by: David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
 include/asm-generic/vmlinux.lds.h |    8 ++++++++
 include/linux/linkage.h           |    9 +++++++++
 2 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 89853bc..3d88c87 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -116,6 +116,14 @@
 	FTRACE_EVENTS()							\
 	TRACE_SYSCALLS()
 
+#define PAGE_ALIGNED_DATA						\
+	. = ALIGN(PAGE_SIZE);						\
+	*(.data.page_aligned)
+
+#define PAGE_ALIGNED_BSS						\
+	. = ALIGN(PAGE_SIZE);						\
+	*(.bss.page_aligned)
+
 #define RO_DATA(align)							\
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index fee9e59..af051fc 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -22,6 +22,15 @@
 #define __page_aligned_bss	__section(.bss.page_aligned) __aligned(PAGE_SIZE)
 
 /*
+ * For assembly routines.
+ *
+ * Note when using these that you must specify the appropriate
+ * alignment directives yourself
+ */
+#define __PAGE_ALIGNED_DATA	.section ".data.page_aligned", "aw", @progbits
+#define __PAGE_ALIGNED_BSS	.section ".bss.page_aligned", "aw", @nobits
+
+/*
  * This is used by architectures to keep arguments on the stack
  * untouched by the compiler by keeping them live until the end.
  * The argument stack may be owned by the assembly-language
-- 
1.6.2.1


From - Thu Nov 08 21:04:07 2018
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Path: news.gmane.org!not-for-mail
From: Tim Abbott <tabbott@MIT.EDU>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: [PATCH v2 0/6] macros for section name cleanup
Date: Thu, 30 Apr 2009 15:54:07 -0400
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Cc: Linux kernel mailing list <linux-kernel@vger.kernel.org>,
	Anders Kaseorg <andersk@mit.edu>,
	Waseem Daher <wdaher@mit.edu>,
	Denys Vlasenko <vda.linux@googlemail.com>,
	Jeff Arnold <jbarnold@mit.edu>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Bryan Wu <cooloney@kernel.org>,
	Chris Zankel <chris@zankel.net>,
	Cyrill Gorcunov <gorcunov@openvz.org>,
	David Howells <dhowells@redhat.com>,
	"David S. Miller" <davem@davemloft.net>, dev-etrax@axis.com,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Greg Ungerer <gerg@uclinux.org>,
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	Heiko Carstens <heiko.carstens@de.ibm.com>,
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	Hirokazu Takata <takata@linux-m32r.org>,
	"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
	Jeff Dike <jdike@addtoit.com>,
	Jesper Nilsson <jesper.nilsson@axis.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
	Linus Torvalds <
To: Sam Ravnborg <sam@ravnborg.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1595>

(this patch series differs from v1 only in the CC list; some of the
architecture lists I sent the previous one to are moderated against
non-members; all replies should go to this version).

Here are the architecture-independent macro definitions needed for
to clean up the kernel's section names.  The overall diffstat from
this section name cleanup project is:

 96 files changed, 261 insertions(+), 503 deletions(-)

The decrease results from removing a lot of redundancy in the linker
scripts.

The long-term goal here is to add support for building the kernel with
-ffunction-sections -fdata-sections.  This requires renaming all the
magic section names in the kernel of the form .text.foo, .data.foo,
.bss.foo, and .rodata.foo to not have collisions with sections
generated for code like:

static int nosave = 0; /* -fdata-sections places in .data.nosave */
static void head(); /* -ffunction-sections places in .text.head */

Sam Ravnborg proposed that rather than just renaming all the sections
outright, we should start by first getting more control over the
section names used in the kernel so that we can later rename sections
without touching too many files.  These patch series implement that
cleanup.  Later, there will be another patch series to actually rename
the sections.

I'm hoping we can get just these macro definitions into 2.6.30 so that
the arch maintainers don't have to grab the macro definitions for
their trees while reviewing the patches for 2.6.31.

Shortly, I'm going to send one patch series for each of the
architectures updating those architectures to use these new macros
(and otherwise cleaning up section names on those architectures).

	-Tim Abbott

Tim Abbott (6):
  Add new macros for page-aligned data and bss sections.
  Add new NOSAVE_DATA linker script macro.
  Add new CACHELINE_ALIGNED_DATA linker script macro.
  Add new INIT_TASK_DATA() linker script macro.
  Add new READ_MOSTLY_DATA(align) linker script macro.
  Add support for __read_mostly to linux/cache.h

 include/asm-generic/vmlinux.lds.h |   27 +++++++++++++++++++++++++++
 include/linux/cache.h             |    6 ++++++
 include/linux/init_task.h         |    3 +++
 include/linux/linkage.h           |    9 +++++++++
 4 files changed, 45 insertions(+), 0 deletions(-)




From - Thu Nov 08 21:04:07 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] fix ldcw inline assembler
Date: Thu, 30 Apr 2009 23:39:45 +0200
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To: linux-parisc <linux-parisc@vger.kernel.org>,
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This "fix ldcw assembler" patch below is really an old one now, but sadly it never got applied.

I just tried it again. Without this patch I always see login-problems when ssh-ing into
my parisc box. The very first time sshd just drops the connection (Connection closed by remote host).
With this patch I didn't faced this problem again.

I'm wondering, if not other userspace problems suddenly go away then as well,
e.g. the uid/gid issues others are seeing:
http://marc.info/?l=linux-parisc&m=121114269417948&w=2

Kyle, please apply.

Helge

-------- Original Message --------
Subject: [PATCH] ldcw inline assembler patch
From: Dave Anglin

There are two reasons to expose the memory *a in the asm:

1) To prevent the compiler from discarding a preceeding write to *a, and
2) to prevent it from caching *a in a register over the asm.

The change has had a few days testing with a SMP build of 2.6.22.19
running on a rp3440.

This patch is about the correctness of the __ldcw() macro itself. 
The use of the macro should be confined to small inline functions 
to try to limit the effect of clobbering memory on GCC's optimization 
of loads and stores.

Signed-off-by: Dave Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
index ee80c92..d91357b 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -168,8 +168,8 @@ static inline void set_eiem(unsigned long val)
 /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
 #define __ldcw(a) ({						\
 	unsigned __ret;						\
-	__asm__ __volatile__(__LDCW " 0(%1),%0"			\
-		: "=r" (__ret) : "r" (a));			\
+	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
+		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
 	__ret;							\
 })
 
	

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From - Thu Nov 08 21:04:07 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH] fix ldcw inline assembler
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On Thu, Apr 30, 2009 at 11:39:45PM +0200, Helge Deller wrote:
> This "fix ldcw assembler" patch below is really an old one now, but sadly it never got applied.
> 
> I just tried it again. Without this patch I always see login-problems when ssh-ing into
> my parisc box. The very first time sshd just drops the connection (Connection closed by remote host).
> With this patch I didn't faced this problem again.
> 
> I'm wondering, if not other userspace problems suddenly go away then as well,
> e.g. the uid/gid issues others are seeing:
> http://marc.info/?l=linux-parisc&m=121114269417948&w=2
> 
> Kyle, please apply.
> 

gotcha.
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Forwarded to parisc mailing list (and patchwork).
Patch is good.

Signed-off-by: Helge Deller <deller@gmx.de>

-------- Original Message --------
Subject: [PATCH 6/7] parisc: add parameter to read_cr16()
Date: Thu, 23 Apr 2009 03:06:22 +0800
From: Coly Li <coly.li@suse.de>
Reply-To: coly.li@suse.de
Organization: SuSE Labs
To: LKML <linux-kernel@vger.kernel.org>
CC: Helge Deller <deller@gmx.de>, Ingo Molnar <mingo@elte.hu>

This patch modifies parameter of au1x_counter1_read() from 'void' to 'struct
clocksource *cs', which fixes compile warning for incompatible parameter type.

Signed-off-by: Coly Li <coly.li@suse.de>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@elte.hu>
---
 arch/parisc/kernel/time.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index d4dd056..d97d07f 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -173,7 +173,7 @@ EXPORT_SYMBOL(profile_pc);

 /* clock source code */

-static cycle_t read_cr16(void)
+static cycle_t read_cr16(struct clocksource *cs)
 {
 	return get_cycles();
 }

-- 
Coly Li
SuSE Labs



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Subject: [PATCH 2/5] parisc: use new macro for .data.cacheline_aligned section.
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.data.cacheline_aligned should not need a separate output section;
this change moves it into the .data section.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/vmlinux.lds.S |    6 +-----
 1 files changed, 1 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 0cc9658..b5936c9 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -104,15 +104,11 @@ SECTIONS
 	/* Data */
 	.data : {
 		NOSAVE_DATA
+		CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
 		DATA_DATA
 		CONSTRUCTORS
 	}
 
-	. = ALIGN(L1_CACHE_BYTES);
-	.data.cacheline_aligned : {
-		*(.data.cacheline_aligned)
-	}

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To: Sam Ravnborg <sam@ravnborg.org>
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.data.read_mostly should not need a separate output section; this
change moves it into the .data section.

I used alignment L1_CACHE_BYTES instead of 16 since the whole point is
for read-mostly data to have different cache lines than other stuff.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/vmlinux.lds.S |    8 +-------
 1 files changed, 1 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index c8a528d..3176407 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -94,19 +94,13 @@ SECTIONS
 		__stop___unwind = .;
 	}
 
-	/* rarely changed data like cpu maps */
-	. = ALIGN(16);
-	.data.read_mostly : {
-		*(.data.read_mostly)
-	}

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Subject: [PATCH 1/5] parisc: use NOSAVE_DATA macro for .data.nosave section.
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.data.nosave should not need a separate output section; this change
moves it into the .data section.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/vmlinux.lds.S |   12 +-----------
 1 files changed, 1 insertions(+), 11 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index fd2cc4f..0cc9658 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -103,6 +103,7 @@ SECTIONS
 	. = ALIGN(L1_CACHE_BYTES);
 	/* Data */
 	.data : {
+		NOSAVE_DATA
 		DATA_DATA
 		CONSTRUCTORS
 	}
@@ -118,17 +119,6 @@ SECTIONS
 		*(.data.lock_aligned)
 	}
 
-	/* nosave data is really only used for software suspend...it's here
-	 * just in case we ever implement it
-	 */
-	. = ALIGN(PAGE_SIZE);
-	__nosave_begin = .;
-	.data_nosave : {
-		*(.data.nosave)
-	}
-	. = ALIGN(PAGE_SIZE);
-	__nosave_end = .;

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	Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
	linux-parisc@vger.kernel.org, Tim Abbott <tabbott@mit.edu>
To: Sam Ravnborg <sam@ravnborg.org>
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This patch series cleans up the section names on the parisc
architecture.  It requires the architecture-independent macro
definitions from this patch series:

<http://www.spinics.net/lists/mips/msg33499.html>

The long-term goal here is to add support for building the kernel with
-ffunction-sections -fdata-sections.  This requires renaming all the
magic section names in the kernel of the form .text.foo, .data.foo,
.bss.foo, and .rodata.foo to not have collisions with sections
generated for code like:

static int nosave = 0; /* -fdata-sections places in .data.nosave */
static void head(); /* -ffunction-sections places in .text.head */

Note that these patches have not been boot-tested (aside from testing
the analogous changes on x86), since I don't have access to the
appropriate hardware.

	-Tim Abbott


Tim Abbott (5):
  parisc: use NOSAVE_DATA macro for .data.nosave section.
  parisc: use new macro for .data.cacheline_aligned section.
  parisc: use new macros for .data.init_task.
  parisc: use new macro for .data.read_mostly section.
  parisc: convert to new generic read_mostly support.

 arch/parisc/Kconfig              |    3 +++
 arch/parisc/include/asm/cache.h  |    2 --
 arch/parisc/kernel/head.S        |    3 ++-
 arch/parisc/kernel/init_task.c   |    2 +-
 arch/parisc/kernel/vmlinux.lds.S |   36 +++++-------------------------------
 5 files changed, 11 insertions(+), 35 deletions(-)

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Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/Kconfig             |    3 +++
 arch/parisc/include/asm/cache.h |    2 --
 arch/parisc/kernel/head.S       |    3 ++-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 9038f39..cc113d0 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -101,6 +101,9 @@ config ARCH_MAY_HAVE_PC_FDC
 	depends on BROKEN
 	default y
 
+config HAVE_READ_MOSTLY_DATA
+	def_bool y
+
 source "init/Kconfig"
 
 source "kernel/Kconfig.freezer"
diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
index 32c2cca..21e0865 100644
--- a/arch/parisc/include/asm/cache.h
+++ b/arch/parisc/include/asm/cache.h
@@ -28,8 +28,6 @@
 
 #define SMP_CACHE_BYTES L1_CACHE_BYTES
 
-#define __read_mostly __attribute__((__section__(".data.read_mostly")))
-
 void parisc_cache_init(void);	/* initializes cache-flushing */
 void disable_sr_hashing_asm(int); /* low level support for above */
 void disable_sr_hashing(void);   /* turns off space register hashing */
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index 0e3d9f9..712d29d 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -19,6 +19,7 @@
 #include <asm/assembly.h>
 #include <asm/pgtable.h>
 
+#include <linux/cache.h>
 #include <linux/linkage.h>
 #include <linux/init.h>
 
@@ -345,7 +346,7 @@ smp_slave_stext:
 ENDPROC(stext)
 
 #ifndef CONFIG_64BIT
-	.section .data.read_mostly
+	__READ_MOSTLY
 
 	.align	4
 	.export	$global$,data
-- 
1.6.2.1

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.data.init_task should not need a separate output section; this change
moves it into the .data section.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/init_task.c   |    2 +-
 arch/parisc/kernel/vmlinux.lds.S |   10 ++--------
 2 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/arch/parisc/kernel/init_task.c b/arch/parisc/kernel/init_task.c
index 1e25a45..8ee17ea 100644
--- a/arch/parisc/kernel/init_task.c
+++ b/arch/parisc/kernel/init_task.c
@@ -48,7 +48,7 @@ EXPORT_SYMBOL(init_mm);
  * "init_task" linker map entry..
  */
 union thread_union init_thread_union
-	__attribute__((aligned(128))) __attribute__((__section__(".data.init_task"))) =
+	__attribute__((aligned(128))) __init_task_data =
 		{ INIT_THREAD_INFO(init_task) };
 
 #if PT_NLEVELS == 3
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index b5936c9..c8a528d 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -103,6 +103,8 @@ SECTIONS
 	. = ALIGN(L1_CACHE_BYTES);
 	/* Data */
 	.data : {
+		/* assembler code expects init_task to be 16k aligned */
+		INIT_TASK_DATA(16384)
 		NOSAVE_DATA
 		CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
 		DATA_DATA
@@ -133,14 +135,6 @@ SECTIONS
 	}
 	__bss_stop = .;
 
-
-	/* assembler code expects init_task to be 16k aligned */
-	. = ALIGN(16384);
-	/* init_task */
-	.data.init_task : {
-		*(.data.init_task)
-	}

From - Thu Nov 08 21:04:08 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] fix ldcw inline assembler
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To: kyle@mcmartin.ca (Kyle McMartin)
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> On Thu, Apr 30, 2009 at 11:39:45PM +0200, Helge Deller wrote:
> > This "fix ldcw assembler" patch below is really an old one now, but sadly it never got applied.
> > 
> > I just tried it again. Without this patch I always see login-problems when ssh-ing into
> > my parisc box. The very first time sshd just drops the connection (Connection closed by remote host).
> > With this patch I didn't faced this problem again.
> > 
> > I'm wondering, if not other userspace problems suddenly go away then as well,
> > e.g. the uid/gid issues others are seeing:
> > http://marc.info/?l=linux-parisc&m=121114269417948&w=2
> > 
> > Kyle, please apply.
> > 
> 
> gotcha.

Kyle, can you try and push it into 2.6.30?  It fixes a major security hole.

I've tried it with 2.6.30-rc4 on my c3750 and agree with Helge that it
fixes the ssh bug that I had on this machine.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Sam Ravnborg <sam@ravnborg.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: Re: [PATCH v2 0/6] macros for section name cleanup
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Cc: Linux kernel mailing list <linux-kernel@vger.kernel.org>,
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To: Tim Abbott <tabbott@MIT.EDU>
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On Thu, Apr 30, 2009 at 03:54:07PM -0400, Tim Abbott wrote:
> (this patch series differs from v1 only in the CC list; some of the
> architecture lists I sent the previous one to are moderated against
> non-members; all replies should go to this version).
> 
> Here are the architecture-independent macro definitions needed for
> to clean up the kernel's section names.  The overall diffstat from
> this section name cleanup project is:
> 
>  96 files changed, 261 insertions(+), 503 deletions(-)
> 
> The decrease results from removing a lot of redundancy in the linker
> scripts.
> 
> The long-term goal here is to add support for building the kernel with
> -ffunction-sections -fdata-sections.  This requires renaming all the
> magic section names in the kernel of the form .text.foo, .data.foo,
> .bss.foo, and .rodata.foo to not have collisions with sections
> generated for code like:
> 
> static int nosave = 0; /* -fdata-sections places in .data.nosave */
> static void head(); /* -ffunction-sections places in .text.head */
> 
> Sam Ravnborg proposed that rather than just renaming all the sections
> outright, we should start by first getting more control over the
> section names used in the kernel so that we can later rename sections
> without touching too many files.  These patch series implement that
> cleanup.  Later, there will be another patch series to actually rename
> the sections.
> 
> I'm hoping we can get just these macro definitions into 2.6.30 so that
> the arch maintainers don't have to grab the macro definitions for
> their trees while reviewing the patches for 2.6.31.
> 
> Shortly, I'm going to send one patch series for each of the
> architectures updating those architectures to use these new macros
> (and otherwise cleaning up section names on those architectures).

Hi Tim.

We agreed to get the common stuff and one architecture done before
proceeding with the rest.
Please stick to that plan so we avoid patch-bombing lkml + maintainers.

When we have this ready it will be a simple one-patch-per-arch to cover
the rest.

I will comment on your common patches for now.

	Sam



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Subject: Re: [PATCH v2 1/6] Add new macros for page-aligned data and bss sections.
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To: Tim Abbott <tabbott@MIT.EDU>
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On Thu, Apr 30, 2009 at 03:54:08PM -0400, Tim Abbott wrote:
> This patch is preparation for replacing most uses of
> ".bss.page_aligned" and ".data.page_aligned" in the kernel with
> macros, so that the section name can later be changed without having
> to touch a lot of the kernel.
> 
> The long-term goal here is to be able to change the kernel's magic
> section names to those that are compatible with -ffunction-sections
> -fdata-sections.  This requires renaming all magic sections with names
> of the form ".data.foo".
> 
> Signed-off-by: Tim Abbott <tabbott@mit.edu>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Acked-by: David Howells <dhowells@redhat.com>
> ---
>  include/asm-generic/vmlinux.lds.h |    8 ++++++++
>  include/linux/linkage.h           |    9 +++++++++
>  2 files changed, 17 insertions(+), 0 deletions(-)
> 
> diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
> index 89853bc..3d88c87 100644
> --- a/include/asm-generic/vmlinux.lds.h
> +++ b/include/asm-generic/vmlinux.lds.h
> @@ -116,6 +116,14 @@
>  	FTRACE_EVENTS()							\
>  	TRACE_SYSCALLS()
>  
> +#define PAGE_ALIGNED_DATA						\
> +	. = ALIGN(PAGE_SIZE);						\
> +	*(.data.page_aligned)
> +
> +#define PAGE_ALIGNED_BSS						\
> +	. = ALIGN(PAGE_SIZE);						\
> +	*(.bss.page_aligned)
> +
>  #define RO_DATA(align)							\
>  	. = ALIGN((align));						\
>  	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
> diff --git a/include/linux/linkage.h b/include/linux/linkage.h
> index fee9e59..af051fc 100644
> --- a/include/linux/linkage.h
> +++ b/include/linux/linkage.h
> @@ -22,6 +22,15 @@
>  #define __page_aligned_bss	__section(.bss.page_aligned) __aligned(PAGE_SIZE)
>  
>  /*
> + * For assembly routines.
> + *
> + * Note when using these that you must specify the appropriate
> + * alignment directives yourself
> + */
> +#define __PAGE_ALIGNED_DATA	.section ".data.page_aligned", "aw", @progbits
> +#define __PAGE_ALIGNED_BSS	.section ".bss.page_aligned", "aw", @nobits

The above will work on most architectures but fails (silently?) on arm.
arm uses %{progbits,nobits} where all other uses @{nobits,progbits}.

I know we do not use page_aligned in arm assembler code for now,
but if we do then it should work.
It is my understanding that the linker will automatically
assume nobits for section names starting with .bss and likewise
progbits for section names starting with .data - so we can leave them out?


	Sam



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Subject: Re: [PATCH v2 2/6] Add new NOSAVE_DATA linker script macro.
Date: Fri, 1 May 2009 11:21:14 +0200
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To: Tim Abbott <tabbott@MIT.EDU>
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On Thu, Apr 30, 2009 at 03:54:09PM -0400, Tim Abbott wrote:
> This patch is preparation for replacing most ".data.nosave" in the
> kernel with macros, so that the section name can later be changed
> without having to touch a lot of the kernel.
> 
> The long-term goal here is to be able to change the kernel's magic
> section names to those that are compatible with -ffunction-sections
> -fdata-sections.  This requires renaming all magic sections with names
> of the form ".data.foo".
> 
> Signed-off-by: Tim Abbott <tabbott@mit.edu>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> ---
>  include/asm-generic/vmlinux.lds.h |    7 +++++++
>  1 files changed, 7 insertions(+), 0 deletions(-)
> 
> diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
> index 3d88c87..f5ebd2b 100644
> --- a/include/asm-generic/vmlinux.lds.h
> +++ b/include/asm-generic/vmlinux.lds.h
> @@ -124,6 +124,13 @@
>  	. = ALIGN(PAGE_SIZE);						\
>  	*(.bss.page_aligned)
>  
> +#define NOSAVE_DATA							\
> +	. = ALIGN(PAGE_SIZE);						\
> +	__nosave_begin = .;						\
> +	*(.data.nosave)							\
> +	. = ALIGN(PAGE_SIZE);						\
> +	__nosave_end = .;
> +

You need to use:
	VMLINUX_SYMBOL(__nosave_begin) = .;

Otherwise architectures such as m68k wil break as they
add a leading underscore.

See other symbols that is defined inside vmlinux.lds.h

	Sam



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From: Sam Ravnborg <sam@ravnborg.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: Re: [PATCH 6/6] Add support for __read_mostly to linux/cache.h
Date: Fri, 1 May 2009 11:44:07 +0200
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Cc: Anders Kaseorg <andersk@mit.edu>, Waseem Daher <wdaher@mit.edu>,
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To: Tim Abbott <tabbott@MIT.EDU>,
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On Thu, Apr 30, 2009 at 03:32:36PM -0400, Tim Abbott wrote:
> Signed-off-by: Tim Abbott <tabbott@mit.edu>
> ---
>  include/linux/cache.h |    6 ++++++
>  1 files changed, 6 insertions(+), 0 deletions(-)
> 
> diff --git a/include/linux/cache.h b/include/linux/cache.h
> index 97e2488..99d8a6f 100644
> --- a/include/linux/cache.h
> +++ b/include/linux/cache.h
> @@ -13,7 +13,13 @@
>  #endif
>  
>  #ifndef __read_mostly
> +#ifdef CONFIG_HAVE_READ_MOSTLY_DATA
> +#define __read_mostly __attribute__((__section__(".data.read_mostly")))
> +#define __READ_MOSTLY .section ".data.read_mostly", "aw"
> +#else
>  #define __read_mostly
> +#define __READ_MOSTLY
> +#endif /* CONFIG_HAVE_READ_MOSTLY_DATA */
>  #endif

Are there any specific reason why we do not support read_mostly on all
architectures?

read_mostly is about grouping rarely written data together
so what is needed is to introduce this section in the remaining
archtectures.

Christoph - git log says you did the inital implmentation.
Do you agree?

	Sam



From - Thu Nov 08 21:04:08 2018
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Subject: Re: [PATCH v2 1/6] Add new macros for page-aligned data and bss
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To: Sam Ravnborg <sam@ravnborg.org>
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On Fri, 1 May 2009, Sam Ravnborg wrote:

> On Thu, Apr 30, 2009 at 03:54:08PM -0400, Tim Abbott wrote:
> > +#define __PAGE_ALIGNED_DATA	.section ".data.page_aligned", "aw", @progbits
> > +#define __PAGE_ALIGNED_BSS	.section ".bss.page_aligned", "aw", @nobits
> 
> It is my understanding that the linker will automatically
> assume nobits for section names starting with .bss and likewise
> progbits for section names starting with .data - so we can leave them out?

I believe that is correct.

	-Tim Abbott





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Subject: Re: [PATCH v2 0/6] macros for section name cleanup
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To: Tim Abbott <tabbott@MIT.EDU>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1611>

On Thu, Apr 30, 2009 at 03:54:07PM -0400, Tim Abbott wrote:
> (this patch series differs from v1 only in the CC list; some of the
> architecture lists I sent the previous one to are moderated against
> non-members; all replies should go to this version).
> 
> Here are the architecture-independent macro definitions needed for
> to clean up the kernel's section names.  The overall diffstat from
> this section name cleanup project is:
> 
>  96 files changed, 261 insertions(+), 503 deletions(-)
> 
> The decrease results from removing a lot of redundancy in the linker
> scripts.
> 
> The long-term goal here is to add support for building the kernel with
> -ffunction-sections -fdata-sections.  This requires renaming all the
> magic section names in the kernel of the form .text.foo, .data.foo,
> .bss.foo, and .rodata.foo to not have collisions with sections
> generated for code like:
> 
> static int nosave = 0; /* -fdata-sections places in .data.nosave */
> static void head(); /* -ffunction-sections places in .text.head */
> 
> Sam Ravnborg proposed that rather than just renaming all the sections
> outright, we should start by first getting more control over the
> section names used in the kernel so that we can later rename sections
> without touching too many files.  These patch series implement that
> cleanup.  Later, there will be another patch series to actually rename
> the sections.
> 
> I'm hoping we can get just these macro definitions into 2.6.30 so that
> the arch maintainers don't have to grab the macro definitions for
> their trees while reviewing the patches for 2.6.31.
> 
> Shortly, I'm going to send one patch series for each of the
> architectures updating those architectures to use these new macros
> (and otherwise cleaning up section names on those architectures).
> 
> 	-Tim Abbott
> 
> Tim Abbott (6):
>   Add new macros for page-aligned data and bss sections.
>   Add new NOSAVE_DATA linker script macro.
>   Add new CACHELINE_ALIGNED_DATA linker script macro.
>   Add new INIT_TASK_DATA() linker script macro.
>   Add new READ_MOSTLY_DATA(align) linker script macro.

I am about to apply this part of your patches.
I am doing some additional modifications and
will most likely apply them as one patch.

Will post to linux-arch for review when it is ready.

	Sam



From - Thu Nov 08 21:04:08 2018
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Newsgroups: gmane.linux.uclinux.microblaze,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: Re: [PATCH 6/6] Add support for __read_mostly to linux/cache.h
Date: Fri, 1 May 2009 09:52:18 -0400 (EDT)
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References: <1241119956-31453-1-git-send-email-tabbott@mit.edu> <1241119956-31453-2-git-send-email-tabbott@mit.edu> <1241119956-31453-3-git-send-email-tabbott@mit.edu> <1241119956-31453-4-git-send-email-tabbott@mit.edu> <1241119956-31453-5-git-send-email-tabbott@mit.edu>
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Cc: Tim Abbott <tabbott-DPNOqEs/LNQ@public.gmane.org>, Anders Kaseorg <andersk-DPNOqEs/LNQ@public.gmane.org>,
        Waseem Daher <wdaher-DPNOqEs/LNQ@public.gmane.org>,
        Denys Vlasenko <vda.linux-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>,
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        Bryan Wu <cooloney-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Chris Zankel <chris-YvXeqwSYzG2sTnJN9+BGXg@public.gmane.org>,
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        David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
        "David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>, dev-etrax-VrBV9hrLPhE@public.gmane.org,
        Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>,
        Greg Ungerer <gerg-JBU5SbJe1FlAfugRpC6u6w@public.gmane.org>,
        Haavard Skinnemoen <hskinnemoen-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>,
        Heiko Carstens <heiko.carstens-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>,
        Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>, Hirokazu Takata <takata-TMSiXQfHlQjsTix1lMzHGQ@public.gmane.org>,
        "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>, Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
        Jeff Dike <jdike-OPE4K8JWMJJBDgjK7y7TUQ@public.gmane.org>,
        Jesper Nilsso
To: Sam Ravnborg <sam-uyr5N9Q2VtJg9hUCZPvPmw@public.gmane.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1612>

On Fri, 1 May 2009, Sam Ravnborg wrote:

> Are there any specific reason why we do not support read_mostly on all
> architectures?

Not that I know of.

> read_mostly is about grouping rarely written data together
> so what is needed is to introduce this section in the remaining
> archtectures.
>
> Christoph - git log says you did the inital implmentation.
> Do you agree?

Yes.

There is some concern that __read_mostly is needlessly applied to
numerous variables that are not used in hot code paths. This may make
__read_mostly ineffective and actually increase the cache footprint of a
function since global variables are no longer in the same cacheline. If
such a function is called and the caches are cold then two cacheline
fetches have to be done instead of one.



From - Thu Nov 08 21:04:08 2018
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Newsgroups: gmane.linux.uclinux.microblaze,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: Re: [PATCH v2 1/6] Add new macros for page-aligned data and bss sections.
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Cc: Sam Ravnborg <sam-uyr5N9Q2VtJg9hUCZPvPmw@public.gmane.org>,
        Linux kernel mailing list <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
        Anders Kaseorg <andersk-DPNOqEs/LNQ@public.gmane.org>, Waseem Daher <wdaher-DPNOqEs/LNQ@public.gmane.org>,
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        Jeff Arnold <jbarnold-DPNOqEs/LNQ@public.gmane.org>,
        Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>,
        Bryan Wu <cooloney-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Chris Zankel <chris-YvXeqwSYzG2sTnJN9+BGXg@public.gmane.org>,
        Cyrill Gorcunov <gorcunov-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>,
        David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
        "David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>, dev-etrax-VrBV9hrLPhE@public.gmane.org,
        Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>,
        Greg Ungerer <gerg-JBU5SbJe1FlAfugRpC6u6w@public.gmane.org>,
        Haavard Skinnemoen <hskinnemoen-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>,
        Heiko Carstens <heiko.carstens-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>,
        Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>, Hirokazu Takata <takata-TMSiXQfHlQjsTix1lMzHGQ@public.gmane.org>,
        Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Jeff Dike <jdike@addtoit.
To: Tim Abbott <tabbott-DPNOqEs/LNQ@public.gmane.org>
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Tim Abbott wrote:
> On Fri, 1 May 2009, Sam Ravnborg wrote:
> 
>> On Thu, Apr 30, 2009 at 03:54:08PM -0400, Tim Abbott wrote:
>>> +#define __PAGE_ALIGNED_DATA	.section ".data.page_aligned", "aw", @progbits
>>> +#define __PAGE_ALIGNED_BSS	.section ".bss.page_aligned", "aw", @nobits
>> It is my understanding that the linker will automatically
>> assume nobits for section names starting with .bss and likewise
>> progbits for section names starting with .data - so we can leave them out?
> 
> I believe that is correct.
> 

... but that doesn't mean it's the right thing to do.

It's better to be fully explicit when macroizing this kind of stuff.
This is part of why macroizing it is good: it means we end up with *one*
place that determines this stuff, not some magic heuristics in the linker.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.


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Subject: Re: [PATCH] fix ldcw inline assembler
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> > On Thu, Apr 30, 2009 at 11:39:45PM +0200, Helge Deller wrote:
> > > This "fix ldcw assembler" patch below is really an old one now, but sadly it never got applied.
> > > 
> > > I just tried it again. Without this patch I always see login-problems when ssh-ing into
> > > my parisc box. The very first time sshd just drops the connection (Connection closed by remote host).
> > > With this patch I didn't faced this problem again.
> > > 
> > > I'm wondering, if not other userspace problems suddenly go away then as well,
> > > e.g. the uid/gid issues others are seeing:
> > > http://marc.info/?l=linux-parisc&m=121114269417948&w=2
> > > 
> > > Kyle, please apply.
> > > 
> > 
> > gotcha.
> 
> Kyle, can you try and push it into 2.6.30?  It fixes a major security hole.
> 
> I've tried it with 2.6.30-rc4 on my c3750 and agree with Helge that it
> fixes the ssh bug that I had on this machine.

Sorry, I should not have pushed for 2.6.30.  The ssh bug is still present
on my c3750.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: Re: [PATCH v2 1/6] Add new macros for page-aligned data and bss sections.
Date: Fri, 1 May 2009 19:17:17 +0200
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Cc: Tim Abbott <tabbott@MIT.EDU>,
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	Waseem Daher <wdaher@MIT.EDU>,
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To: "H. Peter Anvin" <hpa@zytor.com>
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On Fri, May 01, 2009 at 09:33:13AM -0700, H. Peter Anvin wrote:
> Tim Abbott wrote:
> > On Fri, 1 May 2009, Sam Ravnborg wrote:
> > 
> >> On Thu, Apr 30, 2009 at 03:54:08PM -0400, Tim Abbott wrote:
> >>> +#define __PAGE_ALIGNED_DATA	.section ".data.page_aligned", "aw", @progbits
> >>> +#define __PAGE_ALIGNED_BSS	.section ".bss.page_aligned", "aw", @nobits
> >> It is my understanding that the linker will automatically
> >> assume nobits for section names starting with .bss and likewise
> >> progbits for section names starting with .data - so we can leave them out?
> > 
> > I believe that is correct.
> > 
> 
> ... but that doesn't mean it's the right thing to do.
> 
> It's better to be fully explicit when macroizing this kind of stuff.
> This is part of why macroizing it is good: it means we end up with *one*
> place that determines this stuff, not some magic heuristics in the linker.

Do you know if we can use % in place of @?
I could see that gas supports both - at least in trunk in cvs.

	Sam



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Newsgroups: gmane.linux.uclinux.microblaze,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: Re: [PATCH v2 1/6] Add new macros for page-aligned data and bss sections.
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Sam Ravnborg wrote:
> On Fri, May 01, 2009 at 09:33:13AM -0700, H. Peter Anvin wrote:
>> Tim Abbott wrote:
>>> On Fri, 1 May 2009, Sam Ravnborg wrote:
>>>
>>>> On Thu, Apr 30, 2009 at 03:54:08PM -0400, Tim Abbott wrote:
>>>>> +#define __PAGE_ALIGNED_DATA	.section ".data.page_aligned", "aw", @progbits
>>>>> +#define __PAGE_ALIGNED_BSS	.section ".bss.page_aligned", "aw", @nobits
>>>> It is my understanding that the linker will automatically
>>>> assume nobits for section names starting with .bss and likewise
>>>> progbits for section names starting with .data - so we can leave them out?
>>> I believe that is correct.
>>>
>> ... but that doesn't mean it's the right thing to do.
>>
>> It's better to be fully explicit when macroizing this kind of stuff.
>> This is part of why macroizing it is good: it means we end up with *one*
>> place that determines this stuff, not some magic heuristics in the linker.
> 
> Do you know if we can use % in place of @?
> I could see that gas supports both - at least in trunk in cvs.
> 

I think it might depend on the architecture(!)... but it would
definitely have to be an issue with testing a bunch of different versions.

What's wrong with @?

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.


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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: Re: [PATCH v2 1/6] Add new macros for page-aligned data and bss sections.
Date: Fri, 1 May 2009 19:44:57 +0200
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Cc: Tim Abbott <tabbott@MIT.EDU>,
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To: "H. Peter Anvin" <hpa@zytor.com>
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On Fri, May 01, 2009 at 10:18:20AM -0700, H. Peter Anvin wrote:
> Sam Ravnborg wrote:
> > On Fri, May 01, 2009 at 09:33:13AM -0700, H. Peter Anvin wrote:
> >> Tim Abbott wrote:
> >>> On Fri, 1 May 2009, Sam Ravnborg wrote:
> >>>
> >>>> On Thu, Apr 30, 2009 at 03:54:08PM -0400, Tim Abbott wrote:
> >>>>> +#define __PAGE_ALIGNED_DATA	.section ".data.page_aligned", "aw", @progbits
> >>>>> +#define __PAGE_ALIGNED_BSS	.section ".bss.page_aligned", "aw", @nobits
> >>>> It is my understanding that the linker will automatically
> >>>> assume nobits for section names starting with .bss and likewise
> >>>> progbits for section names starting with .data - so we can leave them out?
> >>> I believe that is correct.
> >>>
> >> ... but that doesn't mean it's the right thing to do.
> >>
> >> It's better to be fully explicit when macroizing this kind of stuff.
> >> This is part of why macroizing it is good: it means we end up with *one*
> >> place that determines this stuff, not some magic heuristics in the linker.
> > 
> > Do you know if we can use % in place of @?
> > I could see that gas supports both - at least in trunk in cvs.
> > 
> 
> I think it might depend on the architecture(!)... but it would
> definitely have to be an issue with testing a bunch of different versions.
> 
> What's wrong with @?
arm does not support it :-(
I recall it denote a comment in arm assembler.

I could do some magic to detect the ARM case but I'm reluctant to do so.
I could also ignore the arm issue for now as it is not used by arm,
but that strikes me as the wrong approach.


	Sam



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Newsgroups: gmane.linux.uclinux.microblaze,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: Re: [PATCH v2 1/6] Add new macros for page-aligned data and bss sections.
Date: Fri, 01 May 2009 10:47:48 -0700
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To: Sam Ravnborg <sam-uyr5N9Q2VtJg9hUCZPvPmw@public.gmane.org>
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Sam Ravnborg wrote:
>>
>> What's wrong with @?
> arm does not support it :-(
> I recall it denote a comment in arm assembler.
> 
> I could do some magic to detect the ARM case but I'm reluctant to do so.
> I could also ignore the arm issue for now as it is not used by arm,
> but that strikes me as the wrong approach.
> 

If we really have to use different tokens, I would say:

#ifdef __ARM__
# define _PROGBITS %progbits	/* or whatever */
# define _NOBITS   %nobits
#else
# define _PROGBITS @progbits
# define _NOBITS   @nobits
#endif

Otherwise we probably need to ask the binutils people...

	-hpa

-- 
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I work for Intel.  I don't speak on their behalf.


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Subject: Re: [PATCH] fix ldcw inline assembler
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On Thu, Apr 30, 2009 at 5:39 PM, Helge Deller <deller@gmx.de> wrote:
> diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/a=
sm/system.h
> index ee80c92..d91357b 100644
> --- a/arch/parisc/include/asm/system.h
> +++ b/arch/parisc/include/asm/system.h
> @@ -168,8 +168,8 @@ static inline void set_eiem(unsigned long val)
> =A0/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.=
 =A0*/
> =A0#define __ldcw(a) ({ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
> =A0 =A0 =A0 =A0unsigned __ret; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
> - =A0 =A0 =A0 __asm__ __volatile__(__LDCW " 0(%1),%0" =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 \
> - =A0 =A0 =A0 =A0 =A0 =A0 =A0 : "=3Dr" (__ret) : "r" (a)); =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
> + =A0 =A0 =A0 __asm__ __volatile__(__LDCW " 0(%2),%0" =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 \
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 : "=3Dr" (__ret), "+m" (*(a)) : "r" (a)=
); =A0 =A0 =A0 =A0 \
> =A0 =A0 =A0 =A0__ret; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
> =A0})

Historical note...

We clobber all of memory in userspace, like this:
~~~
#define __ldcw(a) \
({                                                                     =
 \
  unsigned int __ret;                                                  =
 \
  __asm__ __volatile__("ldcw 0(%1),%0"                                 =
 \
                       : "=3Dr" (__ret) : "r" (a) : "memory");         =
   \
  __ret;                                                               =
 \
})
~~~
I wonder if I should change that to match the kernel?

This is currently used in the Linuxthreads->NPTL compat code, and in
the old Linuxthreads code.

Cheers,
Carlos.
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Subject: Re: [PATCH] fix ldcw inline assembler
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On Fri, 01 May 2009, Carlos O'Donell wrote:

> Historical note...
> 
> We clobber all of memory in userspace, like this:
> ~~~
> #define __ldcw(a) \
> ({                                                                      \
>   unsigned int __ret;                                                   \
>   __asm__ __volatile__("ldcw 0(%1),%0"                                  \
>                        : "=r" (__ret) : "r" (a) : "memory");            \
>   __ret;                                                                \
> })
> ~~~
> I wonder if I should change that to match the kernel?

The above is perfectly safe.  I believe the kernel provides a memory
barrier when necessary.  There's a discussion somewhere in the mail
archives.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Fri, May 01, 2009 at 05:37:18PM -0400, John David Anglin wrote:
> On Fri, 01 May 2009, Carlos O'Donell wrote:
> 
> > Historical note...
> > 
> > We clobber all of memory in userspace, like this:
> > ~~~
> > #define __ldcw(a) \
> > ({                                                                      \
> >   unsigned int __ret;                                                   \
> >   __asm__ __volatile__("ldcw 0(%1),%0"                                  \
> >                        : "=r" (__ret) : "r" (a) : "memory");            \
> >   __ret;                                                                \
> > })
> > ~~~
> > I wonder if I should change that to match the kernel?
> 
> The above is perfectly safe.  I believe the kernel provides a memory
> barrier when necessary.  There's a discussion somewhere in the mail
> archives.
> 

I, er, don't think we do, not for the spinlock primitives at least, as
far as I can tell...

regards, Kyle
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From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: Re: [microblaze-uclinux] Re: [PATCH 6/6] Add support for
	__read_mostly to linux/cache.h
Date: Fri, 1 May 2009 23:47:13 +0200
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Cc: Sam Ravnborg <sam@ravnborg.org>, Tim Abbott <tabbott@MIT.EDU>,
	Anders Kaseorg <andersk@MIT.EDU>,
	Waseem Daher <wdaher@MIT.EDU>,
	Denys Vlasenko <vda.linux@googlemail.com>,
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	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Bryan Wu <cooloney@kernel.org>,
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	Cyrill Gorcunov <gorcunov@openvz.org>,
	David Howells <dhowells@redhat.com>,
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To: Christoph Lameter <cl@linux.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/1622>

On Fri, May 01, 2009 at 09:52:18AM -0400, Christoph Lameter wrote:
> On Fri, 1 May 2009, Sam Ravnborg wrote:
> 
> > Are there any specific reason why we do not support read_mostly on all
> > architectures?
> 
> Not that I know of.
> 
> > read_mostly is about grouping rarely written data together
> > so what is needed is to introduce this section in the remaining
> > archtectures.
> >
> > Christoph - git log says you did the inital implmentation.
> > Do you agree?
> 
> Yes.
> 
> There is some concern that __read_mostly is needlessly applied to
> numerous variables that are not used in hot code paths. This may make
> __read_mostly ineffective and actually increase the cache footprint of a
> function since global variables are no longer in the same cacheline. If
> such a function is called and the caches are cold then two cacheline
> fetches have to be done instead of one.

FWIW I think that's a valid concern. Also, I think one can question the
value of __read_mostly for write-through caches, given the mentioned
concern it probably makes things worse for those. IMO there should be
a way to turn it off for arch's that know it's no good for them.

Cheers



From - Thu Nov 08 21:04:09 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] fix ldcw inline assembler
Date: Fri, 01 May 2009 22:03:12 +0000
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Cc: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
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	Helge Deller <deller@gmx.de>,
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To: Kyle McMartin <kyle@mcmartin.ca>
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On Fri, 2009-05-01 at 17:46 -0400, Kyle McMartin wrote:
> On Fri, May 01, 2009 at 05:37:18PM -0400, John David Anglin wrote:
> > On Fri, 01 May 2009, Carlos O'Donell wrote:
> > 
> > > Historical note...
> > > 
> > > We clobber all of memory in userspace, like this:
> > > ~~~
> > > #define __ldcw(a) \
> > > ({                                                                      \
> > >   unsigned int __ret;                                                   \
> > >   __asm__ __volatile__("ldcw 0(%1),%0"                                  \
> > >                        : "=r" (__ret) : "r" (a) : "memory");            \
> > >   __ret;                                                                \
> > > })
> > > ~~~
> > > I wonder if I should change that to match the kernel?
> > 
> > The above is perfectly safe.  I believe the kernel provides a memory
> > barrier when necessary.  There's a discussion somewhere in the mail
> > archives.
> > 
> 
> I, er, don't think we do, not for the spinlock primitives at least, as
> far as I can tell...

Yes we do ... look in asm/spinlock.h

it's all the mb(); statements that are scattered through our _raw_spin_
ops

The original problem was that the spinlocks were compile barrier leaky
and caused infrequent but hard to debug issues on smp.  The barriers are
likely overkill (since we have two in each) but at least they prevent
problems.

James


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From - Thu Nov 08 21:04:09 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] fix ldcw inline assembler
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To: kyle@mcmartin.ca (Kyle McMartin)
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> On Fri, May 01, 2009 at 05:37:18PM -0400, John David Anglin wrote:
> > On Fri, 01 May 2009, Carlos O'Donell wrote:
> > 
> > > Historical note...
> > > 
> > > We clobber all of memory in userspace, like this:
> > > ~~~
> > > #define __ldcw(a) \
> > > ({                                                                      \
> > >   unsigned int __ret;                                                   \
> > >   __asm__ __volatile__("ldcw 0(%1),%0"                                  \
> > >                        : "=r" (__ret) : "r" (a) : "memory");            \
> > >   __ret;                                                                \
> > > })
> > > ~~~
> > > I wonder if I should change that to match the kernel?
> > 
> > The above is perfectly safe.  I believe the kernel provides a memory
> > barrier when necessary.  There's a discussion somewhere in the mail
> > archives.
> > 
> 
> I, er, don't think we do, not for the spinlock primitives at least, as
> far as I can tell...

Ok, I'm going to see if the "memory" clobber improves life.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:10 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH] fix ldcw inline assembler
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Fri, May 01, 2009 at 10:03:12PM +0000, James Bottomley wrote:
> On Fri, 2009-05-01 at 17:46 -0400, Kyle McMartin wrote:
> > On Fri, May 01, 2009 at 05:37:18PM -0400, John David Anglin wrote:
> > > On Fri, 01 May 2009, Carlos O'Donell wrote:
> > > 
> > > > Historical note...
> > > > 
> > > > We clobber all of memory in userspace, like this:
> > > > ~~~
> > > > #define __ldcw(a) \
> > > > ({                                                                      \
> > > >   unsigned int __ret;                                                   \
> > > >   __asm__ __volatile__("ldcw 0(%1),%0"                                  \
> > > >                        : "=r" (__ret) : "r" (a) : "memory");            \
> > > >   __ret;                                                                \
> > > > })
> > > > ~~~
> > > > I wonder if I should change that to match the kernel?
> > > 
> > > The above is perfectly safe.  I believe the kernel provides a memory
> > > barrier when necessary.  There's a discussion somewhere in the mail
> > > archives.
> > > 
> > 
> > I, er, don't think we do, not for the spinlock primitives at least, as
> > far as I can tell...
> 
> Yes we do ... look in asm/spinlock.h
> 
> it's all the mb(); statements that are scattered through our _raw_spin_
> ops
> 
> The original problem was that the spinlocks were compile barrier leaky
> and caused infrequent but hard to debug issues on smp.  The barriers are
> likely overkill (since we have two in each) but at least they prevent
> problems.
> 

Yeah, I was looking at the lack of a barrier between ldcw and the test
of *a == 0. I guess this would be fixed by Helge's patch.

--Kyle
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH] fix ldcw inline assembler
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To: Kyle McMartin <kyle@mcmartin.ca>
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On Fri, 2009-05-01 at 18:25 -0400, Kyle McMartin wrote:
> On Fri, May 01, 2009 at 10:03:12PM +0000, James Bottomley wrote:
> > On Fri, 2009-05-01 at 17:46 -0400, Kyle McMartin wrote:
> > > On Fri, May 01, 2009 at 05:37:18PM -0400, John David Anglin wrote:
> > > > On Fri, 01 May 2009, Carlos O'Donell wrote:
> > > > 
> > > > > Historical note...
> > > > > 
> > > > > We clobber all of memory in userspace, like this:
> > > > > ~~~
> > > > > #define __ldcw(a) \
> > > > > ({                                                                      \
> > > > >   unsigned int __ret;                                                   \
> > > > >   __asm__ __volatile__("ldcw 0(%1),%0"                                  \
> > > > >                        : "=r" (__ret) : "r" (a) : "memory");            \
> > > > >   __ret;                                                                \
> > > > > })
> > > > > ~~~
> > > > > I wonder if I should change that to match the kernel?
> > > > 
> > > > The above is perfectly safe.  I believe the kernel provides a memory
> > > > barrier when necessary.  There's a discussion somewhere in the mail
> > > > archives.
> > > > 
> > > 
> > > I, er, don't think we do, not for the spinlock primitives at least, as
> > > far as I can tell...
> > 
> > Yes we do ... look in asm/spinlock.h
> > 
> > it's all the mb(); statements that are scattered through our _raw_spin_
> > ops
> > 
> > The original problem was that the spinlocks were compile barrier leaky
> > and caused infrequent but hard to debug issues on smp.  The barriers are
> > likely overkill (since we have two in each) but at least they prevent
> > problems.
> > 
> 
> Yeah, I was looking at the lack of a barrier between ldcw and the test
> of *a == 0. I guess this would be fixed by Helge's patch.

OK, now I'm confused.  Barriers are used to inform the compiler about
interlocks it isn't aware of (like when an asm changes a variable).  The
ldcw and the *a both mention a which is sufficient an interlock for the
compiler to get it right without any barrier.

Added to which, *a is declared volatile, which is enough of a cautionary
note to make the compiler behave in a very straightforward fashion.

James


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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] fix ldcw inline assembler
Date: Fri, 1 May 2009 18:39:40 -0400
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On Fri, May 01, 2009 at 05:36:14PM -0500, James Bottomley wrote:
> 
> OK, now I'm confused.  Barriers are used to inform the compiler about
> interlocks it isn't aware of (like when an asm changes a variable).  The
> ldcw and the *a both mention a which is sufficient an interlock for the
> compiler to get it right without any barrier.
> 
> Added to which, *a is declared volatile, which is enough of a cautionary
> note to make the compiler behave in a very straightforward fashion.
> 

I guess... I don't understand the gcc clobber semantics on asm()
anymore, I'm just thinking of that stupid bug with ip_fast_csum we saw
on parisc a few years ago...

Don't mind me.

--Kyle
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From - Thu Nov 08 21:04:10 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] fix ldcw inline assembler
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> I guess... I don't understand the gcc clobber semantics on asm()
> anymore, I'm just thinking of that stupid bug with ip_fast_csum we saw
> on parisc a few years ago...

These are in fact subtle and complex.  There were two or three bugs
that appeared in the transition to 4.4.0 as a result of the change
to the new register allocator.  In paricular, using clobbers of hard
registers in call patterns caused a number of problems.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:10 2018
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Subject: Re: [PATCH v2 1/6] Add new macros for page-aligned data and bss sections.
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Cc: Sam Ravnborg <sam@ravnborg.org>, linux-mips@linux-mips.org,
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To: "H. Peter Anvin" <hpa@zytor.com>
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"H. Peter Anvin" <hpa@zytor.com> writes:

> Sam Ravnborg wrote:
>>>
>>> What's wrong with @?
>> arm does not support it :-(
>> I recall it denote a comment in arm assembler.
>> 
>> I could do some magic to detect the ARM case but I'm reluctant to do so.
>> I could also ignore the arm issue for now as it is not used by arm,
>> but that strikes me as the wrong approach.
>> 
>
> If we really have to use different tokens, I would say:
>
> #ifdef __ARM__
> # define _PROGBITS %progbits	/* or whatever */
> # define _NOBITS   %nobits
> #else
> # define _PROGBITS @progbits
> # define _NOBITS   @nobits
> #endif

GAS has always supported both '@' and '%', so '%' can be used
everywhere.

Andreas.

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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Missing syscalls in 2.6.30-rc4
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The following syscalls aren't wired up:

<stdin>:1421:2: warning: #warning syscall preadv not implemented
<stdin>:1425:2: warning: #warning syscall pwritev not implemented

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 3/5] parisc: use new macros for .data.init_task.
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Tim Abbott wrote:
> .data.init_task should not need a separate output section; this change
> moves it into the .data section.
> 
> Signed-off-by: Tim Abbott <tabbott@mit.edu>
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: Helge Deller <deller@gmx.de>
> Cc: linux-parisc@vger.kernel.org


I think this patch is wrong, although it is theoretically correct.

IIRC, gcc on hppa is not able to provide an alignment >= 8k, which is
why we have done the 16k alignment inside the linker script.
So, I think this change will prevent the parisc kernel to boot up.
Needs testing.

Helge

> ---
>  arch/parisc/kernel/init_task.c   |    2 +-
>  arch/parisc/kernel/vmlinux.lds.S |   10 ++--------
>  2 files changed, 3 insertions(+), 9 deletions(-)
> 
> diff --git a/arch/parisc/kernel/init_task.c b/arch/parisc/kernel/init_task.c
> index 1e25a45..8ee17ea 100644
> --- a/arch/parisc/kernel/init_task.c
> +++ b/arch/parisc/kernel/init_task.c
> @@ -48,7 +48,7 @@ EXPORT_SYMBOL(init_mm);
>   * "init_task" linker map entry..
>   */
>  union thread_union init_thread_union
> -	__attribute__((aligned(128))) __attribute__((__section__(".data.init_task"))) =
> +	__attribute__((aligned(128))) __init_task_data =
>  		{ INIT_THREAD_INFO(init_task) };
>  
>  #if PT_NLEVELS == 3
> diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
> index b5936c9..c8a528d 100644
> --- a/arch/parisc/kernel/vmlinux.lds.S
> +++ b/arch/parisc/kernel/vmlinux.lds.S
> @@ -103,6 +103,8 @@ SECTIONS
>  	. = ALIGN(L1_CACHE_BYTES);
>  	/* Data */
>  	.data : {
> +		/* assembler code expects init_task to be 16k aligned */
> +		INIT_TASK_DATA(16384)
>  		NOSAVE_DATA
>  		CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
>  		DATA_DATA
> @@ -133,14 +135,6 @@ SECTIONS
>  	}
>  	__bss_stop = .;
>  
> -
> -	/* assembler code expects init_task to be 16k aligned */
> -	. = ALIGN(16384);
> -	/* init_task */
> -	.data.init_task : {
> -		*(.data.init_task)
> -	}
> -
>  #ifdef CONFIG_64BIT
>  	. = ALIGN(16);
>  	/* Linkage tables */

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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 3/5] parisc: use new macros for .data.init_task.
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> IIRC, gcc on hppa is not able to provide an alignment >= 8k, which is
> why we have done the 16k alignment inside the linker script.

How does this arise?  We have the following define for MAX_OFILE_ALIGNMENT
in elfos.h:

#define MAX_OFILE_ALIGNMENT (((unsigned int) 1 << 28) * 8)

If you are correct, MAX_OFILE_ALIGNMENT should be changed.

Dave
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH 3/5] parisc: use new macros for .data.init_task.
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On Sat, May 02, 2009 at 07:13:37AM +0200, Helge Deller wrote:
> I think this patch is wrong, although it is theoretically correct.
> 
> IIRC, gcc on hppa is not able to provide an alignment >= 8k, which is
> why we have done the 16k alignment inside the linker script.
> So, I think this change will prevent the parisc kernel to boot up.
> Needs testing.
> 

I think you're confusing this with the 8-byte maximum alignment from
kmalloc and on-stack that prevents us from just using a 16-byte aligned
word as a lock on pa1.1?

The patch I trimmed from this mail looks correct to me.

regards, Kyle
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On Fri, May 01, 2009 at 09:28:19PM -0400, John David Anglin wrote:
> The following syscalls aren't wired up:
> 
> <stdin>:1421:2: warning: #warning syscall preadv not implemented
> <stdin>:1425:2: warning: #warning syscall pwritev not implemented
> 

Yeah, I committed this to my tracehook branch by mistake, sorry. I'll
sort out what's in git this weekend, as I've been busier than expected
with RHT stuff this week.

--Kyle
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To: Tim Abbott <tabbott@MIT.EDU>
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On Thu, Apr 30, 2009 at 07:55:14PM -0400, Tim Abbott wrote:
> This patch series cleans up the section names on the parisc
> architecture.  It requires the architecture-independent macro
> definitions from this patch series:
> 
> <http://www.spinics.net/lists/mips/msg33499.html>
> 
> The long-term goal here is to add support for building the kernel with
> -ffunction-sections -fdata-sections.  This requires renaming all the
> magic section names in the kernel of the form .text.foo, .data.foo,
> .bss.foo, and .rodata.foo to not have collisions with sections
> generated for code like:
> 
> static int nosave = 0; /* -fdata-sections places in .data.nosave */
> static void head(); /* -ffunction-sections places in .text.head */
> 
> Note that these patches have not been boot-tested (aside from testing
> the analogous changes on x86), since I don't have access to the
> appropriate hardware.
> 
> 	-Tim Abbott
> 
> 
> Tim Abbott (5):
>   parisc: use NOSAVE_DATA macro for .data.nosave section.
>   parisc: use new macro for .data.cacheline_aligned section.
>   parisc: use new macros for .data.init_task.
>   parisc: use new macro for .data.read_mostly section.
>   parisc: convert to new generic read_mostly support.
> 

Not sure what the easiest way to merge these will be... I'll apply them
to a section-cleanup branch in the parisc git tree until the
architecture independent portions are upstream.

regards, Kyle
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From - Thu Nov 08 21:04:10 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 3/5] parisc: use new macros for .data.init_task.
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To: Kyle McMartin <kyle@mcmartin.ca>
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Kyle McMartin wrote:
> On Sat, May 02, 2009 at 07:13:37AM +0200, Helge Deller wrote:
>> I think this patch is wrong, although it is theoretically correct.
>>
>> IIRC, gcc on hppa is not able to provide an alignment >= 8k, which is
>> why we have done the 16k alignment inside the linker script.
>> So, I think this change will prevent the parisc kernel to boot up.
>> Needs testing.
>>
> 
> I think you're confusing this with the 8-byte maximum alignment from
> kmalloc and on-stack that prevents us from just using a 16-byte aligned
> word as a lock on pa1.1?

No, I was not confusing it with the 8byte-alignment.

I really meant that a > 8k alignment was not possible.
I tried exactly the same stuff once and failed.
I think the restriction came from hpux compatibility or some old gas...

Anyway, I just tried some assembly and it seems to work.

> The patch I trimmed from this mail looks correct to me.

If you apply it and it boots OK for you, I'm fine.

Helge
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From: Sam Ravnborg <sam@ravnborg.org>
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Subject: Re: [PATCH 0/5] section name cleanup for parisc
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On Sat, May 02, 2009 at 10:19:53AM -0400, Kyle McMartin wrote:
> On Thu, Apr 30, 2009 at 07:55:14PM -0400, Tim Abbott wrote:
> > This patch series cleans up the section names on the parisc
> > architecture.  It requires the architecture-independent macro
> > definitions from this patch series:
> > 
> > <http://www.spinics.net/lists/mips/msg33499.html>
> > 
> > The long-term goal here is to add support for building the kernel with
> > -ffunction-sections -fdata-sections.  This requires renaming all the
> > magic section names in the kernel of the form .text.foo, .data.foo,
> > .bss.foo, and .rodata.foo to not have collisions with sections
> > generated for code like:
> > 
> > static int nosave = 0; /* -fdata-sections places in .data.nosave */
> > static void head(); /* -ffunction-sections places in .text.head */
> > 
> > Note that these patches have not been boot-tested (aside from testing
> > the analogous changes on x86), since I don't have access to the
> > appropriate hardware.
> > 
> > 	-Tim Abbott
> > 
> > 
> > Tim Abbott (5):
> >   parisc: use NOSAVE_DATA macro for .data.nosave section.
> >   parisc: use new macro for .data.cacheline_aligned section.
> >   parisc: use new macros for .data.init_task.
> >   parisc: use new macro for .data.read_mostly section.
> >   parisc: convert to new generic read_mostly support.
> > 
> 
> Not sure what the easiest way to merge these will be... I'll apply them
> to a section-cleanup branch in the parisc git tree until the
> architecture independent portions are upstream.

I expect the parisc stuff to be redone. I'm working at the arch
independent stuff atm and will post a new patch later this weekend.
That will make the current patch obsolete.

	Sam
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From - Thu Nov 08 21:04:11 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 3/5] parisc: use new macros for .data.init_task.
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To: deller@gmx.de (Helge Deller)
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> I really meant that a > 8k alignment was not possible.
> I tried exactly the same stuff once and failed.
> I think the restriction came from hpux compatibility or some old gas...

The maximum alignment on hpux is 4k bytes.  This was implemented in
2004 in the PA backend for hpux.  Prior to that, the default for
MAX_OFILE_ALIGNMENT (BIGGEST_ALIGNMENT) was in effect for all PA
targets.  It looks like Carlos added the define to elfos.h in November
2006.  So unless this was back ported, 4.2.0 would be the first gcc
release to support large alignments on linux.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:11 2018
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Just faced this in syslog while running "shutdown -r":
...
Stopping system log daemon....                                   
Asking all remaining processes to terminate...BUG: soft lockup - CPU#0 stuck for 61s! [console-kit-dae:2647]
Modules linked in: (none)                                                                                          

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000111100001111 Not tainted
r00-03  00040f0f 1068ed58 1013aaf0 8e170440      
r04-07  00000000 106f19d0 106f1a24 8e1703dc      
r08-11  00000050 1068e9d0 00000007 1068e9d0
r12-15  0000000f 40361558 00001000 40049000
r16-19  8ee965a8 00000010 0003ecc0 00000001
r20-23  ffffffff 8ee96288 11147acf 106e19cc
r24-27  ffffffff 105df7a8 1068ed8c 1067b1d0
r28-31  0000000e 106e11d0 8e170500 105bcd4e
sr00-03  00000000 00000000 00000000 00000029
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1013aaf4 1013aaf8
 IIR: 486400d0    ISR: 8e1705c8  IOR: 106f19dc
 CPU:        0   CR30: 8e170000 CR31: d22344f0
 ORIG_R28: 107019d0
 IAOQ[0]: vprintk+0x144/0x2d0
 IAOQ[1]: vprintk+0x148/0x2d0
 RP(r2): vprintk+0x140/0x2d0
Backtrace:
 [<1013a904>] printk+0x28/0x38
 [<10111758>] print_fr+0x110/0x144
 [<10111848>] show_regs+0xbc/0x224
 [<10110000>] do_page_fault+0x1ac/0x26c
 [<10112220>] handle_interruption+0x74/0x5e0
 [<10116078>] intr_check_sig+0x0/0x34

Kernel panic - not syncing: softlockup: hung tasks
Backtrace:
 [<10111b5c>] show_stack+0x18/0x28
 [<101119cc>] dump_stack+0x1c/0x2c
 [<101398d8>] panic+0x7c/0x1c4
 [<1016c878>] softlockup_tick+0x194/0x198
 [<10146230>] run_local_timers+0x28/0x38
 [<10145f84>] update_process_times+0x38/0x88
 [<10112838>] timer_interrupt+0xac/0x180
 [<1016d28c>] handle_IRQ_event+0x70/0x150
 [<1016d3d8>] __do_IRQ+0x6c/0x1cc
 [<10112efc>] do_cpu_irq_mask+0x9c/0xd0
 [<10116068>] intr_return+0x0/0x4
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Subject: Kernel Panic during init with 2.6.29-gb609308 (fresh clone of git 
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Fresh clone of kyle's parisc-2.6 master branch from kernel.org.

Not much to say, it went AWOL during init while starting snmpd...

I dunno if that's worth debugging tho, seems like everybody is using
2.6.30 already (I must have misunderstood how to use git again :P)

HTH

Linux version 2.6.29-gb609308 (varenet@mkhppa3) (gcc version 4.2.4
(Debian 4.2.4-6)) #1 SMP Sat May 2 20:39:12 CEST 2009



Starting Name Service Cache Daemon: nscd.
Starting internet superserver: inetd.
Starting network management services:Backtrace:


Kernel Fault: Code=15 regs=000000012eb44a50 (Addr=000000002e924ca0)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  000000ff0804ff0f 0000000040708120 000000006fc00000 000000012eb44838
r04-07  00000000ffffe000 0000000000000010 000000006bc23fd9 0000000000000014
r08-11  00000000000001a0 0000000073c00008 0000000000000010 000000004064f478
r12-15  0000000000000000 0000000000000000 0000000000000000 0000000000000001
r16-19  000000012f8ba100 0000000000000000 00000000fb5fd5d4 0000000040126388
r20-23  ffffffffffffff30 00000000401203c0 00000000ffffff30 0000000000000000
r24-27  00000000405a9364 0000000037de0000 0000000040120993 00000000406fa120
r28-31  000000002e924ca0 00000000401202d0 000000012eb44a50 000000002e924cb0
sr00-03  0000000000259800 0000000000000000 0000000000000000 0000000000259800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004012fe4c 000000004012fe50

Press Q/q to quit, Enter to continue:

 IIR: 0f8010df    ISR: 0000000000000000  IOR: 000000002e924ca0
 CPU:        0   CR30: 000000012eb44000 CR31: 000000004065c000
 ORIG_R28: 000000004019df7c
 IAOQ[0]: unwind_once+0x354/0x490
 IAOQ[1]: unwind_once+0x358/0x490
 RP(r2): 0x6fc00000
Backtrace:

Kernel panic - not syncing: Kernel Fault
Backtrace:



-- 
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http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:04:11 2018
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Subject: Re: Kernel Panic during init with 2.6.29-gb609308 (fresh clone of git 
	master)
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=46or the sake of making this half less useless, it happened with a
64bit kernel (A500). ;^P

On Sat, May 2, 2009 at 9:04 PM, Thibaut VARENE <T-Bone@parisc-linux.org=
> wrote:
> Fresh clone of kyle's parisc-2.6 master branch from kernel.org.
>
> Not much to say, it went AWOL during init while starting snmpd...
>
> I dunno if that's worth debugging tho, seems like everybody is using
> 2.6.30 already (I must have misunderstood how to use git again :P)
>
> HTH
>
> Linux version 2.6.29-gb609308 (varenet@mkhppa3) (gcc version 4.2.4
> (Debian 4.2.4-6)) #1 SMP Sat May 2 20:39:12 CEST 2009
>
>
>
> Starting Name Service Cache Daemon: nscd.
> Starting internet superserver: inetd.
> Starting network management services:Backtrace:
>
>
> Kernel Fault: Code=3D15 regs=3D000000012eb44a50 (Addr=3D000000002e924=
ca0)
>
> =C2=A0 =C2=A0 YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001001111111100001111 Not tainted
> r00-03 =C2=A0000000ff0804ff0f 0000000040708120 000000006fc00000 00000=
0012eb44838
> r04-07 =C2=A000000000ffffe000 0000000000000010 000000006bc23fd9 00000=
00000000014
> r08-11 =C2=A000000000000001a0 0000000073c00008 0000000000000010 00000=
0004064f478
> r12-15 =C2=A00000000000000000 0000000000000000 0000000000000000 00000=
00000000001
> r16-19 =C2=A0000000012f8ba100 0000000000000000 00000000fb5fd5d4 00000=
00040126388
> r20-23 =C2=A0ffffffffffffff30 00000000401203c0 00000000ffffff30 00000=
00000000000
> r24-27 =C2=A000000000405a9364 0000000037de0000 0000000040120993 00000=
000406fa120
> r28-31 =C2=A0000000002e924ca0 00000000401202d0 000000012eb44a50 00000=
0002e924cb0
> sr00-03 =C2=A00000000000259800 0000000000000000 0000000000000000 0000=
000000259800
> sr04-07 =C2=A00000000000000000 0000000000000000 0000000000000000 0000=
000000000000
>
> IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004012fe4c 000000=
004012fe50
>
> Press Q/q to quit, Enter to continue:
>
> =C2=A0IIR: 0f8010df =C2=A0 =C2=A0ISR: 0000000000000000 =C2=A0IOR: 000=
000002e924ca0
> =C2=A0CPU: =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=A0 CR30: 000000012eb44000=
 CR31: 000000004065c000
> =C2=A0ORIG_R28: 000000004019df7c
> =C2=A0IAOQ[0]: unwind_once+0x354/0x490
> =C2=A0IAOQ[1]: unwind_once+0x358/0x490
> =C2=A0RP(r2): 0x6fc00000
> Backtrace:
>
> Kernel panic - not syncing: Kernel Fault
> Backtrace:
>
>
>
> --
> Thibaut VARENE
> http://www.parisc-linux.org/~varenet/
>



--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:04:11 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: Kernel Panic during init with 2.6.29-gb609308 (fresh clone of git
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To: T-Bone@parisc-linux.org (Thibaut VARENE)
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You might try building with the 4.1 branch.  I have had more luck
with it.

> For the sake of making this half less useless, it happened with a
> 64bit kernel (A500). ;^P
> 
> On Sat, May 2, 2009 at 9:04 PM, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> > Fresh clone of kyle's parisc-2.6 master branch from kernel.org.
> >
> > Not much to say, it went AWOL during init while starting snmpd...
> >
> > I dunno if that's worth debugging tho, seems like everybody is using
> > 2.6.30 already (I must have misunderstood how to use git again :P)
> >
> > HTH
> >
> > Linux version 2.6.29-gb609308 (varenet@mkhppa3) (gcc version 4.2.4
> > (Debian 4.2.4-6)) #1 SMP Sat May 2 20:39:12 CEST 2009

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:11 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 3/5] parisc: use new macros for .data.init_task.
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Cc: Tim Abbott <tabbott@MIT.EDU>,
	Linux kernel mailing list <linux-kernel@vger.kernel.org>,
	Anders Kaseorg <andersk@mit.edu>,
	Waseem Daher <wdaher@mit.edu>,
	Denys Vlasenko <vda.linux@googlemail.com>,
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	Kyle McMartin <kyle@mcmartin.ca>, linux-parisc@vger.kernel.org
To: Helge Deller <deller@gmx.de>
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On Sat, May 02, 2009 at 07:13:37AM +0200, Helge Deller wrote:
> Tim Abbott wrote:
> > .data.init_task should not need a separate output section; this change
> > moves it into the .data section.
> > 
> > Signed-off-by: Tim Abbott <tabbott@mit.edu>
> > Cc: Kyle McMartin <kyle@mcmartin.ca>
> > Cc: Helge Deller <deller@gmx.de>
> > Cc: linux-parisc@vger.kernel.org
> 
> 
> I think this patch is wrong, although it is theoretically correct.
> 
> IIRC, gcc on hppa is not able to provide an alignment >= 8k, which is
> why we have done the 16k alignment inside the linker script.
> So, I think this change will prevent the parisc kernel to boot up.
> Needs testing.

The patch does not do much...

> 
> Helge
> 
> > ---
> >  arch/parisc/kernel/init_task.c   |    2 +-
> >  arch/parisc/kernel/vmlinux.lds.S |   10 ++--------
> >  2 files changed, 3 insertions(+), 9 deletions(-)
> > 
> > diff --git a/arch/parisc/kernel/init_task.c b/arch/parisc/kernel/init_task.c
> > index 1e25a45..8ee17ea 100644
> > --- a/arch/parisc/kernel/init_task.c
> > +++ b/arch/parisc/kernel/init_task.c
> > @@ -48,7 +48,7 @@ EXPORT_SYMBOL(init_mm);
> >   * "init_task" linker map entry..
> >   */
> >  union thread_union init_thread_union
> > -	__attribute__((aligned(128))) __attribute__((__section__(".data.init_task"))) =
> > +	__attribute__((aligned(128))) __init_task_data =
> >  		{ INIT_THREAD_INFO(init_task) };
This is a simple replacement with a nicer way to say "this belongs to
the .data.init_task section - no functional difference.


> >  
> >  #if PT_NLEVELS == 3
> > diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
> > index b5936c9..c8a528d 100644
> > --- a/arch/parisc/kernel/vmlinux.lds.S
> > +++ b/arch/parisc/kernel/vmlinux.lds.S
> > @@ -103,6 +103,8 @@ SECTIONS
> >  	. = ALIGN(L1_CACHE_BYTES);
> >  	/* Data */
> >  	.data : {
> > +		/* assembler code expects init_task to be 16k aligned */
> > +		INIT_TASK_DATA(16384)
> >  		NOSAVE_DATA
> >  		CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
> >  		DATA_DATA
> > @@ -133,14 +135,6 @@ SECTIONS
> >  	}
> >  	__bss_stop = .;
> >  
> > -
> > -	/* assembler code expects init_task to be 16k aligned */
> > -	. = ALIGN(16384);
> > -	/* init_task */
> > -	.data.init_task : {
> > -		*(.data.init_task)
> > -	}
> > -
This part moves away from a specific output section to including this in the
.data output section - with the _same_ alignmnet.
So the only issue here is that we move init_task before NOSAVE_DATA etc.

I do not see why you think this changes alignmnet?

	Sam
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From - Thu Nov 08 21:04:11 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Fixed strace [ was Re: ls -l is broken ]
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In-Reply-To: <20080417075357.GB23641@phobos.i.cabal.ca> from "Kyle McMartin" at Apr 17, 2008 03:53:57 am
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Hi Kyle,

> On Sun, Apr 06, 2008 at 07:09:59PM -0400, John David Anglin wrote:
> > > If you strace it, what syscall returns -EOPNOTSUPP?
> > 
> > strace is broken and quits before the relevant syscall.  Think I
> > mentioned this before is a different context.
> > 
> 
> Fixed & updated strace available at
> http://people.debian.org/~kyle/strace/

strace is either broken again or debian didn't pick up your fix.  The link
to your updated version is broken.

This happens when tracing sshd during a connection attempt with -f option:

strace -f -p 2390
Process 2390 attached - interrupt to quit
_newselect(7, [3 4], NULL, NULL, NULL
...
[pid  5627] open("/etc/selinux/config", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
upeek: ptrace(PTRACE_PEEKUSER,5627,4294967292,0): Input/output error
Process 5627 detached
<... _newselect resumed> )              = 1 (in [6])

Trying to figure out why sshd sometimes does wierd stuff.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:11 2018
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On Sat, May 02, 2009 at 06:34:59PM -0400, John David Anglin wrote:
> Hi Kyle,
> 
> > On Sun, Apr 06, 2008 at 07:09:59PM -0400, John David Anglin wrote:
> > > > If you strace it, what syscall returns -EOPNOTSUPP?
> > > 
> > > strace is broken and quits before the relevant syscall.  Think I
> > > mentioned this before is a different context.
> > > 
> > 
> > Fixed & updated strace available at
> > http://people.debian.org/~kyle/strace/
> 
> strace is either broken again or debian didn't pick up your fix.  The link
> to your updated version is broken.
> 
> This happens when tracing sshd during a connection attempt with -f option:
> 
> strace -f -p 2390
> Process 2390 attached - interrupt to quit
> _newselect(7, [3 4], NULL, NULL, NULL
> ...
> [pid  5627] open("/etc/selinux/config", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
> upeek: ptrace(PTRACE_PEEKUSER,5627,4294967292,0): Input/output error
> Process 5627 detached
> <... _newselect resumed> )              = 1 (in [6])
> 
> Trying to figure out why sshd sometimes does wierd stuff.
> 

I'll take a look, the strace link is broken because sadly the debian
people didn't migrate the entirety of the people machine when they
brought in a new one.

regards, Kyle
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From - Thu Nov 08 21:04:11 2018
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Subject: Re: Kernel Panic during init with 2.6.29-gb609308 (fresh clone of git
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> You might try building with the 4.1 branch.  I have had more luck
> with it.

I tried building 2.6.22.19 with debian 4.3.  Boot fails here:

md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
TCP cubic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
Freeing unused kernel memory: <0>------------[ cut here ]------------
Badness at 000000004011e44c [verbose debug info unavailable]
Backtrace:
Backtrace:
 [<00000000401128c0>] dump_stack+0x18/0x28

Have to hit 'RS' twice.  The first time there is a hpmc in the memory test:

#  Location|Alert| Encoded Field    |  Data Field    |   Keyword / Timestamp
-------------------------------------------------------------------------------
52951  SFW  0   0  0x030010D500E00000 0000000000000000 CPU_STOP
52950  SFW  0   2  0x438010EF00E01B50 00000000FFFFFFFF MEM_UNEXPECTED_HPMC
                                                      03 May 2009 00:35:26
52949  SFW  0   0  0x160000C400E00000 0000000280000000 MEM_INIT
52948  SFW  0   0  0x370000FB00E00000 000000F000004002 MEM_WARN_INIT_ONLY

Dave
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From - Thu Nov 08 21:04:11 2018
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[ moved debian-hppa to BCC and added linux-parisc to CC ]

On Fri, May 01, 2009 at 05:08:59PM +0200, Dirk Van Hertem wrote:
> hello,
> 
> My hppa box (B2000) experiences some problems: it freezes after a few
> (2-6) hours.
> 
> On the led display I get the following error codes:
> 
> FLT CBFC: SYS BD
> bus timeout
> OS HPMC bz err
> Bad OS HPMC len
> HPMC initiated

Hi Dirk,
Given the PCI listing you gave below, I agree the HPMC is likely caused by
the Promise SATA card.

> I don't have screen nor keyboard attached to it so debugging is a bit
> difficult.

AFAIK, the only way to debug this is to capture the HPMC dump.
The HPMC dump can only be capture via serial console. :(
(ie run "ser pim" at PDC prompt from a terminal emulator like minicom)

> 
> System:
> Debian lenny (stable), rather clean install
> 
> $ uname -a
> Linux coulomb 2.6.26-2-parisc #1 Fri Mar 27 03:29:17 UTC 2009 parisc
> GNU/Linux
> 
> 
> The machines has the following lspci:
> 
> 00:0c.0 Ethernet controller: Digital Equipment Corporation DECchip
> 21142/43 (rev 41)
> 00:0d.0 Multimedia audio controller: Analog Devices AD1889 sound chip
> 00:0e.0 IDE interface: National Semiconductor Corporation 87415/87560
> IDE (rev 03)
> 00:0e.1 Bridge: National Semiconductor Corporation 87560 Legacy I/O (rev 01)
> 00:0e.2 USB Controller: National Semiconductor Corporation USB
> Controller (rev 02)
> 00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53c895a (rev 01)
> 01:00.0 3D controller: Hewlett-Packard Company Visualize FXe (rev 03)
> 01:04.0 Mass storage controller: Promise Technology, Inc. PDC40718 (SATA
> 300 TX4) (rev 02)
> 
> Of which the last entry might well be the problem.
> 
> This is a promise card for my 3* 1TB sata disks. They seem to be
> initialized correctly, I made software raid with mdadm, but not I get
> the following:
> 
> $ cat /proc/mdstat
> Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5]
> [raid4] [raid10]
> md0 : active raid5 sdc1[0] sde1[3] sdd1[1]
>       1953519872 blocks level 5, 64k chunk, algorithm 2 [3/2] [UU_]
>       [=>...................]  recovery =  5.8% (56795292/976759936)
> finish=451.9min speed=33920K/sec
> 
> unused devices: <none>
> 
> This keeps on running for a few hours, until the machine gets unresponsive.
> 
> I don't think I get anything strange in syslog, kernel.log, messages,...
> 
> So, my questions:
> * Is this sata promise card the fault?

Likely, yes.

> * on the web, the errors on the display seemed to indicate hardware
> problems, but any insight on that?

HW caught the error. Unless this happens w/o Promise care present,
I'm not inclined to believe this is a HW problem.

> * Best ways to solve this?

Capture "ser pim" output (aka PIM dump).

> * Did I forget something?
> 
> Dirk
> 
> PS: Next thing I'll try is to remove the promise card to see if that was
> the problem
> PPS: dmesg in attach

thanks!
grant

> 
> -- 
> Dirk Van Hertem                       Dirk.VanHertem@esat.kuleuven.be
> Electrical Engineering Department  http://www.esat.kuleuven.be/electa
> K.U. Leuven, ESAT-ELECTA                         tel: +32-16-32.18.95
> 10, Kasteelpark Arenberg, B-3001 Heverlee        fax: +32-16-32.19.85

> [    0.000000] Initializing cgroup subsys cpu
> [    0.000000] Linux version 2.6.26-2-parisc (Debian 2.6.26-15) (dannf@debian.org) (gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-25)) #1 Fri Mar 27 03:29:17 UTC 2009
> [    0.000000] FP[0] enabled: Rev 1 Model 16
> [    0.000000] The 32-bit Kernel has started...
> [    0.000000] console [ttyB0] enabled
> [    0.000000] Initialized PDC Console for debugging.
> [    0.000000] Determining PDC firmware type: System Map.
> [    0.000000] model 00005d00 00000481 00000000 00000002 782d3480 100000f0 00000008 000000b2 000000b2
> [    0.000000] vers  00000301
> [    0.000000] CPUID vers 17 rev 11 (0x0000022b)
> [    0.000000] capabilities 0x3
> [    0.000000] model 9000/785/B2000
> [    0.000000] Total Memory: 1024 MB
> [    0.000000] initrd: 4f8ce000-4ffedfb5
> [    0.000000] initrd: reserving 3f8ce000-3ffedfb5 (mem_max 40000000)
> [    0.000000] On node 0 totalpages: 262144
> [    0.000000]   Normal zone: 2048 pages used for memmap
> [    0.000000]   Normal zone: 0 pages reserved
> [    0.000000]   Normal zone: 260096 pages, LIFO batch:31
> [    0.000000]   Movable zone: 0 pages used for memmap
> [    0.000000] LCD display at f05d0008,f05d0000 registered
> [    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260096
> [    0.000000] Kernel command line: root=/dev/sdb5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
> [    0.000000] PID hash table entries: 4096 (order: 12, 16384 bytes)
> [17179569.184000] Console: colour dummy device 160x64
> [17179569.248000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
> [17179569.348000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
> [17179569.532000] Memory: 1026560k/1048576k available (1961k kernel code, 21792k reserved, 882k data, 224k init)
> [17179569.660000] virtual kernel memory layout:
> [17179569.660000]     vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
> [17179569.660000]     memory  : 0x10000000 - 0x50000000   (1024 MB)
> [17179569.660000]       .init : 0x10410000 - 0x10448000   ( 224 kB)
> [17179569.660000]       .data : 0x102ea6b4 - 0x103c7000   ( 882 kB)
> [17179569.660000]       .text : 0x10100000 - 0x102ea6b4   (1961 kB)
> [17179570.112000] Calibrating delay loop... 798.72 BogoMIPS (lpj=1597440)
> [17179570.204000] Security Framework initialized
> [17179570.260000] SELinux:  Disabled at boot.
> [17179570.312000] Capability LSM initialized
> [17179570.368000] Mount-cache hash table entries: 512
> [17179570.428000] Initializing cgroup subsys ns
> [17179570.484000] Initializing cgroup subsys cpuacct
> [17179570.548000] Initializing cgroup subsys devices
> [17179570.612000] net_namespace: 648 bytes
> [17179570.660000] NET: Registered protocol family 16
> [17179570.724000] EISA bus registered
> [17179570.768000] Searching for devices...
> [17179571.020000] Found devices:
> [17179571.060000] 1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
> [17179571.160000] 2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
> [17179571.264000] 3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
> [17179571.364000] 4. Kazoo W+ at 0xfffa0000 [32] { 0, 0x0, 0x5d0, 0x00004 }
> [17179571.452000] 5. Memory at 0xfed10200 [49] { 1, 0x0, 0x09d, 0x00009 }
> [17179571.536000] Enabling regular chassis codes support v0.05
> [17179571.736000] CPU(s): 1 x PA8600 (PCX-W+) at 400.000000 MHz
> [17179571.812000] Whole cache flush 115727 cycles, flushing 3440640 bytes 467519 cycles
> [17179571.812000] Setting cache flush threshold to 1980 (1 CPUs online)
> [17179571.920000] SBA found Astro 2.1 at 0xfed00000
> [17179571.984000] Elroy version TR4.0 (0x5) found at 0xfed30000
> [17179572.060000] PCI: Enabled native mode for NS87415 (pif=0x8f)
> [17179572.140000] Elroy version TR4.0 (0x5) found at 0xfed32000
> [17179572.232000] powersw: Soft power switch at 0xf0400804 enabled.
> [17179572.324000] NET: Registered protocol family 2
> [17179572.424000] IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
> [17179572.520000] TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
> [17179572.624000] TCP bind hash table entries: 65536 (order: 6, 262144 bytes)
> [17179572.716000] TCP: Hash tables configured (established 131072 bind 65536)
> [17179572.808000] TCP reno registered
> [17179572.864000] NET: Registered protocol family 1
> [17179572.924000] checking if image is initramfs... it is
> [17179575.908000] Freeing initrd memory: 7295k freed
> [17179575.976000] Enabling PDC chassis warnings support v0.05
> [17179576.048000] unwind_init: start = 0x1035de10, end = 0x103850f0, entries = 10030
> [17179576.144000] WARNING: Out of order unwind entry! 1035f810 and 1035f820
> [17179576.232000] WARNING: Out of order unwind entry! 1035f820 and 1035f830
> [17179576.324000] audit: initializing netlink socket (disabled)
> [17179576.396000] type=2000 audit(1241188257.212:1): initialized
> [17179576.472000] VFS: Disk quotas dquot_6.5.1
> [17179576.528000] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> [17179576.620000] msgmni has been set to 2019
> [17179576.676000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
> [17179576.776000] io scheduler noop registered
> [17179576.832000] io scheduler anticipatory registered
> [17179576.896000] io scheduler deadline registered
> [17179576.956000] io scheduler cfq registered (default)
> [17179577.020000] SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 67) 
> [17179577.120000] SuperIO: Serial port 1 at 0x3f8
> [17179577.176000] SuperIO: Serial port 2 at 0x2f8
> [17179577.236000] SuperIO: Parallel port at 0x378
> [17179577.292000] SuperIO: Floppy controller at 0x3f0
> [17179577.356000] SuperIO: ACPI at 0x7e0
> [17179577.404000] SuperIO: USB regulator enabled
> [17179577.464000] PDC Stable Storage facility v0.30
> [17179577.836000] STI GSC/PCI core graphics driver Version 0.9a
> [17179577.912000] sti 0000:01:00.0: enabling SERR and PARITY (0046 -> 0146)
> [17179578.000000] STI PCI graphic ROM found at f4840000 (128 kB), fb at fb000000 (16 MB)
> [17179578.228000]     id 35acda16-9a02587, conforms to spec rev. 8.0c
> [17179578.312000]     graphics card name: HPA4982A
> [17179578.368000] sticon: Initializing STI text console.
> [17179578.436000] Console: switching to colour STI console 160x64
> [17179578.788000] stifb: 'HPA4982A' (id: 0x35acda16) not supported.
> [17179578.876000] Generic RTC Driver v1.07
> [17179578.928000] Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
> [17179579.036000] serial8250: ttyS0 at I/O 0x3f8 (irq = 3) is a 16550A
> [17179579.116000] console handover: boot [ttyB0] -> real [ttyS0]
> [17179579.192000] serial8250: ttyS1 at I/O 0x2f8 (irq = 4) is a 16550A
> [17179579.276000] brd: module loaded
> [17179579.316000] mice: PS/2 mouse device common for all mice
> [17179579.384000] TCP cubic registered
> [17179579.424000] NET: Registered protocol family 17
> [17179579.484000] registered taskstats version 1
> [17179579.536000] Freeing unused kernel memory: 224k freed
> [17179580.348000] SCSI subsystem initialized
> [17179581.996000] Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
> [17179582.080000] tulip0: no phy info, aborting mtable build
> [17179582.144000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
> [17179582.248000] eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xf4005000, 00:30:6e:08:0a:7f, IRQ 65.
> [17179582.544000] usbcore: registered new interface driver usbfs
> [17179582.612000] usbcore: registered new interface driver hub
> [17179582.704000] sym0: <895a> rev 0x1 at pci 0000:00:0f.0 irq 68
> [17179582.804000] libata version 3.00 loaded.
> [17179582.824000] sym0: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
> [17179582.904000] sym0: SCSI BUS has been reset.
> [17179582.964000] scsi0 : sym-2.2.3
> [17179583.008000] usbcore: registered new device driver usb
> [17179583.096000] ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver
> [17179583.096000] ohci_hcd: block sizes: ed 64 td 64
> [17179583.100000] ohci_hcd 0000:00:0e.2: OHCI Host Controller
> [17179583.168000] ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
> [17179583.260000] ohci_hcd 0000:00:0e.2: Using NSC SuperIO setup
> [17179583.260000] ohci_hcd 0000:00:0e.2: created debug files
> [17179583.260000] ohci_hcd 0000:00:0e.2: irq 1, io mem 0xf4004000
> [17179583.384000] ohci_hcd 0000:00:0e.2: OHCI controller state
> [17179583.384000] ohci_hcd 0000:00:0e.2: OHCI 1.0, NO legacy support registers
> [17179583.384000] ohci_hcd 0000:00:0e.2: control 0x083 HCFS=operational CBSR=3
> [17179583.384000] ohci_hcd 0000:00:0e.2: cmdstatus 0x00000 SOC=0
> [17179583.384000] ohci_hcd 0000:00:0e.2: intrstatus 0x00000000
> [17179583.384000] ohci_hcd 0000:00:0e.2: intrenable 0x8000001a MIE UE RD WDH
> [17179583.384000] ohci_hcd 0000:00:0e.2: hcca frame #0000
> [17179583.384000] ohci_hcd 0000:00:0e.2: roothub.a 00001003 POTPGT=0 NOCP NDP=3(3)
> [17179583.384000] ohci_hcd 0000:00:0e.2: roothub.b 000e0000 PPCM=000e DR=0000
> [17179583.384000] ohci_hcd 0000:00:0e.2: roothub.status 00008000 DRWE
> [17179583.384000] ohci_hcd 0000:00:0e.2: roothub.portstatus [0] 0x00000100 PPS
> [17179583.384000] ohci_hcd 0000:00:0e.2: roothub.portstatus [1] 0x00000100 PPS
> [17179583.384000] ohci_hcd 0000:00:0e.2: roothub.portstatus [2] 0x00000100 PPS
> [17179583.384000] usb usb1: default language 0x0409
> [17179583.384000] usb usb1: uevent
> [17179583.384000] usb usb1: usb_probe_device
> [17179583.384000] usb usb1: configuration #1 chosen from 1 choice
> [17179583.452000] usb usb1: adding 1-0:1.0 (config #1, interface 0)
> [17179583.452000] usb 1-0:1.0: uevent
> [17179583.452000] hub 1-0:1.0: usb_probe_interface
> [17179583.452000] hub 1-0:1.0: usb_probe_interface - got id
> [17179583.452000] hub 1-0:1.0: USB hub found
> [17179583.500000] hub 1-0:1.0: 3 ports detected
> [17179583.552000] hub 1-0:1.0: standalone hub
> [17179583.552000] hub 1-0:1.0: ganged power switching
> [17179583.552000] hub 1-0:1.0: no over-current protection
> [17179583.552000] hub 1-0:1.0: power on to power good time: 0ms
> [17179583.552000] hub 1-0:1.0: local power source is good
> [17179583.552000] hub 1-0:1.0: enabling power on all ports
> [17179583.656000] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
> [17179583.740000] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [17179583.828000] usb usb1: Product: OHCI Host Controller
> [17179583.892000] usb usb1: Manufacturer: Linux 2.6.26-2-parisc ohci_hcd
> [17179583.968000] usb usb1: SerialNumber: 0000:00:0e.2
> [17179584.032000] sata_promise 0000:01:04.0: version 2.12
> [17179584.032000] scsi1 : sata_promise
> [17179584.112000] Uniform Multi-Platform E-IDE driver
> [17179584.168000] ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> [17179584.268000] scsi2 : sata_promise
> [17179584.312000] scsi3 : sata_promise
> [17179584.352000] scsi4 : sata_promise
> [17179584.396000] ata1: SATA max UDMA/133 mmio m4096@0xf4820000 ata 0xf4820380 irq 70
> [17179584.484000] ata2: SATA max UDMA/133 mmio m4096@0xf4820000 ata 0xf4820280 irq 70
> [17179584.576000] ata3: SATA max UDMA/133 mmio m4096@0xf4820000 ata 0xf4820200 irq 70
> [17179584.668000] ata4: SATA max UDMA/133 mmio m4096@0xf4820000 ata 0xf4820300 irq 70
> [17179584.760000] hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0000
> [17179584.792000] NS87415: IDE controller (0x100b:0x0002 rev 0x03) at  PCI slot 0000:00:0e.0
> [17179584.892000] NS87415: 100% native mode on irq 7
> [17179584.948000]     ide0: BM-DMA at 0x0900-0x0907
> [17179585.008000]     ide1: BM-DMA at 0x0908-0x090f
> [17179585.060000] Probing IDE interface ide0...
> [17179585.184000] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [17179585.284000] ata1.00: ATA-8: Hitachi HDT721010SLA360, ST6OA31B, max UDMA/133
> [17179585.368000] ata1.00: 1953525168 sectors, multi 0: LBA48 NCQ (depth 0/32)
> [17179585.468000] ata1.00: configured for UDMA/133
> [17179585.692000] hda: FX4830T, ATAPI CD/DVD-ROM drive
> [17179585.856000] ata2: SATA link down (SStatus 0 SControl 300)
> [17179586.240000] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [17179586.340000] ata3.00: ATA-8: Hitachi HDT721010SLA360, ST6OA31B, max UDMA/133
> [17179586.424000] ata3.00: 1953525168 sectors, multi 0: LBA48 NCQ (depth 0/32)
> [17179586.524000] ata3.00: configured for UDMA/133
> [17179586.692000] Probing IDE interface ide1...
> [17179586.896000] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [17179586.996000] ata4.00: ATA-8: Hitachi HDT721010SLA360, ST6OA31B, max UDMA/133
> [17179587.080000] ata4.00: 1953525168 sectors, multi 0: LBA48 NCQ (depth 0/32)
> [17179587.180000] ata4.00: configured for UDMA/133
> [17179587.232000] scsi: waiting for bus probes to complete ...
> [17179587.524000] ide0 at 0xe00-0xe07,0xd02 on irq 7
> [17179587.580000] ide1 at 0xb00-0xb07,0xa02 on irq 7
> [17179587.636000] scsi 0:0:5:0: Direct-Access     IBM      IC35L073UCDY10-0 S27T PQ: 0 ANSI: 3
> [17179587.736000]  target0:0:5: tagged command queuing enabled, command queue depth 16.
> [17179587.828000]  target0:0:5: Beginning Domain Validation
> [17179587.892000]  target0:0:5: asynchronous
> [17179587.944000]  target0:0:5: wide asynchronous
> [17179587.996000]  target0:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
> [17179588.084000]  target0:0:5: Domain Validation skipping write tests
> [17179588.160000]  target0:0:5: Ending Domain Validation
> [17179588.220000] scsi 0:0:6:0: Direct-Access     QUANTUM  ATLAS5-9LVD      HP04 PQ: 0 ANSI: 3
> [17179588.320000]  target0:0:6: tagged command queuing enabled, command queue depth 16.
> [17179588.412000]  target0:0:6: Beginning Domain Validation
> [17179588.476000]  target0:0:6: asynchronous
> [17179588.528000]  target0:0:6: wide asynchronous
> [17179588.580000]  target0:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
> [17179588.668000]  target0:0:6: Domain Validation skipping write tests
> [17179588.744000]  target0:0:6: Ending Domain Validation
> [17179591.132000] scsi 1:0:0:0: Direct-Access     ATA      Hitachi HDT72101 ST6O PQ: 0 ANSI: 5
> [17179591.304000] scsi 3:0:0:0: Direct-Access     ATA      Hitachi HDT72101 ST6O PQ: 0 ANSI: 5
> [17179591.440000] Driver 'sd' needs updating - please use bus_type methods
> [17179591.608000] scsi 4:0:0:0: Direct-Access     ATA      Hitachi HDT72101 ST6O PQ: 0 ANSI: 5
> [17179591.732000] sd 0:0:5:0: [sda] 143374650 512-byte hardware sectors (73408 MB)
> [17179592.108000] sd 0:0:5:0: [sda] Write Protect is off
> [17179592.168000] sd 0:0:5:0: [sda] Mode Sense: cb 00 00 08
> [17179592.296000] hda: ATAPI 48X CD-ROM drive, 128kB Cache
> [17179592.356000] Uniform CD-ROM driver Revision: 3.20
> [17179592.524000] sd 0:0:5:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
> [17179592.640000] sd 0:0:5:0: [sda] 143374650 512-byte hardware sectors (73408 MB)
> [17179592.728000] sd 0:0:5:0: [sda] Write Protect is off
> [17179592.788000] sd 0:0:5:0: [sda] Mode Sense: cb 00 00 08
> [17179592.788000] sd 0:0:5:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
> [17179592.904000]  sda: sda1
> [17179592.964000] sd 0:0:5:0: [sda] Attached SCSI disk
> [17179593.044000] sd 0:0:6:0: [sdb] 17773524 512-byte hardware sectors (9100 MB)
> [17179593.140000] sd 0:0:6:0: [sdb] Write Protect is off
> [17179593.204000] sd 0:0:6:0: [sdb] Mode Sense: e3 00 10 08
> [17179593.232000] sd 0:0:6:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA
> [17179593.348000] sd 0:0:6:0: [sdb] 17773524 512-byte hardware sectors (9100 MB)
> [17179593.432000] sd 0:0:6:0: [sdb] Write Protect is off
> [17179593.496000] sd 0:0:6:0: [sdb] Mode Sense: e3 00 10 08
> [17179593.496000] sd 0:0:6:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA
> [17179593.600000]  sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 sdb7 sdb8 > sdb4
> [17179593.724000] sd 0:0:6:0: [sdb] Attached SCSI disk
> [17179593.792000] sd 1:0:0:0: [sdc] 1953525168 512-byte hardware sectors (1000205 MB)
> [17179593.884000] sd 1:0:0:0: [sdc] Write Protect is off
> [17179593.944000] sd 1:0:0:0: [sdc] Mode Sense: 00 3a 00 00
> [17179593.944000] sd 1:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [17179594.056000] sd 1:0:0:0: [sdc] 1953525168 512-byte hardware sectors (1000205 MB)
> [17179594.148000] sd 1:0:0:0: [sdc] Write Protect is off
> [17179594.208000] sd 1:0:0:0: [sdc] Mode Sense: 00 3a 00 00
> [17179594.208000] sd 1:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [17179594.320000]  sdc: sdc1
> [17179594.364000] sd 1:0:0:0: [sdc] Attached SCSI disk
> [17179594.432000] sd 3:0:0:0: [sdd] 1953525168 512-byte hardware sectors (1000205 MB)
> [17179594.520000] sd 3:0:0:0: [sdd] Write Protect is off
> [17179594.584000] sd 3:0:0:0: [sdd] Mode Sense: 00 3a 00 00
> [17179594.584000] sd 3:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [17179594.696000] sd 3:0:0:0: [sdd] 1953525168 512-byte hardware sectors (1000205 MB)
> [17179594.784000] sd 3:0:0:0: [sdd] Write Protect is off
> [17179594.844000] sd 3:0:0:0: [sdd] Mode Sense: 00 3a 00 00
> [17179594.844000] sd 3:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [17179594.956000]  sdd: sdd1
> [17179595.004000] sd 3:0:0:0: [sdd] Attached SCSI disk
> [17179595.068000] sd 4:0:0:0: [sde] 1953525168 512-byte hardware sectors (1000205 MB)
> [17179595.160000] sd 4:0:0:0: [sde] Write Protect is off
> [17179595.220000] sd 4:0:0:0: [sde] Mode Sense: 00 3a 00 00
> [17179595.220000] sd 4:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [17179595.332000] sd 4:0:0:0: [sde] 1953525168 512-byte hardware sectors (1000205 MB)
> [17179595.424000] sd 4:0:0:0: [sde] Write Protect is off
> [17179595.484000] sd 4:0:0:0: [sde] Mode Sense: 00 3a 00 00
> [17179595.484000] sd 4:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [17179595.596000]  sde: sde1
> [17179595.640000] sd 4:0:0:0: [sde] Attached SCSI disk
> [17179596.980000] md: linear personality registered for level -1
> [17179597.088000] md: multipath personality registered for level -4
> [17179597.200000] md: raid0 personality registered for level 0
> [17179597.312000] md: raid1 personality registered for level 1
> [17179597.416000] xor: measuring software checksum speed
> [17179597.496000]    8regs     :   943.000 MB/sec
> [17179597.568000]    8regs_prefetch:   933.000 MB/sec
> [17179597.644000]    32regs    :   960.000 MB/sec
> [17179597.716000]    32regs_prefetch:   945.000 MB/sec
> [17179597.772000] xor: using function: 32regs (960.000 MB/sec)
> [17179597.848000] async_tx: api initialized (sync-only)
> [17179598.012000] raid6: int32x1    183 MB/s
> [17179598.128000] raid6: int32x2    230 MB/s
> [17179598.244000] raid6: int32x4    272 MB/s
> [17179598.360000] raid6: int32x8    213 MB/s
> [17179598.408000] raid6: using algorithm int32x4 (272 MB/s)
> [17179598.468000] md: raid6 personality registered for level 6
> [17179598.536000] md: raid5 personality registered for level 5
> [17179598.604000] md: raid4 personality registered for level 4
> [17179598.896000] md: raid10 personality registered for level 10
> [17179599.136000] md: bind<sdd1>
> [17179599.172000] md: bind<sde1>
> [17179599.208000] md: bind<sdc1>
> [17179599.324000] raid5: device sdc1 operational as raid disk 0
> [17179599.392000] raid5: device sdd1 operational as raid disk 1
> [17179599.460000] raid5: allocated 3176kB for md0
> [17179599.512000] raid5: raid level 5 set md0 active with 2 out of 3 devices, algorithm 2
> [17179599.608000] RAID5 conf printout:
> [17179599.648000]  --- rd:3 wd:2
> [17179599.684000]  disk 0, o:1, dev:sdc1
> [17179599.728000]  disk 1, o:1, dev:sdd1
> [17179600.672000] EXT3-fs: INFO: recovery required on readonly filesystem.
> [17179600.752000] EXT3-fs: write access will be enabled during recovery.
> [17179601.128000] kjournald starting.  Commit interval 5 seconds
> [17179601.196000] EXT3-fs: recovery complete.
> [17179601.244000] EXT3-fs: mounted filesystem with ordered data mode.
> [17179603.920000] udevd version 125 started
> [17179604.124000] usb usb1: uevent
> [17179604.124000] usb 1-0:1.0: uevent
> [17179609.280000] Adding 489940k swap on /dev/sdb7.  Priority:-1 extents:1 across:489940k
> [17179609.764000] EXT3 FS on sdb5, internal journal
> [17179610.860000] LASI 82596 driver - Revision: 1.30
> [17179610.980000] loop: module loaded
> [17179616.900000] RAID5 conf printout:
> [17179616.944000]  --- rd:3 wd:2
> [17179616.980000]  disk 0, o:1, dev:sdc1
> [17179617.024000]  disk 1, o:1, dev:sdd1
> [17179617.072000]  disk 2, o:1, dev:sde1
> [17179617.116000] md: recovery of RAID array md0
> [17179617.168000] md: minimum _guaranteed_  speed: 1000 KB/sec/disk.
> [17179617.240000] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for recovery.
> [17179617.360000] md: using 128k window, over a total of 976759936 blocks.
> [17179632.056000] kjournald starting.  Commit interval 5 seconds
> [17179632.140000] EXT3 FS on sdb8, internal journal
> [17179632.196000] EXT3-fs: mounted filesystem with ordered data mode.
> [17179632.312000] kjournald starting.  Commit interval 5 seconds
> [17179632.392000] EXT3 FS on sdb4, internal journal
> [17179632.448000] EXT3-fs: mounted filesystem with ordered data mode.
> [17179632.556000] kjournald starting.  Commit interval 5 seconds
> [17179632.632000] EXT3 FS on sdb6, internal journal
> [17179632.688000] EXT3-fs: mounted filesystem with ordered data mode.
> [17179632.816000] kjournald starting.  Commit interval 5 seconds
> [17179632.920000] EXT3 FS on sda1, internal journal
> [17179632.976000] EXT3-fs: mounted filesystem with ordered data mode.
> [17179633.408000] kjournald starting.  Commit interval 5 seconds
> [17179633.512000] EXT3 FS on md0, internal journal
> [17179633.564000] EXT3-fs: mounted filesystem with ordered data mode.
> [17179639.712000] eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.

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From - Thu Nov 08 21:04:12 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Random memory corruption with 64-bit SMP 2.6.30-rc4
Date: Sun, 3 May 2009 14:25:53 -0400
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I'm not able to build gcc with 2.6.30-rc4.  Builds don't usually get
beyond stage1.  A variety of applications generate SEGVs, the most common
one being /bin/sh (bash).  I looked at one that seemed reasonably easy
to understand.  Quite a few of the SEGVs occur running _dl_fixup.

dave@mx3210:~/gnu/gcc/objdir/prev-gcc$ /usr/bin/gdb -c core /bin/bash
GNU gdb 6.8-debian
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "hppa-linux-gnu"...
(no debugging symbols found)

warning: core file may not match specified executable file.
Reading symbols from /lib/libncurses.so.5...(no debugging symbols found)...done.
Loaded symbols for /lib/libncurses.so.5
Reading symbols from /lib/libdl.so.2...Reading symbols from /usr/lib/debug/lib/libdl-2.9.so...done.
done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/libc.so.6...Reading symbols from /usr/lib/debug/lib/libc-2.9.so...done.
done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld.so.1...Reading symbols from /usr/lib/debug/lib/ld-2.9.so...done.
done.
Loaded symbols for /lib/ld.so.1

Core was generated by `/bin/sh -c echo unprotoize|sed 's,y,y,''.
Program terminated with signal 11, Segmentation fault.
[New process 6109]
#0  do_lookup_x (new_hash=2090198464, old_hash=0xc00a1b08, ref=0x159a0,
    result=0xc00a1b18, scope=0x40421b3c, i=0, flags=1, skip=0x0)
    at do-lookup.h:73
73      do-lookup.h: No such file or directory.
	in do-lookup.h
Function "fancy_abort" not defined.
Make breakpoint pending on future shared library load? (y or [n]) [answered N; input not from terminal]
Breakpoint 1 at 0x41c84
Breakpoint 2 at 0x406c52cc: file exit.c, line 39. (2 locations)
Breakpoint 3 at 0x406c3a14: file abort.c, line 55.

(gdb) disass 0x4040906c 0x4040908c
Dump of assembler code from 0x4040906c to 0x4040908c:
0x4040906c <do_lookup_x+356>:   cmpib,=,n 0,r25,0x40408fe4 <do_lookup_x+220>
0x40409070 <do_lookup_x+360>:   ldo 1(r3),r3
0x40409074 <do_lookup_x+364>:   ldw 38(r22),ret0
0x40409078 <do_lookup_x+368>:   ldw 34(r22),r20
0x4040907c <do_lookup_x+372>:   ldw 4(ret0),r16
0x40409080 <do_lookup_x+376>:   ldw 4(r20),ret0
0x40409084 <do_lookup_x+380>:   stw ret0,-9c(sp)
0x40409088 <do_lookup_x+384>:   ldw 184(r22),r20
End of assembler dump.

(gdb) bt
#0  do_lookup_x (new_hash=2090198464, old_hash=0xc00a1b08, ref=0x159a0,
    result=0xc00a1b18, scope=0x40421b3c, i=0, flags=1, skip=0x0)
    at do-lookup.h:73
#1  0x4040944c in _dl_lookup_symbol_x (undef_name=0x1ac6d "dup2",
    undef_map=0x404219e0, ref=0xc00a1a48, symbol_scope=0x40421b98,
    version=0x40001440, type_class=1, flags=1, skip_map=0x0) at dl-lookup.c:340
#2  0x4040d340 in _dl_fixup (l=0x404219e0, reloc_offset=<value optimized out>)
    at dl-runtime.c:108
#3  0x40413a48 in _dl_runtime_resolve () from /lib/ld.so.1
#4  0x00036260 in ?? ()
#5  0x00039d14 in ?? ()
#6  0x000373b8 in execute_command_internal ()
#7  0x00036bfc in ?? ()
#8  0x000382a4 in execute_command_internal ()
#9  0x00073a68 in parse_and_execute ()
#10 0x00025a1c in ?? ()
#11 0x000269a8 in main ()

(gdb) p/x $ret0
$1 = 0x0
(gdb) p/x $r20
$2 = 0x0
(gdb) p/x $r22
$3 = 0x404219e0
(gdb) p/x 0x404219e0 + 0x34
$4 = 0x40421a14
(gdb) x/64x 0x404219e0
0x404219e0:     0x00000000      0x4041a448      0x000ca0f0      0x40000bf0
0x404219f0:     0x00000000      0x404219e0      0x00000000      0x40421cb4
0x40421a00:     0x00000000      0x000ca100      0x000ca150      0x000ca140
0x40421a10:     0x000ca118      0x000ca120      0x000ca128      0x000ca168
0x40421a20:     0x000ca170      0x000ca178      0x000ca130      0x000ca138
0x40421a30:     0x000ca108      0x000ca110      0x00000000      0x00000000
0x40421a40:     0x00000000      0x00000000      0x00000000      0x00000000
0x40421a50:     0x000ca158      0x000ca148      0x00000000      0x000ca160
0x40421a60:     0x00000000      0x00000000      0x00000000      0x00000000
0x40421a70:     0x00000000      0x00000000      0x00000000      0x00000000
0x40421a80:     0x00000000      0x00000000      0x000ca188      0x000ca180
0x40421a90:     0x00000000      0x00000000      0x00000000      0x00000000
0x40421aa0:     0x00000000      0x00000000      0x00000000      0x00000000
0x40421ab0:     0x00000000      0x00000000      0x00000000      0x00000000
0x40421ac0:     0x00000000      0x000ca190      0x00000000      0x00000000
0x40421ad0:     0x00000000      0x00000000      0x00000000      0x00000000

So, the values in $r20 and $ret0 are not consistent with the values in
memory pointed to by $r22.  I looked at the assembler code for do_lookup_x
and as far as I can tell, there is no way to avoid the path through
do_lookup_x+364.  Further, $rp is consistent with do_lookup_x being
called at its normal entry position.  So, either memory or $r22 is
corrupt in the core dump.

The values like 0x000ca... probably are from bash.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:12 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH 3/5] parisc: use new macros for .data.init_task.
Date: Sun, 03 May 2009 21:37:38 +0200
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References: <1241135719-9286-1-git-send-email-tabbott@mit.edu> <1241135719-9286-2-git-send-email-tabbott@mit.edu> <1241135719-9286-3-git-send-email-tabbott@mit.edu> <1241135719-9286-4-git-send-email-tabbott@mit.edu> <49FBD681.9080605@gmx.de> <20090502221006.GA4309@uranus.ravnborg.org>
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Cc: Tim Abbott <tabbott@MIT.EDU>,
	Linux kernel mailing list <linux-kernel@vger.kernel.org>,
	Anders Kaseorg <andersk@mit.edu>,
	Waseem Daher <wdaher@mit.edu>,
	Denys Vlasenko <vda.linux@googlemail.com>,
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	Kyle McMartin <kyle@mcmartin.ca>, linux-parisc@vger.kernel.org
To: Sam Ravnborg <sam@ravnborg.org>
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Sam Ravnborg wrote:
> On Sat, May 02, 2009 at 07:13:37AM +0200, Helge Deller wrote:
>> Tim Abbott wrote:
>>> .data.init_task should not need a separate output section; this change
>>> moves it into the .data section.
>>>
>>> Signed-off-by: Tim Abbott <tabbott@mit.edu>
>>> Cc: Kyle McMartin <kyle@mcmartin.ca>
>>> Cc: Helge Deller <deller@gmx.de>
>>> Cc: linux-parisc@vger.kernel.org
>>
>> I think this patch is wrong, although it is theoretically correct.
>>
>> IIRC, gcc on hppa is not able to provide an alignment >= 8k, which is
>> why we have done the 16k alignment inside the linker script.
>> So, I think this change will prevent the parisc kernel to boot up.
>> Needs testing.
> 
> The patch does not do much...
> 
>> Helge
>>
>>> ---
>>>  arch/parisc/kernel/init_task.c   |    2 +-
>>>  arch/parisc/kernel/vmlinux.lds.S |   10 ++--------
>>>  2 files changed, 3 insertions(+), 9 deletions(-)
>>>
>>> diff --git a/arch/parisc/kernel/init_task.c b/arch/parisc/kernel/init_task.c
>>> index 1e25a45..8ee17ea 100644
>>> --- a/arch/parisc/kernel/init_task.c
>>> +++ b/arch/parisc/kernel/init_task.c
>>> @@ -48,7 +48,7 @@ EXPORT_SYMBOL(init_mm);
>>>   * "init_task" linker map entry..
>>>   */
>>>  union thread_union init_thread_union
>>> -	__attribute__((aligned(128))) __attribute__((__section__(".data.init_task"))) =
>>> +	__attribute__((aligned(128))) __init_task_data =
>>>  		{ INIT_THREAD_INFO(init_task) };
> This is a simple replacement with a nicer way to say "this belongs to
> the .data.init_task section - no functional difference.
> 
> 
>>>  
>>>  #if PT_NLEVELS == 3
>>> diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
>>> index b5936c9..c8a528d 100644
>>> --- a/arch/parisc/kernel/vmlinux.lds.S
>>> +++ b/arch/parisc/kernel/vmlinux.lds.S
>>> @@ -103,6 +103,8 @@ SECTIONS
>>>  	. = ALIGN(L1_CACHE_BYTES);
>>>  	/* Data */
>>>  	.data : {
>>> +		/* assembler code expects init_task to be 16k aligned */
>>> +		INIT_TASK_DATA(16384)
>>>  		NOSAVE_DATA
>>>  		CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
>>>  		DATA_DATA
>>> @@ -133,14 +135,6 @@ SECTIONS
>>>  	}
>>>  	__bss_stop = .;
>>>  
>>> -
>>> -	/* assembler code expects init_task to be 16k aligned */
>>> -	. = ALIGN(16384);
>>> -	/* init_task */
>>> -	.data.init_task : {
>>> -		*(.data.init_task)
>>> -	}
>>> -
> This part moves away from a specific output section to including this in the
> .data output section - with the _same_ alignmnet.
> So the only issue here is that we move init_task before NOSAVE_DATA etc.
> 
> I do not see why you think this changes alignmnet?

Ugh. Of course you are correct. It doesn't change anything.
Patch is OK for me.
I missed the 16384 in INIT_TASK_DATA(16384).

Thanks,
Helge

From - Thu Nov 08 21:04:12 2018
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From: Dirk Van Hertem <dirk.vanhertem@ieee.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: random freezes B2000 running debian hppa lenny
Date: Mon, 04 May 2009 01:07:06 +0200
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To: Grant Grundler <grundler@parisc-linux.org>
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Hello Grant,

Thanks for the reply.

Grant Grundler wrote:
[Dirk's problems with HP and promise card removed]
>> So, my questions:
>> * Is this sata promise card the fault?
> 
> Likely, yes.
> 
>> * on the web, the errors on the display seemed to indicate hardware
>> problems, but any insight on that?
> 
> HW caught the error. Unless this happens w/o Promise care present,
> I'm not inclined to believe this is a HW problem.

I am now running it without the promise card, I'll keep you informed
whether it blocks or not (I'll run a small program on it to give it some
cpu load, as the mdadm raid stuff also gave it quite some cpu load and
it still may be a HW fault).

> 
>> * Best ways to solve this?
> 
> Capture "ser pim" output (aka PIM dump).

If that doesn't kill the machine in a day or so, I'll make sure I'll get
some output from the serial console with the promise card attached. My
VT220 seems to have died recently (do you happen to know what a black
screen and blinking "hold screen" and "lock" lights mean on a real VT220?).

In case I don't get the VT220 working, I'll make sure I'll connect using
minicom (if I just find that nullmodem cable and the adapter of that old
laptop with serial port :P).

Thanks for the help!

Dirk

ps: I could put my sata disks in an old i386 of course, but I like the
hp parisc better...


-- 
Dirk Van Hertem                       Dirk.VanHertem@esat.kuleuven.be
Electrical Engineering Department  http://www.esat.kuleuven.be/electa
K.U. Leuven, ESAT-ELECTA                         tel: +32-16-32.18.95
10, Kasteelpark Arenberg, B-3001 Heverlee        fax: +32-16-32.19.85
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From - Thu Nov 08 21:04:12 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: Random memory corruption with 64-bit SMP 2.6.30-rc4
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On Sun, May 3, 2009 at 2:25 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> I'm not able to build gcc with 2.6.30-rc4. =A0Builds don't usually ge=
t
> beyond stage1. =A0A variety of applications generate SEGVs, the most =
common
> one being /bin/sh (bash). =A0I looked at one that seemed reasonably e=
asy
> to understand. =A0Quite a few of the SEGVs occur running _dl_fixup.

That is odd, but certainly a place where I would expect memory
corruption to bite you, since if you resolve the wrong address you
will likely crash.

> So, the values in $r20 and $ret0 are not consistent with the values i=
n
> memory pointed to by $r22. =A0I looked at the assembler code for do_l=
ookup_x
> and as far as I can tell, there is no way to avoid the path through
> do_lookup_x+364. =A0Further, $rp is consistent with do_lookup_x being
> called at its normal entry position. =A0So, either memory or $r22 is
> corrupt in the core dump.

Could you run the entire build with LD_BIND_NOW=3D1 set? Does it crash
anywhere else?

> The values like 0x000ca... probably are from bash.

Yes, the application would be at a low address.

Cheers,
Carlos.
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From: Greg Kroah-Hartman <gregkh@suse.de>
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Subject: [PATCH] parisc: remove driver_data direct access of struct device
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From: Greg Kroah-Hartman <gregkh@suse.de>

In the near future, the driver core is going to not allow direct access
to the driver_data pointer in struct device.  Instead, the functions
dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
have been around since the beginning, so are backwards compatible with
all older kernel versions.

Cc: linux-parisc@vger.kernel.org
Cc: Helge Deller <deller@gmx.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/parisc/eisa.c      |    2 +-
 drivers/parisc/sba_iommu.c |    6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -373,7 +373,7 @@ static int __init eisa_probe(struct pari
 	if (result >= 0) {
 		/* FIXME : Don't enumerate the bus twice. */
 		eisa_dev.root.dev = &dev->dev;
-		dev->dev.driver_data = &eisa_dev.root;
+		dev_set_drvdata(&dev->dev, &eisa_dev.root);
 		eisa_dev.root.bus_base_addr = 0;
 		eisa_dev.root.res = &eisa_dev.hba.io_space;
 		eisa_dev.root.slots = result;
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -2010,7 +2010,7 @@ void __init sba_init(void)
 void * sba_get_iommu(struct parisc_device *pci_hba)
 {
 	struct parisc_device *sba_dev = parisc_parent(pci_hba);
-	struct sba_device *sba = sba_dev->dev.driver_data;
+	struct sba_device *sba = dev_get_drvdata(&sba_dev->dev);
 	char t = sba_dev->id.hw_type;
 	int iocnum = (pci_hba->hw_path >> 3);	/* rope # */
 
@@ -2031,7 +2031,7 @@ void * sba_get_iommu(struct parisc_devic
 void sba_directed_lmmio(struct parisc_device *pci_hba, struct resource *r)
 {
 	struct parisc_device *sba_dev = parisc_parent(pci_hba);
-	struct sba_device *sba = sba_dev->dev.driver_data;
+	struct sba_device *sba = dev_get_drvdata(&sba_dev->dev);
 	char t = sba_dev->id.hw_type;
 	int i;
 	int rope = (pci_hba->hw_path & (ROPES_PER_IOC-1));  /* rope # */
@@ -2073,7 +2073,7 @@ void sba_directed_lmmio(struct parisc_de
 void sba_distributed_lmmio(struct parisc_device *pci_hba, struct resource *r )
 {
 	struct parisc_device *sba_dev = parisc_parent(pci_hba);
-	struct sba_device *sba = sba_dev->dev.driver_data;
+	struct sba_device *sba = dev_get_drvdata(&sba_dev->dev);
 	char t = sba_dev->id.hw_type;
 	int base, size;
 	int rope = (pci_hba->hw_path & (ROPES_PER_IOC-1));  /* rope # */
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From - Thu Nov 08 21:04:12 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: remove driver_data direct access of struct
	device
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Cc: Helge Deller <deller@gmx.de>, Kyle McMartin <kyle@mcmartin.ca>,
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To: Greg Kroah-Hartman <gregkh@suse.de>
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On Mon, May 04, 2009 at 01:13:59PM -0700, Greg Kroah-Hartman wrote:
> From: Greg Kroah-Hartman <gregkh@suse.de>
> 
> In the near future, the driver core is going to not allow direct access
> to the driver_data pointer in struct device.  Instead, the functions
> dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
> have been around since the beginning, so are backwards compatible with
> all older kernel versions.
> 

Cool, applied and will be sent along tonight unless you'd rather merge
it yourself in which case:

Acked-by: Kyle McMartin <kyle@mcmartin.ca>

> Cc: linux-parisc@vger.kernel.org
> Cc: Helge Deller <deller@gmx.de>
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
> ---
>  drivers/parisc/eisa.c      |    2 +-
>  drivers/parisc/sba_iommu.c |    6 +++---
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> --- a/drivers/parisc/eisa.c
> +++ b/drivers/parisc/eisa.c
> @@ -373,7 +373,7 @@ static int __init eisa_probe(struct pari
>  	if (result >= 0) {
>  		/* FIXME : Don't enumerate the bus twice. */
>  		eisa_dev.root.dev = &dev->dev;
> -		dev->dev.driver_data = &eisa_dev.root;
> +		dev_set_drvdata(&dev->dev, &eisa_dev.root);
>  		eisa_dev.root.bus_base_addr = 0;
>  		eisa_dev.root.res = &eisa_dev.hba.io_space;
>  		eisa_dev.root.slots = result;
> --- a/drivers/parisc/sba_iommu.c
> +++ b/drivers/parisc/sba_iommu.c
> @@ -2010,7 +2010,7 @@ void __init sba_init(void)
>  void * sba_get_iommu(struct parisc_device *pci_hba)
>  {
>  	struct parisc_device *sba_dev = parisc_parent(pci_hba);
> -	struct sba_device *sba = sba_dev->dev.driver_data;
> +	struct sba_device *sba = dev_get_drvdata(&sba_dev->dev);
>  	char t = sba_dev->id.hw_type;
>  	int iocnum = (pci_hba->hw_path >> 3);	/* rope # */
>  
> @@ -2031,7 +2031,7 @@ void * sba_get_iommu(struct parisc_devic
>  void sba_directed_lmmio(struct parisc_device *pci_hba, struct resource *r)
>  {
>  	struct parisc_device *sba_dev = parisc_parent(pci_hba);
> -	struct sba_device *sba = sba_dev->dev.driver_data;
> +	struct sba_device *sba = dev_get_drvdata(&sba_dev->dev);
>  	char t = sba_dev->id.hw_type;
>  	int i;
>  	int rope = (pci_hba->hw_path & (ROPES_PER_IOC-1));  /* rope # */
> @@ -2073,7 +2073,7 @@ void sba_directed_lmmio(struct parisc_de
>  void sba_distributed_lmmio(struct parisc_device *pci_hba, struct resource *r )
>  {
>  	struct parisc_device *sba_dev = parisc_parent(pci_hba);
> -	struct sba_device *sba = sba_dev->dev.driver_data;
> +	struct sba_device *sba = dev_get_drvdata(&sba_dev->dev);
>  	char t = sba_dev->id.hw_type;
>  	int base, size;
>  	int rope = (pci_hba->hw_path & (ROPES_PER_IOC-1));  /* rope # */
> 
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Subject: Re: [PATCH] parisc: remove driver_data direct access of struct
	device
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To: Kyle McMartin <kyle@mcmartin.ca>
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On Mon, May 04, 2009 at 05:33:49PM -0400, Kyle McMartin wrote:
> On Mon, May 04, 2009 at 01:13:59PM -0700, Greg Kroah-Hartman wrote:
> > From: Greg Kroah-Hartman <gregkh@suse.de>
> > 
> > In the near future, the driver core is going to not allow direct access
> > to the driver_data pointer in struct device.  Instead, the functions
> > dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
> > have been around since the beginning, so are backwards compatible with
> > all older kernel versions.
> > 
> 
> Cool, applied and will be sent along tonight unless you'd rather merge
> it yourself in which case:
> 
> Acked-by: Kyle McMartin <kyle@mcmartin.ca>

Nope, feel free to send it yourself, no objection from me at all :)

thanks,

greg k-h
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From - Thu Nov 08 21:04:12 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: Random memory corruption with 64-bit SMP 2.6.30-rc4
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To: carlos@systemhalted.org (Carlos O'Donell)
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> Could you run the entire build with LD_BIND_NOW=3D1 set? Does it crash
> anywhere else?

Got a lot further but bash SEGV'd again:

Program terminated with signal 11, Segmentation fault.
[New process 14746]
#0  0x00035ba4 in close_fd_bitmap ()
(gdb) bt
#0  0x00035ba4 in close_fd_bitmap ()
#1  0x00039d08 in ?? ()
#2  0x000373b8 in execute_command_internal ()
#3  0x00036d3c in ?? ()
#4  0x000382a4 in execute_command_internal ()
#5  0x00073a68 in parse_and_execute ()
#6  0x0004d840 in command_substitute ()
#7  0x00051e14 in ?? ()
#8  0x00053320 in ?? ()
#9  0x00056fa8 in expand_string_assignment ()
#10 0x00050f44 in ?? ()
#11 0x000512fc in ?? ()
#12 0x00053278 in ?? ()
#13 0x0003a0a4 in ?? ()
#14 0x000373b8 in execute_command_internal ()
#15 0x00038638 in execute_command ()
#16 0x00038310 in execute_command_internal ()
#17 0x00073a68 in parse_and_execute ()
#18 0x00025a1c in ?? ()
#19 0x000269a8 in main ()

Restarting, and it crashed again:

Core was generated by `/bin/sh ./libtool --tag=CXX --mode=compile /home/dave/gnu/gcc/objdir/./gcc/xgcc'.
Program terminated with signal 11, Segmentation fault.
[New process 32486]
#0  0x00000000 in ?? ()
(gdb) bt
#0  0x00000000 in ?? ()
#1  0x000ab3dc in ?? ()
#2  0x0006e930 in sh_xmalloc ()
#3  0x0004995c in stop_pipeline ()
#4  0x00037cec in execute_command_internal ()
#5  0x00038638 in execute_command ()
#6  0x00038310 in execute_command_internal ()
#7  0x00037a60 in execute_command_internal ()
#8  0x00038638 in execute_command ()
#9  0x000374c4 in execute_command_internal ()
#10 0x00037a60 in execute_command_internal ()
#11 0x00037a60 in execute_command_internal ()
#12 0x000395f8 in ?? ()
#13 0x0003a85c in ?? ()
#14 0x000373b8 in execute_command_internal ()
#15 0x00038638 in execute_command ()
#16 0x00038310 in execute_command_internal ()
#17 0x00037a60 in execute_command_internal ()
#18 0x00038638 in execute_command ()
#19 0x000374c4 in execute_command_internal ()
#20 0x00037a60 in execute_command_internal ()
#21 0x00038638 in execute_command ()
#22 0x00038310 in execute_command_internal ()
---Type <return> to continue, or q <return> to quit---
#23 0x00037a60 in execute_command_internal ()
#24 0x000395f8 in ?? ()
#25 0x0003a85c in ?? ()
#26 0x000373b8 in execute_command_internal ()
#27 0x00038638 in execute_command ()
#28 0x000374c4 in execute_command_internal ()
#29 0x00037a60 in execute_command_internal ()
#30 0x00038638 in execute_command ()
#31 0x000374c4 in execute_command_internal ()
#32 0x00038638 in execute_command ()
#33 0x000279c8 in reader_loop ()
#34 0x0002751c in main For this(gdb) frame 1
#1  0x000ab3dc in ()
(gdb) disass 0x000ab3cc 0x000ab3ec
Dump of assembler code from 0xab3cc to 0xab3ec:
0x000ab3cc:	stw ret0,1c8(r8)
0x000ab3d0:	copy r5,r26
0x000ab3d4:	b,l 0x798d0,rp
0x000ab3d8:	ldi df,r25
0x000ab3dc:	b,l 0xab188,r0
0x000ab3e0:	copy r3,ret0
0x000ab3e4:	ldi -21,ret0
0x000ab3e8:	stb ret0,0(r22)
End of assembler dump
(gdb) p/x $rp
$1 = 0xab3df
(gdb) disass 0x798d0 0x798e0
Dump of assembler code from 0x798d0 to 0x798e0:
0x000798d0:	addil L%5000,dp,r1
0x000798d4:	ldw 524(r1),r21
0x000798d8:	bv r0(r21)
0x000798dc:	ldw 528(r1),r19
End of assembler dump.
(gdb) p/x $dp
$2 = 0xca1c8
(gdb) p/x $r1
$3 = 0xcf1c8
(gdb) p/x $r21
$4 = 0x0
(gdb) p/x $r1+0x524
$5 = 0xcf6ec
(gdb) x/x 0xcf6ec
0xcf6ec:	0x40488250
(gdb) disass 0x40488250
Dump of assembler code for function *__GI_memset:
0x40488250 <*__GI_memset+0>:	cmpib,>>= 7,r24,0x404882f8 <*__GI_memset+168>
0x40488254 <*__GI_memset+4>:	copy r26,r22
0x40488258 <*__GI_memset+8>:	extrw,u r25,31,8,r31
...
(gdb) x/x 0xcf6f0
0xcf6f0:	0x40553f54
(gdb) p/x $r19
$6 = 0x0

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: Fixed strace [ was Re: ls -l is broken ]
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On Saturday 02 May 2009 19:43:48 Kyle McMartin wrote:
> On Sat, May 02, 2009 at 06:34:59PM -0400, John David Anglin wrote:
> > Hi Kyle,
> >
> > > On Sun, Apr 06, 2008 at 07:09:59PM -0400, John David Anglin wrote:
> > > > > If you strace it, what syscall returns -EOPNOTSUPP?
> > > >
> > > > strace is broken and quits before the relevant syscall.  Think I
> > > > mentioned this before is a different context.
> > >
> > > Fixed & updated strace available at
> > > http://people.debian.org/~kyle/strace/
> >
> > strace is either broken again or debian didn't pick up your fix.  The
> > link to your updated version is broken.
> >
> > This happens when tracing sshd during a connection attempt with -f
> > option:
> >
> > strace -f -p 2390
> > Process 2390 attached - interrupt to quit
> > _newselect(7, [3 4], NULL, NULL, NULL
> > ...
> > [pid  5627] open("/etc/selinux/config", O_RDONLY|O_LARGEFILE) =3D -1 EN=
OENT
> > (No such file or directory) upeek:
> > ptrace(PTRACE_PEEKUSER,5627,4294967292,0): Input/output error Process
> > 5627 detached
> > <... _newselect resumed> )              =3D 1 (in [6])
> >
> > Trying to figure out why sshd sometimes does wierd stuff.
>
> I'll take a look, the strace link is broken because sadly the debian
> people didn't migrate the entirety of the people machine when they
> brought in a new one.

if said fix could actually get posted to the strace devel list at sf.net,=20
that'd be even better ...

probably related:
http://bugs.gentoo.org/250631
=2Dmike

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From - Thu Nov 08 21:04:12 2018
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John David Anglin wrote:
>> Could you run the entire build with LD_BIND_NOW=3D1 set? Does it crash
>> anywhere else?
> 
> Got a lot further but bash SEGV'd again:
> 
> Program terminated with signal 11, Segmentation fault.
> [New process 14746]
> #0  0x00035ba4 in close_fd_bitmap ()
> (gdb) bt
> #0  0x00035ba4 in close_fd_bitmap ()
> #1  0x00039d08 in ?? ()
> #2  0x000373b8 in execute_command_internal ()
> #3  0x00036d3c in ?? ()
> #4  0x000382a4 in execute_command_internal ()
> #5  0x00073a68 in parse_and_execute ()
> #6  0x0004d840 in command_substitute ()
> #7  0x00051e14 in ?? ()
> #8  0x00053320 in ?? ()
> #9  0x00056fa8 in expand_string_assignment ()
> #10 0x00050f44 in ?? ()
> #11 0x000512fc in ?? ()
> #12 0x00053278 in ?? ()
> #13 0x0003a0a4 in ?? ()
> #14 0x000373b8 in execute_command_internal ()
> #15 0x00038638 in execute_command ()
> #16 0x00038310 in execute_command_internal ()
> #17 0x00073a68 in parse_and_execute ()
> #18 0x00025a1c in ?? ()
> #19 0x000269a8 in main ()
> 
> Restarting, and it crashed again:
> 
> Core was generated by `/bin/sh ./libtool --tag=CXX --mode=compile /home/dave/gnu/gcc/objdir/./gcc/xgcc'.
> Program terminated with signal 11, Segmentation fault.
> [New process 32486]
> #0  0x00000000 in ?? ()
> (gdb) bt
> #0  0x00000000 in ?? ()
> #1  0x000ab3dc in ?? ()
> #2  0x0006e930 in sh_xmalloc ()
> #3  0x0004995c in stop_pipeline ()
> #4  0x00037cec in execute_command_internal ()
> #5  0x00038638 in execute_command ()
> #6  0x00038310 in execute_command_internal ()
> #7  0x00037a60 in execute_command_internal ()
> #8  0x00038638 in execute_command ()
> #9  0x000374c4 in execute_command_internal ()
> #10 0x00037a60 in execute_command_internal ()
> #11 0x00037a60 in execute_command_internal ()
> #12 0x000395f8 in ?? ()
> #13 0x0003a85c in ?? ()
> #14 0x000373b8 in execute_command_internal ()
> #15 0x00038638 in execute_command ()
> #16 0x00038310 in execute_command_internal ()
> #17 0x00037a60 in execute_command_internal ()
> #18 0x00038638 in execute_command ()
> #19 0x000374c4 in execute_command_internal ()
> #20 0x00037a60 in execute_command_internal ()
> #21 0x00038638 in execute_command ()
> #22 0x00038310 in execute_command_internal ()
> ---Type <return> to continue, or q <return> to quit---
> #23 0x00037a60 in execute_command_internal ()
> #24 0x000395f8 in ?? ()
> #25 0x0003a85c in ?? ()
> #26 0x000373b8 in execute_command_internal ()
> #27 0x00038638 in execute_command ()
> #28 0x000374c4 in execute_command_internal ()
> #29 0x00037a60 in execute_command_internal ()
> #30 0x00038638 in execute_command ()
> #31 0x000374c4 in execute_command_internal ()
> #32 0x00038638 in execute_command ()
> #33 0x000279c8 in reader_loop ()
> #34 0x0002751c in main For this(gdb) frame 1
> #1  0x000ab3dc in ()
> (gdb) disass 0x000ab3cc 0x000ab3ec
> Dump of assembler code from 0xab3cc to 0xab3ec:
> 0x000ab3cc:	stw ret0,1c8(r8)
> 0x000ab3d0:	copy r5,r26
> 0x000ab3d4:	b,l 0x798d0,rp
> 0x000ab3d8:	ldi df,r25
> 0x000ab3dc:	b,l 0xab188,r0
> 0x000ab3e0:	copy r3,ret0
> 0x000ab3e4:	ldi -21,ret0
> 0x000ab3e8:	stb ret0,0(r22)
> End of assembler dump
> (gdb) p/x $rp
> $1 = 0xab3df
> (gdb) disass 0x798d0 0x798e0
> Dump of assembler code from 0x798d0 to 0x798e0:
> 0x000798d0:	addil L%5000,dp,r1
> 0x000798d4:	ldw 524(r1),r21
> 0x000798d8:	bv r0(r21)
> 0x000798dc:	ldw 528(r1),r19
> End of assembler dump.
> (gdb) p/x $dp
> $2 = 0xca1c8
> (gdb) p/x $r1
> $3 = 0xcf1c8
> (gdb) p/x $r21
> $4 = 0x0
> (gdb) p/x $r1+0x524
> $5 = 0xcf6ec
> (gdb) x/x 0xcf6ec
> 0xcf6ec:	0x40488250
> (gdb) disass 0x40488250
> Dump of assembler code for function *__GI_memset:
> 0x40488250 <*__GI_memset+0>:	cmpib,>>= 7,r24,0x404882f8 <*__GI_memset+168>
> 0x40488254 <*__GI_memset+4>:	copy r26,r22
> 0x40488258 <*__GI_memset+8>:	extrw,u r25,31,8,r31
> ...

Could it be, that always r21 and r22 are involved?
Maybe we don't restore them correctly after some syscalls like fork / getpwnam...?
Esp. the comment for r21-r22 in arch/parisc/kernel/entry.S:1708 seems interesting:

        /* Register saving semantics for system calls:

           %r1             clobbered by system call macro in userspace
           %r2             saved in PT_REGS by gateway page
           %r3  - %r18     preserved by C code (saved by signal code)
           %r19 - %r20     saved in PT_REGS by gateway page
           %r21 - %r22     non-standard syscall args
                           stored in kernel stack by gateway page
           %r23 - %r26     arg3-arg0, saved in PT_REGS by gateway page
           %r27 - %r30     saved in PT_REGS by gateway page
           %r31            syscall return pointer
         */

Helge
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From - Thu Nov 08 21:04:12 2018
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To: deller@gmx.de (Helge Deller)
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> Could it be, that always r21 and r22 are involved?

I'll examine some more cases.  This is the best theory yet.

> Maybe we don't restore them correctly after some syscalls like fork / getpwnam...?

This morning, I had an authentication failure in this code:

May  5 09:30:32 hiauly6 sshd[18028]: fatal: Privilege separation user sshd does not exist

        /* Store privilege separation user for later use if required. */
	if ((privsep_pw = getpwnam(SSH_PRIVSEP_USER)) == NULL) {
		if (use_privsep || options.kerberos_authentication)
			fatal("Privilege separation user %s does not exist",
			    SSH_PRIVSEP_USER);
	} else {

So, getpwent and getpwnam fail somewhat randomly following a fork.  The
corresponding group calls also fail.  The errno for the getpwent failure
is 0 (hacked sshd).  There is definitely a timing or random aspect to
the failure of these calls.

I'm just using pam_unix (compat mode for passwd, group ansd shadow).  

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:12 2018
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Subject: Re: Fixed strace [ was Re: ls -l is broken ]
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On Mon, May 04, 2009 at 11:46:09PM -0400, Mike Frysinger wrote:
> 
> if said fix could actually get posted to the strace devel list at sf.net, 
> that'd be even better ...
> 

It was, when I fixed it, several years ago...

> probably related:
> http://bugs.gentoo.org/250631
> -mike


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From - Thu Nov 08 21:04:13 2018
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On Tue, May 05, 2009 at 11:37:23AM -0400, Kyle McMartin wrote:
> On Mon, May 04, 2009 at 11:46:09PM -0400, Mike Frysinger wrote:
> > 
> > if said fix could actually get posted to the strace devel list at sf.net, 
> > that'd be even better ...
> > 
> 
> It was, when I fixed it, several years ago...
> 
> > probably related:
> > http://bugs.gentoo.org/250631
> > -mike
> 

Huh, maybe it bounced. In any event, the old people.debian.org is still
accessible, so I've copied the fixed 4.5.16-1 to the new people, so it
should be accessible again.
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From - Thu Nov 08 21:04:13 2018
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On Mon, May 04, 2009 at 11:46:09PM -0400, Mike Frysinger wrote:
> if said fix could actually get posted to the strace devel list at sf.net, 
> that'd be even better ...
> 
> probably related:
> http://bugs.gentoo.org/250631

http://userweb.kernel.org/~kyle/strace-add-hppa-syscalls.diff
http://userweb.kernel.org/~kyle/strace-fix-hppa-syscalls.diff

Apply against upstream strace cvs. I'll poke Roland about it.

cheers, Kyle
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From - Thu Nov 08 21:04:13 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: Fixed strace [ was Re: ls -l is broken ]
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Cc: Kyle McMartin <kyle@mcmartin.ca>, matthew@wil.cx,
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Sat, May 02, 2009 at 06:34:59PM -0400, John David Anglin wrote:
> Hi Kyle,
> 
> > On Sun, Apr 06, 2008 at 07:09:59PM -0400, John David Anglin wrote:
> > > > If you strace it, what syscall returns -EOPNOTSUPP?
> > > 
> > > strace is broken and quits before the relevant syscall.  Think I
> > > mentioned this before is a different context.
> > > 
> > 
> > Fixed & updated strace available at
> > http://people.debian.org/~kyle/strace/
> 
> strace is either broken again or debian didn't pick up your fix.  The link
> to your updated version is broken.
> 
> This happens when tracing sshd during a connection attempt with -f option:
> 
> strace -f -p 2390
> Process 2390 attached - interrupt to quit
> _newselect(7, [3 4], NULL, NULL, NULL
> ...
> [pid  5627] open("/etc/selinux/config", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
> upeek: ptrace(PTRACE_PEEKUSER,5627,4294967292,0): Input/output error
> Process 5627 detached
> <... _newselect resumed> )              = 1 (in [6])
> 

Hmm, I'm seeing strace (4.5.18-1) segfault on sys_rt_sigaction. Rather
confused as to why though,

(gdb) 
#0  0x0002b3ec in __canonicalize_funcptr_for_compare ()
#1  0x00026010 in sys_rt_sigaction (tcp=0x4e060) at ../signal.c:1886
#2  0x00017b10 in trace_syscall (tcp=0x4e060) at ../syscall.c:2553
#3  0x00016c98 in main (argc=<value optimized out>, argv=0xbff8202c)
    at ../strace.c:2475

which is:

                if (sa.__sigaction_handler.__sa_handler == SIG_ERR)
                        tprintf("{SIG_ERR, ");

where:

struct new_sigaction
{
        union
        {
                __sighandler_t __sa_handler;
                void (*__sa_sigaction) (int, siginfo_t *, void *);
        }
        __sigaction_handler;

which isn't materially different from upstream (just the union...)

regards, Kyle

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From - Thu Nov 08 21:04:13 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Fixed strace [ was Re: ls -l is broken ]
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To: kyle@mcmartin.ca (Kyle McMartin)
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> (gdb) 
> #0  0x0002b3ec in __canonicalize_funcptr_for_compare ()
> #1  0x00026010 in sys_rt_sigaction (tcp=0x4e060) at ../signal.c:1886
> #2  0x00017b10 in trace_syscall (tcp=0x4e060) at ../syscall.c:2553
> #3  0x00016c98 in main (argc=<value optimized out>, argv=0xbff8202c)
>     at ../strace.c:2475
> 
> which is:
> 
>                 if (sa.__sigaction_handler.__sa_handler == SIG_ERR)
>                         tprintf("{SIG_ERR, ");

Is __canonicalize_funcptr_for_compare choking on SIG_ERR?  This is
a special value (-1).  The plabel bit is set.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:13 2018
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On Tue, May 05, 2009 at 02:17:49PM -0400, John David Anglin wrote:
> > (gdb) 
> > #0  0x0002b3ec in __canonicalize_funcptr_for_compare ()
> > #1  0x00026010 in sys_rt_sigaction (tcp=0x4e060) at ../signal.c:1886
> > #2  0x00017b10 in trace_syscall (tcp=0x4e060) at ../syscall.c:2553
> > #3  0x00016c98 in main (argc=<value optimized out>, argv=0xbff8202c)
> >     at ../strace.c:2475
> > 
> > which is:
> > 
> >                 if (sa.__sigaction_handler.__sa_handler == SIG_ERR)
> >                         tprintf("{SIG_ERR, ");
> 
> Is __canonicalize_funcptr_for_compare choking on SIG_ERR?  This is
> a special value (-1).  The plabel bit is set.
> 

Ahh, brilliant. Casting to long fixed it.

cheers, Kyle
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From - Thu Nov 08 21:04:13 2018
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> On Tue, May 05, 2009 at 02:17:49PM -0400, John David Anglin wrote:
> > > (gdb) 
> > > #0  0x0002b3ec in __canonicalize_funcptr_for_compare ()
> > > #1  0x00026010 in sys_rt_sigaction (tcp=0x4e060) at ../signal.c:1886
> > > #2  0x00017b10 in trace_syscall (tcp=0x4e060) at ../syscall.c:2553
> > > #3  0x00016c98 in main (argc=<value optimized out>, argv=0xbff8202c)
> > >     at ../strace.c:2475
> > > 
> > > which is:
> > > 
> > >                 if (sa.__sigaction_handler.__sa_handler == SIG_ERR)
> > >                         tprintf("{SIG_ERR, ");
> > 
> > Is __canonicalize_funcptr_for_compare choking on SIG_ERR?  This is
> > a special value (-1).  The plabel bit is set.
> > 
> 
> Ahh, brilliant. Casting to long fixed it.

Probably, the cast should be to int.  __canonicalize_funcptr_for_compare
isn't used in the 64-bit runtime.

Still, I'm not sure why this fixed the problem as
__canonicalize_funcptr_for_compare checks for -1.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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From - Thu Nov 08 21:04:13 2018
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On Tue, May 05, 2009 at 03:09:50PM -0400, John David Anglin wrote:
> Probably, the cast should be to int.  __canonicalize_funcptr_for_compare
> isn't used in the 64-bit runtime.
> 
> Still, I'm not sure why this fixed the problem as
> __canonicalize_funcptr_for_compare checks for -1.
> 

If we cast both sides to int, then we don't generate a call there...

--Kyle
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On Tuesday 05 May 2009 11:37:23 Kyle McMartin wrote:
> On Mon, May 04, 2009 at 11:46:09PM -0400, Mike Frysinger wrote:
> > if said fix could actually get posted to the strace devel list at sf.ne=
t,
> > that'd be even better ...
>
> It was, when I fixed it, several years ago...

devel was pretty dead then ... but if you post it to the mailing list, peop=
le=20
should pick it up now as Roland isnt the only one watching it with commit=20
access
=2Dmike

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From - Thu Nov 08 21:04:13 2018
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Subject: Re: Fixed strace [ was Re: ls -l is broken ]
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> On Tue, May 05, 2009 at 03:09:50PM -0400, John David Anglin wrote:
> > Probably, the cast should be to int.  __canonicalize_funcptr_for_compare
> > isn't used in the 64-bit runtime.
> > 
> > Still, I'm not sure why this fixed the problem as
> > __canonicalize_funcptr_for_compare checks for -1.
> > 
> 
> If we cast both sides to int, then we don't generate a call there...

That will certainly fix the problem but I'd really like to know
why we get a segv.  I suspect we are not handling a deferred function
pointer correctly.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:13 2018
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Subject: Re: Random memory corruption with 64-bit SMP 2.6.30-rc4
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> Could it be, that always r21 and r22 are involved?
> Maybe we don't restore them correctly after some syscalls like fork / getpwnam...?
> Esp. the comment for r21-r22 in arch/parisc/kernel/entry.S:1708 seems interesting:
> 
>         /* Register saving semantics for system calls:
> 
>            %r1             clobbered by system call macro in userspace
>            %r2             saved in PT_REGS by gateway page
>            %r3  - %r18     preserved by C code (saved by signal code)
>            %r19 - %r20     saved in PT_REGS by gateway page
>            %r21 - %r22     non-standard syscall args
>                            stored in kernel stack by gateway page

This is only true for r21 and r22 with a 32-bit kernel (see syscall.S:176).
However, the argument locations might get mixed up if one wasn't careful.
The getpwent bug occurs with both 32 and 64-bit kernels on the c3750.

I guess I should test a UP kernel on the rp3440.  I have never seen
the getpwent bug on the rp3440.  I don't see the memory corruption
on the c3750 (gcc builds without problems using 2.6.30-rc4).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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From - Thu Nov 08 21:04:13 2018
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On Tue, May 05, 2009 at 03:46:57PM -0400, John David Anglin wrote:
> > On Tue, May 05, 2009 at 03:09:50PM -0400, John David Anglin wrote:
> > > Probably, the cast should be to int.  __canonicalize_funcptr_for_compare
> > > isn't used in the 64-bit runtime.
> > > 
> > > Still, I'm not sure why this fixed the problem as
> > > __canonicalize_funcptr_for_compare checks for -1.
> > > 
> > 
> > If we cast both sides to int, then we don't generate a call there...
> 
> That will certainly fix the problem but I'd really like to know
> why we get a segv.  I suspect we are not handling a deferred function
> pointer correctly.
> 

At a guess, you're probably right, the faulting insn is a load:

0x0002b3a8 <__canonicalize_funcptr_for_compare+48>:	bb,>= r26,1e,0x2b394 <__canonicalize_funcptr_for_compare+28>
0x0002b3ac <__canonicalize_funcptr_for_compare+52>:	copy r26,r3
0x0002b3b0 <__canonicalize_funcptr_for_compare+56>:	addil L%800,dp,r1
0x0002b3b4 <__canonicalize_funcptr_for_compare+60>:	ldw 294(r1),ret1
0x0002b3b8 <__canonicalize_funcptr_for_compare+64>:	depwi 0,31,2,r3
0x0002b3bc <__canonicalize_funcptr_for_compare+68>:	ldw 0(r3),r26

god knows I can't recall how DEP*I work, but I guess this is clearing
the bottom two bits of %r3 if bit 31 is set in %r26?

(gdb) p/x $r3 
$3 = 0x407d2f18
(gdb) p/x $r26
$4 = 0x407d2f1a

This looks like the sigaction handler, (it appears __canon..._compare
detects -1 already.)

regards, Kyle
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From - Thu Nov 08 21:04:13 2018
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> On Tue, May 05, 2009 at 03:46:57PM -0400, John David Anglin wrote:
> > > On Tue, May 05, 2009 at 03:09:50PM -0400, John David Anglin wrote:
> > > > Probably, the cast should be to int.  __canonicalize_funcptr_for_compare
> > > > isn't used in the 64-bit runtime.
> > > > 
> > > > Still, I'm not sure why this fixed the problem as
> > > > __canonicalize_funcptr_for_compare checks for -1.
> > > > 
> > > 
> > > If we cast both sides to int, then we don't generate a call there...
> > 
> > That will certainly fix the problem but I'd really like to know
> > why we get a segv.  I suspect we are not handling a deferred function
> > pointer correctly.
> > 
> 
> At a guess, you're probably right, the faulting insn is a load:
> 
> 0x0002b3a8 <__canonicalize_funcptr_for_compare+48>:	bb,>= r26,1e,0x2b394 <__canonicalize_funcptr_for_compare+28>
> 0x0002b3ac <__canonicalize_funcptr_for_compare+52>:	copy r26,r3
> 0x0002b3b0 <__canonicalize_funcptr_for_compare+56>:	addil L%800,dp,r1
> 0x0002b3b4 <__canonicalize_funcptr_for_compare+60>:	ldw 294(r1),ret1
> 0x0002b3b8 <__canonicalize_funcptr_for_compare+64>:	depwi 0,31,2,r3
> 0x0002b3bc <__canonicalize_funcptr_for_compare+68>:	ldw 0(r3),r26
> 
> god knows I can't recall how DEP*I work, but I guess this is clearing
> the bottom two bits of %r3 if bit 31 is set in %r26?
> 
> (gdb) p/x $r3 
> $3 = 0x407d2f18
> (gdb) p/x $r26
> $4 = 0x407d2f1a
> 
> This looks like the sigaction handler, (it appears __canon..._compare
> detects -1 already.)

This all seems correct.  r3 should be pointing to a function descriptor
for the sigaction handler (plabel bit is set).  What is the interruption
generated by the ldw at 0x0002b3bc?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: Random memory corruption with 64-bit SMP 2.6.30-rc4
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On Tue, 05 May 2009, John David Anglin wrote:

> I guess I should test a UP kernel on the rp3440.

It doesn't boot.  hpmc info attached.  I have the sense that cutting the
number of processors down to two reduced the segv rate with the SMP build.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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Log Entry 361: 06 May 2009 12:25:11
Alert Level 2: Informational
Keyword: MEM_MULTIPLE_ERRORS_DETECTED
The firmware memory test has detected multiple memory errors.
Logged by: System Firmware  0
Data: Implementation dependent data field
0x5680132900E01FC0 0000000000000080


Log Entry 360: 06 May 2009 12:25:10
Alert Level 2: Informational
Keyword: MEM_CORR_ERR
Correctable (single-bit) ECC error in DIMM
Logged by: System Firmware  0
Data: Location - Memory (SIMM or DIMM): DIMM Slot 0x1B, Extender 0
0x448000A700E01FA0 FFFFFFFF001BFF74

Log Entry 359: 06 May 2009 12:24:22
Alert Level 2: Informational
Keyword: IPMI Type-E0 Event
Logged by: Unknown 0
Data: Implementation dependent data field
0x56801A4A00E01F80 0000000000000002


Log Entry 358: 06 May 2009 12:23:54
Alert Level 2: Informational
Keyword: Type-02 c00301 12583681
Time set
Logged by: Baseboard Management Controller;
Sensor: SEL Time Set
Data1: State Asserted
0x204A01815A021F70 FFFF0103FDC00300

Log Entry 357: 06 May 2009 12:23:51
Alert Level 2: Informational
Keyword: Type-02 127002 1208322
Soft Reset
Logged by: Baseboard Management Controller;
Sensor: System Event
0x204A018157021F60 FFFF027000120300


Log Entry 356: 06 May 2009 12:22:44
Alert Level 2: Informational
Keyword: MC_BR_TO_OS_HPMC_FAILED
MC_BR_TO_OS_HPMC_FAILED
Logged by: System Firmware  0
Data: Implementation dependent data field
0x5680106400E01F40 FFFFFFF0F0435110

Log Entry 355: 06 May 2009 12:22:44
Alert Level 2: Informational
Keyword: MC_OS_HPMC_LEN_ERR
MC_OS_HPMC_LEN_ERR
Logged by: System Firmware  0
Data: Implementation dependent data field
0x5680100B00E01F20 0000000000000194


Log Entry 354: 06 May 2009 12:22:43
Alert Level 7: Fatal
Keyword: MC_HPMC_MONARCH_SELECTED
MC_HPMC_MONARCH_SELECTED
Logged by: System Firmware  0
Data: Implementation dependent data field
0xF680105E00E01F00 FFFFFFF0F0C00000

Log Entry 353: 06 May 2009 12:22:43
Alert Level 2: Informational
Keyword: ERR_CPU_CHECK_SUMMARY
CPU API CpuProcessMachineCheck return value report
Logged by: System Firmware  0
Data: Status return from PDC function call
0x57800F7300E01EE0 8040004000000000


Log Entry 352: 06 May 2009 12:22:43
Alert Level 7: Fatal
Keyword: ERR_CHECK_HPMC
An HPMC has been encountered.
Logged by: System Firmware  0
Data: Code address
0xE880035C00E01EC0 000000004011E768

Log Entry 351: 06 May 2009 12:19:30
Alert Level 2: Informational
Keyword: IPMI Type-E0 Event
Logged by: Unknown 0
Data: Implementation dependent data field
0x56801A4A00E01EA0 0000000000000002


Log Entry 350: 06 May 2009 12:19:02
Alert Level 2: Informational
Keyword: Type-02 c00301 12583681
Time set
Logged by: Baseboard Management Controller;
Sensor: SEL Time Set
Data1: State Asserted
0x204A018036021E90 FFFF0103FDC00300

Log Entry 349: 06 May 2009 12:19:00
Alert Level 2: Informational
Keyword: Type-02 127002 1208322
Soft Reset
Logged by: Baseboard Management Controller;
Sensor: System Event
0x204A018034021E80 FFFF027000120300


Log Entry 348: 06 May 2009 12:17:53
Alert Level 2: Informational
Keyword: MC_BR_TO_OS_HPMC_FAILED
MC_BR_TO_OS_HPMC_FAILED
Logged by: System Firmware  0
Data: Implementation dependent data field
0x5680106400E01E60 FFFFFFF0F0435110

Log Entry 347: 06 May 2009 12:17:53
Alert Level 2: Informational
Keyword: MC_OS_HPMC_LEN_ERR
MC_OS_HPMC_LEN_ERR
Logged by: System Firmware  0
Data: Implementation dependent data field
0x5680100B00E01E40 0000000000000194


Log Entry 346: 06 May 2009 12:17:53
Alert Level 7: Fatal
Keyword: MC_HPMC_MONARCH_SELECTED
MC_HPMC_MONARCH_SELECTED
Logged by: System Firmware  0
Data: Implementation dependent data field
0xF680105E00E01E20 FFFFFFF0F0C00000

Log Entry 345: 06 May 2009 12:17:53
Alert Level 2: Informational
Keyword: ERR_CPU_CHECK_SUMMARY
CPU API CpuProcessMachineCheck return value report
Logged by: System Firmware  0
Data: Status return from PDC function call
0x57800F7300E01E00 8040004000000000


Log Entry 344: 06 May 2009 12:17:52
Alert Level 7: Fatal
Keyword: ERR_CHECK_HPMC
An HPMC has been encountered.
Logged by: System Firmware  0
Data: Code address
0xE880035C00E01DE0 000000004011E768

Log Entry 343: 06 May 2009 12:09:40
Alert Level 2: Informational
Keyword: IPMI Type-E0 Event
Logged by: Unknown 0
Data: Implementation dependent data field
0x56801A4A00E01DC0 0000000000000002


Log Entry 342: 06 May 2009 12:09:12
Alert Level 2: Informational
Keyword: Type-02 c00301 12583681
Time set
Logged by: Baseboard Management Controller;
Sensor: SEL Time Set
Data1: State Asserted
0x204A017DE8021DB0 FFFF0103FDC00300

Log Entry 341: 06 May 2009 12:09:08
Alert Level 2: Informational
Keyword: Type-02 127002 1208322
Soft Reset
Logged by: Baseboard Management Controller;
Sensor: System Event
0x204A017DE4021DA0 FFFF027000120300


Log Entry 340: 06 May 2009 12:05:41
Alert Level 2: Informational
Keyword: IPMI Type-E0 Event
Logged by: Unknown 0
Data: Implementation dependent data field
0x56801A4A00E01D80 0000000000000002

Log Entry 339: 06 May 2009 12:05:27
Alert Level 2: Informational
Keyword: Type-02 c00301 12583681
Time set
Logged by: Baseboard Management Controller;
Sensor: SEL Time Set
Data1: State Asserted
0x204A017D07021D70 FFFF0103FDC00300


Log Entry 338: 06 May 2009 12:05:26
Alert Level 2: Informational
Keyword: Type-02 127002 1208322
Soft Reset
Logged by: Baseboard Management Controller;
Sensor: System Event
0x204A017D06021D60 FFFF027000120300

PROCESSOR PIM INFORMATION

Original Product Number:  A7136A
Current Product Number:   A7136A


-----------------  Processor 0 HPMC Information - PDC Version: 45.11  ------

Timestamp =   Wed May  6 12:22:43 GMT 2009    (20:09:05:06:12:22:43)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0xe800035c00e00000 0x000000004011e768
       0x57000f7300e00000 0x8040004000000000
       0xf600105e00e00000 0xfffffff0f0c00000
       0x140003b200e00000 0x000000000000000b
       0x5600100b00e00000 0x0000000000000194
       0x5600106400e00000 0xfffffff0f0435110

General Registers 0 - 31
00-03  0000000000000000  0000000040117044  00000000401171b0  000000007fbb8830
04-07  00000000405614e0  00000000401da9c8  000000000800000f  0000000000000400
08-11  000000007f2fcb48  000000007fbb8800  0000000000000001  0000000000000400
12-15  0000000000000fff  00000000000fff7f  0000000000000000  00000000fb2a7038
16-19  000000007fbb8830  00000000000883b9  0000000000000000  0000000000000038
20-23  00000000401171a4  0000000008000008  0000000000000000  000000000000001c
24-27  0000000000000000  000000000e6010dc  0000000000000000  00000000405614e0
28-31  000000000c001100  000000007fbb8e90  000000007fbb90e0  0000000000000000

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000006  0000000000000000  00000000000000c0  000000000000003d
12-15  0000000000000000  0000000000000000  0000000000103000  ffc0000000000000
16-19  00000029abefa7d0  0000000000000000  000000004011e768  000000000ea050d6
20-23  00000000a634400f  00000000c0000008  000000000804000f  0000000000000000
24-27  00000000004c6000  000000003ecae000  ffffffffffffffff  00000000400017e0
28-31  00000000400017e0  ffffffffffffffff  000000007fbb8000  0000000040554000

Space Registers 0 - 7
00-03  0000000000001800  0000000000000000  0000000000000000  0000000000001800
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x000000004011e76c
Check Type                   = 0x20000000
Cpu State                    = 0x9e000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00001800
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  00000000405614e0  00000000405969b8  000000000800000f  0000000000000000
08-11  00000000401cad28  000000007f4242e0  000000007f41fcb0  000000007f4243d0
12-15  0000000000000002  000000007f41fcb8  000000007f41fca8  00000000405614e0
16-19  0000000000000002  000000007f40c580  000000007d722e48  000000007f0082f8
20-23  00000000405614e0  000000007f406c78  0000000000000103  0000000000000000
24-27  0000000000000000  000000000080bfc6  0000000000000000  0000000000000802
28-31  00000000405614e0  ffffffffffffff9c  0000000040445520  00000000401bcb98

PIM Revision                 = 0x0000000000000001
CPU ID                       = 0x0000000000000014
CPU Revision                 = 0x0000000000000031
Cpu Serial Number            = 0x46100b89e43f0503
Check Summary                = 0x8040004000000000
SAL Timestamp                = 0x000000004a018113
System Firmware Rev.         = 0x00000b4b0000119f
PDC Relocation Address       = 0xfffffff0f0c00000
Available Memory             = 0x000000027fe00000
CPU Diagnose Register 2      = 0x3112022000002008
MIB_STAT                     = 0x0040000000200000
MIB_LOG1                     = 0x0000000000555500
MIB_LOG2                     = 0x0000800000000000
MIB_ECC_DATA                 = 0x808800007fffbfd8
ICache Info                  = 0x0000000000000000
DCache Info                  = 0x0000000000000000
Sharedcache Info1            = 0x0000000000000000
Sharedcache Info2            = 0x0000000000000040
MIB_RSLOG1                   = 0x0000100000000004
MIB_RSLOG2                   = 0x0020010000000000
MIB_RQLOG                    = 0x021001f8011f1530
MIB_REQLOGa                  = 0x8000080000000300
MIB_REQLOGb                  = 0x01000aa400000000
Reserved                     = 0x0000000000000000
Cache Repair Detail          = 0x0000000000000000

000000004011dc80 <handle_unaligned>:
    4011dc80:   0f c2 12 c1     std rp,-10(sp)
    ...
000000004011e734 <L3^B18>:
    4011e734:   e8 1f 11 65     b,l 4011dfec <L3^B2+0x20>,r0
    4011e738:   db 85 0f e0     extrd,s ret0,63,32,r5
    4011e73c:   9f fc 20 10     cmpb,*= ret0,r31,4011e74c <L3^B18+0x18>
    4011e740:   36 7c 22 00     ldo 1100(r19),ret0
    4011e744:   bf fc 31 45     cmpb,*<> ret0,r31,4011dfec <L3^B2+0x20>
    4011e748:   34 05 3f ff     ldi -1,r5
    4011e74c:   34 16 00 00     ldi 0,r22
    4011e750:   50 75 05 40     ldd 2a0(r3),r21
    4011e754:   50 7f 05 30     ldd 298(r3),r31
    4011e758:   db 37 0b fb     extrd,u r25,63,5,r23
    4011e75c:   f2 75 00 7d     depd,z r21,60,3,r19
    4011e760:   00 1f 58 20     mtsp r31,sr1
    4011e764:   f2 a0 04 1d     depd r0,63,3,r21
    4011e768:   0e a0 50 d6     ldd 0(sr1,r21),r22
    4011e76c:   0e b0 50 d4     ldd 8(sr1,r21),r20
    4011e770:   96 73 00 80     subi 40,r19,r19
    4011e774:   01 73 18 40     mtsar r19
    4011e778:   d2 96 02 16     shrpd r22,r20,sar,r22
    4011e77c:   08 00 02 5c     copy r0,ret0

Main Menu: Enter command or menu > bo
Interact with IPL (Y, N, or Cancel)?> n

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.14 root@penalosa Wed Oct  8 15:04:37 UTC 2008

Partition Start(MB) End(MB) Id Type
1               1     101   f0 Palo
2             102    1082   82 swap
3            1083   34726   83 ext2

PALO(F0) partition contains:
PALO is formatted EXT2/3
Command line for kernel: 'root=/dev/sda3 panic=5 console=ttyS1 palo_kernel=1/vmlinux'
Selected kernel: /vmlinux from partition 1
Selected ramdisk: /initrd.img from partition 1
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 3997696 mediaptr 0x1000
Segment 1 load 0051c000 size 508416 mediaptr 0x3d1000
Loading ramdisk 6052334 bytes @ 3fa29000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.30-rc4 (root@mx3210) (gcc version 4.3.3 (GCC) ) #2 Wed May 6 07:58:24 EDT 2009
unwind_init: start = 0x40410004, end = 0x40434f64, entries = 9462
WARNING: Out of order unwind entry! 0000000040411a24 and 0000000040411a34
WARNING: Out of order unwind entry! 0000000040411a34 and 0000000040411a44
FP[0] enabled: Rev 1 Model 20
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00008870 00000491 00000000 00000002 3e0505e7352af711 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 20 rev 4 (0x00000284)
capabilities 0x35
model 9000/800/rp3440
parisc_cache_init: Only equivalent aliasing supported!
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
 1) Start 0x0000000100000000 End 0x000000027fdfffff Size   6142 MB
 2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
Total Memory: 10238 MB
initrd: 7fa29000-7ffee9ee
initrd: reserving 3fa29000-3ffee9ee (mem_max 27fe00000)
Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 2585095
Kernel command line: root=/dev/sda3 panic=5 console=ttyS1 palo_kernel=1/vmlinux
NR_IRQS:128
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 160x64
------------------------
| Locking API testsuite:
----------------------------------------------------------------------------
		    | spin |wlock |rlock |mutex | wsem | rsem |

  --------------------------------------------------------------------------
	      A-A deadlock:failed|failed|  ok  |failed|failed|failed|
	  A-B-B-A deadlock:failed|failed|  ok  |failed|failed|failed|
      A-B-B-C-C-A deadlock:failed|failed|  ok  |failed|failed|failed|
      A-B-C-A-B-C deadlock:failed|failed|  ok  |failed|failed|failed|
	 A-B-B-C-C-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
	 A-B-C-D-B-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
	 A-B-C-D-B-C-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
	            double unlock:failed|failed|failed|  ok  |failed|failed|
		  initialize held:failed|failed|failed|failed|failed|failed|
		 bad unlock order:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
  --------------------------------------------------------------------------
	      recursive read-lock:             |  ok  |             |failed|
	   recursive read-lock #2:             |  ok  |             |failed|
	    mixed read-write-lock:             |failed|             |failed|
	    mixed write-read-lock:             |failed|             |failed|
  --------------------------------------------------------------------------
     hard-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     hard-irqs-on + irq-safe-A/21:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/21:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/12:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/21:failed|failed|  ok  |
         hard-safe-A + irqs-on/12:failed|failed|  ok  |
         soft-safe-A + irqs-on/12:failed|failed|  ok  |
         hard-safe-A + irqs-on/21:failed|failed|  ok  |
         soft-safe-A + irqs-on/21:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/321:failed|failed|  ok  |
      hard-irq lock-inversion/123:failed|failed|  ok  |
      soft-irq lock-inversion/123:failed|failed|  ok  |
      hard-irq lock-inversion/132:failed|failed|  ok  |
      soft-irq lock-inversion/132:failed|failed|  ok  |
      hard-irq lock-inversion/213:failed|failed|  ok  |
      soft-irq lock-inversion/213:failed|failed|  ok  |
      hard-irq lock-inversion/231:failed|failed|  ok  |
      soft-irq lock-inversion/231:failed|failed|  ok  |
      hard-irq lock-inversion/312:failed|failed|  ok  |
      soft-irq lock-inversion/312:failed|failed|  ok  |
      hard-irq lock-inversion/321:failed|failed|  ok  |
      soft-irq lock-inversion/321:failed|failed|  ok  |
      hard-irq read-recursion/123:  ok  |
      soft-irq read-recursion/123:  ok  |
      hard-irq read-recursion/132:  ok  |
      soft-irq read-recursion/132:  ok  |
      hard-irq read-recursion/213:  ok  |
      soft-irq read-recursion/213:  ok  |
      hard-irq read-recursion/231:  ok  |
      soft-irq read-recursion/231:  ok  |
      hard-irq read-recursion/312:  ok  |
      soft-irq read-recursion/312:  ok  |
      hard-irq read-recursion/321:  ok  |
      soft-irq read-recursion/321:  ok  |
--------------------------------------------------------
144 out of 218 testcases failed, as expected. |
----------------------------------------------------
Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)
Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Memory: 10282876k/10483712k available (2531k kernel code, 199328k reserved, 1324k data, 164k init)
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x0000004140000000   (266240 MB)
      .init : 0x0000000040570000 - 0x0000000040599000   ( 164 kB)
      .data : 0x0000000040378d20 - 0x00000000404c4000   (1324 kB)
      .text : 0x0000000040100000 - 0x0000000040378d20   (2531 kB)
Calibrating delay loop... 1597.44 BogoMIPS (lpj=3194880)
Mount-cache hash table entries: 256
net_namespace: 1304 bytes
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Storm Peak Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x887, 0x00004 }
2. Storm Peak Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x887, 0x00004 }
3. Storm Peak Slow at 0xfffffffffe798000 [152] { 0, 0x0, 0x887, 0x00004 }
4. Storm Peak Slow at 0xfffffffffe799000 [153] { 0, 0x0, 0x887, 0x00004 }
5. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
8. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
9. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
10. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
11. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
12. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
13. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
14. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 129 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 152 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 153 failed with error 1
CPU(s): 1 x PA8800 (Mako) at 800.007300 MHz
Setting cache flush threshold to 14e6240 (1 CPUs online)
SBA found Pluto 2.3 at 0xfffffffffed00000
Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
pci 0000:00:01.0: PME# supported from D0 D1 D2 D3hot
pci 0000:00:01.0: PME# disabled
pci 0000:00:01.1: PME# supported from D0 D1 D2 D3hot
pci 0000:00:01.1: PME# disabled
pci 0000:00:01.2: PME# supported from D0 D1 D2 D3hot
pci 0000:00:01.2: PME# disabled
Mercury version TR3.2 (0x32) found at 0xfffffffffed22000
pci 0000:20:02.0: PME# supported from D3hot D3cold
pci 0000:20:02.0: PME# disabled
Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
Mercury version TR3.2 (0x32) found at 0xfffffffffed28000
Mercury version TR3.2 (0x32) found at 0xfffffffffed2c000
Mercury version TR3.2 (0x32) found at 0xfffffffffed2e000
LBA: Truncating lmmio_space [fffffffff0000000/fffffffffecffffe] to [fffffffff0000000,fffffffffe77ffff]
powersw: Soft power switch support not available.
bio: create slab <bio-0> at 0
NET: Registered protocol family 2
IP route cache hash table entries: 524288 (order: 10, 4194304 bytes)
TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
NET: Registered protocol family 1
checking if image is initramfs...
rootfs image is initramfs; unpacking...
Freeing initrd memory: 5910k freed
Performance monitoring counters enabled for Storm Peak Slow
Initializing RT-Tester: OK
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
msgmni has been set to 20098
alg: No test for stdrng (krng)
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
Linux agpgart interface v0.103
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 72) is a 16550A
0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 72) is a 16550A
console handover: boot [ttyB0] -> real [ttyS1]
0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 72) is a 16550A
0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 72) is a 16550A
brd: module loaded
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
mice: PS/2 mouse device common for all mice
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
TCP cubic registered
rtc-generic rtc-generic: setting system clock to 2009-05-06 12:22:08 UTC (1241612528)
Freeing unused kernel memory: 164k freed
Loading, please wait...
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... SCSI subsystem initialized
sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 69
sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
scsi 0:0:0:0: Direct-Access     HP 36.4G ST336753LC       HPC3 PQ: 0 ANSI: 3
 target0:0:0: tagged command queuing enabled, command queue depth 16.
 target0:0:0: Beginning Domain Validation
 target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
 target0:0:0: Ending Domain Validation
tg3.c:v3.98 (February 25, 2009)
tg3 0000:20:02.0: PME# disabled
eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:30:6e:4b:16:4d
eth0: attached PHY is 5701 (10/100/1000Base-T Ethernet) (WireSpeed[1])
eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[0]
eth0: dma_rwctrl[76ff2d0f] dma_mask[32-bit]
sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 70
sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.2.3
scsi 1:0:2:0: Direct-Access     FUJITSU  MAJ3364MC        HP12 PQ: 0 ANSI: 2
 target1:0:2: tagged command queuing enabled, command queue depth 16.
 target1:0:2: Beginning Domain Validation
 target1:0:2: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
 target1:0:2: Ending Domain Validation
Driver 'sd' needs updating - please use bus_type methods
sd 0:0:0:0: [sda] 71132960 512-byte hardware sectors: (36.4 GB/33.9 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 1:0:2:0: [sdb] Write Protect is off
sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
sd 1:0:2:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA
 sda:<6> sdb: sda1 sda2 sda3
sd 0:0:0:0: [sda] Attached SCSI disk
 unknown partition table
sd 1:0:2:0: [sdb] Attached SCSI disk
done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... done.



Firmware Version  45.11

Duplex Console IO Dependent Code (IODC) revision 1


--X1bOJ3K7DJ5YkBrT--
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From - Thu Nov 08 21:04:14 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Fixed strace [ was Re: ls -l is broken ]
Date: Wed, 6 May 2009 12:25:22 -0400
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Cc: Kyle McMartin <kyle@mcmartin.ca>, matthew@wil.cx,
	linux-parisc@vger.kernel.org, debian-hppa@lists.debian.org
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Wed, May 06, 2009 at 12:19:37PM -0400, John David Anglin wrote:
> > On Tue, May 05, 2009 at 03:46:57PM -0400, John David Anglin wrote:
> > > > On Tue, May 05, 2009 at 03:09:50PM -0400, John David Anglin wrote:
> > > > > Probably, the cast should be to int.  __canonicalize_funcptr_for_compare
> > > > > isn't used in the 64-bit runtime.
> > > > > 
> > > > > Still, I'm not sure why this fixed the problem as
> > > > > __canonicalize_funcptr_for_compare checks for -1.
> > > > > 
> > > > 
> > > > If we cast both sides to int, then we don't generate a call there...
> > > 
> > > That will certainly fix the problem but I'd really like to know
> > > why we get a segv.  I suspect we are not handling a deferred function
> > > pointer correctly.
> > > 
> > 
> > At a guess, you're probably right, the faulting insn is a load:
> > 
> > 0x0002b3a8 <__canonicalize_funcptr_for_compare+48>:	bb,>= r26,1e,0x2b394 <__canonicalize_funcptr_for_compare+28>
> > 0x0002b3ac <__canonicalize_funcptr_for_compare+52>:	copy r26,r3
> > 0x0002b3b0 <__canonicalize_funcptr_for_compare+56>:	addil L%800,dp,r1
> > 0x0002b3b4 <__canonicalize_funcptr_for_compare+60>:	ldw 294(r1),ret1
> > 0x0002b3b8 <__canonicalize_funcptr_for_compare+64>:	depwi 0,31,2,r3
> > 0x0002b3bc <__canonicalize_funcptr_for_compare+68>:	ldw 0(r3),r26
> > 
> > god knows I can't recall how DEP*I work, but I guess this is clearing
> > the bottom two bits of %r3 if bit 31 is set in %r26?
> > 
> > (gdb) p/x $r3 
> > $3 = 0x407d2f18
> > (gdb) p/x $r26
> > $4 = 0x407d2f1a
> > 
> > This looks like the sigaction handler, (it appears __canon..._compare
> > detects -1 already.)
> 
> This all seems correct.  r3 should be pointing to a function descriptor
> for the sigaction handler (plabel bit is set).  What is the interruption
> generated by the ldw at 0x0002b3bc?
> 

The tombstone is:

do_page_fault() pid=10205 command='strace' type=15 address=0x407d2f18
vm_start = 0x4068d000, vm_end = 0x4068f000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011 Not tainted
r00-03  000000ff0004ff0b 0000000000040aec 0000000000025fef
00000000407d2f18
r04-07  0000000000000004 000000000004e060 000000000004b0c0
0000000000040aec
r08-11  00000000bff84254 000000000004b0b8 0000000000040300
0000000000040db8
r12-15  0000000000042aec 0000000000042eec 0000000000040aec
000000000004b0b0
r16-19  000000000004b0a8 0000000000040db0 0000000000042dec
000000004068af74
r20-23  0000000000000000 00000000405bf940 0000000000000000
00000000bff84608
r24-27  0000000000000004 00000000bff84588 00000000407d2f1a
00000000000402ec
r28-31  0000000000000fff 0000000000040d70 00000000bff845c0
000000004061033f
sr00-03  0000000007acc800 00000000003ee000 0000000000000000
0000000007acc800
sr04-07  0000000007acc800 0000000007acc800 0000000007acc800
0000000007acc800

IASQ: 0000000007acc800 0000000007acc800 IAOQ: 000000000002b3bf
000000000002b3c3
 IIR: 0c60109a    ISR: 0000000007acc800  IOR: 00000000407d2f18
 CPU:        3   CR30: 000000007da88000 CR31: fffffff0f0e098e0
 ORIG_R28: 00000000bff84608
 IAOQ[0]: 000000000002b3bf
 IAOQ[1]: 000000000002b3c3
 RP(r2): 0000000000025fef


cheers, Kyle
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From - Thu Nov 08 21:04:14 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Fixed strace [ was Re: ls -l is broken ]
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> The tombstone is:
> 
> do_page_fault() pid=10205 command='strace' type=15 address=0x407d2f18
> vm_start = 0x4068d000, vm_end = 0x4068f000

So, the pointer passed to __canonicalize_funcptr_for_compare is outside
the vm range.

Maybe "info sharedlib" will show something.  Need to find out why the
address of the function descriptor is outside the vm range.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:14 2018
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On Wed, May 06, 2009 at 01:39:49PM -0400, John David Anglin wrote:
> > The tombstone is:
> > 
> > do_page_fault() pid=10205 command='strace' type=15 address=0x407d2f18
> > vm_start = 0x4068d000, vm_end = 0x4068f000
> 
> So, the pointer passed to __canonicalize_funcptr_for_compare is outside
> the vm range.
> 
> Maybe "info sharedlib" will show something.  Need to find out why the
> address of the function descriptor is outside the vm range.
> 

405c0000-405c2000 rwxp 405c0000 00:00 0 

is the output of /proc/maps there... No idea wtf this is. :/

regards, Kyle
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> On Wed, May 06, 2009 at 01:39:49PM -0400, John David Anglin wrote:
> > > The tombstone is:
> > > 
> > > do_page_fault() pid=10205 command='strace' type=15 address=0x407d2f18
> > > vm_start = 0x4068d000, vm_end = 0x4068f000
> > 
> > So, the pointer passed to __canonicalize_funcptr_for_compare is outside
> > the vm range.
> > 
> > Maybe "info sharedlib" will show something.  Need to find out why the
> > address of the function descriptor is outside the vm range.
> > 
> 
> 405c0000-405c2000 rwxp 405c0000 00:00 0 

The function pointer address is also outside this range.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:14 2018
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On Thu, May 07, 2009 at 01:41:03PM -0400, John David Anglin wrote:
> > On Wed, May 06, 2009 at 01:39:49PM -0400, John David Anglin wrote:
> > > > The tombstone is:
> > > > 
> > > > do_page_fault() pid=10205 command='strace' type=15 address=0x407d2f18
> > > > vm_start = 0x4068d000, vm_end = 0x4068f000
> > > 
> > > So, the pointer passed to __canonicalize_funcptr_for_compare is outside
> > > the vm range.
> > > 
> > > Maybe "info sharedlib" will show something.  Need to find out why the
> > > address of the function descriptor is outside the vm range.
> > > 
> > 
> > 405c0000-405c2000 rwxp 405c0000 00:00 0 
> 
> The function pointer address is also outside this range.
> 

Sorry, this was with a rebuilt binary, and it lies within this range.

cheers, Kyle
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From - Thu Nov 08 21:04:14 2018
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> On Thu, May 07, 2009 at 01:41:03PM -0400, John David Anglin wrote:
> > > On Wed, May 06, 2009 at 01:39:49PM -0400, John David Anglin wrote:
> > > > > The tombstone is:
> > > > > 
> > > > > do_page_fault() pid=10205 command='strace' type=15 address=0x407d2f18
> > > > > vm_start = 0x4068d000, vm_end = 0x4068f000
> > > > 
> > > > So, the pointer passed to __canonicalize_funcptr_for_compare is outside
> > > > the vm range.
> > > > 
> > > > Maybe "info sharedlib" will show something.  Need to find out why the
> > > > address of the function descriptor is outside the vm range.
> > > > 
> > > 
> > > 405c0000-405c2000 rwxp 405c0000 00:00 0 
> > 
> > The function pointer address is also outside this range.
> > 
> 
> Sorry, this was with a rebuilt binary, and it lies within this range.

It's marked rwxp, so why the fault?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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From - Thu Nov 08 21:04:14 2018
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On Thu, 2009-05-07 at 14:41 -0400, John David Anglin wrote:
> > On Thu, May 07, 2009 at 01:41:03PM -0400, John David Anglin wrote:
> > > > On Wed, May 06, 2009 at 01:39:49PM -0400, John David Anglin wrote:
> > > > > > The tombstone is:
> > > > > > 
> > > > > > do_page_fault() pid=10205 command='strace' type=15 address=0x407d2f18
> > > > > > vm_start = 0x4068d000, vm_end = 0x4068f000
> > > > > 
> > > > > So, the pointer passed to __canonicalize_funcptr_for_compare is outside
> > > > > the vm range.
> > > > > 
> > > > > Maybe "info sharedlib" will show something.  Need to find out why the
> > > > > address of the function descriptor is outside the vm range.
> > > > > 
> > > > 
> > > > 405c0000-405c2000 rwxp 405c0000 00:00 0 
> > > 
> > > The function pointer address is also outside this range.
> > > 
> > 
> > Sorry, this was with a rebuilt binary, and it lies within this range.
> 
> It's marked rwxp, so why the fault?

That's a bit fascinating ... it means we got into the bad_area: goto of
do_page_fault() somehow even though the vma apparently allowed the fault
and we should have been able to page it in.  Something like this might
explain a lot of our stability problems.

James


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From - Thu Nov 08 21:04:14 2018
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On Thu, May 07, 2009 at 09:06:44PM +0000, James Bottomley wrote:
> On Thu, 2009-05-07 at 14:41 -0400, John David Anglin wrote:
> > > On Thu, May 07, 2009 at 01:41:03PM -0400, John David Anglin wrote:
> > > > > On Wed, May 06, 2009 at 01:39:49PM -0400, John David Anglin wrote:
> > > > > > > The tombstone is:
> > > > > > > 
> > > > > > > do_page_fault() pid=10205 command='strace' type=15 address=0x407d2f18
> > > > > > > vm_start = 0x4068d000, vm_end = 0x4068f000
> > > > > > 
> > > > > > So, the pointer passed to __canonicalize_funcptr_for_compare is outside
> > > > > > the vm range.
> > > > > > 
> > > > > > Maybe "info sharedlib" will show something.  Need to find out why the
> > > > > > address of the function descriptor is outside the vm range.
> > > > > > 
> > > > > 
> > > > > 405c0000-405c2000 rwxp 405c0000 00:00 0 
> > > > 
> > > > The function pointer address is also outside this range.
> > > > 
> > > 
> > > Sorry, this was with a rebuilt binary, and it lies within this range.
> > 
> > It's marked rwxp, so why the fault?
> 
> That's a bit fascinating ... it means we got into the bad_area: goto of
> do_page_fault() somehow even though the vma apparently allowed the fault
> and we should have been able to page it in.  Something like this might
> explain a lot of our stability problems.
> 

Sadly, I can't seem to reproduce this right now, because strace is dying
with the ptrace issue JDA brought up earlier. I'll poke at it more
tonight, but I want to get caught up on the merging first.

cheers, Kyle
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> Sadly, I can't seem to reproduce this right now, because strace is dying
> with the ptrace issue JDA brought up earlier. I'll poke at it more
> tonight, but I want to get caught up on the merging first.
>
> cheers, Kyle
>   
Kyle suggested I mention atrace to the strace developers. Maybe others 
here are interested:

http://sourceforge.net/mailarchive/forum.php?thread_name=4A04EB4A.5030204%40tausq.org&forum_name=strace-devel

For all I know, atrace is also horribly broken, but at least it seems to 
be able to trace "ls -l"   :-)

randolph
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> On Wed, May 06, 2009 at 01:39:49PM -0400, John David Anglin wrote:
> > > The tombstone is:
> > > 
> > > do_page_fault() pid=10205 command='strace' type=15 address=0x407d2f18
> > > vm_start = 0x4068d000, vm_end = 0x4068f000
> > 
> > So, the pointer passed to __canonicalize_funcptr_for_compare is outside
> > the vm range.
> > 
> > Maybe "info sharedlib" will show something.  Need to find out why the
> > address of the function descriptor is outside the vm range.
> > 
> 
> 405c0000-405c2000 rwxp 405c0000 00:00 0 
> 
> is the output of /proc/maps there... No idea wtf this is. :/

What are vm_start and vm_end?

Another segv last night.

Core was generated by `rm -f ada/bldtools/nmake_s/sinfo.ads ada/bldtools/nmake_s/nmake.adt ada/bldtool'.
Program terminated with signal 11, Segmentation fault.
[New process 12287]
#0  _dl_relocate_object (scope=0x40000db8, lazy=<value optimized out>, 
    consider_profiling=0) at do-rel.h:119
119	do-rel.h: No such file or directory.
	in do-rel.h

(gdb) p/x $pc
$1 = 0x402759ac

0x40275980 <_dl_relocate_object+728>:	ldw 4(ret0),r17
0x40275984 <_dl_relocate_object+732>:	ldw 4(r9),r21
0x40275988 <_dl_relocate_object+736>:	extrw,u r21,23,24,r22
0x4027598c <_dl_relocate_object+740>:	depw,z r22,27,28,r13
0x40275990 <_dl_relocate_object+744>:	ldw 0(r9),r20
0x40275994 <_dl_relocate_object+748>:	add,l r16,r13,r8
0x40275998 <_dl_relocate_object+752>:	stw r8,8(r3)
0x4027599c <_dl_relocate_object+756>:	add,l r12,r20,r10
0x402759a0 <_dl_relocate_object+760>:	ldb c(r8),ret0
0x402759a4 <_dl_relocate_object+764>:	extrw,u r21,31,8,r6
---Type <return> to continue, or q <return> to quit---
0x402759a8 <_dl_relocate_object+768>:	extrw,u ret0,27,28,ret0
0x402759ac <_dl_relocate_object+772>:	ldh,s r22(r17),r31
0x402759b0 <_dl_relocate_object+776>:	ldw 170(r11),ret1
0x402759b4 <_dl_relocate_object+780>:	cmpib,= 0,ret0,0x40275a64 <_dl_relocate_object+956>
0x402759b8 <_dl_relocate_object+784>:	copy r11,r5
End of assembler dump.
(gdb) p/x $r11
$3 = 0x40000c00
(gdb) p/x $r11 + 0xe4
$4 = 0x40000ce4
(gdb) x/x 0x40000ce4 
0x40000ce4:	0x4071e828
(gdb) x/x 0x4071e828 + 4
0x4071e82c <.LC2+200>:	0xa38cf763

(gdb) p/x $r22
$6 = 0x1

May  8 22:39:41 mx3210 kernel: do_page_fault() pid=12287 command='rm' type=15 address=0xa38cf765
May  8 22:39:41 mx3210 kernel: vm_start = 0x40724000, vm_end = 0x40726000

So, the address for ldh,s matches that in the tombstone.

...
002ae000-005f5000 rwxp 002ae000 00:00 0                                  [heap]
40000000-4000c000 rw-p 40000000 00:00 0 
4000c000-40011000 r-xp 00000000 08:03 640603                             /lib/libthread_db-1.0.so
...
4066d000-40670000 rwxp 0007a000 08:03 641636                             /lib/libm-2.9.so
40670000-4073d000 rw-p 4028d000 00:00 0 
...
40b26000-410fe000 rw-p 40b26000 00:00 0 
c0215000-c022a000 rwxp c0215000 00:00 0                                  [stack]

I don't see anything in /proc/maps that matches the vm range in the tombstone.

Comparing memory for the core dump with a normal start to main:

Core dump
(gdb) x/64x 0x4071e800
0x4071e800 <.LC2+156>:	0x6ffffffc	0x000129a8	0x6ffffffd	0x00000013
0x4071e810 <.LC2+172>:	0x0000001e	0x00000014	0x6ffffffe	0x00012c3c
0x4071e820 <.LC2+188>:	0x6fffffff	0x00000001	0x6ffffff0	0xa38cf763
0x4071e830 <.LC2+204>:	0x6ffffff9	0x00000d5b	0x00000000	0x00000000
0x4071e840 <.LC2+220>:	0x00000000	0x00000000	0x00000000	0x00000000
0x4071e850 <.LC2+236>:	0x00000000	0x00000000	0x00000000	0x00000000
0x4071e860 <__libc_multiple_libcs>:	0x00000001	0x00000000	0x00000000	0x00000000
0x4071e870 <__gconv_lock>:	0x00000000	0x00000000	0x00000000	0x00000000
0x4071e880 <__gconv_lock+16>:	0x00000001	0x00000001	0x00000001	0x00000001
0x4071e890 <__gconv_lock+32>:	0x00000000	0x00000000	0x00000000	0x00000000
0x4071e8a0 <lock.11041>:	0x00000000	0x00000000	0x00000000	0x00000000
0x4071e8b0 <lock.11041+16>:	0x00000001	0x00000001	0x00000001	---Type <return> to continue, or q <return> to quit---
0x00000001
0x4071e8c0 <lock.11041+32>:	0x00000000	0x00000000	0x00000000	0x00000000
0x4071e8d0 <lock>:	0x00000000	0x00000000	0x00000000	0x00000000
0x4071e8e0 <lock+16>:	0x00000001	0x00000001	0x00000001	0x00000001
0x4071e8f0 <lock+32>:	0x00000000	0x00000000	0x00000000	0x00000000

Normal:
(gdb) x/64x 0x4071e800
0x4071e800 <.LC2+156>:	0x6ffffffc	0x000129a8	0x6ffffffd	0x00000013
0x4071e810 <.LC2+172>:	0x0000001e	0x00000014	0x6ffffffe	0x00012c3c
0x4071e820 <.LC2+188>:	0x6fffffff	0x00000001	0x6ffffff0	0x405ea8cc
0x4071e830 <.LC2+204>:	0x6ffffff9	0x00000d5b	0x00000000	0x00000000
0x4071e840 <.LC2+220>:	0x00000000	0x00000000	0x00000000	0x00000000
0x4071e850 <.LC2+236>:	0x00000000	0x00000000	0x00000000	0x00000000
0x4071e860 <__libc_multiple_libcs>:	0x00000000	0x00000000	0x00000000	0x00000000
0x4071e870 <__gconv_lock>:	0x00000000	0x00000000	0x00000000	0x00000000
0x4071e880 <__gconv_lock+16>:	0x00000001	0x00000001	0x00000001	0x00000001
0x4071e890 <__gconv_lock+32>:	0x00000000	0x00000000	0x00000000	0x00000000
0x4071e8a0 <lock.11041>:	0x00000000	0x00000000	0x00000000	0x00000000
0x4071e8b0 <lock.11041+16>:	0x00000001	0x00000001	0x00000001

I sure looks as if memory has been stomped.  Specifically, the word that
caused the segv.  The surrounding values are the same.

Dave
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On Sat, May 9, 2009 at 1:18 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> 0x402759ac <_dl_relocate_object+772>: =A0 ldh,s r22(r17),r31
> 0x402759b0 <_dl_relocate_object+776>: =A0 ldw 170(r11),ret1
> 0x402759b4 <_dl_relocate_object+780>: =A0 cmpib,=3D 0,ret0,0x40275a64=
 <_dl_relocate_object+956>
> 0x402759b8 <_dl_relocate_object+784>: =A0 copy r11,r5
> End of assembler dump.
> (gdb) p/x $r11

Shouldn't you be using $r17 here?

Cheers,
Carlos.
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From - Thu Nov 08 21:04:15 2018
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Xref: news.gmane.org gmane.linux.debian.ports.hppa:5706 gmane.linux.ports.parisc:1684
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> 
> On Sat, May 9, 2009 at 1:18 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> > 0x402759ac <_dl_relocate_object+772>:  ldh,s r22(r17),r31
> > 0x402759b0 <_dl_relocate_object+776>:  ldw 170(r11),ret1
> > 0x402759b4 <_dl_relocate_object+780>:  cmpib,= 0,ret0,0x40275a64 <_dl_relocate_object+956>
> > 0x402759b8 <_dl_relocate_object+784>:  copy r11,r5
> > End of assembler dump.
> > (gdb) p/x $r11
> 
> Shouldn't you be using $r17 here?

Sorry, for the confusion.  I tried to demonstrate how $r17 was loaded
from memory starting from $r11.  You can see the load earlier in the
disassembly.  The values in $r22 and $r17 were consistent with the fault
address.  The value loaded from memory into $r17 was also consistent
with what was recorded in memory in the core dump.  It appeared to me
that only a single word was corrupted.

Unfortunately, gdb dropped core on the core file, so there's nothing
more that can be looked at.  This was caused by a malloc double free
error.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: segv in free() called from getgrgid()
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I had another segv this morning.  This one was on my c3750 running
64-bit 2.6.30-rc4.

Core was generated by `ls --color=auto -l'.
Program terminated with signal 11, Segmentation fault.
[New process 26322]
#0  0x405b7080 in free () from /lib/libc.so.6
(gdb) bt
#0  0x405b7080 in free () from /lib/libc.so.6
#1  0x405db534 in getgrgid () from /lib/libc.so.6
#2  0x0001cb34 in ?? ()
#3  0x00013854 in ?? ()
#4  0x00016e38 in ()
#5  0x000185c0 in main ()
(gdb) disass
Dump of assembler code for function free:
0x405b7024 <free+0>:	stw rp,-14(sp)
0x405b7028 <free+4>:	ldo 80(sp),sp
0x405b702c <free+8>:	addil L%1800,r19,r1
0x405b7030 <free+12>:	ldw 184(r1),ret0
0x405b7034 <free+16>:	stw r3,-6c(sp)
0x405b7038 <free+20>:	copy rp,r25
0x405b703c <free+24>:	stw r5,-74(sp)
0x405b7040 <free+28>:	stw r4,-70(sp)
0x405b7044 <free+32>:	stw r19,-20(sp)
0x405b7048 <free+36>:	ldw 0(ret0),r22
0x405b704c <free+40>:	cmpib,= 0,r22,0x405b7078 <free+84>
0x405b7050 <free+44>:	copy r26,r3
0x405b7054 <free+48>:	depwi 0,31,2,r25
0x405b7058 <free+52>:	b,l 0x405c2a74,r31
0x405b705c <free+56>:	copy r31,rp
0x405b7060 <free+60>:	ldw -94(sp),rp
0x405b7064 <free+64>:	ldw -74(sp),r5
0x405b7068 <free+68>:	ldw -70(sp),r4
0x405b706c <free+72>:	ldw -6c(sp),r3
0x405b7070 <free+76>:	bv r0(rp)
0x405b7074 <free+80>:	ldo -80(sp),sp
0x405b7078 <free+84>:	cmpib,= 0,r26,0x405b7060 <free+60>
0x405b707c <free+88>:	ldo -8(r26),r26
0x405b7080 <free+92>:	ldw 4(r26),r20
(gdb) p/x $r3
$2 = 0x40859008
(gdb) p/x $r26
$3 = 0x40859000

405b5000-405b8000 rwxp 0007a000 08:13 81660                              /lib/libm-2.7.so
40785000-40795000 r-xp 00000000 08:13 81661                              /lib/libpthread-0.10.so
40795000-40797000 rwxp 0000f000 08:13 81661                              /lib/libpthread-0.10.so
40797000-40859000 rwxp 00000000 00:00 0 
40942000-40a81000 r-xp 00000000 08:13 81635                              /lib/libc-2.7.so

Looking at getgrgid, it seems that the only time it calls free is when
the preceeding call to realloc fails.

  while (buffer != NULL
	 && (INTERNAL (REENTRANT_NAME) (ADD_VARIABLES, &resbuf, buffer,
					buffer_size, &result H_ERRNO_VAR)
	     == ERANGE)
#ifdef NEED_H_ERRNO
	 && h_errno_tmp == NETDB_INTERNAL
#endif
	)
    {
      char *new_buf;
      buffer_size *= 2;
      new_buf = (char *) realloc (buffer, buffer_size);
      if (new_buf == NULL)
	{
	  /* We are out of memory.  Free the current buffer so that the
	     process gets a chance for a normal termination.  */
	  free (buffer);
	   __set_errno (ENOMEM);
	}
      buffer = new_buf;
    }

The /proc/maps seems to indicate buffer is close to a region boundary.

0x405db510 <getgrgid+168>:	depw,z r25,30,31,r25
0x405db514 <getgrgid+172>:	ldw 0(r6),r26
0x405db518 <getgrgid+176>:	b,l 0x405c2b70,rp
0x405db51c <getgrgid+180>:	stw r25,0(r5)
0x405db520 <getgrgid+184>:	movb,<> ret0,r24,0x405db4e4 <getgrgid+124>
0x405db524 <getgrgid+188>:	copy r4,r19
0x405db528 <getgrgid+192>:	copy r19,r4
0x405db52c <getgrgid+196>:	b,l 0x405c2914,rp
0x405db530 <getgrgid+200>:	ldw 0(r6),r26
0x405db534 <getgrgid+204>:	stw r0,0(r6)

(gdb) p/x $r6
$4 = 0x406883cc
(gdb) x/x 0x406883cc
0x406883cc <buffer>:	0x40859008
(gdb) p/x $r5
$5 = 0x40689130
(gdb) x/x 0x40689130
0x40689130 <buffer_size.9811>:	0x00000000

  if (buffer == NULL)
    {
      buffer_size = BUFLEN;
      buffer = (char *) malloc (buffer_size);
    }

For some reason, I don't see the address of buffer or buffer_size in
the /proc/maps.  If buffer was corrupt in memory, then buffer_size would
be 0 as above.  I have to think there is a problem with vm regions.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hi

ab17c4f02156c4f75d7fa43a5aa2a7f942d47201 is the first bad commit
(reiserfs: fixup xattr_root caching)

Kernel panics when init tries to remount rootfs (reiserfs) with
read-write access.
Read-only access works fine.

No more messages on the screen before panic.

Is it endianess related?

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Alexander Beregalov wrote:
> Hi
> 
> ab17c4f02156c4f75d7fa43a5aa2a7f942d47201 is the first bad commit
> (reiserfs: fixup xattr_root caching)
> 
> Kernel panics when init tries to remount rootfs (reiserfs) with
> read-write access.
> Read-only access works fine.
> 
> No more messages on the screen before panic.
> 
> Is it endianess related?

No, not at all. There was a problem with the xattr code if the kernel
was built with xattrs disabled. It assumed that
REISERFS_SB(s)->xattr_root would be available, which isn't the case when
xattrs aren't enabled. Part of it has been cleaned up in -git1, and I've
sent Al some additional patches to fix the rest of it up.

There's a thread called "reiserfs xattr fixups" that contains 4 patches.
The patch marked with * is the one I believe will fix your problem.

- - reiserfs: cleanup ifdefs
- - reiserfs: deal with NULL xattr root w/ xattrs disabled *
- - reiserfs: fixup perms when xattrs are disabled
- - reiserfs: allow exposing privroot w/ xattrs enabled

- -Jeff

- --
Jeff Mahoney
SUSE Labs
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On Wed, May 06, 2009 at 12:04:42PM -0400, Kyle McMartin wrote:
...
> At a guess, you're probably right, the faulting insn is a load:
> 
> 0x0002b3a8 <__canonicalize_funcptr_for_compare+48>:	bb,>= r26,1e,0x2b394 <__canonicalize_funcptr_for_compare+28>
> 0x0002b3ac <__canonicalize_funcptr_for_compare+52>:	copy r26,r3
> 0x0002b3b0 <__canonicalize_funcptr_for_compare+56>:	addil L%800,dp,r1
> 0x0002b3b4 <__canonicalize_funcptr_for_compare+60>:	ldw 294(r1),ret1
> 0x0002b3b8 <__canonicalize_funcptr_for_compare+64>:	depwi 0,31,2,r3
> 0x0002b3bc <__canonicalize_funcptr_for_compare+68>:	ldw 0(r3),r26
> 
> god knows I can't recall how DEP*I work, but I guess this is clearing
> the bottom two bits of %r3 if bit 31 is set in %r26?

Wouldn't 1e == bit 30?

And yes, "depwi 0,31,2,XX"  is clearing the bottom 2 bits of XX.

I'm a bit confused about the ">=" conditional since only one bit is tested.
So is the copy only executed on branch not taken case?

grant
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2009/4/3 Kyle McMartin <kyle@mcmartin.ca>:
> On Fri, Apr 03, 2009 at 04:08:54PM +0400, Alexander Beregalov wrote:
>> Fix this build error when CONFIG_PROC_FS is not set:
>> drivers/parisc/ccio-dma.c:1574: error: 'ccio_proc_info_fops' undeclared
>>
>> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
>
> Applied to the fixes branch.

Hi Kyle.

It still fails with linux-next.

Could you please send it to Linus or ask Stephen to pull different
branch (with all latest changes) of your tree?

Thanks.
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2009/5/12 Jeff Mahoney <jeffm@suse.com>:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Alexander Beregalov wrote:
>> Hi
>>
>> ab17c4f02156c4f75d7fa43a5aa2a7f942d47201 is the first bad commit
>> (reiserfs: fixup xattr_root caching)
>>
>> Kernel panics when init tries to remount rootfs (reiserfs) with
>> read-write access.
>> Read-only access works fine.
>>
>> No more messages on the screen before panic.
>>
>> Is it endianess related?
>
> No, not at all. There was a problem with the xattr code if the kernel
> was built with xattrs disabled. It assumed that
> REISERFS_SB(s)->xattr_root would be available, which isn't the case when
> xattrs aren't enabled. Part of it has been cleaned up in -git1, and I've
> sent Al some additional patches to fix the rest of it up.
>
> There's a thread called "reiserfs xattr fixups" that contains 4 patches.
> The patch marked with * is the one I believe will fix your problem.
>
> - - reiserfs: cleanup ifdefs
> - - reiserfs: deal with NULL xattr root w/ xattrs disabled *
> - - reiserfs: fixup perms when xattrs are disabled
> - - reiserfs: allow exposing privroot w/ xattrs enabled
>
It works!
Thanks Jeff.
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To: grundler@parisc-linux.org (Grant Grundler)
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> 
> On Wed, May 06, 2009 at 12:04:42PM -0400, Kyle McMartin wrote:
> ...
> > At a guess, you're probably right, the faulting insn is a load:
> > 
> > 0x0002b3a8 <__canonicalize_funcptr_for_compare+48>:	bb,>= r26,1e,0x2b394 <__canonicalize_funcptr_for_compare+28>
> > 0x0002b3ac <__canonicalize_funcptr_for_compare+52>:	copy r26,r3
> > 0x0002b3b0 <__canonicalize_funcptr_for_compare+56>:	addil L%800,dp,r1
> > 0x0002b3b4 <__canonicalize_funcptr_for_compare+60>:	ldw 294(r1),ret1
> > 0x0002b3b8 <__canonicalize_funcptr_for_compare+64>:	depwi 0,31,2,r3
> > 0x0002b3bc <__canonicalize_funcptr_for_compare+68>:	ldw 0(r3),r26
> > 
> > god knows I can't recall how DEP*I work, but I guess this is clearing
> > the bottom two bits of %r3 if bit 31 is set in %r26?
> 
> Wouldn't 1e == bit 30?

Yes.  This is the 'L' field in the procedure label layout.  Bit 31
is X field and reserved.

> And yes, "depwi 0,31,2,XX"  is clearing the bottom 2 bits of XX.
> 
> I'm a bit confused about the ">=" conditional since only one bit is tested.
> So is the copy only executed on branch not taken case?

The conditions for bb are unique.  The word conditions are < and >=.
The double word conditions are *< and *>=.  See Table D-15 on page D-9
in arch.

This code sequence is used for indirect calls (e.g., $$dyncall).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:16 2018
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From: Roel Kluin <roel.kluin@gmail.com>
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Subject: [PATCH] misplaced parenthesis?
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Fix misplaced parenthesis.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
I think this is what was intended? Note that this patch may affect
profiling.

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index bbda909..30207b0 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -405,7 +405,7 @@ byte_copy:
 
 unaligned_copy:
 	/* possibly we are aligned on a word, but not on a double... */
-	if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
+	if (likely(t1 & (sizeof(unsigned int)-1) == 0)) {
 		t2 = src & (sizeof(unsigned int) - 1);
 
 		if (unlikely(t2 != 0)) {
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From - Thu Nov 08 21:04:16 2018
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From: Dirk Van Hertem <dirk.vanhertem@ieee.org>
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Subject: Re: random freezes B2000 running debian hppa lenny
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This is a multi-part message in MIME format.
--------------000803000503010300030909
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

Dear Grant,
Dear linux-parisc enthousiasts,

Sorry for the late reply: in the last week, my vt220 terminal died and
the power supply of my old (i386) server died as well, so I was busy
with other things.

I attached the "ser pim" output to this email, I hope it helps. If you
need any other information, please ask, I hope I'll be more responsive
next time...

Dirk

Grant Grundler wrote:
> [ moved debian-hppa to BCC and added linux-parisc to CC ]
> 
> On Fri, May 01, 2009 at 05:08:59PM +0200, Dirk Van Hertem wrote:
>> hello,
>>
>> My hppa box (B2000) experiences some problems: it freezes after a few
>> (2-6) hours.
>>
>> On the led display I get the following error codes:
>>
>> FLT CBFC: SYS BD
>> bus timeout
>> OS HPMC bz err
>> Bad OS HPMC len
>> HPMC initiated
> 
> Hi Dirk,
> Given the PCI listing you gave below, I agree the HPMC is likely caused by
> the Promise SATA card.
> 
>> I don't have screen nor keyboard attached to it so debugging is a bit
>> difficult.
> 
> AFAIK, the only way to debug this is to capture the HPMC dump.
> The HPMC dump can only be capture via serial console. :(
> (ie run "ser pim" at PDC prompt from a terminal emulator like minicom)
> 
>> System:
>> Debian lenny (stable), rather clean install
>>
>> $ uname -a
>> Linux coulomb 2.6.26-2-parisc #1 Fri Mar 27 03:29:17 UTC 2009 parisc
>> GNU/Linux
>>
>>
>> The machines has the following lspci:
>>
>> 00:0c.0 Ethernet controller: Digital Equipment Corporation DECchip
>> 21142/43 (rev 41)
>> 00:0d.0 Multimedia audio controller: Analog Devices AD1889 sound chip
>> 00:0e.0 IDE interface: National Semiconductor Corporation 87415/87560
>> IDE (rev 03)
>> 00:0e.1 Bridge: National Semiconductor Corporation 87560 Legacy I/O (rev 01)
>> 00:0e.2 USB Controller: National Semiconductor Corporation USB
>> Controller (rev 02)
>> 00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53c895a (rev 01)
>> 01:00.0 3D controller: Hewlett-Packard Company Visualize FXe (rev 03)
>> 01:04.0 Mass storage controller: Promise Technology, Inc. PDC40718 (SATA
>> 300 TX4) (rev 02)
>>
>> Of which the last entry might well be the problem.
>>
>> This is a promise card for my 3* 1TB sata disks. They seem to be
>> initialized correctly, I made software raid with mdadm, but not I get
>> the following:
>>
>> $ cat /proc/mdstat
>> Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5]
>> [raid4] [raid10]
>> md0 : active raid5 sdc1[0] sde1[3] sdd1[1]
>>       1953519872 blocks level 5, 64k chunk, algorithm 2 [3/2] [UU_]
>>       [=>...................]  recovery =  5.8% (56795292/976759936)
>> finish=451.9min speed=33920K/sec
>>
>> unused devices: <none>
>>
>> This keeps on running for a few hours, until the machine gets unresponsive.
>>
>> I don't think I get anything strange in syslog, kernel.log, messages,...
>>
>> So, my questions:
>> * Is this sata promise card the fault?
> 
> Likely, yes.
> 
>> * on the web, the errors on the display seemed to indicate hardware
>> problems, but any insight on that?
> 
> HW caught the error. Unless this happens w/o Promise care present,
> I'm not inclined to believe this is a HW problem.
> 
>> * Best ways to solve this?
> 
> Capture "ser pim" output (aka PIM dump).
> 
>> * Did I forget something?
>>
>> Dirk
>>
>> PS: Next thing I'll try is to remove the promise card to see if that was
>> the problem
>> PPS: dmesg in attach
> 
> thanks!
> grant
> 
>> -- 
>> Dirk Van Hertem                       Dirk.VanHertem@esat.kuleuven.be
>> Electrical Engineering Department  http://www.esat.kuleuven.be/electa
>> K.U. Leuven, ESAT-ELECTA                         tel: +32-16-32.18.95
>> 10, Kasteelpark Arenberg, B-3001 Heverlee        fax: +32-16-32.19.85
> 
>> [    0.000000] Initializing cgroup subsys cpu
>> [    0.000000] Linux version 2.6.26-2-parisc (Debian 2.6.26-15) (dannf@debian.org) (gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-25)) #1 Fri Mar 27 03:29:17 UTC 2009
>> [    0.000000] FP[0] enabled: Rev 1 Model 16
>> [    0.000000] The 32-bit Kernel has started...
>> [    0.000000] console [ttyB0] enabled
>> [    0.000000] Initialized PDC Console for debugging.
>> [    0.000000] Determining PDC firmware type: System Map.
>> [    0.000000] model 00005d00 00000481 00000000 00000002 782d3480 100000f0 00000008 000000b2 000000b2
>> [    0.000000] vers  00000301
>> [    0.000000] CPUID vers 17 rev 11 (0x0000022b)
>> [    0.000000] capabilities 0x3
>> [    0.000000] model 9000/785/B2000
>> [    0.000000] Total Memory: 1024 MB
>> [    0.000000] initrd: 4f8ce000-4ffedfb5
>> [    0.000000] initrd: reserving 3f8ce000-3ffedfb5 (mem_max 40000000)
>> [    0.000000] On node 0 totalpages: 262144
>> [    0.000000]   Normal zone: 2048 pages used for memmap
>> [    0.000000]   Normal zone: 0 pages reserved
>> [    0.000000]   Normal zone: 260096 pages, LIFO batch:31
>> [    0.000000]   Movable zone: 0 pages used for memmap
>> [    0.000000] LCD display at f05d0008,f05d0000 registered
>> [    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260096
>> [    0.000000] Kernel command line: root=/dev/sdb5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
>> [    0.000000] PID hash table entries: 4096 (order: 12, 16384 bytes)
>> [17179569.184000] Console: colour dummy device 160x64
>> [17179569.248000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
>> [17179569.348000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
>> [17179569.532000] Memory: 1026560k/1048576k available (1961k kernel code, 21792k reserved, 882k data, 224k init)
>> [17179569.660000] virtual kernel memory layout:
>> [17179569.660000]     vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
>> [17179569.660000]     memory  : 0x10000000 - 0x50000000   (1024 MB)
>> [17179569.660000]       .init : 0x10410000 - 0x10448000   ( 224 kB)
>> [17179569.660000]       .data : 0x102ea6b4 - 0x103c7000   ( 882 kB)
>> [17179569.660000]       .text : 0x10100000 - 0x102ea6b4   (1961 kB)
>> [17179570.112000] Calibrating delay loop... 798.72 BogoMIPS (lpj=1597440)
>> [17179570.204000] Security Framework initialized
>> [17179570.260000] SELinux:  Disabled at boot.
>> [17179570.312000] Capability LSM initialized
>> [17179570.368000] Mount-cache hash table entries: 512
>> [17179570.428000] Initializing cgroup subsys ns
>> [17179570.484000] Initializing cgroup subsys cpuacct
>> [17179570.548000] Initializing cgroup subsys devices
>> [17179570.612000] net_namespace: 648 bytes
>> [17179570.660000] NET: Registered protocol family 16
>> [17179570.724000] EISA bus registered
>> [17179570.768000] Searching for devices...
>> [17179571.020000] Found devices:
>> [17179571.060000] 1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
>> [17179571.160000] 2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
>> [17179571.264000] 3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
>> [17179571.364000] 4. Kazoo W+ at 0xfffa0000 [32] { 0, 0x0, 0x5d0, 0x00004 }
>> [17179571.452000] 5. Memory at 0xfed10200 [49] { 1, 0x0, 0x09d, 0x00009 }
>> [17179571.536000] Enabling regular chassis codes support v0.05
>> [17179571.736000] CPU(s): 1 x PA8600 (PCX-W+) at 400.000000 MHz
>> [17179571.812000] Whole cache flush 115727 cycles, flushing 3440640 bytes 467519 cycles
>> [17179571.812000] Setting cache flush threshold to 1980 (1 CPUs online)
>> [17179571.920000] SBA found Astro 2.1 at 0xfed00000
>> [17179571.984000] Elroy version TR4.0 (0x5) found at 0xfed30000
>> [17179572.060000] PCI: Enabled native mode for NS87415 (pif=0x8f)
>> [17179572.140000] Elroy version TR4.0 (0x5) found at 0xfed32000
>> [17179572.232000] powersw: Soft power switch at 0xf0400804 enabled.
>> [17179572.324000] NET: Registered protocol family 2
>> [17179572.424000] IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
>> [17179572.520000] TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
>> [17179572.624000] TCP bind hash table entries: 65536 (order: 6, 262144 bytes)
>> [17179572.716000] TCP: Hash tables configured (established 131072 bind 65536)
>> [17179572.808000] TCP reno registered
>> [17179572.864000] NET: Registered protocol family 1
>> [17179572.924000] checking if image is initramfs... it is
>> [17179575.908000] Freeing initrd memory: 7295k freed
>> [17179575.976000] Enabling PDC chassis warnings support v0.05
>> [17179576.048000] unwind_init: start = 0x1035de10, end = 0x103850f0, entries = 10030
>> [17179576.144000] WARNING: Out of order unwind entry! 1035f810 and 1035f820
>> [17179576.232000] WARNING: Out of order unwind entry! 1035f820 and 1035f830
>> [17179576.324000] audit: initializing netlink socket (disabled)
>> [17179576.396000] type=2000 audit(1241188257.212:1): initialized
>> [17179576.472000] VFS: Disk quotas dquot_6.5.1
>> [17179576.528000] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
>> [17179576.620000] msgmni has been set to 2019
>> [17179576.676000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
>> [17179576.776000] io scheduler noop registered
>> [17179576.832000] io scheduler anticipatory registered
>> [17179576.896000] io scheduler deadline registered
>> [17179576.956000] io scheduler cfq registered (default)
>> [17179577.020000] SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 67) 
>> [17179577.120000] SuperIO: Serial port 1 at 0x3f8
>> [17179577.176000] SuperIO: Serial port 2 at 0x2f8
>> [17179577.236000] SuperIO: Parallel port at 0x378
>> [17179577.292000] SuperIO: Floppy controller at 0x3f0
>> [17179577.356000] SuperIO: ACPI at 0x7e0
>> [17179577.404000] SuperIO: USB regulator enabled
>> [17179577.464000] PDC Stable Storage facility v0.30
>> [17179577.836000] STI GSC/PCI core graphics driver Version 0.9a
>> [17179577.912000] sti 0000:01:00.0: enabling SERR and PARITY (0046 -> 0146)
>> [17179578.000000] STI PCI graphic ROM found at f4840000 (128 kB), fb at fb000000 (16 MB)
>> [17179578.228000]     id 35acda16-9a02587, conforms to spec rev. 8.0c
>> [17179578.312000]     graphics card name: HPA4982A
>> [17179578.368000] sticon: Initializing STI text console.
>> [17179578.436000] Console: switching to colour STI console 160x64
>> [17179578.788000] stifb: 'HPA4982A' (id: 0x35acda16) not supported.
>> [17179578.876000] Generic RTC Driver v1.07
>> [17179578.928000] Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
>> [17179579.036000] serial8250: ttyS0 at I/O 0x3f8 (irq = 3) is a 16550A
>> [17179579.116000] console handover: boot [ttyB0] -> real [ttyS0]
>> [17179579.192000] serial8250: ttyS1 at I/O 0x2f8 (irq = 4) is a 16550A
>> [17179579.276000] brd: module loaded
>> [17179579.316000] mice: PS/2 mouse device common for all mice
>> [17179579.384000] TCP cubic registered
>> [17179579.424000] NET: Registered protocol family 17
>> [17179579.484000] registered taskstats version 1
>> [17179579.536000] Freeing unused kernel memory: 224k freed
>> [17179580.348000] SCSI subsystem initialized
>> [17179581.996000] Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
>> [17179582.080000] tulip0: no phy info, aborting mtable build
>> [17179582.144000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
>> [17179582.248000] eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xf4005000, 00:30:6e:08:0a:7f, IRQ 65.
>> [17179582.544000] usbcore: registered new interface driver usbfs
>> [17179582.612000] usbcore: registered new interface driver hub
>> [17179582.704000] sym0: <895a> rev 0x1 at pci 0000:00:0f.0 irq 68
>> [17179582.804000] libata version 3.00 loaded.
>> [17179582.824000] sym0: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
>> [17179582.904000] sym0: SCSI BUS has been reset.
>> [17179582.964000] scsi0 : sym-2.2.3
>> [17179583.008000] usbcore: registered new device driver usb
>> [17179583.096000] ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver
>> [17179583.096000] ohci_hcd: block sizes: ed 64 td 64
>> [17179583.100000] ohci_hcd 0000:00:0e.2: OHCI Host Controller
>> [17179583.168000] ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
>> [17179583.260000] ohci_hcd 0000:00:0e.2: Using NSC SuperIO setup
>> [17179583.260000] ohci_hcd 0000:00:0e.2: created debug files
>> [17179583.260000] ohci_hcd 0000:00:0e.2: irq 1, io mem 0xf4004000
>> [17179583.384000] ohci_hcd 0000:00:0e.2: OHCI controller state
>> [17179583.384000] ohci_hcd 0000:00:0e.2: OHCI 1.0, NO legacy support registers
>> [17179583.384000] ohci_hcd 0000:00:0e.2: control 0x083 HCFS=operational CBSR=3
>> [17179583.384000] ohci_hcd 0000:00:0e.2: cmdstatus 0x00000 SOC=0
>> [17179583.384000] ohci_hcd 0000:00:0e.2: intrstatus 0x00000000
>> [17179583.384000] ohci_hcd 0000:00:0e.2: intrenable 0x8000001a MIE UE RD WDH
>> [17179583.384000] ohci_hcd 0000:00:0e.2: hcca frame #0000
>> [17179583.384000] ohci_hcd 0000:00:0e.2: roothub.a 00001003 POTPGT=0 NOCP NDP=3(3)
>> [17179583.384000] ohci_hcd 0000:00:0e.2: roothub.b 000e0000 PPCM=000e DR=0000
>> [17179583.384000] ohci_hcd 0000:00:0e.2: roothub.status 00008000 DRWE
>> [17179583.384000] ohci_hcd 0000:00:0e.2: roothub.portstatus [0] 0x00000100 PPS
>> [17179583.384000] ohci_hcd 0000:00:0e.2: roothub.portstatus [1] 0x00000100 PPS
>> [17179583.384000] ohci_hcd 0000:00:0e.2: roothub.portstatus [2] 0x00000100 PPS
>> [17179583.384000] usb usb1: default language 0x0409
>> [17179583.384000] usb usb1: uevent
>> [17179583.384000] usb usb1: usb_probe_device
>> [17179583.384000] usb usb1: configuration #1 chosen from 1 choice
>> [17179583.452000] usb usb1: adding 1-0:1.0 (config #1, interface 0)
>> [17179583.452000] usb 1-0:1.0: uevent
>> [17179583.452000] hub 1-0:1.0: usb_probe_interface
>> [17179583.452000] hub 1-0:1.0: usb_probe_interface - got id
>> [17179583.452000] hub 1-0:1.0: USB hub found
>> [17179583.500000] hub 1-0:1.0: 3 ports detected
>> [17179583.552000] hub 1-0:1.0: standalone hub
>> [17179583.552000] hub 1-0:1.0: ganged power switching
>> [17179583.552000] hub 1-0:1.0: no over-current protection
>> [17179583.552000] hub 1-0:1.0: power on to power good time: 0ms
>> [17179583.552000] hub 1-0:1.0: local power source is good
>> [17179583.552000] hub 1-0:1.0: enabling power on all ports
>> [17179583.656000] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
>> [17179583.740000] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
>> [17179583.828000] usb usb1: Product: OHCI Host Controller
>> [17179583.892000] usb usb1: Manufacturer: Linux 2.6.26-2-parisc ohci_hcd
>> [17179583.968000] usb usb1: SerialNumber: 0000:00:0e.2
>> [17179584.032000] sata_promise 0000:01:04.0: version 2.12
>> [17179584.032000] scsi1 : sata_promise
>> [17179584.112000] Uniform Multi-Platform E-IDE driver
>> [17179584.168000] ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
>> [17179584.268000] scsi2 : sata_promise
>> [17179584.312000] scsi3 : sata_promise
>> [17179584.352000] scsi4 : sata_promise
>> [17179584.396000] ata1: SATA max UDMA/133 mmio m4096@0xf4820000 ata 0xf4820380 irq 70
>> [17179584.484000] ata2: SATA max UDMA/133 mmio m4096@0xf4820000 ata 0xf4820280 irq 70
>> [17179584.576000] ata3: SATA max UDMA/133 mmio m4096@0xf4820000 ata 0xf4820200 irq 70
>> [17179584.668000] ata4: SATA max UDMA/133 mmio m4096@0xf4820000 ata 0xf4820300 irq 70
>> [17179584.760000] hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0000
>> [17179584.792000] NS87415: IDE controller (0x100b:0x0002 rev 0x03) at  PCI slot 0000:00:0e.0
>> [17179584.892000] NS87415: 100% native mode on irq 7
>> [17179584.948000]     ide0: BM-DMA at 0x0900-0x0907
>> [17179585.008000]     ide1: BM-DMA at 0x0908-0x090f
>> [17179585.060000] Probing IDE interface ide0...
>> [17179585.184000] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
>> [17179585.284000] ata1.00: ATA-8: Hitachi HDT721010SLA360, ST6OA31B, max UDMA/133
>> [17179585.368000] ata1.00: 1953525168 sectors, multi 0: LBA48 NCQ (depth 0/32)
>> [17179585.468000] ata1.00: configured for UDMA/133
>> [17179585.692000] hda: FX4830T, ATAPI CD/DVD-ROM drive
>> [17179585.856000] ata2: SATA link down (SStatus 0 SControl 300)
>> [17179586.240000] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
>> [17179586.340000] ata3.00: ATA-8: Hitachi HDT721010SLA360, ST6OA31B, max UDMA/133
>> [17179586.424000] ata3.00: 1953525168 sectors, multi 0: LBA48 NCQ (depth 0/32)
>> [17179586.524000] ata3.00: configured for UDMA/133
>> [17179586.692000] Probing IDE interface ide1...
>> [17179586.896000] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
>> [17179586.996000] ata4.00: ATA-8: Hitachi HDT721010SLA360, ST6OA31B, max UDMA/133
>> [17179587.080000] ata4.00: 1953525168 sectors, multi 0: LBA48 NCQ (depth 0/32)
>> [17179587.180000] ata4.00: configured for UDMA/133
>> [17179587.232000] scsi: waiting for bus probes to complete ...
>> [17179587.524000] ide0 at 0xe00-0xe07,0xd02 on irq 7
>> [17179587.580000] ide1 at 0xb00-0xb07,0xa02 on irq 7
>> [17179587.636000] scsi 0:0:5:0: Direct-Access     IBM      IC35L073UCDY10-0 S27T PQ: 0 ANSI: 3
>> [17179587.736000]  target0:0:5: tagged command queuing enabled, command queue depth 16.
>> [17179587.828000]  target0:0:5: Beginning Domain Validation
>> [17179587.892000]  target0:0:5: asynchronous
>> [17179587.944000]  target0:0:5: wide asynchronous
>> [17179587.996000]  target0:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
>> [17179588.084000]  target0:0:5: Domain Validation skipping write tests
>> [17179588.160000]  target0:0:5: Ending Domain Validation
>> [17179588.220000] scsi 0:0:6:0: Direct-Access     QUANTUM  ATLAS5-9LVD      HP04 PQ: 0 ANSI: 3
>> [17179588.320000]  target0:0:6: tagged command queuing enabled, command queue depth 16.
>> [17179588.412000]  target0:0:6: Beginning Domain Validation
>> [17179588.476000]  target0:0:6: asynchronous
>> [17179588.528000]  target0:0:6: wide asynchronous
>> [17179588.580000]  target0:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
>> [17179588.668000]  target0:0:6: Domain Validation skipping write tests
>> [17179588.744000]  target0:0:6: Ending Domain Validation
>> [17179591.132000] scsi 1:0:0:0: Direct-Access     ATA      Hitachi HDT72101 ST6O PQ: 0 ANSI: 5
>> [17179591.304000] scsi 3:0:0:0: Direct-Access     ATA      Hitachi HDT72101 ST6O PQ: 0 ANSI: 5
>> [17179591.440000] Driver 'sd' needs updating - please use bus_type methods
>> [17179591.608000] scsi 4:0:0:0: Direct-Access     ATA      Hitachi HDT72101 ST6O PQ: 0 ANSI: 5
>> [17179591.732000] sd 0:0:5:0: [sda] 143374650 512-byte hardware sectors (73408 MB)
>> [17179592.108000] sd 0:0:5:0: [sda] Write Protect is off
>> [17179592.168000] sd 0:0:5:0: [sda] Mode Sense: cb 00 00 08
>> [17179592.296000] hda: ATAPI 48X CD-ROM drive, 128kB Cache
>> [17179592.356000] Uniform CD-ROM driver Revision: 3.20
>> [17179592.524000] sd 0:0:5:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
>> [17179592.640000] sd 0:0:5:0: [sda] 143374650 512-byte hardware sectors (73408 MB)
>> [17179592.728000] sd 0:0:5:0: [sda] Write Protect is off
>> [17179592.788000] sd 0:0:5:0: [sda] Mode Sense: cb 00 00 08
>> [17179592.788000] sd 0:0:5:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
>> [17179592.904000]  sda: sda1
>> [17179592.964000] sd 0:0:5:0: [sda] Attached SCSI disk
>> [17179593.044000] sd 0:0:6:0: [sdb] 17773524 512-byte hardware sectors (9100 MB)
>> [17179593.140000] sd 0:0:6:0: [sdb] Write Protect is off
>> [17179593.204000] sd 0:0:6:0: [sdb] Mode Sense: e3 00 10 08
>> [17179593.232000] sd 0:0:6:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA
>> [17179593.348000] sd 0:0:6:0: [sdb] 17773524 512-byte hardware sectors (9100 MB)
>> [17179593.432000] sd 0:0:6:0: [sdb] Write Protect is off
>> [17179593.496000] sd 0:0:6:0: [sdb] Mode Sense: e3 00 10 08
>> [17179593.496000] sd 0:0:6:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA
>> [17179593.600000]  sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 sdb7 sdb8 > sdb4
>> [17179593.724000] sd 0:0:6:0: [sdb] Attached SCSI disk
>> [17179593.792000] sd 1:0:0:0: [sdc] 1953525168 512-byte hardware sectors (1000205 MB)
>> [17179593.884000] sd 1:0:0:0: [sdc] Write Protect is off
>> [17179593.944000] sd 1:0:0:0: [sdc] Mode Sense: 00 3a 00 00
>> [17179593.944000] sd 1:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>> [17179594.056000] sd 1:0:0:0: [sdc] 1953525168 512-byte hardware sectors (1000205 MB)
>> [17179594.148000] sd 1:0:0:0: [sdc] Write Protect is off
>> [17179594.208000] sd 1:0:0:0: [sdc] Mode Sense: 00 3a 00 00
>> [17179594.208000] sd 1:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>> [17179594.320000]  sdc: sdc1
>> [17179594.364000] sd 1:0:0:0: [sdc] Attached SCSI disk
>> [17179594.432000] sd 3:0:0:0: [sdd] 1953525168 512-byte hardware sectors (1000205 MB)
>> [17179594.520000] sd 3:0:0:0: [sdd] Write Protect is off
>> [17179594.584000] sd 3:0:0:0: [sdd] Mode Sense: 00 3a 00 00
>> [17179594.584000] sd 3:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>> [17179594.696000] sd 3:0:0:0: [sdd] 1953525168 512-byte hardware sectors (1000205 MB)
>> [17179594.784000] sd 3:0:0:0: [sdd] Write Protect is off
>> [17179594.844000] sd 3:0:0:0: [sdd] Mode Sense: 00 3a 00 00
>> [17179594.844000] sd 3:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>> [17179594.956000]  sdd: sdd1
>> [17179595.004000] sd 3:0:0:0: [sdd] Attached SCSI disk
>> [17179595.068000] sd 4:0:0:0: [sde] 1953525168 512-byte hardware sectors (1000205 MB)
>> [17179595.160000] sd 4:0:0:0: [sde] Write Protect is off
>> [17179595.220000] sd 4:0:0:0: [sde] Mode Sense: 00 3a 00 00
>> [17179595.220000] sd 4:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>> [17179595.332000] sd 4:0:0:0: [sde] 1953525168 512-byte hardware sectors (1000205 MB)
>> [17179595.424000] sd 4:0:0:0: [sde] Write Protect is off
>> [17179595.484000] sd 4:0:0:0: [sde] Mode Sense: 00 3a 00 00
>> [17179595.484000] sd 4:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>> [17179595.596000]  sde: sde1
>> [17179595.640000] sd 4:0:0:0: [sde] Attached SCSI disk
>> [17179596.980000] md: linear personality registered for level -1
>> [17179597.088000] md: multipath personality registered for level -4
>> [17179597.200000] md: raid0 personality registered for level 0
>> [17179597.312000] md: raid1 personality registered for level 1
>> [17179597.416000] xor: measuring software checksum speed
>> [17179597.496000]    8regs     :   943.000 MB/sec
>> [17179597.568000]    8regs_prefetch:   933.000 MB/sec
>> [17179597.644000]    32regs    :   960.000 MB/sec
>> [17179597.716000]    32regs_prefetch:   945.000 MB/sec
>> [17179597.772000] xor: using function: 32regs (960.000 MB/sec)
>> [17179597.848000] async_tx: api initialized (sync-only)
>> [17179598.012000] raid6: int32x1    183 MB/s
>> [17179598.128000] raid6: int32x2    230 MB/s
>> [17179598.244000] raid6: int32x4    272 MB/s
>> [17179598.360000] raid6: int32x8    213 MB/s
>> [17179598.408000] raid6: using algorithm int32x4 (272 MB/s)
>> [17179598.468000] md: raid6 personality registered for level 6
>> [17179598.536000] md: raid5 personality registered for level 5
>> [17179598.604000] md: raid4 personality registered for level 4
>> [17179598.896000] md: raid10 personality registered for level 10
>> [17179599.136000] md: bind<sdd1>
>> [17179599.172000] md: bind<sde1>
>> [17179599.208000] md: bind<sdc1>
>> [17179599.324000] raid5: device sdc1 operational as raid disk 0
>> [17179599.392000] raid5: device sdd1 operational as raid disk 1
>> [17179599.460000] raid5: allocated 3176kB for md0
>> [17179599.512000] raid5: raid level 5 set md0 active with 2 out of 3 devices, algorithm 2
>> [17179599.608000] RAID5 conf printout:
>> [17179599.648000]  --- rd:3 wd:2
>> [17179599.684000]  disk 0, o:1, dev:sdc1
>> [17179599.728000]  disk 1, o:1, dev:sdd1
>> [17179600.672000] EXT3-fs: INFO: recovery required on readonly filesystem.
>> [17179600.752000] EXT3-fs: write access will be enabled during recovery.
>> [17179601.128000] kjournald starting.  Commit interval 5 seconds
>> [17179601.196000] EXT3-fs: recovery complete.
>> [17179601.244000] EXT3-fs: mounted filesystem with ordered data mode.
>> [17179603.920000] udevd version 125 started
>> [17179604.124000] usb usb1: uevent
>> [17179604.124000] usb 1-0:1.0: uevent
>> [17179609.280000] Adding 489940k swap on /dev/sdb7.  Priority:-1 extents:1 across:489940k
>> [17179609.764000] EXT3 FS on sdb5, internal journal
>> [17179610.860000] LASI 82596 driver - Revision: 1.30
>> [17179610.980000] loop: module loaded
>> [17179616.900000] RAID5 conf printout:
>> [17179616.944000]  --- rd:3 wd:2
>> [17179616.980000]  disk 0, o:1, dev:sdc1
>> [17179617.024000]  disk 1, o:1, dev:sdd1
>> [17179617.072000]  disk 2, o:1, dev:sde1
>> [17179617.116000] md: recovery of RAID array md0
>> [17179617.168000] md: minimum _guaranteed_  speed: 1000 KB/sec/disk.
>> [17179617.240000] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for recovery.
>> [17179617.360000] md: using 128k window, over a total of 976759936 blocks.
>> [17179632.056000] kjournald starting.  Commit interval 5 seconds
>> [17179632.140000] EXT3 FS on sdb8, internal journal
>> [17179632.196000] EXT3-fs: mounted filesystem with ordered data mode.
>> [17179632.312000] kjournald starting.  Commit interval 5 seconds
>> [17179632.392000] EXT3 FS on sdb4, internal journal
>> [17179632.448000] EXT3-fs: mounted filesystem with ordered data mode.
>> [17179632.556000] kjournald starting.  Commit interval 5 seconds
>> [17179632.632000] EXT3 FS on sdb6, internal journal
>> [17179632.688000] EXT3-fs: mounted filesystem with ordered data mode.
>> [17179632.816000] kjournald starting.  Commit interval 5 seconds
>> [17179632.920000] EXT3 FS on sda1, internal journal
>> [17179632.976000] EXT3-fs: mounted filesystem with ordered data mode.
>> [17179633.408000] kjournald starting.  Commit interval 5 seconds
>> [17179633.512000] EXT3 FS on md0, internal journal
>> [17179633.564000] EXT3-fs: mounted filesystem with ordered data mode.
>> [17179639.712000] eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.
> 
> 


-- 
Dirk Van Hertem                       Dirk.VanHertem@esat.kuleuven.be
Electrical Engineering Department  http://www.esat.kuleuven.be/electa
K.U. Leuven, ESAT-ELECTA                         tel: +32-16-32.18.95
10, Kasteelpark Arenberg, B-3001 Heverlee        fax: +32-16-32.19.85

--------------000803000503010300030909
Content-Type: text/plain;
 name="ser_pim.txt"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="ser_pim.txt"

Main Menu: Enter command > ser pim

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp =
  Fri May  15 20:19:22 GMT 2009    (20:09:05:15:20:19:22)

HPMC Chassis Codes = 2cbf0  2500b  2cbf2  2cbfc

General Registers 0 - 31
00-03   0000000000000000  000000001021d000  00000000000fca38  000000004df4c074
04-07   0000000000000000  000000004df4d380  000000000008073c  000000004df4c000
08-11   0000000000102598  0000000000013000  0000000000000000  0000000000013000
12-15   0000000000000000  0000000000000005  00000000001ca06c  00000000f0400004
16-19   000000004e1f8540  00000000f000017c  00000000f0000174  000000004df4c000
20-23   0000000000000001  0000000000066004  0000000000066000  000000004f497b30
24-27   0000000000000001  ffffffff80000000  000000004df4c074  00000000103850f0
28-31   0000000001000000  0000000000066380  000000004e1f8bc0  0000000000000004

<Press any key to continue (q to quit)>

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   000000000000003a  0000000000000000  00000000000000c0  0000000000000001
12-15   0000000000000000  0000000000000000  000000000010d000  00000000fe000000
16-19   000002aeeacf3b1a  0000000000000000  0000000000070464  000000000ff6009c
20-23   00000000a627ffd2  0000000008066004  000000ff0004ff0e  0000000080000000
24-27   00000000003c7000  000000003e402000  0000000000044021  00000000f0412000
28-31   0000000055555555  0000000055555555  000000004e1f8000  0000000011111111
Space Registers 0 - 7

00-03   00000000          00000000          00000000          0000001d
04-07   00000000          00000000          00000000          00000000
<Press any key to continue (q to quit)>

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000070468
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030103b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000fff4820004
System Requestor Address     = 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000  0000000000000000
04-07   7ff7ffffffffffff  41d25c49fb800000  000000058c000000  7ff7ffffffffffff
08-11   000000000000fe9c  000000024f415bc0  4f415bc800000000  1056c58000000003
12-15   5555555555555555  5555555555555555  5555555555555555  5555555555555555
16-19   5555555555555555  5555555555555555  5555555555555555  5555555555555555
20-23   5555555555555555  5555555555555555  0000008099999e4f  003a2c6a00000000
24-27   0000000000000000  000000001d163500  00001c3e103d2b48  1022b1c810263260
28-31   ffffffff00001c3e  103990b01018c6ec  103990b000000190  4f42428010115ed0

<Press any key to continue (q to quit)>


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81041008000000
Available Memory             = 0x0000000040000000
CPU Diagnose Register 2      = 0x0301000000000004
CPU Status Register 0        = 0x2420c20000000000
CPU Status Register 1        = 0x8002000000000000
SADD LOG                     = 0xc100f0fff4820004
Read Short LOG               = 0xc1a0f0fff4820004
ERROR_STATUS                 = 0x0000000000100010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0xc1bff0fffed08040
RUN_DATA_LOW                 = 0xc1bff0fffed08040
RUN_CTRL                     = 0x0000021c00001418
RUN_ADDR                     = 0xc1bff0fffed08040
System Responder Path        = 0x00ffffff0a010400


HPMC PIM Analysis Information:

Timestamp =
  Fri May  15 20:19:22 GMT 2009    (20:09:05:15:20:19:22)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

A Data I/O Fetch Timeout occurred while CPU 0 was
requesting information from a device at the path 10/1/4/0 (PCI slot 4).


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not log
any additional information about the HPMC.

<Press any key to continue (q to quit)>

-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000


-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000

<Press any key to continue (q to quit)>

<Press any key to continue (q to quit)>

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000000000
CPU State                    = 0x00000000
<Press any key to continue (q to quit)>

Memory Error Log Information:

Timestamp =
  Fri May  15 20:19:22 GMT 2009    (20:09:05:15:20:19:22)


'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:

   No memory errors logged


I/O Module Error Log Information:

Timestamp =
  Fri May  15 20:19:22 GMT 2009    (20:09:05:15:20:19:22)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048
   1    ----------   0x1e0cc2a9   ------------------
   2    ----------   0x2e0cc009   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    ----------   0x4e0cc009   ------------------
   5    ----------   0x5e0cc009   ------------------
   6    ----------   0x6e0cc009   ------------------
   7    ----------   0x7e0cc009   ------------------
Main Menu: Enter command >



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From - Thu Nov 08 21:04:16 2018
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] misplaced parenthesis?
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Cc: kyle@mcmartin.ca, linux-parisc@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>
To: Roel Kluin <roel.kluin@gmail.com>
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This is a bit confusingly written, but your patch does not appear to be 
correct.

== has higher precedence than &, so you are basically changing it to:
if (likely(t1 & 1))

it really should be

-	if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
+	if (likely((t1 & (sizeof(unsigned int)-1)) == 0)) {

randolph


Roel Kluin wrote:
> Fix misplaced parenthesis.
>
> Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
> ---
> I think this is what was intended? Note that this patch may affect
> profiling.
>
> diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
> index bbda909..30207b0 100644
> --- a/arch/parisc/lib/memcpy.c
> +++ b/arch/parisc/lib/memcpy.c
> @@ -405,7 +405,7 @@ byte_copy:
>  
>  unaligned_copy:
>  	/* possibly we are aligned on a word, but not on a double... */
> -	if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
> +	if (likely(t1 & (sizeof(unsigned int)-1) == 0)) {
>  		t2 = src & (sizeof(unsigned int) - 1);
>  
>  		if (unlikely(t2 != 0)) {
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
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From: Matt Turner <mattst88@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] misplaced parenthesis?
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Cc: Roel Kluin <roel.kluin@gmail.com>, kyle@mcmartin.ca,
	linux-parisc@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>
To: Randolph Chung <randolph@tausq.org>
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Does gcc produce different code for the three variations?

Matt

On Sat, May 16, 2009 at 12:14 AM, Randolph Chung <randolph@tausq.org> w=
rote:
> This is a bit confusingly written, but your patch does not appear to =
be
> correct.
>
> =3D=3D has higher precedence than &, so you are basically changing it=
 to:
> if (likely(t1 & 1))
>
> it really should be
>
> - =A0 =A0 =A0 if (likely(t1 & (sizeof(unsigned int)-1)) =3D=3D 0) {
> + =A0 =A0 =A0 if (likely((t1 & (sizeof(unsigned int)-1)) =3D=3D 0)) {
>
> randolph
>
>
> Roel Kluin wrote:
>>
>> Fix misplaced parenthesis.
>>
>> Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
>> ---
>> I think this is what was intended? Note that this patch may affect
>> profiling.
>>
>> diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
>> index bbda909..30207b0 100644
>> --- a/arch/parisc/lib/memcpy.c
>> +++ b/arch/parisc/lib/memcpy.c
>> @@ -405,7 +405,7 @@ byte_copy:
>> =A0=A0unaligned_copy:
>> =A0 =A0 =A0 =A0/* possibly we are aligned on a word, but not on a do=
uble... */
>> - =A0 =A0 =A0 if (likely(t1 & (sizeof(unsigned int)-1)) =3D=3D 0) {
>> + =A0 =A0 =A0 if (likely(t1 & (sizeof(unsigned int)-1) =3D=3D 0)) {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0t2 =3D src & (sizeof(unsigned int) - =
1);
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (unlikely(t2 !=3D 0)) {
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-pari=
sc" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at =A0http://vger.kernel.org/majordomo-info.html
>>
>
> --
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From - Thu Nov 08 21:04:16 2018
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] misplaced parenthesis?
Date: Mon, 18 May 2009 09:42:50 +0800
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Cc: Roel Kluin <roel.kluin@gmail.com>, kyle@mcmartin.ca,
	linux-parisc@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>
To: Matt Turner <mattst88@gmail.com>
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The wrong version of course produces different code....

the original and the corrected one may produce different code depending 
on how the compiler schedules things.

randolph

Matt Turner wrote:
> Does gcc produce different code for the three variations?
>
> Matt
>
> On Sat, May 16, 2009 at 12:14 AM, Randolph Chung <randolph@tausq.org> wrote:
>   
>> This is a bit confusingly written, but your patch does not appear to be
>> correct.
>>
>> == has higher precedence than &, so you are basically changing it to:
>> if (likely(t1 & 1))
>>
>> it really should be
>>
>> -       if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
>> +       if (likely((t1 & (sizeof(unsigned int)-1)) == 0)) {
>>
>> randolph
>>
>>
>> Roel Kluin wrote:
>>     
>>> Fix misplaced parenthesis.
>>>
>>> Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
>>> ---
>>> I think this is what was intended? Note that this patch may affect
>>> profiling.
>>>
>>> diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
>>> index bbda909..30207b0 100644
>>> --- a/arch/parisc/lib/memcpy.c
>>> +++ b/arch/parisc/lib/memcpy.c
>>> @@ -405,7 +405,7 @@ byte_copy:
>>>   unaligned_copy:
>>>        /* possibly we are aligned on a word, but not on a double... */
>>> -       if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
>>> +       if (likely(t1 & (sizeof(unsigned int)-1) == 0)) {
>>>                t2 = src & (sizeof(unsigned int) - 1);
>>>                  if (unlikely(t2 != 0)) {
>>> --
>>> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
>>> the body of a message to majordomo@vger.kernel.org
>>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>>
>>>       
>> --
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>> the body of a message to majordomo@vger.kernel.org
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>>     
> --
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From - Thu Nov 08 21:04:16 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: random freezes B2000 running debian hppa lenny
Date: Sun, 17 May 2009 21:04:11 -0600
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To: Dirk Van Hertem <dirk.vanhertem@ieee.org>
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On Sat, May 16, 2009 at 12:40:31AM +0200, Dirk Van Hertem wrote:
> Dear Grant,
> Dear linux-parisc enthousiasts,
> 
> Sorry for the late reply: in the last week, my vt220 terminal died and
> the power supply of my old (i386) server died as well, so I was busy
> with other things.

No problem.

> I attached the "ser pim" output to this email, I hope it helps. If you
> need any other information, please ask, I hope I'll be more responsive
> next time...

HPMC Chassis Codes = 2cbf0  2500b  2cbf2  2cbfc

Looking at:
    ftp://ftp.parisc-linux.org/docs/platforms/A2375-90004.pdf

CBF0 HPMC handling initiated.
CBF2 Invalid length for OS HPMC handler
CBFC Branch to OS HPMC failed

Just means the linux HPMC handler didn't get called. Hrm. This worked once
upon a time and I thought got fixed 6-8 months ago.

Next thing I look at is:
RUN_ADDR                     = 0xc1bff0fffed08040

So whatever is at 0xfffed08040 (40 bit addresses physically)
was the either the victim or the culprit. Often this is a MMIO BAR
plus some offset (probably 0x40). I suggest looking in the
Controller driver for that offset and where it's used in the
initialization


System Responder Path        = 0x00ffffff0a010400

This is supposed to match the HPA (Host Phys Address) of one of the
devices that is listed at the beginning of the parisc-linux boot.
I'm not sure it' accurate though.

And then the last part of the PIM that's interesting basically confirms
what we have been guessing:

'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

A Data I/O Fetch Timeout occurred while CPU 0 was
requesting information from a device at the path 10/1/4/0 (PCI slot 4).

I forgot how to check if the "I/O Fetch Timeout" occurred because
the IOMMU already went "fatal" (DMA was attempted to an unmapped address).


FYI, I also found the C3000 service manual here:
    http://sysdoc.doors.ch/HP/lpv38336.pdf

and uploaded a copy to:
	ftp://ftp.parisc-linux.org/docs/platforms/c3000-service.pdf

TODO: add an entry to http://www.parisc-linux.org/documentation/ 

hth,
grant
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From - Thu Nov 08 21:04:16 2018
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From: Dirk Van Hertem <dirk.vanhertem@ieee.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: random freezes B2000 running debian hppa lenny
Date: Mon, 18 May 2009 11:34:27 +0200
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To: Grant Grundler <grundler@parisc-linux.org>
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Hello Grant,

Thank you for the response.

I am sorry to say, but I more or less understand your email, yet I have
no idea what to do with it...

How do I proceed to get this fixed? I am willing to learn something
about debugging, but I would need someone to hold my hand (I do not know
C, I have only a basic understanding on how the kernel works,...). I
have the impression that the problem is not gigantic, but might be
something simple to solve, maybe even just patching the sata_promise.c
file? Yet, I do not have an idea where and how to start looking...

I can give you access to the machine if that would help (note that this
would last only one hour or so, than it will hang automatically and I
would need to reboot it ;).

So my questions are:
* Is this something that can be solved? (in a reasonable time frame, I
want to use the hard disks for storage ;-))
* by me? (If so, how?)
* Must I forward this to the maintainers of this promise card within the
kernel, or is this a parisc thing?

>> I attached the "ser pim" output to this email, I hope it helps. If you
>> need any other information, please ask, I hope I'll be more responsive
>> next time...
>
> HPMC Chassis Codes = 2cbf0  2500b  2cbf2  2cbfc
> 
> Looking at:
>     ftp://ftp.parisc-linux.org/docs/platforms/A2375-90004.pdf
> 
> CBF0 HPMC handling initiated.
> CBF2 Invalid length for OS HPMC handler
> CBFC Branch to OS HPMC failed
> 
> Just means the linux HPMC handler didn't get called. Hrm. This worked once
> upon a time and I thought got fixed 6-8 months ago.
> 
> Next thing I look at is:
> RUN_ADDR                     = 0xc1bff0fffed08040
> 
> So whatever is at 0xfffed08040 (40 bit addresses physically)
> was the either the victim or the culprit. Often this is a MMIO BAR
> plus some offset (probably 0x40). I suggest looking in the
> Controller driver for that offset and where it's used in the
> initialization
> 

In sata_promise.c, there is the following code:

	/* per-port ATA register offsets (from ap->ioaddr.cmd_addr) */

	PDC_PKT_SUBMIT		= 0x40, /* Command packet pointer addr*/

This PDC_PKT_SUBMIT is than used again here:

static void pdc_packet_start(struct ata_queued_cmd *qc)
{
	struct ata_port *ap = qc->ap;
	struct pdc_port_priv *pp = ap->private_data;
	void __iomem *host_mmio = ap->host->iomap[PDC_MMIO_BAR];
	void __iomem *ata_mmio = ap->ioaddr.cmd_addr;
	unsigned int port_no = ap->port_no;
	u8 seq = (u8) (port_no + 1);

	VPRINTK("ENTER, ap %p\n", ap);

	writel(0x00000001, host_mmio + (seq * 4));
	readl(host_mmio + (seq * 4));	/* flush */

	pp->pkt[2] = seq;
	wmb();			/* flush PRD, pkt writes */
	writel(pp->pkt_dma, ata_mmio + PDC_PKT_SUBMIT);
	readl(ata_mmio + PDC_PKT_SUBMIT); /* flush */
}

This function is then used in case a ATA_PROT_DMA is called.
It seems like that this might be the spot where the problem might be (as
you indicate further down). I will test (just for the sake of it) if it
will stop crashing if I turn DMA down (if that is possible with a raid
device)

> 
> System Responder Path        = 0x00ffffff0a010400
> 
> This is supposed to match the HPA (Host Phys Address) of one of the
> devices that is listed at the beginning of the parisc-linux boot.
> I'm not sure it' accurate though.

I will try to check that this evening (I hope this will be something
that will appear in my minicom screen?

> 
> And then the last part of the PIM that's interesting basically confirms
> what we have been guessing:
> 
> '9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:
> 
> A Data I/O Fetch Timeout occurred while CPU 0 was
> requesting information from a device at the path 10/1/4/0 (PCI slot 4).
> 
> I forgot how to check if the "I/O Fetch Timeout" occurred because
> the IOMMU already went "fatal" (DMA was attempted to an unmapped address).
> 
> 
> FYI, I also found the C3000 service manual here:
>     http://sysdoc.doors.ch/HP/lpv38336.pdf
> 
> and uploaded a copy to:
> 	ftp://ftp.parisc-linux.org/docs/platforms/c3000-service.pdf
> 
> TODO: add an entry to http://www.parisc-linux.org/documentation/ 
> 
> hth,
> grant

Thanks again,

Dirk

-- 
Dirk Van Hertem                       Dirk.VanHertem@esat.kuleuven.be
Electrical Engineering Department  http://www.esat.kuleuven.be/electa
K.U. Leuven, ESAT-ELECTA                         tel: +32-16-32.18.95
10, Kasteelpark Arenberg, B-3001 Heverlee        fax: +32-16-32.19.85
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From - Thu Nov 08 21:04:17 2018
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Subject: [PATCH 1/2] parport_gsc: fix printk format warning
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Fix this build warning:
drivers/parport/parport_gsc.c:356: warning: format '%lx' expects type
'long unsigned int', but argument 2 has type 'resource_size_t'

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---
 drivers/parport/parport_gsc.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
index 6531db2..51d4866 100644
--- a/drivers/parport/parport_gsc.c
+++ b/drivers/parport/parport_gsc.c
@@ -353,7 +353,7 @@ static int __devinit parport_init_chip(struct parisc_device *dev)
 
 	if (!dev->irq) {
 		printk(KERN_WARNING "IRQ not found for parallel device at 0x%lx\n",
-			dev->hpa.start);
+			(unsigned long)dev->hpa.start);
 		return -ENODEV;
 	}
 
-- 
1.6.2.5

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From - Thu Nov 08 21:04:17 2018
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Fix this build warning:
drivers/serial/8250_gsc.c:44: warning: format '%lx' expects type
'long unsigned int', but argument 2 has type 'resource_size_t'

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---
 drivers/serial/8250_gsc.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/serial/8250_gsc.c b/drivers/serial/8250_gsc.c
index 418b4fe..a7b02a5 100644
--- a/drivers/serial/8250_gsc.c
+++ b/drivers/serial/8250_gsc.c
@@ -41,7 +41,7 @@ static int __init serial_init_chip(struct parisc_device *dev)
 			printk(KERN_INFO
 				"Serial: device 0x%lx not configured.\n"
 				"Enable support for Wax, Lasi, Asp or Dino.\n",
-				dev->hpa.start);
+				(unsigned long)dev->hpa.start);
 		return -ENODEV;
 	}
 
-- 
1.6.2.5

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On Mon, May 18, 2009 at 11:34:27AM +0200, Dirk Van Hertem wrote:
> Hello Grant,
> 
> Thank you for the response.
> 
> I am sorry to say, but I more or less understand your email, yet I have
> no idea what to do with it...
> 
> How do I proceed to get this fixed?

1) Locate the use of 0x40 offset in the Promise SATA controller driver.
2) Narrow down which uses are likely to have been the "victim"
3) Look for dma map/unmap "leaks" - use of an address for DMA *after*
   it's been unmapped OR before it's been mapped.

> I am willing to learn something
> about debugging, but I would need someone to hold my hand (I do not know
> C, I have only a basic understanding on how the kernel works,...). I
> have the impression that the problem is not gigantic, but might be
> something simple to solve, maybe even just patching the sata_promise.c
> file? Yet, I do not have an idea where and how to start looking...

Yes, I think you can read the sata_promise.c. But after first glance,
I'm afraid this is not a trivial problem...but you can do some code review
to look for unmatched or missing dma_map_sg() and dma_unmap_sg() calls.

Here's a start of the steps above:

1) Locate the use of 0x40 offset in the Promise SATA controller driver.

  56         /* host register offsets (from host->iomap[PDC_MMIO_BAR]) */
  57         PDC_INT_SEQMASK         = 0x40, /* Mask of asserted SEQ INTs */
  58         PDC_FLASH_CTL           = 0x44, /* Flash control register */
...
 811 static irqreturn_t pdc_interrupt(int irq, void *dev_instance)
 812 {
...
 844         /* reading should also clear interrupts */
 845         mask = readl(host_mmio + PDC_INT_SEQMASK);
... [ does some bit frobbing ]
 858         writel(mask, host_mmio + PDC_INT_SEQMASK);


So the "victim" seems to be a normal read from a register.
Unlikely to be the problem. Likely *before* the interrupt was delivered,
had attempted to do DMA to an invalid DMA address. Since the IOMMU
lookup fails, the IOMMU goes "fatal" and stops forwarding MMIO traffic
to the PCI busses (including the Promise card in slot 4).


> I can give you access to the machine if that would help (note that this
> would last only one hour or so, than it will hang automatically and I
> would need to reboot it ;).

It won't help since the "ideal" way to debug this would be to attach
a PCI analyzer, collect a trace of the failure, then examine all
the DMA transactions preceeding the failure.

The less ideal way is to stare at the code, a Promise SATA Programmers
Guide, and figure out how the device is supposed to work.

Also, I'd be looking extra careful at the error handling paths.
Thus are notorious for not cleaning up correctly. In this case,
"canceling" an IO that is still in flight. Driver has to guarantee
the SATA controller will NEVER DMA to a chunk of memory that is not mapped
for DMA.



> So my questions are:
> * Is this something that can be solved? (in a reasonable time frame, I
> want to use the hard disks for storage ;-))
> * by me? (If so, how?)
> * Must I forward this to the maintainers of this promise card within the
> kernel, or is this a parisc thing?

parisc exposes the bug. I'm pretty sure this is a sata_promise driver bug.
Forwarding to the promise maintainer and CC'ing linux-ide@vger.kernel.org
would probably be the best thing to start with. You can still take a look
through the code.


> >> I attached the "ser pim" output to this email, I hope it helps. If you
> >> need any other information, please ask, I hope I'll be more responsive
> >> next time...
> >
> > HPMC Chassis Codes = 2cbf0  2500b  2cbf2  2cbfc
> > 
> > Looking at:
> >     ftp://ftp.parisc-linux.org/docs/platforms/A2375-90004.pdf
> > 
> > CBF0 HPMC handling initiated.
> > CBF2 Invalid length for OS HPMC handler
> > CBFC Branch to OS HPMC failed
> > 
> > Just means the linux HPMC handler didn't get called. Hrm. This worked once
> > upon a time and I thought got fixed 6-8 months ago.
> > 
> > Next thing I look at is:
> > RUN_ADDR                     = 0xc1bff0fffed08040
> > 
> > So whatever is at 0xfffed08040 (40 bit addresses physically)
> > was the either the victim or the culprit. Often this is a MMIO BAR
> > plus some offset (probably 0x40). I suggest looking in the
> > Controller driver for that offset and where it's used in the
> > initialization
> > 
> 
> In sata_promise.c, there is the following code:
> 
> 	/* per-port ATA register offsets (from ap->ioaddr.cmd_addr) */
> 
> 	PDC_PKT_SUBMIT		= 0x40, /* Command packet pointer addr*/

Good! I stopped looking for 0x40 once I found PDC_INT_SEQMASK.
You could be right that this use of 0x40 is the victim.
It's quite possible. But the scenario I describe is still the
same (DMA to invalid address and then MMIO fails).

> This PDC_PKT_SUBMIT is than used again here:
> 
> static void pdc_packet_start(struct ata_queued_cmd *qc)
> {
> 	struct ata_port *ap = qc->ap;
> 	struct pdc_port_priv *pp = ap->private_data;
> 	void __iomem *host_mmio = ap->host->iomap[PDC_MMIO_BAR];
> 	void __iomem *ata_mmio = ap->ioaddr.cmd_addr;
> 	unsigned int port_no = ap->port_no;
> 	u8 seq = (u8) (port_no + 1);
> 
> 	VPRINTK("ENTER, ap %p\n", ap);
> 
> 	writel(0x00000001, host_mmio + (seq * 4));
> 	readl(host_mmio + (seq * 4));	/* flush */
> 
> 	pp->pkt[2] = seq;
> 	wmb();			/* flush PRD, pkt writes */
> 	writel(pp->pkt_dma, ata_mmio + PDC_PKT_SUBMIT);
> 	readl(ata_mmio + PDC_PKT_SUBMIT); /* flush */
> }
> 
> This function is then used in case a ATA_PROT_DMA is called.
> It seems like that this might be the spot where the problem might be (as
> you indicate further down). I will test (just for the sake of it) if it
> will stop crashing if I turn DMA down (if that is possible with a raid
> device)

Things that can be tried:
o try to limit which buffers get used,
o leave more stale DMA mappings open longer (risks memory corruption)
o dump additional info (e.g. last 5 dma_map/dma_unmap parameters) in
  the HPMC handler (which currently isn't working in the kernel you used).

I don't know if these are beyond you ability. But "DMA mapping code" in
this case refers to drivers/parisc/sba_iommu.c . Take a look at that
so you have an idea of what is involved with DMA map/unmap code.


> > System Responder Path        = 0x00ffffff0a010400
> > 
> > This is supposed to match the HPA (Host Phys Address) of one of the
> > devices that is listed at the beginning of the parisc-linux boot.
> > I'm not sure it' accurate though.
> 
> I will try to check that this evening (I hope this will be something
> that will appear in my minicom screen?

Yes, it should be in the console output someplace.

> 
> > 
> > And then the last part of the PIM that's interesting basically confirms
> > what we have been guessing:
> > 
> > '9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:
> > 
> > A Data I/O Fetch Timeout occurred while CPU 0 was
> > requesting information from a device at the path 10/1/4/0 (PCI slot 4).

I forgot to mention the "I/O Module Error Log" means something too:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048

It would be worth finding out what "Word3" (hint: search parisc-linux
mail archives) means again.

cheers,
grant

> > 
> > I forgot how to check if the "I/O Fetch Timeout" occurred because
> > the IOMMU already went "fatal" (DMA was attempted to an unmapped address).
> > 
> > 
> > FYI, I also found the C3000 service manual here:
> >     http://sysdoc.doors.ch/HP/lpv38336.pdf
> > 
> > and uploaded a copy to:
> > 	ftp://ftp.parisc-linux.org/docs/platforms/c3000-service.pdf
> > 
> > TODO: add an entry to http://www.parisc-linux.org/documentation/ 
> > 
> > hth,
> > grant
> 
> Thanks again,
> 
> Dirk
> 
> -- 
> Dirk Van Hertem                       Dirk.VanHertem@esat.kuleuven.be
> Electrical Engineering Department  http://www.esat.kuleuven.be/electa
> K.U. Leuven, ESAT-ELECTA                         tel: +32-16-32.18.95
> 10, Kasteelpark Arenberg, B-3001 Heverlee        fax: +32-16-32.19.85
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Since many kernel versions I regularly faced reproducibly kernel hangs when
compiling some bigger files. The machine suddenly just seemed to hang.

With spinlock debugging turned on I found this:

BUG: spinlock recursion on CPU#0, tool/7263
 lock: 10644000, .magic: dead4ead, .owner: tool/7263, .owner_cpu: 0
Backtrace:
 [<10113a94>] show_stack+0x18/0x28

BUG: spinlock lockup on CPU#0, tool/7263, 10644000
Backtrace:
 [<10113a94>] show_stack+0x18/0x28

BUG: soft lockup - CPU#0 stuck for 61s! [tool:7263]
IASQ: 00000000 00000000 IAOQ: 102d55dc 102d557c
 IIR: 03c008b3    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 7d1a4000 CR31: 11111111
 ORIG_R28: 00000000
 IAOQ[0]: _raw_spin_lock+0x15c/0x1c0
 IAOQ[1]: _raw_spin_lock+0xfc/0x1c0
 RP(r2): _raw_spin_lock+0x18c/0x1c0
Backtrace:
 [<102d560c>] _raw_spin_lock+0x18c/0x1c0

Kernel panic - not syncing: softlockup: hung tasks
Backtrace:
 [<10113a94>] show_stack+0x18/0x28


The lock at "10644000" references pa_tlb_lock, which is used to lock the PxTLB 
broadcasts (see comment in cache.c).

So, I think we need to use the irq-blocking functions for purge_tlb_start() and
purge_tlb_end(). I did tested the patch below, and since then I didn't faced one
single hang any longer. 

The patch below is just a hack. It will need a cleanup and is just to open
discussions here on the list.

Helge

diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index 1f6fd4f..9b92fbe 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -18,8 +18,8 @@
  */
 extern spinlock_t pa_tlb_lock;
 
-#define purge_tlb_start(x) spin_lock(&pa_tlb_lock)
-#define purge_tlb_end(x) spin_unlock(&pa_tlb_lock)
+#define purge_tlb_start(x)	do { unsigned long flags; spin_lock_irqsave(&pa_tlb_lock, flags)
+#define purge_tlb_end(x)	     spin_unlock_irqrestore(&pa_tlb_lock, flags); } while (0)
 
 extern void flush_tlb_all(void);
 extern void flush_tlb_all_local(void *);
--
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> -#define purge_tlb_start(x) spin_lock(&pa_tlb_lock)
> -#define purge_tlb_end(x) spin_unlock(&pa_tlb_lock)
> +#define purge_tlb_start(x)	do { unsigned long flags; spin_lock_irqsave(&pa_tlb_lock, flags)
> +#define purge_tlb_end(x)	     spin_unlock_irqrestore(&pa_tlb_lock, flags); } while (0)

To my taste, the handling of the "flags" variable is ugly and potentially
error prone.

I think it would be better to add another argument to the macros, and declare
the variable flags in the routines that use the macros (as is done for the
current users of spin_lock_irqsave macro).

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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> > -#define purge_tlb_start(x) spin_lock(&pa_tlb_lock)
> > -#define purge_tlb_end(x) spin_unlock(&pa_tlb_lock)
> > +#define purge_tlb_start(x)	do { unsigned long flags; spin_lock_irqsave(&pa_tlb_lock, flags)
> > +#define purge_tlb_end(x)	     spin_unlock_irqrestore(&pa_tlb_lock, flags); } while (0)
> 
> To my taste, the handling of the "flags" variable is ugly and potentially
> error prone.
> 
> I think it would be better to add another argument to the macros, and declare
> the variable flags in the routines that use the macros (as is done for the
> current users of spin_lock_irqsave macro).

Actually, the 'x' argument could be used for this.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:17 2018
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John David Anglin wrote:
>>> -#define purge_tlb_start(x) spin_lock(&pa_tlb_lock)
>>> -#define purge_tlb_end(x) spin_unlock(&pa_tlb_lock)
>>> +#define purge_tlb_start(x)	do { unsigned long flags; spin_lock_irqsave(&pa_tlb_lock, flags)
>>> +#define purge_tlb_end(x)	     spin_unlock_irqrestore(&pa_tlb_lock, flags); } while (0)
>> To my taste, the handling of the "flags" variable is ugly and potentially
>> error prone.
>>
>> I think it would be better to add another argument to the macros, and declare
>> the variable flags in the routines that use the macros (as is done for the
>> current users of spin_lock_irqsave macro).
> 
> Actually, the 'x' argument could be used for this.

I mentioned in my original mail that this is not the final version:
> The patch below is just a hack. It will need a cleanup and is just to open
> discussions here on the list.

But instead of cleaning it up right now, I would be very much interested if
this patch fixes the kernel stalls you see as well?

If it does, then I agree that we should add a "flags" argument to purge_tlb_xxx() functions, e.g.
- purge_tlb_start(lock, flags) 
- purge_tlb_end(lock, flags)

Helge
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From - Thu Nov 08 21:04:17 2018
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> I mentioned in my original mail that this is not the final version:
> > The patch below is just a hack. It will need a cleanup and is just to open
> > discussions here on the list.
> 
> But instead of cleaning it up right now, I would be very much interested if
> this patch fixes the kernel stalls you see as well?

I can't say that I see kernel stalls on any of my machines.  However,
I do see memory corruption that I have reported a number of times.  I also
see a user/group id bug that also could be a memory corruption bug
(pam cache).  I think there's a good possibility that your patch may
help.

I have a version installed on top of 2.6.30-rc6 on my rp3340.  I haven't
done a lot of testing with it, but it boots and I have done one kernel
build with it.  Didn't include lock in macro as you show below.

I was looking a couple of the warnings:
arch/parisc/kernel/time.c:184: warning: initialization from incompatible pointer type
arch/parisc/kernel/irq.c:123: warning: passing argument 1 of 'cpumask_setall' from incompatible pointer type
arch/parisc/kernel/irq.c:141: warning: passing argument 1 of 'cpumask_copy' from incompatible pointer type
arch/parisc/kernel/irq.c:300: warning: passing argument 1 of 'cpumask_copy' from incompatible pointer type
arch/parisc/kernel/irq.c:357: warning: passing argument 2 of 'cpumask_copy' from incompatible pointer type

The first is due to the missing argument in read_cr16.  I believe a fix
was posted to the list.

The latter warnings seem due to a change in the type of the affinity field
of the irq_desc struct.

> If it does, then I agree that we should add a "flags" argument to purge_tlb_xxx() functions, e.g.
> - purge_tlb_start(lock, flags) 
> - purge_tlb_end(lock, flags)

Dave
-- 
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From - Thu Nov 08 21:04:17 2018
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> So, I think we need to use the irq-blocking functions for purge_tlb_start() and
> purge_tlb_end(). I did tested the patch below, and since then I didn't faced one
> single hang any longer. 

The preceeding comment says that disabling preemption should be sufficient.
Disabling interrupts may be overkill.

I have CONFIG_PREEMPT_NONE set both on my c3750 and rp3440.  I'm starting
to wonder if there is a preemption bug.

Dave
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From - Thu Nov 08 21:04:17 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH, RFC] fix parisc runtime hangs wrt pa_tlb_lock
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> Since many kernel versions I regularly faced reproducibly kernel hangs when
> compiling some bigger files. The machine suddenly just seemed to hang.
> 
> With spinlock debugging turned on I found this:
> 
> BUG: spinlock recursion on CPU#0, tool/7263
>  lock: 10644000, .magic: dead4ead, .owner: tool/7263, .owner_cpu: 0
> Backtrace:
>  [<10113a94>] show_stack+0x18/0x28
> 
> BUG: spinlock lockup on CPU#0, tool/7263, 10644000
> Backtrace:
>  [<10113a94>] show_stack+0x18/0x28
> 
> BUG: soft lockup - CPU#0 stuck for 61s! [tool:7263]
> IASQ: 00000000 00000000 IAOQ: 102d55dc 102d557c
>  IIR: 03c008b3    ISR: 00000000  IOR: 00000000
>  CPU:        0   CR30: 7d1a4000 CR31: 11111111
>  ORIG_R28: 00000000
>  IAOQ[0]: _raw_spin_lock+0x15c/0x1c0
>  IAOQ[1]: _raw_spin_lock+0xfc/0x1c0
>  RP(r2): _raw_spin_lock+0x18c/0x1c0
> Backtrace:
>  [<102d560c>] _raw_spin_lock+0x18c/0x1c0
> 
> Kernel panic - not syncing: softlockup: hung tasks
> Backtrace:
>  [<10113a94>] show_stack+0x18/0x28

I have tested the proposed change using 2.6.30-rc6 and a modified version
of 2.6.22.10.  I tested using SMP kernels running on a rp3440 and UP
kernels on a c3750.  I also tested changing the macros to just use
preempt_disable/preempt_enable.

The patch doesn't cause any new problems as far as I can tell.  However,
it doesn't fix any of the problems that I currently see on these two
machines.  In particular, I see the occasional gcc testsuite timeout
using SMP kernels.  Programs that usually take a few seconds to run
timeout after three minutes.  These timeouts don't occur with UP kernels.

On the rp3440, the spinlock is definitely needed.  With just
preempt_disable/preempt_enable, a crash occurs during bootstrap
at the point unused memory is recovered.  Thus, the tlb purge
issue referred to in the preceeding comment affects more than
just N class.

On the otherhand, it doesn't seem necessary to disable interrupts
during the purge with UP kernels.  With SMP kernels, it would be nice
to know if the lockup was caused by an interruption during the tlb
purge, or a preemption issue.

I have the sense that disabling interrupts is wrong.  That is any
given CPU can only generate one PxTLB inter processor broadcast
at a time.  Disabling interrupts could cause a deadlock if a TLB
purge was needed while the purge code was executing.

The other alternative is to allow the processor that holds the lock
to enter the flush code.  This would fix the deadlock.  Don't know how
to code this (atomic compare and exchange?).

The preempt_disable/preempt_enable crash on the rp3440 made me wonder
if all tlb purge operations are properly protected with the tlb spinlock.
I think we need to look at flush_tlb_all_local and copy_user_page_asm.
They don't seem protected.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:17 2018
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Subject: Re: [PATCH 2/2] serial: 8250_gsc: fix printk format warning
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On Mon, 18 May 2009 17:11:31 +0400 Alexander Beregalov <a.beregalov@gmail.com> wrote:

> Fix this build warning:
> drivers/serial/8250_gsc.c:44: warning: format '%lx' expects type
> 'long unsigned int', but argument 2 has type 'resource_size_t'
> 

The patch does more than fix a "warning".  It fixes an actual error. 
The caller will prepare a 64-bit argument and the callee will print
only 32 bits of it.

> ---
>  drivers/serial/8250_gsc.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/serial/8250_gsc.c b/drivers/serial/8250_gsc.c
> index 418b4fe..a7b02a5 100644
> --- a/drivers/serial/8250_gsc.c
> +++ b/drivers/serial/8250_gsc.c
> @@ -41,7 +41,7 @@ static int __init serial_init_chip(struct parisc_device *dev)
>  			printk(KERN_INFO
>  				"Serial: device 0x%lx not configured.\n"
>  				"Enable support for Wax, Lasi, Asp or Dino.\n",
> -				dev->hpa.start);
> +				(unsigned long)dev->hpa.start);

Nope.  hpa.start can be u32 or u64.  We need to cast that to the wider
type so that it will correctly print in all circumstances.

So I changed both patches to print with %ll and to cast to
unsigned long long.
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From - Thu Nov 08 21:04:18 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 2/2] serial: 8250_gsc: fix printk format warning
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On Wed, May 27, 2009 at 10:51:06PM -0700, Andrew Morton wrote:
> On Mon, 18 May 2009 17:11:31 +0400 Alexander Beregalov <a.beregalov@gmail.com> wrote:
> 
> > Fix this build warning:
> > drivers/serial/8250_gsc.c:44: warning: format '%lx' expects type
> > 'long unsigned int', but argument 2 has type 'resource_size_t'
> > 
> 
> The patch does more than fix a "warning".  It fixes an actual error. 
> The caller will prepare a 64-bit argument and the callee will print
> only 32 bits of it.

On parisc, AFAIK, GSC devices are always at a 32-bit addresses.
So whatever compiles clean is fine.

Please add "Reviewed by: Grant Grundler <grundler@parisc-linux.org>"

thanks,
grant

> > ---
> >  drivers/serial/8250_gsc.c |    2 +-
> >  1 files changed, 1 insertions(+), 1 deletions(-)
> > 
> > diff --git a/drivers/serial/8250_gsc.c b/drivers/serial/8250_gsc.c
> > index 418b4fe..a7b02a5 100644
> > --- a/drivers/serial/8250_gsc.c
> > +++ b/drivers/serial/8250_gsc.c
> > @@ -41,7 +41,7 @@ static int __init serial_init_chip(struct parisc_device *dev)
> >  			printk(KERN_INFO
> >  				"Serial: device 0x%lx not configured.\n"
> >  				"Enable support for Wax, Lasi, Asp or Dino.\n",
> > -				dev->hpa.start);
> > +				(unsigned long)dev->hpa.start);
> 
> Nope.  hpa.start can be u32 or u64.  We need to cast that to the wider
> type so that it will correctly print in all circumstances.
> 
> So I changed both patches to print with %ll and to cast to
> unsigned long long.
> --
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Rewrote timer_interrupt() to properly handle the "delayed!" case.

If we used floating point math to compute the number of ticks that had
elapsed since the last timer interrupt, it could take up to 12K cycles
(emperical!) to handle the interrupt. Existing code assumed it would
never take more than 8k cycles. We end up programming Interval Timer
to a value less than "current" cycle counter.  Thus have to wait until
Interval Timer "wrapped" and would then get the "delayed!" printk that
I moved below.

Since we don't really know what the upper limit is, I prefer to read
CR16 again after we've programmed it to make sure we won't have to
wait for CR16 to wrap.

Further, the printk was between reading CR16 (cycle couner) and writing CR16
(the interval timer). This would cause us to continue to set the interval
timer to a value that was "behind" the cycle counter. Rinse and repeat.
So no printk's between reading CR16 and setting next interval timer.

Tested on A500 (550 Mhz PA8600).

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

----
Kyle, Helge, and other parisc's,
Please test on 32-bit before committing.
I think I have it right but recognize I might not.

TODO: I wanted to use "do_div()" in order to get both remainder
and value back with one division op. That should help with the
latency alot but can be applied seperately from this patch.

thanks,
grant

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index d4dd056..b6daa53 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -56,9 +56,9 @@ static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
  */
 irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 {
-	unsigned long now;
+	unsigned long now, now2;
 	unsigned long next_tick;
-	unsigned long cycles_elapsed, ticks_elapsed;
+	unsigned long cycles_elapsed, ticks_elapsed = 1;
 	unsigned long cycles_remainder;
 	unsigned int cpu = smp_processor_id();
 	struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
@@ -71,44 +71,24 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 	/* Initialize next_tick to the expected tick time. */
 	next_tick = cpuinfo->it_value;
 
-	/* Get current interval timer.
-	 * CR16 reads as 64 bits in CPU wide mode.
-	 * CR16 reads as 32 bits in CPU narrow mode.
-	 */
+	/* Get current cycle counter (Control Register 16). */
 	now = mfctl(16);
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 5) < cpt) {
+	if ((cycles_elapsed >> 6) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
 		cycles_remainder = cycles_elapsed;
-		ticks_elapsed = 1;
 		while (cycles_remainder > cpt) {
 			cycles_remainder -= cpt;
 			ticks_elapsed++;
 		}
 	} else {
+		/* TODO: Reduce this to one fdiv op */
 		cycles_remainder = cycles_elapsed % cpt;
-		ticks_elapsed = 1 + cycles_elapsed / cpt;
-	}
-
-	/* Can we differentiate between "early CR16" (aka Scenario 1) and
-	 * "long delay" (aka Scenario 3)? I don't think so.
-	 *
-	 * We expected timer_interrupt to be delivered at least a few hundred
-	 * cycles after the IT fires. But it's arbitrary how much time passes
-	 * before we call it "late". I've picked one second.
-	 */
-	if (unlikely(ticks_elapsed > HZ)) {
-		/* Scenario 3: very long delay?  bad in any case */
-		printk (KERN_CRIT "timer_interrupt(CPU %d): delayed!"
-			" cycles %lX rem %lX "
-			" next/now %lX/%lX\n",
-			cpu,
-			cycles_elapsed, cycles_remainder,
-			next_tick, now );
+		ticks_elapsed += cycles_elapsed / cpt;
 	}
 
 	/* convert from "division remainder" to "remainder of clock tick" */
@@ -122,18 +102,56 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cpuinfo->it_value = next_tick;
 
-	/* Skip one clocktick on purpose if we are likely to miss next_tick.
-	 * We want to avoid the new next_tick being less than CR16.
-	 * If that happened, itimer wouldn't fire until CR16 wrapped.
-	 * We'll catch the tick we missed on the tick after that.
+	/* Program the IT when to deliver the next interrupt.
+	 * Only bottom 32-bits of next_tick are writable in CR16!
 	 */
-	if (!(cycles_remainder >> 13))
-		next_tick += cpt;
-
-	/* Program the IT when to deliver the next interrupt. */
-	/* Only bottom 32-bits of next_tick are written to cr16.  */
 	mtctl(next_tick, 16);
 
+	/* Skip one clocktick on purpose if we missed next_tick.
+	 * The new CR16 must be "later" than current CR16 otherwise
+	 * itimer would not fire until CR16 wrapped - e.g 4 seconds
+	 * later on a 1Ghz processor. We'll account for the missed
+	 * tick on the next timer interrupt.
+	 *
+	 * "next_tick - now" will always give the difference regardless
+	 * if one or the other wrapped. If "now" is "bigger" we'll end up
+	 * with a very large unsigned number.
+	 */
+	now2 = mfctl(16);
+	if (next_tick - now2 > cpt)
+		mtctl(next_tick+cpt, 16);
+
+#if 1
+/*
+ * GGG: DEBUG code for how many cycles programming CR16 used.
+ */
+	if (unlikely(now2 - now > 0x3000)) 	/* 12K cycles */
+		printk (KERN_CRIT "timer_interrupt(CPU %d): SLOW! 0x%lx cycles!"
+			" cyc %lX rem %lX "
+			" next/now %lX/%lX\n",
+			cpu, now2 - now, cycles_elapsed, cycles_remainder,
+			next_tick, now );
+#endif
+
+	/* Can we differentiate between "early CR16" (aka Scenario 1) and
+	 * "long delay" (aka Scenario 3)? I don't think so.
+	 *
+	 * Timer_interrupt will be delivered at least a few hundred cycles
+	 * after the IT fires. But it's arbitrary how much time passes
+	 * before we call it "late". I've picked one second.
+	 *
+	 * It's important NO printk's are between reading CR16 and
+	 * setting up the next value. May introduce huge variance.
+	 */
+	if (unlikely(ticks_elapsed > HZ)) {
+		/* Scenario 3: very long delay?  bad in any case */
+		printk (KERN_CRIT "timer_interrupt(CPU %d): delayed!"
+			" cycles %lX rem %lX "
+			" next/now %lX/%lX\n",
+			cpu,
+			cycles_elapsed, cycles_remainder,
+			next_tick, now );
+	}
 
 	/* Done mucking with unreliable delivery of interrupts.
 	 * Go do system house keeping.
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From - Thu Nov 08 21:04:18 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [Fwd: HPPA and Squeeze]
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FYI - Helge

-------- Original Message --------
Subject: HPPA and Squeeze
Resent-Date: Tue,  2 Jun 2009 14:39:10 +0000 (UTC)
Resent-From: debian-hppa@lists.debian.org
Date: Tue, 2 Jun 2009 15:07:35 +0100
From: Neil McGovern <neilm@debian.org>
To: HPPA porters <debian-hppa@lists.debian.org>
CC: admin@debian-ports.org

Hi,

As mentioned previously[0], the release team haven't been happy with the
state of the HPPA port in Debian. After the release team meeting[1], it
has been decided that unfortunatly HPPA will not be supported for
Squeeze. This was after careful consideration, and wasn't an easy
decision.

This means that ftpmasters will be asked to remove HPPA from testing and
unstable from the 30th June. It is suggested that HPPA porters may wish
to consider using debian-ports.org if they wish to continue with the
port.

Regards,
Neil McGovern

[0] http://lists.debian.org/debian-release/2009/04/msg00299.html
[1] http://lists.debian.org/debian-project/2009/05/msg00080.html
-- 
< MadCoder> and right now I'm wearing a tutu and am doing dance steps
< Maulkin> I'm scared by the French cabal in tutus.
< HE> The french cabal doesn't need tutus to scare me.
< HE> They have combined computing power (see lucas) with pure madness (see Joss)


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Subject: Re: [Fwd: HPPA and Squeeze]
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I have to say this is sad but not expected.  It not really possible
to support an architecture without the support of its manufacturer.
HP hasn't provide any PA-RISC support beyond a few test machines for
a few years.

>From what I read on the debian list, the decision was the result of an
unstable kernel (build infrastructure) and the lack of a functional java
port (gcj is considered inadequate and broken).  It was taken even though
Carlos has submitted the patches to transition to NPTL in glibc 2.10.
The links in Neil McGovern message don't provide the actual rational.

Software is always buggy to some extent.  In the the past, when debian
developers reported problems/bugs to the relevant lists, the problems
have generally been resolved.  I haven't seen this happening to the same
extent recently.  So, it's not surprising to me that debian ports are
being lost.

As a user of Squeeze, I haven't experienced any major problems.  Thus,
I am disappointed that it is going to be removed for HPPA.

Dave

> FYI - Helge
> 
> -------- Original Message --------
> Subject: HPPA and Squeeze
> Resent-Date: Tue,  2 Jun 2009 14:39:10 +0000 (UTC)
> Resent-From: debian-hppa@lists.debian.org
> Date: Tue, 2 Jun 2009 15:07:35 +0100
> From: Neil McGovern <neilm@debian.org>
> To: HPPA porters <debian-hppa@lists.debian.org>
> CC: admin@debian-ports.org
> 
> Hi,
> 
> As mentioned previously[0], the release team haven't been happy with the
> state of the HPPA port in Debian. After the release team meeting[1], it
> has been decided that unfortunatly HPPA will not be supported for
> Squeeze. This was after careful consideration, and wasn't an easy
> decision.
> 
> This means that ftpmasters will be asked to remove HPPA from testing and
> unstable from the 30th June. It is suggested that HPPA porters may wish
> to consider using debian-ports.org if they wish to continue with the
> port.
> 
> Regards,
> Neil McGovern
> 
> [0] http://lists.debian.org/debian-release/2009/04/msg00299.html
> [1] http://lists.debian.org/debian-project/2009/05/msg00080.html
> -- 
> < MadCoder> and right now I'm wearing a tutu and am doing dance steps
> < Maulkin> I'm scared by the French cabal in tutus.
> < HE> The french cabal doesn't need tutus to scare me.
> < HE> They have combined computing power (see lucas) with pure madness (see Joss)
> 
> 
> -- 
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> with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
> 
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> the body of a message to majordomo@vger.kernel.org
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> 


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On Wed, Jun 3, 2009 at 1:39 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:

> The links in Neil McGovern message don't provide the actual rational.

Having noticed that myself, I've sent a reply asking for
clarification. We'll see what comes out.

Cheers,
T-Bone

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> As mentioned previously[0], the release team haven't been happy with the
> state of the HPPA port in Debian. After the release team meeting[1], it
> has been decided that unfortunatly HPPA will not be supported for
> Squeeze. This was after careful consideration, and wasn't an easy
> decision.

The GCC project deprecates unsupported targets for one release prior
to removal.  This gives maintainers and interested users fair warning,
and considerable time to address the support issues before removal.

Shouldn't Debian be doing something similar?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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My name is Martines Legacy

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infantry division.with a need for assistance, I have summed up courage
to contact you. I found your contact in address on  journal. I got a
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here,then I shall agree with You. This is no stolen money, and there
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which you shall takecare of this offer after a sucessfull transaction,
We will discuss this in details.

Thanks
Sgt.Martines Legacy
Email: proger34@yahoo.com
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From: Grant Grundler <grundler@parisc-linux.org>
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+linux-parisc (hppa kernel, compiler and !debian tech forum)

Neil,
thanks for the summary. I know this is an unpleasant business in general.

On Tue, Jun 02, 2009 at 03:07:35PM +0100, Neil McGovern wrote:
> Hi,
> 
> As mentioned previously[0], the release team haven't been happy with the
> state of the HPPA port in Debian. After the release team meeting[1], it
> has been decided that unfortunatly HPPA will not be supported for
> Squeeze. This was after careful consideration, and wasn't an easy
> decision.
> 
> This means that ftpmasters will be asked to remove HPPA from testing and
> unstable from the 30th June. It is suggested that HPPA porters may wish
> to consider using debian-ports.org if they wish to continue with the
> port.
> 
> Regards,
> Neil McGovern
> 
> [0] http://lists.debian.org/debian-release/2009/04/msg00299.html

Carlos O'Donnell asked some questions in response to [0] and I never
saw any response.  Can an attendee of the above meeting please reply
this email from Carlos?
    http://lists.debian.org/debian-release/2009/04/msg00303.html

I also never got a response to my offer here:
    http://lists.debian.org/debian-release/2009/04/msg00339.html


And my response again to this question posted in [0]:
> * The machines that host the buildds still seem to have a very
> unreliable kernel. Is there any update on this?

Quite a few serious hppa specific bugs have been fixed upstream over
the past 6 months. This is worth revisiting.

Is upstream stable enough for a buildd?  I don't know since I'm not aware
of any attempts to run a buildd with those kernels.

Is the answer to that question still germane?
If so, I'm willing to setup a local buildd and try it. But I will need
more time and some commitment that if it works, hppa remain in testing
release (that's all I personally care about - I don't care about "stable"
releases.)


> [1] http://lists.debian.org/debian-project/2009/05/msg00080.html

Can we have the minutes for this meeting?

Also, I'd like to ask HPPA debs be kept in "testing" staging area,
just never promoted when the release is cut.  This will let people
continue using HPPA without having to suffer with the !hppa breakage
that lives in unstable.

thanks,
grant
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From - Thu Nov 08 21:04:18 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH, RFC] fix parisc runtime hangs wrt pa_tlb_lock
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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John David Anglin wrote:
>> Since many kernel versions I regularly faced reproducibly kernel hangs when
>> compiling some bigger files. The machine suddenly just seemed to hang.
>>
>> With spinlock debugging turned on I found this:
>>
>> BUG: spinlock recursion on CPU#0, tool/7263
>>  lock: 10644000, .magic: dead4ead, .owner: tool/7263, .owner_cpu: 0
>> Backtrace:
>>  [<10113a94>] show_stack+0x18/0x28
>>
>> BUG: spinlock lockup on CPU#0, tool/7263, 10644000
>> Backtrace:
>>  [<10113a94>] show_stack+0x18/0x28
>>
>> BUG: soft lockup - CPU#0 stuck for 61s! [tool:7263]
>> IASQ: 00000000 00000000 IAOQ: 102d55dc 102d557c
>>  IIR: 03c008b3    ISR: 00000000  IOR: 00000000
>>  CPU:        0   CR30: 7d1a4000 CR31: 11111111
>>  ORIG_R28: 00000000
>>  IAOQ[0]: _raw_spin_lock+0x15c/0x1c0
>>  IAOQ[1]: _raw_spin_lock+0xfc/0x1c0
>>  RP(r2): _raw_spin_lock+0x18c/0x1c0
>> Backtrace:
>>  [<102d560c>] _raw_spin_lock+0x18c/0x1c0
>>
>> Kernel panic - not syncing: softlockup: hung tasks
>> Backtrace:
>>  [<10113a94>] show_stack+0x18/0x28
> 
> I have tested the proposed change using 2.6.30-rc6 and a modified version
> of 2.6.22.10.  I tested using SMP kernels running on a rp3440 and UP
> kernels on a c3750.  I also tested changing the macros to just use
> preempt_disable/preempt_enable.
> 
> The patch doesn't cause any new problems as far as I can tell.  

That's good. Thanks for testing !

> However,
> it doesn't fix any of the problems that I currently see on these two
> machines.  In particular, I see the occasional gcc testsuite timeout
> using SMP kernels.  Programs that usually take a few seconds to run
> timeout after three minutes.  These timeouts don't occur with UP kernels.

Ok, it fixes at least a kernel hang I faced regularily with my compilations...

> On the rp3440, the spinlock is definitely needed.  With just
> preempt_disable/preempt_enable, a crash occurs during bootstrap
> at the point unused memory is recovered.  Thus, the tlb purge
> issue referred to in the preceeding comment affects more than
> just N class.
> 
> On the otherhand, it doesn't seem necessary to disable interrupts
> during the purge with UP kernels.  

My kernel crashes happened with UP-kernels on a B2000 (1 CPU).
So, I still have the feeling that it's necessary to disable interrupts 
on UP kernels as well.

The new cleaned-up attached patch below shows, that arch/parisc/kernel/pci-dma.c
is affected. My kernel crashes always happened when the machine was pretty 
much loaded, during memory pressure when the system still wanted to load
something from disk.
In pci-dma.c the TLB flushing code is called from the DMA handlers, so
it does indicate that IRQ would need to be disabled.
One example I could imagine (with a UP-kernel):
- Process A runs some code, gets into kernel and executes clear_user_page() and locks
  the pa_tlb_lock spinlock (inside the critical section).
- Suddenly Process B gets data from disk via DMA handlers in pci-dma.c
- DMA-Interrupt kicks in, the DMA handler tries to get the pa_tlb_lock and fails
  since process A still holds the lock
-> machine deadlocks and kernel starts reporting about "hung tasks after 61seconds".
  (just search the mailing list for such reports..)

So, even a UP-kernel is affected.

> With SMP kernels, it would be nice
> to know if the lockup was caused by an interruption during the tlb
> purge, or a preemption issue.
> 
> I have the sense that disabling interrupts is wrong.  That is any
> given CPU can only generate one PxTLB inter processor broadcast
> at a time.  Disabling interrupts could cause a deadlock if a TLB
> purge was needed while the purge code was executing.
> 
> The other alternative is to allow the processor that holds the lock
> to enter the flush code.  This would fix the deadlock.  Don't know how
> to code this (atomic compare and exchange?).
> 
> The preempt_disable/preempt_enable crash on the rp3440 made me wonder
> if all tlb purge operations are properly protected with the tlb spinlock.
> I think we need to look at flush_tlb_all_local and copy_user_page_asm.
> They don't seem protected.

New patch attached.

Helge

diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index 1f6fd4f..217588e 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -18,8 +18,8 @@
  */
 extern spinlock_t pa_tlb_lock;
 
-#define purge_tlb_start(x) spin_lock(&pa_tlb_lock)
-#define purge_tlb_end(x) spin_unlock(&pa_tlb_lock)
+#define purge_tlb_start(flags)	spin_lock_irqsave(&pa_tlb_lock, flags)
+#define purge_tlb_end(flags)	spin_unlock_irqrestore(&pa_tlb_lock, flags)
 
 extern void flush_tlb_all(void);
 extern void flush_tlb_all_local(void *);
@@ -64,13 +64,14 @@ static inline void flush_tlb_page(struct vm_area_struct *vma,
 	unsigned long addr)
 {
 	/* For one page, it's not worth testing the split_tlb variable */
+	unsigned long flags;
 
 	mb();
 	mtsp(vma->vm_mm->context,1);
-	purge_tlb_start();
+	purge_tlb_start(flags);
 	pdtlb(addr);
 	pitlb(addr);
-	purge_tlb_end();
+	purge_tlb_end(flags);
 }
 
 void __flush_tlb_range(unsigned long sid,
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 837530e..e3c55f7 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -400,10 +400,11 @@ void clear_user_page_asm(void *page, unsigned long vaddr)
 {
 	/* This function is implemented in assembly in pacache.S */
 	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
+	unsigned long flags;
 
-	purge_tlb_start();
+	purge_tlb_start(flags);
 	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end();
+	purge_tlb_end(flags);
 }
 
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
@@ -444,20 +445,22 @@ extern void clear_user_page_asm(void *page, unsigned long vaddr);
 
 void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 {
+	unsigned long flags;
 	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start();
+	purge_tlb_start(flags);
 	pdtlb_kernel(page);
-	purge_tlb_end();
+	purge_tlb_end(flags);
 	clear_user_page_asm(page, vaddr);
 }
 EXPORT_SYMBOL(clear_user_page);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
+	unsigned long flags;
 	flush_kernel_dcache_page_asm(addr);
-	purge_tlb_start();
+	purge_tlb_start(flags);
 	pdtlb_kernel(addr);
-	purge_tlb_end();
+	purge_tlb_end(flags);
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
@@ -490,8 +493,9 @@ void __flush_tlb_range(unsigned long sid, unsigned long start,
 	if (npages >= 512)  /* 2MB of space: arbitrary, should be tuned */
 		flush_tlb_all();
 	else {
+		unsigned long flags;
 		mtsp(sid, 1);
-		purge_tlb_start();
+		purge_tlb_start(flags);
 		if (split_tlb) {
 			while (npages--) {
 				pdtlb(start);
@@ -504,7 +508,7 @@ void __flush_tlb_range(unsigned long sid, unsigned long start,
 				start += PAGE_SIZE;
 			}
 		}
-		purge_tlb_end();
+		purge_tlb_end(flags);
 	}
 }
 
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 7d927ea..b8ec5a0 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -90,12 +90,13 @@ static inline int map_pte_uncached(pte_t * pte,
 	if (end > PMD_SIZE)
 		end = PMD_SIZE;
 	do {
+		unsigned long flags;
 		if (!pte_none(*pte))
 			printk(KERN_ERR "map_pte_uncached: page already exists\n");
 		set_pte(pte, __mk_pte(*paddr_ptr, PAGE_KERNEL_UNC));
-		purge_tlb_start();
+		purge_tlb_start(flags);
 		pdtlb_kernel(orig_vaddr);
-		purge_tlb_end();
+		purge_tlb_end(flags);
 		vaddr += PAGE_SIZE;
 		orig_vaddr += PAGE_SIZE;
 		(*paddr_ptr) += PAGE_SIZE;
@@ -168,11 +169,12 @@ static inline void unmap_uncached_pte(pmd_t * pmd, unsigned long vaddr,
 	if (end > PMD_SIZE)
 		end = PMD_SIZE;
 	do {
+		unsigned long flags;
 		pte_t page = *pte;
 		pte_clear(&init_mm, vaddr, pte);
-		purge_tlb_start();
+		purge_tlb_start(flags);
 		pdtlb_kernel(orig_vaddr);
-		purge_tlb_end();
+		purge_tlb_end(flags);
 		vaddr += PAGE_SIZE;
 		orig_vaddr += PAGE_SIZE;
 		pte++;

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] fix irq compile bugs in arch/parisc/kernel/irq.c
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Fix miscompilation in arch/parisc/kernel/irq.c:
/mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/arch/parisc/kernel/irq.c:123: warning: passing arg 1 of `cpumask_setall' from incompatible pointer type
/mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/arch/parisc/kernel/irq.c:141: warning: passing arg 1 of `cpumask_copy' from incompatible pointer type
/mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/arch/parisc/kernel/irq.c:300: warning: passing arg 1 of `cpumask_copy' from incompatible pointer type
/mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6/arch/parisc/kernel/irq.c:357: warning: passing arg 2 of `cpumask_copy' from incompatible pointer type

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 4ea4229..570a335 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -120,7 +120,7 @@ int cpu_check_affinity(unsigned int irq, const struct cpumask *dest)
 	if (CHECK_IRQ_PER_CPU(irq)) {
 		/* Bad linux design decision.  The mask has already
 		 * been set; we must reset it */
-		cpumask_setall(&irq_desc[irq].affinity);
+		cpumask_setall(irq_desc[irq].affinity);
 		return -EINVAL;
 	}
 
@@ -138,7 +138,7 @@ static void cpu_set_affinity_irq(unsigned int irq, const struct cpumask *dest)
 	if (cpu_dest < 0)
 		return;
 
-	cpumask_copy(&irq_desc[irq].affinity, dest);
+	cpumask_copy(irq_desc[irq].affinity, dest);
 }
 #endif
 
@@ -297,7 +297,7 @@ int txn_alloc_irq(unsigned int bits_wide)
 unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 {
 #ifdef CONFIG_SMP
-	cpumask_copy(&irq_desc[irq].affinity, cpumask_of(cpu));
+	cpumask_copy(irq_desc[irq].affinity, cpumask_of(cpu));
 #endif
 
 	return per_cpu(cpu_data, cpu).txn_addr;
@@ -354,7 +354,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	irq = eirr_to_irq(eirr_val);
 
 #ifdef CONFIG_SMP
-	cpumask_copy(&dest, &irq_desc[irq].affinity);
+	cpumask_copy(&dest, irq_desc[irq].affinity);
 	if (CHECK_IRQ_PER_CPU(irq_desc[irq].status) &&
 	    !cpu_isset(smp_processor_id(), dest)) {
 		int cpu = first_cpu(dest);
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From: Christoph Hellwig <hch@lst.de>
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Subject: Re: [RFC] remove dead code from sys_parisc32.c
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ping?

On Wed, Nov 05, 2008 at 03:08:10PM +0100, Christoph Hellwig wrote:
> Anyone wants to pick this one up?
> 
> On Sun, Aug 17, 2008 at 04:41:51AM +0200, Christoph Hellwig wrote:
> > Unless I'm totally missing something get_fd_set32/set_fd_set32 are
> > completely unused.
> > 
> > 
> > Signed-off-by: Christoph Hellwig <hch@lst.de>
> > 
> > Index: linux-2.6/arch/parisc/kernel/sys_parisc32.c
> > ===================================================================
> > --- linux-2.6.orig/arch/parisc/kernel/sys_parisc32.c	2008-08-16 23:40:26.000000000 -0300
> > +++ linux-2.6/arch/parisc/kernel/sys_parisc32.c	2008-08-16 23:40:46.000000000 -0300
> > @@ -284,68 +284,6 @@ int cp_compat_stat(struct kstat *stat, s
> >  	return err;
> >  }
> >  
> > -/*** copied from mips64 ***/
> > -/*
> > - * Ooo, nasty.  We need here to frob 32-bit unsigned longs to
> > - * 64-bit unsigned longs.
> > - */
> > -
> > -static inline int
> > -get_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
> > -{
> > -	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
> > -	if (ufdset) {
> > -		unsigned long odd;
> > -
> > -		if (!access_ok(VERIFY_WRITE, ufdset, n*sizeof(u32)))
> > -			return -EFAULT;
> > -
> > -		odd = n & 1UL;
> > -		n &= ~1UL;
> > -		while (n) {
> > -			unsigned long h, l;
> > -			__get_user(l, ufdset);
> > -			__get_user(h, ufdset+1);
> > -			ufdset += 2;
> > -			*fdset++ = h << 32 | l;
> > -			n -= 2;
> > -		}
> > -		if (odd)
> > -			__get_user(*fdset, ufdset);
> > -	} else {
> > -		/* Tricky, must clear full unsigned long in the
> > -		 * kernel fdset at the end, this makes sure that
> > -		 * actually happens.
> > -		 */
> > -		memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
> > -	}
> > -	return 0;
> > -}
> > -
> > -static inline void
> > -set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
> > -{
> > -	unsigned long odd;
> > -	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
> > -
> > -	if (!ufdset)
> > -		return;
> > -
> > -	odd = n & 1UL;
> > -	n &= ~1UL;
> > -	while (n) {
> > -		unsigned long h, l;
> > -		l = *fdset++;
> > -		h = l >> 32;
> > -		__put_user(l, ufdset);
> > -		__put_user(h, ufdset+1);
> > -		ufdset += 2;
> > -		n -= 2;
> > -	}
> > -	if (odd)
> > -		__put_user(*fdset, ufdset);
> > -}
> > -
> >  struct msgbuf32 {
> >      int mtype;
> >      char mtext[1];
> ---end quoted text---
---end quoted text---
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From - Thu Nov 08 21:04:18 2018
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> On Wed, Nov 05, 2008 at 03:08:10PM +0100, Christoph Hellwig wrote:
> > Anyone wants to pick this one up?
> > 
> > On Sun, Aug 17, 2008 at 04:41:51AM +0200, Christoph Hellwig wrote:
> > > Unless I'm totally missing something get_fd_set32/set_fd_set32 are
> > > completely unused.

In theory, they were removed in 2004 by this proposed change:
http://lkml.org/lkml/2004/4/17/37

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Jun 08, 2009 at 10:17:51AM -0400, John David Anglin wrote:
> > On Wed, Nov 05, 2008 at 03:08:10PM +0100, Christoph Hellwig wrote:
> > > Anyone wants to pick this one up?
> > > 
> > > On Sun, Aug 17, 2008 at 04:41:51AM +0200, Christoph Hellwig wrote:
> > > > Unless I'm totally missing something get_fd_set32/set_fd_set32 are
> > > > completely unused.
> 
> In theory, they were removed in 2004 by this proposed change:
> http://lkml.org/lkml/2004/4/17/37

The users were removed, the helpers stayed.  Kyle promised to put the
patch to remove them in last year, but somehow the patch got lost a
couple of times :)

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Firstly, thanks for your mail, apologies that I haven't replied sooner,
we've had EU and local elections, so I've been busy runnign around with
leaflets, knocking on doors, kissing babies etc. like any politician. No
expenses though...

On Sat, Jun 06, 2009 at 12:36:01PM -0600, Grant Grundler wrote:
> Carlos O'Donnell asked some questions in response to [0] and I never
> saw any response.  Can an attendee of the above meeting please reply
> this email from Carlos?
>     http://lists.debian.org/debian-release/2009/04/msg00303.html
> 

I'm not sure what replies you'd like... there's certainly been some
follow ups to that mail.

> I also never got a response to my offer here:
>     http://lists.debian.org/debian-release/2009/04/msg00339.html
> 

Indeed, and that's worrying. I would have expected a HPPA porter (if
indeed one still exists) to have replied to that.

> Quite a few serious hppa specific bugs have been fixed upstream over
> the past 6 months. This is worth revisiting.
> 
> Is upstream stable enough for a buildd?  I don't know since I'm not aware
> of any attempts to run a buildd with those kernels.
> 

Neither do we, we're not HPPA porters :)
We did go through this before with newer kernels, and it didn't help
FWIW.

> Is the answer to that question still germane?

Ish. We still have the issue that you can't actually buy HPPAs any more,
and various bits and pieces from the Arch Requalification list.

[change of order by me below]
> Also, I'd like to ask HPPA debs be kept in "testing" staging area,
> just never promoted when the release is cut.  This will let people
> continue using HPPA without having to suffer with the !hppa breakage
> that lives in unstable. 

> (that's all I personally care about - I don't care about "stable"
> releases.)

This is one of the major problems for the port. Testing exists to create
the next stable release. Essentially, testing *is* the next stable,
except that it's a little volatile for a number of months... :)

> Can we have the minutes for this meeting?

I'm afraid they're not publicly available, but I will be posting a
mail to d-d-a real-soon-now(tm), apologies for the delays in this, it
was a rather full meeting.

Hope this helps,
Neil
-- 
A. Because it breaks the logical sequence of discussion
Q. Why is top posting bad?
gpg key - http://www.halon.org.uk/pubkey.txt ; the.earth.li A40F862E



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On Mon, Jun 8, 2009 at 11:26 PM, Neil McGovern<maulkin@halon.org.uk> wrote:
> On Sat, Jun 06, 2009 at 12:36:01PM -0600, Grant Grundler wrote:
>> Is the answer to that question still germane?
>
> Ish. We still have the issue that you can't actually buy HPPAs any more,

When did "being a marketed platform" become a criteria for inclusion?
Is Debian the new Ubuntu? :-P

> I'm afraid they're not publicly available, but I will be posting a
> mail to d-d-a real-soon-now(tm), apologies for the delays in this, it
> was a rather full meeting.

Failing this, could we please have a detailed rationale for the
decision? I already posted a reply to this thread asking for this,
which seems to have been ignored. Of course I understand you were busy
with EU elections, still, any kind of "ACK" would be nice.

Thanks,
T-Bone


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On Tue, Jun 09, 2009 at 01:44:27AM +0200, Thibaut VARENE wrote:
> > Ish. We still have the issue that you can't actually buy HPPAs any more,
>=20
> When did "being a marketed platform" become a criteria for inclusion?
> Is Debian the new Ubuntu? :-P
>=20

Well, back in 2005...
http://lists.debian.org/debian-devel-announce/2005/03/msg00012.html

However, I didn't mean it as a 'you must be able to get these from HP'.
You can't find them on ebay (for the three days I looked), and this
would indicate that it's unlikely that there's going to be sufficient
new porters to make this work.

> Failing this, could we please have a detailed rationale for the
> decision?

It'll be in the d-d-a post, or linked from the post :)

Hope this helps,
Neil
--=20
< linuxpoet> rails is a perversion
< mc> someone who use pgsql as calculator shouldnt talk of perversion.

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From - Thu Nov 08 21:04:19 2018
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On Tue, Jun 09, 2009 at 10:29:54AM +0100, Neil McGovern wrote:
> However, I didn't mean it as a 'you must be able to get these from HP'.
> You can't find them on ebay (for the three days I looked), and this
> would indicate that it's unlikely that there's going to be sufficient
> new porters to make this work.

your ebay is broken.

A simple search for C3750 (an quite fast parisc workstation) on ebay.de
gives me four hits for complete systems. And there are other workstations
and servers on ebay.

Thomas.

-- 
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Neil McGovern wrote:
> On Tue, Jun 09, 2009 at 01:44:27AM +0200, Thibaut VARENE wrote:
>   
>>> Ish. We still have the issue that you can't actually buy HPPAs any more,
>>>       
>> When did "being a marketed platform" become a criteria for inclusion?
>> Is Debian the new Ubuntu? :-P
>>
>>     
>
> Well, back in 2005...
> http://lists.debian.org/debian-devel-announce/2005/03/msg00012.html
>
> However, I didn't mean it as a 'you must be able to get these from HP'.
> You can't find them on ebay (for the three days I looked), and this
> would indicate that it's unlikely that there's going to be sufficient
> new porters to make this work.
>
>   

www.gall.de and some more others
>> Failing this, could we please have a detailed rationale for the
>> decision?
>>     
>
> It'll be in the d-d-a post, or linked from the post :)
>
> Hope this helps,
> Neil
>   

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> > Well, back in 2005...
> > http://lists.debian.org/debian-devel-announce/2005/03/msg00012.html
> >
> > However, I didn't mean it as a 'you must be able to get these from HP'.
> > You can't find them on ebay (for the three days I looked), and this
> > would indicate that it's unlikely that there's going to be sufficient
> > new porters to make this work.
> >
> >   
> 
> www.gall.de and some more others

And in the US,
http://www.cypress-tech.com/
http://www.more-computers.com/

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hi Sune, all,

Sune Vuorela wrote:
> On 2009-06-08, Thibaut VARENE <varenet@debian.org> wrote:
>> Failing this, could we please have a detailed rationale for the
>> decision?
> 
> I'm not in any way involved with the decision, but I support it.
> 
> I have in the past had some issues with some of the packages I
> (co)-maintain in debian on hppa, and I have in the past spent much more
> time on those packages on hppa than its userbase deserve. And I'm not a
> hppa porter.

Yes, there have been issues.

> I personally don't mind that we in debian supports many architectures,
> but it should mainly be the porters who are responsible for fixing
> architecture weirdnesses, not the package maintainers.

Sure.
 
> I have really missed this from the hppa porters. It might be that hppa
> porters don't care for Qt on hppa. It might be that hppa porters don't
> care for KDE on hppa. 

I think that's not fair.
I'm a big KDE and Qt fan and when you reported the issues, I stepped in.

You had problems with the locking functions in Qt. I did sent you
fixes for that to fix it in the qt code base.
This was one of the threads:  http://www.mail-archive.com/debian-hppa@lists.debian.org/msg05888.html
I have to admit, that I didn't checked if you integrated them yet, but since I didn't heard back, I expected you did.

Then, as a next step we stepped up to fix those Qt locking functions
at the place where they really needed to be fixed in the end, which is the gcc as atomic locking builtins.
Even this was integrated upstream:
http://permalink.gmane.org/gmane.comp.gcc.patches/166978

> But. As long as hppa is a release architecture in
> Debian, we have to have it working. And I have expected more help than I
> actually got.
> 
> There has in the past 6-8 month been random segfaults of
> anything from make over moc to dpkg on the hppa buildds making it hard
> to get stuff built. It doesn't seem like anyone have actually worked on
> this, except the buildd admin giving the packages back and next time
> they succeeded.

Sometimes finding kernel bugs isn't easy.
I wouldn't be astonished, if this patch fixes those issues:
http://patchwork.kernel.org/patch/28458/
It still is on discussion on the hppa-kernel-list.

> It seems that the buildd's have issues with actually being on line, and
> it can take 1-3 days for the buildd admins to actually notice this.
> 
> Up to the lenny release there was the "you can crash a hppa machine by
> building ruby"-issue, where the suggested solution was "Let's not ship
> ruby and instead let anyone with a account crash our boxes".

The kernel crash was finally fixed by:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c61c25eb02757ecf697015ef4ae3675c5e114e2e
 
> And in general, I have the impression that "random unexplainable
> failures" is just too common for hppa to actually be able to support it
> in debian. And I also have the impression that the porters think that
> "random unexplainable failures" is fully acceptable.

No, it's not.
Again, kernel bugs are sometimes hard to find.
I still think that http://patchwork.kernel.org/patch/28458/ may fix a few.
The only outstanding bug I still know of is that we sometimes face uid/gid issues.
This still needs analysis.

All that said, personally I'm currently really happy about the hppa unstable port.
I'm regularly compiling some really big closed-source application on this platform
and gcc-3.4 and gij-4.4 are doing a really good thing. Furthermore, the already started
migration to NPTL (from linuxthreads) is great, from which I expect even better results.
For me hppa unstable is currently in such a good shape in which it hasn't been up to now.
So, dropping it now at _this_ _stage_ from unstable would be really sad after such a long 
(and imho sucessful) way.

Best regards,
Helge



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Subject: [patch 1/1] parisc: remove obsolete hw_interrupt_type
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From: Thomas Gleixner <tglx@linutronix.de>

The defines and typedefs (hw_interrupt_type, no_irq_type, irq_desc_t) have
been kept around for migration reasons.  After more than two years it's
time to remove them finally.

This patch cleans up one of the remaining users.  When all such patches
hit mainline we can remove the defines and typedefs finally.

Impact: cleanup

Convert the last remaining users to struct irq_chip and remove the
define.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/parisc/kernel/irq.c |    2 +-
 drivers/parisc/dino.c    |    2 +-
 drivers/parisc/eisa.c    |    2 +-
 drivers/parisc/gsc.c     |    4 ++--
 drivers/parisc/gsc.h     |    2 +-
 drivers/parisc/iosapic.c |    2 +-
 drivers/parisc/superio.c |    2 +-
 7 files changed, 8 insertions(+), 8 deletions(-)

diff -puN arch/parisc/kernel/irq.c~parisc-remove-obsolete-hw_interrupt_type arch/parisc/kernel/irq.c
--- a/arch/parisc/kernel/irq.c~parisc-remove-obsolete-hw_interrupt_type
+++ a/arch/parisc/kernel/irq.c
@@ -144,7 +144,7 @@ static int cpu_set_affinity_irq(unsigned
 }
 #endif
 
-static struct hw_interrupt_type cpu_interrupt_type = {
+static struct irq_chip cpu_interrupt_type = {
 	.typename	= "CPU",
 	.startup	= cpu_startup_irq,
 	.shutdown	= cpu_disable_irq,
diff -puN drivers/parisc/dino.c~parisc-remove-obsolete-hw_interrupt_type drivers/parisc/dino.c
--- a/drivers/parisc/dino.c~parisc-remove-obsolete-hw_interrupt_type
+++ a/drivers/parisc/dino.c
@@ -353,7 +353,7 @@ static unsigned int dino_startup_irq(uns
 	return 0;
 }
 
-static struct hw_interrupt_type dino_interrupt_type = {
+static struct irq_chip dino_interrupt_type = {
 	.typename	= "GSC-PCI",
 	.startup	= dino_startup_irq,
 	.shutdown	= dino_disable_irq,
diff -puN drivers/parisc/eisa.c~parisc-remove-obsolete-hw_interrupt_type drivers/parisc/eisa.c
--- a/drivers/parisc/eisa.c~parisc-remove-obsolete-hw_interrupt_type
+++ a/drivers/parisc/eisa.c
@@ -188,7 +188,7 @@ static unsigned int eisa_startup_irq(uns
 	return 0;
 }
 
-static struct hw_interrupt_type eisa_interrupt_type = {
+static struct irq_chip eisa_interrupt_type = {
 	.typename =	"EISA",
 	.startup =	eisa_startup_irq,
 	.shutdown =	eisa_disable_irq,
diff -puN drivers/parisc/gsc.c~parisc-remove-obsolete-hw_interrupt_type drivers/parisc/gsc.c
--- a/drivers/parisc/gsc.c~parisc-remove-obsolete-hw_interrupt_type
+++ a/drivers/parisc/gsc.c
@@ -148,7 +148,7 @@ static unsigned int gsc_asic_startup_irq
 	return 0;
 }
 
-static struct hw_interrupt_type gsc_asic_interrupt_type = {
+static struct irq_chip gsc_asic_interrupt_type = {
 	.typename =	"GSC-ASIC",
 	.startup =	gsc_asic_startup_irq,
 	.shutdown =	gsc_asic_disable_irq,
@@ -158,7 +158,7 @@ static struct hw_interrupt_type gsc_asic
 	.end =		no_end_irq,
 };
 
-int gsc_assign_irq(struct hw_interrupt_type *type, void *data)
+int gsc_assign_irq(struct irq_chip *type, void *data)
 {
 	static int irq = GSC_IRQ_BASE;
 	struct irq_desc *desc;
diff -puN drivers/parisc/gsc.h~parisc-remove-obsolete-hw_interrupt_type drivers/parisc/gsc.h
--- a/drivers/parisc/gsc.h~parisc-remove-obsolete-hw_interrupt_type
+++ a/drivers/parisc/gsc.h
@@ -38,7 +38,7 @@ struct gsc_asic {
 int gsc_common_setup(struct parisc_device *parent, struct gsc_asic *gsc_asic);
 int gsc_alloc_irq(struct gsc_irq *dev);			/* dev needs an irq */
 int gsc_claim_irq(struct gsc_irq *dev, int irq);	/* dev needs this irq */
-int gsc_assign_irq(struct hw_interrupt_type *type, void *data);
+int gsc_assign_irq(struct irq_chip *type, void *data);
 int gsc_find_local_irq(unsigned int irq, int *global_irq, int limit);
 void gsc_fixup_irqs(struct parisc_device *parent, void *ctrl,
 		void (*choose)(struct parisc_device *child, void *ctrl));
diff -puN drivers/parisc/iosapic.c~parisc-remove-obsolete-hw_interrupt_type drivers/parisc/iosapic.c
--- a/drivers/parisc/iosapic.c~parisc-remove-obsolete-hw_interrupt_type
+++ a/drivers/parisc/iosapic.c
@@ -729,7 +729,7 @@ static int iosapic_set_affinity_irq(unsi
 }
 #endif
 
-static struct hw_interrupt_type iosapic_interrupt_type = {
+static struct irq_chip iosapic_interrupt_type = {
 	.typename =	"IO-SAPIC-level",
 	.startup =	iosapic_startup_irq,
 	.shutdown =	iosapic_disable_irq,
diff -puN drivers/parisc/superio.c~parisc-remove-obsolete-hw_interrupt_type drivers/parisc/superio.c
--- a/drivers/parisc/superio.c~parisc-remove-obsolete-hw_interrupt_type
+++ a/drivers/parisc/superio.c
@@ -325,7 +325,7 @@ static unsigned int superio_startup_irq(
 	return 0;
 }
 
-static struct hw_interrupt_type superio_interrupt_type = {
+static struct irq_chip superio_interrupt_type = {
 	.typename =	SUPERIO,
 	.startup =	superio_startup_irq,
 	.shutdown =	superio_disable_irq,
_
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From - Thu Nov 08 21:04:19 2018
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From: Luk Claes <luk@debian.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
Subject: Re: HPPA and Squeeze
Date: Fri, 12 Jun 2009 08:49:26 +0200
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Grant Grundler wrote:
> +linux-parisc (hppa kernel, compiler and !debian tech forum)
> 
> Neil,
> thanks for the summary. I know this is an unpleasant business in general.
> 
> On Tue, Jun 02, 2009 at 03:07:35PM +0100, Neil McGovern wrote:
>> Hi,
>>
>> As mentioned previously[0], the release team haven't been happy with the
>> state of the HPPA port in Debian. After the release team meeting[1], it
>> has been decided that unfortunatly HPPA will not be supported for
>> Squeeze. This was after careful consideration, and wasn't an easy
>> decision.
>>
>> This means that ftpmasters will be asked to remove HPPA from testing and
>> unstable from the 30th June. It is suggested that HPPA porters may wish
>> to consider using debian-ports.org if they wish to continue with the
>> port.
>>
>> Regards,
>> Neil McGovern
>>
>> [0] http://lists.debian.org/debian-release/2009/04/msg00299.html
> 
> Carlos O'Donnell asked some questions in response to [0] and I never
> saw any response.  Can an attendee of the above meeting please reply
> this email from Carlos?
>
>     http://lists.debian.org/debian-release/2009/04/msg00303.html

Note that it's wrong to assume we will come with the answers. It's an
extra bad feeling we get that even the people that do respond when there
is a request regarding hppa porters don't know what the issues are...

> I also never got a response to my offer here:
>     http://lists.debian.org/debian-release/2009/04/msg00339.html

There was some discussion with DSA and they didn't seem willing to take
the offer as it would be very restricted regarding access and control
(too strongly firewalled if I remember correctly) for our
administrators. It's rather strange that you did not get any feedback in
that regard.

> And my response again to this question posted in [0]:
>> * The machines that host the buildds still seem to have a very
>> unreliable kernel. Is there any update on this?

It looks like the amount of random crashes has decreased and the amount
of random segfaults has increased, though does not look promising after
more than 2 years already of random issues like this.

> Is upstream stable enough for a buildd?  I don't know since I'm not aware
> of any attempts to run a buildd with those kernels.

Rather recent kernels have been tried and like said above seem to behave
better, but still very much subpar.

> Is the answer to that question still germane?
> If so, I'm willing to setup a local buildd and try it. But I will need
> more time and some commitment that if it works, hppa remain in testing
> release (that's all I personally care about - I don't care about "stable"
> releases.)

That's not how it works. testing is the preparation for the next stable
release, so staying in testing means fixing any important outstanding
porting issue and most importantly the random crashes and segfaults,
actively making sure there are no important issues with the hppa port
within Debian and committing to support the next stable release.

> Can we have the minutes for this meeting?

No, I didn't even get the chance myself to read them. A summary of the
minutes will be posted as usual in the next 'Bits from the Release Team'
though.

> Also, I'd like to ask HPPA debs be kept in "testing" staging area,
> just never promoted when the release is cut.  This will let people
> continue using HPPA without having to suffer with the !hppa breakage
> that lives in unstable.

This will get DSA, maintainers, release team and others keep being
frustrated that hppa issues are making their work harder and will only
be tolerated if there will finally be a clear commitment from the hppa
porters to deal with any present and future important porting issue in a
reasonable time frame.

The main problem we have with hppa is that important porter issues are
not dealt with in a reasonable time frame. The random crashes and
segfaults are lasting for years already!

Note that we do *NOT* intend to drop hppa from unstable, it being
mentioned at all was an unfortunate sign of the deep frustration of some...

Cheers

Luk

Debian Release Manager
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From - Thu Nov 08 21:04:19 2018
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Content-Type: text/plain; charset=ISO-8859-1
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Hello all,

Everybody is talking about the 'random crashes' and 'segfaults' in the HPPA
version.
Over here I'm using the hppa on a small HP-UX workstation, and that has an
uptime of 542 days!.
So it's not that unstable.
I even need to say that I had a lot more crashes with the x86 version then
with the hppa version.


Just to say that I'm personally not so unhappy with deb hppa, and that not
everything is bad.


B

On Fri, Jun 12, 2009 at 8:49 AM, Luk Claes <luk@debian.org> wrote:

>
> The main problem we have with hppa is that important porter issues are
> not dealt with in a reasonable time frame. The random crashes and
> segfaults are lasting for years already!
>
> Note that we do *NOT* intend to drop hppa from unstable, it being
> mentioned at all was an unfortunate sign of the deep frustration of some...
>
>
-- 
Schelstraete Bart
http://www.schelstraete.org
bart@schelstraete.org
Sent from Brussels, Brx, Belgium
Mae West <http://www.brainyquote.com/quotes/authors/m/mae_west.html>  - "I
like restraint, if it doesn't go too far."

--001636c5bf1cbd5a3b046c220024
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Hello all,<br><br>Everybody is talking about the &#39;random crashes&#39; a=
nd &#39;segfaults&#39; in the HPPA version.<br>Over here I&#39;m using the =
hppa on a small HP-UX workstation, and that has an uptime of 542 days!.<br>
So it&#39;s not that unstable. <br>I even need to say that I had a lot more=
 crashes with the x86 version then with the hppa version.<br><br><br>Just t=
o say that I&#39;m personally not so unhappy with deb hppa, and that not ev=
erything is bad.<br>
<br><br>B<br><br><div class=3D"gmail_quote">On Fri, Jun 12, 2009 at 8:49 AM=
, Luk Claes <span dir=3D"ltr">&lt;<a href=3D"mailto:luk@debian.org">luk@deb=
ian.org</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D=
"border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padd=
ing-left: 1ex;">
<br>
The main problem we have with hppa is that important porter issues are<br>
not dealt with in a reasonable time frame. The random crashes and<br>
segfaults are lasting for years already!<br>
<br>
Note that we do *NOT* intend to drop hppa from unstable, it being<br>
mentioned at all was an unfortunate sign of the deep frustration of some...=
<br>
<br>
</blockquote></div><br>-- <br>Schelstraete Bart<br><a href=3D"http://www.sc=
helstraete.org">http://www.schelstraete.org</a><br><a href=3D"mailto:bart@s=
chelstraete.org">bart@schelstraete.org</a><br>Sent from Brussels, Brx, Belg=
ium<br>
<a href=3D"http://www.brainyquote.com/quotes/authors/m/mae_west.html" targe=
t=3D"_blank">Mae West</a> =A0- &quot;I like restraint, if it doesn&#39;t go=
 too far.&quot;

--001636c5bf1cbd5a3b046c220024--



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 Hello all,

 Everybody is talking about the 'random crashes' and 'segfaults' in
the HPPA version.
 Over here I'm using the hppa on a small HP-UX workstation, and that
has an uptime of 542 days!.
 So it's not that unstable.
 I even need to say that I had a lot more crashes with the x86 version
then with the hppa version.


 Just to say that I'm personally not so unhappy with deb hppa, and
that not everything is bad.


 B

> On Fri, Jun 12, 2009 at 8:49 AM, Luk Claes <luk@debian.org> wrote:
>>
>> The main problem we have with hppa is that important porter issues are
>> not dealt with in a reasonable time frame. The random crashes and
>> segfaults are lasting for years already!
>>
>> Note that we do *NOT* intend to drop hppa from unstable, it being
>> mentioned at all was an unfortunate sign of the deep frustration of some=
...
>>
>
> --
> Schelstraete Bart
> http://www.schelstraete.org
> bart@schelstraete.org
> Sent from Brussels, Brx, Belgium
> Mae West =A0- "I like restraint, if it doesn't go too far."


--
Schelstraete Bart
http://www.schelstraete.org
bart@schelstraete.org
Sent from Brussels, Brx, Belgium
Erma Bombeck =A0- "Never have more children than you have car windows."



From - Thu Nov 08 21:04:19 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
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On Fri, 2009-06-12 at 09:55 +0200, Bart Schelstraete wrote:
> Hello all,
> 
>  Everybody is talking about the 'random crashes' and 'segfaults' in
> the HPPA version.
>  Over here I'm using the hppa on a small HP-UX workstation, and that
> has an uptime of 542 days!.
>  So it's not that unstable.
>  I even need to say that I had a lot more crashes with the x86 version
> then with the hppa version.

It seems to be related to what machine you actually have.  I run a B180
as my network gateway, handling firewall, web,
postfix/postgrey/spamassassin at quite a high volume on a domain.  I
also used to run it with a PCMCIA wireless card just for chuckles and
grins (although I stopped that two years ago when I got a linksys).  It
runs debian testing and has been completely stable.  I only reboot it
for updates and in the seven or so years I've been doing this, I haven't
had any segfaults or crashes ... have to say I only started using debian
kernels on it for the last four or so years, because there used to be
big problems with the ones they built.

>  Just to say that I'm personally not so unhappy with deb hppa, and
> that not everything is bad.

I think the main class of problem machines are anything with SMP ...
unfortunately, I don't have one, so can't verify.

James


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From - Thu Nov 08 21:04:19 2018
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On Fri, Jun 12, 2009 at 09:16:25AM -0500, James Bottomley wrote:
> On Fri, 2009-06-12 at 09:55 +0200, Bart Schelstraete wrote:
> > Hello all,
> > 
> >  Everybody is talking about the 'random crashes' and 'segfaults' in
> > the HPPA version.
> >  Over here I'm using the hppa on a small HP-UX workstation, and that
> > has an uptime of 542 days!.
> >  So it's not that unstable.
> >  I even need to say that I had a lot more crashes with the x86 version
> > then with the hppa version.
> 
> It seems to be related to what machine you actually have.

And the load - buildds for unstable seem to trip over issues that we
don't see elsewhere.

>   I run a B180
> as my network gateway, handling firewall, web,
> postfix/postgrey/spamassassin at quite a high volume on a domain.  I
> also used to run it with a PCMCIA wireless card just for chuckles and
> grins (although I stopped that two years ago when I got a linksys).  It
> runs debian testing and has been completely stable.  I only reboot it
> for updates and in the seven or so years I've been doing this, I haven't
> had any segfaults or crashes ... have to say I only started using debian
> kernels on it for the last four or so years, because there used to be
> big problems with the ones they built.
> 
> >  Just to say that I'm personally not so unhappy with deb hppa, and
> > that not everything is bad.
> 
> I think the main class of problem machines are anything with SMP ...
> unfortunately, I don't have one, so can't verify.

We've tried both SMP and non-SMP kernels.

-- 
dann frazier

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From - Thu Nov 08 21:04:19 2018
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From: Brian Szymanski <skibrianski@gmail.com>
Newsgroups: gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release,gmane.linux.ports.parisc
Subject: Re: HPPA and Squeeze
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>, 
 Bart Schelstraete <bart@schelstraete.org>,
 HPPA porters <debian-hppa@lists.debian.org>, 
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To: dann frazier <dannf@dannf.org>
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dann frazier wrote:
> On Fri, Jun 12, 2009 at 09:16:25AM -0500, James Bottomley wrote:
>   
>>>  Just to say that I'm personally not so unhappy with deb hppa, and
>>> that not everything is bad.
>>>       
>> I think the main class of problem machines are anything with SMP ...
>> unfortunately, I don't have one, so can't verify.
>>     
>
> We've tried both SMP and non-SMP kernels.
>   

FWIW, I've a j6700, running with an SMP kernel from testing, and it's
been rock solid for me.


-- 
Brian Szymanski
email:  skibrianski@gmail.com

Ex cibus merda. Ex merda humus. Ex humus cibus.


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dann frazier wrote:
<blockquote cite="mid:20090612153544.GA27867@lackof.org" type="cite">
  <pre wrap="">On Fri, Jun 12, 2009 at 09:16:25AM -0500, James Bottomley wrote:
  </pre>
  <blockquote type="cite">
    <blockquote type="cite">
      <pre wrap=""> Just to say that I'm personally not so unhappy with deb hppa, and
that not everything is bad.
      </pre>
    </blockquote>
    <pre wrap="">I think the main class of problem machines are anything with SMP ...
unfortunately, I don't have one, so can't verify.
    </pre>
  </blockquote>
  <pre wrap=""><!---->
We've tried both SMP and non-SMP kernels.
  </pre>
</blockquote>
<br>
FWIW, I've a j6700, running with an SMP kernel from testing, and it's
been rock solid for me.<br>
<br>
<br>
<pre class="moz-signature" cols="72">-- 
Brian Szymanski
email:  <a class="moz-txt-link-abbreviated" href="mailto:skibrianski@gmail.com">skibrianski@gmail.com</a>

Ex cibus merda. Ex merda humus. Ex humus cibus.
</pre>
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From - Thu Nov 08 21:04:20 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
Subject: Re: HPPA and Squeeze
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To: dann frazier <dannf@dannf.org>
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On Fri, Jun 12, 2009 at 5:35 PM, dann frazier<dannf@dannf.org> wrote:
> On Fri, Jun 12, 2009 at 09:16:25AM -0500, James Bottomley wrote:

>> It seems to be related to what machine you actually have.
>
> And the load - buildds for unstable seem to trip over issues that we
> don't see elsewhere.

"Workload" more to the point. Almost all my parisc boxen have been
running BOINC for years and never puked on it. I'm quite convinced the
issues buildds are suffering are much less random than people believe.
It's more likely that they are very uncommon corner cases.

FWIW, afaik "lafayette" - the autobuilder I recently provided - seems
to be running mostly fine. And as far as I (as the local admin) am
concerned, I believe my "response" time to problems (such as when the
first hardware that was committed to this autobuilder failed beyond
salvation and had to be entirely replaced) is acceptable. Let me know
if that weren't true ;-)

HTH
T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
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To: Thibaut VARENE <varenet@debian.org>
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On Sun, Jun 14, 2009 at 08:29:14PM +0200, Thibaut VARENE wrote:
> On Fri, Jun 12, 2009 at 5:35 PM, dann frazier<dannf@dannf.org> wrote:
> > On Fri, Jun 12, 2009 at 09:16:25AM -0500, James Bottomley wrote:
> 
> >> It seems to be related to what machine you actually have.
> >
> > And the load - buildds for unstable seem to trip over issues that we
> > don't see elsewhere.
> 
> "Workload" more to the point.

Yes, workload is what I meant.

> Almost all my parisc boxen have been
> running BOINC for years and never puked on it. I'm quite convinced the
> issues buildds are suffering are much less random than people believe.
> It's more likely that they are very uncommon corner cases.
> 
> FWIW, afaik "lafayette" - the autobuilder I recently provided - seems
> to be running mostly fine. And as far as I (as the local admin) am
> concerned, I believe my "response" time to problems (such as when the
> first hardware that was committed to this autobuilder failed beyond
> salvation and had to be entirely replaced) is acceptable. Let me know
> if that weren't true ;-)
> 
> HTH
> T-Bone
> 

-- 
dann frazier

--
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On 06/06/2009 11:25 PM, Helge Deller wrote:
> John David Anglin wrote:
>> On the rp3440, the spinlock is definitely needed.  With just
>> preempt_disable/preempt_enable, a crash occurs during bootstrap
>> at the point unused memory is recovered.  Thus, the tlb purge
>> issue referred to in the preceeding comment affects more than
>> just N class.
>>
>> On the otherhand, it doesn't seem necessary to disable interrupts
>> during the purge with UP kernels.
>
> My kernel crashes happened with UP-kernels on a B2000 (1 CPU).
> So, I still have the feeling that it's necessary to disable interrupts
> on UP kernels as well.

Hi Dave,

I did further testing. Especially I wanted to clarify if disabling
interrupts are necessary or not.

To test it, I added a WARN_ON(in_interrupt()) to the purge_tlb_start() macro like this:
+#define purge_tlb_start(flags)	WARN_ON(in_interrupt()); spin_lock_irqsave(&pa_tlb_lock, flags)
and did ran the compile-test which usually hang my system.

The result is that we really need to disable interrupts.
The WARN_ON() did triggered for me again as it always did hang the system.
This is with a UP-kernel (2.6.30-rc8) on a UP-machine (B2000):


Badness at arch/parisc/kernel/cache.c:461



      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI

PSW: 00000000000001101111100100001111 Tainted: G        W

r00-03  0006f90f 10640000 10112760 106f4c40

r04-07  5eadc000 2418e30c 0004eadc 113336f0

r08-11  2418e31c 0000007c 106f4a88 7c5b3c7c

r12-15  104c45ec 106c9da0 00001000 10000000

r16-19  00000fff 1067f13c 105e0560 00000100

r20-23  0000ff00 5eadc10a 5eadc100 00000040

r24-27  00000000 5eadcfc0 5eadd000 10640680

r28-31  106f4000 0000000a 106f4c80 471249e8

sr00-03  00000000 00000000 00000000 00000025

sr04-07  00000000 00000000 00000000 00000000



IASQ: 00000000 00000000 IAOQ: 10112774 10112778

  IIR: 03ffe01f    ISR: 0424013a  IOR: b72dcfc0

  CPU:        0   CR30: 106f4000 CR31: 11111111

  ORIG_R28: 106f4dc0

  IAOQ[0]: flush_kernel_dcache_page_addr+0x30/0xa0

  IAOQ[1]: flush_kernel_dcache_page_addr+0x34/0xa0

  RP(r2): flush_kernel_dcache_page_addr+0x1c/0xa0

Backtrace:

  [<10112760>] flush_kernel_dcache_page_addr+0x1c/0xa0



Sadly I didn't got a full backtrace.
The WARN_ON() triggered around 20 times during the phase where my machine was
pretty much loaded.
Interestingly it was always inflush_kernel_dcache_page_addr().

So, I still think my patch at http://patchwork.kernel.org/patch/28458/ should
be applied to all kernels.

Helge
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From - Thu Nov 08 21:04:20 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH, RFC] fix parisc runtime hangs wrt pa_tlb_lock
Date: Sun, 14 Jun 2009 19:20:47 -0400
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On Mon, 15 Jun 2009, Helge Deller wrote:

> On 06/06/2009 11:25 PM, Helge Deller wrote:
>> John David Anglin wrote:
>>> On the rp3440, the spinlock is definitely needed.  With just
>>> preempt_disable/preempt_enable, a crash occurs during bootstrap
>>> at the point unused memory is recovered.  Thus, the tlb purge
>>> issue referred to in the preceeding comment affects more than
>>> just N class.
>>>
>>> On the otherhand, it doesn't seem necessary to disable interrupts
>>> during the purge with UP kernels.
>>
>> My kernel crashes happened with UP-kernels on a B2000 (1 CPU).
>> So, I still have the feeling that it's necessary to disable interrupts
>> on UP kernels as well.
>
> Hi Dave,
>
> I did further testing. Especially I wanted to clarify if disabling
> interrupts are necessary or not.
>
> To test it, I added a WARN_ON(in_interrupt()) to the purge_tlb_start() 
> macro like this:
> +#define purge_tlb_start(flags)	WARN_ON(in_interrupt()); 
> spin_lock_irqsave(&pa_tlb_lock, flags)
> and did ran the compile-test which usually hang my system.
>
> The result is that we really need to disable interrupts.
> The WARN_ON() did triggered for me again as it always did hang the system.
> This is with a UP-kernel (2.6.30-rc8) on a UP-machine (B2000):
>
>
> Badness at arch/parisc/kernel/cache.c:461
>
>
>
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>
> PSW: 00000000000001101111100100001111 Tainted: G        W
>
> r00-03  0006f90f 10640000 10112760 106f4c40
>
> r04-07  5eadc000 2418e30c 0004eadc 113336f0
>
> r08-11  2418e31c 0000007c 106f4a88 7c5b3c7c
>
> r12-15  104c45ec 106c9da0 00001000 10000000
>
> r16-19  00000fff 1067f13c 105e0560 00000100
>
> r20-23  0000ff00 5eadc10a 5eadc100 00000040
>
> r24-27  00000000 5eadcfc0 5eadd000 10640680
>
> r28-31  106f4000 0000000a 106f4c80 471249e8
>
> sr00-03  00000000 00000000 00000000 00000025
>
> sr04-07  00000000 00000000 00000000 00000000
>
>
>
> IASQ: 00000000 00000000 IAOQ: 10112774 10112778
>
>  IIR: 03ffe01f    ISR: 0424013a  IOR: b72dcfc0
>
>  CPU:        0   CR30: 106f4000 CR31: 11111111
>
>  ORIG_R28: 106f4dc0
>
>  IAOQ[0]: flush_kernel_dcache_page_addr+0x30/0xa0
>
>  IAOQ[1]: flush_kernel_dcache_page_addr+0x34/0xa0
>
>  RP(r2): flush_kernel_dcache_page_addr+0x1c/0xa0
>
> Backtrace:
>
>  [<10112760>] flush_kernel_dcache_page_addr+0x1c/0xa0
>
>
>
> Sadly I didn't got a full backtrace.
> The WARN_ON() triggered around 20 times during the phase where my machine 
> was
> pretty much loaded.
> Interestingly it was always inflush_kernel_dcache_page_addr().
>
> So, I still think my patch at http://patchwork.kernel.org/patch/28458/ 
> should
> be applied to all kernels.

I am convinced that interrupts need to be disabled on SMP kernels to
prevent deadlock.  On UP kernels, I am not convinced that anything bad
happens if we do a tlb purge while handling an interrupt since we don't
have to worry about preventing bus conflicts.  The UP code can't
deadlock.  I'm thinking that we can stay with disabling preemption.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:20 2018
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.parisc
Subject: HPPA hang with PCI SERR or PARITY enabling
Date: Mon, 15 Jun 2009 13:24:18 +0300 (EEST)
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I found that my L1000 fails to boot wiath any new kernel (anything 
2.6.26+ I tried). In my case, it stops after tulip initialization and 
other people have seen it too:
http://www.mail-archive.com/debian-hppa@lists.debian.org/msg06301.html

The last lines are

tulip 0000:18:00.0: enabling device (0000 -> 0003)
tulip 0000:18:00.0: enabling SERR and PARITY (0003 -> 0143)

In some other cases, people see similar errors from sym53c8xx:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=519984

sym53c8xx 0000:d0:00.0: enabling device (0000 -> 0003)
sym53c8xx 0000:d0:00.0: enabling SERR and PARITY (0003 -> 0143)

In my case, Debians 2.6.26 UP kernel sometimes boots, I think I have 
also seen 2.6.30-rc2 booting once. Debian 2.6.26 SMP, 2.6.29 SMP and 
handcompiled newer kernels have failed the same. It does not fail on 
sym53c8xx for me.

I have only tried 64-bit kernels.

Full dmesg from my L1000:

Main Menu: Enter command or menu > bo
Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.14 root@penalosa Wed Oct  8 15:04:37 UTC 2008
Skipping extended partition 6 - beyond reach of IPL

Partition Start(MB) End(MB) Id Type
1               1      31   f0 Palo
2              32     156   83 ext2
5             157   33408   83 ext2

PALO(F0) partition contains:
    0/vmlinux64 6240197 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
Selected ramdisk: /initrd.img from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4784128 mediaptr 0x1000
Segment 1 load 00628000 size 403984 mediaptr 0x491000
Segment 2 load 0068c000 size 317824 mediaptr 0x4f4000
Loading ramdisk 7887983 bytes @ 3f868000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.29-2-parisc64-smp (Debian 2.6.29-5) (waldi@debian.org) (gcc version 4.3.3 (GCC) ) #1 SMP Mon May 18 14:55:30 UTC 2009
[    0.000000] unwind_init: start = 0x404bf0a4, end = 0x404eb424, entries = 11320
[    0.000000] WARNING: Out of order unwind entry! 00000000404c0fb4 and 00000000404c0fc4
[    0.000000] WARNING: Out of order unwind entry! 00000000404c0fc4 and 00000000404c0fd4
[    0.000000] FP[0] enabled: Rev 1 Model 16
[    0.000000] The 64-bit Kernel has started...
[    0.000000] console [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00005c90 00000491 00000000 00000002 2353fbcb 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000203
[    0.000000] CPUID vers 17 rev 8 (0x00000228)
[    0.000000] capabilities 0x1
[    0.000000] model 9000/800/L1000-44
[    0.000000] Total Memory: 3072 MB
[    0.000000] initrd: 7f868000-7ffedc6f
[    0.000000] initrd: reserving 3f868000-3ffedc6f (mem_max c0000000)
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 775680
[    0.000000] Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 12, 32768 bytes)
[17179569.184000] Console: colour dummy device 160x64
[17179569.204000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[17179569.244000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[17179569.764000] Memory: 3075708k/3145728k available (3164k kernel code, 69364k reserved, 1459k data, 312k init)
[17179569.772000] virtual kernel memory layout:
[17179569.772000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
[17179569.772000]     memory  : 0x0000000040000000 - 0x0000000100000000   (3072 MB)
[17179569.772000]       .init : 0x000000004068c000 - 0x00000000406da000   ( 312 kB)
[17179569.772000]       .data : 0x00000000404173d0 - 0x0000000040584000   (1459 kB)
[17179569.772000]       .text : 0x0000000040100000 - 0x00000000404173d0   (3164 kB)
[17179569.848000] Calibrating delay loop... 876.54 BogoMIPS (lpj=1753088)
[17179569.944000] Security Framework initialized
[17179569.952000] SELinux:  Disabled at boot.
[17179569.964000] Mount-cache hash table entries: 256
[17179570.064000] Initializing cgroup subsys ns
[17179570.072000] Initializing cgroup subsys cpuacct
[17179570.080000] Initializing cgroup subsys devices
[17179570.084000] Initializing cgroup subsys freezer
[17179570.092000] Initializing cgroup subsys net_cls
[17179570.104000] Brought up 1 CPUs
[17179570.348000] net_namespace: 1880 bytes
[17179570.356000] regulator: core version 0.5
[17179570.484000] NET: Registered protocol family 16
[17179570.496000] EISA bus registered
[17179570.504000] Searching for devices...
[17179571.080000] Found devices:
[17179571.084000] 1. Rhapsody DC- 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5c9, 0x00004 }
[17179571.096000] 2. Rhapsody DC- 440 at 0xfffffffffffa6000 [166] { 0, 0x0, 0x5c9, 0x00004 }
[17179571.104000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x095, 0x00009 }
[17179571.108000] 4. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
[17179571.116000] 5. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
[17179571.192000] 6. Elroy PCI Bridge at 0xfffffffffed32000 [0/1] { 13, 0x0, 0x782, 0x0000a }
[17179571.200000] 7. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
[17179571.208000] 8. Elroy PCI Bridge at 0xfffffffffed36000 [0/3] { 13, 0x0, 0x782, 0x0000a }
[17179571.216000] 9. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
[17179571.224000] 10. Elroy PCI Bridge at 0xfffffffffed3a000 [0/5] {
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         FLASH     ON         ON
LED State: Unexpected Reboot. Running non-OS code. Non-critical error detected.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
[17179572.328000] powersw: Soft power switch support not available.
[17179572.344000] bio: create slab <bio-0> at 0
[17179572.480000] NET: Registered protocol family 2
[17179572.540000] IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
[17179572.548000] TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
[17179572.624000] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[17179572.748000] TCP: Hash tables configured (established 262144 bind 65536)
[17179572.756000] TCP reno registered
[17179572.896000] NET: Registered protocol family 1
[17179572.900000] checking if image is initramfs... it is
[17179576.384000] Freeing initrd memory: 7703k freed
[17179576.396000] Chassis warnings not supported.
[17179576.404000] Performance monitoring counters enabled for Rhapsody DC- 440
[17179576.416000] audit: initializing netlink socket (disabled)
[17179576.428000] type=2000 audit(1245059087.144:1): initialized
[17179576.440000] VFS: Disk quotas dquot_6.5.2
[17179576.448000] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[17179576.472000] msgmni has been set to 6023
[17179576.484000] alg: No test for stdrng (krng)
[17179576.492000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[17179576.504000] io scheduler noop registered
[17179576.508000] io scheduler anticipatory registered
[17179576.512000] io scheduler deadline registered
[17179576.516000] io scheduler cfq registered (default)
[17179576.616000] PDC Stable Storage facility v0.30
[17179577.436000] STI GSC/PCI core graphics driver Version 0.9a
[17179577.464000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[17179577.476000] serial 0000:00:04.0: enabling device (0146 -> 0147)
[17179577.488000] 0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 70) is a 16550A
[17179577.496000] console handover: boot [ttyB0] -> real [ttyS0]
[17179577.512000] 0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 70) is a 16550A
[17179577.536000] 0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 70) is a 16550A
[17179577.552000] serial 0000:00:05.0: enabling device (0000 -> 0003)
[17179577.564000] serial 0000:00:05.0: enabling SERR and PARITY (0003 -> 0143)
[17179577.576000] 0000:00:05.0: ttyS3 at MMIO 0xfffffffff8005000 (irq = 71) is a 16550A
[17179577.588000] Couldn't register serial port 0000:00:05.0: -28
[17179577.688000] brd: module loaded
[17179577.816000] mice: PS/2 mouse device common for all mice
[17179577.824000] rtc-parisc rtc-parisc: rtc core: registered rtc-parisc as rtc0
[17179577.840000] TCP cubic registered
[17179577.956000] NET: Registered protocol family 17
[17179577.960000] registered taskstats version 1
[17179578.100000] rtc-parisc rtc-parisc: setting system clock to 2009-06-15 09:44:48 UTC (1245059088)
[17179578.112000] Freeing unused kernel memory: <0>------------[ cut here ]------------
[17179578.248000] Badness at /build/buildd/linux-2.6-2.6.29/debian/build/source_hppa_none/kernel/smp.c:329
[17179578.256000] 
[17179578.256000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[17179578.260000] PSW: 00001000000001100000000000001110 Not tainted
[17179578.268000] r00-03  000000000806000e 00000000406829c0 0000000040181194 0000000040590020
[17179578.272000] r04-07  00000000406791c0 000000004065e6a0 0000000000000000
[17179578.808000] r08-11  000000004065e6a0 0000000000000000 00000000406841c0 0000000000000001
[17179578.820000] r12-15  000000004067a9c0 0000000000000000 00000000406791c0 00000000000000ff
[17179578.828000] r16-19  00000000406809c0 00000000406879c0 00000000ff83a268 00000000406da000
[17179578.836000] r20-23  0000000000000000 00000000406da000 fffffffffffffffe 0000000000000001
[17179578.844000] r24-27  0000000000000000 000000004065e6a0 00000000404fdfa0 0000000049.236000] r28-31  000000000800000e 00000000ff8404a0 00000000ff840590 0000000000000000
[17179579.376000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[17179579.392000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[17179579.400000] 
[17179579.400000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040180e34 0000000040180e38
[17179579.408000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000002fe10040510
[17179579.416000]  CPU:        0   CR30: 00000000ff840000 CR31: 0000000009.812000]  ORIG_R28: 000000000800000e
[17179579.940000]  IAOQ[0]: smp_call_function_many+0x44/0x368
[17179579.948000]  IAOQ[1]: smp_call_function_many+0x48/0x368
[17179579.956000]  RP(r2): smp_call_function+0x3c/0x50
[17179579.960000] Backtrace:
[17179579.960000]  [<0000000040181194>] smp_call_function+0x3c/0x50
[17179579.964000]  [<00000000401a1504>] call_rcu+0x44/0x58
[17179580.216000] 
[17179580.348000] ------------[ cut here ]------------
[17179580.356000] Badness at /build/buildd/linux-2.6-2.6.29/debian/build/source_hppa_none/kernel/smp.c:226
[17179580.364000] 
[17179580.364000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[17179580.372000] PSW: 00001000000001101111111000001110 Tainted: G        W 
[17179580.376000] r00-03  000000ff0806fe0e 000000004067e1c0 0000000040180f1c 0000000000000000
[17179580.384000] r04-07  00000000406791c0 0000000005e6a0 0000000000000000
[17179580.924000] r08-11  000000004065e6a0 0000000000000000 00000000406841c0 0000000000000001
[17179580.936000] r12-15  000000004067a9c0 0000000000000000 00000000406791c0 00000000000000ff
[17179580.944000] r16-19  00000000406809c0 00000000406879c0 00000000ff83a268 0000000000000008
[17179580.952000] r20-23  00000000404fdfa0 0000000000000002 fffffffffffffffe 0000000000000001
[17179580.956000] r24-27  0000000000000000 000000004065e6a0 0000000000000001 000000004[17179581.340000] r28-31  000000000800000e 00000000ff840560 00000000ff840660 0000000000000008
[17179581.348000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[17179581.356000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[17179581.364000] 
[17179581.368000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040180cd0 0000000040180cd4
[17179581.376000]  IIR: 03ffe01f    ISR: 000: 000002fe100405e0
[17179581.908000]  CPU:        0
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
Begin: Loading essential drivers ... WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
[17179582.992000] SCSI subsystem initialized
WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
done.
Begin: Running /scripts/init-premount ... [17179583.808000] Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
[17179583.876000] tulip 0000:00:00.0: enabling device (0140 -> 0143)
[17179583.896000] tulip0: no phy info, aborting mtable build
[17179584.016000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
[17179584.040000] eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff8006000, 00:10:83:fe:9c:b0, IRQ 66.
[17179584.300000] tulip 0000:18:00.0: enabling device (0000 -> 0003)
[17179584.308000] tulip 0000:18:00.0: enabling SERR and PARITY (0003 -> 0143)

************* SYSTEM ALERT **************
SYSTEM NAME: scaspdb24
DATE: 06/15/2009 TIME: 09:44:55
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       OFF      FLASH         FLASH     ON         ON
LED State: Unrecognized state - Refer to LED Decoder on your Support CD.

0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
0x5800087000FF6292 00006D05 0F092C37 - type 11 = Timestamp 06/15/2009 09:44:55
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:a
*****************************************

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:04:20 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPPA hang with PCI SERR or PARITY enabling
Date: Mon, 15 Jun 2009 09:45:18 -0400 (EDT)
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> SYSTEM NAME: scaspdb24
> DATE: 06/15/2009 TIME: 09:44:55
> ALERT LEVEL: 7 = reserved
> 
> REASON FOR ALERT
> SOURCE: 0 = unknown, no source stated
> SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
> PROBLEM DETAIL: 0 = no problem detail
> 
> LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
>        OFF      FLASH         FLASH     ON         ON
> LED State: Unrecognized state - Refer to LED Decoder on your Support CD.
> 
> 0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
> 0x5800087000FF6292 00006D05 0F092C37 - type 11 = Timestamp 06/15/2009 09:44:55

I believe FF6292 is a HPMC.  Please collect and post the "ser pim" output
for the above.  It would also help if the location of the HPMC can be related
to your compiled kernel using objdump.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:20 2018
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> [17179584.300000] tulip 0000:18:00.0: enabling device (0000 -> 0003)
> [17179584.308000] tulip 0000:18:00.0: enabling SERR and PARITY (0003 -> 0143)
> 
> ************* SYSTEM ALERT **************
> SYSTEM NAME: scaspdb24

As noted here,
http://osdir.com/ml/linux.ports.hppa/2007-07/msg00036.html
the VFP may have obscured some kernel output.  It may be available
in the console log.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:21 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Cc: Grant Grundler <grundler@parisc-linux.org>,
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On Mon, Jun 08, 2009 at 10:26:06PM +0100, Neil McGovern wrote:
> Firstly, thanks for your mail, apologies that I haven't replied sooner,
> we've had EU and local elections, so I've been busy runnign around with
> leaflets, knocking on doors, kissing babies etc. like any politician. No
> expenses though...

No problem.

> 
> On Sat, Jun 06, 2009 at 12:36:01PM -0600, Grant Grundler wrote:
> > Carlos O'Donnell asked some questions in response to [0] and I never
> > saw any response.  Can an attendee of the above meeting please reply
> > this email from Carlos?
> >     http://lists.debian.org/debian-release/2009/04/msg00303.html
> > 
> 
> I'm not sure what replies you'd like... there's certainly been some
> follow ups to that mail.

The following questions haven't been answered in that thread:
1) Is there a list of different porting efforts?
2) What is considered proper java support? GCJ?

I've commented on the kernel side and it's looking better.
I don't know the status of the HPPA installer.

> > I also never got a response to my offer here:
> >     http://lists.debian.org/debian-release/2009/04/msg00339.html
> > 
> 
> Indeed, and that's worrying. I would have expected a HPPA porter (if
> indeed one still exists) to have replied to that.

Or they already have machines. I'm not a DD and don't aspire to be one.
So these are "in the wild" from a Debian point of view.

> > Quite a few serious hppa specific bugs have been fixed upstream over
> > the past 6 months. This is worth revisiting.
> > 
> > Is upstream stable enough for a buildd?  I don't know since I'm not aware
> > of any attempts to run a buildd with those kernels.
> 
> Neither do we, we're not HPPA porters :)
> We did go through this before with newer kernels, and it didn't help
> FWIW.
> 
> > Is the answer to that question still germane?
> 
> Ish. We still have the issue that you can't actually buy HPPAs any more,
> and various bits and pieces from the Arch Requalification list.

We can buy HPPA. Just not new ones. There are several resellers of
used HPPA gear if someone wants/needs to spend money on it.

Can you list the "various bits and pieces" specifically?

I can then prod the folks I know who might be able to do something about
if they still feel like it.


> [change of order by me below]
> > Also, I'd like to ask HPPA debs be kept in "testing" staging area,
> > just never promoted when the release is cut.  This will let people
> > continue using HPPA without having to suffer with the !hppa breakage
> > that lives in unstable. 
> 
> > (that's all I personally care about - I don't care about "stable"
> > releases.)
> 
> This is one of the major problems for the port. Testing exists to create
> the next stable release. Essentially, testing *is* the next stable,
> except that it's a little volatile for a number of months... :)

Ok.

> > Can we have the minutes for this meeting?
> 
> I'm afraid they're not publicly available, but I will be posting a
> mail to d-d-a real-soon-now(tm), apologies for the delays in this, it
> was a rather full meeting.

Given Debian is non-profit and strives to be transperent in it's operations,
this sounds like a digression in that effort.

I'm not on d-d-a. Can you please CC affected ports? (TIA)

cheers,
grant
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From: Grant Grundler <grundler@parisc-linux.org>
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To: Christoph Hellwig <hch@lst.de>
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On Mon, Jun 08, 2009 at 04:20:39PM +0200, Christoph Hellwig wrote:
> On Mon, Jun 08, 2009 at 10:17:51AM -0400, John David Anglin wrote:
> > > On Wed, Nov 05, 2008 at 03:08:10PM +0100, Christoph Hellwig wrote:
> > > > Anyone wants to pick this one up?
> > > > 
> > > > On Sun, Aug 17, 2008 at 04:41:51AM +0200, Christoph Hellwig wrote:
> > > > > Unless I'm totally missing something get_fd_set32/set_fd_set32 are
> > > > > completely unused.
> > 
> > In theory, they were removed in 2004 by this proposed change:
> > http://lkml.org/lkml/2004/4/17/37
> 
> The users were removed, the helpers stayed.  Kyle promised to put the
> patch to remove them in last year, but somehow the patch got lost a
> couple of times :)

Kyle and Helge are the maintainers right now and probably just
need to push your original patch. It looks straight forward to me.

thanks
grant
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
Subject: Re: HPPA and Squeeze
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Cc: HPPA porters <debian-hppa@lists.debian.org>,
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	admin@debian-ports.org, linux-parisc@vger.kernel.org
To: Luk Claes <luk@debian.org>
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On Fri, Jun 12, 2009 at 08:49:26AM +0200, Luk Claes wrote:
> Grant Grundler wrote:
> > +linux-parisc (hppa kernel, compiler and !debian tech forum)
> > 
> > Neil,
> > thanks for the summary. I know this is an unpleasant business in general.
> > 
> > On Tue, Jun 02, 2009 at 03:07:35PM +0100, Neil McGovern wrote:
> >> Hi,
> >>
> >> As mentioned previously[0], the release team haven't been happy with the
> >> state of the HPPA port in Debian. After the release team meeting[1], it
> >> has been decided that unfortunatly HPPA will not be supported for
> >> Squeeze. This was after careful consideration, and wasn't an easy
> >> decision.
> >>
> >> This means that ftpmasters will be asked to remove HPPA from testing and
> >> unstable from the 30th June. It is suggested that HPPA porters may wish
> >> to consider using debian-ports.org if they wish to continue with the
> >> port.
> >>
> >> Regards,
> >> Neil McGovern
> >>
> >> [0] http://lists.debian.org/debian-release/2009/04/msg00299.html
> > 
> > Carlos O'Donnell asked some questions in response to [0] and I never
> > saw any response.  Can an attendee of the above meeting please reply
> > this email from Carlos?
> >
> >     http://lists.debian.org/debian-release/2009/04/msg00303.html
> 
> Note that it's wrong to assume we will come with the answers.

I was expecting a summary of specific issues from an organization
that claims to operate transperently.  The hand waving is easy. But
doesn't resolve problems and doesn't meet my expectation of an "open"
organization that I've donated money, time, and materials to.

>  It's an
> extra bad feeling we get that even the people that do respond when there
> is a request regarding hppa porters don't know what the issues are...

Expecting me to know the state of user space components is a bit silly.
I'm not a DD. I'm a kernel developer. Specifically IO/Device Drivers.

Carlos does know that state (toolchain/glibc) and he just wanted
a list of issues that are driving this decision. It's a very reasonable
question he asked.

> > I also never got a response to my offer here:
> >     http://lists.debian.org/debian-release/2009/04/msg00339.html
> 
> There was some discussion with DSA and they didn't seem willing to take
> the offer as it would be very restricted regarding access and control
> (too strongly firewalled if I remember correctly) for our administrators.

I can put one (and maybe two) machines on a public IP. Just ask.
The remote console access will remain behind a fire wall.

BTW, that firewall was reviewed and approved by Lamont (a pretty well
known DD and buildd maintainer).

Thibaut Varene (who is a DD) has offered to host HPPA buildd machines
as well but hasn't heard any response to that offer either.

> It's rather strange that you did not get any feedback in
> that regard.

Agred. Maybe the problems that need to be resolved aren't technical ones.

In any case, responding to some of the above with specific concerns
should continue this constructive dialog.

> 
> > And my response again to this question posted in [0]:
> >> * The machines that host the buildds still seem to have a very
> >> unreliable kernel. Is there any update on this?
> 
> It looks like the amount of random crashes has decreased and the amount
> of random segfaults has increased, though does not look promising after
> more than 2 years already of random issues like this.

The buildd is seeing issues most other HPPA users (including me) are
not seeing. That makes the problems quite a bit harder to resolve.

Last time I tried to set up a buildd was rather painful and exceeded
the amount of time I was willing to invest (vs contributing to other
kernel issues). This was more than 2 years ago and I'm willing to
try again IFF someone can tell me what impact that would have on
the Debian cabal that seems to be running things.

> > Is upstream stable enough for a buildd?  I don't know since I'm not aware
> > of any attempts to run a buildd with those kernels.
> 
> Rather recent kernels have been tried and like said above seem to behave
> better, but still very much subpar.

Have bugs been filed for those issues that HPPA folks can look at?
How can I find them?

> > Is the answer to that question still germane?
> > If so, I'm willing to setup a local buildd and try it. But I will need
> > more time and some commitment that if it works, hppa remain in testing
> > release (that's all I personally care about - I don't care about "stable"
> > releases.)
> 
> That's not how it works. testing is the preparation for the next stable
> release, so staying in testing means fixing any important outstanding
> porting issue and most importantly the random crashes and segfaults,
> actively making sure there are no important issues with the hppa port
> within Debian and committing to support the next stable release.

Ok. Sounds like Helge is ok with "unstable" and I'll try switching to
"unstable" instead of "testing". 


> > Can we have the minutes for this meeting?
> 
> No, I didn't even get the chance myself to read them. A summary of the
> minutes will be posted as usual in the next 'Bits from the Release Team'
> though.

Ok - can debian-hppa mailing list be CC'd when that's posted please?

> > Also, I'd like to ask HPPA debs be kept in "testing" staging area,
> > just never promoted when the release is cut.  This will let people
> > continue using HPPA without having to suffer with the !hppa breakage
> > that lives in unstable.
> 
> This will get DSA, maintainers, release team and others keep being
> frustrated that hppa issues are making their work harder

My goal is to allow these folks to ignore HPPA but still allow HPPA
to benefit from the "let bits bake in unstable before promoting".

I want to acknowledge stable releases are alot of work and I believe
Debian HPPA is sufficiently usable without that extra work.

>  and will only
> be tolerated if there will finally be a clear commitment from the hppa
> porters to deal with any present and future important porting issue in a
> reasonable time frame.
>
> The main problem we have with hppa is that important porter issues are
> not dealt with in a reasonable time frame. The random crashes and
> segfaults are lasting for years already!

As Helge said, many problems have been fixed. It's unfair to ignore that.

And open source is in general is NOT living up to the "good becuase
it was reviewed by many people" for the bulk of the code. HPPA is
suffering from this while resolving some pretty ugly arch specific issues.


> Note that we do *NOT* intend to drop hppa from unstable, it being
> mentioned at all was an unfortunate sign of the deep frustration of some...

Ok. Thanks for clarifying.

cheers,
grant
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Cc: Neil McGovern <maulkin@halon.org.uk>,
	HPPA porters <debian-hppa@lists.debian.org>,
	linux-parisc@vger.kernel.org
To: Grant Grundler <grundler@parisc-linux.org>
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On 06/15/2009 06:26 PM, Grant Grundler wrote:
> On Mon, Jun 08, 2009 at 10:26:06PM +0100, Neil McGovern wrote:
>> Firstly, thanks for your mail, apologies that I haven't replied sooner,
>> we've had EU and local elections, so I've been busy runnign around with
>> leaflets, knocking on doors, kissing babies etc. like any politician. No
>> expenses though...
>
> No problem.
>
>> On Sat, Jun 06, 2009 at 12:36:01PM -0600, Grant Grundler wrote:
>>> Carlos O'Donnell asked some questions in response to [0] and I never
>>> saw any response.  Can an attendee of the above meeting please reply
>>> this email from Carlos?
>>>      http://lists.debian.org/debian-release/2009/04/msg00303.html
>>>
>> I'm not sure what replies you'd like... there's certainly been some
>> follow ups to that mail.
>
> The following questions haven't been answered in that thread:
> 1) Is there a list of different porting efforts?
> 2) What is considered proper java support? GCJ?
>
> I've commented on the kernel side and it's looking better.
> I don't know the status of the HPPA installer.

The HPPA installer should be OK:
http://www.mail-archive.com/debian-hppa@lists.debian.org/msg06298.html

Helge
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [RFC] remove dead code from sys_parisc32.c
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On Mon, Jun 08, 2009 at 04:20:39PM +0200, Christoph Hellwig wrote:
> On Mon, Jun 08, 2009 at 10:17:51AM -0400, John David Anglin wrote:
> > > On Wed, Nov 05, 2008 at 03:08:10PM +0100, Christoph Hellwig wrote:
> > > > Anyone wants to pick this one up?
> > > > 
> > > > On Sun, Aug 17, 2008 at 04:41:51AM +0200, Christoph Hellwig wrote:
> > > > > Unless I'm totally missing something get_fd_set32/set_fd_set32 are
> > > > > completely unused.
> > 
> > In theory, they were removed in 2004 by this proposed change:
> > http://lkml.org/lkml/2004/4/17/37
> 
> The users were removed, the helpers stayed.  Kyle promised to put the
> patch to remove them in last year, but somehow the patch got lost a
> couple of times :)
> 

Yeah yeah, I suck. :) I'll send it along tonight.
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From: Greg Kroah-Hartman <gregkh@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 56/64] parisc: remove driver_data direct access of struct device
Date: Mon, 15 Jun 2009 22:46:45 -0700
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Cc: Greg Kroah-Hartman <gregkh@suse.de>, linux-parisc@vger.kernel.org,
	Helge Deller <deller@gmx.de>, Kyle McMartin <kyle@mcmartin.ca>
To: linux-kernel@vger.kernel.org
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In the near future, the driver core is going to not allow direct access
to the driver_data pointer in struct device.  Instead, the functions
dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
have been around since the beginning, so are backwards compatible with
all older kernel versions.

Cc: linux-parisc@vger.kernel.org
Cc: Helge Deller <deller@gmx.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/parisc/eisa.c      |    2 +-
 drivers/parisc/sba_iommu.c |    6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index f415fdd..5b89f40 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -373,7 +373,7 @@ static int __init eisa_probe(struct parisc_device *dev)
 	if (result >= 0) {
 		/* FIXME : Don't enumerate the bus twice. */
 		eisa_dev.root.dev = &dev->dev;
-		dev->dev.driver_data = &eisa_dev.root;
+		dev_set_drvdata(&dev->dev, &eisa_dev.root);
 		eisa_dev.root.bus_base_addr = 0;
 		eisa_dev.root.res = &eisa_dev.hba.io_space;
 		eisa_dev.root.slots = result;
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index e5999c4..d46dd57 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -2010,7 +2010,7 @@ void __init sba_init(void)
 void * sba_get_iommu(struct parisc_device *pci_hba)
 {
 	struct parisc_device *sba_dev = parisc_parent(pci_hba);
-	struct sba_device *sba = sba_dev->dev.driver_data;
+	struct sba_device *sba = dev_get_drvdata(&sba_dev->dev);
 	char t = sba_dev->id.hw_type;
 	int iocnum = (pci_hba->hw_path >> 3);	/* rope # */
 
@@ -2031,7 +2031,7 @@ void * sba_get_iommu(struct parisc_device *pci_hba)
 void sba_directed_lmmio(struct parisc_device *pci_hba, struct resource *r)
 {
 	struct parisc_device *sba_dev = parisc_parent(pci_hba);
-	struct sba_device *sba = sba_dev->dev.driver_data;
+	struct sba_device *sba = dev_get_drvdata(&sba_dev->dev);
 	char t = sba_dev->id.hw_type;
 	int i;
 	int rope = (pci_hba->hw_path & (ROPES_PER_IOC-1));  /* rope # */
@@ -2073,7 +2073,7 @@ void sba_directed_lmmio(struct parisc_device *pci_hba, struct resource *r)
 void sba_distributed_lmmio(struct parisc_device *pci_hba, struct resource *r )
 {
 	struct parisc_device *sba_dev = parisc_parent(pci_hba);
-	struct sba_device *sba = sba_dev->dev.driver_data;
+	struct sba_device *sba = dev_get_drvdata(&sba_dev->dev);
 	char t = sba_dev->id.hw_type;
 	int base, size;
 	int rope = (pci_hba->hw_path & (ROPES_PER_IOC-1));  /* rope # */
-- 
1.6.3.2

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From - Thu Nov 08 21:04:21 2018
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From: Lucas Nussbaum <lucas@lucas-nussbaum.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
Subject: Re: HPPA and Squeeze
Date: Tue, 16 Jun 2009 08:25:31 +0200
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References: <20090602140734.GC26721@mx0.halon.org.uk> <20090606183600.GA425@lackof.org> <4A31FA76.20103@debian.org> <20090615173102.GC2690@lackof.org>
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Cc: HPPA porters <debian-hppa@lists.debian.org>,
	Debian Release <debian-release@lists.debian.org>,
	admin@debian-ports.org, linux-parisc@vger.kernel.org
To: Grant Grundler <grundler@parisc-linux.org>
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On 15/06/09 at 11:31 -0600, Grant Grundler wrote:
> I was expecting a summary of specific issues from an organization
> that claims to operate transperently.  The hand waving is easy. But
> doesn't resolve problems and doesn't meet my expectation of an "open"
> organization that I've donated money, time, and materials to.
> 
> >  It's an
> > extra bad feeling we get that even the people that do respond when there
> > is a request regarding hppa porters don't know what the issues are...
> 
> Expecting me to know the state of user space components is a bit silly.
> I'm not a DD. I'm a kernel developer. Specifically IO/Device Drivers.
> 
> Carlos does know that state (toolchain/glibc) and he just wanted
> a list of issues that are driving this decision. It's a very reasonable
> question he asked.

[...]

> I can put one (and maybe two) machines on a public IP. Just ask.
> The remote console access will remain behind a fire wall.
> 
> BTW, that firewall was reviewed and approved by Lamont (a pretty well
> known DD and buildd maintainer).
> 
> Thibaut Varene (who is a DD) has offered to host HPPA buildd machines
> as well but hasn't heard any response to that offer either.

(Stepping in ; I had some HPPA-related issues in one of my packages -
ruby1.9 - so this is based on my experience with that problems)

I think that your email summarizes the problem quite well: there are
several people willing to offer buildd hosting, help after someone else
has investigated the issues, etc.
What debian-hppa currently lacks is someone that is willing to
proactively detect issues (looking at packages that failed to build, for
example), investigate them, and fix them. This can be done cooperating
with the package maintainers, but the HPPA side should take the lead.
The fact that HPPA people are asking the release team "what are the
problems you are talking about?" clearly shows that this is broken: the
HPPA people should be knowing more than the release team about HPPA
issues.

PS: if you want an HPPA-specific issue to play with,
http://experimental.debian.net/fetch.php?&pkg=ruby1.9&ver=1.9.0.1-5&arch=hppa&stamp=1213563978&file=log&as=raw
might be a good candidate.
-- 
| Lucas Nussbaum
| lucas@lucas-nussbaum.net   http://www.lucas-nussbaum.net/ |
| jabber: lucas@nussbaum.fr             GPG: 1024D/023B3F4F |
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From - Thu Nov 08 21:04:21 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 56/64] parisc: remove driver_data direct access of
	struct device
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Cc: linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	Helge Deller <deller@gmx.de>, Kyle McMartin <kyle@mcmartin.ca>
To: Greg Kroah-Hartman <gregkh@suse.de>
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On Mon, Jun 15, 2009 at 10:46:45PM -0700, Greg Kroah-Hartman wrote:
> In the near future, the driver core is going to not allow direct access
> to the driver_data pointer in struct device.  Instead, the functions
> dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
> have been around since the beginning, so are backwards compatible with
> all older kernel versions.
> 
> Cc: linux-parisc@vger.kernel.org
> Cc: Helge Deller <deller@gmx.de>
> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Acked-by: Kyle McMartin <kyle@mcmartin.ca>

Do you want to push it along with the rest of them, or would you like me
to apply it?

regards, Kyle
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From - Thu Nov 08 21:04:21 2018
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From: Greg KH <gregkh@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 56/64] parisc: remove driver_data direct access of
	struct device
Date: Tue, 16 Jun 2009 09:25:24 -0700
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To: Kyle McMartin <kyle@mcmartin.ca>
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On Tue, Jun 16, 2009 at 11:15:24AM -0400, Kyle McMartin wrote:
> On Mon, Jun 15, 2009 at 10:46:45PM -0700, Greg Kroah-Hartman wrote:
> > In the near future, the driver core is going to not allow direct access
> > to the driver_data pointer in struct device.  Instead, the functions
> > dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
> > have been around since the beginning, so are backwards compatible with
> > all older kernel versions.
> > 
> > Cc: linux-parisc@vger.kernel.org
> > Cc: Helge Deller <deller@gmx.de>
> > Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
> 
> Acked-by: Kyle McMartin <kyle@mcmartin.ca>
> 
> Do you want to push it along with the rest of them, or would you like me
> to apply it?

This was sent a while ago, and is going to Linus right now.  So if you
want to also add it to your tree, so that it is sure to not get lost,
that is fine with me :)

thanks,

greg k-h
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From - Thu Nov 08 21:04:21 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 56/64] parisc: remove driver_data direct access of
	struct device
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To: Greg KH <gregkh@suse.de>
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On Tue, Jun 16, 2009 at 09:25:24AM -0700, Greg KH wrote:
> On Tue, Jun 16, 2009 at 11:15:24AM -0400, Kyle McMartin wrote:
> > On Mon, Jun 15, 2009 at 10:46:45PM -0700, Greg Kroah-Hartman wrote:
> > > In the near future, the driver core is going to not allow direct access
> > > to the driver_data pointer in struct device.  Instead, the functions
> > > dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
> > > have been around since the beginning, so are backwards compatible with
> > > all older kernel versions.
> > > 
> > > Cc: linux-parisc@vger.kernel.org
> > > Cc: Helge Deller <deller@gmx.de>
> > > Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
> > 
> > Acked-by: Kyle McMartin <kyle@mcmartin.ca>
> > 
> > Do you want to push it along with the rest of them, or would you like me
> > to apply it?
> 
> This was sent a while ago, and is going to Linus right now.  So if you
> want to also add it to your tree, so that it is sure to not get lost,
> that is fine with me :)
> 

Ah, it probably already was, but I've been so busy in the last month or
two that I missed sending anything after .30-rc$early. (I only asked
because Linus wasn't on the CC so I figured it was out for review
again, or something.)

cheers, Kyle
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Cc: Grant Grundler <grundler@parisc-linux.org>, 
 HPPA porters <debian-hppa@lists.debian.org>,
 Debian Release <debian-release@lists.debian.org>, 
 admin@debian-ports.org, linux-parisc@vger.kernel.org
To: Lucas Nussbaum <lucas@lucas-nussbaum.net>, 
 Carlos O'Donell <carlos@systemhalted.org>
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On 06/16/2009 08:25 AM, Lucas Nussbaum wrote:
> On 15/06/09 at 11:31 -0600, Grant Grundler wrote:
> PS: if you want an HPPA-specific issue to play with,
> http://experimental.debian.net/fetch.php?&pkg=ruby1.9&ver=1.9.0.1-5&arch=hppa&stamp=1213563978&file=log&as=raw
> might be a good candidate.

In reality it's not (any longer) a hppa specific bug. It's a bug in ruby.
Ruby just relies on NPTL specific behaviour of threads and as such plays mad on LinuxThreads, which we still have active on hppa.
The good thing is, that the NPTL switch-over was started by Carlos, so I expect that this should be fixed when NPTL hits unstable...

Helge



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On Tue, Jun 16, 2009 at 09:08:37PM +0200, Helge Deller wrote:
> On 06/16/2009 08:25 AM, Lucas Nussbaum wrote:
>> On 15/06/09 at 11:31 -0600, Grant Grundler wrote:
>> PS: if you want an HPPA-specific issue to play with,
>> http://experimental.debian.net/fetch.php?&pkg=ruby1.9&ver=1.9.0.1-5&arch=hppa&stamp=1213563978&file=log&as=raw
>> might be a good candidate.
>
> In reality it's not (any longer) a hppa specific bug. It's a bug in ruby.
> Ruby just relies on NPTL specific behaviour of threads and as such plays mad on LinuxThreads, which we still have active on hppa.
> The good thing is, that the NPTL switch-over was started by Carlos, so I expect that this should be fixed when NPTL hits unstable...
>

BTW, Carlos, could you please send me the latest version of your
patches, so that we can actually do the switch with version 2.10?

-- 
Aurelien Jarno	                        GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net



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On Tue, Jun 16, 2009 at 08:25:31AM +0200, Lucas Nussbaum wrote:
...
> > BTW, that firewall was reviewed and approved by Lamont (a pretty well
> > known DD and buildd maintainer).
> > 
> > Thibaut Varene (who is a DD) has offered to host HPPA buildd machines
> > as well but hasn't heard any response to that offer either.
> 
> (Stepping in ; I had some HPPA-related issues in one of my packages -
> ruby1.9 - so this is based on my experience with that problems)
> 
> I think that your email summarizes the problem quite well: there are
> several people willing to offer buildd hosting, help after someone else
> has investigated the issues, etc.
> What debian-hppa currently lacks is someone that is willing to
> proactively detect issues (looking at packages that failed to build, for
> example), investigate them, and fix them. This can be done cooperating
> with the package maintainers, but the HPPA side should take the lead.

Yup - this is definitely true. debian-hppa needed alot of prodding to
look at buildd failures.

> The fact that HPPA people are asking the release team "what are the
> problems you are talking about?" clearly shows that this is broken: the
> HPPA people should be knowing more than the release team about HPPA
> issues.

Generalizing one person's response (mine) to represent the group is wrong.

However I agree the release team has no one who cares about HPPA involved.
And yes, it's up to the release team to track bugs and determine
the viability of a release based on outstanding bugs.

As I said before, I'm ok with NOT having a "stable" HPPA release.
If someone disagrees, then they need to participate in the release
team and help debian-hppa focus on critical buildd failures. ie generate
the nag mail listing the HPPA-specific issues that need to be resolved.


> PS: if you want an HPPA-specific issue to play with,
> http://experimental.debian.net/fetch.php?&pkg=ruby1.9&ver=1.9.0.1-5&arch=hppa&stamp=1213563978&file=log&as=raw
> might be a good candidate.

This did take a long time to resolve. Helge described the root cause
(ruby did not support LinuxThreads implementation correctly) and
resolution plan (migrate HPPA to NTPL).

No phase of this problem sounds trivial to debug or resolve.
Based on this, I can argue the HPPA response is reasonable even
if is unsatisfactory and frustrating to you (as package maintainer).

Do you have another HPPA specific issue?
Or maybe just remind the list how to find those issues?
(Teach a man to fish...)

thanks,
grant
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To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
	Kyle McMartin <kyle@mcmartin.ca>
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On 06/15/2009 01:20 AM, John David Anglin wrote:
> I am convinced that interrupts need to be disabled on SMP kernels to
> prevent deadlock.  On UP kernels, I am not convinced that anything bad
> happens if we do a tlb purge while handling an interrupt since we don't
> have to worry about preventing bus conflicts.  The UP code can't
> deadlock.  I'm thinking that we can stay with disabling preemption.

Dave is right and it took me long to understand his point...
I continued testing and we can simply just disable preemption for UP
kernels and use an irq-safe spinlock for SMP kernels.

Below is the latest and greatest patch which fixes this bug.
Run-tested onUP kernels and compile-tested on SMP kernels.

Kyle, it would be nice if you could apply it as soon as possible.
The bug is existing since a long time, so it might make sense to backport
it to older kernels as well...

-----------

Patch: [parisc] fix system hangs due to unsafe locking of the TLB-protection spinlock
Importance: high, fixes complete kernel stalls

The TLB flushing functions on hppa, which causes PxTLB broadcasts on the system
bus, needs to be protected by irq-safe spinlocks to avoid irq handlers to deadlock
the kernel. The deadlocks only happened during I/O intensive loads and triggered
pretty seldom, which is why this bug went so long unnoticed.

Fix this bug by using spin_lock_irqsafe() for SMP kernels and preempt_disable()
for UP kernels.

Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index 1f6fd4f..3d82fc8 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -10,16 +10,21 @@
  
  /* This is for the serialisation of PxTLB broadcasts.  At least on the
   * N class systems, only one PxTLB inter processor broadcast can be
- * active at any one time on the Merced bus.  This tlb purge
- * synchronisation is fairly lightweight and harmless so we activate
- * it on all SMP systems not just the N class.  We also need to have
- * preemption disabled on uniprocessor machines, and spin_lock does that
- * nicely.
+ * active at any one time on the Merced bus. To be on the safe side, we
+ * unconditionally protect those broadcasts for all SMP kernels with a
+ * spinlock.
+ * On uniprocessor machines we save this overhead by just disabling
+ * preemption.
   */
-extern spinlock_t pa_tlb_lock;
  
-#define purge_tlb_start(x) spin_lock(&pa_tlb_lock)
-#define purge_tlb_end(x) spin_unlock(&pa_tlb_lock)
+#ifdef CONFIG_SMP
+extern spinlock_t pa_tlb_lock;
+# define purge_tlb_start(flags)	spin_lock_irqsave(&pa_tlb_lock, flags)
+# define purge_tlb_end(flags)	spin_unlock_irqrestore(&pa_tlb_lock, flags)
+#else
+# define purge_tlb_start(flags)	preempt_disable()
+# define purge_tlb_end(flags)	preempt_enable()
+#endif
  
  extern void flush_tlb_all(void);
  extern void flush_tlb_all_local(void *);
@@ -64,13 +69,14 @@ static inline void flush_tlb_page(struct vm_area_struct *vma,
  	unsigned long addr)
  {
  	/* For one page, it's not worth testing the split_tlb variable */
+	unsigned long flags __maybe_unused;
  
  	mb();
  	mtsp(vma->vm_mm->context,1);
-	purge_tlb_start();
+	purge_tlb_start(flags);
  	pdtlb(addr);
  	pitlb(addr);
-	purge_tlb_end();
+	purge_tlb_end(flags);
  }
  
  void __flush_tlb_range(unsigned long sid,
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 837530e..9c85e4f 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -35,12 +35,14 @@ int icache_stride __read_mostly;
  EXPORT_SYMBOL(dcache_stride);
  
  
+#ifdef CONFIG_SMP
  /* On some machines (e.g. ones with the Merced bus), there can be
   * only a single PxTLB broadcast at a time; this must be guaranteed
- * by software.  We put a spinlock around all TLB flushes  to
- * ensure this.
+ * by software.  We put a spinlock around all TLB flushes on SMP
+ * kernels to ensure this.
   */
  DEFINE_SPINLOCK(pa_tlb_lock);
+#endif
  
  struct pdc_cache_info cache_info __read_mostly;
  #ifndef CONFIG_PA20
@@ -400,10 +402,11 @@ void clear_user_page_asm(void *page, unsigned long vaddr)
  {
  	/* This function is implemented in assembly in pacache.S */
  	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
+	unsigned long flags __maybe_unused;
  
-	purge_tlb_start();
+	purge_tlb_start(flags);
  	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end();
+	purge_tlb_end(flags);
  }
  
  #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
@@ -444,20 +447,22 @@ extern void clear_user_page_asm(void *page, unsigned long vaddr);
  
  void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
  {
+	unsigned long flags __maybe_unused;
  	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start();
+	purge_tlb_start(flags);
  	pdtlb_kernel(page);
-	purge_tlb_end();
+	purge_tlb_end(flags);
  	clear_user_page_asm(page, vaddr);
  }
  EXPORT_SYMBOL(clear_user_page);
  
  void flush_kernel_dcache_page_addr(void *addr)
  {
+	unsigned long flags __maybe_unused;
  	flush_kernel_dcache_page_asm(addr);
-	purge_tlb_start();
+	purge_tlb_start(flags);
  	pdtlb_kernel(addr);
-	purge_tlb_end();
+	purge_tlb_end(flags);
  }
  EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
  
@@ -490,8 +495,9 @@ void __flush_tlb_range(unsigned long sid, unsigned long start,
  	if (npages >= 512)  /* 2MB of space: arbitrary, should be tuned */
  		flush_tlb_all();
  	else {
+		unsigned long flags __maybe_unused;
  		mtsp(sid, 1);
-		purge_tlb_start();
+		purge_tlb_start(flags);
  		if (split_tlb) {
  			while (npages--) {
  				pdtlb(start);
@@ -504,7 +510,7 @@ void __flush_tlb_range(unsigned long sid, unsigned long start,
  				start += PAGE_SIZE;
  			}
  		}
-		purge_tlb_end();
+		purge_tlb_end(flags);
  	}
  }
  
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 7d927ea..dbe6c8e 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -90,12 +90,13 @@ static inline int map_pte_uncached(pte_t * pte,
  	if (end > PMD_SIZE)
  		end = PMD_SIZE;
  	do {
+		unsigned long flags __maybe_unused;
  		if (!pte_none(*pte))
  			printk(KERN_ERR "map_pte_uncached: page already exists\n");
  		set_pte(pte, __mk_pte(*paddr_ptr, PAGE_KERNEL_UNC));
-		purge_tlb_start();
+		purge_tlb_start(flags);
  		pdtlb_kernel(orig_vaddr);
-		purge_tlb_end();
+		purge_tlb_end(flags);
  		vaddr += PAGE_SIZE;
  		orig_vaddr += PAGE_SIZE;
  		(*paddr_ptr) += PAGE_SIZE;
@@ -168,11 +169,12 @@ static inline void unmap_uncached_pte(pmd_t * pmd, unsigned long vaddr,
  	if (end > PMD_SIZE)
  		end = PMD_SIZE;
  	do {
+		unsigned long flags __maybe_unused;
  		pte_t page = *pte;
  		pte_clear(&init_mm, vaddr, pte);
-		purge_tlb_start();
+		purge_tlb_start(flags);
  		pdtlb_kernel(orig_vaddr);
-		purge_tlb_end();
+		purge_tlb_end(flags);
  		vaddr += PAGE_SIZE;
  		orig_vaddr += PAGE_SIZE;
  		pte++;
--
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From - Thu Nov 08 21:04:22 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
Subject: Re: HPPA and Squeeze
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Cc: Lucas Nussbaum <lucas@lucas-nussbaum.net>,
	HPPA porters <debian-hppa@lists.debian.org>,
	Debian Release <debian-release@lists.debian.org>,
	admin@debian-ports.org, linux-parisc@vger.kernel.org
To: Grant Grundler <grundler@parisc-linux.org>
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On Tue, Jun 16, 2009 at 02:50:27PM -0600, Grant Grundler wrote:
> On Tue, Jun 16, 2009 at 08:25:31AM +0200, Lucas Nussbaum wrote:
> ...
> > > BTW, that firewall was reviewed and approved by Lamont (a pretty well
> > > known DD and buildd maintainer).
> > > 
> > > Thibaut Varene (who is a DD) has offered to host HPPA buildd machines
> > > as well but hasn't heard any response to that offer either.
> > 
> > (Stepping in ; I had some HPPA-related issues in one of my packages -
> > ruby1.9 - so this is based on my experience with that problems)
> > 
> > I think that your email summarizes the problem quite well: there are
> > several people willing to offer buildd hosting, help after someone else
> > has investigated the issues, etc.
> > What debian-hppa currently lacks is someone that is willing to
> > proactively detect issues (looking at packages that failed to build, for
> > example), investigate them, and fix them. This can be done cooperating
> > with the package maintainers, but the HPPA side should take the lead.
> 
> Yup - this is definitely true. debian-hppa needed alot of prodding to
> look at buildd failures.
> 
> > The fact that HPPA people are asking the release team "what are the
> > problems you are talking about?" clearly shows that this is broken: the
> > HPPA people should be knowing more than the release team about HPPA
> > issues.
> 
> Generalizing one person's response (mine) to represent the group is wrong.
> 
> However I agree the release team has no one who cares about HPPA involved.
> And yes, it's up to the release team to track bugs and determine
> the viability of a release based on outstanding bugs.
> 
> As I said before, I'm ok with NOT having a "stable" HPPA release.
> If someone disagrees, then they need to participate in the release
> team and help debian-hppa focus on critical buildd failures. ie generate
> the nag mail listing the HPPA-specific issues that need to be resolved.
> 
> 
> > PS: if you want an HPPA-specific issue to play with,
> > http://experimental.debian.net/fetch.php?&pkg=ruby1.9&ver=1.9.0.1-5&arch=hppa&stamp=1213563978&file=log&as=raw
> > might be a good candidate.
> 
> This did take a long time to resolve. Helge described the root cause
> (ruby did not support LinuxThreads implementation correctly) and
> resolution plan (migrate HPPA to NTPL).
> 
> No phase of this problem sounds trivial to debug or resolve.
> Based on this, I can argue the HPPA response is reasonable even
> if is unsatisfactory and frustrating to you (as package maintainer).
> 
> Do you have another HPPA specific issue?
> Or maybe just remind the list how to find those issues?
> (Teach a man to fish...)

Are we still having random segfaults on paer? If so - that's be a good
one to resolve. Not sure if DSA would be willing to grant (heh) you
access to that box, or if we should try running a dummy buildd on
another rp2470.

-- 
dann frazier

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From - Thu Nov 08 21:04:22 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: HPPA and Squeeze
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To: deller@gmx.de (Helge Deller)
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> Again, kernel bugs are sometimes hard to find.
> I still think that http://patchwork.kernel.org/patch/28458/ may fix a few.
> The only outstanding bug I still know of is that we sometimes face uid/gid issues.
> This still needs analysis.

Helge suggested yesterday that the uid/gid issue might be a bug in nscd.
I installed 2.6.30 last night and disabled nscd.  I have now run for more
than a day without this issue appearing.  The machine did a full GCC build
and check taking about 24 hours.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:22 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] fix parisc runtime hangs wrt pa_tlb_lock
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Cc: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
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To: Helge Deller <deller@gmx.de>
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On Tue, Jun 16, 2009 at 10:51:48PM +0200, Helge Deller wrote:
> On 06/15/2009 01:20 AM, John David Anglin wrote:
>> I am convinced that interrupts need to be disabled on SMP kernels to
>> prevent deadlock.  On UP kernels, I am not convinced that anything bad
>> happens if we do a tlb purge while handling an interrupt since we don't
>> have to worry about preventing bus conflicts.  The UP code can't
>> deadlock.  I'm thinking that we can stay with disabling preemption.
>
> Dave is right and it took me long to understand his point...
> I continued testing and we can simply just disable preemption for UP
> kernels and use an irq-safe spinlock for SMP kernels.
>
> Below is the latest and greatest patch which fixes this bug.
> Run-tested onUP kernels and compile-tested on SMP kernels.
>

Ugh, I'd really prefer it if we just took the irq disable and enable hit
on UP by making the codepaths the same... Is that ok with you or?

Kyle

> Kyle, it would be nice if you could apply it as soon as possible.
> The bug is existing since a long time, so it might make sense to backport
> it to older kernels as well...
>
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On 06/17/2009 04:55 AM, Kyle McMartin wrote:
> On Tue, Jun 16, 2009 at 10:51:48PM +0200, Helge Deller wrote:
>> On 06/15/2009 01:20 AM, John David Anglin wrote:
>>> I am convinced that interrupts need to be disabled on SMP kernels to
>>> prevent deadlock.  On UP kernels, I am not convinced that anything bad
>>> happens if we do a tlb purge while handling an interrupt since we don't
>>> have to worry about preventing bus conflicts.  The UP code can't
>>> deadlock.  I'm thinking that we can stay with disabling preemption.
>> Dave is right and it took me long to understand his point...
>> I continued testing and we can simply just disable preemption for UP
>> kernels and use an irq-safe spinlock for SMP kernels.
>>
>> Below is the latest and greatest patch which fixes this bug.
>> Run-tested onUP kernels and compile-tested on SMP kernels.
>>
>
> Ugh, I'd really prefer it if we just took the irq disable and enable hit
> on UP by making the codepaths the same... Is that ok with you or?

You mean to use the irq-safe spinlocking path for SMP _and_ UP?
Yes, that would be ok for me too. We just thought why we should try to save
some cycles on UP if possible, as the UP-kernel often is used on
slower machines where it would be beneficial for them...

If yes, do you want me to send an updated patch?

Helge
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On Tue, Jun 16, 2009 at 3:13 PM, Aurelien Jarno<aurelien@aurel32.net> wrote:
> On Tue, Jun 16, 2009 at 09:08:37PM +0200, Helge Deller wrote:
>> On 06/16/2009 08:25 AM, Lucas Nussbaum wrote:
>>> On 15/06/09 at 11:31 -0600, Grant Grundler wrote:
>>> PS: if you want an HPPA-specific issue to play with,
>>> http://experimental.debian.net/fetch.php?&pkg=ruby1.9&ver=1.9.0.1-5&arch=hppa&stamp=1213563978&file=log&as=raw
>>> might be a good candidate.
>>
>> In reality it's not (any longer) a hppa specific bug. It's a bug in ruby.
>> Ruby just relies on NPTL specific behaviour of threads and as such plays mad on LinuxThreads, which we still have active on hppa.
>> The good thing is, that the NPTL switch-over was started by Carlos, so I expect that this should be fixed when NPTL hits unstable...
>>
>
> BTW, Carlos, could you please send me the latest version of your
> patches, so that we can actually do the switch with version 2.10?

I'm in the middle of a build-test cycle with glibc/glibc-ports git
head. I'll send you the patches before the end of today.

Cheers,
Carlos.



From - Thu Nov 08 21:04:22 2018
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On Wed, 2009-06-17 at 12:40 +0900, Tejun Heo wrote:
> 
> The following architectures are affected by this change.
> 
> * sh
> * arm
> * cris
> * mips
> * sparc(32)
> * blackfin
> * avr32
> * parisc (broken, under investigation)

I haven't seen anything of this on the parisc list ... what's the
problem?  and do you need systems or any other help to fix it?

James


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	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Parisc List <linux-parisc@vger.kernel.org>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
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James Bottomley wrote:
> On Wed, 2009-06-17 at 12:40 +0900, Tejun Heo wrote:
>> The following architectures are affected by this change.
>>
>> * sh
>> * arm
>> * cris
>> * mips
>> * sparc(32)
>> * blackfin
>> * avr32
>> * parisc (broken, under investigation)
> 
> I haven't seen anything of this on the parisc list ... what's the
> problem?  and do you need systems or any other help to fix it?

I really don't know what's wrong as nothing should be different from
the old percpu allocator as seen from the arch code.

Kyle reported that the system didn't boot with the patch applied.
Access to a system would be nice but boot debugging usually is done
much easier with local access, so I was hoping he would follow up.
Kyle, do you have any details?

Thanks.

-- 
tejun

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Subject: Re: [PATCH 2/9] percpu: use dynamic percpu allocator as the
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Cc: Tejun Heo <tj@kernel.org>, linux-kernel@vger.kernel.org,
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	kyle@mcmartin.ca, cl@linux-foundation.org, Jesper.Nilsson@axis.com,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Wed, Jun 17, 2009 at 08:40:59AM -0400, James Bottomley wrote:
> > * parisc (broken, under investigation)
> 
> I haven't seen anything of this on the parisc list ... what's the
> problem?  and do you need systems or any other help to fix it?
> 

Ah, maybe that was only on linux-kernel or in private mail; we're
oops-ing again in the oops-handler... I almost had this debugged last
weekend, but ran out of time.

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From: Matthias Klose <doko@debian.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
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Grant Grundler schrieb:
> On Fri, Jun 12, 2009 at 08:49:26AM +0200, Luk Claes wrote:
>> Grant Grundler wrote:
>>> +linux-parisc (hppa kernel, compiler and !debian tech forum)
>>>
>>> Neil,
>>> thanks for the summary. I know this is an unpleasant business in general.
>>>
>>> On Tue, Jun 02, 2009 at 03:07:35PM +0100, Neil McGovern wrote:
>>>> Hi,
>>>>
>>>> As mentioned previously[0], the release team haven't been happy with the
>>>> state of the HPPA port in Debian. After the release team meeting[1], it
>>>> has been decided that unfortunatly HPPA will not be supported for
>>>> Squeeze. This was after careful consideration, and wasn't an easy
>>>> decision.
>>>>
>>>> This means that ftpmasters will be asked to remove HPPA from testing and
>>>> unstable from the 30th June. It is suggested that HPPA porters may wish
>>>> to consider using debian-ports.org if they wish to continue with the
>>>> port.
>>>>
>>>> Regards,
>>>> Neil McGovern
>>>>
>>>> [0] http://lists.debian.org/debian-release/2009/04/msg00299.html
>>> Carlos O'Donnell asked some questions in response to [0] and I never
>>> saw any response.  Can an attendee of the above meeting please reply
>>> this email from Carlos?
>>>
>>>     http://lists.debian.org/debian-release/2009/04/msg00303.html
>> Note that it's wrong to assume we will come with the answers.
> 
> I was expecting a summary of specific issues from an organization
> that claims to operate transperently.  The hand waving is easy. But
> doesn't resolve problems and doesn't meet my expectation of an "open"
> organization that I've donated money, time, and materials to.

+1. dropping hppa as a release architecture was not communicated by the release
team at all.  I did spend some time to get gcj / default-jdk working on hppa,
and some money (buying a new disk for a hppa machine) to help this port.  The
time and the money could have spent better, if d-r would have better
communicated about their intent.

hppa is not in a good shape, but there are other architectures which are not
better (sparc, mips*) from a toolchain point of view. what about these?

there are issues pointed out and not addressed like the -dev / -headers packages
 built as binary independent packages just to save disk space, which have an
impact on "slow" architectures, and which are not addressed by the release team.
would the release team mind addressing these real issues, or should we drop
"slow" architectures as well?

  Matthias

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From - Thu Nov 08 21:04:22 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
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To: doko@debian.org (Matthias Klose)
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> Grant Grundler schrieb:
> > On Fri, Jun 12, 2009 at 08:49:26AM +0200, Luk Claes wrote:
> >> Grant Grundler wrote:
> >>> +linux-parisc (hppa kernel, compiler and !debian tech forum)
> >>>
> >>> Neil,
> >>> thanks for the summary. I know this is an unpleasant business in general.
> >>>
> >>> On Tue, Jun 02, 2009 at 03:07:35PM +0100, Neil McGovern wrote:
> >>>> Hi,
> >>>>
> >>>> As mentioned previously[0], the release team haven't been happy with the
> >>>> state of the HPPA port in Debian. After the release team meeting[1], it
> >>>> has been decided that unfortunatly HPPA will not be supported for
> >>>> Squeeze. This was after careful consideration, and wasn't an easy
> >>>> decision.
> >>>>
> >>>> This means that ftpmasters will be asked to remove HPPA from testing and
> >>>> unstable from the 30th June. It is suggested that HPPA porters may wish
> >>>> to consider using debian-ports.org if they wish to continue with the
> >>>> port.
> >>>>
> >>>> Regards,
> >>>> Neil McGovern
> >>>>
> >>>> [0] http://lists.debian.org/debian-release/2009/04/msg00299.html
> >>> Carlos O'Donnell asked some questions in response to [0] and I never
> >>> saw any response.  Can an attendee of the above meeting please reply
> >>> this email from Carlos?
> >>>
> >>>     http://lists.debian.org/debian-release/2009/04/msg00303.html
> >> Note that it's wrong to assume we will come with the answers.
> > 
> > I was expecting a summary of specific issues from an organization
> > that claims to operate transperently.  The hand waving is easy. But
> > doesn't resolve problems and doesn't meet my expectation of an "open"
> > organization that I've donated money, time, and materials to.
> 
> +1. dropping hppa as a release architecture was not communicated by the release
> team at all.  I did spend some time to get gcj / default-jdk working on hppa,
> and some money (buying a new disk for a hppa machine) to help this port.  The
> time and the money could have spent better, if d-r would have better
> communicated about their intent.

I totally understand your frustration.  I have spent thousands of hours
supporting hppa.  At my current rate, this would be...

I believe that intent to drop an architecture should be communicated well
in advance of the fact.  Not doing so will alienate the developer and
user communities.

> hppa is not in a good shape, but there are other architectures which are not
> better (sparc, mips*) from a toolchain point of view. what about these?

Sparc still exists as a mainframe architecture.  If you can afford a
high end server, it's probably not that slow.  64 processors, 256 cores,
and 512 threads at 2.52 GHz can't be all that bad ;)

As you know, it takes a lot of effort to keep a tool chain up to date.
If a manufacturer doesn't provide the support that is needed to keep
the tool chain going, then the open source support for it will die.
It can't be done without access to a variety of hardware, and documentation
that may be proprietary.

Mips and arm are primarily embedded architectures.  Unless one of
these manages to achieve market success as a low-end programmable device
running linux, the user community is going to be limited to the developers
working on products using these devices.  The workstation and server
market using mips is dead.

I was able to build up the tools I need for a Linux arm board in a few
days.  Thus, I don't really see the need for Debian to try to maintain
full blown builds and releases for these architectures.  Certainly,
there's a lot applications for linux in board products, but it's very
product specific.

I can understand the desire to trim architectures.  However, it's clear
the current decision was based on some misinformation, and an unclear
rational.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Matthias Klose wrote:
> Grant Grundler schrieb:
>> On Fri, Jun 12, 2009 at 08:49:26AM +0200, Luk Claes wrote:
>>> Grant Grundler wrote:

>>>> On Tue, Jun 02, 2009 at 03:07:35PM +0100, Neil McGovern wrote:

>>>>     http://lists.debian.org/debian-release/2009/04/msg00303.html
>>> Note that it's wrong to assume we will come with the answers.
>> I was expecting a summary of specific issues from an organization
>> that claims to operate transperently.  The hand waving is easy. But
>> doesn't resolve problems and doesn't meet my expectation of an "open"
>> organization that I've donated money, time, and materials to.
> 
> +1. dropping hppa as a release architecture was not communicated by the release
> team at all.  I did spend some time to get gcj / default-jdk working on hppa,
> and some money (buying a new disk for a hppa machine) to help this port.  The
> time and the money could have spent better, if d-r would have better
> communicated about their intent.

There are issues with the hppa port where the release team considered
dropping it since 2005 communicated to the porter list...

> hppa is not in a good shape, but there are other architectures which are not
> better (sparc, mips*) from a toolchain point of view. what about these?

I'm not aware of current toolchain issues on sparc and the issues on
mips* still seem to be manageable, no?

> there are issues pointed out and not addressed like the -dev / -headers packages
>  built as binary independent packages just to save disk space, which have an
> impact on "slow" architectures, and which are not addressed by the release team.
> would the release team mind addressing these real issues, or should we drop
> "slow" architectures as well?

Well, this Packages issue is clearly a responsability from the FTP Team
and the Release Team would indeed be very happy to have that resolved.

Cheers

Luk



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John David Anglin wrote:
>> Grant Grundler schrieb:
>>> On Fri, Jun 12, 2009 at 08:49:26AM +0200, Luk Claes wrote:
>>>> Grant Grundler wrote:

> I can understand the desire to trim architectures.  However, it's clear
> the current decision was based on some misinformation, and an unclear
> rational.

There is no desire to trim working architectures.

It's very easy to tell there is nothing wrong when you don't have to
deal with unreliable build daemons, endless discussions but no visible
progress (except for java support) and complaints from DSA, package
maintainers and others.

Cheers

Luk
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From - Thu Nov 08 21:04:23 2018
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Luk,
> There is no desire to trim working architectures.
>
> It's very easy to tell there is nothing wrong when you don't have to
> deal with unreliable build daemons, endless discussions but no visible
> progress (except for java support) and complaints from DSA, package
> maintainers and others.
>   
If you looked at https://buildd.debian.org/stats/graph-big.png  I think 
it is obvious hppa is not *that* broken. hppa is >95% built. That is not 
that bad. Of course, it can be better, but if you looked at this with a 
historical perspective the port is really in a pretty good shape.

If you looked at the status of the toolchain posted to the 
gcc-testresults page: http://gcc.gnu.org/ml/gcc-testresults/2009-06/  
you can see that hppa is one of the better architectures out there. Our 
results are on par with (if not better than) other supported architectures.

IMHO hppa contributed a lot to getting Debian packages (and upstream) 
properly fixed to build properly across many other architectures and 
making it easier for new architectures to get incorporated into Debian. 
It's unfortunate that parisc is no longer a commercially popular 
platform, but why should not affect whether Debian supports it?

It's obvious from the recent exchange that there are still people on the 
hppa team (and other Debian maintainers) that are willing to work on 
this architecture to make things better. Also by many metrics it is 
still very much a working architecture. It's really a shame that 
Debian's considering dropping support for HPPA in Squeeze. Please 
reconsider.

randolph
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On Thu, Jun 18, 2009 at 8:33 AM, Luk Claes<luk@debian.org> wrote:
> John David Anglin wrote:
>>> Grant Grundler schrieb:
>>>> On Fri, Jun 12, 2009 at 08:49:26AM +0200, Luk Claes wrote:
>>>>> Grant Grundler wrote:
>
>> I can understand the desire to trim architectures. =C2=A0However, it=
's clear
>> the current decision was based on some misinformation, and an unclea=
r
>> rational.
>
> There is no desire to trim working architectures.
>
> It's very easy to tell there is nothing wrong when you don't have to
> deal with unreliable build daemons, endless discussions but no visibl=
e
> progress (except for java support) and complaints from DSA, package
> maintainers and others.

I'm sorry, but this thread is now over 2 weeks old and we yet have to
see a *rationale* motivating the current decision. Not some claims
about bugs (which we still haven't been pointed at, except for the
ruby one, which we addressed already) affecting the buildds (and that
only you experience). Speaking of which, I'm not aware of any problem
affecting lafayette...

We have given you tangible elements and have answered each and every
questions that have been raised in this thread. The release team, on
the other hand, failed to answer the single question we've been
asking: what's the rationale for dropping parisc?

I joined Debian many years ago because it seemed to me that it had
proper ethics, in particular because decisions were taken
transparently, and were properly - and openly - discussed before
anything final was settled. I too have invested time and money into
the project. I'm extremely disappointed with the handling of the issue
at stake here.

Again, I would like to see a comprehensive rationale for this
decision, so that we can at least try to address the problems at hands
and hope for re-inclusion after squeeze. BTW, can you clarify whether
that would be an option?

Cheers,
T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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> It's very easy to tell there is nothing wrong when you don't have to
> deal with unreliable build daemons, endless discussions but no visible
> progress (except for java support) and complaints from DSA, package
> maintainers and others.

The problem with the build daemons may be a buggy version of nscd.
It causes random problems with uid/gid lookups.  This is just a guess
based on this report:
http://www.nabble.com/Boost-build-failure-on-hppa-td23496708.html

I had problems with sshd and dpkg on my c3750 until I disabled nscd.
It's now running 2.6.30.  It has done a full build and check of GCC
several times, and appears to be stable with this kernel.  This is
with a UP kernel.

With SMP kernels, there's still a problem with random segementation
faults.  These cause application core dumps and are normally logged
in /var/log/debug.  The frequency of these problems vary with kernel
version.

I believe that it should be possible to setup a reliable hppa build
server running a UP kernel.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:23 2018
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From: Luk Claes <luk@debian.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
Subject: Re: HPPA and Squeeze
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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To: Thibaut VARENE <varenet@debian.org>
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Thibaut VARENE wrote:
> On Thu, Jun 18, 2009 at 8:33 AM, Luk Claes<luk@debian.org> wrote:
>> John David Anglin wrote:
>>>> Grant Grundler schrieb:
>>>>> On Fri, Jun 12, 2009 at 08:49:26AM +0200, Luk Claes wrote:
>>>>>> Grant Grundler wrote:
>>> I can understand the desire to trim architectures.  However, it's clear
>>> the current decision was based on some misinformation, and an unclear
>>> rational.
>> There is no desire to trim working architectures.
>>
>> It's very easy to tell there is nothing wrong when you don't have to
>> deal with unreliable build daemons, endless discussions but no visible
>> progress (except for java support) and complaints from DSA, package
>> maintainers and others.
> 
> I'm sorry, but this thread is now over 2 weeks old and we yet have to
> see a *rationale* motivating the current decision. Not some claims
> about bugs (which we still haven't been pointed at, except for the
> ruby one, which we addressed already) affecting the buildds (and that
> only you experience). Speaking of which, I'm not aware of any problem
> affecting lafayette...

lafayette is only doing non-sid to make sure we have a buildd that is
not heavy loaded and very probable to be able to build all security and
stable/oldstable updates...

> We have given you tangible elements and have answered each and every
> questions that have been raised in this thread. The release team, on
> the other hand, failed to answer the single question we've been
> asking: what's the rationale for dropping parisc?

Please read again, it's only in the beginning of the mail...

> I joined Debian many years ago because it seemed to me that it had
> proper ethics, in particular because decisions were taken
> transparently, and were properly - and openly - discussed before
> anything final was settled. I too have invested time and money into
> the project. I'm extremely disappointed with the handling of the issue
> at stake here.

I'm very disappointed at the hppa porters attitudes I must say. They
talk a lot, they assumingly work a lot behind the scenes, but they don't
seem to know what issues there are within the project nor is there any
visible progress unless we prod very hard and even then they are more
worried about the way we prod than about proving they are worthy to
support the port and show some real progress...

> Again, I would like to see a comprehensive rationale for this
> decision, so that we can at least try to address the problems at hands
> and hope for re-inclusion after squeeze. BTW, can you clarify whether
> that would be an option?

It's still an option to stay in squeeze like I told before, but we want
a clear sign that the port will be supported throughout the whole
release cycle (which honestly looks more and more like it could be the
case, though I still fail to see why randomly crashing and segfaulting
buildds and decreasing support for programming languages before Lenny
was not seen as critical enough).

Cheers

Luk
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From - Thu Nov 08 21:04:23 2018
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From: Luk Claes <luk@debian.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
Subject: Re: HPPA and Squeeze
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To: Randolph Chung <randolph@tausq.org>
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Randolph Chung wrote:
> Luk,
>> There is no desire to trim working architectures.
>>
>> It's very easy to tell there is nothing wrong when you don't have to
>> deal with unreliable build daemons, endless discussions but no visible
>> progress (except for java support) and complaints from DSA, package
>> maintainers and others.
>>   
> If you looked at https://buildd.debian.org/stats/graph-big.png  I think
> it is obvious hppa is not *that* broken. hppa is >95% built. That is not
> that bad. Of course, it can be better, but if you looked at this with a
> historical perspective the port is really in a pretty good shape.

As already was explained, the issue is not that builds don't succeed
after multiple tries. The issue is that sometimes multiple tries are
needed and sometimes the buildds crash.

> If you looked at the status of the toolchain posted to the
> gcc-testresults page: http://gcc.gnu.org/ml/gcc-testresults/2009-06/ 
> you can see that hppa is one of the better architectures out there. Our
> results are on par with (if not better than) other supported architectures.

I hope that it will show in the reliability of the buildds and the
general improvement of support for the hppa port.

Cheers

Luk
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From - Thu Nov 08 21:04:23 2018
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From: Luk Claes <luk@debian.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
Subject: HPPA and Squeeze
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Hmm...

It's right that some of my comments are rather harsh, though you must
know that I'm not speaking from a personal perspective.

Personally (and as Release Manager), I would be very happy to have a
good working hppa port for Squeeze and beyond.

I made sure that the hppa port was included into Lenny even when the
Debian System Administrators (DSA), package maintainers, release team
members an others were shouting to drop it. I thought it was unfair to
drop the port just before the release. They accepted my decision as long
as I would make it clear that it was a *big* exception not to be taken
lightly. At the time java support was completely dropped, buildds were
crashing every other day and support for other programing languages
looked poor and the port was still using linuxthreads as the latest of
all ports.

After the release of Lenny there were still not much signs of
improvement to the reliability of the buildds and the move to ntpl (that
was going to solve almost all issues the maintainers had) seemed to not
happen and not going to solve everything. The only surprising
improvement was the regained java support.

It's quite disturbing in my honest opinion that only after us starting a
thread like this one that we get to know the status of some of the
porting efforts and lots of vocal support, but not many visible
improvements. Instead of making sure that there is visibile improvement
after that, this pattern seems to repeat itself which is not looking
very promising. I'm sorry if my and others' frustration is ventilated in
some of the mails. The issues with the buildds are lasting for years
already with lots of time spent by DSA and others.

I still hope that the hppa porters can prove us wrong, fix the kernel
issues (which are the probable cause of the unreliability of the
buildds), finalise the ntpl move and stay on top of porting issues in
Debian in the future.

Please let us now focus on improving the status of the hppa port in
general and the buildds in particular!

Cheers

Luk
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From - Thu Nov 08 21:04:23 2018
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From: Kurt Roeckx <kurt@roeckx.be>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
Subject: Re: HPPA and Squeeze
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Cc: "debian-hppa@lists.debian.org" <debian-hppa@lists.debian.org>,
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I take a regular look at various arches why packages are not
correctly built.  hppa is the most annoying arch for me. If you
look at the stats you will notice that it's almost always
the lowest in the stats.  The reason it more or less keeps up is
because I put alot of time in looking at the state of the
packages and that packages get retried alot by the buildd
maintainer.

One of the most annoying things about it is that packages only
get uploaded 2 or 3 times a week.  This has as effect that alot
of packages fail to build because others haven't been uploaded
yet.  Alot of packages are uninstallable, and are basicly waiting
for others to be built/uploaded.  With only 2/3 uploads a week
this means that packages are uninstallable for _weeks_.  By the
time the first reason has been fixed, something else already make
it uninstallable again.  And I guess this is also the reason
the release team always needs to take a look at why something
is uninstallable on hppa.  I can deal with this, but because of
this reason, hppa is a low priority port for me.

So it's my understanding that the porters have no idea about the
problems.  So I will start to mail you about problems as soon
as I see them and they look like porting issues specific
to hppa.

Here is a list of packages that failed to build because of instability
on the buildds today:
package     | buildd   | error
qgit        | penalosa | make: *** [install] Segmentation fault
acpica-unix | peri     | make: *** [install] Segmentation fault


This are probabaly porting issues, they atleast seems to
only affect hppa:
package        | error
rt-tests       | PTHREAD_PRIO_INHERIT undeclared (NPTL support?)
insighttoolkit | undefined references
axis	       | #531995: Cannot override the final method from ResourceBundle
petsc	       | petscvariables: No such file or directory

Logs can be found at
https://buildd.debian.org/build.cgi?arch=hppa;pkg=$package


Kurt

On Fri, Jun 19, 2009 at 08:05:56AM +0200, Luk Claes wrote:
> Hmm...
> 
> It's right that some of my comments are rather harsh, though you must
> know that I'm not speaking from a personal perspective.
> 
> Personally (and as Release Manager), I would be very happy to have a
> good working hppa port for Squeeze and beyond.
> 
> I made sure that the hppa port was included into Lenny even when the
> Debian System Administrators (DSA), package maintainers, release team
> members an others were shouting to drop it. I thought it was unfair to
> drop the port just before the release. They accepted my decision as long
> as I would make it clear that it was a *big* exception not to be taken
> lightly. At the time java support was completely dropped, buildds were
> crashing every other day and support for other programing languages
> looked poor and the port was still using linuxthreads as the latest of
> all ports.
> 
> After the release of Lenny there were still not much signs of
> improvement to the reliability of the buildds and the move to ntpl (that
> was going to solve almost all issues the maintainers had) seemed to not
> happen and not going to solve everything. The only surprising
> improvement was the regained java support.
> 
> It's quite disturbing in my honest opinion that only after us starting a
> thread like this one that we get to know the status of some of the
> porting efforts and lots of vocal support, but not many visible
> improvements. Instead of making sure that there is visibile improvement
> after that, this pattern seems to repeat itself which is not looking
> very promising. I'm sorry if my and others' frustration is ventilated in
> some of the mails. The issues with the buildds are lasting for years
> already with lots of time spent by DSA and others.
> 
> I still hope that the hppa porters can prove us wrong, fix the kernel
> issues (which are the probable cause of the unreliability of the
> buildds), finalise the ntpl move and stay on top of porting issues in
> Debian in the future.
> 
> Please let us now focus on improving the status of the hppa port in
> general and the buildds in particular!
> 
> Cheers
> 
> Luk
> 
> 
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Subject: Re: HPPA and Squeeze
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On Fri, Jun 19, 2009 at 05:15:26PM +0200, Kurt Roeckx wrote:
> Here is a list of packages that failed to build because of instability
> on the buildds today:
> package     | buildd   | error
> qgit        | penalosa | make: *** [install] Segmentation fault
> acpica-unix | peri     | make: *** [install] Segmentation fault

I had those random segfaults in make on paer too, until we switched to the
UP kernel, at least from what I saw.

Sadly it looks that I forgot the buildd upgrade process on paer some days
ago.  The buildd will be back building ASAP.

Kind regards,
Philipp Kern
--=20
 .''`.  Philipp Kern                        Debian Developer
: :' :  http://philkern.de                         Stable Release Manager
`. `'   xmpp:phil@0x539.de                         Wanna-Build Admin
  `-    finger pkern/key@db.debian.org

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On Fri, Jun 19, 2009 at 05:15:26PM +0200, Kurt Roeckx wrote:
> So it's my understanding that the porters have no idea about the
> problems.  So I will start to mail you about problems as soon
> as I see them and they look like porting issues specific
> to hppa.

netgen fails to built with an internal compiler error since
atleast April 2008.  Logs are at:
https://buildd.debian.org/build.cgi?pkg=netgen;ver=4.4-15;arch=hppa
https://buildd.debian.org/build.cgi?pkg=netgen;arch=hppa


Kurt

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On Fri, Jun 19, 2009 at 05:15:26PM +0200, Kurt Roeckx wrote:
> So it's my understanding that the porters have no idea about the
> problems.  So I will start to mail you about problems as soon
> as I see them and they look like porting issues specific
> to hppa.

Ruby1.9 hangs in test_thread.rb and gets killed after
150 minutes of inactivity.  I assume NPTL will fix this.


Kurt



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On Sat, Jun 20, 2009 at 4:39 PM, Kurt Roeckx<kurt@roeckx.be> wrote:
> On Fri, Jun 19, 2009 at 05:15:26PM +0200, Kurt Roeckx wrote:
>> So it's my understanding that the porters have no idea about the
>> problems. =C2=A0So I will start to mail you about problems as soon
>> as I see them and they look like porting issues specific
>> to hppa.
>
> Ruby1.9 hangs in test_thread.rb and gets killed after
> 150 minutes of inactivity. =C2=A0I assume NPTL will fix this.

yes, it's a ruby bug, it's been explained on this m-l already.
Ruby's implementation cannot handle linuxthreads.

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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> On Fri, Jun 19, 2009 at 05:15:26PM +0200, Kurt Roeckx wrote:
> > So it's my understanding that the porters have no idea about the
> > problems.  So I will start to mail you about problems as soon
> > as I see them and they look like porting issues specific
> > to hppa.
> 
> netgen fails to built with an internal compiler error since
> atleast April 2008.  Logs are at:
> https://buildd.debian.org/build.cgi?pkg=netgen;ver=4.4-15;arch=hppa
> https://buildd.debian.org/build.cgi?pkg=netgen;arch=hppa

g++ -c -I. -I../libsrc/interface -Iinclude -O2 -I/usr/include/GL -I/usr/include/tcl8.4 -I/usr/include/tk8.4 -I/usr/X11R6/include  -DLINUX -DOPENGL -DNGSOLVE basiclinalg/cholesky.cpp basiclinalg/calcinverse.cpp basiclinalg/vecmat.cpp basiclinalg/bandmatrix.cpp basiclinalg/eigensystem.cpp linalg/basevector.cpp linalg/vvector.cpp linalg/basematrix.cpp linalg/sparsematrix.cpp linalg/special_matrix.cpp linalg/cg.cpp linalg/chebyshev.cpp linalg/eigen.cpp linalg/order.cpp linalg/sparsecholesky.cpp linalg/pardisoinverse.cpp linalg/superluinverse.cpp linalg/jacobi.cpp linalg/blockjacobi.cpp linalg/commutingAMG.cpp ngstd/exception.cpp ngstd/table.cpp ngstd/bitarray.cpp ngstd/flags.cpp ngstd/symboltable.cpp ngstd/blockalloc.cpp ngstd/evalfunc.cpp ngstd/templates.cpp ngstd/localheap.cpp
linalg/basematrix.cpp: In member function 'void ngla::S_BaseMatrix<std::complex<double> >::_ZTv0_n72_NK4ngla12S_BaseMatrixISt7complexIdEE12MultTransAddES2_RKNS_10BaseVectorERS4_(ngbla::Complex, const ngla::BaseVector&, ngla::BaseVector&) const':
linalg/basematrix.cpp:208: internal compiler error: in expand_expr_addr_expr_1, at expr.c:6830
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.3/README.Bugs> for instructions.

When an internal compiler error occurs as above, a GCC bug report with
the following information should be filed:

1) failing compiler command,
2) details of the compiler (gcc -v), and
3) the preprocessed source for the failing command.

You can CC me on hppa bugs (danglin at gcc dot gnu dot org).

It takes less than five minutes to generate the above information and
file a bug report.  The preprocessed source is really important as it
is very difficult for others to duplicate the problem otherwise.

In this case, it appears the following assert is triggered.

          /* If the DECL isn't in memory, then the DECL wasn't properly
	     marked TREE_ADDRESSABLE, which will be either a front-end
	     or a tree optimizer bug.  */
	  gcc_assert (MEM_P (result));

There's a fairly high probability that this is a generic bug.

If the bug is a compiler regression, then fixes will applied to all active
branches when available.  Thus, it is useful to know if an earlier compiler
version was able to successfully compile the file.

As things stand, I file more than 90% of hppa compiler bugs based on what
I see in my testing.  However, I'm not trying to build and maintain 10,000
packages.  So, hopefully, the debian build team can help a bit more with
problem reporting.

I recognize that not all bugs are easy to classify.  However, internal
compiler errors are always compiler bugs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Jun 20, 2009 at 12:02:54PM -0400, John David Anglin wrote:
> > On Fri, Jun 19, 2009 at 05:15:26PM +0200, Kurt Roeckx wrote:
> > > So it's my understanding that the porters have no idea about the
> > > problems.  So I will start to mail you about problems as soon
> > > as I see them and they look like porting issues specific
> > > to hppa.
> > 
> > netgen fails to built with an internal compiler error since
> > atleast April 2008.  Logs are at:
> 
> When an internal compiler error occurs as above, a GCC bug report with
> the following information should be filed:
> 
> 1) failing compiler command,
> 2) details of the compiler (gcc -v), and
> 3) the preprocessed source for the failing command.
> 
> You can CC me on hppa bugs (danglin at gcc dot gnu dot org).

I know how to file gcc bugs.  I've just filed one.  I didn't
have time to try and reduce the testcase, and I can't try
different versions of g++ yet.  I've asked to have different
versions installed on paer.

The bug report is at:
http://gcc.gnu.org/PR40505


> It takes less than five minutes to generate the above information and
> file a bug report.

I've never been able to file any (non-automated) bug report in
5 minutes.  And if you don't even have direct access to the
hardware it takes longer.


Kurt

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On Sat, Jun 20, 2009 at 07:48:38PM +0200, Kurt Roeckx wrote:
...
> I know how to file gcc bugs.  I've just filed one.  I didn't
> have time to try and reduce the testcase, and I can't try
> different versions of g++ yet.  I've asked to have different
> versions installed on paer.
> 
> The bug report is at:
> http://gcc.gnu.org/PR40505

Kurt - thanks for filing the bug.

> > It takes less than five minutes to generate the above information and
> > file a bug report.
> 
> I've never been able to file any (non-automated) bug report in
> 5 minutes.  And if you don't even have direct access to the
> hardware it takes longer.

I agree. I'm trying to build netgen here too and if the ICE is easy to
reproduce, can make that available to danglin and add to the bugreport.  

thanks again,
grant
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> > I've never been able to file any (non-automated) bug report in
> > 5 minutes.  And if you don't even have direct access to the
> > hardware it takes longer.
> 
> I agree. I'm trying to build netgen here too and if the ICE is easy to
> reproduce, can make that available to danglin and add to the bugreport.  

There's no problem reproducing the ICE.

I've pretty much localized the problem.  It's a GCC middle-end bug.
The problem is in passing a complex double from a thunk.  The hppa
specification says that values larger than 64 bits are passed by
reference in the 32-bit runtime.  However, the value is in a pair
of registers and not copied to memory.  This doesn't happen in calls
from normal functions because the value gets copied to a stack slot.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> On Fri, Jun 19, 2009 at 05:15:26PM +0200, Kurt Roeckx wrote:
> > Here is a list of packages that failed to build because of instability
> > on the buildds today:
> > package     | buildd   | error
> > qgit        | penalosa | make: *** [install] Segmentation fault
> > acpica-unix | peri     | make: *** [install] Segmentation fault
> 
> I had those random segfaults in make on paer too, until we switched to the
> UP kernel, at least from what I saw.

Based on my experience with building GCC, a recent UP kernel (e.g., 2.6.30)
will avoid the random segfault problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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gcc 4.4 warns about:
drivers/parisc/lba_pci.c: In function 'lba_pat_resources':
drivers/parisc/lba_pci.c:1099: warning: the frame size of 8280 bytes is larger than 4096 bytes

The problem is we declare two large structures on the stack. They don't need
to be on the stack since they are only used during LBA initialization (which
is serialized). Moving to be "static".

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
---

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 59fbbf1..7535cb3 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -980,13 +980,17 @@ static void
 lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 {
 	unsigned long bytecnt;
-	pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;	/* PA_VIEW */
-	pdc_pat_cell_mod_maddr_block_t io_pdc_cell;	/* IO_VIEW */
 	long io_count;
 	long status;	/* PDC return status */
 	long pa_count;
 	int i;
 
+	/* We don't need additional locking around the use of pdc_pat_cell
+	**  since init time PDC device discovery is already serialized.
+	*/
+	static pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;	/* PA_VIEW */
+	static pdc_pat_cell_mod_maddr_block_t io_pdc_cell;	/* IO_VIEW */
+
 	/* return cell module (IO view) */
 	status = pdc_pat_cell_module(&bytecnt, pa_dev->pcell_loc, pa_dev->mod_index,
 				PA_VIEW, & pa_pdc_cell);
--
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From - Thu Nov 08 21:04:24 2018
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On Sat, Jun 20, 2009 at 06:25:20PM -0400, John David Anglin wrote:
> > > I've never been able to file any (non-automated) bug report in
> > > 5 minutes.  And if you don't even have direct access to the
> > > hardware it takes longer.
> > 
> > I agree. I'm trying to build netgen here too and if the ICE is easy to
> > reproduce, can make that available to danglin and add to the bugreport.  
> 
> There's no problem reproducing the ICE.

Indeed...already failed for me.

> I've pretty much localized the problem.  It's a GCC middle-end bug.
> The problem is in passing a complex double from a thunk.  The hppa
> specification says that values larger than 64 bits are passed by
> reference in the 32-bit runtime.  However, the value is in a pair
> of registers and not copied to memory.  This doesn't happen in calls
> from normal functions because the value gets copied to a stack slot.

I'm slightly confused about "stack slot". Could the "pass by reference"
refer to the address in the stack?

Anyway, thanks for quickly tracking this down.

grant

> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Jun 20, 2009 at 04:46:13PM -0600, Grant Grundler wrote:
> gcc 4.4 warns about:
> drivers/parisc/lba_pci.c: In function 'lba_pat_resources':
> drivers/parisc/lba_pci.c:1099: warning: the frame size of 8280 bytes is larger than 4096 bytes
> 
> The problem is we declare two large structures on the stack. They don't need
> to be on the stack since they are only used during LBA initialization (which
> is serialized). Moving to be "static".

Take 2. Per Kyle's request (offlist), use kzalloc instead since it's not
ever used again after boot.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

----
Not tested! Need to fix other b0rkage before I can test.
And feel free to use either version of this patch. Both are trivial.

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 59fbbf1..6585c29 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -980,28 +980,38 @@ static void
 lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 {
 	unsigned long bytecnt;
-	pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;	/* PA_VIEW */
-	pdc_pat_cell_mod_maddr_block_t io_pdc_cell;	/* IO_VIEW */
 	long io_count;
 	long status;	/* PDC return status */
 	long pa_count;
+	pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;	/* PA_VIEW */
+	pdc_pat_cell_mod_maddr_block_t *io_pdc_cell;	/* IO_VIEW */
 	int i;
 
+	pa_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t));
+	if (!pa_pdc_cell)
+		return;
+
+	io_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t));
+	if (!pa_pdc_cell) {
+		kfree(pa_pdc_cell);
+		return;
+	}
+
 	/* return cell module (IO view) */
 	status = pdc_pat_cell_module(&bytecnt, pa_dev->pcell_loc, pa_dev->mod_index,
-				PA_VIEW, & pa_pdc_cell);
-	pa_count = pa_pdc_cell.mod[1];
+				PA_VIEW, pa_pdc_cell);
+	pa_count = pa_pdc_cell->mod[1];
 
 	status |= pdc_pat_cell_module(&bytecnt, pa_dev->pcell_loc, pa_dev->mod_index,
-				IO_VIEW, &io_pdc_cell);
-	io_count = io_pdc_cell.mod[1];
+				IO_VIEW, io_pdc_cell);
+	io_count = io_pdc_cell->mod[1];
 
 	/* We've already done this once for device discovery...*/
 	if (status != PDC_OK) {
 		panic("pdc_pat_cell_module() call failed for LBA!\n");
 	}
 
-	if (PAT_GET_ENTITY(pa_pdc_cell.mod_info) != PAT_ENTITY_LBA) {
+	if (PAT_GET_ENTITY(pa_pdc_cell->mod_info) != PAT_ENTITY_LBA) {
 		panic("pdc_pat_cell_module() entity returned != PAT_ENTITY_LBA!\n");
 	}
 
@@ -1016,8 +1026,8 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 		} *p, *io;
 		struct resource *r;
 
-		p = (void *) &(pa_pdc_cell.mod[2+i*3]);
-		io = (void *) &(io_pdc_cell.mod[2+i*3]);
+		p = (void *) &(pa_pdc_cell->mod[2+i*3]);
+		io = (void *) &(io_pdc_cell->mod[2+i*3]);
 
 		/* Convert the PAT range data to PCI "struct resource" */
 		switch(p->type & 0xff) {
--
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From - Thu Nov 08 21:04:24 2018
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> > I've pretty much localized the problem.  It's a GCC middle-end bug.
> > The problem is in passing a complex double from a thunk.  The hppa
> > specification says that values larger than 64 bits are passed by
> > reference in the 32-bit runtime.  However, the value is in a pair
> > of registers and not copied to memory.  This doesn't happen in calls
> > from normal functions because the value gets copied to a stack slot.
> 
> I'm slightly confused about "stack slot". Could the "pass by reference"
> refer to the address in the stack?

The reference can refer to a location on the stack (region allocated
for locals).  However, values larger than 64 bits can't be passed in the
argument slots.

Dave
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH][linux-2.6] Fix gcc 4.4 warning in lba_pci.c
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On Sat, 2009-06-20 at 17:11 -0600, Grant Grundler wrote:
> On Sat, Jun 20, 2009 at 04:46:13PM -0600, Grant Grundler wrote:
> > gcc 4.4 warns about:
> > drivers/parisc/lba_pci.c: In function 'lba_pat_resources':
> > drivers/parisc/lba_pci.c:1099: warning: the frame size of 8280 bytes is larger than 4096 bytes
> > 
> > The problem is we declare two large structures on the stack. They don't need
> > to be on the stack since they are only used during LBA initialization (which
> > is serialized). Moving to be "static".
> 
> Take 2. Per Kyle's request (offlist), use kzalloc instead since it's not
> ever used again after boot.

Um, wouldn't one of the points of using kzalloc over a static allocation
be to free the memory again after we've finished using it?  Otherwise we
leek a page for every lba.

James


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On Sat, Jun 20, 2009 at 06:26:15PM -0500, James Bottomley wrote:
> On Sat, 2009-06-20 at 17:11 -0600, Grant Grundler wrote:
> > On Sat, Jun 20, 2009 at 04:46:13PM -0600, Grant Grundler wrote:
> > > gcc 4.4 warns about:
> > > drivers/parisc/lba_pci.c: In function 'lba_pat_resources':
> > > drivers/parisc/lba_pci.c:1099: warning: the frame size of 8280 bytes is larger than 4096 bytes
> > > 
> > > The problem is we declare two large structures on the stack. They don't need
> > > to be on the stack since they are only used during LBA initialization (which
> > > is serialized). Moving to be "static".
> > 
> > Take 2. Per Kyle's request (offlist), use kzalloc instead since it's not
> > ever used again after boot.
> 
> Um, wouldn't one of the points of using kzalloc over a static allocation
> be to free the memory again after we've finished using it?  Otherwise we
> leek a page for every lba.

Doh...of course!
I was too worried about the error case to think about the regular release.
I'll repost a clean version.

In the meantime...if someone can explain this error I could build and test:
fs/nfs/nfsroot.c:400: error: __setup_str_nfs_root_setup causes a section type conflict

something to do with __setup(nfs_root_setup) but it's not obvious to me what.


thanks,
grant
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From - Thu Nov 08 21:04:24 2018
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Subject: Re: [PATCH][linux-2.6] Fix gcc 4.4 warning in lba_pci.c
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On Sat, Jun 20, 2009 at 06:26:15PM -0500, James Bottomley wrote:
...
> > Take 2. Per Kyle's request (offlist), use kzalloc instead since it's not
> > ever used again after boot.
> 
> Um, wouldn't one of the points of using kzalloc over a static allocation
> be to free the memory again after we've finished using it?  Otherwise we
> leek a page for every lba.

James,
Thanks again for gating my utter fail.
Fixed in this version.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
----
Again...still not tested. :(

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 59fbbf1..a30e668 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -980,28 +980,38 @@ static void
 lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 {
 	unsigned long bytecnt;
-	pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;	/* PA_VIEW */
-	pdc_pat_cell_mod_maddr_block_t io_pdc_cell;	/* IO_VIEW */
 	long io_count;
 	long status;	/* PDC return status */
 	long pa_count;
+	pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;	/* PA_VIEW */
+	pdc_pat_cell_mod_maddr_block_t *io_pdc_cell;	/* IO_VIEW */
 	int i;
 
+	pa_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t));
+	if (!pa_pdc_cell)
+		return;
+
+	io_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t));
+	if (!pa_pdc_cell) {
+		kfree(pa_pdc_cell);
+		return;
+	}
+
 	/* return cell module (IO view) */
 	status = pdc_pat_cell_module(&bytecnt, pa_dev->pcell_loc, pa_dev->mod_index,
-				PA_VIEW, & pa_pdc_cell);
-	pa_count = pa_pdc_cell.mod[1];
+				PA_VIEW, pa_pdc_cell);
+	pa_count = pa_pdc_cell->mod[1];
 
 	status |= pdc_pat_cell_module(&bytecnt, pa_dev->pcell_loc, pa_dev->mod_index,
-				IO_VIEW, &io_pdc_cell);
-	io_count = io_pdc_cell.mod[1];
+				IO_VIEW, io_pdc_cell);
+	io_count = io_pdc_cell->mod[1];
 
 	/* We've already done this once for device discovery...*/
 	if (status != PDC_OK) {
 		panic("pdc_pat_cell_module() call failed for LBA!\n");
 	}
 
-	if (PAT_GET_ENTITY(pa_pdc_cell.mod_info) != PAT_ENTITY_LBA) {
+	if (PAT_GET_ENTITY(pa_pdc_cell->mod_info) != PAT_ENTITY_LBA) {
 		panic("pdc_pat_cell_module() entity returned != PAT_ENTITY_LBA!\n");
 	}
 
@@ -1016,8 +1026,8 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 		} *p, *io;
 		struct resource *r;
 
-		p = (void *) &(pa_pdc_cell.mod[2+i*3]);
-		io = (void *) &(io_pdc_cell.mod[2+i*3]);
+		p = (void *) &(pa_pdc_cell->mod[2+i*3]);
+		io = (void *) &(io_pdc_cell->mod[2+i*3]);
 
 		/* Convert the PAT range data to PCI "struct resource" */
 		switch(p->type & 0xff) {
@@ -1096,6 +1106,9 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 			break;
 		}
 	}
+
+	kfree(pa_pdc_cell);
+	kfree(io_pdc_cell);
 }
 #else
 /* keep compiler from complaining about missing declarations */
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From - Thu Nov 08 21:04:24 2018
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Subject: Re: [PATCH][linux-2.6] Fix gcc 4.4 warning in lba_pci.c
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> +	pa_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t));
> +	if (!pa_pdc_cell)
> +		return;
> +
> +	io_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t));

The kzalloc calls are missing an argument...

Dave
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From - Thu Nov 08 21:04:25 2018
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Subject: Re: [PATCH][linux-2.6] Fix gcc 4.4 warning in lba_pci.c
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Cc: Grant Grundler <grundler@parisc-linux.org>,
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Sat, Jun 20, 2009 at 07:39:28PM -0400, John David Anglin wrote:
> > +	pa_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t));
> > +	if (!pa_pdc_cell)
> > +		return;
> > +
> > +	io_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t));
> 
> The kzalloc calls are missing an argument...

Doh #2....thank you, Dave. Time for a nap. 5h is clearly not enough.
I'll risk posting another version even though I still can't build.

BTW, here is the offending error:
fs/nfs/nfsroot.c:400: error: __setup_str_nfs_root_setup causes a section type conflict

and the offending line 400 after preprocessing:
static const char __setup_str_nfs_root_setup[] __attribute__ ((__section__(".init.rodata"))) __attribute__((aligned(1))) = "nfsroot="; static struct obs_kernel_param __setup_nfs_root_setup __attribute__((__used__)) __attribute__ ((__section__(".init.setup"))) __attribute__((aligned((sizeof(long))))) = { __setup_str_nfs_root_setup, nfs_root_setup, 0 };

thanks,
grant
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From - Thu Nov 08 21:04:25 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [PATCH][linux-2.6] v4 : Fix gcc 4.4 warning in lba_pci.c
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On Sat, Jun 20, 2009 at 04:46:13PM -0600, Grant Grundler wrote:
gcc 4.4 warns about:
drivers/parisc/lba_pci.c: In function 'lba_pat_resources':
drivers/parisc/lba_pci.c:1099: warning: the frame size of 8280 bytes is larger than 4096 bytes

The problem is we declare two large structures on the stack. They don't need
to be on the stack since they are only used during LBA initialization (which
is serialized). Moving to be "static".

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
---
Take #3. Still can not build a kernel to test. Thanks to James Bottomley and
John David Anglin for catching the dumbest errors I've done in a long time.


diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 59fbbf1..bc7a82d 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -980,28 +980,38 @@ static void
 lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 {
 	unsigned long bytecnt;
-	pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;	/* PA_VIEW */
-	pdc_pat_cell_mod_maddr_block_t io_pdc_cell;	/* IO_VIEW */
 	long io_count;
 	long status;	/* PDC return status */
 	long pa_count;
+	pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;	/* PA_VIEW */
+	pdc_pat_cell_mod_maddr_block_t *io_pdc_cell;	/* IO_VIEW */
 	int i;
 
+	pa_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t), GFP_KERNEL);
+	if (!pa_pdc_cell)
+		return;
+
+	io_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t), GFP_KERNEL);
+	if (!pa_pdc_cell) {
+		kfree(pa_pdc_cell);
+		return;
+	}
+
 	/* return cell module (IO view) */
 	status = pdc_pat_cell_module(&bytecnt, pa_dev->pcell_loc, pa_dev->mod_index,
-				PA_VIEW, & pa_pdc_cell);
-	pa_count = pa_pdc_cell.mod[1];
+				PA_VIEW, pa_pdc_cell);
+	pa_count = pa_pdc_cell->mod[1];
 
 	status |= pdc_pat_cell_module(&bytecnt, pa_dev->pcell_loc, pa_dev->mod_index,
-				IO_VIEW, &io_pdc_cell);
-	io_count = io_pdc_cell.mod[1];
+				IO_VIEW, io_pdc_cell);
+	io_count = io_pdc_cell->mod[1];
 
 	/* We've already done this once for device discovery...*/
 	if (status != PDC_OK) {
 		panic("pdc_pat_cell_module() call failed for LBA!\n");
 	}
 
-	if (PAT_GET_ENTITY(pa_pdc_cell.mod_info) != PAT_ENTITY_LBA) {
+	if (PAT_GET_ENTITY(pa_pdc_cell->mod_info) != PAT_ENTITY_LBA) {
 		panic("pdc_pat_cell_module() entity returned != PAT_ENTITY_LBA!\n");
 	}
 
@@ -1016,8 +1026,8 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 		} *p, *io;
 		struct resource *r;
 
-		p = (void *) &(pa_pdc_cell.mod[2+i*3]);
-		io = (void *) &(io_pdc_cell.mod[2+i*3]);
+		p = (void *) &(pa_pdc_cell->mod[2+i*3]);
+		io = (void *) &(io_pdc_cell->mod[2+i*3]);
 
 		/* Convert the PAT range data to PCI "struct resource" */
 		switch(p->type & 0xff) {
@@ -1096,6 +1106,9 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 			break;
 		}
 	}
+
+	kfree(pa_pdc_cell);
+	kfree(io_pdc_cell);
 }
 #else
 /* keep compiler from complaining about missing declarations */
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From - Thu Nov 08 21:04:25 2018
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Subject: Re: [PATCH][linux-2.6] Fix gcc 4.4 warning in lba_pci.c
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> In the meantime...if someone can explain this error I could build and test:
> fs/nfs/nfsroot.c:400: error: __setup_str_nfs_root_setup causes a section type conflict
> 
> something to do with __setup(nfs_root_setup) but it's not obvious to me what.

Google says see:
http://lkml.org/lkml/2009/5/26/329

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:25 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Segfault in __c_f_f_c during strace of nptl application.
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Dave,

I saw strace segfault in __canonicalize_funcptr_for_compare while
trying to trace an nptl enabled hppa application.

Program received signal SIGSEGV, Segmentation fault.
0x0002b3bc in __canonicalize_funcptr_for_compare ()
Current language:  auto; currently asm
(gdb) bt
#0  0x0002b3bc in __canonicalize_funcptr_for_compare ()
#1  0x00025fec in sys_rt_sigaction (tcp=0x4e070) at signal.c:1886
#2  0x00017aec in trace_syscall (tcp=0x4e070) at syscall.c:2549
#3  0x00016c98 in main (argc=<value optimized out>, argv=0xc032f01c)
at strace.c:2475
(gdb)

It's 100% reproducible. What should I try to debug this?

Cheers,
Carlos.
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> I saw strace segfault in __canonicalize_funcptr_for_compare while
> trying to trace an nptl enabled hppa application.
> 
> Program received signal SIGSEGV, Segmentation fault.
> 0x0002b3bc in __canonicalize_funcptr_for_compare ()
> Current language:  auto; currently asm
> (gdb) bt
> #0  0x0002b3bc in __canonicalize_funcptr_for_compare ()
> #1  0x00025fec in sys_rt_sigaction (tcp=0x4e070) at signal.c:1886
> #2  0x00017aec in trace_syscall (tcp=0x4e070) at syscall.c:2549
> #3  0x00016c98 in main (argc=<value optimized out>, argv=0xc032f01c)
> at strace.c:2475
> (gdb)
> 
> It's 100% reproducible. What should I try to debug this?

Look at the comparison in sys_rt_sigaction.  The last time this
happened, this involved a comparison with a special value that
wasn't a function pointer.  I think you are seeing the same problem
as Kyle.

I believe that the segv can be avoided by casting the values in the
comparison:

> > > which is:
> > > 
> > >                 if (sa.__sigaction_handler.__sa_handler == SIG_ERR)
> > >                         tprintf("{SIG_ERR, ");
> > 
> > Is __canonicalize_funcptr_for_compare choking on SIG_ERR?  This is
> > a special value (-1).  The plabel bit is set.

However, this is a cope out.  __canonicalize_funcptr_for_compare
actually faults on sa.__sigaction_handler.__sa_handler.

You can put a break on __canonicalize_funcptr_for_compare and look at
what's being passed in.

Looking at my email archive, I see the real cause involves kernel memory
maps:

  > > > On Wed, May 06, 2009 at 01:39:49PM -0400, John David Anglin wrote:
  > > > > > The tombstone is:
  > > > > > 
  > > > > > do_page_fault() pid=10205 command='strace' type=15 address=0x407d2f18
  > > > > > vm_start = 0x4068d000, vm_end = 0x4068f000
  > > > > 
  > > > > So, the pointer passed to __canonicalize_funcptr_for_compare is outside
  > > > > the vm range.
  > > > > 
  > > > > Maybe "info sharedlib" will show something.  Need to find out why the
  > > > > address of the function descriptor is outside the vm range.
  > > > > 
  > > > > > > 405c0000-405c2000 rwxp 405c0000 00:00 0 
  > > 
  > > The function pointer address is also outside this range.
  > > 
  > 
  > Sorry, this was with a rebuilt binary, and it lies within this range.
  
  It's marked rwxp, so why the fault?

We never figured out why the fault actually occurred (Kyle got busy).
It seems like there is a problem with the address mapping during signals.
However, there was some rebuilds in the above and I'm not sure the
analysis is correct.  However, I'm sure the problem isn't with
__canonicalize_funcptr_for_compare.

So, the quick fix to get strace going is to rebuild casting the function
pointers to long.  However, I think you will find that it has other problems.
You might have more success with the old version that Kyle patched a
year or so ago (posted in debian people).  Randolph was working on a program
called atrace.  I tried it but didn't have much luck with it.

PS: Hows NPTL comming?

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
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On Sun, Jun 21, 2009 at 11:20 AM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> We never figured out why the fault actually occurred (Kyle got busy).
> It seems like there is a problem with the address mapping during sign=
als.
> However, there was some rebuilds in the above and I'm not sure the
> analysis is correct. =A0However, I'm sure the problem isn't with
> __canonicalize_funcptr_for_compare.

Hoccam's razor. It's a gcc bug.

The arg0 to __c_f_f_c is being clobbered by the previous call.
Rearrangeing the if-the-else cases into a set if cases fixes the
clobbering of arg0 and fixes strace.

The move of the fptr into r26 is moved before the call to umove, then
umove clobbers r26, then __c_f_f_c is called and crashes.

> So, the quick fix to get strace going is to rebuild casting the funct=
ion
> pointers to long. =A0However, I think you will find that it has other=
 problems.
> You might have more success with the old version that Kyle patched a
> year or so ago (posted in debian people). =A0Randolph was working on =
a program
> called atrace. =A0I tried it but didn't have much luck with it.

The quick fix is to reorganize the if-then-else statement.

> PS: Hows NPTL comming?

The implementation is done. The testsing shows no regressions. The
custom compat testsuite I wrote also passes every test.

Unfortunately last night I was up late working and I managed to both
erase (be careful of bind mounts) half of my custom compat testsuite
and the chroot I was going to use for more advanced testing.

On todays schedule is to rebuild the chroot and test gnome using
vnc4server with the new libs.

At a later date I'll have to rewrite the missing pieces of the custom
compat testsuite.

Cheers,
Carlos.
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> On Sun, Jun 21, 2009 at 11:20 AM, John David
> Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> > We never figured out why the fault actually occurred (Kyle got busy).
> > It seems like there is a problem with the address mapping during signals.
> > However, there was some rebuilds in the above and I'm not sure the
> > analysis is correct. =A0However, I'm sure the problem isn't with
> > __canonicalize_funcptr_for_compare.
> 
> Hoccam's razor. It's a gcc bug.
> 
> The arg0 to __c_f_f_c is being clobbered by the previous call.
> Rearrangeing the if-the-else cases into a set if cases fixes the
> clobbering of arg0 and fixes strace.
> 
> The move of the fptr into r26 is moved before the call to umove, then
> umove clobbers r26, then __c_f_f_c is called and crashes.

This needs a GCC bug report.  It an important defect.  As usually,
preprocessed source is needed and compiler version.  The version of
strace in lenny/testing doesn't have any calls to __c_f_f_c.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
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On Sun, Jun 21, 2009 at 1:16 PM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
>> The move of the fptr into r26 is moved before the call to umove, the=
n
>> umove clobbers r26, then __c_f_f_c is called and crashes.
>
> This needs a GCC bug report. =A0It an important defect. =A0As usually=
,
> preprocessed source is needed and compiler version. =A0The version of
> strace in lenny/testing doesn't have any calls to __c_f_f_c.

Sorry, this turns out not to be correct, after tracing the assembly
completely (including loads in delayed branches) it looks like the
location read from the pid through ptrace might be wrong. I'll have to
keep debugging this.

Cheers,
Carlos.
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
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To: carlos@systemhalted.org (Carlos O'Donell)
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> Sorry, this turns out not to be correct, after tracing the assembly
> completely (including loads in delayed branches) it looks like the
> location read from the pid through ptrace might be wrong. I'll have to
> keep debugging this.

Delayed branches are a nasty invention.  I am testing a patch to
fix a problem that appeared last week.

When a conditional branch with an unfilled delay slot is followed
by an asm, bad things may end up in the delay slot.  Even worse,
the branch may branch into the delay slot.  GCC has no idea what's
in an asm.  So, I'm trying to add a nop in the delay slot when a
conditional branch is followed by an asm.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
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On Sun, Jun 21, 2009 at 4:21 PM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
>> Sorry, this turns out not to be correct, after tracing the assembly
>> completely (including loads in delayed branches) it looks like the
>> location read from the pid through ptrace might be wrong. I'll have =
to
>> keep debugging this.
>
> Delayed branches are a nasty invention. =A0I am testing a patch to
> fix a problem that appeared last week.

Interesting.

> When a conditional branch with an unfilled delay slot is followed
> by an asm, bad things may end up in the delay slot. =A0Even worse,
> the branch may branch into the delay slot. =A0GCC has no idea what's
> in an asm. =A0So, I'm trying to add a nop in the delay slot when a
> conditional branch is followed by an asm.

There is an on-and-off-again bug in glibc's vfprintf.c implementation
that causes DBR to miscompile that file, but it comes and goes
depending on the gcc version. I filed a bug once, but because I
couldn't produce a reduced testcase Pinski closed it. If I see it
again I'll try again to produce a reduced testcase.

How's 4.4 on hppa?

Cheers,
Carlos.
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From - Thu Nov 08 21:04:25 2018
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Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
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To: carlos@systemhalted.org (Carlos O'Donell)
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> There is an on-and-off-again bug in glibc's vfprintf.c implementation
> that causes DBR to miscompile that file, but it comes and goes
> depending on the gcc version. I filed a bug once, but because I
> couldn't produce a reduced testcase Pinski closed it. If I see it
> again I'll try again to produce a reduced testcase.

That one is a reorg bug.  There have been some fixes in that area.  If
you can reproduce with 4.3 or later, I will look at it.  Don't worry
about reproducing a testcase.  Just attached the entire preprocessed
source (compressed if necessary).  You can reopen old bug.

In PR40468, the generated assembler code looked like this:

0x000104e4 <f+56>:      cmpb,<>,n ret0,r19,0x104e8 <f+60>
0x000104e8 <f+60>:      b,l 0x104a8 <ff>,rp
0x000104ec <f+64>:      ldi 1,r26

I don't really understand how the hardware handles the above, but
the b,l didn't correctly update rp, and ff returned to f.  I would
have thought the instruction sequence would go:

f+56, f+60 nullified, f+60, f+64, ff, ..., f+68.

> How's 4.4 on hppa?

Probably as good as any other version (few bugs fixed, a few new
ones).  It has better error checking, but that may be annoying.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
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Cc: Lucas Nussbaum <lucas@lucas-nussbaum.net>,
	Helge Deller <deller@gmx.de>,
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	HPPA porters <debian-hppa@lists.debian.org>,
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On Tue, Jun 16, 2009 at 3:13 PM, Aurelien Jarno<aurelien@aurel32.net> wrote:
> On Tue, Jun 16, 2009 at 09:08:37PM +0200, Helge Deller wrote:
>> On 06/16/2009 08:25 AM, Lucas Nussbaum wrote:
>>> On 15/06/09 at 11:31 -0600, Grant Grundler wrote:
>>> PS: if you want an HPPA-specific issue to play with,
>>> http://experimental.debian.net/fetch.php?&pkg=ruby1.9&ver=1.9.0.1-5&arch=hppa&stamp=1213563978&file=log&as=raw
>>> might be a good candidate.
>>
>> In reality it's not (any longer) a hppa specific bug. It's a bug in ruby.
>> Ruby just relies on NPTL specific behaviour of threads and as such plays mad on LinuxThreads, which we still have active on hppa.
>> The good thing is, that the NPTL switch-over was started by Carlos, so I expect that this should be fixed when NPTL hits unstable...
>>
>
> BTW, Carlos, could you please send me the latest version of your
> patches, so that we can actually do the switch with version 2.10?
>

The latest patches are now up.

Core glibc patch:
http://www.parisc-linux.org/~carlos/2009-06-20-glibc-hppa-nptl.diff

Ports glibc patch:
http://www.parisc-linux.org/~carlos/2009-06-20-glibc-ports-hppa-nptl.diff

No regressions in the testsuite for hppa-linux-gnu.

No failures in my custom testsuite for the transition.

However, the usability testing in a chroot + vnc is showing that some
applications are segfaulting. I've been looking into this today.

Cheers,
Carlos.
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Cc: Carlos O'Donell <carlos@systemhalted.org>,
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> Randolph was working on a program
> called atrace.  I tried it but didn't have much luck with it.
>   

Wow, somebody tried it! :)

Can you tell me more about what is not working?

randolph
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From: Petr Salinger <Petr.Salinger@seznam.cz>
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Hi,

> Core glibc patch:
> http://www.parisc-linux.org/~carlos/2009-06-20-glibc-hppa-nptl.diff

> Ports glibc patch:
> http://www.parisc-linux.org/~carlos/2009-06-20-glibc-ports-hppa-nptl.diff

> However, the usability testing in a chroot + vnc is showing that some
> applications are segfaulting. I've been looking into this today.

I still think there should be support for mixed ABI calls.
It would be sufficient to have at least one int of the previous
lt __spinlock place as unused in NTPL layout.

There should be change of current NPTL structure to allow it.
There are only two types of correct initializers.
It either contains all zero (modulo i.e __kind)
or it contains four one's and the rest is zero (modulo i.e __kind).

See also thread http://lists.debian.org/debian-hppa/2008/09/msg00018.html

typedef union
{
   struct __pthread_mutex_s
   {
     int __lock;
     unsigned int __count;
     int __owner;
     /* KIND must stay at this position in the structure to maintain
        binary compatibility.  */
     int __kind;
     int __lt_compat;
     unsigned int __nusers;
     __extension__ union
     {
       int __spins;
       __pthread_slist_t __list;
     };
   } __data;
   char __size[__SIZEOF_PTHREAD_MUTEX_T];
   long int __align;
} pthread_mutex_t;


The __lt_compat is inialized as zero under NPTL, it is initialized
as 1 under linuxthreads.

Similarly also for the other types.
The question is why have been sizeof(pthread_cond_t)
expanded from 48 bytes under linuxthreads into
64 bytes under NPTL. I do not see a reson for it.
IMHO, it might significantly break compatibility.

The current NPTL implementation zeroes all the fields at the begining, 
doesn't it ?
So at the begin of each affected function will be (asm coded ?)

   if (v->__lt_compat)
   {
      lock_global_pt_lock();
      if (v->__lt_compat)
      {
      		zero_all_but_lt_compat_field();
 		barrier();
                 v->__lt_compat = 0;
      };
      unlock_global_pt_lock();
   };

For the new NPTL layout the zeroing code will not be taken,
therefore almost no overhead.
There might be a congestion on global_pt_lock, but I do not believe,
there are many static initilized mutexes in any real program.
There will be no need for allocation any new structures.

The drawback is hppa specific pthread.h or need to convince Uli
to add unused zeroed field into affected structures globally.

Petr

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Xref: news.gmane.org gmane.linux.debian.ports.hppa:5788 gmane.linux.ports.parisc:1813
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On Mon, Jun 22, 2009 at 6:51 AM, Petr Salinger<Petr.Salinger@seznam.cz> wro=
te:
>> However, the usability testing in a chroot + vnc is showing that some
>> applications are segfaulting. I've been looking into this today.
>
> I still think there should be support for mixed ABI calls.
> See also thread http://lists.debian.org/debian-hppa/2008/09/msg00018.html

It sounds like a good feature, but my time is restricted so I
implemented the simplest interface possible that I could prove worked.
If you have ample free time I suggest you post a version of the patch
with your enhancements. I'd be more than willing to test your patches.

> The question is why have been sizeof(pthread_cond_t)
> expanded from 48 bytes under linuxthreads into
> 64 bytes under NPTL. I do not see a reson for it.
> IMHO, it might significantly break compatibility.

This is technically a mistake, the new NPTL structure should be 48
bytes as well. I'll fix that in my sources.

However, it doesn't break compatibility in the current patches, only
in your scheme of mixed ABI support.

> The current NPTL implementation zeroes all the fields at the begining,
> doesn't it ?

Which implementation? The compat code? No, it uses the ldcw spinlock
to protect structure accesses.

> So at the begin of each affected function will be (asm coded ?)
>
> =A0if (v->__lt_compat)
> =A0{
> =A0 =A0 lock_global_pt_lock();
> =A0 =A0 if (v->__lt_compat)
> =A0 =A0 {
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0zero_all_but_lt_compat_field();
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0barrier();
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0v->__lt_compat =3D 0;
> =A0 =A0 };
> =A0 =A0 unlock_global_pt_lock();
> =A0};
>
> For the new NPTL layout the zeroing code will not be taken,
> therefore almost no overhead.
> There might be a congestion on global_pt_lock, but I do not believe,
> there are many static initilized mutexes in any real program.
> There will be no need for allocation any new structures.

There are tons of statically initialized mutexs, gnome and gdk are
full of them as an example.

> The drawback is hppa specific pthread.h or need to convince Uli
> to add unused zeroed field into affected structures globally.

That is no longer a drawback, most machines these days need to copy
core header files and modify.

Cheers,
Carlos.



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>> I still think there should be support for mixed ABI calls.
>> See also thread http://lists.debian.org/debian-hppa/2008/09/msg00018.htm=
l
>
> It sounds like a good feature, but my time is restricted so I
> implemented the simplest interface possible that I could prove worked.
> If you have ample free time I suggest you post a version of the patch
> with your enhancements. I'd be more than willing to test your patches.

I have to admin I will not write the code, I only propose the idea.

1) put "__lt_compat" field in a place where originally is LT initializer.

--- sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h
+++ sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h.compat=20
@@ -70,6 +70,7 @@ pthread_mutex_t
      /* KIND must stay at this position in the structure to maintain
         binary compatibility.  */
      int __kind;
+    int __lt_compat;
      unsigned int __nusers;
      __extension__ union
      {
@@ -95,10 +96,11 @@ pthread_cond_t
    struct
    {
      int __lock;
-    unsigned int __futex;
+    int __lt_compat;
      __extension__ unsigned long long int __total_seq;
      __extension__ unsigned long long int __wakeup_seq;
      __extension__ unsigned long long int __woken_seq;
+    unsigned int __futex;
      void *__mutex;
      unsigned int __nwaiters;
      unsigned int __broadcast_seq;
@@ -130,6 +132,9 @@ pthread_rwlock_t
    struct
    {
      int __lock;
+    int __lt_compat;
+    int __hppa_pad1;
+    int __hppa_pad2;
      unsigned int __nr_readers;
      unsigned int __readers_wakeup;
      unsigned int __writer_wakeup;

2) create hppa specific pthread.h with just altered initializers (more zero=
es)

3) At the begin of each affected function

>> =A0if (v->__lt_compat)
>> =A0{
>> =A0 =A0 lock_global_pt_lock();
>> =A0 =A0 if (v->__lt_compat)
>> =A0 =A0 {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0zero_the_same_fields_as_NPTL_but_lt_compa=
t_field();
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0barrier();
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0v->__lt_compat =3D 0;
>> =A0 =A0 };
>> =A0 =A0 unlock_global_pt_lock();
>> =A0};

This just atomically converts linuxthreads initialized variable into NPTL=
=20
initialized variable.

>> For the new NPTL layout the zeroing code will not be taken,
>> therefore almost no overhead.
>> There might be a congestion on global_pt_lock, but I do not believe,
>> there are many static initilized mutexes in any real program.
>> There will be no need for allocation any new structures.
>
> There are tons of statically initialized mutexs, gnome and gdk are
> full of them as an example.

Hopefully not many will try to lock global_pt_lock in the same time.
Also rebuild against NPTL enabled libc-dev lowers the number
of possible linuxthreads initialized variables.

Petr

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From - Thu Nov 08 21:04:26 2018
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To: randolph@tausq.org (Randolph Chung)
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> Can you tell me more about what is not working?

At this point, I'm fuzzy as to what happened.  I believe that I was
trying to trace the syscalls by sshd during login attempts to try to
gain information on the uid/gid authentication problem.

One little thing I noticed this morning (bad typing):
dave@hiauly6:~/opt/gnu/bin$ atrace --trace ls
Segmentation fault (core dumped)

Core was generated by `atrace --trace ls'.
Program terminated with signal 11, Segmentation fault.
#0  0x40520d90 in strncmp () from /lib/libc.so.6
(gdb) bt
#0  0x40520d90 in strncmp () from /lib/libc.so.6
#1  0x4055c848 in _getopt_internal_r () from /lib/libc.so.6
#2  0x4055d52c in _getopt_internal () from /lib/libc.so.6
#3  0x4055d644 in getopt_long () from /lib/libc.so.6
#4  0x00011ba8 in option_parse (argc=3, argv=0xfb66201c, opt=0x2dd80,
    proc=0xfb662208) at option.c:102
#5  0x00011780 in main (argc=<value optimized out>, argv=0xfb66201c)
    at atrace.c:58

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Jun 20, 2009 at 08:06:34PM -0400, John David Anglin wrote:
> > In the meantime...if someone can explain this error I could build and test:
> > fs/nfs/nfsroot.c:400: error: __setup_str_nfs_root_setup causes a section type conflict
> > 
> > something to do with __setup(nfs_root_setup) but it's not obvious to me what.
> 
> Google says see:
> http://lkml.org/lkml/2009/5/26/329

Thank you...removing the __initconst added by this change:
-static match_table_t __initconst tokens = {
+static const match_table_t tokens __initconst = {

allows me to build. Is no one else building with NFSROOT enabled?

thanks,
grant
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On Tue, Jun 23, 2009 at 2:31 AM, Grant
Grundler<grundler@parisc-linux.org> wrote:
> On Sat, Jun 20, 2009 at 08:06:34PM -0400, John David Anglin wrote:
>> > In the meantime...if someone can explain this error I could build and test:
>> > fs/nfs/nfsroot.c:400: error: __setup_str_nfs_root_setup causes a section type conflict
>> >
>> > something to do with __setup(nfs_root_setup) but it's not obvious to me what.
>>
>> Google says see:
>> http://lkml.org/lkml/2009/5/26/329
>
> Thank you...removing the __initconst added by this change:
> -static match_table_t __initconst tokens = {
> +static const match_table_t tokens __initconst = {
>
> allows me to build. Is no one else building with NFSROOT enabled?

I boot directly from disk on both my test machines (a500, c3k).

Cheers,
Carlos.
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From - Thu Nov 08 21:04:26 2018
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [PATCH] misplaced parenthesis?
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To: Roel Kluin <roel.kluin@gmail.com>, kyle@mcmartin.ca,
	linux-parisc@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>
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Here's an updated patch:

Reported-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index 2d68431..827e535 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -405,7 +405,7 @@ byte_copy:

 unaligned_copy:
        /* possibly we are aligned on a word, but not on a double... */
-       if (likely(t1 & (sizeof(unsigned int)-1)) =3D=3D 0) {
+       if (likely((t1 & (sizeof(unsigned int)-1)) =3D=3D 0)) {
                t2 =3D src & (sizeof(unsigned int) - 1);

                if (unlikely(t2 !=3D 0)) {


On Mon, May 18, 2009 at 9:42 AM, Randolph Chung<randolph@tausq.org> wro=
te:
> The wrong version of course produces different code....
>
> the original and the corrected one may produce different code dependi=
ng on
> how the compiler schedules things.
>
> randolph
>
> Matt Turner wrote:
>>
>> Does gcc produce different code for the three variations?
>>
>> Matt
>>
>> On Sat, May 16, 2009 at 12:14 AM, Randolph Chung <randolph@tausq.org=
>
>> wrote:
>>
>>>
>>> This is a bit confusingly written, but your patch does not appear t=
o be
>>> correct.
>>>
>>> =3D=3D has higher precedence than &, so you are basically changing =
it to:
>>> if (likely(t1 & 1))
>>>
>>> it really should be
>>>
>>> - =A0 =A0 =A0 if (likely(t1 & (sizeof(unsigned int)-1)) =3D=3D 0) {
>>> + =A0 =A0 =A0 if (likely((t1 & (sizeof(unsigned int)-1)) =3D=3D 0))=
 {
>>>
>>> randolph
>>>
>>>
>>> Roel Kluin wrote:
>>>
>>>>
>>>> Fix misplaced parenthesis.
>>>>
>>>> Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
>>>> ---
>>>> I think this is what was intended? Note that this patch may affect
>>>> profiling.
>>>>
>>>> diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
>>>> index bbda909..30207b0 100644
>>>> --- a/arch/parisc/lib/memcpy.c
>>>> +++ b/arch/parisc/lib/memcpy.c
>>>> @@ -405,7 +405,7 @@ byte_copy:
>>>> =A0unaligned_copy:
>>>> =A0 =A0 =A0 /* possibly we are aligned on a word, but not on a dou=
ble... */
>>>> - =A0 =A0 =A0 if (likely(t1 & (sizeof(unsigned int)-1)) =3D=3D 0) =
{
>>>> + =A0 =A0 =A0 if (likely(t1 & (sizeof(unsigned int)-1) =3D=3D 0)) =
{
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 t2 =3D src & (sizeof(unsigned int) - 1=
);
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 if (unlikely(t2 !=3D 0)) {
>>>> --
>>>> To unsubscribe from this list: send the line "unsubscribe linux-pa=
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>>>
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From: Kyle McMartin <kyle@hera.kernel.org>
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Subject: what's in parisc-2.6.git
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commit mail seems to be broken again for some reason...

The following changes since commit d888a4c76c51092993643f8992bf55b3c28da483:
  Linus Torvalds (1):
        Merge branch 'for-linus' of git://git.kernel.org/.../vapier/blackfin

are available in the git repository at:

  /pub/scm/linux/kernel/git/kyle/parisc-2.6.git parisc

Alexander Beregalov (4):
      parisc: stifb: should depend on STI_CONSOLE
      parisc: ccio-dma: fix build failure without procfs
      parisc: remove CVS keywords
      parisc: decode_exc.c should include kernel.h

Bastian Blank (1):
      parisc: Remove casts from atomic macros

Christoph Hellwig (1):
      parisc: remove dead code from sys_parisc32.c

Coly Li (1):
      parisc: add parameter to read_cr16()

Grant Grundler (3):
      parisc: advertise PCI devs after "assign_resources"
      parisc: Fix gcc 4.4 warning in lba_pci.c
      parisc: fix "delay!" timer handling

Helge Deller (3):
      parisc: fix ldcw inline assembler
      parisc: fix irq compile bugs in arch/parisc/kernel/irq.c
      parisc: ensure broadcast tlb purge runs single threaded

Kyle McMartin (4):
      parisc: wire up preadv/pwritev syscalls
      parisc: kill WARN in free_initmem when DEBUG_KERNEL
      parisc: wire up rt_tgsigqueueinfo
      parisc: fix compile warning in mm/init.c

Randolph Chung (1):
      parisc: fix mismatched parenthesis in memcpy.c

Thomas Gleixner (1):
      parisc: remove obsolete hw_interrupt_type

 arch/parisc/include/asm/atomic.h   |    8 ++--
 arch/parisc/include/asm/dma.h      |    3 +-
 arch/parisc/include/asm/system.h   |    4 +-
 arch/parisc/include/asm/tlbflush.h |   14 +++---
 arch/parisc/include/asm/unistd.h   |    5 ++-
 arch/parisc/kernel/cache.c         |   26 ++++++----
 arch/parisc/kernel/irq.c           |   10 ++--
 arch/parisc/kernel/pci-dma.c       |   12 +++--
 arch/parisc/kernel/pci.c           |    3 +-
 arch/parisc/kernel/processor.c     |    3 +-
 arch/parisc/kernel/setup.c         |    3 +-
 arch/parisc/kernel/sys_parisc32.c  |   62 ------------------------
 arch/parisc/kernel/syscall_table.S |    3 +
 arch/parisc/kernel/time.c          |   90 +++++++++++++++++++++--------------
 arch/parisc/lib/checksum.c         |    2 -
 arch/parisc/lib/memcpy.c           |    2 +-
 arch/parisc/math-emu/decode_exc.c  |    2 +-
 arch/parisc/mm/fault.c             |    3 +-
 arch/parisc/mm/init.c              |   29 ++++--------
 drivers/parisc/ccio-dma.c          |    7 ++-
 drivers/parisc/dino.c              |   12 ++--
 drivers/parisc/eisa.c              |    2 +-
 drivers/parisc/gsc.c               |    4 +-
 drivers/parisc/gsc.h               |    2 +-
 drivers/parisc/iosapic.c           |    2 +-
 drivers/parisc/lba_pci.c           |   41 +++++++++++------
 drivers/parisc/superio.c           |    2 +-
 drivers/video/Kconfig              |    2 +
 28 files changed, 164 insertions(+), 194 deletions(-)
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From - Thu Nov 08 21:04:26 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: [PATCH 1/2] parisc: processor.c, fix bloated stack frame
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From: Kyle McMartin <kyle@shortfin.cabal.ca>

The pa_pdc_cell struct can be kmalloc'd, so do that instead.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
---
 arch/parisc/kernel/processor.c |   16 +++++++++++-----
 1 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 1ca69a8..c8fb61e 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -120,22 +120,28 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 	if (is_pdc_pat()) {
 		ulong status;
 		unsigned long bytecnt;
-	        pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
+	        pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;
 #undef USE_PAT_CPUID
 #ifdef USE_PAT_CPUID
 		struct pdc_pat_cpu_num cpu_info;
 #endif
 
+		pa_pdc_cell = kmalloc(sizeof (*pa_pdc_cell), GFP_KERNEL);
+		if (!pa_pdc_cell)
+			panic("couldn't allocate memory for PDC_PAT_CELL!");
+
 		status = pdc_pat_cell_module(&bytecnt, dev->pcell_loc,
-			dev->mod_index, PA_VIEW, &pa_pdc_cell);
+			dev->mod_index, PA_VIEW, pa_pdc_cell);
 
 		BUG_ON(PDC_OK != status);
 
 		/* verify it's the same as what do_pat_inventory() found */
-		BUG_ON(dev->mod_info != pa_pdc_cell.mod_info);
-		BUG_ON(dev->pmod_loc != pa_pdc_cell.mod_location);
+		BUG_ON(dev->mod_info != pa_pdc_cell->mod_info);
+		BUG_ON(dev->pmod_loc != pa_pdc_cell->mod_location);
+
+		txn_addr = pa_pdc_cell->mod[0];   /* id_eid for IO sapic */
 
-		txn_addr = pa_pdc_cell.mod[0];   /* id_eid for IO sapic */
+		kfree(pa_pdc_cell);
 
 #ifdef USE_PAT_CPUID
 /* We need contiguous numbers for cpuid. Firmware's notion
-- 
1.6.3.1

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Subject: [PATCH 2/2] parisc: inventory.c, fix bloated stack frame
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From: Kyle McMartin <kyle@shortfin.cabal.ca>

The pa_pdc_cell struct can be kmalloc'd, so do that
instead.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
---
 arch/parisc/kernel/inventory.c |   41 +++++++++++++++++++++++----------------
 1 files changed, 24 insertions(+), 17 deletions(-)

diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index bd1f7f1..bb3195b 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -170,23 +170,27 @@ static void __init pagezero_memconfig(void)
 static int __init 
 pat_query_module(ulong pcell_loc, ulong mod_index)
 {
-	pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
+	pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;
 	unsigned long bytecnt;
 	unsigned long temp;	/* 64-bit scratch value */
 	long status;		/* PDC return value status */
 	struct parisc_device *dev;
 
+	pa_pdc_cell = kmalloc(sizeof (*pa_pdc_cell), GFP_KERNEL);
+	if (!pa_pdc_cell)
+		panic("couldn't allocate memory for PDC_PAT_CELL!");
+
 	/* return cell module (PA or Processor view) */
 	status = pdc_pat_cell_module(&bytecnt, pcell_loc, mod_index,
-				     PA_VIEW, &pa_pdc_cell);
+				     PA_VIEW, pa_pdc_cell);
 
 	if (status != PDC_OK) {
 		/* no more cell modules or error */
 		return status;
 	}
 
-	temp = pa_pdc_cell.cba;
-	dev = alloc_pa_dev(PAT_GET_CBA(temp), &pa_pdc_cell.mod_path);
+	temp = pa_pdc_cell->cba;
+	dev = alloc_pa_dev(PAT_GET_CBA(temp), &(pa_pdc_cell->mod_path));
 	if (!dev) {
 		return PDC_OK;
 	}
@@ -203,8 +207,8 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 
 	/* save generic info returned from the call */
 	/* REVISIT: who is the consumer of this? not sure yet... */
-	dev->mod_info = pa_pdc_cell.mod_info;	/* pass to PAT_GET_ENTITY() */
-	dev->pmod_loc = pa_pdc_cell.mod_location;
+	dev->mod_info = pa_pdc_cell->mod_info;	/* pass to PAT_GET_ENTITY() */
+	dev->pmod_loc = pa_pdc_cell->mod_location;
 
 	register_parisc_device(dev);	/* advertise device */
 
@@ -216,14 +220,14 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 
 	case PAT_ENTITY_PROC:
 		printk(KERN_DEBUG "PAT_ENTITY_PROC: id_eid 0x%lx\n",
-			pa_pdc_cell.mod[0]);
+			pa_pdc_cell->mod[0]);
 		break;
 
 	case PAT_ENTITY_MEM:
 		printk(KERN_DEBUG 
 			"PAT_ENTITY_MEM: amount 0x%lx min_gni_base 0x%lx min_gni_len 0x%lx\n",
-			pa_pdc_cell.mod[0], pa_pdc_cell.mod[1], 
-			pa_pdc_cell.mod[2]);
+			pa_pdc_cell->mod[0], pa_pdc_cell->mod[1], 
+			pa_pdc_cell->mod[2]);
 		break;
 	case PAT_ENTITY_CA:
 		printk(KERN_DEBUG "PAT_ENTITY_CA: %ld\n", pcell_loc);
@@ -243,23 +247,26 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
  print_ranges:
 		pdc_pat_cell_module(&bytecnt, pcell_loc, mod_index,
 				    IO_VIEW, &io_pdc_cell);
-		printk(KERN_DEBUG "ranges %ld\n", pa_pdc_cell.mod[1]);
-		for (i = 0; i < pa_pdc_cell.mod[1]; i++) {
+		printk(KERN_DEBUG "ranges %ld\n", pa_pdc_cell->mod[1]);
+		for (i = 0; i < pa_pdc_cell->mod[1]; i++) {
 			printk(KERN_DEBUG 
 				"  PA_VIEW %ld: 0x%016lx 0x%016lx 0x%016lx\n", 
-				i, pa_pdc_cell.mod[2 + i * 3],	/* type */
-				pa_pdc_cell.mod[3 + i * 3],	/* start */
-				pa_pdc_cell.mod[4 + i * 3]);	/* finish (ie end) */
+				i, pa_pdc_cell->mod[2 + i * 3],	/* type */
+				pa_pdc_cell->mod[3 + i * 3],	/* start */
+				pa_pdc_cell->mod[4 + i * 3]);	/* finish (ie end) */
 			printk(KERN_DEBUG 
 				"  IO_VIEW %ld: 0x%016lx 0x%016lx 0x%016lx\n", 
-				i, io_pdc_cell.mod[2 + i * 3],	/* type */
-				io_pdc_cell.mod[3 + i * 3],	/* start */
-				io_pdc_cell.mod[4 + i * 3]);	/* finish (ie end) */
+				i, io_pdc_cell->mod[2 + i * 3],	/* type */
+				io_pdc_cell->mod[3 + i * 3],	/* start */
+				io_pdc_cell->mod[4 + i * 3]);	/* finish (ie end) */
 		}
 		printk(KERN_DEBUG "\n");
 		break;
 	}
 #endif /* DEBUG_PAT */
+
+	kfree(pa_pdc_cell);
+
 	return PDC_OK;
 }
 
-- 
1.6.3.1

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From: Kyle McMartin <kyle@hera.kernel.org>
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New commits:
commit d754f0124d47a7a3bed83d292cb8400be7d75397
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Tue Jun 23 13:11:22 2009 -0400

    parisc: inventory.c, fix bloated stack frame
    
    The pa_pdc_cell struct can be kmalloc'd, so do that
    instead.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 7c871d1ce0cf1713926171ef49dfe42f7fa4b1f0
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Tue Jun 23 13:10:03 2009 -0400

    parisc: processor.c, fix bloated stack frame
    
    The pa_pdc_cell struct can be kmalloc'd, so do that instead.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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> The following changes since commit d888a4c76c51092993643f8992bf55b3c28da483:
>   Linus Torvalds (1):
>         Merge branch 'for-linus' of git://git.kernel.org/.../vapier/blackfin
> 
> are available in the git repository at:

Thanks for bring this up to date.

What the status of the changes in the parisc-2.6.29 branch?  The sba_iommu
fix seems obvious.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Jun 23, 2009 at 08:29:20PM -0400, John David Anglin wrote:
> > The following changes since commit d888a4c76c51092993643f8992bf55b3c28da483:
> >   Linus Torvalds (1):
> >         Merge branch 'for-linus' of git://git.kernel.org/.../vapier/blackfin
> > 
> > are available in the git repository at:
> 
> Thanks for bring this up to date.
> 
> What the status of the changes in the parisc-2.6.29 branch?  The sba_iommu
> fix seems obvious.

I think those have all been merged already, except the sysvipc stuff,
but I haven't had the cycles to look into those recently. The two top
patches effecting sysvipc are bogus though and will break 'ipcs' and
various userspace bits.

regards, Kyle
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New commits:
commit dafba938247a83a3df0fb74f5b002199fb78a467
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Tue Jun 23 21:38:49 2009 -0400

    perf: wire up sys_perf_counter_open
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit b3808c0a514ff39298a1f1d17e45e0e224c47a95
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Tue Jun 23 21:32:18 2009 -0400

    parisc: add task_pt_regs macro
    
    needed for perf_counters.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 9a76595b135d99c3132403929f1a5ea0575c65c4
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Tue Jun 23 20:22:06 2009 -0400

    parisc: wire sys_perf_counter_open to sys_ni_syscall
    
    Reserves a syscall slot for it, until it gets a proper compat
    wrapper it's pretty useless though.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:04:27 2018
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Tue, Jun 23, 2009 at 07:39:37AM -0400, Carlos O'Donell wrote:
> On Tue, Jun 23, 2009 at 2:31 AM, Grant
...
> > allows me to build. Is no one else building with NFSROOT enabled?
> 
> I boot directly from disk on both my test machines (a500, c3k).

Me too in general...but I still have that enabled since the
Cupertino test ring have multiple machines and it's quite easy
to test with NFS root.

thanks,
grant
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> On Tue, Jun 23, 2009 at 07:39:37AM -0400, Carlos O'Donell wrote:
> > On Tue, Jun 23, 2009 at 2:31 AM, Grant
> ...
> > > allows me to build. Is no one else building with NFSROOT enabled?
> > 
> > I boot directly from disk on both my test machines (a500, c3k).
> 
> Me too in general...but I still have that enabled since the
> Cupertino test ring have multiple machines and it's quite easy
> to test with NFS root.

I'm using this for embedded development (no hard drive).

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:27 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: [PATCH] zalon: fix oops on attach failure
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I recently discovered on my zalon that if the attachment fails because
of a bus misconfiguration (I scrapped my HVD array, so the card is now
unterminated) then the system oopses.  The reason is that if
ncr_attach() returns NULL (signalling failure) that NULL is passed by
the goto failed straight into ncr_detach() which oopses.

The fix is just to return -ENODEV in this case.

James

---

diff --git a/drivers/scsi/zalon.c b/drivers/scsi/zalon.c
index 97f3158..27e84e4 100644
--- a/drivers/scsi/zalon.c
+++ b/drivers/scsi/zalon.c
@@ -134,7 +134,7 @@ zalon_probe(struct parisc_device *dev)
 
 	host = ncr_attach(&zalon7xx_template, unit, &device);
 	if (!host)
-		goto fail;
+		return -ENODEV;
 
 	if (request_irq(dev->irq, ncr53c8xx_intr, IRQF_SHARED, "zalon", host)) {
 	  dev_printk(KERN_ERR, &dev->dev, "irq problem with %d, detaching\n ",


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From - Thu Nov 08 21:04:27 2018
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From: Matthias Klose <doko@debian.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release,gmane.linux.debian.devel.gcc,gmane.linux.debian.ports.sparc,gmane.linux.debian.ports.mips
Subject: Re: HPPA and Squeeze
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To: Luk Claes <luk@debian.org>
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Luk Claes schrieb:
> Matthias Klose wrote:
>> Grant Grundler schrieb:
>>> On Fri, Jun 12, 2009 at 08:49:26AM +0200, Luk Claes wrote:
>>>> Grant Grundler wrote:
> 
>>>>> On Tue, Jun 02, 2009 at 03:07:35PM +0100, Neil McGovern wrote:
> 
>>>>>     http://lists.debian.org/debian-release/2009/04/msg00303.html
>>>> Note that it's wrong to assume we will come with the answers.
>>> I was expecting a summary of specific issues from an organization
>>> that claims to operate transperently.  The hand waving is easy. But
>>> doesn't resolve problems and doesn't meet my expectation of an "open"
>>> organization that I've donated money, time, and materials to.
>> +1. dropping hppa as a release architecture was not communicated by the release
>> team at all.  I did spend some time to get gcj / default-jdk working on hppa,
>> and some money (buying a new disk for a hppa machine) to help this port.  The
>> time and the money could have spent better, if d-r would have better
>> communicated about their intent.
> 
> There are issues with the hppa port where the release team considered
> dropping it since 2005 communicated to the porter list...
> 
>> hppa is not in a good shape, but there are other architectures which are not
>> better (sparc, mips*) from a toolchain point of view. what about these?
> 
> I'm not aware of current toolchain issues on sparc and the issues on
> mips* still seem to be manageable, no?

sparc-biarch defaulting to 32bit isn't supported by upstream; there are requests
to move to v9 optimization by default, which requires some work in the compiler.
I don't plan to update this for upcoming GCC versions, and there's no interest
by upstream to help with this kind of setup. You can't buy v8 software for years
now, but afaik all our machines run 64bit kernels. Maybe it's time to
acknowledge this, remove sparc from the list of release architectures and go on
with sparc64?

there are currently binutils issues outstanding, reported upstream. plus the
non-availability of developer machines seems to be an issue. Sadly we don't have
the mips support for squeeze as we had for lenny.

>> there are issues pointed out and not addressed like the -dev / -headers packages
>>  built as binary independent packages just to save disk space, which have an
>> impact on "slow" architectures, and which are not addressed by the release team.
>> would the release team mind addressing these real issues, or should we drop
>> "slow" architectures as well?
> 
> Well, this Packages issue is clearly a responsability from the FTP Team
> and the Release Team would indeed be very happy to have that resolved.

So it seems to be ok to ignore an issue, if you can work around it? Fine, then
I'll build all compiler front ends from one source again.

  Matthias

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From - Thu Nov 08 21:04:27 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH 1/2] parisc: processor.c, fix bloated stack frame
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On Tue, Jun 23, 2009 at 01:18:26PM -0400, Kyle McMartin wrote:
> From: Kyle McMartin <kyle@shortfin.cabal.ca>
> 
> The pa_pdc_cell struct can be kmalloc'd, so do that instead.
> 
> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
> ---
>  arch/parisc/kernel/processor.c |   16 +++++++++++-----
>  1 files changed, 11 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
> index 1ca69a8..c8fb61e 100644
> --- a/arch/parisc/kernel/processor.c
> +++ b/arch/parisc/kernel/processor.c
> @@ -120,22 +120,28 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
>  	if (is_pdc_pat()) {
>  		ulong status;
>  		unsigned long bytecnt;
> -	        pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
> +	        pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;
>  #undef USE_PAT_CPUID
>  #ifdef USE_PAT_CPUID
>  		struct pdc_pat_cpu_num cpu_info;
>  #endif
>  
> +		pa_pdc_cell = kmalloc(sizeof (*pa_pdc_cell), GFP_KERNEL);
> +		if (!pa_pdc_cell)
> +			panic("couldn't allocate memory for PDC_PAT_CELL!");

Even though we are never going to hit this panic, could this be coded
so processor_probe just fails for that PDC device?

ie printk and return 1 like some of the code right above it does.

I really dislike adding panic() calls if they are easy to avoid.

The rest looks fine to me.

thanks
grant

> +
>  		status = pdc_pat_cell_module(&bytecnt, dev->pcell_loc,
> -			dev->mod_index, PA_VIEW, &pa_pdc_cell);
> +			dev->mod_index, PA_VIEW, pa_pdc_cell);
>  
>  		BUG_ON(PDC_OK != status);
>  
>  		/* verify it's the same as what do_pat_inventory() found */
> -		BUG_ON(dev->mod_info != pa_pdc_cell.mod_info);
> -		BUG_ON(dev->pmod_loc != pa_pdc_cell.mod_location);
> +		BUG_ON(dev->mod_info != pa_pdc_cell->mod_info);
> +		BUG_ON(dev->pmod_loc != pa_pdc_cell->mod_location);
> +
> +		txn_addr = pa_pdc_cell->mod[0];   /* id_eid for IO sapic */
>  
> -		txn_addr = pa_pdc_cell.mod[0];   /* id_eid for IO sapic */
> +		kfree(pa_pdc_cell);
>  
>  #ifdef USE_PAT_CPUID
>  /* We need contiguous numbers for cpuid. Firmware's notion
> -- 
> 1.6.3.1
> 
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From - Thu Nov 08 21:04:27 2018
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From: Andrew Morton <akpm@linux-foundation.org>
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Subject: Re: [PATCH] misplaced parenthesis?
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On Tue, 23 Jun 2009 22:53:26 +0800
Randolph Chung <randolph@tausq.org> wrote:

> Here's an updated patch:
> 
> Reported-by: Roel Kluin <roel.kluin@gmail.com>
> Signed-off-by: Randolph Chung <tausq@parisc-linux.org>
> 
> diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
> index 2d68431..827e535 100644
> --- a/arch/parisc/lib/memcpy.c
> +++ b/arch/parisc/lib/memcpy.c
> @@ -405,7 +405,7 @@ byte_copy:
> 
>  unaligned_copy:
>         /* possibly we are aligned on a word, but not on a double... */
> -       if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
> +       if (likely((t1 & (sizeof(unsigned int)-1)) == 0)) {
>                 t2 = src & (sizeof(unsigned int) - 1);
> 
>                 if (unlikely(t2 != 0)) {
> 

I think I'll delete this email.  If someone has a patch which they
think should be applied, please resend it with a changelog.

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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [PATCH] misplaced parenthesis?
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To: Andrew Morton <akpm@linux-foundation.org>
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Kyle has merged this into the parisc tree.

thanks
randolph

Andrew Morton wrote:
> On Tue, 23 Jun 2009 22:53:26 +0800
> Randolph Chung <randolph@tausq.org> wrote:
>
>   
>> Here's an updated patch:
>>
>> Reported-by: Roel Kluin <roel.kluin@gmail.com>
>> Signed-off-by: Randolph Chung <tausq@parisc-linux.org>
>>
>> diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
>> index 2d68431..827e535 100644
>> --- a/arch/parisc/lib/memcpy.c
>> +++ b/arch/parisc/lib/memcpy.c
>> @@ -405,7 +405,7 @@ byte_copy:
>>
>>  unaligned_copy:
>>         /* possibly we are aligned on a word, but not on a double... */
>> -       if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
>> +       if (likely((t1 & (sizeof(unsigned int)-1)) == 0)) {
>>                 t2 = src & (sizeof(unsigned int) - 1);
>>
>>                 if (unlikely(t2 != 0)) {
>>
>>     
>
> I think I'll delete this email.  If someone has a patch which they
> think should be applied, please resend it with a changelog.
>
>   

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From: Alexander Beregalov <a.beregalov@gmail.com>
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Subject: 2.6.31-rc1: parisc: multiple PCI BAR collisions
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Hi

Hardware is HP j6000.
It cannot initialize many PCI devices (sym53c8xx, tulip, STI,
usb(onci)) and cannot boot (no root device).
Messages like this:
sym53c8xx 0:0:0f.0: device not available because of BAR 1 [0xf4005000
- 0xf40053ff] collisions.
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Subject: Re: 2.6.31-rc1: parisc: multiple PCI BAR collisions
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On Fri, 2009-06-26 at 12:58 +0400, Alexander Beregalov wrote:
> Hardware is HP j6000.
> It cannot initialize many PCI devices (sym53c8xx, tulip, STI,
> usb(onci)) and cannot boot (no root device).
> Messages like this:
> sym53c8xx 0:0:0f.0: device not available because of BAR 1 [0xf4005000
> - 0xf40053ff] collisions.

This tends to indicate a problem with resource parenting ... could you
post the full boot output?  That might indicate why.

James


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From: Jeroen Roovers <jer@gentoo.org>
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Subject: Re: 2.6.31-rc1: parisc: multiple PCI BAR collisions
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On Fri, 26 Jun 2009 14:37:40 +0000
James Bottomley <James.Bottomley@HansenPartnership.com> wrote:

> On Fri, 2009-06-26 at 12:58 +0400, Alexander Beregalov wrote:
> > Hardware is HP j6000.
> > It cannot initialize many PCI devices (sym53c8xx, tulip, STI,
> > usb(onci)) and cannot boot (no root device).
> > Messages like this:
> > sym53c8xx 0:0:0f.0: device not available because of BAR 1
> > [0xf4005000
> > - 0xf40053ff] collisions.
> 
> This tends to indicate a problem with resource parenting ... could you
> post the full boot output?  That might indicate why.

Here goes.


Kind regards,
     jer
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From - Thu Nov 08 21:04:27 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: 2.6.31-rc1: parisc: multiple PCI BAR collisions
Date: Fri, 26 Jun 2009 11:02:04 -0500
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To: Jeroen Roovers <jer@gentoo.org>
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On Fri, 2009-06-26 at 17:08 +0200, Jeroen Roovers wrote:
> On Fri, 26 Jun 2009 14:37:40 +0000
> James Bottomley <James.Bottomley@HansenPartnership.com> wrote:
> 
> > On Fri, 2009-06-26 at 12:58 +0400, Alexander Beregalov wrote:
> > > Hardware is HP j6000.
> > > It cannot initialize many PCI devices (sym53c8xx, tulip, STI,
> > > usb(onci)) and cannot boot (no root device).
> > > Messages like this:
> > > sym53c8xx 0:0:0f.0: device not available because of BAR 1
> > > [0xf4005000
> > > - 0xf40053ff] collisions.
> > 
> > This tends to indicate a problem with resource parenting ... could you
> > post the full boot output?  That might indicate why.
> 
> Here goes.

It looks like there's some sort of screw up in the LBA resource
allocation on 32 bits.  The slight problem with this is that I don't
have an LBA 32 bit system to debug this; I've only got a C360.

How recent is the failure? Could you bisect it back to the failing
commit?

Thanks,

James


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From - Thu Nov 08 21:04:27 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: 2.6.31-rc1: parisc: multiple PCI BAR collisions
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On Fri, Jun 26, 2009 at 12:58:22PM +0400, Alexander Beregalov wrote:
> Hi
> 
> Hardware is HP j6000.
> It cannot initialize many PCI devices (sym53c8xx, tulip, STI,
> usb(onci)) and cannot boot (no root device).
> Messages like this:
> sym53c8xx 0:0:0f.0: device not available because of BAR 1 [0xf4005000
> - 0xf40053ff] collisions.

Yup - I found that out yesterday too. Console output is here:
http://iou.parisc-linux.org/~grundler/console/j6000-2.6.30-parisc_2.6_parenting_failed-01
http://iou.parisc-linux.org/~grundler/console/j6000-2.6.30-parisc_2.6_parenting_failed-02

but in an IRC conversation it' clear I only dumped the "elmmio" and not
the regular "lmmio" resource request. Need to dump both.

I'm pretty sure this is a problem of the root bus resources not getting
setup correctly. I'm not clear on what's wrong. jejb and willy are looking
at it now as well.

thanks,
grant
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From - Thu Nov 08 21:04:27 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: 2.6.31-rc1: parisc: multiple PCI BAR collisions
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On Fri, Jun 26, 2009 at 11:03:04AM -0600, Grant Grundler wrote:
> On Fri, Jun 26, 2009 at 12:58:22PM +0400, Alexander Beregalov wrote:
> > Hi
> > 
> > Hardware is HP j6000.
> > It cannot initialize many PCI devices (sym53c8xx, tulip, STI,
> > usb(onci)) and cannot boot (no root device).
> > Messages like this:
> > sym53c8xx 0:0:0f.0: device not available because of BAR 1 [0xf4005000
> > - 0xf40053ff] collisions.
> 
> I'm pretty sure this is a problem of the root bus resources not getting
> setup correctly. I'm not clear on what's wrong. jejb and willy are looking
> at it now as well.

This patch fixes it for me.

----

Fix PCI resource allocation on non-PAT SBA machines

We weren't marking the resources as memory resources, so they weren't
being found by pci_claim_resource().

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Reviewed-by: Grant Grundler <grundler@parisc-linux.org>

diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index d46dd57..123d8fe 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -2057,6 +2057,7 @@ void sba_directed_lmmio(struct parisc_device *pci_hba, struct resource *r)
 		r->start = (base & ~1UL) | PCI_F_EXTEND;
 		size = ~ READ_REG32(reg + LMMIO_DIRECT0_MASK);
 		r->end = r->start + size;
+		r->flags = IORESOURCE_MEM;
 	}
 }
 
@@ -2093,4 +2094,5 @@ void sba_distributed_lmmio(struct parisc_device *pci_hba, struct resource *r )
 	size = (~READ_REG32(sba->sba_hpa + LMMIO_DIST_MASK)) / ROPES_PER_IOC;
 	r->start += rope * (size + 1);	/* adjust base for this rope */
 	r->end = r->start + size;
+	r->flags = IORESOURCE_MEM;
 }

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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From - Thu Nov 08 21:04:28 2018
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From: Kyle McMartin <kyle@hera.kernel.org>
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Subject: [git] parisc: Changes to ref refs/heads/parisc
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New commits:
commit d0a470c8ccae34b99de01fbb426d1334e383dc0d
Author: Matthew Wilcox <matthew@wil.cx>
Date:   Fri Jun 26 17:44:18 2009 +0000

    parisc: Fix PCI resource allocation on non-PAT SBA machines
    
    We weren't marking the resources as memory resources, so they weren't
    being found by pci_claim_resource().
    
    Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
    Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:04:28 2018
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Subject: Re: 2.6.31-rc1: parisc: multiple PCI BAR collisions
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Cc: Grant Grundler <grundler@parisc-linux.org>,
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To: Matthew Wilcox <matthew@wil.cx>
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On Fri, Jun 26, 2009 at 11:44:18AM -0600, Matthew Wilcox wrote:
> > > Hardware is HP j6000.
> > > It cannot initialize many PCI devices (sym53c8xx, tulip, STI,
> > > usb(onci)) and cannot boot (no root device).
> > > Messages like this:
> > > sym53c8xx 0:0:0f.0: device not available because of BAR 1 [0xf4005000
> > > - 0xf40053ff] collisions.
> > 
> > I'm pretty sure this is a problem of the root bus resources not getting
> > setup correctly. I'm not clear on what's wrong. jejb and willy are looking
> > at it now as well.
> 
> This patch fixes it for me.
> 

obviously correct, applied and pushed out.

thanks, kyle
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New commits:
commit 89ff26af79bd7ba93e5d98aa194527e55839e64a
Author: Alexander Beregalov <a.beregalov@gmail.com>
Date:   Thu Apr 16 14:45:59 2009 +0000

    parisc: superio: fix build breakage
    
    Usage of parport_pc_probe_port was changed in 28783eb52
    (parport: Fix various uses of parport_pc).
    
    It introduced this build error:
    drivers/parisc/superio.c: In function 'superio_parport_init':
    drivers/parisc/superio.c:437: error: too few arguments to function
    				'parport_pc_probe_port'
    
    Fix it.
    
    Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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New commits:
commit 0517fbf0368b173814ca6c2a260abbb83754d09d
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Thu Jul 2 13:10:29 2009 -0400

    parisc: use generic atomic64 on 32-bit
    
    Somewhat redundant since our atomic_t uses hashed-locks on 32-bit
    anyway... Maybe we can clean those up to be generic too someday.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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Rebased ref, commits from common ancestor:
commit a1a05b2c74e95132143d10fa2282982076f1b6da
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Mon Apr 27 00:51:13 2009 -0400

    parisc: TIF_NOTIFY_RESUME
    
    Not-yet-signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 69ec70ca574565ec6423684bcebc9c543b6eacbc
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Mon Apr 27 00:29:53 2009 -0400

    parisc: tracehook_signal_handler
    
    This makes parisc call the standard tracehook_signal_handler hook
    in <linux/tracehook.h> after setting up a signal handler.
    
    Not-yet-signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 9b1332c0151b50526980891d96fe9dec09b5aaaf
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Apr 26 23:53:34 2009 -0400

    parisc: tracehook_report_syscall
    
    This makes parisc use the standard tracehook_report_syscall_entry
    and tracehook_report_syscall_exit hooks in <linux/tracehook.h>.
    
    To do this, we need to access current->thread.regs, and to know
    whether we're entering or exiting the syscall, so add this to
    syscall_trace.
    
    Not-yet-signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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Hi Linus,

Sorry these got delayed passed -rc1, but we were tracking down a few
last minute bugs, and I wanted it to get some testing across a bunch of
different hardware. (The only reason for the new commit timestamps is I
rewrote a few of the commit messages, the patch contents are unchanged
from what's been in the parisc branch for a few weeks now.)

parisc-folks: the 'parisc' branch will get rebased after the merge, so
you'll have to manually update your local branches that follow it.

Thanks, Kyle

The following changes since commit d888a4c76c51092993643f8992bf55b3c28da483:
  Linus Torvalds (1):
        Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin

are available in the git repository at:

  hera.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git for-linus

Alexander Beregalov (5):
      parisc: stifb: should depend on STI_CONSOLE
      parisc: ccio-dma: fix build failure without procfs
      parisc: remove CVS keywords
      parisc: decode_exc.c should include kernel.h
      parisc: superio: fix build breakage

Bastian Blank (1):
      parisc: Remove casts from atomic macros

Christoph Hellwig (1):
      parisc: remove dead code from sys_parisc32.c

Coly Li (1):
      parisc: add parameter to read_cr16()

Grant Grundler (3):
      parisc: advertise PCI devs after "assign_resources"
      parisc: Fix gcc 4.4 warning in lba_pci.c
      parisc: fix "delay!" timer handling

Helge Deller (3):
      parisc: fix ldcw inline assembler
      parisc: fix irq compile bugs in arch/parisc/kernel/irq.c
      parisc: ensure broadcast tlb purge runs single threaded

Kyle McMartin (10):
      parisc: wire up preadv/pwritev syscalls
      parisc: kill WARN in free_initmem when DEBUG_KERNEL
      parisc: wire up rt_tgsigqueueinfo
      parisc: fix compile warning in mm/init.c
      parisc: processor.c, fix bloated stack frame
      parisc: inventory.c, fix bloated stack frame
      parisc: wire sys_perf_counter_open to sys_ni_syscall
      parisc: add task_pt_regs macro
      parisc: perf: wire up sys_perf_counter_open
      parisc: use generic atomic64 on 32-bit

Matthew Wilcox (1):
      parisc: Fix PCI resource allocation on non-PAT SBA machines

Randolph Chung (1):
      parisc: fix mismatched parenthesis in memcpy.c

Thomas Gleixner (1):
      parisc: remove obsolete hw_interrupt_type

 arch/parisc/Kconfig                    |    2 +
 arch/parisc/include/asm/atomic.h       |   14 +++--
 arch/parisc/include/asm/dma.h          |    3 +-
 arch/parisc/include/asm/perf_counter.h |    7 +++
 arch/parisc/include/asm/processor.h    |    3 +
 arch/parisc/include/asm/system.h       |    4 +-
 arch/parisc/include/asm/tlbflush.h     |   14 +++---
 arch/parisc/include/asm/unistd.h       |    6 ++-
 arch/parisc/kernel/cache.c             |   26 ++++++----
 arch/parisc/kernel/inventory.c         |   41 +++++++++------
 arch/parisc/kernel/irq.c               |   10 ++--
 arch/parisc/kernel/pci-dma.c           |   12 +++--
 arch/parisc/kernel/pci.c               |    3 +-
 arch/parisc/kernel/processor.c         |   19 ++++---
 arch/parisc/kernel/setup.c             |    3 +-
 arch/parisc/kernel/sys_parisc32.c      |   62 ----------------------
 arch/parisc/kernel/syscall_table.S     |    4 ++
 arch/parisc/kernel/time.c              |   90 +++++++++++++++++++-------------
 arch/parisc/lib/checksum.c             |    2 -
 arch/parisc/lib/memcpy.c               |    2 +-
 arch/parisc/math-emu/decode_exc.c      |    2 +-
 arch/parisc/mm/fault.c                 |    3 +-
 arch/parisc/mm/init.c                  |   29 +++-------
 drivers/parisc/ccio-dma.c              |    7 ++-
 drivers/parisc/dino.c                  |   12 ++--
 drivers/parisc/eisa.c                  |    2 +-
 drivers/parisc/gsc.c                   |    4 +-
 drivers/parisc/gsc.h                   |    2 +-
 drivers/parisc/iosapic.c               |    2 +-
 drivers/parisc/lba_pci.c               |   41 ++++++++++-----
 drivers/parisc/sba_iommu.c             |    2 +
 drivers/parisc/superio.c               |    6 +-
 drivers/video/Kconfig                  |    2 +
 tools/perf/perf.h                      |    6 ++
 34 files changed, 228 insertions(+), 219 deletions(-)
 create mode 100644 arch/parisc/include/asm/perf_counter.h
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From - Thu Nov 08 21:04:28 2018
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Newsgroups: gmane.linux.debian.devel.release,gmane.linux.debian.ports.hppa,gmane.linux.ports.parisc
Subject: Re: HPPA and Squeeze
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On Fri, Jun 19, 2009 at 05:43:24PM +0200, Philipp Kern wrote:
> On Fri, Jun 19, 2009 at 05:15:26PM +0200, Kurt Roeckx wrote:
> > Here is a list of packages that failed to build because of instability
> > on the buildds today:
> > package     | buildd   | error
> > qgit        | penalosa | make: *** [install] Segmentation fault
> > acpica-unix | peri     | make: *** [install] Segmentation fault
> 
> I had those random segfaults in make on paer too, until we switched to the
> UP kernel, at least from what I saw.

Did something change to peri?  I'm currently only seeing them on
penalosa.

Failed logs the past few days:
Jun 22 | wesnoth                | penalosa | quilt segfaults
Jun 22 | gitg                   | penalosa | quilt segfaults
Jun 23 | zita-convolver         | penalosa | quilt segfaults
Jun 25 | autodocksuite          | penalosa | make segfaults
Jun 26 | mpd                    | penalosa | find segfaults?
Jun 30 | scorched3d             | penalosa | make segfaults
Jun 30 | libtext-bibtex-perl    | penalosa | make segfaults
Jun 30 | gnome-chemistry-utils  | penalosa | libtool segfaults
Jul 01 | openmsx-catapult       | penalosa | make segfaults
Jul 01 | prima                  | penalosa | make segfaults
Jul 01 | fvwm                   | penalosa | gcc says as had a segfault
Jul 01 | cherokee               | penalosa | quilt segfaults
Jul 03 | vflib3		        | penalosa | make segfaults
Jul 03 | rpy2		        | penalosa | make segfaults
Jul 03 | debian-installer-utils | penalosa | make segfaults

On other that looks weird is, all also on penalosa:
- scid, seems to have been stuck in a "cp".
- postgresql-8.3, not sure what the error is
- building gnome-system-monitor, openssh-client failed to install
  in it's postinst script calling update-alternatives

And then there is glob2 that fails with:
/usr/bin/ld: libgag/src/libgag.a(FileManager.o)(.text+0x2fc8): cannot reach 0000f9bf_memcpy@@GLIBC_2.2+0, recompile with -ffunction-sections
/usr/bin/ld: libgag/src/libgag.a(FileManager.o)(.text+0x2fc8): cannot handle R_PARISC_PCREL17F for memcpy@@GLIBC_2.2
/usr/bin/ld: final link failed: Bad value
collect2: ld returned 1 exit status


Kurt



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On Fri, Jul 03, 2009 at 08:57:56PM +0200, Kurt Roeckx wrote:
> Did something change to peri?  I'm currently only seeing them on
> penalosa.

UP kernel, maybe?

Kind regards,
Philipp Kern
--=20
 .''`.  Philipp Kern                        Debian Developer
: :' :  http://philkern.de                         Stable Release Manager
`. `'   xmpp:phil@0x539.de                         Wanna-Build Admin
  `-    finger pkern/key@db.debian.org

--k+w/mQv8wyuph6w0
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-----BEGIN PGP SIGNATURE-----
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From - Thu Nov 08 21:04:29 2018
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From: Kurt Roeckx <kurt@roeckx.be>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
Subject: Re: HPPA and Squeeze
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On Fri, Jul 03, 2009 at 09:28:00PM +0200, Philipp Kern wrote:
> On Fri, Jul 03, 2009 at 08:57:56PM +0200, Kurt Roeckx wrote:
> > Did something change to peri?  I'm currently only seeing them on
> > penalosa.
> 
> UP kernel, maybe?

Both peri and penalosa run 2.6.29-2-parisc64-smp and from what I
can tell run on identical hardware.


Kurt

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From - Thu Nov 08 21:04:29 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
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> And then there is glob2 that fails with:
> /usr/bin/ld: libgag/src/libgag.a(FileManager.o)(.text+0x2fc8): cannot reach 0000f9bf_memcpy@@GLIBC_2.2+0, recompile with -ffunction-sections
> /usr/bin/ld: libgag/src/libgag.a(FileManager.o)(.text+0x2fc8): cannot handle R_PARISC_PCREL17F for memcpy@@GLIBC_2.2
> /usr/bin/ld: final link failed: Bad value
> collect2: ld returned 1 exit status

I couldn't duplicate the problem with binutils 2.19.1-1 and gcc-4.3
4.3.3-10, or with my own binutils build on two different systems.

The above shouldn't happen as the text size of FileManager.o is well below
the size where a 17-bit branch can't reach the stub table.  Possibly, the
stub table is full.  On the otherhand, the "0000f9bf_memcpy@@GLIBC_2.2+0"
string looks garbled.  So, this may be another form of the SMP memory
corruption that causes the segvs, particularly if it isn't reproducible
on the build system.

The suggestion to "recompile with -ffunction-sections" is somewhat
misleading.  While -ffunction-sections may help sometimes, in other
cases it may be necessary to play with the ld --stub-group-size=N
option, or to compile with -mlong-calls.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:29 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Collected parisc patches for 2.6.30.1
Date: Sat, 4 Jul 2009 16:05:28 -0400 (EDT)
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I've collected a bunch of parisc bug fixes and other changes that
apply against 2.6.30.1.  Sorry about the loss of attribution.

I really wish we had a set of stable git trees (e.g., parisc-2.6.30.y)
against which safe parisc changes are applied.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index ada3e53..7d5ebf1 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -222,13 +222,13 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
 
-#define atomic_add(i,v)	((void)(__atomic_add_return( ((int)(i)),(v))))
-#define atomic_sub(i,v)	((void)(__atomic_add_return(-((int)(i)),(v))))
+#define atomic_add(i,v)	((void)(__atomic_add_return( (i),(v))))
+#define atomic_sub(i,v)	((void)(__atomic_add_return(-(i),(v))))
 #define atomic_inc(v)	((void)(__atomic_add_return(   1,(v))))
 #define atomic_dec(v)	((void)(__atomic_add_return(  -1,(v))))
 
-#define atomic_add_return(i,v)	(__atomic_add_return( ((int)(i)),(v)))
-#define atomic_sub_return(i,v)	(__atomic_add_return(-((int)(i)),(v)))
+#define atomic_add_return(i,v)	(__atomic_add_return( (i),(v)))
+#define atomic_sub_return(i,v)	(__atomic_add_return(-(i),(v)))
 #define atomic_inc_return(v)	(__atomic_add_return(   1,(v)))
 #define atomic_dec_return(v)	(__atomic_add_return(  -1,(v)))
 
diff --git a/arch/parisc/include/asm/dma.h b/arch/parisc/include/asm/dma.h
index 31ad0f0..f7a18f9 100644
--- a/arch/parisc/include/asm/dma.h
+++ b/arch/parisc/include/asm/dma.h
@@ -1,5 +1,4 @@
-/* $Id: dma.h,v 1.2 1999/04/27 00:46:18 deller Exp $
- * linux/include/asm/dma.h: Defines for using and allocating dma channels.
+/* asm/dma.h: Defines for using and allocating dma channels.
  * Written by Hennus Bergman, 1992.
  * High DMA channel support & info by Hannu Savolainen
  * and John Boyd, Nov. 1992.
diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
index ee80c92..d91357b 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -168,8 +168,8 @@ static inline void set_eiem(unsigned long val)
 /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
 #define __ldcw(a) ({						\
 	unsigned __ret;						\
-	__asm__ __volatile__(__LDCW " 0(%1),%0"			\
-		: "=r" (__ret) : "r" (a));			\
+	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
+		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
 	__ret;							\
 })
 
diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index 1f6fd4f..217588e 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -18,8 +18,8 @@
  */
 extern spinlock_t pa_tlb_lock;
 
-#define purge_tlb_start(x) spin_lock(&pa_tlb_lock)
-#define purge_tlb_end(x) spin_unlock(&pa_tlb_lock)
+#define purge_tlb_start(flags)	spin_lock_irqsave(&pa_tlb_lock, flags)
+#define purge_tlb_end(flags)	spin_unlock_irqrestore(&pa_tlb_lock, flags)
 
 extern void flush_tlb_all(void);
 extern void flush_tlb_all_local(void *);
@@ -64,13 +64,14 @@ static inline void flush_tlb_page(struct vm_area_struct *vma,
 	unsigned long addr)
 {
 	/* For one page, it's not worth testing the split_tlb variable */
+	unsigned long flags;
 
 	mb();
 	mtsp(vma->vm_mm->context,1);
-	purge_tlb_start();
+	purge_tlb_start(flags);
 	pdtlb(addr);
 	pitlb(addr);
-	purge_tlb_end();
+	purge_tlb_end(flags);
 }
 
 void __flush_tlb_range(unsigned long sid,
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index ef26b00..a3c3419 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -807,8 +807,10 @@
 #define __NR_dup3		(__NR_Linux + 312)
 #define __NR_pipe2		(__NR_Linux + 313)
 #define __NR_inotify_init1	(__NR_Linux + 314)
+#define __NR_preadv		(__NR_Linux + 315)
+#define __NR_pwritev		(__NR_Linux + 316)
 
-#define __NR_Linux_syscalls	(__NR_inotify_init1 + 1)
+#define __NR_Linux_syscalls	(__NR_pwritev + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 837530e..57b3908 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -1,5 +1,4 @@
-/* $Id: cache.c,v 1.4 2000/01/25 00:11:38 prumpf Exp $
- *
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
@@ -400,10 +399,11 @@ void clear_user_page_asm(void *page, unsigned long vaddr)
 {
 	/* This function is implemented in assembly in pacache.S */
 	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
+	unsigned long flags;
 
-	purge_tlb_start();
+	purge_tlb_start(flags);
 	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end();
+	purge_tlb_end(flags);
 }
 
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
@@ -444,20 +444,22 @@ extern void clear_user_page_asm(void *page, unsigned long vaddr);
 
 void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 {
+	unsigned long flags;
 	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start();
+	purge_tlb_start(flags);
 	pdtlb_kernel(page);
-	purge_tlb_end();
+	purge_tlb_end(flags);
 	clear_user_page_asm(page, vaddr);
 }
 EXPORT_SYMBOL(clear_user_page);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
+	unsigned long flags;
 	flush_kernel_dcache_page_asm(addr);
-	purge_tlb_start();
+	purge_tlb_start(flags);
 	pdtlb_kernel(addr);
-	purge_tlb_end();
+	purge_tlb_end(flags);
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
@@ -490,8 +492,9 @@ void __flush_tlb_range(unsigned long sid, unsigned long start,
 	if (npages >= 512)  /* 2MB of space: arbitrary, should be tuned */
 		flush_tlb_all();
 	else {
+		unsigned long flags;
 		mtsp(sid, 1);
-		purge_tlb_start();
+		purge_tlb_start(flags);
 		if (split_tlb) {
 			while (npages--) {
 				pdtlb(start);
@@ -504,7 +507,7 @@ void __flush_tlb_range(unsigned long sid, unsigned long start,
 				start += PAGE_SIZE;
 			}
 		}
-		purge_tlb_end();
+		purge_tlb_end(flags);
 	}
 }
 
diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index bd1f7f1..bb3195b 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -170,23 +170,27 @@ static void __init pagezero_memconfig(void)
 static int __init 
 pat_query_module(ulong pcell_loc, ulong mod_index)
 {
-	pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
+	pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;
 	unsigned long bytecnt;
 	unsigned long temp;	/* 64-bit scratch value */
 	long status;		/* PDC return value status */
 	struct parisc_device *dev;
 
+	pa_pdc_cell = kmalloc(sizeof (*pa_pdc_cell), GFP_KERNEL);
+	if (!pa_pdc_cell)
+		panic("couldn't allocate memory for PDC_PAT_CELL!");
+
 	/* return cell module (PA or Processor view) */
 	status = pdc_pat_cell_module(&bytecnt, pcell_loc, mod_index,
-				     PA_VIEW, &pa_pdc_cell);
+				     PA_VIEW, pa_pdc_cell);
 
 	if (status != PDC_OK) {
 		/* no more cell modules or error */
 		return status;
 	}
 
-	temp = pa_pdc_cell.cba;
-	dev = alloc_pa_dev(PAT_GET_CBA(temp), &pa_pdc_cell.mod_path);
+	temp = pa_pdc_cell->cba;
+	dev = alloc_pa_dev(PAT_GET_CBA(temp), &(pa_pdc_cell->mod_path));
 	if (!dev) {
 		return PDC_OK;
 	}
@@ -203,8 +207,8 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 
 	/* save generic info returned from the call */
 	/* REVISIT: who is the consumer of this? not sure yet... */
-	dev->mod_info = pa_pdc_cell.mod_info;	/* pass to PAT_GET_ENTITY() */
-	dev->pmod_loc = pa_pdc_cell.mod_location;
+	dev->mod_info = pa_pdc_cell->mod_info;	/* pass to PAT_GET_ENTITY() */
+	dev->pmod_loc = pa_pdc_cell->mod_location;
 
 	register_parisc_device(dev);	/* advertise device */
 
@@ -216,14 +220,14 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 
 	case PAT_ENTITY_PROC:
 		printk(KERN_DEBUG "PAT_ENTITY_PROC: id_eid 0x%lx\n",
-			pa_pdc_cell.mod[0]);
+			pa_pdc_cell->mod[0]);
 		break;
 
 	case PAT_ENTITY_MEM:
 		printk(KERN_DEBUG 
 			"PAT_ENTITY_MEM: amount 0x%lx min_gni_base 0x%lx min_gni_len 0x%lx\n",
-			pa_pdc_cell.mod[0], pa_pdc_cell.mod[1], 
-			pa_pdc_cell.mod[2]);
+			pa_pdc_cell->mod[0], pa_pdc_cell->mod[1], 
+			pa_pdc_cell->mod[2]);
 		break;
 	case PAT_ENTITY_CA:
 		printk(KERN_DEBUG "PAT_ENTITY_CA: %ld\n", pcell_loc);
@@ -243,23 +247,26 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
  print_ranges:
 		pdc_pat_cell_module(&bytecnt, pcell_loc, mod_index,
 				    IO_VIEW, &io_pdc_cell);
-		printk(KERN_DEBUG "ranges %ld\n", pa_pdc_cell.mod[1]);
-		for (i = 0; i < pa_pdc_cell.mod[1]; i++) {
+		printk(KERN_DEBUG "ranges %ld\n", pa_pdc_cell->mod[1]);
+		for (i = 0; i < pa_pdc_cell->mod[1]; i++) {
 			printk(KERN_DEBUG 
 				"  PA_VIEW %ld: 0x%016lx 0x%016lx 0x%016lx\n", 
-				i, pa_pdc_cell.mod[2 + i * 3],	/* type */
-				pa_pdc_cell.mod[3 + i * 3],	/* start */
-				pa_pdc_cell.mod[4 + i * 3]);	/* finish (ie end) */
+				i, pa_pdc_cell->mod[2 + i * 3],	/* type */
+				pa_pdc_cell->mod[3 + i * 3],	/* start */
+				pa_pdc_cell->mod[4 + i * 3]);	/* finish (ie end) */
 			printk(KERN_DEBUG 
 				"  IO_VIEW %ld: 0x%016lx 0x%016lx 0x%016lx\n", 
-				i, io_pdc_cell.mod[2 + i * 3],	/* type */
-				io_pdc_cell.mod[3 + i * 3],	/* start */
-				io_pdc_cell.mod[4 + i * 3]);	/* finish (ie end) */
+				i, io_pdc_cell->mod[2 + i * 3],	/* type */
+				io_pdc_cell->mod[3 + i * 3],	/* start */
+				io_pdc_cell->mod[4 + i * 3]);	/* finish (ie end) */
 		}
 		printk(KERN_DEBUG "\n");
 		break;
 	}
 #endif /* DEBUG_PAT */
+
+	kfree(pa_pdc_cell);
+
 	return PDC_OK;
 }
 
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 4ea4229..5dc6cc1 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -120,7 +120,7 @@ int cpu_check_affinity(unsigned int irq, const struct cpumask *dest)
 	if (CHECK_IRQ_PER_CPU(irq)) {
 		/* Bad linux design decision.  The mask has already
 		 * been set; we must reset it */
-		cpumask_setall(&irq_desc[irq].affinity);
+		cpumask_setall(irq_desc[irq].affinity);
 		return -EINVAL;
 	}
 
@@ -138,11 +138,11 @@ static void cpu_set_affinity_irq(unsigned int irq, const struct cpumask *dest)
 	if (cpu_dest < 0)
 		return;
 
-	cpumask_copy(&irq_desc[irq].affinity, dest);
+	cpumask_copy(irq_desc[irq].affinity, dest);
 }
 #endif
 
-static struct hw_interrupt_type cpu_interrupt_type = {
+static struct irq_chip cpu_interrupt_type = {
 	.typename	= "CPU",
 	.startup	= cpu_startup_irq,
 	.shutdown	= cpu_disable_irq,
@@ -297,7 +297,7 @@ int txn_alloc_irq(unsigned int bits_wide)
 unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 {
 #ifdef CONFIG_SMP
-	cpumask_copy(&irq_desc[irq].affinity, cpumask_of(cpu));
+	cpumask_copy(irq_desc[irq].affinity, cpumask_of(cpu));
 #endif
 
 	return per_cpu(cpu_data, cpu).txn_addr;
@@ -354,7 +354,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	irq = eirr_to_irq(eirr_val);
 
 #ifdef CONFIG_SMP
-	cpumask_copy(&dest, &irq_desc[irq].affinity);
+	cpumask_copy(&dest, irq_desc[irq].affinity);
 	if (CHECK_IRQ_PER_CPU(irq_desc[irq].status) &&
 	    !cpu_isset(smp_processor_id(), dest)) {
 		int cpu = first_cpu(dest);
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 7d927ea..b8ec5a0 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -90,12 +90,13 @@ static inline int map_pte_uncached(pte_t * pte,
 	if (end > PMD_SIZE)
 		end = PMD_SIZE;
 	do {
+		unsigned long flags;
 		if (!pte_none(*pte))
 			printk(KERN_ERR "map_pte_uncached: page already exists\n");
 		set_pte(pte, __mk_pte(*paddr_ptr, PAGE_KERNEL_UNC));
-		purge_tlb_start();
+		purge_tlb_start(flags);
 		pdtlb_kernel(orig_vaddr);
-		purge_tlb_end();
+		purge_tlb_end(flags);
 		vaddr += PAGE_SIZE;
 		orig_vaddr += PAGE_SIZE;
 		(*paddr_ptr) += PAGE_SIZE;
@@ -168,11 +169,12 @@ static inline void unmap_uncached_pte(pmd_t * pmd, unsigned long vaddr,
 	if (end > PMD_SIZE)
 		end = PMD_SIZE;
 	do {
+		unsigned long flags;
 		pte_t page = *pte;
 		pte_clear(&init_mm, vaddr, pte);
-		purge_tlb_start();
+		purge_tlb_start(flags);
 		pdtlb_kernel(orig_vaddr);
-		purge_tlb_end();
+		purge_tlb_end(flags);
 		vaddr += PAGE_SIZE;
 		orig_vaddr += PAGE_SIZE;
 		pte++;
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 6936386..f7064ab 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -1,5 +1,4 @@
-/* $Id: pci.c,v 1.6 2000/01/29 00:12:05 grundler Exp $
- *
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index e09d0f7..c8fb61e 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -1,5 +1,4 @@
-/*    $Id: processor.c,v 1.1 2002/07/20 16:27:06 rhirst Exp $
- *
+/*
  *    Initial setup-routines for HP 9000 based hardware.
  *
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
@@ -121,22 +120,28 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 	if (is_pdc_pat()) {
 		ulong status;
 		unsigned long bytecnt;
-	        pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
+	        pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;
 #undef USE_PAT_CPUID
 #ifdef USE_PAT_CPUID
 		struct pdc_pat_cpu_num cpu_info;
 #endif
 
+		pa_pdc_cell = kmalloc(sizeof (*pa_pdc_cell), GFP_KERNEL);
+		if (!pa_pdc_cell)
+			panic("couldn't allocate memory for PDC_PAT_CELL!");
+
 		status = pdc_pat_cell_module(&bytecnt, dev->pcell_loc,
-			dev->mod_index, PA_VIEW, &pa_pdc_cell);
+			dev->mod_index, PA_VIEW, pa_pdc_cell);
 
 		BUG_ON(PDC_OK != status);
 
 		/* verify it's the same as what do_pat_inventory() found */
-		BUG_ON(dev->mod_info != pa_pdc_cell.mod_info);
-		BUG_ON(dev->pmod_loc != pa_pdc_cell.mod_location);
+		BUG_ON(dev->mod_info != pa_pdc_cell->mod_info);
+		BUG_ON(dev->pmod_loc != pa_pdc_cell->mod_location);
+
+		txn_addr = pa_pdc_cell->mod[0];   /* id_eid for IO sapic */
 
-		txn_addr = pa_pdc_cell.mod[0];   /* id_eid for IO sapic */
+		kfree(pa_pdc_cell);
 
 #ifdef USE_PAT_CPUID
 /* We need contiguous numbers for cpuid. Firmware's notion
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 82131ca..cb71f3d 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -1,5 +1,4 @@
-/*    $Id: setup.c,v 1.8 2000/02/02 04:42:38 prumpf Exp $
- *
+/*
  *    Initial setup-routines for HP 9000 based hardware.
  *
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 0838155..7488cfd 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -179,68 +179,6 @@ asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
 	return ret;
 }
 
-/*** copied from mips64 ***/
-/*
- * Ooo, nasty.  We need here to frob 32-bit unsigned longs to
- * 64-bit unsigned longs.
- */
-
-static inline int
-get_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
-{
-	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
-	if (ufdset) {
-		unsigned long odd;
-
-		if (!access_ok(VERIFY_WRITE, ufdset, n*sizeof(u32)))
-			return -EFAULT;
-
-		odd = n & 1UL;
-		n &= ~1UL;
-		while (n) {
-			unsigned long h, l;
-			__get_user(l, ufdset);
-			__get_user(h, ufdset+1);
-			ufdset += 2;
-			*fdset++ = h << 32 | l;
-			n -= 2;
-		}
-		if (odd)
-			__get_user(*fdset, ufdset);
-	} else {
-		/* Tricky, must clear full unsigned long in the
-		 * kernel fdset at the end, this makes sure that
-		 * actually happens.
-		 */
-		memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
-	}
-	return 0;
-}
-
-static inline void
-set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
-{
-	unsigned long odd;
-	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
-
-	if (!ufdset)
-		return;
-
-	odd = n & 1UL;
-	n &= ~1UL;
-	while (n) {
-		unsigned long h, l;
-		l = *fdset++;
-		h = l >> 32;
-		__put_user(l, ufdset);
-		__put_user(h, ufdset+1);
-		ufdset += 2;
-		n -= 2;
-	}
-	if (odd)
-		__put_user(*fdset, ufdset);
-}
-
 struct msgbuf32 {
     int mtype;
     char mtext[1];
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 03b9a01..6a62961 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -413,6 +413,8 @@
 	ENTRY_SAME(dup3)
 	ENTRY_SAME(pipe2)
 	ENTRY_SAME(inotify_init1)
+	ENTRY_COMP(preadv)
+	ENTRY_COMP(pwritev)
 
 	/* Nothing yet */
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index d4dd056..a79c6f9 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -56,9 +56,9 @@ static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
  */
 irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 {
-	unsigned long now;
+	unsigned long now, now2;
 	unsigned long next_tick;
-	unsigned long cycles_elapsed, ticks_elapsed;
+	unsigned long cycles_elapsed, ticks_elapsed = 1;
 	unsigned long cycles_remainder;
 	unsigned int cpu = smp_processor_id();
 	struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
@@ -71,44 +71,24 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 	/* Initialize next_tick to the expected tick time. */
 	next_tick = cpuinfo->it_value;
 
-	/* Get current interval timer.
-	 * CR16 reads as 64 bits in CPU wide mode.
-	 * CR16 reads as 32 bits in CPU narrow mode.
-	 */
+	/* Get current cycle counter (Control Register 16). */
 	now = mfctl(16);
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 5) < cpt) {
+	if ((cycles_elapsed >> 6) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
 		cycles_remainder = cycles_elapsed;
-		ticks_elapsed = 1;
 		while (cycles_remainder > cpt) {
 			cycles_remainder -= cpt;
 			ticks_elapsed++;
 		}
 	} else {
+		/* TODO: Reduce this to one fdiv op */
 		cycles_remainder = cycles_elapsed % cpt;
-		ticks_elapsed = 1 + cycles_elapsed / cpt;
-	}
-
-	/* Can we differentiate between "early CR16" (aka Scenario 1) and
-	 * "long delay" (aka Scenario 3)? I don't think so.
-	 *
-	 * We expected timer_interrupt to be delivered at least a few hundred
-	 * cycles after the IT fires. But it's arbitrary how much time passes
-	 * before we call it "late". I've picked one second.
-	 */
-	if (unlikely(ticks_elapsed > HZ)) {
-		/* Scenario 3: very long delay?  bad in any case */
-		printk (KERN_CRIT "timer_interrupt(CPU %d): delayed!"
-			" cycles %lX rem %lX "
-			" next/now %lX/%lX\n",
-			cpu,
-			cycles_elapsed, cycles_remainder,
-			next_tick, now );
+		ticks_elapsed += cycles_elapsed / cpt;
 	}
 
 	/* convert from "division remainder" to "remainder of clock tick" */
@@ -122,18 +102,56 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cpuinfo->it_value = next_tick;
 
-	/* Skip one clocktick on purpose if we are likely to miss next_tick.
-	 * We want to avoid the new next_tick being less than CR16.
-	 * If that happened, itimer wouldn't fire until CR16 wrapped.
-	 * We'll catch the tick we missed on the tick after that.
+	/* Program the IT when to deliver the next interrupt.
+	 * Only bottom 32-bits of next_tick are writable in CR16!
 	 */
-	if (!(cycles_remainder >> 13))
-		next_tick += cpt;
-
-	/* Program the IT when to deliver the next interrupt. */
-	/* Only bottom 32-bits of next_tick are written to cr16.  */
 	mtctl(next_tick, 16);
 
+	/* Skip one clocktick on purpose if we missed next_tick.
+	 * The new CR16 must be "later" than current CR16 otherwise
+	 * itimer would not fire until CR16 wrapped - e.g 4 seconds
+	 * later on a 1Ghz processor. We'll account for the missed
+	 * tick on the next timer interrupt.
+	 *
+	 * "next_tick - now" will always give the difference regardless
+	 * if one or the other wrapped. If "now" is "bigger" we'll end up
+	 * with a very large unsigned number.
+	 */
+	now2 = mfctl(16);
+	if (next_tick - now2 > cpt)
+		mtctl(next_tick+cpt, 16);
+
+#if 1
+/*
+ * GGG: DEBUG code for how many cycles programming CR16 used.
+ */
+	if (unlikely(now2 - now > 0x3000)) 	/* 12K cycles */
+		printk (KERN_CRIT "timer_interrupt(CPU %d): SLOW! 0x%lx cycles!"
+			" cyc %lX rem %lX "
+			" next/now %lX/%lX\n",
+			cpu, now2 - now, cycles_elapsed, cycles_remainder,
+			next_tick, now );
+#endif
+
+	/* Can we differentiate between "early CR16" (aka Scenario 1) and
+	 * "long delay" (aka Scenario 3)? I don't think so.
+	 *
+	 * Timer_interrupt will be delivered at least a few hundred cycles
+	 * after the IT fires. But it's arbitrary how much time passes
+	 * before we call it "late". I've picked one second.
+	 *
+	 * It's important NO printk's are between reading CR16 and
+	 * setting up the next value. May introduce huge variance.
+	 */
+	if (unlikely(ticks_elapsed > HZ)) {
+		/* Scenario 3: very long delay?  bad in any case */
+		printk (KERN_CRIT "timer_interrupt(CPU %d): delayed!"
+			" cycles %lX rem %lX "
+			" next/now %lX/%lX\n",
+			cpu,
+			cycles_elapsed, cycles_remainder,
+			next_tick, now );
+	}
 
 	/* Done mucking with unreliable delivery of interrupts.
 	 * Go do system house keeping.
@@ -173,7 +191,7 @@ EXPORT_SYMBOL(profile_pc);
 
 /* clock source code */
 
-static cycle_t read_cr16(void)
+static cycle_t read_cr16(struct clocksource *cs)
 {
 	return get_cycles();
 }
diff --git a/arch/parisc/lib/checksum.c b/arch/parisc/lib/checksum.c
index 462696d..ae66d31 100644
--- a/arch/parisc/lib/checksum.c
+++ b/arch/parisc/lib/checksum.c
@@ -13,8 +13,6 @@
  *		modify it under the terms of the GNU General Public License
  *		as published by the Free Software Foundation; either version
  *		2 of the License, or (at your option) any later version.
- *
- * $Id: checksum.c,v 1.3 1997/12/01 17:57:34 ralf Exp $
  */
 #include <linux/module.h>
 #include <linux/types.h>
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index bbda909..abf41f4 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -405,7 +405,7 @@ byte_copy:
 
 unaligned_copy:
 	/* possibly we are aligned on a word, but not on a double... */
-	if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
+	if (likely((t1 & (sizeof(unsigned int)-1)) == 0)) {
 		t2 = src & (sizeof(unsigned int) - 1);
 
 		if (unlikely(t2 != 0)) {
diff --git a/arch/parisc/math-emu/decode_exc.c b/arch/parisc/math-emu/decode_exc.c
index 66c8a9f..3ca1c61 100644
--- a/arch/parisc/math-emu/decode_exc.c
+++ b/arch/parisc/math-emu/decode_exc.c
@@ -40,7 +40,7 @@
  * END_DESC
 */
 
-
+#include <linux/kernel.h>
 #include "float.h"
 #include "sgl_float.h"
 #include "dbl_float.h"
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 92c7fa4..d617e79 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -1,5 +1,4 @@
-/* $Id: fault.c,v 1.5 2000/01/26 16:20:29 jsm Exp $
- *
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 4356ceb..b0831d9 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -370,34 +370,22 @@ static void __init setup_bootmem(void)
 
 void free_initmem(void)
 {
-	unsigned long addr, init_begin, init_end;
-
-	printk(KERN_INFO "Freeing unused kernel memory: ");
+	unsigned long addr;
+	unsigned long init_begin = (unsigned long)__init_begin;
+	unsigned long init_end = (unsigned long)__init_end;
 
 #ifdef CONFIG_DEBUG_KERNEL
 	/* Attempt to catch anyone trying to execute code here
 	 * by filling the page with BRK insns.
-	 * 
-	 * If we disable interrupts for all CPUs, then IPI stops working.
-	 * Kinda breaks the global cache flushing.
 	 */
-	local_irq_disable();
-
-	memset(__init_begin, 0x00,
-		(unsigned long)__init_end - (unsigned long)__init_begin);
-
-	flush_data_cache();
-	asm volatile("sync" : : );
-	flush_icache_range((unsigned long)__init_begin, (unsigned long)__init_end);
-	asm volatile("sync" : : );
-
-	local_irq_enable();
+	memset((void *)init_begin, 0x00, init_end - init_begin);
+	flush_icache_range(init_begin, init_end);
 #endif
 	
 	/* align __init_begin and __init_end to page size,
 	   ignoring linker script where we might have tried to save RAM */
-	init_begin = PAGE_ALIGN((unsigned long)(__init_begin));
-	init_end   = PAGE_ALIGN((unsigned long)(__init_end));
+	init_begin = PAGE_ALIGN(init_begin);
+	init_end = PAGE_ALIGN(init_end);
 	for (addr = init_begin; addr < init_end; addr += PAGE_SIZE) {
 		ClearPageReserved(virt_to_page(addr));
 		init_page_count(virt_to_page(addr));
@@ -409,7 +397,8 @@ void free_initmem(void)
 	/* set up a new led state on systems shipped LED State panel */
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE);
 	
-	printk("%luk freed\n", (init_end - init_begin) >> 10);
+	printk(KERN_INFO "Freeing unused kernel memory: %luk freed\n",
+		(init_end - init_begin) >> 10);
 }
 
 
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 5d610cb..0f0e0b9 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1134,7 +1134,7 @@ static const struct file_operations ccio_proc_bitmap_fops = {
 	.llseek = seq_lseek,
 	.release = single_release,
 };
-#endif
+#endif /* CONFIG_PROC_FS */
 
 /**
  * ccio_find_ioc - Find the ioc in the ioc_list
@@ -1568,14 +1568,15 @@ static int __init ccio_probe(struct parisc_device *dev)
 	/* if this fails, no I/O cards will work, so may as well bug */
 	BUG_ON(dev->dev.platform_data == NULL);
 	HBA_DATA(dev->dev.platform_data)->iommu = ioc;
-	
+
+#ifdef CONFIG_PROC_FS
 	if (ioc_count == 0) {
 		proc_create(MODULE_NAME, 0, proc_runway_root,
 			    &ccio_proc_info_fops);
 		proc_create(MODULE_NAME"-bitmap", 0, proc_runway_root,
 			    &ccio_proc_bitmap_fops);
 	}
-
+#endif
 	ioc_count++;
 
 	parisc_has_iommu();
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 52ae0b1..c590974 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -353,7 +353,7 @@ static unsigned int dino_startup_irq(unsigned int irq)
 	return 0;
 }
 
-static struct hw_interrupt_type dino_interrupt_type = {
+static struct irq_chip dino_interrupt_type = {
 	.typename	= "GSC-PCI",
 	.startup	= dino_startup_irq,
 	.shutdown	= dino_disable_irq,
@@ -1019,22 +1019,22 @@ static int __init dino_probe(struct parisc_device *dev)
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	bus = pci_scan_bus_parented(&dev->dev, dino_current_bus,
-				    &dino_cfg_ops, NULL);
+	dino_dev->hba.hba_bus = bus = pci_scan_bus_parented(&dev->dev,
+			 dino_current_bus, &dino_cfg_ops, NULL);
+
 	if(bus) {
-		pci_bus_add_devices(bus);
 		/* This code *depends* on scanning being single threaded
 		 * if it isn't, this global bus number count will fail
 		 */
 		dino_current_bus = bus->subordinate + 1;
 		pci_bus_assign_resources(bus);
+		pci_bus_add_devices(bus);
 	} else {
-		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (probably duplicate bus number %d)\n",
+		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
 		       dev_name(&dev->dev), dino_current_bus);
 		/* increment the bus number in case of duplicates */
 		dino_current_bus++;
 	}
-	dino_dev->hba.hba_bus = bus;
 	return 0;
 }
 
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index f415fdd..eb079d6 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -188,7 +188,7 @@ static unsigned int eisa_startup_irq(unsigned int irq)
 	return 0;
 }
 
-static struct hw_interrupt_type eisa_interrupt_type = {
+static struct irq_chip eisa_interrupt_type = {
 	.typename =	"EISA",
 	.startup =	eisa_startup_irq,
 	.shutdown =	eisa_disable_irq,
diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c
index d336329..647adc9 100644
--- a/drivers/parisc/gsc.c
+++ b/drivers/parisc/gsc.c
@@ -148,7 +148,7 @@ static unsigned int gsc_asic_startup_irq(unsigned int irq)
 	return 0;
 }
 
-static struct hw_interrupt_type gsc_asic_interrupt_type = {
+static struct irq_chip gsc_asic_interrupt_type = {
 	.typename =	"GSC-ASIC",
 	.startup =	gsc_asic_startup_irq,
 	.shutdown =	gsc_asic_disable_irq,
@@ -158,7 +158,7 @@ static struct hw_interrupt_type gsc_asic_interrupt_type = {
 	.end =		no_end_irq,
 };
 
-int gsc_assign_irq(struct hw_interrupt_type *type, void *data)
+int gsc_assign_irq(struct irq_chip *type, void *data)
 {
 	static int irq = GSC_IRQ_BASE;
 	struct irq_desc *desc;
diff --git a/drivers/parisc/gsc.h b/drivers/parisc/gsc.h
index 762a1ba..b9d7bfb 100644
--- a/drivers/parisc/gsc.h
+++ b/drivers/parisc/gsc.h
@@ -38,7 +38,7 @@ struct gsc_asic {
 int gsc_common_setup(struct parisc_device *parent, struct gsc_asic *gsc_asic);
 int gsc_alloc_irq(struct gsc_irq *dev);			/* dev needs an irq */
 int gsc_claim_irq(struct gsc_irq *dev, int irq);	/* dev needs this irq */
-int gsc_assign_irq(struct hw_interrupt_type *type, void *data);
+int gsc_assign_irq(struct irq_chip *type, void *data);
 int gsc_find_local_irq(unsigned int irq, int *global_irq, int limit);
 void gsc_fixup_irqs(struct parisc_device *parent, void *ctrl,
 		void (*choose)(struct parisc_device *child, void *ctrl));
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 73348c4..230a5a4 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -727,7 +727,7 @@ static void iosapic_set_affinity_irq(unsigned int irq,
 }
 #endif
 
-static struct hw_interrupt_type iosapic_interrupt_type = {
+static struct irq_chip iosapic_interrupt_type = {
 	.typename =	"IO-SAPIC-level",
 	.startup =	iosapic_startup_irq,
 	.shutdown =	iosapic_disable_irq,
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 59fbbf1..1aebc1f 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -980,28 +980,38 @@ static void
 lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 {
 	unsigned long bytecnt;
-	pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;	/* PA_VIEW */
-	pdc_pat_cell_mod_maddr_block_t io_pdc_cell;	/* IO_VIEW */
 	long io_count;
 	long status;	/* PDC return status */
 	long pa_count;
+	pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;    /* PA_VIEW */
+	pdc_pat_cell_mod_maddr_block_t *io_pdc_cell;    /* IO_VIEW */
 	int i;
 
+	pa_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t), GFP_KERNEL);
+	if (!pa_pdc_cell)
+		return;
+
+	io_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t), GFP_KERNEL);
+	if (!pa_pdc_cell) {
+		kfree(pa_pdc_cell);
+		return;
+	}
+
 	/* return cell module (IO view) */
 	status = pdc_pat_cell_module(&bytecnt, pa_dev->pcell_loc, pa_dev->mod_index,
-				PA_VIEW, & pa_pdc_cell);
-	pa_count = pa_pdc_cell.mod[1];
+				PA_VIEW, pa_pdc_cell);
+	pa_count = pa_pdc_cell->mod[1];
 
 	status |= pdc_pat_cell_module(&bytecnt, pa_dev->pcell_loc, pa_dev->mod_index,
-				IO_VIEW, &io_pdc_cell);
-	io_count = io_pdc_cell.mod[1];
+				IO_VIEW, io_pdc_cell);
+	io_count = io_pdc_cell->mod[1];
 
 	/* We've already done this once for device discovery...*/
 	if (status != PDC_OK) {
 		panic("pdc_pat_cell_module() call failed for LBA!\n");
 	}
 
-	if (PAT_GET_ENTITY(pa_pdc_cell.mod_info) != PAT_ENTITY_LBA) {
+	if (PAT_GET_ENTITY(pa_pdc_cell->mod_info) != PAT_ENTITY_LBA) {
 		panic("pdc_pat_cell_module() entity returned != PAT_ENTITY_LBA!\n");
 	}
 
@@ -1016,8 +1026,8 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 		} *p, *io;
 		struct resource *r;
 
-		p = (void *) &(pa_pdc_cell.mod[2+i*3]);
-		io = (void *) &(io_pdc_cell.mod[2+i*3]);
+		p = (void *) &(pa_pdc_cell->mod[2+i*3]);
+		io = (void *) &(io_pdc_cell->mod[2+i*3]);
 
 		/* Convert the PAT range data to PCI "struct resource" */
 		switch(p->type & 0xff) {
@@ -1096,6 +1106,9 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 			break;
 		}
 	}
+
+	kfree(pa_pdc_cell);
+	kfree(io_pdc_cell);
 }
 #else
 /* keep compiler from complaining about missing declarations */
@@ -1509,10 +1522,6 @@ lba_driver_probe(struct parisc_device *dev)
 	lba_bus = lba_dev->hba.hba_bus =
 		pci_scan_bus_parented(&dev->dev, lba_dev->hba.bus_num.start,
 				cfg_ops, NULL);
-	if (lba_bus) {
-		lba_next_bus = lba_bus->subordinate + 1;
-		pci_bus_add_devices(lba_bus);
-	}
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
@@ -1533,7 +1542,6 @@ lba_driver_probe(struct parisc_device *dev)
 	}
 	pci_enable_bridges(lba_bus);
 
-
 	/*
 	** Once PCI register ops has walked the bus, access to config
 	** space is restricted. Avoids master aborts on config cycles.
@@ -1543,6 +1551,11 @@ lba_driver_probe(struct parisc_device *dev)
 		lba_dev->flags |= LBA_FLAG_SKIP_PROBE;
 	}
 
+	if (lba_bus) {
+		lba_next_bus = lba_bus->subordinate + 1;
+		pci_bus_add_devices(lba_bus);
+	}
+
 	/* Whew! Finally done! Tell services we got this one covered. */
 	return 0;
 }
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index e5999c4..4b62b89 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -2057,6 +2057,7 @@ void sba_directed_lmmio(struct parisc_device *pci_hba, struct resource *r)
 		r->start = (base & ~1UL) | PCI_F_EXTEND;
 		size = ~ READ_REG32(reg + LMMIO_DIRECT0_MASK);
 		r->end = r->start + size;
+		r->flags = IORESOURCE_MEM;
 	}
 }
 
@@ -2093,4 +2094,5 @@ void sba_distributed_lmmio(struct parisc_device *pci_hba, struct resource *r )
 	size = (~READ_REG32(sba->sba_hpa + LMMIO_DIST_MASK)) / ROPES_PER_IOC;
 	r->start += rope * (size + 1);	/* adjust base for this rope */
 	r->end = r->start + size;
+	r->flags = IORESOURCE_MEM;
 }
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 33e5ade..675f04e 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -325,7 +325,7 @@ static unsigned int superio_startup_irq(unsigned int irq)
 	return 0;
 }
 
-static struct hw_interrupt_type superio_interrupt_type = {
+static struct irq_chip superio_interrupt_type = {
 	.typename =	SUPERIO,
 	.startup =	superio_startup_irq,
 	.shutdown =	superio_disable_irq,
@@ -434,8 +434,8 @@ static void __init superio_parport_init(void)
 			0 /*base_hi*/,
 			PAR_IRQ, 
 			PARPORT_DMA_NONE /* dma */,
-			NULL /*struct pci_dev* */),
-			0 /* shared irq flags */ )
+			NULL /*struct pci_dev* */,
+			0 /* shared irq flags */))
 
 		printk(KERN_WARNING PFX "Probing parallel port failed.\n");
 #endif	/* CONFIG_PARPORT_PC */
diff --git a/drivers/scsi/zalon.c b/drivers/scsi/zalon.c
index 97f3158..27e84e4 100644
--- a/drivers/scsi/zalon.c
+++ b/drivers/scsi/zalon.c
@@ -134,7 +134,7 @@ zalon_probe(struct parisc_device *dev)
 
 	host = ncr_attach(&zalon7xx_template, unit, &device);
 	if (!host)
-		goto fail;
+		return -ENODEV;
 
 	if (request_irq(dev->irq, ncr53c8xx_intr, IRQF_SHARED, "zalon", host)) {
 	  dev_printk(KERN_ERR, &dev->dev, "irq problem with %d, detaching\n ",
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 0048f11..9eecbc0 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -616,6 +616,8 @@ config FB_STI
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
+	select STI_CONSOLE
+	select VT
 	default y
 	---help---
 	  STI refers to the HP "Standard Text Interface" which is a set of
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From - Thu Nov 08 21:04:29 2018
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From: Kurt Roeckx <kurt@roeckx.be>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
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On Sat, Jul 04, 2009 at 03:52:16PM -0400, John David Anglin wrote:
> > And then there is glob2 that fails with:
> > /usr/bin/ld: libgag/src/libgag.a(FileManager.o)(.text+0x2fc8): cannot reach 0000f9bf_memcpy@@GLIBC_2.2+0, recompile with -ffunction-sections
> > /usr/bin/ld: libgag/src/libgag.a(FileManager.o)(.text+0x2fc8): cannot handle R_PARISC_PCREL17F for memcpy@@GLIBC_2.2
> > /usr/bin/ld: final link failed: Bad value
> > collect2: ld returned 1 exit status
> 
> I couldn't duplicate the problem with binutils 2.19.1-1 and gcc-4.3
> 4.3.3-10, or with my own binutils build on two different systems.
> 
> The above shouldn't happen as the text size of FileManager.o is well below
> the size where a 17-bit branch can't reach the stub table.  Possibly, the
> stub table is full.  On the otherhand, the "0000f9bf_memcpy@@GLIBC_2.2+0"
> string looks garbled.  So, this may be another form of the SMP memory
> corruption that causes the segvs, particularly if it isn't reproducible
> on the build system.

It actually already failed twice on the same system with the same
error.  I've just let it retry again, we'll see if it fails again.

The log file show this is with:
gcc-4.3 4.3.3-13 / 4.3.3-11
binutils 2.19.1-1


Kurt

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From - Thu Nov 08 21:04:29 2018
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On Sat, Jul 04, 2009 at 11:03:01PM +0200, Kurt Roeckx wrote:
> On Sat, Jul 04, 2009 at 03:52:16PM -0400, John David Anglin wrote:
> > > And then there is glob2 that fails with:
> > > /usr/bin/ld: libgag/src/libgag.a(FileManager.o)(.text+0x2fc8): cannot reach 0000f9bf_memcpy@@GLIBC_2.2+0, recompile with -ffunction-sections
> > > /usr/bin/ld: libgag/src/libgag.a(FileManager.o)(.text+0x2fc8): cannot handle R_PARISC_PCREL17F for memcpy@@GLIBC_2.2
> > > /usr/bin/ld: final link failed: Bad value
> > > collect2: ld returned 1 exit status
> > 
> > I couldn't duplicate the problem with binutils 2.19.1-1 and gcc-4.3
> > 4.3.3-10, or with my own binutils build on two different systems.
> > 
> > The above shouldn't happen as the text size of FileManager.o is well below
> > the size where a 17-bit branch can't reach the stub table.  Possibly, the
> > stub table is full.  On the otherhand, the "0000f9bf_memcpy@@GLIBC_2.2+0"
> > string looks garbled.  So, this may be another form of the SMP memory
> > corruption that causes the segvs, particularly if it isn't reproducible
> > on the build system.
> 
> It actually already failed twice on the same system with the same
> error.  I've just let it retry again, we'll see if it fails again.

And it failed again with the same error, on peri now.


Kurt

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> On Fri, Jul 03, 2009 at 09:28:00PM +0200, Philipp Kern wrote:
> > On Fri, Jul 03, 2009 at 08:57:56PM +0200, Kurt Roeckx wrote:
> > > Did something change to peri?  I'm currently only seeing them on
> > > penalosa.
> > 
> > UP kernel, maybe?
> 
> Both peri and penalosa run 2.6.29-2-parisc64-smp and from what I
> can tell run on identical hardware.

I tried a SMP kernel (2.6.30.1 with the patch set posted earlier) on
my rp34404.  Fired up a GCC build.  It didn't take more than a few
minutes to trigger a couple of segvs in /bin/sh.  On the other hand,
I ran a UP version of 2.6.30 for more than a week without any major
problems.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 07/05/2009 01:34 AM, John David Anglin wrote:
>> On Fri, Jul 03, 2009 at 09:28:00PM +0200, Philipp Kern wrote:
>>> On Fri, Jul 03, 2009 at 08:57:56PM +0200, Kurt Roeckx wrote:
>>>> Did something change to peri?  I'm currently only seeing them on
>>>> penalosa.
>>> UP kernel, maybe?
>> Both peri and penalosa run 2.6.29-2-parisc64-smp and from what I
>> can tell run on identical hardware.
>
> I tried a SMP kernel (2.6.30.1 with the patch set posted earlier) on
> my rp34404.  Fired up a GCC build.  It didn't take more than a few
> minutes to trigger a couple of segvs in /bin/sh.  On the other hand,
> I ran a UP version of 2.6.30 for more than a week without any major
> problems.

So, instead of just complaining, wouldn't it be useful if someone with
root access would install a UP kernel (and disable nscd) for the time
being on the build servers?
That way we all would avoid debian build problems and could concentrate
on solving the issues with the SMP kernel itself.

In the meantime, all (IMHO) major kernel patches have now been included
in Linus' 2.6.31-rc2 kernel and I plan to backport and send them to the
stable-kernel team for inclusion into 2.6.29 and 2.6.30 stable
kernel series.

Helge
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From: Jurij Smakov <jurij@wooyd.org>
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To: Helge Deller <deller@gmx.de>
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On Sun, Jul 05, 2009 at 11:06:52AM +0200, Helge Deller wrote:
> On 07/05/2009 01:34 AM, John David Anglin wrote:
>>> On Fri, Jul 03, 2009 at 09:28:00PM +0200, Philipp Kern wrote:
>>>> On Fri, Jul 03, 2009 at 08:57:56PM +0200, Kurt Roeckx wrote:
>>>>> Did something change to peri?  I'm currently only seeing them on
>>>>> penalosa.
>>>> UP kernel, maybe?
>>> Both peri and penalosa run 2.6.29-2-parisc64-smp and from what I
>>> can tell run on identical hardware.
>>
>> I tried a SMP kernel (2.6.30.1 with the patch set posted earlier) on
>> my rp34404.  Fired up a GCC build.  It didn't take more than a few
>> minutes to trigger a couple of segvs in /bin/sh.  On the other hand,
>> I ran a UP version of 2.6.30 for more than a week without any major
>> problems.
>
> So, instead of just complaining, wouldn't it be useful if someone with
> root access would install a UP kernel (and disable nscd) for the time
> being on the build servers?
> That way we all would avoid debian build problems and could concentrate
> on solving the issues with the SMP kernel itself.
>
> In the meantime, all (IMHO) major kernel patches have now been included
> in Linus' 2.6.31-rc2 kernel and I plan to backport and send them to the
> stable-kernel team for inclusion into 2.6.29 and 2.6.30 stable
> kernel series.

HPPA folks, can you please convert at least one buildd to a UP
configuration? I have another example of extreme buildd flakiness mentioned
in bug #529485. Adam C Powell IV <hazelsct@debian.org> writes:

  That's too bad.  I saw 6 attempts to do 3.0.0-X of which two passed the
  first try and four failed.  At that rate (1/3), it would take nine
  attempts to have a decent chance of passing both rounds (debug static
  and optimized shared/static).

HPPA is the only arch for which petsc failed to build, and currently this
blocks petsc transition.

Best regards,
-- 
Jurij Smakov                                           jurij@wooyd.org
Key: http://www.wooyd.org/pgpkey/                      KeyID: C99E03CC



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On Sun, Jul 05, 2009 at 02:44:31PM +0100, Jurij Smakov wrote:
> HPPA folks, can you please convert at least one buildd to a UP
> configuration? I have another example of extreme buildd flakiness mention=
ed
> in bug #529485. Adam C Powell IV <hazelsct@debian.org> writes:

Well, paer is UP already.  It's interesting though that one of the
peri/penalosa twins works fine with SMP and the other does not.

Kind regards,
Philipp Kern
--=20
 .''`.  Philipp Kern                        Debian Developer
: :' :  http://philkern.de                         Stable Release Manager
`. `'   xmpp:phil@0x539.de                         Wanna-Build Admin
  `-    finger pkern/key@db.debian.org

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> That way we all would avoid debian build problems and could concentrate
> on solving the issues with the SMP kernel itself.

The problem actually may be present in UP kernels.  I had a segv this
morning building GCC with a UP 2.6.30.1:

adave@mx3210:~/gnu/gcc/objdir/hppa-linux/libjava$ gdb -c core /bin/sh
GNU gdb (GDB) 6.8.50.20090510-cvs
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "hppa-unknown-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
(no debugging symbols found)
BFD: Warning: /home/dave/gnu/gcc/objdir/hppa-linux/libjava/core is truncated: expected core file size >= 196608, found: 118784.
Reading symbols from /lib/ld.so.1...Reading symbols from /usr/lib/debug/lib/ld-2.9.so...done.
done.
Loaded symbols for /lib/ld.so.1
Reading symbols from /lib/libncurses.so.5...done.
Loaded symbols for /lib/libncurses.so.5
Reading symbols from /lib/libdl.so.2...Reading symbols from /usr/lib/debug/lib/libdl-2.9.so...done.
done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/libc.so.6...Reading symbols from /usr/lib/debug/lib/libc-2.9.so...done.
done.
Loaded symbols for /lib/libc.so.6
Core was generated by `/bin/sh -c /home/dave/gnu/gcc/gcc/mkinstalldirs `dirname gnu/java/locale/Locale'.
Program terminated with signal 11, Segmentation fault.
#0  _dl_map_object_deps (map=0x403d8880, preloads=0x40001398, npreloads=12, 
    trace_mode=0, open_mode=0) at dl-deps.c:224
224	dl-deps.c: No such file or directory.
	in dl-deps.c
(gdb) bt
#0  _dl_map_object_deps (map=0x403d8880, preloads=0x40001398, npreloads=12, 
    trace_mode=0, open_mode=0) at dl-deps.c:224
#1  0x403b9bd4 in dl_main (phdr=0x10034, phnum=<value optimized out>, 
    user_entry=<value optimized out>) at rtld.c:1780
#2  0x403cb898 in _dl_sysdep_start (start_argptr=<value optimized out>, 
    dl_main=@0x403d7566: 0x403b8fe4 <dl_main>) at ../elf/dl-sysdep.c:239
#3  0x403b785c in _dl_start_final (arg=0xbfff2020, info=0xbfff2348)
    at rtld.c:332
#4  0x403b7adc in _dl_start (arg=0xbfff2020) at rtld.c:560
#5  0x403b742c in _start () from /lib/ld.so.1
#6  0x403b742c in _start () from /lib/ld.so.1
#7  0x403b742c in _start () from /lib/ld.so.1
#8  0x403b742c in _start () from /lib/ld.so.1
#9  0x403b742c in _start () from /lib/ld.so.1
#10 0x403b742c in _start () from /lib/ld.so.1
#11 0x403b742c in _start () from /lib/ld.so.1
#12 0x403b742c in _start () from /lib/ld.so.1
#13 0x403b742c in _start () from /lib/ld.so.1
#14 0x403b742c in _start () from /lib/ld.so.1
#15 0x403b742c in _start () from /lib/ld.so.1
#16 0x403b742c in _start () from /lib/ld.so.1
^CQuit

For some reason, gdb does terminate the backtrace.  Recent versions
of gdb also complain about core file truncation.  Think the full stack
region is not being dumped.

As with most of the segvs that I have debugged in the past, the problem
occurs in the dynamic loader.

This is the tombstone:

Jul  5 04:07:31 mx3210 kernel: 
Jul  5 04:07:31 mx3210 kernel: do_page_fault() pid=22068 command='sh' type=15 address=0x00000004
Jul  5 04:07:31 mx3210 kernel: Jul  5 04:07:31 mx3210 kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Jul  5 04:07:31 mx3210 kernel: PSW: 00000000000001000000000000001111 Not taintedJul  5 04:07:31 mx3210 kernel: r00-03  000000000004000f 00000000403d76a0 0000000
0403c2c23 00000000bfff2ac0
Jul  5 04:07:31 mx3210 kernel: r04-07  00000000403d76a0 000000000000000c 0000000
040001398 00000000403b0dc0
Jul  5 04:07:31 mx3210 kernel: r08-11  0000000000000000 0000000000000002 0000000
040000e88 00000000bfff2d08
Jul  5 04:07:31 mx3210 kernel: r12-15  000000004037e4b4 00000000bfff2c48 00000000403d76a0 0000000000000004
Jul  5 04:07:31 mx3210 kernel: r16-19  00000000bfff2c08 00000000bfff2bc8 00000000bfff2b88 00000000403d76a0
Jul  5 04:07:31 mx3210 kernel: r20-23  00000000bfff2d0f 0000000000000000 0000000040002000 0000000000000001
Jul  5 04:07:31 mx3210 kernel: r24-27  000000000000000c 0000000040001398 00000000400013a8 00000000000365e8
Jul  5 04:07:31 mx3210 kernel: r28-31  0000000000000000 0000000024242424 00000000bfff2e00 00000000403c45c3
Jul  5 04:07:31 mx3210 kernel: sr00-03  000000000000e800 000000000000e800 0000000000000000 000000000000e800
Jul  5 04:07:31 mx3210 kernel: sr04-07  000000000000e800 000000000000e800 000000000000e800 000000000000e800
Jul  5 04:07:31 mx3210 kernel: 
Jul  5 04:07:31 mx3210 kernel:       VZOUICununcqcqcqcqcqcrmunTDVZOUI
Jul  5 04:07:31 mx3210 kernel: FPSR: 00000000000000000000000000000000
Jul  5 04:07:31 mx3210 kernel: FPER1: 00000000
Jul  5 04:07:31 mx3210 kernel: fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
Jul  5 04:07:31 mx3210 kernel: fr04-07  fffffffffffff000 0000000000000000 ffffffffffffff9c bff0000000000000
Jul  5 04:07:31 mx3210 kernel: fr08-11  0000000000000000 000000004055d400 0000000000000802 000000004055d400
Jul  5 04:07:31 mx3210 kernel: fr12-15  00000000401a7d6c 0000000000000000 00000000401a5e94 000000007f40c580
Jul  5 04:07:31 mx3210 kernel: fr16-19  000000007f40ab38 000000007f406c78 000000007f430000 000000007f430000
Jul  5 04:07:31 mx3210 kernel: fr20-23  000000004055d400 00000000404f8bcc 000000000000026a 0000003700000000
Jul  5 04:07:31 mx3210 kernel: fr24-27  0000000000000000 000000007f430000 000000004055d400 0000000000000803
Jul  5 04:07:31 mx3210 kernel: fr28-31  ffffffffffffffe9 000000007ec4bc88 000000004055d400 0000000000000803
Jul  5 04:07:31 mx3210 kernel: 
Jul  5 04:07:31 mx3210 kernel: IASQ: 000000000000e800 000000000000e800 IAOQ: 00000000403c2b03 00000000403c2b07
Jul  5 04:07:31 mx3210 kernel:  IIR: 0f88108c    ISR: 000000000000e800  IOR: 0000000000000004
Jul  5 04:07:31 mx3210 kernel:  CPU:        0   CR30: 00000002bf8fc000 CR31: 0000000040564000
Jul  5 04:07:31 mx3210 kernel:  ORIG_R28: 00000000407a55c8
Jul  5 04:07:31 mx3210 kernel:  IAOQ[0]: 00000000403c2b03
Jul  5 04:07:31 mx3210 kernel:  IAOQ[1]: 00000000403c2b07
Jul  5 04:07:31 mx3210 kernel:  RP(r2): 00000000403c2c23

$ disasm 0x0f88108c
   0:	0f 88 10 8c 	ldw 4(ret0),r12

(gdb) p/x $pc
$1 = 0x403c2b00
(gdb) disass 0x403c2af0 0x403c2b10
Dump of assembler code from 0x403c2af0 to 0x403c2b10:
0x403c2af0 <_dl_map_object_deps+396>:	cmpib,= 0,ret0,0x403c32c8 <_dl_map_object_deps+2404>
0x403c2af4 <_dl_map_object_deps+400>:	ldi 0,r11
0x403c2af8 <_dl_map_object_deps+404>:	ldw 34(r10),ret0
0x403c2afc <_dl_map_object_deps+408>:	ldw -30(r3),r21
0x403c2b00 <_dl_map_object_deps+412>:	ldw 4(ret0),r12
0x403c2b04 <_dl_map_object_deps+416>:	stw r21,18(r3)
0x403c2b08 <_dl_map_object_deps+420>:	ldw -34(r3),ret0
0x403c2b0c <_dl_map_object_deps+424>:	stw r12,20(r3)
End of assembler dump.
(gdb) p/x $r10
$2 = 0x40000e88
(gdb) p/x *($r10 + 0x34)
$3 = 0x0
(gdb) p/x $r10 + 0x34
$4 = 0x40000ebc
(gdb) x/32x $r10
0x40000e88:	0x4029b000	0x40000e78	0x4029e5fc	0x40001118
0x40000e98:	0x40000bf0	0x40000e88	0x00000000	0x400010dc
0x40000ea8:	0x00000000	0x4029e5fc	0x00000000	0x00000000
0x40000eb8:	0x00000000	0x00000000	0x00000000	0x00000000
0x40000ec8:	0x00000000	0x00000000	0x00000000	0x00000000
0x40000ed8:	0x00000000	0x00000000	0x00000000	0x00000000
0x40000ee8:	0x00000000	0x00000000	0x00000000	0x00000000
0x40000ef8:	0x00000000	0x00000000	0x00000000	0x00000000

(gdb) p **preloads
$7 = {l_addr = 1077391360, l_name = 0x40000bd8 "/lib/libncurses.so.5", 
  l_ld = 0x403b0d18, l_next = 0x40000e88, l_prev = 0x403d8180, 
  l_real = 0x40000bf0, l_ns = 0, l_libname = 0x40000e44, l_info = {0x0, 
  0x403b0d20, 0x403b0d70, 0x403b0d68, 0x403b0d40, 0x403b0d48, 0x403b0d50, 
  0x403b0d88, 0x403b0d90, 0x403b0d98, 0x403b0d58, 0x403b0d60, 0x403b0d30, 
  0x403b0d38, 0x403b0d28, 0x0, 0x0, 0x0, 0x0, 0x0, 0x403b0d78, 0x0, 0x0, 
  0x403b0d80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x403b0da8, 
  0x403b0da0, 0x0, 0x0, 0x0, 0x0, 0x403b0db8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 
  0x0, 0x0, 0x403b0db0, 0x0 <repeats 26 times>}, l_phdr = 0x4037b034, 
  l_entry = 1077435232, l_phnum = 4, l_ldnum = 26, l_searchlist = {
  r_list = 0x0, r_nlist = 0}, l_symbolic_searchlist = {r_list = 0x40000e40, 
  r_nlist = 0}, l_loader = 0x403d8880, l_versions = 0x0, l_nversions = 0, 
  l_nbuckets = 521, l_gnu_bitmask_idxbits = 0, l_gnu_shift = 0, 
  l_gnu_bitmask = 0x0, {l_gnu_buckets = 0x4037b8e0, l_chain = 0x4037b8e0}, {
  l_gnu_chain_zero = 0x4037b0bc, l_buckets = 0x4037b0bc}, 
  l_direct_opencount = 0, l_type = lt_library, l_relocated = 0, 
  l_init_called = 0, l_global = 0, l_reserved = 1, l_phdr_allocated = 0, 
  l_soname_added = 0, l_faked = 0, l_need_tls_init = 0, l_used = 0, 
  l_auditing = 0, l_audit_any_plt = 0, l_removed = 0, l_contiguous = 1, 
  l_rpath_dirs = {dirs = 0x0, malloced = 0}, l_reloc_result = 0x0, 
  l_versyms = 0x0, l_origin = 0x40000e60 "/lib", l_map_start = 1077391360, 
  l_map_end = 1077616976, l_text_end = 1077616640, l_scope_mem = {0x403d89dc, 
  0x0, 0x0, 0x0}, l_scope_max = 4, l_scope = 0x40000da8, l_local_scope = {
  0x40000d4c, 0x0}, l_dev = 536937216, l_ino = 641363, l_runpath_dirs = {
  dirs = 0x0, malloced = 0}, l_initfini = 0x40001398, l_reldepsmax = 0, 
  l_reldeps = 0x0, l_feature_1 = 0, l_flags_1 = 0, l_flags = 0, l_idx = 0, 
  l_mach = {fptr_table_len = 0, fptr_table = 0x0}, l_lookup_cache = {
  sym = 0x0, type_class = 0, value = 0x0, ret = 0x0}, l_tls_initimage = 0x0, 
  l_tls_initimage_size = 0, l_tls_blocksize = 0, l_tls_align = 0, 
  l_tls_firstbyte_offset = 0, l_tls_offset = 0, l_tls_modid = 0, 
  l_relro_addr = 0, l_relro_size = 0, l_serial = 2, l_audit = 0x40000e40}

Register $r10 contains the address of the next link map:
(gdb) p (*preloads)->l_next
$10 = (struct link_map *) 0x40000e88

(gdb) p *(*preloads)->l_next
$11 = {l_addr = 1076473856, l_name = 0x40000e78 "/lib/libdl.so.2", 
  l_ld = 0x4029e5fc, l_next = 0x40001118, l_prev = 0x40000bf0, 
  l_real = 0x40000e88, l_ns = 0, l_libname = 0x400010dc, l_info = {0x0, 
  0x4029e5fc, 0x0 <repeats 74 times>}, l_phdr = 0x4029b034, 
  l_entry = 1076477148, l_phnum = 7, l_ldnum = 31, l_searchlist = {
  r_list = 0x0, r_nlist = 0}, l_symbolic_searchlist = {r_list = 0x400010d8, 
  r_nlist = 0}, l_loader = 0x403d8880, l_versions = 0x0, l_nversions = 0, 
  l_nbuckets = 0, l_gnu_bitmask_idxbits = 0, l_gnu_shift = 0, 
  l_gnu_bitmask = 0x0, {l_gnu_buckets = 0x0, l_chain = 0x0}, {
  l_gnu_chain_zero = 0x0, l_buckets = 0x0}, l_direct_opencount = 0, 
  l_type = lt_library, l_relocated = 0, l_init_called = 0, l_global = 0, 
  l_reserved = 1, l_phdr_allocated = 0, l_soname_added = 0, l_faked = 0, 
  l_need_tls_init = 0, l_used = 0, l_auditing = 0, l_audit_any_plt = 0, 
  l_removed = 0, l_contiguous = 1, l_rpath_dirs = {dirs = 0x0, malloced = 0}, 
  l_reloc_result = 0x0, l_versyms = 0x0, l_origin = 0x400010f8 "/lib", 
  l_map_start = 1076473856, l_map_end = 1076488476, l_text_end = 1076490240, 
  l_scope_mem = {0x403d89dc, 0x0, 0x0, 0x0}, l_scope_max = 4, 
  l_scope = 0x40001040, l_local_scope = {0x40000fe4, 0x0}, l_dev = 536937216, 
  l_ino = 641559, l_runpath_dirs = {dirs = 0x0, malloced = 0}, 
  l_initfini = 0x0, l_reldepsmax = 0, l_reldeps = 0x0, l_feature_1 = 0, 
  l_flags_1 = 0, l_flags = 0, l_idx = 0, l_mach = {fptr_table_len = 0, 
  fptr_table = 0x0}, l_lookup_cache = {sym = 0x0, type_class = 0, 
  value = 0x0, ret = 0x0}, l_tls_initimage = 0x0, l_tls_initimage_size = 0, 
  l_tls_blocksize = 0, l_tls_align = 0, l_tls_firstbyte_offset = 0, 
  l_tls_offset = 0, l_tls_modid = 0, l_relro_addr = 0, l_relro_size = 0, 
  l_serial = 3, l_audit = 0x400010d8}

(gdb) p &(*preloads)->l_next->l_info
$14 = (Elf32_Dyn *(*)[76]) 0x40000ea8
(gdb) p (*preloads)->l_next->l_info
$15 = {0x0, 0x4029e5fc, 0x0 <repeats 74 times>}
(gdb) p/x 0x40000ea8 + 5 * 4
$17 = 0x40000ebc

So, the segmentation fault was caused by a 0x0 in the l_info field of
the link map for "/lib/libdl.so.2".

elf.h:#define DT_STRTAB	5		/* Address of string table */

This is the code that causes the segv:

          const char *strtab = (const void *) D_PTR (l, l_info[DT_STRTAB]);

$ readelf -a /lib/libdl.so.2
...
Dynamic section at offset 0x25fc contains 27 entries:
  Tag        Type                         Name/Value
 0x00000001 (NEEDED)                     Shared library: [libc.so.6]
 0x00000001 (NEEDED)                     Shared library: [ld.so.1]
 0x0000000e (SONAME)                     Library soname: [libdl.so.2]
 0x0000000c (INIT)                       0xc9c
 0x0000000d (FINI)                       0x20bc
 0x00000019 (INIT_ARRAY)                 0x3590
 0x0000001b (INIT_ARRAYSZ)               4 (bytes)
 0x00000004 (HASH)                       0x2168
 0x6ffffef5 (GNU_HASH)                   0x134
 0x00000005 (STRTAB)                     0x47c

It would appear there should be a string table.

Carlos, what do you think?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Register $r10 contains the address of the next link map:
> (gdb) p (*preloads)->l_next
> $10 = (struct link_map *) 0x40000e88
> 
> (gdb) p *(*preloads)->l_next
> $11 = {l_addr = 1076473856, l_name = 0x40000e78 "/lib/libdl.so.2", 
>   l_ld = 0x4029e5fc, l_next = 0x40001118, l_prev = 0x40000bf0, 
>   l_real = 0x40000e88, l_ns = 0, l_libname = 0x400010dc, l_info = {0x0, 
>   0x4029e5fc, 0x0 <repeats 74 times>}, l_phdr = 0x4029b034, 
>   l_entry = 1076477148, l_phnum = 7, l_ldnum = 31, l_searchlist = {
>   r_list = 0x0, r_nlist = 0}, l_symbolic_searchlist = {r_list = 0x400010d8, 
>   r_nlist = 0}, l_loader = 0x403d8880, l_versions = 0x0, l_nversions = 0, 
>   l_nbuckets = 0, l_gnu_bitmask_idxbits = 0, l_gnu_shift = 0, 
>   l_gnu_bitmask = 0x0, {l_gnu_buckets = 0x0, l_chain = 0x0}, {
>   l_gnu_chain_zero = 0x0, l_buckets = 0x0}, l_direct_opencount = 0, 
>   l_type = lt_library, l_relocated = 0, l_init_called = 0, l_global = 0, 
>   l_reserved = 1, l_phdr_allocated = 0, l_soname_added = 0, l_faked = 0, 
>   l_need_tls_init = 0, l_used = 0, l_auditing = 0, l_audit_any_plt = 0, 
>   l_removed = 0, l_contiguous = 1, l_rpath_dirs = {dirs = 0x0, malloced = 0}, 
>   l_reloc_result = 0x0, l_versyms = 0x0, l_origin = 0x400010f8 "/lib", 
>   l_map_start = 1076473856, l_map_end = 1076488476, l_text_end = 1076490240, 
>   l_scope_mem = {0x403d89dc, 0x0, 0x0, 0x0}, l_scope_max = 4, 
>   l_scope = 0x40001040, l_local_scope = {0x40000fe4, 0x0}, l_dev = 536937216, 
>   l_ino = 641559, l_runpath_dirs = {dirs = 0x0, malloced = 0}, 
>   l_initfini = 0x0, l_reldepsmax = 0, l_reldeps = 0x0, l_feature_1 = 0, 
>   l_flags_1 = 0, l_flags = 0, l_idx = 0, l_mach = {fptr_table_len = 0, 
>   fptr_table = 0x0}, l_lookup_cache = {sym = 0x0, type_class = 0, 
>   value = 0x0, ret = 0x0}, l_tls_initimage = 0x0, l_tls_initimage_size = 0, 
>   l_tls_blocksize = 0, l_tls_align = 0, l_tls_firstbyte_offset = 0, 
>   l_tls_offset = 0, l_tls_modid = 0, l_relro_addr = 0, l_relro_size = 0, 
>   l_serial = 3, l_audit = 0x400010d8}

When I run the command directly under gdb, the info is a different location
and the string table entry is not null:

(gdb) bt
#0  _dl_map_object_deps (map=0x403d8880, preloads=0x40001170, npreloads=12, 
    trace_mode=0, open_mode=0) at dl-deps.c:224
#1  0x403b9bd4 in dl_main (phdr=0x10034, phnum=<value optimized out>, 
    user_entry=<value optimized out>) at rtld.c:1780
#2  0x403cb898 in _dl_sysdep_start (start_argptr=<value optimized out>, 
    dl_main=@0x403d7566: 0x403b8fe4 <dl_main>) at ../elf/dl-sysdep.c:239
#3  0x403b785c in _dl_start_final (arg=0xbff01028, info=0xbff01188)
    at rtld.c:332
#4  0x403b7adc in _dl_start (arg=0xbff01028) at rtld.c:560

(gdb) p *(*preloads)->l_next
$2 = {l_addr = 1076473856, l_name = 0x40000c50 "/lib/libdl.so.2", 
  l_ld = 0x4029e5fc, l_next = 0x40000ef0, l_prev = 0x400009c8, 
  l_real = 0x40000c60, l_ns = 0, l_libname = 0x40000eb4, l_info = {0x0, 
  0x4029e604, 0x4029e66c, 0x4029e664, 0x4029e634, 0x4029e644, 0x4029e64c, 
  0x4029e684, 0x4029e68c, 0x4029e694, 0x4029e654, 0x4029e65c, 0x4029e614, 
  0x4029e61c, 0x4029e60c, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4029e674, 0x0, 0x0, 
  0x4029e67c, 0x0, 0x4029e624, 0x0, 0x4029e62c, 0x0, 0x0, 0x0, 0x0, 0x0, 
  0x0, 0x4029e6b4, 0x4029e6ac, 0x4029e6a4, 0x4029e69c, 0x0, 0x0, 0x4029e6c4, 
  0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4029e6bc, 
  0x0 <repeats 25 times>, 0x4029e63c}, l_phdr = 0x4029b034, 
  l_entry = 1076477148, l_phnum = 7, l_ldnum = 31, l_searchlist = {
  r_list = 0x0, r_nlist = 0}, l_symbolic_searchlist = {r_list = 0x40000eb0, 
  r_nlist = 0}, l_loader = 0x403d8880, l_versions = 0x0, l_nversions = 0, 
  l_nbuckets = 22, l_gnu_bitmask_idxbits = 3, l_gnu_shift = 7, 
  l_gnu_bitmask = 0x4029b144, {l_gnu_buckets = 0x4029b154, 
  l_chain = 0x4029b154}, {l_gnu_chain_zero = 0x4029b148, 
  l_buckets = 0x4029b148}, l_direct_opencount = 0, l_type = lt_library, 
  l_relocated = 0, l_init_called = 0, l_global = 0, l_reserved = 1, 
  l_phdr_allocated = 0, l_soname_added = 0, l_faked = 0, l_need_tls_init = 0, 
  l_used = 0, l_auditing = 0, l_audit_any_plt = 0, l_removed = 0, 
  l_contiguous = 1, l_rpath_dirs = {dirs = 0x0, malloced = 0}, 
  l_reloc_result = 0x0, l_versyms = 0x0, l_origin = 0x40000ed0 "/lib", 
  l_map_start = 1076473856, l_map_end = 1076488476, l_text_end = 1076490240, 
  l_scope_mem = {0x403d89dc, 0x0, 0x0, 0x0}, l_scope_max = 4, 
  l_scope = 0x40000e18, l_local_scope = {0x40000dbc, 0x0}, l_dev = 536937216, 
  l_ino = 641559, l_runpath_dirs = {dirs = 0x0, malloced = 0}, 
  l_initfini = 0x0, l_reldepsmax = 0, l_reldeps = 0x0, l_feature_1 = 0, 
  l_flags_1 = 0, l_flags = 0, l_idx = 0, l_mach = {fptr_table_len = 0, 
  fptr_table = 0x0}, l_lookup_cache = {sym = 0x0, type_class = 0, 
  value = 0x0, ret = 0x0}, l_tls_initimage = 0x0, l_tls_initimage_size = 0, 
  l_tls_blocksize = 0, l_tls_align = 0, l_tls_firstbyte_offset = 0, 
  l_tls_offset = 0, l_tls_modid = 0, l_relro_addr = 0, l_relro_size = 0, 
  l_serial = 3, l_audit = 0x40000eb0}

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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New commits:
commit cc29c79e2c02e3857c4856d58efc703e8f404d4a
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Jul 5 15:08:57 2009 -0400

    parisc: stop using task->ptrace for {single,block}step flags
    
    task->ptrace flags belong to generic code, so instead thief some
    TIF_ bits to use. Somewhat risky conversion of code to test TASK_FLAGS
    instead of TASK_PTRACE in assembly, but it looks alright in the end.
    
    Not-yet-signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 78db65f7fffd1fc875d76e531b3a047ea61cf480
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Jul 5 14:36:16 2009 -0400

    parisc: split syscall_trace into two halves
    
    Instead of fiddling with gr[20], restructure code to return whether
    or not to -ENOSYS. (Also do a bit of fiddling to let them take
    pt_regs directly instead of re-computing it.)
    
    Not-yet-signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 089a930b17e497d35d84b0ee388112e24a5ffb34
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Jul 5 14:39:58 2009 -0400

    parisc: add missing TI_TASK macro in syscall.S
    
    LDREG 0(%r1),%r1 really wants to be accessing thread_info.task,
    instead of hardcoding the 0.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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Rebased ref, commits from common ancestor:
commit 8e4a718ff38d8539938ec3421935904c27e00c39
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat Jul 4 10:58:48 2009 -0700

    Linux 2.6.31-rc2

commit f50bf2b2f5e83b794e0bdb2f3f589f55ef0d52d0
Author: Paul Mundt <lethal@linux-sh.org>
Date:   Fri Jul 3 15:45:56 2009 +0900

    video: sm501fb: Early initialization of mm_lock mutex.
    
    Commit 537a1bf059fa312355696fa6db80726e655e7f17 (fbdev: add mutex for
    fb_mmap locking) introduces a ->mm_lock mutex for protecting smem
    assignments. Unfortunately in the case of sm501fb these happen quite
    early in the initialization code, well before the mutex_init() that takes
    place in register_framebuffer(), leading to:
    
       Badness at kernel/mutex.c:207
    
       Pid : 1, Comm:          swapper
       CPU : 0                 Not tainted  (2.6.31-rc1-00284-g529ba0d-dirty #2273)
    
       PC is at __mutex_lock_slowpath+0x72/0x1bc
       PR is at __mutex_lock_slowpath+0x66/0x1bc
       ...
    
    matroxfb appears to have the same issue and has solved it with an early
    mutex_init(), so we do the same for sm501fb.
    
    Signed-off-by: Paul Mundt <lethal@linux-sh.org>
    Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

commit de481ba925e880764e38b8756c93c05006892507
Merge: dd0888c264c0d5feb5d86eb69c1fdbcdb42566af 64daa4435a40aa1b7d0ece598ae783b89dda13ee
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat Jul 4 10:35:12 2009 -0700

    Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
    
    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: (27 commits)
      parisc: use generic atomic64 on 32-bit
      parisc: superio: fix build breakage
      parisc: Fix PCI resource allocation on non-PAT SBA machines
      parisc: perf: wire up sys_perf_counter_open
      parisc: add task_pt_regs macro
      parisc: wire sys_perf_counter_open to sys_ni_syscall
      parisc: inventory.c, fix bloated stack frame
      parisc: processor.c, fix bloated stack frame
      parisc: fix compile warning in mm/init.c
      parisc: remove dead code from sys_parisc32.c
      parisc: wire up rt_tgsigqueueinfo
      parisc: ensure broadcast tlb purge runs single threaded
      parisc: fix "delay!" timer handling
      parisc: fix mismatched parenthesis in memcpy.c
      parisc: Fix gcc 4.4 warning in lba_pci.c
      parisc: add parameter to read_cr16()
      parisc: decode_exc.c should include kernel.h
      parisc: remove obsolete hw_interrupt_type
      parisc: fix irq compile bugs in arch/parisc/kernel/irq.c
      parisc: advertise PCI devs after "assign_resources"
      ...
    
    Manually fixed up trivial conflicts in tools/perf/perf.h due to addition
    of SH vs HPPA perf-counter support.

commit dd0888c264c0d5feb5d86eb69c1fdbcdb42566af
Merge: 14c1b7c212de7c7c9231d5a676eb96f28c088338 1c90ea2c7eb3b24a07a2f82164323588fb029bc1
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat Jul 4 10:31:26 2009 -0700

    Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
    
    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
      mfd: fix pcap adc locking
      mfd: sm501, fix lock imbalance

commit 14c1b7c212de7c7c9231d5a676eb96f28c088338
Merge: 4806626782b4408e468ef686229556899be345c8 033a666ccb842ab4134fcd0c861d5ba9f5d6bf3a
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat Jul 4 10:11:38 2009 -0700

    Merge branch 'for-2.6.31' of git://linux-nfs.org/~bfields/linux
    
    * 'for-2.6.31' of git://linux-nfs.org/~bfields/linux:
      NFSD: Don't hold unrefcounted creds over call to nfsd_setuser()

commit 4806626782b4408e468ef686229556899be345c8
Merge: f1a745710f001e8c2eec6d525396083e1f4c389a baf922780251d12bc1c24c83df60c4c278abb745
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat Jul 4 09:47:01 2009 -0700

    Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
    
    * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
      MIPS: Fix CONFIG_FLATMEM version of pfn_valid()
      MIPS: Reorganize Cavium OCTEON PCI support.
      Update Yoichi Yuasa's e-mail address
      MIPS: Allow suspend and hibernation again on uniprocessor kernels.
      MIPS: 64-bit: Fix o32 core dump
      MIPS: BC47xx: Fix SSB irq setup
      MIPS: CMP: Update sync-r4k for current kernel
      MIPS: CMP: Move gcmp_probe to before the SMP ops
      MIPS: CMP: activate CMP support
      MIPS: CMP: Extend IPI handling to CPU number
      MIPS: CMP: Extend the GIC IPI interrupts beyond 32
      MIPS: Define __arch_swab64 for all mips r2 cpus
      MIPS: Update VR41xx GPIO driver to use gpiolib
      MIPS: Hookup new syscalls sys_rt_tgsigqueueinfo and sys_perf_counter_open.
      MIPS: Malta: Remove unnecessary function prototypes
      MIPS: MT: Remove unnecessary semicolons
      MIPS: Add support for Texas Instruments AR7 System-on-a-Chip

commit f1a745710f001e8c2eec6d525396083e1f4c389a
Merge: 29f31773e07772e73e3177a4af147244cd080554 7ce1695c40e765e99cd790f55fc68037bc05d080
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat Jul 4 09:46:13 2009 -0700

    Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
    
    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
      sound: do not set DEVNAME for OSS devices
      ALSA: hda - Add sanity check in PCM open callback
      ALSA: hda - Call snd_pcm_lib_hw_rates() again after codec open callback
      ALSA: hda - Avoid invalid formats and rates with shared SPDIF
      ALSA: hda - Improve ASUS eeePC 1000 mixer
      ALSA: hda - Add GPIO1 control at muting with HP laptops
      ALSA: usx2y - reparent sound device
      ALSA: snd_usb_caiaq: reparent sound device
      sound: virtuoso: fix Xonar D1/DX silence after resume
      ASoC: Only disable pxa2xx-i2s clocks if we enabled them
      ALSA: hda - Add quirk for HP 6930p
      ALSA: hda - Add missing static to patch_ca0110()
      ASoC: OMAP: fix OMAP1510 broken PCM pointer callback
      ASoC: remove BROKEN from Efika and pcm030 fabric drivers
      ASoC: Fix typo in MPC5200 PSC AC97 driver Kconfig

commit 29f31773e07772e73e3177a4af147244cd080554
Merge: 59107c6525c0d325649eae807905d34772d5a664 112942353992d95099fb5b71c679ff1046fccfcf
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat Jul 4 09:46:01 2009 -0700

    Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
    
    * git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
      kbuild: finally remove the obsolete variable $TOPDIR
      gitignore: ignore scripts/ihex2fw
      Kbuild: Disable the -Wformat-security gcc flag
      gitignore: ignore gcov output files
      kbuild: deb-pkg ship changelog
      Add new __init_task_data macro to be used in arch init_task.c files.
      asm-generic/vmlinux.lds.h: shuffle INIT_TASK* macro names in vmlinux.lds.h
      Add new macros for page-aligned data and bss sections.
      asm-generic/vmlinux.lds.h: Fix up RW_DATA_SECTION definition.

commit 59107c6525c0d325649eae807905d34772d5a664
Merge: 746a99a5af60ee676afa2ba469ccd1373493c7e7 ab0fd1debe730ec9998678a0c53caefbd121ed10
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat Jul 4 09:45:31 2009 -0700

    Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
    
    * 'for-linus' of git://git.kernel.dk/linux-2.6-block:
      block: don't merge requests of different failfast settings
      cciss: Ignore stale commands after reboot

commit 7ce1695c40e765e99cd790f55fc68037bc05d080
Merge: 854ace9c40d2b121191e1644aa4b0b68c4a226d3 954a973cab37ad5df3f87f08964166abd956cc17
Author: Takashi Iwai <tiwai@suse.de>
Date:   Fri Jul 3 23:50:47 2009 +0200

    Merge branch 'fix/soundcore' into for-linus
    
    * fix/soundcore:
      sound: do not set DEVNAME for OSS devices

commit 854ace9c40d2b121191e1644aa4b0b68c4a226d3
Merge: dbe45d0ce394732cc06187e929697fc0fb16aa53 c470331e69bd54d11a9ea3c27a0e4ad783d02d6b
Author: Takashi Iwai <tiwai@suse.de>
Date:   Fri Jul 3 23:50:45 2009 +0200

    Merge branch 'fix/hda' into for-linus
    
    * fix/hda:
      ALSA: hda - Add sanity check in PCM open callback
      ALSA: hda - Call snd_pcm_lib_hw_rates() again after codec open callback
      ALSA: hda - Avoid invalid formats and rates with shared SPDIF
      ALSA: hda - Improve ASUS eeePC 1000 mixer
      ALSA: hda - Add GPIO1 control at muting with HP laptops

commit 954a973cab37ad5df3f87f08964166abd956cc17
Author: Kay Sievers <kay.sievers@suse.de>
Date:   Fri Jul 3 20:56:05 2009 +0200

    sound: do not set DEVNAME for OSS devices
    
    Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

commit c470331e69bd54d11a9ea3c27a0e4ad783d02d6b
Author: Takashi Iwai <tiwai@suse.de>
Date:   Fri Jul 3 23:10:23 2009 +0200

    ALSA: hda - Add sanity check in PCM open callback
    
    Add some sanity checks of struct snd_pcm_hardware fields in the PCM
    open callback of hda driver.  This makes a bit easier to debug any PCM
    setup errors in the codec side.
    
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

commit 70d321e6380f128096429d6e5b678f94ab0cef5d
Author: Takashi Iwai <tiwai@suse.de>
Date:   Fri Jul 3 23:06:45 2009 +0200

    ALSA: hda - Call snd_pcm_lib_hw_rates() again after codec open callback
    
    The PCM rates bit field may have been changed by the codec open callback.
    In that case, we need to reset rate_min and rate_max.  So, simply call
    snd_pcm_lib_hw_rates() again after the codec open callback.
    
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

commit 022b466fc353d3dc7a152451144be656248666ce
Author: Takashi Iwai <tiwai@suse.de>
Date:   Fri Jul 3 23:03:30 2009 +0200

    ALSA: hda - Avoid invalid formats and rates with shared SPDIF
    
    Check whether formats and rates don't result in zero due to the
    restriction of SPDIF sharing.  If any of them can be zero, disable
    the SPDIF sharing mode instead.  Otherwise it will lead to a PCM
    configuration error.
    
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

commit ab0fd1debe730ec9998678a0c53caefbd121ed10
Author: Tejun Heo <tj@kernel.org>
Date:   Fri Jul 3 12:56:18 2009 +0200

    block: don't merge requests of different failfast settings
    
    Block layer used to merge requests and bios with different failfast
    settings.  This caused regular IOs to fail prematurely when they were
    merged into failfast requests for readahead.
    
    Niel Lambrechts could trigger the problem semi-reliably on ext4 when
    resuming from STR.  ext4 uses readahead when reading inodes and
    combined with the deterministic extra SATA PHY exception cycle during
    resume on the specific configuration, non-readahead inode read would
    fail causing ext4 errors.  Please read the following thread for
    details.
    
      http://lkml.org/lkml/2009/5/23/21
    
    This patch makes block layer reject merging if the failfast settings
    don't match.  This is correct but likely to lower IO performance by
    preventing regular IOs from mingling into surrounding readahead
    requests.  Changes to allow such mixed merges and handle errors
    correctly will be added later.
    
    Signed-off-by: Tejun Heo <tj@kernel.org>
    Reported-by: Niel Lambrechts <niel.lambrechts@gmail.com>
    Cc: Theodore Tso <tytso@mit.edu>
    Signed-off-by: Jens Axboe <axboe@carl.(none)>

commit b59e64d0ddb756af57ea032383bfd393a286a8e8
Author: Hannes Reinecke <hare@suse.de>
Date:   Thu Jul 2 22:02:06 2009 +0200

    cciss: Ignore stale commands after reboot
    
    When doing an unexpected shutdown like kexec the cciss
    firmware might still have some commands in flight, which
    it is trying to complete.
    The driver is doing it's best on resetting the HBA,
    but sadly there's a firmware issue causing the firmware
    _not_ to abort or drop old commands.
    So the firmware will send us commands which we haven't
    accounted for, causing the driver to panic.
    
    With this patch we're just ignoring these commands as
    there is nothing we could be doing with them anyway.
    
    Signed-off-by: Hannes Reinecke <hare@suse.de>
    Acked-by: Mike Miller <mike.miller@hp.com>
    Signed-off-by: Jens Axboe <axboe@carl.(none)>

commit baf922780251d12bc1c24c83df60c4c278abb745
Author: Ralf Baechle <ralf@linux-mips.org>
Date:   Fri Jul 3 07:11:15 2009 +0100

    MIPS: Fix CONFIG_FLATMEM version of pfn_valid()
    
    For systems which do not define PHYS_OFFSET as 0 pfn_valid() may falsely
    have returned 0 on most configurations.  Bug introduced by commit
    752fbeb2e3555c0d236e992f1195fd7ce30e728d (linux-mips.org) rsp.
    6f284a2ce7b8bc49cb8455b1763357897a899abb (kernel.org) titled "[MIPS]
    FLATMEM: introduce PHYS_OFFSET."
    
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit 01a6221a6a51ec47b9ae3ed42c396f98dd488c7e
Author: David Daney <ddaney@caviumnetworks.com>
Date:   Mon Jun 29 17:18:51 2009 -0700

    MIPS: Reorganize Cavium OCTEON PCI support.
    
    Move the cavium PCI files to the arch/mips/pci directory.  Also cleanup
    comment formatting and code layout.  Code from pci-common.c, was moved
    into other files.
    
    Signed-off-by: David Daney <ddaney@caviumnetworks.com>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit ada8e9514b5880f81cdbbd212d121380ceef7acc
Author: Yoichi Yuasa <yuasa@linux-mips.org>
Date:   Fri Jul 3 00:39:38 2009 +0900

    Update Yoichi Yuasa's e-mail address
    
    Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit 3f5b3e17f791ba27f91fc4fdc514e7704d4d6273
Author: Ralf Baechle <ralf@linux-mips.org>
Date:   Thu Jul 2 11:48:07 2009 +0100

    MIPS: Allow suspend and hibernation again on uniprocessor kernels.
    
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
    Acked-by: Pavel Machek <pavel@ucw.cz>

commit cad9bc69048b073023366ebb0878c1dd64a2c4d9
Author: Yong Zhang <yong.zhang@windriver.com>
Date:   Wed Jul 1 09:35:39 2009 +0800

    MIPS: 64-bit: Fix o32 core dump
    
    If an o32 process generates a core dump on a 64 bit kernel, the core file
    will not be correctly recognized. This is because ELF_CORE_COPY_REGS and
    ELF_CORE_COPY_TASK_REGS are not correctly defined for o32 and will use
    the default register set which would be CONFIG_64BIT in asm/elf.h.
    
    So we'll switch to use the right register defines in this situation by
    checking for WANT_COMPAT_REG_H and use the right defines of
    ELF_CORE_COPY_REGS and ELF_CORE_COPY_TASK_REGS.
    
    [Ralf: made ELF_CORE_COPY_TASK_REGS() bullet-proof against funny arguments.]
    
    Signed-off-by: Yong Zhang <yong.zhang@windriver.com>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit ea4bbfd0048c53c24f72ef668b39f1247bc243c0
Author: matthieu castet <castet.matthieu@free.fr>
Date:   Tue Jun 30 23:04:55 2009 +0200

    MIPS: BC47xx: Fix SSB irq setup
    
    The current ssb irq setup in ssb_mipscore_init has the problem that it
    configures some device on some irq without checking that the irq is not
    taken by an other device.
    
    For example in my case PCI host is on irq 0 and IPSEC on irq 3.
    The current code:
      - store in dev->irq that IPSEC irq is 3 + 2
      - do a set_irq 0->3 on PCI host
    
    But now IPSEC irq is not routed anymore to the mips code and dev->irq is
    wrong.  This causes a problem described in [1].
    
    This patch tries to solve the problem by making set_irq configure the
    device we want to take the irq on the shared irq0. The previous example
    becomes:
      - store in dev->irq that IPSEC irq is 3 + 2
      - do a set_irq 0->3 on PCI host:
      - irq 3 is already taken by IPSEC. do a set_irq 3->0 on IPSEC
    
    I also added some code to print the irq configuration after irq setup to
    allow easier debugging. And I add extra checking in ssb_mips_irq to report
    device without irq or device with not routed irq.
    
    [1] http://www.danm.de/files/src/bcm5365p/REPORTED_DEVICES
    
    Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr>
    Acked-by : Michael Buesch <mb@bu3sch.de>
    Tested-by: Florian Fainelli <florian@openwrt.org>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit eb9b5141a9815ef898ef6b6441f733e81c272600
Author: Tim Anderson <tanderson@mvista.com>
Date:   Wed Jun 17 16:40:34 2009 -0700

    MIPS: CMP: Update sync-r4k for current kernel
    
    This revises the sync-4k so it will boot and operate since the removal of
    expirelo from the timer code.
    
    Signed-off-by: Tim Anderson <tanderson@mvista.com>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit 47b178bb69ea4d0043f2df509c714bc5b287f375
Author: Tim Anderson <tanderson@mvista.com>
Date:   Wed Jun 17 16:25:18 2009 -0700

    MIPS: CMP: Move gcmp_probe to before the SMP ops
    
    This is to move the gcmp_probe call to before the use of and selection of
    the smp_ops functions. This allows malta with 1004K to work.
    
    Signed-off-by: Tim Anderson <tanderson@mvista.com>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit 0365070f05f12f1648b4adf22cfb52ec7a8a371c
Author: Tim Anderson <tanderson@mvista.com>
Date:   Wed Jun 17 16:22:53 2009 -0700

    MIPS: CMP: activate CMP support
    
    Most of the CMP support was added before, this mostly correct compile
    problems but adds a platform specific translation for the interrupt number
    based on cpu number.
    
    Signed-off-by: Tim Anderson <tanderson@mvista.com>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit a214cef9a5d06894785dca1f967c9c324cc84c17
Author: Tim Anderson <tanderson@mvista.com>
Date:   Wed Jun 17 16:22:25 2009 -0700

    MIPS: CMP: Extend IPI handling to CPU number
    
    This takes the current IPI interrupt assignment from the fix number of 4
    to the number of CPUs defined in the system.
    
    Signed-off-by: Tim Anderson <tanderson@mvista.com>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit 9306c8def6abc2dbde4ac75eb6c631606b8fc1dd
Author: Tim Anderson <tanderson@mvista.com>
Date:   Wed Jun 17 16:21:19 2009 -0700

    MIPS: CMP: Extend the GIC IPI interrupts beyond 32
    
    This patch extends the GIC interrupt handling beyond the current 32 bit
    range as well as extending the number of interrupts based on the number
    of CPUs.
    
    Signed-off-by: Tim Anderson <tanderson@mvista.com>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit b53d4d1f8d522342e66f79b8b49a19835071fed4
Author: David Daney <ddaney@caviumnetworks.com>
Date:   Mon Jun 29 09:54:15 2009 -0700

    MIPS: Define __arch_swab64 for all mips r2 cpus
    
    Some CPUs implement mipsr2, but because they are a super-set of mips64r2 do
    not define CONFIG_CPU_MIPS64_R2.  Cavium OCTEON falls into this category.
    We would still like to use the optimized implementation, so since we have
    already checked for CONFIG_CPU_MIPSR2, checking for CONFIG_64BIT instead of
    CONFIG_CPU_MIPS64_R2 is sufficient.
    
    Signed-off-by: David Daney <ddaney@caviumnetworks.com>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit 27fdd325dace4a1ebfa10e93ba6f3d25f25df674
Author: Yoichi Yuasa <yyuasa@linux.com>
Date:   Mon Jun 29 11:11:05 2009 +0900

    MIPS: Update VR41xx GPIO driver to use gpiolib
    
    Signed-off-by: Yoichi Yuasa <yyuasa@linux.com>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit 69f16c9a8630edc64cb1d6f1bfca4ee7bc16279f
Author: David Daney <ddaney@caviumnetworks.com>
Date:   Fri Jun 26 09:53:57 2009 -0700

    MIPS: Hookup new syscalls sys_rt_tgsigqueueinfo and sys_perf_counter_open.
    
    [Ralf: I fixed up the numbering in the comment in scall64-n32.S.]
    
    Signed-off-by: David Daney <ddaney@caviumnetworks.com>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit d7e014db374d987c6bcff0b9abab2c6796f8e793
Author: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Date:   Fri Jun 26 19:59:25 2009 +0300

    MIPS: Malta: Remove unnecessary function prototypes
    
    Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit 52a7a27cd8f6c57817da99fef019e37b9c303c4e
Author: Joe Perches <joe@perches.com>
Date:   Sun Jun 28 09:26:09 2009 -0700

    MIPS: MT: Remove unnecessary semicolons
    
    Signed-off-by: Joe Perches <joe@perches.com>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit 7ca5dc145bc7daddd8aed8bbda46b74af9cebefc
Author: Florian Fainelli <florian@openwrt.org>
Date:   Wed Jun 24 11:12:57 2009 +0200

    MIPS: Add support for Texas Instruments AR7 System-on-a-Chip
    
    This patch adds support for the Texas Instruments AR7 System-on-a-Chip.
    It supports the TNETD7100, 7200 and 7300 versions of the SoC.
    
    Signed-off-by: Matteo Croce <matteo@openwrt.org>
    Signed-off-by: Felix Fietkau <nbd@openwrt.org>
    Signed-off-by: Eugene Konev <ejka@openwrt.org>
    Signed-off-by: Nicolas Thill <nico@openwrt.org>
    Signed-off-by: Florian Fainelli <florian@openwrt.org>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

commit 033a666ccb842ab4134fcd0c861d5ba9f5d6bf3a
Author: David Howells <dhowells@redhat.com>
Date:   Thu Jul 2 14:35:32 2009 +0100

    NFSD: Don't hold unrefcounted creds over call to nfsd_setuser()
    
    nfsd_open() gets an unrefcounted pointer to the current process's effective
    credentials at the top of the function, then calls nfsd_setuser() via
    fh_verify() - which may replace and destroy the current process's effective
    credentials - and then passes the unrefcounted pointer to dentry_open() - but
    the credentials may have been destroyed by this point.
    
    Instead, the value from current_cred() should be passed directly to
    dentry_open() as one of its arguments, rather than being cached in a variable.
    
    Possibly fh_verify() should return the creds to use.
    
    This is a regression introduced by
    745ca2475a6ac596e3d8d37c2759c0fbe2586227 "CRED: Pass credentials through
    dentry_open()".
    
    Signed-off-by: David Howells <dhowells@redhat.com>
    Tested-and-Verified-By: Steve Dickson <steved@redhat.com>
    Cc: stable@kernel.org
    Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

commit aa202455eec51699e44f658530728162cefa1307
Author: Takashi Iwai <tiwai@suse.de>
Date:   Fri Jul 3 15:00:54 2009 +0200

    ALSA: hda - Improve ASUS eeePC 1000 mixer
    
    The mixer elements created for ASUS eeePC 1000 with ALC269 aren't
    standard but strange words like "LineOut".  Rename the element names
    to follow the standard one like "Headphone" and "Speaker".
    Also, split the volumes to each so that the virtual master can control
    them.
    
    The alc269_fujitsu_mixer is removed because it's now identical with
    the new eeepc mixer.
    
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

commit 099db17e66294b02814dee01c81d9abbbeece93e
Author: Takashi Iwai <tiwai@suse.de>
Date:   Thu Jul 2 16:10:23 2009 +0200

    ALSA: hda - Add GPIO1 control at muting with HP laptops
    
    HP laptops with AD1984A codecs (at least mobile models) need to set
    GPIO1 appropriately to indicate the mute state.  The BIOS checks this
    bit to judge whether the mute on or off is sent via F8 key.
    Without changing this bit, the BIOS can be confused and may toggle
    the mute wrongly.
    
    Reference: Novell bnc#515266
    	https://bugzilla.novell.com/show_bug.cgi?id=515266
    
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

commit 1c90ea2c7eb3b24a07a2f82164323588fb029bc1
Author: Daniel Ribeiro <drwyrm@gmail.com>
Date:   Tue Jun 23 12:30:58 2009 -0300

    mfd: fix pcap adc locking
    
    Release the lock on error.
    
    Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
    Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

commit 992bb253cd6f08129edcb42b90e6c388ebf605f8
Author: Jiri Slaby <jirislaby@gmail.com>
Date:   Mon Jun 22 00:00:02 2009 +0200

    mfd: sm501, fix lock imbalance
    
    Add omitted unlock in sm501_unit_power.
    
    Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
    Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

commit 64daa4435a40aa1b7d0ece598ae783b89dda13ee
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Thu Jul 2 13:10:29 2009 -0400

    parisc: use generic atomic64 on 32-bit
    
    Somewhat redundant since our atomic_t uses hashed-locks on 32-bit
    anyway... Maybe we can clean those up to be generic too someday.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 0c5cb79198d80eaea273f3e91cb418d559f13462
Author: Alexander Beregalov <a.beregalov@gmail.com>
Date:   Thu Apr 16 14:45:59 2009 +0000

    parisc: superio: fix build breakage
    
    Usage of parport_pc_probe_port was changed in 28783eb52
    (parport: Fix various uses of parport_pc).
    
    It introduced this build error:
    drivers/parisc/superio.c: In function 'superio_parport_init':
    drivers/parisc/superio.c:437: error: too few arguments to function
    				'parport_pc_probe_port'
    
    Fix it.
    
    Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit ca0844e347cf0fc9719c825ea1959501117b7f89
Author: Matthew Wilcox <matthew@wil.cx>
Date:   Fri Jun 26 17:44:18 2009 +0000

    parisc: Fix PCI resource allocation on non-PAT SBA machines
    
    We weren't marking the resources as memory resources, so they weren't
    being found by pci_claim_resource().
    
    Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
    Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 2d4618dce6a318ff4ec78dfe492cc3793015d540
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Tue Jun 23 21:38:49 2009 -0400

    parisc: perf: wire up sys_perf_counter_open
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit abf1e11a0dcf5514139cb76ed8eb050107653abd
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Tue Jun 23 21:32:18 2009 -0400

    parisc: add task_pt_regs macro
    
    needed for perf_counters.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 538e23615fe78b6da151ef136e3f7c6ad1fda2c1
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Tue Jun 23 20:22:06 2009 -0400

    parisc: wire sys_perf_counter_open to sys_ni_syscall
    
    Reserve a syscall slot for sys_perf_counter_open.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 0d56d1aa0e756f077b700420c54e1a52140e73b4
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Tue Jun 23 13:11:22 2009 -0400

    parisc: inventory.c, fix bloated stack frame
    
    The pa_pdc_cell struct can be kmalloc'd, so do that
    instead.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 64a0cdb026666cd9911fa045b863fb1f0f255dd8
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Tue Jun 23 13:10:03 2009 -0400

    parisc: processor.c, fix bloated stack frame
    
    The pa_pdc_cell struct can be kmalloc'd, so do that instead.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 20dbc9f724e02c26e30d89cf50e7ce259ab46da4
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Tue Jun 23 11:51:43 2009 -0400

    parisc: fix compile warning in mm/init.c
    
    arch/parisc/mm/init.c: In function 'free_initmem':
    381: warning: passing argument 1 of 'memset' makes pointer from integer without a cast
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit c3301ab4fb64cf84321d35a8e94f68c94c816dc1
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Jun 23 11:47:07 2009 -0400

    parisc: remove dead code from sys_parisc32.c
    
    Unless I'm totally missing something get_fd_set32/set_fd_set32 are
    completely unused.
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Acked-by: Grant Grundler <grundler@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 4435607e986c792a8753f8850b570fdd80b21b10
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Tue Jun 23 11:40:37 2009 -0400

    parisc: wire up rt_tgsigqueueinfo
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit e82a3b75127188f20c7780bec580e148beb29da7
Author: Helge Deller <deller@gmx.de>
Date:   Tue Jun 16 20:51:48 2009 +0000

    parisc: ensure broadcast tlb purge runs single threaded
    
    The TLB flushing functions on hppa, which causes PxTLB broadcasts on the system
    bus, needs to be protected by irq-safe spinlocks to avoid irq handlers to deadlock
    the kernel. The deadlocks only happened during I/O intensive loads and triggered
    pretty seldom, which is why this bug went so long unnoticed.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    [edited to use spin_lock_irqsave on UP as well since we'd been locking there
     all this time anyway, --kyle]
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 84be31be3727d11b2a91781306b642e801c5a379
Author: Grant Grundler <grundler@parisc-linux.org>
Date:   Mon Jun 1 00:20:23 2009 +0000

    parisc: fix "delay!" timer handling
    
    Rewrote timer_interrupt() to properly handle the "delayed!" case.
    
    If we used floating point math to compute the number of ticks that had
    elapsed since the last timer interrupt, it could take up to 12K cycles
    (emperical!) to handle the interrupt. Existing code assumed it would
    never take more than 8k cycles. We end up programming Interval Timer
    to a value less than "current" cycle counter.  Thus have to wait until
    Interval Timer "wrapped" and would then get the "delayed!" printk that
    I moved below.
    
    Since we don't really know what the upper limit is, I prefer to read
    CR16 again after we've programmed it to make sure we won't have to
    wait for CR16 to wrap.
    
    Further, the printk was between reading CR16 (cycle couner) and writing CR16
    (the interval timer). This would cause us to continue to set the interval
    timer to a value that was "behind" the cycle counter. Rinse and repeat.
    So no printk's between reading CR16 and setting next interval timer.
    
    Tested on A500 (550 Mhz PA8600).
    
    Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
    Tested-by: Kyle McMartin <kyle@mcmartin.ca>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
    
    ----
    Kyle, Helge, and other parisc's,
    Please test on 32-bit before committing.
    I think I have it right but recognize I might not.
    
    TODO: I wanted to use "do_div()" in order to get both remainder
    and value back with one division op. That should help with the
    latency alot but can be applied seperately from this patch.
    
    thanks,
    grant

commit 87451d850c895470a122308086069b7c326c914b
Author: Randolph Chung <randolph@tausq.org>
Date:   Tue Jun 23 14:53:26 2009 +0000

    parisc: fix mismatched parenthesis in memcpy.c
    
    >>>> I think this is what was intended? Note that this patch may affect
    >>>> profiling.
    >>> it really should be
    >>>
    >>> -    if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
    >>> +    if (likely((t1 & (sizeof(unsigned int)-1)) == 0)) {
    >>>
    >>> randolph
    
    Reported-by: Roel Kluin <roel.kluin@gmail.com>
    Signed-off-by: Randolph Chung <tausq@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit e957f608f321a97a60d065bccd01949590eef52e
Author: Grant Grundler <grundler@parisc-linux.org>
Date:   Tue Jun 23 11:03:11 2009 -0400

    parisc: Fix gcc 4.4 warning in lba_pci.c
    
    gcc 4.4 warns about:
    drivers/parisc/lba_pci.c: In function 'lba_pat_resources':
    drivers/parisc/lba_pci.c:1099: warning: the frame size of 8280 bytes is larger than 4096 bytes
    
    The problem is we declare two large structures on the stack. They don't need
    to be on the stack since they are only used during LBA initialization (which
    is serialized). Moving to be "static".
    
    Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit ebc30a0f67a4d6a9470556f4311478b3b04c2b1f
Author: Coly Li <coly.li@suse.de>
Date:   Thu Apr 30 22:43:46 2009 +0000

    parisc: add parameter to read_cr16()
    
    This patch modifies parameter of au1x_counter1_read() from 'void' to 'struct
    clocksource *cs', which fixes compile warning for incompatible parameter type.
    
    Signed-off-by: Coly Li <coly.li@suse.de>
    Signed-off-by: Helge Deller <deller@gmx.de>
    Cc: Ingo Molnar <mingo@elte.hu>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit e9b2601073aa57ffde7259afbe86f405060058e3
Author: Alexander Beregalov <a.beregalov@gmail.com>
Date:   Mon Apr 6 09:29:58 2009 +0000

    parisc: decode_exc.c should include kernel.h
    
    Fix this build error:
    arch/parisc/math-emu/decode_exc.c:351: undefined reference to `printk'
    
    Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit dfe07565021959f0f646e9e775810c1bfbe0f6d6
Author: Thomas Gleixner <tglx@linutronix.de>
Date:   Wed Jun 10 19:56:04 2009 +0000

    parisc: remove obsolete hw_interrupt_type
    
    The defines and typedefs (hw_interrupt_type, no_irq_type, irq_desc_t) have
    been kept around for migration reasons.  After more than two years it's
    time to remove them finally.
    
    This patch cleans up one of the remaining users.  When all such patches
    hit mainline we can remove the defines and typedefs finally.
    
    Impact: cleanup
    
    Convert the last remaining users to struct irq_chip and remove the
    define.
    
    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 47b4150baa003fb83b93365f3eadd4c373e4fa6c
Author: Helge Deller <deller@gmx.de>
Date:   Sat Jun 6 21:54:28 2009 +0000

    parisc: fix irq compile bugs in arch/parisc/kernel/irq.c
    
    Fix miscompilation in arch/parisc/kernel/irq.c:
    123: warning: passing arg 1 of `cpumask_setall' from incompatible pointer type
    141: warning: passing arg 1 of `cpumask_copy' from incompatible pointer type
    300: warning: passing arg 1 of `cpumask_copy' from incompatible pointer type
    357: warning: passing arg 2 of `cpumask_copy' from incompatible pointer type
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit fed99b1e86f5ff4f1b41e37264bb869da67d3174
Author: Grant Grundler <grundler@parisc-linux.org>
Date:   Mon Apr 20 04:28:22 2009 +0000

    parisc: advertise PCI devs after "assign_resources"
    
    Alex Chiang asked me why PARISC was calling pci_bus_add_devices()
    and pci_bus_assign_resources() in the opposite order from everyone else.
    No reason and I couldn't see any data dependency.
    Patch below applies cleanly to 2.6.30-rc2.
    
    Later, I suspected the code worked only because no drivers would be
    loaded/ready until much later in the system initialization sequence.
    
    Tested "LBA" code on J6000 (32-bit) and A500 (64-bit SMP) with 2.6.30-rc2.
    Not tested with any Dino controllers.
    Not tested with PCI-PCI Bridge (TBD).
    
    Reported-by: Alex Chiang <achiang@hp.com>
    Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 7d17e2763129ea307702fcdc91f6e9d114b65c2d
Author: Helge Deller <deller@gmx.de>
Date:   Thu Apr 30 21:39:45 2009 +0000

    parisc: fix ldcw inline assembler
    
    There are two reasons to expose the memory *a in the asm:
    
    1) To prevent the compiler from discarding a preceeding write to *a, and
    2) to prevent it from caching *a in a register over the asm.
    
    The change has had a few days testing with a SMP build of 2.6.22.19
    running on a rp3440.
    
    This patch is about the correctness of the __ldcw() macro itself.
    The use of the macro should be confined to small inline functions
    to try to limit the effect of clobbering memory on GCC's optimization
    of loads and stores.
    
    Signed-off-by: Dave Anglin <dave.anglin@nrc-cnrc.gc.ca>
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 4fb11781a044552dded5342e1a78cf92a74683db
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Sun Apr 5 02:53:47 2009 +0000

    parisc: kill WARN in free_initmem when DEBUG_KERNEL
    
    Doing an IPI with local interrupts off triggers a warning. We
    don't need to be quite so ridiculously paranoid. Also, clean up
    a bit of the code a little.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 692c14a5931341a37e4fbfca5fa96751187a108f
Author: Bastian Blank <waldi@debian.org>
Date:   Sat Apr 4 20:54:26 2009 +0000

    parisc: Remove casts from atomic macros
    
    The atomic operations on parisc are defined as macros. The macros
    includes casts which disallows the use of some syntax elements and
    produces error like this:
    
    net/phonet/pep.c: In function 'pipe_rcv_status':
    net/phonet/pep.c:262: error: lvalue required as left operand of assignment
    
    The patch removes this superfluous casts.
    
    Signed-off-by: Bastian Blank <waldi@debian.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 071327ec9005e9a826d088d37021ed2c88e683f7
Author: Alexander Beregalov <a.beregalov@gmail.com>
Date:   Fri Apr 3 01:49:22 2009 +0000

    parisc: remove CVS keywords
    
    Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
    Acked-by: Matthew Wilcox <willy@linux.intel.com>
    Acked-by: Grant Grundler <grundler@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 8d2d00ddeff2c2d1164d96e2d1b53e45ceb528c8
Author: Alexander Beregalov <a.beregalov@gmail.com>
Date:   Fri Apr 3 12:08:54 2009 +0000

    parisc: ccio-dma: fix build failure without procfs
    
    Fix this build error when CONFIG_PROC_FS is not set:
    drivers/parisc/ccio-dma.c:1574: error: 'ccio_proc_info_fops' undeclared
    
    Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 17085a934592585bd878884dee04b850a367be10
Author: Alexander Beregalov <a.beregalov@gmail.com>
Date:   Fri Apr 3 13:33:32 2009 +0000

    parisc: stifb: should depend on STI_CONSOLE
    
    Fix this build error when CONFIG_STI_CONSOLE is not set
    drivers/video/stifb.c:1337: undefined reference to `sti_get_rom'
    
    Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 90eab5e09de20e8d991bbb11f6edfb573f906352
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Mon Apr 27 08:29:12 2009 -0400

    parisc: wire up preadv/pwritev syscalls
    
    Generic compat handlers look appropriate, so use those.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 746a99a5af60ee676afa2ba469ccd1373493c7e7
Merge: 5291a12f0503e31e0b8e90ee8e4997d59c1c3aad bdae997f44535ac4ebe1e055ffe59eeee946f453
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Thu Jul 2 16:54:07 2009 -0700

    Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify
    
    * 'for-linus' of git://git.infradead.org/users/eparis/notify:
      fs/notify/inotify: decrement user inotify count on close

commit 5291a12f0503e31e0b8e90ee8e4997d59c1c3aad
Merge: c7cba0623fc17fe766063d492810632366790763 68f5a38c3ea4ae9cc7a40f86ff6d6d031583d93a
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Thu Jul 2 16:52:38 2009 -0700

    Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
    
    * git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
      Btrfs: fix error message formatting
      Btrfs: fix use after free in btrfs_start_workers fail path
      Btrfs: honor nodatacow/sum mount options for new files
      Btrfs: update backrefs while dropping snapshot
      Btrfs: account for space we may use in fallocate
      Btrfs: fix the file clone ioctl for preallocated extents
      Btrfs: don't log the inode in file_write while growing the file

commit c7cba0623fc17fe766063d492810632366790763
Merge: 405d7ca51597645f3be850574d6c10f01be11e8d a222ad1a4b2e3ca177a538482c99c519c1ce94d1
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Thu Jul 2 16:52:25 2009 -0700

    Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
    
    * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
      [SCSI] cxgb3i: fix connection error when vlan is enabled
      [SCSI] FC transport: Locking fix for common-code FC pass-through patch
      [SCSI] zalon: fix oops on attach failure
      [SCSI] fnic: use DMA_BIT_MASK(nn) instead of deprecated DMA_nnBIT_MASK
      [SCSI] fnic: remove redundant BUG_ONs and fix checks on unsigned
      [SCSI] ibmvscsi: Fix module load hang

commit 405d7ca51597645f3be850574d6c10f01be11e8d
Merge: 7c5371c403abb29f01bc6cff6c5096abdf2dc524 6a43e574c5af7d9bd084992b1c9c3cdbc3b6c0e9
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Thu Jul 2 16:51:09 2009 -0700

    Merge git://git.infradead.org/iommu-2.6
    
    * git://git.infradead.org/iommu-2.6: (38 commits)
      intel-iommu: Don't keep freeing page zero in dma_pte_free_pagetable()
      intel-iommu: Introduce first_pte_in_page() to simplify PTE-setting loops
      intel-iommu: Use cmpxchg64_local() for setting PTEs
      intel-iommu: Warn about unmatched unmap requests
      intel-iommu: Kill superfluous mapping_lock
      intel-iommu: Ensure that PTE writes are 64-bit atomic, even on i386
      intel-iommu: Make iommu=pt work on i386 too
      intel-iommu: Performance improvement for dma_pte_free_pagetable()
      intel-iommu: Don't free too much in dma_pte_free_pagetable()
      intel-iommu: dump mappings but don't die on pte already set
      intel-iommu: Combine domain_pfn_mapping() and domain_sg_mapping()
      intel-iommu: Introduce domain_sg_mapping() to speed up intel_map_sg()
      intel-iommu: Simplify __intel_alloc_iova()
      intel-iommu: Performance improvement for domain_pfn_mapping()
      intel-iommu: Performance improvement for dma_pte_clear_range()
      intel-iommu: Clean up iommu_domain_identity_map()
      intel-iommu: Remove last use of PHYSICAL_PAGE_MASK, for reserving PCI BARs
      intel-iommu: Make iommu_flush_iotlb_psi() take pfn as argument
      intel-iommu: Change aligned_size() to aligned_nrpages()
      intel-iommu: Clean up intel_map_sg(), remove domain_page_mapping()
      ...

commit 68f5a38c3ea4ae9cc7a40f86ff6d6d031583d93a
Author: Hu Tao <cnhutao@gmail.com>
Date:   Thu Jul 2 13:55:45 2009 -0400

    Btrfs: fix error message formatting
    
    Make an error msg look nicer by inserting a space between number and word.
    
    Signed-off-by: Hu Tao <hu.taoo@gmail.com>
    Signed-off-by: Jiri Kosina <jkosina@suse.cz>
    Signed-off-by: Chris Mason <chris.mason@oracle.com>

commit 9b627e9bf49ebfeb060dfae0435bdba06cf27cb8
Author: Jiri Slaby <jirislaby@gmail.com>
Date:   Thu Jul 2 13:50:58 2009 -0400

    Btrfs: fix use after free in btrfs_start_workers fail path
    
    worker memory is already freed on one fail path in btrfs_start_workers,
    but is still dereferenced. Switch the dereference and kfree.
    
    Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
    Signed-off-by: Chris Mason <chris.mason@oracle.com>

commit 9427216476d4fa75103f39d4b228c47d56ba20da
Author: Chris Mason <chris.mason@oracle.com>
Date:   Thu Jul 2 12:26:06 2009 -0400

    Btrfs: honor nodatacow/sum mount options for new files
    
    The btrfs attr patches unconditionally inherited the inode flags field
    without honoring nodatacow and nodatasum.  This fix makes sure
    we properly record the nodatacow/sum mount options in new inodes.
    
    Signed-off-by: Chris Mason <chris.mason@oracle.com>

commit 2c47e605a91dde6b0514f689645e7ab336c8592a
Author: Yan Zheng <zheng.yan@oracle.com>
Date:   Sat Jun 27 21:07:35 2009 -0400

    Btrfs: update backrefs while dropping snapshot
    
    The new backref format has restriction on type of backref item.  If a tree
    block isn't referenced by its owner tree, full backrefs must be used for the
    pointers in it. When a tree block loses its owner tree's reference, backrefs
    for the pointers in it should be updated to full backrefs. Current
    btrfs_drop_snapshot misses the code that updates backrefs, so it's unsafe for
    general use.
    
    This patch adds backrefs update code to btrfs_drop_snapshot.  It isn't a
    problem in the restricted form btrfs_drop_snapshot is used today, but for
    general snapshot deletion this update is required.
    
    Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
    Signed-off-by: Chris Mason <chris.mason@oracle.com>

commit a970b0a16cc416a509d5ae8b1d70978664e6f4fe
Author: Josef Bacik <jbacik@redhat.com>
Date:   Sat Jun 27 21:07:34 2009 -0400

    Btrfs: account for space we may use in fallocate
    
    Using Eric Sandeen's xfstest for fallocate, you can easily trigger a ENOSPC
    panic on btrfs.  This is because we do not account for data we may use when
    doing the fallocate.  This patch fixes the problem by properly reserving space,
    and then just freeing it when we are done.  The reservation stuff was made with
    delalloc in mind, so its a little crude for this case, but it keeps the box
    from panicing.
    
    Signed-off-by: Josef Bacik <jbacik@redhat.com>
    Signed-off-by: Chris Mason <chris.mason@oracle.com>

commit c8a894d77de4a1e0a544577fd4eabc9aacd453a8
Author: Chris Mason <chris.mason@oracle.com>
Date:   Sat Jun 27 21:07:03 2009 -0400

    Btrfs: fix the file clone ioctl for preallocated extents

commit f597bb19ccd034cbcf05e1194238e2c8d9505a8a
Author: Chris Mason <chris.mason@oracle.com>
Date:   Sat Jun 27 21:06:22 2009 -0400

    Btrfs: don't log the inode in file_write while growing the file

commit dbe45d0ce394732cc06187e929697fc0fb16aa53
Merge: 4413c8d2be530d7310feaceaae28350b316b2068 826390796d09444b93e1f957582f8970ddfd9b3d
Author: Takashi Iwai <tiwai@suse.de>
Date:   Thu Jul 2 17:48:34 2009 +0200

    Merge branch 'fix/oxygen' into for-linus
    
    * fix/oxygen:
      sound: virtuoso: fix Xonar D1/DX silence after resume

commit 4413c8d2be530d7310feaceaae28350b316b2068
Merge: cfbc78003e2b12e60a1d594ce192c30aea44eb2a ff84847171508a3c76eb7e483204d1be7738729b
Author: Takashi Iwai <tiwai@suse.de>
Date:   Thu Jul 2 17:48:33 2009 +0200

    Merge branch 'fix/hda' into for-linus
    
    * fix/hda:
      ALSA: hda - Add quirk for HP 6930p
      ALSA: hda - Add missing static to patch_ca0110()

commit cfbc78003e2b12e60a1d594ce192c30aea44eb2a
Merge: dc8a4f3fc3c32954c9fd46cb027b959380be2d65 3f5d3465be8f6e04f43d9b6d543fe28d4be07d78
Author: Takashi Iwai <tiwai@suse.de>
Date:   Thu Jul 2 17:48:32 2009 +0200

    Merge branch 'fix/caiaq' into for-linus
    
    * fix/caiaq:
      ALSA: usx2y - reparent sound device
      ALSA: snd_usb_caiaq: reparent sound device

commit dc8a4f3fc3c32954c9fd46cb027b959380be2d65
Merge: 9ea5ca75a2aebb7172094a7d77acf6ff7600cc56 da9ff1f796e81976935407251815838bef9868d4
Author: Takashi Iwai <tiwai@suse.de>
Date:   Thu Jul 2 17:48:31 2009 +0200

    Merge branch 'fix/asoc' into for-linus
    
    * fix/asoc:
      ASoC: Only disable pxa2xx-i2s clocks if we enabled them
      ASoC: OMAP: fix OMAP1510 broken PCM pointer callback
      ASoC: remove BROKEN from Efika and pcm030 fabric drivers
      ASoC: Fix typo in MPC5200 PSC AC97 driver Kconfig

commit bdae997f44535ac4ebe1e055ffe59eeee946f453
Author: Keith Packard <keithp@keithp.com>
Date:   Wed Jul 1 21:56:38 2009 -0700

    fs/notify/inotify: decrement user inotify count on close
    
    The per-user inotify_devs value is incremented each time a new file is
    allocated, but never decremented. This led to inotify_init failing after a
    limited number of calls.
    
    Signed-off-by: Keith Packard <keithp@keithp.com>
    Signed-off-by: Eric Paris <eparis@redhat.com>

commit 6a43e574c5af7d9bd084992b1c9c3cdbc3b6c0e9
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Thu Jul 2 12:02:34 2009 +0100

    intel-iommu: Don't keep freeing page zero in dma_pte_free_pagetable()
    
    Check dma_pte_present() and only free the page if there _is_ one.
    Kind of surprising that there was no warning about this.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 75e6bf9638992dfc0fec9c3ca10444c8e0d6a638
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Thu Jul 2 11:21:16 2009 +0100

    intel-iommu: Introduce first_pte_in_page() to simplify PTE-setting loops
    
    On Wed, 2009-07-01 at 16:59 -0700, Linus Torvalds wrote:
    > I also _really_ hate how you do
    >
    >         (unsigned long)pte >> VTD_PAGE_SHIFT ==
    >         (unsigned long)first_pte >> VTD_PAGE_SHIFT
    
    Kill this, in favour of just looking to see if the incremented pte
    pointer has 'wrapped' onto the next page. Which means we have to check
    it _after_ incrementing it, not before.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 3f5d3465be8f6e04f43d9b6d543fe28d4be07d78
Author: Takashi Iwai <tiwai@suse.de>
Date:   Thu Jul 2 11:51:44 2009 +0200

    ALSA: usx2y - reparent sound device
    
    Fix the parent device to be the USB interface, not the USB device.
    A similiar commit like 563c2bf59d392357bcc1d99642933cc88c687964.
    
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

commit 563c2bf59d392357bcc1d99642933cc88c687964
Author: Daniel Mack <daniel@caiaq.de>
Date:   Thu Jul 2 10:46:35 2009 +0200

    ALSA: snd_usb_caiaq: reparent sound device
    
    The sound device instance needs to be a child of the USB interface, not
    the USB device. Newer udev versions pay attention to that.
    
    Signed-off-by: Daniel Mack <daniel@caiaq.de>
    Reported-by: Lennart Poettering <lennart@poettering.net>
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

commit 826390796d09444b93e1f957582f8970ddfd9b3d
Author: Clemens Ladisch <clemens@ladisch.de>
Date:   Thu Jul 2 08:31:30 2009 +0200

    sound: virtuoso: fix Xonar D1/DX silence after resume
    
    When resuming, we better take the DACs out of the reset state before
    trying to use them.
    
    Reference: kernel bug #13599
    	http://bugzilla.kernel.org/show_bug.cgi?id=13599
    
    Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
    Cc: <stable@kernel.org>
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

commit 7766a3fb905f0b078b05f5d6a6be8df4c64b9f51
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Wed Jul 1 20:27:03 2009 +0100

    intel-iommu: Use cmpxchg64_local() for setting PTEs
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 85b98276f2ffa66b25ae6328b00bfadfd74b74e7
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Wed Jul 1 19:27:53 2009 +0100

    intel-iommu: Warn about unmatched unmap requests
    
    This would have found the bug in i386 pci_unmap_addr() a long time ago.
    We shouldn't just silently return without doing anything.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 206a73c102fc480ba072a9388bc2142c303113aa
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Wed Jul 1 19:30:28 2009 +0100

    intel-iommu: Kill superfluous mapping_lock
    
    Since we're using cmpxchg64() anyway (because that's the only way to do
    an atomic 64-bit store on i386), we might as well ditch the extra
    locking and just use cmpxchg64() to ensure that we don't add the page
    twice.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit c85994e4771025ef2a66533eb1a4c6c2217b9cda
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Wed Jul 1 19:21:24 2009 +0100

    intel-iommu: Ensure that PTE writes are 64-bit atomic, even on i386
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 3238c0c4d68d9a9022b411a11a4b933fbdb53a14
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Wed Jul 1 18:56:16 2009 +0100

    intel-iommu: Make iommu=pt work on i386 too
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit da9ff1f796e81976935407251815838bef9868d4
Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date:   Wed Jul 1 18:23:26 2009 +0100

    ASoC: Only disable pxa2xx-i2s clocks if we enabled them
    
    The clock API can't cope with unbalanced enables and disables and
    we only enable in hw_params() but try to disable in shutdown.
    
    Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

commit ff84847171508a3c76eb7e483204d1be7738729b
Author: Takashi Iwai <tiwai@suse.de>
Date:   Wed Jul 1 18:08:01 2009 +0200

    ALSA: hda - Add quirk for HP 6930p
    
    Added a quirk model=laptop for HP 6930p (103c:30dc) with AD1984A codec.
    
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

commit 1e1689536f346a431b748dc8ad9ac0828d2c065d
Author: Takashi Iwai <tiwai@suse.de>
Date:   Wed Jul 1 08:34:32 2009 +0200

    ALSA: hda - Add missing static to patch_ca0110()
    
    Signed-off-by: Takashi Iwai <tiwai@suse.de>

commit 1bdd7419910c1506151e7b9e2d60c6980e015f76
Author: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Date:   Sun Jun 28 00:21:05 2009 +0200

    ASoC: OMAP: fix OMAP1510 broken PCM pointer callback
    
    This patch tries to work around the problem of broken OMAP1510 PCM playback
    pointer calculation by replacing DMA function call that incorrectly tries to
    read the value form DMA hardware with a value computed locally from an
    already maintained variable omap_runtime_data.period_index.
    
    Tested on OMAP5910 based Amstrad Delta (E3) using work in progress ASoC
    driver.
    
    Based on linux-2.6-asoc.git v2.6.31-rc1.
    
    Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
    Acked-by: Jarkko Nikula <jhnikula@gmail.com>
    Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
    Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

commit 40d9ec14e7e1f62d2379ecc1b5ee00ddfc2a5d0c
Author: Grant Likely <grant.likely@secretlab.ca>
Date:   Sun Jun 28 01:42:06 2009 -0600

    ASoC: remove BROKEN from Efika and pcm030 fabric drivers
    
    The needed spin_event_timeout() macro is now merged in from the
    powerpc tree, so these drivers are no longer broken.  This reverts
    commit 0c0e09e21a9e7bc6ca54e06ef3d497255ca26383 (ASoC: Mark MPC5200
    AC97 as BROKEN until PowerPC merge issues are resolved)
    
    Tested against 2.6.31-rc1.
    
    Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
    Acked-by: Jon Smirl <jonsmirl@gmail.com>
    Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

commit 6a84c234da06a4ac0c1b4c819b83cf264674c2d8
Author: Grant Likely <grant.likely@secretlab.ca>
Date:   Sun Jun 28 01:41:52 2009 -0600

    ASoC: Fix typo in MPC5200 PSC AC97 driver Kconfig
    
    ALSA SoC drivers should be specify SND_SOC_AC97_BUS instead, not AC97_BUS.
    Without SND_SOC_AC97_BUS defined, an AC97 device will not get correctly
    registered on the AC97 bus, which prevents thinks like the WM9712
    touchscreen driver from getting probed.
    
    Tested against 2.6.31-rc1.
    
    Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
    Acked-by: Jon Smirl <jonsmirl@gmail.com>
    Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

commit f3a0a52fff4dbfdea2dccc908d00c038481d888e
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Tue Jun 30 03:40:07 2009 +0100

    intel-iommu: Performance improvement for dma_pte_free_pagetable()
    
    As with other functions, batch the CPU data cache flushes and don't keep
    recalculating PTE addresses.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 3d7b0e4154b4963d6bd39991ec8eaa09caeb3994
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Tue Jun 30 03:38:09 2009 +0100

    intel-iommu: Don't free too much in dma_pte_free_pagetable()
    
    The loop condition was wrong -- we should free a PMD only if its
    _entire_ range is within the range we're intending to clear. The
    early-termination condition was right, but not the loop.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 1bf20f0dc5629032ddd07617139d9fbca66c1642
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Mon Jun 29 22:06:43 2009 +0100

    intel-iommu: dump mappings but don't die on pte already set
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 9051aa0268dc1c3e42cd79a802b0af1f2bfcadae
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Mon Jun 29 12:30:54 2009 +0100

    intel-iommu: Combine domain_pfn_mapping() and domain_sg_mapping()
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit e1605495c716ef4eebdb7606bcd1b593f28e2837
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Mon Jun 29 11:17:38 2009 +0100

    intel-iommu: Introduce domain_sg_mapping() to speed up intel_map_sg()
    
    Instead of calling domain_pfn_mapping() repeatedly with single or
    small numbers of pages, just pass the sglist in. It can optimise the
    number of cache flushes like domain_pfn_mapping() does, and gives a huge
    speedup for large scatterlists.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 875764de6f0ddb23d270c29357d5a339232a0488
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 21:20:51 2009 +0100

    intel-iommu: Simplify __intel_alloc_iova()
    
    There's no need for the separate iommu_alloc_iova() function, and
    certainly not for it to be global. Remove the underscores while we're at
    it.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 6f6a00e40aa3fdd3b29c30e3ef1fc9690506bc03
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 20:38:49 2009 +0100

    intel-iommu: Performance improvement for domain_pfn_mapping()
    
    As with dma_pte_clear_range(), don't keep flushing a single PTE at a
    time. And also micro-optimise the setting of PTE values rather than
    using the helper functions to do all the masking.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 310a5ab93cb4ce29367238f682affd9ac352f4d0
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 18:52:20 2009 +0100

    intel-iommu: Performance improvement for dma_pte_clear_range()
    
    It's a bit silly to repeatedly call domain_flush_cache() for each PTE
    individually, as we clear it. Instead, batch them up and flush a whole
    range at a time. We might as well refrain from recalculating the PTE
    address from scratch each time round the loop too.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit c5395d5c4a82159889cb650de93b591ea51d8c56
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 16:35:56 2009 +0100

    intel-iommu: Clean up iommu_domain_identity_map()
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 1a4a45516d7a57de0691352d899d7008f2e090d1
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 16:00:42 2009 +0100

    intel-iommu: Remove last use of PHYSICAL_PAGE_MASK, for reserving PCI BARs
    
    This is fairly broken anyway -- it doesn't take hotplug into account.
    We should probably be checking page_is_ram() instead.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 03d6a2461ab1704c171ce21081c5022378ef7a91
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 15:33:46 2009 +0100

    intel-iommu: Make iommu_flush_iotlb_psi() take pfn as argument
    
    Most of its callers are having to shift for themselves anyway, so we might
    as well do it in iommu_flush_iotlb_psi().
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 88cb6a7424d9465faf6caaaadff5af0766c93991
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 15:03:06 2009 +0100

    intel-iommu: Change aligned_size() to aligned_nrpages()
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit b536d24d212c994a7d98469ea3a8891573d45fd4
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 14:49:31 2009 +0100

    intel-iommu: Clean up intel_map_sg(), remove domain_page_mapping()
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit ad05122162b67f64d5a1c6d35e001f7a88619b88
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 14:22:28 2009 +0100

    intel-iommu: Use domain_pfn_mapping() in intel_iommu_map_range()
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 0ab36de274ab094c3992b50c9c48c5c89072ec94
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 14:01:43 2009 +0100

    intel-iommu: Use domain_pfn_mapping() in __intel_map_single()
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 61df744314079e8cb8cdec75f517cf0e704e41ef
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 11:55:58 2009 +0100

    intel-iommu: Introduce domain_pfn_mapping()
    
    ... and use it in the trivial cases; the other callers want individual
    (and bisectable) attention, since I screwed them up the first time...
    
    Make the BUG_ON() happen on too-large virtual address rather than
    physical address, too. That's the one we care about.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 1c5a46ed49e37f56f8aa9000bb1c2ac59670c372
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 10:53:37 2009 +0100

    intel-iommu: Clean up address handling in domain_page_mapping()
    
    No more masking and alignment; just use pfns.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit b026fd28ea23af24a3eea6e5be3f3d0193a8e87d
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 10:37:25 2009 +0100

    intel-iommu: Change addr_to_dma_pte() to pfn_to_dma_pte()
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 163cc52ccd2cc5c5ae4e1c886f6fde8547feed2a
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 00:51:17 2009 +0100

    intel-iommu: Clean up intel_iommu_unmap_range()
    
    Use unaligned address for domain->max_addr. That algorithm isn't ideal
    anyway -- we should probably just look at the last iova in the tree.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit d794dc9b302c2781c571c10dedb8094e223d31b8
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sun Jun 28 00:27:49 2009 +0100

    intel-iommu: Make dma_pte_free_pagetable() take pfns as argument
    
    With some cleanup of intel_unmap_page(), intel_unmap_sg() and
    vm_domain_exit() to no longer play with 64-bit addresses.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 6660c63a79a639b86e3a709e25a8c4fc3ab24770
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sat Jun 27 22:41:00 2009 +0100

    intel-iommu: Make dma_pte_free_pagetable() use pfns
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 595badf5d65d50300319e6178e6df005ea501f70
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sat Jun 27 22:09:11 2009 +0100

    intel-iommu: Make dma_pte_clear_range() take pfns as argument
    
    Noting that this is now an _inclusive_ range.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 04b18e65dd5a3e544f07f4bcfa8fb52704a1833b
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sat Jun 27 19:15:01 2009 +0100

    intel-iommu: Make dma_pte_clear_range() use pfns
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 66eae8469e4e4ba6f4ca7ef82103c78f6d645583
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sat Jun 27 19:00:32 2009 +0100

    intel-iommu: Don't just mask out too-big physical addresses; BUG() instead
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit a75f7cf94f01717c5103138319b96752ee2a2be9
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sat Jun 27 17:44:39 2009 +0100

    intel-iommu: Make dma_pte_clear_one() take pfn not address
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 90dcfb5eb2fd427b16135a14f176a6902750b6b4
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sat Jun 27 17:14:59 2009 +0100

    intel-iommu: Change dma_addr_level_pte() to dma_pfn_level_pte()
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit 77dfa56c94d2855a25ff552b74980a5538e129f8
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sat Jun 27 16:40:08 2009 +0100

    intel-iommu: Change address_level_offset() to pfn_level_offset()
    
    We're shifting the inputs for now, but that'll change...
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit dd4e831960e4f0214480fa96a53ca9bb7dd04927
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Sat Jun 27 16:21:20 2009 +0100

    intel-iommu: Change dma_set_pte_addr() to dma_set_pte_pfn()
    
    Add some helpers for converting between VT-d and normal system pfns,
    since system pages can be larger than VT-d pages.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit c7ab48d2acaf959e4d59c3f55d12fdb7ca9afd7c
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Fri Jun 26 19:10:36 2009 +0100

    intel-iommu: Clean up identity mapping code, remove CONFIG_DMAR_GFX_WA
    
    There's no need for the GFX workaround now we have 'iommu=pt' for the
    cases where people really care about performance. There's no need to
    have a special case for just one type of device.
    
    This also speeds up the iommu=pt path and reduces memory usage by
    setting up the si_domain _once_ and then using it for all devices,
    rather than giving each device its own private page tables.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit b213203e475212a69ad6fedfb73464087e317148
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Fri Jun 26 18:50:28 2009 +0100

    intel-iommu: Create new iommu_domain_identity_map() function
    
    We'll want to do this to a _domain_ (the si_domain) rather than a PCI device.
    
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit bf92df30df909710c498d05620e2df1be1ef779b
Author: Yu Zhao <yu.zhao@intel.com>
Date:   Mon Jun 29 11:31:45 2009 +0800

    intel-iommu: Only avoid flushing device IOTLB for domain ID 0 in caching mode
    
    In caching mode, domain ID 0 is reserved for non-present to present
    mapping flush. Device IOTLB doesn't need to be flushed in this case.
    
    Previously we were avoiding the flush for domain zero, even if the IOMMU
    wasn't in caching mode and domain zero wasn't special.
    
    Signed-off-by: Yu Zhao <yu.zhao@intel.com>
    Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

commit a222ad1a4b2e3ca177a538482c99c519c1ce94d1
Author: Karen Xie <kxie@chelsio.com>
Date:   Fri Jun 26 15:17:29 2009 -0700

    [SCSI] cxgb3i: fix connection error when vlan is enabled
    
    There is a bug when VLAN is configured on the cxgb3 interface, the iscsi
    conn. would be denied with message "cxgb3i: NOT going through cxgbi device."
    
    This patch adds code to get the real egress net_device when vlan is configured.
    
    Signed-off-by: Karen Xie <kxie@chelsio.com>
    Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
    Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

commit 112942353992d95099fb5b71c679ff1046fccfcf
Author: Amerigo Wang <amwang@redhat.com>
Date:   Fri Jun 19 03:40:26 2009 -0400

    kbuild: finally remove the obsolete variable $TOPDIR
    
    TOPDIR is obsolete, it can be finally removed now.
    
    Signed-off-by: WANG Cong <amwang@redhat.com>
    Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

commit c512d2544c688ff1fab18a530860a9c7440a71b7
Author: Jaswinder Singh Rajput <jaswinder@kernel.org>
Date:   Sat Jun 20 18:25:25 2009 +0530

    gitignore: ignore scripts/ihex2fw
    
    scripts/ihex2fw is a generated binary and should be ignored
    
    Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
    Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

commit a8735821d198675dd326cc5847e79df79c735119
Author: Floris Kraak <randakar@gmail.com>
Date:   Mon Jun 15 08:54:02 2009 +0300

    Kbuild: Disable the -Wformat-security gcc flag
    
    Some distributions have enabled the gcc flag -Wformat-security by default.
    This results in a number of warnings about format arguments to functions,
    sometimes in cases where fixing the warning is not likely to actually fix a
    bug.  Instead of hand patching a dozens of places (possibly more) that produce
    warnings that get ignored anyway we just turn off the flag in the Makefile.
    
    Signed-off-by: Floris Kraak <randakar@gmail.com>
    Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
    Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

commit 7a6b1f1c0c492a6bb6f778dff0f9f5facb90d1a1
Author: Amerigo Wang <xiyou.wangcong@gmail.com>
Date:   Mon Jun 22 17:18:32 2009 +0800

    gitignore: ignore gcov output files
    
    Ignore *.gcno files which are generated by gcov.
    
    Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
    Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

commit 1ab18486e4e8bf9554d8439207b97422d7466d77
Author: maximilian attems <max@stro.at>
Date:   Fri Jun 26 20:04:36 2009 +0200

    kbuild: deb-pkg ship changelog
    
    In the series for 2.6.31 it was noticed to ship the copyright,
    but the generated changelog got lost somehow.
    
    As bonus the generated linux-image deb packages are Lenny lintian clean.
    
    Cc: Frans Pop <elendil@planet.nl>
    Cc: Andres Salomon <dilinger@debian.org>
    Signed-off-by: maximilian attems <max@stro.at>
    Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

commit 857eceebd2803c9a3459f784acf45e5266921e4d
Author: Tim Abbott <tabbott@ksplice.com>
Date:   Tue Jun 23 19:59:36 2009 -0400

    Add new __init_task_data macro to be used in arch init_task.c files.
    
    This patch is preparation for replacing most ".data.init_task" in the
    kernel with macros, so that the section name can later be changed
    without having to touch a lot of the kernel.
    
    The long-term goal here is to be able to change the kernel's magic
    section names to those that are compatible with -ffunction-sections
    -fdata-sections.  This requires renaming all magic sections with names
    of the form ".data.foo".
    
    Signed-off-by: Tim Abbott <tabbott@ksplice.com>
    Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

commit 39a449d96ac3db9b6d498b6ffbf4c763746d5e8b
Author: Tim Abbott <tabbott@ksplice.com>
Date:   Tue Jun 23 18:53:15 2009 -0400

    asm-generic/vmlinux.lds.h: shuffle INIT_TASK* macro names in vmlinux.lds.h
    
    We recently added a INIT_TASK(align) in include/asm-generic/vmlinux.lds.h,
    but there is already a macro INIT_TASK in include/linux/init_task.h, which
    is quite confusing.  We should switch the macro in the linker script to
    INIT_TASK_DATA. (Sorry that I missed this in reviewing the patch).  Since
    the macros are new, there is only one user of the INIT_TASK in
    vmlinux.lds.h, arch/mn10300/kernel/vmlinux.lds.S.
    
    However, we are currently using INIT_TASK_DATA for laying down an entire
    .data.init_task section.  So rename that to INIT_TASK_DATA_SECTION.
    
    I would be worried about changing the meaning of INIT_TASK_DATA, but the
    old INIT_TASK_DATA implementation had no users, and in fact if anyone had
    tried to use it, it would have failed to compile because it didn't pass
    the alignment to the old INIT_TASK.
    
    Signed-off-by: Tim Abbott <tabbott@ksplice.com>
    Cc: David Howells <dhowells@redhat.com>
    Cc: Jesper Nilsson <Jesper.Nilsson@axis.com
    Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

commit d2af12aeadaedf657c9fb9c3df984d2c5ab25f4c
Author: Tim Abbott <tabbott@ksplice.com>
Date:   Tue Jun 23 19:59:35 2009 -0400

    Add new macros for page-aligned data and bss sections.
    
    This patch is preparation for replacing most uses of
    ".bss.page_aligned" and ".data.page_aligned" in the kernel with
    macros, so that the section name can later be changed without having
    to touch a lot of the kernel.
    
    The long-term goal here is to be able to change the kernel's magic
    section names to those that are compatible with -ffunction-sections
    -fdata-sections.  This requires renaming all magic sections with names
    of the form ".data.foo".
    
    Signed-off-by: Tim Abbott <tabbott@ksplice.com>
    Acked-by: David Howells <dhowells@redhat.com>
    Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

commit 73f1d9391a6aa72efdcea2f302ee7bfcd313c631
Author: Paul Mundt <lethal@linux-sh.org>
Date:   Wed Jun 24 01:04:36 2009 +0900

    asm-generic/vmlinux.lds.h: Fix up RW_DATA_SECTION definition.
    
    RW_DATA_SECTION is defined to take 4 different alignment parameters,
    while NOSAVE_DATA currently uses a fixed PAGE_SIZE alignment as noted
    in the comments.
    
    There are presently no in-tree users of this at present, and I just
    stumbled across this while implementing the simplified script on a new
    architecture port, which subsequently resulted in a syntax error.
    
    Signed-off-by: Paul Mundt <lethal@linux-sh.org>
    Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

commit 39562e783928e3ea9ee2cbce99a756ab48d3c06a
Author: Christof Schmitt <christof.schmitt@de.ibm.com>
Date:   Fri Jun 26 16:30:43 2009 +0200

    [SCSI] FC transport: Locking fix for common-code FC pass-through patch
    
    Fix this:
    ------------[ cut here ]------------
    Badness at block/blk-core.c:244
    CPU: 0 Tainted: G        W  2.6.31-rc1-00004-gd3a263a #3
    Process zfcp_wq (pid: 901, task: 000000002fb7a038, ksp: 000000002f02bc78)
    Krnl PSW : 0704300180000000 00000000002141ba (blk_remove_plug+0xb2/0xb8)
               R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:3 PM:0 EA:3
    Krnl GPRS: 0000000000000001 0000000000000001 0000000022811440 0000000022811798
               000000000027ff4e 0000000000000000 0000000000000000 000000002f00f000
               070000000006a0f4 000000002af70000 000000002af2a800 00000000228d1c00
               0000000022811440 000000000050c708 000000002f02bca8 000000002f02bc80
    Krnl Code: 00000000002141b0: b9140022		lgfr	%r2,%r2
               00000000002141b4: 07fe		bcr	15,%r14
               00000000002141b6: a7f40001		brc	15,2141b8
              >00000000002141ba: a7f4ffbe		brc	15,214136
               00000000002141be: 0707		bcr	0,%r7
               00000000002141c0: ebaff0680024	stmg %r10,%r15,104(%r15)
               00000000002141c6: c0d00017c2a9	larl	%r13,50c718
               00000000002141cc: a7f13fc0		tmll	%r15,16320
    Call Trace:
    ([<000000000050e7d8>] C.272.16122+0x88/0x110)
     [<00000000002141ec>] __blk_run_queue+0x2c/0x154
     [<000000000028013a>] fc_remote_port_add+0x85e/0x95c
     [<000000000037596e>] zfcp_scsi_rport_work+0xe6/0x148
     [<000000000006908c>] worker_thread+0x25c/0x318
     [<000000000006f10c>] kthread+0x94/0x9c
     [<000000000001c2b2>] kernel_thread_starter+0x6/0xc
     [<000000000001c2ac>] kernel_thread_starter+0x0/0xc
    INFO: lockdep is turned off.
    Last Breaking-Event-Address:
     [<00000000002141b6>] blk_remove_plug+0xae/0xb8
    
    The FC pass-through support triggers the WARN_ON(!irqs_disabled()) in
    blk_plug_device. Since blk_plug_device requires being called with
    disabled interrupts, use spin_lock_irqsave in fc_bsg_goose_queue to
    disable the interrupts before calling into the block layer.
    
    Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
    Acked-by: James Smart <james.smart@emulex.com>
    Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

commit d3a263a8168f78874254ea9da9595cfb0f3e96d7
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date:   Wed Jun 24 19:55:22 2009 +0000

    [SCSI] zalon: fix oops on attach failure
    
    I recently discovered on my zalon that if the attachment fails because
    of a bus misconfiguration (I scrapped my HVD array, so the card is now
    unterminated) then the system oopses.  The reason is that if
    ncr_attach() returns NULL (signalling failure) that NULL is passed by
    the goto failed straight into ncr_detach() which oopses.
    
    The fix is just to return -ENODEV in this case.
    
    Cc: Stable Tree <stable@kernel.org>
    Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

commit e3f47cc74bddea8121560026185ede4770170043
Author: Abhijeet Joglekar <abjoglek@cisco.com>
Date:   Wed Jun 24 07:42:25 2009 -0700

    [SCSI] fnic: use DMA_BIT_MASK(nn) instead of deprecated DMA_nnBIT_MASK
    
    Robert Love reported warning while building fnic_main.c:
    drivers/scsi/fnic/fnic_main.c:478: warning: `DMA_nnBIT_MASK' is deprecated.
    
    Replaced use of DMA_nnBIT_MASK by DMA_BIT_MASK(nn)
    
    Signed-off-by: Abhijeet Joglekar <abjoglek@cisco.com>
    Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

commit 87a2d34b0372dcf6bc4caf4d97a7889f5e62a1af
Author: Roel Kluin <roel.kluin@gmail.com>
Date:   Tue Jun 23 01:06:40 2009 +0200

    [SCSI] fnic: remove redundant BUG_ONs and fix checks on unsigned
    
    The shost sg tablesize is set to FNIC_MAX_SG_DESC_CNT and fnic uses
    scsi_dma_map, so both BUG_ONs can be removed.
    
    scsi_dma_map may return -ENOMEM, sg_count should be int to catch that.
    
    Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
    Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

commit e08afeb7e69f45e4ab9fbb8530fe433484b96606
Author: Brian King <brking@linux.vnet.ibm.com>
Date:   Tue Jun 23 17:14:01 2009 -0500

    [SCSI] ibmvscsi: Fix module load hang
    
    Fixes a regression seen in the ibmvscsi driver when using the VSCSI
    server in SLES 9 and SLES 10. The VSCSI server in these releases
    has a bug in it in which it does not send responses to unknown MADs.
    Check the OS Type field in the adapter info response and do not send
    these unsupported commands when talking to an older server.
    
    Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
    Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

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New commits:
commit abf01ee7f86ac2bee2982e1a840a3136312d895e
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Jul 5 16:01:51 2009 -0400

    parisc: HAVE_ARCH_TRACEHOOK
    
    Not-yet-signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 351d7bc3f587b79f08cdeb4033a53da90ed3bf58
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Jul 5 15:59:56 2009 -0400

    parisc: add skeleton syscall.h
    
    Needed for lib/syscall.c when HAVE_ARCH_TRACEHOOK.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 73e89724292b34321d4c6e24cdd590e487c36e57
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Jul 5 15:08:57 2009 -0400

    parisc: stop using task->ptrace for {single,block}step flags
    
    task->ptrace flags belong to generic code, so instead thief some
    TIF_ bits to use. Somewhat risky conversion of code to test TASK_FLAGS
    instead of TASK_PTRACE in assembly, but it looks alright in the end.
    
    Not-yet-signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 2f0dda27f8e62c409e30125d420e89c762d0ea98
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Jul 5 14:36:16 2009 -0400

    parisc: split syscall_trace into two halves
    
    Instead of fiddling with gr[20], restructure code to return whether
    or not to -ENOSYS. (Also do a bit of fiddling to let them take
    pt_regs directly instead of re-computing it.)
    
    Not-yet-signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit abe61475751e54ffe5323983833c09c951baf0bc
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Jul 5 14:39:58 2009 -0400

    parisc: add missing TI_TASK macro in syscall.S
    
    LDREG 0(%r1),%r1 really wants to be accessing thread_info.task,
    instead of hardcoding the 0.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit c7f25b66b4e990ecba247c334d540a6db4ab8ae1
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Mon Apr 27 00:51:13 2009 -0400

    parisc: TIF_NOTIFY_RESUME
    
    Not-yet-signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 618525e21c173ef093872b41f4da3a6bb7de4252
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Mon Apr 27 00:29:53 2009 -0400

    parisc: tracehook_signal_handler
    
    This makes parisc call the standard tracehook_signal_handler hook
    in <linux/tracehook.h> after setting up a signal handler.
    
    Not-yet-signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 686028921d47115fe807b7b9d3e035eee155baf0
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Apr 26 23:53:34 2009 -0400

    parisc: tracehook_report_syscall
    
    This makes parisc use the standard tracehook_report_syscall_entry
    and tracehook_report_syscall_exit hooks in <linux/tracehook.h>.
    
    To do this, we need to access current->thread.regs, and to know
    whether we're entering or exiting the syscall, so add this to
    syscall_trace.
    
    Not-yet-signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
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> (gdb) p *(*preloads)->l_next
> $11 = {l_addr = 1076473856, l_name = 0x40000e78 "/lib/libdl.so.2", 
>   l_ld = 0x4029e5fc, l_next = 0x40001118, l_prev = 0x40000bf0, 
>   l_real = 0x40000e88, l_ns = 0, l_libname = 0x400010dc, l_info = {0x0, 
>   0x4029e5fc, 0x0 <repeats 74 times>}, l_phdr = 0x4029b034, 
>   l_entry = 1076477148, l_phnum = 7, l_ldnum = 31, l_searchlist = {
>   r_list = 0x0, r_nlist = 0}, l_symbolic_searchlist = {r_list = 0x400010d8, 
>   r_nlist = 0}, l_loader = 0x403d8880, l_versions = 0x0, l_nversions = 0, 
>   l_nbuckets = 0, l_gnu_bitmask_idxbits = 0, l_gnu_shift = 0, 
>   l_gnu_bitmask = 0x0, {l_gnu_buckets = 0x0, l_chain = 0x0}, {
>   l_gnu_chain_zero = 0x0, l_buckets = 0x0}, l_direct_opencount = 0, 
>   l_type = lt_library, l_relocated = 0, l_init_called = 0, l_global = 0, 
>   l_reserved = 1, l_phdr_allocated = 0, l_soname_added = 0, l_faked = 0, 
>   l_need_tls_init = 0, l_used = 0, l_auditing = 0, l_audit_any_plt = 0, 
>   l_removed = 0, l_contiguous = 1, l_rpath_dirs = {dirs = 0x0, malloced = 0}, 
>   l_reloc_result = 0x0, l_versyms = 0x0, l_origin = 0x400010f8 "/lib", 
>   l_map_start = 1076473856, l_map_end = 1076488476, l_text_end = 1076490240, 
>   l_scope_mem = {0x403d89dc, 0x0, 0x0, 0x0}, l_scope_max = 4, 
>   l_scope = 0x40001040, l_local_scope = {0x40000fe4, 0x0}, l_dev = 536937216, 
>   l_ino = 641559, l_runpath_dirs = {dirs = 0x0, malloced = 0}, 
>   l_initfini = 0x0, l_reldepsmax = 0, l_reldeps = 0x0, l_feature_1 = 0, 
>   l_flags_1 = 0, l_flags = 0, l_idx = 0, l_mach = {fptr_table_len = 0, 
>   fptr_table = 0x0}, l_lookup_cache = {sym = 0x0, type_class = 0, 
>   value = 0x0, ret = 0x0}, l_tls_initimage = 0x0, l_tls_initimage_size = 0, 
>   l_tls_blocksize = 0, l_tls_align = 0, l_tls_firstbyte_offset = 0, 
>   l_tls_offset = 0, l_tls_modid = 0, l_relro_addr = 0, l_relro_size = 0, 
>   l_serial = 3, l_audit = 0x400010d8}
> 
> (gdb) p &(*preloads)->l_next->l_info
> $14 = (Elf32_Dyn *(*)[76]) 0x40000ea8
> (gdb) p (*preloads)->l_next->l_info
> $15 = {0x0, 0x4029e5fc, 0x0 <repeats 74 times>}
> (gdb) p/x 0x40000ea8 + 5 * 4
> $17 = 0x40000ebc
> 
> So, the segmentation fault was caused by a 0x0 in the l_info field of
> the link map for "/lib/libdl.so.2".

After staring at the dynamic loader code for a while, I think the following
mmap call in dl-load.c doesn't correctly map the info data for /lib/libdl.so.2.

        /* Remember which part of the address space this object uses.  */
	l->l_map_start = (ElfW(Addr)) __mmap ((void *) mappref, maplength,
					      c->prot,
					      MAP_COPY|MAP_FILE,
					      fd, c->mapoff);

The info data is near the end of the mapped segment.  The l_info field
is initialized by elf_get_dynamic_info from the dynamic data mapped
at l->ld.

I seem to recall that the kernel mmap implementation on hppa is somewhat
unique.

In the above call, mappref is NULL.  The kernel selects the map location.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Jul 5, 2009 at 1:19 PM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> Carlos, what do you think?

I think the dynamic linker is always the first to touch the mmap'd
file and therefore the most likely to fail if something is wrong in
our VM layer.

Cheers,
Carlos.
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On Sun, Jul 5, 2009 at 7:07 PM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> After staring at the dynamic loader code for a while, I think the fol=
lowing
> mmap call in dl-load.c doesn't correctly map the info data for /lib/l=
ibdl.so.2.
>
> =A0 =A0 =A0 =A0/* Remember which part of the address space this objec=
t uses. =A0*/
> =A0 =A0 =A0 =A0l->l_map_start =3D (ElfW(Addr)) __mmap ((void *) mappr=
ef, maplength,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0c->prot,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0MAP_COPY|MAP_FILE,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0fd, c->mapoff);
>
> The info data is near the end of the mapped segment. =A0The l_info fi=
eld
> is initialized by elf_get_dynamic_info from the dynamic data mapped
> at l->ld.

Why do you think this is wrong?

> I seem to recall that the kernel mmap implementation on hppa is somew=
hat
> unique.

I don't recall anything, Kyle?

> In the above call, mappref is NULL. =A0The kernel selects the map loc=
ation.

Yes, that's probably correct, the loader is letting the kernel choose
the address, at this point we don't care where the library is loaded.

Cheers,
Carlos.
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> > The info data is near the end of the mapped segment. =A0The l_info field
> > is initialized by elf_get_dynamic_info from the dynamic data mapped
> > at l->ld.
> 
> Why do you think this is wrong?

I don't know about the specifics.  My supposition is that we may not
be copying the entire segment depending on where the map is placed.

> > I seem to recall that the kernel mmap implementation on hppa is somewhat
> > unique.
> 
> I don't recall anything, Kyle?

This came up with respect to the GCC PCH implementation for parisc.  See
comments in host-hpux.h.  At the moment, we do have a PCH related bug.
See PR 39355.  While I know the problem is present in the PCH file, I
haven't been able to figure out how wrong data gets in the file.

> > In the above call, mappref is NULL. =A0The kernel selects the map locatio=
> n.
> 
> Yes, that's probably correct, the loader is letting the kernel choose
> the address, at this point we don't care where the library is loaded.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, 2009-07-05 at 20:17 -0400, John David Anglin wrote:
> > > The info data is near the end of the mapped segment. =A0The l_info field
> > > is initialized by elf_get_dynamic_info from the dynamic data mapped
> > > at l->ld.
> > 
> > Why do you think this is wrong?
> 
> I don't know about the specifics.  My supposition is that we may not
> be copying the entire segment depending on where the map is placed.

Who is supposed to copy the segment?  The user or the kernel?

> > > I seem to recall that the kernel mmap implementation on hppa is somewhat
> > > unique.
> > 
> > I don't recall anything, Kyle?
> 
> This came up with respect to the GCC PCH implementation for parisc.  See
> comments in host-hpux.h.  At the moment, we do have a PCH related bug.
> See PR 39355.  While I know the problem is present in the PCH file, I
> haven't been able to figure out how wrong data gets in the file.

Do you have a bugzilla reference so we can take a look ... also, is this
likely a tool chain problem or a kernel one?  If it's a kernel one could
someone provide a description of what they think is going wrong?

James


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> On Sun, 2009-07-05 at 20:17 -0400, John David Anglin wrote:
> > > > The info data is near the end of the mapped segment. =A0The l_info field
> > > > is initialized by elf_get_dynamic_info from the dynamic data mapped
> > > > at l->ld.
> > > 
> > > Why do you think this is wrong?
> > 
> > I don't know about the specifics.  My supposition is that we may not
> > be copying the entire segment depending on where the map is placed.
> 
> Who is supposed to copy the segment?  The user or the kernel?

As far as I can tell, the kernel is responsible for mapping the segment.
Then, elf_get_dynamic_info processes the mapped data to generate the
l_info field in the link map.

The kernel has control over where the segment is mapped.  In as much
as the dependencies for /bin/sh are processed many times in a GCC
build, I have to think the problem relates to the placement or a
random problem with mmap.  There is a small possibility that the
processing of the data by elf_get_dynamic_info has a problem.

> > > > I seem to recall that the kernel mmap implementation on hppa is somewhat
> > > > unique.
> > > 
> > > I don't recall anything, Kyle?
> > 
> > This came up with respect to the GCC PCH implementation for parisc.  See
> > comments in host-hpux.h.  At the moment, we do have a PCH related bug.
> > See PR 39355.  While I know the problem is present in the PCH file, I
> > haven't been able to figure out how wrong data gets in the file.
> 
> Do you have a bugzilla reference so we can take a look ... also, is this
> likely a tool chain problem or a kernel one?  If it's a kernel one could
> someone provide a description of what they think is going wrong?

The bugzilla reference is <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39355>.

Many of my comments in the PR are wrong.  See comment #47.  At this time,
I know that the data in the PCH file are wrong but I don't know why.  In
any case, I should not have mentioned the PCH bug.  It's probably a tool
chain bug.  The main point of the comment was that the hppa mmap implementation
differs from other implementations (MAP_PRIVATE is not reliable).  So, there
may be other issues.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:31 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
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To: carlos@systemhalted.org (Carlos O'Donell)
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> On Sun, Jul 5, 2009 at 1:19 PM, John David
> Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> > Carlos, what do you think?
> 
> I think the dynamic linker is always the first to touch the mmap'd
> file and therefore the most likely to fail if something is wrong in
> our VM layer.

>From the core dump, this is the data supposed processed by
elf_get_dynamic_info:

(gdb) x/64x l->l_ld
0x4029e5fc <.LC11+4>:	0x00000001	0x00000167	0x00000001	0x00000171
0x4029e60c <.LC11+20>:	0x0000000e	0x00000179	0x0000000c	0x00000c9c
0x4029e61c <.LC11+36>:	0x0000000d	0x000020bc	0x00000019	0x00003590
0x4029e62c <.LC11+52>:	0x0000001b	0x00000004	0x00000004	0x00002168
0x4029e63c <.LC11+68>:	0x6ffffef5	0x00000134	0x00000005	0x0000047c
0x4029e64c <.LC11+84>:	0x00000006	0x000001ec	0x0000000a	0x000001c8
0x4029e65c <.LC11+100>:	0x0000000b	0x00000010	0x00000003	0x000037fc
0x4029e66c <.LC11+116>:	0x00000002	0x0000015c	0x00000014	0x00000007
0x4029e67c <.LC11+132>:	0x00000017	0x00000b40	0x00000007	0x000007b0
0x4029e68c <.LC11+148>:	0x00000008	0x00000390	0x00000009	0x0000000c
0x4029e69c <.LC11+164>:	0x6ffffffc	0x00000698	0x6ffffffd	0x00000006

(gdb) p l->l_ld[9]
$15 = {d_tag = 5, d_un = {d_val = 1148, d_ptr = 1148}}
(gdb) p/x 1148
$16 = 0x47c

The numbers seem to match that printed by readelf.  So, maybe Carlos
is right and this is a VM issue.  Is it possible the code saw different
data (e.g., the mmap operation was not complete before the mmap call
returned)?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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>>>>> I seem to recall that the kernel mmap implementation on hppa is somewhat
>>>>> unique.
>>>>>           
>>>> I don't recall anything, Kyle?
>>>>         
>>> This came up with respect to the GCC PCH implementation for parisc.  See
>>> comments in host-hpux.h.  At the moment, we do have a PCH related bug.
>>> See PR 39355.  While I know the problem is present in the PCH file, I
>>> haven't been able to figure out how wrong data gets in the file.
>>>       
There are some limitations on hppa if a file is both opened for reading 
(via read()) and written to via a mmap'ed mapping. This came up a few 
years ago.

Does gcc do this?

randolph
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From - Thu Nov 08 21:04:31 2018
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> >>>>> I seem to recall that the kernel mmap implementation on hppa is somewhat
> >>>>> unique.
> >>>>>           
> >>>> I don't recall anything, Kyle?
> >>>>         
> >>> This came up with respect to the GCC PCH implementation for parisc.  See
> >>> comments in host-hpux.h.  At the moment, we do have a PCH related bug.
> >>> See PR 39355.  While I know the problem is present in the PCH file, I
> >>> haven't been able to figure out how wrong data gets in the file.
> >>>       
> There are some limitations on hppa if a file is both opened for reading 
> (via read()) and written to via a mmap'ed mapping. This came up a few 
> years ago.
> 
> Does gcc do this?

Not that I am aware of.  The situation is essentially the reverse of
the above.  Data is written from a region of memory.  Then, in another
instance of gcc, it needs to be mmap'ed back to the same location in
memory.  In theory, it could be brought back to a different location
but this would require a fairly complex set of relocations.

Dave
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On Mon, Jul 6, 2009 at 9:28 AM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> Not that I am aware of. =A0The situation is essentially the reverse of
> the above. =A0Data is written from a region of memory. =A0Then, in anothe=
r
> instance of gcc, it needs to be mmap'ed back to the same location in
> memory. =A0In theory, it could be brought back to a different location
> but this would require a fairly complex set of relocations.

GCC does not read() and write to the mmap()'d file.

The dynamic loader uses MAP_DENYWRITE to avoid writing into the mmap()'d me=
mory.

I will reiterate my point here that the dynamic linker the first user
of mmap in a newly started process, and the first program to read and
process data from the mmap'd files. Therefore the dynamic linker is
always the first to suffer if a mapped region of memory is not
correct.

What we need to do here is create a test case.

I tried this:

1. cp /lib/libc.so.6 original.so
2. cp /lib/libc.so.6 map.so
3. gcc -O2 -g -o test-mmap test-mmap.c
4. while true; do ./test-mmap ./original.so ./map.so; done;

The test mmap's a file and compares it to the original, aborting if
the comparison fails. I've yet to see it abort on my a500, and I've
run 20-30 instances of the test simultaneously. Then again I don't see
any serious segv's like others do (2.6.26-1-parisc64-smp).

What might be a better testcase?

Cheers,
Carlos.

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From - Thu Nov 08 21:04:31 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
Subject: Re: HPPA and Squeeze
Date: Mon, 6 Jul 2009 14:45:37 -0400 (EDT)
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To: carlos@systemhalted.org (Carlos O'Donell)
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> I will reiterate my point here that the dynamic linker the first user
> of mmap in a newly started process, and the first program to read and
> process data from the mmap'd files. Therefore the dynamic linker is
> always the first to suffer if a mapped region of memory is not
> correct.

That is true to a certain extent.  However, there are large portions
of code and initialized data that it doesn't touch.  I don't think
that I've ever seen an invalid instruction fault.  So, I'm not fully
convinced that we understand the cause of these segvs.

As far as I can tell, the mmap'd data appears correct (at least as
far as what was recorded in the core file).  What is wrong is the
l_info field in the linker map.  Prior to failing on processing
libdl.so.2, it had successfully processed itself and libncurses.so.5
(see NEEDED entries for /bin/sh).  There isn't a lot that happens
between mmap'ing the file and the access to the STRTAB entry in
the l_info field.  The NEEDED entry at l_info[1] seems ok in the
dump.

I doubt this is a TLB issue as the data is a long way from page
boundaries.  Possibly, there is a cache line issue in the mmap'd
file, or as I suggested before a race condition and the file isn't
fully mapped when the mmap call returns.  In any case, the extraction
of the dynamic data failed after doing the first NEEDED entry.

I have to think that this has something to do with the machine
being a rp3440 (large memory and cache).  I have never seen this
on my c3750 with 32-bit UP kernel.  Also, this was with a 64-bit
UP kernel.

> What we need to do here is create a test case.
> 
> I tried this:
> 
> 1. cp /lib/libc.so.6 original.so
> 2. cp /lib/libc.so.6 map.so
> 3. gcc -O2 -g -o test-mmap test-mmap.c
> 4. while true; do ./test-mmap ./original.so ./map.so; done;
> 
> The test mmap's a file and compares it to the original, aborting if
> the comparison fails. I've yet to see it abort on my a500, and I've
> run 20-30 instances of the test simultaneously. Then again I don't see
> any serious segv's like others do (2.6.26-1-parisc64-smp).
> 
> What might be a better testcase?

I typically run my GCC builds with `make -j 4'.  So, there's a mix
of other stuff actively running at any time.

I'll give the testcase a try tonight.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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New commits:
commit 1bfad82af3452a5ba38fddae5b8bdd0689bffbb2
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Mon Jul 6 17:28:53 2009 -0400

    parisc: first pass of new-style ptrace for parisc
    
    This is going to be super nasty to gdb if we ever try to wire up
    PTRACE_(GET|SET){,FP}REGS since the format is different between
    coredump and pt_regs.
    
    Hopefully this maintains the coredump ABI. Let's test and see.
    (This commit will get squashed later, once I fix the build several
    times over I suspect.)
    
    Definitely-not-signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:04:31 2018
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On Mon, Jul 06, 2009 at 02:45:37PM -0400, John David Anglin wrote:
> I have to think that this has something to do with the machine
> being a rp3440 (large memory and cache).  I have never seen this
> on my c3750 with 32-bit UP kernel.  Also, this was with a 64-bit
> UP kernel.
> 

If I remember correctly, there's still some issues with the L2 cache on
pa8800 that we haven't quite bothered to work out yet, since it's "good
enough" for now. James probably knows more. It would be interesting to
see if you could reproduce it with a UP 64-bit kernel on your C3750 to
discount the L2 problems.

regards, Kyle

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This is a multi-part message in MIME format.
--------------030104070503020705080104
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

I started looking into why CONFIG_BACKTRACE_SELF_TEST=y shows uncomplete/wrong/broken backtraces.

To me it seems, that the unwind tables are broken when using newer gcc/binutils versions.
I'm running hppa-linux-gcc (GCC) 4.3.3, and GNU ld (GNU Binutils) 2.19.51.20090704.

hppa-linux-objdump -d vmlinux gives:

vmlinux:     file format elf32-hppa-linux
Disassembly of section .text:
10100000 <stext-0x700>:
10100000:       20 2f e2 06     ldil L%103df000,r1
10100004:       e0 20 28 82     be,n 440(sr4,r1)
10100008:       20 38 42 02     ldil L%10170000,r1
1010000c:       e0 20 23 da     be,n 1ec(sr4,r1)
10100010:       20 32 62 02     ldil L%10165000,r1
10100014:       e0 20 2a 0a     be,n 504(sr4,r1)
10100018:       20 34 42 06     ldil L%10368000,r1
1010001c:       e0 20 27 12     be,n 388(sr4,r1)
10100020:       20 33 f2 04     ldil L%102e7800,r1
10100024:       e0 20 22 ea     be,n 174(sr4,r1)
10100028:       20 35 22 06     ldil L%1032b000,r1
1010002c:       e0 20 2e 2a     be,n 714(sr4,r1)
(and continuing)
I assume this is a jump-table generated by the linker to
resolve long-distance calls?

and later:
         ...
10100700 <stext>:
10100700:       00 00 38 20     mtsp r0,sr4
10100704:       00 00 78 20     mtsp r0,sr5
10100708:       00 00 b8 20     mtsp r0,sr6
1010070c:       00 00 f8 20     mtsp r0,sr7
10100710:       20 69 80 0c     ldil L%692000,r3
10100714:       34 63 00 00     ldo 0(r3),r3
10100718:       20 93 f0 0c     ldil L%6e7800,r4
1010071c:       34 84 0f 58     ldo 7ac(r4),r4
10100720 <$bss_loop>:
10100720:       80 83 9f f7     cmpb,<<,n r3,r4,10100720 <$bss_loop>
10100724:       0c 60 12 a8     stw,ma r0,4(r3)
....

but the unwind table when running the kernel with the attached patch (see below) shows:
...
unwind_init: start = 0x105fb3c0, end = 0x10634f30, entries = 14775
unwind 1: 100ff900 - 100ffa80, len=385
unwind 2: 100ffa84 - 100ffad4, len=81
unwind 3: 100ffad8 - 100ffb2c, len=85
unwind 4: 100ffb30 - 100ffbc8, len=153
unwind 5: 100ffbcc - 100ffc38, len=109
unwind 6: 100ffc3c - 100ffc9c, len=97
unwind 7: 100ffca0 - 100ffd00, len=97
unwind 8: 100ffd04 - 100ffd64, len=97
unwind 9: 100ffd68 - 100ffdc8, len=97
unwind 10: 100ffdcc - 100ffdec, len=33

 From this table I don't even understand the values of the very first
entry (unwind 1: 100ff900 - 100ffa80).
This does not resolve to any entry in the assembly.

My assumption:
When the linker creates the long-distance jump table, it does not adjusts
the values in the unwind table.
Second, when the linker discards attribute-weak functions,
it doesn't deletes/adjusts the unwind table entries of the deleted functions either.

Question: Might my analysis be correct?

Helge

--------------030104070503020705080104
Content-Type: text/x-patch;
 name="dump-unwind-table.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="dump-unwind-table.diff"

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 69dad5a..d7c7241 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -94,6 +94,10 @@ unwind_table_init(struct unwind_table *table, const char *name,
 	struct unwind_table_entry *start = table_start;
 	struct unwind_table_entry *end = 
 		(struct unwind_table_entry *)table_end - 1;
+	int nr = 0;
+
+	extern void stext();
+	// base_addr += ((unsigned long)&stext) - KERNEL_START; // HELGE
 
 	table->name = name;
 	table->base_addr = base_addr;
@@ -112,6 +116,15 @@ unwind_table_init(struct unwind_table *table, const char *name,
 
 		start->region_start += base_addr;
 		start->region_end += base_addr;
+		if (nr<10) {
+			nr++;
+			printk("unwind %d: %x - %x, len=%d\n",
+				nr,
+				start->region_start,
+				start->region_end,
+				start->region_end - start->region_start + 1);
+				
+		}
 	}
 }
 

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From - Thu Nov 08 21:04:31 2018
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> I started looking into why CONFIG_BACKTRACE_SELF_TEST=y shows uncomplete/wrong/broken backtraces.
> 
> To me it seems, that the unwind tables are broken when using newer gcc/binutils versions.

Just wondering, but would it be possible to switch to using dwarf2 unwind
information.  I presume that's what most other targets use.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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New commits:
commit 22a5b0c152da18d2f202bdee20120e0f1c2ce21c
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Mon Jul 6 21:39:52 2009 -0400

    parisc: fix up new-style... coredumps work at least.
    
    Definitely-not-in-any-way-signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:04:31 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
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> If I remember correctly, there's still some issues with the L2 cache on
> pa8800 that we haven't quite bothered to work out yet, since it's "good
> enough" for now. James probably knows more. It would be interesting to
> see if you could reproduce it with a UP 64-bit kernel on your C3750 to
> discount the L2 problems.

Googling, I see Grant had trouble with RCU_TORTURE_TEST=y.  Probably,
I should test current kernel to see if the problem is still present.

I guess you are referring to this change:
http://fossplanet.com/linux.debian.devel.kernel.cvs/thread-4378354-r7141-patches/

I'm thinking we must be missing a flush...  Maybe in clear_user_page
as for copy_user_page?

Do the problematic debian buildd machines have pa8800/pa8900 processors?

My sense is that some change (probably to the core memory management
code) made the coherence issue worse post 2.6.22.x.

Dave
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On Mon, Jul 06, 2009 at 09:47:09PM -0400, John David Anglin wrote:
> > If I remember correctly, there's still some issues with the L2 cache on
> > pa8800 that we haven't quite bothered to work out yet, since it's "good
> > enough" for now. James probably knows more. It would be interesting to
> > see if you could reproduce it with a UP 64-bit kernel on your C3750 to
> > discount the L2 problems.
> 
> Googling, I see Grant had trouble with RCU_TORTURE_TEST=y.  Probably,
> I should test current kernel to see if the problem is still present.
> 
> I guess you are referring to this change:
> http://fossplanet.com/linux.debian.devel.kernel.cvs/thread-4378354-r7141-patches/
> 
> I'm thinking we must be missing a flush...  Maybe in clear_user_page
> as for copy_user_page?
> 
> Do the problematic debian buildd machines have pa8800/pa8900 processors?

dannf@penalosa:~$ cat /proc/cpuinfo 
processor	  : 0
cpu family	  : PA-RISC 2.0
cpu 		  : PA8700 (PCX-W2)
cpu MHz		    : 750.000000
model		      : 9000/785/J6700
model name	      : Duet W2
hversion	      : 0x00005dd0
sversion	      : 0x00000491
I-cache		      	: 768 KB
D-cache			  : 1536 KB (WB, direct mapped)
ITLB entries		  : 240
DTLB entries		  : 240 - shared with ITLB
bogomips		  : 1495.04
software id		  : 2001606322


> My sense is that some change (probably to the core memory management
> code) made the coherence issue worse post 2.6.22.x.
> 
> Dave

-- 
dann frazier

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From - Thu Nov 08 21:04:32 2018
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: unwind tables and backtraces broken?
Date: Tue, 07 Jul 2009 10:57:18 +0800
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Cc: linux-parisc <linux-parisc@vger.kernel.org>,
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To: Helge Deller <deller@gmx.de>
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Helge,

> but the unwind table when running the kernel with the attached patch 
> (see below) shows:
> ...
> unwind_init: start = 0x105fb3c0, end = 0x10634f30, entries = 14775
> unwind 1: 100ff900 - 100ffa80, len=385
> unwind 2: 100ffa84 - 100ffad4, len=81
> unwind 3: 100ffad8 - 100ffb2c, len=85
> unwind 4: 100ffb30 - 100ffbc8, len=153
> unwind 5: 100ffbcc - 100ffc38, len=109
> unwind 6: 100ffc3c - 100ffc9c, len=97
> unwind 7: 100ffca0 - 100ffd00, len=97
> unwind 8: 100ffd04 - 100ffd64, len=97
> unwind 9: 100ffd68 - 100ffdc8, len=97
> unwind 10: 100ffdcc - 100ffdec, len=33
>
> From this table I don't even understand the values of the very first
> entry (unwind 1: 100ff900 - 100ffa80).
> This does not resolve to any entry in the assembly.
I am a little fuzzy on the details, but the numbers printed above are 
what is stored in the unwind table. This does not correspond with the 
actual address in memory, which is adjusted by an offset. In the case of 
kernel symbols, this offset is KERNEL_START (this is a parameter passed 
to unwind_table_init()

> My assumption:
> When the linker creates the long-distance jump table, it does not adjusts
> the values in the unwind table.
this used to work.....
> Second, when the linker discards attribute-weak functions,
> it doesn't deletes/adjusts the unwind table entries of the deleted 
> functions either.
can you try this with a userspace program? gdb uses this same unwind 
information to do backtraces. if the unwind info is wrong gdb will be 
very broken.

On the other hand, the kernel does use a more complex linker script so 
it is possible that some options in the linker script is triggering some 
bug.

randolph
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From - Thu Nov 08 21:04:32 2018
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: parisc: unwind tables and backtraces broken?
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John David Anglin wrote:
>> I started looking into why CONFIG_BACKTRACE_SELF_TEST=y shows uncomplete/wrong/broken backtraces.
>>
>> To me it seems, that the unwind tables are broken when using newer gcc/binutils versions.
> 
> Just wondering, but would it be possible to switch to using dwarf2 unwind
> information.  I presume that's what most other targets use.

the hppa kernel unwinder is derived from the ia64 unwinder, which is not 
dwarf2 based.

The only dwarf references I find in the kernel are some dwarf markups in 
signal frames to help userspace with signal frame unwinding. Have I 
missed anything?

x86 seems to do something very ad-hoc.

randolph
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From - Thu Nov 08 21:04:32 2018
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Subject: Re: parisc: unwind tables and backtraces broken?
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On Tue, Jul 07, 2009 at 11:07:14AM +0800, Randolph Chung wrote:
> the hppa kernel unwinder is derived from the ia64 unwinder, which is not  
> dwarf2 based.
>
> The only dwarf references I find in the kernel are some dwarf markups in  
> signal frames to help userspace with signal frame unwinding. Have I  
> missed anything?
>
> x86 seems to do something very ad-hoc.
>

indeed, it very briefly had a dwarf unwinder, but linus turned it off
again because it turned out to generate worse backtraces than just
chunking through stack frames with frame pointers enabled did. although,
there is talk of it growing one again now.

regards, kyle
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New commits:
commit 8dcd3644bb70c18f5194c936232b2b703998ceeb
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Tue Jul 7 02:43:20 2009 -0400

    parisc: ptrace {GET,SET}REGS and compat
    
    Not for public consumption, testing with gdb seems to work, but strace
    using GETREGS seems broken.
    
    Not-signed-off-under-any-condition-by: Kyle McMartin <kyle@mcmartin.ca>

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On Tue, Jul 07, 2009 at 06:45:41AM +0000, Kyle McMartin wrote:
> New commits:
> commit 8dcd3644bb70c18f5194c936232b2b703998ceeb
> Author: Kyle McMartin <kyle@shortfin.cabal.ca>
> Date:   Tue Jul 7 02:43:20 2009 -0400
> 
>     parisc: ptrace {GET,SET}REGS and compat
>     
>     Not for public consumption, testing with gdb seems to work, but strace
>     using GETREGS seems broken.
>     
>     Not-signed-off-under-any-condition-by: Kyle McMartin <kyle@mcmartin.ca>

If anyone wants to play with this, I converted a few of the ptrace calls
in strace to use GET|SET_REGS. They seem to be working ok despite my
comment above, which was just me being a muppet.

In my limited testing, it seems to work as expected...

diff -Nur strace-4.5.18/process.c strace-4.5.18.getregs/process.c
--- strace-4.5.18/process.c	2008-07-17 22:16:47.000000000 -0400
+++ strace-4.5.18.getregs/process.c	2009-07-07 03:02:00.000000000 -0400
@@ -726,8 +726,12 @@
 		return -1;
 	return 0;
 #elif defined(HPPA)
-	if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(PT_GR20), new)<0)
-	    	return -1;
+	unsigned long regs[80];
+	if (ptrace(13, tcp->pid, (char*)&regs, 0) < 0)
+		return -1;
+	regs[20] = new;
+	if (ptrace(14, tcp->pid, (char*)&regs, 0) < 0)
+		return -1;
 	return 0;
 #elif defined(SH)
        if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(4*(REG_REG0+3)), new)<0)
diff -Nur strace-4.5.18/syscall.c strace-4.5.18.getregs/syscall.c
--- strace-4.5.18/syscall.c	2008-08-24 23:16:26.000000000 -0400
+++ strace-4.5.18.getregs/syscall.c	2009-07-07 03:09:49.000000000 -0400
@@ -1862,9 +1862,14 @@
 		return -1;
 #else /* !SPARC64 */
 #ifdef HPPA
-	r28 = error ? -error : rval;
-	if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(PT_GR28), r28) < 0)
-		return -1;
+	{
+		unsigned long regs[80];
+		if (ptrace(13, tcp->pid, (char *)&regs, 0) < 0)
+			return -1;
+		regs[28] = error ? -error : rval;
+		if (ptrace(14, tcp->pid, (char*)&regs, 0) < 0)
+			return -1;
+	}
 #else
 #ifdef SH
 	r0 = error ? -error : rval;
@@ -2094,15 +2099,20 @@
 	}
 #elif defined (HPPA)
 	{
-		int i;
+		int i, ret;
+		unsigned long regs[80];
+#define PTRACE_GETREGS	13
 
+		ret = ptrace(PTRACE_GETREGS, pid, NULL, (long)&regs);
+		if (ret < 0)
+			return -1;
+		
 		if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1)
 			tcp->u_nargs = sysent[tcp->scno].nargs;
 		else
-     	        	tcp->u_nargs = MAX_ARGS;
+     	        	tcp->u_nargs = 6;
 		for (i = 0; i < tcp->u_nargs; i++) {
-			if (upeek(pid, PT_GR26-4*i, &tcp->u_arg[i]) < 0)
-				return -1;
+			tcp->u_arg[i] = regs[26-i];	/* %r26 = %arg0, %r25 = %arg1... */
 		}
 	}
 #elif defined(ARM)
diff -Nur strace-4.5.18/util.c strace-4.5.18.getregs/util.c
--- strace-4.5.18/util.c	2009-05-06 11:38:56.000000000 -0400
+++ strace-4.5.18.getregs/util.c	2009-07-07 03:09:02.000000000 -0400
@@ -1900,6 +1900,7 @@
 	long pc;
 #elif defined(HPPA)
 	long iaoq;
+	unsigned long regs[80];
 #elif defined(SH)
        long pc;
 #endif /* architecture */
@@ -2053,8 +2054,9 @@
 		return 0;
 	}
 #elif defined(HPPA)
-	if (upeek(tcp->pid, PT_IAOQ0, &iaoq) < 0)
+	if (ptrace(13, tcp->pid, (char*)&regs, 0) < 0)
 		return -1;
+	iaoq = regs[40];
 	iaoq &= ~0x03;
 	if (iaoq != tcp->baddr && iaoq != tcp->baddr + 4) {
 		/* The breakpoint has not been reached yet.  */
@@ -2064,12 +2066,14 @@
 		return 0;
 	}
 	iaoq = tcp->baddr | 3;
+	regs[40] = iaoq;
+	regs[41] = iaoq;
 	/* We should be pointing at a 'ldi -1000,r1' in glibc, so it is
 	 * safe to set both IAOQ0 and IAOQ1 to that so the PSW N bit
 	 * has no significant effect.
 	 */
-	ptrace(PTRACE_POKEUSER, tcp->pid, (void *)PT_IAOQ0, iaoq);
-	ptrace(PTRACE_POKEUSER, tcp->pid, (void *)PT_IAOQ1, iaoq);
+	if (ptrace(14, tcp->pid, (char*)&regs, 0) < 0)
+		return -1;
 #elif defined(SH)
        if (upeek(tcp->pid, 4*REG_PC, &pc) < 0)
                return -1;
--
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Subject: Re: HPPA and Squeeze
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Xref: news.gmane.org gmane.linux.debian.ports.hppa:5823 gmane.linux.ports.parisc:1884 gmane.linux.debian.devel.release:31055
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On Mon, Jul 6, 2009 at 10:43 PM, dann frazier<dannf@dannf.org> wrote:
> dannf@penalosa:~$ cat /proc/cpuinfo
> processor =A0 =A0 =A0 =A0 : 0
> cpu family =A0 =A0 =A0 =A0: PA-RISC 2.0
> cpu =A0 =A0 =A0 =A0 =A0 =A0 =A0 : PA8700 (PCX-W2)
> cpu MHz =A0 =A0 =A0 =A0 =A0 =A0 : 750.000000
> model =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 : 9000/785/J6700
> model name =A0 =A0 =A0 =A0 =A0 =A0: Duet W2
> hversion =A0 =A0 =A0 =A0 =A0 =A0 =A0: 0x00005dd0
> sversion =A0 =A0 =A0 =A0 =A0 =A0 =A0: 0x00000491
> I-cache =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 : 768 KB
> D-cache =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 : 1536 KB (WB, direct mapped)
> ITLB entries =A0 =A0 =A0 =A0 =A0 =A0 =A0: 240
> DTLB entries =A0 =A0 =A0 =A0 =A0 =A0 =A0: 240 - shared with ITLB
> bogomips =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0: 1495.04
> software id =A0 =A0 =A0 =A0 =A0 =A0 =A0 : 2001606322

This is very similar to my own box. In frustration I've started
installing a buildd on my own a500. I might as well run a buildd to
load the machine and see if any of the reported package FTBS crop up.

Cheers,
Carlos.



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Subject: Re: parisc: unwind tables and backtraces broken?
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On Tue, Jul 7, 2009 at 12:42 AM, Kyle McMartin<kyle@mcmartin.ca> wrote:
> indeed, it very briefly had a dwarf unwinder, but linus turned it off
> again because it turned out to generate worse backtraces than just
> chunking through stack frames with frame pointers enabled did. although,
> there is talk of it growing one again now.

It will definitely need to grow a dwarf2 unwinder.

Any sane ABI should drop the hard frame pointer requirement in order
to get better code generation. For example on ARM under the EABI there
is no hard fp, you get that register back for other uses and it
simplifies prologue and epilogues. If you need an offset from the fp
the compiler synthesizes it for you, and reuses it appropriately after
the use is dead.

I thought bfd, and therefore readelf and objdump could read parisc
unwind info, if so, then what do those tools say about this broken
unwind info?

c.
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On Mon, 2009-07-06 at 21:47 -0400, John David Anglin wrote:
> > If I remember correctly, there's still some issues with the L2 cache on
> > pa8800 that we haven't quite bothered to work out yet, since it's "good
> > enough" for now. James probably knows more. It would be interesting to
> > see if you could reproduce it with a UP 64-bit kernel on your C3750 to
> > discount the L2 problems.
> 
> Googling, I see Grant had trouble with RCU_TORTURE_TEST=y.  Probably,
> I should test current kernel to see if the problem is still present.
> 
> I guess you are referring to this change:
> http://fossplanet.com/linux.debian.devel.kernel.cvs/thread-4378354-r7141-patches/
> 
> I'm thinking we must be missing a flush...  Maybe in clear_user_page
> as for copy_user_page?

Clear user page is very clever and doesn't need a flush.  What it does
is clear the page through the users cache rather than the kernel's ...
what it actually does is place zeros in the cache above the physical
page, so the user can only access the zeros ... they eventually get
cleaned back to the page as the cache empties.

> Do the problematic debian buildd machines have pa8800/pa8900 processors?

No boxes outside of the cupertino test ring and a few giveaways (you,
kyle and t-bone, I think) have pa88/8900 cpus.

> My sense is that some change (probably to the core memory management
> code) made the coherence issue worse post 2.6.22.x.

So if I characterise the problem you think you're seeing: on mmap of a
file at a memory location to be determined by the kernel, a sequential
set of reads of the mapped location eventually turns up a zero where
there should be data?  Yes, it does sound like a caching issue.

James


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On Mon, 2009-07-06 at 17:43 -0400, Kyle McMartin wrote:
> On Mon, Jul 06, 2009 at 02:45:37PM -0400, John David Anglin wrote:
> > I have to think that this has something to do with the machine
> > being a rp3440 (large memory and cache).  I have never seen this
> > on my c3750 with 32-bit UP kernel.  Also, this was with a 64-bit
> > UP kernel.
> > 
> 
> If I remember correctly, there's still some issues with the L2 cache on
> pa8800 that we haven't quite bothered to work out yet, since it's "good
> enough" for now. James probably knows more. It would be interesting to
> see if you could reproduce it with a UP 64-bit kernel on your C3750 to
> discount the L2 problems.

The pa8800/8900 are very special systems.  They have an L1/L2 VIPT cache
but an L2 PIPT one.  All other parisc systems have VIPT throughout.

The problem with the VIPT/PIPT combination is that you can get read only
stale alias resolution between the VIPT/PIPT hierarchy ... linux just
doesn't expect this to happen.  We work around this with extra flushes
in kmap to prevent the read only alias resolution from happening.
There's nothing missing in the logic of this, the only problem is that
its operation treats the vast L2 PIPT cache as a useless boat anchor
whose only job is to make life harder for us ... so we're getting
absolutely no benefit from the 25-50MB of cache there.

James


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From - Thu Nov 08 21:04:32 2018
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> So if I characterise the problem you think you're seeing: on mmap of a
> file at a memory location to be determined by the kernel, a sequential
> set of reads of the mapped location eventually turns up a zero where
> there should be data?  Yes, it does sound like a caching issue.

Yes.  The loop is terminated by a null tag:

  while (dyn->d_tag != DT_NULL)
      {
         ...
      }

However, the core dump doesn't show a null tag before the STRTAB tag
that caused the segmentation fault.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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New commits:
commit cfbeb2a4f72dd93e714ad1c578336c30f7f887a9
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Tue Jul 7 13:27:42 2009 -0400

    parisc: unify compat PTRACE_{GET|SET}REGS paths
    
    Just call arch_ptrace for all of them and add some helpers to
    check TIF_32BIT.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:04:32 2018
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On 07/07/2009 04:57 AM, Randolph Chung wrote:
> Helge,
>
>> but the unwind table when running the kernel with the attached patch
>> (see below) shows:
>> ...
>> unwind_init: start = 0x105fb3c0, end = 0x10634f30, entries = 14775
>> unwind 1: 100ff900 - 100ffa80, len=385
>> unwind 2: 100ffa84 - 100ffad4, len=81
>> unwind 3: 100ffad8 - 100ffb2c, len=85
>> unwind 4: 100ffb30 - 100ffbc8, len=153
>> unwind 5: 100ffbcc - 100ffc38, len=109
>> unwind 6: 100ffc3c - 100ffc9c, len=97
>> unwind 7: 100ffca0 - 100ffd00, len=97
>> unwind 8: 100ffd04 - 100ffd64, len=97
>> unwind 9: 100ffd68 - 100ffdc8, len=97
>> unwind 10: 100ffdcc - 100ffdec, len=33
>>
>> From this table I don't even understand the values of the very first
>> entry (unwind 1: 100ff900 - 100ffa80).
>> This does not resolve to any entry in the assembly.
> I am a little fuzzy on the details, but the numbers printed above are
> what is stored in the unwind table. This does not correspond with the
> actual address in memory, which is adjusted by an offset. In the case of
> kernel symbols, this offset is KERNEL_START (this is a parameter passed
> to unwind_table_init()

The addresses given above already got the offset added. They are wrong
nevertheless.

>> My assumption:
>> When the linker creates the long-distance jump table, it does not adjusts
>> the values in the unwind table.
> this used to work.....

Yes.
Interestingly, this problem showed up to me now since I updated my 32- and
64bit crosscompilers to 4.3.3 (and binutils of course).
I used (on 32bit) the gcc-3.3 before and this one doesn't exibited the
problem of buggy unwind tables (with the existing/same kernel source code).

>> Second, when the linker discards attribute-weak functions,
>> it doesn't deletes/adjusts the unwind table entries of the deleted
>> functions either.
> can you try this with a userspace program? gdb uses this same unwind
> information to do backtraces. if the unwind info is wrong gdb will be
> very broken.

I'll try, but I assume userspace is ok. If it wouldn't be, Dave probably
won't be able to debug the other userspace issues (the segv-thread on debian's
buildds).
  
> On the other hand, the kernel does use a more complex linker script so
> it is possible that some options in the linker script is triggering some
> bug.

Yes, maybe. But again, I think gcc-3.3 (and the old binutils) could handle this gracefully.

Helge
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To: Carlos O'Donell <carlos@systemhalted.org>
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On 07/07/2009 04:07 PM, Carlos O'Donell wrote:
> On Tue, Jul 7, 2009 at 12:42 AM, Kyle McMartin<kyle@mcmartin.ca>  wrote:
>> indeed, it very briefly had a dwarf unwinder, but linus turned it off
>> again because it turned out to generate worse backtraces than just
>> chunking through stack frames with frame pointers enabled did. although,
>> there is talk of it growing one again now.
>
> It will definitely need to grow a dwarf2 unwinder.
>
> Any sane ABI should drop the hard frame pointer requirement in order
> to get better code generation. For example on ARM under the EABI there
> is no hard fp, you get that register back for other uses and it
> simplifies prologue and epilogues. If you need an offset from the fp
> the compiler synthesizes it for you, and reuses it appropriately after
> the use is dead.
>
> I thought bfd, and therefore readelf and objdump could read parisc
> unwind info, if so, then what do those tools say about this broken
> unwind info?

Any hint what I should do to give you the input you need?

Helge
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Subject: Re: parisc: unwind tables and backtraces broken?
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> Interestingly, this problem showed up to me now since I updated my 32- and
> 64bit crosscompilers to 4.3.3 (and binutils of course).
> I used (on 32bit) the gcc-3.3 before and this one doesn't exibited the
> problem of buggy unwind tables (with the existing/same kernel source code).

GCC doesn't know anything about PA-RISC unwind info.  It's generated by the
assembler from assembler directives.  So, I think it's unlikely that the
problem is in GCC.

Your comments about dead-code elimination by the linker make me wonder
if that isn't the problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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New commits:
commit 26f3d5c34cd86a3bbf0f0912dc306e24b38b02aa
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Tue Jul 7 14:46:28 2009 -0400

    parisc: fix thinko, accidently used compat size not native size

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New commits:
commit 6bacc95df4c71f939f6fd6ff904492ea4c3381c9
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Tue Jul 7 15:06:49 2009 -0400

    parisc: frobnicate setting the PSW in gr0

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Subject: Re: parisc: unwind tables and backtraces broken?
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On Tue, Jul 7, 2009 at 2:33 PM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
>> Interestingly, this problem showed up to me now since I updated my 3=
2- and
>> 64bit crosscompilers to 4.3.3 (and binutils of course).
>> I used (on 32bit) the gcc-3.3 before and this one doesn't exibited t=
he
>> problem of buggy unwind tables (with the existing/same kernel source=
 code).
>
> GCC doesn't know anything about PA-RISC unwind info. =A0It's generate=
d by the
> assembler from assembler directives. =A0So, I think it's unlikely tha=
t the
> problem is in GCC.
>
> Your comments about dead-code elimination by the linker make me wonde=
r
> if that isn't the problem.

Helge,

Are you compiling with --gc-sections? Try without?

I've seen at least one problem in the past on another target where
garbage collection would not correctly update debug information.

Cheers,
Carlos.
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On Tue, Jul 7, 2009 at 12:21 PM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
>> So if I characterise the problem you think you're seeing: on mmap of=
 a
>> file at a memory location to be determined by the kernel, a sequenti=
al
>> set of reads of the mapped location eventually turns up a zero where
>> there should be data? =A0Yes, it does sound like a caching issue.
>
> Yes. =A0The loop is terminated by a null tag:
>
> =A0while (dyn->d_tag !=3D DT_NULL)
> =A0 =A0 =A0{
> =A0 =A0 =A0 =A0 ...
> =A0 =A0 =A0}
>
> However, the core dump doesn't show a null tag before the STRTAB tag
> that caused the segmentation fault.

Do you mean "after" the STRTAB tag? I assume the library on-disk has a
DT_NULL, otherwise it would always fail.

Cheers,
Carlos.
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Tue, 07 Jul 2009, Carlos O'Donell wrote:

> On Tue, Jul 7, 2009 at 12:21 PM, John David
> Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> >> So if I characterise the problem you think you're seeing: on mmap =
of a
> >> file at a memory location to be determined by the kernel, a sequen=
tial
> >> set of reads of the mapped location eventually turns up a zero whe=
re
> >> there should be data? =A0Yes, it does sound like a caching issue.
> >
> > Yes. =A0The loop is terminated by a null tag:
> >
> > =A0while (dyn->d_tag !=3D DT_NULL)
> > =A0 =A0 =A0{
> > =A0 =A0 =A0 =A0 ...
> > =A0 =A0 =A0}
> >
> > However, the core dump doesn't show a null tag before the STRTAB ta=
g
> > that caused the segmentation fault.
>=20
> Do you mean "after" the STRTAB tag? I assume the library on-disk has =
a
> DT_NULL, otherwise it would always fail.

I'm sure that there is a null tag after the STRTAB.  The segmentation
fault occurred because the get operation failed after processing
the first NEEDED tag and before the STRTAB tag.  The loop goes
sequentially through the array of DT objects in the recently mmap'd
data and inserts pointers to these objects into the dynamic loaders
link map for the file (in the l_info field).  There were no null tags
between the NEEDED entry and the STRTAB entry in the mmap'd data in
the core dump.  The DT objects are near the end of the mmap'd data.

I would guess that the loop terminated early because the l_info array
is all zeros except for the first NEEDED entry.  It appears correct.  T=
he
loop might have terminated early because of a cache issue, or possibly
the value loaded from memory somehow got corrupted.  Another possibilit=
y
would be the mmap operation wasn't complete when the memory was examine=
d
by the dynamic loader.  When the core dump was done, the operation was
complete.

I think it's less likely that a cache issue affected the memory used by
the dynamic loader (l_info field) as the data before and after in the
map seemed reasonable.

The fact PA8700 processors are also experiencing similar problems
would seem to suggest that this isn't a PA8800 L2 issue unless we have
multiple problems.

I think we need to try running a recent kernel on gsyprf11 for a while
to see if we can capture a similar event.

Dave
--=20
J. David Anglin                                  dave.anglin@nrc-cnrc.g=
c.ca
National Research Council of Canada              (613) 990-0752 (FAX: 9=
52-6602)
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
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To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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On Tue, Jul 7, 2009 at 6:07 PM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> I would guess that the loop terminated early because the l_info array
> is all zeros except for the first NEEDED entry. =A0It appears correct=
=2E =A0The
> loop might have terminated early because of a cache issue, or possibl=
y
> the value loaded from memory somehow got corrupted. =A0Another possib=
ility
> would be the mmap operation wasn't complete when the memory was exami=
ned
> by the dynamic loader. =A0When the core dump was done, the operation =
was
> complete.
>
> I think it's less likely that a cache issue affected the memory used =
by
> the dynamic loader (l_info field) as the data before and after in the
> map seemed reasonable.
>
> The fact PA8700 processors are also experiencing similar problems
> would seem to suggest that this isn't a PA8800 L2 issue unless we hav=
e
> multiple problems.
>
> I think we need to try running a recent kernel on gsyprf11 for a whil=
e
> to see if we can capture a similar event.

This rang a bell...

In glibc/elf/rtld.c we have this:

  /* Partly clean the `bootstrap_map' structure up.  Don't use
     `memset' since it might not be built in or inlined and we cannot
     make function calls at this point.  Use '__builtin_memset' if we
     know it is available.  We do not have to clear the memory if we
     do not have to use the temporary bootstrap_map.  Global variables
     are initialized to zero by default.  */
#ifndef DONT_USE_BOOTSTRAP_MAP
# ifdef HAVE_BUILTIN_MEMSET
  __builtin_memset (bootstrap_map.l_info, '\0', sizeof (bootstrap_map.l=
_info));
# else
  for (size_t cnt =3D 0;
       cnt < sizeof (bootstrap_map.l_info) / sizeof (bootstrap_map.l_in=
fo[0]);
       ++cnt)
    bootstrap_map.l_info[cnt] =3D 0;
# endif

On hppa we don't have builtin memset (probably one of the few arches),
so we fall back on this weird loop which I always thought was wrong.

I was seeing problems with l_info having garbage in it, so I had a
local hack which cleared the entire bootstrap_map.

Did your l_info come from the bootstrap_map?

Cheers,
Carlos.
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To: carlos@systemhalted.org (Carlos O'Donell)
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> On Tue, Jul 7, 2009 at 6:07 PM, John David
> Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> > I would guess that the loop terminated early because the l_info array
> > is all zeros except for the first NEEDED entry. =A0It appears correct. =
> =A0The
> > loop might have terminated early because of a cache issue, or possibly
> > the value loaded from memory somehow got corrupted. =A0Another possibilit=
> y
> > would be the mmap operation wasn't complete when the memory was examined
> > by the dynamic loader. =A0When the core dump was done, the operation was
> > complete.
> >
> > I think it's less likely that a cache issue affected the memory used by
> > the dynamic loader (l_info field) as the data before and after in the
> > map seemed reasonable.
> >
> > The fact PA8700 processors are also experiencing similar problems
> > would seem to suggest that this isn't a PA8800 L2 issue unless we have
> > multiple problems.
> >
> > I think we need to try running a recent kernel on gsyprf11 for a while
> > to see if we can capture a similar event.
> 
> This rang a bell...
> 
> In glibc/elf/rtld.c we have this:
> 
>   /* Partly clean the `bootstrap_map' structure up.  Don't use
>      `memset' since it might not be built in or inlined and we cannot
>      make function calls at this point.  Use '__builtin_memset' if we
>      know it is available.  We do not have to clear the memory if we
>      do not have to use the temporary bootstrap_map.  Global variables
>      are initialized to zero by default.  */
> #ifndef DONT_USE_BOOTSTRAP_MAP
> # ifdef HAVE_BUILTIN_MEMSET
>   __builtin_memset (bootstrap_map.l_info, '\0', sizeof (bootstrap_map.l_inf=
> o));
> # else
>   for (size_t cnt =3D 0;
>        cnt < sizeof (bootstrap_map.l_info) / sizeof (bootstrap_map.l_info[0=
> ]);
>        ++cnt)
>     bootstrap_map.l_info[cnt] =3D 0;
> # endif
> 
> On hppa we don't have builtin memset (probably one of the few arches),
> so we fall back on this weird loop which I always thought was wrong.
> 
> I was seeing problems with l_info having garbage in it, so I had a
> local hack which cleared the entire bootstrap_map.
> 
> Did your l_info come from the bootstrap_map?

No.  The l_info fields for the dynamic loader and libncurses.so.5
had already been processed.  The segv occurred processing the needed
entry for libdl.so.2.  The code was processing the needed entries
for /bin/sh.

The cause of the corruption that you observed is not obvious to
me.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Jaswinder Singh Rajput <jaswinder@kernel.org>
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Subject: [PATCH 26/44] includecheck fix: drivers/parisc, ccio-dma.c
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fix the following 'make includecheck' warning:

  drivers/parisc/ccio-dma.c: linux/proc_fs.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
---
 drivers/parisc/ccio-dma.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 0f0e0b9..a45b0c0 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -70,7 +70,6 @@
 #undef CCIO_COLLECT_STATS
 #endif
 
-#include <linux/proc_fs.h>
 #include <asm/runway.h>		/* for proc_runway_root */
 
 #ifdef DEBUG_CCIO_INIT
-- 
1.6.0.6



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From: Artem Alimarine <artem.alimarine@stromasys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Wierd code in Entry.S
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Hi guys,

I am new to PARISC and to this forum. I have a small question. There is 
an instruction in entry.S that I do not understand. It is in the the 
macro make_insert_tlb

Kernel 2.6.26.2:

 537        /* Enforce uncacheable pages.
 538         * This should ONLY be use for MMIO on PA 2.0 machines.
 539         * Memory/DMA is cache coherent on all PA2.0 machines we 
support
 540         * (that means T-class is NOT supported) and the memory 
controllers
 541         * on most of those machines only handles cache transactions.
 542         */
 543        extrd,u,*=      \pte,_PAGE_NO_CACHE_BIT+32,1,%r0
 544        depi            1,12,1,\prot


The DEPI instruction on a 64-bit machine sets bit 44=32+12,
whereas we use the value as the argument to IDTLBT, which expects bit 12 
to be used instead. Does it mean that the U-bit is never set and the 
authorization id gets corrupted???

Is it a bug or my misunderstanding of the code???

Best regards,
Artem

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From - Thu Nov 08 21:04:33 2018
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On Thu, Jul 09, 2009 at 03:11:19PM +0200, Artem Alimarine wrote:
> Hi guys,
>
> I am new to PARISC and to this forum. I have a small question. There is  
> an instruction in entry.S that I do not understand. It is in the the  
> macro make_insert_tlb
>
> Kernel 2.6.26.2:
>
> 537        /* Enforce uncacheable pages.
> 538         * This should ONLY be use for MMIO on PA 2.0 machines.
> 539         * Memory/DMA is cache coherent on all PA2.0 machines we support
> 540         * (that means T-class is NOT supported) and the memory controllers
> 541         * on most of those machines only handles cache transactions.
> 542         */
> 543        extrd,u,*=      \pte,_PAGE_NO_CACHE_BIT+32,1,%r0
> 544        depi            1,12,1,\prot
>
>

The "*=" in line 543 will determine if "depi" instruction (line 544)
gets executed or not. You'll need the "PA-RISC 2.0 Architecture":
    http://www.parisc-linux.org/documentation/index.html
    http://ftp.parisc-linux.org/docs/arch/parisc2.0.pdf

And read page 7-47, 7-48, and Table D-14.


> The DEPI instruction on a 64-bit machine sets bit 44=32+12,
> whereas we use the value as the argument to IDTLBT, which expects bit 12  
> to be used instead.
>
> Does it mean that the U-bit is never set and the  
> authorization id gets corrupted???

U-bit will get set only if _PAGE_NO_CACHE_BIT+32 is also set.

The bit enumeration is *reverse* with MSb being 0 for all ASM instructions
and all references in the PA2.0 Arch manual.

Because this is a 64 bit build, "+32" is needed to refer to the lower half
of the double word (word == 32 bits).

> Is it a bug or my misunderstanding of the code???

It looks correct to me. "12" here always seems to refer to the U-bit as
defined in the PA2.0 Arch manual.

hth,
grant
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From - Thu Nov 08 21:04:33 2018
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Subject: Re: Wierd code in Entry.S
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> On Thu, Jul 09, 2009 at 03:11:19PM +0200, Artem Alimarine wrote:
> > Hi guys,
> >
> > I am new to PARISC and to this forum. I have a small question. There is  
> > an instruction in entry.S that I do not understand. It is in the the  
> > macro make_insert_tlb
> >
> > Kernel 2.6.26.2:
> >
> > 537        /* Enforce uncacheable pages.
> > 538         * This should ONLY be use for MMIO on PA 2.0 machines.
> > 539         * Memory/DMA is cache coherent on all PA2.0 machines we support
> > 540         * (that means T-class is NOT supported) and the memory controllers
> > 541         * on most of those machines only handles cache transactions.
> > 542         */
> > 543        extrd,u,*=      \pte,_PAGE_NO_CACHE_BIT+32,1,%r0
> > 544        depi            1,12,1,\prot
> >
> >
> 
> The "*=" in line 543 will determine if "depi" instruction (line 544)
> gets executed or not. You'll need the "PA-RISC 2.0 Architecture":
>     http://www.parisc-linux.org/documentation/index.html
>     http://ftp.parisc-linux.org/docs/arch/parisc2.0.pdf
> 
> And read page 7-47, 7-48, and Table D-14.
> 
> 
> > The DEPI instruction on a 64-bit machine sets bit 44=32+12,
> > whereas we use the value as the argument to IDTLBT, which expects bit 12  
> > to be used instead.
> >
> > Does it mean that the U-bit is never set and the  
> > authorization id gets corrupted???
> 
> U-bit will get set only if _PAGE_NO_CACHE_BIT+32 is also set.
> 
> The bit enumeration is *reverse* with MSb being 0 for all ASM instructions
> and all references in the PA2.0 Arch manual.
> 
> Because this is a 64 bit build, "+32" is needed to refer to the lower half
> of the double word (word == 32 bits).
> 
> > Is it a bug or my misunderstanding of the code???
> 
> It looks correct to me. "12" here always seems to refer to the U-bit as
> defined in the PA2.0 Arch manual.

To me, it looks like the instruction should be a depdi.  See the preceding
deposit of PAGE_USER.  According to the IDTLBT description, the U bit is
bit 12 in r2, not bit 44.

rp3440 boots with the depdi change.  Building gcc...

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:34 2018
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From: Artem Alimarine <artem.alimarine@stromasys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Wierd code in Entry.S
Date: Fri, 10 Jul 2009 09:31:05 +0200
Organization: Stromasys SA
Lines: 108
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Hi Grant,

My point is that IDTLBT (see page 7-65 in the PA-RISC 2.0w spec) expects 
the U-bit in 12th bit of the 64-bit DWORD, thus, in the upper part 
instead of the lower part (see the code at dtlb_miss_20w). As you said, 
the bit is set in the lower part. I still suspect that the wrong bit is 
set on a 64-bit machine.

The confusion comes from the fact that the The PA1.1 instruction IDTLBP 
expects  U-bit in the bit 12 of the WORD, whereas PA2.0 IDTLBT expects 
it in bit 12 of the DWORD.

Best regards,
Artem

Grant Grundler wrote:
> On Thu, Jul 09, 2009 at 03:11:19PM +0200, Artem Alimarine wrote:
>   
>> Hi guys,
>>
>> I am new to PARISC and to this forum. I have a small question. There is  
>> an instruction in entry.S that I do not understand. It is in the the  
>> macro make_insert_tlb
>>
>> Kernel 2.6.26.2:
>>
>> 537        /* Enforce uncacheable pages.
>> 538         * This should ONLY be use for MMIO on PA 2.0 machines.
>> 539         * Memory/DMA is cache coherent on all PA2.0 machines we support
>> 540         * (that means T-class is NOT supported) and the memory controllers
>> 541         * on most of those machines only handles cache transactions.
>> 542         */
>> 543        extrd,u,*=      \pte,_PAGE_NO_CACHE_BIT+32,1,%r0
>> 544        depi            1,12,1,\prot
>>
>>
>>     
>
> The "*=" in line 543 will determine if "depi" instruction (line 544)
> gets executed or not. You'll need the "PA-RISC 2.0 Architecture":
>     http://www.parisc-linux.org/documentation/index.html
>     http://ftp.parisc-linux.org/docs/arch/parisc2.0.pdf
>
> And read page 7-47, 7-48, and Table D-14.
>
>
>   
>> The DEPI instruction on a 64-bit machine sets bit 44=32+12,
>> whereas we use the value as the argument to IDTLBT, which expects bit 12  
>> to be used instead.
>>
>> Does it mean that the U-bit is never set and the  
>> authorization id gets corrupted???
>>     
>
> U-bit will get set only if _PAGE_NO_CACHE_BIT+32 is also set.
>
> The bit enumeration is *reverse* with MSb being 0 for all ASM instructions
> and all references in the PA2.0 Arch manual.
>
> Because this is a 64 bit build, "+32" is needed to refer to the lower half
> of the double word (word == 32 bits).
>
>   
>> Is it a bug or my misunderstanding of the code???
>>     
>
> It looks correct to me. "12" here always seems to refer to the U-bit as
> defined in the PA2.0 Arch manual.
>
> hth,
> grant
>
>   


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Subject: Re: [PATCH 3/8] parisc: implement dma_mmap_coherent()
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On Fri, 2009-07-10 at 15:13 +0200, Takashi Iwai wrote:
> A lazy version of dma_mmap_coherent() implementation for PA-RISC.
> 
> Signed-off-by: Takashi Iwai <tiwai@suse.de>
> ---
>  arch/parisc/include/asm/dma-mapping.h |   13 +++++++++++++
>  arch/parisc/kernel/pci-dma.c          |   16 ++++++++++++++++
>  drivers/parisc/ccio-dma.c             |    1 +
>  drivers/parisc/iommu-helpers.h        |   16 ++++++++++++++++
>  drivers/parisc/sba_iommu.c            |    1 +
>  5 files changed, 47 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
> index da69433..b5f810e 100644
> --- a/arch/parisc/include/asm/dma-mapping.h
> +++ b/arch/parisc/include/asm/dma-mapping.h
> @@ -19,6 +19,9 @@ struct hppa_dma_ops {
>  	void (*dma_sync_single_for_device)(struct device *dev, dma_addr_t iova, unsigned long offset, size_t size, enum dma_data_direction direction);
>  	void (*dma_sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
>  	void (*dma_sync_sg_for_device)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
> +	int (*mmap_coherent)(struct device *dev, struct vm_area_struct *vma,
> +			     void *cpu_addr, dma_addr_t handle, size_t size);
> +
>  };
>  
>  /*
> @@ -204,6 +207,16 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size,
>  		flush_kernel_dcache_range((unsigned long)vaddr, size);
>  }
>  
> +#define ARCH_HAS_DMA_MMAP_COHERENT
> +static inline int
> +dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
> +		  void *cpu_addr, dma_addr_t handle, size_t size)
> +{
> +	if (!hppa_dma_ops->mmap_coherent)
> +		return -ENXIO;
> +	return hppa_dma_ops->mmap_coherent(dev, vma, cpu_addr, handle, size);
> +}
> +
>  static inline void *
>  parisc_walk_tree(struct device *dev)
>  {
> diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
> index c07f618..e8c68e3 100644
> --- a/arch/parisc/kernel/pci-dma.c
> +++ b/arch/parisc/kernel/pci-dma.c
> @@ -539,6 +539,20 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
>  		flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
>  }
>  
> +static int pa11_dma_mmap_coherent(struct device *dev,
> +				  struct vm_area_struct *vma,
> +				  void *cpu_addr, dma_addr_t handle,
> +				  size_t size)
> +{
> +	struct page *pg;
> +	pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
> +	cpu_addr = __va(handle);
> +	pg = virt_to_page(cpu_addr);
> +	return remap_pfn_range(vma, vma->vm_start,
> +			       page_to_pfn(pg) + vma->vm_pgoff,
> +			       size, vma->vm_page_prot);
> +}
> +
>  struct hppa_dma_ops pcxl_dma_ops = {
>  	.dma_supported =	pa11_dma_supported,
>  	.alloc_consistent =	pa11_dma_alloc_consistent,
> @@ -552,6 +566,7 @@ struct hppa_dma_ops pcxl_dma_ops = {
>  	.dma_sync_single_for_device = pa11_dma_sync_single_for_device,
>  	.dma_sync_sg_for_cpu = pa11_dma_sync_sg_for_cpu,
>  	.dma_sync_sg_for_device = pa11_dma_sync_sg_for_device,
> +	.mmap_coherent =	pa11_dma_mmap_coherent,
>  };
>  
>  static void *fail_alloc_consistent(struct device *dev, size_t size,
> @@ -592,4 +607,5 @@ struct hppa_dma_ops pcx_dma_ops = {
>  	.dma_sync_single_for_device =	pa11_dma_sync_single_for_device,
>  	.dma_sync_sg_for_cpu =		pa11_dma_sync_sg_for_cpu,
>  	.dma_sync_sg_for_device =	pa11_dma_sync_sg_for_device,
> +	.mmap_coherent =	pa11_dma_mmap_coherent,
>  };
> diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
> index 0f0e0b9..0dd67ae 100644
> --- a/drivers/parisc/ccio-dma.c
> +++ b/drivers/parisc/ccio-dma.c
> @@ -1016,6 +1016,7 @@ static struct hppa_dma_ops ccio_ops = {
>  	.dma_sync_single_for_device =	NULL,	/* NOP for U2/Uturn */
>  	.dma_sync_sg_for_cpu =		NULL,	/* ditto */
>  	.dma_sync_sg_for_device =		NULL,	/* ditto */
> +	.mmap_coherent =	iommu_dma_mmap_coherent,
>  };
>  
>  #ifdef CONFIG_PROC_FS
> diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h
> index a9c46cc..9f86f3f 100644
> --- a/drivers/parisc/iommu-helpers.h
> +++ b/drivers/parisc/iommu-helpers.h
> @@ -174,3 +174,19 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
>  	return n_mappings;
>  }
>  
> +/* dma_mmap_coherent callback function */
> +/* Note that this is no inline function -- this function is eventually
> + * included in ccio_ops in both ccio-dma.c and sba_iommu.c
> + */
> +static int iommu_dma_mmap_coherent(struct device *dev,
> +				   struct vm_area_struct *vma,
> +				   void *cpu_addr, dma_addr_t handle,
> +				   size_t size)
> +{
> +	struct page *pg;
> +	pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
> +	pg = virt_to_page(cpu_addr);
> +	return remap_pfn_range(vma, vma->vm_start,
> +			       page_to_pfn(pg) + vma->vm_pgoff,
> +			       size, vma->vm_page_prot);
> +}
> diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
> index 123d8fe..8ccb3e4 100644
> --- a/drivers/parisc/sba_iommu.c
> +++ b/drivers/parisc/sba_iommu.c
> @@ -1070,6 +1070,7 @@ static struct hppa_dma_ops sba_ops = {
>  	.dma_sync_single_for_device =	NULL,
>  	.dma_sync_sg_for_cpu =		NULL,
>  	.dma_sync_sg_for_device =	NULL,
> +	.mmap_coherent =	iommu_dma_mmap_coherent,
>  };

This isn't the right thing to do on parisc.  The only case that will
actually work is the small subset of pa11 systems where the only way we
can manufacture coherent memory is to turn the cache off.  One more
thing: even on pa11 you have to flush the cache lines before you make a
page uncached otherwise you can get coherency problems.

For pa20 systems, we have a cache flushing system on bus writes.  What
your patch does is turn off caching over the user page only.  This would
leave us with a cache over the kernel page, so any write the kernel
makes would need flushing before it's visible to the user, which isn't
how the kernel operates with coherent memory.

The only way to fix the above is either to make the user virtual address
congruent with the kernel one (VI congruence in parisc is steps of 4MB)
so they share the same cache (in which case they don't need the uncached
bit).  Or to make the coherent memory uncached when it's first
allocated ... this is a performance hit.

The design of coherent memory was for memory based device mailboxes
managed by the kernel ... trying to give userspace coherent access to
the same mailbox is problematic because it gives a direct way for the
process to interfere with a device function ... shouldn't whatever
you're trying to do be better accomplished by using an API to control
the device and keeping the coherent mailbox fully in the kernel address
space?

James


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: Wierd code in Entry.S
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On Thu, Jul 09, 2009 at 08:15:04PM -0400, John David Anglin wrote:
...
> > > The DEPI instruction on a 64-bit machine sets bit 44=32+12,
> > > whereas we use the value as the argument to IDTLBT, which expects bit 12  
> > > to be used instead.
> > >
> > > Does it mean that the U-bit is never set and the  
> > > authorization id gets corrupted???
> > 
> > U-bit will get set only if _PAGE_NO_CACHE_BIT+32 is also set.
...
> To me, it looks like the instruction should be a depdi.  See the preceding
> deposit of PAGE_USER.  According to the IDTLBT description, the U bit is
> bit 12 in r2, not bit 44.

Yes - I see it now too. Excellent catch.

But I'm still wondering what the effect of this bug will be.
The first order (not setting U-bit) should only affect ZX1 (pa8800/pa8900)
machines. Those have uncacheable IO space between 2GB-4GB physical address.
My guess is the machines should HPMC since the CPU would attempt to access
those ranges as a cacheline read/write instead of sub-cacheline transactions.

It's not clear from the arch manual what happens if bit 44 is set in R2.
I didn't look far enough to see where the auth ID gets corrupted.

thanks,
grant

> 
> rp3440 boots with the depdi change.  Building gcc...
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:34 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Wierd code in Entry.S
Date: Fri, 10 Jul 2009 15:52:51 +0000
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Cc: Grant Grundler <grundler@parisc-linux.org>,
	artem.alimarine@stromasys.com, linux-parisc@vger.kernel.org
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Thu, 2009-07-09 at 20:15 -0400, John David Anglin wrote:
> > On Thu, Jul 09, 2009 at 03:11:19PM +0200, Artem Alimarine wrote:
> > > Hi guys,
> > >
> > > I am new to PARISC and to this forum. I have a small question. There is  
> > > an instruction in entry.S that I do not understand. It is in the the  
> > > macro make_insert_tlb
> > >
> > > Kernel 2.6.26.2:
> > >
> > > 537        /* Enforce uncacheable pages.
> > > 538         * This should ONLY be use for MMIO on PA 2.0 machines.
> > > 539         * Memory/DMA is cache coherent on all PA2.0 machines we support
> > > 540         * (that means T-class is NOT supported) and the memory controllers
> > > 541         * on most of those machines only handles cache transactions.
> > > 542         */
> > > 543        extrd,u,*=      \pte,_PAGE_NO_CACHE_BIT+32,1,%r0
> > > 544        depi            1,12,1,\prot
> > >
> > >
> > 
> > The "*=" in line 543 will determine if "depi" instruction (line 544)
> > gets executed or not. You'll need the "PA-RISC 2.0 Architecture":
> >     http://www.parisc-linux.org/documentation/index.html
> >     http://ftp.parisc-linux.org/docs/arch/parisc2.0.pdf
> > 
> > And read page 7-47, 7-48, and Table D-14.
> > 
> > 
> > > The DEPI instruction on a 64-bit machine sets bit 44=32+12,
> > > whereas we use the value as the argument to IDTLBT, which expects bit 12  
> > > to be used instead.
> > >
> > > Does it mean that the U-bit is never set and the  
> > > authorization id gets corrupted???
> > 
> > U-bit will get set only if _PAGE_NO_CACHE_BIT+32 is also set.
> > 
> > The bit enumeration is *reverse* with MSb being 0 for all ASM instructions
> > and all references in the PA2.0 Arch manual.
> > 
> > Because this is a 64 bit build, "+32" is needed to refer to the lower half
> > of the double word (word == 32 bits).
> > 
> > > Is it a bug or my misunderstanding of the code???
> > 
> > It looks correct to me. "12" here always seems to refer to the U-bit as
> > defined in the PA2.0 Arch manual.
> 
> To me, it looks like the instruction should be a depdi.  See the preceding
> deposit of PAGE_USER.  According to the IDTLBT description, the U bit is
> bit 12 in r2, not bit 44.
> 
> rp3440 boots with the depdi change.  Building gcc...

Yes, looks like we've got a set of cockups in this file.  Apparently gas
is evaluating depi as the macro DEPI, which seems to be correct for
every other case in the file I've looked at except this one.

I suppose the whole file needs fixing ... preferably with a macro whose
name isn't an instruction mnemonic.

James


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From - Thu Nov 08 21:04:34 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Wierd code in Entry.S
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Cc: grundler@parisc-linux.org, artem.alimarine@stromasys.com,
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To: grundler@parisc-linux.org (Grant Grundler)
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> But I'm still wondering what the effect of this bug will be.
> The first order (not setting U-bit) should only affect ZX1 (pa8800/pa8900)
> machines. Those have uncacheable IO space between 2GB-4GB physical address.
> My guess is the machines should HPMC since the CPU would attempt to access
> those ranges as a cacheline read/write instead of sub-cacheline transactions.

I think the depdi change may fix the random memory corruption that
I have been complaining about.  My rp3440 has got through a full build
of GCC with 2.6.30.1.  Previous two attempts failed with segmentation
faults in the dynamic loader, one of which I reported on.  It will
take a few more builds to be sure.  Your comment would explain why I
don't see this on c3750.  Could this affect PA8700?

I installed the change on my rp3440, c3750 and gsyprf11 last night.
At some point, I need to test the change with an SMP build on the rp3440.

There is one other issue that I see on the rp3440 which I don't see
on the c3750 or gsyprf11.  I get occassional testsuite timeouts during
compilation on compilations that shouldn't timeout.  I had always
thought this to be a tcl/expect issue, but now I think this is likely
a kernel issue.  I need to change the timeout value in the testsuite
to something big so I can see what's happening.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:34 2018
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From: Artem Alimarine <artem.alimarine@stromasys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Wierd code in Entry.S
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Hi Grant,

Bit 44 falls into the access_id area. So, access id get corrupted. As 
far as I understand we should get interrupt 18 (access check trap) on 
such TLB  entries. However we do not. The bug can go unnoticed when the 
access id is smaller than 31 bits. The PA2.0 manual says in the IDTLBT 
description: If smaller than 31-bit access IDs are implemented, only the 
appropriate number of the
rightmost bits of GR[r]{32..62} are stored in the TLB. Obviously, bit 44 
is not among the stored bits.

Actually, I have no idea on how many bits are used by the hardware. 
Myself I have rp2470.

Best regards,
Artem

> But I'm still wondering what the effect of this bug will be.
> The first order (not setting U-bit) should only affect ZX1 (pa8800/pa8900)
> machines. Those have uncacheable IO space between 2GB-4GB physical address.
> My guess is the machines should HPMC since the CPU would attempt to access
> those ranges as a cacheline read/write instead of sub-cacheline transactions.
>
> It's not clear from the arch manual what happens if bit 44 is set in R2.
> I didn't look far enough to see where the auth ID gets corrupted.
>
>   

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From - Thu Nov 08 21:04:34 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Wierd code in Entry.S
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On Fri, 2009-07-10 at 11:55 -0400, John David Anglin wrote:
> > But I'm still wondering what the effect of this bug will be.
> > The first order (not setting U-bit) should only affect ZX1 (pa8800/pa8900)
> > machines. Those have uncacheable IO space between 2GB-4GB physical address.
> > My guess is the machines should HPMC since the CPU would attempt to access
> > those ranges as a cacheline read/write instead of sub-cacheline transactions.
> 
> I think the depdi change may fix the random memory corruption that
> I have been complaining about.  My rp3440 has got through a full build
> of GCC with 2.6.30.1.  Previous two attempts failed with segmentation
> faults in the dynamic loader, one of which I reported on.  It will
> take a few more builds to be sure.  Your comment would explain why I
> don't see this on c3750.  Could this affect PA8700?

In theory it would affect every box running a 64 bit kernel.  We
actually set PAGE_NO_CACHE on ioremaps(), so it's spreading out from the
PCI device space.

> I installed the change on my rp3440, c3750 and gsyprf11 last night.
> At some point, I need to test the change with an SMP build on the rp3440.

rp3440 is a pa88/8900 system?  We have ion in the test ring at
cupertino, it's a 4 CPU pa8900 ... I've been keeping it up to date with
debian testing.

> There is one other issue that I see on the rp3440 which I don't see
> on the c3750 or gsyprf11.  I get occassional testsuite timeouts during
> compilation on compilations that shouldn't timeout.  I had always
> thought this to be a tcl/expect issue, but now I think this is likely
> a kernel issue.  I need to change the timeout value in the testsuite
> to something big so I can see what's happening.

It sounds a bit like another caching issue ... perhaps a cached value
for a spinlock or futex making the thread thing the lock is held against
it when it isn't?

James


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This is a multi-part message in MIME format.
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Hi,
> Yes, looks like we've got a set of cockups in this file.  Apparently gas
> is evaluating depi as the macro DEPI, which seems to be correct for
> every other case in the file I've looked at except this one
What I saw is that in the end DEPDI opcode with bit 44 is generated for 
than instruction.

The macro make_insert_tlb is used with PA2.0 and thus with IDTLBT and 
make_insert_tlb_11 with PA1.1 and thus with IDTLBP. It would probably be 
enough to change DEPI into DEPDI in the 2.0 variant. I do not know 
whether there are more similar cases.

Best regards,
Artem

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From: Russell King <rmk@arm.linux.org.uk>
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Subject: Re: [PATCH 3/8] parisc: implement dma_mmap_coherent()
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On Fri, Jul 10, 2009 at 03:11:29PM +0000, James Bottomley wrote:
> The design of coherent memory was for memory based device mailboxes
> managed by the kernel ... trying to give userspace coherent access to
> the same mailbox is problematic because it gives a direct way for the
> process to interfere with a device function ... shouldn't whatever
> you're trying to do be better accomplished by using an API to control
> the device and keeping the coherent mailbox fully in the kernel address
> space?

As far as sound DMA goes, it's not about mailboxes.  It's about a circular
buffer which you want the device to DMA from direct to/from the DAC/ADC
and have the application write/read data directly to/from that same
buffer.

Without this, you end up having to copy the sound data - at something
around 200KB/s from applications into a driver managed buffer, which is
quite an unnecessary overhead for the CPU.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:

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On Fri, 2009-07-10 at 19:16 +0100, Russell King wrote:
> On Fri, Jul 10, 2009 at 03:11:29PM +0000, James Bottomley wrote:
> > The design of coherent memory was for memory based device mailboxes
> > managed by the kernel ... trying to give userspace coherent access to
> > the same mailbox is problematic because it gives a direct way for the
> > process to interfere with a device function ... shouldn't whatever
> > you're trying to do be better accomplished by using an API to control
> > the device and keeping the coherent mailbox fully in the kernel address
> > space?
> 
> As far as sound DMA goes, it's not about mailboxes.  It's about a circular
> buffer which you want the device to DMA from direct to/from the DAC/ADC
> and have the application write/read data directly to/from that same
> buffer.

But that makes it sound like ordinary streaming DMA from a device to
user space ... that's what the dma_map_xx APIs are already designed to
handle:  I don't understand why you need coherent memory for this (which
can be a scarce resource on some platforms).

> Without this, you end up having to copy the sound data - at something
> around 200KB/s from applications into a driver managed buffer, which is
> quite an unnecessary overhead for the CPU.

Why?  The dma_map_xx API is designed to be zero copy.

James



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On Fri, Jul 10, 2009 at 06:30:50PM +0000, James Bottomley wrote:
> On Fri, 2009-07-10 at 19:16 +0100, Russell King wrote:
> > As far as sound DMA goes, it's not about mailboxes.  It's about a circular
> > buffer which you want the device to DMA from direct to/from the DAC/ADC
> > and have the application write/read data directly to/from that same
> > buffer.
> 
> But that makes it sound like ordinary streaming DMA from a device to
> user space ... that's what the dma_map_xx APIs are already designed to
> handle:  I don't understand why you need coherent memory for this (which
> can be a scarce resource on some platforms).

The streaming APIs are inefficient for this.  Consider the overhead of
having to writeback and invalidate caches at 200KB/s (which is what
you're requiring ARM to do).  That's far too much CPU overhead.

It's much more efficient to use non-cached memory for this on ARM.

We've been doing this for years and years, it's well proven.

> Why?  The dma_map_xx API is designed to be zero copy.

Except with a rather large overhead of repetitive cache handling.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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> > I installed the change on my rp3440, c3750 and gsyprf11 last night.
> > At some point, I need to test the change with an SMP build on the rp3440.
> 
> rp3440 is a pa88/8900 system?

Yes, it's a four cpu pa8800.  It was ior.

Dave
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On Fri, 2009-07-10 at 19:39 +0100, Russell King wrote:
> On Fri, Jul 10, 2009 at 06:30:50PM +0000, James Bottomley wrote:
> > On Fri, 2009-07-10 at 19:16 +0100, Russell King wrote:
> > > As far as sound DMA goes, it's not about mailboxes.  It's about a circular
> > > buffer which you want the device to DMA from direct to/from the DAC/ADC
> > > and have the application write/read data directly to/from that same
> > > buffer.
> > 
> > But that makes it sound like ordinary streaming DMA from a device to
> > user space ... that's what the dma_map_xx APIs are already designed to
> > handle:  I don't understand why you need coherent memory for this (which
> > can be a scarce resource on some platforms).

> The streaming APIs are inefficient for this.  Consider the overhead of
> having to writeback and invalidate caches at 200KB/s (which is what
> you're requiring ARM to do).  That's far too much CPU overhead.

Um, but streaming APIs are what we use for all block and network I/O
from user space ... we don't see huge performance problems running up to
gigabits.  Even on parisc where we have to flush several times to make
this happen we can get up to several hundred megabytes per second.

> It's much more efficient to use non-cached memory for this on ARM.
> 
> We've been doing this for years and years, it's well proven.
> 
> > Why?  The dma_map_xx API is designed to be zero copy.
> 
> Except with a rather large overhead of repetitive cache handling.

OK, so this is the bit I don't get ... why isn't the streaming a problem
for I/O then, which even on arm wants far more than 200kb/s?

James


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From - Thu Nov 08 21:04:35 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Wierd code in Entry.S
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> Yes, looks like we've got a set of cockups in this file.  Apparently gas
> is evaluating depi as the macro DEPI, which seems to be correct for
> every other case in the file I've looked at except this one.

Yikes!  Macro and instruction mneumonics are case independent.  The
same issue applies to the EXTR and DEP macros.  It appears these macros
were intended to provide consistent PA 1.x and PA 2.0 mneumonics.
However, depwi isn't technically a valid PA 1.x instruction although
gas may not care.  This could present a problem for PA 1.x builds if
gas treats .level strictly.

The macro names really should be changed.  Looking at the code, I didn't
realize that depi was a macro...

> I suppose the whole file needs fixing ... preferably with a macro whose
> name isn't an instruction mnemonic.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> The macro names really should be changed.  Looking at the code, I didn't
> realize that depi was a macro...

It looks to me like these macros can be deleted.  For example, the PA 1.x
depi mneumonic is equivalent to the PA 2.0 depwi mneumonic.  See Table
J-2 in PA 2.0 arch.  There's no need for the 64-bit versions.  The PA 1.x
mneumonics are still valid in PA 2.0 assembler.  However, I would suggest
that the PA 2.0 mneumonics be used in PA 2.0 specific code.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> It looks to me like these macros can be deleted.  For example, the PA 1.x
> depi mneumonic is equivalent to the PA 2.0 depwi mneumonic.  See Table
> J-2 in PA 2.0 arch.  There's no need for the 64-bit versions.  The PA 1.x
> mneumonics are still valid in PA 2.0 assembler.  However, I would suggest
> that the PA 2.0 mneumonics be used in PA 2.0 specific code.

The following still boots (64-bit UP kernel).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index ae3e70c..896791a 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -364,32 +364,6 @@
 	.align		32
 	.endm
 
-	/* The following are simple 32 vs 64 bit instruction
-	 * abstractions for the macros */
-	.macro		EXTR	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	extrd,u		\reg1,32+(\start),\length,\reg2
-#else
-	extrw,u		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEP	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	depd		\reg1,32+(\start),\length,\reg2
-#else
-	depw		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEPI	val,start,length,reg
-#ifdef CONFIG_64BIT
-	depdi		\val,32+(\start),\length,\reg
-#else
-	depwi		\val,\start,\length,\reg
-#endif
-	.endm
-
 	/* In LP64, the space contains part of the upper 32 bits of the
 	 * fault.  We have to extract this and place it in the va,
 	 * zeroing the corresponding bits in the space register */
@@ -442,19 +416,19 @@
 	 */
 	.macro		L2_ptep	pmd,pte,index,va,fault
 #if PT_NLEVELS == 3
-	EXTR		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
+	extru		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
 #else
-	EXTR		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
+	extru		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 #endif
-	DEP             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	dep             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	copy		%r0,\pte
 	ldw,s		\index(\pmd),\pmd
 	bb,>=,n		\pmd,_PxD_PRESENT_BIT,\fault
-	DEP		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
+	dep		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
 	copy		\pmd,%r9
 	SHLREG		%r9,PxD_VALUE_SHIFT,\pmd
-	EXTR		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
-	DEP		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	extru		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
+	dep		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
 	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
 	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
@@ -553,7 +527,7 @@
 	 * on most of those machines only handles cache transactions.
 	 */
 	extrd,u,*=	\pte,_PAGE_NO_CACHE_BIT+32,1,%r0
-	depi		1,12,1,\prot
+	depdi		1,12,1,\prot
 
 	/* Drop prot bits and convert to page addr for iitlbt and idtlbt */
 	convert_for_tlb_insert20 \pte
@@ -605,7 +579,7 @@
 	depdi		0,31,32,\tmp
 #endif
 	copy		\va,\tmp1
-	DEPI		0,31,23,\tmp1
+	depi		0,31,23,\tmp1
 	cmpb,COND(<>),n	\tmp,\tmp1,\fault
 	ldi		(_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot
 	depd,z		\prot,8,7,\prot
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Status update on NPTL
Date: Sat, 11 Jul 2009 10:17:14 -0400
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	Kyle McMartin <kyle@mcmartin.ca>
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Deiban hppa users,

The NPTL patches were updated to 2.10 several weeks ago, but full
chroot testing showed that more complex applications like xhcat or
xterm would crash. My usability testing involves vnc4server +
x-window-manager + serveral X applications. If anyone has any other
use cases they would like me to test, please let me know.

I've been investigating the crashes, but because of problems with gdb
and strace I've had to take it slow. Kyle, I have your recent strace
patches in my queue to test. Thanks for that.

I've been building up a test case, and I can debug a simple nptl
threaded application with gdb.

The crashes in xterm using the new nptl libraries appear to be the NSS
modules (dynamically loaded modules).

I've augmented the testcase to use NSS, but I can still successfully
debug an nptl threaded application that uses NSS.

I have a couple more ideas to test, but after that my next step is to
rebuild xterm with debugging symbols and dig in to figure out exactly
what's crashing.

Thanks for your time!

Cheers,
Carlos,
-the-hppa-glibc-maintiner
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From - Thu Nov 08 21:04:35 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Status update on NPTL
Date: Sat, 11 Jul 2009 16:46:25 -0400
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On Sat, Jul 11, 2009 at 10:17:14AM -0400, Carlos O'Donell wrote:
> I've been investigating the crashes, but because of problems with gdb
> and strace I've had to take it slow. Kyle, I have your recent strace
> patches in my queue to test. Thanks for that.
> 

Which ones? It would be good if some heavy debugger users could test the
changes in the tracehook branch with coredumps... I'll try to do a build
of strace using PTRACE_{GET,SET}REGS instead of PEEK & POKE for extra
testing there as well, but it seems to be working well enough for me.

> I've been building up a test case, and I can debug a simple nptl
> threaded application with gdb.
> 
> The crashes in xterm using the new nptl libraries appear to be the NSS
> modules (dynamically loaded modules).
> 
> I've augmented the testcase to use NSS, but I can still successfully
> debug an nptl threaded application that uses NSS.
> 
> I have a couple more ideas to test, but after that my next step is to
> rebuild xterm with debugging symbols and dig in to figure out exactly
> what's crashing.
> 

Cool. Congrats!

regards, Kyle
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From - Thu Nov 08 21:04:35 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: Status update on NPTL
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On Sat, Jul 11, 2009 at 4:46 PM, Kyle McMartin<kyle@mcmartin.ca> wrote:
> On Sat, Jul 11, 2009 at 10:17:14AM -0400, Carlos O'Donell wrote:
>> I've been investigating the crashes, but because of problems with gdb
>> and strace I've had to take it slow. Kyle, I have your recent strace
>> patches in my queue to test. Thanks for that.
>>
>
> Which ones? It would be good if some heavy debugger users could test the
> changes in the tracehook branch with coredumps... I'll try to do a build
> of strace using PTRACE_{GET,SET}REGS instead of PEEK & POKE for extra
> testing there as well, but it seems to be working well enough for me.

If I understand correctly you added PTRACE_GETREGS and PTRACE_SETREGS
with this patch:
http://permalink.gmane.org/gmane.linux.ports.parisc/1882

Then you posted a patch to strace to use PTRACE_GETREGS and
PTRACE_SETREGS with this patch:
http://www.dailykos.com/storyonly/2009/7/10/752179/-What-staring-at-an-ass-really-looks-like

Is my understanding correct? I would need a kernel patch, an strace
patch, and then strace would be using PTRACE_GETREGS and
PTRACE_SETREGS?

How is the debugger involved in this?

Cheers,
Carlos.



From - Thu Nov 08 21:04:35 2018
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On Sat, Jul 11, 2009 at 5:06 PM, Carlos O'Donell<carlos@systemhalted.org> wrote:
> On Sat, Jul 11, 2009 at 4:46 PM, Kyle McMartin<kyle@mcmartin.ca> wrote:
>> On Sat, Jul 11, 2009 at 10:17:14AM -0400, Carlos O'Donell wrote:
>>> I've been investigating the crashes, but because of problems with gdb
>>> and strace I've had to take it slow. Kyle, I have your recent strace
>>> patches in my queue to test. Thanks for that.
>>>
>>
>> Which ones? It would be good if some heavy debugger users could test the
>> changes in the tracehook branch with coredumps... I'll try to do a build
>> of strace using PTRACE_{GET,SET}REGS instead of PEEK & POKE for extra
>> testing there as well, but it seems to be working well enough for me.
>
> If I understand correctly you added PTRACE_GETREGS and PTRACE_SETREGS
> with this patch:
> http://permalink.gmane.org/gmane.linux.ports.parisc/1882
>
> Then you posted a patch to strace to use PTRACE_GETREGS and
> PTRACE_SETREGS with this patch:
> http://www.dailykos.com/storyonly/2009/7/10/752179/-What-staring-at-an-ass-really-looks-like

Sorry, the corrected URL is this:
http://permalink.gmane.org/gmane.linux.ports.parisc/1883

Cheers,
Carlos.



From - Thu Nov 08 21:04:35 2018
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On Sat, Jul 11, 2009 at 05:06:52PM -0400, Carlos O'Donell wrote:
> On Sat, Jul 11, 2009 at 4:46 PM, Kyle McMartin<kyle@mcmartin.ca> wrote:
> > On Sat, Jul 11, 2009 at 10:17:14AM -0400, Carlos O'Donell wrote:
> >> I've been investigating the crashes, but because of problems with gdb
> >> and strace I've had to take it slow. Kyle, I have your recent strace
> >> patches in my queue to test. Thanks for that.
> >>
> >
> > Which ones? It would be good if some heavy debugger users could test the
> > changes in the tracehook branch with coredumps... I'll try to do a build
> > of strace using PTRACE_{GET,SET}REGS instead of PEEK & POKE for extra
> > testing there as well, but it seems to be working well enough for me.
> 
> If I understand correctly you added PTRACE_GETREGS and PTRACE_SETREGS
> with this patch:
> http://permalink.gmane.org/gmane.linux.ports.parisc/1882
> 
> Then you posted a patch to strace to use PTRACE_GETREGS and
> PTRACE_SETREGS with this patch:
> http://www.dailykos.com/storyonly/2009/7/10/752179/-What-staring-at-an-ass-really-looks-like
> 
> Is my understanding correct? I would need a kernel patch, an strace
> patch, and then strace would be using PTRACE_GETREGS and
> PTRACE_SETREGS?
> 
> How is the debugger involved in this?
> 

I haven't figured out how to make gdb use getregs/setregs yet. But if
coredumps continue to work, then the backend regset code is working.

Yeah, those patches should enable it for you. I forgot I posted the
strace ones.

regards, Kyle
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From - Thu Nov 08 21:04:35 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Sat, 2009-07-11 at 17:08 -0400, Carlos O'Donell wrote:
> On Sat, Jul 11, 2009 at 5:06 PM, Carlos O'Donell<carlos@systemhalted.org> wrote:
> > On Sat, Jul 11, 2009 at 4:46 PM, Kyle McMartin<kyle@mcmartin.ca> wrote:
> >> On Sat, Jul 11, 2009 at 10:17:14AM -0400, Carlos O'Donell wrote:
> >>> I've been investigating the crashes, but because of problems with gdb
> >>> and strace I've had to take it slow. Kyle, I have your recent strace
> >>> patches in my queue to test. Thanks for that.
> >>>
> >>
> >> Which ones? It would be good if some heavy debugger users could test the
> >> changes in the tracehook branch with coredumps... I'll try to do a build
> >> of strace using PTRACE_{GET,SET}REGS instead of PEEK & POKE for extra
> >> testing there as well, but it seems to be working well enough for me.
> >
> > If I understand correctly you added PTRACE_GETREGS and PTRACE_SETREGS
> > with this patch:
> > http://permalink.gmane.org/gmane.linux.ports.parisc/1882
> >
> > Then you posted a patch to strace to use PTRACE_GETREGS and
> > PTRACE_SETREGS with this patch:
> > http://www.dailykos.com/storyonly/2009/7/10/752179/-What-staring-at-an-ass-really-looks-like
> 
> Sorry, the corrected URL is this:
> http://permalink.gmane.org/gmane.linux.ports.parisc/1883

Don't apologise ... we're all intrigued by the interesting glimpse into
what you do in your other spare time ...

James


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From - Thu Nov 08 21:04:35 2018
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On Sat, Jul 11, 2009 at 5:45 PM, James
Bottomley<James.Bottomley@hansenpartnership.com> wrote:
>> > Then you posted a patch to strace to use PTRACE_GETREGS and
>> > PTRACE_SETREGS with this patch:
>> > http://www.dailykos.com/storyonly/2009/7/10/752179/-What-staring-at-an-ass-really-looks-like
>>
>> Sorry, the corrected URL is this:
>> http://permalink.gmane.org/gmane.linux.ports.parisc/1883
>
> Don't apologise ... we're all intrigued by the interesting glimpse into
> what you do in your other spare time ...

... surfing #parisc on irc.oftc.net :-)

Cheers,
Carlos.
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On Sun, Jun 21, 2009 at 06:55:21PM -0400, Carlos O'Donell wrote:
> On Tue, Jun 16, 2009 at 3:13 PM, Aurelien Jarno<aurelien@aurel32.net> wrote:
> > On Tue, Jun 16, 2009 at 09:08:37PM +0200, Helge Deller wrote:
> >> On 06/16/2009 08:25 AM, Lucas Nussbaum wrote:
> >>> On 15/06/09 at 11:31 -0600, Grant Grundler wrote:
> >>> PS: if you want an HPPA-specific issue to play with,
> >>> http://experimental.debian.net/fetch.php?&pkg=ruby1.9&ver=1.9.0.1-5&arch=hppa&stamp=1213563978&file=log&as=raw
> >>> might be a good candidate.
> >>
> >> In reality it's not (any longer) a hppa specific bug. It's a bug in ruby.
> >> Ruby just relies on NPTL specific behaviour of threads and as such plays mad on LinuxThreads, which we still have active on hppa.
> >> The good thing is, that the NPTL switch-over was started by Carlos, so I expect that this should be fixed when NPTL hits unstable...
> >>
> >
> > BTW, Carlos, could you please send me the latest version of your
> > patches, so that we can actually do the switch with version 2.10?
> >
> 
> The latest patches are now up.
> 
> Core glibc patch:
> http://www.parisc-linux.org/~carlos/2009-06-20-glibc-hppa-nptl.diff
> 
> Ports glibc patch:
> http://www.parisc-linux.org/~carlos/2009-06-20-glibc-ports-hppa-nptl.diff
> 
> No regressions in the testsuite for hppa-linux-gnu.
> 

I have just included these patches in the eglibc-2.10 branch of our SVN,
though currently the linuxthreads version is still built by default.

I got the following regressions in the NPTL build compared to the 
linuxthreads build:
| Encountered regressions that don't match expected failures:
| tst-cancelx20.out, Error 1
| tst-cancelx21.out, Error 1
| tst-cancelx4.out, Error 1
| tst-cancelx5.out, Error 1
| tst-cleanupx4.out, Error 1
| tst-cputimer1.out, Error 1
| tst-cputimer2.out, Error 1
| tst-cputimer3.out, Error 1
| tst-mqueue3.out, Error 1
| tststatic2.out, Error 1
| tststatic.out, Error 1
| tst-timer4.out, Error 1
| tst-timer5.out, Error 1
| tst-tls9-static.out, Error 1

Is it something expected?

-- 
Aurelien Jarno	                        GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net
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From - Thu Nov 08 21:04:35 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.release
Subject: Re: HPPA and Squeeze
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	 <20090606183600.GA425@lackof.org> <4A31FA76.20103@debian.org>
	 <20090615173102.GC2690@lackof.org>
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Cc: Lucas Nussbaum <lucas@lucas-nussbaum.net>,
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	Grant Grundler <grundler@parisc-linux.org>,
	HPPA porters <debian-hppa@lists.debian.org>,
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	linux-parisc@vger.kernel.org
To: Aurelien Jarno <aurelien@aurel32.net>
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On Sun, Jul 12, 2009 at 8:30 AM, Aurelien Jarno<aurelien@aurel32.net> wrote:
> I have just included these patches in the eglibc-2.10 branch of our SVN,
> though currently the linuxthreads version is still built by default.
>
> I got the following regressions in the NPTL build compared to the
> linuxthreads build:
> | Encountered regressions that don't match expected failures:
> | tst-cancelx20.out, Error 1
> | tst-cancelx21.out, Error 1
> | tst-cancelx4.out, Error 1
> | tst-cancelx5.out, Error 1
> | tst-cleanupx4.out, Error 1

These are expected regressions

> | tst-cputimer1.out, Error 1
> | tst-cputimer2.out, Error 1
> | tst-cputimer3.out, Error 1
> | tst-mqueue3.out, Error 1

So are these.

> | tststatic2.out, Error 1
> | tststatic.out, Error 1

These are not.

> | tst-timer4.out, Error 1
> | tst-timer5.out, Error 1

These are.

> | tst-tls9-static.out, Error 1

This is not.

I'm building my own set of patches for debian-glibc, I'll tell you
what my results are when I finish today.

Cheers,
Carlos.
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: Wierd code in Entry.S
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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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> > It looks to me like these macros can be deleted.  For example, the PA 1.x
> > depi mneumonic is equivalent to the PA 2.0 depwi mneumonic.  See Table
> > J-2 in PA 2.0 arch.  There's no need for the 64-bit versions.  The PA 1.x
> > mneumonics are still valid in PA 2.0 assembler.  However, I would suggest
> > that the PA 2.0 mneumonics be used in PA 2.0 specific code.

Sorry, the macros can't be removed.  The PA 1.x mneumonics result in undefined
behavior in the most sign-significant 32 bits.  The should just be renamed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:36 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: Wierd code in Entry.S
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On Sun, Jul 12, 2009 at 03:40:34PM -0400, John David Anglin wrote:
> > > It looks to me like these macros can be deleted.  For example, the PA 1.x
> > > depi mneumonic is equivalent to the PA 2.0 depwi mneumonic.  See Table
> > > J-2 in PA 2.0 arch.  There's no need for the 64-bit versions.  The PA 1.x
> > > mneumonics are still valid in PA 2.0 assembler.  However, I would suggest
> > > that the PA 2.0 mneumonics be used in PA 2.0 specific code.
> 
> Sorry, the macros can't be removed.  The PA 1.x mneumonics result in undefined
> behavior in the most sign-significant 32 bits.  The should just be renamed.
> 

Can someone distill all these mails into a patch? It will directly apply
to upstream and all the current stable releases, so a single patch
should suffice.

I'd do it myself, but I'm too busy writing a paper this week. :/

regards, Kyle
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From - Thu Nov 08 21:04:36 2018
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Subject: Re: Wierd code in Entry.S
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> Can someone distill all these mails into a patch? It will directly apply
> to upstream and all the current stable releases, so a single patch
> should suffice.
> 
> I'd do it myself, but I'm too busy writing a paper this week. :/

The most important change is attached.  Bit 12 needs to be set in the
protection register, not bit 44.  The change has had three days testing
on my rp3440 (PA8800) without any unusual segmentation faults.  Also,
tested on a couple of PA8700 machines.  This fixes the problem noticed
by Artem Alimarine.

At the moment, I don't have a change for the macros.  The DEP and DEPI
macros conflict with PA 1.x mneumonics.  So, they should be renamed.
I also think the 32-bit instructions in the macros should use PA 1.x
rather than 2.0 mneumonics.  The 1.x mneumonics should be ok for both
PA 1.x and 2.0.  It is possible that building for a PA 1.x machine might
not work with the current macros.  Maybe James has something for the
macros.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index ae3e70c..e552e54 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -553,7 +553,7 @@
 	 * on most of those machines only handles cache transactions.
 	 */
 	extrd,u,*=	\pte,_PAGE_NO_CACHE_BIT+32,1,%r0
-	depi		1,12,1,\prot
+	depdi		1,12,1,\prot
 
 	/* Drop prot bits and convert to page addr for iitlbt and idtlbt */
 	convert_for_tlb_insert20 \pte
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From - Thu Nov 08 21:04:36 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Wierd code in Entry.S
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On Sun, Jul 12, 2009 at 09:44:37PM -0400, John David Anglin wrote:
> > Can someone distill all these mails into a patch? It will directly apply
> > to upstream and all the current stable releases, so a single patch
> > should suffice.
> > 
> > I'd do it myself, but I'm too busy writing a paper this week. :/
> 
> The most important change is attached.  Bit 12 needs to be set in the
> protection register, not bit 44.  The change has had three days testing
> on my rp3440 (PA8800) without any unusual segmentation faults.  Also,
> tested on a couple of PA8700 machines.  This fixes the problem noticed
> by Artem Alimarine.
> 
> At the moment, I don't have a change for the macros.  The DEP and DEPI
> macros conflict with PA 1.x mneumonics.  So, they should be renamed.
> I also think the 32-bit instructions in the macros should use PA 1.x
> rather than 2.0 mneumonics.  The 1.x mneumonics should be ok for both
> PA 1.x and 2.0.  It is possible that building for a PA 1.x machine might
> not work with the current macros.  Maybe James has something for the
> macros.
> 

Great. May I append a Signed-off-by: John David Anglin
<dave@hiauly1.hia.nrc.ca>?

cheers, Kyle
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From - Thu Nov 08 21:04:36 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Wierd code in Entry.S
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> Great. May I append a Signed-off-by: John David Anglin
> <dave@hiauly1.hia.nrc.ca>?

Yes, but change the email to <dave.anglin@nrc-cnrc.gc.ca>.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Jul 12, 2009 at 10:52 AM, Carlos
O'Donell<carlos@systemhalted.org> wrote:
> I'm building my own set of patches for debian-glibc, I'll tell you
> what my results are when I finish today.

I had to restart the build last night, and it's building right now. I
should have test results within 2 hours.

I have trimmed debian-release from the CC.

Thanks.

Cheers,
Carlos.
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From - Thu Nov 08 21:04:36 2018
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On Fri, Jul 10, 2009 at 11:18:21AM -0500, James Bottomley wrote:
> On Fri, 2009-07-10 at 11:55 -0400, John David Anglin wrote:
...
> > Your comment would explain why I
> > don't see this on c3750.  Could this affect PA8700?
> 
> In theory it would affect every box running a 64 bit kernel.

Yes, regarding corrupting bit-44 but not U-bit.

IIRC, only pa880 and pa8900 pay attention to the U-bit.
I thought all the previous CPUs ignored U-bit.

> We
> actually set PAGE_NO_CACHE on ioremaps(), so it's spreading out from the
> PCI device space.

Yes - but only ZX1 chipset (e.g. rp3440 and C8000) uses IO space that
is outside of F-space. F-space is hardwired to be uncachable by the CPU.

hth,
grant
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: Wierd code in Entry.S
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Cc: Grant Grundler <grundler@parisc-linux.org>,
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On Fri, Jul 10, 2009 at 06:11:35PM +0200, Artem Alimarine wrote:
> Hi Grant,
>
> Bit 44 falls into the access_id area. So, access id get corrupted. As  
> far as I understand we should get interrupt 18 (access check trap) on  
> such TLB  entries. However we do not. The bug can go unnoticed when the  
> access id is smaller than 31 bits. The PA2.0 manual says in the IDTLBT  
> description: If smaller than 31-bit access IDs are implemented, only the  
> appropriate number of the
> rightmost bits of GR[r]{32..62} are stored in the TLB. Obviously, bit 44  
> is not among the stored bits.

Ok - thanks for looking that up. CPU specific ERS would contain the
details that describe access ID implementations.

> Actually, I have no idea on how many bits are used by the hardware.  
> Myself I have rp2470.

Yeah, that's Astro/Elroy and not ZX1. So should not be affected
by the U-bit being mis-set.

thanks,
grant
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From - Thu Nov 08 21:04:37 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Wierd code in Entry.S
Date: Wed, 15 Jul 2009 08:41:30 -0400
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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To: Grant Grundler <grundler@parisc-linux.org>
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On Wed, 2009-07-15 at 00:38 -0600, Grant Grundler wrote:
> On Fri, Jul 10, 2009 at 11:18:21AM -0500, James Bottomley wrote:
> > On Fri, 2009-07-10 at 11:55 -0400, John David Anglin wrote:
> ...
> > > Your comment would explain why I
> > > don't see this on c3750.  Could this affect PA8700?
> > 
> > In theory it would affect every box running a 64 bit kernel.
> 
> Yes, regarding corrupting bit-44 but not U-bit.
> 
> IIRC, only pa880 and pa8900 pay attention to the U-bit.
> I thought all the previous CPUs ignored U-bit.

Um, no, almost all pa chips use it ... it's the way we make coherent
memory on the very old 710 and similar systems: use an ordinary kmalloc
and turn off caching in the map.  The 715 class systems with the oldest
pa chips don't respect the U bit ... these are the ones we have to pull
the driver cache flushing tricks on to get them working.

We also use the U bit for ioremaps.

> > We
> > actually set PAGE_NO_CACHE on ioremaps(), so it's spreading out from the
> > PCI device space.
> 
> Yes - but only ZX1 chipset (e.g. rp3440 and C8000) uses IO space that
> is outside of F-space. F-space is hardwired to be uncachable by the CPU.

OK, so we don't really use the concept of F-Space in the linux kernel
virtual memory map on parisc linux.  What we do is map the whole of
memory into the virtual address space, but none of the I/O space.  the
readX/writeX macros actually go via absolute accesses.  Because the
kernel virtual addresses are offset mapped from the absolute addresses,
we do get a hole in the virtual map corresponding to F-Space (simply
because there's no accessible memory there) but we're actually able to
fill that hole later with virtual mappings if we choose.  The net result
is that I/O devices aren't mapped into the kernel at all until we call
ioremap.  If a device uses readX/writeX only, it never actually gets an
appearance in our virtual space because we simply use absolute accesses
to get the data to and from the device.  If it really needs a remapped
area, we use ioremap, then it does appear in our virtual map, and we set
the U bit on the mapping.

James


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From - Thu Nov 08 21:04:37 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: Wierd code in Entry.S
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On Wed, Jul 15, 2009 at 08:41:30AM -0400, James Bottomley wrote:
> On Wed, 2009-07-15 at 00:38 -0600, Grant Grundler wrote:
> > IIRC, only pa880 and pa8900 pay attention to the U-bit.
> > I thought all the previous CPUs ignored U-bit.
> 
> Um, no, almost all pa chips use it ... it's the way we make coherent
> memory on the very old 710 and similar systems: use an ordinary kmalloc
> and turn off caching in the map.  The 715 class systems with the oldest
> pa chips don't respect the U bit ... these are the ones we have to pull
> the driver cache flushing tricks on to get them working.

Even the 715-class systems respect the U bit.  The problem is that
the memory controller in use on those platforms cannot cope with
sub-cacheline-size accesses to memory.  So if we were to set the U bit
on memory, we would crash.

> > Yes - but only ZX1 chipset (e.g. rp3440 and C8000) uses IO space that
> > is outside of F-space. F-space is hardwired to be uncachable by the CPU.
> 
> OK, so we don't really use the concept of F-Space in the linux kernel
> virtual memory map on parisc linux.  What we do is map the whole of
> memory into the virtual address space, but none of the I/O space.  the
> readX/writeX macros actually go via absolute accesses.  Because the

Uhm, no.  The gsc_read/writeX macros go via absolute accesses.
__raw_read/writeX go via ioremapped addresses, as do the more common
readX/writeX.

> kernel virtual addresses are offset mapped from the absolute addresses,
> we do get a hole in the virtual map corresponding to F-Space (simply
> because there's no accessible memory there) but we're actually able to
> fill that hole later with virtual mappings if we choose.  The net result
> is that I/O devices aren't mapped into the kernel at all until we call
> ioremap.  If a device uses readX/writeX only, it never actually gets an
> appearance in our virtual space because we simply use absolute accesses
> to get the data to and from the device.  If it really needs a remapped
> area, we use ioremap, then it does appear in our virtual map, and we set
> the U bit on the mapping.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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New xxx experinece! http://qsgf.djojoyih.cn/

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From: Takashi Iwai <tiwai@suse.de>
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Subject: Re: [PATCH 3/8] parisc: implement dma_mmap_coherent()
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[Sorry for the late follow-up as I've been absent]

At Fri, 10 Jul 2009 18:59:23 +0000,
James Bottomley wrote:
> 
> On Fri, 2009-07-10 at 19:39 +0100, Russell King wrote:
> > On Fri, Jul 10, 2009 at 06:30:50PM +0000, James Bottomley wrote:
> > > On Fri, 2009-07-10 at 19:16 +0100, Russell King wrote:
> > > > As far as sound DMA goes, it's not about mailboxes.  It's about a circular
> > > > buffer which you want the device to DMA from direct to/from the DAC/ADC
> > > > and have the application write/read data directly to/from that same
> > > > buffer.
> > > 
> > > But that makes it sound like ordinary streaming DMA from a device to
> > > user space ... that's what the dma_map_xx APIs are already designed to
> > > handle:  I don't understand why you need coherent memory for this (which
> > > can be a scarce resource on some platforms).
> 
> > The streaming APIs are inefficient for this.  Consider the overhead of
> > having to writeback and invalidate caches at 200KB/s (which is what
> > you're requiring ARM to do).  That's far too much CPU overhead.
> 
> Um, but streaming APIs are what we use for all block and network I/O
> from user space ... we don't see huge performance problems running up to
> gigabits.  Even on parisc where we have to flush several times to make
> this happen we can get up to several hundred megabytes per second.

Well, the requirement of the non-streaming mmap is rather a historical
reason.  From the fairly early time, the sound driver provided the
mmap of a whole ring buffer since it's practical and efficient for
real-time sound processes.  But, usually the mmap mode is optional.
If it's not supported, apps should fall back to the normal read/write
mode.

Now, the problem is that we have no way to tell whether the DMA
ring-buffer mmap is available or not on each architecture.  So, my
proposal has basically two meanings:

- clarify which arch / platform supports the coherent DMA mapping
  of a whole ring-buffer
- provide the same API to cover the possible archs / platforms

In that sense, if a few (or all) PA-RISC platforms don't give the
proper coherent mapping that the sound apps require, it's OK.  We
just drop the flag in the driver as "unsupported", then.

So... before going to the detail of PA-RISC implementation, I'd like
to know your opinions: whether applying dma_mmap_coherent() to
possible archs/platforms is a reasonable solution for such a
scenario.

[Why not using the standard map->sync procedure is another level of
 question :)  My goal here is to improve the current (partly broken)
 situation in a minimal effort.  The change of mmap procedure would
 lead to major rewrites of API, and thus has to be discussed more
 deeply.]

Any comments appreciated.


thanks,

Takashi

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Cc: Russell King <rmk@arm.linux.org.uk>, linux-arch@vger.kernel.org,
	Gerhard Pircher <gerhard_pircher@gmx.net>,
	Parisc List <linux-parisc@vger.kernel.org>
To: Takashi Iwai <tiwai@suse.de>
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On Fri, 2009-07-17 at 16:13 +0200, Takashi Iwai wrote:
> [Sorry for the late follow-up as I've been absent]
> 
> At Fri, 10 Jul 2009 18:59:23 +0000,
> James Bottomley wrote:
> > 
> > On Fri, 2009-07-10 at 19:39 +0100, Russell King wrote:
> > > On Fri, Jul 10, 2009 at 06:30:50PM +0000, James Bottomley wrote:
> > > > On Fri, 2009-07-10 at 19:16 +0100, Russell King wrote:
> > > > > As far as sound DMA goes, it's not about mailboxes.  It's about a circular
> > > > > buffer which you want the device to DMA from direct to/from the DAC/ADC
> > > > > and have the application write/read data directly to/from that same
> > > > > buffer.
> > > > 
> > > > But that makes it sound like ordinary streaming DMA from a device to
> > > > user space ... that's what the dma_map_xx APIs are already designed to
> > > > handle:  I don't understand why you need coherent memory for this (which
> > > > can be a scarce resource on some platforms).
> > 
> > > The streaming APIs are inefficient for this.  Consider the overhead of
> > > having to writeback and invalidate caches at 200KB/s (which is what
> > > you're requiring ARM to do).  That's far too much CPU overhead.
> > 
> > Um, but streaming APIs are what we use for all block and network I/O
> > from user space ... we don't see huge performance problems running up to
> > gigabits.  Even on parisc where we have to flush several times to make
> > this happen we can get up to several hundred megabytes per second.
> 
> Well, the requirement of the non-streaming mmap is rather a historical
> reason.  From the fairly early time, the sound driver provided the
> mmap of a whole ring buffer since it's practical and efficient for
> real-time sound processes.  But, usually the mmap mode is optional.
> If it's not supported, apps should fall back to the normal read/write
> mode.

But what I don't understand is why you can't treat the ring buffer as
streaming.  Sure, you have a head pointer and a tail pointer, but
everything between head and tail is owned by the device and everything
between tail and head is owned by the kernel, surely?  In that case, you
can manipulate head and tail movements simply via the streaming API?
(when head moves, map the delta to the device; when tail moves, map the
delta to the kernel) and we can simply then use the standard APIs?

> Now, the problem is that we have no way to tell whether the DMA
> ring-buffer mmap is available or not on each architecture.  So, my
> proposal has basically two meanings:
> 
> - clarify which arch / platform supports the coherent DMA mapping
>   of a whole ring-buffer
> - provide the same API to cover the possible archs / platforms
> 
> In that sense, if a few (or all) PA-RISC platforms don't give the
> proper coherent mapping that the sound apps require, it's OK.  We
> just drop the flag in the driver as "unsupported", then.

That would work for us too ... I can see that x86 will have little
problem with this, but I can predict that most other architectures will
have some difficulty.

> So... before going to the detail of PA-RISC implementation, I'd like
> to know your opinions: whether applying dma_mmap_coherent() to
> possible archs/platforms is a reasonable solution for such a
> scenario.

Realistically, the only way to make it work as you want on parisc is to
have a kernel/user congruence (it's an address rule [virtual addresses
are equal modulo the congruence step, which is 4MB]) which would ensure
this would work without flushing ... that's hard for the kernel to make
happen on its own.

> [Why not using the standard map->sync procedure is another level of
>  question :)  My goal here is to improve the current (partly broken)
>  situation in a minimal effort.  The change of mmap procedure would
>  lead to major rewrites of API, and thus has to be discussed more
>  deeply.]

So, yes, there is an equivalent used by the frame buffer which basically
tries to place a dma mapped page into a user address space ... that
might also work in this case.

> Any comments appreciated.

James


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From - Thu Nov 08 21:04:37 2018
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At Fri, 17 Jul 2009 19:16:49 +0000,
James Bottomley wrote:
> 
> On Fri, 2009-07-17 at 16:13 +0200, Takashi Iwai wrote:
> > [Sorry for the late follow-up as I've been absent]
> > 
> > At Fri, 10 Jul 2009 18:59:23 +0000,
> > James Bottomley wrote:
> > > 
> > > On Fri, 2009-07-10 at 19:39 +0100, Russell King wrote:
> > > > On Fri, Jul 10, 2009 at 06:30:50PM +0000, James Bottomley wrote:
> > > > > On Fri, 2009-07-10 at 19:16 +0100, Russell King wrote:
> > > > > > As far as sound DMA goes, it's not about mailboxes.  It's about a circular
> > > > > > buffer which you want the device to DMA from direct to/from the DAC/ADC
> > > > > > and have the application write/read data directly to/from that same
> > > > > > buffer.
> > > > > 
> > > > > But that makes it sound like ordinary streaming DMA from a device to
> > > > > user space ... that's what the dma_map_xx APIs are already designed to
> > > > > handle:  I don't understand why you need coherent memory for this (which
> > > > > can be a scarce resource on some platforms).
> > > 
> > > > The streaming APIs are inefficient for this.  Consider the overhead of
> > > > having to writeback and invalidate caches at 200KB/s (which is what
> > > > you're requiring ARM to do).  That's far too much CPU overhead.
> > > 
> > > Um, but streaming APIs are what we use for all block and network I/O
> > > from user space ... we don't see huge performance problems running up to
> > > gigabits.  Even on parisc where we have to flush several times to make
> > > this happen we can get up to several hundred megabytes per second.
> > 
> > Well, the requirement of the non-streaming mmap is rather a historical
> > reason.  From the fairly early time, the sound driver provided the
> > mmap of a whole ring buffer since it's practical and efficient for
> > real-time sound processes.  But, usually the mmap mode is optional.
> > If it's not supported, apps should fall back to the normal read/write
> > mode.
> 
> But what I don't understand is why you can't treat the ring buffer as
> streaming.

We could, if we want.  The problem is only that the existing sound
mmap API since over 10 years ago requires the whole ring-buffer to be
exposed, to be accessible without sync operation.

>  Sure, you have a head pointer and a tail pointer, but
> everything between head and tail is owned by the device and everything
> between tail and head is owned by the kernel, surely?  In that case, you
> can manipulate head and tail movements simply via the streaming API?
> (when head moves, map the delta to the device; when tail moves, map the
> delta to the kernel) and we can simply then use the standard APIs?

That's a good thing for the future :)

> > Now, the problem is that we have no way to tell whether the DMA
> > ring-buffer mmap is available or not on each architecture.  So, my
> > proposal has basically two meanings:
> > 
> > - clarify which arch / platform supports the coherent DMA mapping
> >   of a whole ring-buffer
> > - provide the same API to cover the possible archs / platforms
> > 
> > In that sense, if a few (or all) PA-RISC platforms don't give the
> > proper coherent mapping that the sound apps require, it's OK.  We
> > just drop the flag in the driver as "unsupported", then.
> 
> That would work for us too ... I can see that x86 will have little
> problem with this, but I can predict that most other architectures will
> have some difficulty.

Yes, appears like so...

> > So... before going to the detail of PA-RISC implementation, I'd like
> > to know your opinions: whether applying dma_mmap_coherent() to
> > possible archs/platforms is a reasonable solution for such a
> > scenario.
> 
> Realistically, the only way to make it work as you want on parisc is to
> have a kernel/user congruence (it's an address rule [virtual addresses
> are equal modulo the congruence step, which is 4MB]) which would ensure
> this would work without flushing ... that's hard for the kernel to make
> happen on its own.

Hmm.  So, maybe enabling dma_mmap_coherent() for PA-RISC isn't worth,
at least, for the sound device mmap.

> > [Why not using the standard map->sync procedure is another level of
> >  question :)  My goal here is to improve the current (partly broken)
> >  situation in a minimal effort.  The change of mmap procedure would
> >  lead to major rewrites of API, and thus has to be discussed more
> >  deeply.]
> 
> So, yes, there is an equivalent used by the frame buffer which basically
> tries to place a dma mapped page into a user address space ... that
> might also work in this case.

Sorry for ignorance, but doesn't fb-mmap work in a way like the sound
apps expect?  Or does it require any map->sync operation?


thanks,

Takashi
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From - Thu Nov 08 21:04:37 2018
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From: Michael Buesch <mb@bu3sch.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc-isa-eeprom: Fix loff_t usage
Date: Tue, 21 Jul 2009 00:58:44 +0200
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loff_t is a signed type. If userspace passes a negative ppos, the "count"
range check is weakened. "count"s bigger than HPEE_MAX_LENGTH will pass the check.
Also, if ppos is negative, the readb(eisa_eeprom_addr + *ppos) will poke in random
memory.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: stable@kernel.org

---

Patch is untested due to lack of hardware.

---
 drivers/parisc/eisa_eeprom.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.orig/drivers/parisc/eisa_eeprom.c
+++ linux-2.6/drivers/parisc/eisa_eeprom.c
@@ -48,21 +48,21 @@ static loff_t eisa_eeprom_llseek(struct 
 	return (offset >= 0 && offset < HPEE_MAX_LENGTH) ? (file->f_pos = offset) : -EINVAL;
 }
 
 static ssize_t eisa_eeprom_read(struct file * file,
 			      char __user *buf, size_t count, loff_t *ppos )
 {
 	unsigned char *tmp;
 	ssize_t ret;
 	int i;
 	
-	if (*ppos >= HPEE_MAX_LENGTH)
+	if (*ppos < 0 || *ppos >= HPEE_MAX_LENGTH)
 		return 0;
 	
 	count = *ppos + count < HPEE_MAX_LENGTH ? count : HPEE_MAX_LENGTH - *ppos;
 	tmp = kmalloc(count, GFP_KERNEL);
 	if (tmp) {
 		for (i = 0; i < count; i++)
 			tmp[i] = readb(eisa_eeprom_addr+(*ppos)++);
 
 		if (copy_to_user (buf, tmp, count))
 			ret = -EFAULT;

-- 
Greetings, Michael.
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Wierd code in Entry.S
Date: Tue, 21 Jul 2009 23:34:53 -0600
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Cc: Grant Grundler <grundler@parisc-linux.org>,
	John David Anglin <dave@hiauly1.hia.nrc.ca>,
	artem.alimarine@stromasys.com, linux-parisc@vger.kernel.org
To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Wed, Jul 15, 2009 at 08:41:30AM -0400, James Bottomley wrote:
> On Wed, 2009-07-15 at 00:38 -0600, Grant Grundler wrote:
> > On Fri, Jul 10, 2009 at 11:18:21AM -0500, James Bottomley wrote:
> > > On Fri, 2009-07-10 at 11:55 -0400, John David Anglin wrote:
> > ...
> > > > Your comment would explain why I
> > > > don't see this on c3750.  Could this affect PA8700?
> > > 
> > > In theory it would affect every box running a 64 bit kernel.
> > 
> > Yes, regarding corrupting bit-44 but not U-bit.
> > 
> > IIRC, only pa880 and pa8900 pay attention to the U-bit.
> > I thought all the previous CPUs ignored U-bit.
> 
> Um, no, almost all pa chips use it ... it's the way we make coherent
> memory on the very old 710 and similar systems: use an ordinary kmalloc
> and turn off caching in the map.  The 715 class systems with the oldest
> pa chips don't respect the U bit ... these are the ones we have to pull
> the driver cache flushing tricks on to get them working.

Sorry - I was thinking only in the context of F-space but didn't make
that distinction clear.  I wasn't thinking about about the use of U-bit
for DMA coherence. 

thanks,
grant

> We also use the U bit for ioremaps.
> 
> > > We
> > > actually set PAGE_NO_CACHE on ioremaps(), so it's spreading out from the
> > > PCI device space.
> > 
> > Yes - but only ZX1 chipset (e.g. rp3440 and C8000) uses IO space that
> > is outside of F-space. F-space is hardwired to be uncachable by the CPU.
> 
> OK, so we don't really use the concept of F-Space in the linux kernel
> virtual memory map on parisc linux.  What we do is map the whole of
> memory into the virtual address space, but none of the I/O space.  the
> readX/writeX macros actually go via absolute accesses.  Because the
> kernel virtual addresses are offset mapped from the absolute addresses,
> we do get a hole in the virtual map corresponding to F-Space (simply
> because there's no accessible memory there) but we're actually able to
> fill that hole later with virtual mappings if we choose.  The net result
> is that I/O devices aren't mapped into the kernel at all until we call
> ioremap.  If a device uses readX/writeX only, it never actually gets an
> appearance in our virtual space because we simply use absolute accesses
> to get the data to and from the device.  If it really needs a remapped
> area, we use ioremap, then it does appear in our virtual map, and we set
> the U bit on the mapping.
> 
> James
> 
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From: Julia Lawall <julia@diku.dk>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.janitors
Subject: [PATCH 5/12] drivers/parisc: Correct redundant test
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From: Julia Lawall <julia@diku.dk>

pa_pdc_cell has already been tested.  It seems that this test should be on the
recently returned value io_pdc_cell.

A simplified version of the semantic match that finds this problem is as
follows: (http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
expression E;
@@

if (x == NULL || ...) { ... when forall
   return ...; }
... when != \(x=E\|x--\|x++\|--x\|++x\|x-=E\|x+=E\|x|=E\|x&=E\|&x\)
(
*x == NULL
|
*x != NULL
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
 drivers/parisc/lba_pci.c            |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index ede6146..3aeb327 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -992,7 +992,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 		return;
 
 	io_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t), GFP_KERNEL);
-	if (!pa_pdc_cell) {
+	if (!io_pdc_cell) {
 		kfree(pa_pdc_cell);
 		return;
 	}
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From: Stoyan Gaydarov <sgayda2@uiuc.edu>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 3/4] [parisc] fixed faulty check
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This patche fixes a spelling error that has resulted from copy and pasting. The location of the error was found using a semantic patch but the semantic patch was not trying to find these errors. After looking things over it seemed logical that this change was needed. Please review it and then include the patch if it is in fact the correct change.

Signed-off-by: Stoyan Gaydarov <sgayda2@uiuc.edu>
---
 drivers/parisc/lba_pci.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index ede6146..3aeb327 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -992,7 +992,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 		return;
 
 	io_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t), GFP_KERNEL);
-	if (!pa_pdc_cell) {
+	if (!io_pdc_cell) {
 		kfree(pa_pdc_cell);
 		return;
 	}
-- 
1.6.3.3


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From: Meelis Roos <mroos@linux.ee>
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> > 0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
> > 0x5800087000FF6292 00006D05 0F092C37 - type 11 = Timestamp 06/15/2009 09:44:55
> 
> I believe FF6292 is a HPMC.  Please collect and post the "ser pim" output
> for the above.  It would also help if the location of the HPMC can be related
> to your compiled kernel using objdump.

Well, it took some time, but I'm back to it. I rebooted a 
Debian-packaged kernel and got SER PIM output as well for the same boot. 
I also checked that there's nothing more in GSP console log.

As I can't boot it up with any kernel currently, I could not objdump the 
specific image, but I know it's 2.6.29-5 version of Debian 
2.6.29-2-parisc64-smp kernel. Will investigate if I get a match - what 
address should I be decoding?

Main Menu: Enter command or menu > bo
NOTICE: System integrity at risk when selftest(s) are disabled.
        Enabling selftests with "ser sel on" will prevent this note.
        Do you wish to continue the boot?  [Y] or N: y
Interact with IPL (Y, N, or Cancel)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.14 root@penalosa Wed Oct  8 15:04:37 UTC 2008
Skipping extended partition 6 - beyond reach of IPL

Partition Start(MB) End(MB) Id Type
1               1      31   f0 Palo
2              32     156   83 ext2
5             157   33408   83 ext2

PALO(F0) partition contains:
    0/vmlinux64 6240197 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).Current command line:
2/vmlinux root=/dev/sda5 initrd=2/initrd.img HOME=/ console=ttyS0 TERM=vt102
 0: 2/vmlinux
 1: root=/dev/sda5
 2: initrd=2/initrd.img
 3: HOME=/
 4: console=ttyS0
 5: TERM=vt102

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? 0 l
Directory listing of /.

  lost+found
  vmlinux
  initrd.img-2.6.29-rc1.bak
  initrd.img
  vmlinux.old
  System.map-2.6.29-rc1
  vmlinux-2.6.29-rc1
  config-2.6.29-rc8
  System.map-2.6.29-rc8
  vmlinux-2.6.29-rc8
  initrd.img-2.6.29-rc8
  config-2.6.29-rc1
  initrd.img-2.6.29-rc1
  System.map-2.6.26-1-parisc64-smp
  System.map-2.6.26-1-parisc64
  config-2.6.26-1-parisc64
  vmlinux-2.6.26-1-parisc64
  vmlinux-2.6.26-1-parisc64-smp
  config-2.6.26-1-parisc64-smp
  initrd.img-2.6.26-1-parisc64-smp
  initrd.img-2.6.26-1-parisc64
  initrd.img.old
  initrd.img-2.6.26-1-parisc64-smp.bak
  System.map-2.6.29-2-parisc64-smp
  vmlinux-2.6.29-2-parisc64-smp
  config-2.6.29-2-parisc64-smp
  initrd.img-2.6.29-2-parisc64-smp

Current command line:
2/vmlinux root=/dev/sda5 initrd=2/initrd.img HOME=/ console=ttyS0 TERM=vt102
 0: 2/vmlinux
 1: root=/dev/sda5
 2: initrd=2/initrd.img
 3: HOME=/
 4: console=ttyS0
 5: TERM=vt102

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? 0
2/vmlinux-2.6.29-2-parisc64-smp
Current command line:
2/vmlinux-2.6.29-2-parisc64-smp root=/dev/sda5 initrd=2/initrd.img HOME=/ console=ttyS0 TERM=vt102
 0: 2/vmlinux-2.6.29-2-parisc64-smp
 1: root=/dev/sda5
 2: initrd=2/initrd.img
 3: HOME=/
 4: console=ttyS0
 5: TERM=vt102

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? 0 2
initrd=2/initrd.img-2.6.29-2-parisc64-smp
Current command line:
2/vmlinux-2.6.29-2-parisc64-smp root=/dev/sda5 initrd=2/initrd.img-2.6.29-2-parisc64-smp HOME=/ console=ttyS0 TERM=vt102
 0: 2/vmlinux-2.6.29-2-parisc64-smp
 1: root=/dev/sda5
 2: initrd=2/initrd.img-2.6.29-2-parisc64-smp
 3: HOME=/
 4: console=ttyS0
 5: TERM=vt102

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? 0 b

Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.29-2-parisc64-smp'
Selected kernel: /vmlinux-2.6.29-2-parisc64-smp from partition 2
Selected ramdisk: /initrd.img-2.6.29-2-parisc64-smp from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4784128 mediaptr 0x1000
Segment 1 load 00628000 size 403984 mediaptr 0x491000
Segment 2 load 0068c000 size 317824 mediaptr 0x4f4000
Loading ramdisk 7887983 bytes @ 3f868000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.29-2-parisc64-smp (Debian 2.6.29-5) (waldi@debian.org) (gcc version 4.3.3 (GCC) ) #1 SMP Mon May 18 14:55:30 UTC 2009
[    0.000000] unwind_init: start = 0x404bf0a4, end = 0x404eb424, entries = 11320
[    0.000000] WARNING: Out of order unwind entry! 00000000404c0fb4 and 00000000404c0fc4
[    0.000000] WARNING: Out of order unwind entry! 00000000404c0fc4 and 00000000404c0fd4
[    0.000000] FP[0] enabled: Rev 1 Model 16
[    0.000000] The 64-bit Kernel has started...
[    0.000000] console [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00005c90 00000491 00000000 00000002 2353fbcb 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000203
[    0.000000] CPUID vers 17 rev 8 (0x00000228)
[    0.000000] capabilities 0x1
[    0.000000] model 9000/800/L1000-44
[    0.000000] Total Memory: 3072 MB
[    0.000000] initrd: 7f868000-7ffedc6f
[    0.000000] initrd: reserving 3f868000-3ffedc6f (mem_max c0000000)
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 775680
[    0.000000] Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.29-2-parisc64-smp
[    0.000000] PID hash table entries: 4096 (order: 12, 32768 bytes)
[17179569.184000] Console: colour dummy device 160x64
[17179569.200000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[17179569.240000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[17179569.760000] Memory: 3075708k/3145728k available (3164k kernel code, 69364k reserved, 1459k data, 312k init)
[17179569.772000] virtual kernel memory layout:
[17179569.772000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
[17179569.772000]     memory  : 0x0000000040000000 - 0x0000000100000000   (3072 MB)
[17179569.772000]       .init : 0x000000004068c000 - 0x00000000406da000   ( 312 kB)
[17179569.772000]       .data : 0x00000000404173d0 - 0x0000000040584000   (1459 kB)
[17179569.772000]       .text : 0x0000000040100000 - 0x00000000404173d0   (3164 kB)
[17179569.840000] Calibrating delay loop... 876.54 BogoMIPS (lpj=1753088)
[17179569.936000] Security Framework initialized
[17179569.944000] SELinux:  Disabled at boot.
[17179569.956000] Mount-cache hash table entries: 256
[17179570.060000] Initializing cgroup subsys ns
[17179570.068000] Initializing cgroup subsys cpuacct
[17179570.072000] Initializing cgroup subsys devices
[17179570.076000] Initializing cgroup subsys freezer
[17179570.080000] Initializing cgroup subsys net_cls
[17179570.096000] Brought up 1 CPUs
[17179570.348000] net_namespace: 1880 bytes
[17179570.352000] regulator: core version 0.5
[17179570.480000] NET: Registered protocol family 16
[17179570.492000] EISA bus registered
[17179570.500000] Searching for devices...
[17179571.076000] Found devices:
[17179571.080000] 1. Rhapsody DC- 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5c9, 0x00004 }
[17179571.092000] 2. Rhapsody DC- 440 at 0xfffffffffffa6000 [166] { 0, 0x0, 0x5c9, 0x00004 }
[17179571.100000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x095, 0x00009 }
[17179571.108000] 4. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
[17179571.112000] 5. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
[17179571.188000] 6. Elroy PCI Bridge at 0xfffffffffed32000 [0/1] { 13, 0x0, 0x782, 0x0000a }
[17179571.196000] 7. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
[17179571.204000] 8. Elroy PCI Bridge at 0xfffffffffed36000 [0/3] { 13, 0x0, 0x782, 0x0000a }
[17179571.212000] 9. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
[17179571.220000] 10. Elroy PCI Bridge at 0xfffffffffed3a000 [0/5] {
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
[17179572.312000] powersw: Soft power switch support not available.
[17179572.328000] bio: create slab <bio-0> at 0
[17179572.480000] NET: Registered protocol family 2
[17179572.540000] IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
[17179572.552000] TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
[17179572.624000] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[17179572.748000] TCP: Hash tables configured (established 262144 bind 65536)
[17179572.756000] TCP reno registered
[17179572.768000] NET: Registered protocol family 1
[17179572.880000] checking if image is initramfs... it is
[17179576.376000] Freeing initrd memory: 7703k freed
[17179576.384000] Chassis warnings not supported.
[17179576.392000] Performance monitoring counters enabled for Rhapsody DC- 440
[17179576.404000] audit: initializing netlink socket (disabled)
[17179576.416000] type=2000 audit(1248974998.722:1): initialized
[17179576.428000] VFS: Disk quotas dquot_6.5.2
[17179576.436000] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[17179576.460000] msgmni has been set to 6023
[17179576.468000] alg: No test for stdrng (krng)
[17179576.476000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[17179576.488000] io scheduler noop registered
[17179576.492000] io scheduler anticipatory registered
[17179576.496000] io scheduler deadline registered
[17179576.500000] io scheduler cfq registered (default)
[17179576.604000] PDC Stable Storage facility v0.30
[17179577.424000] STI GSC/PCI core graphics driver Version 0.9a
[17179577.456000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[17179577.464000] serial 0000:00:04.0: enabling device (0146 -> 0147)
[17179577.476000] 0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 70) is a 16550A
[17179577.484000] console handover: boot [ttyB0] -> real [ttyS0]
[17179577.500000] 0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 70) is a 16550A
[17179577.524000] 0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 70) is a 16550A
[17179577.536000] serial 0000:00:05.0: enabling device (0000 -> 0003)
[17179577.548000] serial 0000:00:05.0: enabling SERR and PARITY (0003 -> 0143)
[17179577.564000] 0000:00:05.0: ttyS3 at MMIO 0xfffffffff8005000 (irq = 71) is a 16550A
[17179577.576000] Couldn't register serial port 0000:00:05.0: -28
[17179577.680000] brd: module loaded
[17179577.804000] mice: PS/2 mouse device common for all mice
[17179577.816000] rtc-parisc rtc-parisc: rtc core: registered rtc-parisc as rtc0
[17179577.828000] TCP cubic registered
[17179577.944000] NET: Registered protocol family 17
[17179577.956000] registered taskstats version 1
[17179578.088000] rtc-parisc rtc-parisc: setting system clock to 2009-07-30 17:30:00 UTC (1248975000)
[17179578.100000] Freeing unused kernel memory: <0>------------[ cut here ]------------
[17179578.236000] Badness at /build/buildd/linux-2.6-2.6.29/debian/build/source_hppa_none/kernel/smp.c:329
[17179578.372000] 
[17179578.372000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[17179578.376000] PSW: 00001000000001100000000000001110 Not tainted
[17179578.512000] r00-03  000000000806000e 00000000406829c0 0000000040181194 0000000040590020
[17179578.652000] r04-07  00000000406791c0 000000004065e6a0 0000000000000000 00000000404fdfa0
[17179578.660000] r08-11  000000004065e6a0 0000000000000000 00000000406841c0 0000000000000001
[17179578.668000] r12-15  000000004067a9c0 0000000000000000 00000000406791c0 00000000000000ff
[17179578.676000] r16-19  00000000406809c0 00000000406879c0 00000000ff83a268 000000004[17179579.072000] r20-23  0000000000000000 00000000406da000 fffffffffffffffe 0000000000000001
[17179579.084000] r24-27  0000000000000000 000000004065e6a0 00000000404fdfa0 00000000406791c0
[17179579.092000] r28-31  000000000800000e 00000000ff8404a0 00000000ff840590 0000000000000000
[17179579.100000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[17179579.108000] sr04-07  0000000000000000 0000000000000000 000000000000000
[17179579.640000] 
[17179579.644000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040180e34 0000000040180e38
[17179579.652000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000002fe10040510
[17179579.660000]  CPU:        0   CR30: 00000000ff840000 CR31: ffffffffffffffff
[17179579.668000]  ORIG_R28: 000000000800000e
[17179579.672000]  IAOQ[0]: smp_call_function_many+0x44/0x368
[17179579.920000]  IAOQ[1]: smp_call_function_many+0x48/0x368
[17179579.928000]  RP(r2): smp_call_function+0x3c/0x50
[17179579.932000] Backtrace:
[17179579.932000]  [<0000000040181194>] smp_call_function+0x3c/0x50
[17179579.940000000401a1504>] call_rcu+0x44/0x58
[17179580.344000] 
[17179580.352000] ------------[ cut here ]------------
[17179580.360000] Badness at /build/buildd/linux-2.6-2.6.29/debian/build/source_hppa_none/kernel/smp.c:226
[17179580.368000] 
[17179580.368000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[17179580.376000] PSW: 00001000000001101111111000001110 Tainted: G        W 
[17179580.380000] r00-03  000000ff0806fe0e 000000004067e1c0 0000000040180f1c 0000000000000000
[17179580.388000] r04-07  00000000406791c0 00000000065e6a0 0000000000000000
[17179580.908000] r08-11  000000004065e6a0 0000000000000000 00000000406841c0 0000000000000001
[17179580.920000] r12-15  000000004067a9c0 0000000000000000 00000000406791c0 00000000000000ff
[17179580.928000] r16-19  00000000406809c0 00000000406879c0 00000000ff83a268 0000000000000008
[17179580.936000] r20-23  00000000404fdfa0 0000000000000002 fffffffffffffffe 0000000000000001
[17179580.944000] r24-27  0000000000000000 000000004065e6a0 0000000000000001 0000000041.340000] r28-31  000000000800000e 00000000ff840560 00000000ff840660 0000000000000008
[17179581.476000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[17179581.492000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[17179581.500000] 
[17179581.500000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040180cd0 0000000040180cd4
[17179581.508000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000002fe100405e0
[17179581.512000]  CPU:        0   CR30: 00000000ff840000 CR31: fffffffff81.908000]  ORIG_R28: 0000000000000001
[17179582.036000]  IA
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
Begin: Loading essential drivers ... WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
[17179583.088000] SCSI subsystem initialized
WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
done.
Begin: Running /scripts/init-premount ... [17179583.856000] Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
[17179584.008000] tulip 0000:00:00.0: enabling device (0140 -> 0143)
[17179584.028000] tulip0: no phy info, aborting mtable build
[17179584.140000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
[17179584.164000] eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff8006000, 00:10:83:fe:9c:b0, IRQ 66.
[17179584.428000] tulip 0000:18:00.0: enabling device (0000 -> 0003)
[17179584.436000] tulip 0000:18:00.0: enabling SERR and PARITY (0003 -> 0143)

************* SYSTEM ALERT **************
SYSTEM NAME: scaspdb24
DATE: 07/30/2009 TIME: 17:30:06
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
0x5800087000FF6292 00006D06 1E111E06 - type 11 = Timestamp 07/30/2009 17:30:06
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:a
*****************************************


Leaving Console Mode - you may lose write access.
When Console Mode returns, type ^Ecf to get console write access.

Service Processor login: 
Service Processor password: 




             Hewlett-Packard Guardian Service Processor


             9000/800/L1000-44 System Name: scaspdb24


GSP Host Name:  scaspdb24
GSP> r ser pim

Unknown Command 


GSP Host Name:  scaspdb24
GSP> rs


RS

Execution of this command irrecoverably halts all system processing and
I/O activity and restarts the computer system.

Type Y to confirm your intention to restart the system: (Y/[N]) y
y
   -> SPU hardware was successfully issued a reset.


GSP Host Name:  scaspdb24
GSP> 
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         FLASH     ON         ON
LED State: Unexpected Reboot. Running non-OS code. Non-critical error detected.
Check Chassis and Console Logs for error messages.

platform                  config                     626F
processor                 slave rendezvous           1C17
processor                 test                       1142
processor                 test                       1100
processor                 test                       1100
processor                 test                       1100
processor                 test                       1100
processor                 test                       1100
processor                 test                       1100
processor                 test                       1100
processor                 test                       1100
processor                 test                       1100
PDH                       config                     322F
PDH                       test                       3149
PDH                       test                       3160
platform                  test                       616A
processor                 test                       1146
processor                 INIT                       1701
processor                 INIT                       1701
processor                 test                       1110
processor                 test                       1110
processor                 test                       1110
processor                 INIT                       1701
processor                 test                       1110
processor                 INIT                       1701
processor                 test                       1110
processor                 test                       1110
processor                 slave rendezvous           1C17
processor                 test                       1142
processor                 slave rendezvous           1C10
processor                 test                       1142
PDH                       test                       3158
PDH                       test                       3157
PDH                       test                       316E
PDH                       test                       316E
PDH                       test                       316E
PDH                       test                       316E
PDH                       test                       316E
PDH                       test                       316E
PDH                       test                       316E
memory                    config                     7210
memory                    INIT                       7702
memory                    INIT                       771D
memory                    test                       7150
memory                    config                     7213
memory                    config                     7213
memory                    config                     7214
memory                    config                     7213
memory                    config                     7213
memory                    config                     7214
memory                    config                     7213
memory                    config                     7213
memory                    config                     7214
memory                    config                     7213
memory                    config                     7213
memory                    config                     7214
memory                    config                     7213
memory                    config                     7213
memory                    config                     7214
memory                    config                     7213
memory                    config                     7213
memory                    config                     7214
memory                    config                     7213
memory                    config                     7213
memory                    config                     7214
memory                    config                     7213
memory                    config                     7213
memory                    config                     7214
memory                    config                     7213
memory                    config                     7213
memory                    config                     7215
memory                    config                     7216
memory                    config                     72A0
memory                    test                       71A1
memory                    test                       71A2
memory                    test                       71A4
memory                    test                       71A5
memory                    test                       71A6
memory                    test                       71A3
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A6
memory                    test                       71A6
memory                    config                     7217
memory                    config                     7218
memory                    config                     72A0
memory                    test                       71A1
memory                    test                       71A2
memory                    test                       71A4
memory                    test                       71A5
memory                    test                       71A6
memory                    test                       71A3
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A6
memory                    test                       71A6
memory                    config                     7210
I/O                       INIT                       8701
I/O                       test                       8118
I/O                       test                       8118
I/O                       INIT                       8701
I/O                       INIT                       8701
I/O                       INIT                       8701
I/O                       INIT                       8701
I/O                       INIT                       8701
I/O                       INIT                       8701
I/O                       INIT                       8701
I/O                       INIT                       8701
I/O                       INIT                       8701
memory                    config                     7240
memory                    INIT                       7702
memory                    config                     7241
memory                    config                     7243
memory                    config                     72A0
memory                    test                       71A1
memory                    test                       71A2
memory                    test                       71A4
memory                    test                       71A5
memory                    test                       71A6
memory                    test                       71A3
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A6
memory                    test                       71A6
memory                    test                       71A6
memory                    test                       71A6
memory                    test                       71A6
memory                    test                       71A6
memory                    test                       71A6
memory                    test                       71A6
memory                    test                       71A6
memory                    test                       71A6
memory                    test                       71A6
memory                    test                       71A6
memory                    test                       71A6
memory                    INIT                       7745
memory                    config                     7240
I/O                       config                     8204
I/O                       config                     8204
I/O                       test                       8119
I/O                       test                       8119
I/O                       test                       8119
I/O                       test                       8119
I/O                       test                       8119
I/O                       test                       8119
I/O                       test                       8119
I/O                       test                       8119
I/O                       test                       8119
I/O                       test                       8119
I/O                       config                     8204
processor                 test                       1120
processor                 test                       1120
processor                 INIT                       1701
processor                 test                       1120
processor                 test                       1120
processor                 test                       1120
processor                 INIT                       1701
processor                 test                       1120
processor                 slave rendezvous           1C40
processor                 test                       1142
platform                  test                       612A
I/O                       config                     8238

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************

Firmware Version  44.28

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2002, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      440  MHz   Active                 Functional         512 KB   1 MB
      3      440  MHz   Idle                   Functional         512 KB   1 MB

  Central Bus Speed (in MHz)  :         82  
  Available Memory            :    3145728  KB
  Good Memory Required        :      22096  KB

   Primary boot path:    0/0/1/1.0           
   Alternate boot path:  0/7/0/0.97.20.19.0.0.5     
   Console path:         0/0/4/0.0           
   Keyboard path:        0/0/4/0.0           


---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > ser pim


PROCESSOR PIM INFORMATION

Original Product Number:   A5576A
Current Product Number:    A5576A


-----------------  Processor 0 HPMC Information - PDC Version: 44.28  ------ 

Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)

HPMC Chassis Codes 

       Chassis Code        Extension 
       ------------        --------- 
       0x0000082000ff6242  0x0000000000000000
       0x1800082011006312  0xcb81000000000000
       0x0000087000ff6292  0x000000f0f0000000
       0x6000082070006062  0x0000000000100010
       0x7000082070006082  0x0000000000b92400
       0x7000082379006133  0xc1bff0fffed08040
       0x0000080080006310  0x0000000000000001
       0x000008008000631f  0x0000000000000000
       

General Registers 0 - 31
00-03  0000000000000000  00000000402e7098  000000000c1b5c78  000000007f954680
04-07  000000000c1b1000  000000000c1fc800  000000000c1c79b0  000000007f954000
08-11  000000000c1fc830  0000000000000003  00000000fe87e800  000000000c1fc800
12-15  0000000000000000  00000000fb6a2d5e  00000000fb6a2b5e  0000000000000003
16-19  0000000000026420  0000000000000000  00000000fe87e880  000000007f9555b8
20-23  0000000000000000  000000007f9552c0  ffffffffc0000000  0000000000100000
24-27  0000000000000000  0000000000000000  000000000c1fc830  00000000406791c0
28-31  000000000c1b4010  000000007f858be0  000000007f858c90  000000000c1b3fd0


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  000000000000011c  0000000000000000  00000000000000c0  0000000000000001
12-15  0000000000000000  0000000000000000  0000000000103000  ff80000000000000
16-19  0000003aeb5d81e1  0000000000000000  00000000402e70d0  000000000f40109c
20-23  00000000a627ff41  000000004fdfc830  000000ff0804ff0f  8000000000000000
24-27  0000000000586000  000000003f892000  ffffffffffffffff  0000000040001480
28-31  ffffffffffffffff  ffffffffffffff2f  000000007f858000  ffffffffffffffff

Space Registers 0 - 7
00-03  0004d800          00000000          00000000          00047000
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x00000000402e70d4
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030103b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000ffd053f830
System Requestor Address     = 0xfffffffffffa0000


Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  00000000bf840350  00000000bf840358  0000000000000008
08-11  000000004020b518  00000000ff83a268  0000000000000000  0000000000000002
12-15  00000000ff83fc10  00000000ff8403f0  00000000ff83fc00  00000000406791c0
16-19  0000000000000002  00000000ff83a268  00000000406879c0  00000000406809c0
20-23  00000000000000ff  00000000406791c0  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  fffffffffffff000  00000000fefa6000
28-31  0000000000000000  0000000000000000  ffffffffffffff9c  00000000406791c0


Check Summary                = 0xcb81000000000000
Available Memory             = 0x00000000c0000000
CPU Diagnose Register 2      = 0x0203000100802004
CPU Status Register 0        = 0x2440c24000000000
CPU Status Register 1        = 0x8002000000000000
SADD LOG                     = 0x147ffcffffffffff
Read Short LOG               = 0xc1af00ffd053f830



-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000000000000
CPU State                    = 0x00000000



-----------------  Processor 3 HPMC Information - PDC Version: 44.28  ------ 

Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)

HPMC Chassis Codes 

       Chassis Code        Extension 
       ------------        --------- 
       0x0000082000ff6242  0x0000000000000000
       0x1800082011036322  0xcb81800000000000
       

General Registers 0 - 31
00-03  0000000000000000  000000004067a9c0  000000004011c18c  0000000043541518
04-07  00000000406791c0  00000000fc985000  000000007f93f000  0000000000000000
08-11  00000000fca67918  000000007f8d9cc0  00000000404eb740  0000000040000000
12-15  0000000000000000  0000000000000200  0000000040311427  0000000000000000
16-19  00000000419e85c8  000000007f93f888  0000000000000000  0000000000000000
20-23  000000000003f93f  00000000fffffffa  0000000000000000  0000000000000040
24-27  0000000000000010  00000000fc985fc0  000000004050a000  00000000406791c0
28-31  0000000000000001  000000007f94c800  000000007f94c830  00000000005282a3


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000146  0000000000000000  00000000000000c0  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000103000  ff80000000000000
16-19  0000003aeb5d7f36  0000000000000000  000000004011c190  0000000004a01200
20-23  0000000000000000  00000000fc985000  000000ff0804f90f  8000000000000000
24-27  0000000000586000  000000003f952000  fffffffff37f7f00  0000000040001b60
28-31  fffffffff37f7f00  fffffffff37f7f00  000000007f94c000  fffffffff37f7f00

Space Registers 0 - 7
00-03  00051800          00000000          00000000          00051800
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x000000004011c194
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030000d
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffffa6000
System Requestor Address     = 0xfffffffffffa0000


Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  00000000bf840350  00000000bf840358  0000000000000008
08-11  000000004020b518  00000000ff83a268  0000000000000000  0000000000000002
12-15  00000000ff83fc10  00000000ff8403f0  00000000ff83fc00  00000000406791c0
16-19  0000000000000002  00000000ff83a268  00000000406879c0  00000000406809c0
20-23  00000000000000ff  00000000406791c0  0000000000000000  0000000a4067a9c0
24-27  0000000000000000  00000000406841c0  fffffffffffff000  00000000fefa6000
28-31  0000000000000000  0000000000000000  ffffffffffffff9c  00000000406791c0


Check Summary                = 0xcb81800000000000
Available Memory             = 0x00000000c0000000
CPU Diagnose Register 2      = 0x0203030100802004
CPU Status Register 0        = 0x3440c24000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x4800000000000000
Read Short LOG               = 0xc13ff0f0f0047218



-----------------  Processor 3 LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



-----------------  Processor 3 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000000000000
CPU State                    = 0x00000000


--------------  Memory Error Log Information  --------------

Bus 0 Log Information

Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X       X     ERR_ERROR       X            X           

Bus Requestor Address      = 0xfffffffffffa0000
Bus Target Address         = 0x0000000000000000
Bus Responder Address      = 0xfffffffffed00000

Error Status Reg           = 0x0000000000100010
Runway Control Reg         = 0x0000021c00001418
Runway Address Reg         = 0xc1bff0fffed08040
Runway Data High Reg       = 0xe840c000083c025c
Runway Data Low Reg        = 0xe840c000083c025c
Memory Address Reg         = 0x000001ff3fffffff
Memory Address Corr Reg    = 0x000001ff3fffffff
Memory Syndrome Reg        = 0x0000000000000000
Memory Syndrome Corr Reg   = 0x0000000000000000



 Address/Control Parity Error Registers  

   Address/Control Parity Error Bit (mem_addr_par_stat) Not Set 



------------  I/O Module Error Log Information  ------------


   No I/O module errors logged


Main Menu: Enter command or menu > 

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:04:38 2018
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Path: news.gmane.org!not-for-mail
From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPPA hang with PCI SERR or PARITY enabling
Date: Fri, 31 Jul 2009 09:25:44 +0800
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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To: Meelis Roos <mroos@linux.ee>
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Please see http://www.parisc-linux.org/faq/kernelbug-howto.html

(Thought I just noticed some bits of it are no longer true, such as the 
address ranges)

Anyway, from the output below, I suspect maybe we have some kernel 
functions that are not in the right section, since the error happens 
right after  "Freeing unused kernel memory"?

But this is just a guess.

randolph

Meelis Roos wrote:
>>> 0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
>>> 0x5800087000FF6292 00006D05 0F092C37 - type 11 = Timestamp 06/15/2009 09:44:55
>> I believe FF6292 is a HPMC.  Please collect and post the "ser pim" output
>> for the above.  It would also help if the location of the HPMC can be related
>> to your compiled kernel using objdump.
> 
> Well, it took some time, but I'm back to it. I rebooted a 
> Debian-packaged kernel and got SER PIM output as well for the same boot. 
> I also checked that there's nothing more in GSP console log.
> 
> As I can't boot it up with any kernel currently, I could not objdump the 
> specific image, but I know it's 2.6.29-5 version of Debian 
> 2.6.29-2-parisc64-smp kernel. Will investigate if I get a match - what 
> address should I be decoding?
> 
> Main Menu: Enter command or menu > bo
> NOTICE: System integrity at risk when selftest(s) are disabled.
>         Enabling selftests with "ser sel on" will prevent this note.
>         Do you wish to continue the boot?  [Y] or N: y
> Interact with IPL (Y, N, or Cancel)?> y
> 
> Booting... 
> Boot IO Dependent Code (IODC) revision 1
> 
> 
> HARD Booted.
> palo ipl 1.14 root@penalosa Wed Oct  8 15:04:37 UTC 2008
> Skipping extended partition 6 - beyond reach of IPL
> 
> Partition Start(MB) End(MB) Id Type
> 1               1      31   f0 Palo
> 2              32     156   83 ext2
> 5             157   33408   83 ext2
> 
> PALO(F0) partition contains:
>     0/vmlinux64 6240197 bytes @ 0x48000
> 
> Information: No console specified on kernel command line. This is normal.
> PALO will choose the console currently used by firmware (serial).Current command line:
> 2/vmlinux root=/dev/sda5 initrd=2/initrd.img HOME=/ console=ttyS0 TERM=vt102
>  0: 2/vmlinux
>  1: root=/dev/sda5
>  2: initrd=2/initrd.img
>  3: HOME=/
>  4: console=ttyS0
>  5: TERM=vt102
> 
> <#>    edit the numbered field
> 'b'    boot with this command line
> 'r'    restore command line
> 'l'    list dir
> ? 0 l
> Directory listing of /.
> 
>   lost+found
>   vmlinux
>   initrd.img-2.6.29-rc1.bak
>   initrd.img
>   vmlinux.old
>   System.map-2.6.29-rc1
>   vmlinux-2.6.29-rc1
>   config-2.6.29-rc8
>   System.map-2.6.29-rc8
>   vmlinux-2.6.29-rc8
>   initrd.img-2.6.29-rc8
>   config-2.6.29-rc1
>   initrd.img-2.6.29-rc1
>   System.map-2.6.26-1-parisc64-smp
>   System.map-2.6.26-1-parisc64
>   config-2.6.26-1-parisc64
>   vmlinux-2.6.26-1-parisc64
>   vmlinux-2.6.26-1-parisc64-smp
>   config-2.6.26-1-parisc64-smp
>   initrd.img-2.6.26-1-parisc64-smp
>   initrd.img-2.6.26-1-parisc64
>   initrd.img.old
>   initrd.img-2.6.26-1-parisc64-smp.bak
>   System.map-2.6.29-2-parisc64-smp
>   vmlinux-2.6.29-2-parisc64-smp
>   config-2.6.29-2-parisc64-smp
>   initrd.img-2.6.29-2-parisc64-smp
> 
> Current command line:
> 2/vmlinux root=/dev/sda5 initrd=2/initrd.img HOME=/ console=ttyS0 TERM=vt102
>  0: 2/vmlinux
>  1: root=/dev/sda5
>  2: initrd=2/initrd.img
>  3: HOME=/
>  4: console=ttyS0
>  5: TERM=vt102
> 
> <#>    edit the numbered field
> 'b'    boot with this command line
> 'r'    restore command line
> 'l'    list dir
> ? 0
> 2/vmlinux-2.6.29-2-parisc64-smp
> Current command line:
> 2/vmlinux-2.6.29-2-parisc64-smp root=/dev/sda5 initrd=2/initrd.img HOME=/ console=ttyS0 TERM=vt102
>  0: 2/vmlinux-2.6.29-2-parisc64-smp
>  1: root=/dev/sda5
>  2: initrd=2/initrd.img
>  3: HOME=/
>  4: console=ttyS0
>  5: TERM=vt102
> 
> <#>    edit the numbered field
> 'b'    boot with this command line
> 'r'    restore command line
> 'l'    list dir
> ? 0 2
> initrd=2/initrd.img-2.6.29-2-parisc64-smp
> Current command line:
> 2/vmlinux-2.6.29-2-parisc64-smp root=/dev/sda5 initrd=2/initrd.img-2.6.29-2-parisc64-smp HOME=/ console=ttyS0 TERM=vt102
>  0: 2/vmlinux-2.6.29-2-parisc64-smp
>  1: root=/dev/sda5
>  2: initrd=2/initrd.img-2.6.29-2-parisc64-smp
>  3: HOME=/
>  4: console=ttyS0
>  5: TERM=vt102
> 
> <#>    edit the numbered field
> 'b'    boot with this command line
> 'r'    restore command line
> 'l'    list dir
> ? 0 b
> 
> Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.29-2-parisc64-smp'
> Selected kernel: /vmlinux-2.6.29-2-parisc64-smp from partition 2
> Selected ramdisk: /initrd.img-2.6.29-2-parisc64-smp from partition 2
> ELF64 executable
> Entry 00100000 first 00100000 n 3
> Segment 0 load 00100000 size 4784128 mediaptr 0x1000
> Segment 1 load 00628000 size 403984 mediaptr 0x491000
> Segment 2 load 0068c000 size 317824 mediaptr 0x4f4000
> Loading ramdisk 7887983 bytes @ 3f868000...
> Branching to kernel entry point 0x00100000.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org
> 
> [    0.000000] Initializing cgroup subsys cpuset
> [    0.000000] Initializing cgroup subsys cpu
> [    0.000000] Linux version 2.6.29-2-parisc64-smp (Debian 2.6.29-5) (waldi@debian.org) (gcc version 4.3.3 (GCC) ) #1 SMP Mon May 18 14:55:30 UTC 2009
> [    0.000000] unwind_init: start = 0x404bf0a4, end = 0x404eb424, entries = 11320
> [    0.000000] WARNING: Out of order unwind entry! 00000000404c0fb4 and 00000000404c0fc4
> [    0.000000] WARNING: Out of order unwind entry! 00000000404c0fc4 and 00000000404c0fd4
> [    0.000000] FP[0] enabled: Rev 1 Model 16
> [    0.000000] The 64-bit Kernel has started...
> [    0.000000] console [ttyB0] enabled
> [    0.000000] Initialized PDC Console for debugging.
> [    0.000000] Determining PDC firmware type: 64 bit PAT.
> [    0.000000] model 00005c90 00000491 00000000 00000002 2353fbcb 100000f0 00000008 000000b2 000000b2
> [    0.000000] vers  00000203
> [    0.000000] CPUID vers 17 rev 8 (0x00000228)
> [    0.000000] capabilities 0x1
> [    0.000000] model 9000/800/L1000-44
> [    0.000000] Total Memory: 3072 MB
> [    0.000000] initrd: 7f868000-7ffedc6f
> [    0.000000] initrd: reserving 3f868000-3ffedc6f (mem_max c0000000)
> [    0.000000] SMP: bootstrap CPU ID is 0
> [    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 775680
> [    0.000000] Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.29-2-parisc64-smp
> [    0.000000] PID hash table entries: 4096 (order: 12, 32768 bytes)
> [17179569.184000] Console: colour dummy device 160x64
> [17179569.200000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
> [17179569.240000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
> [17179569.760000] Memory: 3075708k/3145728k available (3164k kernel code, 69364k reserved, 1459k data, 312k init)
> [17179569.772000] virtual kernel memory layout:
> [17179569.772000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
> [17179569.772000]     memory  : 0x0000000040000000 - 0x0000000100000000   (3072 MB)
> [17179569.772000]       .init : 0x000000004068c000 - 0x00000000406da000   ( 312 kB)
> [17179569.772000]       .data : 0x00000000404173d0 - 0x0000000040584000   (1459 kB)
> [17179569.772000]       .text : 0x0000000040100000 - 0x00000000404173d0   (3164 kB)
> [17179569.840000] Calibrating delay loop... 876.54 BogoMIPS (lpj=1753088)
> [17179569.936000] Security Framework initialized
> [17179569.944000] SELinux:  Disabled at boot.
> [17179569.956000] Mount-cache hash table entries: 256
> [17179570.060000] Initializing cgroup subsys ns
> [17179570.068000] Initializing cgroup subsys cpuacct
> [17179570.072000] Initializing cgroup subsys devices
> [17179570.076000] Initializing cgroup subsys freezer
> [17179570.080000] Initializing cgroup subsys net_cls
> [17179570.096000] Brought up 1 CPUs
> [17179570.348000] net_namespace: 1880 bytes
> [17179570.352000] regulator: core version 0.5
> [17179570.480000] NET: Registered protocol family 16
> [17179570.492000] EISA bus registered
> [17179570.500000] Searching for devices...
> [17179571.076000] Found devices:
> [17179571.080000] 1. Rhapsody DC- 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5c9, 0x00004 }
> [17179571.092000] 2. Rhapsody DC- 440 at 0xfffffffffffa6000 [166] { 0, 0x0, 0x5c9, 0x00004 }
> [17179571.100000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x095, 0x00009 }
> [17179571.108000] 4. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
> [17179571.112000] 5. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
> [17179571.188000] 6. Elroy PCI Bridge at 0xfffffffffed32000 [0/1] { 13, 0x0, 0x782, 0x0000a }
> [17179571.196000] 7. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
> [17179571.204000] 8. Elroy PCI Bridge at 0xfffffffffed36000 [0/3] { 13, 0x0, 0x782, 0x0000a }
> [17179571.212000] 9. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
> [17179571.220000] 10. Elroy PCI Bridge at 0xfffffffffed3a000 [0/5] {
> ********** VIRTUAL FRONT PANEL **********
> System Boot detected
> *****************************************
> LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
>        ON       FLASH         OFF       ON         ON
> LED State: There was a system interruption that did not take the system down.
> Check Chassis and Console Logs for error messages.
> 
> processor                 system initialization      1C00
> 
> *****************************************
> 
> ************ EARLY BOOT VFP *************
> End of early boot detected
> *****************************************
> [17179572.312000] powersw: Soft power switch support not available.
> [17179572.328000] bio: create slab <bio-0> at 0
> [17179572.480000] NET: Registered protocol family 2
> [17179572.540000] IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
> [17179572.552000] TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
> [17179572.624000] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
> [17179572.748000] TCP: Hash tables configured (established 262144 bind 65536)
> [17179572.756000] TCP reno registered
> [17179572.768000] NET: Registered protocol family 1
> [17179572.880000] checking if image is initramfs... it is
> [17179576.376000] Freeing initrd memory: 7703k freed
> [17179576.384000] Chassis warnings not supported.
> [17179576.392000] Performance monitoring counters enabled for Rhapsody DC- 440
> [17179576.404000] audit: initializing netlink socket (disabled)
> [17179576.416000] type=2000 audit(1248974998.722:1): initialized
> [17179576.428000] VFS: Disk quotas dquot_6.5.2
> [17179576.436000] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
> [17179576.460000] msgmni has been set to 6023
> [17179576.468000] alg: No test for stdrng (krng)
> [17179576.476000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
> [17179576.488000] io scheduler noop registered
> [17179576.492000] io scheduler anticipatory registered
> [17179576.496000] io scheduler deadline registered
> [17179576.500000] io scheduler cfq registered (default)
> [17179576.604000] PDC Stable Storage facility v0.30
> [17179577.424000] STI GSC/PCI core graphics driver Version 0.9a
> [17179577.456000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> [17179577.464000] serial 0000:00:04.0: enabling device (0146 -> 0147)
> [17179577.476000] 0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 70) is a 16550A
> [17179577.484000] console handover: boot [ttyB0] -> real [ttyS0]
> [17179577.500000] 0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 70) is a 16550A
> [17179577.524000] 0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 70) is a 16550A
> [17179577.536000] serial 0000:00:05.0: enabling device (0000 -> 0003)
> [17179577.548000] serial 0000:00:05.0: enabling SERR and PARITY (0003 -> 0143)
> [17179577.564000] 0000:00:05.0: ttyS3 at MMIO 0xfffffffff8005000 (irq = 71) is a 16550A
> [17179577.576000] Couldn't register serial port 0000:00:05.0: -28
> [17179577.680000] brd: module loaded
> [17179577.804000] mice: PS/2 mouse device common for all mice
> [17179577.816000] rtc-parisc rtc-parisc: rtc core: registered rtc-parisc as rtc0
> [17179577.828000] TCP cubic registered
> [17179577.944000] NET: Registered protocol family 17
> [17179577.956000] registered taskstats version 1
> [17179578.088000] rtc-parisc rtc-parisc: setting system clock to 2009-07-30 17:30:00 UTC (1248975000)
> [17179578.100000] Freeing unused kernel memory: <0>------------[ cut here ]------------
> [17179578.236000] Badness at /build/buildd/linux-2.6-2.6.29/debian/build/source_hppa_none/kernel/smp.c:329
> [17179578.372000] 
> [17179578.372000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [17179578.376000] PSW: 00001000000001100000000000001110 Not tainted
> [17179578.512000] r00-03  000000000806000e 00000000406829c0 0000000040181194 0000000040590020
> [17179578.652000] r04-07  00000000406791c0 000000004065e6a0 0000000000000000 00000000404fdfa0
> [17179578.660000] r08-11  000000004065e6a0 0000000000000000 00000000406841c0 0000000000000001
> [17179578.668000] r12-15  000000004067a9c0 0000000000000000 00000000406791c0 00000000000000ff
> [17179578.676000] r16-19  00000000406809c0 00000000406879c0 00000000ff83a268 000000004[17179579.072000] r20-23  0000000000000000 00000000406da000 fffffffffffffffe 0000000000000001
> [17179579.084000] r24-27  0000000000000000 000000004065e6a0 00000000404fdfa0 00000000406791c0
> [17179579.092000] r28-31  000000000800000e 00000000ff8404a0 00000000ff840590 0000000000000000
> [17179579.100000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> [17179579.108000] sr04-07  0000000000000000 0000000000000000 000000000000000
> [17179579.640000] 
> [17179579.644000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040180e34 0000000040180e38
> [17179579.652000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000002fe10040510
> [17179579.660000]  CPU:        0   CR30: 00000000ff840000 CR31: ffffffffffffffff
> [17179579.668000]  ORIG_R28: 000000000800000e
> [17179579.672000]  IAOQ[0]: smp_call_function_many+0x44/0x368
> [17179579.920000]  IAOQ[1]: smp_call_function_many+0x48/0x368
> [17179579.928000]  RP(r2): smp_call_function+0x3c/0x50
> [17179579.932000] Backtrace:
> [17179579.932000]  [<0000000040181194>] smp_call_function+0x3c/0x50
> [17179579.940000000401a1504>] call_rcu+0x44/0x58
> [17179580.344000] 
> [17179580.352000] ------------[ cut here ]------------
> [17179580.360000] Badness at /build/buildd/linux-2.6-2.6.29/debian/build/source_hppa_none/kernel/smp.c:226
> [17179580.368000] 
> [17179580.368000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [17179580.376000] PSW: 00001000000001101111111000001110 Tainted: G        W 
> [17179580.380000] r00-03  000000ff0806fe0e 000000004067e1c0 0000000040180f1c 0000000000000000
> [17179580.388000] r04-07  00000000406791c0 00000000065e6a0 0000000000000000
> [17179580.908000] r08-11  000000004065e6a0 0000000000000000 00000000406841c0 0000000000000001
> [17179580.920000] r12-15  000000004067a9c0 0000000000000000 00000000406791c0 00000000000000ff
> [17179580.928000] r16-19  00000000406809c0 00000000406879c0 00000000ff83a268 0000000000000008
> [17179580.936000] r20-23  00000000404fdfa0 0000000000000002 fffffffffffffffe 0000000000000001
> [17179580.944000] r24-27  0000000000000000 000000004065e6a0 0000000000000001 0000000041.340000] r28-31  000000000800000e 00000000ff840560 00000000ff840660 0000000000000008
> [17179581.476000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> [17179581.492000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> [17179581.500000] 
> [17179581.500000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040180cd0 0000000040180cd4
> [17179581.508000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000002fe100405e0
> [17179581.512000]  CPU:        0   CR30: 00000000ff840000 CR31: fffffffff81.908000]  ORIG_R28: 0000000000000001
> [17179582.036000]  IA
> ********** VIRTUAL FRONT PANEL **********
> System Boot detected
> *****************************************
> LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
>        ON       FLASH         OFF       ON         ON
> LED State: There was a system interruption that did not take the system down.
> Check Chassis and Console Logs for error messages.
> 
> processor                 system initialization      1C00
> 
> *****************************************
> 
> ************ EARLY BOOT VFP *************
> End of early boot detected
> *****************************************
> Begin: Loading essential drivers ... WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.
> WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.
> WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
> [17179583.088000] SCSI subsystem initialized
> WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.
> WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.
> WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
> WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.
> WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.
> WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
> done.
> Begin: Running /scripts/init-premount ... [17179583.856000] Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
> [17179584.008000] tulip 0000:00:00.0: enabling device (0140 -> 0143)
> [17179584.028000] tulip0: no phy info, aborting mtable build
> [17179584.140000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
> [17179584.164000] eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff8006000, 00:10:83:fe:9c:b0, IRQ 66.
> [17179584.428000] tulip 0000:18:00.0: enabling device (0000 -> 0003)
> [17179584.436000] tulip 0000:18:00.0: enabling SERR and PARITY (0003 -> 0143)
> 
> ************* SYSTEM ALERT **************
> SYSTEM NAME: scaspdb24
> DATE: 07/30/2009 TIME: 17:30:06
> ALERT LEVEL: 7 = reserved
> 
> REASON FOR ALERT
> SOURCE: 0 = unknown, no source stated
> SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
> PROBLEM DETAIL: 0 = no problem detail
> 
> LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
>        ON       FLASH         OFF       ON         ON
> LED State: There was a system interruption that did not take the system down.
> Check Chassis and Console Logs for error messages.
> 
> 0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
> 0x5800087000FF6292 00006D06 1E111E06 - type 11 = Timestamp 07/30/2009 17:30:06
> A: ack read of this entry - X: Disable all future alert messages
> Anything else skip redisplay the log entry
> ->Choice:a
> *****************************************
> 
> 
> Leaving Console Mode - you may lose write access.
> When Console Mode returns, type ^Ecf to get console write access.
> 
> Service Processor login: 
> Service Processor password: 
> 
> 
> 
> 
>              Hewlett-Packard Guardian Service Processor
> 
> 
>              9000/800/L1000-44 System Name: scaspdb24
> 
> 
> GSP Host Name:  scaspdb24
> GSP> r ser pim
> 
> Unknown Command 
> 
> 
> GSP Host Name:  scaspdb24
> GSP> rs
> 
> 
> RS
> 
> Execution of this command irrecoverably halts all system processing and
> I/O activity and restarts the computer system.
> 
> Type Y to confirm your intention to restart the system: (Y/[N]) y
> y
>    -> SPU hardware was successfully issued a reset.
> 
> 
> GSP Host Name:  scaspdb24
> GSP> 
> ********** VIRTUAL FRONT PANEL **********
> System Boot detected
> *****************************************
> LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
>        FLASH    FLASH         FLASH     ON         ON
> LED State: Unexpected Reboot. Running non-OS code. Non-critical error detected.
> Check Chassis and Console Logs for error messages.
> 
> platform                  config                     626F
> processor                 slave rendezvous           1C17
> processor                 test                       1142
> processor                 test                       1100
> processor                 test                       1100
> processor                 test                       1100
> processor                 test                       1100
> processor                 test                       1100
> processor                 test                       1100
> processor                 test                       1100
> processor                 test                       1100
> processor                 test                       1100
> PDH                       config                     322F
> PDH                       test                       3149
> PDH                       test                       3160
> platform                  test                       616A
> processor                 test                       1146
> processor                 INIT                       1701
> processor                 INIT                       1701
> processor                 test                       1110
> processor                 test                       1110
> processor                 test                       1110
> processor                 INIT                       1701
> processor                 test                       1110
> processor                 INIT                       1701
> processor                 test                       1110
> processor                 test                       1110
> processor                 slave rendezvous           1C17
> processor                 test                       1142
> processor                 slave rendezvous           1C10
> processor                 test                       1142
> PDH                       test                       3158
> PDH                       test                       3157
> PDH                       test                       316E
> PDH                       test                       316E
> PDH                       test                       316E
> PDH                       test                       316E
> PDH                       test                       316E
> PDH                       test                       316E
> PDH                       test                       316E
> memory                    config                     7210
> memory                    INIT                       7702
> memory                    INIT                       771D
> memory                    test                       7150
> memory                    config                     7213
> memory                    config                     7213
> memory                    config                     7214
> memory                    config                     7213
> memory                    config                     7213
> memory                    config                     7214
> memory                    config                     7213
> memory                    config                     7213
> memory                    config                     7214
> memory                    config                     7213
> memory                    config                     7213
> memory                    config                     7214
> memory                    config                     7213
> memory                    config                     7213
> memory                    config                     7214
> memory                    config                     7213
> memory                    config                     7213
> memory                    config                     7214
> memory                    config                     7213
> memory                    config                     7213
> memory                    config                     7214
> memory                    config                     7213
> memory                    config                     7213
> memory                    config                     7214
> memory                    config                     7213
> memory                    config                     7213
> memory                    config                     7215
> memory                    config                     7216
> memory                    config                     72A0
> memory                    test                       71A1
> memory                    test                       71A2
> memory                    test                       71A4
> memory                    test                       71A5
> memory                    test                       71A6
> memory                    test                       71A3
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    config                     7217
> memory                    config                     7218
> memory                    config                     72A0
> memory                    test                       71A1
> memory                    test                       71A2
> memory                    test                       71A4
> memory                    test                       71A5
> memory                    test                       71A6
> memory                    test                       71A3
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    config                     7210
> I/O                       INIT                       8701
> I/O                       test                       8118
> I/O                       test                       8118
> I/O                       INIT                       8701
> I/O                       INIT                       8701
> I/O                       INIT                       8701
> I/O                       INIT                       8701
> I/O                       INIT                       8701
> I/O                       INIT                       8701
> I/O                       INIT                       8701
> I/O                       INIT                       8701
> I/O                       INIT                       8701
> memory                    config                     7240
> memory                    INIT                       7702
> memory                    config                     7241
> memory                    config                     7243
> memory                    config                     72A0
> memory                    test                       71A1
> memory                    test                       71A2
> memory                    test                       71A4
> memory                    test                       71A5
> memory                    test                       71A6
> memory                    test                       71A3
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A4
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A5
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    test                       71A6
> memory                    INIT                       7745
> memory                    config                     7240
> I/O                       config                     8204
> I/O                       config                     8204
> I/O                       test                       8119
> I/O                       test                       8119
> I/O                       test                       8119
> I/O                       test                       8119
> I/O                       test                       8119
> I/O                       test                       8119
> I/O                       test                       8119
> I/O                       test                       8119
> I/O                       test                       8119
> I/O                       test                       8119
> I/O                       config                     8204
> processor                 test                       1120
> processor                 test                       1120
> processor                 INIT                       1701
> processor                 test                       1120
> processor                 test                       1120
> processor                 test                       1120
> processor                 INIT                       1701
> processor                 test                       1120
> processor                 slave rendezvous           1C40
> processor                 test                       1142
> platform                  test                       612A
> I/O                       config                     8238
> 
> *****************************************
> 
> ************ EARLY BOOT VFP *************
> End of early boot detected
> *****************************************
> 
> Firmware Version  44.28
> 
> Duplex Console IO Dependent Code (IODC) revision 1
> 
> ------------------------------------------------------------------------------
>    (c) Copyright 1995-2002, Hewlett-Packard Company, All rights reserved
> ------------------------------------------------------------------------------
> 
>   Processor   Speed            State           CoProcessor State  Cache Size
>   Number                                       State              Inst    Data
>   ---------  --------   ---------------------  -----------------  ------------
>       0      440  MHz   Active                 Functional         512 KB   1 MB
>       3      440  MHz   Idle                   Functional         512 KB   1 MB
> 
>   Central Bus Speed (in MHz)  :         82  
>   Available Memory            :    3145728  KB
>   Good Memory Required        :      22096  KB
> 
>    Primary boot path:    0/0/1/1.0           
>    Alternate boot path:  0/7/0/0.97.20.19.0.0.5     
>    Console path:         0/0/4/0.0           
>    Keyboard path:        0/0/4/0.0           
> 
> 
> ---- Main Menu ---------------------------------------------------------------
> 
>      Command                           Description
>      -------                           -----------
>      BOot [PRI|ALT|<path>]             Boot from specified path
>      PAth [PRI|ALT] [<path>]           Display or modify a path
>      SEArch [DIsplay|IPL] [<path>]     Search for boot devices
> 
>      COnfiguration menu                Displays or sets boot values
>      INformation menu                  Displays hardware information
>      SERvice menu                      Displays service commands
> 
>      DIsplay                           Redisplay the current menu
>      HElp [<menu>|<command>]           Display help for menu or command
>      RESET                             Restart the system
> ----
> Main Menu: Enter command or menu > ser pim
> 
> 
> PROCESSOR PIM INFORMATION
> 
> Original Product Number:   A5576A
> Current Product Number:    A5576A
> 
> 
> -----------------  Processor 0 HPMC Information - PDC Version: 44.28  ------ 
> 
> Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)
> 
> HPMC Chassis Codes 
> 
>        Chassis Code        Extension 
>        ------------        --------- 
>        0x0000082000ff6242  0x0000000000000000
>        0x1800082011006312  0xcb81000000000000
>        0x0000087000ff6292  0x000000f0f0000000
>        0x6000082070006062  0x0000000000100010
>        0x7000082070006082  0x0000000000b92400
>        0x7000082379006133  0xc1bff0fffed08040
>        0x0000080080006310  0x0000000000000001
>        0x000008008000631f  0x0000000000000000
>        
> 
> General Registers 0 - 31
> 00-03  0000000000000000  00000000402e7098  000000000c1b5c78  000000007f954680
> 04-07  000000000c1b1000  000000000c1fc800  000000000c1c79b0  000000007f954000
> 08-11  000000000c1fc830  0000000000000003  00000000fe87e800  000000000c1fc800
> 12-15  0000000000000000  00000000fb6a2d5e  00000000fb6a2b5e  0000000000000003
> 16-19  0000000000026420  0000000000000000  00000000fe87e880  000000007f9555b8
> 20-23  0000000000000000  000000007f9552c0  ffffffffc0000000  0000000000100000
> 24-27  0000000000000000  0000000000000000  000000000c1fc830  00000000406791c0
> 28-31  000000000c1b4010  000000007f858be0  000000007f858c90  000000000c1b3fd0
> 
> 
> Control Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11  000000000000011c  0000000000000000  00000000000000c0  0000000000000001
> 12-15  0000000000000000  0000000000000000  0000000000103000  ff80000000000000
> 16-19  0000003aeb5d81e1  0000000000000000  00000000402e70d0  000000000f40109c
> 20-23  00000000a627ff41  000000004fdfc830  000000ff0804ff0f  8000000000000000
> 24-27  0000000000586000  000000003f892000  ffffffffffffffff  0000000040001480
> 28-31  ffffffffffffffff  ffffffffffffff2f  000000007f858000  ffffffffffffffff
> 
> Space Registers 0 - 7
> 00-03  0004d800          00000000          00000000          00047000
> 04-07  00000000          00000000          00000000          00000000
> 
> 
> IIA Space (back entry)       = 0x0000000000000000
> IIA Offset (back entry)      = 0x00000000402e70d4
> Check Type                   = 0x20000000
> CPU State                    = 0x9e000004
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x0030103b
> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0x000000ffd053f830
> System Requestor Address     = 0xfffffffffffa0000
> 
> 
> Floating Point Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  00000000bf840350  00000000bf840358  0000000000000008
> 08-11  000000004020b518  00000000ff83a268  0000000000000000  0000000000000002
> 12-15  00000000ff83fc10  00000000ff8403f0  00000000ff83fc00  00000000406791c0
> 16-19  0000000000000002  00000000ff83a268  00000000406879c0  00000000406809c0
> 20-23  00000000000000ff  00000000406791c0  0000000000000000  0000000000000000
> 24-27  0000000000000000  0000000000000000  fffffffffffff000  00000000fefa6000
> 28-31  0000000000000000  0000000000000000  ffffffffffffff9c  00000000406791c0
> 
> 
> Check Summary                = 0xcb81000000000000
> Available Memory             = 0x00000000c0000000
> CPU Diagnose Register 2      = 0x0203000100802004
> CPU Status Register 0        = 0x2440c24000000000
> CPU Status Register 1        = 0x8002000000000000
> SADD LOG                     = 0x147ffcffffffffff
> Read Short LOG               = 0xc1af00ffd053f830
> 
> 
> 
> -----------------  Processor 0 LPMC Information ------------------
> 
> Check Type                   = 0x00000000
> IC Parity Info               = 0x00000000
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x00000000
> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0x0000000000000000
> System Requestor Address     = 0x0000000000000000
> 
> 
> 
> -----------------  Processor 0 TOC Information -------------------
> 
> General Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 
> 
> Control Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 
> Space Registers 0 - 7
> 00-03  00000000          00000000          00000000          00000000
> 04-07  00000000          00000000          00000000          00000000
> 
> IIA Space (back entry)       = 0x0000000000000000
> IIA Offset (back entry)      = 0x0000000000000000
> CPU State                    = 0x00000000
> 
> 
> 
> -----------------  Processor 3 HPMC Information - PDC Version: 44.28  ------ 
> 
> Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)
> 
> HPMC Chassis Codes 
> 
>        Chassis Code        Extension 
>        ------------        --------- 
>        0x0000082000ff6242  0x0000000000000000
>        0x1800082011036322  0xcb81800000000000
>        
> 
> General Registers 0 - 31
> 00-03  0000000000000000  000000004067a9c0  000000004011c18c  0000000043541518
> 04-07  00000000406791c0  00000000fc985000  000000007f93f000  0000000000000000
> 08-11  00000000fca67918  000000007f8d9cc0  00000000404eb740  0000000040000000
> 12-15  0000000000000000  0000000000000200  0000000040311427  0000000000000000
> 16-19  00000000419e85c8  000000007f93f888  0000000000000000  0000000000000000
> 20-23  000000000003f93f  00000000fffffffa  0000000000000000  0000000000000040
> 24-27  0000000000000010  00000000fc985fc0  000000004050a000  00000000406791c0
> 28-31  0000000000000001  000000007f94c800  000000007f94c830  00000000005282a3
> 
> 
> Control Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11  0000000000000146  0000000000000000  00000000000000c0  0000000000000000
> 12-15  0000000000000000  0000000000000000  0000000000103000  ff80000000000000
> 16-19  0000003aeb5d7f36  0000000000000000  000000004011c190  0000000004a01200
> 20-23  0000000000000000  00000000fc985000  000000ff0804f90f  8000000000000000
> 24-27  0000000000586000  000000003f952000  fffffffff37f7f00  0000000040001b60
> 28-31  fffffffff37f7f00  fffffffff37f7f00  000000007f94c000  fffffffff37f7f00
> 
> Space Registers 0 - 7
> 00-03  00051800          00000000          00000000          00051800
> 04-07  00000000          00000000          00000000          00000000
> 
> 
> IIA Space (back entry)       = 0x0000000000000000
> IIA Offset (back entry)      = 0x000000004011c194
> Check Type                   = 0x20000000
> CPU State                    = 0x9e000004
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x0030000d
> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0xfffffffffffa6000
> System Requestor Address     = 0xfffffffffffa0000
> 
> 
> Floating Point Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  00000000bf840350  00000000bf840358  0000000000000008
> 08-11  000000004020b518  00000000ff83a268  0000000000000000  0000000000000002
> 12-15  00000000ff83fc10  00000000ff8403f0  00000000ff83fc00  00000000406791c0
> 16-19  0000000000000002  00000000ff83a268  00000000406879c0  00000000406809c0
> 20-23  00000000000000ff  00000000406791c0  0000000000000000  0000000a4067a9c0
> 24-27  0000000000000000  00000000406841c0  fffffffffffff000  00000000fefa6000
> 28-31  0000000000000000  0000000000000000  ffffffffffffff9c  00000000406791c0
> 
> 
> Check Summary                = 0xcb81800000000000
> Available Memory             = 0x00000000c0000000
> CPU Diagnose Register 2      = 0x0203030100802004
> CPU Status Register 0        = 0x3440c24000000000
> CPU Status Register 1        = 0x8000000000000000
> SADD LOG                     = 0x4800000000000000
> Read Short LOG               = 0xc13ff0f0f0047218
> 
> 
> 
> -----------------  Processor 3 LPMC Information ------------------
> 
> Check Type                   = 0x00000000
> IC Parity Info               = 0x00000000
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x00000000
> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0x0000000000000000
> System Requestor Address     = 0x0000000000000000
> 
> 
> 
> -----------------  Processor 3 TOC Information -------------------
> 
> General Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 
> 
> Control Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 
> Space Registers 0 - 7
> 00-03  00000000          00000000          00000000          00000000
> 04-07  00000000          00000000          00000000          00000000
> 
> IIA Space (back entry)       = 0x0000000000000000
> IIA Offset (back entry)      = 0x0000000000000000
> CPU State                    = 0x00000000
> 
> 
> --------------  Memory Error Log Information  --------------
> 
> Bus 0 Log Information
> 
> Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)
> 
>   OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
>   --  --  --      -----      -  -  -  ----  ---  --  --  --
>   X       X     ERR_ERROR       X            X           
> 
> Bus Requestor Address      = 0xfffffffffffa0000
> Bus Target Address         = 0x0000000000000000
> Bus Responder Address      = 0xfffffffffed00000
> 
> Error Status Reg           = 0x0000000000100010
> Runway Control Reg         = 0x0000021c00001418
> Runway Address Reg         = 0xc1bff0fffed08040
> Runway Data High Reg       = 0xe840c000083c025c
> Runway Data Low Reg        = 0xe840c000083c025c
> Memory Address Reg         = 0x000001ff3fffffff
> Memory Address Corr Reg    = 0x000001ff3fffffff
> Memory Syndrome Reg        = 0x0000000000000000
> Memory Syndrome Corr Reg   = 0x0000000000000000
> 
> 
> 
>  Address/Control Parity Error Registers  
> 
>    Address/Control Parity Error Bit (mem_addr_par_stat) Not Set 
> 
> 
> 
> ------------  I/O Module Error Log Information  ------------
> 
> 
>    No I/O module errors logged
> 
> 
> Main Menu: Enter command or menu > 
> 

--
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From - Thu Nov 08 21:04:38 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPPA hang with PCI SERR or PARITY enabling
Date: Thu, 30 Jul 2009 21:45:51 -0400 (EDT)
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To: randolph@tausq.org (Randolph Chung)
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In-Reply-To: <4A724818.4080909@tausq.org> from "Randolph Chung" at Jul 31, 2009 09:25:44 am
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Actually, the actual error seems to occur after:

> [17179584.436000] tulip 0000:18:00.0: enabling SERR and PARITY (0003 -> 0143)

There are improvements in freeing unused kernel memory in 2.6.30.y,
particularly with the patch set that I posted.  I rarely see the
"Badness at ..." message.

If the system will boot all, it should be possible to use objdump to
examine the failing kernel to see where the hpmc occurred.  Otherwise,
look at the kernel on a different system.

If Randolph is right about "kernel functions" in the wrong section,
there should be messages about this in the build log about this.
Again, I believe 2.6.30 is improved in this regard.

> Please see http://www.parisc-linux.org/faq/kernelbug-howto.html
> 
> (Thought I just noticed some bits of it are no longer true, such as the 
> address ranges)
> 
> Anyway, from the output below, I suspect maybe we have some kernel 
> functions that are not in the right section, since the error happens 
> right after  "Freeing unused kernel memory"?
> 
> But this is just a guess.
> 
> randolph
> 
> Meelis Roos wrote:
> >>> 0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
> >>> 0x5800087000FF6292 00006D05 0F092C37 - type 11 = Timestamp 06/15/2009 09:44:55
> >> I believe FF6292 is a HPMC.  Please collect and post the "ser pim" output
> >> for the above.  It would also help if the location of the HPMC can be related
> >> to your compiled kernel using objdump.
> > 
> > Well, it took some time, but I'm back to it. I rebooted a 
> > Debian-packaged kernel and got SER PIM output as well for the same boot. 
> > I also checked that there's nothing more in GSP console log.
> > 
> > As I can't boot it up with any kernel currently, I could not objdump the 
> > specific image, but I know it's 2.6.29-5 version of Debian 
> > 2.6.29-2-parisc64-smp kernel. Will investigate if I get a match - what 
> > address should I be decoding?
> > 
> > Main Menu: Enter command or menu > bo
> > NOTICE: System integrity at risk when selftest(s) are disabled.
> >         Enabling selftests with "ser sel on" will prevent this note.
> >         Do you wish to continue the boot?  [Y] or N: y
> > Interact with IPL (Y, N, or Cancel)?> y
> > 
> > Booting... 
> > Boot IO Dependent Code (IODC) revision 1
> > 
> > 
> > HARD Booted.
> > palo ipl 1.14 root@penalosa Wed Oct  8 15:04:37 UTC 2008
> > Skipping extended partition 6 - beyond reach of IPL
> > 
> > Partition Start(MB) End(MB) Id Type
> > 1               1      31   f0 Palo
> > 2              32     156   83 ext2
> > 5             157   33408   83 ext2
> > 
> > PALO(F0) partition contains:
> >     0/vmlinux64 6240197 bytes @ 0x48000
> > 
> > Information: No console specified on kernel command line. This is normal.
> > PALO will choose the console currently used by firmware (serial).Current command line:
> > 2/vmlinux root=/dev/sda5 initrd=2/initrd.img HOME=/ console=ttyS0 TERM=vt102
> >  0: 2/vmlinux
> >  1: root=/dev/sda5
> >  2: initrd=2/initrd.img
> >  3: HOME=/
> >  4: console=ttyS0
> >  5: TERM=vt102
> > 
> > <#>    edit the numbered field
> > 'b'    boot with this command line
> > 'r'    restore command line
> > 'l'    list dir
> > ? 0 l
> > Directory listing of /.
> > 
> >   lost+found
> >   vmlinux
> >   initrd.img-2.6.29-rc1.bak
> >   initrd.img
> >   vmlinux.old
> >   System.map-2.6.29-rc1
> >   vmlinux-2.6.29-rc1
> >   config-2.6.29-rc8
> >   System.map-2.6.29-rc8
> >   vmlinux-2.6.29-rc8
> >   initrd.img-2.6.29-rc8
> >   config-2.6.29-rc1
> >   initrd.img-2.6.29-rc1
> >   System.map-2.6.26-1-parisc64-smp
> >   System.map-2.6.26-1-parisc64
> >   config-2.6.26-1-parisc64
> >   vmlinux-2.6.26-1-parisc64
> >   vmlinux-2.6.26-1-parisc64-smp
> >   config-2.6.26-1-parisc64-smp
> >   initrd.img-2.6.26-1-parisc64-smp
> >   initrd.img-2.6.26-1-parisc64
> >   initrd.img.old
> >   initrd.img-2.6.26-1-parisc64-smp.bak
> >   System.map-2.6.29-2-parisc64-smp
> >   vmlinux-2.6.29-2-parisc64-smp
> >   config-2.6.29-2-parisc64-smp
> >   initrd.img-2.6.29-2-parisc64-smp
> > 
> > Current command line:
> > 2/vmlinux root=/dev/sda5 initrd=2/initrd.img HOME=/ console=ttyS0 TERM=vt102
> >  0: 2/vmlinux
> >  1: root=/dev/sda5
> >  2: initrd=2/initrd.img
> >  3: HOME=/
> >  4: console=ttyS0
> >  5: TERM=vt102
> > 
> > <#>    edit the numbered field
> > 'b'    boot with this command line
> > 'r'    restore command line
> > 'l'    list dir
> > ? 0
> > 2/vmlinux-2.6.29-2-parisc64-smp
> > Current command line:
> > 2/vmlinux-2.6.29-2-parisc64-smp root=/dev/sda5 initrd=2/initrd.img HOME=/ console=ttyS0 TERM=vt102
> >  0: 2/vmlinux-2.6.29-2-parisc64-smp
> >  1: root=/dev/sda5
> >  2: initrd=2/initrd.img
> >  3: HOME=/
> >  4: console=ttyS0
> >  5: TERM=vt102
> > 
> > <#>    edit the numbered field
> > 'b'    boot with this command line
> > 'r'    restore command line
> > 'l'    list dir
> > ? 0 2
> > initrd=2/initrd.img-2.6.29-2-parisc64-smp
> > Current command line:
> > 2/vmlinux-2.6.29-2-parisc64-smp root=/dev/sda5 initrd=2/initrd.img-2.6.29-2-parisc64-smp HOME=/ console=ttyS0 TERM=vt102
> >  0: 2/vmlinux-2.6.29-2-parisc64-smp
> >  1: root=/dev/sda5
> >  2: initrd=2/initrd.img-2.6.29-2-parisc64-smp
> >  3: HOME=/
> >  4: console=ttyS0
> >  5: TERM=vt102
> > 
> > <#>    edit the numbered field
> > 'b'    boot with this command line
> > 'r'    restore command line
> > 'l'    list dir
> > ? 0 b
> > 
> > Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.29-2-parisc64-smp'
> > Selected kernel: /vmlinux-2.6.29-2-parisc64-smp from partition 2
> > Selected ramdisk: /initrd.img-2.6.29-2-parisc64-smp from partition 2
> > ELF64 executable
> > Entry 00100000 first 00100000 n 3
> > Segment 0 load 00100000 size 4784128 mediaptr 0x1000
> > Segment 1 load 00628000 size 403984 mediaptr 0x491000
> > Segment 2 load 0068c000 size 317824 mediaptr 0x4f4000
> > Loading ramdisk 7887983 bytes @ 3f868000...
> > Branching to kernel entry point 0x00100000.  If this is the last
> > message you see, you may need to switch your console.  This is
> > a common symptom -- search the FAQ and mailing list at parisc-linux.org
> > 
> > [    0.000000] Initializing cgroup subsys cpuset
> > [    0.000000] Initializing cgroup subsys cpu
> > [    0.000000] Linux version 2.6.29-2-parisc64-smp (Debian 2.6.29-5) (waldi@debian.org) (gcc version 4.3.3 (GCC) ) #1 SMP Mon May 18 14:55:30 UTC 2009
> > [    0.000000] unwind_init: start = 0x404bf0a4, end = 0x404eb424, entries = 11320
> > [    0.000000] WARNING: Out of order unwind entry! 00000000404c0fb4 and 00000000404c0fc4
> > [    0.000000] WARNING: Out of order unwind entry! 00000000404c0fc4 and 00000000404c0fd4
> > [    0.000000] FP[0] enabled: Rev 1 Model 16
> > [    0.000000] The 64-bit Kernel has started...
> > [    0.000000] console [ttyB0] enabled
> > [    0.000000] Initialized PDC Console for debugging.
> > [    0.000000] Determining PDC firmware type: 64 bit PAT.
> > [    0.000000] model 00005c90 00000491 00000000 00000002 2353fbcb 100000f0 00000008 000000b2 000000b2
> > [    0.000000] vers  00000203
> > [    0.000000] CPUID vers 17 rev 8 (0x00000228)
> > [    0.000000] capabilities 0x1
> > [    0.000000] model 9000/800/L1000-44
> > [    0.000000] Total Memory: 3072 MB
> > [    0.000000] initrd: 7f868000-7ffedc6f
> > [    0.000000] initrd: reserving 3f868000-3ffedc6f (mem_max c0000000)
> > [    0.000000] SMP: bootstrap CPU ID is 0
> > [    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 775680
> > [    0.000000] Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.29-2-parisc64-smp
> > [    0.000000] PID hash table entries: 4096 (order: 12, 32768 bytes)
> > [17179569.184000] Console: colour dummy device 160x64
> > [17179569.200000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
> > [17179569.240000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
> > [17179569.760000] Memory: 3075708k/3145728k available (3164k kernel code, 69364k reserved, 1459k data, 312k init)
> > [17179569.772000] virtual kernel memory layout:
> > [17179569.772000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
> > [17179569.772000]     memory  : 0x0000000040000000 - 0x0000000100000000   (3072 MB)
> > [17179569.772000]       .init : 0x000000004068c000 - 0x00000000406da000   ( 312 kB)
> > [17179569.772000]       .data : 0x00000000404173d0 - 0x0000000040584000   (1459 kB)
> > [17179569.772000]       .text : 0x0000000040100000 - 0x00000000404173d0   (3164 kB)
> > [17179569.840000] Calibrating delay loop... 876.54 BogoMIPS (lpj=1753088)
> > [17179569.936000] Security Framework initialized
> > [17179569.944000] SELinux:  Disabled at boot.
> > [17179569.956000] Mount-cache hash table entries: 256
> > [17179570.060000] Initializing cgroup subsys ns
> > [17179570.068000] Initializing cgroup subsys cpuacct
> > [17179570.072000] Initializing cgroup subsys devices
> > [17179570.076000] Initializing cgroup subsys freezer
> > [17179570.080000] Initializing cgroup subsys net_cls
> > [17179570.096000] Brought up 1 CPUs
> > [17179570.348000] net_namespace: 1880 bytes
> > [17179570.352000] regulator: core version 0.5
> > [17179570.480000] NET: Registered protocol family 16
> > [17179570.492000] EISA bus registered
> > [17179570.500000] Searching for devices...
> > [17179571.076000] Found devices:
> > [17179571.080000] 1. Rhapsody DC- 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5c9, 0x00004 }
> > [17179571.092000] 2. Rhapsody DC- 440 at 0xfffffffffffa6000 [166] { 0, 0x0, 0x5c9, 0x00004 }
> > [17179571.100000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x095, 0x00009 }
> > [17179571.108000] 4. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
> > [17179571.112000] 5. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
> > [17179571.188000] 6. Elroy PCI Bridge at 0xfffffffffed32000 [0/1] { 13, 0x0, 0x782, 0x0000a }
> > [17179571.196000] 7. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
> > [17179571.204000] 8. Elroy PCI Bridge at 0xfffffffffed36000 [0/3] { 13, 0x0, 0x782, 0x0000a }
> > [17179571.212000] 9. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
> > [17179571.220000] 10. Elroy PCI Bridge at 0xfffffffffed3a000 [0/5] {
> > ********** VIRTUAL FRONT PANEL **********
> > System Boot detected
> > *****************************************
> > LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
> >        ON       FLASH         OFF       ON         ON
> > LED State: There was a system interruption that did not take the system down.
> > Check Chassis and Console Logs for error messages.
> > 
> > processor                 system initialization      1C00
> > 
> > *****************************************
> > 
> > ************ EARLY BOOT VFP *************
> > End of early boot detected
> > *****************************************
> > [17179572.312000] powersw: Soft power switch support not available.
> > [17179572.328000] bio: create slab <bio-0> at 0
> > [17179572.480000] NET: Registered protocol family 2
> > [17179572.540000] IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
> > [17179572.552000] TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
> > [17179572.624000] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
> > [17179572.748000] TCP: Hash tables configured (established 262144 bind 65536)
> > [17179572.756000] TCP reno registered
> > [17179572.768000] NET: Registered protocol family 1
> > [17179572.880000] checking if image is initramfs... it is
> > [17179576.376000] Freeing initrd memory: 7703k freed
> > [17179576.384000] Chassis warnings not supported.
> > [17179576.392000] Performance monitoring counters enabled for Rhapsody DC- 440
> > [17179576.404000] audit: initializing netlink socket (disabled)
> > [17179576.416000] type=2000 audit(1248974998.722:1): initialized
> > [17179576.428000] VFS: Disk quotas dquot_6.5.2
> > [17179576.436000] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
> > [17179576.460000] msgmni has been set to 6023
> > [17179576.468000] alg: No test for stdrng (krng)
> > [17179576.476000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
> > [17179576.488000] io scheduler noop registered
> > [17179576.492000] io scheduler anticipatory registered
> > [17179576.496000] io scheduler deadline registered
> > [17179576.500000] io scheduler cfq registered (default)
> > [17179576.604000] PDC Stable Storage facility v0.30
> > [17179577.424000] STI GSC/PCI core graphics driver Version 0.9a
> > [17179577.456000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> > [17179577.464000] serial 0000:00:04.0: enabling device (0146 -> 0147)
> > [17179577.476000] 0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 70) is a 16550A
> > [17179577.484000] console handover: boot [ttyB0] -> real [ttyS0]
> > [17179577.500000] 0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 70) is a 16550A
> > [17179577.524000] 0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 70) is a 16550A
> > [17179577.536000] serial 0000:00:05.0: enabling device (0000 -> 0003)
> > [17179577.548000] serial 0000:00:05.0: enabling SERR and PARITY (0003 -> 0143)
> > [17179577.564000] 0000:00:05.0: ttyS3 at MMIO 0xfffffffff8005000 (irq = 71) is a 16550A
> > [17179577.576000] Couldn't register serial port 0000:00:05.0: -28
> > [17179577.680000] brd: module loaded
> > [17179577.804000] mice: PS/2 mouse device common for all mice
> > [17179577.816000] rtc-parisc rtc-parisc: rtc core: registered rtc-parisc as rtc0
> > [17179577.828000] TCP cubic registered
> > [17179577.944000] NET: Registered protocol family 17
> > [17179577.956000] registered taskstats version 1
> > [17179578.088000] rtc-parisc rtc-parisc: setting system clock to 2009-07-30 17:30:00 UTC (1248975000)
> > [17179578.100000] Freeing unused kernel memory: <0>------------[ cut here ]------------
> > [17179578.236000] Badness at /build/buildd/linux-2.6-2.6.29/debian/build/source_hppa_none/kernel/smp.c:329
> > [17179578.372000] 
> > [17179578.372000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > [17179578.376000] PSW: 00001000000001100000000000001110 Not tainted
> > [17179578.512000] r00-03  000000000806000e 00000000406829c0 0000000040181194 0000000040590020
> > [17179578.652000] r04-07  00000000406791c0 000000004065e6a0 0000000000000000 00000000404fdfa0
> > [17179578.660000] r08-11  000000004065e6a0 0000000000000000 00000000406841c0 0000000000000001
> > [17179578.668000] r12-15  000000004067a9c0 0000000000000000 00000000406791c0 00000000000000ff
> > [17179578.676000] r16-19  00000000406809c0 00000000406879c0 00000000ff83a268 000000004[17179579.072000] r20-23  0000000000000000 00000000406da000 fffffffffffffffe 0000000000000001
> > [17179579.084000] r24-27  0000000000000000 000000004065e6a0 00000000404fdfa0 00000000406791c0
> > [17179579.092000] r28-31  000000000800000e 00000000ff8404a0 00000000ff840590 0000000000000000
> > [17179579.100000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> > [17179579.108000] sr04-07  0000000000000000 0000000000000000 000000000000000
> > [17179579.640000] 
> > [17179579.644000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040180e34 0000000040180e38
> > [17179579.652000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000002fe10040510
> > [17179579.660000]  CPU:        0   CR30: 00000000ff840000 CR31: ffffffffffffffff
> > [17179579.668000]  ORIG_R28: 000000000800000e
> > [17179579.672000]  IAOQ[0]: smp_call_function_many+0x44/0x368
> > [17179579.920000]  IAOQ[1]: smp_call_function_many+0x48/0x368
> > [17179579.928000]  RP(r2): smp_call_function+0x3c/0x50
> > [17179579.932000] Backtrace:
> > [17179579.932000]  [<0000000040181194>] smp_call_function+0x3c/0x50
> > [17179579.940000000401a1504>] call_rcu+0x44/0x58
> > [17179580.344000] 
> > [17179580.352000] ------------[ cut here ]------------
> > [17179580.360000] Badness at /build/buildd/linux-2.6-2.6.29/debian/build/source_hppa_none/kernel/smp.c:226
> > [17179580.368000] 
> > [17179580.368000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > [17179580.376000] PSW: 00001000000001101111111000001110 Tainted: G        W 
> > [17179580.380000] r00-03  000000ff0806fe0e 000000004067e1c0 0000000040180f1c 0000000000000000
> > [17179580.388000] r04-07  00000000406791c0 00000000065e6a0 0000000000000000
> > [17179580.908000] r08-11  000000004065e6a0 0000000000000000 00000000406841c0 0000000000000001
> > [17179580.920000] r12-15  000000004067a9c0 0000000000000000 00000000406791c0 00000000000000ff
> > [17179580.928000] r16-19  00000000406809c0 00000000406879c0 00000000ff83a268 0000000000000008
> > [17179580.936000] r20-23  00000000404fdfa0 0000000000000002 fffffffffffffffe 0000000000000001
> > [17179580.944000] r24-27  0000000000000000 000000004065e6a0 0000000000000001 0000000041.340000] r28-31  000000000800000e 00000000ff840560 00000000ff840660 0000000000000008
> > [17179581.476000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> > [17179581.492000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> > [17179581.500000] 
> > [17179581.500000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040180cd0 0000000040180cd4
> > [17179581.508000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000002fe100405e0
> > [17179581.512000]  CPU:        0   CR30: 00000000ff840000 CR31: fffffffff81.908000]  ORIG_R28: 0000000000000001
> > [17179582.036000]  IA
> > ********** VIRTUAL FRONT PANEL **********
> > System Boot detected
> > *****************************************
> > LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
> >        ON       FLASH         OFF       ON         ON
> > LED State: There was a system interruption that did not take the system down.
> > Check Chassis and Console Logs for error messages.
> > 
> > processor                 system initialization      1C00
> > 
> > *****************************************
> > 
> > ************ EARLY BOOT VFP *************
> > End of early boot detected
> > *****************************************
> > Begin: Loading essential drivers ... WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.
> > WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.
> > WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
> > [17179583.088000] SCSI subsystem initialized
> > WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.
> > WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.
> > WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
> > WARNING: All config files need .conf: /etc/modprobe.d/pnp-hotplug, it will be ignored in a future release.
> > WARNING: All config files need .conf: /etc/modprobe.d/display_class, it will be ignored in a future release.
> > WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
> > done.
> > Begin: Running /scripts/init-premount ... [17179583.856000] Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
> > [17179584.008000] tulip 0000:00:00.0: enabling device (0140 -> 0143)
> > [17179584.028000] tulip0: no phy info, aborting mtable build
> > [17179584.140000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
> > [17179584.164000] eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff8006000, 00:10:83:fe:9c:b0, IRQ 66.
> > [17179584.428000] tulip 0000:18:00.0: enabling device (0000 -> 0003)
> > [17179584.436000] tulip 0000:18:00.0: enabling SERR and PARITY (0003 -> 0143)
> > 
> > ************* SYSTEM ALERT **************
> > SYSTEM NAME: scaspdb24
> > DATE: 07/30/2009 TIME: 17:30:06
> > ALERT LEVEL: 7 = reserved
> > 
> > REASON FOR ALERT
> > SOURCE: 0 = unknown, no source stated
> > SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
> > PROBLEM DETAIL: 0 = no problem detail
> > 
> > LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
> >        ON       FLASH         OFF       ON         ON
> > LED State: There was a system interruption that did not take the system down.
> > Check Chassis and Console Logs for error messages.
> > 
> > 0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
> > 0x5800087000FF6292 00006D06 1E111E06 - type 11 = Timestamp 07/30/2009 17:30:06
> > A: ack read of this entry - X: Disable all future alert messages
> > Anything else skip redisplay the log entry
> > ->Choice:a
> > *****************************************
> > 
> > 
> > Leaving Console Mode - you may lose write access.
> > When Console Mode returns, type ^Ecf to get console write access.
> > 
> > Service Processor login: 
> > Service Processor password: 
> > 
> > 
> > 
> > 
> >              Hewlett-Packard Guardian Service Processor
> > 
> > 
> >              9000/800/L1000-44 System Name: scaspdb24
> > 
> > 
> > GSP Host Name:  scaspdb24
> > GSP> r ser pim
> > 
> > Unknown Command 
> > 
> > 
> > GSP Host Name:  scaspdb24
> > GSP> rs
> > 
> > 
> > RS
> > 
> > Execution of this command irrecoverably halts all system processing and
> > I/O activity and restarts the computer system.
> > 
> > Type Y to confirm your intention to restart the system: (Y/[N]) y
> > y
> >    -> SPU hardware was successfully issued a reset.
> > 
> > 
> > GSP Host Name:  scaspdb24
> > GSP> 
> > ********** VIRTUAL FRONT PANEL **********
> > System Boot detected
> > *****************************************
> > LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
> >        FLASH    FLASH         FLASH     ON         ON
> > LED State: Unexpected Reboot. Running non-OS code. Non-critical error detected.
> > Check Chassis and Console Logs for error messages.
> > 
> > platform                  config                     626F
> > processor                 slave rendezvous           1C17
> > processor                 test                       1142
> > processor                 test                       1100
> > processor                 test                       1100
> > processor                 test                       1100
> > processor                 test                       1100
> > processor                 test                       1100
> > processor                 test                       1100
> > processor                 test                       1100
> > processor                 test                       1100
> > processor                 test                       1100
> > PDH                       config                     322F
> > PDH                       test                       3149
> > PDH                       test                       3160
> > platform                  test                       616A
> > processor                 test                       1146
> > processor                 INIT                       1701
> > processor                 INIT                       1701
> > processor                 test                       1110
> > processor                 test                       1110
> > processor                 test                       1110
> > processor                 INIT                       1701
> > processor                 test                       1110
> > processor                 INIT                       1701
> > processor                 test                       1110
> > processor                 test                       1110
> > processor                 slave rendezvous           1C17
> > processor                 test                       1142
> > processor                 slave rendezvous           1C10
> > processor                 test                       1142
> > PDH                       test                       3158
> > PDH                       test                       3157
> > PDH                       test                       316E
> > PDH                       test                       316E
> > PDH                       test                       316E
> > PDH                       test                       316E
> > PDH                       test                       316E
> > PDH                       test                       316E
> > PDH                       test                       316E
> > memory                    config                     7210
> > memory                    INIT                       7702
> > memory                    INIT                       771D
> > memory                    test                       7150
> > memory                    config                     7213
> > memory                    config                     7213
> > memory                    config                     7214
> > memory                    config                     7213
> > memory                    config                     7213
> > memory                    config                     7214
> > memory                    config                     7213
> > memory                    config                     7213
> > memory                    config                     7214
> > memory                    config                     7213
> > memory                    config                     7213
> > memory                    config                     7214
> > memory                    config                     7213
> > memory                    config                     7213
> > memory                    config                     7214
> > memory                    config                     7213
> > memory                    config                     7213
> > memory                    config                     7214
> > memory                    config                     7213
> > memory                    config                     7213
> > memory                    config                     7214
> > memory                    config                     7213
> > memory                    config                     7213
> > memory                    config                     7214
> > memory                    config                     7213
> > memory                    config                     7213
> > memory                    config                     7215
> > memory                    config                     7216
> > memory                    config                     72A0
> > memory                    test                       71A1
> > memory                    test                       71A2
> > memory                    test                       71A4
> > memory                    test                       71A5
> > memory                    test                       71A6
> > memory                    test                       71A3
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    config                     7217
> > memory                    config                     7218
> > memory                    config                     72A0
> > memory                    test                       71A1
> > memory                    test                       71A2
> > memory                    test                       71A4
> > memory                    test                       71A5
> > memory                    test                       71A6
> > memory                    test                       71A3
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    config                     7210
> > I/O                       INIT                       8701
> > I/O                       test                       8118
> > I/O                       test                       8118
> > I/O                       INIT                       8701
> > I/O                       INIT                       8701
> > I/O                       INIT                       8701
> > I/O                       INIT                       8701
> > I/O                       INIT                       8701
> > I/O                       INIT                       8701
> > I/O                       INIT                       8701
> > I/O                       INIT                       8701
> > I/O                       INIT                       8701
> > memory                    config                     7240
> > memory                    INIT                       7702
> > memory                    config                     7241
> > memory                    config                     7243
> > memory                    config                     72A0
> > memory                    test                       71A1
> > memory                    test                       71A2
> > memory                    test                       71A4
> > memory                    test                       71A5
> > memory                    test                       71A6
> > memory                    test                       71A3
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A4
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A5
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    test                       71A6
> > memory                    INIT                       7745
> > memory                    config                     7240
> > I/O                       config                     8204
> > I/O                       config                     8204
> > I/O                       test                       8119
> > I/O                       test                       8119
> > I/O                       test                       8119
> > I/O                       test                       8119
> > I/O                       test                       8119
> > I/O                       test                       8119
> > I/O                       test                       8119
> > I/O                       test                       8119
> > I/O                       test                       8119
> > I/O                       test                       8119
> > I/O                       config                     8204
> > processor                 test                       1120
> > processor                 test                       1120
> > processor                 INIT                       1701
> > processor                 test                       1120
> > processor                 test                       1120
> > processor                 test                       1120
> > processor                 INIT                       1701
> > processor                 test                       1120
> > processor                 slave rendezvous           1C40
> > processor                 test                       1142
> > platform                  test                       612A
> > I/O                       config                     8238
> > 
> > *****************************************
> > 
> > ************ EARLY BOOT VFP *************
> > End of early boot detected
> > *****************************************
> > 
> > Firmware Version  44.28
> > 
> > Duplex Console IO Dependent Code (IODC) revision 1
> > 
> > ------------------------------------------------------------------------------
> >    (c) Copyright 1995-2002, Hewlett-Packard Company, All rights reserved
> > ------------------------------------------------------------------------------
> > 
> >   Processor   Speed            State           CoProcessor State  Cache Size
> >   Number                                       State              Inst    Data
> >   ---------  --------   ---------------------  -----------------  ------------
> >       0      440  MHz   Active                 Functional         512 KB   1 MB
> >       3      440  MHz   Idle                   Functional         512 KB   1 MB
> > 
> >   Central Bus Speed (in MHz)  :         82  
> >   Available Memory            :    3145728  KB
> >   Good Memory Required        :      22096  KB
> > 
> >    Primary boot path:    0/0/1/1.0           
> >    Alternate boot path:  0/7/0/0.97.20.19.0.0.5     
> >    Console path:         0/0/4/0.0           
> >    Keyboard path:        0/0/4/0.0           
> > 
> > 
> > ---- Main Menu ---------------------------------------------------------------
> > 
> >      Command                           Description
> >      -------                           -----------
> >      BOot [PRI|ALT|<path>]             Boot from specified path
> >      PAth [PRI|ALT] [<path>]           Display or modify a path
> >      SEArch [DIsplay|IPL] [<path>]     Search for boot devices
> > 
> >      COnfiguration menu                Displays or sets boot values
> >      INformation menu                  Displays hardware information
> >      SERvice menu                      Displays service commands
> > 
> >      DIsplay                           Redisplay the current menu
> >      HElp [<menu>|<command>]           Display help for menu or command
> >      RESET                             Restart the system
> > ----
> > Main Menu: Enter command or menu > ser pim
> > 
> > 
> > PROCESSOR PIM INFORMATION
> > 
> > Original Product Number:   A5576A
> > Current Product Number:    A5576A
> > 
> > 
> > -----------------  Processor 0 HPMC Information - PDC Version: 44.28  ------ 
> > 
> > Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)
> > 
> > HPMC Chassis Codes 
> > 
> >        Chassis Code        Extension 
> >        ------------        --------- 
> >        0x0000082000ff6242  0x0000000000000000
> >        0x1800082011006312  0xcb81000000000000
> >        0x0000087000ff6292  0x000000f0f0000000
> >        0x6000082070006062  0x0000000000100010
> >        0x7000082070006082  0x0000000000b92400
> >        0x7000082379006133  0xc1bff0fffed08040
> >        0x0000080080006310  0x0000000000000001
> >        0x000008008000631f  0x0000000000000000
> >        
> > 
> > General Registers 0 - 31
> > 00-03  0000000000000000  00000000402e7098  000000000c1b5c78  000000007f954680
> > 04-07  000000000c1b1000  000000000c1fc800  000000000c1c79b0  000000007f954000
> > 08-11  000000000c1fc830  0000000000000003  00000000fe87e800  000000000c1fc800
> > 12-15  0000000000000000  00000000fb6a2d5e  00000000fb6a2b5e  0000000000000003
> > 16-19  0000000000026420  0000000000000000  00000000fe87e880  000000007f9555b8
> > 20-23  0000000000000000  000000007f9552c0  ffffffffc0000000  0000000000100000
> > 24-27  0000000000000000  0000000000000000  000000000c1fc830  00000000406791c0
> > 28-31  000000000c1b4010  000000007f858be0  000000007f858c90  000000000c1b3fd0
> > 
> > 
> > Control Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 08-11  000000000000011c  0000000000000000  00000000000000c0  0000000000000001
> > 12-15  0000000000000000  0000000000000000  0000000000103000  ff80000000000000
> > 16-19  0000003aeb5d81e1  0000000000000000  00000000402e70d0  000000000f40109c
> > 20-23  00000000a627ff41  000000004fdfc830  000000ff0804ff0f  8000000000000000
> > 24-27  0000000000586000  000000003f892000  ffffffffffffffff  0000000040001480
> > 28-31  ffffffffffffffff  ffffffffffffff2f  000000007f858000  ffffffffffffffff
> > 
> > Space Registers 0 - 7
> > 00-03  0004d800          00000000          00000000          00047000
> > 04-07  00000000          00000000          00000000          00000000
> > 
> > 
> > IIA Space (back entry)       = 0x0000000000000000
> > IIA Offset (back entry)      = 0x00000000402e70d4
> > Check Type                   = 0x20000000
> > CPU State                    = 0x9e000004
> > Cache Check                  = 0x00000000
> > TLB Check                    = 0x00000000
> > Bus Check                    = 0x0030103b
> > Assists Check                = 0x00000000
> > Assist State                 = 0x00000000
> > Path Info                    = 0x00000000
> > System Responder Address     = 0x000000ffd053f830
> > System Requestor Address     = 0xfffffffffffa0000
> > 
> > 
> > Floating Point Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 04-07  0000000000000000  00000000bf840350  00000000bf840358  0000000000000008
> > 08-11  000000004020b518  00000000ff83a268  0000000000000000  0000000000000002
> > 12-15  00000000ff83fc10  00000000ff8403f0  00000000ff83fc00  00000000406791c0
> > 16-19  0000000000000002  00000000ff83a268  00000000406879c0  00000000406809c0
> > 20-23  00000000000000ff  00000000406791c0  0000000000000000  0000000000000000
> > 24-27  0000000000000000  0000000000000000  fffffffffffff000  00000000fefa6000
> > 28-31  0000000000000000  0000000000000000  ffffffffffffff9c  00000000406791c0
> > 
> > 
> > Check Summary                = 0xcb81000000000000
> > Available Memory             = 0x00000000c0000000
> > CPU Diagnose Register 2      = 0x0203000100802004
> > CPU Status Register 0        = 0x2440c24000000000
> > CPU Status Register 1        = 0x8002000000000000
> > SADD LOG                     = 0x147ffcffffffffff
> > Read Short LOG               = 0xc1af00ffd053f830
> > 
> > 
> > 
> > -----------------  Processor 0 LPMC Information ------------------
> > 
> > Check Type                   = 0x00000000
> > IC Parity Info               = 0x00000000
> > Cache Check                  = 0x00000000
> > TLB Check                    = 0x00000000
> > Bus Check                    = 0x00000000
> > Assists Check                = 0x00000000
> > Assist State                 = 0x00000000
> > Path Info                    = 0x00000000
> > System Responder Address     = 0x0000000000000000
> > System Requestor Address     = 0x0000000000000000
> > 
> > 
> > 
> > -----------------  Processor 0 TOC Information -------------------
> > 
> > General Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 
> > 
> > Control Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 
> > Space Registers 0 - 7
> > 00-03  00000000          00000000          00000000          00000000
> > 04-07  00000000          00000000          00000000          00000000
> > 
> > IIA Space (back entry)       = 0x0000000000000000
> > IIA Offset (back entry)      = 0x0000000000000000
> > CPU State                    = 0x00000000
> > 
> > 
> > 
> > -----------------  Processor 3 HPMC Information - PDC Version: 44.28  ------ 
> > 
> > Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)
> > 
> > HPMC Chassis Codes 
> > 
> >        Chassis Code        Extension 
> >        ------------        --------- 
> >        0x0000082000ff6242  0x0000000000000000
> >        0x1800082011036322  0xcb81800000000000
> >        
> > 
> > General Registers 0 - 31
> > 00-03  0000000000000000  000000004067a9c0  000000004011c18c  0000000043541518
> > 04-07  00000000406791c0  00000000fc985000  000000007f93f000  0000000000000000
> > 08-11  00000000fca67918  000000007f8d9cc0  00000000404eb740  0000000040000000
> > 12-15  0000000000000000  0000000000000200  0000000040311427  0000000000000000
> > 16-19  00000000419e85c8  000000007f93f888  0000000000000000  0000000000000000
> > 20-23  000000000003f93f  00000000fffffffa  0000000000000000  0000000000000040
> > 24-27  0000000000000010  00000000fc985fc0  000000004050a000  00000000406791c0
> > 28-31  0000000000000001  000000007f94c800  000000007f94c830  00000000005282a3
> > 
> > 
> > Control Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 08-11  0000000000000146  0000000000000000  00000000000000c0  0000000000000000
> > 12-15  0000000000000000  0000000000000000  0000000000103000  ff80000000000000
> > 16-19  0000003aeb5d7f36  0000000000000000  000000004011c190  0000000004a01200
> > 20-23  0000000000000000  00000000fc985000  000000ff0804f90f  8000000000000000
> > 24-27  0000000000586000  000000003f952000  fffffffff37f7f00  0000000040001b60
> > 28-31  fffffffff37f7f00  fffffffff37f7f00  000000007f94c000  fffffffff37f7f00
> > 
> > Space Registers 0 - 7
> > 00-03  00051800          00000000          00000000          00051800
> > 04-07  00000000          00000000          00000000          00000000
> > 
> > 
> > IIA Space (back entry)       = 0x0000000000000000
> > IIA Offset (back entry)      = 0x000000004011c194
> > Check Type                   = 0x20000000
> > CPU State                    = 0x9e000004
> > Cache Check                  = 0x00000000
> > TLB Check                    = 0x00000000
> > Bus Check                    = 0x0030000d
> > Assists Check                = 0x00000000
> > Assist State                 = 0x00000000
> > Path Info                    = 0x00000000
> > System Responder Address     = 0xfffffffffffa6000
> > System Requestor Address     = 0xfffffffffffa0000
> > 
> > 
> > Floating Point Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 04-07  0000000000000000  00000000bf840350  00000000bf840358  0000000000000008
> > 08-11  000000004020b518  00000000ff83a268  0000000000000000  0000000000000002
> > 12-15  00000000ff83fc10  00000000ff8403f0  00000000ff83fc00  00000000406791c0
> > 16-19  0000000000000002  00000000ff83a268  00000000406879c0  00000000406809c0
> > 20-23  00000000000000ff  00000000406791c0  0000000000000000  0000000a4067a9c0
> > 24-27  0000000000000000  00000000406841c0  fffffffffffff000  00000000fefa6000
> > 28-31  0000000000000000  0000000000000000  ffffffffffffff9c  00000000406791c0
> > 
> > 
> > Check Summary                = 0xcb81800000000000
> > Available Memory             = 0x00000000c0000000
> > CPU Diagnose Register 2      = 0x0203030100802004
> > CPU Status Register 0        = 0x3440c24000000000
> > CPU Status Register 1        = 0x8000000000000000
> > SADD LOG                     = 0x4800000000000000
> > Read Short LOG               = 0xc13ff0f0f0047218
> > 
> > 
> > 
> > -----------------  Processor 3 LPMC Information ------------------
> > 
> > Check Type                   = 0x00000000
> > IC Parity Info               = 0x00000000
> > Cache Check                  = 0x00000000
> > TLB Check                    = 0x00000000
> > Bus Check                    = 0x00000000
> > Assists Check                = 0x00000000
> > Assist State                 = 0x00000000
> > Path Info                    = 0x00000000
> > System Responder Address     = 0x0000000000000000
> > System Requestor Address     = 0x0000000000000000
> > 
> > 
> > 
> > -----------------  Processor 3 TOC Information -------------------
> > 
> > General Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 
> > 
> > Control Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> > 
> > Space Registers 0 - 7
> > 00-03  00000000          00000000          00000000          00000000
> > 04-07  00000000          00000000          00000000          00000000
> > 
> > IIA Space (back entry)       = 0x0000000000000000
> > IIA Offset (back entry)      = 0x0000000000000000
> > CPU State                    = 0x00000000
> > 
> > 
> > --------------  Memory Error Log Information  --------------
> > 
> > Bus 0 Log Information
> > 
> > Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)
> > 
> >   OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
> >   --  --  --      -----      -  -  -  ----  ---  --  --  --
> >   X       X     ERR_ERROR       X            X           
> > 
> > Bus Requestor Address      = 0xfffffffffffa0000
> > Bus Target Address         = 0x0000000000000000
> > Bus Responder Address      = 0xfffffffffed00000
> > 
> > Error Status Reg           = 0x0000000000100010
> > Runway Control Reg         = 0x0000021c00001418
> > Runway Address Reg         = 0xc1bff0fffed08040
> > Runway Data High Reg       = 0xe840c000083c025c
> > Runway Data Low Reg        = 0xe840c000083c025c
> > Memory Address Reg         = 0x000001ff3fffffff
> > Memory Address Corr Reg    = 0x000001ff3fffffff
> > Memory Syndrome Reg        = 0x0000000000000000
> > Memory Syndrome Corr Reg   = 0x0000000000000000
> > 
> > 
> > 
> >  Address/Control Parity Error Registers  
> > 
> >    Address/Control Parity Error Bit (mem_addr_par_stat) Not Set 
> > 
> > 
> > 
> > ------------  I/O Module Error Log Information  ------------
> > 
> > 
> >    No I/O module errors logged
> > 
> > 
> > Main Menu: Enter command or menu > 
> > 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:39 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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> Please see http://www.parisc-linux.org/faq/kernelbug-howto.html

Well, I can not find anything about interpreting SER PIM data there?

My system is 2-CPU L1000, that I forgot to re-mention as I reported to 
my old report that anyone but me had probably forgotten. Using GSP. 
ALso, I rebooted the hanging computer using 'RS' from GSP, not 'TC' - 
does that garble PIM data?

> Anyway, from the output below, I suspect maybe we have some kernel functions
> that are not in the right section, since the error happens right after
> "Freeing unused kernel memory"?

No, the real problem is below, this badness on SMP I was told to ignore 
here on this list in spring. The real problem happens after tuli driver 
loading and PCI configuration of the cards. From these, I only have the 
SER PIM data, no kernel backtrace.

> > Begin: Running /scripts/init-premount ... [17179583.856000] Linux Tulip
> > driver version 1.1.15-NAPI (Feb 27, 2007)
> > [17179584.008000] tulip 0000:00:00.0: enabling device (0140 -> 0143)
> > [17179584.028000] tulip0: no phy info, aborting mtable build
> > [17179584.140000] tulip0:  MII transceiver #1 config 1000 status 782d
> > advertising 0061.
> > [17179584.164000] eth0: Digital DS21142/43 Tulip rev 65 at MMIO
> > 0xfffffffff8006000, 00:10:83:fe:9c:b0, IRQ 66.
> > [17179584.428000] tulip 0000:18:00.0: enabling device (0000 -> 0003)
> > [17179584.436000] tulip 0000:18:00.0: enabling SERR and PARITY (0003 ->
> > 0143)
> > 
> > ************* SYSTEM ALERT **************
> > SYSTEM NAME: scaspdb24
> > DATE: 07/30/2009 TIME: 17:30:06
> > ALERT LEVEL: 7 = reserved
> > 
> > REASON FOR ALERT
> > SOURCE: 0 = unknown, no source stated
> > SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
> > PROBLEM DETAIL: 0 = no problem detail
> > 
> > LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
> >        ON       FLASH         OFF       ON         ON
> > LED State: There was a system interruption that did not take the system
> > down.
> > Check Chassis and Console Logs for error messages.
> > 
> > 0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
> > 0x5800087000FF6292 00006D06 1E111E06 - type 11 = Timestamp 07/30/2009
> > 17:30:06
[...]

> > Main Menu: Enter command or menu > ser pim
> > 
> > 
> > PROCESSOR PIM INFORMATION
> > 
> > Original Product Number:   A5576A
> > Current Product Number:    A5576A
> > 
> > 
> > -----------------  Processor 0 HPMC Information - PDC Version: 44.28  ------ 
> > Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)
> > 
> > HPMC Chassis Codes 
> >        Chassis Code        Extension        ------------        ---------
> > 0x0000082000ff6242  0x0000000000000000
> >        0x1800082011006312  0xcb81000000000000
> >        0x0000087000ff6292  0x000000f0f0000000
> >        0x6000082070006062  0x0000000000100010
> >        0x7000082070006082  0x0000000000b92400
> >        0x7000082379006133  0xc1bff0fffed08040
> >        0x0000080080006310  0x0000000000000001
> >        0x000008008000631f  0x0000000000000000
> >        
> > General Registers 0 - 31
> > 00-03  0000000000000000  00000000402e7098  000000000c1b5c78
> > 000000007f954680
> > 04-07  000000000c1b1000  000000000c1fc800  000000000c1c79b0
> > 000000007f954000
> > 08-11  000000000c1fc830  0000000000000003  00000000fe87e800
> > 000000000c1fc800
> > 12-15  0000000000000000  00000000fb6a2d5e  00000000fb6a2b5e
> > 0000000000000003
> > 16-19  0000000000026420  0000000000000000  00000000fe87e880
> > 000000007f9555b8
> > 20-23  0000000000000000  000000007f9552c0  ffffffffc0000000
> > 0000000000100000
> > 24-27  0000000000000000  0000000000000000  000000000c1fc830
> > 00000000406791c0
> > 28-31  000000000c1b4010  000000007f858be0  000000007f858c90
> > 000000000c1b3fd0
> > 
> > 
> > Control Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 04-07  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 08-11  000000000000011c  0000000000000000  00000000000000c0
> > 0000000000000001
> > 12-15  0000000000000000  0000000000000000  0000000000103000
> > ff80000000000000
> > 16-19  0000003aeb5d81e1  0000000000000000  00000000402e70d0
> > 000000000f40109c
> > 20-23  00000000a627ff41  000000004fdfc830  000000ff0804ff0f
> > 8000000000000000
> > 24-27  0000000000586000  000000003f892000  ffffffffffffffff
> > 0000000040001480
> > 28-31  ffffffffffffffff  ffffffffffffff2f  000000007f858000
> > ffffffffffffffff
> > 
> > Space Registers 0 - 7
> > 00-03  0004d800          00000000          00000000          00047000
> > 04-07  00000000          00000000          00000000          00000000
> > 
> > 
> > IIA Space (back entry)       = 0x0000000000000000
> > IIA Offset (back entry)      = 0x00000000402e70d4
> > Check Type                   = 0x20000000
> > CPU State                    = 0x9e000004
> > Cache Check                  = 0x00000000
> > TLB Check                    = 0x00000000
> > Bus Check                    = 0x0030103b
> > Assists Check                = 0x00000000
> > Assist State                 = 0x00000000
> > Path Info                    = 0x00000000
> > System Responder Address     = 0x000000ffd053f830
> > System Requestor Address     = 0xfffffffffffa0000
> > 
> > 
> > Floating Point Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 04-07  0000000000000000  00000000bf840350  00000000bf840358
> > 0000000000000008
> > 08-11  000000004020b518  00000000ff83a268  0000000000000000
> > 0000000000000002
> > 12-15  00000000ff83fc10  00000000ff8403f0  00000000ff83fc00
> > 00000000406791c0
> > 16-19  0000000000000002  00000000ff83a268  00000000406879c0
> > 00000000406809c0
> > 20-23  00000000000000ff  00000000406791c0  0000000000000000
> > 0000000000000000
> > 24-27  0000000000000000  0000000000000000  fffffffffffff000
> > 00000000fefa6000
> > 28-31  0000000000000000  0000000000000000  ffffffffffffff9c
> > 00000000406791c0
> > 
> > 
> > Check Summary                = 0xcb81000000000000
> > Available Memory             = 0x00000000c0000000
> > CPU Diagnose Register 2      = 0x0203000100802004
> > CPU Status Register 0        = 0x2440c24000000000
> > CPU Status Register 1        = 0x8002000000000000
> > SADD LOG                     = 0x147ffcffffffffff
> > Read Short LOG               = 0xc1af00ffd053f830
> > 
> > 
> > 
> > -----------------  Processor 0 LPMC Information ------------------
> > 
> > Check Type                   = 0x00000000
> > IC Parity Info               = 0x00000000
> > Cache Check                  = 0x00000000
> > TLB Check                    = 0x00000000
> > Bus Check                    = 0x00000000
> > Assists Check                = 0x00000000
> > Assist State                 = 0x00000000
> > Path Info                    = 0x00000000
> > System Responder Address     = 0x0000000000000000
> > System Requestor Address     = 0x0000000000000000
> > 
> > 
> > 
> > -----------------  Processor 0 TOC Information -------------------
> > 
> > General Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 04-07  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 08-11  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 12-15  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 16-19  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 20-23  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 24-27  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 28-31  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 
> > 
> > Control Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 04-07  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 08-11  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 12-15  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 16-19  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 20-23  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 24-27  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 28-31  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 
> > Space Registers 0 - 7
> > 00-03  00000000          00000000          00000000          00000000
> > 04-07  00000000          00000000          00000000          00000000
> > 
> > IIA Space (back entry)       = 0x0000000000000000
> > IIA Offset (back entry)      = 0x0000000000000000
> > CPU State                    = 0x00000000
> > 
> > 
> > 
> > -----------------  Processor 3 HPMC Information - PDC Version: 44.28  ------ 
> > Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)
> > 
> > HPMC Chassis Codes 
> >        Chassis Code        Extension        ------------        ---------
> > 0x0000082000ff6242  0x0000000000000000
> >        0x1800082011036322  0xcb81800000000000
> >        
> > General Registers 0 - 31
> > 00-03  0000000000000000  000000004067a9c0  000000004011c18c
> > 0000000043541518
> > 04-07  00000000406791c0  00000000fc985000  000000007f93f000
> > 0000000000000000
> > 08-11  00000000fca67918  000000007f8d9cc0  00000000404eb740
> > 0000000040000000
> > 12-15  0000000000000000  0000000000000200  0000000040311427
> > 0000000000000000
> > 16-19  00000000419e85c8  000000007f93f888  0000000000000000
> > 0000000000000000
> > 20-23  000000000003f93f  00000000fffffffa  0000000000000000
> > 0000000000000040
> > 24-27  0000000000000010  00000000fc985fc0  000000004050a000
> > 00000000406791c0
> > 28-31  0000000000000001  000000007f94c800  000000007f94c830
> > 00000000005282a3
> > 
> > 
> > Control Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 04-07  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 08-11  0000000000000146  0000000000000000  00000000000000c0
> > 0000000000000000
> > 12-15  0000000000000000  0000000000000000  0000000000103000
> > ff80000000000000
> > 16-19  0000003aeb5d7f36  0000000000000000  000000004011c190
> > 0000000004a01200
> > 20-23  0000000000000000  00000000fc985000  000000ff0804f90f
> > 8000000000000000
> > 24-27  0000000000586000  000000003f952000  fffffffff37f7f00
> > 0000000040001b60
> > 28-31  fffffffff37f7f00  fffffffff37f7f00  000000007f94c000
> > fffffffff37f7f00
> > 
> > Space Registers 0 - 7
> > 00-03  00051800          00000000          00000000          00051800
> > 04-07  00000000          00000000          00000000          00000000
> > 
> > 
> > IIA Space (back entry)       = 0x0000000000000000
> > IIA Offset (back entry)      = 0x000000004011c194
> > Check Type                   = 0x20000000
> > CPU State                    = 0x9e000004
> > Cache Check                  = 0x00000000
> > TLB Check                    = 0x00000000
> > Bus Check                    = 0x0030000d
> > Assists Check                = 0x00000000
> > Assist State                 = 0x00000000
> > Path Info                    = 0x00000000
> > System Responder Address     = 0xfffffffffffa6000
> > System Requestor Address     = 0xfffffffffffa0000
> > 
> > 
> > Floating Point Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 04-07  0000000000000000  00000000bf840350  00000000bf840358
> > 0000000000000008
> > 08-11  000000004020b518  00000000ff83a268  0000000000000000
> > 0000000000000002
> > 12-15  00000000ff83fc10  00000000ff8403f0  00000000ff83fc00
> > 00000000406791c0
> > 16-19  0000000000000002  00000000ff83a268  00000000406879c0
> > 00000000406809c0
> > 20-23  00000000000000ff  00000000406791c0  0000000000000000
> > 0000000a4067a9c0
> > 24-27  0000000000000000  00000000406841c0  fffffffffffff000
> > 00000000fefa6000
> > 28-31  0000000000000000  0000000000000000  ffffffffffffff9c
> > 00000000406791c0
> > 
> > 
> > Check Summary                = 0xcb81800000000000
> > Available Memory             = 0x00000000c0000000
> > CPU Diagnose Register 2      = 0x0203030100802004
> > CPU Status Register 0        = 0x3440c24000000000
> > CPU Status Register 1        = 0x8000000000000000
> > SADD LOG                     = 0x4800000000000000
> > Read Short LOG               = 0xc13ff0f0f0047218
> > 
> > 
> > 
> > -----------------  Processor 3 LPMC Information ------------------
> > 
> > Check Type                   = 0x00000000
> > IC Parity Info               = 0x00000000
> > Cache Check                  = 0x00000000
> > TLB Check                    = 0x00000000
> > Bus Check                    = 0x00000000
> > Assists Check                = 0x00000000
> > Assist State                 = 0x00000000
> > Path Info                    = 0x00000000
> > System Responder Address     = 0x0000000000000000
> > System Requestor Address     = 0x0000000000000000
> > 
> > 
> > 
> > -----------------  Processor 3 TOC Information -------------------
> > 
> > General Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 04-07  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 08-11  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 12-15  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 16-19  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 20-23  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 24-27  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 28-31  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 
> > 
> > Control Registers 0 - 31
> > 00-03  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 04-07  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 08-11  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 12-15  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 16-19  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 20-23  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 24-27  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 28-31  0000000000000000  0000000000000000  0000000000000000
> > 0000000000000000
> > 
> > Space Registers 0 - 7
> > 00-03  00000000          00000000          00000000          00000000
> > 04-07  00000000          00000000          00000000          00000000
> > 
> > IIA Space (back entry)       = 0x0000000000000000
> > IIA Offset (back entry)      = 0x0000000000000000
> > CPU State                    = 0x00000000
> > 
> > 
> > --------------  Memory Error Log Information  --------------
> > 
> > Bus 0 Log Information
> > 
> > Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)
> > 
> >   OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
> >   --  --  --      -----      -  -  -  ----  ---  --  --  --
> >   X       X     ERR_ERROR       X            X           
> > Bus Requestor Address      = 0xfffffffffffa0000
> > Bus Target Address         = 0x0000000000000000
> > Bus Responder Address      = 0xfffffffffed00000
> > 
> > Error Status Reg           = 0x0000000000100010
> > Runway Control Reg         = 0x0000021c00001418
> > Runway Address Reg         = 0xc1bff0fffed08040
> > Runway Data High Reg       = 0xe840c000083c025c
> > Runway Data Low Reg        = 0xe840c000083c025c
> > Memory Address Reg         = 0x000001ff3fffffff
> > Memory Address Corr Reg    = 0x000001ff3fffffff
> > Memory Syndrome Reg        = 0x0000000000000000
> > Memory Syndrome Corr Reg   = 0x0000000000000000
> > 
> > 
> > 
> >  Address/Control Parity Error Registers  
> >    Address/Control Parity Error Bit (mem_addr_par_stat) Not Set 
> > 
> > 
> > ------------  I/O Module Error Log Information  ------------
> > 
> > 
> >    No I/O module errors logged
> > 
> > 
> > Main Menu: Enter command or menu > 
> 

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:04:39 2018
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From: Thibaut VARENE <varenet@parisc-linux.org>
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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On Fri, Jul 31, 2009 at 8:28 AM, Meelis Roos <mroos@linux.ee> wrote:
>
> > Please see http://www.parisc-linux.org/faq/kernelbug-howto.html
>
> Well, I can not find anything about interpreting SER PIM data there?

Are you sure? There are basic explanations about the info we need. For instance:

"- The r02 register is the "return pointer" - it indicates the calling function
- The IAOQ contents specify the address of the instruction where the
fault occured."

Of course they are undecoded, that's why you need to be able to
objdump the kernel.

> My system is 2-CPU L1000, that I forgot to re-mention as I reported to
> my old report that anyone but me had probably forgotten. Using GSP.
> ALso, I rebooted the hanging computer using 'RS' from GSP, not 'TC' -
> does that garble PIM data?

After HPMC, RS is ok. Remember to always ser clearpim after collecting the info.

> > Anyway, from the output below, I suspect maybe we have some kernel functions
> > that are not in the right section, since the error happens right after
> > "Freeing unused kernel memory"?
>
> No, the real problem is below, this badness on SMP I was told to ignore
> here on this list in spring. The real problem happens after tuli driver
> loading and PCI configuration of the cards. From these, I only have the
> SER PIM data, no kernel backtrace.

PIM will contain relevant (though undecoded) information, so that's
already good to have.

HTH

--
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:04:39 2018
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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> On Fri, Jul 31, 2009 at 8:28 AM, Meelis Roos <mroos@linux.ee> wrote:
> >
> > > Please see http://www.parisc-linux.org/faq/kernelbug-howto.html
> >
> > Well, I can not find anything about interpreting SER PIM data there?
> 
> Are you sure? There are basic explanations about the info we need. For instance:
> 
> "- The r02 register is the "return pointer" - it indicates the calling function
> - The IAOQ contents specify the address of the instruction where the
> fault occured."
> 
> Of course they are undecoded, that's why you need to be able to
> objdump the kernel.

I tried to download the kernel package, but it's gone from the debian
servers.  So, you will have to run objdump yourself.  Just do

hppa64-linux-gnu-objdump vmlinux-2.6.29-2-parisc64-smp | less

This will allow you to find the instruction where the fault occured.
Comparison of the instructions with the register dump should indicate
the cause of the hpmc.  Also search for the address contained in r02.
That should be the calling function in most cases.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:39 2018
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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> hppa64-linux-gnu-objdump vmlinux-2.6.29-2-parisc64-smp | less

Sorry, this should be:

hppa64-linux-gnu-objdump -d vmlinux-2.6.29-2-parisc64-smp | less

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global Offset Table 
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To: Frans Pop <elendil@planet.nl>, 539378@bugs.debian.org,
	Debian HPPA Port List <debian-hppa@lists.debian.org>,
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On Fri, Jul 31, 2009 at 5:17 AM, Frans Pop<elendil@planet.nl> wrote:
> Affects both stable and unstable!
>
> kernel: Linux version 2.6.26-2-parisc64-smp [...]
> kernel: nfs: Global Offset Table overflow (used 1075, allowed 1023)
>
> kernel: Linux version 2.6.30-1-parisc64 [...]
> kernel: nfs: Global Offset Table overflow (used 1164, allowed 1023)
>
> The error comes from arch/parisc/kernel/module.c.
> Looks like it is a known issue:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2006-October/054826.html

CC'ing parisc-linux since this is a kernel issue.

Helge,

Did you ever work around the GOT limitations?

To give you a bit of background, position independent code (a module)
can't have any virtual addresses (they aren't known), therefore when
you need to compute the address of an object you do so using the
global offset table. After relocation processing the GOT allows you to
translate an object by name to a virtual address e.g. If you take the
address of a function, then relocations would cause a GOT entry to be
filled such that this entry contains the virtual address of the
function. The GOT stubs are pieces of code that load virtual addresses
from the GOT and call them. We use GOT stubs to call functions which
are not local to the module.

Only 32-bit targets have the 14-bit signed immediate offset (0x3fff),
which becomes a 13-bit limit when loading positive offsets e.g.
+0x1fff or 1023 GOT slots.

However, on 64-bit the long format of ldd has a 16-bit signed
immediate offset (0xffff), meaning it can reach +0x7fff e.g. 4095 GOT
slots.

Do you have the time to test something out?

* Make this conditional on 32-bit vs. 64-bit and allow for 4095 GOT
entries on 64-bit.
* Fix ELF_GOT_STUB for the 64-bit case. It needs to reassemble a
16-bit offset, the current code is IMO incorrect. i.e. it should be "&
0x7fff", and use a new reassemble_16 see the PA 2.0 book definition of
ldd.
* Build kernel.
* Test loading NFS moudle.

That should be it :-)

> I tried unloading other modules, but that made no difference
> ("used" value remained unchanged).

Unloading modules won't help, it's one GOT per module.

> Does this mean that using nfs on hppa is not possible at all?

No, I use nfs on my hppa system.

Cheers,
Carlos.
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From - Thu Nov 08 21:04:39 2018
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From - Thu Nov 08 21:04:39 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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On Fri, Jul 31, 2009 at 2:00 PM, dann frazier<dannf@debian.org> wrote:
> fyi: http://bugs.debian.org/539378

Thanks Dann. I've written up a response along with sketch of a
solution. My free time is pretty swamped with porter work and glibc
testing, so I was hoping one of the kernel hackers could implement my
suggestion.

Cheers,
Carlos.
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From - Thu Nov 08 21:04:39 2018
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Cc: elendil@planet.nl, 539378@bugs.debian.org,
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> On Fri, Jul 31, 2009 at 5:17 AM, Frans Pop<elendil@planet.nl> wrote:
> > Affects both stable and unstable!
> >
> > kernel: Linux version 2.6.26-2-parisc64-smp [...]
> > kernel: nfs: Global Offset Table overflow (used 1075, allowed 1023)
> >
> > kernel: Linux version 2.6.30-1-parisc64 [...]
> > kernel: nfs: Global Offset Table overflow (used 1164, allowed 1023)
> >
> > The error comes from arch/parisc/kernel/module.c.
> > Looks like it is a known issue:
> > http://lists.parisc-linux.org/pipermail/parisc-linux/2006-October/054826.html

I've seen the same problem.  Sent a message to the parisc-linux list
about this recently.

> Only 32-bit targets have the 14-bit signed immediate offset (0x3fff),
> which becomes a 13-bit limit when loading positive offsets e.g.
> +0x1fff or 1023 GOT slots.

Can't we offset the table and double the number of entries?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:39 2018
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Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global Offset Table
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Cc: Frans Pop <elendil@planet.nl>, 539378@bugs.debian.org,
	Debian HPPA Port List <debian-hppa@lists.debian.org>,
	linux-parisc <linux-parisc@vger.kernel.org>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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On 07/31/2009 08:49 PM, Carlos O'Donell wrote:
> [...]
> However, on 64-bit the long format of ldd has a 16-bit signed
> immediate offset (0xffff), meaning it can reach +0x7fff e.g. 4095 GOT
> slots.
>
> Do you have the time to test something out?
>
> * Make this conditional on 32-bit vs. 64-bit and allow for 4095 GOT
> entries on 64-bit.
> * Fix ELF_GOT_STUB for the 64-bit case. It needs to reassemble a
> 16-bit offset, the current code is IMO incorrect. i.e. it should be "&
> 0x7fff", and use a new reassemble_16 see the PA 2.0 book definition of
> ldd.
> * Build kernel.
> * Test loading NFS moudle.

Carlos, thanks a lot for those explanations (and keep up your work with NPTL :-)).
I'll know what you mean, and if it works it's a good idea.
I'll try to come up with a patch.

A few notes:
- the GOT table is only used for 64bit anyway, so no need to differentiate for 32/64bits
- Another possibility could be to sort the tables, so to reduce the number of needed entries.

Helge
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On 07/31/2009 09:03 PM, John David Anglin wrote:
>> Only 32-bit targets have the 14-bit signed immediate offset (0x3fff),
>> which becomes a 13-bit limit when loading positive offsets e.g.
>> +0x1fff or 1023 GOT slots.
>
> Can't we offset the table and double the number of entries?

Dave,
Can you explain this idea a little more?
Helge
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Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global Offset Table
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On Fri, Jul 31, 2009 at 5:09 PM, Helge Deller<deller@gmx.de> wrote:
> On 07/31/2009 09:03 PM, John David Anglin wrote:
>>>
>>> Only 32-bit targets have the 14-bit signed immediate offset (0x3fff),
>>> which becomes a 13-bit limit when loading positive offsets e.g.
>>> +0x1fff or 1023 GOT slots.
>>
>> Can't we offset the table and double the number of entries?
>
> Dave,
> Can you explain this idea a little more?

I would also like a little more details.

However, this is similar to the DT_PLTGOT issue in dynamic libraries.
The value chosen for %dp is arbitrary, and if we made it point into
the middle of the GOT table, then you would reference the GOT using
both positive and negative offsets.

For example, this code:
fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset;

Arbitrary chooses the module %dp to point at the start of got_offset,
why not make that got_offset + <half way>.

Cheers,
Carlos.
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From - Thu Nov 08 21:04:40 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global Offset Table
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On Fri, Jul 31, 2009 at 5:13 PM, Carlos O'Donell<carlos@systemhalted.org> wrote:
> On Fri, Jul 31, 2009 at 5:09 PM, Helge Deller<deller@gmx.de> wrote:
>> On 07/31/2009 09:03 PM, John David Anglin wrote:
>>>>
>>>> Only 32-bit targets have the 14-bit signed immediate offset (0x3fff),
>>>> which becomes a 13-bit limit when loading positive offsets e.g.
>>>> +0x1fff or 1023 GOT slots.
>>>
>>> Can't we offset the table and double the number of entries?
>>
>> Dave,
>> Can you explain this idea a little more?
>
> I would also like a little more details.
>
> However, this is similar to the DT_PLTGOT issue in dynamic libraries.
> The value chosen for %dp is arbitrary, and if we made it point into
> the middle of the GOT table, then you would reference the GOT using
> both positive and negative offsets.
>
> For example, this code:
> fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset;
>
> Arbitrary chooses the module %dp to point at the start of got_offset,
> why not make that got_offset + <half way>.

Let me be clearer, the value of "(Elf_Addr)me->module_core +
me->arch.got_offset" is the start of the GOT table for the module.

Cheers,
Carlos.
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From - Thu Nov 08 21:04:40 2018
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Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global Offset Table
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To: carlos@systemhalted.org (Carlos O'Donell)
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> On Fri, Jul 31, 2009 at 5:09 PM, Helge Deller<deller@gmx.de> wrote:
> > On 07/31/2009 09:03 PM, John David Anglin wrote:
> >>>
> >>> Only 32-bit targets have the 14-bit signed immediate offset (0x3fff),
> >>> which becomes a 13-bit limit when loading positive offsets e.g.
> >>> +0x1fff or 1023 GOT slots.
> >>
> >> Can't we offset the table and double the number of entries?
> >
> > Dave,
> > Can you explain this idea a little more?
> 
> I would also like a little more details.
> 
> However, this is similar to the DT_PLTGOT issue in dynamic libraries.
> The value chosen for %dp is arbitrary, and if we made it point into
> the middle of the GOT table, then you would reference the GOT using
> both positive and negative offsets.
> 
> For example, this code:
> fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset;
> 
> Arbitrary chooses the module %dp to point at the start of got_offset,
> why not make that got_offset + <half way>.

I don't have more details...  The idea is as Carlos outlined.  There's
code in the binutils elf32-hppa.c and elf64-hppa.c files to implement
the above for dynamic libraries.  That's what made me think of it.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global Offset Table
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On Fri, Jul 31, 2009 at 5:26 PM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> I don't have more details... =A0The idea is as Carlos outlined. =A0Th=
ere's
> code in the binutils elf32-hppa.c and elf64-hppa.c files to implement
> the above for dynamic libraries. =A0That's what made me think of it.

Binutils is not involved in the kernel module loader, instead
arch/parisc/kernel/module.c (get_fdesc) chooses where the gp will
point to.

If you set gp to the middle of the GOT table, *and* implement
long/short ldd access on 64-bit, then you would get a total of 8191
possible slots per module.

Personally I think the lower risk, quicker fix, is to implement a fix
for 64-bit kernels that uses ldd in format 3 for all offsets > 15
bytes, and thus allow you to set MAX_GOTS to 4095.

Note: ldd format 3 can't be used to load immediate values between 15
and -16 bytes.

Cheers,
Carlos.
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From: Meelis Roos <mroos@ut.ee>
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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> > Are you sure? There are basic explanations about the info we need. For instance:
> > 
> > "- The r02 register is the "return pointer" - it indicates the calling function
> > - The IAOQ contents specify the address of the instruction where the
> > fault occured."
> > 
> > Of course they are undecoded, that's why you need to be able to
> > objdump the kernel.
> 
> I tried to download the kernel package, but it's gone from the debian
> servers.  So, you will have to run objdump yourself.  Just do
> 
> hppa64-linux-gnu-objdump vmlinux-2.6.29-2-parisc64-smp | less

Did this - managed to boot via etch netinst+chroot. The address ranges 
do not match (as suggested by an earleir post?) - they start with
0000000040100000. r02 shows 000000000c1b5c78 and I can not find anything 
sensible ending with 1b5c7XX. The only match is in the middle of 
filemap_fault:

    401b5c64:   08 19 02 49     copy r25,r9
    401b5c68:   53 5c 00 50     ldd 28(r26),ret0
    401b5c6c:   c5 fc 43 e8     bb,< ret0,f,401b5e68 <filemap_fault+0x278>
    401b5c70:   34 0b 00 00     ldi 0,r11
    401b5c74:   34 0c 00 00     ldi 0,r12
    401b5c78:   2b 60 00 00     addil L%0,dp,r1
    401b5c7c:   08 01 02 4d     copy r1,r13
    401b5c80:   2b 63 30 00     addil L%7800,dp,r1
    401b5c84:   37 c7 3f a1     ldo -30(sp),r7
    401b5c88:   08 01 02 48     copy r1,r8

Also, there is no mention of IAOQ, IIR, IOR in HPMC - are they there but 
with different names?

The disassmebly from the image is at
http://muuseum.at.mt.ut.ee/~mroos/objdump-2.6.19-2-parisc64-smp if 
sombeody can help me find my way through it. The image itself is at
http://muuseum.at.mt.ut.ee/~mroos/vmlinux-2.6.29-2-parisc64-smp

I also installed Debian's current 2.6.30-1-parisc64 kernel and it 
behaves the same - HPMC after PCI messages from tulip.

For some strange reason, 2.6.18-6-parisc64 (as fully working netbooted 
etch's uname tells) does not boot from disk either - it panics in a 
differnet place so I did not investigate it further. Maybe probles with 
my initramfs.

-- 
Meelis Roos (mroos@ut.ee)      http://www.cs.ut.ee/~mroos/
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global Offset
	Table
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Fri, Jul 31, 2009 at 06:00:48PM -0400, Carlos O'Donell wrote:
> On Fri, Jul 31, 2009 at 5:26 PM, John David
> Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> > I don't have more details... =A0The idea is as Carlos outlined. =A0=
There's
> > code in the binutils elf32-hppa.c and elf64-hppa.c files to impleme=
nt
> > the above for dynamic libraries. =A0That's what made me think of it=
=2E
>=20
> Binutils is not involved in the kernel module loader, instead
> arch/parisc/kernel/module.c (get_fdesc) chooses where the gp will
> point to.
>=20
> If you set gp to the middle of the GOT table, *and* implement
> long/short ldd access on 64-bit, then you would get a total of 8191
> possible slots per module.
>=20
> Personally I think the lower risk, quicker fix, is to implement a fix
> for 64-bit kernels that uses ldd in format 3 for all offsets > 15
> bytes, and thus allow you to set MAX_GOTS to 4095.
>=20
> Note: ldd format 3 can't be used to load immediate values between 15
> and -16 bytes.
>=20

Is it as simple as:

diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index ef5caf2..0502fab 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -82,13 +82,6 @@
 		return -ENOEXEC;			\
 	}
=20
-/* Maximum number of GOT entries. We use a long displacement ldd from
- * the bottom of the table, which has a maximum signed displacement of
- * 0x3fff; however, since we're only going forward, this becomes
- * 0x1fff, and thus, since each GOT entry is 8 bytes long we can have
- * at most 1023 entries */
-#define MAX_GOTS	1023
-
 /* three functions to determine where in the module core
  * or init pieces the location is */
 static inline int in_init(struct module *me, void *loc)
@@ -126,6 +119,14 @@ struct stub_entry {
 };
 #endif
=20
+/* Maximum number of GOT entries. We use a long displacement ldd from
+ * the bottom of the table, which has 16-bit signed displacement from
+ * %dp. Because we only use the forward direction, we're limited to
+ * 15-bits - 1, and because each GOT entry is 8-bytes wide, we're limi=
ted
+ * to 4095 entries.
+ */
+#define MAX_GOTS	(((1 << 15) - 1) / sizeof(struct got_entry))
+
 /* Field selection types defined by hppa */
 #define rnd(x)			(((x)+0x1000)&~0x1fff)
 /* fsel: full 32 bits */
@@ -151,6 +152,15 @@ static inline int reassemble_14(int as14)
 		((as14 & 0x2000) >> 13));
 }
=20
+/* Unusual 16-bit encoding, for wide mode only.  */
+static inline int reassemble_16a(int as16)
+{
+	int s, t;
+	t =3D (as16 << 1) & 0xffff;
+	s =3D (as16 & 0x8000);
+	return (t ^ s ^ (s >> 1)) | (s >> 15);
+}
+
 static inline int reassemble_17(int as17)
 {
 	return (((as17 & 0x10000) >> 16) |
@@ -460,12 +470,16 @@ static Elf_Addr get_stub(struct module *me, unsig=
ned long value, long addend,
  */
 	switch (stub_type) {
 	case ELF_STUB_GOT:
+		unsigned int d =3D get_got(me, value, addend) & 0x7fff;
+
 		stub->insns[0] =3D 0x537b0000;	/* ldd 0(%dp),%dp	*/
 		stub->insns[1] =3D 0x53610020;	/* ldd 10(%dp),%r1	*/
 		stub->insns[2] =3D 0xe820d000;	/* bve (%r1)		*/
 		stub->insns[3] =3D 0x537b0030;	/* ldd 18(%dp),%dp	*/
=20
-		stub->insns[0] |=3D reassemble_14(get_got(me, value, addend) & 0x3ff=
f);
+		if (d > 15)
+			stub->insns[0] |=3D reassemble_16a(d);
+
 		break;
 	case ELF_STUB_MILLI:
 		stub->insns[0] =3D 0x20200000;	/* ldil 0,%r1		*/

I don't think we need to worry about the initial 15-bytes displacement,
since they're all within the first got_entry? (The resulting assembly
looks alright from a 64-bit toolchain:

kyle@shortfin ~ $ cat foo.S
	.text
a:
	ldd 32760(%r27),%r27
	break	0,0

0000000000000000 <a>:
   0:	53 7b ff f0 	ldd 7ff8(dp),dp

int main(void) {
        unsigned int opcode =3D 0x537b0000;
        opcode |=3D re_assemble_16(32760);
        printf("0x%x\n", opcode);
        return 0;
}

kyle@shortfin ~ $ ./foo
0x537bfff0

Looks pretty happy?
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global Offset	Table
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To: Kyle McMartin <kyle@mcmartin.ca>
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On 08/01/2009 01:38 AM, Kyle McMartin wrote:
> On Fri, Jul 31, 2009 at 06:00:48PM -0400, Carlos O'Donell wrote:
>> On Fri, Jul 31, 2009 at 5:26 PM, John David
>> Anglin<dave@hiauly1.hia.nrc.ca>  wrote:
>>> I don't have more details...  The idea is as Carlos outlined.  There's
>>> code in the binutils elf32-hppa.c and elf64-hppa.c files to implement
>>> the above for dynamic libraries.  That's what made me think of it.
>> Binutils is not involved in the kernel module loader, instead
>> arch/parisc/kernel/module.c (get_fdesc) chooses where the gp will
>> point to.
>>
>> If you set gp to the middle of the GOT table, *and* implement
>> long/short ldd access on 64-bit, then you would get a total of 8191
>> possible slots per module.
>>
>> Personally I think the lower risk, quicker fix, is to implement a fix
>> for 64-bit kernels that uses ldd in format 3 for all offsets>  15
>> bytes, and thus allow you to set MAX_GOTS to 4095.
>>
>> Note: ldd format 3 can't be used to load immediate values between 15
>> and -16 bytes.
>>
>
> Is it as simple as:
>
> diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
> index ef5caf2..0502fab 100644
> --- a/arch/parisc/kernel/module.c
> +++ b/arch/parisc/kernel/module.c
> @@ -82,13 +82,6 @@
>   		return -ENOEXEC;			\
>   	}
>
> -/* Maximum number of GOT entries. We use a long displacement ldd from
> - * the bottom of the table, which has a maximum signed displacement of
> - * 0x3fff; however, since we're only going forward, this becomes
> - * 0x1fff, and thus, since each GOT entry is 8 bytes long we can have
> - * at most 1023 entries */
> -#define MAX_GOTS	1023
> -
>   /* three functions to determine where in the module core
>    * or init pieces the location is */
>   static inline int in_init(struct module *me, void *loc)
> @@ -126,6 +119,14 @@ struct stub_entry {
>   };
>   #endif
>
> +/* Maximum number of GOT entries. We use a long displacement ldd from
> + * the bottom of the table, which has 16-bit signed displacement from
> + * %dp. Because we only use the forward direction, we're limited to
> + * 15-bits - 1, and because each GOT entry is 8-bytes wide, we're limited
> + * to 4095 entries.
> + */
> +#define MAX_GOTS	(((1<<  15) - 1) / sizeof(struct got_entry))
> +
>   /* Field selection types defined by hppa */
>   #define rnd(x)			(((x)+0x1000)&~0x1fff)
>   /* fsel: full 32 bits */
> @@ -151,6 +152,15 @@ static inline int reassemble_14(int as14)
>   		((as14&  0x2000)>>  13));
>   }
>
> +/* Unusual 16-bit encoding, for wide mode only.  */
> +static inline int reassemble_16a(int as16)
> +{
> +	int s, t;
> +	t = (as16<<  1)&  0xffff;
> +	s = (as16&  0x8000);
> +	return (t ^ s ^ (s>>  1)) | (s>>  15);
> +}
> +
>   static inline int reassemble_17(int as17)
>   {
>   	return (((as17&  0x10000)>>  16) |
> @@ -460,12 +470,16 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
>    */
>   	switch (stub_type) {
>   	case ELF_STUB_GOT:
> +		unsigned int d = get_got(me, value, addend)&  0x7fff;
> +
>   		stub->insns[0] = 0x537b0000;	/* ldd 0(%dp),%dp	*/
>   		stub->insns[1] = 0x53610020;	/* ldd 10(%dp),%r1	*/
>   		stub->insns[2] = 0xe820d000;	/* bve (%r1)		*/
>   		stub->insns[3] = 0x537b0030;	/* ldd 18(%dp),%dp	*/
>
> -		stub->insns[0] |= reassemble_14(get_got(me, value, addend)&  0x3fff);
> +		if (d>  15)
> +			stub->insns[0] |= reassemble_16a(d);
> +
>   		break;
>   	case ELF_STUB_MILLI:
>   		stub->insns[0] = 0x20200000;	/* ldil 0,%r1		*/
>
> I don't think we need to worry about the initial 15-bytes displacement,
> since they're all within the first got_entry? (The resulting assembly
> looks alright from a 64-bit toolchain:
>
> kyle@shortfin ~ $ cat foo.S
> 	.text
> a:
> 	ldd 32760(%r27),%r27
> 	break	0,0
>
> 0000000000000000<a>:
>     0:	53 7b ff f0 	ldd 7ff8(dp),dp
>
> int main(void) {
>          unsigned int opcode = 0x537b0000;
>          opcode |= re_assemble_16(32760);
>          printf("0x%x\n", opcode);
>          return 0;
> }
>
> kyle@shortfin ~ $ ./foo
> 0x537bfff0
>
> Looks pretty happy?
>

Kyle, you beat me.
Attached is my patch ....

Tested and works.

root@c3000:~# uname -a
Linux c3000 2.6.31-rc4-64bit #42 SMP Sat Aug 1 01:37:29 CEST 2009 parisc64 GNU/Linux
root@c3000:~# lsmod
Module                  Size  Used by
ipv6                  493320  70
reiserfs              461624  0
nfs                   300704  0
lockd                 144456  1 nfs
nfs_acl                 5592  1 nfs
sunrpc                382312  3 nfs,lockd,nfs_acl
msdos                  15032  0
fat                    91248  1 msdos

Helge

--------------090002020306030204060209
Content-Type: text/x-patch;
 name="got.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="got.patch"

parisc: module.c - fix GOT table overflow with large kernel modules on 64 bit kernels

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index ef5caf2..d280219 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -86,8 +86,12 @@
  * the bottom of the table, which has a maximum signed displacement of
  * 0x3fff; however, since we're only going forward, this becomes
  * 0x1fff, and thus, since each GOT entry is 8 bytes long we can have
- * at most 1023 entries */
-#define MAX_GOTS	1023
+ * at most 1023 entries.
+ * To overcome this 14bit displacement with some kernel modules, we'll
+ * use instead the unusal 16bit displacement method (see reassemble_16a)
+ * which gives us a maximum positive displacement of 0x7fff, and as such 
+ * allows us to allocate up to 4095 GOT entries. */
+#define MAX_GOTS	4095
 
 /* three functions to determine where in the module core
  * or init pieces the location is */
@@ -151,6 +155,17 @@ static inline int reassemble_14(int as14)
 		((as14 & 0x2000) >> 13));
 }
 
+static inline int reassemble_16a(int as16)
+{
+	int s, t;
+
+	/* Unusual 16-bit encoding, for wide mode only.  */
+	t = (as16 << 1) & 0xffff;
+	s = (as16 & 0x8000);
+	return (t ^ s ^ (s >> 1)) | (s >> 15);
+}
+
+
 static inline int reassemble_17(int as17)
 {
 	return (((as17 & 0x10000) >> 16) |
@@ -407,6 +422,7 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
 	enum elf_stub_type stub_type, Elf_Addr loc0, unsigned int targetsec)
 {
 	struct stub_entry *stub;
+	int d;
 
 	/* initialize stub_offset to point in front of the section */
 	if (!me->arch.section[targetsec].stub_offset) {
@@ -460,12 +476,17 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
  */
 	switch (stub_type) {
 	case ELF_STUB_GOT:
-		stub->insns[0] = 0x537b0000;	/* ldd 0(%dp),%dp	*/
+		stub->insns[0] = 0x537b0000;    /* ldd 0(%dp),%dp	*/
 		stub->insns[1] = 0x53610020;	/* ldd 10(%dp),%r1	*/
 		stub->insns[2] = 0xe820d000;	/* bve (%r1)		*/
 		stub->insns[3] = 0x537b0030;	/* ldd 18(%dp),%dp	*/
 
-		stub->insns[0] |= reassemble_14(get_got(me, value, addend) & 0x3fff);
+		d = get_got(me, value, addend);
+		if (d <= 15)
+			stub->insns[0] |= reassemble_14(d);
+		else
+			stub->insns[0] |= reassemble_16a(d);
+
 		break;
 	case ELF_STUB_MILLI:
 		stub->insns[0] = 0x20200000;	/* ldil 0,%r1		*/

--------------090002020306030204060209--
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>  	case ELF_STUB_GOT:
> -		stub->insns[0] = 0x537b0000;	/* ldd 0(%dp),%dp	*/
> +		stub->insns[0] = 0x537b0000;    /* ldd 0(%dp),%dp	*/
>  		stub->insns[1] = 0x53610020;	/* ldd 10(%dp),%r1	*/
>  		stub->insns[2] = 0xe820d000;	/* bve (%r1)		*/
>  		stub->insns[3] = 0x537b0030;	/* ldd 18(%dp),%dp	*/
>  
> -		stub->insns[0] |= reassemble_14(get_got(me, value, addend) & 0x3fff);
> +		d = get_got(me, value, addend);
> +		if (d <= 15)
> +			stub->insns[0] |= reassemble_14(d);

reassemble_14 is wrong for ldd format 3.  Need format 5 and im5 insertion.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> >  	case ELF_STUB_GOT:
> > -		stub->insns[0] = 0x537b0000;	/* ldd 0(%dp),%dp	*/
> > +		stub->insns[0] = 0x537b0000;    /* ldd 0(%dp),%dp	*/
> >  		stub->insns[1] = 0x53610020;	/* ldd 10(%dp),%r1	*/
> >  		stub->insns[2] = 0xe820d000;	/* bve (%r1)		*/
> >  		stub->insns[3] = 0x537b0030;	/* ldd 18(%dp),%dp	*/
> >  
> > -		stub->insns[0] |= reassemble_14(get_got(me, value, addend) & 0x3fff);
> > +		d = get_got(me, value, addend);
> > +		if (d <= 15)
> > +			stub->insns[0] |= reassemble_14(d);
> 
> reassemble_14 is wrong for ldd format 3.  Need format 5 and im5 insertion.

The format 5 version of ldd 0(%dp),%dp is 0x0f6010db.

Dave
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On Fri, Jul 31, 2009 at 7:38 PM, Kyle McMartin<kyle@mcmartin.ca> wrote:
> Is it as simple as:
>
> diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.=
c
> index ef5caf2..0502fab 100644
> --- a/arch/parisc/kernel/module.c
> +++ b/arch/parisc/kernel/module.c
> @@ -82,13 +82,6 @@
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0return -ENOEXEC; =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0\
> =A0 =A0 =A0 =A0}
>
> -/* Maximum number of GOT entries. We use a long displacement ldd fro=
m
> - * the bottom of the table, which has a maximum signed displacement =
of
> - * 0x3fff; however, since we're only going forward, this becomes
> - * 0x1fff, and thus, since each GOT entry is 8 bytes long we can hav=
e
> - * at most 1023 entries */
> -#define MAX_GOTS =A0 =A0 =A0 1023
> -
> =A0/* three functions to determine where in the module core
> =A0* or init pieces the location is */
> =A0static inline int in_init(struct module *me, void *loc)
> @@ -126,6 +119,14 @@ struct stub_entry {
> =A0};
> =A0#endif
>
> +/* Maximum number of GOT entries. We use a long displacement ldd fro=
m
> + * the bottom of the table, which has 16-bit signed displacement fro=
m
> + * %dp. Because we only use the forward direction, we're limited to
> + * 15-bits - 1, and because each GOT entry is 8-bytes wide, we're li=
mited
> + * to 4095 entries.
> + */
> +#define MAX_GOTS =A0 =A0 =A0 (((1 << 15) - 1) / sizeof(struct got_en=
try))
> +

OK

> =A0/* Field selection types defined by hppa */
> =A0#define rnd(x) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 (((x)+0x1000)&~0x1f=
ff)
> =A0/* fsel: full 32 bits */
> @@ -151,6 +152,15 @@ static inline int reassemble_14(int as14)
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0((as14 & 0x2000) >> 13));
> =A0}
>
> +/* Unusual 16-bit encoding, for wide mode only. =A0*/
> +static inline int reassemble_16a(int as16)
> +{
> + =A0 =A0 =A0 int s, t;
> + =A0 =A0 =A0 t =3D (as16 << 1) & 0xffff;
> + =A0 =A0 =A0 s =3D (as16 & 0x8000);
> + =A0 =A0 =A0 return (t ^ s ^ (s >> 1)) | (s >> 15);
> +}
> +

OK

> =A0static inline int reassemble_17(int as17)
> =A0{
> =A0 =A0 =A0 =A0return (((as17 & 0x10000) >> 16) |
> @@ -460,12 +470,16 @@ static Elf_Addr get_stub(struct module *me, uns=
igned long value, long addend,
> =A0*/
> =A0 =A0 =A0 =A0switch (stub_type) {
> =A0 =A0 =A0 =A0case ELF_STUB_GOT:
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 unsigned int d =3D get_got(me, value, a=
ddend) & 0x7fff;
> +
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0stub->insns[0] =3D 0x537b0000; =A0 =A0=
/* ldd 0(%dp),%dp =A0 =A0 =A0 */
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0stub->insns[1] =3D 0x53610020; =A0 =A0=
/* ldd 10(%dp),%r1 =A0 =A0 =A0*/
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0stub->insns[2] =3D 0xe820d000; =A0 =A0=
/* bve (%r1) =A0 =A0 =A0 =A0 =A0 =A0*/
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0stub->insns[3] =3D 0x537b0030; =A0 =A0=
/* ldd 18(%dp),%dp =A0 =A0 =A0*/
>
> - =A0 =A0 =A0 =A0 =A0 =A0 =A0 stub->insns[0] |=3D reassemble_14(get_g=
ot(me, value, addend) & 0x3fff);
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 if (d > 15)
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 stub->insns[0] |=3D rea=
ssemble_16a(d);
> +

You need to rewrite stub->insn[0[, the long format 3 ldd is a
different opcode, see the PA 2.0 manual, it will no longer be
0x537b0000.

You also still need a <=3D 15 byte case which uses the old short format
5 ldd with a 14-bit immediate.

> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0break;
> =A0 =A0 =A0 =A0case ELF_STUB_MILLI:
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0stub->insns[0] =3D 0x20200000; =A0 =A0=
/* ldil 0,%r1 =A0 =A0 =A0 =A0 =A0 */
>
> I don't think we need to worry about the initial 15-bytes displacemen=
t,
> since they're all within the first got_entry? (The resulting assembly
> looks alright from a 64-bit toolchain:

No, we still have to worry about the initial 15-bytes. Within the
first 15-bytes you have one GOT entry (%dp + 0) and thus you need to
add the case for the short format 3 ldd.

Thanks for hacking this up!

Cheers,
Carlos.
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global Offset Table
Date: Fri, 31 Jul 2009 21:51:17 -0400
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On Thu, Jul 30, 2009 at 8:37 PM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
>> =A0 =A0 =A0 case ELF_STUB_GOT:
>> - =A0 =A0 =A0 =A0 =A0 =A0 stub->insns[0] =3D 0x537b0000; =A0 =A0/* l=
dd 0(%dp),%dp =A0 =A0 =A0 */
>> + =A0 =A0 =A0 =A0 =A0 =A0 stub->insns[0] =3D 0x537b0000; =A0 =A0/* l=
dd 0(%dp),%dp =A0 =A0 =A0 */
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 stub->insns[1] =3D 0x53610020; =A0 =A0/*=
 ldd 10(%dp),%r1 =A0 =A0 =A0*/
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 stub->insns[2] =3D 0xe820d000; =A0 =A0/*=
 bve (%r1) =A0 =A0 =A0 =A0 =A0 =A0*/
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 stub->insns[3] =3D 0x537b0030; =A0 =A0/*=
 ldd 18(%dp),%dp =A0 =A0 =A0*/
>>
>> - =A0 =A0 =A0 =A0 =A0 =A0 stub->insns[0] |=3D reassemble_14(get_got(=
me, value, addend) & 0x3fff);
>> + =A0 =A0 =A0 =A0 =A0 =A0 d =3D get_got(me, value, addend);
>> + =A0 =A0 =A0 =A0 =A0 =A0 if (d <=3D 15)
>> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 stub->insns[0] |=3D reasse=
mble_14(d);
>
> reassemble_14 is wrong for ldd format 3. =A0Need format 5 and im5 ins=
ertion.

This is using reassemble_14 for ldd format 5, which is correct.

Cheers,
Carlos.
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Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global =?utf-8?q?Offset=09Table?=
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tags 539378 patch
thanks

On Saturday 01 August 2009, Helge Deller wrote:
> Kyle, you beat me.
> Attached is my patch ....
>
> Tested and works.

Works for me too. Cool.

Your patch contained a few whitespace errors and, because of that, one 
unnecessary change. Attached a version with those cleaned up.

Thanks,
FJP


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	filename="got.patch"

parisc: module.c - fix GOT table overflow with large kernel modules on 64 bit kernels

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index ef5caf2..d291bf9 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -86,8 +86,12 @@
  * the bottom of the table, which has a maximum signed displacement of
  * 0x3fff; however, since we're only going forward, this becomes
  * 0x1fff, and thus, since each GOT entry is 8 bytes long we can have
- * at most 1023 entries */
-#define MAX_GOTS	1023
+ * at most 1023 entries.
+ * To overcome this 14bit displacement with some kernel modules, we'll
+ * use instead the unusal 16bit displacement method (see reassemble_16a)
+ * which gives us a maximum positive displacement of 0x7fff, and as such
+ * allows us to allocate up to 4095 GOT entries. */
+#define MAX_GOTS	4095
 
 /* three functions to determine where in the module core
  * or init pieces the location is */
@@ -151,6 +155,16 @@ static inline int reassemble_14(int as14)
 		((as14 & 0x2000) >> 13));
 }
 
+static inline int reassemble_16a(int as16)
+{
+	int s, t;
+
+	/* Unusual 16-bit encoding, for wide mode only. */
+	t = (as16 << 1) & 0xffff;
+	s = (as16 & 0x8000);
+	return (t ^ s ^ (s >> 1)) | (s >> 15);
+}
+
 static inline int reassemble_17(int as17)
 {
 	return (((as17 & 0x10000) >> 16) |
@@ -407,6 +421,7 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
 	enum elf_stub_type stub_type, Elf_Addr loc0, unsigned int targetsec)
 {
 	struct stub_entry *stub;
+	int d;
 
 	/* initialize stub_offset to point in front of the section */
 	if (!me->arch.section[targetsec].stub_offset) {
@@ -465,7 +480,12 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
 		stub->insns[2] = 0xe820d000;	/* bve (%r1)		*/
 		stub->insns[3] = 0x537b0030;	/* ldd 18(%dp),%dp	*/
 
-		stub->insns[0] |= reassemble_14(get_got(me, value, addend) & 0x3fff);
+		d = get_got(me, value, addend);
+		if (d <= 15)
+			stub->insns[0] |= reassemble_14(d);
+		else
+			stub->insns[0] |= reassemble_16a(d);
+
 		break;
 	case ELF_STUB_MILLI:
 		stub->insns[0] = 0x20200000;	/* ldil 0,%r1		*/

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Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global Offset
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On Fri, 31 Jul 2009, Carlos O'Donell wrote:

> >> + =A0 =A0 =A0 =A0 =A0 =A0 if (d <=3D 15)
> >> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 stub->insns[0] |=3D reas=
semble_14(d);
> >
> > reassemble_14 is wrong for ldd format 3. =A0Need format 5 and im5 i=
nsertion.
>=20
> This is using reassemble_14 for ldd format 5, which is correct.

Huh?  Format 5 has a five bit immediate and it's not compatible with
reassemble_14.  The value is actually being stuffed into a format 3 ldd
pattern (i.e., format 3 is being used for displacements 0 and 8).

If format 3 is going to be used for short displacements, then use
reassemble_16a as it is the inverse to the assemble_16a operation
described in the arch.  Using reassemble_14 with ldd is confusing.

As you pointed out, the arch shows using format 5 for short displacemen=
ts.
It's unclear whether there is a performance or functional difference as=
ide
from the behavior of space selection.  There may be no requirement for
hardware to implement short displacements using format 3.

Dave
--=20
J. David Anglin                                  dave.anglin@nrc-cnrc.g=
c.ca
National Research Council of Canada              (613) 990-0752 (FAX: 9=
52-6602)
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From - Thu Nov 08 21:04:40 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global Offset Table
Date: Sat, 1 Aug 2009 15:07:13 -0400 (EDT)
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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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> >  	case ELF_STUB_GOT:
> > -		stub->insns[0] = 0x537b0000;	/* ldd 0(%dp),%dp	*/
> > +		stub->insns[0] = 0x537b0000;    /* ldd 0(%dp),%dp	*/
> >  		stub->insns[1] = 0x53610020;	/* ldd 10(%dp),%r1	*/
> >  		stub->insns[2] = 0xe820d000;	/* bve (%r1)		*/
> >  		stub->insns[3] = 0x537b0030;	/* ldd 18(%dp),%dp	*/
> >  
> > -		stub->insns[0] |= reassemble_14(get_got(me, value, addend) & 0x3fff);
> > +		d = get_got(me, value, addend);
> > +		if (d <= 15)
> > +			stub->insns[0] |= reassemble_14(d);
> 
> reassemble_14 is wrong for ldd format 3.  Need format 5 and im5 insertion.

Since I complained about not using format 5 for small displacements,
here's an updated patch for review.  Seems to work:

dave@mx3210:/usr/src/D$ lsmod
Module                  Size  Used by
dm_snapshot            45680  0 
dm_mirror              27480  0 
dm_region_hash         17408  1 dm_mirror
dm_log                 18968  2 dm_mirror,dm_region_hash
dm_mod                111200  3 dm_snapshot,dm_mirror,dm_log
ext2                   99648  2 
sd_mod                 63792  4 
crc_t10dif              2368  1 sd_mod
tg3                   196428  0 
sym53c8xx             127568  3 
libphy                 39280  1 tg3
scsi_transport_spi     43528  1 sym53c8xx
scsi_mod              261104  3 sd_mod,sym53c8xx,scsi_transport_spi

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>

diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index ecd1c50..88989cb 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -86,8 +86,12 @@
  * the bottom of the table, which has a maximum signed displacement of
  * 0x3fff; however, since we're only going forward, this becomes
  * 0x1fff, and thus, since each GOT entry is 8 bytes long we can have
- * at most 1023 entries */
-#define MAX_GOTS	1023
+ * at most 1023 entries.
+ * To overcome this 14bit displacement with some kernel modules, we'll
+ * use instead the unusal 16bit displacement method (see reassemble_16a)
+ * which gives us a maximum positive displacement of 0x7fff, and as such 
+ * allows us to allocate up to 4095 GOT entries. */
+#define MAX_GOTS	4095
 
 /* three functions to determine where in the module core
  * or init pieces the location is */
@@ -145,12 +149,40 @@ struct stub_entry {
 /* The reassemble_* functions prepare an immediate value for
    insertion into an opcode. pa-risc uses all sorts of weird bitfields
    in the instruction to hold the value.  */
+static inline int sign_unext (int x, int len)
+{
+	int len_ones;
+
+	len_ones = (1 << len) - 1;
+	return x & len_ones;
+}
+
+static inline int low_sign_unext(int x, int len)
+{
+	int sign, temp;
+
+	sign = (x >> (len-1)) & 1;
+	temp = sign_unext (x, len-1);
+	return (temp << 1) | sign;
+}
+
 static inline int reassemble_14(int as14)
 {
 	return (((as14 & 0x1fff) << 1) |
 		((as14 & 0x2000) >> 13));
 }
 
+static inline int reassemble_16a(int as16)
+{
+	int s, t;
+
+	/* Unusual 16-bit encoding, for wide mode only.  */
+	t = (as16 << 1) & 0xffff;
+	s = (as16 & 0x8000);
+	return (t ^ s ^ (s >> 1)) | (s >> 15);
+}
+
+
 static inline int reassemble_17(int as17)
 {
 	return (((as17 & 0x10000) >> 16) |
@@ -409,6 +441,7 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
 	enum elf_stub_type stub_type, Elf_Addr loc0, unsigned int targetsec)
 {
 	struct stub_entry *stub;
+	int d;
 
 	/* initialize stub_offset to point in front of the section */
 	if (!me->arch.section[targetsec].stub_offset) {
@@ -462,12 +495,19 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
  */
 	switch (stub_type) {
 	case ELF_STUB_GOT:
-		stub->insns[0] = 0x537b0000;	/* ldd 0(%dp),%dp	*/
+		d = get_got(me, value, addend);
+		if (d <= 15) {
+			/* Format 5 */
+			stub->insns[0] = 0x0f6010db; /* ldd 0(%dp),%dp	*/
+			stub->insns[0] |= low_sign_unext(d, 5) << 16;
+		} else {
+			/* Format 3 */
+			stub->insns[0] = 0x537b0000; /* ldd 0(%dp),%dp	*/
+			stub->insns[0] |= reassemble_16a(d);
+		}
 		stub->insns[1] = 0x53610020;	/* ldd 10(%dp),%r1	*/
 		stub->insns[2] = 0xe820d000;	/* bve (%r1)		*/
 		stub->insns[3] = 0x537b0030;	/* ldd 18(%dp),%dp	*/

From - Thu Nov 08 21:04:41 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global Offset Table
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On Sat, Aug 1, 2009 at 3:07 PM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
>

Frans,

I suggest you use Dave's patch please, it is IMO the most correct patch.

Helge, Kyle, thanks also for the initial patches!

Cheers,
Carlos.
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From - Thu Nov 08 21:04:41 2018
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> Did this - managed to boot via etch netinst+chroot. The address ranges 
> do not match (as suggested by an earleir post?) - they start with
> 0000000040100000. r02 shows 000000000c1b5c78 and I can not find anything 
> sensible ending with 1b5c7XX. The only match is in the middle of 
> filemap_fault:
> 
>     401b5c64:   08 19 02 49     copy r25,r9

The fault is at 0x402e70d0.  Register r26 contains 0 in the dump.

00000000402e7098 <ioread32>:
    402e7098:   0f c2 12 c1     std rp,-10(sp)
    402e709c:   9f 40 60 58     cmpb,*<= r0,r26,402e70d0 <ioread32+0x38>
    402e70a0:   73 c4 01 08     std,ma r4,80(sp)
    402e70a4:   db 5f 00 7d     extrd,u r26,3,3,r31
    402e70a8:   2b 63 20 00     addil L%7000,dp,r1
    402e70ac:   50 3c 0b 50     ldd 5a8(r1),ret0
    402e70b0:   0f 9f 20 dc     ldd,s r31(ret0),ret0
    402e70b4:   37 dd 3f a1     ldo -30(sp),ret1
    402e70b8:   53 9c 00 30     ldd 18(ret0),ret0
    402e70bc:   53 82 00 20     ldd 10(ret0),rp
    402e70c0:   e8 40 f0 00     bve,l (rp),rp
    402e70c4:   53 9b 00 30     ldd 18(ret0),dp
    402e70c8:   e8 00 00 30     b,l 402e70e8 <ioread32+0x50>,r0
    402e70cc:   53 c2 3e e1     ldd -90(sp),rp
    402e70d0:   0f 40 10 9c     ldw 0(r26),ret0
    402e70d4:   d3 9c 09 ff     shrpw ret0,ret0,16,r31

Since register r2 doesn't contain a normal address, it not clear
where ioread32 was called from.
> Also, there is no mention of IAOQ, IIR, IOR in HPMC - are they there but 
> with different names?

IAOQ is the HPMC dump (back entry).  It's 0x402e70d4.
IIR is control register 19 (CR 19).
IOR is control register 21 (CR 21).

> The disassmebly from the image is at
> http://muuseum.at.mt.ut.ee/~mroos/objdump-2.6.19-2-parisc64-smp if 
> sombeody can help me find my way through it. The image itself is at
> http://muuseum.at.mt.ut.ee/~mroos/vmlinux-2.6.29-2-parisc64-smp

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: Bug#539378: [hppa]: fails to load nfs module: Global Offset Table
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On Saturday 01 August 2009, Carlos O'Donell wrote:
> I suggest you use Dave's patch please, it is IMO the most correct
> patch.

Right. I think the original patch is probably responsible for endless
errors on shutdown/reboot:

Bad Address (null pointer deref?): Code=15 regs=00000000bea7cf70 (Addr=c00007ffbea7c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Not tainted
r00-03  000000ff0804ff0e 00000000405ead40 000000006fc00000 00000000bea7ca18
r04-07  0000000037de0000 ffffffffffe00008 00000000bea7ca18 00000000405ea540
r08-11  000000000fc212c1 000000006bc23fd9 000000000000000f 00000000faf59048
r12-15  00000000be784b28 0000000000000025 00000000faf5932d 0000000000000000
r16-19  00000000bea7bfa0 0000000000000014 000000004074b134 00000000bea7cda0
r20-23  00000000ffffe000 000000004011d2b4 0000000040479004 0000000000000010
r24-27  0000000000000000 000000004011d1e0 000000004011d838 00000000405dcd40
r28-31  ffffffffbea7cd90 0000000000000350 00000000bea7cf70 ffffffffbea7cda0
sr00-03  000000000607b000 0000000000000000 0000000000000000 000000000607b000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040127a10 0000000040127a14
 IIR: 0f8010dc    ISR: 000000003ffff800  IOR: c00007ffbea7cd90
 CPU:        1   CR30: 00000000bea60000 CR31: 0000000011111111
 ORIG_R28: 0000000000000000
 IAOQ[0]: unwind_once+0x370/0x3d0
 IAOQ[1]: unwind_once+0x374/0x3d0
 RP(r2): 0x6fc00000


John's version works too for me and the system now shuts down cleanly.

Cheers,
FJP

P.S. If anybody ever wants access to my box, just ask:
- model: 9000/785/J5600
- cpu: 2 x PA8600 (PCX-W+) at 552.000000 MHz
- memory: 2048 MB
- 3 x 9.1 GB SCSI harddisks
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Check whether index is within bounds before testing the element.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
This also removes the likely, should it be kept?

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index f9f9a5f..13a64bc 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -370,7 +370,7 @@ pdcspath_layer_read(struct pdcspath_entry *entry, char *buf)
 	if (!i)	/* entry is not ready */
 		return -ENODATA;
 	
-	for (i = 0; devpath->layers[i] && (likely(i < 6)); i++)
+	for (i = 0; i < 6 && devpath->layers[i]; i++)
 		out += sprintf(out, "%u ", devpath->layers[i]);
 
 	out += sprintf(out, "\n");
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On Sun, Aug 2, 2009 at 10:02 AM, Roel Kluin<roel.kluin@gmail.com> wrote=
:
> Check whether index is within bounds before testing the element.

The change is correct but:
- There are other places in the code with that construct. Even though
they wouldn't trigger an overflow, why not fixing them too?
- Keep the likely: we are more likely to run out of data in the layers
than to exhaust the counter (which is why no overflow was ever
triggered, I believe ;-)

HTH

T-Bone

> diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.=
c
> index f9f9a5f..13a64bc 100644
> --- a/drivers/parisc/pdc_stable.c
> +++ b/drivers/parisc/pdc_stable.c
> @@ -370,7 +370,7 @@ pdcspath_layer_read(struct pdcspath_entry *entry,=
 char *buf)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0if (!i) /* entry is not ready */
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0return -ENODAT=
A;
>
> - =C2=A0 =C2=A0 =C2=A0 for (i =3D 0; devpath->layers[i] && (likely(i =
< 6)); i++)
> + =C2=A0 =C2=A0 =C2=A0 for (i =3D 0; i < 6 && devpath->layers[i]; i++=
)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0out +=3D sprin=
tf(out, "%u ", devpath->layers[i]);
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0out +=3D sprintf(out, "\n");
> --
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>



--=20
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On Sun, Aug 02, 2009 at 12:06:59PM +0200, Thibaut VARENE wrote:
> On Sun, Aug 2, 2009 at 10:02 AM, Roel Kluin<roel.kluin@gmail.com> wrote:
> > Check whether index is within bounds before testing the element.
> 
> The change is correct but:
> - There are other places in the code with that construct. Even though
> they wouldn't trigger an overflow, why not fixing them too?
> - Keep the likely: we are more likely to run out of data in the layers
> than to exhaust the counter (which is why no overflow was ever
> triggered, I believe ;-)

No, lose the likely.  It's a for-loop; gcc will do the right thing.

(If you think I'm wrong, convince me by showing the disassembly of the
compiled code with and without the likely).

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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On Sun, Aug 2, 2009 at 12:16 PM, Matthew Wilcox<matthew@wil.cx> wrote:
> On Sun, Aug 02, 2009 at 12:06:59PM +0200, Thibaut VARENE wrote:
>> On Sun, Aug 2, 2009 at 10:02 AM, Roel Kluin<roel.kluin@gmail.com> wr=
ote:
>> > Check whether index is within bounds before testing the element.
>>
>> The change is correct but:
>> - There are other places in the code with that construct. Even thoug=
h
>> they wouldn't trigger an overflow, why not fixing them too?
>> - Keep the likely: we are more likely to run out of data in the laye=
rs
>> than to exhaust the counter (which is why no overflow was ever
>> triggered, I believe ;-)
>
> No, lose the likely. =C2=A0It's a for-loop; gcc will do the right thi=
ng.

I stand corrected then. ;-)
Thanks willy.

T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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To: Roel Kluin <roel.kluin@gmail.com>
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On Sun, 2009-08-02 at 10:02 +0200, Roel Kluin wrote:
> Check whether index is within bounds before testing the element.
> 
> Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
> ---
> This also removes the likely, should it be kept?
> 
> diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
> index f9f9a5f..13a64bc 100644
> --- a/drivers/parisc/pdc_stable.c
> +++ b/drivers/parisc/pdc_stable.c
> @@ -370,7 +370,7 @@ pdcspath_layer_read(struct pdcspath_entry *entry, char *buf)
>  	if (!i)	/* entry is not ready */
>  		return -ENODATA;
>  	
> -	for (i = 0; devpath->layers[i] && (likely(i < 6)); i++)
> +	for (i = 0; i < 6 && devpath->layers[i]; i++)

Since all patterns like this (swapping the order of conditions with no
side effects in a for loop condition) are basically trivial, shouldn't
they be going via Jiri Kosina (trivial tree)?  

James


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From - Thu Nov 08 21:04:41 2018
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Subject: Re: [PATCH 5/12] drivers/parisc: Correct redundant test
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On Mon, Jul 27, 2009 at 06:13:48PM +0200, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
> 
> pa_pdc_cell has already been tested.  It seems that this test should be on the
> recently returned value io_pdc_cell.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://www.emn.fr/x-info/coccinelle/)
> 
> // <smpl>
> @r exists@
> local idexpression x;
> expression E;
> @@
> 
> if (x == NULL || ...) { ... when forall
>    return ...; }
> ... when != \(x=E\|x--\|x++\|--x\|++x\|x-=E\|x+=E\|x|=E\|x&=E\|&x\)
> (
> *x == NULL
> |
> *x != NULL
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>

Good catch!

Reviewed-by: Grant Grundler <grundler@parisc-linux.org>

thanks,
grant

> ---
>  drivers/parisc/lba_pci.c            |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
> index ede6146..3aeb327 100644
> --- a/drivers/parisc/lba_pci.c
> +++ b/drivers/parisc/lba_pci.c
> @@ -992,7 +992,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
>  		return;
>  
>  	io_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t), GFP_KERNEL);
> -	if (!pa_pdc_cell) {
> +	if (!io_pdc_cell) {
>  		kfree(pa_pdc_cell);
>  		return;
>  	}
> --
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On Mon, Aug 03, 2009 at 02:33:57PM -0600, Grant Grundler wrote:
> Good catch!
> 
> Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
> 

Thanks to both of you.

--Kyle

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New commits:
commit 2cde0835a59ac5c57c29eb8f54317d920db7f88b
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Aug 4 16:54:41 2009 +0200

    parisc: convert to asm-generic/hardirq.h
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>

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From - Thu Nov 08 21:04:41 2018
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From: Kyle McMartin <kyle@hera.kernel.org>
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Subject: [git] parisc: Changes to ref refs/heads/fixes
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Rebased ref, commits from common ancestor:
commit 88d1e1f0c7c0c009cd4f57a4d0e16b3f8b1af401
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Aug 4 16:54:41 2009 +0200

    parisc: convert to asm-generic/hardirq.h
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:04:41 2018
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From: Kyle McMartin <kyle@hera.kernel.org>
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Subject: [git] parisc: Changes to ref refs/heads/next
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New commits:
commit bb55a9147268749577b262490eb539e4eb173b2b
Merge: 88d1e1f0c7c0c009cd4f57a4d0e16b3f8b1af401 7209a334ff1154987aa3a74f1bb595d44bb0b9b2
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Tue Aug 4 11:23:18 2009 -0400

    Merge branch 'ptrace' into next

commit 88d1e1f0c7c0c009cd4f57a4d0e16b3f8b1af401
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Aug 4 16:54:41 2009 +0200

    parisc: convert to asm-generic/hardirq.h
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:04:42 2018
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From: Julia Lawall <julia@diku.dk>
Newsgroups: gmane.linux.ports.parisc
Subject: question about arch/parisc/kernel/module.c
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The file arch/parisc/kernel/module.c in the function module_finalize 
contains the following code:

	for (i = 1; i < hdr->e_shnum; i++) {
                if(sechdrs[i].sh_type == SHT_SYMTAB
                   && (sechdrs[i].sh_type & SHF_ALLOC)) {
	                int strindex = sechdrs[i].sh_link;
			/* FIXME: AWFUL HACK
	                 * The cast is to drop the const from
                         * the sechdrs pointer */
                        symhdr = (Elf_Shdr *)&sechdrs[i];
                        strtab = (char *)sechdrs[strindex].sh_addr;
	                break;
	        }
        }

The third line, (sechdrs[i].sh_type & SHF_ALLOC), loos suspicious, because 
actually SHT_SYMTAB and SHF_ALLOC have the same value.  Should the third 
line be (sechdrs[i].sh_flags & SHF_ALLOC) instead?

julia
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From - Thu Nov 08 21:04:42 2018
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Subject: Re: question about arch/parisc/kernel/module.c
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On Tue, Aug 04, 2009 at 09:43:57PM +0200, Julia Lawall wrote:
> 	for (i = 1; i < hdr->e_shnum; i++) {
>                 if(sechdrs[i].sh_type == SHT_SYMTAB
>                    && (sechdrs[i].sh_type & SHF_ALLOC)) {
> 	                int strindex = sechdrs[i].sh_link;
> 			/* FIXME: AWFUL HACK
> 	                 * The cast is to drop the const from
>                          * the sechdrs pointer */
>                         symhdr = (Elf_Shdr *)&sechdrs[i];
>                         strtab = (char *)sechdrs[strindex].sh_addr;
> 	                break;
> 	        }
>         }
> 
> The third line, (sechdrs[i].sh_type & SHF_ALLOC), loos suspicious, because 
> actually SHT_SYMTAB and SHF_ALLOC have the same value.  Should the third 
> line be (sechdrs[i].sh_flags & SHF_ALLOC) instead?
> 

Yup, you're quite right. Could you submit a patch, please?

regards, Kyle
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From - Thu Nov 08 21:04:42 2018
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From: Julia Lawall <julia@diku.dk>
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Subject: Re: question about arch/parisc/kernel/module.c
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On Tue, 4 Aug 2009, Kyle McMartin wrote:

> On Tue, Aug 04, 2009 at 09:43:57PM +0200, Julia Lawall wrote:
> > 	for (i = 1; i < hdr->e_shnum; i++) {
> >                 if(sechdrs[i].sh_type == SHT_SYMTAB
> >                    && (sechdrs[i].sh_type & SHF_ALLOC)) {
> > 	                int strindex = sechdrs[i].sh_link;
> > 			/* FIXME: AWFUL HACK
> > 	                 * The cast is to drop the const from
> >                          * the sechdrs pointer */
> >                         symhdr = (Elf_Shdr *)&sechdrs[i];
> >                         strtab = (char *)sechdrs[strindex].sh_addr;
> > 	                break;
> > 	        }
> >         }
> > 
> > The third line, (sechdrs[i].sh_type & SHF_ALLOC), loos suspicious, because 
> > actually SHT_SYMTAB and SHF_ALLOC have the same value.  Should the third 
> > line be (sechdrs[i].sh_flags & SHF_ALLOC) instead?
> > 
> 
> Yup, you're quite right. Could you submit a patch, please?

Yes, I will do that shortly.

julia
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From - Thu Nov 08 21:04:42 2018
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From: Julia Lawall <julia@diku.dk>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.janitors
Subject: [PATCH] arch/parisc: correct use of SHF_ALLOC
Date: Tue, 4 Aug 2009 22:27:07 +0200 (CEST)
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From: Julia Lawall <julia@diku.dk>

SHF_ALLOC is suitable for testing against the sh_flags field, not the
sh_type field.

Signed-off-by: Julia Lawall <julia@diku.dk>

---
 arch/parisc/kernel/module.c         |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index ef5caf2..c904817 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -853,7 +853,7 @@ int module_finalize(const Elf_Ehdr *hdr,
 	 * ourselves */
 	for (i = 1; i < hdr->e_shnum; i++) {
 		if(sechdrs[i].sh_type == SHT_SYMTAB
-		   && (sechdrs[i].sh_type & SHF_ALLOC)) {
+		   && (sechdrs[i].sh_flags & SHF_ALLOC)) {
 			int strindex = sechdrs[i].sh_link;
 			/* FIXME: AWFUL HACK
 			 * The cast is to drop the const from
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From - Thu Nov 08 21:04:42 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: add me to Maintainers
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To: Parisc List <linux-parisc@vger.kernel.org>
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It has been suggested that given my proficiency with less popular
architectures, I should be officially listed as willing to see to the
care and feeding of this one.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

---

diff --git a/MAINTAINERS b/MAINTAINERS
index b1114cf..9c0f456 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3863,6 +3863,7 @@ F:	drivers/block/paride/
 PARISC ARCHITECTURE
 M:	Kyle McMartin <kyle@mcmartin.ca>
 M:	Helge Deller <deller@gmx.de>
+M:	"James E.J. Bottomley" <jejb@parisc-linux.org>
 L:	linux-parisc@vger.kernel.org
 W:	http://www.parisc-linux.org/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git


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From - Thu Nov 08 21:04:42 2018
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From: Kyle McMartin <kyle@hera.kernel.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [git] parisc: Changes to ref refs/heads/next
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Rebased ref, commits from common ancestor:
commit 1e0d061b462e48f9b1609a29aed9a5abcf65833e
Merge: 582b0141b3c3b40c4757dccb4d4543ff391c1e45 7209a334ff1154987aa3a74f1bb595d44bb0b9b2
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Tue Aug 4 20:40:08 2009 -0400

    Merge branch 'ptrace' into next

commit 582b0141b3c3b40c4757dccb4d4543ff391c1e45
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date:   Tue Aug 4 23:59:55 2009 +0000

    parisc: add me to Maintainers
    
    It has been suggested that given my proficiency with less popular
    architectures, I should be officially listed as willing to see to the
    care and feeding of this one.
    
    Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

commit 157eac058fb0b6c6b9d973428221666fa9be87c9
Author: Julia Lawall <julia@diku.dk>
Date:   Tue Aug 4 22:27:07 2009 +0200

    parisc: arch/parisc: correct use of SHF_ALLOC
    
    SHF_ALLOC is suitable for testing against the sh_flags field, not the
    sh_type field.
    
    Signed-off-by: Julia Lawall <julia@diku.dk>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 7209a334ff1154987aa3a74f1bb595d44bb0b9b2
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Tue Jul 7 15:06:49 2009 -0400

    parisc: only allow access to USER_PSW_BITS in setregs
    
    We don't want to let users fribble bits they don't need to in their
    PSW... only let them set USER_PSW_BITS from setregs functions.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 8d447ae97881a99da68e09f27356958e99d17da8
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Tue Jul 7 13:27:42 2009 -0400

    parisc: unify compat PTRACE_{GET|SET}REGS paths
    
    Just call arch_ptrace for all of them and add some helpers to
    check TIF_32BIT.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 4d889f46750003340055ecac5f9682bef26d0774
Author: Kyle McMartin <kyle@shortfin.cabal.ca>
Date:   Tue Jul 7 02:43:20 2009 -0400

    parisc: ptrace {GET,SET}REGS and compat
    
    Add PTRACE_{GET,SET}REGS and wire them up with proper compat handlers.
    user_regset_struct in <asm-parisc/ptrace.h> is the user-visible regset
    format, and the coredump format.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 50d114781e157f9ff33a03fcbba4ed2507e4c723
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Mon Jul 6 17:28:53 2009 -0400

    parisc: first pass of new-style ptrace for parisc
    
    This is going to be super nasty to gdb if we ever try to wire up
    PTRACE_(GET|SET){,FP}REGS since the format is different between
    coredump and pt_regs.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit feb8fa8122d0e35a9f4be18ce69753fa17d58b79
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Jul 5 16:01:51 2009 -0400

    parisc: HAVE_ARCH_TRACEHOOK
    
    Let 'er rip.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit b31e3f6e369b337337bca9d99bb6d52ab2296bb6
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Jul 5 15:59:56 2009 -0400

    parisc: add skeleton syscall.h
    
    Needed for lib/syscall.c when HAVE_ARCH_TRACEHOOK.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit b58a8243c587882ca4d86202b2f2f85cd6ded1d1
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Jul 5 15:08:57 2009 -0400

    parisc: stop using task->ptrace for {single,block}step flags
    
    task->ptrace flags belong to generic code, so instead thief some
    TIF_ bits to use. Somewhat risky conversion of code to test TASK_FLAGS
    instead of TASK_PTRACE in assembly, but it looks alright in the end.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 6cdb88e40577eed1733efd46b35b447e80f693fc
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Jul 5 14:36:16 2009 -0400

    parisc: split syscall_trace into two halves
    
    Instead of fiddling with gr[20], restructure code to return whether
    or not to -ENOSYS. (Also do a bit of fiddling to let them take
    pt_regs directly instead of re-computing it.)
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit c43604ce7c05f87f87cefce28aa5e20d4c18133a
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Jul 5 14:39:58 2009 -0400

    parisc: add missing TI_TASK macro in syscall.S
    
    LDREG 0(%r1),%r1 really wants to be accessing thread_info.task,
    instead of hardcoding the 0.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 9f4259771faf1ffd99888796d925adae4c93630b
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Mon Apr 27 00:51:13 2009 -0400

    parisc: add TIF_NOTIFY_RESUME and use tracehook_notify_resume
    
    Call tracehook_notify_resume() in do_notify_resume.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 8eae5dbb03e8d9e44c6c07712825605ca591c604
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Mon Apr 27 00:29:53 2009 -0400

    parisc: tracehook_signal_handler
    
    This makes parisc call the standard tracehook_signal_handler hook
    in <linux/tracehook.h> after setting up a signal handler.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 2e595d94bf73a6fc9a076bf89e0b10fc9068bf3f
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sun Apr 26 23:53:34 2009 -0400

    parisc: tracehook_report_syscall
    
    This makes parisc use the standard tracehook_report_syscall_entry
    and tracehook_report_syscall_exit hooks in <linux/tracehook.h>.
    
    To do this, we need to access current->thread.regs, and to know
    whether we're entering or exiting the syscall, so add this to
    syscall_trace.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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New commits:
commit 582b0141b3c3b40c4757dccb4d4543ff391c1e45
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date:   Tue Aug 4 23:59:55 2009 +0000

    parisc: add me to Maintainers
    
    It has been suggested that given my proficiency with less popular
    architectures, I should be officially listed as willing to see to the
    care and feeding of this one.
    
    Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

commit 157eac058fb0b6c6b9d973428221666fa9be87c9
Author: Julia Lawall <julia@diku.dk>
Date:   Tue Aug 4 22:27:07 2009 +0200

    parisc: arch/parisc: correct use of SHF_ALLOC
    
    SHF_ALLOC is suitable for testing against the sh_flags field, not the
    sh_type field.
    
    Signed-off-by: Julia Lawall <julia@diku.dk>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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Rebased ref, commits from common ancestor:
commit 4b5273681a72dbf5ece64d0ae1e85d54722012fe
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date:   Tue Aug 4 23:59:55 2009 +0000

    parisc: add me to Maintainers
    
    It has been suggested that given my proficiency with less popular
    architectures, I should be officially listed as willing to see to the
    care and feeding of this one.
    
    Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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On Tue, Aug 4, 2009 at 7:59 PM, James
Bottomley<James.Bottomley@hansenpartnership.com> wrote:
> It has been suggested that given my proficiency with less popular
> architectures, I should be officially listed as willing to see to the
> care and feeding of this one.

Thanks James!

Your help with the VM subsystem has been invaluable.

Given a clear test case you certainly do your magic! :-)

Cheers,
Carlos.
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On Tue, Aug 04, 2009 at 11:59:55PM +0000, James Bottomley wrote:
> It has been suggested that given my proficiency with less popular
> architectures, I should be officially listed as willing to see to the
> care and feeding of this one.
> 
> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
>

Thanks. Applied.
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From - Thu Nov 08 21:04:42 2018
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On Tue, Aug 04, 2009 at 10:27:07PM +0200, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
> 
> SHF_ALLOC is suitable for testing against the sh_flags field, not the
> sh_type field.
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>
> 

Thanks Julia, applied.
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On Wed, Aug 05, 2009 at 04:41:12PM +0200, Andi Kleen wrote:
> > One question I had for the others (Andrew? other mm guys?) what is the
> > feelings of merging this feature? Leaving aside exact implementation
> > and just considering the high level design and cost/benefit. Last time
> > there were some people objecting, so I wonder the situation now? So
> > does anybody need more convincing? :)
> 
> The main objection last time was that it was a bit too late in the 
> release schedule.
> 
> I can't remember anyone really questioning the basic feature itself.
> 
> > Also I will just cc linux-arch. It would be interesting to know whether
> > powerpc, ia64, or s390 or others would be interested to use this feature?
> 
> ia64 is interested (but no code so far) I talked to DaveM and he seems to be 
> interested for sparc too.  I would expect other server architectures to 
> eventually use it as they get around to writing the necessary architecture 
> specific glue.

parisc could certainly implement this.  Don't know if there's interest.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."

From - Thu Nov 08 21:04:42 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPPA hang with PCI SERR or PARITY enabling
Date: Wed, 5 Aug 2009 11:45:07 -0600
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Cc: Randolph Chung <randolph@tausq.org>,
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To: Meelis Roos <mroos@linux.ee>
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On Fri, Jul 31, 2009 at 09:28:51AM +0300, Meelis Roos wrote:
> The real problem happens after tulip driver 
> loading and PCI configuration of the cards.

This would be consistent with add-on cards not getting MMIO
space assigned correctly. The ioread32() is one of several operations
to configure the card.

It would be helpful to know if 2.6.30.x kernels (from unstable)
show the same problem.

cheers,
grant

 From these, I only have the 
> SER PIM data, no kernel backtrace.
> 
> > > Begin: Running /scripts/init-premount ... [17179583.856000] Linux Tulip
> > > driver version 1.1.15-NAPI (Feb 27, 2007)
> > > [17179584.008000] tulip 0000:00:00.0: enabling device (0140 -> 0143)
> > > [17179584.028000] tulip0: no phy info, aborting mtable build
> > > [17179584.140000] tulip0:  MII transceiver #1 config 1000 status 782d
> > > advertising 0061.
> > > [17179584.164000] eth0: Digital DS21142/43 Tulip rev 65 at MMIO
> > > 0xfffffffff8006000, 00:10:83:fe:9c:b0, IRQ 66.
> > > [17179584.428000] tulip 0000:18:00.0: enabling device (0000 -> 0003)
> > > [17179584.436000] tulip 0000:18:00.0: enabling SERR and PARITY (0003 ->
> > > 0143)
> > > 
> > > ************* SYSTEM ALERT **************
> > > SYSTEM NAME: scaspdb24
> > > DATE: 07/30/2009 TIME: 17:30:06
> > > ALERT LEVEL: 7 = reserved
> > > 
> > > REASON FOR ALERT
> > > SOURCE: 0 = unknown, no source stated
> > > SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
> > > PROBLEM DETAIL: 0 = no problem detail
> > > 
> > > LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
> > >        ON       FLASH         OFF       ON         ON
> > > LED State: There was a system interruption that did not take the system
> > > down.
> > > Check Chassis and Console Logs for error messages.
> > > 
> > > 0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
> > > 0x5800087000FF6292 00006D06 1E111E06 - type 11 = Timestamp 07/30/2009
> > > 17:30:06
> [...]
> 
> > > Main Menu: Enter command or menu > ser pim
> > > 
> > > 
> > > PROCESSOR PIM INFORMATION
> > > 
> > > Original Product Number:   A5576A
> > > Current Product Number:    A5576A
> > > 
> > > 
> > > -----------------  Processor 0 HPMC Information - PDC Version: 44.28  ------ 
> > > Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)
> > > 
> > > HPMC Chassis Codes 
> > >        Chassis Code        Extension        ------------        ---------
> > > 0x0000082000ff6242  0x0000000000000000
> > >        0x1800082011006312  0xcb81000000000000
> > >        0x0000087000ff6292  0x000000f0f0000000
> > >        0x6000082070006062  0x0000000000100010
> > >        0x7000082070006082  0x0000000000b92400
> > >        0x7000082379006133  0xc1bff0fffed08040
> > >        0x0000080080006310  0x0000000000000001
> > >        0x000008008000631f  0x0000000000000000
> > >        
> > > General Registers 0 - 31
> > > 00-03  0000000000000000  00000000402e7098  000000000c1b5c78
> > > 000000007f954680
> > > 04-07  000000000c1b1000  000000000c1fc800  000000000c1c79b0
> > > 000000007f954000
> > > 08-11  000000000c1fc830  0000000000000003  00000000fe87e800
> > > 000000000c1fc800
> > > 12-15  0000000000000000  00000000fb6a2d5e  00000000fb6a2b5e
> > > 0000000000000003
> > > 16-19  0000000000026420  0000000000000000  00000000fe87e880
> > > 000000007f9555b8
> > > 20-23  0000000000000000  000000007f9552c0  ffffffffc0000000
> > > 0000000000100000
> > > 24-27  0000000000000000  0000000000000000  000000000c1fc830
> > > 00000000406791c0
> > > 28-31  000000000c1b4010  000000007f858be0  000000007f858c90
> > > 000000000c1b3fd0
> > > 
> > > 
> > > Control Registers 0 - 31
> > > 00-03  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 04-07  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 08-11  000000000000011c  0000000000000000  00000000000000c0
> > > 0000000000000001
> > > 12-15  0000000000000000  0000000000000000  0000000000103000
> > > ff80000000000000
> > > 16-19  0000003aeb5d81e1  0000000000000000  00000000402e70d0
> > > 000000000f40109c
> > > 20-23  00000000a627ff41  000000004fdfc830  000000ff0804ff0f
> > > 8000000000000000
> > > 24-27  0000000000586000  000000003f892000  ffffffffffffffff
> > > 0000000040001480
> > > 28-31  ffffffffffffffff  ffffffffffffff2f  000000007f858000
> > > ffffffffffffffff
> > > 
> > > Space Registers 0 - 7
> > > 00-03  0004d800          00000000          00000000          00047000
> > > 04-07  00000000          00000000          00000000          00000000
> > > 
> > > 
> > > IIA Space (back entry)       = 0x0000000000000000
> > > IIA Offset (back entry)      = 0x00000000402e70d4
> > > Check Type                   = 0x20000000
> > > CPU State                    = 0x9e000004
> > > Cache Check                  = 0x00000000
> > > TLB Check                    = 0x00000000
> > > Bus Check                    = 0x0030103b
> > > Assists Check                = 0x00000000
> > > Assist State                 = 0x00000000
> > > Path Info                    = 0x00000000
> > > System Responder Address     = 0x000000ffd053f830
> > > System Requestor Address     = 0xfffffffffffa0000
> > > 
> > > 
> > > Floating Point Registers 0 - 31
> > > 00-03  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 04-07  0000000000000000  00000000bf840350  00000000bf840358
> > > 0000000000000008
> > > 08-11  000000004020b518  00000000ff83a268  0000000000000000
> > > 0000000000000002
> > > 12-15  00000000ff83fc10  00000000ff8403f0  00000000ff83fc00
> > > 00000000406791c0
> > > 16-19  0000000000000002  00000000ff83a268  00000000406879c0
> > > 00000000406809c0
> > > 20-23  00000000000000ff  00000000406791c0  0000000000000000
> > > 0000000000000000
> > > 24-27  0000000000000000  0000000000000000  fffffffffffff000
> > > 00000000fefa6000
> > > 28-31  0000000000000000  0000000000000000  ffffffffffffff9c
> > > 00000000406791c0
> > > 
> > > 
> > > Check Summary                = 0xcb81000000000000
> > > Available Memory             = 0x00000000c0000000
> > > CPU Diagnose Register 2      = 0x0203000100802004
> > > CPU Status Register 0        = 0x2440c24000000000
> > > CPU Status Register 1        = 0x8002000000000000
> > > SADD LOG                     = 0x147ffcffffffffff
> > > Read Short LOG               = 0xc1af00ffd053f830
> > > 
> > > 
> > > 
> > > -----------------  Processor 0 LPMC Information ------------------
> > > 
> > > Check Type                   = 0x00000000
> > > IC Parity Info               = 0x00000000
> > > Cache Check                  = 0x00000000
> > > TLB Check                    = 0x00000000
> > > Bus Check                    = 0x00000000
> > > Assists Check                = 0x00000000
> > > Assist State                 = 0x00000000
> > > Path Info                    = 0x00000000
> > > System Responder Address     = 0x0000000000000000
> > > System Requestor Address     = 0x0000000000000000
> > > 
> > > 
> > > 
> > > -----------------  Processor 0 TOC Information -------------------
> > > 
> > > General Registers 0 - 31
> > > 00-03  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 04-07  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 08-11  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 12-15  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 16-19  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 20-23  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 24-27  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 28-31  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 
> > > 
> > > Control Registers 0 - 31
> > > 00-03  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 04-07  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 08-11  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 12-15  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 16-19  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 20-23  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 24-27  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 28-31  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 
> > > Space Registers 0 - 7
> > > 00-03  00000000          00000000          00000000          00000000
> > > 04-07  00000000          00000000          00000000          00000000
> > > 
> > > IIA Space (back entry)       = 0x0000000000000000
> > > IIA Offset (back entry)      = 0x0000000000000000
> > > CPU State                    = 0x00000000
> > > 
> > > 
> > > 
> > > -----------------  Processor 3 HPMC Information - PDC Version: 44.28  ------ 
> > > Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)
> > > 
> > > HPMC Chassis Codes 
> > >        Chassis Code        Extension        ------------        ---------
> > > 0x0000082000ff6242  0x0000000000000000
> > >        0x1800082011036322  0xcb81800000000000
> > >        
> > > General Registers 0 - 31
> > > 00-03  0000000000000000  000000004067a9c0  000000004011c18c
> > > 0000000043541518
> > > 04-07  00000000406791c0  00000000fc985000  000000007f93f000
> > > 0000000000000000
> > > 08-11  00000000fca67918  000000007f8d9cc0  00000000404eb740
> > > 0000000040000000
> > > 12-15  0000000000000000  0000000000000200  0000000040311427
> > > 0000000000000000
> > > 16-19  00000000419e85c8  000000007f93f888  0000000000000000
> > > 0000000000000000
> > > 20-23  000000000003f93f  00000000fffffffa  0000000000000000
> > > 0000000000000040
> > > 24-27  0000000000000010  00000000fc985fc0  000000004050a000
> > > 00000000406791c0
> > > 28-31  0000000000000001  000000007f94c800  000000007f94c830
> > > 00000000005282a3
> > > 
> > > 
> > > Control Registers 0 - 31
> > > 00-03  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 04-07  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 08-11  0000000000000146  0000000000000000  00000000000000c0
> > > 0000000000000000
> > > 12-15  0000000000000000  0000000000000000  0000000000103000
> > > ff80000000000000
> > > 16-19  0000003aeb5d7f36  0000000000000000  000000004011c190
> > > 0000000004a01200
> > > 20-23  0000000000000000  00000000fc985000  000000ff0804f90f
> > > 8000000000000000
> > > 24-27  0000000000586000  000000003f952000  fffffffff37f7f00
> > > 0000000040001b60
> > > 28-31  fffffffff37f7f00  fffffffff37f7f00  000000007f94c000
> > > fffffffff37f7f00
> > > 
> > > Space Registers 0 - 7
> > > 00-03  00051800          00000000          00000000          00051800
> > > 04-07  00000000          00000000          00000000          00000000
> > > 
> > > 
> > > IIA Space (back entry)       = 0x0000000000000000
> > > IIA Offset (back entry)      = 0x000000004011c194
> > > Check Type                   = 0x20000000
> > > CPU State                    = 0x9e000004
> > > Cache Check                  = 0x00000000
> > > TLB Check                    = 0x00000000
> > > Bus Check                    = 0x0030000d
> > > Assists Check                = 0x00000000
> > > Assist State                 = 0x00000000
> > > Path Info                    = 0x00000000
> > > System Responder Address     = 0xfffffffffffa6000
> > > System Requestor Address     = 0xfffffffffffa0000
> > > 
> > > 
> > > Floating Point Registers 0 - 31
> > > 00-03  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 04-07  0000000000000000  00000000bf840350  00000000bf840358
> > > 0000000000000008
> > > 08-11  000000004020b518  00000000ff83a268  0000000000000000
> > > 0000000000000002
> > > 12-15  00000000ff83fc10  00000000ff8403f0  00000000ff83fc00
> > > 00000000406791c0
> > > 16-19  0000000000000002  00000000ff83a268  00000000406879c0
> > > 00000000406809c0
> > > 20-23  00000000000000ff  00000000406791c0  0000000000000000
> > > 0000000a4067a9c0
> > > 24-27  0000000000000000  00000000406841c0  fffffffffffff000
> > > 00000000fefa6000
> > > 28-31  0000000000000000  0000000000000000  ffffffffffffff9c
> > > 00000000406791c0
> > > 
> > > 
> > > Check Summary                = 0xcb81800000000000
> > > Available Memory             = 0x00000000c0000000
> > > CPU Diagnose Register 2      = 0x0203030100802004
> > > CPU Status Register 0        = 0x3440c24000000000
> > > CPU Status Register 1        = 0x8000000000000000
> > > SADD LOG                     = 0x4800000000000000
> > > Read Short LOG               = 0xc13ff0f0f0047218
> > > 
> > > 
> > > 
> > > -----------------  Processor 3 LPMC Information ------------------
> > > 
> > > Check Type                   = 0x00000000
> > > IC Parity Info               = 0x00000000
> > > Cache Check                  = 0x00000000
> > > TLB Check                    = 0x00000000
> > > Bus Check                    = 0x00000000
> > > Assists Check                = 0x00000000
> > > Assist State                 = 0x00000000
> > > Path Info                    = 0x00000000
> > > System Responder Address     = 0x0000000000000000
> > > System Requestor Address     = 0x0000000000000000
> > > 
> > > 
> > > 
> > > -----------------  Processor 3 TOC Information -------------------
> > > 
> > > General Registers 0 - 31
> > > 00-03  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 04-07  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 08-11  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 12-15  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 16-19  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 20-23  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 24-27  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 28-31  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 
> > > 
> > > Control Registers 0 - 31
> > > 00-03  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 04-07  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 08-11  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 12-15  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 16-19  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 20-23  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 24-27  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 28-31  0000000000000000  0000000000000000  0000000000000000
> > > 0000000000000000
> > > 
> > > Space Registers 0 - 7
> > > 00-03  00000000          00000000          00000000          00000000
> > > 04-07  00000000          00000000          00000000          00000000
> > > 
> > > IIA Space (back entry)       = 0x0000000000000000
> > > IIA Offset (back entry)      = 0x0000000000000000
> > > CPU State                    = 0x00000000
> > > 
> > > 
> > > --------------  Memory Error Log Information  --------------
> > > 
> > > Bus 0 Log Information
> > > 
> > > Timestamp =    Thu Jul  30 17:30:07 GMT 2009    (20:09:07:30:17:30:07)
> > > 
> > >   OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
> > >   --  --  --      -----      -  -  -  ----  ---  --  --  --
> > >   X       X     ERR_ERROR       X            X           
> > > Bus Requestor Address      = 0xfffffffffffa0000
> > > Bus Target Address         = 0x0000000000000000
> > > Bus Responder Address      = 0xfffffffffed00000
> > > 
> > > Error Status Reg           = 0x0000000000100010
> > > Runway Control Reg         = 0x0000021c00001418
> > > Runway Address Reg         = 0xc1bff0fffed08040
> > > Runway Data High Reg       = 0xe840c000083c025c
> > > Runway Data Low Reg        = 0xe840c000083c025c
> > > Memory Address Reg         = 0x000001ff3fffffff
> > > Memory Address Corr Reg    = 0x000001ff3fffffff
> > > Memory Syndrome Reg        = 0x0000000000000000
> > > Memory Syndrome Corr Reg   = 0x0000000000000000
> > > 
> > > 
> > > 
> > >  Address/Control Parity Error Registers  
> > >    Address/Control Parity Error Bit (mem_addr_par_stat) Not Set 
> > > 
> > > 
> > > ------------  I/O Module Error Log Information  ------------
> > > 
> > > 
> > >    No I/O module errors logged
> > > 
> > > 
> > > Main Menu: Enter command or menu > 
> > 
> 
> -- 
> Meelis Roos (mroos@linux.ee)
> --
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From - Thu Nov 08 21:04:43 2018
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On 07/21/2009 12:58 AM, Michael Buesch wrote:
> loff_t is a signed type. If userspace passes a negative ppos, the "count"
> range check is weakened. "count"s bigger than HPEE_MAX_LENGTH will pass the check.
> Also, if ppos is negative, the readb(eisa_eeprom_addr + *ppos) will poke in random
> memory.
>
> Signed-off-by: Michael Buesch<mb@bu3sch.de>
> Cc: stable@kernel.org

Thanks!

Applied and pushed upstream.

Helge


> Patch is untested due to lack of hardware.
>
> ---
>   drivers/parisc/eisa_eeprom.c |    2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> --- linux-2.6.orig/drivers/parisc/eisa_eeprom.c
> +++ linux-2.6/drivers/parisc/eisa_eeprom.c
> @@ -48,21 +48,21 @@ static loff_t eisa_eeprom_llseek(struct
>   	return (offset>= 0&&  offset<  HPEE_MAX_LENGTH) ? (file->f_pos = offset) : -EINVAL;
>   }
>
>   static ssize_t eisa_eeprom_read(struct file * file,
>   			      char __user *buf, size_t count, loff_t *ppos )
>   {
>   	unsigned char *tmp;
>   	ssize_t ret;
>   	int i;
>   	
> -	if (*ppos>= HPEE_MAX_LENGTH)
> +	if (*ppos<  0 || *ppos>= HPEE_MAX_LENGTH)
>   		return 0;
>   	
>   	count = *ppos + count<  HPEE_MAX_LENGTH ? count : HPEE_MAX_LENGTH - *ppos;
>   	tmp = kmalloc(count, GFP_KERNEL);
>   	if (tmp) {
>   		for (i = 0; i<  count; i++)
>   			tmp[i] = readb(eisa_eeprom_addr+(*ppos)++);
>
>   		if (copy_to_user (buf, tmp, count))
>   			ret = -EFAULT;
>

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From: Meelis Roos <mroos@linux.ee>
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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To: Grant Grundler <grundler@parisc-linux.org>
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> It would be helpful to know if 2.6.30.x kernels (from unstable)
> show the same problem.

Will test.

-- 
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH] parisc-isa-eeprom: Fix loff_t usage
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On Wed, 2009-08-05 at 20:38 +0200, Helge Deller wrote:
> On 07/21/2009 12:58 AM, Michael Buesch wrote:
> > loff_t is a signed type. If userspace passes a negative ppos, the "count"
> > range check is weakened. "count"s bigger than HPEE_MAX_LENGTH will pass the check.
> > Also, if ppos is negative, the readb(eisa_eeprom_addr + *ppos) will poke in random
> > memory.
> >
> > Signed-off-by: Michael Buesch<mb@bu3sch.de>
> > Cc: stable@kernel.org
> 
> Thanks!
> 
> Applied and pushed upstream.

Hang on a minute, this is an untested patch.  True, it will likely cause
no harm, but it would be more usual to wait for the actual confirmation
before declaring the problem fixed.

I'm also very concerned about this:

http://lkml.org/lkml/2009/8/2/107

That's a breach of standard maintainer protocol since you failed to copy
the architecture list on the pull request.

Parisc is in a precarious position as a marginal architecture that isn't
being produced any more.  Having duelling trees and maintainers is
definitely very unhelpful because it could cause Linus to lose
confidence in our ability as a community.

First things first, you need to agree on a single tree ... although it's
perfectly possible to have multiple maintainers commit to it (x86 works
this way), can we do this at least before the schizophrenia gets
noticed?

Thanks,

James


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From - Thu Nov 08 21:04:43 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH] parisc-isa-eeprom: Fix loff_t usage
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On Wed, Aug 05, 2009 at 02:57:01PM -0500, James Bottomley wrote:
> Hang on a minute, this is an untested patch.  True, it will likely cause
> no harm, but it would be more usual to wait for the actual confirmation
> before declaring the problem fixed.
> 

I'd be shocked if anyone was actually in a position to test this at
all... I don't remember where I put my last Mongoose and HP VG ethernet
card... It looked fine to me though.

> I'm also very concerned about this:
> 
> http://lkml.org/lkml/2009/8/2/107
> 
> That's a breach of standard maintainer protocol since you failed to copy
> the architecture list on the pull request.
> 
> Parisc is in a precarious position as a marginal architecture that isn't
> being produced any more.  Having duelling trees and maintainers is
> definitely very unhelpful because it could cause Linus to lose
> confidence in our ability as a community.
> 
> First things first, you need to agree on a single tree ... although it's
> perfectly possible to have multiple maintainers commit to it (x86 works
> this way), can we do this at least before the schizophrenia gets
> noticed?
> 

I think Helge was just upset that I wasn't merging things fast enough,
and, fair enough, I guess. I promise to rectify that, and if I don't, I
plan to step aside.

regards, Kyle
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From - Thu Nov 08 21:04:43 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [PATCH] parisc-isa-eeprom: Fix loff_t usage
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On Wed, Aug 05, 2009 at 04:14:56PM -0400, Kyle McMartin wrote:
> On Wed, Aug 05, 2009 at 02:57:01PM -0500, James Bottomley wrote:
> > Hang on a minute, this is an untested patch.  True, it will likely cause
> > no harm, but it would be more usual to wait for the actual confirmation
> > before declaring the problem fixed.
> > 
> 
> I'd be shocked if anyone was actually in a position to test this at
> all... I don't remember where I put my last Mongoose and HP VG ethernet
> card... It looked fine to me though.

My 725 is sitting idle in the rack ... I think it's got two EISA cards
in it.  I've also got a Mongoose card for the 715.

There's two problems that would prevent me from testing this.

One is that I don't have any HIL devices, and the current HIL driver
goes insane with printks if you have no HIL deviecs plugged in.

The other is that the EISA code refuses to work until the EISA cards
have been configured, and we don't have a Linux utility to configure
EISA cards.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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On Wed, Aug 05, 2009 at 02:20:57PM -0600, Matthew Wilcox wrote:
> On Wed, Aug 05, 2009 at 04:14:56PM -0400, Kyle McMartin wrote:
> > On Wed, Aug 05, 2009 at 02:57:01PM -0500, James Bottomley wrote:
> > > Hang on a minute, this is an untested patch.  True, it will likely cause
> > > no harm, but it would be more usual to wait for the actual confirmation
> > > before declaring the problem fixed.
> > > 
> > 
> > I'd be shocked if anyone was actually in a position to test this at
> > all... I don't remember where I put my last Mongoose and HP VG ethernet
> > card... It looked fine to me though.
> 
> My 725 is sitting idle in the rack ... I think it's got two EISA cards
> in it.  I've also got a Mongoose card for the 715.
> 
> There's two problems that would prevent me from testing this.
> 
> One is that I don't have any HIL devices, and the current HIL driver
> goes insane with printks if you have no HIL deviecs plugged in.
> 
> The other is that the EISA code refuses to work until the EISA cards
> have been configured, and we don't have a Linux utility to configure
> EISA cards.
> 

It just so happens I have a PS2<->HIL thingy doodad around here.

:)
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Subject: Re: [PATCH] parisc-isa-eeprom: Fix loff_t usage
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> > First things first, you need to agree on a single tree ... although it's
> > perfectly possible to have multiple maintainers commit to it (x86 works
> > this way), can we do this at least before the schizophrenia gets
> > noticed?
> > 
> 
> I think Helge was just upset that I wasn't merging things fast enough,
> and, fair enough, I guess. I promise to rectify that, and if I don't, I
> plan to step aside.

I agree with James.  Kyle, your support is crucial, but you don't have
to carry the full burden.  A single tree that is updated regularly makes
it easy for all maintainers to commit to, and for everone to test the
changes in the tree that haven't been pushed upstream.

I'm also pushing for stable parisc trees as well if there are enough relevant
changes to make this useful.

I know GCC's procedure are different, but it has a single master tree
with several hundred maintainers.  A maintainer has either global commit,
partial commit, or commit after approval priviledge.  There is a
test requirement for all changes, and all changes have to been sent to
the relevant lists.  Sometimes things break as a result of a change,
but not that often.

I think all the parisc maintainers should be able to push changes
upstream, but the list should be notified when this is done.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc-isa-eeprom: Fix loff_t usage
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On 08/05/2009 10:14 PM, Kyle McMartin wrote:
> On Wed, Aug 05, 2009 at 02:57:01PM -0500, James Bottomley wrote:
>> I'm also very concerned about this:
>>
>> http://lkml.org/lkml/2009/8/2/107
>>
>> That's a breach of standard maintainer protocol since you failed to copy
>> the architecture list on the pull request.

Yes, I sadly missed to copy parisc-mailing-list, but at least I remembered
to copy Kyle.

>> Parisc is in a precarious position as a marginal architecture that isn't
>> being produced any more.  Having duelling trees and maintainers is
>> definitely very unhelpful because it could cause Linus to lose
>> confidence in our ability as a community.

Agreed.

>> First things first, you need to agree on a single tree ... although it's
>> perfectly possible to have multiple maintainers commit to it (x86 works
>> this way), can we do this at least before the schizophrenia gets
>> noticed?

Yep.

> I think Helge was just upset that I wasn't merging things fast enough,
> and, fair enough, I guess. I promise to rectify that, and if I don't, I
> plan to step aside.

Thanks Kyle!
Yes, this was the only reason.

Just a few word on this whole thread, and the unplanned discussion
on lkml...

When I sent the pull request, my intention was never to offend Kyle
or any other parisc developer. I was even astonished that Kyle offended
me suddenly that harsh in public. Neither was my intend to create a duelling
tree to the one from Kyle.

I just wanted to make sure, that the latest important patches (e.g. the
GOT fix for 64bit kernel modules) just would not miss the 2.6.31 kernel.
As we all know, Debian developers lately discussed regularily, if the
parisc port should be dropped as a stable/release platform. IMHO, one
of the main reasons for the bad state is, that often patches were not
merged upstream (or at least not in time), and then backporting them
was complicated and often missed.

My pull request included only simple patches. It was planned as a one-time
thing just to help Kyle with the maintenance of the outstanding patches.
I agree with Kyle, that I should have sent him a notice _before_ sending
the pull-request to lkml. Again, I just didn't thought he would be
offended by this, esp. since it was just a collection of patches which
went to the parisc-list, with a few simple patches by me.

Regarding the push of outstanding patches, I'd really very much prefer
a joint tree, to which the maintainers can push. That way everyone can
regularily pull a working parisc tree. Furthermore, I'd prefer if we
can get the timing right, that most of the outstanding patches goes
upstream with a -rc1 release, and then only a minor patchset would
be pushed in -rc5 or similar time frame.

Helge

PS: James, welcome as a parisc maintainer! (http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commitdiff;h=4b5273681a72dbf5ece64d0ae1e85d54722012fe)
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From - Thu Nov 08 21:04:44 2018
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From: Bernd Gietzelt <berndg@fsim-ev.de>
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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On Wed, 5 Aug 2009 22:42:34 +0300 (EEST)
Meelis Roos <mroos@linux.ee> wrote:

> > It would be helpful to know if 2.6.30.x kernels (from unstable)
> > show the same problem.
> 
> Will test.

I've done some test with actual and older kernels from debian because
my system shows the same behavior.

2.6.18-5-parisc64-smp 	Kernel panic at statfs
2.6.18-6-parisc64-smp 	Kernel panic at statfs
2.6.26-2-parisc64-smp 	SERR & PARITY
2.6.30-1-parisc64-smp 	Kernel panic
at /build/buildd/linux-2.6-2.6.30/debian/build/source_hppa_none/kernel/smp.c:369
2.6.30-1-parisc64 	SERR & PARITY 

The complete logs can be found here:
http://89.144.17.178/~bernd/lasatonline.de/dokuwiki/doku.php?id=programmieren:administration:computer:ulrike


Some idea what's behind this failure message?

<snap>
Begin: Running /scripts/init-bottom ... done.
run-init: statfsKernel panic - not syncing: Attempted to kill init!
 /: Function not 
</snap>


If some additional test/logs needed: I'm compliant to deliever them.


-- 
Bernd Gietzelt <berndg@fsim-ev.de>
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From - Thu Nov 08 21:04:44 2018
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On Thu, Aug 06, 2009 at 02:15:42PM +0200, Bernd Gietzelt wrote:
> On Wed, 5 Aug 2009 22:42:34 +0300 (EEST)
> Meelis Roos <mroos@linux.ee> wrote:
> 
> > > It would be helpful to know if 2.6.30.x kernels (from unstable)
> > > show the same problem.
> > 
> > Will test.
> 
> I've done some test with actual and older kernels from debian because
> my system shows the same behavior.

Wow! Thank you!

> 
> 2.6.18-5-parisc64-smp 	Kernel panic at statfs
> 2.6.18-6-parisc64-smp 	Kernel panic at statfs
> 2.6.26-2-parisc64-smp 	SERR & PARITY
> 2.6.30-1-parisc64-smp 	Kernel panic
> at /build/buildd/linux-2.6-2.6.30/debian/build/source_hppa_none/kernel/smp.c:369

In my linux-2.6.30 source tree, kernel/smp.c:369 has this code:
361 void smp_call_function_many(const struct cpumask *mask,
362                             void (*func)(void *), void *info, bool wait)
363 {
364         struct call_function_data *data;
365         unsigned long flags;
366         int cpu, next_cpu, this_cpu = smp_processor_id();
367 
368         /* Can deadlock when called with interrupts disabled */
369         WARN_ON_ONCE(irqs_disabled() && !oops_in_progress);
370 
371         /* So, what's a CPU they want? Ignoring this one. */
372         cpu = cpumask_first_and(mask, cpu_online_mask);
373         if (cpu == this_cpu)
374                 cpu = cpumask_next_and(cpu, mask, cpu_online_mask);
375 
...

And I don't expect the WARN_ON_ONCE() is directly related to whatever
is panic'ing later since the expected symptom is a deadlock.


> 2.6.30-1-parisc64 	SERR & PARITY 
> 
> The complete logs can be found here:
> http://89.144.17.178/~bernd/lasatonline.de/dokuwiki/doku.php?id=programmieren:administration:computer:ulrike

Well done - thanks!

In general, adding "pdcchassis=0" will stop the GSP (aka MP) from
putting it's footprint on top of the regular console output:
...
[    7.232000] Freeing unused kernel memory: <0>------------[ cut here ]------------
[    7.388000] Badness at /build/buildd/linux-2.6-2.6.30/debian/build/source_hppa_none/kernel/smp.c:369
...
[    9.092000] Backtrace:

********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

processor                 system panic               1B00
...


The pdcchassis support obscured some of the console output.  The obscured
console output is available by going into the GSP/MP and showing the
console log.  It's easier to disable this "feature" by adding
pdchassis=0 to the kernel parameters and cut/paste the regular output.


> Some idea what's behind this failure message?

"Badness at ..." is the WARN_ON_ONCE().  It's not the panic message.
IIRC, this particular message is known to only occur on the first fork
when /sbin/init (process 0) is started.

I hate to ask you to try 2.6.30-1-parisc64-smp again with "pdcchassis=0"
but can't think of any other way to collect the panic output
at this point.

> <snap>
> Begin: Running /scripts/init-bottom ... done.
> run-init: statfsKernel panic - not syncing: Attempted to kill init!
>  /: Function not 
> </snap>
> 
> 
> If some additional test/logs needed: I'm compliant to deliever them.

Thank you so much since I'm not seeing this on my own machines.

cheers,
grant
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From - Thu Nov 08 21:04:44 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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On Thu, Aug 06, 2009 at 02:15:42PM +0200, Bernd Gietzelt wrote:
> I've done some test with actual and older kernels from debian because
> my system shows the same behavior.
...
> 2.6.30-1-parisc64 	SERR & PARITY 

Bernd,
BTW, this output has the same issue as the -smp where
the GSP is printing PDC chassis codes/info instead of
kernel output.

...
[   11.924000] sym53c8xx 0000:38:00.0: enabling device (0000 -> 0003)
[   11.940000] sym53c8xx 0000:38:00.0: enabling SERR and PARITY (0003 -> 0143)

************* SYSTEM ALERT **************
SYSTEM NAME: rfhinf238
DATE: 08/06/2009 TIME: 09:32:34
ALERT LEVEL: 7 = reserved
...
0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
0x5800087000FF6292 00006D07 06092022 - type 11 = Timestamp 08/06/2009 09:32:34
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:a
*****************************************

the 0x6292 indicates this is an HPMC and you've included the PIM dump
so we shouldn't need anything else at the moment. If you want
to retry with "pdcchassis=0", it would be nice to have the complete
output but I don't think it's required (yet).

I'm pointing this out since the symptom in your listing should
be "HPMC in foo()" where we look up the "IIA Offset"
(0x000000004029d6ac) in the System.map file.
(See "a.c" in http://cvs.parisc-linux.org/build-tools/ to help)

It's also good to look up GR02 (0x000000000c1d5448) at the
same time though GR02 not always as useful.

I forgot how to look up the symbol for modules since HPMC's
after /sbin/init has started often occur becuase of additional
kernel modules getting loaded or NIC interfaces are initialized
when ifconfig'd. Tulip is a suspect in this case.

thanks again,
grant
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From: Bernd Gietzelt <berndg@fsim-ev.de>
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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On Fri, 7 Aug 2009 10:22:42 -0600
Grant Grundler <grundler@parisc-linux.org> wrote:

> > 2.6.30-1-parisc64 	SERR & PARITY 
> > The complete logs can be found here:
> Well done - thanks!

I try to help.
  
> I hate to ask you to try 2.6.30-1-parisc64-smp again with
> "pdcchassis=0" but can't think of any other way to collect the panic
> output at this point.

I've update the entry on: http://89.144.17.178/~bernd/lasatonline.de/dokuwiki/doku.php?id=programmieren:administration:computer:ulrike#kernel_2.6.30-1-parisc64-smp

[    7.988000] Freeing unused kernel memory: <0>------------[ cut here ]------------
[    8.096000] Badness at /build/buildd/linux-2.6-2.6.30/debian/build/source_hppa_none/kernel/smp.c:369
[    8.104000] 
[    8.104000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[    8.108000] PSW: 00001000000001100000000000001110 Not tainted
[    8.116000] r00-03  000000000806000e 0000000040686fa0 0000000040182c6c 000000004058d020
[    8.120000] r04-07  0000000040668fa0 000000004065e7c0 00000000404f7db0 000000r08-11  0000000040686fa0 000000004065e7c0 0000000000000000 00000000406797a0
[    8.644000] r12-15  0000000000000001 0000000000000001 0000000000000000 0000000000000001
[    8.776000] r16-19  00000000f00003b0 0000000040686fa0 000000012f87cb40 00000000406d6000
[    8.784000] r20-23  0000000000000000 00000000406d6000 ffffffffffffffff 0000000000000001
[    8.788000] r24-27  0000000000000000 000000004065e7c0 00000000404f7db0 0000000040668fa0
[    8.796000] r28-31  0000000000000000 000000012f880490 000000012f880580 0000000000000000
[    8sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    9.208000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    9.340000] 
[    9.340000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401829b4 00000000401829b8
[    9.348000]  IIR: 03ffe01f    ISR: 0000000010240000  IOR: 0000000179de7d0c
[    9.356000]  CPU:        0   CR30: 000000012f880000 CR31: 0000000000008020
[    9.360000]  ORIG_R28: 000000000800000e
[    9.364000]  mp_call_function_many+0x7c/0x2f8
[    9.768000]  IAOQ[1]: smp_call_function_many+0x80/0x2f8
[    9.796000]  RP(r2): smp_call_function+0x3c/0x50
[    9.800000] Backtrace:
[    9.804000] Backtrace:
[    9.804000]  [<0000000040115fe8>] printk+0x40/0x50
[    9.804000]  [<0000000040152760>] print_tainted+0xc0/0xe0
[    9.804000]  [<0000000040104084>] intr_check_sig+0x0/0x38
[    9.804000]  [<0000000040104074>] intr_return+0x0/0x4
[    9.804000]  [<0000000040182c6c>] smp_call_function+0x3c/0x50
[    9.804000]  [<0000000040159d08>] on_each_cpu+0x28/0x68
[    9.804000]  [<000000004011b92c>] free_initmem+0x94/0x340

Is there a guide "HowTo read kernel debug log"? What mean the numbers behind the function names?

[<memory adress>] function name + 0x*/0x*

greetings,
bernd

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From - Thu Nov 08 21:04:44 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
Date: Sat, 8 Aug 2009 23:27:14 -0600
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References: <20090615134519.6EE824FC5@hiauly1.hia.nrc.ca> <Pine.SOC.4.64.0907302054100.20870@math.ut.ee> <4A724818.4080909@tausq.org> <Pine.SOC.4.64.0907310923520.710@math.ut.ee> <20090805174507.GB11458@lackof.org> <Pine.SOC.4.64.0908052241550.4076@math.ut.ee> <20090806141542.bf48febf.berndg@fsim-ev.de> <20090807162242.GA18373@lackof.org> <20090808113100.37e0f4ab.berndg@fsim-ev.de>
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On Sat, Aug 08, 2009 at 11:31:00AM +0200, Bernd Gietzelt wrote:
...
> > I hate to ask you to try 2.6.30-1-parisc64-smp again with
> > "pdcchassis=0" but can't think of any other way to collect the panic
> > output at this point.
> 
> I've update the entry on: http://89.144.17.178/~bernd/lasatonline.de/dokuwiki/doku.php?id=programmieren:administration:computer:ulrike#kernel_2.6.30-1-parisc64-smp

I'm not able to load this URL...doesn't fail; just times out eventually.
I'll try again tomorrow.

> 
> [    7.988000] Freeing unused kernel memory: <0>------------[ cut here ]------------
> [    8.096000] Badness at /build/buildd/linux-2.6-2.6.30/debian/build/source_hppa_none/kernel/smp.c:369
> [    8.104000] 
> [    8.104000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [    8.108000] PSW: 00001000000001100000000000001110 Not tainted
> [    8.116000] r00-03  000000000806000e 0000000040686fa0 0000000040182c6c 000000004058d020
> [    8.120000] r04-07  0000000040668fa0 000000004065e7c0 00000000404f7db0 000000r08-11  0000000040686fa0 000000004065e7c0 0000000000000000 00000000406797a0
> [    8.644000] r12-15  0000000000000001 0000000000000001 0000000000000000 0000000000000001
> [    8.776000] r16-19  00000000f00003b0 0000000040686fa0 000000012f87cb40 00000000406d6000
> [    8.784000] r20-23  0000000000000000 00000000406d6000 ffffffffffffffff 0000000000000001
> [    8.788000] r24-27  0000000000000000 000000004065e7c0 00000000404f7db0 0000000040668fa0
> [    8.796000] r28-31  0000000000000000 000000012f880490 000000012f880580 0000000000000000
> [    8sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> [    9.208000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> [    9.340000] 
> [    9.340000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401829b4 00000000401829b8
> [    9.348000]  IIR: 03ffe01f    ISR: 0000000010240000  IOR: 0000000179de7d0c
> [    9.356000]  CPU:        0   CR30: 000000012f880000 CR31: 0000000000008020
> [    9.360000]  ORIG_R28: 000000000800000e
> [    9.364000]  mp_call_function_many+0x7c/0x2f8
> [    9.768000]  IAOQ[1]: smp_call_function_many+0x80/0x2f8
> [    9.796000]  RP(r2): smp_call_function+0x3c/0x50
> [    9.800000] Backtrace:
> [    9.804000] Backtrace:
> [    9.804000]  [<0000000040115fe8>] printk+0x40/0x50
> [    9.804000]  [<0000000040152760>] print_tainted+0xc0/0xe0
> [    9.804000]  [<0000000040104084>] intr_check_sig+0x0/0x38
> [    9.804000]  [<0000000040104074>] intr_return+0x0/0x4
> [    9.804000]  [<0000000040182c6c>] smp_call_function+0x3c/0x50
> [    9.804000]  [<0000000040159d08>] on_each_cpu+0x28/0x68
> [    9.804000]  [<000000004011b92c>] free_initmem+0x94/0x340
> 
> Is there a guide "HowTo read kernel debug log"?

Not really - the best guide is the PA2.0 Instruction Set Manual:
    http://ftp.parisc-linux.org/docs/arch/parisc2.0.pdf

This describes pretty nicely all the registers that are
printed in the dump.

> What mean the numbers behind the function names?
> 
> [<memory adress>] function name + 0x*/0x*

IIRC, it's the offset and function length...but I'm not sure
about the second value after the function name.

cheers,
grant
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From - Thu Nov 08 21:04:44 2018
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> 
>> [    7.988000] Freeing unused kernel memory: <0>------------[ cut here ]------------
>> [    8.096000] Badness at /build/buildd/linux-2.6-2.6.30/debian/build/source_hppa_none/kernel/smp.c:369
>> [    8.104000] 
>> [    8.104000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>> [    8.108000] PSW: 00001000000001100000000000001110 Not tainted
>> [    8.116000] r00-03  000000000806000e 0000000040686fa0 0000000040182c6c 000000004058d020
>> [    8.120000] r04-07  0000000040668fa0 000000004065e7c0 00000000404f7db0 000000r08-11  0000000040686fa0 000000004065e7c0 0000000000000000 00000000406797a0
>> [    8.644000] r12-15  0000000000000001 0000000000000001 0000000000000000 0000000000000001
>> [    8.776000] r16-19  00000000f00003b0 0000000040686fa0 000000012f87cb40 00000000406d6000
>> [    8.784000] r20-23  0000000000000000 00000000406d6000 ffffffffffffffff 0000000000000001
>> [    8.788000] r24-27  0000000000000000 000000004065e7c0 00000000404f7db0 0000000040668fa0
>> [    8.796000] r28-31  0000000000000000 000000012f880490 000000012f880580 0000000000000000
>> [    8sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
>> [    9.208000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
>> [    9.340000] 
>> [    9.340000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401829b4 00000000401829b8
>> [    9.348000]  IIR: 03ffe01f    ISR: 0000000010240000  IOR: 0000000179de7d0c
>> [    9.356000]  CPU:        0   CR30: 000000012f880000 CR31: 0000000000008020
>> [    9.360000]  ORIG_R28: 000000000800000e
>> [    9.364000]  mp_call_function_many+0x7c/0x2f8
>> [    9.768000]  IAOQ[1]: smp_call_function_many+0x80/0x2f8
>> [    9.796000]  RP(r2): smp_call_function+0x3c/0x50
>> [    9.800000] Backtrace:
>> [    9.804000] Backtrace:
>> [    9.804000]  [<0000000040115fe8>] printk+0x40/0x50
>> [    9.804000]  [<0000000040152760>] print_tainted+0xc0/0xe0
>> [    9.804000]  [<0000000040104084>] intr_check_sig+0x0/0x38
>> [    9.804000]  [<0000000040104074>] intr_return+0x0/0x4
>> [    9.804000]  [<0000000040182c6c>] smp_call_function+0x3c/0x50
>> [    9.804000]  [<0000000040159d08>] on_each_cpu+0x28/0x68
>> [    9.804000]  [<000000004011b92c>] free_initmem+0x94/0x340
>>
>> Is there a guide "HowTo read kernel debug log"?
> 
> Not really - the best guide is the PA2.0 Instruction Set Manual:
>     http://ftp.parisc-linux.org/docs/arch/parisc2.0.pdf


> This describes pretty nicely all the registers that are
> printed in the dump.
> 
>> What mean the numbers behind the function names?
>>
>> [<memory adress>] function name + 0x*/0x*
> 
> IIRC, it's the offset and function length...but I'm not sure
> about the second value after the function name.

Yes, you are right. Although in this case the backtrace looks a bit 
inconsistent.

According to the register dump, the kernel triggered a warning ("Badness 
at. ..") which is on the line smp.c:369. The instruction that caused the 
dump is smp_call_function_many+0x7c. This function is 0x2f8 bytes long.

As others have pointed out this smp dump appears to be "harmless" and 
may not be the real culprit of the problems you are seeing.

Is there another error message further on? Your URL doesn't work for me 
either.

randolph
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From - Thu Nov 08 21:04:44 2018
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From: Thibaut VARENE <T-Bone@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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	 <4A724818.4080909@tausq.org>
	 <Pine.SOC.4.64.0907310923520.710@math.ut.ee>
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	 <20090807162242.GA18373@lackof.org>
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Cc: Bernd Gietzelt <berndg@fsim-ev.de>,
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To: Randolph Chung <randolph@tausq.org>
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On Mon, Aug 10, 2009 at 3:22 AM, Randolph Chung<randolph@tausq.org> wro=
te:
>>
>>> [ =C2=A0 =C2=A07.988000] Freeing unused kernel memory: <0>---------=
---[ cut here
>>> ]------------
>>> [ =C2=A0 =C2=A08.096000] Badness at
>>> /build/buildd/linux-2.6-2.6.30/debian/build/source_hppa_none/kernel=
/smp.c:369
>>> [ =C2=A0 =C2=A08.104000] [ =C2=A0 =C2=A08.104000] =C2=A0 =C2=A0 =C2=
=A0YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>> [ =C2=A0 =C2=A08.108000] PSW: 00001000000001100000000000001110 Not =
tainted
>>> [ =C2=A0 =C2=A08.116000] r00-03 =C2=A0000000000806000e 000000004068=
6fa0 0000000040182c6c
>>> 000000004058d020
>>> [ =C2=A0 =C2=A08.120000] r04-07 =C2=A00000000040668fa0 000000004065=
e7c0 00000000404f7db0
>>> 000000r08-11 =C2=A00000000040686fa0 000000004065e7c0 00000000000000=
00
>>> 00000000406797a0
>>> [ =C2=A0 =C2=A08.644000] r12-15 =C2=A00000000000000001 000000000000=
0001 0000000000000000
>>> 0000000000000001
>>> [ =C2=A0 =C2=A08.776000] r16-19 =C2=A000000000f00003b0 000000004068=
6fa0 000000012f87cb40
>>> 00000000406d6000
>>> [ =C2=A0 =C2=A08.784000] r20-23 =C2=A00000000000000000 00000000406d=
6000 ffffffffffffffff
>>> 0000000000000001
>>> [ =C2=A0 =C2=A08.788000] r24-27 =C2=A00000000000000000 000000004065=
e7c0 00000000404f7db0
>>> 0000000040668fa0
>>> [ =C2=A0 =C2=A08.796000] r28-31 =C2=A00000000000000000 000000012f88=
0490 000000012f880580
>>> 0000000000000000
>>> [ =C2=A0 =C2=A08sr00-03 =C2=A00000000000000000 0000000000000000 000=
0000000000000
>>> 0000000000000000
>>> [ =C2=A0 =C2=A09.208000] sr04-07 =C2=A00000000000000000 00000000000=
00000
>>> 0000000000000000 0000000000000000
>>> [ =C2=A0 =C2=A09.340000] [ =C2=A0 =C2=A09.340000] IASQ: 00000000000=
00000 0000000000000000
>>> IAOQ: 00000000401829b4 00000000401829b8
>>> [ =C2=A0 =C2=A09.348000] =C2=A0IIR: 03ffe01f =C2=A0 =C2=A0ISR: 0000=
000010240000 =C2=A0IOR:
>>> 0000000179de7d0c
>>> [ =C2=A0 =C2=A09.356000] =C2=A0CPU: =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=
=A0 CR30: 000000012f880000 CR31:
>>> 0000000000008020
>>> [ =C2=A0 =C2=A09.360000] =C2=A0ORIG_R28: 000000000800000e
>>> [ =C2=A0 =C2=A09.364000] =C2=A0mp_call_function_many+0x7c/0x2f8
>>> [ =C2=A0 =C2=A09.768000] =C2=A0IAOQ[1]: smp_call_function_many+0x80=
/0x2f8
>>> [ =C2=A0 =C2=A09.796000] =C2=A0RP(r2): smp_call_function+0x3c/0x50
>>> [ =C2=A0 =C2=A09.800000] Backtrace:
>>> [ =C2=A0 =C2=A09.804000] Backtrace:
>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<0000000040115fe8>] printk+0x40/0x5=
0
>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<0000000040152760>] print_tainted+0=
xc0/0xe0
>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<0000000040104084>] intr_check_sig+=
0x0/0x38
>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<0000000040104074>] intr_return+0x0=
/0x4
>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<0000000040182c6c>] smp_call_functi=
on+0x3c/0x50
>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<0000000040159d08>] on_each_cpu+0x2=
8/0x68
>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<000000004011b92c>] free_initmem+0x=
94/0x340
>>>

> As others have pointed out this smp dump appears to be "harmless" and=
 may
> not be the real culprit of the problems you are seeing.
>
> Is there another error message further on? Your URL doesn't work for =
me
> either.

=46or the sake of reliability I've put a (temporary) static copy of the=
 page here:
http://www.pateam.org/archive/tmp/serrparitylogs.html
It still links to the original URL for CSS and stuff, but at least the
logs are there.

=46WIW, the above dump is not the final message, from what can be seen
of the other dumps. As a matter of fact, it happens way before the
actual crash, which is triggered by loading drivers (SYM, afaict).
Output is garbled by GSP, and it seems to me that the dump with
pdcchassis=3D0 is truncated. Could the author post a full dump of the
boot log with pdcchassis=3D0 please? (and maybe use pastebin? ;-)

HTH

T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:04:44 2018
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From: Thibaut VARENE <T-Bone@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPPA hang with PCI SERR or PARITY enabling
Date: Mon, 10 Aug 2009 10:09:36 +0200
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	 <Pine.SOC.4.64.0907310923520.710@math.ut.ee>
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Cc: Bernd Gietzelt <berndg@fsim-ev.de>,
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To: Randolph Chung <randolph@tausq.org>
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On Mon, Aug 10, 2009 at 10:01 AM, Thibaut VARENE<T-Bone@parisc-linux.or=
g> wrote:
> On Mon, Aug 10, 2009 at 3:22 AM, Randolph Chung<randolph@tausq.org> w=
rote:
>>>
>>>> [ =C2=A0 =C2=A07.988000] Freeing unused kernel memory: <0>--------=
----[ cut here
>>>> ]------------
>>>> [ =C2=A0 =C2=A08.096000] Badness at
>>>> /build/buildd/linux-2.6-2.6.30/debian/build/source_hppa_none/kerne=
l/smp.c:369
>>>> [ =C2=A0 =C2=A08.104000] [ =C2=A0 =C2=A08.104000] =C2=A0 =C2=A0 =C2=
=A0YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>>> [ =C2=A0 =C2=A08.108000] PSW: 00001000000001100000000000001110 Not=
 tainted
>>>> [ =C2=A0 =C2=A08.116000] r00-03 =C2=A0000000000806000e 00000000406=
86fa0 0000000040182c6c
>>>> 000000004058d020
>>>> [ =C2=A0 =C2=A08.120000] r04-07 =C2=A00000000040668fa0 00000000406=
5e7c0 00000000404f7db0
>>>> 000000r08-11 =C2=A00000000040686fa0 000000004065e7c0 0000000000000=
000
>>>> 00000000406797a0
>>>> [ =C2=A0 =C2=A08.644000] r12-15 =C2=A00000000000000001 00000000000=
00001 0000000000000000
>>>> 0000000000000001
>>>> [ =C2=A0 =C2=A08.776000] r16-19 =C2=A000000000f00003b0 00000000406=
86fa0 000000012f87cb40
>>>> 00000000406d6000
>>>> [ =C2=A0 =C2=A08.784000] r20-23 =C2=A00000000000000000 00000000406=
d6000 ffffffffffffffff
>>>> 0000000000000001
>>>> [ =C2=A0 =C2=A08.788000] r24-27 =C2=A00000000000000000 00000000406=
5e7c0 00000000404f7db0
>>>> 0000000040668fa0
>>>> [ =C2=A0 =C2=A08.796000] r28-31 =C2=A00000000000000000 000000012f8=
80490 000000012f880580
>>>> 0000000000000000
>>>> [ =C2=A0 =C2=A08sr00-03 =C2=A00000000000000000 0000000000000000 00=
00000000000000
>>>> 0000000000000000
>>>> [ =C2=A0 =C2=A09.208000] sr04-07 =C2=A00000000000000000 0000000000=
000000
>>>> 0000000000000000 0000000000000000
>>>> [ =C2=A0 =C2=A09.340000] [ =C2=A0 =C2=A09.340000] IASQ: 0000000000=
000000 0000000000000000
>>>> IAOQ: 00000000401829b4 00000000401829b8
>>>> [ =C2=A0 =C2=A09.348000] =C2=A0IIR: 03ffe01f =C2=A0 =C2=A0ISR: 000=
0000010240000 =C2=A0IOR:
>>>> 0000000179de7d0c
>>>> [ =C2=A0 =C2=A09.356000] =C2=A0CPU: =C2=A0 =C2=A0 =C2=A0 =C2=A00 =C2=
=A0 CR30: 000000012f880000 CR31:
>>>> 0000000000008020
>>>> [ =C2=A0 =C2=A09.360000] =C2=A0ORIG_R28: 000000000800000e
>>>> [ =C2=A0 =C2=A09.364000] =C2=A0mp_call_function_many+0x7c/0x2f8
>>>> [ =C2=A0 =C2=A09.768000] =C2=A0IAOQ[1]: smp_call_function_many+0x8=
0/0x2f8
>>>> [ =C2=A0 =C2=A09.796000] =C2=A0RP(r2): smp_call_function+0x3c/0x50
>>>> [ =C2=A0 =C2=A09.800000] Backtrace:
>>>> [ =C2=A0 =C2=A09.804000] Backtrace:
>>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<0000000040115fe8>] printk+0x40/0x=
50
>>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<0000000040152760>] print_tainted+=
0xc0/0xe0
>>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<0000000040104084>] intr_check_sig=
+0x0/0x38
>>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<0000000040104074>] intr_return+0x=
0/0x4
>>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<0000000040182c6c>] smp_call_funct=
ion+0x3c/0x50
>>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<0000000040159d08>] on_each_cpu+0x=
28/0x68
>>>> [ =C2=A0 =C2=A09.804000] =C2=A0[<000000004011b92c>] free_initmem+0=
x94/0x340
>>>>
>
>> As others have pointed out this smp dump appears to be "harmless" an=
d may
>> not be the real culprit of the problems you are seeing.
>>
>> Is there another error message further on? Your URL doesn't work for=
 me
>> either.
>
> For the sake of reliability I've put a (temporary) static copy of the=
 page here:
> http://www.pateam.org/archive/tmp/serrparitylogs.html
> It still links to the original URL for CSS and stuff, but at least th=
e
> logs are there.
>
> FWIW, the above dump is not the final message, from what can be seen
> of the other dumps. As a matter of fact, it happens way before the
> actual crash, which is triggered by loading drivers (SYM, afaict).
> Output is garbled by GSP, and it seems to me that the dump with
> pdcchassis=3D0 is truncated. Could the author post a full dump of the
> boot log with pdcchassis=3D0 please? (and maybe use pastebin? ;-)

Bummer, I've been reading the logs a bit too quickly. It seems we have
two different problems here:

2.6.30-1-64smp doesn't boot (apparently doesn't load init, hangs after
the badness in smp.c message)
2.6.30-1-64up crashes while loading PCI drivers

A log of the up kernel with pdcchassis=3D0 would thus be helpful.

HTH

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From: Bernd Gietzelt <berndg@fsim-ev.de>
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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On Mon, 10 Aug 2009 10:01:32 +0200
Thibaut VARENE <T-Bone@parisc-linux.org> wrote:

> On Mon, Aug 10, 2009 at 3:22 AM, Randolph Chung<randolph@tausq.org>
> wrote:
> >>
> >>> [ =A0 =A07.988000] Freeing unused kernel memory: <0>------------[=
 cut
> >>> here ]------------
> >>> [ =A0 =A08.096000] Badness at
> >>> /build/buildd/linux-2.6-2.6.30/debian/build/source_hppa_none/kern=
el/smp.c:369
> >>> [ =A0 =A08.104000] [ =A0 =A08.104000]
> >>> =A0YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI [ =A0 =A08.108000] PSW:
> >>> 00001000000001100000000000001110 Not tainted [ =A0 =A08.116000]
> >>> r00-03 =A0000000000806000e 0000000040686fa0 0000000040182c6c
> >>> 000000004058d020 [ =A0 =A08.120000] r04-07 =A00000000040668fa0
> >>> 000000004065e7c0 00000000404f7db0 000000r08-11 =A00000000040686fa=
0
> >>> 000000004065e7c0 0000000000000000 00000000406797a0
> >>> [ =A0 =A08.644000] r12-15 =A00000000000000001 0000000000000001
> >>> 0000000000000000 0000000000000001
> >>> [ =A0 =A08.776000] r16-19 =A000000000f00003b0 0000000040686fa0
> >>> 000000012f87cb40 00000000406d6000
> >>> [ =A0 =A08.784000] r20-23 =A00000000000000000 00000000406d6000
> >>> ffffffffffffffff 0000000000000001
> >>> [ =A0 =A08.788000] r24-27 =A00000000000000000 000000004065e7c0
> >>> 00000000404f7db0 0000000040668fa0
> >>> [ =A0 =A08.796000] r28-31 =A00000000000000000 000000012f880490
> >>> 000000012f880580 0000000000000000
> >>> [ =A0 =A08sr00-03 =A00000000000000000 0000000000000000 0000000000=
000000
> >>> 0000000000000000
> >>> [ =A0 =A09.208000] sr04-07 =A00000000000000000 0000000000000000
> >>> 0000000000000000 0000000000000000
> >>> [ =A0 =A09.340000] [ =A0 =A09.340000] IASQ: 0000000000000000
> >>> 0000000000000000 IAOQ: 00000000401829b4 00000000401829b8
> >>> [ =A0 =A09.348000] =A0IIR: 03ffe01f =A0 =A0ISR: 0000000010240000 =
=A0IOR:
> >>> 0000000179de7d0c
> >>> [ =A0 =A09.356000] =A0CPU: =A0 =A0 =A0 =A00 =A0 CR30: 000000012f8=
80000 CR31:
> >>> 0000000000008020
> >>> [ =A0 =A09.360000] =A0ORIG_R28: 000000000800000e
> >>> [ =A0 =A09.364000] =A0mp_call_function_many+0x7c/0x2f8
> >>> [ =A0 =A09.768000] =A0IAOQ[1]: smp_call_function_many+0x80/0x2f8
> >>> [ =A0 =A09.796000] =A0RP(r2): smp_call_function+0x3c/0x50
> >>> [ =A0 =A09.800000] Backtrace:
> >>> [ =A0 =A09.804000] Backtrace:
> >>> [ =A0 =A09.804000] =A0[<0000000040115fe8>] printk+0x40/0x50
> >>> [ =A0 =A09.804000] =A0[<0000000040152760>] print_tainted+0xc0/0xe=
0
> >>> [ =A0 =A09.804000] =A0[<0000000040104084>] intr_check_sig+0x0/0x3=
8
> >>> [ =A0 =A09.804000] =A0[<0000000040104074>] intr_return+0x0/0x4
> >>> [ =A0 =A09.804000] =A0[<0000000040182c6c>] smp_call_function+0x3c=
/0x50
> >>> [ =A0 =A09.804000] =A0[<0000000040159d08>] on_each_cpu+0x28/0x68
> >>> [ =A0 =A09.804000] =A0[<000000004011b92c>] free_initmem+0x94/0x34=
0
> >
> > Is there another error message further on?=20

No. Nothing. After that point the system give no further messages.
Someone noted it looks like a deadlock.

> For the sake of reliability I've put a (temporary) static copy of the

Thank you for that.

> FWIW, the above dump is not the final message, from what can be seen
> of the other dumps. As a matter of fact, it happens way before the
> actual crash, which is triggered by loading drivers (SYM, afaict).
> Output is garbled by GSP, and it seems to me that the dump with
> pdcchassis=3D0 is truncated. Could the author post a full dump of the
> boot log with pdcchassis=3D0 please? (and maybe use pastebin? ;-)

http://www.pateam.org/archive/tmp/serrparitylogs.html#kernel_2.6.30-1-p=
arisc64-smp
is a full dump of the boot log.

I've blacklisted the tulip kernel module but this doesn't change the
behavior. I'll try a custom kernel without all these driver.

cheers,
bernd

--=20
Bernd Gietzelt <berndg@fsim-ev.de>
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From: Bernd Gietzelt <berndg@fsim-ev.de>
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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On Mon, 10 Aug 2009 10:09:36 +0200
Thibaut VARENE <T-Bone@parisc-linux.org> wrote:

> Bummer, I've been reading the logs a bit too quickly. It seems we have
> two different problems here:
> 
> 2.6.30-1-64smp doesn't boot (apparently doesn't load init, hangs after
> the badness in smp.c message)
> 2.6.30-1-64up crashes while loading PCI drivers
> 
> A log of the up kernel with pdcchassis=0 would thus be helpful.

http://pastebin.com/m2a494b9b

I couldn't see any difference to the log without pdcchassis=0.



-- 
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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On Mon, Aug 10, 2009 at 1:08 PM, Bernd Gietzelt<berndg@fsim-ev.de> wrote:
> On Mon, 10 Aug 2009 10:09:36 +0200
> Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
>
>> Bummer, I've been reading the logs a bit too quickly. It seems we have
>> two different problems here:
>>
>> 2.6.30-1-64smp doesn't boot (apparently doesn't load init, hangs after
>> the badness in smp.c message)
>> 2.6.30-1-64up crashes while loading PCI drivers
>>
>> A log of the up kernel with pdcchassis=0 would thus be helpful.
>
> http://pastebin.com/m2a494b9b
>
> I couldn't see any difference to the log without pdcchassis=0.

The final output of GSP is probably due to a HPMC. Could you check in
GSP "CL" command (for Console Logs) that there is no more kernel
output after line 218 in your dump?

Thanks

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On Mon, 10 Aug 2009 13:18:51 +0200
Thibaut VARENE <T-Bone@parisc-linux.org> wrote:

> >> 2.6.30-1-64up crashes while loading PCI drivers
> >> A log of the up kernel with pdcchassis=0 would thus be helpful.
> > http://pastebin.com/m2a494b9b
> > I couldn't see any difference to the log without pdcchassis=0.
> The final output of GSP is probably due to a HPMC. Could you check in
> GSP "CL" command (for Console Logs) that there is no more kernel
> output after line 218 in your dump?

No more lines. Sorry!

CL output: http://pastebin.com/m23ab8814
SER PIM output: http://pastebin.com/m197f93cf

-- 
Bernd Gietzelt <berndg@fsim-ev.de>
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On Mon, Aug 10, 2009 at 01:08:27PM +0200, Bernd Gietzelt wrote:
> On Mon, 10 Aug 2009 10:09:36 +0200
> Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> 
> > Bummer, I've been reading the logs a bit too quickly. It seems we have
> > two different problems here:
> > 
> > 2.6.30-1-64smp doesn't boot (apparently doesn't load init, hangs after
> > the badness in smp.c message)
> > 2.6.30-1-64up crashes while loading PCI drivers
> > 
> > A log of the up kernel with pdcchassis=0 would thus be helpful.
> 
> http://pastebin.com/m2a494b9b
> 
> I couldn't see any difference to the log without pdcchassis=0.

Yeah, wierd....I must be misremembering then.

In any case, the HPMC occurs on the first none-zero numbered Sym2 device:
sym53c8xx 0000:00:01.0: enabling device (0000 -> 0003)  is OK
sym53c8xx 0000:00:01.1: enabling device (0146 -> 0147)  is OK
sym53c8xx 0000:00:02.0: enabling device (0000 -> 0003)  is OK
sym53c8xx 0000:00:02.1: enabling device (0000 -> 0003)  is OK
sym53c8xx 0000:30:00.0: enabling device (0000 -> 0003)  seems to be OK
sym53c8xx 0000:38:00.0: enabling device (0000 -> 0003) HPMCs?

The second cards seems to be the culprit though there are
two add-on cards in the machine (I was expecting both to
fail in similar ways).

I saw you included the PIM dump with a later console capture
but I won't have time this week to look at it. :(
This PIM dump should confirm if we had problems accessing MMIO
space and which device (should) owns that space.

thanks,
grant

> 
> 
> 
> -- 
> Bernd Gietzelt <berndg@fsim-ev.de>
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On Tue, Aug 11, 2009 at 1:20 AM, Grant
Grundler<grundler@parisc-linux.org> wrote:
> On Mon, Aug 10, 2009 at 01:08:27PM +0200, Bernd Gietzelt wrote:
>> On Mon, 10 Aug 2009 10:09:36 +0200
>> Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
>>
>> > Bummer, I've been reading the logs a bit too quickly. It seems we have
>> > two different problems here:
>> >
>> > 2.6.30-1-64smp doesn't boot (apparently doesn't load init, hangs after
>> > the badness in smp.c message)
>> > 2.6.30-1-64up crashes while loading PCI drivers
>> >
>> > A log of the up kernel with pdcchassis=0 would thus be helpful.
>>
>> http://pastebin.com/m2a494b9b
>>
>> I couldn't see any difference to the log without pdcchassis=0.
>
> Yeah, wierd....I must be misremembering then.

No you're not and yes there are differences: without pdcchassis=0 you
have the "system initialization" GSP messages throughout the boot log.
The final message from the GSP is, as I pointed out, unrelated to the
pdcchassis driver, it's triggered directly by hardware.

HTH

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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hey,
 While testing a 2.6.31-rc5-based snapshot of the Debian kernel
builds, I hit this build failure:

/home/dannf/linux-2.6-2.6.31~rc5/debian/build/source_hppa_none/drivers/mfd/ab3100-core.c:563:
warning: initialization from incompatible pointer type
/home/dannf/linux-2.6-2.6.31~rc5/debian/build/source_hppa_none/drivers/mfd/ab3100-core.c:647:
error: ab3100_init_settings causes a section type conflict

Same source/compiler seems to build fine on other archs.
-- 
dann frazier

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From - Thu Nov 08 21:04:45 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: hppa64 gcc ICE building linux-2.6.31-rc5
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Carlos, Dave,
Just got this after updating gsyprf11 and trying to build
linux-2.6.31-rc5 using .config provided by dannf.

grundler <534>uname -a
Linux gsyprf11 2.6.22.19 #5 SMP Tue Aug 4 17:16:18 PDT 2009 parisc64 GNU/Linux
grundler <535>make 
...
  CC [M]  fs/xfs/xfs_iomap.o
fs/xfs/xfs_iomap.c: In function 'xfs_iomap_write_delay':
fs/xfs/xfs_iomap.c:648: error: insn does not satisfy its constraints:
(insn 331 99 103 12 fs/xfs/xfs_iomap.c:599 (set (reg:QI 60 SAR)
        (mem/c:QI (plus:DI (reg/f:DI 30 %r30)
                (const_int -273 [0xfffffffffffffeef])) [0 %sfp+191 S1 A128])) 101 {*pa.md:3318} (nil))
fs/xfs/xfs_iomap.c:648: internal compiler error: in reload_cse_simplify_operands, at postreload.c:396
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[2]: *** [fs/xfs/xfs_iomap.o] Error 1
make[1]: *** [fs/xfs] Error 2
make: *** [fs] Error 2

I'll not touch the source tree on gsyprf11:/usr/src/linux-2.6 until either
of you can look at it. (No hurry...just letting you know where to look).

thanks,
grant
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Subject: Re: ab3100_core.c fails to build w/ gcc-4.3.3 on hppa
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2009/8/11 dann frazier <dannf@debian.org>:

> hey,
> =A0While testing a 2.6.31-rc5-based snapshot of the Debian kernel
> builds, I hit this build failure:
>
> /home/dannf/linux-2.6-2.6.31~rc5/debian/build/source_hppa_none/driver=
s/mfd/ab3100-core.c:563:
> warning: initialization from incompatible pointer type

I think I have fixed this problem atleast.

> /home/dannf/linux-2.6-2.6.31~rc5/debian/build/source_hppa_none/driver=
s/mfd/ab3100-core.c:647:
> error: ab3100_init_settings causes a section type conflict

Still wandering in darkness about this one :-(
The init_settings are __initdata and the function using it is __init,
I don't get it...

> Same source/compiler seems to build fine on other archs.

Never saw it anywhere else. Is there something special in the parisc li=
nkfile?

Linus Walleij
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From - Thu Nov 08 21:04:45 2018
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Subject: Re: hppa64 gcc ICE building linux-2.6.31-rc5
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To: grundler@parisc-linux.org (Grant Grundler)
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Hi Grant,

Can you try again switching the alternative 4.4?  I think it currently
points to 4.2.  There are significant changes in this area in 4.3 and 4.4.

The GCC 4.2 tree  is dead.

Dave

> Carlos, Dave,
> Just got this after updating gsyprf11 and trying to build
> linux-2.6.31-rc5 using .config provided by dannf.
> 
> grundler <534>uname -a
> Linux gsyprf11 2.6.22.19 #5 SMP Tue Aug 4 17:16:18 PDT 2009 parisc64 GNU/Linux
> grundler <535>make 
> ...
>   CC [M]  fs/xfs/xfs_iomap.o
> fs/xfs/xfs_iomap.c: In function 'xfs_iomap_write_delay':
> fs/xfs/xfs_iomap.c:648: error: insn does not satisfy its constraints:
> (insn 331 99 103 12 fs/xfs/xfs_iomap.c:599 (set (reg:QI 60 SAR)
>         (mem/c:QI (plus:DI (reg/f:DI 30 %r30)
>                 (const_int -273 [0xfffffffffffffeef])) [0 %sfp+191 S1 A128])) 101 {*pa.md:3318} (nil))
> fs/xfs/xfs_iomap.c:648: internal compiler error: in reload_cse_simplify_operands, at postreload.c:396
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <http://gcc.gnu.org/bugs.html> for instructions.
> make[2]: *** [fs/xfs/xfs_iomap.o] Error 1
> make[1]: *** [fs/xfs] Error 2
> make: *** [fs] Error 2
> 
> I'll not touch the source tree on gsyprf11:/usr/src/linux-2.6 until either
> of you can look at it. (No hurry...just letting you know where to look).
> 
> thanks,
> grant
> 


-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:45 2018
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anyone else seeing this with 2.6.31-rc6 ?

<...system boots up...>
Waiting for /dev to be fully populated...
  
sysfs: cannot create duplicate filename '/module/ac97_bus/sections/.text'
------------[ cut here ]------------
Badness at fs/sysfs/dir.c:487
  
      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111 Not tainted
r00-03  0004000f 10669bd0 10204ff8 7ce58340
r04-07  7efcd000 ffffffef 7f881d74 7efcd000
r08-11  0008746c 00000000 7f1c6400 0008441c
r12-15  00000019 00084332 105a96c8 00000124
r16-19  0000fff1 00000017 00084abc ffffffff
r20-23  7eeff080 00000060 102f5898 10330dec
r24-27  ffffffff 0000000e 10669c04 10656670
r28-31  00000050 00000190 7ce583c0 10123988
sr00-03  00000000 00000000 00000000 00000008
sr04-07  00000000 00000000 00000000 00000000
  
IASQ: 00000000 00000000 IAOQ: 10204ff8 10204ffc
  IIR: 03ffe01f    ISR: 00000000  IOR: 00000000
  CPU:        0   CR30: 7ce58000 CR31: 11111111
  ORIG_R28: 00000001
  IAOQ[0]: sysfs_add_one+0xb8/0xd0
  IAOQ[1]: sysfs_add_one+0xbc/0xd0
  RP(r2): sysfs_add_one+0xb8/0xd0
Backtrace:
  [<102045b8>] sysfs_add_file_mode+0x60/0xc4
  [<1020748c>] internal_create_group+0xf0/0x1d8
  
Backtrace:
  [<1016f0f0>] load_module+0x10e8/0x1294
  

Kernel Fault: Code=26 regs=7ce58200 (Addr=00000030)
  
      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001111 Tainted: G        W
r00-03  0006000f 7ce58200 1016f0f0 7ce58140
r04-07  00084444 00000019 00087424 7eddb660
r08-11  00084000 00000001 7f1c66a4 0008441c
r12-15  00000019 00084332 105a96c8 00000124
r16-19  0000fff1 00000017 00084abc 00000000
r20-23  00000000 1016d3e0 7eddb668 00000124
r24-27  105a96cc 00000000 7eddb660 10656670
r28-31  00000000 00000001 7ce58200 00000000
sr00-03  00000000 00000000 00000000 00000008
sr04-07  00000000 00000000 00000000 00000000
  
IASQ: 00000000 00000000 IAOQ: 1016f130 1016f134
  IIR: 4b940060    ISR: 00000000  IOR: 00000030
  CPU:        0   CR30: 7ce58000 CR31: 11111111
  ORIG_R28: 00084332
  IAOQ[0]: load_module+0x1128/0x1294
  IAOQ[1]: load_module+0x112c/0x1294
  RP(r2): load_module+0x10e8/0x1294
Backtrace:
  [<1016f0f0>] load_module+0x10e8/0x1294
  
Kernel panic - not syncing: Kernel Fault
Backtrace:
  [<1011ac28>] show_stack+0x18/0x28
  [<1013f3a0>] vprintk+0x19c/0x430
  
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From - Thu Nov 08 21:04:45 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: kernel segv with 2.6.31-rc6 ?
Date: Mon, 17 Aug 2009 22:49:36 +0000
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Cc: linux-parisc <linux-parisc@vger.kernel.org>,
	Roland McGrath <roland@redhat.com>,
	linux-kernel <linux-kernel@vger.kernel.org>
To: Helge Deller <deller@gmx.de>
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On Mon, 2009-08-17 at 23:31 +0200, Helge Deller wrote:
> anyone else seeing this with 2.6.31-rc6 ?
> 
> <...system boots up...>
> Waiting for /dev to be fully populated...
>   
> sysfs: cannot create duplicate filename '/module/ac97_bus/sections/.text'
> ------------[ cut here ]------------
> Badness at fs/sysfs/dir.c:487
>   
>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001111 Not tainted
> r00-03  0004000f 10669bd0 10204ff8 7ce58340
> r04-07  7efcd000 ffffffef 7f881d74 7efcd000
> r08-11  0008746c 00000000 7f1c6400 0008441c
> r12-15  00000019 00084332 105a96c8 00000124
> r16-19  0000fff1 00000017 00084abc ffffffff
> r20-23  7eeff080 00000060 102f5898 10330dec
> r24-27  ffffffff 0000000e 10669c04 10656670
> r28-31  00000050 00000190 7ce583c0 10123988
> sr00-03  00000000 00000000 00000000 00000008
> sr04-07  00000000 00000000 00000000 00000000
>   
> IASQ: 00000000 00000000 IAOQ: 10204ff8 10204ffc
>   IIR: 03ffe01f    ISR: 00000000  IOR: 00000000
>   CPU:        0   CR30: 7ce58000 CR31: 11111111
>   ORIG_R28: 00000001
>   IAOQ[0]: sysfs_add_one+0xb8/0xd0
>   IAOQ[1]: sysfs_add_one+0xbc/0xd0
>   RP(r2): sysfs_add_one+0xb8/0xd0
> Backtrace:
>   [<102045b8>] sysfs_add_file_mode+0x60/0xc4
>   [<1020748c>] internal_create_group+0xf0/0x1d8
>   
> Backtrace:
>   [<1016f0f0>] load_module+0x10e8/0x1294
>   
> 
> Kernel Fault: Code=26 regs=7ce58200 (Addr=00000030)
>   
>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001100000000000001111 Tainted: G        W
> r00-03  0006000f 7ce58200 1016f0f0 7ce58140
> r04-07  00084444 00000019 00087424 7eddb660
> r08-11  00084000 00000001 7f1c66a4 0008441c
> r12-15  00000019 00084332 105a96c8 00000124
> r16-19  0000fff1 00000017 00084abc 00000000
> r20-23  00000000 1016d3e0 7eddb668 00000124
> r24-27  105a96cc 00000000 7eddb660 10656670
> r28-31  00000000 00000001 7ce58200 00000000
> sr00-03  00000000 00000000 00000000 00000008
> sr04-07  00000000 00000000 00000000 00000000
>   
> IASQ: 00000000 00000000 IAOQ: 1016f130 1016f134
>   IIR: 4b940060    ISR: 00000000  IOR: 00000030
>   CPU:        0   CR30: 7ce58000 CR31: 11111111
>   ORIG_R28: 00084332
>   IAOQ[0]: load_module+0x1128/0x1294
>   IAOQ[1]: load_module+0x112c/0x1294
>   RP(r2): load_module+0x10e8/0x1294
> Backtrace:
>   [<1016f0f0>] load_module+0x10e8/0x1294
>   
> Kernel panic - not syncing: Kernel Fault
> Backtrace:
>   [<1011ac28>] show_stack+0x18/0x28
>   [<1013f3a0>] vprintk+0x19c/0x430

The root cause is a duplicate section name (.text); is this legal?

However, there's a problem with commit
6d76013381ed28979cd122eb4b249a88b5e384fa in that if you fail to allocate
a mod->sect_attrs (in this case it's null because of the duplication),
it still gets used without checking in add_notes_attrs()

This should fix it

Signed-off-by: James Bottomley <James.Bottomley@suse.de>

---

diff --git a/kernel/module.c b/kernel/module.c
index fd14114..a703c49 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2353,7 +2353,8 @@ static noinline struct module *load_module(void __user *umod,
 	if (err < 0)
 		goto unlink;
 	add_sect_attrs(mod, hdr->e_shnum, secstrings, sechdrs);
-	add_notes_attrs(mod, hdr->e_shnum, secstrings, sechdrs);
+	if (mod->sect_attrs)
+		add_notes_attrs(mod, hdr->e_shnum, secstrings, sechdrs);
 
 	/* Get rid of temporary copy */
 	vfree(hdr);


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From - Thu Nov 08 21:04:45 2018
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Subject: Re: kernel segv with 2.6.31-rc6 ?
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> The root cause is a duplicate section name (.text); is this legal?

It's a complicated subject, but I don't think they should ever actually
exist in a .ko.  The linker script for making .ko's should take care of
that.  But if modules do some crazy things like using section groups
(e.g. for COMDAT, i.e. compile C++ code into modules) then I'm not sure how
easy it is to get ld to combine things ideally as we'd like.

Suffice it to say that any occurrence of this merits further investigation.
It is certainly a red flag at first blush (as it were).

> However, there's a problem with commit
> 6d76013381ed28979cd122eb4b249a88b5e384fa in that if you fail to allocate
> a mod->sect_attrs (in this case it's null because of the duplication),
> it still gets used without checking in add_notes_attrs()
> 
> This should fix it

Yes, good catch.  Sorry about that complete failure of defensive programming.

Acked-by: Roland McGrath <roland@redhat.com>


Thanks,
Roland
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From - Thu Nov 08 21:04:45 2018
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From: Rusty Russell <rusty@rustcorp.com.au>
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Subject: Re: kernel segv with 2.6.31-rc6 ?
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On Tue, 18 Aug 2009 08:19:36 am James Bottomley wrote:
> The root cause is a duplicate section name (.text); is this legal?

I'd be happy to fail to load it.  There might be sysfs issues with it
too.

> However, there's a problem with commit
> 6d76013381ed28979cd122eb4b249a88b5e384fa in that if you fail to allocate
> a mod->sect_attrs (in this case it's null because of the duplication),
> it still gets used without checking in add_notes_attrs()
> 
> This should fix it

No, the real problem is that it ignores failure.  I'd much rather fail
the module load than various features mysteriously MIA.

Which brings us to "patches which don't go thru the maintainer" (or
perhaps, non-responsive maintainers who get bypassed).

Thanks,
Rusty.
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Subject: Re: kernel segv with 2.6.31-rc6 ?
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On Tue, 2009-08-18 at 12:48 +0930, Rusty Russell wrote:
> On Tue, 18 Aug 2009 08:19:36 am James Bottomley wrote:
> > The root cause is a duplicate section name (.text); is this legal?
> 
> I'd be happy to fail to load it.  There might be sysfs issues with it
> too.

Well, that's why I want clarification.  The bad code has been in since
2007 so it looks like a recent change, probably the one to more default
linker scripts is the cause.

> > However, there's a problem with commit
> > 6d76013381ed28979cd122eb4b249a88b5e384fa in that if you fail to allocate
> > a mod->sect_attrs (in this case it's null because of the duplication),
> > it still gets used without checking in add_notes_attrs()
> > 
> > This should fix it
> 
> No, the real problem is that it ignores failure.  I'd much rather fail
> the module load than various features mysteriously MIA.

There are two separate problems.  One is why the the module has
duplicate sections.  Under my reading of the ELF spec, they seem to be
allowable ... however we control the linker scripts and I believe we
shouldn't have generated them.

The other is the missing error handling in the module loader.

The question of whether this is a generic failure that needs load
refusal or an expected artifact of our new linker scripts needs
investigating.

> Which brings us to "patches which don't go thru the maintainer" (or
> perhaps, non-responsive maintainers who get bypassed).

Well, the original code was in 2007, so it's probably a bit late for a
postmortem.

James


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> I'd be happy to fail to load it.  There might be sysfs issues with it too.

That sounds reasonable to me.  And I'd be happy to at least look a little
and maybe give some advice to anybody who finds themself building such a
(free) module, doesn't know why or how it got that way, and wants to ask.

> No, the real problem is that it ignores failure.  I'd much rather fail
> the module load than various features mysteriously MIA.

In that regard, I just made add_notes_attrs() follow the model of
add_sect_attrs(), which (gracefully) ignores all its failures.  I don't
know what the thought behind that was.  My only guess was that since this
is all CONFIG_KALLSYMS-only features, that someone thought turning on
CONFIG_KALLSYMS should not add new ways to lose that weren't there before,
only new ways to lose the new features that weren't there before either.
Having these other alloc/sysfs failures cause the module load to fail would
certainly be fine with me.


Thanks,
Roland
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Subject: Re: kernel segv with 2.6.31-rc6 ?
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[resending, fluffed reply-all]

On Mon, 2009-08-17 at 22:06 -0700, Roland McGrath wrote:
> > I'd be happy to fail to load it.  There might be sysfs issues with it too.
> 
> That sounds reasonable to me.  And I'd be happy to at least look a little
> and maybe give some advice to anybody who finds themself building such a
> (free) module, doesn't know why or how it got that way, and wants to ask.

Actually, for parisc, its not reasonable.  It's expected that our
modules have multiple text sections (we have to use -ffunction-sections
to generate them in order that the PCREL17 jump stubs can be
interleaved).

The problem looks to be that some linker error gave the one of the named
function text sections a duplicate name.  Helge, can you post he objdump
info that shows which section had a duplicate name?

Even with the duplicate name, though, the module should be perfectly
loadable.

James


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> Actually, for parisc, its not reasonable.  It's expected that our modules
> have multiple text sections (we have to use -ffunction-sections to
> generate them in order that the PCREL17 jump stubs can be interleaved).

I don't think you need what you think you need.  Having lots of sections in
your .o's when you compile is fine.  These should be combined by the linker
script that creates the .ko, however.  Unless I am missing something, there
is no purpose to this section distinction at insmod time--it's only
important for the relative layout of the parts of the .ko's text, which
winds up contiguous whether laid out that way at ld -r (.ko creation) time
or at insmod time.

> Even with the duplicate name, though, the module should be perfectly
> loadable.

But its /sys/module/foo/sections/ virtual directory becomes useless,
as a single name space can no longer describe what sections it has.
So perhaps it is then proper for add_sect_attrs() to punt on it.
But that reduces the functionality you get from CONFIG_KALLSYMS.


Thanks,
Roland
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On Mon, 2009-08-17 at 23:31 +0200, Helge Deller wrote:
> anyone else seeing this with 2.6.31-rc6 ?
> 
> <...system boots up...>
> Waiting for /dev to be fully populated...
>   
> sysfs: cannot create duplicate filename '/module/ac97_bus/sections/.text'

Not on ion.  However, it could be linker discrepancies ... what does 

objdump -x

show for the module in question ... does it have two .text sections?

James


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On Tue, 2009-08-18 at 17:14 -0700, Roland McGrath wrote:
> > Actually, for parisc, its not reasonable.  It's expected that our modules
> > have multiple text sections (we have to use -ffunction-sections to
> > generate them in order that the PCREL17 jump stubs can be interleaved).
> 
> I don't think you need what you think you need.  Having lots of sections in
> your .o's when you compile is fine.  These should be combined by the linker
> script that creates the .ko, however.  Unless I am missing something, there
> is no purpose to this section distinction at insmod time--it's only
> important for the relative layout of the parts of the .ko's text, which
> winds up contiguous whether laid out that way at ld -r (.ko creation) time
> or at insmod time.

Actually, I think we do; the module loader is a runtime linker, after
all.  We have specific module bugs we fixed by inserting relocation
stubs between the text sections.

Our specific problem is that the standard pa relocation is PCREL17 ...
as you can appreciate, 17 bits of relative jump isn't a lot.  If the
target isn't within the 17 bits, we have to insert a relocation stub to
do an indirect absolute jump thought the GOT.  Our problems occur when a
text section is wider than the 17 bits, which happens a lot in the
larger modules ... with nowhere to put the stub within range of the
relocation we can't load them.  Our fix is to split the text sections
with -ffunction-sections so we can be pretty much assured of having a
stub location within the 17 bits.

We don't care what they're called or anything.  We just care that
the .text is split up into multiple separately relocateable sections so
we can get the stubs within range of the jumps.

Now, of course, if the final linker could be persuaded to sprinkle
needed stubs through the text section and all we have to do is GOT
relocations, we don't need all the jiggery-pokery ... but I'm told this
can't be done.

James


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Subject: Re: kernel segv with 2.6.31-rc6 ?
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> Actually, I think we do; the module loader is a runtime linker, after
> all.  [...]

Indeed you do.  I've just read some of the parts of ld that normally
address this issue for HPPA.  They don't run for ld -r.  So this is just
another fine example of the lunacy of the ET_REL .ko madness that would be
naturally avoided by a sensible tweaked ET_DYN scheme.  But that battle was
lost way, way back in the long, long ago, so long ago they were probably
even still making HPPA machines then.

> Now, of course, if the final linker could be persuaded to sprinkle
> needed stubs through the text section and all we have to do is GOT
> relocations, we don't need all the jiggery-pokery ... but I'm told this
> can't be done.

Not with ld -r as it is today.  That's what ld does for you in proper final
links.  It looks to me like you might be able to enable some special mode
("finalish link" for -r) with a hack to HPPA ld to apply this stub-creation
logic based on the assumption that the symbols in the relocs will be
resolved to themselves, and barf on you if they're used for SHN_UNDEF symbols.
But nobody cares enough to fiddle with ld.


Thanks,
Roland
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Subject: Re: kernel segv with 2.6.31-rc6 ?
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On Tue, 2009-08-18 at 18:31 -0700, Roland McGrath wrote:
> > Actually, I think we do; the module loader is a runtime linker, after
> > all.  [...]
> 
> Indeed you do.  I've just read some of the parts of ld that normally
> address this issue for HPPA.  They don't run for ld -r.  So this is just
> another fine example of the lunacy of the ET_REL .ko madness that would be
> naturally avoided by a sensible tweaked ET_DYN scheme.

Using ET_DYN would have made our life easier when trying to code the
kernel module loader as well.  The basic problem is, of course, that
this is simple on an x86, so it didn't matter that much for the initial
implementation.  It just becomes less simple on anything else.

>   But that battle was
> lost way, way back in the long, long ago, so long ago they were probably
> even still making HPPA machines then.

Well, since they're still making parisc machines, I assume you mean
further back than when the production lines knocked off today?

> > Now, of course, if the final linker could be persuaded to sprinkle
> > needed stubs through the text section and all we have to do is GOT
> > relocations, we don't need all the jiggery-pokery ... but I'm told this
> > can't be done.
> 
> Not with ld -r as it is today.  That's what ld does for you in proper final
> links.  It looks to me like you might be able to enable some special mode
> ("finalish link" for -r) with a hack to HPPA ld to apply this stub-creation
> logic based on the assumption that the symbols in the relocs will be
> resolved to themselves, and barf on you if they're used for SHN_UNDEF symbols.
> But nobody cares enough to fiddle with ld.

So that leaves us stuck with the current implementation and still
needing a solution for the duplicate section names?

James


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From: Roland McGrath <roland@redhat.com>
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> Using ET_DYN would have made our life easier when trying to code the
> kernel module loader as well.  The basic problem is, of course, that
> this is simple on an x86, so it didn't matter that much for the initial
> implementation.  It just becomes less simple on anything else.

There are generic ways that ET_DYN is better for all, too.  
A little birdie told me it was all the fault of mips.
Anyway, water under the bridge.

> Well, since they're still making parisc machines, I assume you mean
> further back than when the production lines knocked off today?

I'm pretty sure you knew what I meant.

> So that leaves us stuck with the current implementation and still
> needing a solution for the duplicate section names?

Something like that.  Your fix makes module loading work again, so we
could just let /sys/module/*/{sections,notes}/ be missing on parisc
and see how long it takes anybody to complain, assuming you talk Rusty
out of his preference to change those error cases to refuse to load
the module.  OTOH, you said earlier that it was only some mistake that
produced multiple same-named sections to begin with, so you could just
try to fix that and then forget about it.

Finally, we could decide to really support the general case including
duplicate section names in these features.  That's really not very
hard to do, if we just completely change the interfaces for those
features.  e.g. instead of a /sys/module/*/sections directory, it
could just be a single file that contains lines of:

SHNDX 0xADDR NAME

For /sys/module/*/notes, no consumer really cares about the section
distinctions at all.  It would be easy enough just to have a single
pseudo-file that delivers all note sections concatenated together.
(In practice, there is usually only one note section at most anyway.)

Of course, such changes would be a new incompatible change to the
userland sysfs ABI, require compatibility concerns, etc.  It seems
unlikely anyone really wants to bother with all that.  It would be
more natural presentation of the info IMHO, but it hardly matters.


Thanks,
Roland

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On Tue, Aug 18, 2009 at 01:45:17PM -0400, John David Anglin wrote:
...
> There's one new parisc warning that I noticed:
> 
>  CC      arch/parisc/kernel/traps.o
> arch/parisc/kernel/traps.c: In function 'handle_interruption':
> arch/parisc/kernel/traps.c:535:18: warning: operation on 'regs->iasq[0]' may be
> undefined
> 
> Looks like a typo.

Yes - Line 535 should use both [0] and [1].

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
----

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 528f0ff..8b58bf0 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -532,7 +532,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 	  	/* Kill the user process later */
 	  	regs->iaoq[0] = 0 | 3;
 		regs->iaoq[1] = regs->iaoq[0] + 4;
-	 	regs->iasq[0] = regs->iasq[0] = regs->sr[7];
+	 	regs->iasq[0] = regs->iasq[1] = regs->sr[7];
 		regs->gr[0] &= ~PSW_B;
 		return;
 	}
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> On Mon, 2009-08-17 at 22:06 -0700, Roland McGrath wrote:
> > > I'd be happy to fail to load it.  There might be sysfs issues wit=
h it
> too.
> >=20
> > That sounds reasonable to me.  And I'd be happy to at least look a
> little
> > and maybe give some advice to anybody who finds themself building s=
uch a
> > (free) module, doesn't know why or how it got that way, and wants t=
o
> ask.
>=20
> Actually, for parisc, its not reasonable.  It's expected that our
> modules have multiple text sections (we have to use -ffunction-sectio=
ns
> to generate them in order that the PCREL17 jump stubs can be
> interleaved).
>=20
> The problem looks to be that some linker error gave the one of the na=
med
> function text sections a duplicate name.  Helge, can you post he objd=
ump
> info that shows which section had a duplicate name?
>=20
> Even with the duplicate name, though, the module should be perfectly
> loadable.


It's the ac97_bus kernel module:
-rw-r--r-- 1 root root 3.0K 2009-08-19 12:25 ac97_bus.ko=20


"objdump -x ac97_bus.ko" shows two .text sections:

ac97_bus.ko:     file format elf32-hppa-linux
ac97_bus.ko                                 =20
architecture: hppa1.1, flags 0x00000011:    =20
HAS_RELOC, HAS_SYMS                         =20
start address 0x00000000                    =20

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .note.gnu.build-id 00000024  00000000  00000000  00000034  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA           =20
  1 .text         00000000  00000000  00000000  00000058  2**0    =20
                  CONTENTS, ALLOC, LOAD, READONLY, CODE           =20
  2 .text.ac97_bus_match 0000001c  00000000  00000000  00000058  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE             =20
  3 .exit.text    00000030  00000000  00000000  00000074  2**2      =20
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE      =20
  4 .init.text    00000030  00000000  00000000  000000a4  2**2      =20
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE      =20
  5 .text         00000000  00000000  00000000  000000d4  2**0      =20
                  CONTENTS, ALLOC, LOAD, READONLY, CODE             =20
  6 .rodata.str1.4 00000008  00000000  00000000  000000d4  2**2     =20
                  CONTENTS, ALLOC, LOAD, READONLY, DATA             =20
  7 .modinfo      00000040  00000000  00000000  000000dc  2**2      =20
                  CONTENTS, ALLOC, LOAD, READONLY, DATA             =20
  8 __ksymtab     00000008  00000000  00000000  0000011c  2**2      =20
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA      =20
  9 __ksymtab_strings 0000000e  00000000  00000000  00000124  2**0  =20
                  CONTENTS, ALLOC, LOAD, READONLY, DATA             =20
 10 .PARISC.unwind 00000030  00000000  00000000  00000134  2**2     =20
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA      =20
 11 .data         00000034  00000000  00000000  00000164  2**2      =20
                  CONTENTS, ALLOC, LOAD, RELOC, DATA                =20
 12 .gnu.linkonce.this_module 00000160  00000000  00000000  00000198  2=
**2
                  CONTENTS, ALLOC, LOAD, RELOC, DATA, LINK_ONCE_DISCARD=
  =20
 13 .bss          00000000  00000000  00000000  000002f8  2**0         =
  =20
                  ALLOC                                                =
  =20
 14 .comment      0000003a  00000000  00000000  000002f8  2**0         =
  =20
                  CONTENTS, READONLY                                   =
  =20
SYMBOL TABLE:                                                          =
  =20
00000000 l    d  .note.gnu.build-id     00000000 .note.gnu.build-id    =
  =20
00000000 l    d  .text  00000000 .text                                 =
  =20
00000000 l    d  .text.ac97_bus_match   00000000 .text.ac97_bus_match  =
  =20
00000000 l    d  .exit.text     00000000 .exit.text                    =
  =20
00000000 l    d  .init.text     00000000 .init.text                    =
  =20
00000000 l    d  .text  00000000 .text                                 =
  =20
00000000 l    d  .rodata.str1.4 00000000 .rodata.str1.4                =
  =20
00000000 l    d  .modinfo       00000000 .modinfo                      =
  =20
00000000 l    d  __ksymtab      00000000 __ksymtab                     =
  =20
00000000 l    d  __ksymtab_strings      00000000 __ksymtab_strings     =
  =20
00000000 l    d  .PARISC.unwind 00000000 .PARISC.unwind                =
  =20
00000000 l    d  .data  00000000 .data                                 =
  =20
00000000 l    d  .gnu.linkonce.this_module      00000000 .gnu.linkonce.=
this_module
00000000 l    d  .bss   00000000 .bss                                  =
          =20
00000000 l    d  .comment       00000000 .comment                      =
          =20
00000000 l     F .text.ac97_bus_match   0000001c ac97_bus_match        =
          =20
00000000 l     F .exit.text     00000030 ac97_bus_exit                 =
          =20
00000000 l     F .init.text     00000030 ac97_bus_init                 =
          =20
00000000 l     O .modinfo       0000000c __mod_license77               =
          =20
00000000 l     O __ksymtab      00000008 __ksymtab_ac97_bus_type       =
          =20
00000000 l     O __ksymtab_strings      0000000e __kstrtab_ac97_bus_typ=
e         =20
0000000c l     O .modinfo       00000009 __module_depends              =
          =20
00000018 l     O .modinfo       00000026 __mod_vermagic5               =
          =20
00000000 g     O .gnu.linkonce.this_module      00000160 __this_module =
          =20
00000000 g     F .exit.text     00000030 cleanup_module                =
          =20
00000000 g     F .init.text     00000030 init_module                   =
          =20
00000000         *UND*  00000000 bus_unregister                        =
          =20
00000000 g     O .data  00000034 ac97_bus_type                         =
          =20
00000000         *UND*  00000000 bus_register                          =
          =20


RELOCATION RECORDS FOR [.exit.text]:
OFFSET   TYPE              VALUE
00000010 R_PARISC_DPREL21L  ac97_bus_type
00000014 R_PARISC_DPREL14R  ac97_bus_type
00000018 R_PARISC_PCREL17F  bus_unregister


RELOCATION RECORDS FOR [.init.text]:
OFFSET   TYPE              VALUE
00000010 R_PARISC_DPREL21L  ac97_bus_type
00000014 R_PARISC_DPREL14R  ac97_bus_type
00000018 R_PARISC_PCREL17F  bus_register


RELOCATION RECORDS FOR [__ksymtab]:
OFFSET   TYPE              VALUE
00000000 R_PARISC_DIR32    ac97_bus_type
00000004 R_PARISC_DIR32    __ksymtab_strings


RELOCATION RECORDS FOR [.PARISC.unwind]:
OFFSET   TYPE              VALUE
00000000 R_PARISC_SEGREL32  ac97_bus_match
00000004 R_PARISC_SEGREL32  .text.ac97_bus_match+0x00000018
00000010 R_PARISC_SEGREL32  ac97_bus_exit
00000014 R_PARISC_SEGREL32  .exit.text+0x0000002c
00000020 R_PARISC_SEGREL32  ac97_bus_init
00000024 R_PARISC_SEGREL32  .init.text+0x0000002c


RELOCATION RECORDS FOR [.data]:
OFFSET   TYPE              VALUE
00000000 R_PARISC_DIR32    .rodata.str1.4
00000010 R_PARISC_PLABEL32  ac97_bus_match


RELOCATION RECORDS FOR [.gnu.linkonce.this_module]:
OFFSET   TYPE              VALUE
000000d4 R_PARISC_PLABEL32  init_module
00000150 R_PARISC_PLABEL32  cleanup_module


Helge
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From - Thu Nov 08 21:04:46 2018
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From: "Helge Deller" <deller@gmx.de>
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Subject: Re: kernel segv with 2.6.31-rc6 ?
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> The root cause is a duplicate section name (.text); is this legal?
> 
> However, there's a problem with commit
> 6d76013381ed28979cd122eb4b249a88b5e384fa in that if you fail to allocate
> a mod->sect_attrs (in this case it's null because of the duplication),
> it still gets used without checking in add_notes_attrs()
> 
> This should fix it
> 
> Signed-off-by: James Bottomley <James.Bottomley@suse.de>


Thanks!
I tested it, and it does at least fix the kernel crash.

Tested-by: Helge Deller <deller@gmx.de>


 
> diff --git a/kernel/module.c b/kernel/module.c
> index fd14114..a703c49 100644
> --- a/kernel/module.c
> +++ b/kernel/module.c
> @@ -2353,7 +2353,8 @@ static noinline struct module *load_module(void
> __user *umod,
>  	if (err < 0)
>  		goto unlink;
>  	add_sect_attrs(mod, hdr->e_shnum, secstrings, sechdrs);
> -	add_notes_attrs(mod, hdr->e_shnum, secstrings, sechdrs);
> +	if (mod->sect_attrs)
> +		add_notes_attrs(mod, hdr->e_shnum, secstrings, sechdrs);
>  
>  	/* Get rid of temporary copy */
>  	vfree(hdr);
> 

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To: "Helge Deller" <deller@gmx.de>, roland@redhat.com,
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> > On Mon, 2009-08-17 at 22:06 -0700, Roland McGrath wrote:
> > > > I'd be happy to fail to load it.  There might be sysfs issues w=
ith
> it
> > too.
> > >=20
> > > That sounds reasonable to me.  And I'd be happy to at least look =
a
> > little
> > > and maybe give some advice to anybody who finds themself building=
 such
> a
> > > (free) module, doesn't know why or how it got that way, and wants=
 to
> > ask.
> >=20
> > Actually, for parisc, its not reasonable.  It's expected that our
> > modules have multiple text sections (we have to use -ffunction-sect=
ions
> > to generate them in order that the PCREL17 jump stubs can be
> > interleaved).
> >=20
> > The problem looks to be that some linker error gave the one of the =
named
> > function text sections a duplicate name.  Helge, can you post he ob=
jdump
> > info that shows which section had a duplicate name?
> >=20
> > Even with the duplicate name, though, the module should be perfectl=
y
> > loadable.
>=20
>=20
> It's the ac97_bus kernel module:
> -rw-r--r-- 1 root root 3.0K 2009-08-19 12:25 ac97_bus.ko=20

That's actually a problem of all kernel modules on hppa when using a ne=
wer compiler, not only the ac97_bus module.

The reason seems to be, that something in the newer gcc compilers chang=
ed to generate multiple sections all named ".text" for the PCREL17 relo=
cations.
Older compilers named those sections ".text.1", ".text.2", ".text.3" an=
d so forth.

"objdump -x ac97_bus.ko" with current (newer) compiler gives:
> Sections:
> Idx Name          Size      VMA       LMA       File off  Algn
>   0 .note.gnu.build-id 00000024  00000000  00000000  00000034  2**2
>                   CONTENTS, ALLOC, LOAD, READONLY, DATA           =20
>   1 .text         00000000  00000000  00000000  00000058  2**0    =20
>                   CONTENTS, ALLOC, LOAD, READONLY, CODE           =20
>   2 .text.ac97_bus_match 0000001c  00000000  00000000  00000058  2**2
>                   CONTENTS, ALLOC, LOAD, READONLY, CODE             =20
>   3 .exit.text    00000030  00000000  00000000  00000074  2**2      =20
>                   CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE      =20
>   4 .init.text    00000030  00000000  00000000  000000a4  2**2      =20
>                   CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE      =20
>   5 .text         00000000  00000000  00000000  000000d4  2**0      =20
>                   CONTENTS, ALLOC, LOAD, READONLY, CODE             =20
>...

older compiler produced:
Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         00000000  00000000  00000000  00000034  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  1 .text.ac97_bus_match 0000001c  00000000  00000000  00000034  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  2 .exit.text    00000030  00000000  00000000  00000050  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
  3 .init.text    00000030  00000000  00000000  00000080  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
  4 .text.1       00000000  00000000  00000000  000000b0  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
=2E..

Helge
--=20
Neu: GMX Doppel-FLAT mit Internet-Flatrate + Telefon-Flatrate
f=FCr nur 19,99 Euro/mtl.!* http://portal.gmx.net/de/go/dsl01
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Subject: Re: kernel segv with 2.6.31-rc6 ?
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> The reason seems to be, that something in the newer gcc compilers changed to generate multiple sections all named ".text" for the PCREL17 relocations.
> Older compilers named those sections ".text.1", ".text.2", ".text.3" and so forth.

GCC has never generated ".text.1", etc, on parisc linux as far as I know.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 08/20/2009 08:55 PM, John David Anglin wrote:
>> The reason seems to be, that something in the newer gcc compilers changed to generate multiple sections all named ".text" for the PCREL17 relocations.
>> Older compilers named those sections ".text.1", ".text.2", ".text.3" and so forth.
>
> GCC has never generated ".text.1", etc, on parisc linux as far as I know.

Hmm, I don't like to disagree with an gcc-expert like you,but
I did pasted an objdump in my last mail, which shows that gcc did
generated .text.1, .text.2 and so on:

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
   0 .text         00000000  00000000  00000000  00000034  2**0
                   CONTENTS, ALLOC, LOAD, READONLY, CODE
...
   4 .text.1       00000000  00000000  00000000  000000b0  2**0
                   CONTENTS, ALLOC, LOAD, READONLY, CODE

Helge
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Subject: Re: kernel segv with 2.6.31-rc6 ?
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On Thu, 2009-08-20 at 23:45 +0200, Helge Deller wrote:
> On 08/20/2009 08:55 PM, John David Anglin wrote:
> >> The reason seems to be, that something in the newer gcc compilers changed to generate multiple sections all named ".text" for the PCREL17 relocations.
> >> Older compilers named those sections ".text.1", ".text.2", ".text.3" and so forth.
> >
> > GCC has never generated ".text.1", etc, on parisc linux as far as I know.
> 
> Hmm, I don't like to disagree with an gcc-expert like you,but
> I did pasted an objdump in my last mail, which shows that gcc did
> generated .text.1, .text.2 and so on:
> 
> Sections:
> Idx Name          Size      VMA       LMA       File off  Algn
>    0 .text         00000000  00000000  00000000  00000034  2**0
>                    CONTENTS, ALLOC, LOAD, READONLY, CODE
> ...
>    4 .text.1       00000000  00000000  00000000  000000b0  2**0
>                    CONTENTS, ALLOC, LOAD, READONLY, CODE

Since this is a relinked object, might it be possible that ld rather
than gcc is the culprit?

James


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> Since this is a relinked object, might it be possible that ld rather
> than gcc is the culprit?

I don't think ld -r does any of that sort of magic.

Thanks,
Roland
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: kernel segv with 2.6.31-rc6 ?
Date: Thu, 20 Aug 2009 19:01:13 -0400 (EDT)
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To: James.Bottomley@HansenPartnership.com (James Bottomley)
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In-Reply-To: <1250805049.4302.121.camel@mulgrave.site> from "James Bottomley" at Aug 20, 2009 03:50:49 pm
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> On Thu, 2009-08-20 at 23:45 +0200, Helge Deller wrote:
> > On 08/20/2009 08:55 PM, John David Anglin wrote:
> > >> The reason seems to be, that something in the newer gcc compilers changed to generate multiple sections all named ".text" for the PCREL17 relocations.
> > >> Older compilers named those sections ".text.1", ".text.2", ".text.3" and so forth.
> > >
> > > GCC has never generated ".text.1", etc, on parisc linux as far as I know.
> > 
> > Hmm, I don't like to disagree with an gcc-expert like you,but
> > I did pasted an objdump in my last mail, which shows that gcc did
> > generated .text.1, .text.2 and so on:
> > 
> > Sections:
> > Idx Name          Size      VMA       LMA       File off  Algn
> >    0 .text         00000000  00000000  00000000  00000034  2**0
> >                    CONTENTS, ALLOC, LOAD, READONLY, CODE
> > ...
> >    4 .text.1       00000000  00000000  00000000  000000b0  2**0
> >                    CONTENTS, ALLOC, LOAD, READONLY, CODE
> 
> Since this is a relinked object, might it be possible that ld rather
> than gcc is the culprit?

I think it must be from binutils.  It might be a result of broken
section merging.  Possibly, we don't merge .text sections when
doing ld -r so that stub sections could be interleaved.  Alan Modra
wrote that code and I'm not that familiar with it.

The GCC definition of TEXT_SECTION_ASM_OP in pa-linux.h has never changed.
The PA backend in GCC doesn't play any section games on linux targets,
so it's hard to see how this could happen.  Check the assembler output
from GCC if you don't believe me.

At some time, GCC may start a new .text section at the beginning of
each function.  We do this on hpux but not linux.  This will cause
multiple .text sections to be present in an object and allow finer grained
stub placement.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Roland McGrath <roland@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: kernel segv with 2.6.31-rc6 ?
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> At some time, GCC may start a new .text section at the beginning of
> each function.  We do this on hpux but not linux.  This will cause
> multiple .text sections to be present in an object and allow finer grained
> stub placement.

arch/parisc/Makefile:

	# Without this, "ld -r" results in .text sections that are too big
	# (> 0x40000) for branches to reach stubs.
	ifndef CONFIG_FUNCTION_TRACER
	  cflags-y	+= -ffunction-sections
	endif
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From - Thu Nov 08 21:04:47 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: kernel segv with 2.6.31-rc6 ?
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> arch/parisc/Makefile:
> 
> 	# Without this, "ld -r" results in .text sections that are too big
> 	# (> 0x40000) for branches to reach stubs.
> 	ifndef CONFIG_FUNCTION_TRACER
> 	  cflags-y	+= -ffunction-sections
> 	endif

Thus, the .text.* sections must be coming from .S files, or possibly
from dwarf2 debug output.

Dave
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Reproducible random python crash.
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To: linux-parisc <linux-parisc@vger.kernel.org>,
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Kyle, Helge, John, James,

Could I get each of you to follow this recipe and tell me if python
crashes or hangs randomly during the execution of the last step?

Recipe:
mkdir -p ~/python-test
cd ~/python-test
apt-get update
apt-get build-dep xmms2
apt-get source xmms2
cd xmms2_0.6DrMattDestruction
./waf configure --nocache --prefix=/usr --with-mandir=/usr/share/man
--with-perl-archdir=/usr/lib/perl5 --with-perl-binary=/usr/bin/perl
--with-ruby-archdir=/usr/lib/ruby/1.8/hppa-linux
--with-ruby-libdir=/usr/lib/ruby/1.8 --without-optionals=python
--without-plugins=mac

Running the last step on a 2.6.26-1-parisc64-smp kernel results in
random behaviour ranging from sigsegv, sigill, sigtrap, and a hang.
Given that each of you might run it on a different kernel, I was
hoping to see if the behaviour is the same across different kernels.

Thanks!

Cheers,
Carlos.
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On Fri, Aug 21, 2009 at 10:59 AM, Carlos
O'Donell<carlos@systemhalted.org> wrote:
> Could I get each of you to follow this recipe and tell me if python
> crashes or hangs randomly during the execution of the last step?
>
> Recipe:
> mkdir -p ~/python-test
> cd ~/python-test
> apt-get update
> apt-get build-dep xmms2
> apt-get source xmms2
> cd xmms2_0.6DrMattDestruction
> ./waf configure --nocache --prefix=/usr --with-mandir=/usr/share/man
> --with-perl-archdir=/usr/lib/perl5 --with-perl-binary=/usr/bin/perl
> --with-ruby-archdir=/usr/lib/ruby/1.8/hppa-linux
> --with-ruby-libdir=/usr/lib/ruby/1.8 --without-optionals=python
> --without-plugins=mac
>
> Running the last step on a 2.6.26-1-parisc64-smp kernel results in
> random behaviour ranging from sigsegv, sigill, sigtrap, and a hang.
> Given that each of you might run it on a different kernel, I was
> hoping to see if the behaviour is the same across different kernels.

On 2.6.31-rc2-00010-g22a5b0c-dirty (kyle's 4 CPU PA8800) I get a hang
and segfaults, the segfault is reproducible the hang happens every
once in a while.

Cheers,
Carlos.



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Subject: Re: Reproducible random python crash.
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On Fri, 2009-08-21 at 11:43 -0400, Carlos O'Donell wrote:
> On Fri, Aug 21, 2009 at 10:59 AM, Carlos
> O'Donell<carlos@systemhalted.org> wrote:
> > Could I get each of you to follow this recipe and tell me if python
> > crashes or hangs randomly during the execution of the last step?
> >
> > Recipe:
> > mkdir -p ~/python-test
> > cd ~/python-test
> > apt-get update
> > apt-get build-dep xmms2
> > apt-get source xmms2
> > cd xmms2_0.6DrMattDestruction
> > ./waf configure --nocache --prefix=/usr --with-mandir=/usr/share/man
> > --with-perl-archdir=/usr/lib/perl5 --with-perl-binary=/usr/bin/perl
> > --with-ruby-archdir=/usr/lib/ruby/1.8/hppa-linux
> > --with-ruby-libdir=/usr/lib/ruby/1.8 --without-optionals=python
> > --without-plugins=mac
> >
> > Running the last step on a 2.6.26-1-parisc64-smp kernel results in
> > random behaviour ranging from sigsegv, sigill, sigtrap, and a hang.
> > Given that each of you might run it on a different kernel, I was
> > hoping to see if the behaviour is the same across different kernels.
> 
> On 2.6.31-rc2-00010-g22a5b0c-dirty (kyle's 4 CPU PA8800) I get a hang
> and segfaults, the segfault is reproducible the hang happens every
> once in a while.

Same here on ion (2.6.31-rc6).  (no hang seen, just segfaults in python)

James


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From - Thu Nov 08 21:04:47 2018
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Subject: Re: Reproducible random python crash.
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> > ./waf configure --nocache --prefix=/usr --with-mandir=/usr/share/man
> > --with-perl-archdir=/usr/lib/perl5 --with-perl-binary=/usr/bin/perl
> > --with-ruby-archdir=/usr/lib/ruby/1.8/hppa-linux
> > --with-ruby-libdir=/usr/lib/ruby/1.8 --without-optionals=python
> > --without-plugins=mac
> >
> > Running the last step on a 2.6.26-1-parisc64-smp kernel results in
> > random behaviour ranging from sigsegv, sigill, sigtrap, and a hang.
> > Given that each of you might run it on a different kernel, I was
> > hoping to see if the behaviour is the same across different kernels.
> 
> On 2.6.31-rc2-00010-g22a5b0c-dirty (kyle's 4 CPU PA8800) I get a hang
> and segfaults, the segfault is reproducible the hang happens every
> once in a while.

Do you have Grant's last patch installed?  Although it's early yet
to say for sure, I think it may have fixed the random segv problem
on gsyprf11 with 2.6.30.5.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:47 2018
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On Fri, Aug 21, 2009 at 12:19 PM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
>> > ./waf configure --nocache --prefix=3D/usr --with-mandir=3D/usr/sha=
re/man
>> > --with-perl-archdir=3D/usr/lib/perl5 --with-perl-binary=3D/usr/bin=
/perl
>> > --with-ruby-archdir=3D/usr/lib/ruby/1.8/hppa-linux
>> > --with-ruby-libdir=3D/usr/lib/ruby/1.8 --without-optionals=3Dpytho=
n
>> > --without-plugins=3Dmac
>> >
>> > Running the last step on a 2.6.26-1-parisc64-smp kernel results in
>> > random behaviour ranging from sigsegv, sigill, sigtrap, and a hang=
=2E
>> > Given that each of you might run it on a different kernel, I was
>> > hoping to see if the behaviour is the same across different kernel=
s.
>>
>> On 2.6.31-rc2-00010-g22a5b0c-dirty (kyle's 4 CPU PA8800) I get a han=
g
>> and segfaults, the segfault is reproducible the hang happens every
>> once in a while.
>
> Do you have Grant's last patch installed? =A0Although it's early yet
> to say for sure, I think it may have fixed the random segv problem
> on gsyprf11 with 2.6.30.5.

Which patch is this?

Also note that I ran this with LD_BIND_NOW=3D1 to force the dynamic
loader to resolve all relocations before running the program, and it
still crashes.

Cheers,
Carlos.
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> >> On 2.6.31-rc2-00010-g22a5b0c-dirty (kyle's 4 CPU PA8800) I get a hang
> >> and segfaults, the segfault is reproducible the hang happens every
> >> once in a while.
> >
> > Do you have Grant's last patch installed? =A0Although it's early yet
> > to say for sure, I think it may have fixed the random segv problem
> > on gsyprf11 with 2.6.30.5.
> 
> Which patch is this?

http://article.gmane.org/gmane.linux.ports.parisc/2047

Since I wrote, I had one segv with 2.6.30.5 in the GCC libjava
testsuite.  However, I think things are improved.  I have managed to
get through most of a GCC build and check with a SMP kernel.

I tried to follow your recipe on gsyprf11, but the source for 0.5
was dounloaded.  I didn't have any trouble with the configure command
with this version.

Dave
-- 
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Subject: Re: Reproducible random python crash.
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On Fri, Aug 21, 2009 at 3:30 PM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
>> >> On 2.6.31-rc2-00010-g22a5b0c-dirty (kyle's 4 CPU PA8800) I get a =
hang
>> >> and segfaults, the segfault is reproducible the hang happens ever=
y
>> >> once in a while.
>> >
>> > Do you have Grant's last patch installed? =3DA0Although it's early=
 yet
>> > to say for sure, I think it may have fixed the random segv problem
>> > on gsyprf11 with 2.6.30.5.
>>
>> Which patch is this?
>
> http://article.gmane.org/gmane.linux.ports.parisc/2047
>
> Since I wrote, I had one segv with 2.6.30.5 in the GCC libjava
> testsuite. =A0However, I think things are improved. =A0I have managed=
 to
> get through most of a GCC build and check with a SMP kernel.
>
> I tried to follow your recipe on gsyprf11, but the source for 0.5
> was dounloaded. =A0I didn't have any trouble with the configure comma=
nd
> with this version.

I should have mentioned you need unstable sources (not unstable debs)
in your sources.list.
e.g. deb-src ftp://ftp.ca.debian.org/debian/ unstable main contrib non-=
free
Does that help?

Cheers,
Carlos.
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From - Thu Nov 08 21:04:48 2018
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Subject: Re: Reproducible random python crash.
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To: carlos@systemhalted.org (Carlos O'Donell)
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> I should have mentioned you need unstable sources (not unstable debs)
> in your sources.list.
> e.g. deb-src ftp://ftp.ca.debian.org/debian/ unstable main contrib non-free
> Does that help?

Yes.  segvs and hangs on gsyprf11.  Think the hangs occur when
rerunning configure.  I looked at one segv and it appeared r19
was corrupt causing a branch to never-never-land.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:48 2018
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> Kyle, Helge, John, James,
> 
> Could I get each of you to follow this recipe and tell me if python
> crashes or hangs randomly during the execution of the last step?
> 
> Recipe:
> mkdir -p ~/python-test
> cd ~/python-test
> apt-get update
> apt-get build-dep xmms2
> apt-get source xmms2
> cd xmms2_0.6DrMattDestruction
> ./waf configure --nocache --prefix=/usr --with-mandir=/usr/share/man
> --with-perl-archdir=/usr/lib/perl5 --with-perl-binary=/usr/bin/perl
> --with-ruby-archdir=/usr/lib/ruby/1.8/hppa-linux
> --with-ruby-libdir=/usr/lib/ruby/1.8 --without-optionals=python
> --without-plugins=mac
> 
> Running the last step on a 2.6.26-1-parisc64-smp kernel results in
> random behaviour ranging from sigsegv, sigill, sigtrap, and a hang.
> Given that each of you might run it on a different kernel, I was
> hoping to see if the behaviour is the same across different kernels.

I ran the apt-get though configure commands several times with no
failures on "Linux mx3210 2.6.30.5 #7 Wed Aug 19 17:31:54 EDT 2009 parisc64".
So, it looks like the problem is SMP specific.  Same kernel with SMP
config on gsyprf11 resulted in random segs and hangs.  The hangs
may depend on the presence of cached data used by configure.

I booted 2.6.30.5 from gsyprf11 because I had one random segv and
one command hang while running the GCC testsuite.  I suspect that some
hangs are due to dropped signals.  I'm tempted to try the sequence
with 2.6.22.19.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> I booted 2.6.30.5 from gsyprf11 because I had one random segv and
> one command hang while running the GCC testsuite.  I suspect that some
> hangs are due to dropped signals.  I'm tempted to try the sequence
> with 2.6.22.19.

SMP 2.6.22.19 also fails with random segvs and hangs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:48 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: Reproducible random python crash.
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To: carlos@systemhalted.org (Carlos O'Donell)
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> Any idea what might be the cause?

No.  I looked at two core dumps briefly.  In the first, it looked
like the PIC register value was corrupt causing a transfer to page
0.  In the second, there wasn't any backtrace info (both pc and rp
were 0).   Unfortunately, this doesn't say much.

It would be fantastic if you could narrow this down.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Rusty Russell <rusty@rustcorp.com.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: kernel segv with 2.6.31-rc6 ?
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Cc: Roland McGrath <roland@redhat.com>, Helge Deller <deller@gmx.de>,
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On Wed, 19 Aug 2009 09:39:24 am James Bottomley wrote:
> Even with the duplicate name, though, the module should be perfectly
> loadable.

In a perfect world, yes, but there are places which assume they'll be
unique and I always thought that reasonable.

Front of my mind is /sys/module/<MODNAME/sections/ which has one file
per section.

Let's figure out how it happened tho; I'd rather fail cleanly than break
subtly and horribly later...

Thanks,
Rusty.
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From: Rusty Russell <rusty@rustcorp.com.au>
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Subject: Re: kernel segv with 2.6.31-rc6 ?
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On Wed, 19 Aug 2009 11:08:36 am James Bottomley wrote:
> On Tue, 2009-08-18 at 18:31 -0700, Roland McGrath wrote:
> > > Actually, I think we do; the module loader is a runtime linker, after
> > > all.  [...]
> > 
> > Indeed you do.  I've just read some of the parts of ld that normally
> > address this issue for HPPA.  They don't run for ld -r.  So this is just
> > another fine example of the lunacy of the ET_REL .ko madness that would be
> > naturally avoided by a sensible tweaked ET_DYN scheme.
> 
> Using ET_DYN would have made our life easier when trying to code the
> kernel module loader as well.  The basic problem is, of course, that
> this is simple on an x86, so it didn't matter that much for the initial
> implementation.  It just becomes less simple on anything else.

Actually, x86 was one of the archs which fucked us.  Richard Henderson and
I *had* this, but ld -shared without -fPIC helpfully tells you "you're doing
it wrong" on x86-64.

There were other issues, ISTR MIPS was a showstopper.  Google finds the
following summary I wrote when this stuff was fresher:

http://lkml.org/lkml/2003/1/12/271 :

	While ET_DYN modules are a reasonably serious win for ia64 (and
	probably hppa) (ie. -300 lines or so), they're a minor win for alpha
	and ppc64 (-100 lines or so), and no real change for arm, i386, ppc,
	sparc, and sparc64.  It's a lose for x86_64 (toolchain fixes, unless
	they want to use -fPIC for modules), mips and mips64 (major toolchain
	fixes, unless they want to use -fPIC for modules and stop using r28
	for current inside modules).

> >   But that battle was
> > lost way, way back in the long, long ago, so long ago they were probably
> > even still making HPPA machines then.

This isn't quite true; userspace should handle ET_DYN fine (at least, it
was supposed to).

So you could change any arch to use that, but it's a fair refactor if we leave
some archs behind.

If anyone's really interested, I can dig out the bits I have...

> So that leaves us stuck with the current implementation and still
> needing a solution for the duplicate section names?

If this is not a "don't do that" bug, we could try hacking around it in
parisc's module_arch_frob_sections?

Rusty.
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> Actually, x86 was one of the archs which fucked us.  Richard Henderson and
> I *had* this, but ld -shared without -fPIC helpfully tells you "you're doing
> it wrong" on x86-64.

This complaint could easily be (have been) made optional.

> There were other issues, ISTR MIPS was a showstopper.

Richard told me it's all MIPS' fault, but I was being discreet.


Thanks,
Roland
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On Thursday 20 August 2009 08:25:37 Helge Deller wrote:
> The reason seems to be, that something in the newer gcc compilers changed
> to generate multiple sections all named ".text" for the PCREL17
> relocations. Older compilers named those sections ".text.1", ".text.2",
> ".text.3" and so forth.

we saw this on Blackfin some time ago and it was tracked back to attribute =
mismatches in
assembly files:
http://blackfin.uclinux.org/gf/tracker/3638
http://blackfin.uclinux.org/gf/project/linux-kernel/scmsvn/?action=3Dbrowse=
&path=3D/trunk/arch/blackfin/mach-
common/entry.S&r1=3D3898&r2=3D3897&pathrev=3D3898

when `ld -r` ran, the sections named .text couldnt be combined due to diffe=
rent attributes so ld just added the .#=20
suffix for us

if you have scanelf installed (from pax-utils), that might help track back =
the source object ... `scanelf -qrk .text.1 ./`
=2Dmike

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From: Artem Alimarine <artem.alimarine@stromasys.com>
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Hi guys,

I see unaligned access happening in apply_relocate_add. Is this normal 
expected behavior?

Kernel 2.6.26.2, single CPU (Standard Debian 5.0.2). Address 0x4011f968.

Best regards,
Artem

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From - Thu Nov 08 21:04:48 2018
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On Wed, 26 Aug 2009 04:54:32 am Roland McGrath wrote:
> > Actually, x86 was one of the archs which fucked us.  Richard Henderson and
> > I *had* this, but ld -shared without -fPIC helpfully tells you "you're doing
> > it wrong" on x86-64.
> 
> This complaint could easily be (have been) made optional.

Yep, I even had a patch.  And meanwhile we could have lived with -fPIC modules
with some loss of performance (I think).

But at some level the problems accumulate until you go "nice idea, let's go
do something else" :)

But don't let me discourage you!
Rusty.
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On Wed, Aug 26, 2009 at 10:37:13AM +0200, Artem Alimarine wrote:
> Hi guys,
>
> I see unaligned access happening in apply_relocate_add. Is this normal  
> expected behavior?
>
> Kernel 2.6.26.2, single CPU (Standard Debian 5.0.2). Address 0x4011f968.
>

No, definitely not. relocations are applied to instructions, which
should always be instruction-width (4 bytes) aligned... Since we do
modify-replace on placeholders, it should never be using anything other
than a store-word to do it... do you have any more data on this?

regards, Kyle
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To: Kyle McMartin <kyle@mcmartin.ca>
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This is a multi-part message in MIME format.
--------------020705040506040408060702
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
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One point is that in the function apply_relocate_add a 4-byte aligned 
address is created:

627                dot = (Elf64_Addr)loc & ~0x03;
628                loc64 = (Elf64_Xword *)loc;

and used as a 64-bit location

711                case R_PARISC_DIR64:
712                        /* 64-bit effective address */
713                        *loc64 = val + addend;
714                        break;

So, 8-byte word is read with a 4-byte alignment.

I am busy building a parisc hardware emulator. It boots Linux, but it is 
unstable yet. There are unaligned accesses in the emulation trace. I was 
wandering whether it is normal behavior or caused by a bug in the 
emulation.

The emulation trace gives a lot of accesses like this:
0-4011f968: translate_virtual_write unaligned_trap, va=0:416a20c 
pa=1db1820c
0-4011f968: translate_virtual_write unaligned_trap, va=0:416a21c 
pa=1db1821c
0-4011f968: translate_virtual_write unaligned_trap, va=0:416a224 
pa=1db18224

They are indeed 4-byte aligned. The PC address matches 
apply_relocate_add in the kernel map.

Thanks,
Artem

Kyle McMartin wrote:
> On Wed, Aug 26, 2009 at 10:37:13AM +0200, Artem Alimarine wrote:
>  
>> Hi guys,
>>
>> I see unaligned access happening in apply_relocate_add. Is this 
>> normal  expected behavior?
>>
>> Kernel 2.6.26.2, single CPU (Standard Debian 5.0.2). Address 0x4011f968.
>>
>>     
>
> No, definitely not. relocations are applied to instructions, which
> should always be instruction-width (4 bytes) aligned... Since we do
> modify-replace on placeholders, it should never be using anything other
> than a store-word to do it... do you have any more data on this?
>
> regards, Kyle
>
>   


	
dr. Artem Alimarine <artem.alimarine@stromasys.com 
<mailto:artem.alimarine@stromasys.com>>
Software Architect
STROMASYS SA



Kyle McMartin wrote:
> On Wed, Aug 26, 2009 at 10:37:13AM +0200, Artem Alimarine wrote:
>   
>> Hi guys,
>>
>> I see unaligned access happening in apply_relocate_add. Is this normal  
>> expected behavior?
>>
>> Kernel 2.6.26.2, single CPU (Standard Debian 5.0.2). Address 0x4011f968.
>>
>>     
>
> No, definitely not. relocations are applied to instructions, which
> should always be instruction-width (4 bytes) aligned... Since we do
> modify-replace on placeholders, it should never be using anything other
> than a store-word to do it... do you have any more data on this?
>
> regards, Kyle
>
>   


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From - Thu Nov 08 21:04:49 2018
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To: Rusty Russell <rusty@rustcorp.com.au>
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X-Windows: never had it, never will.
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> But at some level the problems accumulate until you go "nice idea, let's go
> do something else" :)

Yeah, done been gone.

> But don't let me discourage you!

I've already spent too much time making ET_REL .ko DWARF parsing work to be
very motivated to do things right so all that work would never have been
necessary like I've been grumbling about the whole time. ;-)


Thanks,
Roland
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From - Thu Nov 08 21:04:49 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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On Wed, Aug 26, 2009 at 04:41:20PM +0200, Artem Alimarine wrote:
> One point is that in the function apply_relocate_add a 4-byte aligned  
> address is created:
>
> 627                dot = (Elf64_Addr)loc & ~0x03;
> 628                loc64 = (Elf64_Xword *)loc;
>
> and used as a 64-bit location
>
> 711                case R_PARISC_DIR64:
> 712                        /* 64-bit effective address */
> 713                        *loc64 = val + addend;
> 714                        break;
>
> So, 8-byte word is read with a 4-byte alignment.

Perhaps this is expected to be an 8byte address pointing at a 4-byte word?
(and it's a bug that ist's not)

> I am busy building a parisc hardware emulator. It boots Linux, but it is  
> unstable yet. There are unaligned accesses in the emulation trace. I was  
> wandering whether it is normal behavior or caused by a bug in the  
> emulation.

HP has such an emulator. I've even tried to boot parisc-linux on it (failed)
~8 years ago.  Any chance someone from HP could publish it?

You might also look at Aries PA-RISC emulator (on ia64):
    http://www.princeton.edu/~rblee/ELE572Papers/PARISCtoIA64.htm

> The emulation trace gives a lot of accesses like this:
> 0-4011f968: translate_virtual_write unaligned_trap, va=0:416a20c  
> pa=1db1820c
> 0-4011f968: translate_virtual_write unaligned_trap, va=0:416a21c  
> pa=1db1821c
> 0-4011f968: translate_virtual_write unaligned_trap, va=0:416a224  
> pa=1db18224
>
> They are indeed 4-byte aligned. The PC address matches  
> apply_relocate_add in the kernel map.

*nod*

thanks,
grant
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Subject: Re: unaligned accesses in apply_relocate_add
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> On Wed, Aug 26, 2009 at 04:41:20PM +0200, Artem Alimarine wrote:
> > One point is that in the function apply_relocate_add a 4-byte aligned  
> > address is created:
> >
> > 627                dot = (Elf64_Addr)loc & ~0x03;
> > 628                loc64 = (Elf64_Xword *)loc;
> >
> > and used as a 64-bit location
> >
> > 711                case R_PARISC_DIR64:
> > 712                        /* 64-bit effective address */
> > 713                        *loc64 = val + addend;
> > 714                        break;
> >
> > So, 8-byte word is read with a 4-byte alignment.
> 
> Perhaps this is expected to be an 8byte address pointing at a 4-byte word?
> (and it's a bug that ist's not)

No, R_PARISC_DIR64 is a 64-bit reloacation.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Grant Grundler <grundler@parisc-linux.org>

On Tue, Aug 18, 2009 at 01:45:17PM -0400, John David Anglin wrote:
>  CC      arch/parisc/kernel/traps.o
> arch/parisc/kernel/traps.c: In function 'handle_interruption':
> arch/parisc/kernel/traps.c:535:18: warning: operation on 'regs->iasq[0]'
> may be undefined

Yes - Line 535 should use both [0] and [1].

Reported-by: John David Anglin <dave@hiauly1.hia.nrc.ca>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -532,7 +532,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 	  	/* Kill the user process later */
 	  	regs->iaoq[0] = 0 | 3;
 		regs->iaoq[1] = regs->iaoq[0] + 4;
-	 	regs->iasq[0] = regs->iasq[0] = regs->sr[7];
+	 	regs->iasq[0] = regs->iasq[1] = regs->sr[7];
 		regs->gr[0] &= ~PSW_B;
 		return;
 	}
--
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] fix unaligned access in 64-bit apply_relocate_add
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Assuming, of course, that loc64 shouldn't be 8-byte masked, and that the
relocation address was correct.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 61ee0ee..eea810c 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -63,6 +63,7 @@
 #include <linux/bug.h>
 
 #include <asm/unwind.h>
+#include <asm/unaligned.h>
 
 #if 0
 #define DEBUGP printk
@@ -799,7 +800,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			break;
 		case R_PARISC_DIR64:
 			/* 64-bit effective address */
-			*loc64 = val + addend;
+			put_unaligned(val + addend, loc64);
 			break;
 		case R_PARISC_SEGREL32:
 			/* 32-bit segment relative address */
--
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Subject: Re: [PATCH] fix unaligned access in 64-bit apply_relocate_add
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> Assuming, of course, that loc64 shouldn't be 8-byte masked, and that the
> relocation address was correct.

I believe that the relocation location should be 8-byte aligned.  You don't
want to be handling unaligned traps all the time.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Meelis Roos <mroos@linux.ee>
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Subject: Re: HPPA hang with PCI SERR or PARITY enabling
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> > The real problem happens after tulip driver 
> > loading and PCI configuration of the cards.
> 
> This would be consistent with add-on cards not getting MMIO
> space assigned correctly. The ioread32() is one of several operations
> to configure the card.
> 
> It would be helpful to know if 2.6.30.x kernels (from unstable)
> show the same problem.

Tried 2.6.30-6 kernels today. Uniprocessor parisc64 kernel behaves the 
same. parisc64-smp kernel has an additional crash:

Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.30-1-parisc64-smp'
Selected kernel: /vmlinux-2.6.30-1-parisc64-smp from partition 2
Selected ramdisk: /initrd.img-2.6.30-1-parisc64-smp from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4771840 mediaptr 0x1000
Segment 1 load 00618000 size 460848 mediaptr 0x48e000
Segment 2 load 0068c000 size 300800 mediaptr 0x4ff000
Loading ramdisk 8180633 bytes @ 3f821000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.30-1-parisc64-smp (Debian 2.6.30-6) (waldi@debian.org) (gcc version 4.3.4 (GCC) ) #1 SMP Sun Aug 16 03:05:33 UTC 2009
[    0.000000] unwind_init: start = 0x404b9144, end = 0x404e5214, entries = 11277
[    0.000000] WARNING: Out of order unwind entry! 00000000404bb0c4 and 00000000404bb0d4
[    0.000000] WARNING: Out of order unwind entry! 00000000404bb0d4 and 00000000404bb0e4
[    0.000000] FP[0] enabled: Rev 1 Model 16
[    0.000000] The 64-bit Kernel has started...
[    0.000000] console [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00005c90 00000491 00000000 00000002 2353fbcb 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000203
[    0.000000] CPUID vers 17 rev 8 (0x00000228)
[    0.000000] capabilities 0x1
[    0.000000] model 9000/800/L1000-44
[    0.000000] Total Memory: 3072 MB
[    0.000000] initrd: 7f821000-7ffee399
[    0.000000] initrd: reserving 3f821000-3ffee399 (mem_max c0000000)
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 775680
[    0.000000] Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.30-1-parisc64-smp
[    0.000000] NR_IRQS:128
[    0.000000] PID hash table entries: 4096 (order: 12, 32768 bytes)
[    0.000000] Console: colour dummy device 160x64
[    0.028000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.064000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.580000] Memory: 3075452k/3145728k available (3144k kernel code, 69636k reserved, 1467k data, 296k init)
[    0.588000] virtual kernel memory layout:
[    0.588000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
[    0.588000]     memory  : 0x0000000040000000 - 0x0000000100000000   (3072 MB)
[    0.588000]       .init : 0x000000004068c000 - 0x00000000406d6000   ( 296 kB)
[    0.588000]       .data : 0x0000000040412118 - 0x0000000040581000   (1467 kB)
[    0.588000]       .text : 0x0000000040100000 - 0x0000000040412118   (3144 kB)
[    0.660000] Calibrating delay loop... 876.54 BogoMIPS (lpj=1753088)
[    0.756000] Security Framework initialized
[    0.764000] SELinux:  Disabled at boot.
[    0.776000] Mount-cache hash table entries: 256
[    0.784000] Initializing cgroup subsys ns
[    0.876000] Initializing cgroup subsys cpuacct
[    0.884000] Initializing cgroup subsys devices
[    0.892000] Initializing cgroup subsys freezer
[    0.896000] Initializing cgroup subsys net_cls
[    0.904000] Brought up 1 CPUs
[    1.160000] net_namespace: 1928 bytes
[    1.168000] regulator: core version 0.5
[    1.176000] NET: Registered protocol family 16
[    1.300000] EISA bus registered
[    1.304000] Searching for devices...
[    1.772000] Found devices:
[    1.772000] 1. Rhapsody DC- 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5c9, 0x00004 }
[    1.780000] 2. Rhapsody DC- 440 at 0xfffffffffffa6000 [166] { 0, 0x0, 0x5c9, 0x00004 }
[    1.788000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x095, 0x00009 }
[    1.792000] 4. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
[    1.800000] 5. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
[    1.868000] 6. Elroy PCI Bridge at 0xfffffffffed32000 [0/1] { 13, 0x0, 0x782, 0x0000a }
[    1.876000] 7. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
[    1.884000] 8. Elroy PCI Bridge at 0xfffffffffed36000 [0/3] { 13, 0x0, 0x782, 0x0000a }
[    1.892000] 9. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
[    1.900000] 10. Elroy PCI Bridge at 0xfffffffffed3a000 [0/5] { 13, 0x0, 0x782, 0x0000a }
[    2.432000] 11. Elroy PCI Bridge at 0xfffffffffed3c000 [0/6] { 13
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         FLASH     ON         ON
LED State: Unexpected Reboot. Running non-OS code. Non-critical error detected.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
[    3.132000] powersw: Soft power switch support not available.
[    3.144000] bio: create slab <bio-0> at 0
[    3.292000] NET: Registered protocol family 2
[    3.348000] IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
[    3.356000] TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
[    3.440000] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    3.564000] TCP: Hash tables configured (established 262144 bind 65536)
[    3.568000] TCP reno registered
[    3.584000] NET: Registered protocol family 1
[    3.696000] Trying to unpack rootfs image as initramfs...
[    4.732000] Freeing initrd memory: 7988k freed
[    4.740000] Chassis warnings not supported.
[    4.748000] Performance monitoring counters enabled for Rhapsody DC- 440
[    4.764000] audit: initializing netlink socket (disabled)
[    4.772000] type=2000 audit(1251556747.242:1): initialized
[    4.788000] VFS: Disk quotas dquot_6.5.2
[    4.796000] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    4.816000] msgmni has been set to 6023
[    4.828000] alg: No test for stdrng (krng)
[    4.836000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[    4.848000] io scheduler noop registered
[    4.856000] io scheduler anticipatory registered
[    4.860000] io scheduler deadline registered
[    4.864000] io scheduler cfq registered (default)
[    4.960000] PDC Stable Storage facility v0.30
[    5.652000] STI GSC/PCI core graphics driver Version 0.9a
[    5.684000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    5.692000] serial 0000:00:04.0: enabling device (0146 -> 0147)
[    5.704000] 0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 70) is a 16550A
[    5.712000] console handover: boot [ttyB0] -> real [ttyS0]
[    5.728000] 0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 70) is a 16550A
[    5.752000] 0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 70) is a 16550A
[    5.764000] serial 0000:00:05.0: enabling device (0000 -> 0003)
[    5.776000] serial 0000:00:05.0: enabling SERR and PARITY (0003 -> 0143)
[    5.792000] 0000:00:05.0: ttyS3 at MMIO 0xfffffffff8005000 (irq = 71) is a 16550A
[    5.804000] Couldn't register serial port 0000:00:05.0: -28
[    5.908000] brd: module loaded
[    5.912000] mice: PS/2 mouse device common for all mice
[    6.032000] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[    6.048000] TCP cubic registered
[    6.172000] NET: Registered protocol family 17
[    6.184000] registered taskstats version 1
[    6.196000] rtc-generic rtc-generic: setting system clock to 2009-08-29 14:39:08 UTC (1251556748)
[    6.316000] Freeing unused kernel memory: <0>------------[ cut here ]------------
[    6.464000] Badness at /build/buildd/linux-2.6-2.6.30/debian/build/source_hppa_none/kernel/smp.c:369
[    6.476000] 
[    6.480000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[    6.484000] PSW: 00001000000001100000000000001110 Not tainted
[    6.488000] r00-03  000000000806000e 0000000040686fc0 0000000040182c3c 000000004058d020
[    6.496000] r04-07  0000000040668fc0 000000004065e7e0 00000000404f7db0 0000000000000000
[    6.504000] r08-11  0000000040686fc0 000000000000000 00000000406797c0
[    7.028000] r12-15  0000000000000001 0000000000000001 0000000000000000 0000000000000001
[    7.040000] r16-19  00000000f00003b0 0000000040686fc0 00000000ff83eb40 00000000406d6000
[    7.048000] r20-23  0000000000000000 00000000406d6000 ffffffffffffffff 0000000000000001
[    7.056000] r24-27  0000000000000000 000000004065e7e0 00000000404f7db0 0000000040668fc0
[    7.064000] r28-31  0000000000000000 00000000ff840490 00000000ff840580 0000000000000000
[    7 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    7.592000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    7.608000] 
[    7.608000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040182984 0000000040182988
[    7.616000]  IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000
[    7.624000]  CPU:        0   CR30: 00000000ff840000 CR31: 0000000000008020
[    7.628000]  ORIG_R28: 000000000800000e
[    7.632000]  function_many+0x7c/0x2f8
[    8.152000]  IAOQ[1]: smp_call_function_many+0x80/0x2f8
[    8.164000]  RP(r2): smp_call_function+0x3c/0x50
[    8.168000] Backtrace:
[    8.168000] Backtrace:
[    8.168000]  [<0000000040115fe8>] printk+0x40/0x50
[    8.168000]  <0000000040152698>] print_tainted+0xc0/0xe0
[    8.168000]  [<0000000040104084>] intr_check_sig+0x0/0x38
[    8.168000]  [<0000000040104074>] intr_return+0x0/0x4
[    8.168000]  [<0000000040182c3c>] smp_call_function+0x3c/0x50
[    8.168000]  [<0000000040159c40>] on_each_cpu+0x28/0x68
[    8.168000]  [<000000004011b95c>] free_initmem+0x94/0x340

-- 
Meelis Roos (mroos@linux.ee)
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Newsgroups: gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.glibc,gmane.linux.ports.parisc
Subject: Re: hppa nptl switch
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Xref: news.gmane.org gmane.linux.debian.ports.hppa:5975 gmane.linux.debian.devel.glibc:30211 gmane.linux.ports.parisc:2088
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On Wed, Aug 19, 2009 at 8:48 AM, Aurelien Jarno<aurelien@aurel32.net> wrote:
> [Changing debian-bsd to debian-glibc, probably more appropriate to
> discuss about the internal glibc code ;-)]
>> > may I ask you for status of hppa nptl switch ?

Petr, Aurelian,

I spent the last two days rewriting the pthread structure layouts for
hppa's nptl implementation.

Thanks to Petr's insight, I was able to restructure both
pthread_mutex_t, and pthread_rwlock_t to be 100% ABI compatible with
Linuxthreads.

In the case of pthread_cond_t, the structure grew so much, that I had
to use some of the old lock words (non-zero initialized words) for new
fields, and this meant that all of the pthread_cond_* functions will
quickly test and zero pthread_cond_t before use. The new NPTL
PTHREAD_COND_INITIALIZER uses the fast-path in the code, thus as
applications are rebuilt they will run faster.

The prototype patch in testing is here:
http://www.parisc-linux.org/~carlos/2009-08-31-glibc-ports-hppa-nptl.diff

This patch is not the final version, I need to remove the
old_pthread_cond_* functions, and cleanup the pthread_cond_* functions
to use the same version number. At the end of the day I'm not going to
version any of the functions, because technically they will be ABI
compatible. I will however, surround the checking code with some
version checks so it can be removed in the future (or generate a
warning).

Please note that the new code *will* support partial upgrades for
debian, since this is a 100% ABI compatible change.

I will report back over the next few days on the status of testing the
new patch.

Cheers,
Carlos.



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Hi.

> I spent the last two days rewriting the pthread structure layouts for
> hppa's nptl implementation.

It looks very nice and promising now, thanks.

> I was able to restructure both pthread_mutex_t, and pthread_rwlock_t to 
> be 100% ABI compatible with Linuxthreads.

Strictly speaking, currently they are not,
they are only 100% backward compatible.
But only step away, they could be 100% compatible.
Just the new NPTL initializers should initilize
the four ones as previously in LT.
In practice it shouldn't be problem at all.
Debian should make sure that binary/library compiled
against NPTL-hppa-glibc will require NPTL-hppa-glibc
by proper Depends: line like "libc6 (>= 2.10)".

> The prototype patch in testing is here:
> http://www.parisc-linux.org/~carlos/2009-08-31-glibc-ports-hppa-nptl.diff

It is not possible to use "#include_next <pthread.h>" in
sysdeps/unix/sysv/linux/hppa/nptl/pthread.h, as this file
is installed in libc6-dev for general use.
The proper way would be to convince Mr. Drepper to split
<pthread.h> into <pthread.h> and <bits/pthreadinit.h>.
Good luck with it.

The pthread_cond_init.c should call cond_compat_clear()
instead of cond_compat_check_and_clear() or may be just
"cond->__data.__initializer = 0"

Thanks for all your work.

Petr



From - Thu Nov 08 21:04:49 2018
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On Mon, Aug 31, 2009 at 4:16 AM, Petr Salinger<Petr.Salinger@seznam.cz> wrote:
> Hi.
>
>> I spent the last two days rewriting the pthread structure layouts for
>> hppa's nptl implementation.
>
> It looks very nice and promising now, thanks.
>
>> I was able to restructure both pthread_mutex_t, and pthread_rwlock_t to be
>> 100% ABI compatible with Linuxthreads.
>
> Strictly speaking, currently they are not,
> they are only 100% backward compatible.
> But only step away, they could be 100% compatible.
> Just the new NPTL initializers should initilize
> the four ones as previously in LT.

Yes, my intent was to do exactly that, I had not yet fixed pthread.h
to set the old lock words to all one. I have done exactly this in the
most recent version of my patch. The pthread_mutex_t and
pthread_rwlock_t are now 100% ABI compatible with Linuxthreads.

> In practice it shouldn't be problem at all.
> Debian should make sure that binary/library compiled
> against NPTL-hppa-glibc will require NPTL-hppa-glibc
> by proper Depends: line like "libc6 (>= 2.10)".

Does every package have to do this? I'm not very familiar with all the
packaging requirements.

>> The prototype patch in testing is here:
>> http://www.parisc-linux.org/~carlos/2009-08-31-glibc-ports-hppa-nptl.diff

Second version here:
http://www.parisc-linux.org/~carlos/2009-08-31-glibc-ports-hppa-nptl-v2.diff

The next version is currently testing. It still does not include code
to remove cond_*_clear calls when the ABI level is raised to 2.10.

> It is not possible to use "#include_next <pthread.h>" in
> sysdeps/unix/sysv/linux/hppa/nptl/pthread.h, as this file
> is installed in libc6-dev for general use.

Fixed.

> The pthread_cond_init.c should call cond_compat_clear()
> instead of cond_compat_check_and_clear() or may be just
> "cond->__data.__initializer = 0"

Fixed.

Thanks for the review.

Cheers,
Carlos.
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Carlos O'Donell wrote:
>> In practice it shouldn't be problem at all.
>> Debian should make sure that binary/library compiled
>> against NPTL-hppa-glibc will require NPTL-hppa-glibc
>> by proper Depends: line like "libc6 (>= 2.10)".
> 
> Does every package have to do this? I'm not very familiar with all the
> packaging requirements.

It is something that should automatically get done correctly as long as 
the libc-dev package defines the minimum version that way.

The mechanism that determines this is in /var/lib/dpkg/info/libc6.shlibs. 
Currently this has lines like:
   libc 6 libc6 (>= 2.9)

It's virtually certain that the shlibs file will be updated to read
'(>= 2.10)' when the glibc maintainers switch to that version.

Cheers,
FJP
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On Mon, Aug 31, 2009 at 12:46 PM, Frans Pop<elendil@planet.nl> wrote:
> Carlos O'Donell wrote:
>>> In practice it shouldn't be problem at all.
>>> Debian should make sure that binary/library compiled
>>> against NPTL-hppa-glibc will require NPTL-hppa-glibc
>>> by proper Depends: line like "libc6 (>=3D 2.10)".
>>
>> Does every package have to do this? I'm not very familiar with all t=
he
>> packaging requirements.
>
> It is something that should automatically get done correctly as long =
as
> the libc-dev package defines the minimum version that way.
>
> The mechanism that determines this is in /var/lib/dpkg/info/libc6.shl=
ibs.
> Currently this has lines like:
> =A0 libc 6 libc6 (>=3D 2.9)
>
> It's virtually certain that the shlibs file will be updated to read
> '(>=3D 2.10)' when the glibc maintainers switch to that version.

Thanks Frans. This is what I expected.

Cheers,
Carlos.
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Frans Pop a =E9crit :
> Carlos O'Donell wrote:
>>> In practice it shouldn't be problem at all.
>>> Debian should make sure that binary/library compiled
>>> against NPTL-hppa-glibc will require NPTL-hppa-glibc
>>> by proper Depends: line like "libc6 (>=3D 2.10)".
>> Does every package have to do this? I'm not very familiar with all the
>> packaging requirements.
>=20
> It is something that should automatically get done correctly as long as=
=20
> the libc-dev package defines the minimum version that way.
>=20
> The mechanism that determines this is in /var/lib/dpkg/info/libc6.shlib=
s.=20
> Currently this has lines like:
>    libc 6 libc6 (>=3D 2.9)
>=20

No, as glibc uses symbols files, this file is actually not used.
Nevertheless it is still possible to resolve all symbols to libc6 (>=3D 2=
.10).

--=20
Aurelien Jarno                          GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net


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On Tue, Sep 1, 2009 at 2:08 AM, Aurelien Jarno<aurelien@aurel32.net> wrote:
> Frans Pop a =E9crit :
>> Carlos O'Donell wrote:
>>>> In practice it shouldn't be problem at all.
>>>> Debian should make sure that binary/library compiled
>>>> against NPTL-hppa-glibc will require NPTL-hppa-glibc
>>>> by proper Depends: line like "libc6 (>=3D 2.10)".
>>> Does every package have to do this? I'm not very familiar with all the
>>> packaging requirements.
>>
>> It is something that should automatically get done correctly as long as
>> the libc-dev package defines the minimum version that way.
>>
>> The mechanism that determines this is in /var/lib/dpkg/info/libc6.shlibs=
.
>> Currently this has lines like:
>> =A0 =A0libc 6 libc6 (>=3D 2.9)
>>
>
> No, as glibc uses symbols files, this file is actually not used.
> Nevertheless it is still possible to resolve all symbols to libc6 (>=3D 2=
.10).

Once an application is rebuilt against a new libc, what prevents the
user from downgrading libc and breaking the application?

Cheers,
Carlos.



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On Tue, Sep 1, 2009 at 3:55 PM, Carlos O'Donell<carlos@systemhalted.org=
> wrote:
> On Tue, Sep 1, 2009 at 2:08 AM, Aurelien Jarno<aurelien@aurel32.net> =
wrote:
>> Frans Pop a =C3=A9crit :
>>> Carlos O'Donell wrote:
>>>>> In practice it shouldn't be problem at all.
>>>>> Debian should make sure that binary/library compiled
>>>>> against NPTL-hppa-glibc will require NPTL-hppa-glibc
>>>>> by proper Depends: line like "libc6 (>=3D 2.10)".
>>>> Does every package have to do this? I'm not very familiar with all=
 the
>>>> packaging requirements.
>>>
>>> It is something that should automatically get done correctly as lon=
g as
>>> the libc-dev package defines the minimum version that way.
>>>
>>> The mechanism that determines this is in /var/lib/dpkg/info/libc6.s=
hlibs.
>>> Currently this has lines like:
>>> =C2=A0 =C2=A0libc 6 libc6 (>=3D 2.9)
>>>
>>
>> No, as glibc uses symbols files, this file is actually not used.
>> Nevertheless it is still possible to resolve all symbols to libc6 (>=
=3D 2.10).
>
> Once an application is rebuilt against a new libc, what prevents the
> user from downgrading libc and breaking the application?

I'd say "common sense" but I recall we don't have protection against
silliness ;^)

T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:04:50 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.glibc
Subject: Re: hppa nptl switch
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Carlos O'Donell a =E9crit :
> On Tue, Sep 1, 2009 at 2:08 AM, Aurelien Jarno<aurelien@aurel32.net> =
wrote:
>> Frans Pop a =E9crit :
>>> Carlos O'Donell wrote:
>>>>> In practice it shouldn't be problem at all.
>>>>> Debian should make sure that binary/library compiled
>>>>> against NPTL-hppa-glibc will require NPTL-hppa-glibc
>>>>> by proper Depends: line like "libc6 (>=3D 2.10)".
>>>> Does every package have to do this? I'm not very familiar with all=
 the
>>>> packaging requirements.
>>> It is something that should automatically get done correctly as lon=
g as
>>> the libc-dev package defines the minimum version that way.
>>>
>>> The mechanism that determines this is in /var/lib/dpkg/info/libc6.s=
hlibs.
>>> Currently this has lines like:
>>>    libc 6 libc6 (>=3D 2.9)
>>>
>> No, as glibc uses symbols files, this file is actually not used.
>> Nevertheless it is still possible to resolve all symbols to libc6 (>=
=3D 2.10).
>=20
> Once an application is rebuilt against a new libc, what prevents the
> user from downgrading libc and breaking the application?
>=20

If we make sure that the new programs are using symbols from version
GLIBC_2.10, the program should refuse to start with a lower version of
the glibc.

--=20
Aurelien Jarno                          GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net
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	"linux-parisc" <linux-parisc@vger.kernel.org>
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On Tuesday 01 September 2009 11:50:27 Aurelien Jarno wrote:
> Carlos O'Donell a =E9crit :
> > On Tue, Sep 1, 2009 at 2:08 AM, Aurelien Jarno<aurelien@aurel32.net>=20
wrote:
> >> Frans Pop a =E9crit :
> >>> Carlos O'Donell wrote:
> >>>>> In practice it shouldn't be problem at all.
> >>>>> Debian should make sure that binary/library compiled
> >>>>> against NPTL-hppa-glibc will require NPTL-hppa-glibc
> >>>>> by proper Depends: line like "libc6 (>=3D 2.10)".
> >>>>
> >>>> Does every package have to do this? I'm not very familiar with all t=
he
> >>>> packaging requirements.
> >>>
> >>> It is something that should automatically get done correctly as long =
as
> >>> the libc-dev package defines the minimum version that way.
> >>>
> >>> The mechanism that determines this is in
> >>> /var/lib/dpkg/info/libc6.shlibs. Currently this has lines like:
> >>>    libc 6 libc6 (>=3D 2.9)
> >>
> >> No, as glibc uses symbols files, this file is actually not used.
> >> Nevertheless it is still possible to resolve all symbols to libc6 (>=3D
> >> 2.10).
> >
> > Once an application is rebuilt against a new libc, what prevents the
> > user from downgrading libc and breaking the application?
>
> If we make sure that the new programs are using symbols from version
> GLIBC_2.10, the program should refuse to start with a lower version of
> the glibc.

i think the question was one about packaging rather than general use ?  if =
you=20
build a package against a newer glibc version but it only uses older symbol=
s,=20
then in theory it should work fine with older glibc versions.  if the symbo=
l=20
changes between versions, then it should have corresponding symbol version=
=20
changes as well (which will automatically be recorded in the binary).
=2Dmike

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On Tue, Sep 1, 2009 at 8:03 PM, Mike Frysinger<vapier@gentoo.org> wrote:
> i think the question was one about packaging rather than general use ? =
=A0if you
> build a package against a newer glibc version but it only uses older symb=
ols,
> then in theory it should work fine with older glibc versions. =A0if the s=
ymbol
> changes between versions, then it should have corresponding symbol versio=
n
> changes as well (which will automatically be recorded in the binary).

Yes, the question is specifically about packaging.

If the answer is "Debian does not prevent you from downgrading glibc,
even if you have new packages built against the new glibc", then I
accept that.

However, I have another question. What prevents applications built on
a buildd against a newer glibc, from being installed on a system with
an older glibc? Glibc provides backwards compatibility, but *not*
forwards. What happens in the packaging subsystem to prevent this?

How does an application encode "I was built against glibc X.Y,
therefore I should only be run on such a glibc or newer."

Cheers,
Carlos.



From - Thu Nov 08 21:04:50 2018
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Subject: Re: hppa nptl switch
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On Wed, Sep 02, 2009 at 10:09:22AM -0400, Carlos O'Donell wrote:
> On Tue, Sep 1, 2009 at 8:03 PM, Mike Frysinger<vapier@gentoo.org> wro=
te:
> > i think the question was one about packaging rather than general us=
e ? =A0if you
> > build a package against a newer glibc version but it only uses olde=
r symbols,
> > then in theory it should work fine with older glibc versions. =A0if=
 the symbol
> > changes between versions, then it should have corresponding symbol =
version
> > changes as well (which will automatically be recorded in the binary=
).
>=20
> Yes, the question is specifically about packaging.
>=20
> If the answer is "Debian does not prevent you from downgrading glibc,
> even if you have new packages built against the new glibc", then I
> accept that.
>=20

With the correct shlibs and symbol files, all packages built against th=
e
new glibc will depends on libc6 (>=3D 2.10). This way it won't be possi=
ble
to downgrade the libc6 packages is packages compiled against the new
glibc are installed.

--=20
Aurelien Jarno	                        GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net
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On Wed, Sep 2, 2009 at 10:55 AM, Aurelien Jarno<aurelien@aurel32.net> w=
rote:
> On Wed, Sep 02, 2009 at 10:09:22AM -0400, Carlos O'Donell wrote:
>> On Tue, Sep 1, 2009 at 8:03 PM, Mike Frysinger<vapier@gentoo.org> wr=
ote:
>> > i think the question was one about packaging rather than general u=
se ? =A0if you
>> > build a package against a newer glibc version but it only uses old=
er symbols,
>> > then in theory it should work fine with older glibc versions. =A0i=
f the symbol
>> > changes between versions, then it should have corresponding symbol=
 version
>> > changes as well (which will automatically be recorded in the binar=
y).
>>
>> Yes, the question is specifically about packaging.
>>
>> If the answer is "Debian does not prevent you from downgrading glibc=
,
>> even if you have new packages built against the new glibc", then I
>> accept that.
>>
>
> With the correct shlibs and symbol files, all packages built against =
the
> new glibc will depends on libc6 (>=3D 2.10). This way it won't be pos=
sible
> to downgrade the libc6 packages is packages compiled against the new
> glibc are installed.

Is the shlibs sufficient? For example, data structures aren't
versioned. In my new NPTL patches, I change PTHREAD_COND_INITIALIZER,
but I do not version anything (not required because the current
functions support both old and new style initializers), therefore the
symbol files will be identical?

Thanks a lot for your help in answering my debian related packaging que=
stions.

Cheers,
Carlos.
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From - Thu Nov 08 21:04:50 2018
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From: Aurelien Jarno <aurelien@aurel32.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.debian.devel.glibc
Subject: Re: hppa nptl switch
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Cc: Mike Frysinger <vapier@gentoo.org>, debian-hppa@lists.debian.org,
	debian-glibc@lists.debian.org,
	linux-parisc <linux-parisc@vger.kernel.org>
To: Carlos O'Donell <carlos@systemhalted.org>
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Carlos O'Donell a =E9crit :
> On Wed, Sep 2, 2009 at 10:55 AM, Aurelien Jarno<aurelien@aurel32.net>=
 wrote:
>> On Wed, Sep 02, 2009 at 10:09:22AM -0400, Carlos O'Donell wrote:
>>> On Tue, Sep 1, 2009 at 8:03 PM, Mike Frysinger<vapier@gentoo.org> w=
rote:
>>>> i think the question was one about packaging rather than general u=
se ?  if you
>>>> build a package against a newer glibc version but it only uses old=
er symbols,
>>>> then in theory it should work fine with older glibc versions.  if =
the symbol
>>>> changes between versions, then it should have corresponding symbol=
 version
>>>> changes as well (which will automatically be recorded in the binar=
y).
>>> Yes, the question is specifically about packaging.
>>>
>>> If the answer is "Debian does not prevent you from downgrading glib=
c,
>>> even if you have new packages built against the new glibc", then I
>>> accept that.
>>>
>> With the correct shlibs and symbol files, all packages built against=
 the
>> new glibc will depends on libc6 (>=3D 2.10). This way it won't be po=
ssible
>> to downgrade the libc6 packages is packages compiled against the new
>> glibc are installed.
>=20
> Is the shlibs sufficient? For example, data structures aren't
> versioned. In my new NPTL patches, I change PTHREAD_COND_INITIALIZER,
> but I do not version anything (not required because the current
> functions support both old and new style initializers), therefore the
> symbol files will be identical?
>=20

Yes, but we can change the symbol files so that all versions of all
symbols (for current symbols) resolve to libc6 (>=3D 2.10). This has
already been done for example for the sparc v8 to sparc v8plus ABI chan=
ge.

--=20
Aurelien Jarno                          GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.next,gmane.linux.kernel
Subject: linux-next: manual merge of the security-testing tree with the
 parisc tree
Date: Thu, 3 Sep 2009 15:46:36 +1000
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Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
	David Howells <dhowells@redhat.com>,
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To: James Morris <jmorris@namei.org>
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Hi James,

Today's linux-next merge of the security-testing tree got conflicts in
arch/parisc/include/asm/thread_info.h, arch/parisc/kernel/entry.S and
arch/parisc/kernel/signal.c between commit 9f4259771faf1ffd99888796d925adae=
4c93630b ("parisc: add TIF_NOTIFY_RESUME and use tracehook_notify_resume") =
from the parisc tree and
commits d0420c83f39f79afb82010c2d2cafd150eef651b ("KEYS: Extend
TIF_NOTIFY_RESUME to (almost) all architectures [try #6]") and
ee18d64c1f632043a02e6f5ba5e045bb26a5465f ("KEYS: Add a keyctl to install
a process's session keyring on its parent [try #6]") from the
security-testing tree.

Overlapping changes.  I fixed it up (using the parisc versions and adding
the extra change from the latter security-testing patch) and can carry
the fixes as necessary.
--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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From: Artem Alimarine <artem.alimarine@stromasys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: unaligned accesses in apply_relocate_add
Date: Sat, 05 Sep 2009 00:37:07 +0200
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> You might also look at Aries PA-RISC emulator (on ia64):
>     http://www.princeton.edu/~rblee/ELE572Papers/PARISCtoIA64.htm
>   
Thanks for the reference. There is also a HPPA version of QEMU. Unlike 
them we emulate the whole system hardware. At this moment it is an 
rp24xx system including the ASTRO/ELROY stuff and the NCR SCSI 
controller. We will also add a DE500 ethernet. This means that you can 
install Linux from an ISO image in the emulator like you normally 
install your system from a CD. The goal is to run MPE eventually. Our 
emulator runs on PC x64 in Windows (shame on me).

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From: Tim Abbott <tabbott@ksplice.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 1/2] parisc: Clean up linker script using new linker script macros.
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Cc: Sam Ravnborg <sam@ravnborg.org>, Tim Abbott <tabbott@ksplice.com>,
	Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
	linux-parisc@vger.kernel.org
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This patch has the (likely harmless) side effect of moving
.data.init_task inside the _edata.

It also changes the alignment of .data.init_task from 16384 to
THREAD_SIZE, which can in some configurations be larger than 16384.  I
believe that this change fixes a potential bug on those
configurations.

Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 arch/parisc/kernel/vmlinux.lds.S |   79 ++------------------------------------
 1 files changed, 4 insertions(+), 75 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index fd2cc4f..b2916d8 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -77,13 +77,7 @@ SECTIONS
 	 */
 	. = ALIGN(PAGE_SIZE);
 	data_start = .;
-	. = ALIGN(16);
-	/* Exception table */
-	__ex_table : {
-		__start___ex_table = .;
-		*(__ex_table)
-		__stop___ex_table = .;
-	}
+	EXCEPTION_TABLE(16)
 
 	NOTES
 
@@ -94,23 +88,8 @@ SECTIONS
 		__stop___unwind = .;
 	}
 
-	/* rarely changed data like cpu maps */
-	. = ALIGN(16);
-	.data.read_mostly : {
-		*(.data.read_mostly)
-	}
-
-	. = ALIGN(L1_CACHE_BYTES);
 	/* Data */
-	.data : {
-		DATA_DATA
-		CONSTRUCTORS
-	}
-
-	. = ALIGN(L1_CACHE_BYTES);
-	.data.cacheline_aligned : {
-		*(.data.cacheline_aligned)
-	}
+	RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
 
 	/* PA-RISC locks requires 16-byte alignment */
 	. = ALIGN(16);
@@ -118,17 +97,6 @@ SECTIONS
 		*(.data.lock_aligned)
 	}
 
-	/* nosave data is really only used for software suspend...it's here
-	 * just in case we ever implement it
-	 */
-	. = ALIGN(PAGE_SIZE);
-	__nosave_begin = .;
-	.data_nosave : {
-		*(.data.nosave)
-	}
-	. = ALIGN(PAGE_SIZE);
-	__nosave_end = .;
-
 	/* End of data section */
 	_edata = .;
 
@@ -147,14 +115,6 @@ SECTIONS
 	}
 	__bss_stop = .;
 
-
-	/* assembler code expects init_task to be 16k aligned */
-	. = ALIGN(16384);
-	/* init_task */
-	.data.init_task : {
-		*(.data.init_task)
-	}
-
 #ifdef CONFIG_64BIT
 	. = ALIGN(16);
 	/* Linkage tables */
@@ -172,31 +132,8 @@ SECTIONS
 	/* reserve space for interrupt stack by aligning __init* to 16k */
 	. = ALIGN(16384);
 	__init_begin = .;
-	.init.text : { 
-		_sinittext = .;
-		INIT_TEXT
-		_einittext = .;
-	}
-	.init.data : {
-		INIT_DATA
-	}
-	. = ALIGN(16);
-	.init.setup : {
-		__setup_start = .;
-		*(.init.setup)
-		__setup_end = .;
-	}
-	.initcall.init : {
-		__initcall_start = .;
-		INITCALLS
-		__initcall_end = .;
-	}
-	.con_initcall.init : {
-		__con_initcall_start = .;
-		*(.con_initcall.init)
-		__con_initcall_end = .;
-	}
-	SECURITY_INIT
+	INIT_TEXT_SECTION(16384)
+	INIT_DATA_SECTION(16)
 
 	/* alternate instruction replacement.  This is a mechanism x86 uses
 	 * to detect the CPU type and replace generic instruction sequences
@@ -222,14 +159,6 @@ SECTIONS
 	.exit.data : {
 		EXIT_DATA
 	}
-#ifdef CONFIG_BLK_DEV_INITRD
-	. = ALIGN(PAGE_SIZE);
-	.init.ramfs : {
-		__initramfs_start = .;
-		*(.init.ramfs)
-		__initramfs_end = .;
-	}
-#endif
 
 	PERCPU(PAGE_SIZE)
 	. = ALIGN(PAGE_SIZE);
-- 
1.6.3.3

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Subject: [PATCH 2/2] parisc: Remove useless altinstructions code copied from x86.
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Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 arch/parisc/kernel/vmlinux.lds.S |   25 -------------------------
 1 files changed, 0 insertions(+), 25 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index b2916d8..6ff3f00 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -135,31 +135,6 @@ SECTIONS
 	INIT_TEXT_SECTION(16384)
 	INIT_DATA_SECTION(16)
 
-	/* alternate instruction replacement.  This is a mechanism x86 uses
-	 * to detect the CPU type and replace generic instruction sequences
-	 * with CPU specific ones.  We don't currently do this in PA, but
-	 * it seems like a good idea...
-	 */
-	. = ALIGN(4);
-	.altinstructions : {
-		__alt_instructions = .;
-		*(.altinstructions)
-		__alt_instructions_end = .; 
-	} 
-	.altinstr_replacement : {
-		*(.altinstr_replacement)
-	} 
-
-	/* .exit.text is discard at runtime, not link time, to deal with references
-	 *  from .altinstructions and .eh_frame
-	 */
-	.exit.text : {
-		EXIT_TEXT
-	}
-	.exit.data : {
-		EXIT_DATA
-	}
-
 	PERCPU(PAGE_SIZE)
 	. = ALIGN(PAGE_SIZE);
 	__init_end = .;
-- 
1.6.3.3


From - Thu Nov 08 21:04:51 2018
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From: Thibaut VARENE <varenet@debian.org>
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Subject: Re: Any way to emulate hppa? Was: gforth FTBFS on hppa
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On Mon, Sep 7, 2009 at 5:08 PM, Carlos O'Donell<carlos@systemhalted.org> wrote:

> There are hppa developers who can give you access to an hppa machine
> for testing.
>
> Thibaut, do you have an hppa machine for Peter to run some tests on?

If it's still necessary after Frans' offer, I do ;-)
requirements for access are listed here:
http://www.fr.parisc-linux.org/cluster.html section ESIEE Test Ring.

HTH

-- 
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http://www.parisc-linux.org/~varenet/
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Subject: Re: Any way to emulate hppa? Was: gforth FTBFS on hppa
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On Mon, Sep 7, 2009 at 9:36 AM, Peter Pentchev<roam@ringlet.net> wrote:
> Now, a package of mine, gforth, has been exhibiting a weird FTBFS on
> the hppa architecture; it breaks in the GNU configure stage, trying to
> compile a series of programs that do a binary search to determine
> sizeof(char *).

Peter,

I'm a debian-hppa porter, do you have a test case along with a clear
description of the problem?

There are hppa developers who can give you access to an hppa machine
for testing.

Thibaut, do you have an hppa machine for Peter to run some tests on?

Cheers,
Carlos.
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From - Thu Nov 08 21:04:51 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.devel.glibc,gmane.linux.debian.ports.hppa
Subject: Transition hppa from linuxthreads to nptl is ready to proceed.
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To: GNU Libc Maintainers <debian-glibc@lists.debian.org>,
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Aurelian,

The following patches implement version 2 of the NPTL upgrade for
hppa. This second version is a rewrite of internal pthread structures
and is 100% ABI backwards compatible. All old applications will run
with the new glibc, including during partial upgrades.

I have tested the following patches with eglibc_2.10.1-0exp1, the
testing has included the standard glibc regression testing, simulation
of partial upgrades, and heavy chroot testing with Xnest, and several
large multithreaded UI applications (evince, xchat, nautilus,
gnome-session etc). All tests succeeded.

* Please add the following patch to the hppa set of patches:
http://www.parisc-linux.org/~carlos/debian-final_glibc-ports-hppa-nptl.diff

* Please use this exepcted testsuite failures file:
http://www.parisc-linux.org/~carlos/debian-final_expected-results-hppa-linux-gnu-libc

* Please remove the hppa/local-nptl-compat.diff patch from the patch series.

* Please enable nptl in sysdeps/hppa.mk.

Feel free to roll out the nptl upgrade whenever is convenient for you.
I will be checking in an identical patch to glibc ports later tonight.

Please email me directly if anything is wrong or you need help.

Grant, Petr, Aurelian, thank you for reviewing this patch.

Cheers,
Carlos.
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From - Thu Nov 08 21:04:51 2018
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From: Domenico Andreoli <cavok@debian.org>
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Subject: Re: Transition hppa from linuxthreads to nptl is ready to proceed.
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On Tue, Sep 08, 2009 at 12:34:29AM +0200, Frans Pop wrote:
> Carlos O'Donell wrote:
> > I have tested the following patches with eglibc_2.10.1-0exp1, the
> > testing has included the standard glibc regression testing, simulation
> > of partial upgrades, and heavy chroot testing with Xnest, and several
> > large multithreaded UI applications (evince, xchat, nautilus,
> > gnome-session etc). All tests succeeded.
> 
> Congratulations Carlos. Excellent job!
> 
> Many thanks to you and all others who have worked (and are working) on 
> this.

Really Cool. Thank you.

cheers,
Domenico

-----[ Domenico Andreoli, aka cavok
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From - Thu Nov 08 21:04:51 2018
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Subject: Re: Transition hppa from linuxthreads to nptl is ready to proceed.
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On Monday 07 September 2009 17:54:01 Carlos O'Donell wrote:
> The following patches implement version 2 of the NPTL upgrade for
> hppa. This second version is a rewrite of internal pthread structures
> and is 100% ABI backwards compatible. All old applications will run
> with the new glibc, including during partial upgrades.
>=20
> I have tested the following patches with eglibc_2.10.1-0exp1, the
> testing has included the standard glibc regression testing, simulation
> of partial upgrades, and heavy chroot testing with Xnest, and several
> large multithreaded UI applications (evince, xchat, nautilus,
> gnome-session etc). All tests succeeded.
>=20
> * Please add the following patch to the hppa set of patches:
> http://www.parisc-linux.org/~carlos/debian-final_glibc-ports-hppa-nptl.di=
ff

any reason for not pushing this (and all the other hppa patches) to the gli=
bc=20
ports tree ?  it isnt like you'll be breaking anything that isnt already=20
broken, and it'll make it easier for people to play with mainline glibc.
=2Dmike

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From - Thu Nov 08 21:04:51 2018
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Subject: Re: Transition hppa from linuxthreads to nptl is ready to proceed.
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On Tue, Sep 8, 2009 at 1:57 PM, Mike Frysinger<vapier@gentoo.org> wrote=
:
> On Monday 07 September 2009 17:54:01 Carlos O'Donell wrote:
>> The following patches implement version 2 of the NPTL upgrade for
>> hppa. This second version is a rewrite of internal pthread structure=
s
>> and is 100% ABI backwards compatible. All old applications will run
>> with the new glibc, including during partial upgrades.
>>
>> I have tested the following patches with eglibc_2.10.1-0exp1, the
>> testing has included the standard glibc regression testing, simulati=
on
>> of partial upgrades, and heavy chroot testing with Xnest, and severa=
l
>> large multithreaded UI applications (evince, xchat, nautilus,
>> gnome-session etc). All tests succeeded.
>>
>> * Please add the following patch to the hppa set of patches:
>> http://www.parisc-linux.org/~carlos/debian-final_glibc-ports-hppa-np=
tl.diff
>
> any reason for not pushing this (and all the other hppa patches) to t=
he glibc
> ports tree ? =A0it isnt like you'll be breaking anything that isnt al=
ready
> broken, and it'll make it easier for people to play with mainline gli=
bc.

It would have been upstream *before* the email went out, but my git-fu
is incredibly weak.

I've been talking to Roland about my problems with pushing upstream
(and the accidental branch I created on glibc.git).

git push -v
Pushing to git://sourceware.org/git/glibc-ports.git
fatal: The remote end hung up unexpectedly

git remote show origin
* remote origin
  URL: git://sourceware.org/git/glibc-ports.git
  HEAD branch: master
=2E..
  Local branch configured for 'git pull':
    master merges with remote master
  Local ref configured for 'git push':
    master pushes to master (fast forwardable)

I don't know what's wrong here. AFAICT it should just work, I've been
using `git pull --rebase` to keep my repo updated.

Cheers,
Carlos.
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From - Thu Nov 08 21:04:51 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.file-systems
Subject: xfs failure on parisc (and presumably other VI cache systems)
 caused by I/O to vmalloc/vmap areas
Date: Tue, 08 Sep 2009 13:27:49 -0500
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This bug was observed on parisc, but I would expect it to affect all
architectures with virtually indexed caches.

The inception of this problem is the changes we made to block and SCSI
to eliminate the special case path for kernel buffers.  This change
forced every I/O to go via the full scatter gather processing.  In this
way we thought we'd removed the restrictions about using vmalloc/vmap
areas for I/O from the kernel. XFS acually took advantage of this, hence
the problems.

Actually, if you look at the implementation of blk_rq_map_kern(), it
still won't accept vmalloc pages on most architectures because
virt_to_page() assumes an offset mapped page ... x86 actually has a bug
on for the vmalloc case if you enable DEBUG_VIRTUAL).  The only reason
xfs gets away with this is because it builds the vmalloc'd bio manually,
essentially open coding blk_rq_map_kern().

The problem comes because by the time we get to map scatter gather
lists, all we have is the page, we've lost the virtual address.  There's
a macro: sg_virt() which claims to recover the virtual address, but all
it really does is provide the offset map of the page physical address.
This means that sg_virt() returns a different address from the one the
page was actually used by if it's in a vmalloc/vmap area (because we
remapped the page within the kernel virtual address space).  This means
that for virtually indexed caches, we end up flushing the wrong page
alias ... and hence corrupting data because we do DMA with a possibly
dirty cache line set above the page.

The generic fix is simple:  flush the potentially dirty page along the
correct cache alias before feeding it into the block routines and losing
the alias address information.

The slight problem is that we don't have an API to handle this ...
flush_kernel_dcache_page() would be the correct one except that it only
takes a page as the argument, not the virtual address.  So, I propose as
part of this change to introduce a new API:  flush_kernel_dcache_addr()
which performs exactly the same as flush_kernel_dcache_page except that
it flushes through the provided virtual address (whether offset mapped
or mapped via vmalloc/vmap).

I'll send out the patch series as a reply to this email.

James



From - Thu Nov 08 21:04:51 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Transition hppa from linuxthreads to nptl is ready to proceed.
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On Tue, Sep 8, 2009 at 2:04 PM, Carlos O'Donell<carlos@systemhalted.org> wrote:
> git push -v
> Pushing to git://sourceware.org/git/glibc-ports.git
> fatal: The remote end hung up unexpectedly

Oh gosh this was lame, I kept checking out "git://" urls when I meant
to checkout the "ssh://" url.

Checking out the "ssh://" url (for which I have keys to sourceware)
allowed me to checkin the patches.

Checked in here:
http://sourceware.org/git/?p=glibc-ports.git;a=commit;h=be0f2008ac41c83db39d1d1112c0392dbb8b18e9

Cheers,
Carlos.
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From - Thu Nov 08 21:04:52 2018
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From: Russell King <rmk@arm.linux.org.uk>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.file-systems,gmane.linux.kernel.cross-arch
Subject: Re: xfs failure on parisc (and presumably other VI cache systems)
	caused by I/O to vmalloc/vmap areas
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On Tue, Sep 08, 2009 at 01:27:49PM -0500, James Bottomley wrote:
> This bug was observed on parisc, but I would expect it to affect all
> architectures with virtually indexed caches.

I don't think your proposed solution will work for ARM with speculative
prefetching (iow, the latest ARM CPUs.)  If there is a mapping present,
it can be speculatively prefetched from at any time - the CPU designers
have placed no bounds on the amount of speculative prefetching which
may be present in a design.

What this means that for DMA, we will need to handle cache coherency
issues both before and after DMA.

If we're going to allow non-direct mapped (offset mapped in your parlence)
block IO, it makes it impossible to handle cache coherency after DMA
completion - although we can translate (via page table walks) from a
virtual address to a physical, and then to a bus address for DMA, going
back the other way is impossible since there could be many right answers.

What has been annoying me for a while about the current DMA API is that
drivers have to carry around all sorts of information for a DMA mapping,
whether the architecture needs it or not - and sometimes that information
is not what the architecture wants.  To this end, I've been thinking that
something more like:

	struct dma_mapping map;

	err = dma2_map_single(&map, buffer, size, direction);
	if (err)
		...

	addr = dma2_addr(&map);
	/* program controller */

	/* completion */
	dma2_unmap_single(&map);

with similar style interfaces for pages and so forth (scatterlists are
already arch-defined.)  Architectures define the contents of
struct dma_mapping - but it must contain at least the dma address.

What's the advantage of this?  It means that if an architecture needs to
handle cache issues after DMA on unmap via a virtual address, it can
ensure that the correct address is passed through all the way to the
unmap function.  This approach also relieves the driver writer from
having to carry around the direction, size and dma address themselves,
which means we don't need the DMA debug infrastructure to check that
drivers are doing these things correctly.

I seriously doubt, though, that we can revise the DMA API...

In your (and my) case, maybe struct scatterlist also needs to contain
the virtual address as well as the struct page, offset and length?


PS, ARM already does not allow anything but direct-mapped RAM addresses
for dma_map_single(), since we need to be able to translate virtual
addresses to physical for non-coherent L2 cache handling - L1 cache
needs handling via the virtual address and L2 via the physical address.


PPS, you're not the only architecture which has problems with XFS.  ARM
has a long standing issue with it too.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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From - Thu Nov 08 21:04:52 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.file-systems
Subject: Re: xfs failure on parisc (and presumably other VI cache systems)
 caused by I/O to vmalloc/vmap areas
Date: Tue, 08 Sep 2009 19:11:52 +0000
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On Tue, 2009-09-08 at 20:00 +0100, Russell King wrote:
> On Tue, Sep 08, 2009 at 01:27:49PM -0500, James Bottomley wrote:
> > This bug was observed on parisc, but I would expect it to affect all
> > architectures with virtually indexed caches.
> 
> I don't think your proposed solution will work for ARM with speculative
> prefetching (iow, the latest ARM CPUs.)  If there is a mapping present,
> it can be speculatively prefetched from at any time - the CPU designers
> have placed no bounds on the amount of speculative prefetching which
> may be present in a design.

The architecturally prescribed fix for this on parisc is to purge the
TLB entry as well.  Without a TLB entry, the CPU is forbidden from doing
speculative reads.  This obviously works only as long as the kernel
never touches the page during DMA, of course ...

Isn't this also true for arm?

> What this means that for DMA, we will need to handle cache coherency
> issues both before and after DMA.
> 
> If we're going to allow non-direct mapped (offset mapped in your parlence)
> block IO, it makes it impossible to handle cache coherency after DMA
> completion - although we can translate (via page table walks) from a
> virtual address to a physical, and then to a bus address for DMA, going
> back the other way is impossible since there could be many right answers.
> 
> What has been annoying me for a while about the current DMA API is that
> drivers have to carry around all sorts of information for a DMA mapping,
> whether the architecture needs it or not - and sometimes that information
> is not what the architecture wants.  To this end, I've been thinking that
> something more like:
> 
> 	struct dma_mapping map;
> 
> 	err = dma2_map_single(&map, buffer, size, direction);
> 	if (err)
> 		...
> 
> 	addr = dma2_addr(&map);
> 	/* program controller */
> 
> 	/* completion */
> 	dma2_unmap_single(&map);
> 
> with similar style interfaces for pages and so forth (scatterlists are
> already arch-defined.)  Architectures define the contents of
> struct dma_mapping - but it must contain at least the dma address.
> 
> What's the advantage of this?  It means that if an architecture needs to
> handle cache issues after DMA on unmap via a virtual address, it can
> ensure that the correct address is passed through all the way to the
> unmap function.  This approach also relieves the driver writer from
> having to carry around the direction, size and dma address themselves,
> which means we don't need the DMA debug infrastructure to check that
> drivers are doing these things correctly.
> 
> I seriously doubt, though, that we can revise the DMA API...

Actually, there's a more fundamental problem.  I did think of doing it
this way initially.  However, most of the dma_map..() cases come down
from block and have already lost all idea of what the virtual address
was and where it came from ... so there's an awful lot more work to do
to make them carry it through to dma_map...()

> In your (and my) case, maybe struct scatterlist also needs to contain
> the virtual address as well as the struct page, offset and length?
> 
> 
> PS, ARM already does not allow anything but direct-mapped RAM addresses
> for dma_map_single(), since we need to be able to translate virtual
> addresses to physical for non-coherent L2 cache handling - L1 cache
> needs handling via the virtual address and L2 via the physical address.
> 
> 
> PPS, you're not the only architecture which has problems with XFS.  ARM
> has a long standing issue with it too.

Well, the good news is that I can fix it to work on parisc.

James



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From: Russell King <rmk@arm.linux.org.uk>
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Subject: Re: xfs failure on parisc (and presumably other VI cache systems)
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On Tue, Sep 08, 2009 at 07:11:52PM +0000, James Bottomley wrote:
> On Tue, 2009-09-08 at 20:00 +0100, Russell King wrote:
> > On Tue, Sep 08, 2009 at 01:27:49PM -0500, James Bottomley wrote:
> > > This bug was observed on parisc, but I would expect it to affect all
> > > architectures with virtually indexed caches.
> > 
> > I don't think your proposed solution will work for ARM with speculative
> > prefetching (iow, the latest ARM CPUs.)  If there is a mapping present,
> > it can be speculatively prefetched from at any time - the CPU designers
> > have placed no bounds on the amount of speculative prefetching which
> > may be present in a design.
> 
> The architecturally prescribed fix for this on parisc is to purge the
> TLB entry as well.  Without a TLB entry, the CPU is forbidden from doing
> speculative reads.  This obviously works only as long as the kernel
> never touches the page during DMA, of course ...
> 
> Isn't this also true for arm?

There appears to be nothing architected along those lines for ARM.
>From the architectural point of view, any "normal memory" mapping is
a candidate for speculative accesses provided access is permitted via
the page permissions.

In other words, if the CPU is permitted to access a memory page, it
is a candidate for speculative accesses.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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From - Thu Nov 08 21:04:52 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.file-systems,gmane.linux.kernel.cross-arch
Subject: Re: xfs failure on parisc (and presumably other VI cache systems)
 caused by I/O to vmalloc/vmap areas
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On Tue, 2009-09-08 at 21:16 +0100, Russell King wrote:
> On Tue, Sep 08, 2009 at 07:11:52PM +0000, James Bottomley wrote:
> > On Tue, 2009-09-08 at 20:00 +0100, Russell King wrote:
> > > On Tue, Sep 08, 2009 at 01:27:49PM -0500, James Bottomley wrote:
> > > > This bug was observed on parisc, but I would expect it to affect all
> > > > architectures with virtually indexed caches.
> > > 
> > > I don't think your proposed solution will work for ARM with speculative
> > > prefetching (iow, the latest ARM CPUs.)  If there is a mapping present,
> > > it can be speculatively prefetched from at any time - the CPU designers
> > > have placed no bounds on the amount of speculative prefetching which
> > > may be present in a design.
> > 
> > The architecturally prescribed fix for this on parisc is to purge the
> > TLB entry as well.  Without a TLB entry, the CPU is forbidden from doing
> > speculative reads.  This obviously works only as long as the kernel
> > never touches the page during DMA, of course ...
> > 
> > Isn't this also true for arm?
> 
> There appears to be nothing architected along those lines for ARM.
> From the architectural point of view, any "normal memory" mapping is
> a candidate for speculative accesses provided access is permitted via
> the page permissions.
> 
> In other words, if the CPU is permitted to access a memory page, it
> is a candidate for speculative accesses.

So the parisc architectural feature is simply a statement of fact for VI
cache architectures: if you don't have a TLB entry for a page, you can't
do cache operations for it.  We have a software TLB interrupt and the
CPU can't interrupt for a speculation, so it's restricted to the
existing TLB entries in its cache for speculative move ins.

So now we know what the problem is, if arm can't operate this way,
what's your suggestion for fixing this ... I take it you have a DMA
coherence index like we do that flushes the cache on DMA ops?

James


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From - Thu Nov 08 21:04:52 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Booting 64-bit SMP 2.6.31-rc5 on a 2-way pa8700 box.
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It works. Thank you :-)

carlos@firin:~$ uname -a
Linux firin 2.6.31-rc5 #2 SMP Tue Sep 8 13:44:35 EDT 2009 parisc64 GNU/Linux
carlos@firin:~$

Cheers,
Carlos.
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Subject: Re: xfs failure on parisc (and presumably other VI cache systems)
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On Tue, Sep 08, 2009 at 08:39:12PM +0000, James Bottomley wrote:
> On Tue, 2009-09-08 at 21:16 +0100, Russell King wrote:
> > On Tue, Sep 08, 2009 at 07:11:52PM +0000, James Bottomley wrote:
> > > The architecturally prescribed fix for this on parisc is to purge the
> > > TLB entry as well.  Without a TLB entry, the CPU is forbidden from doing
> > > speculative reads.  This obviously works only as long as the kernel
> > > never touches the page during DMA, of course ...
> > > 
> > > Isn't this also true for arm?
> > 
> > There appears to be nothing architected along those lines for ARM.
> > From the architectural point of view, any "normal memory" mapping is
> > a candidate for speculative accesses provided access is permitted via
> > the page permissions.
> > 
> > In other words, if the CPU is permitted to access a memory page, it
> > is a candidate for speculative accesses.
> 
> So the parisc architectural feature is simply a statement of fact for VI
> cache architectures: if you don't have a TLB entry for a page, you can't
> do cache operations for it.

That is also true for ARM - you can't perform cache maintainence on a
page without there being a valid page table entry...

> We have a software TLB interrupt and the
> CPU can't interrupt for a speculation, so it's restricted to the
> existing TLB entries in its cache for speculative move ins.

though this is where we differ, since the hardware walks the page tables
and doesn't require any interrupts to do this.

> So now we know what the problem is, if arm can't operate this way,
> what's your suggestion for fixing this ... I take it you have a DMA
> coherence index like we do that flushes the cache on DMA ops?

DMA on ARM continues to be totally non-coherent with the caches.  There
is no hardware help with this.  So, with these speculative accessing
CPUs, we will need to do software cache maintainence both before _and_
after the DMA in the case of DMA from device.

Maintainence before the DMA is required to ensure that the cache
doesn't write out dirty cache lines to the region which is being
DMA'd to.  Maintainence after the DMA is needed to invalidate any
stale data, whether it be pre-existing or speculatively loaded.

What this means is that we need to have the correct virtual address
in the unmap operation to ensure that subsequent CPU reads access
the newly DMA'd data.

The alternative solution I can see is to ensure that subsystems which
do DMA from (eg) vmalloc'd regions are not selectable for ARM.

It's also worth noting that we do have this restriction already in
place across _all_ ARM CPUs for the DMA APIs which take virtual
addresses - we only accept direct mapped kernel addresses via
those APIs since we use virt_to_phys() for L2 cache maintainence.
Walking page tables, especially with high PTE support (ARM has
joined those architectures supporting highmem), sounds to me very
unfunny.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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Does anyone know if it's safe to disable CONFIG_SYSFS_DEPRECATED_V2
for kernels running on debian?

Do the debian tools support the new sysfs layout?

Cheers,
Carlos.
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On Tue, 2009-09-08 at 23:00 -0400, Carlos O'Donell wrote:
> Does anyone know if it's safe to disable CONFIG_SYSFS_DEPRECATED_V2
> for kernels running on debian?
> 
> Do the debian tools support the new sysfs layout?

Seems so ... I've got it unset on my debian testing systems.

James


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From - Thu Nov 08 21:04:52 2018
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On Tue, 2009-09-08 at 22:39 +0100, Russell King wrote:
> On Tue, Sep 08, 2009 at 08:39:12PM +0000, James Bottomley wrote:
> > On Tue, 2009-09-08 at 21:16 +0100, Russell King wrote:
> > > On Tue, Sep 08, 2009 at 07:11:52PM +0000, James Bottomley wrote:
> > > > The architecturally prescribed fix for this on parisc is to purge the
> > > > TLB entry as well.  Without a TLB entry, the CPU is forbidden from doing
> > > > speculative reads.  This obviously works only as long as the kernel
> > > > never touches the page during DMA, of course ...
> > > > 
> > > > Isn't this also true for arm?
> > > 
> > > There appears to be nothing architected along those lines for ARM.
> > > From the architectural point of view, any "normal memory" mapping is
> > > a candidate for speculative accesses provided access is permitted via
> > > the page permissions.
> > > 
> > > In other words, if the CPU is permitted to access a memory page, it
> > > is a candidate for speculative accesses.
> > 
> > So the parisc architectural feature is simply a statement of fact for VI
> > cache architectures: if you don't have a TLB entry for a page, you can't
> > do cache operations for it.
> 
> That is also true for ARM - you can't perform cache maintainence on a
> page without there being a valid page table entry...
> 
> > We have a software TLB interrupt and the
> > CPU can't interrupt for a speculation, so it's restricted to the
> > existing TLB entries in its cache for speculative move ins.
> 
> though this is where we differ, since the hardware walks the page tables
> and doesn't require any interrupts to do this.
> 
> > So now we know what the problem is, if arm can't operate this way,
> > what's your suggestion for fixing this ... I take it you have a DMA
> > coherence index like we do that flushes the cache on DMA ops?
> 
> DMA on ARM continues to be totally non-coherent with the caches.  There
> is no hardware help with this.  So, with these speculative accessing
> CPUs, we will need to do software cache maintainence both before _and_
> after the DMA in the case of DMA from device.
> 
> Maintainence before the DMA is required to ensure that the cache
> doesn't write out dirty cache lines to the region which is being
> DMA'd to.  Maintainence after the DMA is needed to invalidate any
> stale data, whether it be pre-existing or speculatively loaded.
> 
> What this means is that we need to have the correct virtual address
> in the unmap operation to ensure that subsequent CPU reads access
> the newly DMA'd data.
> 
> The alternative solution I can see is to ensure that subsystems which
> do DMA from (eg) vmalloc'd regions are not selectable for ARM.
> 
> It's also worth noting that we do have this restriction already in
> place across _all_ ARM CPUs for the DMA APIs which take virtual
> addresses - we only accept direct mapped kernel addresses via
> those APIs since we use virt_to_phys() for L2 cache maintainence.
> Walking page tables, especially with high PTE support (ARM has
> joined those architectures supporting highmem), sounds to me very
> unfunny.

OK, so we can work with that.  This series of patches introduces both a
flush and an invalidate (one for pre and one for post).  With this, I'm
able to successfully use xfs filesystems on parisc (before, they mostly
refuse to mount because of journal corruption).

James



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On Virtually Indexed architectures (which don't do automatic alias
resolution in their caches), we have to flush via the correct
virtual address to prepare pages for DMA.  On some architectures
(like arm) we cannot prevent the CPU from doing data movein along
the alias (and thus giving stale read data), so we not only have to
introduce a flush API to push dirty cache lines out, but also an invalidate
API to kill inconsistent cache lines that may have moved in before
DMA changed the data

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 include/linux/highmem.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 211ff44..9719952 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -17,6 +17,12 @@ static inline void flush_anon_page(struct vm_area_struct *vma, struct page *page
 static inline void flush_kernel_dcache_page(struct page *page)
 {
 }
+static incline void flush_kernel_dcache_addr(void *vaddr)
+{
+}
+static incline void invalidate_kernel_dcache_addr(void *vaddr)
+{
+}
 #endif
 
 #include <asm/kmap_types.h>
-- 
1.6.3.3



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To: Russell King <rmk@arm.linux.org.uk>
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We already have an API to flush a kernel page along an alias
address, so use it.  The TLB purge prevents the CPU from doing
speculative moveins on the flushed address, so we don't need to
implement and invalidate.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/parisc/include/asm/cacheflush.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7243951..2536a00 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -90,6 +90,14 @@ static inline void flush_kernel_dcache_page(struct page *page)
 {
 	flush_kernel_dcache_page_addr(page_address(page));
 }
+static inline void flush_kernel_dcache_addr(void *addr)
+{
+	flush_kernel_dcache_page_addr(addr);
+}
+static inline void invalidate_kernel_dcache_addr(void *addr)
+{
+	/* nop .. the flush prevents move in until the page is touched */
+}
 
 #ifdef CONFIG_DEBUG_RODATA
 void mark_rodata_ro(void);
-- 
1.6.3.3



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From - Thu Nov 08 21:04:52 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.file-systems,gmane.linux.kernel.cross-arch
Subject: [PATCH 3/5] arm: add mm API for DMA to vmalloc/vmap areas
Date: Tue, 08 Sep 2009 22:20:09 -0500
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ARM cannot prevent cache movein, so this patch implements both the
flush and invalidate pieces of the API.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/arm/include/asm/cacheflush.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 1a711ea..1104ee9 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -436,6 +436,16 @@ static inline void flush_kernel_dcache_page(struct page *page)
 	if ((cache_is_vivt() || cache_is_vipt_aliasing()) && !PageHighMem(page))
 		__cpuc_flush_dcache_page(page_address(page));
 }
+static inline void flush_kernel_dcache_addr(void *addr)
+{
+	if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+		__cpuc_flush_dcache_page(addr);
+}
+static inline void invalidate_kernel_dcache_addr(void *addr)
+{
+	if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+		__cpuc_flush_dcache_page(addr);
+}
 
 #define flush_dcache_mmap_lock(mapping) \
 	spin_lock_irq(&(mapping)->tree_lock)
-- 
1.6.3.3



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From - Thu Nov 08 21:04:52 2018
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X-Mozilla-Keys:                                                                                 
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.file-systems,gmane.linux.kernel.cross-arch
Subject: [PATCH 4/5] block: permit I/O to vmalloc/vmap kernel pages
Date: Tue, 08 Sep 2009 22:21:04 -0500
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This updates bio_map_kern() to check for pages in the vmalloc address
range and call the new kernel flushing APIs if the are.  This should
allow any kernel user to pass a vmalloc/vmap area to block.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 fs/bio.c |   19 +++++++++++++++++--
 1 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/fs/bio.c b/fs/bio.c
index 7673800..ea346b4 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1120,6 +1120,13 @@ void bio_unmap_user(struct bio *bio)
 
 static void bio_map_kern_endio(struct bio *bio, int err)
 {
+	void *kaddr = bio->bi_private;
+	if (is_vmalloc_addr(kaddr)) {
+		void *addr;
+		for (addr = kaddr; addr < kaddr + bio->bi_size;
+		     addr += PAGE_SIZE)
+			invalidate_kernel_dcache_addr(addr);
+	}
 	bio_put(bio);
 }
 
@@ -1138,9 +1145,12 @@ static struct bio *__bio_map_kern(struct request_queue *q, void *data,
 	if (!bio)
 		return ERR_PTR(-ENOMEM);
 
+	bio->bi_private = data;
+
 	offset = offset_in_page(kaddr);
 	for (i = 0; i < nr_pages; i++) {
 		unsigned int bytes = PAGE_SIZE - offset;
+		struct page *page;
 
 		if (len <= 0)
 			break;
@@ -1148,8 +1158,13 @@ static struct bio *__bio_map_kern(struct request_queue *q, void *data,
 		if (bytes > len)
 			bytes = len;
 
-		if (bio_add_pc_page(q, bio, virt_to_page(data), bytes,
-				    offset) < bytes)
+		if (is_vmalloc_addr(data)) {
+			flush_kernel_dcache_addr(data);
+			page = vmalloc_to_page(data);
+		} else
+			page = virt_to_page(data);
+
+		if (bio_add_pc_page(q, bio, page, bytes, offset) < bytes)
 			break;
 
 		data += bytes;
-- 
1.6.3.3



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From - Thu Nov 08 21:04:52 2018
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X-Mozilla-Keys:                                                                                 
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.file-systems
Subject: [PATCH 5/5] xfs: fix xfs to work with Virtually Indexed
 architectures
Date: Wed, 09 Sep 2009 03:21:58 +0000
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	Linux Filesystem Mailing List <linux-fsdevel@vger.kernel.org>,
	linux-arch@vger.kernel.org, Christoph Hellwig <hch@lst.de>
To: Russell King <rmk@arm.linux.org.uk>
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xfs_buf.c includes what is essentially a hand rolled version of
blk_rq_map_kern().  In order to work properly with the vmalloc buffers
that xfs uses, this hand rolled routine must also implement the flushing
API for vmap/vmalloc areas.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 fs/xfs/linux-2.6/xfs_buf.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 965df12..62ae977 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1138,6 +1138,10 @@ xfs_buf_bio_end_io(
 	do {
 		struct page	*page = bvec->bv_page;
 
+		if (is_vmalloc_addr(bp->b_addr))
+			invalidate_kernel_dcache_addr(bp->b_addr +
+						      bvec->bv_offset);
+
 		ASSERT(!PagePrivate(page));
 		if (unlikely(bp->b_error)) {
 			if (bp->b_flags & XBF_READ)
@@ -1202,6 +1206,9 @@ _xfs_buf_ioapply(
 		bio->bi_end_io = xfs_buf_bio_end_io;
 		bio->bi_private = bp;
 
+		if (is_vmalloc_addr(bp->b_addr))
+			flush_kernel_dcache_addr(bp->b_addr);
+
 		bio_add_page(bio, bp->b_pages[0], PAGE_CACHE_SIZE, 0);
 		size = 0;
 
@@ -1228,6 +1235,9 @@ next_chunk:
 		if (nbytes > size)
 			nbytes = size;
 
+		if (is_vmalloc_addr(bp->b_addr))
+			flush_kernel_dcache_addr(bp->b_addr + PAGE_SIZE*map_i);
+
 		rbytes = bio_add_page(bio, bp->b_pages[map_i], nbytes, offset);
 		if (rbytes < nbytes)
 			break;
-- 
1.6.3.3




From - Thu Nov 08 21:04:53 2018
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X-Mozilla-Keys:                                                                                 
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.file-systems,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 1/5] mm: add coherence API for DMA to vmalloc/vmap areas
Date: Tue, 08 Sep 2009 22:23:21 -0500
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On Wed, 2009-09-09 at 03:17 +0000, James Bottomley wrote:
> On Virtually Indexed architectures (which don't do automatic alias
> resolution in their caches), we have to flush via the correct
> virtual address to prepare pages for DMA.  On some architectures
> (like arm) we cannot prevent the CPU from doing data movein along
> the alias (and thus giving stale read data), so we not only have to
> introduce a flush API to push dirty cache lines out, but also an invalidate
> API to kill inconsistent cache lines that may have moved in before
> DMA changed the data
> 
> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> ---
>  include/linux/highmem.h |    6 ++++++
>  1 files changed, 6 insertions(+), 0 deletions(-)
> 
> diff --git a/include/linux/highmem.h b/include/linux/highmem.h
> index 211ff44..9719952 100644
> --- a/include/linux/highmem.h
> +++ b/include/linux/highmem.h
> @@ -17,6 +17,12 @@ static inline void flush_anon_page(struct vm_area_struct *vma, struct page *page
>  static inline void flush_kernel_dcache_page(struct page *page)
>  {
>  }
> +static incline void flush_kernel_dcache_addr(void *vaddr)
> +{
> +}
> +static incline void invalidate_kernel_dcache_addr(void *vaddr)
> +{
> +}
>  #endif

OK, so it's been pointed out to me that I didn't compile check this ...
just testing to see everyone is awake ...

James


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On Tue, Sep 08, 2009 at 10:23:21PM -0500, James Bottomley wrote:
> On Wed, 2009-09-09 at 03:17 +0000, James Bottomley wrote:
> > On Virtually Indexed architectures (which don't do automatic alias
> > resolution in their caches), we have to flush via the correct
> > virtual address to prepare pages for DMA.  On some architectures
> > (like arm) we cannot prevent the CPU from doing data movein along
> > the alias (and thus giving stale read data), so we not only have to
> > introduce a flush API to push dirty cache lines out, but also an invalidate
> > API to kill inconsistent cache lines that may have moved in before
> > DMA changed the data
> > 
> > Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> > ---
> >  include/linux/highmem.h |    6 ++++++
> >  1 files changed, 6 insertions(+), 0 deletions(-)
> > 
> > diff --git a/include/linux/highmem.h b/include/linux/highmem.h
> > index 211ff44..9719952 100644
> > --- a/include/linux/highmem.h
> > +++ b/include/linux/highmem.h
> > @@ -17,6 +17,12 @@ static inline void flush_anon_page(struct vm_area_struct *vma, struct page *page
> >  static inline void flush_kernel_dcache_page(struct page *page)
> >  {
> >  }
> > +static incline void flush_kernel_dcache_addr(void *vaddr)
> > +{
> > +}
> > +static incline void invalidate_kernel_dcache_addr(void *vaddr)
> > +{
> > +}
> >  #endif
> 
> OK, so it's been pointed out to me that I didn't compile check this ...
> just testing to see everyone is awake ...
> 
And here I thought it was a new gcc construct along the lines of
inline-if-so-inclined.. :-)
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From - Thu Nov 08 21:04:53 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Disable CONFIG_SYSFS_DEPRECATED_V2?
Date: Wed, 9 Sep 2009 10:03:04 -0400 (EDT)
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> On Tue, 2009-09-08 at 23:00 -0400, Carlos O'Donell wrote:
> > Does anyone know if it's safe to disable CONFIG_SYSFS_DEPRECATED_V2
> > for kernels running on debian?
> > 
> > Do the debian tools support the new sysfs layout?
> 
> Seems so ... I've got it unset on my debian testing systems.

Same here.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Problem with sysrq-t in 2.6.31-rc5?
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While attempting a sysrq-t on 2.6.31-rc5, I got the following panic.

Has anyone seen this before?
~~~
SysRq : Show State
  task                        PC stack   pid father
init          S 0000000040103568     0     1      0 0x00000010
Backtrace:
 [<0000000040115dec>] schedule+0x324/0x938
 [<0000000040175654>] hrtimer_try_to_cancel+0x2c/0xd0
Backtrace:
 [<0000000040290e94>] memcpy+0x2c/0x40


Bad Address (null pointer deref?): Code=15 regs=00000000405a53c0
(Addr=c00007ff9f85cb90)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001110 Not tainted
r00-03  000000ff0806ff0e 00000000405f8c80 0000000000000010 00000000405a4e78
r04-07  000000006fc00000 000000006bc23fd9 0000000000000003 00000000405f8480
r08-11  0000000000000080 0000000073c00008 00000000405253f8 000000000800000e
r12-15  00000000404d9048 000000000800000f 0000000000000002 0000000000000004
r16-19  00000000405a49e9 00000000405a49e8 000000009dc6e9e0 000000004011d370
r20-23  ffffffffffffff60 0000000040175628 00000000ffffff60 000000004047de04
r24-27  00000000401755f8 0000000000000000 0000000040175654 00000000405ebc80
r28-31  ffffffff9f85cb90 0000000037de0000 00000000405a53c0 ffffffff9f85cba0
sr00-03  00000000001f6800 0000000000000000 0000000000000000 00000000001f6800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040127054 0000000040127058
 IIR: 0f8010df    ISR: 000000003ffff800  IOR: c00007ff9f85cb90
 CPU:        0   CR30: 00000000405a4000 CR31: ffdfffffffffffff
 ORIG_R28: 00000000405ebc80
 IAOQ[0]: unwind_once+0x2d4/0x450
 IAOQ[1]: unwind_once+0x2d8/0x450
 RP(r2): 0x10
Backtrace:
 [<0000000040290e94>] memcpy+0x2c/0x40

Kernel panic - not syncing: Bad Address (null pointer deref?)
Backtrace:
Backtrace:
 [<00000000402fdf64>] uart_console_write+0x5c/0xc0


Bad Address (null pointer deref?): Code=15 regs=00000000405a6390
(Addr=c00007ff405a6240)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Not tainted
r00-03  000000ff0804ff0e 00000000405f8c80 0000000000000010 00000000405a5e48
r04-07  000000006fc00000 000000006bc23fd9 0000000000000001 00000000405f8480
r08-11  0000000000000350 0000000073c00008 000000000000000f 000000000800000e
r12-15  00000000404d9048 000000000800000f 0000000000000002 0000000000000004
r16-19  00000000405a53c0 00000000405a49e8 000000009dc6e9e0 000000004011d370
r20-23  ffffffffffffff70 000000004011c424 00000000ffffff70 00000000404793b4
r24-27  000000004011c370 0000000000000000 000000004011c9fc 00000000405ebc80
r28-31  ffffffff405a6240 0000000037de0000 00000000405a6390 ffffffff405a6250
sr00-03  00000000001f6800 0000000000000000 0000000000000000 00000000001f6800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040127054 0000000040127058
 IIR: 0f8010df    ISR: 000000003ffff800  IOR: c00007ff405a6240
 CPU:        0   CR30: 00000000405a4000 CR31: ffdfffffffffffff
 ORIG_R28: 00000000405ebc80
 IAOQ[0]: unwind_once+0x2d4/0x450
 IAOQ[1]: unwind_once+0x2d8/0x450
 RP(r2): 0x10
Backtrace:
 [<00000000402fdf64>] uart_console_write+0x5c/0xc0

Kernel panic - not syncing: Bad Address (null pointer deref?)
Backtrace:
Backtrace:
 [<00000000401154c8>] printk+0x40/0x50
 [<000000004011c8f4>] do_show_stack+0x7c/0xe8
~~~

Cheers,
Carlos.
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From - Thu Nov 08 21:04:53 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.file-systems,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 1/5] mm: add coherence API for DMA to vmalloc/vmap areas
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On Wed, 2009-09-09 at 12:35 +0900, Paul Mundt wrote:
> And here I thought it was a new gcc construct along the lines of
> inline-if-so-inclined.. :-)

Actually, I missed the fact that sh also sets
ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE, so you'll need implementations of
these functions too.  Does this look right?

James

---

diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index 4c5462d..db06611 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -48,6 +48,14 @@ static inline void flush_kernel_dcache_page(struct page *page)
 {
 	flush_dcache_page(page);
 }
+static inline void flush_kernel_dcache_addr(void *addr)
+{
+	__flush_invalidate_region(addr, PAGE_SIZE);
+}
+static inline void invalidate_kernel_dcache_addr(void *addr)
+{
+	__flush_invalidate_region(addr, PAGE_SIZE);
+}
 
 #if defined(CONFIG_CPU_SH4) && !defined(CONFIG_CACHE_OFF)
 extern void copy_to_user_page(struct vm_area_struct *vma,


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Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
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On Sun, Jun 21, 2009 at 11:20 AM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> Looking at my email archive, I see the real cause involves kernel mem=
ory
> maps:
>
> =A0> > > On Wed, May 06, 2009 at 01:39:49PM -0400, John David Anglin =
wrote:
> =A0> > > > > The tombstone is:
> =A0> > > > >
> =A0> > > > > do_page_fault() pid=3D10205 command=3D'strace' type=3D15=
 address=3D0x407d2f18
> =A0> > > > > vm_start =3D 0x4068d000, vm_end =3D 0x4068f000
> =A0> > > >
> =A0> > > > So, the pointer passed to __canonicalize_funcptr_for_compa=
re is outside
> =A0> > > > the vm range.

The strace problem is a compiler flaw.

This is the problem:
* Strace examines the applications syscall.
* Strace extracts, via PTRACE, application addresses, addresses that
don't exist in the strace address space (and should not exist).
* Strace compares extracted address to a constant SIG_ERR.
* Compiler generates a call to __c_f_f_c, which dereference the
extracted address and strace faults.

Strace and the application have completely different address spaces,
and __c_f_f_c can't assume that an address is in the current address
space.

The solution is to detect that a comparison between two pointers is a
comparison between pointer and small constant, and avoid calling
__c_f_f_c for both.

The workaround is to cast both long. I tested this and it works. I'll
submit this to debian as the fix.

Cheers,
Carlos.
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From: Mike Frysinger <vapier@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
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On Wednesday 09 September 2009 10:39:30 Carlos O'Donell wrote:
> On Sun, Jun 21, 2009 at 11:20 AM, John David
>=20
> Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> > Looking at my email archive, I see the real cause involves kernel memory
> > maps:
> >
> >  > > > On Wed, May 06, 2009 at 01:39:49PM -0400, John David Anglin wrot=
e:
> >  > > > > > The tombstone is:
> >  > > > > >
> >  > > > > > do_page_fault() pid=3D10205 command=3D'strace' type=3D15
> > address=3D0x407d2f18 > > > > > vm_start =3D 0x4068d000, vm_end =3D 0x40=
68f000
> >  > > > >
> >  > > > > So, the pointer passed to __canonicalize_funcptr_for_compare is
> > outside > > > > the vm range.
>=20
> The strace problem is a compiler flaw.
>=20
> This is the problem:
> * Strace examines the applications syscall.
> * Strace extracts, via PTRACE, application addresses, addresses that
> don't exist in the strace address space (and should not exist).
> * Strace compares extracted address to a constant SIG_ERR.
> * Compiler generates a call to __c_f_f_c, which dereference the
> extracted address and strace faults.
>=20
> Strace and the application have completely different address spaces,
> and __c_f_f_c can't assume that an address is in the current address
> space.
>=20
> The solution is to detect that a comparison between two pointers is a
> comparison between pointer and small constant, and avoid calling
> __c_f_f_c for both.
>=20
> The workaround is to cast both long. I tested this and it works. I'll
> submit this to debian as the fix.

and include this explanation in a comment right above the cast ? ;)

also, the strace list is active currently, so posting a patch there should =
get=20
it merged (and since it's an important bugfix, it should get added before t=
he=20
next release).
=2Dmike

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From - Thu Nov 08 21:04:53 2018
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X-Mozilla-Keys:                                                                                 
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
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To: carlos@systemhalted.org (Carlos O'Donell)
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> The strace problem is a compiler flaw.
> 
> This is the problem:
> * Strace examines the applications syscall.
> * Strace extracts, via PTRACE, application addresses, addresses that
> don't exist in the strace address space (and should not exist).
> * Strace compares extracted address to a constant SIG_ERR.
> * Compiler generates a call to __c_f_f_c, which dereference the
> extracted address and strace faults.
> 
> Strace and the application have completely different address spaces,
> and __c_f_f_c can't assume that an address is in the current address
> space.

Unfortunately, this is necessary to canonicalize function pointers.

> The solution is to detect that a comparison between two pointers is a
> comparison between pointer and small constant, and avoid calling
> __c_f_f_c for both.

__c_f_f_c would have to be passed both pointers to detect comparisons
with small constants, or the GCC middle-end would have to detect
comparisons with constants and avoid canonicalization in that case.

> The workaround is to cast both long. I tested this and it works. I'll
> submit this to debian as the fix.

This is simplest fix.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
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On Wed, Sep 9, 2009 at 11:16 AM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
>> The workaround is to cast both long. I tested this and it works. I'll
>> submit this to debian as the fix.
>
> This is simplest fix.

Yes, it would appear that strace/gdb (applications that ptrace
addresses from another process) are most likely applications to suffer
from this problem, and it may be easier to work around the problem
there instead of in the compiler.

Cheers,
Carlos.
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From - Thu Nov 08 21:04:53 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.file-systems,gmane.linux.ports.parisc
Subject: [PATCH 6/6] xfs: fix xfs to work with Virtually Indexed architectures
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Cc: Russell King <rmk@arm.linux.org.uk>,
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	James Bottomley <James.Bottomley@suse.de>
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xfs_buf.c includes what is essentially a hand rolled version of
blk_rq_map_kern().  In order to work properly with the vmalloc buffers
that xfs uses, this hand rolled routine must also implement the flushing
API for vmap/vmalloc areas.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 fs/xfs/linux-2.6/xfs_buf.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 965df12..62ae977 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1138,6 +1138,10 @@ xfs_buf_bio_end_io(
 	do {
 		struct page	*page = bvec->bv_page;
 
+		if (is_vmalloc_addr(bp->b_addr))
+			invalidate_kernel_dcache_addr(bp->b_addr +
+						      bvec->bv_offset);
+
 		ASSERT(!PagePrivate(page));
 		if (unlikely(bp->b_error)) {
 			if (bp->b_flags & XBF_READ)
@@ -1202,6 +1206,9 @@ _xfs_buf_ioapply(
 		bio->bi_end_io = xfs_buf_bio_end_io;
 		bio->bi_private = bp;
 
+		if (is_vmalloc_addr(bp->b_addr))
+			flush_kernel_dcache_addr(bp->b_addr);
+
 		bio_add_page(bio, bp->b_pages[0], PAGE_CACHE_SIZE, 0);
 		size = 0;
 
@@ -1228,6 +1235,9 @@ next_chunk:
 		if (nbytes > size)
 			nbytes = size;
 
+		if (is_vmalloc_addr(bp->b_addr))
+			flush_kernel_dcache_addr(bp->b_addr + PAGE_SIZE*map_i);
+
 		rbytes = bio_add_page(bio, bp->b_pages[map_i], nbytes, offset);
 		if (rbytes < nbytes)
 			break;
-- 
1.6.3.3


From - Thu Nov 08 21:04:53 2018
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Subject: [PATCH 4/6] sh: add mm API for DMA to vmalloc/vmap areas
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Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/sh/include/asm/cacheflush.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index 4c5462d..db06611 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -48,6 +48,14 @@ static inline void flush_kernel_dcache_page(struct page *page)
 {
 	flush_dcache_page(page);
 }
+static inline void flush_kernel_dcache_addr(void *addr)
+{
+	__flush_invalidate_region(addr, PAGE_SIZE);
+}
+static inline void invalidate_kernel_dcache_addr(void *addr)
+{
+	__flush_invalidate_region(addr, PAGE_SIZE);
+}
 
 #if defined(CONFIG_CPU_SH4) && !defined(CONFIG_CACHE_OFF)
 extern void copy_to_user_page(struct vm_area_struct *vma,
-- 
1.6.3.3


From - Thu Nov 08 21:04:53 2018
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Here's version two of the patch set.  It actually compiles on both x86
and parisc.  I could do with someone to test it on arm and sh.

The key test is how xfs behaves.  What I did to recreate the problem
on parisc was simply create an 8GB xfs filesystem, use cp -a to pump
about a GB of data into it from my git trees, then unmount and run
xfs_check.  Before the patches, xfs_check reports the whole fs to be
corrupt.  After the patches it reports everything to be OK.

James

---

 arch/arm/include/asm/cacheflush.h    |   10 ++++++++++
 arch/parisc/include/asm/cacheflush.h |    8 ++++++++
 arch/sh/include/asm/cacheflush.h     |    8 ++++++++
 fs/bio.c                             |   19 +++++++++++++++++--
 fs/xfs/linux-2.6/xfs_buf.c           |   10 ++++++++++
 include/linux/highmem.h              |    6 ++++++
 6 files changed, 59 insertions(+), 2 deletions(-)


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ARM cannot prevent cache movein, so this patch implements both the
flush and invalidate pieces of the API.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/arm/include/asm/cacheflush.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 1a711ea..1104ee9 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -436,6 +436,16 @@ static inline void flush_kernel_dcache_page(struct page *page)
 	if ((cache_is_vivt() || cache_is_vipt_aliasing()) && !PageHighMem(page))
 		__cpuc_flush_dcache_page(page_address(page));
 }
+static inline void flush_kernel_dcache_addr(void *addr)
+{
+	if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+		__cpuc_flush_dcache_page(addr);
+}
+static inline void invalidate_kernel_dcache_addr(void *addr)
+{
+	if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+		__cpuc_flush_dcache_page(addr);
+}
 
 #define flush_dcache_mmap_lock(mapping) \
 	spin_lock_irq(&(mapping)->tree_lock)
-- 
1.6.3.3


From - Thu Nov 08 21:04:53 2018
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Subject: [PATCH 5/6] block: permit I/O to vmalloc/vmap kernel pages
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This updates bio_map_kern() to check for pages in the vmalloc address
range and call the new kernel flushing APIs if the are.  This should
allow any kernel user to pass a vmalloc/vmap area to block.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 fs/bio.c |   19 +++++++++++++++++--
 1 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/fs/bio.c b/fs/bio.c
index 7673800..ea346b4 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1120,6 +1120,13 @@ void bio_unmap_user(struct bio *bio)
 
 static void bio_map_kern_endio(struct bio *bio, int err)
 {
+	void *kaddr = bio->bi_private;
+	if (is_vmalloc_addr(kaddr)) {
+		void *addr;
+		for (addr = kaddr; addr < kaddr + bio->bi_size;
+		     addr += PAGE_SIZE)
+			invalidate_kernel_dcache_addr(addr);
+	}
 	bio_put(bio);
 }
 
@@ -1138,9 +1145,12 @@ static struct bio *__bio_map_kern(struct request_queue *q, void *data,
 	if (!bio)
 		return ERR_PTR(-ENOMEM);
 
+	bio->bi_private = data;
+
 	offset = offset_in_page(kaddr);
 	for (i = 0; i < nr_pages; i++) {
 		unsigned int bytes = PAGE_SIZE - offset;
+		struct page *page;
 
 		if (len <= 0)
 			break;
@@ -1148,8 +1158,13 @@ static struct bio *__bio_map_kern(struct request_queue *q, void *data,
 		if (bytes > len)
 			bytes = len;
 
-		if (bio_add_pc_page(q, bio, virt_to_page(data), bytes,
-				    offset) < bytes)
+		if (is_vmalloc_addr(data)) {
+			flush_kernel_dcache_addr(data);
+			page = vmalloc_to_page(data);
+		} else
+			page = virt_to_page(data);
+
+		if (bio_add_pc_page(q, bio, page, bytes, offset) < bytes)
 			break;
 
 		data += bytes;
-- 
1.6.3.3


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Subject: [PATCH 2/6] parisc: add mm API for DMA to vmalloc/vmap areas
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Cc: Russell King <rmk@arm.linux.org.uk>,
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We already have an API to flush a kernel page along an alias
address, so use it.  The TLB purge prevents the CPU from doing
speculative moveins on the flushed address, so we don't need to
implement and invalidate.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/parisc/include/asm/cacheflush.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7243951..2536a00 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -90,6 +90,14 @@ static inline void flush_kernel_dcache_page(struct page *page)
 {
 	flush_kernel_dcache_page_addr(page_address(page));
 }
+static inline void flush_kernel_dcache_addr(void *addr)
+{
+	flush_kernel_dcache_page_addr(addr);
+}
+static inline void invalidate_kernel_dcache_addr(void *addr)
+{
+	/* nop .. the flush prevents move in until the page is touched */
+}
 
 #ifdef CONFIG_DEBUG_RODATA
 void mark_rodata_ro(void);
-- 
1.6.3.3

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From - Thu Nov 08 21:04:54 2018
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.file-systems,gmane.linux.ports.parisc
Subject: [PATCH 1/6] mm: add coherence API for DMA to vmalloc/vmap areas
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To: linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-parisc@vger.kernel.org
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On Virtually Indexed architectures (which don't do automatic alias
resolution in their caches), we have to flush via the correct
virtual address to prepare pages for DMA.  On some architectures
(like arm) we cannot prevent the CPU from doing data movein along
the alias (and thus giving stale read data), so we not only have to
introduce a flush API to push dirty cache lines out, but also an invalidate
API to kill inconsistent cache lines that may have moved in before
DMA changed the data

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 include/linux/highmem.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 211ff44..eb99c70 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -17,6 +17,12 @@ static inline void flush_anon_page(struct vm_area_struct *vma, struct page *page
 static inline void flush_kernel_dcache_page(struct page *page)
 {
 }
+static inline void flush_kernel_dcache_addr(void *vaddr)
+{
+}
+static inline void invalidate_kernel_dcache_addr(void *vaddr)
+{
+}
 #endif
 
 #include <asm/kmap_types.h>
-- 
1.6.3.3


From - Thu Nov 08 21:04:54 2018
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Subject: Re: [PATCH 6/6] xfs: fix xfs to work with Virtually Indexed
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Cc: linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org,
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On Wed, Sep 09, 2009 at 10:52:16AM -0500, James Bottomley wrote:
> xfs_buf.c includes what is essentially a hand rolled version of
> blk_rq_map_kern().  In order to work properly with the vmalloc buffers
> that xfs uses, this hand rolled routine must also implement the flushing
> API for vmap/vmalloc areas.

It's not really a handcrafted version of blk_rq_map_kern because it
can add discontinuous into a single bio.

The patches look fine to (not pretty but fine :)), and I'll make sure
they get added once those two helpers made it, probably augmented by
a comment explaining what's going on here.

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Content-Type: text/plain; charset=ISO-8859-1

Architectures using function pointers, like hppa, may need to
manipulate the function pointer to compute the result of a comparison.
However, the SA_HANDLER function pointer exists only in the address
space of the traced process, and can't be manipulated by strace. In
order to prevent the compiler from generating code to manipulate
SA_HANDLER we cast the function pointers to long.

Please apply.

Cheers,
Carlos.
~~~
Fix function pointer comparison for hppa.

* signal.c (sys_sigaction): Cast function pointers to long.
(sys_rt_sigaction): Cast function pointers to long.

--00032555a196a54927047329090b
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On Wed, Sep 09, 2009 at 09:34:38AM -0500, James Bottomley wrote:
> On Wed, 2009-09-09 at 12:35 +0900, Paul Mundt wrote:
> > And here I thought it was a new gcc construct along the lines of
> > inline-if-so-inclined.. :-)
> 
> Actually, I missed the fact that sh also sets
> ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE, so you'll need implementations of
> these functions too.  Does this look right?
> 
Yes, I was planning on just wiring it up later, but this looks correct.

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On Wed, Sep 09, 2009 at 10:52:14AM -0500, James Bottomley wrote:
> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> ---
>  arch/sh/include/asm/cacheflush.h |    8 ++++++++
>  1 files changed, 8 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
> index 4c5462d..db06611 100644
> --- a/arch/sh/include/asm/cacheflush.h
> +++ b/arch/sh/include/asm/cacheflush.h
> @@ -48,6 +48,14 @@ static inline void flush_kernel_dcache_page(struct page *page)
>  {
>  	flush_dcache_page(page);
>  }
> +static inline void flush_kernel_dcache_addr(void *addr)
> +{
> +	__flush_invalidate_region(addr, PAGE_SIZE);
> +}
> +static inline void invalidate_kernel_dcache_addr(void *addr)
> +{
> +	__flush_invalidate_region(addr, PAGE_SIZE);
> +}
>  
Actually, I spoke too soon. The first one should be either a
__flush_purge_region() or __flush_wback_region() I suspect. The former
does both a writeback and invalidate, while the latter only does the
writeback.
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On Thu, 2009-09-10 at 09:24 +0900, Paul Mundt wrote:
> On Wed, Sep 09, 2009 at 09:34:38AM -0500, James Bottomley wrote:
> > On Wed, 2009-09-09 at 12:35 +0900, Paul Mundt wrote:
> > > And here I thought it was a new gcc construct along the lines of
> > > inline-if-so-inclined.. :-)
> > 
> > Actually, I missed the fact that sh also sets
> > ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE, so you'll need implementations of
> > these functions too.  Does this look right?
> > 
> Yes, I was planning on just wiring it up later, but this looks correct.

Great, thanks!

Give me an ack and I'll take care of submitting it ... although it would
be nice to test it out with the xfs problem case.

James


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On Thu, 2009-09-10 at 09:27 +0900, Paul Mundt wrote:
> On Wed, Sep 09, 2009 at 10:52:14AM -0500, James Bottomley wrote:
> > Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> > ---
> >  arch/sh/include/asm/cacheflush.h |    8 ++++++++
> >  1 files changed, 8 insertions(+), 0 deletions(-)
> > 
> > diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
> > index 4c5462d..db06611 100644
> > --- a/arch/sh/include/asm/cacheflush.h
> > +++ b/arch/sh/include/asm/cacheflush.h
> > @@ -48,6 +48,14 @@ static inline void flush_kernel_dcache_page(struct page *page)
> >  {
> >  	flush_dcache_page(page);
> >  }
> > +static inline void flush_kernel_dcache_addr(void *addr)
> > +{
> > +	__flush_invalidate_region(addr, PAGE_SIZE);
> > +}
> > +static inline void invalidate_kernel_dcache_addr(void *addr)
> > +{
> > +	__flush_invalidate_region(addr, PAGE_SIZE);
> > +}
> >  
> Actually, I spoke too soon. The first one should be either a
> __flush_purge_region() or __flush_wback_region() I suspect. The former
> does both a writeback and invalidate, while the latter only does the
> writeback.

OK, will update.  I used the _flush_invalidate on the grounds that it
must completely kill the cacheline, so it was the safest semantic ...
actually, it's the only parisc semantic, so it's pretty much what occurs
to me most of the time.

James



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> On Wed, Sep 9, 2009 at 11:16 AM, John David
> Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> >> The workaround is to cast both long. I tested this and it works. I'll
> >> submit this to debian as the fix.
> >
> > This is simplest fix.
> 
> Yes, it would appear that strace/gdb (applications that ptrace
> addresses from another process) are most likely applications to suffer
> from this problem, and it may be easier to work around the problem
> there instead of in the compiler.

Actually, it probably would not be too hard to disable canonicalization
with a compiler option.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Wed, Sep 09, 2009 at 10:52:10AM -0500, James Bottomley wrote:
> Here's version two of the patch set.  It actually compiles on both x86
> and parisc.  I could do with someone to test it on arm and sh.
> 
> The key test is how xfs behaves.  What I did to recreate the problem
> on parisc was simply create an 8GB xfs filesystem, use cp -a to pump
> about a GB of data into it from my git trees, then unmount and run
> xfs_check.  Before the patches, xfs_check reports the whole fs to be
> corrupt.  After the patches it reports everything to be OK.
> 
> James
> 

I'm seeing some corruption with these patches on SH and a 4GB XFS
filesystem. However, I am currently seeing other cache aliasing issues
on this board anyway. I'll do some more analysis tonight, unless Paul
can prove it's just my setup being weird again.
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On Wed, Sep 9, 2009 at 9:10 PM, John David
Anglin<dave@hiauly1.hia.nrc.ca> wrote:
>> On Wed, Sep 9, 2009 at 11:16 AM, John David
>> Anglin<dave@hiauly1.hia.nrc.ca> wrote:
>> >> The workaround is to cast both long. I tested this and it works. I'll
>> >> submit this to debian as the fix.
>> >
>> > This is simplest fix.
>>
>> Yes, it would appear that strace/gdb (applications that ptrace
>> addresses from another process) are most likely applications to suffer
>> from this problem, and it may be easier to work around the problem
>> there instead of in the compiler.
>
> Actually, it probably would not be too hard to disable canonicalization
> with a compiler option.

No, it's not neccessary. This way I simply have to audit the incorrect
comparisons of a inferior's function pointer to a constant. If I were
to disable canonicalization I'd have to audit the entire compilation
unit to prove I haven't broken any valid function pointer comparisons.

Cheers,
Carlos.
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Cc: Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
	ralf@linux-mips.org, linux-mips@linux-mips.org,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	linux390@de.ibm.com, linux-s390@vger.kernel.org,
	David Howells <dhowells@redhat.com>,
	Koichi Yasutake <yasutake.koichi@jp.panasonic.com>,
	linux-am33-list@redhat.com, Kyle McMartin <kyle@mcmartin.ca>,
	Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>, linuxppc-dev@ozlabs.org,
	Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	linux-alpha@vger.kernel.org,
	Haavard Skinnemoen <hskinnemoen@atmel.com>,
	Mike Frysinger <vapier@gentoo.org>,
	uclinux-dist-devel@blackfin.uclinux.org
To: Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2153>

Starting with version 4.5, GCC has a new built-in function called
__builtin_unreachable().  The function tells the compiler that control
flow will never reach that point.  Currently we trick the compiler by
putting in for(;;); but this has the disadvantage that extra code is
emitted for an endless loop.  For an i386 kernel using
__builtin_unreachable() results in an allyesconfig that is nearly 4000
bytes smaller.

This patch set adds support to compiler.h creating a
new macro usable in the kernel called unreachable().  If the compiler
lacks __builtin_unreachable(), it just expands to for(;;).

The x86 and MIPS patches I actually tested with a GCC-4.5 snapshot.
Lacking the ability to test the rest of the architectures, I just did
what seemed right without even trying to compile the kernel.

01/10 adds the compiler.h support, the rest of the patches retrofit
the various architecture BUG macros to use it instead of for(;;) or
while(1) loops.

I will reply with the 10 patches.

The architecture specific patches I will send to a smaller set of
people.

David Daney (10):
   Add support for GCC-4.5's __builtin_unreachable() to compiler.h
   x86: Convert BUG() to use unreachable()
   MIPS: Convert BUG() to use unreachable()
   s390: Convert BUG() to use unreachable()
   mn10300: Convert BUG() to use unreachable()
   parisc: Convert BUG() to use unreachable()
   powerpc: Convert BUG() to use unreachable()
   alpha: Convert BUG() to use unreachable()
   avr32: Convert BUG() to use unreachable()
   blackfin: Convert BUG() to use unreachable()

  arch/alpha/include/asm/bug.h    |    2 +-
  arch/avr32/include/asm/bug.h    |    2 +-
  arch/blackfin/include/asm/bug.h |    2 +-
  arch/mips/include/asm/bug.h     |    4 +---
  arch/mn10300/include/asm/bug.h  |    3 ++-
  arch/parisc/include/asm/bug.h   |    4 ++--
  arch/powerpc/include/asm/bug.h  |    2 +-
  arch/s390/include/asm/bug.h     |    2 +-
  arch/x86/include/asm/bug.h      |    4 ++--
  include/linux/compiler-gcc4.h   |   14 ++++++++++++++
  include/linux/compiler.h        |    5 +++++
  11 files changed, 31 insertions(+), 13 deletions(-)

--
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From - Thu Nov 08 21:04:55 2018
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X-Mozilla-Keys:                                                                                 
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From: David Daney <ddaney@caviumnetworks.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.alpha,gmane.linux.hardware.blackfin.kernel.devel
Subject: [PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable() to compiler.h
Date: Thu, 10 Sep 2009 16:56:42 -0700
Lines: 84
Approved: news@gmane.org
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Cc: linux-kernel@vger.kernel.org,
	David Daney <ddaney@caviumnetworks.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
	ralf@linux-mips.org, linux-mips@linux-mips.org,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	linux390@de.ibm.com, linux-s390@vger.kernel.org,
	David Howells <dhowells@redhat.com>,
	Koichi Yasutake <yasutake.koichi@jp.panasonic.com>,
	linux-am33-list@redhat.com, Kyle McMartin <kyle@mcmartin.ca>,
	Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>, linuxppc-dev@ozlabs.org,
	Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	linux-alpha@vger.kernel.org,
	Haavard Skinnemoen <hskinnemoen@atmel.com>,
	Mike Frysinger <vapier@g
To: torvalds@linux-foundation.org, akpm@linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2154>

Starting with version 4.5, GCC has a new built-in function
__builtin_unreachable() that can be used in places like the kernel's
BUG() where inline assembly is used to transfer control flow.  This
eliminated the need for an endless loop in these places.

The patch adds a new macro 'unreachable()' that will expand to either
__builtin_unreachable() or an endless loop depending on the compiler
version.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Ingo Molnar <mingo@redhat.com>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: x86@kernel.org
CC: ralf@linux-mips.org
CC: linux-mips@linux-mips.org
CC: Martin Schwidefsky <schwidefsky@de.ibm.com>
CC: Heiko Carstens <heiko.carstens@de.ibm.com>
CC: linux390@de.ibm.com
CC: linux-s390@vger.kernel.org
CC: David Howells <dhowells@redhat.com>
CC: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
CC: linux-am33-list@redhat.com
CC: Kyle McMartin <kyle@mcmartin.ca>
CC: Helge Deller <deller@gmx.de>
CC: linux-parisc@vger.kernel.org
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Paul Mackerras <paulus@samba.org>
CC: linuxppc-dev@ozlabs.org
CC: Richard Henderson <rth@twiddle.net>
CC: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
CC: linux-alpha@vger.kernel.org
CC: Haavard Skinnemoen <hskinnemoen@atmel.com>
CC: Mike Frysinger <vapier@gentoo.org>
CC: uclinux-dist-devel@blackfin.uclinux.org
---
 include/linux/compiler-gcc4.h |   14 ++++++++++++++
 include/linux/compiler.h      |    5 +++++
 2 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index 450fa59..ab3af40 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -36,4 +36,18 @@
    the kernel context */
 #define __cold			__attribute__((__cold__))
 
+
+#if __GNUC_MINOR__ >= 5
+/*
+ * Mark a position in code as unreachable.  This can be used to
+ * suppress control flow warnings after asm blocks that transfer
+ * control elsewhere.
+ *
+ * Early snapshots of gcc 4.5 don't support this and we can't detect
+ * this in the preprocessor, but we can live with this because they're
+ * unreleased.  Really, we need to have autoconf for the kernel.
+ */
+#define unreachable() __builtin_unreachable()
+#endif
+
 #endif
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 04fb513..7efd73f 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -144,6 +144,11 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 # define barrier() __memory_barrier()
 #endif
 
+/* Unreachable code */
+#ifndef unreachable
+# define unreachable() do { for (;;) ; } while (0)
+#endif
+
 #ifndef RELOC_HIDE
 # define RELOC_HIDE(ptr, off)					\
   ({ unsigned long __ptr;					\
-- 
1.6.2.5




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From: David Daney <ddaney@caviumnetworks.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 06/10] parisc: Convert BUG() to use unreachable()
Date: Thu, 10 Sep 2009 16:56:47 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2155>

Use the new unreachable() macro instead of for(;;);

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
CC: Kyle McMartin <kyle@mcmartin.ca>
CC: Helge Deller <deller@gmx.de>
CC: linux-parisc@vger.kernel.org
---
 arch/parisc/include/asm/bug.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
index 8cfc553..75e46c5 100644
--- a/arch/parisc/include/asm/bug.h
+++ b/arch/parisc/include/asm/bug.h
@@ -32,14 +32,14 @@
 			     "\t.popsection"				\
 			     : : "i" (__FILE__), "i" (__LINE__),	\
 			     "i" (0), "i" (sizeof(struct bug_entry)) ); \
-		for(;;) ;						\
+		unreachable();						\
 	} while(0)
 
 #else
 #define BUG()								\
 	do {								\
 		asm volatile(PARISC_BUG_BREAK_ASM : : );		\
-		for(;;) ;						\
+		unreachable();						\
 	} while(0)
 #endif
 
-- 
1.6.2.5


From - Thu Nov 08 21:04:55 2018
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From: Richard Henderson <rth@twiddle.net>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.alpha,gmane.linux.hardware.blackfin.kernel.devel
Subject: Re: [PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable()
 to compiler.h
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Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org,
	linux-kernel@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
	ralf@linux-mips.org, linux-mips@linux-mips.org,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	linux390@de.ibm.com, linux-s390@vger.kernel.org,
	David Howells <dhowells@redhat.com>,
	Koichi Yasutake <yasutake.koichi@jp.panasonic.com>,
	linux-am33-list@redhat.com, Kyle McMartin <kyle@mcmartin.ca>,
	Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>, linuxppc-dev@ozlabs.org,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	linux-alpha@vger.kernel.org,
	Haavard Skinnemoen <hskinnemoen@atmel.com>,
	Mike Frysinger <vapier@gentoo.org>,
	uclinux-d
To: David Daney <ddaney@caviumnetworks.com>
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On 09/10/2009 04:56 PM, David Daney wrote:
> +#ifndef unreachable
> +# define unreachable() do { for (;;) ; } while (0)
> +#endif

#define unreachable() do { } while (1)


r~



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Subject: Re: [PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable()
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On Friday 11 September 2009 01:56:42 David Daney wrote:
> +/* Unreachable code */
> +#ifndef unreachable
> +# define unreachable() do { for (;;) ; } while (0)
> +#endif

# define unreachable() do { } while (1)

? :)

-- 
Greetings, Michael.

From - Thu Nov 08 21:04:55 2018
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Subject: Re: [PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable()
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To: Michael Buesch <mb@bu3sch.de>
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Michael Buesch wrote:
> On Friday 11 September 2009 01:56:42 David Daney wrote:
>> +/* Unreachable code */
>> +#ifndef unreachable
>> +# define unreachable() do { for (;;) ; } while (0)
>> +#endif
> 
> # define unreachable() do { } while (1)
> 
> ? :)

Clearly I was not thinking clearly when I wrote that part.  RTH noted 
the same thing.  I will fix it.

Thanks,
David Daney
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From - Thu Nov 08 21:04:55 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch,gmane.linux.file-systems
Subject: Re: [PATCH 0/6] fix xfs by making I/O to vmap/vmalloc areas work
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On Thu, 2009-09-10 at 07:14 +0100, Matt Fleming wrote:
> On Wed, Sep 09, 2009 at 10:52:10AM -0500, James Bottomley wrote:
> > Here's version two of the patch set.  It actually compiles on both x86
> > and parisc.  I could do with someone to test it on arm and sh.
> > 
> > The key test is how xfs behaves.  What I did to recreate the problem
> > on parisc was simply create an 8GB xfs filesystem, use cp -a to pump
> > about a GB of data into it from my git trees, then unmount and run
> > xfs_check.  Before the patches, xfs_check reports the whole fs to be
> > corrupt.  After the patches it reports everything to be OK.
> > 
> > James
> > 
> 
> I'm seeing some corruption with these patches on SH and a 4GB XFS
> filesystem. However, I am currently seeing other cache aliasing issues
> on this board anyway. I'll do some more analysis tonight, unless Paul
> can prove it's just my setup being weird again.

Did some debug checking, and it turns out that the invalidation logic is
bogus (the bio parameters get updated before the request completes).  Of
course, we wouldn't see this on parisc because we don't require
invalidation ....

I'll try to fix and then repost.

Thanks for testing.

James


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From - Thu Nov 08 21:04:55 2018
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On Wed, 2009-09-09 at 10:52 -0500, James Bottomley wrote:
> xfs_buf.c includes what is essentially a hand rolled version of
> blk_rq_map_kern().  In order to work properly with the vmalloc buffers
> that xfs uses, this hand rolled routine must also implement the flushing
> API for vmap/vmalloc areas.
> 
> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> ---
>  fs/xfs/linux-2.6/xfs_buf.c |   10 ++++++++++
>  1 files changed, 10 insertions(+), 0 deletions(-)
> 
> diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
> index 965df12..62ae977 100644
> --- a/fs/xfs/linux-2.6/xfs_buf.c
> +++ b/fs/xfs/linux-2.6/xfs_buf.c
> @@ -1138,6 +1138,10 @@ xfs_buf_bio_end_io(
>  	do {
>  		struct page	*page = bvec->bv_page;
>  
> +		if (is_vmalloc_addr(bp->b_addr))
> +			invalidate_kernel_dcache_addr(bp->b_addr +
> +						      bvec->bv_offset);

OK, so this invalidation logic is completely wrong.  For large vmalloc
buffers, xfs will split them up over several bios.  The only way I can
think to fix this is below ... comments?

If everyone is OK, I'll reroll the patches with this built in.

James

---

diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 62ae977..320a6e4 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1132,15 +1132,25 @@ xfs_buf_bio_end_io(
 	xfs_buf_t		*bp = (xfs_buf_t *)bio->bi_private;
 	unsigned int		blocksize = bp->b_target->bt_bsize;
 	struct bio_vec		*bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
+	void			*vaddr = NULL;
+	int			i;
 
 	xfs_buf_ioerror(bp, -error);
 
+	if (is_vmalloc_addr(bp->b_addr))
+		for (i = 0; i < bp->b_page_count; i++)
+			if (bvec->bv_page == bp->b_pages[i]) {
+				vaddr = bp->b_addr + i*PAGE_SIZE;
+				break;
+			}
+
 	do {
 		struct page	*page = bvec->bv_page;
 
-		if (is_vmalloc_addr(bp->b_addr))
-			invalidate_kernel_dcache_addr(bp->b_addr +
-						      bvec->bv_offset);
+		if (is_vmalloc_addr(bp->b_addr)) {
+			invalidate_kernel_dcache_addr(vaddr);
+			vaddr -= PAGE_SIZE;
+		}
 
 		ASSERT(!PagePrivate(page));
 		if (unlikely(bp->b_error)) {


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
Date: Fri, 11 Sep 2009 18:57:31 -0400 (EDT)
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To: carlos@systemhalted.org (Carlos O'Donell)
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> No, it's not neccessary. This way I simply have to audit the incorrect
> comparisons of a inferior's function pointer to a constant. If I were
> to disable canonicalization I'd have to audit the entire compilation
> unit to prove I haven't broken any valid function pointer comparisons.

I'm thinking we have OPD support with recent binutils, so the
above shouldn't be necessary.  Wasn't that something you added?

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable() 
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Cc: Michael Buesch <mb@bu3sch.de>, linuxppc-dev@lists.ozlabs.org,
	torvalds@linux-foundation.org, akpm@linux-foundation.org,
	linux-mips@linux-mips.org,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	linuxppc-dev@ozlabs.org, Paul Mackerras <paulus@samba.org>,
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	linux-am33-list@redhat.com, Helge Deller <deller@gmx.de>,
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	Koichi Y
To: David Daney <ddaney@caviumnetworks.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2162>

On Fri, Sep 11, 2009 at 17:58, David Daney<ddaney@caviumnetworks.com> w=
rote:
> Michael Buesch wrote:
>>
>> On Friday 11 September 2009 01:56:42 David Daney wrote:
>>>
>>> +/* Unreachable code */
>>> +#ifndef unreachable
>>> +# define unreachable() do { for (;;) ; } while (0)
>>> +#endif
>>
>> # define unreachable() do { } while (1)
>>
>> ? :)
>
> Clearly I was not thinking clearly when I wrote that part. =C2=A0RTH =
noted the
> same thing. =C2=A0I will fix it.

However, people are so used to seeing the `do { } while (0)' idiom,
that they might miss
there's a `1' here, not a `0'.

So perhaps it's better to use plain `for (;;)' for infinite loops?

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
							    -- Linus Torvalds
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
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On Fri, Sep 11, 2009 at 6:57 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> No, it's not neccessary. This way I simply have to audit the incorre=
ct
>> comparisons of a inferior's function pointer to a constant. If I wer=
e
>> to disable canonicalization I'd have to audit the entire compilation
>> unit to prove I haven't broken any valid function pointer comparison=
s.
>
> I'm thinking we have OPD support with recent binutils, so the
> above shouldn't be necessary. =A0Wasn't that something you added?

I did the work, yes, I rewrote the PLABEL support to include adding
OPD's in the executable (instead of pointing the local PLABEL relocs
at the relevant PLT entry). However, with the start of my Masters I
didn't have time to clean it up, and check it into binutils. This is
*certainly* on my list, we need some work in binutils, but *right now*
I'm working on resurrecting strace which seems to be completely
broken. Fixing the function descriptor problem is only the first step,
after that strace still fails with an invalid upeek generated from
hppa-specific code. I'm working on it right now (today actually).

AFAICT "strace" *is* our "defense against the dark arts" if you catch
my harry potter reference :-)

Cheers,
Carlos.
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
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On Sun, Sep 13, 2009 at 04:56:20PM -0400, Carlos O'Donell wrote:
> after that strace still fails with an invalid upeek generated from
> hppa-specific code. I'm working on it right now (today actually).
> 
> AFAICT "strace" *is* our "defense against the dark arts" if you catch
> my harry potter reference :-)
> 

http://shortfin.cabal.ca/~kyle/strace-fix-hppa-syscalls.diff
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
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On Sun, Sep 13, 2009 at 5:00 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Sun, Sep 13, 2009 at 04:56:20PM -0400, Carlos O'Donell wrote:
>> after that strace still fails with an invalid upeek generated from
>> hppa-specific code. I'm working on it right now (today actually).
>>
>> AFAICT "strace" *is* our "defense against the dark arts" if you catch
>> my harry potter reference :-)
>>
>
> http://shortfin.cabal.ca/~kyle/strace-fix-hppa-syscalls.diff

Thanks, that solves my problem.

Is it OK if I submit your patch to debian and upstream *again* and
keep doing so until they apply the patches? >:)

I see this ancient bug entry, which I'll update, and bug Roland...

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=437928

Cheers,
Carlos.
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From - Thu Nov 08 21:04:56 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: Segfault in __c_f_f_c during strace of nptl application.
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On Sun, Sep 13, 2009 at 05:32:41PM -0400, Carlos O'Donell wrote:
> On Sun, Sep 13, 2009 at 5:00 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> > On Sun, Sep 13, 2009 at 04:56:20PM -0400, Carlos O'Donell wrote:
> >> after that strace still fails with an invalid upeek generated from
> >> hppa-specific code. I'm working on it right now (today actually).
> >>
> >> AFAICT "strace" *is* our "defense against the dark arts" if you catch
> >> my harry potter reference :-)
> >>
> >
> > http://shortfin.cabal.ca/~kyle/strace-fix-hppa-syscalls.diff
> 
> Thanks, that solves my problem.
> 
> Is it OK if I submit your patch to debian and upstream *again* and
> keep doing so until they apply the patches? >:)

gopher it.
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From - Thu Nov 08 21:04:56 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.next,gmane.linux.kernel
Subject: Re: linux-next: manual merge of the security-testing tree with the
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Hi Kyle,

On Thu, 3 Sep 2009 15:46:36 +1000 Stephen Rothwell <sfr@canb.auug.org.au> w=
rote:
>
> Today's linux-next merge of the security-testing tree got conflicts in
> arch/parisc/include/asm/thread_info.h, arch/parisc/kernel/entry.S and
> arch/parisc/kernel/signal.c between commit 9f4259771faf1ffd99888796d925ad=
ae4c93630b ("parisc: add TIF_NOTIFY_RESUME and use tracehook_notify_resume"=
) from the parisc tree and
> commits d0420c83f39f79afb82010c2d2cafd150eef651b ("KEYS: Extend
> TIF_NOTIFY_RESUME to (almost) all architectures [try #6]") and
> ee18d64c1f632043a02e6f5ba5e045bb26a5465f ("KEYS: Add a keyctl to install
> a process's session keyring on its parent [try #6]") from the
> security-testing tree.
>=20
> Overlapping changes.  I fixed it up (using the parisc versions and adding
> the extra change from the latter security-testing patch) and can carry
> the fixes as necessary.

This conflict is now between the parisc tree and Linus' tree ...

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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From - Thu Nov 08 21:04:56 2018
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Subject: Re: linux-next: manual merge of the security-testing tree with the
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On Mon, Sep 14, 2009 at 03:35:32PM +1000, Stephen Rothwell wrote:
> Hi Kyle,
> > Overlapping changes.  I fixed it up (using the parisc versions and adding
> > the extra change from the latter security-testing patch) and can carry
> > the fixes as necessary.
> 
> This conflict is now between the parisc tree and Linus' tree ...
> 

You don't say.

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	Heiko Carstens <heiko.carstens@de.ibm.com>,
	linuxppc-dev@ozlabs.org, Paul Mackerras <paulus@samba.org>,
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	Koichi Y
To: Geert Uytterhoeven <geert@linux-m68k.org>
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Geert Uytterhoeven wrote:
> On Fri, Sep 11, 2009 at 17:58, David Daney<ddaney@caviumnetworks.com> wrote:
>> Michael Buesch wrote:
>>> On Friday 11 September 2009 01:56:42 David Daney wrote:
>>>> +/* Unreachable code */
>>>> +#ifndef unreachable
>>>> +# define unreachable() do { for (;;) ; } while (0)
>>>> +#endif
>>> # define unreachable() do { } while (1)
>>>
>>> ? :)
>> Clearly I was not thinking clearly when I wrote that part.  RTH noted the
>> same thing.  I will fix it.
> 
> However, people are so used to seeing the `do { } while (0)' idiom,
> that they might miss
> there's a `1' here, not a `0'.
> 
> So perhaps it's better to use plain `for (;;)' for infinite loops?
> 

I don't think so.  The only valid token that can follow 'do { } while 
(1)' is ';', any statement may follow 'for (;;)', so there is a greater 
possibility to silently screw things up with the for(;;) form.

David Daney

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From - Thu Nov 08 21:04:56 2018
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From: David Daney <ddaney@caviumnetworks.com>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.kernel,gmane.linux.kernel.cross-arch
Subject: [PATCH 00/11] Add support for GCC's __builtin_unreachable() and use
 it in BUG (v2).
Date: Mon, 14 Sep 2009 14:50:58 -0700
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Cc: Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
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	Linux Kernel Maili
To: Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>
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When I sent the first version, I had not realized that Roland McGrath
had only a day or two earlier submitted a very similar patch (although
one that only fixed up the x86 case).

I have been working on this quite a while now, starting with adding
the required support to GCC, so with an eye towards finishing it up I
have this new version.

 From the announcement of the first version:

Starting with version 4.5, GCC has a new built-in function called
__builtin_unreachable().  The function tells the compiler that control
flow will never reach that point.  Currently we trick the compiler by
putting in for(;;); but this has the disadvantage that extra code is
emitted for an endless loop.  For an i386 kernel using
__builtin_unreachable() results in an defaultconfig that is nearly 4000
bytes smaller.

This patch set adds support to compiler.h creating a
new macro usable in the kernel called unreachable().  If the compiler
lacks __builtin_unreachable(), it just expands to for(;;).

The x86 and MIPS patches I actually tested with a GCC-4.5 snapshot.
Lacking the ability to test the rest of the architectures, I just did
what seemed right without even trying to compile the kernel.

For version 2:

I fixed a couple of checkpatch issues, and simplified the
unreachable() macro for the pre-GCC-4.5 case (as suggested by Richard
Henderson).  Also several Acked-by: were added.

New in this version (as suggested by Ingo Molnar) I added 11/11 which
uses unreachable() in asm-generic/bug.h for !CONFIG_BUG case.  This
one may be a little controversial as it will end up making code
slightly larger when !CONFIG_BUG and you are using a pre-GCC-4.5
compiler.

I will reply with the 11 patches.

David Daney (11):
   Add support for GCC-4.5's __builtin_unreachable() to compiler.h (v2)
   x86: Convert BUG() to use unreachable()
   MIPS: Convert BUG() to use unreachable()
   s390: Convert BUG() to use unreachable()
   mn10300: Convert BUG() to use unreachable()
   parisc: Convert BUG() to use unreachable()
   powerpc: Convert BUG() to use unreachable()
   alpha: Convert BUG() to use unreachable()
   avr32: Convert BUG() to use unreachable()
   blackfin: Convert BUG() to use unreachable()
   Use unreachable() in asm-generic/bug.h for !CONFIG_BUG case.

  arch/alpha/include/asm/bug.h    |    3 ++-
  arch/avr32/include/asm/bug.h    |    2 +-
  arch/blackfin/include/asm/bug.h |    2 +-
  arch/mips/include/asm/bug.h     |    4 +---
  arch/mn10300/include/asm/bug.h  |    3 ++-
  arch/parisc/include/asm/bug.h   |    4 ++--
  arch/powerpc/include/asm/bug.h  |    2 +-
  arch/s390/include/asm/bug.h     |    2 +-
  arch/x86/include/asm/bug.h      |    4 ++--
  include/asm-generic/bug.h       |    4 ++--
  include/linux/compiler-gcc4.h   |   14 ++++++++++++++
  include/linux/compiler.h        |    5 +++++
  12 files changed, 34 insertions(+), 15 deletions(-)

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From: David Daney <ddaney@caviumnetworks.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 06/11] parisc: Convert BUG() to use unreachable()
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Use the new unreachable() macro instead of for(;;);

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
CC: Kyle McMartin <kyle@mcmartin.ca>
CC: Helge Deller <deller@gmx.de>
CC: linux-parisc@vger.kernel.org
---
 arch/parisc/include/asm/bug.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
index 8cfc553..75e46c5 100644
--- a/arch/parisc/include/asm/bug.h
+++ b/arch/parisc/include/asm/bug.h
@@ -32,14 +32,14 @@
 			     "\t.popsection"				\
 			     : : "i" (__FILE__), "i" (__LINE__),	\
 			     "i" (0), "i" (sizeof(struct bug_entry)) ); \
-		for(;;) ;						\
+		unreachable();						\
 	} while(0)
 
 #else
 #define BUG()								\
 	do {								\
 		asm volatile(PARISC_BUG_BREAK_ASM : : );		\
-		for(;;) ;						\
+		unreachable();						\
 	} while(0)
 #endif
 
-- 
1.6.2.5


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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Currently the debian strace on hppa is completely broken.
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=546619

As a workaround I'm making available a working debian strace package here:
http://www.parisc-linux.org/~carlos/strace_4.5.18-1_hppa.deb
md5sum: cdcb1c423792fb11a73fd36c26e559a7

Feel free to use this strace package if you need a working strace.

Cheers,
Carlos.
debian-hppa porter.
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From - Thu Nov 08 21:04:56 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Working debian package for strace 4.5.18-1
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Thu, Sep 17, 2009 at 11:51:22AM -0400, Carlos O'Donell wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Currently the debian strace on hppa is completely broken.
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=546619
> 
> As a workaround I'm making available a working debian strace package here:
> http://www.parisc-linux.org/~carlos/strace_4.5.18-1_hppa.deb
> md5sum: cdcb1c423792fb11a73fd36c26e559a7
> 
> Feel free to use this strace package if you need a working strace.
> 

Thanks for fixing this, Carlos.

> Cheers,
> Carlos.
> debian-hppa porter.

regards, Kyle
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From - Thu Nov 08 21:04:56 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch,gmane.linux.file-systems
Subject: [PATCH 0/6] fix xfs by making I/O to vmap/vmalloc areas work
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Cc: Russell King <rmk@arm.linux.org.uk>,
	Christoph Hellwig <hch@lst.de>,
	Paul Mundt <lethal@linux-sh.org>,
	James Bottomley <James.Bottomley@HansenPartnership.com>
To: linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-parisc@vger.kernel.org
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From: James Bottomley <James.Bottomley@HansenPartnership.com>

Here's version three of the patch.  This one makes sure the invalidate
works correctly.  I verified it on parisc by making my system print out
the virtual addresses it was invalidating and matching up with the ones
that were initially flushed, but since invalidate is a nop on parisc, I
can't verify live that the issue is fixed.  I'd really appreciate someone
from arm and sh testing here.

Thanks,

James

---

James Bottomley (6):
  mm: add coherence API for DMA to vmalloc/vmap areas
  parisc: add mm API for DMA to vmalloc/vmap areas
  arm: add mm API for DMA to vmalloc/vmap areas
  sh: add mm API for DMA to vmalloc/vmap areas
  block: permit I/O to vmalloc/vmap kernel pages
  xfs: fix xfs to work with Virtually Indexed architectures

 arch/arm/include/asm/cacheflush.h    |   10 ++++++++++
 arch/parisc/include/asm/cacheflush.h |    8 ++++++++
 arch/sh/include/asm/cacheflush.h     |    8 ++++++++
 fs/bio.c                             |   20 ++++++++++++++++++--
 fs/xfs/linux-2.6/xfs_buf.c           |   20 ++++++++++++++++++++
 include/linux/highmem.h              |    6 ++++++
 6 files changed, 70 insertions(+), 2 deletions(-)

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From: James Bottomley <jejb@external.hp.com>

On Virtually Indexed architectures (which don't do automatic alias
resolution in their caches), we have to flush via the correct
virtual address to prepare pages for DMA.  On some architectures
(like arm) we cannot prevent the CPU from doing data movein along
the alias (and thus giving stale read data), so we not only have to
introduce a flush API to push dirty cache lines out, but also an invalidate
API to kill inconsistent cache lines that may have moved in before
DMA changed the data

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 include/linux/highmem.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 211ff44..eb99c70 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -17,6 +17,12 @@ static inline void flush_anon_page(struct vm_area_struct *vma, struct page *page
 static inline void flush_kernel_dcache_page(struct page *page)
 {
 }
+static inline void flush_kernel_dcache_addr(void *vaddr)
+{
+}
+static inline void invalidate_kernel_dcache_addr(void *vaddr)
+{
+}
 #endif
 
 #include <asm/kmap_types.h>
-- 
1.6.3.3

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Subject: [PATCH 2/6] parisc: add mm API for DMA to vmalloc/vmap areas
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	James Bottomley <jejb@external.hp.com>,
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From: James Bottomley <jejb@external.hp.com>

We already have an API to flush a kernel page along an alias
address, so use it.  The TLB purge prevents the CPU from doing
speculative moveins on the flushed address, so we don't need to
implement and invalidate.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/parisc/include/asm/cacheflush.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7243951..2536a00 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -90,6 +90,14 @@ static inline void flush_kernel_dcache_page(struct page *page)
 {
 	flush_kernel_dcache_page_addr(page_address(page));
 }
+static inline void flush_kernel_dcache_addr(void *addr)
+{
+	flush_kernel_dcache_page_addr(addr);
+}
+static inline void invalidate_kernel_dcache_addr(void *addr)
+{
+	/* nop .. the flush prevents move in until the page is touched */
+}
 
 #ifdef CONFIG_DEBUG_RODATA
 void mark_rodata_ro(void);
-- 
1.6.3.3

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From: James Bottomley <jejb@external.hp.com>

ARM cannot prevent cache movein, so this patch implements both the
flush and invalidate pieces of the API.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/arm/include/asm/cacheflush.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 1a711ea..1104ee9 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -436,6 +436,16 @@ static inline void flush_kernel_dcache_page(struct page *page)
 	if ((cache_is_vivt() || cache_is_vipt_aliasing()) && !PageHighMem(page))
 		__cpuc_flush_dcache_page(page_address(page));
 }
+static inline void flush_kernel_dcache_addr(void *addr)
+{
+	if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+		__cpuc_flush_dcache_page(addr);
+}
+static inline void invalidate_kernel_dcache_addr(void *addr)
+{
+	if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+		__cpuc_flush_dcache_page(addr);
+}
 
 #define flush_dcache_mmap_lock(mapping) \
 	spin_lock_irq(&(mapping)->tree_lock)
-- 
1.6.3.3


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From: James Bottomley <James.Bottomley@HansenPartnership.com>

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/sh/include/asm/cacheflush.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index 4c5462d..3cb8824 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -48,6 +48,14 @@ static inline void flush_kernel_dcache_page(struct page *page)
 {
 	flush_dcache_page(page);
 }
+static inline void flush_kernel_dcache_addr(void *addr)
+{
+	__flush_wback_region(addr, PAGE_SIZE);
+}
+static inline void invalidate_kernel_dcache_addr(void *addr)
+{
+	__flush_invalidate_region(addr, PAGE_SIZE);
+}
 
 #if defined(CONFIG_CPU_SH4) && !defined(CONFIG_CACHE_OFF)
 extern void copy_to_user_page(struct vm_area_struct *vma,
-- 
1.6.3.3

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch,gmane.linux.file-systems
Subject: [PATCH 5/6] block: permit I/O to vmalloc/vmap kernel pages
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From: James Bottomley <jejb@external.hp.com>

This updates bio_map_kern() to check for pages in the vmalloc address
range and call the new kernel flushing APIs if the are.  This should
allow any kernel user to pass a vmalloc/vmap area to block.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 fs/bio.c |   20 ++++++++++++++++++--
 1 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/fs/bio.c b/fs/bio.c
index 7673800..0cf7b79 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1120,6 +1120,14 @@ void bio_unmap_user(struct bio *bio)
 
 static void bio_map_kern_endio(struct bio *bio, int err)
 {
+	void *kaddr = bio->bi_private;
+
+	if (is_vmalloc_addr(kaddr)) {
+		int i;
+
+		for (i = 0; i < bio->bi_vcnt; i++)
+			invalidate_kernel_dcache_addr(kaddr + i * PAGE_SIZE);
+	}
 	bio_put(bio);
 }
 
@@ -1138,9 +1146,12 @@ static struct bio *__bio_map_kern(struct request_queue *q, void *data,
 	if (!bio)
 		return ERR_PTR(-ENOMEM);
 
+	bio->bi_private = data;
+
 	offset = offset_in_page(kaddr);
 	for (i = 0; i < nr_pages; i++) {
 		unsigned int bytes = PAGE_SIZE - offset;
+		struct page *page;
 
 		if (len <= 0)
 			break;
@@ -1148,8 +1159,13 @@ static struct bio *__bio_map_kern(struct request_queue *q, void *data,
 		if (bytes > len)
 			bytes = len;
 
-		if (bio_add_pc_page(q, bio, virt_to_page(data), bytes,
-				    offset) < bytes)
+		if (is_vmalloc_addr(data)) {
+			flush_kernel_dcache_addr(data);
+			page = vmalloc_to_page(data);
+		} else
+			page = virt_to_page(data);
+
+		if (bio_add_pc_page(q, bio, page, bytes, offset) < bytes)
 			break;
 
 		data += bytes;
-- 
1.6.3.3

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From - Thu Nov 08 21:04:57 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.file-systems,gmane.linux.ports.parisc
Subject: [PATCH 6/6] xfs: fix xfs to work with Virtually Indexed architectures
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Cc: Russell King <rmk@arm.linux.org.uk>,
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To: linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org,
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From: James Bottomley <jejb@external.hp.com>

xfs_buf.c includes what is essentially a hand rolled version of
blk_rq_map_kern().  In order to work properly with the vmalloc buffers
that xfs uses, this hand rolled routine must also implement the flushing
API for vmap/vmalloc areas.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 fs/xfs/linux-2.6/xfs_buf.c |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 965df12..320a6e4 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1132,12 +1132,26 @@ xfs_buf_bio_end_io(
 	xfs_buf_t		*bp = (xfs_buf_t *)bio->bi_private;
 	unsigned int		blocksize = bp->b_target->bt_bsize;
 	struct bio_vec		*bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
+	void			*vaddr = NULL;
+	int			i;
 
 	xfs_buf_ioerror(bp, -error);
 
+	if (is_vmalloc_addr(bp->b_addr))
+		for (i = 0; i < bp->b_page_count; i++)
+			if (bvec->bv_page == bp->b_pages[i]) {
+				vaddr = bp->b_addr + i*PAGE_SIZE;
+				break;
+			}
+
 	do {
 		struct page	*page = bvec->bv_page;
 
+		if (is_vmalloc_addr(bp->b_addr)) {
+			invalidate_kernel_dcache_addr(vaddr);
+			vaddr -= PAGE_SIZE;
+		}
+
 		ASSERT(!PagePrivate(page));
 		if (unlikely(bp->b_error)) {
 			if (bp->b_flags & XBF_READ)
@@ -1202,6 +1216,9 @@ _xfs_buf_ioapply(
 		bio->bi_end_io = xfs_buf_bio_end_io;
 		bio->bi_private = bp;
 
+		if (is_vmalloc_addr(bp->b_addr))
+			flush_kernel_dcache_addr(bp->b_addr);
+
 		bio_add_page(bio, bp->b_pages[0], PAGE_CACHE_SIZE, 0);
 		size = 0;
 
@@ -1228,6 +1245,9 @@ next_chunk:
 		if (nbytes > size)
 			nbytes = size;
 
+		if (is_vmalloc_addr(bp->b_addr))
+			flush_kernel_dcache_addr(bp->b_addr + PAGE_SIZE*map_i);
+
 		rbytes = bio_add_page(bio, bp->b_pages[map_i], nbytes, offset);
 		if (rbytes < nbytes)
 			break;
-- 
1.6.3.3


From - Thu Nov 08 21:04:57 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.man,gmane.linux.documentation,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
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Cc: rdunlap@xenotime.net, michael@ellerman.id.au, ralf@linux-mips.org,
        wli@holomorphy.com, mel@csn.ul.ie, dhowells@redhat.com, arnd@arndb.de,
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Even though mips does not support huge pages this flag needs to
be defined here to keep the compiler happy.  This is because
mips does not make use of mman-common.h, so any flags defined
there and used in common code need to be added to mips's mman.h
manually.

Signed-off-by: Eric B Munson <ebmunson@us.ibm.com>
---
 arch/mips/include/asm/mman.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/mips/include/asm/mman.h b/arch/mips/include/asm/mman.h
index e4d6f1f..c4f29da 100644
--- a/arch/mips/include/asm/mman.h
+++ b/arch/mips/include/asm/mman.h
@@ -46,6 +46,12 @@
 #define MAP_LOCKED	0x8000		/* pages are locked */
 #define MAP_POPULATE	0x10000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
+/*
+ * This flag is included even though huge pages are not supported because
+ * the flag is defined in mman-common.h and used in common vm code but
+ * mman-common.h is not included here
+ */
+#define MAP_HUGETLB	0x080000
 
 /*
  * Flags for msync
-- 
1.6.3.2

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From - Thu Nov 08 21:04:57 2018
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Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.man,gmane.linux.documentation,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: [PATCH 4/7] Add MAP_HUGETLB flag to alpha mman.h
Date: Fri, 18 Sep 2009 06:21:50 -0600
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Even though alpha does not support huge pages this flag needs to
be defined here to keep the compiler happy.  This is because
alpha does not make use of mman-common.h, so any flags defined
there and used in common code need to be added to alpha's mman.h
manually.

Signed-off-by: Eric B Munson <ebmunson@us.ibm.com>
---
 arch/alpha/include/asm/mman.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/alpha/include/asm/mman.h b/arch/alpha/include/asm/mman.h
index 90d7c35..704c304 100644
--- a/arch/alpha/include/asm/mman.h
+++ b/arch/alpha/include/asm/mman.h
@@ -28,6 +28,12 @@
 #define MAP_NORESERVE	0x10000		/* don't check for reservations */
 #define MAP_POPULATE	0x20000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x40000		/* do not block on IO */
+/*
+ * This flag is included even though huge pages are not supported because
+ * the flag is defined in mman-common.h and used in common vm code but
+ * mman-common.h is not included here
+ */
+#define MAP_HUGETLB	0x080000
 
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_SYNC		2		/* synchronous memory sync */
-- 
1.6.3.2

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From - Thu Nov 08 21:04:57 2018
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From: Eric B Munson <ebmunson@us.ibm.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.man,gmane.linux.documentation,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: [PATCH 0/7] Add pseudo-anonymous huge page mappings V3
Date: Fri, 18 Sep 2009 06:21:46 -0600
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To: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2184>

This patch set adds a flag to mmap that allows the user to request
a mapping to be backed with huge pages.  This mapping will borrow
functionality from the huge page shm code to create a file on the
kernel internal mount and use it to approximate an anonymous mapping.
The MAP_HUGETLB flag is a modifier to MAP_ANONYMOUS and will not work
without both flags being preset.

A new flag is necessary because there is no other way to hook into
huge pages without creating a file on a hugetlbfs mount which
wouldn't be MAP_ANONYMOUS.

To userspace, this mapping will behave just like an anonymous mapping
because the file is not accessible outside of the kernel.

This patch set is meant to simplify the programming model, presently
there is a large chunk of boiler plate code, contained in libhugetlbfs,
required to create private, hugepage backed mappings.  This patch set
would allow use of hugepages without linking to libhugetlbfs or having
hugetblfs mounted.

Unification of the VM code would provide these same benefits, but it
has been resisted each time that it has been suggested for several
reasons: it would break PAGE_SIZE assumptions across the kernel, it
makes page-table abstractions really expensive, and it does not
provide any benefit on architectures that do not support huge pages,
incurring fast path penalties without providing any benefit on these
architectures.

This verion includes the fixes posted to linux-mm as well as additions
to mman.h for the four archtiectures that do not make use of
mman-common.h.  The addition of the MAP_HUGETLB flag to these four
(xtensa, parisc, alpha, and mips) is required because MAP_HUGETLB is
used in common vm code.

Eric B Munson (7):
  hugetlbfs: Allow the creation of files suitable for MAP_PRIVATE on
    the vfs internal mount
  Add MAP_HUGETLB for mmaping pseudo-anonymous huge page regions
  Add MAP_HUGETLB example
  Add MAP_HUGETLB flag to alpha mman.h
  Add MAP_HUGETLB flag to xtensa mman.h
  Add MAP_HUGETLB flag to parisc mman.h
  Add MAP_HUGETLB flag to mips mman.h

 Documentation/vm/00-INDEX         |    2 +
 Documentation/vm/hugetlbpage.txt  |   14 ++++---
 Documentation/vm/map_hugetlb.c    |   77 +++++++++++++++++++++++++++++++++++++
 arch/alpha/include/asm/mman.h     |    6 +++
 arch/mips/include/asm/mman.h      |    6 +++
 arch/parisc/include/asm/mman.h    |    7 +++
 arch/xtensa/include/asm/mman.h    |    6 +++
 fs/hugetlbfs/inode.c              |   13 +++++-
 include/asm-generic/mman-common.h |    1 +
 include/linux/hugetlb.h           |   19 ++++++++-
 ipc/shm.c                         |    2 +-
 mm/mmap.c                         |   19 +++++++++
 12 files changed, 160 insertions(+), 12 deletions(-)
 create mode 100644 Documentation/vm/map_hugetlb.c

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From - Thu Nov 08 21:04:57 2018
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Subject: [PATCH 2/7] Add MAP_HUGETLB for mmaping pseudo-anonymous huge page regions
Date: Fri, 18 Sep 2009 06:21:48 -0600
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2185>

This patch adds a flag for mmap that will be used to request a huge
page region that will look like anonymous memory to user space.  This
is accomplished by using a file on the internal vfsmount.  MAP_HUGETLB
is a modifier of MAP_ANONYMOUS and so must be specified with it.  The
region will behave the same as a MAP_ANONYMOUS region using small pages.

Signed-off-by: Eric B Munson <ebmunson@us.ibm.com>
---
 include/asm-generic/mman-common.h |    1 +
 include/linux/hugetlb.h           |    7 +++++++
 mm/mmap.c                         |   19 +++++++++++++++++++
 3 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/mman-common.h b/include/asm-generic/mman-common.h
index 3b69ad3..e6adb68 100644
--- a/include/asm-generic/mman-common.h
+++ b/include/asm-generic/mman-common.h
@@ -19,6 +19,7 @@
 #define MAP_TYPE	0x0f		/* Mask for type of mapping */
 #define MAP_FIXED	0x10		/* Interpret addr exactly */
 #define MAP_ANONYMOUS	0x20		/* don't use a file */
+#define MAP_HUGETLB	0x080000	/* create a huge page mapping */
 
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_INVALIDATE	2		/* invalidate the caches */
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 38bb552..b0bc0fd 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -110,12 +110,19 @@ static inline void hugetlb_report_meminfo(struct seq_file *m)
 
 #endif /* !CONFIG_HUGETLB_PAGE */
 
+#define HUGETLB_ANON_FILE "anon_hugepage"
+
 enum {
 	/*
 	 * The file will be used as an shm file so shmfs accounting rules
 	 * apply
 	 */
 	HUGETLB_SHMFS_INODE     = 1,
+	/*
+	 * The file is being created on the internal vfs mount and shmfs
+	 * accounting rules do not apply
+	 */
+	HUGETLB_ANONHUGE_INODE  = 2,
 };
 
 #ifdef CONFIG_HUGETLBFS
diff --git a/mm/mmap.c b/mm/mmap.c
index 8101de4..9ca4f26 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -29,6 +29,7 @@
 #include <linux/rmap.h>
 #include <linux/mmu_notifier.h>
 #include <linux/perf_counter.h>
+#include <linux/hugetlb.h>
 
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
@@ -951,6 +952,24 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 	if (mm->map_count > sysctl_max_map_count)
 		return -ENOMEM;
 
+	if (flags & MAP_HUGETLB) {
+		struct user_struct *user = NULL;
+		if (file)
+			return -EINVAL;
+
+		/*
+		 * VM_NORESERVE is used because the reservations will be
+		 * taken when vm_ops->mmap() is called
+		 * A dummy user value is used because we are not locking
+		 * memory so no accounting is necessary
+		 */
+		len = ALIGN(len, huge_page_size(&default_hstate));
+		file = hugetlb_file_setup(HUGETLB_ANON_FILE, len, VM_NORESERVE,
+						&user, HUGETLB_ANONHUGE_INODE);
+		if (IS_ERR(file))
+			return PTR_ERR(file);
+	}
+
 	/* Obtain the address to map to. we verify (or select) it and ensure
 	 * that it represents a valid section of the address space.
 	 */
-- 
1.6.3.2

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From - Thu Nov 08 21:04:57 2018
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From: Eric B Munson <ebmunson@us.ibm.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.man,gmane.linux.documentation,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: [PATCH 3/7] Add MAP_HUGETLB example
Date: Fri, 18 Sep 2009 06:21:49 -0600
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        zohar@us.ibm.com, hugh@veritas.com, mtk.manpages@gmail.com,
        chris@zankel.net, linux-man@vger.kernel.org, linux-doc@vger.kernel.org,
        linux-alpha@vger.kernel.org, linux-mips@linux-mips.org,
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        Eric B Munson <ebmunson@us.ibm.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2186>

This patch adds an example of how to use the MAP_HUGETLB flag to the
vm documentation directory and a reference to the example in
hugetlbpage.txt.

Signed-off-by: Eric B Munson <ebmunson@us.ibm.com>
---
 Documentation/vm/00-INDEX        |    2 +
 Documentation/vm/hugetlbpage.txt |   14 ++++---
 Documentation/vm/map_hugetlb.c   |   77 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 87 insertions(+), 6 deletions(-)
 create mode 100644 Documentation/vm/map_hugetlb.c

diff --git a/Documentation/vm/00-INDEX b/Documentation/vm/00-INDEX
index 2f77ced..aabd973 100644
--- a/Documentation/vm/00-INDEX
+++ b/Documentation/vm/00-INDEX
@@ -20,3 +20,5 @@ slabinfo.c
 	- source code for a tool to get reports about slabs.
 slub.txt
 	- a short users guide for SLUB.
+map_hugetlb.c
+	- an example program that uses the MAP_HUGETLB mmap flag.
diff --git a/Documentation/vm/hugetlbpage.txt b/Documentation/vm/hugetlbpage.txt
index ea8714f..6a8feab 100644
--- a/Documentation/vm/hugetlbpage.txt
+++ b/Documentation/vm/hugetlbpage.txt
@@ -146,12 +146,14 @@ Regular chown, chgrp, and chmod commands (with right permissions) could be
 used to change the file attributes on hugetlbfs.
 
 Also, it is important to note that no such mount command is required if the
-applications are going to use only shmat/shmget system calls.  Users who
-wish to use hugetlb page via shared memory segment should be a member of
-a supplementary group and system admin needs to configure that gid into
-/proc/sys/vm/hugetlb_shm_group.  It is possible for same or different
-applications to use any combination of mmaps and shm* calls, though the
-mount of filesystem will be required for using mmap calls.
+applications are going to use only shmat/shmget system calls or mmap with
+MAP_HUGETLB.  Users who wish to use hugetlb page via shared memory segment
+should be a member of a supplementary group and system admin needs to
+configure that gid into /proc/sys/vm/hugetlb_shm_group.  It is possible for
+same or different applications to use any combination of mmaps and shm*
+calls, though the mount of filesystem will be required for using mmap calls
+without MAP_HUGETLB.  For an example of how to use mmap with MAP_HUGETLB see
+map_hugetlb.c.
 
 *******************************************************************
 
diff --git a/Documentation/vm/map_hugetlb.c b/Documentation/vm/map_hugetlb.c
new file mode 100644
index 0000000..b6c1931
--- /dev/null
+++ b/Documentation/vm/map_hugetlb.c
@@ -0,0 +1,77 @@
+/*
+ * Example of using hugepage memory in a user application using the mmap
+ * system call with MAP_HUGETLB flag.  Before running this program make
+ * sure the administrator has allocated enough default sized huge pages
+ * to cover the 256 MB allocation.
+ *
+ * For ia64 architecture, Linux kernel reserves Region number 4 for hugepages.
+ * That means the addresses starting with 0x800000... will need to be
+ * specified.  Specifying a fixed address is not required on ppc64, i386
+ * or x86_64.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+
+#define LENGTH (256UL*1024*1024)
+#define PROTECTION (PROT_READ | PROT_WRITE)
+
+#ifndef MAP_HUGETLB
+#define MAP_HUGETLB 0x080000
+#endif
+
+/* Only ia64 requires this */
+#ifdef __ia64__
+#define ADDR (void *)(0x8000000000000000UL)
+#define FLAGS (MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB | MAP_FIXED)
+#else
+#define ADDR (void *)(0x0UL)
+#define FLAGS (MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB)
+#endif
+
+void check_bytes(char *addr)
+{
+	printf("First hex is %x\n", *((unsigned int *)addr));
+}
+
+void write_bytes(char *addr)
+{
+	unsigned long i;
+
+	for (i = 0; i < LENGTH; i++)
+		*(addr + i) = (char)i;
+}
+
+void read_bytes(char *addr)
+{
+	unsigned long i;
+
+	check_bytes(addr);
+	for (i = 0; i < LENGTH; i++)
+		if (*(addr + i) != (char)i) {
+			printf("Mismatch at %lu\n", i);
+			break;
+		}
+}
+
+int main(void)
+{
+	void *addr;
+
+	addr = mmap(ADDR, LENGTH, PROTECTION, FLAGS, 0, 0);
+	if (addr == MAP_FAILED) {
+		perror("mmap");
+		exit(1);
+	}
+
+	printf("Returned address is %p\n", addr);
+	check_bytes(addr);
+	write_bytes(addr);
+	read_bytes(addr);
+
+	munmap(addr, LENGTH);
+
+	return 0;
+}
-- 
1.6.3.2

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Subject: [PATCH 1/7] hugetlbfs: Allow the creation of files suitable for MAP_PRIVATE on the vfs internal mount
Date: Fri, 18 Sep 2009 06:21:47 -0600
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        fengguang.wu@intel.com, shuber2@gmail.com, hugh.dickins@tiscali.co.uk,
        zohar@us.ibm.com, hugh@veritas.com, mtk.manpages@gmail.com,
        chris@zankel.net, linux-man@vger.kernel.org, linux-doc@vger.kernel.org,
        linux-alpha@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linux-arch@vger.kernel.org,
        Eric B Munson <ebmunson@us.ibm.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        akpm@linux-foundation.org
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There are two means of creating mappings backed by huge pages:

        1. mmap() a file created on hugetlbfs
        2. Use shm which creates a file on an internal mount which essentially
           maps it MAP_SHARED

The internal mount is only used for shared mappings but there is very
little that stops it being used for private mappings. This patch extends
hugetlbfs_file_setup() to deal with the creation of files that will be
mapped MAP_PRIVATE on the internal hugetlbfs mount. This extended API is
used in a subsequent patch to implement the MAP_HUGETLB mmap() flag.

Signed-off-by: Eric Munson <ebmunson@us.ibm.com>
---
 fs/hugetlbfs/inode.c    |   13 ++++++++++---
 include/linux/hugetlb.h |   12 ++++++++++--
 ipc/shm.c               |    2 +-
 3 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index a93b885..0837fea 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -507,6 +507,13 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid,
 		inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
 		INIT_LIST_HEAD(&inode->i_mapping->private_list);
 		info = HUGETLBFS_I(inode);
+		/*
+		 * The policy is initialized here even if we are creating a
+		 * private inode because initialization simply creates an
+		 * an empty rb tree and calls spin_lock_init(), later when we
+		 * call mpol_free_shared_policy() it will just return because
+		 * the rb tree will still be empty.
+		 */
 		mpol_shared_policy_init(&info->policy, NULL);
 		switch (mode & S_IFMT) {
 		default:
@@ -931,13 +938,13 @@ static struct file_system_type hugetlbfs_fs_type = {
 
 static struct vfsmount *hugetlbfs_vfsmount;
 
-static int can_do_hugetlb_shm(void)
+static int can_do_hugetlb_shm()
 {
 	return capable(CAP_IPC_LOCK) || in_group_p(sysctl_hugetlb_shm_group);
 }
 
 struct file *hugetlb_file_setup(const char *name, size_t size, int acctflag,
-						struct user_struct **user)
+				struct user_struct **user, int creat_flags)
 {
 	int error = -ENOMEM;
 	struct file *file;
@@ -949,7 +956,7 @@ struct file *hugetlb_file_setup(const char *name, size_t size, int acctflag,
 	if (!hugetlbfs_vfsmount)
 		return ERR_PTR(-ENOENT);
 
-	if (!can_do_hugetlb_shm()) {
+	if (creat_flags == HUGETLB_SHMFS_INODE && !can_do_hugetlb_shm()) {
 		*user = current_user();
 		if (user_shm_lock(size, *user)) {
 			WARN_ONCE(1,
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 5cbc620..38bb552 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -110,6 +110,14 @@ static inline void hugetlb_report_meminfo(struct seq_file *m)
 
 #endif /* !CONFIG_HUGETLB_PAGE */
 
+enum {
+	/*
+	 * The file will be used as an shm file so shmfs accounting rules
+	 * apply
+	 */
+	HUGETLB_SHMFS_INODE     = 1,
+};
+
 #ifdef CONFIG_HUGETLBFS
 struct hugetlbfs_config {
 	uid_t   uid;
@@ -148,7 +156,7 @@ static inline struct hugetlbfs_sb_info *HUGETLBFS_SB(struct super_block *sb)
 extern const struct file_operations hugetlbfs_file_operations;
 extern struct vm_operations_struct hugetlb_vm_ops;
 struct file *hugetlb_file_setup(const char *name, size_t size, int acct,
-						struct user_struct **user);
+				struct user_struct **user, int creat_flags);
 int hugetlb_get_quota(struct address_space *mapping, long delta);
 void hugetlb_put_quota(struct address_space *mapping, long delta);
 
@@ -170,7 +178,7 @@ static inline void set_file_hugepages(struct file *file)
 
 #define is_file_hugepages(file)			0
 #define set_file_hugepages(file)		BUG()
-#define hugetlb_file_setup(name,size,acct,user)	ERR_PTR(-ENOSYS)
+#define hugetlb_file_setup(name,size,acct,user,creat)	ERR_PTR(-ENOSYS)
 
 #endif /* !CONFIG_HUGETLBFS */
 
diff --git a/ipc/shm.c b/ipc/shm.c
index 30162a5..9eb1488 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -370,7 +370,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 		if (shmflg & SHM_NORESERVE)
 			acctflag = VM_NORESERVE;
 		file = hugetlb_file_setup(name, size, acctflag,
-							&shp->mlock_user);
+					&shp->mlock_user, HUGETLB_SHMFS_INODE);
 	} else {
 		/*
 		 * Do not allow no accounting for OVERCOMMIT_NEVER, even
-- 
1.6.3.2

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Subject: [PATCH 5/7] Add MAP_HUGETLB flag to xtensa mman.h
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        Eric B Munson <ebmunson@us.ibm.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
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Even though xtensa does not support huge pages this flag needs to
be defined here to keep the compiler happy.  This is because
xtensa does not make use of mman-common.h, so any flags defined
there and used in common code need to be added to xtensa's mman.h
manually.

Signed-off-by: Eric B Munson <ebmunson@us.ibm.com>
---
 arch/xtensa/include/asm/mman.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/xtensa/include/asm/mman.h b/arch/xtensa/include/asm/mman.h
index 9b92620..2572f5a 100644
--- a/arch/xtensa/include/asm/mman.h
+++ b/arch/xtensa/include/asm/mman.h
@@ -53,6 +53,12 @@
 #define MAP_LOCKED	0x8000		/* pages are locked */
 #define MAP_POPULATE	0x10000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
+/*
+ * This flag is included even though huge pages are not supported because
+ * the flag is defined in mman-common.h and used in common vm code but
+ * mman-common.h is not included here
+ */
+#define MAP_HUGETLB	0x080000
 
 /*
  * Flags for msync
-- 
1.6.3.2

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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2189>

Even though parisc does not support huge pages this flag needs to
be defined here to keep the compiler happy.  This is because
parisc does not make use of mman-common.h, so any flags defined
there and used in common code need to be added to parisc's mman.h
manually.

Signed-off-by: Eric B Munson <ebmunson@us.ibm.com>
---
 arch/parisc/include/asm/mman.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/mman.h b/arch/parisc/include/asm/mman.h
index defe752..7563d0c 100644
--- a/arch/parisc/include/asm/mman.h
+++ b/arch/parisc/include/asm/mman.h
@@ -58,4 +58,11 @@
 #define MAP_FILE	0
 #define MAP_VARIABLE	0
 
+/*
+ * This flag is included even though huge pages are not supported because
+ * the flag is defined in mman-common.h and used in common vm code but
+ * mman-common.h is not included here
+ */
+#define MAP_HUGETLB	0x080000
+
 #endif /* __PARISC_MMAN_H__ */
-- 
1.6.3.2

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From - Thu Nov 08 21:04:57 2018
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Subject: [PATCH 1/7] hugetlbfs: Allow the creation of files suitable for MAP_PRIVATE on the vfs internal mount
Date: Fri, 18 Sep 2009 06:37:58 -0600
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2190>

There are two means of creating mappings backed by huge pages:

        1. mmap() a file created on hugetlbfs
        2. Use shm which creates a file on an internal mount which essentially
           maps it MAP_SHARED

The internal mount is only used for shared mappings but there is very
little that stops it being used for private mappings. This patch extends
hugetlbfs_file_setup() to deal with the creation of files that will be
mapped MAP_PRIVATE on the internal hugetlbfs mount. This extended API is
used in a subsequent patch to implement the MAP_HUGETLB mmap() flag.

Signed-off-by: Eric Munson <ebmunson@us.ibm.com>
---
 fs/hugetlbfs/inode.c    |   11 +++++++++--
 include/linux/hugetlb.h |   12 ++++++++++--
 ipc/shm.c               |    2 +-
 3 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index a93b885..c50853e 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -507,6 +507,13 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid,
 		inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
 		INIT_LIST_HEAD(&inode->i_mapping->private_list);
 		info = HUGETLBFS_I(inode);
+		/*
+		 * The policy is initialized here even if we are creating a
+		 * private inode because initialization simply creates an
+		 * an empty rb tree and calls spin_lock_init(), later when we
+		 * call mpol_free_shared_policy() it will just return because
+		 * the rb tree will still be empty.
+		 */
 		mpol_shared_policy_init(&info->policy, NULL);
 		switch (mode & S_IFMT) {
 		default:
@@ -937,7 +944,7 @@ static int can_do_hugetlb_shm(void)
 }
 
 struct file *hugetlb_file_setup(const char *name, size_t size, int acctflag,
-						struct user_struct **user)
+				struct user_struct **user, int creat_flags)
 {
 	int error = -ENOMEM;
 	struct file *file;
@@ -949,7 +956,7 @@ struct file *hugetlb_file_setup(const char *name, size_t size, int acctflag,
 	if (!hugetlbfs_vfsmount)
 		return ERR_PTR(-ENOENT);
 
-	if (!can_do_hugetlb_shm()) {
+	if (creat_flags == HUGETLB_SHMFS_INODE && !can_do_hugetlb_shm()) {
 		*user = current_user();
 		if (user_shm_lock(size, *user)) {
 			WARN_ONCE(1,
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 5cbc620..38bb552 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -110,6 +110,14 @@ static inline void hugetlb_report_meminfo(struct seq_file *m)
 
 #endif /* !CONFIG_HUGETLB_PAGE */
 
+enum {
+	/*
+	 * The file will be used as an shm file so shmfs accounting rules
+	 * apply
+	 */
+	HUGETLB_SHMFS_INODE     = 1,
+};
+
 #ifdef CONFIG_HUGETLBFS
 struct hugetlbfs_config {
 	uid_t   uid;
@@ -148,7 +156,7 @@ static inline struct hugetlbfs_sb_info *HUGETLBFS_SB(struct super_block *sb)
 extern const struct file_operations hugetlbfs_file_operations;
 extern struct vm_operations_struct hugetlb_vm_ops;
 struct file *hugetlb_file_setup(const char *name, size_t size, int acct,
-						struct user_struct **user);
+				struct user_struct **user, int creat_flags);
 int hugetlb_get_quota(struct address_space *mapping, long delta);
 void hugetlb_put_quota(struct address_space *mapping, long delta);
 
@@ -170,7 +178,7 @@ static inline void set_file_hugepages(struct file *file)
 
 #define is_file_hugepages(file)			0
 #define set_file_hugepages(file)		BUG()
-#define hugetlb_file_setup(name,size,acct,user)	ERR_PTR(-ENOSYS)
+#define hugetlb_file_setup(name,size,acct,user,creat)	ERR_PTR(-ENOSYS)
 
 #endif /* !CONFIG_HUGETLBFS */
 
diff --git a/ipc/shm.c b/ipc/shm.c
index 30162a5..9eb1488 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -370,7 +370,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 		if (shmflg & SHM_NORESERVE)
 			acctflag = VM_NORESERVE;
 		file = hugetlb_file_setup(name, size, acctflag,
-							&shp->mlock_user);
+					&shp->mlock_user, HUGETLB_SHMFS_INODE);
 	} else {
 		/*
 		 * Do not allow no accounting for OVERCOMMIT_NEVER, even
-- 
1.6.3.2

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From - Thu Nov 08 21:04:57 2018
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Subject: Re: [PATCH 1/7] hugetlbfs: Allow the creation of files suitable for
 MAP_PRIVATE on the vfs internal mount
Date: Fri, 18 Sep 2009 13:06:59 -0700 (PDT)
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Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2191>

On Fri, 18 Sep 2009, Eric B Munson wrote:

> There are two means of creating mappings backed by huge pages:
> 
>         1. mmap() a file created on hugetlbfs
>         2. Use shm which creates a file on an internal mount which essentially
>            maps it MAP_SHARED
> 
> The internal mount is only used for shared mappings but there is very
> little that stops it being used for private mappings. This patch extends
> hugetlbfs_file_setup() to deal with the creation of files that will be
> mapped MAP_PRIVATE on the internal hugetlbfs mount. This extended API is
> used in a subsequent patch to implement the MAP_HUGETLB mmap() flag.
> 
> Signed-off-by: Eric Munson <ebmunson@us.ibm.com>

Acked-by: David Rientjes <rientjes@google.com>
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From - Thu Nov 08 21:04:58 2018
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From: David Rientjes <rientjes@google.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.man,gmane.linux.documentation,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 2/7] Add MAP_HUGETLB for mmaping pseudo-anonymous huge
 page regions
Date: Fri, 18 Sep 2009 13:08:22 -0700 (PDT)
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References: <cover.1253272709.git.ebmunson@us.ibm.com> <653aa659fd7970f7428f4eb41fa10693064e4daf.1253272709.git.ebmunson@us.ibm.com> <08251014d2eb30e9016bab16404133f5c13beacf.1253272709.git.ebmunson@us.ibm.com>
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Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        akpm@linux-foundation.org, rdunlap@xenotime.net,
        michael@ellerman.id.au, ralf@linux-mips.org, wli@holomorphy.com,
        mel@csn.ul.ie, dhowells@redhat.com, arnd@arndb.de,
        fengguang.wu@intel.com, shuber2@gmail.com, hugh.dickins@tiscali.co.uk,
        zohar@us.ibm.com, hugh@veritas.com, mtk.manpages@gmail.com,
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To: Eric B Munson <ebmunson@us.ibm.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2192>

On Fri, 18 Sep 2009, Eric B Munson wrote:

> This patch adds a flag for mmap that will be used to request a huge
> page region that will look like anonymous memory to user space.  This
> is accomplished by using a file on the internal vfsmount.  MAP_HUGETLB
> is a modifier of MAP_ANONYMOUS and so must be specified with it.  The
> region will behave the same as a MAP_ANONYMOUS region using small pages.
> 
> Signed-off-by: Eric B Munson <ebmunson@us.ibm.com>

Acked-by: David Rientjes <rientjes@google.com>

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From - Thu Nov 08 21:04:58 2018
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From: Tim Abbott <tabbott@ksplice.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v2 0/2] Linker script cleanup patches for parisc
Date: Fri, 18 Sep 2009 16:34:36 -0400
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Cc: Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	Tim Abbott <tabbott@ksplice.com>
To: linux-parisc@vger.kernel.org
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This is an updated version of the patch series I sent on September 6
cleaning up the parisc architecture's linker scripts.  It differs from
the previous version only in having been rebased on top of Linus'
current master (and is a complete rewrite of the version that got some
review back in May:
<http://linux.derkeiler.com/Mailing-Lists/Kernel/2009-05/msg00095.html>).

This cross-architecture linker script cleanup project is in
preparation for adding support for building the kernel with
-ffunction-sections -fdata-sections, which is a prerequisite for
Ksplice.

	-Tim Abbott

Tim Abbott (2):
  parisc: Clean up linker script using new linker script macros.
  parisc: Remove useless altinstructions code copied from x86.

 arch/parisc/kernel/vmlinux.lds.S |  104 ++------------------------------------
 1 files changed, 4 insertions(+), 100 deletions(-)

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From - Thu Nov 08 21:04:58 2018
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From: Tim Abbott <tabbott@ksplice.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v2 2/2] parisc: Remove useless altinstructions code copied from x86.
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Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 arch/parisc/kernel/vmlinux.lds.S |   25 -------------------------
 1 files changed, 0 insertions(+), 25 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 3fd66d9..775be27 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -135,31 +135,6 @@ SECTIONS
 	INIT_TEXT_SECTION(16384)
 	INIT_DATA_SECTION(16)
 
-	/* alternate instruction replacement.  This is a mechanism x86 uses
-	 * to detect the CPU type and replace generic instruction sequences
-	 * with CPU specific ones.  We don't currently do this in PA, but
-	 * it seems like a good idea...
-	 */
-	. = ALIGN(4);
-	.altinstructions : {
-		__alt_instructions = .;
-		*(.altinstructions)
-		__alt_instructions_end = .; 
-	} 
-	.altinstr_replacement : {
-		*(.altinstr_replacement)
-	} 
-
-	/* .exit.text is discard at runtime, not link time, to deal with references
-	 *  from .altinstructions and .eh_frame
-	 */
-	.exit.text : {
-		EXIT_TEXT
-	}
-	.exit.data : {
-		EXIT_DATA
-	}

From - Thu Nov 08 21:04:58 2018
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From: Tim Abbott <tabbott@ksplice.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v2 1/2] parisc: Clean up linker script using new linker script macros.
Date: Fri, 18 Sep 2009 16:34:37 -0400
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Cc: Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	Tim Abbott <tabbott@ksplice.com>
To: linux-parisc@vger.kernel.org
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This patch has the (likely harmless) side effect of moving
.data.init_task inside the _edata.

It also changes the alignment of .data.init_task from 16384 to
THREAD_SIZE, which can in some configurations be larger than 16384.  I
believe that this change fixes a potential bug on those
configurations.

Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: Sam Ravnborg <sam@ravnborg.org>
---
 arch/parisc/kernel/vmlinux.lds.S |   79 ++------------------------------------
 1 files changed, 4 insertions(+), 75 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index aea1784..3fd66d9 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -77,13 +77,7 @@ SECTIONS
 	 */
 	. = ALIGN(PAGE_SIZE);
 	data_start = .;
-	. = ALIGN(16);
-	/* Exception table */
-	__ex_table : {
-		__start___ex_table = .;
-		*(__ex_table)
-		__stop___ex_table = .;
-	}
+	EXCEPTION_TABLE(16)
 
 	NOTES
 
@@ -94,23 +88,8 @@ SECTIONS
 		__stop___unwind = .;
 	}
 
-	/* rarely changed data like cpu maps */
-	. = ALIGN(16);
-	.data.read_mostly : {
-		*(.data.read_mostly)
-	}
-
-	. = ALIGN(L1_CACHE_BYTES);
 	/* Data */
-	.data : {
-		DATA_DATA
-		CONSTRUCTORS
-	}
-
-	. = ALIGN(L1_CACHE_BYTES);
-	.data.cacheline_aligned : {
-		*(.data.cacheline_aligned)
-	}
+	RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
 
 	/* PA-RISC locks requires 16-byte alignment */
 	. = ALIGN(16);
@@ -118,17 +97,6 @@ SECTIONS
 		*(.data.lock_aligned)
 	}
 
-	/* nosave data is really only used for software suspend...it's here
-	 * just in case we ever implement it
-	 */
-	. = ALIGN(PAGE_SIZE);
-	__nosave_begin = .;
-	.data_nosave : {
-		*(.data.nosave)
-	}
-	. = ALIGN(PAGE_SIZE);
-	__nosave_end = .;
-
 	/* End of data section */
 	_edata = .;
 
@@ -147,14 +115,6 @@ SECTIONS
 	}
 	__bss_stop = .;
 
-
-	/* assembler code expects init_task to be 16k aligned */
-	. = ALIGN(16384);
-	/* init_task */
-	.data.init_task : {
-		*(.data.init_task)
-	}
-
 #ifdef CONFIG_64BIT
 	. = ALIGN(16);
 	/* Linkage tables */
@@ -172,31 +132,8 @@ SECTIONS
 	/* reserve space for interrupt stack by aligning __init* to 16k */
 	. = ALIGN(16384);
 	__init_begin = .;
-	.init.text : { 
-		_sinittext = .;
-		INIT_TEXT
-		_einittext = .;
-	}
-	.init.data : {
-		INIT_DATA
-	}
-	. = ALIGN(16);
-	.init.setup : {
-		__setup_start = .;
-		*(.init.setup)
-		__setup_end = .;
-	}
-	.initcall.init : {
-		__initcall_start = .;
-		INITCALLS
-		__initcall_end = .;
-	}
-	.con_initcall.init : {
-		__con_initcall_start = .;
-		*(.con_initcall.init)
-		__con_initcall_end = .;
-	}
-	SECURITY_INIT
+	INIT_TEXT_SECTION(16384)
+	INIT_DATA_SECTION(16)
 
 	/* alternate instruction replacement.  This is a mechanism x86 uses
 	 * to detect the CPU type and replace generic instruction sequences
@@ -222,14 +159,6 @@ SECTIONS
 	.exit.data : {
 		EXIT_DATA
 	}
-#ifdef CONFIG_BLK_DEV_INITRD
-	. = ALIGN(PAGE_SIZE);
-	.init.ramfs : {
-		__initramfs_start = .;
-		*(.init.ramfs)
-		__initramfs_end = .;
-	}
-#endif
 
 	PERCPU(PAGE_SIZE)
 	. = ALIGN(PAGE_SIZE);
-- 
1.6.3.3

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From - Thu Nov 08 21:04:58 2018
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From: Sam Ravnborg <sam@ravnborg.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v2 0/2] Linker script cleanup patches for parisc
Date: Sat, 19 Sep 2009 10:38:15 +0200
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On Fri, Sep 18, 2009 at 04:34:36PM -0400, Tim Abbott wrote:
> This is an updated version of the patch series I sent on September 6
> cleaning up the parisc architecture's linker scripts.  It differs from
> the previous version only in having been rebased on top of Linus'
> current master (and is a complete rewrite of the version that got some
> review back in May:
> <http://linux.derkeiler.com/Mailing-Lists/Kernel/2009-05/msg00095.html>).
> 
> This cross-architecture linker script cleanup project is in
> preparation for adding support for building the kernel with
> -ffunction-sections -fdata-sections, which is a prerequisite for
> Ksplice.
> 
> 	-Tim Abbott
> 
> Tim Abbott (2):
>   parisc: Clean up linker script using new linker script macros.
>   parisc: Remove useless altinstructions code copied from x86.

Looks good.

Both have my:

Acked-by: Sam Ravnborg <sam@ravnborg.org>

	Sam
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From: Jaswinder Singh Rajput <jaswinder@kernel.org>
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Subject: [PATCH] PARISC: includecheck fix: signal.c
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fix the following 'make includecheck' warning:

  arch/parisc/kernel/signal.c: linux/compat.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
---
 arch/parisc/kernel/signal.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 8eb3c63..5d5a710 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -34,7 +34,6 @@
 #include <asm/asm-offsets.h>
 
 #ifdef CONFIG_COMPAT
-#include <linux/compat.h>
 #include "signal32.h"
 #endif
 
-- 
1.6.0.6


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From - Thu Nov 08 21:04:58 2018
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From: Tim Abbott <tabbott@ksplice.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 08/13] parisc: Clean up linker script using new linker script macros.
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Cc: linux-kernel@vger.kernel.org, Sam Ravnborg <sam@ravnborg.org>,
	Tim Abbott <tabbott@ksplice.com>,
	Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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This patch has the (likely harmless) side effect of moving
.data.init_task inside the _edata.

It also changes the alignment of .data.init_task from 16384 to
THREAD_SIZE, which can in some configurations be larger than 16384.  I
believe that this change fixes a potential bug on those
configurations.

Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Acked-by: Sam Ravnborg <sam@ravnborg.org>
---
 arch/parisc/kernel/vmlinux.lds.S |   79 ++------------------------------------
 1 files changed, 4 insertions(+), 75 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index aea1784..3fd66d9 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -77,13 +77,7 @@ SECTIONS
 	 */
 	. = ALIGN(PAGE_SIZE);
 	data_start = .;
-	. = ALIGN(16);
-	/* Exception table */
-	__ex_table : {
-		__start___ex_table = .;
-		*(__ex_table)
-		__stop___ex_table = .;
-	}
+	EXCEPTION_TABLE(16)
 
 	NOTES
 
@@ -94,23 +88,8 @@ SECTIONS
 		__stop___unwind = .;
 	}
 
-	/* rarely changed data like cpu maps */
-	. = ALIGN(16);
-	.data.read_mostly : {
-		*(.data.read_mostly)
-	}
-
-	. = ALIGN(L1_CACHE_BYTES);
 	/* Data */
-	.data : {
-		DATA_DATA
-		CONSTRUCTORS
-	}
-
-	. = ALIGN(L1_CACHE_BYTES);
-	.data.cacheline_aligned : {
-		*(.data.cacheline_aligned)
-	}
+	RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
 
 	/* PA-RISC locks requires 16-byte alignment */
 	. = ALIGN(16);
@@ -118,17 +97,6 @@ SECTIONS
 		*(.data.lock_aligned)
 	}
 
-	/* nosave data is really only used for software suspend...it's here
-	 * just in case we ever implement it
-	 */
-	. = ALIGN(PAGE_SIZE);
-	__nosave_begin = .;
-	.data_nosave : {
-		*(.data.nosave)
-	}
-	. = ALIGN(PAGE_SIZE);
-	__nosave_end = .;
-
 	/* End of data section */
 	_edata = .;
 
@@ -147,14 +115,6 @@ SECTIONS
 	}
 	__bss_stop = .;
 
-
-	/* assembler code expects init_task to be 16k aligned */
-	. = ALIGN(16384);
-	/* init_task */
-	.data.init_task : {
-		*(.data.init_task)
-	}
-
 #ifdef CONFIG_64BIT
 	. = ALIGN(16);
 	/* Linkage tables */
@@ -172,31 +132,8 @@ SECTIONS
 	/* reserve space for interrupt stack by aligning __init* to 16k */
 	. = ALIGN(16384);
 	__init_begin = .;
-	.init.text : { 
-		_sinittext = .;
-		INIT_TEXT
-		_einittext = .;
-	}
-	.init.data : {
-		INIT_DATA
-	}
-	. = ALIGN(16);
-	.init.setup : {
-		__setup_start = .;
-		*(.init.setup)
-		__setup_end = .;
-	}
-	.initcall.init : {
-		__initcall_start = .;
-		INITCALLS
-		__initcall_end = .;
-	}
-	.con_initcall.init : {
-		__con_initcall_start = .;
-		*(.con_initcall.init)
-		__con_initcall_end = .;
-	}
-	SECURITY_INIT
+	INIT_TEXT_SECTION(16384)
+	INIT_DATA_SECTION(16)
 
 	/* alternate instruction replacement.  This is a mechanism x86 uses
 	 * to detect the CPU type and replace generic instruction sequences
@@ -222,14 +159,6 @@ SECTIONS
 	.exit.data : {
 		EXIT_DATA
 	}
-#ifdef CONFIG_BLK_DEV_INITRD
-	. = ALIGN(PAGE_SIZE);
-	.init.ramfs : {
-		__initramfs_start = .;
-		*(.init.ramfs)
-		__initramfs_end = .;
-	}
-#endif
 
 	PERCPU(PAGE_SIZE)
 	. = ALIGN(PAGE_SIZE);
-- 
1.6.3.3


From - Thu Nov 08 21:04:58 2018
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From: Tim Abbott <tabbott@ksplice.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 09/13] parisc: Remove useless altinstructions code copied from x86.
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	Tim Abbott <tabbott@ksplice.com>,
	Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Acked-by: Sam Ravnborg <sam@ravnborg.org>
---
 arch/parisc/kernel/vmlinux.lds.S |   25 -------------------------
 1 files changed, 0 insertions(+), 25 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 3fd66d9..775be27 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -135,31 +135,6 @@ SECTIONS
 	INIT_TEXT_SECTION(16384)
 	INIT_DATA_SECTION(16)
 
-	/* alternate instruction replacement.  This is a mechanism x86 uses
-	 * to detect the CPU type and replace generic instruction sequences
-	 * with CPU specific ones.  We don't currently do this in PA, but
-	 * it seems like a good idea...
-	 */
-	. = ALIGN(4);
-	.altinstructions : {
-		__alt_instructions = .;
-		*(.altinstructions)
-		__alt_instructions_end = .; 
-	} 
-	.altinstr_replacement : {
-		*(.altinstr_replacement)
-	} 
-
-	/* .exit.text is discard at runtime, not link time, to deal with references
-	 *  from .altinstructions and .eh_frame
-	 */
-	.exit.text : {
-		EXIT_TEXT
-	}
-	.exit.data : {
-		EXIT_DATA
-	}

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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH] PARISC: includecheck fix: signal.c
Date: Wed, 23 Sep 2009 15:54:25 -0400
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	LKML <linux-kernel@vger.kernel.org>
To: Jaswinder Singh Rajput <jaswinder@kernel.org>
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On Tue, Sep 22, 2009 at 07:05:32PM +0530, Jaswinder Singh Rajput wrote:
> 
> fix the following 'make includecheck' warning:
> 
>   arch/parisc/kernel/signal.c: linux/compat.h is included more than once.
> 
> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>

Applied, thanks.
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From - Thu Nov 08 21:04:58 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH 09/13] parisc: Remove useless altinstructions code
	copied from x86.
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On Tue, Sep 22, 2009 at 10:22:23AM -0400, Tim Abbott wrote:
> Signed-off-by: Tim Abbott <tabbott@ksplice.com>
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: Helge Deller <deller@gmx.de>
> Cc: linux-parisc@vger.kernel.org
> Acked-by: Sam Ravnborg <sam@ravnborg.org>

Heh, I had a patch to use this, but I guess I never finished it, (to nop
out some cache flushes and syncs on coherent architectures in the iommu
code.) I'll add a hunk to bring it back if/when I ever submit that
change.

cheers, Kyle
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From - Thu Nov 08 21:04:58 2018
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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Newsgroups: gmane.linux.ports.ppc64.devel,gmane.linux.ports.mips.general,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha
Subject: Re: [PATCH 00/10] Add support for GCC's __builtin_unreachable()
	and use it in BUG.
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Cc: linux-mips@linux-mips.org, Heiko Carstens <heiko.carstens@de.ibm.com>,
	linuxppc-dev@ozlabs.org, Paul Mackerras <paulus@samba.org>,
	"H. Peter Anvin" <hpa@zytor.com>, linux-s390@vger.kernel.org,
	linux-am33-list@redhat.com, Helge Deller <deller@gmx.de>,
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To: David Daney <ddaney@caviumnetworks.com>
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On Thu, 2009-09-10 at 16:54 -0700, David Daney wrote:
> Starting with version 4.5, GCC has a new built-in function called
> __builtin_unreachable().  The function tells the compiler that control
> flow will never reach that point.  Currently we trick the compiler by
> putting in for(;;); but this has the disadvantage that extra code is
> emitted for an endless loop.  For an i386 kernel using
> __builtin_unreachable() results in an allyesconfig that is nearly 4000
> bytes smaller.

For the powerpc part:

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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Subject: [PATCH v2 02/11] parisc: Clean up linker script using new linker script macros.
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To: Linus Torvalds <torvalds@linux-foundation.org>
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This patch has the (likely harmless) side effect of moving
.data.init_task inside the _edata.

It also changes the alignment of .data.init_task from 16384 to
THREAD_SIZE, which can in some configurations be larger than 16384.  I
believe that this change fixes a potential bug on those
configurations.

Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Acked-by: Sam Ravnborg <sam@ravnborg.org>
---
 arch/parisc/kernel/vmlinux.lds.S |   79 ++------------------------------------
 1 files changed, 4 insertions(+), 75 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index aea1784..3fd66d9 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -77,13 +77,7 @@ SECTIONS
 	 */
 	. = ALIGN(PAGE_SIZE);
 	data_start = .;
-	. = ALIGN(16);
-	/* Exception table */
-	__ex_table : {
-		__start___ex_table = .;
-		*(__ex_table)
-		__stop___ex_table = .;
-	}
+	EXCEPTION_TABLE(16)
 
 	NOTES
 
@@ -94,23 +88,8 @@ SECTIONS
 		__stop___unwind = .;
 	}
 
-	/* rarely changed data like cpu maps */
-	. = ALIGN(16);
-	.data.read_mostly : {
-		*(.data.read_mostly)
-	}
-
-	. = ALIGN(L1_CACHE_BYTES);
 	/* Data */
-	.data : {
-		DATA_DATA
-		CONSTRUCTORS
-	}
-
-	. = ALIGN(L1_CACHE_BYTES);
-	.data.cacheline_aligned : {
-		*(.data.cacheline_aligned)
-	}
+	RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
 
 	/* PA-RISC locks requires 16-byte alignment */
 	. = ALIGN(16);
@@ -118,17 +97,6 @@ SECTIONS
 		*(.data.lock_aligned)
 	}
 
-	/* nosave data is really only used for software suspend...it's here
-	 * just in case we ever implement it
-	 */
-	. = ALIGN(PAGE_SIZE);
-	__nosave_begin = .;
-	.data_nosave : {
-		*(.data.nosave)
-	}
-	. = ALIGN(PAGE_SIZE);
-	__nosave_end = .;
-
 	/* End of data section */
 	_edata = .;
 
@@ -147,14 +115,6 @@ SECTIONS
 	}
 	__bss_stop = .;
 
-
-	/* assembler code expects init_task to be 16k aligned */
-	. = ALIGN(16384);
-	/* init_task */
-	.data.init_task : {
-		*(.data.init_task)
-	}
-
 #ifdef CONFIG_64BIT
 	. = ALIGN(16);
 	/* Linkage tables */
@@ -172,31 +132,8 @@ SECTIONS
 	/* reserve space for interrupt stack by aligning __init* to 16k */
 	. = ALIGN(16384);
 	__init_begin = .;
-	.init.text : { 
-		_sinittext = .;
-		INIT_TEXT
-		_einittext = .;
-	}
-	.init.data : {
-		INIT_DATA
-	}
-	. = ALIGN(16);
-	.init.setup : {
-		__setup_start = .;
-		*(.init.setup)
-		__setup_end = .;
-	}
-	.initcall.init : {
-		__initcall_start = .;
-		INITCALLS
-		__initcall_end = .;
-	}
-	.con_initcall.init : {
-		__con_initcall_start = .;
-		*(.con_initcall.init)
-		__con_initcall_end = .;
-	}
-	SECURITY_INIT
+	INIT_TEXT_SECTION(16384)
+	INIT_DATA_SECTION(16)
 
 	/* alternate instruction replacement.  This is a mechanism x86 uses
 	 * to detect the CPU type and replace generic instruction sequences
@@ -222,14 +159,6 @@ SECTIONS
 	.exit.data : {
 		EXIT_DATA
 	}
-#ifdef CONFIG_BLK_DEV_INITRD
-	. = ALIGN(PAGE_SIZE);
-	.init.ramfs : {
-		__initramfs_start = .;
-		*(.init.ramfs)
-		__initramfs_end = .;
-	}
-#endif
 
 	PERCPU(PAGE_SIZE)
 	. = ALIGN(PAGE_SIZE);
-- 
1.6.3.3


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Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Acked-by: Sam Ravnborg <sam@ravnborg.org>
---
 arch/parisc/kernel/vmlinux.lds.S |   25 -------------------------
 1 files changed, 0 insertions(+), 25 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 3fd66d9..775be27 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -135,31 +135,6 @@ SECTIONS
 	INIT_TEXT_SECTION(16384)
 	INIT_DATA_SECTION(16)
 
-	/* alternate instruction replacement.  This is a mechanism x86 uses
-	 * to detect the CPU type and replace generic instruction sequences
-	 * with CPU specific ones.  We don't currently do this in PA, but
-	 * it seems like a good idea...
-	 */
-	. = ALIGN(4);
-	.altinstructions : {
-		__alt_instructions = .;
-		*(.altinstructions)
-		__alt_instructions_end = .; 
-	} 
-	.altinstr_replacement : {
-		*(.altinstr_replacement)
-	} 
-
-	/* .exit.text is discard at runtime, not link time, to deal with references
-	 *  from .altinstructions and .eh_frame
-	 */
-	.exit.text : {
-		EXIT_TEXT
-	}
-	.exit.data : {
-		EXIT_DATA
-	}

From - Thu Nov 08 21:04:59 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.janitors
Subject: Re: [PATCH] arch/parisc: correct use of SHF_ALLOC
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Cc: Helge Deller <deller@gmx.de>, Kyle McMartin <kyle@mcmartin.ca>,
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	kernel-janitors@vger.kernel.org
To: Julia Lawall <julia@diku.dk>
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Hi Kyle,

I noticed today that this change is not in 2.6.31.1.

Dave

On Tue, 04 Aug 2009, Julia Lawall wrote:

> From: Julia Lawall <julia@diku.dk>
> 
> SHF_ALLOC is suitable for testing against the sh_flags field, not the
> sh_type field.
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>
> 
> ---
>  arch/parisc/kernel/module.c         |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
> index ef5caf2..c904817 100644
> --- a/arch/parisc/kernel/module.c
> +++ b/arch/parisc/kernel/module.c
> @@ -853,7 +853,7 @@ int module_finalize(const Elf_Ehdr *hdr,
>  	 * ourselves */
>  	for (i = 1; i < hdr->e_shnum; i++) {
>  		if(sechdrs[i].sh_type == SHT_SYMTAB
> -		   && (sechdrs[i].sh_type & SHF_ALLOC)) {
> +		   && (sechdrs[i].sh_flags & SHF_ALLOC)) {
>  			int strindex = sechdrs[i].sh_link;
>  			/* FIXME: AWFUL HACK
>  			 * The cast is to drop the const from
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:04:59 2018
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Subject: Re: [PATCH v2 0/2] Linker script cleanup patches for parisc
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On 09/18/2009 10:34 PM, Tim Abbott wrote:
> This is an updated version of the patch series I sent on September 6
> cleaning up the parisc architecture's linker scripts.  [....]
> 	-Tim Abbott
>
> Tim Abbott (2):
>    parisc: Clean up linker script using new linker script macros.
>    parisc: Remove useless altinstructions code copied from x86.
>
>   arch/parisc/kernel/vmlinux.lds.S |  104 ++------------------------------------
>   1 files changed, 4 insertions(+), 100 deletions(-)
  
Tim, thanks for your work!

Sadly it broke the parisc build in two places:
a) THREAD_SIZE can't be used in the vmlinux.lds.S file
b) It generates linker errors like "local symbol 0: discarded in section `.exit.text' from kernel/built-in.o".

Attached patch below fixes both issues. Tested with 32- and 64-bit parisc kernel.

Helge

--------
parisc: Fix linker script breakage.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index 699cf8e..7e76f03 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -287,6 +287,8 @@ int main(void)
  	DEFINE(ASM_PFN_PTE_SHIFT, PFN_PTE_SHIFT);
  	DEFINE(ASM_PT_INITIAL, PT_INITIAL);
  	BLANK();
+	DEFINE(ASM_THREAD_SIZE, THREAD_SIZE);
+	BLANK();
  	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
  	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
  	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 775be27..8347dfc 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -89,7 +89,7 @@ SECTIONS
  	}
  
  	/* Data */
-	RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
+	RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, ASM_THREAD_SIZE)
  
  	/* PA-RISC locks requires 16-byte alignment */
  	. = ALIGN(16);
@@ -135,6 +135,16 @@ SECTIONS
  	INIT_TEXT_SECTION(16384)
  	INIT_DATA_SECTION(16)
  
+	/* we have to discard exit text and such at runtime, not link time */
+	.exit.text :
+	{
+		EXIT_TEXT
+	}
+	.exit.data :
+	{
+		EXIT_DATA
+	}
+
  	PERCPU(PAGE_SIZE)
  	. = ALIGN(PAGE_SIZE);
  	__init_end = .;
--
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Subject: agp: parisc-agp.c - use correct page_mask function
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This commit:

Commit 2a4ceb6d3e6a566cb4a9dc8f974177f031d27cd7
Author: David Woodhouse <David.Woodhouse@intel.com>
Date:   Mon Jul 27 10:27:29 2009 +0100
     agp: Switch mask_memory() method to take address argument again, not page

broke the parisc AGP driver (again). This patch fixes it.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index 60ab751..1c12921 100644
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -217,7 +217,7 @@ static const struct agp_bridge_driver parisc_agp_driver = {
  	.configure		= parisc_agp_configure,
  	.fetch_size		= parisc_agp_fetch_size,
  	.tlb_flush		= parisc_agp_tlbflush,
-	.mask_memory		= parisc_agp_page_mask_memory,
+	.mask_memory		= parisc_agp_mask_memory,
  	.masks			= parisc_agp_masks,
  	.agp_enable		= parisc_agp_enable,
  	.cache_flush		= global_cache_flush,
--
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Cc: linux-parisc@vger.kernel.org, Kyle McMartin <kyle@mcmartin.ca>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
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To: Helge Deller <deller@gmx.de>
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On Sun, 27 Sep 2009, Helge Deller wrote:

>  Tim, thanks for your work!
> 
> Sadly it broke the parisc build in two places:
> a) THREAD_SIZE can't be used in the vmlinux.lds.S file
> b) It generates linker errors like "local symbol 0: discarded in section
> `.exit.text' from kernel/built-in.o".

Sorry about that -- I should have tried harder to get someone to test this 
one, since parisc is one of the architectures for which I don't have a 
cross-compiler.

> Attached patch below fixes both issues. Tested with 32- and 64-bit parisc
> kernel.

The .exit.text change looks fine.

[...]
> b/arch/parisc/kernel/asm-offsets.c
> index 699cf8e..7e76f03 100644
> --- a/arch/parisc/kernel/asm-offsets.c
> +++ b/arch/parisc/kernel/asm-offsets.c
> @@ -287,6 +287,8 @@ int main(void)
>  	DEFINE(ASM_PFN_PTE_SHIFT, PFN_PTE_SHIFT);
>  	DEFINE(ASM_PT_INITIAL, PT_INITIAL);
>  	BLANK();
> +	DEFINE(ASM_THREAD_SIZE, THREAD_SIZE);
> +	BLANK();
>  	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
>  	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
>  	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));

Rather than adding a new definition in asm-offsets.c, I think it'll be 
better to do something like the following to make the normal THREAD_SIZE 
definition available in the linker script and other assembly files:

	-Tim Abbott

parisc: Make THREAD_SIZE available to assembly files and linker scripts.

Signed-off-by: Tim Abbott <tabbott@ksplice.com>
---
 arch/parisc/include/asm/thread_info.h |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index ac775a7..51bca20 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -32,6 +32,11 @@ struct thread_info {
 #define init_thread_info        (init_thread_union.thread_info)
 #define init_stack              (init_thread_union.stack)
 
+/* how to get the thread information struct from C */
+#define current_thread_info()	((struct thread_info *)mfctl(30))
+
+#endif /* !__ASSEMBLY */
+
 /* thread information allocation */
 
 #define THREAD_SIZE_ORDER            2
@@ -40,11 +45,6 @@ struct thread_info {
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_SIZE_ORDER)
 #define THREAD_SHIFT            (PAGE_SHIFT + THREAD_SIZE_ORDER)
 
-/* how to get the thread information struct from C */
-#define current_thread_info()	((struct thread_info *)mfctl(30))
-
-#endif /* !__ASSEMBLY */

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: rename parisc's vmalloc_start to parisc_vmalloc_start
Date: Sun, 27 Sep 2009 23:30:39 +0200
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building kernel 2.6.32(pre), gives this compiler warning:
/linus-linux-2.6/mm/vmalloc.c: In function 'pcpu_get_vm_areas':
/linus-linux-2.6/mm/vmalloc.c:2104: warning: 'vmalloc_start' is used uninitialized in this function

The reason is, that the code in mm/vmalloc defines a local variable called
vmalloc_start, which is already defined as global variable in parisc's code.

To avoid this kind of problems in future, I suggest to rename the parisc variable
to parisc_vmalloc_start.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/fixmap.h b/arch/parisc/include/asm/fixmap.h
index de3fe3a..6fec4d4 100644
--- a/arch/parisc/include/asm/fixmap.h
+++ b/arch/parisc/include/asm/fixmap.h
@@ -21,9 +21,9 @@
  #define KERNEL_MAP_END		(TMPALIAS_MAP_START)
  
  #ifndef __ASSEMBLY__
-extern void *vmalloc_start;
+extern void *parisc_vmalloc_start;
  #define PCXL_DMA_MAP_SIZE	(8*1024*1024)
-#define VMALLOC_START		((unsigned long)vmalloc_start)
+#define VMALLOC_START		((unsigned long)parisc_vmalloc_start)
  #define VMALLOC_END		(KERNEL_MAP_END)
  #endif /*__ASSEMBLY__*/
  
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index d5aca31..13b6e3e 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -434,8 +434,8 @@ void mark_rodata_ro(void)
  #define SET_MAP_OFFSET(x) ((void *)(((unsigned long)(x) + VM_MAP_OFFSET) \
  				     & ~(VM_MAP_OFFSET-1)))
  
-void *vmalloc_start __read_mostly;
-EXPORT_SYMBOL(vmalloc_start);
+void *parisc_vmalloc_start __read_mostly;
+EXPORT_SYMBOL(parisc_vmalloc_start);
  
  #ifdef CONFIG_PA11
  unsigned long pcxl_dma_start __read_mostly;
@@ -496,13 +496,14 @@ void __init mem_init(void)
  #ifdef CONFIG_PA11
  	if (hppa_dma_ops == &pcxl_dma_ops) {
  		pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
-		vmalloc_start = SET_MAP_OFFSET(pcxl_dma_start + PCXL_DMA_MAP_SIZE);
+		parisc_vmalloc_start = SET_MAP_OFFSET(pcxl_dma_start
+						+ PCXL_DMA_MAP_SIZE);
  	} else {
  		pcxl_dma_start = 0;
-		vmalloc_start = SET_MAP_OFFSET(MAP_START);
+		parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
  	}
  #else
-	vmalloc_start = SET_MAP_OFFSET(MAP_START);
+	parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
  #endif
  
  	printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n",
--
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH v2 0/2] Linker script cleanup patches for parisc
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On 09/27/2009 11:25 PM, Tim Abbott wrote:
> On Sun, 27 Sep 2009, Helge Deller wrote:
>
>>   Tim, thanks for your work!
>>
>> Sadly it broke the parisc build in two places:
>> a) THREAD_SIZE can't be used in the vmlinux.lds.S file
>> b) It generates linker errors like "local symbol 0: discarded in section
>> `.exit.text' from kernel/built-in.o".
>
> Sorry about that -- I should have tried harder to get someone to test this
> one, since parisc is one of the architectures for which I don't have a
> cross-compiler.

No problem. It was on my todo-list to test your patch, but then it
already got merged :-)

>> Attached patch below fixes both issues. Tested with 32- and 64-bit parisc
>> kernel.
>
> The .exit.text change looks fine.

Good.

> [...]
> Rather than adding a new definition in asm-offsets.c, I think it'll be
> better to do something like the following to make the normal THREAD_SIZE
> definition available in the linker script and other assembly files:
>
> 	-Tim Abbott
>
> parisc: Make THREAD_SIZE available to assembly files and linker scripts.
>
> Signed-off-by: Tim Abbott<tabbott@ksplice.com>

Yes, much better.
Acked-by: Helge Deller <deller@gmx.de>

But with this change, the vmlinux.lds.S file needs to include
the <asm/thread_info.h> file as well. I've added the adjusted patch
to vmlinux.lds.S below.

> ---
>   arch/parisc/include/asm/thread_info.h |   10 +++++-----
>   1 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
> index ac775a7..51bca20 100644
> --- a/arch/parisc/include/asm/thread_info.h
> +++ b/arch/parisc/include/asm/thread_info.h
> @@ -32,6 +32,11 @@ struct thread_info {
>   #define init_thread_info        (init_thread_union.thread_info)
>   #define init_stack              (init_thread_union.stack)
>
> +/* how to get the thread information struct from C */
> +#define current_thread_info()	((struct thread_info *)mfctl(30))
> +
> +#endif /* !__ASSEMBLY */
> +
>   /* thread information allocation */
>
>   #define THREAD_SIZE_ORDER            2
> @@ -40,11 +45,6 @@ struct thread_info {
>   #define THREAD_SIZE             (PAGE_SIZE<<  THREAD_SIZE_ORDER)
>   #define THREAD_SHIFT            (PAGE_SHIFT + THREAD_SIZE_ORDER)
>
> -/* how to get the thread information struct from C */
> -#define current_thread_info()	((struct thread_info *)mfctl(30))
> -
> -#endif /* !__ASSEMBLY */
> -
>   #define PREEMPT_ACTIVE_BIT	28
>   #define PREEMPT_ACTIVE		(1<<  PREEMPT_ACTIVE_BIT)
>

Adjusted patch to vmlinux.lds.S:

parisc: Fix linker script breakage.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 775be27..7fc2c3d 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -28,6 +28,7 @@
  #include <asm/cache.h>
  #include <asm/page.h>
  #include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
  	
  /* ld script to make hppa Linux kernel */
  #ifndef CONFIG_64BIT
@@ -135,6 +136,16 @@ SECTIONS
  	INIT_TEXT_SECTION(16384)
  	INIT_DATA_SECTION(16)
  
+	/* we have to discard exit text and such at runtime, not link time */
+	.exit.text :
+	{
+		EXIT_TEXT
+	}
+	.exit.data :
+	{
+		EXIT_DATA
+	}
+
  	PERCPU(PAGE_SIZE)
  	. = ALIGN(PAGE_SIZE);
  	__init_end = .;
--
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On Thu, Sep 10, 2009 at 04:56:47PM -0700, David Daney wrote:
> Use the new unreachable() macro instead of for(;;);
> 
> Signed-off-by: David Daney <ddaney@caviumnetworks.com>
> CC: Kyle McMartin <kyle@mcmartin.ca>
> CC: Helge Deller <deller@gmx.de>
> CC: linux-parisc@vger.kernel.org

Since the dependent part of this patch seems to have missed the merge
window, I guess we'll sit on this until next round?

--Kyle

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Subject: Re: agp: parisc-agp.c - use correct page_mask function
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Cc: David Woodhouse <David.Woodhouse@intel.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
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	David Airlie <airlied@linux.ie>
To: Helge Deller <deller@gmx.de>
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On Sun, Sep 27, 2009 at 11:13:04PM +0200, Helge Deller wrote:
> This commit:
>
> Commit 2a4ceb6d3e6a566cb4a9dc8f974177f031d27cd7
> Author: David Woodhouse <David.Woodhouse@intel.com>
> Date:   Mon Jul 27 10:27:29 2009 +0100
>     agp: Switch mask_memory() method to take address argument again, not page
>
> broke the parisc AGP driver (again). This patch fixes it.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
>

Acked-by: Kyle McMartin <kyle@mcmartin.ca>

airlied, please apply.

Thanks, Kyle
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Subject: Re: [PATCH] parisc: rename parisc's vmalloc_start to
	parisc_vmalloc_start
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On Sun, Sep 27, 2009 at 11:30:39PM +0200, Helge Deller wrote:
> building kernel 2.6.32(pre), gives this compiler warning:
> /linus-linux-2.6/mm/vmalloc.c: In function 'pcpu_get_vm_areas':
> /linus-linux-2.6/mm/vmalloc.c:2104: warning: 'vmalloc_start' is used uninitialized in this function
>
> The reason is, that the code in mm/vmalloc defines a local variable called
> vmalloc_start, which is already defined as global variable in parisc's code.
>
> To avoid this kind of problems in future, I suggest to rename the parisc variable
> to parisc_vmalloc_start.
>
> Signed-off-by: Helge Deller <deller@gmx.de>

applied.
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On Sun, Sep 27, 2009 at 02:21:50PM -0400, John David Anglin wrote:
> Hi Kyle,
> 
> I noticed today that this change is not in 2.6.31.1.
> 

Dunno what happened... I must have updated patchwork and missed it in a
rebase locally.

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Rebased ref, commits from common ancestor:
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Rebased ref, commits from common ancestor:
commit 8cf06fc9bd660c28afea4115fd91a2cc4978eb54
Author: Helge Deller <deller@gmx.de>
Date:   Mon Sep 28 00:39:47 2009 +0200

    parisc: Fix linker script breakage.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 9609bfec6d869bc0d82ccfb909d5e72b7002d813
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Aug 4 14:54:41 2009 +0200

    parisc: convert to asm-generic/hardirq.h
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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Rebased ref, commits from common ancestor:
commit 8cf06fc9bd660c28afea4115fd91a2cc4978eb54
Author: Helge Deller <deller@gmx.de>
Date:   Mon Sep 28 00:39:47 2009 +0200

    parisc: Fix linker script breakage.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 9609bfec6d869bc0d82ccfb909d5e72b7002d813
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Aug 4 14:54:41 2009 +0200

    parisc: convert to asm-generic/hardirq.h
    
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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Rebased on top of v2.6.32-rc1, fixed tracehook. Seems to build alright
on my pa8800 in a few different configs. Is anything missing?

regards, Kyle

The following changes since commit 17d857be649a21ca90008c6dc425d849fa83db5c:
  Linus Torvalds (1):
        Linux 2.6.32-rc1

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git parisc

Christoph Hellwig (1):
      parisc: convert to asm-generic/hardirq.h

Helge Deller (2):
      parisc: rename parisc's vmalloc_start to parisc_vmalloc_start
      parisc: Fix linker script breakage.

James Bottomley (1):
      parisc: add me to Maintainers

Jaswinder Singh Rajput (1):
      parisc: includecheck fix: signal.c

Julia Lawall (1):
      parisc: correct use of SHF_ALLOC

Kyle McMartin (7):
      parisc: tracehook_report_syscall
      parisc: tracehook_signal_handler
      parisc: add missing TI_TASK macro in syscall.S
      parisc: split syscall_trace into two halves
      parisc: stop using task->ptrace for {single,block}step flags
      parisc: add skeleton syscall.h
      parisc: HAVE_ARCH_TRACEHOOK

Tim Abbott (1):
      parisc: Make THREAD_SIZE available to assembly files and linker scripts.

 MAINTAINERS                           |    1 +
 arch/parisc/Kconfig                   |    1 +
 arch/parisc/include/asm/fixmap.h      |    4 +-
 arch/parisc/include/asm/hardirq.h     |   20 +---------------
 arch/parisc/include/asm/ptrace.h      |    5 +++-
 arch/parisc/include/asm/syscall.h     |   40 +++++++++++++++++++++++++++++++
 arch/parisc/include/asm/thread_info.h |   14 +++++++----
 arch/parisc/kernel/asm-offsets.c      |    4 +-
 arch/parisc/kernel/entry.S            |   21 ++++++++--------
 arch/parisc/kernel/irq.c              |    5 ----
 arch/parisc/kernel/module.c           |    2 +-
 arch/parisc/kernel/ptrace.c           |   42 ++++++++++++++++----------------
 arch/parisc/kernel/signal.c           |    5 +++-
 arch/parisc/kernel/syscall.S          |   22 +++++++++++------
 arch/parisc/kernel/vmlinux.lds.S      |   10 ++++++++
 arch/parisc/mm/init.c                 |   11 ++++----
 16 files changed, 127 insertions(+), 80 deletions(-)
 create mode 100644 arch/parisc/include/asm/syscall.h
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From - Thu Nov 08 21:05:00 2018
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On 09/28/2009 06:25 PM, Kyle McMartin wrote:
> Rebased on top of v2.6.32-rc1, fixed tracehook. Seems to build alright
> on my pa8800 in a few different configs. Is anything missing?


I did tested it on my boxes as well, and it seems OK.
Nothing important missing.
Thanks Kyle!

Helge

> regards, Kyle
>
> The following changes since commit 17d857be649a21ca90008c6dc425d849fa83db5c:
>    Linus Torvalds (1):
>          Linux 2.6.32-rc1
>
> are available in the git repository at:
>
>    git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git parisc
>
> Christoph Hellwig (1):
>        parisc: convert to asm-generic/hardirq.h
>
> Helge Deller (2):
>        parisc: rename parisc's vmalloc_start to parisc_vmalloc_start
>        parisc: Fix linker script breakage.
>
> James Bottomley (1):
>        parisc: add me to Maintainers
>
> Jaswinder Singh Rajput (1):
>        parisc: includecheck fix: signal.c
>
> Julia Lawall (1):
>        parisc: correct use of SHF_ALLOC
>
> Kyle McMartin (7):
>        parisc: tracehook_report_syscall
>        parisc: tracehook_signal_handler
>        parisc: add missing TI_TASK macro in syscall.S
>        parisc: split syscall_trace into two halves
>        parisc: stop using task->ptrace for {single,block}step flags
>        parisc: add skeleton syscall.h
>        parisc: HAVE_ARCH_TRACEHOOK
>
> Tim Abbott (1):
>        parisc: Make THREAD_SIZE available to assembly files and linker scripts.
>
>   MAINTAINERS                           |    1 +
>   arch/parisc/Kconfig                   |    1 +
>   arch/parisc/include/asm/fixmap.h      |    4 +-
>   arch/parisc/include/asm/hardirq.h     |   20 +---------------
>   arch/parisc/include/asm/ptrace.h      |    5 +++-
>   arch/parisc/include/asm/syscall.h     |   40 +++++++++++++++++++++++++++++++
>   arch/parisc/include/asm/thread_info.h |   14 +++++++----
>   arch/parisc/kernel/asm-offsets.c      |    4 +-
>   arch/parisc/kernel/entry.S            |   21 ++++++++--------
>   arch/parisc/kernel/irq.c              |    5 ----
>   arch/parisc/kernel/module.c           |    2 +-
>   arch/parisc/kernel/ptrace.c           |   42 ++++++++++++++++----------------
>   arch/parisc/kernel/signal.c           |    5 +++-
>   arch/parisc/kernel/syscall.S          |   22 +++++++++++------
>   arch/parisc/kernel/vmlinux.lds.S      |   10 ++++++++
>   arch/parisc/mm/init.c                 |   11 ++++----
>   16 files changed, 127 insertions(+), 80 deletions(-)
>   create mode 100644 arch/parisc/include/asm/syscall.h
>


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v2.6.32-rc1-134-g84d88d5 fails to compile on my hppa box:
[...]
  LD      vmlinux.o
  MODPOST vmlinux.o
  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
arch/parisc/kernel/vmlinux.lds:319: undefined symbol `THREAD_SIZE' 
referenced in expression
make[5]: *** [.tmp_vmlinux1] Error 1

Failure above was with default config, but I've also seen it with my own 
config.

System is running Debian unstable.

Cheers,
FJP
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On Wed, Sep 30, 2009 at 9:39 PM, Frans Pop <elendil@planet.nl> wrote:
> arch/parisc/kernel/vmlinux.lds:319: undefined symbol `THREAD_SIZE'
> referenced in expression
> make[5]: *** [.tmp_vmlinux1] Error 1

Fixed upstream?

http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commitdiff;h=f32ed3954c5e365907738b1206e849b6bbe9bcef

Cheers,
Carlos.
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From: Frans Pop <elendil@planet.nl>
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Subject: Re: vmlinux.lds:319: undefined symbol `THREAD_SIZE'
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On Thursday 01 October 2009, Frans Pop wrote:
> v2.6.32-rc1-134-g84d88d5 fails to compile on my hppa box:
> [...]
>   LD      vmlinux.o
>   MODPOST vmlinux.o
>   GEN     .version
>   CHK     include/linux/compile.h
>   UPD     include/linux/compile.h
>   CC      init/version.o
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
> arch/parisc/kernel/vmlinux.lds:319: undefined symbol `THREAD_SIZE'
> referenced in expression
> make[5]: *** [.tmp_vmlinux1] Error 1
>
> Failure above was with default config, but I've also seen it with my own
> config.

Sorry, it was not a default config after all, so attached the config I 
used.


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	filename="config"

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.32-rc1
# Thu Oct  1 03:45:23 2009
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_TIME_LOW_RES=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_IRQ_PER_CPU=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
# CONFIG_TASKSTATS is not set
CONFIG_AUDIT=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_TREE_PREEMPT_RCU is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=64
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_IKCONFIG=y
# CONFIG_IKCONFIG_PROC is not set
CONFIG_LOG_BUF_SHIFT=15
# CONFIG_GROUP_SCHED is not set
# CONFIG_CGROUPS is not set
# CONFIG_SYSFS_DEPRECATED_V2 is not set
# CONFIG_RELAY is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# CONFIG_PERF_COUNTERS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
CONFIG_HAVE_OPROFILE=y
CONFIG_USE_GENERIC_SMP_HELPERS=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_SLOW_WORK is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_HAVE_MLOCK=y
CONFIG_HAVE_MLOCKED_PAGE_BIT=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_COMPAT=y
CONFIG_NR_CPUS=8

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
CONFIG_ISA=y
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_PCI_LEGACY=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=m
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
# CONFIG_DEFAULT_BIC is not set
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_HTCP is not set
# CONFIG_DEFAULT_VEGAS is not set
# CONFIG_DEFAULT_WESTWOOD is not set
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=m
CONFIG_IPV6_PRIVACY=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETLABEL is not set
CONFIG_NETWORK_SECMARK=y
# CONFIG_NETFILTER is not set
CONFIG_IP_DCCP=m
CONFIG_INET_DCCP_DIAG=m

#
# DCCP CCIDs Configuration (EXPERIMENTAL)
#
# CONFIG_IP_DCCP_CCID2_DEBUG is not set
CONFIG_IP_DCCP_CCID3=y
# CONFIG_IP_DCCP_CCID3_DEBUG is not set
CONFIG_IP_DCCP_CCID3_RTO=100
CONFIG_IP_DCCP_TFRC_LIB=y

#
# DCCP Kernel Hacking
#
# CONFIG_IP_DCCP_DEBUG is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_MSG is not set
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_HMAC_NONE is not set
# CONFIG_SCTP_HMAC_SHA1 is not set
CONFIG_SCTP_HMAC_MD5=y
# CONFIG_RDS is not set
CONFIG_TIPC=m
CONFIG_TIPC_ADVANCED=y
CONFIG_TIPC_ZONES=3
CONFIG_TIPC_CLUSTERS=1
CONFIG_TIPC_NODES=255
CONFIG_TIPC_SLAVE_NODES=0
CONFIG_TIPC_PORTS=8191
CONFIG_TIPC_LOG=0
# CONFIG_TIPC_DEBUG is not set
# CONFIG_ATM is not set
CONFIG_STP=m
CONFIG_BRIDGE=m
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
# CONFIG_VLAN_8021Q_GVRP is not set
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
# CONFIG_NET_SCH_MULTIQ is not set
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
# CONFIG_NET_SCH_DRR is not set
CONFIG_NET_SCH_INGRESS=m

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_ROUTE=y
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
# CONFIG_NET_CLS_FLOW is not set
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
# CONFIG_NET_ACT_SKBEDIT is not set
CONFIG_NET_CLS_IND=y
CONFIG_NET_SCH_FIFO=y
# CONFIG_DCB is not set

#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_DEVTMPFS is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=m
# CONFIG_MTD is not set
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_SERIAL=m
CONFIG_PARPORT_PC_FIFO=y
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_GSC=m
CONFIG_PARPORT_AX88796=m
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
# CONFIG_PNP is not set
CONFIG_BLK_DEV=y
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=8192
# CONFIG_BLK_DEV_XIP is not set
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
CONFIG_ATA_OVER_ETH=m
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
CONFIG_SGI_IOC4=m
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=m

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_IDE_GD=m
CONFIG_IDE_GD_ATA=y
# CONFIG_IDE_GD_ATAPI is not set
CONFIG_BLK_DEV_IDECD=m
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8172 is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=m
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=m
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=m
CONFIG_SCSI_NETLINK=y
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
# CONFIG_SCSI_FC_TGT_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_HOST_SMP=y
# CONFIG_SCSI_SAS_LIBSAS_DEBUG is not set
CONFIG_SCSI_SRP_ATTRS=m
# CONFIG_SCSI_SRP_TGT_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
CONFIG_SCSI_AIC94XX=m
# CONFIG_AIC94XX_DEBUG is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_LASI700 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_ZALON is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
CONFIG_SCSI_SRP=m
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
# CONFIG_ATA is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
# CONFIG_MULTICORE_RAID456 is not set
CONFIG_MD_RAID6_PQ=m
# CONFIG_ASYNC_RAID6_TEST is not set
CONFIG_MD_MULTIPATH=m
CONFIG_MD_FAULTY=m
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
# CONFIG_DM_LOG_USERSPACE is not set
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
# CONFIG_DM_MULTIPATH_QL is not set
# CONFIG_DM_MULTIPATH_ST is not set
CONFIG_DM_DELAY=m
# CONFIG_DM_UEVENT is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#

#
# You can enable one or both FireWire driver stacks.
#

#
# See the help texts for more information.
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
CONFIG_IFB=m
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
# CONFIG_LASI_82596 is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_DNET is not set
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=m
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
CONFIG_TULIP_NAPI=y
CONFIG_TULIP_NAPI_HW_MITIGATION=y
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
# CONFIG_NET_PCI is not set
# CONFIG_B44 is not set
# CONFIG_CS89x0 is not set
# CONFIG_KS8842 is not set
# CONFIG_NET_POCKET is not set
# CONFIG_ATL2 is not set
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_PLIP=m
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
# CONFIG_PPPOL2TP is not set
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLHC=m
CONFIG_SLIP_SMART=y
# CONFIG_SLIP_MODE_SLIP6 is not set
# CONFIG_NET_FC is not set
CONFIG_NETCONSOLE=m
# CONFIG_NETCONSOLE_DYNAMIC is not set
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_ATI_REMOTE is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_UINPUT is not set
CONFIG_HP_SDC_RTC=m

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=m
# CONFIG_SERIO_PARKBD is not set
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=m
# CONFIG_HIL_MLC is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_RAW=m
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_DEVKMEM=y
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=16
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_FOURPORT=m
CONFIG_SERIAL_8250_ACCENT=m
CONFIG_SERIAL_8250_BOCA=m
# CONFIG_SERIAL_8250_EXAR_ST16C554 is not set
CONFIG_SERIAL_8250_HUB6=m
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_MUX=y
CONFIG_SERIAL_MUX_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
# CONFIG_SPI is not set

#
# PPS support
#
# CONFIG_PPS is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_PC87360 is not set
CONFIG_SENSORS_PC87427=m
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_VIA686A is not set
CONFIG_SENSORS_VT1211=m
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
# CONFIG_SSB_B43_PCI_BRIDGE is not set
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=m
CONFIG_BACKLIGHT_GENERIC=m

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_SOUND is not set
# CONFIG_HID_SUPPORT is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=m
CONFIG_USB_DEBUG=y
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
# CONFIG_USB_DEVICEFS is not set
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
CONFIG_USB_MON=m
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_HCD_SSB is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_WHCI_HCD is not set
# CONFIG_USB_HWA_HCD is not set

#
# Enable Host or Gadget support to see Inventra options
#

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_BERRY_CHARGE is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_VST is not set
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
CONFIG_RTC_DRV_DS1553=m
CONFIG_RTC_DRV_DS1742=m
# CONFIG_RTC_DRV_STK17TA8 is not set
CONFIG_RTC_DRV_M48T86=m
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
CONFIG_RTC_DRV_V3020=m

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set

#
# TI VLYNQ
#
# CONFIG_STAGING is not set

#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=m
CONFIG_EXT3_DEFAULTS_TO_ORDERED=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
# CONFIG_EXT4_FS is not set
CONFIG_JBD=m
# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_QUOTA=y
# CONFIG_QUOTA_NETLINK_INTERFACE is not set
CONFIG_PRINT_QUOTA_WARNING=y
CONFIG_QUOTA_TREE=m
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
# CONFIG_CUSE is not set
CONFIG_GENERIC_ACL=y

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=m
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
CONFIG_ECRYPT_FS=m
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_CRAMFS=y
# CONFIG_SQUASHFS is not set
CONFIG_VXFS_FS=m
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
CONFIG_ROMFS_FS=m
CONFIG_ROMFS_BACKED_BY_BLOCK=y
# CONFIG_ROMFS_BACKED_BY_MTD is not set
# CONFIG_ROMFS_BACKED_BY_BOTH is not set
CONFIG_ROMFS_ON_BLOCK=y
CONFIG_SYSV_FS=y
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
# CONFIG_NFS_V4_1 is not set
# CONFIG_NFSD is not set
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_RPCSEC_GSS_SPKM3 is not set
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=m
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=m
CONFIG_DLM=m
CONFIG_DLM_DEBUG=y

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_DETECT_SOFTLOCKUP is not set
# CONFIG_DETECT_HUNG_TASK is not set
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
# CONFIG_SYSCTL_SYSCALL_CHECK is not set
# CONFIG_PAGE_POISONING is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_RODATA is not set

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
CONFIG_SECURITY=y
# CONFIG_SECURITYFS is not set
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
# CONFIG_SECURITY_PATH is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
CONFIG_LSM_MMAP_MIN_ADDR=65536
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=0
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
# CONFIG_SECURITY_TOMOYO is not set
CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_ASYNC_PQ=m
CONFIG_ASYNC_RAID6_RECOV=m
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
# CONFIG_CRYPTO_GHASH is not set
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_HIFN_795X is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_LAST_BIT=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
# CONFIG_CRC_T10DIF is not set
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
CONFIG_AUDIT_GENERIC=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y

--Boundary-00=_TLBxKC7epDmAvSf--
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From - Thu Nov 08 21:05:00 2018
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From: Frans Pop <elendil@planet.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: vmlinux.lds:319: undefined symbol `THREAD_SIZE'
Date: Thu, 1 Oct 2009 05:35:38 +0200
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To: "Carlos O'Donell" <carlos@systemhalted.org>
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On Thursday 01 October 2009, Carlos O'Donell wrote:
> On Wed, Sep 30, 2009 at 9:39 PM, Frans Pop <elendil@planet.nl> wrote:
> > arch/parisc/kernel/vmlinux.lds:319: undefined symbol `THREAD_SIZE'
> > referenced in expression
> > make[5]: *** [.tmp_vmlinux1] Error 1
>
> Fixed upstream?
>
> http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commitdi
>ff;h=f32ed3954c5e365907738b1206e849b6bbe9bcef

Nope. With that patch applied I still get the error, even for an
'allnoconfig" build.
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From - Thu Nov 08 21:05:01 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: vmlinux.lds:319: undefined symbol `THREAD_SIZE'
Date: Thu, 1 Oct 2009 12:32:44 -0400
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	linux-parisc@vger.kernel.org
To: Frans Pop <elendil@planet.nl>
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On Thu, Oct 01, 2009 at 05:35:38AM +0200, Frans Pop wrote:
> On Thursday 01 October 2009, Carlos O'Donell wrote:
> > On Wed, Sep 30, 2009 at 9:39 PM, Frans Pop <elendil@planet.nl> wrote:
> > > arch/parisc/kernel/vmlinux.lds:319: undefined symbol `THREAD_SIZE'
> > > referenced in expression
> > > make[5]: *** [.tmp_vmlinux1] Error 1
> >
> > Fixed upstream?
> >
> > http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commitdi
> >ff;h=f32ed3954c5e365907738b1206e849b6bbe9bcef
> 
> Nope. With that patch applied I still get the error, even for an
> 'allnoconfig" build.

You need this one too:
http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commitdiff;h=8cf06fc9bd660c28afea4115fd91a2cc4978eb54
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From - Thu Nov 08 21:05:01 2018
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From: Frans Pop <elendil@planet.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: vmlinux.lds:319: undefined symbol `THREAD_SIZE'
Date: Fri, 2 Oct 2009 02:25:28 +0200
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On Thursday 01 October 2009, Kyle McMartin wrote:
> On Thu, Oct 01, 2009 at 05:35:38AM +0200, Frans Pop wrote:
> > On Thursday 01 October 2009, Carlos O'Donell wrote:
> > > On Wed, Sep 30, 2009 at 9:39 PM, Frans Pop <elendil@planet.nl> wrote:
> > > > arch/parisc/kernel/vmlinux.lds:319: undefined symbol `THREAD_SIZE'
> > > > referenced in expression
> > > > make[5]: *** [.tmp_vmlinux1] Error 1
> > >
> > > Fixed upstream?
> > >
> > > http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=comm
> > >itdi ff;h=f32ed3954c5e365907738b1206e849b6bbe9bcef
> >
> > Nope. With that patch applied I still get the error, even for an
> > 'allnoconfig" build.
>
> You need this one too:
> http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commitdi
>ff;h=8cf06fc9bd660c28afea4115fd91a2cc4978eb54

Yep, that fixed it.

The resulting kernel boots fine on my box, but there does seem to be a 
regression. With 2.6.31 I not had any problems running aptitude, but with 
this kernel it's segfaulted on me once and frozen twice. Unfortunately 
it's not reliably reproducible,

Thanks,
FJP
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From - Thu Nov 08 21:05:01 2018
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Subject: Build failure?
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Helge, Kyle,

Building 2.6.32-rc2
(git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git)

Results in:

drivers/char/agp/parisc-agp.c:220: error:
'parisc_agp_page_mask_memory' undeclared here (not in a function)
make[3]: *** [drivers/char/agp/parisc-agp.o] Error 1
make[2]: *** [drivers/char/agp] Error 2
make[1]: *** [drivers/char] Error 2
make: *** [drivers] Error 2

I haven't looked into this yet.

Cheers,
Carlos.
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> drivers/char/agp/parisc-agp.c:220: error:
> 'parisc_agp_page_mask_memory' undeclared here (not in a function)
> make[3]: *** [drivers/char/agp/parisc-agp.o] Error 1
> make[2]: *** [drivers/char/agp] Error 2
> make[1]: *** [drivers/char] Error 2
> make: *** [drivers] Error 2
> 
> I haven't looked into this yet.

I seem to recall there is a patch in Kyle's tree that may fix this.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:01 2018
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On Thu, Oct 01, 2009 at 09:43:46PM -0400, John David Anglin wrote:
> > drivers/char/agp/parisc-agp.c:220: error:
> > 'parisc_agp_page_mask_memory' undeclared here (not in a function)
> > make[3]: *** [drivers/char/agp/parisc-agp.o] Error 1
> > make[2]: *** [drivers/char/agp] Error 2
> > make[1]: *** [drivers/char] Error 2
> > make: *** [drivers] Error 2
> > 
> > I haven't looked into this yet.
> 
> I seem to recall there is a patch in Kyle's tree that may fix this.
> 

Yes, Helge submitted a fix, but it's not in my tree, since it should go
in via the agp tree. Hopefully Airlied will pick it up. You can just
turn off the driver though, since I think I'm the only person on earth
running linux on a box with a Quicksilver ASIC and also using
graphics...

r, Kyle
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From - Thu Nov 08 21:05:01 2018
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On 10/02/2009 03:43 AM, John David Anglin wrote:
>> drivers/char/agp/parisc-agp.c:220: error:
>> 'parisc_agp_page_mask_memory' undeclared here (not in a function)
>> make[3]: *** [drivers/char/agp/parisc-agp.o] Error 1
>> make[2]: *** [drivers/char/agp] Error 2
>> make[1]: *** [drivers/char] Error 2
>> make: *** [drivers] Error 2
>>
>> I haven't looked into this yet.
>
> I seem to recall there is a patch in Kyle's tree that may fix this.

No, it's not in Kyle's tree, but available here:
http://patchwork.kernel.org/patch/50348/

Btw, I've started to collect not-yet-applied patches to various trees here:
http://userweb.kernel.org/~deller/parisc/patches.still-needed/
The AGP-Patch is in the 2.6.32 subtree.

Helge
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New commits:
commit 4ef8774cb45c3cf78c7a2d7a1a42f6aee7eda3b2
Author: Helge Deller <deller@gmx.de>
Date:   Sun Sep 27 21:13:04 2009 +0000

    agp: parisc-agp.c - use correct page_mask function
    
    This commit:
    
    Commit 2a4ceb6d3e6a566cb4a9dc8f974177f031d27cd7
    Author: David Woodhouse <David.Woodhouse@intel.com>
    Date:   Mon Jul 27 10:27:29 2009 +0100
         agp: Switch mask_memory() method to take address argument again, not page
    
    broke the parisc AGP driver (again). This patch fixes it.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Acked-by: Dave Airlie <airlied@redhat.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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New commits:
commit 4ef8774cb45c3cf78c7a2d7a1a42f6aee7eda3b2
Author: Helge Deller <deller@gmx.de>
Date:   Sun Sep 27 21:13:04 2009 +0000

    agp: parisc-agp.c - use correct page_mask function
    
    This commit:
    
    Commit 2a4ceb6d3e6a566cb4a9dc8f974177f031d27cd7
    Author: David Woodhouse <David.Woodhouse@intel.com>
    Date:   Mon Jul 27 10:27:29 2009 +0100
         agp: Switch mask_memory() method to take address argument again, not page
    
    broke the parisc AGP driver (again). This patch fixes it.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Acked-by: Dave Airlie <airlied@redhat.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: 2.6.31.1 + nscd still a bad combo
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To: Thibaut VARENE <T-Bone@parisc-linux.org>
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On Sun, 04 Oct 2009, Thibaut VARENE wrote:

> Hi
> 
> Just FWIW, I'm stress testing 2.6.31.1 + a couple recent patches
> cherry-picked from kyle's tree on my A500 running Debian Sid.
> Running dist-upgrade I had the following random errors:

I tested 2.6.31.1 on my rp3440 (PA8800).  I first tried a SMP
build.  I encountered user space segmentation faults almost immediately.
I then reverted to a UP build.  I tried a couple of times to build
GCC but both failed with segv.

On the otherhand, a UP build of 2.6.30.8 with the attached diff
is stable.  2.6.30.y has been solid on this machine since about
2.6.30.4.  I also haven't had any problems with it on my c3750.

I probably should try a SMP build with 2.6.30.8, but I don't think
the memory management issues are fixed.

I am using Debian GCC 4.4 for the 2.6.30.y builds.

> dpkg: unrecoverable fatal error, aborting:
>  syntax error: unknown group 'root' in statoverride file
> E: Sub-process /usr/bin/dpkg returned an error code (2)

Saw the same, and also had user/group lookup problems with sshd.
I first noticed these errors with 32-bit kernel on c3750.

> Then I remembered I have a pam-ldap setup with nscd enabled, turned
> off nscd and tried again. Everything went fine, save for the process
> being apparently a bit slower than usual (network lookups are probably
> the culprit there).
> 
> What's surprising is that the very same nscd daemon running on
> 2.6.22.19+jda doesn't expose such weird behaviour...

Exactly, so it is almost certainly a kernel problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index ada3e53..7d5ebf1 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -222,13 +222,13 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
 
-#define atomic_add(i,v)	((void)(__atomic_add_return( ((int)(i)),(v))))
-#define atomic_sub(i,v)	((void)(__atomic_add_return(-((int)(i)),(v))))
+#define atomic_add(i,v)	((void)(__atomic_add_return( (i),(v))))
+#define atomic_sub(i,v)	((void)(__atomic_add_return(-(i),(v))))
 #define atomic_inc(v)	((void)(__atomic_add_return(   1,(v))))
 #define atomic_dec(v)	((void)(__atomic_add_return(  -1,(v))))
 
-#define atomic_add_return(i,v)	(__atomic_add_return( ((int)(i)),(v)))
-#define atomic_sub_return(i,v)	(__atomic_add_return(-((int)(i)),(v)))
+#define atomic_add_return(i,v)	(__atomic_add_return( (i),(v)))
+#define atomic_sub_return(i,v)	(__atomic_add_return(-(i),(v)))
 #define atomic_inc_return(v)	(__atomic_add_return(   1,(v)))
 #define atomic_dec_return(v)	(__atomic_add_return(  -1,(v)))
 
diff --git a/arch/parisc/include/asm/dma.h b/arch/parisc/include/asm/dma.h
index 31ad0f0..f7a18f9 100644
--- a/arch/parisc/include/asm/dma.h
+++ b/arch/parisc/include/asm/dma.h
@@ -1,5 +1,4 @@
-/* $Id: dma.h,v 1.2 1999/04/27 00:46:18 deller Exp $
- * linux/include/asm/dma.h: Defines for using and allocating dma channels.
+/* asm/dma.h: Defines for using and allocating dma channels.
  * Written by Hennus Bergman, 1992.
  * High DMA channel support & info by Hannu Savolainen
  * and John Boyd, Nov. 1992.
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index ef26b00..a3c3419 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -807,8 +807,10 @@
 #define __NR_dup3		(__NR_Linux + 312)
 #define __NR_pipe2		(__NR_Linux + 313)
 #define __NR_inotify_init1	(__NR_Linux + 314)
+#define __NR_preadv		(__NR_Linux + 315)
+#define __NR_pwritev		(__NR_Linux + 316)
 
-#define __NR_Linux_syscalls	(__NR_inotify_init1 + 1)
+#define __NR_Linux_syscalls	(__NR_pwritev + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index ae3e70c..e552e54 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -553,7 +553,7 @@
 	 * on most of those machines only handles cache transactions.
 	 */
 	extrd,u,*=	\pte,_PAGE_NO_CACHE_BIT+32,1,%r0
-	depi		1,12,1,\prot
+	depdi		1,12,1,\prot
 
 	/* Drop prot bits and convert to page addr for iitlbt and idtlbt */
 	convert_for_tlb_insert20 \pte
diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index bd1f7f1..bb3195b 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -170,23 +170,27 @@ static void __init pagezero_memconfig(void)
 static int __init 
 pat_query_module(ulong pcell_loc, ulong mod_index)
 {
-	pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
+	pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;
 	unsigned long bytecnt;
 	unsigned long temp;	/* 64-bit scratch value */
 	long status;		/* PDC return value status */
 	struct parisc_device *dev;
 
+	pa_pdc_cell = kmalloc(sizeof (*pa_pdc_cell), GFP_KERNEL);
+	if (!pa_pdc_cell)
+		panic("couldn't allocate memory for PDC_PAT_CELL!");
+
 	/* return cell module (PA or Processor view) */
 	status = pdc_pat_cell_module(&bytecnt, pcell_loc, mod_index,
-				     PA_VIEW, &pa_pdc_cell);
+				     PA_VIEW, pa_pdc_cell);
 
 	if (status != PDC_OK) {
 		/* no more cell modules or error */
 		return status;
 	}
 
-	temp = pa_pdc_cell.cba;
-	dev = alloc_pa_dev(PAT_GET_CBA(temp), &pa_pdc_cell.mod_path);
+	temp = pa_pdc_cell->cba;
+	dev = alloc_pa_dev(PAT_GET_CBA(temp), &(pa_pdc_cell->mod_path));
 	if (!dev) {
 		return PDC_OK;
 	}
@@ -203,8 +207,8 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 
 	/* save generic info returned from the call */
 	/* REVISIT: who is the consumer of this? not sure yet... */
-	dev->mod_info = pa_pdc_cell.mod_info;	/* pass to PAT_GET_ENTITY() */
-	dev->pmod_loc = pa_pdc_cell.mod_location;
+	dev->mod_info = pa_pdc_cell->mod_info;	/* pass to PAT_GET_ENTITY() */
+	dev->pmod_loc = pa_pdc_cell->mod_location;
 
 	register_parisc_device(dev);	/* advertise device */
 
@@ -216,14 +220,14 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 
 	case PAT_ENTITY_PROC:
 		printk(KERN_DEBUG "PAT_ENTITY_PROC: id_eid 0x%lx\n",
-			pa_pdc_cell.mod[0]);
+			pa_pdc_cell->mod[0]);
 		break;
 
 	case PAT_ENTITY_MEM:
 		printk(KERN_DEBUG 
 			"PAT_ENTITY_MEM: amount 0x%lx min_gni_base 0x%lx min_gni_len 0x%lx\n",
-			pa_pdc_cell.mod[0], pa_pdc_cell.mod[1], 
-			pa_pdc_cell.mod[2]);
+			pa_pdc_cell->mod[0], pa_pdc_cell->mod[1], 
+			pa_pdc_cell->mod[2]);
 		break;
 	case PAT_ENTITY_CA:
 		printk(KERN_DEBUG "PAT_ENTITY_CA: %ld\n", pcell_loc);
@@ -243,23 +247,26 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
  print_ranges:
 		pdc_pat_cell_module(&bytecnt, pcell_loc, mod_index,
 				    IO_VIEW, &io_pdc_cell);
-		printk(KERN_DEBUG "ranges %ld\n", pa_pdc_cell.mod[1]);
-		for (i = 0; i < pa_pdc_cell.mod[1]; i++) {
+		printk(KERN_DEBUG "ranges %ld\n", pa_pdc_cell->mod[1]);
+		for (i = 0; i < pa_pdc_cell->mod[1]; i++) {
 			printk(KERN_DEBUG 
 				"  PA_VIEW %ld: 0x%016lx 0x%016lx 0x%016lx\n", 
-				i, pa_pdc_cell.mod[2 + i * 3],	/* type */
-				pa_pdc_cell.mod[3 + i * 3],	/* start */
-				pa_pdc_cell.mod[4 + i * 3]);	/* finish (ie end) */
+				i, pa_pdc_cell->mod[2 + i * 3],	/* type */
+				pa_pdc_cell->mod[3 + i * 3],	/* start */
+				pa_pdc_cell->mod[4 + i * 3]);	/* finish (ie end) */
 			printk(KERN_DEBUG 
 				"  IO_VIEW %ld: 0x%016lx 0x%016lx 0x%016lx\n", 
-				i, io_pdc_cell.mod[2 + i * 3],	/* type */
-				io_pdc_cell.mod[3 + i * 3],	/* start */
-				io_pdc_cell.mod[4 + i * 3]);	/* finish (ie end) */
+				i, io_pdc_cell->mod[2 + i * 3],	/* type */
+				io_pdc_cell->mod[3 + i * 3],	/* start */
+				io_pdc_cell->mod[4 + i * 3]);	/* finish (ie end) */
 		}
 		printk(KERN_DEBUG "\n");
 		break;
 	}
 #endif /* DEBUG_PAT */
+
+	kfree(pa_pdc_cell);
+
 	return PDC_OK;
 }
 
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 4ea4229..5dc6cc1 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -120,7 +120,7 @@ int cpu_check_affinity(unsigned int irq, const struct cpumask *dest)
 	if (CHECK_IRQ_PER_CPU(irq)) {
 		/* Bad linux design decision.  The mask has already
 		 * been set; we must reset it */
-		cpumask_setall(&irq_desc[irq].affinity);
+		cpumask_setall(irq_desc[irq].affinity);
 		return -EINVAL;
 	}
 
@@ -138,11 +138,11 @@ static void cpu_set_affinity_irq(unsigned int irq, const struct cpumask *dest)
 	if (cpu_dest < 0)
 		return;
 
-	cpumask_copy(&irq_desc[irq].affinity, dest);
+	cpumask_copy(irq_desc[irq].affinity, dest);
 }
 #endif
 
-static struct hw_interrupt_type cpu_interrupt_type = {
+static struct irq_chip cpu_interrupt_type = {
 	.typename	= "CPU",
 	.startup	= cpu_startup_irq,
 	.shutdown	= cpu_disable_irq,
@@ -297,7 +297,7 @@ int txn_alloc_irq(unsigned int bits_wide)
 unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 {
 #ifdef CONFIG_SMP
-	cpumask_copy(&irq_desc[irq].affinity, cpumask_of(cpu));
+	cpumask_copy(irq_desc[irq].affinity, cpumask_of(cpu));
 #endif
 
 	return per_cpu(cpu_data, cpu).txn_addr;
@@ -354,7 +354,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	irq = eirr_to_irq(eirr_val);
 
 #ifdef CONFIG_SMP
-	cpumask_copy(&dest, &irq_desc[irq].affinity);
+	cpumask_copy(&dest, irq_desc[irq].affinity);
 	if (CHECK_IRQ_PER_CPU(irq_desc[irq].status) &&
 	    !cpu_isset(smp_processor_id(), dest)) {
 		int cpu = first_cpu(dest);
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index ecd1c50..b57ffdd 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -86,8 +86,12 @@
  * the bottom of the table, which has a maximum signed displacement of
  * 0x3fff; however, since we're only going forward, this becomes
  * 0x1fff, and thus, since each GOT entry is 8 bytes long we can have
- * at most 1023 entries */
-#define MAX_GOTS	1023
+ * at most 1023 entries.
+ * To overcome this 14bit displacement with some kernel modules, we'll
+ * use instead the unusal 16bit displacement method (see reassemble_16a)
+ * which gives us a maximum positive displacement of 0x7fff, and as such 
+ * allows us to allocate up to 4095 GOT entries. */
+#define MAX_GOTS	4095
 
 /* three functions to determine where in the module core
  * or init pieces the location is */
@@ -145,12 +149,40 @@ struct stub_entry {
 /* The reassemble_* functions prepare an immediate value for
    insertion into an opcode. pa-risc uses all sorts of weird bitfields
    in the instruction to hold the value.  */
+static inline int sign_unext (int x, int len)
+{
+	int len_ones;
+
+	len_ones = (1 << len) - 1;
+	return x & len_ones;
+}
+
+static inline int low_sign_unext(int x, int len)
+{
+	int sign, temp;
+
+	sign = (x >> (len-1)) & 1;
+	temp = sign_unext (x, len-1);
+	return (temp << 1) | sign;
+}
+
 static inline int reassemble_14(int as14)
 {
 	return (((as14 & 0x1fff) << 1) |
 		((as14 & 0x2000) >> 13));
 }
 
+static inline int reassemble_16a(int as16)
+{
+	int s, t;
+
+	/* Unusual 16-bit encoding, for wide mode only.  */
+	t = (as16 << 1) & 0xffff;
+	s = (as16 & 0x8000);
+	return (t ^ s ^ (s >> 1)) | (s >> 15);
+}
+
+
 static inline int reassemble_17(int as17)
 {
 	return (((as17 & 0x10000) >> 16) |
@@ -409,6 +441,7 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
 	enum elf_stub_type stub_type, Elf_Addr loc0, unsigned int targetsec)
 {
 	struct stub_entry *stub;
+	int d;
 
 	/* initialize stub_offset to point in front of the section */
 	if (!me->arch.section[targetsec].stub_offset) {
@@ -462,12 +495,19 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
  */
 	switch (stub_type) {
 	case ELF_STUB_GOT:
-		stub->insns[0] = 0x537b0000;	/* ldd 0(%dp),%dp	*/
+		d = get_got(me, value, addend);
+		if (d <= 15) {
+			/* Format 5 */
+			stub->insns[0] = 0x0f6010db; /* ldd 0(%dp),%dp	*/
+			stub->insns[0] |= low_sign_unext(d, 5) << 16;
+		} else {
+			/* Format 3 */
+			stub->insns[0] = 0x537b0000; /* ldd 0(%dp),%dp	*/
+			stub->insns[0] |= reassemble_16a(d);
+		}
 		stub->insns[1] = 0x53610020;	/* ldd 10(%dp),%r1	*/
 		stub->insns[2] = 0xe820d000;	/* bve (%r1)		*/
 		stub->insns[3] = 0x537b0030;	/* ldd 18(%dp),%dp	*/
-
-		stub->insns[0] |= reassemble_14(get_got(me, value, addend) & 0x3fff);
 		break;
 	case ELF_STUB_MILLI:
 		stub->insns[0] = 0x20200000;	/* ldil 0,%r1		*/
@@ -855,7 +895,7 @@ int module_finalize(const Elf_Ehdr *hdr,
 	 * ourselves */
 	for (i = 1; i < hdr->e_shnum; i++) {
 		if(sechdrs[i].sh_type == SHT_SYMTAB
-		   && (sechdrs[i].sh_type & SHF_ALLOC)) {
+		   && (sechdrs[i].sh_flags & SHF_ALLOC)) {
 			int strindex = sechdrs[i].sh_link;
 			/* FIXME: AWFUL HACK
 			 * The cast is to drop the const from
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 6936386..f7064ab 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -1,5 +1,4 @@
-/* $Id: pci.c,v 1.6 2000/01/29 00:12:05 grundler Exp $
- *
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index e09d0f7..c8fb61e 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -1,5 +1,4 @@
-/*    $Id: processor.c,v 1.1 2002/07/20 16:27:06 rhirst Exp $
- *
+/*
  *    Initial setup-routines for HP 9000 based hardware.
  *
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
@@ -121,22 +120,28 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 	if (is_pdc_pat()) {
 		ulong status;
 		unsigned long bytecnt;
-	        pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
+	        pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;
 #undef USE_PAT_CPUID
 #ifdef USE_PAT_CPUID
 		struct pdc_pat_cpu_num cpu_info;
 #endif
 
+		pa_pdc_cell = kmalloc(sizeof (*pa_pdc_cell), GFP_KERNEL);
+		if (!pa_pdc_cell)
+			panic("couldn't allocate memory for PDC_PAT_CELL!");
+
 		status = pdc_pat_cell_module(&bytecnt, dev->pcell_loc,
-			dev->mod_index, PA_VIEW, &pa_pdc_cell);
+			dev->mod_index, PA_VIEW, pa_pdc_cell);
 
 		BUG_ON(PDC_OK != status);
 
 		/* verify it's the same as what do_pat_inventory() found */
-		BUG_ON(dev->mod_info != pa_pdc_cell.mod_info);
-		BUG_ON(dev->pmod_loc != pa_pdc_cell.mod_location);
+		BUG_ON(dev->mod_info != pa_pdc_cell->mod_info);
+		BUG_ON(dev->pmod_loc != pa_pdc_cell->mod_location);
+
+		txn_addr = pa_pdc_cell->mod[0];   /* id_eid for IO sapic */
 
-		txn_addr = pa_pdc_cell.mod[0];   /* id_eid for IO sapic */
+		kfree(pa_pdc_cell);
 
 #ifdef USE_PAT_CPUID
 /* We need contiguous numbers for cpuid. Firmware's notion
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 82131ca..cb71f3d 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -1,5 +1,4 @@
-/*    $Id: setup.c,v 1.8 2000/02/02 04:42:38 prumpf Exp $
- *
+/*
  *    Initial setup-routines for HP 9000 based hardware.
  *
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 0838155..7488cfd 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -179,68 +179,6 @@ asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
 	return ret;
 }
 
-/*** copied from mips64 ***/
-/*
- * Ooo, nasty.  We need here to frob 32-bit unsigned longs to
- * 64-bit unsigned longs.
- */
-
-static inline int
-get_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
-{
-	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
-	if (ufdset) {
-		unsigned long odd;
-
-		if (!access_ok(VERIFY_WRITE, ufdset, n*sizeof(u32)))
-			return -EFAULT;
-
-		odd = n & 1UL;
-		n &= ~1UL;
-		while (n) {
-			unsigned long h, l;
-			__get_user(l, ufdset);
-			__get_user(h, ufdset+1);
-			ufdset += 2;
-			*fdset++ = h << 32 | l;
-			n -= 2;
-		}
-		if (odd)
-			__get_user(*fdset, ufdset);
-	} else {
-		/* Tricky, must clear full unsigned long in the
-		 * kernel fdset at the end, this makes sure that
-		 * actually happens.
-		 */
-		memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
-	}
-	return 0;
-}
-
-static inline void
-set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
-{
-	unsigned long odd;
-	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
-
-	if (!ufdset)
-		return;
-
-	odd = n & 1UL;
-	n &= ~1UL;
-	while (n) {
-		unsigned long h, l;
-		l = *fdset++;
-		h = l >> 32;
-		__put_user(l, ufdset);
-		__put_user(h, ufdset+1);
-		ufdset += 2;
-		n -= 2;
-	}
-	if (odd)
-		__put_user(*fdset, ufdset);
-}
-
 struct msgbuf32 {
     int mtype;
     char mtext[1];
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 03b9a01..6a62961 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -413,6 +413,8 @@
 	ENTRY_SAME(dup3)
 	ENTRY_SAME(pipe2)
 	ENTRY_SAME(inotify_init1)
+	ENTRY_COMP(preadv)
+	ENTRY_COMP(pwritev)
 
 	/* Nothing yet */
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index d4dd056..a79c6f9 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -56,9 +56,9 @@ static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
  */
 irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 {
-	unsigned long now;
+	unsigned long now, now2;
 	unsigned long next_tick;
-	unsigned long cycles_elapsed, ticks_elapsed;
+	unsigned long cycles_elapsed, ticks_elapsed = 1;
 	unsigned long cycles_remainder;
 	unsigned int cpu = smp_processor_id();
 	struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
@@ -71,44 +71,24 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 	/* Initialize next_tick to the expected tick time. */
 	next_tick = cpuinfo->it_value;
 
-	/* Get current interval timer.
-	 * CR16 reads as 64 bits in CPU wide mode.
-	 * CR16 reads as 32 bits in CPU narrow mode.
-	 */
+	/* Get current cycle counter (Control Register 16). */
 	now = mfctl(16);
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 5) < cpt) {
+	if ((cycles_elapsed >> 6) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
 		cycles_remainder = cycles_elapsed;
-		ticks_elapsed = 1;
 		while (cycles_remainder > cpt) {
 			cycles_remainder -= cpt;
 			ticks_elapsed++;
 		}
 	} else {
+		/* TODO: Reduce this to one fdiv op */
 		cycles_remainder = cycles_elapsed % cpt;
-		ticks_elapsed = 1 + cycles_elapsed / cpt;
-	}
-
-	/* Can we differentiate between "early CR16" (aka Scenario 1) and
-	 * "long delay" (aka Scenario 3)? I don't think so.
-	 *
-	 * We expected timer_interrupt to be delivered at least a few hundred
-	 * cycles after the IT fires. But it's arbitrary how much time passes
-	 * before we call it "late". I've picked one second.
-	 */
-	if (unlikely(ticks_elapsed > HZ)) {
-		/* Scenario 3: very long delay?  bad in any case */
-		printk (KERN_CRIT "timer_interrupt(CPU %d): delayed!"
-			" cycles %lX rem %lX "
-			" next/now %lX/%lX\n",
-			cpu,
-			cycles_elapsed, cycles_remainder,
-			next_tick, now );
+		ticks_elapsed += cycles_elapsed / cpt;
 	}
 
 	/* convert from "division remainder" to "remainder of clock tick" */
@@ -122,18 +102,56 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cpuinfo->it_value = next_tick;
 
-	/* Skip one clocktick on purpose if we are likely to miss next_tick.
-	 * We want to avoid the new next_tick being less than CR16.
-	 * If that happened, itimer wouldn't fire until CR16 wrapped.
-	 * We'll catch the tick we missed on the tick after that.
+	/* Program the IT when to deliver the next interrupt.
+	 * Only bottom 32-bits of next_tick are writable in CR16!
 	 */
-	if (!(cycles_remainder >> 13))
-		next_tick += cpt;
-
-	/* Program the IT when to deliver the next interrupt. */
-	/* Only bottom 32-bits of next_tick are written to cr16.  */
 	mtctl(next_tick, 16);
 
+	/* Skip one clocktick on purpose if we missed next_tick.
+	 * The new CR16 must be "later" than current CR16 otherwise
+	 * itimer would not fire until CR16 wrapped - e.g 4 seconds
+	 * later on a 1Ghz processor. We'll account for the missed
+	 * tick on the next timer interrupt.
+	 *
+	 * "next_tick - now" will always give the difference regardless
+	 * if one or the other wrapped. If "now" is "bigger" we'll end up
+	 * with a very large unsigned number.
+	 */
+	now2 = mfctl(16);
+	if (next_tick - now2 > cpt)
+		mtctl(next_tick+cpt, 16);
+
+#if 1
+/*
+ * GGG: DEBUG code for how many cycles programming CR16 used.
+ */
+	if (unlikely(now2 - now > 0x3000)) 	/* 12K cycles */
+		printk (KERN_CRIT "timer_interrupt(CPU %d): SLOW! 0x%lx cycles!"
+			" cyc %lX rem %lX "
+			" next/now %lX/%lX\n",
+			cpu, now2 - now, cycles_elapsed, cycles_remainder,
+			next_tick, now );
+#endif
+
+	/* Can we differentiate between "early CR16" (aka Scenario 1) and
+	 * "long delay" (aka Scenario 3)? I don't think so.
+	 *
+	 * Timer_interrupt will be delivered at least a few hundred cycles
+	 * after the IT fires. But it's arbitrary how much time passes
+	 * before we call it "late". I've picked one second.
+	 *
+	 * It's important NO printk's are between reading CR16 and
+	 * setting up the next value. May introduce huge variance.
+	 */
+	if (unlikely(ticks_elapsed > HZ)) {
+		/* Scenario 3: very long delay?  bad in any case */
+		printk (KERN_CRIT "timer_interrupt(CPU %d): delayed!"
+			" cycles %lX rem %lX "
+			" next/now %lX/%lX\n",
+			cpu,
+			cycles_elapsed, cycles_remainder,
+			next_tick, now );
+	}
 
 	/* Done mucking with unreliable delivery of interrupts.
 	 * Go do system house keeping.
@@ -173,7 +191,7 @@ EXPORT_SYMBOL(profile_pc);
 
 /* clock source code */
 
-static cycle_t read_cr16(void)
+static cycle_t read_cr16(struct clocksource *cs)
 {
 	return get_cycles();
 }
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index c32f5d6..4e64a85 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -533,7 +533,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 	  	/* Kill the user process later */
 	  	regs->iaoq[0] = 0 | 3;
 		regs->iaoq[1] = regs->iaoq[0] + 4;
-	 	regs->iasq[0] = regs->iasq[0] = regs->sr[7];
+	 	regs->iasq[0] = regs->iasq[1] = regs->sr[7];
 		regs->gr[0] &= ~PSW_B;
 		return;
 	}
diff --git a/arch/parisc/lib/checksum.c b/arch/parisc/lib/checksum.c
index 462696d..ae66d31 100644
--- a/arch/parisc/lib/checksum.c
+++ b/arch/parisc/lib/checksum.c
@@ -13,8 +13,6 @@
  *		modify it under the terms of the GNU General Public License
  *		as published by the Free Software Foundation; either version
  *		2 of the License, or (at your option) any later version.
- *
- * $Id: checksum.c,v 1.3 1997/12/01 17:57:34 ralf Exp $
  */
 #include <linux/module.h>
 #include <linux/types.h>
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index bbda909..abf41f4 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -405,7 +405,7 @@ byte_copy:
 
 unaligned_copy:
 	/* possibly we are aligned on a word, but not on a double... */
-	if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
+	if (likely((t1 & (sizeof(unsigned int)-1)) == 0)) {
 		t2 = src & (sizeof(unsigned int) - 1);
 
 		if (unlikely(t2 != 0)) {
diff --git a/arch/parisc/math-emu/decode_exc.c b/arch/parisc/math-emu/decode_exc.c
index 66c8a9f..3ca1c61 100644
--- a/arch/parisc/math-emu/decode_exc.c
+++ b/arch/parisc/math-emu/decode_exc.c
@@ -40,7 +40,7 @@
  * END_DESC
 */
 
-
+#include <linux/kernel.h>
 #include "float.h"
 #include "sgl_float.h"
 #include "dbl_float.h"
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 92c7fa4..d617e79 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -1,5 +1,4 @@
-/* $Id: fault.c,v 1.5 2000/01/26 16:20:29 jsm Exp $
- *
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 4356ceb..b0831d9 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -370,34 +370,22 @@ static void __init setup_bootmem(void)
 
 void free_initmem(void)
 {
-	unsigned long addr, init_begin, init_end;
-
-	printk(KERN_INFO "Freeing unused kernel memory: ");
+	unsigned long addr;
+	unsigned long init_begin = (unsigned long)__init_begin;
+	unsigned long init_end = (unsigned long)__init_end;
 
 #ifdef CONFIG_DEBUG_KERNEL
 	/* Attempt to catch anyone trying to execute code here
 	 * by filling the page with BRK insns.
-	 * 
-	 * If we disable interrupts for all CPUs, then IPI stops working.
-	 * Kinda breaks the global cache flushing.
 	 */
-	local_irq_disable();
-
-	memset(__init_begin, 0x00,
-		(unsigned long)__init_end - (unsigned long)__init_begin);
-
-	flush_data_cache();
-	asm volatile("sync" : : );
-	flush_icache_range((unsigned long)__init_begin, (unsigned long)__init_end);
-	asm volatile("sync" : : );
-
-	local_irq_enable();
+	memset((void *)init_begin, 0x00, init_end - init_begin);
+	flush_icache_range(init_begin, init_end);
 #endif
 	
 	/* align __init_begin and __init_end to page size,
 	   ignoring linker script where we might have tried to save RAM */
-	init_begin = PAGE_ALIGN((unsigned long)(__init_begin));
-	init_end   = PAGE_ALIGN((unsigned long)(__init_end));
+	init_begin = PAGE_ALIGN(init_begin);
+	init_end = PAGE_ALIGN(init_end);
 	for (addr = init_begin; addr < init_end; addr += PAGE_SIZE) {
 		ClearPageReserved(virt_to_page(addr));
 		init_page_count(virt_to_page(addr));
@@ -409,7 +397,8 @@ void free_initmem(void)
 	/* set up a new led state on systems shipped LED State panel */
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE);
 	
-	printk("%luk freed\n", (init_end - init_begin) >> 10);
+	printk(KERN_INFO "Freeing unused kernel memory: %luk freed\n",
+		(init_end - init_begin) >> 10);
 }
 
 
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 5d610cb..0f0e0b9 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1134,7 +1134,7 @@ static const struct file_operations ccio_proc_bitmap_fops = {
 	.llseek = seq_lseek,
 	.release = single_release,
 };
-#endif
+#endif /* CONFIG_PROC_FS */
 
 /**
  * ccio_find_ioc - Find the ioc in the ioc_list
@@ -1568,14 +1568,15 @@ static int __init ccio_probe(struct parisc_device *dev)
 	/* if this fails, no I/O cards will work, so may as well bug */
 	BUG_ON(dev->dev.platform_data == NULL);
 	HBA_DATA(dev->dev.platform_data)->iommu = ioc;
-	
+
+#ifdef CONFIG_PROC_FS
 	if (ioc_count == 0) {
 		proc_create(MODULE_NAME, 0, proc_runway_root,
 			    &ccio_proc_info_fops);
 		proc_create(MODULE_NAME"-bitmap", 0, proc_runway_root,
 			    &ccio_proc_bitmap_fops);
 	}
-
+#endif
 	ioc_count++;
 
 	parisc_has_iommu();
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 52ae0b1..c590974 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -353,7 +353,7 @@ static unsigned int dino_startup_irq(unsigned int irq)
 	return 0;
 }
 
-static struct hw_interrupt_type dino_interrupt_type = {
+static struct irq_chip dino_interrupt_type = {
 	.typename	= "GSC-PCI",
 	.startup	= dino_startup_irq,
 	.shutdown	= dino_disable_irq,
@@ -1019,22 +1019,22 @@ static int __init dino_probe(struct parisc_device *dev)
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	bus = pci_scan_bus_parented(&dev->dev, dino_current_bus,
-				    &dino_cfg_ops, NULL);
+	dino_dev->hba.hba_bus = bus = pci_scan_bus_parented(&dev->dev,
+			 dino_current_bus, &dino_cfg_ops, NULL);
+
 	if(bus) {
-		pci_bus_add_devices(bus);
 		/* This code *depends* on scanning being single threaded
 		 * if it isn't, this global bus number count will fail
 		 */
 		dino_current_bus = bus->subordinate + 1;
 		pci_bus_assign_resources(bus);
+		pci_bus_add_devices(bus);
 	} else {
-		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (probably duplicate bus number %d)\n",
+		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
 		       dev_name(&dev->dev), dino_current_bus);
 		/* increment the bus number in case of duplicates */
 		dino_current_bus++;
 	}
-	dino_dev->hba.hba_bus = bus;
 	return 0;
 }
 
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index f415fdd..eb079d6 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -188,7 +188,7 @@ static unsigned int eisa_startup_irq(unsigned int irq)
 	return 0;
 }
 
-static struct hw_interrupt_type eisa_interrupt_type = {
+static struct irq_chip eisa_interrupt_type = {
 	.typename =	"EISA",
 	.startup =	eisa_startup_irq,
 	.shutdown =	eisa_disable_irq,
diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c
index d336329..647adc9 100644
--- a/drivers/parisc/gsc.c
+++ b/drivers/parisc/gsc.c
@@ -148,7 +148,7 @@ static unsigned int gsc_asic_startup_irq(unsigned int irq)
 	return 0;
 }
 
-static struct hw_interrupt_type gsc_asic_interrupt_type = {
+static struct irq_chip gsc_asic_interrupt_type = {
 	.typename =	"GSC-ASIC",
 	.startup =	gsc_asic_startup_irq,
 	.shutdown =	gsc_asic_disable_irq,
@@ -158,7 +158,7 @@ static struct hw_interrupt_type gsc_asic_interrupt_type = {
 	.end =		no_end_irq,
 };
 
-int gsc_assign_irq(struct hw_interrupt_type *type, void *data)
+int gsc_assign_irq(struct irq_chip *type, void *data)
 {
 	static int irq = GSC_IRQ_BASE;
 	struct irq_desc *desc;
diff --git a/drivers/parisc/gsc.h b/drivers/parisc/gsc.h
index 762a1ba..b9d7bfb 100644
--- a/drivers/parisc/gsc.h
+++ b/drivers/parisc/gsc.h
@@ -38,7 +38,7 @@ struct gsc_asic {
 int gsc_common_setup(struct parisc_device *parent, struct gsc_asic *gsc_asic);
 int gsc_alloc_irq(struct gsc_irq *dev);			/* dev needs an irq */
 int gsc_claim_irq(struct gsc_irq *dev, int irq);	/* dev needs this irq */
-int gsc_assign_irq(struct hw_interrupt_type *type, void *data);
+int gsc_assign_irq(struct irq_chip *type, void *data);
 int gsc_find_local_irq(unsigned int irq, int *global_irq, int limit);
 void gsc_fixup_irqs(struct parisc_device *parent, void *ctrl,
 		void (*choose)(struct parisc_device *child, void *ctrl));
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 73348c4..230a5a4 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -727,7 +727,7 @@ static void iosapic_set_affinity_irq(unsigned int irq,
 }
 #endif
 
-static struct hw_interrupt_type iosapic_interrupt_type = {
+static struct irq_chip iosapic_interrupt_type = {
 	.typename =	"IO-SAPIC-level",
 	.startup =	iosapic_startup_irq,
 	.shutdown =	iosapic_disable_irq,
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 59fbbf1..da75cd4 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -980,28 +980,38 @@ static void
 lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 {
 	unsigned long bytecnt;
-	pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;	/* PA_VIEW */
-	pdc_pat_cell_mod_maddr_block_t io_pdc_cell;	/* IO_VIEW */
 	long io_count;
 	long status;	/* PDC return status */
 	long pa_count;
+	pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;    /* PA_VIEW */
+	pdc_pat_cell_mod_maddr_block_t *io_pdc_cell;    /* IO_VIEW */
 	int i;
 
+	pa_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t), GFP_KERNEL);
+	if (!pa_pdc_cell)
+		return;
+
+	io_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t), GFP_KERNEL);
+	if (!io_pdc_cell) {
+		kfree(pa_pdc_cell);
+		return;
+	}
+
 	/* return cell module (IO view) */
 	status = pdc_pat_cell_module(&bytecnt, pa_dev->pcell_loc, pa_dev->mod_index,
-				PA_VIEW, & pa_pdc_cell);
-	pa_count = pa_pdc_cell.mod[1];
+				PA_VIEW, pa_pdc_cell);
+	pa_count = pa_pdc_cell->mod[1];
 
 	status |= pdc_pat_cell_module(&bytecnt, pa_dev->pcell_loc, pa_dev->mod_index,
-				IO_VIEW, &io_pdc_cell);
-	io_count = io_pdc_cell.mod[1];
+				IO_VIEW, io_pdc_cell);
+	io_count = io_pdc_cell->mod[1];
 
 	/* We've already done this once for device discovery...*/
 	if (status != PDC_OK) {
 		panic("pdc_pat_cell_module() call failed for LBA!\n");
 	}
 
-	if (PAT_GET_ENTITY(pa_pdc_cell.mod_info) != PAT_ENTITY_LBA) {
+	if (PAT_GET_ENTITY(pa_pdc_cell->mod_info) != PAT_ENTITY_LBA) {
 		panic("pdc_pat_cell_module() entity returned != PAT_ENTITY_LBA!\n");
 	}
 
@@ -1016,8 +1026,8 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 		} *p, *io;
 		struct resource *r;
 
-		p = (void *) &(pa_pdc_cell.mod[2+i*3]);
-		io = (void *) &(io_pdc_cell.mod[2+i*3]);
+		p = (void *) &(pa_pdc_cell->mod[2+i*3]);
+		io = (void *) &(io_pdc_cell->mod[2+i*3]);
 
 		/* Convert the PAT range data to PCI "struct resource" */
 		switch(p->type & 0xff) {
@@ -1096,6 +1106,9 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 			break;
 		}
 	}
+
+	kfree(pa_pdc_cell);
+	kfree(io_pdc_cell);
 }
 #else
 /* keep compiler from complaining about missing declarations */
@@ -1509,10 +1522,6 @@ lba_driver_probe(struct parisc_device *dev)
 	lba_bus = lba_dev->hba.hba_bus =
 		pci_scan_bus_parented(&dev->dev, lba_dev->hba.bus_num.start,
 				cfg_ops, NULL);
-	if (lba_bus) {
-		lba_next_bus = lba_bus->subordinate + 1;
-		pci_bus_add_devices(lba_bus);
-	}
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
@@ -1533,7 +1542,6 @@ lba_driver_probe(struct parisc_device *dev)
 	}
 	pci_enable_bridges(lba_bus);
 
-
 	/*
 	** Once PCI register ops has walked the bus, access to config
 	** space is restricted. Avoids master aborts on config cycles.
@@ -1543,6 +1551,11 @@ lba_driver_probe(struct parisc_device *dev)
 		lba_dev->flags |= LBA_FLAG_SKIP_PROBE;
 	}
 
+	if (lba_bus) {
+		lba_next_bus = lba_bus->subordinate + 1;
+		pci_bus_add_devices(lba_bus);
+	}
+
 	/* Whew! Finally done! Tell services we got this one covered. */
 	return 0;
 }
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index f9f9a5f..13a64bc 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -370,7 +370,7 @@ pdcspath_layer_read(struct pdcspath_entry *entry, char *buf)
 	if (!i)	/* entry is not ready */
 		return -ENODATA;
 	
-	for (i = 0; devpath->layers[i] && (likely(i < 6)); i++)
+	for (i = 0; i < 6 && devpath->layers[i]; i++)
 		out += sprintf(out, "%u ", devpath->layers[i]);
 
 	out += sprintf(out, "\n");
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index e5999c4..4b62b89 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -2057,6 +2057,7 @@ void sba_directed_lmmio(struct parisc_device *pci_hba, struct resource *r)
 		r->start = (base & ~1UL) | PCI_F_EXTEND;
 		size = ~ READ_REG32(reg + LMMIO_DIRECT0_MASK);
 		r->end = r->start + size;
+		r->flags = IORESOURCE_MEM;
 	}
 }
 
@@ -2093,4 +2094,5 @@ void sba_distributed_lmmio(struct parisc_device *pci_hba, struct resource *r )
 	size = (~READ_REG32(sba->sba_hpa + LMMIO_DIST_MASK)) / ROPES_PER_IOC;
 	r->start += rope * (size + 1);	/* adjust base for this rope */
 	r->end = r->start + size;
+	r->flags = IORESOURCE_MEM;
 }
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 33e5ade..675f04e 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -325,7 +325,7 @@ static unsigned int superio_startup_irq(unsigned int irq)
 	return 0;
 }
 
-static struct hw_interrupt_type superio_interrupt_type = {
+static struct irq_chip superio_interrupt_type = {
 	.typename =	SUPERIO,
 	.startup =	superio_startup_irq,
 	.shutdown =	superio_disable_irq,
@@ -434,8 +434,8 @@ static void __init superio_parport_init(void)
 			0 /*base_hi*/,
 			PAR_IRQ, 
 			PARPORT_DMA_NONE /* dma */,
-			NULL /*struct pci_dev* */),
-			0 /* shared irq flags */ )
+			NULL /*struct pci_dev* */,
+			0 /* shared irq flags */))
 
 		printk(KERN_WARNING PFX "Probing parallel port failed.\n");
 #endif	/* CONFIG_PARPORT_PC */
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 0048f11..9eecbc0 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -616,6 +616,8 @@ config FB_STI
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
+	select STI_CONSOLE
+	select VT
 	default y
 	---help---
 	  STI refers to the HP "Standard Text Interface" which is a set of

--mP3DRpeJDSE+ciuQ--
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From: Kyle McMartin <kyle@hera.kernel.org>
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Subject: [git patches] parisc for 2.6.32
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Mostly fixes, except for the tracehook stuff... then again cleaning up
ptrace is a pretty big fix in and of itself. ;-)

The following changes since commit 17d857be649a21ca90008c6dc425d849fa83db5c:
  Linus Torvalds (1):
        Linux 2.6.32-rc1

are available in the git repository at:

  hera.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git fixes

Christoph Hellwig (1):
      parisc: convert to asm-generic/hardirq.h

Helge Deller (3):
      parisc: rename parisc's vmalloc_start to parisc_vmalloc_start
      parisc: Fix linker script breakage.
      agp: parisc-agp.c - use correct page_mask function

James Bottomley (1):
      parisc: add me to Maintainers

Jaswinder Singh Rajput (1):
      parisc: includecheck fix: signal.c

Julia Lawall (1):
      parisc: correct use of SHF_ALLOC

Kyle McMartin (7):
      parisc: tracehook_report_syscall
      parisc: tracehook_signal_handler
      parisc: add missing TI_TASK macro in syscall.S
      parisc: split syscall_trace into two halves
      parisc: stop using task->ptrace for {single,block}step flags
      parisc: add skeleton syscall.h
      parisc: HAVE_ARCH_TRACEHOOK

Tim Abbott (1):
      parisc: Make THREAD_SIZE available to assembly files and linker scripts.

 MAINTAINERS                           |    1 +
 arch/parisc/Kconfig                   |    1 +
 arch/parisc/include/asm/fixmap.h      |    4 +-
 arch/parisc/include/asm/hardirq.h     |   20 +---------------
 arch/parisc/include/asm/ptrace.h      |    5 +++-
 arch/parisc/include/asm/syscall.h     |   40 +++++++++++++++++++++++++++++++
 arch/parisc/include/asm/thread_info.h |   14 +++++++----
 arch/parisc/kernel/asm-offsets.c      |    4 +-
 arch/parisc/kernel/entry.S            |   21 ++++++++--------
 arch/parisc/kernel/irq.c              |    5 ----
 arch/parisc/kernel/module.c           |    2 +-
 arch/parisc/kernel/ptrace.c           |   42 ++++++++++++++++----------------
 arch/parisc/kernel/signal.c           |    5 +++-
 arch/parisc/kernel/syscall.S          |   22 +++++++++++------
 arch/parisc/kernel/vmlinux.lds.S      |   10 ++++++++
 arch/parisc/mm/init.c                 |   11 ++++----
 drivers/char/agp/parisc-agp.c         |    2 +-
 17 files changed, 128 insertions(+), 81 deletions(-)
 create mode 100644 arch/parisc/include/asm/syscall.h

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On Tue, 6 Oct 2009, Kyle McMartin wrote:
<
> Mostly fixes, except for the tracehook stuff...

I don't see how this can be fixes, since I can't recall any parisc pulls 
during the merge window.

Yes, there have been parisc changes, but they've all come in through 
commits that either were global and people also fixed up parisc while at 
it (eg things like "fcntl: add F_[SG]ETOWN_EX"), or they have been build 
cleanups where you were cc'd but apparently never even bothered to ack the 
change.

So now you come in after the merge window has been closed for over a week, 
and want to do a parisc merge?

Tell me why I should take this. Tell me why I shouldn't just wait until 
the next merge window (or rather "_you_ should have waited").

I've now had two pull requests just today that made me go "I don't really 
see why I should pull this after -rc3 is out".

			Linus
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From - Thu Nov 08 21:05:01 2018
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Subject: Re: [git patches] parisc for 2.6.32
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On Tue, Oct 06, 2009 at 10:40:10AM -0700, Linus Torvalds wrote:
> 
> 
> On Tue, 6 Oct 2009, Kyle McMartin wrote:
> <
> > Mostly fixes, except for the tracehook stuff...
> 
> I don't see how this can be fixes, since I can't recall any parisc pulls 
> during the merge window.
> 
> Yes, there have been parisc changes, but they've all come in through 
> commits that either were global and people also fixed up parisc while at 
> it (eg things like "fcntl: add F_[SG]ETOWN_EX"), or they have been build 
> cleanups where you were cc'd but apparently never even bothered to ack the 
> change.
> 

Christoph Hellwig (1):
      parisc: convert to asm-generic/hardirq.h

Jaswinder Singh Rajput (1):
      parisc: includecheck fix: signal.c

James Bottomley (1):
      parisc: add me to Maintainers

- These could wait.

Helge Deller (3):
      parisc: rename parisc's vmalloc_start to parisc_vmalloc_start
      parisc: Fix linker script breakage.
      agp: parisc-agp.c - use correct page_mask function

- 3 build fixes (the vmalloc one is a warning because of a name
  collision.)

Julia Lawall (1):
      parisc: correct use of SHF_ALLOC

- Correctness fix (the two symbols have identical values, but still.)

Kyle McMartin (7):
      parisc: tracehook_report_syscall
      parisc: tracehook_signal_handler
      parisc: add missing TI_TASK macro in syscall.S
      parisc: split syscall_trace into two halves
      parisc: stop using task->ptrace for {single,block}step flags
      parisc: add skeleton syscall.h
      parisc: HAVE_ARCH_TRACEHOOK

- Fine, I can drop these until .33

Tim Abbott (1):
      parisc: Make THREAD_SIZE available to assembly files and linker
scripts.

- Build fix.

I mean, take them, or don't. I'm not going to lose any sleep over it. I
do this on a volunteer basis when I have free time between work and
school... 

regards, Kyle

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Kyle, Helge,

Your strace patches are now in upstream strace.

Upstream strace works out-of-the-box for hppa now.

Debian strace should be fixed with the next release.

Cheers,
Carlos.
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From: Helge Deller <deller@gmx.de>
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Hi Linus,

On 10/06/2009 07:40 PM, Linus Torvalds wrote:
> On Tue, 6 Oct 2009, Kyle McMartin wrote:
>> Mostly fixes, except for the tracehook stuff...
>
> I don't see how this can be fixes, since I can't recall any parisc pulls
> during the merge window.

Yes, sadly it was not in time.
And of course it's no excuse, that you didn't received a real pull-request,
even after Kyle asked for feedback for his tree with his mail on LKML and
parisc-list on 2009-09-28:
http://www.pubbs.net/kernel/200909/123965/

> So now you come in after the merge window has been closed for over a week,
> and want to do a parisc merge?
>
> Tell me why I should take this. Tell me why I shouldn't just wait until
> the next merge window (or rather "_you_ should have waited").

This patch really only touches parisc-specific files and it includes
important fixes without which the parisc kernel won't even compile and link.
So, it would help us parisc-porters a lot if you could do an exception and
still pull from Kyle's tree, even after this merge window has been closed.
At least, it would make me personally very happy...

Helge
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Subject: Re: strace for hppa fixed upstream.
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On 10/06/2009 10:34 PM, Carlos O'Donell wrote:
> Kyle, Helge,
>
> Your strace patches are now in upstream strace.
>
> Upstream strace works out-of-the-box for hppa now.
>
> Debian strace should be fixed with the next release.

That's great!

Just today I downloaded the strace you provided at
http://www.parisc-linux.org/~carlos/strace_4.5.18-1_hppa.deb
and installed it on one of my boxes :-)
Very good that that will not be necessary any longer soon...

Helge
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Hi all,

Today's linux-next merge of the parisc tree got conflicts in
arch/parisc/include/asm/thread_info.h and arch/parisc/kernel/entry.S
between commit d0420c83f39f79afb82010c2d2cafd150eef651b ("KEYS: Extend
TIF_NOTIFY_RESUME to (almost) all architectures [try #6]") from Linus'
tree and commit 9f4259771faf1ffd99888796d925adae4c93630b ("parisc: add
TIF_NOTIFY_RESUME and use tracehook_notify_resume") from the parisc tree.

It looks like the parisc tree version is a superset of the version in
Linus' tree (for parisc).  I fixed it up (hopefully - using the parisc
tree versions) and can carry the fix for a while.
--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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On Fri, Oct 09, 2009 at 11:21:58AM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> Today's linux-next merge of the parisc tree got conflicts in
> arch/parisc/include/asm/thread_info.h and arch/parisc/kernel/entry.S
> between commit d0420c83f39f79afb82010c2d2cafd150eef651b ("KEYS: Extend
> TIF_NOTIFY_RESUME to (almost) all architectures [try #6]") from Linus'
> tree and commit 9f4259771faf1ffd99888796d925adae4c93630b ("parisc: add
> TIF_NOTIFY_RESUME and use tracehook_notify_resume") from the parisc tree.
> 
> It looks like the parisc tree version is a superset of the version in
> Linus' tree (for parisc).  I fixed it up (hopefully - using the parisc
> tree versions) and can carry the fix for a while.

Sorry, forgot to push out a new #next. Should be sorted now.

Thanks for the heads up.
 - Kyle

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On Tue, Oct 06, 2009 at 04:34:18PM -0400, Carlos O'Donell wrote:
> Kyle, Helge,
> 
> Your strace patches are now in upstream strace.
> 
> Upstream strace works out-of-the-box for hppa now.
> 
> Debian strace should be fixed with the next release.
> 

awesome work, carlos!

cheers, kyle
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Wu Zhangjin <wuzhangjin@gmail.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Remis Lima Baima <remis.developer@googlemail.com>,
	Christoph Hellwig <hch@lst.de>,
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	Ralf Baechle <ralf@linux-mips.org>,
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	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
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To: Arnd Bergmann <arnd@arndb.de>
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On 10/09/2009 03:42 PM, Arnd Bergmann wrote:
> On Thursday 08 October 2009, Linus Torvalds wrote:
>> for some unfathomable reason. Quite frankly, I think Arnd just screwed up
>> the "generic" version, and the fix is almost certainly to just make the
>> generic version match all the main architectures.
>>
>> I don't have any architectures using the generic header file, though, so
>> I'm not going to do that change blindly. People who do should look at it
>> (alpha, powerpc and mips look like the only ones that might be 64-bit, but
>> I didn't check very carefully - just grepped for it)
>>
>> Added Cc's for some people that have worked on, or used, that generic
>> header file. Is there any possible reason why it is "unsigned long" in
>> that one?
>
> It was intentional to make it unsigned long in the asm-generic
> version, based on the observation that some of the 64-bit architectures
> (alpha and parisc) were using unsigned long in their arch specific
> files. The original parisc file contained
>
> typedef struct {
>         unsigned long __softirq_pending; /* set_bit is used on this */
> } ____cacheline_aligned irq_cpustat_t;
>
> which would imply that unsigned int wouldn't work for it, and looked
> like a good idea. It turns out that the comment is outdated, set_bit
> hasn't been used on __softirq_pending on any architecture for a long
> time as far as I can tell, and 32 bits is obviously enough for it.

Yes, I just tested it on the parisc architecture.
It seems we don't even touch this variable in our code.

> The patch that Ralf just sent looks good therefore, but I'd suggest
> either reverting two of Christophs patches that changed parisc and alpha
> just to be on the safe side, or getting explicit Acks for Ralfs patch
> from the maintainers of those two architectures.

Don't revert for parisc, as either "unsigned long" or "unsigned int" is OK.
So, Ralf's patch (switching __softirq_pending back to "unsigned int") get's my Ack:
Acked-by: Helge Deller <deller@gmx.de>

Helge
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Hi Kyle,

On Fri, 9 Oct 2009 14:39:14 -0400 Kyle McMartin <kyle@mcmartin.ca> wrote:
>
> Sorry, forgot to push out a new #next. Should be sorted now.

No worries, thanks.

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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Remove duplicated #include('s) in
  arch/parisc/kernel/signal.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
---
 arch/parisc/kernel/signal.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index e8467e4..fb37ac5 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -26,7 +26,6 @@
 #include <linux/stddef.h>
 #include <linux/compat.h>
 #include <linux/elf.h>
-#include <linux/tracehook.h>
 #include <asm/ucontext.h>
 #include <asm/rt_sigframe.h>
 #include <asm/uaccess.h>
-- 
1.6.1.3

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Subject: [PATCH] parisc: remove unused IRQSTAT_SIRQ_PEND and IRQSTAT_SZ
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-- 
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index fcd3c70..ec787b4 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -244,9 +244,6 @@ int main(void)
 	DEFINE(THREAD_SZ, sizeof(struct thread_info));
 	DEFINE(THREAD_SZ_ALGN, align(sizeof(struct thread_info), 64));
 	BLANK();
-	DEFINE(IRQSTAT_SIRQ_PEND, offsetof(irq_cpustat_t, __softirq_pending));
-	DEFINE(IRQSTAT_SZ, sizeof(irq_cpustat_t));
-	BLANK();
 	DEFINE(ICACHE_BASE, offsetof(struct pdc_cache_info, ic_base));
 	DEFINE(ICACHE_STRIDE, offsetof(struct pdc_cache_info, ic_stride));
 	DEFINE(ICACHE_COUNT, offsetof(struct pdc_cache_info, ic_count));
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So what's going to happen with this patch series?  Can we expect it to
get merged one day?

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From - Thu Nov 08 21:05:03 2018
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On Tue, 2009-10-13 at 03:40 +0200, Christoph Hellwig wrote:
> So what's going to happen with this patch series?  Can we expect it to
> get merged one day?

Well, we need it for parisc, so we can just push it through our tree.  I
was sort of hoping for confirmation that the other arch bits worked ...
but they can't be more broken than they are today, so I suppose the risk
is low.

James



From - Thu Nov 08 21:05:03 2018
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From: Helge Deller <deller@gmx.de>
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Subject: poll(), illegal instruction and crash on smp kernel
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To: linux-parisc <linux-parisc@vger.kernel.org>,
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In the meantime I've got access to a parisc SMP box (J5000),
and now I think I faced for the very first time the often-here-reported
SMP kernel bug.

While this happened, I was debugging konqueror (the KDE web browser) with
gdb and suddenly I faced this crash:

Program received signal SIGILL, Illegal instruction.
[Switching to Thread 0x8001 (LWP 22707)]
0x405e06fc in poll () from /lib/libc.so.6
(gdb) bt
#0  0x405e06fc in poll () from /lib/libc.so.6
#1  0x41bb45a0 in __pthread_manager () from /lib/libpthread.so.0
#2  0x41bb4e4c in __pthread_manager_event () from /lib/libpthread.so.0
#3  0x405eb340 in clone () from /lib/libc.so.6
#4  0x00000010 in ?? ()
#5  0x00000010 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb)

dmesg shows:

[557116.676000] User Fault on Kernel Space pid=22910 command='konqueror'
[557116.676000]
[557116.676000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[557116.676000] PSW: 00000000000001000000000000001011 Tainted: G        W
[557116.676000] r00-03  0004000b 41bbf31c 405e06df 000007d0
[557116.676000] r04-07  4065f134 00000001 0070a480 00000000
[557116.676000] r08-11  008be600 0070a480 00000011 001ff000
[557116.676000] r12-15  c025d970 41bc14c8 00001000 44665000
[557116.676000] r16-19  008bdec0 00000010 0070a508 4065f134
[557116.676000] r20-23  000000a8 008bdec0 4054d3ec 00000000
[557116.676000] r24-27  000007d0 00000001 0070a480 00011b10
[557116.676000] r28-31  00000000 00000008 0070a6f8 0070a700
[557116.676000] sr00-03  00001283 00000000 00000000 00001283
[557116.676000] sr04-07  00001283 00001283 00001283 00001283
[557116.676000]
[557116.676000]       VZOUICununcqcqcqcqcqcrmunTDVZOUI
[557116.676000] FPSR: 00001100000101010100000000000000
[557116.676000] FPER1: 00000000
[557116.676000] fr00-03  0c15400000000000 0000000000000000 0000000000000000 0000000000000000
[557116.676000] fr04-07  0000000000000000 bff921fb54442eea 0000000000000000 0000000000000000
[557116.676000] fr08-11  bfbf4842a80ef044 0000000000000000 bfd520324ad3ef15 4004cccccccccccd
[557116.676000] fr12-15  4183225470000000 4183225470000000 0000000000000000 00000000ffffffff
[557116.676000] fr16-19  0000000000000000 103d16ec11667180 00000000fffff000 8f82f00000000000
[557116.676000] fr20-23  ffffff9c00000002 3b9aca0010452540 0000000000000098 3ff0000000000000
[557116.676000] fr24-27  3ff051eb851eb852 0000000000000000 0000000000000000 3a8a7a187f5c3568
[557116.676000] fr28-31  3d3d1b9676733ae9 3ff0000000000000 bfd8d24e1e7bd6d4 3b92e3b40a0e9b4f
[557116.676000]
[557116.676000] IASQ: 00001283 00001283 IAOQ: 0070a703 0070a707
[557116.676000]  IIR: 4051bcc8    ISR: 00000000  IOR: 405e2543
[557116.676000]  CPU:        1   CR30: 8fed4000 CR31: ffffffff
[557116.676000]  ORIG_R28: 00000000
[557116.676000]  IAOQ[0]: 0070a703
[557116.676000]  IAOQ[1]: 0070a707
[557116.676000]  RP(r2): 405e06df

Does this sound familiar to anybody here?
Does this backtrace help?

The installed kernel is Debian's 2.6.30-2-parisc-smp kernel.

Btw, the glibc is the standard (linuxthreads-based) Debian glibc 2.9-27.
I haven't yet installed Carlos' NPTL-enabled glibc on this machine yet.

Helge
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From - Thu Nov 08 21:05:03 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: poll(), illegal instruction and crash on smp kernel
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On Wed, Oct 14, 2009 at 5:59 PM, Helge Deller <deller@gmx.de> wrote:
> Program received signal SIGILL, Illegal instruction.
> [Switching to Thread 0x8001 (LWP 22707)]
> 0x405e06fc in poll () from /lib/libc.so.6
> (gdb) bt
> #0 =A00x405e06fc in poll () from /lib/libc.so.6
> #1 =A00x41bb45a0 in __pthread_manager () from /lib/libpthread.so.0
> #2 =A00x41bb4e4c in __pthread_manager_event () from /lib/libpthread.s=
o.0
> #3 =A00x405eb340 in clone () from /lib/libc.so.6
> #4 =A00x00000010 in ?? ()
> #5 =A00x00000010 in ?? ()
> Backtrace stopped: previous frame identical to this frame (corrupt st=
ack?)
> (gdb)

If this happens again please provide the /proc/$PID/maps, it's
invaluable to mapping that libc address to an instruction.

> dmesg shows:
>
> [557116.676000] User Fault on Kernel Space pid=3D22910 command=3D'kon=
queror'

That's correct we tried to read kernel space.

build-tools/disasm says the faulting instruction is:
   0:   40 51 bc c8     ldb 1e64(sr2,rp),r17

I would have expect a SIGSEGV for that (trying to read from kernel
space sr2) instruction, but perhaps we deliver SIGILL in that case.

> [557116.676000] IASQ: 00001283 00001283 IAOQ: 0070a703 0070a707
> [557116.676000] =A0IIR: 4051bcc8 =A0 =A0ISR: 00000000 =A0IOR: 405e254=
3
> [557116.676000] =A0CPU: =A0 =A0 =A0 =A01 =A0 CR30: 8fed4000 CR31: fff=
fffff
> [557116.676000] =A0ORIG_R28: 00000000
> [557116.676000] =A0IAOQ[0]: 0070a703
> [557116.676000] =A0IAOQ[1]: 0070a707
> [557116.676000] =A0RP(r2): 405e06df
>
> Does this sound familiar to anybody here?
> Does this backtrace help?

No idea, but the instruction "4051bcc8" (see IIR in dump) doesn't
exist in libc.so.6 for 2.9-27. Something corrupted memory, and it
corrupted a read-only .text mapping. The only thing that can do that
is the kernel.

This is pretty much 100% a kernel bug?

Cheers,
Carlos.
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From: Julia Lawall <julia@diku.dk>

If the NULL test on h is needed in snd_harmony_mixer_init, then the
dereference should be after the NULL test.

Actually, there is a sequence of calls: snd_harmony_create, then
snd_harmony_pcm_init, and then snd_harmony_mixer_init.  snd_harmony_create
initializes h, but may indeed leave it as NULL.  There was no NULL test at
the beginning of snd_harmony_pcm_init, so I have added one.  The NULL test
in snd_harmony_mixer_init is then not necessary, but in case the ordering
of the calls changes, I have left it, and moved the dereference after it.

A simplified version of the semantic match that detects this problem is as
follows (http://coccinelle.lip6.fr/):

// <smpl>
@match exists@
expression x, E;
identifier fld;
@@

* x->fld
  ... when != \(x = E\|&x\)
* x == NULL
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
 sound/parisc/harmony.c              |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/sound/parisc/harmony.c b/sound/parisc/harmony.c
index e924492..f47f9e2 100644
--- a/sound/parisc/harmony.c
+++ b/sound/parisc/harmony.c
@@ -624,6 +624,9 @@ snd_harmony_pcm_init(struct snd_harmony *h)
 	struct snd_pcm *pcm;
 	int err;
 
+	if (snd_BUG_ON(!h))
+		return -EINVAL;
+
 	harmony_disable_interrupts(h);
 	
    	err = snd_pcm_new(h->card, "harmony", 0, 1, 1, &pcm);
@@ -865,11 +868,12 @@ snd_harmony_mixer_reset(struct snd_harmony *h)
 static int __devinit
 snd_harmony_mixer_init(struct snd_harmony *h)
 {
-	struct snd_card *card = h->card;
+	struct snd_card *card;
 	int idx, err;
 
 	if (snd_BUG_ON(!h))
 		return -EINVAL;
+	card = h->card;
 	strcpy(card->mixername, "Harmony Gain control interface");
 
 	for (idx = 0; idx < HARMONY_CONTROLS; idx++) {
--
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From: Domenico Andreoli <cavokz@gmail.com>
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Subject: Hardware Database is missing
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Hi,

any news about the Hardware Database on parisc-linux.org? It disappeared.

cheers,
Domenico

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From - Thu Nov 08 21:05:03 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix unwind
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kernel unwinding is broken with gcc >= 4.x. Part of the problem is, that
binutils seems sensible where the unwind information is stored.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 69dad5a..6c631bf 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -28,7 +28,7 @@
 #define dbg(x...)
 #endif
 
-#define KERNEL_START (KERNEL_BINARY_TEXT_START - 0x1000)
+#define KERNEL_START (KERNEL_BINARY_TEXT_START)
 
 extern struct unwind_table_entry __start___unwind[];
 extern struct unwind_table_entry __stop___unwind[];
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index fda4baa..9dab4a4 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -78,9 +78,6 @@ SECTIONS
 	 */
 	. = ALIGN(PAGE_SIZE);
 	data_start = .;
-	EXCEPTION_TABLE(16)

From - Thu Nov 08 21:05:03 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: add CALLER_ADDR{0-6} macros
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Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/include/asm/ftrace.h b/arch/parisc/include/asm/ftrace.h
index 2fa05dd..72c0faf 100644
--- a/arch/parisc/include/asm/ftrace.h
+++ b/arch/parisc/include/asm/ftrace.h
@@ -20,6 +20,20 @@ struct ftrace_ret_stack {
  * Defined in entry.S
  */
 extern void return_to_handler(void);
+
+
+extern unsigned long return_address(unsigned int);
+
+#define HAVE_ARCH_CALLER_ADDR
+
+#define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))
+#define CALLER_ADDR1 return_address(1)
+#define CALLER_ADDR2 return_address(2)
+#define CALLER_ADDR3 return_address(3)
+#define CALLER_ADDR4 return_address(4)
+#define CALLER_ADDR5 return_address(5)
+#define CALLER_ADDR6 return_address(6)
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_PARISC_FTRACE_H */
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 69dad5a..6c631bf 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -417,3 +429,31 @@ int unwind_to_user(struct unwind_frame_info *info)
 
 	return ret;
 }
+
+unsigned long return_address(unsigned int level)
+{
+	struct unwind_frame_info info;
+	struct pt_regs r;
+	unsigned long sp;
+
+	/* initialize unwind info */
+	asm volatile ("copy %%r30, %0" : "=r"(sp));
+	memset(&r, 0, sizeof(struct pt_regs));
+	r.iaoq[0] = (unsigned long) current_text_addr();
+	r.gr[2] = (unsigned long) __builtin_return_address(0);
+	r.gr[30] = sp;
+	unwind_frame_init(&info, current, &r);
+
+	/* unwind stack */
+	++level;
+	do {
+		if (unwind_once(&info) < 0 || info.ip == 0)
+			return 0;
+		if (!__kernel_text_address(info.ip)) {
+			return 0;
+		}
+	} while (info.ip && level--);
+
+	return info.ip;
+}
+
--
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I started to look into the problem why we get the
> WARNING: Out of order unwind entry!
warning messages at kernel bootup in dmesg.

It's related to a binutils/linker bug, that ld does not correctly
removes unlink information for unused weak symbols, which have been
replaced by their non-weak ones.

In my kernel I could track it down to 2 symbols:
- arch_mod_section_prepend()  from kernel/module.c, and
- save_stack_trace_tsk().

Here is the extract of the readelf output on vmlinux:
...
<inb>: [0x1011fbd4-0x1011fc48]
         Entry_GR=1 Save_SP Save_RP Total_frame_size=8
<arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
         Entry_GR=1 Save_SP Total_frame_size=8
<arch_mod_section_prepend>: [0x1011fc4c-0x10167cf4]
         Entry_GR=1 Save_SP Total_frame_size=8
<module_arch_cleanup>: [0x1011fc78-0x1011fcb8]
         Entry_GR=2 Save_SP Save_RP Total_frame_size=8
...

same for "save_stack_trace_tsk":

<dump_trace>: [0x10120834-0x10120950]
         Entry_GR=7 Save_SP Save_RP Total_frame_size=80
<save_stack_trace_tsk>: [0x10120954-0x101209a4]
         Entry_GR=2 Save_SP Save_RP Total_frame_size=8
<save_stack_trace_tsk>: [0x10120954-0x1015c7a8]
         Entry_GR=2 Save_SP Save_RP Total_frame_size=8
<save_stack_trace>: [0x101209a8-0x10120a04]
         Entry_GR=2 Save_SP Save_RP Total_frame_size=8

as you can see, both functions (weak and non-weak) are in the
unwind section, although the functions were only linked
once each into the vmlinux binary.

That said, maybe someone of you with binutils/ld knowledge have
some idea or hint how to fix this (aka drop the weak entry completely
from the unwind section) ?
If not, I'll continue to dig into the binutils sources (although
this takes time, as I'm just starting with this)...

Helge
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Subject: Re: Out of order unwind entry warning
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On Mon, Oct 26, 2009 at 11:21:20PM +0100, Helge Deller wrote:
> I started to look into the problem why we get the
>> WARNING: Out of order unwind entry!
> warning messages at kernel bootup in dmesg.
>
> It's related to a binutils/linker bug, that ld does not correctly
> removes unlink information for unused weak symbols, which have been
> replaced by their non-weak ones.
>

Looks like you did some good sleuthing... Although... I notice that
ia64 doesn't seem to bother to do this sanity check on the unwind table.

tausq, should we just drop it in ours too? I can't see any evidence ia64
does anything differently in bfd that would circumvent this kind of
issue.

regards, Kyle
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Subject: Re: Out of order unwind entry warning
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> Looks like you did some good sleuthing... Although... I notice that
> ia64 doesn't seem to bother to do this sanity check on the unwind table.
> 
> tausq, should we just drop it in ours too? I can't see any evidence ia64
> does anything differently in bfd that would circumvent this kind of
> issue.

IIRC we do a binary search for the unwind entry. If the entries are not 
sorted, the binary search will give wrong results.

randolph

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From - Thu Nov 08 21:05:03 2018
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Subject: Re: Out of order unwind entry warning
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On Tue, Oct 27, 2009 at 09:50:23AM +0800, Randolph Chung wrote:
>> Looks like you did some good sleuthing... Although... I notice that
>> ia64 doesn't seem to bother to do this sanity check on the unwind table.
>>
>> tausq, should we just drop it in ours too? I can't see any evidence ia64
>> does anything differently in bfd that would circumvent this kind of
>> issue.
>
> IIRC we do a binary search for the unwind entry. If the entries are not  
> sorted, the binary search will give wrong results.
>

Indeed, would be interesting to add this sanity check to ia64 and see
what happens.

regards, Kyle
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From - Thu Nov 08 21:05:03 2018
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Subject: Re: [PATCH] parisc: add CALLER_ADDR{0-6} macros
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Helge,

> +unsigned long return_address(unsigned int level)
> +{
> +	struct unwind_frame_info info;
> +	struct pt_regs r;
> +	unsigned long sp;
> +
> +	/* initialize unwind info */
> +	asm volatile ("copy %%r30, %0" : "=r"(sp));
> +	memset(&r, 0, sizeof(struct pt_regs));
> +	r.iaoq[0] = (unsigned long) current_text_addr();
> +	r.gr[2] = (unsigned long) __builtin_return_address(0);
> +	r.gr[30] = sp;
> +	unwind_frame_init(&info, current, &r);
> +
> +	/* unwind stack */
> +	++level;
> +	do {
> +		if (unwind_once(&info) < 0 || info.ip == 0)
> +			return 0;
> +		if (!__kernel_text_address(info.ip)) {
> +			return 0;
> +		}
> +	} while (info.ip && level--);
> +
> +	return info.ip;
> +}
> +

Can you show an objdump of this function once it is compiled? I suspect 
the stack pointer initialization here is not reliable.

Ideally unwind_frame_init is called with the frame address in gr[30]. 
With a big struct like pt_regs on the stack, the sp initialization might 
be quite far from the actual frame address.

The unwind_once() code uses like heuristics to try to recover from 
inaccurate stack pointers (by aligning and stepping the frame 64 bytes 
at a time) but that is really a brute force guess.

I realize I used a similar construct in traps.c, but even there I think 
it doesn't work reliably.

Maybe somebody else on the list (Dave? :) can suggest a better way to do 
this.

randolph
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From - Thu Nov 08 21:05:03 2018
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* Randolph Chung <randolph@tausq.org>:
>> +unsigned long return_address(unsigned int level)
>> +{
>> +	struct unwind_frame_info info;
>> +	struct pt_regs r;
>> +	unsigned long sp;
>> +
>> +	/* initialize unwind info */
>> +	asm volatile ("copy %%r30, %0" : "=r"(sp));
>> +	memset(&r, 0, sizeof(struct pt_regs));
>> +	r.iaoq[0] = (unsigned long) current_text_addr();
>> +	r.gr[2] = (unsigned long) __builtin_return_address(0);
>> +	r.gr[30] = sp;
>> +	unwind_frame_init(&info, current, &r);
>> +
>> +	/* unwind stack */
>> +	++level;
>> +	do {
>> +		if (unwind_once(&info) < 0 || info.ip == 0)
>> +			return 0;
>> +		if (!__kernel_text_address(info.ip)) {
>> +			return 0;
>> +		}
>> +	} while (info.ip && level--);
>> +
>> +	return info.ip;
>> +}
>> +
>
> Can you show an objdump of this function once it is compiled? I suspect  
> the stack pointer initialization here is not reliable.

> Ideally unwind_frame_init is called with the frame address in gr[30].  
> With a big struct like pt_regs on the stack, the sp initialization might  
> be quite far from the actual frame address.
>
> The unwind_once() code uses like heuristics to try to recover from  
> inaccurate stack pointers (by aligning and stepping the frame 64 bytes  
> at a time) but that is really a brute force guess.
>
> I realize I used a similar construct in traps.c, but even there I think  
> it doesn't work reliably.

Hi Randolph,

I agree, that those kind of implementations may not always be reliable.
Nevertheless, I started off with a copy of your code, but it didn't
worked at all. I assume due to some compiler-trickery to include the
static local functions in other functions it does work in traps.c 
nevertheless.

I did sucessfully tested the patch I submitted here, both in 32- and 64-bit.

Below is the disassembly of the code which you asked for...

Helge


Disassembly of section .text.return_address:

00000000 <return_address>:
   0:	08 03 02 41 	copy r3,r1
   4:	6b c2 3f d9 	stw rp,-14(sp)
   8:	08 1e 02 43 	copy sp,r3
   c:	6f c1 04 80 	stw,ma r1,240(sp)
  10:	68 67 04 00 	stw r7,200(r3)
  14:	08 02 02 47 	copy rp,r7
  18:	68 66 04 08 	stw r6,204(r3)
  1c:	08 1a 02 46 	copy r26,r6
  20:	68 65 04 10 	stw r5,208(r3)
  24:	68 64 04 18 	stw r4,20c(r3)
  28:	08 1e 02 44 	copy sp,r4
  2c:	34 65 00 50 	ldo 28(r3),r5
  30:	34 19 00 00 	ldi 0,r25
  34:	08 05 02 5a 	copy r5,r26
  38:	e8 40 00 00 	b,l 40 <return_address+0x40>,rp
  3c:	34 18 03 b0 	ldi 1d8,r24
  40:	68 67 00 60 	stw r7,30(r3)
  44:	eb 80 40 00 	blr r0,ret0
  48:	08 00 02 40 	nop
  4c:	68 64 01 40 	stw r4,a0(r3)
  50:	68 7c 03 a0 	stw ret0,1d0(r3)
  54:	03 c0 08 bc 	mfctl tr6,ret0
  58:	34 64 00 10 	ldo 8(r3),r4
  5c:	0f 80 10 99 	ldw 0(ret0),r25
  60:	08 04 02 5a 	copy r4,r26
  64:	e8 40 00 00 	b,l 6c <return_address+0x6c>,rp
  68:	08 05 02 58 	copy r5,r24
  6c:	08 04 02 5a 	copy r4,r26
  70:	e8 40 00 00 	b,l 78 <return_address+0x78>,rp
  74:	34 c6 00 02 	ldo 1(r6),r6
  78:	8f 80 60 80 	cmpib,> 0,ret0,c0 <return_address+0xc0>
  7c:	34 1c 00 00 	ldi 0,ret0
  80:	48 7c 00 20 	ldw 10(r3),ret0
  84:	87 80 20 68 	cmpib,= 0,ret0,c0 <return_address+0xc0>
  88:	08 1c 02 5a 	copy ret0,r26
  8c:	e8 40 00 00 	b,l 94 <return_address+0x94>,rp
  90:	08 00 02 40 	nop
  94:	87 80 20 40 	cmpib,= 0,ret0,bc <return_address+0xbc>
  98:	48 7c 00 20 	ldw 10(r3),ret0
  9c:	87 80 20 40 	cmpib,= 0,ret0,c4 <return_address+0xc4>
  a0:	48 62 3f d9 	ldw -14(r3),rp
  a4:	84 c0 20 30 	cmpib,= 0,r6,c4 <return_address+0xc4>
  a8:	08 04 02 5a 	copy r4,r26
  ac:	e8 40 00 00 	b,l b4 <return_address+0xb4>,rp
  b0:	34 c6 3f ff 	ldo -1(r6),r6
  b4:	87 80 7f 95 	cmpib,<= 0,ret0,84 <return_address+0x84>
  b8:	48 7c 00 20 	ldw 10(r3),ret0
  bc:	34 1c 00 00 	ldi 0,ret0
  c0:	48 62 3f d9 	ldw -14(r3),rp
  c4:	48 67 04 00 	ldw 200(r3),r7
  c8:	48 66 04 08 	ldw 204(r3),r6
  cc:	48 65 04 10 	ldw 208(r3),r5
  d0:	48 64 04 18 	ldw 20c(r3),r4
  d4:	34 7e 00 80 	ldo 40(r3),sp
  d8:	e8 40 c0 00 	bv r0(rp)
  dc:	4f c3 3f 81 	ldw,mb -40(sp),r3

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From - Thu Nov 08 21:05:04 2018
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> 
> I started to look into the problem why we get the
> > WARNING: Out of order unwind entry!
> warning messages at kernel bootup in dmesg.
> 
> It's related to a binutils/linker bug, that ld does not correctly
> removes unlink information for unused weak symbols, which have been
> replaced by their non-weak ones.
> 
> In my kernel I could track it down to 2 symbols:
> - arch_mod_section_prepend()  from kernel/module.c, and
> - save_stack_trace_tsk().
> 
> Here is the extract of the readelf output on vmlinux:
> ...
> <inb>: [0x1011fbd4-0x1011fc48]
>          Entry_GR=1 Save_SP Save_RP Total_frame_size=8
> <arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
>          Entry_GR=1 Save_SP Total_frame_size=8
> <arch_mod_section_prepend>: [0x1011fc4c-0x10167cf4]
>          Entry_GR=1 Save_SP Total_frame_size=8
> <module_arch_cleanup>: [0x1011fc78-0x1011fcb8]
>          Entry_GR=2 Save_SP Save_RP Total_frame_size=8
> ...

It might be useful to know the actual location arch_mod_section_prepend
and whether it follows inb in its .o.  From my understanding of things,
it shouldn't be necessary to remove the unwind info for unused weak
symbols if they aren't garbage collected.  A simple testcase would
be helpful.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [PATCH] parisc: fix unwind
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On Sun, Oct 25, 2009 at 10:42:48PM +0100, Helge Deller wrote:
> kernel unwinding is broken with gcc >= 4.x. Part of the problem is, that
> binutils seems sensible where the unwind information is stored.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 

This looks good to me, I checked the resulting vmlinux and things seem
sensible...

I'll apply it to my next branch when I get home tonight.

r, Kyle
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On Wed, Oct 28, 2009 at 11:37:25AM -0400, Kyle McMartin wrote:
> On Sun, Oct 25, 2009 at 10:42:48PM +0100, Helge Deller wrote:
> > kernel unwinding is broken with gcc >= 4.x. Part of the problem is, that
> > binutils seems sensible where the unwind information is stored.
> > 
> > Signed-off-by: Helge Deller <deller@gmx.de>
> > 
> 
> This looks good to me, I checked the resulting vmlinux and things seem
> sensible...
> 
> I'll apply it to my next branch when I get home tonight.
> 

I meant fixes.
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On 10/28/2009 12:19 AM, John David Anglin wrote:
>>
>> I started to look into the problem why we get the
>>> WARNING: Out of order unwind entry!
>> warning messages at kernel bootup in dmesg.
>>
>> It's related to a binutils/linker bug, that ld does not correctly
>> removes unlink information for unused weak symbols, which have been
>> replaced by their non-weak ones.
>>
>> In my kernel I could track it down to 2 symbols:
>> - arch_mod_section_prepend()  from kernel/module.c, and
>> - save_stack_trace_tsk().
>>
>> Here is the extract of the readelf output on vmlinux:
>> ...
>> <inb>: [0x1011fbd4-0x1011fc48]
>>           Entry_GR=1 Save_SP Save_RP Total_frame_size=8
>> <arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
>>           Entry_GR=1 Save_SP Total_frame_size=8
>> <arch_mod_section_prepend>: [0x1011fc4c-0x10167cf4]
>>           Entry_GR=1 Save_SP Total_frame_size=8
>> <module_arch_cleanup>: [0x1011fc78-0x1011fcb8]
>>           Entry_GR=2 Save_SP Save_RP Total_frame_size=8
>> ...
>
> It might be useful to know the actual location arch_mod_section_prepend
> and whether it follows inb in its .o.  From my understanding of things,
> it shouldn't be necessary to remove the unwind info for unused weak
> symbols if they aren't garbage collected.  A simple testcase would
> be helpful.

arch_mod_section_prepend() is here:
* arch/parisc/kernel/module.c  - non-weak function
* kernel/module.c - weak function

inb() is not defined in arch/parisc/kernel/module.c.
But during kernel build, all object files in arch/parisc/kernel/*.o are
linked together into arch/parisc/kernel/built-in.o:

Running readelf: "hppa-linux-readelf -u arch/parisc/kernel/built-in.o" gives:
...
<inb>: [0x0-0xe8]
         Entry_GR=1 Save_SP Save_RP Total_frame_size=8
<arch_mod_section_prepend>: [0x0-0x50]
         Entry_GR=1 Save_SP Total_frame_size=8
<module_arch_cleanup>: [0x0-0x80]
         Entry_GR=2 Save_SP Save_RP Total_frame_size=8

So, yes, the non-weak arch_mod_section_prepend() function follows the inb()
function in the object file (and in the final vmlinux file as well).

>> <arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
>>           Entry_GR=1 Save_SP Total_frame_size=8
>> <arch_mod_section_prepend>: [0x1011fc4c-0x10167cf4]
>>           Entry_GR=1 Save_SP Total_frame_size=8

The first entry is the non-weak one.
The second entry is the remaining part of the weak (dropped) function.
It seems only the start address was changed to the start address of the non-weak
function, while the end address has been kept unchanged.
[0x1011fc4c-0x10167cf4] would mean, that the weak function would be 295KB in size...?

Helge
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Hi Dave,

> On 10/28/2009 12:19 AM, John David Anglin wrote:
>> From my understanding of things, it shouldn't be necessary to remove the
>>unwind info for unused weak  symbols if they aren't garbage collected.

What do you mean with "garbage collected" ?  "dropped from the executable" ?
AFAICS, the weak function was completely dropped from the vmlinux file.

Some more info:
The unwind function in the parisc linux kernel walks the (sorted!) unwind list.
If one entry is wrong this can lead to incorrect unwinding.

In this case:

<arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]   - non-weak function
           Entry_GR=1 Save_SP Total_frame_size=8
<arch_mod_section_prepend>: [0x1011fc4c-0x10167cf4]  - weak function
           Entry_GR=1 Save_SP Total_frame_size=8
<module_arch_cleanup>: [0x1011fc78-0x1011fcb8]
           Entry_GR=2 Save_SP Save_RP Total_frame_size=8

I see a those options:
a) drop the second (weak) unwind info entry
b) for the weak function, use the same start- and end-addresses as the non-weak entry.

Option b) would probably need some adjustments to the existing parisc
specific unwind function.

Helge
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> On 10/28/2009 12:19 AM, John David Anglin wrote:
> >>
> >> I started to look into the problem why we get the
> >>> WARNING: Out of order unwind entry!
> >> warning messages at kernel bootup in dmesg.
> >>
> >> It's related to a binutils/linker bug, that ld does not correctly
> >> removes unlink information for unused weak symbols, which have been
> >> replaced by their non-weak ones.
> >>
> >> In my kernel I could track it down to 2 symbols:
> >> - arch_mod_section_prepend()  from kernel/module.c, and
> >> - save_stack_trace_tsk().
> >>
> >> Here is the extract of the readelf output on vmlinux:
> >> ...
> >> <inb>: [0x1011fbd4-0x1011fc48]
> >>           Entry_GR=1 Save_SP Save_RP Total_frame_size=8
> >> <arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
> >>           Entry_GR=1 Save_SP Total_frame_size=8
> >> <arch_mod_section_prepend>: [0x1011fc4c-0x10167cf4]
> >>           Entry_GR=1 Save_SP Total_frame_size=8
> >> <module_arch_cleanup>: [0x1011fc78-0x1011fcb8]
> >>           Entry_GR=2 Save_SP Save_RP Total_frame_size=8
> >> ...
> >
> > It might be useful to know the actual location arch_mod_section_prepend
> > and whether it follows inb in its .o.  From my understanding of things,
> > it shouldn't be necessary to remove the unwind info for unused weak
> > symbols if they aren't garbage collected.  A simple testcase would
> > be helpful.
> 
> arch_mod_section_prepend() is here:
> * arch/parisc/kernel/module.c  - non-weak function
> * kernel/module.c - weak function
> 
> inb() is not defined in arch/parisc/kernel/module.c.
> But during kernel build, all object files in arch/parisc/kernel/*.o are
> linked together into arch/parisc/kernel/built-in.o:
> 
> Running readelf: "hppa-linux-readelf -u arch/parisc/kernel/built-in.o" gives:
> ...
> <inb>: [0x0-0xe8]
>          Entry_GR=1 Save_SP Save_RP Total_frame_size=8
> <arch_mod_section_prepend>: [0x0-0x50]
>          Entry_GR=1 Save_SP Total_frame_size=8
> <module_arch_cleanup>: [0x0-0x80]
>          Entry_GR=2 Save_SP Save_RP Total_frame_size=8
> 
> So, yes, the non-weak arch_mod_section_prepend() function follows the inb()
> function in the object file (and in the final vmlinux file as well).
> 
> >> <arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
> >>           Entry_GR=1 Save_SP Total_frame_size=8
> >> <arch_mod_section_prepend>: [0x1011fc4c-0x10167cf4]
> >>           Entry_GR=1 Save_SP Total_frame_size=8
> 
> The first entry is the non-weak one.
> The second entry is the remaining part of the weak (dropped) function.
> It seems only the start address was changed to the start address of the non-weak
> function, while the end address has been kept unchanged.
> [0x1011fc4c-0x10167cf4] would mean, that the weak function would be 295KB in size...?

If you run readelf on built-in.o, is the problem present there?

Does this happen with both 32 and 64 bit kernels?

Need to figure out why the start address of the weak function is
the same as the non-weak function.  My initial guess is that
RELOC_FOR_GLOBAL_SYMBOL is messing up.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:04 2018
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On 10/28/2009 11:18 PM, John David Anglin wrote:
>> On 10/28/2009 12:19 AM, John David Anglin wrote:
>>>>
>>>> I started to look into the problem why we get the
>>>>> WARNING: Out of order unwind entry!
>>>> warning messages at kernel bootup in dmesg.
>>>>
>>>> It's related to a binutils/linker bug, that ld does not correctly
>>>> removes unlink information for unused weak symbols, which have been
>>>> replaced by their non-weak ones.
>>>>
>>>> In my kernel I could track it down to 2 symbols:
>>>> - arch_mod_section_prepend()  from kernel/module.c, and
>>>> - save_stack_trace_tsk().
>>>>
>>>> Here is the extract of the readelf output on vmlinux:
>>>> ...
>>>> <inb>: [0x1011fbd4-0x1011fc48]
>>>>            Entry_GR=1 Save_SP Save_RP Total_frame_size=8
>>>> <arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
>>>>            Entry_GR=1 Save_SP Total_frame_size=8
>>>> <arch_mod_section_prepend>: [0x1011fc4c-0x10167cf4]
>>>>            Entry_GR=1 Save_SP Total_frame_size=8
>>>> <module_arch_cleanup>: [0x1011fc78-0x1011fcb8]
>>>>            Entry_GR=2 Save_SP Save_RP Total_frame_size=8
>>>> ...
>>>
>>> It might be useful to know the actual location arch_mod_section_prepend
>>> and whether it follows inb in its .o.  From my understanding of things,
>>> it shouldn't be necessary to remove the unwind info for unused weak
>>> symbols if they aren't garbage collected.  A simple testcase would
>>> be helpful.
>>
>> arch_mod_section_prepend() is here:
>> * arch/parisc/kernel/module.c  - non-weak function
>> * kernel/module.c - weak function
>>
>> inb() is not defined in arch/parisc/kernel/module.c.
>> But during kernel build, all object files in arch/parisc/kernel/*.o are
>> linked together into arch/parisc/kernel/built-in.o:
>>
>> Running readelf: "hppa-linux-readelf -u arch/parisc/kernel/built-in.o" gives:
>> ...
>> <inb>: [0x0-0xe8]
>>           Entry_GR=1 Save_SP Save_RP Total_frame_size=8
>> <arch_mod_section_prepend>: [0x0-0x50]
>>           Entry_GR=1 Save_SP Total_frame_size=8
>> <module_arch_cleanup>: [0x0-0x80]
>>           Entry_GR=2 Save_SP Save_RP Total_frame_size=8
>>
>> So, yes, the non-weak arch_mod_section_prepend() function follows the inb()
>> function in the object file (and in the final vmlinux file as well).
>>
>>>> <arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
>>>>            Entry_GR=1 Save_SP Total_frame_size=8
>>>> <arch_mod_section_prepend>: [0x1011fc4c-0x10167cf4]
>>>>            Entry_GR=1 Save_SP Total_frame_size=8
>>
>> The first entry is the non-weak one.
>> The second entry is the remaining part of the weak (dropped) function.
>> It seems only the start address was changed to the start address of the non-weak
>> function, while the end address has been kept unchanged.
>> [0x1011fc4c-0x10167cf4] would mean, that the weak function would be 295KB in size...?
>
> If you run readelf on built-in.o, is the problem present there?

No. Since built-in.o is just an intermediate file, offset starts at 0x0.
<arch_mod_section_prepend>: [0x0-0x50]
         Entry_GR=1 Save_SP Total_frame_size=8
-> seems correct.

> Does this happen with both 32 and 64 bit kernels?

Yes.

> Need to figure out why the start address of the weak function is
> the same as the non-weak function.  My initial guess is that
> RELOC_FOR_GLOBAL_SYMBOL is messing up.

Helge
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This is a multi-part message in MIME format.
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On 10/28/2009 11:43 PM, Helge Deller wrote:
> On 10/28/2009 11:18 PM, John David Anglin wrote:
>>>> and whether it follows inb in its .o. From my understanding of things,
>>>> it shouldn't be necessary to remove the unwind info for unused weak
>>>> symbols if they aren't garbage collected. A simple testcase would
>>>> be helpful.

Attached is a testcase (t1.c and t2.c):
t1.c contains weak function f().
t2.c contains non-weak function f().

hppa-linux-gcc -c t1.c t2.c
hppa-linux-ld -r -o all.o t1.o t2.o

hppa-linux-readelf -s t1.o gives:
Symbol table '.symtab' contains 10 entries:
    Num:    Value  Size Type    Bind   Vis      Ndx Name
      6: 00000000    28 FUNC    GLOBAL DEFAULT    1 a
      7: 0000001c    32 FUNC    WEAK   DEFAULT    1 f
      8: 0000003c    28 FUNC    GLOBAL DEFAULT    1 z
      9: 00000058    80 FUNC    GLOBAL DEFAULT    1 main

hppa-linux-readelf -s t2.o  gives:
Symbol table '.symtab' contains 7 entries:
    Num:    Value  Size Type    Bind   Vis      Ndx Name
      6: 00000000    32 FUNC    GLOBAL DEFAULT    1 f

hppa-linux-readelf -s all.o  gives:
Symbol table '.symtab' contains 11 entries:
    Num:    Value  Size Type    Bind   Vis      Ndx Name
      7: 00000000    32 FUNC    GLOBAL DEFAULT    3 f
      8: 0000003c    28 FUNC    GLOBAL DEFAULT    1 z
      9: 00000058    80 FUNC    GLOBAL DEFAULT    1 main
     10: 00000000    28 FUNC    GLOBAL DEFAULT    1 a


hppa-linux-readelf -u all.o  gives:
Unwind section '.PARISC.unwind' at offset 0xfc contains 5 entries:
<a>: [0x0-0x30]
         Entry_GR=1 Save_SP Total_frame_size=8
<f>: [0x0-0x70]
         Entry_GR=1 Save_SP Total_frame_size=8
<z>: [0x3c-0xa8]
         Entry_GR=1 Save_SP Total_frame_size=8
<main>: [0x58-0x148]
         Entry_GR=2 Save_SP Save_RP Total_frame_size=8
<f>: [0x0-0x38]
         Entry_GR=1 Save_SP Total_frame_size=8

Function f() is listed twice and with different lengths.
Sadly in this example f() starts at offset 0. I think if you tweak
the example, try to see what you get when the start of f() is not zero.

Helge
/who has to run now...

--------------030008020803030801040609
Content-Type: text/plain;
 name="t1.c"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="t1.c"

int a(void)
{
	return 1;
}

int __attribute__((weak)) f(int x)
{
	return 0;
}

int z(void)
{
	return 2;
}

int main(void)
{
	return a() + f(0) + z();
}

--------------030008020803030801040609
Content-Type: text/plain;
 name="t2.c"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="t2.c"

int f(int x)
{
	return 500;
}

--------------030008020803030801040609--
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From - Thu Nov 08 21:05:04 2018
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Subject: Re: Out of order unwind entry warning
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> Hi Dave,
> 
> > On 10/28/2009 12:19 AM, John David Anglin wrote:
> >> From my understanding of things, it shouldn't be necessary to remove the
> >>unwind info for unused weak  symbols if they aren't garbage collected.
> 
> What do you mean with "garbage collected" ?  "dropped from the executable" ?
> AFAICS, the weak function was completely dropped from the vmlinux file.

Yes, I mean "dropped from the executable".  Dropping weak functions
is trickier than just leaving them in place.  It is easier to just
adjust the linkage.  The default behavior of HP ld is to leave unused
functions.  Don't know about GNU ld.  If GNU ld drops unused weak
functions, then the PARISC.unwind entries for them need to be removed.

> Some more info:
> The unwind function in the parisc linux kernel walks the (sorted!) unwind list.
> If one entry is wrong this can lead to incorrect unwinding.
> 
> In this case:
> 
> <arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]   - non-weak function
>            Entry_GR=1 Save_SP Total_frame_size=8
> <arch_mod_section_prepend>: [0x1011fc4c-0x10167cf4]  - weak function
>            Entry_GR=1 Save_SP Total_frame_size=8
> <module_arch_cleanup>: [0x1011fc78-0x1011fcb8]
>            Entry_GR=2 Save_SP Save_RP Total_frame_size=8
> 
> I see a those options:
> a) drop the second (weak) unwind info entry
> b) for the weak function, use the same start- and end-addresses as the non-weak entry.
> 
> Option b) would probably need some adjustments to the existing parisc
> specific unwind function.

I'm not keen about b).  From looking at one of my builds, it does indeed
look like the weak version of arch_mod_section_prepend has been dropped
(can only find one copy with objdump).

Do you know if linux uses the --gc-sections ld option?  This together
with the GCC -function-sections option might contribute to this problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:04 2018
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Subject: Re: Out of order unwind entry warning
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On Wed, 28 Oct 2009, Helge Deller wrote:

> On 10/28/2009 11:43 PM, Helge Deller wrote:
>> On 10/28/2009 11:18 PM, John David Anglin wrote:
>>>>> and whether it follows inb in its .o. From my understanding of things,
>>>>> it shouldn't be necessary to remove the unwind info for unused weak
>>>>> symbols if they aren't garbage collected. A simple testcase would
>>>>> be helpful.
>
> Attached is a testcase (t1.c and t2.c):
> t1.c contains weak function f().
> t2.c contains non-weak function f().
>
> hppa-linux-gcc -c t1.c t2.c
> hppa-linux-ld -r -o all.o t1.o t2.o
>
> hppa-linux-readelf -s t1.o gives:
> Symbol table '.symtab' contains 10 entries:
>    Num:    Value  Size Type    Bind   Vis      Ndx Name
>      6: 00000000    28 FUNC    GLOBAL DEFAULT    1 a
>      7: 0000001c    32 FUNC    WEAK   DEFAULT    1 f
>      8: 0000003c    28 FUNC    GLOBAL DEFAULT    1 z
>      9: 00000058    80 FUNC    GLOBAL DEFAULT    1 main
>
> hppa-linux-readelf -s t2.o  gives:
> Symbol table '.symtab' contains 7 entries:
>    Num:    Value  Size Type    Bind   Vis      Ndx Name
>      6: 00000000    32 FUNC    GLOBAL DEFAULT    1 f
>
> hppa-linux-readelf -s all.o  gives:
> Symbol table '.symtab' contains 11 entries:
>    Num:    Value  Size Type    Bind   Vis      Ndx Name
>      7: 00000000    32 FUNC    GLOBAL DEFAULT    3 f
>      8: 0000003c    28 FUNC    GLOBAL DEFAULT    1 z
>      9: 00000058    80 FUNC    GLOBAL DEFAULT    1 main
>     10: 00000000    28 FUNC    GLOBAL DEFAULT    1 a
>
>
> hppa-linux-readelf -u all.o  gives:
> Unwind section '.PARISC.unwind' at offset 0xfc contains 5 entries:
> <a>: [0x0-0x30]
>         Entry_GR=1 Save_SP Total_frame_size=8
> <f>: [0x0-0x70]
>         Entry_GR=1 Save_SP Total_frame_size=8
> <z>: [0x3c-0xa8]
>         Entry_GR=1 Save_SP Total_frame_size=8
> <main>: [0x58-0x148]
>         Entry_GR=2 Save_SP Save_RP Total_frame_size=8
> <f>: [0x0-0x38]
>         Entry_GR=1 Save_SP Total_frame_size=8
>
> Function f() is listed twice and with different lengths.
> Sadly in this example f() starts at offset 0. I think if you tweak
> the example, try to see what you get when the start of f() is not zero.

Looking at all.o with objdump, the code for <f> is still present.
I would say the regions should be:

<a>: [0x0-0x18]
<f>: [0x1c-0x38]
<z>: [0x3c-0x54]
<main>: [0x58-0xa4]
<f>: [0x0-0x1c]

There are two .text sections, so the offsets for the second <f>
are relative to the start of this section.

My compilation probably differs a bit from yours but I see the same
readelf -u output.  Suspect readelf is broken.  The end values seem
off by a factor 2.

Need to see why start for first <f> is wrong and what happens in final link.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: Out of order unwind entry warning
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On Wed, Oct 28, 2009 at 6:00 PM, Helge Deller <deller@gmx.de> wrote:
> I see a those options:
> a) drop the second (weak) unwind info entry
> b) for the weak function, use the same start- and end-addresses as the
> non-weak entry.
>
> Option b) would probably need some adjustments to the existing parisc
> specific unwind function.

FWIW I think option (a) is the best option.

Yes, the linker doesn't even consider the weak function when building
the final executable, I don't know why an unwind entry is kept for it.

Be aware that --gc-sections can cause similar problems in unwind
information on other targets, so it might also be an issue for PARISC.

Thanks for the good work so far!

Cheers,
Carlos.
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Subject: Re: Out of order unwind entry warning
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On Wed, 28 Oct 2009, John David Anglin wrote:

> On Wed, 28 Oct 2009, Helge Deller wrote:
> 
> > On 10/28/2009 11:43 PM, Helge Deller wrote:
> >> On 10/28/2009 11:18 PM, John David Anglin wrote:
> >>>>> and whether it follows inb in its .o. From my understanding of things,
> >>>>> it shouldn't be necessary to remove the unwind info for unused weak
> >>>>> symbols if they aren't garbage collected. A simple testcase would
> >>>>> be helpful.
> >
> > Attached is a testcase (t1.c and t2.c):
> > t1.c contains weak function f().
> > t2.c contains non-weak function f().
> >
> > hppa-linux-gcc -c t1.c t2.c
> > hppa-linux-ld -r -o all.o t1.o t2.o
> >
> > hppa-linux-readelf -s t1.o gives:
> > Symbol table '.symtab' contains 10 entries:
> >    Num:    Value  Size Type    Bind   Vis      Ndx Name
> >      6: 00000000    28 FUNC    GLOBAL DEFAULT    1 a
> >      7: 0000001c    32 FUNC    WEAK   DEFAULT    1 f
> >      8: 0000003c    28 FUNC    GLOBAL DEFAULT    1 z
> >      9: 00000058    80 FUNC    GLOBAL DEFAULT    1 main
> >
> > hppa-linux-readelf -s t2.o  gives:
> > Symbol table '.symtab' contains 7 entries:
> >    Num:    Value  Size Type    Bind   Vis      Ndx Name
> >      6: 00000000    32 FUNC    GLOBAL DEFAULT    1 f
> >
> > hppa-linux-readelf -s all.o  gives:
> > Symbol table '.symtab' contains 11 entries:
> >    Num:    Value  Size Type    Bind   Vis      Ndx Name
> >      7: 00000000    32 FUNC    GLOBAL DEFAULT    3 f
> >      8: 0000003c    28 FUNC    GLOBAL DEFAULT    1 z
> >      9: 00000058    80 FUNC    GLOBAL DEFAULT    1 main
> >     10: 00000000    28 FUNC    GLOBAL DEFAULT    1 a
> >
> >
> > hppa-linux-readelf -u all.o  gives:
> > Unwind section '.PARISC.unwind' at offset 0xfc contains 5 entries:
> > <a>: [0x0-0x30]
> >         Entry_GR=1 Save_SP Total_frame_size=8
> > <f>: [0x0-0x70]
> >         Entry_GR=1 Save_SP Total_frame_size=8
> > <z>: [0x3c-0xa8]
> >         Entry_GR=1 Save_SP Total_frame_size=8
> > <main>: [0x58-0x148]
> >         Entry_GR=2 Save_SP Save_RP Total_frame_size=8
> > <f>: [0x0-0x38]
> >         Entry_GR=1 Save_SP Total_frame_size=8
> >
> > Function f() is listed twice and with different lengths.
> > Sadly in this example f() starts at offset 0. I think if you tweak
> > the example, try to see what you get when the start of f() is not zero.
> 
> Looking at all.o with objdump, the code for <f> is still present.
> I would say the regions should be:
> 
> <a>: [0x0-0x18]
> <f>: [0x1c-0x38]
> <z>: [0x3c-0x54]
> <main>: [0x58-0xa4]
> <f>: [0x0-0x1c]
> 
> There are two .text sections, so the offsets for the second <f>
> are relative to the start of this section.
> 
> My compilation probably differs a bit from yours but I see the same
> readelf -u output.  Suspect readelf is broken.  The end values seem
> off by a factor 2.

readelf -u is definitely broken when used on an object without
program headers.

However, I think we are creating trouble for ourself by using the
function's symbol name for the start offset in the unwind table:

Relocation section '.rela.PARISC.unwind' at offset 0x3d8 contains 10 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
00000000  00000a31 R_PARISC_SEGREL32 00000000   a + 0
00000004  00000131 R_PARISC_SEGREL32 00000000   .text + 18
00000010  00000731 R_PARISC_SEGREL32 00000000   f + 0
00000014  00000131 R_PARISC_SEGREL32 00000000   .text + 38
00000020  00000831 R_PARISC_SEGREL32 0000003c   z + 0
00000024  00000131 R_PARISC_SEGREL32 00000000   .text + 54
00000030  00000931 R_PARISC_SEGREL32 00000058   main + 0
00000034  00000131 R_PARISC_SEGREL32 00000000   .text + a4
00000040  00000731 R_PARISC_SEGREL32 00000000   f + 0
00000044  00000231 R_PARISC_SEGREL32 00000000   .text + 1c

I think the assembler needs to be changed to use local symbols for the
start that will be reduced to section offsets.  This should prevent
the problem with wrong ranges.  However, there may be issues with
finding the symbol associated with a range in readelf, etc.

Thoughts?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: Out of order unwind entry warning
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On Wed, 28 Oct 2009, Helge Deller wrote:

> On 10/28/2009 11:43 PM, Helge Deller wrote:
>> On 10/28/2009 11:18 PM, John David Anglin wrote:
>>>>> and whether it follows inb in its .o. From my understanding of things,
>>>>> it shouldn't be necessary to remove the unwind info for unused weak
>>>>> symbols if they aren't garbage collected. A simple testcase would
>>>>> be helpful.
>
> Attached is a testcase (t1.c and t2.c):
> t1.c contains weak function f().
> t2.c contains non-weak function f().
>
> hppa-linux-gcc -c t1.c t2.c
> hppa-linux-ld -r -o all.o t1.o t2.o

Attached is a patch for gas that seems to produce reasonable
unwind info for the testcase when all.o is linked into a final
executable.  I think it will fix the linux unwind problem.

Still need to look at readelf -u on .o's.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="tc-hppa.c.d"

Index: config/tc-hppa.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-hppa.c,v
retrieving revision 1.145
diff -u -3 -p -r1.145 tc-hppa.c
--- config/tc-hppa.c	24 Jul 2009 11:45:00 -0000	1.145
+++ config/tc-hppa.c	29 Oct 2009 18:37:39 -0000
@@ -5961,13 +5961,41 @@ pa_build_unwind_subspace (struct call_in
   subsegT save_subseg;
   unsigned int unwind;
   int reloc;
-  char *p;
+  char *name, *p;
+  symbolS *symbolP;
 
   if ((bfd_get_section_flags (stdoutput, now_seg)
        & (SEC_ALLOC | SEC_LOAD | SEC_READONLY))
       != (SEC_ALLOC | SEC_LOAD | SEC_READONLY))
     return;
 
+  /* Replace the start symbol with a local symbol that will be reduced
+     to a section offset.  This avoids problems with weak functions with
+     multiple definitions, etc.  */
+  name = xmalloc (strlen ("L$\001start_")
+		  + strlen (S_GET_NAME (call_info->start_symbol))
+		  + 1);
+  strcpy (name, "L$\001start_");
+  strcat (name, S_GET_NAME (call_info->start_symbol));
+
+  /* If we have a .procend preceded by a .exit, then the symbol will have
+     already been defined.  In that case, we don't want another unwind
+     entry.  */
+  symbolP = symbol_find (name);
+  if (symbolP)
+    {
+      xfree (name);
+      return;
+    }
+  else
+    {
+      symbolP = symbol_new (name, now_seg,
+			    S_GET_VALUE (call_info->start_symbol), frag_now);
+      gas_assert (symbolP);
+      S_CLEAR_EXTERNAL (symbolP);
+      symbol_table_insert (symbolP);
+    }
+
   reloc = R_PARISC_SEGREL32;
   save_seg = now_seg;
   save_subseg = now_subseg;
@@ -5993,7 +6021,7 @@ pa_build_unwind_subspace (struct call_in
   /* Relocation info. for start offset of the function.  */
   md_number_to_chars (p, 0, 4);
   fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
-		call_info->start_symbol, (offsetT) 0,
+		symbolP, (offsetT) 0,
 		(expressionS *) NULL, 0, reloc,
 		e_fsel, 32, 0, 0);
 

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On 10/29/2009 08:16 PM, John David Anglin wrote:
> On Wed, 28 Oct 2009, Helge Deller wrote:
>
>> On 10/28/2009 11:43 PM, Helge Deller wrote:
>>> On 10/28/2009 11:18 PM, John David Anglin wrote:
>>>>>> and whether it follows inb in its .o. From my understanding of things,
>>>>>> it shouldn't be necessary to remove the unwind info for unused weak
>>>>>> symbols if they aren't garbage collected. A simple testcase would
>>>>>> be helpful.
>>
>> Attached is a testcase (t1.c and t2.c):
>> t1.c contains weak function f().
>> t2.c contains non-weak function f().
>>
>> hppa-linux-gcc -c t1.c t2.c
>> hppa-linux-ld -r -o all.o t1.o t2.o
>
> Attached is a patch for gas that seems to produce reasonable
> unwind info for the testcase when all.o is linked into a final
> executable.  I think it will fix the linux unwind problem.

Hi Dave,

Yes, this patch fixes the problem for vmlinux :-)
Just tested it with a 32bit  kernel build.

> Still need to look at readelf -u on .o's.

Yes, I see this too. readelf -u doesn't print any longer the second line of:
<arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
           Entry_GR=1 Save_SP Total_frame_size=8

Thanks!

Helge
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On 10/29/2009 12:10 AM, John David Anglin wrote:
> Do you know if linux uses the --gc-sections ld option?  This together
> with the GCC -function-sections option might contribute to this problem.

The --gc-sections ld option is not used.
gcc's -function-sections is used.

Helge
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> > Still need to look at readelf -u on .o's.
> 
> Yes, I see this too. readelf -u doesn't print any longer the second line of:
> <arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
>            Entry_GR=1 Save_SP Total_frame_size=8

Actually, the entries are still there.  For weak functions that
are not used, they appear as "<foo+x>:" where foo is the closest
preceding symbol before the unused weak function.  In practice,
the code shouldn't be entered, so the lack of an associated function
symbol shouldn't matter.

I have a fix for the readelf -u bug.  See below.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: readelf.c
===================================================================
RCS file: /cvs/src/src/binutils/readelf.c,v
retrieving revision 1.467
diff -u -3 -p -r1.467 readelf.c
--- readelf.c	23 Oct 2009 00:15:07 -0000	1.467
+++ readelf.c	29 Oct 2009 20:59:26 -0000
@@ -5589,11 +5589,11 @@ slurp_hppa_unwind_table (FILE * file,
 	    {
 	    case 0:
 	      aux->table[i].start.section = sym->st_shndx;
-	      aux->table[i].start.offset += sym->st_value + rp->r_addend;
+	      aux->table[i].start.offset  = sym->st_value + rp->r_addend;
 	      break;
 	    case 1:
 	      aux->table[i].end.section   = sym->st_shndx;
-	      aux->table[i].end.offset   += sym->st_value + rp->r_addend;
+	      aux->table[i].end.offset    = sym->st_value + rp->r_addend;
 	      break;
 	    default:
 	      break;
--
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Subject: [PATCH] parisc: use sort() instead of home-made implementation
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Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 69dad5a..e5a4390 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/kallsyms.h>
+#include <linux/sort.h>
 
 #include <asm/uaccess.h>
 #include <asm/assembly.h>
@@ -115,24 +116,21 @@ unwind_table_init(struct unwind_table *table, const char *name,
 	}
 }
 
+static int cmp_unwind_table_entry(const void *a, const void *b)
+{
+	return ((const struct unwind_table_entry *)a)->region_start
+	     - ((const struct unwind_table_entry *)b)->region_start;
+}
+
 static void
 unwind_table_sort(struct unwind_table_entry *start,
 		  struct unwind_table_entry *finish)
 {
-	struct unwind_table_entry el, *p, *q;

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On 10/29/2009 10:07 PM, John David Anglin wrote:
>>> Still need to look at readelf -u on .o's.
>>
>> Yes, I see this too. readelf -u doesn't print any longer the second line of:
>> <arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
>>             Entry_GR=1 Save_SP Total_frame_size=8
>
> Actually, the entries are still there.  For weak functions that
> are not used, they appear as "<foo+x>:" where foo is the closest
> preceding symbol before the unused weak function.  In practice,
> the code shouldn't be entered, so the lack of an associated function
> symbol shouldn't matter.
>
> I have a fix for the readelf -u bug.  See below.

Sorry, but I don't fully understand...

With your patch to gas, the unwind info for the weak functions are completely gone in the final executable (which is good).

But "readelf -u" doesn't show the "Entry_GR=..." lines for _any_ function any longer (in the final executable).
I really mean _all_ functions, weak, non-weak, standard, ...
The patch you attached only changes the start and end addresses of the symbols...?

Helge
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Subject: Re: Out of order unwind entry warning
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> 
> On 10/29/2009 10:07 PM, John David Anglin wrote:
> >>> Still need to look at readelf -u on .o's.
> >>
> >> Yes, I see this too. readelf -u doesn't print any longer the second line of:
> >> <arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
> >>             Entry_GR=1 Save_SP Total_frame_size=8
> >
> > Actually, the entries are still there.  For weak functions that
> > are not used, they appear as "<foo+x>:" where foo is the closest
> > preceding symbol before the unused weak function.  In practice,
> > the code shouldn't be entered, so the lack of an associated function
> > symbol shouldn't matter.
> >
> > I have a fix for the readelf -u bug.  See below.
> 
> Sorry, but I don't fully understand...
> 
> With your patch to gas, the unwind info for the weak functions are completely gone in the final executable (which is good).

I don't think I changed this.  In the testcase that you sent, I see

<a>: [0x104a0-0x104b8]
        Entry_GR=1 Save_SP Total_frame_size=8 
<a+1c>: [0x104bc-0x104d8]
	Entry_GR=1 Save_SP Total_frame_size=8 
<z>: [0x104dc-0x104f4]
	Entry_GR=1 Save_SP Total_frame_size=8 
<main>: [0x104f8-0x10544]
	Entry_GR=1 Save_SP Total_frame_size=8 
<f>: [0x10548-0x10564]
	Entry_GR=2 Save_SP Save_RP Total_frame_size=8 

The weak version of f is the <a+1c> entry.

> But "readelf -u" doesn't show the "Entry_GR=..." lines for _any_ function any longer (in the final executable).
> I really mean _all_ functions, weak, non-weak, standard, ...

That's not what I'm seeing.  The old and new versions seem similar
(i.e., with respect to missing "Entry_GR=...").  Didn't touch the
code that extracts and prints this stuff.

The lack of "Entry_GR=..." stuff for an entry probably indicates
that there isn't a .CALLINFO directive for the function in question.
This could happen if the function is handcoded assembler.  However,
it is legitimate for a function not to have any of the unwind stuff
set (e.g., function doesn't save any registers or allocate a frame).
I think GCC gets this right but it never has been looked at with a
magnifying glass.

> The patch you attached only changes the start and end addresses of the symbols...?

Yes, and only for .o's.  In final executables, there are no relocations
in the .PARISC.unwind section.  So, the values printed should be unaffected.

In the .o case, the code was in effect doing the SEGREL relocation twice
leading to offsets twice as big as they should have been.  It still runs
through the relocations if present, but uses the value from doing the
relocation if one is present.  Compare what you see now with objdump -d
and readelf -u on a .o.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:05 2018
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [PATCH] parisc: use sort() instead of home-made implementation
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Helge Deller wrote:
> Signed-off-by: Helge Deller <deller@gmx.de>

Excellent. sort() was not there when this was coded up, but always good 
to stop replicating code :)

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

randolph

> 
> 
> diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
> index 69dad5a..e5a4390 100644
> --- a/arch/parisc/kernel/unwind.c
> +++ b/arch/parisc/kernel/unwind.c
> @@ -13,6 +13,7 @@
>  #include <linux/sched.h>
>  #include <linux/slab.h>
>  #include <linux/kallsyms.h>
> +#include <linux/sort.h>
>  
>  #include <asm/uaccess.h>
>  #include <asm/assembly.h>
> @@ -115,24 +116,21 @@ unwind_table_init(struct unwind_table *table, const char *name,
>  	}
>  }
>  
> +static int cmp_unwind_table_entry(const void *a, const void *b)
> +{
> +	return ((const struct unwind_table_entry *)a)->region_start
> +	     - ((const struct unwind_table_entry *)b)->region_start;
> +}
> +
>  static void
>  unwind_table_sort(struct unwind_table_entry *start,
>  		  struct unwind_table_entry *finish)
>  {
> -	struct unwind_table_entry el, *p, *q;
> -
> -	for (p = start + 1; p < finish; ++p) {
> -		if (p[0].region_start < p[-1].region_start) {
> -			el = *p;
> -			q = p;
> -			do {
> -				q[0] = q[-1];
> -				--q;
> -			} while (q > start && 
> -				 el.region_start < q[-1].region_start);
> -			*q = el;
> -		}
> -	}
> +	int len;
> +
> +	len  = (finish - start) / sizeof(struct unwind_table_entry);
> +	sort(start, len, sizeof(struct unwind_table_entry),
> +	     cmp_unwind_table_entry, NULL);
>  }
>  
>  struct unwind_table *

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From - Thu Nov 08 21:05:05 2018
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From: Takashi Iwai <tiwai@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.alsa.devel,gmane.linux.kernel,gmane.linux.kernel.janitors
Subject: Re: [PATCH 3/14] sound/parisc: Move dereference after NULL test
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Cc: Kyle McMartin <kyle@mcmartin.ca>, Jaroslav Kysela <perex@perex.cz>,
	linux-parisc@vger.kernel.org, alsa-devel@alsa-project.org,
	linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
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At Sat, 17 Oct 2009 08:33:47 +0200 (CEST),
Julia Lawall wrote:
> 
> From: Julia Lawall <julia@diku.dk>
> 
> If the NULL test on h is needed in snd_harmony_mixer_init, then the
> dereference should be after the NULL test.
> 
> Actually, there is a sequence of calls: snd_harmony_create, then
> snd_harmony_pcm_init, and then snd_harmony_mixer_init.  snd_harmony_create
> initializes h, but may indeed leave it as NULL.  There was no NULL test at
> the beginning of snd_harmony_pcm_init, so I have added one.  The NULL test
> in snd_harmony_mixer_init is then not necessary, but in case the ordering
> of the calls changes, I have left it, and moved the dereference after it.
> 
> A simplified version of the semantic match that detects this problem is as
> follows (http://coccinelle.lip6.fr/):
> 
> // <smpl>
> @match exists@
> expression x, E;
> identifier fld;
> @@
> 
> * x->fld
>   ... when != \(x = E\|&x\)
> * x == NULL
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>

Applied this one, too.  Thanks.


Takashi


> ---
>  sound/parisc/harmony.c              |    6 +++++-
>  1 files changed, 5 insertions(+), 1 deletions(-)
> 
> diff --git a/sound/parisc/harmony.c b/sound/parisc/harmony.c
> index e924492..f47f9e2 100644
> --- a/sound/parisc/harmony.c
> +++ b/sound/parisc/harmony.c
> @@ -624,6 +624,9 @@ snd_harmony_pcm_init(struct snd_harmony *h)
>  	struct snd_pcm *pcm;
>  	int err;
>  
> +	if (snd_BUG_ON(!h))
> +		return -EINVAL;
> +
>  	harmony_disable_interrupts(h);
>  	
>     	err = snd_pcm_new(h->card, "harmony", 0, 1, 1, &pcm);
> @@ -865,11 +868,12 @@ snd_harmony_mixer_reset(struct snd_harmony *h)
>  static int __devinit
>  snd_harmony_mixer_init(struct snd_harmony *h)
>  {
> -	struct snd_card *card = h->card;
> +	struct snd_card *card;
>  	int idx, err;
>  
>  	if (snd_BUG_ON(!h))
>  		return -EINVAL;
> +	card = h->card;
>  	strcpy(card->mixername, "Harmony Gain control interface");
>  
>  	for (idx = 0; idx < HARMONY_CONTROLS; idx++) {
> 
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.alsa.devel,gmane.linux.kernel,gmane.linux.kernel.janitors
Subject: Re: [PATCH 3/14] sound/parisc: Move dereference after NULL test
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	Jaroslav Kysela <perex@perex.cz>, linux-parisc@vger.kernel.org,
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On Fri, Oct 30, 2009 at 12:02:22PM +0100, Takashi Iwai wrote:
> At Sat, 17 Oct 2009 08:33:47 +0200 (CEST),
> Julia Lawall wrote:
> > 
> > From: Julia Lawall <julia@diku.dk>
> > 
> > Signed-off-by: Julia Lawall <julia@diku.dk>
> 
> Applied this one, too.  Thanks.
> 
> 

Great, thanks Takashi!

cheers, Kyle
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From - Thu Nov 08 21:05:05 2018
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Subject: Re: Out of order unwind entry warning
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On 10/30/2009 12:35 AM, John David Anglin wrote:
>>
>> On 10/29/2009 10:07 PM, John David Anglin wrote:
>>>>> Still need to look at readelf -u on .o's.
>>>>
>>>> Yes, I see this too. readelf -u doesn't print any longer the second line of:
>>>> <arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
>>>>              Entry_GR=1 Save_SP Total_frame_size=8
>>>
>>> Actually, the entries are still there.  For weak functions that
>>> are not used, they appear as "<foo+x>:" where foo is the closest
>>> preceding symbol before the unused weak function.  In practice,
>>> the code shouldn't be entered, so the lack of an associated function
>>> symbol shouldn't matter.
>>>
>>> I have a fix for the readelf -u bug.  See below.
>>
>> Sorry, but I don't fully understand...
>>
>> With your patch to gas, the unwind info for the weak functions are completely gone in the final executable (which is good).
>
> I don't think I changed this.  In the testcase that you sent, I see
>
> <a>: [0x104a0-0x104b8]
>          Entry_GR=1 Save_SP Total_frame_size=8
> <a+1c>: [0x104bc-0x104d8]
> 	Entry_GR=1 Save_SP Total_frame_size=8
> <z>: [0x104dc-0x104f4]
> 	Entry_GR=1 Save_SP Total_frame_size=8
> <main>: [0x104f8-0x10544]
> 	Entry_GR=1 Save_SP Total_frame_size=8
> <f>: [0x10548-0x10564]
> 	Entry_GR=2 Save_SP Save_RP Total_frame_size=8
>
> The weak version of f is the<a+1c>  entry.
>
>> But "readelf -u" doesn't show the "Entry_GR=..." lines for _any_ function any longer (in the final executable).
>> I really mean _all_ functions, weak, non-weak, standard, ...
>
> That's not what I'm seeing.  The old and new versions seem similar
> (i.e., with respect to missing "Entry_GR=...").  Didn't touch the
> code that extracts and prints this stuff.
>
> The lack of "Entry_GR=..." stuff for an entry probably indicates
> that there isn't a .CALLINFO directive for the function in question.
> This could happen if the function is handcoded assembler.  However,
> it is legitimate for a function not to have any of the unwind stuff
> set (e.g., function doesn't save any registers or allocate a frame).
> I think GCC gets this right but it never has been looked at with a
> magnifying glass.
>
>> The patch you attached only changes the start and end addresses of the symbols...?
>
> Yes, and only for .o's.  In final executables, there are no relocations
> in the .PARISC.unwind section.  So, the values printed should be unaffected.
>
> In the .o case, the code was in effect doing the SEGREL relocation twice
> leading to offsets twice as big as they should have been.  It still runs
> through the relocations if present, but uses the value from doing the
> relocation if one is present.  Compare what you see now with objdump -d
> and readelf -u on a .o.

Hi Dave,

you are probably correct. Nevertheless, your patches seem to have side-effects.
With your patches, the testcase from me now looks correct (as you explained above).

But when compiling the kernel something is still wrong.
I tried it a few times now, recompiled binutils, the kernel and so on.
I'm not 100% sure that I did everything correct, but I still think there is
something wrong...

This is what I get with your patches:
/opt/cross-hppa-4.4.neu/bin/hppa-linux-readelf -u vmlinux
...
--------------------------------------------------------------
<arch_mod_section_prepend>: [0x1011fc00-0x1011fc28]

<module_arch_cleanup>: [0x1011fc2c-0x1011fc6c]

<apply_relocate>: [0x1011fc70-0x1011fca4]
         Entry_GR=2 Save_SP Save_RP Total_frame_size=8
<module_finalize>: [0x1011fca8-0x1011fe8c]
         Entry_GR=1 Save_SP Save_RP Total_frame_size=24
<get_stub>: [0x1011fe90-0x1011ffb4]

<apply_relocate_add>: [0x1011ffb8-0x101205b8]

<module_frob_arch_sections>: [0x101205bc-0x10120758]

<module_free>: [0x1012075c-0x101207a4]

<module_alloc>: [0x101207a8-0x101207e4]

<dump_trace>: [0x101207e8-0x10120904]

<save_stack_trace_tsk>: [0x10120908-0x10120958]

<save_stack_trace>: [0x1012095c-0x101209b8]

<sgl_frnd>: [0x101209bc-0x10120b8c]
         Entry_GR=1 Save_SP Total_frame_size=8
<dbl_frnd>: [0x10120b90-0x10120e74]
         Entry_GR=1 Save_SP Total_frame_size=8
--------------------------------------------------------------

As you can see, a few Entry_GR lines are missing.
Even for C-functions for which Entry_GR was there with the old toolchain.
I sadly can not see any reason or logic in why specific functions don't
have their Entry_GR lines any longer.

Here for reference what I see with the old (unpatched) toolchain:
(as you can see arch_mod_section_prepend() is there twice again -> because
of the old unpatched toolchain)

--------------------------------------------------------------
/opt/cross-hppa-4.4/bin/hppa-linux-readelf -u vmlinux
...
<arch_mod_section_prepend>: [0x1011fc00-0x1011fc28]
         Entry_GR=1 Save_SP Total_frame_size=8
<arch_mod_section_prepend>: [0x1011fc00-0x10167dec]
         Entry_GR=1 Save_SP Total_frame_size=8
<module_arch_cleanup>: [0x1011fc2c-0x1011fc6c]
         Entry_GR=2 Save_SP Save_RP Total_frame_size=8
<apply_relocate>: [0x1011fc70-0x1011fca4]
         Entry_GR=1 Save_SP Save_RP Total_frame_size=8
<module_finalize>: [0x1011fca8-0x1011fe8c]
         Entry_GR=11 Save_SP Save_RP Total_frame_size=16
<get_stub>: [0x1011fe90-0x1011ffb4]
         Entry_GR=1 Save_SP Total_frame_size=8
<apply_relocate_add>: [0x1011ffb8-0x101205b8]
         Entry_GR=16 Save_SP Save_RP Total_frame_size=24
<module_frob_arch_sections>: [0x101205bc-0x10120758]
         Entry_GR=10 Save_SP Save_RP Total_frame_size=16
<module_free>: [0x1012075c-0x101207a4]
         Entry_GR=3 Save_SP Save_RP Total_frame_size=8
<module_alloc>: [0x101207a8-0x101207e4]
         Entry_GR=1 Save_SP Save_RP Total_frame_size=8
<dump_trace>: [0x101207e8-0x10120904]
         Entry_GR=7 Save_SP Save_RP Total_frame_size=80
<save_stack_trace_tsk>: [0x10120908-0x10120958]
         Entry_GR=2 Save_SP Save_RP Total_frame_size=8
<save_stack_trace_tsk>: [0x10120908-0x1015c7ac]
         Entry_GR=2 Save_SP Save_RP Total_frame_size=8
<save_stack_trace>: [0x1012095c-0x101209b8]
         Entry_GR=2 Save_SP Save_RP Total_frame_size=8
<sgl_frnd>: [0x101209bc-0x10120b8c]
         Entry_GR=1 Save_SP Total_frame_size=8
<dbl_frnd>: [0x10120b90-0x10120e74]
         Entry_GR=1 Save_SP Total_frame_size=8
--------------------------------------------------------------

Helge
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> On 10/30/2009 12:35 AM, John David Anglin wrote:
> >>
> >> On 10/29/2009 10:07 PM, John David Anglin wrote:
> >>>>> Still need to look at readelf -u on .o's.
> >>>>
> >>>> Yes, I see this too. readelf -u doesn't print any longer the second line of:
> >>>> <arch_mod_section_prepend>: [0x1011fc4c-0x1011fc74]
> >>>>              Entry_GR=1 Save_SP Total_frame_size=8
> >>>
> >>> Actually, the entries are still there.  For weak functions that
> >>> are not used, they appear as "<foo+x>:" where foo is the closest
> >>> preceding symbol before the unused weak function.  In practice,
> >>> the code shouldn't be entered, so the lack of an associated function
> >>> symbol shouldn't matter.
> >>>
> >>> I have a fix for the readelf -u bug.  See below.
> >>
> >> Sorry, but I don't fully understand...
> >>
> >> With your patch to gas, the unwind info for the weak functions are completely gone in the final executable (which is good).
> >
> > I don't think I changed this.  In the testcase that you sent, I see
> >
> > <a>: [0x104a0-0x104b8]
> >          Entry_GR=1 Save_SP Total_frame_size=8
> > <a+1c>: [0x104bc-0x104d8]
> > 	Entry_GR=1 Save_SP Total_frame_size=8
> > <z>: [0x104dc-0x104f4]
> > 	Entry_GR=1 Save_SP Total_frame_size=8
> > <main>: [0x104f8-0x10544]
> > 	Entry_GR=1 Save_SP Total_frame_size=8
> > <f>: [0x10548-0x10564]
> > 	Entry_GR=2 Save_SP Save_RP Total_frame_size=8
> >
> > The weak version of f is the<a+1c>  entry.
> >
> >> But "readelf -u" doesn't show the "Entry_GR=..." lines for _any_ function any longer (in the final executable).
> >> I really mean _all_ functions, weak, non-weak, standard, ...
> >
> > That's not what I'm seeing.  The old and new versions seem similar
> > (i.e., with respect to missing "Entry_GR=...").  Didn't touch the
> > code that extracts and prints this stuff.
> >
> > The lack of "Entry_GR=..." stuff for an entry probably indicates
> > that there isn't a .CALLINFO directive for the function in question.
> > This could happen if the function is handcoded assembler.  However,
> > it is legitimate for a function not to have any of the unwind stuff
> > set (e.g., function doesn't save any registers or allocate a frame).
> > I think GCC gets this right but it never has been looked at with a
> > magnifying glass.
> >
> >> The patch you attached only changes the start and end addresses of the symbols...?
> >
> > Yes, and only for .o's.  In final executables, there are no relocations
> > in the .PARISC.unwind section.  So, the values printed should be unaffected.
> >
> > In the .o case, the code was in effect doing the SEGREL relocation twice
> > leading to offsets twice as big as they should have been.  It still runs
> > through the relocations if present, but uses the value from doing the
> > relocation if one is present.  Compare what you see now with objdump -d
> > and readelf -u on a .o.
> 
> Hi Dave,
> 
> you are probably correct. Nevertheless, your patches seem to have side-effects.
> With your patches, the testcase from me now looks correct (as you explained above).
> 
> But when compiling the kernel something is still wrong.
> I tried it a few times now, recompiled binutils, the kernel and so on.
> I'm not 100% sure that I did everything correct, but I still think there is
> something wrong...
> 
> This is what I get with your patches:
> /opt/cross-hppa-4.4.neu/bin/hppa-linux-readelf -u vmlinux
> ...
> --------------------------------------------------------------
> <arch_mod_section_prepend>: [0x1011fc00-0x1011fc28]
> 
> <module_arch_cleanup>: [0x1011fc2c-0x1011fc6c]
> 
> <apply_relocate>: [0x1011fc70-0x1011fca4]
>          Entry_GR=2 Save_SP Save_RP Total_frame_size=8
> <module_finalize>: [0x1011fca8-0x1011fe8c]
>          Entry_GR=1 Save_SP Save_RP Total_frame_size=24
> <get_stub>: [0x1011fe90-0x1011ffb4]
> 
> <apply_relocate_add>: [0x1011ffb8-0x101205b8]
> 
> <module_frob_arch_sections>: [0x101205bc-0x10120758]
> 
> <module_free>: [0x1012075c-0x101207a4]
> 
> <module_alloc>: [0x101207a8-0x101207e4]
> 
> <dump_trace>: [0x101207e8-0x10120904]
> 
> <save_stack_trace_tsk>: [0x10120908-0x10120958]
> 
> <save_stack_trace>: [0x1012095c-0x101209b8]
> 
> <sgl_frnd>: [0x101209bc-0x10120b8c]
>          Entry_GR=1 Save_SP Total_frame_size=8
> <dbl_frnd>: [0x10120b90-0x10120e74]
>          Entry_GR=1 Save_SP Total_frame_size=8
> --------------------------------------------------------------
> 
> As you can see, a few Entry_GR lines are missing.
> Even for C-functions for which Entry_GR was there with the old toolchain.
> I sadly can not see any reason or logic in why specific functions don't
> have their Entry_GR lines any longer.
> 
> Here for reference what I see with the old (unpatched) toolchain:
> (as you can see arch_mod_section_prepend() is there twice again -> because
> of the old unpatched toolchain)
> 
> --------------------------------------------------------------
> /opt/cross-hppa-4.4/bin/hppa-linux-readelf -u vmlinux
> ...
> <arch_mod_section_prepend>: [0x1011fc00-0x1011fc28]
>          Entry_GR=1 Save_SP Total_frame_size=8
> <arch_mod_section_prepend>: [0x1011fc00-0x10167dec]
>          Entry_GR=1 Save_SP Total_frame_size=8
> <module_arch_cleanup>: [0x1011fc2c-0x1011fc6c]
>          Entry_GR=2 Save_SP Save_RP Total_frame_size=8
> <apply_relocate>: [0x1011fc70-0x1011fca4]
>          Entry_GR=1 Save_SP Save_RP Total_frame_size=8
> <module_finalize>: [0x1011fca8-0x1011fe8c]
>          Entry_GR=11 Save_SP Save_RP Total_frame_size=16
> <get_stub>: [0x1011fe90-0x1011ffb4]
>          Entry_GR=1 Save_SP Total_frame_size=8
> <apply_relocate_add>: [0x1011ffb8-0x101205b8]
>          Entry_GR=16 Save_SP Save_RP Total_frame_size=24
> <module_frob_arch_sections>: [0x101205bc-0x10120758]
>          Entry_GR=10 Save_SP Save_RP Total_frame_size=16
> <module_free>: [0x1012075c-0x101207a4]
>          Entry_GR=3 Save_SP Save_RP Total_frame_size=8
> <module_alloc>: [0x101207a8-0x101207e4]
>          Entry_GR=1 Save_SP Save_RP Total_frame_size=8
> <dump_trace>: [0x101207e8-0x10120904]
>          Entry_GR=7 Save_SP Save_RP Total_frame_size=80
> <save_stack_trace_tsk>: [0x10120908-0x10120958]
>          Entry_GR=2 Save_SP Save_RP Total_frame_size=8
> <save_stack_trace_tsk>: [0x10120908-0x1015c7ac]
>          Entry_GR=2 Save_SP Save_RP Total_frame_size=8
> <save_stack_trace>: [0x1012095c-0x101209b8]
>          Entry_GR=2 Save_SP Save_RP Total_frame_size=8
> <sgl_frnd>: [0x101209bc-0x10120b8c]
>          Entry_GR=1 Save_SP Total_frame_size=8
> <dbl_frnd>: [0x10120b90-0x10120e74]
>          Entry_GR=1 Save_SP Total_frame_size=8
> --------------------------------------------------------------

It's not exactly clear what's going on.  I would say that the old
and new versions of readelf should produce identical results on the
same kernel.  The readelf change was only supposed to affect the
output from .o's.

Looking at the code for arch_mod_section_prepend in one of my kernels,
there are no saved registers and there is no frame allocated.  Thus,
the "Entry_GR=1 Save_SP Total_frame_size=8" printed by the old version
of readelf might be wrong.  However, you can't tell unless you compare
the actual code with the readelf -u output.

There seems to a problem with readelf -u on 32-bit kernels.  The
address ranges are wrong.  The segment offset doesn't seem to be
being handled correctly.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:05 2018
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Subject: Re: Out of order unwind entry warning
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On Fri, 30 Oct 2009, John David Anglin wrote:

> There seems to a problem with readelf -u on 32-bit kernels.  The
> address ranges are wrong.  The segment offset doesn't seem to be
> being handled correctly.

readelf -u uses the base address of the segment containing the
.PARISC.unwind section.  On 64-bit kernels, the .PARISC.unwind
section is in the same segment as the .text section, so the
addresses print are correct.  However, on recent 32-bit kernels,
this is not the case:

 Section to Segment mapping:
  Segment Sections...
   00     .text .rodata .init.rodata __bug_table .pci_fixup .builtin_fw __ksymtab __ksymtab_gpl __kcrctab __kcrctab_gpl __ksymtab_strings __param 
   01     __ex_table .PARISC.unwind .data.read_mostly .data .got .data.vmpages .bss 
   02     .data.init_task .init.text .init.data .init.setup .initcall.init .con_initcall.init .exit.text 
   03     

.PARISC.unwind is readonly, so it shouldn't be in a W segment.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: Out of order unwind entry warning
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On 10/31/2009 03:19 AM, John David Anglin wrote:
> On Fri, 30 Oct 2009, John David Anglin wrote:
>
>> There seems to a problem with readelf -u on 32-bit kernels.  The
>> address ranges are wrong.  The segment offset doesn't seem to be
>> being handled correctly.
>
> readelf -u uses the base address of the segment containing the
> .PARISC.unwind section.  On 64-bit kernels, the .PARISC.unwind
> section is in the same segment as the .text section, so the
> addresses print are correct.  However, on recent 32-bit kernels,
> this is not the case:
>
>   Section to Segment mapping:
>    Segment Sections...
>     00     .text .rodata .init.rodata __bug_table .pci_fixup .builtin_fw __ksymtab __ksymtab_gpl __kcrctab __kcrctab_gpl __ksymtab_strings __param
>     01     __ex_table .PARISC.unwind .data.read_mostly .data .got .data.vmpages .bss
>     02     .data.init_task .init.text .init.data .init.setup .initcall.init .con_initcall.init .exit.text
>     03
>
> .PARISC.unwind is readonly, so it shouldn't be in a W segment.


apply the patch in http://patchwork.kernel.org/patch/55797/ before testing.
.PARISC.unwind is then still in a RW segment, but at least you will get more reliable output.

Helge
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On Fri, 30 Oct 2009, Helge Deller wrote:

> But when compiling the kernel something is still wrong.
> I tried it a few times now, recompiled binutils, the kernel and so on.
> I'm not 100% sure that I did everything correct, but I still think there is
> something wrong...

I believe that you are correct but I think we have another unrelated bug.
It appears that the unwind data is getting messed up in the link of
built-in.o.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:06 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Out of order unwind entry warning
Date: Sun, 1 Nov 2009 20:40:26 -0500
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To: Helge Deller <deller@gmx.de>
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On Sun, 01 Nov 2009, John David Anglin wrote:

> On Fri, 30 Oct 2009, Helge Deller wrote:
> 
> > But when compiling the kernel something is still wrong.
> > I tried it a few times now, recompiled binutils, the kernel and so on.
> > I'm not 100% sure that I did everything correct, but I still think there is
> > something wrong...
> 
> I believe that you are correct but I think we have another unrelated bug.
> It appears that the unwind data is getting messed up in the link of
> built-in.o.

It seems the unwind data is being sorted by ld -r.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:06 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Out of order unwind entry warning
Date: Sun, 1 Nov 2009 21:34:32 -0500
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On Sun, 01 Nov 2009, John David Anglin wrote:

> On Sun, 01 Nov 2009, John David Anglin wrote:
> 
> > On Fri, 30 Oct 2009, Helge Deller wrote:
> > 
> > > But when compiling the kernel something is still wrong.
> > > I tried it a few times now, recompiled binutils, the kernel and so on.
> > > I'm not 100% sure that I did everything correct, but I still think there is
> > > something wrong...
> > 
> > I believe that you are correct but I think we have another unrelated bug.
> > It appears that the unwind data is getting messed up in the link of
> > built-in.o.
> 
> It seems the unwind data is being sorted by ld -r.

Does the attached patch fix the problem?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--xHFwDpU9dbj6ez1V
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="unwind.d"

Index: elf32-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
retrieving revision 1.168
diff -u -3 -p -r1.168 elf32-hppa.c
--- elf32-hppa.c	18 Jun 2009 14:18:28 -0000	1.168
+++ elf32-hppa.c	2 Nov 2009 02:32:05 -0000
@@ -3238,6 +3238,9 @@ elf32_hppa_final_link (bfd *abfd, struct
 
   /* If we're producing a final executable, sort the contents of the
      unwind section.  */
+  if (info->relocatable)
+    return TRUE;
+
   return elf_hppa_sort_unwind (abfd);
 }
 
Index: elf64-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf64-hppa.c,v
retrieving revision 1.92
diff -u -3 -p -r1.92 elf64-hppa.c
--- elf64-hppa.c	21 May 2009 14:15:49 -0000	1.92
+++ elf64-hppa.c	2 Nov 2009 02:32:05 -0000
@@ -3033,7 +3033,7 @@ elf_hppa_final_link (bfd *abfd, struct b
 
   /* If we're producing a final executable, sort the contents of the
      unwind section. */
-  if (retval)
+  if (retval && !info->relocatable)
     retval = elf_hppa_sort_unwind (abfd);
 
   return retval;

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From - Thu Nov 08 21:05:06 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Out of order unwind entry warning
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On 11/02/2009 03:34 AM, John David Anglin wrote:
> On Sun, 01 Nov 2009, John David Anglin wrote:
>
>> On Sun, 01 Nov 2009, John David Anglin wrote:
>>
>>> On Fri, 30 Oct 2009, Helge Deller wrote:
>>>
>>>> But when compiling the kernel something is still wrong.
>>>> I tried it a few times now, recompiled binutils, the kernel and so on.
>>>> I'm not 100% sure that I did everything correct, but I still think there is
>>>> something wrong...
>>>
>>> I believe that you are correct but I think we have another unrelated bug.
>>> It appears that the unwind data is getting messed up in the link of
>>> built-in.o.
>>
>> It seems the unwind data is being sorted by ld -r.
>
> Does the attached patch fix the problem?

Yes, it does :-)

All of your patches applied seem to work 100% OK.

Helge

PS: I only tested 32bit, but I assume 64bit will then work as well.
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From - Thu Nov 08 21:05:06 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Out of order unwind entry warning
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> On 11/02/2009 03:34 AM, John David Anglin wrote:
> > On Sun, 01 Nov 2009, John David Anglin wrote:
> >
> >> On Sun, 01 Nov 2009, John David Anglin wrote:
> >>
> >>> On Fri, 30 Oct 2009, Helge Deller wrote:
> >>>
> >>>> But when compiling the kernel something is still wrong.
> >>>> I tried it a few times now, recompiled binutils, the kernel and so on.
> >>>> I'm not 100% sure that I did everything correct, but I still think there is
> >>>> something wrong...
> >>>
> >>> I believe that you are correct but I think we have another unrelated bug.
> >>> It appears that the unwind data is getting messed up in the link of
> >>> built-in.o.
> >>
> >> It seems the unwind data is being sorted by ld -r.
> >
> > Does the attached patch fix the problem?
> 
> Yes, it does :-)

Thanks for testing!  I have built a 32-bit kernel with the revised assembler
and linker, and the readelf -u output looked good to me.  I will install
the remaining two changes tonight (the assembler change was installed a couple
of days ago).

I haven't had a chance to boot the new kernel (waiting for a GCC build
to complete).  There is a USB issue that appeared on my c3750 with
2.6.30.9 (2.6.30.8 is ok) and 2.6.31.5.  Here is the dmesg output
from 2.6.31.5:

Linux version 2.6.31.5 (root@hiauly6) (gcc version 4.3.4 (Debian 4.3.4-5) ) #6 Sun Nov 1 14:20:36 EST 2009
unwind_init: start = 0x10524000, end = 0x10559a60, entries = 13734
FP[0] enabled: Rev 1 Model 19
The 32-bit Kernel has started...
...
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
...
usbmon: debugfs is not available
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci_hcd 0000:00:0e.2: OHCI Host Controller
ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:0e.2: irq 1, io mem 0xf4007000
...
usb usb1: configuration #1 chosen from 1 choice
 sdb5
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
...
usb 1-1: new low speed USB device using ohci_hcd and address 2
EXT3-fs: mounted filesystem with writeback data mode.
VFS: Mounted root (ext3 filesystem) readonly on device 8:19.
Freeing unused kernel memory: 124k freed
usb 1-1: configuration #1 chosen from 1 choice
usb 1-2: new low speed USB device using ohci_hcd and address 3
usb 1-2: configuration #1 chosen from 1 choice
sysfs: cannot create duplicate filename '/module/usbhid/sections/.text'
------------[ cut here ]------------
Badness at fs/sysfs/dir.c:487

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111 Not tainted
r00-03  0004000f 10576200 101cb5dc 4edc9000
r04-07  ffffffef 4fbb4288 4edc8a88 00074844
r08-11  4f8db000 00000000 00063000 00000064
r12-15  00000124 00067bbb 104c36a0 00000058
r16-19  00068fc8 00000062 4fbb4148 10576244
r20-23  00002b68 4f16bca0 0027f808 ffffffff
r24-27  ffffffff 00002b68 10576240 1055c2d0
r28-31  0000004e 00000000 4fbb4340 102a0244
sr00-03  00000000 00000000 00000000 00000010
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101cb5dc 101cb5e0
 IIR: 03ffe01f    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 4fbb4000 CR31: ffffffff
 ORIG_R28: 00000001
 IAOQ[0]: sysfs_add_one+0x8c/0xb4
 IAOQ[1]: sysfs_add_one+0x90/0xb4
 RP(r2): sysfs_add_one+0x8c/0xb4
Backtrace:
 [<101cadb0>] sysfs_add_file_mode+0x58/0xb4
 [<101cd4b4>] internal_create_group+0x118/0x1dc
 [<10158434>] load_module+0xf14/0x1214

input: Logitech N48 as /devices/parisc/10/10:0/pci0000:00/0000:00:0e.2/usb1/1-1/1-1:1.0/input/input0
generic-usb 0003:046D:C001.0001: input: USB HID v1.00 Mouse [Logitech N48] on usb-0000:00:0e.2-1/input0
input: SILITEK USB Keyboard and Mouse as /devices/parisc/10/10:0/pci0000:00/0000:00:0e.2/usb1/1-2/1-2:1.0/input/input1
generic-usb 0003:047B:0002.0002: input: USB HID v1.00 Keyboard [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-2/input0
input: SILITEK USB Keyboard and Mouse as /devices/parisc/10/10:0/pci0000:00/0000:00:0e.2/usb1/1-2/1-2:1.1/input/input2
generic-usb 0003:047B:0002.0003: input: USB HID v1.00 Mouse [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-2/input1
usbcore: registered new interface driver usbhid
usbhid: v2.6:USB HID core driver
...

As you can see, there is a USB mouse and keyboard.  Want to see backtrace
with new assembler and linker.  However, at the least the first part is
consistent with the sysfs warning.

I "upgraded" this system to testing last weekend.  The keyboard is broken
under X.  In gdm/kdm, one has to press a key twice.  The Xorg.0.log seems
ok:

(**) Option "CoreKeyboard"
(**) Generic Keyboard: always reports core events
(**) Option "Protocol" "standard"
(**) Generic Keyboard: Protocol: standard
(**) Option "AutoRepeat" "500 30"
(**) Option "XkbRules" "xorg"
(**) Generic Keyboard: XkbRules: "xorg"
(**) Option "XkbModel" "pc104"
(**) Generic Keyboard: XkbModel: "pc104"
(**) Option "XkbLayout" "us"
(**) Generic Keyboard: XkbLayout: "us"
(**) Option "CustomKeycodes" "off"
(**) Generic Keyboard: CustomKeycodes disabled
(II) XINPUT: Adding extended input device "Generic Keyboard" (type: KEYBOARD)

Mouse works ok.

Thoughts?

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 11/02/2009 10:50 PM, John David Anglin wrote:
>> On 11/02/2009 03:34 AM, John David Anglin wrote:
>>> On Sun, 01 Nov 2009, John David Anglin wrote:
>>>
>>>> On Sun, 01 Nov 2009, John David Anglin wrote:
>>>>
>>>>> On Fri, 30 Oct 2009, Helge Deller wrote:
>>>>>
>>>>>> But when compiling the kernel something is still wrong.
>>>>>> I tried it a few times now, recompiled binutils, the kernel and so on.
>>>>>> I'm not 100% sure that I did everything correct, but I still think there is
>>>>>> something wrong...
>>>>>
>>>>> I believe that you are correct but I think we have another unrelated bug.
>>>>> It appears that the unwind data is getting messed up in the link of
>>>>> built-in.o.
>>>>
>>>> It seems the unwind data is being sorted by ld -r.
>>>
>>> Does the attached patch fix the problem?
>>
>> Yes, it does :-)
>
> Thanks for testing!  I have built a 32-bit kernel with the revised assembler
> and linker, and the readelf -u output looked good to me.  I will install
> the remaining two changes tonight (the assembler change was installed a couple
> of days ago).

I did tested the 64bit version now as well.
It looks good too.

> I haven't had a chance to boot the new kernel (waiting for a GCC build
> to complete).  There is a USB issue that appeared on my c3750 with
> 2.6.30.9 (2.6.30.8 is ok) and 2.6.31.5.  Here is the dmesg output
> from 2.6.31.5:
>
> Linux version 2.6.31.5 (root@hiauly6) (gcc version 4.3.4 (Debian 4.3.4-5) ) #6 Sun Nov 1 14:20:36 EST 2009
> unwind_init: start = 0x10524000, end = 0x10559a60, entries = 13734
> FP[0] enabled: Rev 1 Model 19
> The 32-bit Kernel has started...
> ...
> usbcore: registered new interface driver usbfs
> usbcore: registered new interface driver hub
> usbcore: registered new device driver usb
> ...
> usbmon: debugfs is not available
> ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> ohci_hcd 0000:00:0e.2: OHCI Host Controller
> ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
> ohci_hcd 0000:00:0e.2: irq 1, io mem 0xf4007000
> ...
> usb usb1: configuration #1 chosen from 1 choice
>   sdb5
> hub 1-0:1.0: USB hub found
> hub 1-0:1.0: 3 ports detected
> ...
> usb 1-1: new low speed USB device using ohci_hcd and address 2
> EXT3-fs: mounted filesystem with writeback data mode.
> VFS: Mounted root (ext3 filesystem) readonly on device 8:19.
> Freeing unused kernel memory: 124k freed
> usb 1-1: configuration #1 chosen from 1 choice
> usb 1-2: new low speed USB device using ohci_hcd and address 3
> usb 1-2: configuration #1 chosen from 1 choice
> sysfs: cannot create duplicate filename '/module/usbhid/sections/.text'
> ------------[ cut here ]------------
> Badness at fs/sysfs/dir.c:487

Yes, this is known.
See here:
http://patchwork.kernel.org/patch/42190/
Would be nice if this could get fixed.

  
>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001111 Not tainted
> r00-03  0004000f 10576200 101cb5dc 4edc9000
> r04-07  ffffffef 4fbb4288 4edc8a88 00074844
> r08-11  4f8db000 00000000 00063000 00000064
> r12-15  00000124 00067bbb 104c36a0 00000058
> r16-19  00068fc8 00000062 4fbb4148 10576244
> r20-23  00002b68 4f16bca0 0027f808 ffffffff
> r24-27  ffffffff 00002b68 10576240 1055c2d0
> r28-31  0000004e 00000000 4fbb4340 102a0244
> sr00-03  00000000 00000000 00000000 00000010
> sr04-07  00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 101cb5dc 101cb5e0
>   IIR: 03ffe01f    ISR: 00000000  IOR: 00000000
>   CPU:        0   CR30: 4fbb4000 CR31: ffffffff
>   ORIG_R28: 00000001
>   IAOQ[0]: sysfs_add_one+0x8c/0xb4
>   IAOQ[1]: sysfs_add_one+0x90/0xb4
>   RP(r2): sysfs_add_one+0x8c/0xb4
> Backtrace:
>   [<101cadb0>] sysfs_add_file_mode+0x58/0xb4
>   [<101cd4b4>] internal_create_group+0x118/0x1dc
>   [<10158434>] load_module+0xf14/0x1214
>
> input: Logitech N48 as /devices/parisc/10/10:0/pci0000:00/0000:00:0e.2/usb1/1-1/1-1:1.0/input/input0
> generic-usb 0003:046D:C001.0001: input: USB HID v1.00 Mouse [Logitech N48] on usb-0000:00:0e.2-1/input0
> input: SILITEK USB Keyboard and Mouse as /devices/parisc/10/10:0/pci0000:00/0000:00:0e.2/usb1/1-2/1-2:1.0/input/input1
> generic-usb 0003:047B:0002.0002: input: USB HID v1.00 Keyboard [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-2/input0
> input: SILITEK USB Keyboard and Mouse as /devices/parisc/10/10:0/pci0000:00/0000:00:0e.2/usb1/1-2/1-2:1.1/input/input2
> generic-usb 0003:047B:0002.0003: input: USB HID v1.00 Mouse [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-2/input1
> usbcore: registered new interface driver usbhid
> usbhid: v2.6:USB HID core driver
> ...
>
> As you can see, there is a USB mouse and keyboard.  Want to see backtrace
> with new assembler and linker.  However, at the least the first part is
> consistent with the sysfs warning.

I have the same keyboard and mouse attached to my c3000.

  
> I "upgraded" this system to testing last weekend.  The keyboard is broken
> under X.  In gdm/kdm, one has to press a key twice.  The Xorg.0.log seems
> ok:
>
> (**) Option "CoreKeyboard"
> (**) Generic Keyboard: always reports core events
> (**) Option "Protocol" "standard"
> (**) Generic Keyboard: Protocol: standard
> (**) Option "AutoRepeat" "500 30"
> (**) Option "XkbRules" "xorg"
> (**) Generic Keyboard: XkbRules: "xorg"
> (**) Option "XkbModel" "pc104"
> (**) Generic Keyboard: XkbModel: "pc104"
> (**) Option "XkbLayout" "us"
> (**) Generic Keyboard: XkbLayout: "us"
> (**) Option "CustomKeycodes" "off"
> (**) Generic Keyboard: CustomKeycodes disabled
> (II) XINPUT: Adding extended input device "Generic Keyboard" (type: KEYBOARD)
>
> Mouse works ok.
> Thoughts?

No idea, as I only netboot my c3000 and normally don't work in front of those PA boxes.
I'll test if I see the same issues...
Did you tried bisecting 2.6.30.8 and 2.6.30.9 ?

Helge
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On Mon, 2009-11-02 at 23:20 +0100, Helge Deller wrote:
> On 11/02/2009 10:50 PM, John David Anglin wrote:
> > sysfs: cannot create duplicate filename '/module/usbhid/sections/.text'
> > ------------[ cut here ]------------
> > Badness at fs/sysfs/dir.c:487
> 
> Yes, this is known.
> See here:
> http://patchwork.kernel.org/patch/42190/
> Would be nice if this could get fixed.

Actually, it is fixed; the patch is upstream as commit
1b364bf438cf337a3818aee77d68c0713f3e1fc4

The patch was designed to fix the panic that occurred.  This warn on is
coming out of the sysfs code when we try to register a duplicate section
name.  The panic that followed is what the patch fixed ... but we still
get left with the warn on.

James




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On 11/02/2009 11:31 PM, James Bottomley wrote:
> On Mon, 2009-11-02 at 23:20 +0100, Helge Deller wrote:
>> On 11/02/2009 10:50 PM, John David Anglin wrote:
>>> sysfs: cannot create duplicate filename '/module/usbhid/sections/.text'
>>> ------------[ cut here ]------------
>>> Badness at fs/sysfs/dir.c:487
>>
>> Yes, this is known.
>> See here:
>> http://patchwork.kernel.org/patch/42190/
>> Would be nice if this could get fixed.
>
> Actually, it is fixed; the patch is upstream as commit
> 1b364bf438cf337a3818aee77d68c0713f3e1fc4
>
> The patch was designed to fix the panic that occurred.  This warn on is
> coming out of the sysfs code when we try to register a duplicate section
> name.  The panic that followed is what the patch fixed ... but we still
> get left with the warn on.

Yes, the crash is fixed, but still the warning is ugly.
Each time you load any module, this warning is filling up the log.
If you boot via serial console (like me) printing this warning with 9600 baud takes endless time (and you easily get up to 30 times this warning).

Helge
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On 11/02/2009 11:20 PM, Helge Deller wrote:
>> Thanks for testing! I have built a 32-bit kernel with the revised
>> assembler and linker, and the readelf -u output looked good to me.
>>I will install the remaining two changes tonight (the assembler
>>change was installed a couple of days ago).
>
> I did tested the 64bit version now as well.
> It looks good too.

Hi Dave,

sadly I answered too early....
With 64bit kernel I get those unwind warnings again with nearly all kernel modules now:
WARNING: Out of order unwind entry! 0000000000d4ad40 and 0000000000d4ad50

Helge
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> On 11/02/2009 11:20 PM, Helge Deller wrote:
> sadly I answered too early....
> With 64bit kernel I get those unwind warnings again with nearly all kernel modules now:
> WARNING: Out of order unwind entry! 0000000000d4ad40 and 0000000000d4ad50

What's readelf say?

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Marek Denis <marek@octogan.net>
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Subject: hanging kernel - HPMC problem
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Hello all,

I am encountering probably quite typical problem with my PA-RISC server. 
Unfortunately, I couldn't find any solution on google.
I am trying to configure kernel on HPPA machine with old PA8000 (with 
300MHz clock) processor.
I managed to install Debian lenny on that machine, configured most of 
the services, owever while trying to recompile the kernel I alwas get 
HPMC bus timeout during the boot. Generic kernel works perfectly, would 
you give me any hints where should I look for a mistake?
I suppose this is only kernel configuration issue.
Here is the .config file that didn't work:
http://pastebin.com/f45530dd7

I would appreciate any help

Marek Denis
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On Tue, Nov 3, 2009 at 5:07 AM, Marek Denis <marek@octogan.net> wrote:
> I suppose this is only kernel configuration issue.
> Here is the .config file that didn't work:
> http://pastebin.com/f45530dd7
>
> I would appreciate any help

I suggest:
* Remove all add-on cards from the hardware.
* Start with the generic config.
* Enable one thing at a time until it stops working.
* Come back to the list with a list of config options that don't work.

It's a slow and tedious process, but that's the only "easy" way to
solve the problem.

Cheers,
Carlos.
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Hi all,

Something broke the stifb graphics driver in 2.6.32-rc5 (Linus' current head).
Somehow it seems, that the PCI subsystem does not activate this PCI slot:

Linux version 2.6.32-rc5-32bit (deller@p100) (gcc version 4.4.1 (GCC) ) #157 Tue Nov 3 21:49:24 CET 2009
...
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. Allegro W2 at 0xfffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
7. Memory at 0xfed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
Setting cache flush threshold to 780 (1 CPUs online)
SBA found Astro 2.1 at 0xfed00000
Elroy version TR4.0 (0x5) found at 0xfed30000
PCI: Enabled native mode for NS87415 (pif=0x8f)
Elroy version TR4.0 (0x5) found at 0xfed32000
pci 0000:01:04.0: BAR 0: no parent found for of device [0xfa000000-0xfbffffff]
			^^^  HERE
...
STI GSC/PCI core graphics driver Version 0.9a
sti 0000:01:04.0: device not available because of BAR 0 [0xfa000000-0xfbffffff] collisions
sti 0000:01:04.0: Cannot enable PCI device
			^^^ HERE
sti: probe of 0000:01:04.0 failed with error -22
STI PCI graphic ROM found at f3800000 (2048 kB), fb at f6000000 (32 MB)
     id 35acda30-9a02587, conforms to spec rev. 8.0d
     graphics card name: A1262A
sticon: Initializing STI text console.
Console: switching to colour STI console 128x48
stifb: 'A1262A' (id: 0x35acda30) not supported.
Linux agpgart interface v0.103
....

Hopefully someone of you has an idea what caused this change?

lspci reports:
01:04.0 Display controller: Hewlett-Packard Company A4977A Visualize EG (rev 03)
         Flags: 66MHz, medium devsel
         Memory at fa000000 (32-bit, non-prefetchable) [size=32M]
         Expansion ROM at f2400000 [disabled] [size=64K]

Helge
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On 11/03/2009 12:23 AM, John David Anglin wrote:
>> On 11/02/2009 11:20 PM, Helge Deller wrote:
>> sadly I answered too early....
>> With 64bit kernel I get those unwind warnings again with nearly all kernel modules now:
>> WARNING: Out of order unwind entry! 0000000000d4ad40 and 0000000000d4ad50
>
> What's readelf say?

"modprobe libcrc32c" gives in dmesg:
WARNING: Out of order unwind entry! 0020d0e8 and 0020d0f8

[deller@p100 linus-linux-2.6-32bit]$ /opt/cross-hppa-4.4.neu/bin/hppa-linux-readelf -u lib/libcrc32c.ko

Unwind section '.PARISC.unwind' at offset 0x11c contains 3 entries:

<libcrc32c_mod_fini>: [0x0-0x2c]
         Entry_GR=1 Save_SP Save_RP Total_frame_size=8
<libcrc32c_mod_init>: [0x0-0x44]
         Entry_GR=1 Save_SP Save_RP Total_frame_size=8
<crc32c>: [0x0-0x6c]
         Entry_GR=2 Save_SP Save_RP Total_frame_size=8
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> Unwind section '.PARISC.unwind' at offset 0x11c contains 3 entries:
> 
> <libcrc32c_mod_fini>: [0x0-0x2c]
>          Entry_GR=1 Save_SP Save_RP Total_frame_size=8
> <libcrc32c_mod_init>: [0x0-0x44]
>          Entry_GR=1 Save_SP Save_RP Total_frame_size=8
> <crc32c>: [0x0-0x6c]
>          Entry_GR=2 Save_SP Save_RP Total_frame_size=8

What do you see for '.rela.PARISC.unwind'?

I suspect that this is a problem in handling the R_PARISC_SEGREL32
relocations is the kernel loader.  The above would be fine if
libcrc32c_mod_fini and libcRc32c_mod_init are in different sections
(.exit.text and .inti.text).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 11/03/2009 10:36 PM, John David Anglin wrote:
>> Unwind section '.PARISC.unwind' at offset 0x11c contains 3 entries:
>>
>> <libcrc32c_mod_fini>: [0x0-0x2c]
>>           Entry_GR=1 Save_SP Save_RP Total_frame_size=8
>> <libcrc32c_mod_init>: [0x0-0x44]
>>           Entry_GR=1 Save_SP Save_RP Total_frame_size=8
>> <crc32c>: [0x0-0x6c]
>>           Entry_GR=2 Save_SP Save_RP Total_frame_size=8
>
> What do you see for '.rela.PARISC.unwind'?
>
> I suspect that this is a problem in handling the R_PARISC_SEGREL32
> relocations is the kernel loader.  The above would be fine if
> libcrc32c_mod_fini and libcRc32c_mod_init are in different sections
> (.exit.text and .inti.text).

Relocation section '.rela.PARISC.unwind' at offset 0x9b8 contains 6 entries:
  Offset     Info    Type            Sym.Value  Sym. Name + Addend
00000000  00000231 R_PARISC_SEGREL32 00000000   .exit.text + 0
00000004  00000231 R_PARISC_SEGREL32 00000000   .exit.text + 2c
00000010  00000331 R_PARISC_SEGREL32 00000000   .init.text + 0
00000014  00000331 R_PARISC_SEGREL32 00000000   .init.text + 44
00000020  00000431 R_PARISC_SEGREL32 00000000   .text.crc32c + 0
00000024  00000431 R_PARISC_SEGREL32 00000000   .text.crc32c + 6c


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From - Thu Nov 08 21:05:07 2018
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> On 11/03/2009 10:36 PM, John David Anglin wrote:
> >> Unwind section '.PARISC.unwind' at offset 0x11c contains 3 entries:
> >>
> >> <libcrc32c_mod_fini>: [0x0-0x2c]
> >>           Entry_GR=1 Save_SP Save_RP Total_frame_size=8
> >> <libcrc32c_mod_init>: [0x0-0x44]
> >>           Entry_GR=1 Save_SP Save_RP Total_frame_size=8
> >> <crc32c>: [0x0-0x6c]
> >>           Entry_GR=2 Save_SP Save_RP Total_frame_size=8
> >
> > What do you see for '.rela.PARISC.unwind'?
> >
> > I suspect that this is a problem in handling the R_PARISC_SEGREL32
> > relocations is the kernel loader.  The above would be fine if
> > libcrc32c_mod_fini and libcRc32c_mod_init are in different sections
> > (.exit.text and .inti.text).
> 
> Relocation section '.rela.PARISC.unwind' at offset 0x9b8 contains 6 entries:
>   Offset     Info    Type            Sym.Value  Sym. Name + Addend
> 00000000  00000231 R_PARISC_SEGREL32 00000000   .exit.text + 0
> 00000004  00000231 R_PARISC_SEGREL32 00000000   .exit.text + 2c
> 00000010  00000331 R_PARISC_SEGREL32 00000000   .init.text + 0
> 00000014  00000331 R_PARISC_SEGREL32 00000000   .init.text + 44
> 00000020  00000431 R_PARISC_SEGREL32 00000000   .text.crc32c + 0
> 00000024  00000431 R_PARISC_SEGREL32 00000000   .text.crc32c + 6c

That's exactly what I expected.  There's no overlap.  The module
loader needs to sort the unwind entries after doing the relocations.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 11/03/2009 10:54 PM, John David Anglin wrote:
>> On 11/03/2009 10:36 PM, John David Anglin wrote:
>>>> Unwind section '.PARISC.unwind' at offset 0x11c contains 3 entries:
>>>>
>>>> <libcrc32c_mod_fini>: [0x0-0x2c]
>>>>            Entry_GR=1 Save_SP Save_RP Total_frame_size=8
>>>> <libcrc32c_mod_init>: [0x0-0x44]
>>>>            Entry_GR=1 Save_SP Save_RP Total_frame_size=8
>>>> <crc32c>: [0x0-0x6c]
>>>>            Entry_GR=2 Save_SP Save_RP Total_frame_size=8
>>>
>>> What do you see for '.rela.PARISC.unwind'?
>>>
>>> I suspect that this is a problem in handling the R_PARISC_SEGREL32
>>> relocations is the kernel loader.  The above would be fine if
>>> libcrc32c_mod_fini and libcRc32c_mod_init are in different sections
>>> (.exit.text and .inti.text).
>>
>> Relocation section '.rela.PARISC.unwind' at offset 0x9b8 contains 6 entries:
>>    Offset     Info    Type            Sym.Value  Sym. Name + Addend
>> 00000000  00000231 R_PARISC_SEGREL32 00000000   .exit.text + 0
>> 00000004  00000231 R_PARISC_SEGREL32 00000000   .exit.text + 2c
>> 00000010  00000331 R_PARISC_SEGREL32 00000000   .init.text + 0
>> 00000014  00000331 R_PARISC_SEGREL32 00000000   .init.text + 44
>> 00000020  00000431 R_PARISC_SEGREL32 00000000   .text.crc32c + 0
>> 00000024  00000431 R_PARISC_SEGREL32 00000000   .text.crc32c + 6c
>
> That's exactly what I expected.  There's no overlap.  The module
> loader needs to sort the unwind entries after doing the relocations.

It's already sorting the entries, but creating the relocation is currently a hack.

See top of arch/parisc/kernel/module.c:
  *    - SEGREL32 handling
  *      We are not doing SEGREL32 handling correctly. According to the ABI, we
  *      should do a value offset, like this:
  *                      if (in_init(me, (void *)val))
  *                              val -= (uint32_t)me->module_init;
  *                      else
  *                              val -= (uint32_t)me->module_core;
  *      However, SEGREL32 is used only for PARISC unwind entries, and we want
  *      those entries to have an absolute address, and not just an offset.
  *
  *      The unwind table mechanism has the ability to specify an offset for
  *      the unwind table; however, because we split off the init functions into
  *      a different piece of memory, it is not possible to do this using a
  *      single offset. Instead, we use the above hack for now.

If we change this, don't we require a binutils update then at the same time from the users?

Helge
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From - Thu Nov 08 21:05:07 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Out of order unwind entry warning
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To: deller@gmx.de (Helge Deller)
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> >> Relocation section '.rela.PARISC.unwind' at offset 0x9b8 contains 6 entries:
> >>    Offset     Info    Type            Sym.Value  Sym. Name + Addend
> >> 00000000  00000231 R_PARISC_SEGREL32 00000000   .exit.text + 0
> >> 00000004  00000231 R_PARISC_SEGREL32 00000000   .exit.text + 2c
> >> 00000010  00000331 R_PARISC_SEGREL32 00000000   .init.text + 0
> >> 00000014  00000331 R_PARISC_SEGREL32 00000000   .init.text + 44
> >> 00000020  00000431 R_PARISC_SEGREL32 00000000   .text.crc32c + 0
> >> 00000024  00000431 R_PARISC_SEGREL32 00000000   .text.crc32c + 6c
> >
> > That's exactly what I expected.  There's no overlap.  The module
> > loader needs to sort the unwind entries after doing the relocations.
> 
> It's already sorting the entries, but creating the relocation is currently a hack.
> 
> See top of arch/parisc/kernel/module.c:
>   *    - SEGREL32 handling
>   *      We are not doing SEGREL32 handling correctly. According to the ABI, we
>   *      should do a value offset, like this:
>   *                      if (in_init(me, (void *)val))
>   *                              val -= (uint32_t)me->module_init;
>   *                      else
>   *                              val -= (uint32_t)me->module_core;
>   *      However, SEGREL32 is used only for PARISC unwind entries, and we want
>   *      those entries to have an absolute address, and not just an offset.
>   *
>   *      The unwind table mechanism has the ability to specify an offset for
>   *      the unwind table; however, because we split off the init functions into
>   *      a different piece of memory, it is not possible to do this using a
>   *      single offset. Instead, we use the above hack for now.
> 
> If we change this, don't we require a binutils update then at the same time from the users?

Where does the .exit.text section fit in this scheme?  The loader
has to appropriately group the sections and determine the section offsets.
It would seem that there is a problem with load offset for at least
one of the three sections in this module.

Don't think fixing the offsets requires a binutils update.  However, the
change to using section offsets may have made the problem worse.  The binutils
update only corrected the issue with overloaded symbols.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:07 2018
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From: Thomas Gleixner <tglx@linutronix.de>
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Subject: [patch 10/16] parisc: Replace old style lock init
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SPIN_LOCK_UNLOCKED is deprecated. Init the per cpu locks at runtime
instead.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/smp.c |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

Index: linux-2.6/arch/parisc/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/parisc/kernel/smp.c
+++ linux-2.6/arch/parisc/kernel/smp.c
@@ -60,8 +60,6 @@ static int smp_debug_lvl = 0;
 #define smp_debug(lvl, ...)	do { } while(0)
 #endif /* DEBUG_SMP */
 
-DEFINE_SPINLOCK(smp_lock);
-
 volatile struct task_struct *smp_init_current_idle_task;
 
 /* track which CPU is booting */
@@ -69,7 +67,7 @@ static volatile int cpu_now_booting __cp
 
 static int parisc_max_cpus __cpuinitdata = 1;
 
-DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
+static DEFINE_PER_CPU(spinlock_t, ipi_lock);
 
 enum ipi_message_type {
 	IPI_NOP=0,
@@ -438,6 +436,11 @@ void __init smp_prepare_boot_cpu(void)
 */
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
+	int cpu;
+
+	for_each_possible_cpu(cpu)
+		spin_lock_init(&per_cpu(ipi_lock, cpu));
+
 	init_cpu_present(cpumask_of(0));
 
 	parisc_max_cpus = max_cpus;


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From - Thu Nov 08 21:05:07 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Out of order unwind entry warning
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Hi Dave,

* John David Anglin <dave@hiauly1.hia.nrc.ca>:
> > >> Relocation section '.rela.PARISC.unwind' at offset 0x9b8 contains 6 entries:
> > >>    Offset     Info    Type            Sym.Value  Sym. Name + Addend
> > >> 00000000  00000231 R_PARISC_SEGREL32 00000000   .exit.text + 0
> > >> 00000004  00000231 R_PARISC_SEGREL32 00000000   .exit.text + 2c
> > >> 00000010  00000331 R_PARISC_SEGREL32 00000000   .init.text + 0
> > >> 00000014  00000331 R_PARISC_SEGREL32 00000000   .init.text + 44
> > >> 00000020  00000431 R_PARISC_SEGREL32 00000000   .text.crc32c + 0
> > >> 00000024  00000431 R_PARISC_SEGREL32 00000000   .text.crc32c + 6c
> > >
> > > That's exactly what I expected.  There's no overlap.  The module
> > > loader needs to sort the unwind entries after doing the relocations.

You were right here.

> > It's already sorting the entries, 

and I was to some degree wrong :-)

The parisc module loader as written by Randolph was sorting the
unwind entries. But I submitted a wrong patch which replaced the
hand-written sort() by the kernel provided sort() function:
http://patchwork.kernel.org/patch/56528/
Due to a bug in the patch a wrong amount of unwind entries were
calculated and as such the sort() function didn't sorted all unwind entries.

Below is an updated patch. With this one, all your binutils changes
work nicely with 32- and 64-bit kernels and modules.

Kyle, I see you applied my original patch into your "next" tree already:
http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commit;h=b8d46862d910c3be7c28c627204da968c174aa9a

Do you want me to send you a new patch against your "next" tree instead?


> > If we change this, don't we require a binutils update then at the same time from the users?
> 
> Don't think fixing the offsets requires a binutils update.  However, the
> change to using section offsets may have made the problem worse.  The binutils
> update only corrected the issue with overloaded symbols.

Yes, a binutils update will just fix user's "out-of-order-unwind-entry"
warnings.

Thanks!

Helge




PATCH: parisc: use sort() instead of home-made implementation (v2)

Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 69dad5a..9dbefa8 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/kallsyms.h>
+#include <linux/sort.h>
 
 #include <asm/uaccess.h>
 #include <asm/assembly.h>
@@ -115,24 +116,18 @@ unwind_table_init(struct unwind_table *table, const char *name,
 	}
 }
 
+static int cmp_unwind_table_entry(const void *a, const void *b)
+{
+	return ((const struct unwind_table_entry *)a)->region_start
+	     - ((const struct unwind_table_entry *)b)->region_start;
+}
+
 static void
 unwind_table_sort(struct unwind_table_entry *start,
 		  struct unwind_table_entry *finish)
 {
-	struct unwind_table_entry el, *p, *q;

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From: Grant Grundler <grundler@parisc-linux.org>
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[ sorry - didn't realize I hit "reply" instead of "reply-all" ]

On Fri, Nov 06, 2009 at 04:54:05PM -0700, Grant Grundler wrote:
> On Fri, Nov 06, 2009 at 09:37:31PM +0100, Helge Deller wrote:
> > Hi Grant,
> >
> > Thanks for your answers!!!
> ...
> >> IIRC, the graphics frame buffers are routed by every Elroy ELMMIO register
> >> on all 4 Elroys. If you can get the machine to NOT HPMC,
> >> ELMMIO resources should be listed in /proc/iomem for workstations.
> >
> > Ok, the good thing is, that it doesn't HPMCs.
> > But sadly I have no clue about what you write above :-(
> 
> Heh...Here is a short and probably inadequate explanation.
> 
> Elroy has 3 MMIO range registers that determine which physical
> addresses will get routed down to the PCI bus:
>    LMMIO  32-bit MMIO address range
>    ELMMIO "Extra" 32-bit MMIO address range
>    GMMIO  64-bit MMIO address range
> 
> The Astro that is upstream (via ropes) is also programmed to route
> specific addresses to specific Elroy devices. Including the ELMMIO
> and GMMIO ranges.
> 
> The upstream routing is essentially the negative decoding of the
> downstream routing. So if f9000000-f9ffffff is routed down to
> elroy with PCI01, then any addresses generated by the PCI devices
> OUTSIDE of that range will get routed upstream since Elroy
> is designed to believe there is no device on that bus that will
> respond to addresses outside that range.
> 
> It might be easiest to think of each MMIO transaction (read or write)
> as a network packet traversing a fabric and the MMIO address is
> the equivalent to an IP address. Each component in the path has
> a "routing table" (one or more MMIO range registers) to decide
> what to do with the packet.
> 
> >
> > Syslog says:
> > SBA found Astro 2.1 at 0xfed00000
> > Elroy version TR4.0 (0x5) found at 0xfed30000
> > PCI: Enabled native mode for NS87415 (pif=0x8f)
> > Elroy version TR4.0 (0x5) found at 0xfed32000
> > pci 0000:01:04.0: BAR 0: no parent found for of device [0xfa000000-0xfbffffff]
> > iosapic: hpa not registered for 0000:01:04.0
> > iosapic: hpa not registered for 0000:01:05.0
> > Elroy version TR4.0 (0x5) found at 0xfed38000
> > Elroy version TR4.0 (0x5) found at 0xfed3c000
> > iosapic: hpa not registered for 0000:03:02.0
> > powersw: Soft power switch at 0xf0400804 enabled.
> >
> >
> > Maybe it's important, that 2 Elroys are detected before the BAR0 message and 2 afterwards?
> 
> Yes, I think it is. There are two ELMMIO ranges being routed to PCI01 and
> PCI03.  Need to determine if those are the right PCI busses (ergo Elroy)
> for those devices and that the same resources are available in the kernel
> that is failing to boot. Just hack lba_pci.c to dump more info about
> the address routing while it's booting.
> 
> 
> >
> > and here is /proc/iomem:
> > root@c3000:~# cat /proc/iomem
> > 00000000-7fffffff : System RAM
> >   00000000-000009ff : PDC data (Page Zero)
> >   00100000-00602fff : Kernel code
> >   00603000-0073bfff : Kernel data
> > f05d0000-f05d0000 : lcd_data
> > f05d0008-f05d0008 : lcd_cmd
> > f2000000-f23fffff : PCI00 LMMIO
> >   f2000000-f2001fff : 0000:00:0f.1
> >     f2000000-f2001fff : sym53c8xx
> >   f2002000-f2003fff : 0000:00:0f.0
> >     f2002000-f2003fff : sym53c8xx
> >   f2004000-f20043ff : 0000:00:0f.1
> >     f2004000-f20043ff : sym53c8xx
> >   f2005000-f20053ff : 0000:00:0f.0
> >     f2005000-f20053ff : sym53c8xx
> >   f2006000-f2006fff : 0000:00:0e.2
> >   f2007000-f2007fff : 0000:00:0e.2
> >     f2007000-f2007fff : ohci_hcd
> >   f2008000-f20083ff : 0000:00:0c.0
> >     f2008000-f20083ff : tulip
> >   f2009000-f200900f : 0000:00:0d.0
> >   f200a000-f200a00f : 0000:00:0d.0
> >   f200b000-f200b00f : 0000:00:0d.0
> >   f200c000-f200c1ff : 0000:00:0d.0
> >   f2040000-f207ffff : 0000:00:0c.0
> > f2400000-f27fffff : PCI01 LMMIO
> >   f2400000-f240ffff : 0000:01:04.0
> > f3000000-f33fffff : PCI02 LMMIO
> >   f3000000-f3003fff : 0000:02:01.0
> >   f3004000-f300407f : 0000:02:03.0
> >     f3004000-f300407f : tulip
> >   f3040000-f307ffff : 0000:02:03.0
> > f3800000-f3bfffff : PCI03 LMMIO
> >   f3800000-f39fffff : 0000:03:02.0
> > f6000000-f7ffffff : PCI03 ELMMIO
> >   f6000000-f7ffffff : 0000:03:02.0
> > f9000000-f9ffffff : PCI01 ELMMIO
> >   f9000000-f9ffffff : 0000:01:05.0
> 
> I suspect how these are parented has changed.
> IIRC, Astro already "owns" this resource - but they aren't PCI devices.
> I don't recall offhand how the resource is (if at all) advertised and
> which Elroy's can even claim specific MMIO ranges.
> 
> If the "fb at f6000000 (32 MB)" is coming from the PCI03 Elroy, then
> you can be sure the MMIO resource is not being advertised correctly.
> But the output below suggests its from PCI bus 1 (== PCI01 ? need to check).
> 
> hth,
> grant
> 
> > fed00000-fed00fff : 10
> > fed30000-fed30fff : 10:0
> > fed32000-fed32fff : 10:1
> > fed38000-fed38fff : 10:4
> > fed3c000-fed3cfff : 10:6
> > fef00000-feffffff : Astro Intr Ack
> > fff80000-fffaffff : Central Bus
> >   fffa0000-fffa0fff : 32
> > fffb0000-fffdffff : Local Broadcast
> > fffe0000-ffffffff : Global Broadcast
> >
> >
> >
> >>> ...
> >>> STI GSC/PCI core graphics driver Version 0.9a
> >>> sti 0000:01:04.0: device not available because of BAR 0 [0xfa000000-0xfbffffff] collisions
> >>> sti 0000:01:04.0: Cannot enable PCI device
> >>> 			^^^ HERE
> >>> sti: probe of 0000:01:04.0 failed with error -22
> >>> STI PCI graphic ROM found at f3800000 (2048 kB), fb at f6000000 (32 MB)
> >>>      id 35acda30-9a02587, conforms to spec rev. 8.0d
> >>>      graphics card name: A1262A
> >>> sticon: Initializing STI text console.
> >>> Console: switching to colour STI console 128x48
> >>> stifb: 'A1262A' (id: 0x35acda30) not supported.
> >>> Linux agpgart interface v0.103
> >>> ....
> >>>
> >>> Hopefully someone of you has an idea what caused this change?
> >>
> >> The automatic resource parenting code has changed a few times back
> >> and forth over the last 2-3 major releases. I've lost track
> >> but suspect it's probably easier to just look at what the
> >> LBA range registers say (set up by PDC) and then get the PCI subsystem
> >> to advertise those resources in a reasonable way.
> >
> > How can I see/check the LBA range registers?
> > Where is the advertising done?
> > Sorry, but I have no clue about PCI/LBA/Elroy/... ?
> >
> >> TBH, I'd rather spent a few hours this weekend debugging the PCI-PCI bridge
> >> support on PAT machines.
> >
> > Understood.
> > Any hints or untested patches would be great though...
> >
> >> hth,
> >> grant
> >
> > Thanks,
> > Helge
> >
> >
> >>
> >>>
> >>> lspci reports:
> >>> 01:04.0 Display controller: Hewlett-Packard Company A4977A Visualize EG (rev 03)
> >>>          Flags: 66MHz, medium devsel
> >>>          Memory at fa000000 (32-bit, non-prefetchable) [size=32M]
> >>>          Expansion ROM at f2400000 [disabled] [size=64K]
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From - Thu Nov 08 21:05:08 2018
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To: Helge Deller <deller@gmx.de>
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On Sat, Nov 07, 2009 at 12:07:42AM +0100, Helge Deller wrote:
> Kyle, I see you applied my original patch into your "next" tree already:
> http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commit;h=b8d46862d910c3be7c28c627204da968c174aa9a
> 
> Do you want me to send you a new patch against your "next" tree instead?

It's ok, I'll just revert that one and apply this one on top of it.

Punch me if I haven't gotten around to this by Monday.

cheers, Kyle
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From - Thu Nov 08 21:05:08 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: gcj port to hppa...
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To: linux-parisc <linux-parisc@vger.kernel.org>,
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Dave,

The gcj port to hppa uses a locking implementation
(libjava/sysdeps/pa/locks.h) which is not signal safe.

The assembly can be interrupted by a signal which if it calls
compare_and_swap again will deadlock. However, I can't tell if this
will ever happen.

The fix for this is to port the lock implementation to use the
light-weight in-kernel compare-and-swap, which is thread-safe and
signal-safe. However, this is only available for Linux.

Does locks.h also need to work for HPUX?

Cheers,
Carlos.
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From - Thu Nov 08 21:05:08 2018
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Subject: Re: [patch 10/16] parisc: Replace old style lock init
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On Fri, Nov 06, 2009 at 10:41:51PM -0000, Thomas Gleixner wrote:
> SPIN_LOCK_UNLOCKED is deprecated. Init the per cpu locks at runtime
> instead.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: linux-parisc@vger.kernel.org

applied with one nit.

>  
> -DEFINE_SPINLOCK(smp_lock);
> -

You forgot to mention this was unused. :) Confused me for a while.

cheers, Kyle

>  volatile struct task_struct *smp_init_current_idle_task;
>  
>  /* track which CPU is booting */
> @@ -69,7 +67,7 @@ static volatile int cpu_now_booting __cp
>  
>  static int parisc_max_cpus __cpuinitdata = 1;
>  
> -DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
> +static DEFINE_PER_CPU(spinlock_t, ipi_lock);
>  
>  enum ipi_message_type {
>  	IPI_NOP=0,
> @@ -438,6 +436,11 @@ void __init smp_prepare_boot_cpu(void)
>  */
>  void __init smp_prepare_cpus(unsigned int max_cpus)
>  {
> +	int cpu;
> +
> +	for_each_possible_cpu(cpu)
> +		spin_lock_init(&per_cpu(ipi_lock, cpu));
> +
>  	init_cpu_present(cpumask_of(0));
>  
>  	parisc_max_cpus = max_cpus;
> 
> 
> 
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On Sun, 8 Nov 2009, Kyle McMartin wrote:

> On Fri, Nov 06, 2009 at 10:41:51PM -0000, Thomas Gleixner wrote:
> > SPIN_LOCK_UNLOCKED is deprecated. Init the per cpu locks at runtime
> > instead.
> > 
> > Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> > Cc: Kyle McMartin <kyle@mcmartin.ca>
> > Cc: linux-parisc@vger.kernel.org
> 
> applied with one nit.
> 
> >  
> > -DEFINE_SPINLOCK(smp_lock);
> > -
> 
> You forgot to mention this was unused. :) Confused me for a while.

Gah. Wanted to add it to the changelog, but slipped from my mind.

Sorry for the confusion,

	tglx
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Subject: Re: [dm-devel] [PATCH v4 00/12] introduce
 skip_spaces(), reducing code size plus some clean-ups
Date: Sun, 08 Nov 2009 10:05:03 -0600
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On Sat, 2009-11-07 at 13:16 -0200, Andr=C3=A9 Goddard Rosa wrote:
> This patch reduces lib.a code size by 173 bytes on my Core 2 with gcc 4=
.4.1
> even considering that it exports a newly defined function skip_spaces()
> to drivers:
>    text    data     bss     dec     hex filename                       =
   =20
>   64867     840     592   66299   102fb (TOTALS-lib.a-before)
>   64954     584     588   66126   1024e (TOTALS-lib.a-after)
> and implements some code tidy up.
>=20
> Besides reducing lib.a size, it converts many in-tree drivers to use th=
e
> newly defined function, which makes another small reduction on kernel s=
ize
> overall when those drivers are used.

Before we embark on something as massive as this, could we take a step
back.  I agree that if I were coming up with the strstip() interface
today I probably wouldn't have given it two overloaded uses.

However, I think the function, in spite of this minor issue, is very
usable.  I still don't understand why people thought adding a
__must_check, which is what damaged one of the overloaded uses, is a
good idea.

Assuming there's a good answer to the above:

> + * skip_spaces - Removes leading whitespace from @s.
> + * @s: The string to be stripped.
> + *
> + * Returns a pointer to the first non-whitespace character in @s.
> + */
> +const char *skip_spaces(const char *str)

I don't think const return is a good idea because most functions will be
manipulating the string and using pointers that won't be const, so this
will generate a ton of 'initialization discards qualifiers from pointer
target type' ... so that leads to the question of whether this patch
series was actually compiled ...

James



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Subject: Re: [dm-devel] [PATCH v4 00/12] introduce
	skip_spaces(), reducing code size plus some clean-ups
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2313>

Hi, James!

On Sun, Nov 8, 2009 at 2:05 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Sat, 2009-11-07 at 13:16 -0200, Andr=E9 Goddard Rosa wrote:
>> This patch reduces lib.a code size by 173 bytes on my Core 2 with gcc =
4.4.1
>> even considering that it exports a newly defined function skip_spaces(=
)
>> to drivers:
>> =A0 =A0text =A0 =A0data =A0 =A0 bss =A0 =A0 dec =A0 =A0 hex filename
>> =A0 64867 =A0 =A0 840 =A0 =A0 592 =A0 66299 =A0 102fb (TOTALS-lib.a-be=
fore)
>> =A0 64954 =A0 =A0 584 =A0 =A0 588 =A0 66126 =A0 1024e (TOTALS-lib.a-af=
ter)
>> and implements some code tidy up.
>>
>> Besides reducing lib.a size, it converts many in-tree drivers to use t=
he
>> newly defined function, which makes another small reduction on kernel =
size
>> overall when those drivers are used.
>
> Before we embark on something as massive as this, could we take a step
> back. =A0I agree that if I were coming up with the strstip() interface
> today I probably wouldn't have given it two overloaded uses.
>
> However, I think the function, in spite of this minor issue, is very
> usable. =A0I still don't understand why people thought adding a
> __must_check, which is what damaged one of the overloaded uses, is a
> good idea.

Differently of "static void strip(char *str)"@scripts/kconfig/conf.c ,
this function
does not moves the characters to the beginning of the string, so that if =
that
string is going to be reused it should refer to the newly returned string=
 start.

I've changed it to remove the const and return a "char *".

Do you think __must_check is not needed as well?

Thanks,
Andr=E9


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Subject: Re: [PATCH v4 10/12] string: factorize skip_spaces
 and export it to be generally available
Date: Sun, 8 Nov 2009 16:50:00 +0000
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Cc: Andreas Dilger <adilger@sun.com>, Mike Snitzer <snitzer@redhat.com>,
	Takashi Iwai <tiwai@suse.de>, Kysela <perex@perex.cz>, Jan,
	Stefan Weinhuber <wein@de.ibm.com>,
	Eric Sandeen <sandeen@redhat.com>, "James E .
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	Al Viro <viro@zeniv.linux.org.uk>, Thomas Gleixner <tglx@linutronix.de>,
	Engelhardt <jengelh@medozas.de>,
	Bjorn Helgaas <bjorn.helgaas@hp.com>, =?ISO-8859-14?B?QW5k?=, "Martin K .
	Petersen" <martin.petersen@oracle.com>, linux-kernel@vger.kernel.org,
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	netfilter-devel@vger.kernel.org, Joe Perches <joe@perches.com>,
	Andrew Morton <akpm@linux-foundation.org
To: =?ISO-8859-14?B?QW5kcuk=?= Goddard Rosa <andre.goddard@gmail.com>
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On Sat,  7 Nov 2009 13:16:18 -0200
Andr=E9 Goddard Rosa <andre.goddard@gmail.com> wrote:

> On the following sentence:
>     while (*s && isspace(*s))
>         s++;

Looks fine but for one thing: it's actually shorter inline than moved
into /lib so at the very least it should be a header inline not a
function call.

Second minor comment. Although it never made it into the final ANSI C,
the proposed name (and the one used in a lot of other non Linux code for
this) is stpblk().

Alan


From - Thu Nov 08 21:05:08 2018
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> The gcj port to hppa uses a locking implementation
> (libjava/sysdeps/pa/locks.h) which is not signal safe.

Yes.  Is this the gcj problem that you were seeing with nptl?

> The assembly can be interrupted by a signal which if it calls
> compare_and_swap again will deadlock. However, I can't tell if this
> will ever happen.
> 
> The fix for this is to port the lock implementation to use the
> light-weight in-kernel compare-and-swap, which is thread-safe and
> signal-safe. However, this is only available for Linux.

I would say the linux implementation should uses the gcc atomic builtins.
They are based on the kernel compare-and-swap.

> Does locks.h also need to work for HPUX?

Yes.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Nov 8, 2009 at 1:40 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> The gcj port to hppa uses a locking implementation
>> (libjava/sysdeps/pa/locks.h) which is not signal safe.
>
> Yes. =A0Is this the gcj problem that you were seeing with nptl?

No it is not, but I noticed this during my investigations. I might as
well fix it while I'm poking about.

>> The assembly can be interrupted by a signal which if it calls
>> compare_and_swap again will deadlock. However, I can't tell if this
>> will ever happen.
>>
>> The fix for this is to port the lock implementation to use the
>> light-weight in-kernel compare-and-swap, which is thread-safe and
>> signal-safe. However, this is only available for Linux.
>
> I would say the linux implementation should uses the gcc atomic built=
ins.
> They are based on the kernel compare-and-swap.

Oh, that's a perefect idea, I wasn't sure that libjava could make use
of those atomic builtins.

Doesn't this restrict the gcc version you can use to rebuild libjava?
Is that OK?

>> Does locks.h also need to work for HPUX?
>
> Yes.

OK, how do I write conditional code for HPUX vs. Linux?

Cheers,
Carlos.
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> On Sun, Nov 8, 2009 at 1:40 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> >> The gcj port to hppa uses a locking implementation
> >> (libjava/sysdeps/pa/locks.h) which is not signal safe.
> >
> > Yes. =A0Is this the gcj problem that you were seeing with nptl?
> 
> No it is not, but I noticed this during my investigations. I might as
> well fix it while I'm poking about.

There's similar code in libstdc++.

> Oh, that's a perefect idea, I wasn't sure that libjava could make use
> of those atomic builtins.
> 
> Doesn't this restrict the gcc version you can use to rebuild libjava?
> Is that OK?

In my opinion, yes.

> >> Does locks.h also need to work for HPUX?
> >
> > Yes.
> 
> OK, how do I write conditional code for HPUX vs. Linux?

Check __linux and/or __hpux.  Look at the arm code.  It looks
like they have done this.  So, you should just be able to copy
what they have done.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Nov 8, 2009 at 1:58 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> On Sun, Nov 8, 2009 at 1:40 PM, John David Anglin
>> <dave@hiauly1.hia.nrc.ca> wrote:
>> >> The gcj port to hppa uses a locking implementation
>> >> (libjava/sysdeps/pa/locks.h) which is not signal safe.
>> >
>> > Yes. =3DA0Is this the gcj problem that you were seeing with nptl?
>>
>> No it is not, but I noticed this during my investigations. I might a=
s
>> well fix it while I'm poking about.
>
> There's similar code in libstdc++.

Where? I'll fix that case too.

BTW, the gcj problem looks like a missing _STACK_GROWS_UP case in boehm=
-gc.

>> Oh, that's a perefect idea, I wasn't sure that libjava could make us=
e
>> of those atomic builtins.
>>
>> Doesn't this restrict the gcc version you can use to rebuild libjava=
?
>> Is that OK?
>
> In my opinion, yes.

Is that OK?

>> >> Does locks.h also need to work for HPUX?
>> >
>> > Yes.
>>
>> OK, how do I write conditional code for HPUX vs. Linux?
>
> Check __linux and/or __hpux. =A0Look at the arm code. =A0It looks
> like they have done this. =A0So, you should just be able to copy
> what they have done.

Thanks.

Cheers,
Carlos.
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Subject: Re: gcj port to hppa...
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To: carlos@systemhalted.org (Carlos O'Donell)
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> > There's similar code in libstdc++.
> 
> Where? I'll fix that case too.

config/cpu/hppa/atomicity.h.  On linux, we probably want to use
config/cpu/generic/atomicity_builtins/atomicity.h.  However, I'm
not sure the current configure checks work correctly for library
implementations.

On hpux, we probably should switch to using
config/cpu/generic/atomicity_mutex/atomicity.h and get rid of the hppa
specific implementation.  Originally, there wasn't any locking in the
generic code.

> BTW, the gcj problem looks like a missing _STACK_GROWS_UP case in boehm-gc.
> 
> >> Oh, that's a perefect idea, I wasn't sure that libjava could make use
> >> of those atomic builtins.
> >>
> >> Doesn't this restrict the gcc version you can use to rebuild libjava?
> >> Is that OK?
> >
> > In my opinion, yes.
> 
> Is that OK?

I can approve any change that is hppa specific.  There's also a precedent
in the arm implementation.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:09 2018
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Newsgroups: gmane.linux.file-systems.cachefs.general,gmane.linux.acpi.ibm-acpi.devel,gmane.linux.kernel.device-mapper.devel,gmane.comp.file-systems.ext4,gmane.linux.alsa.devel,gmane.linux.uml.devel,gmane.linux.raid,gmane.linux.uml.user,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel,gmane.comp.security.firewalls.netfilter.general
Subject: Re: [PATCH v4 12/12] tree-wide: convert open calls
	to remove spaces to skip_spaces() lib function
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Cc: Pavel Roskin <proski@gnu.org>,
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	Jan Kara <jack@suse.cz>, linux-cachefs@redhat.com,
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	Ingo Molnar <mingo@redhat.com>, Alan Cox <alan@lxorguk.ukuu.org.uk
To: =?iso-8859-1?Q?Andr=E9?= Goddard Rosa <andre.goddard@gmail.com>
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On Sat, Nov 07, 2009 at 01:16:20PM -0200, Andr=E9 Goddard Rosa wrote:
> Makes use of skip_spaces() defined in lib/string.c for removing leading
> spaces from strings all over the tree.
>=20
> Also, while at it, if we see (*str && isspace(*str)), we can be sure to
> remove the first condition (*str) as the second one (isspace(*str)) als=
o
> evaluates to 0 whenever *str =3D=3D 0, making it redundant. In other wo=
rds,
> "a char equals zero is never a space".

There are a number of places that have the pattern of skipping
whitespace, calling simpler_strtoul(), and then skipping whitespace
afterwards.  And thinkpad_acpi.c and fs/ext4/super.c both have an
indentical function, parse_strotul(), which basically does this plus
doing actual error checking (a number of callers of simple_strtoul
aren't checking to see if the user passed in a valid number or not,
boo.)

I would suggest that we should lift parse_strtoul() into lib/, both to
save a bit of code, as well as encouraging people to do proper input
validation, while we are doing this tree-wide cleanup.

						- Ted


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Subject: Re: [PATCH v4 12/12] tree-wide: convert open calls
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To: Theodore Tso <tytso@mit.edu>
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> > Also, while at it, if we see (*str && isspace(*str)), we can be sure to
> > remove the first condition (*str) as the second one (isspace(*str)) also
> > evaluates to 0 whenever *str == 0, making it redundant. In other words,
> > "a char equals zero is never a space".

I tried the following semantic patch (http://coccinelle.lip6.fr), and got 
the results below.

@@
expression str;
@@

( // ignore skip_spaces cases
 while (*str &&  isspace(*str)) { \(str++;\|++str;\) }
|
- *str && 
  isspace(*str)
)

I haven't checked the results in any way, however.

julia

diff -u -p a/drivers/leds/led-class.c b/drivers/leds/led-class.c
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -50,7 +50,7 @@ static ssize_t led_brightness_store(stru
 	unsigned long state = simple_strtoul(buf, &after, 10);
 	size_t count = after - buf;
 
-	if (*after && isspace(*after))
+	if (isspace(*after))
 		count++;
 
 	if (count == size) {
diff -u -p a/drivers/leds/ledtrig-timer.c b/drivers/leds/ledtrig-timer.c
--- a/drivers/leds/ledtrig-timer.c
+++ b/drivers/leds/ledtrig-timer.c
@@ -83,7 +83,7 @@ static ssize_t led_delay_on_store(struct
 	unsigned long state = simple_strtoul(buf, &after, 10);
 	size_t count = after - buf;
 
-	if (*after && isspace(*after))
+	if (isspace(*after))
 		count++;
 
 	if (count == size) {
@@ -127,7 +127,7 @@ static ssize_t led_delay_off_store(struc
 	unsigned long state = simple_strtoul(buf, &after, 10);
 	size_t count = after - buf;
 
-	if (*after && isspace(*after))
+	if (isspace(*after))
 		count++;
 
 	if (count == size) {
diff -u -p a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
--- a/drivers/video/backlight/lcd.c
+++ b/drivers/video/backlight/lcd.c
@@ -101,7 +101,7 @@ static ssize_t lcd_store_power(struct de
 	int power = simple_strtoul(buf, &endp, 0);
 	size_t size = endp - buf;
 
-	if (*endp && isspace(*endp))
+	if (isspace(*endp))
 		size++;
 	if (size != count)
 		return -EINVAL;
@@ -140,7 +140,7 @@ static ssize_t lcd_store_contrast(struct
 	int contrast = simple_strtoul(buf, &endp, 0);
 	size_t size = endp - buf;
 
-	if (*endp && isspace(*endp))
+	if (isspace(*endp))
 		size++;
 	if (size != count)
 		return -EINVAL;
diff -u -p a/drivers/video/display/display-sysfs.c b/drivers/video/display/display-sysfs.c
--- a/drivers/video/display/display-sysfs.c
+++ b/drivers/video/display/display-sysfs.c
@@ -67,7 +67,7 @@ static ssize_t display_store_contrast(st
 	contrast = simple_strtoul(buf, &endp, 0);
 	size = endp - buf;
 
-	if (*endp && isspace(*endp))
+	if (isspace(*endp))
 		size++;
 
 	if (size != count)
diff -u -p a/drivers/video/output.c b/drivers/video/output.c
--- a/drivers/video/output.c
+++ b/drivers/video/output.c
@@ -50,7 +50,7 @@ static ssize_t video_output_store_state(
 	int request_state = simple_strtoul(buf,&endp,0);
 	size_t size = endp - buf;
 
-	if (*endp && isspace(*endp))
+	if (isspace(*endp))
 		size++;
 	if (size != count)
 		return -EINVAL;


From - Thu Nov 08 21:05:10 2018
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Subject: Re: hanging kernel - HPMC problem
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Carlos O'Donell pisze:
> I suggest:
> * Remove all add-on cards from the hardware.
> * Start with the generic config.
> * Enable one thing at a time until it stops working.
> * Come back to the list with a list of config options that don't work.
> 
> It's a slow and tedious process, but that's the only "easy" way to
> solve the problem.

Actually, the only additional hardware is 2x 3COM network cards.
Unfortunately, after removing them from the server my custom kernel also 
hung with 'HPMC bus timeout'.
I will do as you advise, and try to remove one option at once in the 
kernel config.
Anyway, thanks for your help.

Marek Denis
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On Tue, Nov 03, 2009 at 10:00:39PM +0100, Helge Deller wrote:
> Hi all,

hi,

> Something broke the stifb graphics driver in 2.6.32-rc5 (Linus' current head).

mine was a PCI controller for additional USB ports or maybe the MGA
graphic controller, i don't rememer. i will check ;)

> Somehow it seems, that the PCI subsystem does not activate this PCI slot:
> 
> Linux version 2.6.32-rc5-32bit (deller@p100) (gcc version 4.4.1 (GCC) ) #157 Tue Nov 3 21:49:24 CET 2009
> ...
> Searching for devices...
> Found devices:
> 1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
> 2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
> 3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
> 4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
> 5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
> 6. Allegro W2 at 0xfffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
> 7. Memory at 0xfed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
> CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
> Setting cache flush threshold to 780 (1 CPUs online)
> SBA found Astro 2.1 at 0xfed00000
> Elroy version TR4.0 (0x5) found at 0xfed30000
> PCI: Enabled native mode for NS87415 (pif=0x8f)
> Elroy version TR4.0 (0x5) found at 0xfed32000
> pci 0000:01:04.0: BAR 0: no parent found for of device [0xfa000000-0xfbffffff]
> 			^^^  HERE

i had a couple of these messages and also a couple of BAR collisions
on my J5600, recently booted with 2.6.32-rc6.

these threads seem related:

  http://lkml.org/lkml/2009/8/2/82
  http://lkml.org/lkml/2009/11/9/356

i will try to learn something new later, when I turn on my hppa box later.

cheers,
Domenic

-----[ Domenico Andreoli, aka cavok
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Another place where RCU can be used instead of read_lock(&dev_base_lock)
This is by inspection, don't have platform or cross-build environment
to validate.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>


--- a/drivers/parisc/led.c	2009-11-09 22:19:07.223480872 -0800
+++ b/drivers/parisc/led.c	2009-11-10 09:28:38.279438787 -0800
@@ -354,9 +354,8 @@ static __inline__ int led_get_net_activi
 	
 	/* we are running as a workqueue task, so locking dev_base 
 	 * for reading should be OK */
-	read_lock(&dev_base_lock);
 	rcu_read_lock();
-	for_each_netdev(&init_net, dev) {
+	for_each_netdev_rcu(&init_net, dev) {
 	    const struct net_device_stats *stats;
 	    struct in_device *in_dev = __in_dev_get_rcu(dev);
 	    if (!in_dev || !in_dev->ifa_list)
@@ -368,7 +367,6 @@ static __inline__ int led_get_net_activi
 	    tx_total += stats->tx_packets;
 	}
 	rcu_read_unlock();
-	read_unlock(&dev_base_lock);
 
 	retval = 0;
 

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Stephen Hemminger a =E9crit :
> Another place where RCU can be used instead of read_lock(&dev_base_lo=
ck)
> This is by inspection, don't have platform or cross-build environment
> to validate.
>=20
> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
>=20

Duplicate of previously posted patch...

http://article.gmane.org/gmane.linux.network/143072



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On 11/07/2009 12:55 AM, Grant Grundler wrote:
> On Fri, Nov 06, 2009 at 04:54:05PM -0700, Grant Grundler wrote:
>> On Fri, Nov 06, 2009 at 09:37:31PM +0100, Helge Deller wrote:
>>>> IIRC, the graphics frame buffers are routed by every Elroy ELMMIO register
>>>> on all 4 Elroys. If you can get the machine to NOT HPMC,
>>>> ELMMIO resources should be listed in /proc/iomem for workstations.
>>>
>>> Ok, the good thing is, that it doesn't HPMCs.
>>> But sadly I have no clue about what you write above :-(
>>
>> Heh...Here is a short and probably inadequate explanation.
>>
>> Elroy has 3 MMIO range registers that determine which physical
>> addresses will get routed down to the PCI bus:
>>     LMMIO  32-bit MMIO address range
>>     ELMMIO "Extra" 32-bit MMIO address range
>>     GMMIO  64-bit MMIO address range
>>
>> The Astro that is upstream (via ropes) is also programmed to route
>> specific addresses to specific Elroy devices. Including the ELMMIO
>> and GMMIO ranges.
>>
>> The upstream routing is essentially the negative decoding of the
>> downstream routing. So if f9000000-f9ffffff is routed down to
>> elroy with PCI01, then any addresses generated by the PCI devices
>> OUTSIDE of that range will get routed upstream since Elroy
>> is designed to believe there is no device on that bus that will
>> respond to addresses outside that range.
>>
>> It might be easiest to think of each MMIO transaction (read or write)
>> as a network packet traversing a fabric and the MMIO address is
>> the equivalent to an IP address. Each component in the path has
>> a "routing table" (one or more MMIO range registers) to decide
>> what to do with the packet.
>>
>>>
>>> Syslog says:
>>> SBA found Astro 2.1 at 0xfed00000
>>> Elroy version TR4.0 (0x5) found at 0xfed30000
>>> PCI: Enabled native mode for NS87415 (pif=0x8f)
>>> Elroy version TR4.0 (0x5) found at 0xfed32000
>>> pci 0000:01:04.0: BAR 0: no parent found for of device [0xfa000000-0xfbffffff]
>>> iosapic: hpa not registered for 0000:01:04.0
>>> iosapic: hpa not registered for 0000:01:05.0
>>> Elroy version TR4.0 (0x5) found at 0xfed38000
>>> Elroy version TR4.0 (0x5) found at 0xfed3c000
>>> iosapic: hpa not registered for 0000:03:02.0
>>> powersw: Soft power switch at 0xf0400804 enabled.
>>>
>>>
>>> Maybe it's important, that 2 Elroys are detected before the BAR0 message and 2 afterwards?
>>
>> Yes, I think it is. There are two ELMMIO ranges being routed to PCI01 and
>> PCI03.  Need to determine if those are the right PCI busses (ergo Elroy)
>> for those devices and that the same resources are available in the kernel
>> that is failing to boot. Just hack lba_pci.c to dump more info about
>> the address routing while it's booting.

I added the patch from Matthew from http://lkml.org/lkml/2009/8/2/106.
Here is the log. Does this helps?

Elroy version TR4.0 (0x5) found at 0xfed30000
PCI: Enabled native mode for NS87415 (pif=0x8f)
Inserting resource 0000:00:0c.0 [0x1000-0x107f] (BAR 0) inside resource PCI00 Ports [0x00-0x1fff]
Inserting resource 0000:00:0c.0 [0xf2008000-0xf20083ff] (BAR 1) inside resource PCI00 LMMIO [0xf2000000-0xf23fffff]
Inserting resource 0000:00:0c.0 [0xf2040000-0xf207ffff] (BAR 6) inside resource PCI00 LMMIO [0xf2000000-0xf23fffff]
Inserting resource 0000:00:0d.0 [0xf200c000-0xf200c1ff] (BAR 0) inside resource PCI00 LMMIO [0xf2000000-0xf23fffff]
Inserting resource 0000:00:0d.0 [0xf200b000-0xf200b00f] (BAR 1) inside resource PCI00 LMMIO [0xf2000000-0xf23fffff]
Inserting resource 0000:00:0d.0 [0xf200a000-0xf200a00f] (BAR 2) inside resource PCI00 LMMIO [0xf2000000-0xf23fffff]
Inserting resource 0000:00:0d.0 [0xf2009000-0xf200900f] (BAR 3) inside resource PCI00 LMMIO [0xf2000000-0xf23fffff]
Inserting resource 0000:00:0e.0 [0xf00-0xf07] (BAR 0) inside resource PCI00 Ports [0x00-0x1fff]
Inserting resource 0000:00:0e.0 [0xe00-0xe03] (BAR 1) inside resource PCI00 Ports [0x00-0x1fff]
Inserting resource 0000:00:0e.0 [0xd00-0xd07] (BAR 2) inside resource PCI00 Ports [0x00-0x1fff]
Inserting resource 0000:00:0e.0 [0xb00-0xb03] (BAR 3) inside resource PCI00 Ports [0x00-0x1fff]
Inserting resource 0000:00:0e.0 [0xa00-0xa0f] (BAR 4) inside resource PCI00 Ports [0x00-0x1fff]
Inserting resource 0000:00:0e.2 [0xf2007000-0xf2007fff] (BAR 0) inside resource PCI00 LMMIO [0xf2000000-0xf23fffff]
Inserting resource 0000:00:0e.2 [0xf2006000-0xf2006fff] (BAR 1) inside resource PCI00 LMMIO [0xf2000000-0xf23fffff]
Inserting resource 0000:00:0f.0 [0x900-0x9ff] (BAR 0) inside resource PCI00 Ports [0x00-0x1fff]
Inserting resource 0000:00:0f.0 [0xf2005000-0xf20053ff] (BAR 1) inside resource PCI00 LMMIO [0xf2000000-0xf23fffff]
Inserting resource 0000:00:0f.0 [0xf2002000-0xf2003fff] (BAR 3) inside resource PCI00 LMMIO [0xf2000000-0xf23fffff]
Inserting resource 0000:00:0f.1 [0x800-0x8ff] (BAR 0) inside resource PCI00 Ports [0x00-0x1fff]
Inserting resource 0000:00:0f.1 [0xf2004000-0xf20043ff] (BAR 1) inside resource PCI00 LMMIO [0xf2000000-0xf23fffff]
Inserting resource 0000:00:0f.1 [0xf2000000-0xf2001fff] (BAR 3) inside resource PCI00 LMMIO [0xf2000000-0xf23fffff]
Elroy version TR4.0 (0x5) found at 0xfed32000
No parent found for resource 0000:01:04.0 [0xfa000000-0xfbffffff]
pci 0000:01:04.0: BAR 0: no parent found for of device [0xfa000000-0xfbffffff]
Inserting resource 0000:01:04.0 [0xf2400000-0xf240ffff] (BAR 6) inside resource PCI01 LMMIO [0xf2400000-0xf27fffff]
iosapic: hpa not registered for 0000:01:04.0
Inserting resource 0000:01:05.0 [0xf9000000-0xf9ffffff] (BAR 0) inside resource PCI01 ELMMIO [0xf9000000-0xf9ffffff]
iosapic: hpa not registered for 0000:01:05.0
Elroy version TR4.0 (0x5) found at 0xfed38000
Inserting resource 0000:02:01.0 [0xf3000000-0xf3003fff] (BAR 0) inside resource PCI02 LMMIO [0xf3000000-0xf33fffff]
Inserting resource 0000:02:03.0 [0x28000-0x2807f] (BAR 0) inside resource PCI02 Ports [0x28000-0x29fff]
Inserting resource 0000:02:03.0 [0xf3004000-0xf300407f] (BAR 1) inside resource PCI02 LMMIO [0xf3000000-0xf33fffff]
Inserting resource 0000:02:03.0 [0xf3040000-0xf307ffff] (BAR 6) inside resource PCI02 LMMIO [0xf3000000-0xf33fffff]
Elroy version TR4.0 (0x5) found at 0xfed3c000
Inserting resource 0000:03:02.0 [0xf6000000-0xf7ffffff] (BAR 0) inside resource PCI03 ELMMIO [0xf6000000-0xf7ffffff]
Inserting resource 0000:03:02.0 [0xf3800000-0xf39fffff] (BAR 6) inside resource PCI03 LMMIO [0xf3800000-0xf3bfffff]
iosapic: hpa not registered for 0000:03:02.0


>>> and here is /proc/iomem:
>>> root@c3000:~# cat /proc/iomem
>>> 00000000-7fffffff : System RAM
>>>    00000000-000009ff : PDC data (Page Zero)
>>>    00100000-00602fff : Kernel code
>>>    00603000-0073bfff : Kernel data
>>> f05d0000-f05d0000 : lcd_data
>>> f05d0008-f05d0008 : lcd_cmd
>>> f2000000-f23fffff : PCI00 LMMIO
>>>    f2000000-f2001fff : 0000:00:0f.1
>>>      f2000000-f2001fff : sym53c8xx
>>>    f2002000-f2003fff : 0000:00:0f.0
>>>      f2002000-f2003fff : sym53c8xx
>>>    f2004000-f20043ff : 0000:00:0f.1
>>>      f2004000-f20043ff : sym53c8xx
>>>    f2005000-f20053ff : 0000:00:0f.0
>>>      f2005000-f20053ff : sym53c8xx
>>>    f2006000-f2006fff : 0000:00:0e.2
>>>    f2007000-f2007fff : 0000:00:0e.2
>>>      f2007000-f2007fff : ohci_hcd
>>>    f2008000-f20083ff : 0000:00:0c.0
>>>      f2008000-f20083ff : tulip
>>>    f2009000-f200900f : 0000:00:0d.0
>>>    f200a000-f200a00f : 0000:00:0d.0
>>>    f200b000-f200b00f : 0000:00:0d.0
>>>    f200c000-f200c1ff : 0000:00:0d.0
>>>    f2040000-f207ffff : 0000:00:0c.0
>>> f2400000-f27fffff : PCI01 LMMIO
>>>    f2400000-f240ffff : 0000:01:04.0
>>> f3000000-f33fffff : PCI02 LMMIO
>>>    f3000000-f3003fff : 0000:02:01.0
>>>    f3004000-f300407f : 0000:02:03.0
>>>      f3004000-f300407f : tulip
>>>    f3040000-f307ffff : 0000:02:03.0
>>> f3800000-f3bfffff : PCI03 LMMIO
>>>    f3800000-f39fffff : 0000:03:02.0
>>> f6000000-f7ffffff : PCI03 ELMMIO
>>>    f6000000-f7ffffff : 0000:03:02.0
>>> f9000000-f9ffffff : PCI01 ELMMIO
>>>    f9000000-f9ffffff : 0000:01:05.0
>>
>> I suspect how these are parented has changed.
>> IIRC, Astro already "owns" this resource - but they aren't PCI devices.
>> I don't recall offhand how the resource is (if at all) advertised and
>> which Elroy's can even claim specific MMIO ranges.
>>
>> If the "fb at f6000000 (32 MB)" is coming from the PCI03 Elroy, then
>> you can be sure the MMIO resource is not being advertised correctly.
>> But the output below suggests its from PCI bus 1 (== PCI01 ? need to check).
>>
>> hth,
>> grant
>>
>>> fed00000-fed00fff : 10
>>> fed30000-fed30fff : 10:0
>>> fed32000-fed32fff : 10:1
>>> fed38000-fed38fff : 10:4
>>> fed3c000-fed3cfff : 10:6
>>> fef00000-feffffff : Astro Intr Ack
>>> fff80000-fffaffff : Central Bus
>>>    fffa0000-fffa0fff : 32
>>> fffb0000-fffdffff : Local Broadcast
>>> fffe0000-ffffffff : Global Broadcast
>>>
>>>
>>>
>>>>> ...
>>>>> STI GSC/PCI core graphics driver Version 0.9a
>>>>> sti 0000:01:04.0: device not available because of BAR 0 [0xfa000000-0xfbffffff] collisions
>>>>> sti 0000:01:04.0: Cannot enable PCI device
>>>>> 			^^^ HERE
>>>>> sti: probe of 0000:01:04.0 failed with error -22
>>>>> STI PCI graphic ROM found at f3800000 (2048 kB), fb at f6000000 (32 MB)
>>>>>       id 35acda30-9a02587, conforms to spec rev. 8.0d
>>>>>       graphics card name: A1262A
>>>>> sticon: Initializing STI text console.
>>>>> Console: switching to colour STI console 128x48
>>>>> stifb: 'A1262A' (id: 0x35acda30) not supported.
>>>>> Linux agpgart interface v0.103
>>>>> ....
>>>>>
>>>>> Hopefully someone of you has an idea what caused this change?
>>>>
>>>> The automatic resource parenting code has changed a few times back
>>>> and forth over the last 2-3 major releases. I've lost track
>>>> but suspect it's probably easier to just look at what the
>>>> LBA range registers say (set up by PDC) and then get the PCI subsystem
>>>> to advertise those resources in a reasonable way.
>>>
>>> How can I see/check the LBA range registers?
>>> Where is the advertising done?
>>> Sorry, but I have no clue about PCI/LBA/Elroy/... ?
>>>
>>>> TBH, I'd rather spent a few hours this weekend debugging the PCI-PCI bridge
>>>> support on PAT machines.
>>>
>>> Understood.
>>> Any hints or untested patches would be great though...
>>>
>>>> hth,
>>>> grant
>>>
>>> Thanks,
>>> Helge
>>>
>>>
>>>>
>>>>>
>>>>> lspci reports:
>>>>> 01:04.0 Display controller: Hewlett-Packard Company A4977A Visualize EG (rev 03)
>>>>>           Flags: 66MHz, medium devsel
>>>>>           Memory at fa000000 (32-bit, non-prefetchable) [size=32M]
>>>>>           Expansion ROM at f2400000 [disabled] [size=64K]
>

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From: Stephen Hemminger <shemminger@vyatta.com>
Date: Tue, 10 Nov 2009 09:54:51 -0800

> Another place where RCU can be used instead of read_lock(&dev_base_lock)
> This is by inspection, don't have platform or cross-build environment
> to validate.
> 
> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>

Applied.
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John,

I need your help crafting some assembly for the early startup of the
dynamic linker.

During early startup we need to do some work *before* the GOT is relocated.

This means that static local variable accesses are handled via a
special wrapper e.g.
~~~
  struct local *l;

  ELF_MACHINE_LOAD_ADDRESS (l, local);

 retry:
  root = l->root;
~~~
Where local is a static local variable defined at the top of the C file.

Previously I had implemented ELF_MACHINE_LOAD_ADDRESS like this:
~~~
#define ELF_MACHINE_LOAD_ADDRESS(var, symbol)           \
  asm ("        addil LT'" #symbol ", %%r19\n"          \
       "        ldw RT'" #symbol "(%%sr0,%%r1), %0\n"   \
      : "=&r" (var) : : "r1" );
~~~

As you will notice the LT'/RT' pair will generate an access through
the GOT for this variable e.g.
~~~
  ELF_MACHINE_LOAD_ADDRESS (l, local);
   18b30:       2a 60 10 00     addil L%800,r19,r1
   18b34:       48 26 00 00     ldw 0(r1),r6
~~~

This appears to have worked because in previous builds the GOT
relocations required for this access were processed *before* the
access.

How do I load the address of a static local variable without using the GOT?

I use the following for computing the location of _DYNAMIC:
~~~
  Elf32_Addr dynamic;

  asm (
"       b,l     1f,%0\n"
"       depi    0,31,2,%0\n"
"1:     addil   L'_DYNAMIC - ($PIC_pcrel$0 - 8),%0\n"
"       ldo     R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%%r1),%0\n"
   : "=r" (dynamic) : : "r1");
~~~

Can I use this sequence to find the address of a static local variable?

Is there a more optimal sequence?

Cheers,
Carlos.
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From - Thu Nov 08 21:05:10 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: Problem with early startup in dynamic linker.
Date: Wed, 11 Nov 2009 11:41:12 -0500 (EST)
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To: carlos@systemhalted.org (Carlos O'Donell)
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> John,
> 
> I need your help crafting some assembly for the early startup of the
> dynamic linker.
> 
> During early startup we need to do some work *before* the GOT is relocated.
> 
> This means that static local variable accesses are handled via a
> special wrapper e.g.
> ~~~
>   struct local *l;
> 
>   ELF_MACHINE_LOAD_ADDRESS (l, local);
> 
>  retry:
>   root = l->root;
> ~~~
> Where local is a static local variable defined at the top of the C file.
> 
> Previously I had implemented ELF_MACHINE_LOAD_ADDRESS like this:
> ~~~
> #define ELF_MACHINE_LOAD_ADDRESS(var, symbol)           \
>   asm ("        addil LT'" #symbol ", %%r19\n"          \
>        "        ldw RT'" #symbol "(%%sr0,%%r1), %0\n"   \
>       : "=&r" (var) : : "r1" );
> ~~~
> 
> As you will notice the LT'/RT' pair will generate an access through
> the GOT for this variable e.g.
> ~~~
>   ELF_MACHINE_LOAD_ADDRESS (l, local);
>    18b30:       2a 60 10 00     addil L%800,r19,r1
>    18b34:       48 26 00 00     ldw 0(r1),r6
> ~~~
> 
> This appears to have worked because in previous builds the GOT
> relocations required for this access were processed *before* the
> access.
> 
> How do I load the address of a static local variable without using the GOT?
> 
> I use the following for computing the location of _DYNAMIC:
> ~~~
>   Elf32_Addr dynamic;
> 
>   asm (
> "       b,l     1f,%0\n"
> "       depi    0,31,2,%0\n"
> "1:     addil   L'_DYNAMIC - ($PIC_pcrel$0 - 8),%0\n"
> "       ldo     R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%%r1),%0\n"
>    : "=r" (dynamic) : : "r1");
> ~~~
> 
> Can I use this sequence to find the address of a static local variable?

This will work if the local variable is in the same segment as
the code.  It may work generally because I believe there is a fixed
relationship between the code and data segments on linux (this isn't
true on hpux).  The issue is whether the data is readonly or needs
to be writeable.

> Is there a more optimal sequence?

In PA 2.0, the b,l/depi instructions can be replaced by the mfia
instruction.  This saves one instruction.  If you just need to load
a byte, etc, the ldo can be replaced by a ldb, ldh, ldw or ldd
instruction.  If the data is close, the addil isn't needed.  Otherwise,
there isn't much else that can be done to make the sequence more
optimal.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:10 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: Problem with early startup in dynamic linker.
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On Wed, Nov 11, 2009 at 11:41 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> Can I use this sequence to find the address of a static local variab=
le?
>
> This will work if the local variable is in the same segment as
> the code. =A0It may work generally because I believe there is a fixed
> relationship between the code and data segments on linux (this isn't
> true on hpux). =A0The issue is whether the data is readonly or needs
> to be writeable.

CC'ing libc-ports in case anyone knows what might be wrong.

CC'ing Lu, who might have a suggestion (and is familiar with the code).=
 Hi Lu!

There is code in dl-fptr.c which is called during relocation
processing and before rtld is fully relocated.

The code in dl-fptr.c looks like this:
~~~
static struct local
  {
    struct fdesc_table *root;
    struct fdesc *free_list;
    unsigned int npages;                /* # of pages to allocate */
    /* the next to members MUST be consecutive! */
    struct fdesc_table boot_table;
    struct fdesc boot_fdescs[1024];
  }
local =3D
  {
    .root =3D &local.boot_table,
    .npages =3D 2,
    .boot_table =3D
      {
        .len =3D sizeof (local.boot_fdescs) / sizeof (local.boot_fdescs=
[0]),
        .first_unused =3D 0
      }
  };
~~~

The ".root =3D &local.boot_table," assignment causes this relocation to
be emitted:
~~~
000219d8  00000101 R_PARISC_DIR32    000024b0   .text + 1f534
~~~

This is because the address of local + 12 is not known until .text has
been relocated.

However, this appears to mean that ALL DIR32 relocs have to be
processed before the above code can be called "safely relocated" and
before any PLABEL32 (official procedure descriptor relocations) relocs
can be processed since they use this code.

A trunk build shows a crash in the dynamic loader trying to access
l->root. The value of local.root is the unrelocated address (as
computed by the linker and placed at link time into .data).

Is the solution to sort the dynamic relocations and process all DIR32
relocs first?

The alternative is this:
~~~
 local =3D
   {
-    .root =3D &local.boot_table,
+    /* Address of .boot_table is not known until runtime.  */
+    .root =3D 0,
     .npages =3D 2,
     .boot_table =3D
       {
@@ -103,6 +105,10 @@ make_fdesc (ElfW(Addr) ip, ElfW(Addr) gp)
   struct local *l;

   ELF_MACHINE_LOAD_ADDRESS (l, local);
+  /* Initialize root once.  */
+  if (l->root =3D=3D 0)
+    l->root =3D &l->boot_table;
~~~
This removes the relocation against local.

This fixes the dynamic linker segmentation fault in early startup
while trying to relocate a PLABEL32 reloc before all of the DIR32
relocs.

Are the changes to dl-fptr.c the right solution?

Cheers,
Carlos.
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From - Thu Nov 08 21:05:10 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: Problem with early startup in dynamic linker.
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On Thu, 12 Nov 2009, Carlos O'Donell wrote:

> local =
>   {
>     .root = &local.boot_table,

Another approach might be to change this to an offset from a symbol
that you can load with the pc-relative trick.  This is what we do
for dwarf2 code and data symbols.  This gets rid of the relocation.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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New commits:
commit 933c58608e5987385409975d33ba8c65815f63a0
Author: Thomas Gleixner <tglx@linutronix.de>
Date:   Fri Nov 6 22:41:51 2009 +0000

    parisc: Replace old style lock init in smp.c
    
    SPIN_LOCK_UNLOCKED is deprecated. Init the per cpu locks at runtime
    instead.
    
    (Also kills the unused smp_lock --kyle)
    
    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 5b1d9233f6e8c0a1d164bc8f1915dea070a34016
Author: Helge Deller <deller@gmx.de>
Date:   Fri Nov 6 23:07:42 2009 +0000

    parisc: use sort() instead of home-made implementation (v2)
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Randolph Chung <tausq@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 95c26d0060afd79557cc445944e292f068bb3ed8
Author: Kyle McMartin <kyle@phobos.i.jkkm.org>
Date:   Sat Nov 14 00:09:02 2009 -0500

    Revert "parisc: use sort() instead of home-made implementation"
    
    This reverts commit b8d46862d910c3be7c28c627204da968c174aa9a which contained
    a bug as documented by Helge in his follow-up mail.
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:05:11 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: [PATCH 0/6] fix xfs by making I/O to vmap/vmalloc areas work
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Here's version three of the patch.  This one makes sure the invalidate
works correctly.  I verified it on parisc by making my system print out
the virtual addresses it was invalidating and matching up with the ones
that were initially flushed, but since invalidate is a nop on parisc, I
can't verify live that the issue is fixed.  I'd really appreciate someone
from arm and sh testing here.

Thanks,

James

---

James Bottomley (6):
  mm: add coherence API for DMA to vmalloc/vmap areas
  parisc: add mm API for DMA to vmalloc/vmap areas
  arm: add mm API for DMA to vmalloc/vmap areas
  sh: add mm API for DMA to vmalloc/vmap areas
  block: permit I/O to vmalloc/vmap kernel pages
  xfs: fix xfs to work with Virtually Indexed architectures

 arch/arm/include/asm/cacheflush.h    |   10 ++++++++++
 arch/parisc/include/asm/cacheflush.h |    8 ++++++++
 arch/sh/include/asm/cacheflush.h     |    8 ++++++++
 fs/bio.c                             |   20 ++++++++++++++++++--
 fs/xfs/linux-2.6/xfs_buf.c           |   20 ++++++++++++++++++++
 include/linux/highmem.h              |    6 ++++++
 6 files changed, 70 insertions(+), 2 deletions(-)

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From - Thu Nov 08 21:05:11 2018
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Subject: [PATCH 1/6] mm: add coherence API for DMA to vmalloc/vmap areas
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On Virtually Indexed architectures (which don't do automatic alias
resolution in their caches), we have to flush via the correct
virtual address to prepare pages for DMA.  On some architectures
(like arm) we cannot prevent the CPU from doing data movein along
the alias (and thus giving stale read data), so we not only have to
introduce a flush API to push dirty cache lines out, but also an invalidate
API to kill inconsistent cache lines that may have moved in before
DMA changed the data

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 include/linux/highmem.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 211ff44..eb99c70 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -17,6 +17,12 @@ static inline void flush_anon_page(struct vm_area_struct *vma, struct page *page
 static inline void flush_kernel_dcache_page(struct page *page)
 {
 }
+static inline void flush_kernel_dcache_addr(void *vaddr)
+{
+}
+static inline void invalidate_kernel_dcache_addr(void *vaddr)
+{
+}
 #endif
 
 #include <asm/kmap_types.h>
-- 
1.6.3.3

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From - Thu Nov 08 21:05:11 2018
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Subject: [PATCH 2/6] parisc: add mm API for DMA to vmalloc/vmap areas
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We already have an API to flush a kernel page along an alias
address, so use it.  The TLB purge prevents the CPU from doing
speculative moveins on the flushed address, so we don't need to
implement and invalidate.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/parisc/include/asm/cacheflush.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7243951..2536a00 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -90,6 +90,14 @@ static inline void flush_kernel_dcache_page(struct page *page)
 {
 	flush_kernel_dcache_page_addr(page_address(page));
 }
+static inline void flush_kernel_dcache_addr(void *addr)
+{
+	flush_kernel_dcache_page_addr(addr);
+}
+static inline void invalidate_kernel_dcache_addr(void *addr)
+{
+	/* nop .. the flush prevents move in until the page is touched */
+}
 
 #ifdef CONFIG_DEBUG_RODATA
 void mark_rodata_ro(void);
-- 
1.6.3.3


From - Thu Nov 08 21:05:11 2018
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ARM cannot prevent cache movein, so this patch implements both the
flush and invalidate pieces of the API.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/arm/include/asm/cacheflush.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 1a711ea..1104ee9 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -436,6 +436,16 @@ static inline void flush_kernel_dcache_page(struct page *page)
 	if ((cache_is_vivt() || cache_is_vipt_aliasing()) && !PageHighMem(page))
 		__cpuc_flush_dcache_page(page_address(page));
 }
+static inline void flush_kernel_dcache_addr(void *addr)
+{
+	if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+		__cpuc_flush_dcache_page(addr);
+}
+static inline void invalidate_kernel_dcache_addr(void *addr)
+{
+	if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+		__cpuc_flush_dcache_page(addr);
+}
 
 #define flush_dcache_mmap_lock(mapping) \
 	spin_lock_irq(&(mapping)->tree_lock)
-- 
1.6.3.3

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Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/sh/include/asm/cacheflush.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index 4c5462d..3cb8824 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -48,6 +48,14 @@ static inline void flush_kernel_dcache_page(struct page *page)
 {
 	flush_dcache_page(page);
 }
+static inline void flush_kernel_dcache_addr(void *addr)
+{
+	__flush_wback_region(addr, PAGE_SIZE);
+}
+static inline void invalidate_kernel_dcache_addr(void *addr)
+{
+	__flush_invalidate_region(addr, PAGE_SIZE);
+}
 
 #if defined(CONFIG_CPU_SH4) && !defined(CONFIG_CACHE_OFF)
 extern void copy_to_user_page(struct vm_area_struct *vma,
-- 
1.6.3.3

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From - Thu Nov 08 21:05:11 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH 5/6] block: permit I/O to vmalloc/vmap kernel pages
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Cc: James Bottomley <James.Bottomley@suse.de>
To: linux-arch@vger.kernel.org, linux-parisc@vger.kernel.org
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This updates bio_map_kern() to check for pages in the vmalloc address
range and call the new kernel flushing APIs if the are.  This should
allow any kernel user to pass a vmalloc/vmap area to block.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 fs/bio.c |   20 ++++++++++++++++++--
 1 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/fs/bio.c b/fs/bio.c
index 7673800..0cf7b79 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1120,6 +1120,14 @@ void bio_unmap_user(struct bio *bio)
 
 static void bio_map_kern_endio(struct bio *bio, int err)
 {
+	void *kaddr = bio->bi_private;
+
+	if (is_vmalloc_addr(kaddr)) {
+		int i;
+
+		for (i = 0; i < bio->bi_vcnt; i++)
+			invalidate_kernel_dcache_addr(kaddr + i * PAGE_SIZE);
+	}
 	bio_put(bio);
 }
 
@@ -1138,9 +1146,12 @@ static struct bio *__bio_map_kern(struct request_queue *q, void *data,
 	if (!bio)
 		return ERR_PTR(-ENOMEM);
 
+	bio->bi_private = data;
+
 	offset = offset_in_page(kaddr);
 	for (i = 0; i < nr_pages; i++) {
 		unsigned int bytes = PAGE_SIZE - offset;
+		struct page *page;
 
 		if (len <= 0)
 			break;
@@ -1148,8 +1159,13 @@ static struct bio *__bio_map_kern(struct request_queue *q, void *data,
 		if (bytes > len)
 			bytes = len;
 
-		if (bio_add_pc_page(q, bio, virt_to_page(data), bytes,
-				    offset) < bytes)
+		if (is_vmalloc_addr(data)) {
+			flush_kernel_dcache_addr(data);
+			page = vmalloc_to_page(data);
+		} else
+			page = virt_to_page(data);
+
+		if (bio_add_pc_page(q, bio, page, bytes, offset) < bytes)
 			break;
 
 		data += bytes;
-- 
1.6.3.3


From - Thu Nov 08 21:05:11 2018
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X-Mozilla-Keys:                                                                                 
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH 6/6] xfs: fix xfs to work with Virtually Indexed architectures
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Cc: James Bottomley <James.Bottomley@suse.de>
To: linux-arch@vger.kernel.org, linux-parisc@vger.kernel.org
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xfs_buf.c includes what is essentially a hand rolled version of
blk_rq_map_kern().  In order to work properly with the vmalloc buffers
that xfs uses, this hand rolled routine must also implement the flushing
API for vmap/vmalloc areas.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 fs/xfs/linux-2.6/xfs_buf.c |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 965df12..320a6e4 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1132,12 +1132,26 @@ xfs_buf_bio_end_io(
 	xfs_buf_t		*bp = (xfs_buf_t *)bio->bi_private;
 	unsigned int		blocksize = bp->b_target->bt_bsize;
 	struct bio_vec		*bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
+	void			*vaddr = NULL;
+	int			i;
 
 	xfs_buf_ioerror(bp, -error);
 
+	if (is_vmalloc_addr(bp->b_addr))
+		for (i = 0; i < bp->b_page_count; i++)
+			if (bvec->bv_page == bp->b_pages[i]) {
+				vaddr = bp->b_addr + i*PAGE_SIZE;
+				break;
+			}
+
 	do {
 		struct page	*page = bvec->bv_page;
 
+		if (is_vmalloc_addr(bp->b_addr)) {
+			invalidate_kernel_dcache_addr(vaddr);
+			vaddr -= PAGE_SIZE;
+		}
+
 		ASSERT(!PagePrivate(page));
 		if (unlikely(bp->b_error)) {
 			if (bp->b_flags & XBF_READ)
@@ -1202,6 +1216,9 @@ _xfs_buf_ioapply(
 		bio->bi_end_io = xfs_buf_bio_end_io;
 		bio->bi_private = bp;
 
+		if (is_vmalloc_addr(bp->b_addr))
+			flush_kernel_dcache_addr(bp->b_addr);
+
 		bio_add_page(bio, bp->b_pages[0], PAGE_CACHE_SIZE, 0);
 		size = 0;
 
@@ -1228,6 +1245,9 @@ next_chunk:
 		if (nbytes > size)
 			nbytes = size;
 
+		if (is_vmalloc_addr(bp->b_addr))
+			flush_kernel_dcache_addr(bp->b_addr + PAGE_SIZE*map_i);
+
 		rbytes = bio_add_page(bio, bp->b_pages[map_i], nbytes, offset);
 		if (rbytes < nbytes)
 			break;
-- 
1.6.3.3


From - Thu Nov 08 21:05:11 2018
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X-Mozilla-Keys:                                                                                 
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From: Thomas Gleixner <tglx@linutronix.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [patch 07/13] parisc: Fixup last users of irq_chip->typename
Date: Tue, 17 Nov 2009 22:50:59 -0000
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Approved: news@gmane.org
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Cc: Ingo Molnar <mingo@elte.hu>, Kyle McMartin <kyle@mcmartin.ca>,
	linux-parisc@vger.kernel.org
To: LKML <linux-kernel@vger.kernel.org>
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The typename member of struct irq_chip was kept for migration purposes
and is obsolete since more than 2 years. Fix up the leftovers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/irq.c |    4 ++--
 drivers/parisc/dino.c    |    2 +-
 drivers/parisc/eisa.c    |    2 +-
 drivers/parisc/gsc.c     |    2 +-
 drivers/parisc/iosapic.c |    2 +-
 drivers/parisc/superio.c |    2 +-
 6 files changed, 7 insertions(+), 7 deletions(-)

Index: linux-2.6/arch/parisc/kernel/irq.c
===================================================================
--- linux-2.6.orig/arch/parisc/kernel/irq.c
+++ linux-2.6/arch/parisc/kernel/irq.c
@@ -145,7 +145,7 @@ static int cpu_set_affinity_irq(unsigned
 #endif
 
 static struct irq_chip cpu_interrupt_type = {
-	.typename	= "CPU",
+	.name		= "CPU",
 	.startup	= cpu_startup_irq,
 	.shutdown	= cpu_disable_irq,
 	.enable		= cpu_enable_irq,
@@ -192,7 +192,7 @@ int show_interrupts(struct seq_file *p, 
 		seq_printf(p, "%10u ", kstat_irqs(i));
 #endif
 
-		seq_printf(p, " %14s", irq_desc[i].chip->typename);
+		seq_printf(p, " %14s", irq_desc[i].chip->name);
 #ifndef PARISC_IRQ_CR16_COUNTS
 		seq_printf(p, "  %s", action->name);
 
Index: linux-2.6/drivers/parisc/dino.c
===================================================================
--- linux-2.6.orig/drivers/parisc/dino.c
+++ linux-2.6/drivers/parisc/dino.c
@@ -354,7 +354,7 @@ static unsigned int dino_startup_irq(uns
 }
 
 static struct irq_chip dino_interrupt_type = {
-	.typename	= "GSC-PCI",
+	.name		= "GSC-PCI",
 	.startup	= dino_startup_irq,
 	.shutdown	= dino_disable_irq,
 	.enable		= dino_enable_irq, 
Index: linux-2.6/drivers/parisc/eisa.c
===================================================================
--- linux-2.6.orig/drivers/parisc/eisa.c
+++ linux-2.6/drivers/parisc/eisa.c
@@ -189,7 +189,7 @@ static unsigned int eisa_startup_irq(uns
 }
 
 static struct irq_chip eisa_interrupt_type = {
-	.typename =	"EISA",
+	.name	 =	"EISA",
 	.startup =	eisa_startup_irq,
 	.shutdown =	eisa_disable_irq,
 	.enable =	eisa_enable_irq,
Index: linux-2.6/drivers/parisc/gsc.c
===================================================================
--- linux-2.6.orig/drivers/parisc/gsc.c
+++ linux-2.6/drivers/parisc/gsc.c
@@ -149,7 +149,7 @@ static unsigned int gsc_asic_startup_irq
 }
 
 static struct irq_chip gsc_asic_interrupt_type = {
-	.typename =	"GSC-ASIC",
+	.name	 =	"GSC-ASIC",
 	.startup =	gsc_asic_startup_irq,
 	.shutdown =	gsc_asic_disable_irq,
 	.enable =	gsc_asic_enable_irq,
Index: linux-2.6/drivers/parisc/iosapic.c
===================================================================
--- linux-2.6.orig/drivers/parisc/iosapic.c
+++ linux-2.6/drivers/parisc/iosapic.c
@@ -730,7 +730,7 @@ static int iosapic_set_affinity_irq(unsi
 #endif
 
 static struct irq_chip iosapic_interrupt_type = {
-	.typename =	"IO-SAPIC-level",
+	.name	 =	"IO-SAPIC-level",
 	.startup =	iosapic_startup_irq,
 	.shutdown =	iosapic_disable_irq,
 	.enable =	iosapic_enable_irq,
Index: linux-2.6/drivers/parisc/superio.c
===================================================================
--- linux-2.6.orig/drivers/parisc/superio.c
+++ linux-2.6/drivers/parisc/superio.c
@@ -326,7 +326,7 @@ static unsigned int superio_startup_irq(
 }
 
 static struct irq_chip superio_interrupt_type = {
-	.typename =	SUPERIO,
+	.name	 =	SUPERIO,
 	.startup =	superio_startup_irq,
 	.shutdown =	superio_disable_irq,
 	.enable =	superio_enable_irq,


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From - Thu Nov 08 21:05:11 2018
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X-Mozilla-Keys:                                                                                 
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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: Re: [PATCH 5/6] block: permit I/O to vmalloc/vmap kernel pages
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On Tue, 17 Nov 2009 11:03:51 -0600
James Bottomley <James.Bottomley@suse.de> wrote:

> This updates bio_map_kern() to check for pages in the vmalloc address
> range and call the new kernel flushing APIs if the are.  This should
> allow any kernel user to pass a vmalloc/vmap area to block.
>
> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> ---
>  fs/bio.c |   20 ++++++++++++++++++--
>  1 files changed, 18 insertions(+), 2 deletions(-)

Do we need this?

Buffers that xfs_buf.c passes to block doesn't go to bio_map_kern()?

From - Thu Nov 08 21:05:11 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 5/6] block: permit I/O to vmalloc/vmap kernel pages
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On Wed, 2009-11-18 at 19:10 +0900, FUJITA Tomonori wrote:
> On Tue, 17 Nov 2009 11:03:51 -0600
> James Bottomley <James.Bottomley@suse.de> wrote:
> 
> > This updates bio_map_kern() to check for pages in the vmalloc address
> > range and call the new kernel flushing APIs if the are.  This should
> > allow any kernel user to pass a vmalloc/vmap area to block.
> >
> > Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> > ---
> >  fs/bio.c |   20 ++++++++++++++++++--
> >  1 files changed, 18 insertions(+), 2 deletions(-)
> 
> Do we need this?
> 
> Buffers that xfs_buf.c passes to block doesn't go to bio_map_kern()?

For completeness, yes ... because xfs *should* be passing its buffers to
bio_map_kern() ... it just happens to roll its own.

James



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From - Thu Nov 08 21:05:11 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 5/6] block: permit I/O to vmalloc/vmap kernel pages
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On Wed, 18 Nov 2009 08:50:40 -0500
James Bottomley <James.Bottomley@suse.de> wrote:

> On Wed, 2009-11-18 at 19:10 +0900, FUJITA Tomonori wrote:
> > On Tue, 17 Nov 2009 11:03:51 -0600
> > James Bottomley <James.Bottomley@suse.de> wrote:
> > 
> > > This updates bio_map_kern() to check for pages in the vmalloc address
> > > range and call the new kernel flushing APIs if the are.  This should
> > > allow any kernel user to pass a vmalloc/vmap area to block.
> > >
> > > Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> > > ---
> > >  fs/bio.c |   20 ++++++++++++++++++--
> > >  1 files changed, 18 insertions(+), 2 deletions(-)
> > 
> > Do we need this?
> > 
> > Buffers that xfs_buf.c passes to block doesn't go to bio_map_kern()?
> 
> For completeness, yes ... because xfs *should* be passing its buffers to
> bio_map_kern() ... it just happens to roll its own.

Ok, you mean that we will convert XFS to use bio_map_kern().

But adding another trick to bio_map_kern() to handle a vmalloc/vmap
area is a good move? Only XFS do such, right?
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From - Thu Nov 08 21:05:11 2018
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Subject: Re: [PATCH 5/6] block: permit I/O to vmalloc/vmap kernel pages
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On Wed, 2009-11-18 at 23:15 +0900, FUJITA Tomonori wrote:
> On Wed, 18 Nov 2009 08:50:40 -0500
> James Bottomley <James.Bottomley@suse.de> wrote:
> 
> > On Wed, 2009-11-18 at 19:10 +0900, FUJITA Tomonori wrote:
> > > On Tue, 17 Nov 2009 11:03:51 -0600
> > > James Bottomley <James.Bottomley@suse.de> wrote:
> > > 
> > > > This updates bio_map_kern() to check for pages in the vmalloc address
> > > > range and call the new kernel flushing APIs if the are.  This should
> > > > allow any kernel user to pass a vmalloc/vmap area to block.
> > > >
> > > > Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> > > > ---
> > > >  fs/bio.c |   20 ++++++++++++++++++--
> > > >  1 files changed, 18 insertions(+), 2 deletions(-)
> > > 
> > > Do we need this?
> > > 
> > > Buffers that xfs_buf.c passes to block doesn't go to bio_map_kern()?
> > 
> > For completeness, yes ... because xfs *should* be passing its buffers to
> > bio_map_kern() ... it just happens to roll its own.
> 
> Ok, you mean that we will convert XFS to use bio_map_kern().
> 
> But adding another trick to bio_map_kern() to handle a vmalloc/vmap
> area is a good move? Only XFS do such, right?

Well, it's more a question of how we want the Linux APIs to look.
Should passing vmalloc/vmap areas into the I/O routines be wrong?  Right
at the moment it doesn't work but xfs is the only consumer.

There are definite reasons to say yes: greater flexibility for handling
large buffers which logging filesystems seem to need.

My position is either xfs is right and we should handle them correctly
(and hence all the APIs should handle them correctly including
bio_map_kern) or xfs is wrong and we should try and make it work with
current APIs (which would necessitate a large contiguous physical
allocation ... with all the associated problems).  I chose the former
with this patch.

James


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From - Thu Nov 08 21:05:12 2018
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On Tue, Nov 17, 2009 at 11:03:47AM -0600, James Bottomley wrote:

> On Virtually Indexed architectures (which don't do automatic alias
> resolution in their caches), we have to flush via the correct
> virtual address to prepare pages for DMA.  On some architectures
> (like arm) we cannot prevent the CPU from doing data movein along
> the alias (and thus giving stale read data), so we not only have to
> introduce a flush API to push dirty cache lines out, but also an invalidate
> API to kill inconsistent cache lines that may have moved in before
> DMA changed the data

The API looks right for MIPS and trivial to implement based on existing
code, so feel free to throw in my Ack on the generic parts.

The new APIs deserve documentation in Documentation/cachetlb.txt.

  Ralf
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: Re: [PATCH 1/6] mm: add coherence API for DMA to vmalloc/vmap areas
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On Wed, 2009-11-18 at 15:38 +0100, Ralf Baechle wrote:
> On Tue, Nov 17, 2009 at 11:03:47AM -0600, James Bottomley wrote:
> 
> > On Virtually Indexed architectures (which don't do automatic alias
> > resolution in their caches), we have to flush via the correct
> > virtual address to prepare pages for DMA.  On some architectures
> > (like arm) we cannot prevent the CPU from doing data movein along
> > the alias (and thus giving stale read data), so we not only have to
> > introduce a flush API to push dirty cache lines out, but also an invalidate
> > API to kill inconsistent cache lines that may have moved in before
> > DMA changed the data
> 
> The API looks right for MIPS and trivial to implement based on existing
> code, so feel free to throw in my Ack on the generic parts.
> 
> The new APIs deserve documentation in Documentation/cachetlb.txt.

True (mutter, hate doing docs, mutter).

How about this?

James

---

diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt
index da42ab4..7d1055c 100644
--- a/Documentation/cachetlb.txt
+++ b/Documentation/cachetlb.txt
@@ -377,3 +377,27 @@ maps this page at its virtual address.
 	All the functionality of flush_icache_page can be implemented in
 	flush_dcache_page and update_mmu_cache. In 2.7 the hope is to
 	remove this interface completely.
+
+For machines where aliasing can be a problem, there exist two
+additional APIs to handle I/O to vmap/vmalloc areas within the
+kernel. These are areas that have two kernel mappings, one the regular
+page offset map through which the page has likely been previously
+accessed and the other, the new contiguous map in the kernel virtual
+map area.  This dual mapping sets up aliasing within the kernel and,
+in particular since all kernel flushing goes through the offset map,
+must be handled separately for I/O.  to declare your architecture as
+needing to use these functions, you must define
+ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE in asm/cacheflush.h and add two API
+helpers (usually as static inlines in cacheflush.h).  The two new APIs
+are:
+
+  void flush_kernel_dcache_addr(void *addr)
+       Flush a single page through the vmap alias for addr.  This is
+       usually executed prior to performing I/O on the page to make
+       sure the underlying physical page is up to date.
+
+  void invalidate_kernel_dcache_addr(void *addr)
+       Invalidate the page after I/O has completed.  This is necessary
+       on machines whose cache mechanisms might trigger cache movein
+       during I/O.  If you can ensure architecturally that this movein
+       never occurs, this function can be empty on your architecture.



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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Changes to fcntl.h and F_* numbers?
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To: Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
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Kyle, Helge,

I've seen some recent churn regarding the kernel fcntl.h and F_* numbers.

If our numbers change please keep me in the loop so I can update the C
library side.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:12 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [patch 07/13] parisc: Fixup last users of irq_chip->typename
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On Tue, Nov 17, 2009 at 10:50:59PM -0000, Thomas Gleixner wrote:
> The typename member of struct irq_chip was kept for migration purposes
> and is obsolete since more than 2 years. Fix up the leftovers.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: linux-parisc@vger.kernel.org

Thanks, applied.
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From - Thu Nov 08 21:05:12 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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On Wed, Nov 18, 2009 at 03:22:15PM -0500, Carlos O'Donell wrote:
> Kyle, Helge,
> 
> I've seen some recent churn regarding the kernel fcntl.h and F_* numbers.
> 
> If our numbers change please keep me in the loop so I can update the C
> library side.
> 

?

Unless you added things based on what's in git to libc, there's been no
changes recently. It would be fairly unwise to pick things out before
they've been in a released kernel, since they're subject to change up
until that point...

After that, the assignments are absolutely immutable...

--Kyle
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On Wed, Nov 18, 2009 at 10:22 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Wed, Nov 18, 2009 at 03:22:15PM -0500, Carlos O'Donell wrote:
>> Kyle, Helge,
>>
>> I've seen some recent churn regarding the kernel fcntl.h and F_* numbers.
>>
>> If our numbers change please keep me in the loop so I can update the C
>> library side.
>>
>
> ?

http://marc.info/?l=linux-api&m=125688056905828&w=2

> Unless you added things based on what's in git to libc, there's been no
> changes recently. It would be fairly unwise to pick things out before
> they've been in a released kernel, since they're subject to change up
> until that point...
>
> After that, the assignments are absolutely immutable...

Thanks.

Cheers,
Carlos.
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: Changes to fcntl.h and F_* numbers?
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On Thu, 2009-11-19 at 12:00 -0500, Carlos O'Donell wrote:
> On Wed, Nov 18, 2009 at 10:22 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> > On Wed, Nov 18, 2009 at 03:22:15PM -0500, Carlos O'Donell wrote:
> >> Kyle, Helge,
> >>
> >> I've seen some recent churn regarding the kernel fcntl.h and F_* numbers.
> >>
> >> If our numbers change please keep me in the loop so I can update the C
> >> library side.
> >>
> >
> > ?
> 
> http://marc.info/?l=linux-api&m=125688056905828&w=2

But this isn't parisc specific ... it's a bug CodeSourcery reported in
the ABI assignment in asm-generic.

We already look to have this sorted out locally in our fcntl.h ... so
we're not going to be changing anything, are we?  Or are you saying
(because we could get into trouble in future) that we should adopt the
asm generic ones?

James


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Subject: Re: Changes to fcntl.h and F_* numbers?
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On Thu, Nov 19, 2009 at 12:23 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Thu, 2009-11-19 at 12:00 -0500, Carlos O'Donell wrote:
>> On Wed, Nov 18, 2009 at 10:22 PM, Kyle McMartin <kyle@mcmartin.ca> w=
rote:
>> > On Wed, Nov 18, 2009 at 03:22:15PM -0500, Carlos O'Donell wrote:
>> >> Kyle, Helge,
>> >>
>> >> I've seen some recent churn regarding the kernel fcntl.h and F_* =
numbers.
>> >>
>> >> If our numbers change please keep me in the loop so I can update =
the C
>> >> library side.
>> >>
>> >
>> > ?
>>
>> http://marc.info/?l=3Dlinux-api&m=3D125688056905828&w=3D2
>
> But this isn't parisc specific ... it's a bug CodeSourcery reported i=
n
> the ABI assignment in asm-generic.

Yes, that's correct, the original issue doesn't apply to parisc.

I pull from kyle's tree here:
git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git

In kyle's tree I see:
"arch/parisc/include/asm/fcntl.h"
#define F_GETOWN_EX     15
#define F_SETOWN_EX     16

The original message that Joseph Myers at CodeSourcery posted here:
http://marc.info/?l=3Dlinux-api&m=3D125466028819859&w=3D2

Does not apply to us.

> We already look to have this sorted out locally in our fcntl.h ... so
> we're not going to be changing anything, are we? =A0Or are you saying
> (because we could get into trouble in future) that we should adopt th=
e
> asm generic ones?

I don't think we have to change anything.

It would probably be less maintenance for Kyle in the future if we
adopted the generic ones for future flags.

The message I referenced here:
http://marc.info/?l=3Dlinux-api&m=3D125688056905828&w=3D2

by Stephen Rothwell <sfr@canb.auug.org.au>, has a parisc specific piece=
 here:

~~~
diff --git a/arch/parisc/include/asm/fcntl.h b/arch/parisc/include/asm/=
fcntl.h
index 5f39d55..1e1c824 100644
--- a/arch/parisc/include/asm/fcntl.h
+++ b/arch/parisc/include/asm/fcntl.h
@@ -28,8 +28,6 @@
 #define F_SETOWN	12	/*  for sockets. */
 #define F_SETSIG	13	/*  for sockets. */
 #define F_GETSIG	14	/*  for sockets. */
-#define F_GETOWN_EX	15
-#define F_SETOWN_EX	16

 /* for posix fcntl() and lockf() */
 #define F_RDLCK		01
~~~

I don't know why he wants to remove bits from our fcntl.h.

The intent of my original email was to say "Hi! I'm the libc
maintainer, I'll fix things if you notice a problem."

I'm pretty sure I'm on linux-api, but I missed this issue.

Cheres,
Carlos.
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From: Boaz Harrosh <bharrosh-C4P08NqkoRlBDgjK7y7TUQ@public.gmane.org>
Newsgroups: gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCHSET 0-5] remove unneeded nfsd #includes
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Some arch files had unneeded #includes directives from linux/nfsd/*.
Some vfs files had unneeded #includes directives from linux/nfsd/*.

In an effort to move some of the now public nfsd headers to the source
directory, submitted a cleanup.

I have cross compiled sparc64 and s390, parsic needs testing. Please ARCH
people sends ACKs, or take these patches through your trees.

patches:
[PATCH 1/5] parsic: remove unused nfsd #includes
	Some kind soul, please compile with this patch? compile
	is all that's needed.

[PATCH 2/5] sparc: remove unused nfsd #includes
[PATCH 3/5] s390: remove unused nfsd #includes
	These two were cross compiled. Should we submit them through
	nfsd tree or the ARCH trees?

[PATCH 4/5] vfs: nfsctl.c unused nfsd #includes
[PATCH 5/5] lockd: Remove unused nfsd headers #includes
	Can these patches go through the nfsd tree?
	Who's ACKs should we collect? Andrew?

Bruce Hi
With this set applied, the only nfsd files used publicly are:
	const.h	export.h nfsfh.h stats.h syscall.h

These files can be moved to source folder:
	cache.h  debug.h  nfsd.h  state.h xdr3.h  xdr4.h  xdr.h

Why is debug.h exported from Kernel? (include/linux/nfsd/Kbuild)

So just to see how this move might look like see last patch:
[RFC] nfsd: Move private headers to source directory
	This patch was compiled, as well, on x86(32/64), sparc64, s390

Thanks
Boaz
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Some unused includes removed.

This patch is in an effort to cleanup nfsd headers and move
private definitions to source directory.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
---
 arch/parisc/kernel/sys_parisc32.c |    6 ------
 1 files changed, 0 insertions(+), 6 deletions(-)

diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 561388b..4a8ca63 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -26,13 +26,7 @@
 #include <linux/shm.h>
 #include <linux/slab.h>
 #include <linux/uio.h>
-#include <linux/nfs_fs.h>
 #include <linux/ncp_fs.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/nfsd/nfsd.h>
-#include <linux/nfsd/cache.h>
-#include <linux/nfsd/xdr.h>
-#include <linux/nfsd/syscall.h>
 #include <linux/poll.h>
 #include <linux/personality.h>
 #include <linux/stat.h>
-- 
1.6.5.2



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Some unused includes removed.

In an effort to cleanup nfsd headers and move private
definitions to source directory.

Signed-off-by: Boaz Harrosh <bharrosh-C4P08NqkoRlBDgjK7y7TUQ@public.gmane.org>
---
 arch/sparc/kernel/sys_sparc32.c |    5 -----
 1 files changed, 0 insertions(+), 5 deletions(-)

diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index 04e28b2..0a68fdf 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -26,11 +26,6 @@
 #include <linux/nfs_fs.h>
 #include <linux/quota.h>
 #include <linux/module.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/nfsd/nfsd.h>
-#include <linux/nfsd/cache.h>
-#include <linux/nfsd/xdr.h>
-#include <linux/nfsd/syscall.h>
 #include <linux/poll.h>
 #include <linux/personality.h>
 #include <linux/stat.h>
-- 
1.6.5.2


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Subject: [PATCH 5/5] vfs: nfsctl.c unused nfsd #includes
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Only linux/nfsd/syscall.h is actually used. Remove the
other nfsd #includes, so they can be moved to source
directory.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
---
 fs/nfsctl.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/fs/nfsctl.c b/fs/nfsctl.c
index 8f9a205..d3854d9 100644
--- a/fs/nfsctl.c
+++ b/fs/nfsctl.c
@@ -7,8 +7,6 @@
 #include <linux/types.h>
 #include <linux/file.h>
 #include <linux/fs.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/nfsd/nfsd.h>
 #include <linux/nfsd/syscall.h>
 #include <linux/cred.h>
 #include <linux/sched.h>
-- 
1.6.5.2



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Lots of include/linux/nfsd/* headers are only used by
nfsd module. Move them to the source directory

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
---
 fs/nfsd/auth.c                     |    2 +-
 {include/linux => fs}/nfsd/cache.h |    0
 fs/nfsd/export.c                   |    3 ++-
 fs/nfsd/lockd.c                    |    2 +-
 fs/nfsd/nfs2acl.c                  |    7 ++++---
 fs/nfsd/nfs3acl.c                  |    7 ++++---
 fs/nfsd/nfs3proc.c                 |    4 ++--
 fs/nfsd/nfs3xdr.c                  |    2 +-
 fs/nfsd/nfs4callback.c             |    4 ++--
 fs/nfsd/nfs4proc.c                 |    4 ++--
 fs/nfsd/nfs4recover.c              |    5 +++--
 fs/nfsd/nfs4state.c                |    2 +-
 fs/nfsd/nfs4xdr.c                  |    3 ++-
 fs/nfsd/nfscache.c                 |    4 ++--
 fs/nfsd/nfsctl.c                   |    5 +++--
 {include/linux => fs}/nfsd/nfsd.h  |    0
 fs/nfsd/nfsfh.c                    |    2 +-
 fs/nfsd/nfsproc.c                  |    4 ++--
 fs/nfsd/nfssvc.c                   |    4 ++--
 fs/nfsd/nfsxdr.c                   |    2 +-
 {include/linux => fs}/nfsd/state.h |    0
 fs/nfsd/stats.c                    |    4 ++--
 fs/nfsd/vfs.c                      |   18 ++++++++++--------
 {include/linux => fs}/nfsd/xdr.h   |    2 +-
 {include/linux => fs}/nfsd/xdr3.h  |    2 +-
 {include/linux => fs}/nfsd/xdr4.h  |    4 ++--
 26 files changed, 52 insertions(+), 44 deletions(-)
 rename {include/linux => fs}/nfsd/cache.h (100%)
 rename {include/linux => fs}/nfsd/nfsd.h (100%)
 rename {include/linux => fs}/nfsd/state.h (100%)
 rename {include/linux => fs}/nfsd/xdr.h (99%)
 rename {include/linux => fs}/nfsd/xdr3.h (99%)
 rename {include/linux => fs}/nfsd/xdr4.h (99%)

diff --git a/fs/nfsd/auth.c b/fs/nfsd/auth.c
index ad354d2..71209d4 100644
--- a/fs/nfsd/auth.c
+++ b/fs/nfsd/auth.c
@@ -5,7 +5,7 @@
  */
 
 #include <linux/sched.h>
-#include <linux/nfsd/nfsd.h>
+#include "nfsd.h"
 #include "auth.h"
 
 int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp)
diff --git a/include/linux/nfsd/cache.h b/fs/nfsd/cache.h
similarity index 100%
rename from include/linux/nfsd/cache.h
rename to fs/nfsd/cache.h
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 68e63f4..cb3dae2 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -18,10 +18,11 @@
 #include <linux/module.h>
 #include <linux/exportfs.h>
 
-#include <linux/nfsd/nfsd.h>
 #include <linux/nfsd/syscall.h>
 #include <net/ipv6.h>
 
+#include "nfsd.h"
+
 #define NFSDDBG_FACILITY	NFSDDBG_EXPORT
 
 typedef struct auth_domain	svc_client;
diff --git a/fs/nfsd/lockd.c b/fs/nfsd/lockd.c
index 801ef71..6f12777 100644
--- a/fs/nfsd/lockd.c
+++ b/fs/nfsd/lockd.c
@@ -9,8 +9,8 @@
  */
 
 #include <linux/file.h>
-#include <linux/nfsd/nfsd.h>
 #include <linux/lockd/bind.h>
+#include "nfsd.h"
 #include "vfs.h"
 
 #define NFSDDBG_FACILITY		NFSDDBG_LOCKD
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
index a54628d..874e2a9 100644
--- a/fs/nfsd/nfs2acl.c
+++ b/fs/nfsd/nfs2acl.c
@@ -6,10 +6,11 @@
  * Copyright (C) 2002-2003 Andreas Gruenbacher <agruen@suse.de>
  */
 
-#include <linux/nfsd/nfsd.h>
-#include <linux/nfsd/cache.h>
-#include <linux/nfsd/xdr3.h>
+#include "nfsd.h"
+/* FIXME: nfsacl.h is a broken header */
 #include <linux/nfsacl.h>
+#include "cache.h"
+#include "xdr3.h"
 #include "vfs.h"
 
 #define NFSDDBG_FACILITY		NFSDDBG_PROC
diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c
index 2f5c61b..c6011dd 100644
--- a/fs/nfsd/nfs3acl.c
+++ b/fs/nfsd/nfs3acl.c
@@ -6,10 +6,11 @@
  * Copyright (C) 2002-2003 Andreas Gruenbacher <agruen@suse.de>
  */
 
-#include <linux/nfsd/nfsd.h>
-#include <linux/nfsd/cache.h>
-#include <linux/nfsd/xdr3.h>
+#include "nfsd.h"
+/* FIXME: nfsacl.h is a broken header */
 #include <linux/nfsacl.h>
+#include "cache.h"
+#include "xdr3.h"
 #include "vfs.h"
 
 #define RETURN_STATUS(st)	{ resp->status = (st); return (st); }
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index b694b43..90b19ca 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -10,8 +10,8 @@
 #include <linux/ext2_fs.h>
 #include <linux/magic.h>
 
-#include <linux/nfsd/cache.h>
-#include <linux/nfsd/xdr3.h>
+#include "cache.h"
+#include "xdr3.h"
 #include "vfs.h"
 
 #define NFSDDBG_FACILITY		NFSDDBG_PROC
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index 623e13a..c523bb8 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -9,7 +9,7 @@
  */
 
 #include <linux/namei.h>
-#include <linux/nfsd/xdr3.h>
+#include "xdr3.h"
 #include "auth.h"
 
 #define NFSDDBG_FACILITY		NFSDDBG_XDR
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 4fe3960..f7a3158 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -34,8 +34,8 @@
  */
 
 #include <linux/sunrpc/clnt.h>
-#include <linux/nfsd/nfsd.h>
-#include <linux/nfsd/state.h>
+#include "nfsd.h"
+#include "state.h"
 
 #define NFSDDBG_FACILITY                NFSDDBG_PROC
 
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index d0e04cb..f8a37c4 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -36,8 +36,8 @@
  */
 #include <linux/file.h>
 
-#include <linux/nfsd/cache.h>
-#include <linux/nfsd/xdr4.h>
+#include "cache.h"
+#include "xdr4.h"
 #include "vfs.h"
 
 #define NFSDDBG_FACILITY		NFSDDBG_PROC
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 48742f2..6744e7f 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -33,12 +33,13 @@
 *
 */
 
-#include <linux/nfsd/nfsd.h>
-#include <linux/nfsd/state.h>
 #include <linux/file.h>
 #include <linux/namei.h>
 #include <linux/crypto.h>
 #include <linux/sched.h>
+
+#include "nfsd.h"
+#include "state.h"
 #include "vfs.h"
 
 #define NFSDDBG_FACILITY                NFSDDBG_PROC
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 1fe6e29..2923e6c 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -36,11 +36,11 @@
 
 #include <linux/file.h>
 #include <linux/smp_lock.h>
-#include <linux/nfsd/xdr4.h>
 #include <linux/namei.h>
 #include <linux/swap.h>
 #include <linux/sunrpc/svcauth_gss.h>
 #include <linux/sunrpc/clnt.h>
+#include "xdr4.h"
 #include "vfs.h"
 
 #define NFSDDBG_FACILITY                NFSDDBG_PROC
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 2fa9682..cab9780 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -43,10 +43,11 @@
 #include <linux/namei.h>
 #include <linux/statfs.h>
 #include <linux/utsname.h>
-#include <linux/nfsd/xdr4.h>
 #include <linux/nfsd_idmap.h>
 #include <linux/nfs4_acl.h>
 #include <linux/sunrpc/svcauth_gss.h>
+
+#include "xdr4.h"
 #include "vfs.h"
 
 #define NFSDDBG_FACILITY		NFSDDBG_XDR
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index 96694b8..18aa972 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -10,8 +10,8 @@
  * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
  */
 
-#include <linux/nfsd/nfsd.h>
-#include <linux/nfsd/cache.h>
+#include "nfsd.h"
+#include "cache.h"
 
 /* Size of reply cache. Common values are:
  * 4.3BSD:	128
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index e4f49fd..0415680 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -11,12 +11,13 @@
 
 #include <linux/nfsd_idmap.h>
 #include <linux/sunrpc/svcsock.h>
-#include <linux/nfsd/nfsd.h>
-#include <linux/nfsd/cache.h>
 #include <linux/nfsd/syscall.h>
 #include <linux/lockd/lockd.h>
 #include <linux/sunrpc/clnt.h>
 
+#include "nfsd.h"
+#include "cache.h"
+
 /*
  *	We have a single directory with 9 nodes in it.
  */
diff --git a/include/linux/nfsd/nfsd.h b/fs/nfsd/nfsd.h
similarity index 100%
rename from include/linux/nfsd/nfsd.h
rename to fs/nfsd/nfsd.h
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 4ef4601..2bf9efb 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -12,7 +12,7 @@
 #include <linux/exportfs.h>
 
 #include <linux/sunrpc/svcauth_gss.h>
-#include <linux/nfsd/nfsd.h>
+#include "nfsd.h"
 #include "vfs.h"
 #include "auth.h"
 
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index b6bd9e0..21a5f79 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -9,8 +9,8 @@
 
 #include <linux/namei.h>
 
-#include <linux/nfsd/cache.h>
-#include <linux/nfsd/xdr.h>
+#include "cache.h"
+#include "xdr.h"
 #include "vfs.h"
 
 typedef struct svc_rqst	svc_rqst;
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index b2d7ffa..b520ce1 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -15,11 +15,11 @@
 
 #include <linux/sunrpc/stats.h>
 #include <linux/sunrpc/svcsock.h>
-#include <linux/nfsd/nfsd.h>
-#include <linux/nfsd/cache.h>
 #include <linux/lockd/bind.h>
 #include <linux/nfsacl.h>
 #include <linux/seq_file.h>
+#include "nfsd.h"
+#include "cache.h"
 #include "vfs.h"
 
 #define NFSDDBG_FACILITY	NFSDDBG_SVC
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index 5e0603d..3bec831 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -6,7 +6,7 @@
  * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
  */
 
-#include <linux/nfsd/xdr.h>
+#include "xdr.h"
 #include "auth.h"
 
 #define NFSDDBG_FACILITY		NFSDDBG_XDR
diff --git a/include/linux/nfsd/state.h b/fs/nfsd/state.h
similarity index 100%
rename from include/linux/nfsd/state.h
rename to fs/nfsd/state.h
diff --git a/fs/nfsd/stats.c b/fs/nfsd/stats.c
index e3e411e..3fc69df 100644
--- a/fs/nfsd/stats.c
+++ b/fs/nfsd/stats.c
@@ -25,11 +25,11 @@
 
 #include <linux/seq_file.h>
 #include <linux/module.h>
-
 #include <linux/sunrpc/stats.h>
-#include <linux/nfsd/nfsd.h>
 #include <linux/nfsd/stats.h>
 
+#include "nfsd.h"
+
 struct nfsd_stats	nfsdstats;
 struct svc_stat		nfsd_svcstats = {
 	.program	= &nfsd_program,
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 81ce108..04bdba1 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -22,23 +22,25 @@
 #include <linux/fcntl.h>
 #include <linux/namei.h>
 #include <linux/delay.h>
-#include <linux/nfsd/nfsd.h>
-#ifdef CONFIG_NFSD_V3
-#include <linux/nfsd/xdr3.h>
-#endif /* CONFIG_NFSD_V3 */
 #include <linux/quotaops.h>
 #include <linux/fsnotify.h>
 #include <linux/posix_acl_xattr.h>
 #include <linux/xattr.h>
+#include <linux/jhash.h>
+#include <linux/ima.h>
+#include <asm/uaccess.h>
+
+#ifdef CONFIG_NFSD_V3
+#include "xdr3.h"
+#endif /* CONFIG_NFSD_V3 */
+
 #ifdef CONFIG_NFSD_V4
 #include <linux/nfs4_acl.h>
 #include <linux/nfsd_idmap.h>
 #endif /* CONFIG_NFSD_V4 */
-#include <linux/jhash.h>
-#include <linux/ima.h>
-#include "vfs.h"
 
-#include <asm/uaccess.h>
+#include "nfsd.h"
+#include "vfs.h"
 
 #define NFSDDBG_FACILITY		NFSDDBG_FILEOP
 
diff --git a/include/linux/nfsd/xdr.h b/fs/nfsd/xdr.h
similarity index 99%
rename from include/linux/nfsd/xdr.h
rename to fs/nfsd/xdr.h
index 58f824d..235ee5c 100644
--- a/include/linux/nfsd/xdr.h
+++ b/fs/nfsd/xdr.h
@@ -8,7 +8,7 @@
 #define LINUX_NFSD_H
 
 #include <linux/vfs.h>
-#include <linux/nfsd/nfsd.h>
+#include "nfsd.h"
 
 struct nfsd_fhandle {
 	struct svc_fh		fh;
diff --git a/include/linux/nfsd/xdr3.h b/fs/nfsd/xdr3.h
similarity index 99%
rename from include/linux/nfsd/xdr3.h
rename to fs/nfsd/xdr3.h
index 421eddd..b330756 100644
--- a/include/linux/nfsd/xdr3.h
+++ b/fs/nfsd/xdr3.h
@@ -9,7 +9,7 @@
 #ifndef _LINUX_NFSD_XDR3_H
 #define _LINUX_NFSD_XDR3_H
 
-#include <linux/nfsd/xdr.h>
+#include "xdr.h"
 
 struct nfsd3_sattrargs {
 	struct svc_fh		fh;
diff --git a/include/linux/nfsd/xdr4.h b/fs/nfsd/xdr4.h
similarity index 99%
rename from include/linux/nfsd/xdr4.h
rename to fs/nfsd/xdr4.h
index 1bf2662..83202a1 100644
--- a/include/linux/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -39,8 +39,8 @@
 #ifndef _LINUX_NFSD_XDR4_H
 #define _LINUX_NFSD_XDR4_H
 
-#include <linux/nfsd/state.h>
-#include <linux/nfsd/nfsd.h>
+#include "state.h"
+#include "nfsd.h"
 
 #define NFSD4_MAX_TAGLEN	128
 #define XDR_LEN(n)                     (((n) + 3) & ~3)
-- 
1.6.5.2



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Subject: [PATCH 3/5] s390: remove unused nfsd #includes
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Some unused includes removed.

This patch is in an effort to cleanup nfsd headers and move
private definitions to source directory.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
---
 arch/s390/kernel/compat_linux.c |    6 ------
 arch/s390/kernel/compat_linux.h |    4 ----
 2 files changed, 0 insertions(+), 10 deletions(-)

diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 0debcec..29a2f34 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -31,14 +31,8 @@
 #include <linux/shm.h>
 #include <linux/slab.h>
 #include <linux/uio.h>
-#include <linux/nfs_fs.h>
 #include <linux/quota.h>
 #include <linux/module.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/nfsd/nfsd.h>
-#include <linux/nfsd/cache.h>
-#include <linux/nfsd/xdr.h>
-#include <linux/nfsd/syscall.h>
 #include <linux/poll.h>
 #include <linux/personality.h>
 #include <linux/stat.h>
diff --git a/arch/s390/kernel/compat_linux.h b/arch/s390/kernel/compat_linux.h
index c07f9ca..81d6ee8 100644
--- a/arch/s390/kernel/compat_linux.h
+++ b/arch/s390/kernel/compat_linux.h
@@ -4,10 +4,6 @@
 #include <linux/compat.h>
 #include <linux/socket.h>
 #include <linux/syscalls.h>
-#include <linux/nfs_fs.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/nfsd/nfsd.h>
-#include <linux/nfsd/export.h>
 
 /* Macro that masks the high order bit of an 32 bit pointer and converts it*/
 /*       to a 64 bit pointer */
-- 
1.6.5.2


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Subject: [PATCH 4/5] lockd: Remove unused nfsd headers #includes
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In what history where these ever needed? Well not
any more.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
---
 fs/lockd/svc4proc.c |    4 ----
 fs/lockd/svcproc.c  |    4 ----
 2 files changed, 0 insertions(+), 8 deletions(-)

diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index bd173a6..a7966ee 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -11,10 +11,6 @@
 #include <linux/time.h>
 #include <linux/slab.h>
 #include <linux/smp_lock.h>
-#include <linux/in.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/sunrpc/clnt.h>
-#include <linux/nfsd/nfsd.h>
 #include <linux/lockd/lockd.h>
 #include <linux/lockd/share.h>
 
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index e1d28dd..56c9519 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -11,10 +11,6 @@
 #include <linux/time.h>
 #include <linux/slab.h>
 #include <linux/smp_lock.h>
-#include <linux/in.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/sunrpc/clnt.h>
-#include <linux/nfsd/nfsd.h>
 #include <linux/lockd/lockd.h>
 #include <linux/lockd/share.h>
 
-- 
1.6.5.2



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On Tue, Nov 24, 2009 at 07:58:15PM +0200, Boaz Harrosh wrote:
> Some arch files had unneeded #includes directives from linux/nfsd/*.
> Some vfs files had unneeded #includes directives from linux/nfsd/*.
...
> patches:
> [PATCH 1/5] parsic: remove unused nfsd #includes
> 	Some kind soul, please compile with this patch? compile
> 	is all that's needed.

Boaz,
linux-2.6 compiles for parisc with this patch. Please add:
    Tested-by: Grant Grundler <grundler-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>

thanks,
grant

> 
> [PATCH 2/5] sparc: remove unused nfsd #includes
> [PATCH 3/5] s390: remove unused nfsd #includes
> 	These two were cross compiled. Should we submit them through
> 	nfsd tree or the ARCH trees?
> 
> [PATCH 4/5] vfs: nfsctl.c unused nfsd #includes
> [PATCH 5/5] lockd: Remove unused nfsd headers #includes
> 	Can these patches go through the nfsd tree?
> 	Who's ACKs should we collect? Andrew?
> 
> Bruce Hi
> With this set applied, the only nfsd files used publicly are:
> 	const.h	export.h nfsfh.h stats.h syscall.h
> 
> These files can be moved to source folder:
> 	cache.h  debug.h  nfsd.h  state.h xdr3.h  xdr4.h  xdr.h
> 
> Why is debug.h exported from Kernel? (include/linux/nfsd/Kbuild)
> 
> So just to see how this move might look like see last patch:
> [RFC] nfsd: Move private headers to source directory
> 	This patch was compiled, as well, on x86(32/64), sparc64, s390
> 
> Thanks
> Boaz
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On Tue, Nov 24, 2009 at 07:58:15PM +0200, Boaz Harrosh wrote:
> Why is debug.h exported from Kernel? (include/linux/nfsd/Kbuild)

I suppose it's so rpcdebug can get the rpc debug flags; see e.g.
nfs-utils/tools/rpcdebug/rpcdebug.c.

--b.
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On Tue, 24 Nov 2009 20:02:00 +0200
Boaz Harrosh <bharrosh@panasas.com> wrote:

> Some unused includes removed.
> 
> This patch is in an effort to cleanup nfsd headers and move
> private definitions to source directory.
> 
> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
> ---
>  arch/s390/kernel/compat_linux.c |    6 ------
>  arch/s390/kernel/compat_linux.h |    4 ----
>  2 files changed, 0 insertions(+), 10 deletions(-)
 
The patch is fine. I'll add it to the feature branch of git390 for the
next merge window. 

-- 
blue skies,
   Martin.

"Reality continues to ruin my life." - Calvin.

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On 11/25/2009 01:08 AM, J. Bruce Fields wrote:
> On Tue, Nov 24, 2009 at 07:58:15PM +0200, Boaz Harrosh wrote:
>> Why is debug.h exported from Kernel? (include/linux/nfsd/Kbuild)
> 
> I suppose it's so rpcdebug can get the rpc debug flags; see e.g.
> nfs-utils/tools/rpcdebug/rpcdebug.c.
> 

OK, thanks, so I didn't touch it

> --b.
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On Tue, Nov 24, 2009 at 08:03:12PM +0200, Boaz Harrosh wrote:
> 
> In what history where these ever needed? Well not
> any more.

Applied, thanks.--b.

> 
> Signed-off-by: Boaz Harrosh <bharrosh-C4P08NqkoRlBDgjK7y7TUQ@public.gmane.org>
> ---
>  fs/lockd/svc4proc.c |    4 ----
>  fs/lockd/svcproc.c  |    4 ----
>  2 files changed, 0 insertions(+), 8 deletions(-)
> 
> diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
> index bd173a6..a7966ee 100644
> --- a/fs/lockd/svc4proc.c
> +++ b/fs/lockd/svc4proc.c
> @@ -11,10 +11,6 @@
>  #include <linux/time.h>
>  #include <linux/slab.h>
>  #include <linux/smp_lock.h>
> -#include <linux/in.h>
> -#include <linux/sunrpc/svc.h>
> -#include <linux/sunrpc/clnt.h>
> -#include <linux/nfsd/nfsd.h>
>  #include <linux/lockd/lockd.h>
>  #include <linux/lockd/share.h>
>  
> diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
> index e1d28dd..56c9519 100644
> --- a/fs/lockd/svcproc.c
> +++ b/fs/lockd/svcproc.c
> @@ -11,10 +11,6 @@
>  #include <linux/time.h>
>  #include <linux/slab.h>
>  #include <linux/smp_lock.h>
> -#include <linux/in.h>
> -#include <linux/sunrpc/svc.h>
> -#include <linux/sunrpc/clnt.h>
> -#include <linux/nfsd/nfsd.h>
>  #include <linux/lockd/lockd.h>
>  #include <linux/lockd/share.h>
>  
> -- 
> 1.6.5.2
> 
> 
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To: Boaz Harrosh <bharrosh-C4P08NqkoRlBDgjK7y7TUQ@public.gmane.org>
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On Tue, Nov 24, 2009 at 08:04:12PM +0200, Boaz Harrosh wrote:
> 
> Only linux/nfsd/syscall.h is actually used. Remove the
> other nfsd #includes, so they can be moved to source
> directory.

I guess I'll take this one too.

The arch-specific ones I'm assuming are someone else's problem unless I
hear otherwise.

--b.

> 
> Signed-off-by: Boaz Harrosh <bharrosh-C4P08NqkoRlBDgjK7y7TUQ@public.gmane.org>
> ---
>  fs/nfsctl.c |    2 --
>  1 files changed, 0 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/nfsctl.c b/fs/nfsctl.c
> index 8f9a205..d3854d9 100644
> --- a/fs/nfsctl.c
> +++ b/fs/nfsctl.c
> @@ -7,8 +7,6 @@
>  #include <linux/types.h>
>  #include <linux/file.h>
>  #include <linux/fs.h>
> -#include <linux/sunrpc/svc.h>
> -#include <linux/nfsd/nfsd.h>
>  #include <linux/nfsd/syscall.h>
>  #include <linux/cred.h>
>  #include <linux/sched.h>
> -- 
> 1.6.5.2
> 
> 
--
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On Tue, Nov 24, 2009 at 08:05:14PM +0200, Boaz Harrosh wrote:
> 
> Lots of include/linux/nfsd/* headers are only used by
> nfsd module. Move them to the source directory

Fine by me; I guess just resubmit this after the others go in.

--b.

> 
> Signed-off-by: Boaz Harrosh <bharrosh-C4P08NqkoRlBDgjK7y7TUQ@public.gmane.org>
> ---
>  fs/nfsd/auth.c                     |    2 +-
>  {include/linux => fs}/nfsd/cache.h |    0
>  fs/nfsd/export.c                   |    3 ++-
>  fs/nfsd/lockd.c                    |    2 +-
>  fs/nfsd/nfs2acl.c                  |    7 ++++---
>  fs/nfsd/nfs3acl.c                  |    7 ++++---
>  fs/nfsd/nfs3proc.c                 |    4 ++--
>  fs/nfsd/nfs3xdr.c                  |    2 +-
>  fs/nfsd/nfs4callback.c             |    4 ++--
>  fs/nfsd/nfs4proc.c                 |    4 ++--
>  fs/nfsd/nfs4recover.c              |    5 +++--
>  fs/nfsd/nfs4state.c                |    2 +-
>  fs/nfsd/nfs4xdr.c                  |    3 ++-
>  fs/nfsd/nfscache.c                 |    4 ++--
>  fs/nfsd/nfsctl.c                   |    5 +++--
>  {include/linux => fs}/nfsd/nfsd.h  |    0
>  fs/nfsd/nfsfh.c                    |    2 +-
>  fs/nfsd/nfsproc.c                  |    4 ++--
>  fs/nfsd/nfssvc.c                   |    4 ++--
>  fs/nfsd/nfsxdr.c                   |    2 +-
>  {include/linux => fs}/nfsd/state.h |    0
>  fs/nfsd/stats.c                    |    4 ++--
>  fs/nfsd/vfs.c                      |   18 ++++++++++--------
>  {include/linux => fs}/nfsd/xdr.h   |    2 +-
>  {include/linux => fs}/nfsd/xdr3.h  |    2 +-
>  {include/linux => fs}/nfsd/xdr4.h  |    4 ++--
>  26 files changed, 52 insertions(+), 44 deletions(-)
>  rename {include/linux => fs}/nfsd/cache.h (100%)
>  rename {include/linux => fs}/nfsd/nfsd.h (100%)
>  rename {include/linux => fs}/nfsd/state.h (100%)
>  rename {include/linux => fs}/nfsd/xdr.h (99%)
>  rename {include/linux => fs}/nfsd/xdr3.h (99%)
>  rename {include/linux => fs}/nfsd/xdr4.h (99%)
> 
> diff --git a/fs/nfsd/auth.c b/fs/nfsd/auth.c
> index ad354d2..71209d4 100644
> --- a/fs/nfsd/auth.c
> +++ b/fs/nfsd/auth.c
> @@ -5,7 +5,7 @@
>   */
>  
>  #include <linux/sched.h>
> -#include <linux/nfsd/nfsd.h>
> +#include "nfsd.h"
>  #include "auth.h"
>  
>  int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp)
> diff --git a/include/linux/nfsd/cache.h b/fs/nfsd/cache.h
> similarity index 100%
> rename from include/linux/nfsd/cache.h
> rename to fs/nfsd/cache.h
> diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
> index 68e63f4..cb3dae2 100644
> --- a/fs/nfsd/export.c
> +++ b/fs/nfsd/export.c
> @@ -18,10 +18,11 @@
>  #include <linux/module.h>
>  #include <linux/exportfs.h>
>  
> -#include <linux/nfsd/nfsd.h>
>  #include <linux/nfsd/syscall.h>
>  #include <net/ipv6.h>
>  
> +#include "nfsd.h"
> +
>  #define NFSDDBG_FACILITY	NFSDDBG_EXPORT
>  
>  typedef struct auth_domain	svc_client;
> diff --git a/fs/nfsd/lockd.c b/fs/nfsd/lockd.c
> index 801ef71..6f12777 100644
> --- a/fs/nfsd/lockd.c
> +++ b/fs/nfsd/lockd.c
> @@ -9,8 +9,8 @@
>   */
>  
>  #include <linux/file.h>
> -#include <linux/nfsd/nfsd.h>
>  #include <linux/lockd/bind.h>
> +#include "nfsd.h"
>  #include "vfs.h"
>  
>  #define NFSDDBG_FACILITY		NFSDDBG_LOCKD
> diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
> index a54628d..874e2a9 100644
> --- a/fs/nfsd/nfs2acl.c
> +++ b/fs/nfsd/nfs2acl.c
> @@ -6,10 +6,11 @@
>   * Copyright (C) 2002-2003 Andreas Gruenbacher <agruen-l3A5Bk7waGM@public.gmane.org>
>   */
>  
> -#include <linux/nfsd/nfsd.h>
> -#include <linux/nfsd/cache.h>
> -#include <linux/nfsd/xdr3.h>
> +#include "nfsd.h"
> +/* FIXME: nfsacl.h is a broken header */
>  #include <linux/nfsacl.h>
> +#include "cache.h"
> +#include "xdr3.h"
>  #include "vfs.h"
>  
>  #define NFSDDBG_FACILITY		NFSDDBG_PROC
> diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c
> index 2f5c61b..c6011dd 100644
> --- a/fs/nfsd/nfs3acl.c
> +++ b/fs/nfsd/nfs3acl.c
> @@ -6,10 +6,11 @@
>   * Copyright (C) 2002-2003 Andreas Gruenbacher <agruen-l3A5Bk7waGM@public.gmane.org>
>   */
>  
> -#include <linux/nfsd/nfsd.h>
> -#include <linux/nfsd/cache.h>
> -#include <linux/nfsd/xdr3.h>
> +#include "nfsd.h"
> +/* FIXME: nfsacl.h is a broken header */
>  #include <linux/nfsacl.h>
> +#include "cache.h"
> +#include "xdr3.h"
>  #include "vfs.h"
>  
>  #define RETURN_STATUS(st)	{ resp->status = (st); return (st); }
> diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
> index b694b43..90b19ca 100644
> --- a/fs/nfsd/nfs3proc.c
> +++ b/fs/nfsd/nfs3proc.c
> @@ -10,8 +10,8 @@
>  #include <linux/ext2_fs.h>
>  #include <linux/magic.h>
>  
> -#include <linux/nfsd/cache.h>
> -#include <linux/nfsd/xdr3.h>
> +#include "cache.h"
> +#include "xdr3.h"
>  #include "vfs.h"
>  
>  #define NFSDDBG_FACILITY		NFSDDBG_PROC
> diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
> index 623e13a..c523bb8 100644
> --- a/fs/nfsd/nfs3xdr.c
> +++ b/fs/nfsd/nfs3xdr.c
> @@ -9,7 +9,7 @@
>   */
>  
>  #include <linux/namei.h>
> -#include <linux/nfsd/xdr3.h>
> +#include "xdr3.h"
>  #include "auth.h"
>  
>  #define NFSDDBG_FACILITY		NFSDDBG_XDR
> diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
> index 4fe3960..f7a3158 100644
> --- a/fs/nfsd/nfs4callback.c
> +++ b/fs/nfsd/nfs4callback.c
> @@ -34,8 +34,8 @@
>   */
>  
>  #include <linux/sunrpc/clnt.h>
> -#include <linux/nfsd/nfsd.h>
> -#include <linux/nfsd/state.h>
> +#include "nfsd.h"
> +#include "state.h"
>  
>  #define NFSDDBG_FACILITY                NFSDDBG_PROC
>  
> diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
> index d0e04cb..f8a37c4 100644
> --- a/fs/nfsd/nfs4proc.c
> +++ b/fs/nfsd/nfs4proc.c
> @@ -36,8 +36,8 @@
>   */
>  #include <linux/file.h>
>  
> -#include <linux/nfsd/cache.h>
> -#include <linux/nfsd/xdr4.h>
> +#include "cache.h"
> +#include "xdr4.h"
>  #include "vfs.h"
>  
>  #define NFSDDBG_FACILITY		NFSDDBG_PROC
> diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
> index 48742f2..6744e7f 100644
> --- a/fs/nfsd/nfs4recover.c
> +++ b/fs/nfsd/nfs4recover.c
> @@ -33,12 +33,13 @@
>  *
>  */
>  
> -#include <linux/nfsd/nfsd.h>
> -#include <linux/nfsd/state.h>
>  #include <linux/file.h>
>  #include <linux/namei.h>
>  #include <linux/crypto.h>
>  #include <linux/sched.h>
> +
> +#include "nfsd.h"
> +#include "state.h"
>  #include "vfs.h"
>  
>  #define NFSDDBG_FACILITY                NFSDDBG_PROC
> diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
> index 1fe6e29..2923e6c 100644
> --- a/fs/nfsd/nfs4state.c
> +++ b/fs/nfsd/nfs4state.c
> @@ -36,11 +36,11 @@
>  
>  #include <linux/file.h>
>  #include <linux/smp_lock.h>
> -#include <linux/nfsd/xdr4.h>
>  #include <linux/namei.h>
>  #include <linux/swap.h>
>  #include <linux/sunrpc/svcauth_gss.h>
>  #include <linux/sunrpc/clnt.h>
> +#include "xdr4.h"
>  #include "vfs.h"
>  
>  #define NFSDDBG_FACILITY                NFSDDBG_PROC
> diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
> index 2fa9682..cab9780 100644
> --- a/fs/nfsd/nfs4xdr.c
> +++ b/fs/nfsd/nfs4xdr.c
> @@ -43,10 +43,11 @@
>  #include <linux/namei.h>
>  #include <linux/statfs.h>
>  #include <linux/utsname.h>
> -#include <linux/nfsd/xdr4.h>
>  #include <linux/nfsd_idmap.h>
>  #include <linux/nfs4_acl.h>
>  #include <linux/sunrpc/svcauth_gss.h>
> +
> +#include "xdr4.h"
>  #include "vfs.h"
>  
>  #define NFSDDBG_FACILITY		NFSDDBG_XDR
> diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
> index 96694b8..18aa972 100644
> --- a/fs/nfsd/nfscache.c
> +++ b/fs/nfsd/nfscache.c
> @@ -10,8 +10,8 @@
>   * Copyright (C) 1995, 1996 Olaf Kirch <okir-pn4DOG8n3UYbFoVRYvo4fw@public.gmane.org>
>   */
>  
> -#include <linux/nfsd/nfsd.h>
> -#include <linux/nfsd/cache.h>
> +#include "nfsd.h"
> +#include "cache.h"
>  
>  /* Size of reply cache. Common values are:
>   * 4.3BSD:	128
> diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
> index e4f49fd..0415680 100644
> --- a/fs/nfsd/nfsctl.c
> +++ b/fs/nfsd/nfsctl.c
> @@ -11,12 +11,13 @@
>  
>  #include <linux/nfsd_idmap.h>
>  #include <linux/sunrpc/svcsock.h>
> -#include <linux/nfsd/nfsd.h>
> -#include <linux/nfsd/cache.h>
>  #include <linux/nfsd/syscall.h>
>  #include <linux/lockd/lockd.h>
>  #include <linux/sunrpc/clnt.h>
>  
> +#include "nfsd.h"
> +#include "cache.h"
> +
>  /*
>   *	We have a single directory with 9 nodes in it.
>   */
> diff --git a/include/linux/nfsd/nfsd.h b/fs/nfsd/nfsd.h
> similarity index 100%
> rename from include/linux/nfsd/nfsd.h
> rename to fs/nfsd/nfsd.h
> diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
> index 4ef4601..2bf9efb 100644
> --- a/fs/nfsd/nfsfh.c
> +++ b/fs/nfsd/nfsfh.c
> @@ -12,7 +12,7 @@
>  #include <linux/exportfs.h>
>  
>  #include <linux/sunrpc/svcauth_gss.h>
> -#include <linux/nfsd/nfsd.h>
> +#include "nfsd.h"
>  #include "vfs.h"
>  #include "auth.h"
>  
> diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
> index b6bd9e0..21a5f79 100644
> --- a/fs/nfsd/nfsproc.c
> +++ b/fs/nfsd/nfsproc.c
> @@ -9,8 +9,8 @@
>  
>  #include <linux/namei.h>
>  
> -#include <linux/nfsd/cache.h>
> -#include <linux/nfsd/xdr.h>
> +#include "cache.h"
> +#include "xdr.h"
>  #include "vfs.h"
>  
>  typedef struct svc_rqst	svc_rqst;
> diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
> index b2d7ffa..b520ce1 100644
> --- a/fs/nfsd/nfssvc.c
> +++ b/fs/nfsd/nfssvc.c
> @@ -15,11 +15,11 @@
>  
>  #include <linux/sunrpc/stats.h>
>  #include <linux/sunrpc/svcsock.h>
> -#include <linux/nfsd/nfsd.h>
> -#include <linux/nfsd/cache.h>
>  #include <linux/lockd/bind.h>
>  #include <linux/nfsacl.h>
>  #include <linux/seq_file.h>
> +#include "nfsd.h"
> +#include "cache.h"
>  #include "vfs.h"
>  
>  #define NFSDDBG_FACILITY	NFSDDBG_SVC
> diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
> index 5e0603d..3bec831 100644
> --- a/fs/nfsd/nfsxdr.c
> +++ b/fs/nfsd/nfsxdr.c
> @@ -6,7 +6,7 @@
>   * Copyright (C) 1995, 1996 Olaf Kirch <okir-pn4DOG8n3UYbFoVRYvo4fw@public.gmane.org>
>   */
>  
> -#include <linux/nfsd/xdr.h>
> +#include "xdr.h"
>  #include "auth.h"
>  
>  #define NFSDDBG_FACILITY		NFSDDBG_XDR
> diff --git a/include/linux/nfsd/state.h b/fs/nfsd/state.h
> similarity index 100%
> rename from include/linux/nfsd/state.h
> rename to fs/nfsd/state.h
> diff --git a/fs/nfsd/stats.c b/fs/nfsd/stats.c
> index e3e411e..3fc69df 100644
> --- a/fs/nfsd/stats.c
> +++ b/fs/nfsd/stats.c
> @@ -25,11 +25,11 @@
>  
>  #include <linux/seq_file.h>
>  #include <linux/module.h>
> -
>  #include <linux/sunrpc/stats.h>
> -#include <linux/nfsd/nfsd.h>
>  #include <linux/nfsd/stats.h>
>  
> +#include "nfsd.h"
> +
>  struct nfsd_stats	nfsdstats;
>  struct svc_stat		nfsd_svcstats = {
>  	.program	= &nfsd_program,
> diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
> index 81ce108..04bdba1 100644
> --- a/fs/nfsd/vfs.c
> +++ b/fs/nfsd/vfs.c
> @@ -22,23 +22,25 @@
>  #include <linux/fcntl.h>
>  #include <linux/namei.h>
>  #include <linux/delay.h>
> -#include <linux/nfsd/nfsd.h>
> -#ifdef CONFIG_NFSD_V3
> -#include <linux/nfsd/xdr3.h>
> -#endif /* CONFIG_NFSD_V3 */
>  #include <linux/quotaops.h>
>  #include <linux/fsnotify.h>
>  #include <linux/posix_acl_xattr.h>
>  #include <linux/xattr.h>
> +#include <linux/jhash.h>
> +#include <linux/ima.h>
> +#include <asm/uaccess.h>
> +
> +#ifdef CONFIG_NFSD_V3
> +#include "xdr3.h"
> +#endif /* CONFIG_NFSD_V3 */
> +
>  #ifdef CONFIG_NFSD_V4
>  #include <linux/nfs4_acl.h>
>  #include <linux/nfsd_idmap.h>
>  #endif /* CONFIG_NFSD_V4 */
> -#include <linux/jhash.h>
> -#include <linux/ima.h>
> -#include "vfs.h"
>  
> -#include <asm/uaccess.h>
> +#include "nfsd.h"
> +#include "vfs.h"
>  
>  #define NFSDDBG_FACILITY		NFSDDBG_FILEOP
>  
> diff --git a/include/linux/nfsd/xdr.h b/fs/nfsd/xdr.h
> similarity index 99%
> rename from include/linux/nfsd/xdr.h
> rename to fs/nfsd/xdr.h
> index 58f824d..235ee5c 100644
> --- a/include/linux/nfsd/xdr.h
> +++ b/fs/nfsd/xdr.h
> @@ -8,7 +8,7 @@
>  #define LINUX_NFSD_H
>  
>  #include <linux/vfs.h>
> -#include <linux/nfsd/nfsd.h>
> +#include "nfsd.h"
>  
>  struct nfsd_fhandle {
>  	struct svc_fh		fh;
> diff --git a/include/linux/nfsd/xdr3.h b/fs/nfsd/xdr3.h
> similarity index 99%
> rename from include/linux/nfsd/xdr3.h
> rename to fs/nfsd/xdr3.h
> index 421eddd..b330756 100644
> --- a/include/linux/nfsd/xdr3.h
> +++ b/fs/nfsd/xdr3.h
> @@ -9,7 +9,7 @@
>  #ifndef _LINUX_NFSD_XDR3_H
>  #define _LINUX_NFSD_XDR3_H
>  
> -#include <linux/nfsd/xdr.h>
> +#include "xdr.h"
>  
>  struct nfsd3_sattrargs {
>  	struct svc_fh		fh;
> diff --git a/include/linux/nfsd/xdr4.h b/fs/nfsd/xdr4.h
> similarity index 99%
> rename from include/linux/nfsd/xdr4.h
> rename to fs/nfsd/xdr4.h
> index 1bf2662..83202a1 100644
> --- a/include/linux/nfsd/xdr4.h
> +++ b/fs/nfsd/xdr4.h
> @@ -39,8 +39,8 @@
>  #ifndef _LINUX_NFSD_XDR4_H
>  #define _LINUX_NFSD_XDR4_H
>  
> -#include <linux/nfsd/state.h>
> -#include <linux/nfsd/nfsd.h>
> +#include "state.h"
> +#include "nfsd.h"
>  
>  #define NFSD4_MAX_TAGLEN	128
>  #define XDR_LEN(n)                     (((n) + 3) & ~3)
> -- 
> 1.6.5.2
> 
> 
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From - Thu Nov 08 21:05:13 2018
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Newsgroups: gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: Re: [PATCH 4/5] lockd: Remove unused nfsd headers #includes
Date: Wed, 25 Nov 2009 15:23:24 -0500
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	linux-parisc <linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
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To: Boaz Harrosh <bharrosh-C4P08NqkoRlBDgjK7y7TUQ@public.gmane.org>
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On Wed, Nov 25, 2009 at 03:10:11PM -0500, J. Bruce Fields wrote:
> On Tue, Nov 24, 2009 at 08:03:12PM +0200, Boaz Harrosh wrote:
> > 
> > In what history where these ever needed? Well not
> > any more.
> 
> Applied, thanks.--b.

Um, I said that before I actually tried to compile it....  OK, dropping
for now (assuming I'm missing some earlier patch).

--b.

> 
> > 
> > Signed-off-by: Boaz Harrosh <bharrosh-C4P08NqkoRlBDgjK7y7TUQ@public.gmane.org>
> > ---
> >  fs/lockd/svc4proc.c |    4 ----
> >  fs/lockd/svcproc.c  |    4 ----
> >  2 files changed, 0 insertions(+), 8 deletions(-)
> > 
> > diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
> > index bd173a6..a7966ee 100644
> > --- a/fs/lockd/svc4proc.c
> > +++ b/fs/lockd/svc4proc.c
> > @@ -11,10 +11,6 @@
> >  #include <linux/time.h>
> >  #include <linux/slab.h>
> >  #include <linux/smp_lock.h>
> > -#include <linux/in.h>
> > -#include <linux/sunrpc/svc.h>
> > -#include <linux/sunrpc/clnt.h>
> > -#include <linux/nfsd/nfsd.h>
> >  #include <linux/lockd/lockd.h>
> >  #include <linux/lockd/share.h>
> >  
> > diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
> > index e1d28dd..56c9519 100644
> > --- a/fs/lockd/svcproc.c
> > +++ b/fs/lockd/svcproc.c
> > @@ -11,10 +11,6 @@
> >  #include <linux/time.h>
> >  #include <linux/slab.h>
> >  #include <linux/smp_lock.h>
> > -#include <linux/in.h>
> > -#include <linux/sunrpc/svc.h>
> > -#include <linux/sunrpc/clnt.h>
> > -#include <linux/nfsd/nfsd.h>
> >  #include <linux/lockd/lockd.h>
> >  #include <linux/lockd/share.h>
> >  
> > -- 
> > 1.6.5.2
> > 
> > 
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From: David Miller <davem@davemloft.net>
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Subject: Re: [PATCH 2/5] sparc: remove unused nfsd #includes
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From: Boaz Harrosh <bharrosh@panasas.com>
Date: Tue, 24 Nov 2009 20:01:00 +0200

> 
> Some unused includes removed.
> 
> In an effort to cleanup nfsd headers and move private
> definitions to source directory.
> 
> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>

Applied to sparc-next-2.6, thank you.
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On 11/25/2009 10:23 PM, J. Bruce Fields wrote:
> On Wed, Nov 25, 2009 at 03:10:11PM -0500, J. Bruce Fields wrote:
>> On Tue, Nov 24, 2009 at 08:03:12PM +0200, Boaz Harrosh wrote:
>>>
>>> In what history where these ever needed? Well not
>>> any more.
>>
>> Applied, thanks.--b.
> 
> Um, I said that before I actually tried to compile it....  OK, dropping
> for now (assuming I'm missing some earlier patch).
> 
> --b.
> 

OK, I didn't realize it but, yes I have these on top of the previous 6
so it makes sense.

I have posted the previous 6 rebased on your new current tree, have you seen
it? All the patches are the same but [5/6] which has a "version 3". Do I need
to re post?

Thanks
Boaz
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From - Thu Nov 08 21:05:14 2018
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From: Boaz Harrosh <bharrosh@panasas.com>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.nfs
Subject: Re: [PATCH 1/5] parsic: remove unused nfsd #includes
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To: "J. Bruce Fields" <bfields@citi.umich.edu>,
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	Grant Grundler <grundler@parisc-linux.org>,
	Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <de
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On 11/24/2009 11:27 PM, Grant Grundler wrote:
> On Tue, Nov 24, 2009 at 07:58:15PM +0200, Boaz Harrosh wrote:
>> Some arch files had unneeded #includes directives from linux/nfsd/*.
>> Some vfs files had unneeded #includes directives from linux/nfsd/*.
> ...
>> patches:
>> [PATCH 1/5] parsic: remove unused nfsd #includes
>> 	Some kind soul, please compile with this patch? compile
>> 	is all that's needed.
> 
> Boaz,
> linux-2.6 compiles for parisc with this patch. Please add:
>     Tested-by: Grant Grundler <grundler@parisc-linux.org>
> 
> thanks,
> grant
> 

CCing registered parsic maintainers. Could we please get an ACK on
this patch, and cary this through the nfsd tree?

Thanks 
Boaz

On 11/24/2009 07:59 PM, Boaz Harrosh wrote:
> 
> Some unused includes removed.
> 
> This patch is in an effort to cleanup nfsd headers and move
> private definitions to source directory.
> 
> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
> ---
>  arch/parisc/kernel/sys_parisc32.c |    6 ------
>  1 files changed, 0 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
> index 561388b..4a8ca63 100644
> --- a/arch/parisc/kernel/sys_parisc32.c
> +++ b/arch/parisc/kernel/sys_parisc32.c
> @@ -26,13 +26,7 @@
>  #include <linux/shm.h>
>  #include <linux/slab.h>
>  #include <linux/uio.h>
> -#include <linux/nfs_fs.h>
>  #include <linux/ncp_fs.h>
> -#include <linux/sunrpc/svc.h>
> -#include <linux/nfsd/nfsd.h>
> -#include <linux/nfsd/cache.h>
> -#include <linux/nfsd/xdr.h>
> -#include <linux/nfsd/syscall.h>
>  #include <linux/poll.h>
>  #include <linux/personality.h>
>  #include <linux/stat.h>

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From - Thu Nov 08 21:05:14 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.sparc,gmane.linux.nfs
Subject: Re: [PATCH 1/5] parsic: remove unused nfsd #includes
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Cc: "J. Bruce Fields" <bfields@citi.umich.edu>,
	linux-parisc <linux-parisc@vger.kernel.org>,
	Grant Grundler <grundler@parisc-linux.org>,
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To: Boaz Harrosh <bharrosh@panasas.com>
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On 11/26/2009 03:46 PM, Boaz Harrosh wrote:
> On 11/24/2009 11:27 PM, Grant Grundler wrote:
>> On Tue, Nov 24, 2009 at 07:58:15PM +0200, Boaz Harrosh wrote:
>>> Some arch files had unneeded #includes directives from linux/nfsd/*.
>>> Some vfs files had unneeded #includes directives from linux/nfsd/*.
>> ...
>>> patches:
>>> [PATCH 1/5] parsic: remove unused nfsd #includes
>>> 	Some kind soul, please compile with this patch? compile
>>> 	is all that's needed.
>>
>> Boaz,
>> linux-2.6 compiles for parisc with this patch. Please add:
>>      Tested-by: Grant Grundler<grundler@parisc-linux.org>
>>
>> thanks,
>> grant
>>
>
> CCing registered parsic maintainers. Could we please get an ACK on
> this patch, and cary this through the nfsd tree?

Sure.

Acked-by: Helge Deller <deller@gmx.de>

Helge


>
> Thanks
> Boaz
>
> On 11/24/2009 07:59 PM, Boaz Harrosh wrote:
>>
>> Some unused includes removed.
>>
>> This patch is in an effort to cleanup nfsd headers and move
>> private definitions to source directory.
>>
>> Signed-off-by: Boaz Harrosh<bharrosh@panasas.com>
>> ---
>>   arch/parisc/kernel/sys_parisc32.c |    6 ------
>>   1 files changed, 0 insertions(+), 6 deletions(-)
>>
>> diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
>> index 561388b..4a8ca63 100644
>> --- a/arch/parisc/kernel/sys_parisc32.c
>> +++ b/arch/parisc/kernel/sys_parisc32.c
>> @@ -26,13 +26,7 @@
>>   #include<linux/shm.h>
>>   #include<linux/slab.h>
>>   #include<linux/uio.h>
>> -#include<linux/nfs_fs.h>
>>   #include<linux/ncp_fs.h>
>> -#include<linux/sunrpc/svc.h>
>> -#include<linux/nfsd/nfsd.h>
>> -#include<linux/nfsd/cache.h>
>> -#include<linux/nfsd/xdr.h>
>> -#include<linux/nfsd/syscall.h>
>>   #include<linux/poll.h>
>>   #include<linux/personality.h>
>>   #include<linux/stat.h>
>
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From: Alexey Dobriyan <adobriyan@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: convert /proc/pdc/{lcd,led} to seq_file
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Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---

 drivers/parisc/led.c |   59 +++++++++++++++++++++++++--------------------------
 1 file changed, 29 insertions(+), 30 deletions(-)

--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -38,6 +38,7 @@
 #include <linux/kernel_stat.h>
 #include <linux/reboot.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/ctype.h>
 #include <linux/blkdev.h>
 #include <linux/workqueue.h>
@@ -147,41 +148,34 @@ device_initcall(start_task);
 static void (*led_func_ptr) (unsigned char) __read_mostly;
 
 #ifdef CONFIG_PROC_FS
-static int led_proc_read(char *page, char **start, off_t off, int count, 
-	int *eof, void *data)
+static int led_proc_show(struct seq_file *m, void *v)
 {
-	char *out = page;
-	int len;
-
-	switch ((long)data)
+	switch ((long)m->private)
 	{
 	case LED_NOLCD:
-		out += sprintf(out, "Heartbeat: %d\n", led_heartbeat);
-		out += sprintf(out, "Disk IO: %d\n", led_diskio);
-		out += sprintf(out, "LAN Rx/Tx: %d\n", led_lanrxtx);
+		seq_printf(m, "Heartbeat: %d\n", led_heartbeat);
+		seq_printf(m, "Disk IO: %d\n", led_diskio);
+		seq_printf(m, "LAN Rx/Tx: %d\n", led_lanrxtx);
 		break;
 	case LED_HASLCD:
-		out += sprintf(out, "%s\n", lcd_text);
+		seq_printf(m, "%s\n", lcd_text);
 		break;
 	default:
-		*eof = 1;
 		return 0;
 	}
+	return 0;
+}
 
-	len = out - page - off;
-	if (len < count) {
-		*eof = 1;
-		if (len <= 0) return 0;
-	} else {
-		len = count;
-	}
-	*start = page + off;
-	return len;
+static int led_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, led_proc_show, PDE(inode)->data);
 }
 
-static int led_proc_write(struct file *file, const char *buf, 
-	unsigned long count, void *data)
+
+static ssize_t led_proc_write(struct file *file, const char *buf,
+	size_t count, loff_t *pos)
 {
+	void *data = PDE(file->f_path.dentry->d_inode)->data;
 	char *cur, lbuf[count + 1];
 	int d;
 
@@ -234,6 +228,15 @@ parse_error:
 	return -EINVAL;
 }
 
+static const struct file_operations led_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= led_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= led_proc_write,
+};
+
 static int __init led_create_procfs(void)
 {
 	struct proc_dir_entry *proc_pdc_root = NULL;
@@ -243,19 +246,15 @@ static int __init led_create_procfs(void)
 
 	proc_pdc_root = proc_mkdir("pdc", 0);
 	if (!proc_pdc_root) return -1;
-	ent = create_proc_entry("led", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
+	ent = proc_create_data("led", S_IRUGO|S_IWUSR, proc_pdc_root,
+				&led_proc_fops, (void *)LED_NOLCD); /* LED */
 	if (!ent) return -1;
-	ent->data = (void *)LED_NOLCD; /* LED */
-	ent->read_proc = led_proc_read;
-	ent->write_proc = led_proc_write;
 
 	if (led_type == LED_HASLCD)
 	{
-		ent = create_proc_entry("lcd", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
+		ent = proc_create_data("lcd", S_IRUGO|S_IWUSR, proc_pdc_root,
+					&led_proc_fops, (void *)LED_HASLCD); /* LCD */
 		if (!ent) return -1;
-		ent->data = (void *)LED_HASLCD; /* LCD */
-		ent->read_proc = led_proc_read;
-		ent->write_proc = led_proc_write;
 	}
 
 	return 0;
--
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From - Thu Nov 08 21:05:14 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: kernel segv with 2.6.31-rc6 ?
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To: Rusty Russell <rusty@rustcorp.com.au>,
	linux-parisc@vger.kernel.org, Kyle McMartin <kyle@mcmartin.ca>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
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* Rusty Russell <rusty@rustcorp.com.au>:
> On Wed, 19 Aug 2009 09:39:24 am James Bottomley wrote:
> > Even with the duplicate name, though, the module should be perfectly
> > loadable.
> 
> In a perfect world, yes, but there are places which assume they'll be
> unique and I always thought that reasonable.
> 
> Front of my mind is /sys/module/<MODNAME/sections/ which has one file
> per section.

I just noticed, that on parisc the duplicate sections do have a
size of "0 bytes". Objdump shows that:

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  1 .text         00000000  00000000  00000000  00000058  2**0     
                  CONTENTS, ALLOC, LOAD, READONLY, CODE            
  5 .text         00000000  00000000  00000000  000000d4  2**0       
                  CONTENTS, ALLOC, LOAD, READONLY, CODE    

> Let's figure out how it happened tho; I'd rather fail cleanly than break
> subtly and horribly later...


Since the sections are empty anyway, I don't see any reason
why those section names need to be exported via sysfs.

Let's just drop them, which works for parisc (and should for any
other architecture too).

A patch is attached to
http://bugzilla.kernel.org/show_bug.cgi?id=14703

and here:


[PATCH] modules: don't export section names of empty sections via sysfs

This patch fixes a "Badness at fs/sysfs/dir.c:487" warning on parisc, where
duplicate section names in kernel modules are common.

Signed-off-by: Helge Deller <deller@gmx.de>
CC: rusty@rustcorp.com.au
CC: James.Bottomley@HansenPartnership.com
CC: roland@redhat.com
CC: dave@hiauly1.hia.nrc.ca

diff --git a/kernel/module.c b/kernel/module.c
index 8b7d880..5842a71 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1187,7 +1187,8 @@ static void add_sect_attrs(struct module *mod, unsigned int nsect,
 
 	/* Count loaded sections and allocate structures */
 	for (i = 0; i < nsect; i++)
-		if (sechdrs[i].sh_flags & SHF_ALLOC)
+		if (sechdrs[i].sh_flags & SHF_ALLOC
+		    && sechdrs[i].sh_size)
 			nloaded++;
 	size[0] = ALIGN(sizeof(*sect_attrs)
 			+ nloaded * sizeof(sect_attrs->attrs[0]),
@@ -1207,6 +1208,8 @@ static void add_sect_attrs(struct module *mod, unsigned int nsect,
 	for (i = 0; i < nsect; i++) {
 		if (! (sechdrs[i].sh_flags & SHF_ALLOC))
 			continue;
+		if (!sechdrs[i].sh_size)
+			continue;
 		sattr->address = sechdrs[i].sh_addr;
 		sattr->name = kstrdup(secstrings + sechdrs[i].sh_name,
 					GFP_KERNEL);
--
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Changes to fcntl.h and F_* numbers?
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
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On 11/20/2009 11:57 PM, Carlos O'Donell wrote:
> On Thu, Nov 19, 2009 at 12:23 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com>  wrote:
>> On Thu, 2009-11-19 at 12:00 -0500, Carlos O'Donell wrote:
>>> On Wed, Nov 18, 2009 at 10:22 PM, Kyle McMartin<kyle@mcmartin.ca>  wrote:
>>>> On Wed, Nov 18, 2009 at 03:22:15PM -0500, Carlos O'Donell wrote:
>>>>> Kyle, Helge,
>>>>>
>>>>> I've seen some recent churn regarding the kernel fcntl.h and F_* numbers.
>>>>>
>>>>> If our numbers change please keep me in the loop so I can update the C
>>>>> library side.
>>>>>
>>>>
>>>> ?
>>>
>>> http://marc.info/?l=linux-api&m=125688056905828&w=2
>>
>> But this isn't parisc specific ... it's a bug CodeSourcery reported in
>> the ABI assignment in asm-generic.
>
> Yes, that's correct, the original issue doesn't apply to parisc.
>
> I pull from kyle's tree here:
> git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
>
> In kyle's tree I see:
> "arch/parisc/include/asm/fcntl.h"
> #define F_GETOWN_EX     15
> #define F_SETOWN_EX     16
>
> The original message that Joseph Myers at CodeSourcery posted here:
> http://marc.info/?l=linux-api&m=125466028819859&w=2
>
> Does not apply to us.
>
>> We already look to have this sorted out locally in our fcntl.h ... so
>> we're not going to be changing anything, are we?  Or are you saying
>> (because we could get into trouble in future) that we should adopt the
>> asm generic ones?
>
> I don't think we have to change anything.
>
> It would probably be less maintenance for Kyle in the future if we
> adopted the generic ones for future flags.
>
> The message I referenced here:
> http://marc.info/?l=linux-api&m=125688056905828&w=2
>
> by Stephen Rothwell<sfr@canb.auug.org.au>, has a parisc specific piece here:
>
> ~~~
> diff --git a/arch/parisc/include/asm/fcntl.h b/arch/parisc/include/asm/fcntl.h
> index 5f39d55..1e1c824 100644
> --- a/arch/parisc/include/asm/fcntl.h
> +++ b/arch/parisc/include/asm/fcntl.h
> @@ -28,8 +28,6 @@
>   #define F_SETOWN	12	/*  for sockets. */
>   #define F_SETSIG	13	/*  for sockets. */
>   #define F_GETSIG	14	/*  for sockets. */
> -#define F_GETOWN_EX	15
> -#define F_SETOWN_EX	16
>
>   /* for posix fcntl() and lockf() */
>   #define F_RDLCK		01
> ~~~
>
> I don't know why he wants to remove bits from our fcntl.h.
>
> The intent of my original email was to say "Hi! I'm the libc
> maintainer, I'll fix things if you notice a problem."
>
> I'm pretty sure I'm on linux-api, but I missed this issue.
>
> Cheres,
> Carlos.

Hi Carlos,

FWIW, Stephen's patch has been applied to mainline (2.6.32-rc8) in the meantime...

Helge
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: convert /proc/pdc/{lcd,led} to seq_file
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On Fri, Nov 27, 2009 at 09:51:12AM +0300, Alexey Dobriyan wrote:
> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>

No commit comment?

> ---
> 
>  drivers/parisc/led.c |   59 +++++++++++++++++++++++++--------------------------
>  1 file changed, 29 insertions(+), 30 deletions(-)
> 
> --- a/drivers/parisc/led.c
> +++ b/drivers/parisc/led.c
> @@ -38,6 +38,7 @@
>  #include <linux/kernel_stat.h>
>  #include <linux/reboot.h>
>  #include <linux/proc_fs.h>
> +#include <linux/seq_file.h>
>  #include <linux/ctype.h>
>  #include <linux/blkdev.h>
>  #include <linux/workqueue.h>
> @@ -147,41 +148,34 @@ device_initcall(start_task);
>  static void (*led_func_ptr) (unsigned char) __read_mostly;
>  
>  #ifdef CONFIG_PROC_FS
> -static int led_proc_read(char *page, char **start, off_t off, int count, 
> -	int *eof, void *data)
> +static int led_proc_show(struct seq_file *m, void *v)
>  {
> -	char *out = page;
> -	int len;
> -
> -	switch ((long)data)
> +	switch ((long)m->private)
>  	{
>  	case LED_NOLCD:
> -		out += sprintf(out, "Heartbeat: %d\n", led_heartbeat);
> -		out += sprintf(out, "Disk IO: %d\n", led_diskio);
> -		out += sprintf(out, "LAN Rx/Tx: %d\n", led_lanrxtx);
> +		seq_printf(m, "Heartbeat: %d\n", led_heartbeat);
> +		seq_printf(m, "Disk IO: %d\n", led_diskio);
> +		seq_printf(m, "LAN Rx/Tx: %d\n", led_lanrxtx);
>  		break;
>  	case LED_HASLCD:
> -		out += sprintf(out, "%s\n", lcd_text);
> +		seq_printf(m, "%s\n", lcd_text);
>  		break;
>  	default:
> -		*eof = 1;
>  		return 0;
>  	}
> +	return 0;
> +}
>  
> -	len = out - page - off;
> -	if (len < count) {
> -		*eof = 1;
> -		if (len <= 0) return 0;
> -	} else {
> -		len = count;
> -	}
> -	*start = page + off;
> -	return len;
> +static int led_proc_open(struct inode *inode, struct file *file)
> +{
> +	return single_open(file, led_proc_show, PDE(inode)->data);
>  }
>  
> -static int led_proc_write(struct file *file, const char *buf, 
> -	unsigned long count, void *data)
> +
> +static ssize_t led_proc_write(struct file *file, const char *buf,
> +	size_t count, loff_t *pos)
>  {
> +	void *data = PDE(file->f_path.dentry->d_inode)->data;
>  	char *cur, lbuf[count + 1];
>  	int d;
>  
> @@ -234,6 +228,15 @@ parse_error:
>  	return -EINVAL;
>  }
>  
> +static const struct file_operations led_proc_fops = {
> +	.owner		= THIS_MODULE,
> +	.open		= led_proc_open,
> +	.read		= seq_read,
> +	.llseek		= seq_lseek,
> +	.release	= single_release,
> +	.write		= led_proc_write,
> +};
> +
>  static int __init led_create_procfs(void)
>  {
>  	struct proc_dir_entry *proc_pdc_root = NULL;
> @@ -243,19 +246,15 @@ static int __init led_create_procfs(void)
>  
>  	proc_pdc_root = proc_mkdir("pdc", 0);
>  	if (!proc_pdc_root) return -1;
> -	ent = create_proc_entry("led", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
> +	ent = proc_create_data("led", S_IRUGO|S_IWUSR, proc_pdc_root,
> +				&led_proc_fops, (void *)LED_NOLCD); /* LED */

Documentation/filesystems/seq_file.txt says to use create_proc_entry().
I couldn't find any documentation on proc_create_data().
Is this really the preferred API?

I reviewed the code and it looks fine to me otherwise.

Reviewed-by: Grant Grundler <grundler@parisc-linux.org>

cheers,
grant

>  	if (!ent) return -1;
> -	ent->data = (void *)LED_NOLCD; /* LED */
> -	ent->read_proc = led_proc_read;
> -	ent->write_proc = led_proc_write;
>  
>  	if (led_type == LED_HASLCD)
>  	{
> -		ent = create_proc_entry("lcd", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
> +		ent = proc_create_data("lcd", S_IRUGO|S_IWUSR, proc_pdc_root,
> +					&led_proc_fops, (void *)LED_HASLCD); /* LCD */
>  		if (!ent) return -1;
> -		ent->data = (void *)LED_HASLCD; /* LCD */
> -		ent->read_proc = led_proc_read;
> -		ent->write_proc = led_proc_write;
>  	}
>  
>  	return 0;
> --
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From: Alexey Dobriyan <adobriyan@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: convert /proc/pdc/{lcd,led} to seq_file
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On Fri, Nov 27, 2009 at 11:13:54PM -0700, Grant Grundler wrote:
> On Fri, Nov 27, 2009 at 09:51:12AM +0300, Alexey Dobriyan wrote:
> > Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
> 
> No commit comment?

No, subject says it's all.

> > -	ent = create_proc_entry("led", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
> > +	ent = proc_create_data("led", S_IRUGO|S_IWUSR, proc_pdc_root,
> > +				&led_proc_fops, (void *)LED_NOLCD); /* LED */
> 
> Documentation/filesystems/seq_file.txt says to use create_proc_entry().
> I couldn't find any documentation on proc_create_data().
> Is this really the preferred API?

Yes, it's slightly less racy than create_proc_entry().

create_proc_entry() is going to be removed in fact.
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From - Thu Nov 08 21:05:14 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: convert /proc/pdc/{lcd,led} to seq_file
Date: Sat, 28 Nov 2009 08:45:08 -0600
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On Sat, 2009-11-28 at 12:25 +0300, Alexey Dobriyan wrote:
> On Fri, Nov 27, 2009 at 11:13:54PM -0700, Grant Grundler wrote:
> > On Fri, Nov 27, 2009 at 09:51:12AM +0300, Alexey Dobriyan wrote:
> > > Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
> > 
> > No commit comment?
> 
> No, subject says it's all.

He means rationale ... the output of the files you are altering is fixed
size and atomic, so we don't need seq_file for fear of running off the
fixed buffer and the data is reasonably fast changing, so anyone looking
to seek within the file because they can't read the data in one go isn't
going to get sensible results.  Given that, why bother with the
conversion?

James


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From - Thu Nov 08 21:05:14 2018
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From: Kyle McMartin <kyle@hera.kernel.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix unwind with recent gcc versions
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From: Helge Deller <deller@gmx.de>

kernel unwinding is broken with gcc >= 4.x. Part of the problem is, that
binutils seems sensible where the unwind information is stored.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
---
 arch/parisc/kernel/unwind.c      |    2 +-
 arch/parisc/kernel/vmlinux.lds.S |    6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 69dad5a..a36799e 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -28,7 +28,7 @@
 #define dbg(x...)
 #endif
 
-#define KERNEL_START (KERNEL_BINARY_TEXT_START - 0x1000)
+#define KERNEL_START (KERNEL_BINARY_TEXT_START)
 
 extern struct unwind_table_entry __start___unwind[];
 extern struct unwind_table_entry __stop___unwind[];
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index fda4baa..9dab4a4 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -78,9 +78,6 @@ SECTIONS
 	 */
 	. = ALIGN(PAGE_SIZE);
 	data_start = .;
-	EXCEPTION_TABLE(16)

From - Thu Nov 08 21:05:14 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [PATCH] parisc: convert /proc/pdc/{lcd,led} to seq_file
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On Sat, Nov 28, 2009 at 12:25:09PM +0300, Alexey Dobriyan wrote:
> On Fri, Nov 27, 2009 at 11:13:54PM -0700, Grant Grundler wrote:
> > On Fri, Nov 27, 2009 at 09:51:12AM +0300, Alexey Dobriyan wrote:
> > > Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
> > 
> > No commit comment?
> 
> No, subject says it's all.

The subject line says what the patch does, not why you wrote the patch.
Your comments below are an example of what I was looking for.

> 
> > > -	ent = create_proc_entry("led", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
> > > +	ent = proc_create_data("led", S_IRUGO|S_IWUSR, proc_pdc_root,
> > > +				&led_proc_fops, (void *)LED_NOLCD); /* LED */
> > 
> > Documentation/filesystems/seq_file.txt says to use create_proc_entry().
> > I couldn't find any documentation on proc_create_data().
> > Is this really the preferred API?
> 
> Yes, it's slightly less racy than create_proc_entry().
> create_proc_entry() is going to be removed in fact.

Ok. Please add a sentence about which race you are worried about.
This isn't to discuss the race - it's just informative to explain
why there is a plan to replace the API. I'm willing to go along with
that.

Are you removing create_proc_entry() ? Is this patch part of a grand plan?
(All good things to include in a commit comment)

Also updating Documentation/filesystems/seq_file.txt would be very
helpful given you understand why proc_create_data() should replace
create_proc_entry().

thanks!
grant
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From - Thu Nov 08 21:05:14 2018
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On Sat, 28 Nov 2009, Kyle McMartin wrote:
>
> From: Helge Deller <deller@gmx.de>
> 
> kernel unwinding is broken with gcc >= 4.x. Part of the problem is, that
> binutils seems sensible where the unwind information is stored.

The commentary doesn't seem to make much sense to me. Do you mean 
"sensitive" rather than "sensible"? And is it an actual binutils bug, or 
what?

Also, are the PARISC people 100% sure that you really want unwinding in 
the first place? We got rid of it as being terminally broken on x86, 
because tools and asm always got it wrong, and special things like irq 
frames etc continually broke it in the most annoying ways possible (ie 
WARN_ON() statements became fatal oopses due to unwind errors etc).

Having a tentative and unreliable stack trace is generally better than 
a totally broken one.

		Linus
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Subject: Re: Changes to fcntl.h and F_* numbers?
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On Fri, Nov 27, 2009 at 5:20 PM, Helge Deller <deller@gmx.de> wrote:
> Hi Carlos,
>
> FWIW, Stephen's patch has been applied to mainline (2.6.32-rc8) in the
> meantime...

Thanks Helge. Could you do some sleuthing for me? Were the F_SETOWN_EX
and F_GETOWN_EX ever in any released kernel?

Cheers,
Carlos.
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From - Thu Nov 08 21:05:15 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Changes to fcntl.h and F_* numbers?
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
	Kyle McMartin <kyle@mcmartin.ca>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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On 11/29/2009 07:17 PM, Carlos O'Donell wrote:
> On Fri, Nov 27, 2009 at 5:20 PM, Helge Deller<deller@gmx.de>  wrote:
>> Hi Carlos,
>>
>> FWIW, Stephen's patch has been applied to mainline (2.6.32-rc8) in the
>> meantime...
>
> Thanks Helge. Could you do some sleuthing for me? Were the F_SETOWN_EX
> and F_GETOWN_EX ever in any released kernel?

Those were added by this commit:

commit ba0a6c9f6fceed11c6a99e8326f0477fe383e6b5
Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date:   Wed Sep 23 15:57:03 2009 -0700
     fcntl: add F_[SG]ETOWN_EX

Linux kernel 2.6.31 was tagged:
Date:   Wed Sep 9 15:13:59 2009 -0700
(according to the git-log of the top Makefile)

So I don't think they were ever in any released kernel.

Helge
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From - Thu Nov 08 21:05:15 2018
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From: Helge Deller <deller@gmx.de>
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On 11/29/2009 06:34 PM, Linus Torvalds wrote:
> On Sat, 28 Nov 2009, Kyle McMartin wrote:
>>
>> From: Helge Deller<deller@gmx.de>
>>
>> kernel unwinding is broken with gcc>= 4.x. Part of the problem is, that
>> binutils seems sensible where the unwind information is stored.
>
> The commentary doesn't seem to make much sense to me. Do you mean
> "sensitive" rather than "sensible"? And is it an actual binutils bug, or
> what?

Yes, sorry, I meant "sensitive".

It's a combination of lots of things. Newer gcc, with newer binutils and
all latest changes to our parisc arch/parisc/kernel/vmlinux.lds.S linker
script, e.g.:

commit ab635e7d499f23a5791e69e2ebbc9a40c9983d89
Author: Tim Abbott <tabbott@ksplice.com>
Date:   Thu Sep 24 10:36:18 2009 -0400
     parisc: Remove useless altinstructions code copied from x86.

commit 57a8e1161e1a944823542138e61dd8f38fd9b9e8
Author: Tim Abbott <tabbott@ksplice.com>
Date:   Thu Sep 24 10:36:17 2009 -0400
     parisc: Clean up linker script using new linker script macros.

commit 023bf6f1b8bf58dc4da7f0dc1cf4787b0d5297c1
Author: Tejun Heo <tj@kernel.org>
Date:   Thu Jul 9 11:27:40 2009 +0900
     linker script: unify usage of discard definition

commit 405d967dc70002991f8fc35c20e0d3cbc7614f63
Author: Tejun Heo <tj@kernel.org>
Date:   Wed Jun 24 15:13:38 2009 +0900
     linker script: throw away .discard section

All those patches (which are basically OK), triggers a new
layout location for our unwind tables and as such broke
our existing unwinding.

My patch basically just gets it right again.

> Also, are the PARISC people 100% sure that you really want unwinding in
> the first place?

No, but it's the only and best thing we have available right now.
There have been discussions about other options like dwarf and similiar though:
http://marc.info/?l=linux-parisc&m=124694174008515&w=2

>We got rid of it as being terminally broken on x86,
> because tools and asm always got it wrong, and special things like irq
> frames etc continually broke it in the most annoying ways possible (ie
> WARN_ON() statements became fatal oopses due to unwind errors etc).
> Having a tentative and unreliable stack trace is generally better than
> a totally broken one.

Yes we had oopses as well. Current code tries hard to not unwind outside
of the kernel text segment. This fixed most issues and in the past weeks
I didn't faced any other problems with unwinding (which doesn't mean there
aren't any other problems left).

Helge
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On Sun, Nov 29, 2009 at 2:55 PM, Helge Deller <deller@gmx.de> wrote:
> Those were added by this commit:
>
> commit ba0a6c9f6fceed11c6a99e8326f0477fe383e6b5
> Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Date: =A0 Wed Sep 23 15:57:03 2009 -0700
> =A0 =A0fcntl: add F_[SG]ETOWN_EX
>
> Linux kernel 2.6.31 was tagged:
> Date: =A0 Wed Sep 9 15:13:59 2009 -0700
> (according to the git-log of the top Makefile)
>
> So I don't think they were ever in any released kernel.

Thanks Helge. I'll make sure glibc gets adjusted according to the new n=
umbers.

Cheers,
Carlos.
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> Since the sections are empty anyway, I don't see any reason
> why those section names need to be exported via sysfs.
> 
> Let's just drop them, which works for parisc (and should for any
> other architecture too).

That seems fine to me.


Thanks,
Roland
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On Sun, Nov 29, 2009 at 08:55:41PM +0100, Helge Deller wrote:
> Those were added by this commit:
>
> commit ba0a6c9f6fceed11c6a99e8326f0477fe383e6b5
> Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Date:   Wed Sep 23 15:57:03 2009 -0700
>     fcntl: add F_[SG]ETOWN_EX
>
> Linux kernel 2.6.31 was tagged:
> Date:   Wed Sep 9 15:13:59 2009 -0700
> (according to the git-log of the top Makefile)
>

Helge is quite correct... I pointed this out in a previous email...
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On Sun, 2009-11-29 at 09:34 -0800, Linus Torvalds wrote:
> Also, are the PARISC people 100% sure that you really want unwinding in 
> the first place? We got rid of it as being terminally broken on x86, 
> because tools and asm always got it wrong, and special things like irq 
> frames etc continually broke it in the most annoying ways possible (ie 
> WARN_ON() statements became fatal oopses due to unwind errors etc).
> 
> Having a tentative and unreliable stack trace is generally better than 
> a totally broken one.

Being a risc system, we don't have a lot of choice.  returns on parisc
are conventionally jump through register two, so without unwind
information we have no idea where in the stack frame (or even if)
they're stored.  Our other problem is that our stack frames have a
predefined size which often doesn't get fully filled, so the stack gets
gummed up with a lot of cruft from previous calls; thus even if we just
trawl it for relevant addresses, we get a lot of bogus information.

Look at it this way:  our unwind information has to be correct otherwise
the debugger would continually fail on the platform, so the tool chain
has an incentive to get it right.

James


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On Sat, 28 Nov 2009 22:17:52 -0700
Grant Grundler <grundler@parisc-linux.org> wrote:

> > Yes, it's slightly less racy than create_proc_entry().
> > create_proc_entry() is going to be removed in fact.
> 
> Ok. Please add a sentence about which race you are worried about.
> This isn't to discuss the race - it's just informative to explain
> why there is a plan to replace the API. I'm willing to go along with
> that.
> 
> Are you removing create_proc_entry() ? Is this patch part of a grand plan?
> (All good things to include in a commit comment)
> 
> Also updating Documentation/filesystems/seq_file.txt would be very
> helpful given you understand why proc_create_data() should replace
> create_proc_entry().

yeah.  I didn't even know that this was the reason and I've been
applying the patches like crazy.  Heaven knows what a random developer
of a remote subsystem is supposed to make of such a patch.  Probably he
just assumes that someone else knows what's going on.

Alexey, please, don't do this.


Please send me some boilerplate text which I can paste into

thinkpad_acpi-convert-to-seq_file.patch
asus_acpi-convert-to-seq_file.patch
toshiba_acpi-convert-to-seq_file.patch
arm-convert-proc-cpu-aligment-to-seq_file.patch
proc_fops-convert-drivers-isdn-to-seq_file.patch
proc_fops-convert-drivers-isdn-to-seq_file-fix.patch
mpt-fusion-convert-to-seq_file.patch
pnpbios-convert-to-seq_file.patch
uml-convert-to-seq_file-proc_fops.patch
alpha-convert-srm-code-to-seq_file.patch
parisc-convert-proc-pdc-lcdled-to-seq_file.patch
via-pmu-convert-to-proc_fops-seq_file.patch
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From - Thu Nov 08 21:05:15 2018
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Subject: [PATCH] modules: don't export section names of empty sections via
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[PATCH] modules: don't export section names of empty sections via sysfs

On the parisc architecture we face for each and every loaded kernel module
this kernel "badness warning":
  sysfs: cannot create duplicate filename '/module/ac97_bus/sections/.text'
  Badness at fs/sysfs/dir.c:487

Reason for that is, that on parisc all kernel modules do have multiple
.text sections due to the usage of the -ffunction-sections compiler flag
which is needed to reach all jump targets on this platform.

An objdump on such a kernel module gives:
Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .note.gnu.build-id 00000024  00000000  00000000  00000034  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA            
  1 .text         00000000  00000000  00000000  00000058  2**0     
                  CONTENTS, ALLOC, LOAD, READONLY, CODE            
  2 .text.ac97_bus_match 0000001c  00000000  00000000  00000058  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE              
  3 .text         00000000  00000000  00000000  000000d4  2**0       
                  CONTENTS, ALLOC, LOAD, READONLY, CODE              
...
Since the .text sections are empty (size of 0 bytes) and won't be
loaded by the kernel module loader anyway, I don't see a reason
why such sections need to be listed under 
/sys/module/<module_name>/sections/<section_name> either.

The attached patch does solve this issue by not exporting section
names which are empty.

This fixes bugzilla http://bugzilla.kernel.org/show_bug.cgi?id=14703

Signed-off-by: Helge Deller <deller@gmx.de>
CC: rusty@rustcorp.com.au
CC: akpm@linux-foundation.org
CC: James.Bottomley@HansenPartnership.com
CC: roland@redhat.com
CC: dave@hiauly1.hia.nrc.ca

diff --git a/kernel/module.c b/kernel/module.c
index 8b7d880..5842a71 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1187,7 +1187,8 @@ static void add_sect_attrs(struct module *mod, unsigned int nsect,
 
 	/* Count loaded sections and allocate structures */
 	for (i = 0; i < nsect; i++)
-		if (sechdrs[i].sh_flags & SHF_ALLOC)
+		if (sechdrs[i].sh_flags & SHF_ALLOC
+		    && sechdrs[i].sh_size)
 			nloaded++;
 	size[0] = ALIGN(sizeof(*sect_attrs)
 			+ nloaded * sizeof(sect_attrs->attrs[0]),
@@ -1207,6 +1208,8 @@ static void add_sect_attrs(struct module *mod, unsigned int nsect,
 	for (i = 0; i < nsect; i++) {
 		if (! (sechdrs[i].sh_flags & SHF_ALLOC))
 			continue;
+		if (!sechdrs[i].sh_size)
+			continue;
 		sattr->address = sechdrs[i].sh_addr;
 		sattr->name = kstrdup(secstrings + sechdrs[i].sh_name,
 					GFP_KERNEL);
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From - Thu Nov 08 21:05:15 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: make hangs reading pipe
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This is the second time make has hung reading a pipe.  It occurred
at exactly the same place in both cases (end of gcc bootstrap).

System is 32-bit UP kernel running on c3750.  I have seen it now with
2.6.30.9 and 2.6.31.6.  I have to think this is libc6 related.
Current version is 2.10.1-7.  I haven't seen the problem with 64-bit
kernel.

I also have noticed that logins via ssh and su take a long time after
the system runs for awhile.  They are quite right after boot.

Here's some random data that I collected from the first hang:

dave@hiauly6:~/gnu/gcc/objdir$ /usr/bin/gdb /usr/bin/make 4506
GNU gdb (GDB) 7.0-debian
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "hppa-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/make...(no debugging symbols found)...done.
Attaching to program: /usr/bin/make, process 4506
Reading symbols from /lib/librt.so.1...Reading symbols from /usr/lib/debug/lib/librt-2.10.1.so...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/librt.so.1
Reading symbols from /lib/libc.so.6...Reading symbols from /usr/lib/debug/lib/libc-2.10.1.so...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/libpthread.so.0...Reading symbols from /usr/lib/debug/lib/libpthread-2.10.1.so...done.
[Thread debugging using libthread_db enabled]
(no debugging symbols found)...done.
Loaded symbols for /lib/libpthread.so.0
Reading symbols from /lib/ld.so.1...Reading symbols from /usr/lib/debug/lib/ld-2.10.1.so...done.
(no debugging symbols found)...done.
Loaded symbols for /lib/ld.so.1
0x4098607c in read () from /lib/libc.so.6
(gdb) bt
#0  0x4098607c in read () from /lib/libc.so.6
#1  0x0001eb6c in ?? ()
#2  0x0001ec4c in ?? ()
#3  0x00021af0 in main ()
(gdb) disass 0x4098606c 0x4098608c
Dump of assembler code from 0x4098606c to 0x4098608c:
0x4098606c <read+24>:   cmpib,<>,n 0,ret0,0x409860a0 <read+76>
0x40986070 <read+28>:   copy r19,r3
0x40986074 <read+32>:   be,l 100(sr2,r0),sr0,r31
0x40986078 <read+36>:   ldi 3,r20
0x4098607c <read+40>:   ldi -1000,r1
0x40986080 <read+44>:   cmpb,>>=,n r1,ret0,0x40986100 <read+172>
0x40986084 <read+48>:   copy r3,r19
0x40986088 <read+52>:   b,l 0x409a7c38,rp
End of assembler dump.

dave@hiauly6:/proc/4506$ cat status
Name:   make
State:  S (sleeping)
Tgid:   4506
Pid:    4506
PPid:   2836
TracerPid:      0
Uid:    1002    1002    1002    1002
Gid:    1002    1002    1002    1002
FDSize: 256
Groups: 0 4 100 119 1002 1003 
VmPeak:     3460 kB
VmSize:     3460 kB
VmLck:         0 kB
VmHWM:      2260 kB
VmRSS:      2240 kB
VmData:     1500 kB
VmStk:        88 kB
VmExe:       160 kB
VmLib:      1652 kB
VmPTE:        20 kB
Threads:        1
SigQ:   0/16382
SigPnd: 0000000000000000
ShdPnd: 0000000000000000
SigBlk: 0000000000000000
SigIgn: 0000000000000001
SigCgt: 000000330002c006
CapInh: 0000000000000000
CapPrm: 0000000000000000
CapEff: 0000000000000000
CapBnd: fffffffffffffeff
voluntary_ctxt_switches:        27
nonvoluntary_ctxt_switches:     17

dave@hiauly6:/proc/4506/fdinfo$ cat 3
pos:    0
flags:  00

dave@hiauly6:/proc/4506/fd$ ls -l
total 0
l-wx------ 1 dave dave 64 Nov 29 11:00 0 -> /dev/null
l-wx------ 1 dave dave 64 Nov 29 11:00 1 -> /home/dave/gnu/gcc-4.5/objdir/build.log
l-wx------ 1 dave dave 64 Nov 29 11:00 2 -> /home/dave/gnu/gcc-4.5/objdir/build.log
lr-x------ 1 dave dave 64 Nov 29 11:00 3 -> pipe:[23677]
lr-x------ 1 dave dave 64 Nov 29 11:00 6 -> /home/dave/gnu/gcc-4.5/gcc-4.5
lr-x------ 1 dave dave 64 Nov 29 11:00 7 -> pipe:[23678]

Processes 23677 and 23678 are non existant.

In the current hang, I see:

dave@hiauly6:/proc/23324/fd$ ls -l
total 0
l-wx------ 1 dave dave 64 Dec  2 19:49 0 -> /dev/null
l-wx------ 1 dave dave 64 Dec  2 19:49 1 -> /home/dave/gnu/gcc-4.5/objdir/build.log
l-wx------ 1 dave dave 64 Dec  2 19:49 2 -> /home/dave/gnu/gcc-4.5/objdir/build.log
lr-x------ 1 dave dave 64 Dec  2 19:49 3 -> pipe:[1383769]
lr-x------ 1 dave dave 64 Dec  2 19:49 6 -> /home/dave/gnu/gcc-4.5/gcc-4.5
lr-x------ 1 dave dave 64 Dec  2 19:49 7 -> pipe:[1383770]

Not sure what the pipe numbers mean...

The current hang could be debugged more if anybody has further ideas.
Any thoughts?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:16 2018
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From: Rusty Russell <rusty@rustcorp.com.au>
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Subject: Re: [PATCH] modules: don't export section names of empty sections via sysfs
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On Thu, 3 Dec 2009 09:59:15 am Helge Deller wrote:
> [PATCH] modules: don't export section names of empty sections via sysfs

Thanks, applied.

Ah, I see Linus snuck this in before the release.  Excellent.
Rusty.
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From - Thu Nov 08 21:05:16 2018
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On Thu, 2009-12-03 at 17:50 +1030, Rusty Russell wrote:
> On Thu, 3 Dec 2009 09:59:15 am Helge Deller wrote:
> > [PATCH] modules: don't export section names of empty sections via sysfs
> 
> Thanks, applied.
> 
> Ah, I see Linus snuck this in before the release.  Excellent.

That's great.  The next step is probably to find out why the toolchain
is doing this ... generating zero length allocated segments seems to be
somewhat deviant behaviour ...

James


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Subject: Re: [PATCH] modules: don't export section names of empty sections
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On Thu, Dec 03, 2009 at 05:50:41PM +1030, Rusty Russell wrote:
> On Thu, 3 Dec 2009 09:59:15 am Helge Deller wrote:
> > [PATCH] modules: don't export section names of empty sections via sysfs
> 
> Thanks, applied.
> 
> Ah, I see Linus snuck this in before the release.  Excellent.
> Rusty.
> 

Thanks Rusty, Helge!

cheers, Kyle
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On Thu, Nov 26, 2009 at 02:39:17PM +0200, Boaz Harrosh wrote:
> On 11/25/2009 10:23 PM, J. Bruce Fields wrote:
> > On Wed, Nov 25, 2009 at 03:10:11PM -0500, J. Bruce Fields wrote:
> >> On Tue, Nov 24, 2009 at 08:03:12PM +0200, Boaz Harrosh wrote:
> >>>
> >>> In what history where these ever needed? Well not
> >>> any more.
> >>
> >> Applied, thanks.--b.
> > 
> > Um, I said that before I actually tried to compile it....  OK, dropping
> > for now (assuming I'm missing some earlier patch).
> > 
> > --b.
> > 
> 
> OK, I didn't realize it but, yes I have these on top of the previous 6
> so it makes sense.
> 
> I have posted the previous 6 rebased on your new current tree, have you seen
> it? All the patches are the same but [5/6] which has a "version 3". Do I need
> to re post?

Apologies, yes, would you mind reposting?

--b.
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Subject: Re: make hangs reading pipe
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On Wed, Dec 2, 2009 at 8:14 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> (gdb) bt
> #0 =A00x4098607c in read () from /lib/libc.so.6
> #1 =A00x0001eb6c in ?? ()
> #2 =A00x0001ec4c in ?? ()
> #3 =A00x00021af0 in main ()
> (gdb) disass 0x4098606c 0x4098608c
> Dump of assembler code from 0x4098606c to 0x4098608c:
> 0x4098606c <read+24>: =A0 cmpib,<>,n 0,ret0,0x409860a0 <read+76>
> 0x40986070 <read+28>: =A0 copy r19,r3
> 0x40986074 <read+32>: =A0 be,l 100(sr2,r0),sr0,r31
> 0x40986078 <read+36>: =A0 ldi 3,r20

Those last two instructions are the "read" syscall. The process is
just waiting for the kernel to deliver data, but it never came. The PC
points to 0x4098607c, which is where the process will *return* after
the read syscall completes.

When you see a "be,l 100" it's a syscall, when you see a "be,l b0"
it's a light-weight-syscall.

> 0x4098607c <read+40>: =A0 ldi -1000,r1
> 0x40986080 <read+44>: =A0 cmpb,>>=3D,n r1,ret0,0x40986100 <read+172>
> 0x40986084 <read+48>: =A0 copy r3,r19
> 0x40986088 <read+52>: =A0 b,l 0x409a7c38,rp
> End of assembler dump.

You need to use sysrq-t to determine why the other side of the pipe is =
stuck.

> dave@hiauly6:/proc/4506$ cat status
> Name: =A0 make
> State: =A0S (sleeping)

Sleeping is normal, it's blocked waiting for the read to complete.

> lr-x------ 1 dave dave 64 Nov 29 11:00 3 -> pipe:[23677]
> lr-x------ 1 dave dave 64 Nov 29 11:00 7 -> pipe:[23678]
>
> Processes 23677 and 23678 are non existant.

Those are the kernel inode numbers for the anonymous pipe. You need to
look for the other pid which is writing to the pipe of the same inode.

If the process on the other side of the pipe dies shouldn't the fd's
get closed and then make's read on the pipe should return with partial
data followed by EOF?

> In the current hang, I see:
>
> dave@hiauly6:/proc/23324/fd$ ls -l
> total 0
> l-wx------ 1 dave dave 64 Dec =A02 19:49 0 -> /dev/null
> l-wx------ 1 dave dave 64 Dec =A02 19:49 1 -> /home/dave/gnu/gcc-4.5/=
objdir/build.log
> l-wx------ 1 dave dave 64 Dec =A02 19:49 2 -> /home/dave/gnu/gcc-4.5/=
objdir/build.log
> lr-x------ 1 dave dave 64 Dec =A02 19:49 3 -> pipe:[1383769]
> lr-x------ 1 dave dave 64 Dec =A02 19:49 6 -> /home/dave/gnu/gcc-4.5/=
gcc-4.5
> lr-x------ 1 dave dave 64 Dec =A02 19:49 7 -> pipe:[1383770]
>
> Not sure what the pipe numbers mean...

Each anonymous pipe gets an inode number in the pipefs filesystem,
which you can't see or mount.

> The current hang could be debugged more if anybody has further ideas.
> Any thoughts?

Yes, it's not make's fault, it's waiting for the read to complete.
What is the process on the other side of the pipe?

Cheers,
Carlos.
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From - Thu Nov 08 21:05:16 2018
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To: carlos@systemhalted.org (Carlos O'Donell)
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> > The current hang could be debugged more if anybody has further ideas.
> > Any thoughts?
> 
> Yes, it's not make's fault, it's waiting for the read to complete.
> What is the process on the other side of the pipe?

Thanks for explaining the inode numbers.

The process on the other side is /bin/sh:

root@hiauly6:/proc/14971# ps -ef|grep 14971
dave     14971     1  0 Dec01 ?        00:00:00 /bin/sh

It's fd's are:

root@hiauly6:/proc/14971/fd# ls -l
total 0
lr-x------ 1 dave dave 64 Dec  3 21:20 0 -> pipe:[1401596]
l-wx------ 1 dave dave 64 Dec  3 21:20 1 -> pipe:[1401597]
l-wx------ 1 dave dave 64 Dec  3 21:20 2 -> /home/dave/gnu/gcc-4.5/objdir/build.log
lr-x------ 1 dave dave 64 Dec  3 21:20 3 -> pipe:[1383769]
l-wx------ 1 dave dave 64 Dec  3 21:20 4 -> pipe:[1383769]
lr-x------ 1 dave dave 64 Dec  3 21:20 5 -> /usr/include/sys/stat.h
lr-x------ 1 dave dave 64 Dec  3 21:20 6 -> pipe:[1401596]
l-wx------ 1 dave dave 64 Dec  3 21:20 7 -> pipe:[1401596]
l-wx------ 1 dave dave 64 Dec  3 21:20 9 -> pipe:[1401597]

It's stuck reading 0:

root@hiauly6:/proc/14971# strace -p14971
Process 14971 attached - interrupt to quit
read(0, 

The only process using inode 1401596 is 14971.  As seen above, it
seems to be talking to itself.  That probably would explain the hang.

It's backtrace is:

0x4058607c in read () from /lib/libc.so.6
(gdb) bt
#0  0x4058607c in read () from /lib/libc.so.6
#1  0x0009051c in zread ()
#2  0x000618ac in buffered_getchar ()
#3  0x0002c71c in ?? ()
#4  0x0002ef74 in ?? ()
#5  0x00032ebc in yyparse ()
#6  0x00029e30 in parse_command ()
#7  0x00029f30 in read_command ()
#8  0x0002a0d0 in reader_loop ()
#9  0x000292b8 in main ()

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:16 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: make hangs reading pipe
Date: Thu, 3 Dec 2009 22:10:16 -0500
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On Thu, Dec 3, 2009 at 9:47 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> Yes, it's not make's fault, it's waiting for the read to complete.
>> What is the process on the other side of the pipe?
>
> Thanks for explaining the inode numbers.
>
> The process on the other side is /bin/sh:
>
> root@hiauly6:/proc/14971# ps -ef|grep 14971
> dave =A0 =A0 14971 =A0 =A0 1 =A00 Dec01 ? =A0 =A0 =A0 =A000:00:00 /bi=
n/sh
>
> It's fd's are:
>
> root@hiauly6:/proc/14971/fd# ls -l
> total 0
> lr-x------ 1 dave dave 64 Dec =A03 21:20 0 -> pipe:[1401596]
> l-wx------ 1 dave dave 64 Dec =A03 21:20 1 -> pipe:[1401597]
> l-wx------ 1 dave dave 64 Dec =A03 21:20 2 -> /home/dave/gnu/gcc-4.5/=
objdir/build.log
> lr-x------ 1 dave dave 64 Dec =A03 21:20 3 -> pipe:[1383769]
> l-wx------ 1 dave dave 64 Dec =A03 21:20 4 -> pipe:[1383769]
> lr-x------ 1 dave dave 64 Dec =A03 21:20 5 -> /usr/include/sys/stat.h
> lr-x------ 1 dave dave 64 Dec =A03 21:20 6 -> pipe:[1401596]
> l-wx------ 1 dave dave 64 Dec =A03 21:20 7 -> pipe:[1401596]
> l-wx------ 1 dave dave 64 Dec =A03 21:20 9 -> pipe:[1401597]
>
> It's stuck reading 0:

It's stuck reading standard input, which happens to be attached to anot=
her pipe.

> root@hiauly6:/proc/14971# strace -p14971
> Process 14971 attached - interrupt to quit
> read(0,
>
> The only process using inode 1401596 is 14971. =A0As seen above, it
> seems to be talking to itself. =A0That probably would explain the han=
g.

Odd, is this normal for bash e.g. stdin -> pipe <- other fd.

> It's backtrace is:
>
> 0x4058607c in read () from /lib/libc.so.6
> (gdb) bt
> #0 =A00x4058607c in read () from /lib/libc.so.6
> #1 =A00x0009051c in zread ()
> #2 =A00x000618ac in buffered_getchar ()
> #3 =A00x0002c71c in ?? ()
> #4 =A00x0002ef74 in ?? ()
> #5 =A00x00032ebc in yyparse ()
> #6 =A00x00029e30 in parse_command ()
> #7 =A00x00029f30 in read_command ()
> #8 =A00x0002a0d0 in reader_loop ()
> #9 =A00x000292b8 in main ()

I don't know what to say at this point, it might be a bug in bash, or
a bug in pipefs for hppa where the same inode is given out incorrectly
under certain circumstances.

What does the normal behaviour look like, what is fd 6 being used for?
You should be able to use strace to observe the correct operation.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:16 2018
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From: Domenico Andreoli <cavokz@gmail.com>
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Subject: my usual problem with 64bit kernel
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--FCuugMFkClbJLl1L
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

hi,

  today i checked the support of 64bit on my j5600. latest kernel
that successfully (and still) run it was 2.6.22, latest one i tried
(and still fails) is a fresh 2.6.32.

i have not any specific knowlwdge of the beast, only a pile of manuals
that i will use to try to understand what's wrong.

only, if anybody has a hint to point me in the right direction i would
save a lot of time.  i attached the kernel boot log and the output of
ser pim firmware command.

best regards,
Domenico

-----[ Domenico Andreoli, aka cavok
 --[ http://www.dandreoli.com/gpgkey.asc
   ---[ 3A0F 2F80 F79C 678A 8936  4FEE 0677 9033 A20E BC50

--FCuugMFkClbJLl1L
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="parisc64-kernel.log"

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).        
Command line for kernel: 'root=/dev/sda3 panic=60 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2                                                              
Selected ramdisk: /initrd.img from partition 2
ELF64 executable                              
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 6139904 mediaptr 0x1000
Segment 1 load 00714660 size 819360 mediaptr 0x5dc660
Loading ramdisk 8720546 bytes @ 3f79d000...          
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is  
a common symptom -- search the FAQ and mailing list at parisc-linux.org
                                                                       
[    0.000000] Linux version 2.6.32 (cavok@ska) (gcc version 4.3.4 (GCC) ) #1 SMP Fri Dec 4 17:33:58 CET 2009
[    0.000000] unwind_init: start = 0x405d8000, end = 0x4060b7c0, entries = 13180
[    0.000000] WARNING: Out of order unwind entry! 00000000405da120 and 00000000405da130
[    0.000000] WARNING: Out of order unwind entry! 00000000405da130 and 00000000405da140
[    0.000000] FP[0] enabled: Rev 1 Model 16
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: System Map.
[    0.000000] model 00005d10 00000491 00000000 00000002 77b406fc 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000300
[    0.000000] CPUID vers 17 rev 10 (0x0000022a)
[    0.000000] capabilities 0x3
[    0.000000] model 9000/785/J5600
[    0.000000] Total Memory: 3840 MB
[    0.000000] LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
[    0.000000] PERCPU: Embedded 10 pages/cpu @0000000044338000 s9984 r8192 d22784 u65536
[    0.000000] pcpu-alloc: s9984 r8192 d22784 u65536 alloc=16*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 969600
[    0.000000] Kernel command line: root=/dev/sda3 panic=60 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.000000] Memory: 3856640k/3932160k available (4209k kernel code, 74972k reserved, 1735k data, 276k init)
[    0.000000] virtual kernel memory layout:
[    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
[    0.000000]     memory  : 0x0000000040000000 - 0x0000000130000000   (3840 MB)
[    0.000000]       .init : 0x0000000040798000 - 0x00000000407dd000   ( 276 kB)
[    0.000000]       .data : 0x000000004051c470 - 0x00000000406ce2a0   (1735 kB)
[    0.000000]       .text : 0x0000000040100000 - 0x000000004051c470   (4209 kB)
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS:128
[    0.000000] Console: colour dummy device 160x64
[    0.060000] Calibrating delay loop... 1101.00 BogoMIPS (lpj=5505024)
[    0.390000] Security Framework initialized
[    0.450000] Mount-cache hash table entries: 256
[    0.510000] Brought up 1 CPUs
[    0.550000] NET: Registered protocol family 16
[    0.610000] EISA bus registered
[    0.650000] Searching for devices...
[    0.960000] Found devices:
[    0.990000] 1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
[    1.100000] 2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
[    1.210000] 3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
[    1.310000] 4. Elroy PCI Bridge at 0xfffffffffed34000 [10/2] { 13, 0x0, 0x782, 0x0000a }
[    1.420000] 5. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
[    1.530000] 6. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
[    1.630000] 7. Forte W+ 2w at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5d1, 0x00004 }
[    1.730000] 8. Forte W+ 2w at 0xfffffffffffa2000 [34] { 0, 0x0, 0x5d1, 0x00004 }
[    1.830000] 9. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09e, 0x00009 }
[    2.040000] Releasing cpu 1 now, hpa=fffffffffffa2000

--FCuugMFkClbJLl1L
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="parisc64-ser-pim.log"

Service Menu: Enter command > pim hpmc

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp = 
  Fri Dec  4 16:43:56 GMT 2009    (20:09:12:04:16:43:56)

HPMC Chassis Codes = 2cbf0  25008  2cbf4  2cbfc  

General Registers 0 - 31
00-03   0000000000000000  0000000040795e40  00000000401170b4  0000000000000001
04-07   000000004076c640  0000000044349008  00000000406ef6b8  000000012f8a8140
08-11   0000000040675d1c  000000004062ddc0  0000000040675d68  00000000401210dc
12-15   0000000000000000  00000000406bb4b0  0000000000000001  00000000f0400004
16-19   000000004062e100  00000000407dbe80  00000000406bb4a8  0000000f32f63ff3
20-23   00000000000016f9  000000004062ddc0  0000000000000002  0000000000002710
24-27   00000000ffffffff  000000000800000e  0000000040648200  000000004076c640
28-31   0000000000004cd6  000000012f848e20  000000012f848af0  000000000000d7a0

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  00000000000000c0  000000000000003e
12-15   0000000000000000  0000000000000000  0000000000103000  c000000000000000
16-19   0000000f32ff3d89  0000000000000000  0000000040117158  00000000020008bc
20-23   0000000000000000  0000000000000000  000000ff0804f90f  0000000000000000
24-27   00000000006d1000  00000000006d1000  0000000000044021  00000000f0412000
28-31   0000000055555555  0000000055555555  000000012f848000  0000000011111111
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

<Press any key to continue (q to quit)> 

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x000000004011715c
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030000d
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffffa0000
System Requestor Address     = 0xfffffffffffa2000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000001f00000000  0000001f00000000  0000001f00000000
04-07   0000000000000000  5555555555555555  5555555555555555  5555555555555555
08-11   5555555555555555  5555555555555555  5555555555555555  5555555555555555
12-15   5555555555555555  5555555555555555  5555555555555555  5555555555555555
16-19   5555555555555555  5555555555555555  5555555555555555  5555555555555555
20-23   5555555555555555  5555555555555555  0000000000000000  0000000000000000
24-27   0000000000005000  0000000000000000  5555555555555555  5555555555555555
28-31   5555555555555555  5555555555555555  5555555555555555  5555555555555555

<Press any key to continue (q to quit)> 


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81841000000000
Available Memory             = 0x0000000100000000
CPU Diagnose Register 2      = 0x0300000000802004
CPU Status Register 0        = 0x3440c20000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x4820000000000000
Read Short LOG               = 0xc18040fffee003fd
ERROR_STATUS                 = 0x0000000000000010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0x0ce0107fd89705f0
RUN_DATA_LOW                 = 0x73d73e81d2f91bf0
RUN_CTRL                     = 0x0000021c00001418
RUN_ADDR                     = 0xc13ff0f0f0039530
System Responder Path        = 0x00ffffffffffffff


HPMC PIM Analysis Information:

Timestamp = 
  Fri Dec  4 16:43:56 GMT 2009    (20:09:12:04:16:43:56)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

CPU 0 observed a Broadcast Error on the Runway Bus.


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not log
any additional information about the HPMC.

<Press any key to continue (q to quit)> 

Memory Error Log Information:

Timestamp = 
  Fri Dec  4 16:43:56 GMT 2009    (20:09:12:04:16:43:56)


'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:

   No memory errors logged


I/O Module Error Log Information:

Timestamp = 
  Fri Dec  4 16:43:56 GMT 2009    (20:09:12:04:16:43:56)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    0x00000000   0x2e0cc009   0x00000000fed34048
   3    ----------   0x3e0cc009   ------------------
   4    0x00000000   0x4e0cc009   0x00000000fed38048
   5    ----------   0x5e0cc009   ------------------
   6    0x00000000   0x6e0cc009   0x00000000fed3c048
   7    ----------   0x7e0cc009   ------------------
Service Menu: Enter command >
 

--FCuugMFkClbJLl1L--
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From - Thu Nov 08 21:05:16 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: my usual problem with 64bit kernel
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On 12/04/2009 06:28 PM, Domenico Andreoli wrote:
>    today i checked the support of 64bit on my j5600. latest kernel
> that successfully (and still) run it was 2.6.22, latest one i tried
> (and still fails) is a fresh 2.6.32.
>
> i have not any specific knowlwdge of the beast, only a pile of manuals
> that i will use to try to understand what's wrong.
>
> only, if anybody has a hint to point me in the right direction i would
> save a lot of time.  i attached the kernel boot log and the output of
> ser pim firmware command.

Could you try the original 2.6.30 and/or 2.6.31 smp kernels from
debian unstable as well?
I just want to make sure, that you have more or less a correct kernel
configuration setup (.config)....

Helge
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From: Alexey Dobriyan <adobriyan@gmail.com>
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Subject: Re: [PATCH] parisc: convert /proc/pdc/{lcd,led} to seq_file
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On Tue, Dec 01, 2009 at 02:07:46PM -0800, Andrew Morton wrote:
> On Sat, 28 Nov 2009 22:17:52 -0700
> Grant Grundler <grundler@parisc-linux.org> wrote:
> 
> > > Yes, it's slightly less racy than create_proc_entry().
> > > create_proc_entry() is going to be removed in fact.
> > 
> > Ok. Please add a sentence about which race you are worried about.
> > This isn't to discuss the race - it's just informative to explain
> > why there is a plan to replace the API. I'm willing to go along with
> > that.
> > 
> > Are you removing create_proc_entry() ? Is this patch part of a grand plan?
> > (All good things to include in a commit comment)
> > 
> > Also updating Documentation/filesystems/seq_file.txt would be very
> > helpful given you understand why proc_create_data() should replace
> > create_proc_entry().
> 
> yeah.  I didn't even know that this was the reason and I've been
> applying the patches like crazy.  Heaven knows what a random developer
> of a remote subsystem is supposed to make of such a patch.  Probably he
> just assumes that someone else knows what's going on.
> 
> Alexey, please, don't do this.
> 
> 
> Please send me some boilerplate text which I can paste into

Here it is:

Convert code away from ->read_proc/->write_proc interfaces.
Switch to proc_create()/proc_create_data() which make addition of
proc entries reliable wrt NULL ->proc_fops, NULL ->data and so on.

Problem with ->read_proc et al is described here
commit 786d7e1612f0b0adb6046f19b906609e4fe8b1ba
"Fix rmmod/read/write races in /proc entries"
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From - Thu Nov 08 21:05:16 2018
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From: Domenico Andreoli <cavokz@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: my usual problem with 64bit kernel
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On Fri, Dec 04, 2009 at 07:50:10PM +0100, Helge Deller wrote:
> On 12/04/2009 06:28 PM, Domenico Andreoli wrote:
> >   today i checked the support of 64bit on my j5600. latest kernel
> >that successfully (and still) run it was 2.6.22, latest one i tried
> >(and still fails) is a fresh 2.6.32.
> >
> >i have not any specific knowlwdge of the beast, only a pile of manuals
> >that i will use to try to understand what's wrong.
> >
> >only, if anybody has a hint to point me in the right direction i would
> >save a lot of time.  i attached the kernel boot log and the output of
> >ser pim firmware command.
> 
> Could you try the original 2.6.30 and/or 2.6.31 smp kernels from
> debian unstable as well?

just tried linux-image-2.6.31-1-parisc64-smp 2.6.31-2 and, as many
other debian ones i tried in the meanwhile, it failed in a different
way. indeed the machine boots with a single online CPU, which is the
behaviour i recall. boot log attached.

> I just want to make sure, that you have more or less a correct kernel
> configuration setup (.config)....

there is at least a configuration glitch which makes my kernel hang
and the debian one continue in degraded mode. i attached also the
configuration, just in case i forgot something important.

here is the code (from arch/parisc/kernel/smp.c) relevant to the traces
i'm getting. the firse trace "Releasing cpu..." is always there in the
log, last one "SMP: CPU:1 is stuck" is got only with the debian kernel
while with my kernel the machine halts in between and i have to pull
the plug.


	printk(KERN_INFO "Releasing cpu %d now, hpa=%lx\n", cpuid, p->hpa);

	/*
	** This gets PDC to release the CPU from a very tight loop.
	**
	** From the PA-RISC 2.0 Firmware Architecture Reference Specification:
	** "The MEM_RENDEZ vector specifies the location of OS_RENDEZ which 
	** is executed after receiving the rendezvous signal (an interrupt to 
	** EIR{0}). MEM_RENDEZ is valid only when it is nonzero and the 
	** contents of memory are valid."
	*/
	gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, p->hpa);
	mb();

	/* 
	 * OK, wait a bit for that CPU to finish staggering about. 
	 * Slave will set a bit when it reaches smp_cpu_init().
	 * Once the "monarch CPU" sees the bit change, it can move on.
	 */
	for (timeout = 0; timeout < 10000; timeout++) {
		if(cpu_online(cpuid)) {
			/* Which implies Slave has started up */
			cpu_now_booting = 0;
			smp_init_current_idle_task = NULL;
			goto alive ;
		}
		udelay(100);
		barrier();
	}

	put_task_struct(idle);
	idle = NULL;

	printk(KERN_CRIT "SMP: CPU:%d is stuck.\n", cpuid);


best regards,
Domenico

-----[ Domenico Andreoli, aka cavok
 --[ http://www.dandreoli.com/gpgkey.asc
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--SLDf9lqlvOQaIe6s
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="parisc64-kernel-2.6.31.log"

Command line for kernel: 'root=/dev/sda3 panic=60 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
Selected ramdisk: /initrd.img from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4878336 mediaptr 0x1000
Segment 1 load 00634000 size 470240 mediaptr 0x4a8000
Segment 2 load 006a8000 size 296896 mediaptr 0x51b000
Loading ramdisk 9111902 bytes @ 3f73d000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.31-1-parisc64-smp (Debian 2.6.31-2) (ben@decadent.org.uk) (gcc version 4.3.4 (GCC) ) #1 SMP Mon Nov 16 14:09:50 UTC 2009
[    0.000000] unwind_init: start = 0x404d0164, end = 0x404fd404, entries = 11562
[    0.000000] WARNING: Out of order unwind entry! 00000000404d20e4 and 00000000404d20f4
[    0.000000] WARNING: Out of order unwind entry! 00000000404d20f4 and 00000000404d2104
[    0.000000] FP[0] enabled: Rev 1 Model 16
[    0.000000] The 64-bit Kernel has started...
[    0.000000] console [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: System Map.
[    0.000000] model 00005d10 00000491 00000000 00000002 77b406fc 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000300
[    0.000000] CPUID vers 17 rev 10 (0x0000022a)
[    0.000000] capabilities 0x3
[    0.000000] model 9000/785/J5600
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 MB
[    0.000000]  1) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 MB
[    0.000000] Total Memory: 4096 MB
[    0.000000] initrd: 7f73d000-7ffed95e
[    0.000000] initrd: reserving 3f73d000-3ffed95e (mem_max 100000000)
[    0.000000] LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 2 zonelists in Zone order, mobility grouping on.  Total pages: 1034240
[    0.000000] Kernel command line: root=/dev/sda3 panic=60 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 12, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.000000] Memory: 4106288k/4194304k available (3220k kernel code, 87044k reserved, 1495k data, 292k init)
[    0.000000] virtual kernel memory layout:
[    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
[    0.000000]     memory  : 0x0000000040000000 - 0x0000001140000000   (69632 MB)
[    0.000000]       .init : 0x00000000406a8000 - 0x00000000406f1000   ( 292 kB)
[    0.000000]       .data : 0x0000000040425198 - 0x000000004059b000   (1495 kB)
[    0.000000]       .text : 0x0000000040100000 - 0x0000000040425198   (3220 kB)
[    0.000000] NR_IRQS:128
[    0.000000] Console: colour dummy device 160x64
[    0.060000] Calibrating delay loop... 1101.82 BogoMIPS (lpj=2203648)
[    0.244000] Security Framework initialized
[    0.296000] SELinux:  Disabled at boot.
[    0.348000] Mount-cache hash table entries: 256
[    0.408000] Initializing cgroup subsys ns
[    0.460000] Initializing cgroup subsys cpuacct
[    0.520000] Initializing cgroup subsys devices
[    0.576000] Initializing cgroup subsys freezer
[    0.636000] Initializing cgroup subsys net_cls
[    0.696000] Brought up 1 CPUs
[    0.736000] regulator: core version 0.5
[    0.788000] NET: Registered protocol family 16
[    0.844000] EISA bus registered
[    0.888000] Searching for devices...
[    1.192000] Found devices:
[    1.228000] 1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
[    1.336000] 2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
[    1.444000] 3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
[    1.548000] 4. Elroy PCI Bridge at 0xfffffffffed34000 [10/2] { 13, 0x0, 0x782, 0x0000a }
[    1.656000] 5. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
[    1.764000] 6. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
[    1.868000] 7. Forte W+ 2w at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5d1, 0x00004 }
[    1.964000] 8. Forte W+ 2w at 0xfffffffffffa2000 [34] { 0, 0x0, 0x5d1, 0x00004 }
[    2.064000] 9. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09e, 0x00009 }
[    2.156000] Enabling regular chassis codes support v0.05
[    2.348000] Releasing cpu 1 now, hpa=fffffffffffa2000
[    3.416000] SMP: CPU:1 is stuck.
[    3.456000] CPU(s): 2 x PA8600 (PCX-W+) at 552.000000 MHz
[    3.528000] Setting cache flush threshold to 100000 (1 CPUs online)
[    3.728000] SBA found Astro 2.1 at 0xfffffffffed00000
[    3.796000] Elroy version TR2.1 (0x2) found at 0xfffffffffed30000
[    3.880000] PCI: Enabled native mode for NS87415 (pif=0x8f)
[    3.956000] Elroy version TR2.1 (0x2) found at 0xfffffffffed32000
[    4.040000] pci 0000:01:08.0: PME# supported from D0 D1 D2 D3hot
[    4.120000] pci 0000:01:08.0: PME# disabled
[    4.172000] pci 0000:01:05.0: BAR 1: no parent found for of device [0xfffffffff9000000-0xfffffffff9003fff]
[    4.300000] pci 0000:01:05.0: BAR 6: no parent found for of device [0xfffffffff9020000-0xfffffffff902ffff]
[    4.428000] pci 0000:01:08.0: BAR 1: no parent found for of device [0xfffffffff9004000-0xfffffffff900407f]
[    4.556000] pci 0000:01:08.0: BAR 6: no parent found for of device [0xfffffffff9020000-0xfffffffff903ffff]
[    4.684000] Elroy version TR2.1 (0x2) found at 0xfffffffffed34000
[    4.764000] pci 0000:02:02.0: PME# supported from D1 D2 D3hot D3cold
[    4.848000] pci 0000:02:02.0: PME# disabled
[    4.904000] pci 0000:02:03.0: PME# supported from D0 D1 D2 D3hot
[    4.980000] pci 0000:02:03.0: PME# disabled
[    5.044000] pci 0000:02:02.0: BAR 13: address space collision on of bridge [0x00-0xfff]
[    5.148000] pci 0000:02:02.0: BAR 14: no parent found for of bridge [0xf5100000-0xf51fffff]
[    5.260000] pci 0000:02:02.0: BAR 15: no parent found for of bridge [0xf0100000-0xf01fffff]
[    5.368000] pci 0000:02:02.0: BAR 16: no parent found for of bridge [0x0-0x0]
[    5.464000] pci 0000:03:08.0: BAR 0: no parent found for of device [0xfffffffff5107000-0xfffffffff5107fff]
[    5.588000] pci 0000:03:08.1: BAR 0: no parent found for of device [0xfffffffff5106000-0xfffffffff5106fff]
[    5.716000] pci 0000:03:09.0: BAR 0: no parent found for of device [0xfffffffff5105000-0xfffffffff5105fff]
[    5.844000] pci 0000:03:09.1: BAR 0: no parent found for of device [0xfffffffff5104000-0xfffffffff5104fff]
[    5.972000] pci 0000:03:0a.0: BAR 0: no parent found for of device [0xfffffffff5103000-0xfffffffff5103fff]
[    6.100000] pci 0000:03:0a.1: BAR 0: no parent found for of device [0xfffffffff5102000-0xfffffffff5102fff]
[    6.224000] pci 0000:03:0b.0: BAR 0: no parent found for of device [0xfffffffff5101000-0xfffffffff5101fff]
[    6.352000] pci 0000:03:0b.1: BAR 0: no parent found for of device [0xfffffffff5100000-0xfffffffff5100fff]
[    6.484000] pci 0000:02:03.0: BAR 13: address space collision on of bridge [0x00-0xfff]
[    6.592000] pci 0000:02:03.0: BAR 14: no parent found for of bridge [0xf5000000-0xf50fffff]
[    6.700000] pci 0000:02:03.0: BAR 15: no parent found for of bridge [0xf0100000-0xf01fffff]
[    6.812000] pci 0000:02:03.0: BAR 16: no parent found for of bridge [0x0-0x0]
[    6.904000] pci 0000:04:04.0: BAR 0: no parent found for of device [0xfffffffff5007000-0xfffffffff50073ff]
[    7.032000] pci 0000:04:04.1: BAR 0: no parent found for of device [0xfffffffff5006000-0xfffffffff500607f]
[    7.160000] pci 0000:04:05.0: BAR 0: no parent found for of device [0xfffffffff5005000-0xfffffffff50053ff]
[    7.284000] pci 0000:04:05.1: BAR 0: no parent found for of device [0xfffffffff5004000-0xfffffffff500407f]
[    7.412000] pci 0000:04:06.0: BAR 0: no parent found for of device [0xfffffffff5003000-0xfffffffff50033ff]
[    7.540000] pci 0000:04:06.1: BAR 0: no parent found for of device [0xfffffffff5002000-0xfffffffff500207f]
[    7.668000] pci 0000:04:07.0: BAR 0: no parent found for of device [0xfffffffff5001000-0xfffffffff50013ff]
[    7.792000] pci 0000:04:07.1: BAR 0: no parent found for of device [0xfffffffff5000000-0xfffffffff500007f]
[    7.920000] pci 0000:02:02.0: device not available because of BAR 13 [0x00-0xfff] collisions
[    8.032000] pci 0000:02:03.0: device not available because of BAR 13 [0x00-0xfff] collisions
[    8.144000] Elroy version TR2.1 (0x2) found at 0xfffffffffed38000
[    8.228000] Elroy version TR2.1 (0x2) found at 0xfffffffffed3c000
[    8.308000] iosapic: hpa not registered for 0000:06:07.0
[    8.388000] powersw: Soft power switch at 0xfffffff0f0400804 enabled.
[    8.476000] bio: create slab <bio-0> at 0
[    8.532000] NET: Registered protocol family 2
[    8.588000] IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
[    8.688000] TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
[    8.804000] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    8.896000] TCP: Hash tables configured (established 262144 bind 65536)
[    8.980000] TCP reno registered
[    9.024000] NET: Registered protocol family 1
[    9.080000] Unpacking initramfs...
[   10.004000] Freeing initrd memory: 8898k freed
[   10.068000] Enabling PDC chassis warnings support v0.05
[   10.136000] Performance monitoring counters enabled for Forte W+ 2w
[   10.216000] audit: initializing netlink socket (disabled)
[   10.288000] type=2000 audit(1260001051.288:1): initialized
[   10.364000] VFS: Disk quotas dquot_6.5.2
[   10.416000] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[   10.500000] msgmni has been set to 8039
[   10.552000] alg: No test for stdrng (krng)
[   10.608000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[   10.704000] io scheduler noop registered
[   10.756000] io scheduler anticipatory registered
[   10.816000] io scheduler deadline registered
[   10.872000] io scheduler cfq registered (default)
[   10.936000] SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 68) 
[   11.028000] SuperIO: Serial port 1 at 0x3f8
[   11.084000] SuperIO: Serial port 2 at 0x2f8
[   11.140000] SuperIO: Parallel port at 0x378
[   11.196000] SuperIO: Floppy controller at 0x3f0
[   11.256000] SuperIO: ACPI at 0x7e0
[   11.300000] SuperIO: USB regulator enabled
[   11.356000] PDC Stable Storage facility v0.30
[   11.724000] STI GSC/PCI core graphics driver Version 0.9a
[   11.796000] STI PCI graphic ROM found at fffffffff7000000 (2048 kB), fb at fffffffffa000000 (32 MB)
[   11.960000]     id 2fc1066b-9a02587, conforms to spec rev. 8.09
[   12.036000]     graphics card name: HPA4554A
[   12.092000] sticon: Initializing STI text console.
[   12.156000] Console: switching to colour STI console 160x64
[   12.364000] stifb: 'HPA4554A' (id: 0x2fc1066b) not supported.
[   12.444000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[   12.528000] serial8250: ttyS0 at I/O 0x3f8 (irq = 3) is a 16550A
[   12.604000] console handover: boot [ttyB0] -> real [ttyS0]
[   12.676000] serial8250: ttyS1 at I/O 0x2f8 (irq = 4) is a 16550A
[   12.752000] mice: PS/2 mouse device common for all mice
[   12.812000] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[   12.900000] TCP cubic registered
[   12.940000] NET: Registered protocol family 17
[   12.992000] registered taskstats version 1
[   13.044000] rtc-generic rtc-generic: setting system clock to 2009-12-05 08:17:34 UTC (1260001054)
[   13.152000] Freeing unused kernel memory: 292k freed

--SLDf9lqlvOQaIe6s
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="config-2.6.32"

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.32
# Fri Dec  4 17:02:54 2009
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_TIME_LOW_RES=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_IRQ_PER_CPU=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_TREE_PREEMPT_RCU is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=32
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=15
# CONFIG_GROUP_SCHED is not set
# CONFIG_CGROUPS is not set
# CONFIG_SYSFS_DEPRECATED_V2 is not set
# CONFIG_RELAY is not set
# CONFIG_NAMESPACES is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_EMBEDDED=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# CONFIG_PERF_COUNTERS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_USE_GENERIC_SMP_HELPERS=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_SLOW_WORK is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_HAVE_MLOCK=y
CONFIG_HAVE_MLOCKED_PAGE_BIT=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_COMPAT=y
CONFIG_NR_CPUS=2

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
CONFIG_ISA=y
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_PCI_LEGACY=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_PDC_CHASSIS is not set
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=m
# CONFIG_NET_IPGRE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=m
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
# CONFIG_IPV6_PRIVACY is not set
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_BEET is not set
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=m
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETLABEL is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_DEVTMPFS is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
# CONFIG_PNP is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=8192
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
CONFIG_SGI_IOC4=m
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_ISL29003 is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=y

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
# CONFIG_IDE_GD is not set
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_IDE_TASK_IOCTL is not set
# CONFIG_IDE_PROC_FS is not set

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8172 is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=y
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
CONFIG_RAID_ATTRS=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=y
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_LASI700 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_ZALON is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
# CONFIG_ATA is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
# CONFIG_MD_LINEAR is not set
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
# CONFIG_BLK_DEV_DM is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#

#
# You can enable one or both FireWire driver stacks.
#

#
# See the help texts for more information.
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=y
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
# CONFIG_PHYLIB is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_LASI_82596 is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
CONFIG_NET_VENDOR_3COM=y
# CONFIG_EL1 is not set
# CONFIG_EL2 is not set
# CONFIG_EL16 is not set
# CONFIG_EL3 is not set
CONFIG_VORTEX=y
# CONFIG_TYPHOON is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_DNET is not set
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
CONFIG_TULIP_NAPI=y
CONFIG_TULIP_NAPI_HW_MITIGATION=y
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
# CONFIG_NET_PCI is not set
# CONFIG_B44 is not set
# CONFIG_CS89x0 is not set
# CONFIG_KS8842 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_ATL2 is not set
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_GSCPS2 is not set
# CONFIG_HP_SDC is not set
# CONFIG_SERIO_PCIPS2 is not set
# CONFIG_SERIO_LIBPS2 is not set
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
# CONFIG_DEVKMEM is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=16
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
# CONFIG_SERIAL_8250_MANY_PORTS is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MUX is not set
CONFIG_PDC_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
# CONFIG_I2C_COMPAT is not set
# CONFIG_I2C_CHARDEV is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_SIMTEC is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Graphics adapter I2C/DDC channel drivers
#
# CONFIG_I2C_VOODOO3 is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_PCA_ISA is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_STUB is not set

#
# Miscellaneous I2C Chip support
#
# CONFIG_DS1682 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_I2C_DEBUG_CHIP is not set
# CONFIG_SPI is not set

#
# PPS support
#
# CONFIG_PPS is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_AB3100_CORE is not set
# CONFIG_REGULATOR is not set
CONFIG_MEDIA_SUPPORT=y

#
# Multimedia core support
#
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_V4L2_COMMON=y
# CONFIG_VIDEO_ALLOW_V4L1 is not set
CONFIG_VIDEO_V4L1_COMPAT=y
# CONFIG_DVB_CORE is not set
CONFIG_VIDEO_MEDIA=y

#
# Multimedia drivers
#
# CONFIG_MEDIA_ATTACH is not set
CONFIG_MEDIA_TUNER=y
# CONFIG_MEDIA_TUNER_CUSTOMISE is not set
CONFIG_MEDIA_TUNER_SIMPLE=y
CONFIG_MEDIA_TUNER_TDA8290=y
CONFIG_MEDIA_TUNER_TDA9887=y
CONFIG_MEDIA_TUNER_TEA5761=y
CONFIG_MEDIA_TUNER_TEA5767=y
CONFIG_MEDIA_TUNER_MT20XX=y
CONFIG_MEDIA_TUNER_XC2028=y
CONFIG_MEDIA_TUNER_XC5000=y
CONFIG_MEDIA_TUNER_MC44S803=y
CONFIG_VIDEO_V4L2=y
CONFIG_VIDEOBUF_GEN=m
CONFIG_VIDEOBUF_DMA_SG=m
CONFIG_VIDEOBUF_VMALLOC=m
CONFIG_VIDEO_BTCX=m
CONFIG_VIDEO_IR=m
CONFIG_VIDEO_TVEEPROM=m
CONFIG_VIDEO_TUNER=m
CONFIG_VIDEO_CAPTURE_DRIVERS=y
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
CONFIG_VIDEO_HELPER_CHIPS_AUTO=y
CONFIG_VIDEO_IR_I2C=m
CONFIG_VIDEO_TVAUDIO=m
CONFIG_VIDEO_TDA7432=m
CONFIG_VIDEO_MSP3400=m
CONFIG_VIDEO_SAA6588=m
CONFIG_VIDEO_VIVI=m
CONFIG_VIDEO_BT848=m
# CONFIG_VIDEO_SAA5246A is not set
# CONFIG_VIDEO_SAA5249 is not set
# CONFIG_VIDEO_ZORAN is not set
# CONFIG_VIDEO_SAA7134 is not set
# CONFIG_VIDEO_HEXIUM_ORION is not set
# CONFIG_VIDEO_HEXIUM_GEMINI is not set
# CONFIG_VIDEO_CX88 is not set
# CONFIG_VIDEO_IVTV is not set
# CONFIG_VIDEO_CAFE_CCIC is not set
# CONFIG_SOC_CAMERA is not set
# CONFIG_V4L_USB_DRIVERS is not set
# CONFIG_RADIO_ADAPTERS is not set
# CONFIG_DAB is not set

#
# Graphics support
#
# CONFIG_AGP is not set
# CONFIG_VGA_ARB is not set
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
# CONFIG_STI_CONSOLE is not set
CONFIG_SOUND=y
# CONFIG_SOUND_OSS_CORE is not set
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
# CONFIG_SND_SEQUENCER is not set
# CONFIG_SND_MIXER_OSS is not set
# CONFIG_SND_PCM_OSS is not set
# CONFIG_SND_DYNAMIC_MINORS is not set
# CONFIG_SND_SUPPORT_OLD_API is not set
# CONFIG_SND_VERBOSE_PROCFS is not set
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_AC97_CODEC=y
# CONFIG_SND_DRIVERS is not set
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=y
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
# CONFIG_SND_USB is not set
# CONFIG_SND_GSC is not set
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=y
# CONFIG_HID_SUPPORT is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
# CONFIG_USB_DEVICEFS is not set
# CONFIG_USB_DEVICE_CLASS is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
# CONFIG_USB_EHCI_HCD is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_WHCI_HCD is not set
# CONFIG_USB_HWA_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_BERRY_CHARGE is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_VST is not set
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set

#
# TI VLYNQ
#
# CONFIG_STAGING is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
# CONFIG_EXT3_FS_XATTR is not set
# CONFIG_EXT4_FS is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
# CONFIG_DNOTIFY is not set
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=m
# CONFIG_CUSE is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=m
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=m
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set

#
# Kernel hacking
#
CONFIG_PRINTK_TIME=y
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=0
CONFIG_MAGIC_SYSRQ=y
# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_PAGE_POISONING is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_RODATA is not set

#
# Security options
#
# CONFIG_KEYS is not set
CONFIG_SECURITY=y
# CONFIG_SECURITYFS is not set
CONFIG_SECURITY_NETWORK=y
# CONFIG_SECURITY_PATH is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
# CONFIG_SECURITY_ROOTPLUG is not set
# CONFIG_SECURITY_TOMOYO is not set
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=m
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=m
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_LAST_BIT=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
CONFIG_CRC_T10DIF=y
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=m
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y

--SLDf9lqlvOQaIe6s--
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From - Thu Nov 08 21:05:17 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Scheduling parent to run before vforked child calls exec or exit...
Date: Sun, 6 Dec 2009 12:56:57 -0500
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To: Kyle McMartin <kyle@mcmartin.ca>,
	linux-parisc <linux-parisc@vger.kernel.org>
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Kyle,

On Linux when a parent process calls vfork, the child process must run
without interruption by the parent until it executes exit or one of
the exec family functions. The parent process must be suspended until
the child calls exit or one of the execve family of functions.

While debugging an emacs failure I was able to reliable cause a
situation where the parent process was not suspended and the following
happened:

* Parent vfork's child
* Child starts.
* Parent is erroneously scheduled and calls close.
* Child attempts an ioctl on a file and sets errno to ENOTTY.
* Parent is scheduled again and checks the errno for close, which has
been clobbered by the child, and reports a failure.
* Parent kills child and exits with error ENOTTY.

Strictly according to POSIX the child should not have attempted an
ioctl, but on linux we expect the parent to be suspended and never see
an inconsistent memory state.

An strace of the parent process shows:
~~~
vfork(Process 24156 attached (waiting for parent)
Process 24156 resumed (parent 24155 ready)
)                                 = 24156
[pid 24156] close(4 <unfinished ...>
[pid 24155] close(5 <unfinished ...>
[pid 24156] <... close resumed> )       = 0
[pid 24155] <... close resumed> )       = 0
[pid 24155] close(3)                    = 0
[pid 24155] read(4,  <unfinished ...>
[pid 24156] setsid()                    = 24156
[pid 24156] setpgid(0, 0)               = -1 EPERM (Operation not permitted)
~~~
This indicates to me that 24155 and 24156 are being scheduled
concurrently, along with the failure that is only possible due to
interleaved execution. The child got to run a close(), and so did the
parent, the parent even started a read() before it was blocked and the
child continued.

This type of scheduling error could cause serious problems randomly in
every process that calls vfork. The more a child does before execve
the larger the window for the parent to be clobbered by the child.

How does the generic kernel infrastructure determine not to schedule
the parent of a vfork?

I've been reading through our arch/parisc/kernel/process.c and
kernel/sched.c without any success yet.

A quick hack to convince me that this is the situation would help. I'm
running your 2.6.32-rc6.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:17 2018
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X-Mozilla-Keys:                                                                                 
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: vfork test case.
Date: Sun, 6 Dec 2009 16:19:13 -0500
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To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
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	Kyle McMartin <kyle@mcmartin.ca>,
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Kyle, James,

I have constructed a vfork test case which shows some of the problems
I have using vfork reliably. This fails every time on my PA8700 system
running 2.6.32-rc6. It appears as though r28 (ret0) in the parent is
being corrupted.

The intent of the testcase is to do the following:
(a) vfork
(b) Launch "ls -l" in the vfork'd child.
(c) Print some information in the parent.

~~~ vfork.c
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>

int main (void)
{
  pid_t child;
  char *cmd[] = { "ls", "-l", (char *)0 };
  char *env[] = { "HOME=/tmp", (char *)0 };

  child = vfork();

  if (child == 0)
    {
      execve("/bin/ls", cmd, env);
    }
  else
    {
      printf("child != 0\n");
    }

  printf("child is 0x%x\n", (unsigned int)child);

  return 0;
}
~~~
Compile this test case twice:
gcc -O1 -g -o vfork-O1 vfork.c
gcc -O0 -g -o vfork-O0 vfork.c

When run on x86, the following are the results:
~~~ vfork-O1
child != 0
child is 0x34e3
total 4824848
-rw-r--r--  1 carlos carlos      25135 Sep  2 10:41
"${BuildArtifactFileName}.map"
... [snip]
~~~
~~~ vfork-O0
child != 0
child is 0x3515
total 4824880
-rw-r--r--  1 carlos carlos      25135 Sep  2 10:41
"${BuildArtifactFileName}.map"
~~~

This x86 runs are correct.

However, on hppa compiling with gcc version 4.3.4 (Debian 4.3.4-6) I
get the following:
~~~ vfork-O1
./vfork-O1
child is 0x40552aac
carlos@firin:~/fsrc$ total 284
drwxr-xr-x  8 carlos carlos  4096 Jul 14  2005 binutils-old-work
... [snip]
~~~

The return from vfork is corrupted in the parent.

This gets worse at -O0.

~~~ vfork-O0
child is 0x405551a0
Illegal instruction
carlos@firin:~/fsrc$ total 284
drwxr-xr-x  8 carlos carlos  4096 Jul 14  2005 binutils-old-work
... [snip file list]
~~~
The kernel says:
vfork-O0 (pid 16313): Illegal instruction (code 8) at 000000004054ec77

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  000000ff0006ff0f 00000000c06be968 000000004054ec70 00000000405551a4
r04-07  0000000040552aac 0000000000011b8a 0000000040553aac 00000000000f8c48
r08-11  00000000000f8a48 0000000000000000 00000000000c0000 00000000000f5808
r12-15  00000000000e8404 00000000000e8408 00000000ffffffff 0000000000000000
r16-19  0000000000000000 00000000000e6c40 00000000000e3fbc 00000000401f07c0
r20-23  0000000000000000 0000000040001900 00000000401e65f4 0000000000000000
r24-27  fffffffffffffff5 0000000000000000 00000000c06be42c 0000000000011b50
r28-31  0000000000000000 0000000000000000 0000000040552aac 000000004043d053
sr00-03  00000000053b5800 0000000000000000 0000000000000000 00000000053b5800
sr04-07  00000000053b5800 00000000053b5800 00000000053b5800 00000000053b5800

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  0000000040197fac 00000000405628cc 000000004060b9a0 4040000000000000
fr08-11  00000000401fd7ac 0000000000000000 000000009f81ebb8 000000009f8403e0
fr12-15  0000000000000002 000000009f81ebb0 000000009f81ebc0 000000004060b9a0
fr16-19  0000000000000002 000000009f80eac0 0000000040552b48 00000000f000022c
fr20-23  0000000040657140 00000000404e32f8 0000000000000700 00001c8c00000000
fr24-27  0000000000000000 000000004011c8ac 0000000040652ca0 fffffffffffff000
fr28-31  0000000000000000 ffffffffffffff9c 00000000401d4a68 0000000000000000

IASQ: 00000000053b5800 00000000053b5800 IAOQ: 000000004054ec77 000000004054ec7b
 IIR: 0015e5b6    ISR: 0000000000000000  IOR: 0000000000000000
 CPU:        0   CR30: 00000000458a8000 CR31: ffffffffffffffff
 ORIG_R28: 0000000000000000
 IAOQ[0]: 000000004054ec77
 IAOQ[1]: 000000004054ec7b
 RP(r2): 000000004054ec70
~~~

However, when running the -O1 version under ptrace, it works:
~~~
strace -o strace.log -ff ./vfork-O1
child != 0
child is 0x40b7
total 340
drwxr-xr-x  8 carlos carlos  4096 Jul 14  2005 binutils-old-work
... [snip]
~~~

This indicates to me that the kernel is corrupting the parent process
after vfork, and the testcase shows it. I have reviewed the assembly
generated by the compiler and I can't show that anything is wrong.

To remove the C library from the loop I attach a complete vfork
implementation as used by glibc.

You can compile the test case using:
gcc -O1 -g -o vfork-O1 vfork.c pt-vfork.s

This will call the vfork in pt-vfork.s and allow you to adjust the
instructions stream up to and including removing the vfork system call
e.g. ble 0x100(%sr2,%r0).

For example I use "iitlbp %r0,(%sr0, %r0)" to force a fault in either
the parent or the child.

Please note that this pt-vfork.s isn't exactly as used in glibc, I
have expanded the return sequence for both child and parent so you can
cause a fault in one the other or both independently.

In summary:
* Test case works on x86.
* Test case fails on hppa.
* Test case works on hppa under strace.

What are we doing wrong and where is the bug?

Cheers,
Carlos.

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From: Domenico Andreoli <cavokz@gmail.com>
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Subject: can't find a register in class 'R1_REGS' while reloading 'asm'
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--fdj2RfSjLxBAspz7
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

hi,

  i get the following error while building a 2.6.32 32bit kernel.
enabling CONFIG_DEBUG_SPINLOCK makes it go away. building a 64bit
kernel succeeds regardless the setting of CONFIG_DEBUG_SPINLOCK.

is anybody able to reproduce it? configuration is attached.

  CC      kernel/signal.o
  kernel/signal.c: In function 'copy_siginfo_to_user':
  kernel/signal.c:2145: warning: cast from pointer to integer of different size
  kernel/signal.c:2145: warning: cast from pointer to integer of different size
  kernel/signal.c:2152: warning: cast from pointer to integer of different size
  kernel/signal.c:2152: warning: cast from pointer to integer of different size
  kernel/signal.c:2168: warning: cast from pointer to integer of different size
  kernel/signal.c:2168: warning: cast from pointer to integer of different size
  kernel/signal.c: In function 'do_sigaltstack':
  kernel/signal.c:2489: warning: cast from pointer to integer of different size
  kernel/signal.c:2489: warning: cast from pointer to integer of different size
  kernel/signal.c: In function 'get_signal_to_deliver':
  /home/cavok/devel/kernel/linux-2.6.git/arch/parisc/include/asm/spinlock.h:25: error: can't find a register in class 'R1_REGS' while reloading 'asm'
  /home/cavok/devel/kernel/linux-2.6.git/arch/parisc/include/asm/spinlock.h:25: error: 'asm' operand has impossible constraints
  make[1]: *** [kernel/signal.o] Error 1
  make: *** [kernel] Error 2

cheers,
Domenico

-----[ Domenico Andreoli, aka cavok
 --[ http://www.dandreoli.com/gpgkey.asc
   ---[ 3A0F 2F80 F79C 678A 8936  4FEE 0677 9033 A20E BC50

--fdj2RfSjLxBAspz7
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="config-2.6.32-broken-spinlock-asm"

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.32
# Mon Dec  7 22:08:34 2009
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_TIME_LOW_RES=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_IRQ_PER_CPU=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_TREE_PREEMPT_RCU is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=32
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=15
# CONFIG_GROUP_SCHED is not set
# CONFIG_CGROUPS is not set
# CONFIG_SYSFS_DEPRECATED_V2 is not set
# CONFIG_RELAY is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# CONFIG_PERF_COUNTERS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_USE_GENERIC_SMP_HELPERS=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_SLOW_WORK is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
# CONFIG_LBDAF is not set
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_AS is not set
CONFIG_IOSCHED_DEADLINE=y
# CONFIG_IOSCHED_CFQ is not set
# CONFIG_DEFAULT_AS is not set
CONFIG_DEFAULT_DEADLINE=y
# CONFIG_DEFAULT_CFQ is not set
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="deadline"
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
# CONFIG_64BIT is not set
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_HAVE_MLOCK=y
CONFIG_HAVE_MLOCKED_PAGE_BIT=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
# CONFIG_HPUX is not set
CONFIG_NR_CPUS=2

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
# CONFIG_GSC is not set
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCI_LEGACY is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_PDC_CHASSIS is not set
CONFIG_PDC_CHASSIS_WARN=y
# CONFIG_PDC_STABLE is not set

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=m
# CONFIG_NET_IPGRE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=m
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
# CONFIG_IPV6_PRIVACY is not set
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_BEET is not set
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=m
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETLABEL is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_DEVTMPFS is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=8192
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
CONFIG_SGI_IOC4=m
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_ISL29003 is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=y

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
# CONFIG_IDE_GD is not set
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_IDE_TASK_IOCTL is not set
# CONFIG_IDE_PROC_FS is not set

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8172 is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=y
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
CONFIG_RAID_ATTRS=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=y
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_NSP32 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
# CONFIG_ATA is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
# CONFIG_MD_LINEAR is not set
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
# CONFIG_BLK_DEV_DM is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#

#
# You can enable one or both FireWire driver stacks.
#

#
# See the help texts for more information.
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=y
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
# CONFIG_PHYLIB is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
CONFIG_NET_VENDOR_3COM=y
CONFIG_VORTEX=y
# CONFIG_TYPHOON is not set
# CONFIG_ETHOC is not set
# CONFIG_DNET is not set
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
CONFIG_TULIP_NAPI=y
CONFIG_TULIP_NAPI_HW_MITIGATION=y
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
# CONFIG_NET_PCI is not set
# CONFIG_B44 is not set
# CONFIG_KS8842 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_ATL2 is not set
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_PCIPS2 is not set
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
# CONFIG_DEVKMEM is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=16
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
# CONFIG_SERIAL_8250_MANY_PORTS is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
CONFIG_PDC_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
# CONFIG_I2C_COMPAT is not set
# CONFIG_I2C_CHARDEV is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_SIMTEC is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Graphics adapter I2C/DDC channel drivers
#
# CONFIG_I2C_VOODOO3 is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_STUB is not set

#
# Miscellaneous I2C Chip support
#
# CONFIG_DS1682 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_I2C_DEBUG_CHIP is not set
# CONFIG_SPI is not set

#
# PPS support
#
# CONFIG_PPS is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_AB3100_CORE is not set
# CONFIG_REGULATOR is not set
CONFIG_MEDIA_SUPPORT=y

#
# Multimedia core support
#
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_V4L2_COMMON=y
# CONFIG_VIDEO_ALLOW_V4L1 is not set
CONFIG_VIDEO_V4L1_COMPAT=y
# CONFIG_DVB_CORE is not set
CONFIG_VIDEO_MEDIA=y

#
# Multimedia drivers
#
# CONFIG_MEDIA_ATTACH is not set
CONFIG_MEDIA_TUNER=y
# CONFIG_MEDIA_TUNER_CUSTOMISE is not set
CONFIG_MEDIA_TUNER_SIMPLE=y
CONFIG_MEDIA_TUNER_TDA8290=y
CONFIG_MEDIA_TUNER_TDA9887=y
CONFIG_MEDIA_TUNER_TEA5761=y
CONFIG_MEDIA_TUNER_TEA5767=y
CONFIG_MEDIA_TUNER_MT20XX=y
CONFIG_MEDIA_TUNER_XC2028=y
CONFIG_MEDIA_TUNER_XC5000=y
CONFIG_MEDIA_TUNER_MC44S803=y
CONFIG_VIDEO_V4L2=y
CONFIG_VIDEOBUF_GEN=m
CONFIG_VIDEOBUF_DMA_SG=m
CONFIG_VIDEOBUF_VMALLOC=m
CONFIG_VIDEO_BTCX=m
CONFIG_VIDEO_IR=m
CONFIG_VIDEO_TVEEPROM=m
CONFIG_VIDEO_TUNER=m
CONFIG_VIDEO_CAPTURE_DRIVERS=y
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
CONFIG_VIDEO_HELPER_CHIPS_AUTO=y
CONFIG_VIDEO_IR_I2C=m
CONFIG_VIDEO_TVAUDIO=m
CONFIG_VIDEO_TDA7432=m
CONFIG_VIDEO_MSP3400=m
CONFIG_VIDEO_SAA6588=m
CONFIG_VIDEO_VIVI=m
CONFIG_VIDEO_BT848=m
# CONFIG_VIDEO_SAA5246A is not set
# CONFIG_VIDEO_SAA5249 is not set
# CONFIG_VIDEO_ZORAN is not set
# CONFIG_VIDEO_SAA7134 is not set
# CONFIG_VIDEO_HEXIUM_ORION is not set
# CONFIG_VIDEO_HEXIUM_GEMINI is not set
# CONFIG_VIDEO_CX88 is not set
# CONFIG_VIDEO_IVTV is not set
# CONFIG_VIDEO_CAFE_CCIC is not set
# CONFIG_SOC_CAMERA is not set
# CONFIG_V4L_USB_DRIVERS is not set
# CONFIG_RADIO_ADAPTERS is not set
# CONFIG_DAB is not set

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
# CONFIG_STI_CONSOLE is not set
CONFIG_SOUND=y
# CONFIG_SOUND_OSS_CORE is not set
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
# CONFIG_SND_SEQUENCER is not set
# CONFIG_SND_MIXER_OSS is not set
# CONFIG_SND_PCM_OSS is not set
# CONFIG_SND_DYNAMIC_MINORS is not set
# CONFIG_SND_SUPPORT_OLD_API is not set
# CONFIG_SND_VERBOSE_PROCFS is not set
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_AC97_CODEC=y
# CONFIG_SND_DRIVERS is not set
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=y
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
# CONFIG_SND_USB is not set
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=y
# CONFIG_HID_SUPPORT is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
# CONFIG_USB_DEVICEFS is not set
# CONFIG_USB_DEVICE_CLASS is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
# CONFIG_USB_EHCI_HCD is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_WHCI_HCD is not set
# CONFIG_USB_HWA_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_BERRY_CHARGE is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_VST is not set
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set

#
# TI VLYNQ
#
# CONFIG_STAGING is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
# CONFIG_EXT3_FS_XATTR is not set
# CONFIG_EXT4_FS is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
# CONFIG_XFS_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
# CONFIG_DNOTIFY is not set
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=m
# CONFIG_CUSE is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=m
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=m
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set

#
# Kernel hacking
#
CONFIG_PRINTK_TIME=y
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=0
CONFIG_MAGIC_SYSRQ=y
# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_PAGE_POISONING is not set
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_RODATA is not set

#
# Security options
#
# CONFIG_KEYS is not set
CONFIG_SECURITY=y
# CONFIG_SECURITYFS is not set
CONFIG_SECURITY_NETWORK=y
# CONFIG_SECURITY_PATH is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
# CONFIG_SECURITY_ROOTPLUG is not set
# CONFIG_SECURITY_TOMOYO is not set
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=m
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=m
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_LAST_BIT=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
CONFIG_CRC_T10DIF=y
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=m
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y
CONFIG_GENERIC_ATOMIC64=y

--fdj2RfSjLxBAspz7--
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Subject: Re: my usual problem with 64bit kernel
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On Sat, Dec 05, 2009 at 09:35:11AM +0100, Domenico Andreoli wrote:
> On Fri, Dec 04, 2009 at 07:50:10PM +0100, Helge Deller wrote:
> 
> > I just want to make sure, that you have more or less a correct kernel
> > configuration setup (.config)....
> 
> there is at least a configuration glitch which makes my kernel hang
> and the debian one continue in degraded mode. i attached also the
> configuration, just in case i forgot something important.

i found the configuration glitch, it is CONFIG_DEBUG_MUTEXES. if it is
set, 64bit hangs right after "Releasing cpu 1 now, hpa=...", otherwise
the 64bit boot continues with a "SMP: CPU:1 is stuck."

BTW, i found my previous report of this bug: http://lkml.org/lkml/2008/4/20/251

cheers,
Domenico

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Subject: Re: can't find a register in class 'R1_REGS' while reloading 'asm'
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> is anybody able to reproduce it? configuration is attached.
> 
>   CC      kernel/signal.o
>   kernel/signal.c: In function 'copy_siginfo_to_user':
>   kernel/signal.c:2145: warning: cast from pointer to integer of different size
>   kernel/signal.c:2145: warning: cast from pointer to integer of different size
>   kernel/signal.c:2152: warning: cast from pointer to integer of different size
>   kernel/signal.c:2152: warning: cast from pointer to integer of different size
>   kernel/signal.c:2168: warning: cast from pointer to integer of different size
>   kernel/signal.c:2168: warning: cast from pointer to integer of different size
>   kernel/signal.c: In function 'do_sigaltstack':
>   kernel/signal.c:2489: warning: cast from pointer to integer of different size
>   kernel/signal.c:2489: warning: cast from pointer to integer of different size
>   kernel/signal.c: In function 'get_signal_to_deliver':
>   /home/cavok/devel/kernel/linux-2.6.git/arch/parisc/include/asm/spinlock.h:25: error: can't find a register in class 'R1_REGS' while reloading 'asm'
>   /home/cavok/devel/kernel/linux-2.6.git/arch/parisc/include/asm/spinlock.h:25: error: 'asm' operand has impossible constraints

I didn't get this error by just enabling SMP.

The asm at spinlock.h:25 doesn't directly use r1.  I think the only way
this might happen is 'a' is spilled to the stack at a very large offset
from the stack pointer.  The load of the offset may need r1.  There also
has to be some other code that has stolen r1 prior to the asm.

The register allocation and inlining in gcc various significantly from
one version.  So, a different gcc version might work better.  At least
one version of gcc seemed to want to nest asm's.

To debug, preprocessed source and exact gcc command line is needed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: can't find a register in class 'R1_REGS' while reloading 'asm'
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On Mon, 07 Dec 2009, John David Anglin wrote:

> > is anybody able to reproduce it? configuration is attached.

With your config, I get the same error.

I have attached a potential work around.  The basic idea is to force
'a' to a specific register to avoid the spill problem in reload.
It may be a bit risky to use 'r20' but there don't appear to be
any real calls in __raw_spin_is_locked.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index fae03e1..ce87e4b 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -18,10 +18,9 @@ static inline int __raw_spin_is_locked(raw_spinlock_t *x)
 static inline void __raw_spin_lock_flags(raw_spinlock_t *x,
 					 unsigned long flags)
 {
-	volatile unsigned int *a;
+	volatile register unsigned int *a asm ("r20") = __ldcw_align(x);
 
 	mb();
-	a = __ldcw_align(x);
 	while (__ldcw(a) == 0)
 		while (*a == 0)
 			if (flags & PSW_SM_I) {

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On Tue, Dec 08, 2009 at 12:44:04AM +0100, Domenico Andreoli wrote:
> On Sat, Dec 05, 2009 at 09:35:11AM +0100, Domenico Andreoli wrote:
> > On Fri, Dec 04, 2009 at 07:50:10PM +0100, Helge Deller wrote:
> > 
> > > I just want to make sure, that you have more or less a correct kernel
> > > configuration setup (.config)....
> > 
> > there is at least a configuration glitch which makes my kernel hang
> > and the debian one continue in degraded mode. i attached also the
> > configuration, just in case i forgot something important.
> 
> i found the configuration glitch, it is CONFIG_DEBUG_MUTEXES. if it is
> set, 64bit hangs right after "Releasing cpu 1 now, hpa=...", otherwise
> the 64bit boot continues with a "SMP: CPU:1 is stuck."

i was wrong, it's again CONFIG_DEBUG_SPINLOCK. if it is set, the
boot hangs.

i passed the last few days building kernels...

cheers,
Domenico

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On Thu, Dec 10, 2009 at 12:50:38AM +0100, Domenico Andreoli wrote:
> On Tue, Dec 08, 2009 at 12:44:04AM +0100, Domenico Andreoli wrote:
> > On Sat, Dec 05, 2009 at 09:35:11AM +0100, Domenico Andreoli wrote:
> > > On Fri, Dec 04, 2009 at 07:50:10PM +0100, Helge Deller wrote:
> > > 
> > > > I just want to make sure, that you have more or less a correct kernel
> > > > configuration setup (.config)....
> > > 
> > > there is at least a configuration glitch which makes my kernel hang
> > > and the debian one continue in degraded mode. i attached also the
> > > configuration, just in case i forgot something important.
> > 
> > i found the configuration glitch, it is CONFIG_DEBUG_MUTEXES. if it is
> > set, 64bit hangs right after "Releasing cpu 1 now, hpa=...", otherwise
> > the 64bit boot continues with a "SMP: CPU:1 is stuck."
> 
> i was wrong, it's again CONFIG_DEBUG_SPINLOCK. if it is set, the
> boot hangs.
> 
> i passed the last few days building kernels...
> 

So CONFIG_DEBUG_SPINLOCK causes hangs, with it unset, everything is
fine? Interesting. Sounds like initialization issues. I'll take a look
soon.

r, Kyle
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From - Thu Nov 08 21:05:17 2018
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From: David Daney <ddaney@caviumnetworks.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.cross-arch
Subject: [PATCH 0/5] More unreachable() conversions.
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Back in commit 38938c879eb0c39edf85d5164aa0cffe2874304c the new macro
unreachable() was added.  We can use it in BUG instead of a variety of
ad hoc endless loops.

This patch set consists of the patches from the original set that were
never Acked-by anyone.  Although they are completely untested, they
seem plausible.

I don't plan on pushing these things out any more, so if you
like them please merge them via your architecture trees.

I will reply with the 5 patches.

David Daney (5):
   mn10300: Convert BUG() to use unreachable()
   parisc: Convert BUG() to use unreachable()
   powerpc: Convert BUG() to use unreachable()
   alpha: Convert BUG() to use unreachable()
   blackfin: Convert BUG() to use unreachable()

  arch/alpha/include/asm/bug.h    |    3 ++-
  arch/blackfin/include/asm/bug.h |    2 +-
  arch/mn10300/include/asm/bug.h  |    3 ++-
  arch/parisc/include/asm/bug.h   |    4 ++--
  arch/powerpc/include/asm/bug.h  |    2 +-
  5 files changed, 8 insertions(+), 6 deletions(-)

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From - Thu Nov 08 21:05:17 2018
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From: David Daney <ddaney@caviumnetworks.com>
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Subject: [PATCH 2/5] parisc: Convert BUG() to use unreachable()
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Use the new unreachable() macro instead of for(;;);

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
CC: Kyle McMartin <kyle@mcmartin.ca>
CC: Helge Deller <deller@gmx.de>
CC: linux-parisc@vger.kernel.org
---
 arch/parisc/include/asm/bug.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
index 8cfc553..75e46c5 100644
--- a/arch/parisc/include/asm/bug.h
+++ b/arch/parisc/include/asm/bug.h
@@ -32,14 +32,14 @@
 			     "\t.popsection"				\
 			     : : "i" (__FILE__), "i" (__LINE__),	\
 			     "i" (0), "i" (sizeof(struct bug_entry)) ); \
-		for(;;) ;						\
+		unreachable();						\
 	} while(0)
 
 #else
 #define BUG()								\
 	do {								\
 		asm volatile(PARISC_BUG_BREAK_ASM : : );		\
-		for(;;) ;						\
+		unreachable();						\
 	} while(0)
 #endif
 
-- 
1.6.2.5

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From - Thu Nov 08 21:05:18 2018
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From: Domenico Andreoli <cavokz@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: my usual problem with 64bit kernel
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On Thu, Dec 10, 2009 at 6:08 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Thu, Dec 10, 2009 at 12:50:38AM +0100, Domenico Andreoli wrote:
>> On Tue, Dec 08, 2009 at 12:44:04AM +0100, Domenico Andreoli wrote:
>> > On Sat, Dec 05, 2009 at 09:35:11AM +0100, Domenico Andreoli wrote:
>> > > On Fri, Dec 04, 2009 at 07:50:10PM +0100, Helge Deller wrote:
>> > >
>> > > > I just want to make sure, that you have more or less a correct kernel
>> > > > configuration setup (.config)....
>> > >
>> > > there is at least a configuration glitch which makes my kernel hang
>> > > and the debian one continue in degraded mode. i attached also the
>> > > configuration, just in case i forgot something important.
>> >
>> > i found the configuration glitch, it is CONFIG_DEBUG_MUTEXES. if it is
>> > set, 64bit hangs right after "Releasing cpu 1 now, hpa=...", otherwise
>> > the 64bit boot continues with a "SMP: CPU:1 is stuck."
>>
>> i was wrong, it's again CONFIG_DEBUG_SPINLOCK. if it is set, the
>> boot hangs.
>>
>> i passed the last few days building kernels...
>>
>
> So CONFIG_DEBUG_SPINLOCK causes hangs, with it unset, everything is
> fine? Interesting. Sounds like initialization issues. I'll take a look soon.

no exactly, with CONFIG_DEBUG_SPINLOCK unset kernel boots but still with
1 CPU and the "SMP: CPU:1 is stuck." message, this at 64bit.

at 32bit and CONFIG_DEBUG_SPINLOCK unset (both gcc 4.3 & 4.4) i get
the build error i reported in another thread. with CONFIG_DEBUG_SPINLOCK
set kernel builds and runs nicely.

regards,
Domenico

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Subject: Re: my usual problem with 64bit kernel
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On Thu, Dec 10, 2009 at 7:42 PM, Domenico Andreoli <cavokz@gmail.com> wrote:
> On Thu, Dec 10, 2009 at 6:08 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
>> On Thu, Dec 10, 2009 at 12:50:38AM +0100, Domenico Andreoli wrote:
>>> On Tue, Dec 08, 2009 at 12:44:04AM +0100, Domenico Andreoli wrote:
>>> > On Sat, Dec 05, 2009 at 09:35:11AM +0100, Domenico Andreoli wrote:
>>> > > On Fri, Dec 04, 2009 at 07:50:10PM +0100, Helge Deller wrote:
>>> > >
>>> > > > I just want to make sure, that you have more or less a correct kernel
>>> > > > configuration setup (.config)....
>>> > >
>>> > > there is at least a configuration glitch which makes my kernel hang
>>> > > and the debian one continue in degraded mode. i attached also the
>>> > > configuration, just in case i forgot something important.
>>> >
>>> > i found the configuration glitch, it is CONFIG_DEBUG_MUTEXES. if it is
>>> > set, 64bit hangs right after "Releasing cpu 1 now, hpa=...", otherwise
>>> > the 64bit boot continues with a "SMP: CPU:1 is stuck."
>>>
>>> i was wrong, it's again CONFIG_DEBUG_SPINLOCK. if it is set, the
>>> boot hangs.
>>>
>>> i passed the last few days building kernels...
>>>
>>
>> So CONFIG_DEBUG_SPINLOCK causes hangs, with it unset, everything is
>> fine? Interesting. Sounds like initialization issues. I'll take a look soon.
>
> no exactly, with CONFIG_DEBUG_SPINLOCK unset kernel boots but still with
> 1 CPU and the "SMP: CPU:1 is stuck." message, this at 64bit.

FYI, it must be something old, the behavior is the same i reported here
http://lkml.org/lkml/2008/4/21/454 with 2.6.24.

> at 32bit and CONFIG_DEBUG_SPINLOCK unset (both gcc 4.3 & 4.4) i get
> the build error i reported in another thread. with CONFIG_DEBUG_SPINLOCK
> set kernel builds and runs nicely.

-----[ Domenico Andreoli, aka cavok
 --[ http://www.dandreoli.com/gpgkey.asc
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From - Thu Nov 08 21:05:18 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH 2/5] parisc: Convert BUG() to use unreachable()
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On Thu, Dec 10, 2009 at 09:28:18AM -0800, David Daney wrote:
> Use the new unreachable() macro instead of for(;;);
> 
> Signed-off-by: David Daney <ddaney@caviumnetworks.com>
> CC: Kyle McMartin <kyle@mcmartin.ca>
> CC: Helge Deller <deller@gmx.de>
> CC: linux-parisc@vger.kernel.org
> ---

Thanks David, I'll bash this into my tree now that the macro is
upstream.

regards, Kyle
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From: Michal Ludvig <mludvig@logix.net.nz>
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Subject: console handover: boot [ttyB0] -> real [ttyS0]
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Hi,

it is the first time I'm trying to install Linux on HP9000 rp3410
machine. I'm booting off Debian 5.0.3 CD, PALO selects 64bit kernel,
later on the kernel detects ttyS0 but the console output stops at:

PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9a
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 74) is a 16550A
console handover: boot [ttyB0] -> real [ttyS0]
<that's it>

I tried to pass serial=ttyS0 to the kernel but then the output stops a
wee while later as well:

STI GSC/PCI core graphics driver Version 0.9a
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 74) is a 16550A
0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 74) is a 16550A
0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 74) is a 16550A
0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 74) is a 16550A
brd: module loaded
mice: PS/2 mouse device common for all mice
TCP cubic registered
NET: Registered protocol family 17
turn off boot console ttyB0
<that's it>

I'm connected over serial to MP and using COnsole from there.

What am I doing wrong / how to make it work?

Thanks!

Michal


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On Sat, Dec 12, 2009 at 10:31 AM, Michal Ludvig <mludvig@logix.net.nz> wrote:
> Hi,

Hi,

> I tried to pass serial=ttyS0 to the kernel but then the output stops a
> wee while later as well:

Try ttyS1

HTH

-- 
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On 12/13/2009 09:47 AM, Thibaut VARENE wrote:
> On Sat, Dec 12, 2009 at 10:31 AM, Michal Ludvig <mludvig@logix.net.nz> wrote:
>> I tried to pass serial=ttyS0 to the kernel but then the output stops a
>> wee while later as well:
> 
> Try ttyS1

That's it, thanks!

Now I'm a bit confused - where are all the serial ports? I've got
'remote', 'console' and 'ups' pigtails hanging off the back of the
server. Are they all usable as ttySx? Is there one more port hidden
somewhere?

Is it configurable which one of ttyS0 - ttyS3 turns the ttyB0 boot
console to?

Michal


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On Tue, Dec 15, 2009 at 12:39 AM, Michal Ludvig <mludvig@logix.net.nz> wrote:
> On 12/13/2009 09:47 AM, Thibaut VARENE wrote:
>> On Sat, Dec 12, 2009 at 10:31 AM, Michal Ludvig <mludvig@logix.net.nz> wrote:
>>> I tried to pass serial=ttyS0 to the kernel but then the output stops a
>>> wee while later as well:
>>
>> Try ttyS1
>
> That's it, thanks!
>
> Now I'm a bit confused - where are all the serial ports? I've got
> 'remote', 'console' and 'ups' pigtails hanging off the back of the
> server. Are they all usable as ttySx? Is there one more port hidden
> somewhere?

This should answer your question:
http://wiki.parisc-linux.org/GuardianServiceProcessor

> Is it configurable which one of ttyS0 - ttyS3 turns the ttyB0 boot
> console to?

I'm not sure I can make sense of that question. At boot time you can
choose which physical port you want to hook your cable to (provided
it's a console port, see the above link) and it's then up to you to
make sure that you tell the kernel which UART you're connected to.

rp34xx machines' first ("default") console port is detected by the
linux kernel as ttyS1, this is due to inner workings of the kernel and
you have no control over that.


-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On Tue, Dec 15, 2009 at 12:39:06PM +1300, Michal Ludvig wrote:
...
> Is it configurable which one of ttyS0 - ttyS3 turns the ttyB0 boot
> console to?

ttyB0 is the "PDC Console" device name - linux kernel is using PDC
to push characters to the device defined in PDC (aka BIOS) to be console.
Interrupt the autoboot process and look at "in all".

ttyS0-ttyS3 are enumerations of Serial devices that the linux kernel
discovers when respective drivers are loaded. ttyB0 and ttyS<n> are
just different drivers accessing the same HW - preferably not at the
same time and that's why the kernel stops using ttyB0 later.

That make more sense?

grant
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From - Thu Nov 08 21:05:18 2018
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Grant Grundler wrote:
> On Tue, Dec 15, 2009 at 12:39:06PM +1300, Michal Ludvig wrote:
> ...
>> Is it configurable which one of ttyS0 - ttyS3 turns the ttyB0 boot
>> console to?
> 
> ttyB0 is the "PDC Console" device name - linux kernel is using PDC
> to push characters to the device defined in PDC (aka BIOS) to be console.
> Interrupt the autoboot process and look at "in all".
> 
> ttyS0-ttyS3 are enumerations of Serial devices that the linux kernel
> discovers when respective drivers are loaded. ttyB0 and ttyS<n> are
> just different drivers accessing the same HW - preferably not at the
> same time and that's why the kernel stops using ttyB0 later.
> 
> That make more sense?

Yes it does :-) Thanks!

Michal
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On Tue, Dec 15, 2009 at 2:52 AM, Sergei Golovan <sgolovan@nes.ru> wrote:
> After the recent changes in hppa architecture Erlang virtual machine
> fails to start (which leads to several FTBFS bugs in particular:
> #559628, #559962, #559004).
>
> The problem is that after vfork(), execve() fails to start a child
> process. It sets errno to EMFILE. If I run erl under strace, it works
> fine. Is it a bug in glibc, or in Erlang itself?
>
> I'm giving a small excerpt from erts/emulator/sys/unix/sys.c file
> where the failed execve(), the rest could be found in erlang
> 12.b.2.1-1 sources.

Are you certain that execve() fails to start a child process?

While debugging emacs32 failures I discovered that execve() works, but
that the parent which called the vfork() is corrupted by the child.

I posted a test case for our kernel developers to look at here:
http://article.gmane.org/gmane.linux.ports.parisc/2403

We haven't been able to determine the cause of the failure yet.

Cheers,
Carlos.
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From: Sergei Golovan <sgolovan@nes.ru>
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On Tue, Dec 15, 2009 at 7:11 PM,  <carlos@systemhalted.org> wrote:
> On Tue, Dec 15, 2009 at 2:52 AM, Sergei Golovan <sgolovan@nes.ru> wrote:
>> After the recent changes in hppa architecture Erlang virtual machine
>> fails to start (which leads to several FTBFS bugs in particular:
>> #559628, #559962, #559004).
>>
>> The problem is that after vfork(), execve() fails to start a child
>> process. It sets errno to EMFILE. If I run erl under strace, it works
>> fine. Is it a bug in glibc, or in Erlang itself?
>>
>> I'm giving a small excerpt from erts/emulator/sys/unix/sys.c file
>> where the failed execve(), the rest could be found in erlang
>> 12.b.2.1-1 sources.
>
> Are you certain that execve() fails to start a child process?

Yes, after I've inserted some debug printf() right after execve() it
was reached.

>
> While debugging emacs32 failures I discovered that execve() works, but
> that the parent which called the vfork() is corrupted by the child.

But you're right, parent process becomes seems to be corrupt after
vfork(). (At least test printf() doesn't print anything.

> We haven't been able to determine the cause of the failure yet.

OK, I see.

Cheers!
-- 
Sergei Golovan
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On Thu, Dec 10, 2009 at 12:50:38AM +0100, Domenico Andreoli wrote:
> On Tue, Dec 08, 2009 at 12:44:04AM +0100, Domenico Andreoli wrote:
> > On Sat, Dec 05, 2009 at 09:35:11AM +0100, Domenico Andreoli wrote:
> > > On Fri, Dec 04, 2009 at 07:50:10PM +0100, Helge Deller wrote:
> > > 
> > > > I just want to make sure, that you have more or less a correct kernel
> > > > configuration setup (.config)....
> > > 
> > > there is at least a configuration glitch which makes my kernel hang
> > > and the debian one continue in degraded mode. i attached also the
> > > configuration, just in case i forgot something important.
> > 
> > i found the configuration glitch, it is CONFIG_DEBUG_MUTEXES. if it is
> > set, 64bit hangs right after "Releasing cpu 1 now, hpa=...", otherwise
> > the 64bit boot continues with a "SMP: CPU:1 is stuck."
> 
> i was wrong, it's again CONFIG_DEBUG_SPINLOCK. if it is set, the
> boot hangs.

i bisected something, commit 44048d700bcbfaf4bcca6e2e0a73d89d01ec0878
breaks my SMP parisc64. before it, kernel boots with 2 CPUs
(as did 2.6.22). after it, it hangs at "Releasing cpu 1 now,
hpa=fffffffffffa2000" but CONFIG_DEBUG_SPINLOCK is _not_ set, the
opposite i reported in this thread at 64bit and consistently with
current 2.6.32 at 32bit.

i'm pretty confused by the whole thing but i'm sure about this bisection,
i double-checked it. here is the diff.

--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -749,23 +749,6 @@ int move_freepages_block(struct zone *zone, struct page *page, int migratetype)
        return move_freepages(zone, start_page, end_page, migratetype);
 }
 
-/* Return the page with the lowest PFN in the list */
-static struct page *min_page(struct list_head *list)
-{
-       unsigned long min_pfn = -1UL;
-       struct page *min_page = NULL, *page;;
-
-       list_for_each_entry(page, list, lru) {
-               unsigned long pfn = page_to_pfn(page);
-               if (pfn < min_pfn) {
-                       min_pfn = pfn;
-                       min_page = page;
-               }
-       }
-
-       return min_page;
-}

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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: Erlang VM immediately exits on hppa: execve() fails
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On Tue, Dec 15, 2009 at 2:24 PM, Sergei Golovan <sgolovan@nes.ru> wrote=
:
> On Tue, Dec 15, 2009 at 7:11 PM, =A0<carlos@systemhalted.org> wrote:
>> On Tue, Dec 15, 2009 at 2:52 AM, Sergei Golovan <sgolovan@nes.ru> wr=
ote:
>>> After the recent changes in hppa architecture Erlang virtual machin=
e
>>> fails to start (which leads to several FTBFS bugs in particular:
>>> #559628, #559962, #559004).
>>>
>>> The problem is that after vfork(), execve() fails to start a child
>>> process. It sets errno to EMFILE. If I run erl under strace, it wor=
ks
>>> fine. Is it a bug in glibc, or in Erlang itself?
>>>
>>> I'm giving a small excerpt from erts/emulator/sys/unix/sys.c file
>>> where the failed execve(), the rest could be found in erlang
>>> 12.b.2.1-1 sources.
>>
>> Are you certain that execve() fails to start a child process?
>
> Yes, after I've inserted some debug printf() right after execve() it
> was reached.

Yes, you are definitely right, I hadn't thought to try that.

I will test an instrumented kernel tonight to see what the problem is.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:19 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: vfork test case.
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	kyle@mcmartin.ca, James.Bottomley@hansenpartnership.com
To: carlos@systemhalted.org (Carlos O'Donell)
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> I have constructed a vfork test case which shows some of the problems
> I have using vfork reliably. This fails every time on my PA8700 system
> running 2.6.32-rc6. It appears as though r28 (ret0) in the parent is
> being corrupted.

The test doesn't fail on two of my builds:
Linux mx3210 2.6.31.7 #5 Wed Dec 9 22:49:53 EST 2009 parisc64
Linux hiauly6 2.6.31.7 #18 Wed Dec 9 21:34:36 EST 2009 parisc

Are you running a SMP config?

Dave
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On Tue, Dec 15, 2009 at 09:25:47PM +0100, Domenico Andreoli wrote:
> (as did 2.6.22). after it, it hangs at "Releasing cpu 1 now,
> hpa=fffffffffffa2000" but CONFIG_DEBUG_SPINLOCK is _not_ set, the
> opposite i reported in this thread at 64bit and consistently with
> current 2.6.32 at 32bit.
> 
> i'm pretty confused by the whole thing but i'm sure about this bisection,
> i double-checked it. here is the diff.
> 

thanks for bisecting it. i'll take a look unless you beat me to it.
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Cc: Domenico Andreoli <cavokz@gmail.com>, linux-parisc@vger.kernel.org
To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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On Mon, Dec 07, 2009 at 10:01:14PM -0500, John David Anglin wrote:
> On Mon, 07 Dec 2009, John David Anglin wrote:
> 
> > > is anybody able to reproduce it? configuration is attached.
> 
> With your config, I get the same error.
> 
> I have attached a potential work around.  The basic idea is to force
> 'a' to a specific register to avoid the spill problem in reload.
> It may be a bit risky to use 'r20' but there don't appear to be
> any real calls in __raw_spin_is_locked.
> 

Do you want this patch applied to 2.6.32-rc1, John?

regards, Kyle
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Rebased ref, commits from common ancestor:
commit d0608b54740c82b08056b7611e38a3fd73be3564
Author: Thomas Gleixner <tglx@linutronix.de>
Date:   Tue Nov 17 22:50:59 2009 +0000

    parisc: Fixup last users of irq_chip->typename
    
    The typename member of struct irq_chip was kept for migration purposes
    and is obsolete since more than 2 years. Fix up the leftovers.
    
    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 217bfb5190813d97e6003f7692f8014655ffc02a
Author: Alexey Dobriyan <adobriyan@gmail.com>
Date:   Fri Nov 27 06:51:12 2009 +0000

    parisc: convert /proc/pdc/{lcd,led} to seq_file
    
    Convert code away from ->read_proc/->write_proc interfaces.
    Switch to proc_create()/proc_create_data() which make addition of
    proc entries reliable wrt NULL ->proc_fops, NULL ->data and so on.
    
    Problem with ->read_proc et al is described here
    commit 786d7e1612f0b0adb6046f19b906609e4fe8b1ba
    "Fix rmmod/read/write races in /proc entries"
    
    Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
    Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 05920797ca4c55b3c0629bc0eeb6fe634c196952
Author: David Daney <ddaney@caviumnetworks.com>
Date:   Thu Dec 10 17:28:18 2009 +0000

    parisc: Convert BUG() to use unreachable()
    
    Use the new unreachable() macro instead of for(;;);
    
    Signed-off-by: David Daney <ddaney@caviumnetworks.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 6ad6c4245e4ed0b88f5ee379c04c834b52b272a6
Author: Thomas Gleixner <tglx@linutronix.de>
Date:   Fri Nov 6 22:41:51 2009 +0000

    parisc: Replace old style lock init in smp.c
    
    SPIN_LOCK_UNLOCKED is deprecated. Init the per cpu locks at runtime
    instead.
    
    (Also kills the unused smp_lock --kyle)
    
    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 8f78df872d463ac43315916663b3e688ebb2422f
Author: Helge Deller <deller@gmx.de>
Date:   Fri Nov 6 23:07:42 2009 +0000

    parisc: use sort() instead of home-made implementation (v2)
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Randolph Chung <tausq@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 11e178091f6a9c5ca479f8a276b9dd0dfacf8fc4
Author: Helge Deller <deller@gmx.de>
Date:   Sun Oct 25 21:48:36 2009 +0000

    parisc: add CALLER_ADDR{0-6} macros
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit b29f90379eb5def21ca3fdf576079c285b815e6a
Author: Helge Deller <deller@gmx.de>
Date:   Sat Oct 10 11:01:30 2009 +0000

    parisc: remove unused IRQSTAT_SIRQ_PEND and IRQSTAT_SZ defines
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 5aea0fac0fb295b0f2528cd03f93541bcd5c78e3
Author: Huang Weiyi <weiyi.huang@gmail.com>
Date:   Sat Oct 10 06:56:45 2009 +0000

    parisc: remove duplicated #include
    
    Remove duplicated #include('s) in
      arch/parisc/kernel/signal.c
    
    Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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> On Mon, Dec 07, 2009 at 10:01:14PM -0500, John David Anglin wrote:
> > On Mon, 07 Dec 2009, John David Anglin wrote:
> > 
> > > > is anybody able to reproduce it? configuration is attached.
> > 
> > With your config, I get the same error.
> > 
> > I have attached a potential work around.  The basic idea is to force
> > 'a' to a specific register to avoid the spill problem in reload.
> > It may be a bit risky to use 'r20' but there don't appear to be
> > any real calls in __raw_spin_is_locked.
> > 
> 
> Do you want this patch applied to 2.6.32-rc1, John?

Yes, I think it's a reasonable work around.  I did check that it
resolves the kernel build error.

There is a GCC PR on this issue, but fixing the problem isn't easy.  See
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35193

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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Rebased ref, commits from common ancestor:
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From - Thu Nov 08 21:05:19 2018
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Subject: Re: my usual problem with 64bit kernel
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> On Tue, Dec 15, 2009 at 09:25:47PM +0100, Domenico Andreoli wrote:
> > (as did 2.6.22). after it, it hangs at "Releasing cpu 1 now,
> > hpa=fffffffffffa2000" but CONFIG_DEBUG_SPINLOCK is _not_ set, the
> > opposite i reported in this thread at 64bit and consistently with
> > current 2.6.32 at 32bit.
> > 
> > i'm pretty confused by the whole thing but i'm sure about this bisection,
> > i double-checked it. here is the diff.
> > 
> 
> thanks for bisecting it. i'll take a look unless you beat me to it.

The removal of this change caused similar problems on a couple of
other targets.  It's a bit strange since this change was only installed
for a brief time.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:19 2018
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From: Kyle McMartin <kyle@hera.kernel.org>
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Subject: [git patches] parisc pull request for 2.6.33
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Hi Linus,

Mostly just compile and bug fixes this release, with a clean up from
Alexey to use seq_file, plus some ftrace stuff from Helge.

Thanks!
	Kyle

The following changes since commit 8bea8672edfca7ec5f661cafb218f1205863b343:
  Stephen Rothwell (1):
        mfd: compile fix for twl4030 renaming

are available in the git repository at:

  /pub/scm/linux/kernel/git/kyle/parisc-2.6.git next

Alexey Dobriyan (1):
      parisc: convert /proc/pdc/{lcd,led} to seq_file

David Daney (1):
      parisc: Convert BUG() to use unreachable()

Helge Deller (3):
      parisc: remove unused IRQSTAT_SIRQ_PEND and IRQSTAT_SZ defines
      parisc: add CALLER_ADDR{0-6} macros
      parisc: use sort() instead of home-made implementation (v2)

Huang Weiyi (1):
      parisc: remove duplicated #include

Thomas Gleixner (2):
      parisc: Replace old style lock init in smp.c
      parisc: Fixup last users of irq_chip->typename

 arch/parisc/include/asm/bug.h    |    4 +-
 arch/parisc/include/asm/ftrace.h |   14 +++++++++
 arch/parisc/kernel/asm-offsets.c |    3 --
 arch/parisc/kernel/irq.c         |    4 +-
 arch/parisc/kernel/signal.c      |    1 -
 arch/parisc/kernel/smp.c         |    9 ++++--
 arch/parisc/kernel/unwind.c      |   50 +++++++++++++++++++++++---------
 drivers/parisc/dino.c            |    2 +-
 drivers/parisc/eisa.c            |    2 +-
 drivers/parisc/gsc.c             |    2 +-
 drivers/parisc/iosapic.c         |    2 +-
 drivers/parisc/led.c             |   59 ++++++++++++++++++-------------------
 drivers/parisc/superio.c         |    2 +-
 13 files changed, 94 insertions(+), 60 deletions(-)
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From - Thu Nov 08 21:05:20 2018
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From: Kyle McMartin <kyle@hera.kernel.org>
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Subject: [git patches] xfs and block fixes for virtually indexed arches
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Cc: linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org,
	James.Bottomley@suse.de, hch@infradead.org
To: torvalds@linux-foundation.org
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As discussed on linux-arch@ recently, these fixes are necessary for
XFS to work on virtually indexed architectures since otherwise vmalloc'd
pages are not properly flushed from the cache.

Thanks!
 Kyle

The following changes since commit 8bea8672edfca7ec5f661cafb218f1205863b343:
  Stephen Rothwell (1):
        mfd: compile fix for twl4030 renaming

are available in the git repository at:

  hera.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git coherence

James Bottomley (6):
      mm: add coherence API for DMA to vmalloc/vmap areas
      parisc: add mm API for DMA to vmalloc/vmap areas
      arm: add mm API for DMA to vmalloc/vmap areas
      sh: add mm API for DMA to vmalloc/vmap areas
      block: permit I/O to vmalloc/vmap kernel pages
      xfs: fix xfs to work with Virtually Indexed architectures

 Documentation/cachetlb.txt           |   24 ++++++++++++++++++++++++
 arch/arm/include/asm/cacheflush.h    |   10 ++++++++++
 arch/parisc/include/asm/cacheflush.h |    8 ++++++++
 arch/sh/include/asm/cacheflush.h     |    8 ++++++++
 fs/bio.c                             |   20 ++++++++++++++++++--
 fs/xfs/linux-2.6/xfs_buf.c           |   20 ++++++++++++++++++++
 include/linux/highmem.h              |    6 ++++++
 7 files changed, 94 insertions(+), 2 deletions(-)
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From - Thu Nov 08 21:05:20 2018
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From: Kyle McMartin <kyle@hera.kernel.org>
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Subject: Re: [git patches] parisc pull request for 2.6.33
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On Wed, Dec 16, 2009 at 04:27:38AM +0000, Kyle McMartin wrote:
>   /pub/scm/linux/kernel/git/kyle/parisc-2.6.git next
> 

Dreadfully sorry, meant to fix that up to be:

hera.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git next

before I sent the email.

regards, Kyle
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On Tue, Dec 15, 2009 at 5:21 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> I have constructed a vfork test case which shows some of the problems
>> I have using vfork reliably. This fails every time on my PA8700 system
>> running 2.6.32-rc6. It appears as though r28 (ret0) in the parent is
>> being corrupted.
>
> The test doesn't fail on two of my builds:
> Linux mx3210 2.6.31.7 #5 Wed Dec 9 22:49:53 EST 2009 parisc64
> Linux hiauly6 2.6.31.7 #18 Wed Dec 9 21:34:36 EST 2009 parisc

Interesting.

> Are you running a SMP config?

Yes, 64-bit 2.6.32-rc6.

I recently discovered that execve is actually *returning* from the
kernel, and this is a huge problem. I'm instrumenting the kernel to
determine why this is happening.

Cheers,
Carlos.
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On 12/15/2009 11:21 PM, John David Anglin wrote:
>> I have constructed a vfork test case which shows some of the problems
>> I have using vfork reliably. This fails every time on my PA8700 system
>> running 2.6.32-rc6. It appears as though r28 (ret0) in the parent is
>> being corrupted.
>
> The test doesn't fail on two of my builds:
> Linux mx3210 2.6.31.7 #5 Wed Dec 9 22:49:53 EST 2009 parisc64
> Linux hiauly6 2.6.31.7 #18 Wed Dec 9 21:34:36 EST 2009 parisc

I did tested your testcase on my c3000 too but it didn't failed for me either.
This was on some 2.6.32-rc candidate.

Helge
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> On 12/15/2009 11:21 PM, John David Anglin wrote:
> >> I have constructed a vfork test case which shows some of the problems
> >> I have using vfork reliably. This fails every time on my PA8700 system
> >> running 2.6.32-rc6. It appears as though r28 (ret0) in the parent is
> >> being corrupted.
> >
> > The test doesn't fail on two of my builds:
> > Linux mx3210 2.6.31.7 #5 Wed Dec 9 22:49:53 EST 2009 parisc64
> > Linux hiauly6 2.6.31.7 #18 Wed Dec 9 21:34:36 EST 2009 parisc
> 
> I did tested your testcase on my c3000 too but it didn't failed for me either.
> This was on some 2.6.32-rc candidate.

I think it must be because Carlos is building SMP kernels.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:20 2018
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Linus, any word on these? I'd really love to get jejb and hch off
my back. :)

cheers, Kyle

On Wed, Dec 16, 2009 at 04:36:18AM +0000, Kyle McMartin wrote:
> As discussed on linux-arch@ recently, these fixes are necessary for
> XFS to work on virtually indexed architectures since otherwise vmalloc'd
> pages are not properly flushed from the cache.
> 
> Thanks!
>  Kyle
> 
> The following changes since commit 8bea8672edfca7ec5f661cafb218f1205863b343:
>   Stephen Rothwell (1):
>         mfd: compile fix for twl4030 renaming
> 
> are available in the git repository at:
> 
>   hera.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git coherence
> 
> James Bottomley (6):
>       mm: add coherence API for DMA to vmalloc/vmap areas
>       parisc: add mm API for DMA to vmalloc/vmap areas
>       arm: add mm API for DMA to vmalloc/vmap areas
>       sh: add mm API for DMA to vmalloc/vmap areas
>       block: permit I/O to vmalloc/vmap kernel pages
>       xfs: fix xfs to work with Virtually Indexed architectures
> 
>  Documentation/cachetlb.txt           |   24 ++++++++++++++++++++++++
>  arch/arm/include/asm/cacheflush.h    |   10 ++++++++++
>  arch/parisc/include/asm/cacheflush.h |    8 ++++++++
>  arch/sh/include/asm/cacheflush.h     |    8 ++++++++
>  fs/bio.c                             |   20 ++++++++++++++++++--
>  fs/xfs/linux-2.6/xfs_buf.c           |   20 ++++++++++++++++++++
>  include/linux/highmem.h              |    6 ++++++
>  7 files changed, 94 insertions(+), 2 deletions(-)
> --
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On Thu, Dec 17, 2009 at 08:22:56AM -0500, Kyle McMartin wrote:
> Linus, any word on these? I'd really love to get jejb and hch off
> my back. :)

Yeah, users have been pretty impatiently waiting for this.


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On Wed, Dec 16, 2009 at 4:35 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> On 12/15/2009 11:21 PM, John David Anglin wrote:
>> >> I have constructed a vfork test case which shows some of the problems
>> >> I have using vfork reliably. This fails every time on my PA8700 system
>> >> running 2.6.32-rc6. It appears as though r28 (ret0) in the parent is
>> >> being corrupted.
>> >
>> > The test doesn't fail on two of my builds:
>> > Linux mx3210 2.6.31.7 #5 Wed Dec 9 22:49:53 EST 2009 parisc64
>> > Linux hiauly6 2.6.31.7 #18 Wed Dec 9 21:34:36 EST 2009 parisc
>>
>> I did tested your testcase on my c3000 too but it didn't failed for me either.
>> This was on some 2.6.32-rc candidate.
>
> I think it must be because Carlos is building SMP kernels.

Yes, I'm trying to shake out some SMP bugs.

Dan, you said that the emacs32 failure went away when you upgraded to
2.6.32 stable on the buildds. Are they running SMP kernels? Could you
try the vfork test case there?

Test case is here:
http://article.gmane.org/gmane.linux.ports.parisc/2403

Cheers,
Carlos.
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On Thu, 17 Dec 2009, Kyle McMartin wrote:
>
> Linus, any word on these? I'd really love to get jejb and hch off
> my back. :)

I hate them.

I don't see what the point of allowing kernel virtual addresses in bio's 
is. It's wrong. The fact that XFS does that sh*t is an XFS issue. Handle 
it there.

Fix XFS. Or convince me with some really good arguments, and make sure 
that Jens signs off on the cr*p too.

In other words, the thing I object to isn't even the new flushing thing, 
it's this idiocy:

 - save off virtual address:
	..
	bio->bi_private = data;
	..

 - do vmalloc_to_page:

	+		if (is_vmalloc_addr(data)) {
	+			flush_kernel_dcache_addr(data);
	+			page = vmalloc_to_page(data);
	+		} else
	+			page = virt_to_page(data);

WTF? Why the hell should the block layer support this kind of absolute 
crap? When has "use random kernel virtual address" ever been a valid thing 
to do for IO?

Why aren't you doing this before you submit the vmalloc range for IO?

So no. Not a way in hell do I pull this for 33. And preferably never.

		Linus

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On Thu, Dec 17, 2009 at 08:16:12AM -0800, Linus Torvalds wrote:
> 
> I hate them.
> 
> I don't see what the point of allowing kernel virtual addresses in bio's 
> is. It's wrong. The fact that XFS does that sh*t is an XFS issue. Handle 
> it there.
> 
> Fix XFS. Or convince me with some really good arguments, and make sure 
> that Jens signs off on the cr*p too.

I have a somewhat similar issue that comes up for ext4; at the moment
occasionaly we need to clone a buffer head buffer; either because the
first four bytes match the magic JBD "escape sequence", and we need to
modify the block and escape it before writing it to the journal, or
because we need to make a copy of a allocation bitmap block so we can
write a fixed copy to disk while we modify the "real" block during a
commit.  At the moment we allocate a full page, even if that means
allocating a 16k PPC page when the file system block size is 4k, or
allocating a 4k x86 page when the file system block size is 1k.

That's because apparently the iSCSI and DMA blocks assume that they
have Real Pages (tm) passed to block I/O requests, and apparently XFS
ran into problems when sending vmalloc'ed pages.  I don't know if this
is a problem if we pass the bio layer addresses coming from the SLAB
allocator, but oral tradition seems to indicate this is problematic,
although no one has given me the full chapter and verse explanation
about why this is so.

Now that I see Linus's complaint, I'm wondering if the issue is really
about kernel virtual addresses (i.e., coming from vmalloc), and not a
requirement for Real Pages (i.e., coming from the SLAB allocator as
opposed to get_free_page).  And can this be documented someplace?  I
tried looking at the bio documentation, and couldn't find anything
definitive on the subject.

Thanks,

						- Ted

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On Thu, Dec 17, 2009 at 09:24:05AM -0500, Carlos O'Donell wrote:
> On Wed, Dec 16, 2009 at 4:35 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> >> On 12/15/2009 11:21 PM, John David Anglin wrote:
> >> >> I have constructed a vfork test case which shows some of the problems
> >> >> I have using vfork reliably. This fails every time on my PA8700 system
> >> >> running 2.6.32-rc6. It appears as though r28 (ret0) in the parent is
> >> >> being corrupted.
> >> >
> >> > The test doesn't fail on two of my builds:
> >> > Linux mx3210 2.6.31.7 #5 Wed Dec 9 22:49:53 EST 2009 parisc64
> >> > Linux hiauly6 2.6.31.7 #18 Wed Dec 9 21:34:36 EST 2009 parisc
> >>
> >> I did tested your testcase on my c3000 too but it didn't failed for me either.
> >> This was on some 2.6.32-rc candidate.
> >
> > I think it must be because Carlos is building SMP kernels.
> 
> Yes, I'm trying to shake out some SMP bugs.
> 
> Dan, you said that the emacs32 failure went away when you upgraded to
> 2.6.32 stable on the buildds. Are they running SMP kernels?

Nope. When I initially took over these buildds I tried SMP kernels and
found them to be far less stable, so we're sticking w/ UP.

That means that some emacs23 build attempts may have been on SMP, but
most were not. Kernel versions should be available in the build logs.
smp kernels should all have 'smp' in their uname output.

> Could you try the vfork test case there?

dannf@penalosa:/tmp$ cat /proc/version
Linux version 2.6.32-trunk-parisc64 (Debian 2.6.32-1) (waldi@debian.org) (gcc version 4.3.4 (GCC) ) #1 Tue Dec 8 04:07:32 UTC 2009
dannf@penalosa:/tmp$ gcc -O1 -g -o vfork-01 vfork.c
dannf@penalosa:/tmp$ gcc -O0 -g -o vfork-00 vfork.c
dannf@penalosa:/tmp$ ./vfork-01
child != 0
child is 0x10c8
dannf@penalosa:/tmp$ total 28
-rwxr-xr-x 1 dannf Debian  9333 Dec 17 16:41 vfork-00
-rwxr-xr-x 1 dannf Debian 10383 Dec 17 16:40 vfork-01
-rw-r--r-- 1 dannf Debian   380 Dec 17 16:40 vfork.c

dannf@penalosa:/tmp$ ./vfork-00 
child != 0
child is 0x1101
dannf@penalosa:/tmp$ total 28
-rwxr-xr-x 1 dannf Debian  9333 Dec 17 16:41 vfork-00
-rwxr-xr-x 1 dannf Debian 10383 Dec 17 16:40 vfork-01
-rw-r--r-- 1 dannf Debian   380 Dec 17 16:40 vfork.c

> Test case is here:
> http://article.gmane.org/gmane.linux.ports.parisc/2403
> 
> Cheers,
> Carlos.
> 

-- 
dann frazier

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From - Thu Nov 08 21:05:20 2018
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On Thu, 17 Dec 2009, tytso@mit.edu wrote:
> 
> That's because apparently the iSCSI and DMA blocks assume that they
> have Real Pages (tm) passed to block I/O requests, and apparently XFS
> ran into problems when sending vmalloc'ed pages.  I don't know if this
> is a problem if we pass the bio layer addresses coming from the SLAB
> allocator, but oral tradition seems to indicate this is problematic,
> although no one has given me the full chapter and verse explanation
> about why this is so.

kmalloc() memory should be ok. It's backed by "real pages". Doing the DMA 
translations for such pages is trivial and fundamental.

In contrast, vmalloc is pure and utter unadulterated CRAP. The pages 
may be contiguous virtually, but it makes no difference for the block 
layer, that has to be able to do IO by DMA anyway, so it has to look up 
the page translations in the page tables etc crazy sh*t.

So passing vmalloc'ed page addresses around to something that will 
eventually do a non-CPU-virtual thing on them is fundamentally insane. The 
vmalloc space is about CPU virtual addresses. Such concepts simpyl do not 
-exist- for some random block device.

> Now that I see Linus's complaint, I'm wondering if the issue is really
> about kernel virtual addresses (i.e., coming from vmalloc), and not a
> requirement for Real Pages (i.e., coming from the SLAB allocator as
> opposed to get_free_page).  And can this be documented someplace?  I
> tried looking at the bio documentation, and couldn't find anything
> definitive on the subject.

The whole "vmalloc is special" has always been true. If you want to 
treat vmalloc as normal memory, you need to look up the pages yourself. We 
have helpers for that (including helpers that populate vmalloc space from 
a page array to begin with - so you can _start_ from some array of pages 
and then lay them out virtually if you want to have a convenient CPU 
access to the array).

And this whole "vmalloc is about CPU virtual addresses" is so obviously 
and fundamentally true that I don't understand how anybody can ever be 
confused about it. The "v" in vmalloc is for "virtual" as in virtual 
memory.

Think of it like virtual user addresses. Does anybody really expect to be 
able to pass a random user address to the BIO layer?

And if you do, I would suggest that you get out of kernel programming 
pronto. You're a danger to society, and have a lukewarm IQ. I don't want 
you touching kernel code.

And no, I do _not_ want the BIO layer having to walk page tables. Not for 
vmalloc space, not for user virtual addresses.

(And don't tell me it already does. Maybe somebody sneaked it in past me, 
without me ever noticing. That wouldn't be an excuse, that would be just 
sad. Jesus wept)

			Linus
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On Thu, Dec 17, 2009 at 08:46:33AM -0800, Linus Torvalds wrote:
> The whole "vmalloc is special" has always been true. If you want to 
> treat vmalloc as normal memory, you need to look up the pages yourself. We 
> have helpers for that (including helpers that populate vmalloc space from 
> a page array to begin with - so you can _start_ from some array of pages 
> and then lay them out virtually if you want to have a convenient CPU 
> access to the array).

Which is exactly what the XFS code does.  Pages are allocated manually
and we store pointers to the page struct that later get added to the
bio.  But we access them through vmap (which I added exactly for this
reason back in 2002) for kernel accesses.  On all architectures with
sane caches things just work, but for parisc, arm and friends that have
virtually indexed caches we need to make sure to flush caches for this
different access.  The vmalloc linear address is not used for I/O
everywhere.

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On Thu, Dec 17, 2009 at 11:30:36AM -0500, tytso@mit.edu wrote:
> That's because apparently the iSCSI and DMA blocks assume that they
> have Real Pages (tm) passed to block I/O requests, and apparently XFS
> ran into problems when sending vmalloc'ed pages.  I don't know if this
> is a problem if we pass the bio layer addresses coming from the SLAB
> allocator, but oral tradition seems to indicate this is problematic,
> although no one has given me the full chapter and verse explanation
> about why this is so.

Actually at least iscsi now has a workaround for that by checking for
PageSlab.  Back when we deal with the XFS issue that check was only
available with debug options enabled.  I tried to sort it out by
agreeing with the block and iscsi folks that either

 a) we need to send down refcountable pages
 b) block drivers need to accept kmalloced pages

I could not get any afreement, and thus we stopped using the kmalloced
pages in XFS which was easy enough.  A bit later people fixed iscsi,
but we still don't have formal rules about what is acceptable to the
block layer.


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On Thu, Dec 17, 2009 at 12:10:25PM -0500, Christoph Hellwig wrote:
> On Thu, Dec 17, 2009 at 11:30:36AM -0500, tytso@mit.edu wrote:
> > That's because apparently the iSCSI and DMA blocks assume that they
> > have Real Pages (tm) passed to block I/O requests, and apparently XFS
> > ran into problems when sending vmalloc'ed pages.  I don't know if this
> > is a problem if we pass the bio layer addresses coming from the SLAB
> > allocator, but oral tradition seems to indicate this is problematic,
> > although no one has given me the full chapter and verse explanation
> > about why this is so.
> 
> Actually at least iscsi now has a workaround for that by checking for
> PageSlab.  Back when we deal with the XFS issue that check was only
> available with debug options enabled.  I tried to sort it out by
> agreeing with the block and iscsi folks that either
> 
>  a) we need to send down refcountable pages
>  b) block drivers need to accept kmalloced pages
> 
> I could not get any afreement, and thus we stopped using the kmalloced
> pages in XFS which was easy enough.  A bit later people fixed iscsi,
> but we still don't have formal rules about what is acceptable to the
> block layer.

It would be good to get some formal rules articulated.  Someone has
asserted that the AoE (ATA over Ethernet) driver will barf on
SLAB/kmalloc allocated memory.   True, false?

					- Ted
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On Thu, Dec 17, 2009 at 08:46:33AM -0800, Linus Torvalds wrote:
> kmalloc() memory should be ok. It's backed by "real pages". Doing the DMA 
> translations for such pages is trivial and fundamental.

Sure, but there's some rumors/oral traditions going around that some
block devices want bio address which are page aligned, because they
want to play some kind of refcounting game, and if you pass them a
kmalloc() memory, they will explode in some interesting and
entertaining way.  And it's Weird Shit(tm) (aka iSCSI, AoE) type
drivers, that most of us don't have access to, so just because it
works Just Fine on SATA doesn't mean anything.

And none of this is documented anywhere, which is frustrating as hell.
Just rumors that "if you do this, AoE/iSCSI will corrupt your file
systems".

    	    	    	       		       - Ted
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On Thu, 17 Dec 2009, Christoph Hellwig wrote:
>
> On Thu, Dec 17, 2009 at 08:46:33AM -0800, Linus Torvalds wrote:
> > The whole "vmalloc is special" has always been true. If you want to 
> > treat vmalloc as normal memory, you need to look up the pages yourself. We 
> > have helpers for that (including helpers that populate vmalloc space from 
> > a page array to begin with - so you can _start_ from some array of pages 
> > and then lay them out virtually if you want to have a convenient CPU 
> > access to the array).
> 
> Which is exactly what the XFS code does.  Pages are allocated manually
> and we store pointers to the page struct that later get added to the
> bio.

Hmm. The BIO interface that the patch-series changes (bio_map_kern) 
doesn't work that way. It takes a "buf, len" kind of thing. That's what 
I'm complaining about.

> But we access them through vmap (which I added exactly for this
> reason back in 2002) for kernel accesses.  On all architectures with
> sane caches things just work, but for parisc, arm and friends that have
> virtually indexed caches we need to make sure to flush caches for this
> different access.  The vmalloc linear address is not used for I/O
> everywhere.

Well, they clearly are _after_ this series, since that's what all those 
changes to __bio_map_kernel() and bio_map_kern_endio() are all about.

So I believe you when you say that XFS perhaps does everything right - I 
just think that the patch series in question actually makes things worse, 
exactly because it is starting to use virtual addresses.

I also think that the changes to bio_map_kernel() and bio_map_kern_endio() 
are not just "fundamentally ugly", I think they are made worse by the fact 
that it's not even done "right". You both flush the virtual caches before 
the IO and invalidate after - when the real pattern should be that you 
flush it before a write, and invalidate it after a read.

And I really think that would be all much more properly done at the 
_caller_ level, not by the BIO layer.

You must have some locking and allocation etc logic at the caller anyway, 
why doesn't _that_ level just do the flushing or invalidation?

I get the feeling that somebody decided that the whole "do DMA to/from 
vmalloc space" was somehow a common generic pattern that should be 
supported in general, and I violently disagree. Maybe XFS has good reasons 
for doing it, but that does emphatically _not_ make it a good idea in 
general, and that does _not_ mean that the BIO layer should make it easy 
to do for other users and have a general interface for that kind of 
crazyness.

IOW, I'm perfectly happy with the patch to fs/xfs/linux-2.6/xfs_buf.c. 
That one still seems to use 'bio_add_page()' with a regular 'struct page'. 

But the fs/bio.c patch looks like just total and utter crap to me, and is 
the reason I refuse to pull this series.

				Linus

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On Thu, Dec 17, 2009 at 09:42:15AM -0800, Linus Torvalds wrote:
> > Which is exactly what the XFS code does.  Pages are allocated manually
> > and we store pointers to the page struct that later get added to the
> > bio.
> 
> Hmm. The BIO interface that the patch-series changes (bio_map_kern) 
> doesn't work that way. It takes a "buf, len" kind of thing. That's what 
> I'm complaining about.

Indeed, the "block: permit I/O to vmalloc/vmap kernel pages" does what
you complain about.  But the series doesn't actually add a user for
that.  What it does in XFS is quite a bit of black magic, too - but only
with the new cache coherence calls that are noops on architectures with
physically indexed caches.

> Well, they clearly are _after_ this series, since that's what all those 
> changes to __bio_map_kernel() and bio_map_kern_endio() are all about.
>
> So I believe you when you say that XFS perhaps does everything right - I 
> just think that the patch series in question actually makes things worse, 
> exactly because it is starting to use virtual addresses.

I'm not entirely sure why James added those, but XFS doesn't actually
use bio_map_kern.

> And I really think that would be all much more properly done at the 
> _caller_ level, not by the BIO layer.
>
> You must have some locking and allocation etc logic at the caller anyway, 
> why doesn't _that_ level just do the flushing or invalidation?

http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commitdiff;h=56c8214b842324e94aa88012010b0f1f9847daec

does it in the caller level.  Not exactly in a beautiful way, but who
am I complain as I'm already lost in our mess of cache coherency APIs.

> IOW, I'm perfectly happy with the patch to fs/xfs/linux-2.6/xfs_buf.c. 
> That one still seems to use 'bio_add_page()' with a regular 'struct page'. 
> 
> But the fs/bio.c patch looks like just total and utter crap to me, and is 
> the reason I refuse to pull this series.

Kyle/James, can you regenerate the tree without that patch included?

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On Thu, 17 Dec 2009, tytso@mit.edu wrote:
> 
> Sure, but there's some rumors/oral traditions going around that some
> block devices want bio address which are page aligned, because they
> want to play some kind of refcounting game,

Yeah, you might be right at that.

> And it's Weird Shit(tm) (aka iSCSI, AoE) type drivers, that most of us 
> don't have access to, so just because it works Just Fine on SATA doesn't 
> mean anything.
> 
> And none of this is documented anywhere, which is frustrating as hell.
> Just rumors that "if you do this, AoE/iSCSI will corrupt your file
> systems".

ACK. Jens? 

		Linus

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Cc: Christoph Hellwig <hch@infradead.org>, tytso@mit.edu,
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On Thu, Dec 17, 2009 at 09:42:15AM -0800, Linus Torvalds wrote:
> You both flush the virtual caches before 
> the IO and invalidate after - when the real pattern should be that you 
> flush it before a write, and invalidate it after a read.

That's not entirely true.  If you have write back caches which are not DMA
coherent, you need to as a minimum:

- on write, clean the cache to ensure that the page is up to date with data
  held in cache.

- on read, you must ensure that there are no potential write-backs before
  the read commenses and invalidate at some point.

The point at which you invalidate depends on whether the CPU speculatively
prefetches:

- If it doesn't, you can invalidate the cache before the read, thereby
  destroying any potential writebacks, and the cache will remain
  unallocated for that address range until explicitly accessed.

- If you do have a CPU which does prefetch speculatively, then you do
  need to clean the cache before DMA starts, and then you must invalidate
  after the DMA completes.

Invalidating after DMA completes for the non-speculative prefetch just
wastes performance, especially if you have to do so line by line over
a region.

With ARM architecture version 7, we now have ARM CPUs which fall into
both categories.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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On Thu, 17 Dec 2009, Russell King wrote:
> 
> That's not entirely true.  If you have write back caches which are not DMA
> coherent, you need to as a minimum:
> 
> - on write, clean the cache to ensure that the page is up to date with data
>   held in cache.
> 
> - on read, you must ensure that there are no potential write-backs before
>   the read commenses and invalidate at some point.

Right you are.

		Linus
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Christoph Hellwig <hch@infradead.org> writes:

> On Thu, Dec 17, 2009 at 11:30:36AM -0500, tytso@mit.edu wrote:
>> That's because apparently the iSCSI and DMA blocks assume that they
>> have Real Pages (tm) passed to block I/O requests, and apparently XFS
>> ran into problems when sending vmalloc'ed pages.  I don't know if this
>> is a problem if we pass the bio layer addresses coming from the SLAB
>> allocator, but oral tradition seems to indicate this is problematic,
>> although no one has given me the full chapter and verse explanation
>> about why this is so.
>
> Actually at least iscsi now has a workaround for that by checking for
> PageSlab.  Back when we deal with the XFS issue that check was only
> available with debug options enabled.  I tried to sort it out by
> agreeing with the block and iscsi folks that either

DRBD has the same workaround as well:

        if (disable_sendpage || (page_count(page) < 1) || PageSlab(page))

But it seems like a gross hack to me. Perhaps this should be 
passed as some sort of BIO attribute?

-Andi

-- 
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On 12/16/2009 10:35 PM, John David Anglin wrote:
>> On 12/15/2009 11:21 PM, John David Anglin wrote:
>>>> I have constructed a vfork test case which shows some of the problems
>>>> I have using vfork reliably. This fails every time on my PA8700 system
>>>> running 2.6.32-rc6. It appears as though r28 (ret0) in the parent is
>>>> being corrupted.
>>>
>>> The test doesn't fail on two of my builds:
>>> Linux mx3210 2.6.31.7 #5 Wed Dec 9 22:49:53 EST 2009 parisc64
>>> Linux hiauly6 2.6.31.7 #18 Wed Dec 9 21:34:36 EST 2009 parisc
>>
>> I did tested your testcase on my c3000 too but it didn't failed for me either.
>> This was on some 2.6.32-rc candidate.
>
> I think it must be because Carlos is building SMP kernels.

I couldn't reproduce on my SMP box either (but it's PA8500 instead of PA8700):
cpu             : PA8500 (PCX-W)
model           : 9000/785/J5000
Linux ls3017 2.6.32-32bit #79 SMP Thu Dec 3 14:04:53 CET 2009 parisc GNU/Linux

Helge
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On Thu, Dec 17 2009, Linus Torvalds wrote:
> 
> 
> On Thu, 17 Dec 2009, tytso@mit.edu wrote:
> > 
> > Sure, but there's some rumors/oral traditions going around that some
> > block devices want bio address which are page aligned, because they
> > want to play some kind of refcounting game,
> 
> Yeah, you might be right at that.
> 
> > And it's Weird Shit(tm) (aka iSCSI, AoE) type drivers, that most of us 
> > don't have access to, so just because it works Just Fine on SATA doesn't 
> > mean anything.
> > 
> > And none of this is documented anywhere, which is frustrating as hell.
> > Just rumors that "if you do this, AoE/iSCSI will corrupt your file
> > systems".
> 
> ACK. Jens? 

I've heard those rumours too, and I don't even know if they are true.
Who has a pointer to such a bug report and/or issue? The block layer
itself doesn't not have any such requirements, and the only places where
we play page games is for bio's that were explicitly mapped with pages
by itself (like mapping user data).o

We fix driver crap like that, we don't work around it. It's a BUG.

-- 
Jens Axboe

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Subject: Re: vfork test case.
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On Thu, Dec 17, 2009 at 2:12 PM, Helge Deller <deller@gmx.de> wrote:
> I couldn't reproduce on my SMP box either (but it's PA8500 instead of
> PA8700):
> cpu =A0 =A0 =A0 =A0 =A0 =A0 : PA8500 (PCX-W)
> model =A0 =A0 =A0 =A0 =A0 : 9000/785/J5000
> Linux ls3017 2.6.32-32bit #79 SMP Thu Dec 3 14:04:53 CET 2009 parisc
> GNU/Linux

Thanks Helge. This was a 64-bit box with SMP. It's possible part of
the 64-bit kernel is being incorrectly compiled.

I am not yet able to boot 2.6.32.

I'm getting problems in the initrd while waiting for /dev/sda1 to
appear, but it never does.

Once I resolve that I will see if the testcase works with 2.6.32.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:21 2018
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Hi Carlos,

On Sunday 06 December 2009 22:19:13 Carlos O'Donell wrote:
> Kyle, James,
> 
> I have constructed a vfork test case which shows some of the problems
> I have using vfork reliably. This fails every time on my PA8700 system
> running 2.6.32-rc6. It appears as though r28 (ret0) in the parent is
> being corrupted.

this reminds me of a problem with vfork that I encountered some years ago. The 
problem as described in 
http://sourceware.org/ml/libc-alpha/2003-02/msg00042.html
was fixed for many architectures, but not for hppa as far as I remember. See 
also 
http://sourceware.org/ml/libc-hacker/2003-02/msg00015.html

I have no idea if this is related, but thought it won't hurt to mention this.

Berthold

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On Thu, Dec 17, 2009 at 4:40 PM, Berthold Gunreben <b.gunreben@web.de> wrote:
> Hi Carlos,
>
> On Sunday 06 December 2009 22:19:13 Carlos O'Donell wrote:
>> Kyle, James,
>>
>> I have constructed a vfork test case which shows some of the problems
>> I have using vfork reliably. This fails every time on my PA8700 system
>> running 2.6.32-rc6. It appears as though r28 (ret0) in the parent is
>> being corrupted.
>
> this reminds me of a problem with vfork that I encountered some years ago. The
> problem as described in
> http://sourceware.org/ml/libc-alpha/2003-02/msg00042.html
> was fixed for many architectures, but not for hppa as far as I remember. See
> also
> http://sourceware.org/ml/libc-hacker/2003-02/msg00015.html
>
> I have no idea if this is related, but thought it won't hurt to mention this.

That has to do with the assembly not checking the pthread function
lookup table to determine if it should call vfork or pthread's vfork.

In my test case there are no pthread functions calls.

Thanks for the pointer, the fix you point out is no longer needed in nptl.

Cheers,
Carlos.
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Cc: Linus Torvalds <torvalds@linux-foundation.org>, tytso@mit.edu,
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On Thu, 2009-12-17 at 20:36 +0100, Jens Axboe wrote:
> On Thu, Dec 17 2009, Linus Torvalds wrote:
> > 
> > 
> > On Thu, 17 Dec 2009, tytso@mit.edu wrote:
> > > 
> > > Sure, but there's some rumors/oral traditions going around that some
> > > block devices want bio address which are page aligned, because they
> > > want to play some kind of refcounting game,
> > 
> > Yeah, you might be right at that.
> > 
> > > And it's Weird Shit(tm) (aka iSCSI, AoE) type drivers, that most of us 
> > > don't have access to, so just because it works Just Fine on SATA doesn't 
> > > mean anything.
> > > 
> > > And none of this is documented anywhere, which is frustrating as hell.
> > > Just rumors that "if you do this, AoE/iSCSI will corrupt your file
> > > systems".
> > 
> > ACK. Jens? 
> 
> I've heard those rumours too, and I don't even know if they are true.
> Who has a pointer to such a bug report and/or issue? The block layer
> itself doesn't not have any such requirements, and the only places where
> we play page games is for bio's that were explicitly mapped with pages
> by itself (like mapping user data).o

OK, so what happened is that prior to the map single fix

commit df46b9a44ceb5af2ea2351ce8e28ae7bd840b00f
Author: Mike Christie  <michaelc@cs.wisc.edu>
Date:   Mon Jun 20 14:04:44 2005 +0200

    [PATCH] Add blk_rq_map_kern()


bio could only accept user space buffers, so we had a special path for
kernel allocated buffers.  That commit unified the path (with a separate
block API) so we could now submit kmalloc'd buffers via block APIs.

So the rule now is we can accept any user mapped area via
blk_rq_map_user and any kmalloc'd area via blk_rq_map_kern().  We might
not be able to do a stack area (depending on how the arch maps the
stack) and we definitely cannot do a vmalloc'd area.

So it sounds like we only need a blk_rq_map_vmalloc() using the same
techniques as the patch set and we're good to go.

> We fix driver crap like that, we don't work around it. It's a BUG.

James



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Subject: Re: [git patches] xfs and block fixes for virtually indexed arches
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On Thu, 17 Dec 2009 12:39:57 -0500
tytso@mit.edu wrote:

> On Thu, Dec 17, 2009 at 08:46:33AM -0800, Linus Torvalds wrote:
> > kmalloc() memory should be ok. It's backed by "real pages". Doing the DMA 
> > translations for such pages is trivial and fundamental.
> 
> Sure, but there's some rumors/oral traditions going around that some
> block devices want bio address which are page aligned, because they
> want to play some kind of refcounting game, and if you pass them a
> kmalloc() memory, they will explode in some interesting and
> entertaining way.  And it's Weird Shit(tm) (aka iSCSI, AoE) type
> drivers, that most of us don't have access to, so just because it
> works Just Fine on SATA doesn't mean anything.

iSCSI initiator driver should work with kmalloc'ed memory.

The reason why iSCSI didn't work with kmalloc'ed memory is that it
uses sendpage (which needs refcountable pages). We added a workaround
to not use sendpage with kmalloc'ed memory (it would be great if we
remove the workaround though).

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Subject: Re: [git patches] xfs and block fixes for virtually indexed arches
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On Fri, 18 Dec 2009 00:57:00 +0100
James Bottomley <James.Bottomley@suse.de> wrote:

> On Thu, 2009-12-17 at 20:36 +0100, Jens Axboe wrote:
> > On Thu, Dec 17 2009, Linus Torvalds wrote:
> > > 
> > > 
> > > On Thu, 17 Dec 2009, tytso@mit.edu wrote:
> > > > 
> > > > Sure, but there's some rumors/oral traditions going around that some
> > > > block devices want bio address which are page aligned, because they
> > > > want to play some kind of refcounting game,
> > > 
> > > Yeah, you might be right at that.
> > > 
> > > > And it's Weird Shit(tm) (aka iSCSI, AoE) type drivers, that most of us 
> > > > don't have access to, so just because it works Just Fine on SATA doesn't 
> > > > mean anything.
> > > > 
> > > > And none of this is documented anywhere, which is frustrating as hell.
> > > > Just rumors that "if you do this, AoE/iSCSI will corrupt your file
> > > > systems".
> > > 
> > > ACK. Jens? 
> > 
> > I've heard those rumours too, and I don't even know if they are true.
> > Who has a pointer to such a bug report and/or issue? The block layer
> > itself doesn't not have any such requirements, and the only places where
> > we play page games is for bio's that were explicitly mapped with pages
> > by itself (like mapping user data).o
> 
> OK, so what happened is that prior to the map single fix
> 
> commit df46b9a44ceb5af2ea2351ce8e28ae7bd840b00f
> Author: Mike Christie  <michaelc@cs.wisc.edu>
> Date:   Mon Jun 20 14:04:44 2005 +0200
> 
>     [PATCH] Add blk_rq_map_kern()
> 
> 
> bio could only accept user space buffers, so we had a special path for
> kernel allocated buffers.  That commit unified the path (with a separate
> block API) so we could now submit kmalloc'd buffers via block APIs.
> 
> So the rule now is we can accept any user mapped area via
> blk_rq_map_user and any kmalloc'd area via blk_rq_map_kern().  We might
> not be able to do a stack area (depending on how the arch maps the
> stack) and we definitely cannot do a vmalloc'd area.
> 
> So it sounds like we only need a blk_rq_map_vmalloc() using the same
> techniques as the patch set and we're good to go.

I'm not sure about it.

As I said before (when I was against this 'adding vmalloc support to
the block layer' stuff), are there potential users of this except for
XFS? Are there anyone who does such a thing now?

This API might be useful for only journaling file systems using log
formats that need large contiguous buffer. Sound like only XFS?

Even if we have some potential users, I'm not sure that supporting
vmalloc in the block layer officially is a good idea. IMO, it needs
too many tricks for generic code.

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Subject: Re: [git patches] xfs and block fixes for virtually indexed arches
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On Fri, Dec 18, 2009 at 10:00:21AM +0900, FUJITA Tomonori wrote:
> On Fri, 18 Dec 2009 00:57:00 +0100
> James Bottomley <James.Bottomley@suse.de> wrote:
> 
> > On Thu, 2009-12-17 at 20:36 +0100, Jens Axboe wrote:
> > > On Thu, Dec 17 2009, Linus Torvalds wrote:
> > > > 
> > > > 
> > > > On Thu, 17 Dec 2009, tytso@mit.edu wrote:
> > > > > 
> > > > > Sure, but there's some rumors/oral traditions going around that some
> > > > > block devices want bio address which are page aligned, because they
> > > > > want to play some kind of refcounting game,
> > > > 
> > > > Yeah, you might be right at that.
> > > > 
> > > > > And it's Weird Shit(tm) (aka iSCSI, AoE) type drivers, that most of us 
> > > > > don't have access to, so just because it works Just Fine on SATA doesn't 
> > > > > mean anything.
> > > > > 
> > > > > And none of this is documented anywhere, which is frustrating as hell.
> > > > > Just rumors that "if you do this, AoE/iSCSI will corrupt your file
> > > > > systems".
> > > > 
> > > > ACK. Jens? 
> > > 
> > > I've heard those rumours too, and I don't even know if they are true.
> > > Who has a pointer to such a bug report and/or issue? The block layer
> > > itself doesn't not have any such requirements, and the only places where
> > > we play page games is for bio's that were explicitly mapped with pages
> > > by itself (like mapping user data).o
> > 
> > OK, so what happened is that prior to the map single fix
> > 
> > commit df46b9a44ceb5af2ea2351ce8e28ae7bd840b00f
> > Author: Mike Christie  <michaelc@cs.wisc.edu>
> > Date:   Mon Jun 20 14:04:44 2005 +0200
> > 
> >     [PATCH] Add blk_rq_map_kern()
> > 
> > 
> > bio could only accept user space buffers, so we had a special path for
> > kernel allocated buffers.  That commit unified the path (with a separate
> > block API) so we could now submit kmalloc'd buffers via block APIs.
> > 
> > So the rule now is we can accept any user mapped area via
> > blk_rq_map_user and any kmalloc'd area via blk_rq_map_kern().  We might
> > not be able to do a stack area (depending on how the arch maps the
> > stack) and we definitely cannot do a vmalloc'd area.
> > 
> > So it sounds like we only need a blk_rq_map_vmalloc() using the same
> > techniques as the patch set and we're good to go.
> 
> I'm not sure about it.
> 
> As I said before (when I was against this 'adding vmalloc support to
> the block layer' stuff), are there potential users of this except for
> XFS? Are there anyone who does such a thing now?

As Christoph already mentioned, XFS is not passing the vmalloc'd
range to the block layer - it passes the underlying pages to the
block layer. Hence I'm not sure there actually is anyone who is
passing vmalloc'd addresses to the block layer. Perhaps we should
put a WARN_ON() in the block layer to catch anyone doing such a
thing before considering supporting vmalloc'd addresses in the block
layer?

> This API might be useful for only journaling file systems using log
> formats that need large contiguous buffer. Sound like only XFS?

FWIW, mapped buffers larger than PAGE_SIZE are used for more than just log
recovery in XFS. e.g. filesystems with directory block size larger
than page size uses mapped buffers.

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com

From - Thu Nov 08 21:05:22 2018
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Subject: Re: [git patches] xfs and block fixes for virtually indexed arches
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On Fri, 18 Dec 2009 13:44:40 +1100
Dave Chinner <david@fromorbit.com> wrote:

> > > So it sounds like we only need a blk_rq_map_vmalloc() using the same
> > > techniques as the patch set and we're good to go.
> > 
> > I'm not sure about it.
> > 
> > As I said before (when I was against this 'adding vmalloc support to
> > the block layer' stuff), are there potential users of this except for
> > XFS? Are there anyone who does such a thing now?
> 
> As Christoph already mentioned, XFS is not passing the vmalloc'd
> range to the block layer

Oops, I should have said a vmalloc/vmap area.


> > This API might be useful for only journaling file systems using log
> > formats that need large contiguous buffer. Sound like only XFS?
> 
> FWIW, mapped buffers larger than PAGE_SIZE are used for more than just log
> recovery in XFS. e.g. filesystems with directory block size larger
> than page size uses mapped buffers.

I see, thanks.
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Subject: Re: [git patches] xfs and block fixes for virtually indexed arches
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To: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
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On Fri, 2009-12-18 at 10:00 +0900, FUJITA Tomonori wrote:
> On Fri, 18 Dec 2009 00:57:00 +0100
> James Bottomley <James.Bottomley@suse.de> wrote:
> 
> > On Thu, 2009-12-17 at 20:36 +0100, Jens Axboe wrote:
> > > On Thu, Dec 17 2009, Linus Torvalds wrote:
> > > > 
> > > > 
> > > > On Thu, 17 Dec 2009, tytso@mit.edu wrote:
> > > > > 
> > > > > Sure, but there's some rumors/oral traditions going around that some
> > > > > block devices want bio address which are page aligned, because they
> > > > > want to play some kind of refcounting game,
> > > > 
> > > > Yeah, you might be right at that.
> > > > 
> > > > > And it's Weird Shit(tm) (aka iSCSI, AoE) type drivers, that most of us 
> > > > > don't have access to, so just because it works Just Fine on SATA doesn't 
> > > > > mean anything.
> > > > > 
> > > > > And none of this is documented anywhere, which is frustrating as hell.
> > > > > Just rumors that "if you do this, AoE/iSCSI will corrupt your file
> > > > > systems".
> > > > 
> > > > ACK. Jens? 
> > > 
> > > I've heard those rumours too, and I don't even know if they are true.
> > > Who has a pointer to such a bug report and/or issue? The block layer
> > > itself doesn't not have any such requirements, and the only places where
> > > we play page games is for bio's that were explicitly mapped with pages
> > > by itself (like mapping user data).o
> > 
> > OK, so what happened is that prior to the map single fix
> > 
> > commit df46b9a44ceb5af2ea2351ce8e28ae7bd840b00f
> > Author: Mike Christie  <michaelc@cs.wisc.edu>
> > Date:   Mon Jun 20 14:04:44 2005 +0200
> > 
> >     [PATCH] Add blk_rq_map_kern()
> > 
> > 
> > bio could only accept user space buffers, so we had a special path for
> > kernel allocated buffers.  That commit unified the path (with a separate
> > block API) so we could now submit kmalloc'd buffers via block APIs.
> > 
> > So the rule now is we can accept any user mapped area via
> > blk_rq_map_user and any kmalloc'd area via blk_rq_map_kern().  We might
> > not be able to do a stack area (depending on how the arch maps the
> > stack) and we definitely cannot do a vmalloc'd area.
> > 
> > So it sounds like we only need a blk_rq_map_vmalloc() using the same
> > techniques as the patch set and we're good to go.
> 
> I'm not sure about it.
> 
> As I said before (when I was against this 'adding vmalloc support to
> the block layer' stuff), are there potential users of this except for
> XFS? Are there anyone who does such a thing now?
> 
> This API might be useful for only journaling file systems using log
> formats that need large contiguous buffer. Sound like only XFS?
> 
> Even if we have some potential users, I'm not sure that supporting
> vmalloc in the block layer officially is a good idea. IMO, it needs
> too many tricks for generic code.

So far, there's only xfs that I know of.

Given the way journalling works, it's not an unusual requirement to use
a large buffer for operations.  It's a bit of a waste of kernel
resources to have this physically contiguous, but it is a waste of
resources (and for buffers over our kmalloc max, it would even have to
be allocated at start of day), so I think large kernel virtual areas
(like vmap/vmalloc) have a part to play in fs operations.

As to the API, the specific problem is that the block and lower arch
layers are specifically programmed to think any kernel address has only
a single alias and that it's offset mapped, which is why we get the
failure.

An alternative proposal to modifying the block layer to do coherency,
might be simply to have the fs layer do a vunmap before doing I/O and
re-vmap when it's completed.  That would ensure the architecturally
correct flushing of the aliases, and would satisfy the expectations of
blk_rq_map_kern().  The down side is that vmap/vmalloc set up and clear
page tables, which isn't necessary and might impact performance (xfs
people?)

If the performance impact of the above is too great, then we might
introduce a vmalloc sync API to do the flush before and the invalidate
after (would have to be called twice, once before I/O and once after).
This is sort of a violation of our architectural knowledge layering,
since the user of a vmap/vmalloc area has to know intrinsically how to
handle I/O instead of having it just work(tm), but since the users are
few and specialised, it's not going to lead to too many coding problems.

Any opinions?

James



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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.kernel
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On Fri, 2009-12-18 at 13:44 +1100, Dave Chinner wrote:
> On Fri, Dec 18, 2009 at 10:00:21AM +0900, FUJITA Tomonori wrote:
> > On Fri, 18 Dec 2009 00:57:00 +0100
> > James Bottomley <James.Bottomley@suse.de> wrote:
> > 
> > > On Thu, 2009-12-17 at 20:36 +0100, Jens Axboe wrote:
> > > > On Thu, Dec 17 2009, Linus Torvalds wrote:
> > > > > 
> > > > > 
> > > > > On Thu, 17 Dec 2009, tytso@mit.edu wrote:
> > > > > > 
> > > > > > Sure, but there's some rumors/oral traditions going around that some
> > > > > > block devices want bio address which are page aligned, because they
> > > > > > want to play some kind of refcounting game,
> > > > > 
> > > > > Yeah, you might be right at that.
> > > > > 
> > > > > > And it's Weird Shit(tm) (aka iSCSI, AoE) type drivers, that most of us 
> > > > > > don't have access to, so just because it works Just Fine on SATA doesn't 
> > > > > > mean anything.
> > > > > > 
> > > > > > And none of this is documented anywhere, which is frustrating as hell.
> > > > > > Just rumors that "if you do this, AoE/iSCSI will corrupt your file
> > > > > > systems".
> > > > > 
> > > > > ACK. Jens? 
> > > > 
> > > > I've heard those rumours too, and I don't even know if they are true.
> > > > Who has a pointer to such a bug report and/or issue? The block layer
> > > > itself doesn't not have any such requirements, and the only places where
> > > > we play page games is for bio's that were explicitly mapped with pages
> > > > by itself (like mapping user data).o
> > > 
> > > OK, so what happened is that prior to the map single fix
> > > 
> > > commit df46b9a44ceb5af2ea2351ce8e28ae7bd840b00f
> > > Author: Mike Christie  <michaelc@cs.wisc.edu>
> > > Date:   Mon Jun 20 14:04:44 2005 +0200
> > > 
> > >     [PATCH] Add blk_rq_map_kern()
> > > 
> > > 
> > > bio could only accept user space buffers, so we had a special path for
> > > kernel allocated buffers.  That commit unified the path (with a separate
> > > block API) so we could now submit kmalloc'd buffers via block APIs.
> > > 
> > > So the rule now is we can accept any user mapped area via
> > > blk_rq_map_user and any kmalloc'd area via blk_rq_map_kern().  We might
> > > not be able to do a stack area (depending on how the arch maps the
> > > stack) and we definitely cannot do a vmalloc'd area.
> > > 
> > > So it sounds like we only need a blk_rq_map_vmalloc() using the same
> > > techniques as the patch set and we're good to go.
> > 
> > I'm not sure about it.
> > 
> > As I said before (when I was against this 'adding vmalloc support to
> > the block layer' stuff), are there potential users of this except for
> > XFS? Are there anyone who does such a thing now?
> 
> As Christoph already mentioned, XFS is not passing the vmalloc'd
> range to the block layer - it passes the underlying pages to the
> block layer. Hence I'm not sure there actually is anyone who is
> passing vmalloc'd addresses to the block layer. Perhaps we should
> put a WARN_ON() in the block layer to catch anyone doing such a
> thing before considering supporting vmalloc'd addresses in the block
> layer?

vmalloc is just an alias for vmap/vmalloc in the above statements
(basically anything with an additional kernel virtual mapping which
causes aliases).  If we support vmap, we naturally support vmalloc as
well.

> > This API might be useful for only journaling file systems using log
> > formats that need large contiguous buffer. Sound like only XFS?
> 
> FWIW, mapped buffers larger than PAGE_SIZE are used for more than just log
> recovery in XFS. e.g. filesystems with directory block size larger
> than page size uses mapped buffers.

However, XFS is the only fs that actually uses kernel virtual mapping to
solve this problem.

James



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Subject: Re: [git patches] xfs and block fixes for virtually indexed arches
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On Fri, 18 Dec 2009 08:08:48 +0100
James Bottomley <James.Bottomley@HansenPartnership.com> wrote:

> > Even if we have some potential users, I'm not sure that supporting
> > vmalloc in the block layer officially is a good idea. IMO, it needs
> > too many tricks for generic code.
> 
> So far, there's only xfs that I know of.
> 
> Given the way journalling works, it's not an unusual requirement to use
> a large buffer for operations.  It's a bit of a waste of kernel
> resources to have this physically contiguous, but it is a waste of
> resources (and for buffers over our kmalloc max, it would even have to
> be allocated at start of day), so I think large kernel virtual areas
> (like vmap/vmalloc) have a part to play in fs operations.

Yeah, but now only XFS passes vmap'ed pages to the block layer. Isn't
it better to wait until we have real users of the API?


> As to the API, the specific problem is that the block and lower arch
> layers are specifically programmed to think any kernel address has only
> a single alias and that it's offset mapped, which is why we get the
> failure.

Yeah, however we can make a rule that you can't pass a vmap area
(including vmap'ed pages) to the block layer. We can't make the rule
effective for the past so XFS is the only exception.


> An alternative proposal to modifying the block layer to do coherency,
> might be simply to have the fs layer do a vunmap before doing I/O and
> re-vmap when it's completed. 

I'm not sure it's worth making the whole block layer compatible to
vmap (adding complexity and possibly performance penalty).

If we really need to support this, I like helper APIs that the callers
must use before and after I/Os.


> That would ensure the architecturally
> correct flushing of the aliases, and would satisfy the expectations of
> blk_rq_map_kern().  The down side is that vmap/vmalloc set up and clear
> page tables, which isn't necessary and might impact performance (xfs
> people?)

btw, I'm not sure that the existing blk_rq_map_* API isn't fit well to
file systems since blk_rq_map_user and blk_rq_map_kern takes a request
structure.

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Subject: Re: [git patches] xfs and block fixes for virtually indexed arches
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On Fri, 2009-12-18 at 18:34 +0900, FUJITA Tomonori wrote:
> On Fri, 18 Dec 2009 08:08:48 +0100
> James Bottomley <James.Bottomley@HansenPartnership.com> wrote:
> 
> > > Even if we have some potential users, I'm not sure that supporting
> > > vmalloc in the block layer officially is a good idea. IMO, it needs
> > > too many tricks for generic code.
> > 
> > So far, there's only xfs that I know of.
> > 
> > Given the way journalling works, it's not an unusual requirement to use
> > a large buffer for operations.  It's a bit of a waste of kernel
> > resources to have this physically contiguous, but it is a waste of
> > resources (and for buffers over our kmalloc max, it would even have to
> > be allocated at start of day), so I think large kernel virtual areas
> > (like vmap/vmalloc) have a part to play in fs operations.
> 
> Yeah, but now only XFS passes vmap'ed pages to the block layer. Isn't
> it better to wait until we have real users of the API?

XFS is a real user ... the XFS filesystem is our most trusted code base
that can break the 8TB limit, which hard disks are already at.  Ext4 may
be ready, but it's not universally present in enterprise distros like
XFS.

> > As to the API, the specific problem is that the block and lower arch
> > layers are specifically programmed to think any kernel address has only
> > a single alias and that it's offset mapped, which is why we get the
> > failure.
> 
> Yeah, however we can make a rule that you can't pass a vmap area
> (including vmap'ed pages) to the block layer. We can't make the rule
> effective for the past so XFS is the only exception.

We need something that works for XFS.  The next proposal works for the
current block API because the vunmap makes the xfs pages look like
standard kernel pages, which blk_rq_map_kern() will process correctly.

But, in principle, I think whatever fix is chosen, we shouldn't
necessarily discourage others from using it.

> > An alternative proposal to modifying the block layer to do coherency,
> > might be simply to have the fs layer do a vunmap before doing I/O and
> > re-vmap when it's completed. 
> 
> I'm not sure it's worth making the whole block layer compatible to
> vmap (adding complexity and possibly performance penalty).

This proposal has no block layer changes.  It just makes the XFS vmap
area look like a standard set of kernel pages ... with the overhead of
the page table manipulations on unmap and remap.

> If we really need to support this, I like helper APIs that the callers
> must use before and after I/Os.

If it's just this route, they already exist ... they're vmap and vunmap.

> > That would ensure the architecturally
> > correct flushing of the aliases, and would satisfy the expectations of
> > blk_rq_map_kern().  The down side is that vmap/vmalloc set up and clear
> > page tables, which isn't necessary and might impact performance (xfs
> > people?)
> 
> btw, I'm not sure that the existing blk_rq_map_* API isn't fit well to
> file systems since blk_rq_map_user and blk_rq_map_kern takes a request
> structure.

OK, so that was illustrative.  The meat of the change is at the bio
layer anyway (fss tend to speak bios).  But the point of *this*
particular proposal is that it requires no changes either in the blk_ or
bio_ routines.

James



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On Fri, 18 Dec 2009 11:01:29 +0100
James Bottomley <James.Bottomley@suse.de> wrote:

> > Yeah, but now only XFS passes vmap'ed pages to the block layer. Isn't
> > it better to wait until we have real users of the API?
> 
> XFS is a real user ... the XFS filesystem is our most trusted code base
> that can break the 8TB limit, which hard disks are already at.  Ext4 may
> be ready, but it's not universally present in enterprise distros like
> XFS.

XFS already has the own code to handle that, which works fine (with
your patchset except for 5/6 for the block layer). Not much motivation
for XFS to move to the generic API?


> > > That would ensure the architecturally
> > > correct flushing of the aliases, and would satisfy the expectations of
> > > blk_rq_map_kern().  The down side is that vmap/vmalloc set up and clear
> > > page tables, which isn't necessary and might impact performance (xfs
> > > people?)
> > 
> > btw, I'm not sure that the existing blk_rq_map_* API isn't fit well to
> > file systems since blk_rq_map_user and blk_rq_map_kern takes a request
> > structure.
> 
> OK, so that was illustrative.  The meat of the change is at the bio
> layer anyway (fss tend to speak bios).

Yeah, I think so, it's up to Jens to add new APIs for vmap there.

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On Fri, 2009-12-18 at 19:24 +0900, FUJITA Tomonori wrote:
> On Fri, 18 Dec 2009 11:01:29 +0100
> James Bottomley <James.Bottomley@suse.de> wrote:
> 
> > > Yeah, but now only XFS passes vmap'ed pages to the block layer. Isn't
> > > it better to wait until we have real users of the API?
> > 
> > XFS is a real user ... the XFS filesystem is our most trusted code base
> > that can break the 8TB limit, which hard disks are already at.  Ext4 may
> > be ready, but it's not universally present in enterprise distros like
> > XFS.
> 
> XFS already has the own code to handle that, which works fine (with
> your patchset except for 5/6 for the block layer). Not much motivation
> for XFS to move to the generic API?

Right, but it's for completeness.  If we decide to allow vmap buffers,
then only supporting them on certain paths is a recipe for confusion in
a year's time when someone assumes we support vmap buffers on all block
paths; a bit like the current confusion over what we support ....

> > > > That would ensure the architecturally
> > > > correct flushing of the aliases, and would satisfy the expectations of
> > > > blk_rq_map_kern().  The down side is that vmap/vmalloc set up and clear
> > > > page tables, which isn't necessary and might impact performance (xfs
> > > > people?)
> > > 
> > > btw, I'm not sure that the existing blk_rq_map_* API isn't fit well to
> > > file systems since blk_rq_map_user and blk_rq_map_kern takes a request
> > > structure.
> > 
> > OK, so that was illustrative.  The meat of the change is at the bio
> > layer anyway (fss tend to speak bios).
> 
> Yeah, I think so, it's up to Jens to add new APIs for vmap there.

Agreed.

James



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On Fri, Dec 18, 2009 at 08:08:48AM +0100, James Bottomley wrote:
> On Fri, 2009-12-18 at 10:00 +0900, FUJITA Tomonori wrote:
> An alternative proposal to modifying the block layer to do coherency,
> might be simply to have the fs layer do a vunmap before doing I/O and
> re-vmap when it's completed. 

I don't think that works for XFS as it stands. Unmapping across
IO would have to guarantee we remap the buffer at the same
address after IO because we currently assume that mapped address
of the buffer can't change while references are held on the buffer.
That seems like an awful lot of complexity compared to the few lines
of code in XFS and the arches needed to support this.

> That would ensure the architecturally
> correct flushing of the aliases, and would satisfy the expectations of
> blk_rq_map_kern().  The down side is that vmap/vmalloc set up and clear
> page tables, which isn't necessary and might impact performance (xfs
> people?)

We play lots of tricks in XFS to avoid mapping buffers when we can
because of the performance impact it has.  Nick Piggin's recent
work getting vmap to scale helped a lot, but it is still best to
avoid mapped buffers where possible.

> If the performance impact of the above is too great, then we might
> introduce a vmalloc sync API to do the flush before and the invalidate
> after (would have to be called twice, once before I/O and once after).
> This is sort of a violation of our architectural knowledge layering,
> since the user of a vmap/vmalloc area has to know intrinsically how to
> handle I/O instead of having it just work(tm), but since the users are
> few and specialised, it's not going to lead to too many coding problems.
> 
> Any opinions?

Personally I see nothing wrong with the original patch series. If
the block layer mods are contentious, then just drop that patch
until a real need is brought to life.

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com
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On Fri, Dec 18, 2009 at 09:21:30AM +0900, FUJITA Tomonori wrote:
> 
> iSCSI initiator driver should work with kmalloc'ed memory.
> 
> The reason why iSCSI didn't work with kmalloc'ed memory is that it
> uses sendpage (which needs refcountable pages). We added a workaround
> to not use sendpage with kmalloc'ed memory (it would be great if we
> remove the workaround though).

Well, with a patch that I plan to be pushing that we have general
agreement that it is a block device driver BUG not to accept
kmalloc'ed/SLAB allocated memory, is one where ext4 will use
kmalloc'ed/slab allocated memory on occasion when it needs to make
shadow copy of buffers for journalling purposes AND when the fs block
size is smaller than the page size.  (i.e., no more allocating a 16k
page when the fs block size is 4k).  So this won't happen all the
time; even if the case of a 16k Itanium system with 4k blocks, the
bulk of the data won't be sent via kmalloc'ed memory --- just some
critical metadata block and some data blocks that need to be escaped
when being written into the journal.

I do think we need to document that block device drivers are
_expected_ to be able to handle kmalloc'ed memory, and if they can't,
#1 they should do a BUG_ON instead of corrupting user's data, and #2,
if they do corrupt data, we should send the angry users with corrupted
file systems to bang at the doors of the block device authors.

					- Ted




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From - Thu Nov 08 21:05:23 2018
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Thu, Dec 17, 2009 at 09:42:15AM -0800, Linus Torvalds wrote:

> 
> I also think that the changes to bio_map_kernel() and bio_map_kern_endio() 
> are not just "fundamentally ugly", I think they are made worse by the fact 
> that it's not even done "right". You both flush the virtual caches before 
> the IO and invalidate after - when the real pattern should be that you 
> flush it before a write, and invalidate it after a read.
> 
> And I really think that would be all much more properly done at the 
> _caller_ level, not by the BIO layer.
> 
> You must have some locking and allocation etc logic at the caller anyway, 
> why doesn't _that_ level just do the flushing or invalidation?

And then there are certain types of caches that need invalidation before
_and_ after a DMA transaction as a workaround for a processor being
grossly abused in a system that it should not be used in.  Basically the
issue is that falsly speculated stores may dirty caches.

  Ralf
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From - Thu Nov 08 21:05:23 2018
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org
To: Carlos O'Donell <carlos@systemhalted.org>
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On Thu, Dec 17, 2009 at 03:39:02PM -0500, Carlos O'Donell wrote:
> On Thu, Dec 17, 2009 at 2:12 PM, Helge Deller <deller@gmx.de> wrote:
> > I couldn't reproduce on my SMP box either (but it's PA8500 instead =
of
> > PA8700):
> > cpu =A0 =A0 =A0 =A0 =A0 =A0 : PA8500 (PCX-W)
> > model =A0 =A0 =A0 =A0 =A0 : 9000/785/J5000
> > Linux ls3017 2.6.32-32bit #79 SMP Thu Dec 3 14:04:53 CET 2009 paris=
c
> > GNU/Linux
>=20
> Thanks Helge. This was a 64-bit box with SMP. It's possible part of
> the 64-bit kernel is being incorrectly compiled.
>=20
> I am not yet able to boot 2.6.32.
>=20
> I'm getting problems in the initrd while waiting for /dev/sda1 to
> appear, but it never does.

hrm..there is a module option to force SCSI Async scan to complete
before calling into user space. Perhaps that is the problem?

=46WIW, I've been moving all machine to "mount by Label" or UUID.

cheers,
grant


>=20
> Once I resolve that I will see if the testcase works with 2.6.32.
>=20
> Cheers,
> Carlos.
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From - Thu Nov 08 21:05:23 2018
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Subject: Re: [git patches] xfs and block fixes for virtually indexed arches
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On Fri, 18 Dec 2009 09:17:32 -0500
tytso@mit.edu wrote:

> On Fri, Dec 18, 2009 at 09:21:30AM +0900, FUJITA Tomonori wrote:
> > 
> > iSCSI initiator driver should work with kmalloc'ed memory.
> > 
> > The reason why iSCSI didn't work with kmalloc'ed memory is that it
> > uses sendpage (which needs refcountable pages). We added a workaround
> > to not use sendpage with kmalloc'ed memory (it would be great if we
> > remove the workaround though).
> 
> Well, with a patch that I plan to be pushing that we have general
> agreement that it is a block device driver BUG not to accept
> kmalloc'ed/SLAB allocated memory, is one where ext4 will use
> kmalloc'ed/slab allocated memory on occasion when it needs to make
> shadow copy of buffers for journalling purposes AND when the fs block
> size is smaller than the page size.  (i.e., no more allocating a 16k
> page when the fs block size is 4k).  So this won't happen all the
> time; even if the case of a 16k Itanium system with 4k blocks, the
> bulk of the data won't be sent via kmalloc'ed memory --- just some
> critical metadata block and some data blocks that need to be escaped
> when being written into the journal.

Actually, ext3 (jbd) sent kmalloc'ed buffer to the block layer for
frozen data. xfs also used kmalloc'ed buffer. Neither do now (so, as
you said above, jbd wastes some memory when the block size is not
equal to page size, I think).


> I do think we need to document that block device drivers are
> _expected_ to be able to handle kmalloc'ed memory,

Agreed.

Note that network block drivers (iSCSI, drbd, something else?) doesn't
play with page ref-counting. They want to use sendpage. The network
layer (sendpage) can't handle non-ref-counted pages. The best solution
for fs and network block drivers might be modifying sendpage to handle
such pages.

From - Thu Nov 08 21:05:23 2018
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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On Sat, 2009-12-19 at 18:33 +0000, Ralf Baechle wrote:
> On Thu, Dec 17, 2009 at 09:42:15AM -0800, Linus Torvalds wrote:
> 
> > 
> > I also think that the changes to bio_map_kernel() and bio_map_kern_endio() 
> > are not just "fundamentally ugly", I think they are made worse by the fact 
> > that it's not even done "right". You both flush the virtual caches before 
> > the IO and invalidate after - when the real pattern should be that you 
> > flush it before a write, and invalidate it after a read.
> > 
> > And I really think that would be all much more properly done at the 
> > _caller_ level, not by the BIO layer.
> > 
> > You must have some locking and allocation etc logic at the caller anyway, 
> > why doesn't _that_ level just do the flushing or invalidation?
> 
> And then there are certain types of caches that need invalidation before
> _and_ after a DMA transaction as a workaround for a processor being
> grossly abused in a system that it should not be used in.  Basically the
> issue is that falsly speculated stores may dirty caches.

Um, so that's just so wrong it doesn't even seem possible.  It would
mean that a speculation could make a line dirty while DMA was in
progress to the underlying memory.  There's always going to be a window
between the DMA completion and the software invalidation where the dirty
line could be flushed, thus corrupting the DMA transfer.

Hopefully steps have been taken to see that whoever thought this was a
good idea isn't still contributing to the gene pool?

James



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I recently update gsyprf11 to the latest debian testing.  I also
tried 2.6.32.2, first SMP, then UP because of /bin/sh segmentation
faults.

I think the /bin/sh segmentation faults are the vfork issue, but
the vfork testcases run successfully on the above.

My first attempt at running the GCC testsuite hung:

dave@gsyprf11:~/gcc-4.5/objdir$ ps -ef|grep dave|grep 18073
dave     18073 18064  2 Dec21 ?        00:11:07 expect -- /usr/share/dejagnu/runtest.exp --tool gfortran
dave     18091 18073  0 02:09 ?        00:00:00 [gfortran] <defunct>

dave@gsyprf11:~/gcc-4.5/objdir$ strace -p 18073
Process 18073 attached - interrupt to quit
futex(0x1c538, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
Process 18073 detached
dave@gsyprf11:~/gcc-4.5/objdir$ strace -p 18091
attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted

This is the backtrace for expect:

0x4039934c in __lll_lock_wait () from /lib/libpthread.so.0
(gdb) bt
#0  0x4039934c in __lll_lock_wait () from /lib/libpthread.so.0
#1  0x4038f9c4 in pthread_mutex_lock () from /lib/libpthread.so.0
#2  0x40b73008 in pthread_mutex_lock () from /lib/libc.so.6
#3  0x4085eeb8 in Tcl_WaitForEvent () from /usr/lib/libtcl8.5.so.0
#4  0x4081ccdc in Tcl_DoOneEvent () from /usr/lib/libtcl8.5.so.0
#5  0x4003d9c4 in exp_get_next_event () from /usr/lib/libexpect.so.5.44.1.14
#6  0x4001c6bc in expRead () from /usr/lib/libexpect.so.5.44.1.14
#7  0x4001eea0 in Exp_ExpectObjCmd () from /usr/lib/libexpect.so.5.44.1.14
...

This is just a guess but I would guess that the gfortran task either
didn't update the futex address, or is blocked from doing so.

libc6 is 2.10.2-2.

This is probably related to the long standing problem with expect
and tcl8.4 and later.  expect-tcl8.3 works better.

Any thoughts?

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Dec 22, 2009 at 10:03 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> I recently update gsyprf11 to the latest debian testing. =A0I also
> tried 2.6.32.2, first SMP, then UP because of /bin/sh segmentation
> faults.
>
> I think the /bin/sh segmentation faults are the vfork issue, but
> the vfork testcases run successfully on the above.

That's a shame, the testcase was pretty straight forward. I will try
to update the test case when I have my new kernel running.

> My first attempt at running the GCC testsuite hung:
> dave@gsyprf11:~/gcc-4.5/objdir$ strace -p 18073
> Process 18073 attached - interrupt to quit
> futex(0x1c538, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
> Process 18073 detached
> dave@gsyprf11:~/gcc-4.5/objdir$ strace -p 18091
> attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted
>
> This is the backtrace for expect:
>
> 0x4039934c in __lll_lock_wait () from /lib/libpthread.so.0
> (gdb) bt
> #0 =A00x4039934c in __lll_lock_wait () from /lib/libpthread.so.0
> #1 =A00x4038f9c4 in pthread_mutex_lock () from /lib/libpthread.so.0
> #2 =A00x40b73008 in pthread_mutex_lock () from /lib/libc.so.6
> #3 =A00x4085eeb8 in Tcl_WaitForEvent () from /usr/lib/libtcl8.5.so.0
> #4 =A00x4081ccdc in Tcl_DoOneEvent () from /usr/lib/libtcl8.5.so.0
> #5 =A00x4003d9c4 in exp_get_next_event () from /usr/lib/libexpect.so.=
5.44.1.14
> #6 =A00x4001c6bc in expRead () from /usr/lib/libexpect.so.5.44.1.14
> #7 =A00x4001eea0 in Exp_ExpectObjCmd () from /usr/lib/libexpect.so.5.=
44.1.14
> ...
>
> This is just a guess but I would guess that the gfortran task either
> didn't update the futex address, or is blocked from doing so.
>
> libc6 is 2.10.2-2.
>
> This is probably related to the long standing problem with expect
> and tcl8.4 and later. =A0expect-tcl8.3 works better.
>
> Any thoughts?

You should be looking for the thread (not process) that is supposed to
wake this thread up. It's a private futex, meaning it isn't going to
be shared with any other process. If it is shared, and the wakeup (or
pthread_mutex_unlock) is issued from another thread in another process
then it won't be seen by the thread in this process.

We might have an hppa specific glibc bug related to the futex private f=
lag.

The hppa lowlevellock.h is a copy of the generic version. Perhaps I
need to update our copy to get recent bug fixes from other targets.

Cheers,
Carlos.
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On Tue, Dec 22, 2009 at 11:48 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> Debian gdb 7.0 provides slightly different backtraces:
>
> (gdb) bt
> #0 =A00x4039934c in __lll_lock_wait (futex=3D0x1c538,
> =A0 =A0private=3D<value optimized out>)
> ...
>
> and
>
> (gdb) bt
> #0 =A00x4038f92c in __lll_mutex_lock (mutex=3D0x1c538)

Any idea why both threads would try to lock the same mutex? This is
never going to work?

I think we need to step back from the edge and ask ourselves what
Tcl_WaitForEvent() is trying to do with the locks.

Do you know?

Cheers,
Carlos.
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> I think we need to step back from the edge and ask ourselves what
> Tcl_WaitForEvent() is trying to do with the locks.
> 
> Do you know?

In unix/tclUnixNotify.c:

#ifdef TCL_THREADS
    /*
     * Place this thread on the list of interested threads, signal the
     * notifier thread, and wait for a response or a timeout.
     */

    Tcl_MutexLock(&notifierMutex);
    ...
#endif

    ...

#ifdef TCL_THREADS
    Tcl_MutexUnlock(&notifierMutex);
#endif /* TCL_THREADS */
    return 0;
}

There may be a timed wait while holding the lock.  Something is broken
in the tcl/expect handling of timed waits as there were a couple of
compile timeouts for compilations that shouldn't have timed out.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: wire up sys_recvmmsg
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index cda1583..ee63634 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -811,8 +811,9 @@
 #define __NR_pwritev		(__NR_Linux + 316)
 #define __NR_rt_tgsigqueueinfo	(__NR_Linux + 317)
 #define __NR_perf_event_open	(__NR_Linux + 318)
+#define __NR_recvmmsg		(__NR_Linux + 319)
 
-#define __NR_Linux_syscalls	(__NR_perf_event_open + 1)
+#define __NR_Linux_syscalls	(__NR_recvmmsg + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 01c4fcf..a0c54cf 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -417,6 +417,7 @@
 	ENTRY_COMP(pwritev)
 	ENTRY_COMP(rt_tgsigqueueinfo)
 	ENTRY_SAME(perf_event_open)
+	ENTRY_COMP(recvmmsg)
 
 	/* Nothing yet */
 
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: add strict copy size checks
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Add CONFIG_DEBUG_STRICT_USER_COPY_CHECKS, copied from the x86
implementation.

Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -12,4 +12,18 @@ config DEBUG_RODATA
          portion of the kernel code won't be covered by a TLB anymore.
          If in doubt, say "N".
 
+config DEBUG_STRICT_USER_COPY_CHECKS
+	bool "Strict copy size checks"
+	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
+	---help---
+	  Enabling this option turns a certain set of sanity checks for user
+	  copy operations into compile time failures.
+
+	  The copy_from_user() etc checks are there to help test if there
+	  are sufficient security checks on the length argument of
+	  the copy operation, by having gcc prove that the argument is
+	  within bounds.
+
+	  If unsure, or if you run an older (pre 4.4) gcc, say N.
+
 endmenu
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -7,6 +7,7 @@
 #include <asm/page.h>
 #include <asm/system.h>
 #include <asm/cache.h>
+#include <asm/errno.h>
 #include <asm-generic/uaccess-unaligned.h>
 
 #define VERIFY_READ 0
@@ -234,13 +235,35 @@ extern long lstrnlen_user(const char __user *,long);
 
 unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len);
 #define __copy_to_user copy_to_user
-unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len);
-#define __copy_from_user copy_from_user
+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long len);
 unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len);
 #define __copy_in_user copy_in_user
 #define __copy_to_user_inatomic __copy_to_user
 #define __copy_from_user_inatomic __copy_from_user
 
+extern void copy_from_user_overflow(void)
+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+        __compiletime_error("copy_from_user() buffer size is not provably correct")
+#else
+        __compiletime_warning("copy_from_user() buffer size is not provably correct")
+#endif
+;
+
+static inline unsigned long __must_check copy_from_user(void *to,
+                                          const void __user *from,
+                                          unsigned long n)
+{
+        int sz = __compiletime_object_size(to);
+        int ret = -EFAULT;
+
+        if (likely(sz == -1 || sz >= n))
+                ret = __copy_from_user(to, from, n);
+        else
+                copy_from_user_overflow();
+
+        return ret;
+}
+
 struct pt_regs;
 int fixup_exception(struct pt_regs *regs);
 
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -475,7 +475,8 @@ unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len)
 	return pa_memcpy((void __force *)dst, src, len);
 }
 
-unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len)
+EXPORT_SYMBOL(__copy_from_user);
+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long len)
 {
 	mtsp(get_user_space(), 1);
 	mtsp(get_kernel_space(), 2);

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On 12/22/2009 11:56 PM, Helge Deller wrote:
> Add CONFIG_DEBUG_STRICT_USER_COPY_CHECKS, copied from the x86
> implementation.
> [...PATCH...]

Kyle,

please don't apply yet.
It will break the 64bit build.
Nevertheless, it brings up some code areas which would need
investigation...

Helge
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From: john stultz <johnstul@us.ibm.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [RFC][PATCH 12/14] Convert parisc to read/update_persistent_clock
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This patch converts the parisc architecture to use the generic
read_persistent_clock and update_persistent_clock interfaces, reducing
the amount of arch specific code we have to maintain, and allowing for
further cleanups in the future.

I have not built or tested this patch, so help from arch maintainers
would be appreciated.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
---
 time.c |   29 +++++++++++++----------------
 1 file changed, 13 insertions(+), 16 deletions(-)

Index: gettimeoffset/arch/parisc/kernel/time.c
===================================================================
--- gettimeoffset.orig/arch/parisc/kernel/time.c	2009-12-22 18:50:55.000000000 -0800
+++ gettimeoffset/arch/parisc/kernel/time.c	2009-12-22 18:51:06.000000000 -0800
@@ -250,9 +250,21 @@ static int __init rtc_init(void)
 }
 module_init(rtc_init);
 
-void __init time_init(void)
+void read_persistent_clock(struct timespec *ts)
 {
 	static struct pdc_tod tod_data;
+	if (pdc_tod_read(&tod_data) == 0) {
+		ts->tv_sec = tod_data.tod_sec;
+		ts->tv_nsec = tod_data.tod_usec * 1000;
+	} else {
+		printk(KERN_ERR "Error reading tod clock\n");
+	        ts->tv_sec = 0;
+		ts->tv_nsec = 0;
+	}
+}
+
+void __init time_init(void)
+{
 	unsigned long current_cr16_khz;
 
 	clocktick = (100 * PAGE0->mem_10msec) / HZ;
@@ -264,19 +276,4 @@ void __init time_init(void)
 	clocksource_cr16.mult = clocksource_khz2mult(current_cr16_khz,
 						clocksource_cr16.shift);
 	clocksource_register(&clocksource_cr16);
-
-	if (pdc_tod_read(&tod_data) == 0) {
-		unsigned long flags;

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On Tue, Dec 22, 2009 at 4:29 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> It would seem to me we have deadlock. =A0Two threads trying to lock
> the same mutex. =A0One should win... =A0It may be the mutex was left
> locked by some other thread.

Yes, it was left locked by thread #2, which then tried to acquire it
again. See below.

> This is the mutex:
>
> (gdb) p *mutex
> $1 =3D {__data =3D {__lock =3D 2, __count =3D 0, __owner =3D 18093, _=
_kind =3D 0,
> =A0 =A0__compat_padding =3D {0, 0, 0, 0}, __nusers =3D 1, {__spins =3D=
 0, __list =3D {
> =A0 =A0__next =3D 0x0}}, __reserved1 =3D 0, __reserved2 =3D 0},
> =A0 =A0__size =3D "\000\000\000\002\000\000\000\000\000\000F\255", '\=
000' <repeats 23 times>, "\001", '\000' <repeats 11 times>, __align =3D=
 2}

The __nusers field indicates that one user, namely __owner tid 18093
has already taken the lock.

The mutex owner is thread #2 in your example (tid shown in your backtra=
ce).

Thread #2 is also trying to lock the mutex again and is deadlocked.

The mutex is the default __kind of PTHREAD_MUTEX_TIMED_NP, but that
doesn't mean it's timed, only that it supports a timed lock, if you
call it using pthread_mutex_lock it will lock just like any other
mutex.

The lock value is 2, which indicates a private lock. Your backtrace
indicates you have called __lll_lock_wait_private, which is correct
for this case.

Under what conditions would thread #2 have a chance to try take it's
own lock again?

> It's hard to see what's happening because I don't seem to be able to
> single step the threads.

Yeah, there are some gdb/ptrace issues I need to sort out for the
newly minted nptl support.

>>
>> I think we need to step back from the edge and ask ourselves what
>> Tcl_WaitForEvent() is trying to do with the locks.
>>
>> Do you know?
>
> No. =A0Note thread 2 called pthread_mutex_lock from a different locat=
ion.

We need to determine under what conditions thread #2 would be able to
take the lock again and deadlock.

Cheers,
Carlos.
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On Tue, Dec 22, 2009 at 5:05 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> I think we need to step back from the edge and ask ourselves what
>> Tcl_WaitForEvent() is trying to do with the locks.
>>
>> Do you know?
>
> In unix/tclUnixNotify.c:
>
> #ifdef TCL_THREADS
> =A0 =A0/*
> =A0 =A0 * Place this thread on the list of interested threads, signal=
 the
> =A0 =A0 * notifier thread, and wait for a response or a timeout.
> =A0 =A0 */

There will never be a timeout if you call pthread_mutex_lock as the
underlying operation. So this comment is a bit odd?

> =A0 =A0Tcl_MutexLock(&notifierMutex);
> =A0 =A0...
> #endif
>
> =A0 =A0...
>
> #ifdef TCL_THREADS
> =A0 =A0Tcl_MutexUnlock(&notifierMutex);
> #endif /* TCL_THREADS */
> =A0 =A0return 0;
> }
>
> There may be a timed wait while holding the lock. =A0Something is bro=
ken
> in the tcl/expect handling of timed waits as there were a couple of
> compile timeouts for compilations that shouldn't have timed out.

There is no timed wait possible, you have called pthread_mutex_lock,
instead of pthread_mutex_timedlock.

What are Tcl's expectations here? It looks like we are stuck in
libtcl.so for both threads, which are trying to access this event
queue.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:24 2018
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On Wed, 23 Dec 2009, Carlos O'Donell wrote:

> On Tue, Dec 22, 2009 at 5:05 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> >> I think we need to step back from the edge and ask ourselves what
> >> Tcl_WaitForEvent() is trying to do with the locks.
> >>
> >> Do you know?
> >
> > In unix/tclUnixNotify.c:
> >
> > #ifdef TCL_THREADS
> > =A0 =A0/*
> > =A0 =A0 * Place this thread on the list of interested threads, sign=
al the
> > =A0 =A0 * notifier thread, and wait for a response or a timeout.
> > =A0 =A0 */
>=20
> There will never be a timeout if you call pthread_mutex_lock as the
> underlying operation. So this comment is a bit odd?

The wait is done by Tcl_ConditionWait.  It uses  pthread_cond_wait
if timePtr is NULL, otherwise it uses
pthread_cond_timedwait(pcondPtr, pmutexPtr, &ptime).  Do these work
holding a lock?  Any chance that these try to take a lock?

It sems like bad coding to do a wait holding a lock.  In any case,
I don't think this is the problem.

As you noted, the lock is held by the other thread.  The return pc is
beyond Tcl_WaitForEvent.  The only users of the notifierMutex mutex
are in tclUnixNotfy.c.  The only interesting thing done holding the
notifierMutex mutex in code after Tcl_WaitForEvent is to call
Tcl_ConditionNotify.  It calls pthread_cond_broadcast if the condition
pointer isn't NULL.

Could this deadlock?  It's hard to see how it could since the mutex
doesn't seem to be involved.

Dave
--=20
J. David Anglin                                  dave.anglin@nrc-cnrc.g=
c.ca
National Research Council of Canada              (613) 990-0752 (FAX: 9=
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From - Thu Nov 08 21:05:24 2018
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Subject: Re: futex wait failure
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On Wed, 23 Dec 2009, John David Anglin wrote:

> As you noted, the lock is held by the other thread.  The return pc is
> beyond Tcl_WaitForEvent.  The only users of the notifierMutex mutex
> are in tclUnixNotfy.c.  The only interesting thing done holding the
> notifierMutex mutex in code after Tcl_WaitForEvent is to call
> Tcl_ConditionNotify.  It calls pthread_cond_broadcast if the condition
> pointer isn't NULL.
> 
> Could this deadlock?  It's hard to see how it could since the mutex
> doesn't seem to be involved.

Actually, I see that the mutex and futex are part of the pthread_cond_t
type, so pthread_cond_broadcast could deadlock if not implemented properly.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: futex wait failure
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On Wed, Dec 23, 2009 at 11:15 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> There will never be a timeout if you call pthread_mutex_lock as the
>> underlying operation. So this comment is a bit odd?
>
> The wait is done by Tcl_ConditionWait. =A0It uses =A0pthread_cond_wai=
t
> if timePtr is NULL, otherwise it uses
> pthread_cond_timedwait(pcondPtr, pmutexPtr, &ptime). =A0Do these work
> holding a lock? =A0Any chance that these try to take a lock?

When you call pthread_cond_timedwait you must be holding pmutexPtr.

The call to pthread_cond_timedwait atomically release mutex and cause
the calling thread to sleep on the condition variable cond; atomically
here means "atomically with respect to access by another thread to
the mutex and then the condition variable". Once awoken by a broadcast,
it retakes the mutex pmutexPtr.

The glibc implementation with futexes reads pretty much exactly like
the description here:
http://www.opengroup.org/onlinepubs/000095399/functions/pthread_cond_ti=
medwait.html

> It sems like bad coding to do a wait holding a lock. =A0In any case,
> I don't think this is the problem.

You shouldn't be holding a lock while waiting. The call to
pthread_cond_timedwait
should have released the mutex before sleeping.

> As you noted, the lock is held by the other thread. =A0The return pc =
is
> beyond Tcl_WaitForEvent. =A0The only users of the notifierMutex mutex
> are in tclUnixNotfy.c. =A0The only interesting thing done holding the
> notifierMutex mutex in code after Tcl_WaitForEvent is to call
> Tcl_ConditionNotify. =A0It calls pthread_cond_broadcast if the condit=
ion
> pointer isn't NULL.
> Could this deadlock? =A0It's hard to see how it could since the mutex
> doesn't seem to be involved.

It shouldn't deadlock.

Is this a UP kernel?

Perhaps what I'm not clear about here, is which mutex is the one that
we are stuck on?

Are we stuck on the mutex we want to pass to pthread_cond_timedwait?

Cheers,
Carlos.
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From - Thu Nov 08 21:05:24 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: futex wait failure
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On Wed, 23 Dec 2009, John David Anglin wrote:

> On Wed, 23 Dec 2009, John David Anglin wrote:
> 
> > As you noted, the lock is held by the other thread.  The return pc is
> > beyond Tcl_WaitForEvent.  The only users of the notifierMutex mutex
> > are in tclUnixNotfy.c.  The only interesting thing done holding the
> > notifierMutex mutex in code after Tcl_WaitForEvent is to call
> > Tcl_ConditionNotify.  It calls pthread_cond_broadcast if the condition
> > pointer isn't NULL.
> > 
> > Could this deadlock?  It's hard to see how it could since the mutex
> > doesn't seem to be involved.
> 
> Actually, I see that the mutex and futex are part of the pthread_cond_t
> type, so pthread_cond_broadcast could deadlock if not implemented properly.

The deadlock occurs at the third call to Tcl_MutexLock in NotifierThreadProc
(tclUnixNotfy.c:997).  This is in a while(1) loop, so I have to think
the previous call to Tcl_MutexUnlock failed, possibly because of a call
to Tcl_ConditionNotify.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:24 2018
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On Wed, Dec 23, 2009 at 3:39 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> The deadlock occurs at the third call to Tcl_MutexLock in NotifierThr=
eadProc
> (tclUnixNotfy.c:997). =A0This is in a while(1) loop, so I have to thi=
nk
> the previous call to Tcl_MutexUnlock failed, possibly because of a ca=
ll
> to Tcl_ConditionNotify.

You might get a better idea if you run this under strace and look at
the futex syscalls being made. You won't see the locks since the fast
path is through the light-weight-syscall compare-and-swap, but you
will see the unlocks, and you can count them.

Cheers,
Carlos.
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On Wed, Dec 23, 2009 at 3:45 PM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> On Wed, Dec 23, 2009 at 3:39 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
>> The deadlock occurs at the third call to Tcl_MutexLock in NotifierTh=
readProc
>> (tclUnixNotfy.c:997). =A0This is in a while(1) loop, so I have to th=
ink
>> the previous call to Tcl_MutexUnlock failed, possibly because of a c=
all
>> to Tcl_ConditionNotify.
>
> You might get a better idea if you run this under strace and look at
> the futex syscalls being made. You won't see the locks since the fast
> path is through the light-weight-syscall compare-and-swap, but you
> will see the unlocks, and you can count them.

Sorry, let me be clearer here. The *first* lock is through the fast
path of the lws CAS operation. All subsequent locks take the form of a
futex wait. All subsequent unlocks are a futex wake.

Cheers,
Carlos.
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex wait failure
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On Wed, 23 Dec 2009, Carlos O'Donell wrote:

> On Wed, Dec 23, 2009 at 11:15 AM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> >> There will never be a timeout if you call pthread_mutex_lock as th=
e
> >> underlying operation. So this comment is a bit odd?
> >
> > The wait is done by Tcl_ConditionWait. =A0It uses =A0pthread_cond_w=
ait
> > if timePtr is NULL, otherwise it uses
> > pthread_cond_timedwait(pcondPtr, pmutexPtr, &ptime). =A0Do these wo=
rk
> > holding a lock? =A0Any chance that these try to take a lock?
>=20
> When you call pthread_cond_timedwait you must be holding pmutexPtr.
>=20
> The call to pthread_cond_timedwait atomically release mutex and cause
> the calling thread to sleep on the condition variable cond; atomicall=
y
> here means "atomically with respect to access by another thread to
> the mutex and then the condition variable". Once awoken by a broadcas=
t,
> it retakes the mutex pmutexPtr.
>=20
> The glibc implementation with futexes reads pretty much exactly like
> the description here:
> http://www.opengroup.org/onlinepubs/000095399/functions/pthread_cond_=
timedwait.html
>=20
> > It sems like bad coding to do a wait holding a lock. =A0In any case=
,
> > I don't think this is the problem.
>=20
> You shouldn't be holding a lock while waiting. The call to
> pthread_cond_timedwait
> should have released the mutex before sleeping.

No, the manpage for pthread_cond_wait and pthread_cond_timedwait
indicates that these calls atomically unlock the mutex, so the implemen=
tation
appears correct.  Before returning to the calling thread, they relock
the mutex.  So, the mutex shouldn't be held while the thread is
sleeping.

>=20
> > As you noted, the lock is held by the other thread. =A0The return p=
c is
> > beyond Tcl_WaitForEvent. =A0The only users of the notifierMutex mut=
ex
> > are in tclUnixNotfy.c. =A0The only interesting thing done holding t=
he
> > notifierMutex mutex in code after Tcl_WaitForEvent is to call
> > Tcl_ConditionNotify. =A0It calls pthread_cond_broadcast if the cond=
ition
> > pointer isn't NULL.
> > Could this deadlock? =A0It's hard to see how it could since the mut=
ex
> > doesn't seem to be involved.
>=20
> It shouldn't deadlock.
>=20
> Is this a UP kernel?

Yes.  This has now happened twice in one testsuite run.

> Perhaps what I'm not clear about here, is which mutex is the one that
> we are stuck on?

notifierMutex.  It controls all activities in tclUnixNotfy.c.

> Are we stuck on the mutex we want to pass to pthread_cond_timedwait?

Yes.

Dave
--=20
J. David Anglin                                  dave.anglin@nrc-cnrc.g=
c.ca
National Research Council of Canada              (613) 990-0752 (FAX: 9=
52-6602)
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: futex wait failure
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On Wed, 23 Dec 2009, Carlos O'Donell wrote:

> On Wed, Dec 23, 2009 at 3:39 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> > The deadlock occurs at the third call to Tcl_MutexLock in NotifierT=
hreadProc
> > (tclUnixNotfy.c:997). =A0This is in a while(1) loop, so I have to t=
hink
> > the previous call to Tcl_MutexUnlock failed, possibly because of a =
call
> > to Tcl_ConditionNotify.
>=20
> You might get a better idea if you run this under strace and look at
> the futex syscalls being made. You won't see the locks since the fast
> path is through the light-weight-syscall compare-and-swap, but you
> will see the unlocks, and you can count them.

I would guess that the notifierMutex is locked/unlocked millions of
time in a typical GCC testsuite run.  So, the problem won't be easy
to duplicate manually.

Dave
--=20
J. David Anglin                                  dave.anglin@nrc-cnrc.g=
c.ca
National Research Council of Canada              (613) 990-0752 (FAX: 9=
52-6602)
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From: James Bottomley <jejb@external.hp.com>

After looking through all the feedback, here's the next version of the
patch.

This one is based on a new api: flush/invalidate_kernel_vmap_range()
making it clear that the fs/driver is the entity managing the vmaps
... it also drops the block inputs because coherency management is now
the responsibility of the user.  The xfs interface is nicely
simplified with this approach.  Could someone check this on arm and
sh?

Thanks,

James

---

James Bottomley (5):
  mm: add coherence API for DMA to vmalloc/vmap areas
  parisc: add mm API for DMA to vmalloc/vmap areas
  arm: add mm API for DMA to vmalloc/vmap areas
  sh: add mm API for DMA to vmalloc/vmap areas
  xfs: fix xfs to work with Virtually Indexed architectures

 Documentation/cachetlb.txt           |   27 +++++++++++++++++++++++++++
 arch/arm/include/asm/cacheflush.h    |   10 ++++++++++
 arch/parisc/include/asm/cacheflush.h |   12 ++++++++++++
 arch/sh/include/asm/cacheflush.h     |    8 ++++++++
 fs/xfs/linux-2.6/xfs_buf.c           |   20 +++++++++++++++++++-
 include/linux/highmem.h              |    6 ++++++
 6 files changed, 82 insertions(+), 1 deletions(-)


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On Virtually Indexed architectures (which don't do automatic alias
resolution in their caches), we have to flush via the correct
virtual address to prepare pages for DMA.  On some architectures
(like arm) we cannot prevent the CPU from doing data movein along
the alias (and thus giving stale read data), so we not only have to
introduce a flush API to push dirty cache lines out, but also an invalidate
API to kill inconsistent cache lines that may have moved in before
DMA changed the data

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 Documentation/cachetlb.txt |   27 +++++++++++++++++++++++++++
 include/linux/highmem.h    |    6 ++++++
 2 files changed, 33 insertions(+), 0 deletions(-)

diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt
index da42ab4..a29129f 100644
--- a/Documentation/cachetlb.txt
+++ b/Documentation/cachetlb.txt
@@ -377,3 +377,30 @@ maps this page at its virtual address.
 	All the functionality of flush_icache_page can be implemented in
 	flush_dcache_page and update_mmu_cache. In 2.7 the hope is to
 	remove this interface completely.
+
+The final category of APIs is for I/O to deliberately aliased address
+ranges inside the kernel.  Such aliases are set up by use of the
+vmap/vmalloc API.  Since kernel I/O goes via physical pages, the I/O
+subsystem assumes that the user mapping and kernel offset mapping are
+the only aliases.  This isn't true for vmap aliases, so anything in
+the kernel trying to do I/O to vmap areas must manually manage
+coherency.  It must do this by flushing the vmap range before doing
+I/O and invalidating it after the I/O returns.
+
+  void flush_kernel_vmap_range(void *vaddr, int size)
+       flushes the kernel cache for a given virtual address range in
+       the vmap area.  This API makes sure that and data the kernel
+       modified in the vmap range is made visible to the physical
+       page.  The design is to make this area safe to perform I/O on.
+       Note that this API does *not* also flush the offset map alias
+       of the area.
+
+  void invalidate_kernel_vmap_range(void *vaddr, int size)
+       invalidates the kernel cache for a given virtual address range
+       in the vmap area.  This API is designed to make sure that while
+       I/O went on to an address range in the vmap area, the processor
+       didn't speculate cache reads and thus make the cache over the
+       virtual address stale.  Its implementation may be a nop if the
+       architecture guarantees never to speculate on flushed ranges
+       during I/O.
+
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 211ff44..adfe101 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -17,6 +17,12 @@ static inline void flush_anon_page(struct vm_area_struct *vma, struct page *page
 static inline void flush_kernel_dcache_page(struct page *page)
 {
 }
+static inline void flush_kernel_vmap_range(void *vaddr, int size)
+{
+}
+static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
+{
+}
 #endif
 
 #include <asm/kmap_types.h>
-- 
1.6.5

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From - Thu Nov 08 21:05:25 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCHv2 3/5] arm: add mm API for DMA to vmalloc/vmap areas
Date: Wed, 23 Dec 2009 15:22:23 -0600
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Cc: linux-parisc@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
	Russell King <rmk@arm.linux.org.uk>,
	Paul Mundt <lethal@linux-sh.org>,
	James Bottomley <James.Bottomley@suse.de>
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ARM cannot prevent cache movein, so this patch implements both the
flush and invalidate pieces of the API.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/arm/include/asm/cacheflush.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 730aefc..4ae503c 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -432,6 +432,16 @@ static inline void __flush_icache_all(void)
 	    : "r" (0));
 #endif
 }
+static inline void flush_kernel_vmap_range(void *addr, int size)
+{
+	if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+	  __cpuc_flush_dcache_area(addr, (size_t)size);
+}
+static inline void invalidate_kernel_vmap_range(void *addr, int size)
+{
+	if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+	  __cpuc_flush_dcache_area(addr, (size_t)size);
+}
 
 #define ARCH_HAS_FLUSH_ANON_PAGE
 static inline void flush_anon_page(struct vm_area_struct *vma,
-- 
1.6.5


From - Thu Nov 08 21:05:25 2018
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X-Mozilla-Keys:                                                                                 
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCHv2 5/5] xfs: fix xfs to work with Virtually Indexed architectures
Date: Wed, 23 Dec 2009 15:22:25 -0600
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Cc: linux-parisc@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
	Russell King <rmk@arm.linux.org.uk>,
	Paul Mundt <lethal@linux-sh.org>,
	James Bottomley <James.Bottomley@suse.de>
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xfs_buf.c includes what is essentially a hand rolled version of
blk_rq_map_kern().  In order to work properly with the vmalloc buffers
that xfs uses, this hand rolled routine must also implement the flushing
API for vmap/vmalloc areas.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 fs/xfs/linux-2.6/xfs_buf.c |   20 +++++++++++++++++++-
 1 files changed, 19 insertions(+), 1 deletions(-)

diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 77b8be8..4c77d96 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -76,6 +76,19 @@ struct workqueue_struct *xfsconvertd_workqueue;
 #define xfs_buf_deallocate(bp) \
 	kmem_zone_free(xfs_buf_zone, (bp));
 
+STATIC int
+xfs_bp_is_vmapped(
+	xfs_buf_t	*bp)
+{
+	/* return true if the buffer is vmapped. The XBF_MAPPED flag
+	 * is set if the buffer should be mapped, but the code is
+	 * clever enough to know it doesn't have to map a single page,
+	 * so the check has to be both for XBF_MAPPED and
+	 * bp->b_page_count > 1 */
+	return (bp->b_flags & XBF_MAPPED) && bp->b_page_count > 1;
+}
+
+
 /*
  *	Page Region interfaces.
  *
@@ -314,7 +327,7 @@ xfs_buf_free(
 	if (bp->b_flags & (_XBF_PAGE_CACHE|_XBF_PAGES)) {
 		uint		i;
 
-		if ((bp->b_flags & XBF_MAPPED) && (bp->b_page_count > 1))
+		if (xfs_bp_is_vmapped(bp))
 			free_address(bp->b_addr - bp->b_offset);
 
 		for (i = 0; i < bp->b_page_count; i++) {
@@ -1107,6 +1120,9 @@ xfs_buf_bio_end_io(
 
 	xfs_buf_ioerror(bp, -error);
 
+	if (!error && xfs_bp_is_vmapped(bp))
+		invalidate_kernel_vmap_range(bp->b_addr, (bp->b_page_count * PAGE_SIZE) - bp->b_offset);
+
 	do {
 		struct page	*page = bvec->bv_page;
 
@@ -1216,6 +1232,8 @@ next_chunk:
 
 submit_io:
 	if (likely(bio->bi_size)) {
+		if (xfs_bp_is_vmapped(bp))
+			flush_kernel_vmap_range(bp->b_addr, (bp->b_page_count * PAGE_SIZE) - bp->b_offset);
 		submit_bio(rw, bio);
 		if (size)
 			goto next_chunk;
-- 
1.6.5


From - Thu Nov 08 21:05:25 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: [PATCHv2 4/5] sh: add mm API for DMA to vmalloc/vmap areas
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Cc: linux-parisc@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
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To: linux-arch@vger.kernel.org
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Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/sh/include/asm/cacheflush.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index dda96eb..da3ebec 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -63,6 +63,14 @@ static inline void flush_anon_page(struct vm_area_struct *vma,
 	if (boot_cpu_data.dcache.n_aliases && PageAnon(page))
 		__flush_anon_page(page, vmaddr);
 }
+static inline void flush_kernel_vmap_range(void *addr, int size)
+{
+	__flush_wback_region(addr, size);
+}
+static inline void invalidate_kernel_vmap_range(void *addr, int size)
+{
+	__flush_invalidate_region(addr, size);
+}
 
 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
 static inline void flush_kernel_dcache_page(struct page *page)
-- 
1.6.5

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From - Thu Nov 08 21:05:25 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCHv2 2/5] parisc: add mm API for DMA to vmalloc/vmap areas
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Cc: linux-parisc@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
	Russell King <rmk@arm.linux.org.uk>,
	Paul Mundt <lethal@linux-sh.org>,
	James Bottomley <James.Bottomley@suse.de>
To: linux-arch@vger.kernel.org
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We already have an API to flush a kernel page along an alias
address, so use it.  The TLB purge prevents the CPU from doing
speculative moveins on the flushed address, so we don't need to
implement and invalidate.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/parisc/include/asm/cacheflush.h |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7a73b61..4772777 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -38,6 +38,18 @@ void flush_cache_mm(struct mm_struct *mm);
 
 #define flush_kernel_dcache_range(start,size) \
 	flush_kernel_dcache_range_asm((start), (start)+(size));
+/* vmap range flushes and invalidates.  Architecturally, we don't need
+ * the invalidate, because the CPU should refuse to speculate once an
+ * area has been flushed, so invalidate is left empty */
+static inline void flush_kernel_vmap_range(void *vaddr, int size)
+{
+	unsigned long start = (unsigned long)vaddr;
+
+	flush_kernel_dcache_range_asm(start, start + size);
+}
+static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
+{
+}
 
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
-- 
1.6.5


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On Wed, Dec 23, 2009 at 4:08 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> You might get a better idea if you run this under strace and look at
>> the futex syscalls being made. You won't see the locks since the fas=
t
>> path is through the light-weight-syscall compare-and-swap, but you
>> will see the unlocks, and you can count them.
>
> I would guess that the notifierMutex is locked/unlocked millions of
> time in a typical GCC testsuite run. =A0So, the problem won't be easy
> to duplicate manually.

You would be surprised how easy it is to duplicate some of these
problems. We need to write a small skeleton application that does
something similar to the notification done by tcl and uses
pthread_cond_timedwait. Setup main to run forever signaling the child
which does something and then goes back to waiting. Eventually this
should lock up like it does in tcl.

Cheers,
Carlos.
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> I have noticed that the notifierMutex mutex is initialized to all
> zeros (i.e., it's declared static).  Is this ok with our nptl implementation?

Forget this, it's done in Tcl_MutexLock.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: No drives come online in 2.6.32?
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When booting 2.6.32, my scsi drives don't come online, all I see during boot is:
~~~
sym53c8xx 0000:00:01.0: enabling device (0000 -> 0003)
sym53c8xx 0000:00:01.0: enabling SERR and PARITY (0003 -> 0143)
sym53c8xx 0000:00:01.1: enabling device (0000 -> 0003)
sym53c8xx 0000:00:01.1: enabling SERR and PARITY (0003 -> 0143)
sym53c8xx 0000:00:02.0: enabling device (0000 -> 0003)
sym53c8xx 0000:00:02.0: enabling SERR and PARITY (0003 -> 0143)
sym53c8xx 0000:00:02.1: enabling device (0146 -> 0147)
~~~
When booting 2.6.32-rc6 the drives come online right away after they
are enabled.

No amount of waiting helps.

Any clues?

Cheers,
Carlos.
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On Wed, Dec 23, 2009 at 5:18 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> I have noticed that the notifierMutex mutex is initialized to all
>> zeros (i.e., it's declared static). =A0Is this ok with our nptl impl=
ementation?
>
> Forget this, it's done in Tcl_MutexLock.

In NPTL the hppa locks are all zero. We no longer use
load-and-clear-word for anything in userspace.

Even the dynamic initialization will zero the lock.

We are just like every other architecture... with the exception that
we currently have more bugs :-)

Cheers,
Carlos.
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On Wed, Dec 23, 2009 at 9:19 PM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> When booting 2.6.32, my scsi drives don't come online, all I see during boot is:
> ~~~
> sym53c8xx 0000:00:01.0: enabling device (0000 -> 0003)
> sym53c8xx 0000:00:01.0: enabling SERR and PARITY (0003 -> 0143)
> sym53c8xx 0000:00:01.1: enabling device (0000 -> 0003)
> sym53c8xx 0000:00:01.1: enabling SERR and PARITY (0003 -> 0143)
> sym53c8xx 0000:00:02.0: enabling device (0000 -> 0003)
> sym53c8xx 0000:00:02.0: enabling SERR and PARITY (0003 -> 0143)
> sym53c8xx 0000:00:02.1: enabling device (0146 -> 0147)
> ~~~
> When booting 2.6.32-rc6 the drives come online right away after they
> are enabled.
>
> No amount of waiting helps.
>
> Any clues?

I've started bisecting the commits between 2.6.32-rc6 and 2.6.32 to
see what broke this for my setup.

Cheers,
Carlos.
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On Wed, Dec 23, 2009 at 03:22:21PM -0600, James Bottomley wrote:
> +
> +  void flush_kernel_vmap_range(void *vaddr, int size)
> +       flushes the kernel cache for a given virtual address range in
> +       the vmap area.  This API makes sure that and data the kernel

  	      	   	       	   	      	^^^ code and data?

> +  void invalidate_kernel_vmap_range(void *vaddr, int size)
> +       invalidates the kernel cache for a given virtual address range
> +       in the vmap area.  This API is designed to make sure that while
> +       I/O went on to an address range in the vmap area, the processor
> +       didn't speculate cache reads and thus make the cache over the
> +       virtual address stale.
> +

Could this sentence be reworked a little? I find the "over the virtual
address" part a little difficult to parse.
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Subject: Re: [PATCHv2 5/5] xfs: fix xfs to work with Virtually Indexed architectures
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On Wed, Dec 23, 2009 at 03:22:25PM -0600, James Bottomley wrote:
> xfs_buf.c includes what is essentially a hand rolled version of
> blk_rq_map_kern().  In order to work properly with the vmalloc buffers
> that xfs uses, this hand rolled routine must also implement the flushing
> API for vmap/vmalloc areas.
> 
> Signed-off-by: James Bottomley <James.Bottomley@suse.de>

Looks good except some minor style issues.  Fix in the version below
which also adds a helper to calculate the length of the vmap area
instead of calculating it twice.

---

From: James Bottomley <James.Bottomley@suse.de>
Subject: [PATCHv2 5/5] xfs: fix xfs to work with Virtually Indexed architectures

xfs_buf.c includes what is essentially a hand rolled version of
blk_rq_map_kern().  In order to work properly with the vmalloc buffers
that xfs uses, this hand rolled routine must also implement the flushing
API for vmap/vmalloc areas.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>

Index: linux-2.6/fs/xfs/linux-2.6/xfs_buf.c
===================================================================
--- linux-2.6.orig/fs/xfs/linux-2.6/xfs_buf.c	2009-12-17 08:05:53.962275389 +0100
+++ linux-2.6/fs/xfs/linux-2.6/xfs_buf.c	2009-12-24 11:59:02.031073134 +0100
@@ -76,6 +76,27 @@ struct workqueue_struct *xfsconvertd_wor
 #define xfs_buf_deallocate(bp) \
 	kmem_zone_free(xfs_buf_zone, (bp));
 
+static inline int
+xfs_buf_is_vmapped(
+	struct xfs_buf	*bp)
+{
+	/*
+	 * Return true if the buffer is vmapped.
+	 *
+	 * The XBF_MAPPED flag is set if the buffer should be mapped, but the
+	 * code is clever enough to know it doesn't have to map a single page,
+	 * so the check has to be both for XBF_MAPPED and bp->b_page_count > 1.
+	 */
+	return (bp->b_flags & XBF_MAPPED) && bp->b_page_count > 1;
+}
+
+static inline int
+xfs_buf_vmap_len(
+	struct xfs_buf	*bp)
+{
+	return (bp->b_page_count * PAGE_SIZE) - bp->b_offset;
+}
+
 /*
  *	Page Region interfaces.
  *
@@ -314,7 +335,7 @@ xfs_buf_free(
 	if (bp->b_flags & (_XBF_PAGE_CACHE|_XBF_PAGES)) {
 		uint		i;
 
-		if ((bp->b_flags & XBF_MAPPED) && (bp->b_page_count > 1))
+		if (xfs_buf_is_vmapped(bp))
 			free_address(bp->b_addr - bp->b_offset);
 
 		for (i = 0; i < bp->b_page_count; i++) {
@@ -1107,6 +1128,9 @@ xfs_buf_bio_end_io(
 
 	xfs_buf_ioerror(bp, -error);
 
+	if (!error && xfs_buf_is_vmapped(bp))
+		invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp));
+
 	do {
 		struct page	*page = bvec->bv_page;
 
@@ -1216,6 +1240,10 @@ next_chunk:
 
 submit_io:
 	if (likely(bio->bi_size)) {
+		if (xfs_buf_is_vmapped(bp)) {
+			flush_kernel_vmap_range(bp->b_addr,
+						xfs_buf_vmap_len(bp));
+		}
 		submit_bio(rw, bio);
 		if (size)
 			goto next_chunk;
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From - Thu Nov 08 21:05:26 2018
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Subject: Re: [PATCHv2 1/5] mm: add coherence API for DMA to vmalloc/vmap
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On Thu, Dec 24, 2009 at 10:08:53AM +0000, Matt Fleming wrote:
> On Wed, Dec 23, 2009 at 03:22:21PM -0600, James Bottomley wrote:
> > +
> > +  void flush_kernel_vmap_range(void *vaddr, int size)
> > +       flushes the kernel cache for a given virtual address range in
> > +       the vmap area.  This API makes sure that and data the kernel
> 
>   	      	   	       	   	      	^^^ code and data?

I'd guess it's a typo for 'any data'.

> > +  void invalidate_kernel_vmap_range(void *vaddr, int size)
> > +       invalidates the kernel cache for a given virtual address range
> > +       in the vmap area.  This API is designed to make sure that while
> > +       I/O went on to an address range in the vmap area, the processor
> > +       didn't speculate cache reads and thus make the cache over the
> > +       virtual address stale.
> > +
> 
> Could this sentence be reworked a little? I find the "over the virtual
> address" part a little difficult to parse.

How about:

invalidates the processor cache for a given virtual address range
in the vmap area.  This API addresses the problem that the processor
may have performed speculative reads into its cache of the vmapped
area while I/O was occurring to the underlying physical pages.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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From - Thu Nov 08 21:05:26 2018
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Subject: Re: [PATCHv2 1/5] mm: add coherence API for DMA to vmalloc/vmap
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	Christoph Hellwig <hch@lst.de>,
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On Thu, Dec 24, 2009 at 05:39:13AM -0700, Matthew Wilcox wrote:
> On Thu, Dec 24, 2009 at 10:08:53AM +0000, Matt Fleming wrote:
> > On Wed, Dec 23, 2009 at 03:22:21PM -0600, James Bottomley wrote:
> > > +
> > > +  void flush_kernel_vmap_range(void *vaddr, int size)
> > > +       flushes the kernel cache for a given virtual address range in
> > > +       the vmap area.  This API makes sure that and data the kernel
> > 
> >   	      	   	       	   	      	^^^ code and data?
> 
> I'd guess it's a typo for 'any data'.
> 

Aha yes, that would make more sense.

> > > +  void invalidate_kernel_vmap_range(void *vaddr, int size)
> > > +       invalidates the kernel cache for a given virtual address range
> > > +       in the vmap area.  This API is designed to make sure that while
> > > +       I/O went on to an address range in the vmap area, the processor
> > > +       didn't speculate cache reads and thus make the cache over the
> > > +       virtual address stale.
> > > +
> > 
> > Could this sentence be reworked a little? I find the "over the virtual
> > address" part a little difficult to parse.
> 
> How about:
> 
> invalidates the processor cache for a given virtual address range
> in the vmap area.  This API addresses the problem that the processor
> may have performed speculative reads into its cache of the vmapped
> area while I/O was occurring to the underlying physical pages.
> 
> Signed-off-by: Matthew Wilcox <willy@linux.intel.com>

Sounds good to me!
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From - Thu Nov 08 21:05:26 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: No drives come online in 2.6.32?
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	Matthew Wilcox <matthew@wil.cx>
To: Carlos O'Donell <carlos@systemhalted.org>
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On Wed, Dec 23, 2009 at 09:19:19PM -0500, Carlos O'Donell wrote:
> When booting 2.6.32, my scsi drives don't come online, all I see during boot is:
> ~~~
> sym53c8xx 0000:00:01.0: enabling device (0000 -> 0003)
> sym53c8xx 0000:00:01.0: enabling SERR and PARITY (0003 -> 0143)
> sym53c8xx 0000:00:01.1: enabling device (0000 -> 0003)
> sym53c8xx 0000:00:01.1: enabling SERR and PARITY (0003 -> 0143)
> sym53c8xx 0000:00:02.0: enabling device (0000 -> 0003)
> sym53c8xx 0000:00:02.0: enabling SERR and PARITY (0003 -> 0143)
> sym53c8xx 0000:00:02.1: enabling device (0146 -> 0147)
> ~~~
> When booting 2.6.32-rc6 the drives come online right away after they
> are enabled.
> 
> No amount of waiting helps.

Do you have CONFIG_SCSI_SCAN_ASYNC=y ?

If so, add CONFIG_SCSI_WAIT_SCAN=m or disable SCAN_ASYNC.

While this should work, it sounds like it's not working.

grant
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From - Thu Nov 08 21:05:26 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: wire up sys_recvmmsg
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Cc: linux-parisc@vger.kernel.org, Kyle McMartin <kyle@mcmartin.ca>
To: Helge Deller <deller@gmx.de>
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On Tue, Dec 22, 2009 at 11:50:33PM +0100, Helge Deller wrote:
> Signed-off-by: Helge Deller <deller@gmx.de>
> 

applied.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:05:26 2018
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Subject: Re: [PATCH] parisc: add strict copy size checks
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On Wed, Dec 23, 2009 at 12:21:04AM +0100, Helge Deller wrote:
> On 12/22/2009 11:56 PM, Helge Deller wrote:
>> Add CONFIG_DEBUG_STRICT_USER_COPY_CHECKS, copied from the x86
>> implementation.
>> [...PATCH...]
>
> Kyle,
>
> please don't apply yet.
> It will break the 64bit build.
> Nevertheless, it brings up some code areas which would need
> investigation...
>

Ok, cool.
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From - Thu Nov 08 21:05:26 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: sys_accept4, SOCK_CLOEXEC, misc, bonghits, and others...
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--ReaqsoxgOBHFXBhH
Content-Type: text/plain; charset=us-ascii
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So I wired up sys_accept4 over lunch today... it works ok in general,
and takes arguments such that it doesn't need a wrapper (yay.)

Problem. O_CLOEXEC is special on parisc because of the HPUX gunk which
makes everything miserable. The value in glibc is one bit off the value
in the kernel, and kaboom. No worky syscall.

Carlos, patch included below, tested with test_accept4.c, from Ulrich's
commit adding this syscall, modified (fixed) version of the test case
is attached to this email unless I'm a muppet and forgot.

Happy hacking^WHolidays, Kyle

diff --git a/ChangeLog.hppa b/ChangeLog.hppa
index 24a152e..4ce4cc7 100644
--- a/ChangeLog.hppa
+++ b/ChangeLog.hppa
@@ -1,3 +1,7 @@
+2009-12-26  Kyle McMartin   <kyle@redhat.com>
+	* sysdeps/unix/sysv/linux/hppa/bits/socket.h: Fix value of
+	SOCK_CLOEXEC to match O_CLOEXEC.
+
 2009-11-25  Carlos O'Donell  <carlos@codesourcery.com>
 
 	* sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h:
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/socket.h b/sysdeps/unix/sysv/linux/hppa/bits/socket.h
index ac6e81b..d552d85 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/socket.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/socket.h
@@ -62,7 +62,7 @@ enum __socket_type
   /* Flags to be ORed into the type parameter of socket and socketpair and
      used for the flags parameter of paccept.  */
 
-  SOCK_CLOEXEC = 02000000,	/* Atomically set close-on-exec flag for the
+  SOCK_CLOEXEC = 01000000,	/* Atomically set close-on-exec flag for the
 				   new descriptor(s).  */
 #define SOCK_CLOEXEC SOCK_CLOEXEC
 #undef SOCK_NONBLOCK

--ReaqsoxgOBHFXBhH
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="test_accept4.c"

/* test_accept4.c

  Copyright (C) 2008, Linux Foundation, written by Michael Kerrisk
       <mtk.manpages@gmail.com>

  Licensed under the GNU GPLv2 or later.
*/
#define _GNU_SOURCE
#include <unistd.h>
#include <sys/syscall.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdlib.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>

#define PORT_NUM 33333

#define die(msg) do { perror(msg); exit(EXIT_FAILURE); } while (0)

/**********************************************************************/

/* The following is what we need until glibc gets a wrapper for
  accept4() */

/* Flags for socket(), socketpair(), accept4() */
#undef SOCK_CLOEXEC
#define SOCK_CLOEXEC    010000000
#ifndef SOCK_NONBLOCK
#define SOCK_NONBLOCK   O_NONBLOCK
#endif

#define SYS_accept4 319

static int
__accept4(int fd, struct sockaddr *sockaddr, socklen_t *addrlen, int flags)
{
   printf("Calling accept4(): flags = 0x%x", flags);
   if (flags != 0) {
       printf(" (");
       if (flags & SOCK_CLOEXEC)
           printf("SOCK_CLOEXEC");
       if ((flags & SOCK_CLOEXEC) && (flags & SOCK_NONBLOCK))
           printf(" ");
       if (flags & SOCK_NONBLOCK)
           printf("SOCK_NONBLOCK");
       printf(")");
   }
   printf("\n");

#if USE_SOCKETCALL
   long args[6];

   args[0] = fd;
   args[1] = (long) sockaddr;
   args[2] = (long) addrlen;
   args[3] = flags;

   return syscall(SYS_socketcall, SYS_ACCEPT4, args);
#else
   return syscall(SYS_accept4, fd, sockaddr, addrlen, flags);
#endif
}

/**********************************************************************/

static int
do_test(int lfd, struct sockaddr_in *conn_addr,
       int closeonexec_flag, int nonblock_flag)
{
   int connfd, acceptfd;
   int fdf, flf, fdf_pass, flf_pass;
   struct sockaddr_in claddr;
   socklen_t addrlen;

   printf("=======================================\n");

   connfd = socket(AF_INET, SOCK_STREAM, 0);
   if (connfd == -1)
       die("socket");
   if (connect(connfd, (struct sockaddr *) conn_addr,
               sizeof(struct sockaddr_in)) == -1)
       die("connect");

   addrlen = sizeof(struct sockaddr_in);
   acceptfd = __accept4(lfd, (struct sockaddr *) &claddr, &addrlen,
                      closeonexec_flag | nonblock_flag);
   if (acceptfd == -1) {
       perror("accept4()");
       close(connfd);
       return 0;
   }

   fdf = fcntl(acceptfd, F_GETFD);
   if (fdf == -1)
       die("fcntl:F_GETFD");
   fdf_pass = ((fdf & FD_CLOEXEC) != 0) ==
              ((closeonexec_flag & SOCK_CLOEXEC) != 0);
   printf("Close-on-exec flag is %sset (%s); ",
           (fdf & FD_CLOEXEC) ? "" : "not ",
           fdf_pass ? "OK" : "failed");

   flf = fcntl(acceptfd, F_GETFL);
   if (flf == -1)
       die("fcntl:F_GETFD");
   flf_pass = ((flf & O_NONBLOCK) != 0) ==
              ((nonblock_flag & SOCK_NONBLOCK) !=0);
   printf("nonblock flag is %sset (%s)\n",
           (flf & O_NONBLOCK) ? "" : "not ",
           flf_pass ? "OK" : "failed");

   close(acceptfd);
   close(connfd);

   printf("Test result: %s\n", (fdf_pass && flf_pass) ? "PASS" : "FAIL");
   return fdf_pass && flf_pass;
}

static int
create_listening_socket(int port_num)
{
   struct sockaddr_in svaddr;
   int lfd;
   int optval;

   memset(&svaddr, 0, sizeof(struct sockaddr_in));
   svaddr.sin_family = AF_INET;
   svaddr.sin_addr.s_addr = htonl(INADDR_ANY);
   svaddr.sin_port = htons(port_num);

   lfd = socket(AF_INET, SOCK_STREAM, 0);
   if (lfd == -1)
       die("socket");

   optval = 1;
   if (setsockopt(lfd, SOL_SOCKET, SO_REUSEADDR, &optval,
                  sizeof(optval)) == -1)
       die("setsockopt");

   if (bind(lfd, (struct sockaddr *) &svaddr,
            sizeof(struct sockaddr_in)) == -1)
       die("bind");

   if (listen(lfd, 5) == -1)
       die("listen");

   return lfd;
}

int
main(int argc, char *argv[])
{
   struct sockaddr_in conn_addr;
   int lfd;
   int port_num;
   int passed;

   passed = 1;

   port_num = (argc > 1) ? atoi(argv[1]) : PORT_NUM;

   memset(&conn_addr, 0, sizeof(struct sockaddr_in));
   conn_addr.sin_family = AF_INET;
   conn_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
   conn_addr.sin_port = htons(port_num);

   lfd = create_listening_socket(port_num);

   if (!do_test(lfd, &conn_addr, 0, 0))
       passed = 0;
   if (!do_test(lfd, &conn_addr, SOCK_CLOEXEC, 0))
       passed = 0;
   if (!do_test(lfd, &conn_addr, 0, SOCK_NONBLOCK))
       passed = 0;
   if (!do_test(lfd, &conn_addr, SOCK_CLOEXEC, SOCK_NONBLOCK))
       passed = 0;

   close(lfd);

   exit(passed ? EXIT_SUCCESS : EXIT_FAILURE);
}

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New commits:
commit 359df6c21ca7535c147f84e10835b4ac71c7ce60
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Sat Dec 26 17:19:17 2009 +0000

    parisc: ditto sys_accept4
    
    tested with test_accept4.c from de11defebf00007677fb7ee91d9b089b78786fbb
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit d8cdf4ceb8eb0fe977b427f66c8b4d5ad5700d6f
Author: Helge Deller <deller@gmx.de>
Date:   Tue Dec 22 22:50:33 2009 +0000

    parisc: wire up sys_recvmmsg
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: No drives come online in 2.6.32?
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On Fri, Dec 25, 2009 at 04:46:55PM -0700, Grant Grundler wrote:
> On Wed, Dec 23, 2009 at 09:19:19PM -0500, Carlos O'Donell wrote:
> > When booting 2.6.32, my scsi drives don't come online, all I see during boot is:
> > ~~~
> > sym53c8xx 0000:00:01.0: enabling device (0000 -> 0003)
> > sym53c8xx 0000:00:01.0: enabling SERR and PARITY (0003 -> 0143)
> > sym53c8xx 0000:00:01.1: enabling device (0000 -> 0003)
> > sym53c8xx 0000:00:01.1: enabling SERR and PARITY (0003 -> 0143)
> > sym53c8xx 0000:00:02.0: enabling device (0000 -> 0003)
> > sym53c8xx 0000:00:02.0: enabling SERR and PARITY (0003 -> 0143)
> > sym53c8xx 0000:00:02.1: enabling device (0146 -> 0147)
> > ~~~
> > When booting 2.6.32-rc6 the drives come online right away after they
> > are enabled.
> > 
> > No amount of waiting helps.
> 
> Do you have CONFIG_SCSI_SCAN_ASYNC=y ?
> 
> If so, add CONFIG_SCSI_WAIT_SCAN=m or disable SCAN_ASYNC.
> 
> While this should work, it sounds like it's not working.

Huh?  The wait scan module will wait for scans to complete.  This sounds
like the scans are never starting.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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From - Thu Nov 08 21:05:26 2018
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On Sat, Dec 26, 2009 at 12:40:22PM -0700, Matthew Wilcox wrote:
> > > ~~~
> > > When booting 2.6.32-rc6 the drives come online right away after they
> > > are enabled.
> > > 
> > > No amount of waiting helps.
> > 
> > Do you have CONFIG_SCSI_SCAN_ASYNC=y ?
> > 
> > If so, add CONFIG_SCSI_WAIT_SCAN=m or disable SCAN_ASYNC.
> > 
> > While this should work, it sounds like it's not working.
> 
> Huh?  The wait scan module will wait for scans to complete.  This sounds
> like the scans are never starting.

Doh...you are right. WAIT_SCAN won't matter/help.
He should still disable SCAN_ASYNC as a test.

thanks,
grant
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From - Thu Nov 08 21:05:26 2018
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From: Roel Kluin <roel.kluin@gmail.com>
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Subject: [PATCH] parisc: test off by one in sgl_frem() and dbl_frem()
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With `while (stepcount-- > 0)' stepcount reaches -1 after the loop.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
 arch/parisc/math-emu/dfrem.c |    2 +-
 arch/parisc/math-emu/sfrem.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Unless I am missing something?

diff --git a/arch/parisc/math-emu/dfrem.c b/arch/parisc/math-emu/dfrem.c
index b983785..3283445 100644
--- a/arch/parisc/math-emu/dfrem.c
+++ b/arch/parisc/math-emu/dfrem.c
@@ -234,7 +234,7 @@ dbl_frem (dbl_floating_point * srcptr1, dbl_floating_point * srcptr2,
 		Dbl_subtract(opnd1p1,opnd1p2,opnd2p1,opnd2p2,opnd1p1,opnd1p2);
 		roundup = TRUE;
 	}
-	if (stepcount > 0 || Dbl_iszero(opnd1p1,opnd1p2)) {
+	if (stepcount >= 0 || Dbl_iszero(opnd1p1,opnd1p2)) {
 		/* division is exact, remainder is zero */
 		Dbl_setzero_exponentmantissa(resultp1,resultp2);
 		Dbl_copytoptr(resultp1,resultp2,dstptr);
diff --git a/arch/parisc/math-emu/sfrem.c b/arch/parisc/math-emu/sfrem.c
index 3a1b7a3..ad87832 100644
--- a/arch/parisc/math-emu/sfrem.c
+++ b/arch/parisc/math-emu/sfrem.c
@@ -229,7 +229,7 @@ sgl_frem (sgl_floating_point * srcptr1, sgl_floating_point * srcptr2,
 		Sgl_subtract(opnd1,opnd2,opnd1);
 		roundup = TRUE;
 	}
-	if (stepcount > 0 || Sgl_iszero(opnd1)) {
+	if (stepcount >= 0 || Sgl_iszero(opnd1)) {
 		/* division is exact, remainder is zero */
 		Sgl_setzero_exponentmantissa(result);
 		*dstptr = result;
--
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From - Thu Nov 08 21:05:26 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: test off by one in sgl_frem() and dbl_frem()
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> With `while (stepcount-- > 0)' stepcount reaches -1 after the loop.
> 
> Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
> ---
>  arch/parisc/math-emu/dfrem.c |    2 +-
>  arch/parisc/math-emu/sfrem.c |    2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> Unless I am missing something?

Are you sure the correct fix isn't to move the decrement of stepcount
into the loop?

Dave
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From - Thu Nov 08 21:05:26 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: test off by one in sgl_frem() and dbl_frem()
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On Sun, 2009-12-27 at 14:21 +0100, Roel Kluin wrote:
> With `while (stepcount-- > 0)' stepcount reaches -1 after the loop.

This is true, but seems to be by design

> Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
> ---
>  arch/parisc/math-emu/dfrem.c |    2 +-
>  arch/parisc/math-emu/sfrem.c |    2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> Unless I am missing something?
> 
> diff --git a/arch/parisc/math-emu/dfrem.c b/arch/parisc/math-emu/dfrem.c
> index b983785..3283445 100644
> --- a/arch/parisc/math-emu/dfrem.c
> +++ b/arch/parisc/math-emu/dfrem.c
> @@ -234,7 +234,7 @@ dbl_frem (dbl_floating_point * srcptr1, dbl_floating_point * srcptr2,
>  		Dbl_subtract(opnd1p1,opnd1p2,opnd2p1,opnd2p2,opnd1p1,opnd1p2);
>  		roundup = TRUE;
>  	}
> -	if (stepcount > 0 || Dbl_iszero(opnd1p1,opnd1p2)) {
> +	if (stepcount >= 0 || Dbl_iszero(opnd1p1,opnd1p2)) {
>  		/* division is exact, remainder is zero */
>  		Dbl_setzero_exponentmantissa(resultp1,resultp2);
>  		Dbl_copytoptr(resultp1,resultp2,dstptr);
> diff --git a/arch/parisc/math-emu/sfrem.c b/arch/parisc/math-emu/sfrem.c
> index 3a1b7a3..ad87832 100644
> --- a/arch/parisc/math-emu/sfrem.c
> +++ b/arch/parisc/math-emu/sfrem.c
> @@ -229,7 +229,7 @@ sgl_frem (sgl_floating_point * srcptr1, sgl_floating_point * srcptr2,
>  		Sgl_subtract(opnd1,opnd2,opnd1);
>  		roundup = TRUE;
>  	}
> -	if (stepcount > 0 || Sgl_iszero(opnd1)) {
> +	if (stepcount >= 0 || Sgl_iszero(opnd1)) {
>  		/* division is exact, remainder is zero */
>  		Sgl_setzero_exponentmantissa(result);
>  		*dstptr = result;

Your patch does nothing to the actual execution flow (Sgl_iszero is true
if stepcount == 0) ... what's the point of applying it?

James


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Subject: Re: [PATCHv2 5/5] xfs: fix xfs to work with Virtually Indexed
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On Thu, 2009-12-24 at 12:03 +0100, Christoph Hellwig wrote:
> On Wed, Dec 23, 2009 at 03:22:25PM -0600, James Bottomley wrote:
> > xfs_buf.c includes what is essentially a hand rolled version of
> > blk_rq_map_kern().  In order to work properly with the vmalloc buffers
> > that xfs uses, this hand rolled routine must also implement the flushing
> > API for vmap/vmalloc areas.
> > 
> > Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> 
> Looks good except some minor style issues.  Fix in the version below
> which also adds a helper to calculate the length of the vmap area
> instead of calculating it twice.

Sure ... I nearly did that ... but then there's a lot of stuff like that
repeated in the code.

I'll also add the optimisation that the invalidation is unnecessary in
the write case.

James


> ---
> 
> From: James Bottomley <James.Bottomley@suse.de>
> Subject: [PATCHv2 5/5] xfs: fix xfs to work with Virtually Indexed architectures
> 
> xfs_buf.c includes what is essentially a hand rolled version of
> blk_rq_map_kern().  In order to work properly with the vmalloc buffers
> that xfs uses, this hand rolled routine must also implement the flushing
> API for vmap/vmalloc areas.
> 
> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> 
> Index: linux-2.6/fs/xfs/linux-2.6/xfs_buf.c
> ===================================================================
> --- linux-2.6.orig/fs/xfs/linux-2.6/xfs_buf.c	2009-12-17 08:05:53.962275389 +0100
> +++ linux-2.6/fs/xfs/linux-2.6/xfs_buf.c	2009-12-24 11:59:02.031073134 +0100
> @@ -76,6 +76,27 @@ struct workqueue_struct *xfsconvertd_wor
>  #define xfs_buf_deallocate(bp) \
>  	kmem_zone_free(xfs_buf_zone, (bp));
>  
> +static inline int
> +xfs_buf_is_vmapped(
> +	struct xfs_buf	*bp)
> +{
> +	/*
> +	 * Return true if the buffer is vmapped.
> +	 *
> +	 * The XBF_MAPPED flag is set if the buffer should be mapped, but the
> +	 * code is clever enough to know it doesn't have to map a single page,
> +	 * so the check has to be both for XBF_MAPPED and bp->b_page_count > 1.
> +	 */
> +	return (bp->b_flags & XBF_MAPPED) && bp->b_page_count > 1;
> +}
> +
> +static inline int
> +xfs_buf_vmap_len(
> +	struct xfs_buf	*bp)
> +{
> +	return (bp->b_page_count * PAGE_SIZE) - bp->b_offset;
> +}
> +
>  /*
>   *	Page Region interfaces.
>   *
> @@ -314,7 +335,7 @@ xfs_buf_free(
>  	if (bp->b_flags & (_XBF_PAGE_CACHE|_XBF_PAGES)) {
>  		uint		i;
>  
> -		if ((bp->b_flags & XBF_MAPPED) && (bp->b_page_count > 1))
> +		if (xfs_buf_is_vmapped(bp))
>  			free_address(bp->b_addr - bp->b_offset);
>  
>  		for (i = 0; i < bp->b_page_count; i++) {
> @@ -1107,6 +1128,9 @@ xfs_buf_bio_end_io(
>  
>  	xfs_buf_ioerror(bp, -error);
>  
> +	if (!error && xfs_buf_is_vmapped(bp))
> +		invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp));
> +
>  	do {
>  		struct page	*page = bvec->bv_page;
>  
> @@ -1216,6 +1240,10 @@ next_chunk:
>  
>  submit_io:
>  	if (likely(bio->bi_size)) {
> +		if (xfs_buf_is_vmapped(bp)) {
> +			flush_kernel_vmap_range(bp->b_addr,
> +						xfs_buf_vmap_len(bp));
> +		}
>  		submit_bio(rw, bio);
>  		if (size)
>  			goto next_chunk;
> --
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On Thu, 2009-12-24 at 05:39 -0700, Matthew Wilcox wrote:
> On Thu, Dec 24, 2009 at 10:08:53AM +0000, Matt Fleming wrote:
> > On Wed, Dec 23, 2009 at 03:22:21PM -0600, James Bottomley wrote:
> > > +
> > > +  void flush_kernel_vmap_range(void *vaddr, int size)
> > > +       flushes the kernel cache for a given virtual address range in
> > > +       the vmap area.  This API makes sure that and data the kernel
> > 
> >   	      	   	       	   	      	^^^ code and data?
> 
> I'd guess it's a typo for 'any data'.
> 
> > > +  void invalidate_kernel_vmap_range(void *vaddr, int size)
> > > +       invalidates the kernel cache for a given virtual address range
> > > +       in the vmap area.  This API is designed to make sure that while
> > > +       I/O went on to an address range in the vmap area, the processor
> > > +       didn't speculate cache reads and thus make the cache over the
> > > +       virtual address stale.
> > > +
> > 
> > Could this sentence be reworked a little? I find the "over the virtual
> > address" part a little difficult to parse.
> 
> How about:
> 
> invalidates the processor cache for a given virtual address range
> in the vmap area.  This API addresses the problem that the processor
> may have performed speculative reads into its cache of the vmapped
> area while I/O was occurring to the underlying physical pages.

So better, I think is

invalidates the cache for a given virtual address range in the vmap area
which prevents the processor from making the cache stale by
speculatively reading data while the I/O was occurring to the physical
pages.

James



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Subject: Re: [PATCH] parisc: test off by one in sgl_frem() and dbl_frem()
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Op 27-12-09 16:30, James Bottomley schreef:
> On Sun, 2009-12-27 at 14:21 +0100, Roel Kluin wrote:
>> With `while (stepcount-- > 0)' stepcount reaches -1 after the loop.
> 
> This is true, but seems to be by design

>> -	if (stepcount > 0 || Sgl_iszero(opnd1)) {
>> +	if (stepcount >= 0 || Sgl_iszero(opnd1)) {

> 
> Your patch does nothing to the actual execution flow (Sgl_iszero is true
> if stepcount == 0) ... what's the point of applying it?
> 
> James

Ok, please ignore and thanks (also to Dave) for review.

Roel
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: futex wait failure
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On Wed, 23 Dec 2009, Carlos O'Donell wrote:

> We are just like every other architecture... with the exception that
> we currently have more bugs :-)

I have been looking at the lws implementation.  I've attached a patch
with a couple of tweaks:

1) I changed the unconditional branch at the entry point to a gate.
Didn't think it was a good idea to execute code at user priveledge.
This seems to have improved things (got through a complete testsuite
run on gsyprf11 without a deadlock).  However, I hit a slightly
different lockup on c3750.

2) Change return space register to sr7.  sr3 is not set correctly
if the entry number is invalid.

Have nasty suspicion that sr3 is getting hit...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--VbJkn9YxBvnuCH5J
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="syscall.S.d.1"

--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -47,18 +47,17 @@ ENTRY(linux_gateway_page)
 	KILL_INSN
 	.endr
 
-	/* ADDRESS 0xb0 to 0xb4, lws uses 1 insns for entry */
+	/* ADDRESS 0xb0 to 0xb8, lws uses two insns for entry */
 	/* Light-weight-syscall entry must always be located at 0xb0 */
 	/* WARNING: Keep this number updated with table size changes */
 #define __NR_lws_entries (2)
 
 lws_entry:
-	/* Unconditional branch to lws_start, located on the 
-	   same gateway page */
-	b,n	lws_start
+	gate	lws_start, %r0		/* increase privilege */
+	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
 
-	/* Fill from 0xb4 to 0xe0 */
-	.rept 11
+	/* Fill from 0xb8 to 0xe0 */
+	.rept 10
 	KILL_INSN
 	.endr
 
@@ -423,9 +422,6 @@ tracesys_sigexit:
 
 	*********************************************************/
 lws_start:
-	/* Gate and ensure we return to userspace */
-	gate	.+8, %r0
-	depi	3, 31, 2, %r31	/* Ensure we return to userspace */
 
 #ifdef CONFIG_64BIT
 	/* FIXME: If we are a 64-bit kernel just
@@ -473,7 +469,7 @@ lws_exit:
 	/* now reset the lowest bit of sp if it was set */
 	xor	%r30,%r1,%r30
 #endif
-	be,n	0(%sr3, %r31)
+	be,n	0(%sr7, %r31)
 
 
 	

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On 12/28/2009 07:59 PM, John David Anglin wrote:
> On Wed, 23 Dec 2009, Carlos O'Donell wrote:
>
>> We are just like every other architecture... with the exception that
>> we currently have more bugs :-)
>
> I have been looking at the lws implementation.  I've attached a patch
> with a couple of tweaks:

The patch looks good.

> 1) I changed the unconditional branch at the entry point to a gate.
> Didn't think it was a good idea to execute code at user priveledge.

Can you explain that?
The branch might get interrupted, before the process get privileged?

> This seems to have improved things (got through a complete testsuite
> run on gsyprf11 without a deadlock).

Good. I'll test too.

>However, I hit a slightly different lockup on c3750.

Any info?

> 2) Change return space register to sr7.  sr3 is not set correctly
> if the entry number is invalid.

Yep.

> Have nasty suspicion that sr3 is getting hit...

Helge
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> The patch looks good.
> 
> > 1) I changed the unconditional branch at the entry point to a gate.
> > Didn't think it was a good idea to execute code at user priveledge.
> 
> Can you explain that?

Not really, except that we gate immediately in the other code paths.
The gateway page is special in that processes are not supposed to get
scheduled off the page.

> The branch might get interrupted, before the process get privileged?

That was the concern.  At worst, an unnecessary branch is eliminated.
It's clear that this doesn't fix the futex deadlock, but the timing of
the lws lock code has changed resulting in slightly different symptoms.

> > This seems to have improved things (got through a complete testsuite
> > run on gsyprf11 without a deadlock).
> 
> Good. I'll test too.
> 
> >However, I hit a slightly different lockup on c3750.
> 
> Any info?

No, I restarted a new GCC build on this machine.  As with the previous
case on gsyprf11, thread 2 in expect seemed confused about its holding
the lock.  I've got a new hang on gsyprf11 to look at.

In my build last night on the c3750, expect dropped core in the GCC
testsuite.  Otherwise, it completed the GCC build and check.  I'll
look a bit at the core dump today.

On my rp3440 (UP kernel), I had several segmentation faults in /bin/sh
building GCC with 2.6.32.2.  For some reason, 2.6.31.9 is better.  I
haven't tried expect 5.44.1.14-5 on it.  It currently using expect-tcl8.3
which avoids the pthread issue.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Not really, except that we gate immediately in the other code paths.
> The gateway page is special in that processes are not supposed to get
> scheduled off the page.
> 
>> The branch might get interrupted, before the process get privileged?
> 
> That was the concern.  At worst, an unnecessary branch is eliminated.
> It's clear that this doesn't fix the futex deadlock, but the timing of
> the lws lock code has changed resulting in slightly different symptoms.

IIRC we had to move the gate in the regular syscall path earlier as well 
to fix some security problems before. I don't recall the exact details, 
but I seem to recall it had to do with using ptrace(SINGLESTEP).

randolph
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Newsgroups: gmane.linux.kernel,gmane.linux.kernel.wireless.general,gmane.linux.ports.arm.omap,gmane.linux.ports.parisc
Subject: Re: regression: crash from 'ls /sys/modules/wl1251_spi/notes'
Date: Wed, 30 Dec 2009 09:49:17 -0600
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To: Kalle Valo <kalle.valo@iki.fi>
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On Wed, 2009-12-30 at 13:41 +0200, Kalle Valo wrote:
> Hello,
> 
> I noticed weird crashes related to wl1251_spi notes sysfs directory
> with current wireless-testing (2.6.33-rc2 plus some wireless patches).
> The simplest way to reproduce the problem is to do this on a nokia n900
> (arm/omap 3430):
> 
> # ls /sys/module/wl1251_spi/notes/
> [ 4776.503234] Unable to handle kernel NULL pointer dereference at
> virtual address 00000000
> [ 4776.511596] pgd = cce88000
> [ 4776.514343] [00000000] *pgd=8f04a031, *pte=00000000, *ppte=00000000
> [ 4776.520812] Internal error: Oops: 17 [#1]
> [ 4776.524871] last sysfs file: /sys/class/net/wlan0/flags
> [ 4776.530151] Modules linked in: wl1251_spi wl1251 mac80211 cfg80211
> [ 4776.536468] CPU: 0    Not tainted  (2.6.33-rc2-wl-47091-g981eb84
> #12)
> [ 4776.542999] PC is at strlen+0xc/0x20
> [ 4776.546630] LR is at sysfs_readdir+0x15c/0x1e0
> [ 4776.551116] pc : [<c01476ac>]    lr : [<c00f5e6c>]    psr: a0000013
> [ 4776.551147] sp : cce87f28  ip : 22222222  fp : be99961c
> [ 4776.562744] r10: cce87f80  r9 : 00000000  r8 : 00000000
> [ 4776.568023] r7 : c00b9540  r6 : cce87f80  r5 : ccec4458  r4 :
> ce808980
> [ 4776.574615] r3 : 00000000  r2 : 00000002  r1 : 22222222  r0 :
> 00000000
> [ 4776.581207] Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM
> Segment user
> [ 4776.588409] Control: 10c5387d  Table: 8ce88019  DAC: 00000015
> [ 4776.594238] Process ls (pid: 1148, stack limit = 0xcce862e8)
> [ 4776.599945] Stack: (0xcce87f28 to 0xcce88000)
> [ 4776.604370] 7f20:                   00000001 00000000 00000e16
> 00000000 00000004 22222222
> [ 4776.612640] 7f40: ce808980 ce808980 cf79e34c c00b9540 00000000
> cf79e2b8 cce86000 c00b982c
> [ 4776.620910] 7f60: 00000001 00000000 00001000 000690d0 ce808980
> c002bae4 00000000 c00b98c4
> [ 4776.629180] 7f80: 00069100 000690e8 00000fd0 ffffffea 00000000
> 00000000 00000000 00000000
> [ 4776.637451] 7fa0: 000000d9 c002b940 00000000 00000000 00000003
> 000690d0 00001000 00000000
> [ 4776.645721] 7fc0: 00000000 00000000 00000000 000000d9 000690c8
> 00000001 00000000 be99961c
> [ 4776.654022] 7fe0: 400ef954 be999614 400efa10 400ef908 60000010
> 00000003 80c69021 80c69421
> [ 4776.662292] [<c01476ac>] (strlen+0xc/0x20) from [<c00f5e6c>]
> (sysfs_readdir+0x15c/0x1e0)
> [ 4776.670501] [<c00f5e6c>] (sysfs_readdir+0x15c/0x1e0) from
> [<c00b982c>] (vfs_readdir+0x80/0xb4)
> [ 4776.679229] [<c00b982c>] (vfs_readdir+0x80/0xb4) from [<c00b98c4>]
> (sys_getdents64+0x64/0xb4)
> [ 4776.687866] [<c00b98c4>] (sys_getdents64+0x64/0xb4) from
> [<c002b940>] (ret_fast_syscall+0x0/0x38)
> [ 4776.696838] Code: c027700c e1a03000 ea000000 e2833001 (e5d32000) 
> [ 4776.703063] ---[ end trace 6a3b0fdf4e9def99 ]---
> [ 4776.707794] Kernel panic - not syncing: Fatal exception

> Also removing wl1251_spi causes a crash. The reason for this is that a
> sysfs file with a null string as name is trying to be removed from the
> notes directory.

Yes, this is because the notes sections describe the text sections.
When we ignore an empty text section, we'd need to ignore its
corresponding notes section.

The reason we didn't see this on parisc is because our compiler doesn't
actually produce any notes sections.

> I found out that reverting this patch solves the problem:
> 
>   commit 35dead4235e2b67da7275b4122fed37099c2f462
>   Author: Helge Deller <deller@gmx.de>
>   Date:   Thu Dec 3 00:29:15 2009 +0100
> 
>     modules: don't export section names of empty sections via sysfs
>     
>     On the parisc architecture we face for each and every loaded
>     kernel module this kernel "badness warning":
> 
>       sysfs: cannot create duplicate filename
>     '/module/ac97_bus/sections/.text'
>       Badness at fs/sysfs/dir.c:487
>     
>     Reason for that is, that on parisc all kernel modules do have
>     multiple .text sections due to the usage of the
>     -ffunction-sections compiler flag which is needed to reach all
>     jump targets on this platform.
> 
>     An objdump on such a kernel module gives:
>     Sections:
>     Idx Name          Size      VMA       LMA       File off  Algn
>       0 .note.gnu.build-id 00000024  00000000  00000000  00000034
>     2**2
>                       CONTENTS, ALLOC, LOAD, READONLY, DATA
>       1 .text         00000000  00000000  00000000  00000058  2**0
>                       CONTENTS, ALLOC, LOAD, READONLY, CODE
>       2 .text.ac97_bus_match 0000001c  00000000  00000000  00000058
>     2**2
>                       CONTENTS, ALLOC, LOAD, READONLY, CODE
>       3 .text         00000000  00000000  00000000  000000d4  2**0
>                       CONTENTS, ALLOC, LOAD, READONLY, CODE
>     ...
>     Since the .text sections are empty (size of 0 bytes) and won't be
>     loaded by the kernel module loader anyway, I don't see a reason
>     why such sections need to be listed under
>     /sys/module/<module_name>/sections/<section_name> either.
>     
>     The attached patch does solve this issue by not exporting section
>     names which are empty.
>     
>     This fixes bugzilla
>     http://bugzilla.kernel.org/show_bug.cgi?id=14703
>     
>     Signed-off-by: Helge Deller <deller@gmx.de>
>     CC: rusty@rustcorp.com.au
>     CC: akpm@linux-foundation.org
>     CC: James.Bottomley@HansenPartnership.com
>     CC: roland@redhat.com
>     CC: dave@hiauly1.hia.nrc.ca
>     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
> 
> I was also able to reproduce the problem with vanilla 2.6.32. I'm
> pretty sure (but haven't tested) that 2.6.32-rc8 does not have this
> problem.
> 
> My original mail containing more info:
> 
> http://www.spinics.net/lists/linux-wireless/msg44863.html
> 
> Simple bandaid patch below fixes the problem. I know it's not a proper
> solution, but hopefully makes it easier to understand the problem.
> Unfortunately my knowledge about ELF is too limited to fix this
> properly, but I can provide more information as needed. Or even try to
> fix it myself if someone else holds my hand :)
> 
> --- a/kernel/module.c
> +++ b/kernel/module.c
> @@ -1189,10 +1189,13 @@ static void add_notes_attrs(struct module
> *mod, unsigned int nsect,
>         if (!notes_attrs->dir)
>                 goto out;
>  
> -       for (i = 0; i < notes; ++i)
> +       for (i = 0; i < notes; ++i) {
> +               if (WARN_ON(!notes_attrs->attrs[i].attr.name))
> +                       continue;
>                 if (sysfs_create_bin_file(notes_attrs->dir,
>                                           &notes_attrs->attrs[i]))
>                         goto out;
> +       }
>  
>         mod->notes_attrs = notes_attrs;
>         return;

A better, and more comprehensive patch would be to try not to count the
empty text sections when we're building the notes section (and actually
anywhere else in the file).  This patch actually relies on the fact that
if sh_size is zero for the text section it should be for the
corresponding notes section.  If that doesn't work, we'd actually have
to do the matching in the construction piece.

Can you try it to see if it works for you?  If it doesn't, I'll try
matching notes to text.  It works fine on parisc, but as we don't have a
notes section, that's not saying much ...

Thanks,

James

---

diff --git a/kernel/module.c b/kernel/module.c
index e96b8ed..957f912 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -132,6 +132,11 @@ void __module_put_and_exit(struct module *mod, long code)
 }
 EXPORT_SYMBOL(__module_put_and_exit);
 
+static inline int section_allocated(Elf_Shdr hdr)
+{
+	return (hdr.sh_flags & SHF_ALLOC) && hdr.sh_size != 0;
+}
+
 /* Find a module section: 0 means not found. */
 static unsigned int find_sec(Elf_Ehdr *hdr,
 			     Elf_Shdr *sechdrs,
@@ -142,7 +147,7 @@ static unsigned int find_sec(Elf_Ehdr *hdr,
 
 	for (i = 1; i < hdr->e_shnum; i++)
 		/* Alloc bit cleared means "ignore it." */
-		if ((sechdrs[i].sh_flags & SHF_ALLOC)
+		if (section_allocated(sechdrs[i])
 		    && strcmp(secstrings+sechdrs[i].sh_name, name) == 0)
 			return i;
 	return 0;
@@ -1051,8 +1056,7 @@ static void add_sect_attrs(struct module *mod, unsigned int nsect,
 
 	/* Count loaded sections and allocate structures */
 	for (i = 0; i < nsect; i++)
-		if (sechdrs[i].sh_flags & SHF_ALLOC
-		    && sechdrs[i].sh_size)
+		if (section_allocated(sechdrs[i]))
 			nloaded++;
 	size[0] = ALIGN(sizeof(*sect_attrs)
 			+ nloaded * sizeof(sect_attrs->attrs[0]),
@@ -1070,9 +1074,7 @@ static void add_sect_attrs(struct module *mod, unsigned int nsect,
 	sattr = &sect_attrs->attrs[0];
 	gattr = &sect_attrs->grp.attrs[0];
 	for (i = 0; i < nsect; i++) {
-		if (! (sechdrs[i].sh_flags & SHF_ALLOC))
-			continue;
-		if (!sechdrs[i].sh_size)
+		if (!section_allocated(sechdrs[i]))
 			continue;
 		sattr->address = sechdrs[i].sh_addr;
 		sattr->name = kstrdup(secstrings + sechdrs[i].sh_name,
@@ -1156,7 +1158,7 @@ static void add_notes_attrs(struct module *mod, unsigned int nsect,
 	/* Count notes sections and allocate structures.  */
 	notes = 0;
 	for (i = 0; i < nsect; i++)
-		if ((sechdrs[i].sh_flags & SHF_ALLOC) &&
+		if (section_allocated(sechdrs[i]) &&
 		    (sechdrs[i].sh_type == SHT_NOTE))
 			++notes;
 
@@ -1172,7 +1174,7 @@ static void add_notes_attrs(struct module *mod, unsigned int nsect,
 	notes_attrs->notes = notes;
 	nattr = &notes_attrs->attrs[0];
 	for (loaded = i = 0; i < nsect; ++i) {
-		if (!(sechdrs[i].sh_flags & SHF_ALLOC))
+		if (!section_allocated(sechdrs[i]))
 			continue;
 		if (sechdrs[i].sh_type == SHT_NOTE) {
 			nattr->attr.name = mod->sect_attrs->attrs[loaded].name;
@@ -1720,7 +1722,7 @@ static char elf_type(const Elf_Sym *sym,
 		return '?';
 	if (sechdrs[sym->st_shndx].sh_flags & SHF_EXECINSTR)
 		return 't';
-	if (sechdrs[sym->st_shndx].sh_flags & SHF_ALLOC
+	if (section_allocated(sechdrs[sym->st_shndx])
 	    && sechdrs[sym->st_shndx].sh_type != SHT_NOBITS) {
 		if (!(sechdrs[sym->st_shndx].sh_flags & SHF_WRITE))
 			return 'r';
@@ -1751,7 +1753,7 @@ static bool is_core_symbol(const Elf_Sym *src, const Elf_Shdr *sechdrs,
 		return false;
 
 	sec = sechdrs + src->st_shndx;
-	if (!(sec->sh_flags & SHF_ALLOC)
+	if (!section_allocated(*sec)
 #ifndef CONFIG_KALLSYMS_ALL
 	    || !(sec->sh_flags & SHF_EXECINSTR)
 #endif
@@ -1913,7 +1915,7 @@ static void kmemleak_load_module(struct module *mod, Elf_Ehdr *hdr,
 	kmemleak_scan_area(mod, sizeof(struct module), GFP_KERNEL);
 
 	for (i = 1; i < hdr->e_shnum; i++) {
-		if (!(sechdrs[i].sh_flags & SHF_ALLOC))
+		if (!section_allocated(sechdrs[i]))
 			continue;
 		if (strncmp(secstrings + sechdrs[i].sh_name, ".data", 5) != 0
 		    && strncmp(secstrings + sechdrs[i].sh_name, ".bss", 4) != 0)
@@ -2139,7 +2141,7 @@ static noinline struct module *load_module(void __user *umod,
 	for (i = 0; i < hdr->e_shnum; i++) {
 		void *dest;
 
-		if (!(sechdrs[i].sh_flags & SHF_ALLOC))
+		if (!section_allocated(sechdrs[i]))
 			continue;
 
 		if (sechdrs[i].sh_entsize & INIT_OFFSET_MASK)
@@ -2287,7 +2289,7 @@ static noinline struct module *load_module(void __user *umod,
 			continue;
 
 		/* Don't bother with non-allocated sections */
-		if (!(sechdrs[info].sh_flags & SHF_ALLOC))
+		if (!section_allocated(sechdrs[info]))
 			continue;
 
 		if (sechdrs[i].sh_type == SHT_REL)



From - Thu Nov 08 21:05:27 2018
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From: Kalle Valo <kalle.valo@iki.fi>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.wireless.general,gmane.linux.ports.arm.omap
Subject: Re: regression: crash from 'ls /sys/modules/wl1251_spi/notes'
Date: Wed, 30 Dec 2009 19:20:26 +0200
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Cc: linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org,
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In-Reply-To: <1262188157.2749.21.camel@mulgrave.site> (James Bottomley's message of "Wed\, 30 Dec 2009 09\:49\:17 -0600")
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James Bottomley <James.Bottomley@HansenPartnership.com> writes:

> On Wed, 2009-12-30 at 13:41 +0200, Kalle Valo wrote:
>
>> Also removing wl1251_spi causes a crash. The reason for this is that a
>> sysfs file with a null string as name is trying to be removed from the
>> notes directory.
>
> Yes, this is because the notes sections describe the text sections.
> When we ignore an empty text section, we'd need to ignore its
> corresponding notes section.
>
> The reason we didn't see this on parisc is because our compiler doesn't
> actually produce any notes sections.

Also on omap not all modules can reproduce the problem. For example
cfg80211, mac80211 and wl1251 modules work just fine, but with
wl1251_spi I see the problem everytime.

> A better, and more comprehensive patch would be to try not to count the
> empty text sections when we're building the notes section (and actually
> anywhere else in the file).  This patch actually relies on the fact that
> if sh_size is zero for the text section it should be for the
> corresponding notes section.  If that doesn't work, we'd actually have
> to do the matching in the construction piece.
>
> Can you try it to see if it works for you?  If it doesn't, I'll try
> matching notes to text.  It works fine on parisc, but as we don't have a
> notes section, that's not saying much ...

Thanks. I tested the patch on my setup, this time on top of Linus'
tree (commit 6b7b284). And the patch fixes the issue, I can't
reproduce the problem at all, both 'rmmod wl1251_spi' and ls work
without any problems. So here's my tested-by:

Tested-by: Kalle Valo <kalle.valo@iki.fi>

Also please consider sending the fix to stable.

Thank you for fixing this so fast.

-- 
Kalle Valo
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: futex wait failure
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On Tue, Dec 29, 2009 at 8:47 AM, Helge Deller <deller@gmx.de> wrote:
>> 2) Change return space register to sr7. =A0sr3 is not set correctly
>> if the entry number is invalid.
>
> Yep.
>
>> Have nasty suspicion that sr3 is getting hit...

Is the thought here that we take an interrupt, and sr3 is not
guaranteed saved/restored, while sr7 is guaranteed?

I don't see anything wrong with moving the gate earlier (unless
someone can come up with a case where an LWS may not want to gate).

It has the benefit of making the fast path 1 instruction shorter,
however I don't see that it makes the implementation more correct.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:28 2018
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Subject: Re: futex wait failure
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On 12/31/2009 07:14 PM, Carlos O'Donell wrote:
> On Tue, Dec 29, 2009 at 8:47 AM, Helge Deller<deller@gmx.de>  wrote:
>>> 2) Change return space register to sr7.  sr3 is not set correctly
>>> if the entry number is invalid.
>>
>> Yep.
>>
>>> Have nasty suspicion that sr3 is getting hit...
>
> Is the thought here that we take an interrupt, and sr3 is not
> guaranteed saved/restored, while sr7 is guaranteed?
>
> I don't see anything wrong with moving the gate earlier (unless
> someone can come up with a case where an LWS may not want to gate).
>
> It has the benefit of making the fast path 1 instruction shorter,
> however I don't see that it makes the implementation more correct.

I tested the patch and the testcase in
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=561203
still segfaults.

Nevertheless, I think Dave's patch should be applied...

Helge
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From - Thu Nov 08 21:05:28 2018
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On 12/30/2009 04:49 PM, James Bottomley wrote:
> A better, and more comprehensive patch would be to try not to count the
> empty text sections when we're building the notes section (and actually
> anywhere else in the file).  This patch actually relies on the fact that
> if sh_size is zero for the text section it should be for the
> corresponding notes section.  If that doesn't work, we'd actually have
> to do the matching in the construction piece.
>
> Can you try it to see if it works for you?  If it doesn't, I'll try
> matching notes to text.  It works fine on parisc, but as we don't have a
> notes section, that's not saying much ...
>
> Thanks,
>
> James


Ben Hutchings already sent a similar patch.
See: http://patchwork.kernel.org/patch/68925/

IMHO James patch below seems better since it
checks if a section will be allocated at a few more
places...

Helge


> ---
>
> diff --git a/kernel/module.c b/kernel/module.c
> index e96b8ed..957f912 100644
> --- a/kernel/module.c
> +++ b/kernel/module.c
> @@ -132,6 +132,11 @@ void __module_put_and_exit(struct module *mod, long code)
>   }
>   EXPORT_SYMBOL(__module_put_and_exit);
>
> +static inline int section_allocated(Elf_Shdr hdr)
> +{
> +	return (hdr.sh_flags&  SHF_ALLOC)&&  hdr.sh_size != 0;
> +}
> +
>   /* Find a module section: 0 means not found. */
>   static unsigned int find_sec(Elf_Ehdr *hdr,
>   			     Elf_Shdr *sechdrs,
> @@ -142,7 +147,7 @@ static unsigned int find_sec(Elf_Ehdr *hdr,
>
>   	for (i = 1; i<  hdr->e_shnum; i++)
>   		/* Alloc bit cleared means "ignore it." */
> -		if ((sechdrs[i].sh_flags&  SHF_ALLOC)
> +		if (section_allocated(sechdrs[i])
>   		&&  strcmp(secstrings+sechdrs[i].sh_name, name) == 0)
>   			return i;
>   	return 0;
> @@ -1051,8 +1056,7 @@ static void add_sect_attrs(struct module *mod, unsigned int nsect,
>
>   	/* Count loaded sections and allocate structures */
>   	for (i = 0; i<  nsect; i++)
> -		if (sechdrs[i].sh_flags&  SHF_ALLOC
> -		&&  sechdrs[i].sh_size)
> +		if (section_allocated(sechdrs[i]))
>   			nloaded++;
>   	size[0] = ALIGN(sizeof(*sect_attrs)
>   			+ nloaded * sizeof(sect_attrs->attrs[0]),
> @@ -1070,9 +1074,7 @@ static void add_sect_attrs(struct module *mod, unsigned int nsect,
>   	sattr =&sect_attrs->attrs[0];
>   	gattr =&sect_attrs->grp.attrs[0];
>   	for (i = 0; i<  nsect; i++) {
> -		if (! (sechdrs[i].sh_flags&  SHF_ALLOC))
> -			continue;
> -		if (!sechdrs[i].sh_size)
> +		if (!section_allocated(sechdrs[i]))
>   			continue;
>   		sattr->address = sechdrs[i].sh_addr;
>   		sattr->name = kstrdup(secstrings + sechdrs[i].sh_name,
> @@ -1156,7 +1158,7 @@ static void add_notes_attrs(struct module *mod, unsigned int nsect,
>   	/* Count notes sections and allocate structures.  */
>   	notes = 0;
>   	for (i = 0; i<  nsect; i++)
> -		if ((sechdrs[i].sh_flags&  SHF_ALLOC)&&
> +		if (section_allocated(sechdrs[i])&&
>   		(sechdrs[i].sh_type == SHT_NOTE))
>   			++notes;
>
> @@ -1172,7 +1174,7 @@ static void add_notes_attrs(struct module *mod, unsigned int nsect,
>   	notes_attrs->notes = notes;
>   	nattr =&notes_attrs->attrs[0];
>   	for (loaded = i = 0; i<  nsect; ++i) {
> -		if (!(sechdrs[i].sh_flags&  SHF_ALLOC))
> +		if (!section_allocated(sechdrs[i]))
>   			continue;
>   		if (sechdrs[i].sh_type == SHT_NOTE) {
>   			nattr->attr.name = mod->sect_attrs->attrs[loaded].name;
> @@ -1720,7 +1722,7 @@ static char elf_type(const Elf_Sym *sym,
>   		return '?';
>   	if (sechdrs[sym->st_shndx].sh_flags&  SHF_EXECINSTR)
>   		return 't';
> -	if (sechdrs[sym->st_shndx].sh_flags&  SHF_ALLOC
> +	if (section_allocated(sechdrs[sym->st_shndx])
>   	&&  sechdrs[sym->st_shndx].sh_type != SHT_NOBITS) {
>   		if (!(sechdrs[sym->st_shndx].sh_flags&  SHF_WRITE))
>   			return 'r';
> @@ -1751,7 +1753,7 @@ static bool is_core_symbol(const Elf_Sym *src, const Elf_Shdr *sechdrs,
>   		return false;
>
>   	sec = sechdrs + src->st_shndx;
> -	if (!(sec->sh_flags&  SHF_ALLOC)
> +	if (!section_allocated(*sec)
>   #ifndef CONFIG_KALLSYMS_ALL
>   	    || !(sec->sh_flags&  SHF_EXECINSTR)
>   #endif
> @@ -1913,7 +1915,7 @@ static void kmemleak_load_module(struct module *mod, Elf_Ehdr *hdr,
>   	kmemleak_scan_area(mod, sizeof(struct module), GFP_KERNEL);
>
>   	for (i = 1; i<  hdr->e_shnum; i++) {
> -		if (!(sechdrs[i].sh_flags&  SHF_ALLOC))
> +		if (!section_allocated(sechdrs[i]))
>   			continue;
>   		if (strncmp(secstrings + sechdrs[i].sh_name, ".data", 5) != 0
>   		&&  strncmp(secstrings + sechdrs[i].sh_name, ".bss", 4) != 0)
> @@ -2139,7 +2141,7 @@ static noinline struct module *load_module(void __user *umod,
>   	for (i = 0; i<  hdr->e_shnum; i++) {
>   		void *dest;
>
> -		if (!(sechdrs[i].sh_flags&  SHF_ALLOC))
> +		if (!section_allocated(sechdrs[i]))
>   			continue;
>
>   		if (sechdrs[i].sh_entsize&  INIT_OFFSET_MASK)
> @@ -2287,7 +2289,7 @@ static noinline struct module *load_module(void __user *umod,
>   			continue;
>
>   		/* Don't bother with non-allocated sections */
> -		if (!(sechdrs[info].sh_flags&  SHF_ALLOC))
> +		if (!section_allocated(sechdrs[info]))
>   			continue;
>
>   		if (sechdrs[i].sh_type == SHT_REL)
>
>

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From: "Robert P. J. Day" <rpjday@crashcourse.ca>
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Subject: [PATCH] PARISC: Simplify param.h by including
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Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>

---

diff --git a/arch/parisc/include/asm/param.h b/arch/parisc/include/asm/param.h
index 32e03d8..965d454 100644
--- a/arch/parisc/include/asm/param.h
+++ b/arch/parisc/include/asm/param.h
@@ -1,22 +1 @@
-#ifndef _ASMPARISC_PARAM_H
-#define _ASMPARISC_PARAM_H
-
-#ifdef __KERNEL__
-#define HZ		CONFIG_HZ
-#define USER_HZ		100		/* some user API use "ticks" */
-#define CLOCKS_PER_SEC	(USER_HZ)	/* like times() */
-#endif
-
-#ifndef HZ
-#define HZ 100
-#endif
-
-#define EXEC_PAGESIZE	4096
-
-#ifndef NOGROUP
-#define NOGROUP		(-1)
-#endif
-
-#define MAXHOSTNAMELEN	64	/* max length of hostname */

From - Thu Nov 08 21:05:28 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex wait failure
Date: Thu, 31 Dec 2009 17:38:31 -0500 (EST)
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To: carlos@systemhalted.org (Carlos O'Donell)
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> 
> On Tue, Dec 29, 2009 at 8:47 AM, Helge Deller <deller@gmx.de> wrote:
> >> 2) Change return space register to sr7. =A0sr3 is not set correctly
> >> if the entry number is invalid.
> >
> > Yep.
> >
> >> Have nasty suspicion that sr3 is getting hit...
> 
> Is the thought here that we take an interrupt, and sr3 is not
> guaranteed saved/restored, while sr7 is guaranteed?

sr3 isn't guaranteed because user could have changed its value.  So,
it is better to use sr7 for the return, particularly when lws entry
number isn't valid.

Regarding the handling of space registers during interruptions, they
are not saved.  syscall_exit_rfi restores them to proper values:

        /*
	 * If we aren't being traced, we never saved space registers
	 * (we don't store them in the sigcontext), so set them
	 * to "proper" values now (otherwise we'll wind up restoring
	 * whatever was last stored in the task structure, which might
	 * be inconsistent if an interrupt occured while on the gateway
	 * page). Note that we may be "trashing" values the user put in
	 * them, but we don't support the user changing them.
	*/

	STREG   %r0,PT_SR2(%r16)
	mfsp    %sr3,%r19
	STREG   %r19,PT_SR0(%r16)
	STREG   %r19,PT_SR1(%r16)
	STREG   %r19,PT_SR3(%r16)

As can be seen, sr2 set to the kernel space and sr3 to the user space.
This is consistent with the usage in the LWS code, so an interruption
shouldn't be a problem on most syscall returns via this path.  However,
execve doesn't restore the space register values (at least in this path).

The comment in the LWS code is a bit misleading:

        /* WARNING: Trashing sr2 and sr3 */
	mfsp    %sr7,%r1                        /* get userspace into sr3 */
	mtsp    %r1,%sr3
	mtsp    %r0,%sr2                        /* get kernel space into sr2 */

Actually, sr2 and sr3 are restored to their "proper" values.

The TLB code seems to assume a consistent use of sr3.  So, this may not
be a space register issue.

The syscall_restore uses a rsm/ssm pair to make the operation atomic.
Maybe we don't catch all situations where process is scheduled.

As an aside, it seems gdb doesn't print space registers correctly
when debugging a program.  I would guess this is because they are
not saved in the context.  It does print them from a core dump.

> I don't see anything wrong with moving the gate earlier (unless
> someone can come up with a case where an LWS may not want to gate).
> 
> It has the benefit of making the fast path 1 instruction shorter,
> however I don't see that it makes the implementation more correct.

I believe that it does have an effect.  See for example, the discussion
regarding delivery of signals to processes executing on the gateway page
in traps.c.  With the branch, it is possible that a signal could be
sent to a process executing on the gateway page.  See also space_check
macro in entry.S.  There's also the ptrace issue mentioned by Randolph.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Regarding the handling of space registers during interruptions, they
> are not saved.  syscall_exit_rfi restores them to proper values:

This is potentially an implementation bug, particularly with respect to
interruptions.   User space probably should have sr0-sr3 available to
do icache flushes, etc.  Currently, gcc uses sr0 for icache flushes.

It may be sr0 is never clobbered, but this isn't clear.  I'm fairly sure
HP-UX saves sr0-sr4 if necessary.

Possibly, the icache flush sequence should be changed for linux to not
use sr0.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: regression: crash from 'ls /sys/modules/wl1251_spi/notes'
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Cc: Kalle Valo <kalle.valo@iki.fi>, linux-kernel@vger.kernel.org,
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To: James Bottomley <James.Bottomley@hansenpartnership.com>
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On Wed, Dec 30, 2009 at 11:49 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Wed, 2009-12-30 at 13:41 +0200, Kalle Valo wrote:
>> Hello,
>>
>> I noticed weird crashes related to wl1251_spi notes sysfs directory
>> with current wireless-testing (2.6.33-rc2 plus some wireless patches=
).
>> The simplest way to reproduce the problem is to do this on a nokia n=
900
>> (arm/omap 3430):
>>
>> # ls /sys/module/wl1251_spi/notes/
>> [ 4776.503234] Unable to handle kernel NULL pointer dereference at
>> virtual address 00000000
>> [ 4776.511596] pgd =3D cce88000
>> [ 4776.514343] [00000000] *pgd=3D8f04a031, *pte=3D00000000, *ppte=3D=
00000000
>> [ 4776.520812] Internal error: Oops: 17 [#1]
>> [ 4776.524871] last sysfs file: /sys/class/net/wlan0/flags
>> [ 4776.530151] Modules linked in: wl1251_spi wl1251 mac80211 cfg8021=
1
>> [ 4776.536468] CPU: 0 =C2=A0 =C2=A0Not tainted =C2=A0(2.6.33-rc2-wl-=
47091-g981eb84
>> #12)
>> [ 4776.542999] PC is at strlen+0xc/0x20
>> [ 4776.546630] LR is at sysfs_readdir+0x15c/0x1e0
>> [ 4776.551116] pc : [<c01476ac>] =C2=A0 =C2=A0lr : [<c00f5e6c>] =C2=A0=
 =C2=A0psr: a0000013
>> [ 4776.551147] sp : cce87f28 =C2=A0ip : 22222222 =C2=A0fp : be99961c
>> [ 4776.562744] r10: cce87f80 =C2=A0r9 : 00000000 =C2=A0r8 : 00000000
>> [ 4776.568023] r7 : c00b9540 =C2=A0r6 : cce87f80 =C2=A0r5 : ccec4458=
 =C2=A0r4 :
>> ce808980
>> [ 4776.574615] r3 : 00000000 =C2=A0r2 : 00000002 =C2=A0r1 : 22222222=
 =C2=A0r0 :
>> 00000000
>> [ 4776.581207] Flags: NzCv =C2=A0IRQs on =C2=A0FIQs on =C2=A0Mode SV=
C_32 =C2=A0ISA ARM
>> Segment user
>> [ 4776.588409] Control: 10c5387d =C2=A0Table: 8ce88019 =C2=A0DAC: 00=
000015
>> [ 4776.594238] Process ls (pid: 1148, stack limit =3D 0xcce862e8)
>> [ 4776.599945] Stack: (0xcce87f28 to 0xcce88000)
>> [ 4776.604370] 7f20: =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 00000001 00000000 00000e16
>> 00000000 00000004 22222222
>> [ 4776.612640] 7f40: ce808980 ce808980 cf79e34c c00b9540 00000000
>> cf79e2b8 cce86000 c00b982c
>> [ 4776.620910] 7f60: 00000001 00000000 00001000 000690d0 ce808980
>> c002bae4 00000000 c00b98c4
>> [ 4776.629180] 7f80: 00069100 000690e8 00000fd0 ffffffea 00000000
>> 00000000 00000000 00000000
>> [ 4776.637451] 7fa0: 000000d9 c002b940 00000000 00000000 00000003
>> 000690d0 00001000 00000000
>> [ 4776.645721] 7fc0: 00000000 00000000 00000000 000000d9 000690c8
>> 00000001 00000000 be99961c
>> [ 4776.654022] 7fe0: 400ef954 be999614 400efa10 400ef908 60000010
>> 00000003 80c69021 80c69421
>> [ 4776.662292] [<c01476ac>] (strlen+0xc/0x20) from [<c00f5e6c>]
>> (sysfs_readdir+0x15c/0x1e0)
>> [ 4776.670501] [<c00f5e6c>] (sysfs_readdir+0x15c/0x1e0) from
>> [<c00b982c>] (vfs_readdir+0x80/0xb4)
>> [ 4776.679229] [<c00b982c>] (vfs_readdir+0x80/0xb4) from [<c00b98c4>=
]
>> (sys_getdents64+0x64/0xb4)
>> [ 4776.687866] [<c00b98c4>] (sys_getdents64+0x64/0xb4) from
>> [<c002b940>] (ret_fast_syscall+0x0/0x38)
>> [ 4776.696838] Code: c027700c e1a03000 ea000000 e2833001 (e5d32000)
>> [ 4776.703063] ---[ end trace 6a3b0fdf4e9def99 ]---
>> [ 4776.707794] Kernel panic - not syncing: Fatal exception
>
>> Also removing wl1251_spi causes a crash. The reason for this is that=
 a
>> sysfs file with a null string as name is trying to be removed from t=
he
>> notes directory.
>
> Yes, this is because the notes sections describe the text sections.
> When we ignore an empty text section, we'd need to ignore its
> corresponding notes section.
>
> The reason we didn't see this on parisc is because our compiler doesn=
't
> actually produce any notes sections.
>
>> I found out that reverting this patch solves the problem:
>>
>> =C2=A0 commit 35dead4235e2b67da7275b4122fed37099c2f462
>> =C2=A0 Author: Helge Deller <deller@gmx.de>
>> =C2=A0 Date: =C2=A0 Thu Dec 3 00:29:15 2009 +0100
>>
>> =C2=A0 =C2=A0 modules: don't export section names of empty sections =
via sysfs
>>
>> =C2=A0 =C2=A0 On the parisc architecture we face for each and every =
loaded
>> =C2=A0 =C2=A0 kernel module this kernel "badness warning":
>>
>> =C2=A0 =C2=A0 =C2=A0 sysfs: cannot create duplicate filename
>> =C2=A0 =C2=A0 '/module/ac97_bus/sections/.text'
>> =C2=A0 =C2=A0 =C2=A0 Badness at fs/sysfs/dir.c:487
>>
>> =C2=A0 =C2=A0 Reason for that is, that on parisc all kernel modules =
do have
>> =C2=A0 =C2=A0 multiple .text sections due to the usage of the
>> =C2=A0 =C2=A0 -ffunction-sections compiler flag which is needed to r=
each all
>> =C2=A0 =C2=A0 jump targets on this platform.
>>
>> =C2=A0 =C2=A0 An objdump on such a kernel module gives:
>> =C2=A0 =C2=A0 Sections:
>> =C2=A0 =C2=A0 Idx Name =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Size =C2=A0=
 =C2=A0 =C2=A0VMA =C2=A0 =C2=A0 =C2=A0 LMA =C2=A0 =C2=A0 =C2=A0 File of=
f =C2=A0Algn
>> =C2=A0 =C2=A0 =C2=A0 0 .note.gnu.build-id 00000024 =C2=A000000000 =C2=
=A000000000 =C2=A000000034
>> =C2=A0 =C2=A0 2**2
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 CONTENTS, ALLOC, LOAD, READONLY, DATA
>> =C2=A0 =C2=A0 =C2=A0 1 .text =C2=A0 =C2=A0 =C2=A0 =C2=A0 00000000 =C2=
=A000000000 =C2=A000000000 =C2=A000000058 =C2=A02**0
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 CONTENTS, ALLOC, LOAD, READONLY, CODE
>> =C2=A0 =C2=A0 =C2=A0 2 .text.ac97_bus_match 0000001c =C2=A000000000 =
=C2=A000000000 =C2=A000000058
>> =C2=A0 =C2=A0 2**2
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 CONTENTS, ALLOC, LOAD, READONLY, CODE
>> =C2=A0 =C2=A0 =C2=A0 3 .text =C2=A0 =C2=A0 =C2=A0 =C2=A0 00000000 =C2=
=A000000000 =C2=A000000000 =C2=A0000000d4 =C2=A02**0
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 CONTENTS, ALLOC, LOAD, READONLY, CODE
>> =C2=A0 =C2=A0 ...
>> =C2=A0 =C2=A0 Since the .text sections are empty (size of 0 bytes) a=
nd won't be
>> =C2=A0 =C2=A0 loaded by the kernel module loader anyway, I don't see=
 a reason
>> =C2=A0 =C2=A0 why such sections need to be listed under
>> =C2=A0 =C2=A0 /sys/module/<module_name>/sections/<section_name> eith=
er.
>>
>> =C2=A0 =C2=A0 The attached patch does solve this issue by not export=
ing section
>> =C2=A0 =C2=A0 names which are empty.
>>
>> =C2=A0 =C2=A0 This fixes bugzilla
>> =C2=A0 =C2=A0 http://bugzilla.kernel.org/show_bug.cgi?id=3D14703
>>
>> =C2=A0 =C2=A0 Signed-off-by: Helge Deller <deller@gmx.de>
>> =C2=A0 =C2=A0 CC: rusty@rustcorp.com.au
>> =C2=A0 =C2=A0 CC: akpm@linux-foundation.org
>> =C2=A0 =C2=A0 CC: James.Bottomley@HansenPartnership.com
>> =C2=A0 =C2=A0 CC: roland@redhat.com
>> =C2=A0 =C2=A0 CC: dave@hiauly1.hia.nrc.ca
>> =C2=A0 =C2=A0 Signed-off-by: Linus Torvalds <torvalds@linux-foundati=
on.org>
>>
>> I was also able to reproduce the problem with vanilla 2.6.32. I'm
>> pretty sure (but haven't tested) that 2.6.32-rc8 does not have this
>> problem.
>>
>> My original mail containing more info:
>>
>> http://www.spinics.net/lists/linux-wireless/msg44863.html
>>
>> Simple bandaid patch below fixes the problem. I know it's not a prop=
er
>> solution, but hopefully makes it easier to understand the problem.
>> Unfortunately my knowledge about ELF is too limited to fix this
>> properly, but I can provide more information as needed. Or even try =
to
>> fix it myself if someone else holds my hand :)
>>
>> --- a/kernel/module.c
>> +++ b/kernel/module.c
>> @@ -1189,10 +1189,13 @@ static void add_notes_attrs(struct module
>> *mod, unsigned int nsect,
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (!notes_attrs->dir)
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 goto out;
>>
>> - =C2=A0 =C2=A0 =C2=A0 for (i =3D 0; i < notes; ++i)
>> + =C2=A0 =C2=A0 =C2=A0 for (i =3D 0; i < notes; ++i) {
>> + =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (WARN_ON(!note=
s_attrs->attrs[i].attr.name))
>> + =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 continue;
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (sysfs_cr=
eate_bin_file(notes_attrs->dir,
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 &notes_attrs->attrs[i]))
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 goto out;
>> + =C2=A0 =C2=A0 =C2=A0 }
>>
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0 mod->notes_attrs =3D notes_attrs;
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0 return;
>
> A better, and more comprehensive patch would be to try not to count t=
he
> empty text sections when we're building the notes section (and actual=
ly
> anywhere else in the file). =C2=A0This patch actually relies on the f=
act that
> if sh_size is zero for the text section it should be for the
> corresponding notes section. =C2=A0If that doesn't work, we'd actuall=
y have
> to do the matching in the construction piece.
>
> Can you try it to see if it works for you? =C2=A0If it doesn't, I'll =
try
> matching notes to text. =C2=A0It works fine on parisc, but as we don'=
t have a
> notes section, that's not saying much ...
>
> Thanks,
>
> James
>


This patch looks fine for me, except that I don't think it's necessary
to introduce an inline function for that...

Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>

Thanks!

> ---
>
> diff --git a/kernel/module.c b/kernel/module.c
> index e96b8ed..957f912 100644
> --- a/kernel/module.c
> +++ b/kernel/module.c
> @@ -132,6 +132,11 @@ void __module_put_and_exit(struct module *mod, l=
ong code)
> =C2=A0}
> =C2=A0EXPORT_SYMBOL(__module_put_and_exit);
>
> +static inline int section_allocated(Elf_Shdr hdr)
> +{
> + =C2=A0 =C2=A0 =C2=A0 return (hdr.sh_flags & SHF_ALLOC) && hdr.sh_si=
ze !=3D 0;
> +}
> +
> =C2=A0/* Find a module section: 0 means not found. */
> =C2=A0static unsigned int find_sec(Elf_Ehdr *hdr,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Elf_Shdr *sechdrs,
> @@ -142,7 +147,7 @@ static unsigned int find_sec(Elf_Ehdr *hdr,
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0for (i =3D 1; i < hdr->e_shnum; i++)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0/* Alloc bit c=
leared means "ignore it." */
> - =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if ((sechdrs[i].sh=
_flags & SHF_ALLOC)
> + =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (section_alloca=
ted(sechdrs[i])
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
&& strcmp(secstrings+sechdrs[i].sh_name, name) =3D=3D 0)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0return i;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0return 0;
> @@ -1051,8 +1056,7 @@ static void add_sect_attrs(struct module *mod, =
unsigned int nsect,
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0/* Count loaded sections and allocate stru=
ctures */
> =C2=A0 =C2=A0 =C2=A0 =C2=A0for (i =3D 0; i < nsect; i++)
> - =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (sechdrs[i].sh_=
flags & SHF_ALLOC
> - =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 && s=
echdrs[i].sh_size)
> + =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (section_alloca=
ted(sechdrs[i]))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0nloaded++;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0size[0] =3D ALIGN(sizeof(*sect_attrs)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0+ nloaded * sizeof(sect_attrs->attrs[0]),
> @@ -1070,9 +1074,7 @@ static void add_sect_attrs(struct module *mod, =
unsigned int nsect,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0sattr =3D &sect_attrs->attrs[0];
> =C2=A0 =C2=A0 =C2=A0 =C2=A0gattr =3D &sect_attrs->grp.attrs[0];
> =C2=A0 =C2=A0 =C2=A0 =C2=A0for (i =3D 0; i < nsect; i++) {
> - =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (! (sechdrs[i].=
sh_flags & SHF_ALLOC))
> - =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 continue;
> - =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (!sechdrs[i].sh=
_size)
> + =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (!section_alloc=
ated(sechdrs[i]))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0continue;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0sattr->address=
 =3D sechdrs[i].sh_addr;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0sattr->name =3D=
 kstrdup(secstrings + sechdrs[i].sh_name,
> @@ -1156,7 +1158,7 @@ static void add_notes_attrs(struct module *mod,=
 unsigned int nsect,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0/* Count notes sections and allocate struc=
tures. =C2=A0*/
> =C2=A0 =C2=A0 =C2=A0 =C2=A0notes =3D 0;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0for (i =3D 0; i < nsect; i++)
> - =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if ((sechdrs[i].sh=
_flags & SHF_ALLOC) &&
> + =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (section_alloca=
ted(sechdrs[i]) &&
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
(sechdrs[i].sh_type =3D=3D SHT_NOTE))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0++notes;
>
> @@ -1172,7 +1174,7 @@ static void add_notes_attrs(struct module *mod,=
 unsigned int nsect,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0notes_attrs->notes =3D notes;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0nattr =3D &notes_attrs->attrs[0];
> =C2=A0 =C2=A0 =C2=A0 =C2=A0for (loaded =3D i =3D 0; i < nsect; ++i) {
> - =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (!(sechdrs[i].s=
h_flags & SHF_ALLOC))
> + =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (!section_alloc=
ated(sechdrs[i]))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0continue;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0if (sechdrs[i]=
=2Esh_type =3D=3D SHT_NOTE) {
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0nattr->attr.name =3D mod->sect_attrs->attrs[loaded].name;
> @@ -1720,7 +1722,7 @@ static char elf_type(const Elf_Sym *sym,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0return '?';
> =C2=A0 =C2=A0 =C2=A0 =C2=A0if (sechdrs[sym->st_shndx].sh_flags & SHF_=
EXECINSTR)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0return 't';
> - =C2=A0 =C2=A0 =C2=A0 if (sechdrs[sym->st_shndx].sh_flags & SHF_ALLO=
C
> + =C2=A0 =C2=A0 =C2=A0 if (section_allocated(sechdrs[sym->st_shndx])
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0&& sechdrs[sym->st_shndx].sh=
_type !=3D SHT_NOBITS) {
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0if (!(sechdrs[=
sym->st_shndx].sh_flags & SHF_WRITE))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0return 'r';
> @@ -1751,7 +1753,7 @@ static bool is_core_symbol(const Elf_Sym *src, =
const Elf_Shdr *sechdrs,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0return false;
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0sec =3D sechdrs + src->st_shndx;
> - =C2=A0 =C2=A0 =C2=A0 if (!(sec->sh_flags & SHF_ALLOC)
> + =C2=A0 =C2=A0 =C2=A0 if (!section_allocated(*sec)
> =C2=A0#ifndef CONFIG_KALLSYMS_ALL
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|| !(sec->sh_flags & SHF_EXE=
CINSTR)
> =C2=A0#endif
> @@ -1913,7 +1915,7 @@ static void kmemleak_load_module(struct module =
*mod, Elf_Ehdr *hdr,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0kmemleak_scan_area(mod, sizeof(struct modu=
le), GFP_KERNEL);
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0for (i =3D 1; i < hdr->e_shnum; i++) {
> - =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (!(sechdrs[i].s=
h_flags & SHF_ALLOC))
> + =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (!section_alloc=
ated(sechdrs[i]))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0continue;
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0if (strncmp(se=
cstrings + sechdrs[i].sh_name, ".data", 5) !=3D 0
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
&& strncmp(secstrings + sechdrs[i].sh_name, ".bss", 4) !=3D 0)
> @@ -2139,7 +2141,7 @@ static noinline struct module *load_module(void=
 __user *umod,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0for (i =3D 0; i < hdr->e_shnum; i++) {
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0void *dest;
>
> - =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (!(sechdrs[i].s=
h_flags & SHF_ALLOC))
> + =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (!section_alloc=
ated(sechdrs[i]))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0continue;
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0if (sechdrs[i]=
=2Esh_entsize & INIT_OFFSET_MASK)
> @@ -2287,7 +2289,7 @@ static noinline struct module *load_module(void=
 __user *umod,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0continue;
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0/* Don't bothe=
r with non-allocated sections */
> - =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (!(sechdrs[info=
].sh_flags & SHF_ALLOC))
> + =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (!section_alloc=
ated(sechdrs[info]))
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0continue;
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0if (sechdrs[i]=
=2Esh_type =3D=3D SHT_REL)
>
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Subject: Re: futex wait failure
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> I tested the patch and the testcase in
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=561203
> still segfaults.

I think the expect/tcl bug and the bug 561203 are related.  Looking
at the minifail core dump, I see:

Core was generated by `./minifail'.
Program terminated with signal 11, Segmentation fault.
#0  0x00000000 in ?? ()

So, how did we get to 0?  $rp is 0, so we might have executed a
return to this location.  $r31 conains 0x4157cc4f.

(gdb) disass 0x4157cc3c 0x4157cc5c
Dump of assembler code from 0x4157cc3c to 0x4157cc5c:
0x4157cc3c <_IO_puts+332>:      copy rp,r25
0x4157cc40 <_IO_puts+336>:      copy r6,r24
0x4157cc44 <_IO_puts+340>:      be,l b0(sr2,r0),sr0,r31
0x4157cc48 <_IO_puts+344>:      ldi 0,r20
0x4157cc4c <_IO_puts+348>:      ldi -b,r24
0x4157cc50 <_IO_puts+352>:      cmpb,=,n r24,r21,0x4157cc38 <_IO_puts+328>
0x4157cc54 <_IO_puts+356>:      nop
0x4157cc58 <_IO_puts+360>:      ldi -2d,r25

So, it would see $r31 was last set by a call to the lws code.

(gdb) info thread
  2 Thread 2397  *__GI__IO_list_lock () at genops.c:1297
* 1 Thread 2398  0x00000000 in ?? ()

(gdb) thread 2
[Switching to thread 2 (Thread 2397)]#0  *__GI__IO_list_lock ()
    at genops.c:1297
1297    genops.c: No such file or directory.
        in genops.c
(gdb) bt
#0  *__GI__IO_list_lock () at genops.c:1297
#1  0x415c06d0 in __libc_fork () at ../nptl/sysdeps/unix/sysv/linux/fork.c:117
#2  0x00011068 in pure_test () at minifail.cpp:55
#3  0x00011350 in main (argc=1, argv=0xc0497028) at minifail.cpp:80

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Core was generated by `./minifail'.
> Program terminated with signal 11, Segmentation fault.
> #0  0x00000000 in ?? ()

I wasn't able to duplicate the above running minifail under gdb.
However, I did eventually get it to hang.

(gdb) info thread
  2 Thread 0x42169480 (LWP 3246)  0x40240760 in start_thread (arg=0x42169480)
    at pthread_create.c:293
* 1 Thread 0x400040c0 (LWP 3245)  0x40240c2c in pthread_join (
  threadid=1108776064, thread_return=0x0) at pthread_join.c:89
(gdb) bt
#0  0x40240c2c in pthread_join (threadid=1108776064, thread_return=0x0)
    at pthread_join.c:89
#1  0x00011118 in pure_test () at minifail.cpp:70
#2  0x00011350 in main (argc=1, argv=0xbffd3020) at minifail.cpp:80
(gdb) disass 0x40240c1c 0x40240c3c
Dump of assembler code from 0x40240c1c to 0x40240c3c:
0x40240c1c <pthread_join+268>:  copy r3,r26
0x40240c20 <pthread_join+272>:  copy r19,r4
0x40240c24 <pthread_join+276>:  be,l 100(sr2,r0),sr0,r31
0x40240c28 <pthread_join+280>:  ldi d2,r20
0x40240c2c <pthread_join+284>:  copy r4,r19
0x40240c30 <pthread_join+288>:  ldw 68(r5),r24
0x40240c34 <pthread_join+292>:  cmpib,<> 0,r24,0x40240c18 <pthread_join+264>
0x40240c38 <pthread_join+296>:  ldi 0,r23
End of assembler dump.

So, thread 1 is in a syscall.

(gdb) thread 2
[Switching to thread 2 (Thread 0x42169480 (LWP 3246))]#0  0x40240760 in start_thread (arg=0x42169480) at pthread_create.c:293
293     pthread_create.c: No such file or directory.
        in pthread_create.c
(gdb) bt
#0  0x40240760 in start_thread (arg=0x42169480) at pthread_create.c:293
#1  0x412082bc in clone () from /lib/libc.so.6
#2  0x00000000 in ?? ()
(gdb) disass 0x40240760 0x402407a0
Dump of assembler code from 0x40240754 to 0x402407a8:
0x40240754 <start_thread+1108>: ldw 214(ret0),rp
0x40240758 <start_thread+1112>: copy r3,r26
0x40240760 <start_thread+1120>: copy r4,r24
0x40240764 <start_thread+1124>: be,l b0(sr2,r0),sr0,r31
0x40240768 <start_thread+1128>: ldi 0,r20
0x4024076c <start_thread+1132>: ldi -b,r24
0x40240770 <start_thread+1136>: cmpb,=,n r24,r21,0x40240758 <start_thread+1112>
0x40240774 <start_thread+1140>: nop
0x40240778 <start_thread+1144>: ldi -2d,r25
0x4024077c <start_thread+1148>: cmpb,=,n r25,r21,0x40240758 <start_thread+1112>
0x40240780 <start_thread+1152>: nop
0x40240784 <start_thread+1156>: stw ret0,-1b8(sp)
0x40240788 <start_thread+1160>: sub r0,r21,r21
0x4024078c <start_thread+1164>: stw r21,-1b4(sp)
0x40240790 <start_thread+1168>: ldw -1b4(sp),ret1
0x40240794 <start_thread+1172>: cmpib,=,n e,ret1,0x40240804 <start_thread+1284>
0x40240798 <start_thread+1176>: ldw -1b4(sp),ret0
0x4024079c <start_thread+1180>: cmpb,=,n r5,ret0,0x40240804 <start_thread+1284>
0x402407a0 <start_thread+1184>: ldw -1b8(sp),ret0
0x402407a4 <start_thread+1188>: cmpb,<> ret0,rp,0x40240754 <start_thread+1108>

Thread 2 is in a loop calling the lws code.

(gdb) p/x $rp
$5 = 0x0
(gdb) p/x $ret0
$6 = 0x42169480

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Fri, 2010-01-01 at 11:08 +0800, Am=C3=A9rico Wang wrote:
> This patch looks fine for me, except that I don't think it's necessar=
y
> to introduce an inline function for that...

Actually, I really think we do.  The whole reason we got into this mess
in the first place is that it wasn't obvious from the code that if we
altered the loadability of sections, there were a ton of dependent
places we also had to update.  Putting all that knowledge into a single
inline makes the same mistake impossible to make because there's now
only one place to go to adjust the loadability of sections, and it
automatically takes care of all the dependencies.

> Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>

Thanks,

James


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On Thu, 2009-12-24 at 05:39 -0700, Matthew Wilcox wrote:
> 
> invalidates the processor cache for a given virtual address range
> in the vmap area.  This API addresses the problem that the processor
> may have performed speculative reads into its cache of the vmapped
> area while I/O was occurring to the underlying physical pages.
> 
> Signed-off-by: Matthew Wilcox <willy@linux.intel.com>

Interestingly, our DMA APIs in this regard are sub-optimal as they
should provide 3 hooks, not 2.

Flush is good for ensuring dirty lines have been pushed out before an
outgoing DMA.

But for incoming DMA it would be nice to properly split the 2 calls that
may be needed on some archs, one before, one after the transfer. Sure,
invalidate twice will "work" but the f will also be sub-optimal on some
platforms depending on whether the platform is known to be able or not
to speculatively load cache lines etc...

Maybe just a "before" vs. "after" argument ?

Also, the proposal goes contrary to most of our DMA APIs which don't
actually expose the details of invalidate vs. flush but instead expose
the direction of the transfer (both lack the above subtlety though).

Thoughts ?

Cheers,
Ben.



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On Wed, 2009-12-23 at 15:22 -0600, James Bottomley wrote:
>  #define flush_kernel_dcache_range(start,size) \
>         flush_kernel_dcache_range_asm((start), (start)+(size));
> +/* vmap range flushes and invalidates.  Architecturally, we don't need
> + * the invalidate, because the CPU should refuse to speculate once an
> + * area has been flushed, so invalidate is left empty */
> +static inline void flush_kernel_vmap_range(void *vaddr, int size)
> +{
> +       unsigned long start = (unsigned long)vaddr;
> +
> +       flush_kernel_dcache_range_asm(start, start + size);
> +}
> +static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
> +{
> +}

Do I understand correctly that for an inbound DMA you will first call
flush before starting the DMA, then invalidate at the end of the
transfer ?

See my other message on that subject but I believe this is a sub-optimal
semantic. I'd rather expose separately dma_vmap_sync_outbound vs.
dma_vma_sync_inboud_before vs. dma_vma_sync_inboud_after.

On quite a few archs, an invalidate is a lot faster than a flush (since
it doesn't require a writeback of potentially useless crap to memory)
and for an inbound transfer that doesn't cross cache line boundaries,
invalidate is all that's needed for both before and after. On 44x
additionally I don't need "after" since the core is too dumb to prefetch
(or rather it's disabled due to erratas).

Cheers,
Ben.


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From - Thu Nov 08 21:05:30 2018
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On Sun, 2010-01-03 at 08:33 +1100, Benjamin Herrenschmidt wrote:
> On Wed, 2009-12-23 at 15:22 -0600, James Bottomley wrote:
> >  #define flush_kernel_dcache_range(start,size) \
> >         flush_kernel_dcache_range_asm((start), (start)+(size));
> > +/* vmap range flushes and invalidates.  Architecturally, we don't need
> > + * the invalidate, because the CPU should refuse to speculate once an
> > + * area has been flushed, so invalidate is left empty */
> > +static inline void flush_kernel_vmap_range(void *vaddr, int size)
> > +{
> > +       unsigned long start = (unsigned long)vaddr;
> > +
> > +       flush_kernel_dcache_range_asm(start, start + size);
> > +}
> > +static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
> > +{
> > +}
> 
> Do I understand correctly that for an inbound DMA you will first call
> flush before starting the DMA, then invalidate at the end of the
> transfer ?
> 
> See my other message on that subject but I believe this is a sub-optimal
> semantic. I'd rather expose separately dma_vmap_sync_outbound vs.
> dma_vma_sync_inboud_before vs. dma_vma_sync_inboud_after.

Well, this is such a micro optimisation, is it really worth it?

If I map exactly to architectural operations, it's flush (without
invalidate if possible) before an outbound DMA transfer and nothing
after.  For inbound, it's invalidate before and after (the after only
assuming the architecture can do speculative move in), but doing a flush
first instead of an invalidate on DMA inbound produces a correct result
on architectures I know about.

> On quite a few archs, an invalidate is a lot faster than a flush (since
> it doesn't require a writeback of potentially useless crap to memory)
> and for an inbound transfer that doesn't cross cache line boundaries,
> invalidate is all that's needed for both before and after. On 44x
> additionally I don't need "after" since the core is too dumb to prefetch
> (or rather it's disabled due to erratas).

Your logic assumes the cache line is dirty.  If you look at the XFS
usage, it never seems to do local modifications on a read, so the line
should be clean.  At least on parisc, a flush of a clean cache line is
exactly equivalent to an invalidate.  Even if there's some write into
the read area in xfs I've missed, it's only a few extra cycles because
the lines are mostly clean.

James



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On Sun, 2010-01-03 at 08:27 +1100, Benjamin Herrenschmidt wrote:
> On Thu, 2009-12-24 at 05:39 -0700, Matthew Wilcox wrote:
> > 
> > invalidates the processor cache for a given virtual address range
> > in the vmap area.  This API addresses the problem that the processor
> > may have performed speculative reads into its cache of the vmapped
> > area while I/O was occurring to the underlying physical pages.
> > 
> > Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
> 
> Interestingly, our DMA APIs in this regard are sub-optimal as they
> should provide 3 hooks, not 2.
> 
> Flush is good for ensuring dirty lines have been pushed out before an
> outgoing DMA.
> 
> But for incoming DMA it would be nice to properly split the 2 calls that
> may be needed on some archs, one before, one after the transfer. Sure,
> invalidate twice will "work" but the f will also be sub-optimal on some
> platforms depending on whether the platform is known to be able or not
> to speculatively load cache lines etc...
> 
> Maybe just a "before" vs. "after" argument ?
> 
> Also, the proposal goes contrary to most of our DMA APIs which don't
> actually expose the details of invalidate vs. flush but instead expose
> the direction of the transfer (both lack the above subtlety though).
> 
> Thoughts ?

Well, that's the result of the email thread.  XFS is poking deeply into
architectural issues by trying to do I/O on a vmap area.  I thought the
consensus was that if xfs wants to do that then it takes complete
responsibility for coherence rather than trying to hide it in a block
API.

James



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On Sat, 2010-01-02 at 15:53 -0600, James Bottomley wrote:
> 
> > See my other message on that subject but I believe this is a
> sub-optimal
> > semantic. I'd rather expose separately dma_vmap_sync_outbound vs.
> > dma_vma_sync_inboud_before vs. dma_vma_sync_inboud_after.
> 
> Well, this is such a micro optimisation, is it really worth it?

It's not that "micro" in the sense that flush can take significantly
longer than invalidate. Mostly a non issue except in network.... most
non cache coherent systems are low end and pretty sensitive to that sort
of stuff, especially when used as ... routers :-) But yes, it probably
doesn't matter in your current case of XFS vmap, I was mostly trying to
push toward generically exposing finer interfaces :-) And god knows
who'll use your vmap DMA APIs in the future.

> If I map exactly to architectural operations, it's flush (without
> invalidate if possible) before an outbound DMA transfer and nothing
> after.  For inbound, it's invalidate before and after (the after only
> assuming the architecture can do speculative move in), but doing a
> flush first instead of an invalidate on DMA inbound produces a correct
> result on architectures I know about.

It is correct. Just sub-optimal ;-) However it does handle another quirk
which is side effect on "edges". If all is well, the DMA buffer is
completely self contained in its own cache lines but experience shows
that isn't always the case and it might share a cache line on the edges
(typical with skb's).

This is of course utterly broken except in one case (which I -think- is
the case with skb's) where the data sharing the cache line isn't
accessed during the DMA transfer.

However, for that to work, as you can see, one needs to flush and not
invalidate the "edge" cache lines before the inbound transfer. So your
approach of flush + invalidate is "safer". But I'd still rather have the
semantic exposed at a higher level so that arch can decide what to use
and allow for the micro-optimisation...

> Your logic assumes the cache line is dirty.  If you look at the XFS
> usage, it never seems to do local modifications on a read, so the line
> should be clean.  At least on parisc, a flush of a clean cache line is
> exactly equivalent to an invalidate.  Even if there's some write into
> the read area in xfs I've missed, it's only a few extra cycles because
> the lines are mostly clean.

Right, in your case of vmap, it doesn't seem to be a big deal, but heh,
somebody is bound to use it again for something else right ? :-)

Anyways, just some thoughts I've been having about DMA APIs in general,
I don't say we must change it now, especially not the existing ones, but
for a -new- API like that I would have preferred if it exposed a richer
semantic from day 1.

Cheers,
Ben.

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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCHv2 1/5] mm: add coherence API for DMA to vmalloc/vmap
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On Sat, 2010-01-02 at 15:54 -0600, James Bottomley wrote:
> Well, that's the result of the email thread.  XFS is poking deeply into
> architectural issues by trying to do I/O on a vmap area.  I thought the
> consensus was that if xfs wants to do that then it takes complete
> responsibility for coherence rather than trying to hide it in a block
> API.

Well, maybe ... Mostly my comment was about the "other" (standard) DMA
APIs, ie, the work you do for XFS just reminded me of that issue I've
been thinking about :-)

Cheers,
Ben.


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From: Ben Hutchings <ben@decadent.org.uk>
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Subject: Unexpected behaviour of idr_get_empty_slot() on parisc
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Ryan Niebur reported in <http://bugs.debian.org/561880> that on a
PA-RISC system running Linux 2.6.32 the following test case for inotify:

#include <sys/inotify.h>
#include <stdio.h>

int main()
{
    int fd, wd;

    fd =3D inotify_init ();
    wd =3D inotify_add_watch (fd,
                            "test.c",
                            IN_OPEN | IN_CLOSE);
    printf("First: %d\n", wd);
    inotify_rm_watch(fd, wd);
    wd =3D inotify_add_watch (fd,
                            "a.out",
                            IN_OPEN | IN_CLOSE);
    printf("Second: %d\n", wd);
    inotify_rm_watch(fd, wd);
}

produces the output:

First: 1
Second: 1

The behaviour he (and the test case's author) expects is that ids for
closed descriptors are not reused and the second id will be 2.  The
implementation does seem to ensure that:

static int inotify_handle_get_wd(struct inotify_handle *ih,
				 struct inotify_watch *watch)
{
	int ret;

	do {
		if (unlikely(!idr_pre_get(&ih->idr, GFP_NOFS)))
			return -ENOSPC;
		ret =3D idr_get_new_above(&ih->idr, watch, ih->last_wd+1, &watch->wd);
	} while (ret =3D=3D -EAGAIN);

	if (likely(!ret))
		ih->last_wd =3D watch->wd;

	return ret;
}

Removing the inotify_rm_watch() calls from the test case results in the
expected output, so I have no reason to think that id can be assigned
while it is already in use.  However, it does appear that
idr_get_empty_slot() can somehow select an id smaller than starting_id.

Ben.

--=20
Ben Hutchings
The obvious mathematical breakthrough [to break modern encryption] would be
development of an easy way to factor large prime numbers. - Bill Gates

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From - Thu Nov 08 21:05:30 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Unexpected behaviour of idr_get_empty_slot() on parisc
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On Sun, Jan 03, 2010 at 11:23:25PM +0000, Ben Hutchings wrote:
> Ryan Niebur reported in <http://bugs.debian.org/561880> that on a
> PA-RISC system running Linux 2.6.32 the following test case for inotify:
> 

I bet this is because classic RCU is removed, and tree RCU was
insufficiently tested on crap platforms before the removal.

I'll try to re-add it and we can see if it's an RCU problem or something
nastier.
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> > I tested the patch and the testcase in
> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D561203
> > still segfaults.
>=20
> I think the expect/tcl bug and the bug 561203 are related.  Looking
> at the minifail core dump, I see:
>=20
> Core was generated by `./minifail'.
> Program terminated with signal 11, Segmentation fault.
> #0  0x00000000 in ?? ()
>=20
> So, how did we get to 0?  $rp is 0, so we might have executed a
> return to this location.  $r31 conains 0x4157cc4f.
>=20
> (gdb) disass 0x4157cc3c 0x4157cc5c
> Dump of assembler code from 0x4157cc3c to 0x4157cc5c:
> 0x4157cc3c <_IO_puts+332>:      copy rp,r25
> 0x4157cc40 <_IO_puts+336>:      copy r6,r24
> 0x4157cc44 <_IO_puts+340>:      be,l b0(sr2,r0),sr0,r31
> 0x4157cc48 <_IO_puts+344>:      ldi 0,r20
> 0x4157cc4c <_IO_puts+348>:      ldi -b,r24
> 0x4157cc50 <_IO_puts+352>:      cmpb,=3D,n r24,r21,0x4157cc38 <_IO_pu=
ts+328>
> 0x4157cc54 <_IO_puts+356>:      nop
> 0x4157cc58 <_IO_puts+360>:      ldi -2d,r25


I think I have an idea what could have happened and why it most of the =
times (but not always) crashes in the child process...

In ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h we have:
#define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \
  ({                                                                   =
 \
     volatile int lws_errno;                                           =
 \
     volatile int lws_ret;                                             =
 \
     asm volatile(                                                     =
 \
=2E..some assembly...
        "stw    %%r28, %0                       \n\t"                  =
 \
        "sub    %%r0, %%r21, %%r21              \n\t"                  =
 \
        "stw    %%r21, %1                       \n\t"                  =
 \
        : "=3Dm" (lws_ret), "=3Dm" (lws_errno)                         =
     \
        : "r" (mem), "r" (oldval), "r" (newval)                        =
 \
        : _LWS_CLOBBER          =20

this means, that lws_errno and lws_ret are located on the stack.

With gdb I see this expanded to:
0x40705494 <start_thread+1204>: stw ret0,-1b8(sp)
0x40705498 <start_thread+1208>: sub r0,r21,r21
0x4070549c <start_thread+1212>: stw r21,-1b4(sp)

So, lws_ret/lws_errno are at -1b8/-1b4(sp).

And this LWS code is called from=20
=2E./nptl/sysdeps/pthread/createthread.c:
static int create_thread (struct pthread *pd, const struct pthread_attr=
 *attr, STACK_VARIABLES_PARMS)
=2E..
          int res =3D do_clone (pd, attr, clone_flags, start_thread,
                              STACK_VARIABLES_ARGS, 1);
          if (res =3D=3D 0)
            {
=2E..(line 216):
              /* Enqueue the descriptor.  */
              do
                pd->nextevent =3D __nptl_last_event;
              while (atomic_compare_and_exchange_bool_acq(&__nptl_last_=
event, pd, pd->nextevent) !=3D 0);


And here is what could have happened:
a) do_clone() creates the child process.
b) the child process gets a new stack
c) the child calls atomic_compare_and_exchange_bool_acq() and thus the =
LWS code above.
d) the LWS code writes to the stack location at -1b8(sp), which is out =
of bounds for the child process (the child stack got only ~ 0x40 bytes =
initial room)
e) Thus the child either crashes, overwrites memory of the parent or do=
es other things wrong.

Additionally:
Due to the LWS assembly code and because we don't have many registers f=
ree while using LWS, gcc used %rp as a temporary register which may hav=
e fooled us in our thinking?

0x40705458 <start_thread+1144>: ldi 0,rp
0x4070545c <start_thread+1148>: ldi fb,r3
0x40705460 <start_thread+1152>: ldw -70(sp),ret0
0x40705464 <start_thread+1156>: ldw 214(ret0),ret1
0x40705468 <start_thread+1160>: copy r5,r26
0x4070546c <start_thread+1164>: copy ret1,r25
0x40705470 <start_thread+1168>: copy rp,r24
0x40705474 <start_thread+1172>: be,l b0(sr2,r0),sr0,r31
0x40705478 <start_thread+1176>: ldi 0,r20
0x4070547c <start_thread+1180>: ldi -b,r24
0x40705480 <start_thread+1184>: cmpb,=3D,n r24,r21,0x40705468 <start_th=
read+1160>
0x40705484 <start_thread+1188>: nop
0x40705488 <start_thread+1192>: ldi -2d,r25
0x4070548c <start_thread+1196>: cmpb,=3D,n r25,r21,0x40705468 <start_th=
read+1160>
0x40705490 <start_thread+1200>: nop
0x40705494 <start_thread+1204>: stw ret0,-1b8(sp)
0x40705498 <start_thread+1208>: sub r0,r21,r21
0x4070549c <start_thread+1212>: stw r21,-1b4(sp)
0x407054a0 <start_thread+1216>: ldw -1b4(sp),ret0


If my assumptions are correct, then we either could

a) use the gcc atomic builtins instead of own atomic code in libc6:
E.g: add to ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h:
=2E..
#if __GNUC_PREREQ (4, 1)
# define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \
  __sync_val_compare_and_swap (mem, oldval, newval)
#  define atomic_compare_and_exchange_bool_acq(mem, newval, oldval) \
  (! __sync_bool_compare_and_swap (mem, oldval, newval))

#elif __ASSUME_LWS_CAS
=2E...

b) change the assembly in=20
atomic_compare_and_exchange_val_acq()
to not put it's local variables (lws_errno and lws_ret) on the stack.

I'm currently testing option a).

Helge
(PS: I used a webmailer, so the indenting might be strange...)
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On Mon, Jan 4, 2010 at 11:27 AM, Helge Deller <deller@gmx.de> wrote:
> I think I have an idea what could have happened and why it most of th=
e times (but not always) crashes in the child process...
>
> In ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h we have:
> #define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \
> =A0({ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
\
> =A0 =A0 volatile int lws_errno; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
> =A0 =A0 volatile int lws_ret; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
> =A0 =A0 asm volatile( =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
> ...some assembly...
> =A0 =A0 =A0 =A0"stw =A0 =A0%%r28, %0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 \n\t" =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
> =A0 =A0 =A0 =A0"sub =A0 =A0%%r0, %%r21, %%r21 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0\n\t" =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
> =A0 =A0 =A0 =A0"stw =A0 =A0%%r21, %1 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 \n\t" =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
> =A0 =A0 =A0 =A0: "=3Dm" (lws_ret), "=3Dm" (lws_errno) =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
> =A0 =A0 =A0 =A0: "r" (mem), "r" (oldval), "r" (newval) =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
> =A0 =A0 =A0 =A0: _LWS_CLOBBER
>
> this means, that lws_errno and lws_ret are located on the stack.

Correct. We could place them in registers if we wanted, they are
registers r28 (lws return) and r21 (lws error).

> With gdb I see this expanded to:
> 0x40705494 <start_thread+1204>: stw ret0,-1b8(sp)
> 0x40705498 <start_thread+1208>: sub r0,r21,r21
> 0x4070549c <start_thread+1212>: stw r21,-1b4(sp)
>
> So, lws_ret/lws_errno are at -1b8/-1b4(sp).

Correct.

> And this LWS code is called from
> ../nptl/sysdeps/pthread/createthread.c:
> static int create_thread (struct pthread *pd, const struct pthread_at=
tr *attr, STACK_VARIABLES_PARMS)
> ...
> =A0 =A0 =A0 =A0 =A0int res =3D do_clone (pd, attr, clone_flags, start=
_thread,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0STACK_VARI=
ABLES_ARGS, 1);
> =A0 =A0 =A0 =A0 =A0if (res =3D=3D 0)
> =A0 =A0 =A0 =A0 =A0 =A0{
> ...(line 216):
> =A0 =A0 =A0 =A0 =A0 =A0 =A0/* Enqueue the descriptor. =A0*/
> =A0 =A0 =A0 =A0 =A0 =A0 =A0do
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0pd->nextevent =3D __nptl_last_event;
> =A0 =A0 =A0 =A0 =A0 =A0 =A0while (atomic_compare_and_exchange_bool_ac=
q(&__nptl_last_event, pd, pd->nextevent) !=3D 0);
>
>
> And here is what could have happened:
> a) do_clone() creates the child process.
> b) the child process gets a new stack
> c) the child calls atomic_compare_and_exchange_bool_acq() and thus th=
e LWS code above.
> d) the LWS code writes to the stack location at -1b8(sp), which is ou=
t of bounds for the child process (the child stack got only ~ 0x40 byte=
s initial room)

This is wrong. Each thread should have 8MB of stack. If we only get ~
0x40 bytes then npt/nptl-init.c is setting __default_stacksize
incorrectly.

Even PTHREAD_STACK_MIN should be 16kb?

Could you verify that your assertion that only ~ 0x40 bytes of initial
room were allocated?

> e) Thus the child either crashes, overwrites memory of the parent or =
does other things wrong.

I agree with your analysis, but the error is that more stack should be
allocated.

Cheers,
Carlos.
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> I think I have an idea what could have happened and why it most of the times (but not always) crashes in the child process...
> 
> In ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h we have:
> #define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \
>   ({                                                                    \
>      volatile int lws_errno;                                            \
>      volatile int lws_ret;                                              \
>      asm volatile(                                                      \
> ...some assembly...
>         "stw    %%r28, %0                       \n\t"                   \
>         "sub    %%r0, %%r21, %%r21              \n\t"                   \
>         "stw    %%r21, %1                       \n\t"                   \
>         : "=m" (lws_ret), "=m" (lws_errno)                              \
>         : "r" (mem), "r" (oldval), "r" (newval)                         \
>         : _LWS_CLOBBER           
> 
> this means, that lws_errno and lws_ret are located on the stack.
> 
> With gdb I see this expanded to:
> 0x40705494 <start_thread+1204>: stw ret0,-1b8(sp)
> 0x40705498 <start_thread+1208>: sub r0,r21,r21
> 0x4070549c <start_thread+1212>: stw r21,-1b4(sp)
> 
> So, lws_ret/lws_errno are at -1b8/-1b4(sp).
> 
> And this LWS code is called from 
> ../nptl/sysdeps/pthread/createthread.c:
> static int create_thread (struct pthread *pd, const struct pthread_attr *attr, STACK_VARIABLES_PARMS)
> ...
>           int res = do_clone (pd, attr, clone_flags, start_thread,
>                               STACK_VARIABLES_ARGS, 1);
>           if (res == 0)
>             {
> ...(line 216):
>               /* Enqueue the descriptor.  */
>               do
>                 pd->nextevent = __nptl_last_event;
>               while (atomic_compare_and_exchange_bool_acq(&__nptl_last_event, pd, pd->nextevent) != 0);
> 
> 
> And here is what could have happened:
> a) do_clone() creates the child process.
> b) the child process gets a new stack
> c) the child calls atomic_compare_and_exchange_bool_acq() and thus the LWS code above.
> d) the LWS code writes to the stack location at -1b8(sp), which is out of bounds for the child process (the child stack got only ~ 0x40 bytes initial room)

I think the stack locations should be ok because start_thread allocates
an additional 0x1c0 bytes:

Dump of assembler code for function start_thread:
   0x40a40300 <+0>:     stw rp,-14(sp)
   0x40a40304 <+4>:     ldo 1c0(sp),sp

In all the fails I have looked at, the saved $rp value is clobbered.
The stack pointer value seems consistent with 0x40 + 0x1c0.  The data
placed at the beginning of the stack for the child thread is not clobbered.

> e) Thus the child either crashes, overwrites memory of the parent or does other things wrong.

I don't see how the forked child can affect the memory of the parent.
It can close files and affect the parent that way (child should use
_exit and not exit).

If the forked child actually overwrites memory of the parent, this is
a big bug in the linux fork code.

> Additionally:
> Due to the LWS assembly code and because we don't have many registers free while using LWS, gcc used %rp as a temporary register which may have fooled us in our thinking?

$rp is saved in the first instruction of start_thread.  So, its use
below should be ok.

> 0x40705458 <start_thread+1144>: ldi 0,rp
> 0x4070545c <start_thread+1148>: ldi fb,r3
> 0x40705460 <start_thread+1152>: ldw -70(sp),ret0
> 0x40705464 <start_thread+1156>: ldw 214(ret0),ret1
> 0x40705468 <start_thread+1160>: copy r5,r26
> 0x4070546c <start_thread+1164>: copy ret1,r25
> 0x40705470 <start_thread+1168>: copy rp,r24
> 0x40705474 <start_thread+1172>: be,l b0(sr2,r0),sr0,r31
> 0x40705478 <start_thread+1176>: ldi 0,r20
> 0x4070547c <start_thread+1180>: ldi -b,r24
> 0x40705480 <start_thread+1184>: cmpb,=,n r24,r21,0x40705468 <start_thread+1160>
> 0x40705484 <start_thread+1188>: nop
> 0x40705488 <start_thread+1192>: ldi -2d,r25
> 0x4070548c <start_thread+1196>: cmpb,=,n r25,r21,0x40705468 <start_thread+1160>
> 0x40705490 <start_thread+1200>: nop
> 0x40705494 <start_thread+1204>: stw ret0,-1b8(sp)
> 0x40705498 <start_thread+1208>: sub r0,r21,r21
> 0x4070549c <start_thread+1212>: stw r21,-1b4(sp)
> 0x407054a0 <start_thread+1216>: ldw -1b4(sp),ret0
> 
> 
> If my assumptions are correct, then we either could
> 
> a) use the gcc atomic builtins instead of own atomic code in libc6:
> E.g: add to ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h:
> ...
> #if __GNUC_PREREQ (4, 1)
> # define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \
>   __sync_val_compare_and_swap (mem, oldval, newval)
> #  define atomic_compare_and_exchange_bool_acq(mem, newval, oldval) \
>   (! __sync_bool_compare_and_swap (mem, oldval, newval))
> 
> #elif __ASSUME_LWS_CAS
> ....

There may be a bug in the gcc atomic builtins.  We shanged recently
to using the sync builtins in libstdc++.  Then, two fails appeared
recently that I haven't had time to look at:

WARNING: program timed out.
FAIL: 29_atomics/atomic_flag/clear/1.c execution test
FAIL: 29_atomics/atomic_flag/test_and_set/explicit.c execution test

That said, this is an interesting test.  Does it fix minifail?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Jan 4, 2010 at 12:32 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> e) Thus the child either crashes, overwrites memory of the parent or does other things wrong.
>
> I don't see how the forked child can affect the memory of the parent.
> It can close files and affect the parent that way (child should use
> _exit and not exit).
>
> If the forked child actually overwrites memory of the parent, this is
> a big bug in the linux fork code.

We have two bugs that are getting mixed here.

Your original post has to do with a futex wait failure, this is
possibly related to the hppa low level lock implementation. I am
updating the hppa implementation to see if I can fix this for you.

Helge's comments relate only to the vfork crash, and the Qt thread
creation issue being seen by debian.

Cheers,
Carlos.
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On Mon, 04 Jan 2010, Carlos O'Donell wrote:

> On Mon, Jan 4, 2010 at 11:27 AM, Helge Deller <deller@gmx.de> wrote:
> This is wrong. Each thread should have 8MB of stack. If we only get ~
> 0x40 bytes then npt/nptl-init.c is setting __default_stacksize
> incorrectly.

The 0x40 bytes is the initial frame allocated for clone running in
the child thread.   The code is not running out of stack space.

> Even PTHREAD_STACK_MIN should be 16kb?
> 
> Could you verify that your assertion that only ~ 0x40 bytes of initial
> room were allocated?
> 
> > e) Thus the child either crashes, overwrites memory of the parent or does other things wrong.
> 
> I agree with your analysis, but the error is that more stack should be
> allocated.

I don't follow that conclusion.  The stack grows upward and the stack
pointer isn't out of range.   The fork operation is somehow
corrupting the stack memory of the thread created by pthread_create.
I would say the parent is corrupting its own memory.  I doubt the
forked child is affecting the parent.  Fork would have to behave like
vfork to do this.  I have seen the pthread_create thread fail before
the clone syscall of the following fork.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:32 2018
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On Mon, 04 Jan 2010, Carlos O'Donell wrote:

> On Mon, Jan 4, 2010 at 12:32 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> >> e) Thus the child either crashes, overwrites memory of the parent or does other things wrong.
> >
> > I don't see how the forked child can affect the memory of the parent.
> > It can close files and affect the parent that way (child should use
> > _exit and not exit).
> >
> > If the forked child actually overwrites memory of the parent, this is
> > a big bug in the linux fork code.
> 
> We have two bugs that are getting mixed here.
> 
> Your original post has to do with a futex wait failure, this is
> possibly related to the hppa low level lock implementation. I am
> updating the hppa implementation to see if I can fix this for you.
> 
> Helge's comments relate only to the vfork crash, and the Qt thread
> creation issue being seen by debian.

I was talking about the debian thread creation bug in the above.
I haven't been able to duplicate the vfork crash that you posted.
The expect/tcl futex bug is likely related to the debian bug (this
is what expect does in testsuite runs).  Reduced minifail testcase
is below.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

/*
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=561203

  clone(child_stack=0x4088d040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x4108c4e8, tls=0x4108c900, child_tidptr=0x4108c4e8) = 14819
[pid 14819] set_robust_list(0x4108c4f0, 0xc) = 0
[pid 14818] clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x40002028) = 14820

 g++  minifail.cpp -o minifail -O0 -pthread -g

 i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail; done;

 */
void* thread_run(void* arg) {
	write(1,"Thread OK.\n",11);
}

int pure_test() {
	pthread_t thread;
	pthread_create(&thread, NULL, thread_run, NULL);

	switch (fork()) {
		case -1:
			perror("fork() failed");
		case 0:
			write(1,"Child OK.\n",10);
			_exit(0);
		default:
			break;
		
	}
	
	pthread_join(thread, NULL);
	return 0;
}

int main(int argc, char** argv) {
	return pure_test();
}
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Acked-by: Roland McGrath <roland@redhat.com>
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From - Thu Nov 08 21:05:32 2018
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Subject: Re: futex wait failure
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> On Mon, 04 Jan 2010, Carlos O'Donell wrote:
> 
> > On Mon, Jan 4, 2010 at 11:27 AM, Helge Deller <deller@gmx.de> wrote:
> > This is wrong. Each thread should have 8MB of stack. If we only get ~
> > 0x40 bytes then npt/nptl-init.c is setting __default_stacksize
> > incorrectly.
> 
> The 0x40 bytes is the initial frame allocated for clone running in
> the child thread.   The code is not running out of stack space.

If only 0x40 bytes of stack were allocated, start_thread would fault
almost immediately:

Dump of assembler code for function start_thread:
   0x40a40300 <+0>:     stw rp,-14(sp)
   0x40a40304 <+4>:     ldo 1c0(sp),sp
   0x40a40308 <+8>:     ldo 274(r26),r21
   0x40a4030c <+12>:    stw r9,-6c(sp)

Dave
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From - Thu Nov 08 21:05:32 2018
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Subject: Re: futex wait failure
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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On 01/04/2010 07:11 PM, John David Anglin wrote:
> On Mon, 04 Jan 2010, Carlos O'Donell wrote:
>
>> On Mon, Jan 4, 2010 at 11:27 AM, Helge Deller<deller@gmx.de>  wrote:
>> This is wrong. Each thread should have 8MB of stack. If we only get ~
>> 0x40 bytes then npt/nptl-init.c is setting __default_stacksize
>> incorrectly.
>
> The 0x40 bytes is the initial frame allocated for clone running in
> the child thread.   The code is not running out of stack space.

Hmmm...

strace on minifail (as attached to Dave's mail) gives me:

getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
mmap(NULL, 8388608, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4076d000
brk(0)                                  = 0x12000
brk(0x33000)                            = 0x33000
mprotect(0x40f6b000, 4096, PROT_NONE)   = 0
clone(Process 1684 attached (waiting for parent)
Process 1684 resumed (parent 1683 ready)
child_stack=0x4076d040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x40f6c4e8, tls=0x40f6c900, child_tidptr=0x40f6c4e8) = 1684

The mmap() allocates and maps the new child stack -> at 0x4076d000
The clone() syscall is called with child_stack=0x4076d040

I might be wrong, but that's the 0x40 bytes I mentioned.
  
>> Even PTHREAD_STACK_MIN should be 16kb?

The example above allocates 8MB.
But my point is, that child_stack starts at 0x4076d040, and
that LWS (in the child process with the stack as given above) tries to
store something to an address lower than 0x4076d000.

>> Could you verify that your assertion that only ~ 0x40 bytes of initial
>> room were allocated?
>>
>>> e) Thus the child either crashes, overwrites memory of the parent or does other things wrong.
>>
>> I agree with your analysis, but the error is that more stack should be
>> allocated.

Not more stack.
Just increasing the 0x40 initial byte offset, but that's IMHO a hack...

> I don't follow that conclusion.  The stack grows upward and the stack
> pointer isn't out of range.   The fork operation is somehow
> corrupting the stack memory of the thread created by pthread_create.
> I would say the parent is corrupting its own memory.  I doubt the
> forked child is affecting the parent.  Fork would have to behave like
> vfork to do this.  I have seen the pthread_create thread fail before
> the clone syscall of the following fork.

Doesn't pthread_create() created processes share the memory with
their parents? In that case, the child can crash or even overwrite memory
of the parent process...?

Helge
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From - Thu Nov 08 21:05:32 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: futex wait failure
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On 01/04/2010 05:27 PM, Helge Deller wrote:
> If my assumptions are correct, then we either could
>
> a) use the gcc atomic builtins instead of own atomic code in libc6:
> E.g: add to ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h:
> ...
> #if __GNUC_PREREQ (4, 1)
> # define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \
>    __sync_val_compare_and_swap (mem, oldval, newval)
> #  define atomic_compare_and_exchange_bool_acq(mem, newval, oldval) \
>    (! __sync_bool_compare_and_swap (mem, oldval, newval))
>
> #elif __ASSUME_LWS_CAS
> ....


Even with this change, minifail sadly still segfaults :-(

Helge
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: futex wait failure
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> On 01/04/2010 07:11 PM, John David Anglin wrote:
> > On Mon, 04 Jan 2010, Carlos O'Donell wrote:
> >
> >> On Mon, Jan 4, 2010 at 11:27 AM, Helge Deller<deller@gmx.de>  wrote:
> >> This is wrong. Each thread should have 8MB of stack. If we only get ~
> >> 0x40 bytes then npt/nptl-init.c is setting __default_stacksize
> >> incorrectly.
> >
> > The 0x40 bytes is the initial frame allocated for clone running in
> > the child thread.   The code is not running out of stack space.
> 
> Hmmm...
> 
> strace on minifail (as attached to Dave's mail) gives me:
> 
> getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
> mmap(NULL, 8388608, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4076d000
> brk(0)                                  = 0x12000
> brk(0x33000)                            = 0x33000
> mprotect(0x40f6b000, 4096, PROT_NONE)   = 0
> clone(Process 1684 attached (waiting for parent)
> Process 1684 resumed (parent 1683 ready)
> child_stack=0x4076d040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x40f6c4e8, tls=0x40f6c900, child_tidptr=0x40f6c4e8) = 1684
> 
> The mmap() allocates and maps the new child stack -> at 0x4076d000
> The clone() syscall is called with child_stack=0x4076d040

So, in this case, start_thread will be called with $sp = 0x4076d040.
The second instruction of start_thread increments $sp by 0x1c0.

> 
> I might be wrong, but that's the 0x40 bytes I mentioned.
>   
> >> Even PTHREAD_STACK_MIN should be 16kb?
> 
> The example above allocates 8MB.
> But my point is, that child_stack starts at 0x4076d040, and
> that LWS (in the child process with the stack as given above) tries to
> store something to an address lower than 0x4076d000.

This would be bad.  However, the LWS calls are in "start_thread", so
it didn't appear that the stack offsets that you mentioned were out
of range.  GCC would be terribly broken if it got these offsets wrong
in general.

> >> Could you verify that your assertion that only ~ 0x40 bytes of initial
> >> room were allocated?
> >>
> >>> e) Thus the child either crashes, overwrites memory of the parent or does other things wrong.
> >>
> >> I agree with your analysis, but the error is that more stack should be
> >> allocated.
> 
> Not more stack.
> Just increasing the 0x40 initial byte offset, but that's IMHO a hack...
> 
> > I don't follow that conclusion.  The stack grows upward and the stack
> > pointer isn't out of range.   The fork operation is somehow
> > corrupting the stack memory of the thread created by pthread_create.
> > I would say the parent is corrupting its own memory.  I doubt the
> > forked child is affecting the parent.  Fork would have to behave like
> > vfork to do this.  I have seen the pthread_create thread fail before
> > the clone syscall of the following fork.
> 
> Doesn't pthread_create() created processes share the memory with
> their parents? In that case, the child can crash or even overwrite memory
> of the parent process...?

We have to be careful about semantics.  The child of the fork runs
in a different address space, so it is unlikely that it can corrupt
the parent directly.  It is true that the child inherits all the
pthread mutexs and the thread context of the thread which called fork.
The child could close the file descriptors of the parent.  It could
affect any context that is stored in the kernel.

The fork call is involved in this bug.  I have verified that the faults
don't occur if it is removed.  The faults don't occur if a sleep(1) call
is added between the pthread_create and fork calls.

I think the parent thread is corrupting the stack of the child thread
created by pthread_create, but I don't know how this happens.  I have
seen at least one case where this corruption occurs prior to the system
clone call for the fork.  I think we must have some kind of lock
failure which is timing dependent (i.e., the scheduling of the parent
and child threads).

I thought this likely indicated the lws code wasn't atomic.  We don't
allow schedule to run if we are on the gateway page.  I'm starting
to wonder if threads (not processes) are still being scheduled.

Dave
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: futex wait failure
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> clone(Process 1684 attached (waiting for parent)
> Process 1684 resumed (parent 1683 ready)
> child_stack=0x4076d040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x40f6c4e8, tls=0x40f6c900, child_tidptr=0x40f6c4e8) = 1684

I noticed the tidptr for the fork may not be correct:

clone(child_stack=0x40e87040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x416864e8, tls=0x41686900, child_tidptr=0x416864e8) = 31613
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x40002028) = 31614

I would have thought the value should have been the same as that in the
clone from the pthread_create call.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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On Thu, 31 Dec 2009 22:15:08 +0100
Helge Deller <deller@gmx.de> wrote:

> On 12/30/2009 04:49 PM, James Bottomley wrote:
> > A better, and more comprehensive patch would be to try not to count the
> > empty text sections when we're building the notes section (and actually
> > anywhere else in the file).  This patch actually relies on the fact that
> > if sh_size is zero for the text section it should be for the
> > corresponding notes section.  If that doesn't work, we'd actually have
> > to do the matching in the construction piece.
> >
> > Can you try it to see if it works for you?  If it doesn't, I'll try
> > matching notes to text.  It works fine on parisc, but as we don't have a
> > notes section, that's not saying much ...
> >
> > Thanks,
> >
> > James
> 
> 
> Ben Hutchings already sent a similar patch.
> See: http://patchwork.kernel.org/patch/68925/
> 
> IMHO James patch below seems better since it
> checks if a section will be allocated at a few more
> places...
> 

Ben's patch (which is below) is currently in linux-next, via a Rusty
tree.  It is marked for -stable backporting.

If James's patch is preferable then there's an opportunity to do the
swap if we move promptly.




commit 9e9b48a89ed43c73d7355ff999b8e87b0628e1cd
Author:     Ben Hutchings <ben@decadent.org.uk>
AuthorDate: Sat Dec 19 14:43:01 2009 +0000
Commit:     Stephen Rothwell <sfr@canb.auug.org.au>
CommitDate: Tue Jan 5 08:44:50 2010 +1100

    modules: Skip empty sections when exporting section notes
    
    Commit 35dead4 "modules: don't export section names of empty sections
    via sysfs" changed the set of sections that have attributes, but did
    not change the iteration over these attributes in add_notes_attrs().
    This can lead to add_notes_attrs() creating attributes with the wrong
    names or with null name pointers.
    
    Introduce a sect_empty() function and use it in both add_sect_attrs()
    and add_notes_attrs().
    
    Reported-by: Martin Michlmayr <tbm@cyrius.com>
    Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
    Tested-by: Martin Michlmayr <tbm@cyrius.com>
    Cc: stable@kernel.org
    Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/kernel/module.c b/kernel/module.c
index e96b8ed..f82386b 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1010,6 +1010,12 @@ static const struct kernel_symbol *resolve_symbol(Elf_Shdr *sechdrs,
  * J. Corbet <corbet@lwn.net>
  */
 #if defined(CONFIG_KALLSYMS) && defined(CONFIG_SYSFS)
+
+static inline bool sect_empty(const Elf_Shdr *sect)
+{
+	return !(sect->sh_flags & SHF_ALLOC) || sect->sh_size == 0;
+}
+
 struct module_sect_attr
 {
 	struct module_attribute mattr;
@@ -1051,8 +1057,7 @@ static void add_sect_attrs(struct module *mod, unsigned int nsect,
 
 	/* Count loaded sections and allocate structures */
 	for (i = 0; i < nsect; i++)
-		if (sechdrs[i].sh_flags & SHF_ALLOC
-		    && sechdrs[i].sh_size)
+		if (!sect_empty(&sechdrs[i]))
 			nloaded++;
 	size[0] = ALIGN(sizeof(*sect_attrs)
 			+ nloaded * sizeof(sect_attrs->attrs[0]),
@@ -1070,9 +1075,7 @@ static void add_sect_attrs(struct module *mod, unsigned int nsect,
 	sattr = &sect_attrs->attrs[0];
 	gattr = &sect_attrs->grp.attrs[0];
 	for (i = 0; i < nsect; i++) {
-		if (! (sechdrs[i].sh_flags & SHF_ALLOC))
-			continue;
-		if (!sechdrs[i].sh_size)
+		if (sect_empty(&sechdrs[i]))
 			continue;
 		sattr->address = sechdrs[i].sh_addr;
 		sattr->name = kstrdup(secstrings + sechdrs[i].sh_name,
@@ -1156,7 +1159,7 @@ static void add_notes_attrs(struct module *mod, unsigned int nsect,
 	/* Count notes sections and allocate structures.  */
 	notes = 0;
 	for (i = 0; i < nsect; i++)
-		if ((sechdrs[i].sh_flags & SHF_ALLOC) &&
+		if (!sect_empty(&sechdrs[i]) &&
 		    (sechdrs[i].sh_type == SHT_NOTE))
 			++notes;
 
@@ -1172,7 +1175,7 @@ static void add_notes_attrs(struct module *mod, unsigned int nsect,
 	notes_attrs->notes = notes;
 	nattr = &notes_attrs->attrs[0];
 	for (loaded = i = 0; i < nsect; ++i) {
-		if (!(sechdrs[i].sh_flags & SHF_ALLOC))
+		if (sect_empty(&sechdrs[i]))
 			continue;
 		if (sechdrs[i].sh_type == SHT_NOTE) {
 			nattr->attr.name = mod->sect_attrs->attrs[loaded].name;

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From - Thu Nov 08 21:05:32 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex wait failure
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> > clone(Process 1684 attached (waiting for parent)
> > Process 1684 resumed (parent 1683 ready)
> > child_stack=0x4076d040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x40f6c4e8, tls=0x40f6c900, child_tidptr=0x40f6c4e8) = 1684
> 
> I noticed the tidptr for the fork may not be correct:
> 
> clone(child_stack=0x40e87040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x416864e8, tls=0x41686900, child_tidptr=0x416864e8) = 31613
> clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x40002028) = 31614
> 
> I would have thought the value should have been the same as that in the
> clone from the pthread_create call.

It's possible that this is done intentionally...  The parent_tidptr
is the one that's wrong in the first clone.

I have noticed something else in the minifail kernel register dumps:

Jan  6 15:54:05 hiauly6 kernel: sr00-03  00000024 0000001b 00000000 00000024
Jan  6 15:54:05 hiauly6 kernel: sr04-07  00000024 00000024 00000024 00000024

sr1 seems to contain an odd value.  This seems to be the case in all
minifail register dumps.  I checked that the sr1 value doesn't belong
to the child of the fork call.  This might indicate a tlb/cache issue
as sr1 is used for these operations.

Dave
-- 
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On 01/07/2010 12:33 AM, John David Anglin wrote:
>>> clone(Process 1684 attached (waiting for parent)
>>> Process 1684 resumed (parent 1683 ready)
>>> child_stack=0x4076d040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x40f6c4e8, tls=0x40f6c900, child_tidptr=0x40f6c4e8) = 1684
>>
>> I noticed the tidptr for the fork may not be correct:
>>
>> clone(child_stack=0x40e87040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x416864e8, tls=0x41686900, child_tidptr=0x416864e8) = 31613
>> clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x40002028) = 31614
>>
>> I would have thought the value should have been the same as that in the
>> clone from the pthread_create call.
>
> It's possible that this is done intentionally...  The parent_tidptr
> is the one that's wrong in the first clone.
>
> I have noticed something else in the minifail kernel register dumps:
>
> Jan  6 15:54:05 hiauly6 kernel: sr00-03  00000024 0000001b 00000000 00000024
> Jan  6 15:54:05 hiauly6 kernel: sr04-07  00000024 00000024 00000024 00000024
>
> sr1 seems to contain an odd value.  This seems to be the case in all
> minifail register dumps.

IIRC, for me most crashes had sr1=0. Only a very few had sr1 != 0.

> I checked that the sr1 value doesn't belong
> to the child of the fork call.  This might indicate a tlb/cache issue
> as sr1 is used for these operations.

Helge
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> 
> On 01/07/2010 12:33 AM, John David Anglin wrote:
> >>> clone(Process 1684 attached (waiting for parent)
> >>> Process 1684 resumed (parent 1683 ready)
> >>> child_stack=0x4076d040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x40f6c4e8, tls=0x40f6c900, child_tidptr=0x40f6c4e8) = 1684
> >>
> >> I noticed the tidptr for the fork may not be correct:
> >>
> >> clone(child_stack=0x40e87040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x416864e8, tls=0x41686900, child_tidptr=0x416864e8) = 31613
> >> clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x40002028) = 31614
> >>
> >> I would have thought the value should have been the same as that in the
> >> clone from the pthread_create call.
> >
> > It's possible that this is done intentionally...  The parent_tidptr
> > is the one that's wrong in the first clone.

I now think this probably is a glibc bug.  The kernel uses this value
when the CLONE_PARENT_SETTID flag is passed.

> > I have noticed something else in the minifail kernel register dumps:
> >
> > Jan  6 15:54:05 hiauly6 kernel: sr00-03  00000024 0000001b 00000000 00000024
> > Jan  6 15:54:05 hiauly6 kernel: sr04-07  00000024 00000024 00000024 00000024
> >
> > sr1 seems to contain an odd value.  This seems to be the case in all
> > minifail register dumps.
> 
> IIRC, for me most crashes had sr1=0. Only a very few had sr1 != 0.
> 
> > I checked that the sr1 value doesn't belong
> > to the child of the fork call.  This might indicate a tlb/cache issue
> > as sr1 is used for these operations.

I added some loops in the parent and child threads.  I also added code
in the child thread to watch the return point location on the stack
for start_thread.  What I found is the stack gets overwritten after
the thread has started.  At the same time, the parent is looping
post fork.

So, the problem has to be with fork (i.e., its not with pthread_join
or pthread_exit).  Still think the problem involves sr1 (it's unusual
the sr1 contains a value that's not the user or kernel values).

I played with saving sr1 in some additional places (tlb and cache
flushing) but this didn't alter things.  Haven't played with pa_memcpy.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:32 2018
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Subject: Re: futex wait failure
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> I added some loops in the parent and child threads.  I also added code
> in the child thread to watch the return point location on the stack
> for start_thread.  What I found is the stack gets overwritten after
> the thread has started.  At the same time, the parent is looping
> post fork.

More debugging.  It seems bad news to have more than one clone
syscall active at a time.  The thread child may still be in the kernel
when the fork syscall is made by the parent.  The testcase doesn't
fail if the parent waits for the child thread to start.  See below.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

/*
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=561203

  clone(child_stack=0x4088d040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x4108c4e8, tls=0x4108c900, child_tidptr=0x4108c4e8) = 14819
[pid 14819] set_robust_list(0x4108c4f0, 0xc) = 0
[pid 14818] clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x40002028) = 14820

 g++  minifail.cpp -o minifail -O0 -pthread -g

 i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail; done;

 */

static volatile int run;

void* thread_run(void* arg) {
	static long status;
	int i;
        
	run = 1;
	pthread_yield();
	for (i = 10000000; i; i--)
	   continue;
	write(1,"Thread OK.\n",11);
	return (void *)&status;
}

int pure_test() {
	pthread_t thread;
	pthread_create(&thread, NULL, thread_run, NULL);

	while (!run)
	  continue;
	switch (fork()) {
		case -1:
			perror("fork() failed");
		case 0:
			write(1,"Child OK.\n",10);
			_exit(0);
		default:
			break;
		
	}
	pthread_join(thread, NULL);
	return 0;
}

int main(int argc, char** argv) {
	return pure_test();
}
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From - Thu Nov 08 21:05:33 2018
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Subject: Re: futex wait failure
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On 01/08/2010 05:37 PM, John David Anglin wrote:
>>
>> On 01/07/2010 12:33 AM, John David Anglin wrote:
>>>>> clone(Process 1684 attached (waiting for parent)
>>>>> Process 1684 resumed (parent 1683 ready)
>>>>> child_stack=0x4076d040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x40f6c4e8, tls=0x40f6c900, child_tidptr=0x40f6c4e8) = 1684
>>>>
>>>> I noticed the tidptr for the fork may not be correct:
>>>>
>>>> clone(child_stack=0x40e87040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x416864e8, tls=0x41686900, child_tidptr=0x416864e8) = 31613
>>>> clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x40002028) = 31614
>>>>
>>>> I would have thought the value should have been the same as that in the
>>>> clone from the pthread_create call.
>>>
>>> It's possible that this is done intentionally...  The parent_tidptr
>>> is the one that's wrong in the first clone.
>
> I now think this probably is a glibc bug.  The kernel uses this value
> when the CLONE_PARENT_SETTID flag is passed.


Maybe we have a futex problem in glibc on hppa?
In glibc nptl/pthread_mutex_trylock.c we check the return value of a futex syscall against EWOULDBLOCK.
Since on parisc - in contrast to all other architectures - we have EWOULDBLOCK!=EAGAIN, we maybe missed a check?

Helge
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From - Thu Nov 08 21:05:33 2018
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Subject: Re: futex wait failure
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> Maybe we have a futex problem in glibc on hppa?
> In glibc nptl/pthread_mutex_trylock.c we check the return value of a futex syscall against EWOULDBLOCK.
> Since on parisc - in contrast to all other architectures - we have EWOULDBLOCK!=EAGAIN, we maybe missed a check?

That's a very interesting observation!  The manpage doesn't say
EWOULDBLOCK is a valid error return for FUTEX(2).  I wonder is there
are more slips like this.  It looks like the same bug is present in
nptl/sysdeps/unix/sysv/linux/sem_wait.c and
nptl/sysdeps/unix/sysv/linux/sem_timedwait.c.

This might explain my previous mail.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:33 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: futex wait failure
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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To: Helge Deller <deller@gmx.de>
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On Fri, Jan 8, 2010 at 4:18 PM, Helge Deller <deller@gmx.de> wrote:
>> I now think this probably is a glibc bug. =A0The kernel uses this va=
lue
>> when the CLONE_PARENT_SETTID flag is passed.
>
>
> Maybe we have a futex problem in glibc on hppa?
> In glibc nptl/pthread_mutex_trylock.c we check the return value of a =
futex
> syscall against EWOULDBLOCK.
> Since on parisc - in contrast to all other architectures - we have
> EWOULDBLOCK!=3DEAGAIN, we maybe missed a check?

That's a bug. There are several kernel paths that could return EAGAIN
*or* EWOULDBLOCK via the FUTEX_TRYLOCK_PI futex operation.

However, I think Dave is on to something with the

Cheers,
Carlos.
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex wait failure
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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To: Helge Deller <deller@gmx.de>
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On Fri, Jan 8, 2010 at 4:44 PM, Carlos O'Donell <carlos@systemhalted.or=
g> wrote:
> On Fri, Jan 8, 2010 at 4:18 PM, Helge Deller <deller@gmx.de> wrote:
>>> I now think this probably is a glibc bug. =A0The kernel uses this v=
alue
>>> when the CLONE_PARENT_SETTID flag is passed.
>>
>>
>> Maybe we have a futex problem in glibc on hppa?
>> In glibc nptl/pthread_mutex_trylock.c we check the return value of a=
 futex
>> syscall against EWOULDBLOCK.
>> Since on parisc - in contrast to all other architectures - we have
>> EWOULDBLOCK!=3DEAGAIN, we maybe missed a check?
>
> That's a bug. There are several kernel paths that could return EAGAIN
> *or* EWOULDBLOCK via the FUTEX_TRYLOCK_PI futex operation.
>
> However, I think Dave is on to something with the

=2E..kernel issue.

We might have *several* outstanding bugs :-)

Cheers,
Carlos.
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From - Thu Nov 08 21:05:33 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex wait failure
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On Fri, Jan 08, 2010 at 04:44:51PM -0500, Carlos O'Donell wrote:
> >
> > However, I think Dave is on to something with the
> 
> ...kernel issue.
> 
> We might have *several* outstanding bugs :-)
> 

Hrm. We discussed this on IRC a while ago, I can't remember what we
decided was the best approach... there's probably many many dragons
here.

I wonder what would break if we set any EAGAIN returns to EWOULDBLOCK in
the exit path.
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From - Thu Nov 08 21:05:33 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex wait failure
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> On Fri, Jan 08, 2010 at 04:44:51PM -0500, Carlos O'Donell wrote:
> > >
> > > However, I think Dave is on to something with the
> > 
> > ...kernel issue.
> > 
> > We might have *several* outstanding bugs :-)
> > 
> 
> Hrm. We discussed this on IRC a while ago, I can't remember what we
> decided was the best approach... there's probably many many dragons
> here.
> 
> I wonder what would break if we set any EAGAIN returns to EWOULDBLOCK in
> the exit path.

That seems reversed.  x86_64 translates the system's EWOULDBLOCK error
into EAGAIN in sysdeps/unix/x86_64/sysdep.S.  However, don't know if this
impacts the futex and sem_wait checks.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:33 2018
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Subject: Re: futex wait failure
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To: carlos@systemhalted.org (Carlos O'Donell)
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In-Reply-To: <119aab441001081344i7eb3c3f3s9c22eeaecf4d0e1a@mail.gmail.com> from "Carlos O'Donell" at Jan 8, 2010 04:44:51 pm
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> On Fri, Jan 8, 2010 at 4:44 PM, Carlos O'Donell <carlos@systemhalted.org> w=
> rote:
> > On Fri, Jan 8, 2010 at 4:18 PM, Helge Deller <deller@gmx.de> wrote:
> >>> I now think this probably is a glibc bug. =A0The kernel uses this value
> >>> when the CLONE_PARENT_SETTID flag is passed.
> >>
> >>
> >> Maybe we have a futex problem in glibc on hppa?
> >> In glibc nptl/pthread_mutex_trylock.c we check the return value of a fut=
> ex
> >> syscall against EWOULDBLOCK.
> >> Since on parisc - in contrast to all other architectures - we have
> >> EWOULDBLOCK!=3DEAGAIN, we maybe missed a check?
> >
> > That's a bug. There are several kernel paths that could return EAGAIN
> > *or* EWOULDBLOCK via the FUTEX_TRYLOCK_PI futex operation.

Hacking glibc to check for both does not fix the testcase ;(

> > However, I think Dave is on to something with the
> 
> ...kernel issue.
> 
> We might have *several* outstanding bugs :-)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:33 2018
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On Fri, Jan 08, 2010 at 05:28:58PM -0500, John David Anglin wrote:
> > On Fri, Jan 08, 2010 at 04:44:51PM -0500, Carlos O'Donell wrote:
> > > >
> > > > However, I think Dave is on to something with the
> > > 
> > > ...kernel issue.
> > > 
> > > We might have *several* outstanding bugs :-)
> > > 
> > 
> > Hrm. We discussed this on IRC a while ago, I can't remember what we
> > decided was the best approach... there's probably many many dragons
> > here.
> > 
> > I wonder what would break if we set any EAGAIN returns to EWOULDBLOCK in
> > the exit path.
> 
> That seems reversed.  x86_64 translates the system's EWOULDBLOCK error
> into EAGAIN in sysdeps/unix/x86_64/sysdep.S.  However, don't know if this
> impacts the futex and sem_wait checks.

Yeah, you're right.

regards, Kyle
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH] vgaarb: fix typo deference when copying from userspace
Date: Tue, 12 Jan 2010 19:56:37 +0100
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Cc: Dave Airlie <airlied@redhat.com>,
	Jesse Barnes <jbarnes@virtuousgeek.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	"Paulo R. Zanoni" <przanoni@gmail.com>,
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To: Tiago Vignatti <tiago.vignatti@nokia.com>
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On 01/12/2010 06:58 PM, Tiago Vignatti wrote:
> From: Brad Spengler<spender@grsecurity.net>
>
> libpciaccess is not triggering such code though.
>
> Signed-off-by: Tiago Vignatti<tiago.vignatti@nokia.com>

I can confirm, that this patch is needed to prevent a kernel
segfault with 2.6.33-rc3  on the parisc/hppa architecture.

Tested-by: Helge Deller <deller@gmx.de>

> ---
> Andy Getzendanner tried to fix this, but he seems did a wrong approach:
> http://marc.info/?l=linux-kernel&m=126112173704466
>
> Andy: please test (and put your tag review!) this one instead. Thanks.
>
>   drivers/gpu/vga/vgaarb.c |    2 +-
>   1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c
> index 1ac0c93..2f6cf69 100644
> --- a/drivers/gpu/vga/vgaarb.c
> +++ b/drivers/gpu/vga/vgaarb.c
> @@ -961,7 +961,7 @@ static ssize_t vga_arb_write(struct file *file, const char __user * buf,
>   		remaining -= 7;
>   		pr_devel("client 0x%p called 'target'\n", priv);
>   		/* if target is default */
> -		if (!strncmp(buf, "default", 7))
> +		if (!strncmp(curr_pos, "default", 7))
>   			pdev = pci_dev_get(vga_default_device());
>   		else {
>   			if (!vga_pci_str_to_vars(curr_pos, remaining,


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On Sun, 2010-01-03 at 18:50 -0500, Kyle McMartin wrote:
> On Sun, Jan 03, 2010 at 11:23:25PM +0000, Ben Hutchings wrote:
> > Ryan Niebur reported in <http://bugs.debian.org/561880> that on a
> > PA-RISC system running Linux 2.6.32 the following test case for inotify:
> > 
> 
> I bet this is because classic RCU is removed, and tree RCU was
> insufficiently tested on crap platforms before the removal.
> 
> I'll try to re-add it and we can see if it's an RCU problem or something
> nastier.

Apparently it's a feature of kernels beyond 2.6.30 (this exact
behaviour).  Suspect the bug report is incomplete and the i386 machine
was running 2.6.29 or lower.

Red Hat has been getting complaints about it so they're looking to
revert to the old 2.6.29 behaviour as well.  The actual commit that
caused the behaviour change is

commit 63c882a05416e18de6fb59f7dd6da48f3bbe8273
Author: Eric Paris <eparis@redhat.com>
Date:   Thu May 21 17:02:01 2009 -0400

    inotify: reimplement inotify using fsnotify

James


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On 01/08/2010 10:44 PM, Carlos O'Donell wrote:
> On Fri, Jan 8, 2010 at 4:18 PM, Helge Deller<deller@gmx.de>  wrote:
>>> I now think this probably is a glibc bug.  The kernel uses this value
>>> when the CLONE_PARENT_SETTID flag is passed.
>>
>>
>> Maybe we have a futex problem in glibc on hppa?
>> In glibc nptl/pthread_mutex_trylock.c we check the return value of a futex
>> syscall against EWOULDBLOCK.
>> Since on parisc - in contrast to all other architectures - we have
>> EWOULDBLOCK!=EAGAIN, we maybe missed a check?
>
> That's a bug. [...]

Carlos,  Dave,

I'm wondering if we have another bug in glibc...?

When running strace, I noticed that a thread which returns with "return 0",
exits the process on hppa with exit(0):
[pid  1875] write(1, "Thread OK.\n", 11) = 11
[pid  1875] exit(0)

On my x86_64 I see:
[pid  8154] write(1, "Thread OK.\n", 11) = 11
[pid  8154] _exit(0)                    =

In ports/sysdeps/unix/sysv/linux/hppa/clone.S (line 170) I do see:
         /* The call to _exit needs saved r19.  */
         bl      _exit, %rp
         copy    %ret0, %arg0

This coding seems to indicate that we call _exit(), but we aren't (as
you see above in the strace).
So I'm wondering if the "bl _exit,%rp" needs changing.
Something with HIDDEN_JUMPTARGET(_exit) or similar, so that
_exit() instead of exit() is called?

Actually I did tested this with the minifail test program, and changed
thread_run() to call _exit(0) at the end instead of "return 0":
void* thread_run(void* arg) {
	...
/*	return (void *)&status;  */
         _exit(0);
}
With strace I then suddenly got exit_group() which seems more correct:
[pid  1910] write(1, "Thread OK.\n", 11) = 11
[pid  1910] exit_group(0)               = ?

Helge
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Is this a known problem?

I'm getting this error on linus' kernel tree build:
fs/compat_ioctl.c:1651:2: error: bit-field '<anonymous>' width not an integer constant

The offending code is:
1646 static int compat_ioctl_check_table(unsigned int xcmd)
1647 {
1648         int i;
1649         const int max = ARRAY_SIZE(ioctl_pointer) - 1;
1650 
1651         BUILD_BUG_ON(max >= (1 << 16));


This "looks" right to me. Everything is a constant other than "max".
Since max is declared "const", I *expect* max to behave like a constant.


I used "make V=1" to get the command than used that to preprocess the code:

hppa64-linux-gnu-gcc -Wp,-MD,fs/.compat_ioctl.o.d  -nostdinc -isystem /home/dave/opt/gnu64/gcc-4.5.0/lib/gcc/hppa64-linux-gnu/4.5.0/include -I/usr/src/linux-2.6/arch/parisc/include -Iinclude  -include include/generated/autoconf.h -D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -fno-delete-null-pointer-checks -Os -pipe -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000 -Wframe-larger-than=2048 -fno-stack-protector -fomit-frame-pointer -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fno-dwarf2-cfi-asm -fconserve-stack   -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(compat_ioctl)"  -D"KBUILD_MODNAME=KBUILD_STR(c
 ompat_ioctl)"  -E -o fs/.tmp_compat_ioctl.P fs/compat_ioctl.c

and I believe the same code in fs/.tmp_compat_ioctl.P is:

static int compat_ioctl_check_table(unsigned int xcmd)
{
 int i;
 const int max = (sizeof(ioctl_pointer) / sizeof((ioctl_pointer)[0]) + (sizeof(struct { int:-!!(__builtin_types_compatible_p(typeof(ioctl_pointer), typeof(&ioctl_pointer[0]))); }))) - 1;

 ((void)(sizeof(struct { int:-!!(max >= (1 << 16)); })));


I can't make sense of this since I have no clue what "int:-!!" means.


BTW, I also looked in include/linux/kernel.h:

/* Force a compilation error if condition is true */
#define BUILD_BUG_ON(condition) ((void)BUILD_BUG_ON_ZERO(condition))

...
/* Force a compilation error if condition is true, but also produce a
   result (of value 0 and type size_t), so the expression can be used
   e.g. in a structure initializer (or where-ever else comma expressions
   aren't permitted). */
#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
#define BUILD_BUG_ON_NULL(e) ((void *)sizeof(struct { int:-!!(e); }))

Source this comes from is gsyprf11:/usr/src/linux-2.6 and I just did
a git pull. Please let me know if I just got unlucky and should pull again.

hth,
grant
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From - Thu Nov 08 21:05:34 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: fs/compat_ioctl.c:1651:2: error: bit-field '<anonymous>' width
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On Mon, Jan 18, 2010 at 12:31:48AM -0700, Grant Grundler wrote:
> fs/compat_ioctl.c:1651:2: error: bit-field '<anonymous>' width not an integer constant
><...>
>  ((void)(sizeof(struct { int:-!!(max >= (1 << 16)); })));
><...> 
> I can't make sense of this since I have no clue what "int:-!!" means.
> 

It basically means what the error above says. :) If the expr evaluates
to non-zero, bound it to 1 (ie: !!x = 1, where x > 0) and the negative
sign is to give an invalid field width, so we ftbfs.

Anyway, it's basically checking to see how many elements there are in
the table, and failing if there are more than expected. It looks kind of
failure that these are magic numbers.

regards, Kyle
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From - Thu Nov 08 21:05:34 2018
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Subject: Re: futex wait failure
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To: deller@gmx.de (Helge Deller)
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In-Reply-To: <4B524912.4070204@gmx.de> from "Helge Deller" at Jan 17, 2010 00:17:38 am
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Hi Helge,

If you link the test with -static, you should be able to set
breaks in your test application and determine why _exit isn't
called.

I'm in the process of moving homes, so I don't have much time
to investigate myself.

Dave

> On 01/08/2010 10:44 PM, Carlos O'Donell wrote:
> > On Fri, Jan 8, 2010 at 4:18 PM, Helge Deller<deller@gmx.de>  wrote:
> >>> I now think this probably is a glibc bug.  The kernel uses this value
> >>> when the CLONE_PARENT_SETTID flag is passed.
> >>
> >>
> >> Maybe we have a futex problem in glibc on hppa?
> >> In glibc nptl/pthread_mutex_trylock.c we check the return value of a futex
> >> syscall against EWOULDBLOCK.
> >> Since on parisc - in contrast to all other architectures - we have
> >> EWOULDBLOCK!=EAGAIN, we maybe missed a check?
> >
> > That's a bug. [...]
> 
> Carlos,  Dave,
> 
> I'm wondering if we have another bug in glibc...?
> 
> When running strace, I noticed that a thread which returns with "return 0",
> exits the process on hppa with exit(0):
> [pid  1875] write(1, "Thread OK.\n", 11) = 11
> [pid  1875] exit(0)
> 
> On my x86_64 I see:
> [pid  8154] write(1, "Thread OK.\n", 11) = 11
> [pid  8154] _exit(0)                    =
> 
> In ports/sysdeps/unix/sysv/linux/hppa/clone.S (line 170) I do see:
>          /* The call to _exit needs saved r19.  */
>          bl      _exit, %rp
>          copy    %ret0, %arg0
> 
> This coding seems to indicate that we call _exit(), but we aren't (as
> you see above in the strace).
> So I'm wondering if the "bl _exit,%rp" needs changing.
> Something with HIDDEN_JUMPTARGET(_exit) or similar, so that
> _exit() instead of exit() is called?
> 
> Actually I did tested this with the minifail test program, and changed
> thread_run() to call _exit(0) at the end instead of "return 0":
> void* thread_run(void* arg) {
> 	...
> /*	return (void *)&status;  */
>          _exit(0);
> }
> With strace I then suddenly got exit_group() which seems more correct:
> [pid  1910] write(1, "Thread OK.\n", 11) = 11
> [pid  1910] exit_group(0)               = ?
> 
> Helge
> 


-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:34 2018
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To: Kyle McMartin <kyle@mcmartin.ca>
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On Fri, 2010-01-15 at 10:26 -0600, James Bottomley wrote:
> On Sun, 2010-01-03 at 18:50 -0500, Kyle McMartin wrote:
> > On Sun, Jan 03, 2010 at 11:23:25PM +0000, Ben Hutchings wrote:
> > > Ryan Niebur reported in <http://bugs.debian.org/561880> that on a
> > > PA-RISC system running Linux 2.6.32 the following test case for inotify:
> > > 
> > 
> > I bet this is because classic RCU is removed, and tree RCU was
> > insufficiently tested on crap platforms before the removal.
> > 
> > I'll try to re-add it and we can see if it's an RCU problem or something
> > nastier.
> 
> Apparently it's a feature of kernels beyond 2.6.30 (this exact
> behaviour).  Suspect the bug report is incomplete and the i386 machine
> was running 2.6.29 or lower.
> 
> Red Hat has been getting complaints about it so they're looking to
> revert to the old 2.6.29 behaviour as well.  The actual commit that
> caused the behaviour change is
> 
> commit 63c882a05416e18de6fb59f7dd6da48f3bbe8273
> Author: Eric Paris <eparis@redhat.com>
> Date:   Thu May 21 17:02:01 2009 -0400
> 
>     inotify: reimplement inotify using fsnotify

Just to close this out, the fix (for all architectures) is now upstream:

commit 9e572cc9877ee6c43af60778f6b8d5ba0692d935
Author: Eric Paris <eparis@redhat.com>
Date:   Fri Jan 15 12:12:24 2010 -0500

    inotify: do not reuse watch descriptors

James


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> Actually I did tested this with the minifail test program, and changed
> thread_run() to call _exit(0) at the end instead of "return 0":
> void* thread_run(void* arg) {
> 	...
> /*	return (void *)&status;  */
>          _exit(0);
> }
> With strace I then suddenly got exit_group() which seems more correct:
> [pid  1910] write(1, "Thread OK.\n", 11) = 11
> [pid  1910] exit_group(0)               = ?

The child of the fork should exit using _exit(0).  Otherwise, it messes
with the file descriptors of the parent.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: futex wait failure
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On Mon, Jan 18, 2010 at 3:44 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> Actually I did tested this with the minifail test program, and chang=
ed
>> thread_run() to call _exit(0) at the end instead of "return 0":
>> void* thread_run(void* arg) {
>> =A0 =A0 =A0 ...
>> /* =A0 =A0return (void *)&status; =A0*/
>> =A0 =A0 =A0 =A0 =A0_exit(0);
>> }
>> With strace I then suddenly got exit_group() which seems more correc=
t:
>> [pid =A01910] write(1, "Thread OK.\n", 11) =3D 11
>> [pid =A01910] exit_group(0) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =3D ?
>
> The child of the fork should exit using _exit(0). =A0Otherwise, it me=
sses
> with the file descriptors of the parent.

Thanks for verifying this. I'm looking into this.

Cheers,
Carlos.
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Subject: [PATCH] exec: Use a define for maximum process stack size in 
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--00032555a3420b4f6e047dc13560
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Create a new define for the maximum allowed process stack size for
STACK_GROWSUP architectures. This allows the value to be overridden in
architecture specific code where necessary.

Signed-off-by: Will Newton <will.newton@gmail.com>
---

The only in-tree architecture this affects is parisc. I don't have a
parisc box here to test with, but I have tested this change on an
out-of-tree Linux port with STACK_GROWSUP set.

 fs/exec.c |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/fs/exec.c b/fs/exec.c
index 632b02e..d37a626 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -573,10 +573,13 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	unsigned long stack_base;

 #ifdef CONFIG_STACK_GROWSUP
-	/* Limit stack size to 1GB */
+	/* Limit stack size to 1GB by default. */
+#ifndef STACK_MAX_SIZE
+#define STACK_MAX_SIZE (1 << 30)
+#endif
 	stack_base = current->signal->rlim[RLIMIT_STACK].rlim_max;
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_MAX_SIZE)
+		stack_base = STACK_MAX_SIZE;

 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
-- 
1.5.5.2

--00032555a3420b4f6e047dc13560
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Segmentation fault in __libc_start_main with -static
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In trying to debug a new gcc testsuite failure, I tried to link the
application with -static to simplify debugging.  It turns out we have
a couple of problems in linking threaded applications with -static.

The first problem is the linker does change r19 to dp for various TLS
relocations using the global pointer.  I've attached a patch below
to which I think fixes this problem.

The second issue is the handling of the symbol __nptl_threads.
We get a segmentation fault at startup here:

0x000223bc <__libc_start_main+600>:     addil L%0,r0,r1
0x000223c0 <__libc_start_main+604>:     ldo 0(r1),r3
0x000223c4 <__libc_start_main+608>:     ldw 0(r3),rp

The relocations are:

00000258 R_PARISC_DPREL21L  __nptl_nthreads
0000025c R_PARISC_DPREL14R  __nptl_nthreads

The original code:

 258:   2b 60 00 00     addil L%0,dp,r1
 25c:   34 23 00 00     ldo 0(r1),r3
 260:   0c 60 10 82     ldw 0(r3),rp

__nptl_nthreads is undefined weak:

         w __nptl_nthreads

The original code gets munged in elf32-hppa.c:

    /* For all the DP relative relocations, we need to examine the symbol's
       section.  If it has no section or if it's a code section, then
       "data pointer relative" makes no sense.  In that case we don't
       adjust the "value", and for 21 bit addil instructions, we change the
       source addend register from %dp to %r0.  This situation commonly
       arises for undefined weak symbols and when a variable's "constness"
       is declared differently from the way the variable is defined.  For
       instance: "extern int foo" with foo defined as "const int foo".  */
      if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
	{
	  if ((insn & ((0x3f << 26) | (0x1f << 21)))
	      == (((int) OP_ADDIL << 26) | (27 << 21)))
	    {
	      insn &= ~ (0x1f << 21);
	    }
	  /* Now try to make things easy for the dynamic linker.  */

	  break;
        }

We either need to define __nptl_nthreads or check if its address is
NULL.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: elf32-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
retrieving revision 1.169
diff -u -3 -p -r1.169 elf32-hppa.c
--- elf32-hppa.c	8 Nov 2009 20:47:24 -0000	1.169
+++ elf32-hppa.c	26 Jan 2010 02:52:02 -0000
@@ -3388,12 +3388,19 @@ final_link_relocate (asection *input_sec
     case R_PARISC_DPREL21L:
     case R_PARISC_DPREL14R:
     case R_PARISC_DPREL14F:
+    case R_PARISC_TLS_GD21L:
+    case R_PARISC_TLS_LDM21L:
+    case R_PARISC_TLS_IE21L:
       /* Convert instructions that use the linkage table pointer (r19) to
 	 instructions that use the global data pointer (dp).  This is the
 	 most efficient way of using PIC code in an incomplete executable,
 	 but the user must follow the standard runtime conventions for
 	 accessing data for this to work.  */
-      if (orig_r_type == R_PARISC_DLTIND21L)
+      if (orig_r_type == R_PARISC_DLTIND21L
+	  || (!info->shared
+	      && (r_type == R_PARISC_TLS_GD21L
+		  || r_type == R_PARISC_TLS_LDM21L
+		  || r_type == R_PARISC_TLS_IE21L)))
 	{
 	  /* Convert addil instructions if the original reloc was a
 	     DLTIND21L.  GCC sometimes uses a register other than r19 for
@@ -3444,11 +3451,8 @@ final_link_relocate (asection *input_sec
     case R_PARISC_DLTIND21L:
     case R_PARISC_DLTIND14R:
     case R_PARISC_DLTIND14F:
-    case R_PARISC_TLS_GD21L:
     case R_PARISC_TLS_GD14R:
-    case R_PARISC_TLS_LDM21L:
     case R_PARISC_TLS_LDM14R:
-    case R_PARISC_TLS_IE21L:
     case R_PARISC_TLS_IE14R:
       value -= elf_gp (input_section->output_section->owner);
       break;
--
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On Wed, Jan 27, 2010 at 12:06 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> In trying to debug a new gcc testsuite failure, I tried to link the
> application with -static to simplify debugging. =A0It turns out we ha=
ve
> a couple of problems in linking threaded applications with -static.

Thanks for looking into this.

> The first problem is the linker does change r19 to dp for various TLS
> relocations using the global pointer. =A0I've attached a patch below
> to which I think fixes this problem.

OK.

> The second issue is the handling of the symbol __nptl_threads.
> We get a segmentation fault at startup here:
>
> 0x000223bc <__libc_start_main+600>: =A0 =A0 addil L%0,r0,r1
> 0x000223c0 <__libc_start_main+604>: =A0 =A0 ldo 0(r1),r3
> 0x000223c4 <__libc_start_main+608>: =A0 =A0 ldw 0(r3),rp
>
> The relocations are:
>
> 00000258 R_PARISC_DPREL21L =A0__nptl_nthreads
> 0000025c R_PARISC_DPREL14R =A0__nptl_nthreads
>
> The original code:
>
> =A0258: =A0 2b 60 00 00 =A0 =A0 addil L%0,dp,r1
> =A025c: =A0 34 23 00 00 =A0 =A0 ldo 0(r1),r3
> =A0260: =A0 0c 60 10 82 =A0 =A0 ldw 0(r3),rp
>
> __nptl_nthreads is undefined weak:
>
> =A0 =A0 =A0 =A0 w __nptl_nthreads

The symbol is defined in libpthread.so, specifically by
nptl/pthread_create.c "unsigned int __nptl_nthreads =3D 1;"

Application link map shows:
 .data          0x000a1648       0x14
/usr/lib/gcc/hppa-linux-gnu/4.3.4/../../../libpthread.a(pthread_create.=
o)
                0x000a1648                __nptl_nthreads

I don't see any segmentation fault, nor do I see an undefined weak
__nptl_nthreads:

  1600: 000a1648     4 OBJECT  GLOBAL DEFAULT   21 __nptl_nthreads

You need to provide me with more data about how the application is
built, it looks like your link might be incorrect.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:34 2018
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Subject: Re: Segmentation fault in __libc_start_main with -static
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On Fri, 29 Jan 2010, Carlos O'Donell wrote:

> On Wed, Jan 27, 2010 at 12:06 PM, John David Anglin
> > The original code:
> >
> > =A0258: =A0 2b 60 00 00 =A0 =A0 addil L%0,dp,r1
> > =A025c: =A0 34 23 00 00 =A0 =A0 ldo 0(r1),r3
> > =A0260: =A0 0c 60 10 82 =A0 =A0 ldw 0(r3),rp
> >
> > __nptl_nthreads is undefined weak:
> >
> > =A0 =A0 =A0 =A0 w __nptl_nthreads
>=20
> The symbol is defined in libpthread.so, specifically by
> nptl/pthread_create.c "unsigned int __nptl_nthreads =3D 1;"
>=20
> Application link map shows:
>  .data          0x000a1648       0x14
> /usr/lib/gcc/hppa-linux-gnu/4.3.4/../../../libpthread.a(pthread_creat=
e.o)
>                 0x000a1648                __nptl_nthreads
>=20
> I don't see any segmentation fault, nor do I see an undefined weak
> __nptl_nthreads:

Think you missed that I said the application was being linked with
-static.  As a result, pthread_create.o won't be loaded from libpthread=
=2Ea
just to resolve __nptl_nthreads.

This is the application:

// This test only applies to glibc (NPTL) targets.
// { dg-do run { target *-*-linux* } }
// { dg-options "-pthread" }

#include <pthread.h>
#include <cxxabi.h>
extern "C" int printf (const char *, ...);

int main()
{
  try
    {
      pthread_exit (0);
    }
  catch (abi::__forced_unwind &)
    {
      printf ("caught forced unwind\n");
      throw;
    }
  catch (...)
    {
      printf ("caught ...\n");
      return 1;
    }
}

This is the gcc link command:

/home/dave/gnu/gcc/objdir/gcc/testsuite/g++/../../collect-ld -static -o=
 ./forced.xgs /usr/lib/crt1.o /usr/lib/crti.o /home/dave/gnu/gcc/objdir=
/gcc/testsuite/g++/../../crtbeginT.o -L/home/dave/gnu/gcc/objdir/hppa-l=
inux/./libstdc++-v3/src/.libs -L/home/dave/gnu/gcc/objdir/hppa-linux/./=
libstdc++-v3/src/.libs -L/home/dave/gnu/gcc/objdir/hppa-linux/./libiber=
ty -L/home/dave/gnu/gcc/objdir/gcc/testsuite/g++/../.. -L/home/dave/gnu=
/gcc/objdir/hppa-linux/./libstdc++-v3/src/.libs /tmp/ccmLwpAe.o -lstdc+=
+ -lm --start-group -lgcc -lgcc_eh -lpthread -lc --end-group /home/dave=
/gnu/gcc/objdir/gcc/testsuite/g++/../../crtend.o /usr/lib/crtn.o

Compile with:

g++ -o xx -static -pthread xx.C

Given what you said, the same fault would likely occur on x86.

Dave
--=20
J. David Anglin                                  dave.anglin@nrc-cnrc.g=
c.ca
National Research Council of Canada              (613) 990-0752 (FAX: 9=
52-6602)
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On Fri, Jan 29, 2010 at 9:54 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> Think you missed that I said the application was being linked with
> -static. =A0As a result, pthread_create.o won't be loaded from libpth=
read.a
> just to resolve __nptl_nthreads.

I linked with -static, and it was resolved to pthread_create.o from
libpthread.a. However, my application called pthread_create *before*
calling pthread_exit.

> This is the application:
>
> // This test only applies to glibc (NPTL) targets.
> // { dg-do run { target *-*-linux* } }
> // { dg-options "-pthread" }
>
> #include <pthread.h>
> #include <cxxabi.h>
> extern "C" int printf (const char *, ...);
>
> int main()
> {
> =A0try
> =A0 =A0{
> =A0 =A0 =A0pthread_exit (0);
> =A0 =A0}
> =A0catch (abi::__forced_unwind &)
> =A0 =A0{
> =A0 =A0 =A0printf ("caught forced unwind\n");
> =A0 =A0 =A0throw;
> =A0 =A0}
> =A0catch (...)
> =A0 =A0{
> =A0 =A0 =A0printf ("caught ...\n");
> =A0 =A0 =A0return 1;
> =A0 =A0}
> }
>
> This is the gcc link command:
>
> /home/dave/gnu/gcc/objdir/gcc/testsuite/g++/../../collect-ld -static =
-o ./forced.xgs /usr/lib/crt1.o /usr/lib/crti.o /home/dave/gnu/gcc/objd=
ir/gcc/testsuite/g++/../../crtbeginT.o -L/home/dave/gnu/gcc/objdir/hppa=
-linux/./libstdc++-v3/src/.libs -L/home/dave/gnu/gcc/objdir/hppa-linux/=
=2E/libstdc++-v3/src/.libs -L/home/dave/gnu/gcc/objdir/hppa-linux/./lib=
iberty -L/home/dave/gnu/gcc/objdir/gcc/testsuite/g++/../.. -L/home/dave=
/gnu/gcc/objdir/hppa-linux/./libstdc++-v3/src/.libs /tmp/ccmLwpAe.o -ls=
tdc++ -lm --start-group -lgcc -lgcc_eh -lpthread -lc --end-group /home/=
dave/gnu/gcc/objdir/gcc/testsuite/g++/../../crtend.o /usr/lib/crtn.o
>
> Compile with:
>
> g++ -o xx -static -pthread xx.C
>
> Given what you said, the same fault would likely occur on x86.

This isn't supported by glibc. You must pull in pthread_create.o if
you call pthread_exit(). Otherwise nothing defines __nptl_nthreads.

This test crashes on x86.
carlos@crasus:~$ readelf -a test | grep __nptl_nthreads
  1863: 00000000     0 NOTYPE  WEAK   DEFAULT  UND __nptl_nthreads

carlos@crasus:~$ ./test
caught forced unwind
Segmentation fault

I don't know why it crashes so late on x86, perhaps during another
operation that manipulate ptr_nthreads?

We blow up in nptl-ini.c during the static initialization that sets
ptr_nthreads to &__nptl_nthreads e.g.
~~~
static const struct pthread_functions pthread_functions =3D
  {
    .ptr_pthread_attr_destroy =3D __pthread_attr_destroy,
=2E..
    .ptr_nthreads =3D &__nptl_nthreads,
    .ptr___pthread_unwind =3D &__pthread_unwind,
    .ptr__nptl_deallocate_tsd =3D __nptl_deallocate_tsd,
    .ptr__nptl_setxid =3D __nptl_setxid,
    /* For now only the stack cache needs to be freed.  */
    .ptr_freeres =3D nptl_freeres
  };
~~~

This is technically a generic glibc bug.

Does linking with `-u pthread_create` fix the testcase? It fixes the
failure on x86.

Cheers,
Carlos.
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> This is technically a generic glibc bug.
> 
> Does linking with `-u pthread_create` fix the testcase? It fixes the
> failure on x86.

Yes, the segv doesn't happen and the program executes correctly.  However,
it's broken with gcc head when static linking isn't used.  Still trying to
determine which gcc revision caused the regression.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Jan 16, 2010 at 6:17 PM, Helge Deller <deller@gmx.de> wrote:
> This coding seems to indicate that we call _exit(), but we aren't (as
> you see above in the strace).
> So I'm wondering if the "bl _exit,%rp" needs changing.
> Something with HIDDEN_JUMPTARGET(_exit) or similar, so that
> _exit() instead of exit() is called?
>
> Actually I did tested this with the minifail test program, and change=
d
> thread_run() to call _exit(0) at the end instead of "return 0":
> void* thread_run(void* arg) {
> =A0 =A0 =A0 =A0...
> /* =A0 =A0 =A0return (void *)&status; =A0*/
> =A0 =A0 =A0 =A0_exit(0);
> }
> With strace I then suddenly got exit_group() which seems more correct=
:
> [pid =A01910] write(1, "Thread OK.\n", 11) =3D 11
> [pid =A01910] exit_group(0) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =3D ?

I agree with this analysis. I'm testing a change which uses
HIDDEN_JUMPTARGET(). I will tell you how it goes.

Calling exit_group is important for threads.

Cheers,
Carlos.
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Subject: Questions about hppa *context functions.
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--0016e649820cf77a36047e784f02
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Helge,

On December 15th, 2009 an additional *context test was added to glibc,
see stdlib/tst-makecontext3.c.

This test fails on hppa with:
~~~
makecontext: does not know how to handle more than 8 arguments
~~~

I have a couple of questions and comments about hppa's *context implementation:

1. Why limit the number of input arguments to 8?

The ABI should allow an unlimited number of arguments to be placed on
the stack. It is up to the caller to make sure that
ucp->uc_stack.ss_sp points to enough space to hold all of the
additional arguments.

2. It doesn't appear that the current implementation transfers
ucp->uc_stack.ss_sp to the stack pointer when makecontext() is called.

Take a look at:
http://www.opengroup.org/onlinepubs/009695399/functions/makecontext.html

The caller can set an alternate stack by setting ucp->uc_stack.ss_sp,
and makecontext should likely do:
ucp->uc_mcontext.sc_gr[30] = ucp->uc_stack.ss_sp + <space required by args>;

3. POSIX says that all the arguments must be of type int, but in a
comment you write "XXX: This implementation only handles integer
arguments."

Is there any reason this comment should stay there?

To give you an example, I'm attaching a modified makecontext.diff for
you to comment on.

Cheers,
Carlos.

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Hi Carlos,

Could you look at GCC target/42850?  This is for the same testcase.

It looks like glibc either has a hidden dependence on libgcc_s, or
we have a dynamic loader bug.  See comment #3.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Jan 31, 2010 at 11:39 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> Could you look at GCC target/42850? =A0This is for the same testcase.
>
> It looks like glibc either has a hidden dependence on libgcc_s, or
> we have a dynamic loader bug. =A0See comment #3.

Hidden? :-)

The implementation of pthread_cancel_init in NPTL uses the unwinder in
libgcc_s.so.

Each target must tell glibc which version of the library is *current*
in order for glibc to dlopen that version and use the provided
unwinder.

We define it like this:
glibc-ports/sysdeps/hppa/libgcc_s.h
/* Name of libgcc_s library provided by gcc.  */
#define LIBGCC_S_SO "libgcc_s.so.4"

If you bump the version number you need to tell me, and then we
coordinate with debian to release a new libgcc_s.so, followed by an
updated glibc.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:35 2018
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> We define it like this:
> glibc-ports/sysdeps/hppa/libgcc_s.h
> /* Name of libgcc_s library provided by gcc.  */
> #define LIBGCC_S_SO "libgcc_s.so.4"
> 
> If you bump the version number you need to tell me, and then we
> coordinate with debian to release a new libgcc_s.so, followed by an
> updated glibc.

Ugh!  This means that the change in unwind behavior (signal frames)
would need to be backported to all active GCC versions.  libgcj would
also need fixing.  In principle, the whole application base would
need recompilation to update to the new glibc version.

I guess the minimal impact is to accept that the change in unwind
behavior will break a few programs.  The java exception support
compensated for the bug.  I'll back out the version bump.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Jan 31, 2010 at 12:13 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> We define it like this:
>> glibc-ports/sysdeps/hppa/libgcc_s.h
>> /* Name of libgcc_s library provided by gcc. =A0*/
>> #define LIBGCC_S_SO "libgcc_s.so.4"
>>
>> If you bump the version number you need to tell me, and then we
>> coordinate with debian to release a new libgcc_s.so, followed by an
>> updated glibc.
>
> Ugh! =A0This means that the change in unwind behavior (signal frames)
> would need to be backported to all active GCC versions. =A0libgcj wou=
ld
> also need fixing. =A0In principle, the whole application base would
> need recompilation to update to the new glibc version.

Could you explain the change in more detail?

You should only have to rebuild the whole application base if you
break the unwind ABI.

> I guess the minimal impact is to accept that the change in unwind
> behavior will break a few programs. =A0The java exception support
> compensated for the bug. =A0I'll back out the version bump.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:35 2018
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> Could you explain the change in more detail?

The change is to set fs->signal_frame = 1 in signal frames in
pa32_fallback_frame_state.  This affects the determination as to whether
the IP is before or after the first not yet fully executed instruction
in a frame.  This feature was added in 2006 by Jakub Jelinek, but
pa32_fallback_frame_state was not changed.

This fixes unwinding in Ada (corner case).  It probably fixes corner
causes for other languages.  However, it breaks a number of Java testcases.
The problem is compensated for in the definition used for MAKE_THROW_FRAME
in libjava/include/pa-signal.h and hppa-signal.h.

The Ada testcase that exposed this problem is new for 4.5.

I'd hoped to bump the libgcc_s version so as to not break existing
applications, but that appears impossible.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Jan 31, 2010 at 1:52 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> Could you explain the change in more detail?
>
> The change is to set fs->signal_frame =3D 1 in signal frames in
> pa32_fallback_frame_state. =A0This affects the determination as to wh=
ether
> the IP is before or after the first not yet fully executed instructio=
n
> in a frame. =A0This feature was added in 2006 by Jakub Jelinek, but
> pa32_fallback_frame_state was not changed.

OK.

> This fixes unwinding in Ada (corner case). =A0It probably fixes corne=
r
> causes for other languages. =A0However, it breaks a number of Java te=
stcases.
> The problem is compensated for in the definition used for MAKE_THROW_=
=46RAME
> in libjava/include/pa-signal.h and hppa-signal.h.
>
> The Ada testcase that exposed this problem is new for 4.5.
>
> I'd hoped to bump the libgcc_s version so as to not break existing
> applications, but that appears impossible.

No, unfortunately the implementation of pthread_cancel() needs to use
the unwinder, and that means glibc assumes that the latest libgcc_s.so
can always unwind old code using some sort of fallback.

Cheers,
Carlos.
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: Questions about hppa *context functions.
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On Sun, Jan 31, 2010 at 11:25 AM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> Helge,
>
> On December 15th, 2009 an additional *context test was added to glibc,
> see stdlib/tst-makecontext3.c.
>
> This test fails on hppa with:
> ~~~
> makecontext: does not know how to handle more than 8 arguments
> ~~~

New patch attached with additional changes:
* Align the incoming stack to 64-bytes.
* Adjust for frame.
* Adjust saved stack pointer.

The following patch allows the new test to pass for the 32-bit runtime.

I can't guarantee this works for a 64-bit runtime.

Helge, can you comment on the attached patch?

Cheers,
Carlos.

--0016e6dab18e3017ea047e7b8875
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From - Thu Nov 08 21:05:35 2018
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Subject: Re: Questions about hppa *context functions.
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On 01/31/2010 09:15 PM, Carlos O'Donell wrote:
> On Sun, Jan 31, 2010 at 11:25 AM, Carlos O'Donell
> <carlos@systemhalted.org>  wrote:
>> Helge,
>>
>> On December 15th, 2009 an additional *context test was added to glibc,
>> see stdlib/tst-makecontext3.c.
>>
>> This test fails on hppa with:
>> ~~~
>> makecontext: does not know how to handle more than 8 arguments
>> ~~~
>
> New patch attached with additional changes:
> * Align the incoming stack to 64-bytes.
> * Adjust for frame.
> * Adjust saved stack pointer.
>
> The following patch allows the new test to pass for the 32-bit runtime.
>
> I can't guarantee this works for a 64-bit runtime.
>
> Helge, can you comment on the attached patch?

Carlos,

thanks a lot for your work!

First of all, if it works, I'm fine with it.

One minor question:
I'm used to test sizeof long instead of sizeof int to check for 32/64bit.
You changed it to "(sizeof(unsigned int) == 8)".
I always thought a long is usually the type of a register, while an int can be anything.

> 1. Why limit the number of input arguments to 8?

I didn't had real reasons.
At some point I read that software usually should not rely on the fact that the
*context funtions  can handle more than 4 arguments. To be on the safe side, software
should better hand over a pointer to a struct in one of the first 4 arguments.
But with your patch, which extends it for parisc to more than 8 arguments, it's even better :-)

> 2. It doesn't appear that the current implementation transfers
> ucp->uc_stack.ss_sp to the stack pointer when makecontext() is called.

You seem to have fixed this in your patch.

> 3. POSIX says that all the arguments must be of type int, but in a
> comment you write "XXX: This implementation only handles integer
> arguments."
> Is there any reason this comment should stay there?

Yep. Just drop it.


Again, I didn't tested you patch, but just by looking at it, it seems OK.

Thanks,
Helge
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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On 01/29/2010 06:53 PM, Carlos O'Donell wrote:
> On Sat, Jan 16, 2010 at 6:17 PM, Helge Deller<deller@gmx.de>  wrote:
>> This coding seems to indicate that we call _exit(), but we aren't (as
>> you see above in the strace).
>> So I'm wondering if the "bl _exit,%rp" needs changing.
>> Something with HIDDEN_JUMPTARGET(_exit) or similar, so that
>> _exit() instead of exit() is called?
>>
>> Actually I did tested this with the minifail test program, and changed
>> thread_run() to call _exit(0) at the end instead of "return 0":
>> void* thread_run(void* arg) {
>>         ...
>> /*      return (void *)&status;  */
>>         _exit(0);
>> }
>> With strace I then suddenly got exit_group() which seems more correct:
>> [pid  1910] write(1, "Thread OK.\n", 11) = 11
>> [pid  1910] exit_group(0)               = ?
>
> I agree with this analysis. I'm testing a change which uses
> HIDDEN_JUMPTARGET(). I will tell you how it goes.

I think I tested it once, and it doesn't help.
Threads are started by calling start_thread(), and I think we need changes there, e.g. (untested):

diff -up ./nptl/pthread_create.c.org ./nptl/pthread_create.c
--- ./nptl/pthread_create.c.org 2010-01-17 20:54:19.000000000 +0100
+++ ./nptl/pthread_create.c     2010-01-17 20:56:24.000000000 +0100
@@ -316,7 +316,7 @@ start_thread (void *arg)
       is no thread left.  */
    if (__builtin_expect (atomic_decrement_and_test (&__nptl_nthreads), 0))
      /* This was the last thread.  */
-    exit (0);
+    _exit (0);
                                                                                                                                            
    /* Report the death of the thread if this is wanted.  */
    if (__builtin_expect (pd->report_events, 0))
  

> Calling exit_group is important for threads.

Yep.

Helge
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On Sun, Jan 31, 2010 at 3:47 PM, Helge Deller <deller@gmx.de> wrote:
> Carlos,
>
> thanks a lot for your work!
>
> First of all, if it works, I'm fine with it.
>
> One minor question:
> I'm used to test sizeof long instead of sizeof int to check for 32/64=
bit.
> You changed it to "(sizeof(unsigned int) =3D=3D 8)".
> I always thought a long is usually the type of a register, while an i=
nt can
> be anything.

You are correct, this code is wrong. Since hppa64 is LP64, and hppa32
is ILP32, the only way to tell the difference between the two is by
using "sizeof(unsigned long)" or "sizeof(void *)", the two types which
differ between the ABIs.

>> 1. Why limit the number of input arguments to 8?
>
> I didn't had real reasons.
> At some point I read that software usually should not rely on the fac=
t that
> the
> *context funtions =A0can handle more than 4 arguments. To be on the s=
afe side,
> software
> should better hand over a pointer to a struct in one of the first 4
> arguments.
> But with your patch, which extends it for parisc to more than 8 argum=
ents,
> it's even better :-)

OK, perfect, the new implementation should handle as many arguments as
you have stack space.

>> 2. It doesn't appear that the current implementation transfers
>> ucp->uc_stack.ss_sp to the stack pointer when makecontext() is calle=
d.
>
> You seem to have fixed this in your patch.

Yes, I did fix this, I was just curious if you considered this in the
initial implementation?

>> 3. POSIX says that all the arguments must be of type int, but in a
>> comment you write "XXX: This implementation only handles integer
>> arguments."
>> Is there any reason this comment should stay there?
>
> Yep. Just drop it.

Thanks.

> Again, I didn't tested you patch, but just by looking at it, it seems=
 OK.

Thanks.

Cheers,
Carlos.
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> >> Actually I did tested this with the minifail test program, and changed
> >> thread_run() to call _exit(0) at the end instead of "return 0":
> >> void* thread_run(void* arg) {
> >>         ...
> >> /*      return (void *)&status;  */
> >>         _exit(0);
> >> }
> >> With strace I then suddenly got exit_group() which seems more correct:
> >> [pid  1910] write(1, "Thread OK.\n", 11) = 11
> >> [pid  1910] exit_group(0)               = ?

Did this fix minifail?

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Jan 28, 2010 at 11:56 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> >> Actually I did tested this with the minifail test program, and ch=
anged
>> >> thread_run() to call _exit(0) at the end instead of "return 0":
>> >> void* thread_run(void* arg) {
>> >> =A0 =A0 =A0 =A0 ...
>> >> /* =A0 =A0 =A0return (void *)&status; =A0*/
>> >> =A0 =A0 =A0 =A0 _exit(0);
>> >> }
>> >> With strace I then suddenly got exit_group() which seems more cor=
rect:
>> >> [pid =A01910] write(1, "Thread OK.\n", 11) =3D 11
>> >> [pid =A01910] exit_group(0) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =3D ?
>
> Did this fix minifail?

Do you have a copy of minifail I can run as a contained test case?

Cheers,
Carlos.
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ping?

On Sat, Dec 26, 2009 at 01:20:50PM -0500, Kyle McMartin wrote:
> So I wired up sys_accept4 over lunch today... it works ok in general,
> and takes arguments such that it doesn't need a wrapper (yay.)
> 
> Problem. O_CLOEXEC is special on parisc because of the HPUX gunk which
> makes everything miserable. The value in glibc is one bit off the value
> in the kernel, and kaboom. No worky syscall.
> 
> Carlos, patch included below, tested with test_accept4.c, from Ulrich's
> commit adding this syscall, modified (fixed) version of the test case
> is attached to this email unless I'm a muppet and forgot.
> 
> Happy hacking^WHolidays, Kyle
> 
> diff --git a/ChangeLog.hppa b/ChangeLog.hppa
> index 24a152e..4ce4cc7 100644
> --- a/ChangeLog.hppa
> +++ b/ChangeLog.hppa
> @@ -1,3 +1,7 @@
> +2009-12-26  Kyle McMartin   <kyle@redhat.com>
> +	* sysdeps/unix/sysv/linux/hppa/bits/socket.h: Fix value of
> +	SOCK_CLOEXEC to match O_CLOEXEC.
> +
>  2009-11-25  Carlos O'Donell  <carlos@codesourcery.com>
>  
>  	* sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h:
> diff --git a/sysdeps/unix/sysv/linux/hppa/bits/socket.h b/sysdeps/unix/sysv/linux/hppa/bits/socket.h
> index ac6e81b..d552d85 100644
> --- a/sysdeps/unix/sysv/linux/hppa/bits/socket.h
> +++ b/sysdeps/unix/sysv/linux/hppa/bits/socket.h
> @@ -62,7 +62,7 @@ enum __socket_type
>    /* Flags to be ORed into the type parameter of socket and socketpair and
>       used for the flags parameter of paccept.  */
>  
> -  SOCK_CLOEXEC = 02000000,	/* Atomically set close-on-exec flag for the
> +  SOCK_CLOEXEC = 01000000,	/* Atomically set close-on-exec flag for the
>  				   new descriptor(s).  */
>  #define SOCK_CLOEXEC SOCK_CLOEXEC
>  #undef SOCK_NONBLOCK

> /* test_accept4.c
> 
>   Copyright (C) 2008, Linux Foundation, written by Michael Kerrisk
>        <mtk.manpages@gmail.com>
> 
>   Licensed under the GNU GPLv2 or later.
> */
> #define _GNU_SOURCE
> #include <unistd.h>
> #include <sys/syscall.h>
> #include <sys/socket.h>
> #include <netinet/in.h>
> #include <stdlib.h>
> #include <fcntl.h>
> #include <stdio.h>
> #include <string.h>
> 
> #define PORT_NUM 33333
> 
> #define die(msg) do { perror(msg); exit(EXIT_FAILURE); } while (0)
> 
> /**********************************************************************/
> 
> /* The following is what we need until glibc gets a wrapper for
>   accept4() */
> 
> /* Flags for socket(), socketpair(), accept4() */
> #undef SOCK_CLOEXEC
> #define SOCK_CLOEXEC    010000000
> #ifndef SOCK_NONBLOCK
> #define SOCK_NONBLOCK   O_NONBLOCK
> #endif
> 
> #define SYS_accept4 319
> 
> static int
> __accept4(int fd, struct sockaddr *sockaddr, socklen_t *addrlen, int flags)
> {
>    printf("Calling accept4(): flags = 0x%x", flags);
>    if (flags != 0) {
>        printf(" (");
>        if (flags & SOCK_CLOEXEC)
>            printf("SOCK_CLOEXEC");
>        if ((flags & SOCK_CLOEXEC) && (flags & SOCK_NONBLOCK))
>            printf(" ");
>        if (flags & SOCK_NONBLOCK)
>            printf("SOCK_NONBLOCK");
>        printf(")");
>    }
>    printf("\n");
> 
> #if USE_SOCKETCALL
>    long args[6];
> 
>    args[0] = fd;
>    args[1] = (long) sockaddr;
>    args[2] = (long) addrlen;
>    args[3] = flags;
> 
>    return syscall(SYS_socketcall, SYS_ACCEPT4, args);
> #else
>    return syscall(SYS_accept4, fd, sockaddr, addrlen, flags);
> #endif
> }
> 
> /**********************************************************************/
> 
> static int
> do_test(int lfd, struct sockaddr_in *conn_addr,
>        int closeonexec_flag, int nonblock_flag)
> {
>    int connfd, acceptfd;
>    int fdf, flf, fdf_pass, flf_pass;
>    struct sockaddr_in claddr;
>    socklen_t addrlen;
> 
>    printf("=======================================\n");
> 
>    connfd = socket(AF_INET, SOCK_STREAM, 0);
>    if (connfd == -1)
>        die("socket");
>    if (connect(connfd, (struct sockaddr *) conn_addr,
>                sizeof(struct sockaddr_in)) == -1)
>        die("connect");
> 
>    addrlen = sizeof(struct sockaddr_in);
>    acceptfd = __accept4(lfd, (struct sockaddr *) &claddr, &addrlen,
>                       closeonexec_flag | nonblock_flag);
>    if (acceptfd == -1) {
>        perror("accept4()");
>        close(connfd);
>        return 0;
>    }
> 
>    fdf = fcntl(acceptfd, F_GETFD);
>    if (fdf == -1)
>        die("fcntl:F_GETFD");
>    fdf_pass = ((fdf & FD_CLOEXEC) != 0) ==
>               ((closeonexec_flag & SOCK_CLOEXEC) != 0);
>    printf("Close-on-exec flag is %sset (%s); ",
>            (fdf & FD_CLOEXEC) ? "" : "not ",
>            fdf_pass ? "OK" : "failed");
> 
>    flf = fcntl(acceptfd, F_GETFL);
>    if (flf == -1)
>        die("fcntl:F_GETFD");
>    flf_pass = ((flf & O_NONBLOCK) != 0) ==
>               ((nonblock_flag & SOCK_NONBLOCK) !=0);
>    printf("nonblock flag is %sset (%s)\n",
>            (flf & O_NONBLOCK) ? "" : "not ",
>            flf_pass ? "OK" : "failed");
> 
>    close(acceptfd);
>    close(connfd);
> 
>    printf("Test result: %s\n", (fdf_pass && flf_pass) ? "PASS" : "FAIL");
>    return fdf_pass && flf_pass;
> }
> 
> static int
> create_listening_socket(int port_num)
> {
>    struct sockaddr_in svaddr;
>    int lfd;
>    int optval;
> 
>    memset(&svaddr, 0, sizeof(struct sockaddr_in));
>    svaddr.sin_family = AF_INET;
>    svaddr.sin_addr.s_addr = htonl(INADDR_ANY);
>    svaddr.sin_port = htons(port_num);
> 
>    lfd = socket(AF_INET, SOCK_STREAM, 0);
>    if (lfd == -1)
>        die("socket");
> 
>    optval = 1;
>    if (setsockopt(lfd, SOL_SOCKET, SO_REUSEADDR, &optval,
>                   sizeof(optval)) == -1)
>        die("setsockopt");
> 
>    if (bind(lfd, (struct sockaddr *) &svaddr,
>             sizeof(struct sockaddr_in)) == -1)
>        die("bind");
> 
>    if (listen(lfd, 5) == -1)
>        die("listen");
> 
>    return lfd;
> }
> 
> int
> main(int argc, char *argv[])
> {
>    struct sockaddr_in conn_addr;
>    int lfd;
>    int port_num;
>    int passed;
> 
>    passed = 1;
> 
>    port_num = (argc > 1) ? atoi(argv[1]) : PORT_NUM;
> 
>    memset(&conn_addr, 0, sizeof(struct sockaddr_in));
>    conn_addr.sin_family = AF_INET;
>    conn_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
>    conn_addr.sin_port = htons(port_num);
> 
>    lfd = create_listening_socket(port_num);
> 
>    if (!do_test(lfd, &conn_addr, 0, 0))
>        passed = 0;
>    if (!do_test(lfd, &conn_addr, SOCK_CLOEXEC, 0))
>        passed = 0;
>    if (!do_test(lfd, &conn_addr, 0, SOCK_NONBLOCK))
>        passed = 0;
>    if (!do_test(lfd, &conn_addr, SOCK_CLOEXEC, SOCK_NONBLOCK))
>        passed = 0;
> 
>    close(lfd);
> 
>    exit(passed ? EXIT_SUCCESS : EXIT_FAILURE);
> }

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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: sys_accept4, SOCK_CLOEXEC, misc, bonghits, and others...
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On Mon, Feb 1, 2010 at 8:54 AM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> ping?

Thanks for the ping.

> On Sat, Dec 26, 2009 at 01:20:50PM -0500, Kyle McMartin wrote:
>> So I wired up sys_accept4 over lunch today... it works ok in general=
,
>> and takes arguments such that it doesn't need a wrapper (yay.)
>>
>> Problem. O_CLOEXEC is special on parisc because of the HPUX gunk whi=
ch
>> makes everything miserable. The value in glibc is one bit off the va=
lue
>> in the kernel, and kaboom. No worky syscall.
>>
>> Carlos, patch included below, tested with test_accept4.c, from Ulric=
h's
>> commit adding this syscall, modified (fixed) version of the test cas=
e
>> is attached to this email unless I'm a muppet and forgot.
>>
>> Happy hacking^WHolidays, Kyle
>>
>> diff --git a/ChangeLog.hppa b/ChangeLog.hppa
>> index 24a152e..4ce4cc7 100644
>> --- a/ChangeLog.hppa
>> +++ b/ChangeLog.hppa
>> @@ -1,3 +1,7 @@
>> +2009-12-26 =A0Kyle McMartin =A0 <kyle@redhat.com>
>> + =A0 =A0 * sysdeps/unix/sysv/linux/hppa/bits/socket.h: Fix value of
>> + =A0 =A0 SOCK_CLOEXEC to match O_CLOEXEC.
>> +
>> =A02009-11-25 =A0Carlos O'Donell =A0<carlos@codesourcery.com>
>>
>> =A0 =A0 =A0 * sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h:
>> diff --git a/sysdeps/unix/sysv/linux/hppa/bits/socket.h b/sysdeps/un=
ix/sysv/linux/hppa/bits/socket.h
>> index ac6e81b..d552d85 100644
>> --- a/sysdeps/unix/sysv/linux/hppa/bits/socket.h
>> +++ b/sysdeps/unix/sysv/linux/hppa/bits/socket.h
>> @@ -62,7 +62,7 @@ enum __socket_type
>> =A0 =A0/* Flags to be ORed into the type parameter of socket and soc=
ketpair and
>> =A0 =A0 =A0 used for the flags parameter of paccept. =A0*/
>>
>> - =A0SOCK_CLOEXEC =3D 02000000, =A0 /* Atomically set close-on-exec =
flag for the
>> + =A0SOCK_CLOEXEC =3D 01000000, =A0 /* Atomically set close-on-exec =
flag for the
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0n=
ew descriptor(s). =A0*/
>> =A0#define SOCK_CLOEXEC SOCK_CLOEXEC
>> =A0#undef SOCK_NONBLOCK

IIUC SOCK_CLOEXEC only works in 2.6.27 or higher with accept4?

In which case, since accept4 has never existed before, it's OK to
change this value?

Cheers,
Carlos.
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From - Thu Nov 08 21:05:36 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex wait failure
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--9jxsPFA5p3P2qPhR
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On Mon, 01 Feb 2010, Carlos O'Donell wrote:

> Do you have a copy of minifail I can run as a contained test case?

I've attached two versions -- the original and a simpler revised version.

The revised version shows that this is a clone/fork problem.  If the
parent waits for the child thread to set run before forking, the test
doesn't fail.  If the static definition of run is changed to 1, the
test fails.  I had added some loops at one time to show that this isn't
an exit issue. 

This is not to say that Helge isn't right about threads incorrectly using
exit.

The failure is always the stack of the child thread is overwritten with
zeros.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--9jxsPFA5p3P2qPhR
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="minifail.cpp"

#include <QtCore/QCoreApplication>
#include <QtCore/QThread>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>

class MyThread : public QThread
{
	void run();
};

void MyThread::run() {
	printf("Thread OK.\n");
}

int qt_test(int argc, char** argv) {
	QCoreApplication app(argc, argv);

	MyThread thread;
	thread.start();

	int p[2];
	char buf;
	pipe(p);

	switch (fork()) {
		case -1:
			perror("fork() failed");
		case 0:
			printf("Child OK.\n");
			write(p[1], "\0", 1);
			exit(0);
		default:
			break;
		
	}
	close(p[1]);
	read(p[0], &buf, 1);
	thread.wait();
	return 0;
}

void* thread_run(void* arg) {
	printf("Thread OK.\n");
}

int pure_test() {
	pthread_t thread;
	pthread_create(&thread, NULL, thread_run, NULL);

	int p[2];
	char buf;
	pipe(p);

	switch (fork()) {
		case -1:
			perror("fork() failed");
		case 0:
			close(p[0]);
			printf("Child OK.\n");
			write(p[1], "\0", 1);
			exit(0);
		default:
			break;
		
	}
	
	close(p[1]);
	read(p[0], &buf, 1);
	pthread_join(thread, NULL);
	return 0;
}

int main(int argc, char** argv) {
	if (argc == 2) {
		if (!strcmp("qt", argv[1])) {
			return qt_test(argc, argv);
		}
	}
	return pure_test();
}

--9jxsPFA5p3P2qPhR
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="minifail6.cpp"

#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

/*
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=561203

  clone(child_stack=0x4088d040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x4108c4e8, tls=0x4108c900, child_tidptr=0x4108c4e8) = 14819
[pid 14819] set_robust_list(0x4108c4f0, 0xc) = 0
[pid 14818] clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x40002028) = 14820

 g++  minifail.cpp -o minifail -O0 -pthread -g

 i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail; done;

 */

static volatile int run;

void* thread_run(void* arg) {
	static long status;
	int i;
        
	run = 1;
	pthread_yield();
	for (i = 10000000; i; i--)
	   continue;
	write(1,"Thread OK.\n",11);
	return (void *)&status;
}

int pure_test() {
	pthread_t thread;
	pthread_create(&thread, NULL, thread_run, NULL);

	while (!run)
	  continue;
	switch (fork()) {
		case -1:
			perror("fork() failed");
		case 0:
			write(1,"Child OK.\n",10);
			_exit(0);
		default:
			break;
		
	}
	pthread_join(thread, NULL);
	return 0;
}

int main(int argc, char** argv) {
	return pure_test();
}

--9jxsPFA5p3P2qPhR--
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From - Thu Nov 08 21:05:36 2018
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On 02/01/2010 01:26 AM, John David Anglin wrote:
>>>> Actually I did tested this with the minifail test program, and changed
>>>> thread_run() to call _exit(0) at the end instead of "return 0":
>>>> void* thread_run(void* arg) {
>>>>          ...
>>>> /*      return (void *)&status;  */
>>>>          _exit(0);
>>>> }
>>>> With strace I then suddenly got exit_group() which seems more correct:
>>>> [pid  1910] write(1, "Thread OK.\n", 11) = 11
>>>> [pid  1910] exit_group(0)               = ?
>
> Did this fix minifail?

No, sadly it didn't fixed it.

Helge
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From - Thu Nov 08 21:05:36 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex wait failure
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To: deller@gmx.de (Helge Deller)
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> On 02/01/2010 01:26 AM, John David Anglin wrote:
> >>>> Actually I did tested this with the minifail test program, and changed
> >>>> thread_run() to call _exit(0) at the end instead of "return 0":
> >>>> void* thread_run(void* arg) {
> >>>>          ...
> >>>> /*      return (void *)&status;  */
> >>>>          _exit(0);
> >>>> }
> >>>> With strace I then suddenly got exit_group() which seems more correct:
> >>>> [pid  1910] write(1, "Thread OK.\n", 11) = 11
> >>>> [pid  1910] exit_group(0)               = ?
> >
> > Did this fix minifail?
> 
> No, sadly it didn't fixed it.

I tend to think clone/fork syscalls need to be guarded to ensure a stable
configuration while the syscall executes.  It may be the problem arises
because we use clone for fork.  Do any other targets do this?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:36 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: add strict copy size checks (v2)
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Add CONFIG_DEBUG_STRICT_USER_COPY_CHECKS, copied from the x86
implementation. Tested with 32 and 64bit kernel.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index bc989e5..7305ac8 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -12,4 +12,18 @@ config DEBUG_RODATA
          portion of the kernel code won't be covered by a TLB anymore.
          If in doubt, say "N".
 
+config DEBUG_STRICT_USER_COPY_CHECKS
+	bool "Strict copy size checks"
+	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
+	---help---
+	  Enabling this option turns a certain set of sanity checks for user
+	  copy operations into compile time failures.
+
+	  The copy_from_user() etc checks are there to help test if there
+	  are sufficient security checks on the length argument of
+	  the copy operation, by having gcc prove that the argument is
+	  within bounds.
+
+	  If unsure, or if you run an older (pre 4.4) gcc, say N.
+
 endmenu
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 7cf799d..ff4cf9d 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -7,6 +7,7 @@
 #include <asm/page.h>
 #include <asm/system.h>
 #include <asm/cache.h>
+#include <asm/errno.h>
 #include <asm-generic/uaccess-unaligned.h>
 
 #define VERIFY_READ 0
@@ -234,13 +235,35 @@ extern long lstrnlen_user(const char __user *,long);
 
 unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len);
 #define __copy_to_user copy_to_user
-unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len);
-#define __copy_from_user copy_from_user
+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long len);
 unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len);
 #define __copy_in_user copy_in_user
 #define __copy_to_user_inatomic __copy_to_user
 #define __copy_from_user_inatomic __copy_from_user
 
+extern void copy_from_user_overflow(void)
+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+        __compiletime_error("copy_from_user() buffer size is not provably correct")
+#else
+        __compiletime_warning("copy_from_user() buffer size is not provably correct")
+#endif
+;
+
+static inline unsigned long __must_check copy_from_user(void *to,
+                                          const void __user *from,
+                                          unsigned long n)
+{
+        int sz = __compiletime_object_size(to);
+        int ret = -EFAULT;
+
+        if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n))
+                ret = __copy_from_user(to, from, n);
+        else
+                copy_from_user_overflow();
+
+        return ret;
+}
+
 struct pt_regs;
 int fixup_exception(struct pt_regs *regs);
 
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index abf41f4..1dbca5c 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -475,7 +475,8 @@ unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len)
 	return pa_memcpy((void __force *)dst, src, len);
 }
 
-unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len)
+EXPORT_SYMBOL(__copy_from_user);
+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long len)
 {
 	mtsp(get_user_space(), 1);
 	mtsp(get_kernel_space(), 2);
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On Mon, Feb 1, 2010 at 2:11 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>>
>> No, sadly it didn't fixed it.
>
> I tend to think clone/fork syscalls need to be guarded to ensure a st=
able
> configuration while the syscall executes. =A0It may be the problem ar=
ises
> because we use clone for fork. =A0Do any other targets do this?

All targets call nptl/sysdeps/unix/sysv/linux/fork.c, which calls
ARCH_FORK, which is implemented using clone() for *all* targets.

In fact, owing to the POSIX atfork requirements, it's very difficult
to implement fork properly without using Linux clone.

Cheers,
Carlos.
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On Mon, Feb 01, 2010 at 09:11:23AM -0500, Carlos O'Donell wrote:
> IIUC SOCK_CLOEXEC only works in 2.6.27 or higher with accept4?
> 
> In which case, since accept4 has never existed before, it's OK to
> change this value?
> 

Well, it's never worked either, so I assume it's safe to change. The
main problem is glibc keeping a parallel copy of the system headers
instead of using the sanitized ones, since this means anything which
correctly used those headers has the right value.

(Basically... any userspace program compiled against the old glibc will
need to be rebuilt, but if we change it won't be any more broken than
they already have been.)

regards, Kyle
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On Mon, Feb 1, 2010 at 4:38 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Mon, Feb 01, 2010 at 09:11:23AM -0500, Carlos O'Donell wrote:
>> IIUC SOCK_CLOEXEC only works in 2.6.27 or higher with accept4?
>>
>> In which case, since accept4 has never existed before, it's OK to
>> change this value?
>>
>
> Well, it's never worked either, so I assume it's safe to change. The
> main problem is glibc keeping a parallel copy of the system headers
> instead of using the sanitized ones, since this means anything which
> correctly used those headers has the right value.

Applied to libc-ports. Thanks.

Yes, I agree completely. They are here for hysterical raisins, and
eventually I think glibc will shed them with time.

> (Basically... any userspace program compiled against the old glibc will
> need to be rebuilt, but if we change it won't be any more broken than
> they already have been.)

Good, that's what I like to hear :-)

Cheers,
Carlos.
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Great, thanks a million Carlos. I'll push accept4 up for the next cycle.

regards, Kyle

On Mon, Feb 01, 2010 at 05:55:39PM -0500, Carlos O'Donell wrote:
<snip>
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: drop unnecessary cast in __ldcw_align() macro
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__ldcw_align() can directly access the slock member of struct arch_spinlock_t
instead of using an ugly cast.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -160,7 +160,7 @@ static inline void set_eiem(unsigned long val)
    ldcd). */
 
 #define __PA_LDCW_ALIGNMENT	4
-#define __ldcw_align(a) ((volatile unsigned int *)a)
+#define __ldcw_align(a) (&(a)->slock)
 #define __LDCW	"ldcw,co"
 
 #endif /*!CONFIG_PA20*/
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I wonder if we have some problems with the LWS code path in the kernel
regarding atomic locking with futexes?

In arch/parisc/kernel/syscall.S we use a lock table called lws_lock_start[]
to guard the LWS code against other competing userspace processes.
I wonder if this really enough, esp. since we do implement futex syscalls
(e.g. clone/exit calls uses futex functions to change userspace values
because of CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID).

Do we maybe need to protect the LWS code path with the same locking table as the
generic kernel? Atomicity of futexes writing to userspace are not in sync
with the locking of the LWS/lws_lock_start[] code.

I tried to come up with a patch for that which I attached here, but sadly
it hangs as soon as the init process is started on a 64bit/SMP kernel.
So either my thinking here is stupid, or I do have a stupid coding bug.

Furthermore, the coding for futex_atomic_op_inuser() in
arch/parisc/include/asm/futex.h seems to miss real functionality.
I didn't looked closer into this though.

Helge

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Content-Disposition: attachment;
 filename="z1"

diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index ec787b4..50353bd 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -290,5 +290,11 @@ int main(void)
 	BLANK();
 	DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
 	BLANK();
+
+#ifdef CONFIG_SMP
+	DEFINE(ASM_ATOMIC_HASH_SIZE_SHIFT, __builtin_ffs(ATOMIC_HASH_SIZE)-1);
+	DEFINE(ASM_ATOMIC_HASH_ENTRY_SHIFT, __builtin_ffs(sizeof(__atomic_hash[0]))-1);
+#endif
+
 	return 0;
 }
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index cb71f3d..878f42c 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -128,6 +131,14 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_INFO "The 32-bit Kernel has started...\n");
 #endif
 
+	/* Consistency check on the size and alignments of our spinlocks */
+#ifdef CONFIG_SMP
+	BUILD_BUG_ON(sizeof(arch_spinlock_t) != __PA_LDCW_ALIGNMENT);
+	BUG_ON((unsigned long)&__atomic_hash[0] & (__PA_LDCW_ALIGNMENT-1));
+	BUG_ON((unsigned long)&__atomic_hash[1] & (__PA_LDCW_ALIGNMENT-1));
+#endif
+	BUILD_BUG_ON((1<<L1_CACHE_SHIFT) != L1_CACHE_BYTES);
+
 	pdc_console_init();
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f5f9602..7925a68 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -11,6 +11,7 @@
 #include <asm/unistd.h>
 #include <asm/errno.h>
 #include <asm/page.h>
+#include <asm/cache.h>
 #include <asm/psw.h>
 #include <asm/thread_info.h>
 #include <asm/assembly.h>
@@ -530,18 +527,17 @@ lws_compare_and_swap32:
 
 lws_compare_and_swap:
 #ifdef CONFIG_SMP
-	/* Load start of lock table */
-	ldil	L%lws_lock_start, %r20
-	ldo	R%lws_lock_start(%r20), %r28
+	/* Calculate lock table entry via ATOMIC_HASH(%r26) */
+	ldil	L%__atomic_hash, %r20
+	ldo	R%__atomic_hash(%r20), %r28
 
-	/* Extract four bits from r26 and hash lock (Bits 4-7) */
-	extru  %r26, 27, 4, %r20
+#ifdef CONFIG_64BIT
+	extrd,u %r26, 63-L1_CACHE_SHIFT, ASM_ATOMIC_HASH_SIZE_SHIFT, %r20
+#else
+	extru	%r26, 31-L1_CACHE_SHIFT, ASM_ATOMIC_HASH_SIZE_SHIFT, %r20
+#endif
+	shladd,l %r20, ASM_ATOMIC_HASH_ENTRY_SHIFT, %r28, %r20
 
-	/* Find lock to use, the hash is either one of 0 to
-	   15, multiplied by 16 (keep it 16-byte aligned)
-	   and add to the lock table offset. */
-	shlw	%r20, 4, %r20
-	add	%r20, %r28, %r20
 
 # if ENABLE_LWS_DEBUG
 	/*	
@@ -672,31 +668,6 @@ ENTRY(sys_call_table64)
 END(sys_call_table64)
 #endif
 
-#ifdef CONFIG_SMP
-	/*
-		All light-weight-syscall atomic operations 
-		will use this set of locks 
-
-		NOTE: The lws_lock_start symbol must be
-		at least 16-byte aligned for safe use
-		with ldcw.
-	*/
-	.section .data
-	.align	PAGE_SIZE
-ENTRY(lws_lock_start)
-	/* lws locks */
-	.rept 16
-	/* Keep locks aligned at 16-bytes */
-	.word 1
-	.word 0 
-	.word 0
-	.word 0
-	.endr
-END(lws_lock_start)
-	.previous
-#endif
-/* CONFIG_SMP for lws_lock_start */

From - Thu Nov 08 21:05:37 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: futex wait failure
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On Tue, 02 Feb 2010, Helge Deller wrote:

> I wonder if we have some problems with the LWS code path in the kernel
> regarding atomic locking with futexes?
>
> In arch/parisc/kernel/syscall.S we use a lock table called lws_lock_start[]
> to guard the LWS code against other competing userspace processes.
> I wonder if this really enough, esp. since we do implement futex syscalls
> (e.g. clone/exit calls uses futex functions to change userspace values
> because of CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID).
>
> Do we maybe need to protect the LWS code path with the same locking table 
> as the
> generic kernel? Atomicity of futexes writing to userspace are not in sync
> with the locking of the LWS/lws_lock_start[] code.
>
> I tried to come up with a patch for that which I attached here, but sadly
> it hangs as soon as the init process is started on a 64bit/SMP kernel.
> So either my thinking here is stupid, or I do have a stupid coding bug.
>
> Furthermore, the coding for futex_atomic_op_inuser() in
> arch/parisc/include/asm/futex.h seems to miss real functionality.
> I didn't looked closer into this though.

While locking may be a problem, it is not the main reason the minifail
program fails.  The program fails on my c3750 with a 32-bit UP kernel.
There is no locking in this kernel.  The LWS code relies on the scheduler
for atomicity.

I tried disabling interrupts around the crucial three instructions but
it didn't help.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Donation to Haiti.
 
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Thank Yours 
Mrs Jennifer Kohne

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On 02/03/2010 04:44 AM, John David Anglin wrote:
> On Tue, 02 Feb 2010, Helge Deller wrote:
>
>> I wonder if we have some problems with the LWS code path in the kernel
>> regarding atomic locking with futexes?
>>
>> In arch/parisc/kernel/syscall.S we use a lock table called lws_lock_start[]
>> to guard the LWS code against other competing userspace processes.
>> I wonder if this really enough, esp. since we do implement futex syscalls
>> (e.g. clone/exit calls uses futex functions to change userspace values
>> because of CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID).
>>
>> Do we maybe need to protect the LWS code path with the same locking table
>> as the
>> generic kernel? Atomicity of futexes writing to userspace are not in sync
>> with the locking of the LWS/lws_lock_start[] code.
>>
>> I tried to come up with a patch for that which I attached here, but sadly
>> it hangs as soon as the init process is started on a 64bit/SMP kernel.
>> So either my thinking here is stupid, or I do have a stupid coding bug.
>>
>> Furthermore, the coding for futex_atomic_op_inuser() in
>> arch/parisc/include/asm/futex.h seems to miss real functionality.
>> I didn't looked closer into this though.
>
> While locking may be a problem, it is not the main reason the minifail
> program fails.  The program fails on my c3750 with a 32-bit UP kernel.

Hmm, I can't reproduce it at the moment with a 32bit UP kernel on my
c3000. The minifail3 test program I currently use (to avoid glibc issues)
is attached.

> There is no locking in this kernel.  The LWS code relies on the scheduler
> for atomicity.

yep. This should then work an a UP kernel.

> I tried disabling interrupts around the crucial three instructions but
> it didn't help.

Ugh.

Anyway, my current patch which compiles and runs fine is attached here as
well. Maybe you want to try it on your SMP builds? It includes the syscall.S
changes you sent last time too.
In this version of the patch I added on own LWS locking hash table for user-space accesses,
which is used in the LWS code and when some (probably not all) put_user()/
get_user() calls are made in the futex code.

Feedback still welcome.

Helge

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#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

/*
 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=561203

 gcc  minifail3.c -o minifail3 -O0 -pthread -g

 Run as: i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail3; done;

 */

static volatile int run;

void* thread_run(void* arg) {
	write(1,"Thread OK.\n",11);
	_exit(0);
}

int main(int argc, char** argv) {
	pthread_t thread;
	pthread_create(&thread, NULL, thread_run, NULL);

	switch (fork()) {
		case -1:
			perror("fork() failed");
		case 0:
			write(1,"Child OK.\n",10);
			exit(0);
		default:
			break;
		
	}
	pthread_join(thread, NULL);
	return 0;
}

--------------010104090504020303010203
Content-Type: text/x-patch;
 name="parisc_lock_v2.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="parisc_lock_v2.patch"

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 716634d..18d57c8 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -24,29 +24,46 @@
  * Hash function to index into a different SPINLOCK.
  * Since "a" is usually an address, use one spinlock per cacheline.
  */
-#  define ATOMIC_HASH_SIZE 4
-#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_HASH_SIZE (4096/L1_CACHE_BYTES)  /* 4 */
+#  define ATOMIC_HASH(a)      (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_USER_HASH(a) (&(__atomic_user_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
 
 extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
+extern arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 
 /* Can't use raw_spin_lock_irq because of #include problems, so
  * this is the substitute */
-#define _atomic_spin_lock_irqsave(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);		\
+#define _atomic_spin_lock_irqsave_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;		\
 	local_irq_save(f);			\
 	arch_spin_lock(s);			\
 } while(0)
 
-#define _atomic_spin_unlock_irqrestore(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);			\
+#define _atomic_spin_unlock_irqrestore_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;			\
 	arch_spin_unlock(s);				\
 	local_irq_restore(f);				\
 } while(0)
 
+/* kernel memory locks */
+#define _atomic_spin_lock_irqsave(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_HASH(l))
+
+/* userspace memory locks */
+#define _atomic_spin_lock_irqsave_user(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_USER_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore_user(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_USER_HASH(l))
 
 #else
 #  define _atomic_spin_lock_irqsave(l,f) do { local_irq_save(f); } while (0)
 #  define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
+#  define _atomic_spin_lock_irqsave_user(l,f) _atomic_spin_lock_irqsave(l,f)
+#  define _atomic_spin_unlock_irqrestore_user(l,f) _atomic_spin_lock_irqsave_user(l,f)
 #endif
 
 /* This should get optimized out since it's never called.
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 0c705c3..7bc963e 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -55,6 +55,7 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 {
 	int err = 0;
 	int uval;
+	unsigned long flags;
 
 	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
 	 * our gateway page, and causes no end of trouble...
@@ -65,10 +66,15 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
 		return -EFAULT;
 
+	_atomic_spin_lock_irqsave_user(uaddr, flags);
+
 	err = get_user(uval, uaddr);
-	if (err) return -EFAULT;
-	if (uval == oldval)
-		err = put_user(newval, uaddr);
+	if (!err)
+		if (uval == oldval)
+			err = put_user(newval, uaddr);
+
+	_atomic_spin_unlock_irqrestore_user(uaddr, flags);
+
 	if (err) return -EFAULT;
 	return uval;
 }
diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
index d91357b..4653c77 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -160,7 +160,7 @@ static inline void set_eiem(unsigned long val)
    ldcd). */
 
 #define __PA_LDCW_ALIGNMENT	4
-#define __ldcw_align(a) ((volatile unsigned int *)a)
+#define __ldcw_align(a) (&(a)->slock)
 #define __LDCW	"ldcw,co"
 
 #endif /*!CONFIG_PA20*/
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index ec787b4..50353bd 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -290,5 +290,11 @@ int main(void)
 	BLANK();
 	DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
 	BLANK();
+
+#ifdef CONFIG_SMP
+	DEFINE(ASM_ATOMIC_HASH_SIZE_SHIFT, __builtin_ffs(ATOMIC_HASH_SIZE)-1);
+	DEFINE(ASM_ATOMIC_HASH_ENTRY_SHIFT, __builtin_ffs(sizeof(__atomic_hash[0]))-1);
+#endif
+
 	return 0;
 }
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index cb71f3d..878f42c 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -128,6 +131,14 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_INFO "The 32-bit Kernel has started...\n");
 #endif
 
+	/* Consistency check on the size and alignments of our spinlocks */
+#ifdef CONFIG_SMP
+	BUILD_BUG_ON(sizeof(arch_spinlock_t) != __PA_LDCW_ALIGNMENT);
+	BUG_ON((unsigned long)&__atomic_hash[0] & (__PA_LDCW_ALIGNMENT-1));
+	BUG_ON((unsigned long)&__atomic_hash[1] & (__PA_LDCW_ALIGNMENT-1));
+#endif
+	BUILD_BUG_ON((1<<L1_CACHE_SHIFT) != L1_CACHE_BYTES);
+
 	pdc_console_init();
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f5f9602..1f12418 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -11,6 +11,7 @@
 #include <asm/unistd.h>
 #include <asm/errno.h>
 #include <asm/page.h>
+#include <asm/cache.h>
 #include <asm/psw.h>
 #include <asm/thread_info.h>
 #include <asm/assembly.h>
@@ -47,18 +48,17 @@ ENTRY(linux_gateway_page)
 	KILL_INSN
 	.endr
 
-	/* ADDRESS 0xb0 to 0xb4, lws uses 1 insns for entry */
+	/* ADDRESS 0xb0 to 0xb8, lws uses two insns for entry */
 	/* Light-weight-syscall entry must always be located at 0xb0 */
 	/* WARNING: Keep this number updated with table size changes */
 #define __NR_lws_entries (2)
 
 lws_entry:
-	/* Unconditional branch to lws_start, located on the 
-	   same gateway page */
-	b,n	lws_start
+	gate	lws_start, %r0		/* increase privilege */
+	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
 
-	/* Fill from 0xb4 to 0xe0 */
-	.rept 11
+	/* Fill from 0xb8 to 0xe0 */
+	.rept 10
 	KILL_INSN
 	.endr
 
@@ -423,9 +423,6 @@ tracesys_sigexit:
 
 	*********************************************************/
 lws_start:
-	/* Gate and ensure we return to userspace */
-	gate	.+8, %r0
-	depi	3, 31, 2, %r31	/* Ensure we return to userspace */
 
 #ifdef CONFIG_64BIT
 	/* FIXME: If we are a 64-bit kernel just
@@ -473,7 +470,7 @@ lws_exit:
 	/* now reset the lowest bit of sp if it was set */
 	xor	%r30,%r1,%r30
 #endif
-	be,n	0(%sr3, %r31)
+	be,n	0(%sr7, %r31)
 
 
 	
@@ -530,18 +527,17 @@ lws_compare_and_swap32:
 
 lws_compare_and_swap:
 #ifdef CONFIG_SMP
-	/* Load start of lock table */
-	ldil	L%lws_lock_start, %r20
-	ldo	R%lws_lock_start(%r20), %r28
+	/* Calculate lock table entry via ATOMIC_HASH(%r26) */
+	ldil	L%__atomic_user_hash, %r20
+	ldo	R%__atomic_user_hash(%r20), %r28
 
-	/* Extract four bits from r26 and hash lock (Bits 4-7) */
-	extru  %r26, 27, 4, %r20
+#ifdef CONFIG_64BIT
+	extrd,u %r26, 63-L1_CACHE_SHIFT, ASM_ATOMIC_HASH_SIZE_SHIFT, %r20
+#else
+	extru	%r26, 31-L1_CACHE_SHIFT, ASM_ATOMIC_HASH_SIZE_SHIFT, %r20
+#endif
+	shladd,l %r20, ASM_ATOMIC_HASH_ENTRY_SHIFT, %r28, %r20
 
-	/* Find lock to use, the hash is either one of 0 to
-	   15, multiplied by 16 (keep it 16-byte aligned)
-	   and add to the lock table offset. */
-	shlw	%r20, 4, %r20
-	add	%r20, %r28, %r20
 
 # if ENABLE_LWS_DEBUG
 	/*	
@@ -672,31 +668,6 @@ ENTRY(sys_call_table64)
 END(sys_call_table64)
 #endif
 
-#ifdef CONFIG_SMP
-	/*
-		All light-weight-syscall atomic operations 
-		will use this set of locks 
-
-		NOTE: The lws_lock_start symbol must be
-		at least 16-byte aligned for safe use
-		with ldcw.
-	*/
-	.section .data
-	.align	PAGE_SIZE
-ENTRY(lws_lock_start)
-	/* lws locks */
-	.rept 16
-	/* Keep locks aligned at 16-bytes */
-	.word 1
-	.word 0 
-	.word 0
-	.word 0
-	.endr
-END(lws_lock_start)
-	.previous
-#endif
-/* CONFIG_SMP for lws_lock_start */
-
 .end
 
 
diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c
index 353963d..bae6a86 100644
--- a/arch/parisc/lib/bitops.c
+++ b/arch/parisc/lib/bitops.c
@@ -15,6 +15,9 @@
 arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
 	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
 };
+arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
+	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
+};
 #endif
 
 #ifdef CONFIG_64BIT
diff --git a/kernel/fork.c b/kernel/fork.c
index f88bd98..108b1ed 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -608,7 +608,10 @@ void mm_release(struct task_struct *tsk, struct mm_struct *mm)
 			 * We don't check the error code - if userspace has
 			 * not set up a proper pointer then tough luck.
 			 */
+			unsigned long flags;
+			_atomic_spin_lock_irqsave_user(tsk->clear_child_tid, flags);
 			put_user(0, tsk->clear_child_tid);
+			_atomic_spin_unlock_irqrestore_user(tsk->clear_child_tid, flags);
 			sys_futex(tsk->clear_child_tid, FUTEX_WAKE,
 					1, NULL, NULL, 0);
 		}
@@ -1432,8 +1435,12 @@ long do_fork(unsigned long clone_flags,
 
 		nr = task_pid_vnr(p);
 
-		if (clone_flags & CLONE_PARENT_SETTID)
+		if (clone_flags & CLONE_PARENT_SETTID) {
+			unsigned long flags;
+			_atomic_spin_lock_irqsave_user(parent_tidptr, flags);
 			put_user(nr, parent_tidptr);
+			_atomic_spin_unlock_irqrestore_user(parent_tidptr, flags);
+		}
 
 		if (clone_flags & CLONE_VFORK) {
 			p->vfork_done = &vfork;

--------------010104090504020303010203--
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From - Thu Nov 08 21:05:37 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: futex wait failure
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On Tue, Feb 2, 2010 at 4:16 PM, Helge Deller <deller@gmx.de> wrote:
> Furthermore, the coding for futex_atomic_op_inuser() in
> arch/parisc/include/asm/futex.h seems to miss real functionality.
> I didn't looked closer into this though.

I have a fix for futex_atomic_op_inuser(), but it needs more testing.

Cheers,
Carlos.
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Subject: [PATCHv3 0/5] fix xfs by making I/O to vmap/vmalloc areas work
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From: James Bottomley <James.Bottomley@HansenPartnership.com>

This is essentially a small tidy up from the previous series.  I
thought about the Ben H additions, but since power doesn't seem to
need this, they seemed a bit moot (we can expand the API when an
actual user comes along).

The patch series adds a flush/invalidate_kernel_vmap_range() API that
drivers using vmap/vmalloc areas must use before sending tohse areas
for I/O.  This makes it crystal clear that coherence on these areas is
the responsibility of the driver alone.  Fortunately xfs is the only
thing in the kernel actually doing I/O to vmap areas.

Sin ce xfs is completely broken on most VIPT architectures without
this, I'd like to submit it as a bug fix for 2.6.33.  Unfortunately,
we actually have some parisc xfs users whose data is curently at
severe risk.

James

---

James Bottomley (5):
  mm: add coherence API for DMA to vmalloc/vmap areas
  parisc: add mm API for DMA to vmalloc/vmap areas
  arm: add mm API for DMA to vmalloc/vmap areas
  sh: add mm API for DMA to vmalloc/vmap areas
  xfs: fix xfs to work with Virtually Indexed architectures

 Documentation/cachetlb.txt           |   24 ++++++++++++++++++++++++
 arch/arm/include/asm/cacheflush.h    |   10 ++++++++++
 arch/parisc/include/asm/cacheflush.h |   12 ++++++++++++
 arch/sh/include/asm/cacheflush.h     |    8 ++++++++
 fs/xfs/linux-2.6/xfs_buf.c           |   30 +++++++++++++++++++++++++++++-
 include/linux/highmem.h              |    6 ++++++
 6 files changed, 89 insertions(+), 1 deletions(-)


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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCHv3 1/5] mm: add coherence API for DMA to vmalloc/vmap areas
Date: Fri,  5 Feb 2010 09:50:53 -0600
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	James Bottomley <James.Bottomley@suse.de>
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On Virtually Indexed architectures (which don't do automatic alias
resolution in their caches), we have to flush via the correct
virtual address to prepare pages for DMA.  On some architectures
(like arm) we cannot prevent the CPU from doing data movein along
the alias (and thus giving stale read data), so we not only have to
introduce a flush API to push dirty cache lines out, but also an invalidate
API to kill inconsistent cache lines that may have moved in before
DMA changed the data

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 Documentation/cachetlb.txt |   24 ++++++++++++++++++++++++
 include/linux/highmem.h    |    6 ++++++
 2 files changed, 30 insertions(+), 0 deletions(-)

diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt
index da42ab4..b231414 100644
--- a/Documentation/cachetlb.txt
+++ b/Documentation/cachetlb.txt
@@ -377,3 +377,27 @@ maps this page at its virtual address.
 	All the functionality of flush_icache_page can be implemented in
 	flush_dcache_page and update_mmu_cache. In 2.7 the hope is to
 	remove this interface completely.
+
+The final category of APIs is for I/O to deliberately aliased address
+ranges inside the kernel.  Such aliases are set up by use of the
+vmap/vmalloc API.  Since kernel I/O goes via physical pages, the I/O
+subsystem assumes that the user mapping and kernel offset mapping are
+the only aliases.  This isn't true for vmap aliases, so anything in
+the kernel trying to do I/O to vmap areas must manually manage
+coherency.  It must do this by flushing the vmap range before doing
+I/O and invalidating it after the I/O returns.
+
+  void flush_kernel_vmap_range(void *vaddr, int size)
+       flushes the kernel cache for a given virtual address range in
+       the vmap area.  This is to make sure that any data the kernel
+       modified in the vmap range is made visible to the physical
+       page.  The design is to make this area safe to perform I/O on.
+       Note that this API does *not* also flush the offset map alias
+       of the area.
+
+  void invalidate_kernel_vmap_range(void *vaddr, int size) invalidates
+       the cache for a given virtual address range in the vmap area
+       which prevents the processor from making the cache stale by
+       speculatively reading data while the I/O was occurring to the
+       physical pages.  This is only necessary for data reads into the
+       vmap area.
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 211ff44..adfe101 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -17,6 +17,12 @@ static inline void flush_anon_page(struct vm_area_struct *vma, struct page *page
 static inline void flush_kernel_dcache_page(struct page *page)
 {
 }
+static inline void flush_kernel_vmap_range(void *vaddr, int size)
+{
+}
+static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
+{
+}
 #endif
 
 #include <asm/kmap_types.h>
-- 
1.6.5


From - Thu Nov 08 21:05:37 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: [PATCHv3 3/5] arm: add mm API for DMA to vmalloc/vmap areas
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	James Bottomley <James.Bottomley@suse.de>
To: linux-arch@vger.kernel.org
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ARM cannot prevent cache movein, so this patch implements both the
flush and invalidate pieces of the API.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/arm/include/asm/cacheflush.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 730aefc..4ae503c 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -432,6 +432,16 @@ static inline void __flush_icache_all(void)
 	    : "r" (0));
 #endif
 }
+static inline void flush_kernel_vmap_range(void *addr, int size)
+{
+	if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+	  __cpuc_flush_dcache_area(addr, (size_t)size);
+}
+static inline void invalidate_kernel_vmap_range(void *addr, int size)
+{
+	if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+	  __cpuc_flush_dcache_area(addr, (size_t)size);
+}
 
 #define ARCH_HAS_FLUSH_ANON_PAGE
 static inline void flush_anon_page(struct vm_area_struct *vma,
-- 
1.6.5

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From - Thu Nov 08 21:05:38 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: [PATCHv3 2/5] parisc: add mm API for DMA to vmalloc/vmap areas
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We already have an API to flush a kernel page along an alias
address, so use it.  The TLB purge prevents the CPU from doing
speculative moveins on the flushed address, so we don't need to
implement and invalidate.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/parisc/include/asm/cacheflush.h |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7a73b61..4772777 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -38,6 +38,18 @@ void flush_cache_mm(struct mm_struct *mm);
 
 #define flush_kernel_dcache_range(start,size) \
 	flush_kernel_dcache_range_asm((start), (start)+(size));
+/* vmap range flushes and invalidates.  Architecturally, we don't need
+ * the invalidate, because the CPU should refuse to speculate once an
+ * area has been flushed, so invalidate is left empty */
+static inline void flush_kernel_vmap_range(void *vaddr, int size)
+{
+	unsigned long start = (unsigned long)vaddr;
+
+	flush_kernel_dcache_range_asm(start, start + size);
+}
+static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
+{
+}
 
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
-- 
1.6.5

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From - Thu Nov 08 21:05:38 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: [PATCHv3 4/5] sh: add mm API for DMA to vmalloc/vmap areas
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Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 arch/sh/include/asm/cacheflush.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index dda96eb..da3ebec 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -63,6 +63,14 @@ static inline void flush_anon_page(struct vm_area_struct *vma,
 	if (boot_cpu_data.dcache.n_aliases && PageAnon(page))
 		__flush_anon_page(page, vmaddr);
 }
+static inline void flush_kernel_vmap_range(void *addr, int size)
+{
+	__flush_wback_region(addr, size);
+}
+static inline void invalidate_kernel_vmap_range(void *addr, int size)
+{
+	__flush_invalidate_region(addr, size);
+}
 
 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
 static inline void flush_kernel_dcache_page(struct page *page)
-- 
1.6.5

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From - Thu Nov 08 21:05:38 2018
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCHv3 5/5] xfs: fix xfs to work with Virtually Indexed architectures
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xfs_buf.c includes what is essentially a hand rolled version of
blk_rq_map_kern().  In order to work properly with the vmalloc buffers
that xfs uses, this hand rolled routine must also implement the flushing
API for vmap/vmalloc areas.

[style updates from hch@lst.de]
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 fs/xfs/linux-2.6/xfs_buf.c |   30 +++++++++++++++++++++++++++++-
 1 files changed, 29 insertions(+), 1 deletions(-)

diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 77b8be8..6f3ebb6 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -76,6 +76,27 @@ struct workqueue_struct *xfsconvertd_workqueue;
 #define xfs_buf_deallocate(bp) \
 	kmem_zone_free(xfs_buf_zone, (bp));
 
+static inline int
+xfs_buf_is_vmapped(
+	struct xfs_buf	*bp)
+{
+	/*
+	 * Return true if the buffer is vmapped.
+	 *
+	 * The XBF_MAPPED flag is set if the buffer should be mapped, but the
+	 * code is clever enough to know it doesn't have to map a single page,
+	 * so the check has to be both for XBF_MAPPED and bp->b_page_count > 1.
+	 */
+	return (bp->b_flags & XBF_MAPPED) && bp->b_page_count > 1;
+}
+
+static inline int
+xfs_buf_vmap_len(
+	struct xfs_buf	*bp)
+{
+	return (bp->b_page_count * PAGE_SIZE) - bp->b_offset;
+}
+
 /*
  *	Page Region interfaces.
  *
@@ -314,7 +335,7 @@ xfs_buf_free(
 	if (bp->b_flags & (_XBF_PAGE_CACHE|_XBF_PAGES)) {
 		uint		i;
 
-		if ((bp->b_flags & XBF_MAPPED) && (bp->b_page_count > 1))
+		if (xfs_buf_is_vmapped(bp))
 			free_address(bp->b_addr - bp->b_offset);
 
 		for (i = 0; i < bp->b_page_count; i++) {
@@ -1107,6 +1128,9 @@ xfs_buf_bio_end_io(
 
 	xfs_buf_ioerror(bp, -error);
 
+	if (!error && xfs_buf_is_vmapped(bp) && (bp->b_flags & XBF_READ))
+		invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp));
+
 	do {
 		struct page	*page = bvec->bv_page;
 
@@ -1216,6 +1240,10 @@ next_chunk:
 
 submit_io:
 	if (likely(bio->bi_size)) {
+		if (xfs_buf_is_vmapped(bp)) {
+			flush_kernel_vmap_range(bp->b_addr,
+						xfs_buf_vmap_len(bp));
+		}
 		submit_bio(rw, bio);
 		if (size)
 			goto next_chunk;
-- 
1.6.5


From - Thu Nov 08 21:05:38 2018
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Subject: Re: [PATCHv3 0/5] fix xfs by making I/O to vmap/vmalloc areas work
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	rmk@arm.linux.org.uk, lethal@linux-sh.org,
	torvalds@linux-foundation.org, hch@lst.de,
	James Bottomley <James.Bottomley@HansenPartnership.com>
To: James Bottomley <James.Bottomley@suse.de>
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On Fri, Feb 05, 2010 at 09:50:52AM -0600, James Bottomley wrote:
> From: James Bottomley <James.Bottomley@HansenPartnership.com>
> 
> This is essentially a small tidy up from the previous series.  I
> thought about the Ben H additions, but since power doesn't seem to
> need this, they seemed a bit moot (we can expand the API when an
> actual user comes along).
> 
> The patch series adds a flush/invalidate_kernel_vmap_range() API that
> drivers using vmap/vmalloc areas must use before sending tohse areas
> for I/O.  This makes it crystal clear that coherence on these areas is
> the responsibility of the driver alone.  Fortunately xfs is the only
> thing in the kernel actually doing I/O to vmap areas.
> 
> Sin ce xfs is completely broken on most VIPT architectures without
> this, I'd like to submit it as a bug fix for 2.6.33.  Unfortunately,
> we actually have some parisc xfs users whose data is curently at
> severe risk.

Agreed.  There's also a lot of ARM users popping up with this recently,
while others worked around it using local flushing hacks previously.


From - Thu Nov 08 21:05:38 2018
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X-Mozilla-Keys:                                                                                 
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From: Frans Pop <elendil@planet.nl>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.uclinux.microblaze,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.uml.devel
Subject: [PATCH 00/16] remove trailing spaces in messages
Date: Sat, 6 Feb 2010 18:44:36 +0100
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Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        "David S. Miller" <davem@davemloft.net>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Helge Deller <deller@gmx.de>, Ingo Molnar <mingo@elte.hu>,
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To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2627>

This is a first series of patches to remove trailing spaces in messages. 
Patches cover arch-specific code plus one fix for PM and one in 
Documentation. Depending on how this series is received I'll continue
with other parts of the kernel.

Benefits are:
- general cleanup and consistency
- minor reduction in kernel size and user's log file size
- reduced annoyance for people writing logcheck rules

The patch for m68k has been rebased against linux-next; all other
patches apply against both mainline and -next (as of 5-2).

Shortstat:
 74 files changed, 135 insertions(+), 136 deletions(-)

Frans Pop (16):
      alpha: remove trailing spaces in messages
      arm: remove trailing spaces in messages
      ia64: remove trailing space in messages
      m68k: remove trailing space in messages
      microblaze: remove trailing space in messages
      mips: remove trailing space in messages
      parisc: remove trailing space in messages
      s390: remove trailing space in messages
      sparc: remove trailing space in messages
      x86: remove trailing space in messages
      blackfin: remove trailing space in messages
      cris/trivial: remove trailing space in message
      powerpc: remove trailing space in messages
      um: remove trailing space in messages
      PM: remove trailing space in message
      trivial: remove trailing space in spidev test program



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From: Frans Pop <elendil@planet.nl>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 07/16] parisc: remove trailing space in messages
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Signed-off-by: Frans Pop <elendil@planet.nl>
Cc: linux-parisc@vger.kernel.org
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
---
 arch/parisc/kernel/cache.c       |    4 ++--
 drivers/parisc/eisa_enumerator.c |    2 +-
 drivers/parisc/superio.c         |    2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index b6ed34d..fc6c8cb 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -171,14 +171,14 @@ parisc_cache_init(void)
 		cache_info.ic_conf.cc_cst,
 		cache_info.ic_conf.cc_hv);
 
-	printk("D-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
+	printk("D-TLB conf: sh %d page %d cst %d aid %d pad1 %d\n",
 		cache_info.dt_conf.tc_sh,
 		cache_info.dt_conf.tc_page,
 		cache_info.dt_conf.tc_cst,
 		cache_info.dt_conf.tc_aid,
 		cache_info.dt_conf.tc_pad1);
 
-	printk("I-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
+	printk("I-TLB conf: sh %d page %d cst %d aid %d pad1 %d\n",
 		cache_info.it_conf.tc_sh,
 		cache_info.it_conf.tc_page,
 		cache_info.it_conf.tc_cst,
diff --git a/drivers/parisc/eisa_enumerator.c b/drivers/parisc/eisa_enumerator.c
index 0be1d50..caa1531 100644
--- a/drivers/parisc/eisa_enumerator.c
+++ b/drivers/parisc/eisa_enumerator.c
@@ -460,7 +460,7 @@ static int init_slot(int slot, struct eeprom_eisa_slot_info *es)
 			       slot, id_string);
 			
 			print_eisa_id(id_string, es->eisa_slot_id);
-			printk(" expected %s \n", id_string);
+			printk(" expected %s\n", id_string);
 		
 			return -1;	
 			
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index a35c9c5..f7806d8 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -169,7 +169,7 @@ superio_init(struct pci_dev *pcidev)
 	/* ...then properly fixup the USB to point at suckyio PIC */
 	sio->usb_pdev->irq = superio_fixup_irq(sio->usb_pdev);
 
-	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i) \n",
+	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
 	       pci_name(pdev), pdev->irq);
 
 	pci_read_config_dword (pdev, SIO_SP1BAR, &sio->sp1_base);
-- 
1.6.6.1


From - Thu Nov 08 21:05:38 2018
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Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.sparc
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Resending the patch cover letter for vger only as it didn't reach there for 
some reason (# recipients maybe?).

+++++++++++
This is a first series of patches to remove trailing spaces in messages. 
Patches cover arch-specific code plus one fix for PM and one in 
Documentation. Depending on how this series is received I'll continue
with other parts of the kernel.

Benefits are:
- general cleanup and consistency
- minor reduction in kernel size and user's log file size
- reduced annoyance for people writing logcheck rules

The patch for m68k has been rebased against linux-next; all other
patches apply against both mainline and -next (as of 5-2).

Shortstat:
 74 files changed, 135 insertions(+), 136 deletions(-)

Frans Pop (16):
      alpha: remove trailing spaces in messages
      arm: remove trailing spaces in messages
      ia64: remove trailing space in messages
      m68k: remove trailing space in messages
      microblaze: remove trailing space in messages
      mips: remove trailing space in messages
      parisc: remove trailing space in messages
      s390: remove trailing space in messages
      sparc: remove trailing space in messages
      x86: remove trailing space in messages
      blackfin: remove trailing space in messages
      cris/trivial: remove trailing space in message
      powerpc: remove trailing space in messages
      um: remove trailing space in messages
      PM: remove trailing space in message
      trivial: remove trailing space in spidev test program
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From - Thu Nov 08 21:05:38 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH 07/16] parisc: remove trailing space in messages
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To: Frans Pop <elendil@planet.nl>
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On Sat, Feb 06, 2010 at 06:47:14PM +0100, Frans Pop wrote:
> Signed-off-by: Frans Pop <elendil@planet.nl>
> Cc: linux-parisc@vger.kernel.org
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: Helge Deller <deller@gmx.de>

I'll apply this.

Thanks Frans.

regards, Kyle
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Subject: Re: can't find a register in class 'R1_REGS' while reloading 'asm'
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To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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On Mon, Dec 07, 2009 at 10:01:14PM -0500, John David Anglin wrote:
> -	volatile unsigned int *a;
> +	volatile register unsigned int *a asm ("r20") = __ldcw_align(x);
>  

I'm reticent about moving the assignment around the mb(), should I edit
this to return the assignment and apply, or apply as is?

regards, Kyle
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Subject: [git] parisc: Changes to ref refs/heads/next2
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New commits:
commit 2bf59ba67ddef9c1e9e87aa3fedcf6ceac8248f2
Author: john stultz <johnstul@us.ibm.com>
Date:   Wed Dec 23 04:14:03 2009 +0000

    parisc: Convert to read/update_persistent_clock
    
    This patch converts the parisc architecture to use the generic
    read_persistent_clock and update_persistent_clock interfaces, reducing
    the amount of arch specific code we have to maintain, and allowing for
    further cleanups in the future.
    
    I have not built or tested this patch, so help from arch maintainers
    would be appreciated.
    
    Signed-off-by: John Stultz <johnstul@us.ibm.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit c08051ba9604b1a1d54644bc7f9feb8911fd226e
Author: James Bottomley <James.Bottomley@suse.de>
Date:   Fri Feb 5 15:50:57 2010 +0000

    xfs: fix xfs to work with Virtually Indexed architectures
    
    xfs_buf.c includes what is essentially a hand rolled version of
    blk_rq_map_kern().  In order to work properly with the vmalloc buffers
    that xfs uses, this hand rolled routine must also implement the flushing
    API for vmap/vmalloc areas.
    
    [style updates from hch@lst.de]
    Signed-off-by: James Bottomley <James.Bottomley@suse.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 5d5a78f63b99ad8e9ef0215593998ed8e6e4dd6c
Author: James Bottomley <James.Bottomley@suse.de>
Date:   Fri Feb 5 15:50:56 2010 +0000

    sh: add mm API for DMA to vmalloc/vmap areas
    
    Signed-off-by: James Bottomley <James.Bottomley@suse.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 12805df7794465ca243da0d4bf94358d292527a3
Author: James Bottomley <James.Bottomley@suse.de>
Date:   Fri Feb 5 15:50:55 2010 +0000

    arm: add mm API for DMA to vmalloc/vmap areas
    
    ARM cannot prevent cache movein, so this patch implements both the
    flush and invalidate pieces of the API.
    
    Signed-off-by: James Bottomley <James.Bottomley@suse.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit a2030dc9b328f4fa968677a3e5797f8dd35b7b31
Author: James Bottomley <James.Bottomley@suse.de>
Date:   Fri Feb 5 15:50:54 2010 +0000

    parisc: add mm API for DMA to vmalloc/vmap areas
    
    We already have an API to flush a kernel page along an alias
    address, so use it.  The TLB purge prevents the CPU from doing
    speculative moveins on the flushed address, so we don't need to
    implement and invalidate.
    
    Signed-off-by: James Bottomley <James.Bottomley@suse.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 874f257d4af720867cba996dafeead114e37ebbe
Author: James Bottomley <James.Bottomley@suse.de>
Date:   Fri Feb 5 15:50:53 2010 +0000

    mm: add coherence API for DMA to vmalloc/vmap areas
    
    On Virtually Indexed architectures (which don't do automatic alias
    resolution in their caches), we have to flush via the correct
    virtual address to prepare pages for DMA.  On some architectures
    (like arm) we cannot prevent the CPU from doing data movein along
    the alias (and thus giving stale read data), so we not only have to
    introduce a flush API to push dirty cache lines out, but also an invalidate
    API to kill inconsistent cache lines that may have moved in before
    DMA changed the data
    
    Signed-off-by: James Bottomley <James.Bottomley@suse.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 6f137c5a33a8a25e235d1f0f614c3f3b2d83e2c8
Author: Robert P. J. Day <rpjday@crashcourse.ca>
Date:   Thu Dec 31 20:43:55 2009 +0000

    parisc: Simplify param.h by including <asm-generic/param.h>
    
    Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 59ff3c2f58932717031f0e42041eab294d1c2583
Author: Helge Deller <deller@gmx.de>
Date:   Tue Feb 2 19:06:23 2010 +0000

    parisc: drop unnecessary cast in __ldcw_align() macro
    
    __ldcw_align() can directly access the slock member of struct arch_spinlock_t
    instead of using an ugly cast.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 081e56c8424d51663ed29e69c7d3393228c90764
Author: Helge Deller <deller@gmx.de>
Date:   Mon Feb 1 19:56:33 2010 +0000

    parisc: add strict copy size checks (v2)
    
    Add CONFIG_DEBUG_STRICT_USER_COPY_CHECKS, copied from the x86
    implementation. Tested with 32 and 64bit kernel.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 06ba2126d13589c5b4b7672abb9c74198dd84957
Author: Frans Pop <elendil@planet.nl>
Date:   Sat Feb 6 17:47:14 2010 +0000

    parisc: remove trailing space in messages
    
    Signed-off-by: Frans Pop <elendil@planet.nl>
    Cc: linux-parisc@vger.kernel.org
    Cc: Kyle McMartin <kyle@mcmartin.ca>
    Cc: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 19a8f5f7e1a516ff0ac5940e211165520d7caea1
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Sat Dec 26 17:19:17 2009 +0000

    parisc: ditto sys_accept4
    
    tested with test_accept4.c from de11defebf00007677fb7ee91d9b089b78786fbb
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 53fc237b2a735e99acd043e9aabd7d9423164fdf
Author: Helge Deller <deller@gmx.de>
Date:   Tue Dec 22 22:50:33 2009 +0000

    parisc: wire up sys_recvmmsg
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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From - Thu Nov 08 21:05:38 2018
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Subject: Re: [PATCHv3 0/5] fix xfs by making I/O to vmap/vmalloc areas work
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	rmk@arm.linux.org.uk, lethal@linux-sh.org,
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On Fri, Feb 05, 2010 at 05:06:40PM +0100, Christoph Hellwig wrote:
> > From: James Bottomley <James.Bottomley@HansenPartnership.com>
> > 
> 
> Agreed.  There's also a lot of ARM users popping up with this recently,
> while others worked around it using local flushing hacks previously.
> 

Thanks, I've applied these to parisc/next to give them a shakedown in
linux-next.

regards, Kyle.
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> On Mon, Dec 07, 2009 at 10:01:14PM -0500, John David Anglin wrote:
> > -	volatile unsigned int *a;
> > +	volatile register unsigned int *a asm ("r20") = __ldcw_align(x);
> >  
> 
> I'm reticent about moving the assignment around the mb(), should I edit
> this to return the assignment and apply, or apply as is?

I don't believe the __ldcw_align operation involves a memory read or
write.  It's just adjusting a pointer.  Thus moving it past the mb()
shouldn't matter.  That said, I been wrong before...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Feb 08, 2010 at 03:03:21PM +0100, Witold Rohm wrote:
> Dear Grant, 
> I'm presently trying to run debian 5.0 on B2000 Visualize FX
> Hp station - everything goes fine until the X server is starting
> - according to hp pa risc forum - it's not possible to get X window
> running on the FX card, and it's true. 
> So i was trying to mount  PCI card I' ve tried the S3, Matrox II,
> cards and none of them works - even if I change the path console
> to PCI3. I checked the service Chasis codes and it states that:
> "error executing ENTRY INIT" 
> Could you give me any advice or help?

Hi Witold,
Please CC linux-parisc mailing list for help. Folks there know more than I do.

What I do know is normal PCI cards do NOT have the firmware support (aka IODC)
to function as console for PA-RISC. What does work is using a serial console
to setup the machine so X11 can talk to a Matrox card. I'm not sure which
one but I'm pretty sure someone had this working before.

BTW, you've read the parisc graphics-howto?
   http://www.parisc-linux.org/faq/graphics-howto.html

hth,
grant

> Best regards
> Witold Rohm 
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Subject: Re: [PATCH] Restrict initial stack space expansion to rlimit
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On Tue, 09 Feb 2010 19:59:27 +1100
Michael Neuling <mikey@neuling.org> wrote:

> > > +	/* Initial stack must not cause stack overflow. */
> > > +	if (stack_expand > stack_expand_lim)
> > > +		stack_expand = stack_expand_lim;
> > >  #ifdef CONFIG_STACK_GROWSUP
> > > -	stack_base = vma->vm_end + EXTRA_STACK_VM_PAGES * PAGE_SIZE;
> > > +	stack_base = vma->vm_end + stack_expand;
> > >  #else
> > > -	stack_base = vma->vm_start - EXTRA_STACK_VM_PAGES * PAGE_SIZE;
> > > +	stack_base = vma->vm_start - stack_expand;
> > >  #endif
> > >  	ret = expand_stack(vma, stack_base);
> > >  	if (ret)
> > 
> > Umm.. It looks correct. but the nested complex if statement seems a bit ugly.
> > Instead, How about following?
> 
> I don't like the duplicated code in the #ifdef/else but I can live with it.

cleanup the cleanup:

--- a/fs/exec.c~fs-execc-restrict-initial-stack-space-expansion-to-rlimit-cleanup-cleanup
+++ a/fs/exec.c
@@ -637,20 +637,17 @@ int setup_arg_pages(struct linux_binprm 
 	 * will align it up.
 	 */
 	rlim_stack = rlimit(RLIMIT_STACK) & PAGE_MASK;
-	if (rlim_stack < stack_size)
-		rlim_stack = stack_size;
+	rlim_stack = min(rlim_stack, stack_size);
 #ifdef CONFIG_STACK_GROWSUP
-	if (stack_size + stack_expand > rlim_stack) {
+	if (stack_size + stack_expand > rlim_stack)
 		stack_base = vma->vm_start + rlim_stack;
-	} else {
+	else
 		stack_base = vma->vm_end + stack_expand;
-	}
 #else
-	if (stack_size + stack_expand > rlim_stack) {
+	if (stack_size + stack_expand > rlim_stack)
 		stack_base = vma->vm_end - rlim_stack;
-	} else {
+	else
 		stack_base = vma->vm_start - stack_expand;
-	}
 #endif
 	ret = expand_stack(vma, stack_base);
 	if (ret)
_

> > note: it's untested.
> 
> Works for me on ppc64 with 4k and 64k pages.  Thanks!
> 
> I'd still like someone with a CONFIG_STACK_GROWSUP arch to test/ACK it
> as well.

There's only one CONFIG_GROWSUP arch - parisc.

Guys, here's the rolled-up patch.  Could someone please test it on
parisc?

err, I'm not sure what one needs to do to test it, actually. 
Presumably it involves setting an unusual `ulimit -s'.  Can someone
please suggest a test plan?




From: Michael Neuling <mikey@neuling.org>

When reserving stack space for a new process, make sure we're not
attempting to expand the stack by more than rlimit allows.

This fixes a bug caused by b6a2fea39318e43fee84fa7b0b90d68bed92d2ba ("mm:
variable length argument support") and unmasked by
fc63cf237078c86214abcb2ee9926d8ad289da9b ("exec: setup_arg_pages() fails
to return errors").

This bug means that when limiting the stack to less the 20*PAGE_SIZE (eg. 
80K on 4K pages or 'ulimit -s 79') all processes will be killed before
they start.  This is particularly bad with 64K pages, where a ulimit below
1280K will kill every process.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Americo Wang <xiyou.wangcong@gmail.com>
Cc: Anton Blanchard <anton@samba.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: James Morris <jmorris@namei.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Serge Hallyn <serue@us.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: <stable@kernel.org>

 fs/exec.c |   21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff -puN fs/exec.c~fs-execc-restrict-initial-stack-space-expansion-to-rlimit fs/exec.c
--- a/fs/exec.c~fs-execc-restrict-initial-stack-space-expansion-to-rlimit
+++ a/fs/exec.c
@@ -571,6 +571,9 @@ int setup_arg_pages(struct linux_binprm 
 	struct vm_area_struct *prev = NULL;
 	unsigned long vm_flags;
 	unsigned long stack_base;
+	unsigned long stack_size;
+	unsigned long stack_expand;
+	unsigned long rlim_stack;
 
 #ifdef CONFIG_STACK_GROWSUP
 	/* Limit stack size to 1GB */
@@ -627,10 +630,24 @@ int setup_arg_pages(struct linux_binprm 
 			goto out_unlock;
 	}
 
+	stack_expand = EXTRA_STACK_VM_PAGES * PAGE_SIZE;
+	stack_size = vma->vm_end - vma->vm_start;
+	/*
+	 * Align this down to a page boundary as expand_stack
+	 * will align it up.
+	 */
+	rlim_stack = rlimit(RLIMIT_STACK) & PAGE_MASK;
+	rlim_stack = min(rlim_stack, stack_size);
 #ifdef CONFIG_STACK_GROWSUP
-	stack_base = vma->vm_end + EXTRA_STACK_VM_PAGES * PAGE_SIZE;
+	if (stack_size + stack_expand > rlim_stack)
+		stack_base = vma->vm_start + rlim_stack;
+	else
+		stack_base = vma->vm_end + stack_expand;
 #else
-	stack_base = vma->vm_start - EXTRA_STACK_VM_PAGES * PAGE_SIZE;
+	if (stack_size + stack_expand > rlim_stack)
+		stack_base = vma->vm_end - rlim_stack;
+	else
+		stack_base = vma->vm_start - stack_expand;
 #endif
 	ret = expand_stack(vma, stack_base);
 	if (ret)
_

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Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
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	Anton Blanchard <anton@samba.org>,
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To: Andrew Morton <akpm@linux-foundation.org>
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> > > note: it's untested.
> > 
> > Works for me on ppc64 with 4k and 64k pages.  Thanks!
> > 
> > I'd still like someone with a CONFIG_STACK_GROWSUP arch to test/ACK it
> > as well.
> 
> There's only one CONFIG_GROWSUP arch - parisc.
> 
> Guys, here's the rolled-up patch.  

FYI the rolled up patch still works fine on PPC64.  Thanks.  

> Could someone please test it on parisc?
> 
> err, I'm not sure what one needs to do to test it, actually. 
> Presumably it involves setting an unusual `ulimit -s'.  Can someone
> please suggest a test plan?

How about doing:
  'ulimit -s 15; ls'
before and after the patch is applied.  Before it's applied, 'ls' should
be killed.  After the patch is applied, 'ls' should no longer be killed.

I'm suggesting a stack limit of 15KB since it's small enough to trigger
20*PAGE_SIZE.  Also 15KB not a multiple of PAGE_SIZE, which is a trickier
case to handle correctly with this code.

4K pages on parisc should be fine to test with.

Mikey

> 
> From: Michael Neuling <mikey@neuling.org>
> 
> When reserving stack space for a new process, make sure we're not
> attempting to expand the stack by more than rlimit allows.
> 
> This fixes a bug caused by b6a2fea39318e43fee84fa7b0b90d68bed92d2ba ("mm:
> variable length argument support") and unmasked by
> fc63cf237078c86214abcb2ee9926d8ad289da9b ("exec: setup_arg_pages() fails
> to return errors").
> 
> This bug means that when limiting the stack to less the 20*PAGE_SIZE (eg. 
> 80K on 4K pages or 'ulimit -s 79') all processes will be killed before
> they start.  This is particularly bad with 64K pages, where a ulimit below
> 1280K will kill every process.
> 
> Signed-off-by: Michael Neuling <mikey@neuling.org>
> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
> Cc: Americo Wang <xiyou.wangcong@gmail.com>
> Cc: Anton Blanchard <anton@samba.org>
> Cc: Oleg Nesterov <oleg@redhat.com>
> Cc: James Morris <jmorris@namei.org>
> Cc: Ingo Molnar <mingo@elte.hu>
> Cc: Serge Hallyn <serue@us.ibm.com>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: <stable@kernel.org>
> 
>  fs/exec.c |   21 +++++++++++++++++++--
>  1 file changed, 19 insertions(+), 2 deletions(-)
> 
> diff -puN fs/exec.c~fs-execc-restrict-initial-stack-space-expansion-to-rlimit
 fs/exec.c
> --- a/fs/exec.c~fs-execc-restrict-initial-stack-space-expansion-to-rlimit
> +++ a/fs/exec.c
> @@ -571,6 +571,9 @@ int setup_arg_pages(struct linux_binprm 
>  	struct vm_area_struct *prev = NULL;
>  	unsigned long vm_flags;
>  	unsigned long stack_base;
> +	unsigned long stack_size;
> +	unsigned long stack_expand;
> +	unsigned long rlim_stack;
>  
>  #ifdef CONFIG_STACK_GROWSUP
>  	/* Limit stack size to 1GB */
> @@ -627,10 +630,24 @@ int setup_arg_pages(struct linux_binprm 
>  			goto out_unlock;
>  	}
>  
> +	stack_expand = EXTRA_STACK_VM_PAGES * PAGE_SIZE;
> +	stack_size = vma->vm_end - vma->vm_start;
> +	/*
> +	 * Align this down to a page boundary as expand_stack
> +	 * will align it up.
> +	 */
> +	rlim_stack = rlimit(RLIMIT_STACK) & PAGE_MASK;
> +	rlim_stack = min(rlim_stack, stack_size);
>  #ifdef CONFIG_STACK_GROWSUP
> -	stack_base = vma->vm_end + EXTRA_STACK_VM_PAGES * PAGE_SIZE;
> +	if (stack_size + stack_expand > rlim_stack)
> +		stack_base = vma->vm_start + rlim_stack;
> +	else
> +		stack_base = vma->vm_end + stack_expand;
>  #else
> -	stack_base = vma->vm_start - EXTRA_STACK_VM_PAGES * PAGE_SIZE;
> +	if (stack_size + stack_expand > rlim_stack)
> +		stack_base = vma->vm_end - rlim_stack;
> +	else
> +		stack_base = vma->vm_start - stack_expand;
>  #endif
>  	ret = expand_stack(vma, stack_base);
>  	if (ret)
> _
> 
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.file-systems,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc
Subject: Re: [PATCH] Restrict initial stack space expansion to rlimit
Date: Tue, 09 Feb 2010 23:27:08 +0100
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References: <20100208161014.7C6D.A69D9226@jp.fujitsu.com> <1273.1265695885@neuling.org> <20100209154141.03F0.A69D9226@jp.fujitsu.com> <11046.1265705967@neuling.org> <20100209132529.bfc455b7.akpm@linux-foundation.org> <10733.1265752289@neuling.org>
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Cc: Andrew Morton <akpm@linux-foundation.org>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Americo Wang <xiyou.wangcong@gmail.com>,
	Anton Blanchard <anton@samba.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Oleg Nesterov <oleg@redhat.com>,
	James Morris <jmorris@namei.org>, Ingo Molnar <mingo@elte.hu>,
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	Paul Mackerras <paulus@samba.org>, benh@kernel.crashing.org,
	miltonm@bga.com, aeb@cwi.nl, linux-parisc@vger.kernel.org
To: Michael Neuling <mikey@neuling.org>
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On 02/09/2010 10:51 PM, Michael Neuling wrote:
>>> I'd still like someone with a CONFIG_STACK_GROWSUP arch to test/ACK it
>>> as well.
>>
>> There's only one CONFIG_GROWSUP arch - parisc.
>> Could someone please test it on parisc?

I did.

> How about doing:
>    'ulimit -s 15; ls'
> before and after the patch is applied.  Before it's applied, 'ls' should
> be killed.  After the patch is applied, 'ls' should no longer be killed.
>
> I'm suggesting a stack limit of 15KB since it's small enough to trigger
> 20*PAGE_SIZE.  Also 15KB not a multiple of PAGE_SIZE, which is a trickier
> case to handle correctly with this code.
>
> 4K pages on parisc should be fine to test with.

Mikey, thanks for the suggested test plan.

I'm not sure if your patch does it correct for parisc/stack-grows-up-case.

I tested your patch on  a 4k pages kernel:
root@c3000:~# uname -a
Linux c3000 2.6.33-rc7-32bit #221 Tue Feb 9 23:17:06 CET 2010 parisc GNU/Linux

Without your patch:
root@c3000:~# ulimit -s 15; ls
Killed
-> correct.

With your patch:
root@c3000:~# ulimit -s 15; ls
Killed
_or_:
root@c3000:~# ulimit -s 15; ls
Segmentation fault
-> ??

Any idea?

Helge


>> From: Michael Neuling<mikey@neuling.org>
>>
>> When reserving stack space for a new process, make sure we're not
>> attempting to expand the stack by more than rlimit allows.
>>
>> This fixes a bug caused by b6a2fea39318e43fee84fa7b0b90d68bed92d2ba ("mm:
>> variable length argument support") and unmasked by
>> fc63cf237078c86214abcb2ee9926d8ad289da9b ("exec: setup_arg_pages() fails
>> to return errors").
>>
>> This bug means that when limiting the stack to less the 20*PAGE_SIZE (eg.
>> 80K on 4K pages or 'ulimit -s 79') all processes will be killed before
>> they start.  This is particularly bad with 64K pages, where a ulimit below
>> 1280K will kill every process.
>>
>> Signed-off-by: Michael Neuling<mikey@neuling.org>
>> Cc: KOSAKI Motohiro<kosaki.motohiro@jp.fujitsu.com>
>> Cc: Americo Wang<xiyou.wangcong@gmail.com>
>> Cc: Anton Blanchard<anton@samba.org>
>> Cc: Oleg Nesterov<oleg@redhat.com>
>> Cc: James Morris<jmorris@namei.org>
>> Cc: Ingo Molnar<mingo@elte.hu>
>> Cc: Serge Hallyn<serue@us.ibm.com>
>> Cc: Benjamin Herrenschmidt<benh@kernel.crashing.org>
>> Cc:<stable@kernel.org>
>>
>>   fs/exec.c |   21 +++++++++++++++++++--
>>   1 file changed, 19 insertions(+), 2 deletions(-)
>>
>> diff -puN fs/exec.c~fs-execc-restrict-initial-stack-space-expansion-to-rlimit
>   fs/exec.c
>> --- a/fs/exec.c~fs-execc-restrict-initial-stack-space-expansion-to-rlimit
>> +++ a/fs/exec.c
>> @@ -571,6 +571,9 @@ int setup_arg_pages(struct linux_binprm
>>   	struct vm_area_struct *prev = NULL;
>>   	unsigned long vm_flags;
>>   	unsigned long stack_base;
>> +	unsigned long stack_size;
>> +	unsigned long stack_expand;
>> +	unsigned long rlim_stack;
>>
>>   #ifdef CONFIG_STACK_GROWSUP
>>   	/* Limit stack size to 1GB */
>> @@ -627,10 +630,24 @@ int setup_arg_pages(struct linux_binprm
>>   			goto out_unlock;
>>   	}
>>
>> +	stack_expand = EXTRA_STACK_VM_PAGES * PAGE_SIZE;
>> +	stack_size = vma->vm_end - vma->vm_start;
>> +	/*
>> +	 * Align this down to a page boundary as expand_stack
>> +	 * will align it up.
>> +	 */
>> +	rlim_stack = rlimit(RLIMIT_STACK)&  PAGE_MASK;
>> +	rlim_stack = min(rlim_stack, stack_size);
>>   #ifdef CONFIG_STACK_GROWSUP
>> -	stack_base = vma->vm_end + EXTRA_STACK_VM_PAGES * PAGE_SIZE;
>> +	if (stack_size + stack_expand>  rlim_stack)
>> +		stack_base = vma->vm_start + rlim_stack;
>> +	else
>> +		stack_base = vma->vm_end + stack_expand;
>>   #else
>> -	stack_base = vma->vm_start - EXTRA_STACK_VM_PAGES * PAGE_SIZE;
>> +	if (stack_size + stack_expand>  rlim_stack)
>> +		stack_base = vma->vm_end - rlim_stack;
>> +	else
>> +		stack_base = vma->vm_start - stack_expand;
>>   #endif
>>   	ret = expand_stack(vma, stack_base);
>>   	if (ret)

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Cc: Michael Neuling <mikey@neuling.org>, linux-parisc@vger.kernel.org,
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To: Helge Deller <deller@gmx.de>
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> On 02/09/2010 10:51 PM, Michael Neuling wrote:
> >>> I'd still like someone with a CONFIG_STACK_GROWSUP arch to test/ACK it
> >>> as well.
> >>
> >> There's only one CONFIG_GROWSUP arch - parisc.
> >> Could someone please test it on parisc?
> 
> I did.
> 
> > How about doing:
> >    'ulimit -s 15; ls'
> > before and after the patch is applied.  Before it's applied, 'ls' should
> > be killed.  After the patch is applied, 'ls' should no longer be killed.
> >
> > I'm suggesting a stack limit of 15KB since it's small enough to trigger
> > 20*PAGE_SIZE.  Also 15KB not a multiple of PAGE_SIZE, which is a trickier
> > case to handle correctly with this code.
> >
> > 4K pages on parisc should be fine to test with.
> 
> Mikey, thanks for the suggested test plan.
> 
> I'm not sure if your patch does it correct for parisc/stack-grows-up-case.
> 
> I tested your patch on  a 4k pages kernel:
> root@c3000:~# uname -a
> Linux c3000 2.6.33-rc7-32bit #221 Tue Feb 9 23:17:06 CET 2010 parisc GNU/Linux
> 
> Without your patch:
> root@c3000:~# ulimit -s 15; ls
> Killed
> -> correct.
> 
> With your patch:
> root@c3000:~# ulimit -s 15; ls
> Killed
> _or_:
> root@c3000:~# ulimit -s 15; ls
> Segmentation fault
> -> ??
> 
> Any idea?

My x86_64 box also makes segmentation fault. I think "ulimit -s 15" is too small stack for ls.
"ulimit -s 27; ls "  wroks perfectly fine.

From - Thu Nov 08 21:05:39 2018
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Cc: Helge Deller <deller@gmx.de>,
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	Anton Blanchard <anton@samba.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
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	Oleg Nesterov <oleg@redhat.com>,
	James Morris <jmorris@namei.org>, Ingo Molnar <mingo@elte.hu>,
	linux-fsdevel@vger.kernel.org, stable@kernel.org,
	linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
	Serge Hallyn <serue@us.ibm.com>,
	Paul Mackerras <paulus@samba.org>, benh@kernel.crashing.org,
	miltonm@bga.com, aeb@cwi.nl, linux-parisc@vger.kernel.org
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
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   message dated "Wed, 10 Feb 2010 14:12:51 +0900."
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In message <20100210141016.4D18.A69D9226@jp.fujitsu.com> you wrote:
> > On 02/09/2010 10:51 PM, Michael Neuling wrote:
> > >>> I'd still like someone with a CONFIG_STACK_GROWSUP arch to test/ACK it
> > >>> as well.
> > >>
> > >> There's only one CONFIG_GROWSUP arch - parisc.
> > >> Could someone please test it on parisc?
> > 
> > I did.
> > 
> > > How about doing:
> > >    'ulimit -s 15; ls'
> > > before and after the patch is applied.  Before it's applied, 'ls' should
> > > be killed.  After the patch is applied, 'ls' should no longer be killed.
> > >
> > > I'm suggesting a stack limit of 15KB since it's small enough to trigger
> > > 20*PAGE_SIZE.  Also 15KB not a multiple of PAGE_SIZE, which is a trickier
> > > case to handle correctly with this code.
> > >
> > > 4K pages on parisc should be fine to test with.
> > 
> > Mikey, thanks for the suggested test plan.
> > 
> > I'm not sure if your patch does it correct for parisc/stack-grows-up-case.
> > 
> > I tested your patch on  a 4k pages kernel:
> > root@c3000:~# uname -a
> > Linux c3000 2.6.33-rc7-32bit #221 Tue Feb 9 23:17:06 CET 2010 parisc GNU/Li
nux
> > 
> > Without your patch:
> > root@c3000:~# ulimit -s 15; ls
> > Killed
> > -> correct.
> > 
> > With your patch:
> > root@c3000:~# ulimit -s 15; ls
> > Killed
> > _or_:
> > root@c3000:~# ulimit -s 15; ls
> > Segmentation fault
> > -> ??
> > 
> > Any idea?
> 
> My x86_64 box also makes segmentation fault. I think "ulimit -s 15" is too sm
all stack for ls.
> "ulimit -s 27; ls "  wroks perfectly fine.

Arrh.  I asked Helge offline earlier to check what use to work on parisc
on 2.6.31.

I guess PPC has a nice clean non-bloated ABI :-D

Mikey
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Cc: Helge Deller <deller@gmx.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Americo Wang <xiyou.wangcong@gmail.com>,
	Anton Blanchard <anton@samba.org>,
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To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
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In message <20100210141016.4D18.A69D9226@jp.fujitsu.com> you wrote:
> > On 02/09/2010 10:51 PM, Michael Neuling wrote:
> > >>> I'd still like someone with a CONFIG_STACK_GROWSUP arch to test/ACK it
> > >>> as well.
> > >>
> > >> There's only one CONFIG_GROWSUP arch - parisc.
> > >> Could someone please test it on parisc?
> > 
> > I did.
> > 
> > > How about doing:
> > >    'ulimit -s 15; ls'
> > > before and after the patch is applied.  Before it's applied, 'ls' should
> > > be killed.  After the patch is applied, 'ls' should no longer be killed.
> > >
> > > I'm suggesting a stack limit of 15KB since it's small enough to trigger
> > > 20*PAGE_SIZE.  Also 15KB not a multiple of PAGE_SIZE, which is a trickier
> > > case to handle correctly with this code.
> > >
> > > 4K pages on parisc should be fine to test with.
> > 
> > Mikey, thanks for the suggested test plan.
> > 
> > I'm not sure if your patch does it correct for parisc/stack-grows-up-case.
> > 
> > I tested your patch on  a 4k pages kernel:
> > root@c3000:~# uname -a
> > Linux c3000 2.6.33-rc7-32bit #221 Tue Feb 9 23:17:06 CET 2010 parisc GNU/Li
nux
> > 
> > Without your patch:
> > root@c3000:~# ulimit -s 15; ls
> > Killed
> > -> correct.
> > 
> > With your patch:
> > root@c3000:~# ulimit -s 15; ls
> > Killed
> > _or_:
> > root@c3000:~# ulimit -s 15; ls
> > Segmentation fault
> > -> ??
> > 
> > Any idea?
> 
> My x86_64 box also makes segmentation fault. I think "ulimit -s 15" is too sm
all stack for ls.
> "ulimit -s 27; ls "  wroks perfectly fine.

Arrh.  I asked Helge offline earlier to check what use to work on parisc
on 2.6.31.

I guess PPC has a nice clean non-bloated ABI :-D

Mikey
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gentile ...

Ora pu=C3=B2 entrare nel sito e guardare le pagine dei Suoi amici, util=
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maticamente.

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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: Bringing into life HP B2000
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Cc: witold.rohm@igig.up.wroc.pl, linux-parisc@vger.kernel.org
To: grundler@parisc-linux.org (Grant Grundler)
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> On Mon, Feb 08, 2010 at 03:03:21PM +0100, Witold Rohm wrote:
> > Dear Grant, 
> > I'm presently trying to run debian 5.0 on B2000 Visualize FX
> > Hp station - everything goes fine until the X server is starting
> > - according to hp pa risc forum - it's not possible to get X window
> > running on the FX card, and it's true. 
> > So i was trying to mount  PCI card I' ve tried the S3, Matrox II,
> > cards and none of them works - even if I change the path console
> > to PCI3. I checked the service Chasis codes and it states that:
> > "error executing ENTRY INIT" 
> > Could you give me any advice or help?
> 
> Hi Witold,
> Please CC linux-parisc mailing list for help. Folks there know more than I do.
> 
> What I do know is normal PCI cards do NOT have the firmware support (aka IODC)
> to function as console for PA-RISC. What does work is using a serial console
> to setup the machine so X11 can talk to a Matrox card. I'm not sure which
> one but I'm pretty sure someone had this working before.

My c3750 with Vis EG crashes with 2.6.32.7 starting X.  Same config doesn't
crash with 2.6.31.12, but keyboard doesn't work correctly.  It looks like
key releases are not detected.  Keyboard works fine in console mode.
Debian 5.0 was ok for X on this machine.

Sorry for this being slightly off topic, but I think we have some X rot

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Feb 11, 2010 at 12:07 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:

> crash with 2.6.31.12, but keyboard doesn't work correctly. =C2=A0It l=
ooks like
> key releases are not detected. =C2=A0Keyboard works fine in console m=
ode.

That's most likely not hppa specific, I've seen this on some x86
machines as well.

HTH

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [PATCH] Restrict initial stack space expansion to rlimit
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Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Andrew Morton <akpm@linux-foundation.org>,
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To: Michael Neuling <mikey@neuling.org>
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On 02/10/2010 06:31 AM, Michael Neuling wrote:
> In message<20100210141016.4D18.A69D9226@jp.fujitsu.com>  you wrote:
>>> On 02/09/2010 10:51 PM, Michael Neuling wrote:
>>>>>> I'd still like someone with a CONFIG_STACK_GROWSUP arch to test/ACK it
>>>>>> as well.
>>>>>
>>>>> There's only one CONFIG_GROWSUP arch - parisc.
>>>>> Could someone please test it on parisc?
>>>
>>> I did.
>>>
>>>> How about doing:
>>>>     'ulimit -s 15; ls'
>>>> before and after the patch is applied.  Before it's applied, 'ls' should
>>>> be killed.  After the patch is applied, 'ls' should no longer be killed.
>>>>
>>>> I'm suggesting a stack limit of 15KB since it's small enough to trigger
>>>> 20*PAGE_SIZE.  Also 15KB not a multiple of PAGE_SIZE, which is a trickier
>>>> case to handle correctly with this code.
>>>>
>>>> 4K pages on parisc should be fine to test with.
>>>
>>> Mikey, thanks for the suggested test plan.
>>>
>>> I'm not sure if your patch does it correct for parisc/stack-grows-up-case.
>>>
>>> I tested your patch on  a 4k pages kernel:
>>> root@c3000:~# uname -a
>>> Linux c3000 2.6.33-rc7-32bit #221 Tue Feb 9 23:17:06 CET 2010 parisc GNU/Li
> nux
>>>
>>> Without your patch:
>>> root@c3000:~# ulimit -s 15; ls
>>> Killed
>>> ->  correct.
>>>
>>> With your patch:
>>> root@c3000:~# ulimit -s 15; ls
>>> Killed
>>> _or_:
>>> root@c3000:~# ulimit -s 15; ls
>>> Segmentation fault
>>> ->  ??
>>>
>>> Any idea?
>>
>> My x86_64 box also makes segmentation fault. I think "ulimit -s 15" is too sm
> all stack for ls.
>> "ulimit -s 27; ls "  wroks perfectly fine.
>
> Arrh.  I asked Helge offline earlier to check what use to work on parisc
> on 2.6.31.
>
> I guess PPC has a nice clean non-bloated ABI :-D

Hi Mikey,

I tested again, and it works for me with "ulimit -s 27" as well (on a 4k, 32bit kernel).
Still, I'm not 100%  sure if your patch is correct.
Anyway, it seems to work.

But what makes me wonder is, why EXTRA_STACK_VM_PAGES is defined in pages at all.
You wrote in your patch description:
> This bug means that when limiting the stack to less the 20*PAGE_SIZE (eg.
> 80K on 4K pages or 'ulimit -s 79') all processes will be killed before
> they start.  This is particularly bad with 64K pages, where a ulimit below
> 1280K will kill every process.

Wouldn't it make sense to define and use EXTRA_STACK_VM_SIZE instead (e.g. as 20*4096 = 80k)?
This extra stack reservation should IMHO be independend of the actual kernel page size.

Helge
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From: Michael Neuling <mikey@neuling.org>
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Subject: Re: [PATCH] Restrict initial stack space expansion to rlimit
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To: Helge Deller <deller@gmx.de>
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In message <4B7481A6.7080300@gmx.de> you wrote:
> On 02/10/2010 06:31 AM, Michael Neuling wrote:
> > In message<20100210141016.4D18.A69D9226@jp.fujitsu.com>  you wrote:
> >>> On 02/09/2010 10:51 PM, Michael Neuling wrote:
> >>>>>> I'd still like someone with a CONFIG_STACK_GROWSUP arch to test/ACK it
> >>>>>> as well.
> >>>>>
> >>>>> There's only one CONFIG_GROWSUP arch - parisc.
> >>>>> Could someone please test it on parisc?
> >>>
> >>> I did.
> >>>
> >>>> How about doing:
> >>>>     'ulimit -s 15; ls'
> >>>> before and after the patch is applied.  Before it's applied, 'ls' should
> >>>> be killed.  After the patch is applied, 'ls' should no longer be killed.
> >>>>
> >>>> I'm suggesting a stack limit of 15KB since it's small enough to trigger
> >>>> 20*PAGE_SIZE.  Also 15KB not a multiple of PAGE_SIZE, which is a trickie
r
> >>>> case to handle correctly with this code.
> >>>>
> >>>> 4K pages on parisc should be fine to test with.
> >>>
> >>> Mikey, thanks for the suggested test plan.
> >>>
> >>> I'm not sure if your patch does it correct for parisc/stack-grows-up-case
.
> >>>
> >>> I tested your patch on  a 4k pages kernel:
> >>> root@c3000:~# uname -a
> >>> Linux c3000 2.6.33-rc7-32bit #221 Tue Feb 9 23:17:06 CET 2010 parisc GNU/
Li
> > nux
> >>>
> >>> Without your patch:
> >>> root@c3000:~# ulimit -s 15; ls
> >>> Killed
> >>> ->  correct.
> >>>
> >>> With your patch:
> >>> root@c3000:~# ulimit -s 15; ls
> >>> Killed
> >>> _or_:
> >>> root@c3000:~# ulimit -s 15; ls
> >>> Segmentation fault
> >>> ->  ??
> >>>
> >>> Any idea?
> >>
> >> My x86_64 box also makes segmentation fault. I think "ulimit -s 15" is too
 sm
> > all stack for ls.
> >> "ulimit -s 27; ls "  wroks perfectly fine.
> >
> > Arrh.  I asked Helge offline earlier to check what use to work on parisc
> > on 2.6.31.
> >
> > I guess PPC has a nice clean non-bloated ABI :-D
> 
> Hi Mikey,
> 
> I tested again, and it works for me with "ulimit -s 27" as well (on a
> 4k, 32bit kernel).
> Still, I'm not 100%  sure if your patch is correct.

Thanks for retesting

Did "ulimit -s 27" fail before you applied?

> Anyway, it seems to work.
> 
> But what makes me wonder is, why EXTRA_STACK_VM_PAGES is defined in pages at 
all.
> You wrote in your patch description:
> > This bug means that when limiting the stack to less the 20*PAGE_SIZE (eg.
> > 80K on 4K pages or 'ulimit -s 79') all processes will be killed before
> > they start.  This is particularly bad with 64K pages, where a ulimit below
> > 1280K will kill every process.
> 
> Wouldn't it make sense to define and use EXTRA_STACK_VM_SIZE instead
> (e.g. as 20*4096 = 80k)?  This extra stack reservation should IMHO be
> independend of the actual kernel page size.

If you look back through this thread, that has already been noted but
it's a separate issue to this bug, so that change will be deferred till
2.6.34.

Mikey
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From - Thu Nov 08 21:05:39 2018
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when i ported the Blackfin code to the tracehook framework, i copied a late=
nt=20
bug from the sparc port.  trying to trace another process while handling=20
signals no longer worked (and subsequently broke some of the gdb tests).

this was due to calling tracehook_signal_handler() with the last argument=20
(stepping) always as 0.  if we look at the definition of this function in=20
linux/tracehook.h, we see that calling the function stepping=3D0 is pointle=
ss:
	if (stepping)
		ptrace_notify(SIGTRAP);

after Roland pointed out some more stuff, i went back and looked at all the=
=20
tracehook arches in the tree.  it seems like these arches are all broken in=
=20
the same way:
	parisc (arch/parisc/kernel/signal.c)
	SuperH (64bit only) (arch/sh/kernel/signal_64.c)
	Sparc (all bits) (arch/sparc/kernel/signal{_32,32,_64}.c)

seems like you guys should just change the last argument to:
	test_thread_flag(TIF_SINGLESTEP)
=2Dmike

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From - Thu Nov 08 21:05:40 2018
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From: Mike Frysinger <vapier@gentoo.org>
Date: Thu, 11 Feb 2010 19:10:47 -0500

> when i ported the Blackfin code to the tracehook framework, i copied a latent 
> bug from the sparc port.  trying to trace another process while handling 
> signals no longer worked (and subsequently broke some of the gdb tests).

What you seem to be missing is that on Sparc TIF_SINGLESTEP will never
be set, because it does not support hardware single step.

This thread flag is not even defined on that platform.
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On Thursday 11 February 2010 19:39:50 David Miller wrote:
> From: Mike Frysinger <vapier@gentoo.org>
> > when i ported the Blackfin code to the tracehook framework, i copied a
> > latent bug from the sparc port.  trying to trace another process while
> > handling signals no longer worked (and subsequently broke some of the g=
db
> > tests).
>=20
> What you seem to be missing is that on Sparc TIF_SINGLESTEP will never
> be set, because it does not support hardware single step.
>=20
> This thread flag is not even defined on that platform.

my point is that these arches never call ptrace_notify(SIGTRAP) from their=
=20
signal handlers.  maybe the arch is unable to due to some port/hardware=20
limitation and this is currently the expected behavior.

dont get me wrong ... i dont particularly care if your arch has a bug in it=
=20
here.  my arch did have a bug and on the off chance that others did too, i=
=20
thought i'd drop an e-mail to people.  if your arch is in the "limited"=20
category, feel free to ignore this.
=2Dmike

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From - Thu Nov 08 21:05:40 2018
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From: Roland McGrath <roland@redhat.com>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.ports.parisc,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: Re: parsic/sh/sparc tracehook breakage when tracing signals
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> when i ported the Blackfin code to the tracehook framework, i copied a latent 
> bug from the sparc port.  trying to trace another process while handling 
> signals no longer worked (and subsequently broke some of the gdb tests).

What you mean is that single-step into a signal handler fails to stop at
the first instruction of the handler.  (Instead it stops after the first
instruction in the handler's prologue.)

> this was due to calling tracehook_signal_handler() with the last argument 
> (stepping) always as 0.  if we look at the definition of this function in 
> linux/tracehook.h, we see that calling the function stepping=0 is pointless:
> 	if (stepping)
> 		ptrace_notify(SIGTRAP);

Indeed, it doesn't do anything else right now.  But the reason to call it
regardless is so that every arch is consistent in telling the generic code
what is going on.  If we add a future feature to ptrace (or something else)
to track signal handler setups, that feature may very well not be one that
fires only when single-step is in use.  An arch that is set up now to call
tracehook_signal_handler() exactly as that function's kerneldoc says to do
will be prepared for such things to work without later arch changes.

> after Roland pointed out some more stuff, i went back and looked at all the 
> tracehook arches in the tree.  it seems like these arches are all broken in 
> the same way:
> 	parisc (arch/parisc/kernel/signal.c)
> 	SuperH (64bit only) (arch/sh/kernel/signal_64.c)
> 	Sparc (all bits) (arch/sparc/kernel/signal{_32,32,_64}.c)
> 
> seems like you guys should just change the last argument to:
> 	test_thread_flag(TIF_SINGLESTEP)

Whether there is a TIF_SINGLESTEP and what it means is arch-specific.
If arch_has_single_step(), then the argument should be nonzero if
user_enable_single_step() is in force at the time of handler setup.

In parisc, it should test for either TIF_SINGLESTEP or TIF_BLOCKSTEP.

In sh, going from what signal_32.c does, it should indeed do as you say.

In sparc, arch_has_single_step()==0, so there is nothing to do.



Thanks,
Roland
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From - Thu Nov 08 21:05:40 2018
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On Thu, Feb 11, 2010 at 07:10:47PM -0500, Mike Frysinger wrote:
> seems like you guys should just change the last argument to:
> 	test_thread_flag(TIF_SINGLESTEP)

Good catch, I've committed a patch to fix this, will send it upstream
today.

regards, Kyle
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From: Kyle McMartin <kyle@redhat.com>

Mike Frysinger pointed out that calling tracehook_signal_handler with
stepping=0 missed testing the thread flags, resulting in not calling
ptrace_notify. Fix this by testing if we're single stepping or branch
stepping and setting the flag accordingly.

Tested, seems to work.

Reported-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
---
 arch/parisc/kernel/signal.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index e8467e4..07b3dac 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -469,7 +469,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 
-	tracehook_signal_handler(sig, info, ka, regs, 0);
+	tracehook_signal_handler(sig, info, ka, regs, 
+		test_thread_flag(TIF_SINGLESTEP) ||
+		test_thread_flag(TIF_BLOCKSTEP));
 
 	return 1;
 }
-- 
1.6.6

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On Fri, 12 Feb 2010, Kyle McMartin wrote:
> 
> Mike Frysinger pointed out that calling tracehook_signal_handler with
> stepping=0 missed testing the thread flags, resulting in not calling
> ptrace_notify. Fix this by testing if we're single stepping or branch
> stepping and setting the flag accordingly.
> 
> Tested, seems to work.

Hmm. All other architectures either pass in zero, or test TIF_SINGLESTEP. 

I guess TIF_BLOCKSTEP is a parisc addition, so now parisc matches x86 and 
power etc, but it still makes me wonder about all those other 
architectures that pass in zero.

For the curious, that seems to be at least sparc and 64-bit (but not 
32-bit) sh.

David? Paul?

		Linus

---
> Reported-by: Mike Frysinger <vapier@gentoo.org>
> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
> ---
>  arch/parisc/kernel/signal.c |    4 +++-
>  1 files changed, 3 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
> index e8467e4..07b3dac 100644
> --- a/arch/parisc/kernel/signal.c
> +++ b/arch/parisc/kernel/signal.c
> @@ -469,7 +469,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
>  	recalc_sigpending();
>  	spin_unlock_irq(&current->sighand->siglock);
>  
> -	tracehook_signal_handler(sig, info, ka, regs, 0);
> +	tracehook_signal_handler(sig, info, ka, regs, 
> +		test_thread_flag(TIF_SINGLESTEP) ||
> +		test_thread_flag(TIF_BLOCKSTEP));
>  
>  	return 1;
>  }
> -- 
> 1.6.6
> 

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On Fri, Feb 12, 2010 at 08:21:33AM -0800, Linus Torvalds wrote:
> Hmm. All other architectures either pass in zero, or test TIF_SINGLESTEP. 
> 
> I guess TIF_BLOCKSTEP is a parisc addition, so now parisc matches x86 and 
> power etc, but it still makes me wonder about all those other 
> architectures that pass in zero.
>

Yeah, BLOCKSTEP is the branch tracing bit (traps on a taken branch.)
 
> For the curious, that seems to be at least sparc and 64-bit (but not 
> 32-bit) sh.
> 

Mike sent an email to them reporting this as well, David points out that
sparc has no hw singlestepping, so 0 is appropriate there. SH does seem
to have a legitimate bug.

regards, Kyle

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On Friday 12 February 2010 11:21:33 Linus Torvalds wrote:
> On Fri, 12 Feb 2010, Kyle McMartin wrote:
> > Mike Frysinger pointed out that calling tracehook_signal_handler with
> > stepping=3D0 missed testing the thread flags, resulting in not calling
> > ptrace_notify. Fix this by testing if we're single stepping or branch
> > stepping and setting the flag accordingly.
> >
> > Tested, seems to work.
>=20
> Hmm. All other architectures either pass in zero, or test TIF_SINGLESTEP.
>=20
> I guess TIF_BLOCKSTEP is a parisc addition, so now parisc matches x86 and
> power etc, but it still makes me wonder about all those other
> architectures that pass in zero.
>=20
> For the curious, that seems to be at least sparc and 64-bit (but not
> 32-bit) sh.
>=20
> David? Paul?

David said that the sparc code is currently correct as hardware single=20
stepping is not supported:
http://lkml.org/lkml/2010/2/11/385
=2Dmike

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On Fri, Feb 12, 2010 at 08:21:33AM -0800, Linus Torvalds wrote:
> On Fri, 12 Feb 2010, Kyle McMartin wrote:
> > Mike Frysinger pointed out that calling tracehook_signal_handler with
> > stepping=0 missed testing the thread flags, resulting in not calling
> > ptrace_notify. Fix this by testing if we're single stepping or branch
> > stepping and setting the flag accordingly.
> > 
> > Tested, seems to work.
> 
> Hmm. All other architectures either pass in zero, or test TIF_SINGLESTEP. 
> 
> I guess TIF_BLOCKSTEP is a parisc addition, so now parisc matches x86 and 
> power etc, but it still makes me wonder about all those other 
> architectures that pass in zero.
> 
> For the curious, that seems to be at least sparc and 64-bit (but not 
> 32-bit) sh.
> 
> David? Paul?
> 
It's a legitimate bug on sh64. We support hardware single stepping there
but never tied in the thread flags when the code was merged with 32-bit,
so this behaviour has existed for some time. I'll fix it up and send out
patches as soon as I get a chance to test it.

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The following changes since commit 627fa177a1502ad24390d945851209ac022f3a36:
  Linus Torvalds (1):
        Merge branch 'for-linus' of git://git.kernel.org/.../dtor/input

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland.git parisc/tracehook

Roland McGrath (1):
      Revert "parisc: HAVE_ARCH_TRACEHOOK"

 arch/parisc/Kconfig |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)


Thanks,
Roland

---

[PATCH] Revert "parisc: HAVE_ARCH_TRACEHOOK"

This reverts commit 81bf550d9cdfe0325eb1504b06c9f6511b442c1a.

HAVE_ARCH_TRACEHOOK requires defining the user_regset interfaces,
including task_user_regset_view().  parisc doesn't do that yet,
so don't lie about it.

Signed-off-by: Roland McGrath <roland@redhat.com>
---
 arch/parisc/Kconfig |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 524d935..f388dc6 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -18,7 +18,6 @@ config PARISC
 	select BUG
 	select HAVE_PERF_EVENTS
 	select GENERIC_ATOMIC64 if !64BIT
-	select HAVE_ARCH_TRACEHOOK
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
 	  in many of their workstations & servers (HP9000 700 and 800 series,

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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] Revert "parisc: HAVE_ARCH_TRACEHOOK"
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On Mon, Feb 22, 2010 at 10:48:57AM -0800, Roland McGrath wrote:
> HAVE_ARCH_TRACEHOOK requires defining the user_regset interfaces,
> including task_user_regset_view().  parisc doesn't do that yet,
> so don't lie about it.
> 

Acked-by: Kyle McMartin <kyle@mcmartin.ca>
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: PCI patch breaks boot on rp2470 (2xPA8700)
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Kyle,

I spent the weekend bisecting to determine which patch broke booting
from scsi on my rp2470.

This patch is the culprit:
~~~
ac1aa47b131416a6ff37eb1005a0a1d2541aad6c is the first bad commit
commit ac1aa47b131416a6ff37eb1005a0a1d2541aad6c
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Mon Oct 26 13:20:44 2009 -0700

    PCI: determine CLS more intelligently

    Till now, CLS has been determined either by arch code or as
    L1_CACHE_BYTES.  Only x86 and ia64 set CLS explicitly and x86 doesn't
    always get it right.  On most configurations, the chance is that
    firmware configures the correct value during boot.

    This patch makes pci_init() determine CLS by looking at what firmware
    has configured.  It scans all devices and if all non-zero values
    agree, the value is used.  If none is configured or there is a
    disagreement, pci_dfl_cache_line_size is used.  arch can set the dfl
    value (via PCI_CACHE_LINE_BYTES or pci_dfl_cache_line_size) or
    override the actual one.

    ia64, x86 and sparc64 updated to set the default cls instead of the
    actual one.

    While at it, declare pci_cache_line_size and pci_dfl_cache_line_size
    in pci.h and drop private declarations from arch code.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Acked-by: David Miller <davem@davemloft.net>
    Acked-by: Greg KH <gregkh@suse.de>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Tony Luck <tony.luck@intel.com>
    Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

:040000 040000 8b20ad60ed3e273b74bfb588dbea6948547e8de1
92498585770ca360c2716c0d3c55d5f4a37356a1 M     arch
:040000 040000 56d1abd61286dd303bb37c2002b699e526988f85
3f20bba2d1e107a80a738e3561fc0fa92e0c4024 M     drivers
:040000 040000 26d85393248c542ca2cea0e3ac4ceabd0ea659aa
326cbb98321cd4e490d888f48bc584b3662c8f06 M     include
~~~

Removing this patch allows my system to boot again.

The patch does something which is wrong IMO. It changes *when*
pci_cache_line_size is set from (a) initialized data to (b) a call to
pci_apply_final_quirks(...). There are several drivers which call
pci_try_set_mwi(...) and pci_set_mwi(...) which indirectly use of the
value of pci_cache_line_size, and the author of the patch doesn't make
any mention of having verified that the drivers don't call
pci_*_set_mwi(...) *before* pci_apply_final_quirks(...) is called.

Case in point the sym53c8xx driver does this:
~~~ drivers/scsi/sym53c8xx_2/sym_glue.c
static int __devinit sym_set_workarounds(struct sym_device *device)
        ...
        /* If the chip can do Memory Write Invalidate, enable it */
        if (chip->features & FE_WRIE) {
                if (pci_set_mwi(pdev))
                        return -ENODEV;
        }
        ...
~~~ drivers/pci/pci.c
int
pci_set_mwi(struct pci_dev *dev)
{
        int rc;
        u16 cmd;

        rc = pci_set_cacheline_size(dev);
        if (rc)
                return rc;
...
~~~ driver/pci/pci.c
int pci_set_cacheline_size(struct pci_dev *dev)
{
        u8 cacheline_size;

        if (!pci_cache_line_size)
                return -EINVAL;
...
~~~
Which means that if the driver calls pci_set_mwi() *before*
pci_apply_final_quirks() sets pci_cache_line_size, that it would
appear as if there are no devices.

To verify this I instrumented the PCI subsystem but my assumption
turns out not to be true:
~~~
PCI: pcibios_init set CLS.
...
PCI: CLS 64 bytes
...
pci_set_mwi begin
pci_set_cacheline_size: PCI_CLS is 16
pci_set_cacheline_size: Read CLS is 16
pci_set_mwi end
...
~~~
The ordering is correct.

The attached patch allows me to boot again by setting the PCI CLS to
64 early-on in pcibios_init().

I don't know *why* it works, what a shame, can anyone see something I've missed?

Cheers,
Carlos.

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Subject: Re: PCI patch breaks boot on rp2470 (2xPA8700)
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To: "Carlos O'Donell" <carlos@systemhalted.org>
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On Mon, Feb 22, 2010 at 3:25 PM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> Kyle,
>
> I spent the weekend bisecting to determine which patch broke booting
> from scsi on my rp2470.
...
> The attached patch allows me to boot again by setting the PCI CLS to
> 64 early-on in pcibios_init().

What is the boot failure message?


> I don't know *why* it works, what a shame, can anyone see something I've missed?

pci_cache_line_size is uninitialized and I expect is zero.
If zero, pci_set_cacheline_size() immediately returns an error and
causes the sym53c8xx_2
driver to assert there is no SCSI host controller present (returns
-ENODEV). Ergo no booting.

fs_initcall_sync(pci_apply_final_quirks) should be called before the
device_initcall() stuff.
I expect pci_cache_line_size should be non-zero before sym2 driver is invoked.

There was a bug in pci_apply_final_quirks() could cause
pci_set_cacheline_size() to
not set pci_cache_line_size, but the fix is in the current linus tree:
   http://patchwork.kernel.org/patch/69755/

Is it possible your tree is missing that fix for some reason?

In any case, your patch looks good to me. Please add:
   Reviewed-by: Grant Grundler <grundler@google.com>

thanks,
grant
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On Mon, Feb 22, 2010 at 04:54:33PM -0800, Grant Grundler wrote:
> In any case, your patch looks good to me. Please add:
>    Reviewed-by: Grant Grundler <grundler@google.com>

Your analysis looks correct to me, based on a quick grep.

Applied, thanks Carlos.

regards, Kyle
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Subject: Re: PCI patch breaks boot on rp2470 (2xPA8700)
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On Mon, Feb 22, 2010 at 8:49 PM, Kyle McMartin <kmcmartin@redhat.com> w=
rote:
> On Mon, Feb 22, 2010 at 04:54:33PM -0800, Grant Grundler wrote:
>> In any case, your patch looks good to me. Please add:
>> =A0 =A0Reviewed-by: Grant Grundler <grundler@google.com>
>
> Your analysis looks correct to me, based on a quick grep.

I agree. Thanks Grant.

I booted a broken kernel and it reports:
~~~
PCI: CLS 0 bytes, default 64
~~~
Which is exactly the case mentioned here:
http://patchwork.kernel.org/patch/69755/

> Applied, thanks Carlos.

You're welcome!

I'm building directly from here:
git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git

Is this correct? My assumption is that you keep this branch up to date
as you pull/test for parisc?

Cheers,
Carlos.
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Commit-ID:  5e6dbc260704ce4d22fc9664f517f0bb6748feaa
Gitweb:     http://git.kernel.org/tip/5e6dbc260704ce4d22fc9664f517f0bb6748feaa
Author:     Roland McGrath <roland@redhat.com>
AuthorDate: Mon, 22 Feb 2010 10:37:07 -0800
Committer:  H. Peter Anvin <hpa@zytor.com>
CommitDate: Tue, 23 Feb 2010 10:34:41 -0800

parisc: Disable CONFIG_HAVE_ARCH_TRACEHOOK

> FYI, this commit broke tip:master on PARISC (other architectures are fine):
>
>  kernel/built-in.o: In function `ptrace_request':
>  (.text.ptrace_request+0x2cc): undefined reference to `task_user_regset_view'

This means that parisc failed to meet the documented requirements for
setting CONFIG_HAVE_ARCH_TRACEHOOK, but set it anyway.  If arch folks don't
follow the specs, it defeats the whole purpose of having clear statements
of requirements for arch code.

Until parisc finishes up its requirements, disable CONFIG_HAVE_ARCH_TRACEHOOK.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
LKML-Reference: <20100222183707.8749D64C@magilla.sf.frob.com>
Cc: <linux-parisc@vger.kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
---
 arch/parisc/Kconfig |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 524d935..f388dc6 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -18,7 +18,6 @@ config PARISC
 	select BUG
 	select HAVE_PERF_EVENTS
 	select GENERIC_ATOMIC64 if !64BIT
-	select HAVE_ARCH_TRACEHOOK
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
 	  in many of their workstations & servers (HP9000 700 and 800 series,
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On Tue, Feb 23, 2010 at 07:56:23AM -0500, Carlos O'Donell wrote:
> You're welcome!
> 
> I'm building directly from here:
> git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
> 
> Is this correct? My assumption is that you keep this branch up to date
> as you pull/test for parisc?
> 

I will, yes. I haven't pushed out an update since I haven't managed to
build/boot test it yet, but it's chugging away right now.

regards, Kyle
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On Tue, Feb 23, 2010 at 7:58 PM, Kyle McMartin <kmcmartin@redhat.com> wrote:
> On Tue, Feb 23, 2010 at 07:56:23AM -0500, Carlos O'Donell wrote:
>> You're welcome!
>>
>> I'm building directly from here:
>> git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
>>
>> Is this correct? My assumption is that you keep this branch up to date
>> as you pull/test for parisc?
>>
>
> I will, yes. I haven't pushed out an update since I haven't managed to
> build/boot test it yet, but it's chugging away right now.

Sorry Kyle, I hope you didn't think I was impling that you were slow
to update. You're doing a great job. I'm just a toolchain dude, my
happy day involves a kernel that doesn't eat my filesystem. I'm have
fun fixing the userspace bits.

Now that I can boot a recent kernel I'm back to fixing vfork/execve
issues as reported by debian. Wish me luck.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:41 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: PCI patch breaks boot on rp2470 (2xPA8700)
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On Tue, Feb 23, 2010 at 10:32:34PM -0500, Carlos O'Donell wrote:
> Sorry Kyle, I hope you didn't think I was impling that you were slow
> to update. You're doing a great job. I'm just a toolchain dude, my
> happy day involves a kernel that doesn't eat my filesystem. I'm have
> fun fixing the userspace bits.
> 

I didn't mean it like that at all, I just plan on sending it immediately
to Linus for 2.6.33, so I wanted to make sure it built on a bunch of
different configs.

regards, Kyle
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From - Thu Nov 08 21:05:41 2018
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Subject: [git patches] boot fix for 2.6.33 for parisc
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Hi Linus, please pull the following change for parisc to fix and issue
which prevents Linux from booting. (Short summary: PCI CLS was being set
from the default by the PCI layer *after* fixups, which meant sym2
fixups had an unset PCI CLS, which meant we couldn't find the root
disk.)

regards, Kyle

The following changes since commit 75ef7cdda2daa35be9e070ac8e5258759ac03d06:
  Linus Torvalds (1):
        Merge git://git.kernel.org/.../davem/net-2.6

are available in the git repository at:

  master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git urgent

Carlos O'Donell (1):
      parisc: Set PCI CLS early in boot.

 arch/parisc/kernel/pci.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index f7064ab..9e74bfe 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -18,7 +18,6 @@
 
 #include <asm/io.h>
 #include <asm/system.h>
-#include <asm/cache.h>		/* for L1_CACHE_BYTES */
 #include <asm/superio.h>
 
 #define DEBUG_RESOURCES 0
@@ -123,6 +122,10 @@ static int __init pcibios_init(void)
 	} else {
 		printk(KERN_WARNING "pci_bios != NULL but init() is!\n");
 	}
+
+	/* Set the CLS for PCI as early as possible. */
+	pci_cache_line_size = pci_dfl_cache_line_size;
+
 	return 0;
 }
 
@@ -171,7 +174,7 @@ void pcibios_set_master(struct pci_dev *dev)
 	** upper byte is PCI_LATENCY_TIMER.
 	*/
 	pci_write_config_word(dev, PCI_CACHE_LINE_SIZE,
-				(0x80 << 8) | (L1_CACHE_BYTES / sizeof(u32)));
+			      (0x80 << 8) | pci_cache_line_size);
 }
 
 
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arch/parisc/include/asm/percpu.h:6: ERROR: trailing whitespace

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/include/asm/percpu.h |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/include/asm/percpu.h b/arch/parisc/include/asm/percpu.h
index a0dcd19..fb92561 100644
--- a/arch/parisc/include/asm/percpu.h
+++ b/arch/parisc/include/asm/percpu.h
@@ -3,5 +3,4 @@
 
 #include <asm-generic/percpu.h>
 
-#endif 
-
+#endif
-- 
1.7.0.90.g251a4


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arch/parisc/include/asm/current.h:8: ERROR: "foo * bar" should be "foo *bar"
arch/parisc/include/asm/current.h:12: ERROR: trailing whitespace

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/include/asm/current.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/include/asm/current.h b/arch/parisc/include/asm/current.h
index 0fb9338..4cbf4ad 100644
--- a/arch/parisc/include/asm/current.h
+++ b/arch/parisc/include/asm/current.h
@@ -5,11 +5,11 @@
 
 struct task_struct;
 
-static inline struct task_struct * get_current(void)
+static inline struct task_struct *get_current(void)
 {
 	return current_thread_info()->task;
 }
- 
+
 #define current get_current()
 
 #endif /* !(_PARISC_CURRENT_H) */
-- 
1.7.0.90.g251a4


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Subject: [PATCH 32/66] arch/parisc/include/asm/parport.h: Checkpatch cleanup
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arch/parisc/include/asm/parport.h:1: ERROR: trailing whitespace
arch/parisc/include/asm/parport.h:11: WARNING: space prohibited between function name and open parenthesis '('

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/include/asm/parport.h |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/include/asm/parport.h b/arch/parisc/include/asm/parport.h
index 00d9cc3..5cbf98b 100644
--- a/arch/parisc/include/asm/parport.h
+++ b/arch/parisc/include/asm/parport.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *
  * parport.h: ia32-compatible parport initialisation
  *
@@ -8,8 +8,7 @@
 #define _ASM_PARPORT_H 1
 
 
-static int __devinit parport_pc_find_nonpci_ports (int autoirq, int autodma)
-{
+static int __devinit parport_pc_find_nonpci_ports (int autoirq, int autodma) {
 	/* nothing ! */
 	return 0;
 }
-- 
1.7.0.90.g251a4

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From - Thu Nov 08 21:05:42 2018
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From: Thibaut VARENE <T-Bone@parisc-linux.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH 32/66] arch/parisc/include/asm/parport.h: Checkpatch 
	cleanup
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On Sat, Feb 27, 2010 at 5:51 PM, Andrea Gelmini
<andrea.gelmini@gelma.net> wrote:
> arch/parisc/include/asm/parport.h:1: ERROR: trailing whitespace
> arch/parisc/include/asm/parport.h:11: WARNING: space prohibited betwe=
en function name and open parenthesis '('
>
> Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
> ---
> =C2=A0arch/parisc/include/asm/parport.h | =C2=A0 =C2=A05 ++---
> =C2=A01 files changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/arch/parisc/include/asm/parport.h b/arch/parisc/include/=
asm/parport.h
> index 00d9cc3..5cbf98b 100644
> --- a/arch/parisc/include/asm/parport.h
> +++ b/arch/parisc/include/asm/parport.h

> @@ -8,8 +8,7 @@
> =C2=A0#define _ASM_PARPORT_H 1
>
>
> -static int __devinit parport_pc_find_nonpci_ports (int autoirq, int =
autodma)
> -{
> +static int __devinit parport_pc_find_nonpci_ports (int autoirq, int =
autodma) {

This looks very much in contradiction with CodingStyle, since
parport_pc_find_nonpci_ports() is a function, and it's not a fix for
the quoted "WARNING". I'm guessing this wasn't intended the way it is.

HTH

T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/

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Replace open-coded rate limiting logic with __ratelimit().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/unaligned.c |   14 ++++----------
 1 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index e6f4b7a..92d977b 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -25,6 +25,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/signal.h>
+#include <linux/ratelimit.h>
 #include <asm/uaccess.h>
 
 /* #define DEBUG_UNALIGNED 1 */
@@ -446,8 +447,7 @@ static int emulate_std(struct pt_regs *regs, int frreg, int flop)
 
 void handle_unaligned(struct pt_regs *regs)
 {
-	static unsigned long unaligned_count = 0;
-	static unsigned long last_time = 0;
+	static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
 	unsigned long newbase = R1(regs->iir)?regs->gr[R1(regs->iir)]:0;
 	int modify = 0;
 	int ret = ERR_NOTHANDLED;
@@ -460,14 +460,8 @@ void handle_unaligned(struct pt_regs *regs)
 			goto force_sigbus;
 		}
 
-		if (unaligned_count > 5 &&
-				time_after(jiffies, last_time + 5 * HZ)) {
-			unaligned_count = 0;
-			last_time = jiffies;
-		}
-
-		if (!(current->thread.flags & PARISC_UAC_NOPRINT) 
-		    && ++unaligned_count < 5) {
+		if (!(current->thread.flags & PARISC_UAC_NOPRINT) &&
+			__ratelimit(&ratelimit)) {
 			char buf[256];
 			sprintf(buf, "%s(%d): unaligned access to 0x" RFMT " at ip=0x" RFMT "\n",
 				current->comm, task_pid_nr(current), regs->ior, regs->iaoq[0]);
-- 
1.6.0.6


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Subject: Re: [PATCH 32/66] arch/parisc/include/asm/parport.h: Checkpatch 
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2010/2/27 Thibaut VARENE <T-Bone@parisc-linux.org>:

Hi Thubaut,
   thanks a lot for you answer.

> This looks very much in contradiction with CodingStyle, since
> parport_pc_find_nonpci_ports() is a function, and it's not a fix for
> the quoted "WARNING". I'm guessing this wasn't intended the way it is.

My fault. I'll look at checkpatch.pl regexp to resolve false positive
(I've found a few other regressions).

Thanks again,
Andrea
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On Sun, Feb 28, 2010 at 07:58:15PM +0900, Akinobu Mita wrote:
> Replace open-coded rate limiting logic with __ratelimit().
> 

Thanks, I'll apply this.

regards, Kyle
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New commits:
commit 6ee77658ce387ad6c85dcbda4a68bc33efd8de39
Author: Akinobu Mita <akinobu.mita@gmail.com>
Date:   Sun Feb 28 10:58:15 2010 +0000

    parisc: use __ratelimit in unaligned.c
    
    Replace open-coded rate limiting logic with __ratelimit().
    
    Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit c60185248fd1c7b777f08d3f3337836331da3d17
Author: john stultz <johnstul@us.ibm.com>
Date:   Wed Dec 23 04:14:03 2009 +0000

    parisc: Convert to read/update_persistent_clock
    
    This patch converts the parisc architecture to use the generic
    read_persistent_clock and update_persistent_clock interfaces, reducing
    the amount of arch specific code we have to maintain, and allowing for
    further cleanups in the future.
    
    I have not built or tested this patch, so help from arch maintainers
    would be appreciated.
    
    Signed-off-by: John Stultz <johnstul@us.ibm.com>
    Acked-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit eef83afbd6c2577c9fd07e1a280bb0beb603b293
Author: Robert P. J. Day <rpjday@crashcourse.ca>
Date:   Thu Dec 31 20:43:55 2009 +0000

    parisc: Simplify param.h by including <asm-generic/param.h>
    
    Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 1d747c7e7b754cacb9bc8d31854bdc3a58d70597
Author: Helge Deller <deller@gmx.de>
Date:   Tue Feb 2 19:06:23 2010 +0000

    parisc: drop unnecessary cast in __ldcw_align() macro
    
    __ldcw_align() can directly access the slock member of struct arch_spinlock_t
    instead of using an ugly cast.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 888c31fc83ddc7fcd9947cb67c5718b4e3dd5e1b
Author: Helge Deller <deller@gmx.de>
Date:   Mon Feb 1 19:56:33 2010 +0000

    parisc: add strict copy size checks (v2)
    
    Add CONFIG_DEBUG_STRICT_USER_COPY_CHECKS, copied from the x86
    implementation. Tested with 32 and 64bit kernel.
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit a3bee03e718c9251456676b71a723a34c999e891
Author: Frans Pop <elendil@planet.nl>
Date:   Sat Feb 6 17:47:14 2010 +0000

    parisc: remove trailing space in messages
    
    Signed-off-by: Frans Pop <elendil@planet.nl>
    Cc: linux-parisc@vger.kernel.org
    Cc: Kyle McMartin <kyle@mcmartin.ca>
    Cc: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 81e4a5e3057740a625cf556879ae0becf6199f8c
Author: Kyle McMartin <kyle@mcmartin.ca>
Date:   Sat Dec 26 17:19:17 2009 +0000

    parisc: ditto sys_accept4
    
    tested with test_accept4.c from de11defebf00007677fb7ee91d9b089b78786fbb
    
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

commit 9ceb38e6b691debe4bf04cb63165c503a8556177
Author: Helge Deller <deller@gmx.de>
Date:   Tue Dec 22 22:50:33 2009 +0000

    parisc: wire up sys_recvmmsg
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

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Subject: Re: [git patches] parisc fixes for v2.6.34
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On Sat, Mar 06, 2010 at 11:20:35PM +0000, Kyle McMartin wrote:
>   /pub/scm/linux/kernel/git/kyle/parisc-2.6.git for-linus
> 

Ugh, sorry, I meant of course:

master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git for-linus

My bad for forgetting to edit that.

regards, Kyle
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Subject: [git patches] parisc fixes for v2.6.34
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Hi Linus, just a small parisc update for .34 as I've not had a chance to
fix up the new regset and tracehook stuff yet.

All of this code has been baking in -next since last release (except the
latest trivial ratelimit fix) and has been freshly rebased since jejb's
XFS coherence fix was merged seperately.

Tested to build and boot ok on my rp3440.

regards, Kyle

The following changes since commit 66b89159c25a47d2177743526c61b5ada7acc39e:
  Linus Torvalds (1):
        Merge git://git.kernel.org/.../joern/logfs

are available in the git repository at:

  /pub/scm/linux/kernel/git/kyle/parisc-2.6.git for-linus

Akinobu Mita (1):
      parisc: use __ratelimit in unaligned.c

Frans Pop (1):
      parisc: remove trailing space in messages

Helge Deller (3):
      parisc: wire up sys_recvmmsg
      parisc: add strict copy size checks (v2)
      parisc: drop unnecessary cast in __ldcw_align() macro

John Stultz (1):
      parisc: Convert to read/update_persistent_clock

Kyle McMartin (1):
      parisc: ditto sys_accept4

Robert P. J. Day (1):
      parisc: Simplify param.h by including <asm-generic/param.h>

 arch/parisc/Kconfig.debug          |   14 ++++++++++++++
 arch/parisc/include/asm/param.h    |   23 +----------------------
 arch/parisc/include/asm/system.h   |    2 +-
 arch/parisc/include/asm/uaccess.h  |   27 +++++++++++++++++++++++++--
 arch/parisc/include/asm/unistd.h   |    4 +++-
 arch/parisc/kernel/cache.c         |    4 ++--
 arch/parisc/kernel/syscall_table.S |    2 ++
 arch/parisc/kernel/time.c          |   29 +++++++++++++----------------
 arch/parisc/kernel/unaligned.c     |   14 ++++----------
 arch/parisc/lib/memcpy.c           |    3 ++-
 drivers/parisc/eisa_enumerator.c   |    2 +-
 drivers/parisc/superio.c           |    2 +-
 12 files changed, 69 insertions(+), 57 deletions(-)

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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex wait failure
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On Wed, 03 Feb 2010, Helge Deller wrote:

> On 02/03/2010 04:44 AM, John David Anglin wrote:
>> On Tue, 02 Feb 2010, Helge Deller wrote:
>>
>>> I wonder if we have some problems with the LWS code path in the kernel
>>> regarding atomic locking with futexes?
>>>
>>> In arch/parisc/kernel/syscall.S we use a lock table called 
>>> lws_lock_start[]
>>> to guard the LWS code against other competing userspace processes.
>>> I wonder if this really enough, esp. since we do implement futex syscalls
>>> (e.g. clone/exit calls uses futex functions to change userspace values
>>> because of CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID).
>>>
>>> Do we maybe need to protect the LWS code path with the same locking table
>>> as the
>>> generic kernel? Atomicity of futexes writing to userspace are not in sync
>>> with the locking of the LWS/lws_lock_start[] code.
>>>
>>> I tried to come up with a patch for that which I attached here, but sadly
>>> it hangs as soon as the init process is started on a 64bit/SMP kernel.
>>> So either my thinking here is stupid, or I do have a stupid coding bug.
>>>
>>> Furthermore, the coding for futex_atomic_op_inuser() in
>>> arch/parisc/include/asm/futex.h seems to miss real functionality.
>>> I didn't looked closer into this though.
>>
>> While locking may be a problem, it is not the main reason the minifail
>> program fails.  The program fails on my c3750 with a 32-bit UP kernel.
>
> Hmm, I can't reproduce it at the moment with a 32bit UP kernel on my
> c3000. The minifail3 test program I currently use (to avoid glibc issues)
> is attached.
>
>> There is no locking in this kernel.  The LWS code relies on the scheduler
>> for atomicity.
>
> yep. This should then work an a UP kernel.
>
>> I tried disabling interrupts around the crucial three instructions but
>> it didn't help.
>
> Ugh.
>
> Anyway, my current patch which compiles and runs fine is attached here as
> well. Maybe you want to try it on your SMP builds? It includes the 
> syscall.S
> changes you sent last time too.
> In this version of the patch I added on own LWS locking hash table for 
> user-space accesses,
> which is used in the LWS code and when some (probably not all) put_user()/
> get_user() calls are made in the futex code.
>
> Feedback still welcome.

I tried the patch below with 2.6.33 on three systems:

rp3440: 64-bit UP and SMP
A500-7X: 64-bit SMP
c3750: 32-bit UP

libc6 is 2.10.2-6.

As usual, I tested by trying to build and check GCC.

The most common problem on the rp3440 SMP build is a segmentation fault
in /bin/sh.  Twice it dropped core running configure near the start of
the build.  Restarting the build, the system managed to complete a full
GCC build, but the gcc and acats testsuites aborted.  Here's the backtrace
for the acats one:

Core was generated by `/bin/bash /home/dave/gnu/gcc/gcc/gcc/testsuite/ada/acats/run_all.sh'.
Program terminated with signal 11, Segmentation fault.
#0  0x00000008 in ?? ()
(gdb) bt
#0  0x00000008 in ?? ()
#1  0x0004ffd0 in stop_pipeline ()
#2  0x0003daf8 in execute_command_internal ()
#3  0x0003e3a8 in execute_command_internal ()
#4  0x0003e74c in execute_command ()
#5  0x0003e364 in execute_command_internal ()
#6  0x0003e74c in execute_command ()
#7  0x0003e364 in execute_command_internal ()
#8  0x0003e74c in execute_command ()
#9  0x0003e0a0 in execute_command_internal ()
#10 0x0003e3a8 in execute_command_internal ()
#11 0x0003e74c in execute_command ()
#12 0x0003e0a0 in execute_command_internal ()
#13 0x0003e74c in execute_command ()
#14 0x00029ac0 in reader_loop ()
#15 0x00029100 in main ()

I ran the UP build for several days without any major problems.  The most
common problem is tests randomly timeout.  I'm not sure whether the tests
actually timeout or not, but everyone that I've looked at shouldn't timeout
based on execution time.

I had pretty much the same experience on the A500-7X although I haven't
seen /bin/sh dump core running configure.

The c3750 completed a full GCC build but there were again problems running
the testsuite.  For example,

Core was generated by `expect -- /usr/share/dejagnu/runtest.exp --tool gcc'.
Program terminated with signal 11, Segmentation fault.
#0  0x409fa258 in ?? () from /usr/lib/libtcl8.5.so.0
(gdb) bt
#0  0x409fa258 in ?? () from /usr/lib/libtcl8.5.so.0
#1  0x402600a0 in start_thread (arg=0x416a4480) at pthread_create.c:302
#2  0x40e25874 in clone ()
    at ../ports/sysdeps/unix/sysv/linux/hppa/nptl/../clone.S:166
#3  0x00000000 in ?? ()

This looks like the minifail clone bug.  On the otherhand, minifail doesn't
seem to be failing.

This is the assembly code:

(gdb) disass 0x409fa248 0x409fa268
Dump of assembler code from 0x409fa248 to 0x409fa268:
0x409fa248:     copy r18,ret0
0x409fa24c:     stw r0,0(ret0)
0x409fa250:     ldo 4(ret0),ret0
0x409fa254:     cmpb,<>,n r7,ret0,0x409fa250
0x409fa258:     stw r0,0(ret0)
0x409fa25c:     copy r7,ret0
0x409fa260:     stw r0,0(ret0)
0x409fa264:     ldo 4(ret0),ret0

This may be the register.  There are several dumps in the log at the same spot.

Mar  7 11:48:18 hiauly6 kernel: do_page_fault() pid=3506 command='expect' type=1
5 address=0x416a3000
Mar  7 11:48:18 hiauly6 kernel: vm_start = 0x416a3000, vm_end = 0x416a4000
Mar  7 11:48:18 hiauly6 kernel: 
Mar  7 11:48:18 hiauly6 kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Mar  7 11:48:18 hiauly6 kernel: PSW: 00000000000011101111111100001111 Not tainte
d
Mar  7 11:48:18 hiauly6 kernel: r00-03  000eff0f 40276138 409fa4ff 00000000
Mar  7 11:48:18 hiauly6 kernel: r04-07  40a252f4 40ea5208 0001ccb8 00000000
Mar  7 11:48:18 hiauly6 kernel: r08-11  40a252f4 40ea539c 00000003 40a2990c
Mar  7 11:48:18 hiauly6 kernel: r12-15  40ea521c 40a29904 40ea5214 00000001
Mar  7 11:48:18 hiauly6 kernel: r16-19  00000008 40a232d8 40ea521c 40a252f4
Mar  7 11:48:18 hiauly6 kernel: r20-23  00000001 00000000 402636cc 00000000
Mar  7 11:48:18 hiauly6 kernel: r24-27  fffffff5 ffffffd3 0001c538 000121ac
Mar  7 11:48:18 hiauly6 kernel: r28-31  416a3000 00000000 40ea5440 40263733
Mar  7 11:48:18 hiauly6 kernel: sr00-03  00000026 00000000 00000000 00000026
Mar  7 11:48:18 hiauly6 kernel: sr04-07  00000026 00000026 00000026 00000026
Mar  7 11:48:18 hiauly6 kernel: 
Mar  7 11:48:18 hiauly6 kernel:       VZOUICununcqcqcqcqcqcrmunTDVZOUI
Mar  7 11:48:18 hiauly6 kernel: FPSR: 00001100001110000000000000000000
Mar  7 11:48:18 hiauly6 kernel: FPER1: 00000000
Mar  7 11:48:18 hiauly6 kernel: fr00-03  0c38000000000000 0000000000000000 00000
00000000000 0000000000000000
Mar  7 11:48:18 hiauly6 kernel: fr04-07  0000000000000001 0370000000000000 0000000100000000 bff0000000000000
Mar  7 11:48:18 hiauly6 kernel: fr08-11  000000024f813bc4 0000000000000000 4f813bc04f813bc8 0000800100000003
Mar  7 11:48:18 hiauly6 kernel: fr12-15  000000004facfd40 000000001019db40 4f81169cf0000174 f000017cf0000884
Mar  7 11:48:18 hiauly6 kernel: fr16-19  1044111810590240 1044111800000081 f000000000000000 0000000000000000
Mar  7 11:48:18 hiauly6 kernel: fr20-23  00000002ffffff9c fffff0004f1a4000 0000000000000088 400026c000000000
Mar  7 11:48:18 hiauly6 kernel: fr24-27  01f2603af000017c f000017400000001 105a928c00000000 4fb50230ffffffff
Mar  7 11:48:18 hiauly6 kernel: fr28-31  ffffffff00002b67 105a92881019487c 0000000100000000 4f82820000000800
Mar  7 11:48:18 hiauly6 kernel: 
Mar  7 11:48:18 hiauly6 kernel: IASQ: 00000026 00000026 IAOQ: 409fa25b 409fa253
Mar  7 11:48:18 hiauly6 kernel:  IIR: 0f801280    ISR: 00000026  IOR: 416a3000
Mar  7 11:48:18 hiauly6 kernel:  CPU:        0   CR30: 3c014000 CR31: ffffffff
Mar  7 11:48:18 hiauly6 kernel:  ORIG_R28: 00000080
Mar  7 11:48:18 hiauly6 kernel:  IAOQ[0]: 409fa25b
Mar  7 11:48:18 hiauly6 kernel:  IAOQ[1]: 409fa253
Mar  7 11:48:18 hiauly6 kernel:  RP(r2): 409fa4ff

The address appears valid.  This is a TLB miss exception (15).

> diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
> index 716634d..18d57c8 100644
> --- a/arch/parisc/include/asm/atomic.h
> +++ b/arch/parisc/include/asm/atomic.h
> @@ -24,29 +24,46 @@
>   * Hash function to index into a different SPINLOCK.
>   * Since "a" is usually an address, use one spinlock per cacheline.
>   */
> -#  define ATOMIC_HASH_SIZE 4
> -#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
> +#  define ATOMIC_HASH_SIZE (4096/L1_CACHE_BYTES)  /* 4 */
> +#  define ATOMIC_HASH(a)      (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
> +#  define ATOMIC_USER_HASH(a) (&(__atomic_user_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
>  
>  extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
> +extern arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned;
>  
>  /* Can't use raw_spin_lock_irq because of #include problems, so
>   * this is the substitute */
> -#define _atomic_spin_lock_irqsave(l,f) do {	\
> -	arch_spinlock_t *s = ATOMIC_HASH(l);		\
> +#define _atomic_spin_lock_irqsave_template(l,f,hash_func) do {	\
> +	arch_spinlock_t *s = hash_func;		\
>  	local_irq_save(f);			\
>  	arch_spin_lock(s);			\
>  } while(0)
>  
> -#define _atomic_spin_unlock_irqrestore(l,f) do {	\
> -	arch_spinlock_t *s = ATOMIC_HASH(l);			\
> +#define _atomic_spin_unlock_irqrestore_template(l,f,hash_func) do {	\
> +	arch_spinlock_t *s = hash_func;			\
>  	arch_spin_unlock(s);				\
>  	local_irq_restore(f);				\
>  } while(0)
>  
> +/* kernel memory locks */
> +#define _atomic_spin_lock_irqsave(l,f)	\
> +	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_HASH(l))
> +
> +#define _atomic_spin_unlock_irqrestore(l,f)	\
> +	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_HASH(l))
> +
> +/* userspace memory locks */
> +#define _atomic_spin_lock_irqsave_user(l,f)	\
> +	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_USER_HASH(l))
> +
> +#define _atomic_spin_unlock_irqrestore_user(l,f)	\
> +	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_USER_HASH(l))
>  
>  #else
>  #  define _atomic_spin_lock_irqsave(l,f) do { local_irq_save(f); } while (0)
>  #  define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
> +#  define _atomic_spin_lock_irqsave_user(l,f) _atomic_spin_lock_irqsave(l,f)
> +#  define _atomic_spin_unlock_irqrestore_user(l,f) _atomic_spin_lock_irqsave_user(l,f)
>  #endif
>  
>  /* This should get optimized out since it's never called.
> diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
> index 0c705c3..7bc963e 100644
> --- a/arch/parisc/include/asm/futex.h
> +++ b/arch/parisc/include/asm/futex.h
> @@ -55,6 +55,7 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
>  {
>  	int err = 0;
>  	int uval;
> +	unsigned long flags;
>  
>  	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
>  	 * our gateway page, and causes no end of trouble...
> @@ -65,10 +66,15 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
>  	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
>  		return -EFAULT;
>  
> +	_atomic_spin_lock_irqsave_user(uaddr, flags);
> +
>  	err = get_user(uval, uaddr);
> -	if (err) return -EFAULT;
> -	if (uval == oldval)
> -		err = put_user(newval, uaddr);
> +	if (!err)
> +		if (uval == oldval)
> +			err = put_user(newval, uaddr);
> +
> +	_atomic_spin_unlock_irqrestore_user(uaddr, flags);
> +
>  	if (err) return -EFAULT;
>  	return uval;
>  }
> diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
> index d91357b..4653c77 100644
> --- a/arch/parisc/include/asm/system.h
> +++ b/arch/parisc/include/asm/system.h
> @@ -160,7 +160,7 @@ static inline void set_eiem(unsigned long val)
>     ldcd). */
>  
>  #define __PA_LDCW_ALIGNMENT	4
> -#define __ldcw_align(a) ((volatile unsigned int *)a)
> +#define __ldcw_align(a) (&(a)->slock)
>  #define __LDCW	"ldcw,co"
>  
>  #endif /*!CONFIG_PA20*/
> diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
> index ec787b4..50353bd 100644
> --- a/arch/parisc/kernel/asm-offsets.c
> +++ b/arch/parisc/kernel/asm-offsets.c
> @@ -290,5 +290,11 @@ int main(void)
>  	BLANK();
>  	DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
>  	BLANK();
> +
> +#ifdef CONFIG_SMP
> +	DEFINE(ASM_ATOMIC_HASH_SIZE_SHIFT, __builtin_ffs(ATOMIC_HASH_SIZE)-1);
> +	DEFINE(ASM_ATOMIC_HASH_ENTRY_SHIFT, __builtin_ffs(sizeof(__atomic_hash[0]))-1);
> +#endif
> +
>  	return 0;
>  }
> diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
> index cb71f3d..878f42c 100644
> --- a/arch/parisc/kernel/setup.c
> +++ b/arch/parisc/kernel/setup.c
> @@ -128,6 +131,14 @@ void __init setup_arch(char **cmdline_p)
>  	printk(KERN_INFO "The 32-bit Kernel has started...\n");
>  #endif
>  
> +	/* Consistency check on the size and alignments of our spinlocks */
> +#ifdef CONFIG_SMP
> +	BUILD_BUG_ON(sizeof(arch_spinlock_t) != __PA_LDCW_ALIGNMENT);
> +	BUG_ON((unsigned long)&__atomic_hash[0] & (__PA_LDCW_ALIGNMENT-1));
> +	BUG_ON((unsigned long)&__atomic_hash[1] & (__PA_LDCW_ALIGNMENT-1));
> +#endif
> +	BUILD_BUG_ON((1<<L1_CACHE_SHIFT) != L1_CACHE_BYTES);
> +
>  	pdc_console_init();
>  
>  #ifdef CONFIG_64BIT
> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> index f5f9602..1f12418 100644
> --- a/arch/parisc/kernel/syscall.S
> +++ b/arch/parisc/kernel/syscall.S
> @@ -11,6 +11,7 @@
>  #include <asm/unistd.h>
>  #include <asm/errno.h>
>  #include <asm/page.h>
> +#include <asm/cache.h>
>  #include <asm/psw.h>
>  #include <asm/thread_info.h>
>  #include <asm/assembly.h>
> @@ -47,18 +48,17 @@ ENTRY(linux_gateway_page)
>  	KILL_INSN
>  	.endr
>  
> -	/* ADDRESS 0xb0 to 0xb4, lws uses 1 insns for entry */
> +	/* ADDRESS 0xb0 to 0xb8, lws uses two insns for entry */
>  	/* Light-weight-syscall entry must always be located at 0xb0 */
>  	/* WARNING: Keep this number updated with table size changes */
>  #define __NR_lws_entries (2)
>  
>  lws_entry:
> -	/* Unconditional branch to lws_start, located on the 
> -	   same gateway page */
> -	b,n	lws_start
> +	gate	lws_start, %r0		/* increase privilege */
> +	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
>  
> -	/* Fill from 0xb4 to 0xe0 */
> -	.rept 11
> +	/* Fill from 0xb8 to 0xe0 */
> +	.rept 10
>  	KILL_INSN
>  	.endr
>  
> @@ -423,9 +423,6 @@ tracesys_sigexit:
>  
>  	*********************************************************/
>  lws_start:
> -	/* Gate and ensure we return to userspace */
> -	gate	.+8, %r0
> -	depi	3, 31, 2, %r31	/* Ensure we return to userspace */
>  
>  #ifdef CONFIG_64BIT
>  	/* FIXME: If we are a 64-bit kernel just
> @@ -473,7 +470,7 @@ lws_exit:
>  	/* now reset the lowest bit of sp if it was set */
>  	xor	%r30,%r1,%r30
>  #endif
> -	be,n	0(%sr3, %r31)
> +	be,n	0(%sr7, %r31)
>  
>  
>  	
> @@ -530,18 +527,17 @@ lws_compare_and_swap32:
>  
>  lws_compare_and_swap:
>  #ifdef CONFIG_SMP
> -	/* Load start of lock table */
> -	ldil	L%lws_lock_start, %r20
> -	ldo	R%lws_lock_start(%r20), %r28
> +	/* Calculate lock table entry via ATOMIC_HASH(%r26) */
> +	ldil	L%__atomic_user_hash, %r20
> +	ldo	R%__atomic_user_hash(%r20), %r28
>  
> -	/* Extract four bits from r26 and hash lock (Bits 4-7) */
> -	extru  %r26, 27, 4, %r20
> +#ifdef CONFIG_64BIT
> +	extrd,u %r26, 63-L1_CACHE_SHIFT, ASM_ATOMIC_HASH_SIZE_SHIFT, %r20
> +#else
> +	extru	%r26, 31-L1_CACHE_SHIFT, ASM_ATOMIC_HASH_SIZE_SHIFT, %r20
> +#endif
> +	shladd,l %r20, ASM_ATOMIC_HASH_ENTRY_SHIFT, %r28, %r20
>  
> -	/* Find lock to use, the hash is either one of 0 to
> -	   15, multiplied by 16 (keep it 16-byte aligned)
> -	   and add to the lock table offset. */
> -	shlw	%r20, 4, %r20
> -	add	%r20, %r28, %r20
>  
>  # if ENABLE_LWS_DEBUG
>  	/*	
> @@ -672,31 +668,6 @@ ENTRY(sys_call_table64)
>  END(sys_call_table64)
>  #endif
>  
> -#ifdef CONFIG_SMP
> -	/*
> -		All light-weight-syscall atomic operations 
> -		will use this set of locks 
> -
> -		NOTE: The lws_lock_start symbol must be
> -		at least 16-byte aligned for safe use
> -		with ldcw.
> -	*/
> -	.section .data
> -	.align	PAGE_SIZE
> -ENTRY(lws_lock_start)
> -	/* lws locks */
> -	.rept 16
> -	/* Keep locks aligned at 16-bytes */
> -	.word 1
> -	.word 0 
> -	.word 0
> -	.word 0
> -	.endr
> -END(lws_lock_start)
> -	.previous
> -#endif
> -/* CONFIG_SMP for lws_lock_start */
> -
>  .end
>  
>  
> diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c
> index 353963d..bae6a86 100644
> --- a/arch/parisc/lib/bitops.c
> +++ b/arch/parisc/lib/bitops.c
> @@ -15,6 +15,9 @@
>  arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
>  	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
>  };
> +arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
> +	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
> +};
>  #endif
>  
>  #ifdef CONFIG_64BIT
> diff --git a/kernel/fork.c b/kernel/fork.c
> index f88bd98..108b1ed 100644
> --- a/kernel/fork.c
> +++ b/kernel/fork.c
> @@ -608,7 +608,10 @@ void mm_release(struct task_struct *tsk, struct mm_struct *mm)
>  			 * We don't check the error code - if userspace has
>  			 * not set up a proper pointer then tough luck.
>  			 */
> +			unsigned long flags;
> +			_atomic_spin_lock_irqsave_user(tsk->clear_child_tid, flags);
>  			put_user(0, tsk->clear_child_tid);
> +			_atomic_spin_unlock_irqrestore_user(tsk->clear_child_tid, flags);
>  			sys_futex(tsk->clear_child_tid, FUTEX_WAKE,
>  					1, NULL, NULL, 0);
>  		}
> @@ -1432,8 +1435,12 @@ long do_fork(unsigned long clone_flags,
>  
>  		nr = task_pid_vnr(p);
>  
> -		if (clone_flags & CLONE_PARENT_SETTID)
> +		if (clone_flags & CLONE_PARENT_SETTID) {
> +			unsigned long flags;
> +			_atomic_spin_lock_irqsave_user(parent_tidptr, flags);
>  			put_user(nr, parent_tidptr);
> +			_atomic_spin_unlock_irqrestore_user(parent_tidptr, flags);
> +		}
>  
>  		if (clone_flags & CLONE_VFORK) {
>  			p->vfork_done = &vfork;


-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:42 2018
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Subject: Re: futex wait failure
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> The c3750 completed a full GCC build but there were again problems running
> the testsuite.  For example,
> 
> Core was generated by `expect -- /usr/share/dejagnu/runtest.exp --tool gcc'.
> Program terminated with signal 11, Segmentation fault.
> #0  0x409fa258 in ?? () from /usr/lib/libtcl8.5.so.0
> (gdb) bt
> #0  0x409fa258 in ?? () from /usr/lib/libtcl8.5.so.0
> #1  0x402600a0 in start_thread (arg=0x416a4480) at pthread_create.c:302
> #2  0x40e25874 in clone ()
>     at ../ports/sysdeps/unix/sysv/linux/hppa/nptl/../clone.S:166
> #3  0x00000000 in ?? ()
> 
> This looks like the minifail clone bug.  On the otherhand, minifail doesn't
> seem to be failing.

I reverted Helge's patch and still get the same fault, so it didn't
introduce the problem.

Prior to 2.6.33, I was running 2.6.31.12 with essentially the same config.
The libc6 update to 2.10.2-6 changed things on the c3750.  Prior to the
update, expect would hang several times running the acats testsuite.  After
the update, this was fixed.  However, the above problem was introduced,
or became more frequent.

I have the feeling that Helge's patch helps (possible resolves) the
minifail bug.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, 07 Mar 2010, John David Anglin wrote:

> I have the feeling that Helge's patch helps (possible resolves) the
> minifail bug.

With further testing, I find that the patch doesn't resolve the minifail
fails on my c3750.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Wed, Mar 10, 2010 at 10:20:49PM -0500, John David Anglin wrote:
> > I have the feeling that Helge's patch helps (possible resolves) the
> > minifail bug.
> 
> With further testing, I find that the patch doesn't resolve the minifail
> fails on my c3750.
> 

Bummer. :(
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Thu, 11 Mar 2010, Kyle McMartin wrote:

> On Wed, Mar 10, 2010 at 10:20:49PM -0500, John David Anglin wrote:
> > > I have the feeling that Helge's patch helps (possible resolves) the
> > > minifail bug.
> > 
> > With further testing, I find that the patch doesn't resolve the minifail
> > fails on my c3750.
> > 
> 
> Bummer. :(

Yes.

I am 95% certain that the bug has to do with the clone implementation
and scheduling.  I have attached another version of the minifail test.
The loops after the fork and pthread_create calls are to isolate these
syscalls.  Typically, I see something like:

Core was generated by `./minifail9s'.
Program terminated with signal 11, Segmentation fault.
#0  0x00000000 in ?? ()
(gdb) info thread
  2 Thread 11537  pure_test () at minifail9.cpp:51
* 1 Thread 11538  0x00000000 in ?? ()

Thread 2 is in the pure_test loop after the fork call.

The cause of the failure is not at all obvious to me but I am a
bit concerned about the sys_clone implementation.  Is it possible
that the struct pt_regs gets clobbered?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: futex wait failure
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On Thu, 11 Mar 2010, John David Anglin wrote:

> I am 95% certain that the bug has to do with the clone implementation
> and scheduling.  I have attached another version of the minifail test.
> The loops after the fork and pthread_create calls are to isolate these
> syscalls.  Typically, I see something like:

Attached.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--YiEDa0DAkWCtVeE4
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Content-Disposition: attachment; filename="minifail9.cpp"

#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

/*
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=561203

  clone(child_stack=0x4088d040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x4108c4e8, tls=0x4108c900, child_tidptr=0x4108c4e8) = 14819
[pid 14819] set_robust_list(0x4108c4f0, 0xc) = 0
[pid 14818] clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x40002028) = 14820

 g++  minifail.cpp -o minifail -O0 -pthread -g

 i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail; done;

 */

static volatile int run = 1;

void* thread_run(void* arg) {
	static long status;
	int i;
        
	run = 1;
	pthread_yield();
	for (i = 10000000; i; i--)
	   continue;
	write(1,"Thread OK.\n",11);
	return (void *)&status;
}

int pure_test() {
	int i;
	pthread_t thread;
	pthread_create(&thread, NULL, thread_run, NULL);

	while (!run)
	  pthread_yield();
	switch (fork()) {
		case -1:
			perror("fork() failed");
		case 0:
			write(1,"Child OK.\n",10);
			_exit(0);
		default:
			break;
		
	}
	pthread_yield();
	for (i = 20000000; i; i--)
	  continue;
	write(1,"Fork done\n",10);
	pthread_join(thread, NULL);
	return 0;
}

int main(int argc, char** argv) {
	return pure_test();
}

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From - Thu Nov 08 21:05:43 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: futex wait failure
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On Thu, 11 Mar 2010, John David Anglin wrote:

> I am 95% certain that the bug has to do with the clone implementation
> and scheduling.  I have attached another version of the minifail test.
> The loops after the fork and pthread_create calls are to isolate these
> syscalls.  Typically, I see something like:

Here's another idea.  In entry.S, there are some tricky tests to determine
whether to do signals and reschedule.  Based on testing, I'm not sure
that cr30 is always valid (e.g., external interrupt at boot) when we get to
intr_check_resched and intr_check_sig.

The other issue is r16.  I'm thinking we may need to reload r16 as the
context may change if we schedule, etc.  If this checking is broken, it
would break the LWS assumptions.

Thoughts?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:43 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: futex wait failure
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On Fri, 12 Mar 2010, John David Anglin wrote:

> The other issue is r16.  I'm thinking we may need to reload r16 as the
> context may change if we schedule, etc.  If this checking is broken, it
> would break the LWS assumptions.

This theory is shotdown.  The patch below possibly helps a bit but it
doesn't resolve the minifail bug.  The intention of the last couple of
hunks is to return to the right place if cr30 changes as a result of
scheduling.

With more debugging, it seems that this is a clone mmap copy issue.
Normally, the forked child doesn't see any non-zero data in the
stack region allocated by pthread_create.  However, if it does, 
the thread invariably dies and the stack region is corrupt after
the fork.

I guess I said this before ;(

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3a44f7f..820d6ca 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -758,6 +758,10 @@ ENTRY(__kernel_thread)
 
 	STREG	%r22, PT_GR22(%r1)	/* save r22 (arg5) */
 	copy	%r0, %r22		/* user_tid */
+	copy	%r0, %r21		/* child_tid */
+#else
+	stw	%r0, -52(%r30)	     	/* user_tid */
+	stw	%r0, -56(%r30)	     	/* child_tid */
 #endif
 	STREG	%r26, PT_GR26(%r1)  /* Store function & argument for child */
 	STREG	%r25, PT_GR25(%r1)
@@ -765,7 +769,7 @@ ENTRY(__kernel_thread)
 	ldo	CLONE_VM(%r26), %r26   /* Force CLONE_VM since only init_mm */
 	or	%r26, %r24, %r26      /* will have kernel mappings.	 */
 	ldi	1, %r25			/* stack_start, signals kernel thread */
-	stw	%r0, -52(%r30)	     	/* user_tid */
+	ldi	0, %r23			/* child_stack_size */
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
@@ -972,7 +976,10 @@ intr_check_sig:
 	BL	do_notify_resume,%r2
 	copy	%r16, %r26			/* struct pt_regs *regs */
 
-	b,n	intr_check_sig
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 intr_restore:
 	copy            %r16,%r29
@@ -1026,14 +1033,12 @@ intr_do_resched:
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	ldil	L%intr_check_sig, %r2
-#ifndef CONFIG_64BIT
-	b	schedule
-#else
-	load32	schedule, %r20
-	bv	%r0(%r20)
-#endif
-	ldo	R%intr_check_sig(%r2), %r2
+	BL	schedule,%r2
+	nop
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 	/* preempt the current task on returning to kernel
 	 * mode from an interrupt, iff need_resched is set,
--
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From - Thu Nov 08 21:05:43 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: futex wait failure
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On Sun, Mar 14, 2010 at 9:10 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> On Fri, 12 Mar 2010, John David Anglin wrote:
>
>> The other issue is r16. =A0I'm thinking we may need to reload r16 as=
 the
>> context may change if we schedule, etc. =A0If this checking is broke=
n, it
>> would break the LWS assumptions.
>
> This theory is shotdown. =A0The patch below possibly helps a bit but =
it
> doesn't resolve the minifail bug. =A0The intention of the last couple=
 of
> hunks is to return to the right place if cr30 changes as a result of
> scheduling.

Thanks for testing this out.

> With more debugging, it seems that this is a clone mmap copy issue.
> Normally, the forked child doesn't see any non-zero data in the
> stack region allocated by pthread_create. =A0However, if it does,
> the thread invariably dies and the stack region is corrupt after
> the fork.
>
> I guess I said this before ;(

After some of my own testing I think this is all MMU related, but I
can't prove it yet. I'm pouring through as much kernel code as I can
right now to determine what is going wrong at the time of the clone,
and I see at least one bug that I'm investigating regarding return
addresses.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:43 2018
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From: "Justin P. Mattock" <justinmattock@gmail.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.arm.kernel,gmane.linux.redhat.security.audit,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.comp.security.selinux,gmane.linux.ports.sparc,gmane.linux.network,gmane.linux.kernel
Subject: [PATCH] Cosmetic:Partially remove deprecated __initcall() and change to
Date: Fri, 19 Mar 2010 12:51:31 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2689>

After doing some things on a small issue,
I noticed through web surfing, that there were patches
submitted pertaining that __initcall is deprecated,
and device_initcall should be used.

So as a change of subject(since what I was looking at
was frustrating me),I decided to grep the whole tree
and make the change(partially).

Currently I'm running this patch on my system, kernel compiles
without any errors or warnings.(thought there would be a speed increase
but didn't see much(if any)).
Biggest problem I have though is testing this on other hardware types
(I only have a macbook,and an iMac).
So please if you have the access to other arch/hardware types please
test.

Now what I mean by partially is the __initcall function is still
there, so(if any) userspace apps/libs depend on this it's there
so they dont break and/or any other subsystem, that needs time
to make the changes.

Note:
the remaining files that still have __initcall in them are:
(according to grep)

arch/um/include/shared/init.h
include/linux/init.h
scripts/checkpatch.pl

either I or somebody else, can change this(although a bit
concerned about breaking things).

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
---
 Documentation/DocBook/kernel-hacking.tmpl    |    4 ++--
 Documentation/cpu-freq/cpu-drivers.txt       |    2 +-
 Documentation/kbuild/makefiles.txt           |    2 +-
 arch/arm/mach-at91/leds.c                    |    2 +-
 arch/arm/mach-clps711x/p720t.c               |    2 +-
 arch/arm/mach-ebsa110/leds.c                 |    2 +-
 arch/arm/mach-footbridge/cats-hw.c           |    2 +-
 arch/arm/mach-footbridge/ebsa285-leds.c      |    2 +-
 arch/arm/mach-footbridge/netwinder-hw.c      |    2 +-
 arch/arm/mach-footbridge/netwinder-leds.c    |    2 +-
 arch/arm/mach-ks8695/leds.c                  |    2 +-
 arch/arm/mach-omap1/leds.c                   |    2 +-
 arch/arm/mach-omap1/pm.c                     |    2 +-
 arch/arm/mach-orion5x/db88f5281-setup.c      |    2 +-
 arch/arm/mach-orion5x/rd88f5182-setup.c      |    2 +-
 arch/arm/mach-pxa/generic.c                  |    2 +-
 arch/arm/mach-pxa/pxa25x.c                   |    2 +-
 arch/arm/mach-shark/leds.c                   |    2 +-
 arch/blackfin/kernel/bfin_gpio.c             |    2 +-
 arch/blackfin/mach-common/pm.c               |    2 +-
 arch/cris/arch-v10/kernel/debugport.c        |    2 +-
 arch/cris/arch-v10/kernel/fasttimer.c        |    2 +-
 arch/cris/arch-v10/mm/init.c                 |    2 +-
 arch/cris/arch-v32/kernel/fasttimer.c        |    2 +-
 arch/cris/arch-v32/kernel/pinmux.c           |    2 +-
 arch/cris/arch-v32/kernel/signal.c           |    2 +-
 arch/cris/arch-v32/mach-a3/io.c              |    2 +-
 arch/cris/arch-v32/mach-a3/pinmux.c          |    2 +-
 arch/cris/arch-v32/mach-fs/io.c              |    2 +-
 arch/cris/arch-v32/mach-fs/pinmux.c          |    2 +-
 arch/cris/kernel/profile.c                   |    2 +-
 arch/cris/kernel/time.c                      |    2 +-
 arch/cris/kernel/traps.c                     |    2 +-
 arch/frv/kernel/gdb-stub.c                   |    2 +-
 arch/frv/kernel/pm-mb93093.c                 |    2 +-
 arch/frv/kernel/pm.c                         |    2 +-
 arch/frv/kernel/sysctl.c                     |    2 +-
 arch/h8300/kernel/gpio.c                     |    2 +-
 arch/ia64/hp/sim/simeth.c                    |    2 +-
 arch/ia64/hp/sim/simserial.c                 |    2 +-
 arch/ia64/kernel/audit.c                     |    2 +-
 arch/ia64/kernel/crash.c                     |    2 +-
 arch/ia64/kernel/cyclone.c                   |    2 +-
 arch/ia64/kernel/perfmon.c                   |    2 +-
 arch/ia64/kernel/setup.c                     |    2 +-
 arch/ia64/kernel/uncached.c                  |    2 +-
 arch/ia64/kernel/unwind.c                    |    2 +-
 arch/ia64/mm/init.c                          |    2 +-
 arch/mips/Makefile                           |    2 +-
 arch/mips/kernel/unaligned.c                 |    2 +-
 arch/mips/lasat/sysctl.c                     |    2 +-
 arch/mips/math-emu/cp1emu.c                  |    2 +-
 arch/mips/nxp/pnx8550/common/proc.c          |    2 +-
 arch/mips/sibyte/sb1250/bus_watcher.c        |    2 +-
 arch/mn10300/kernel/gdb-stub.c               |    2 +-
 arch/mn10300/kernel/mn10300-serial.c         |    2 +-
 arch/mn10300/kernel/profile.c                |    2 +-
 arch/parisc/kernel/pci-dma.c                 |    2 +-
 arch/parisc/kernel/pdc_chassis.c             |    2 +-
 arch/powerpc/kernel/audit.c                  |    2 +-
 arch/powerpc/kernel/idle.c                   |    2 +-
 arch/powerpc/kernel/irq.c                    |    2 +-
 arch/powerpc/kernel/proc_powerpc.c           |    2 +-
 arch/powerpc/kernel/prom.c                   |    4 ++--
 arch/powerpc/kernel/rtas-proc.c              |    2 +-
 arch/powerpc/kernel/rtasd.c                  |    2 +-
 arch/powerpc/kernel/sysfs.c                  |    2 +-
 arch/powerpc/kernel/tau_6xx.c                |    2 +-
 arch/powerpc/kernel/vio.c                    |    2 +-
 arch/powerpc/platforms/iseries/lpevents.c    |    2 +-
 arch/powerpc/platforms/iseries/mf.c          |    2 +-
 arch/powerpc/platforms/iseries/proc.c        |    2 +-
 arch/powerpc/platforms/iseries/viopath.c     |    2 +-
 arch/powerpc/platforms/pseries/eeh.c         |    2 +-
 arch/powerpc/platforms/pseries/hvCall_inst.c |    2 +-
 arch/powerpc/platforms/pseries/power.c       |    2 +-
 arch/powerpc/platforms/pseries/ras.c         |    2 +-
 arch/powerpc/platforms/pseries/reconfig.c    |    2 +-
 arch/powerpc/xmon/xmon.c                     |    2 +-
 arch/s390/appldata/appldata_base.c           |    2 +-
 arch/s390/kernel/audit.c                     |    2 +-
 arch/s390/kernel/compat_exec_domain.c        |    2 +-
 arch/s390/kernel/ipl.c                       |    2 +-
 arch/s390/kernel/topology.c                  |    2 +-
 arch/sh/boards/board-edosk7760.c             |    2 +-
 arch/sh/boards/board-sh7785lcr.c             |    2 +-
 arch/sh/boards/mach-cayman/setup.c           |    2 +-
 arch/sh/boards/mach-landisk/setup.c          |    2 +-
 arch/sh/boards/mach-r2d/setup.c              |    2 +-
 arch/sh/boards/mach-sdk7786/setup.c          |    2 +-
 arch/sh/boards/mach-se/7206/setup.c          |    2 +-
 arch/sh/boards/mach-se/7751/setup.c          |    2 +-
 arch/sh/boards/mach-sh03/setup.c             |    2 +-
 arch/sh/kernel/traps_64.c                    |    2 +-
 arch/sparc/kernel/apc.c                      |    2 +-
 arch/sparc/kernel/audit.c                    |    2 +-
 arch/sparc/kernel/mdesc.c                    |    2 +-
 arch/sparc/kernel/pmc.c                      |    2 +-
 arch/um/drivers/mconsole_kern.c              |    8 ++++----
 arch/um/drivers/net_kern.c                   |    2 +-
 arch/um/drivers/stderr_console.c             |    2 +-
 arch/um/drivers/ubd_kern.c                   |    4 ++--
 arch/um/kernel/exitcode.c                    |    2 +-
 arch/um/kernel/physmem.c                     |    2 +-
 arch/um/os-Linux/aio.c                       |    4 ++--
 arch/um/os-Linux/skas/mem.c                  |    2 +-
 arch/um/os-Linux/skas/process.c              |    2 +-
 arch/um/os-Linux/umid.c                      |    2 +-
 arch/um/sys-i386/tls.c                       |    2 +-
 arch/x86/kernel/audit_64.c                   |    2 +-
 arch/x86/kernel/tlb_uv.c                     |    4 ++--
 arch/x86/kernel/vsyscall_64.c                |    4 ++--
 arch/x86/mm/dump_pagetables.c                |    2 +-
 arch/x86/vdso/vdso32-setup.c                 |    4 ++--
 arch/x86/vdso/vma.c                          |    2 +-
 arch/xtensa/platforms/iss/console.c          |    2 +-
 drivers/net/arm/am79c961a.c                  |    2 +-
 drivers/net/hamradio/baycom_epp.c            |    1 +
 drivers/net/hamradio/baycom_par.c            |    1 +
 drivers/net/hamradio/baycom_ser_fdx.c        |    1 +
 drivers/net/hamradio/baycom_ser_hdx.c        |    1 +
 drivers/s390/char/sclp_cmd.c                 |    2 +-
 drivers/s390/char/sclp_config.c              |    2 +-
 drivers/s390/char/sclp_cpi_sys.c             |    2 +-
 drivers/s390/char/sclp_vt220.c               |    2 +-
 drivers/s390/cio/blacklist.c                 |    2 +-
 drivers/staging/rtl8192u/ieee80211/api.c     |    2 +-
 fs/aio.c                                     |    2 +-
 fs/compat_ioctl.c                            |    2 +-
 ipc/ipc_sysctl.c                             |    2 +-
 ipc/mqueue.c                                 |    2 +-
 ipc/util.c                                   |    2 +-
 kernel/audit.c                               |    2 +-
 kernel/audit_tree.c                          |    2 +-
 kernel/dma.c                                 |    2 +-
 kernel/futex.c                               |    2 +-
 kernel/lockdep_proc.c                        |    2 +-
 kernel/pid_namespace.c                       |    2 +-
 kernel/posix-cpu-timers.c                    |    2 +-
 kernel/posix-timers.c                        |    2 +-
 kernel/resource.c                            |    2 +-
 kernel/sched_debug.c                         |    2 +-
 kernel/time/timer_list.c                     |    2 +-
 kernel/time/timer_stats.c                    |    2 +-
 kernel/tracepoint.c                          |    2 +-
 kernel/utsname_sysctl.c                      |    2 +-
 lib/audit.c                                  |    2 +-
 lib/debugobjects.c                           |    2 +-
 mm/bounce.c                                  |    2 +-
 mm/memory.c                                  |    2 +-
 mm/mm_init.c                                 |    2 +-
 mm/slab.c                                    |    2 +-
 mm/slub.c                                    |    2 +-
 mm/swapfile.c                                |    2 +-
 net/ipv4/syncookies.c                        |    2 +-
 net/ipv4/sysctl_net_ipv4.c                   |    2 +-
 security/keys/proc.c                         |    2 +-
 security/selinux/hooks.c                     |    2 +-
 security/selinux/netif.c                     |    2 +-
 security/selinux/netlink.c                   |    2 +-
 security/selinux/netnode.c                   |    2 +-
 security/selinux/netport.c                   |    2 +-
 security/selinux/selinuxfs.c                 |    2 +-
 security/selinux/ss/services.c               |    2 +-
 security/smack/smackfs.c                     |    2 +-
 sound/last.c                                 |    2 +-
 166 files changed, 176 insertions(+), 172 deletions(-)

diff --git a/Documentation/DocBook/kernel-hacking.tmpl b/Documentation/DocBook/kernel-hacking.tmpl
index 7b3f493..a682709 100644
--- a/Documentation/DocBook/kernel-hacking.tmpl
+++ b/Documentation/DocBook/kernel-hacking.tmpl
@@ -734,7 +734,7 @@ printk(KERN_INFO "my ip: %pI4\n", &amp;ipaddress);
   </sect1>
 
   <sect1 id="routines-init-again">
-   <title><function>__initcall()</function>/<function>module_init()</function>
+   <title><function>device_initcall()</function>/<function>module_init()</function>
     <filename class="headerfile">include/linux/init.h</filename></title>
    <para>
     Many parts of the kernel are well served as a module
@@ -750,7 +750,7 @@ printk(KERN_INFO "my ip: %pI4\n", &amp;ipaddress);
     function is to be called at module insertion time (if the file is
     compiled as a module), or at boot time: if the file is not
     compiled as a module the <function>module_init()</function> macro
-    becomes equivalent to <function>__initcall()</function>, which
+    becomes equivalent to <function>device_initcall()</function>, which
     through linker magic ensures that the function is called on boot.
    </para>
 
diff --git a/Documentation/cpu-freq/cpu-drivers.txt b/Documentation/cpu-freq/cpu-drivers.txt
index 6c30e93..12bb6e4 100644
--- a/Documentation/cpu-freq/cpu-drivers.txt
+++ b/Documentation/cpu-freq/cpu-drivers.txt
@@ -41,7 +41,7 @@ on what is necessary:
 1.1 Initialization
 ------------------
 
-First of all, in an __initcall level 7 (module_init()) or later
+First of all, in an device_initcall level 7 (module_init()) or later
 function check whether this kernel runs on the right CPU and the right
 chipset. If so, register a struct cpufreq_driver with the CPUfreq core
 using cpufreq_register_driver()
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 71c602d..645ea71 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -159,7 +159,7 @@ more details, with real examples.
 	built-in.o and succeeding instances will be ignored.
 
 	Link order is significant, because certain functions
-	(module_init() / __initcall) will be called during boot in the
+	(module_init() / device_initcall) will be called during boot in the
 	order they appear. So keep in mind that changing the link
 	order may e.g. change the order in which your SCSI
 	controllers are detected, and thus your disks are renumbered.
diff --git a/arch/arm/mach-at91/leds.c b/arch/arm/mach-at91/leds.c
index 0415a83..08e342d 100644
--- a/arch/arm/mach-at91/leds.c
+++ b/arch/arm/mach-at91/leds.c
@@ -179,7 +179,7 @@ static int __init leds_init(void)
 	return 0;
 }
 
-__initcall(leds_init);
+device_initcall(leds_init);
 
 
 void __init at91_init_leds(u8 cpu_led, u8 timer_led)
diff --git a/arch/arm/mach-clps711x/p720t.c b/arch/arm/mach-clps711x/p720t.c
index 0d94a30..1047b23 100644
--- a/arch/arm/mach-clps711x/p720t.c
+++ b/arch/arm/mach-clps711x/p720t.c
@@ -121,5 +121,5 @@ static int p720t_hw_init(void)
 	return 0;
 }
 
-__initcall(p720t_hw_init);
+device_initcall(p720t_hw_init);
 
diff --git a/arch/arm/mach-ebsa110/leds.c b/arch/arm/mach-ebsa110/leds.c
index 6a6ea57..8b57907 100644
--- a/arch/arm/mach-ebsa110/leds.c
+++ b/arch/arm/mach-ebsa110/leds.c
@@ -48,4 +48,4 @@ static int __init leds_init(void)
 	return 0;
 }
 
-__initcall(leds_init);
+device_initcall(leds_init);
diff --git a/arch/arm/mach-footbridge/cats-hw.c b/arch/arm/mach-footbridge/cats-hw.c
index 1b996b2..1b616e5 100644
--- a/arch/arm/mach-footbridge/cats-hw.c
+++ b/arch/arm/mach-footbridge/cats-hw.c
@@ -69,7 +69,7 @@ static int __init cats_hw_init(void)
 	return 0;
 }
 
-__initcall(cats_hw_init);
+device_initcall(cats_hw_init);
 
 /*
  * CATS uses soft-reboot by default, since
diff --git a/arch/arm/mach-footbridge/ebsa285-leds.c b/arch/arm/mach-footbridge/ebsa285-leds.c
index 4e10090..f162fb2 100644
--- a/arch/arm/mach-footbridge/ebsa285-leds.c
+++ b/arch/arm/mach-footbridge/ebsa285-leds.c
@@ -136,4 +136,4 @@ static int __init leds_init(void)
 	return 0;
 }
 
-__initcall(leds_init);
+device_initcall(leds_init);
diff --git a/arch/arm/mach-footbridge/netwinder-hw.c b/arch/arm/mach-footbridge/netwinder-hw.c
index ac7ffa6..090b4cf 100644
--- a/arch/arm/mach-footbridge/netwinder-hw.c
+++ b/arch/arm/mach-footbridge/netwinder-hw.c
@@ -623,7 +623,7 @@ static int __init nw_hw_init(void)
 	return 0;
 }
 
-__initcall(nw_hw_init);
+device_initcall(nw_hw_init);
 
 /*
  * Older NeTTroms either do not provide a parameters
diff --git a/arch/arm/mach-footbridge/netwinder-leds.c b/arch/arm/mach-footbridge/netwinder-leds.c
index 00269fe..f504682 100644
--- a/arch/arm/mach-footbridge/netwinder-leds.c
+++ b/arch/arm/mach-footbridge/netwinder-leds.c
@@ -136,4 +136,4 @@ static int __init leds_init(void)
 	return 0;
 }
 
-__initcall(leds_init);
+device_initcall(leds_init);
diff --git a/arch/arm/mach-ks8695/leds.c b/arch/arm/mach-ks8695/leds.c
index 184ef74..97c3828 100644
--- a/arch/arm/mach-ks8695/leds.c
+++ b/arch/arm/mach-ks8695/leds.c
@@ -90,4 +90,4 @@ static int __init leds_init(void)
 	return 0;
 }
 
-__initcall(leds_init);
+device_initcall(leds_init);
diff --git a/arch/arm/mach-omap1/leds.c b/arch/arm/mach-omap1/leds.c
index 277f356..bd447fa 100644
--- a/arch/arm/mach-omap1/leds.c
+++ b/arch/arm/mach-omap1/leds.c
@@ -63,4 +63,4 @@ omap_leds_init(void)
 	return 0;
 }
 
-__initcall(omap_leds_init);
+device_initcall(omap_leds_init);
diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index b1d3f9f..fda5f60 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -724,4 +724,4 @@ static int __init omap_pm_init(void)
 
 	return 0;
 }
-__initcall(omap_pm_init);
+device_initcall(omap_pm_init);
diff --git a/arch/arm/mach-orion5x/db88f5281-setup.c b/arch/arm/mach-orion5x/db88f5281-setup.c
index d318bea..0c76893 100644
--- a/arch/arm/mach-orion5x/db88f5281-setup.c
+++ b/arch/arm/mach-orion5x/db88f5281-setup.c
@@ -197,7 +197,7 @@ static int __init db88f5281_7seg_init(void)
 	return 0;
 }
 
-__initcall(db88f5281_7seg_init);
+device_initcall(db88f5281_7seg_init);
 
 /*****************************************************************************
  * PCI
diff --git a/arch/arm/mach-orion5x/rd88f5182-setup.c b/arch/arm/mach-orion5x/rd88f5182-setup.c
index a04f9e4..43e9a49 100644
--- a/arch/arm/mach-orion5x/rd88f5182-setup.c
+++ b/arch/arm/mach-orion5x/rd88f5182-setup.c
@@ -130,7 +130,7 @@ static int __init rd88f5182_dbgled_init(void)
 	return 0;
 }
 
-__initcall(rd88f5182_dbgled_init);
+device_initcall(rd88f5182_dbgled_init);
 
 #endif
 
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c
index 3126a35..1d44a9a 100644
--- a/arch/arm/mach-pxa/generic.c
+++ b/arch/arm/mach-pxa/generic.c
@@ -12,7 +12,7 @@
  * published by the Free Software Foundation.
  *
  * Since this file should be linked before any other machine specific file,
- * the __initcall() here will be executed first.  This serves as default
+ * the device_initcall() here will be executed first.  This serves as default
  * initialization stuff for PXA machines which can be overridden later if
  * need be.
  */
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 0b9ad30..b0df545 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -12,7 +12,7 @@
  * published by the Free Software Foundation.
  *
  * Since this file should be linked before any other machine specific file,
- * the __initcall() here will be executed first.  This serves as default
+ * the device_initcall() here will be executed first.  This serves as default
  * initialization stuff for PXA machines which can be overridden later if
  * need be.
  */
diff --git a/arch/arm/mach-shark/leds.c b/arch/arm/mach-shark/leds.c
index c9e32de..511693a 100644
--- a/arch/arm/mach-shark/leds.c
+++ b/arch/arm/mach-shark/leds.c
@@ -163,4 +163,4 @@ static int __init leds_init(void)
 	return 0;
 }
 
-__initcall(leds_init);
+device_initcall(leds_init);
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index a174596..bc5ba54 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -1285,7 +1285,7 @@ static __init int gpio_register_proc(void)
 		proc_gpio->read_proc = gpio_proc_read;
 	return proc_gpio != NULL;
 }
-__initcall(gpio_register_proc);
+device_initcall(gpio_register_proc);
 #endif
 
 #ifdef CONFIG_GPIOLIB
diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c
index 8837be4..dc36d3a 100644
--- a/arch/blackfin/mach-common/pm.c
+++ b/arch/blackfin/mach-common/pm.c
@@ -266,4 +266,4 @@ static int __init bfin_pm_init(void)
 	return 0;
 }
 
-__initcall(bfin_pm_init);
+device_initcall(bfin_pm_init);
diff --git a/arch/cris/arch-v10/kernel/debugport.c b/arch/cris/arch-v10/kernel/debugport.c
index 99851ba..0348977 100644
--- a/arch/cris/arch-v10/kernel/debugport.c
+++ b/arch/cris/arch-v10/kernel/debugport.c
@@ -564,4 +564,4 @@ init_etrax_debug(void)
 #endif
 	return 0;
 }
-__initcall(init_etrax_debug);
+device_initcall(init_etrax_debug);
diff --git a/arch/cris/arch-v10/kernel/fasttimer.c b/arch/cris/arch-v10/kernel/fasttimer.c
index 5ff08a8..b991462 100644
--- a/arch/cris/arch-v10/kernel/fasttimer.c
+++ b/arch/cris/arch-v10/kernel/fasttimer.c
@@ -879,4 +879,4 @@ int fast_timer_init(void)
   }
 	return 0;
 }
-__initcall(fast_timer_init);
+device_initcall(fast_timer_init);
diff --git a/arch/cris/arch-v10/mm/init.c b/arch/cris/arch-v10/mm/init.c
index baa746c..908d829 100644
--- a/arch/cris/arch-v10/mm/init.c
+++ b/arch/cris/arch-v10/mm/init.c
@@ -217,7 +217,7 @@ __init init_ioremap(void)
 	return 0;
 }
 
-__initcall(init_ioremap);
+device_initcall(init_ioremap);
 
 /* Helper function for the two below */
 
diff --git a/arch/cris/arch-v32/kernel/fasttimer.c b/arch/cris/arch-v32/kernel/fasttimer.c
index 111caa1..221bcea 100644
--- a/arch/cris/arch-v32/kernel/fasttimer.c
+++ b/arch/cris/arch-v32/kernel/fasttimer.c
@@ -833,4 +833,4 @@ int fast_timer_init(void)
   }
 	return 0;
 }
-__initcall(fast_timer_init);
+device_initcall(fast_timer_init);
diff --git a/arch/cris/arch-v32/kernel/pinmux.c b/arch/cris/arch-v32/kernel/pinmux.c
index f6f3637..c2dfcd3 100644
--- a/arch/cris/arch-v32/kernel/pinmux.c
+++ b/arch/cris/arch-v32/kernel/pinmux.c
@@ -226,4 +226,4 @@ crisv32_pinmux_dump(void)
 	}
 }
 
-__initcall(crisv32_pinmux_init);
+device_initcall(crisv32_pinmux_init);
diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c
index 372d0ca..d1e1b4e 100644
--- a/arch/cris/arch-v32/kernel/signal.c
+++ b/arch/cris/arch-v32/kernel/signal.c
@@ -672,4 +672,4 @@ cris_init_signal(void)
 	return 0;
 }
 
-__initcall(cris_init_signal);
+device_initcall(cris_init_signal);
diff --git a/arch/cris/arch-v32/mach-a3/io.c b/arch/cris/arch-v32/mach-a3/io.c
index 090ceb9..ea40a9b 100644
--- a/arch/cris/arch-v32/mach-a3/io.c
+++ b/arch/cris/arch-v32/mach-a3/io.c
@@ -95,7 +95,7 @@ static int __init crisv32_io_init(void)
 	return ret;
 }
 
-__initcall(crisv32_io_init);
+device_initcall(crisv32_io_init);
 
 int crisv32_io_get(struct crisv32_iopin *iopin,
 	unsigned int port, unsigned int pin)
diff --git a/arch/cris/arch-v32/mach-a3/pinmux.c b/arch/cris/arch-v32/mach-a3/pinmux.c
index 18648ef..14bbc78 100644
--- a/arch/cris/arch-v32/mach-a3/pinmux.c
+++ b/arch/cris/arch-v32/mach-a3/pinmux.c
@@ -383,4 +383,4 @@ crisv32_pinmux_dump(void)
 	}
 }
 
-__initcall(crisv32_pinmux_init);
+device_initcall(crisv32_pinmux_init);
diff --git a/arch/cris/arch-v32/mach-fs/io.c b/arch/cris/arch-v32/mach-fs/io.c
index a695866..fce8438 100644
--- a/arch/cris/arch-v32/mach-fs/io.c
+++ b/arch/cris/arch-v32/mach-fs/io.c
@@ -128,7 +128,7 @@ static int __init crisv32_io_init(void)
 	return ret;
 }
 
-__initcall(crisv32_io_init);
+device_initcall(crisv32_io_init);
 
 int crisv32_io_get(struct crisv32_iopin *iopin,
 		   unsigned int port, unsigned int pin)
diff --git a/arch/cris/arch-v32/mach-fs/pinmux.c b/arch/cris/arch-v32/mach-fs/pinmux.c
index 38f29ee..751f991 100644
--- a/arch/cris/arch-v32/mach-fs/pinmux.c
+++ b/arch/cris/arch-v32/mach-fs/pinmux.c
@@ -306,4 +306,4 @@ void crisv32_pinmux_dump(void)
 	}
 }
 
-__initcall(crisv32_pinmux_init);
+device_initcall(crisv32_pinmux_init);
diff --git a/arch/cris/kernel/profile.c b/arch/cris/kernel/profile.c
index 9aa5711..2472f3f 100644
--- a/arch/cris/kernel/profile.c
+++ b/arch/cris/kernel/profile.c
@@ -82,4 +82,4 @@ __init init_cris_profile(void)
 	return 0;
 }
 
-__initcall(init_cris_profile);
+device_initcall(init_cris_profile);
diff --git a/arch/cris/kernel/time.c b/arch/cris/kernel/time.c
index a05dd31..7554e96 100644
--- a/arch/cris/kernel/time.c
+++ b/arch/cris/kernel/time.c
@@ -160,4 +160,4 @@ __init init_udelay(void)
 	return 0;
 }
 
-__initcall(init_udelay);
+device_initcall(init_udelay);
diff --git a/arch/cris/kernel/traps.c b/arch/cris/kernel/traps.c
index 541efbf..8f77b68 100644
--- a/arch/cris/kernel/traps.c
+++ b/arch/cris/kernel/traps.c
@@ -177,7 +177,7 @@ oops_nmi_register(void)
 	return 0;
 }
 
-__initcall(oops_nmi_register);
+device_initcall(oops_nmi_register);
 
 #endif
 
diff --git a/arch/frv/kernel/gdb-stub.c b/arch/frv/kernel/gdb-stub.c
index 7ca8a6b..71d564c 100644
--- a/arch/frv/kernel/gdb-stub.c
+++ b/arch/frv/kernel/gdb-stub.c
@@ -2017,7 +2017,7 @@ static int __init gdbstub_postinit(void)
 	return 0;
 } /* end gdbstub_postinit() */
 
-__initcall(gdbstub_postinit);
+device_initcall(gdbstub_postinit);
 #endif
 
 /*****************************************************************************/
diff --git a/arch/frv/kernel/pm-mb93093.c b/arch/frv/kernel/pm-mb93093.c
index eaa7b58..3caa348 100644
--- a/arch/frv/kernel/pm-mb93093.c
+++ b/arch/frv/kernel/pm-mb93093.c
@@ -61,5 +61,5 @@ static int __init mb93093_pm_init(void)
 	return 0;
 }
 
-__initcall(mb93093_pm_init);
+device_initcall(mb93093_pm_init);
 
diff --git a/arch/frv/kernel/pm.c b/arch/frv/kernel/pm.c
index 5fa3889..b1aad48 100644
--- a/arch/frv/kernel/pm.c
+++ b/arch/frv/kernel/pm.c
@@ -348,6 +348,6 @@ static int __init pm_init(void)
 	return 0;
 }
 
-__initcall(pm_init);
+device_initcall(pm_init);
 
 #endif
diff --git a/arch/frv/kernel/sysctl.c b/arch/frv/kernel/sysctl.c
index 035516c..3280f8b 100644
--- a/arch/frv/kernel/sysctl.c
+++ b/arch/frv/kernel/sysctl.c
@@ -217,4 +217,4 @@ static int __init frv_sysctl_init(void)
 	return 0;
 }
 
-__initcall(frv_sysctl_init);
+device_initcall(frv_sysctl_init);
diff --git a/arch/h8300/kernel/gpio.c b/arch/h8300/kernel/gpio.c
index 6a25dd5..6ea7dd9 100644
--- a/arch/h8300/kernel/gpio.c
+++ b/arch/h8300/kernel/gpio.c
@@ -164,7 +164,7 @@ static __init int register_proc(void)
 	return proc_gpio != NULL;
 }
 
-__initcall(register_proc);
+device_initcall(register_proc);
 #endif
 
 void __init h8300_gpio_init(void)
diff --git a/arch/ia64/hp/sim/simeth.c b/arch/ia64/hp/sim/simeth.c
index 7e81966..e669908 100644
--- a/arch/ia64/hp/sim/simeth.c
+++ b/arch/ia64/hp/sim/simeth.c
@@ -524,4 +524,4 @@ set_multicast_list(struct net_device *dev)
 	printk(KERN_WARNING "%s: set_multicast_list called\n", dev->name);
 }
 
-__initcall(simeth_probe);
+device_initcall(simeth_probe);
diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c
index 2bef526..470c0a1 100644
--- a/arch/ia64/hp/sim/simserial.c
+++ b/arch/ia64/hp/sim/simserial.c
@@ -980,5 +980,5 @@ simrs_init (void)
 }
 
 #ifndef MODULE
-__initcall(simrs_init);
+device_initcall(simrs_init);
 #endif
diff --git a/arch/ia64/kernel/audit.c b/arch/ia64/kernel/audit.c
index 96a9d18..c7d79ba 100644
--- a/arch/ia64/kernel/audit.c
+++ b/arch/ia64/kernel/audit.c
@@ -57,4 +57,4 @@ static int __init audit_classes_init(void)
 	return 0;
 }
 
-__initcall(audit_classes_init);
+device_initcall(audit_classes_init);
diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c
index b942f40..07218af 100644
--- a/arch/ia64/kernel/crash.c
+++ b/arch/ia64/kernel/crash.c
@@ -282,5 +282,5 @@ machine_crash_setup(void)
 	return 0;
 }
 
-__initcall(machine_crash_setup);
+device_initcall(machine_crash_setup);
 
diff --git a/arch/ia64/kernel/cyclone.c b/arch/ia64/kernel/cyclone.c
index 71e3586..66fb97e 100644
--- a/arch/ia64/kernel/cyclone.c
+++ b/arch/ia64/kernel/cyclone.c
@@ -125,4 +125,4 @@ int __init init_cyclone_clock(void)
 	return 0;
 }
 
-__initcall(init_cyclone_clock);
+device_initcall(init_cyclone_clock);
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 703062c..cb7199a 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -6700,7 +6700,7 @@ pfm_init(void)
 	return 0;
 }
 
-__initcall(pfm_init);
+device_initcall(pfm_init);
 
 /*
  * this function is called before pfm_init()
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 41ae6a5..8322a01 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -243,7 +243,7 @@ static int __init register_memory(void)
 	return 0;
 }
 
-__initcall(register_memory);
+device_initcall(register_memory);
 
 
 #ifdef CONFIG_KEXEC
diff --git a/arch/ia64/kernel/uncached.c b/arch/ia64/kernel/uncached.c
index a595823..4a9812f 100644
--- a/arch/ia64/kernel/uncached.c
+++ b/arch/ia64/kernel/uncached.c
@@ -279,4 +279,4 @@ static int __init uncached_init(void)
 	return 0;
 }
 
-__initcall(uncached_init);
+device_initcall(uncached_init);
diff --git a/arch/ia64/kernel/unwind.c b/arch/ia64/kernel/unwind.c
index b6c0e63..62de896 100644
--- a/arch/ia64/kernel/unwind.c
+++ b/arch/ia64/kernel/unwind.c
@@ -2223,7 +2223,7 @@ create_gate_table (void)
 	return 0;
 }
 
-__initcall(create_gate_table);
+device_initcall(create_gate_table);
 
 void __init
 unw_init (void)
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index ed41759..da31b31 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -716,4 +716,4 @@ per_linux32_init(void)
 	return 0;
 }
 
-__initcall(per_linux32_init);
+device_initcall(per_linux32_init);
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 2f2eac2..0341a9e 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -534,7 +534,7 @@ load-$(CONFIG_SGI_IP32)		+= 0xffffffff80004000
 #
 # This is a LIB so that it links at the end, and initcalls are later
 # the sequence; but it is built as an object so that modules don't get
-# removed (as happens, even if they have __initcall/module_init)
+# removed (as happens, even if they have device_initcall/module_init)
 #
 core-$(CONFIG_SIBYTE_BCM112X)	+= arch/mips/sibyte/sb1250/
 core-$(CONFIG_SIBYTE_BCM112X)	+= arch/mips/sibyte/common/
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c
index 69b039c..7233ac8 100644
--- a/arch/mips/kernel/unaligned.c
+++ b/arch/mips/kernel/unaligned.c
@@ -567,5 +567,5 @@ static int __init debugfs_unaligned(void)
 		return -ENOMEM;
 	return 0;
 }
-__initcall(debugfs_unaligned);
+device_initcall(debugfs_unaligned);
 #endif
diff --git a/arch/mips/lasat/sysctl.c b/arch/mips/lasat/sysctl.c
index d87ffd0..6cc8d2f 100644
--- a/arch/mips/lasat/sysctl.c
+++ b/arch/mips/lasat/sysctl.c
@@ -285,4 +285,4 @@ static int __init lasat_register_sysctl(void)
 	return 0;
 }
 
-__initcall(lasat_register_sysctl);
+device_initcall(lasat_register_sysctl);
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index 8f2f8e9..3936be4 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -1325,5 +1325,5 @@ static int __init debugfs_fpuemu(void)
 
 	return 0;
 }
-__initcall(debugfs_fpuemu);
+device_initcall(debugfs_fpuemu);
 #endif
diff --git a/arch/mips/nxp/pnx8550/common/proc.c b/arch/mips/nxp/pnx8550/common/proc.c
index af094cd..9a10d8c 100644
--- a/arch/mips/nxp/pnx8550/common/proc.c
+++ b/arch/mips/nxp/pnx8550/common/proc.c
@@ -108,4 +108,4 @@ static int pnx8550_proc_init( void )
 	return 0;
 }
 
-__initcall(pnx8550_proc_init);
+device_initcall(pnx8550_proc_init);
diff --git a/arch/mips/sibyte/sb1250/bus_watcher.c b/arch/mips/sibyte/sb1250/bus_watcher.c
index 45274bd..e8e7f23 100644
--- a/arch/mips/sibyte/sb1250/bus_watcher.c
+++ b/arch/mips/sibyte/sb1250/bus_watcher.c
@@ -255,4 +255,4 @@ int __init sibyte_bus_watcher(void)
 	return 0;
 }
 
-__initcall(sibyte_bus_watcher);
+device_initcall(sibyte_bus_watcher);
diff --git a/arch/mn10300/kernel/gdb-stub.c b/arch/mn10300/kernel/gdb-stub.c
index 41b1170..22e0613 100644
--- a/arch/mn10300/kernel/gdb-stub.c
+++ b/arch/mn10300/kernel/gdb-stub.c
@@ -1884,7 +1884,7 @@ static int __init gdbstub_postinit(void)
 	return 0;
 }
 
-__initcall(gdbstub_postinit);
+device_initcall(gdbstub_postinit);
 #endif
 
 /*
diff --git a/arch/mn10300/kernel/mn10300-serial.c b/arch/mn10300/kernel/mn10300-serial.c
index ef34d5a..9cada2f 100644
--- a/arch/mn10300/kernel/mn10300-serial.c
+++ b/arch/mn10300/kernel/mn10300-serial.c
@@ -1350,7 +1350,7 @@ static int __init mn10300_serial_init(void)
 	return ret;
 }
 
-__initcall(mn10300_serial_init);
+device_initcall(mn10300_serial_init);
 
 
 #ifdef CONFIG_MN10300_TTYSM_CONSOLE
diff --git a/arch/mn10300/kernel/profile.c b/arch/mn10300/kernel/profile.c
index 20d7d03..e799032 100644
--- a/arch/mn10300/kernel/profile.c
+++ b/arch/mn10300/kernel/profile.c
@@ -48,4 +48,4 @@ static __init int profile_init(void)
 	return 0;
 }
 
-__initcall(profile_init);
+device_initcall(profile_init);
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index c07f618..e7c12c0 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -410,7 +410,7 @@ pcxl_dma_init(void)
 	return 0;
 }
 
-__initcall(pcxl_dma_init);
+device_initcall(pcxl_dma_init);
 
 static void * pa11_dma_alloc_consistent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag)
 {
diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c
index d47ba1a..35ad4cb 100644
--- a/arch/parisc/kernel/pdc_chassis.c
+++ b/arch/parisc/kernel/pdc_chassis.c
@@ -295,7 +295,7 @@ static int __init pdc_chassis_create_procfs(void)
 	return 0;
 }
 
-__initcall(pdc_chassis_create_procfs);
+device_initcall(pdc_chassis_create_procfs);
 
 #endif /* CONFIG_PROC_FS */
 #endif /* CONFIG_PDC_CHASSIS_WARN */
diff --git a/arch/powerpc/kernel/audit.c b/arch/powerpc/kernel/audit.c
index a4dab7c..e721e2e 100644
--- a/arch/powerpc/kernel/audit.c
+++ b/arch/powerpc/kernel/audit.c
@@ -80,4 +80,4 @@ static int __init audit_classes_init(void)
 	return 0;
 }
 
-__initcall(audit_classes_init);
+device_initcall(audit_classes_init);
diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c
index 049dda6..694861f 100644
--- a/arch/powerpc/kernel/idle.c
+++ b/arch/powerpc/kernel/idle.c
@@ -134,5 +134,5 @@ register_powersave_nap_sysctl(void)
 
 	return 0;
 }
-__initcall(register_powersave_nap_sysctl);
+device_initcall(register_powersave_nap_sysctl);
 #endif
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 64f6f20..2e97ae9 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -1203,7 +1203,7 @@ static int __init irq_debugfs_init(void)
 
 	return 0;
 }
-__initcall(irq_debugfs_init);
+device_initcall(irq_debugfs_init);
 #endif /* CONFIG_VIRQ_DEBUG */
 
 #ifdef CONFIG_PPC64
diff --git a/arch/powerpc/kernel/proc_powerpc.c b/arch/powerpc/kernel/proc_powerpc.c
index 1ed3b8d..f53bdca 100644
--- a/arch/powerpc/kernel/proc_powerpc.c
+++ b/arch/powerpc/kernel/proc_powerpc.c
@@ -91,7 +91,7 @@ static int __init proc_ppc64_init(void)
 
 	return 0;
 }
-__initcall(proc_ppc64_init);
+device_initcall(proc_ppc64_init);
 
 #endif /* CONFIG_PPC64 */
 
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 05131d6..628d6df 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -845,7 +845,7 @@ static int __init prom_reconfig_setup(void)
 {
 	return pSeries_reconfig_notifier_register(&prom_reconfig_nb);
 }
-__initcall(prom_reconfig_setup);
+device_initcall(prom_reconfig_setup);
 #endif
 
 /* Find the device node for a given logical cpu number, also returns the cpu
@@ -909,5 +909,5 @@ static int __init export_flat_device_tree(void)
 
 	return 0;
 }
-__initcall(export_flat_device_tree);
+device_initcall(export_flat_device_tree);
 #endif
diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index 8777fb0..7578df5 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -279,7 +279,7 @@ static int __init proc_rtas_init(void)
 	return 0;
 }
 
-__initcall(proc_rtas_init);
+device_initcall(proc_rtas_init);
 
 static int parse_number(const char __user *p, size_t count, unsigned long *val)
 {
diff --git a/arch/powerpc/kernel/rtasd.c b/arch/powerpc/kernel/rtasd.c
index 2e4832a..1bfd919 100644
--- a/arch/powerpc/kernel/rtasd.c
+++ b/arch/powerpc/kernel/rtasd.c
@@ -508,7 +508,7 @@ static int __init rtas_init(void)
 
 	return 0;
 }
-__initcall(rtas_init);
+device_initcall(rtas_init);
 
 static int __init surveillance_setup(char *str)
 {
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index e235e52..6ddb889 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -92,7 +92,7 @@ static int __init smt_setup(void)
 	of_node_put(options);
 	return 0;
 }
-__initcall(smt_setup);
+device_initcall(smt_setup);
 
 static int __init setup_smt_snooze_delay(char *str)
 {
diff --git a/arch/powerpc/kernel/tau_6xx.c b/arch/powerpc/kernel/tau_6xx.c
index a753b72..a38d207 100644
--- a/arch/powerpc/kernel/tau_6xx.c
+++ b/arch/powerpc/kernel/tau_6xx.c
@@ -248,7 +248,7 @@ int __init TAU_init(void)
 	return 0;
 }
 
-__initcall(TAU_init);
+device_initcall(TAU_init);
 
 /*
  * return current temp
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 77f6421..c74aae9 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1303,7 +1303,7 @@ static int __init vio_bus_init(void)
 
 	return 0;
 }
-__initcall(vio_bus_init);
+device_initcall(vio_bus_init);
 
 static ssize_t name_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
diff --git a/arch/powerpc/platforms/iseries/lpevents.c b/arch/powerpc/platforms/iseries/lpevents.c
index b0f8a85..66bc6ff 100644
--- a/arch/powerpc/platforms/iseries/lpevents.c
+++ b/arch/powerpc/platforms/iseries/lpevents.c
@@ -337,5 +337,5 @@ static int __init proc_lpevents_init(void)
 		    &proc_lpevents_operations);
 	return 0;
 }
-__initcall(proc_lpevents_init);
+device_initcall(proc_lpevents_init);
 
diff --git a/arch/powerpc/platforms/iseries/mf.c b/arch/powerpc/platforms/iseries/mf.c
index 6617915..d140c09 100644
--- a/arch/powerpc/platforms/iseries/mf.c
+++ b/arch/powerpc/platforms/iseries/mf.c
@@ -1299,7 +1299,7 @@ static int __init mf_proc_init(void)
 	return 0;
 }
 
-__initcall(mf_proc_init);
+device_initcall(mf_proc_init);
 
 #endif /* CONFIG_PROC_FS */
 
diff --git a/arch/powerpc/platforms/iseries/proc.c b/arch/powerpc/platforms/iseries/proc.c
index 0676368..1e9ac90 100644
--- a/arch/powerpc/platforms/iseries/proc.c
+++ b/arch/powerpc/platforms/iseries/proc.c
@@ -117,4 +117,4 @@ static int __init iseries_proc_init(void)
 		    &proc_titantod_operations);
 	return 0;
 }
-__initcall(iseries_proc_init);
+device_initcall(iseries_proc_init);
diff --git a/arch/powerpc/platforms/iseries/viopath.c b/arch/powerpc/platforms/iseries/viopath.c
index 5aea94f..daac760 100644
--- a/arch/powerpc/platforms/iseries/viopath.c
+++ b/arch/powerpc/platforms/iseries/viopath.c
@@ -186,7 +186,7 @@ static int __init vio_proc_init(void)
 	proc_create("iSeries/config", 0, NULL, &proc_viopath_operations);
         return 0;
 }
-__initcall(vio_proc_init);
+device_initcall(vio_proc_init);
 
 /* See if a given LP is active.  Allow for invalid lps to be passed in
  * and just return invalid
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 7df7fbb..cb72726 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -1287,4 +1287,4 @@ static int __init eeh_init_proc(void)
 		proc_create("ppc64/eeh", 0, NULL, &proc_eeh_operations);
 	return 0;
 }
-__initcall(eeh_init_proc);
+device_initcall(eeh_init_proc);
diff --git a/arch/powerpc/platforms/pseries/hvCall_inst.c b/arch/powerpc/platforms/pseries/hvCall_inst.c
index 1fefae7..ca1b4e2 100644
--- a/arch/powerpc/platforms/pseries/hvCall_inst.c
+++ b/arch/powerpc/platforms/pseries/hvCall_inst.c
@@ -164,4 +164,4 @@ static int __init hcall_inst_init(void)
 
 	return 0;
 }
-__initcall(hcall_inst_init);
+device_initcall(hcall_inst_init);
diff --git a/arch/powerpc/platforms/pseries/power.c b/arch/powerpc/platforms/pseries/power.c
index 6d62662..0eafaf8 100644
--- a/arch/powerpc/platforms/pseries/power.c
+++ b/arch/powerpc/platforms/pseries/power.c
@@ -77,5 +77,5 @@ static int __init apo_pm_init(void)
 {
 	return (sysfs_create_file(power_kobj, &auto_poweron_attr.attr));
 }
-__initcall(apo_pm_init);
+device_initcall(apo_pm_init);
 #endif
diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index d20b96e..247bad9 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -152,7 +152,7 @@ static int __init init_ras_IRQ(void)
 
 	return 0;
 }
-__initcall(init_ras_IRQ);
+device_initcall(init_ras_IRQ);
 
 /*
  * Handle power subsystem events (EPOW).
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index a2305d2..d82ca6c 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -557,4 +557,4 @@ static int proc_ppc64_create_ofdt(void)
 
 	return 0;
 }
-__initcall(proc_ppc64_create_ofdt);
+device_initcall(proc_ppc64_create_ofdt);
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 8bad7d5..cd1ce39 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -2751,7 +2751,7 @@ static int __init setup_xmon_sysrq(void)
 	register_sysrq_key('x', &sysrq_xmon_op);
 	return 0;
 }
-__initcall(setup_xmon_sysrq);
+device_initcall(setup_xmon_sysrq);
 #endif /* CONFIG_MAGIC_SYSRQ */
 
 static int __initdata xmon_early, xmon_off;
diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
index 5c91995..af7ccb3 100644
--- a/arch/s390/appldata/appldata_base.c
+++ b/arch/s390/appldata/appldata_base.c
@@ -659,7 +659,7 @@ out_driver:
 	return rc;
 }
 
-__initcall(appldata_init);
+device_initcall(appldata_init);
 
 /**************************** init / exit <END> ******************************/
 
diff --git a/arch/s390/kernel/audit.c b/arch/s390/kernel/audit.c
index f4932c2..8a9023a 100644
--- a/arch/s390/kernel/audit.c
+++ b/arch/s390/kernel/audit.c
@@ -75,4 +75,4 @@ static int __init audit_classes_init(void)
 	return 0;
 }
 
-__initcall(audit_classes_init);
+device_initcall(audit_classes_init);
diff --git a/arch/s390/kernel/compat_exec_domain.c b/arch/s390/kernel/compat_exec_domain.c
index 914d494..e0715f6 100644
--- a/arch/s390/kernel/compat_exec_domain.c
+++ b/arch/s390/kernel/compat_exec_domain.c
@@ -26,4 +26,4 @@ static int __init s390_init (void)
 	return 0;
 }
 
-__initcall(s390_init);
+device_initcall(s390_init);
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 7eedbbc..19906a7 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -1806,7 +1806,7 @@ static int __init s390_ipl_init(void)
 	return 0;
 }
 
-__initcall(s390_ipl_init);
+device_initcall(s390_ipl_init);
 
 static void __init strncpy_skip_quote(char *dst, char *src, int n)
 {
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 14ef6f0..1a1d7ee 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -291,7 +291,7 @@ out:
 	update_cpu_core_map();
 	return rc;
 }
-__initcall(init_topology_update);
+device_initcall(init_topology_update);
 
 void __init s390_init_cpu_topology(void)
 {
diff --git a/arch/sh/boards/board-edosk7760.c b/arch/sh/boards/board-edosk7760.c
index 35dc099..f47ac82 100644
--- a/arch/sh/boards/board-edosk7760.c
+++ b/arch/sh/boards/board-edosk7760.c
@@ -182,7 +182,7 @@ static int __init init_edosk7760_devices(void)
 	return platform_add_devices(edosk7760_devices,
 				    ARRAY_SIZE(edosk7760_devices));
 }
-__initcall(init_edosk7760_devices);
+device_initcall(init_edosk7760_devices);
 
 /*
  * The Machine Vector
diff --git a/arch/sh/boards/board-sh7785lcr.c b/arch/sh/boards/board-sh7785lcr.c
index fe7e686..ee65ff0 100644
--- a/arch/sh/boards/board-sh7785lcr.c
+++ b/arch/sh/boards/board-sh7785lcr.c
@@ -284,7 +284,7 @@ static int __init sh7785lcr_devices_setup(void)
 	return platform_add_devices(sh7785lcr_devices,
 				    ARRAY_SIZE(sh7785lcr_devices));
 }
-__initcall(sh7785lcr_devices_setup);
+device_initcall(sh7785lcr_devices_setup);
 
 /* Initialize IRQ setting */
 void __init init_sh7785lcr_IRQ(void)
diff --git a/arch/sh/boards/mach-cayman/setup.c b/arch/sh/boards/mach-cayman/setup.c
index 7e8216a..e89e8e1 100644
--- a/arch/sh/boards/mach-cayman/setup.c
+++ b/arch/sh/boards/mach-cayman/setup.c
@@ -165,7 +165,7 @@ static int __init smsc_superio_setup(void)
 
 	return 0;
 }
-__initcall(smsc_superio_setup);
+device_initcall(smsc_superio_setup);
 
 static void __iomem *cayman_ioport_map(unsigned long port, unsigned int len)
 {
diff --git a/arch/sh/boards/mach-landisk/setup.c b/arch/sh/boards/mach-landisk/setup.c
index 50337ac..62f26f4 100644
--- a/arch/sh/boards/mach-landisk/setup.c
+++ b/arch/sh/boards/mach-landisk/setup.c
@@ -83,7 +83,7 @@ static int __init landisk_devices_setup(void)
 				    ARRAY_SIZE(landisk_devices));
 }
 
-__initcall(landisk_devices_setup);
+device_initcall(landisk_devices_setup);
 
 static void __init landisk_setup(char **cmdline_p)
 {
diff --git a/arch/sh/boards/mach-r2d/setup.c b/arch/sh/boards/mach-r2d/setup.c
index b84df6a..4b98a52 100644
--- a/arch/sh/boards/mach-r2d/setup.c
+++ b/arch/sh/boards/mach-r2d/setup.c
@@ -258,7 +258,7 @@ static int __init rts7751r2d_devices_setup(void)
 	return platform_add_devices(rts7751r2d_devices,
 				    ARRAY_SIZE(rts7751r2d_devices));
 }
-__initcall(rts7751r2d_devices_setup);
+device_initcall(rts7751r2d_devices_setup);
 
 static void rts7751r2d_power_off(void)
 {
diff --git a/arch/sh/boards/mach-sdk7786/setup.c b/arch/sh/boards/mach-sdk7786/setup.c
index f094ea2..ddcc73d 100644
--- a/arch/sh/boards/mach-sdk7786/setup.c
+++ b/arch/sh/boards/mach-sdk7786/setup.c
@@ -132,7 +132,7 @@ static int __init sdk7786_devices_setup(void)
 
 	return sdk7786_i2c_setup();
 }
-__initcall(sdk7786_devices_setup);
+device_initcall(sdk7786_devices_setup);
 
 static int sdk7786_mode_pins(void)
 {
diff --git a/arch/sh/boards/mach-se/7206/setup.c b/arch/sh/boards/mach-se/7206/setup.c
index 8f5c65d..91d0823 100644
--- a/arch/sh/boards/mach-se/7206/setup.c
+++ b/arch/sh/boards/mach-se/7206/setup.c
@@ -77,7 +77,7 @@ static int __init se7206_devices_setup(void)
 {
 	return platform_add_devices(se7206_devices, ARRAY_SIZE(se7206_devices));
 }
-__initcall(se7206_devices_setup);
+device_initcall(se7206_devices_setup);
 
 /*
  * The Machine Vector
diff --git a/arch/sh/boards/mach-se/7751/setup.c b/arch/sh/boards/mach-se/7751/setup.c
index 5057251..69e1479 100644
--- a/arch/sh/boards/mach-se/7751/setup.c
+++ b/arch/sh/boards/mach-se/7751/setup.c
@@ -48,7 +48,7 @@ static int __init se7751_devices_setup(void)
 {
 	return platform_add_devices(se7751_devices, ARRAY_SIZE(se7751_devices));
 }
-__initcall(se7751_devices_setup);
+device_initcall(se7751_devices_setup);
 
 /*
  * The Machine Vector
diff --git a/arch/sh/boards/mach-sh03/setup.c b/arch/sh/boards/mach-sh03/setup.c
index af4a0c0..d4f79b2 100644
--- a/arch/sh/boards/mach-sh03/setup.c
+++ b/arch/sh/boards/mach-sh03/setup.c
@@ -96,7 +96,7 @@ static int __init sh03_devices_setup(void)
 
 	return platform_add_devices(sh03_devices, ARRAY_SIZE(sh03_devices));
 }
-__initcall(sh03_devices_setup);
+device_initcall(sh03_devices_setup);
 
 static struct sh_machine_vector mv_sh03 __initmv = {
 	.mv_name		= "Interface (CTP/PCI-SH03)",
diff --git a/arch/sh/kernel/traps_64.c b/arch/sh/kernel/traps_64.c
index e3f92eb..0868d8d 100644
--- a/arch/sh/kernel/traps_64.c
+++ b/arch/sh/kernel/traps_64.c
@@ -923,7 +923,7 @@ static int __init init_sysctl(void)
 	return 0;
 }
 
-__initcall(init_sysctl);
+device_initcall(init_sysctl);
 
 
 asmlinkage void do_debug_interrupt(unsigned long code, struct pt_regs *regs)
diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c
index 71ec90b..768b51b 100644
--- a/arch/sparc/kernel/apc.c
+++ b/arch/sparc/kernel/apc.c
@@ -188,4 +188,4 @@ static int __init apc_init(void)
  * and is easiest to ioremap when SBus is already
  * initialized, so we install ourselves thusly:
  */
-__initcall(apc_init);
+device_initcall(apc_init);
diff --git a/arch/sparc/kernel/audit.c b/arch/sparc/kernel/audit.c
index 8fff0ac..4be9a78 100644
--- a/arch/sparc/kernel/audit.c
+++ b/arch/sparc/kernel/audit.c
@@ -80,4 +80,4 @@ static int __init audit_classes_init(void)
 	return 0;
 }
 
-__initcall(audit_classes_init);
+device_initcall(audit_classes_init);
diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index cdc91d9..0fb5a9c 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -903,7 +903,7 @@ static int __init mdesc_misc_init(void)
 	return misc_register(&mdesc_misc);
 }
 
-__initcall(mdesc_misc_init);
+device_initcall(mdesc_misc_init);
 
 void __init sun4v_mdesc_init(void)
 {
diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c
index 5e4563d..74a99b5 100644
--- a/arch/sparc/kernel/pmc.c
+++ b/arch/sparc/kernel/pmc.c
@@ -93,4 +93,4 @@ static int __init pmc_init(void)
  * and is easiest to ioremap when SBus is already
  * initialized, so we install ourselves thusly:
  */
-__initcall(pmc_init);
+device_initcall(pmc_init);
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index de317d0..c55fa3a 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -493,7 +493,7 @@ static int __init mem_mc_init(void)
 	return 0;
 }
 
-__initcall(mem_mc_init);
+device_initcall(mem_mc_init);
 
 #define CONFIG_BUF_SIZE 64
 
@@ -816,7 +816,7 @@ static int __init mconsole_init(void)
 	return 1;
 }
 
-__initcall(mconsole_init);
+device_initcall(mconsole_init);
 
 static ssize_t mconsole_proc_write(struct file *file,
 		const char __user *buffer, size_t count, loff_t *pos)
@@ -873,7 +873,7 @@ void unlock_notify(void)
 	spin_unlock(&notify_spinlock);
 }
 
-__initcall(create_proc_mconsole);
+device_initcall(create_proc_mconsole);
 
 #define NOTIFY "notify:"
 
@@ -923,7 +923,7 @@ static int add_notifier(void)
 	return 0;
 }
 
-__initcall(add_notifier);
+device_initcall(add_notifier);
 
 char *mconsole_notify_socket(void)
 {
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index a74245a..3864903 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -824,7 +824,7 @@ static int uml_net_init(void)
 	return 0;
 }
 
-__initcall(uml_net_init);
+device_initcall(uml_net_init);
 
 static void close_devices(void)
 {
diff --git a/arch/um/drivers/stderr_console.c b/arch/um/drivers/stderr_console.c
index d07a97f..29eb7ce 100644
--- a/arch/um/drivers/stderr_console.c
+++ b/arch/um/drivers/stderr_console.c
@@ -59,4 +59,4 @@ static int __init unregister_stderr(void)
 	return 0;
 }
 
-__initcall(unregister_stderr);
+device_initcall(unregister_stderr);
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index c1ff690..d5de090 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -1010,7 +1010,7 @@ static int __init ubd_mc_init(void)
 	return 0;
 }
 
-__initcall(ubd_mc_init);
+device_initcall(ubd_mc_init);
 
 static int __init ubd0_init(void)
 {
@@ -1024,7 +1024,7 @@ static int __init ubd0_init(void)
 	return 0;
 }
 
-__initcall(ubd0_init);
+device_initcall(ubd0_init);
 
 /* Used in ubd_init, which is an initcall */
 static struct platform_driver ubd_driver = {
diff --git a/arch/um/kernel/exitcode.c b/arch/um/kernel/exitcode.c
index 829df49..cb05ff8 100644
--- a/arch/um/kernel/exitcode.c
+++ b/arch/um/kernel/exitcode.c
@@ -75,4 +75,4 @@ static int make_proc_exitcode(void)
 	return 0;
 }
 
-__initcall(make_proc_exitcode);
+device_initcall(make_proc_exitcode);
diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c
index a1a9090..87537f0 100644
--- a/arch/um/kernel/physmem.c
+++ b/arch/um/kernel/physmem.c
@@ -209,4 +209,4 @@ static int setup_iomem(void)
 	return 0;
 }
 
-__initcall(setup_iomem);
+device_initcall(setup_iomem);
diff --git a/arch/um/os-Linux/aio.c b/arch/um/os-Linux/aio.c
index 57e3d46..337437e 100644
--- a/arch/um/os-Linux/aio.c
+++ b/arch/um/os-Linux/aio.c
@@ -343,13 +343,13 @@ static int init_aio(void)
 }
 
 /*
- * The reason for the __initcall/__uml_exitcall asymmetry is that init_aio
+ * The reason for the device_initcall/__uml_exitcall asymmetry is that init_aio
  * needs to be called when the kernel is running because it calls run_helper,
  * which needs get_free_page.  exit_aio is a __uml_exitcall because the generic
  * kernel does not run __exitcalls on shutdown, and can't because many of them
  * break when called outside of module unloading.
  */
-__initcall(init_aio);
+device_initcall(init_aio);
 
 static void exit_aio(void)
 {
diff --git a/arch/um/os-Linux/skas/mem.c b/arch/um/os-Linux/skas/mem.c
index d261f17..a0a816a 100644
--- a/arch/um/os-Linux/skas/mem.c
+++ b/arch/um/os-Linux/skas/mem.c
@@ -46,7 +46,7 @@ static int __init init_syscall_regs(void)
 	return 0;
 }
 
-__initcall(init_syscall_regs);
+device_initcall(init_syscall_regs);
 
 extern int proc_mm;
 
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index d6e0a22..25ef142 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -473,7 +473,7 @@ static int __init init_thread_regs(void)
 	return 0;
 }
 
-__initcall(init_thread_regs);
+device_initcall(init_thread_regs);
 
 int copy_context_skas0(unsigned long new_stack, int pid)
 {
diff --git a/arch/um/os-Linux/umid.c b/arch/um/os-Linux/umid.c
index a27defb..23f7b37 100644
--- a/arch/um/os-Linux/umid.c
+++ b/arch/um/os-Linux/umid.c
@@ -326,7 +326,7 @@ static int __init make_umid_init(void)
 	return 0;
 }
 
-__initcall(make_umid_init);
+device_initcall(make_umid_init);
 
 int __init umid_file_name(char *name, char *buf, int len)
 {
diff --git a/arch/um/sys-i386/tls.c b/arch/um/sys-i386/tls.c
index c6c7131..b285fd7 100644
--- a/arch/um/sys-i386/tls.c
+++ b/arch/um/sys-i386/tls.c
@@ -393,4 +393,4 @@ static int __init __setup_host_supports_tls(void)
 	return 0;
 }
 
-__initcall(__setup_host_supports_tls);
+device_initcall(__setup_host_supports_tls);
diff --git a/arch/x86/kernel/audit_64.c b/arch/x86/kernel/audit_64.c
index 06d3e5a..bab6ddc 100644
--- a/arch/x86/kernel/audit_64.c
+++ b/arch/x86/kernel/audit_64.c
@@ -78,4 +78,4 @@ static int __init audit_classes_init(void)
 	return 0;
 }
 
-__initcall(audit_classes_init);
+device_initcall(audit_classes_init);
diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c
index 364d015..eb71685 100644
--- a/arch/x86/kernel/tlb_uv.c
+++ b/arch/x86/kernel/tlb_uv.c
@@ -860,5 +860,5 @@ static int __init uv_bau_init(void)
 
 	return 0;
 }
-__initcall(uv_bau_init);
-__initcall(uv_ptc_init);
+device_initcall(uv_bau_init);
+device_initcall(uv_ptc_init);
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index 1c0c6ab..df45aaf 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -244,7 +244,7 @@ static ctl_table kernel_root_table2[] = {
 };
 #endif
 
-/* Assume __initcall executes before all user space. Hopefully kmod
+/* Assume device_initcall executes before all user space. Hopefully kmod
    doesn't violate that. We'll find out if it does. */
 static void __cpuinit vsyscall_set_cpu(int cpu)
 {
@@ -306,4 +306,4 @@ static int __init vsyscall_init(void)
 	return 0;
 }
 
-__initcall(vsyscall_init);
+device_initcall(vsyscall_init);
diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
index a725b7f..a84535d 100644
--- a/arch/x86/mm/dump_pagetables.c
+++ b/arch/x86/mm/dump_pagetables.c
@@ -349,7 +349,7 @@ static int pt_dump_init(void)
 	return 0;
 }
 
-__initcall(pt_dump_init);
+device_initcall(pt_dump_init);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Arjan van de Ven <arjan@linux.intel.com>");
 MODULE_DESCRIPTION("Kernel debugging helper that dumps pagetables");
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index 02b442e..6c73b85 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -374,7 +374,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 
 #ifdef CONFIG_X86_64
 
-__initcall(sysenter_setup);
+device_initcall(sysenter_setup);
 
 #ifdef CONFIG_SYSCTL
 /* Register vsyscall32 into the ABI table */
@@ -405,7 +405,7 @@ static __init int ia32_binfmt_init(void)
 	register_sysctl_table(abi_root_table2);
 	return 0;
 }
-__initcall(ia32_binfmt_init);
+device_initcall(ia32_binfmt_init);
 #endif
 
 #else  /* CONFIG_X86_32 */
diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
index 21e1aeb..860addc 100644
--- a/arch/x86/vdso/vma.c
+++ b/arch/x86/vdso/vma.c
@@ -73,7 +73,7 @@ static int __init init_vdso_vars(void)
 	vdso_enabled = 0;
 	return -ENOMEM;
 }
-__initcall(init_vdso_vars);
+device_initcall(init_vdso_vars);
 
 struct linux_binprm;
 
diff --git a/arch/xtensa/platforms/iss/console.c b/arch/xtensa/platforms/iss/console.c
index e60a1f5..cdf1715 100644
--- a/arch/xtensa/platforms/iss/console.c
+++ b/arch/xtensa/platforms/iss/console.c
@@ -248,7 +248,7 @@ static __exit void rs_exit(void)
 }
 
 
-/* We use `late_initcall' instead of just `__initcall' as a workaround for
+/* We use `late_initcall' instead of just `device_initcall' as a workaround for
  * the fact that (1) simcons_tty_init can't be called before tty_init,
  * (2) tty_init is called via `module_init', (3) if statically linked,
  * module_init == device_init, and (4) there's no ordering of init lists.
diff --git a/drivers/net/arm/am79c961a.c b/drivers/net/arm/am79c961a.c
index f1f58c5..cc2c734 100644
--- a/drivers/net/arm/am79c961a.c
+++ b/drivers/net/arm/am79c961a.c
@@ -775,4 +775,4 @@ static int __init am79c961_init(void)
 	return platform_driver_register(&am79c961_driver);
 }
 
-__initcall(am79c961_init);
+device_initcall(am79c961_init);
diff --git a/drivers/net/hamradio/baycom_epp.c b/drivers/net/hamradio/baycom_epp.c
index a3c0dc9..fc6f80e 100644
--- a/drivers/net/hamradio/baycom_epp.c
+++ b/drivers/net/hamradio/baycom_epp.c
@@ -35,6 +35,7 @@
  *                    removed some pre-2.2 kernel compatibility cruft
  *   0.6  10.08.1999  Check if parport can do SPP and is safe to access during interrupt contexts
  *   0.7  12.02.2000  adapted to softnet driver interface
+ *   0.8  03.18.2010  update deprecated __initcall to device_initcall
  *
  */
 
diff --git a/drivers/net/hamradio/baycom_par.c b/drivers/net/hamradio/baycom_par.c
index 5f5af9a..f2ddffa 100644
--- a/drivers/net/hamradio/baycom_par.c
+++ b/drivers/net/hamradio/baycom_par.c
@@ -64,6 +64,7 @@
  *   0.8  12.02.2000  adapted to softnet driver interface
  *                    removed direct parport access, uses parport driver methods
  *   0.9  03.07.2000  fix interface name handling
+ *   0.10 03.18.2010  update deprecated __initcall to device_initcall
  */
 
 /*****************************************************************************/
diff --git a/drivers/net/hamradio/baycom_ser_fdx.c b/drivers/net/hamradio/baycom_ser_fdx.c
index 0cab992..d90ad93 100644
--- a/drivers/net/hamradio/baycom_ser_fdx.c
+++ b/drivers/net/hamradio/baycom_ser_fdx.c
@@ -67,6 +67,7 @@
  *   0.8  10.08.1999  use module_init/module_exit
  *   0.9  12.02.2000  adapted to softnet driver interface
  *   0.10 03.07.2000  fix interface name handling
+ *   0.11 03.18.2010  update deprecated __initcall to device_initcall
  */
 
 /*****************************************************************************/
diff --git a/drivers/net/hamradio/baycom_ser_hdx.c b/drivers/net/hamradio/baycom_ser_hdx.c
index 1686f6d..3033cae 100644
--- a/drivers/net/hamradio/baycom_ser_hdx.c
+++ b/drivers/net/hamradio/baycom_ser_hdx.c
@@ -57,6 +57,7 @@
  *   0.8  10.08.1999  use module_init/module_exit
  *   0.9  12.02.2000  adapted to softnet driver interface
  *   0.10 03.07.2000  fix interface name handling
+ *   0.11 03.18.2010  update deprecated __initcall to device_initcall
  */
 
 /*****************************************************************************/
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index b3beab6..642b3bf 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -628,7 +628,7 @@ out:
 	free_page((unsigned long) sccb);
 	return rc;
 }
-__initcall(sclp_detect_standby_memory);
+device_initcall(sclp_detect_standby_memory);
 
 #endif /* CONFIG_MEMORY_HOTPLUG */
 
diff --git a/drivers/s390/char/sclp_config.c b/drivers/s390/char/sclp_config.c
index b497afe..c257eb3 100644
--- a/drivers/s390/char/sclp_config.c
+++ b/drivers/s390/char/sclp_config.c
@@ -87,4 +87,4 @@ static int __init sclp_conf_init(void)
 	return rc;
 }
 
-__initcall(sclp_conf_init);
+device_initcall(sclp_conf_init);
diff --git a/drivers/s390/char/sclp_cpi_sys.c b/drivers/s390/char/sclp_cpi_sys.c
index 62c2647..1ebb83c 100644
--- a/drivers/s390/char/sclp_cpi_sys.c
+++ b/drivers/s390/char/sclp_cpi_sys.c
@@ -426,4 +426,4 @@ static int __init cpi_init(void)
 	return rc;
 }
 
-__initcall(cpi_init);
+device_initcall(cpi_init);
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index 3796ffd..deff553 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -707,7 +707,7 @@ out_driver:
 	put_tty_driver(driver);
 	return rc;
 }
-__initcall(sclp_vt220_tty_init);
+device_initcall(sclp_vt220_tty_init);
 
 static void __sclp_vt220_flush_buffer(void)
 {
diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c
index 7eab9ab..363fd02 100644
--- a/drivers/s390/cio/blacklist.c
+++ b/drivers/s390/cio/blacklist.c
@@ -398,6 +398,6 @@ cio_ignore_proc_init (void)
 	return 0;
 }
 
-__initcall (cio_ignore_proc_init);
+device_initcall(cio_ignore_proc_init);
 
 #endif /* CONFIG_PROC_FS */
diff --git a/drivers/staging/rtl8192u/ieee80211/api.c b/drivers/staging/rtl8192u/ieee80211/api.c
index c627d02..156d867 100644
--- a/drivers/staging/rtl8192u/ieee80211/api.c
+++ b/drivers/staging/rtl8192u/ieee80211/api.c
@@ -229,7 +229,7 @@ static int __init init_crypto(void)
 	return 0;
 }
 
-__initcall(init_crypto);
+device_initcall(init_crypto);
 
 /*
 EXPORT_SYMBOL_GPL(crypto_register_alg);
diff --git a/fs/aio.c b/fs/aio.c
index 1cf12b3..80ddf44 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -92,7 +92,7 @@ static int __init aio_setup(void)
 
 	return 0;
 }
-__initcall(aio_setup);
+device_initcall(aio_setup);
 
 static void aio_free_ring(struct kioctx *ctx)
 {
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 6d55b61..b579a82 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -1780,4 +1780,4 @@ static int __init init_sys32_ioctl(void)
 		init_sys32_ioctl_cmp, NULL);
 	return 0;
 }
-__initcall(init_sys32_ioctl);
+device_initcall(init_sys32_ioctl);
diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
index 56410fa..3d59d44 100644
--- a/ipc/ipc_sysctl.c
+++ b/ipc/ipc_sysctl.c
@@ -209,4 +209,4 @@ static int __init ipc_sysctl_init(void)
 	return 0;
 }
 
-__initcall(ipc_sysctl_init);
+device_initcall(ipc_sysctl_init);
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index e4e3f04..c58ca57 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -1322,4 +1322,4 @@ out_sysctl:
 	return error;
 }
 
-__initcall(init_mqueue_fs);
+device_initcall(init_mqueue_fs);
diff --git a/ipc/util.c b/ipc/util.c
index 79ce84e..d82ec6c 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -106,7 +106,7 @@ static int __init ipc_init(void)
 	register_ipcns_notifier(&init_ipc_ns);
 	return 0;
 }
-__initcall(ipc_init);
+device_initcall(ipc_init);
 
 /**
  *	ipc_init_ids		-	initialise IPC identifiers
diff --git a/kernel/audit.c b/kernel/audit.c
index 78f7f86..d489f47 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -989,7 +989,7 @@ static int __init audit_init(void)
 
 	return 0;
 }
-__initcall(audit_init);
+device_initcall(audit_init);
 
 /* Process kernel command-line parameter at boot time.  audit=0 or audit=1. */
 static int __init audit_enable(char *str)
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index 028e856..e54d2c6 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -919,4 +919,4 @@ static int __init audit_tree_init(void)
 
 	return 0;
 }
-__initcall(audit_tree_init);
+device_initcall(audit_tree_init);
diff --git a/kernel/dma.c b/kernel/dma.c
index f903189..b54e161 100644
--- a/kernel/dma.c
+++ b/kernel/dma.c
@@ -153,7 +153,7 @@ static int __init proc_dma_init(void)
 	return 0;
 }
 
-__initcall(proc_dma_init);
+device_initcall(proc_dma_init);
 #endif
 
 EXPORT_SYMBOL(request_dma);
diff --git a/kernel/futex.c b/kernel/futex.c
index e7a35f1..94efb8c 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -2670,4 +2670,4 @@ static int __init futex_init(void)
 
 	return 0;
 }
-__initcall(futex_init);
+device_initcall(futex_init);
diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c
index d4aba4f..a4088c9 100644
--- a/kernel/lockdep_proc.c
+++ b/kernel/lockdep_proc.c
@@ -687,5 +687,5 @@ static int __init lockdep_proc_init(void)
 	return 0;
 }
 
-__initcall(lockdep_proc_init);
+device_initcall(lockdep_proc_init);
 
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index 79aac93..2c7b5e7 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -189,4 +189,4 @@ static __init int pid_namespaces_init(void)
 	return 0;
 }
 
-__initcall(pid_namespaces_init);
+device_initcall(pid_namespaces_init);
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 1a22dfd..036d64e 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -1727,4 +1727,4 @@ static __init int init_posix_cpu_timers(void)
 
 	return 0;
 }
-__initcall(init_posix_cpu_timers);
+device_initcall(init_posix_cpu_timers);
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 00d1fda..e8c2d04 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -309,7 +309,7 @@ static __init int init_posix_timers(void)
 	return 0;
 }
 
-__initcall(init_posix_timers);
+device_initcall(init_posix_timers);
 
 static void schedule_next_timer(struct k_itimer *timr)
 {
diff --git a/kernel/resource.c b/kernel/resource.c
index 2d5be5d..e678177 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -136,7 +136,7 @@ static int __init ioresources_init(void)
 	proc_create("iomem", 0, NULL, &proc_iomem_operations);
 	return 0;
 }
-__initcall(ioresources_init);
+device_initcall(ioresources_init);
 
 #endif /* CONFIG_PROC_FS */
 
diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c
index 67f95aa..c17988b 100644
--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -379,7 +379,7 @@ static int __init init_sched_debug_procfs(void)
 	return 0;
 }
 
-__initcall(init_sched_debug_procfs);
+device_initcall(init_sched_debug_procfs);
 
 void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
 {
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index bdfb8dd..962b3b2 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -296,4 +296,4 @@ static int __init init_timer_list_procfs(void)
 		return -ENOMEM;
 	return 0;
 }
-__initcall(init_timer_list_procfs);
+device_initcall(init_timer_list_procfs);
diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
index 2f3b585..517552b 100644
--- a/kernel/time/timer_stats.c
+++ b/kernel/time/timer_stats.c
@@ -422,4 +422,4 @@ static int __init init_tstats_procfs(void)
 		return -ENOMEM;
 	return 0;
 }
-__initcall(init_tstats_procfs);
+device_initcall(init_tstats_procfs);
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index cc89be5..c4d12e8 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -580,7 +580,7 @@ static int init_tracepoints(void)
 {
 	return register_module_notifier(&tracepoint_module_nb);
 }
-__initcall(init_tracepoints);
+device_initcall(init_tracepoints);
 
 #endif /* CONFIG_MODULES */
 
diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index a2cd77e..7cbb001 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -111,4 +111,4 @@ static int __init utsname_sysctl_init(void)
 	return 0;
 }
 
-__initcall(utsname_sysctl_init);
+device_initcall(utsname_sysctl_init);
diff --git a/lib/audit.c b/lib/audit.c
index 8e7dc1c..26f41a9 100644
--- a/lib/audit.c
+++ b/lib/audit.c
@@ -63,4 +63,4 @@ static int __init audit_classes_init(void)
 	return 0;
 }
 
-__initcall(audit_classes_init);
+device_initcall(audit_classes_init);
diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index a9a8996..ee41495 100644
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -666,7 +666,7 @@ err:
 
 	return -ENOMEM;
 }
-__initcall(debug_objects_init_debugfs);
+device_initcall(debug_objects_init_debugfs);
 
 #else
 static inline void debug_objects_init_debugfs(void) { }
diff --git a/mm/bounce.c b/mm/bounce.c
index a2b76a5..b6df140 100644
--- a/mm/bounce.c
+++ b/mm/bounce.c
@@ -39,7 +39,7 @@ static __init int init_emergency_pool(void)
 	return 0;
 }
 
-__initcall(init_emergency_pool);
+device_initcall(init_emergency_pool);
 
 /*
  * highmem version, map in to vec
diff --git a/mm/memory.c b/mm/memory.c
index 5b7f200..b39f34e 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3231,7 +3231,7 @@ static int __init gate_vma_init(void)
 	gate_vma.vm_flags |= VM_ALWAYSDUMP;
 	return 0;
 }
-__initcall(gate_vma_init);
+device_initcall(gate_vma_init);
 #endif
 
 struct vm_area_struct *get_gate_vma(struct task_struct *tsk)
diff --git a/mm/mm_init.c b/mm/mm_init.c
index 4e0e265..6586ce5 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -149,4 +149,4 @@ static int __init mm_sysfs_init(void)
 	return 0;
 }
 
-__initcall(mm_sysfs_init);
+device_initcall(mm_sysfs_init);
diff --git a/mm/slab.c b/mm/slab.c
index a9f325b..891218c 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1597,7 +1597,7 @@ static int __init cpucache_init(void)
 		start_cpu_timer(cpu);
 	return 0;
 }
-__initcall(cpucache_init);
+device_initcall(cpucache_init);
 
 /*
  * Interface to system's page allocator. No need to hold the cache-lock.
diff --git a/mm/slub.c b/mm/slub.c
index b364844..a048aa5 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4577,7 +4577,7 @@ static int __init slab_sysfs_init(void)
 	return 0;
 }
 
-__initcall(slab_sysfs_init);
+device_initcall(slab_sysfs_init);
 #endif
 
 /*
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 6cd0a8f..c1e2b6d 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1764,7 +1764,7 @@ static int __init procswaps_init(void)
 	proc_create("swaps", 0, NULL, &proc_swaps_operations);
 	return 0;
 }
-__initcall(procswaps_init);
+device_initcall(procswaps_init);
 #endif /* CONFIG_PROC_FS */
 
 #ifdef MAX_SWAPFILES_CHECK
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 5c24db4..5bdd7d2 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -32,7 +32,7 @@ static __init int init_syncookies(void)
 	get_random_bytes(syncookie_secret, sizeof(syncookie_secret));
 	return 0;
 }
-__initcall(init_syncookies);
+device_initcall(init_syncookies);
 
 #define COOKIEBITS 24	/* Upper bits store count */
 #define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1)
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index c1bc074..6e61075 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -748,4 +748,4 @@ static __init int sysctl_ipv4_init(void)
 	return 0;
 }
 
-__initcall(sysctl_ipv4_init);
+device_initcall(sysctl_ipv4_init);
diff --git a/security/keys/proc.c b/security/keys/proc.c
index 9d01021..9412316 100644
--- a/security/keys/proc.c
+++ b/security/keys/proc.c
@@ -83,7 +83,7 @@ static int __init key_proc_init(void)
 
 } /* end key_proc_init() */
 
-__initcall(key_proc_init);
+device_initcall(key_proc_init);
 
 /*****************************************************************************/
 /*
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 5feecb4..db02af5 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -5783,7 +5783,7 @@ out:
 	return err;
 }
 
-__initcall(selinux_nf_ip_init);
+device_initcall(selinux_nf_ip_init);
 
 #ifdef CONFIG_SECURITY_SELINUX_DISABLE
 static void selinux_nf_ip_exit(void)
diff --git a/security/selinux/netif.c b/security/selinux/netif.c
index b4e14bc..9f89a94 100644
--- a/security/selinux/netif.c
+++ b/security/selinux/netif.c
@@ -315,5 +315,5 @@ static __init int sel_netif_init(void)
 	return err;
 }
 
-__initcall(sel_netif_init);
+device_initcall(sel_netif_init);
 
diff --git a/security/selinux/netlink.c b/security/selinux/netlink.c
index 1ae5564..403b707 100644
--- a/security/selinux/netlink.c
+++ b/security/selinux/netlink.c
@@ -113,4 +113,4 @@ static int __init selnl_init(void)
 	return 0;
 }
 
-__initcall(selnl_init);
+device_initcall(selnl_init);
diff --git a/security/selinux/netnode.c b/security/selinux/netnode.c
index 7100072..e7ae484 100644
--- a/security/selinux/netnode.c
+++ b/security/selinux/netnode.c
@@ -344,4 +344,4 @@ static __init int sel_netnode_init(void)
 	return ret;
 }
 
-__initcall(sel_netnode_init);
+device_initcall(sel_netnode_init);
diff --git a/security/selinux/netport.c b/security/selinux/netport.c
index fe7fba6..94c29f4 100644
--- a/security/selinux/netport.c
+++ b/security/selinux/netport.c
@@ -278,4 +278,4 @@ static __init int sel_netport_init(void)
 	return ret;
 }
 
-__initcall(sel_netport_init);
+device_initcall(sel_netport_init);
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index cd191bb..03eb7d8 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -1730,7 +1730,7 @@ static int __init init_sel_fs(void)
 	return err;
 }
 
-__initcall(init_sel_fs);
+device_initcall(init_sel_fs);
 
 #ifdef CONFIG_SECURITY_SELINUX_DISABLE
 void exit_sel_fs(void)
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index cf27b3e..e7eb598 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2964,7 +2964,7 @@ static int __init aurule_init(void)
 
 	return err;
 }
-__initcall(aurule_init);
+device_initcall(aurule_init);
 
 #ifdef CONFIG_NETLABEL
 /**
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index aeead75..8faf43e 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -1366,4 +1366,4 @@ static int __init init_smk_fs(void)
 	return err;
 }
 
-__initcall(init_smk_fs);
+device_initcall(init_smk_fs);
diff --git a/sound/last.c b/sound/last.c
index bdd0857..5efc26a 100644
--- a/sound/last.c
+++ b/sound/last.c
@@ -38,4 +38,4 @@ static int __init alsa_sound_last_init(void)
 	return 0;
 }
 
-__initcall(alsa_sound_last_init);
+device_initcall(alsa_sound_last_init);
-- 
1.6.5.GIT

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From - Thu Nov 08 21:05:44 2018
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From: Randy Dunlap <rdunlap@xenotime.net>
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Subject: Re: [PATCH] Cosmetic:Partially remove deprecated __initcall() and
 change to
Date: Fri, 19 Mar 2010 15:56:21 -0700
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On 03/19/10 12:51, Justin P. Mattock wrote:
> After doing some things on a small issue,
> I noticed through web surfing, that there were patches
> submitted pertaining that __initcall is deprecated,
> and device_initcall should be used.

Where was this discussion?  Do you have any pointers to it?

I don't see any mention of __initcall being deprecated in
Linus' mainline git tree, or in linux-next, or in mmotm.
Where are those patches?


> So as a change of subject(since what I was looking at
> was frustrating me),I decided to grep the whole tree
> and make the change(partially).
> 
> Currently I'm running this patch on my system, kernel compiles
> without any errors or warnings.(thought there would be a speed increase
> but didn't see much(if any)).

No, __initcall(x) is just a shorthand version of typing
device_initcall(x).  They do the same thing.

> Biggest problem I have though is testing this on other hardware types
> (I only have a macbook,and an iMac).
> So please if you have the access to other arch/hardware types please
> test.
> 
> Now what I mean by partially is the __initcall function is still
> there, so(if any) userspace apps/libs depend on this it's there
> so they dont break and/or any other subsystem, that needs time
> to make the changes.

The only thing that might be affected is building out-of-tree drivers,
but those are easy to fix.

> Note:
> the remaining files that still have __initcall in them are:
> (according to grep)
> 
> arch/um/include/shared/init.h
> include/linux/init.h
> scripts/checkpatch.pl
> 
> either I or somebody else, can change this(although a bit
> concerned about breaking things).
> 
> Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
> ---
>  Documentation/DocBook/kernel-hacking.tmpl    |    4 ++--
>  Documentation/cpu-freq/cpu-drivers.txt       |    2 +-
>  Documentation/kbuild/makefiles.txt           |    2 +-
>  arch/arm/mach-at91/leds.c                    |    2 +-
>  arch/arm/mach-clps711x/p720t.c               |    2 +-
>  arch/arm/mach-ebsa110/leds.c                 |    2 +-
>  arch/arm/mach-footbridge/cats-hw.c           |    2 +-
>  arch/arm/mach-footbridge/ebsa285-leds.c      |    2 +-
>  arch/arm/mach-footbridge/netwinder-hw.c      |    2 +-
>  arch/arm/mach-footbridge/netwinder-leds.c    |    2 +-
>  arch/arm/mach-ks8695/leds.c                  |    2 +-
>  arch/arm/mach-omap1/leds.c                   |    2 +-
>  arch/arm/mach-omap1/pm.c                     |    2 +-
>  arch/arm/mach-orion5x/db88f5281-setup.c      |    2 +-
>  arch/arm/mach-orion5x/rd88f5182-setup.c      |    2 +-
>  arch/arm/mach-pxa/generic.c                  |    2 +-
>  arch/arm/mach-pxa/pxa25x.c                   |    2 +-
>  arch/arm/mach-shark/leds.c                   |    2 +-
>  arch/blackfin/kernel/bfin_gpio.c             |    2 +-
>  arch/blackfin/mach-common/pm.c               |    2 +-
>  arch/cris/arch-v10/kernel/debugport.c        |    2 +-
>  arch/cris/arch-v10/kernel/fasttimer.c        |    2 +-
>  arch/cris/arch-v10/mm/init.c                 |    2 +-
>  arch/cris/arch-v32/kernel/fasttimer.c        |    2 +-
>  arch/cris/arch-v32/kernel/pinmux.c           |    2 +-
>  arch/cris/arch-v32/kernel/signal.c           |    2 +-
>  arch/cris/arch-v32/mach-a3/io.c              |    2 +-
>  arch/cris/arch-v32/mach-a3/pinmux.c          |    2 +-
>  arch/cris/arch-v32/mach-fs/io.c              |    2 +-
>  arch/cris/arch-v32/mach-fs/pinmux.c          |    2 +-
>  arch/cris/kernel/profile.c                   |    2 +-
>  arch/cris/kernel/time.c                      |    2 +-
>  arch/cris/kernel/traps.c                     |    2 +-
>  arch/frv/kernel/gdb-stub.c                   |    2 +-
>  arch/frv/kernel/pm-mb93093.c                 |    2 +-
>  arch/frv/kernel/pm.c                         |    2 +-
>  arch/frv/kernel/sysctl.c                     |    2 +-
>  arch/h8300/kernel/gpio.c                     |    2 +-
>  arch/ia64/hp/sim/simeth.c                    |    2 +-
>  arch/ia64/hp/sim/simserial.c                 |    2 +-
>  arch/ia64/kernel/audit.c                     |    2 +-
>  arch/ia64/kernel/crash.c                     |    2 +-
>  arch/ia64/kernel/cyclone.c                   |    2 +-
>  arch/ia64/kernel/perfmon.c                   |    2 +-
>  arch/ia64/kernel/setup.c                     |    2 +-
>  arch/ia64/kernel/uncached.c                  |    2 +-
>  arch/ia64/kernel/unwind.c                    |    2 +-
>  arch/ia64/mm/init.c                          |    2 +-
>  arch/mips/Makefile                           |    2 +-
>  arch/mips/kernel/unaligned.c                 |    2 +-
>  arch/mips/lasat/sysctl.c                     |    2 +-
>  arch/mips/math-emu/cp1emu.c                  |    2 +-
>  arch/mips/nxp/pnx8550/common/proc.c          |    2 +-
>  arch/mips/sibyte/sb1250/bus_watcher.c        |    2 +-
>  arch/mn10300/kernel/gdb-stub.c               |    2 +-
>  arch/mn10300/kernel/mn10300-serial.c         |    2 +-
>  arch/mn10300/kernel/profile.c                |    2 +-
>  arch/parisc/kernel/pci-dma.c                 |    2 +-
>  arch/parisc/kernel/pdc_chassis.c             |    2 +-
>  arch/powerpc/kernel/audit.c                  |    2 +-
>  arch/powerpc/kernel/idle.c                   |    2 +-
>  arch/powerpc/kernel/irq.c                    |    2 +-
>  arch/powerpc/kernel/proc_powerpc.c           |    2 +-
>  arch/powerpc/kernel/prom.c                   |    4 ++--
>  arch/powerpc/kernel/rtas-proc.c              |    2 +-
>  arch/powerpc/kernel/rtasd.c                  |    2 +-
>  arch/powerpc/kernel/sysfs.c                  |    2 +-
>  arch/powerpc/kernel/tau_6xx.c                |    2 +-
>  arch/powerpc/kernel/vio.c                    |    2 +-
>  arch/powerpc/platforms/iseries/lpevents.c    |    2 +-
>  arch/powerpc/platforms/iseries/mf.c          |    2 +-
>  arch/powerpc/platforms/iseries/proc.c        |    2 +-
>  arch/powerpc/platforms/iseries/viopath.c     |    2 +-
>  arch/powerpc/platforms/pseries/eeh.c         |    2 +-
>  arch/powerpc/platforms/pseries/hvCall_inst.c |    2 +-
>  arch/powerpc/platforms/pseries/power.c       |    2 +-
>  arch/powerpc/platforms/pseries/ras.c         |    2 +-
>  arch/powerpc/platforms/pseries/reconfig.c    |    2 +-
>  arch/powerpc/xmon/xmon.c                     |    2 +-
>  arch/s390/appldata/appldata_base.c           |    2 +-
>  arch/s390/kernel/audit.c                     |    2 +-
>  arch/s390/kernel/compat_exec_domain.c        |    2 +-
>  arch/s390/kernel/ipl.c                       |    2 +-
>  arch/s390/kernel/topology.c                  |    2 +-
>  arch/sh/boards/board-edosk7760.c             |    2 +-
>  arch/sh/boards/board-sh7785lcr.c             |    2 +-
>  arch/sh/boards/mach-cayman/setup.c           |    2 +-
>  arch/sh/boards/mach-landisk/setup.c          |    2 +-
>  arch/sh/boards/mach-r2d/setup.c              |    2 +-
>  arch/sh/boards/mach-sdk7786/setup.c          |    2 +-
>  arch/sh/boards/mach-se/7206/setup.c          |    2 +-
>  arch/sh/boards/mach-se/7751/setup.c          |    2 +-
>  arch/sh/boards/mach-sh03/setup.c             |    2 +-
>  arch/sh/kernel/traps_64.c                    |    2 +-
>  arch/sparc/kernel/apc.c                      |    2 +-
>  arch/sparc/kernel/audit.c                    |    2 +-
>  arch/sparc/kernel/mdesc.c                    |    2 +-
>  arch/sparc/kernel/pmc.c                      |    2 +-
>  arch/um/drivers/mconsole_kern.c              |    8 ++++----
>  arch/um/drivers/net_kern.c                   |    2 +-
>  arch/um/drivers/stderr_console.c             |    2 +-
>  arch/um/drivers/ubd_kern.c                   |    4 ++--
>  arch/um/kernel/exitcode.c                    |    2 +-
>  arch/um/kernel/physmem.c                     |    2 +-
>  arch/um/os-Linux/aio.c                       |    4 ++--
>  arch/um/os-Linux/skas/mem.c                  |    2 +-
>  arch/um/os-Linux/skas/process.c              |    2 +-
>  arch/um/os-Linux/umid.c                      |    2 +-
>  arch/um/sys-i386/tls.c                       |    2 +-
>  arch/x86/kernel/audit_64.c                   |    2 +-
>  arch/x86/kernel/tlb_uv.c                     |    4 ++--
>  arch/x86/kernel/vsyscall_64.c                |    4 ++--
>  arch/x86/mm/dump_pagetables.c                |    2 +-
>  arch/x86/vdso/vdso32-setup.c                 |    4 ++--
>  arch/x86/vdso/vma.c                          |    2 +-
>  arch/xtensa/platforms/iss/console.c          |    2 +-
>  drivers/net/arm/am79c961a.c                  |    2 +-
>  drivers/net/hamradio/baycom_epp.c            |    1 +
>  drivers/net/hamradio/baycom_par.c            |    1 +
>  drivers/net/hamradio/baycom_ser_fdx.c        |    1 +
>  drivers/net/hamradio/baycom_ser_hdx.c        |    1 +
>  drivers/s390/char/sclp_cmd.c                 |    2 +-
>  drivers/s390/char/sclp_config.c              |    2 +-
>  drivers/s390/char/sclp_cpi_sys.c             |    2 +-
>  drivers/s390/char/sclp_vt220.c               |    2 +-
>  drivers/s390/cio/blacklist.c                 |    2 +-
>  drivers/staging/rtl8192u/ieee80211/api.c     |    2 +-
>  fs/aio.c                                     |    2 +-
>  fs/compat_ioctl.c                            |    2 +-
>  ipc/ipc_sysctl.c                             |    2 +-
>  ipc/mqueue.c                                 |    2 +-
>  ipc/util.c                                   |    2 +-
>  kernel/audit.c                               |    2 +-
>  kernel/audit_tree.c                          |    2 +-
>  kernel/dma.c                                 |    2 +-
>  kernel/futex.c                               |    2 +-
>  kernel/lockdep_proc.c                        |    2 +-
>  kernel/pid_namespace.c                       |    2 +-
>  kernel/posix-cpu-timers.c                    |    2 +-
>  kernel/posix-timers.c                        |    2 +-
>  kernel/resource.c                            |    2 +-
>  kernel/sched_debug.c                         |    2 +-
>  kernel/time/timer_list.c                     |    2 +-
>  kernel/time/timer_stats.c                    |    2 +-
>  kernel/tracepoint.c                          |    2 +-
>  kernel/utsname_sysctl.c                      |    2 +-
>  lib/audit.c                                  |    2 +-
>  lib/debugobjects.c                           |    2 +-
>  mm/bounce.c                                  |    2 +-
>  mm/memory.c                                  |    2 +-
>  mm/mm_init.c                                 |    2 +-
>  mm/slab.c                                    |    2 +-
>  mm/slub.c                                    |    2 +-
>  mm/swapfile.c                                |    2 +-
>  net/ipv4/syncookies.c                        |    2 +-
>  net/ipv4/sysctl_net_ipv4.c                   |    2 +-
>  security/keys/proc.c                         |    2 +-
>  security/selinux/hooks.c                     |    2 +-
>  security/selinux/netif.c                     |    2 +-
>  security/selinux/netlink.c                   |    2 +-
>  security/selinux/netnode.c                   |    2 +-
>  security/selinux/netport.c                   |    2 +-
>  security/selinux/selinuxfs.c                 |    2 +-
>  security/selinux/ss/services.c               |    2 +-
>  security/smack/smackfs.c                     |    2 +-
>  sound/last.c                                 |    2 +-
>  166 files changed, 176 insertions(+), 172 deletions(-)


-- 
~Randy
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Subject: Re: [PATCH] Cosmetic:Partially remove deprecated __initcall() and
 change to
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On 03/19/2010 03:56 PM, Randy Dunlap wrote:
> On 03/19/10 12:51, Justin P. Mattock wrote:
>> After doing some things on a small issue,
>> I noticed through web surfing, that there were patches
>> submitted pertaining that __initcall is deprecated,
>> and device_initcall should be used.
>
> Where was this discussion?  Do you have any pointers to it?
>

The best info on this is scripts/checkpatch.pl
line #2664

when I found this I just did a quick search of __initcall
(which gives hits here and there)
https://patchwork.kernel.org/patch/23344/
(also found others at around 2008 or so)

> I don't see any mention of __initcall being deprecated in
> Linus' mainline git tree, or in linux-next, or in mmotm.
> Where are those patches?
>

I don't know(I'm out of the social pipeline when it comes to Linux news, 
and updates)..
like in the explanation part of the patch
I was looking into something else, then ran into this,
so as a break(from what I was originally doing)
decided to do this and submit.

>
>> So as a change of subject(since what I was looking at
>> was frustrating me),I decided to grep the whole tree
>> and make the change(partially).
>>
>> Currently I'm running this patch on my system, kernel compiles
>> without any errors or warnings.(thought there would be a speed increase
>> but didn't see much(if any)).
>
> No, __initcall(x) is just a shorthand version of typing
> device_initcall(x).  They do the same thing.
>

yep, that's what I found out as well(reason for the cosmetic
in the subject line).

>> Biggest problem I have though is testing this on other hardware types
>> (I only have a macbook,and an iMac).
>> So please if you have the access to other arch/hardware types please
>> test.
>>
>> Now what I mean by partially is the __initcall function is still
>> there, so(if any) userspace apps/libs depend on this it's there
>> so they dont break and/or any other subsystem, that needs time
>> to make the changes.
>
> The only thing that might be affected is building out-of-tree drivers,
> but those are easy to fix.
>

alright..main concern is making sure things don't break in the 
kernel(even though things do).

I can have a go at the header files, submit
then if it's something people agree they want to do, then they
can go from there(if not it's fine as well).

>> Note:
>> the remaining files that still have __initcall in them are:
>> (according to grep)
>>
>> arch/um/include/shared/init.h
>> include/linux/init.h
>> scripts/checkpatch.pl
>>
>> either I or somebody else, can change this(although a bit
>> concerned about breaking things).
>>
>> Signed-off-by: Justin P. Mattock<justinmattock@gmail.com>
>> ---
>>   Documentation/DocBook/kernel-hacking.tmpl    |    4 ++--
>>   Documentation/cpu-freq/cpu-drivers.txt       |    2 +-
>>   Documentation/kbuild/makefiles.txt           |    2 +-
>>   arch/arm/mach-at91/leds.c                    |    2 +-
>>   arch/arm/mach-clps711x/p720t.c               |    2 +-
>>   arch/arm/mach-ebsa110/leds.c                 |    2 +-
>>   arch/arm/mach-footbridge/cats-hw.c           |    2 +-
>>   arch/arm/mach-footbridge/ebsa285-leds.c      |    2 +-
>>   arch/arm/mach-footbridge/netwinder-hw.c      |    2 +-
>>   arch/arm/mach-footbridge/netwinder-leds.c    |    2 +-
>>   arch/arm/mach-ks8695/leds.c                  |    2 +-
>>   arch/arm/mach-omap1/leds.c                   |    2 +-
>>   arch/arm/mach-omap1/pm.c                     |    2 +-
>>   arch/arm/mach-orion5x/db88f5281-setup.c      |    2 +-
>>   arch/arm/mach-orion5x/rd88f5182-setup.c      |    2 +-
>>   arch/arm/mach-pxa/generic.c                  |    2 +-
>>   arch/arm/mach-pxa/pxa25x.c                   |    2 +-
>>   arch/arm/mach-shark/leds.c                   |    2 +-
>>   arch/blackfin/kernel/bfin_gpio.c             |    2 +-
>>   arch/blackfin/mach-common/pm.c               |    2 +-
>>   arch/cris/arch-v10/kernel/debugport.c        |    2 +-
>>   arch/cris/arch-v10/kernel/fasttimer.c        |    2 +-
>>   arch/cris/arch-v10/mm/init.c                 |    2 +-
>>   arch/cris/arch-v32/kernel/fasttimer.c        |    2 +-
>>   arch/cris/arch-v32/kernel/pinmux.c           |    2 +-
>>   arch/cris/arch-v32/kernel/signal.c           |    2 +-
>>   arch/cris/arch-v32/mach-a3/io.c              |    2 +-
>>   arch/cris/arch-v32/mach-a3/pinmux.c          |    2 +-
>>   arch/cris/arch-v32/mach-fs/io.c              |    2 +-
>>   arch/cris/arch-v32/mach-fs/pinmux.c          |    2 +-
>>   arch/cris/kernel/profile.c                   |    2 +-
>>   arch/cris/kernel/time.c                      |    2 +-
>>   arch/cris/kernel/traps.c                     |    2 +-
>>   arch/frv/kernel/gdb-stub.c                   |    2 +-
>>   arch/frv/kernel/pm-mb93093.c                 |    2 +-
>>   arch/frv/kernel/pm.c                         |    2 +-
>>   arch/frv/kernel/sysctl.c                     |    2 +-
>>   arch/h8300/kernel/gpio.c                     |    2 +-
>>   arch/ia64/hp/sim/simeth.c                    |    2 +-
>>   arch/ia64/hp/sim/simserial.c                 |    2 +-
>>   arch/ia64/kernel/audit.c                     |    2 +-
>>   arch/ia64/kernel/crash.c                     |    2 +-
>>   arch/ia64/kernel/cyclone.c                   |    2 +-
>>   arch/ia64/kernel/perfmon.c                   |    2 +-
>>   arch/ia64/kernel/setup.c                     |    2 +-
>>   arch/ia64/kernel/uncached.c                  |    2 +-
>>   arch/ia64/kernel/unwind.c                    |    2 +-
>>   arch/ia64/mm/init.c                          |    2 +-
>>   arch/mips/Makefile                           |    2 +-
>>   arch/mips/kernel/unaligned.c                 |    2 +-
>>   arch/mips/lasat/sysctl.c                     |    2 +-
>>   arch/mips/math-emu/cp1emu.c                  |    2 +-
>>   arch/mips/nxp/pnx8550/common/proc.c          |    2 +-
>>   arch/mips/sibyte/sb1250/bus_watcher.c        |    2 +-
>>   arch/mn10300/kernel/gdb-stub.c               |    2 +-
>>   arch/mn10300/kernel/mn10300-serial.c         |    2 +-
>>   arch/mn10300/kernel/profile.c                |    2 +-
>>   arch/parisc/kernel/pci-dma.c                 |    2 +-
>>   arch/parisc/kernel/pdc_chassis.c             |    2 +-
>>   arch/powerpc/kernel/audit.c                  |    2 +-
>>   arch/powerpc/kernel/idle.c                   |    2 +-
>>   arch/powerpc/kernel/irq.c                    |    2 +-
>>   arch/powerpc/kernel/proc_powerpc.c           |    2 +-
>>   arch/powerpc/kernel/prom.c                   |    4 ++--
>>   arch/powerpc/kernel/rtas-proc.c              |    2 +-
>>   arch/powerpc/kernel/rtasd.c                  |    2 +-
>>   arch/powerpc/kernel/sysfs.c                  |    2 +-
>>   arch/powerpc/kernel/tau_6xx.c                |    2 +-
>>   arch/powerpc/kernel/vio.c                    |    2 +-
>>   arch/powerpc/platforms/iseries/lpevents.c    |    2 +-
>>   arch/powerpc/platforms/iseries/mf.c          |    2 +-
>>   arch/powerpc/platforms/iseries/proc.c        |    2 +-
>>   arch/powerpc/platforms/iseries/viopath.c     |    2 +-
>>   arch/powerpc/platforms/pseries/eeh.c         |    2 +-
>>   arch/powerpc/platforms/pseries/hvCall_inst.c |    2 +-
>>   arch/powerpc/platforms/pseries/power.c       |    2 +-
>>   arch/powerpc/platforms/pseries/ras.c         |    2 +-
>>   arch/powerpc/platforms/pseries/reconfig.c    |    2 +-
>>   arch/powerpc/xmon/xmon.c                     |    2 +-
>>   arch/s390/appldata/appldata_base.c           |    2 +-
>>   arch/s390/kernel/audit.c                     |    2 +-
>>   arch/s390/kernel/compat_exec_domain.c        |    2 +-
>>   arch/s390/kernel/ipl.c                       |    2 +-
>>   arch/s390/kernel/topology.c                  |    2 +-
>>   arch/sh/boards/board-edosk7760.c             |    2 +-
>>   arch/sh/boards/board-sh7785lcr.c             |    2 +-
>>   arch/sh/boards/mach-cayman/setup.c           |    2 +-
>>   arch/sh/boards/mach-landisk/setup.c          |    2 +-
>>   arch/sh/boards/mach-r2d/setup.c              |    2 +-
>>   arch/sh/boards/mach-sdk7786/setup.c          |    2 +-
>>   arch/sh/boards/mach-se/7206/setup.c          |    2 +-
>>   arch/sh/boards/mach-se/7751/setup.c          |    2 +-
>>   arch/sh/boards/mach-sh03/setup.c             |    2 +-
>>   arch/sh/kernel/traps_64.c                    |    2 +-
>>   arch/sparc/kernel/apc.c                      |    2 +-
>>   arch/sparc/kernel/audit.c                    |    2 +-
>>   arch/sparc/kernel/mdesc.c                    |    2 +-
>>   arch/sparc/kernel/pmc.c                      |    2 +-
>>   arch/um/drivers/mconsole_kern.c              |    8 ++++----
>>   arch/um/drivers/net_kern.c                   |    2 +-
>>   arch/um/drivers/stderr_console.c             |    2 +-
>>   arch/um/drivers/ubd_kern.c                   |    4 ++--
>>   arch/um/kernel/exitcode.c                    |    2 +-
>>   arch/um/kernel/physmem.c                     |    2 +-
>>   arch/um/os-Linux/aio.c                       |    4 ++--
>>   arch/um/os-Linux/skas/mem.c                  |    2 +-
>>   arch/um/os-Linux/skas/process.c              |    2 +-
>>   arch/um/os-Linux/umid.c                      |    2 +-
>>   arch/um/sys-i386/tls.c                       |    2 +-
>>   arch/x86/kernel/audit_64.c                   |    2 +-
>>   arch/x86/kernel/tlb_uv.c                     |    4 ++--
>>   arch/x86/kernel/vsyscall_64.c                |    4 ++--
>>   arch/x86/mm/dump_pagetables.c                |    2 +-
>>   arch/x86/vdso/vdso32-setup.c                 |    4 ++--
>>   arch/x86/vdso/vma.c                          |    2 +-
>>   arch/xtensa/platforms/iss/console.c          |    2 +-
>>   drivers/net/arm/am79c961a.c                  |    2 +-
>>   drivers/net/hamradio/baycom_epp.c            |    1 +
>>   drivers/net/hamradio/baycom_par.c            |    1 +
>>   drivers/net/hamradio/baycom_ser_fdx.c        |    1 +
>>   drivers/net/hamradio/baycom_ser_hdx.c        |    1 +
>>   drivers/s390/char/sclp_cmd.c                 |    2 +-
>>   drivers/s390/char/sclp_config.c              |    2 +-
>>   drivers/s390/char/sclp_cpi_sys.c             |    2 +-
>>   drivers/s390/char/sclp_vt220.c               |    2 +-
>>   drivers/s390/cio/blacklist.c                 |    2 +-
>>   drivers/staging/rtl8192u/ieee80211/api.c     |    2 +-
>>   fs/aio.c                                     |    2 +-
>>   fs/compat_ioctl.c                            |    2 +-
>>   ipc/ipc_sysctl.c                             |    2 +-
>>   ipc/mqueue.c                                 |    2 +-
>>   ipc/util.c                                   |    2 +-
>>   kernel/audit.c                               |    2 +-
>>   kernel/audit_tree.c                          |    2 +-
>>   kernel/dma.c                                 |    2 +-
>>   kernel/futex.c                               |    2 +-
>>   kernel/lockdep_proc.c                        |    2 +-
>>   kernel/pid_namespace.c                       |    2 +-
>>   kernel/posix-cpu-timers.c                    |    2 +-
>>   kernel/posix-timers.c                        |    2 +-
>>   kernel/resource.c                            |    2 +-
>>   kernel/sched_debug.c                         |    2 +-
>>   kernel/time/timer_list.c                     |    2 +-
>>   kernel/time/timer_stats.c                    |    2 +-
>>   kernel/tracepoint.c                          |    2 +-
>>   kernel/utsname_sysctl.c                      |    2 +-
>>   lib/audit.c                                  |    2 +-
>>   lib/debugobjects.c                           |    2 +-
>>   mm/bounce.c                                  |    2 +-
>>   mm/memory.c                                  |    2 +-
>>   mm/mm_init.c                                 |    2 +-
>>   mm/slab.c                                    |    2 +-
>>   mm/slub.c                                    |    2 +-
>>   mm/swapfile.c                                |    2 +-
>>   net/ipv4/syncookies.c                        |    2 +-
>>   net/ipv4/sysctl_net_ipv4.c                   |    2 +-
>>   security/keys/proc.c                         |    2 +-
>>   security/selinux/hooks.c                     |    2 +-
>>   security/selinux/netif.c                     |    2 +-
>>   security/selinux/netlink.c                   |    2 +-
>>   security/selinux/netnode.c                   |    2 +-
>>   security/selinux/netport.c                   |    2 +-
>>   security/selinux/selinuxfs.c                 |    2 +-
>>   security/selinux/ss/services.c               |    2 +-
>>   security/smack/smackfs.c                     |    2 +-
>>   sound/last.c                                 |    2 +-
>>   166 files changed, 176 insertions(+), 172 deletions(-)
>
>




From - Thu Nov 08 21:05:44 2018
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X-Mozilla-Keys:                                                                                 
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From: Ben Hutchings <ben@decadent.org.uk>
Newsgroups: gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: [PATCH 2/4] panic: Allow taint flag for warnings to be changed
 from TAINT_WARN
Date: Sat, 20 Mar 2010 23:05:40 +0000
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Cc: David Woodhouse <dwmw2@infradead.org>, linux-pci@vger.kernel.org,
	LKML <linux-kernel@vger.kernel.org>,
	linux-parisc@vger.kernel.org, linuxppc-dev@ozlabs.org,
	linux-s390@vger.kernel.org, linux-sh@vger.kernel.org
To: Jesse Barnes <jbarnes@virtuousgeek.org>
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WARN() is used in some places to report firmware or hardware bugs that
are then worked-around.  These bugs do not affect the stability of the
kernel and should not set the usual TAINT_WARN flag.  To allow for
this, add WARN_TAINT() and WARN_TAINT_ONCE() macros that take a taint
flag as argument.

Architectures that implement warnings using trap instructions instead
of calls to warn_slowpath_*() must now implement __WARN_TAINT(taint)
instead of __WARN().

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
The architecture-specific changes here are untested and need to be
reviewed by architecture maintainers.

Ben.

 arch/parisc/include/asm/bug.h  |    8 ++++----
 arch/powerpc/include/asm/bug.h |    6 +++---
 arch/s390/include/asm/bug.h    |    8 ++++----
 arch/sh/include/asm/bug.h      |    4 ++--
 include/asm-generic/bug.h      |   34 ++++++++++++++++++++++++++++++++--
 kernel/panic.c                 |   24 ++++++++++++++++++++----
 lib/bug.c                      |    2 +-
 7 files changed, 66 insertions(+), 20 deletions(-)

diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
index 75e46c5..72cfdb0 100644
--- a/arch/parisc/include/asm/bug.h
+++ b/arch/parisc/include/asm/bug.h
@@ -44,7 +44,7 @@
 #endif
=20
 #ifdef CONFIG_DEBUG_BUGVERBOSE
-#define __WARN()							\
+#define __WARN_TAINT(taint)						\
 	do {								\
 		asm volatile("\n"					\
 			     "1:\t" PARISC_BUG_BREAK_ASM "\n"		\
@@ -54,11 +54,11 @@
 			     "\t.org 2b+%c3\n"				\
 			     "\t.popsection"				\
 			     : : "i" (__FILE__), "i" (__LINE__),	\
-			     "i" (BUGFLAG_WARNING),			\
+			     "i" (BUGFLAG_TAINT(taint)), 		\
 			     "i" (sizeof(struct bug_entry)) );		\
 	} while(0)
 #else
-#define __WARN()							\
+#define __WARN_TAINT(taint)						\
 	do {								\
 		asm volatile("\n"					\
 			     "1:\t" PARISC_BUG_BREAK_ASM "\n"		\
@@ -67,7 +67,7 @@
 			     "\t.short %c0\n"				\
 			     "\t.org 2b+%c1\n"				\
 			     "\t.popsection"				\
-			     : : "i" (BUGFLAG_WARNING),			\
+			     : : "i" (BUGFLAG_TAINT(taint)),		\
 			     "i" (sizeof(struct bug_entry)) );		\
 	} while(0)
 #endif
diff --git a/arch/powerpc/include/asm/bug.h b/arch/powerpc/include/asm/bug.=
h
index 2c15212..065c590 100644
--- a/arch/powerpc/include/asm/bug.h
+++ b/arch/powerpc/include/asm/bug.h
@@ -85,12 +85,12 @@
 	}							\
 } while (0)
=20
-#define __WARN() do {						\
+#define __WARN_TAINT(taint) do {				\
 	__asm__ __volatile__(					\
 		"1:	twi 31,0,0\n"				\
 		_EMIT_BUG_ENTRY					\
 		: : "i" (__FILE__), "i" (__LINE__),		\
-		  "i" (BUGFLAG_WARNING),			\
+		  "i" (BUGFLAG_TAINT(taint)),			\
 		  "i" (sizeof(struct bug_entry)));		\
 } while (0)
=20
@@ -104,7 +104,7 @@
 		"1:	"PPC_TLNEI"	%4,0\n"			\
 		_EMIT_BUG_ENTRY					\
 		: : "i" (__FILE__), "i" (__LINE__),		\
-		  "i" (BUGFLAG_WARNING),			\
+		  "i" (BUGFLAG_TAINT(TAINT_WARN)),		\
 		  "i" (sizeof(struct bug_entry)),		\
 		  "r" (__ret_warn_on));				\
 	}							\
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index 9beeb9d..bf90d1f 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -46,18 +46,18 @@
 	unreachable();					\
 } while (0)
=20
-#define __WARN() do {					\
-	__EMIT_BUG(BUGFLAG_WARNING);			\
+#define __WARN_TAINT(taint) do {			\
+	__EMIT_BUG(BUGFLAG_TAINT(taint));		\
 } while (0)
=20
 #define WARN_ON(x) ({					\
 	int __ret_warn_on =3D !!(x);			\
 	if (__builtin_constant_p(__ret_warn_on)) {	\
 		if (__ret_warn_on)			\
-			__EMIT_BUG(BUGFLAG_WARNING);	\
+			__WARN();			\
 	} else {					\
 		if (unlikely(__ret_warn_on))		\
-			__EMIT_BUG(BUGFLAG_WARNING);	\
+			__WARN();			\
 	}						\
 	unlikely(__ret_warn_on);			\
 })
diff --git a/arch/sh/include/asm/bug.h b/arch/sh/include/asm/bug.h
index d02c01b..6323f86 100644
--- a/arch/sh/include/asm/bug.h
+++ b/arch/sh/include/asm/bug.h
@@ -48,7 +48,7 @@ do {							\
 		   "i" (sizeof(struct bug_entry)));	\
 } while (0)
=20
-#define __WARN()					\
+#define __WARN_TAINT(taint)				\
 do {							\
 	__asm__ __volatile__ (				\
 		"1:\t.short %O0\n"			\
@@ -57,7 +57,7 @@ do {							\
 		 : "n" (TRAPA_BUG_OPCODE),		\
 		   "i" (__FILE__),			\
 		   "i" (__LINE__),			\
-		   "i" (BUGFLAG_WARNING),		\
+		   "i" (BUGFLAG_TAINT(taint)),		\
 		   "i" (sizeof(struct bug_entry)));	\
 } while (0)
=20
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 18c435d..c2c9ba0 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -25,7 +25,10 @@ struct bug_entry {
 };
 #endif		/* __ASSEMBLY__ */
=20
-#define BUGFLAG_WARNING	(1<<0)
+#define BUGFLAG_WARNING		(1 << 0)
+#define BUGFLAG_TAINT(taint)	(BUGFLAG_WARNING | ((taint) << 8))
+#define BUG_GET_TAINT(bug)	((bug)->flags >> 8)
+
 #endif	/* CONFIG_GENERIC_BUG */
=20
 /*
@@ -56,17 +59,25 @@ struct bug_entry {
  * appear at runtime.  Use the versions with printk format strings
  * to provide better diagnostics.
  */
-#ifndef __WARN
+#ifndef __WARN_TAINT
 #ifndef __ASSEMBLY__
 extern void warn_slowpath_fmt(const char *file, const int line,
 		const char *fmt, ...) __attribute__((format(printf, 3, 4)));
+extern void warn_slowpath_fmt_taint(const char *file, const int line,
+				    unsigned taint, const char *fmt, ...)
+	__attribute__((format(printf, 4, 5)));
 extern void warn_slowpath_null(const char *file, const int line);
 #define WANT_WARN_ON_SLOWPATH
 #endif
 #define __WARN()		warn_slowpath_null(__FILE__, __LINE__)
 #define __WARN_printf(arg...)	warn_slowpath_fmt(__FILE__, __LINE__, arg)
+#define __WARN_printf_taint(taint, arg...)				\
+	warn_slowpath_fmt_taint(__FILE__, __LINE__, taint, arg)
 #else
+#define __WARN()		__WARN_TAINT(TAINT_WARN)
 #define __WARN_printf(arg...)	do { printk(arg); __WARN(); } while (0)
+#define __WARN_printf_taint(taint, arg...)				\
+	do { printk(arg); __WARN_TAINT(taint); } while (0)
 #endif
=20
 #ifndef WARN_ON
@@ -87,6 +98,13 @@ extern void warn_slowpath_null(const char *file, const i=
nt line);
 })
 #endif
=20
+#define WARN_TAINT(condition, taint, format...) ({			\
+	int __ret_warn_on =3D !!(condition);				\
+	if (unlikely(__ret_warn_on))					\
+		__WARN_printf_taint(taint, format);			\
+	unlikely(__ret_warn_on);					\
+})
+
 #else /* !CONFIG_BUG */
 #ifndef HAVE_ARCH_BUG
 #define BUG() do {} while(0)
@@ -110,6 +128,8 @@ extern void warn_slowpath_null(const char *file, const =
int line);
 })
 #endif
=20
+#define WARN_TAINT(condition, taint, format...) WARN_ON(condition)
+
 #endif
=20
 #define WARN_ON_ONCE(condition)	({				\
@@ -132,6 +152,16 @@ extern void warn_slowpath_null(const char *file, const=
 int line);
 	unlikely(__ret_warn_once);				\
 })
=20
+#define WARN_TAINT_ONCE(condition, taint, format...)	({	\
+	static bool __warned;					\
+	int __ret_warn_once =3D !!(condition);			\
+								\
+	if (unlikely(__ret_warn_once))				\
+		if (WARN_TAINT(!__warned, taint, format))	\
+			__warned =3D true;			\
+	unlikely(__ret_warn_once);				\
+})
+
 #define WARN_ON_RATELIMIT(condition, state)			\
 		WARN_ON((condition) && __ratelimit(state))
=20
diff --git a/kernel/panic.c b/kernel/panic.c
index 13d966b..8b821bc 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -365,7 +365,8 @@ struct slowpath_args {
 	va_list args;
 };
=20
-static void warn_slowpath_common(const char *file, int line, void *caller,=
 struct slowpath_args *args)
+static void warn_slowpath_common(const char *file, int line, void *caller,
+				 unsigned taint, struct slowpath_args *args)
 {
 	const char *board;
=20
@@ -381,7 +382,7 @@ static void warn_slowpath_common(const char *file, int =
line, void *caller, struc
 	print_modules();
 	dump_stack();
 	print_oops_end_marker();
-	add_taint(TAINT_WARN);
+	add_taint(taint);
 }
=20
 void warn_slowpath_fmt(const char *file, int line, const char *fmt, ...)
@@ -390,14 +391,29 @@ void warn_slowpath_fmt(const char *file, int line, co=
nst char *fmt, ...)
=20
 	args.fmt =3D fmt;
 	va_start(args.args, fmt);
-	warn_slowpath_common(file, line, __builtin_return_address(0), &args);
+	warn_slowpath_common(file, line, __builtin_return_address(0),
+			     TAINT_WARN, &args);
 	va_end(args.args);
 }
 EXPORT_SYMBOL(warn_slowpath_fmt);
=20
+void warn_slowpath_fmt_taint(const char *file, int line,
+			     unsigned taint, const char *fmt, ...)
+{
+	struct slowpath_args args;
+
+	args.fmt =3D fmt;
+	va_start(args.args, fmt);
+	warn_slowpath_common(file, line, __builtin_return_address(0),
+			     taint, &args);
+	va_end(args.args);
+}
+EXPORT_SYMBOL(warn_slowpath_fmt_taint);
+
 void warn_slowpath_null(const char *file, int line)
 {
-	warn_slowpath_common(file, line, __builtin_return_address(0), NULL);
+	warn_slowpath_common(file, line, __builtin_return_address(0),
+			     TAINT_WARN, NULL);
 }
 EXPORT_SYMBOL(warn_slowpath_null);
 #endif
diff --git a/lib/bug.c b/lib/bug.c
index 300e41a..f13daf4 100644
--- a/lib/bug.c
+++ b/lib/bug.c
@@ -165,7 +165,7 @@ enum bug_trap_type report_bug(unsigned long bugaddr, st=
ruct pt_regs *regs)
 			       (void *)bugaddr);
=20
 		show_regs(regs);
-		add_taint(TAINT_WARN);
+		add_taint(BUG_GET_TAINT(bug));
 		return BUG_TRAP_TYPE_WARN;
 	}
=20
--=20
1.7.0




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From - Thu Nov 08 21:05:44 2018
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X-Mozilla-Keys:                                                                                 
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex wait failure
Date: Sun, 21 Mar 2010 14:19:36 -0400
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Cc: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
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	linux-parisc@vger.kernel.org
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On Tue, 16 Mar 2010, Carlos O'Donell wrote:

> After some of my own testing I think this is all MMU related, but I
> can't prove it yet. I'm pouring through as much kernel code as I can
> right now to determine what is going wrong at the time of the clone,
> and I see at least one bug that I'm investigating regarding return
> addresses.

I've attached another version of the minifail test program.  In
this one, the parent and thread both monitor the location 0x4000001c
in the stack region allocated to the thread.  If a problem is
detected, they drop core with an illegal instruction.  If the
child of the fork sees a nonzero value in the above location
when the fork call returns, it sleeps for ten seconds.

When corruption occurs and core is dropped on my c3750 (UP 32-bit
kernel), both the parent and thread have undergone many iterations
of their respective monitor loops.  The forked child always reports
seeing a nonzero value at the stack location.  The before value
in the core dump was zero (i.e., thread_run had not started).

I added an illegal instruction abort to the child.  In this case,
the thread_run loop counter was 48085 when the page was copied and
the before value was zero.

One thought that has crossed my mind is that the memory pages allocated
for the stack region used by the thread are somehow getting interchanged
between parent and child by the fork operation.  This happens fairly
late as both the parent and thread are executing post fork at the time
this happens.  Possibly, this is part of the bug.

I have looked at entry.S and pacache.S quite a bit and it's not obvious
how this could happen, although I must admit to not fully understanding
the tmp alias code.  I tend to think the bug is in the core mm code.

I see a few cleanups to entry.S.  We didn't kill the misnamed macros
(DEP, DEPI and EXTR) for example.  But I don't think these are the problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>

/*
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=561203

  clone(child_stack=0x4088d040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x4108c4e8, tls=0x4108c900, child_tidptr=0x4108c4e8) = 14819
[pid 14819] set_robust_list(0x4108c4f0, 0xc) = 0
[pid 14818] clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x40002028) = 14820

 g++  minifail.cpp -o minifail -O0 -pthread -g

 i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail; done;

 */

int before = -1;

void* thread_run(void* arg) {
	static long status;
	int i;
        
	for (i = 1000000; i; i--)
	  if (*(volatile int *)0x4000001c != 0x407ff340)
	    asm ("iitlbp %r0,(%sr0,%r0)");
	return (void *)&status;
}

int pure_test() {
	int i, stat, x;
	int seen = 0;
	pthread_t thread;
	pthread_create(&thread, NULL, thread_run, NULL);

	before = *(volatile int *)0x4000001c;
	switch (fork()) {
		case -1:
			perror("fork() failed");
		case 0:
			/* x is non-zero iff start thread has saved
			     `args' onto stack in r26 slot.  */
			x = *(volatile int *)0x4000001c;
			if (x == 0x407ff340)
			  {
				sleep (10);
			  }
			printf ("c 0x%x\n", x);
			fflush (stdout);
			return 0;
		default:
			break;
		
	}
	for (i = 1000000; i; i--)
	  {
	    if (!seen && *(volatile int *)0x4000001c == 0x407ff340)
	      seen = i;
	    if (seen && *(volatile int *)0x4000001c != 0x407ff340)
	      asm ("iitlbp %r0,(%sr0,%r0)");
	  }
	printf ("p 0x%x\n", *(int *)0x4000001c);
	if (pthread_join(thread, NULL))
	  perror ("join");
	return 0;
}

int main(int argc, char** argv) {
	return pure_test();
}

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From - Thu Nov 08 21:05:44 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: Re: [PATCH 2/4] panic: Allow taint flag for warnings to be changed from TAINT_WARN
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2694>

Ben Hutchings <ben@decadent.org.uk> writes:

> WARN() is used in some places to report firmware or hardware bugs that
> are then worked-around.  These bugs do not affect the stability of the
> kernel and should not set the usual TAINT_WARN flag.  To allow for
> this, add WARN_TAINT() and WARN_TAINT_ONCE() macros that take a taint
> flag as argument.
>
> Architectures that implement warnings using trap instructions instead
> of calls to warn_slowpath_*() must now implement __WARN_TAINT(taint)
> instead of __WARN().

I guess this should enforce that at least some taint flag is set?
(e.g. with a BUILD_BUG_ON)

-Andi

-- 
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On Sun, 2010-03-21 at 20:10 +0100, Andi Kleen wrote:
> Ben Hutchings <ben@decadent.org.uk> writes:
>=20
> > WARN() is used in some places to report firmware or hardware bugs that
> > are then worked-around.  These bugs do not affect the stability of the
> > kernel and should not set the usual TAINT_WARN flag.  To allow for
> > this, add WARN_TAINT() and WARN_TAINT_ONCE() macros that take a taint
> > flag as argument.
> >
> > Architectures that implement warnings using trap instructions instead
> > of calls to warn_slowpath_*() must now implement __WARN_TAINT(taint)
> > instead of __WARN().
>=20
> I guess this should enforce that at least some taint flag is set?
> (e.g. with a BUILD_BUG_ON)

I'm being a bit sloppy with the wording here.  The TAINT_* macros are
actually bit numbers, not flags.  I could define a TAINT_MAX and add:

	BUILD_BUG_ON(taint < 0 || taint > TAINT_MAX);

Not sure that that's really worth doing though.

Ben.

--=20
Ben Hutchings
If you seem to know what you are doing, you'll be given more to do.

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From - Thu Nov 08 21:05:44 2018
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From: Randy Dunlap <rdunlap@xenotime.net>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.arm.kernel,gmane.linux.redhat.security.audit,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.comp.security.selinux,gmane.linux.ports.sparc,gmane.linux.network,gmane.linux.kernel
Subject: Re: [PATCH] Cosmetic:Partially remove deprecated __initcall() and
 change to
Date: Sun, 21 Mar 2010 17:33:55 -0700
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To: "Justin P. Mattock" <justinmattock@gmail.com>
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On 03/19/10 16:24, Justin P. Mattock wrote:
> On 03/19/2010 03:56 PM, Randy Dunlap wrote:
>> On 03/19/10 12:51, Justin P. Mattock wrote:
>>> After doing some things on a small issue,
>>> I noticed through web surfing, that there were patches
>>> submitted pertaining that __initcall is deprecated,
>>> and device_initcall should be used.
>>
>> Where was this discussion?  Do you have any pointers to it?
>>
> 
> The best info on this is scripts/checkpatch.pl
> line #2664
> 
> when I found this I just did a quick search of __initcall
> (which gives hits here and there)
> https://patchwork.kernel.org/patch/23344/
> (also found others at around 2008 or so)

Thanks.  IMO there should be something in the kernel source tree
that says explicitly that __initcall is deprecated and should be
replaced by using <whatever should be used>.  That's missing.


>> I don't see any mention of __initcall being deprecated in
>> Linus' mainline git tree, or in linux-next, or in mmotm.
>> Where are those patches?
>>
> 
> I don't know(I'm out of the social pipeline when it comes to Linux news,
> and updates)..
> like in the explanation part of the patch
> I was looking into something else, then ran into this,
> so as a break(from what I was originally doing)
> decided to do this and submit.
> 
>>
>>> So as a change of subject(since what I was looking at
>>> was frustrating me),I decided to grep the whole tree
>>> and make the change(partially).
>>>
>>> Currently I'm running this patch on my system, kernel compiles
>>> without any errors or warnings.(thought there would be a speed increase
>>> but didn't see much(if any)).
>>
>> No, __initcall(x) is just a shorthand version of typing
>> device_initcall(x).  They do the same thing.
>>
> 
> yep, that's what I found out as well(reason for the cosmetic
> in the subject line).
> 
>>> Biggest problem I have though is testing this on other hardware types
>>> (I only have a macbook,and an iMac).
>>> So please if you have the access to other arch/hardware types please
>>> test.
>>>
>>> Now what I mean by partially is the __initcall function is still
>>> there, so(if any) userspace apps/libs depend on this it's there
>>> so they dont break and/or any other subsystem, that needs time
>>> to make the changes.
>>
>> The only thing that might be affected is building out-of-tree drivers,
>> but those are easy to fix.
>>
> 
> alright..main concern is making sure things don't break in the
> kernel(even though things do).
> 
> I can have a go at the header files, submit
> then if it's something people agree they want to do, then they
> can go from there(if not it's fine as well).
> 
>>> Note:
>>> the remaining files that still have __initcall in them are:
>>> (according to grep)
>>>
>>> arch/um/include/shared/init.h
>>> include/linux/init.h
>>> scripts/checkpatch.pl
>>>
>>> either I or somebody else, can change this(although a bit
>>> concerned about breaking things).
>>>
>>> Signed-off-by: Justin P. Mattock<justinmattock@gmail.com>
>>> ---


-- 
~Randy
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From - Thu Nov 08 21:05:44 2018
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Subject: Re: [PATCH] Cosmetic:Partially remove deprecated __initcall() and
 change to
Date: Sun, 21 Mar 2010 18:04:08 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2697>

On 03/21/2010 05:33 PM, Randy Dunlap wrote:
> On 03/19/10 16:24, Justin P. Mattock wrote:
>> On 03/19/2010 03:56 PM, Randy Dunlap wrote:
>>> On 03/19/10 12:51, Justin P. Mattock wrote:
>>>> After doing some things on a small issue,
>>>> I noticed through web surfing, that there were patches
>>>> submitted pertaining that __initcall is deprecated,
>>>> and device_initcall should be used.
>>>
>>> Where was this discussion?  Do you have any pointers to it?
>>>
>>
>> The best info on this is scripts/checkpatch.pl
>> line #2664
>>
>> when I found this I just did a quick search of __initcall
>> (which gives hits here and there)
>> https://patchwork.kernel.org/patch/23344/
>> (also found others at around 2008 or so)
>
> Thanks.  IMO there should be something in the kernel source tree
> that says explicitly that __initcall is deprecated and should be
> replaced by using<whatever should be used>.  That's missing.
>

agree..

I should of searched the source tree for something
that says deprecated and so forth before doing anything(the 
checkpatch.pl was something I noticed down the line but doesn't say 
deprecated(say's explicitly).


>
>>> I don't see any mention of __initcall being deprecated in
>>> Linus' mainline git tree, or in linux-next, or in mmotm.
>>> Where are those patches?
>>>
>>
>> I don't know(I'm out of the social pipeline when it comes to Linux news,
>> and updates)..
>> like in the explanation part of the patch
>> I was looking into something else, then ran into this,
>> so as a break(from what I was originally doing)
>> decided to do this and submit.
>>
>>>
>>>> So as a change of subject(since what I was looking at
>>>> was frustrating me),I decided to grep the whole tree
>>>> and make the change(partially).
>>>>
>>>> Currently I'm running this patch on my system, kernel compiles
>>>> without any errors or warnings.(thought there would be a speed increase
>>>> but didn't see much(if any)).
>>>
>>> No, __initcall(x) is just a shorthand version of typing
>>> device_initcall(x).  They do the same thing.
>>>
>>
>> yep, that's what I found out as well(reason for the cosmetic
>> in the subject line).
>>
>>>> Biggest problem I have though is testing this on other hardware types
>>>> (I only have a macbook,and an iMac).
>>>> So please if you have the access to other arch/hardware types please
>>>> test.
>>>>
>>>> Now what I mean by partially is the __initcall function is still
>>>> there, so(if any) userspace apps/libs depend on this it's there
>>>> so they dont break and/or any other subsystem, that needs time
>>>> to make the changes.
>>>
>>> The only thing that might be affected is building out-of-tree drivers,
>>> but those are easy to fix.
>>>
>>
>> alright..main concern is making sure things don't break in the
>> kernel(even though things do).
>>
>> I can have a go at the header files, submit
>> then if it's something people agree they want to do, then they
>> can go from there(if not it's fine as well).
>>
>>>> Note:
>>>> the remaining files that still have __initcall in them are:
>>>> (according to grep)
>>>>
>>>> arch/um/include/shared/init.h
>>>> include/linux/init.h
>>>> scripts/checkpatch.pl
>>>>
>>>> either I or somebody else, can change this(although a bit
>>>> concerned about breaking things).
>>>>
>>>> Signed-off-by: Justin P. Mattock<justinmattock@gmail.com>
>>>> ---
>
>


In any case I'll leave this to you guys to decide.
The patch is in cyberspace now, so if/when this ever
is decided it's there(patch), then can be used then.

Justin P. Mattock


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From: "Carlos O'Donell" <carlos@systemhalted.org>
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On Sun, Mar 21, 2010 at 2:19 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> I added an illegal instruction abort to the child. =A0In this case,
> the thread_run loop counter was 48085 when the page was copied and
> the before value was zero.
>
> One thought that has crossed my mind is that the memory pages allocat=
ed
> for the stack region used by the thread are somehow getting interchan=
ged
> between parent and child by the fork operation. =A0This happens fairl=
y
> late as both the parent and thread are executing post fork at the tim=
e
> this happens. =A0Possibly, this is part of the bug.
>
> I have looked at entry.S and pacache.S quite a bit and it's not obvio=
us
> how this could happen, although I must admit to not fully understandi=
ng
> the tmp alias code. =A0I tend to think the bug is in the core mm code=
=2E
>
> I see a few cleanups to entry.S. =A0We didn't kill the misnamed macro=
s
> (DEP, DEPI and EXTR) for example. =A0But I don't think these are the =
problem.

Dave,

Thank you for another test case. I agree, I also think the bug is in
the core mm code, which I am also trying to review and understand. I
haven't been able to make much progress in this area though. I'll keep
you updated when I spot something I think is wrong.

Cheers,
Carlos.
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Subject: Re: [PATCH 2/4] panic: Allow taint flag for warnings to be changed
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On Sat, 20 Mar 2010 23:05:40 +0000 Ben Hutchings <ben@decadent.org.uk> wrote:

> WARN() is used in some places to report firmware or hardware bugs that
> are then worked-around.  These bugs do not affect the stability of the
> kernel and should not set the usual TAINT_WARN flag.  To allow for
> this, add WARN_TAINT() and WARN_TAINT_ONCE() macros that take a taint
> flag as argument.
> 
> Architectures that implement warnings using trap instructions instead
> of calls to warn_slowpath_*() must now implement __WARN_TAINT(taint)
> instead of __WARN().

When you say they "must now implement", I assume that you mean that
they _do_ now implement, and that no additional architecture work is
needed.

> The architecture-specific changes here are untested and need to be
> reviewed by architecture maintainers.

That would be nice.

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To: Ben Hutchings <ben@decadent.org.uk>
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On Sat, Mar 20, 2010 at 11:05:40PM +0000, Ben Hutchings wrote:
> WARN() is used in some places to report firmware or hardware bugs that
> are then worked-around.  These bugs do not affect the stability of the
> kernel and should not set the usual TAINT_WARN flag.  To allow for
> this, add WARN_TAINT() and WARN_TAINT_ONCE() macros that take a taint
> flag as argument.
> 
> Architectures that implement warnings using trap instructions instead
> of calls to warn_slowpath_*() must now implement __WARN_TAINT(taint)
> instead of __WARN().
> 
> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
> ---
> The architecture-specific changes here are untested and need to be
> reviewed by architecture maintainers.
> 
I'm a bit confused about how this is supposed to work, the TAINT_xxx
values are bit positions presently from 0 to 10, while BUGFLAG_xxx are
ranged from 0 up. You've set up BUGFLAG_TAINT() to that the TAINT_xxx
value is shifted up 8 bits but neglected the fact that the trap type is
16-bits on most (all?) of the platforms using trap-based BUG handling.

If the 'taint' in question is just the TAINT_xxx value by itself and will
never be a bitmap then that's fine, but there's certainly not enough room
to pass the bitmap in on top of the bugflag otherwise (I don't know if
this is your intention or not though).

Also note that some platforms (like SH) implement additional bugflags, so
we at least want to keep the lower byte available for architecture
private use.

Having said that, the current patch does work for me, although I'm a bit
nervous about someone thinking it's ok to pass in a taint bitmap here.

Tested-by: Paul Mundt <lethal@linux-sh.org>

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Subject: Re: [PATCH 2/4] panic: Allow taint flag for warnings to be changed
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On Mon, 2010-03-22 at 22:47 -0400, Andrew Morton wrote:
> On Sat, 20 Mar 2010 23:05:40 +0000 Ben Hutchings <ben@decadent.org.uk> wr=
ote:
>=20
> > WARN() is used in some places to report firmware or hardware bugs that
> > are then worked-around.  These bugs do not affect the stability of the
> > kernel and should not set the usual TAINT_WARN flag.  To allow for
> > this, add WARN_TAINT() and WARN_TAINT_ONCE() macros that take a taint
> > flag as argument.
> >=20
> > Architectures that implement warnings using trap instructions instead
> > of calls to warn_slowpath_*() must now implement __WARN_TAINT(taint)
> > instead of __WARN().
>=20
> When you say they "must now implement", I assume that you mean that
> they _do_ now implement, and that no additional architecture work is
> needed.

Right, I believe I fixed-up all the current architectures.  There might
be more architectures out there, unmerged as yet.

Ben.

--=20
Ben Hutchings
Any smoothly functioning technology is indistinguishable from a rigged demo=
.

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On Tue, 2010-03-23 at 16:45 +0900, Paul Mundt wrote:
> On Sat, Mar 20, 2010 at 11:05:40PM +0000, Ben Hutchings wrote:
> > WARN() is used in some places to report firmware or hardware bugs that
> > are then worked-around.  These bugs do not affect the stability of the
> > kernel and should not set the usual TAINT_WARN flag.  To allow for
> > this, add WARN_TAINT() and WARN_TAINT_ONCE() macros that take a taint
> > flag as argument.
> >=20
> > Architectures that implement warnings using trap instructions instead
> > of calls to warn_slowpath_*() must now implement __WARN_TAINT(taint)
> > instead of __WARN().
> >=20
> > Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
> > ---
> > The architecture-specific changes here are untested and need to be
> > reviewed by architecture maintainers.
> >=20
> I'm a bit confused about how this is supposed to work, the TAINT_xxx
> values are bit positions presently from 0 to 10, while BUGFLAG_xxx are
> ranged from 0 up. You've set up BUGFLAG_TAINT() to that the TAINT_xxx
> value is shifted up 8 bits but neglected the fact that the trap type is
> 16-bits on most (all?) of the platforms using trap-based BUG handling.
>=20
> If the 'taint' in question is just the TAINT_xxx value by itself and will
> never be a bitmap then that's fine, but there's certainly not enough room
> to pass the bitmap in on top of the bugflag otherwise (I don't know if
> this is your intention or not though).

Yes, the taint value must be a bit number not a flag.  Sloppy wording on
my part.

> Also note that some platforms (like SH) implement additional bugflags, so
> we at least want to keep the lower byte available for architecture
> private use.

I noticed, that's why I started at 8 not 1.

> Having said that, the current patch does work for me, although I'm a bit
> nervous about someone thinking it's ok to pass in a taint bitmap here.

We can maybe use BUILD_BUG_ON() here as the taint bit is already
required to be a compile-time constant.

Ben.

> Tested-by: Paul Mundt <lethal@linux-sh.org>
>=20

--=20
Ben Hutchings
Any smoothly functioning technology is indistinguishable from a rigged demo=
.

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On Sun, Mar 21, 2010 at 2:19 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> One thought that has crossed my mind is that the memory pages allocat=
ed
> for the stack region used by the thread are somehow getting interchan=
ged
> between parent and child by the fork operation. =A0This happens fairl=
y
> late as both the parent and thread are executing post fork at the tim=
e
> this happens. =A0Possibly, this is part of the bug.
>
> I have looked at entry.S and pacache.S quite a bit and it's not obvio=
us
> how this could happen, although I must admit to not fully understandi=
ng
> the tmp alias code. =A0I tend to think the bug is in the core mm code=
=2E
>
> I see a few cleanups to entry.S. =A0We didn't kill the misnamed macro=
s
> (DEP, DEPI and EXTR) for example. =A0But I don't think these are the =
problem.

I can't get minifail2 to fail, how are you choosing which stack
address to watch for corruption?

Are you looking at the child's new stack created by mmap?

Are you looking at the parent's stack?

I found one bug in the hppa vfork() function call, which in the case
of error, would fail to propagate the error correctly. Fixing that and
will check it in. It doesn't account for the vfork/execve problems
though, since in this case vfork completes but execve crashes.

I also have some patches for asm-offsets.c, and entry.S to comment
some of the code better. I'll send those to Kyle after cleanup.

Cheers,
Carlos.
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Kyle,

The execve_wrapper macro loads thread->task like this:
LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1

This assumes that at the point the macro is called that there is only
THREAD_SZ_ALGN+FRAME_SIZE between %r30 and the starting value of %r30
(cr30).

However, in the syscall entry path I see (syscall.S):
ldo     THREAD_SZ_ALGN+FRAME_SIZE(%r30),%r30  /* set up kernel stack */
...
STREGM  %r1,FRAME_SIZE(%r30)            /* save r1 (usp) here for now */

Which means that between %r30 and the start there is actually
THREAD_SZ_ALGN+2*FRAME_SIZE.

I believe that these should match, so that when we return we can
restore some of the things we saved.
e.g. execve_wrapper should read:
LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30),%r1

or heaven forbid the easier to read:

mfctl   %cr30,%r1                       /* get task ptr in %r1 */
LDREG   TI_TASK(%r1),%r1

Comments?

Cheers,
Carlos.
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From - Thu Nov 08 21:05:45 2018
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> I can't get minifail2 to fail, how are you choosing which stack
> address to watch for corruption?

The stack allocated by pthread_create is always placed at 0x40000000
in my runs.  The location that the last version which I sent monitors
is 0x4000001c.  This is the location where thread_run saves %r26
shortly after entry.

I'm compiling without optimization as indicated in the comment.  Usually,
I also link with -static since gdb is somewhat broken when debugging
shared libraries.  If the compile is optimized, then thread_run may
not save much on the stack and it may be harder to get it to fail.

The problem is timing dependent.  I'm a bit surprised that you can't
duplicate the problem as Helge could.  When I run the test loop, it
fails about one in thirty on my c3750.  I have a 250 Hz tick rate in
my config.  The fail rate is somewhat dependent on system load.

I added the monitor loops to try and pin down when the corruption occurs
but the test should fail if the thread's stack region gets corrupted
while thread_run executes.

Have you made any changes to libc which would affect the synchonization
of parent and child?  I think the problem might be fixed if the parent
and thread were prevented from executing until the fork is complete.
I still think the kernel is interchanging the pages used by the parent
and child for the mmap'd stack region.

> Are you looking at the child's new stack created by mmap?

We are looking at the area allocated by mmap in the call to pthread_create.
This is always where the corruption occurs in the subsequent fork call.

This area is used as the stack for the thread created by pthread_create.
When the problem occurs, it's the thread that generates the fault, never
the original parent.

> Are you looking at the parent's stack?

No.  However, the parent can see changes to the stack area used by the
thread created by the pthread_create call.  As I understand the situtation,
the child of the fork call should see a snapshot of this area as it was
at the time of the fork call.  fork is nominally supposed to be "atomic"
(see Open Group man page).

In both the parent and forked child, the first three words starting at
0x40000000 are always nonzero and correct.  That's why I think the pages
are getting interchanged (I also played with adding extra cache flushes
in pacache.S but that didn't change things).

Dave
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Subject: Re: Incorrect execve_wrapper macro?
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> The execve_wrapper macro loads thread->task like this:
> LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
> 
> This assumes that at the point the macro is called that there is only
> THREAD_SZ_ALGN+FRAME_SIZE between %r30 and the starting value of %r30
> (cr30).
> 
> However, in the syscall entry path I see (syscall.S):
> ldo     THREAD_SZ_ALGN+FRAME_SIZE(%r30),%r30  /* set up kernel stack */
> ...
> STREGM  %r1,FRAME_SIZE(%r30)            /* save r1 (usp) here for now */
> 
> Which means that between %r30 and the start there is actually
> THREAD_SZ_ALGN+2*FRAME_SIZE.

This is wrong as there is a compensating LDREGM:

        LDREGM  -FRAME_SIZE(%r30), %r2          /* get users sp back */

> or heaven forbid the easier to read:
> 
> mfctl   %cr30,%r1                       /* get task ptr in %r1 */
> LDREG   TI_TASK(%r1),%r1

The above looks safer...

Dave
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On Sat, 2010-03-20 at 23:05 +0000, Ben Hutchings wrote:
> WARN() is used in some places to report firmware or hardware bugs that
> are then worked-around.  These bugs do not affect the stability of the
> kernel and should not set the usual TAINT_WARN flag.  To allow for
> this, add WARN_TAINT() and WARN_TAINT_ONCE() macros that take a taint
> flag as argument.
..
> The architecture-specific changes here are untested and need to be
> reviewed by architecture maintainers.

I'm not one of them, but this at least builds on powerpc FWIW.

cheers

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From - Thu Nov 08 21:05:45 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: Incorrect execve_wrapper macro?
Date: Wed, 24 Mar 2010 08:49:21 -0400
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On Tue, Mar 23, 2010 at 8:45 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> The execve_wrapper macro loads thread->task like this:
>> LDREG =A0 TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
>>
>> This assumes that at the point the macro is called that there is onl=
y
>> THREAD_SZ_ALGN+FRAME_SIZE between %r30 and the starting value of %r3=
0
>> (cr30).
>>
>> However, in the syscall entry path I see (syscall.S):
>> ldo =A0 =A0 THREAD_SZ_ALGN+FRAME_SIZE(%r30),%r30 =A0/* set up kernel=
 stack */
>> ...
>> STREGM =A0%r1,FRAME_SIZE(%r30) =A0 =A0 =A0 =A0 =A0 =A0/* save r1 (us=
p) here for now */
>>
>> Which means that between %r30 and the start there is actually
>> THREAD_SZ_ALGN+2*FRAME_SIZE.
>
> This is wrong as there is a compensating LDREGM:
>
> =A0 =A0 =A0 =A0LDREGM =A0-FRAME_SIZE(%r30), %r2 =A0 =A0 =A0 =A0 =A0/*=
 get users sp back */

Thanks, I missed the `M` and thought it was just loading from a negativ=
e offset.

>> or heaven forbid the easier to read:
>>
>> mfctl =A0 %cr30,%r1 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 /* g=
et task ptr in %r1 */
>> LDREG =A0 TI_TASK(%r1),%r1
>
> The above looks safer...

It is, but a little bit slower, does it matter?

This change would make execve_wrapper independent of r30's value.

I think for now I'll just document the requirement.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:45 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Question about execve.
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Helge,

On PARISC I'm seeing the following reproducible behvaiour:

* Parent calls vfork()
* Child of vfork() calls execve()
* Child returns from execve() and starts corrupting parent state
eventually leading to a segmentation fault.
* New process (as a result of execve) runs to completion.

What code in the Linux kernel prevents the child, which calls
execve(), from returning?

Test case attached.

Cheers,
Carlos.

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From - Thu Nov 08 21:05:45 2018
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Subject: Error case in execve_wrapper?
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Helge,

In arch/parisc/kernel/entry.S (execve_wrapper) we have this code:

        BL \execve,%r2
        copy %r1,%arg0

        ldo -FRAME_SIZE(%r30),%r30
        LDREG -RP_OFFSET(%r30),%r2

        /* If exec succeeded we need to load the args */

        ldo -1024(%r0),%r1
        cmpb,>>= %r28,%r1,error_\execve
        copy %r2,%r19

error_\execve:
        bv %r0(%r19)
        nop
        .endm

Why does this wrapper check the result of execve?

The cmpb has no nullification, therefore it always copies the return
pointer into r19, and we branch back to the syscall return path. IMO
checking the result of the syscall is not useful, since everything
should already be setup such that the normal restore process returns
to the newly exec'd process.

Comments?

Cheers,
Carlos.
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Subject: Re: Question about execve.
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Sat, 27 Mar 2010, Carlos O'Donell wrote:

> Helge,
> 
> On PARISC I'm seeing the following reproducible behvaiour:
> 
> * Parent calls vfork()
> * Child of vfork() calls execve()
> * Child returns from execve() and starts corrupting parent state
> eventually leading to a segmentation fault.
> * New process (as a result of execve) runs to completion.
> 
> What code in the Linux kernel prevents the child, which calls
> execve(), from returning?

All the execute a file commands can return if an error occurs.  Thus,
I question the fact that the execve wrapper doesn't save registers.

The vfork child runs using the parent's stack.  Thus, even the call
to execve potentially corrupts the parent's stack, and depending on
scheduling, this might cause a segmentation fault in either parent or
child.

Here's a couple of excerpts from the vfork man page for HP-UX:

Series 800

Process times for the parent and child processes within the [vfork,exec]
window may be inaccurate.

    * Parent and child processes share the same stack space within the
    [vfork,exec] window. If the size of the stack has been changed within
    this window by the child process (return from or call to a function,
    for example), it is likely that the parent and child processes will
    be killed with signal SIGSEGV or SIGBUS.

The [vfork,exec] window begins at the vfork() call and ends when the child
completes its exec() call.

The Open Group man page says:

The use of vfork() for any purpose except as a prelude to an immediate call
to a function from the exec  family, or to _exit(), is not advised.  On HP-UX,
it's not supported.

I see that this is not a new issue for linux:
http://lkml.indiana.edu/hypermail/linux/kernel/9902.0/0256.html

It is ok to treat vfork() identically to fork(), and the HP-UX
manpage indicates that this may be the case for certain HP-UX
implementations (maybe Series 700).

> Test case attached.

I was not able to save your pt-fork.S file.   mutt didn't understand
the encoding.

I tried the vfork.c test case on my c3750 with 32-bit kernel.  It
didn't segv in a limited number of runs.  However, I did notice that
getpid() is broken after vfork().

The printf call in the child path probably isn't legit.  It's also not
legit to simply return if execve fails.  _exit must be called.

My guess would be that the parent is not blocked leading to corruption.

> #include <stdio.h>
> #include <stdlib.h>
> #include <errno.h>
> #include <unistd.h>
> 
> #define CALL_EXIT 0
> 
> int main (void)
> {
>   pid_t child;
>   char *cmd[] = { "bash", "-c", "echo In child $$;", (char *)0 };
>   char *env[] = { "HOME=/tmp", (char *)0 };
>   int ret;
> 
>   child = vfork();
> 
>   if (child == 0)
>     {
>       ret = execve("/bin/bash", cmd, env);
>       printf ("ret = %d\n", ret);
> #if CALL_EXIT == 1
>       _exit(1);
> #endif
>     }
>   else
>     {
>       printf("child != 0\n");
>     }
> 
>   printf("parent is %d\n", (unsigned int)getpid());
>   printf("child is %d\n", (unsigned int)child);
> 
>   return 0;
> }

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Dave, Helge,

Is there any reason why gdbserver is not built for gdb on hppa-linux-gnu?

I see clearly that gdb/gdb/configure.tgt does not set build_gdbserver
for hppa*-*-linux*.

I've enabled gdbserver for gdb 7.x, and I'll test it.

If it works I'll submit this upstream.

Cheers,
Carlos.
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> My guess would be that the parent is not blocked leading to corruption.

I did a quick test and the child always seems to run first.

Dave
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> Is there any reason why gdbserver is not built for gdb on hppa-linux-gnu?

Not that I am aware of.  Randolph would know better.

Dave
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On Sun, Mar 28, 2010 at 11:42 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> Test case attached.
>
> I was not able to save your pt-fork.S file. =A0 mutt didn't understand
> the encoding.

Attached as vforktest.tgz.

> I tried the vfork.c test case on my c3750 with 32-bit kernel. =A0It
> didn't segv in a limited number of runs. =A0However, I did notice that
> getpid() is broken after vfork().

Broken how?

A small note about getpid():

Since the parent and child share the same memory space, the parent
temporarily negates the cached PID value just before the vfork. Only
the parent, after the vfork, restores the cached PID. This is on
purpose to prevent any functions like PID-related functions from
working in the child() during the window bewteen vfork and execve.

> The printf call in the child path probably isn't legit. =A0It's also not
> legit to simply return if execve fails. =A0_exit must be called.

The printf call in the child path is ABSOLUTELY wrong, but I wanted to
see what the return was. You could equally well insert:

#define ABORT_INSTRUCTION asm ("iitlbp %r0,(%sr0, %r0)")

And cause the child to abort with an invalid instruction trap, and
inspect r28 at the time of the fault to see what execve returned.

In fact I use this in my testing now to avoid printf.

> My guess would be that the parent is not blocked leading to corruption.

What I see is that the child is returning from the kernel execve, and
continuing to execute.

If I use ABORT_INSTRUCTION in the child right after the execve I see this:

carlos@firin:~/fsrc/vforkfailure/test$ ./vfork
Illegal instruction
carlos@firin:~/fsrc/vforkfailure/test$ In child 28734

This makes *no* sense.

What I don't understand is this:

* vfork'd child shares memory space with parent, therefore space id
has to be the same?
* Does execve give the process a new space id or does it simply
overwrite the entire process image?

So I had the test case try to exec a binary that just calls ABORT_INSTRUCTI=
ON.

What I noticed is the following:

carlos@firin:~/fsrc/vforkfailure/test$ ./vfork
parent sr3 is 0x3428000
Illegal instruction

There are 2 entries in dmesg:
vfork (pid 28964): Illegal instruction (code 8) at 00000000000106a7
main (pid 28965): Illegal instruction (code 8) at 00000000000104af

* The child returning from execve has the same space id as the parent
e.g. 0x3418000
* The process run via the execve has a different space id e.g. 0x3418800

What is supposed to stop the child, which called execve, from
returning to the parent?

Cheers,
Carlos.

--0016e6d7dfa75a289d0482dfb388
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From - Thu Nov 08 21:05:46 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Question about execve.
Date: Sun, 28 Mar 2010 13:32:51 -0400 (EDT)
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To: dave.anglin@nrc-cnrc.gc.ca
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> I tried the vfork.c test case on my c3750 with 32-bit kernel.  It
> didn't segv in a limited number of runs.  However, I did notice that
> getpid() is broken after vfork().

The vfork (clone) syscall corrupts (i.e., inserts wrong value)
the parent tid.  In the following, I disabled the printf's and
execve call in Carlos's testcase.  The child just does _exit().

The fast path through getpid is:

Dump of assembler code for function getpid:
0x0001ad2c <getpid+0>:	stw rp,-14(sp)
0x0001ad30 <getpid+4>:	mfctl tr3,r20
0x0001ad34 <getpid+8>:	ldw -414(r20),r19
0x0001ad38 <getpid+12>:	cmpib,>= 0,r19,0x1ad48 <getpid+28>
0x0001ad3c <getpid+16>:	copy r19,ret0
0x0001ad40 <getpid+20>:	ldw -14(sp),rp
0x0001ad44 <getpid+24>:	bv,n r0(rp)

Breakpoint 3, 0x0001ad34 in getpid ()
(gdb) del 2
(gdb) p/x $r20
$6 = 0x9a480

Breakpoint 4, main () at vfork.c:17
17	  child = vfork();
(gdb) x/x 0x9a480 - 0x414
0x9a06c:	0x00000000
(gdb) c
Continuing.

Breakpoint 3, 0x0001ad34 in getpid ()
(gdb) x/x 0x9a480 - 0x414
0x9a06c:	0x10101364

Breakpoint 4, main () at vfork.c:17
17	  child = vfork();
(gdb) x/64x 0x9a040
0x9a040:	0x00000000	0x00000000	0x00000000	0x00000000
0x9a050:	0x00000000	0x00000000	0x00000000	0x00000000
0x9a060:	0x00000000	0x00000000	0x00000000	0x00000000
0x9a070:	0x00000000	0x00000000	0x00000000	0x00000000
0x9a080:	0xc0521150	0x00000000	0x00000000	0x00000000

Breakpoint 3, 0x0001ad34 in getpid ()
(gdb) x/64x 0x9a040
0x9a040:	0x00000000	0x00000000	0x00000000	0x00000000
0x9a050:	0x00000000	0x00000000	0x00000000	0x00000000
0x9a060:	0x00000000	0x00000000	0x00000000	0x10101364
0x9a070:	0x00000000	0x00000000	0x00000000	0x00000000
0x9a080:	0xc03ae150	0x00000000	0x00000000	0x00000000

So, the only location changed by vfork is the parent tid.

dave@hiauly6:~$ strace ./vfork
execve("./vfork", ["./vfork"], [/* 16 vars */]) = 0
newuname({sys="Linux", node="hiauly6", ...}) = 0
brk(0)                                  = 0x9a000
brk(0x9acb4)                            = 0x9acb4
brk(0xbbcb4)                            = 0xbbcb4
brk(0xbc000)                            = 0xbc000
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x9a068) = 6212
fstat64(0x1, 0xc0258a08)                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40000000
write(1, "parent is 269488996\n", 20parent is 269488996
)   = 20
exit_group(0)                           = ?

(gdb) p/x 269488996
$1 = 0x10101364

I believe this is the "getpid" implementation:

static inline __attribute__((always_inline)) pid_t
really_getpid (pid_t oldval)
{
  if (__builtin_expect (oldval == 0, 1))
    {
      pid_t selftid = THREAD_GETMEM (THREAD_SELF, tid);
      if (__builtin_expect (selftid != 0, 1))
	return selftid;
     }

  INTERNAL_SYSCALL_DECL (err);
  pid_t result = INTERNAL_SYSCALL (getpid, err, 0);

  /* We do not set the PID field in the TID here since we might be
     called from a signal handler while the thread executes fork.  */
  if (oldval == 0)
    THREAD_SETMEM (THREAD_SELF, tid, result);
  return result;
}

As a side issue, gdb can't single step over mfctl instruction ;(

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:46 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Question about execve.
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On Sun, 28 Mar 2010, Carlos O'Donell wrote:

> Broken how?

See other mail.

> A small note about getpid():
> 
> Since the parent and child share the same memory space, the parent
> temporarily negates the cached PID value just before the vfork. Only
> the parent, after the vfork, restores the cached PID. This is on
> purpose to prevent any functions like PID-related functions from
> working in the child() during the window bewteen vfork and execve.

Ok, it might be glibc that's broken (i.e., it doesn't restore correct
dave).

> The printf call in the child path is ABSOLUTELY wrong, but I wanted to
> see what the return was. You could equally well insert:
> 
> #define ABORT_INSTRUCTION asm ("iitlbp %r0,(%sr0, %r0)")

Tried that and it didn't trigger.

> > My guess would be that the parent is not blocked leading to corruption.
> 
> What I see is that the child is returning from the kernel execve, and
> continuing to execute.

Hmmm, I'm not seeing that, but I do have the patch installed that
reloads %r16 after calling schedule.  %r16 isn't clobbered by the
call but I believe %cr30 can change.  As a result, we may run a task
with the wrong registers with the current code.

See <http://article.gmane.org/gmane.linux.ports.parisc/2687>.

> If I use ABORT_INSTRUCTION in the child right after the execve I see this:

Already tried this.

> carlos@firin:~/fsrc/vforkfailure/test$ ./vfork
> Illegal instruction
> carlos@firin:~/fsrc/vforkfailure/test$ In child 28734
> 
> This makes *no* sense.
> 
> What I don't understand is this:
> 
> * vfork'd child shares memory space with parent, therefore space id
> has to be the same?

Sounds right.

> * Does execve give the process a new space id or does it simply
> overwrite the entire process image?
> 
> So I had the test case try to exec a binary that just calls ABORT_INSTRUCTION.
> 
> What I noticed is the following:
> 
> carlos@firin:~/fsrc/vforkfailure/test$ ./vfork
> parent sr3 is 0x3428000
> Illegal instruction
> 
> There are 2 entries in dmesg:
> vfork (pid 28964): Illegal instruction (code 8) at 00000000000106a7
> main (pid 28965): Illegal instruction (code 8) at 00000000000104af
> 
> * The child returning from execve has the same space id as the parent
> e.g. 0x3418000
> * The process run via the execve has a different space id e.g. 0x3418800

That's what I would have expected for execve.

> What is supposed to stop the child, which called execve, from
> returning to the parent?

It's only supposed to happen if there is an error in the execve call.
I think our task scheduling is broken ;(

Could you try my change and see if it helps?

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Mar 28, 2010 at 1:32 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> I tried the vfork.c test case on my c3750 with 32-bit kernel. =A0It
>> didn't segv in a limited number of runs. =A0However, I did notice th=
at
>> getpid() is broken after vfork().
>
> The vfork (clone) syscall corrupts (i.e., inserts wrong value)
> the parent tid. =A0In the following, I disabled the printf's and
> execve call in Carlos's testcase. =A0The child just does _exit().

The vfork syscall goes through process.c (sys_vfork) which doesn't
tell the kernel about the parent_tidptr, or child_tidptr (passes NULL
for both).

The kernel shouldn't be touching the parent tid pointer at all.

The vfork wrapper in glibc *does* negate the cached PID value, such
that the child doesn't see a valid PID value until after execve
completes.

> The fast path through getpid is:
>
> Dump of assembler code for function getpid:
> 0x0001ad2c <getpid+0>: =A0stw rp,-14(sp)
> 0x0001ad30 <getpid+4>: =A0mfctl tr3,r20
> 0x0001ad34 <getpid+8>: =A0ldw -414(r20),r19
> 0x0001ad38 <getpid+12>: cmpib,>=3D 0,r19,0x1ad48 <getpid+28>
> 0x0001ad3c <getpid+16>: copy r19,ret0
> 0x0001ad40 <getpid+20>: ldw -14(sp),rp
> 0x0001ad44 <getpid+24>: bv,n r0(rp)
>
> Breakpoint 3, 0x0001ad34 in getpid ()
> (gdb) del 2
> (gdb) p/x $r20
> $6 =3D 0x9a480
>
> Breakpoint 4, main () at vfork.c:17
> 17 =A0 =A0 =A0 =A0child =3D vfork();
> (gdb) x/x 0x9a480 - 0x414
> 0x9a06c: =A0 =A0 =A0 =A00x00000000
> (gdb) c
> Continuing.

This is the PID of the parent, not the TID. They are actually two
different fields.

nptl/descr.h
~~~
  /* Thread ID - which is also a 'is this thread descriptor (and
     therefore stack) used' flag.  */
  pid_t tid;

  /* Process ID - thread group ID in kernel speak.  */
  pid_t pid;
~~~

The PID of all the threads in a process group is the same.

Each thread has a unique TID, which is

During the vfork the parent does this:
~~~
 /* Load thread register. */
 mfctl %cr27, %r26 !
 /* Load cached parent PID. */
 ldw -1044(%r26),%r1 !
 /* Negate it, such that the child runs with
    a negative PID and no functions work until
    the execve. */
 sub %r0,%r1,%r1 !
 /* Store it back. */
 stw %r1,-1044(%r26) !
~~~

> Breakpoint 3, 0x0001ad34 in getpid ()
> (gdb) x/x 0x9a480 - 0x414
> 0x9a06c: =A0 =A0 =A0 =A00x10101364

I don't see how this is the negative of 0x0, it should just be 0x0. I
wonder what changed it.

> Breakpoint 4, main () at vfork.c:17
> 17 =A0 =A0 =A0 =A0child =3D vfork();
> (gdb) x/64x 0x9a040
> 0x9a040: =A0 =A0 =A0 =A00x00000000 =A0 =A0 =A00x00000000 =A0 =A0 =A00=
x00000000 =A0 =A0 =A00x00000000
> 0x9a050: =A0 =A0 =A0 =A00x00000000 =A0 =A0 =A00x00000000 =A0 =A0 =A00=
x00000000 =A0 =A0 =A00x00000000
> 0x9a060: =A0 =A0 =A0 =A00x00000000 =A0 =A0 =A00x00000000 =A0 =A0 =A00=
x00000000 =A0 =A0 =A00x00000000
> 0x9a070: =A0 =A0 =A0 =A00x00000000 =A0 =A0 =A00x00000000 =A0 =A0 =A00=
x00000000 =A0 =A0 =A00x00000000
> 0x9a080: =A0 =A0 =A0 =A00xc0521150 =A0 =A0 =A00x00000000 =A0 =A0 =A00=
x00000000 =A0 =A0 =A00x00000000
>
> Breakpoint 3, 0x0001ad34 in getpid ()
> (gdb) x/64x 0x9a040
> 0x9a040: =A0 =A0 =A0 =A00x00000000 =A0 =A0 =A00x00000000 =A0 =A0 =A00=
x00000000 =A0 =A0 =A00x00000000
> 0x9a050: =A0 =A0 =A0 =A00x00000000 =A0 =A0 =A00x00000000 =A0 =A0 =A00=
x00000000 =A0 =A0 =A00x00000000
> 0x9a060: =A0 =A0 =A0 =A00x00000000 =A0 =A0 =A00x00000000 =A0 =A0 =A00=
x00000000 =A0 =A0 =A00x10101364
> 0x9a070: =A0 =A0 =A0 =A00x00000000 =A0 =A0 =A00x00000000 =A0 =A0 =A00=
x00000000 =A0 =A0 =A00x00000000
> 0x9a080: =A0 =A0 =A0 =A00xc03ae150 =A0 =A0 =A00x00000000 =A0 =A0 =A00=
x00000000 =A0 =A0 =A00x00000000
>
> So, the only location changed by vfork is the parent tid.

s/tid/pid/g.

> dave@hiauly6:~$ strace ./vfork
> execve("./vfork", ["./vfork"], [/* 16 vars */]) =3D 0
> newuname({sys=3D"Linux", node=3D"hiauly6", ...}) =3D 0
> brk(0) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0=3D 0x9a000
> brk(0x9acb4) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=3D=
 0x9acb4
> brk(0xbbcb4) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=3D=
 0xbbcb4
> brk(0xbc000) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=3D=
 0xbc000
> clone(child_stack=3D0, flags=3DCLONE_CHILD_CLEARTID|CLONE_CHILD_SETTI=
D|SIGCHLD, child_tidptr=3D0x9a068) =3D 6212
> fstat64(0x1, 0xc0258a08) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=3D 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,=
 0) =3D 0x40000000
> write(1, "parent is 269488996\n", 20parent is 269488996
> ) =A0 =3D 20
> exit_group(0) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =3D=
 ?
>
> (gdb) p/x 269488996
> $1 =3D 0x10101364
>
> I believe this is the "getpid" implementation:
>
> static inline __attribute__((always_inline)) pid_t
> really_getpid (pid_t oldval)
> {
> =A0if (__builtin_expect (oldval =3D=3D 0, 1))
> =A0 =A0{
> =A0 =A0 =A0pid_t selftid =3D THREAD_GETMEM (THREAD_SELF, tid);
> =A0 =A0 =A0if (__builtin_expect (selftid !=3D 0, 1))
> =A0 =A0 =A0 =A0return selftid;
> =A0 =A0 }
>
> =A0INTERNAL_SYSCALL_DECL (err);
> =A0pid_t result =3D INTERNAL_SYSCALL (getpid, err, 0);
>
> =A0/* We do not set the PID field in the TID here since we might be
> =A0 =A0 called from a signal handler while the thread executes fork. =
=A0*/
> =A0if (oldval =3D=3D 0)
> =A0 =A0THREAD_SETMEM (THREAD_SELF, tid, result);
> =A0return result;
> }
>
> As a side issue, gdb can't single step over mfctl instruction ;(

We'll fix gdb next :-)

Cheers,
Carlos.
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On Sun, Mar 28, 2010 at 2:00 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> Ok, it might be glibc that's broken (i.e., it doesn't restore correct
> dave).

I don't think this is broken.

>> The printf call in the child path is ABSOLUTELY wrong, but I wanted to
>> see what the return was. You could equally well insert:
>>
>> #define ABORT_INSTRUCTION asm ("iitlbp %r0,(%sr0, %r0)")
>
> Tried that and it didn't trigger.

OK, your kernel is perhaps fixed?

>> > My guess would be that the parent is not blocked leading to corruption=
.
>>
>> What I see is that the child is returning from the kernel execve, and
>> continuing to execute.
>
> Hmmm, I'm not seeing that, but I do have the patch installed that
> reloads %r16 after calling schedule. =A0%r16 isn't clobbered by the
> call but I believe %cr30 can change. =A0As a result, we may run a task
> with the wrong registers with the current code.

When schedule returns you are either still in the current process, or
have switched to another process via arch/parisc/kernel/entry.S
(_switch_to), so yes %cr30 will have been changed and must be reloaded
(kernel threads IIUC don't have their own register state, you are
simply just switching %cr30 around and reloading the appropriate
pt_regs).

Where are the new space ids loaded into the space registers for the new pro=
cess?

> See <http://article.gmane.org/gmane.linux.ports.parisc/2687>.

Applied.

> It's only supposed to happen if there is an error in the execve call.
> I think our task scheduling is broken ;(
>
> Could you try my change and see if it helps?

It doesn't help.

Just so we are on the same page, please find attached vforktest.tgz.
Unpack it.
Run ./build.sh
Run ./vfork

What are the results on your machine?

I'm running a 64-bit kernel 2.6.32 (kyle's tree) SMP two PA8700's at 650MHz=
.

Cheers,
Carlos.

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From - Thu Nov 08 21:05:46 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: Question about execve.
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> > A small note about getpid():
> > 
> > Since the parent and child share the same memory space, the parent
> > temporarily negates the cached PID value just before the vfork. Only
> > the parent, after the vfork, restores the cached PID. This is on
> > purpose to prevent any functions like PID-related functions from
> > working in the child() during the window bewteen vfork and execve.
> 
> Ok, it might be glibc that's broken (i.e., it doesn't restore correct
> dave).

The bad value is stored here:

0x0003f578 <fork+700>:	ldil L%7b800,r26
0x0003f57c <fork+704>:	b,l 0x35d74 <_IO_list_unlock>,rp
0x0003f580 <fork+708>:	stw r19,-414(r6)
(gdb) p/x $r19
$2 = 0x10101364

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:46 2018
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Newsgroups: gmane.linux.ports.parisc
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> The bad value is stored here:
> 
> 0x0003f578 <fork+700>:	ldil L%7b800,r26
> 0x0003f57c <fork+704>:	b,l 0x35d74 <_IO_list_unlock>,rp
> 0x0003f580 <fork+708>:	stw r19,-414(r6)
> (gdb) p/x $r19
> $2 = 0x10101364

%r19 is clobbered by the clone syscall:

(gdb) disass 0x0003f44c 0x0003f458
Dump of assembler code from 0x3f44c to 0x3f458:
0x0003f44c <fork+400>:	be,l 100(sr2,r0),sr0,r31
0x0003f450 <fork+404>:	ldi 78,r20
0x0003f454 <fork+408>:	nop

Breakpoint 5, 0x0003f44c in fork ()
(gdb) p/x $r19
$6 = 0x0

Breakpoint 4, 0x0003f454 in fork ()
(gdb) p/x $r19
$7 = 0x10101364

Same value for %r19 is returned for both parent and child.

This is using application linked with -static (i.e., libc.a).  Probably,
shared lib is different.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Mar 28, 2010 at 3:31 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> The bad value is stored here:
>>
>> 0x0003f578 <fork+700>: =A0 =A0 =A0 =A0ldil L%7b800,r26
>> 0x0003f57c <fork+704>: =A0 =A0 =A0 =A0b,l 0x35d74 <_IO_list_unlock>,=
rp
>> 0x0003f580 <fork+708>: =A0 =A0 =A0 =A0stw r19,-414(r6)
>> (gdb) p/x $r19
>> $2 =3D 0x10101364
>
> %r19 is clobbered by the clone syscall:

This is a known issue with the kernel assembly, fork, vfork, and clone
all clobber r19, which is why glibc saves/restore r19 across
syscalls... but only in the PIC case.

ARCH_FORK ->
  INLINE_SYSCALL (clone, 5,                                            =
 \
                  CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, =
 \
                  NULL, NULL, NULL, &THREAD_SELF->tid)

INLINE_SYSCALL does:
                asm volatile(                                          =
 \
                        SAVE_ASM_PIC                                   =
 \
                        "       ble  0x100(%%sr2, %%r0)\n"             =
 \
                        "       ldi %1, %%r20\n"                       =
 \
                        LOAD_ASM_PIC                                   =
 \
                        : "=3Dr" (__res)                               =
   \
                        : "i" (SYS_ify(name)) PIC_REG_USE ASM_ARGS_##nr=
 \
                        : "memory", CALL_CLOB_REGS CLOB_ARGS_##nr      =
 \
                );                                                     =
 \

So r19 is saved/restored around the clone syscall, but *ONLY* if the
code is PIC.

Therefore in your non-PIC case it will corrupt r19.

Actually, looking at the fork/vfork/clone wrappers in entry.S they
clobber two registers:

        /* These are call-clobbered registers and therefore
           also syscall-clobbered (we hope). */
        STREG   %r2,PT_GR19(%r1)        /* save for child */
        STREG   %r30,PT_GR21(%r1)

It would appear that r21 is also clobbered.

Does this mean that we need to either (a) fix the kernel to stop
clobbering r19 and r21 or fix userspace?

I'm inclined to think the kernel is wrong, and lazy here, and pt_regs
should have another PT_GR2_CHILD and PT_GR30_CHILD entries for the
case above.

Comments?

> (gdb) disass 0x0003f44c 0x0003f458
> Dump of assembler code from 0x3f44c to 0x3f458:
> 0x0003f44c <fork+400>: =A0be,l 100(sr2,r0),sr0,r31
> 0x0003f450 <fork+404>: =A0ldi 78,r20
> 0x0003f454 <fork+408>: =A0nop
>
> Breakpoint 5, 0x0003f44c in fork ()
> (gdb) p/x $r19
> $6 =3D 0x0
>
> Breakpoint 4, 0x0003f454 in fork ()
> (gdb) p/x $r19
> $7 =3D 0x10101364
>
> Same value for %r19 is returned for both parent and child.
>
> This is using application linked with -static (i.e., libc.a). =A0Prob=
ably,
> shared lib is different.

I hope my explanation above shows why r19 is clobbered.

I hadn't thought about the static case and a non-PIC register use of r1=
9.

Cheers,
Carlos.
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On Sun, Mar 28, 2010 at 4:22 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> Does this mean that we need to either (a) fix the kernel to stop
>> clobbering r19 and r21 or fix userspace?
>
> r21 is an syscall argument register and it looks like CLOB_ARGS_*
> handles it. =A0So, I doubt we need to worry about about r21.

Right.

>> I'm inclined to think the kernel is wrong, and lazy here, and pt_reg=
s
>> should have another PT_GR2_CHILD and PT_GR30_CHILD entries for the
>> case above.
>
> Fixing the kernel will fix broken userspace code. =A0Fixing glibc to
> save and restore r19 in non-PIC code will allow new code to work
> with broken kernels. =A0Thus, I tend to think both should be fixed.

Agreed, I'll get a fix for this into glibc.

> Instead of using PT_GR19 and PT_GR21, can't we use PT_SR4 and PT_SR5
> to store r2 and r30 for the child. =A0We don't seem to ever actually
> save sr4 or sr5 in the syscall path and we restore fixed values.
> This is a hack, but avoids increasing the size of the task structure.

I don't like hacks like this. They are confusing and hard to maintain.

Cheers,
Carlos.
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On Sun, Mar 28, 2010 at 5:01 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> > Instead of using PT_GR19 and PT_GR21, can't we use PT_SR4 and PT_S=
R5
>> > to store r2 and r30 for the child. =A0We don't seem to ever actual=
ly
>> > save sr4 or sr5 in the syscall path and we restore fixed values.
>> > This is a hack, but avoids increasing the size of the task structu=
re.
>>
>> I don't like hacks like this. They are confusing and hard to maintai=
n.
>
> However, it says in ptrace.h:
>
> =A0* N.B. gdb/strace care about the size and offsets within this
> =A0* structure. If you change things, you may break object compatibil=
ity
> =A0* for those applications.
>
> There is one free slot in pt_regs:
>
> =A0 =A0 =A0 =A0unsigned long pad0; =A0 =A0 /* available for other use=
s */
>
> Given that this struct leaks to userspace, I don't think we should
> mess with it.

Maybe. I would certainly test this out before adding new entries.

If I provide you with a new glibc with the r19 fix would you be able
to test it out?

Cheers,
Carlos.
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On Sun, Mar 28, 2010 at 5:21 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> If I provide you with a new glibc with the r19 fix would you be able
>> to test it out?
>
> Yes.

I know it's easier to debug a static application for these cases, so I
think a fixed glibc will help.

I have an unstable libc6 currently building with the changes to
save/restore r19 in all cases.

We still aren't any closer to explaining why my shared case doesn't work.

I still don't have a good answer to this question:

* What prevents the execve from returning to userspace?

Cheers,
Carlos.
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On Sun, 28 Mar 2010, Carlos O'Donell wrote:

> On Sun, Mar 28, 2010 at 5:21 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> >> If I provide you with a new glibc with the r19 fix would you be able
> >> to test it out?
> >
> > Yes.
> 
> I know it's easier to debug a static application for these cases, so I
> think a fixed glibc will help.

Yes.

It's proving more difficult than I thought to fix the kernel and
I'm not sure I understand how this works:

        LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
	LDREG   TASK_PT_GR19(%r1),%r2
	b       wrapper_exit
	copy    %r0,%r28

It appears the child has to access the parent's pt_regs struct
to load the return for the child.

> I have an unstable libc6 currently building with the changes to
> save/restore r19 in all cases.

Great.

> We still aren't any closer to explaining why my shared case doesn't work.
> 
> I still don't have a good answer to this question:
> 
> * What prevents the execve from returning to userspace?

I presume you mean the caller's userspace.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Mar 28, 2010 at 7:59 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> I know it's easier to debug a static application for these cases, so=
 I
>> think a fixed glibc will help.
>
> Yes.
>
> It's proving more difficult than I thought to fix the kernel and
> I'm not sure I understand how this works:
>
> =A0 =A0 =A0 =A0LDREG =A0 TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE=
(%r30), %r1
> =A0 =A0 =A0 =A0LDREG =A0 TASK_PT_GR19(%r1),%r2
> =A0 =A0 =A0 =A0b =A0 =A0 =A0 wrapper_exit
> =A0 =A0 =A0 =A0copy =A0 =A0%r0,%r28
>
> It appears the child has to access the parent's pt_regs struct
> to load the return for the child.

I see that copy_process in do_fork will give the child a copy of the
entire pt_reg structure so it has access to these values anyway?

>> * What prevents the execve from returning to userspace?
>
> I presume you mean the caller's userspace.

Yes, the process that calls execve.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:47 2018
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Subject: Re: Question about execve.
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On Sun, 28 Mar 2010, Carlos O'Donell wrote:

> On Sun, Mar 28, 2010 at 7:59 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> >> I know it's easier to debug a static application for these cases, =
so I
> >> think a fixed glibc will help.
> >
> > Yes.
> >
> > It's proving more difficult than I thought to fix the kernel and
> > I'm not sure I understand how this works:
> >
> > =A0 =A0 =A0 =A0LDREG =A0 TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SI=
ZE(%r30), %r1
> > =A0 =A0 =A0 =A0LDREG =A0 TASK_PT_GR19(%r1),%r2
> > =A0 =A0 =A0 =A0b =A0 =A0 =A0 wrapper_exit
> > =A0 =A0 =A0 =A0copy =A0 =A0%r0,%r28
> >
> > It appears the child has to access the parent's pt_regs struct
> > to load the return for the child.
>=20
> I see that copy_process in do_fork will give the child a copy of the
> entire pt_reg structure so it has access to these values anyway?

I got a kernel to boot which shouldn't clobber r19.  Turned out to
be a typo.  This uses PT_SR4 for the kernel return for the child.
Will test with gcc build.

Will try again using the pad0 field later.

Dave
--=20
J. David Anglin                                  dave.anglin@nrc-cnrc.g=
c.ca
National Research Council of Canada              (613) 990-0752 (FAX: 9=
52-6602)
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On Sun, Mar 28, 2010 at 10:38 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> On Sun, 28 Mar 2010, Carlos O'Donell wrote:
>
>> On Sun, Mar 28, 2010 at 7:59 PM, John David Anglin
>> <dave@hiauly1.hia.nrc.ca> wrote:
>> >> I know it's easier to debug a static application for these cases,=
 so I
>> >> think a fixed glibc will help.
>> >
>> > Yes.
>> >
>> > It's proving more difficult than I thought to fix the kernel and
>> > I'm not sure I understand how this works:
>> >
>> > =A0 =A0 =A0 =A0LDREG =A0 TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_S=
IZE(%r30), %r1
>> > =A0 =A0 =A0 =A0LDREG =A0 TASK_PT_GR19(%r1),%r2
>> > =A0 =A0 =A0 =A0b =A0 =A0 =A0 wrapper_exit
>> > =A0 =A0 =A0 =A0copy =A0 =A0%r0,%r28
>> >
>> > It appears the child has to access the parent's pt_regs struct
>> > to load the return for the child.
>>
>> I see that copy_process in do_fork will give the child a copy of the
>> entire pt_reg structure so it has access to these values anyway?
>
> I got a kernel to boot which shouldn't clobber r19. =A0Turned out to
> be a typo. =A0This uses PT_SR4 for the kernel return for the child.
> Will test with gcc build.
>
> Will try again using the pad0 field later.

Sorry, what turned out to be a typo?

I guess any static binary that calls fork/vfork/clone is susceptible
to corruption of r19 in this way.

I don't know how much that effects userspace, since most is shared,
*however* the dynamic linker is technically a static binary :-)

Cheers,
Carlos.
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Mon, 29 Mar 2010, Carlos O'Donell wrote:

> > I got a kernel to boot which shouldn't clobber r19. =A0Turned out t=
o
> > be a typo. =A0This uses PT_SR4 for the kernel return for the child.
> > Will test with gcc build.
> >
> > Will try again using the pad0 field later.
>=20
> Sorry, what turned out to be a typo?

I used PT_SR4 instead of TASK_PT_SR4 in child_return ;(

> I guess any static binary that calls fork/vfork/clone is susceptible
> to corruption of r19 in this way.
>=20
> I don't know how much that effects userspace, since most is shared,
> *however* the dynamic linker is technically a static binary :-)

The change may not fix much, but there's no technical reason that
the kernel needs to clobber r19.

Dave
--=20
J. David Anglin                                  dave.anglin@nrc-cnrc.g=
c.ca
National Research Council of Canada              (613) 990-0752 (FAX: 9=
52-6602)
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On Mon, Mar 29, 2010 at 12:13 PM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> 2010/3/29 NIIBE Yutaka <gniibe@fsij.org>:
>> I am currently investigating FTBFS of gauche (a scheme interpreter) =
on
>> hppa. =A0My knowledge of hppa is quite limited, though. =A0I am not =
on
>> this list. =A0Please send Cc: to me.
>>
>> I have a question of CAS implementation. =A0I assume uni processor
>> system.
>>
>> I am looking at:
>> =A0 =A0 =A0 =A0linux-source-2.6.30/arch/parisc/kernel/syscall.S
>>
>> ----------------
>> =A0 =A0 =A0 =A0/*
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0prev =3D *addr;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if ( prev =3D=3D old )
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0*addr =3D new;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0return prev;
>> =A0 =A0 =A0 =A0*/
>> [...]
>> cas_action:
>> [...]
>> =A0 =A0 =A0 =A0/* The load and store could fail */
>> 1: =A0 =A0 =A0ldw =A0 =A0 0(%sr3,%r26), %r28
>> =A0 =A0 =A0 =A0sub,<> =A0%r28, %r25, %r0
>> 2: =A0 =A0 =A0stw =A0 =A0 %r24, 0(%sr3,%r26)
>> ----------------
>>
>> Suppose that <addr> points to copy-on-write memory. =A0At the label =
2,
>> storing data to <addr> will invoke memory trap and it will go to
>> do_page_fault() to get new memory. =A0In this scenario, is there a
>> possibility for the process to be scheduled off?
>>
>> Call chain in question is:
>> =A0 =A0 =A0 =A0do_page_fault()
>> =A0 =A0 =A0 =A0 =A0->..-> do_wp_page()
>> =A0 =A0 =A0 =A0 =A0 =A0->..-> __alloc_pages_internal() with GFP_HIGH=
USER_MOVABLE
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0->..> schedule()
>>
>> linux/gfp.h has the definition:
>> #define GFP_HIGHUSER_MOVABLE =A0 =A0(__GFP_WAIT | __GFP_IO | __GFP_F=
S | \
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 __GF=
P_HARDWALL | __GFP_HIGHMEM | \
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 __GF=
P_MOVABLE)
>
> I wrote the LWS CAS implementation.
>
> At the time I wrote it I tried to verify that the process calling the
> CAS could never sleep, since this would make it non-atomic.
>
> There are checks in entry.S to prevent return code-paths from
> scheduling or delivering signals if the process was executing on the
> gateway page.
>
> If we are certain that the above could happen, then a possible soluti=
on is:
> * Enable locks for SMP and UP.
> * If lock is taken for your addresss, return to userspace with EAGAIN=
=2E
> * Userspace yields on EAGAIN and then tries again (we can't use
> FUTEX_WAIT/FUTEX_WAKE on a global process unique variable because LWS
> CAS is expected to work on shmem).
>
> Do we really think the above can happen?

I have CC'd the linux-parisc kernel list.

Kyle,

Do you think the above scenario is possible?

When trying to LWS CAS on a page that is COW, the copy process could
sleep, and thus CAS is non-atomic.

What do you think about the solution I propose?

Cheers,
Carlos.
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On Mon, Mar 29, 2010 at 03:31:55PM -0400, Carlos O'Donell wrote:
>

Can you bounce me the whole thread, please?

regards, Kyle
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From - Thu Nov 08 21:05:48 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: CAS (lws_compare_and_swap32)
Date: Mon, 29 Mar 2010 21:54:56 -0400
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Mon, 29 Mar 2010, Carlos O'Donell wrote:

> >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0prev =3D *addr;
> >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if ( prev =3D=3D old )
> >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0*addr =3D new;
> >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0return prev;
> >> =A0 =A0 =A0 =A0*/
> >> [...]
> >> cas_action:
> >> [...]
> >> =A0 =A0 =A0 =A0/* The load and store could fail */
> >> 1: =A0 =A0 =A0ldw =A0 =A0 0(%sr3,%r26), %r28
> >> =A0 =A0 =A0 =A0sub,<> =A0%r28, %r25, %r0
> >> 2: =A0 =A0 =A0stw =A0 =A0 %r24, 0(%sr3,%r26)
> >> ----------------
> >>
> >> Suppose that <addr> points to copy-on-write memory. =A0At the labe=
l 2,
> >> storing data to <addr> will invoke memory trap and it will go to
> >> do_page_fault() to get new memory. =A0In this scenario, is there a
> >> possibility for the process to be scheduled off?

> > At the time I wrote it I tried to verify that the process calling t=
he
> > CAS could never sleep, since this would make it non-atomic.
> >
> > There are checks in entry.S to prevent return code-paths from
> > scheduling or delivering signals if the process was executing on th=
e
> > gateway page.
> >
> > If we are certain that the above could happen, then a possible solu=
tion is:
> > * Enable locks for SMP and UP.
> > * If lock is taken for your addresss, return to userspace with EAGA=
IN.
> > * Userspace yields on EAGAIN and then tries again (we can't use
> > FUTEX_WAIT/FUTEX_WAKE on a global process unique variable because L=
WS
> > CAS is expected to work on shmem).

I think the solution may be to proceed the CAS sequence with a probe,w
instruction.  This will trigger a non-access TLB miss fault/non-access
data page fault if its going to happen.  There is a FIXME for case 17
in handle_interruption about this.

Dave
--=20
J. David Anglin                                  dave.anglin@nrc-cnrc.g=
c.ca
National Research Council of Canada              (613) 990-0752 (FAX: 9=
52-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: CAS (lws_compare_and_swap32)
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On Mon, Mar 29, 2010 at 9:54 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> I think the solution may be to proceed the CAS sequence with a probe,=
w
> instruction. =A0This will trigger a non-access TLB miss fault/non-acc=
ess
> data page fault if its going to happen. =A0There is a FIXME for case =
17
> in handle_interruption about this.

Then what though? One process has to write to the page to initiate the
COW. How else are you going to initiate the COW? Once in userspace you
are only allowed to write to the CAS value (one word on a page), and
you *can't* because that would violate the CAS semantics and atomicity
requirements.

The "first" process must take the lock, has to write the result to the
page, has to initiate the COW, has to sleep with the lock held, and
the rest have to spin in userpace waiting for it to complete.

AFAICT the rest of the processes are not be able to stop the "first"
process from finishing the COW, so we make forward progress after the
COW is done and the "first" process resumes and unlocks the LWS CAS
lock (for that address range).

Cheers,
Carlos.
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From - Thu Nov 08 21:05:48 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: CAS (lws_compare_and_swap32)
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On Mon, Mar 29, 2010 at 4:07 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> Can you bounce me the whole thread, please?

You saw the whole thread :-)

Niibe-san has pointed out that if you call LWS CAS on an address of a
shared page, that the COW process may call schedule and sleep, leaving
a small window for a race condition.

On SMP I don't think there is a problem:
* Thread A takes kernel LWS CAS lock.
* Thread A writes to CAS address causing COW
* Thread A sleeps.
* Thread B tries to take kernel LWS CAS lock, fails, returns EAGAIN to
userspace.
* Thread A eventually completes releasing kernel LWS CAS lock.
* Thread B finally takes kernel LWS CAS lock and carries out CAS operation.

Even though Thread A sleeps, there is no way to send it a signal at
this point. All signal delivery is initiated only via PA assembly in
entry.S/syscall.S and that avoids delivering a signal (do_signal, and
do_notify_resume not called) if execution is on the gateway page.

On UP you have a problem:
* Thread A enters LWS CAS (no lock on UP)
* Thread A writes to CAS address causing COW
* Thread A sleeps.
* Thread A completes COW, but finishes time slice before the write is restarted.
* Thread B enters LWS CAS (no lock on UP)
* Thread B writes to CAS address, and finishes time slice.
* Thread A writes to CAS address and clobbers B's value.

The solution is to add the locks to the UP case to avoid this problem.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:48 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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On Tue, Mar 30, 2010 at 04:38:08PM -0400, Carlos O'Donell wrote:
> * Thread A enters LWS CAS (no lock on UP)
> * Thread A writes to CAS address causing COW
> * Thread A sleeps.
> * Thread A completes COW, but finishes time slice before the write is restarted.
> * Thread B enters LWS CAS (no lock on UP)
> * Thread B writes to CAS address, and finishes time slice.
> * Thread A writes to CAS address and clobbers B's value.
> 
> The solution is to add the locks to the UP case to avoid this problem.
> 

Yes, removing the CONFIG_SMP on that bit looks like it will solve the
problem.

regards, Kyle
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On Mon, Mar 29, 2010 at 10:02 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> The change may not fix much, but there's no technical reason that
> the kernel needs to clobber r19.

Rebuilt 2.10.2-6 here with r19 save for all cases.

http://www.parisc-linux.org/~carlos/saver19/

Two regressions during build, but they appear unrelated.

Could you test this in a chroot and tell me if it works for you?

Cheers,
Carlos.
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From - Thu Nov 08 21:05:48 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: FSF GDB 7.1.50 from CVS head works better than GDB in Debian 
	unstable.
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Dave,

The FSF GDB 7.1.50 from CVS head performs much better than the default
GDB in Debian unstable.

I highly recommend building it from source and using it for debugging.

It also has the new `=>` PC pointer when you dissassemble...

   0x413deed4 <+220>:   cmpb,= ret0,ret1,0x413def44 <_dl_make_fptr+332>
   0x413deed8 <+224>:   shladd,l rp,3,r5,rp
=> 0x413deedc <+228>:   ldw 8(r5),ret1
   0x413deee0 <+232>:   ldw 4(r5),ret0
   0x413deee4 <+236>:   cmpb,<<= ret0,ret1,0x413deffc <_dl_make_fptr+516>
   0x413deee8 <+240>:   ldo 1(ret1),rp

Which is handy.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:48 2018
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Subject: CFI directives.
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Dave,

I've added CFI directives to all of the syscall stubs in glibc, do you
see anything wrong with that?

I have not yet added CFI directives for the bespoke *.S implementations.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:48 2018
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> I've added CFI directives to all of the syscall stubs in glibc, do you
> see anything wrong with that?

No, it should help debugging and unwind.  There were a few binutils
issues with CFI support originally, but these should be fixed.  GCC
has been generating them since 4.4.0. if I remember correctly

> I have not yet added CFI directives for the bespoke *.S implementations.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Any assembly constant generated with the use of
align_frame includes size for a full stack frame.

Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>

diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index ec787b4..0a719f2 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -45,8 +45,12 @@
 #else
 #define FRAME_SIZE	64
 #endif
+#define FRAME_ALIGN	64

-#define align(x,y) (((x)+FRAME_SIZE+(y)-1) - (((x)+(y)-1)%(y)))
+/* Add FRAME_SIZE to the size x and align it to y. All definitions
+ * that use align_frame will include space for a frame.
+ */
+#define align_frame(x,y) (((x)+FRAME_SIZE+(y)-1) - (((x)+(y)-1)%(y)))

 int main(void)
 {
@@ -146,7 +150,8 @@ int main(void)
 	DEFINE(TASK_PT_IOR, offsetof(struct task_struct, thread.regs.ior));
 	BLANK();
 	DEFINE(TASK_SZ, sizeof(struct task_struct));
-	DEFINE(TASK_SZ_ALGN, align(sizeof(struct task_struct), 64));
+	/* TASK_SZ_ALGN includes space for a stack frame. */
+	DEFINE(TASK_SZ_ALGN, align_frame(sizeof(struct task_struct), FRAME_ALIGN));
 	BLANK();
 	DEFINE(PT_PSW, offsetof(struct pt_regs, gr[ 0]));
 	DEFINE(PT_GR1, offsetof(struct pt_regs, gr[ 1]));
@@ -233,7 +238,8 @@ int main(void)
 	DEFINE(PT_ISR, offsetof(struct pt_regs, isr));
 	DEFINE(PT_IOR, offsetof(struct pt_regs, ior));
 	DEFINE(PT_SIZE, sizeof(struct pt_regs));
-	DEFINE(PT_SZ_ALGN, align(sizeof(struct pt_regs), 64));
+	/* PT_SZ_ALGN includes space for a stack frame. */
+	DEFINE(PT_SZ_ALGN, align_frame(sizeof(struct pt_regs), FRAME_ALIGN));
 	BLANK();
 	DEFINE(TI_TASK, offsetof(struct thread_info, task));
 	DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
@@ -242,7 +248,8 @@ int main(void)
 	DEFINE(TI_SEGMENT, offsetof(struct thread_info, addr_limit));
 	DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
 	DEFINE(THREAD_SZ, sizeof(struct thread_info));
-	DEFINE(THREAD_SZ_ALGN, align(sizeof(struct thread_info), 64));
+	/* THREAD_SZ_ALGN includes space for a stack frame. */
+	DEFINE(THREAD_SZ_ALGN, align_frame(sizeof(struct thread_info), FRAME_ALIGN));
 	BLANK();
 	DEFINE(ICACHE_BASE, offsetof(struct pdc_cache_info, ic_base));
 	DEFINE(ICACHE_STRIDE, offsetof(struct pdc_cache_info, ic_stride));
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> Any assembly constant generated with the use of
> align_frame includes size for a full stack frame.

Does this fix fork?

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Wed, Mar 31, 2010 at 5:09 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> Any assembly constant generated with the use of
>> align_frame includes size for a full stack frame.
>
> Does this fix fork?

Which fork breakage are you talking about? The vfork/execve problem I'm seeing?

The patch is simply additional comments. It fixes my constant
confusion that *_SZ_ALGN constants also includes a size for a frame.

I have several "Clenaup/Add documentation" patches in my tree which I
will push out as I review our *.S files. There were some tricky
assembly instructions that I didn't know what they did, so I added
comments, that sort of stuff e.g. or,=,n

I'm still at a loss to explain how the kernel prevents a process,
which has just called execve, from returning to the callers memory
range.

My suspicion is this:
* Parent calls vfork()
* Child calls execve(), which uses start_thread to setup pt_regs.
* Child returns from execve() via syscall_exit and does *not* restore
space registers from pt_regs.
* Child returns to parent's memory space and starts clobbering things.
* Timer tick goes off and switch_to fixes child's space registers and
PC values and child executes correctly.
* Parent continues executing with some minor corruption.

The window exists between the child's return and the next tick, during
that time the child runs free corrupting the parent.

Cheers,
Carlos.
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From - Thu Nov 08 21:05:48 2018
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Subject: Re: parisc: Use of align_frame provides stack frame.
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On Wed, 31 Mar 2010, Carlos O'Donell wrote:

> On Wed, Mar 31, 2010 at 5:09 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> >> Any assembly constant generated with the use of
> >> align_frame includes size for a full stack frame.
> >
> > Does this fix fork?
> 
> Which fork breakage are you talking about? The vfork/execve problem I'm seeing?

There seem to be a lot of them...

I have been looking at another one today.  There were three instances
today running the gcc testsuite.  It seems the parent dies exiting from
fork, returning to location 0.

0x405a378c <fork+700>:  copy r9,ret0
0x405a3790 <fork+704>:  ldw -14(r3),rp
0x405a3794 <fork+708>:  ldw 10(r3),r10
0x405a3798 <fork+712>:  ldw 14(r3),r9
0x405a379c <fork+716>:  ldw 18(r3),r8
0x405a37a0 <fork+720>:  ldw 1c(r3),r7
0x405a37a4 <fork+724>:  ldw 20(r3),r6
0x405a37a8 <fork+728>:  ldw 24(r3),r5
0x405a37ac <fork+732>:  ldw 28(r3),r4
0x405a37b0 <fork+736>:  ldo 40(r3),sp
0x405a37b4 <fork+740>:  bv r0(rp)
0x405a37b8 <fork+744>:  ldw,mb -40(sp),(gdb) x/x $sp
0xfe001a40:     0xfe0018cc
(gdb) x/16x $sp
0xfe001a40:     0xfe0018cc      0x000e9408      0xffffffff      0x000e6c54
0xfe001a50:     0x00000000      0x00000000      0x00104d88      0x000c36f4
0xfe001a60:     0x00000001      0x00000000      0xfe00194c      0x000e9560
0xfe001a70:     0x4092c000      0x00000000      0x00000001      0xf4000000
(gdb) x/16x $sp - 0x20
0xfe001a20:     0x000e9410      0x000e9408      0x0004771b      0x0004e727
0xfe001a30:     0x00000000      0x00000000      0x000fed68      0x000fedc8
0xfe001a40:     0xfe0018cc      0x000e9408      0xffffffff      0x000e6c54
0xfe001a50:     0x00000000      0x00000000      0x00104d88      0x000c36f4
(gdb) info reg
flags          0x4ff0f  327439
r1             0x0      0
rp             0x0      0
r3             0xfe0018cc       4261419212
r4             0xfe00194c       4261419340
r5             0x0      0
r6             0x1      1
r7             0xc36f4  800500
r8             0x104d88 1068424
r9             0x0      0
r10            0x0      0
(gdb) p/x $ret0
$3 = 0x2776

Registers ret0 and rp seem corrupt.  Registers r3 through r10 contain
the same values as the stack.  The rp value on the stack is 0x0004e727.

(gdb) disass 0x0004e700 0x0004e734
Dump of assembler code from 0x4e700 to 0x4e734:
0x0004e700 <make_child+128>:    cmpib,>= 0,r26,0x4e714 <make_child+148>
0x0004e704 <make_child+132>:    ldil L%c3000,r7
0x0004e708 <make_child+136>:    b,l 0x62c1c <sync_buffered_stream>,rp
0x0004e70c <make_child+140>:    nop
0x0004e710 <make_child+144>:    ldil L%c3000,r7
0x0004e714 <make_child+148>:    ldi 1,r6
0x0004e718 <make_child+152>:    ldo 6f4(r7),r7
0x0004e71c <make_child+156>:    b,l 0x34d60,rp
0x0004e720 <make_child+160>:    nop
0x0004e724 <make_child+164>:    movb,>= ret0,r3,0x4e930 <make_child+688>
0x0004e728 <make_child+168>:    addil L%6800,dp,r1

I believe from looking at the bash code that the call at <make_child+156>
is to fork().

So, the $64 question is how did ret0 and rp get corrupted?

> 
> The patch is simply additional comments. It fixes my constant
> confusion that *_SZ_ALGN constants also includes a size for a frame.
> 
> I have several "Clenaup/Add documentation" patches in my tree which I
> will push out as I review our *.S files. There were some tricky
> assembly instructions that I didn't know what they did, so I added
> comments, that sort of stuff e.g. or,=,n
> 
> I'm still at a loss to explain how the kernel prevents a process,
> which has just called execve, from returning to the callers memory
> range.
> 
> My suspicion is this:
> * Parent calls vfork()
> * Child calls execve(), which uses start_thread to setup pt_regs.
> * Child returns from execve() via syscall_exit and does *not* restore
> space registers from pt_regs.
> * Child returns to parent's memory space and starts clobbering things.
> * Timer tick goes off and switch_to fixes child's space registers and
> PC values and child executes correctly.
> * Parent continues executing with some minor corruption.
> 
> The window exists between the child's return and the next tick, during
> that time the child runs free corrupting the parent.

I'll think about it.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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To: Carlos O'Donell <carlos@systemhalted.org>
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Xref: news.gmane.org gmane.linux.debian.ports.hppa:6334 gmane.linux.ports.parisc:2745
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Hi all, thanks for your attention.

Carlos O'Donell wrote:
> On UP you have a problem:
> * Thread A enters LWS CAS (no lock on UP)
> * Thread A writes to CAS address causing COW
> * Thread A sleeps.
> * Thread A completes COW, but finishes time slice before the write is restarted.
> * Thread B enters LWS CAS (no lock on UP)
> * Thread B writes to CAS address, and finishes time slice.
> * Thread A writes to CAS address and clobbers B's value.

I thought like that:
(condition like a young process, or a process after fork
which occurs COW)
* Thread A enters LWS CAS (no lock on UP)
* Thread A writes to CAS address causing COW
* Thread A sleeps for new memory.
  Kernel process scheduling:
    Thread A sleeps
    -> swapper wakes up and got new memory, then sleep
    -> Thread B wakes up
* Thread B enters LWS CAS (no lock on UP)
* Thread B writes to CAS address, causing COW, this time we have memory.
  Writes completes, and finishes time slice.
  Kernel process scheduling like that:
    Thread B sleeps -> Thread A wakes up
* Thread A writes to CAS address and clobbers B's value.

Today, I have a next question.  Is there any cache alias problem here?
Should we invalidate the cache line before "load" and flush the cache
line after "store"?

I am testing on paer.debian.org.  It says D-cache is wribe back,
and that's my concern.

--------------------------
Welcome to paer.debian.org, the Debian hppa porterbox

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Last login: Wed Mar 31 02:31:27 2010 from 150.82.175.29
gniibe@paer:~$ cat /proc/cpuinfo
processor	: 0
cpu family	: PA-RISC 2.0
cpu		: PA8700 (PCX-W2)
cpu MHz		: 750.000000
capabilities	: os64
model		: 9000/800/A500-7X
model name	: Crescendo 750 W2
hversion	: 0x00005e30
sversion	: 0x00000491
I-cache		: 768 KB
D-cache		: 1536 KB (WB, direct mapped)
ITLB entries	: 240
DTLB entries	: 240 - shared with ITLB
bogomips	: 1495.04
software id	: 822930640

--------------------------
-- 



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NIIBE Yutaka wrote:
> Today, I have a next question.  Is there any cache alias problem here?
> Should we invalidate the cache line before "load" and flush the cache
> line after "store"?

Sorry, I was confused.  We are talking threads which shares memory
context (space identifier), so, my concern is not relevant.
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> Rebuilt 2.10.2-6 here with r19 save for all cases.
>=20
> http://www.parisc-linux.org/~carlos/saver19/

Hi Carlos,

I installed this libc on one of my servers.
I didn't ran any bigger tests yet, but at least it seems to have fixed =
the issue that an ssh into the machine often didn't let me in the first=
 time. Now it just works...

Thanks!
Helge
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Hi Helge,

> I installed this libc on one of my servers.
> I didn't ran any bigger tests yet, but at least it seems to have fixed the issue that an ssh into the machine often didn't let me in the first time. Now it just works...

I think this might be another issue.  Strangely, I used to see this
one my c3750 and it' now gone away.

I originally noticed a problem with Carlos's vfork testcase when compiled
with -static.  The parent pid printed by the parent was corrupted (always
same value) by the vfork call (r19 was not saved across syscall).  If you
check that it now works, the problem is probably fixed in glibc.

I have attached below a kernel fix for this bug.  This allows old user
code to work correctly.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Signed-off-by: John Daqvid Anglin <dave.anglin@nrc-cnrc.gc.ca>

diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index ec787b4..b2f35b2 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -137,6 +137,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -225,6 +226,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3a44f7f..5772cba 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1772,9 +1744,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1804,7 +1776,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1823,8 +1795,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1847,7 +1820,9 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
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From - Thu Nov 08 21:05:49 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: Use of align_frame provides stack frame.
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Wed, 31 Mar 2010, Carlos O'Donell wrote:

> I'm still at a loss to explain how the kernel prevents a process,
> which has just called execve, from returning to the callers memory
> range.
> 
> My suspicion is this:
> * Parent calls vfork()
> * Child calls execve(), which uses start_thread to setup pt_regs.
> * Child returns from execve() via syscall_exit and does *not* restore
> space registers from pt_regs.
> * Child returns to parent's memory space and starts clobbering things.
> * Timer tick goes off and switch_to fixes child's space registers and
> PC values and child executes correctly.
> * Parent continues executing with some minor corruption.
> 
> The window exists between the child's return and the next tick, during
> that time the child runs free corrupting the parent.

I'm thinking we might have the same problem with fork (i.e., child
sometimes starts with wrong space registers depending on timer tick
timing).

What timer frequency are you using?  I've been using 250 Hz.  If your
theory is correct, I think the problem should be worse at 100 Hz.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Question about execve.
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On 04/01/2010 03:33 PM, John David Anglin wrote:
> Hi Helge,
>
>> I installed this libc on one of my servers.
>> I didn't ran any bigger tests yet, but at least it seems to have fixed the issue that an ssh into the machine often didn't let me in the first time. Now it just works...
>
> I think this might be another issue.  Strangely, I used to see this
> one my c3750 and it' now gone away.

Sadly I was wrong and answered too fast.
The ssh-issue came back at some point, so the new glibc didn't fixed it.... :-(
  
> I originally noticed a problem with Carlos's vfork testcase when compiled
> with -static.  The parent pid printed by the parent was corrupted (always
> same value) by the vfork call (r19 was not saved across syscall).  If you
> check that it now works, the problem is probably fixed in glibc.
>
> I have attached below a kernel fix for this bug.  This allows old user
> code to work correctly.

Thanks for the work you and Carlos do!

Helge
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From: NIIBE Yutaka <gniibe@fsij.org>
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Subject: threads and fork on machine with VIPT-WB cache
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Hi there,

I think that I am catching a bug for threads and fork.  I found it
when debugging FTBFS of Gauche, a Scheme interpreter.  As I think that
the Debian bug #561203 has same cause, I am CC:-ing to the BTS too.
Please send Cc: to me, I am not on linux-parisc list.

Here, I am talking uniprocessor system case.
I assume that PARISC has virtually indexed, physically tagged, write
back cache, I call it VIPT-WB.

I am reading the source in Debian:
	linux-source-2.6.32/kernel/fork.c
	linux-source-2.6.32/mm/memory.c
	linux-source-2.6.32/arch/parisc/include/asm/pgtable.h

To have same semantics as other archs, I think that VIPT-WB cache
machine should have cache flush at ptep_set_wrprotect, so that memory
of the page has up-to-date data.  Yes, it will be huge performance
impact for fork.  But I don't find any good solution other than this
yet.  Well, I will need to write to linux-arch.

Let me explain our case.  As I couldn't catch the scene, but the
result, it includes imagination and interpretation of mine.  Correct
me if I'm wrong.

(1) We have process A with threads.  One of threads calls fork(2) (in
    fact, it's clone(2) without CLONE_VM) when other threads are still
    live.  Let's call this thread A-1.

(2) As a result of clone(2), we have process B.

(3) The memory of process A are copied to process B by dup_mmap
    (fork.c) by A-1 with the context of process A.  There,
    flush_cache_dup_mm is called.

    In case of single thread, flush_cache_dup_mm is enough.  All data
    in cache go to memory.  But we have other threads, in this case.

(4) From dup_mmap, copy_page_range (memory.c) is called.

    Note that there is a possibility of sleep in copy_page_range.
    Allocation of page in pud_alloc, pmd_alloc, or pte_alloc_map_lock
    may need the A-1 thread to be scheduled off (and wakes up the
    swapper or other processes).

(5) Suppose the A-1 thread sleeps in copy_page_range, and another
    thread of A-2 of process A is waken up, and touches memory.  Then
    we have data only in cache, memory has stale data.

(6) A-2 thread sleeps, and A-1 thread is waken up to continue
    copy_page_range -> copy_*_range -> copy_one_pte.

(7) From copy_one_pte, A-1 thread call ptep_set_wrprotect as
    this is COW mapping. (*)

(8) A-1 thread sleeps again in copy_page_range and process B is waken up.

(9) Process B does read-access on memory, which gets *NEW* data in
    cache (if process space identifier color is same).
    Process B does write-access on memory which causes memory fault,
    as it's COW memory.

    Note: Process B sees *NEW* data because it's VIPT-WB cache.
    It shares same memory in this situation.

(10) New page is allocated and memory contents are copied, with
     stale data.

     I assume that kernel access to the memory is by different
     cache line and does not see cache data of A-2.

(11) After falut, process B gets *OLD* data on memory.


(*) When we make COW memory mapping between process A and process B,
    we assume memory were up-to-date.  As this assumption is
    incorrect, I think that we need to flush cache data to memory
    here.


If you have more interest or like ASCII art, please keep reading.

In our Gauche case, we saw this problem on the linked list handling of
pthread implementation (NPTL).  We have two linked list heads, <used>
and <cache>.

Initially, situation of process A is like this:

      +-------------------------------------+
      |                                     |
used  v     ELEM                            |
+-----+     +-----+     +-----+     +-----+ |
|   ------->|   ------->|   ------->|   ----+
+-----+     +-----+     +-----+     +-----+
            |     |     |     |     |     |
            +-----+     +-----+     +-----+

      +-------------+
      |             |
cache v             |
+-----+     +-----+ |
|   ------->|   ----+
+-----+     +-----+                       This is in memory
            |     |
            +-----+

A-2 thread removes ELEM during fork.
This is Process A's final situation, and what Process B sees initially.

      +-------------------------------------+
      |                                     |
used  v                                     |
+-----+                 +-----+     +-----+ |
|   ------------------->|   ------->|   ----+
+-----+                 +-----+     +-----+
                        |     |     |     |
                        +-----+     +-----+

      +---------------------------+
      |     ELEM                  |
      |     +-----+               |
      | +-->|   -----+            |
      | |   +-----+  |            |
      | |   |     |  |            |
cache v |   +-----+  |            |        This is in cache
+-----+ |            |   +-----+  |
|   ----+            +-->|   -----+
+-----+                  +-----+
                         |     |
                         +-----+


Process B scans through linked list with <cache> and update data
in linked list.  After process B touches ELEM, it sees
*OLD* data of ELEM.


      +-------------------------------------+
      |                                     |
used  v                                     |
+-----+                 +-----+     +-----+ |
|   -----------------+->|   ------->|   ----+
+-----+              |  +-----+     +-----+
                     |  |     |     |     |
            ELEM     |  +-----+     +-----+
            +-----+  |
        +-->|   -----+ Wow!
        |   +-----+
        |   |*****|
cache   |   +-----+
+-----+ |                +-----+
|   ----+                |   ----> ... to cache
+-----+                  +-----+
                         |     |
                         +-----+

Process B follows the link and goes different places
and touches wrongly.

      +-------------------------------------+
      |                                     |
used  v                                     |
+-----+                 +-----+     +-----+ |
|   -----------------+->|   ------->|   ----+
+-----+              |  +-----+     +-----+
                     |  |*****|     |     |
            ELEM     |  +-----+     +-----+
            +-----+  |
        +-->|   -----+
        |   +-----+
        |   |*****|
cache   |   +-----+
+-----+ |                +-----+
|   ----+                |   ----> ... to cache
+-----+                  +-----+
                         |     |
                         +-----+

      +-------------------------------------+
      |                                     |
used  v                                     |
+-----+                 +-----+     +-----+ |
|   -----------------+->|   ------->|   ----+
+-----+              |  +-----+     +-----+
                     |  |*****|     |*****|
            ELEM     |  +-----+     +-----+
            +-----+  |
        +-->|   -----+
        |   +-----+
        |   |*****|
cache   |   +-----+
+-----+ |                +-----+
|   ----+                |   ----> ... to cache
+-----+                  +-----+
                         |     |
                         +-----+

Process B scans and goes linked list head of <used> as if it were
element of linked list.  Process B couldn't stop because its
condition is comparison with the head <cache>.  Process B touches
memory, and then it sees *OLD* data of <used>.  Besides,
<cache> is on the same page with <used>, it's contents from
viewpoint of process B is also changed to *OLD*.

      +-------------------------------------+
      |                                     |
used  v                                     |
+-----+ Wow!            +-----+     +-----+ |
|   -----+           +->|   ------->|   ----+
+-----+  |           |  +-----+     +-----+
 *****   |           |  |*****|     |*****|
         |  ELEM     |  +-----+     +-----+
         |  +-----+  |
         +->|   -----+
            +-----+
            |*****|
cache       +-----+
+-----+ Wow!             +-----+
|   -------------------->|   ----> ... to cache
+-----+                  +-----+
                         |     |
                         +-----+

Process B continues scanning this linked list forever.
It enters this loop from <cache>, but <cache>
does not points to ELEM now.
-- 
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Subject: Re: threads and fork on machine with VIPT-WB cache
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On Fri, 2010-04-02 at 11:41 +0900, NIIBE Yutaka wrote:
> (9) Process B does read-access on memory, which gets *NEW* data in
>     cache (if process space identifier color is same).
>     Process B does write-access on memory which causes memory fault,
>     as it's COW memory.
> 
>     Note: Process B sees *NEW* data because it's VIPT-WB cache.
>     It shares same memory in this situation.

So I think the bug here is that you're confusing aliasing with SMP cache
coherence.  In an alias situation, the same physical line is mapped to
multiple lines in a processor's cache (at different virtual addresses),
which means you can get a different answer depending on which alias you
read.

In COW breaking, the page table entry is copied, so A and B no longer
have page table entries at the same physical location.  If the COW is
intact, A and B have the same physical page, but it's also accessed by
the same virtual address, hence no aliasing.

In an SMP incoherent system, A and B could get different results (if on
different CPUs) because the write protect is in the cache of A but not
B.  However, PA is SMP coherent, so the act of B reading a line which is
dirty in A's cache causes a flush before the read completes via the
cache chequerboard logic and B ends up reading the same value A would
have read.

James


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Subject: Re: threads and fork on machine with VIPT-WB cache
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Thanks for your quick reply.

James Bottomley wrote:
> In COW breaking, the page table entry is copied, so A and B no longer
> have page table entries at the same physical location.  If the COW is
> intact, A and B have the same physical page, but it's also accessed by
> the same virtual address, hence no aliasing.

Let me explain more.

In the scenario, I assume:

	No aliasing between A and B.
	We have aliasing between kernel access and user access.

Before COW breaking A and B share same data (with no aliasing same
space identifier color), and B sees data in cache, while memory has
stale data.

At COW breaking, kernel copies the memory, it doesn't see new data
in cache because of aliasing.

Isn't it possible?
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From - Thu Nov 08 21:05:49 2018
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From: NIIBE Yutaka <gniibe@fsij.org>
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Subject: Re: threads and fork on machine with VIPT-WB cache
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NIIBE Yutaka wrote:
> To have same semantics as other archs, I think that VIPT-WB cache
> machine should have cache flush at ptep_set_wrprotect, so that memory
> of the page has up-to-date data.  Yes, it will be huge performance
> impact for fork.  But I don't find any good solution other than this
> yet.

I think we could do something like (only for VIPT-WB cache machine):

-	static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned 
long address, pte_t *ptep)

+	static inline void ptep_set_wrprotect(struct vm_area_struct *vma, 
struct mm_struct *mm, unsigned long addr, pte_t *ptep)
	{
		pte_t old_pte = *ptep;
+		if (atomic_read(&mm->mm_users) > 1)
+			flush_cache_page(vma, addr, pte_pfn(old_pte));
		set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
	}

Here, we can add condition for the call of flush_cache_page
to avoid big performance impact for non threads case.
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From - Thu Nov 08 21:05:49 2018
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On Fri, 2010-04-02 at 12:48 +0900, NIIBE Yutaka wrote:
> Thanks for your quick reply.
> 
> James Bottomley wrote:
> > In COW breaking, the page table entry is copied, so A and B no longer
> > have page table entries at the same physical location.  If the COW is
> > intact, A and B have the same physical page, but it's also accessed by
> > the same virtual address, hence no aliasing.
> 
> Let me explain more.
> 
> In the scenario, I assume:
> 
> 	No aliasing between A and B.
> 	We have aliasing between kernel access and user access.
> 
> Before COW breaking A and B share same data (with no aliasing same
> space identifier color), and B sees data in cache, while memory has
> stale data.
> 
> At COW breaking, kernel copies the memory, it doesn't see new data
> in cache because of aliasing.
> 
> Isn't it possible?

So your theory is that the data the kernel sees doing the page copy can
be stale because of dirty cache lines in userspace (which is certainly
possible in the ordinary way)?  By design that shouldn't happen: the
idea behind COW breaking is that before it breaks, the page is read
only ... this means that processes can have clean cache copies of it,
but never dirty cache copies (because writes are forbidden).  As soon as
one or other process tries to write to the page, it gets a memory
protection trap long before the data it's trying to write goes into the
cache.  By the time the write is allowed to complete (and the cache
becomes dirty), the process will have the new copy of the page which
belongs exclusively to it.

James


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From - Thu Nov 08 21:05:49 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: threads and fork on machine with VIPT-WB cache
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On Fri, 02 Apr 2010, NIIBE Yutaka wrote:

> NIIBE Yutaka wrote:
>> To have same semantics as other archs, I think that VIPT-WB cache
>> machine should have cache flush at ptep_set_wrprotect, so that memory
>> of the page has up-to-date data.  Yes, it will be huge performance
>> impact for fork.  But I don't find any good solution other than this
>> yet.
>
> I think we could do something like (only for VIPT-WB cache machine):
>
> -	static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long 
> address, pte_t *ptep)
>
> +	static inline void ptep_set_wrprotect(struct vm_area_struct *vma, struct 
> mm_struct *mm, unsigned long addr, pte_t *ptep)
> 	{
> 		pte_t old_pte = *ptep;
> +		if (atomic_read(&mm->mm_users) > 1)
> +			flush_cache_page(vma, addr, pte_pfn(old_pte));
> 		set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
> 	}

I tested the hack below on two machines currently running 2.6.33.2
UP kernels.  The change seems to fix Debian #561203 (minifail bug)!
Thus, I definitely think you are on the right track.  I'll continue
to test.

I suspect the same issue is present for SMP kernels.

Thanks,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index a27d2e2..a5d730f 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -14,6 +14,7 @@
 #include <linux/bitops.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
+extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn);
 
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
@@ -456,7 +457,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 	return old_pte;
 }
 
-static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+static inline void ptep_set_wrprotect(struct vm_area_struct *vma, struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
 #ifdef CONFIG_SMP
 	unsigned long new, old;
@@ -467,6 +468,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
 #else
 	pte_t old_pte = *ptep;
+	if (atomic_read(&mm->mm_users) > 1)
+		flush_cache_page(vma, addr, pte_pfn(old_pte));
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
 #endif
 }
diff --git a/mm/memory.c b/mm/memory.c
index 09e4b1b..21c2916 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -616,7 +616,7 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	 * in the parent and the child
 	 */
 	if (is_cow_mapping(vm_flags)) {
-		ptep_set_wrprotect(src_mm, addr, src_pte);
+		ptep_set_wrprotect(vma, src_mm, addr, src_pte);
 		pte = pte_wrprotect(pte);
 	}
 
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From: Ben Hutchings <ben@decadent.org.uk>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: [PATCH 1/4] panic: Allow warnings to set different taint flags
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2757>

WARN() is used in some places to report firmware or hardware bugs that
are then worked-around.  These bugs do not affect the stability of the
kernel and should not set the flag for TAINT_WARN.  To allow for this,
add WARN_TAINT() and WARN_TAINT_ONCE() macros that take a taint number
as argument.

Architectures that implement warnings using trap instructions instead
of calls to warn_slowpath_*() now implement __WARN_TAINT(taint)
instead of __WARN().

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
Changes since the previous version:
- Added note to Documentation/oops-tracing.txt
- Changed the commit message to distinguish taint numbers from taint
  flags
- Removed 'must' from last sentence of commit message; this patch
  converts all mainline architectures

Ben.

 Documentation/oops-tracing.txt |    1 +
 arch/parisc/include/asm/bug.h  |    8 ++++----
 arch/powerpc/include/asm/bug.h |    6 +++---
 arch/s390/include/asm/bug.h    |    8 ++++----
 arch/sh/include/asm/bug.h      |    4 ++--
 include/asm-generic/bug.h      |   34 ++++++++++++++++++++++++++++++++--
 kernel/panic.c                 |   24 ++++++++++++++++++++----
 lib/bug.c                      |    2 +-
 8 files changed, 67 insertions(+), 20 deletions(-)

diff --git a/Documentation/oops-tracing.txt b/Documentation/oops-tracing.txt
index c10c022..069fab3 100644
--- a/Documentation/oops-tracing.txt
+++ b/Documentation/oops-tracing.txt
@@ -256,6 +256,7 @@ characters, each representing a particular tainted value.
   9: 'A' if the ACPI table has been overridden.
 
  10: 'W' if a warning has previously been issued by the kernel.
+     (Though some warnings may set more specific taint flags.)
 
  11: 'C' if a staging driver has been loaded.
 
diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
index 75e46c5..72cfdb0 100644
--- a/arch/parisc/include/asm/bug.h
+++ b/arch/parisc/include/asm/bug.h
@@ -44,7 +44,7 @@
 #endif
 
 #ifdef CONFIG_DEBUG_BUGVERBOSE
-#define __WARN()							\
+#define __WARN_TAINT(taint)						\
 	do {								\
 		asm volatile("\n"					\
 			     "1:\t" PARISC_BUG_BREAK_ASM "\n"		\
@@ -54,11 +54,11 @@
 			     "\t.org 2b+%c3\n"				\
 			     "\t.popsection"				\
 			     : : "i" (__FILE__), "i" (__LINE__),	\
-			     "i" (BUGFLAG_WARNING),			\
+			     "i" (BUGFLAG_TAINT(taint)), 		\
 			     "i" (sizeof(struct bug_entry)) );		\
 	} while(0)
 #else
-#define __WARN()							\
+#define __WARN_TAINT(taint)						\
 	do {								\
 		asm volatile("\n"					\
 			     "1:\t" PARISC_BUG_BREAK_ASM "\n"		\
@@ -67,7 +67,7 @@
 			     "\t.short %c0\n"				\
 			     "\t.org 2b+%c1\n"				\
 			     "\t.popsection"				\
-			     : : "i" (BUGFLAG_WARNING),			\
+			     : : "i" (BUGFLAG_TAINT(taint)),		\
 			     "i" (sizeof(struct bug_entry)) );		\
 	} while(0)
 #endif
diff --git a/arch/powerpc/include/asm/bug.h b/arch/powerpc/include/asm/bug.h
index 2c15212..065c590 100644
--- a/arch/powerpc/include/asm/bug.h
+++ b/arch/powerpc/include/asm/bug.h
@@ -85,12 +85,12 @@
 	}							\
 } while (0)
 
-#define __WARN() do {						\
+#define __WARN_TAINT(taint) do {				\
 	__asm__ __volatile__(					\
 		"1:	twi 31,0,0\n"				\
 		_EMIT_BUG_ENTRY					\
 		: : "i" (__FILE__), "i" (__LINE__),		\
-		  "i" (BUGFLAG_WARNING),			\
+		  "i" (BUGFLAG_TAINT(taint)),			\
 		  "i" (sizeof(struct bug_entry)));		\
 } while (0)
 
@@ -104,7 +104,7 @@
 		"1:	"PPC_TLNEI"	%4,0\n"			\
 		_EMIT_BUG_ENTRY					\
 		: : "i" (__FILE__), "i" (__LINE__),		\
-		  "i" (BUGFLAG_WARNING),			\
+		  "i" (BUGFLAG_TAINT(TAINT_WARN)),		\
 		  "i" (sizeof(struct bug_entry)),		\
 		  "r" (__ret_warn_on));				\
 	}							\
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index 9beeb9d..bf90d1f 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -46,18 +46,18 @@
 	unreachable();					\
 } while (0)
 
-#define __WARN() do {					\
-	__EMIT_BUG(BUGFLAG_WARNING);			\
+#define __WARN_TAINT(taint) do {			\
+	__EMIT_BUG(BUGFLAG_TAINT(taint));		\
 } while (0)
 
 #define WARN_ON(x) ({					\
 	int __ret_warn_on = !!(x);			\
 	if (__builtin_constant_p(__ret_warn_on)) {	\
 		if (__ret_warn_on)			\
-			__EMIT_BUG(BUGFLAG_WARNING);	\
+			__WARN();			\
 	} else {					\
 		if (unlikely(__ret_warn_on))		\
-			__EMIT_BUG(BUGFLAG_WARNING);	\
+			__WARN();			\
 	}						\
 	unlikely(__ret_warn_on);			\
 })
diff --git a/arch/sh/include/asm/bug.h b/arch/sh/include/asm/bug.h
index d02c01b..6323f86 100644
--- a/arch/sh/include/asm/bug.h
+++ b/arch/sh/include/asm/bug.h
@@ -48,7 +48,7 @@ do {							\
 		   "i" (sizeof(struct bug_entry)));	\
 } while (0)
 
-#define __WARN()					\
+#define __WARN_TAINT(taint)				\
 do {							\
 	__asm__ __volatile__ (				\
 		"1:\t.short %O0\n"			\
@@ -57,7 +57,7 @@ do {							\
 		 : "n" (TRAPA_BUG_OPCODE),		\
 		   "i" (__FILE__),			\
 		   "i" (__LINE__),			\
-		   "i" (BUGFLAG_WARNING),		\
+		   "i" (BUGFLAG_TAINT(taint)),		\
 		   "i" (sizeof(struct bug_entry)));	\
 } while (0)
 
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 18c435d..c2c9ba0 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -25,7 +25,10 @@ struct bug_entry {
 };
 #endif		/* __ASSEMBLY__ */
 
-#define BUGFLAG_WARNING	(1<<0)
+#define BUGFLAG_WARNING		(1 << 0)
+#define BUGFLAG_TAINT(taint)	(BUGFLAG_WARNING | ((taint) << 8))
+#define BUG_GET_TAINT(bug)	((bug)->flags >> 8)
+
 #endif	/* CONFIG_GENERIC_BUG */
 
 /*
@@ -56,17 +59,25 @@ struct bug_entry {
  * appear at runtime.  Use the versions with printk format strings
  * to provide better diagnostics.
  */
-#ifndef __WARN
+#ifndef __WARN_TAINT
 #ifndef __ASSEMBLY__
 extern void warn_slowpath_fmt(const char *file, const int line,
 		const char *fmt, ...) __attribute__((format(printf, 3, 4)));
+extern void warn_slowpath_fmt_taint(const char *file, const int line,
+				    unsigned taint, const char *fmt, ...)
+	__attribute__((format(printf, 4, 5)));
 extern void warn_slowpath_null(const char *file, const int line);
 #define WANT_WARN_ON_SLOWPATH
 #endif
 #define __WARN()		warn_slowpath_null(__FILE__, __LINE__)
 #define __WARN_printf(arg...)	warn_slowpath_fmt(__FILE__, __LINE__, arg)
+#define __WARN_printf_taint(taint, arg...)				\
+	warn_slowpath_fmt_taint(__FILE__, __LINE__, taint, arg)
 #else
+#define __WARN()		__WARN_TAINT(TAINT_WARN)
 #define __WARN_printf(arg...)	do { printk(arg); __WARN(); } while (0)
+#define __WARN_printf_taint(taint, arg...)				\
+	do { printk(arg); __WARN_TAINT(taint); } while (0)
 #endif
 
 #ifndef WARN_ON
@@ -87,6 +98,13 @@ extern void warn_slowpath_null(const char *file, const int line);
 })
 #endif
 
+#define WARN_TAINT(condition, taint, format...) ({			\
+	int __ret_warn_on = !!(condition);				\
+	if (unlikely(__ret_warn_on))					\
+		__WARN_printf_taint(taint, format);			\
+	unlikely(__ret_warn_on);					\
+})
+
 #else /* !CONFIG_BUG */
 #ifndef HAVE_ARCH_BUG
 #define BUG() do {} while(0)
@@ -110,6 +128,8 @@ extern void warn_slowpath_null(const char *file, const int line);
 })
 #endif
 
+#define WARN_TAINT(condition, taint, format...) WARN_ON(condition)
+
 #endif
 
 #define WARN_ON_ONCE(condition)	({				\
@@ -132,6 +152,16 @@ extern void warn_slowpath_null(const char *file, const int line);
 	unlikely(__ret_warn_once);				\
 })
 
+#define WARN_TAINT_ONCE(condition, taint, format...)	({	\
+	static bool __warned;					\
+	int __ret_warn_once = !!(condition);			\
+								\
+	if (unlikely(__ret_warn_once))				\
+		if (WARN_TAINT(!__warned, taint, format))	\
+			__warned = true;			\
+	unlikely(__ret_warn_once);				\
+})
+
 #define WARN_ON_RATELIMIT(condition, state)			\
 		WARN_ON((condition) && __ratelimit(state))
 
diff --git a/kernel/panic.c b/kernel/panic.c
index 13d966b..8b821bc 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -365,7 +365,8 @@ struct slowpath_args {
 	va_list args;
 };
 
-static void warn_slowpath_common(const char *file, int line, void *caller, struct slowpath_args *args)
+static void warn_slowpath_common(const char *file, int line, void *caller,
+				 unsigned taint, struct slowpath_args *args)
 {
 	const char *board;
 
@@ -381,7 +382,7 @@ static void warn_slowpath_common(const char *file, int line, void *caller, struc
 	print_modules();
 	dump_stack();
 	print_oops_end_marker();
-	add_taint(TAINT_WARN);
+	add_taint(taint);
 }
 
 void warn_slowpath_fmt(const char *file, int line, const char *fmt, ...)
@@ -390,14 +391,29 @@ void warn_slowpath_fmt(const char *file, int line, const char *fmt, ...)
 
 	args.fmt = fmt;
 	va_start(args.args, fmt);
-	warn_slowpath_common(file, line, __builtin_return_address(0), &args);
+	warn_slowpath_common(file, line, __builtin_return_address(0),
+			     TAINT_WARN, &args);
 	va_end(args.args);
 }
 EXPORT_SYMBOL(warn_slowpath_fmt);
 
+void warn_slowpath_fmt_taint(const char *file, int line,
+			     unsigned taint, const char *fmt, ...)
+{
+	struct slowpath_args args;
+
+	args.fmt = fmt;
+	va_start(args.args, fmt);
+	warn_slowpath_common(file, line, __builtin_return_address(0),
+			     taint, &args);
+	va_end(args.args);
+}
+EXPORT_SYMBOL(warn_slowpath_fmt_taint);
+
 void warn_slowpath_null(const char *file, int line)
 {
-	warn_slowpath_common(file, line, __builtin_return_address(0), NULL);
+	warn_slowpath_common(file, line, __builtin_return_address(0),
+			     TAINT_WARN, NULL);
 }
 EXPORT_SYMBOL(warn_slowpath_null);
 #endif
diff --git a/lib/bug.c b/lib/bug.c
index 300e41a..f13daf4 100644
--- a/lib/bug.c
+++ b/lib/bug.c
@@ -165,7 +165,7 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
 			       (void *)bugaddr);
 
 		show_regs(regs);
-		add_taint(TAINT_WARN);
+		add_taint(BUG_GET_TAINT(bug));
 		return BUG_TRAP_TYPE_WARN;
 	}
 
-- 
1.7.0.3



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From - Thu Nov 08 21:05:49 2018
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From: NIIBE Yutaka <gniibe@fsij.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: threads and fork on machine with VIPT-WB cache
Date: Mon, 05 Apr 2010 09:39:09 +0900
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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Thanks a lot for the discussion.

James Bottomley wrote:
> So your theory is that the data the kernel sees doing the page copy can
> be stale because of dirty cache lines in userspace (which is certainly
> possible in the ordinary way)?

Yes.

> By design that shouldn't happen: the idea behind COW breaking is
> that before it breaks, the page is read only ... this means that
> processes can have clean cache copies of it, but never dirty cache
> copies (because writes are forbidden).

That must be design, I agree.

To keep this condition (no dirty cache for COW page), we need to flush
cache before ptep_set_wrprotect.  That's my point.

Please look at the code path:
   (kernel/fork.c)
   do_fork -> copy_process -> copy_mm -> dup_mm -> dup_mmap ->
   (mm/memory.c)
   copy_page_range -> copy_p*d_range -> copy_one_pte -> ptep_set_wrprotect

The function flush_cache_dup_mm is called from dup_mmap, that's enough
for a case of a process with single thread.

I think that:
We need to flush cache before ptep_set_wrprotect for a process with
multiple threads.  Other threads may change memory after a thread
invokes do_fork and before calling ptep_set_wrprotect.  Specifically,
a process may sleep at pte_alloc function to get a page.
-- 
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From - Thu Nov 08 21:05:49 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: threads and fork on machine with VIPT-WB cache
Date: Sun, 4 Apr 2010 22:51:53 -0400 (EDT)
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To: gniibe@fsij.org (NIIBE Yutaka)
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> Thanks a lot for the discussion.
> 
> James Bottomley wrote:
> > So your theory is that the data the kernel sees doing the page copy can
> > be stale because of dirty cache lines in userspace (which is certainly
> > possible in the ordinary way)?
> 
> Yes.
> 
> > By design that shouldn't happen: the idea behind COW breaking is
> > that before it breaks, the page is read only ... this means that
> > processes can have clean cache copies of it, but never dirty cache
> > copies (because writes are forbidden).
> 
> That must be design, I agree.
> 
> To keep this condition (no dirty cache for COW page), we need to flush
> cache before ptep_set_wrprotect.  That's my point.
> 
> Please look at the code path:
>    (kernel/fork.c)
>    do_fork -> copy_process -> copy_mm -> dup_mm -> dup_mmap ->
>    (mm/memory.c)
>    copy_page_range -> copy_p*d_range -> copy_one_pte -> ptep_set_wrprotect
> 
> The function flush_cache_dup_mm is called from dup_mmap, that's enough
> for a case of a process with single thread.
> I think that:
> We need to flush cache before ptep_set_wrprotect for a process with
> multiple threads.  Other threads may change memory after a thread
> invokes do_fork and before calling ptep_set_wrprotect.  Specifically,
> a process may sleep at pte_alloc function to get a page.

I agree.  It is interesting that in the case of the Debian bug that
a thread of the parent process causes the COW break and thereby corrupts
its own memory.  As far as I can tell, the fork'd child never writes
to the memory that causes the fault.

My testing indicates that your suggested change fixes the Debian
bug.  I've attached below my latest test version.  This seems to fix
the bug on both SMP and UP kernels.

However, it doesn't fix all page/cache related issues on parisc
SMP kernels that I commonly see.

My first inclination after even before reading your analysis was
to assume that copy_user_page was broken (i.e, that even if a
processor cache was dirty when the COW page was write protected,
it should be possible to do the flush before the page is copied).
However, this didn't seem to work...  Possibly, there are issues
with aliased addresses.

I note that sparc flushes the entire cache and purges the entire
tlb in kmap_atomic/kunmap_atomic for highmem.  Although the breakage
that I see is not limited to PA8800/PA8900, I'm not convinced
that we maintain coherency that is required for these processors
in copy_user_page when we have multiple threads.

As a side note, kmap_atomic/kunmap_atomic seem to lack calls to
pagefault_disable()/pagefault_enable() on PA8800.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index a27d2e2..b140d5c 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -14,6 +14,7 @@
 #include <linux/bitops.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
+extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn);
 
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
@@ -456,17 +457,22 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 	return old_pte;
 }
 
-static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+static inline void ptep_set_wrprotect(struct vm_area_struct *vma, struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
 #ifdef CONFIG_SMP
 	unsigned long new, old;
+#endif
+	pte_t old_pte = *ptep;
+
+	if (atomic_read(&mm->mm_users) > 1)
+		flush_cache_page(vma, addr, pte_pfn(old_pte));
 
+#ifdef CONFIG_SMP
 	do {
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
 #else
-	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
 #endif
 }
diff --git a/mm/memory.c b/mm/memory.c
index 09e4b1b..21c2916 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -616,7 +616,7 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	 * in the parent and the child
 	 */
 	if (is_cow_mapping(vm_flags)) {
-		ptep_set_wrprotect(src_mm, addr, src_pte);
+		ptep_set_wrprotect(vma, src_mm, addr, src_pte);
 		pte = pte_wrprotect(pte);
 	}
 
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> > > By design that shouldn't happen: the idea behind COW breaking is
> > > that before it breaks, the page is read only ... this means that
> > > processes can have clean cache copies of it, but never dirty cache
> > > copies (because writes are forbidden).
> > 
> > That must be design, I agree.
> > 
> > To keep this condition (no dirty cache for COW page), we need to flush
> > cache before ptep_set_wrprotect.  That's my point.

Is it possible that a sleep/reschedule could cause the cache to become
dirty again before it is write protected?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Sun, 2010-04-04 at 22:51 -0400, John David Anglin wrote:
> > Thanks a lot for the discussion.
> > 
> > James Bottomley wrote:
> > > So your theory is that the data the kernel sees doing the page copy can
> > > be stale because of dirty cache lines in userspace (which is certainly
> > > possible in the ordinary way)?
> > 
> > Yes.
> > 
> > > By design that shouldn't happen: the idea behind COW breaking is
> > > that before it breaks, the page is read only ... this means that
> > > processes can have clean cache copies of it, but never dirty cache
> > > copies (because writes are forbidden).
> > 
> > That must be design, I agree.
> > 
> > To keep this condition (no dirty cache for COW page), we need to flush
> > cache before ptep_set_wrprotect.  That's my point.
> > 
> > Please look at the code path:
> >    (kernel/fork.c)
> >    do_fork -> copy_process -> copy_mm -> dup_mm -> dup_mmap ->
> >    (mm/memory.c)
> >    copy_page_range -> copy_p*d_range -> copy_one_pte -> ptep_set_wrprotect
> > 
> > The function flush_cache_dup_mm is called from dup_mmap, that's enough
> > for a case of a process with single thread.
> > I think that:
> > We need to flush cache before ptep_set_wrprotect for a process with
> > multiple threads.  Other threads may change memory after a thread
> > invokes do_fork and before calling ptep_set_wrprotect.  Specifically,
> > a process may sleep at pte_alloc function to get a page.
> 
> I agree.  It is interesting that in the case of the Debian bug that
> a thread of the parent process causes the COW break and thereby corrupts
> its own memory.  As far as I can tell, the fork'd child never writes
> to the memory that causes the fault.
> 
> My testing indicates that your suggested change fixes the Debian
> bug.  I've attached below my latest test version.  This seems to fix
> the bug on both SMP and UP kernels.
> 
> However, it doesn't fix all page/cache related issues on parisc
> SMP kernels that I commonly see.
> 
> My first inclination after even before reading your analysis was
> to assume that copy_user_page was broken (i.e, that even if a
> processor cache was dirty when the COW page was write protected,
> it should be possible to do the flush before the page is copied).
> However, this didn't seem to work...  Possibly, there are issues
> with aliased addresses.
> 
> I note that sparc flushes the entire cache and purges the entire
> tlb in kmap_atomic/kunmap_atomic for highmem.  Although the breakage
> that I see is not limited to PA8800/PA8900, I'm not convinced
> that we maintain coherency that is required for these processors
> in copy_user_page when we have multiple threads.
> 
> As a side note, kmap_atomic/kunmap_atomic seem to lack calls to
> pagefault_disable()/pagefault_enable() on PA8800.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
> 
> diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
> index a27d2e2..b140d5c 100644
> --- a/arch/parisc/include/asm/pgtable.h
> +++ b/arch/parisc/include/asm/pgtable.h
> @@ -14,6 +14,7 @@
>  #include <linux/bitops.h>
>  #include <asm/processor.h>
>  #include <asm/cache.h>
> +extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn);
>  
>  /*
>   * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
> @@ -456,17 +457,22 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
>  	return old_pte;
>  }
>  
> -static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
> +static inline void ptep_set_wrprotect(struct vm_area_struct *vma, struct mm_struct *mm, unsigned long addr, pte_t *ptep)
>  {
>  #ifdef CONFIG_SMP
>  	unsigned long new, old;
> +#endif
> +	pte_t old_pte = *ptep;
> +
> +	if (atomic_read(&mm->mm_users) > 1)

Just to verify there's nothing this is hiding, can you make this 

	if (pte_dirty(old_pte))

and reverify?  The if clause should only trip on the case where the
parent has dirtied the line between flush and now.

> +		flush_cache_page(vma, addr, pte_pfn(old_pte));
>  
> +#ifdef CONFIG_SMP
>  	do {
>  		old = pte_val(*ptep);
>  		new = pte_val(pte_wrprotect(__pte (old)));
>  	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
>  #else
> -	pte_t old_pte = *ptep;
>  	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
>  #endif
>  }
> diff --git a/mm/memory.c b/mm/memory.c
> index 09e4b1b..21c2916 100644
> --- a/mm/memory.c
> +++ b/mm/memory.c
> @@ -616,7 +616,7 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
>  	 * in the parent and the child
>  	 */
>  	if (is_cow_mapping(vm_flags)) {
> -		ptep_set_wrprotect(src_mm, addr, src_pte);
> +		ptep_set_wrprotect(vma, src_mm, addr, src_pte);

So this is going to be a hard sell because of the arch churn. There are,
however, three ways to do it with the original signature.

     1. implement copy_user_highpage ... this allows us to copy through
        the child's page cache (which is coherent with the parent's
        before the cow) and thus pick up any cache changes without a
        flush
     2. use the mm identically to flush_user_cache_page_noncurrent.  The
        only reason that needs the vma is for the icache check ... but
        that shouldn't happen here (if the parent is actually doing a
        self modifying exec region, it needs to manage coherency
        itself).
     3. Flush in kmap ... this is something that's been worrying me
        since the flamewars over kmap for pio.

James


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Xref: news.gmane.org gmane.linux.ports.parisc:2762 gmane.linux.kernel.pci:8309 gmane.linux.kernel:970446 gmane.linux.ports.ppc64.devel:65765 gmane.linux.ports.sh.devel:7780
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2762>

On 04/03/2010 08:34 PM, Ben Hutchings wrote:
> WARN() is used in some places to report firmware or hardware bugs that
> are then worked-around.  These bugs do not affect the stability of the
> kernel and should not set the flag for TAINT_WARN.  To allow for this,
> add WARN_TAINT() and WARN_TAINT_ONCE() macros that take a taint number
> as argument.
> 
> Architectures that implement warnings using trap instructions instead
> of calls to warn_slowpath_*() now implement __WARN_TAINT(taint)
> instead of __WARN().
> 
> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

Builds and works on the parisc architecture.
Acked-by: Helge Deller <deller@gmx.de>


> ---
> Changes since the previous version:
> - Added note to Documentation/oops-tracing.txt
> - Changed the commit message to distinguish taint numbers from taint
>   flags
> - Removed 'must' from last sentence of commit message; this patch
>   converts all mainline architectures
> 
> Ben.
> 
>  Documentation/oops-tracing.txt |    1 +
>  arch/parisc/include/asm/bug.h  |    8 ++++----
>  arch/powerpc/include/asm/bug.h |    6 +++---
>  arch/s390/include/asm/bug.h    |    8 ++++----
>  arch/sh/include/asm/bug.h      |    4 ++--
>  include/asm-generic/bug.h      |   34 ++++++++++++++++++++++++++++++++--
>  kernel/panic.c                 |   24 ++++++++++++++++++++----
>  lib/bug.c                      |    2 +-
>  8 files changed, 67 insertions(+), 20 deletions(-)
> 
> diff --git a/Documentation/oops-tracing.txt b/Documentation/oops-tracing.txt
> index c10c022..069fab3 100644
> --- a/Documentation/oops-tracing.txt
> +++ b/Documentation/oops-tracing.txt
> @@ -256,6 +256,7 @@ characters, each representing a particular tainted value.
>    9: 'A' if the ACPI table has been overridden.
>  
>   10: 'W' if a warning has previously been issued by the kernel.
> +     (Though some warnings may set more specific taint flags.)
>  
>   11: 'C' if a staging driver has been loaded.
>  
> diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
> index 75e46c5..72cfdb0 100644
> --- a/arch/parisc/include/asm/bug.h
> +++ b/arch/parisc/include/asm/bug.h
> @@ -44,7 +44,7 @@
>  #endif
>  
>  #ifdef CONFIG_DEBUG_BUGVERBOSE
> -#define __WARN()							\
> +#define __WARN_TAINT(taint)						\
>  	do {								\
>  		asm volatile("\n"					\
>  			     "1:\t" PARISC_BUG_BREAK_ASM "\n"		\
> @@ -54,11 +54,11 @@
>  			     "\t.org 2b+%c3\n"				\
>  			     "\t.popsection"				\
>  			     : : "i" (__FILE__), "i" (__LINE__),	\
> -			     "i" (BUGFLAG_WARNING),			\
> +			     "i" (BUGFLAG_TAINT(taint)), 		\
>  			     "i" (sizeof(struct bug_entry)) );		\
>  	} while(0)
>  #else
> -#define __WARN()							\
> +#define __WARN_TAINT(taint)						\
>  	do {								\
>  		asm volatile("\n"					\
>  			     "1:\t" PARISC_BUG_BREAK_ASM "\n"		\
> @@ -67,7 +67,7 @@
>  			     "\t.short %c0\n"				\
>  			     "\t.org 2b+%c1\n"				\
>  			     "\t.popsection"				\
> -			     : : "i" (BUGFLAG_WARNING),			\
> +			     : : "i" (BUGFLAG_TAINT(taint)),		\
>  			     "i" (sizeof(struct bug_entry)) );		\
>  	} while(0)
>  #endif
> diff --git a/arch/powerpc/include/asm/bug.h b/arch/powerpc/include/asm/bug.h
> index 2c15212..065c590 100644
> --- a/arch/powerpc/include/asm/bug.h
> +++ b/arch/powerpc/include/asm/bug.h
> @@ -85,12 +85,12 @@
>  	}							\
>  } while (0)
>  
> -#define __WARN() do {						\
> +#define __WARN_TAINT(taint) do {				\
>  	__asm__ __volatile__(					\
>  		"1:	twi 31,0,0\n"				\
>  		_EMIT_BUG_ENTRY					\
>  		: : "i" (__FILE__), "i" (__LINE__),		\
> -		  "i" (BUGFLAG_WARNING),			\
> +		  "i" (BUGFLAG_TAINT(taint)),			\
>  		  "i" (sizeof(struct bug_entry)));		\
>  } while (0)
>  
> @@ -104,7 +104,7 @@
>  		"1:	"PPC_TLNEI"	%4,0\n"			\
>  		_EMIT_BUG_ENTRY					\
>  		: : "i" (__FILE__), "i" (__LINE__),		\
> -		  "i" (BUGFLAG_WARNING),			\
> +		  "i" (BUGFLAG_TAINT(TAINT_WARN)),		\
>  		  "i" (sizeof(struct bug_entry)),		\
>  		  "r" (__ret_warn_on));				\
>  	}							\
> diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
> index 9beeb9d..bf90d1f 100644
> --- a/arch/s390/include/asm/bug.h
> +++ b/arch/s390/include/asm/bug.h
> @@ -46,18 +46,18 @@
>  	unreachable();					\
>  } while (0)
>  
> -#define __WARN() do {					\
> -	__EMIT_BUG(BUGFLAG_WARNING);			\
> +#define __WARN_TAINT(taint) do {			\
> +	__EMIT_BUG(BUGFLAG_TAINT(taint));		\
>  } while (0)
>  
>  #define WARN_ON(x) ({					\
>  	int __ret_warn_on = !!(x);			\
>  	if (__builtin_constant_p(__ret_warn_on)) {	\
>  		if (__ret_warn_on)			\
> -			__EMIT_BUG(BUGFLAG_WARNING);	\
> +			__WARN();			\
>  	} else {					\
>  		if (unlikely(__ret_warn_on))		\
> -			__EMIT_BUG(BUGFLAG_WARNING);	\
> +			__WARN();			\
>  	}						\
>  	unlikely(__ret_warn_on);			\
>  })
> diff --git a/arch/sh/include/asm/bug.h b/arch/sh/include/asm/bug.h
> index d02c01b..6323f86 100644
> --- a/arch/sh/include/asm/bug.h
> +++ b/arch/sh/include/asm/bug.h
> @@ -48,7 +48,7 @@ do {							\
>  		   "i" (sizeof(struct bug_entry)));	\
>  } while (0)
>  
> -#define __WARN()					\
> +#define __WARN_TAINT(taint)				\
>  do {							\
>  	__asm__ __volatile__ (				\
>  		"1:\t.short %O0\n"			\
> @@ -57,7 +57,7 @@ do {							\
>  		 : "n" (TRAPA_BUG_OPCODE),		\
>  		   "i" (__FILE__),			\
>  		   "i" (__LINE__),			\
> -		   "i" (BUGFLAG_WARNING),		\
> +		   "i" (BUGFLAG_TAINT(taint)),		\
>  		   "i" (sizeof(struct bug_entry)));	\
>  } while (0)
>  
> diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
> index 18c435d..c2c9ba0 100644
> --- a/include/asm-generic/bug.h
> +++ b/include/asm-generic/bug.h
> @@ -25,7 +25,10 @@ struct bug_entry {
>  };
>  #endif		/* __ASSEMBLY__ */
>  
> -#define BUGFLAG_WARNING	(1<<0)
> +#define BUGFLAG_WARNING		(1 << 0)
> +#define BUGFLAG_TAINT(taint)	(BUGFLAG_WARNING | ((taint) << 8))
> +#define BUG_GET_TAINT(bug)	((bug)->flags >> 8)
> +
>  #endif	/* CONFIG_GENERIC_BUG */
>  
>  /*
> @@ -56,17 +59,25 @@ struct bug_entry {
>   * appear at runtime.  Use the versions with printk format strings
>   * to provide better diagnostics.
>   */
> -#ifndef __WARN
> +#ifndef __WARN_TAINT
>  #ifndef __ASSEMBLY__
>  extern void warn_slowpath_fmt(const char *file, const int line,
>  		const char *fmt, ...) __attribute__((format(printf, 3, 4)));
> +extern void warn_slowpath_fmt_taint(const char *file, const int line,
> +				    unsigned taint, const char *fmt, ...)
> +	__attribute__((format(printf, 4, 5)));
>  extern void warn_slowpath_null(const char *file, const int line);
>  #define WANT_WARN_ON_SLOWPATH
>  #endif
>  #define __WARN()		warn_slowpath_null(__FILE__, __LINE__)
>  #define __WARN_printf(arg...)	warn_slowpath_fmt(__FILE__, __LINE__, arg)
> +#define __WARN_printf_taint(taint, arg...)				\
> +	warn_slowpath_fmt_taint(__FILE__, __LINE__, taint, arg)
>  #else
> +#define __WARN()		__WARN_TAINT(TAINT_WARN)
>  #define __WARN_printf(arg...)	do { printk(arg); __WARN(); } while (0)
> +#define __WARN_printf_taint(taint, arg...)				\
> +	do { printk(arg); __WARN_TAINT(taint); } while (0)
>  #endif
>  
>  #ifndef WARN_ON
> @@ -87,6 +98,13 @@ extern void warn_slowpath_null(const char *file, const int line);
>  })
>  #endif
>  
> +#define WARN_TAINT(condition, taint, format...) ({			\
> +	int __ret_warn_on = !!(condition);				\
> +	if (unlikely(__ret_warn_on))					\
> +		__WARN_printf_taint(taint, format);			\
> +	unlikely(__ret_warn_on);					\
> +})
> +
>  #else /* !CONFIG_BUG */
>  #ifndef HAVE_ARCH_BUG
>  #define BUG() do {} while(0)
> @@ -110,6 +128,8 @@ extern void warn_slowpath_null(const char *file, const int line);
>  })
>  #endif
>  
> +#define WARN_TAINT(condition, taint, format...) WARN_ON(condition)
> +
>  #endif
>  
>  #define WARN_ON_ONCE(condition)	({				\
> @@ -132,6 +152,16 @@ extern void warn_slowpath_null(const char *file, const int line);
>  	unlikely(__ret_warn_once);				\
>  })
>  
> +#define WARN_TAINT_ONCE(condition, taint, format...)	({	\
> +	static bool __warned;					\
> +	int __ret_warn_once = !!(condition);			\
> +								\
> +	if (unlikely(__ret_warn_once))				\
> +		if (WARN_TAINT(!__warned, taint, format))	\
> +			__warned = true;			\
> +	unlikely(__ret_warn_once);				\
> +})
> +
>  #define WARN_ON_RATELIMIT(condition, state)			\
>  		WARN_ON((condition) && __ratelimit(state))
>  
> diff --git a/kernel/panic.c b/kernel/panic.c
> index 13d966b..8b821bc 100644
> --- a/kernel/panic.c
> +++ b/kernel/panic.c
> @@ -365,7 +365,8 @@ struct slowpath_args {
>  	va_list args;
>  };
>  
> -static void warn_slowpath_common(const char *file, int line, void *caller, struct slowpath_args *args)
> +static void warn_slowpath_common(const char *file, int line, void *caller,
> +				 unsigned taint, struct slowpath_args *args)
>  {
>  	const char *board;
>  
> @@ -381,7 +382,7 @@ static void warn_slowpath_common(const char *file, int line, void *caller, struc
>  	print_modules();
>  	dump_stack();
>  	print_oops_end_marker();
> -	add_taint(TAINT_WARN);
> +	add_taint(taint);
>  }
>  
>  void warn_slowpath_fmt(const char *file, int line, const char *fmt, ...)
> @@ -390,14 +391,29 @@ void warn_slowpath_fmt(const char *file, int line, const char *fmt, ...)
>  
>  	args.fmt = fmt;
>  	va_start(args.args, fmt);
> -	warn_slowpath_common(file, line, __builtin_return_address(0), &args);
> +	warn_slowpath_common(file, line, __builtin_return_address(0),
> +			     TAINT_WARN, &args);
>  	va_end(args.args);
>  }
>  EXPORT_SYMBOL(warn_slowpath_fmt);
>  
> +void warn_slowpath_fmt_taint(const char *file, int line,
> +			     unsigned taint, const char *fmt, ...)
> +{
> +	struct slowpath_args args;
> +
> +	args.fmt = fmt;
> +	va_start(args.args, fmt);
> +	warn_slowpath_common(file, line, __builtin_return_address(0),
> +			     taint, &args);
> +	va_end(args.args);
> +}
> +EXPORT_SYMBOL(warn_slowpath_fmt_taint);
> +
>  void warn_slowpath_null(const char *file, int line)
>  {
> -	warn_slowpath_common(file, line, __builtin_return_address(0), NULL);
> +	warn_slowpath_common(file, line, __builtin_return_address(0),
> +			     TAINT_WARN, NULL);
>  }
>  EXPORT_SYMBOL(warn_slowpath_null);
>  #endif
> diff --git a/lib/bug.c b/lib/bug.c
> index 300e41a..f13daf4 100644
> --- a/lib/bug.c
> +++ b/lib/bug.c
> @@ -165,7 +165,7 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
>  			       (void *)bugaddr);
>  
>  		show_regs(regs);
> -		add_taint(TAINT_WARN);
> +		add_taint(BUG_GET_TAINT(bug));
>  		return BUG_TRAP_TYPE_WARN;
>  	}
>  

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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/2763>

On Sat, Apr 03, 2010 at 07:34:56PM +0100, Ben Hutchings wrote:
> WARN() is used in some places to report firmware or hardware bugs that
> are then worked-around.  These bugs do not affect the stability of the
> kernel and should not set the flag for TAINT_WARN.  To allow for this,
> add WARN_TAINT() and WARN_TAINT_ONCE() macros that take a taint number
> as argument.
> 
> Architectures that implement warnings using trap instructions instead
> of calls to warn_slowpath_*() now implement __WARN_TAINT(taint)
> instead of __WARN().
> 
> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
> ---
> Changes since the previous version:
> - Added note to Documentation/oops-tracing.txt
> - Changed the commit message to distinguish taint numbers from taint
>   flags
> - Removed 'must' from last sentence of commit message; this patch
>   converts all mainline architectures
> 
This seems to be missing my Tested-by from the last iteration, since
there are no functional changes with this version feel free to add it in
again.
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John David Anglin wrote:
> It is interesting that in the case of the Debian bug that
> a thread of the parent process causes the COW break and thereby corrupts
> its own memory.  As far as I can tell, the fork'd child never writes
> to the memory that causes the fault.

Thanks for writing and testing a patch.

The case of #561203 is second scenario.  I think that this case is
relevant to VIVT-WB machine too (provided kernel does copy by kernel
address).

James Bottomley wrote:
> So this is going to be a hard sell because of the arch churn. There are,
> however, three ways to do it with the original signature.

Currently, I think that signature change would be inevitable for
ptep_set_wrprotect.

>      1. implement copy_user_highpage ... this allows us to copy through
>         the child's page cache (which is coherent with the parent's
>         before the cow) and thus pick up any cache changes without a
>         flush

Let me think about this way.

Well, this would improve both cases of the first scenario of mine and
the second scenario.

But... I think that even if we would have copy_user_highpage which
does copy by user address, we need to flush at ptep_set_wrprotect.  I
think that we need to keep the condition: no dirty cache for COW page.

Think about third scenario of threads and fork:

(1) In process A, there are multiple threads, and a thread A-1 invokes
    fork.  We have process B, with a different space identifier color.

(2) Another thread A-2 in process A runs while A-1 copies memory by
    dup_mmap.  A-2 writes to the address <x> in a page.  Let's call
    this page <oldpage>.

(3) We have dirty cache for <x> by A-2 at the time of
    ptep_set_wrprotect of thread A-1.  Suppose that we don't flush
    here.

(4) A-1 finishes copy, and sleeps.

(5) Child process B is waken up and sees old value at <x> in <oldpage>,
    through different cache line.  B sleeps.

(6) A-2 is waken up.  A-2 touches the memory again, breaks COW.  A-2
    copies data on <oldpage> to <newpage>.  OK, <newpage> is
    consistent with copy_user_highpage by user address.

    Note that during this copy, the cache line of <x> by A-2 is
    flushed out to <oldpage>.  It invokes another memory fault and COW
    break.  (I think that this memory fault is unhealthy.)
    Then, new value goes to <x> on <oldpage> (when it's physically
    tagged cache).

    A-2 sleeps.

(7) Child process B is waken up.  When it accesses at <x>, it sees new
    value suddenly.


If we flush cache to <oldpage> at ptep_set_wrprotect, this couldn't
occur.


			*	*	*


I know that we should not do "threads and fork".  It is difficult to
define clean semantics.  Because another thread may touch memory while
a thread which does memory copy for fork, the memory what the child
process will see may be inconsistent.  For the child, a page might be
new, while another page might be old.

For VIVT-WB cache machine, I am considering a possibility for the
child process to have inconsistent memory even within a single page
(when we have no flush at ptep_set_wrprotect).

It will be needed for me to talk to linux-arch soon or later.
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: threads and fork on machine with VIPT-WB cache
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On Tue, 2010-04-06 at 13:57 +0900, NIIBE Yutaka wrote:
> John David Anglin wrote:
> > It is interesting that in the case of the Debian bug that
> > a thread of the parent process causes the COW break and thereby corrupts
> > its own memory.  As far as I can tell, the fork'd child never writes
> > to the memory that causes the fault.
> 
> Thanks for writing and testing a patch.
> 
> The case of #561203 is second scenario.  I think that this case is
> relevant to VIVT-WB machine too (provided kernel does copy by kernel
> address).
> 
> James Bottomley wrote:
> > So this is going to be a hard sell because of the arch churn. There are,
> > however, three ways to do it with the original signature.
> 
> Currently, I think that signature change would be inevitable for
> ptep_set_wrprotect.

Well we can't do it by claiming several architectures are wrong in their
implementation.  We might do it by claiming to need vma knowledge ...
however, even if you want the flush, as I said, you don't need to change
the signature.

> >      1. implement copy_user_highpage ... this allows us to copy through
> >         the child's page cache (which is coherent with the parent's
> >         before the cow) and thus pick up any cache changes without a
> >         flush
> 
> Let me think about this way.
> 
> Well, this would improve both cases of the first scenario of mine and
> the second scenario.
> 
> But... I think that even if we would have copy_user_highpage which
> does copy by user address, we need to flush at ptep_set_wrprotect.  I
> think that we need to keep the condition: no dirty cache for COW page.
> 
> Think about third scenario of threads and fork:
> 
> (1) In process A, there are multiple threads, and a thread A-1 invokes
>     fork.  We have process B, with a different space identifier color.

I don't understand what you mean by space colour ... there's cache
colour which refers to the line in the cache to which the the physical
memory maps.  The way PA is set up, space ID doesn't factor into cache
colour.

> (2) Another thread A-2 in process A runs while A-1 copies memory by
>     dup_mmap.  A-2 writes to the address <x> in a page.  Let's call
>     this page <oldpage>.
> 
> (3) We have dirty cache for <x> by A-2 at the time of
>     ptep_set_wrprotect of thread A-1.  Suppose that we don't flush
>     here.
> 
> (4) A-1 finishes copy, and sleeps.
> 
> (5) Child process B is waken up and sees old value at <x> in <oldpage>,
>     through different cache line.  B sleeps.

This isn't possible.  at this point, A and B have the same virtual
address and mapping for <oldpage> this means they are the same cache
colour, so they both see the cached value.

James

> (6) A-2 is waken up.  A-2 touches the memory again, breaks COW.  A-2
>     copies data on <oldpage> to <newpage>.  OK, <newpage> is
>     consistent with copy_user_highpage by user address.
> 
>     Note that during this copy, the cache line of <x> by A-2 is
>     flushed out to <oldpage>.  It invokes another memory fault and COW
>     break.  (I think that this memory fault is unhealthy.)
>     Then, new value goes to <x> on <oldpage> (when it's physically
>     tagged cache).
> 
>     A-2 sleeps.
> 
> (7) Child process B is waken up.  When it accesses at <x>, it sees new
>     value suddenly.
> 
> 
> If we flush cache to <oldpage> at ptep_set_wrprotect, this couldn't
> occur.
> 
> 
> 			*	*	*
> 
> 
> I know that we should not do "threads and fork".  It is difficult to
> define clean semantics.  Because another thread may touch memory while
> a thread which does memory copy for fork, the memory what the child
> process will see may be inconsistent.  For the child, a page might be
> new, while another page might be old.
> 
> For VIVT-WB cache machine, I am considering a possibility for the
> child process to have inconsistent memory even within a single page
> (when we have no flush at ptep_set_wrprotect).
> 
> It will be needed for me to talk to linux-arch soon or later.


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On Tue, 2010-04-06 at 08:37 -0500, James Bottomley wrote:
> > (5) Child process B is waken up and sees old value at <x> in
> <oldpage>,
> >     through different cache line.  B sleeps.
> 
> This isn't possible.  at this point, A and B have the same virtual
> address and mapping for <oldpage> this means they are the same cache
> colour, so they both see the cached value.

Perhaps to add more detail to this.  In spite of what the arch manual
says (it says the congruence stride is 16MB), the congruence stride on
all manufactured parisc processors is 4MB.  This means that any virtual
addresses, regardless of space id, that are equal modulo 4MB have the
same cache colour.

James
 

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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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On 04/02/2010 09:35 PM, John David Anglin wrote:
> On Fri, 02 Apr 2010, NIIBE Yutaka wrote:
> 
>> NIIBE Yutaka wrote:
>>> To have same semantics as other archs, I think that VIPT-WB cache
>>> machine should have cache flush at ptep_set_wrprotect, so that memory
>>> of the page has up-to-date data.  Yes, it will be huge performance
>>> impact for fork.  But I don't find any good solution other than this
>>> yet.
>>
>> I think we could do something like (only for VIPT-WB cache machine):
>>
>> -	static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long 
>> address, pte_t *ptep)
>>
>> +	static inline void ptep_set_wrprotect(struct vm_area_struct *vma, struct 
>> mm_struct *mm, unsigned long addr, pte_t *ptep)
>> 	{
>> 		pte_t old_pte = *ptep;
>> +		if (atomic_read(&mm->mm_users) > 1)
>> +			flush_cache_page(vma, addr, pte_pfn(old_pte));
>> 		set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
>> 	}
> 
> I tested the hack below on two machines currently running 2.6.33.2
> UP kernels.  The change seems to fix Debian #561203 (minifail bug)!
> Thus, I definitely think you are on the right track.  I'll continue
> to test.
> 
> I suspect the same issue is present for SMP kernels.

Hi Dave,

I tested your patch today on one of my machines with plain kernel 2.6.33 (32bit, SMP, B2000 I think).
Sadly I still did see the minifail bug.

Are you sure, that the patch fixed this bug for you?

Helge

do_page_fault() pid=21470 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=7986 command='minifail3' type=6 address=0x00000003                                                                                 
do_page_fault() pid=19952 command='minifail3' type=6 address=0x00000003                                                                                
do_page_fault() pid=13549 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=21862 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=4615 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=17336 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=21986 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=2157 command='minifail3' type=15 address=0x000000dc
do_page_fault() pid=23886 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=2681 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=3229 command='minifail3' type=15 address=0x000000ec
do_page_fault() pid=26095 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=20722 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=19912 command='minifail3' type=15 address=0x000000ec
...
pagealloc: memory corruption
7db0c780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
7db0c790: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
7db0c7a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
7db0c7b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
Backtrace:
 [<1011ec14>] show_stack+0x18/0x28
 [<10117ba0>] dump_stack+0x1c/0x2c
 [<101c6594>] kernel_map_pages+0x2a0/0x2b8
 [<1019e6c8>] get_page_from_freelist+0x3d4/0x614
 [<1019ea3c>] __alloc_pages_nodemask+0x134/0x610
 [<101b1d20>] do_wp_page+0x268/0xac0
 [<101b3b34>] handle_mm_fault+0x4d4/0x7c4
 [<1011d854>] do_page_fault+0x1f8/0x2fc
 [<1011f450>] handle_interruption+0xec/0x730
 [<10103078>] intr_check_sig+0x0/0x34
...
do_page_fault() pid=13414 command='minifail3' type=15 address=0x000000dc
do_page_fault() pid=22776 command='minifail3' type=15 address=0x00000000
do_page_fault() pid=26290 command='minifail3' type=15 address=0x000000ec
do_page_fault() pid=1399 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=16130 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=26401 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=3383 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=3400 command='minifail3' type=15 address=0x00000004
do_page_fault() pid=18659 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=3730 command='minifail3' type=6 address=0x00000003
do_page_fault() pid=28828 command='minifail3' type=6 address=0x00000003
--
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From - Thu Nov 08 21:05:50 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: threads and fork on machine with VIPT-WB cache
Date: Thu, 8 Apr 2010 17:54:54 -0400
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Cc: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
	NIIBE Yutaka <gniibe@fsij.org>, linux-parisc@vger.kernel.org,
	pkg-gauche-devel@lists.alioth.debian.org, 561203@bugs.debian.org
To: Helge Deller <deller@gmx.de>
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On Thu, 08 Apr 2010, Helge Deller wrote:

> On 04/02/2010 09:35 PM, John David Anglin wrote:
> > On Fri, 02 Apr 2010, NIIBE Yutaka wrote:
> > 
> >> NIIBE Yutaka wrote:
> >>> To have same semantics as other archs, I think that VIPT-WB cache
> >>> machine should have cache flush at ptep_set_wrprotect, so that memory
> >>> of the page has up-to-date data.  Yes, it will be huge performance
> >>> impact for fork.  But I don't find any good solution other than this
> >>> yet.
> >>
> >> I think we could do something like (only for VIPT-WB cache machine):
> >>
> >> -	static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long 
> >> address, pte_t *ptep)
> >>
> >> +	static inline void ptep_set_wrprotect(struct vm_area_struct *vma, struct 
> >> mm_struct *mm, unsigned long addr, pte_t *ptep)
> >> 	{
> >> 		pte_t old_pte = *ptep;
> >> +		if (atomic_read(&mm->mm_users) > 1)
> >> +			flush_cache_page(vma, addr, pte_pfn(old_pte));
> >> 		set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
> >> 	}
> > 
> > I tested the hack below on two machines currently running 2.6.33.2
> > UP kernels.  The change seems to fix Debian #561203 (minifail bug)!
> > Thus, I definitely think you are on the right track.  I'll continue
> > to test.
> > 
> > I suspect the same issue is present for SMP kernels.
> 
> Hi Dave,
> 
> I tested your patch today on one of my machines with plain kernel 2.6.33 (32bit, SMP, B2000 I think).
> Sadly I still did see the minifail bug.
> 
> Are you sure, that the patch fixed this bug for you?

Seemed to, but I have a bunch of other changes installed.  Possibly,
the change to cacheflush.h is important.  It affects all PA8000.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 716634d..d7fabc4 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -24,29 +24,46 @@
  * Hash function to index into a different SPINLOCK.
  * Since "a" is usually an address, use one spinlock per cacheline.
  */
-#  define ATOMIC_HASH_SIZE 4
-#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_HASH_SIZE (4096/L1_CACHE_BYTES)  /* 4 */
+#  define ATOMIC_HASH(a)      (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_USER_HASH(a) (&(__atomic_user_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
 
 extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
+extern arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 
 /* Can't use raw_spin_lock_irq because of #include problems, so
  * this is the substitute */
-#define _atomic_spin_lock_irqsave(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);		\
+#define _atomic_spin_lock_irqsave_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;		\
 	local_irq_save(f);			\
 	arch_spin_lock(s);			\
 } while(0)
 
-#define _atomic_spin_unlock_irqrestore(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);			\
+#define _atomic_spin_unlock_irqrestore_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;			\
 	arch_spin_unlock(s);				\
 	local_irq_restore(f);				\
 } while(0)
 
+/* kernel memory locks */
+#define _atomic_spin_lock_irqsave(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_HASH(l))
+
+/* userspace memory locks */
+#define _atomic_spin_lock_irqsave_user(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_USER_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore_user(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_USER_HASH(l))
 
 #else
 #  define _atomic_spin_lock_irqsave(l,f) do { local_irq_save(f); } while (0)
 #  define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
+#  define _atomic_spin_lock_irqsave_user(l,f) _atomic_spin_lock_irqsave(l,f)
+#  define _atomic_spin_unlock_irqrestore_user(l,f) _atomic_spin_lock_irqsave_user(l,f)
 #endif
 
 /* This should get optimized out since it's never called.
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7a73b61..ab87176 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -2,6 +2,7 @@
 #define _PARISC_CACHEFLUSH_H
 
 #include <linux/mm.h>
+#include <linux/uaccess.h>
 
 /* The usual comment is "Caches aren't brain-dead on the <architecture>".
  * Unfortunately, that doesn't apply to PA-RISC. */
@@ -113,11 +114,20 @@ static inline void *kmap(struct page *page)
 
 #define kunmap(page)			kunmap_parisc(page_address(page))
 
-#define kmap_atomic(page, idx)		page_address(page)
+static inline void *kmap_atomic(struct page *page, enum km_type idx)
+{
+	pagefault_disable();
+	return page_address(page);
+}
 
-#define kunmap_atomic(addr, idx)	kunmap_parisc(addr)
+static inline void kunmap_atomic(void *addr, enum km_type idx)
+{
+	kunmap_parisc(addr);
+	pagefault_enable();
+}
 
-#define kmap_atomic_pfn(pfn, idx)	page_address(pfn_to_page(pfn))
+#define kmap_atomic_prot(page, idx, prot)	kmap_atomic(page, idx)
+#define kmap_atomic_pfn(pfn, idx)	kmap_atomic(pfn_to_page(pfn), (idx))
 #define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
 #endif
 
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 0c705c3..7bc963e 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -55,6 +55,7 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 {
 	int err = 0;
 	int uval;
+	unsigned long flags;
 
 	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
 	 * our gateway page, and causes no end of trouble...
@@ -65,10 +66,15 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
 		return -EFAULT;
 
+	_atomic_spin_lock_irqsave_user(uaddr, flags);
+
 	err = get_user(uval, uaddr);
-	if (err) return -EFAULT;
-	if (uval == oldval)
-		err = put_user(newval, uaddr);
+	if (!err)
+		if (uval == oldval)
+			err = put_user(newval, uaddr);
+
+	_atomic_spin_unlock_irqrestore_user(uaddr, flags);
+
 	if (err) return -EFAULT;
 	return uval;
 }
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index a27d2e2..53ba987 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -14,6 +14,7 @@
 #include <linux/bitops.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
+extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn);
 
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
@@ -456,17 +457,22 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 	return old_pte;
 }
 
-static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+static inline void ptep_set_wrprotect(struct vm_area_struct *vma, struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
 #ifdef CONFIG_SMP
 	unsigned long new, old;
+#endif
+	pte_t old_pte = *ptep;
+
+	if (pte_dirty(old_pte))
+		flush_cache_page(vma, addr, pte_pfn(old_pte));
 
+#ifdef CONFIG_SMP
 	do {
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
 #else
-	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
 #endif
 }
diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
index d91357b..4653c77 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -160,7 +160,7 @@ static inline void set_eiem(unsigned long val)
    ldcd). */
 
 #define __PA_LDCW_ALIGNMENT	4
-#define __ldcw_align(a) ((volatile unsigned int *)a)
+#define __ldcw_align(a) (&(a)->slock)
 #define __LDCW	"ldcw,co"
 
 #endif /*!CONFIG_PA20*/
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index ec787b4..b2f35b2 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -137,6 +137,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -225,6 +226,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
@@ -290,5 +292,11 @@ int main(void)
 	BLANK();
 	DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
 	BLANK();
+
+#ifdef CONFIG_SMP
+	DEFINE(ASM_ATOMIC_HASH_SIZE_SHIFT, __builtin_ffs(ATOMIC_HASH_SIZE)-1);
+	DEFINE(ASM_ATOMIC_HASH_ENTRY_SHIFT, __builtin_ffs(sizeof(__atomic_hash[0]))-1);
+#endif
+
 	return 0;
 }
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3a44f7f..a7e9472 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -364,32 +364,6 @@
 	.align		32
 	.endm
 
-	/* The following are simple 32 vs 64 bit instruction
-	 * abstractions for the macros */
-	.macro		EXTR	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	extrd,u		\reg1,32+(\start),\length,\reg2
-#else
-	extrw,u		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEP	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	depd		\reg1,32+(\start),\length,\reg2
-#else
-	depw		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEPI	val,start,length,reg
-#ifdef CONFIG_64BIT
-	depdi		\val,32+(\start),\length,\reg
-#else
-	depwi		\val,\start,\length,\reg
-#endif
-	.endm
-
 	/* In LP64, the space contains part of the upper 32 bits of the
 	 * fault.  We have to extract this and place it in the va,
 	 * zeroing the corresponding bits in the space register */
@@ -442,19 +416,19 @@
 	 */
 	.macro		L2_ptep	pmd,pte,index,va,fault
 #if PT_NLEVELS == 3
-	EXTR		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
+	extru		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
 #else
-	EXTR		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
+	extru		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 #endif
-	DEP             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	dep             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	copy		%r0,\pte
 	ldw,s		\index(\pmd),\pmd
 	bb,>=,n		\pmd,_PxD_PRESENT_BIT,\fault
-	DEP		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
+	dep		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
 	copy		\pmd,%r9
 	SHLREG		%r9,PxD_VALUE_SHIFT,\pmd
-	EXTR		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
-	DEP		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	extru		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
+	dep		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
 	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
 	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
@@ -605,7 +579,7 @@
 	depdi		0,31,32,\tmp
 #endif
 	copy		\va,\tmp1
-	DEPI		0,31,23,\tmp1
+	depi		0,31,23,\tmp1
 	cmpb,COND(<>),n	\tmp,\tmp1,\fault
 	ldi		(_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot
 	depd,z		\prot,8,7,\prot
@@ -758,6 +732,10 @@ ENTRY(__kernel_thread)
 
 	STREG	%r22, PT_GR22(%r1)	/* save r22 (arg5) */
 	copy	%r0, %r22		/* user_tid */
+	copy	%r0, %r21		/* child_tid */
+#else
+	stw	%r0, -52(%r30)	     	/* user_tid */
+	stw	%r0, -56(%r30)	     	/* child_tid */
 #endif
 	STREG	%r26, PT_GR26(%r1)  /* Store function & argument for child */
 	STREG	%r25, PT_GR25(%r1)
@@ -765,7 +743,7 @@ ENTRY(__kernel_thread)
 	ldo	CLONE_VM(%r26), %r26   /* Force CLONE_VM since only init_mm */
 	or	%r26, %r24, %r26      /* will have kernel mappings.	 */
 	ldi	1, %r25			/* stack_start, signals kernel thread */
-	stw	%r0, -52(%r30)	     	/* user_tid */
+	ldi	0, %r23			/* child_stack_size */
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
@@ -972,7 +950,10 @@ intr_check_sig:
 	BL	do_notify_resume,%r2
 	copy	%r16, %r26			/* struct pt_regs *regs */
 
-	b,n	intr_check_sig
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 intr_restore:
 	copy            %r16,%r29
@@ -997,13 +978,6 @@ intr_restore:
 
 	rfi
 	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
 
 #ifndef CONFIG_PREEMPT
 # define intr_do_preempt	intr_restore
@@ -1026,14 +1000,12 @@ intr_do_resched:
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	ldil	L%intr_check_sig, %r2
-#ifndef CONFIG_64BIT
-	b	schedule
-#else
-	load32	schedule, %r20
-	bv	%r0(%r20)
-#endif
-	ldo	R%intr_check_sig(%r2), %r2
+	BL	schedule,%r2
+	nop
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 	/* preempt the current task on returning to kernel
 	 * mode from an interrupt, iff need_resched is set,
@@ -1772,9 +1744,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1804,7 +1776,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1823,8 +1795,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1847,7 +1820,9 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
@@ -2076,9 +2051,10 @@ syscall_restore:
 	LDREG	TASK_PT_GR31(%r1),%r31	   /* restore syscall rp */
 
 	/* NOTE: We use rsm/ssm pair to make this operation atomic */
+	LDREG   TASK_PT_GR30(%r1),%r1              /* Get user sp */
 	rsm     PSW_SM_I, %r0
-	LDREG   TASK_PT_GR30(%r1),%r30             /* restore user sp */
-	mfsp	%sr3,%r1			   /* Get users space id */
+	copy    %r1,%r30                           /* Restore user sp */
+	mfsp    %sr3,%r1                           /* Get user space id */
 	mtsp    %r1,%sr7                           /* Restore sr7 */
 	ssm     PSW_SM_I, %r0
 
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index cb71f3d..84b3239 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -128,6 +128,14 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_INFO "The 32-bit Kernel has started...\n");
 #endif
 
+	/* Consistency check on the size and alignments of our spinlocks */
+#ifdef CONFIG_SMP
+	BUILD_BUG_ON(sizeof(arch_spinlock_t) != __PA_LDCW_ALIGNMENT);
+	BUG_ON((unsigned long)&__atomic_hash[0] & (__PA_LDCW_ALIGNMENT-1));
+	BUG_ON((unsigned long)&__atomic_hash[1] & (__PA_LDCW_ALIGNMENT-1));
+#endif
+	BUILD_BUG_ON((1<<L1_CACHE_SHIFT) != L1_CACHE_BYTES);
+
 	pdc_console_init();
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f5f9602..68e75ce 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -47,18 +47,17 @@ ENTRY(linux_gateway_page)
 	KILL_INSN
 	.endr
 
-	/* ADDRESS 0xb0 to 0xb4, lws uses 1 insns for entry */
+	/* ADDRESS 0xb0 to 0xb8, lws uses two insns for entry */
 	/* Light-weight-syscall entry must always be located at 0xb0 */
 	/* WARNING: Keep this number updated with table size changes */
 #define __NR_lws_entries (2)
 
 lws_entry:
-	/* Unconditional branch to lws_start, located on the 
-	   same gateway page */
-	b,n	lws_start
+	gate	lws_start, %r0		/* increase privilege */
+	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
 
-	/* Fill from 0xb4 to 0xe0 */
-	.rept 11
+	/* Fill from 0xb8 to 0xe0 */
+	.rept 10
 	KILL_INSN
 	.endr
 
@@ -423,9 +422,6 @@ tracesys_sigexit:
 
 	*********************************************************/
 lws_start:
-	/* Gate and ensure we return to userspace */
-	gate	.+8, %r0
-	depi	3, 31, 2, %r31	/* Ensure we return to userspace */
 
 #ifdef CONFIG_64BIT
 	/* FIXME: If we are a 64-bit kernel just
@@ -442,7 +438,7 @@ lws_start:
 #endif	
 
         /* Is the lws entry number valid? */
-	comiclr,>>=	__NR_lws_entries, %r20, %r0
+	comiclr,>>	__NR_lws_entries, %r20, %r0
 	b,n	lws_exit_nosys
 
 	/* WARNING: Trashing sr2 and sr3 */
@@ -473,7 +469,7 @@ lws_exit:
 	/* now reset the lowest bit of sp if it was set */
 	xor	%r30,%r1,%r30
 #endif
-	be,n	0(%sr3, %r31)
+	be,n	0(%sr7, %r31)
 
 
 	
@@ -529,7 +525,6 @@ lws_compare_and_swap32:
 #endif
 
 lws_compare_and_swap:
-#ifdef CONFIG_SMP
 	/* Load start of lock table */
 	ldil	L%lws_lock_start, %r20
 	ldo	R%lws_lock_start(%r20), %r28
@@ -572,8 +567,6 @@ cas_wouldblock:
 	ldo	2(%r0), %r28				/* 2nd case */
 	b	lws_exit				/* Contended... */
 	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
-#endif
-/* CONFIG_SMP */
 
 	/*
 		prev = *addr;
@@ -601,13 +594,11 @@ cas_action:
 1:	ldw	0(%sr3,%r26), %r28
 	sub,<>	%r28, %r25, %r0
 2:	stw	%r24, 0(%sr3,%r26)
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	/* Clear thread register indicator */
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	/* Return to userspace, set no error */
 	b	lws_exit
@@ -615,12 +606,10 @@ cas_action:
 
 3:		
 	/* Error occured on load or store */
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	b	lws_exit
 	ldo	-EFAULT(%r0),%r21	/* set errno */
@@ -672,7 +661,6 @@ ENTRY(sys_call_table64)
 END(sys_call_table64)
 #endif
 
-#ifdef CONFIG_SMP
 	/*
 		All light-weight-syscall atomic operations 
 		will use this set of locks 
@@ -694,8 +682,6 @@ ENTRY(lws_lock_start)
 	.endr
 END(lws_lock_start)
 	.previous
-#endif
-/* CONFIG_SMP for lws_lock_start */
 
 .end
 
diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c
index 353963d..bae6a86 100644
--- a/arch/parisc/lib/bitops.c
+++ b/arch/parisc/lib/bitops.c
@@ -15,6 +15,9 @@
 arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
 	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
 };
+arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
+	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
+};
 #endif
 
 #ifdef CONFIG_64BIT
diff --git a/kernel/fork.c b/kernel/fork.c
index f88bd98..108b1ed 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -608,7 +608,10 @@ void mm_release(struct task_struct *tsk, struct mm_struct *mm)
 			 * We don't check the error code - if userspace has
 			 * not set up a proper pointer then tough luck.
 			 */
+			unsigned long flags;
+			_atomic_spin_lock_irqsave_user(tsk->clear_child_tid, flags);
 			put_user(0, tsk->clear_child_tid);
+			_atomic_spin_unlock_irqrestore_user(tsk->clear_child_tid, flags);
 			sys_futex(tsk->clear_child_tid, FUTEX_WAKE,
 					1, NULL, NULL, 0);
 		}
@@ -1432,8 +1435,12 @@ long do_fork(unsigned long clone_flags,
 
 		nr = task_pid_vnr(p);
 
-		if (clone_flags & CLONE_PARENT_SETTID)
+		if (clone_flags & CLONE_PARENT_SETTID) {
+			unsigned long flags;
+			_atomic_spin_lock_irqsave_user(parent_tidptr, flags);
 			put_user(nr, parent_tidptr);
+			_atomic_spin_unlock_irqrestore_user(parent_tidptr, flags);
+		}
 
 		if (clone_flags & CLONE_VFORK) {
 			p->vfork_done = &vfork;
diff --git a/mm/memory.c b/mm/memory.c
index 09e4b1b..21c2916 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -616,7 +616,7 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	 * in the parent and the child
 	 */
 	if (is_cow_mapping(vm_flags)) {
-		ptep_set_wrprotect(src_mm, addr, src_pte);
+		ptep_set_wrprotect(vma, src_mm, addr, src_pte);
 		pte = pte_wrprotect(pte);
 	}
 
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From - Thu Nov 08 21:05:50 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: threads and fork on machine with VIPT-WB cache
Date: Thu, 8 Apr 2010 18:44:45 -0400 (EDT)
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> On Thu, 08 Apr 2010, Helge Deller wrote:

> > I tested your patch today on one of my machines with plain kernel 2.6.33 (32bit, SMP, B2000 I think).
> > Sadly I still did see the minifail bug.
> > 
> > Are you sure, that the patch fixed this bug for you?
> 
> Seemed to, but I have a bunch of other changes installed.  Possibly,
> the change to cacheflush.h is important.  It affects all PA8000.

I also think the change suggested by James

+       if (pte_dirty(old_pte))

is important for SMP.  With the patch set that I sent, my rp3440 and
gsyprf11 seem reasonably stable running 2.6.33.2 SMP.  I doubt all
problems are solved but things are a lot better than before.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: threads and fork on machine with VIPT-WB cache
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On Thu, Apr 8, 2010 at 6:44 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> On Thu, 08 Apr 2010, Helge Deller wrote:
>
>> > I tested your patch today on one of my machines with plain kernel =
2.6.33 (32bit, SMP, B2000 I think).
>> > Sadly I still did see the minifail bug.
>> >
>> > Are you sure, that the patch fixed this bug for you?
>>
>> Seemed to, but I have a bunch of other changes installed. =A0Possibl=
y,
>> the change to cacheflush.h is important. =A0It affects all PA8000.
>
> I also think the change suggested by James
>
> + =A0 =A0 =A0 if (pte_dirty(old_pte))
>
> is important for SMP. =A0With the patch set that I sent, my rp3440 an=
d
> gsyprf11 seem reasonably stable running 2.6.33.2 SMP. =A0I doubt all
> problems are solved but things are a lot better than before.

I have trimmed the CC a bit.

We need to start splitting up your giant "stability" patch into
manageable chunks.

=46or example, are the futex fixes anywhere for Kyle to pickup?

I could test those independently and submit to Kyle after testing.

Cheers,
Carlos.
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On Fri, 09 Apr 2010, Carlos O'Donell wrote:

> We need to start splitting up your giant "stability" patch into
> manageable chunks.

I agree.  What I posted was not intended as a submission.  Some
of the changes aren't mine, some are cleanups, some are "obvious",
some are not obvious and may well be wrong, or inefficient.

I posted the change to not clobber r19 on fork/clone syscalls,
but there has been no response to it.

I will try split up the change this weekend.

> For example, are the futex fixes anywhere for Kyle to pickup?

The futex fixes are Helge's and were posted to the list on Wed,
03 Feb 2010 23:03:49 +0100 along with Helge's minifail3.c.

The change to syscall.S in the above post included two hunks from me.
I removed Helge's portion so that I could enable LWS locking on UP
builds because of the concern that a page fault on COW memory could
cause user code to be scheduled in the locking code.

I think there is merit in using __atomic_user_hash, etc, but it
will take a bit of work to make it available in UP kernels.
I think Helge's change to fork.c is probably not necessary.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:51 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: threads and fork on machine with VIPT-WB cache
Date: Fri, 09 Apr 2010 11:48:56 -0400
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To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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On Fri, 2010-04-09 at 11:13 -0400, John David Anglin wrote:
> On Fri, 09 Apr 2010, Carlos O'Donell wrote:
> 
> > We need to start splitting up your giant "stability" patch into
> > manageable chunks.
> 
> I agree.  What I posted was not intended as a submission.  Some
> of the changes aren't mine, some are cleanups, some are "obvious",
> some are not obvious and may well be wrong, or inefficient.
> 
> I posted the change to not clobber r19 on fork/clone syscalls,
> but there has been no response to it.

Theory looks fine to me ... although Helge sees no difference in
behaviour, I'd be happy to apply on the principle of no harm and
theoretically necessary.

> I will try split up the change this weekend.
> 
> > For example, are the futex fixes anywhere for Kyle to pickup?
> 
> The futex fixes are Helge's and were posted to the list on Wed,
> 03 Feb 2010 23:03:49 +0100 along with Helge's minifail3.c.
> 
> The change to syscall.S in the above post included two hunks from me.
> I removed Helge's portion so that I could enable LWS locking on UP
> builds because of the concern that a page fault on COW memory could
> cause user code to be scheduled in the locking code.
> 
> I think there is merit in using __atomic_user_hash, etc, but it
> will take a bit of work to make it available in UP kernels.
> I think Helge's change to fork.c is probably not necessary.

I'm fairly convinced we need the flush on kmap(_atomic) as well if the
user had dirtied the page.  Right at the moment if the aliases are
inequivalent (which they are about 99.9% of the time) we're in danger of
using stale data in the kernel.  We also need a flush on kunmap if the
kernel has dirtied the page.

James


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From - Thu Nov 08 21:05:51 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: threads and fork on machine with VIPT-WB cache
Date: Fri, 9 Apr 2010 12:22:48 -0400
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	Carlos O'Donell <carlos@systemhalted.org>, deller@gmx.de,
	gniibe@fsij.org, linux-parisc@vger.kernel.org
To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Fri, 09 Apr 2010, James Bottomley wrote:

> > I posted the change to not clobber r19 on fork/clone syscalls,
> > but there has been no response to it.
> 
> Theory looks fine to me ... although Helge sees no difference in
> behaviour, I'd be happy to apply on the principle of no harm and
> theoretically necessary.

Testcase is below.  Compile with `-static' to link with libc.a.
Testcase prints incorrect parent pid.

Carlos recently updated glibc so it saves/restores r19 across syscalls
in non-PIC code.  I thought Helge tested this update, so he wouldn't
see the problem unless he tested with an "old" version of glibc.

While there isn't a lot of code linked with -static (I mainly
use for debugging), there's no real reason that the kernel needs
to clobber r19 across fork/clone.

If we want to preserve pad0 for some future use, I think that it
should be possible to use another syscall clobbered register to
save the return pointer for the child.

> I'm fairly convinced we need the flush on kmap(_atomic) as well if the
> user had dirtied the page.  Right at the moment if the aliases are
> inequivalent (which they are about 99.9% of the time) we're in danger of
> using stale data in the kernel.  We also need a flush on kunmap if the
> kernel has dirtied the page.

This is presumably for PA8800/PA8900 processors?  I'm a bit surprised
that HP would change the cache coherency requirement for these processors
alone given the performance hit in maintaining coherency.  Is this an
issue for all systems with more than two processors?

I've wondered if checking the dirty bit in kunmap would help performance.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <unistd.h>

#define CALL_EXIT 0

int main (void)
{
  pid_t child;
  pid_t parent;
  char *cmd[] = { "bash", "-c", "echo In child $$;", (char *)0 };
  char *env[] = { "HOME=/tmp", (char *)0 };
  int ret;

  child = vfork();

  if (child == 0)
    {
      ret = execve("/bin/bash", cmd, env);
      // printf ("ret = %d\n", ret);
      _exit(1);
    }
  else
    {
      // printf("child != 0\n");
    }

  parent = getpid();
  printf("parent is %d\n", (unsigned int)parent);
  printf("child is %d\n", (unsigned int)child);

  return 0;
}
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From - Thu Nov 08 21:05:51 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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On Fri, 2010-04-09 at 12:22 -0400, John David Anglin wrote:
> On Fri, 09 Apr 2010, James Bottomley wrote:
> 
> > > I posted the change to not clobber r19 on fork/clone syscalls,
> > > but there has been no response to it.
> > 
> > Theory looks fine to me ... although Helge sees no difference in
> > behaviour, I'd be happy to apply on the principle of no harm and
> > theoretically necessary.
> 
> Testcase is below.  Compile with `-static' to link with libc.a.
> Testcase prints incorrect parent pid.
> 
> Carlos recently updated glibc so it saves/restores r19 across syscalls
> in non-PIC code.  I thought Helge tested this update, so he wouldn't
> see the problem unless he tested with an "old" version of glibc.
> 
> While there isn't a lot of code linked with -static (I mainly
> use for debugging), there's no real reason that the kernel needs
> to clobber r19 across fork/clone.
> 
> If we want to preserve pad0 for some future use, I think that it
> should be possible to use another syscall clobbered register to
> save the return pointer for the child.
> 
> > I'm fairly convinced we need the flush on kmap(_atomic) as well if the
> > user had dirtied the page.  Right at the moment if the aliases are
> > inequivalent (which they are about 99.9% of the time) we're in danger of
> > using stale data in the kernel.  We also need a flush on kunmap if the
> > kernel has dirtied the page.
> 
> This is presumably for PA8800/PA8900 processors?

No the pa88/89 problem was a clean alias resolution issue, which doesn't
exist on earlier processors that don't have the L3 PIPT cache.  The
problem I think we see infrequently (very infrequently) is that we kmap
a user page that has dirty cache lines and access it through the kernel
alias before the lines get cleaned.  This only occurs in a very few
areas of the kernel (like copy_user_highpage), but it's a potential
source of stale data through inequivalent aliasing.

>   I'm a bit surprised
> that HP would change the cache coherency requirement for these processors
> alone given the performance hit in maintaining coherency.  Is this an
> issue for all systems with more than two processors?

The requirement has always been flush the dirty line before accessing
via another alias (appendix F says that) I just think we've been playing
it a bit loose in the kmap area.

> I've wondered if checking the dirty bit in kunmap would help performance.

It would ... enormously ...  and also on kmap.  The latter is much
harder to do since we need the vaddr of the page and we don't get it fed
in via the API.

James


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From - Thu Nov 08 21:05:51 2018
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From: Helge Deller <deller@gmx.de>
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On 04/09/2010 05:13 PM, John David Anglin wrote:
> On Fri, 09 Apr 2010, Carlos O'Donell wrote:
>> For example, are the futex fixes anywhere for Kyle to pickup?
> 
> The futex fixes are Helge's and were posted to the list on Wed,
> 03 Feb 2010 23:03:49 +0100 along with Helge's minifail3.c.

Yes, but there is still a bug in the patch I sent, and it's still in Dave's big
patchset. See below...

--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
 #else
 #  define _atomic_spin_lock_irqsave(l,f) do { local_irq_save(f); } while (0)
 #  define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
+#  define _atomic_spin_lock_irqsave_user(l,f) _atomic_spin_lock_irqsave(l,f)
+#  define _atomic_spin_unlock_irqrestore_user(l,f) _atomic_spin_lock_irqsave_user(l,f)

atomic_spin_lock_irqsave_user() is wrong.
It needs to be:
->  atomic_spin_lock_irqsave_user(l,f) _atomic_spin_lock_irqsave_user(l,f)

In addition, my patch doesn't touches all needed atomic locks.

Nevertheless, on my B2000 (32bit, SMP, 2.6.32.2 kernel) I still do see the minifail bug.
The only difference seems to be, that the minifail3 program doesn't get stuck any
more. It still crashes though from time to time...
So, at least a little improvement :-)

Helge
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> On 04/09/2010 05:13 PM, John David Anglin wrote:
> > On Fri, 09 Apr 2010, Carlos O'Donell wrote:
> >> For example, are the futex fixes anywhere for Kyle to pickup?
> > 
> > The futex fixes are Helge's and were posted to the list on Wed,
> > 03 Feb 2010 23:03:49 +0100 along with Helge's minifail3.c.
> 
> Yes, but there is still a bug in the patch I sent, and it's still in Dave's big
> patchset. See below...
> 
> --- a/arch/parisc/include/asm/atomic.h
> +++ b/arch/parisc/include/asm/atomic.h
>  #else
>  #  define _atomic_spin_lock_irqsave(l,f) do { local_irq_save(f); } while (0)
>  #  define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
> +#  define _atomic_spin_lock_irqsave_user(l,f) _atomic_spin_lock_irqsave(l,f)
> +#  define _atomic_spin_unlock_irqrestore_user(l,f) _atomic_spin_lock_irqsave_user(l,f)
> 
> atomic_spin_lock_irqsave_user() is wrong.
> It needs to be:
> ->  atomic_spin_lock_irqsave_user(l,f) _atomic_spin_lock_irqsave_user(l,f)

Huh?  I see the following line is wrong...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:51 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Sat, 10 Apr 2010, Helge Deller wrote:

> Nevertheless, on my B2000 (32bit, SMP, 2.6.32.2 kernel) I still do see the minifail bug.
> The only difference seems to be, that the minifail3 program doesn't get stuck any
> more. It still crashes though from time to time...

There are some issues with your minifail3.c testcase.  The fork'd child
shouldn't do any I/O and it should exit using _exit(0).  Otherwise, it
can corrupt the I/O structures of the parent.  I'm not sure that this
is the issue on your B2000, but it's worth a try.

The testcase when modified as above doesn't crash on my c3750 (32bit, UP,
2.6.32.2 kernel).

I found in debugging this testcase that the crash was always associated
with the stack region for thread_run.  I put a big loop in thread_run.
The index for the loop when compiled at -O0 is constantly being saved
and restored on the stack.  I found that crashes occured after many
iterations of the loop.  Nothing else was going on.

The COW discussion convinced me that cache flushing was the problem.
The fork (clone) syscall causes the stack region used by thread_run
to become COW'd.  When thread_run is scheduled, the loop caused an
instant COW break and stack corruption.  The state of the stack region
generally returned to its state before the fork.

If the above doesn't fix the testcase on your B2000, there must be
some difference and other PA8000 machines.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: [PATCH] Call pagefault_disable/pagefault_enable in
	kmap_atomic/kunmap_atomic
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On Fri, 09 Apr 2010, John David Anglin wrote:

> On Fri, 09 Apr 2010, Carlos O'Donell wrote:
> 
> > We need to start splitting up your giant "stability" patch into
> > manageable chunks.

Here's the first chunk.

Based on the generic implementation of kmap_atomic and kunmap_atomic,
we should call pagefault_disable and pagefault_enable in our PA8000
implementation.

The define for kmap_atomic_prot was also missing, and I updated
kmap_atomic_pfn to use the generic implementation because of the
change to kmap_atomic.

I believe that this change is needed to fix the fork copy-on-write
bug.

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--EVF5PPMfhYS0aIcm
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diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7a73b61..ab87176 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -2,6 +2,7 @@
 #define _PARISC_CACHEFLUSH_H
 
 #include <linux/mm.h>
+#include <linux/uaccess.h>
 
 /* The usual comment is "Caches aren't brain-dead on the <architecture>".
  * Unfortunately, that doesn't apply to PA-RISC. */
@@ -113,11 +114,20 @@ static inline void *kmap(struct page *page)
 
 #define kunmap(page)			kunmap_parisc(page_address(page))
 
-#define kmap_atomic(page, idx)		page_address(page)
+static inline void *kmap_atomic(struct page *page, enum km_type idx)
+{
+	pagefault_disable();
+	return page_address(page);
+}
 
-#define kunmap_atomic(addr, idx)	kunmap_parisc(addr)
+static inline void kunmap_atomic(void *addr, enum km_type idx)
+{
+	kunmap_parisc(addr);
+	pagefault_enable();
+}
 
-#define kmap_atomic_pfn(pfn, idx)	page_address(pfn_to_page(pfn))
+#define kmap_atomic_prot(page, idx, prot)	kmap_atomic(page, idx)
+#define kmap_atomic_pfn(pfn, idx)	kmap_atomic(pfn_to_page(pfn), (idx))
 #define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
 #endif
 

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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: [PATCH] Remove unnecessary macros from entry.S
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On Fri, 09 Apr 2010, Carlos O'Donell wrote:

> We need to start splitting up your giant "stability" patch into
> manageable chunks.

Here's the second chunk.  It's a cleanup.

The EXTR, DEP and DEPI macros are unnecessary.  There are PA 1.X
pneumonics available with the same functionality, and the DEP and DEPI
macros conflict with assembler pneumonics.

Tested on a variety of 32 and 64-bit systems.

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--TB36FDmn/VVEgNH/
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="entry.S.d"

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3a44f7f..a7e9472 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -364,32 +364,6 @@
 	.align		32
 	.endm
 
-	/* The following are simple 32 vs 64 bit instruction
-	 * abstractions for the macros */
-	.macro		EXTR	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	extrd,u		\reg1,32+(\start),\length,\reg2
-#else
-	extrw,u		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEP	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	depd		\reg1,32+(\start),\length,\reg2
-#else
-	depw		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEPI	val,start,length,reg
-#ifdef CONFIG_64BIT
-	depdi		\val,32+(\start),\length,\reg
-#else
-	depwi		\val,\start,\length,\reg
-#endif
-	.endm
-
 	/* In LP64, the space contains part of the upper 32 bits of the
 	 * fault.  We have to extract this and place it in the va,
 	 * zeroing the corresponding bits in the space register */
@@ -442,19 +416,19 @@
 	 */
 	.macro		L2_ptep	pmd,pte,index,va,fault
 #if PT_NLEVELS == 3
-	EXTR		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
+	extru		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
 #else
-	EXTR		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
+	extru		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 #endif
-	DEP             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	dep             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	copy		%r0,\pte
 	ldw,s		\index(\pmd),\pmd
 	bb,>=,n		\pmd,_PxD_PRESENT_BIT,\fault
-	DEP		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
+	dep		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
 	copy		\pmd,%r9
 	SHLREG		%r9,PxD_VALUE_SHIFT,\pmd
-	EXTR		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
-	DEP		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	extru		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
+	dep		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
 	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
 	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
@@ -605,7 +579,7 @@
 	depdi		0,31,32,\tmp
 #endif
 	copy		\va,\tmp1
-	DEPI		0,31,23,\tmp1
+	depi		0,31,23,\tmp1
 	cmpb,COND(<>),n	\tmp,\tmp1,\fault
 	ldi		(_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot
 	depd,z		\prot,8,7,\prot

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Subject: [PATCH] Delete unnecessary nop's in entry.S
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On Fri, 09 Apr 2010, Carlos O'Donell wrote:

> We need to start splitting up your giant "stability" patch into
> manageable chunks.

Here's the third chunk.  It removes some unnecessary nop's.

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3a44f7f..a7e9472 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -997,13 +978,6 @@ intr_restore:
 
 	rfi
 	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
 
 #ifndef CONFIG_PREEMPT
 # define intr_do_preempt	intr_restore

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Subject: [PATCH] Avoid interruption in critical region in entry.S
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On Fri, 09 Apr 2010, Carlos O'Donell wrote:

> We need to start splitting up your giant "stability" patch into
> manageable chunks.

Here's the fourth chunk.  Am I being paranoid?

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3a44f7f..a7e9472 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -2076,9 +2051,10 @@ syscall_restore:
 	LDREG	TASK_PT_GR31(%r1),%r31	   /* restore syscall rp */
 
 	/* NOTE: We use rsm/ssm pair to make this operation atomic */
+	LDREG   TASK_PT_GR30(%r1),%r1              /* Get user sp */
 	rsm     PSW_SM_I, %r0
-	LDREG   TASK_PT_GR30(%r1),%r30             /* restore user sp */
-	mfsp	%sr3,%r1			   /* Get users space id */
+	copy    %r1,%r30                           /* Restore user sp */
+	mfsp    %sr3,%r1                           /* Get user space id */
 	mtsp    %r1,%sr7                           /* Restore sr7 */
 	ssm     PSW_SM_I, %r0
 

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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] LWS fixes for syscall.S
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On Fri, 09 Apr 2010, Carlos O'Donell wrote:

> We need to start splitting up your giant "stability" patch into
> manageable chunks.

Here's the fifth chunk.  It contains a variety of fixes to the LWS
code in syscall.S.

1) Gate immediately and save a branch.
2) Fix off by one error in checking entry number.
3) Use sr7 instead of sr3 in error return path as sr3 might not
   contain correct value.
4) Enable locking on UP systems to prevent incorrect operation of
   the cas_action critical region on page faults.

Fixes 2 and 4 are new.

Tested on several systems, including UP c3750 with 2.6.33.2 kernel.

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f5f9602..68e75ce 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -47,18 +47,17 @@ ENTRY(linux_gateway_page)
 	KILL_INSN
 	.endr
 
-	/* ADDRESS 0xb0 to 0xb4, lws uses 1 insns for entry */
+	/* ADDRESS 0xb0 to 0xb8, lws uses two insns for entry */
 	/* Light-weight-syscall entry must always be located at 0xb0 */
 	/* WARNING: Keep this number updated with table size changes */
 #define __NR_lws_entries (2)
 
 lws_entry:
-	/* Unconditional branch to lws_start, located on the 
-	   same gateway page */
-	b,n	lws_start
+	gate	lws_start, %r0		/* increase privilege */
+	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
 
-	/* Fill from 0xb4 to 0xe0 */
-	.rept 11
+	/* Fill from 0xb8 to 0xe0 */
+	.rept 10
 	KILL_INSN
 	.endr
 
@@ -423,9 +422,6 @@ tracesys_sigexit:
 
 	*********************************************************/
 lws_start:
-	/* Gate and ensure we return to userspace */
-	gate	.+8, %r0
-	depi	3, 31, 2, %r31	/* Ensure we return to userspace */
 
 #ifdef CONFIG_64BIT
 	/* FIXME: If we are a 64-bit kernel just
@@ -442,7 +438,7 @@ lws_start:
 #endif	
 
         /* Is the lws entry number valid? */
-	comiclr,>>=	__NR_lws_entries, %r20, %r0
+	comiclr,>>	__NR_lws_entries, %r20, %r0
 	b,n	lws_exit_nosys
 
 	/* WARNING: Trashing sr2 and sr3 */
@@ -473,7 +469,7 @@ lws_exit:
 	/* now reset the lowest bit of sp if it was set */
 	xor	%r30,%r1,%r30
 #endif
-	be,n	0(%sr3, %r31)
+	be,n	0(%sr7, %r31)
 
 
 	
@@ -529,7 +525,6 @@ lws_compare_and_swap32:
 #endif
 
 lws_compare_and_swap:
-#ifdef CONFIG_SMP
 	/* Load start of lock table */
 	ldil	L%lws_lock_start, %r20
 	ldo	R%lws_lock_start(%r20), %r28
@@ -572,8 +567,6 @@ cas_wouldblock:
 	ldo	2(%r0), %r28				/* 2nd case */
 	b	lws_exit				/* Contended... */
 	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
-#endif
-/* CONFIG_SMP */
 
 	/*
 		prev = *addr;
@@ -601,13 +594,11 @@ cas_action:
 1:	ldw	0(%sr3,%r26), %r28
 	sub,<>	%r28, %r25, %r0
 2:	stw	%r24, 0(%sr3,%r26)
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	/* Clear thread register indicator */
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	/* Return to userspace, set no error */
 	b	lws_exit
@@ -615,12 +606,10 @@ cas_action:
 
 3:		
 	/* Error occured on load or store */
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	b	lws_exit
 	ldo	-EFAULT(%r0),%r21	/* set errno */
@@ -672,7 +661,6 @@ ENTRY(sys_call_table64)
 END(sys_call_table64)
 #endif
 
-#ifdef CONFIG_SMP
 	/*
 		All light-weight-syscall atomic operations 
 		will use this set of locks 
@@ -694,8 +682,6 @@ ENTRY(lws_lock_start)
 	.endr
 END(lws_lock_start)
 	.previous
-#endif
-/* CONFIG_SMP for lws_lock_start */
 
 .end
 

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On Sun, 2010-04-11 at 13:12 -0400, John David Anglin wrote:
> On Fri, 09 Apr 2010, Carlos O'Donell wrote:
> 
> > We need to start splitting up your giant "stability" patch into
> > manageable chunks.
> 
> Here's the fourth chunk.  Am I being paranoid?

Could you explain what difference you think it makes ... because I can't
really see one.

All the patch seems to be doing is setting r1 to the stack pointer with
interrupts enabled and then copying the value with interrupts disabled,
which is fine, but I don't see how it's different from setting r30
directly from the task entry within the interrupt disabled region.

James


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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Sun, 11 Apr 2010, James Bottomley wrote:

> On Sun, 2010-04-11 at 13:12 -0400, John David Anglin wrote:
> > On Fri, 09 Apr 2010, Carlos O'Donell wrote:
> > 
> > > We need to start splitting up your giant "stability" patch into
> > > manageable chunks.
> > 
> > Here's the fourth chunk.  Am I being paranoid?
> 
> Could you explain what difference you think it makes ... because I can't
> really see one.
> 
> All the patch seems to be doing is setting r1 to the stack pointer with
> interrupts enabled and then copying the value with interrupts disabled,
> which is fine, but I don't see how it's different from setting r30
> directly from the task entry within the interrupt disabled region.

If it is possible for an interruption such as a data TLB miss to occur
in the instruction that loads the stack pointer, then the period while
interrupts are disabled will be extended while the TLB miss is handled.
So, placing the load outside the critical region keeps the period where
interrupts are disabled as short as possible.

It may not be a big deal here but in time critical code issues like this
are important.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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This is a multi-part message in MIME format.
--------------000500000600050604070103
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

On 04/11/2010 12:53 AM, John David Anglin wrote:
> On Sat, 10 Apr 2010, Helge Deller wrote:
> 
>> Nevertheless, on my B2000 (32bit, SMP, 2.6.32.2 kernel) I still do see the minifail bug.
>> The only difference seems to be, that the minifail3 program doesn't get stuck any
>> more. It still crashes though from time to time...
> 
> There are some issues with your minifail3.c testcase.  The fork'd child
> shouldn't do any I/O and it should exit using _exit(0).  Otherwise, it
> can corrupt the I/O structures of the parent.  I'm not sure that this
> is the issue on your B2000, but it's worth a try.
> 
> The testcase when modified as above doesn't crash on my c3750 (32bit, UP,
> 2.6.32.2 kernel).
> 
> I found in debugging this testcase that the crash was always associated
> with the stack region for thread_run.  I put a big loop in thread_run.
> The index for the loop when compiled at -O0 is constantly being saved
> and restored on the stack.  I found that crashes occured after many
> iterations of the loop.  Nothing else was going on.
> 
> The COW discussion convinced me that cache flushing was the problem.
> The fork (clone) syscall causes the stack region used by thread_run
> to become COW'd.  When thread_run is scheduled, the loop caused an
> instant COW break and stack corruption.  The state of the stack region
> generally returned to its state before the fork.
> 
> If the above doesn't fix the testcase on your B2000, there must be
> some difference and other PA8000 machines.

Hi Dave,

I did tested the attached testcase. I think this is the version you sent last
time, and which has the _exit(0).

Nevertheless, I still see the crashes with all kernel patches applied.

What I usually do is to start up more than 8 screen sessions. In each of the
sessions I start the bash loop:
-> i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail; done;
and detach from the screen sessions.
After some time, the load goes up to 8-16 and a few crashes fill the syslog.
I'm sure the crashes are related to how much load the machine is, and how
often process switches will happen.
How many minifail testcases do you run in parallel?


ls3017:/scratch/linux-git# uname -a

Linux ls3017 2.6.33.2-32bit #31 SMP Fri Apr 9 12:36:49 CEST 2010 parisc GNU/Linux

ls3017:/scratch/linux-git# cat /proc/cpuinfo 

cpu family      : PA-RISC 2.0

cpu             : PA8500 (PCX-W)

cpu MHz         : 440.000000

model           : 9000/785/J5000

model name      : Forte W 2-way

I-cache         : 512 KB

D-cache         : 1024 KB (WB, direct mapped)

ITLB entries    : 160

DTLB entries    : 160 - shared with ITLB


Helge

--------------000500000600050604070103
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 name="minifail_dave.cpp"
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Content-Disposition: attachment;
 filename="minifail_dave.cpp"

#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

/*
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=561203

  clone(child_stack=0x4088d040, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x4108c4e8, tls=0x4108c900, child_tidptr=0x4108c4e8) = 14819
[pid 14819] set_robust_list(0x4108c4f0, 0xc) = 0
[pid 14818] clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x40002028) = 14820

 g++  minifail.cpp -o minifail -O0 -pthread -g

 i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail; done;

 */
void* thread_run(void* arg) {
	write(1,"Thread OK.\n",11);
}

int pure_test() {
	pthread_t thread;
	pthread_create(&thread, NULL, thread_run, NULL);

	switch (fork()) {
		case -1:
			perror("fork() failed");
		case 0:
			write(1,"Child OK.\n",10);
			_exit(0);
		default:
			break;
		
	}
	
	pthread_join(thread, NULL);
	return 0;
}

int main(int argc, char** argv) {
	return pure_test();
}


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From - Thu Nov 08 21:05:51 2018
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On Sun, 2010-04-11 at 14:45 -0400, John David Anglin wrote:
> On Sun, 11 Apr 2010, James Bottomley wrote:
> 
> > On Sun, 2010-04-11 at 13:12 -0400, John David Anglin wrote:
> > > On Fri, 09 Apr 2010, Carlos O'Donell wrote:
> > > 
> > > > We need to start splitting up your giant "stability" patch into
> > > > manageable chunks.
> > > 
> > > Here's the fourth chunk.  Am I being paranoid?
> > 
> > Could you explain what difference you think it makes ... because I can't
> > really see one.
> > 
> > All the patch seems to be doing is setting r1 to the stack pointer with
> > interrupts enabled and then copying the value with interrupts disabled,
> > which is fine, but I don't see how it's different from setting r30
> > directly from the task entry within the interrupt disabled region.
> 
> If it is possible for an interruption such as a data TLB miss to occur
> in the instruction that loads the stack pointer, then the period while
> interrupts are disabled will be extended while the TLB miss is handled.
> So, placing the load outside the critical region keeps the period where
> interrupts are disabled as short as possible.

Agreed, it's possible

> It may not be a big deal here but in time critical code issues like this
> are important.

I suppose it can't hurt ... TLB fault interruptions in interrupts are a
fact of life on PA ... even if it can be avoided in this case, there's
still hundreds of others where it can't.

James


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On Sun, 11 Apr 2010, Helge Deller wrote:

> Nevertheless, I still see the crashes with all kernel patches applied.
> 
> What I usually do is to start up more than 8 screen sessions. In each of the
> sessions I start the bash loop:
> -> i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail; done;
> and detach from the screen sessions.
> After some time, the load goes up to 8-16 and a few crashes fill the syslog.
> I'm sure the crashes are related to how much load the machine is, and how
> often process switches will happen.
> How many minifail testcases do you run in parallel?

Sigh, never more than one...

That said, I did realize last night that the cache flush in ptep_set_wrprotect
based on pte_dirty was flawed.  In a SMP kernel with a user on a different
cpu pounding on the page to be write protected, there was a race between
the pte_dirty check and the write protect.

Further, I don't believe the dirty bit is reliable.  Our cmpxchg is not
atomic with respect to changes in the dirty bit.  Thus, there is a small
window where a change in the dirty bit could get lost.

So for now, I think it safest to move the flush after the setting of the
write protect bit, and do it unconditionally.  This should be ok since
page faults are disabled.  I recognize that this will hurt performance.

I'm going to test the following on my rp3440.  The flushing has greatly
improved SMP userspace stability.  However, I have still seen a few issues
in the GCC testsuite.

Maybe it will help your B2000.  However, let's just go one step at a time.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index a27d2e2..e85f43c 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -14,6 +14,7 @@
 #include <linux/bitops.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
+extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn);
 
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
@@ -456,7 +457,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 	return old_pte;
 }
 
-static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+static inline void ptep_set_wrprotect(struct vm_area_struct *vma, struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
 #ifdef CONFIG_SMP
 	unsigned long new, old;
@@ -469,6 +470,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
 #endif
+
+	flush_cache_page(vma, addr, pte_pfn(*ptep));
 }
 
 #define pte_same(A,B)	(pte_val(A) == pte_val(B))
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From: Helge Deller <deller@gmx.de>
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Subject: Re: threads and fork on machine with VIPT-WB cache
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On 04/12/2010 12:25 AM, John David Anglin wrote:
> On Sun, 11 Apr 2010, Helge Deller wrote:
> 
>> Nevertheless, I still see the crashes with all kernel patches applied.
>>
>> What I usually do is to start up more than 8 screen sessions. In each of the
>> sessions I start the bash loop:
>> -> i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail; done;
>> and detach from the screen sessions.
>> After some time, the load goes up to 8-16 and a few crashes fill the syslog.
>> I'm sure the crashes are related to how much load the machine is, and how
>> often process switches will happen.
>> How many minifail testcases do you run in parallel?
> 
> Sigh, never more than one...
> 
> That said, I did realize last night that the cache flush in ptep_set_wrprotect
> based on pte_dirty was flawed.  In a SMP kernel with a user on a different
> cpu pounding on the page to be write protected, there was a race between
> the pte_dirty check and the write protect.
> 
> Further, I don't believe the dirty bit is reliable.  Our cmpxchg is not
> atomic with respect to changes in the dirty bit.  Thus, there is a small
> window where a change in the dirty bit could get lost.
> 
> So for now, I think it safest to move the flush after the setting of the
> write protect bit, and do it unconditionally.  This should be ok since
> page faults are disabled.  I recognize that this will hurt performance.
> 
> I'm going to test the following on my rp3440.  The flushing has greatly
> improved SMP userspace stability.  However, I have still seen a few issues
> in the GCC testsuite.
> 
> Maybe it will help your B2000.  However, let's just go one step at a time.

Sadly no luck :-(
minifail still crashes...

Helge
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Subject: Re: threads and fork on machine with VIPT-WB cache
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> > Maybe it will help your B2000.  However, let's just go one step at a time.
> 
> Sadly no luck :-(
> minifail still crashes...

I wonder if it would help to enable the kunmap_atomic support used
for the PA8800/PA8900 for the B2000.  It might be non equivalent aliasing
causes corruption.

Are you using standard 4K pages?

I assume that it's always the thread created by pthread_create that's causing
the segv.  What does the stack region for the thread look like when it drops
core?  Possibly, we have two separate issues.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> I wonder if it would help to enable the kunmap_atomic support used
> for the PA8800/PA8900 for the B2000.  It might be non equivalent alia=
sing
> causes corruption.

I did changed asm/processor.h to include my CPU:
static inline int parisc_requires_coherency(void)
{
#ifdef CONFIG_PA8X00
        return (boot_cpu_data.cpu_type >=3D pcxu);
#endif
}

CONFIG_PA8X00 is defined.

Still crashes.

> Are you using standard 4K pages?

Yes: CONFIG_PARISC_PAGE_SIZE_4KB=3Dy


> I assume that it's always the thread created by pthread_create that's
> causing the segv. =20

Yes, all my tests up to now indicated that too.

> What does the stack region for the thread look
> like when it drops core?  Possibly, we have two separate issues.

do_page_fault() pid=3D3890 command=3D'minifail_dave' type=3D6 address=3D=
0x00000003

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  0004ff0f 10561000 401190d7 c046e3c0
r04-07  4012b5f4 00000007 4012bdf4 00000000
r08-11  4012be64 00000000 c046e3ca 0000001c
r12-15  4012be60 4012c7f8 00000000 c046e448
r16-19  4012c0b0 c046e448 40129270 00000000
r20-23  00000000 00000000 00000000 00000000
r24-27  fffffff5 ffffffd3 4012c0b0 00011dac
r28-31  00000000 4012c0b0 c046e4c0 401190d7
sr00-03  00008dd2 00000000 00000000 00008dd2
sr04-07  00008dd2 00008dd2 00008dd2 00008dd2

IASQ: 00008dd2 00008dd2 IAOQ: 00000003 00000007
 IIR: 43ffff80    ISR: 00008dd2  IOR: 40000bd0
 CPU:        0   CR30: 87d24000 CR31: ffffffff
 ORIG_R28: 00000000
 IAOQ[0]: 00000003
 IAOQ[1]: 00000007
 RP(r2): 401190d7


or=20

do_page_fault() pid=3D28779 command=3D'minifail_dave' type=3D6 address=3D=
0x00000003

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  0004ff0f 10561000 401190d7 bff943c0
r04-07  4012b5f4 00000007 4012bdf4 00000000
r08-11  4012be64 00000000 bff943ca 0000001c
r12-15  4012be60 4012c7f8 00000000 bff94448
r16-19  4012c0b0 bff94448 40129270 00000000
r20-23  00000000 00000000 00000000 00000000
r24-27  fffffff5 ffffffd3 4012c0b0 00011dac
r28-31  00000000 4012c0b0 bff944c0 401190d7
sr00-03  000070bc 00000755 00000000 000070bc
sr04-07  000070bc 000070bc 000070bc 000070bc
IASQ: 000070bc 000070bc IAOQ: 00000003 00000007
 IIR: 43ffff80    ISR: 000070bc  IOR: 40000bd0
 CPU:        1   CR30: 8cfe4000 CR31: ffffffff
 ORIG_R28: 00000000
 IAOQ[0]: 00000003
 IAOQ[1]: 00000007
 RP(r2): 401190d7


or



do_page_fault() pid=3D9898 command=3D'minifail_dave' type=3D15 address=3D=
0x000000fc

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  0006ff0f 0029608d 40114127 00000000
r04-07  4012b5f4 40001768 00000007 00000000
r08-11  f4385cbf 40129270 4012bdf4 40d52348
r12-15  07a1c2e5 0000001f 40d52448 4012b5f4
r16-19  4012bdf4 40d52358 00000000 4012b5f4
r20-23  0001014c 00000000 0f843530 4031bdc4
r24-27  40d52348 00000003 000000f0 00011dac
r28-31  000000f0 40d52448 40d52580 4011410b
sr00-03  0000a53c 00000000 00000000 0000a53c
sr04-07  0000a53c 0000a53c 0000a53c 0000a53c

IASQ: 0000a53c 0000a53c IAOQ: 40113c23 40113c27
 IIR: 0f58101c    ISR: 0000a53c  IOR: 000000fc
 CPU:        0   CR30: 87c78000 CR31: ffffffff
 ORIG_R28: 00000000
 IAOQ[0]: 40113c23
 IAOQ[1]: 40113c27
 RP(r2): 40114127
--=20
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> > I assume that it's always the thread created by pthread_create that's
> > causing the segv.  
> 
> Yes, all my tests up to now indicated that too.

info thread tells you which thread is running.

The stack region for the thread is allocated by the mmap syscall prior
to the clone syscall.  You can see where it is allocated with strace.
On my c3750, it was allocated at 0x40000000, but I have seen it allocated
in other locations on 64-bit systems.

So, in gdb, you can display the bottom bit with 'x/128x 0x40000000'.

If you run minifail under gdb and set a break at the start of
thread_run, you can see what the stack should look like when
thread_run is entered.

The COW break typically causes most of the stack that is dirty to revert to
nearly all zeros.  Since the return pointer, rp, is saved on the stack,
a function return causes the thread to branch to location 0 and
fault.  This is the most common failure.

In the minifail versions that I made with a big loop in thread_run,
it's possible to detect the COW break mid loop and generate a core
dump.   As a result, the application state is consistent.

The dumps below aren't that useful since they don't say much about the
cause of the fault.

> > What does the stack region for the thread look
> > like when it drops core?  Possibly, we have two separate issues.
> 
> do_page_fault() pid=3890 command='minifail_dave' type=6 address=0x00000003
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111 Not tainted
> r00-03  0004ff0f 10561000 401190d7 c046e3c0
> r04-07  4012b5f4 00000007 4012bdf4 00000000
> r08-11  4012be64 00000000 c046e3ca 0000001c
> r12-15  4012be60 4012c7f8 00000000 c046e448
> r16-19  4012c0b0 c046e448 40129270 00000000
> r20-23  00000000 00000000 00000000 00000000
> r24-27  fffffff5 ffffffd3 4012c0b0 00011dac
> r28-31  00000000 4012c0b0 c046e4c0 401190d7

The stack pointer in this one seems to indicate the parent was running.
So, I think this failure has a different cause.  It might be useful to
debug the core dump for a failure similar to this with gdb.

> sr00-03  00008dd2 00000000 00000000 00008dd2
> sr04-07  00008dd2 00008dd2 00008dd2 00008dd2
> 
> IASQ: 00008dd2 00008dd2 IAOQ: 00000003 00000007
>  IIR: 43ffff80    ISR: 00008dd2  IOR: 40000bd0
>  CPU:        0   CR30: 87d24000 CR31: ffffffff
>  ORIG_R28: 00000000
>  IAOQ[0]: 00000003
>  IAOQ[1]: 00000007
>  RP(r2): 401190d7
> 
> 
> or 
> 
> do_page_fault() pid=28779 command='minifail_dave' type=6 address=0x00000003
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111 Not tainted
> r00-03  0004ff0f 10561000 401190d7 bff943c0
> r04-07  4012b5f4 00000007 4012bdf4 00000000
> r08-11  4012be64 00000000 bff943ca 0000001c
> r12-15  4012be60 4012c7f8 00000000 bff94448
> r16-19  4012c0b0 bff94448 40129270 00000000
> r20-23  00000000 00000000 00000000 00000000
> r24-27  fffffff5 ffffffd3 4012c0b0 00011dac
> r28-31  00000000 4012c0b0 bff944c0 401190d7

Stack pointer in this one is wierd.  It probably must have been corrupted
by fault.

> sr00-03  000070bc 00000755 00000000 000070bc
> sr04-07  000070bc 000070bc 000070bc 000070bc
> IASQ: 000070bc 000070bc IAOQ: 00000003 00000007
>  IIR: 43ffff80    ISR: 000070bc  IOR: 40000bd0
>  CPU:        1   CR30: 8cfe4000 CR31: ffffffff
>  ORIG_R28: 00000000
>  IAOQ[0]: 00000003
>  IAOQ[1]: 00000007
>  RP(r2): 401190d7

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Sorry guys, something went awry with spamassassin, and it started
marking a pile of my legitimate mail as spam (something to do with tabs
in From and Date headers...) I'm working through recovering it from my
inbox and list folders, but I don't think I'll have caught up until
after the weekend.

--Kyle
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From - Thu Nov 08 21:05:52 2018
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Subject: Re: threads and fork on machine with VIPT-WB cache
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To: Helge Deller <deller@gmx.de>
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On Tue, 13 Apr 2010, Helge Deller wrote:

> Still crashes.

After thinking about this some more, I believe out updating of pte's
is broken.  We have a lock, pa_dbit_lock, but this is only used in
the dbit traps.  Even there, the implementation is flawed on SMP
machines.

The fundamental issue is a pte can't be updated in one instruction.
The old pte has to be loaded, modified, and then written back to
memory.  It this isn't made atomic with a lock, we drop write protect,
dirty, and accessed bits occassionally.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Wed, Apr 14, 2010 at 9:13 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> Sorry guys, something went awry with spamassassin, and it started
> marking a pile of my legitimate mail as spam (something to do with tabs
> in From and Date headers...) I'm working through recovering it from my
> inbox and list folders, but I don't think I'll have caught up until
> after the weekend.

Thanks!

Cheers,
Carlos.
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Hi Helge,

On Tue, 13 Apr 2010, Helge Deller wrote:

> Still crashes.

Can you you try the patch below?  The change to cacheflush.h is the same
as before.

I have lightly tested the attached change on rp3440 with SMP 2.6.33.2
kernel.  It got through a GCC build at -j8, which is something of a
record.  However, I did see one issue this morning in the ada testsuite:

malloc: ../bash/make_cmd.c:100: assertion botched
malloc: block on free list clobbered
Aborting.../home/dave/gnu/gcc/gcc/gcc/testsuite/ada/acats/run_all.sh: line 67: 29176 Aborted                 (core dumped) ls ${i}.adb >> ${i}.lst 2> /dev/null

I have seen this before.

The change reworks all code that manipulates ptes to use the pa_dbit_lock
to ensure that we don't lose state information during updates.  I also
added code to purge the tlb associated with the pte as it wasn't obvious
to me how for example the write protect bit got set in the tlb.

Someone had clearly tried to fix the dirty bit handling in the past,
but the change was incomplete.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7a73b61..ab87176 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -2,6 +2,7 @@
 #define _PARISC_CACHEFLUSH_H
 
 #include <linux/mm.h>
+#include <linux/uaccess.h>
 
 /* The usual comment is "Caches aren't brain-dead on the <architecture>".
  * Unfortunately, that doesn't apply to PA-RISC. */
@@ -113,11 +114,20 @@ static inline void *kmap(struct page *page)
 
 #define kunmap(page)			kunmap_parisc(page_address(page))
 
-#define kmap_atomic(page, idx)		page_address(page)
+static inline void *kmap_atomic(struct page *page, enum km_type idx)
+{
+	pagefault_disable();
+	return page_address(page);
+}
 
-#define kunmap_atomic(addr, idx)	kunmap_parisc(addr)
+static inline void kunmap_atomic(void *addr, enum km_type idx)
+{
+	kunmap_parisc(addr);
+	pagefault_enable();
+}
 
-#define kmap_atomic_pfn(pfn, idx)	page_address(pfn_to_page(pfn))
+#define kmap_atomic_prot(page, idx, prot)	kmap_atomic(page, idx)
+#define kmap_atomic_pfn(pfn, idx)	kmap_atomic(pfn_to_page(pfn), (idx))
 #define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
 #endif
 
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index a27d2e2..6a221af 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -38,7 +38,8 @@
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+#define set_pte_at(mm,addr,ptep,pteval)				\
+	do { set_pte(ptep,pteval); purge_tlb_page(mm, addr); } while(0) 
 
 #endif /* !__ASSEMBLY__ */
 
@@ -410,6 +411,8 @@ extern void paging_init (void);
 
 #define PG_dcache_dirty         PG_arch_1
 
+extern void flush_cache_page(struct vm_area_struct *, unsigned long, unsigned long);
+extern void purge_tlb_page(struct mm_struct *, unsigned long);
 extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
 
 /* Encode and de-code a swap entry */
@@ -423,22 +426,39 @@ extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
 #define __pte_to_swp_entry(pte)		((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x)		((pte_t) { (x).val })
 
-static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+extern spinlock_t pa_dbit_lock;
+
+static inline void pte_update_lock (void)
 {
 #ifdef CONFIG_SMP
-	if (!pte_young(*ptep))
-		return 0;
-	return test_and_clear_bit(xlate_pabit(_PAGE_ACCESSED_BIT), &pte_val(*ptep));
-#else
-	pte_t pte = *ptep;
-	if (!pte_young(pte))
-		return 0;
-	set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte));
-	return 1;
+	preempt_disable();
+	spin_lock(&pa_dbit_lock);
+#endif
+}
+static inline void pte_update_unlock (void)
+{
+#ifdef CONFIG_SMP
+	spin_unlock(&pa_dbit_lock);
+	preempt_enable();
 #endif
 }
 
-extern spinlock_t pa_dbit_lock;
+static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+{
+	pte_t pte;
+
+	pte_update_lock();
+	pte = *ptep;
+	if (!pte_young(pte)) {
+		pte_update_unlock();
+		return 0;
+	}
+	set_pte(ptep, pte_mkold(pte));
+	pte_update_unlock();
+	purge_tlb_page(vma->vm_mm, addr);
+
+	return 1;
+}
 
 struct mm_struct;
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
@@ -446,29 +466,29 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 	pte_t old_pte;
 	pte_t pte;
 
-	spin_lock(&pa_dbit_lock);
+	pte_update_lock();
 	pte = old_pte = *ptep;
 	pte_val(pte) &= ~_PAGE_PRESENT;
 	pte_val(pte) |= _PAGE_FLUSH;
-	set_pte_at(mm,addr,ptep,pte);
-	spin_unlock(&pa_dbit_lock);
+	set_pte(ptep,pte);
+	pte_update_unlock();
+	purge_tlb_page(mm, addr);
 
 	return old_pte;
 }
 
-static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+static inline void ptep_set_wrprotect(struct vm_area_struct *vma, struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-#ifdef CONFIG_SMP
-	unsigned long new, old;
+	pte_t old_pte;
 
-	do {
-		old = pte_val(*ptep);
-		new = pte_val(pte_wrprotect(__pte (old)));
-	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
-#else
-	pte_t old_pte = *ptep;
-	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
-#endif
+	pte_update_lock();
+	old_pte = *ptep;
+	set_pte(ptep, pte_wrprotect(old_pte));
+	pte_update_unlock();
+
+	if (pte_present(old_pte) && pte_dirty(old_pte))
+		flush_cache_page(vma, addr, pte_pfn(*ptep));
+	purge_tlb_page(mm, addr);
 }
 
 #define pte_same(A,B)	(pte_val(A) == pte_val(B))
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index b6ed34d..cd64e38 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -577,3 +577,17 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 		__flush_cache_page(vma, vmaddr);
 
 }
+
+void purge_tlb_page(struct mm_struct *mm, unsigned long addr)
+{
+        unsigned long flags;
+
+        /* For one page, it's not worth testing the split_tlb variable */
+
+        mb();
+        mtsp(mm->context,1);
+        purge_tlb_start(flags);
+        pdtlb(addr);
+        pitlb(addr);
+        purge_tlb_end(flags);
+}
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3a44f7f..12ebb8a 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -490,19 +464,57 @@
 
 	/* Set the _PAGE_ACCESSED bit of the PTE.  Be clever and
 	 * don't needlessly dirty the cache line if it was already set */
-	.macro		update_ptep	ptep,pte,tmp,tmp1
+	.macro		update_ptep	ptep,pte,spc,tmp,tmp1
+#ifdef CONFIG_SMP
+	bb,<,n		\pte,_PAGE_ACCESSED_BIT,3f
+	cmpib,COND(=),n        0,\spc,2f
+	load32		PA(pa_dbit_lock),\tmp
+1:
+	LDCW		0(\tmp),\tmp1
+	cmpib,COND(=)         0,\tmp1,1b
+	nop
+	LDREG		0(\ptep),\pte
+2:
+	ldi		_PAGE_ACCESSED,\tmp1
+	or		\tmp1,\pte,\pte
+	STREG		\pte,0(\ptep)
+
+	cmpib,COND(=),n        0,\spc,3f
+	ldi             1,\tmp1
+	stw             \tmp1,0(\tmp)
+3:
+#else
 	ldi		_PAGE_ACCESSED,\tmp1
 	or		\tmp1,\pte,\tmp
 	and,COND(<>)	\tmp1,\pte,%r0
 	STREG		\tmp,0(\ptep)
+#endif
 	.endm
 
 	/* Set the dirty bit (and accessed bit).  No need to be
 	 * clever, this is only used from the dirty fault */
-	.macro		update_dirty	ptep,pte,tmp
-	ldi		_PAGE_ACCESSED|_PAGE_DIRTY,\tmp
-	or		\tmp,\pte,\pte
+	.macro		update_dirty	ptep,pte,spc,tmp,tmp1
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n        0,\spc,2f
+	load32		PA(pa_dbit_lock),\tmp
+1:
+	LDCW		0(\tmp),\tmp1
+	cmpib,COND(=)         0,\tmp1,1b
+	nop
+	LDREG		0(\ptep),\pte
+2:
+#endif
+
+	ldi		_PAGE_ACCESSED|_PAGE_DIRTY,\tmp1
+	or		\tmp1,\pte,\pte
 	STREG		\pte,0(\ptep)
+
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n        0,\spc,3f
+	ldi             1,\tmp1
+	stw             \tmp1,0(\tmp)
+3:
+#endif
 	.endm
 
 	/* bitshift difference between a PFN (based on kernel's PAGE_SIZE)
@@ -1214,7 +1224,7 @@ dtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,dtlb_check_alias_20w
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 	
@@ -1238,7 +1248,7 @@ nadtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,nadtlb_check_flush_20w
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
@@ -1272,7 +1282,7 @@ dtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_11
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1321,7 +1331,7 @@ nadtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_11
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1368,7 +1378,7 @@ dtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_20
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
@@ -1394,7 +1404,7 @@ nadtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_20
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
@@ -1508,7 +1518,7 @@ itlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 	
@@ -1526,7 +1536,7 @@ itlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1548,7 +1558,7 @@ itlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
@@ -1570,29 +1580,11 @@ dbit_trap_20w:
 
 	L3_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20w
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20w:
-	LDCW		0(t0),t1
-	cmpib,COND(=)         0,t1,dbit_spin_20w
-	nop
-
-dbit_nolock_20w:
-#endif
-	update_dirty	ptp,pte,t1
+	update_dirty	ptp,pte,spc,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 		
 	idtlbt          pte,prot
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20w
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20w:
-#endif
 
 	rfir
 	nop
@@ -1606,18 +1598,7 @@ dbit_trap_11:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_11
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_11:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_11
-	nop
-
-dbit_nolock_11:
-#endif
-	update_dirty	ptp,pte,t1
+	update_dirty	ptp,pte,spc,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1628,13 +1609,6 @@ dbit_nolock_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp            t1, %sr1     /* Restore sr1 */
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_11
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_11:
-#endif
 
 	rfir
 	nop
@@ -1646,18 +1620,7 @@ dbit_trap_20:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_20
-	nop
-
-dbit_nolock_20:
-#endif
-	update_dirty	ptp,pte,t1
+	update_dirty	ptp,pte,spc,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
@@ -1665,14 +1628,6 @@ dbit_nolock_20:
 	
         idtlbt          pte,prot
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20:
-#endif

From - Thu Nov 08 21:05:52 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: threads and fork on machine with VIPT-WB cache
Date: Tue, 20 Apr 2010 19:59:10 +0200
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	carlos@systemhalted.org
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Hi Dave,

On 04/19/2010 06:26 PM, John David Anglin wrote:
> On Tue, 13 Apr 2010, Helge Deller wrote:
>> Still crashes.
> 
> Can you you try the patch below?  The change to cacheflush.h is the same
> as before.

Thanks for the patch.
I applied it on top of a clean 2.6.33.2 kernel and ran multiple parallel 
minifail programs on my B2000 (2 CPUs, SMP kernel, 32bit kernel).
Sadly minifail still crashed the same way as before.

Should I have applied other patches as well?

Helge

> I have lightly tested the attached change on rp3440 with SMP 2.6.33.2
> kernel.  It got through a GCC build at -j8, which is something of a
> record.  However, I did see one issue this morning in the ada testsuite:
> 
> malloc: ../bash/make_cmd.c:100: assertion botched
> malloc: block on free list clobbered
> Aborting.../home/dave/gnu/gcc/gcc/gcc/testsuite/ada/acats/run_all.sh: line 67: 29176 Aborted                 (core dumped) ls ${i}.adb >> ${i}.lst 2> /dev/null
> 
> I have seen this before.
> 
> The change reworks all code that manipulates ptes to use the pa_dbit_lock
> to ensure that we don't lose state information during updates.  I also
> added code to purge the tlb associated with the pte as it wasn't obvious
> to me how for example the write protect bit got set in the tlb.
> 
> Someone had clearly tried to fix the dirty bit handling in the past,
> but the change was incomplete.

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From - Thu Nov 08 21:05:52 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Helge,

Ok, I think the next thing to try is to try a patch with the tlb
purges and inserts inside the locked region so that the pte and tlb
updates are fully consistent.

I fired up four windows and started minifail on gsyprf11 and got
a core dump in the thread within a couple of minutes.  The parent
was in pthread_join.

Overall stability is definitely better with the change on my rp3440.
I have now got through three GCC builds at -j8.  This never worked before,
so I think we have some progress.

Thanks for testing,
Dave

> Thanks for the patch.
> I applied it on top of a clean 2.6.33.2 kernel and ran multiple parallel 
> minifail programs on my B2000 (2 CPUs, SMP kernel, 32bit kernel).
> Sadly minifail still crashed the same way as before.
> 
> Should I have applied other patches as well?
> 
> Helge
> 
> > I have lightly tested the attached change on rp3440 with SMP 2.6.33.2
> > kernel.  It got through a GCC build at -j8, which is something of a
> > record.  However, I did see one issue this morning in the ada testsuite:
> > 
> > malloc: ../bash/make_cmd.c:100: assertion botched
> > malloc: block on free list clobbered
> > Aborting.../home/dave/gnu/gcc/gcc/gcc/testsuite/ada/acats/run_all.sh: line 67: 29176 Aborted                 (core dumped) ls ${i}.adb >> ${i}.lst 2> /dev/null
> > 
> > I have seen this before.
> > 
> > The change reworks all code that manipulates ptes to use the pa_dbit_lock
> > to ensure that we don't lose state information during updates.  I also
> > added code to purge the tlb associated with the pte as it wasn't obvious
> > to me how for example the write protect bit got set in the tlb.
> > 
> > Someone had clearly tried to fix the dirty bit handling in the past,
> > but the change was incomplete.
> 


-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:52 2018
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From - Thu Nov 08 21:05:53 2018
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From: npiggin@suse.de
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: [patch 10/14] parisc: invoke oom-killer from page fault
Date: Fri, 23 Apr 2010 02:06:23 +1000
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	linux-parisc@vger.kernel.org, Kyle McMartin <kyle@mcmartin.ca>
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As explained in commit 1c0fe6e3bd, we want to call the architecture independent
oom killer when getting an unexplained OOM from handle_mm_fault, rather than
simply killing current.

Cc: linux-parisc@vger.kernel.org
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Nick Piggin <npiggin@suse.de>
---
Index: linux-2.6/arch/parisc/mm/fault.c
===================================================================
--- linux-2.6.orig/arch/parisc/mm/fault.c
+++ linux-2.6/arch/parisc/mm/fault.c
@@ -264,8 +264,7 @@ no_context:
 
   out_of_memory:
 	up_read(&mm->mmap_sem);
-	printk(KERN_CRIT "VM: killing process %s\n", current->comm);
-	if (user_mode(regs))
-		do_group_exit(SIGKILL);
-	goto no_context;
+	if (!user_mode(regs))
+		goto no_context;
+	pagefault_out_of_memory();
 }


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Subject: Re: [patch 10/14] parisc: invoke oom-killer from page fault
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On Fri, 23 Apr 2010, npiggin@suse.de wrote:

> As explained in commit 1c0fe6e3bd, we want to call the architecture independent
> oom killer when getting an unexplained OOM from handle_mm_fault, rather than
> simply killing current.
> 
> Cc: linux-parisc@vger.kernel.org
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: linux-arch@vger.kernel.org
> Signed-off-by: Nick Piggin <npiggin@suse.de>

Acked-by: David Rientjes <rientjes@google.com>
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: C8000 serial port
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Hi team,

I recently bought a C8000 and I just can't get the serial ports to
work. What modules should be used ? The normal 8250 modules don't work.

I'm currently running 2.6.33.2.

Cheers,
  Guy
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On Fri, Apr 23, 2010 at 12:27 PM, Guy Martin <gmsoft@tuxicoman.be> wrote:
>
> Hi team,
>
> I recently bought a C8000 and I just can't get the serial ports to
> work. What modules should be used ? The normal 8250 modules don't work.
>
> I'm currently running 2.6.33.2.

This has been recently discussed on debian-hppa.

See this thread http://lists.debian.org/debian-hppa/2010/03/msg00023.html

HTH

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Hi Thibaut,

Thanks for the pointer but I'm not having an issue booting the box. I
used fbdev for that and I succeeded to install gentoo on it.

However I'd like to have this port working now and I cannot get the
kernel to recognize the serial port at all.

When I load the 8250 module, the only thing I get is this :
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled

Are the serial ports on the C8000 just not supported for now ?
I couldn't find any specifications for that hardware.

  Guy

On Fri, 23 Apr 2010 13:00:19 +0200
Thibaut VARENE <varenet@parisc-linux.org> wrote:

> On Fri, Apr 23, 2010 at 12:27 PM, Guy Martin <gmsoft@tuxicoman.be>
> wrote:
> >
> > Hi team,
> >
> > I recently bought a C8000 and I just can't get the serial ports to
> > work. What modules should be used ? The normal 8250 modules don't
> > work.
> >
> > I'm currently running 2.6.33.2.
> 
> This has been recently discussed on debian-hppa.
> 
> See this thread
> http://lists.debian.org/debian-hppa/2010/03/msg00023.html
> 
> HTH
> 

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On Fri, Apr 23, 2010 at 1:15 PM, Guy Martin <gmsoft@tuxicoman.be> wrote:
>
> Hi Thibaut,
>
> Thanks for the pointer but I'm not having an issue booting the box. I
> used fbdev for that and I succeeded to install gentoo on it.
>
> However I'd like to have this port working now and I cannot get the
> kernel to recognize the serial port at all.
>
> When I load the 8250 module, the only thing I get is this :
> Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
>
> Are the serial ports on the C8000 just not supported for now ?
> I couldn't find any specifications for that hardware.

Oh I see. Dunno about the hardware itself. I've been told it's pretty
new. What does lspci say? Also check lsparisc.

HTH
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On Fri, 23 Apr 2010 14:17:26 +0200
Thibaut VARENE <varenet@parisc-linux.org> wrote:

> Oh I see. Dunno about the hardware itself. I've been told it's pretty
> new. What does lspci say? Also check lsparisc.

lspci doesn't show the serial ports :

terminator ~ # lspci
40:01.0 SCSI storage controller: LSI Logic / Symbios Logic 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 07)
40:01.1 SCSI storage controller: LSI Logic / Symbios Logic 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 07)
40:02.0 PCI bridge: Intel Corporation 21154 PCI-to-PCI Bridge
40:03.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel Host Adapter (rev 0b)
41:04.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
41:05.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
41:06.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
41:07.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
60:01.0 USB Controller: NEC Corporation USB (rev 41)
60:01.1 USB Controller: NEC Corporation USB (rev 41)
60:01.2 USB Controller: NEC Corporation USB 2.0 (rev 02)
60:02.0 IDE interface: Silicon Image, Inc. PCI0680 Ultra ATA-133 Host Controller (rev 02)
60:03.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 02)
80:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]


lsparisc shows two unknown IO devices (17 and 18). Maybe it's those ?

terminator ~ # lsparisc --long --verbose
[0] IO Adapter: Pluto BC McKinley Port
  hversion=0x880 sversion=0x0000c
  dir: /sys/devices/parisc/0
[0:0] Foreign Bus Bridge: Mercury PCI Bridge
  hversion=0x783 sversion=0x0000a
  dir: /sys/devices/parisc/0/0:0
[0:2] Foreign Bus Bridge: Mercury PCI Bridge
  hversion=0x783 sversion=0x0000a
  dir: /sys/devices/parisc/0/0:2
[0:3] Foreign Bus Bridge: Mercury PCI Bridge
  hversion=0x783 sversion=0x0000a
  dir: /sys/devices/parisc/0/0:3
[0:4] Foreign Bus Bridge: Quicksilver AGP Bridge
  hversion=0x784 sversion=0x0000a
  dir: /sys/devices/parisc/0/0:4
[128] Processor: Crestone Peak
  hversion=0x88a sversion=0x00004
  dir: /sys/devices/parisc/128
[129] Processor: Crestone Peak
  hversion=0x88a sversion=0x00004
  dir: /sys/devices/parisc/129
[16] MC: BMC IPMI Mgmt Ctlr
  hversion=0x004 sversion=0x000c0
  dir: /sys/devices/parisc/16
[17] Foreign IO: unknown device
  hversion=0x076 sversion=0x000ad
  dir: /sys/devices/parisc/17
[18] Foreign IO: unknown device
  hversion=0x076 sversion=0x000ad
  dir: /sys/devices/parisc/18
[8] Memory: Memory
  hversion=0x0b6 sversion=0x00009
  dir: /sys/devices/parisc/8


Cheers,
  Guy
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Subject: Longstanding bug in our IRQ code (irqbalance HPMCs parisc SMP machines)
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Pa-ckers,

Just for the records, I'd like to raise some attention to what seems =20
like a pretty old bug in our IRQ code that is apparently still =20
affecting us.

Long story short: while trying to figure out why the recently attached =
=20
10-disk bay was killing the Debian "lafayette" autobuilder during raid =
=20
resync, I noticed that irqbalance was part of the default Debian =20
autobuilder setup.

The nastiness of irqbalance has been discussed before, and I =20
remembered having had issues in the past (5+ years ago) on my parisc =20
machines with that daemon. I couldn't find a pointer to a m-l thread, =20
I don't remember if I discussed that on IRC or elsewhere.

Anyway, turned out disabling irqbalance "fixed" the crash (and by =20
crash I mean HPMC). IIRC, the general idea is that when irqbalance =20
reroutes IRQ under heavy interrupt load, a race occurs by which one =20
interrupt request might end up delivered to the wrong CPU, HPMC'ing =20
the machine.

I have no particular opinion on whether it should be expected that =20
something as stupid as irqbalance could crash a system, but others =20
seem to believe it shouldn't (claiming "it works on *real* [read: x86] =
=20
hardware").

Now, I'm quite convinced that irqbalance could be one of the (major?) =20
cause of instability of the parisc autobuilders. AFAIU, they've =20
decided to disable it on their setup, maybe the situation will improve =
=20
there. Still, irqbalance is only the messenger, and I'm wondering =20
whether that apparent bug in our IRQ code could also be responsible =20
for other issues we're still having.

It's been a very long time since I last touched that code, and tbh I =20
never fully mastered it anyway, but I thought it'd be a good thing to =20
have a trace that this bug is still there, and maybe it will ring a =20
bell to others...

HTH

T-Bone

--=20
Thibaut Var=E8ne
http://www.parisc-linux.org/~varenet/--
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Subject: Re: Longstanding bug in our IRQ code (irqbalance HPMCs parisc SMP
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On Sat, Apr 24, 2010 at 03:29:01PM +0200, Thibaut VAR=C8NE wrote:
> Pa-ckers,
>
> Just for the records, I'd like to raise some attention to what seems =
=20
> like a pretty old bug in our IRQ code that is apparently still affect=
ing=20
> us.
>
> Long story short: while trying to figure out why the recently attache=
d =20
> 10-disk bay was killing the Debian "lafayette" autobuilder during rai=
d =20
> resync, I noticed that irqbalance was part of the default Debian =20
> autobuilder setup.
>
> The nastiness of irqbalance has been discussed before, and I remember=
ed=20
> having had issues in the past (5+ years ago) on my parisc machines wi=
th=20
> that daemon. I couldn't find a pointer to a m-l thread, I don't remem=
ber=20
> if I discussed that on IRC or elsewhere.
>
> Anyway, turned out disabling irqbalance "fixed" the crash (and by cra=
sh I=20
> mean HPMC). IIRC, the general idea is that when irqbalance reroutes I=
RQ=20
> under heavy interrupt load, a race occurs by which one interrupt requ=
est=20
> might end up delivered to the wrong CPU, HPMC'ing the machine.

I'm not seeing how an IRQ message getting delivered to the "wrong" CPU
would cause an HPMC. Sounds more like MSI or other mask is getting buil=
t
wrong and sending the IRQ transaction to an invalid physical address.

> I have no particular opinion on whether it should be expected that =20
> something as stupid as irqbalance could crash a system, but others se=
em=20
> to believe it shouldn't (claiming "it works on *real* [read: x86] =20
> hardware").

It definitely should not.

> Now, I'm quite convinced that irqbalance could be one of the (major?)=
 =20
> cause of instability of the parisc autobuilders. AFAIU, they've decid=
ed=20
> to disable it on their setup, maybe the situation will improve there.=
=20
> Still, irqbalance is only the messenger, and I'm wondering whether th=
at=20
> apparent bug in our IRQ code could also be responsible for other issu=
es=20
> we're still having.

Sounds like it. Though the HPMCs are clearly different than the PTE iss=
ues
that jda/carlos are seeing.

> It's been a very long time since I last touched that code, and tbh I =
=20
> never fully mastered it anyway, but I thought it'd be a good thing to=
 =20
> have a trace that this bug is still there, and maybe it will ring a b=
ell=20
> to others...

No matter what crap irqbalanced is doing, the box shouldn't crash.
I can take a look at the code path and see if something looks broken.

thanks,
grant
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Subject: Re: C8000 serial port
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On Fri, Apr 23, 2010 at 12:27:01PM +0200, Guy Martin wrote:
> 
> Hi team,
> 
> I recently bought a C8000 and I just can't get the serial ports to
> work. What modules should be used ? The normal 8250 modules don't work.

When we did original bring up C8000, we had to use an add-on PCI serial
card to get console with linux. I don't recall where the built-in
serial is attached but thought we had it working at some point. Maybe not.

grant
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Subject: Re: Longstanding bug in our IRQ code (irqbalance HPMCs parisc SMP machines)
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Le 24 avr. 10 =E0 16:36, Grant Grundler a =E9crit :

> On Sat, Apr 24, 2010 at 03:29:01PM +0200, Thibaut VAR=C8NE wrote:
>>

>> Anyway, turned out disabling irqbalance "fixed" the crash (and by =20
>> crash I
>> mean HPMC). IIRC, the general idea is that when irqbalance reroutes =
=20
>> IRQ
>> under heavy interrupt load, a race occurs by which one interrupt =20
>> request
>> might end up delivered to the wrong CPU, HPMC'ing the machine.
>
> I'm not seeing how an IRQ message getting delivered to the "wrong" CP=
U
> would cause an HPMC. Sounds more like MSI or other mask is getting =20
> built
> wrong and sending the IRQ transaction to an invalid physical address.

I'm not sure, it's been a very long time since I last tracked down =20
this bug. Maybe I'm remembering it wrong.
=46WIW, no MSI on this machine (L1000) and PCI card (sym53c896).

>> Now, I'm quite convinced that irqbalance could be one of the (major?=
)
>> cause of instability of the parisc autobuilders. AFAIU, they've =20
>> decided
>> to disable it on their setup, maybe the situation will improve there=
=2E
>> Still, irqbalance is only the messenger, and I'm wondering whether =20
>> that
>> apparent bug in our IRQ code could also be responsible for other =20
>> issues
>> we're still having.
>
> Sounds like it. Though the HPMCs are clearly different than the PTE =20
> issues
> that jda/carlos are seeing.

True, but I remember Debian staff complaining about random unexplained =
=20
hangs, I wouldn't be too surprised if this came into play...

>> It's been a very long time since I last touched that code, and tbh I
>> never fully mastered it anyway, but I thought it'd be a good thing t=
o
>> have a trace that this bug is still there, and maybe it will ring a =
=20
>> bell
>> to others...
>
> No matter what crap irqbalanced is doing, the box shouldn't crash.
> I can take a look at the code path and see if something looks broken.
>
> thanks,


You're welcome ;)

--=20
Thibaut VAR=C8NE
http://www.parisc-linux.org/~varenet/

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On Sat, Apr 24, 2010 at 04:44:27PM +0200, Thibaut VAR=C8NE wrote:
=2E..
> I'm not sure, it's been a very long time since I last tracked down th=
is=20
> bug. Maybe I'm remembering it wrong.
> FWIW, no MSI on this machine (L1000) and PCI card (sym53c896).

Ok - true. We don't support MSI AFAIK.
That means whatever is going wrong, is happening in the IO SAPIC.

>
>>> Now, I'm quite convinced that irqbalance could be one of the (major=
?)
>>> cause of instability of the parisc autobuilders. AFAIU, they've =20
>>> decided
>>> to disable it on their setup, maybe the situation will improve ther=
e.
>>> Still, irqbalance is only the messenger, and I'm wondering whether =
=20
>>> that
>>> apparent bug in our IRQ code could also be responsible for other =20
>>> issues
>>> we're still having.
>>
>> Sounds like it. Though the HPMCs are clearly different than the PTE =
=20
>> issues
>> that jda/carlos are seeing.
>
> True, but I remember Debian staff complaining about random unexplaine=
d =20
> hangs, I wouldn't be too surprised if this came into play...

Yes, especially given the fact the "hangs" generally means
the "machine suddenly stopped responding".

cheers,
grant
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On Sat, Apr 24, 2010 at 08:44:11AM -0600, Grant Grundler wrote:
> On Fri, Apr 23, 2010 at 12:27:01PM +0200, Guy Martin wrote:
> > 
> > Hi team,
> > 
> > I recently bought a C8000 and I just can't get the serial ports to
> > work. What modules should be used ? The normal 8250 modules don't work.
> 
> When we did original bring up C8000, we had to use an add-on PCI serial
> card to get console with linux. I don't recall where the built-in
> serial is attached but thought we had it working at some point. Maybe not.
> 

I don't remember, but I'm pretty sure it works. I'll plug it in an look
next chance I get.
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Longstanding bug in our IRQ code (irqbalance HPMCs parisc SMP machines)
Date: Sat, 24 Apr 2010 11:48:24 -0400 (EDT)
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> > Sounds like it. Though the HPMCs are clearly different than the PTE  
> > issues
> > that jda/carlos are seeing.
> 
> True, but I remember Debian staff complaining about random unexplained  
> hangs, I wouldn't be too surprised if this came into play...

I have been looking at the PTE/TLB code for the last couple of weeks.
I now believe that the majority of the random hangs, segvs at program
startup are related to problems with the PTE/TLB code.

1) minifail bug

As previously identified, there is a cache flush problem in ptep_set_wrprotect.
I did a kernel build with a "WARN_ON(pte_present(old_pte) && pte_dirty(old_pte)"in ptep_set_wrprotect an it triggered immediately.  So, we have to deal with
a dirty cache in ptep_set_wrprotect.  As far as I can tell, this problem
is fixed by putting the flush inside preempt_disable()/preempt_enable().

Helge is triggering other PTE issues when he runs multiple copies of
minifail.  The minifail program fails on a UP system.  With the above fix,
it doesn't fail.

2) SMP page table entry corruption

The needs to be a lock around pte updates to ensure that pte modifications
are consistent on SMP machines.  I have done this and it helps stability
on rp3440.

3) SMP PTE/TLB consistency

We are not purging existing translations when an update to a PTE value
is done such as in ptep_set_wrprotect.  As a result, the parent of a fork
doesn't immediately trigger a COW break on a page when a write occurs
if there is an existing translation.

Adding a TLB purge helps, but even this may be lost.  For example,

page fault (cpu1)
  -> load old pte (cpu1)
    -> store new pte (cpu2)
      -> global tlb purge (cpu2)
        -> insert old pte into tlb (cpu1)

It may be possible to use locking to ensure that purges aren't lost.  However,
this is a bit tricky...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: PTE/TLB issues (was Re: Longstanding bug in our IRQ code (irqbalance HPMCs parisc SMP machines))
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Le 24 avr. 10 =E0 17:48, John David Anglin a =E9crit :

>>> Sounds like it. Though the HPMCs are clearly different than the PTE
>>> issues
>>> that jda/carlos are seeing.
>>
>> True, but I remember Debian staff complaining about random =20
>> unexplained
>> hangs, I wouldn't be too surprised if this came into play...
>
> I have been looking at the PTE/TLB code for the last couple of weeks.
> I now believe that the majority of the random hangs, segvs at program
> startup are related to problems with the PTE/TLB code.


[snip]

Thanks for this detailed explanation. I've quoted your remarks to this =
=20
wiki page (as a reference point):
http://wiki.parisc-linux.org/KnownIssues#head-fc724f5d1b9a93f4b531a05fc=
1aab3314dde8c87

People, feel free to make sure everything there is as accurate as it =20
can be, btw... Also taking the opportunity to point at the "SMP perf / =
=20
cache issue" paragraph there... Might be related.

I've also added a link to the irqbalance bug on that same page.

=46WIW, the hangs I was referring to are those that kill the machine =20
without any output. Hopefully PTE/TLB issues are a bit more verbose? ;-=
)

HTH

--=20
Thibaut VAR=C8NE
http://www.parisc-linux.org/~varenet/

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On Thu, Apr 22, 2010 at 01:56:26PM -0700, David Rientjes wrote:
> On Fri, 23 Apr 2010, npiggin@suse.de wrote:
> 
> > As explained in commit 1c0fe6e3bd, we want to call the architecture independent
> > oom killer when getting an unexplained OOM from handle_mm_fault, rather than
> > simply killing current.
> > 
> > Cc: linux-parisc@vger.kernel.org
> > Cc: Kyle McMartin <kyle@mcmartin.ca>
> > Cc: linux-arch@vger.kernel.org
> > Signed-off-by: Nick Piggin <npiggin@suse.de>
> 
> Acked-by: David Rientjes <rientjes@google.com>

Thanks, applied.
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T-bone is keeping a web page with all the failing tests on now:

http://wiki.parisc-linux.org/TestCases

The patch below is what I've found fixes the minifail6 case, but it
doesn't seem to fully fix the minifail one (although the frequency goes
down).

It's the essential patch we need to fix up our kmapping.  Right at the
moment kmap of a page with a dirty cache line in userspace sees stale
data and kunmap of a page the kernel has modified will see likewise.

James

---

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 4772777..d717e75 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -116,21 +116,22 @@ void mark_rodata_ro(void);
 #define ARCH_HAS_KMAP
 
 void kunmap_parisc(void *addr);
+void *kmap_parisc(struct page *page);
 
 static inline void *kmap(struct page *page)
 {
 	might_sleep();
-	return page_address(page);
+	return kmap_parisc(page);
 }
 
 #define kunmap(page)			kunmap_parisc(page_address(page))
 
-#define kmap_atomic(page, idx)		page_address(page)
+#define kmap_atomic(page, idx)		kmap_parisc(page)
 
 #define kunmap_atomic(addr, idx)	kunmap_parisc(addr)
 
-#define kmap_atomic_pfn(pfn, idx)	page_address(pfn_to_page(pfn))
-#define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
+#define kmap_atomic_pfn(pfn, idx)	kmap_parisc(pfn_to_page(pfn))
+#define kmap_atomic_to_page(ptr)	virt_to_page(kmap_parisc(virt_to_page(ptr)))
 #endif
 
 #endif /* _PARISC_CACHEFLUSH_H */
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index d054f3d..b971ed3 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -336,9 +336,9 @@ __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
 	}
 }
 
-void flush_dcache_page(struct page *page)
+static void flush_user_dcache_page_internal(struct address_space *mapping,
+					    struct page *page)
 {
-	struct address_space *mapping = page_mapping(page);
 	struct vm_area_struct *mpnt;
 	struct prio_tree_iter iter;
 	unsigned long offset;
@@ -346,14 +346,6 @@ void flush_dcache_page(struct page *page)
 	pgoff_t pgoff;
 	unsigned long pfn = page_to_pfn(page);
 
-
-	if (mapping && !mapping_mapped(mapping)) {
-		set_bit(PG_dcache_dirty, &page->flags);
-		return;
-	}
-
-	flush_kernel_dcache_page(page);
-
 	if (!mapping)
 		return;
 
@@ -387,6 +379,19 @@ void flush_dcache_page(struct page *page)
 	}
 	flush_dcache_mmap_unlock(mapping);
 }
+
+void flush_dcache_page(struct page *page)
+{
+	struct address_space *mapping = page_mapping(page);
+
+	if (mapping && !mapping_mapped(mapping)) {
+		set_bit(PG_dcache_dirty, &page->flags);
+		return;
+	}
+
+	flush_kernel_dcache_page(page);
+	flush_user_dcache_page_internal(mapping, page);
+}
 EXPORT_SYMBOL(flush_dcache_page);
 
 /* Defined in arch/parisc/kernel/pacache.S */
@@ -475,16 +480,6 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 }
 EXPORT_SYMBOL(copy_user_page);
 
-#ifdef CONFIG_PA8X00
-
-void kunmap_parisc(void *addr)
-{
-	if (parisc_requires_coherency())
-		flush_kernel_dcache_page_addr(addr);
-}
-EXPORT_SYMBOL(kunmap_parisc);
-#endif
-
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {
@@ -577,3 +572,25 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 		__flush_cache_page(vma, vmaddr);
 
 }
+
+void *kmap_parisc(struct page *page)
+{
+	/* this is a killer.  There's no easy way to test quickly if
+	 * this page is dirty in any userspace.  Additionally, for
+	 * kernel alterations of the page, we'd need it invalidated
+	 * here anyway, so currently flush (and invalidate)
+	 * universally */
+	flush_user_dcache_page_internal(page_mapping(page), page);
+	return page_address(page);
+}
+EXPORT_SYMBOL(kmap_parisc);
+
+void kunmap_parisc(void *addr)
+{
+	/* flush and invalidate the kernel mapping.  We need the
+	 * invalidate so we don't have stale data at this cache
+	 * location the next time the page is mapped */
+	flush_kernel_dcache_page_addr(addr);
+}
+EXPORT_SYMBOL(kunmap_parisc);
+



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From - Thu Nov 08 21:05:54 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: Patch for segfaults in minifail tests
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On Fri, 30 Apr 2010, James Bottomley wrote:

> It's the essential patch we need to fix up our kmapping.  Right at the
> moment kmap of a page with a dirty cache line in userspace sees stale
> data and kunmap of a page the kernel has modified will see likewise.

Did you try using the version of copy_user_page_asm that uses
equivalent aliasing?   There is an issue with needing cache flushing
noted in pgtable.h, but if this works it may be less of a hammer.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Fri, 2010-04-30 at 17:11 -0400, John David Anglin wrote:
> On Fri, 30 Apr 2010, James Bottomley wrote:
> 
> > It's the essential patch we need to fix up our kmapping.  Right at the
> > moment kmap of a page with a dirty cache line in userspace sees stale
> > data and kunmap of a page the kernel has modified will see likewise.
> 
> Did you try using the version of copy_user_page_asm that uses
> equivalent aliasing?   There is an issue with needing cache flushing
> noted in pgtable.h, but if this works it may be less of a hammer.

Not yet.  I want to isolate the root cause first before I start adding
optimisations.  Although the optimisation is a fairly safe one, since
it's used by a lot of other architectures.

James


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From: Thibaut VARENE <T-Bone@parisc-linux.org>
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On Fri, Apr 30, 2010 at 8:21 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> T-bone is keeping a web page with all the failing tests on now:
>
> http://wiki.parisc-linux.org/TestCases

About this: I've had to blaze through hundreds of emails to get this
data together. TBH it's been quite hard to figure which testcase
related to which bug and which patch. I'm not absolutely sure that my
segmentation is right (all the futex/fork/vfork/etc threads seem to
deal with the same kind of problems). I'm also not entirely certain
that I haven't listed bugs that are now fixed. I may also have
overlooked mails containing non-obvious testcases.

What I'm trying to say is that this page is useless without your
feedback. I'd especially need people to, short of updating it
themselves (^-^), tell me what can be added/removed/improved. Given a
Message-ID, I can do the dirty work ;-)

Comments are welcome, I hope this will be anyhow helpful.

T-Bone

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On Mon, Apr 19, 2010 at 6:26 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> Hi Helge,
>
> On Tue, 13 Apr 2010, Helge Deller wrote:
>
>> Still crashes.
>
> Can you you try the patch below? =C2=A0The change to cacheflush.h is =
the same
> as before.

=46or the records, while setting up the wiki's TestCases page, it
noticed that the initial large patch that you sent (see
https://patchwork.kernel.org/patch/91525/ ) contained bits that
weren't part of the split chunks you sent afterwards.

This patch (pte.d.2) seems to update some of those chunks and also
contains bits that weren't either part of them.

That being said so that we do not loose track of potentially useful
code. Though maybe kyle has all of this sorted out already and I'm
just unable to figure it out myself ;-)

HTH

T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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> On Mon, Apr 19, 2010 at 6:26 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> > Hi Helge,
> >
> > On Tue, 13 Apr 2010, Helge Deller wrote:
> >
> >> Still crashes.
> >
> > Can you you try the patch below? =C2=A0The change to cacheflush.h is the =
> same
> > as before.
> 
> For the records, while setting up the wiki's TestCases page, it
> noticed that the initial large patch that you sent (see
> https://patchwork.kernel.org/patch/91525/ ) contained bits that
> weren't part of the split chunks you sent afterwards.
> 
> This patch (pte.d.2) seems to update some of those chunks and also
> contains bits that weren't either part of them.

The split chunks were mainly cleanups.  As far as I know, they are
obvious and provide no significant change in functionality.  I didn't
intentionally change any of the split hunks in patch4 (pte.d.2) although
this patch does touch some of the same files.  Possibly, the LWS fixes
should be split into two (obvious and UP locking).

Both the original patch and pte.d.2 were experimental.  Since I sent it,
I continued to experiment and reached a change that appears to fix the
minifail bug in a somewhat different manner than proposed by James.  However,
I'm still seeing some issues that appear to be PTE related (segmentation
faults in sh mainly).

At this point, I don't know why I still see problems.  I have one idea left
to try.  I also would like to implement copy_user_page with equivalent
aliasing.  My first attempt didn't work.  I just enabled code in pacache.S.

I have more or less reached the conclusion that our PTE/TLB management
is quite broken on SMP.  I tried James' patch but had trouble with segmention
faults on my rp3440 and a GCC build died early in stage 1 (make -j8
bootstrap).  I need to try it with a clean build.

I may be wrong but I think a flush in kmap(_atomic) won't work on SMP
because another user may just redirty the page when it is shared.

> That being said so that we do not loose track of potentially useful
> code. Though maybe kyle has all of this sorted out already and I'm
> just unable to figure it out myself ;-)

I don't think there's a clear path.  I've come to realize that I don't
understand what's required of the higher level code.  The documentation
doesn't help much.  Looking at other archs provides some clues.  I've
looked at ia64 a bit (see for example TLB shootout support and retry in
TLB miss handler).

Regarding the wiki, it's a useful summary.  However, #561203 (minifail
bug) is not a "Futex wait failure".  We may have futex bugs, but I'm not
aware of a testcase.  The minifail bug is a "Threads and fork" problem
arising from cache corruption.  Mainly, copy_user_page is broken when
copying memory shared by more than one process.  There are also issues
in PTE/TLB management on SMP systems.  Probably, the vfork/execve bug
is caused by the same problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Patch for segfaults in minifail tests
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This is a multi-part message in MIME format.
--------------010404060101030008000604
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit

On 04/30/2010 08:21 PM, James Bottomley wrote:
> T-bone is keeping a web page with all the failing tests on now:
> 
> http://wiki.parisc-linux.org/TestCases
> 
> The patch below is what I've found fixes the minifail6 case, but it
> doesn't seem to fully fix the minifail one (although the frequency goes
> down).
> 
> It's the essential patch we need to fix up our kmapping.  Right at the
> moment kmap of a page with a dirty cache line in userspace sees stale
> data and kunmap of a page the kernel has modified will see likewise.

Hi James,

I tried your patch on top of a 2.6.33.2 kernel (SMP, 32bit, PA8500 (PCX-W) CPU).
I still do see all the page faults as before. They even seem to trigger 
faster than with a few of Dave's patches.

I usually run this command
	i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail_dave; done;
in a few screen sessions in parallel.

Thibeaut: I've attached the testcase (I called it minifail_dave, since it
was changed by Dave). Maybe you can attach it to your website if it's not
yet there...?

Helge
-----------------

do_page_fault() pid=4325 command='minifail_dave' type=6 address=0x00000003

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  0004ff0f 1055e000 403390d7 c03613c0
r04-07  4034b5f4 00000007 4034bdf4 00000000
r08-11  4034be64 00000000 c03613ca 0000001c
r12-15  4034be60 4034c7f8 00000000 c0361448
r16-19  4034c0b0 c0361448 40349270 00000000
r20-23  00000000 00000000 00000000 00000000
r24-27  fffffff5 ffffffd3 4034c0b0 00011dac
r28-31  00000000 4034c0b0 c03614c0 403390d7
sr00-03  00001111 0000111c 00000000 00001111
sr04-07  00001111 00001111 00001111 00001111

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  8f828e808edb4080 000000001011be24 107495b01078db64 0000000000000000
fr08-11  8f844240107b8000 0000000800000000 8edb40808f828e80 8f8422b81056115c
fr12-15  107495b010803280 1056115c1011be24 00000002ffffff9c fffff00000000000
fr16-19  8f84428010802840 8f828edc8f828ec0 8f828e8000000000 8f81bea88f844208
fr20-23  8f8442088f844210 8f844208101dc9f4 0000000000000090 00001c9800000000
fr24-27  3ff0000000000000 3fe0000000000000 412e848000000000 00000000001e8480
fr28-31  000004000000007a 000000101016bee8 0000000f106ff040 106e3b3810802894

IASQ: 00001111 00001111 IAOQ: 00000003 00000007
 IIR: 43ffff80    ISR: 00001111  IOR: 40000bd0
 CPU:        0   CR30: 8d9f8000 CR31: ffffffff
 ORIG_R28: 00000000
 IAOQ[0]: 00000003
 IAOQ[1]: 00000007
 RP(r2): 403390d7
pagealloc: memory corruption
88140040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
88140050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
88140060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
88140070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
88140080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
88140090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
881400a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
881400b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
Backtrace:
 [<1011ecb0>] show_stack+0x18/0x28
 [<10117b94>] dump_stack+0x1c/0x2c
 [<101c6270>] kernel_map_pages+0x2a0/0x2b8
 [<1019eb24>] get_page_from_freelist+0x3e4/0x5f4
 [<1019ee68>] __alloc_pages_nodemask+0x134/0x610
 [<101b1d6c>] do_wp_page+0x260/0xa00
 [<101b3ac0>] handle_mm_fault+0x4cc/0x784
 [<1011d844>] do_page_fault+0x1f8/0x2fc
 [<1011f4ec>] handle_interruption+0xec/0x730
 [<10103078>] intr_check_sig+0x0/0x34


do_page_fault() pid=7143 command='minifail_dave' type=6 address=0x00000003

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  0004ff0f 1055e000 403390d7 bffaa3c0
r04-07  4034b5f4 00000007 4034bdf4 00000000
r08-11  4034be64 00000000 bffaa3ca 0000001c
r12-15  4034be60 4034c7f8 00000000 bffaa448
r16-19  4034c0b0 bffaa448 40349270 00000000
r20-23  00000000 00000000 00000000 00000000
r24-27  fffffff5 ffffffd3 4034c0b0 00011dac
r28-31  00000000 4034c0b0 bffaa4c0 403390d7
sr00-03  00001c1b 00000000 00000000 00001c1b
sr04-07  00001c1b 00001c1b 00001c1b 00001c1b

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  8f828e808edb4080 000000001011be24 107495b01078db64 0000000000000000
fr08-11  8f844240107b8000 0000000800000000 8edb40808f828e80 8f8422b81056115c
fr12-15  107495b010803280 1056115c1011be24 00000002ffffff9c fffff00000000000
fr16-19  8f84428010802840 8f828edc8f828ec0 8f828e8000000000 8f81bea88f844208
fr20-23  8f8442088f844210 8f844208101dc9f4 0000000000000090 00001c9800000000
fr24-27  3ff0000000000000 3fe0000000000000 412e848000000000 00000000001e8480
fr28-31  000004000000007a 000000101016bee8 0000000f106ff040 106e3b3810802894

IASQ: 00001c1b 00001c1b IAOQ: 00000003 00000007
 IIR: 43ffff80    ISR: 00001c1b  IOR: 40000bd0
 CPU:        1   CR30: 86860000 CR31: ffffffff
 ORIG_R28: 00000000
 IAOQ[0]: 00000003
 IAOQ[1]: 00000007
 RP(r2): 403390d7

do_page_fault() pid=9873 command='minifail_dave' type=6 address=0x00000003

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  0004ff0f 1055e000 403390d7 c06e53c0
r04-07  4034b5f4 00000007 4034bdf4 00000000
r08-11  4034be64 00000000 c06e53ca 0000001c
r12-15  4034be60 4034c7f8 00000000 c06e5448
r16-19  4034c0b0 c06e5448 40349270 00000000
r20-23  00000000 00000000 00000000 00000000
r24-27  fffffff5 ffffffd3 4034c0b0 00011dac
r28-31  00000000 4034c0b0 c06e54c0 403390d7
sr00-03  000026c7 00000000 00000000 000026c7
sr04-07  000026c7 000026c7 000026c7 000026c7

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  8f828e808edb4080 000000001011be24 107495b01078db64 0000000000000000
fr08-11  8f844240107b8000 0000000800000000 8edb40808f828e80 8f8422b81056115c
fr12-15  107495b010803280 1056115c1011be24 00000002ffffff9c fffff00000000000
fr16-19  8f84428010802840 8f828edc8f828ec0 8f828e8000000000 8f81bea88f844208
fr20-23  8f8442088f844210 8f844208101dc9f4 0000000000000090 00001c9800000000
fr24-27  3ff0000000000000 3fe0000000000000 412e848000000000 00000000001e8480
fr28-31  000004000000007a 000000101016bee8 0000000f106ff040 106e3b3810802894

IASQ: 000026c7 000026c7 IAOQ: 00000003 00000007
 IIR: 43ffff80    ISR: 000026c7  IOR: 40000bd0
 CPU:        0   CR30: 8dadc000 CR31: ffffffff
 ORIG_R28: 00000000
 IAOQ[0]: 00000003
 IAOQ[1]: 00000007
 RP(r2): 403390d7


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--------------010404060101030008000604--
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From - Thu Nov 08 21:05:54 2018
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Subject: Re: Patch for segfaults in minifail tests
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To: deller@gmx.de (Helge Deller)
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Hi Helge,

> I tried your patch on top of a 2.6.33.2 kernel (SMP, 32bit, PA8500 (PCX-W) CPU).
> I still do see all the page faults as before. They even seem to trigger 
> faster than with a few of Dave's patches.
> 
> I usually run this command
> 	i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail_dave; done;
> in a few screen sessions in parallel.

The reason running multiple screens in parallel exposes further problems
is the implementation of ptep_set_wrprotect is broken.  It simply sets the
write protect bit in the pte and doesn't purge the existing translation.
So, the parent continues to merrily write to the write protected page until
the TLB entry is purged and reloaded.  More processes make it more likely the
entry will be replaced and trigger a COW break.

This is why my versions of the minifail test which monitor the stack region
used by the thread don't cause a COW break immediately after the fork.  When
compiled at -O0, the loop index is constantly being stored to the stack.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: Patch for segfaults in minifail tests
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On Sat, 2010-05-01 at 19:13 -0400, John David Anglin wrote:
> Hi Helge,
> 
> > I tried your patch on top of a 2.6.33.2 kernel (SMP, 32bit, PA8500 (PCX-W) CPU).
> > I still do see all the page faults as before. They even seem to trigger 
> > faster than with a few of Dave's patches.
> > 
> > I usually run this command
> > 	i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail_dave; done;
> > in a few screen sessions in parallel.
> 
> The reason running multiple screens in parallel exposes further problems
> is the implementation of ptep_set_wrprotect is broken.  It simply sets the
> write protect bit in the pte and doesn't purge the existing translation.
> So, the parent continues to merrily write to the write protected page until
> the TLB entry is purged and reloaded.  More processes make it more likely the
> entry will be replaced and trigger a COW break.
> 
> This is why my versions of the minifail test which monitor the stack region
> used by the thread don't cause a COW break immediately after the fork.  When
> compiled at -O0, the loop index is constantly being stored to the stack.

Actually, no, this explanation isn't correct.

The way linux works.  You can see roughly how this works in
copy_page_range() where we prepare the COW.  If it's going to be a COW
range, we call mmu notifiers before and after the pte settings.  The
after mmu notifier is supposed to flush the TLB.   Linux always does
memory operations in the form

prepare();
do_something_with_the_ptes()
activate()

It's only after the activate() through the mmu notifiers that we're
supposed to be consistent.

Now the outstanding question is whether we're correctly hooked into the
post mmu update notifier ... but I suspect we are (sorry, heading to a
plane for boston, will try to check this next week).

James


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Subject: Re: Patch for segfaults in minifail tests
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Le 2 mai 10 =E0 00:25, Helge Deller a =E9crit :

> Thibeaut: I've attached the testcase (I called it minifail_dave, =20
> since it
> was changed by Dave). Maybe you can attach it to your website if =20
> it's not
> yet there...?


Err, please, you're not making this easy for me.

I've put on the website all the testcases I found in the emails, so if =
=20
dave already posted it, chances are it's already there.

Could you please check the page and see if the testcase you're using =20
is there? I tried to keep it simple by:
a) keeping the original name (whenever available)
b) linking to the corresponding message

If I'm the only one actually using that webpage, it's totally =20
pointless...

HTH

--=20
Thibaut VAR=C8NE
http://www.parisc-linux.org/~varenet/

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Subject: Re: Patch for segfaults in minifail tests
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On 05/02/2010 01:40 AM, Thibaut VAR=C8NE wrote:
> Le 2 mai 10 =E0 00:25, Helge Deller a =E9crit :
>=20
>> Thibeaut: I've attached the testcase (I called it minifail_dave, sin=
ce it
>> was changed by Dave). Maybe you can attach it to your website if it'=
s not
>> yet there...?
>=20
>=20
> Err, please, you're not making this easy for me.
>=20
> I've put on the website all the testcases I found in the emails, so i=
f
> dave already posted it, chances are it's already there.
>=20
> Could you please check the page and see if the testcase you're using =
is
> there? I tried to keep it simple by:
> a) keeping the original name (whenever available)
> b) linking to the corresponding message

Sorry Thibaut,

Thanks so much for putting all this stuff into the Wiki!
It's very useful to everybody, and of course I did already yesterday lo=
oked=20
if this minifail test program was in the list. I didn't found it.

So, it would be great if you could add it.

In principle you could replace the minifail3 testcase by this one.
And, I think this should be the major testcase which should work in the
end, since it's the one which doesn't has any tweaks. It should just
run without segfaults out of the box if we fixed the problem.

> If I'm the only one actually using that webpage, it's totally pointle=
ss...

You are not. I have looked at it already quite much!

Helge
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Le 1 mai 10 =E0 22:17, John David Anglin a =E9crit :
>
> Regarding the wiki, it's a useful summary.  However, #561203 (minifai=
l
> bug) is not a "Futex wait failure".  We may have futex bugs, but I'm =
=20
> not
> aware of a testcase.  The minifail bug is a "Threads and fork" proble=
m
> arising from cache corruption.  Mainly, copy_user_page is broken when
> copying memory shared by more than one process.  There are also issue=
s
> in PTE/TLB management on SMP systems.  Probably, the vfork/execve bug
> is caused by the same problem.


Many thanks for the feedback. The reason why I initially put the =20
minifail bug under "Futex wait failure" was because I found it =20
discussed under such a thread ;-)

I've merged this section under "Threads & fork", and have quoted your =20
summary at the top of the section.

HTH

T-Bone

--=20
Thibaut VAR=C8NE
http://www.parisc-linux.org/~varenet/

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Le 2 mai 10 =E0 10:19, Helge Deller a =E9crit :

> Sorry Thibaut,
>
> Thanks so much for putting all this stuff into the Wiki!
> It's very useful to everybody, and of course I did already yesterday =
=20
> looked
> if this minifail test program was in the list. I didn't found it.

Ah ok, sorry I didn't understand that.

> So, it would be great if you could add it.

Done.

> In principle you could replace the minifail3 testcase by this one.

I'll keep it for archiving purpose, it's just a line on the page after =
=20
all ;)

> And, I think this should be the major testcase which should work in =20
> the
> end, since it's the one which doesn't has any tweaks. It should just
> run without segfaults out of the box if we fixed the problem.


I've marked it as "Final" until proved wrong.

HTH

--=20
Thibaut VAR=C8NE
http://www.parisc-linux.org/~varenet/

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On 12/14/2009 11:08 PM, Thibaut Paumard wrote:
> Le 14 d=E9c. 09 =E0 16:06, Carlos O'Donell a =E9crit :
> Attached is a rather small testcase.
>=20
> Compile with
>   gcc -lm -o fputest fputest.c
>=20
> Run with
>   ./fputest
> or with any succession of 'i's and 'f's, e.g.
>   ./fputest iffifi
>=20
> The expected behaviour (checked on i386) is that for each f or i lett=
er,
> a line is output, for instance
>      $ ./fputest iffi
>      Triggering integer SIGFPE: 1/0=3D(SIGFPE trapped)0
>      Triggering floating SIGFPE: 1./0.=3D(SIGFPE trapped)0.000000
>      Triggering floating SIGFPE: 1./0.=3D(SIGFPE trapped)0.000000
>      Triggering integer SIGFPE: 1/0=3D(SIGFPE trapped)0
>      $ echo $?
>      0
>=20
> All the SIGFPEs should be trapped and the program should exit gracefu=
lly
> (check $?).
>=20
> Under HPPA, the integer SIGFPEs are trapped but the floating-point
> SIGFPEs are not:
>      $ ./fputest iffi
>      Triggering integer SIGFPE: 1/0=3D(SIGFPE trapped)0
>      Triggering floating SIGFPE: 1./0.=3DFloating point exception
>      $ echo $?
>      136


The problem in this test case is, that a signal handler is called
when SIGFPE happens. Then glibc uses a trampoline handler to call the
signal handler, in which it touches the floating point registers again
and finally gets another SIGFPE. In this case, the program just ends
(since the original signal handler already trapped).
Involved glibc function is _dl_runtime_resolve() at=20
ports/sysdeps/hppa/dl-trampoline.S:73

The solution is simple.
Just clear the exception register in arch/parisc/math-emu/decode_exc.c
in the linux kernel before sending the SIGFPE signal to user space.

Patch attached.

While at this, I think we need to clear the exception registers for
the other cases like OVERFLOWEXCEPTION and INEXACTEXCEPTION at least
as well (see arch/parisc/math-emu/decode_exc.c, line 286 ff).

Helge

Patch:
-------------------------
[PATCH] parisc: clear floating point exception flag on SIGFPE signal

Clear the floating point exception flag before returning to
user space. This is needed, else the libc trampoline handler
may hit the same SIGFPE again while building up a trampoline
to a signal handler.

=46ixes debian bug #559406.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/math-emu/decode_exc.c b/arch/parisc/math-emu/d=
ecode_exc.c
index 3ca1c61..27a7492 100644
--- a/arch/parisc/math-emu/decode_exc.c
+++ b/arch/parisc/math-emu/decode_exc.c
@@ -342,6 +342,7 @@ decode_fpu(unsigned int Fpu_register[], unsigned in=
t trap_counts[])
 		return SIGNALCODE(SIGFPE, FPE_FLTINV);
 	  case DIVISIONBYZEROEXCEPTION:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
+		Clear_excp_register(exception_index);
 	  	return SIGNALCODE(SIGFPE, FPE_FLTDIV);
 	  case INEXACTEXCEPTION:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
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Subject: Re: Patch for segfaults in minifail tests
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On Sat, 01 May 2010, James Bottomley wrote:

> On Sat, 2010-05-01 at 19:13 -0400, John David Anglin wrote:
> > Hi Helge,
> > 
> > > I tried your patch on top of a 2.6.33.2 kernel (SMP, 32bit, PA8500 (PCX-W) CPU).
> > > I still do see all the page faults as before. They even seem to trigger 
> > > faster than with a few of Dave's patches.
> > > 
> > > I usually run this command
> > > 	i=0; while true; do i=$(($i+1)); echo Run $i; ./minifail_dave; done;
> > > in a few screen sessions in parallel.
> > 
> > The reason running multiple screens in parallel exposes further problems
> > is the implementation of ptep_set_wrprotect is broken.  It simply sets the
> > write protect bit in the pte and doesn't purge the existing translation.
> > So, the parent continues to merrily write to the write protected page until
> > the TLB entry is purged and reloaded.  More processes make it more likely the
> > entry will be replaced and trigger a COW break.
> > 
> > This is why my versions of the minifail test which monitor the stack region
> > used by the thread don't cause a COW break immediately after the fork.  When
> > compiled at -O0, the loop index is constantly being stored to the stack.
> 
> Actually, no, this explanation isn't correct.

I stand by the observation that COW breaks do not happen when expected,
or consistently with the minifail testcase.

> The way linux works.  You can see roughly how this works in
> copy_page_range() where we prepare the COW.  If it's going to be a COW
> range, we call mmu notifiers before and after the pte settings.  The
> after mmu notifier is supposed to flush the TLB.   Linux always does
> memory operations in the form
> 
> prepare();
> do_something_with_the_ptes()
> activate()

That is certainly consistent with the existing code in pgtable.h.
The ptes can only be handled in this manner if there is a different
page table for each process.  I couldn't find the notifier hooks...
include/asm-generic/pgtable.h contains flush implementations which
do the TLB flush for several pte operations.  However, there is no
generic implementation of ptep_set_wrprotect as far as I can tell.

In the minifail testcase, we have three processes: "parent", "thread"
and "child".  Parent and thread have the same space id.  Child has
a different space id and therefore a different global virtual address
range.  All processes reference the same physical memory.

The ptes for parent and thread have to be consistent since the idtlbt
instruction will remove one or more entries whose virtual address ranges
overlap the virtual address range of the new translation.  Parisc
cpus have a relatively small translation lookaside buffer; so when
many processes are running, it is easy to lose an entry.  If we lose
entries, a page could randomly alternate from being write protected
to not write protected.

As far as I can tell, copy_one_pte only write protects the mms for
the parent (src_pte) and the child (pte).  The pte of thread is not
write protected.  As far as I can tell, we don't purge TLBs on
context switches, so it would appear that we have to have a consistent
set of ptes for all processes with the same space id.

Originally, I had assumed that parent and thread had the same page
directory.  In that case, one has to handle race conditions in setting
and updating ptes.  My rp3440 is more stable when I try to force
insertion of the write protect bit.  However, there are still some faults
that look like cache corruption when I push the system load up.

> It's only after the activate() through the mmu notifiers that we're
> supposed to be consistent.
> 
> Now the outstanding question is whether we're correctly hooked into the
> post mmu update notifier ... but I suspect we are (sorry, heading to a
> plane for boston, will try to check this next week).

Hope you spot something.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:55 2018
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From: wzt.wzt@gmail.com
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Subject: [PATCH] Parisc: Check kmalloc return value before use the buffer in ccio-dma.c
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Check kmalloc return value before use the buffer.

Signed-off-by: Zhitong Wang <zhitong.wangzt@alibaba-inc.com>

---
 drivers/parisc/ccio-dma.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index f511e70..f465417 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1407,6 +1407,11 @@ static void __init ccio_init_resources(struct ioc *ioc)
 	struct resource *res = ioc->mmio_region;
 	char *name = kmalloc(14, GFP_KERNEL);
 
+	if (!name) {
+		printk(KERN_ERR "%s() failed to get enough memory\n", __func__);
+		return ;
+	}
+
 	snprintf(name, 14, "GSC Bus [%d/]", ioc->hw_path);
 
 	ccio_init_resource(res, name, &ioc->ioc_regs->io_io_low);
-- 
1.6.5.3

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From - Thu Nov 08 21:05:55 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] Parisc: Check kmalloc return value before use the
	buffer in ccio-dma.c
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On Thu, May 06, 2010 at 10:42:08AM +0800, wzt.wzt@gmail.com wrote:
> +	if (!name) {
> +		printk(KERN_ERR "%s() failed to get enough memory\n", __func__);
> +		return ;
> +	}
> +
>  	snprintf(name, 14, "GSC Bus [%d/]", ioc->hw_path);

This code can't fail, since the failure case won't be handled by the
probe function, and will continue along without properly initializing
the resources and will fail later. While we could add proper error
handling, if these functions are called, the ccio IOMMU exists on the
machine, and without it, we can't do any DMA (amongst other things.)
So in that case, if this kmalloc fails (which it really shouldn't...)
we're pretty much screwed.

We can change it to GFP_ATOMIC|__GFP_NOFAIL so it will retry infinitely,
or we can panic in the error path with a nice error message so the users
knows why his machine isn't going to work.

I suggest the latter since you'll have the test to squelch gcc warnings
and such.

regards, Kyle

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From - Thu Nov 08 21:05:55 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH] Parisc: Check kmalloc return value before use the
	buffer in ccio-dma.c
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On Thu, May 06, 2010 at 12:03:31AM -0400, Kyle McMartin wrote:
> We can change it to GFP_ATOMIC|__GFP_NOFAIL so it will retry infinitely,
> or we can panic in the error path with a nice error message so the users
> knows why his machine isn't going to work.

If we can't initialise the IOMMU, can we even get a panic message out to
the user?

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."

From - Thu Nov 08 21:05:55 2018
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From - Thu Nov 08 21:05:55 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH] Parisc: Check kmalloc return value before use the
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On Thu, May 06, 2010 at 04:59:48AM -0600, Matthew Wilcox wrote:
> On Thu, May 06, 2010 at 12:03:31AM -0400, Kyle McMartin wrote:
> > We can change it to GFP_ATOMIC|__GFP_NOFAIL so it will retry infinitely,
> > or we can panic in the error path with a nice error message so the users
> > knows why his machine isn't going to work.
> 
> If we can't initialise the IOMMU, can we even get a panic message out to
> the user?
> 

Excellent question! I'm not sure. IODC console will still be working up
until it gets bonked, so early_console is probably still functional up
until that point.

--Kyle
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Subject: Weird sys readings during ghc run
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Hi pa-ckers

Sometimes a few graphs tell a lot more than words, here's what has
been recently observed on lafayette.d.o, one of the hppa Debian
autobuilders.

http://imagebin.ca/view/uhqcMQ.html
http://imagebin.ca/view/kGT08zc.html
http://imagebin.ca/view/r61bGE0X.html

The beginning of the (seemingly) abnormal sys usage, and very high IPI
rate coincides with:

PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
14042 buildd    20   0  337m 311m  20m R   99  7.7 138:46.37 ghc

It looks like (but maybe I'm just paranoid) ghc is doing some nasty  
things...

Lafayette is running 2.6.32-3-parisc64-smp, and this apparently
happened during the build of haskell-src-exts_1.8.2-3

The build got eventually killed with ghc still running, see:
https://buildd.debian.org/fetch.cgi?&pkg=haskell-src-exts&ver=1.8.2-3&arch=hppa&stamp=1273149256&file=log

HTH

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/

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On Thu, 06 May 2010, Thibaut VAR=C8NE wrote:

> Lafayette is running 2.6.32-3-parisc64-smp, and this apparently
> happened during the build of haskell-src-exts_1.8.2-3

Besides, the minifail cache aliasing problem, I'm absolutely convinced
that there are race conditions in the updating of ptes on smp kernels.
Until that is fixed, all manner of wierd things can happen.  However,
as I'm finding, fixing this is tricky and it will have a performance
impact.

Dave
--=20
J. David Anglin                                  dave.anglin@nrc-cnrc.g=
c.ca
National Research Council of Canada              (613) 990-0752 (FAX: 9=
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Hi pa-ckers.

Attached is the console capture on lafayette after it crashed in  
dm_snapshot.

FWIW, the output looks a bit mingled, and it's not the first time I  
see intertwined output like this, at least on parisc. I wonder if  
something's gone wrong with printk() on SMP machines...

Lafayette is running Linux version 2.6.32-3-parisc64-smp (Debian  
2.6.32-9) (maks@debian.org) (gcc version 4.3.4 (GCC) ) #1 SMP Thu Feb  
25 16:08:05 UTC 2010

HTH

T-Bone

[425641.452000] EXT3 FS on dm-3, internal journal
[425641.456000] EXT3-fs: mounted filesystem with ordered data mode.

Press Q/q to quit, Enter to continue:

[426045.348000] Backtrace:
[426045.348000]  [<0000000020b28bf8>] exit_exception_table+0x68/0x1a8  
[dm_snapshot]
[426045.348000]  [<0000000020b28ee0>] snapshot_dtr+0x1a8/0x390  
[dm_snapshot]
[426045.348000]  [<0000000020731e30>] dm_table_destroy+0xa8/0x1d8  
[dm_mod]
[426045.348000]  [<000000002072aa3c>] __unbind+0x7c/0x1e8 [dm_mod]
[426045.348000]  [<000000002072dda0>] dm_put+0x148/0x2d8 [dm_mod]
[426045.348000]  [<0000000020737054>] dev_remove+0x13c/0x1c8 [dm_mod]
[426045.348000]  [<0000000020737cb4>] ctl_ioctl+0x234/0x2c8 [dm_mod]
[426045.348000]  [<0000000020737da8>] dm_compat_ctl_ioctl+0x18/0x38  
[dm_mod]
[426045.348000]  [<0000000040257444>] compat_sys_ioctl+0x14c/0x4b0
[426045.348000]  [<0000000040104ef8>] syscall_exit+0x0/0x14
[426045.348000]
[426045.348000]
[426045.348000] Bad Address (null pointer deref?): Code=15  
regs=00000001288607e0 (Addr=000000004021d9f8)
[426045.348000]
[426045.348000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[426045.348000] PSW: 00001000000001100000011000001111 Not tainted
[426045.348000] r00-03  000000e00806060f 00000000406d7c20  
0000000020b28bf8 [426045.348000] r04-07  0000000020b25000  
00000000001bf050 000000000001bf05 0000000023f1b050
[426045.348000] r08-11  000000012941f658 0000000128860730  
0000000000020000 00000000405327c8
[426045.348000] r12-15  0000000040352b28 000000004034f190  
0000000040353534 0000000040352f74

Press Q/q to quit, Enter to continue:

[426045.348000] r16-19  0000000040351744 00000000c138fd04  
0000000040352f74 0000000040e5a000
[426045.348000] r20-23  0000000000000000 000ffffffffc8109  
0000000000000000 0003780
[426045.348000] r24-27  0000000008109af4 0000000008109af4  
00000000405327c8 00000000406b7c20
[426045.348000] r28-31  037fffffff3c39f8 0000000128860730  
00000001288607e0 000ffffffffc8109
[426045.348000] sr00-03  00000000058a6800 0000000000000000  
0000000000000000 00000000058a6800
[426045.348000] sr04-07  0000000000000000 0000000000000000  
0000000000000000 0000000000000000
[426045.348000]
[426045.348000] IASQ: 0000000000000000 0000000000000401f7a48  
00000000401f7a4c
[426045.348000]  IIR: 0f9300df    ISR: 0000000003800000  IOR:  
000000004021d9f8
[426045.348000]  CPU:        0   CR30: 0000000128860000 CR31:  
0000000000008020
[426045.348000]  ORIG_R28: 0000000040352b28
[426045.348000]  IAOQ[0]: kmem_cache_free+0x98/0x110
[426045.348000]  IAOQ[1]: kmem_cache_free+0x9c/0x110
[426045.348000]  RP(r2): exit_exception_table+0x68/0x1a8 [dm_snapshot]
[426045.348000] Backtrace:
[426045.34<0000000020b28bf8>] exit_exception_table+0x68/0x1a8  
[dm_snapshot]
[426045.348000]  [<0000000020b28ee0>] snapshot_dtr+0x1a8/0x390  
[dm_snapshot]
[426045.348000]  [<0000000020731e30>] dm_table_destroy+0xa8/0x1d8  
[dm_mod]
[426045.348000]  [<000000002072aa3c>] __unbind+0x7c/0x1e8 [dm_mod]
[426045.348000]  [<000000002072dda0>] dm_put+0x148/0x2d8 [dm_mod]

Press Q/q to quit, Enter to continue:

[426045.348000]  [<0000000020737054>] dev_remove+0x13c/0x1c8 [dm_mod]
[426045.348000]  [<0000_ioctl+0x234/0x2c8 [dm_mod]
[426045.348000]  [<0000000020737da8>] dm_compat_ctl_ioctl+0x18/0x38  
[dm_mod]
[426045.348000]  [<0000000040257444>] compat_sys_ioctl+0x14c/0x4b0
[426045.348000]  [<0000000040104ef8>] syscall_exit+0x0/0x14
[426045.348000]
[426045.348000] ernel panic - not syncing: Bad Address (null pointer  
deref?)
[426045.348000] Backtrace:
[426045.348000]  [<000000004011d41c>] show_stack+0x14/0x20
[426045.348000]  [<0000000040115e40>] dump_stack+0x18/0x28
[426045.348000]  [<0000000040115f00>] panic+0xb0/0x2c0
[426045.348000]  [<000000004011dab8>] parisc_terminate+0x168/0x170
[426045.348000]  [<000000004011be60>] do_page_fault+0x2f8/0x388
[426045.348000]  [<000000004011e560>] handle_interr50/0x870
[426045.348000]  [<00000000401f7a48>] kmem_cache_free+0x98/0x110
[426045.348000]  [<0000000020b28bf8>] exit_exception_table+0x68/0x1a8  
[dm_snapshot]
[426045.348000]  [<0000000020b28ee0>] snapshot_dtr+0x1a8/0x390  
[dm_snapshot]
[426045.348000]  [<0000000020731e30>] dm_table_destroy+0xa8/0x1d8  
[dm_mod]
[426045.348000]  [<000000002072aa3c>] __unbind+0x7c/0x1e8 [dm_mod]
[426045.348000]  [<000000002072dda0>] dm_put+0x148/0x2d8 [dm_mod]

Press Q/q to quit, Enter to continue:

[<0000000020737054>] dev_remove+0x13c/0x1c8 [dm_mod]
[426045.348000]  [<0000000020737cb4>] ctl_ioctl+0x234/0x2c8 [dm_mod]
[426045.348000]  [<0000000020737da8>] dm_compat_ctl_ioctl+0x18/0x38  
[dm_mod]
[426045.348000]  [<0000000040257444>] compat_sys_ioctl+0x14c/0x4b0
[426045.348000]


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Le 6 mai 10 =E0 23:49, Thibaut VAR=C8NE a =E9crit :

> Hi pa-ckers
>
> Sometimes a few graphs tell a lot more than words, here's what has
> been recently observed on lafayette.d.o, one of the hppa Debian
> autobuilders.
>
> http://imagebin.ca/view/uhqcMQ.html
> http://imagebin.ca/view/kGT08zc.html
> http://imagebin.ca/view/r61bGE0X.html
>
> The beginning of the (seemingly) abnormal sys usage, and very high IP=
I
> rate coincides with:
>
> PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
> 14042 buildd    20   0  337m 311m  20m R   99  7.7 138:46.37 ghc
>
> It looks like (but maybe I'm just paranoid) ghc is doing some nasty =20
> things...
>
> Lafayette is running 2.6.32-3-parisc64-smp, and this apparently
> happened during the build of haskell-src-exts_1.8.2-3
>
> The build got eventually killed with ghc still running, see:
> https://buildd.debian.org/fetch.cgi?&pkg=3Dhaskell-src-exts&ver=3D1.8=
=2E2-3&arch=3Dhppa&stamp=3D1273149256&file=3Dlog

=46or the records, exactly the same symptoms (100% sys usage, IPI going=
 =20
crazy, build timeout) happened during the build of missingh.

Log is here:
https://buildd.debian.org/fetch.cgi?pkg=3Dmissingh&arch=3Dhppa&ver=3D1.=
1.0.3-2&stamp=3D1273363098&file=3Dlog&as=3Draw

HTH--
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: threads and fork on machine with VIPT-WB cache
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To: Helge Deller <deller@gmx.de>
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On Tue, 20 Apr 2010, Helge Deller wrote:

> Hi Dave,
> 
> On 04/19/2010 06:26 PM, John David Anglin wrote:
> > On Tue, 13 Apr 2010, Helge Deller wrote:
> >> Still crashes.
> > 
> > Can you you try the patch below?  The change to cacheflush.h is the same
> > as before.
> 
> Thanks for the patch.
> I applied it on top of a clean 2.6.33.2 kernel and ran multiple parallel 
> minifail programs on my B2000 (2 CPUs, SMP kernel, 32bit kernel).
> Sadly minifail still crashed the same way as before.

Attached is my latest 2.6.33.3 patch bundle.  It uses a slightly modified
version of James' minifail fix.

The big change is the management of PTE updates and the TLB exception
support on SMP configs.  I have modified what was formerly the pa_dbit_lock
and used it for all user page table updates.  I also added a recheck of the
PTE after TLB inserts.  The idea for this was derived from a similar check
in arch/ia64/kernel/ivt.S.  I also whack the TLB page in ptep_set_wrprotect
and modified the TLB locking for clear_user_page (it's now in asm).

So far, the change is lightly tested.  I've been burned enough to know
that there are likely still problems.  However, so far I haven't seen any
random segvs on my rp3440 or gsyprf11.

I would appreciate pa'ers testing this change.  If it looks good, I'll
extract the new PTE handling and formally submit.

There are some obvious performance improvements that could be made like
lock hashing.  However, I just wanted something that works as a first
step.  It's hard to test this stuff because the failures are random.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--VS++wcV0S1rZb1Fb
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Content-Disposition: attachment; filename="diff-20100508.d.3"

diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 716634d..ad7df44 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -24,29 +24,46 @@
  * Hash function to index into a different SPINLOCK.
  * Since "a" is usually an address, use one spinlock per cacheline.
  */
-#  define ATOMIC_HASH_SIZE 4
-#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_HASH_SIZE (4096/L1_CACHE_BYTES)  /* 4 */
+#  define ATOMIC_HASH(a)      (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_USER_HASH(a) (&(__atomic_user_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
 
 extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
+extern arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 
 /* Can't use raw_spin_lock_irq because of #include problems, so
  * this is the substitute */
-#define _atomic_spin_lock_irqsave(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);		\
+#define _atomic_spin_lock_irqsave_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;		\
 	local_irq_save(f);			\
 	arch_spin_lock(s);			\
 } while(0)
 
-#define _atomic_spin_unlock_irqrestore(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);			\
+#define _atomic_spin_unlock_irqrestore_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;			\
 	arch_spin_unlock(s);				\
 	local_irq_restore(f);				\
 } while(0)
 
+/* kernel memory locks */
+#define _atomic_spin_lock_irqsave(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_HASH(l))
+
+/* userspace memory locks */
+#define _atomic_spin_lock_irqsave_user(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_USER_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore_user(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_USER_HASH(l))
 
 #else
 #  define _atomic_spin_lock_irqsave(l,f) do { local_irq_save(f); } while (0)
 #  define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
+#  define _atomic_spin_lock_irqsave_user(l,f) _atomic_spin_lock_irqsave(l,f)
+#  define _atomic_spin_unlock_irqrestore_user(l,f) _atomic_spin_unlock_irqrestore(l,f)
 #endif
 
 /* This should get optimized out since it's never called.
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7a73b61..b90c895 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -2,6 +2,7 @@
 #define _PARISC_CACHEFLUSH_H
 
 #include <linux/mm.h>
+#include <linux/uaccess.h>
 
 /* The usual comment is "Caches aren't brain-dead on the <architecture>".
  * Unfortunately, that doesn't apply to PA-RISC. */
@@ -104,21 +105,32 @@ void mark_rodata_ro(void);
 #define ARCH_HAS_KMAP
 
 void kunmap_parisc(void *addr);
+void *kmap_parisc(struct page *page);
 
 static inline void *kmap(struct page *page)
 {
 	might_sleep();
-	return page_address(page);
+	return kmap_parisc(page);
 }
 
 #define kunmap(page)			kunmap_parisc(page_address(page))
 
-#define kmap_atomic(page, idx)		page_address(page)
+static inline void *kmap_atomic(struct page *page, enum km_type idx)
+{
+	pagefault_disable();
+	return kmap_parisc(page);
+}
 
-#define kunmap_atomic(addr, idx)	kunmap_parisc(addr)
+static inline void kunmap_atomic(void *addr, enum km_type idx)
+{
+	kunmap_parisc(addr);
+	pagefault_enable();
+}
 
-#define kmap_atomic_pfn(pfn, idx)	page_address(pfn_to_page(pfn))
-#define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
+#define kmap_atomic_prot(page, idx, prot)	kmap_atomic(page, idx)
+#define kmap_atomic_pfn(pfn, idx)	kmap_atomic(pfn_to_page(pfn), (idx))
+#define kmap_atomic_to_page(ptr)	virt_to_page(kmap_atomic(virt_to_page(ptr), (enum km_type) 0))
+#define kmap_flush_unused()	do {} while(0)
 #endif
 
 #endif /* _PARISC_CACHEFLUSH_H */
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 0c705c3..7bc963e 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -55,6 +55,7 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 {
 	int err = 0;
 	int uval;
+	unsigned long flags;
 
 	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
 	 * our gateway page, and causes no end of trouble...
@@ -65,10 +66,15 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
 		return -EFAULT;
 
+	_atomic_spin_lock_irqsave_user(uaddr, flags);
+
 	err = get_user(uval, uaddr);
-	if (err) return -EFAULT;
-	if (uval == oldval)
-		err = put_user(newval, uaddr);
+	if (!err)
+		if (uval == oldval)
+			err = put_user(newval, uaddr);
+
+	_atomic_spin_unlock_irqrestore_user(uaddr, flags);
+
 	if (err) return -EFAULT;
 	return uval;
 }
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index a27d2e2..4de5bb1 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -30,15 +30,21 @@
  */
 #define kern_addr_valid(addr)	(1)
 
+extern spinlock_t pa_pte_lock;
+extern spinlock_t pa_tlb_lock;
+
 /* Certain architectures need to do special things when PTEs
  * within a page table are directly modified.  Thus, the following
  * hook is made available.
  */
-#define set_pte(pteptr, pteval)                                 \
-        do{                                                     \
+#define set_pte(pteptr, pteval)					\
+        do {							\
+		unsigned long flags;				\
+		spin_lock_irqsave(&pa_pte_lock, flags);		\
                 *(pteptr) = (pteval);                           \
+		spin_unlock_irqrestore(&pa_pte_lock, flags);	\
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+#define set_pte_at(mm,addr,ptep,pteval)	set_pte(ptep, pteval)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -262,6 +268,7 @@ extern unsigned long *empty_zero_page;
 #define pte_none(x)     ((pte_val(x) == 0) || (pte_val(x) & _PAGE_FLUSH))
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
 #define pte_clear(mm,addr,xp)	do { pte_val(*(xp)) = 0; } while (0)
+#define pte_same(A,B)	(pte_val(A) == pte_val(B))
 
 #define pmd_flag(x)	(pmd_val(x) & PxD_FLAG_MASK)
 #define pmd_address(x)	((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
@@ -423,56 +430,82 @@ extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
 #define __pte_to_swp_entry(pte)		((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x)		((pte_t) { (x).val })
 
-static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+static inline void __flush_tlb_page(struct mm_struct *mm, unsigned long addr)
 {
-#ifdef CONFIG_SMP
-	if (!pte_young(*ptep))
-		return 0;
-	return test_and_clear_bit(xlate_pabit(_PAGE_ACCESSED_BIT), &pte_val(*ptep));
-#else
-	pte_t pte = *ptep;
-	if (!pte_young(pte))
-		return 0;
-	set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte));
-	return 1;
-#endif
+	unsigned long flags;
+
+	/* For one page, it's not worth testing the split_tlb variable.  */
+	spin_lock_irqsave(&pa_tlb_lock, flags);
+	mtsp(mm->context,1);
+	pdtlb(addr);
+	pitlb(addr);
+	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 }
 
-extern spinlock_t pa_dbit_lock;
+static inline int ptep_set_access_flags(struct vm_area_struct *vma, unsigned
+ long addr, pte_t *ptep, pte_t entry, int dirty)
+{
+	int changed;
+	unsigned long flags;
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	changed = !pte_same(*ptep, entry);
+	if (changed) {
+		*ptep = entry;
+	}
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
+	if (changed) {
+		__flush_tlb_page(vma->vm_mm, addr);
+	}
+	return changed;
+}
+
+static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+{
+	pte_t pte;
+	unsigned long flags;
+	int r;
+
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	pte = *ptep;
+	if (pte_young(pte)) {
+		*ptep = pte_mkold(pte);
+		r = 1;
+	} else {
+		r = 0;
+	}
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
+
+	return r;
+}
 
 struct mm_struct;
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-	pte_t old_pte;
-	pte_t pte;
+	pte_t pte, old_pte;
+	unsigned long flags;
 
-	spin_lock(&pa_dbit_lock);
+	spin_lock_irqsave(&pa_pte_lock, flags);
 	pte = old_pte = *ptep;
 	pte_val(pte) &= ~_PAGE_PRESENT;
 	pte_val(pte) |= _PAGE_FLUSH;
-	set_pte_at(mm,addr,ptep,pte);
-	spin_unlock(&pa_dbit_lock);
+	*ptep = pte;
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
 
 	return old_pte;
 }
 
 static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-#ifdef CONFIG_SMP
-	unsigned long new, old;
+	pte_t old_pte;
+	unsigned long flags;
 
-	do {
-		old = pte_val(*ptep);
-		new = pte_val(pte_wrprotect(__pte (old)));
-	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
-#else
-	pte_t old_pte = *ptep;
-	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
-#endif
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	old_pte = *ptep;
+	*ptep = pte_wrprotect(old_pte);
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
+	__flush_tlb_page(mm, addr);
 }
 
-#define pte_same(A,B)	(pte_val(A) == pte_val(B))
-
 #endif /* !__ASSEMBLY__ */
 
 
@@ -504,6 +537,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 
 #define HAVE_ARCH_UNMAPPED_AREA
 
+#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
index d91357b..4653c77 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -160,7 +160,7 @@ static inline void set_eiem(unsigned long val)
    ldcd). */
 
 #define __PA_LDCW_ALIGNMENT	4
-#define __ldcw_align(a) ((volatile unsigned int *)a)
+#define __ldcw_align(a) (&(a)->slock)
 #define __LDCW	"ldcw,co"
 
 #endif /*!CONFIG_PA20*/
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index ec787b4..b2f35b2 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -137,6 +137,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -225,6 +226,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
@@ -290,5 +292,11 @@ int main(void)
 	BLANK();
 	DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
 	BLANK();
+
+#ifdef CONFIG_SMP
+	DEFINE(ASM_ATOMIC_HASH_SIZE_SHIFT, __builtin_ffs(ATOMIC_HASH_SIZE)-1);
+	DEFINE(ASM_ATOMIC_HASH_ENTRY_SHIFT, __builtin_ffs(sizeof(__atomic_hash[0]))-1);
+#endif
+
 	return 0;
 }
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index b6ed34d..a9a4e44 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -336,9 +336,9 @@ __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
 	}
 }
 
-void flush_dcache_page(struct page *page)
+static void flush_user_dcache_page_internal(struct address_space *mapping,
+					    struct page *page)
 {
-	struct address_space *mapping = page_mapping(page);
 	struct vm_area_struct *mpnt;
 	struct prio_tree_iter iter;
 	unsigned long offset;
@@ -346,14 +346,6 @@ void flush_dcache_page(struct page *page)
 	pgoff_t pgoff;
 	unsigned long pfn = page_to_pfn(page);
 
-
-	if (mapping && !mapping_mapped(mapping)) {
-		set_bit(PG_dcache_dirty, &page->flags);
-		return;
-	}
-
-	flush_kernel_dcache_page(page);
-
 	if (!mapping)
 		return;
 
@@ -387,6 +379,19 @@ void flush_dcache_page(struct page *page)
 	}
 	flush_dcache_mmap_unlock(mapping);
 }
+
+void flush_dcache_page(struct page *page)
+{
+	struct address_space *mapping = page_mapping(page);
+
+	if (mapping && !mapping_mapped(mapping)) {
+		set_bit(PG_dcache_dirty, &page->flags);
+		return;
+	}
+
+	flush_kernel_dcache_page(page);
+	flush_user_dcache_page_internal(mapping, page);
+}
 EXPORT_SYMBOL(flush_dcache_page);
 
 /* Defined in arch/parisc/kernel/pacache.S */
@@ -395,15 +400,12 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
+static void clear_user_page_asm(void *page, unsigned long vaddr)
 {
-	unsigned long flags;
 	/* This function is implemented in assembly in pacache.S */
 	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
 
-	purge_tlb_start(flags);
 	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
 }
 
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
@@ -440,7 +442,6 @@ void __init parisc_setup_cache_timing(void)
 }
 
 extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
 
 void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 {
@@ -470,21 +471,9 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 {
 	/* no coherency needed (all in kmap/kunmap) */
 	copy_user_page_asm(vto, vfrom);
-	if (!parisc_requires_coherency())
-		flush_kernel_dcache_page_asm(vto);
 }
 EXPORT_SYMBOL(copy_user_page);
 
-#ifdef CONFIG_PA8X00
-
-void kunmap_parisc(void *addr)
-{
-	if (parisc_requires_coherency())
-		flush_kernel_dcache_page_addr(addr);
-}
-EXPORT_SYMBOL(kunmap_parisc);
-#endif
-
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {
@@ -577,3 +566,25 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 		__flush_cache_page(vma, vmaddr);
 
 }
+
+void *kmap_parisc(struct page *page)
+{
+	/* this is a killer.  There's no easy way to test quickly if
+	 * this page is dirty in any userspace.  Additionally, for
+	 * kernel alterations of the page, we'd need it invalidated
+	 * here anyway, so currently flush (and invalidate)
+	 * universally */
+	flush_user_dcache_page_internal(page_mapping(page), page);
+	return page_address(page);
+}
+EXPORT_SYMBOL(kmap_parisc);
+
+void kunmap_parisc(void *addr)
+{
+	/* flush and invalidate the kernel mapping.  We need the
+	 * invalidate so we don't have stale data at this cache
+	 * location the next time the page is mapped */
+	flush_kernel_dcache_page_addr(addr);
+}
+EXPORT_SYMBOL(kunmap_parisc);
+
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3a44f7f..e1c0128 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -45,7 +45,7 @@
 	.level 2.0
 #endif
 
-	.import         pa_dbit_lock,data
+	.import         pa_pte_lock,data
 
 	/* space_to_prot macro creates a prot id from a space id */
 
@@ -364,32 +364,6 @@
 	.align		32
 	.endm
 
-	/* The following are simple 32 vs 64 bit instruction
-	 * abstractions for the macros */
-	.macro		EXTR	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	extrd,u		\reg1,32+(\start),\length,\reg2
-#else
-	extrw,u		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEP	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	depd		\reg1,32+(\start),\length,\reg2
-#else
-	depw		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEPI	val,start,length,reg
-#ifdef CONFIG_64BIT
-	depdi		\val,32+(\start),\length,\reg
-#else
-	depwi		\val,\start,\length,\reg
-#endif
-	.endm
-
 	/* In LP64, the space contains part of the upper 32 bits of the
 	 * fault.  We have to extract this and place it in the va,
 	 * zeroing the corresponding bits in the space register */
@@ -442,19 +416,19 @@
 	 */
 	.macro		L2_ptep	pmd,pte,index,va,fault
 #if PT_NLEVELS == 3
-	EXTR		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
+	extru		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
 #else
-	EXTR		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
+	extru		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 #endif
-	DEP             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	dep             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	copy		%r0,\pte
 	ldw,s		\index(\pmd),\pmd
 	bb,>=,n		\pmd,_PxD_PRESENT_BIT,\fault
-	DEP		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
+	dep		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
 	copy		\pmd,%r9
 	SHLREG		%r9,PxD_VALUE_SHIFT,\pmd
-	EXTR		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
-	DEP		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	extru		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
+	dep		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
 	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
 	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
@@ -488,13 +462,44 @@
 	L2_ptep		\pgd,\pte,\index,\va,\fault
 	.endm
 
+	/* SMP lock for consistent PTE updates.  Unlocks and jumps
+	   to FAULT if the page is not present.  Note the preceeding
+	   load of the PTE can't be deleted since we can't fault holding
+	   the lock.  */ 
+	.macro		pte_lock	ptep,pte,spc,tmp,tmp1,fault
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n        0,\spc,2f
+	load32		PA(pa_pte_lock),\tmp1
+1:
+	LDCW		0(\tmp1),\tmp
+	cmpib,COND(=)         0,\tmp,1b
+	nop
+	LDREG		%r0(\ptep),\pte
+	bb,<,n		\pte,_PAGE_PRESENT_BIT,2f
+	ldi             1,\tmp
+	stw             \tmp,0(\tmp1)
+	b,n		\fault
+2:
+#endif
+	.endm
+
+	.macro		pte_unlock	spc,tmp,tmp1
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n        0,\spc,1f
+	ldi             1,\tmp
+	stw             \tmp,0(\tmp1)
+1:
+#endif
+	.endm
+
 	/* Set the _PAGE_ACCESSED bit of the PTE.  Be clever and
 	 * don't needlessly dirty the cache line if it was already set */
-	.macro		update_ptep	ptep,pte,tmp,tmp1
-	ldi		_PAGE_ACCESSED,\tmp1
-	or		\tmp1,\pte,\tmp
-	and,COND(<>)	\tmp1,\pte,%r0
-	STREG		\tmp,0(\ptep)
+	.macro		update_ptep	ptep,pte,tmp
+	bb,<,n		\pte,_PAGE_ACCESSED_BIT,1f
+	ldi		_PAGE_ACCESSED,\tmp
+	or		\tmp,\pte,\pte
+	STREG		\pte,0(\ptep)
+1:
 	.endm
 
 	/* Set the dirty bit (and accessed bit).  No need to be
@@ -605,7 +610,7 @@
 	depdi		0,31,32,\tmp
 #endif
 	copy		\va,\tmp1
-	DEPI		0,31,23,\tmp1
+	depi		0,31,23,\tmp1
 	cmpb,COND(<>),n	\tmp,\tmp1,\fault
 	ldi		(_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot
 	depd,z		\prot,8,7,\prot
@@ -622,6 +627,39 @@
 	or		%r26,%r0,\pte
 	.endm 
 
+	/* Save PTE for recheck if SMP.  */
+	.macro		save_pte	pte,tmp
+#ifdef CONFIG_SMP
+	copy		\pte,\tmp
+#endif
+	.endm
+
+	/* Reload the PTE and purge the data TLB entry if the new
+	   value is different from the old one.  */
+	.macro		dtlb_recheck	ptep,old_pte,spc,va,tmp
+#ifdef CONFIG_SMP
+	LDREG		%r0(\ptep),\tmp
+	cmpb,COND(=),n	\old_pte,\tmp,1f
+	mfsp		%sr1,\tmp
+	mtsp		\spc,%sr1
+	pdtlb,l		%r0(%sr1,\va)
+	mtsp		\tmp,%sr1
+1:
+#endif
+	.endm
+
+	.macro		itlb_recheck	ptep,old_pte,spc,va,tmp
+#ifdef CONFIG_SMP
+	LDREG		%r0(\ptep),\tmp
+	cmpb,COND(=),n	\old_pte,\tmp,1f
+	mfsp		%sr1,\tmp
+	mtsp		\spc,%sr1
+	pitlb,l		%r0(%sr1,\va)
+	mtsp		\tmp,%sr1
+1:
+#endif
+	.endm
+
 
 	/*
 	 * Align fault_vector_20 on 4K boundary so that both
@@ -758,6 +796,10 @@ ENTRY(__kernel_thread)
 
 	STREG	%r22, PT_GR22(%r1)	/* save r22 (arg5) */
 	copy	%r0, %r22		/* user_tid */
+	copy	%r0, %r21		/* child_tid */
+#else
+	stw	%r0, -52(%r30)	     	/* user_tid */
+	stw	%r0, -56(%r30)	     	/* child_tid */
 #endif
 	STREG	%r26, PT_GR26(%r1)  /* Store function & argument for child */
 	STREG	%r25, PT_GR25(%r1)
@@ -765,7 +807,7 @@ ENTRY(__kernel_thread)
 	ldo	CLONE_VM(%r26), %r26   /* Force CLONE_VM since only init_mm */
 	or	%r26, %r24, %r26      /* will have kernel mappings.	 */
 	ldi	1, %r25			/* stack_start, signals kernel thread */
-	stw	%r0, -52(%r30)	     	/* user_tid */
+	ldi	0, %r23			/* child_stack_size */
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
@@ -972,7 +1014,10 @@ intr_check_sig:
 	BL	do_notify_resume,%r2
 	copy	%r16, %r26			/* struct pt_regs *regs */
 
-	b,n	intr_check_sig
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 intr_restore:
 	copy            %r16,%r29
@@ -997,13 +1042,6 @@ intr_restore:
 
 	rfi
 	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
 
 #ifndef CONFIG_PREEMPT
 # define intr_do_preempt	intr_restore
@@ -1026,14 +1064,12 @@ intr_do_resched:
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	ldil	L%intr_check_sig, %r2
-#ifndef CONFIG_64BIT
-	b	schedule
-#else
-	load32	schedule, %r20
-	bv	%r0(%r20)
-#endif
-	ldo	R%intr_check_sig(%r2), %r2
+	BL	schedule,%r2
+	nop
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 	/* preempt the current task on returning to kernel
 	 * mode from an interrupt, iff need_resched is set,
@@ -1214,11 +1250,14 @@ dtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,dtlb_check_alias_20w
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,dtlb_check_alias_20w
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-	
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1238,11 +1277,10 @@ nadtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,nadtlb_check_flush_20w
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1272,8 +1310,11 @@ dtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_11
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,dtlb_check_alias_11
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
@@ -1283,6 +1324,7 @@ dtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1321,11 +1363,9 @@ nadtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_11
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
-
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
@@ -1333,6 +1373,7 @@ nadtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1368,13 +1409,17 @@ dtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_20
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,dtlb_check_alias_20
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1394,13 +1439,13 @@ nadtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_20
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 	
         idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1508,11 +1553,14 @@ itlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,itlb_fault
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-	
 	iitlbt          pte,prot
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1526,8 +1574,11 @@ itlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,itlb_fault
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
@@ -1537,6 +1588,7 @@ itlb_miss_11:
 	iitlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1548,13 +1600,17 @@ itlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,itlb_fault
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0	
 
 	iitlbt          pte,prot
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1570,29 +1626,14 @@ dbit_trap_20w:
 
 	L3_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20w
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20w:
-	LDCW		0(t0),t1
-	cmpib,COND(=)         0,t1,dbit_spin_20w
-	nop
-
-dbit_nolock_20w:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-		
 	idtlbt          pte,prot
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20w
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20w:
-#endif
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1606,35 +1647,21 @@ dbit_trap_11:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_11
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_11:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_11
-	nop
-
-dbit_nolock_11:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
-	mfsp            %sr1,t1  /* Save sr1 so we can use it in tlb inserts */
+	mfsp            %sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
 	idtlba		pte,(%sr1,va)
 	idtlbp		prot,(%sr1,va)
 
-	mtsp            t1, %sr1     /* Restore sr1 */
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_11
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_11:
-#endif
+	mtsp            t0, %sr1     /* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1646,32 +1673,17 @@ dbit_trap_20:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_20
-	nop
-
-dbit_nolock_20:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
-	f_extend	pte,t1
+	f_extend	pte,t0
 	
         idtlbt          pte,prot
-
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20:
-#endif
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1772,9 +1784,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1804,7 +1816,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1823,8 +1835,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1847,7 +1860,9 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
@@ -2076,9 +2091,10 @@ syscall_restore:
 	LDREG	TASK_PT_GR31(%r1),%r31	   /* restore syscall rp */
 
 	/* NOTE: We use rsm/ssm pair to make this operation atomic */
+	LDREG   TASK_PT_GR30(%r1),%r1              /* Get user sp */
 	rsm     PSW_SM_I, %r0
-	LDREG   TASK_PT_GR30(%r1),%r30             /* restore user sp */
-	mfsp	%sr3,%r1			   /* Get users space id */
+	copy    %r1,%r30                           /* Restore user sp */
+	mfsp    %sr3,%r1                           /* Get user space id */
 	mtsp    %r1,%sr7                           /* Restore sr7 */
 	ssm     PSW_SM_I, %r0
 
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 09b77b2..4f0d975 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -277,6 +277,7 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
+#if 1
 ENTRY(copy_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
@@ -400,6 +401,7 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
+#endif
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -548,17 +550,33 @@ ENTRY(__clear_user_page_asm)
 	depwi		0, 31,12, %r28		/* Clear any offset bits */
 #endif
 
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock, %r1
+	ldo		R%pa_tlb_lock(%r1), %r24
+	rsm		PSW_SM_I, %r22
+1:
+	LDCW		0(%r24),%r25
+	cmpib,COND(=)	0,%r25,1b
+	nop
+#endif
+
 	/* Purge any old translation */
 
 	pdtlb		0(%r28)
 
+#ifdef CONFIG_SMP
+	ldi		1,%r25
+	stw		%r25,0(%r24)
+	mtsm		%r22
+#endif
+
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
 
 	/* PREFETCH (Write) has not (yet) been proven to help here */
 	/* #define	PREFETCHW_OP	ldd		256(%0), %r0 */
 
-1:	std		%r0, 0(%r28)
+2:	std		%r0, 0(%r28)
 	std		%r0, 8(%r28)
 	std		%r0, 16(%r28)
 	std		%r0, 24(%r28)
@@ -574,13 +592,13 @@ ENTRY(__clear_user_page_asm)
 	std		%r0, 104(%r28)
 	std		%r0, 112(%r28)
 	std		%r0, 120(%r28)
-	addib,COND(>)		-1, %r1, 1b
+	addib,COND(>)		-1, %r1, 2b
 	ldo		128(%r28), %r28
 
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
+2:
 	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
@@ -597,7 +615,7 @@ ENTRY(__clear_user_page_asm)
 	stw		%r0, 52(%r28)
 	stw		%r0, 56(%r28)
 	stw		%r0, 60(%r28)
-	addib,COND(>)		-1, %r1, 1b
+	addib,COND(>)		-1, %r1, 2b
 	ldo		64(%r28), %r28
 #endif	/* CONFIG_64BIT */
 
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index cb71f3d..84b3239 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -128,6 +128,14 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_INFO "The 32-bit Kernel has started...\n");
 #endif
 
+	/* Consistency check on the size and alignments of our spinlocks */
+#ifdef CONFIG_SMP
+	BUILD_BUG_ON(sizeof(arch_spinlock_t) != __PA_LDCW_ALIGNMENT);
+	BUG_ON((unsigned long)&__atomic_hash[0] & (__PA_LDCW_ALIGNMENT-1));
+	BUG_ON((unsigned long)&__atomic_hash[1] & (__PA_LDCW_ALIGNMENT-1));
+#endif
+	BUILD_BUG_ON((1<<L1_CACHE_SHIFT) != L1_CACHE_BYTES);
+
 	pdc_console_init();
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f5f9602..68e75ce 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -47,18 +47,17 @@ ENTRY(linux_gateway_page)
 	KILL_INSN
 	.endr
 
-	/* ADDRESS 0xb0 to 0xb4, lws uses 1 insns for entry */
+	/* ADDRESS 0xb0 to 0xb8, lws uses two insns for entry */
 	/* Light-weight-syscall entry must always be located at 0xb0 */
 	/* WARNING: Keep this number updated with table size changes */
 #define __NR_lws_entries (2)
 
 lws_entry:
-	/* Unconditional branch to lws_start, located on the 
-	   same gateway page */
-	b,n	lws_start
+	gate	lws_start, %r0		/* increase privilege */
+	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
 
-	/* Fill from 0xb4 to 0xe0 */
-	.rept 11
+	/* Fill from 0xb8 to 0xe0 */
+	.rept 10
 	KILL_INSN
 	.endr
 
@@ -423,9 +422,6 @@ tracesys_sigexit:
 
 	*********************************************************/
 lws_start:
-	/* Gate and ensure we return to userspace */
-	gate	.+8, %r0
-	depi	3, 31, 2, %r31	/* Ensure we return to userspace */
 
 #ifdef CONFIG_64BIT
 	/* FIXME: If we are a 64-bit kernel just
@@ -442,7 +438,7 @@ lws_start:
 #endif	
 
         /* Is the lws entry number valid? */
-	comiclr,>>=	__NR_lws_entries, %r20, %r0
+	comiclr,>>	__NR_lws_entries, %r20, %r0
 	b,n	lws_exit_nosys
 
 	/* WARNING: Trashing sr2 and sr3 */
@@ -473,7 +469,7 @@ lws_exit:
 	/* now reset the lowest bit of sp if it was set */
 	xor	%r30,%r1,%r30
 #endif
-	be,n	0(%sr3, %r31)
+	be,n	0(%sr7, %r31)
 
 
 	
@@ -529,7 +525,6 @@ lws_compare_and_swap32:
 #endif
 
 lws_compare_and_swap:
-#ifdef CONFIG_SMP
 	/* Load start of lock table */
 	ldil	L%lws_lock_start, %r20
 	ldo	R%lws_lock_start(%r20), %r28
@@ -572,8 +567,6 @@ cas_wouldblock:
 	ldo	2(%r0), %r28				/* 2nd case */
 	b	lws_exit				/* Contended... */
 	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
-#endif
-/* CONFIG_SMP */
 
 	/*
 		prev = *addr;
@@ -601,13 +594,11 @@ cas_action:
 1:	ldw	0(%sr3,%r26), %r28
 	sub,<>	%r28, %r25, %r0
 2:	stw	%r24, 0(%sr3,%r26)
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	/* Clear thread register indicator */
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	/* Return to userspace, set no error */
 	b	lws_exit
@@ -615,12 +606,10 @@ cas_action:
 
 3:		
 	/* Error occured on load or store */
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	b	lws_exit
 	ldo	-EFAULT(%r0),%r21	/* set errno */
@@ -672,7 +661,6 @@ ENTRY(sys_call_table64)
 END(sys_call_table64)
 #endif
 
-#ifdef CONFIG_SMP
 	/*
 		All light-weight-syscall atomic operations 
 		will use this set of locks 
@@ -694,8 +682,6 @@ ENTRY(lws_lock_start)
 	.endr
 END(lws_lock_start)
 	.previous
-#endif
-/* CONFIG_SMP for lws_lock_start */
 
 .end
 
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 8b58bf0..804b024 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -47,7 +47,7 @@
 			  /*  dumped to the console via printk)          */
 
 #if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
-DEFINE_SPINLOCK(pa_dbit_lock);
+DEFINE_SPINLOCK(pa_pte_lock);
 #endif
 
 static void parisc_show_stack(struct task_struct *task, unsigned long *sp,
diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c
index 353963d..bae6a86 100644
--- a/arch/parisc/lib/bitops.c
+++ b/arch/parisc/lib/bitops.c
@@ -15,6 +15,9 @@
 arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
 	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
 };
+arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
+	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
+};
 #endif
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/math-emu/decode_exc.c b/arch/parisc/math-emu/decode_exc.c
index 3ca1c61..27a7492 100644
--- a/arch/parisc/math-emu/decode_exc.c
+++ b/arch/parisc/math-emu/decode_exc.c
@@ -342,6 +342,7 @@ decode_fpu(unsigned int Fpu_register[], unsigned int trap_counts[])
 		return SIGNALCODE(SIGFPE, FPE_FLTINV);
 	  case DIVISIONBYZEROEXCEPTION:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
+		Clear_excp_register(exception_index);
 	  	return SIGNALCODE(SIGFPE, FPE_FLTDIV);
 	  case INEXACTEXCEPTION:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);

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Subject: Re: threads and fork on machine with VIPT-WB cache
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n Sun, May 9, 2010 at 8:43 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> Attached is my latest 2.6.33.3 patch bundle. =A0It uses a slightly mo=
dified
> version of James' minifail fix.
>
> The big change is the management of PTE updates and the TLB exception
> support on SMP configs. =A0I have modified what was formerly the pa_d=
bit_lock
> and used it for all user page table updates. =A0I also added a rechec=
k of the
> PTE after TLB inserts. =A0The idea for this was derived from a simila=
r check
> in arch/ia64/kernel/ivt.S. =A0I also whack the TLB page in ptep_set_w=
rprotect
> and modified the TLB locking for clear_user_page (it's now in asm).
>
> So far, the change is lightly tested. =A0I've been burned enough to k=
now
> that there are likely still problems. =A0However, so far I haven't se=
en any
> random segvs on my rp3440 or gsyprf11.
>
> I would appreciate pa'ers testing this change. =A0If it looks good, I=
'll
> extract the new PTE handling and formally submit.

Thanks Dave! I'll run this through the glibc testsuite a couple of
times to see if anything shakes out.

Cheers,
Carlos.
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From: "Helge Deller" <deller@gmx.de>
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Subject: Re: threads and fork on machine with VIPT-WB cache
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> Attached is my latest 2.6.33.3 patch bundle.  It uses a slightly modi=
fied
> version of James' minifail fix.

Thanks Dave!

I ran the patch my usual way (SMP kernel, on top of 2.6.33.3, multiple =
screens, minifail_dave.cpp testcase).
In summary I got after 10 seconds 2 segfaults, and in all of the screen=
s the minifail_dave testcases just hang.

"ps -ef" gives this:
root      2018     1  0 11:29 ?        00:00:00 SCREEN

root      2019  2018  0 11:29 pts/1    00:00:01 /bin/bash

root      2623  2019  0 11:30 pts/1    00:00:00 ./minifail_dave

root      2625  2623  0 11:30 pts/1    00:00:00 [minifail_dave] <defunc=
t>


ls3017:~# strace -p 2623

Process 2623 attached - interrupt to quit

futex(0x4113c4e8, FUTEX_WAIT, 2624, NULL^C <unfinished ...>

Process 2623 detached

ls3017:~# strace -p 2625

attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted


Interestingly, I got only 2 segfaults but 10 screens/minifails were run=
ning (and all were zombies).
This means to me, that the segfaults and the zombie/futex-waits are mos=
t likely unrelated.

Helge
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From - Thu Nov 08 21:05:56 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: threads and fork on machine with VIPT-WB cache
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Cc: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
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	linux-parisc@vger.kernel.org
To: Helge Deller <deller@gmx.de>
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On Mon, 10 May 2010, Helge Deller wrote:

> > Attached is my latest 2.6.33.3 patch bundle.  It uses a slightly modified
> > version of James' minifail fix.
> 
> Thanks Dave!
> 
> I ran the patch my usual way (SMP kernel, on top of 2.6.33.3, multiple screens, minifail_dave.cpp testcase).
> In summary I got after 10 seconds 2 segfaults, and in all of the screens the minifail_dave testcases just hang.

Yes, just after sending, I noticed gcc testsuite and minifail were
broken on gsyprf11.  I did modify James' change a bit because I
thought we had a double flush in kunmap on machines that don't require
coherency.  However, I think the minifail problem is with parisc_kmap.
Possibly, it needs to handle non-current contexts.

The attached works better on gsyprf11.  I haven't tested it on anything
else.

It goes back to the original flush scheme which requires some modification
to the pte_set_wrprotect api.  There might be some race issues in the
write protect and cache flush.  That's why I added the preempt_disable/
preempt_enable.  I think the api can be changed without affecting other
backends.  Also, I think cache flushes can be minimized by checking
pte_dirty after the page is write protected.

If this doesn't work, I think copy_user_page will have to use
equivalent aliasing for copy_user_page.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 716634d..ad7df44 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -24,29 +24,46 @@
  * Hash function to index into a different SPINLOCK.
  * Since "a" is usually an address, use one spinlock per cacheline.
  */
-#  define ATOMIC_HASH_SIZE 4
-#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_HASH_SIZE (4096/L1_CACHE_BYTES)  /* 4 */
+#  define ATOMIC_HASH(a)      (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_USER_HASH(a) (&(__atomic_user_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
 
 extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
+extern arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 
 /* Can't use raw_spin_lock_irq because of #include problems, so
  * this is the substitute */
-#define _atomic_spin_lock_irqsave(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);		\
+#define _atomic_spin_lock_irqsave_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;		\
 	local_irq_save(f);			\
 	arch_spin_lock(s);			\
 } while(0)
 
-#define _atomic_spin_unlock_irqrestore(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);			\
+#define _atomic_spin_unlock_irqrestore_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;			\
 	arch_spin_unlock(s);				\
 	local_irq_restore(f);				\
 } while(0)
 
+/* kernel memory locks */
+#define _atomic_spin_lock_irqsave(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_HASH(l))
+
+/* userspace memory locks */
+#define _atomic_spin_lock_irqsave_user(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_USER_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore_user(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_USER_HASH(l))
 
 #else
 #  define _atomic_spin_lock_irqsave(l,f) do { local_irq_save(f); } while (0)
 #  define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
+#  define _atomic_spin_lock_irqsave_user(l,f) _atomic_spin_lock_irqsave(l,f)
+#  define _atomic_spin_unlock_irqrestore_user(l,f) _atomic_spin_unlock_irqrestore(l,f)
 #endif
 
 /* This should get optimized out since it's never called.
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7a73b61..89dce4f 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -2,6 +2,7 @@
 #define _PARISC_CACHEFLUSH_H
 
 #include <linux/mm.h>
+#include <linux/uaccess.h>
 
 /* The usual comment is "Caches aren't brain-dead on the <architecture>".
  * Unfortunately, that doesn't apply to PA-RISC. */
@@ -113,12 +114,22 @@ static inline void *kmap(struct page *page)
 
 #define kunmap(page)			kunmap_parisc(page_address(page))
 
-#define kmap_atomic(page, idx)		page_address(page)
+static inline void *kmap_atomic(struct page *page, enum km_type idx)
+{
+	pagefault_disable();
+	return page_address(page);
+}
 
-#define kunmap_atomic(addr, idx)	kunmap_parisc(addr)
+static inline void kunmap_atomic(void *addr, enum km_type idx)
+{
+	kunmap_parisc(addr);
+	pagefault_enable();
+}
 
-#define kmap_atomic_pfn(pfn, idx)	page_address(pfn_to_page(pfn))
-#define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
+#define kmap_atomic_prot(page, idx, prot)	kmap_atomic(page, idx)
+#define kmap_atomic_pfn(pfn, idx)	kmap_atomic(pfn_to_page(pfn), (idx))
+#define kmap_atomic_to_page(ptr)	virt_to_page(kmap_atomic(virt_to_page(ptr), (enum km_type) 0))
+#define kmap_flush_unused()	do {} while(0)
 #endif
 
 #endif /* _PARISC_CACHEFLUSH_H */
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 0c705c3..7bc963e 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -55,6 +55,7 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 {
 	int err = 0;
 	int uval;
+	unsigned long flags;
 
 	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
 	 * our gateway page, and causes no end of trouble...
@@ -65,10 +66,15 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
 		return -EFAULT;
 
+	_atomic_spin_lock_irqsave_user(uaddr, flags);
+
 	err = get_user(uval, uaddr);
-	if (err) return -EFAULT;
-	if (uval == oldval)
-		err = put_user(newval, uaddr);
+	if (!err)
+		if (uval == oldval)
+			err = put_user(newval, uaddr);
+
+	_atomic_spin_unlock_irqrestore_user(uaddr, flags);
+
 	if (err) return -EFAULT;
 	return uval;
 }
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index a27d2e2..f2d8866 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -30,15 +30,21 @@
  */
 #define kern_addr_valid(addr)	(1)
 
+extern spinlock_t pa_pte_lock;
+extern spinlock_t pa_tlb_lock;
+
 /* Certain architectures need to do special things when PTEs
  * within a page table are directly modified.  Thus, the following
  * hook is made available.
  */
-#define set_pte(pteptr, pteval)                                 \
-        do{                                                     \
+#define set_pte(pteptr, pteval)					\
+        do {							\
+		unsigned long flags;				\
+		spin_lock_irqsave(&pa_pte_lock, flags);		\
                 *(pteptr) = (pteval);                           \
+		spin_unlock_irqrestore(&pa_pte_lock, flags);	\
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+#define set_pte_at(mm,addr,ptep,pteval)	set_pte(ptep, pteval)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -262,6 +268,7 @@ extern unsigned long *empty_zero_page;
 #define pte_none(x)     ((pte_val(x) == 0) || (pte_val(x) & _PAGE_FLUSH))
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
 #define pte_clear(mm,addr,xp)	do { pte_val(*(xp)) = 0; } while (0)
+#define pte_same(A,B)	(pte_val(A) == pte_val(B))
 
 #define pmd_flag(x)	(pmd_val(x) & PxD_FLAG_MASK)
 #define pmd_address(x)	((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
@@ -410,6 +417,7 @@ extern void paging_init (void);
 
 #define PG_dcache_dirty         PG_arch_1
 
+extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn);
 extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
 
 /* Encode and de-code a swap entry */
@@ -423,56 +431,85 @@ extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
 #define __pte_to_swp_entry(pte)		((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x)		((pte_t) { (x).val })
 
-static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+static inline void __flush_tlb_page(struct mm_struct *mm, unsigned long addr)
 {
-#ifdef CONFIG_SMP
-	if (!pte_young(*ptep))
-		return 0;
-	return test_and_clear_bit(xlate_pabit(_PAGE_ACCESSED_BIT), &pte_val(*ptep));
-#else
-	pte_t pte = *ptep;
-	if (!pte_young(pte))
-		return 0;
-	set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte));
-	return 1;
-#endif
+	unsigned long flags;
+
+	/* For one page, it's not worth testing the split_tlb variable.  */
+	spin_lock_irqsave(&pa_tlb_lock, flags);
+	mtsp(mm->context,1);
+	pdtlb(addr);
+	pitlb(addr);
+	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 }
 
-extern spinlock_t pa_dbit_lock;
+static inline int ptep_set_access_flags(struct vm_area_struct *vma, unsigned
+ long addr, pte_t *ptep, pte_t entry, int dirty)
+{
+	int changed;
+	unsigned long flags;
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	changed = !pte_same(*ptep, entry);
+	if (changed) {
+		*ptep = entry;
+	}
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
+	if (changed) {
+		__flush_tlb_page(vma->vm_mm, addr);
+	}
+	return changed;
+}
+
+static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+{
+	pte_t pte;
+	unsigned long flags;
+	int r;
+
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	pte = *ptep;
+	if (pte_young(pte)) {
+		*ptep = pte_mkold(pte);
+		r = 1;
+	} else {
+		r = 0;
+	}
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
+
+	return r;
+}
 
 struct mm_struct;
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-	pte_t old_pte;
-	pte_t pte;
+	pte_t pte, old_pte;
+	unsigned long flags;
 
-	spin_lock(&pa_dbit_lock);
+	spin_lock_irqsave(&pa_pte_lock, flags);
 	pte = old_pte = *ptep;
 	pte_val(pte) &= ~_PAGE_PRESENT;
 	pte_val(pte) |= _PAGE_FLUSH;
-	set_pte_at(mm,addr,ptep,pte);
-	spin_unlock(&pa_dbit_lock);
+	*ptep = pte;
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
 
 	return old_pte;
 }
 
-static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+static inline void ptep_set_wrprotect(struct vm_area_struct *vma, struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-#ifdef CONFIG_SMP
-	unsigned long new, old;
-
-	do {
-		old = pte_val(*ptep);
-		new = pte_val(pte_wrprotect(__pte (old)));
-	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
-#else
-	pte_t old_pte = *ptep;
-	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
-#endif
+	pte_t old_pte;
+	unsigned long flags;
+
+	preempt_disable();
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	old_pte = *ptep;
+	*ptep = pte_wrprotect(old_pte);
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
+	__flush_tlb_page(mm, addr);
+	flush_cache_page(vma, addr, pte_pfn(old_pte));
+	preempt_enable();
 }
 
-#define pte_same(A,B)	(pte_val(A) == pte_val(B))
-
 #endif /* !__ASSEMBLY__ */
 
 
@@ -504,6 +541,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 
 #define HAVE_ARCH_UNMAPPED_AREA
 
+#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
index d91357b..4653c77 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -160,7 +160,7 @@ static inline void set_eiem(unsigned long val)
    ldcd). */
 
 #define __PA_LDCW_ALIGNMENT	4
-#define __ldcw_align(a) ((volatile unsigned int *)a)
+#define __ldcw_align(a) (&(a)->slock)
 #define __LDCW	"ldcw,co"
 
 #endif /*!CONFIG_PA20*/
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index ec787b4..b2f35b2 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -137,6 +137,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -225,6 +226,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
@@ -290,5 +292,11 @@ int main(void)
 	BLANK();
 	DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
 	BLANK();
+
+#ifdef CONFIG_SMP
+	DEFINE(ASM_ATOMIC_HASH_SIZE_SHIFT, __builtin_ffs(ATOMIC_HASH_SIZE)-1);
+	DEFINE(ASM_ATOMIC_HASH_ENTRY_SHIFT, __builtin_ffs(sizeof(__atomic_hash[0]))-1);
+#endif
+
 	return 0;
 }
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index b6ed34d..67241ac 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -395,15 +395,12 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
+static void clear_user_page_asm(void *page, unsigned long vaddr)
 {
-	unsigned long flags;
 	/* This function is implemented in assembly in pacache.S */
 	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
 
-	purge_tlb_start(flags);
 	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
 }
 
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
@@ -440,7 +437,6 @@ void __init parisc_setup_cache_timing(void)
 }
 
 extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
 
 void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 {
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3a44f7f..e1c0128 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -45,7 +45,7 @@
 	.level 2.0
 #endif
 
-	.import         pa_dbit_lock,data
+	.import         pa_pte_lock,data
 
 	/* space_to_prot macro creates a prot id from a space id */
 
@@ -364,32 +364,6 @@
 	.align		32
 	.endm
 
-	/* The following are simple 32 vs 64 bit instruction
-	 * abstractions for the macros */
-	.macro		EXTR	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	extrd,u		\reg1,32+(\start),\length,\reg2
-#else
-	extrw,u		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEP	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	depd		\reg1,32+(\start),\length,\reg2
-#else
-	depw		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEPI	val,start,length,reg
-#ifdef CONFIG_64BIT
-	depdi		\val,32+(\start),\length,\reg
-#else
-	depwi		\val,\start,\length,\reg
-#endif
-	.endm
-
 	/* In LP64, the space contains part of the upper 32 bits of the
 	 * fault.  We have to extract this and place it in the va,
 	 * zeroing the corresponding bits in the space register */
@@ -442,19 +416,19 @@
 	 */
 	.macro		L2_ptep	pmd,pte,index,va,fault
 #if PT_NLEVELS == 3
-	EXTR		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
+	extru		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
 #else
-	EXTR		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
+	extru		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 #endif
-	DEP             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	dep             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	copy		%r0,\pte
 	ldw,s		\index(\pmd),\pmd
 	bb,>=,n		\pmd,_PxD_PRESENT_BIT,\fault
-	DEP		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
+	dep		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
 	copy		\pmd,%r9
 	SHLREG		%r9,PxD_VALUE_SHIFT,\pmd
-	EXTR		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
-	DEP		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	extru		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
+	dep		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
 	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
 	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
@@ -488,13 +462,44 @@
 	L2_ptep		\pgd,\pte,\index,\va,\fault
 	.endm
 
+	/* SMP lock for consistent PTE updates.  Unlocks and jumps
+	   to FAULT if the page is not present.  Note the preceeding
+	   load of the PTE can't be deleted since we can't fault holding
+	   the lock.  */ 
+	.macro		pte_lock	ptep,pte,spc,tmp,tmp1,fault
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n        0,\spc,2f
+	load32		PA(pa_pte_lock),\tmp1
+1:
+	LDCW		0(\tmp1),\tmp
+	cmpib,COND(=)         0,\tmp,1b
+	nop
+	LDREG		%r0(\ptep),\pte
+	bb,<,n		\pte,_PAGE_PRESENT_BIT,2f
+	ldi             1,\tmp
+	stw             \tmp,0(\tmp1)
+	b,n		\fault
+2:
+#endif
+	.endm
+
+	.macro		pte_unlock	spc,tmp,tmp1
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n        0,\spc,1f
+	ldi             1,\tmp
+	stw             \tmp,0(\tmp1)
+1:
+#endif
+	.endm
+
 	/* Set the _PAGE_ACCESSED bit of the PTE.  Be clever and
 	 * don't needlessly dirty the cache line if it was already set */
-	.macro		update_ptep	ptep,pte,tmp,tmp1
-	ldi		_PAGE_ACCESSED,\tmp1
-	or		\tmp1,\pte,\tmp
-	and,COND(<>)	\tmp1,\pte,%r0
-	STREG		\tmp,0(\ptep)
+	.macro		update_ptep	ptep,pte,tmp
+	bb,<,n		\pte,_PAGE_ACCESSED_BIT,1f
+	ldi		_PAGE_ACCESSED,\tmp
+	or		\tmp,\pte,\pte
+	STREG		\pte,0(\ptep)
+1:
 	.endm
 
 	/* Set the dirty bit (and accessed bit).  No need to be
@@ -605,7 +610,7 @@
 	depdi		0,31,32,\tmp
 #endif
 	copy		\va,\tmp1
-	DEPI		0,31,23,\tmp1
+	depi		0,31,23,\tmp1
 	cmpb,COND(<>),n	\tmp,\tmp1,\fault
 	ldi		(_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot
 	depd,z		\prot,8,7,\prot
@@ -622,6 +627,39 @@
 	or		%r26,%r0,\pte
 	.endm 
 
+	/* Save PTE for recheck if SMP.  */
+	.macro		save_pte	pte,tmp
+#ifdef CONFIG_SMP
+	copy		\pte,\tmp
+#endif
+	.endm
+
+	/* Reload the PTE and purge the data TLB entry if the new
+	   value is different from the old one.  */
+	.macro		dtlb_recheck	ptep,old_pte,spc,va,tmp
+#ifdef CONFIG_SMP
+	LDREG		%r0(\ptep),\tmp
+	cmpb,COND(=),n	\old_pte,\tmp,1f
+	mfsp		%sr1,\tmp
+	mtsp		\spc,%sr1
+	pdtlb,l		%r0(%sr1,\va)
+	mtsp		\tmp,%sr1
+1:
+#endif
+	.endm
+
+	.macro		itlb_recheck	ptep,old_pte,spc,va,tmp
+#ifdef CONFIG_SMP
+	LDREG		%r0(\ptep),\tmp
+	cmpb,COND(=),n	\old_pte,\tmp,1f
+	mfsp		%sr1,\tmp
+	mtsp		\spc,%sr1
+	pitlb,l		%r0(%sr1,\va)
+	mtsp		\tmp,%sr1
+1:
+#endif
+	.endm
+
 
 	/*
 	 * Align fault_vector_20 on 4K boundary so that both
@@ -758,6 +796,10 @@ ENTRY(__kernel_thread)
 
 	STREG	%r22, PT_GR22(%r1)	/* save r22 (arg5) */
 	copy	%r0, %r22		/* user_tid */
+	copy	%r0, %r21		/* child_tid */
+#else
+	stw	%r0, -52(%r30)	     	/* user_tid */
+	stw	%r0, -56(%r30)	     	/* child_tid */
 #endif
 	STREG	%r26, PT_GR26(%r1)  /* Store function & argument for child */
 	STREG	%r25, PT_GR25(%r1)
@@ -765,7 +807,7 @@ ENTRY(__kernel_thread)
 	ldo	CLONE_VM(%r26), %r26   /* Force CLONE_VM since only init_mm */
 	or	%r26, %r24, %r26      /* will have kernel mappings.	 */
 	ldi	1, %r25			/* stack_start, signals kernel thread */
-	stw	%r0, -52(%r30)	     	/* user_tid */
+	ldi	0, %r23			/* child_stack_size */
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
@@ -972,7 +1014,10 @@ intr_check_sig:
 	BL	do_notify_resume,%r2
 	copy	%r16, %r26			/* struct pt_regs *regs */
 
-	b,n	intr_check_sig
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 intr_restore:
 	copy            %r16,%r29
@@ -997,13 +1042,6 @@ intr_restore:
 
 	rfi
 	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
 
 #ifndef CONFIG_PREEMPT
 # define intr_do_preempt	intr_restore
@@ -1026,14 +1064,12 @@ intr_do_resched:
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	ldil	L%intr_check_sig, %r2
-#ifndef CONFIG_64BIT
-	b	schedule
-#else
-	load32	schedule, %r20
-	bv	%r0(%r20)
-#endif
-	ldo	R%intr_check_sig(%r2), %r2
+	BL	schedule,%r2
+	nop
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 	/* preempt the current task on returning to kernel
 	 * mode from an interrupt, iff need_resched is set,
@@ -1214,11 +1250,14 @@ dtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,dtlb_check_alias_20w
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,dtlb_check_alias_20w
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-	
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1238,11 +1277,10 @@ nadtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,nadtlb_check_flush_20w
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1272,8 +1310,11 @@ dtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_11
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,dtlb_check_alias_11
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
@@ -1283,6 +1324,7 @@ dtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1321,11 +1363,9 @@ nadtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_11
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
-
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
@@ -1333,6 +1373,7 @@ nadtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1368,13 +1409,17 @@ dtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_20
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,dtlb_check_alias_20
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1394,13 +1439,13 @@ nadtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_20
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 	
         idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1508,11 +1553,14 @@ itlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,itlb_fault
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-	
 	iitlbt          pte,prot
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1526,8 +1574,11 @@ itlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,itlb_fault
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
@@ -1537,6 +1588,7 @@ itlb_miss_11:
 	iitlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1548,13 +1600,17 @@ itlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,itlb_fault
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0	
 
 	iitlbt          pte,prot
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1570,29 +1626,14 @@ dbit_trap_20w:
 
 	L3_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20w
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20w:
-	LDCW		0(t0),t1
-	cmpib,COND(=)         0,t1,dbit_spin_20w
-	nop
-
-dbit_nolock_20w:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-		
 	idtlbt          pte,prot
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20w
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20w:
-#endif
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1606,35 +1647,21 @@ dbit_trap_11:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_11
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_11:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_11
-	nop
-
-dbit_nolock_11:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
-	mfsp            %sr1,t1  /* Save sr1 so we can use it in tlb inserts */
+	mfsp            %sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
 	idtlba		pte,(%sr1,va)
 	idtlbp		prot,(%sr1,va)
 
-	mtsp            t1, %sr1     /* Restore sr1 */
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_11
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_11:
-#endif
+	mtsp            t0, %sr1     /* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1646,32 +1673,17 @@ dbit_trap_20:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_20
-	nop
-
-dbit_nolock_20:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
-	f_extend	pte,t1
+	f_extend	pte,t0
 	
         idtlbt          pte,prot
-
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20:
-#endif
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1772,9 +1784,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1804,7 +1816,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1823,8 +1835,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1847,7 +1860,9 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
@@ -2076,9 +2091,10 @@ syscall_restore:
 	LDREG	TASK_PT_GR31(%r1),%r31	   /* restore syscall rp */
 
 	/* NOTE: We use rsm/ssm pair to make this operation atomic */
+	LDREG   TASK_PT_GR30(%r1),%r1              /* Get user sp */
 	rsm     PSW_SM_I, %r0
-	LDREG   TASK_PT_GR30(%r1),%r30             /* restore user sp */
-	mfsp	%sr3,%r1			   /* Get users space id */
+	copy    %r1,%r30                           /* Restore user sp */
+	mfsp    %sr3,%r1                           /* Get user space id */
 	mtsp    %r1,%sr7                           /* Restore sr7 */
 	ssm     PSW_SM_I, %r0
 
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 09b77b2..4f0d975 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -277,6 +277,7 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
+#if 1
 ENTRY(copy_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
@@ -400,6 +401,7 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
+#endif
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -548,17 +550,33 @@ ENTRY(__clear_user_page_asm)
 	depwi		0, 31,12, %r28		/* Clear any offset bits */
 #endif
 
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock, %r1
+	ldo		R%pa_tlb_lock(%r1), %r24
+	rsm		PSW_SM_I, %r22
+1:
+	LDCW		0(%r24),%r25
+	cmpib,COND(=)	0,%r25,1b
+	nop
+#endif
+
 	/* Purge any old translation */
 
 	pdtlb		0(%r28)
 
+#ifdef CONFIG_SMP
+	ldi		1,%r25
+	stw		%r25,0(%r24)
+	mtsm		%r22
+#endif
+
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
 
 	/* PREFETCH (Write) has not (yet) been proven to help here */
 	/* #define	PREFETCHW_OP	ldd		256(%0), %r0 */
 
-1:	std		%r0, 0(%r28)
+2:	std		%r0, 0(%r28)
 	std		%r0, 8(%r28)
 	std		%r0, 16(%r28)
 	std		%r0, 24(%r28)
@@ -574,13 +592,13 @@ ENTRY(__clear_user_page_asm)
 	std		%r0, 104(%r28)
 	std		%r0, 112(%r28)
 	std		%r0, 120(%r28)
-	addib,COND(>)		-1, %r1, 1b
+	addib,COND(>)		-1, %r1, 2b
 	ldo		128(%r28), %r28
 
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
+2:
 	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
@@ -597,7 +615,7 @@ ENTRY(__clear_user_page_asm)
 	stw		%r0, 52(%r28)
 	stw		%r0, 56(%r28)
 	stw		%r0, 60(%r28)
-	addib,COND(>)		-1, %r1, 1b
+	addib,COND(>)		-1, %r1, 2b
 	ldo		64(%r28), %r28
 #endif	/* CONFIG_64BIT */
 
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index cb71f3d..84b3239 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -128,6 +128,14 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_INFO "The 32-bit Kernel has started...\n");
 #endif
 
+	/* Consistency check on the size and alignments of our spinlocks */
+#ifdef CONFIG_SMP
+	BUILD_BUG_ON(sizeof(arch_spinlock_t) != __PA_LDCW_ALIGNMENT);
+	BUG_ON((unsigned long)&__atomic_hash[0] & (__PA_LDCW_ALIGNMENT-1));
+	BUG_ON((unsigned long)&__atomic_hash[1] & (__PA_LDCW_ALIGNMENT-1));
+#endif
+	BUILD_BUG_ON((1<<L1_CACHE_SHIFT) != L1_CACHE_BYTES);
+
 	pdc_console_init();
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f5f9602..68e75ce 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -47,18 +47,17 @@ ENTRY(linux_gateway_page)
 	KILL_INSN
 	.endr
 
-	/* ADDRESS 0xb0 to 0xb4, lws uses 1 insns for entry */
+	/* ADDRESS 0xb0 to 0xb8, lws uses two insns for entry */
 	/* Light-weight-syscall entry must always be located at 0xb0 */
 	/* WARNING: Keep this number updated with table size changes */
 #define __NR_lws_entries (2)
 
 lws_entry:
-	/* Unconditional branch to lws_start, located on the 
-	   same gateway page */
-	b,n	lws_start
+	gate	lws_start, %r0		/* increase privilege */
+	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
 
-	/* Fill from 0xb4 to 0xe0 */
-	.rept 11
+	/* Fill from 0xb8 to 0xe0 */
+	.rept 10
 	KILL_INSN
 	.endr
 
@@ -423,9 +422,6 @@ tracesys_sigexit:
 
 	*********************************************************/
 lws_start:
-	/* Gate and ensure we return to userspace */
-	gate	.+8, %r0
-	depi	3, 31, 2, %r31	/* Ensure we return to userspace */
 
 #ifdef CONFIG_64BIT
 	/* FIXME: If we are a 64-bit kernel just
@@ -442,7 +438,7 @@ lws_start:
 #endif	
 
         /* Is the lws entry number valid? */
-	comiclr,>>=	__NR_lws_entries, %r20, %r0
+	comiclr,>>	__NR_lws_entries, %r20, %r0
 	b,n	lws_exit_nosys
 
 	/* WARNING: Trashing sr2 and sr3 */
@@ -473,7 +469,7 @@ lws_exit:
 	/* now reset the lowest bit of sp if it was set */
 	xor	%r30,%r1,%r30
 #endif
-	be,n	0(%sr3, %r31)
+	be,n	0(%sr7, %r31)
 
 
 	
@@ -529,7 +525,6 @@ lws_compare_and_swap32:
 #endif
 
 lws_compare_and_swap:
-#ifdef CONFIG_SMP
 	/* Load start of lock table */
 	ldil	L%lws_lock_start, %r20
 	ldo	R%lws_lock_start(%r20), %r28
@@ -572,8 +567,6 @@ cas_wouldblock:
 	ldo	2(%r0), %r28				/* 2nd case */
 	b	lws_exit				/* Contended... */
 	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
-#endif
-/* CONFIG_SMP */
 
 	/*
 		prev = *addr;
@@ -601,13 +594,11 @@ cas_action:
 1:	ldw	0(%sr3,%r26), %r28
 	sub,<>	%r28, %r25, %r0
 2:	stw	%r24, 0(%sr3,%r26)
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	/* Clear thread register indicator */
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	/* Return to userspace, set no error */
 	b	lws_exit
@@ -615,12 +606,10 @@ cas_action:
 
 3:		
 	/* Error occured on load or store */
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	b	lws_exit
 	ldo	-EFAULT(%r0),%r21	/* set errno */
@@ -672,7 +661,6 @@ ENTRY(sys_call_table64)
 END(sys_call_table64)
 #endif
 
-#ifdef CONFIG_SMP
 	/*
 		All light-weight-syscall atomic operations 
 		will use this set of locks 
@@ -694,8 +682,6 @@ ENTRY(lws_lock_start)
 	.endr
 END(lws_lock_start)
 	.previous
-#endif
-/* CONFIG_SMP for lws_lock_start */
 
 .end
 
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 8b58bf0..804b024 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -47,7 +47,7 @@
 			  /*  dumped to the console via printk)          */
 
 #if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
-DEFINE_SPINLOCK(pa_dbit_lock);
+DEFINE_SPINLOCK(pa_pte_lock);
 #endif
 
 static void parisc_show_stack(struct task_struct *task, unsigned long *sp,
diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c
index 353963d..bae6a86 100644
--- a/arch/parisc/lib/bitops.c
+++ b/arch/parisc/lib/bitops.c
@@ -15,6 +15,9 @@
 arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
 	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
 };
+arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
+	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
+};
 #endif
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/math-emu/decode_exc.c b/arch/parisc/math-emu/decode_exc.c
index 3ca1c61..27a7492 100644
--- a/arch/parisc/math-emu/decode_exc.c
+++ b/arch/parisc/math-emu/decode_exc.c
@@ -342,6 +342,7 @@ decode_fpu(unsigned int Fpu_register[], unsigned int trap_counts[])
 		return SIGNALCODE(SIGFPE, FPE_FLTINV);
 	  case DIVISIONBYZEROEXCEPTION:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
+		Clear_excp_register(exception_index);
 	  	return SIGNALCODE(SIGFPE, FPE_FLTDIV);
 	  case INEXACTEXCEPTION:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
diff --git a/mm/memory.c b/mm/memory.c
index 09e4b1b..21c2916 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -616,7 +616,7 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	 * in the parent and the child
 	 */
 	if (is_cow_mapping(vm_flags)) {
-		ptep_set_wrprotect(src_mm, addr, src_pte);
+		ptep_set_wrprotect(vma, src_mm, addr, src_pte);
 		pte = pte_wrprotect(pte);
 	}
 

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From - Thu Nov 08 21:05:56 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: threads and fork on machine with VIPT-WB cache
Date: Mon, 10 May 2010 21:20:34 +0200
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References: <20100412214118.46D925160@hiauly1.hia.nrc.ca> <20100413115501.307040@gmx.net> <20100419162653.GA106@hiauly1.hia.nrc.ca> <4BCDEB6E.1060408@gmx.de> <20100509124339.GA6797@hiauly1.hia.nrc.ca> <20100510095632.173760@gmx.net> <20100510145648.GA13452@hiauly1.hia.nrc.ca>
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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	linux-parisc@vger.kernel.org
To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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On 05/10/2010 04:56 PM, John David Anglin wrote:
> Yes, just after sending, I noticed gcc testsuite and minifail were
> broken on gsyprf11.  [...]
> 
> The attached works better on gsyprf11.  I haven't tested it on anything
> else.

Hi Dave,

Ugh... :-(
At boot I get:
...
INIT: Entering runlevel: 2

Starting enhanced syslogd: rsyslogd.

Starting system message bus: dbuseth0: Setting full-duplex based on MII#1 link partner capability of 41e1.

Starting OpenBSD Secure Shell server: sshd


Backtrace:


High Priority Machine Check (HPMC): Code=1 regs=106f5080 (Addr=00000000)

Kernel panic - not syncing: High Priority Machine Check (HPMC)

Backtrace:

 [<1011ebc4>] show_stack+0x18/0x28

 [<10117b90>] dump_stack+0x1c/0x2c

 [<10117c18>] panic+0x78/0x1e8

 [<1011f134>] parisc_terminate+0xe4/0xfc

 [<1011f504>] handle_interruption+0x1f0/

I'm not sure if this relates to your patch though...

Anyway, the machine is located at work and I can't restart it remotely.
I'll test it again tomorrow...

Helge
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From - Thu Nov 08 21:05:56 2018
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From: Helge Deller <deller@gmx.de>
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Subject: futex.c and EWOULDBLOCK vs. EAGAIN patch
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Since PARISC is the only Linux architecture which has different values
for EAGAIN and EWOULDBLOCK, we are running in various issues.

One of them is, that e.g. glibc checks for EAGAIN instead of EWOULDBLOCK
(and vise versa) in nptl/pthread_mutex_trylock.c. This doesn't hurt
other architectures, but it hurts parisc.

I was planning to send the patch below to linux kernel mailing list.
But before I do it, I would like to get feedback from the kernel
hackers here on the list.

What do you think?
Is this patch useful?
Or will people just call me an idiot if I ask if this patch could be applied?
If you think it's useful, maybe another patch description would be more appropriate?

Any feedback is welcome...

Helge

-----------------------
[PATCH] futex.c: return EAGAIN instead of EWOULDBLOCK

Patch summary:
In the Linux kernel all architectures beside the PARISC architecture 
define EWOULDBLOCK as EAGAIN:

arch/sparc/include/asm/errno.h:#define  EWOULDBLOCK     EAGAIN  /* Operation would block */
arch/mips/include/asm/errno.h:#define   EWOULDBLOCK     EAGAIN  /* Operation would block */
arch/alpha/include/asm/errno.h:#define  EWOULDBLOCK     EAGAIN  /* Operation would block */
include/asm-generic/errno.h:#define     EWOULDBLOCK     EAGAIN  /* Operation would block */

The only exception is PARISC, which tries to keep HP-UX compatibility:
arch/parisc/include/asm/errno.h:#define EWOULDBLOCK     246     /* Operation would block (Linux returns EAGAIN) */

This difference leads to various problems with userspace, which often 
thinks that EWOULDBLOCK and EGAIN are of the same value. To avoid problems
userspace sometimes has to check the return value for both values.

The following patch cleans up the Linux kernel futex implementation to
always return EAGAIN instead of EWOULDBLOCK.
Binary compatibility for all architectures beside PARISC is still kept,
but on PARISC this will ease life a lot.

Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/kernel/futex.c b/kernel/futex.c
index e7a35f1..28d14ff 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1732,7 +1732,7 @@ static void futex_wait_queue_me(struct futex_hash_bucket *hb, struct futex_q *q,
  *
  * Returns:
  *  0 - uaddr contains val and hb has been locked
- * <1 - -EFAULT or -EWOULDBLOCK (uaddr does not contain val) and hb is unlcoked
+ * <1 - -EFAULT or -EAGAIN (uaddr does not contain val) and hb is unlcoked
  */
 static int futex_wait_setup(u32 __user *uaddr, u32 val, int fshared,
 			   struct futex_q *q, struct futex_hash_bucket **hb)
@@ -1784,7 +1784,7 @@ retry_private:
 
 	if (uval != val) {
 		queue_unlock(q, *hb);
-		ret = -EWOULDBLOCK;
+		ret = -EAGAIN;
 	}
 
 out:
@@ -1969,7 +1969,7 @@ retry_private:
 	else {
 		ret = rt_mutex_trylock(&q.pi_state->pi_mutex);
 		/* Fixup the trylock return value: */
-		ret = ret ? 0 : -EWOULDBLOCK;
+		ret = ret ? 0 : -EAGAIN;
 	}
 
 	spin_lock(q.lock_ptr);
@@ -2154,7 +2154,7 @@ int handle_early_requeue_pi_wakeup(struct futex_hash_bucket *hb,
 		plist_del(&q->list, &q->list.plist);
 
 		/* Handle spurious wakeups gracefully */
-		ret = -EWOULDBLOCK;
+		ret = -EAGAIN;
 		if (timeout && !timeout->task)
 			ret = -ETIMEDOUT;
 		else if (signal_pending(current))
@@ -2196,7 +2196,7 @@ int handle_early_requeue_pi_wakeup(struct futex_hash_bucket *hb,
  * 7) timeout
  * 8) other lock acquisition failure
  *
- * If 6, return -EWOULDBLOCK (restarting the syscall would do the same).
+ * If 6, return -EAGAIN (restarting the syscall would do the same).
  *
  * If 4 or 7, we cleanup and return with -ETIMEDOUT.
  *
@@ -2318,10 +2318,10 @@ static int futex_wait_requeue_pi(u32 __user *uaddr, int fshared,
 		 * We've already been requeued, but cannot restart by calling
 		 * futex_lock_pi() directly. We could restart this syscall, but
 		 * it would detect that the user space "val" changed and return
-		 * -EWOULDBLOCK.  Save the overhead of the restart and return
-		 * -EWOULDBLOCK directly.
+		 * -EAGAIN.  Save the overhead of the restart and return
+		 * -EAGAIN directly.
 		 */
-		ret = -EWOULDBLOCK;
+		ret = -EAGAIN;
 	}
 
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From - Thu Nov 08 21:05:56 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: threads and fork on machine with VIPT-WB cache
Date: Mon, 10 May 2010 17:07:12 -0400
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On Mon, 10 May 2010, Helge Deller wrote:

> On 05/10/2010 04:56 PM, John David Anglin wrote:
> > Yes, just after sending, I noticed gcc testsuite and minifail were
> > broken on gsyprf11.  [...]
> > 
> > The attached works better on gsyprf11.  I haven't tested it on anything
> > else.
> 
> Hi Dave,
> 
> Ugh... :-(
> At boot I get:
> ...
> INIT: Entering runlevel: 2
> 
> Starting enhanced syslogd: rsyslogd.
> 
> Starting system message bus: dbuseth0: Setting full-duplex based on MII#1 link partner capability of 41e1.
> 
> Starting OpenBSD Secure Shell server: sshd

I'll do a little more testing tonight.  In testing, I have had a
couple of boot failures on gsyprf11 starting iptables.  Haven't
seen any hpmc's starting sshd.

If you find the location of the hpmc is in code modified by change,
that would be useful information.  Possibly, there is an issue with
the pdtlb,l instruction.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: threads and fork on machine with VIPT-WB cache
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On Mon, 10 May 2010, John David Anglin wrote:

> I'll do a little more testing tonight.  In testing, I have had a
> couple of boot failures on gsyprf11 starting iptables.  Haven't
> seen any hpmc's starting sshd.

It appears James' kmap change is needed on PA8800 (rp3440) for cache
coherency.  I see segmentation faults in sh with just the flush in
ptep_set_wrprotect.  I haven't had a chance to test whether the flush
in ptep_set_wrprotect is needed to fix minifail on this machine.
However, a GCC build completed successfully with the kmap change and
without the ptep_set_wrprotect flush.

On gsyprf11 (PA8700), James' kmap change doesn't fix minifail and we need
the cache flush in ptep_set_wrprotect to fix minifail.  The kmap change
causes general instability by itself.

Thus, it appears necessary to merge the two approaches and treat PA8700
and PA8800 differently.

I think we are really killing performance with the cache flushing...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 05/10/2010 09:20 PM, Helge Deller wrote:
> On 05/10/2010 04:56 PM, John David Anglin wrote:
>> Yes, just after sending, I noticed gcc testsuite and minifail were
>> broken on gsyprf11.  [...]
>>
>> The attached works better on gsyprf11.  I haven't tested it on anything
>> else.

Hi Dave,

I still can see segfaults of the minifail_dave.cpp program.

In addition I see some memory corruptions.
Those corruptions are not new due to your patch, I could see them with
other patches (and maybe even plain 2.6.32.3 kernel) as well...

pagealloc: memory corruption

6e8291c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................

6e8291d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................

6e8291e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................

6e8291f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................

Backtrace:

 [<1011ebc4>] show_stack+0x18/0x28

 [<10117b90>] dump_stack+0x1c/0x2c

 [<101c7020>] kernel_map_pages+0x2a0/0x2b8

 [<1019ebc8>] get_page_from_freelist+0x3d4/0x630

 [<1019ef58>] __alloc_pages_nodemask+0x134/0x610

 [<101b23d8>] do_wp_page+0x2c0/0xb50

 [<101b4290>] handle_mm_fault+0x514/0x844

 [<1011d870>] do_page_fault+0x1f8/0x2fc

 [<1011f400>] handle_interruption+0xec/0x730

 [<10103078>] intr_check_sig+0x0/0x40


Helge
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On 05/10/2010 11:07 PM, John David Anglin wrote:
> If you find the location of the hpmc is in code modified by change,
> that would be useful information.  Possibly, there is an issue with
> the pdtlb,l instruction.

Sadly I don't have any more info than this:

High Priority Machine Check (HPMC): Code=1 regs=106f5080 (Addr=00000000)

Kernel panic - not syncing: High Priority Machine Check (HPMC)

Backtrace:

 [<1011ebc4>] show_stack+0x18/0x28

 [<10117b90>] dump_stack+0x1c/0x2c

 [<10117c18>] panic+0x78/0x1e8

 [<1011f134>] parisc_terminate+0xe4/0xfc

 [<1011f504>] handle_interruption+0x1f0/0x730

 [<10103078>] intr_check_sig+0x0/0x40


The second time the kernel did booted without problems, even though
I didn't changed anything.

Helge
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To: deller@gmx.de (Helge Deller)
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> On 05/10/2010 09:20 PM, Helge Deller wrote:
> > On 05/10/2010 04:56 PM, John David Anglin wrote:
> >> Yes, just after sending, I noticed gcc testsuite and minifail were
> >> broken on gsyprf11.  [...]
> >>
> >> The attached works better on gsyprf11.  I haven't tested it on anything
> >> else.
> 
> Hi Dave,
> 
> I still can see segfaults of the minifail_dave.cpp program.
> 
> In addition I see some memory corruptions.
> Those corruptions are not new due to your patch, I could see them with
> other patches (and maybe even plain 2.6.32.3 kernel) as well...
> 
> pagealloc: memory corruption

I haven't seen this.  Which allocator are you using?  I have
CONFIG_SLAB=y.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:57 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: threads and fork on machine with VIPT-WB cache
Date: Tue, 11 May 2010 17:39:02 -0400 (EDT)
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> On gsyprf11 (PA8700), James' kmap change doesn't fix minifail and we need
> the cache flush in ptep_set_wrprotect to fix minifail.  The kmap change
> causes general instability by itself.

I'm going to merge the two changes and see what happens.  With just
the flush in ptep_set_wrprotect, I'm seeing some segvs in sh on
gsyprf11.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:05:57 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: threads and fork on machine with VIPT-WB cache
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This is a multi-part message in MIME format.
--------------030907020307080706030008
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

On 05/11/2010 11:26 PM, John David Anglin wrote:
>> On 05/10/2010 09:20 PM, Helge Deller wrote:
>>> On 05/10/2010 04:56 PM, John David Anglin wrote:
>>>> Yes, just after sending, I noticed gcc testsuite and minifail were
>>>> broken on gsyprf11.  [...]
>>>>
>>>> The attached works better on gsyprf11.  I haven't tested it on anything
>>>> else.
>>
>> Hi Dave,
>>
>> I still can see segfaults of the minifail_dave.cpp program.
>>
>> In addition I see some memory corruptions.
>> Those corruptions are not new due to your patch, I could see them with
>> other patches (and maybe even plain 2.6.32.3 kernel) as well...
>>
>> pagealloc: memory corruption
> 
> I haven't seen this.  Which allocator are you using?  I have
> CONFIG_SLAB=y.

Yes.
Full .config attached.

Helge

--------------030907020307080706030008
Content-Type: text/plain;
 name=".config"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename=".config"

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.33.3
# Mon May 10 20:12:09 2010
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_TIME_LOW_RES=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_IRQ_PER_CPU=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION="-32bit"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_TREE_PREEMPT_RCU is not set
# CONFIG_TINY_RCU is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=32
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
# CONFIG_GROUP_SCHED is not set
# CONFIG_CGROUPS is not set
# CONFIG_SYSFS_DEPRECATED_V2 is not set
# CONFIG_RELAY is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_LZO=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_PERF_COUNTERS is not set
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
CONFIG_COMPAT_BRK=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
# CONFIG_OPROFILE is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_USE_GENERIC_SMP_HELPERS=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_SLOW_WORK=y
# CONFIG_SLOW_WORK_DEBUG is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
# CONFIG_LBDAF is not set
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
# CONFIG_INLINE_SPIN_UNLOCK is not set
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
# CONFIG_INLINE_SPIN_UNLOCK_IRQ is not set
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
# CONFIG_INLINE_READ_UNLOCK is not set
# CONFIG_INLINE_READ_UNLOCK_BH is not set
# CONFIG_INLINE_READ_UNLOCK_IRQ is not set
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
# CONFIG_INLINE_WRITE_UNLOCK is not set
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
# CONFIG_INLINE_WRITE_UNLOCK_IRQ is not set
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
# CONFIG_MUTEX_SPIN_ON_OWNER is not set
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
# CONFIG_64BIT is not set
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=999999
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_HPUX=y
CONFIG_NR_CPUS=32

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
# CONFIG_HPPB is not set
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
# CONFIG_ISA is not set
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_PCI_LEGACY=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
CONFIG_PCCARD=y
CONFIG_PCMCIA=y
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_PCMCIA_IOCTL=y
CONFIG_CARDBUS=y

#
# PC-card bridges
#
CONFIG_YENTA=y
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
CONFIG_PD6729=y
CONFIG_I82092=y
CONFIG_PCCARD_NONSTATIC=y
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_PDC_CHASSIS is not set
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_SOM=y
CONFIG_BINFMT_MISC=m
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
CONFIG_LLC=m
CONFIG_LLC2=m
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_WIRELESS=y
CONFIG_WIRELESS_EXT=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_WEXT_SPY=y
CONFIG_WEXT_PRIV=y
# CONFIG_CFG80211 is not set
CONFIG_WIRELESS_EXT_SYSFS=y
CONFIG_LIB80211=m
CONFIG_LIB80211_CRYPT_WEP=m
CONFIG_LIB80211_CRYPT_CCMP=m
CONFIG_LIB80211_CRYPT_TKIP=m
# CONFIG_LIB80211_DEBUG is not set

#
# CFG80211 needs to be enabled for MAC80211
#
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_DEVTMPFS is not set
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=m
# CONFIG_PARPORT_SERIAL is not set
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_PC_PCMCIA=m
CONFIG_PARPORT_GSC=y
# CONFIG_PARPORT_AX88796 is not set
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
CONFIG_BLK_DEV=y
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=y

#
# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
#
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=6144
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=y

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_IDE_GD=y
CONFIG_IDE_GD_ATA=y
# CONFIG_IDE_GD_ATAPI is not set
CONFIG_BLK_DEV_IDECS=y
# CONFIG_BLK_DEV_DELKIN is not set
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8172 is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=y
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_LE_ON_BE=y
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_NSP32 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
CONFIG_SCSI_DH=y
# CONFIG_SCSI_DH_RDAC is not set
# CONFIG_SCSI_DH_HP_SW is not set
# CONFIG_SCSI_DH_EMC is not set
# CONFIG_SCSI_DH_ALUA is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_SATA_PMP=y
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y
# CONFIG_SATA_SVW is not set
# CONFIG_ATA_PIIX is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SX4 is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PCMCIA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_RZ1000 is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set
# CONFIG_PATA_SCH is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_MD_RAID10=y
CONFIG_MD_RAID456=y
# CONFIG_MULTICORE_RAID456 is not set
CONFIG_MD_RAID6_PQ=y
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_DEBUG is not set
# CONFIG_DM_CRYPT is not set
# CONFIG_DM_SNAPSHOT is not set
# CONFIG_DM_MIRROR is not set
# CONFIG_DM_ZERO is not set
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
CONFIG_DM_UEVENT=y
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#

#
# You can enable one or both FireWire driver stacks.
#

#
# The newer stack is recommended.
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_BONDING=m
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
# CONFIG_PHYLIB is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
CONFIG_LASI_82596=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_ETHOC is not set
# CONFIG_DNET is not set
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
# CONFIG_TULIP_MMIO is not set
# CONFIG_TULIP_NAPI is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_PCMCIA_XIRCOM is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
# CONFIG_CS89x0 is not set
# CONFIG_E100 is not set
# CONFIG_LNE390 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_R6040 is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SMSC9420 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_KS8842 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SC92031 is not set
# CONFIG_NET_POCKET is not set
# CONFIG_ATL2 is not set
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set
CONFIG_WLAN=y
# CONFIG_PCMCIA_RAYCS is not set
# CONFIG_ATMEL is not set
# CONFIG_AIRO_CS is not set
# CONFIG_PCMCIA_WL3501 is not set
# CONFIG_PRISM54 is not set
# CONFIG_USB_ZD1201 is not set
CONFIG_HOSTAP=m
CONFIG_HOSTAP_FIRMWARE=y
CONFIG_HOSTAP_FIRMWARE_NVRAM=y
# CONFIG_HOSTAP_PLX is not set
CONFIG_HOSTAP_PCI=m
CONFIG_HOSTAP_CS=m

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
CONFIG_NET_PCMCIA=y
# CONFIG_PCMCIA_3C589 is not set
# CONFIG_PCMCIA_3C574 is not set
# CONFIG_PCMCIA_FMVJ18X is not set
# CONFIG_PCMCIA_PCNET is not set
# CONFIG_PCMCIA_NMCLAN is not set
# CONFIG_PCMCIA_SMC91C92 is not set
# CONFIG_PCMCIA_XIRC2PS is not set
# CONFIG_PCMCIA_AXNET is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPP_FILTER is not set
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
# CONFIG_PPP_MPPE is not set
CONFIG_PPPOE=m
# CONFIG_PPPOL2TP is not set
# CONFIG_SLIP is not set
CONFIG_SLHC=m
# CONFIG_NET_FC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
CONFIG_INPUT_POLLDEV=y
# CONFIG_INPUT_SPARSEKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_HIL_OLD is not set
CONFIG_KEYBOARD_HIL=m
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_SERIAL=y
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_ATI_REMOTE is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
CONFIG_INPUT_UINPUT=m
CONFIG_HP_SDC_RTC=m

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_PARKBD is not set
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=m
CONFIG_HIL_MLC=m
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_DEVKMEM=y
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_CS=y
CONFIG_SERIAL_8250_NR_UARTS=17
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_MUX=y
CONFIG_SERIAL_MUX_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=64
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
CONFIG_PPDEV=m
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# PCMCIA character devices
#
# CONFIG_SYNCLINK_CS is not set
# CONFIG_CARDMAN_4000 is not set
# CONFIG_CARDMAN_4040 is not set
# CONFIG_IPWIRELESS is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
# CONFIG_SPI is not set

#
# PPS support
#
# CONFIG_PPS is not set
# CONFIG_W1 is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_BATTERY_DS2760 is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_REGULATOR is not set
CONFIG_MEDIA_SUPPORT=m

#
# Multimedia core support
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
# CONFIG_VIDEO_MEDIA is not set

#
# Multimedia drivers
#
CONFIG_IR_CORE=m
CONFIG_VIDEO_IR=m
# CONFIG_DAB is not set

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_BOTH_ENDIAN=y
# CONFIG_FB_BIG_ENDIAN is not set
# CONFIG_FB_LITTLE_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_STI=y
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
CONFIG_FB_VOODOO1=m
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=128
CONFIG_DUMMY_CONSOLE_ROWS=48
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_STI_CONSOLE=y
CONFIG_FONTS=y
# CONFIG_FONT_8x8 is not set
CONFIG_FONT_8x16=y
# CONFIG_FONT_6x11 is not set
# CONFIG_FONT_7x14 is not set
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
# CONFIG_FONT_MINI_4x6 is not set
# CONFIG_FONT_SUN8x16 is not set
# CONFIG_FONT_SUN12x22 is not set
# CONFIG_FONT_10x18 is not set
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_LOGO_PARISC_CLUT224=y
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
CONFIG_SOUND_OSS_CORE_PRECLAIM=y
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_SEQUENCER=m
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
# CONFIG_SND_PORTMAN2X4 is not set
# CONFIG_SND_AC97_POWER_SAVE is not set
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
CONFIG_SND_USB=y
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_CAIAQ is not set
# CONFIG_SND_PCMCIA is not set
CONFIG_SND_GSC=y
CONFIG_SND_HARMONY=m
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
CONFIG_HIDRAW=y

#
# USB Input Devices
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set

#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
CONFIG_HID_APPLE=y
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
CONFIG_HID_CYPRESS=y
CONFIG_HID_DRAGONRISE=y
# CONFIG_DRAGONRISE_FF is not set
CONFIG_HID_EZKEY=y
CONFIG_HID_KYE=y
CONFIG_HID_GYRATION=y
CONFIG_HID_TWINHAN=y
CONFIG_HID_KENSINGTON=y
CONFIG_HID_LOGITECH=y
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
CONFIG_HID_NTRIG=y
CONFIG_HID_PANTHERLORD=y
# CONFIG_PANTHERLORD_FF is not set
CONFIG_HID_PETALYNX=y
CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
CONFIG_HID_SUNPLUS=y
CONFIG_HID_GREENASIA=y
# CONFIG_GREENASIA_FF is not set
CONFIG_HID_SMARTJOYPLUS=y
# CONFIG_SMARTJOYPLUS_FF is not set
CONFIG_HID_TOPSEED=y
CONFIG_HID_THRUSTMASTER=y
# CONFIG_THRUSTMASTER_FF is not set
CONFIG_HID_ZEROPLUS=y
# CONFIG_ZEROPLUS_FF is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_DEVICE_CLASS is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
CONFIG_USB_MON=y
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
# CONFIG_USB_EHCI_HCD is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_WHCI_HCD is not set
# CONFIG_USB_HWA_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_BERRY_CHARGE is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_VST is not set
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# LED drivers
#

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_IDE_DISK=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y

#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
CONFIG_DMADEVICES=y

#
# DMA Devices
#
CONFIG_AUXDISPLAY=y
# CONFIG_KS0108 is not set
# CONFIG_UIO is not set

#
# TI VLYNQ
#
# CONFIG_STAGING is not set

#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
# CONFIG_EXT4_FS is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=m
# CONFIG_REISERFS_CHECK is not set
CONFIG_REISERFS_PROC_INFO=y
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
# CONFIG_XFS_POSIX_ACL is not set
# CONFIG_XFS_RT is not set
# CONFIG_XFS_DEBUG is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_AUTOFS_FS=y
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
CONFIG_GENERIC_ACL=y

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
# CONFIG_MSDOS_FS is not set
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
# CONFIG_NFS_V4 is not set
CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V3_ACL is not set
CONFIG_NFSD_V4=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
CONFIG_RPCSEC_GSS_KRB5=y
CONFIG_RPCSEC_GSS_SPKM3=m
CONFIG_SMB_FS=m
CONFIG_SMB_NLS_DEFAULT=y
CONFIG_SMB_NLS_REMOTE="cp437"
CONFIG_CIFS=m
# CONFIG_CIFS_STATS is not set
CONFIG_CIFS_WEAK_PW_HASH=y
# CONFIG_CIFS_UPCALL is not set
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_DFS_UPCALL is not set
# CONFIG_CIFS_EXPERIMENTAL is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=y
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=y
# CONFIG_DLM is not set

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_DETECT_SOFTLOCKUP=y
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=1
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
CONFIG_SCHED_DEBUG=y
CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_PI_LIST=y
CONFIG_RT_MUTEX_TESTER=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
CONFIG_DEBUG_VM=y
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_LIST=y
CONFIG_DEBUG_SG=y
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
CONFIG_FRAME_POINTER=y
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_LATENCYTOP=y
CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_DEBUG_PAGEALLOC=y
CONFIG_WANT_PAGE_DEBUG_FLAGS=y
CONFIG_PAGE_POISONING=y
CONFIG_DYNAMIC_DEBUG=y
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_RODATA is not set

#
# Security options
#
CONFIG_KEYS=y
CONFIG_KEYS_DEBUG_PROC_KEYS=y
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
# CONFIG_DEFAULT_SECURITY_SELINUX is not set
# CONFIG_DEFAULT_SECURITY_SMACK is not set
# CONFIG_DEFAULT_SECURITY_TOMOYO is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_XOR_BLOCKS=y
CONFIG_ASYNC_CORE=y
CONFIG_ASYNC_MEMCPY=y
CONFIG_ASYNC_XOR=y
CONFIG_ASYNC_PQ=y
CONFIG_ASYNC_RAID6_RECOV=y
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_GF128MUL is not set
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
# CONFIG_CRYPTO_GHASH is not set
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
# CONFIG_CRYPTO_CAMELLIA is not set
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_FCRYPT is not set
CONFIG_CRYPTO_KHAZAD=m
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_HIFN_795X is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_LAST_BIT=y
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CONFIG_CRC_T10DIF=y
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y
CONFIG_GENERIC_ATOMIC64=y

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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex.c and EWOULDBLOCK vs. EAGAIN patch
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On Mon, May 10, 2010 at 09:41:40PM +0200, Helge Deller wrote:
> Since PARISC is the only Linux architecture which has different values
> for EAGAIN and EWOULDBLOCK, we are running in various issues.
> 
> One of them is, that e.g. glibc checks for EAGAIN instead of EWOULDBLOCK
> (and vise versa) in nptl/pthread_mutex_trylock.c. This doesn't hurt
> other architectures, but it hurts parisc.
> 
> I was planning to send the patch below to linux kernel mailing list.
> But before I do it, I would like to get feedback from the kernel
> hackers here on the list.
> 
> What do you think?

Do it.
We kept them distinct to enable support for HPUX binaries.
This is never going to happen.

> Is this patch useful?

Yes.

> Or will people just call me an idiot if I ask if this patch could be applied?
> If you think it's useful, maybe another patch description would be more appropriate?

Could we just equate like other arcthitectures so the kernel only ever
returns one of those and not both?

> Any feedback is welcome...

Thanks for bringing this up! :)

cheers,
grant

> 
> Helge
> 
> -----------------------
> [PATCH] futex.c: return EAGAIN instead of EWOULDBLOCK
> 
> Patch summary:
> In the Linux kernel all architectures beside the PARISC architecture 
> define EWOULDBLOCK as EAGAIN:
> 
> arch/sparc/include/asm/errno.h:#define  EWOULDBLOCK     EAGAIN  /* Operation would block */
> arch/mips/include/asm/errno.h:#define   EWOULDBLOCK     EAGAIN  /* Operation would block */
> arch/alpha/include/asm/errno.h:#define  EWOULDBLOCK     EAGAIN  /* Operation would block */
> include/asm-generic/errno.h:#define     EWOULDBLOCK     EAGAIN  /* Operation would block */
> 
> The only exception is PARISC, which tries to keep HP-UX compatibility:
> arch/parisc/include/asm/errno.h:#define EWOULDBLOCK     246     /* Operation would block (Linux returns EAGAIN) */
> 
> This difference leads to various problems with userspace, which often 
> thinks that EWOULDBLOCK and EGAIN are of the same value. To avoid problems
> userspace sometimes has to check the return value for both values.
> 
> The following patch cleans up the Linux kernel futex implementation to
> always return EAGAIN instead of EWOULDBLOCK.
> Binary compatibility for all architectures beside PARISC is still kept,
> but on PARISC this will ease life a lot.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> 
> diff --git a/kernel/futex.c b/kernel/futex.c
> index e7a35f1..28d14ff 100644
> --- a/kernel/futex.c
> +++ b/kernel/futex.c
> @@ -1732,7 +1732,7 @@ static void futex_wait_queue_me(struct futex_hash_bucket *hb, struct futex_q *q,
>   *
>   * Returns:
>   *  0 - uaddr contains val and hb has been locked
> - * <1 - -EFAULT or -EWOULDBLOCK (uaddr does not contain val) and hb is unlcoked
> + * <1 - -EFAULT or -EAGAIN (uaddr does not contain val) and hb is unlcoked
>   */
>  static int futex_wait_setup(u32 __user *uaddr, u32 val, int fshared,
>  			   struct futex_q *q, struct futex_hash_bucket **hb)
> @@ -1784,7 +1784,7 @@ retry_private:
>  
>  	if (uval != val) {
>  		queue_unlock(q, *hb);
> -		ret = -EWOULDBLOCK;
> +		ret = -EAGAIN;
>  	}
>  
>  out:
> @@ -1969,7 +1969,7 @@ retry_private:
>  	else {
>  		ret = rt_mutex_trylock(&q.pi_state->pi_mutex);
>  		/* Fixup the trylock return value: */
> -		ret = ret ? 0 : -EWOULDBLOCK;
> +		ret = ret ? 0 : -EAGAIN;
>  	}
>  
>  	spin_lock(q.lock_ptr);
> @@ -2154,7 +2154,7 @@ int handle_early_requeue_pi_wakeup(struct futex_hash_bucket *hb,
>  		plist_del(&q->list, &q->list.plist);
>  
>  		/* Handle spurious wakeups gracefully */
> -		ret = -EWOULDBLOCK;
> +		ret = -EAGAIN;
>  		if (timeout && !timeout->task)
>  			ret = -ETIMEDOUT;
>  		else if (signal_pending(current))
> @@ -2196,7 +2196,7 @@ int handle_early_requeue_pi_wakeup(struct futex_hash_bucket *hb,
>   * 7) timeout
>   * 8) other lock acquisition failure
>   *
> - * If 6, return -EWOULDBLOCK (restarting the syscall would do the same).
> + * If 6, return -EAGAIN (restarting the syscall would do the same).
>   *
>   * If 4 or 7, we cleanup and return with -ETIMEDOUT.
>   *
> @@ -2318,10 +2318,10 @@ static int futex_wait_requeue_pi(u32 __user *uaddr, int fshared,
>  		 * We've already been requeued, but cannot restart by calling
>  		 * futex_lock_pi() directly. We could restart this syscall, but
>  		 * it would detect that the user space "val" changed and return
> -		 * -EWOULDBLOCK.  Save the overhead of the restart and return
> -		 * -EWOULDBLOCK directly.
> +		 * -EAGAIN.  Save the overhead of the restart and return
> +		 * -EAGAIN directly.
>  		 */
> -		ret = -EWOULDBLOCK;
> +		ret = -EAGAIN;
>  	}
>  
>  out_put_keys:
> --
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: futex.c and EWOULDBLOCK vs. EAGAIN patch
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On Fri, May 14, 2010 at 3:20 PM, Grant Grundler
<grundler@parisc-linux.org> wrote:
> On Mon, May 10, 2010 at 09:41:40PM +0200, Helge Deller wrote:
>> Since PARISC is the only Linux architecture which has different values
>> for EAGAIN and EWOULDBLOCK, we are running in various issues.
>>
>> One of them is, that e.g. glibc checks for EAGAIN instead of EWOULDBLOCK
>> (and vise versa) in nptl/pthread_mutex_trylock.c. This doesn't hurt
>> other architectures, but it hurts parisc.
>>
>> I was planning to send the patch below to linux kernel mailing list.
>> But before I do it, I would like to get feedback from the kernel
>> hackers here on the list.
>>
>> What do you think?
>
> Do it.
> We kept them distinct to enable support for HPUX binaries.
> This is never going to happen.

Grant, does this mean you endorse purging the kernel of all uses of
EWOULDBLOCK (with the exception of the header file used by userspace)?

FWIW I think this is the right approach.

>> Is this patch useful?
>
> Yes.
>
>> Or will people just call me an idiot if I ask if this patch could be applied?
>> If you think it's useful, maybe another patch description would be more appropriate?
>
> Could we just equate like other arcthitectures so the kernel only ever
> returns one of those and not both?

There are ABI issues that I would like to discuss before you send your
patch upstream.

Once you change the kernel EWOULDBLOCK to be equal to EAGAIN, you have
broken the ABI.

A kernel syscall that used to return EWOULDBLOCK, now returns EAGAIN.

An application that checked only for EWOULDBLOCK might fail now that
EAGAIN is being returned.

Is this a concern? I don't think it is. The POSIX standard, in all
cases I could find, says the functions return "EAGAIN or EWOULDBLOCK",
meaning that a conforming program must check for both.

The alternative to Helge's patch is a glibc patch to check the return
of *every* syscall and convert EWOULDBLOCK to EAGAIN. This approach
has a cost to our syscall fast path. Therefore I am not as inclined to
follow this approach.

Cheers,
Carlos.
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex.c and EWOULDBLOCK vs. EAGAIN patch
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On Sat, May 15, 2010 at 07:24:54AM -0400, Carlos O'Donell wrote:
> An application that checked only for EWOULDBLOCK might fail now that
> EAGAIN is being returned.
> 
> Is this a concern? I don't think it is. The POSIX standard, in all
> cases I could find, says the functions return "EAGAIN or EWOULDBLOCK",
> meaning that a conforming program must check for both.
> 

It's a two instruction penalty(*) in the kernel syscall return path, just
do it there. I've got a box at Red Hat with all the source to the whole
damn world on it we run greps against to look for dumb stuff like memcpy
bugs. I'll toss a grep for EAGAIN and not EWOULDBLOCK and vice versa and
see how much stuff might b0rk.

We discussed this a couple years ago, and it ended up being a complete
rats nest of error returns that needed fixing.

regards, Kyle.

*: CMPI,N(=), LDI, maybe a third since I don't remember how sign
extension works off the top of my head.
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On Tue, 11 May 2010, Helge Deller wrote:

> On 05/11/2010 11:26 PM, John David Anglin wrote:
> >> On 05/10/2010 09:20 PM, Helge Deller wrote:
> >>> On 05/10/2010 04:56 PM, John David Anglin wrote:
> >>>> Yes, just after sending, I noticed gcc testsuite and minifail were
> >>>> broken on gsyprf11.  [...]
> >>>>
> >>>> The attached works better on gsyprf11.  I haven't tested it on anything
> >>>> else.
> >>
> >> Hi Dave,
> >>
> >> I still can see segfaults of the minifail_dave.cpp program.

I haven't seen any abnormal segfaults with the attached change on
my rp3440 and gsyprf11.  Need to flush in pte_wrprotect for minifail,
and to flush in copy_user_page to fix occasional segfaults in sh.
The flushes in kmap/kunmap weren't sufficient.

Still experimenting to see if number of flushes can be reduced, etc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--tThc/1wpZn/ma/RB
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="diff-20100514.d"

diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 716634d..ad7df44 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -24,29 +24,46 @@
  * Hash function to index into a different SPINLOCK.
  * Since "a" is usually an address, use one spinlock per cacheline.
  */
-#  define ATOMIC_HASH_SIZE 4
-#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_HASH_SIZE (4096/L1_CACHE_BYTES)  /* 4 */
+#  define ATOMIC_HASH(a)      (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_USER_HASH(a) (&(__atomic_user_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
 
 extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
+extern arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 
 /* Can't use raw_spin_lock_irq because of #include problems, so
  * this is the substitute */
-#define _atomic_spin_lock_irqsave(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);		\
+#define _atomic_spin_lock_irqsave_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;		\
 	local_irq_save(f);			\
 	arch_spin_lock(s);			\
 } while(0)
 
-#define _atomic_spin_unlock_irqrestore(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);			\
+#define _atomic_spin_unlock_irqrestore_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;			\
 	arch_spin_unlock(s);				\
 	local_irq_restore(f);				\
 } while(0)
 
+/* kernel memory locks */
+#define _atomic_spin_lock_irqsave(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_HASH(l))
+
+/* userspace memory locks */
+#define _atomic_spin_lock_irqsave_user(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_USER_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore_user(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_USER_HASH(l))
 
 #else
 #  define _atomic_spin_lock_irqsave(l,f) do { local_irq_save(f); } while (0)
 #  define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
+#  define _atomic_spin_lock_irqsave_user(l,f) _atomic_spin_lock_irqsave(l,f)
+#  define _atomic_spin_unlock_irqrestore_user(l,f) _atomic_spin_unlock_irqrestore(l,f)
 #endif
 
 /* This should get optimized out since it's never called.
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7a73b61..b90c895 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -2,6 +2,7 @@
 #define _PARISC_CACHEFLUSH_H
 
 #include <linux/mm.h>
+#include <linux/uaccess.h>
 
 /* The usual comment is "Caches aren't brain-dead on the <architecture>".
  * Unfortunately, that doesn't apply to PA-RISC. */
@@ -104,21 +105,32 @@ void mark_rodata_ro(void);
 #define ARCH_HAS_KMAP
 
 void kunmap_parisc(void *addr);
+void *kmap_parisc(struct page *page);
 
 static inline void *kmap(struct page *page)
 {
 	might_sleep();
-	return page_address(page);
+	return kmap_parisc(page);
 }
 
 #define kunmap(page)			kunmap_parisc(page_address(page))
 
-#define kmap_atomic(page, idx)		page_address(page)
+static inline void *kmap_atomic(struct page *page, enum km_type idx)
+{
+	pagefault_disable();
+	return kmap_parisc(page);
+}
 
-#define kunmap_atomic(addr, idx)	kunmap_parisc(addr)
+static inline void kunmap_atomic(void *addr, enum km_type idx)
+{
+	kunmap_parisc(addr);
+	pagefault_enable();
+}
 
-#define kmap_atomic_pfn(pfn, idx)	page_address(pfn_to_page(pfn))
-#define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
+#define kmap_atomic_prot(page, idx, prot)	kmap_atomic(page, idx)
+#define kmap_atomic_pfn(pfn, idx)	kmap_atomic(pfn_to_page(pfn), (idx))
+#define kmap_atomic_to_page(ptr)	virt_to_page(kmap_atomic(virt_to_page(ptr), (enum km_type) 0))
+#define kmap_flush_unused()	do {} while(0)
 #endif
 
 #endif /* _PARISC_CACHEFLUSH_H */
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 0c705c3..7bc963e 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -55,6 +55,7 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 {
 	int err = 0;
 	int uval;
+	unsigned long flags;
 
 	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
 	 * our gateway page, and causes no end of trouble...
@@ -65,10 +66,15 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
 		return -EFAULT;
 
+	_atomic_spin_lock_irqsave_user(uaddr, flags);
+
 	err = get_user(uval, uaddr);
-	if (err) return -EFAULT;
-	if (uval == oldval)
-		err = put_user(newval, uaddr);
+	if (!err)
+		if (uval == oldval)
+			err = put_user(newval, uaddr);
+
+	_atomic_spin_unlock_irqrestore_user(uaddr, flags);
+
 	if (err) return -EFAULT;
 	return uval;
 }
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index a27d2e2..2c6da94 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -30,15 +30,21 @@
  */
 #define kern_addr_valid(addr)	(1)
 
+extern spinlock_t pa_pte_lock;
+extern spinlock_t pa_tlb_lock;
+
 /* Certain architectures need to do special things when PTEs
  * within a page table are directly modified.  Thus, the following
  * hook is made available.
  */
-#define set_pte(pteptr, pteval)                                 \
-        do{                                                     \
+#define set_pte(pteptr, pteval)					\
+        do {							\
+		unsigned long flags;				\
+		spin_lock_irqsave(&pa_pte_lock, flags);		\
                 *(pteptr) = (pteval);                           \
+		spin_unlock_irqrestore(&pa_pte_lock, flags);	\
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+#define set_pte_at(mm,addr,ptep,pteval)	set_pte(ptep, pteval)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -262,6 +268,7 @@ extern unsigned long *empty_zero_page;
 #define pte_none(x)     ((pte_val(x) == 0) || (pte_val(x) & _PAGE_FLUSH))
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
 #define pte_clear(mm,addr,xp)	do { pte_val(*(xp)) = 0; } while (0)
+#define pte_same(A,B)	(pte_val(A) == pte_val(B))
 
 #define pmd_flag(x)	(pmd_val(x) & PxD_FLAG_MASK)
 #define pmd_address(x)	((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
@@ -410,6 +417,7 @@ extern void paging_init (void);
 
 #define PG_dcache_dirty         PG_arch_1
 
+extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn);
 extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
 
 /* Encode and de-code a swap entry */
@@ -423,56 +431,84 @@ extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
 #define __pte_to_swp_entry(pte)		((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x)		((pte_t) { (x).val })
 
-static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+static inline void __flush_tlb_page(struct mm_struct *mm, unsigned long addr)
 {
-#ifdef CONFIG_SMP
-	if (!pte_young(*ptep))
-		return 0;
-	return test_and_clear_bit(xlate_pabit(_PAGE_ACCESSED_BIT), &pte_val(*ptep));
-#else
-	pte_t pte = *ptep;
-	if (!pte_young(pte))
-		return 0;
-	set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte));
-	return 1;
-#endif
+	unsigned long flags;
+
+	/* For one page, it's not worth testing the split_tlb variable.  */
+	spin_lock_irqsave(&pa_tlb_lock, flags);
+	mtsp(mm->context,1);
+	pdtlb(addr);
+	pitlb(addr);
+	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 }
 
-extern spinlock_t pa_dbit_lock;
+static inline int ptep_set_access_flags(struct vm_area_struct *vma, unsigned
+ long addr, pte_t *ptep, pte_t entry, int dirty)
+{
+	int changed;
+	unsigned long flags;
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	changed = !pte_same(*ptep, entry);
+	if (changed) {
+		*ptep = entry;
+	}
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
+	if (changed) {
+		__flush_tlb_page(vma->vm_mm, addr);
+	}
+	return changed;
+}
+
+static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+{
+	pte_t pte;
+	unsigned long flags;
+	int r;
+
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	pte = *ptep;
+	if (pte_young(pte)) {
+		*ptep = pte_mkold(pte);
+		r = 1;
+	} else {
+		r = 0;
+	}
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
+
+	return r;
+}
 
 struct mm_struct;
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-	pte_t old_pte;
-	pte_t pte;
+	pte_t pte, old_pte;
+	unsigned long flags;
 
-	spin_lock(&pa_dbit_lock);
+	spin_lock_irqsave(&pa_pte_lock, flags);
 	pte = old_pte = *ptep;
 	pte_val(pte) &= ~_PAGE_PRESENT;
 	pte_val(pte) |= _PAGE_FLUSH;
-	set_pte_at(mm,addr,ptep,pte);
-	spin_unlock(&pa_dbit_lock);
+	*ptep = pte;
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
 
 	return old_pte;
 }
 
-static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+static inline void ptep_set_wrprotect(struct vm_area_struct *vma, struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-#ifdef CONFIG_SMP
-	unsigned long new, old;
-
-	do {
-		old = pte_val(*ptep);
-		new = pte_val(pte_wrprotect(__pte (old)));
-	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
-#else
-	pte_t old_pte = *ptep;
-	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
-#endif
+	pte_t old_pte;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	old_pte = *ptep;
+	*ptep = pte_wrprotect(old_pte);
+	WARN_ON(!pte_present(old_pte) && !(pte_val(old_pte) & _PAGE_FLUSH));
+	__flush_tlb_page(mm, addr);
+	flush_cache_page(vma, addr, pte_pfn(old_pte));
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
 }
 
-#define pte_same(A,B)	(pte_val(A) == pte_val(B))
-
 #endif /* !__ASSEMBLY__ */
 
 
@@ -504,6 +540,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 
 #define HAVE_ARCH_UNMAPPED_AREA
 
+#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
index d91357b..4653c77 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -160,7 +160,7 @@ static inline void set_eiem(unsigned long val)
    ldcd). */
 
 #define __PA_LDCW_ALIGNMENT	4
-#define __ldcw_align(a) ((volatile unsigned int *)a)
+#define __ldcw_align(a) (&(a)->slock)
 #define __LDCW	"ldcw,co"
 
 #endif /*!CONFIG_PA20*/
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index ec787b4..b2f35b2 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -137,6 +137,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -225,6 +226,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
@@ -290,5 +292,11 @@ int main(void)
 	BLANK();
 	DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
 	BLANK();
+
+#ifdef CONFIG_SMP
+	DEFINE(ASM_ATOMIC_HASH_SIZE_SHIFT, __builtin_ffs(ATOMIC_HASH_SIZE)-1);
+	DEFINE(ASM_ATOMIC_HASH_ENTRY_SHIFT, __builtin_ffs(sizeof(__atomic_hash[0]))-1);
+#endif
+
 	return 0;
 }
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index b6ed34d..517537d 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -336,9 +336,9 @@ __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
 	}
 }
 
-void flush_dcache_page(struct page *page)
+static void flush_user_dcache_page_internal(struct address_space *mapping,
+					    struct page *page)
 {
-	struct address_space *mapping = page_mapping(page);
 	struct vm_area_struct *mpnt;
 	struct prio_tree_iter iter;
 	unsigned long offset;
@@ -346,14 +346,6 @@ void flush_dcache_page(struct page *page)
 	pgoff_t pgoff;
 	unsigned long pfn = page_to_pfn(page);
 
-
-	if (mapping && !mapping_mapped(mapping)) {
-		set_bit(PG_dcache_dirty, &page->flags);
-		return;
-	}
-
-	flush_kernel_dcache_page(page);
-
 	if (!mapping)
 		return;
 
@@ -387,6 +379,19 @@ void flush_dcache_page(struct page *page)
 	}
 	flush_dcache_mmap_unlock(mapping);
 }
+
+void flush_dcache_page(struct page *page)
+{
+	struct address_space *mapping = page_mapping(page);
+
+	if (mapping && !mapping_mapped(mapping)) {
+		set_bit(PG_dcache_dirty, &page->flags);
+		return;
+	}
+
+	flush_kernel_dcache_page(page);
+	flush_user_dcache_page_internal(mapping, page);
+}
 EXPORT_SYMBOL(flush_dcache_page);
 
 /* Defined in arch/parisc/kernel/pacache.S */
@@ -395,15 +400,12 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
+static void clear_user_page_asm(void *page, unsigned long vaddr)
 {
-	unsigned long flags;
 	/* This function is implemented in assembly in pacache.S */
 	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
 
-	purge_tlb_start(flags);
 	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
 }
 
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
@@ -440,7 +442,6 @@ void __init parisc_setup_cache_timing(void)
 }
 
 extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
 
 void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 {
@@ -470,21 +471,10 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 {
 	/* no coherency needed (all in kmap/kunmap) */
 	copy_user_page_asm(vto, vfrom);
-	if (!parisc_requires_coherency())
-		flush_kernel_dcache_page_asm(vto);
+	flush_kernel_dcache_page_asm(vto);
 }
 EXPORT_SYMBOL(copy_user_page);
 
-#ifdef CONFIG_PA8X00
-
-void kunmap_parisc(void *addr)
-{
-	if (parisc_requires_coherency())
-		flush_kernel_dcache_page_addr(addr);
-}
-EXPORT_SYMBOL(kunmap_parisc);
-#endif
-
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {
@@ -577,3 +567,25 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 		__flush_cache_page(vma, vmaddr);
 
 }
+
+void *kmap_parisc(struct page *page)
+{
+	/* this is a killer.  There's no easy way to test quickly if
+	 * this page is dirty in any userspace.  Additionally, for
+	 * kernel alterations of the page, we'd need it invalidated
+	 * here anyway, so currently flush (and invalidate)
+	 * universally */
+	flush_user_dcache_page_internal(page_mapping(page), page);
+	return page_address(page);
+}
+EXPORT_SYMBOL(kmap_parisc);
+
+void kunmap_parisc(void *addr)
+{
+	/* flush and invalidate the kernel mapping.  We need the
+	 * invalidate so we don't have stale data at this cache
+	 * location the next time the page is mapped */
+	flush_kernel_dcache_page_addr(addr);
+}
+EXPORT_SYMBOL(kunmap_parisc);
+
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3a44f7f..e1c0128 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -45,7 +45,7 @@
 	.level 2.0
 #endif
 
-	.import         pa_dbit_lock,data
+	.import         pa_pte_lock,data
 
 	/* space_to_prot macro creates a prot id from a space id */
 
@@ -364,32 +364,6 @@
 	.align		32
 	.endm
 
-	/* The following are simple 32 vs 64 bit instruction
-	 * abstractions for the macros */
-	.macro		EXTR	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	extrd,u		\reg1,32+(\start),\length,\reg2
-#else
-	extrw,u		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEP	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	depd		\reg1,32+(\start),\length,\reg2
-#else
-	depw		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEPI	val,start,length,reg
-#ifdef CONFIG_64BIT
-	depdi		\val,32+(\start),\length,\reg
-#else
-	depwi		\val,\start,\length,\reg
-#endif
-	.endm
-
 	/* In LP64, the space contains part of the upper 32 bits of the
 	 * fault.  We have to extract this and place it in the va,
 	 * zeroing the corresponding bits in the space register */
@@ -442,19 +416,19 @@
 	 */
 	.macro		L2_ptep	pmd,pte,index,va,fault
 #if PT_NLEVELS == 3
-	EXTR		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
+	extru		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
 #else
-	EXTR		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
+	extru		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 #endif
-	DEP             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	dep             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	copy		%r0,\pte
 	ldw,s		\index(\pmd),\pmd
 	bb,>=,n		\pmd,_PxD_PRESENT_BIT,\fault
-	DEP		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
+	dep		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
 	copy		\pmd,%r9
 	SHLREG		%r9,PxD_VALUE_SHIFT,\pmd
-	EXTR		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
-	DEP		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	extru		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
+	dep		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
 	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
 	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
@@ -488,13 +462,44 @@
 	L2_ptep		\pgd,\pte,\index,\va,\fault
 	.endm
 
+	/* SMP lock for consistent PTE updates.  Unlocks and jumps
+	   to FAULT if the page is not present.  Note the preceeding
+	   load of the PTE can't be deleted since we can't fault holding
+	   the lock.  */ 
+	.macro		pte_lock	ptep,pte,spc,tmp,tmp1,fault
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n        0,\spc,2f
+	load32		PA(pa_pte_lock),\tmp1
+1:
+	LDCW		0(\tmp1),\tmp
+	cmpib,COND(=)         0,\tmp,1b
+	nop
+	LDREG		%r0(\ptep),\pte
+	bb,<,n		\pte,_PAGE_PRESENT_BIT,2f
+	ldi             1,\tmp
+	stw             \tmp,0(\tmp1)
+	b,n		\fault
+2:
+#endif
+	.endm
+
+	.macro		pte_unlock	spc,tmp,tmp1
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n        0,\spc,1f
+	ldi             1,\tmp
+	stw             \tmp,0(\tmp1)
+1:
+#endif
+	.endm
+
 	/* Set the _PAGE_ACCESSED bit of the PTE.  Be clever and
 	 * don't needlessly dirty the cache line if it was already set */
-	.macro		update_ptep	ptep,pte,tmp,tmp1
-	ldi		_PAGE_ACCESSED,\tmp1
-	or		\tmp1,\pte,\tmp
-	and,COND(<>)	\tmp1,\pte,%r0
-	STREG		\tmp,0(\ptep)
+	.macro		update_ptep	ptep,pte,tmp
+	bb,<,n		\pte,_PAGE_ACCESSED_BIT,1f
+	ldi		_PAGE_ACCESSED,\tmp
+	or		\tmp,\pte,\pte
+	STREG		\pte,0(\ptep)
+1:
 	.endm
 
 	/* Set the dirty bit (and accessed bit).  No need to be
@@ -605,7 +610,7 @@
 	depdi		0,31,32,\tmp
 #endif
 	copy		\va,\tmp1
-	DEPI		0,31,23,\tmp1
+	depi		0,31,23,\tmp1
 	cmpb,COND(<>),n	\tmp,\tmp1,\fault
 	ldi		(_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot
 	depd,z		\prot,8,7,\prot
@@ -622,6 +627,39 @@
 	or		%r26,%r0,\pte
 	.endm 
 
+	/* Save PTE for recheck if SMP.  */
+	.macro		save_pte	pte,tmp
+#ifdef CONFIG_SMP
+	copy		\pte,\tmp
+#endif
+	.endm
+
+	/* Reload the PTE and purge the data TLB entry if the new
+	   value is different from the old one.  */
+	.macro		dtlb_recheck	ptep,old_pte,spc,va,tmp
+#ifdef CONFIG_SMP
+	LDREG		%r0(\ptep),\tmp
+	cmpb,COND(=),n	\old_pte,\tmp,1f
+	mfsp		%sr1,\tmp
+	mtsp		\spc,%sr1
+	pdtlb,l		%r0(%sr1,\va)
+	mtsp		\tmp,%sr1
+1:
+#endif
+	.endm
+
+	.macro		itlb_recheck	ptep,old_pte,spc,va,tmp
+#ifdef CONFIG_SMP
+	LDREG		%r0(\ptep),\tmp
+	cmpb,COND(=),n	\old_pte,\tmp,1f
+	mfsp		%sr1,\tmp
+	mtsp		\spc,%sr1
+	pitlb,l		%r0(%sr1,\va)
+	mtsp		\tmp,%sr1
+1:
+#endif
+	.endm
+
 
 	/*
 	 * Align fault_vector_20 on 4K boundary so that both
@@ -758,6 +796,10 @@ ENTRY(__kernel_thread)
 
 	STREG	%r22, PT_GR22(%r1)	/* save r22 (arg5) */
 	copy	%r0, %r22		/* user_tid */
+	copy	%r0, %r21		/* child_tid */
+#else
+	stw	%r0, -52(%r30)	     	/* user_tid */
+	stw	%r0, -56(%r30)	     	/* child_tid */
 #endif
 	STREG	%r26, PT_GR26(%r1)  /* Store function & argument for child */
 	STREG	%r25, PT_GR25(%r1)
@@ -765,7 +807,7 @@ ENTRY(__kernel_thread)
 	ldo	CLONE_VM(%r26), %r26   /* Force CLONE_VM since only init_mm */
 	or	%r26, %r24, %r26      /* will have kernel mappings.	 */
 	ldi	1, %r25			/* stack_start, signals kernel thread */
-	stw	%r0, -52(%r30)	     	/* user_tid */
+	ldi	0, %r23			/* child_stack_size */
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
@@ -972,7 +1014,10 @@ intr_check_sig:
 	BL	do_notify_resume,%r2
 	copy	%r16, %r26			/* struct pt_regs *regs */
 
-	b,n	intr_check_sig
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 intr_restore:
 	copy            %r16,%r29
@@ -997,13 +1042,6 @@ intr_restore:
 
 	rfi
 	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
 
 #ifndef CONFIG_PREEMPT
 # define intr_do_preempt	intr_restore
@@ -1026,14 +1064,12 @@ intr_do_resched:
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	ldil	L%intr_check_sig, %r2
-#ifndef CONFIG_64BIT
-	b	schedule
-#else
-	load32	schedule, %r20
-	bv	%r0(%r20)
-#endif
-	ldo	R%intr_check_sig(%r2), %r2
+	BL	schedule,%r2
+	nop
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 	/* preempt the current task on returning to kernel
 	 * mode from an interrupt, iff need_resched is set,
@@ -1214,11 +1250,14 @@ dtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,dtlb_check_alias_20w
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,dtlb_check_alias_20w
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-	
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1238,11 +1277,10 @@ nadtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,nadtlb_check_flush_20w
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1272,8 +1310,11 @@ dtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_11
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,dtlb_check_alias_11
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
@@ -1283,6 +1324,7 @@ dtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1321,11 +1363,9 @@ nadtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_11
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
-
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
@@ -1333,6 +1373,7 @@ nadtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1368,13 +1409,17 @@ dtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_20
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,dtlb_check_alias_20
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1394,13 +1439,13 @@ nadtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_20
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 	
         idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1508,11 +1553,14 @@ itlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,itlb_fault
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-	
 	iitlbt          pte,prot
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1526,8 +1574,11 @@ itlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,itlb_fault
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
@@ -1537,6 +1588,7 @@ itlb_miss_11:
 	iitlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1548,13 +1600,17 @@ itlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	pte_lock	ptp,pte,spc,t0,t1,itlb_fault
+	update_ptep	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0	
 
 	iitlbt          pte,prot
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1570,29 +1626,14 @@ dbit_trap_20w:
 
 	L3_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20w
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20w:
-	LDCW		0(t0),t1
-	cmpib,COND(=)         0,t1,dbit_spin_20w
-	nop
-
-dbit_nolock_20w:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-		
 	idtlbt          pte,prot
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20w
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20w:
-#endif
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1606,35 +1647,21 @@ dbit_trap_11:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_11
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_11:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_11
-	nop
-
-dbit_nolock_11:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
-	mfsp            %sr1,t1  /* Save sr1 so we can use it in tlb inserts */
+	mfsp            %sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
 	idtlba		pte,(%sr1,va)
 	idtlbp		prot,(%sr1,va)
 
-	mtsp            t1, %sr1     /* Restore sr1 */
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_11
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_11:
-#endif
+	mtsp            t0, %sr1     /* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1646,32 +1673,17 @@ dbit_trap_20:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_20
-	nop
-
-dbit_nolock_20:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
-	f_extend	pte,t1
+	f_extend	pte,t0
 	
         idtlbt          pte,prot
-
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20:
-#endif
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1772,9 +1784,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1804,7 +1816,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1823,8 +1835,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1847,7 +1860,9 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
@@ -2076,9 +2091,10 @@ syscall_restore:
 	LDREG	TASK_PT_GR31(%r1),%r31	   /* restore syscall rp */
 
 	/* NOTE: We use rsm/ssm pair to make this operation atomic */
+	LDREG   TASK_PT_GR30(%r1),%r1              /* Get user sp */
 	rsm     PSW_SM_I, %r0
-	LDREG   TASK_PT_GR30(%r1),%r30             /* restore user sp */
-	mfsp	%sr3,%r1			   /* Get users space id */
+	copy    %r1,%r30                           /* Restore user sp */
+	mfsp    %sr3,%r1                           /* Get user space id */
 	mtsp    %r1,%sr7                           /* Restore sr7 */
 	ssm     PSW_SM_I, %r0
 
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 09b77b2..4f0d975 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -277,6 +277,7 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
+#if 1
 ENTRY(copy_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
@@ -400,6 +401,7 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
+#endif
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -548,17 +550,33 @@ ENTRY(__clear_user_page_asm)
 	depwi		0, 31,12, %r28		/* Clear any offset bits */
 #endif
 
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock, %r1
+	ldo		R%pa_tlb_lock(%r1), %r24
+	rsm		PSW_SM_I, %r22
+1:
+	LDCW		0(%r24),%r25
+	cmpib,COND(=)	0,%r25,1b
+	nop
+#endif
+
 	/* Purge any old translation */
 
 	pdtlb		0(%r28)
 
+#ifdef CONFIG_SMP
+	ldi		1,%r25
+	stw		%r25,0(%r24)
+	mtsm		%r22
+#endif
+
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
 
 	/* PREFETCH (Write) has not (yet) been proven to help here */
 	/* #define	PREFETCHW_OP	ldd		256(%0), %r0 */
 
-1:	std		%r0, 0(%r28)
+2:	std		%r0, 0(%r28)
 	std		%r0, 8(%r28)
 	std		%r0, 16(%r28)
 	std		%r0, 24(%r28)
@@ -574,13 +592,13 @@ ENTRY(__clear_user_page_asm)
 	std		%r0, 104(%r28)
 	std		%r0, 112(%r28)
 	std		%r0, 120(%r28)
-	addib,COND(>)		-1, %r1, 1b
+	addib,COND(>)		-1, %r1, 2b
 	ldo		128(%r28), %r28
 
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
+2:
 	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
@@ -597,7 +615,7 @@ ENTRY(__clear_user_page_asm)
 	stw		%r0, 52(%r28)
 	stw		%r0, 56(%r28)
 	stw		%r0, 60(%r28)
-	addib,COND(>)		-1, %r1, 1b
+	addib,COND(>)		-1, %r1, 2b
 	ldo		64(%r28), %r28
 #endif	/* CONFIG_64BIT */
 
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index cb71f3d..84b3239 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -128,6 +128,14 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_INFO "The 32-bit Kernel has started...\n");
 #endif
 
+	/* Consistency check on the size and alignments of our spinlocks */
+#ifdef CONFIG_SMP
+	BUILD_BUG_ON(sizeof(arch_spinlock_t) != __PA_LDCW_ALIGNMENT);
+	BUG_ON((unsigned long)&__atomic_hash[0] & (__PA_LDCW_ALIGNMENT-1));
+	BUG_ON((unsigned long)&__atomic_hash[1] & (__PA_LDCW_ALIGNMENT-1));
+#endif
+	BUILD_BUG_ON((1<<L1_CACHE_SHIFT) != L1_CACHE_BYTES);
+
 	pdc_console_init();
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f5f9602..68e75ce 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -47,18 +47,17 @@ ENTRY(linux_gateway_page)
 	KILL_INSN
 	.endr
 
-	/* ADDRESS 0xb0 to 0xb4, lws uses 1 insns for entry */
+	/* ADDRESS 0xb0 to 0xb8, lws uses two insns for entry */
 	/* Light-weight-syscall entry must always be located at 0xb0 */
 	/* WARNING: Keep this number updated with table size changes */
 #define __NR_lws_entries (2)
 
 lws_entry:
-	/* Unconditional branch to lws_start, located on the 
-	   same gateway page */
-	b,n	lws_start
+	gate	lws_start, %r0		/* increase privilege */
+	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
 
-	/* Fill from 0xb4 to 0xe0 */
-	.rept 11
+	/* Fill from 0xb8 to 0xe0 */
+	.rept 10
 	KILL_INSN
 	.endr
 
@@ -423,9 +422,6 @@ tracesys_sigexit:
 
 	*********************************************************/
 lws_start:
-	/* Gate and ensure we return to userspace */
-	gate	.+8, %r0
-	depi	3, 31, 2, %r31	/* Ensure we return to userspace */
 
 #ifdef CONFIG_64BIT
 	/* FIXME: If we are a 64-bit kernel just
@@ -442,7 +438,7 @@ lws_start:
 #endif	
 
         /* Is the lws entry number valid? */
-	comiclr,>>=	__NR_lws_entries, %r20, %r0
+	comiclr,>>	__NR_lws_entries, %r20, %r0
 	b,n	lws_exit_nosys
 
 	/* WARNING: Trashing sr2 and sr3 */
@@ -473,7 +469,7 @@ lws_exit:
 	/* now reset the lowest bit of sp if it was set */
 	xor	%r30,%r1,%r30
 #endif
-	be,n	0(%sr3, %r31)
+	be,n	0(%sr7, %r31)
 
 
 	
@@ -529,7 +525,6 @@ lws_compare_and_swap32:
 #endif
 
 lws_compare_and_swap:
-#ifdef CONFIG_SMP
 	/* Load start of lock table */
 	ldil	L%lws_lock_start, %r20
 	ldo	R%lws_lock_start(%r20), %r28
@@ -572,8 +567,6 @@ cas_wouldblock:
 	ldo	2(%r0), %r28				/* 2nd case */
 	b	lws_exit				/* Contended... */
 	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
-#endif
-/* CONFIG_SMP */
 
 	/*
 		prev = *addr;
@@ -601,13 +594,11 @@ cas_action:
 1:	ldw	0(%sr3,%r26), %r28
 	sub,<>	%r28, %r25, %r0
 2:	stw	%r24, 0(%sr3,%r26)
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	/* Clear thread register indicator */
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	/* Return to userspace, set no error */
 	b	lws_exit
@@ -615,12 +606,10 @@ cas_action:
 
 3:		
 	/* Error occured on load or store */
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	b	lws_exit
 	ldo	-EFAULT(%r0),%r21	/* set errno */
@@ -672,7 +661,6 @@ ENTRY(sys_call_table64)
 END(sys_call_table64)
 #endif
 
-#ifdef CONFIG_SMP
 	/*
 		All light-weight-syscall atomic operations 
 		will use this set of locks 
@@ -694,8 +682,6 @@ ENTRY(lws_lock_start)
 	.endr
 END(lws_lock_start)
 	.previous
-#endif
-/* CONFIG_SMP for lws_lock_start */
 
 .end
 
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 8b58bf0..804b024 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -47,7 +47,7 @@
 			  /*  dumped to the console via printk)          */
 
 #if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
-DEFINE_SPINLOCK(pa_dbit_lock);
+DEFINE_SPINLOCK(pa_pte_lock);
 #endif
 
 static void parisc_show_stack(struct task_struct *task, unsigned long *sp,
diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c
index 353963d..bae6a86 100644
--- a/arch/parisc/lib/bitops.c
+++ b/arch/parisc/lib/bitops.c
@@ -15,6 +15,9 @@
 arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
 	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
 };
+arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
+	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
+};
 #endif
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/math-emu/decode_exc.c b/arch/parisc/math-emu/decode_exc.c
index 3ca1c61..27a7492 100644
--- a/arch/parisc/math-emu/decode_exc.c
+++ b/arch/parisc/math-emu/decode_exc.c
@@ -342,6 +342,7 @@ decode_fpu(unsigned int Fpu_register[], unsigned int trap_counts[])
 		return SIGNALCODE(SIGFPE, FPE_FLTINV);
 	  case DIVISIONBYZEROEXCEPTION:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
+		Clear_excp_register(exception_index);
 	  	return SIGNALCODE(SIGFPE, FPE_FLTDIV);
 	  case INEXACTEXCEPTION:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
diff --git a/mm/memory.c b/mm/memory.c
index 09e4b1b..21c2916 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -616,7 +616,7 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	 * in the parent and the child
 	 */
 	if (is_cow_mapping(vm_flags)) {
-		ptep_set_wrprotect(src_mm, addr, src_pte);
+		ptep_set_wrprotect(vma, src_mm, addr, src_pte);
 		pte = pte_wrprotect(pte);
 	}
 

--tThc/1wpZn/ma/RB--
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From - Thu Nov 08 21:05:57 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex.c and EWOULDBLOCK vs. EAGAIN patch
Date: Sat, 15 May 2010 16:54:33 -0600
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On Sat, May 15, 2010 at 07:24:54AM -0400, Carlos O'Donell wrote:
> On Fri, May 14, 2010 at 3:20 PM, Grant Grundler
> <grundler@parisc-linux.org> wrote:
> > On Mon, May 10, 2010 at 09:41:40PM +0200, Helge Deller wrote:
> >> Since PARISC is the only Linux architecture which has different values
> >> for EAGAIN and EWOULDBLOCK, we are running in various issues.
> >>
> >> One of them is, that e.g. glibc checks for EAGAIN instead of EWOULDBLOCK
> >> (and vise versa) in nptl/pthread_mutex_trylock.c. This doesn't hurt
> >> other architectures, but it hurts parisc.
> >>
> >> I was planning to send the patch below to linux kernel mailing list.
> >> But before I do it, I would like to get feedback from the kernel
> >> hackers here on the list.
> >>
> >> What do you think?
> >
> > Do it.
> > We kept them distinct to enable support for HPUX binaries.
> > This is never going to happen.
> 
> Grant, does this mean you endorse purging the kernel of all uses of
> EWOULDBLOCK (with the exception of the header file used by userspace)?
> 
> FWIW I think this is the right approach.

Yes, I would. Any approach to eliminate the difference is fine with me.

BTW, "purging" here just means redefining to EAGAIN so the original
value that we've been using would no longer be used anywhere.

> 
> >> Is this patch useful?
> >
> > Yes.
> >
> >> Or will people just call me an idiot if I ask if this patch could be applied?
> >> If you think it's useful, maybe another patch description would be more appropriate?
> >
> > Could we just equate like other arcthitectures so the kernel only ever
> > returns one of those and not both?
> 
> There are ABI issues that I would like to discuss before you send your
> patch upstream.
> 
> Once you change the kernel EWOULDBLOCK to be equal to EAGAIN, you have
> broken the ABI.
> 
> A kernel syscall that used to return EWOULDBLOCK, now returns EAGAIN.
> 
> An application that checked only for EWOULDBLOCK might fail now that
> EAGAIN is being returned.
> 
> Is this a concern? I don't think it is. The POSIX standard, in all
> cases I could find, says the functions return "EAGAIN or EWOULDBLOCK",
> meaning that a conforming program must check for both.

I totally understand it would break the existing API. But having them
different has it's own set of problems since some applications do not
check for both.

> The alternative to Helge's patch is a glibc patch to check the return
> of *every* syscall and convert EWOULDBLOCK to EAGAIN. This approach
> has a cost to our syscall fast path. Therefore I am not as inclined to
> follow this approach.

Agreed. Just equate them in the kernel and we don't have to change any
other kernel code and I see no reason for glibc to trap them either.
Yes, there will be some minor fallout...but now we can saw we are compliant
with every other linux architecture in this regard.

thanks,
grant

> 
> Cheers,
> Carlos.
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From - Thu Nov 08 21:05:57 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex.c and EWOULDBLOCK vs. EAGAIN patch
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On Sat, May 15, 2010 at 01:27:49PM -0400, Kyle McMartin wrote:
> It's a two instruction penalty(*) in the kernel syscall return path, just
> do it there. I've got a box at Red Hat with all the source to the whole
> damn world on it we run greps against to look for dumb stuff like memcpy
> bugs.

Why look for it? Just change the kernel to not ever return one of them.

>  I'll toss a grep for EAGAIN and not EWOULDBLOCK and vice versa and
> see how much stuff might b0rk.

Please do...I'd be curious to see which programs might be affected and
if we care.

> We discussed this a couple years ago, and it ended up being a complete
> rats nest of error returns that needed fixing.
> 
> regards, Kyle.
> 
> *: CMPI,N(=), LDI, maybe a third since I don't remember how sign
> extension works off the top of my head.

Mispredicted branches cost something like 20-25 cycles. I forgot now but I
do know they aren't cheap.

I'd rather not add more hacks for this they are unlikely to ever
be removed again. I'd rather have status quo than add some hack
to the syscall return path.

thanks,
grant

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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: futex.c and EWOULDBLOCK vs. EAGAIN patch
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On Sat, May 15, 2010 at 04:59:52PM -0600, Grant Grundler wrote:
> On Sat, May 15, 2010 at 01:27:49PM -0400, Kyle McMartin wrote:
> > It's a two instruction penalty(*) in the kernel syscall return path, just
> > do it there. I've got a box at Red Hat with all the source to the whole
> > damn world on it we run greps against to look for dumb stuff like memcpy
> > bugs.
> 
> Why look for it? Just change the kernel to not ever return one of them.
> 

Because the failure case of just changing the #define in the kernel is a
runtime error for old code.

> >  I'll toss a grep for EAGAIN and not EWOULDBLOCK and vice versa and
> > see how much stuff might b0rk.
> 
> Please do...I'd be curious to see which programs might be affected and
> if we care.
> 
> > We discussed this a couple years ago, and it ended up being a complete
> > rats nest of error returns that needed fixing.
> > 
> > regards, Kyle.
> > 
> > *: CMPI,N(=), LDI, maybe a third since I don't remember how sign
> > extension works off the top of my head.
> 
> Mispredicted branches cost something like 20-25 cycles. I forgot now but I
> do know they aren't cheap.
> 

That's not a branch, Grant.

> I'd rather not add more hacks for this they are unlikely to ever
> be removed again. I'd rather have status quo than add some hack
> to the syscall return path.
> 

The alternative is to rebuild all of userspace, again.

regards, Kyle
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex.c and EWOULDBLOCK vs. EAGAIN patch
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> Since PARISC is the only Linux architecture which has different values
> for EAGAIN and EWOULDBLOCK, we are running in various issues.
> 
> One of them is, that e.g. glibc checks for EAGAIN instead of EWOULDBLOCK
> (and vise versa) in nptl/pthread_mutex_trylock.c. This doesn't hurt
> other architectures, but it hurts parisc.

Glibc should be fixed so that it is complient with IEEE Std 1003.1.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: futex.c and EWOULDBLOCK vs. EAGAIN patch
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On Sat, May 15, 2010 at 07:03:59PM -0400, Kyle McMartin wrote:
...
> > > *: CMPI,N(=), LDI, maybe a third since I don't remember how sign
> > > extension works off the top of my head.
> > 
> > Mispredicted branches cost something like 20-25 cycles. I forgot now but I
> > do know they aren't cheap.
> 
> That's not a branch, Grant.

DOh! sorry...you are right. /o\
I was totally missing the instruction nullification.

> > I'd rather not add more hacks for this they are unlikely to ever
> > be removed again. I'd rather have status quo than add some hack
> > to the syscall return path.
> 
> The alternative is to rebuild all of userspace, again.

All?
If I generate a list of debian packages that look at EWOULDBLOCK or EAGAIN,
couldn't we just regenerate those packages once the kernel change is in
place and the kernel header files pushed to debian experimental?
There can't be that many packages.

And of those that do, I believe most time the old binaries will generally
work since EWOULDBLOCK code paths are unlikely to get exercised. Or is
there evidence to the contrary?

thanks
grant
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: futex.c and EWOULDBLOCK vs. EAGAIN patch
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On Sun, May 16, 2010 at 10:12:07AM -0600, Grant Grundler wrote:
> If I generate a list of debian packages that look at EWOULDBLOCK or EAGAIN,
> couldn't we just regenerate those packages once the kernel change is in
> place and the kernel header files pushed to debian experimental?
> There can't be that many packages.
> 

Sure, but what about people running the old stable version of Debian or
something? We lose the ability to have (probably) useful userspace
running when kernels get bisected across the flag version.

> And of those that do, I believe most time the old binaries will generally
> work since EWOULDBLOCK code paths are unlikely to get exercised. Or is
> there evidence to the contrary?
> 

That's what we need to find out. :) Because it will "just work" on most
other operating systems I've been able to quickly grep for, people might
have been negligent.

I think Helge should definitely submit his very fine patches to
glibc/kernel wherever. As John points out, I looked up POSIX tonight and
as it stands they don't violate it technically (since the value is the
same) but they symbollically do. :)

regards, Kyle
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On 05/15/2010 11:02 PM, John David Anglin wrote:
> On Tue, 11 May 2010, Helge Deller wrote:
> 
>> On 05/11/2010 11:26 PM, John David Anglin wrote:
>>>> On 05/10/2010 09:20 PM, Helge Deller wrote:
>>>>> On 05/10/2010 04:56 PM, John David Anglin wrote:
>>>>>> Yes, just after sending, I noticed gcc testsuite and minifail were
>>>>>> broken on gsyprf11.  [...]
>>>>>>
>>>>>> The attached works better on gsyprf11.  I haven't tested it on anything
>>>>>> else.
>>>>
>>>> Hi Dave,
>>>>
>>>> I still can see segfaults of the minifail_dave.cpp program.
> 
> I haven't seen any abnormal segfaults with the attached change on
> my rp3440 and gsyprf11.  Need to flush in pte_wrprotect for minifail,
> and to flush in copy_user_page to fix occasional segfaults in sh.
> The flushes in kmap/kunmap weren't sufficient.

I wish could report success as well....
But I still do see segfaults (although they seem to happen not as often as before).
Which kernel do you test? I'm on 2.6.33.3 + your patches.

Helge
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On Sun, 16 May 2010, Helge Deller wrote:

> I wish could report success as well....
> But I still do see segfaults (although they seem to happen not as often as before).

Thanks again for testing.

I'm convinced that we have various race conditions in doing cache
user and kernel flushes that are not easily fixed.  For example,
in pte_wrprotect, it difficult to ensure that the cache is clean
in a SMP environment.  Think there are similar problems with
copy_user_page.

At the moment, I'm fairly pessimistic about finding a solution with
our current implementation of copy_user_page.  I've done more than a
hundred kernel builds, and while things are better, there are still
problems that look like cache corruption.  Often, it takes more than
a day for problems to appear.

> Which kernel do you test? I'm on 2.6.33.3 + your patches.

I'm on to 2.6.33.4.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: futex.c and EWOULDBLOCK vs. EAGAIN patch
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On Sat, May 15, 2010 at 1:27 PM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Sat, May 15, 2010 at 07:24:54AM -0400, Carlos O'Donell wrote:
>> An application that checked only for EWOULDBLOCK might fail now that
>> EAGAIN is being returned.
>>
>> Is this a concern? I don't think it is. The POSIX standard, in all
>> cases I could find, says the functions return "EAGAIN or EWOULDBLOCK",
>> meaning that a conforming program must check for both.
>>
>
> It's a two instruction penalty(*) in the kernel syscall return path, just
> do it there. I've got a box at Red Hat with all the source to the whole
> damn world on it we run greps against to look for dumb stuff like memcpy
> bugs. I'll toss a grep for EAGAIN and not EWOULDBLOCK and vice versa and
> see how much stuff might b0rk.

Is there any benefit to doing it in userspace?

As opposed to changing the kernel to define EGAIN == EWOULDBLOCK?

Both changes break ABI.

The userspace change makes the syscall return path a couple of
instructions slower.

The kernel change might break the future emulation of hpux application
on parisc linux?

> We discussed this a couple years ago, and it ended up being a complete
> rats nest of error returns that needed fixing.

If we set EAGAIN=EWOULDBLOCK in the kernel for parisc, would that be hard?

I'm just trying to understand and weigh the options.

Cheers,
Carlos.
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: threads and fork on machine with VIPT-WB cache
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On Sun, 16 May 2010, Helge Deller wrote:

> I wish could report success as well....
> But I still do see segfaults (although they seem to happen not as often as before).

For reference, see this discussion:
http://readlist.com/lists/vger.kernel.org/linux-kernel/54/270861.html

Dave
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On Sat, May 15, 2010 at 5:02 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> I haven't seen any abnormal segfaults with the attached change on
> my rp3440 and gsyprf11. =A0Need to flush in pte_wrprotect for minifai=
l,
> and to flush in copy_user_page to fix occasional segfaults in sh.
> The flushes in kmap/kunmap weren't sufficient.
>
> Still experimenting to see if number of flushes can be reduced, etc.

Applying your patch to 2.6.33, I had 2 hunk rejects.

I fixed up the rejects, but I was curious, what is your patch based on?

Cheers,
Carlos.
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> Applying your patch to 2.6.33, I had 2 hunk rejects.

Where were the rejects?  I don't think anything that I have changed
has changed since 2.6.33 was released.

> I fixed up the rejects, but I was curious, what is your patch based on?

git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-2.6.33.y.git

Included below is my current diff.  I have reworked pacache.S and cache.c
to make it easier to test various alternatives.  I added 64-bit support
to copy_user_page_asm and an implementation of clear_page_asm.  Routine
names have been revamped to distinguish implementations using the tmp
alias region.

I haven't tested all permutations, but I don't have a stable fix.

I think we need to do something similar to mips.  See their implementation
of kmap_coherent, kunmap_coherent, copy_user_highpage, copy_to_user_page,
copy_from_user_page.  Currently, our implementations of copy_user_page,
copy_to_user_page and copy_from_user_page all use non equivalent aliasing.
<http://readlist.com/lists/vger.kernel.org/linux-kernel/54/271417.html>
discusses why this is a ispecial problem on PA8800.

I like the mips approach in that the pte is setup in kmap_coherent.
This avoids doing anything special in tlb handler.  However, the
downside may be that our tmp alias region is quite large, and we
may need multiple regions for each cpu.

Possibly, the simplest thing to try is to implement copy_to_user_page
and copy_from_user_page using the tmp alias region.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 716634d..ad7df44 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -24,29 +24,46 @@
  * Hash function to index into a different SPINLOCK.
  * Since "a" is usually an address, use one spinlock per cacheline.
  */
-#  define ATOMIC_HASH_SIZE 4
-#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_HASH_SIZE (4096/L1_CACHE_BYTES)  /* 4 */
+#  define ATOMIC_HASH(a)      (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_USER_HASH(a) (&(__atomic_user_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
 
 extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
+extern arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 
 /* Can't use raw_spin_lock_irq because of #include problems, so
  * this is the substitute */
-#define _atomic_spin_lock_irqsave(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);		\
+#define _atomic_spin_lock_irqsave_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;		\
 	local_irq_save(f);			\
 	arch_spin_lock(s);			\
 } while(0)
 
-#define _atomic_spin_unlock_irqrestore(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);			\
+#define _atomic_spin_unlock_irqrestore_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;			\
 	arch_spin_unlock(s);				\
 	local_irq_restore(f);				\
 } while(0)
 
+/* kernel memory locks */
+#define _atomic_spin_lock_irqsave(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_HASH(l))
+
+/* userspace memory locks */
+#define _atomic_spin_lock_irqsave_user(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_USER_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore_user(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_USER_HASH(l))
 
 #else
 #  define _atomic_spin_lock_irqsave(l,f) do { local_irq_save(f); } while (0)
 #  define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
+#  define _atomic_spin_lock_irqsave_user(l,f) _atomic_spin_lock_irqsave(l,f)
+#  define _atomic_spin_unlock_irqrestore_user(l,f) _atomic_spin_unlock_irqrestore(l,f)
 #endif
 
 /* This should get optimized out since it's never called.
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7a73b61..b90c895 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -2,6 +2,7 @@
 #define _PARISC_CACHEFLUSH_H
 
 #include <linux/mm.h>
+#include <linux/uaccess.h>
 
 /* The usual comment is "Caches aren't brain-dead on the <architecture>".
  * Unfortunately, that doesn't apply to PA-RISC. */
@@ -104,21 +105,32 @@ void mark_rodata_ro(void);
 #define ARCH_HAS_KMAP
 
 void kunmap_parisc(void *addr);
+void *kmap_parisc(struct page *page);
 
 static inline void *kmap(struct page *page)
 {
 	might_sleep();
-	return page_address(page);
+	return kmap_parisc(page);
 }
 
 #define kunmap(page)			kunmap_parisc(page_address(page))
 
-#define kmap_atomic(page, idx)		page_address(page)
+static inline void *kmap_atomic(struct page *page, enum km_type idx)
+{
+	pagefault_disable();
+	return kmap_parisc(page);
+}
 
-#define kunmap_atomic(addr, idx)	kunmap_parisc(addr)
+static inline void kunmap_atomic(void *addr, enum km_type idx)
+{
+	kunmap_parisc(addr);
+	pagefault_enable();
+}
 
-#define kmap_atomic_pfn(pfn, idx)	page_address(pfn_to_page(pfn))
-#define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
+#define kmap_atomic_prot(page, idx, prot)	kmap_atomic(page, idx)
+#define kmap_atomic_pfn(pfn, idx)	kmap_atomic(pfn_to_page(pfn), (idx))
+#define kmap_atomic_to_page(ptr)	virt_to_page(kmap_atomic(virt_to_page(ptr), (enum km_type) 0))
+#define kmap_flush_unused()	do {} while(0)
 #endif
 
 #endif /* _PARISC_CACHEFLUSH_H */
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 0c705c3..7bc963e 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -55,6 +55,7 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 {
 	int err = 0;
 	int uval;
+	unsigned long flags;
 
 	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
 	 * our gateway page, and causes no end of trouble...
@@ -65,10 +66,15 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
 		return -EFAULT;
 
+	_atomic_spin_lock_irqsave_user(uaddr, flags);
+
 	err = get_user(uval, uaddr);
-	if (err) return -EFAULT;
-	if (uval == oldval)
-		err = put_user(newval, uaddr);
+	if (!err)
+		if (uval == oldval)
+			err = put_user(newval, uaddr);
+
+	_atomic_spin_unlock_irqrestore_user(uaddr, flags);
+
 	if (err) return -EFAULT;
 	return uval;
 }
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index a84cc1f..cca0f53 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -21,15 +21,18 @@
 #include <asm/types.h>
 #include <asm/cache.h>
 
-#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define clear_page(page)	clear_page_asm((void *)(page))
+#define copy_page(to,from)      copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
-void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
+extern void copy_page_asm(void *to, void *from);
+extern void clear_page_asm(void *page);
+extern void copy_user_page_asm(void *to, void *from, unsigned long vaddr);
+extern void clear_user_page_asm(void *page, unsigned long vaddr);
+extern void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+extern void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index a27d2e2..8050948 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -14,6 +14,7 @@
 #include <linux/bitops.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
+#include <linux/uaccess.h>
 
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
@@ -30,15 +31,21 @@
  */
 #define kern_addr_valid(addr)	(1)
 
+extern spinlock_t pa_pte_lock;
+extern spinlock_t pa_tlb_lock;
+
 /* Certain architectures need to do special things when PTEs
  * within a page table are directly modified.  Thus, the following
  * hook is made available.
  */
-#define set_pte(pteptr, pteval)                                 \
-        do{                                                     \
+#define set_pte(pteptr, pteval)					\
+        do {							\
+		unsigned long flags;				\
+		spin_lock_irqsave(&pa_pte_lock, flags);		\
                 *(pteptr) = (pteval);                           \
+		spin_unlock_irqrestore(&pa_pte_lock, flags);	\
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+#define set_pte_at(mm,addr,ptep,pteval)	set_pte(ptep, pteval)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -262,6 +269,7 @@ extern unsigned long *empty_zero_page;
 #define pte_none(x)     ((pte_val(x) == 0) || (pte_val(x) & _PAGE_FLUSH))
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
 #define pte_clear(mm,addr,xp)	do { pte_val(*(xp)) = 0; } while (0)
+#define pte_same(A,B)	(pte_val(A) == pte_val(B))
 
 #define pmd_flag(x)	(pmd_val(x) & PxD_FLAG_MASK)
 #define pmd_address(x)	((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
@@ -410,6 +418,7 @@ extern void paging_init (void);
 
 #define PG_dcache_dirty         PG_arch_1
 
+extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn);
 extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
 
 /* Encode and de-code a swap entry */
@@ -423,56 +432,83 @@ extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
 #define __pte_to_swp_entry(pte)		((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x)		((pte_t) { (x).val })
 
-static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+static inline void __flush_tlb_page(struct mm_struct *mm, unsigned long addr)
 {
-#ifdef CONFIG_SMP
-	if (!pte_young(*ptep))
-		return 0;
-	return test_and_clear_bit(xlate_pabit(_PAGE_ACCESSED_BIT), &pte_val(*ptep));
-#else
-	pte_t pte = *ptep;
-	if (!pte_young(pte))
-		return 0;
-	set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte));
-	return 1;
-#endif
+	unsigned long flags;
+
+	/* For one page, it's not worth testing the split_tlb variable.  */
+	spin_lock_irqsave(&pa_tlb_lock, flags);
+	mtsp(mm->context,1);
+	pdtlb(addr);
+	pitlb(addr);
+	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 }
 
-extern spinlock_t pa_dbit_lock;
+static inline int ptep_set_access_flags(struct vm_area_struct *vma, unsigned
+ long addr, pte_t *ptep, pte_t entry, int dirty)
+{
+	int changed;
+	unsigned long flags;
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	changed = !pte_same(*ptep, entry);
+	if (changed) {
+		*ptep = entry;
+	}
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
+	if (changed) {
+		__flush_tlb_page(vma->vm_mm, addr);
+	}
+	return changed;
+}
+
+static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+{
+	pte_t pte;
+	unsigned long flags;
+	int r;
+
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	pte = *ptep;
+	if (pte_young(pte)) {
+		*ptep = pte_mkold(pte);
+		r = 1;
+	} else {
+		r = 0;
+	}
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
+
+	return r;
+}
 
 struct mm_struct;
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-	pte_t old_pte;
-	pte_t pte;
+	pte_t pte, old_pte;
+	unsigned long flags;
 
-	spin_lock(&pa_dbit_lock);
+	spin_lock_irqsave(&pa_pte_lock, flags);
 	pte = old_pte = *ptep;
 	pte_val(pte) &= ~_PAGE_PRESENT;
 	pte_val(pte) |= _PAGE_FLUSH;
-	set_pte_at(mm,addr,ptep,pte);
-	spin_unlock(&pa_dbit_lock);
+	*ptep = pte;
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
 
 	return old_pte;
 }
 
-static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+static inline void ptep_set_wrprotect(struct vm_area_struct *vma, struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-#ifdef CONFIG_SMP
-	unsigned long new, old;
-
-	do {
-		old = pte_val(*ptep);
-		new = pte_val(pte_wrprotect(__pte (old)));
-	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
-#else
-	pte_t old_pte = *ptep;
-	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
-#endif
+	pte_t old_pte;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	old_pte = *ptep;
+	*ptep = pte_wrprotect(old_pte);
+	__flush_tlb_page(mm, addr);
+	flush_cache_page(vma, addr, pte_pfn(old_pte));
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
 }
 
-#define pte_same(A,B)	(pte_val(A) == pte_val(B))
-
 #endif /* !__ASSEMBLY__ */
 
 
@@ -504,6 +540,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 
 #define HAVE_ARCH_UNMAPPED_AREA
 
+#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
index d91357b..4653c77 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -160,7 +160,7 @@ static inline void set_eiem(unsigned long val)
    ldcd). */
 
 #define __PA_LDCW_ALIGNMENT	4
-#define __ldcw_align(a) ((volatile unsigned int *)a)
+#define __ldcw_align(a) (&(a)->slock)
 #define __LDCW	"ldcw,co"
 
 #endif /*!CONFIG_PA20*/
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index ec787b4..b2f35b2 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -137,6 +137,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -225,6 +226,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
@@ -290,5 +292,11 @@ int main(void)
 	BLANK();
 	DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
 	BLANK();
+
+#ifdef CONFIG_SMP
+	DEFINE(ASM_ATOMIC_HASH_SIZE_SHIFT, __builtin_ffs(ATOMIC_HASH_SIZE)-1);
+	DEFINE(ASM_ATOMIC_HASH_ENTRY_SHIFT, __builtin_ffs(sizeof(__atomic_hash[0]))-1);
+#endif
+
 	return 0;
 }
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index b6ed34d..7952ae4 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -336,9 +336,9 @@ __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
 	}
 }
 
-void flush_dcache_page(struct page *page)
+static void flush_user_dcache_page_internal(struct address_space *mapping,
+					    struct page *page)
 {
-	struct address_space *mapping = page_mapping(page);
 	struct vm_area_struct *mpnt;
 	struct prio_tree_iter iter;
 	unsigned long offset;
@@ -346,14 +346,6 @@ void flush_dcache_page(struct page *page)
 	pgoff_t pgoff;
 	unsigned long pfn = page_to_pfn(page);
 
-
-	if (mapping && !mapping_mapped(mapping)) {
-		set_bit(PG_dcache_dirty, &page->flags);
-		return;
-	}
-
-	flush_kernel_dcache_page(page);
-
 	if (!mapping)
 		return;
 
@@ -387,6 +379,19 @@ void flush_dcache_page(struct page *page)
 	}
 	flush_dcache_mmap_unlock(mapping);
 }
+
+void flush_dcache_page(struct page *page)
+{
+	struct address_space *mapping = page_mapping(page);
+
+	if (mapping && !mapping_mapped(mapping)) {
+		set_bit(PG_dcache_dirty, &page->flags);
+		return;
+	}
+
+	flush_kernel_dcache_page(page);
+	flush_user_dcache_page_internal(mapping, page);
+}
 EXPORT_SYMBOL(flush_dcache_page);
 
 /* Defined in arch/parisc/kernel/pacache.S */
@@ -395,17 +400,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -440,17 +434,26 @@ void __init parisc_setup_cache_timing(void)
 }
 
 extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
 
 void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 {
+#if 1
+	/* Clear user page using alias region.  */
+#if 0
 	unsigned long flags;
 
 	purge_kernel_dcache_page((unsigned long)page);
 	purge_tlb_start(flags);
 	pdtlb_kernel(page);
 	purge_tlb_end(flags);
+#endif
+
 	clear_user_page_asm(page, vaddr);
+#else
+	/* Clear user page using kernel mapping.  */
+	clear_page_asm(page);
+	flush_kernel_dcache_page_asm(page);
+#endif
 }
 EXPORT_SYMBOL(clear_user_page);
 
@@ -469,22 +472,15 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 		    struct page *pg)
 {
 	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
-	if (!parisc_requires_coherency())
-		flush_kernel_dcache_page_asm(vto);
+#if 0
+	copy_user_page_asm(vto, vfrom, vaddr);
+#else
+	copy_page_asm(vto, vfrom);
+	flush_kernel_dcache_page_asm(vto);
+#endif
 }
 EXPORT_SYMBOL(copy_user_page);
 
-#ifdef CONFIG_PA8X00
-
-void kunmap_parisc(void *addr)
-{
-	if (parisc_requires_coherency())
-		flush_kernel_dcache_page_addr(addr);
-}
-EXPORT_SYMBOL(kunmap_parisc);
-#endif
-
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {
@@ -577,3 +573,25 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 		__flush_cache_page(vma, vmaddr);
 
 }
+
+void *kmap_parisc(struct page *page)
+{
+	/* this is a killer.  There's no easy way to test quickly if
+	 * this page is dirty in any userspace.  Additionally, for
+	 * kernel alterations of the page, we'd need it invalidated
+	 * here anyway, so currently flush (and invalidate)
+	 * universally */
+	flush_user_dcache_page_internal(page_mapping(page), page);
+	return page_address(page);
+}
+EXPORT_SYMBOL(kmap_parisc);
+
+void kunmap_parisc(void *addr)
+{
+	/* flush and invalidate the kernel mapping.  We need the
+	 * invalidate so we don't have stale data at this cache
+	 * location the next time the page is mapped */
+	flush_kernel_dcache_page_addr(addr);
+}
+EXPORT_SYMBOL(kunmap_parisc);
+
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3a44f7f..42dbf32 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -45,7 +45,7 @@
 	.level 2.0
 #endif
 
-	.import         pa_dbit_lock,data
+	.import         pa_pte_lock,data
 
 	/* space_to_prot macro creates a prot id from a space id */
 
@@ -364,32 +364,6 @@
 	.align		32
 	.endm
 
-	/* The following are simple 32 vs 64 bit instruction
-	 * abstractions for the macros */
-	.macro		EXTR	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	extrd,u		\reg1,32+(\start),\length,\reg2
-#else
-	extrw,u		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEP	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	depd		\reg1,32+(\start),\length,\reg2
-#else
-	depw		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEPI	val,start,length,reg
-#ifdef CONFIG_64BIT
-	depdi		\val,32+(\start),\length,\reg
-#else
-	depwi		\val,\start,\length,\reg
-#endif
-	.endm
-
 	/* In LP64, the space contains part of the upper 32 bits of the
 	 * fault.  We have to extract this and place it in the va,
 	 * zeroing the corresponding bits in the space register */
@@ -442,19 +416,19 @@
 	 */
 	.macro		L2_ptep	pmd,pte,index,va,fault
 #if PT_NLEVELS == 3
-	EXTR		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
+	extru		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
 #else
-	EXTR		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
+	extru		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 #endif
-	DEP             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	dep             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	copy		%r0,\pte
 	ldw,s		\index(\pmd),\pmd
 	bb,>=,n		\pmd,_PxD_PRESENT_BIT,\fault
-	DEP		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
+	dep		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
 	copy		\pmd,%r9
 	SHLREG		%r9,PxD_VALUE_SHIFT,\pmd
-	EXTR		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
-	DEP		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	extru		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
+	dep		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
 	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
 	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
@@ -488,13 +462,46 @@
 	L2_ptep		\pgd,\pte,\index,\va,\fault
 	.endm
 
+	/* SMP lock for consistent PTE updates.  Unlocks and jumps
+	   to FAULT if the page is not present.  Note the preceeding
+	   load of the PTE can't be deleted since we can't fault holding
+	   the lock.  */ 
+	.macro		pte_lock	ptep,pte,spc,tmp,tmp1,fault
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n        0,\spc,2f
+	load32		PA(pa_pte_lock),\tmp1
+1:
+	LDCW		0(\tmp1),\tmp
+	cmpib,COND(=)         0,\tmp,1b
+	nop
+	LDREG		%r0(\ptep),\pte
+	bb,<,n		\pte,_PAGE_PRESENT_BIT,2f
+	ldi             1,\tmp
+	stw             \tmp,0(\tmp1)
+	b,n		\fault
+2:
+#endif
+	.endm
+
+	.macro		pte_unlock	spc,tmp,tmp1
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n        0,\spc,1f
+	ldi             1,\tmp
+	stw             \tmp,0(\tmp1)
+1:
+#endif
+	.endm
+
 	/* Set the _PAGE_ACCESSED bit of the PTE.  Be clever and
 	 * don't needlessly dirty the cache line if it was already set */
-	.macro		update_ptep	ptep,pte,tmp,tmp1
-	ldi		_PAGE_ACCESSED,\tmp1
-	or		\tmp1,\pte,\tmp
-	and,COND(<>)	\tmp1,\pte,%r0
-	STREG		\tmp,0(\ptep)
+	.macro		update_ptep	ptep,pte,spc,tmp,tmp1,fault
+	bb,<,n		\pte,_PAGE_ACCESSED_BIT,3f
+	pte_lock	\ptep,\pte,\spc,\tmp,\tmp1,\fault
+	ldi		_PAGE_ACCESSED,\tmp
+	or		\tmp,\pte,\pte
+	STREG		\pte,0(\ptep)
+	pte_unlock	\spc,\tmp,\tmp1
+3:
 	.endm
 
 	/* Set the dirty bit (and accessed bit).  No need to be
@@ -605,7 +612,7 @@
 	depdi		0,31,32,\tmp
 #endif
 	copy		\va,\tmp1
-	DEPI		0,31,23,\tmp1
+	depi		0,31,23,\tmp1
 	cmpb,COND(<>),n	\tmp,\tmp1,\fault
 	ldi		(_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot
 	depd,z		\prot,8,7,\prot
@@ -622,6 +629,39 @@
 	or		%r26,%r0,\pte
 	.endm 
 
+	/* Save PTE for recheck if SMP.  */
+	.macro		save_pte	pte,tmp
+#ifdef CONFIG_SMP
+	copy		\pte,\tmp
+#endif
+	.endm
+
+	/* Reload the PTE and purge the data TLB entry if the new
+	   value is different from the old one.  */
+	.macro		dtlb_recheck	ptep,old_pte,spc,va,tmp
+#ifdef CONFIG_SMP
+	LDREG		%r0(\ptep),\tmp
+	cmpb,COND(=),n	\old_pte,\tmp,1f
+	mfsp		%sr1,\tmp
+	mtsp		\spc,%sr1
+	pdtlb,l		%r0(%sr1,\va)
+	mtsp		\tmp,%sr1
+1:
+#endif
+	.endm
+
+	.macro		itlb_recheck	ptep,old_pte,spc,va,tmp
+#ifdef CONFIG_SMP
+	LDREG		%r0(\ptep),\tmp
+	cmpb,COND(=),n	\old_pte,\tmp,1f
+	mfsp		%sr1,\tmp
+	mtsp		\spc,%sr1
+	pitlb,l		%r0(%sr1,\va)
+	mtsp		\tmp,%sr1
+1:
+#endif
+	.endm
+
 
 	/*
 	 * Align fault_vector_20 on 4K boundary so that both
@@ -758,6 +798,10 @@ ENTRY(__kernel_thread)
 
 	STREG	%r22, PT_GR22(%r1)	/* save r22 (arg5) */
 	copy	%r0, %r22		/* user_tid */
+	copy	%r0, %r21		/* child_tid */
+#else
+	stw	%r0, -52(%r30)	     	/* user_tid */
+	stw	%r0, -56(%r30)	     	/* child_tid */
 #endif
 	STREG	%r26, PT_GR26(%r1)  /* Store function & argument for child */
 	STREG	%r25, PT_GR25(%r1)
@@ -765,7 +809,7 @@ ENTRY(__kernel_thread)
 	ldo	CLONE_VM(%r26), %r26   /* Force CLONE_VM since only init_mm */
 	or	%r26, %r24, %r26      /* will have kernel mappings.	 */
 	ldi	1, %r25			/* stack_start, signals kernel thread */
-	stw	%r0, -52(%r30)	     	/* user_tid */
+	ldi	0, %r23			/* child_stack_size */
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
@@ -972,7 +1016,10 @@ intr_check_sig:
 	BL	do_notify_resume,%r2
 	copy	%r16, %r26			/* struct pt_regs *regs */
 
-	b,n	intr_check_sig
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 intr_restore:
 	copy            %r16,%r29
@@ -997,13 +1044,6 @@ intr_restore:
 
 	rfi
 	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
 
 #ifndef CONFIG_PREEMPT
 # define intr_do_preempt	intr_restore
@@ -1026,14 +1066,12 @@ intr_do_resched:
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	ldil	L%intr_check_sig, %r2
-#ifndef CONFIG_64BIT
-	b	schedule
-#else
-	load32	schedule, %r20
-	bv	%r0(%r20)
-#endif
-	ldo	R%intr_check_sig(%r2), %r2
+	BL	schedule,%r2
+	nop
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 	/* preempt the current task on returning to kernel
 	 * mode from an interrupt, iff need_resched is set,
@@ -1214,11 +1252,12 @@ dtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,dtlb_check_alias_20w
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1,dtlb_check_alias_20w
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-	
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1238,11 +1277,10 @@ nadtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,nadtlb_check_flush_20w
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1272,8 +1310,9 @@ dtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_11
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1,dtlb_check_alias_11
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
@@ -1283,6 +1322,7 @@ dtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1321,11 +1361,9 @@ nadtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_11
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
-
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
@@ -1333,6 +1371,7 @@ nadtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1368,13 +1407,15 @@ dtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_20
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1,dtlb_check_alias_20
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1394,13 +1435,13 @@ nadtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_20
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 	
         idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1508,11 +1549,12 @@ itlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1,itlb_fault
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-	
 	iitlbt          pte,prot
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1526,8 +1568,9 @@ itlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1,itlb_fault
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
@@ -1537,6 +1580,7 @@ itlb_miss_11:
 	iitlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1548,13 +1592,15 @@ itlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1,itlb_fault
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0	
 
 	iitlbt          pte,prot
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1570,29 +1616,14 @@ dbit_trap_20w:
 
 	L3_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20w
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20w:
-	LDCW		0(t0),t1
-	cmpib,COND(=)         0,t1,dbit_spin_20w
-	nop
-
-dbit_nolock_20w:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-		
 	idtlbt          pte,prot
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20w
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20w:
-#endif
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1606,35 +1637,21 @@ dbit_trap_11:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_11
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_11:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_11
-	nop
-
-dbit_nolock_11:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
-	mfsp            %sr1,t1  /* Save sr1 so we can use it in tlb inserts */
+	mfsp            %sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
 	idtlba		pte,(%sr1,va)
 	idtlbp		prot,(%sr1,va)
 
-	mtsp            t1, %sr1     /* Restore sr1 */
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_11
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_11:
-#endif
+	mtsp            t0, %sr1     /* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1646,32 +1663,17 @@ dbit_trap_20:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_20
-	nop
-
-dbit_nolock_20:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
-	f_extend	pte,t1
+	f_extend	pte,t0
 	
         idtlbt          pte,prot
-
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20:
-#endif
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1772,9 +1774,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1804,7 +1806,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1823,8 +1825,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1847,7 +1850,9 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
@@ -2076,9 +2081,10 @@ syscall_restore:
 	LDREG	TASK_PT_GR31(%r1),%r31	   /* restore syscall rp */
 
 	/* NOTE: We use rsm/ssm pair to make this operation atomic */
+	LDREG   TASK_PT_GR30(%r1),%r1              /* Get user sp */
 	rsm     PSW_SM_I, %r0
-	LDREG   TASK_PT_GR30(%r1),%r30             /* restore user sp */
-	mfsp	%sr3,%r1			   /* Get users space id */
+	copy    %r1,%r30                           /* Restore user sp */
+	mfsp    %sr3,%r1                           /* Get user space id */
 	mtsp    %r1,%sr7                           /* Restore sr7 */
 	ssm     PSW_SM_I, %r0
 
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 09b77b2..b2f0d3d 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -277,7 +277,7 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -288,54 +288,54 @@ ENTRY(copy_user_page_asm)
 	 * GCC probably can do this just as well.
 	 */
 
-	ldd		0(%r25), %r19
+	ldd		0(%r25), %r20
 	ldi		(PAGE_SIZE / 128), %r1
 
 	ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
 	ldw		128(%r25), %r0		/* prefetch 2 */
 
-1:	ldd		8(%r25), %r20
+1:	ldd		8(%r25), %r21
 	ldw		192(%r25), %r0		/* prefetch 3 */
 	ldw		256(%r25), %r0		/* prefetch 4 */
 
-	ldd		16(%r25), %r21
-	ldd		24(%r25), %r22
-	std		%r19, 0(%r26)
-	std		%r20, 8(%r26)
-
-	ldd		32(%r25), %r19
-	ldd		40(%r25), %r20
-	std		%r21, 16(%r26)
-	std		%r22, 24(%r26)
-
-	ldd		48(%r25), %r21
-	ldd		56(%r25), %r22
-	std		%r19, 32(%r26)
-	std		%r20, 40(%r26)
-
-	ldd		64(%r25), %r19
-	ldd		72(%r25), %r20
-	std		%r21, 48(%r26)
-	std		%r22, 56(%r26)
-
-	ldd		80(%r25), %r21
-	ldd		88(%r25), %r22
-	std		%r19, 64(%r26)
-	std		%r20, 72(%r26)
-
-	ldd		 96(%r25), %r19
-	ldd		104(%r25), %r20
-	std		%r21, 80(%r26)
-	std		%r22, 88(%r26)
-
-	ldd		112(%r25), %r21
-	ldd		120(%r25), %r22
-	std		%r19, 96(%r26)
-	std		%r20, 104(%r26)
+	ldd		16(%r25), %r22
+	ldd		24(%r25), %r24
+	std		%r20, 0(%r26)
+	std		%r21, 8(%r26)
+
+	ldd		32(%r25), %r20
+	ldd		40(%r25), %r21
+	std		%r22, 16(%r26)
+	std		%r24, 24(%r26)
+
+	ldd		48(%r25), %r22
+	ldd		56(%r25), %r24
+	std		%r20, 32(%r26)
+	std		%r21, 40(%r26)
+
+	ldd		64(%r25), %r20
+	ldd		72(%r25), %r21
+	std		%r22, 48(%r26)
+	std		%r24, 56(%r26)
+
+	ldd		80(%r25), %r22
+	ldd		88(%r25), %r24
+	std		%r20, 64(%r26)
+	std		%r21, 72(%r26)
+
+	ldd		96(%r25), %r20
+	ldd		104(%r25), %r21
+	std		%r22, 80(%r26)
+	std		%r24, 88(%r26)
+
+	ldd		112(%r25), %r22
+	ldd		120(%r25), %r24
+	std		%r20, 96(%r26)
+	std		%r21, 104(%r26)
 
 	ldo		128(%r25), %r25
-	std		%r21, 112(%r26)
-	std		%r22, 120(%r26)
+	std		%r22, 112(%r26)
+	std		%r24, 120(%r26)
 	ldo		128(%r26), %r26
 
 	/* conditional branches nullify on forward taken branch, and on
@@ -343,7 +343,7 @@ ENTRY(copy_user_page_asm)
 	 * The ldd should only get executed if the branch is taken.
 	 */
 	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
-	ldd		0(%r25), %r19		/* start next loads */
+	ldd		0(%r25), %r20		/* start next loads */
 
 #else
 
@@ -354,52 +354,116 @@ ENTRY(copy_user_page_asm)
 	 * the full 64 bit register values on interrupt, we can't
 	 * use ldd/std on a 32 bit kernel.
 	 */
-	ldw		0(%r25), %r19
+	ldw		0(%r25), %r20
 	ldi		(PAGE_SIZE / 64), %r1
 
 1:
-	ldw		4(%r25), %r20
-	ldw		8(%r25), %r21
-	ldw		12(%r25), %r22
-	stw		%r19, 0(%r26)
-	stw		%r20, 4(%r26)
-	stw		%r21, 8(%r26)
-	stw		%r22, 12(%r26)
-	ldw		16(%r25), %r19
-	ldw		20(%r25), %r20
-	ldw		24(%r25), %r21
-	ldw		28(%r25), %r22
-	stw		%r19, 16(%r26)
-	stw		%r20, 20(%r26)
-	stw		%r21, 24(%r26)
-	stw		%r22, 28(%r26)
-	ldw		32(%r25), %r19
-	ldw		36(%r25), %r20
-	ldw		40(%r25), %r21
-	ldw		44(%r25), %r22
-	stw		%r19, 32(%r26)
-	stw		%r20, 36(%r26)
-	stw		%r21, 40(%r26)
-	stw		%r22, 44(%r26)
-	ldw		48(%r25), %r19
-	ldw		52(%r25), %r20
-	ldw		56(%r25), %r21
-	ldw		60(%r25), %r22
-	stw		%r19, 48(%r26)
-	stw		%r20, 52(%r26)
+	ldw		4(%r25), %r21
+	ldw		8(%r25), %r22
+	ldw		12(%r25), %r24
+	stw		%r20, 0(%r26)
+	stw		%r21, 4(%r26)
+	stw		%r22, 8(%r26)
+	stw		%r24, 12(%r26)
+	ldw		16(%r25), %r20
+	ldw		20(%r25), %r21
+	ldw		24(%r25), %r22
+	ldw		28(%r25), %r24
+	stw		%r20, 16(%r26)
+	stw		%r21, 20(%r26)
+	stw		%r22, 24(%r26)
+	stw		%r24, 28(%r26)
+	ldw		32(%r25), %r20
+	ldw		36(%r25), %r21
+	ldw		40(%r25), %r22
+	ldw		44(%r25), %r24
+	stw		%r20, 32(%r26)
+	stw		%r21, 36(%r26)
+	stw		%r22, 40(%r26)
+	stw		%r24, 44(%r26)
+	ldw		48(%r25), %r20
+	ldw		52(%r25), %r21
+	ldw		56(%r25), %r22
+	ldw		60(%r25), %r24
+	stw		%r20, 48(%r26)
+	stw		%r21, 52(%r26)
 	ldo		64(%r25), %r25
-	stw		%r21, 56(%r26)
-	stw		%r22, 60(%r26)
+	stw		%r22, 56(%r26)
+	stw		%r24, 60(%r26)
 	ldo		64(%r26), %r26
 	addib,COND(>),n	-1, %r1, 1b
-	ldw		0(%r25), %r19
+	ldw		0(%r25), %r20
 #endif
 	bv		%r0(%r2)
 	nop
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
+
+ENTRY(clear_page_asm)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+#ifdef CONFIG_64BIT
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:
+	std		%r0, 0(%r26)
+	std		%r0, 8(%r26)
+	std		%r0, 16(%r26)
+	std		%r0, 24(%r26)
+	std		%r0, 32(%r26)
+	std		%r0, 40(%r26)
+	std		%r0, 48(%r26)
+	std		%r0, 56(%r26)
+	std		%r0, 64(%r26)
+	std		%r0, 72(%r26)
+	std		%r0, 80(%r26)
+	std		%r0, 88(%r26)
+	std		%r0, 96(%r26)
+	std		%r0, 104(%r26)
+	std		%r0, 112(%r26)
+	std		%r0, 120(%r26)
+
+	/* Conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
+
+#else
+
+	ldi		(PAGE_SIZE / 64), %r1
+
+1:
+	stw		%r0, 0(%r26)
+	stw		%r0, 4(%r26)
+	stw		%r0, 8(%r26)
+	stw		%r0, 12(%r26)
+	stw		%r0, 16(%r26)
+	stw		%r0, 20(%r26)
+	stw		%r0, 24(%r26)
+	stw		%r0, 28(%r26)
+	stw		%r0, 32(%r26)
+	stw		%r0, 36(%r26)
+	stw		%r0, 40(%r26)
+	stw		%r0, 44(%r26)
+	stw		%r0, 48(%r26)
+	stw		%r0, 52(%r26)
+	stw		%r0, 56(%r26)
+	stw		%r0, 60(%r26)
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		64(%r26), %r26
+#endif
+
+	bv		%r0(%r2)
+	nop
+	.exit
+
+	.procend
+ENDPROC(clear_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,7 +486,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
 
 	/*
 	 * We can't do this since copy_user_page is used to bring in
@@ -449,9 +512,9 @@ ENTRY(copy_user_page_asm)
 	ldil		L%(TMPALIAS_MAP_START), %r28
 	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
-	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
+	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
@@ -464,12 +527,88 @@ ENTRY(copy_user_page_asm)
 	depwi		1, 9,1, %r29		/* Form aliased virtual address 'from' */
 #endif
 
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock, %r1
+	ldo		R%pa_tlb_lock(%r1), %r24
+	rsm		PSW_SM_I, %r22
+1:
+	LDCW		0(%r24),%r25
+	cmpib,COND(=)	0,%r25,1b
+	nop
+#endif
+
 	/* Purge any old translations */
 
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
 
-	ldi		64, %r1
+#ifdef CONFIG_SMP
+	ldi		1,%r25
+	stw		%r25,0(%r24)
+	mtsm		%r22
+#endif
+
+#ifdef CONFIG_64BIT
+
+	ldd		0(%r29), %r20
+	ldi		(PAGE_SIZE / 128), %r1
+
+	ldw		64(%r29), %r0		/* prefetch 1 cacheline ahead */
+	ldw		128(%r29), %r0		/* prefetch 2 */
+
+2:	ldd		8(%r29), %r21
+	ldw		192(%r29), %r0		/* prefetch 3 */
+	ldw		256(%r29), %r0		/* prefetch 4 */
+
+	ldd		16(%r29), %r22
+	ldd		24(%r29), %r24
+	std		%r20, 0(%r28)
+	std		%r21, 8(%r28)
+
+	ldd		32(%r29), %r20
+	ldd		40(%r29), %r21
+	std		%r22, 16(%r28)
+	std		%r24, 24(%r28)
+
+	ldd		48(%r29), %r22
+	ldd		56(%r29), %r24
+	std		%r20, 32(%r28)
+	std		%r21, 40(%r28)
+
+	ldd		64(%r29), %r20
+	ldd		72(%r29), %r21
+	std		%r22, 48(%r28)
+	std		%r24, 56(%r28)
+
+	ldd		80(%r29), %r22
+	ldd		88(%r29), %r24
+	std		%r20, 64(%r28)
+	std		%r21, 72(%r28)
+
+	ldd		96(%r29), %r20
+	ldd		104(%r29), %r21
+	std		%r22, 80(%r28)
+	std		%r24, 88(%r28)
+
+	ldd		112(%r29), %r22
+	ldd		120(%r29), %r24
+	std		%r20, 96(%r28)
+	std		%r21, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r22, 112(%r28)
+	std		%r24, 120(%r28)
+
+	fdc		0(%r28)
+	ldo		64(%r28), %r28
+	fdc		0(%r28)
+	ldo		64(%r28), %r28
+	addib,COND(>),n	-1, %r1, 2b
+	ldd		0(%r29), %r20		/* start next loads */
+
+#else
+
+	ldi		(PAGE_SIZE / 64), %r1
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,53 +619,57 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
-	ldw		4(%r29), %r20
-	ldw		8(%r29), %r21
-	ldw		12(%r29), %r22
-	stw		%r19, 0(%r28)
-	stw		%r20, 4(%r28)
-	stw		%r21, 8(%r28)
-	stw		%r22, 12(%r28)
-	ldw		16(%r29), %r19
-	ldw		20(%r29), %r20
-	ldw		24(%r29), %r21
-	ldw		28(%r29), %r22
-	stw		%r19, 16(%r28)
-	stw		%r20, 20(%r28)
-	stw		%r21, 24(%r28)
-	stw		%r22, 28(%r28)
-	ldw		32(%r29), %r19
-	ldw		36(%r29), %r20
-	ldw		40(%r29), %r21
-	ldw		44(%r29), %r22
-	stw		%r19, 32(%r28)
-	stw		%r20, 36(%r28)
-	stw		%r21, 40(%r28)
-	stw		%r22, 44(%r28)
-	ldw		48(%r29), %r19
-	ldw		52(%r29), %r20
-	ldw		56(%r29), %r21
-	ldw		60(%r29), %r22
-	stw		%r19, 48(%r28)
-	stw		%r20, 52(%r28)
-	stw		%r21, 56(%r28)
-	stw		%r22, 60(%r28)
-	ldo		64(%r28), %r28
-	addib,COND(>)		-1, %r1,1b
+2:
+	ldw		0(%r29), %r20
+	ldw		4(%r29), %r21
+	ldw		8(%r29), %r22
+	ldw		12(%r29), %r24
+	stw		%r20, 0(%r28)
+	stw		%r21, 4(%r28)
+	stw		%r22, 8(%r28)
+	stw		%r24, 12(%r28)
+	ldw		16(%r29), %r20
+	ldw		20(%r29), %r21
+	ldw		24(%r29), %r22
+	ldw		28(%r29), %r24
+	stw		%r20, 16(%r28)
+	stw		%r21, 20(%r28)
+	stw		%r22, 24(%r28)
+	stw		%r24, 28(%r28)
+	ldw		32(%r29), %r20
+	ldw		36(%r29), %r21
+	ldw		40(%r29), %r22
+	ldw		44(%r29), %r24
+	stw		%r20, 32(%r28)
+	stw		%r21, 36(%r28)
+	stw		%r22, 40(%r28)
+	stw		%r24, 44(%r28)
+	ldw		48(%r29), %r20
+	ldw		52(%r29), %r21
+	ldw		56(%r29), %r22
+	ldw		60(%r29), %r24
+	stw		%r20, 48(%r28)
+	stw		%r21, 52(%r28)
+	stw		%r22, 56(%r28)
+	stw		%r24, 60(%r28)
+	fdc		0(%r28)
+	ldo		32(%r28), %r28
+	fdc		0(%r28)
+	ldo		32(%r28), %r28
+	addib,COND(>)		-1, %r1,2b
 	ldo		64(%r29), %r29
 
+#endif
+
+	sync
 	bv		%r0(%r2)
 	nop
 	.exit
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -548,17 +691,33 @@ ENTRY(__clear_user_page_asm)
 	depwi		0, 31,12, %r28		/* Clear any offset bits */
 #endif
 
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock, %r1
+	ldo		R%pa_tlb_lock(%r1), %r24
+	rsm		PSW_SM_I, %r22
+1:
+	LDCW		0(%r24),%r25
+	cmpib,COND(=)	0,%r25,1b
+	nop
+#endif
+
 	/* Purge any old translation */
 
 	pdtlb		0(%r28)
 
+#ifdef CONFIG_SMP
+	ldi		1,%r25
+	stw		%r25,0(%r24)
+	mtsm		%r22
+#endif
+
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
 
 	/* PREFETCH (Write) has not (yet) been proven to help here */
 	/* #define	PREFETCHW_OP	ldd		256(%0), %r0 */
 
-1:	std		%r0, 0(%r28)
+2:	std		%r0, 0(%r28)
 	std		%r0, 8(%r28)
 	std		%r0, 16(%r28)
 	std		%r0, 24(%r28)
@@ -574,13 +733,13 @@ ENTRY(__clear_user_page_asm)
 	std		%r0, 104(%r28)
 	std		%r0, 112(%r28)
 	std		%r0, 120(%r28)
-	addib,COND(>)		-1, %r1, 1b
+	addib,COND(>)		-1, %r1, 2b
 	ldo		128(%r28), %r28
 
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
+2:
 	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
@@ -597,7 +756,7 @@ ENTRY(__clear_user_page_asm)
 	stw		%r0, 52(%r28)
 	stw		%r0, 56(%r28)
 	stw		%r0, 60(%r28)
-	addib,COND(>)		-1, %r1, 1b
+	addib,COND(>)		-1, %r1, 2b
 	ldo		64(%r28), %r28
 #endif	/* CONFIG_64BIT */
 
@@ -606,7 +765,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_kernel_dcache_page_asm)
 	.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index df65366..a5314df 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -159,4 +159,5 @@ EXPORT_SYMBOL(_mcount);
 #endif
 
 /* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
+EXPORT_SYMBOL(clear_page_asm);
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index cb71f3d..84b3239 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -128,6 +128,14 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_INFO "The 32-bit Kernel has started...\n");
 #endif
 
+	/* Consistency check on the size and alignments of our spinlocks */
+#ifdef CONFIG_SMP
+	BUILD_BUG_ON(sizeof(arch_spinlock_t) != __PA_LDCW_ALIGNMENT);
+	BUG_ON((unsigned long)&__atomic_hash[0] & (__PA_LDCW_ALIGNMENT-1));
+	BUG_ON((unsigned long)&__atomic_hash[1] & (__PA_LDCW_ALIGNMENT-1));
+#endif
+	BUILD_BUG_ON((1<<L1_CACHE_SHIFT) != L1_CACHE_BYTES);
+
 	pdc_console_init();
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f5f9602..68e75ce 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -47,18 +47,17 @@ ENTRY(linux_gateway_page)
 	KILL_INSN
 	.endr
 
-	/* ADDRESS 0xb0 to 0xb4, lws uses 1 insns for entry */
+	/* ADDRESS 0xb0 to 0xb8, lws uses two insns for entry */
 	/* Light-weight-syscall entry must always be located at 0xb0 */
 	/* WARNING: Keep this number updated with table size changes */
 #define __NR_lws_entries (2)
 
 lws_entry:
-	/* Unconditional branch to lws_start, located on the 
-	   same gateway page */
-	b,n	lws_start
+	gate	lws_start, %r0		/* increase privilege */
+	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
 
-	/* Fill from 0xb4 to 0xe0 */
-	.rept 11
+	/* Fill from 0xb8 to 0xe0 */
+	.rept 10
 	KILL_INSN
 	.endr
 
@@ -423,9 +422,6 @@ tracesys_sigexit:
 
 	*********************************************************/
 lws_start:
-	/* Gate and ensure we return to userspace */
-	gate	.+8, %r0
-	depi	3, 31, 2, %r31	/* Ensure we return to userspace */
 
 #ifdef CONFIG_64BIT
 	/* FIXME: If we are a 64-bit kernel just
@@ -442,7 +438,7 @@ lws_start:
 #endif	
 
         /* Is the lws entry number valid? */
-	comiclr,>>=	__NR_lws_entries, %r20, %r0
+	comiclr,>>	__NR_lws_entries, %r20, %r0
 	b,n	lws_exit_nosys
 
 	/* WARNING: Trashing sr2 and sr3 */
@@ -473,7 +469,7 @@ lws_exit:
 	/* now reset the lowest bit of sp if it was set */
 	xor	%r30,%r1,%r30
 #endif
-	be,n	0(%sr3, %r31)
+	be,n	0(%sr7, %r31)
 
 
 	
@@ -529,7 +525,6 @@ lws_compare_and_swap32:
 #endif
 
 lws_compare_and_swap:
-#ifdef CONFIG_SMP
 	/* Load start of lock table */
 	ldil	L%lws_lock_start, %r20
 	ldo	R%lws_lock_start(%r20), %r28
@@ -572,8 +567,6 @@ cas_wouldblock:
 	ldo	2(%r0), %r28				/* 2nd case */
 	b	lws_exit				/* Contended... */
 	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
-#endif
-/* CONFIG_SMP */
 
 	/*
 		prev = *addr;
@@ -601,13 +594,11 @@ cas_action:
 1:	ldw	0(%sr3,%r26), %r28
 	sub,<>	%r28, %r25, %r0
 2:	stw	%r24, 0(%sr3,%r26)
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	/* Clear thread register indicator */
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	/* Return to userspace, set no error */
 	b	lws_exit
@@ -615,12 +606,10 @@ cas_action:
 
 3:		
 	/* Error occured on load or store */
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	b	lws_exit
 	ldo	-EFAULT(%r0),%r21	/* set errno */
@@ -672,7 +661,6 @@ ENTRY(sys_call_table64)
 END(sys_call_table64)
 #endif
 
-#ifdef CONFIG_SMP
 	/*
 		All light-weight-syscall atomic operations 
 		will use this set of locks 
@@ -694,8 +682,6 @@ ENTRY(lws_lock_start)
 	.endr
 END(lws_lock_start)
 	.previous
-#endif
-/* CONFIG_SMP for lws_lock_start */
 
 .end
 
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 8b58bf0..804b024 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -47,7 +47,7 @@
 			  /*  dumped to the console via printk)          */
 
 #if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
-DEFINE_SPINLOCK(pa_dbit_lock);
+DEFINE_SPINLOCK(pa_pte_lock);
 #endif
 
 static void parisc_show_stack(struct task_struct *task, unsigned long *sp,
diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c
index 353963d..bae6a86 100644
--- a/arch/parisc/lib/bitops.c
+++ b/arch/parisc/lib/bitops.c
@@ -15,6 +15,9 @@
 arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
 	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
 };
+arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
+	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
+};
 #endif
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/math-emu/decode_exc.c b/arch/parisc/math-emu/decode_exc.c
index 3ca1c61..27a7492 100644
--- a/arch/parisc/math-emu/decode_exc.c
+++ b/arch/parisc/math-emu/decode_exc.c
@@ -342,6 +342,7 @@ decode_fpu(unsigned int Fpu_register[], unsigned int trap_counts[])
 		return SIGNALCODE(SIGFPE, FPE_FLTINV);
 	  case DIVISIONBYZEROEXCEPTION:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
+		Clear_excp_register(exception_index);
 	  	return SIGNALCODE(SIGFPE, FPE_FLTDIV);
 	  case INEXACTEXCEPTION:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
diff --git a/mm/memory.c b/mm/memory.c
index 09e4b1b..21c2916 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -616,7 +616,7 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	 * in the parent and the child
 	 */
 	if (is_cow_mapping(vm_flags)) {
-		ptep_set_wrprotect(src_mm, addr, src_pte);
+		ptep_set_wrprotect(vma, src_mm, addr, src_pte);
 		pte = pte_wrprotect(pte);
 	}
 
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Subject: [PATCH 172/199] arch/parisc/kernel/pa7300lc.c: Checkpatch cleanup
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arch/parisc/kernel/pa7300lc.c:3: ERROR: trailing whitespace

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/kernel/pa7300lc.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/pa7300lc.c b/arch/parisc/kernel/pa7300lc.c
index 8a89780..fa6ca3a 100644
--- a/arch/parisc/kernel/pa7300lc.c
+++ b/arch/parisc/kernel/pa7300lc.c
@@ -1,6 +1,6 @@
 /*
  *   linux/arch/parisc/kernel/pa7300lc.c
- *	- PA7300LC-specific functions	
+ *	- PA7300LC-specific functions
  *
  *   Copyright (C) 2000 Philipp Rumpf */
 
-- 
1.7.1.251.gf80a2

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Subject: [PATCH 173/199] arch/parisc/kernel/sys32.h: Checkpatch cleanup
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arch/parisc/kernel/sys32.h:1: ERROR: trailing whitespace
arch/parisc/kernel/sys32.h:33: WARNING: space prohibited between function name and open parenthesis '('

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/kernel/sys32.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/sys32.h b/arch/parisc/kernel/sys32.h
index 06c2090..4bcda8d 100644
--- a/arch/parisc/kernel/sys32.h
+++ b/arch/parisc/kernel/sys32.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *    Copyright (C) 2002 Richard Hirst <rhirst at parisc-linux.org>
  *    Copyright (C) 2003 James Bottomley <jejb at parisc-linux.org>
  *    Copyright (C) 2003 Randolph Chung <tausq with parisc-linux.org>
@@ -30,7 +30,7 @@
     mm_segment_t old_fs = get_fs(); \
     set_fs(KERNEL_DS); \
     ret = syscall(args); \
-    set_fs (old_fs); \
+    set_fs(old_fs); \
 }
 
 #ifdef CONFIG_COMPAT
-- 
1.7.1.251.gf80a2

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From: Andrea Gelmini <andrea.gelmini@gelma.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 175/199] arch/parisc/lib/memset.c: Checkpatch cleanup
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arch/parisc/lib/memset.c:28: WARNING: space prohibited between function name and open parenthesis '('
arch/parisc/lib/memset.c:33: ERROR: that open brace { should be on the previous line
arch/parisc/lib/memset.c:33: WARNING: suspect code indent for conditional statements (2, 6)
arch/parisc/lib/memset.c:47: ERROR: that open brace { should be on the previous line
arch/parisc/lib/memset.c:47: WARNING: suspect code indent for conditional statements (6, 10)
arch/parisc/lib/memset.c:56: ERROR: that open brace { should be on the previous line
arch/parisc/lib/memset.c:56: WARNING: suspect code indent for conditional statements (6, 10)
arch/parisc/lib/memset.c:73: ERROR: that open brace { should be on the previous line
arch/parisc/lib/memset.c:73: WARNING: suspect code indent for conditional statements (6, 10)
arch/parisc/lib/memset.c:83: ERROR: that open brace { should be on the previous line
arch/parisc/lib/memset.c:83: WARNING: suspect code indent for conditional statements (2, 6)

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/lib/memset.c |   23 +++++++++--------------
 1 files changed, 9 insertions(+), 14 deletions(-)

diff --git a/arch/parisc/lib/memset.c b/arch/parisc/lib/memset.c
index 1d7929b..66e518f 100644
--- a/arch/parisc/lib/memset.c
+++ b/arch/parisc/lib/memset.c
@@ -25,13 +25,12 @@
 typedef unsigned long op_t;
 
 void *
-memset (void *dstpp, int sc, size_t len)
+memset(void *dstpp, int sc, size_t len)
 {
   unsigned int c = sc;
   long int dstp = (long int) dstpp;
 
-  if (len >= 8)
-    {
+  if (len >= 8) {
       size_t xlen;
       op_t cccc;
 
@@ -44,17 +43,15 @@ memset (void *dstpp, int sc, size_t len)
 
       /* There are at least some bytes to set.
 	 No need to test for LEN == 0 in this alignment loop.  */
-      while (dstp % OPSIZ != 0)
-	{
-	  ((unsigned char *) dstp)[0] = c;
-	  dstp += 1;
-	  len -= 1;
+	while (dstp % OPSIZ != 0) {
+		((unsigned char *) dstp)[0] = c;
+		dstp += 1;
+		len -= 1;
 	}
 
       /* Write 8 `op_t' per iteration until less than 8 `op_t' remain.  */
       xlen = len / (OPSIZ * 8);
-      while (xlen > 0)
-	{
+      while (xlen > 0) {
 	  ((op_t *) dstp)[0] = cccc;
 	  ((op_t *) dstp)[1] = cccc;
 	  ((op_t *) dstp)[2] = cccc;
@@ -70,8 +67,7 @@ memset (void *dstpp, int sc, size_t len)
 
       /* Write 1 `op_t' per iteration until less than OPSIZ bytes remain.  */
       xlen = len / OPSIZ;
-      while (xlen > 0)
-	{
+      while (xlen > 0) {
 	  ((op_t *) dstp)[0] = cccc;
 	  dstp += OPSIZ;
 	  xlen -= 1;
@@ -80,8 +76,7 @@ memset (void *dstpp, int sc, size_t len)
     }
 
   /* Write the last few bytes.  */
-  while (len > 0)
-    {
+  while (len > 0) {
       ((unsigned char *) dstp)[0] = c;
       dstp += 1;
       len -= 1;
-- 
1.7.1.251.gf80a2

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From - Thu Nov 08 21:05:59 2018
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X-Mozilla-Keys:                                                                                 
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From: Andrea Gelmini <andrea.gelmini@gelma.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 174/199] arch/parisc/lib/io.c: Checkpatch cleanup
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Cc: Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
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arch/parisc/lib/io.c:55: ERROR: trailing whitespace
arch/parisc/lib/io.c:68: ERROR: trailing statements should be on next line
arch/parisc/lib/io.c:117: WARNING: braces {} are not necessary for single statement blocks
arch/parisc/lib/io.c:126: WARNING: space prohibited between function name and open parenthesis '('
arch/parisc/lib/io.c:166: WARNING: space prohibited between function name and open parenthesis '('
arch/parisc/lib/io.c:172: ERROR: trailing whitespace
arch/parisc/lib/io.c:175: ERROR: trailing whitespace
arch/parisc/lib/io.c:176: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:179: ERROR: spaces required around that '>=' (ctx:VxV)
arch/parisc/lib/io.c:180: ERROR: trailing whitespace
arch/parisc/lib/io.c:187: WARNING: braces {} are not necessary for single statement blocks
arch/parisc/lib/io.c:191: ERROR: trailing whitespace
arch/parisc/lib/io.c:196: ERROR: spaces required around that '>=' (ctx:VxV)
arch/parisc/lib/io.c:197: ERROR: trailing whitespace
arch/parisc/lib/io.c:204: WARNING: braces {} are not necessary for single statement blocks
arch/parisc/lib/io.c:208: ERROR: trailing whitespace
arch/parisc/lib/io.c:214: ERROR: trailing whitespace
arch/parisc/lib/io.c:218: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:238: WARNING: space prohibited between function name and open parenthesis '('
arch/parisc/lib/io.c:244: ERROR: trailing whitespace
arch/parisc/lib/io.c:247: ERROR: trailing whitespace
arch/parisc/lib/io.c:248: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:251: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:257: ERROR: trailing whitespace
arch/parisc/lib/io.c:260: ERROR: trailing whitespace
arch/parisc/lib/io.c:264: ERROR: trailing whitespace
arch/parisc/lib/io.c:265: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:276: ERROR: trailing whitespace
arch/parisc/lib/io.c:282: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:293: ERROR: trailing whitespace
arch/parisc/lib/io.c:297: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:318: ERROR: "foo * bar" should be "foo *bar"
arch/parisc/lib/io.c:336: WARNING: space prohibited between function name and open parenthesis '('
arch/parisc/lib/io.c:342: ERROR: trailing whitespace
arch/parisc/lib/io.c:345: ERROR: trailing whitespace
arch/parisc/lib/io.c:346: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:349: ERROR: spaces required around that '>=' (ctx:VxV)
arch/parisc/lib/io.c:356: WARNING: braces {} are not necessary for single statement blocks
arch/parisc/lib/io.c:357: ERROR: "(foo*)" should be "(foo *)"
arch/parisc/lib/io.c:360: ERROR: trailing whitespace
arch/parisc/lib/io.c:362: ERROR: trailing whitespace
arch/parisc/lib/io.c:363: ERROR: "(foo*)" should be "(foo *)"
arch/parisc/lib/io.c:366: ERROR: trailing whitespace
arch/parisc/lib/io.c:367: ERROR: spaces required around that '>=' (ctx:VxV)
arch/parisc/lib/io.c:374: WARNING: braces {} are not necessary for single statement blocks
arch/parisc/lib/io.c:378: ERROR: trailing whitespace
arch/parisc/lib/io.c:379: ERROR: trailing whitespace
arch/parisc/lib/io.c:382: ERROR: trailing whitespace
arch/parisc/lib/io.c:386: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:392: ERROR: code indent should use tabs where possible
arch/parisc/lib/io.c:395: WARNING: space prohibited between function name and open parenthesis '('
arch/parisc/lib/io.c:397: ERROR: trailing whitespace
arch/parisc/lib/io.c:408: WARNING: space prohibited between function name and open parenthesis '('
arch/parisc/lib/io.c:414: ERROR: trailing whitespace
arch/parisc/lib/io.c:417: ERROR: trailing whitespace
arch/parisc/lib/io.c:418: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:421: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:427: ERROR: trailing whitespace
arch/parisc/lib/io.c:430: ERROR: trailing whitespace
arch/parisc/lib/io.c:433: ERROR: trailing whitespace
arch/parisc/lib/io.c:434: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:438: WARNING: space prohibited between function name and open parenthesis '('
arch/parisc/lib/io.c:442: WARNING: space prohibited between function name and open parenthesis '('
arch/parisc/lib/io.c:452: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:456: WARNING: space prohibited between function name and open parenthesis '('
arch/parisc/lib/io.c:460: WARNING: space prohibited between function name and open parenthesis '('
arch/parisc/lib/io.c:464: ERROR: trailing whitespace
arch/parisc/lib/io.c:468: ERROR: that open brace { should be on the previous line
arch/parisc/lib/io.c:472: WARNING: space prohibited between function name and open parenthesis '('
arch/parisc/lib/io.c:478: WARNING: space prohibited between function name and open parenthesis '('

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/lib/io.c |  155 ++++++++++++++++++++++----------------------------
 1 files changed, 68 insertions(+), 87 deletions(-)

diff --git a/arch/parisc/lib/io.c b/arch/parisc/lib/io.c
index 7c1406f..c6c9ddb 100644
--- a/arch/parisc/lib/io.c
+++ b/arch/parisc/lib/io.c
@@ -52,7 +52,7 @@ void memcpy_toio(volatile void __iomem *dst, const void *src, int count)
 */
 void memcpy_fromio(void *dst, const volatile void __iomem *src, int count)
 {
-	/* first compare alignment of src/dst */ 
+	/* first compare alignment of src/dst */
 	if ( (((unsigned long)dst ^ (unsigned long)src) & 1) || (count < 2) )
 		goto bytecopy;
 
@@ -114,16 +114,15 @@ void memset_io(volatile void __iomem *addr, unsigned char val, int count)
 		addr += 4;
 		count -= 4;
 	}
-	while (count--) {
+	while (count--)
 		writeb(val, addr++);
-	}
 }
 
 /*
  * Read COUNT 8-bit bytes from port PORT into memory starting at
  * SRC.
  */
-void insb (unsigned long port, void *dst, unsigned long count)
+void insb(unsigned long port, void *dst, unsigned long count)
 {
 	unsigned char *p;
 
@@ -163,60 +162,56 @@ void insb (unsigned long port, void *dst, unsigned long count)
  * the interfaces seems to be slow: just using the inlined version
  * of the inw() breaks things.
  */
-void insw (unsigned long port, void *dst, unsigned long count)
+void insw(unsigned long port, void *dst, unsigned long count)
 {
 	unsigned int l = 0, l2;
 	unsigned char *p;
 
 	p = (unsigned char *)dst;
-	
+
 	if (!count)
 		return;
-	
-	switch (((unsigned long)p) & 0x3)
-	{
+
+	switch (((unsigned long)p) & 0x3) {
 	 case 0x00:			/* Buffer 32-bit aligned */
-		while (count>=2) {
-			
+		while (count >= 2) {
+
 			count -= 2;
 			l = cpu_to_le16(inw(port)) << 16;
 			l |= cpu_to_le16(inw(port));
 			*(unsigned int *)p = l;
 			p += 4;
 		}
-		if (count) {
+		if (count)
 			*(unsigned short *)p = cpu_to_le16(inw(port));
-		}
 		break;
-	
+
 	 case 0x02:			/* Buffer 16-bit aligned */
 		*(unsigned short *)p = cpu_to_le16(inw(port));
 		p += 2;
 		count--;
 		while (count>=2) {
-			
+
 			count -= 2;
 			l = cpu_to_le16(inw(port)) << 16;
 			l |= cpu_to_le16(inw(port));
 			*(unsigned int *)p = l;
 			p += 4;
 		}
-		if (count) {
+		if (count)
 			*(unsigned short *)p = cpu_to_le16(inw(port));
-		}
 		break;
-		
+
 	 case 0x01:			/* Buffer 8-bit aligned */
 	 case 0x03:
 		/* I don't bother with 32bit transfers
 		 * in this case, 16bit will have to do -- DE */
 		--count;
-		
+
 		l = cpu_to_le16(inw(port));
 		*p = l >> 8;
 		p++;
-		while (count--)
-		{
+		while (count--) {
 			l2 = cpu_to_le16(inw(port));
 			*(unsigned short *)p = (l & 0xff) << 8 | (l2 >> 8);
 			p += 2;
@@ -235,35 +230,32 @@ void insw (unsigned long port, void *dst, unsigned long count)
  * but the interfaces seems to be slow: just using the inlined version
  * of the inl() breaks things.
  */
-void insl (unsigned long port, void *dst, unsigned long count)
+void insl(unsigned long port, void *dst, unsigned long count)
 {
 	unsigned int l = 0, l2;
 	unsigned char *p;
 
 	p = (unsigned char *)dst;
-	
+
 	if (!count)
 		return;
-	
-	switch (((unsigned long) dst) & 0x3)
-	{
+
+	switch (((unsigned long) dst) & 0x3) {
 	 case 0x00:			/* Buffer 32-bit aligned */
-		while (count--)
-		{
+		while (count--) {
 			*(unsigned int *)p = cpu_to_le32(inl(port));
 			p += 4;
 		}
 		break;
-	
+
 	 case 0x02:			/* Buffer 16-bit aligned */
 		--count;
-		
+
 		l = cpu_to_le32(inl(port));
 		*(unsigned short *)p = l >> 16;
 		p += 2;
-		
-		while (count--)
-		{
+
+		while (count--) {
 			l2 = cpu_to_le32(inl(port));
 			*(unsigned int *)p = (l & 0xffff) << 16 | (l2 >> 16);
 			p += 4;
@@ -273,14 +265,13 @@ void insl (unsigned long port, void *dst, unsigned long count)
 		break;
 	 case 0x01:			/* Buffer 8-bit aligned */
 		--count;
-		
+
 		l = cpu_to_le32(inl(port));
 		*(unsigned char *)p = l >> 24;
 		p++;
 		*(unsigned short *)p = (l >> 8) & 0xffff;
 		p += 2;
-		while (count--)
-		{
+		while (count--) {
 			l2 = cpu_to_le32(inl(port));
 			*(unsigned int *)p = (l & 0xff) << 24 | (l2 >> 8);
 			p += 4;
@@ -290,12 +281,11 @@ void insl (unsigned long port, void *dst, unsigned long count)
 		break;
 	 case 0x03:			/* Buffer 8-bit aligned */
 		--count;
-		
+
 		l = cpu_to_le32(inl(port));
 		*p = l >> 24;
 		p++;
-		while (count--)
-		{
+		while (count--) {
 			l2 = cpu_to_le32(inl(port));
 			*(unsigned int *)p = (l & 0xffffff) << 8 | l2 >> 24;
 			p += 4;
@@ -315,7 +305,7 @@ void insl (unsigned long port, void *dst, unsigned long count)
  * doing byte reads the "slow" way isn't nearly as slow as
  * doing byte writes the slow way (no r-m-w cycle).
  */
-void outsb(unsigned long port, const void * src, unsigned long count)
+void outsb(unsigned long port, const void *src, unsigned long count)
 {
 	const unsigned char *p;
 
@@ -333,68 +323,64 @@ void outsb(unsigned long port, const void * src, unsigned long count)
  * interfaces seems to be slow: just using the inlined version of the
  * outw() breaks things.
  */
-void outsw (unsigned long port, const void *src, unsigned long count)
+void outsw(unsigned long port, const void *src, unsigned long count)
 {
 	unsigned int l = 0, l2;
 	const unsigned char *p;
 
 	p = (const unsigned char *)src;
-	
+
 	if (!count)
 		return;
-	
-	switch (((unsigned long)p) & 0x3)
-	{
+
+	switch (((unsigned long)p) & 0x3) {
 	 case 0x00:			/* Buffer 32-bit aligned */
-		while (count>=2) {
+		while (count >= 2) {
 			count -= 2;
 			l = *(unsigned int *)p;
 			p += 4;
 			outw(le16_to_cpu(l >> 16), port);
 			outw(le16_to_cpu(l & 0xffff), port);
 		}
-		if (count) {
-			outw(le16_to_cpu(*(unsigned short*)p), port);
-		}
+		if (count)
+			outw(le16_to_cpu(*(unsigned short *)p), port);
 		break;
-	
+
 	 case 0x02:			/* Buffer 16-bit aligned */
-		
-		outw(le16_to_cpu(*(unsigned short*)p), port);
+
+		outw(le16_to_cpu(*(unsigned short *)p), port);
 		p += 2;
 		count--;
-		
-		while (count>=2) {
+
+		while (count >= 2) {
 			count -= 2;
 			l = *(unsigned int *)p;
 			p += 4;
 			outw(le16_to_cpu(l >> 16), port);
 			outw(le16_to_cpu(l & 0xffff), port);
 		}
-		if (count) {
+		if (count)
 			outw(le16_to_cpu(*(unsigned short *)p), port);
-		}
 		break;
-		
-	 case 0x01:			/* Buffer 8-bit aligned */	
+
+	 case 0x01:			/* Buffer 8-bit aligned */
 		/* I don't bother with 32bit transfers
 		 * in this case, 16bit will have to do -- DE */
-		
+
 		l  = *p << 8;
 		p++;
 		count--;
-		while (count)
-		{
+		while (count) {
 			count--;
 			l2 = *(unsigned short *)p;
 			p += 2;
 			outw(le16_to_cpu(l | l2 >> 8), port);
-		        l = l2 << 8;
+			l = l2 << 8;
 		}
 		l2 = *(unsigned char *)p;
-		outw (le16_to_cpu(l | l2>>8), port);
+		outw(le16_to_cpu(l | l2>>8), port);
 		break;
-	
+
 	}
 }
 
@@ -405,41 +391,38 @@ void outsw (unsigned long port, const void *src, unsigned long count)
  *  Performance is important, but the interfaces seems to be slow:
  * just using the inlined version of the outl() breaks things.
  */
-void outsl (unsigned long port, const void *src, unsigned long count)
+void outsl(unsigned long port, const void *src, unsigned long count)
 {
 	unsigned int l = 0, l2;
 	const unsigned char *p;
 
 	p = (const unsigned char *)src;
-	
+
 	if (!count)
 		return;
-	
-	switch (((unsigned long)p) & 0x3)
-	{
+
+	switch (((unsigned long)p) & 0x3) {
 	 case 0x00:			/* Buffer 32-bit aligned */
-		while (count--)
-		{
+		while (count--) {
 			outl(le32_to_cpu(*(unsigned int *)p), port);
 			p += 4;
 		}
 		break;
-	
+
 	 case 0x02:			/* Buffer 16-bit aligned */
 		--count;
-		
+
 		l = *(unsigned short *)p;
 		p += 2;
-		
-		while (count--)
-		{
+
+		while (count--) {
 			l2 = *(unsigned int *)p;
 			p += 4;
-			outl (le32_to_cpu(l << 16 | l2 >> 16), port);
+			outl(le32_to_cpu(l << 16 | l2 >> 16), port);
 			l = l2;
 		}
 		l2 = *(unsigned short *)p;
-		outl (le32_to_cpu(l << 16 | l2), port);
+		outl(le32_to_cpu(l << 16 | l2), port);
 		break;
 	 case 0x01:			/* Buffer 8-bit aligned */
 		--count;
@@ -449,33 +432,31 @@ void outsl (unsigned long port, const void *src, unsigned long count)
 		l |= *(unsigned short *)p << 8;
 		p += 2;
 
-		while (count--)
-		{
+		while (count--) {
 			l2 = *(unsigned int *)p;
 			p += 4;
-			outl (le32_to_cpu(l | l2 >> 24), port);
+			outl(le32_to_cpu(l | l2 >> 24), port);
 			l = l2 << 8;
 		}
 		l2 = *p;
-		outl (le32_to_cpu(l | l2), port);
+		outl(le32_to_cpu(l | l2), port);
 		break;
 	 case 0x03:			/* Buffer 8-bit aligned */
 		--count;
-		
+
 		l = *p << 24;
 		p++;
 
-		while (count--)
-		{
+		while (count--) {
 			l2 = *(unsigned int *)p;
 			p += 4;
-			outl (le32_to_cpu(l | l2 >> 8), port);
+			outl(le32_to_cpu(l | l2 >> 8), port);
 			l = l2 << 24;
 		}
 		l2 = *(unsigned short *)p << 16;
 		p += 2;
 		l2 |= *p;
-		outl (le32_to_cpu(l | l2), port);
+		outl(le32_to_cpu(l | l2), port);
 		break;
 	}
 }
-- 
1.7.1.251.gf80a2

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From - Thu Nov 08 21:05:59 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Andrea Gelmini <andrea.gelmini@gelma.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 176/199] arch/parisc/math-emu/driver.c: Checkpatch cleanup
Date: Sun, 23 May 2010 22:02:03 +0200
Lines: 29
Approved: news@gmane.org
Message-ID: <1274644930-26600-19-git-send-email-andrea.gelmini@gelma.net>
References: <1274644930-26600-1-git-send-email-andrea.gelmini@gelma.net>
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NNTP-Posting-Date: Sun, 23 May 2010 20:02:54 +0000 (UTC)
Cc: Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	linux-parisc@vger.kernel.org
To: andrea.gelmini@gelma.net
Original-X-From: linux-parisc-owner@vger.kernel.org Sun May 23 22:02:52 2010
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arch/parisc/math-emu/driver.c:90: ERROR: trailing whitespace
arch/parisc/math-emu/driver.c:118: WARNING: suspect code indent for conditional statements (8, 12)

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/math-emu/driver.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/math-emu/driver.c b/arch/parisc/math-emu/driver.c
index 09ef413..273006e 100644
--- a/arch/parisc/math-emu/driver.c
+++ b/arch/parisc/math-emu/driver.c
@@ -87,7 +87,7 @@ handle_fpe(struct pt_regs *regs)
 	 * code expects an artificial last entry which contains zero
 	 *
 	 * also, the passed in fr registers contain one word that defines
-	 * the fpu type. the fpu type information is constructed 
+	 * the fpu type. the fpu type information is constructed
 	 * inside the emulation code
 	 */
 	__u64 frcopy[36];
-- 
1.7.1.251.gf80a2

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From: Andrea Gelmini <andrea.gelmini@gelma.net>
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Subject: [PATCH 177/199] arch/parisc/math-emu/fpbits.h: Checkpatch cleanup
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arch/parisc/math-emu/fpbits.h:51: ERROR: trailing whitespace

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/math-emu/fpbits.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/math-emu/fpbits.h b/arch/parisc/math-emu/fpbits.h
index cefad06..431b571 100644
--- a/arch/parisc/math-emu/fpbits.h
+++ b/arch/parisc/math-emu/fpbits.h
@@ -48,7 +48,7 @@
  * function "DeclBitfR" except its use is restricted to occur within a larger
  * enclosing structure or union definition.  This declaration is an unnamed
  * structure with the argument, name, as the member name and the argument,
- * uname, as the element name. 
+ * uname, as the element name.
  *----------------------------------------------------------------------- */
 #define Bitfield_extract(start, length, object) 	\
     ((object) >> (HOSTWDSZ - (start) - (length)) & 	\
-- 
1.7.1.251.gf80a2

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From - Thu Nov 08 21:05:59 2018
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From - Thu Nov 08 21:05:59 2018
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From: Kyle McMartin <kyle@hera.kernel.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [git patches] bugfixes for parisc for 2.6.35
Date: Sun, 30 May 2010 09:59:19 +0000
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Hi Linus, just bug fixes this release, doesn't touch anything outside of
arch/parisc.
 --Kyle

The following changes since commit e40152ee1e1c7a63f4777791863215e3faa37a86:

  Linus 2.6.34 (2010-05-16 14:17:36 -0700)

are available in the git repository at:
  hera.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git fixes

Carlos O'Donell (1):
      parisc: Use of align_frame provides stack frame.

Helge Deller (1):
      parisc: clear floating point exception flag on SIGFPE signal

John David Anglin (5):
      parisc: Avoid interruption in critical region in entry.S
      parisc: Delete unnecessary nop's in entry.S
      parisc: LWS fixes for syscall.S
      parisc: Remove unnecessary macros from entry.S
      parisc: Call pagefault_disable/pagefault_enable in kmap_atomic/kunmap_atomic

Nick Piggin (1):
      parisc: invoke oom-killer from page fault

 arch/parisc/include/asm/cacheflush.h |   16 ++++++++--
 arch/parisc/kernel/asm-offsets.c     |   15 +++++++--
 arch/parisc/kernel/entry.S           |   52 ++++++---------------------------
 arch/parisc/kernel/syscall.S         |   32 ++++++---------------
 arch/parisc/math-emu/decode_exc.c    |    1 +
 arch/parisc/mm/fault.c               |    7 ++--
 6 files changed, 47 insertions(+), 76 deletions(-)
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From - Thu Nov 08 21:05:59 2018
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X-Mozilla-Keys:                                                                                 
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From: Joe Perches <joe@perches.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 14/21] drivers/parisc/iosapic.c: Remove unnecessary kzalloc cast
Date: Mon, 31 May 2010 20:23:16 -0700
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Convert kzalloc to kcalloc

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/parisc/iosapic.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index c768367..3e6f56c 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -891,8 +891,8 @@ void *iosapic_register(unsigned long hpa)
 	isi->isi_version = iosapic_rd_version(isi);
 	isi->isi_num_vectors = IOSAPIC_IRDT_MAX_ENTRY(isi->isi_version) + 1;
 
-	vip = isi->isi_vector = (struct vector_info *)
-		kzalloc(sizeof(struct vector_info) * isi->isi_num_vectors, GFP_KERNEL);
+	vip = isi->isi_vector = kcalloc(isi->isi_num_vectors,
+					sizeof(struct vector_info), GFP_KERNEL);
 	if (vip == NULL) {
 		kfree(isi);
 		return NULL;
-- 
1.7.0.3.311.g6a6955


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Subject: Re: [PATCH 14/21] drivers/parisc/iosapic.c: Remove unnecessary
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On Mon, May 31, 2010 at 08:23:16PM -0700, Joe Perches wrote:
> Convert kzalloc to kcalloc
> 
> Signed-off-by: Joe Perches <joe@perches.com>

Reviewed-by: Grant Grundler <grundler@parisc-linux.org>

thanks,
grant

> ---
>  drivers/parisc/iosapic.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
> index c768367..3e6f56c 100644
> --- a/drivers/parisc/iosapic.c
> +++ b/drivers/parisc/iosapic.c
> @@ -891,8 +891,8 @@ void *iosapic_register(unsigned long hpa)
>  	isi->isi_version = iosapic_rd_version(isi);
>  	isi->isi_num_vectors = IOSAPIC_IRDT_MAX_ENTRY(isi->isi_version) + 1;
>  
> -	vip = isi->isi_vector = (struct vector_info *)
> -		kzalloc(sizeof(struct vector_info) * isi->isi_num_vectors, GFP_KERNEL);
> +	vip = isi->isi_vector = kcalloc(isi->isi_num_vectors,
> +					sizeof(struct vector_info), GFP_KERNEL);
>  	if (vip == NULL) {
>  		kfree(isi);
>  		return NULL;
> -- 
> 1.7.0.3.311.g6a6955
> 
> --
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From: Modestas Vainius <modestas@vainius.eu>
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Subject: Bug#561203: threads and fork on machine with VIPT-WB cache
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Hello,

this bug [1] is back to the "very common" department with eglibc 2.11 (libc=
6-
dev_2.11.1-1) builds. Majority of KDE applications are failing to build on=
=20
hppa again. Is there really nothing what could be done to fix it?

1. http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D561203
2.=20
https://buildd.debian.org/fetch.cgi?pkg=3Dkde4libs;ver=3D4%3A4.4.4-1;arch=
=3Dhppa;stamp=3D1275467025
3.=20
https://buildd.debian.org/fetch.cgi?pkg=3Dbasket;ver=3D1.80-1;arch=3Dhppa;s=
tamp=3D1275483241

=2D-=20
Modestas Vainius <modestas@vainius.eu>

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From - Thu Nov 08 21:06:00 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: threads and fork on machine with VIPT-WB cache
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On Wed, 02 Jun 2010, Modestas Vainius wrote:

> Hello,
> 
> this bug [1] is back to the "very common" department with eglibc 2.11 (libc6-
> dev_2.11.1-1) builds. Majority of KDE applications are failing to build on 
> hppa again. Is there really nothing what could be done to fix it?

I will just say it is very tricky.  I think a fix is possible (arm and mips
had similar cache problems) but the victim replacement present in PA8800/PA8900
caches makes the problem especially difficult  for hardware using these
processors.

I have spent the last few months testing various alternatives and have
now done hundreds of kernel builds.  I did post some experimental patches
that fix the problem on UP kernels.  However, the problem is not resolved
for SMP kernels.

The minifail test is a good one to demonstrate the problem.  Indeed,
a very similar test was given in the thread below:
http://readlist.com/lists/vger.kernel.org/linux-kernel/54/270861.html

This thread also discusses the PA8800 problem:
http://readlist.com/lists/vger.kernel.org/linux-kernel/54/271417.html

I currently surmise that we have a problem with the cache victim
replacement, although the cause isn't clear.  I did find recently
that the cache prefetch in copy_user_page_asm extends to the line
beyond the end of the page, but fixing this doesn't resolve the problem.

I am still experimenting with using equivalent aliasing.  It does
help to flush in ptep_set_wrprotect.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: dann frazier <dannf@debian.org>
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Subject: Re: Bug#561203: threads and fork on machine with VIPT-WB cache
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On Wed, Jun 02, 2010 at 01:16:01PM -0400, John David Anglin wrote:
> On Wed, 02 Jun 2010, Modestas Vainius wrote:
> 
> > Hello,
> > 
> > this bug [1] is back to the "very common" department with eglibc 2.11 (libc6-
> > dev_2.11.1-1) builds. Majority of KDE applications are failing to build on 
> > hppa again. Is there really nothing what could be done to fix it?
> 
> I will just say it is very tricky.  I think a fix is possible (arm and mips
> had similar cache problems) but the victim replacement present in PA8800/PA8900
> caches makes the problem especially difficult  for hardware using these
> processors.
> 
> I have spent the last few months testing various alternatives and have
> now done hundreds of kernel builds.  I did post some experimental patches
> that fix the problem on UP kernels.  However, the problem is not resolved
> for SMP kernels.

Note that Debian's buildds run a UP kernel, so as soon as those fixes
go upstream we can pull them in. Thanks for all your work here!

> The minifail test is a good one to demonstrate the problem.  Indeed,
> a very similar test was given in the thread below:
> http://readlist.com/lists/vger.kernel.org/linux-kernel/54/270861.html
> 
> This thread also discusses the PA8800 problem:
> http://readlist.com/lists/vger.kernel.org/linux-kernel/54/271417.html
> 
> I currently surmise that we have a problem with the cache victim
> replacement, although the cause isn't clear.  I did find recently
> that the cache prefetch in copy_user_page_asm extends to the line
> beyond the end of the page, but fixing this doesn't resolve the problem.
> 
> I am still experimenting with using equivalent aliasing.  It does
> help to flush in ptep_set_wrprotect.
> 
> Dave

-- 
dann frazier

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From: Modestas Vainius <modestas@vainius.eu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Bug#561203: threads and fork on machine with VIPT-WB cache
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# Breaks unrelated applications
tags 561203 critical
thanks

Hello,

On tre=C4=8Diadienis 02 Bir=C5=BEelis 2010 20:56:17 dann frazier wrote:
> On Wed, Jun 02, 2010 at 01:16:01PM -0400, John David Anglin wrote:
> > On Wed, 02 Jun 2010, Modestas Vainius wrote:
> > > Hello,
> > >=20
> > > this bug [1] is back to the "very common" department with eglibc 2.11
> > > (libc6- dev_2.11.1-1) builds. Majority of KDE applications are failing
> > > to build on hppa again. Is there really nothing what could be done to
> > > fix it?
> >=20
> > I will just say it is very tricky.  I think a fix is possible (arm and
> > mips had similar cache problems) but the victim replacement present in
> > PA8800/PA8900 caches makes the problem especially difficult  for
> > hardware using these processors.
> >=20
> > I have spent the last few months testing various alternatives and have
> > now done hundreds of kernel builds.  I did post some experimental patch=
es
> > that fix the problem on UP kernels.  However, the problem is not resolv=
ed
> > for SMP kernels.
>=20
> Note that Debian's buildds run a UP kernel, so as soon as those fixes
> go upstream we can pull them in. Thanks for all your work here!
>=20

Well, as long as this is unfixed or at least "common", I don't see how hppa=
=20
can be considered to be a release arch. Is that UP patch available somewher=
e?

All KDE applications have been stuck in unstable before due to this and=20
history is about to repeat itself unless something is done. While apparentl=
y a=20
failing test in eglibc can be ignored, other applications have to suffer re=
al=20
world problems...

=2D-=20
Modestas Vainius <modestas@vainius.eu>

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From: NIIBE Yutaka <gniibe@fsij.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Bug#561203: threads and fork on machine with VIPT-WB cache
Date: Fri, 04 Jun 2010 10:03:07 +0900
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Cc: dann frazier <dannf@debian.org>,
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Modestas Vainius wrote:
>> Note that Debian's buildds run a UP kernel, so as soon as those fixes
>> go upstream we can pull them in. Thanks for all your work here!
>>
>
> Well, as long as this is unfixed or at least "common", I don't see how hppa
> can be considered to be a release arch. Is that UP patch available somewhere?

My case and my analysis talked about UP kernel, and John David Anglin
made a patch:
	http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=561203#144

After that, the discussion went to SMP cases.

It would be better to evaluate the patch again, and make sure it works
for UP case and fix failures of buildd, then apply for Linux in Debian
(only) for HPPA.

I know that the patch is not that ideal because it touches
architecture independent part of Linux, but it is worth for Linux in
Debian (or Linux for the HPPA machine of buildd, at least).
-- 
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From - Thu Nov 08 21:06:00 2018
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From: dann frazier <dannf@debian.org>
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Subject: Re: Bug#561203: threads and fork on machine with VIPT-WB cache
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Cc: Modestas Vainius <modestas@vainius.eu>,
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	deller@gmx.de, linux-parisc@vger.kernel.org,
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To: NIIBE Yutaka <gniibe@fsij.org>, 561203@bugs.debian.org
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On Fri, Jun 04, 2010 at 10:03:07AM +0900, NIIBE Yutaka wrote:
> Modestas Vainius wrote:
>>> Note that Debian's buildds run a UP kernel, so as soon as those fixes
>>> go upstream we can pull them in. Thanks for all your work here!
>>>
>>
>> Well, as long as this is unfixed or at least "common", I don't see how hppa
>> can be considered to be a release arch. Is that UP patch available somewhere?
>
> My case and my analysis talked about UP kernel, and John David Anglin
> made a patch:
> 	http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=561203#144
>
> After that, the discussion went to SMP cases.
>
> It would be better to evaluate the patch again, and make sure it works
> for UP case and fix failures of buildd, then apply for Linux in Debian
> (only) for HPPA.
>
> I know that the patch is not that ideal because it touches
> architecture independent part of Linux, but it is worth for Linux in
> Debian (or Linux for the HPPA machine of buildd, at least).

I'm happy to test the patch if necessary to help push this change
upstream. However, we do need the change to go upstream before we can
include it in the Debian kernel.
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From - Thu Nov 08 21:06:00 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: 2.6.35-rc1 and RCU
Date: Fri, 4 Jun 2010 05:44:05 -0400
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Did anyone else see a hang on 2.6.35-rc1 just after RCU initializes?
If not, I'll debug it this weekend or when I get back to Canada...
2.6.34+the merged series booted (and continues) to boot fine, so I
suspect it's not something we did.

--Kyle
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On Fri, Jun 4, 2010 at 7:21 AM, dann frazier <dannf@debian.org> wrote:
> On Fri, Jun 04, 2010 at 10:03:07AM +0900, NIIBE Yutaka wrote:
>> Modestas Vainius wrote:
>>>> Note that Debian's buildds run a UP kernel, so as soon as those fi=
xes
>>>> go upstream we can pull them in. Thanks for all your work here!
>>>>
>>>
>>> Well, as long as this is unfixed or at least "common", I don't see =
how hppa
>>> can be considered to be a release arch. Is that UP patch available =
somewhere?
>>
>> My case and my analysis talked about UP kernel, and John David Angli=
n
>> made a patch:
>> =C2=A0 =C2=A0 =C2=A0 http://bugs.debian.org/cgi-bin/bugreport.cgi?bu=
g=3D561203#144
>>
>> After that, the discussion went to SMP cases.
>>
>> It would be better to evaluate the patch again, and make sure it wor=
ks
>> for UP case and fix failures of buildd, then apply for Linux in Debi=
an
>> (only) for HPPA.
>>
>> I know that the patch is not that ideal because it touches
>> architecture independent part of Linux, but it is worth for Linux in
>> Debian (or Linux for the HPPA machine of buildd, at least).
>
> I'm happy to test the patch if necessary to help push this change
> upstream. However, we do need the change to go upstream before we can
> include it in the Debian kernel.

Just for reference, I've summarized the test cases and related patches =
here:
http://wiki.parisc-linux.org/TestCases

HTH

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:06:00 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: patch submission
Date: Fri, 4 Jun 2010 07:28:26 -0400
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Hi folks,

Manually munging changelogs is really tedious work and makes for an
unhappy Kyle. In the future, if you want to save me a lot of hair
pulling, and to make patchwork better for all of us, could we please do
a few kind things for me?

1. Patches that you want applied should start a new thread: It's really
difficult to see what the status of things is when several patches are
all jumbled up with a load of prior discussion.

2. Patches should be properly formatted for git-am: Patchwork
automatically adds Signed-off-by and certain other attributions if you
follow up to the list, which saves me having to note them and add them
myself. For reference, a patch should look like the following.

<MAIL_HEADERS>
From: Submitter
Subject: [PATCH] parisc: useful subject
Date: Self Explanatory
</MAIL_HEADERS>

<MAIL_BODY>
From: Patch Author if not Submitter

Patch description in here.

Signed-off-by: Patch Author
Acked-by: Someone else
Reviewed-by: Yet Another person

--- <- seperator between changelog and patch

Anything between seperator and the diff itself will not be in the patch
changelog, this is where you should put notes and such, please, as well
as a diffstat if it is a large patch series.

Diff goes here.
</MAIL_BODY>

I promise to be a lot quicker at sucking patches in and getting them
around if we can tighten up our process a bit.

Thanks, Kyle
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From - Thu Nov 08 21:06:00 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: hardware
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I've got a load of hardware I don't really anticipate energizing again
that anyone who is doing work on Linux is welcome to... I'll make a
list, but I have random bits of everything parisc related (PCI
storage/network/misc, memory, disks, arrays, etc.)

I'm willing to itemize it and offer to ship it for the cost of postage,
so if any of you want some of it (or machines) make a list of what you
need and I'll sift through boxes and let you know what I've got.

(Mostly J6XXX class machine bits and A500 bits probably a couple earlier
models as well.)

--Kyle
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From - Thu Nov 08 21:06:01 2018
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From: Helge Deller <deller@gmx.de>
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On 06/04/2010 11:44 AM, Kyle McMartin wrote:
> Did anyone else see a hang on 2.6.35-rc1 just after RCU initializes?

Yes, I did see this as well.

Helge

> If not, I'll debug it this weekend or when I get back to Canada...
> 2.6.34+the merged series booted (and continues) to boot fine, so I
> suspect it's not something we did.
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On Fri, Jun 4, 2010 at 7:28 AM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> I promise to be a lot quicker at sucking patches in and getting them
> around if we can tighten up our process a bit.

Thanks for writing this up!

Cheers,
Carlos.
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On Fri, Jun 4, 2010 at 2:57 PM, Carlos O'Donell <carlos@systemhalted.org> wrote:
> On Fri, Jun 4, 2010 at 7:28 AM, Kyle McMartin <kyle@mcmartin.ca> wrote:
>> I promise to be a lot quicker at sucking patches in and getting them
>> around if we can tighten up our process a bit.
>
> Thanks for writing this up!

I'd be tempted to think that this would be nice wiki material, but I'm
under the impression that nobody would care anyway... ;^P

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On Fri, Jun 04, 2010 at 04:35:58PM +0200, Thibaut VARENE wrote:
> On Fri, Jun 4, 2010 at 2:57 PM, Carlos O'Donell <carlos@systemhalted.org> wrote:
> > On Fri, Jun 4, 2010 at 7:28 AM, Kyle McMartin <kyle@mcmartin.ca> wrote:
> >> I promise to be a lot quicker at sucking patches in and getting them
> >> around if we can tighten up our process a bit.
> >
> > Thanks for writing this up!
> 
> I'd be tempted to think that this would be nice wiki material, but I'm
> under the impression that nobody would care anyway... ;^P

Kyle's summary was much easier reading than what's already in
Documentation/SubmittingPatches. So pasting that into a wiki
page would be good.

thanks,
grant

> 
> -- 
> Thibaut VARENE
> http://www.parisc-linux.org/~varenet/
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On Fri, Jun 04, 2010 at 01:39:42PM +0200, Helge Deller wrote:
> On 06/04/2010 11:44 AM, Kyle McMartin wrote:
> > Did anyone else see a hang on 2.6.35-rc1 just after RCU initializes?
> 
> Yes, I did see this as well.
> 

Cool, next time I reboot I'll see if initcall_debug helps.
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Hi team,

While trying to build gcc-4.5, `gengenrtl -h` segfaults.
As you know, gengenrtl is built using the new gcc during stage 2.

I've been doing several tests and using BOOT_FLAGS="-O2
-fno-delayed-branch" allows gcc to build correctly.

I'll try to provide a testcase but I'm usually unsuccessful while
trying to do so.

Is there any known issue with -fdelayed-branch ?

I know about PR38740 but the fix should be included in 4.5 by now.

Any other useful debug I can provide ?

Thanks,
  Guy
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Subject: Re: gcc-4.5 -fdelayed-branch strikes back
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> While trying to build gcc-4.5, `gengenrtl -h` segfaults.
> As you know, gengenrtl is built using the new gcc during stage 2.
> 
> I've been doing several tests and using BOOT_FLAGS="-O2
> -fno-delayed-branch" allows gcc to build correctly.

Could you post your exact configure and bootstrap commands, and
the bootstrap compiler used?

I have been building 4.5 without problems.  There is an issue with asms
that is unresolved that would affect kernel builds.  It may be your
bootstrap compiler is broken.  Because of this, I wouldn't recommend
4.5 for kernel builds.  The annoying thing abour this bug is it doesn't
appear with checking enabled and didn't appear until 4.5 was released.
It's possible this is a delayed branch issue.

> I'll try to provide a testcase but I'm usually unsuccessful while
> trying to do so.
> 
> Is there any known issue with -fdelayed-branch ?

No.

> I know about PR38740 but the fix should be included in 4.5 by now.

The fixes for this PR are in 4.3 and later.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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--MP_/gB_c5.Lwoxc/98Zr7iuyfXM
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Hi Dave,

I've stripped down gengenrtl.c to the maximum and I'm able to reproduce
the issue with the attached file.

I've observed the following :
gcc -O2  -> Segv
gcc -O2 -fno-delayed-branch -> OK
gcc -O1 -> OK
gcc -O1 -freorder-blocks -> Segv
gcc -O1 -freorder-blocks -fno-delayed-branch -> OK
gcc -O0 -freorder-blocks -fdelayed-branch -> OK

For reference, the build break when compiled the following way :
make -j2 LDFLAGS="-Wl,-O1" STAGE1_CFLAGS="-O"
LIBPATH=/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.5.0 BOOT_CFLAGS="-O2
-pipe -march=2.0" bootstrap-lean 

HTH,
  Guy


On Fri, 4 Jun 2010 15:32:28 -0400 (EDT)
"John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:

> > While trying to build gcc-4.5, `gengenrtl -h` segfaults.
> > As you know, gengenrtl is built using the new gcc during stage 2.
> > 
> > I've been doing several tests and using BOOT_FLAGS="-O2
> > -fno-delayed-branch" allows gcc to build correctly.
> 
> Could you post your exact configure and bootstrap commands, and
> the bootstrap compiler used?
> 
> I have been building 4.5 without problems.  There is an issue with
> asms that is unresolved that would affect kernel builds.  It may be
> your bootstrap compiler is broken.  Because of this, I wouldn't
> recommend 4.5 for kernel builds.  The annoying thing abour this bug
> is it doesn't appear with checking enabled and didn't appear until
> 4.5 was released. It's possible this is a delayed branch issue.
> 
> > I'll try to provide a testcase but I'm usually unsuccessful while
> > trying to do so.
> > 
> > Is there any known issue with -fdelayed-branch ?
> 
> No.
> 
> > I know about PR38740 but the fix should be included in 4.5 by now.
> 
> The fixes for this PR are in 4.3 and later.
> 
> Dave


--MP_/gB_c5.Lwoxc/98Zr7iuyfXM
Content-Type: text/x-c++src
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/* Generate code to allocate RTL structures.
   Copyright (C) 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2007
   Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */


#include <string.h>
#include <stdio.h>
#include <libiberty.h>
#define gcc_unreachable() __builtin_unreachable()

struct rtx_definition
{
  const char *const enumname, *const name, *const format;
};

/* rtl.def needs CONST_DOUBLE_FORMAT, but we don't care what
   CONST_DOUBLE_FORMAT is because we're not going to be generating
   anything for CONST_DOUBLE anyway.  */
#define CONST_DOUBLE_FORMAT ""

#define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) { #ENUM, NAME, FORMAT },

 const struct rtx_definition defs[] =
{
DEF_RTL_EXPR(UNKNOWN, "UnKnown", "*", RTX_EXTRA)
DEF_RTL_EXPR(VALUE, "value", "0", RTX_OBJ)
DEF_RTL_EXPR(DEBUG_EXPR, "debug_expr", "0", RTX_OBJ)
DEF_RTL_EXPR(EXPR_LIST, "expr_list", "ee", RTX_EXTRA)
DEF_RTL_EXPR(INSN_LIST, "insn_list", "ue", RTX_EXTRA)
DEF_RTL_EXPR(SEQUENCE, "sequence", "E", RTX_EXTRA)
DEF_RTL_EXPR(ADDRESS, "address", "e", RTX_MATCH)
DEF_RTL_EXPR(DEBUG_INSN, "debug_insn", "iuuBieie", RTX_INSN)
DEF_RTL_EXPR(INSN, "insn", "iuuBieie", RTX_INSN)
DEF_RTL_EXPR(JUMP_INSN, "jump_insn", "iuuBieie0", RTX_INSN)
DEF_RTL_EXPR(CALL_INSN, "call_insn", "iuuBieiee", RTX_INSN)
DEF_RTL_EXPR(BARRIER, "barrier", "iuu00000", RTX_EXTRA)
DEF_RTL_EXPR(CODE_LABEL, "code_label", "iuuB00is", RTX_EXTRA)
DEF_RTL_EXPR(NOTE, "note", "iuuB0ni", RTX_EXTRA)
DEF_RTL_EXPR(COND_EXEC, "cond_exec", "ee", RTX_EXTRA)
DEF_RTL_EXPR(PARALLEL, "parallel", "E", RTX_EXTRA)
DEF_RTL_EXPR(ASM_INPUT, "asm_input", "si", RTX_EXTRA)
DEF_RTL_EXPR(ASM_OPERANDS, "asm_operands", "ssiEEEi", RTX_EXTRA)
DEF_RTL_EXPR(UNSPEC, "unspec", "Ei", RTX_EXTRA)
DEF_RTL_EXPR(UNSPEC_VOLATILE, "unspec_volatile", "Ei", RTX_EXTRA)
DEF_RTL_EXPR(ADDR_VEC, "addr_vec", "E", RTX_EXTRA)
DEF_RTL_EXPR(ADDR_DIFF_VEC, "addr_diff_vec", "eEee0", RTX_EXTRA)
DEF_RTL_EXPR(PREFETCH, "prefetch", "eee", RTX_EXTRA)
DEF_RTL_EXPR(SET, "set", "ee", RTX_EXTRA)
DEF_RTL_EXPR(USE, "use", "e", RTX_EXTRA)
DEF_RTL_EXPR(CLOBBER, "clobber", "e", RTX_EXTRA)
DEF_RTL_EXPR(CALL, "call", "ee", RTX_EXTRA)
DEF_RTL_EXPR(RETURN, "return", "", RTX_EXTRA)
DEF_RTL_EXPR(EH_RETURN, "eh_return", "", RTX_EXTRA)
DEF_RTL_EXPR(TRAP_IF, "trap_if", "ee", RTX_EXTRA)
DEF_RTL_EXPR(CONST_INT, "const_int", "w", RTX_CONST_OBJ)
DEF_RTL_EXPR(CONST_FIXED, "const_fixed", "www", RTX_CONST_OBJ)
DEF_RTL_EXPR(CONST_DOUBLE, "const_double", CONST_DOUBLE_FORMAT, RTX_CONST_OBJ)
DEF_RTL_EXPR(CONST_VECTOR, "const_vector", "E", RTX_CONST_OBJ)
DEF_RTL_EXPR(CONST_STRING, "const_string", "s", RTX_OBJ)
DEF_RTL_EXPR(CONST, "const", "e", RTX_CONST_OBJ)
DEF_RTL_EXPR(PC, "pc", "", RTX_OBJ)
DEF_RTL_EXPR(REG, "reg", "i00", RTX_OBJ)
DEF_RTL_EXPR(SCRATCH, "scratch", "0", RTX_OBJ)
DEF_RTL_EXPR(SUBREG, "subreg", "ei", RTX_EXTRA)
DEF_RTL_EXPR(STRICT_LOW_PART, "strict_low_part", "e", RTX_EXTRA)
DEF_RTL_EXPR(CONCAT, "concat", "ee", RTX_OBJ)
DEF_RTL_EXPR(CONCATN, "concatn", "E", RTX_OBJ)
DEF_RTL_EXPR(MEM, "mem", "e0", RTX_OBJ)
DEF_RTL_EXPR(LABEL_REF, "label_ref", "u", RTX_CONST_OBJ)
DEF_RTL_EXPR(SYMBOL_REF, "symbol_ref", "s00", RTX_CONST_OBJ)
DEF_RTL_EXPR(CC0, "cc0", "", RTX_OBJ)
DEF_RTL_EXPR(IF_THEN_ELSE, "if_then_else", "eee", RTX_TERNARY)
DEF_RTL_EXPR(COMPARE, "compare", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(PLUS, "plus", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(MINUS, "minus", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(NEG, "neg", "e", RTX_UNARY)
DEF_RTL_EXPR(MULT, "mult", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(SS_MULT, "ss_mult", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(US_MULT, "us_mult", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(DIV, "div", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(SS_DIV, "ss_div", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(US_DIV, "us_div", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(MOD, "mod", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(UDIV, "udiv", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(UMOD, "umod", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(AND, "and", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(IOR, "ior", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(XOR, "xor", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(NOT, "not", "e", RTX_UNARY)
DEF_RTL_EXPR(ASHIFT, "ashift", "ee", RTX_BIN_ARITH) /* shift left */
DEF_RTL_EXPR(ROTATE, "rotate", "ee", RTX_BIN_ARITH) /* rotate left */
DEF_RTL_EXPR(ASHIFTRT, "ashiftrt", "ee", RTX_BIN_ARITH) /* arithmetic shift right */
DEF_RTL_EXPR(LSHIFTRT, "lshiftrt", "ee", RTX_BIN_ARITH) /* logical shift right */
DEF_RTL_EXPR(ROTATERT, "rotatert", "ee", RTX_BIN_ARITH) /* rotate right */
DEF_RTL_EXPR(SMIN, "smin", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(SMAX, "smax", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(UMIN, "umin", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(UMAX, "umax", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(PRE_DEC, "pre_dec", "e", RTX_AUTOINC)
DEF_RTL_EXPR(PRE_INC, "pre_inc", "e", RTX_AUTOINC)
DEF_RTL_EXPR(POST_DEC, "post_dec", "e", RTX_AUTOINC)
DEF_RTL_EXPR(POST_INC, "post_inc", "e", RTX_AUTOINC)
DEF_RTL_EXPR(PRE_MODIFY, "pre_modify", "ee", RTX_AUTOINC)
DEF_RTL_EXPR(POST_MODIFY, "post_modify", "ee", RTX_AUTOINC)
DEF_RTL_EXPR(NE, "ne", "ee", RTX_COMM_COMPARE)
DEF_RTL_EXPR(EQ, "eq", "ee", RTX_COMM_COMPARE)
DEF_RTL_EXPR(GE, "ge", "ee", RTX_COMPARE)
DEF_RTL_EXPR(GT, "gt", "ee", RTX_COMPARE)
DEF_RTL_EXPR(LE, "le", "ee", RTX_COMPARE)
DEF_RTL_EXPR(LT, "lt", "ee", RTX_COMPARE)
DEF_RTL_EXPR(GEU, "geu", "ee", RTX_COMPARE)
DEF_RTL_EXPR(GTU, "gtu", "ee", RTX_COMPARE)
DEF_RTL_EXPR(LEU, "leu", "ee", RTX_COMPARE)
DEF_RTL_EXPR(LTU, "ltu", "ee", RTX_COMPARE)
DEF_RTL_EXPR(UNORDERED, "unordered", "ee", RTX_COMM_COMPARE)
DEF_RTL_EXPR(ORDERED, "ordered", "ee", RTX_COMM_COMPARE)
DEF_RTL_EXPR(UNEQ, "uneq", "ee", RTX_COMM_COMPARE)
DEF_RTL_EXPR(UNGE, "unge", "ee", RTX_COMPARE)
DEF_RTL_EXPR(UNGT, "ungt", "ee", RTX_COMPARE)
DEF_RTL_EXPR(UNLE, "unle", "ee", RTX_COMPARE)
DEF_RTL_EXPR(UNLT, "unlt", "ee", RTX_COMPARE)
DEF_RTL_EXPR(LTGT, "ltgt", "ee", RTX_COMM_COMPARE)
DEF_RTL_EXPR(SIGN_EXTEND, "sign_extend", "e", RTX_UNARY)
DEF_RTL_EXPR(ZERO_EXTEND, "zero_extend", "e", RTX_UNARY)
DEF_RTL_EXPR(TRUNCATE, "truncate", "e", RTX_UNARY)
DEF_RTL_EXPR(FLOAT_EXTEND, "float_extend", "e", RTX_UNARY)
DEF_RTL_EXPR(FLOAT_TRUNCATE, "float_truncate", "e", RTX_UNARY)
DEF_RTL_EXPR(FLOAT, "float", "e", RTX_UNARY)
DEF_RTL_EXPR(FIX, "fix", "e", RTX_UNARY)
DEF_RTL_EXPR(UNSIGNED_FLOAT, "unsigned_float", "e", RTX_UNARY)
DEF_RTL_EXPR(UNSIGNED_FIX, "unsigned_fix", "e", RTX_UNARY)
DEF_RTL_EXPR(FRACT_CONVERT, "fract_convert", "e", RTX_UNARY)
DEF_RTL_EXPR(UNSIGNED_FRACT_CONVERT, "unsigned_fract_convert", "e", RTX_UNARY)
DEF_RTL_EXPR(SAT_FRACT, "sat_fract", "e", RTX_UNARY)
DEF_RTL_EXPR(UNSIGNED_SAT_FRACT, "unsigned_sat_fract", "e", RTX_UNARY)
DEF_RTL_EXPR(ABS, "abs", "e", RTX_UNARY)
DEF_RTL_EXPR(SQRT, "sqrt", "e", RTX_UNARY)
DEF_RTL_EXPR(BSWAP, "bswap", "e", RTX_UNARY)
DEF_RTL_EXPR(FFS, "ffs", "e", RTX_UNARY)
DEF_RTL_EXPR(CLZ, "clz", "e", RTX_UNARY)
DEF_RTL_EXPR(CTZ, "ctz", "e", RTX_UNARY)
DEF_RTL_EXPR(POPCOUNT, "popcount", "e", RTX_UNARY)
DEF_RTL_EXPR(PARITY, "parity", "e", RTX_UNARY)
DEF_RTL_EXPR(SIGN_EXTRACT, "sign_extract", "eee", RTX_BITFIELD_OPS)
DEF_RTL_EXPR(ZERO_EXTRACT, "zero_extract", "eee", RTX_BITFIELD_OPS)
DEF_RTL_EXPR(HIGH, "high", "e", RTX_CONST_OBJ)
DEF_RTL_EXPR(LO_SUM, "lo_sum", "ee", RTX_OBJ)
DEF_RTL_EXPR(VEC_MERGE, "vec_merge", "eee", RTX_TERNARY)
DEF_RTL_EXPR(VEC_SELECT, "vec_select", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(VEC_CONCAT, "vec_concat", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(VEC_DUPLICATE, "vec_duplicate", "e", RTX_UNARY)
DEF_RTL_EXPR(SS_PLUS, "ss_plus", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(US_PLUS, "us_plus", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(SS_MINUS, "ss_minus", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(SS_NEG, "ss_neg", "e", RTX_UNARY)
DEF_RTL_EXPR(US_NEG, "us_neg", "e", RTX_UNARY)
DEF_RTL_EXPR(SS_ABS, "ss_abs", "e", RTX_UNARY)
DEF_RTL_EXPR(SS_ASHIFT, "ss_ashift", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(US_ASHIFT, "us_ashift", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(US_MINUS, "us_minus", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(SS_TRUNCATE, "ss_truncate", "e", RTX_UNARY)
DEF_RTL_EXPR(US_TRUNCATE, "us_truncate", "e", RTX_UNARY)
DEF_RTL_EXPR(VAR_LOCATION, "var_location", "tei", RTX_EXTRA)
};
#define NUM_RTX_CODE ARRAY_SIZE(defs)

 const char *formats[NUM_RTX_CODE];

 const char *type_from_format	(int);
 const char *accessor_from_format	(int);
 int special_format		(const char *);
 void find_formats		(void);
 void gendecl			(const char *);


 const char *
type_from_format (int c)
{
  switch (c)
    {
    case 'i':
      return "int ";

    case 'w':
      return "HOST_WIDE_INT ";

    case 's':
      return "const char *";

    case 'e':  case 'u':
      return "rtx ";

    case 'E':
      return "rtvec ";
    case 'b':
      return "struct bitmap_head_def *";  /* bitmap - typedef not available */
    case 't':
      return "union tree_node *";  /* tree - typedef not available */
    case 'B':
      return "struct basic_block_def *";  /* basic block - typedef not available */
    default:
      gcc_unreachable ();
    }
}

/* Decode a format letter into the proper accessor function.  */

 const char *
accessor_from_format (int c)
{
  switch (c)
    {
    case 'i':
      return "XINT";

    case 'w':
      return "XWINT";

    case 's':
      return "XSTR";

    case 'e':  case 'u':
      return "XEXP";

    case 'E':
      return "XVEC";

    case 'b':
      return "XBITMAP";

    case 't':
      return "XTREE";

    case 'B':
      return "XBBDEF";

    default:
      gcc_unreachable ();
    }
}


/* Place a list of all format specifiers we use into the array FORMAT.  */

 void
find_formats (void)
{
  unsigned int i;

  for (i = 0; i < NUM_RTX_CODE; i++)
    {
      const char **f;

     if (strchr (defs[i].format, '*') != 0 || strchr (defs[i].format, 'V') != 0 || strchr (defs[i].format, 'S') != 0 || strchr (defs[i].format, 'n') != 0)
       continue;

      for (f = formats; *f; f++)
	if (! strcmp (*f, defs[i].format))
	  break;

      if (*f == 0)
	*f = defs[i].format;
    }
}

/* Write the declarations for the routine to allocate RTL with FORMAT.  */

 void
gendecl (const char *format)
{
  const char *p;
  int i, pos;

  printf ("extern rtx gen_rtx_fmt_%s_stat\t (RTX_CODE, ", format);
  printf ("enum machine_mode mode");

  /* Write each parameter that is needed and start a new line when the line
     would overflow.  */
  for (p = format, i = 0, pos = 75; *p != 0; p++)
    if (*p != '0')
      {
	int ourlen = strlen (type_from_format (*p)) + 6 + (i > 9);

	printf (",");
	if (pos + ourlen > 76)
	  printf ("\n\t\t\t\t      "), pos = 39;

	printf (" %sarg%d", type_from_format (*p), i++);
	pos += ourlen;
      }
}



/* This is the main program.  We accept only one argument, "-h", which
   says we are writing the genrtl.h file.  Otherwise we are writing the
   genrtl.c file.  */

int
main (int argc, char **argv)
{
  find_formats ();

  const char **fmt;


  for (fmt = formats; *fmt; ++fmt)
    gendecl (*fmt);

  return 0;
}

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From - Thu Nov 08 21:06:01 2018
X-Mozilla-Status: 0011
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Modestas Vainius <modestas@vainius.eu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Bug#561203: threads and fork on machine with VIPT-WB cache
Date: Sun, 6 Jun 2010 04:01:23 +0300
Lines: 58
Approved: news@gmane.org
Message-ID: <201006060401.31700.modestas@vainius.eu>
References: <20100408224446.96F294FA3@hiauly1.hia.nrc.ca> <4C0850CB.20703@fsij.org> <20100604052106.GC15860@lackof.org>
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NNTP-Posting-Date: Sun, 6 Jun 2010 01:02:55 +0000 (UTC)
Cc: NIIBE Yutaka <gniibe@fsij.org>, 561203@bugs.debian.org,
	John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
	deller@gmx.de, linux-parisc@vger.kernel.org,
	pkg-gauche-devel@lists.alioth.debian.org, carlos@systemhalted.org
To: dann frazier <dannf@debian.org>
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Hello,

On penktadienis 04 Bir=C5=BEelis 2010 08:21:06 dann frazier wrote:
> > My case and my analysis talked about UP kernel, and John David Anglin
> >=20
> > made a patch:
> > 	http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D561203#144
> >=20
> > After that, the discussion went to SMP cases.
> >=20
> > It would be better to evaluate the patch again, and make sure it works
> > for UP case and fix failures of buildd, then apply for Linux in Debian
> > (only) for HPPA.
> >=20
> > I know that the patch is not that ideal because it touches
> > architecture independent part of Linux, but it is worth for Linux in
> > Debian (or Linux for the HPPA machine of buildd, at least).
>=20
> I'm happy to test the patch if necessary to help push this change
> upstream. However, we do need the change to go upstream before we can
> include it in the Debian kernel.

I made a hackish patch for QProcess in Qt (usleep(1000) before fork()) whic=
h=20
seems to reduce likelihood of the failure to very rare again. Once a new=20
revision of qt4-x11 is uploaded to sid (soon I believe), KDE applications=20
should be able to build again (hopefully).

Obviously it would be better to get this bug fixed for real but at least no=
w=20
the whole KDE stack won't be held by it while we wait.

=2D-=20
Modestas Vainius <modestas@vainius.eu>

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From - Thu Nov 08 21:06:01 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: dann frazier <dannf@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Bug#561203: threads and fork on machine with VIPT-WB cache
Date: Mon, 7 Jun 2010 11:11:37 -0600
Lines: 60
Approved: news@gmane.org
Message-ID: <20100607171136.GA14186@lackof.org>
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NNTP-Posting-Date: Mon, 7 Jun 2010 17:11:52 +0000 (UTC)
Cc: NIIBE Yutaka <gniibe@fsij.org>,
	Modestas Vainius <modestas@vainius.eu>,
	John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
	deller@gmx.de, linux-parisc@vger.kernel.org,
	pkg-gauche-devel@lists.alioth.debian.org, carlos@systemhalted.org
To: Thibaut VARENE <varenet@debian.org>, 561203@bugs.debian.org
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On Fri, Jun 04, 2010 at 12:44:55PM +0200, Thibaut VARENE wrote:
> On Fri, Jun 4, 2010 at 7:21 AM, dann frazier <dannf@debian.org> wrote=
:
> > On Fri, Jun 04, 2010 at 10:03:07AM +0900, NIIBE Yutaka wrote:
> >> Modestas Vainius wrote:
> >>>> Note that Debian's buildds run a UP kernel, so as soon as those =
fixes
> >>>> go upstream we can pull them in. Thanks for all your work here!
> >>>>
> >>>
> >>> Well, as long as this is unfixed or at least "common", I don't se=
e how hppa
> >>> can be considered to be a release arch. Is that UP patch availabl=
e somewhere?
> >>
> >> My case and my analysis talked about UP kernel, and John David Ang=
lin
> >> made a patch:
> >> =A0 =A0 =A0 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D561=
203#144
> >>
> >> After that, the discussion went to SMP cases.
> >>
> >> It would be better to evaluate the patch again, and make sure it w=
orks
> >> for UP case and fix failures of buildd, then apply for Linux in De=
bian
> >> (only) for HPPA.
> >>
> >> I know that the patch is not that ideal because it touches
> >> architecture independent part of Linux, but it is worth for Linux =
in
> >> Debian (or Linux for the HPPA machine of buildd, at least).
> >
> > I'm happy to test the patch if necessary to help push this change
> > upstream. However, we do need the change to go upstream before we c=
an
> > include it in the Debian kernel.
>=20
> Just for reference, I've summarized the test cases and related patche=
s here:
> http://wiki.parisc-linux.org/TestCases

Cool - that is helpful. I've updated the kernel on peri/penalosa with
the various patches listed there that have gone upstream, but I'm not
seeing better results with any failing packages.

btw, I thought it would be useful to edit that page and tag each patch
with its status in Debian (in-official-kernel, installed-on-buildds,
etc), but the page appears to be immutable.

--=20
dann frazier

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Le 7 juin 10 =E0 19:11, dann frazier a =E9crit :

> btw, I thought it would be useful to edit that page and tag each patc=
h
> with its status in Debian (in-official-kernel, installed-on-buildds,
> etc), but the page appears to be immutable.


The wiki can only be edited by registered (and approved) users (we had =
=20
a lot of defacing), see [1] for details.

Please register, I'd be happy to approve your account ;-)

Cheers,
T-Bone

[1] http://wiki.parisc-linux.org/WikiAccessPolicy

--=20
Thibaut VAR=C8NE
http://www.parisc-linux.org/~varenet/

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From - Thu Nov 08 21:06:01 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: gcc-4.5 -fdelayed-branch strikes back
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On Sat, 05 Jun 2010, Guy Martin wrote:

> 
> Hi Dave,
> 
> I've stripped down gengenrtl.c to the maximum and I'm able to reproduce
> the issue with the attached file.
> 
> I've observed the following :
> gcc -O2  -> Segv
> gcc -O2 -fno-delayed-branch -> OK
> gcc -O1 -> OK
> gcc -O1 -freorder-blocks -> Segv
> gcc -O1 -freorder-blocks -fno-delayed-branch -> OK
> gcc -O0 -freorder-blocks -fdelayed-branch -> OK
> 
> For reference, the build break when compiled the following way :
> make -j2 LDFLAGS="-Wl,-O1" STAGE1_CFLAGS="-O"
> LIBPATH=/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.5.0 BOOT_CFLAGS="-O2
> -pipe -march=2.0" bootstrap-lean 

I haven't had a chance to try the your stripped down gengenrtl.c
but there is definitely a problem compiling the 4.5 branch with
4.4 using STAGE1_CFLAGS="-O".  This didn't occur with 4.3.  I get
an ICE in stage1 configuration of libgcc with 4.4.  At this point,
I don't know the cause but this is bad as it indicates a major
bug with 4.4 on hppa.  -fno-reorder-blocks didn't help.

As a general rule, it is not a good idea to build stage1 with
optimisation.  It is not tested.  I get a successful bootstrap
at -O0.  I would guess 4.5 can probably compile 4.5 with -O,
but I haven't tested it.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: dann frazier <dannf@debian.org>
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On Mon, Jun 07, 2010 at 08:27:44PM +0200, Thibaut VAR=C8NE wrote:
> Le 7 juin 10 =E0 19:11, dann frazier a =E9crit :
>
>> btw, I thought it would be useful to edit that page and tag each pat=
ch
>> with its status in Debian (in-official-kernel, installed-on-buildds,
>> etc), but the page appears to be immutable.
>
>
> The wiki can only be edited by registered (and approved) users (we ha=
d a=20
> lot of defacing), see [1] for details.
>
> Please register, I'd be happy to approve your account ;-)

ah, ok. My username is DannFrazier

> Cheers,
> T-Bone
>
> [1] http://wiki.parisc-linux.org/WikiAccessPolicy



--=20
dann frazier

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Hi Dave,

> I haven't had a chance to try the your stripped down gengenrtl.c
> but there is definitely a problem compiling the 4.5 branch with
> 4.4 using STAGE1_CFLAGS="-O".  This didn't occur with 4.3.  I get
> an ICE in stage1 configuration of libgcc with 4.4.  At this point,
> I don't know the cause but this is bad as it indicates a major
> bug with 4.4 on hppa.  -fno-reorder-blocks didn't help.

I'm able to reproduce the same behavior with gcc-4.5 trying to build
itself. Can you try with -fno-delayed-branch ?
I think -freorder-blocks is just a way to trigger the issue with -O1.

The test case should make things pretty easy to repro. But if you need
some more details let me know.


Cheers,
  Guy
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Subject: Re: gcc-4.5 -fdelayed-branch strikes back
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On Fri, 11 Jun 2010, Guy Martin wrote:

Hi Guy,

> The test case should make things pretty easy to repro. But if you need
> some more details let me know.

I wasn't able to get your testcase to fail with my last build of 4.5.1.
It used 4.3.3 for the bootstrap compiler.  I'm fairly certain 4.5 is
being miscompliled in stage1 when 4.4 is used as the bootstap compiler.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 2.6.35-rc1 and RCU
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On Fri, Jun 04, 2010 at 11:50:33AM -0400, Kyle McMartin wrote:
> On Fri, Jun 04, 2010 at 01:39:42PM +0200, Helge Deller wrote:
> > On 06/04/2010 11:44 AM, Kyle McMartin wrote:
> > > Did anyone else see a hang on 2.6.35-rc1 just after RCU initializes?
> > 
> > Yes, I did see this as well.
> > 
> 
> Cool, next time I reboot I'll see if initcall_debug helps.
>

I debugged this further, it appears to be a code generation bug...

if kernel/rcutree_plugin.h::rcu_bootup_announce_oddness is not called,
we don't hang.

But it's just a bunch of #ifdef'd printks, so I'm not sure how that
could be going wrong.

More debugging to come.
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Subject: Re: [PATCH 4/5] parisc: Remove *(.text.*) pattern from the linker
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On Mon, 2010-06-14 at 13:38 +0100, Matt Fleming wrote:
> From: Matt Fleming <matthew.fleming@imgtec.com>
> 
> Drop the pattern from the linker script because the pattern is now
> provided by TEXT_TEXT.
> 
> Signed-off-by: Matt Fleming <matthew.fleming@imgtec.com>
> ---
>  arch/parisc/kernel/vmlinux.lds.S |    1 -
>  1 files changed, 0 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
> index d64a6bb..6784e39 100644
> --- a/arch/parisc/kernel/vmlinux.lds.S
> +++ b/arch/parisc/kernel/vmlinux.lds.S
> @@ -61,7 +61,6 @@ SECTIONS
>  		*(.text.sys_exit)
>  		*(.text.do_sigaltstack)
>  		*(.text.do_fork)
> -		*(.text.*)
>  		*(.fixup)
>  		*(.lock.text)		/* out-of-line lock text */
>  		*(.gnu.warning)


This would destroy all of the named parisc text ordering we do above the
removed line because now you'd have swept up all the function sections
before we get to them, won't it?

The ordering is an execution speed up on 32 bit systems because our
relative jump is so short.

James



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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: pass through '\t' to early (iodc) console
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The firmware handles '\t' internally, so stop trying to emulate it
(which, incidentally, had a bug in it.)

Fixes a really weird hang at bootup in rcu_bootup_announce, which,
as far as I can tell, is the first printk in the core kernel to use
a tab as the first character.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 arch/parisc/kernel/firmware.c |   12 ++----------
 1 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 4c247e0..df971fa 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1123,7 +1123,6 @@ static char __attribute__((aligned(64))) iodc_dbuf[4096];
  */
 int pdc_iodc_print(const unsigned char *str, unsigned count)
 {
-	static int posx;        /* for simple TAB-Simulation... */
 	unsigned int i;
 	unsigned long flags;
 
@@ -1133,19 +1132,12 @@ int pdc_iodc_print(const unsigned char *str, unsigned count)
 			iodc_dbuf[i+0] = '\r';
 			iodc_dbuf[i+1] = '\n';
 			i += 2;
-			posx = 0;
 			goto print;
-		case '\t':
-			while (posx & 7) {
-				iodc_dbuf[i] = ' ';
-				i++, posx++;
-			}
-			break;
 		case '\b':	/* BS */
-			posx -= 2;
+			i--; /* overwrite last */
 		default:
 			iodc_dbuf[i] = str[i];
-			i++, posx++;
+			i++;
 			break;
 		}
 	}
-- 
1.7.0.1

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This patch adds a tty driver to the PDC console. It allows the use
of ports not supported by linux as a console (e.g. serial port on
C3600). The tty driver will not register the ttyB device if PDC console
driver has been unregistered. This happens when the early printk
console is disabled as it has not been selected as the primary console.

Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
--MP_/VRBeZmNKgI2oDLfo3pBW1Rk
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diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 1ff366c..b838ef3 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -12,6 +12,7 @@
  *    Copyright (C) 2001 Helge Deller <deller at parisc-linux.org>
  *    Copyright (C) 2001 Thomas Bogendoerfer <tsbogend at parisc-linux.org>
  *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
+ *    Copyright (C) 2010 Guy Martin <gmsoft at tuxicoman.be>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -31,12 +32,11 @@
 
 /*
  *  The PDC console is a simple console, which can be used for debugging 
- *  boot related problems on HP PA-RISC machines.
+ *  boot related problems on HP PA-RISC machines. It is also useful when no
+ *  other console works.
  *
  *  This code uses the ROM (=PDC) based functions to read and write characters
  *  from and to PDC's boot path.
- *  Since all character read from that path must be polled, this code never
- *  can or will be a fully functional linux console.
  */
 
 /* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems. 
@@ -53,6 +53,7 @@
 #include <asm/pdc.h>		/* for iodc_call() proto and friends */
 
 static DEFINE_SPINLOCK(pdc_console_lock);
+static struct console pdc_cons;
 
 static void pdc_console_write(struct console *co, const char *s, unsigned count)
 {
@@ -85,12 +86,138 @@ static int pdc_console_setup(struct console *co, char *options)
 
 #if defined(CONFIG_PDC_CONSOLE)
 #include <linux/vt_kern.h>
+#include <linux/tty_flip.h>
+
+#define PDC_CONS_POLL_DELAY (30 * HZ / 1000)
+
+static struct timer_list pdc_console_timer;
+
+extern struct console * console_drivers;
+
+static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp)
+{
+
+	mod_timer(&pdc_console_timer, jiffies + PDC_CONS_POLL_DELAY);
+
+	return 0;
+}
+
+static void pdc_console_tty_close(struct tty_struct *tty, struct file *filp)
+{
+	if (!tty->count)
+		del_timer(&pdc_console_timer);
+}
+
+static int pdc_console_tty_write(struct tty_struct *tty, const unsigned char *buf, int count)
+{
+	pdc_console_write(NULL, buf, count);
+	return count;
+}
+
+static int pdc_console_tty_write_room(struct tty_struct *tty)
+{
+	return 32768; /* no limit, no buffer used */
+}
+
+static int pdc_console_tty_chars_in_buffer(struct tty_struct *tty)
+{
+	return 0; /* no buffer */
+}
+
+static struct tty_driver *pdc_console_tty_driver;
+
+static const struct tty_operations pdc_console_tty_ops = {
+	.open = pdc_console_tty_open,
+	.close = pdc_console_tty_close,
+	.write = pdc_console_tty_write,
+	.write_room = pdc_console_tty_write_room,
+	.chars_in_buffer = pdc_console_tty_chars_in_buffer,
+};
+
+static void pdc_console_poll(unsigned long unused)
+{
+
+	int data, count = 0;
+
+	struct tty_struct *tty = pdc_console_tty_driver->ttys[0];
+
+	if (!tty)
+		return;
+
+	while (1) {
+		data = pdc_console_poll_key(NULL);
+		if (data == -1)
+			break;
+		tty_insert_flip_char(tty, data & 0xFF, TTY_NORMAL);
+		count ++;
+	}
+
+	if (count)
+		tty_flip_buffer_push(tty);
+
+	if (tty->count && (pdc_cons.flags & CON_ENABLED))
+		mod_timer(&pdc_console_timer, jiffies + PDC_CONS_POLL_DELAY);
+}
+
+static int __init pdc_console_tty_driver_init(void)
+{
+
+	int err;
+	struct tty_driver *drv;
+
+	/* Check if the console driver is still registered.
+	 * It is unregistered if the pdc console was not selected as the
+	 * primary console. */
+
+	struct console *tmp = console_drivers;
+
+	for (tmp = console_drivers; tmp; tmp = tmp->next)
+		if (tmp == &pdc_cons)
+			break;
+	
+	if (!tmp) {
+		printk(KERN_INFO "PDC console driver not registered anymore, not creating %s\n", pdc_cons.name);
+		return -ENODEV;
+	}
+
+	printk(KERN_INFO "The PDC console driver is still registered, removing CON_BOOT flag\n");
+	pdc_cons.flags &= ~CON_BOOT;
+
+	drv = alloc_tty_driver(1);
+
+	if (!drv)
+		return -ENOMEM;
+	
+	drv->driver_name = "pdc_cons";
+	drv->name = "ttyB";
+	drv->major = MUX_MAJOR;
+	drv->minor_start = 0;
+	drv->type = TTY_DRIVER_TYPE_SYSTEM;
+	drv->init_termios = tty_std_termios;
+	drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_RESET_TERMIOS;
+	tty_set_operations(drv, &pdc_console_tty_ops);
+
+	err = tty_register_driver(drv);
+	if (err) {
+		printk(KERN_ERR "Unable to register the PDC console TTY driver\n");
+		return err;
+	}
+
+	pdc_console_tty_driver = drv;
+
+	/* No need to initialize the pdc_console_timer if tty isn't allocated */
+	init_timer(&pdc_console_timer);
+	pdc_console_timer.function = pdc_console_poll;
+
+	return 0;
+}
+
+module_init(pdc_console_tty_driver_init);
 
 static struct tty_driver * pdc_console_device (struct console *c, int *index)
 {
-	extern struct tty_driver console_driver;
-	*index = c->index ? c->index-1 : fg_console;
-	return &console_driver;
+	*index = c->index;
+	return pdc_console_tty_driver;
 }
 #else
 #define pdc_console_device NULL
@@ -101,7 +228,7 @@ static struct console pdc_cons = {
 	.write =	pdc_console_write,
 	.device =	pdc_console_device,
 	.setup =	pdc_console_setup,
-	.flags =	CON_BOOT | CON_PRINTBUFFER | CON_ENABLED,
+	.flags =	CON_BOOT | CON_PRINTBUFFER,
 	.index =	-1,
 };
 

--MP_/VRBeZmNKgI2oDLfo3pBW1Rk--
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From - Thu Nov 08 21:06:02 2018
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From: Matt Fleming <matt@console-pimps.org>
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Subject: Re: [PATCH 4/5] parisc: Remove *(.text.*) pattern from the linker script
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On Mon, 14 Jun 2010 10:20:59 -0500, James Bottomley <James.Bottomley@HansenPartnership.com> wrote:
> 
> This would destroy all of the named parisc text ordering we do above the
> removed line because now you'd have swept up all the function sections
> before we get to them, won't it?

Argh, sorry, you're completely right. I was a bit overzealous with this
change. I'll drop it. In fact, given the very specific things that
parisc does with the .text.* sections, this entire series makes no sense
- it doesn't make sense to change TEXT_TEXT in a way that means parisc
can no longer use it.

Thanks for the review, James.

From - Thu Nov 08 21:06:03 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: pass through '\t' to early (iodc) console
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On 06/14/2010 06:02 PM, Kyle McMartin wrote:
> The firmware handles '\t' internally, so stop trying to emulate it
> (which, incidentally, had a bug in it.)
> 
> Fixes a really weird hang at bootup in rcu_bootup_announce, which,
> as far as I can tell, is the first printk in the core kernel to use
> a tab as the first character.
> 
> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

Kernel boots now nicely.
Thanks Kyle!

Tested-by: Helge Deller <deller@gmx.de>


> ---
>  arch/parisc/kernel/firmware.c |   12 ++----------
>  1 files changed, 2 insertions(+), 10 deletions(-)
> 
> diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
> index 4c247e0..df971fa 100644
> --- a/arch/parisc/kernel/firmware.c
> +++ b/arch/parisc/kernel/firmware.c
> @@ -1123,7 +1123,6 @@ static char __attribute__((aligned(64))) iodc_dbuf[4096];
>   */
>  int pdc_iodc_print(const unsigned char *str, unsigned count)
>  {
> -	static int posx;        /* for simple TAB-Simulation... */
>  	unsigned int i;
>  	unsigned long flags;
>  
> @@ -1133,19 +1132,12 @@ int pdc_iodc_print(const unsigned char *str, unsigned count)
>  			iodc_dbuf[i+0] = '\r';
>  			iodc_dbuf[i+1] = '\n';
>  			i += 2;
> -			posx = 0;
>  			goto print;
> -		case '\t':
> -			while (posx & 7) {
> -				iodc_dbuf[i] = ' ';
> -				i++, posx++;
> -			}
> -			break;
>  		case '\b':	/* BS */
> -			posx -= 2;
> +			i--; /* overwrite last */
>  		default:
>  			iodc_dbuf[i] = str[i];
> -			i++, posx++;
> +			i++;
>  			break;
>  		}
>  	}

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On Mon, 2010-06-14 at 18:02 -0400, Tim Abbott wrote:
> On Mon, 14 Jun 2010, James Bottomley wrote:
> 
> > On Mon, 2010-06-14 at 20:33 +0100, Matt Fleming wrote:
> > > On Mon, 14 Jun 2010 10:32:46 -0400 (EDT), Tim Abbott <tabbott@ksplice.com> wrote:
> > > > 
> > > > I was planning to submit in the next couple weeks a change that adds 
> > > > support for building the kernel with -ffunction-sections -fdata-sections, 
> > > > which would have as a piece of it adding to TEXT_TEXT the following 
> > > > expression:
> > > > 
> > > > 	*(.text.[A-Za-z$_]*)	/* handle -ffunction-sections */\
> > 
> > Just as a point of technical interest, that won't handle
> > -ffunction-sections.  At least on parisc, we get a
> > section .text.<function name> for every function.  This means that any
> > character legal in a function name can appear there, not just letters
> > and underscores (we get millicode ones with dollar signs as well for
> > instance).  That's why *(.text.*) is safer
> 
> Hi James,
> 
> I believe that the pattern [A-Za-z$_] matches all valid characters to 
> start a function name (in particular, it includes "$").  If I'm missing 
> any valid characters for the start of a function name, please correct me.

Well, our linker seems to generate annoying symbols with carets in
them ...

> To give some background, the strategy here for -ffunction-sections support 
> is to have the kernel's "magic" text sections all start with
> 
> ".text.."
> 
> while the sections generated by -ffunction-sections will start with
> 
> ".text." followed by a character other than "."
> 
> These sets are disjoint, and so if we have a complete set of valid next 
> characters in the pattern ".text.[A-Za-z$_]*", it will be just as good as 
> ".text.*" for matching the sections produced by -ffunction-sections.  (As 
> a sidenote, I would prefer .text.[^.], but I don't believe that is valid 
> linker script syntax).
> 
> While one could in principle try to handle things by not renaming the 
> .text.foo sections and instead just placing the linker script code for 
> them all before a .text.* item in the linker script, that approach is 
> really fragile.  I think the "text..foo" approach is a good design and I 
> am not aware of any problems with it.

OK, but how about some actual explanation?  You've just characterised
the current -ffunction-sections scheme that parisc has used for decades
as "fragile"

> Some more detailed explanation is available here:
> <http://lkml.org/lkml/2010/2/19/365>

That's still a bit short on explanations.

But if I infer from the rest, someone, somewhere broke the convention
that all our special linux sections be called .XX.data and .XX.text to
distinguish them from the .text.FF and .data.YY the compiler will
generate with the relevant sectional directives? because it's been
working OK for us for a while.

To fix the breakage, the proposal now is to name all linux special
sections as .text..XX and .data..XX?  I can see that's more standard
looking that XX.text and XX.data, but not necessarily that it's better.

This then introduces a problem of matching because .text.X and .text..X
are hard to distinguish using the linker matching scripts.

So even if I buy the rename of the linux symbols, what about using a
linker defined symbol that's illegal as a function as the initial
separator instead of .?  So hyphen looks the obvious one ... you can
have all the linux special sections being .text- and .data- then we can
easily distinguish.

James

> > > > which should match the .text.foo sections generated by -ffunction-sections 
> > > > but not the kernel's special sections which now all have names of the form 
> > > > .text..foo.
> > 
> > They do?  I don't find any symbols like that on parisc.
> > 
> > Historically, the way we've differentiated is that kernel special
> > symbols tend to have the text designator *after* the name, whereas the
> > linker puts it before  ... of course that has issues for functions
> > called things like text or init ... but we try not to do that ...
> 
> It looks like the patches for the .text.foo rename haven't been sent yet, 
> my mistake.  I've primarily been tracking the much larger .data.foo -> 
> .data..foo transition.  I expect a patch series to rename the remaining 
> sections and add -ffunction-sections support will be sent by either Denys 
> Vlasenko or myself in the next few weeks.
> 
> While the kernel does use section names like ".init.text", there were 
> before quite recently a very large number of kernel special sections with 
> names like ".data.page_aligned" which would conflict with:
> 
> static int page_aligned;
> 
> when compiling with -fdata-sections.
> 
> In fact, we initially sent patches that changed these all to e.g. 
> ".page_aligned.data".  But we discovered that it is problem when writing 
> assembly files, since if you write:
> 
> .section ".page_aligned.data"
> 
> it doesn't work  -- you need to specify the load flags like so:
> 
> .section ".page_aligned.data", "aw"
> 
> while if you write e.g.
> 
> .section ".data..page_aligned"
> 
> the assembler will automatically set the right load flags for read/write 
> data.
> 
> Since this is a subtle issue and I'd be surprised if there weren't a lot 
> of people who work on assembly code in the kernel who don't know about 
> this subtle issue, the ".page_aligned.data" naming scheme is destined to 
> result in some frustrating bugs.  So we settled on the more bug-proof 
> ".data..page_aligned" naming scheme for adding -fdata-sections support.
> 
> It would probably be a good cleanup to go through and rename e.g. 
> .init.text to .text..init so that we're consistent everywhere, but I'd 
> like to get -ffunction-sections working before starting that project 
> myself.




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On Mon, 2010-06-14 at 18:21 -0400, Tim Abbott wrote:
> On Mon, 14 Jun 2010, Matt Fleming wrote:
> 
> > Do these special kernel sections include things like the parisc
> > .text.do_softirq, .text.sys_exit, etc? James raised a good objection to
> > the parisc patch of this series. I'm guessing most people saw it already
> > but I'll paste it here for reference,
> > 
> >     This would destroy all of the named parisc text ordering we do above the
> >     removed line because now you'd have swept up all the function sections
> >     before we get to them, won't it?
> > 
> >     The ordering is an execution speed up on 32 bit systems because our
> >     relative jump is so short.
> > 
> > Will you changes handle this OK?
> 
> I think I addressed this in my reply to James just now, but to be super 
> clear, this -ffunction-sections plan involves renaming .text.do_softirq to 
> .text..do_softirq (etc.) first.

OK, so that doesn't make a lot of sense to me; I suspect because you
don't understand what parisc is doing.  These aren't names of linux
special sections ... they're names of function sections.  For
efficiency, we take specific hot functions and place them together in
the linker script so the jumps between them are small enough to be coded
as relative on the 32 bit architecture.  It's really just a more
efficient way of laying out the binary.

James



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On Mon, 14 Jun 2010, James Bottomley wrote:

> > I believe that the pattern [A-Za-z$_] matches all valid characters to 
> > start a function name (in particular, it includes "$").  If I'm missing 
> > any valid characters for the start of a function name, please correct me.
> 
> Well, our linker seems to generate annoying symbols with carets in
> them ...

The question here is: is there C code that when compiled with 
-ffunction-sections will generate an ELF section with a name that starts 
with ".text.^"?  For that to happen, you would need a function whose name 
started with "^", which isn't valid C.

The relevant namespace here is the names for ELF sections generated by 
-ffunction-sections.  These are in turn computed by the compiler from 
function names -- there's no potential conflict created by 
linker-generated symbols whose names start with a caret.  Similarly, for 
-fdata-sections, we only care about the names of C data objects, which 
also can't start with a caret.

> > While one could in principle try to handle things by not renaming the 
> > .text.foo sections and instead just placing the linker script code for 
> > them all before a .text.* item in the linker script, that approach is 
> > really fragile.  I think the "text..foo" approach is a good design and I 
> > am not aware of any problems with it.
> 
> OK, but how about some actual explanation?  You've just characterised
> the current -ffunction-sections scheme that parisc has used for decades
> as "fragile"

The current parisc situation is fine.

What I was trying to draw a contrast with is supporting -fdata-sections by 
adding ".data.*" to DATA_DATA, and then trying to make sure that all the 
architecture linker scripts handle all the kernel's special data sections 
with names like ".data.foo" before the place where DATA_DATA appears in 
their linker scripts.  Most of the architecture linker scripts mention 
more than a half dozen special kernel sections with names of the form 
".data.foo", often in fairly random orders, and so it would be really 
fragile to add the constraint that these sections need to all appear above 
DATA_DATA.

Adding ".data.[A-Za-z$_]" to DATA_DATA doesn't have this problem.

If we similarly added ".text.[A-Za-z$_]" to TEXT_TEXT, we'd presumably 
move the 4 named .text.foo sections before TEXT_TEXT; I don't think any 
other architectures would require any work.

> > Some more detailed explanation is available here:
> > <http://lkml.org/lkml/2010/2/19/365>
> 
> That's still a bit short on explanations.
>
> But if I infer from the rest, someone, somewhere broke the convention
> that all our special linux sections be called .XX.data and .XX.text to
> distinguish them from the .text.FF and .data.YY the compiler will
> generate with the relevant sectional directives? because it's been
> working OK for us for a while.

I don't know the full history here.  But prior to the ".data.foo" -> 
".data..foo" patches that were merged recently, there were a bunch of 
cross-architecture sections with these sorts of names, e.g.:

.data.page_aligned
.data.nosave
.data.read_mostly
.data.cacheline_aligned
.data.lock_aligned
.data.percpu*
.data.init_task
etc.

There were also a bunch of ".text.foo" sections on individual 
architectures, many of which currently don't support -ffunction-sections 
(sh, ia64, x86, mips, etc.).

However, there weren't any .text.foo sections that are cross-architecture.  
Since parisc only uses -ffunction-sections, and not -fdata-sections, the 
popular .data.foo naming scheme doesn't cause any breakage on parisc.

The only architecture that does use -fdata-sections is frv, and there 
could theoretically have been breakage there, but in practice it's likely 
nobody has written kernel code that would actually conflict, e.g. "static 
int percpu = 3;", yet.

> To fix the breakage, the proposal now is to name all linux special
> sections as .text..XX and .data..XX?  I can see that's more standard
> looking that XX.text and XX.data, but not necessarily that it's better.

Yes, that's the proposal.

> This then introduces a problem of matching because .text.X and .text..X
> are hard to distinguish using the linker matching scripts.

Right.  I believe that this is totally solvable with a simple linker 
script pattern, since the space of valid names for functions and data 
objects in C code is quite restricted (and that the implementation of 
using e.g. ".data.[A-Za-z$_]*" solves this problem).

> So even if I buy the rename of the linux symbols, what about using a 
> linker defined symbol that's illegal as a function as the initial 
> separator instead of .?  So hyphen looks the obvious one ... you can 
> have all the linux special sections being .text- and .data- then we can 
> easily distinguish.

Is "." a valid first character for a function name?  I don't see the 
problem with using "." here.

Both .page_aligned.data and .data-page_aligned are valid choices (and in 
fact, the first patch series I sent on this topic about 18 months ago did 
.page_aligned.data, I think).

The main technical difference between ".data..page_aligned" and 
".page_aligned.data" in my view is that you need to be more careful when 
writing assembly files with ".page_aligned.data".

To give an example, if I run the following:

$ cat > foo.s 
.section .data-page-aligned
	.long 0
.section .data.page_aligned
	.long 1
$ gcc -c foo.s -o foo.o
$ objdump -h foo.o 
foo.o:     file format elf32-i386

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         00000000  00000000  00000000  00000034  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  1 .data         00000000  00000000  00000000  00000034  2**2
                  CONTENTS, ALLOC, LOAD, DATA
  2 .bss          00000000  00000000  00000000  00000034  2**2
                  ALLOC
  3 .data-page-aligned 00000004  00000000  00000000  00000034  2**0
                  CONTENTS, READONLY
  4 .data.page_aligned 00000004  00000000  00000000  00000038  2**0
                  CONTENTS, ALLOC, LOAD, DATA

one can see that the .data-page-aligned section doesn't have the right 
section flags.  So I'm pretty sure the relevant assembler heuristic is 
looking for things starting with ".data.", not just ".data".

The kernel has a lot of code in assembly files that just does:

.section ".data"

and so there's a very real risk that folks who are doing pattern-matching 
development on assembly files will end up creating non-allocated sections 
by accident (I've certainly made this mistake myself, and there's a bug of 
this form in arch/x86/lib/thunk.S until commit 
c6c2d7a084d14a8a701be84872aa1b77d2945f46, so I don't think I'm alone)

I also think that ".data..page_aligned" is more readable as a new name for 
the former ".data.page_aligned" than ".page_aligned.data" is, but I think 
that's a secondary consideration.  ".data.-page_aligned" would be 
technically equivalent to ".data..page_aligned", but I think it is uglier.

	-Tim Abbott
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On Mon, 14 Jun 2010, James Bottomley wrote:

> On Mon, 2010-06-14 at 18:21 -0400, Tim Abbott wrote:
> > On Mon, 14 Jun 2010, Matt Fleming wrote:
> > 
> > > Do these special kernel sections include things like the parisc
> > > .text.do_softirq, .text.sys_exit, etc? James raised a good objection to
> > > the parisc patch of this series. I'm guessing most people saw it already
> > > but I'll paste it here for reference,
> > > 
> > >     This would destroy all of the named parisc text ordering we do above the
> > >     removed line because now you'd have swept up all the function sections
> > >     before we get to them, won't it?
> > > 
> > >     The ordering is an execution speed up on 32 bit systems because our
> > >     relative jump is so short.
> > > 
> > > Will you changes handle this OK?
> > 
> > I think I addressed this in my reply to James just now, but to be super 
> > clear, this -ffunction-sections plan involves renaming .text.do_softirq to 
> > .text..do_softirq (etc.) first.
> 
> OK, so that doesn't make a lot of sense to me; I suspect because you
> don't understand what parisc is doing.  These aren't names of linux
> special sections ... they're names of function sections.  For
> efficiency, we take specific hot functions and place them together in
> the linker script so the jumps between them are small enough to be coded
> as relative on the 32 bit architecture.  It's really just a more
> efficient way of laying out the binary.

Yeah, I'd forgotten parisc was doing -ffunction-sections, now I understand 
what you're talking about.  What I'd recommend is just moving the 
.text.do_softirq and friends like in the hunk below -- I believe that 
should achieve the same performance goals, and should have no conflict 
with adding a wildcard for -ffunction-sections generated sections to 
TEXT_TEXT.

	-Tim Abbott

diff --git a/arch/parisc/kernel/vmlinux.lds.S 
b/arch/parisc/kernel/vmlinux.lds.S
index d64a6bb..ad0d3d3 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -52,15 +52,15 @@ SECTIONS
        _text = .;              /* Text and read-only data */
        .text ALIGN(16) : {
                HEAD_TEXT
+               *(.text.do_softirq)
+               *(.text.sys_exit)
+               *(.text.do_sigaltstack)
+               *(.text.do_fork)
                TEXT_TEXT
                SCHED_TEXT
                LOCK_TEXT
                KPROBES_TEXT
                IRQENTRY_TEXT
-               *(.text.do_softirq)
-               *(.text.sys_exit)
-               *(.text.do_sigaltstack)
-               *(.text.do_fork)
                *(.text.*)
                *(.fixup)
                *(.lock.text)           /* out-of-line lock text */


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On Mon, 14 Jun 2010 19:24:41 +0200
Guy Martin <gmsoft@tuxicoman.be> wrote:

> 
> 
> This patch adds a tty driver to the PDC console. It allows the use
> of ports not supported by linux as a console (e.g. serial port on
> C3600).

Err, I meant the C8000.

  Guy
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On Tue, Jun 15, 2010 at 01:34:10PM +0200, Guy Martin wrote:
> On Mon, 14 Jun 2010 19:24:41 +0200
> Guy Martin <gmsoft@tuxicoman.be> wrote:
> 
> > 
> > 
> > This patch adds a tty driver to the PDC console. It allows the use
> > of ports not supported by linux as a console (e.g. serial port on
> > C3600).
> 
> Err, I meant the C8000.
> 

I figured... I'll take a look at it over the weekend. (Also, I'll see if
I can dig up the radeonfb hacks.)

--Kyle
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Subject: Re: [PATCH 1/5] vmlinux.lds.h: Include *(.text.*) in TEXT_TEXT
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On Mon, 2010-06-14 at 22:45 -0400, Tim Abbott wrote: 
> On Mon, 14 Jun 2010, James Bottomley wrote:
> 
> > > I believe that the pattern [A-Za-z$_] matches all valid characters to 
> > > start a function name (in particular, it includes "$").  If I'm missing 
> > > any valid characters for the start of a function name, please correct me.
> > 
> > Well, our linker seems to generate annoying symbols with carets in
> > them ...
> 
> The question here is: is there C code that when compiled with 
> -ffunction-sections will generate an ELF section with a name that starts 
> with ".text.^"?  For that to happen, you would need a function whose name 
> started with "^", which isn't valid C.

True ... but I didn't say that it was valid C.  I said the compiler is
spitting them out in the assembly ... I suspect it uses invalid C
function characters precisely to avoid clashes.

> The relevant namespace here is the names for ELF sections generated by 
> -ffunction-sections.  These are in turn computed by the compiler from 
> function names -- there's no potential conflict created by 
> linker-generated symbols whose names start with a caret.  Similarly, for 
> -fdata-sections, we only care about the names of C data objects, which 
> also can't start with a caret.
> 
> > > While one could in principle try to handle things by not renaming the 
> > > .text.foo sections and instead just placing the linker script code for 
> > > them all before a .text.* item in the linker script, that approach is 
> > > really fragile.  I think the "text..foo" approach is a good design and I 
> > > am not aware of any problems with it.
> > 
> > OK, but how about some actual explanation?  You've just characterised
> > the current -ffunction-sections scheme that parisc has used for decades
> > as "fragile"
> 
> The current parisc situation is fine.
> 
> What I was trying to draw a contrast with is supporting -fdata-sections by 
> adding ".data.*" to DATA_DATA, and then trying to make sure that all the 
> architecture linker scripts handle all the kernel's special data sections 
> with names like ".data.foo" before the place where DATA_DATA appears in 
> their linker scripts.  Most of the architecture linker scripts mention 
> more than a half dozen special kernel sections with names of the form 
> ".data.foo", often in fairly random orders, and so it would be really 
> fragile to add the constraint that these sections need to all appear above 
> DATA_DATA.
> 
> Adding ".data.[A-Za-z$_]" to DATA_DATA doesn't have this problem.
> 
> If we similarly added ".text.[A-Za-z$_]" to TEXT_TEXT, we'd presumably 
> move the 4 named .text.foo sections before TEXT_TEXT; I don't think any 
> other architectures would require any work.
> 
> > > Some more detailed explanation is available here:
> > > <http://lkml.org/lkml/2010/2/19/365>
> > 
> > That's still a bit short on explanations.
> >
> > But if I infer from the rest, someone, somewhere broke the convention
> > that all our special linux sections be called .XX.data and .XX.text to
> > distinguish them from the .text.FF and .data.YY the compiler will
> > generate with the relevant sectional directives? because it's been
> > working OK for us for a while.
> 
> I don't know the full history here.  But prior to the ".data.foo" -> 
> ".data..foo" patches that were merged recently, there were a bunch of 
> cross-architecture sections with these sorts of names, e.g.:
> 
> .data.page_aligned
> .data.nosave
> .data.read_mostly
> .data.cacheline_aligned
> .data.lock_aligned
> .data.percpu*
> .data.init_task
> etc.
> 
> There were also a bunch of ".text.foo" sections on individual 
> architectures, many of which currently don't support -ffunction-sections 
> (sh, ia64, x86, mips, etc.).
> 
> However, there weren't any .text.foo sections that are cross-architecture.  
> Since parisc only uses -ffunction-sections, and not -fdata-sections, the 
> popular .data.foo naming scheme doesn't cause any breakage on parisc.
> 
> The only architecture that does use -fdata-sections is frv, and there 
> could theoretically have been breakage there, but in practice it's likely 
> nobody has written kernel code that would actually conflict, e.g. "static 
> int percpu = 3;", yet.

Right, but what I was curious about, since, we already sorted all the
problems with text sections out on parisc by putting the .text as a
suffix not a prefix, and you have to change all the data sections
anyway, why not just follow established practise?

> > To fix the breakage, the proposal now is to name all linux special
> > sections as .text..XX and .data..XX?  I can see that's more standard
> > looking that XX.text and XX.data, but not necessarily that it's better.
> 
> Yes, that's the proposal.
> 
> > This then introduces a problem of matching because .text.X and .text..X
> > are hard to distinguish using the linker matching scripts.
> 
> Right.  I believe that this is totally solvable with a simple linker 
> script pattern, since the space of valid names for functions and data 
> objects in C code is quite restricted (and that the implementation of 
> using e.g. ".data.[A-Za-z$_]*" solves this problem).
> 
> > So even if I buy the rename of the linux symbols, what about using a 
> > linker defined symbol that's illegal as a function as the initial 
> > separator instead of .?  So hyphen looks the obvious one ... you can 
> > have all the linux special sections being .text- and .data- then we can 
> > easily distinguish.
> 
> Is "." a valid first character for a function name?  I don't see the 
> problem with using "." here.

The problem is that it's hard to get the linker to distinguish
between .text.. and .text. without funny regexp contortions.  However,
if the two sections began .text- and .text. they are easy to distinguish
because one prefix isn't a subset of the other.

> Both .page_aligned.data and .data-page_aligned are valid choices (and in 
> fact, the first patch series I sent on this topic about 18 months ago did 
> .page_aligned.data, I think).
> 
> The main technical difference between ".data..page_aligned" and 
> ".page_aligned.data" in my view is that you need to be more careful when 
> writing assembly files with ".page_aligned.data".
> 
> To give an example, if I run the following:
> 
> $ cat > foo.s 
> .section .data-page-aligned
> 	.long 0
> .section .data.page_aligned
> 	.long 1
> $ gcc -c foo.s -o foo.o
> $ objdump -h foo.o 
> foo.o:     file format elf32-i386
> 
> Sections:
> Idx Name          Size      VMA       LMA       File off  Algn
>   0 .text         00000000  00000000  00000000  00000034  2**2
>                   CONTENTS, ALLOC, LOAD, READONLY, CODE
>   1 .data         00000000  00000000  00000000  00000034  2**2
>                   CONTENTS, ALLOC, LOAD, DATA
>   2 .bss          00000000  00000000  00000000  00000034  2**2
>                   ALLOC
>   3 .data-page-aligned 00000004  00000000  00000000  00000034  2**0
>                   CONTENTS, READONLY
>   4 .data.page_aligned 00000004  00000000  00000000  00000038  2**0
>                   CONTENTS, ALLOC, LOAD, DATA
> 
> one can see that the .data-page-aligned section doesn't have the right 
> section flags.  So I'm pretty sure the relevant assembler heuristic is 
> looking for things starting with ".data.", not just ".data".
> 
> The kernel has a lot of code in assembly files that just does:
> 
> .section ".data"
> 
> and so there's a very real risk that folks who are doing pattern-matching 
> development on assembly files will end up creating non-allocated sections 
> by accident (I've certainly made this mistake myself, and there's a bug of 
> this form in arch/x86/lib/thunk.S until commit 
> c6c2d7a084d14a8a701be84872aa1b77d2945f46, so I don't think I'm alone)

But that commit isn't anything to do with the section not being
allocated.  That's actually irrelevant to us, since we sort out the
sectional allocations out at link time with the linker script (which
ends up completely ignoring the original file flags).  The problem,
specifically, is that the linker does a rename of two identically named
sections with different flags ... we would also get the same behaviour
if the linker thought two sections weren't mergeable even if they did
have identical flags.

In general, I think it's good practise for all use of sections to
specify the elf flags.

> I also think that ".data..page_aligned" is more readable as a new name for 
> the former ".data.page_aligned" than ".page_aligned.data" is, but I think 
> that's a secondary consideration.  ".data.-page_aligned" would be 
> technically equivalent to ".data..page_aligned", but I think it is uglier.

Actually, as I said, that would be .data- 

But, to be honest, I don't care that much about the data names because
we don't use -fdata-sections, the only objection is that having two
separate conventions for text and data is adding needless complexity ...
I do care about the text names, and I'd rather we stuck to the existing
convention there, or provided a good reason for the change ... and
wanting .text. as a prefix for everything is weak at best.

The specific objection I have to converting everything to the .text..*
prefix for linux sections is that the gather all function sections can
no longer be *(.text.*), but has to become a regular expression, which
is adding fragility.

James


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I'm not quite sure whose fault this one is.

However, this code in bnx2.c:

		if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
			next_rx_buf =
				&rxr->rx_buf_ring[
					RX_RING_IDX(NEXT_RX_BD(sw_cons))];
			prefetch(next_rx_buf->desc);
		}

Looks remarkably fragile: what exactly is it trying to do?

The commit that causes the problem:

commit a33fa66bcf365ffe5b79d1ae1d3582cc261ae56e
Author: Michael Chan <mchan@broadcom.com>
Date:   Thu May 6 08:58:13 2010 +0000

    bnx2: Add prefetches to rx path.

Looks fairly innocuous by the description.

Should parisc have a get_dma_ops()?  We don't need one because our dma
ops are per platform not per bus.

James


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From: David Miller <davem@davemloft.net>
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Subject: Re: bnx2 fails to compile on parisc because of missing
 get_dma_ops()
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From: James Bottomley <JBottomley@Novell.com>
Date: Wed, 16 Jun 2010 20:13:49 -0500

> However, this code in bnx2.c:
> 
> 		if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
> 			next_rx_buf =
> 				&rxr->rx_buf_ring[
> 					RX_RING_IDX(NEXT_RX_BD(sw_cons))];
> 			prefetch(next_rx_buf->desc);
> 		}
> 
> Looks remarkably fragile: what exactly is it trying to do?
> 
> The commit that causes the problem:
> 
> commit a33fa66bcf365ffe5b79d1ae1d3582cc261ae56e
> Author: Michael Chan <mchan@broadcom.com>
> Date:   Thu May 6 08:58:13 2010 +0000
> 
>     bnx2: Add prefetches to rx path.
> 
> Looks fairly innocuous by the description.
> 
> Should parisc have a get_dma_ops()?  We don't need one because our dma
> ops are per platform not per bus.

I think asking for get_dma_ops() directly in a driver is dodgy at
best, especially one that is meant to compile on any PCI supporting
system.  At least right now.
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel
Subject: Re: bnx2 fails to compile on parisc because of missing get_dma_ops()
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On Wed, Jun 16, 2010 at 9:13 PM, James Bottomley wrote:
> I'm not quite sure whose fault this one is.
>
> However, this code in bnx2.c:
>
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (!get_dma_ops(&pdev->dev)->sync_sin=
gle_for_cpu) {
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0next_rx_buf =3D
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0&rxr->=
rx_buf_ring[
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0RX_RING_IDX(NEXT_RX_BD(sw_cons))];
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0prefetch(next_rx_buf->=
desc);
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0}
>
> Looks remarkably fragile: what exactly is it trying to do?
>
> The commit that causes the problem:
>
> commit a33fa66bcf365ffe5b79d1ae1d3582cc261ae56e
> Author: Michael Chan <mchan@broadcom.com>
> Date: =A0 Thu May 6 08:58:13 2010 +0000
>
> =A0 =A0bnx2: Add prefetches to rx path.
>
> Looks fairly innocuous by the description.
>
> Should parisc have a get_dma_ops()? =A0We don't need one because our =
dma
> ops are per platform not per bus.

looks like it'll be broken on more than just parisc:
$ grep get_dma_ops arch/*/include/asm/ -rl | cut -d/ -f 2
alpha
ia64
microblaze
powerpc
sh
sparc
x86
-mike
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From - Thu Nov 08 21:06:03 2018
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From: "Michael Chan" <mchan@broadcom.com>
Newsgroups: gmane.linux.kernel,gmane.linux.network,gmane.linux.ports.parisc
Subject: Re: bnx2 fails to compile on parisc because of missing
 get_dma_ops()
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Mike Frysinger wrote:

> On Wed, Jun 16, 2010 at 9:13 PM, James Bottomley wrote:
> > I'm not quite sure whose fault this one is.
> >
> > However, this code in bnx2.c:
> >
> >                if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
> >                        next_rx_buf =
> >                                &rxr->rx_buf_ring[
> >                                        RX_RING_IDX(NEXT_RX_BD(sw_cons))];
> >                        prefetch(next_rx_buf->desc);
> >                }
> >
> > Looks remarkably fragile: what exactly is it trying to do?

If sync_single is not defined, that means the CPU has a consistent
view of next_rx_buf and so it makes sense to prefetch it.

> >
> > The commit that causes the problem:
> >
> > commit a33fa66bcf365ffe5b79d1ae1d3582cc261ae56e
> > Author: Michael Chan <mchan@broadcom.com>
> > Date:   Thu May 6 08:58:13 2010 +0000
> >
> >    bnx2: Add prefetches to rx path.
> >
> > Looks fairly innocuous by the description.
> >
> > Should parisc have a get_dma_ops()?  We don't need one
> because our dma
> > ops are per platform not per bus.
>
> looks like it'll be broken on more than just parisc:
> $ grep get_dma_ops arch/*/include/asm/ -rl | cut -d/ -f 2
> alpha
> ia64
> microblaze
> powerpc
> sh
> sparc
> x86

Most of these archs use the dma functions in:

<asm-genric/dma-mapping-common.h>

so it's not a problem.

I think I'll send in a patch to remove that part of the code
from bnx2.c for now.

Thanks.


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On Wed, Jun 16, 2010 at 11:53 PM, Michael Chan wrote:
> Mike Frysinger wrote:
>> > The commit that causes the problem:
>> >
>> > commit a33fa66bcf365ffe5b79d1ae1d3582cc261ae56e
>> > Author: Michael Chan <mchan@broadcom.com>
>> > Date: =A0 Thu May 6 08:58:13 2010 +0000
>> >
>> > =A0 =A0bnx2: Add prefetches to rx path.
>> >
>> > Looks fairly innocuous by the description.
>> >
>> > Should parisc have a get_dma_ops()? =A0We don't need one
>> because our dma
>> > ops are per platform not per bus.
>>
>> looks like it'll be broken on more than just parisc:
>> $ grep get_dma_ops arch/*/include/asm/ -rl | cut -d/ -f 2
>> alpha
>> ia64
>> microblaze
>> powerpc
>> sh
>> sparc
>> x86
>
> Most of these archs use the dma functions in:
>
> <asm-genric/dma-mapping-common.h>
>
> so it's not a problem.

the grep is showing only the arches that define get_dma_ops (and so
the new code works).  you'd have to invert the list to see the ones
which do not define get_dma_ops(), and the inverted list is larger.
that was merely my point.
-mike
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On Wed, Jun 16, 2010 at 08:53:57PM -0700, Michael Chan wrote:
> Mike Frysinger wrote:
> 
> > On Wed, Jun 16, 2010 at 9:13 PM, James Bottomley wrote:
> > > I'm not quite sure whose fault this one is.
> > >
> > > However, this code in bnx2.c:
> > >
> > >                if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
> > >                        next_rx_buf =
> > >                                &rxr->rx_buf_ring[
> > >                                        RX_RING_IDX(NEXT_RX_BD(sw_cons))];
> > >                        prefetch(next_rx_buf->desc);
> > >                }
> > >
> > > Looks remarkably fragile: what exactly is it trying to do?
> 
> If sync_single is not defined, that means the CPU has a consistent
> view of next_rx_buf and so it makes sense to prefetch it.
> 
Except that's not a valid assertion, there are platforms that implement
it for sanity checks yet still have consistent DMA. You are making
inherently non-portable assumptions for a PCI driver, which is a good
example of why drivers should never be side-stepping the API in the first
place. If you want to have a micro-optimization for the consistent DMA
case, you can check dma_is_consistent(), which is part of the API and
will be variable on certain platform configurations (ie, some may be
consistent with PCI but not on other busses, etc.) 

From - Thu Nov 08 21:06:04 2018
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Subject: Re: bnx2 fails to compile on parisc because of missing
 get_dma_ops()
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Paul Mundt wrote:

> On Wed, Jun 16, 2010 at 08:53:57PM -0700, Michael Chan wrote:
> > If sync_single is not defined, that means the CPU has a consistent
> > view of next_rx_buf and so it makes sense to prefetch it.
> >
> Except that's not a valid assertion, there are platforms that
> implement
> it for sanity checks yet still have consistent DMA. You are making
> inherently non-portable assumptions for a PCI driver, which is a good
> example of why drivers should never be side-stepping the API
> in the first
> place. If you want to have a micro-optimization for the consistent DMA
> case, you can check dma_is_consistent(), which is part of the API and
> will be variable on certain platform configurations (ie, some may be
> consistent with PCI but not on other busses, etc.)
>
>

Thanks for the tip.  I didn't know about the dma_is_consistent() API.
I'll use this to fix it then.

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On Wed, 2010-06-16 at 20:53 -0700, Michael Chan wrote:
> Mike Frysinger wrote:
> 
> > On Wed, Jun 16, 2010 at 9:13 PM, James Bottomley wrote:
> > > I'm not quite sure whose fault this one is.
> > >
> > > However, this code in bnx2.c:
> > >
> > >                if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
> > >                        next_rx_buf =
> > >                                &rxr->rx_buf_ring[
> > >                                        RX_RING_IDX(NEXT_RX_BD(sw_cons))];
> > >                        prefetch(next_rx_buf->desc);
> > >                }
> > >
> > > Looks remarkably fragile: what exactly is it trying to do?
> 
> If sync_single is not defined, that means the CPU has a consistent
> view of next_rx_buf and so it makes sense to prefetch it.

That's not entirely a correct statement.  Many architectures make a DMA
area coherent by turning off the CPU cache over it.  In that case,
prefetching makes absolutely no sense (although it usually works but is
a nop).

> > > The commit that causes the problem:
> > >
> > > commit a33fa66bcf365ffe5b79d1ae1d3582cc261ae56e
> > > Author: Michael Chan <mchan@broadcom.com>
> > > Date:   Thu May 6 08:58:13 2010 +0000
> > >
> > >    bnx2: Add prefetches to rx path.
> > >
> > > Looks fairly innocuous by the description.
> > >
> > > Should parisc have a get_dma_ops()?  We don't need one
> > because our dma
> > > ops are per platform not per bus.
> >
> > looks like it'll be broken on more than just parisc:
> > $ grep get_dma_ops arch/*/include/asm/ -rl | cut -d/ -f 2
> > alpha
> > ia64
> > microblaze
> > powerpc
> > sh
> > sparc
> > x86
> 
> Most of these archs use the dma functions in:
> 
> <asm-genric/dma-mapping-common.h>
> 
> so it's not a problem.

Parisc begs to differ.

Plus you're making assumptions about the contents of the ops structure
which is an internal architecture object ... that's bound to run into
portability problems even if we make it compile on all platform.

> I think I'll send in a patch to remove that part of the code
> from bnx2.c for now.

I think that's the best solution.

James


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Michael Chan wrote:
>
> Paul Mundt wrote:
>
> > If you want to have a micro-optimization for the consistent DMA
> > case, you can check dma_is_consistent(), which is part of the API and
> > will be variable on certain platform configurations (ie, some may be
> > consistent with PCI but not on other busses, etc.)
> >
> >
>
> Thanks for the tip.  I didn't know about the dma_is_consistent() API.
> I'll use this to fix it then.
>

David, why is dma_is_consistent() always returning 1 on sparc?  The
streaming DMA is not consistent.

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Subject: Re: bnx2 fails to compile on parisc because of missing
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On Wed, 16 Jun 2010 20:13:49 -0500
James Bottomley <JBottomley@Novell.com> wrote:

> I'm not quite sure whose fault this one is.
> 
> However, this code in bnx2.c:
> 
> 		if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
> 			next_rx_buf =
> 				&rxr->rx_buf_ring[
> 					RX_RING_IDX(NEXT_RX_BD(sw_cons))];
> 			prefetch(next_rx_buf->desc);
> 		}
> 
> Looks remarkably fragile: what exactly is it trying to do?
> 
> The commit that causes the problem:
> 
> commit a33fa66bcf365ffe5b79d1ae1d3582cc261ae56e
> Author: Michael Chan <mchan@broadcom.com>
> Date:   Thu May 6 08:58:13 2010 +0000
> 
>     bnx2: Add prefetches to rx path.
> 
> Looks fairly innocuous by the description.
> 
> Should parisc have a get_dma_ops()?  We don't need one because our dma
> ops are per platform not per bus.

Shouldn't. Only the architectures that use
include/dma-generic/dma-mapping.common.h need to have get_dma_ops().

Using include/dma-generic/dma-mapping.common.h for parisc is not a bad
idea though.

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On Wed, 16 Jun 2010 18:16:32 -0700 (PDT)
David Miller <davem@davemloft.net> wrote:

> From: James Bottomley <JBottomley@Novell.com>
> Date: Wed, 16 Jun 2010 20:13:49 -0500
> 
> > However, this code in bnx2.c:
> > 
> > 		if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
> > 			next_rx_buf =
> > 				&rxr->rx_buf_ring[
> > 					RX_RING_IDX(NEXT_RX_BD(sw_cons))];
> > 			prefetch(next_rx_buf->desc);
> > 		}
> > 
> > Looks remarkably fragile: what exactly is it trying to do?
> > 
> > The commit that causes the problem:
> > 
> > commit a33fa66bcf365ffe5b79d1ae1d3582cc261ae56e
> > Author: Michael Chan <mchan@broadcom.com>
> > Date:   Thu May 6 08:58:13 2010 +0000
> > 
> >     bnx2: Add prefetches to rx path.
> > 
> > Looks fairly innocuous by the description.
> > 
> > Should parisc have a get_dma_ops()?  We don't need one because our dma
> > ops are per platform not per bus.
> 
> I think asking for get_dma_ops() directly in a driver is dodgy at
> best, especially one that is meant to compile on any PCI supporting
> system.  At least right now.

Yeah, it should be used only in the architecture core
code. get_dma_ops() is not mentioned in DMA-API-* docs.
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On Wed, 16 Jun 2010 20:53:57 -0700
"Michael Chan" <mchan@broadcom.com> wrote:

> > > The commit that causes the problem:
> > >
> > > commit a33fa66bcf365ffe5b79d1ae1d3582cc261ae56e
> > > Author: Michael Chan <mchan@broadcom.com>
> > > Date:   Thu May 6 08:58:13 2010 +0000
> > >
> > >    bnx2: Add prefetches to rx path.
> > >
> > > Looks fairly innocuous by the description.
> > >
> > > Should parisc have a get_dma_ops()?  We don't need one
> > because our dma
> > > ops are per platform not per bus.
> >
> > looks like it'll be broken on more than just parisc:
> > $ grep get_dma_ops arch/*/include/asm/ -rl | cut -d/ -f 2
> > alpha
> > ia64
> > microblaze
> > powerpc
> > sh
> > sparc
> > x86
> 
> Most of these archs use the dma functions in:
> 
> <asm-genric/dma-mapping-common.h>
> 
> so it's not a problem.

No, it's wrong assumption. asm-genric/dma-mapping-common.h is the
helper code to simplify architecture's DMA core code. Some
architecture uses it and some don't.

You can't expect every architectures to use it.


> I think I'll send in a patch to remove that part of the code
> from bnx2.c for now.

Yeah. I'm not sure you already sent a patch.

=
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Thu, 17 Jun 2010 13:06:15 +0900
Subject: [PATCH] bnx2: fix dma_get_ops compilation breakage

This removes dma_get_ops() prefetch optimization in bnx2.

bnx2 uses dma_get_ops() to see if dma_sync_single_for_cpu() is
noop. bnx2 does prefetch if it's noop.

But dma_get_ops() isn't available on all the architectures (only the
architectures that uses dma_map_ops struct have it). Using
dma_get_ops() in drivers leads to compilation breakage on many
archtectures.

Currently, we don't have a way to see if dma_sync_single_for_cpu() is
noop. If it can improve the performance notably, we can add the new
DMA API for it.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 drivers/net/bnx2.c |   10 +---------
 1 files changed, 1 insertions(+), 9 deletions(-)

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 949d7a9..b3305fc 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -3073,7 +3073,6 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
 	u16 hw_cons, sw_cons, sw_ring_cons, sw_prod, sw_ring_prod;
 	struct l2_fhdr *rx_hdr;
 	int rx_pkt = 0, pg_ring_used = 0;
-	struct pci_dev *pdev = bp->pdev;
 
 	hw_cons = bnx2_get_hw_rx_cons(bnapi);
 	sw_cons = rxr->rx_cons;
@@ -3086,7 +3085,7 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
 	while (sw_cons != hw_cons) {
 		unsigned int len, hdr_len;
 		u32 status;
-		struct sw_bd *rx_buf, *next_rx_buf;
+		struct sw_bd *rx_buf;
 		struct sk_buff *skb;
 		dma_addr_t dma_addr;
 		u16 vtag = 0;
@@ -3098,13 +3097,6 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
 		rx_buf = &rxr->rx_buf_ring[sw_ring_cons];
 		skb = rx_buf->skb;
 		prefetchw(skb);
-
-		if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
-			next_rx_buf =
-				&rxr->rx_buf_ring[
-					RX_RING_IDX(NEXT_RX_BD(sw_cons))];
-			prefetch(next_rx_buf->desc);
-		}
 		rx_buf->skb = NULL;
 
 		dma_addr = dma_unmap_addr(rx_buf, mapping);
-- 
1.5.6.5


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On Wed, 16 Jun 2010 23:24:44 -0700
"Michael Chan" <mchan@broadcom.com> wrote:

> Michael Chan wrote:
> >
> > Paul Mundt wrote:
> >
> > > If you want to have a micro-optimization for the consistent DMA
> > > case, you can check dma_is_consistent(), which is part of the API and
> > > will be variable on certain platform configurations (ie, some may be
> > > consistent with PCI but not on other busses, etc.)
> > >
> > >
> >
> > Thanks for the tip.  I didn't know about the dma_is_consistent() API.
> > I'll use this to fix it then.
> >
> 
> David, why is dma_is_consistent() always returning 1 on sparc?  The
> streaming DMA is not consistent.

I think that there are some confusion about dma_is_consistent(). Some
architectures think that dma_is_consistent() is supposed to return 1
if they can allocate coherent memory (note that some architectures
can't allocate coherent memory).
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To: "'FUJITA Tomonori'" <fujita.tomonori@lab.ntt.co.jp>
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Thread-Topic: bnx2 fails to compile on parisc because of missing
 get_dma_ops()
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FUJITA Tomonori wrote:

> From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> Date: Thu, 17 Jun 2010 13:06:15 +0900
> Subject: [PATCH] bnx2: fix dma_get_ops compilation breakage
>
> This removes dma_get_ops() prefetch optimization in bnx2.
>
> bnx2 uses dma_get_ops() to see if dma_sync_single_for_cpu() is
> noop. bnx2 does prefetch if it's noop.
>
> But dma_get_ops() isn't available on all the architectures (only the
> architectures that uses dma_map_ops struct have it). Using
> dma_get_ops() in drivers leads to compilation breakage on many
> archtectures.
>
> Currently, we don't have a way to see if dma_sync_single_for_cpu() is
> noop. If it can improve the performance notably, we can add the new
> DMA API for it.

This prefetch improves performance noticeably when the driver is
handling incoming 64-byte packets at a sustained rate.

>
> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

Acked-by: Michael Chan <mchan@broadcom.com>

Thanks.

> ---
>  drivers/net/bnx2.c |   10 +---------
>  1 files changed, 1 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
> index 949d7a9..b3305fc 100644
> --- a/drivers/net/bnx2.c
> +++ b/drivers/net/bnx2.c
> @@ -3073,7 +3073,6 @@ bnx2_rx_int(struct bnx2 *bp, struct
> bnx2_napi *bnapi, int budget)
>       u16 hw_cons, sw_cons, sw_ring_cons, sw_prod, sw_ring_prod;
>       struct l2_fhdr *rx_hdr;
>       int rx_pkt = 0, pg_ring_used = 0;
> -     struct pci_dev *pdev = bp->pdev;
>
>       hw_cons = bnx2_get_hw_rx_cons(bnapi);
>       sw_cons = rxr->rx_cons;
> @@ -3086,7 +3085,7 @@ bnx2_rx_int(struct bnx2 *bp, struct
> bnx2_napi *bnapi, int budget)
>       while (sw_cons != hw_cons) {
>               unsigned int len, hdr_len;
>               u32 status;
> -             struct sw_bd *rx_buf, *next_rx_buf;
> +             struct sw_bd *rx_buf;
>               struct sk_buff *skb;
>               dma_addr_t dma_addr;
>               u16 vtag = 0;
> @@ -3098,13 +3097,6 @@ bnx2_rx_int(struct bnx2 *bp, struct
> bnx2_napi *bnapi, int budget)
>               rx_buf = &rxr->rx_buf_ring[sw_ring_cons];
>               skb = rx_buf->skb;
>               prefetchw(skb);
> -
> -             if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
> -                     next_rx_buf =
> -                             &rxr->rx_buf_ring[
> -
> RX_RING_IDX(NEXT_RX_BD(sw_cons))];
> -                     prefetch(next_rx_buf->desc);
> -             }
>               rx_buf->skb = NULL;
>
>               dma_addr = dma_unmap_addr(rx_buf, mapping);
> --
> 1.5.6.5
>
>
>

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From - Thu Nov 08 21:06:04 2018
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Subject: Re: bnx2 fails to compile on parisc because of missing
 get_dma_ops()
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On Thu, 2010-06-17 at 05:54 -0700, Michael Chan wrote:
> FUJITA Tomonori wrote:
> 
> > From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> > Date: Thu, 17 Jun 2010 13:06:15 +0900
> > Subject: [PATCH] bnx2: fix dma_get_ops compilation breakage
> >
> > This removes dma_get_ops() prefetch optimization in bnx2.
> >
> > bnx2 uses dma_get_ops() to see if dma_sync_single_for_cpu() is
> > noop. bnx2 does prefetch if it's noop.
> >
> > But dma_get_ops() isn't available on all the architectures (only the
> > architectures that uses dma_map_ops struct have it). Using
> > dma_get_ops() in drivers leads to compilation breakage on many
> > archtectures.
> >
> > Currently, we don't have a way to see if dma_sync_single_for_cpu() is
> > noop. If it can improve the performance notably, we can add the new
> > DMA API for it.
> 
> This prefetch improves performance noticeably when the driver is
> handling incoming 64-byte packets at a sustained rate.

So why not do it unconditionally?  The worst that can happen is that you
pull in a stale cache line which will get cleaned in the dma_sync, thus
slightly degrading performance on incoherent architectures.

Alternatively, come up with a dma prefetch infrastructure ... all you're
really doing is hinting to the architecture that you'll sync this region
next.

James


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From - Thu Nov 08 21:06:04 2018
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James Bottomley wrote:

> On Thu, 2010-06-17 at 05:54 -0700, Michael Chan wrote:
> > This prefetch improves performance noticeably when the driver is
> > handling incoming 64-byte packets at a sustained rate.
>
> So why not do it unconditionally?  The worst that can happen
> is that you
> pull in a stale cache line which will get cleaned in the
> dma_sync, thus
> slightly degrading performance on incoherent architectures.

The original patch was an unconditional prefetch.  There was
some discussion that it might not be correct if the DMA wasn't
sync'ed yet on some archs.  If the concensus is that it is ok to
do so, that would be the simplest solution.

>
> Alternatively, come up with a dma prefetch infrastructure ...
> all you're
> really doing is hinting to the architecture that you'll sync
> this region
> next.
>
> James
>
>
>
>

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From - Thu Nov 08 21:06:04 2018
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On Thu, 2010-06-17 at 06:30 -0700, Michael Chan wrote: 
> James Bottomley wrote:
> 
> > On Thu, 2010-06-17 at 05:54 -0700, Michael Chan wrote:
> > > This prefetch improves performance noticeably when the driver is
> > > handling incoming 64-byte packets at a sustained rate.
> >
> > So why not do it unconditionally?  The worst that can happen
> > is that you
> > pull in a stale cache line which will get cleaned in the
> > dma_sync, thus
> > slightly degrading performance on incoherent architectures.
> 
> The original patch was an unconditional prefetch.  There was
> some discussion that it might not be correct if the DMA wasn't
> sync'ed yet on some archs.  If the concensus is that it is ok to
> do so, that would be the simplest solution.

It's definitely not "correct" in that it may pull in stale data.  But it
should be harmless in that if it does, the subsequent sync will destroy
the cache line (even if it actually pulled in correct data) and prevent
the actual use of the prefetched data being wrong (or indeed being
prefetched at all).

James




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On Thu, 17 Jun 2010 06:30:39 -0700
"Michael Chan" <mchan@broadcom.com> wrote:

> James Bottomley wrote:
> 
> > On Thu, 2010-06-17 at 05:54 -0700, Michael Chan wrote:
> > > This prefetch improves performance noticeably when the driver is
> > > handling incoming 64-byte packets at a sustained rate.
> >
> > So why not do it unconditionally?  The worst that can happen
> > is that you
> > pull in a stale cache line which will get cleaned in the
> > dma_sync, thus
> > slightly degrading performance on incoherent architectures.
> 
> The original patch was an unconditional prefetch.  There was
> some discussion that it might not be correct if the DMA wasn't
> sync'ed yet on some archs.  If the concensus is that it is ok to
> do so, that would be the simplest solution.

As James said, it just adds useless prefetch on incoherent
architectures. sync_single_for_cpu is called later so we can see the
correct data. One useless prefetch is unlikely to lead performance
drop.

You might prefer this v2.

=
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Subject: [PATCH v2] bnx2: fix dma_get_ops compilation breakage

This removes dma_get_ops() prefetch optimization in bnx2.

bnx2 uses dma_get_ops() to see if dma_sync_single_for_cpu() is
noop. bnx2 does prefetch if it's noop.

But dma_get_ops() isn't available on all the architectures (only the
architectures that uses dma_map_ops struct have it). Using
dma_get_ops() in drivers leads to compilation breakage on many
archtectures.

This patch removes dma_get_ops() and changes bnx2 to do prefetch on
all the architectures. This adds useless prefetch on incoherent
architectures but this is harmless. It is also unlikely to cause the
performance drop.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 drivers/net/bnx2.c |   10 ++++------
 1 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 949d7a9..85f1692 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -3099,12 +3099,10 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
 		skb = rx_buf->skb;
 		prefetchw(skb);
 
-		if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
-			next_rx_buf =
-				&rxr->rx_buf_ring[
-					RX_RING_IDX(NEXT_RX_BD(sw_cons))];
-			prefetch(next_rx_buf->desc);
-		}
+		next_rx_buf =
+			&rxr->rx_buf_ring[RX_RING_IDX(NEXT_RX_BD(sw_cons))];
+		prefetch(next_rx_buf->desc);
+
 		rx_buf->skb = NULL;
 
 		dma_addr = dma_unmap_addr(rx_buf, mapping);
-- 
1.6.5

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel
Subject: Re: bnx2 fails to compile on parisc because of missing
 get_dma_ops()
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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Thu, 17 Jun 2010 21:21:13 +0900

> On Wed, 16 Jun 2010 23:24:44 -0700
> "Michael Chan" <mchan@broadcom.com> wrote:
> 
>> David, why is dma_is_consistent() always returning 1 on sparc?  The
>> streaming DMA is not consistent.
> 
> I think that there are some confusion about dma_is_consistent(). Some
> architectures think that dma_is_consistent() is supposed to return 1
> if they can allocate coherent memory (note that some architectures
> can't allocate coherent memory).

Right, and that's why it's defined this way.

If the desired meaning is different, just me know and I'll fix the
sparc definition.

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Subject: Re: bnx2 fails to compile on parisc because of missing
 get_dma_ops()
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 get_dma_ops()
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FUJITA Tomonori wrote:

> On Thu, 17 Jun 2010 06:30:39 -0700
> "Michael Chan" <mchan@broadcom.com> wrote:
>
> > James Bottomley wrote:
> >
> > > On Thu, 2010-06-17 at 05:54 -0700, Michael Chan wrote:
> > > > This prefetch improves performance noticeably when the driver is
> > > > handling incoming 64-byte packets at a sustained rate.
> > >
> > > So why not do it unconditionally?  The worst that can happen
> > > is that you
> > > pull in a stale cache line which will get cleaned in the
> > > dma_sync, thus
> > > slightly degrading performance on incoherent architectures.
> >
> > The original patch was an unconditional prefetch.  There was
> > some discussion that it might not be correct if the DMA wasn't
> > sync'ed yet on some archs.  If the concensus is that it is ok to
> > do so, that would be the simplest solution.
>
> As James said, it just adds useless prefetch on incoherent
> architectures. sync_single_for_cpu is called later so we can see the
> correct data. One useless prefetch is unlikely to lead performance
> drop.
>
> You might prefer this v2.

Yes, thanks.
Acked-by: Michael Chan <mchan@broadcom.com>

>
> =
> From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> Subject: [PATCH v2] bnx2: fix dma_get_ops compilation breakage
>
> This removes dma_get_ops() prefetch optimization in bnx2.
>
> bnx2 uses dma_get_ops() to see if dma_sync_single_for_cpu() is
> noop. bnx2 does prefetch if it's noop.
>
> But dma_get_ops() isn't available on all the architectures (only the
> architectures that uses dma_map_ops struct have it). Using
> dma_get_ops() in drivers leads to compilation breakage on many
> archtectures.
>
> This patch removes dma_get_ops() and changes bnx2 to do prefetch on
> all the architectures. This adds useless prefetch on incoherent
> architectures but this is harmless. It is also unlikely to cause the
> performance drop.
>
> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> ---
>  drivers/net/bnx2.c |   10 ++++------
>  1 files changed, 4 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
> index 949d7a9..85f1692 100644
> --- a/drivers/net/bnx2.c
> +++ b/drivers/net/bnx2.c
> @@ -3099,12 +3099,10 @@ bnx2_rx_int(struct bnx2 *bp, struct
> bnx2_napi *bnapi, int budget)
>               skb = rx_buf->skb;
>               prefetchw(skb);
>
> -             if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
> -                     next_rx_buf =
> -                             &rxr->rx_buf_ring[
> -
> RX_RING_IDX(NEXT_RX_BD(sw_cons))];
> -                     prefetch(next_rx_buf->desc);
> -             }
> +             next_rx_buf =
> +
> &rxr->rx_buf_ring[RX_RING_IDX(NEXT_RX_BD(sw_cons))];
> +             prefetch(next_rx_buf->desc);
> +
>               rx_buf->skb = NULL;
>
>               dma_addr = dma_unmap_addr(rx_buf, mapping);
> --
> 1.6.5
>
>
>

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel
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 get_dma_ops()
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On Thu, 17 Jun 2010 07:36:53 -0700 (PDT)
David Miller <davem@davemloft.net> wrote:

> From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> Date: Thu, 17 Jun 2010 21:21:13 +0900
> 
> > On Wed, 16 Jun 2010 23:24:44 -0700
> > "Michael Chan" <mchan@broadcom.com> wrote:
> > 
> >> David, why is dma_is_consistent() always returning 1 on sparc?  The
> >> streaming DMA is not consistent.
> > 
> > I think that there are some confusion about dma_is_consistent(). Some
> > architectures think that dma_is_consistent() is supposed to return 1
> > if they can allocate coherent memory (note that some architectures
> > can't allocate coherent memory).
> 
> Right, and that's why it's defined this way.
> 
> If the desired meaning is different, just me know and I'll fix the
> sparc definition.

I think that there are some other architectures do the same. We need
to make sure that all the architectures define dma_is_consistent() in
the same meaning if drivers need it. However, I'm not sure we really
need dma_is_consistent(). There is only one user of it (and I think we
could remove it).

In the bnx2 case, we can simply prefetch on all the archs (or just
remove the optimization).
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Newsgroups: gmane.linux.kernel,gmane.linux.network,gmane.linux.ports.parisc
Subject: Re: bnx2 fails to compile on parisc because of missing
 get_dma_ops()
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Oops, some typos.

On Thu, 17 Jun 2010 23:05:59 +0900
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> wrote:

> On Thu, 17 Jun 2010 06:30:39 -0700
> "Michael Chan" <mchan@broadcom.com> wrote:
> 
> > James Bottomley wrote:
> > 
> > > On Thu, 2010-06-17 at 05:54 -0700, Michael Chan wrote:
> > > > This prefetch improves performance noticeably when the driver is
> > > > handling incoming 64-byte packets at a sustained rate.
> > >
> > > So why not do it unconditionally?  The worst that can happen
> > > is that you
> > > pull in a stale cache line which will get cleaned in the
> > > dma_sync, thus
> > > slightly degrading performance on incoherent architectures.
> > 
> > The original patch was an unconditional prefetch.  There was
> > some discussion that it might not be correct if the DMA wasn't
> > sync'ed yet on some archs.  If the concensus is that it is ok to
> > do so, that would be the simplest solution.
> 
> As James said, it just adds useless prefetch on incoherent
> architectures. sync_single_for_cpu is called later so we can see the
> correct data. One useless prefetch is unlikely to lead performance
> drop.
> 
> You might prefer this v2.
> 
> =
> From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> Subject: [PATCH v2] bnx2: fix dma_get_ops compilation breakage
> 
> This removes dma_get_ops() prefetch optimization in bnx2.
> 
> bnx2 uses dma_get_ops() to see if dma_sync_single_for_cpu() is
> noop. bnx2 does prefetch if it's noop.
> 
> But dma_get_ops() isn't available on all the architectures (only the
> architectures that uses dma_map_ops struct have it). Using
> dma_get_ops() in drivers leads to compilation breakage on many
> archtectures.

s/archtectures/architectures/

> This patch removes dma_get_ops() and changes bnx2 to do prefetch on
> all the architectures. This adds useless prefetch on incoherent
                                                       ~~~~~~~~~~
                                             s/incoherent/non-coherent/
(thanks to Alan)

> architectures but this is harmless. It is also unlikely to cause the
> performance drop.

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On Thu, Jun 17, 2010 at 11:50:35PM +0900, FUJITA Tomonori wrote:
> On Thu, 17 Jun 2010 07:36:53 -0700 (PDT)
> David Miller <davem@davemloft.net> wrote:
> 
> > From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> > Date: Thu, 17 Jun 2010 21:21:13 +0900
> > 
> > > On Wed, 16 Jun 2010 23:24:44 -0700
> > > "Michael Chan" <mchan@broadcom.com> wrote:
> > > 
> > >> David, why is dma_is_consistent() always returning 1 on sparc?  The
> > >> streaming DMA is not consistent.
> > > 
> > > I think that there are some confusion about dma_is_consistent(). Some
> > > architectures think that dma_is_consistent() is supposed to return 1
> > > if they can allocate coherent memory (note that some architectures
> > > can't allocate coherent memory).
> > 
> > Right, and that's why it's defined this way.
> > 
> > If the desired meaning is different, just me know and I'll fix the
> > sparc definition.
> 
> I think that there are some other architectures do the same. We need
> to make sure that all the architectures define dma_is_consistent() in
> the same meaning if drivers need it. However, I'm not sure we really
> need dma_is_consistent(). There is only one user of it (and I think we
> could remove it).
> 
> In the bnx2 case, we can simply prefetch on all the archs (or just
> remove the optimization).

I think its worthwhile keeping, especially since the consistency can vary
on a per struct device level. If there's a benefit with these sorts of
prefetch micro-optimizations in drivers when it doesn't cost us that much
to provide the hint, I don't really see the harm. If dma_is_consistent()
is suddenly supposed to take on other meanings, or it's supposed to mean
something entirely different, then this is something we should deal with
separately.

I don't see any harm in letting drivers know whether we can support
consistent DMA allocs for a given struct device or not though, even if
the micro-optimization is marginal at best.

At least I've conditionalized the definition on SH, and it seems other
archictures have done so too. It's not clear what we'd gain from throwing
that away as long as they're generally in agreement on what it means.
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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Thu, 17 Jun 2010 23:50:36 +0900

> Oops, some typos.

I've applied the patch with the typos fixed, thanks!

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On Wed, Jun 16, 2010 at 11:40 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> True ... but I didn't say that it was valid C. =A0I said the compiler=
 is
> spitting them out in the assembly ... I suspect it uses invalid C
> function characters precisely to avoid clashes.

Then we need to add all such chars to that regexp.

> The problem is that it's hard to get the linker to distinguish
> between .text.. and .text. without funny regexp contortions. =A0Howev=
er,
> if the two sections began .text- and .text. they are easy to distingu=
ish
> because one prefix isn't a subset of the other.
>
>> Both .page_aligned.data and .data-page_aligned are valid choices (an=
d in
>> fact, the first patch series I sent on this topic about 18 months ag=
o did
>> .page_aligned.data, I think).
>>
>> The main technical difference between ".data..page_aligned" and
>> ".page_aligned.data" in my view is that you need to be more careful =
when
>> writing assembly files with ".page_aligned.data".
>>
>> To give an example, if I run the following:
>>
>> $ cat > foo.s
>> .section .data-page-aligned
>> =A0 =A0 =A0 .long 0
>> .section .data.page_aligned
>> =A0 =A0 =A0 .long 1
>> $ gcc -c foo.s -o foo.o
>> $ objdump -h foo.o
>> foo.o: =A0 =A0 file format elf32-i386
>>
>> Sections:
>> Idx Name =A0 =A0 =A0 =A0 =A0Size =A0 =A0 =A0VMA =A0 =A0 =A0 LMA =A0 =
=A0 =A0 File off =A0Algn
>> =A0 0 .text =A0 =A0 =A0 =A0 00000000 =A000000000 =A000000000 =A00000=
0034 =A02**2
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 CONTENTS, ALLOC, LOAD, READONLY,=
 CODE
>> =A0 1 .data =A0 =A0 =A0 =A0 00000000 =A000000000 =A000000000 =A00000=
0034 =A02**2
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 CONTENTS, ALLOC, LOAD, DATA
>> =A0 2 .bss =A0 =A0 =A0 =A0 =A000000000 =A000000000 =A000000000 =A000=
000034 =A02**2
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ALLOC
>> =A0 3 .data-page-aligned 00000004 =A000000000 =A000000000 =A00000003=
4 =A02**0
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 CONTENTS, READONLY
>> =A0 4 .data.page_aligned 00000004 =A000000000 =A000000000 =A00000003=
8 =A02**0
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 CONTENTS, ALLOC, LOAD, DATA
>>
>> one can see that the .data-page-aligned section doesn't have the rig=
ht
>> section flags. =A0So I'm pretty sure the relevant assembler heuristi=
c is
>> looking for things starting with ".data.", not just ".data".
>>
>> The kernel has a lot of code in assembly files that just does:
>>
>> .section ".data"
>>
>> and so there's a very real risk that folks who are doing pattern-mat=
ching
>> development on assembly files will end up creating non-allocated sec=
tions
>> by accident (I've certainly made this mistake myself, and there's a =
bug of
>> this form in arch/x86/lib/thunk.S until commit
>> c6c2d7a084d14a8a701be84872aa1b77d2945f46, so I don't think I'm alone=
)
>
> But that commit isn't anything to do with the section not being
> allocated. =A0That's actually irrelevant to us, since we sort out the
> sectional allocations out at link time with the linker script (which
> ends up completely ignoring the original file flags). =A0The problem,
> specifically, is that the linker does a rename of two identically nam=
ed
> sections with different flags ... we would also get the same behaviou=
r
> if the linker thought two sections weren't mergeable even if they did
> have identical flags.
>
> In general, I think it's good practise for all use of sections to
> specify the elf flags.

This is doable in asm, yes. For .bss, we need to not forget about
@nobits too: section .bss.foo,"aw",@nobits

> Actually, as I said, that would be .data-
>
> But, to be honest, I don't care that much about the data names becaus=
e
> we don't use -fdata-sections, the only objection is that having two
> separate conventions for text and data is adding needless complexity =
=2E..
> I do care about the text names, and I'd rather we stuck to the existi=
ng
> convention there, or provided a good reason for the change ... and
> wanting .text. as a prefix for everything is weak at best.
>
> The specific objection I have to converting everything to the .text..=
*
> prefix for linux sections is that the gather all function sections ca=
n
> no longer be *(.text.*), but has to become a regular expression, whic=
h
> is adding fragility.

I agree that it's not pretty, but otherwise we add fragility in other p=
laces:
every section directive must be correct now. These places are more nume=
rous
than linker scripts.

But, leaving aside the question whether we want to take the risk
of people forgetting to do it properly everywhere, -
is it even *possible* to specify these attributes in C - that is,
in gcc's __attribute__((section(".bss.foo")))?

I think currently gcc does not support it - it guesses attributes
based on the section name.

--=20
vda

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On Thu, 2010-06-17 at 21:11 +0200, Denys Vlasenko wrote:
> On Wed, Jun 16, 2010 at 11:40 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> > True ... but I didn't say that it was valid C.  I said the compiler is
> > spitting them out in the assembly ... I suspect it uses invalid C
> > function characters precisely to avoid clashes.
> 
> Then we need to add all such chars to that regexp.

Thus proving the point about fragility ...

> > The problem is that it's hard to get the linker to distinguish
> > between .text.. and .text. without funny regexp contortions.  However,
> > if the two sections began .text- and .text. they are easy to distinguish
> > because one prefix isn't a subset of the other.
> >
> >> Both .page_aligned.data and .data-page_aligned are valid choices (and in
> >> fact, the first patch series I sent on this topic about 18 months ago did
> >> .page_aligned.data, I think).
> >>
> >> The main technical difference between ".data..page_aligned" and
> >> ".page_aligned.data" in my view is that you need to be more careful when
> >> writing assembly files with ".page_aligned.data".
> >>
> >> To give an example, if I run the following:
> >>
> >> $ cat > foo.s
> >> .section .data-page-aligned
> >>       .long 0
> >> .section .data.page_aligned
> >>       .long 1
> >> $ gcc -c foo.s -o foo.o
> >> $ objdump -h foo.o
> >> foo.o:     file format elf32-i386
> >>
> >> Sections:
> >> Idx Name          Size      VMA       LMA       File off  Algn
> >>   0 .text         00000000  00000000  00000000  00000034  2**2
> >>                   CONTENTS, ALLOC, LOAD, READONLY, CODE
> >>   1 .data         00000000  00000000  00000000  00000034  2**2
> >>                   CONTENTS, ALLOC, LOAD, DATA
> >>   2 .bss          00000000  00000000  00000000  00000034  2**2
> >>                   ALLOC
> >>   3 .data-page-aligned 00000004  00000000  00000000  00000034  2**0
> >>                   CONTENTS, READONLY
> >>   4 .data.page_aligned 00000004  00000000  00000000  00000038  2**0
> >>                   CONTENTS, ALLOC, LOAD, DATA
> >>
> >> one can see that the .data-page-aligned section doesn't have the right
> >> section flags.  So I'm pretty sure the relevant assembler heuristic is
> >> looking for things starting with ".data.", not just ".data".
> >>
> >> The kernel has a lot of code in assembly files that just does:
> >>
> >> .section ".data"
> >>
> >> and so there's a very real risk that folks who are doing pattern-matching
> >> development on assembly files will end up creating non-allocated sections
> >> by accident (I've certainly made this mistake myself, and there's a bug of
> >> this form in arch/x86/lib/thunk.S until commit
> >> c6c2d7a084d14a8a701be84872aa1b77d2945f46, so I don't think I'm alone)
> >
> > But that commit isn't anything to do with the section not being
> > allocated.  That's actually irrelevant to us, since we sort out the
> > sectional allocations out at link time with the linker script (which
> > ends up completely ignoring the original file flags).  The problem,
> > specifically, is that the linker does a rename of two identically named
> > sections with different flags ... we would also get the same behaviour
> > if the linker thought two sections weren't mergeable even if they did
> > have identical flags.
> >
> > In general, I think it's good practise for all use of sections to
> > specify the elf flags.
> 
> This is doable in asm, yes. For .bss, we need to not forget about
> @nobits too: section .bss.foo,"aw",@nobits

That's only for bss ... we have about a handful of such statements and
they always use the assembler .bss directive (which doesn't need flags).

> > Actually, as I said, that would be .data-
> >
> > But, to be honest, I don't care that much about the data names because
> > we don't use -fdata-sections, the only objection is that having two
> > separate conventions for text and data is adding needless complexity ...
> > I do care about the text names, and I'd rather we stuck to the existing
> > convention there, or provided a good reason for the change ... and
> > wanting .text. as a prefix for everything is weak at best.
> >
> > The specific objection I have to converting everything to the .text..*
> > prefix for linux sections is that the gather all function sections can
> > no longer be *(.text.*), but has to become a regular expression, which
> > is adding fragility.
> 
> I agree that it's not pretty, but otherwise we add fragility in other places:
> every section directive must be correct now. These places are more numerous
> than linker scripts.

I thought I just refuted that in the above: we don't care what the
assembler sections are flagged as because the linker script gets to pick
the flags anyway ... so most bugs arrived at this way have no visible
side effects ... and section merging problems have to be accounted for
anyway in the final linker scripts.

James

> But, leaving aside the question whether we want to take the risk
> of people forgetting to do it properly everywhere, -
> is it even *possible* to specify these attributes in C - that is,
> in gcc's __attribute__((section(".bss.foo")))?
> 
> I think currently gcc does not support it - it guesses attributes
> based on the section name.



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>> This is doable in asm, yes. For .bss, we need to not forget about
>> @nobits too: section .bss.foo,"aw",@nobits
>
> That's only for bss ... we have about a handful of such statements and
> they always use the assembler .bss directive (which doesn't need flags).
>
>> > Actually, as I said, that would be .data-

You are right, in assembly we can specify needed attributes.

I am more concerned about C:

arch/x86/include/asm/cache.h:
#define __read_mostly __attribute__((__section__(".data..read_mostly")))

If we change it to

#define __read_mostly __attribute__((__section__(".data-read_mostly")))

What makes this section have correct attributes?

With current gcc, __attribute__((__section__(".bss-page_aligned")))
does get wrong attributes. That's why we settled on .bss..foo
scheme.

> I thought I just refuted that in the above: we don't care what the
> assembler sections are flagged as because the linker script gets to pick
> the flags anyway ... so most bugs arrived at this way have no visible
> side effects ... and section merging problems have to be accounted for
> anyway in the final linker scripts.

When I was working on a older iteration of this patch,
I renamed .bss.page_aligned to .page_aligned.bss
and was bitten by linker bug: linker tried to merge
the sections and corrupted them.

Aha, here is it:
http://sourceware.org/bugzilla/show_bug.cgi?id=5006

It was since fixed, and if I read the ld patch correctly,
now ld emits a warning and switches entire target section
to PROGBITS - not what we want to happen to bss.

-- 
vda
--
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On Thu, 2010-06-17 at 22:19 +0200, Denys Vlasenko wrote:
> >> This is doable in asm, yes. For .bss, we need to not forget about
> >> @nobits too: section .bss.foo,"aw",@nobits
> >
> > That's only for bss ... we have about a handful of such statements and
> > they always use the assembler .bss directive (which doesn't need flags).
> >
> >> > Actually, as I said, that would be .data-
> 
> You are right, in assembly we can specify needed attributes.
> 
> I am more concerned about C:
> 
> arch/x86/include/asm/cache.h:
> #define __read_mostly __attribute__((__section__(".data..read_mostly")))
> 
> If we change it to
> 
> #define __read_mostly __attribute__((__section__(".data-read_mostly")))
> 
> What makes this section have correct attributes?

The fact that we specify it correctly in the sectional gather in the
linker scripts.  i.e. we should have a (NOLOAD) type for the
gathered .bss section ... although currently we don't.

The point (for the third time) is that if our linker scripts specify the
sections and attributes absolutely (and correctly) it doesn't matter
what random attributes the .o files pick up.  It's only if we miss a
specifier that the linker tries to work it out from the input sections.

That's how we make postfix or any other type of "nonstandard" section
name work.

James



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Part of this arguing with ksplice about their plan for
-ffunction-sections and -fdata-sections got me thinking about how we do
modules.  Right at the moment we have one section for every function in
a module, which leads to a massive amount of relocation overhead in the
in-kernel module loader.  Plus for some modules (ipv6, I believe), we
lack the relative jumps to get out of the function because we only put
the stubs after all the text sections.

The way to fix all of this, I think, is to make the real linker do more
work.  It should be beneficial to us because the linker *should* be able
to rearrange the sections to get the maximum number of jumps satisfiable
relatively.

I've tested that this works on pa8800 systems, but I'd really like
someone to try a failing module on a 32 bit platform (since 64 bits has
22 bit relative jumps, all the modules actually work).  You can see some
of the savings in the scsi_mod.ko

Before: 325 sections, 6366 relocation symbols
After: 23 sections, 5244 relocation symbols

James

---

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 55cca1d..ab88f11 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -21,6 +21,7 @@ KBUILD_DEFCONFIG := default_defconfig
 
 NM		= sh $(srctree)/arch/parisc/nm
 CHECKFLAGS	+= -D__hppa__=1
+LDFLAGS_MODULE	+= -T $(srctree)/arch/parisc/kernel/module.lds
 
 MACHINE		:= $(shell uname -m)
 ifeq ($(MACHINE),parisc*)
diff --git a/arch/parisc/kernel/module.lds b/arch/parisc/kernel/module.lds
new file mode 100644
index 0000000..42ee3eb
--- /dev/null
+++ b/arch/parisc/kernel/module.lds
@@ -0,0 +1,6 @@
+SECTIONS {
+	.text : {
+		/* Gather all function sections */
+		*(.text.*)
+	}
+}


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On 06/18/2010 05:03 PM, James Bottomley wrote:
> Part of this arguing with ksplice about their plan for
> -ffunction-sections and -fdata-sections got me thinking about how we do
> modules.  Right at the moment we have one section for every function in
> a module, which leads to a massive amount of relocation overhead in the
> in-kernel module loader.  Plus for some modules (ipv6, I believe), we
> lack the relative jumps to get out of the function because we only put
> the stubs after all the text sections.
> 
> The way to fix all of this, I think, is to make the real linker do more
> work.  It should be beneficial to us because the linker *should* be able
> to rearrange the sections to get the maximum number of jumps satisfiable
> relatively.
> 
> I've tested that this works on pa8800 systems, but I'd really like
> someone to try a failing module on a 32 bit platform (since 64 bits has
> 22 bit relative jumps, all the modules actually work).

Hi James,

I think there is no failing module on 32bit right now.
The biggest modules were ipv6.ko and xfs.ko, which do work now
since the latest module changes.

But if your patch saves relocations it's a win nevertheless.
I can't test your patch right now, but will try tomorrow evening....

Helge

> You can see some
> of the savings in the scsi_mod.ko
> 
> Before: 325 sections, 6366 relocation symbols
> After: 23 sections, 5244 relocation symbols
> 
> James
> 
> ---
> 
> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
> index 55cca1d..ab88f11 100644
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
> @@ -21,6 +21,7 @@ KBUILD_DEFCONFIG := default_defconfig
>  
>  NM		= sh $(srctree)/arch/parisc/nm
>  CHECKFLAGS	+= -D__hppa__=1
> +LDFLAGS_MODULE	+= -T $(srctree)/arch/parisc/kernel/module.lds
>  
>  MACHINE		:= $(shell uname -m)
>  ifeq ($(MACHINE),parisc*)
> diff --git a/arch/parisc/kernel/module.lds b/arch/parisc/kernel/module.lds
> new file mode 100644
> index 0000000..42ee3eb
> --- /dev/null
> +++ b/arch/parisc/kernel/module.lds
> @@ -0,0 +1,6 @@
> +SECTIONS {
> +	.text : {
> +		/* Gather all function sections */
> +		*(.text.*)
> +	}
> +}
--
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From - Thu Nov 08 21:06:06 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [RFC] fix the relative jump problem on large modules
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On 06/18/2010 10:40 PM, Helge Deller wrote:
> On 06/18/2010 05:03 PM, James Bottomley wrote:
>> Part of this arguing with ksplice about their plan for
>> -ffunction-sections and -fdata-sections got me thinking about how we do
>> modules.  Right at the moment we have one section for every function in
>> a module, which leads to a massive amount of relocation overhead in the
>> in-kernel module loader.  Plus for some modules (ipv6, I believe), we
>> lack the relative jumps to get out of the function because we only put
>> the stubs after all the text sections.
>>
>> The way to fix all of this, I think, is to make the real linker do more
>> work.  It should be beneficial to us because the linker *should* be able
>> to rearrange the sections to get the maximum number of jumps satisfiable
>> relatively.
>>
>> I've tested that this works on pa8800 systems, but I'd really like
>> someone to try a failing module on a 32 bit platform (since 64 bits has
>> 22 bit relative jumps, all the modules actually work).
> 
> Hi James,
> 
> I think there is no failing module on 32bit right now.
> The biggest modules were ipv6.ko and xfs.ko, which do work now
> since the latest module changes.
> 
> But if your patch saves relocations it's a win nevertheless.
> I can't test your patch right now, but will try tomorrow evening....

Hi James,

I just tested your patch on a 32bit kernel.

The wins wrt module size is good:
ipv6.ko:	415K -> 357K
xfs.ko:		902K -> 747K
(btw, what is the command you ran to count the sections and relocs?).

But your patch doesn't work on 32bit.
root@c3000:~# modprobe xfs
FATAL: Error inserting xfs (/lib/modules/2.6.35-rc3-32bit+/kernel/fs/xfs/xfs.ko): Invalid module format

dmesg says:
module xfs relocation of symbol memcpy is out of range (0x3ffeffaa in 17 bits)

That's exactly the problem, and this reminded me on what my latest patch to
the linux kernel module loader on hppa did.

Just look at the weak function arch_mod_section_prepend() in arch/parisc/kernel/module.c,
and at the top of that file:

 *    Notes:
 *    - PLT stub handling
 *      On 32bit (and sometimes 64bit) and with big kernel modules like xfs or
 *      ipv6 the relocation types R_PARISC_PCREL17F and R_PARISC_PCREL22F may
 *      fail to reach their PLT stub if we only create one big stub array for
 *      all sections at the beginning of the core or init section.
 *      Instead we now insert individual PLT stub entries directly in front of
 *      of the code sections where the stubs are actually called.
 *      This reduces the distance between the PCREL location and the stub entry
 *      so that the relocations can be fulfilled.
 *      While calculating the final layout of the kernel module in memory, the
 *      kernel module loader calls arch_mod_section_prepend() to request the
 *      to be reserved amount of memory in front of each individual section.

So, your patch merges all text sections, which then let the new kernel
module loader fail on 32bit since it's only one big section with too long distances...

Helge


>> You can see some
>> of the savings in the scsi_mod.ko
>>
>> Before: 325 sections, 6366 relocation symbols
>> After: 23 sections, 5244 relocation symbols
>>
>> James
>>
>> ---
>>
>> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
>> index 55cca1d..ab88f11 100644
>> --- a/arch/parisc/Makefile
>> +++ b/arch/parisc/Makefile
>> @@ -21,6 +21,7 @@ KBUILD_DEFCONFIG := default_defconfig
>>  
>>  NM		= sh $(srctree)/arch/parisc/nm
>>  CHECKFLAGS	+= -D__hppa__=1
>> +LDFLAGS_MODULE	+= -T $(srctree)/arch/parisc/kernel/module.lds
>>  
>>  MACHINE		:= $(shell uname -m)
>>  ifeq ($(MACHINE),parisc*)
>> diff --git a/arch/parisc/kernel/module.lds b/arch/parisc/kernel/module.lds
>> new file mode 100644
>> index 0000000..42ee3eb
>> --- /dev/null
>> +++ b/arch/parisc/kernel/module.lds
>> @@ -0,0 +1,6 @@
>> +SECTIONS {
>> +	.text : {
>> +		/* Gather all function sections */
>> +		*(.text.*)
>> +	}
>> +}
--
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From - Thu Nov 08 21:06:06 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [RFC] fix the relative jump problem on large modules
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On Sun, 2010-06-20 at 00:21 +0200, Helge Deller wrote:
> On 06/18/2010 10:40 PM, Helge Deller wrote:
> > On 06/18/2010 05:03 PM, James Bottomley wrote:
> >> Part of this arguing with ksplice about their plan for
> >> -ffunction-sections and -fdata-sections got me thinking about how we do
> >> modules.  Right at the moment we have one section for every function in
> >> a module, which leads to a massive amount of relocation overhead in the
> >> in-kernel module loader.  Plus for some modules (ipv6, I believe), we
> >> lack the relative jumps to get out of the function because we only put
> >> the stubs after all the text sections.
> >>
> >> The way to fix all of this, I think, is to make the real linker do more
> >> work.  It should be beneficial to us because the linker *should* be able
> >> to rearrange the sections to get the maximum number of jumps satisfiable
> >> relatively.
> >>
> >> I've tested that this works on pa8800 systems, but I'd really like
> >> someone to try a failing module on a 32 bit platform (since 64 bits has
> >> 22 bit relative jumps, all the modules actually work).
> > 
> > Hi James,
> > 
> > I think there is no failing module on 32bit right now.
> > The biggest modules were ipv6.ko and xfs.ko, which do work now
> > since the latest module changes.
> > 
> > But if your patch saves relocations it's a win nevertheless.
> > I can't test your patch right now, but will try tomorrow evening....
> 
> Hi James,
> 
> I just tested your patch on a 32bit kernel.
> 
> The wins wrt module size is good:
> ipv6.ko:	415K -> 357K
> xfs.ko:		902K -> 747K

Actually, that's not really necessarily a win ... it's probably mostly
container code and relocations.

> (btw, what is the command you ran to count the sections and relocs?).

objdump (-r or --section-headers)

> But your patch doesn't work on 32bit.
> root@c3000:~# modprobe xfs
> FATAL: Error inserting xfs (/lib/modules/2.6.35-rc3-32bit+/kernel/fs/xfs/xfs.ko): Invalid module format
> 
> dmesg says:
> module xfs relocation of symbol memcpy is out of range (0x3ffeffaa in 17 bits)
> 
> That's exactly the problem, and this reminded me on what my latest patch to
> the linux kernel module loader on hppa did.
> 
> Just look at the weak function arch_mod_section_prepend() in arch/parisc/kernel/module.c,
> and at the top of that file:
> 
>  *    Notes:
>  *    - PLT stub handling
>  *      On 32bit (and sometimes 64bit) and with big kernel modules like xfs or
>  *      ipv6 the relocation types R_PARISC_PCREL17F and R_PARISC_PCREL22F may
>  *      fail to reach their PLT stub if we only create one big stub array for
>  *      all sections at the beginning of the core or init section.
>  *      Instead we now insert individual PLT stub entries directly in front of
>  *      of the code sections where the stubs are actually called.
>  *      This reduces the distance between the PCREL location and the stub entry
>  *      so that the relocations can be fulfilled.
>  *      While calculating the final layout of the kernel module in memory, the
>  *      kernel module loader calls arch_mod_section_prepend() to request the
>  *      to be reserved amount of memory in front of each individual section.
> 
> So, your patch merges all text sections, which then let the new kernel
> module loader fail on 32bit since it's only one big section with too long distances...

The theory was that the linker should do the right thing and not emit a
relocation that can't reach the boundary of the text segment (i.e. it
should embed a stub between the sections as it combines them).  I'll
have to fire up a 32 bit compile and see exactly what it thinks it's
doing ... I've got a nasty feeling it expects us to be able to stub
either at the beginning or the end, which the in-kernel loader doesn't.

Thanks for testing the preliminary patch, anyway.

James


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Subject: Re: [RFC] fix the relative jump problem on large modules
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> The theory was that the linker should do the right thing and not emit a
> relocation that can't reach the boundary of the text segment (i.e. it
> should embed a stub between the sections as it combines them).  I'll
> have to fire up a 32 bit compile and see exactly what it thinks it's
> doing ... I've got a nasty feeling it expects us to be able to stub
> either at the beginning or the end, which the in-kernel loader doesn't.

See ld --stub-group-size=N option.  GCC assumes stub sections are at
the beginning and that the linker can insert stubs between input sections.
Merging text sections is likely to cause problems.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: vfork test case.
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Carlos,

> I have constructed a vfork test case which shows some of the problems
> I have using vfork reliably. This fails every time on my PA8700 system
> running 2.6.32-rc6. It appears as though r28 (ret0) in the parent is
> being corrupted.

It seems the vfork implementation has changed in 2.11.1 from
using clone to the vfork syscall.  I tried to build gdb head
today, but it dies at startup due to a problem with vfork.  This
is potentially also an issue with gcc as it uses the same
libiberty code.

I filed a sourceware bug, but closed it when I realized that
this is a glibc/kernel bug:
http://sourceware.org/bugzilla/show_bug.cgi?id=11730

After spending some time looking at this, I realized that __vfork
is broken.  It should not allocate a frame as the child may clobber
the parent's frame when it does a call, etc.  A frame should only
be allocated and popped around the call to the syscall error handler.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:06 2018
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On Sat, 2010-06-19 at 19:21 -0400, John David Anglin wrote:
> > The theory was that the linker should do the right thing and not emit a
> > relocation that can't reach the boundary of the text segment (i.e. it
> > should embed a stub between the sections as it combines them).  I'll
> > have to fire up a 32 bit compile and see exactly what it thinks it's
> > doing ... I've got a nasty feeling it expects us to be able to stub
> > either at the beginning or the end, which the in-kernel loader doesn't.
> 
> See ld --stub-group-size=N option.

I was assuming that was the default, like on arm, I take it it's not?

>   GCC assumes stub sections are at
> the beginning and that the linker can insert stubs between input sections.
> Merging text sections is likely to cause problems.

Well, the theory was that ld was capable of more intelligent section
layout decisions than the in-kernel linker.  If you're saying that's not
true, then there's probably not much point to doing this.

James


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From - Thu Nov 08 21:06:06 2018
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Subject: Re: [RFC] fix the relative jump problem on large modules
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On Sun, 20 Jun 2010, James Bottomley wrote:

> On Sat, 2010-06-19 at 19:21 -0400, John David Anglin wrote:
> > > The theory was that the linker should do the right thing and not emit a
> > > relocation that can't reach the boundary of the text segment (i.e. it
> > > should embed a stub between the sections as it combines them).  I'll
> > > have to fire up a 32 bit compile and see exactly what it thinks it's
> > > doing ... I've got a nasty feeling it expects us to be able to stub
> > > either at the beginning or the end, which the in-kernel loader doesn't.
> > 
> > See ld --stub-group-size=N option.
> 
> I was assuming that was the default, like on arm, I take it it's not?

The default N value stubs at the beginning or end.  A negative value
puts stubs before the input section.  There's a default value for N
which matches the value in gcc which came from hpux.

I believe that arm originally followed the parisc approach.  Possibly,
their current implementation should be looked at.

> >   GCC assumes stub sections are at
> > the beginning and that the linker can insert stubs between input sections.
> > Merging text sections is likely to cause problems.
> 
> Well, the theory was that ld was capable of more intelligent section
> layout decisions than the in-kernel linker.  If you're saying that's not
> true, then there's probably not much point to doing this.

I'm not sure it's more intelligent.  The code for generating stub groups
is quite old now.

Dave
-- 
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From: Helge Deller <deller@gmx.de>
Date: Sun, 20 Jun 2010 00:41:39 +0200

> Fix commit 4cd24eaf0 (net: use netdev_mc_count and netdev_mc_empty when
> appropriate)
> 
> Signed-off-by: Helge Deller <deller@gmx.de>

Applied, please CC: netdev@vger.kernel.org when posting networking
patches in the future, thanks.

> CC: Linus Torvalds <torvalds@linux-foundation.org>
> CC: Kyle McMartin <kyle@mcmartin.ca>
> CC: "David S. Miller" <davem@davemloft.net>
> CC: Jiri Pirko <jpirko@redhat.com>
> 
> --- a/drivers/net/lib82596.c
> +++ b/drivers/net/lib82596.c
> @@ -1343,7 +1343,7 @@ static void set_multicast_list(struct net_device *dev)
>  	DEB(DEB_MULTI,
>  	    printk(KERN_DEBUG
>  		   "%s: set multicast list, %d entries, promisc %s, allmulti %s\n",
> -		   dev->name, dev->mc_count,
> +		   dev->name, netdev_mc_count(dev),
>  		   dev->flags & IFF_PROMISC ? "ON" : "OFF",
>  		   dev->flags & IFF_ALLMULTI ? "ON" : "OFF"));
>  
> 
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On Mon, Jun 21, 2010 at 01:50:50PM -0700, David Miller wrote:
> From: Helge Deller <deller@gmx.de>
> Date: Sun, 20 Jun 2010 00:41:39 +0200
> 
> > Fix commit 4cd24eaf0 (net: use netdev_mc_count and netdev_mc_empty when
> > appropriate)
> > 
> > Signed-off-by: Helge Deller <deller@gmx.de>
> 
> Applied, please CC: netdev@vger.kernel.org when posting networking
> patches in the future, thanks.
> 

Thanks for catching this, Dave.

--Kyle
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On Fri, 18 Jun 2010 00:30:51 +0900
Paul Mundt <lethal@linux-sh.org> wrote:

> On Thu, Jun 17, 2010 at 11:50:35PM +0900, FUJITA Tomonori wrote:
> > On Thu, 17 Jun 2010 07:36:53 -0700 (PDT)
> > David Miller <davem@davemloft.net> wrote:
> > 
> > > From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> > > Date: Thu, 17 Jun 2010 21:21:13 +0900
> > > 
> > > > On Wed, 16 Jun 2010 23:24:44 -0700
> > > > "Michael Chan" <mchan@broadcom.com> wrote:
> > > > 
> > > >> David, why is dma_is_consistent() always returning 1 on sparc?  The
> > > >> streaming DMA is not consistent.
> > > > 
> > > > I think that there are some confusion about dma_is_consistent(). Some
> > > > architectures think that dma_is_consistent() is supposed to return 1
> > > > if they can allocate coherent memory (note that some architectures
> > > > can't allocate coherent memory).
> > > 
> > > Right, and that's why it's defined this way.
> > > 
> > > If the desired meaning is different, just me know and I'll fix the
> > > sparc definition.
> > 
> > I think that there are some other architectures do the same. We need
> > to make sure that all the architectures define dma_is_consistent() in
> > the same meaning if drivers need it. However, I'm not sure we really
> > need dma_is_consistent(). There is only one user of it (and I think we
> > could remove it).
> > 
> > In the bnx2 case, we can simply prefetch on all the archs (or just
> > remove the optimization).
> 
> I think its worthwhile keeping, especially since the consistency can vary
> on a per struct device level. If there's a benefit with these sorts of
> prefetch micro-optimizations in drivers when it doesn't cost us that much
> to provide the hint, I don't really see the harm. If dma_is_consistent()
> is suddenly supposed to take on other meanings, or it's supposed to mean
> something entirely different, then this is something we should deal with
> separately.
> 
> I don't see any harm in letting drivers know whether we can support
> consistent DMA allocs for a given struct device or not though, even if
> the micro-optimization is marginal at best.

I'm happier with exporting less DMA APIs to drivers because looks like
new original ways to use the APIs wrongly can be always invented.


> At least I've conditionalized the definition on SH, and it seems other
> archictures have done so too. It's not clear what we'd gain from throwing

>From a quick look, except for SH and POWERPC (and always-coherent
architectures), everyone does differently?

There are architectures that need to turn off the CPU cache for
coherent memory, I can't find none of them that see if an address is
coherent or not in dma_is_consistent().

As I wrote, there is only one user of this API and we can remove it
easily. Then I'm not sure it's worth fixing dma_is_consistent() in
many architectures. I prefer to add this to
feature-removal-schedule.txt to see if driver writers oppose.


> that away as long as they're generally in agreement on what it means.
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: vfork test case.
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On Sun, Jun 20, 2010 at 12:28 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> Carlos,
>
>> I have constructed a vfork test case which shows some of the problem=
s
>> I have using vfork reliably. This fails every time on my PA8700 syst=
em
>> running 2.6.32-rc6. It appears as though r28 (ret0) in the parent is
>> being corrupted.
>
> It seems the vfork implementation has changed in 2.11.1 from
> using clone to the vfork syscall. =A0I tried to build gdb head
> today, but it dies at startup due to a problem with vfork. =A0This
> is potentially also an issue with gcc as it uses the same
> libiberty code.

On hppa calling vfork in a non-multithreaded environment does the follo=
wing:

vfork [vfork.c] ->
  __fork (__libc_fork) [nptl/fork.c, linux/fork.c] ->
    ARCH_FORK (clone syscall) []

On hppa in a multithreaded environment (linked against libpthread.so)
vfork does the following:

vfork ->
  vfork syscall (pt-vfork.S)

This has not changed in 2.11.1.

Could you please elaborate on the change that you believe occurred in 2=
=2E11.1?

> I filed a sourceware bug, but closed it when I realized that
> this is a glibc/kernel bug:
> http://sourceware.org/bugzilla/show_bug.cgi?id=3D11730
>
> After spending some time looking at this, I realized that __vfork
> is broken. =A0It should not allocate a frame as the child may clobber
> the parent's frame when it does a call, etc. =A0A frame should only
> be allocated and popped around the call to the syscall error handler.

Oh dear, yes I see. After the child returns from vfork, it calls exec,
clobbering the vfork frame that the parent must still unwind from. Is
that what you mean?

Cheers,
Carlos.
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On Tue, Jun 22, 2010 at 11:17 AM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> Oh dear, yes I see. After the child returns from vfork, it calls exec,
> clobbering the vfork frame that the parent must still unwind from. Is
> that what you mean?

Is this a complete fix?

diff --git a/sysdeps/unix/sysv/linux/hppa/nptl/pt-vfork.S
b/sysdeps/unix/sysv/linux/hppa/nptl/pt-vfork.S
index 83a70b7..3c685cb 100644
--- a/sysdeps/unix/sysv/linux/hppa/nptl/pt-vfork.S
+++ b/sysdeps/unix/sysv/linux/hppa/nptl/pt-vfork.S
@@ -50,10 +50,9 @@

        /* r26, r25, r24, r23 are free since vfork has no arguments */
 ENTRY(__vfork)
-       /* Prologue */
-       stwm    %r3, 64(%sp)
-       stw     %sp, -4(%sp)
-       stw     %r19, -32(%sp)
+       /* We must not create a frame, otherwise when the child unwinds
+          to call exec it will clobber the same frame that the parent
+          needs to unwind.  */

        /* Save the PIC register. */
 #ifdef PIC
@@ -76,11 +75,16 @@ ENTRY(__vfork)
        b,n     .Lerror

        /* Return, no need to restore the PIC register. */
-       ldw     -84(%sp), %rp
-       bv      %r0(%rp)
-       ldwm    -64(%sp), %r3
+       ldw     -20(%sp), %rp
+       bv,n    %r0(%rp)

 .Lerror:
+       /* Now we need a stack to record the error. We are assured
+          that there is no child now, so it's safe to create
+          a frame.  */
+       stwm    %r3, 64(%sp)
+       stw     %sp, -4(%sp)
+
        sub     %r0,%ret0,%r3
        SYSCALL_ERROR_HANDLER
        /* Restore the PIC register (in delay slot) on error */

I'm building/testing this and I will tell you how it goes.

Cheers,
Carlos.
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From - Thu Nov 08 21:06:06 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: vfork test case.
Date: Tue, 22 Jun 2010 12:26:50 -0400 (EDT)
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To: carlos@systemhalted.org (Carlos O'Donell)
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> vfork ->
>   vfork syscall (pt-vfork.S)
> 
> This has not changed in 2.11.1.

I just assumed that a change must have occurred because of the behavior
of pex_unix_exec_child in libiberty/pex-unix.c.  I didn't investigate
history.

> Could you please elaborate on the change that you believe occurred in 2.11.=
> 1?
> 
> > I filed a sourceware bug, but closed it when I realized that
> > this is a glibc/kernel bug:
> > http://sourceware.org/bugzilla/show_bug.cgi?id=3D11730
> >
> > After spending some time looking at this, I realized that __vfork
> > is broken. =A0It should not allocate a frame as the child may clobber
> > the parent's frame when it does a call, etc. =A0A frame should only
> > be allocated and popped around the call to the syscall error handler.
> 
> Oh dear, yes I see. After the child returns from vfork, it calls exec,
> clobbering the vfork frame that the parent must still unwind from. Is
> that what you mean?

Yes.  Actually, pex_unix_exec_child may call dup2 and close as well.
In my gdb build, the parent's return address in the frame is clobbered
resulting in pex_child_error being called by the parent.

I looked at the hpux implementation and it doesn't create a frame.
Of course, the vfork syscall then must not clobber the return address,
etc.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: bnx2 fails to compile on parisc because of missing
	get_dma_ops()
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On Tue, Jun 22, 2010 at 03:30:08PM +0900, FUJITA Tomonori wrote:
...
> > I don't see any harm in letting drivers know whether we can support
> > consistent DMA allocs for a given struct device or not though, even if
> > the micro-optimization is marginal at best.
> 
> I'm happier with exporting less DMA APIs to drivers because looks like
> new original ways to use the APIs wrongly can be always invented.

Agree.

...
> There are architectures that need to turn off the CPU cache for
> coherent memory, I can't find none of them that see if an address is
> coherent or not in dma_is_consistent().

parisc "knows" primarily based on chipset and then checks CPU model.
We hook in the correct dma_ops early in boot before any device drivers
are probed.

hth,
grant
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On Tue, 2010-06-22 at 15:30 +0900, FUJITA Tomonori wrote:
> On Fri, 18 Jun 2010 00:30:51 +0900
> Paul Mundt <lethal@linux-sh.org> wrote:
> 
> > On Thu, Jun 17, 2010 at 11:50:35PM +0900, FUJITA Tomonori wrote:
> > > On Thu, 17 Jun 2010 07:36:53 -0700 (PDT)
> > > David Miller <davem@davemloft.net> wrote:
> > > 
> > > > From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> > > > Date: Thu, 17 Jun 2010 21:21:13 +0900
> > > > 
> > > > > On Wed, 16 Jun 2010 23:24:44 -0700
> > > > > "Michael Chan" <mchan@broadcom.com> wrote:
> > > > > 
> > > > >> David, why is dma_is_consistent() always returning 1 on sparc?  The
> > > > >> streaming DMA is not consistent.
> > > > > 
> > > > > I think that there are some confusion about dma_is_consistent(). Some
> > > > > architectures think that dma_is_consistent() is supposed to return 1
> > > > > if they can allocate coherent memory (note that some architectures
> > > > > can't allocate coherent memory).
> > > > 
> > > > Right, and that's why it's defined this way.
> > > > 
> > > > If the desired meaning is different, just me know and I'll fix the
> > > > sparc definition.
> > > 
> > > I think that there are some other architectures do the same. We need
> > > to make sure that all the architectures define dma_is_consistent() in
> > > the same meaning if drivers need it. However, I'm not sure we really
> > > need dma_is_consistent(). There is only one user of it (and I think we
> > > could remove it).
> > > 
> > > In the bnx2 case, we can simply prefetch on all the archs (or just
> > > remove the optimization).
> > 
> > I think its worthwhile keeping, especially since the consistency can vary
> > on a per struct device level. If there's a benefit with these sorts of
> > prefetch micro-optimizations in drivers when it doesn't cost us that much
> > to provide the hint, I don't really see the harm. If dma_is_consistent()
> > is suddenly supposed to take on other meanings, or it's supposed to mean
> > something entirely different, then this is something we should deal with
> > separately.
> > 
> > I don't see any harm in letting drivers know whether we can support
> > consistent DMA allocs for a given struct device or not though, even if
> > the micro-optimization is marginal at best.
> 
> I'm happier with exporting less DMA APIs to drivers because looks like
> new original ways to use the APIs wrongly can be always invented.
> 
> 
> > At least I've conditionalized the definition on SH, and it seems other
> > archictures have done so too. It's not clear what we'd gain from throwing
> 
> >From a quick look, except for SH and POWERPC (and always-coherent
> architectures), everyone does differently?
> 
> There are architectures that need to turn off the CPU cache for
> coherent memory, I can't find none of them that see if an address is
> coherent or not in dma_is_consistent().

Yes, I fear ... parisc.  We have a class of machines where this is the
only way (and we also have a class of machines where the cache disable
doesn't work properly and we can't manufacture coherent memory at all).
All our pa2.0 systems are fully integrated between the iommu cache and
the CPU cache, so they can manufacture coherent memory properly, but the
pa1.0 systems are a mixed bag of dirty tricks.

> As I wrote, there is only one user of this API and we can remove it
> easily. Then I'm not sure it's worth fixing dma_is_consistent() in
> many architectures. I prefer to add this to
> feature-removal-schedule.txt to see if driver writers oppose.

Let me check our two drivers: lasi and 53c700; they're the only ones we
support on the architecture that can't do any coherence.  I think we
don't need to tell because the dma_sync_cache calls which replace
coherent memory handling are indirected on the platform so we don't need
a global dma_is_coherent() flag.

James


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On Tue, Jun 22, 2010 at 12:26 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> vfork ->
>> =A0 vfork syscall (pt-vfork.S)
>>
>> This has not changed in 2.11.1.
>
> I just assumed that a change must have occurred because of the behavi=
or
> of pex_unix_exec_child in libiberty/pex-unix.c. =A0I didn't investiga=
te
> history.

Thank you, I don't expect anything has changed, but even if it hasn't
there is still a bug in glibc.

> Yes. =A0Actually, pex_unix_exec_child may call dup2 and close as well=
=2E
> In my gdb build, the parent's return address in the frame is clobbere=
d
> resulting in pex_child_error being called by the parent.

Technically POSIX says it can't call dup2/close, but under Linux the
vfork implementation duplicates file descriptors and therefore
dup2/close are OK to use before execve.

The important part is that vfork *must not* create a frame in the
parent that the child unwinds.

> I looked at the hpux implementation and it doesn't create a frame.
> Of course, the vfork syscall then must not clobber the return address=
,
> etc.

Yes, the vfork syscall *must not* clobber r2, without a stack we have
nowhere to save it. I'm pretty sure the kernel preserves r2 across a
vfork. The next step is to verify that :-)

Cheers,
Carlos.
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> > I looked at the hpux implementation and it doesn't create a frame.
> > Of course, the vfork syscall then must not clobber the return address,
> > etc.
> 
> Yes, the vfork syscall *must not* clobber r2, without a stack we have
> nowhere to save it. I'm pretty sure the kernel preserves r2 across a
> vfork. The next step is to verify that :-)

Actually, it's ok to save it in the __fork caller's frame at the standard
location.  r2 is always saved there by the callee.  The argument slots for
r26 thru r23 and the PIC register slot also can be used.

Dave
-- 
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On Tue, Jun 22, 2010 at 2:44 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> > I looked at the hpux implementation and it doesn't create a frame.
>> > Of course, the vfork syscall then must not clobber the return addr=
ess,
>> > etc.
>>
>> Yes, the vfork syscall *must not* clobber r2, without a stack we hav=
e
>> nowhere to save it. I'm pretty sure the kernel preserves r2 across a
>> vfork. The next step is to verify that :-)
>
> Actually, it's ok to save it in the __fork caller's frame at the stan=
dard
> location. =A0r2 is always saved there by the callee. =A0The argument =
slots for
> r26 thru r23 and the PIC register slot also can be used.

I disagree with you.

What about this scenario:
* Parent call vfork, saves rp in -20(%sp) (parents frame)
* Parent suspends upon entry to vfork syscall
* Child returns from vfork syscall
* Child restores rp from -20(%sp) (parents frame)
* Child calls close which saves rp in -20(%sp) (parents frame)
* Child calls execve
* Parent resumes, restores rp from -20(%sp) and incorrectly returns to
just after the call to close.

At this point if the parent restores rp from the parents frame it will
get the rp the child's call to close saved.

The only way to get around this is to *ensure* the kernel
saves/restores r2 across the syscall.

I see no other way around it.

Cheers,
Carlos.
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> I disagree with you.
> 
> What about this scenario:
> * Parent call vfork, saves rp in -20(%sp) (parents frame)
> * Parent suspends upon entry to vfork syscall
> * Child returns from vfork syscall
> * Child restores rp from -20(%sp) (parents frame)
> * Child calls close which saves rp in -20(%sp) (parents frame)
> * Child calls execve
> * Parent resumes, restores rp from -20(%sp) and incorrectly returns to
> just after the call to close.
> 
> At this point if the parent restores rp from the parents frame it will
> get the rp the child's call to close saved.

You are right.

> 
> The only way to get around this is to *ensure* the kernel
> saves/restores r2 across the syscall.
> 
> I see no other way around it.

It looks as if r2 is saved for both parent and child.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Jun 22, 2010 at 4:20 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> At this point if the parent restores rp from the parents frame it will
>> get the rp the child's call to close saved.
>
> You are right.
>
>>
>> The only way to get around this is to *ensure* the kernel
>> saves/restores r2 across the syscall.
>>
>> I see no other way around it.
>
> It looks as if r2 is saved for both parent and child.

Perfect, in that case we have all the bases covered.

I have seen no regressions in my testing, so I will push this patch
into glibc-ports, and notify debian.

I still saw a hang in tst-vfork2, but I haven't investigated this yet.

Cheers,
Carlos.
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From - Thu Nov 08 21:06:07 2018
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X-Mozilla-Keys:                                                                                 
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: vfork test case.
Date: Tue, 22 Jun 2010 18:50:35 -0400
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Cc: dave.anglin@nrc-cnrc.gc.ca, linux-parisc@vger.kernel.org,
	kyle@mcmartin.ca, James.Bottomley@hansenpartnership.com
To: Carlos O'Donell <carlos@systemhalted.org>
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On Tue, 22 Jun 2010, Carlos O'Donell wrote:

>         /* Return, no need to restore the PIC register. */
> -       ldw     -84(%sp), %rp
> -       bv      %r0(%rp)
> -       ldwm    -64(%sp), %r3
> +       ldw     -20(%sp), %rp
> +       bv,n    %r0(%rp)

For the reasons discussed, I don't believe that %rp should be restored
from the stack.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:07 2018
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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel
Subject: Re: bnx2 fails to compile on parisc because of missing
 get_dma_ops()
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To: James.Bottomley@HansenPartnership.com
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On Tue, 22 Jun 2010 12:26:04 -0500
James Bottomley <James.Bottomley@HansenPartnership.com> wrote:

> > As I wrote, there is only one user of this API and we can remove it
> > easily. Then I'm not sure it's worth fixing dma_is_consistent() in
> > many architectures. I prefer to add this to
> > feature-removal-schedule.txt to see if driver writers oppose.
> 
> Let me check our two drivers: lasi and 53c700; they're the only ones we
> support on the architecture that can't do any coherence.  I think we
> don't need to tell because the dma_sync_cache calls which replace
> coherent memory handling are indirected on the platform so we don't need
> a global dma_is_coherent() flag.

There is only one place where 53c700 uses dma_is_consistent() (lasi
doesn't use it):

	BUG_ON(!dma_is_consistent(hostdata->dev, pScript) && L1_CACHE_BYTES < dma_get_cache_alignment());

I think that we can remove the above checking since the existing
parisc systems that can't allocate coherent memory pass this checking.

53c700 and lasi call dma_cache_sync() unconditionally so we can live
without dma_is_consistent().
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From - Thu Nov 08 21:06:07 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: gcc-4.5 -fdelayed-branch strikes back
Date: Sun, 27 Jun 2010 15:48:04 +0200
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To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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Hi Dave,

What commit/version were you using exactly for your tests ?

I've setup a debian chroot on both my c3600 and c8000 and I'm able to
reproduce with the latest experimental gcc :
gcc version 4.5.1 20100527 (prerelease) (Debian 4.5.0-4) 

On my gentoo systems, the compiler used to build gcc didn't seem to
make a difference, I've tried 4.2.4, 4.3.3 and 4.4.3, every gcc-4.5
compiled with those failed the same way.

I've reattached the test case since I removed the dependency to
libiberty.h.

Regards,
  Guy

On Sun, 13 Jun 2010 15:24:47 -0400
John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:

> On Fri, 11 Jun 2010, Guy Martin wrote:
> 
> Hi Guy,
> 
> > The test case should make things pretty easy to repro. But if you
> > need some more details let me know.
> 
> I wasn't able to get your testcase to fail with my last build of
> 4.5.1. It used 4.3.3 for the bootstrap compiler.  I'm fairly certain
> 4.5 is being miscompliled in stage1 when 4.4 is used as the bootstap
> compiler.
> 
> Dave


--MP_/7fMe95KU5NVNdr3x.NL/hmC
Content-Type: text/x-c++src
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename=gengenrtl.c

/* Generate code to allocate RTL structures.
   Copyright (C) 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2007
   Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */


#include <string.h>
#include <stdio.h>
#define gcc_unreachable() __builtin_unreachable()

struct rtx_definition
{
  const char *const enumname, *const name, *const format;
};

/* rtl.def needs CONST_DOUBLE_FORMAT, but we don't care what
   CONST_DOUBLE_FORMAT is because we're not going to be generating
   anything for CONST_DOUBLE anyway.  */
#define CONST_DOUBLE_FORMAT ""

#define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) { #ENUM, NAME, FORMAT },

 const struct rtx_definition defs[] =
{
DEF_RTL_EXPR(UNKNOWN, "UnKnown", "*", RTX_EXTRA)
DEF_RTL_EXPR(VALUE, "value", "0", RTX_OBJ)
DEF_RTL_EXPR(DEBUG_EXPR, "debug_expr", "0", RTX_OBJ)
DEF_RTL_EXPR(EXPR_LIST, "expr_list", "ee", RTX_EXTRA)
DEF_RTL_EXPR(INSN_LIST, "insn_list", "ue", RTX_EXTRA)
DEF_RTL_EXPR(SEQUENCE, "sequence", "E", RTX_EXTRA)
DEF_RTL_EXPR(ADDRESS, "address", "e", RTX_MATCH)
DEF_RTL_EXPR(DEBUG_INSN, "debug_insn", "iuuBieie", RTX_INSN)
DEF_RTL_EXPR(INSN, "insn", "iuuBieie", RTX_INSN)
DEF_RTL_EXPR(JUMP_INSN, "jump_insn", "iuuBieie0", RTX_INSN)
DEF_RTL_EXPR(CALL_INSN, "call_insn", "iuuBieiee", RTX_INSN)
DEF_RTL_EXPR(BARRIER, "barrier", "iuu00000", RTX_EXTRA)
DEF_RTL_EXPR(CODE_LABEL, "code_label", "iuuB00is", RTX_EXTRA)
DEF_RTL_EXPR(NOTE, "note", "iuuB0ni", RTX_EXTRA)
DEF_RTL_EXPR(COND_EXEC, "cond_exec", "ee", RTX_EXTRA)
DEF_RTL_EXPR(PARALLEL, "parallel", "E", RTX_EXTRA)
DEF_RTL_EXPR(ASM_INPUT, "asm_input", "si", RTX_EXTRA)
DEF_RTL_EXPR(ASM_OPERANDS, "asm_operands", "ssiEEEi", RTX_EXTRA)
DEF_RTL_EXPR(UNSPEC, "unspec", "Ei", RTX_EXTRA)
DEF_RTL_EXPR(UNSPEC_VOLATILE, "unspec_volatile", "Ei", RTX_EXTRA)
DEF_RTL_EXPR(ADDR_VEC, "addr_vec", "E", RTX_EXTRA)
DEF_RTL_EXPR(ADDR_DIFF_VEC, "addr_diff_vec", "eEee0", RTX_EXTRA)
DEF_RTL_EXPR(PREFETCH, "prefetch", "eee", RTX_EXTRA)
DEF_RTL_EXPR(SET, "set", "ee", RTX_EXTRA)
DEF_RTL_EXPR(USE, "use", "e", RTX_EXTRA)
DEF_RTL_EXPR(CLOBBER, "clobber", "e", RTX_EXTRA)
DEF_RTL_EXPR(CALL, "call", "ee", RTX_EXTRA)
DEF_RTL_EXPR(RETURN, "return", "", RTX_EXTRA)
DEF_RTL_EXPR(EH_RETURN, "eh_return", "", RTX_EXTRA)
DEF_RTL_EXPR(TRAP_IF, "trap_if", "ee", RTX_EXTRA)
DEF_RTL_EXPR(CONST_INT, "const_int", "w", RTX_CONST_OBJ)
DEF_RTL_EXPR(CONST_FIXED, "const_fixed", "www", RTX_CONST_OBJ)
DEF_RTL_EXPR(CONST_DOUBLE, "const_double", CONST_DOUBLE_FORMAT, RTX_CONST_OBJ)
DEF_RTL_EXPR(CONST_VECTOR, "const_vector", "E", RTX_CONST_OBJ)
DEF_RTL_EXPR(CONST_STRING, "const_string", "s", RTX_OBJ)
DEF_RTL_EXPR(CONST, "const", "e", RTX_CONST_OBJ)
DEF_RTL_EXPR(PC, "pc", "", RTX_OBJ)
DEF_RTL_EXPR(REG, "reg", "i00", RTX_OBJ)
DEF_RTL_EXPR(SCRATCH, "scratch", "0", RTX_OBJ)
DEF_RTL_EXPR(SUBREG, "subreg", "ei", RTX_EXTRA)
DEF_RTL_EXPR(STRICT_LOW_PART, "strict_low_part", "e", RTX_EXTRA)
DEF_RTL_EXPR(CONCAT, "concat", "ee", RTX_OBJ)
DEF_RTL_EXPR(CONCATN, "concatn", "E", RTX_OBJ)
DEF_RTL_EXPR(MEM, "mem", "e0", RTX_OBJ)
DEF_RTL_EXPR(LABEL_REF, "label_ref", "u", RTX_CONST_OBJ)
DEF_RTL_EXPR(SYMBOL_REF, "symbol_ref", "s00", RTX_CONST_OBJ)
DEF_RTL_EXPR(CC0, "cc0", "", RTX_OBJ)
DEF_RTL_EXPR(IF_THEN_ELSE, "if_then_else", "eee", RTX_TERNARY)
DEF_RTL_EXPR(COMPARE, "compare", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(PLUS, "plus", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(MINUS, "minus", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(NEG, "neg", "e", RTX_UNARY)
DEF_RTL_EXPR(MULT, "mult", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(SS_MULT, "ss_mult", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(US_MULT, "us_mult", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(DIV, "div", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(SS_DIV, "ss_div", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(US_DIV, "us_div", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(MOD, "mod", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(UDIV, "udiv", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(UMOD, "umod", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(AND, "and", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(IOR, "ior", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(XOR, "xor", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(NOT, "not", "e", RTX_UNARY)
DEF_RTL_EXPR(ASHIFT, "ashift", "ee", RTX_BIN_ARITH) /* shift left */
DEF_RTL_EXPR(ROTATE, "rotate", "ee", RTX_BIN_ARITH) /* rotate left */
DEF_RTL_EXPR(ASHIFTRT, "ashiftrt", "ee", RTX_BIN_ARITH) /* arithmetic shift right */
DEF_RTL_EXPR(LSHIFTRT, "lshiftrt", "ee", RTX_BIN_ARITH) /* logical shift right */
DEF_RTL_EXPR(ROTATERT, "rotatert", "ee", RTX_BIN_ARITH) /* rotate right */
DEF_RTL_EXPR(SMIN, "smin", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(SMAX, "smax", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(UMIN, "umin", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(UMAX, "umax", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(PRE_DEC, "pre_dec", "e", RTX_AUTOINC)
DEF_RTL_EXPR(PRE_INC, "pre_inc", "e", RTX_AUTOINC)
DEF_RTL_EXPR(POST_DEC, "post_dec", "e", RTX_AUTOINC)
DEF_RTL_EXPR(POST_INC, "post_inc", "e", RTX_AUTOINC)
DEF_RTL_EXPR(PRE_MODIFY, "pre_modify", "ee", RTX_AUTOINC)
DEF_RTL_EXPR(POST_MODIFY, "post_modify", "ee", RTX_AUTOINC)
DEF_RTL_EXPR(NE, "ne", "ee", RTX_COMM_COMPARE)
DEF_RTL_EXPR(EQ, "eq", "ee", RTX_COMM_COMPARE)
DEF_RTL_EXPR(GE, "ge", "ee", RTX_COMPARE)
DEF_RTL_EXPR(GT, "gt", "ee", RTX_COMPARE)
DEF_RTL_EXPR(LE, "le", "ee", RTX_COMPARE)
DEF_RTL_EXPR(LT, "lt", "ee", RTX_COMPARE)
DEF_RTL_EXPR(GEU, "geu", "ee", RTX_COMPARE)
DEF_RTL_EXPR(GTU, "gtu", "ee", RTX_COMPARE)
DEF_RTL_EXPR(LEU, "leu", "ee", RTX_COMPARE)
DEF_RTL_EXPR(LTU, "ltu", "ee", RTX_COMPARE)
DEF_RTL_EXPR(UNORDERED, "unordered", "ee", RTX_COMM_COMPARE)
DEF_RTL_EXPR(ORDERED, "ordered", "ee", RTX_COMM_COMPARE)
DEF_RTL_EXPR(UNEQ, "uneq", "ee", RTX_COMM_COMPARE)
DEF_RTL_EXPR(UNGE, "unge", "ee", RTX_COMPARE)
DEF_RTL_EXPR(UNGT, "ungt", "ee", RTX_COMPARE)
DEF_RTL_EXPR(UNLE, "unle", "ee", RTX_COMPARE)
DEF_RTL_EXPR(UNLT, "unlt", "ee", RTX_COMPARE)
DEF_RTL_EXPR(LTGT, "ltgt", "ee", RTX_COMM_COMPARE)
DEF_RTL_EXPR(SIGN_EXTEND, "sign_extend", "e", RTX_UNARY)
DEF_RTL_EXPR(ZERO_EXTEND, "zero_extend", "e", RTX_UNARY)
DEF_RTL_EXPR(TRUNCATE, "truncate", "e", RTX_UNARY)
DEF_RTL_EXPR(FLOAT_EXTEND, "float_extend", "e", RTX_UNARY)
DEF_RTL_EXPR(FLOAT_TRUNCATE, "float_truncate", "e", RTX_UNARY)
DEF_RTL_EXPR(FLOAT, "float", "e", RTX_UNARY)
DEF_RTL_EXPR(FIX, "fix", "e", RTX_UNARY)
DEF_RTL_EXPR(UNSIGNED_FLOAT, "unsigned_float", "e", RTX_UNARY)
DEF_RTL_EXPR(UNSIGNED_FIX, "unsigned_fix", "e", RTX_UNARY)
DEF_RTL_EXPR(FRACT_CONVERT, "fract_convert", "e", RTX_UNARY)
DEF_RTL_EXPR(UNSIGNED_FRACT_CONVERT, "unsigned_fract_convert", "e", RTX_UNARY)
DEF_RTL_EXPR(SAT_FRACT, "sat_fract", "e", RTX_UNARY)
DEF_RTL_EXPR(UNSIGNED_SAT_FRACT, "unsigned_sat_fract", "e", RTX_UNARY)
DEF_RTL_EXPR(ABS, "abs", "e", RTX_UNARY)
DEF_RTL_EXPR(SQRT, "sqrt", "e", RTX_UNARY)
DEF_RTL_EXPR(BSWAP, "bswap", "e", RTX_UNARY)
DEF_RTL_EXPR(FFS, "ffs", "e", RTX_UNARY)
DEF_RTL_EXPR(CLZ, "clz", "e", RTX_UNARY)
DEF_RTL_EXPR(CTZ, "ctz", "e", RTX_UNARY)
DEF_RTL_EXPR(POPCOUNT, "popcount", "e", RTX_UNARY)
DEF_RTL_EXPR(PARITY, "parity", "e", RTX_UNARY)
DEF_RTL_EXPR(SIGN_EXTRACT, "sign_extract", "eee", RTX_BITFIELD_OPS)
DEF_RTL_EXPR(ZERO_EXTRACT, "zero_extract", "eee", RTX_BITFIELD_OPS)
DEF_RTL_EXPR(HIGH, "high", "e", RTX_CONST_OBJ)
DEF_RTL_EXPR(LO_SUM, "lo_sum", "ee", RTX_OBJ)
DEF_RTL_EXPR(VEC_MERGE, "vec_merge", "eee", RTX_TERNARY)
DEF_RTL_EXPR(VEC_SELECT, "vec_select", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(VEC_CONCAT, "vec_concat", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(VEC_DUPLICATE, "vec_duplicate", "e", RTX_UNARY)
DEF_RTL_EXPR(SS_PLUS, "ss_plus", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(US_PLUS, "us_plus", "ee", RTX_COMM_ARITH)
DEF_RTL_EXPR(SS_MINUS, "ss_minus", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(SS_NEG, "ss_neg", "e", RTX_UNARY)
DEF_RTL_EXPR(US_NEG, "us_neg", "e", RTX_UNARY)
DEF_RTL_EXPR(SS_ABS, "ss_abs", "e", RTX_UNARY)
DEF_RTL_EXPR(SS_ASHIFT, "ss_ashift", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(US_ASHIFT, "us_ashift", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(US_MINUS, "us_minus", "ee", RTX_BIN_ARITH)
DEF_RTL_EXPR(SS_TRUNCATE, "ss_truncate", "e", RTX_UNARY)
DEF_RTL_EXPR(US_TRUNCATE, "us_truncate", "e", RTX_UNARY)
DEF_RTL_EXPR(VAR_LOCATION, "var_location", "tei", RTX_EXTRA)
};
#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
#define NUM_RTX_CODE ARRAY_SIZE(defs)

 const char *formats[NUM_RTX_CODE];

 const char *type_from_format	(int);
 const char *accessor_from_format	(int);
 int special_format		(const char *);
 void find_formats		(void);
 void gendecl			(const char *);


 const char *
type_from_format (int c)
{
  switch (c)
    {
    case 'i':
      return "int ";

    case 'w':
      return "HOST_WIDE_INT ";

    case 's':
      return "const char *";

    case 'e':  case 'u':
      return "rtx ";

    case 'E':
      return "rtvec ";
    case 'b':
      return "struct bitmap_head_def *";  /* bitmap - typedef not available */
    case 't':
      return "union tree_node *";  /* tree - typedef not available */
    case 'B':
      return "struct basic_block_def *";  /* basic block - typedef not available */
    default:
      gcc_unreachable ();
    }
}

/* Decode a format letter into the proper accessor function.  */

 const char *
accessor_from_format (int c)
{
  switch (c)
    {
    case 'i':
      return "XINT";

    case 'w':
      return "XWINT";

    case 's':
      return "XSTR";

    case 'e':  case 'u':
      return "XEXP";

    case 'E':
      return "XVEC";

    case 'b':
      return "XBITMAP";

    case 't':
      return "XTREE";

    case 'B':
      return "XBBDEF";

    default:
      gcc_unreachable ();
    }
}


/* Place a list of all format specifiers we use into the array FORMAT.  */

 void
find_formats (void)
{
  unsigned int i;

  for (i = 0; i < NUM_RTX_CODE; i++)
    {
      const char **f;

     if (strchr (defs[i].format, '*') != 0 || strchr (defs[i].format, 'V') != 0 || strchr (defs[i].format, 'S') != 0 || strchr (defs[i].format, 'n') != 0)
       continue;

      for (f = formats; *f; f++)
	if (! strcmp (*f, defs[i].format))
	  break;

      if (*f == 0)
	*f = defs[i].format;
    }
}

/* Write the declarations for the routine to allocate RTL with FORMAT.  */

 void
gendecl (const char *format)
{
  const char *p;
  int i, pos;

  printf ("extern rtx gen_rtx_fmt_%s_stat\t (RTX_CODE, ", format);
  printf ("enum machine_mode mode");

  /* Write each parameter that is needed and start a new line when the line
     would overflow.  */
  for (p = format, i = 0, pos = 75; *p != 0; p++)
    if (*p != '0')
      {
	int ourlen = strlen (type_from_format (*p)) + 6 + (i > 9);

	printf (",");
	if (pos + ourlen > 76)
	  printf ("\n\t\t\t\t      "), pos = 39;

	printf (" %sarg%d", type_from_format (*p), i++);
	pos += ourlen;
      }
}



/* This is the main program.  We accept only one argument, "-h", which
   says we are writing the genrtl.h file.  Otherwise we are writing the
   genrtl.c file.  */

int
main (int argc, char **argv)
{
  find_formats ();

  const char **fmt;


  for (fmt = formats; *fmt; ++fmt)
    gendecl (*fmt);

  return 0;
}

--MP_/7fMe95KU5NVNdr3x.NL/hmC--
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: vfork test case.
Date: Sun, 27 Jun 2010 11:41:49 -0400
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On Tue, Jun 22, 2010 at 6:50 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> On Tue, 22 Jun 2010, Carlos O'Donell wrote:
>
>> =A0 =A0 =A0 =A0 /* Return, no need to restore the PIC register. */
>> - =A0 =A0 =A0 ldw =A0 =A0 -84(%sp), %rp
>> - =A0 =A0 =A0 bv =A0 =A0 =A0%r0(%rp)
>> - =A0 =A0 =A0 ldwm =A0 =A0-64(%sp), %r3
>> + =A0 =A0 =A0 ldw =A0 =A0 -20(%sp), %rp
>> + =A0 =A0 =A0 bv,n =A0 =A0%r0(%rp)
>
> For the reasons discussed, I don't believe that %rp should be restore=
d
> from the stack.

The final version of the patch does not restore %sp from the callers st=
ack.

This is now fixed upstream here:
http://sourceware.org/git/?p=3Dglibc-ports.git;a=3Dcommit;h=3D3680f14a7=
d12a9faa86e09aaea1b3aa20713355e

I have pushed this fix into debian-glibc, so it should be in the next
release of the library.

Cheers,
Carlos.
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From - Thu Nov 08 21:06:07 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: gcc-4.5 -fdelayed-branch strikes back
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To: Guy Martin <gmsoft@tuxicoman.be>
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Hi Guy,

I have not been able to reproduce your problem.  Originally, there
was a problem bootstrapping with

make -j2 LDFLAGS="-Wl,-O1" STAGE1_CFLAGS="-g3 -O2" BOOT_CFLAGS="-g -O2 -pipe -march=2.0" bootstrap-lean &&

but even that went away.  I have built gcc-4.6 (head) and gcc-4.5 (branch)
from svn sources numerous times without problems.  My current bootstrap
compiler is: gcc version 4.4.4 (Debian 4.4.4-5).

In general, delayed branch issues are not target specific as the
majority of the implementation is in reorg.  However, parisc is very
sensitive to reorg bugs.

There have been a few changes to the parisc port in the last month.
The most likely change to have an effect on parisc-linux is the change
to kill -freorder-blocks-and-partition.  I think it unlikely that this
affects bootstrap.  It's possible a change to the common code has
changed things.

More information is needed regarding the nature of the fault, where
it is, and how to reproduce (e.g., can it be reproduced with x86 cross).
If it really is a delayed branch issue, this needs to be a gcc PR.

Dave

On Sun, 27 Jun 2010, Guy Martin wrote:

> 
> Hi Dave,
> 
> What commit/version were you using exactly for your tests ?
> 
> I've setup a debian chroot on both my c3600 and c8000 and I'm able to
> reproduce with the latest experimental gcc :
> gcc version 4.5.1 20100527 (prerelease) (Debian 4.5.0-4) 
> 
> On my gentoo systems, the compiler used to build gcc didn't seem to
> make a difference, I've tried 4.2.4, 4.3.3 and 4.4.3, every gcc-4.5
> compiled with those failed the same way.
> 
> I've reattached the test case since I removed the dependency to
> libiberty.h.
> 
> Regards,
>   Guy
> 
> On Sun, 13 Jun 2010 15:24:47 -0400
> John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> 
> > On Fri, 11 Jun 2010, Guy Martin wrote:
> > 
> > Hi Guy,
> > 
> > > The test case should make things pretty easy to repro. But if you
> > > need some more details let me know.
> > 
> > I wasn't able to get your testcase to fail with my last build of
> > 4.5.1. It used 4.3.3 for the bootstrap compiler.  I'm fairly certain
> > 4.5 is being miscompliled in stage1 when 4.4 is used as the bootstap
> > compiler.
> > 
> > Dave
> 

> /* Generate code to allocate RTL structures.
>    Copyright (C) 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2007
>    Free Software Foundation, Inc.
> 
> This file is part of GCC.
> 
> GCC is free software; you can redistribute it and/or modify it under
> the terms of the GNU General Public License as published by the Free
> Software Foundation; either version 3, or (at your option) any later
> version.
> 
> GCC is distributed in the hope that it will be useful, but WITHOUT ANY
> WARRANTY; without even the implied warranty of MERCHANTABILITY or
> FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
> for more details.
> 
> You should have received a copy of the GNU General Public License
> along with GCC; see the file COPYING3.  If not see
> <http://www.gnu.org/licenses/>.  */
> 
> 
> #include <string.h>
> #include <stdio.h>
> #define gcc_unreachable() __builtin_unreachable()
> 
> struct rtx_definition
> {
>   const char *const enumname, *const name, *const format;
> };
> 
> /* rtl.def needs CONST_DOUBLE_FORMAT, but we don't care what
>    CONST_DOUBLE_FORMAT is because we're not going to be generating
>    anything for CONST_DOUBLE anyway.  */
> #define CONST_DOUBLE_FORMAT ""
> 
> #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) { #ENUM, NAME, FORMAT },
> 
>  const struct rtx_definition defs[] =
> {
> DEF_RTL_EXPR(UNKNOWN, "UnKnown", "*", RTX_EXTRA)
> DEF_RTL_EXPR(VALUE, "value", "0", RTX_OBJ)
> DEF_RTL_EXPR(DEBUG_EXPR, "debug_expr", "0", RTX_OBJ)
> DEF_RTL_EXPR(EXPR_LIST, "expr_list", "ee", RTX_EXTRA)
> DEF_RTL_EXPR(INSN_LIST, "insn_list", "ue", RTX_EXTRA)
> DEF_RTL_EXPR(SEQUENCE, "sequence", "E", RTX_EXTRA)
> DEF_RTL_EXPR(ADDRESS, "address", "e", RTX_MATCH)
> DEF_RTL_EXPR(DEBUG_INSN, "debug_insn", "iuuBieie", RTX_INSN)
> DEF_RTL_EXPR(INSN, "insn", "iuuBieie", RTX_INSN)
> DEF_RTL_EXPR(JUMP_INSN, "jump_insn", "iuuBieie0", RTX_INSN)
> DEF_RTL_EXPR(CALL_INSN, "call_insn", "iuuBieiee", RTX_INSN)
> DEF_RTL_EXPR(BARRIER, "barrier", "iuu00000", RTX_EXTRA)
> DEF_RTL_EXPR(CODE_LABEL, "code_label", "iuuB00is", RTX_EXTRA)
> DEF_RTL_EXPR(NOTE, "note", "iuuB0ni", RTX_EXTRA)
> DEF_RTL_EXPR(COND_EXEC, "cond_exec", "ee", RTX_EXTRA)
> DEF_RTL_EXPR(PARALLEL, "parallel", "E", RTX_EXTRA)
> DEF_RTL_EXPR(ASM_INPUT, "asm_input", "si", RTX_EXTRA)
> DEF_RTL_EXPR(ASM_OPERANDS, "asm_operands", "ssiEEEi", RTX_EXTRA)
> DEF_RTL_EXPR(UNSPEC, "unspec", "Ei", RTX_EXTRA)
> DEF_RTL_EXPR(UNSPEC_VOLATILE, "unspec_volatile", "Ei", RTX_EXTRA)
> DEF_RTL_EXPR(ADDR_VEC, "addr_vec", "E", RTX_EXTRA)
> DEF_RTL_EXPR(ADDR_DIFF_VEC, "addr_diff_vec", "eEee0", RTX_EXTRA)
> DEF_RTL_EXPR(PREFETCH, "prefetch", "eee", RTX_EXTRA)
> DEF_RTL_EXPR(SET, "set", "ee", RTX_EXTRA)
> DEF_RTL_EXPR(USE, "use", "e", RTX_EXTRA)
> DEF_RTL_EXPR(CLOBBER, "clobber", "e", RTX_EXTRA)
> DEF_RTL_EXPR(CALL, "call", "ee", RTX_EXTRA)
> DEF_RTL_EXPR(RETURN, "return", "", RTX_EXTRA)
> DEF_RTL_EXPR(EH_RETURN, "eh_return", "", RTX_EXTRA)
> DEF_RTL_EXPR(TRAP_IF, "trap_if", "ee", RTX_EXTRA)
> DEF_RTL_EXPR(CONST_INT, "const_int", "w", RTX_CONST_OBJ)
> DEF_RTL_EXPR(CONST_FIXED, "const_fixed", "www", RTX_CONST_OBJ)
> DEF_RTL_EXPR(CONST_DOUBLE, "const_double", CONST_DOUBLE_FORMAT, RTX_CONST_OBJ)
> DEF_RTL_EXPR(CONST_VECTOR, "const_vector", "E", RTX_CONST_OBJ)
> DEF_RTL_EXPR(CONST_STRING, "const_string", "s", RTX_OBJ)
> DEF_RTL_EXPR(CONST, "const", "e", RTX_CONST_OBJ)
> DEF_RTL_EXPR(PC, "pc", "", RTX_OBJ)
> DEF_RTL_EXPR(REG, "reg", "i00", RTX_OBJ)
> DEF_RTL_EXPR(SCRATCH, "scratch", "0", RTX_OBJ)
> DEF_RTL_EXPR(SUBREG, "subreg", "ei", RTX_EXTRA)
> DEF_RTL_EXPR(STRICT_LOW_PART, "strict_low_part", "e", RTX_EXTRA)
> DEF_RTL_EXPR(CONCAT, "concat", "ee", RTX_OBJ)
> DEF_RTL_EXPR(CONCATN, "concatn", "E", RTX_OBJ)
> DEF_RTL_EXPR(MEM, "mem", "e0", RTX_OBJ)
> DEF_RTL_EXPR(LABEL_REF, "label_ref", "u", RTX_CONST_OBJ)
> DEF_RTL_EXPR(SYMBOL_REF, "symbol_ref", "s00", RTX_CONST_OBJ)
> DEF_RTL_EXPR(CC0, "cc0", "", RTX_OBJ)
> DEF_RTL_EXPR(IF_THEN_ELSE, "if_then_else", "eee", RTX_TERNARY)
> DEF_RTL_EXPR(COMPARE, "compare", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(PLUS, "plus", "ee", RTX_COMM_ARITH)
> DEF_RTL_EXPR(MINUS, "minus", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(NEG, "neg", "e", RTX_UNARY)
> DEF_RTL_EXPR(MULT, "mult", "ee", RTX_COMM_ARITH)
> DEF_RTL_EXPR(SS_MULT, "ss_mult", "ee", RTX_COMM_ARITH)
> DEF_RTL_EXPR(US_MULT, "us_mult", "ee", RTX_COMM_ARITH)
> DEF_RTL_EXPR(DIV, "div", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(SS_DIV, "ss_div", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(US_DIV, "us_div", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(MOD, "mod", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(UDIV, "udiv", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(UMOD, "umod", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(AND, "and", "ee", RTX_COMM_ARITH)
> DEF_RTL_EXPR(IOR, "ior", "ee", RTX_COMM_ARITH)
> DEF_RTL_EXPR(XOR, "xor", "ee", RTX_COMM_ARITH)
> DEF_RTL_EXPR(NOT, "not", "e", RTX_UNARY)
> DEF_RTL_EXPR(ASHIFT, "ashift", "ee", RTX_BIN_ARITH) /* shift left */
> DEF_RTL_EXPR(ROTATE, "rotate", "ee", RTX_BIN_ARITH) /* rotate left */
> DEF_RTL_EXPR(ASHIFTRT, "ashiftrt", "ee", RTX_BIN_ARITH) /* arithmetic shift right */
> DEF_RTL_EXPR(LSHIFTRT, "lshiftrt", "ee", RTX_BIN_ARITH) /* logical shift right */
> DEF_RTL_EXPR(ROTATERT, "rotatert", "ee", RTX_BIN_ARITH) /* rotate right */
> DEF_RTL_EXPR(SMIN, "smin", "ee", RTX_COMM_ARITH)
> DEF_RTL_EXPR(SMAX, "smax", "ee", RTX_COMM_ARITH)
> DEF_RTL_EXPR(UMIN, "umin", "ee", RTX_COMM_ARITH)
> DEF_RTL_EXPR(UMAX, "umax", "ee", RTX_COMM_ARITH)
> DEF_RTL_EXPR(PRE_DEC, "pre_dec", "e", RTX_AUTOINC)
> DEF_RTL_EXPR(PRE_INC, "pre_inc", "e", RTX_AUTOINC)
> DEF_RTL_EXPR(POST_DEC, "post_dec", "e", RTX_AUTOINC)
> DEF_RTL_EXPR(POST_INC, "post_inc", "e", RTX_AUTOINC)
> DEF_RTL_EXPR(PRE_MODIFY, "pre_modify", "ee", RTX_AUTOINC)
> DEF_RTL_EXPR(POST_MODIFY, "post_modify", "ee", RTX_AUTOINC)
> DEF_RTL_EXPR(NE, "ne", "ee", RTX_COMM_COMPARE)
> DEF_RTL_EXPR(EQ, "eq", "ee", RTX_COMM_COMPARE)
> DEF_RTL_EXPR(GE, "ge", "ee", RTX_COMPARE)
> DEF_RTL_EXPR(GT, "gt", "ee", RTX_COMPARE)
> DEF_RTL_EXPR(LE, "le", "ee", RTX_COMPARE)
> DEF_RTL_EXPR(LT, "lt", "ee", RTX_COMPARE)
> DEF_RTL_EXPR(GEU, "geu", "ee", RTX_COMPARE)
> DEF_RTL_EXPR(GTU, "gtu", "ee", RTX_COMPARE)
> DEF_RTL_EXPR(LEU, "leu", "ee", RTX_COMPARE)
> DEF_RTL_EXPR(LTU, "ltu", "ee", RTX_COMPARE)
> DEF_RTL_EXPR(UNORDERED, "unordered", "ee", RTX_COMM_COMPARE)
> DEF_RTL_EXPR(ORDERED, "ordered", "ee", RTX_COMM_COMPARE)
> DEF_RTL_EXPR(UNEQ, "uneq", "ee", RTX_COMM_COMPARE)
> DEF_RTL_EXPR(UNGE, "unge", "ee", RTX_COMPARE)
> DEF_RTL_EXPR(UNGT, "ungt", "ee", RTX_COMPARE)
> DEF_RTL_EXPR(UNLE, "unle", "ee", RTX_COMPARE)
> DEF_RTL_EXPR(UNLT, "unlt", "ee", RTX_COMPARE)
> DEF_RTL_EXPR(LTGT, "ltgt", "ee", RTX_COMM_COMPARE)
> DEF_RTL_EXPR(SIGN_EXTEND, "sign_extend", "e", RTX_UNARY)
> DEF_RTL_EXPR(ZERO_EXTEND, "zero_extend", "e", RTX_UNARY)
> DEF_RTL_EXPR(TRUNCATE, "truncate", "e", RTX_UNARY)
> DEF_RTL_EXPR(FLOAT_EXTEND, "float_extend", "e", RTX_UNARY)
> DEF_RTL_EXPR(FLOAT_TRUNCATE, "float_truncate", "e", RTX_UNARY)
> DEF_RTL_EXPR(FLOAT, "float", "e", RTX_UNARY)
> DEF_RTL_EXPR(FIX, "fix", "e", RTX_UNARY)
> DEF_RTL_EXPR(UNSIGNED_FLOAT, "unsigned_float", "e", RTX_UNARY)
> DEF_RTL_EXPR(UNSIGNED_FIX, "unsigned_fix", "e", RTX_UNARY)
> DEF_RTL_EXPR(FRACT_CONVERT, "fract_convert", "e", RTX_UNARY)
> DEF_RTL_EXPR(UNSIGNED_FRACT_CONVERT, "unsigned_fract_convert", "e", RTX_UNARY)
> DEF_RTL_EXPR(SAT_FRACT, "sat_fract", "e", RTX_UNARY)
> DEF_RTL_EXPR(UNSIGNED_SAT_FRACT, "unsigned_sat_fract", "e", RTX_UNARY)
> DEF_RTL_EXPR(ABS, "abs", "e", RTX_UNARY)
> DEF_RTL_EXPR(SQRT, "sqrt", "e", RTX_UNARY)
> DEF_RTL_EXPR(BSWAP, "bswap", "e", RTX_UNARY)
> DEF_RTL_EXPR(FFS, "ffs", "e", RTX_UNARY)
> DEF_RTL_EXPR(CLZ, "clz", "e", RTX_UNARY)
> DEF_RTL_EXPR(CTZ, "ctz", "e", RTX_UNARY)
> DEF_RTL_EXPR(POPCOUNT, "popcount", "e", RTX_UNARY)
> DEF_RTL_EXPR(PARITY, "parity", "e", RTX_UNARY)
> DEF_RTL_EXPR(SIGN_EXTRACT, "sign_extract", "eee", RTX_BITFIELD_OPS)
> DEF_RTL_EXPR(ZERO_EXTRACT, "zero_extract", "eee", RTX_BITFIELD_OPS)
> DEF_RTL_EXPR(HIGH, "high", "e", RTX_CONST_OBJ)
> DEF_RTL_EXPR(LO_SUM, "lo_sum", "ee", RTX_OBJ)
> DEF_RTL_EXPR(VEC_MERGE, "vec_merge", "eee", RTX_TERNARY)
> DEF_RTL_EXPR(VEC_SELECT, "vec_select", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(VEC_CONCAT, "vec_concat", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(VEC_DUPLICATE, "vec_duplicate", "e", RTX_UNARY)
> DEF_RTL_EXPR(SS_PLUS, "ss_plus", "ee", RTX_COMM_ARITH)
> DEF_RTL_EXPR(US_PLUS, "us_plus", "ee", RTX_COMM_ARITH)
> DEF_RTL_EXPR(SS_MINUS, "ss_minus", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(SS_NEG, "ss_neg", "e", RTX_UNARY)
> DEF_RTL_EXPR(US_NEG, "us_neg", "e", RTX_UNARY)
> DEF_RTL_EXPR(SS_ABS, "ss_abs", "e", RTX_UNARY)
> DEF_RTL_EXPR(SS_ASHIFT, "ss_ashift", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(US_ASHIFT, "us_ashift", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(US_MINUS, "us_minus", "ee", RTX_BIN_ARITH)
> DEF_RTL_EXPR(SS_TRUNCATE, "ss_truncate", "e", RTX_UNARY)
> DEF_RTL_EXPR(US_TRUNCATE, "us_truncate", "e", RTX_UNARY)
> DEF_RTL_EXPR(VAR_LOCATION, "var_location", "tei", RTX_EXTRA)
> };
> #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
> #define NUM_RTX_CODE ARRAY_SIZE(defs)
> 
>  const char *formats[NUM_RTX_CODE];
> 
>  const char *type_from_format	(int);
>  const char *accessor_from_format	(int);
>  int special_format		(const char *);
>  void find_formats		(void);
>  void gendecl			(const char *);
> 
> 
>  const char *
> type_from_format (int c)
> {
>   switch (c)
>     {
>     case 'i':
>       return "int ";
> 
>     case 'w':
>       return "HOST_WIDE_INT ";
> 
>     case 's':
>       return "const char *";
> 
>     case 'e':  case 'u':
>       return "rtx ";
> 
>     case 'E':
>       return "rtvec ";
>     case 'b':
>       return "struct bitmap_head_def *";  /* bitmap - typedef not available */
>     case 't':
>       return "union tree_node *";  /* tree - typedef not available */
>     case 'B':
>       return "struct basic_block_def *";  /* basic block - typedef not available */
>     default:
>       gcc_unreachable ();
>     }
> }
> 
> /* Decode a format letter into the proper accessor function.  */
> 
>  const char *
> accessor_from_format (int c)
> {
>   switch (c)
>     {
>     case 'i':
>       return "XINT";
> 
>     case 'w':
>       return "XWINT";
> 
>     case 's':
>       return "XSTR";
> 
>     case 'e':  case 'u':
>       return "XEXP";
> 
>     case 'E':
>       return "XVEC";
> 
>     case 'b':
>       return "XBITMAP";
> 
>     case 't':
>       return "XTREE";
> 
>     case 'B':
>       return "XBBDEF";
> 
>     default:
>       gcc_unreachable ();
>     }
> }
> 
> 
> /* Place a list of all format specifiers we use into the array FORMAT.  */
> 
>  void
> find_formats (void)
> {
>   unsigned int i;
> 
>   for (i = 0; i < NUM_RTX_CODE; i++)
>     {
>       const char **f;
> 
>      if (strchr (defs[i].format, '*') != 0 || strchr (defs[i].format, 'V') != 0 || strchr (defs[i].format, 'S') != 0 || strchr (defs[i].format, 'n') != 0)
>        continue;
> 
>       for (f = formats; *f; f++)
> 	if (! strcmp (*f, defs[i].format))
> 	  break;
> 
>       if (*f == 0)
> 	*f = defs[i].format;
>     }
> }
> 
> /* Write the declarations for the routine to allocate RTL with FORMAT.  */
> 
>  void
> gendecl (const char *format)
> {
>   const char *p;
>   int i, pos;
> 
>   printf ("extern rtx gen_rtx_fmt_%s_stat\t (RTX_CODE, ", format);
>   printf ("enum machine_mode mode");
> 
>   /* Write each parameter that is needed and start a new line when the line
>      would overflow.  */
>   for (p = format, i = 0, pos = 75; *p != 0; p++)
>     if (*p != '0')
>       {
> 	int ourlen = strlen (type_from_format (*p)) + 6 + (i > 9);
> 
> 	printf (",");
> 	if (pos + ourlen > 76)
> 	  printf ("\n\t\t\t\t      "), pos = 39;
> 
> 	printf (" %sarg%d", type_from_format (*p), i++);
> 	pos += ourlen;
>       }
> }
> 
> 
> 
> /* This is the main program.  We accept only one argument, "-h", which
>    says we are writing the genrtl.h file.  Otherwise we are writing the
>    genrtl.c file.  */
> 
> int
> main (int argc, char **argv)
> {
>   find_formats ();
> 
>   const char **fmt;
> 
> 
>   for (fmt = formats; *fmt; ++fmt)
>     gendecl (*fmt);
> 
>   return 0;
> }


-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:07 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: kernel 2.6.32-5-parisc64 doesn't boot
Date: Mon, 28 Jun 2010 23:22:57 -0600
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+linux-parisc (seems like a known kernel issue)

On Wed, Jun 23, 2010 at 05:47:35PM +1200, Michal Ludvig wrote:
> Hi all,
> 
> After recent dist-upgrade in Squeeze my HP9000 RP3410 no longer boots. I
> can still boot the previous linux-image 2.6.32-3-parisc64 but the new
> 2.6.32-5-parisc64 never finished booting. It looks like it reboots
> during USB enumeration or somewhere there:

Hi Michal,
I strongly suspect it's the same problem we saw on the C3xxx workstations.
Here's the comment in drivers/parisc/sba_iommu.c:

        if (!is_pdc_pat()) {
                /* Shutdown the USB controller on Astro-based workstations.
                ** Once we reprogram the IOMMU, the next DMA performed by
                ** USB will HPMC the box. USB is only enabled if a
                ** keyboard is present and found.
                **
                ** With serial console, j6k v5.0 firmware says:
                **   mem_kbd hpa 0xfee003f8 sba 0x0 pad 0x0 cl_class 0x7
                **
                ** FIXME: Using GFX+USB console at power up but direct
                **      linux to serial console is still broken.
                **      USB could generate DMA so we must reset USB.
                **      The proper sequence would be:
                **      o block console output
                **      o reset USB device
                **      o reprogram serial port
                **      o unblock console output
                */
                if (PAGE0->mem_kbd.cl_class == CL_KEYBD) {
                        pdc_io_reset_devices();
                }

        }


Could you try to make this code "unconditional"?
(remove !is_pdc_pat() test)

If someone have better ideas on how to handle this...
I can build kernels and test on a J6000.

thanks,
grant

> 
> ------------------------------------
> 
> Booting...
> Boot IO Dependent Code (IODC) revision 1
> 
> 
> HARD Booted.
> palo ipl 1.14 root@penalosa Wed Oct  8 15:04:37 UTC 2008
> Skipping extended partition 6 - beyond reach of IPL
> 
> Partition Start(MB) End(MB) Id Type
> 1               1      31   f0 Palo
> 2              32     156   83 ext2
> 5             157   33408   83 ext2
> 
> PALO(F0) partition contains:
>     0/vmlinux64 6833698 bytes @ 0x48000
> 
> 
> Command line for kernel: 'root=/dev/sdb5 HOME=/ console=ttyS1
> palo_kernel=2/vmlinux'
> Selected kernel: /vmlinux from partition 2
> Selected ramdisk: /initrd.img from partition 2
> ELF64 executable
> Entry 00100000 first 00100000 n 2
> Segment 0 load 00100000 size 4673536 mediaptr 0x1000
> Segment 1 load 005ea730 size 743376 mediaptr 0x476730
> Loading ramdisk 11788317 bytes @ 3f4b0000...
> Branching to kernel entry point 0x00100000.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org
> 
> [    0.000000] Initializing cgroup subsys cpuset
> [    0.000000] Initializing cgroup subsys cpu
> [    0.000000] Linux version 2.6.32-5-parisc64 (Debian 2.6.32-15)
> (ben@decadent.org.uk) (gcc version 4.3.5 (GCC) ) #1 Tue Jun 1 12:13:09
> UTC 2010
> [    0.000000] unwind_init: start = 0x40494000, end = 0x404c1e60,
> entries = 11750
> [    0.000000] WARNING: Out of order unwind entry! 0000000040495990 and
> 00000000404959a0
> [    0.000000] WARNING: Out of order unwind entry! 00000000404959a0 and
> 00000000404959b0
> [    0.000000] FP[0] enabled: Rev 1 Model 20
> [    0.000000] The 64-bit Kernel has started...
> [    0.000000] bootconsole [ttyB0] enabled
> [    0.000000] Initialized PDC Console for debugging.
> [    0.000000] Determining PDC firmware type: 64 bit PAT.
> [    0.000000] model 00008860 00000491 00000000 00000002
> 3e3ffb8ecde69d7c 100000f0 00000008 000000b2 000000b2
> [    0.000000] vers  00000302
> [    0.000000] CPUID vers 20 rev 5 (0x00000285)
> [    0.000000] capabilities 0x35
> [    0.000000] model 9000/800/rp3410
> [    0.000000] parisc_cache_init: Only equivalent aliasing supported!
> [    0.000000] Memory Ranges:
> [    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size
>   1024 MB
> [    0.000000]  1) Start 0x0000004040000000 End 0x00000040ffdfffff Size
>   3070 MB
> [    0.000000] Total Memory: 4094 MB
> [    0.000000] initrd: 7f4b0000-7ffee01d
> [    0.000000] initrd: reserving 3f4b0000-3ffee01d (mem_max ffe00000)
> [    0.000000] Built 2 zonelists in Zone order, mobility grouping on.
> Total pages: 1033735
> [    0.000000] Kernel command line: root=/dev/sdb5 HOME=/ console=ttyS1
> palo_kernel=2/vmlinux
> [    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
> [    0.000000] Dentry cache hash table entries: 524288 (order: 10,
> 4194304 bytes)
> [    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152
> bytes)
> [    0.000000] Memory: 4102144k/4192256k available (2996k kernel code,
> 89144k reserved, 1519k data, 272k init)
> [    0.000000] virtual kernel memory layout:
> [    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000
> (1007 MB)
> [    0.000000]     memory  : 0x0000000040000000 - 0x000000413fe00000
> (266238 MB)
> [    0.000000]       .init : 0x000000004065c000 - 0x00000000406a0000   (
> 272 kB)
> [    0.000000]       .data : 0x00000000403ed080 - 0x0000000040568de0
> (1519 kB)
> [    0.000000]       .text : 0x0000000040100000 - 0x00000000403ed080
> (2996 kB)
> [    0.000000] SLUB: Genslabs=13, HWalign=64, Order=0-3, MinObjects=0,
> CPUs=1, Nodes=8
> [    0.000000] Hierarchical RCU implementation.
> [    0.000000] NR_IRQS:128
> [    0.000000] Console: colour dummy device 160x64
> [    0.012000] Calibrating delay loop... 1597.44 BogoMIPS (lpj=3194880)
> [    0.108000] Security Framework initialized
> [    0.108000] SELinux:  Disabled at boot.
> [    0.108000] Mount-cache hash table entries: 256
> [    0.108000] Initializing cgroup subsys ns
> [    0.108000] Initializing cgroup subsys cpuacct
> [    0.112000] Initializing cgroup subsys devices
> [    0.116000] Initializing cgroup subsys freezer
> [    0.120000] Initializing cgroup subsys net_cls
> [    0.120000] devtmpfs: initialized
> [    0.128000] regulator: core version 0.5
> [    0.128000] NET: Registered protocol family 16
> [    0.132000] EISA bus registered
> [    0.136000] Searching for devices...
> [    0.356000] Found devices:
> [    0.356000] 1. Storm Peak Slow DC- at 0xfffffffffe780000 [128] { 0,
> 0x0, 0x886, 0x00004 }
> [    0.356000] 2. Everest Mako Memory at 0xfffffffffed08000 [8] { 1,
> 0x0, 0x0af, 0x00009 }
> [    0.356000] 3. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12,
> 0x0, 0x880, 0x0000c }
> [    0.364000] 4. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13,
> 0x0, 0x783, 0x0000a }
> [    0.372000] 5. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13,
> 0x0, 0x783, 0x0000a }
> [    0.376000] 6. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13,
> 0x0, 0x783, 0x0000a }
> [    0.384000] 7. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13,
> 0x0, 0x783, 0x0000a }
> [    0.392000] 8. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13,
> 0x0, 0x783, 0x0000a }
> [    0.392000] 9. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13,
> 0x0, 0x783, 0x0000a }
> [    0.400000] 10. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13,
> 0x0, 0x783, 0x0000a }
> [    0.408000] 11. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15,
> 0x0, 0x004, 0x000c0 }
> [    0.412000] Enabling PDC_PAT chassis codes support v0.05
> [    1.268000] CPU(s): 1 x PA8800 (Mako) at 800.024500 MHz
> [    1.272000] Setting cache flush threshold to 135cec0 (1 CPUs online)
> [    1.324000] SBA found Pluto 2.3 at 0xfffffffffed00000
> [    1.384000] Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
> [    1.420000] pci 0000:00:01.0: PME# supported from D0 D1 D2 D3hot
> [    1.420000] pci 0000:00:01.0: PME# disabled
> [    1.420000] pci 0000:00:01.1: PME# supported from D0 D1 D2 D3hot
> [    1.420000] pci 0000:00:01.1: PME# disabled
> [    1.432000] pci 0000:00:01.2: PME# supported from D0 D1 D2 D3hot
> [    1.432000] pci 0000:00:01.2: PME# disabled
> [    1.448000] Mercury version TR3.2 (0x32) found at 0xfffffffffed22000
> [    1.484000] pci 0000:20:02.0: PME# supported from D3hot D3cold
> [    1.488000] pci 0000:20:02.0: PME# disabled
> [    1.492000] Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
> [    1.536000] Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
> [    1.584000] Mercury version TR3.2 (0x32) found at 0xfffffffffed28000
> [    1.632000] Mercury version TR3.2 (0x32) found at 0xfffffffffed2c000
> [    1.680000] Mercury version TR3.2 (0x32) found at 0xfffffffffed2e000
> [    1.720000] LBA: Truncating lmmio_space
> [fffffffff0000000/fffffffffecffffe] to [fffffffff0000000,fffffffffe77ffff]
> [    1.724000] powersw: Soft power switch support not available.
> [    1.728000] bio: create slab <bio-0> at 0
> [    1.728000] vgaarb: device added:
> PCI:0000:e0:02.0,decodes=io+mem,owns=io+mem,locks=none
> [    1.728000] vgaarb: loaded
> [    1.736000] Switching to clocksource cr16
> [    1.736000] NET: Registered protocol family 2
> [    1.736000] IP route cache hash table entries: 131072 (order: 8,
> 1048576 bytes)
> [    1.744000] TCP established hash table entries: 262144 (order: 10,
> 4194304 bytes)
> [    1.756000] TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
> [    1.760000] TCP: Hash tables configured (established 262144 bind 65536)
> [    1.760000] TCP reno registered
> [    1.764000] NET: Registered protocol family 1
> [    1.788000] Unpacking initramfs...
> [    2.532000] Freeing initrd memory: 11512k freed
> [    2.536000] Chassis warnings not supported.
> [    2.536000] Performance monitoring counters enabled for Storm Peak
> Slow DC-
> [    2.536000] audit: initializing netlink socket (disabled)
> [    2.540000] type=2000 audit(1277259537.537:1): initialized
> [    2.552000] VFS: Disk quotas dquot_6.5.2
> [    2.552000] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
> [    2.560000] msgmni has been set to 8036
> [    2.560000] alg: No test for stdrng (krng)
> [    2.560000] Block layer SCSI generic (bsg) driver version 0.4 loaded
> (major 253)
> [    2.564000] io scheduler noop registered
> [    2.564000] io scheduler anticipatory registered
> [    2.572000] io scheduler deadline registered
> [    2.572000] io scheduler cfq registered (default)
> [    2.584000] PDC Stable Storage facility v0.30
> [    2.672000] STI GSC/PCI core graphics driver Version 0.9a
> [    2.676000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> [    2.684000] 0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 74)
> is a 16450
> [    2.692000] 0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 74)
> is a 16550A
> [    2.692000] console [ttyS1] enabled, bootconsole disabled
> [    2.692000] console [ttyS1] enabled, bootconsole disabled
> [    2.696000] 0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 74)
> is a 16550A
> [    2.704000] 0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 74)
> is a 16550A
> [    2.712000] mice: PS/2 mouse device common for all mice
> [    2.712000] rtc-generic rtc-generic: rtc core: registered rtc-generic
> as rtc0
> [    2.720000] TCP cubic registered
> [    2.720000] NET: Registered protocol family 17
> [    2.724000] registered taskstats version 1
> [    2.740000] rtc-generic rtc-generic: setting system clock to
> 2010-06-23 02:18:58 UTC (1277259538)
> [    2.916000] Freeing unused kernel memory: 272k freed
> Loading, please wait...
> [    3.580000] udev: starting version 157
> [    4.492000] SCSI subsystem initialized
> [    4.692000] usbcore: registered new interface driver usbfs
> [    4.692000] usbcore: registered new interface driver hub
> [    4.692000] usbcore: registered new device driver usb
> [    4.940000] tg3.c:v3.102 (September 1, 2009)
> [    5.016000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [    5.044000] ehci_hcd 0000:00:01.2: EHCI Host Controller
> [    5.064000] ehci_hcd 0000:00:01.2: new USB bus registered, assigned
> bus number 1
> [    5.088000] ehci_hcd 0000:00:01.2: Enabling legacy PCI PM
> [    5.112000] ehci_hcd 0000:00:01.2: irq 67, io mem 0xffffffff80000000
> [    5.128000] ehci_hcd 0000:00:01.2: USB 2.0 started, EHCI 0.95
> [    5.128000] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
> [    5.128000] usb usb1: New USB device strings: Mfr=3, Product=2,
> SerialNumber=1
> [    5.136000] usb usb1: Product: EHCI Host Controller
> [    5.136000] usb usb1: Manufacturer: Linux 2.6.32-5-parisc64 ehci_hcd
> [    5.144000] usb usb1: SerialNumber: 0000:00:01.2
> [    5.196000] usb usb1: configuration #1 chosen from 1 choice
> [    5.196000] hub 1-0:1.0: USB hub found
> [    5.196000] hub 1-0:1.0: 5 ports detected
> 
> 
> 
> Firmware Version  46.34
> 
> Duplex Console IO Dependent Code (IODC) revision 1
> 
> 
> 
> Firmware Version  46.34
> 
> Duplex Console IO Dependent Code (IODC) revision 1
> ------------------------------------------------------------------------------
>    (c) Copyright 1995-2004, Hewlett-Packard Company, All rights reserved
> ------------------------------------------------------------------------------
> 
>   Processor   Speed            State           CoProcessor State  Cache Size
>   Number                                       State              Inst
>   Data
>   ---------  --------   ---------------------  -----------------
> ------------
>       0      800  MHz   Active                 Functional
> 33554432 33554432
>       1      800  MHz   Stopped:Deconfigured   Unknown            0 0
> 
>   Central Bus Speed (in MHz)  :        200
>   Available Memory            :    4194304  KB
>   Good Memory Required        : Not initialized. Defaults to 32 MB.
> 
>    Primary boot path:    0/1/1/0.1
>    Alternate boot path:  0/1/1/0.0
>    Console path:         0/7/1/1.0
>    Keyboard path:        0/0/4/0.0
> 
> 
> Processor is booting from the first available device.
> 
> To discontinue, press any key within 10 seconds.
> 
> Boot terminated.
> 
> ------------------------------------
> 
> It kept trying and failing/rebooting at the same point a couple of times.
> 
> Do you need any other information? I'm now back on 2.6.32-3 but am keen
> to run any test kernels.
> 
> Michal
> 
> 
> -- 
> To UNSUBSCRIBE, email to debian-hppa-REQUEST@lists.debian.org
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From - Thu Nov 08 21:06:08 2018
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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] parisc: set ARCH_KMALLOC_MINALIGN
Date: Tue, 29 Jun 2010 15:50:50 +0900
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This is a resend:

http://marc.info/?t=127432584100006&r=1&w=2

I thought that it was merged but seems that it was lost somewhere?

=
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Subject: [PATCH] parisc: set ARCH_KMALLOC_MINALIGN

Architectures that handle DMA-non-coherent memory need to set
ARCH_KMALLOC_MINALIGN to make sure that kmalloc'ed buffer is DMA-safe:
the buffer doesn't share a cache with the others.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: stable@kernel.org
---
 arch/parisc/include/asm/cache.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
index 45effe6..5d87f27 100644
--- a/arch/parisc/include/asm/cache.h
+++ b/arch/parisc/include/asm/cache.h
@@ -22,6 +22,8 @@
 #define L1_CACHE_SHIFT 5
 #endif
 
+#define ARCH_KMALLOC_MINALIGN	L1_CACHE_BYTES
+
 #ifndef __ASSEMBLY__
 
 #define L1_CACHE_ALIGN(x)       (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
-- 
1.6.5

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From - Thu Nov 08 21:06:08 2018
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From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH] parisc: remove homegrown L1_CACHE_ALIGN macro
Date: Tue, 29 Jun 2010 16:29:04 +0900
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Let's use the standard L1_CACHE_ALIGN macro instead.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 arch/parisc/include/asm/cache.h |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
index 45effe6..a050f9f 100644
--- a/arch/parisc/include/asm/cache.h
+++ b/arch/parisc/include/asm/cache.h
@@ -24,8 +24,6 @@
 
 #ifndef __ASSEMBLY__
 
-#define L1_CACHE_ALIGN(x)       (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
-
 #define SMP_CACHE_BYTES L1_CACHE_BYTES
 
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
-- 
1.6.5


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From: Matt Turner <mattst88@gmail.com>
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Subject: Re: [PATCH] parisc: set ARCH_KMALLOC_MINALIGN
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On Tue, Jun 29, 2010 at 2:50 AM, FUJITA Tomonori
<fujita.tomonori@lab.ntt.co.jp> wrote:
> This is a resend:
>
> http://marc.info/?t=3D127432584100006&r=3D1&w=3D2
>
> I thought that it was merged but seems that it was lost somewhere?
>
> =3D
> From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> Subject: [PATCH] parisc: set ARCH_KMALLOC_MINALIGN
>
> Architectures that handle DMA-non-coherent memory need to set
> ARCH_KMALLOC_MINALIGN to make sure that kmalloc'ed buffer is DMA-safe=
:
> the buffer doesn't share a cache with the others.
>
> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: Helge Deller <deller@gmx.de>
> Cc: James E.J. Bottomley <jejb@parisc-linux.org>
> Cc: stable@kernel.org
> ---
> =A0arch/parisc/include/asm/cache.h | =A0 =A02 ++
> =A01 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/as=
m/cache.h
> index 45effe6..5d87f27 100644
> --- a/arch/parisc/include/asm/cache.h
> +++ b/arch/parisc/include/asm/cache.h
> @@ -22,6 +22,8 @@
> =A0#define L1_CACHE_SHIFT 5
> =A0#endif
>
> +#define ARCH_KMALLOC_MINALIGN =A0L1_CACHE_BYTES
> +
> =A0#ifndef __ASSEMBLY__
>
> =A0#define L1_CACHE_ALIGN(x) =A0 =A0 =A0 (((x)+(L1_CACHE_BYTES-1))&~(=
L1_CACHE_BYTES-1))

Looks like you can send a patch to kill L1_CACHE_ALIGN too. :)

> --
> 1.6.5
>
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On Tue, Jun 29, 2010 at 10:07 AM, Matt Turner <mattst88@gmail.com> wrot=
e:
> On Tue, Jun 29, 2010 at 2:50 AM, FUJITA Tomonori
> <fujita.tomonori@lab.ntt.co.jp> wrote:
>> This is a resend:
>>
>> http://marc.info/?t=3D127432584100006&r=3D1&w=3D2
>>
>> I thought that it was merged but seems that it was lost somewhere?
>>
>> =3D
>> From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
>> Subject: [PATCH] parisc: set ARCH_KMALLOC_MINALIGN
>>
>> Architectures that handle DMA-non-coherent memory need to set
>> ARCH_KMALLOC_MINALIGN to make sure that kmalloc'ed buffer is DMA-saf=
e:
>> the buffer doesn't share a cache with the others.
>>
>> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
>> Cc: Kyle McMartin <kyle@mcmartin.ca>
>> Cc: Helge Deller <deller@gmx.de>
>> Cc: James E.J. Bottomley <jejb@parisc-linux.org>
>> Cc: stable@kernel.org
>> ---
>> =A0arch/parisc/include/asm/cache.h | =A0 =A02 ++
>> =A01 files changed, 2 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/a=
sm/cache.h
>> index 45effe6..5d87f27 100644
>> --- a/arch/parisc/include/asm/cache.h
>> +++ b/arch/parisc/include/asm/cache.h
>> @@ -22,6 +22,8 @@
>> =A0#define L1_CACHE_SHIFT 5
>> =A0#endif
>>
>> +#define ARCH_KMALLOC_MINALIGN =A0L1_CACHE_BYTES
>> +
>> =A0#ifndef __ASSEMBLY__
>>
>> =A0#define L1_CACHE_ALIGN(x) =A0 =A0 =A0 (((x)+(L1_CACHE_BYTES-1))&~=
(L1_CACHE_BYTES-1))
>
> Looks like you can send a patch to kill L1_CACHE_ALIGN too. :)

Doh! I see you already did.

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>>
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.parisc
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Hi Tim, Tim, folks,

Update on -ffunction-sections status:

I re-tested linux-2.6.35-rc4 today.

Most of work needed for -ffunction-sections -fdata-sections
is already in this kernel. This mail explains what is
still missing.

In order to have a working kernel with this make invocation:

	make KCFLAGS="-ffunction-sections -fdata-sections"

linux-2.6.35-rc4 needs three patches:

* modpost fix for 64k+ sections: linux-2.6.35-rc4-fs.modpost.patch
  This patch is in -mm, it still not reach mainline...

* fix for kernel linker stripts: linux-2.6.35-rc4-fs.fix-kernel-linker-scripts.patch
  It makes _all_ linker scripts -ffunction/data-sections safe via:
  -       *(.data)
  +       *(.data .data.*)
  
* fix for module linker script: linux-2.6.35-rc4-fs.fix-ko-module-linker-script.patch
  Prevents kernel modules from having unnecessarily many
  sections and thus prevents module size growth.


Then, in order to also garbage-collect the sections, I added

LDFLAGS_vmlinux += --gc-sections

in top-level Makefile.

This requires the additional patch (linux-2.6.35-rc4-fsgs.patch)
which adds KEEP(section) directives to kernel linker stripts.
Otherwise, linker will discard some crucial sections.


All four patches are attached.

I am sending this email from the machine which runs the kernel
built with -ffunction-sections -fdata-sections --gc-sections.

-- 
vda

--Boundary-00=_1exQMv9z7xuz/lL
Content-Type: text/x-diff;
  charset="us-ascii";
  name="linux-2.6.35-rc4-fs.modpost.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename="linux-2.6.35-rc4-fs.modpost.patch"

--- linux-2.6.35-rc4/scripts/mod/file2alias.c
+++ linux-2.6.35-rc4-fs.obj1/scripts/mod/file2alias.c
@@ -884,16 +884,16 @@
 	char *zeros = NULL;
 
 	/* We're looking for a section relative symbol */
-	if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum)
+	if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
 		return;
 
 	/* Handle all-NULL symbols allocated into .bss */
-	if (info->sechdrs[sym->st_shndx].sh_type & SHT_NOBITS) {
+	if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
 		zeros = calloc(1, sym->st_size);
 		symval = zeros;
 	} else {
 		symval = (void *)info->hdr
-			+ info->sechdrs[sym->st_shndx].sh_offset
+			+ info->sechdrs[get_secindex(info, sym)].sh_offset
 			+ sym->st_value;
 	}
 
--- linux-2.6.35-rc4/scripts/mod/modpost.c
+++ linux-2.6.35-rc4-fs.obj1/scripts/mod/modpost.c
@@ -253,7 +253,7 @@
 	return export_unknown;
 }
 
-static enum export export_from_sec(struct elf_info *elf, Elf_Section sec)
+static enum export export_from_sec(struct elf_info *elf, unsigned int sec)
 {
 	if (sec == elf->export_sec)
 		return export_plain;
@@ -373,6 +373,8 @@
 	Elf_Ehdr *hdr;
 	Elf_Shdr *sechdrs;
 	Elf_Sym  *sym;
+	const char *secstrings;
+	unsigned int symtab_idx = ~0U, symtab_shndx_idx = ~0U;
 
 	hdr = grab_file(filename, &info->size);
 	if (!hdr) {
@@ -417,8 +419,19 @@
 		return 0;
 	}
 
+	/* Fixup for more than 64k sections */
+	info->num_sections = hdr->e_shnum;
+	if (info->num_sections == 0) { /* more than 64k sections? */
+		/* note: it doesn't need shndx2secindex() */
+		info->num_sections = TO_NATIVE(sechdrs[0].sh_size);
+	}
+	info->secindex_strings = hdr->e_shstrndx;
+	if (info->secindex_strings == SHN_XINDEX)
+		info->secindex_strings =
+		    shndx2secindex(TO_NATIVE(sechdrs[0].sh_link));
+
 	/* Fix endianness in section headers */
-	for (i = 0; i < hdr->e_shnum; i++) {
+	for (i = 0; i < info->num_sections; i++) {
 		sechdrs[i].sh_name      = TO_NATIVE(sechdrs[i].sh_name);
 		sechdrs[i].sh_type      = TO_NATIVE(sechdrs[i].sh_type);
 		sechdrs[i].sh_flags     = TO_NATIVE(sechdrs[i].sh_flags);
@@ -431,9 +444,8 @@
 		sechdrs[i].sh_entsize   = TO_NATIVE(sechdrs[i].sh_entsize);
 	}
 	/* Find symbol table. */
-	for (i = 1; i < hdr->e_shnum; i++) {
-		const char *secstrings
-			= (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
+	secstrings = (void *)hdr + sechdrs[info->secindex_strings].sh_offset;
+	for (i = 1; i < info->num_sections; i++) {
 		const char *secname;
 		int nobits = sechdrs[i].sh_type == SHT_NOBITS;
 
@@ -461,14 +473,26 @@
 		else if (strcmp(secname, "__ksymtab_gpl_future") == 0)
 			info->export_gpl_future_sec = i;
 
-		if (sechdrs[i].sh_type != SHT_SYMTAB)
-			continue;
+		if (sechdrs[i].sh_type == SHT_SYMTAB) {
+			unsigned int sh_link_idx;
+			symtab_idx = i;
+			info->symtab_start = (void *)hdr +
+			    sechdrs[i].sh_offset;
+			info->symtab_stop  = (void *)hdr +
+			    sechdrs[i].sh_offset + sechdrs[i].sh_size;
+			sh_link_idx = shndx2secindex(sechdrs[i].sh_link);
+			info->strtab       = (void *)hdr +
+			    sechdrs[sh_link_idx].sh_offset;
+		}
 
-		info->symtab_start = (void *)hdr + sechdrs[i].sh_offset;
-		info->symtab_stop  = (void *)hdr + sechdrs[i].sh_offset
-			                         + sechdrs[i].sh_size;
-		info->strtab       = (void *)hdr +
-			             sechdrs[sechdrs[i].sh_link].sh_offset;
+		/* 32bit section no. table? ("more than 64k sections") */
+		if (sechdrs[i].sh_type == SHT_SYMTAB_SHNDX) {
+			symtab_shndx_idx = i;
+			info->symtab_shndx_start = (void *)hdr +
+			    sechdrs[i].sh_offset;
+			info->symtab_shndx_stop  = (void *)hdr +
+			    sechdrs[i].sh_offset + sechdrs[i].sh_size;
+		}
 	}
 	if (!info->symtab_start)
 		fatal("%s has no symtab?\n", filename);
@@ -480,6 +504,21 @@
 		sym->st_value = TO_NATIVE(sym->st_value);
 		sym->st_size  = TO_NATIVE(sym->st_size);
 	}
+
+	if (symtab_shndx_idx != ~0U) {
+		Elf32_Word *p;
+		if (symtab_idx !=
+		    shndx2secindex(sechdrs[symtab_shndx_idx].sh_link))
+			fatal("%s: SYMTAB_SHNDX has bad sh_link: %u!=%u\n",
+			      filename,
+			      shndx2secindex(sechdrs[symtab_shndx_idx].sh_link),
+			      symtab_idx);
+		/* Fix endianness */
+		for (p = info->symtab_shndx_start; p < info->symtab_shndx_stop;
+		     p++)
+			*p = TO_NATIVE(*p);
+	}
+
 	return 1;
 }
 
@@ -514,7 +553,7 @@
 			       Elf_Sym *sym, const char *symname)
 {
 	unsigned int crc;
-	enum export export = export_from_sec(info, sym->st_shndx);
+	enum export export = export_from_sec(info, get_secindex(info, sym));
 
 	switch (sym->st_shndx) {
 	case SHN_COMMON:
@@ -656,19 +695,19 @@
 		return "(unknown)";
 }
 
-static const char *sec_name(struct elf_info *elf, int shndx)
+static const char *sec_name(struct elf_info *elf, int secindex)
 {
 	Elf_Shdr *sechdrs = elf->sechdrs;
 	return (void *)elf->hdr +
-	        elf->sechdrs[elf->hdr->e_shstrndx].sh_offset +
-	        sechdrs[shndx].sh_name;
+		elf->sechdrs[elf->secindex_strings].sh_offset +
+		sechdrs[secindex].sh_name;
 }
 
 static const char *sech_name(struct elf_info *elf, Elf_Shdr *sechdr)
 {
 	return (void *)elf->hdr +
-	        elf->sechdrs[elf->hdr->e_shstrndx].sh_offset +
-	        sechdr->sh_name;
+		elf->sechdrs[elf->secindex_strings].sh_offset +
+		sechdr->sh_name;
 }
 
 /* if sym is empty or point to a string
@@ -1047,11 +1086,14 @@
 	Elf_Sym *near = NULL;
 	Elf64_Sword distance = 20;
 	Elf64_Sword d;
+	unsigned int relsym_secindex;
 
 	if (relsym->st_name != 0)
 		return relsym;
+
+	relsym_secindex = get_secindex(elf, relsym);
 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
-		if (sym->st_shndx != relsym->st_shndx)
+		if (get_secindex(elf, sym) != relsym_secindex)
 			continue;
 		if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
 			continue;
@@ -1113,9 +1155,9 @@
 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
 		const char *symsec;
 
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
-		symsec = sec_name(elf, sym->st_shndx);
+		symsec = sec_name(elf, get_secindex(elf, sym));
 		if (strcmp(symsec, sec) != 0)
 			continue;
 		if (!is_valid_name(elf, sym))
@@ -1311,7 +1353,7 @@
 	const char *tosec;
 	const struct sectioncheck *mismatch;
 
-	tosec = sec_name(elf, sym->st_shndx);
+	tosec = sec_name(elf, get_secindex(elf, sym));
 	mismatch = section_mismatch(fromsec, tosec);
 	if (mismatch) {
 		Elf_Sym *to;
@@ -1339,7 +1381,7 @@
 				    Elf_Shdr *sechdr, Elf_Rela *r)
 {
 	Elf_Shdr *sechdrs = elf->sechdrs;
-	int section = sechdr->sh_info;
+	int section = shndx2secindex(sechdr->sh_info);
 
 	return (void *)elf->hdr + sechdrs[section].sh_offset +
 		r->r_offset - sechdrs[section].sh_addr;
@@ -1447,7 +1489,7 @@
 		r.r_addend = TO_NATIVE(rela->r_addend);
 		sym = elf->symtab_start + r_sym;
 		/* Skip special sections */
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
 		check_section_mismatch(modname, elf, &r, sym, fromsec);
 	}
@@ -1505,7 +1547,7 @@
 		}
 		sym = elf->symtab_start + r_sym;
 		/* Skip special sections */
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
 		check_section_mismatch(modname, elf, &r, sym, fromsec);
 	}
@@ -1530,7 +1572,7 @@
 	Elf_Shdr *sechdrs = elf->sechdrs;
 
 	/* Walk through all sections */
-	for (i = 0; i < elf->hdr->e_shnum; i++) {
+	for (i = 0; i < elf->num_sections; i++) {
 		check_section(modname, elf, &elf->sechdrs[i]);
 		/* We want to process only relocation sections and not .init */
 		if (sechdrs[i].sh_type == SHT_RELA)
--- linux-2.6.35-rc4/scripts/mod/modpost.h
+++ linux-2.6.35-rc4-fs.obj1/scripts/mod/modpost.h
@@ -129,7 +129,50 @@
 	const char   *strtab;
 	char	     *modinfo;
 	unsigned int modinfo_len;
+
+	/* support for 32bit section numbers */
+
+	unsigned int num_sections; /* max_secindex + 1 */
+	unsigned int secindex_strings;
+	/* if Nth symbol table entry has .st_shndx = SHN_XINDEX,
+	 * take shndx from symtab_shndx_start[N] instead */
+	Elf32_Word   *symtab_shndx_start;
+	Elf32_Word   *symtab_shndx_stop;
 };
+
+static inline int is_shndx_special(unsigned int i)
+{
+	return i != SHN_XINDEX && i >= SHN_LORESERVE && i <= SHN_HIRESERVE;
+}
+
+/* shndx is in [0..SHN_LORESERVE) U (SHN_HIRESERVE, 0xfffffff], thus:
+ * shndx == 0               <=> sechdrs[0]
+ * ......
+ * shndx == SHN_LORESERVE-1 <=> sechdrs[SHN_LORESERVE-1]
+ * shndx == SHN_HIRESERVE+1 <=> sechdrs[SHN_LORESERVE]
+ * shndx == SHN_HIRESERVE+2 <=> sechdrs[SHN_LORESERVE+1]
+ * ......
+ * fyi: sym->st_shndx is uint16, SHN_LORESERVE = ff00, SHN_HIRESERVE = ffff,
+ * so basically we map  0000..feff -> 0000..feff
+ *                      ff00..ffff -> (you are a bad boy, dont do it)
+ *                     10000..xxxx -> ff00..(xxxx-0x100)
+ */
+static inline unsigned int shndx2secindex(unsigned int i)
+{
+	if (i <= SHN_HIRESERVE)
+		return i;
+	return i - (SHN_HIRESERVE + 1 - SHN_LORESERVE);
+}
+
+/* Accessor for sym->st_shndx, hides ugliness of "64k sections" */
+static inline unsigned int get_secindex(const struct elf_info *info,
+					const Elf_Sym *sym)
+{
+	if (sym->st_shndx != SHN_XINDEX)
+		return sym->st_shndx;
+	return shndx2secindex(info->symtab_shndx_start[sym -
+						       info->symtab_start]);
+}
 
 /* file2alias.c */
 extern unsigned int cross_build;

--Boundary-00=_1exQMv9z7xuz/lL
Content-Type: text/x-diff;
  charset="us-ascii";
  name="linux-2.6.35-rc4-fs.fix-kernel-linker-scripts.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename="linux-2.6.35-rc4-fs.fix-kernel-linker-scripts.patch"

--- linux-2.6.35-rc4/arch/alpha/boot/bootloader.lds
+++ linux-2.6.35-rc4.new/arch/alpha/boot/bootloader.lds
@@ -4,17 +4,17 @@
 SECTIONS
 {
   . = 0x20000000;
-  .text : { *(.text) }
+  .text : { *(.text .text.*) }
   _etext = .;
   PROVIDE (etext = .);
-  .rodata : { *(.rodata) *(.rodata.*) }
-  .data : { *(.data) CONSTRUCTORS }
+  .rodata : { *(.rodata .rodata.*) }
+  .data : { *(.data .data.*) CONSTRUCTORS }
   .got : { *(.got) }
   .sdata : { *(.sdata) }
   _edata = .;
   PROVIDE (edata = .);
   .sbss : { *(.sbss) *(.scommon) }
-  .bss : { *(.bss) *(COMMON) }
+  .bss : { *(.bss .bss.*) *(COMMON) }
   _end = . ;
   PROVIDE (end = .);
 
--- linux-2.6.35-rc4/arch/arm/boot/bootp/bootp.lds
+++ linux-2.6.35-rc4.new/arch/arm/boot/bootp/bootp.lds
@@ -15,7 +15,7 @@
   .text : {
    _stext = .;
    *(.start)
-   *(.text)
+   *(.text .text.*)
    initrd_size = initrd_end - initrd_start;
    _etext = .;
   }
--- linux-2.6.35-rc4/arch/arm/boot/compressed/vmlinux.lds.in
+++ linux-2.6.35-rc4.new/arch/arm/boot/compressed/vmlinux.lds.in
@@ -29,12 +29,10 @@
   .text : {
     _start = .;
     *(.start)
-    *(.text)
-    *(.text.*)
+    *(.text .text.*)
     *(.fixup)
     *(.gnu.warning)
-    *(.rodata)
-    *(.rodata.*)
+    *(.rodata .rodata.*)
     *(.glue_7)
     *(.glue_7t)
     *(.piggydata)
--- linux-2.6.35-rc4/arch/arm/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4.new/arch/arm/kernel/vmlinux.lds.S
@@ -95,8 +95,7 @@
 			*(.fixup)
 #endif
 			*(.gnu.warning)
-			*(.rodata)
-			*(.rodata.*)
+			*(.rodata .rodata.*)
 			*(.glue_7)
 			*(.glue_7t)
 		*(.got)			/* Global offset table		*/
--- linux-2.6.35-rc4/arch/cris/boot/compressed/decompress_v10.lds
+++ linux-2.6.35-rc4.new/arch/cris/boot/compressed/decompress_v10.lds
@@ -12,19 +12,18 @@
 	.text :
 	{
 		_stext = . ;
-		*(.text)
-		*(.rodata)
-		*(.rodata.*)
+		*(.text .text.*)
+		*(.rodata .rodata.*)
 		_etext = . ;
 	} > dram
 	.data :
 	{
-		*(.data)
+		*(.data .data.*)
 		_edata = . ;
 	} > dram
 	.bss :
 	{
-		*(.bss)
+		*(.bss .bss.*)
 		_end = ALIGN( 0x10 ) ;
 	} > dram
 }
--- linux-2.6.35-rc4/arch/cris/boot/compressed/decompress_v32.lds
+++ linux-2.6.35-rc4.new/arch/cris/boot/compressed/decompress_v32.lds
@@ -12,19 +12,18 @@
 	.text :
 	{
 		_stext = . ;
-		*(.text)
-		*(.rodata)
-		*(.rodata.*)
+		*(.text .text.*)
+		*(.rodata .rodata.*)
 		_etext = . ;
 	} > dram
 	.data :
 	{
-		*(.data)
+		*(.data .data.*)
 		_edata = . ;
 	} > dram
 	.bss :
 	{
-		*(.bss)
+		*(.bss .bss.*)
 		_end = ALIGN( 0x10 ) ;
 	} > dram
 }
--- linux-2.6.35-rc4/arch/cris/boot/rescue/rescue_v10.lds
+++ linux-2.6.35-rc4.new/arch/cris/boot/rescue/rescue_v10.lds
@@ -9,12 +9,12 @@
 	.text :
 	{
 		stext = . ;
-		*(.text)
+		*(.text .text.*)
 		etext = . ;
 	} > flash
 	.data :
 	{
-		*(.data)
+		*(.data .data.*)
 		edata = . ;
 	} > flash
 }
--- linux-2.6.35-rc4/arch/cris/boot/rescue/rescue_v32.lds
+++ linux-2.6.35-rc4.new/arch/cris/boot/rescue/rescue_v32.lds
@@ -16,21 +16,20 @@
 	.text :
 	{
 		_stext = . ;
-		*(.text)
+		*(.text .text.*)
 		*(.init.text)
-		*(.rodata)
-		*(.rodata.*)
+		*(.rodata .rodata.*)
 		_etext = . ;
 	} > bootblk
 	.data :
 	{
-		*(.data)
+		*(.data .data.*)
 		_edata = . ;
 	} > bootblk
 	.bss :
 	{
 		_bss = . ;
-		*(.bss)
+		*(.bss .bss.*)
 		_end = ALIGN( 0x10 ) ;
 	} > intmem
 
--- linux-2.6.35-rc4/arch/frv/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4.new/arch/frv/kernel/vmlinux.lds.S
@@ -114,7 +114,7 @@
 
   .sbss		: { *(.sbss .sbss.*) }
   .bss		: { *(.bss .bss.*) }
-  .bss..stack	: { *(.bss) }
+  .bss..stack	: { *(.bss) } /* BUG??? we already absorbed it into .bss */
 
   __bss_stop = .;
   _end = . ;
--- linux-2.6.35-rc4/arch/h8300/boot/compressed/vmlinux.lds
+++ linux-2.6.35-rc4.new/arch/h8300/boot/compressed/vmlinux.lds
@@ -5,13 +5,13 @@
         __stext = . ;
 	__text = .;
 	       *(.text..startup)
-	       *(.text)
+	       *(.text .text.*)
         __etext = . ;
         }
 
 	.rodata :
 	{
-		*(.rodata)
+		*(.rodata .rodata.*)
 	}
         .data :
 
--- linux-2.6.35-rc4/arch/h8300/boot/compressed/vmlinux.scr
+++ linux-2.6.35-rc4.new/arch/h8300/boot/compressed/vmlinux.scr
@@ -3,7 +3,7 @@
   .data : {
 	_input_len = .;
 	LONG(_input_data_end - _input_data) _input_data = .;
-	*(.data)
+	*(.data .data.*)
 	_input_data_end = .;
 	}
 }
--- linux-2.6.35-rc4/arch/ia64/hp/sim/boot/bootloader.lds
+++ linux-2.6.35-rc4.new/arch/ia64/hp/sim/boot/bootloader.lds
@@ -7,13 +7,13 @@
   . = 0x100000;
 
   _text = .;
-  .text : { *(__ivt_section) *(.text) }
+  .text : { *(__ivt_section) *(.text .text.*) }
   _etext = .;
 
   /* Global data */
   _data = .;
-  .rodata : { *(.rodata) *(.rodata.*) }
-  .data    : { *(.data) *(.gnu.linkonce.d*) CONSTRUCTORS }
+  .rodata : { *(.rodata .rodata.*) }
+  .data    : { *(.data .data.*) *(.gnu.linkonce.d*) CONSTRUCTORS }
   __gp = ALIGN (8) + 0x200000;
   .got           : { *(.got.plt) *(.got) }
   /* We want the small data sections together, so single-instruction offsets
@@ -24,7 +24,7 @@
 
   __bss_start = .;
   .sbss      : { *(.sbss) *(.scommon) }
-  .bss       : { *(.bss) *(COMMON) }
+  .bss       : { *(.bss .bss.*) *(COMMON) }
   . = ALIGN(64 / 8);
   __bss_stop = .;
   _end = . ;
--- linux-2.6.35-rc4/arch/ia64/kernel/gate.lds.S
+++ linux-2.6.35-rc4.new/arch/ia64/kernel/gate.lds.S
@@ -54,10 +54,10 @@
 	.IA_64.unwind_info	: { *(.IA_64.unwind_info*) }
 	.IA_64.unwind		: { *(.IA_64.unwind*) }	:readable	:unwind
 #ifdef HAVE_BUGGY_SEGREL
-	.text (GATE_ADDR + PAGE_SIZE) : { *(.text) *(.text.*) }	:readable
+	.text (GATE_ADDR + PAGE_SIZE) : { *(.text .text.*) }	:readable
 #else
 	. = ALIGN(PERCPU_PAGE_SIZE) + (. & (PERCPU_PAGE_SIZE - 1));
-	.text			: { *(.text) *(.text.*) }	:epc
+	.text			: { *(.text .text.*) }	:epc
 #endif
 
 	/DISCARD/		: {
--- linux-2.6.35-rc4/arch/ia64/scripts/check-segrel.lds
+++ linux-2.6.35-rc4.new/arch/ia64/scripts/check-segrel.lds
@@ -1,9 +1,9 @@
 SECTIONS {
 	. = SIZEOF_HEADERS;
-	.rodata : { *(.rodata) } :ro
+	.rodata : { *(.rodata .rodata.*) } :ro
 	.note : { *(.note*) }
 	. = 0xa0000;
-	.data : { *(.data) } :dat
+	.data : { *(.data .data.*) } :dat
 	/DISCARD/ : { *(*) }
 }
 PHDRS {
--- linux-2.6.35-rc4/arch/m32r/boot/compressed/vmlinux.lds.S
+++ linux-2.6.35-rc4.new/arch/m32r/boot/compressed/vmlinux.lds.S
@@ -6,12 +6,12 @@
   . = CONFIG_MEMORY_START + 0x00400000;
 
   _text = .;
-  .text : { *(.text) } = 0
-  .rodata : { *(.rodata) *(.rodata.*) }
+  .text : { *(.text .text.*) } = 0
+  .rodata : { *(.rodata .rodata.*) }
   _etext = .;
 
   . = ALIGN(32 / 8);
-  .data : { *(.data) }
+  .data : { *(.data .data.*) }
   . = ALIGN(32 / 8);
   _got = .;
   .got  : { *(.got) _egot = .; *(.got.*) }
@@ -19,7 +19,7 @@
 
   . = ALIGN(32 / 8);
   __bss_start = .;
-  .bss : { *(.bss) *(.sbss) }
+  .bss : { *(.bss .bss.*) *(.sbss) }
   . = ALIGN(32 / 8);
   _ebss = .;
   . = ALIGN(4096);
--- linux-2.6.35-rc4/arch/m32r/boot/compressed/vmlinux.scr
+++ linux-2.6.35-rc4.new/arch/m32r/boot/compressed/vmlinux.scr
@@ -2,7 +2,7 @@
 {
   .data : {
 	zimage_data = .;
-	*(.data)
+	*(.data .data.*)
 	zimage_data_end = .;
 	}
   zimage_len = zimage_data_end - zimage_data;
--- linux-2.6.35-rc4/arch/m68knommu/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4.new/arch/m68knommu/kernel/vmlinux.lds.S
@@ -75,7 +75,7 @@
 		*(__ex_table)
 		__stop___ex_table = .;
 
-		*(.rodata) *(.rodata.*)
+		*(.rodata .rodata.*)
 		*(__vermagic)		/* Kernel version magic */
 		*(__markers_strings)
 		*(.rodata1)
@@ -168,7 +168,7 @@
 	.bss : {
 		. = ALIGN(4);
 		_sbss = . ;
-		*(.bss)
+		*(.bss .bss.*)
 		*(COMMON)
 		. = ALIGN(4) ;
 		_ebss = . ;
--- linux-2.6.35-rc4/arch/mips/lasat/image/romscript.normal
+++ linux-2.6.35-rc4.new/arch/mips/lasat/image/romscript.normal
@@ -11,7 +11,7 @@
 
   .data ALIGN(0x10) :
   {
-    *(.data)
+    *(.data .data.*)
   }
   _image_start = ADDR(.data);
   _image_size = SIZEOF(.data);
--- linux-2.6.35-rc4/arch/mn10300/boot/compressed/vmlinux.lds
+++ linux-2.6.35-rc4.new/arch/mn10300/boot/compressed/vmlinux.lds
@@ -3,7 +3,7 @@
   .data : {
 	input_len = .;
 	LONG(input_data_end - input_data) input_data = .;
-	*(.data)
+	*(.data .data.*)
 	input_data_end = .;
 	}
 }
--- linux-2.6.35-rc4/arch/parisc/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4.new/arch/parisc/kernel/vmlinux.lds.S
@@ -111,7 +111,7 @@
 		*(.data..vm0.pte)
 	}
 	.bss : {
-		*(.bss)
+		*(.bss .bss.*)
 		*(COMMON)
 	}
 	__bss_stop = .;
--- linux-2.6.35-rc4/arch/powerpc/boot/zImage.coff.lds.S
+++ linux-2.6.35-rc4.new/arch/powerpc/boot/zImage.coff.lds.S
@@ -6,7 +6,7 @@
   _start = .;
   .text      :
   {
-    *(.text)
+    *(.text .text.*)
     *(.fixup)
   }
   _etext = .;
@@ -40,7 +40,7 @@
   .bss       :
   {
    *(.sbss)
-   *(.bss)
+   *(.bss .bss.*)
   }
   _end = . ;
 
--- linux-2.6.35-rc4/arch/powerpc/boot/zImage.lds.S
+++ linux-2.6.35-rc4.new/arch/powerpc/boot/zImage.lds.S
@@ -6,7 +6,7 @@
   _start = .;
   .text      :
   {
-    *(.text)
+    *(.text .text.*)
     *(.fixup)
   }
   _etext = .;
@@ -44,7 +44,7 @@
   .bss       :
   {
    *(.sbss)
-   *(.bss)
+   *(.bss .bss.*)
   }
   . = ALIGN(4096);
   _end = . ;
--- linux-2.6.35-rc4/arch/powerpc/boot/zImage.ps3.lds.S
+++ linux-2.6.35-rc4.new/arch/powerpc/boot/zImage.ps3.lds.S
@@ -20,7 +20,7 @@
   _start = .;
   .text      :
   {
-    *(.text)
+    *(.text .text.*)
     *(.fixup)
   }
   _etext = .;
@@ -43,7 +43,7 @@
   .bss       :
   {
    *(.sbss)
-   *(.bss)
+   *(.bss .bss.*)
   }
   . = ALIGN(4096);
   _end = . ;
--- linux-2.6.35-rc4/arch/sh/boot/compressed/vmlinux.scr
+++ linux-2.6.35-rc4.new/arch/sh/boot/compressed/vmlinux.scr
@@ -3,7 +3,7 @@
   .rodata..compressed : {
 	input_len = .;
 	LONG(input_data_end - input_data) input_data = .;
-	*(.data)
+	*(.data .data.*)
 	output_len = . - 4;
 	input_data_end = .;
 	}
--- linux-2.6.35-rc4/arch/sh/kernel/vsyscall/vsyscall.lds.S
+++ linux-2.6.35-rc4.new/arch/sh/kernel/vsyscall/vsyscall.lds.S
@@ -35,7 +35,7 @@
 	 */
 	. = 0x400;
 
-	.text		: { *(.text) } 			:text	=0x90909090
+	.text		: { *(.text .text.*) }		:text	=0x90909090
 	.note		: { *(.note.*) }		:text	:note
 	.eh_frame_hdr	: { *(.eh_frame_hdr ) }		:text	:eh_frame_hdr
 	.eh_frame	: {
--- linux-2.6.35-rc4/arch/x86/boot/setup.ld
+++ linux-2.6.35-rc4.new/arch/x86/boot/setup.ld
@@ -20,7 +20,7 @@
 	.initdata	: { *(.initdata) }
 	__end_init = .;
 
-	.text		: { *(.text) }
+	.text		: { *(.text .text.*) }
 	.text32		: { *(.text32) }
 
 	. = ALIGN(16);
@@ -45,7 +45,7 @@
 	.bss		:
 	{
 		__bss_start = .;
-		*(.bss)
+		*(.bss .bss.*)
 		__bss_end = .;
 	}
 	. = ALIGN(16);
--- linux-2.6.35-rc4/arch/x86/kernel/acpi/realmode/wakeup.lds.S
+++ linux-2.6.35-rc4.new/arch/x86/kernel/acpi/realmode/wakeup.lds.S
@@ -41,7 +41,7 @@
 	. = ALIGN(16);
 	.bss :	{
 		__bss_start = .;
-		*(.bss)
+		*(.bss .bss.*)
 		__bss_end = .;
 	}
 
--- linux-2.6.35-rc4/arch/x86/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4.new/arch/x86/kernel/vmlinux.lds.S
@@ -306,7 +306,7 @@
 	.bss : AT(ADDR(.bss) - LOAD_OFFSET) {
 		__bss_start = .;
 		*(.bss..page_aligned)
-		*(.bss)
+		*(.bss .bss.*)
 		. = ALIGN(4);
 		__bss_stop = .;
 	}
--- linux-2.6.35-rc4/arch/xtensa/boot/boot-elf/boot.lds.S
+++ linux-2.6.35-rc4.new/arch/xtensa/boot/boot-elf/boot.lds.S
@@ -10,19 +10,19 @@
 	{
 		__reloc_start = . ;
 		_text_start = . ;
-		*(.literal .text.literal .text)
+		*(.literal .text.literal .text .text.*)
 		_text_end = . ;
 	}
 
 	.rodata ALIGN(0x04):
 	{
-		*(.rodata)
+		*(.rodata .rodata.*)
 		*(.rodata1)
 	}
 
 	.data ALIGN(0x04):
 	{
-		*(.data)
+		*(.data .data.*)
 		*(.data1)
 		*(.sdata)
 		*(.sdata2)
@@ -57,7 +57,7 @@
 		*(.sbss)
 		*(.scommon)
 		*(.dynbss)
-		*(.bss)
+		*(.bss .bss.*)
 		__bss_end = .;
 	}
 	_end = .;
--- linux-2.6.35-rc4/arch/xtensa/boot/boot-redboot/boot.ld
+++ linux-2.6.35-rc4.new/arch/xtensa/boot/boot-redboot/boot.ld
@@ -8,19 +8,19 @@
 	{
 		__reloc_start = . ;
 		_text_start = . ;
-		*(.literal .text.literal .text)
+		*(.literal .text.literal .text .text.*)
 		_text_end = . ;
 	}
 
 	.rodata ALIGN(0x04):
 	{
-		*(.rodata)
+		*(.rodata .rodata.*)
 		*(.rodata1)
 	}
 
 	.data ALIGN(0x04):
 	{
-		*(.data)
+		*(.data .data.*)
 		*(.data1)
 		*(.sdata)
 		*(.sdata2)
@@ -55,7 +55,7 @@
 		*(.sbss)
 		*(.scommon)
 		*(.dynbss)
-		*(.bss)
+		*(.bss .bss.*)
 		__bss_end = .;
 	}
 	_end = .;
--- linux-2.6.35-rc4/include/asm-generic/vmlinux.lds.h
+++ linux-2.6.35-rc4.new/include/asm-generic/vmlinux.lds.h
@@ -140,9 +140,21 @@
 #define TRACE_SYSCALLS()
 #endif
 
+/* .data.foo are generated by gcc itself with -fdata-sections,
+ * whereas double-dot sections (like .data..percpu) are generated
+ * by kernel's magic macros.
+ *
+ * arch/.../vmlinux.lds.S decides where to place various double-dot sections
+ * as needed by its arch, here DATA_DATA needs to be careful and collect
+ * only .data and .data.foo sections, skipping .data..foo
+ *
+ * Same goes for .text, .bss and .rodata. In case of .rodata, various
+ * .rodata.foo sections are generated by gcc even without -fdata-sections
+ */
+
 /* .data section */
 #define DATA_DATA							\
-	*(.data)							\
+	*(.data .data.[A-Za-z0-9_$^]*)					\
 	*(.ref.data)							\
 	DEV_KEEP(init.data)						\
 	DEV_KEEP(exit.data)						\
@@ -202,7 +214,7 @@
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
 		VMLINUX_SYMBOL(__start_rodata) = .;			\
-		*(.rodata) *(.rodata.*)					\
+		*(.rodata .rodata.[A-Za-z0-9_$^]*)			\
 		*(__vermagic)		/* Kernel version magic */	\
 		*(__markers_strings)	/* Markers: strings */		\
 		*(__tracepoints_strings)/* Tracepoints: strings */	\
@@ -501,7 +513,7 @@
 	.bss : AT(ADDR(.bss) - LOAD_OFFSET) {				\
 		*(.bss..page_aligned)					\
 		*(.dynbss)						\
-		*(.bss)							\
+		*(.bss .bss.[A-Za-z0-9_$^]*)				\
 		*(COMMON)						\
 	}
 

--Boundary-00=_1exQMv9z7xuz/lL
Content-Type: text/x-diff;
  charset="us-ascii";
  name="linux-2.6.35-rc4-fs.fix-ko-module-linker-script.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename="linux-2.6.35-rc4-fs.fix-ko-module-linker-script.patch"

--- linux-2.6.35-rc4/scripts/module-common.lds
+++ linux-2.6.35-rc4.new/scripts/module-common.lds
@@ -3,6 +3,29 @@
  * Archs are free to supply their own linker scripts.  ld will
  * combine them automatically.
  */
+
+/* .data.foo are generated by gcc itself with -fdata-sections,
+ * whereas double-dot sections (like .data..percpu) are generated
+ * by kernel's magic macros.
+ *
+ * Since this script does not specify what to do with double-dot sections,
+ * ld -r will coalesce all .data..foo input sections into one .data..foo
+ * output section, all .data..bar input sections into one .data..bar
+ * output section and so on. This is exactly what we want.
+ *
+ * Same goes for .text, .bss and .rodata. In case of .rodata, various
+ * .rodata.foo sections are generated by gcc even without -fdata-sections
+ */
+
 SECTIONS {
+
+	/* Coalesce sections produced by gcc -ffunction-sections */
+	.text   0 : AT(0) { *(.text .text.[A-Za-z0-9_$^]*) }
+
+	/* Coalesce sections produced by gcc -fdata-sections */
+	.rodata 0 : AT(0) { *(.rodata .rodata.[A-Za-z0-9_$^]*) }
+	.data   0 : AT(0) { *(.data .data.[A-Za-z0-9_$^]*) }
+	.bss    0 : AT(0) { *(.bss .bss.[A-Za-z0-9_$^]*) }
+
 	/DISCARD/ : { *(.discard) }
 }

--Boundary-00=_1exQMv9z7xuz/lL
Content-Type: text/x-diff;
  charset="us-ascii";
  name="linux-2.6.35-rc4-fsgs.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename="linux-2.6.35-rc4-fsgs.patch"

--- linux-2.6.35-rc4.fs/Makefile
+++ linux-2.6.35-rc4-fsgs.obj/Makefile
@@ -610,6 +610,8 @@
 LDFLAGS_vmlinux	+= $(call ld-option, -X,)
 endif
 
+LDFLAGS_vmlinux += --gc-sections
+
 # Default kernel image to build when no specific target is given.
 # KBUILD_IMAGE may be overruled on the command line or
 # set in the environment
@@ -705,7 +707,7 @@
 # Rule to link vmlinux - also used during CONFIG_KALLSYMS
 # May be overridden by arch/$(ARCH)/Makefile
 quiet_cmd_vmlinux__ ?= LD      $@
-      cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \
+      cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ -Map $@.ldmap \
       -T $(vmlinux-lds) $(vmlinux-init)                          \
       --start-group $(vmlinux-main) --end-group                  \
       $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^)
--- linux-2.6.35-rc4.fs/arch/arm/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/arm/kernel/vmlinux.lds.S
@@ -157,7 +157,7 @@
 		. = ALIGN(32);
 		__start___ex_table = .;
 #ifdef CONFIG_MMU
-		*(__ex_table)
+		KEEP(*(__ex_table))
 #endif
 		__stop___ex_table = .;
 
--- linux-2.6.35-rc4.fs/arch/blackfin/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/blackfin/kernel/vmlinux.lds.S
@@ -51,7 +51,7 @@
 
 		. = ALIGN(16);
 		___start___ex_table = .;
-		*(__ex_table)
+		KEEP(*(__ex_table))
 		___stop___ex_table = .;
 
 		__etext = .;
--- linux-2.6.35-rc4.fs/arch/cris/boot/rescue/rescue_v32.lds
+++ linux-2.6.35-rc4-fsgs.obj/arch/cris/boot/rescue/rescue_v32.lds
@@ -36,7 +36,7 @@
 	/* Get rid of stuff from EXPORT_SYMBOL(foo). */
 	/DISCARD/ :
 	{
-	        *(__ksymtab_strings)
-	        *(__ksymtab)
+		KEEP(*(__ksymtab_strings))
+		*(__ksymtab)
 	}
 }
--- linux-2.6.35-rc4.fs/arch/cris/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/cris/kernel/vmlinux.lds.S
@@ -72,7 +72,7 @@
 	.init.setup : { INIT_SETUP(16) }
 #ifdef CONFIG_ETRAX_ARCH_V32
 	__start___param = .;
-	__param : { *(__param) }
+	__param : { KEEP(*(__param)) }
 	__stop___param = .;
 #endif
 	.initcall.init : {
@@ -88,7 +88,7 @@
 #ifdef CONFIG_BLK_DEV_INITRD
 	.init.ramfs : {
 		__initramfs_start = .;
-		*(.init.ramfs)
+		KEEP(*(.init.ramfs))
 		__initramfs_end = .;
 	}
 #endif
--- linux-2.6.35-rc4.fs/arch/h8300/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/h8300/kernel/vmlinux.lds.S
@@ -112,7 +112,7 @@
 	. = ALIGN(0x4) ;
 	INIT_SETUP(0x4)
 	___setup_start = .;
-		*(.init.setup)
+		KEEP(*(.init.setup))
 	. = ALIGN(0x4) ;
 	___setup_end = .;
 	INIT_CALLS
--- linux-2.6.35-rc4.fs/arch/m68knommu/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/m68knommu/kernel/vmlinux.lds.S
@@ -72,7 +72,7 @@
 
 		. = ALIGN(16);          /* Exception table              */
 		__start___ex_table = .;
-		*(__ex_table)
+		KEEP(*(__ex_table))
 		__stop___ex_table = .;
 
 		*(.rodata .rodata.*)
@@ -129,16 +129,16 @@
 
 		/* Kernel symbol table: GPL-future symbols */
 		__start___kcrctab_gpl_future = .;
-		*(__kcrctab_gpl_future)
+		KEEP(*(__kcrctab_gpl_future))
 		__stop___kcrctab_gpl_future = .;
 
 		/* Kernel symbol table: strings */
-		*(__ksymtab_strings)
+		KEEP(*(__ksymtab_strings))
 
 		/* Built-in module parameters */
 		. = ALIGN(4) ;
 		__start___param = .;
-		*(__param)
+		KEEP(*(__param))
 		__stop___param = .;
 
 		. = ALIGN(4) ;
--- linux-2.6.35-rc4.fs/arch/microblaze/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/microblaze/kernel/vmlinux.lds.S
@@ -122,7 +122,7 @@
 
 	.init.ramfs ALIGN(4096) : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
 		__initramfs_start = .;
-		*(.init.ramfs)
+		KEEP(*(.init.ramfs))
 		__initramfs_end = .;
 		. = ALIGN(4);
 		LONG(0);
--- linux-2.6.35-rc4.fs/arch/mn10300/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/mn10300/kernel/vmlinux.lds.S
@@ -51,7 +51,7 @@
   . = ALIGN(PAGE_SIZE);
   .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
   	__smp_locks = .;
-	*(.smp_locks)
+	KEEP(*(.smp_locks))
 	__smp_locks_end = .;
   }
 
@@ -62,9 +62,9 @@
   INIT_DATA_SECTION(16)
   . = ALIGN(4);
   __alt_instructions = .;
-  .altinstructions : { *(.altinstructions) }
+  .altinstructions : { KEEP(*(.altinstructions)) }
   __alt_instructions_end = .;
- .altinstr_replacement : { *(.altinstr_replacement) }
+ .altinstr_replacement : { KEEP(*(.altinstr_replacement)) }
   /* .exit.text is discard at runtime, not link time, to deal with references
      from .altinstructions and .eh_frame */
 	.exit.text : { EXIT_TEXT; }
--- linux-2.6.35-rc4.fs/arch/um/include/asm/common.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/um/include/asm/common.lds.S
@@ -76,10 +76,10 @@
   . = ALIGN(4);
   .altinstructions : {
 	__alt_instructions = .;
-	*(.altinstructions)
+	KEEP(*(.altinstructions))
 	__alt_instructions_end = .;
   }
-  .altinstr_replacement : { *(.altinstr_replacement) }
+  .altinstr_replacement : { KEEP(*(.altinstr_replacement)) }
   /* .exit.text is discard at runtime, not link time, to deal with references
      from .altinstructions and .eh_frame */
   .exit.text : { *(.exit.text) }
--- linux-2.6.35-rc4.fs/arch/x86/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/x86/kernel/vmlinux.lds.S
@@ -162,46 +162,46 @@
 
 	. = VSYSCALL_ADDR;
 	.vsyscall_0 : AT(VLOAD(.vsyscall_0)) {
-		*(.vsyscall_0)
+		KEEP(*(.vsyscall_0))
 	} :user
 
 	. = ALIGN(L1_CACHE_BYTES);
 	.vsyscall_fn : AT(VLOAD(.vsyscall_fn)) {
-		*(.vsyscall_fn)
+		KEEP(*(.vsyscall_fn))
 	}
 
 	. = ALIGN(L1_CACHE_BYTES);
 	.vsyscall_gtod_data : AT(VLOAD(.vsyscall_gtod_data)) {
-		*(.vsyscall_gtod_data)
+		KEEP(*(.vsyscall_gtod_data))
 	}
 
 	vsyscall_gtod_data = VVIRT(.vsyscall_gtod_data);
 	.vsyscall_clock : AT(VLOAD(.vsyscall_clock)) {
-		*(.vsyscall_clock)
+		KEEP(*(.vsyscall_clock))
 	}
 	vsyscall_clock = VVIRT(.vsyscall_clock);
 
 
 	.vsyscall_1 ADDR(.vsyscall_0) + 1024: AT(VLOAD(.vsyscall_1)) {
-		*(.vsyscall_1)
+		KEEP(*(.vsyscall_1))
 	}
 	.vsyscall_2 ADDR(.vsyscall_0) + 2048: AT(VLOAD(.vsyscall_2)) {
-		*(.vsyscall_2)
+		KEEP(*(.vsyscall_2))
 	}
 
 	.vgetcpu_mode : AT(VLOAD(.vgetcpu_mode)) {
-		*(.vgetcpu_mode)
+		KEEP(*(.vgetcpu_mode))
 	}
 	vgetcpu_mode = VVIRT(.vgetcpu_mode);
 
 	. = ALIGN(L1_CACHE_BYTES);
 	.jiffies : AT(VLOAD(.jiffies)) {
-		*(.jiffies)
+		KEEP(*(.jiffies))
 	}
 	jiffies = VVIRT(.jiffies);
 
 	.vsyscall_3 ADDR(.vsyscall_0) + 3072: AT(VLOAD(.vsyscall_3)) {
-		*(.vsyscall_3)
+		KEEP(*(.vsyscall_3))
 	}
 
 	. = __vsyscall_0 + PAGE_SIZE;
@@ -252,12 +252,12 @@
 	. = ALIGN(8);
 	.altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
 		__alt_instructions = .;
-		*(.altinstructions)
+		KEEP(*(.altinstructions))
 		__alt_instructions_end = .;
 	}
 
 	.altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
-		*(.altinstr_replacement)
+		KEEP(*(.altinstr_replacement))
 	}
 
 	/*
@@ -290,7 +290,7 @@
 	. = ALIGN(PAGE_SIZE);
 	.smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
 		__smp_locks = .;
-		*(.smp_locks)
+		KEEP(*(.smp_locks))
 		. = ALIGN(PAGE_SIZE);
 		__smp_locks_end = .;
 	}
--- linux-2.6.35-rc4.fs/arch/x86/vdso/vdso-layout.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/x86/vdso/vdso-layout.lds.S
@@ -34,8 +34,8 @@
 	      *(.gnu.linkonce.b.*)
 	}
 
-	.altinstructions	: { *(.altinstructions) }
-	.altinstr_replacement	: { *(.altinstr_replacement) }
+	.altinstructions	: { KEEP(*(.altinstructions)) }
+	.altinstr_replacement	: { KEEP(*(.altinstr_replacement)) }
 
 	/*
 	 * Align the actual code well away from the non-instruction data.
--- linux-2.6.35-rc4.fs/include/asm-generic/vmlinux.lds.h
+++ linux-2.6.35-rc4-fsgs.obj/include/asm-generic/vmlinux.lds.h
@@ -229,25 +229,25 @@
 	/* PCI quirks */						\
 	.pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start_pci_fixups_early) = .;		\
-		*(.pci_fixup_early)					\
+		KEEP(*(.pci_fixup_early))				\
 		VMLINUX_SYMBOL(__end_pci_fixups_early) = .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_header) = .;		\
-		*(.pci_fixup_header)					\
+		KEEP(*(.pci_fixup_header))				\
 		VMLINUX_SYMBOL(__end_pci_fixups_header) = .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_final) = .;		\
-		*(.pci_fixup_final)					\
+		KEEP(*(.pci_fixup_final))				\
 		VMLINUX_SYMBOL(__end_pci_fixups_final) = .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_enable) = .;		\
-		*(.pci_fixup_enable)					\
+		KEEP(*(.pci_fixup_enable))				\
 		VMLINUX_SYMBOL(__end_pci_fixups_enable) = .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_resume) = .;		\
-		*(.pci_fixup_resume)					\
+		KEEP(*(.pci_fixup_resume))				\
 		VMLINUX_SYMBOL(__end_pci_fixups_resume) = .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .;	\
-		*(.pci_fixup_resume_early)				\
+		KEEP(*(.pci_fixup_resume_early))			\
 		VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .;	\
 		VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .;		\
-		*(.pci_fixup_suspend)					\
+		KEEP(*(.pci_fixup_suspend))				\
 		VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .;		\
 	}								\
 									\
@@ -270,76 +270,76 @@
 	/* Kernel symbol table: Normal symbols */			\
 	__ksymtab         : AT(ADDR(__ksymtab) - LOAD_OFFSET) {		\
 		VMLINUX_SYMBOL(__start___ksymtab) = .;			\
-		*(__ksymtab)						\
+		KEEP(*(__ksymtab))					\
 		VMLINUX_SYMBOL(__stop___ksymtab) = .;			\
 	}								\
 									\
 	/* Kernel symbol table: GPL-only symbols */			\
 	__ksymtab_gpl     : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start___ksymtab_gpl) = .;		\
-		*(__ksymtab_gpl)					\
+		KEEP(*(__ksymtab_gpl))					\
 		VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .;		\
 	}								\
 									\
 	/* Kernel symbol table: Normal unused symbols */		\
 	__ksymtab_unused  : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start___ksymtab_unused) = .;		\
-		*(__ksymtab_unused)					\
+		KEEP(*(__ksymtab_unused))				\
 		VMLINUX_SYMBOL(__stop___ksymtab_unused) = .;		\
 	}								\
 									\
 	/* Kernel symbol table: GPL-only unused symbols */		\
 	__ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
 		VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .;	\
-		*(__ksymtab_unused_gpl)					\
+		KEEP(*(__ksymtab_unused_gpl))				\
 		VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .;	\
 	}								\
 									\
 	/* Kernel symbol table: GPL-future-only symbols */		\
 	__ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
 		VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .;	\
-		*(__ksymtab_gpl_future)					\
+		KEEP(*(__ksymtab_gpl_future))				\
 		VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .;	\
 	}								\
 									\
 	/* Kernel symbol table: Normal symbols */			\
 	__kcrctab         : AT(ADDR(__kcrctab) - LOAD_OFFSET) {		\
 		VMLINUX_SYMBOL(__start___kcrctab) = .;			\
-		*(__kcrctab)						\
+		KEEP(*(__kcrctab))					\
 		VMLINUX_SYMBOL(__stop___kcrctab) = .;			\
 	}								\
 									\
 	/* Kernel symbol table: GPL-only symbols */			\
 	__kcrctab_gpl     : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start___kcrctab_gpl) = .;		\
-		*(__kcrctab_gpl)					\
+		KEEP(*(__kcrctab_gpl))					\
 		VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .;		\
 	}								\
 									\
 	/* Kernel symbol table: Normal unused symbols */		\
 	__kcrctab_unused  : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start___kcrctab_unused) = .;		\
-		*(__kcrctab_unused)					\
+		KEEP(*(__kcrctab_unused))				\
 		VMLINUX_SYMBOL(__stop___kcrctab_unused) = .;		\
 	}								\
 									\
 	/* Kernel symbol table: GPL-only unused symbols */		\
 	__kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
 		VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .;	\
-		*(__kcrctab_unused_gpl)					\
+		KEEP(*(__kcrctab_unused_gpl))				\
 		VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .;	\
 	}								\
 									\
 	/* Kernel symbol table: GPL-future-only symbols */		\
 	__kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
 		VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .;	\
-		*(__kcrctab_gpl_future)					\
+		KEEP(*(__kcrctab_gpl_future))				\
 		VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .;	\
 	}								\
 									\
 	/* Kernel symbol table: strings */				\
         __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) {	\
-		*(__ksymtab_strings)					\
+		KEEP(*(__ksymtab_strings))				\
 	}								\
 									\
 	/* __*init sections */						\
@@ -356,7 +356,7 @@
 	/* Built-in module parameters. */				\
 	__param : AT(ADDR(__param) - LOAD_OFFSET) {			\
 		VMLINUX_SYMBOL(__start___param) = .;			\
-		*(__param)						\
+		KEEP(*(__param))					\
 		VMLINUX_SYMBOL(__stop___param) = .;			\
 		. = ALIGN((align));					\
 		VMLINUX_SYMBOL(__end_rodata) = .;			\
@@ -371,7 +371,7 @@
 #define SECURITY_INIT							\
 	.security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \
 		VMLINUX_SYMBOL(__security_initcall_start) = .;		\
-		*(.security_initcall.init) 				\
+		KEEP(*(.security_initcall.init))			\
 		VMLINUX_SYMBOL(__security_initcall_end) = .;		\
 	}
 
@@ -424,7 +424,7 @@
 #endif
 
 /* Section used for early init (in .S files) */
-#define HEAD_TEXT  *(.head.text)
+#define HEAD_TEXT  KEEP(*(.head.text))
 
 #define HEAD_TEXT_SECTION							\
 	.head.text : AT(ADDR(.head.text) - LOAD_OFFSET) {		\
@@ -438,7 +438,7 @@
 	. = ALIGN(align);						\
 	__ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {		\
 		VMLINUX_SYMBOL(__start___ex_table) = .;			\
-		*(__ex_table)						\
+		KEEP(*(__ex_table))					\
 		VMLINUX_SYMBOL(__stop___ex_table) = .;			\
 	}
 
@@ -591,29 +591,29 @@
 #define INIT_SETUP(initsetup_align)					\
 		. = ALIGN(initsetup_align);				\
 		VMLINUX_SYMBOL(__setup_start) = .;			\
-		*(.init.setup)						\
+		KEEP(*(.init.setup))					\
 		VMLINUX_SYMBOL(__setup_end) = .;
 
 #define INITCALLS							\
-	*(.initcallearly.init)						\
+	KEEP(*(.initcallearly.init))					\
 	VMLINUX_SYMBOL(__early_initcall_end) = .;			\
-  	*(.initcall0.init)						\
-  	*(.initcall0s.init)						\
-  	*(.initcall1.init)						\
-  	*(.initcall1s.init)						\
-  	*(.initcall2.init)						\
-  	*(.initcall2s.init)						\
-  	*(.initcall3.init)						\
-  	*(.initcall3s.init)						\
-  	*(.initcall4.init)						\
-  	*(.initcall4s.init)						\
-  	*(.initcall5.init)						\
-  	*(.initcall5s.init)						\
-	*(.initcallrootfs.init)						\
-  	*(.initcall6.init)						\
-  	*(.initcall6s.init)						\
-  	*(.initcall7.init)						\
-  	*(.initcall7s.init)
+	KEEP(*(.initcall0.init))					\
+	KEEP(*(.initcall0s.init))					\
+	KEEP(*(.initcall1.init))					\
+	KEEP(*(.initcall1s.init))					\
+	KEEP(*(.initcall2.init))					\
+	KEEP(*(.initcall2s.init))					\
+	KEEP(*(.initcall3.init))					\
+	KEEP(*(.initcall3s.init))					\
+	KEEP(*(.initcall4.init))					\
+	KEEP(*(.initcall4s.init))					\
+	KEEP(*(.initcall5.init))					\
+	KEEP(*(.initcall5s.init))					\
+	KEEP(*(.initcallrootfs.init))					\
+	KEEP(*(.initcall6.init))					\
+	KEEP(*(.initcall6s.init))					\
+	KEEP(*(.initcall7.init))					\
+	KEEP(*(.initcall7s.init))
 
 #define INIT_CALLS							\
 		VMLINUX_SYMBOL(__initcall_start) = .;			\
@@ -622,19 +622,19 @@
 
 #define CON_INITCALL							\
 		VMLINUX_SYMBOL(__con_initcall_start) = .;		\
-		*(.con_initcall.init)					\
+		KEEP(*(.con_initcall.init))				\
 		VMLINUX_SYMBOL(__con_initcall_end) = .;
 
 #define SECURITY_INITCALL						\
 		VMLINUX_SYMBOL(__security_initcall_start) = .;		\
-		*(.security_initcall.init)				\
+		KEEP(*(.security_initcall.init))			\
 		VMLINUX_SYMBOL(__security_initcall_end) = .;
 
 #ifdef CONFIG_BLK_DEV_INITRD
 #define INIT_RAM_FS							\
 	. = ALIGN(PAGE_SIZE);						\
 	VMLINUX_SYMBOL(__initramfs_start) = .;				\
-	*(.init.ramfs)							\
+	KEEP(*(.init.ramfs))						\
 	VMLINUX_SYMBOL(__initramfs_end) = .;
 #else
 #define INIT_RAM_FS

--Boundary-00=_1exQMv9z7xuz/lL--

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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.cross-arch
Subject: Re: Testing of function/data-sections on linux-2.6.35-rc4
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On Sun, Jul 18, 2010 at 17:03, Denys Vlasenko <vda.linux@googlemail.com=
> wrote:
> I am sending this email from the machine which runs the kernel
> built with -ffunction-sections -fdata-sections --gc-sections.

(sorry for the previous HTML-email)

=46or the record, what are the metrics of this kernel vs. the standard =
one?

Gr{oetje,eeting}s,

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 =C2=A0=C2=A0 -- Linus Torvalds
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From - Thu Nov 08 21:06:08 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: BUG: soft lockup - CPU#0 stuck for 61s! [stty:11381]
Date: Sun, 18 Jul 2010 15:01:21 -0400
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I had this lockup a few days ago with vanilla UP 64-bit 2.6.34.1 kernel
on rp3440.

BUG: soft lockup - CPU#0 stuck for 61s! [stty:11381]
Modules linked in: ext2 sd_mod crc_t10dif sym53c8xx tg3 scsi_transport_spi libphy scsi_mod [last unloaded: scsi_wait_scan]

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  000000ff0804ff0f 00000000405992d0 0000000040202d58 000000007fb508c8
r04-07  0000000040584ad0 0000000000000002 00000000c0307448 0000000040245410
r08-11  0000000000000000 ffffffffffffffea 0000000000019a04 0000000000019abc
r12-15  0000000000000002 000000000001c674 0000000000000001 0000000000000000
r16-19  0000000000000001 0000000000000001 0000000000000061 ffffffff80305828
r20-23  0000000000000036 000000004052c8c4 00000000405fac24 0000000000000000
r24-27  00000000403eeca0 0000000040245410 000000007fb508c8 0000000040584ad0
r28-31  000000408f955c50 000000408b2a82e0 000000408b2a8310 00000000404c6fb8
sr00-03  0000000000006800 0000000000006800 0000000000000000 0000000000006800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004029d7cc 000000004029d7d0
 IIR: 53450110    ISR: 000000408b2a8488  IOR: 0000000000000000
 CPU:        0   CR30: 000000408b2a8000 CR31: 0000000040564000
ORIG_R28: 0000000040584ad0
IAOQ[0]: tty_compat_ioctl+0x44/0x130
IAOQ[1]: tty_compat_ioctl+0x48/0x130
RP(r2): compat_sys_ioctl+0xb8/0x420
Backtrace:
[<0000000040202d58>] compat_sys_ioctl+0xb8/0x420
[<0000000040104ed4>] syscall_exit+0x0/0x14

Assembly:
    4029d7c8:   53 5c 00 30     ldd 18(r26),ret0
    4029d7cc:   53 45 01 10     ldd 88(r26),r5
    4029d7d0:   53 99 00 20     ldd 10(ret0),r25
    4029d7d4:   eb ff bb 8d     b,l 4029d5a0 <tty_paranoia_check>,rp
    4029d7d8:   08 05 02 5a     copy r5,r26

static long tty_compat_ioctl(struct file *file, unsigned int cmd,
                                unsigned long arg)
{
	struct inode *inode = file->f_dentry->d_inode;
	struct tty_struct *tty = file->private_data;
	struct tty_ldisc *ld;
	int retval = -ENOIOCTLCMD;

	if (tty_paranoia_check(tty, inode, "tty_ioctl"))
		return -EINVAL;

I can't see anything obviously wrong with code, so it's possible the
lockup was caused by the lockup detection itself.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Denys Vlasenko <vda.linux@googlemail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.cross-arch
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In-Reply-To: <AANLkTin-9VsTJxGclRUrJIizn9aDZ6pjxmByBCWB0Hqr@mail.gmail.com>
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On Sunday 18 July 2010 20:24, Geert Uytterhoeven wrote:
> On Sun, Jul 18, 2010 at 17:03, Denys Vlasenko <vda.linux@googlemail.com> wrote:
> > I am sending this email from the machine which runs the kernel
> > built with -ffunction-sections -fdata-sections --gc-sections.
> 
> (sorry for the previous HTML-email)
> 
> For the record, what are the metrics of this kernel vs. the standard one?

Kernel:

   text    data     bss     dec     hex filename
8299299  857324  785348 9941971  97b3d3 linux-2.6.35-rc4.obj/vmlinux
7656461  841508  783700 9281669  8da085 linux-2.6.35-rc4-fs.obj/vmlinux
7566908  832388  717844 9117140  8b1dd4 linux-2.6.35-rc4-fsgs.obj/vmlinux

The largest module in my build:
   text    data     bss     dec     hex filename
 451009   54640    2224  507873   7bfe1 linux-2.6.35-rc4.obj/fs/xfs/xfs.ko
 450519   54292    2202  507013   7bc85 linux-2.6.35-rc4-fs.obj/fs/xfs/xfs.ko
 450521   54292    2202  507015   7bc87 linux-2.6.35-rc4-fsgs.obj/fs/xfs/xfs.ko


-- 
vda
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From - Thu Nov 08 21:06:08 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: 2.6.35-rc5+ fails to boot
Date: Sun, 18 Jul 2010 20:05:40 -0400
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--k1lZvvs/B4yU6o8G
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.14 root@penalosa Wed Oct  8 15:04:37 UTC 2008

Partition Start(MB) End(MB) Id Type
1               1     101   f0 Palo
2             102    1082   82 swap
3            1083   34726   83 ext2

PALO(F0) partition contains:
PALO is formatted EXT2/3
Command line for kernel: 'root=/dev/sda3 panic=5 console=ttyS1 palo_kernel=1/vmlinux'
Selected kernel: /vmlinux from partition 1
Selected ramdisk: /initrd.img from partition 1
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4198400 mediaptr 0x1000
Segment 1 load 00549b70 size 392320 mediaptr 0x402b70
Segment 2 load 005ac000 size 167384 mediaptr 0x463000
Loading ramdisk 7171579 bytes @ 3f917000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.35-rc5+ (root@mx3210) (gcc version 4.4.4 (GCC) ) #2 Sun Jul 18 19:03:28 EDT 2010
unwind_init: start = 0x40431000, end = 0x40458b20, entries = 10162
WARNING: Out of order unwind entry! 0000000040432080 and 0000000040432090
WARNING: Out of order unwind entry! 0000000040432090 and 00000000404320a0
WARNING: Out of order unwind entry! 0000000040432bd0 and 0000000040432be0
WARNING: Out of order unwind entry! 0000000040432be0 and 0000000040432bf0
FP[0] enabled: Rev 1 Model 20
The 64-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00008870 00000491 00000000 00000002 3e0505e7352af711 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 20 rev 4 (0x00000284)
capabilities 0x35
model 9000/800/rp3440  
parisc_cache_init: Only equivalent aliasing supported!
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
 1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
Total Memory: 2046 MB
initrd: 7f917000-7ffeddfb
initrd: reserving 3f917000-3ffeddfb (mem_max 7fe00000)
Built 2 zonelists in Zone order, mobility grouping on.  Total pages: 516615
Kernel command line: root=/dev/sda3 panic=5 console=ttyS1 palo_kernel=1/vmlinux
PID hash table entries: 4096 (order: 3, 32768 bytes)
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Memory: 2047180k/2095104k available (2653k kernel code, 47924k reserved, 1397k data, 164k init)
virtual kernel memory layout:
   vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
   memory  : 0x0000000040000000 - 0x00000040bfe00000   (264190 MB)
   .init : 0x00000000405ac000 - 0x00000000405d5000   ( 164 kB)
   .data : 0x0000000040397768 - 0x00000000404f4e80   (1397 kB)
   .text : 0x0000000040100000 - 0x0000000040397768   (2653 kB)
Hierarchical RCU implementation.

Attached config.

Thought this machine had more memory...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--k1lZvvs/B4yU6o8G
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="config-2.6.35-rc5+"

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.35-rc5
# Sun Jul 18 16:26:05 2010
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_IRQ_PER_CPU=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE="hppa64-linux-gnu"
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_TREE_PREEMPT_RCU is not set
# CONFIG_TINY_RCU is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=64
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=17
# CONFIG_CGROUPS is not set
# CONFIG_SYSFS_DEPRECATED_V2 is not set
# CONFIG_RELAY is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_LZO=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# CONFIG_PERF_COUNTERS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
CONFIG_COMPAT_BRK=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_SLOW_WORK is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
CONFIG_INLINE_SPIN_UNLOCK=y
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
CONFIG_INLINE_READ_UNLOCK=y
# CONFIG_INLINE_READ_UNLOCK_BH is not set
CONFIG_INLINE_READ_UNLOCK_IRQ=y
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
CONFIG_INLINE_WRITE_UNLOCK=y
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
# CONFIG_MUTEX_SPIN_ON_OWNER is not set
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
# CONFIG_SMP is not set
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_COMPAT=y

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
# CONFIG_GSC_WAX is not set
# CONFIG_EISA is not set
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
# CONFIG_CHASSIS_LCD_LED is not set
# CONFIG_PDC_CHASSIS is not set
# CONFIG_PDC_CHASSIS_WARN is not set
# CONFIG_PDC_STABLE is not set

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=m
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=m
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
CONFIG_XFRM_SUB_POLICY=y
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NETFILTER_TPROXY is not set
CONFIG_NETFILTER_XTABLES=m

#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m

#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
# CONFIG_NETFILTER_XT_TARGET_TEE is not set
# CONFIG_NETFILTER_XT_TARGET_TRACE is not set
# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m

#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set
CONFIG_NETFILTER_XT_MATCH_HL=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
# CONFIG_NETFILTER_XT_MATCH_OSF is not set
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
CONFIG_IP_VS=m
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12

#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
# CONFIG_IP_VS_PROTO_SCTP is not set

#
# IPVS scheduler
#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m

#
# IPVS application helper
#
CONFIG_IP_VS_FTP=m

#
# IP: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV4 is not set
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_IP_DCCP=m
CONFIG_INET_DCCP_DIAG=m

#
# DCCP CCIDs Configuration (EXPERIMENTAL)
#
# CONFIG_IP_DCCP_CCID2_DEBUG is not set
CONFIG_IP_DCCP_CCID3=y
# CONFIG_IP_DCCP_CCID3_DEBUG is not set
CONFIG_IP_DCCP_CCID3_RTO=100
CONFIG_IP_DCCP_TFRC_LIB=y

#
# DCCP Kernel Hacking
#
# CONFIG_IP_DCCP_DEBUG is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_MSG is not set
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_HMAC_NONE is not set
CONFIG_SCTP_HMAC_SHA1=y
# CONFIG_SCTP_HMAC_MD5 is not set
# CONFIG_RDS is not set
CONFIG_TIPC=m
# CONFIG_TIPC_ADVANCED is not set
# CONFIG_TIPC_DEBUG is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
CONFIG_STP=m
CONFIG_GARP=m
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
# CONFIG_DECNET is not set
CONFIG_LLC=m
CONFIG_LLC2=m
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
CONFIG_NET_CLS_ROUTE=y
# CONFIG_DCB is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_WIRELESS=y
# CONFIG_CFG80211 is not set
# CONFIG_LIB80211 is not set

#
# CFG80211 needs to be enabled for MAC80211
#

#
# Some wireless drivers require a rate control algorithm
#
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_DEVTMPFS is not set
# CONFIG_STANDALONE is not set
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
# CONFIG_PARPORT_SERIAL is not set
CONFIG_PARPORT_PC_FIFO=y
CONFIG_PARPORT_PC_SUPERIO=y
CONFIG_PARPORT_GSC=m
# CONFIG_PARPORT_AX88796 is not set
# CONFIG_PARPORT_1284 is not set
CONFIG_PARPORT_NOT_PC=y
CONFIG_BLK_DEV=y
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_UMEM=m
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m

#
# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
#
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_SX8=m
CONFIG_BLK_DEV_UB=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=6144
# CONFIG_BLK_DEV_XIP is not set
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
CONFIG_CDROM_PKTCDVD_WCACHE=y
CONFIG_ATA_OVER_ETH=m
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_AD525X_DPOT is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
CONFIG_ENCLOSURE_SERVICES=m
# CONFIG_HP_ILO is not set
# CONFIG_ISL29003 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_DS1682 is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=m
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=m
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m
# CONFIG_SCSI_MULTI_LUN is not set
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_HOST_SMP=y
CONFIG_SCSI_SAS_LIBSAS_DEBUG=y
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
CONFIG_ISCSI_TCP=m
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
CONFIG_BLK_DEV_3W_XXXX_RAID=m
# CONFIG_SCSI_HPSA is not set
CONFIG_SCSI_3W_9XXX=m
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=32
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
CONFIG_AIC7XXX_DEBUG_ENABLE=y
CONFIG_AIC7XXX_DEBUG_MASK=0
CONFIG_AIC7XXX_REG_PRETTY_PRINT=y
CONFIG_SCSI_AIC7XXX_OLD=m
CONFIG_SCSI_AIC79XX=m
CONFIG_AIC79XX_CMDS_PER_DEVICE=32
CONFIG_AIC79XX_RESET_DELAY_MS=15000
CONFIG_AIC79XX_DEBUG_ENABLE=y
CONFIG_AIC79XX_DEBUG_MASK=0
CONFIG_AIC79XX_REG_PRETTY_PRINT=y
CONFIG_SCSI_AIC94XX=m
CONFIG_AIC94XX_DEBUG=y
CONFIG_SCSI_MVSAS=m
CONFIG_SCSI_MVSAS_DEBUG=y
CONFIG_SCSI_DPT_I2O=m
# CONFIG_SCSI_ADVANSYS is not set
CONFIG_SCSI_ARCMSR=m
CONFIG_MEGARAID_NEWGEN=y
CONFIG_MEGARAID_MM=m
CONFIG_MEGARAID_MAILBOX=m
CONFIG_MEGARAID_LEGACY=m
CONFIG_MEGARAID_SAS=m
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
CONFIG_SCSI_IPS=m
# CONFIG_SCSI_INITIO is not set
CONFIG_SCSI_INIA100=m
CONFIG_SCSI_PPA=m
CONFIG_SCSI_IMM=m
# CONFIG_SCSI_IZIP_EPP16 is not set
# CONFIG_SCSI_IZIP_SLOW_CTR is not set
CONFIG_SCSI_LASI700=m
CONFIG_53C700_LE_ON_BE=y
CONFIG_SCSI_STEX=m
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
CONFIG_SCSI_ZALON=m
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
CONFIG_SCSI_QLOGIC_1280=m
CONFIG_SCSI_QLA_FC=m
CONFIG_SCSI_QLA_ISCSI=m
CONFIG_SCSI_LPFC=m
# CONFIG_SCSI_LPFC_DEBUG_FS is not set
CONFIG_SCSI_DC395x=m
# CONFIG_SCSI_DC390T is not set
CONFIG_SCSI_DEBUG=m
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_BFA_FC is not set
CONFIG_SCSI_DH=m
CONFIG_SCSI_DH_RDAC=m
CONFIG_SCSI_DH_HP_SW=m
CONFIG_SCSI_DH_EMC=m
CONFIG_SCSI_DH_ALUA=m
# CONFIG_SCSI_OSD_INITIATOR is not set
# CONFIG_ATA is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
# CONFIG_MD_RAID456 is not set
CONFIG_MD_MULTIPATH=m
CONFIG_MD_FAULTY=m
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
# CONFIG_DM_LOG_USERSPACE is not set
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
# CONFIG_DM_MULTIPATH_QL is not set
# CONFIG_DM_MULTIPATH_ST is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_UEVENT is not set
CONFIG_FUSION=y
CONFIG_FUSION_SPI=m
CONFIG_FUSION_FC=m
CONFIG_FUSION_SAS=m
CONFIG_FUSION_MAX_SGE=128
CONFIG_FUSION_CTL=m
# CONFIG_FUSION_LOGGING is not set

#
# IEEE 1394 (FireWire) support
#

#
# You can enable one or both FireWire driver stacks.
#

#
# The newer stack is recommended.
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_BONDING=m
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
# CONFIG_BROADCOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
CONFIG_LASI_82596=m
CONFIG_HAPPYMEAL=m
# CONFIG_SUNGEM is not set
CONFIG_CASSINI=m
CONFIG_NET_VENDOR_3COM=y
CONFIG_VORTEX=m
# CONFIG_TYPHOON is not set
# CONFIG_ETHOC is not set
# CONFIG_DNET is not set
CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_DE2104X_DSL=0
CONFIG_TULIP=m
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_TULIP_NAPI is not set
CONFIG_DE4X5=m
CONFIG_WINBOND_840=m
# CONFIG_DM9102 is not set
CONFIG_ULI526X=m
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
CONFIG_PCNET32=m
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_B44=m
CONFIG_B44_PCI_AUTOSELECT=y
CONFIG_B44_PCICORE_AUTOSELECT=y
CONFIG_B44_PCI=y
CONFIG_FORCEDETH=m
CONFIG_E100=m
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_8139CP is not set
CONFIG_8139TOO=m
# CONFIG_8139TOO_PIO is not set
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_OLD_RX_RESET is not set
# CONFIG_R6040 is not set
CONFIG_SIS900=m
CONFIG_EPIC100=m
# CONFIG_SMSC9420 is not set
CONFIG_SUNDANCE=m
CONFIG_SUNDANCE_MMIO=y
CONFIG_TLAN=m
# CONFIG_KS8842 is not set
# CONFIG_KS8851_MLL is not set
CONFIG_VIA_RHINE=m
CONFIG_VIA_RHINE_MMIO=y
# CONFIG_SC92031 is not set
# CONFIG_NET_POCKET is not set
# CONFIG_ATL2 is not set
CONFIG_NETDEV_1000=y
CONFIG_ACENIC=m
# CONFIG_ACENIC_OMIT_TIGON_I is not set
# CONFIG_DL2K is not set
CONFIG_E1000=m
# CONFIG_E1000E is not set
# CONFIG_IP1000 is not set
CONFIG_IGB=m
# CONFIG_IGBVF is not set
# CONFIG_NS83820 is not set
CONFIG_HAMACHI=m
CONFIG_YELLOWFIN=m
# CONFIG_R8169 is not set
# CONFIG_SIS190 is not set
CONFIG_SKGE=m
# CONFIG_SKGE_DEBUG is not set
# CONFIG_SKY2 is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_TIGON3=m
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_JME is not set
CONFIG_NETDEV_10000=y
CONFIG_MDIO=m
CONFIG_CHELSIO_T1=m
# CONFIG_CHELSIO_T1_1G is not set
CONFIG_CHELSIO_T3_DEPENDS=y
# CONFIG_CHELSIO_T3 is not set
CONFIG_CHELSIO_T4_DEPENDS=y
# CONFIG_CHELSIO_T4 is not set
CONFIG_ENIC=m
# CONFIG_IXGBE is not set
# CONFIG_IXGB is not set
CONFIG_S2IO=m
# CONFIG_VXGE is not set
CONFIG_MYRI10GE=m
# CONFIG_NETXEN_NIC is not set
# CONFIG_NIU is not set
CONFIG_MLX4_EN=m
CONFIG_MLX4_CORE=m
CONFIG_MLX4_DEBUG=y
# CONFIG_TEHUTI is not set
# CONFIG_BNX2X is not set
# CONFIG_QLCNIC is not set
CONFIG_QLGE=m
CONFIG_SFC=m
# CONFIG_BE2NET is not set
# CONFIG_TR is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPP_FILTER is not set
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
# CONFIG_SLIP is not set
CONFIG_SLHC=m
# CONFIG_NET_FC is not set
CONFIG_NETCONSOLE=m
# CONFIG_NETCONSOLE_DYNAMIC is not set
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=m
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_ATKBD_HP_KEYCODES is not set
# CONFIG_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_TCA6416 is not set
CONFIG_KEYBOARD_HIL_OLD=m
CONFIG_KEYBOARD_HIL=m
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=m
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_SERIAL=m
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_ATI_REMOTE is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
CONFIG_INPUT_CM109=m
CONFIG_INPUT_UINPUT=m
CONFIG_HP_SDC_RTC=m
# CONFIG_INPUT_PCF8574 is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=m
CONFIG_SERIO_PARKBD=m
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=y
CONFIG_HIL_MLC=y
CONFIG_SERIO_PCIPS2=m
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_DEVKMEM=y
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_N_GSM is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
# CONFIG_SERIAL_8250_MANY_PORTS is not set
# CONFIG_SERIAL_8250_SHARE_IRQ is not set
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MUX is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
CONFIG_RAW_DRIVER=m
CONFIG_MAX_RAW_DEVS=256
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_RAMOOPS is not set
CONFIG_I2C=m
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
# CONFIG_I2C_CHARDEV is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set

#
# PPS support
#
# CONFIG_PPS is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_SENSORS_LIS3_I2C is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
# CONFIG_SSB_B43_PCI_BRIDGE is not set
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y
CONFIG_MFD_SUPPORT=y
CONFIG_MFD_CORE=m
# CONFIG_MFD_SM501 is not set
CONFIG_HTC_PASIC3=m
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_PARISC=m
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
# CONFIG_FB_CFB_FILLRECT is not set
# CONFIG_FB_CFB_COPYAREA is not set
# CONFIG_FB_CFB_IMAGEBLIT is not set
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_STI is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_TMIO is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
# CONFIG_STI_CONSOLE is not set
CONFIG_FONTS=y
# CONFIG_FONT_8x8 is not set
CONFIG_FONT_8x16=y
# CONFIG_FONT_6x11 is not set
# CONFIG_FONT_7x14 is not set
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
# CONFIG_FONT_MINI_4x6 is not set
# CONFIG_FONT_SUN8x16 is not set
# CONFIG_FONT_SUN12x22 is not set
# CONFIG_FONT_10x18 is not set
# CONFIG_LOGO is not set
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
# CONFIG_SOUND_OSS_CORE_PRECLAIM is not set
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
CONFIG_SND_VERBOSE_PRINTK=y
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_RAWMIDI_SEQ=m
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
# CONFIG_SND_PORTMAN2X4 is not set
# CONFIG_SND_AC97_POWER_SAVE is not set
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
CONFIG_SND_HDSPM=m
# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
CONFIG_SND_USB=y
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_UA101 is not set
# CONFIG_SND_USB_CAIAQ is not set
CONFIG_SND_GSC=y
CONFIG_SND_HARMONY=m
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HIDRAW is not set

#
# USB Input Devices
#
CONFIG_USB_HID=m
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set

#
# Special HID drivers
#
# CONFIG_HID_3M_PCT is not set
CONFIG_HID_A4TECH=m
CONFIG_HID_APPLE=m
CONFIG_HID_BELKIN=m
# CONFIG_HID_CANDO is not set
CONFIG_HID_CHERRY=m
CONFIG_HID_CHICONY=m
# CONFIG_HID_PRODIKEYS is not set
CONFIG_HID_CYPRESS=m
CONFIG_HID_DRAGONRISE=m
# CONFIG_DRAGONRISE_FF is not set
# CONFIG_HID_EGALAX is not set
CONFIG_HID_EZKEY=m
CONFIG_HID_KYE=m
CONFIG_HID_GYRATION=m
CONFIG_HID_TWINHAN=m
CONFIG_HID_KENSINGTON=m
CONFIG_HID_LOGITECH=m
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
CONFIG_HID_MICROSOFT=m
# CONFIG_HID_MOSART is not set
CONFIG_HID_MONTEREY=m
CONFIG_HID_NTRIG=m
CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=m
# CONFIG_PANTHERLORD_FF is not set
CONFIG_HID_PETALYNX=m
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_QUANTA is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_ROCCAT_KONE is not set
CONFIG_HID_SAMSUNG=m
CONFIG_HID_SONY=m
# CONFIG_HID_STANTUM is not set
CONFIG_HID_SUNPLUS=m
CONFIG_HID_GREENASIA=m
# CONFIG_GREENASIA_FF is not set
CONFIG_HID_SMARTJOYPLUS=m
# CONFIG_SMARTJOYPLUS_FF is not set
CONFIG_HID_TOPSEED=m
CONFIG_HID_THRUSTMASTER=m
# CONFIG_THRUSTMASTER_FF is not set
CONFIG_HID_ZEROPLUS=m
# CONFIG_ZEROPLUS_FF is not set
# CONFIG_HID_ZYDACRON is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=m
# CONFIG_USB_DEBUG is not set
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_MON=m
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
# CONFIG_USB_EHCI_HCD is not set
# CONFIG_USB_OXU210HP_HCD is not set
CONFIG_USB_ISP116X_HCD=m
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_OHCI_HCD is not set
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_WHCI_HCD is not set
# CONFIG_USB_HWA_HCD is not set

#
# Enable Host or Gadget support to see Inventra options
#

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=m
CONFIG_USB_EMI26=m
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
CONFIG_USB_LEGOTOWER=m
# CONFIG_USB_LCD is not set
CONFIG_USB_LED=m
# CONFIG_USB_CYPRESS_CY7C63 is not set
CONFIG_USB_CYTHERM=m
CONFIG_USB_IDMOUSE=m
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
CONFIG_USB_LD=m
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
# CONFIG_NOP_USB_XCEIV is not set
CONFIG_UWB=m
CONFIG_UWB_HWA=m
CONFIG_UWB_WHCI=m
CONFIG_UWB_WLP=m
CONFIG_UWB_I1480U=m
CONFIG_UWB_I1480U_WLP=m
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_STAGING is not set

#
# File systems
#
CONFIG_EXT2_FS=m
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=m
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_XATTR=y
# CONFIG_EXT3_FS_POSIX_ACL is not set
# CONFIG_EXT3_FS_SECURITY is not set
CONFIG_EXT4_FS=m
CONFIG_EXT4_FS_XATTR=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD=m
# CONFIG_JBD_DEBUG is not set
CONFIG_JBD2=m
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=m
CONFIG_REISERFS_FS=m
# CONFIG_REISERFS_CHECK is not set
CONFIG_REISERFS_PROC_INFO=y
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_QUOTA=y
# CONFIG_QUOTA_NETLINK_INTERFACE is not set
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=m
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
# CONFIG_CUSE is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_LOGFS is not set
CONFIG_CRAMFS=y
# CONFIG_SQUASHFS is not set
CONFIG_VXFS_FS=m
CONFIG_MINIX_FS=m
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
CONFIG_ROMFS_FS=m
CONFIG_ROMFS_BACKED_BY_BLOCK=y
# CONFIG_ROMFS_BACKED_BY_MTD is not set
# CONFIG_ROMFS_BACKED_BY_BOTH is not set
CONFIG_ROMFS_ON_BLOCK=y
CONFIG_SYSV_FS=m
CONFIG_UFS_FS=m
# CONFIG_UFS_FS_WRITE is not set
# CONFIG_UFS_DEBUG is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
# CONFIG_NFS_V4 is not set
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
# CONFIG_NFSD_V4 is not set
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=m
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_RPCSEC_GSS_KRB5=m
CONFIG_RPCSEC_GSS_SPKM3=m
# CONFIG_SMB_FS is not set
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
CONFIG_DEBUG_SLAB=y
CONFIG_DEBUG_SLAB_LEAK=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_PI_LIST=y
CONFIG_RT_MUTEX_TESTER=y
# CONFIG_DEBUG_SPINLOCK is not set
CONFIG_DEBUG_MUTEXES=y
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
CONFIG_DEBUG_BLOCK_EXT_DEVT=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_LKDTM=m
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_PAGE_POISONING is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_RODATA is not set
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
# CONFIG_DEFAULT_SECURITY_SELINUX is not set
# CONFIG_DEFAULT_SECURITY_SMACK is not set
# CONFIG_DEFAULT_SECURITY_TOMOYO is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_FIPS=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_SEQIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_GHASH=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=m
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
# CONFIG_CRYPTO_CAMELLIA is not set
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
# CONFIG_CRYPTO_SEED is not set
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_ZLIB is not set
CONFIG_CRYPTO_LZO=m

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_HIFN_795X=m
# CONFIG_CRYPTO_DEV_HIFN_795X_RNG is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_LAST_BIT=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
CONFIG_CRC_T10DIF=m
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=m
CONFIG_LZO_DECOMPRESS=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y

--k1lZvvs/B4yU6o8G--
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From - Thu Nov 08 21:06:08 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Fwd: [PATCH] parisc: pass through '\t' to early (iodc) console
Date: Sun, 18 Jul 2010 21:07:25 -0400
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To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Original-X-From: linux-parisc-owner@vger.kernel.org Mon Jul 19 03:07:28 2010
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This should fix the hang, JDA.

Sorry, looks like Linus missed it when he came back from his
scuba diving trip.

I'll resend it in the morning.

--Kyle

----- Forwarded message from Kyle McMartin <kyle@mcmartin.ca> -----

Date: Mon, 14 Jun 2010 12:02:27 -0400
From: Kyle McMartin <kyle@mcmartin.ca>
To: linux-parisc@vger.kernel.org
Subject: [PATCH] parisc: pass through '\t' to early (iodc) console
Sender: linux-parisc-owner@vger.kernel.org
Message-ID: <20100614160227.GK20317@bombadil.infradead.org>
User-Agent: Mutt/1.5.19 (2009-01-05)

The firmware handles '\t' internally, so stop trying to emulate it
(which, incidentally, had a bug in it.)

Fixes a really weird hang at bootup in rcu_bootup_announce, which,
as far as I can tell, is the first printk in the core kernel to use
a tab as the first character.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 arch/parisc/kernel/firmware.c |   12 ++----------
 1 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 4c247e0..df971fa 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1123,7 +1123,6 @@ static char __attribute__((aligned(64))) iodc_dbuf[4096];
  */
 int pdc_iodc_print(const unsigned char *str, unsigned count)
 {
-	static int posx;        /* for simple TAB-Simulation... */
 	unsigned int i;
 	unsigned long flags;
 
@@ -1133,19 +1132,12 @@ int pdc_iodc_print(const unsigned char *str, unsigned count)
 			iodc_dbuf[i+0] = '\r';
 			iodc_dbuf[i+1] = '\n';
 			i += 2;
-			posx = 0;
 			goto print;
-		case '\t':
-			while (posx & 7) {
-				iodc_dbuf[i] = ' ';
-				i++, posx++;
-			}
-			break;
 		case '\b':	/* BS */
-			posx -= 2;
+			i--; /* overwrite last */
 		default:
 			iodc_dbuf[i] = str[i];
-			i++, posx++;
+			i++;
 			break;
 		}
 	}
-- 
1.7.0.1

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From - Thu Nov 08 21:06:09 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Fwd: [PATCH] parisc: pass through '\t' to early (iodc) console
Date: Sun, 18 Jul 2010 21:14:37 -0400 (EDT)
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To: kyle@mcmartin.ca (Kyle McMartin)
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> This should fix the hang, JDA.

Thanks Kyle, I'll give it a try.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:09 2018
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Subject: Re: Fwd: [PATCH] parisc: pass through '\t' to early (iodc) console
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> This should fix the hang, JDA.

Fixes boot.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> 
> * modpost fix for 64k+ sections: linux-2.6.35-rc4-fs.modpost.patch
>   This patch is in -mm, it still not reach mainline...
> 

Some comments below - but noting fundamental.

	Sam

--- linux-2.6.35-rc4/scripts/mod/file2alias.c
+++ linux-2.6.35-rc4-fs.obj1/scripts/mod/file2alias.c
@@ -884,16 +884,16 @@
 	char *zeros = NULL;
 
 	/* We're looking for a section relative symbol */
-	if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum)
+	if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
 		return;
 
 	/* Handle all-NULL symbols allocated into .bss */
-	if (info->sechdrs[sym->st_shndx].sh_type & SHT_NOBITS) {
+	if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
 		zeros = calloc(1, sym->st_size);
 		symval = zeros;
 	} else {
 		symval = (void *)info->hdr
-			+ info->sechdrs[sym->st_shndx].sh_offset
+			+ info->sechdrs[get_secindex(info, sym)].sh_offset
 			+ sym->st_value;
 	}
 
--- linux-2.6.35-rc4/scripts/mod/modpost.c
+++ linux-2.6.35-rc4-fs.obj1/scripts/mod/modpost.c
@@ -253,7 +253,7 @@
 	return export_unknown;
 }
 
-static enum export export_from_sec(struct elf_info *elf, Elf_Section sec)
+static enum export export_from_sec(struct elf_info *elf, unsigned int sec)
 {
 	if (sec == elf->export_sec)
 		return export_plain;
@@ -373,6 +373,8 @@
 	Elf_Ehdr *hdr;
 	Elf_Shdr *sechdrs;
 	Elf_Sym  *sym;
+	const char *secstrings;
+	unsigned int symtab_idx = ~0U, symtab_shndx_idx = ~0U;
 
 	hdr = grab_file(filename, &info->size);
 	if (!hdr) {
@@ -417,8 +419,19 @@
 		return 0;
 	}
 
+	/* Fixup for more than 64k sections */
+	info->num_sections = hdr->e_shnum;
+	if (info->num_sections == 0) { /* more than 64k sections? */
+		/* note: it doesn't need shndx2secindex() */
+		info->num_sections = TO_NATIVE(sechdrs[0].sh_size);
+	}
I had to read the above twice to get it.
How about something like this:

	/* Fixup for more than 64k sections */
	if (hdr->e_shnum == 0) {
		/*
		 * There are more than 64k sections,
		 * read count from .sh_size.
		 * note: it doesn't need shndx2secindex()
		 */
		info->num_sections = TO_NATIVE(sechdrs[0].sh_size);
	}
	else {
		info->num_sections = hdr->e_shnum;
	}


+	info->secindex_strings = hdr->e_shstrndx;
+	if (info->secindex_strings == SHN_XINDEX)
+		info->secindex_strings =
+		    shndx2secindex(TO_NATIVE(sechdrs[0].sh_link));

Likewise here...

	/* e_shstrndx == SHN_XINDEX if we have > 64k strings */
	if (hdr->e_shstrndx != SHN_XINDEX)
		info->secindex_strings = hdr->e_shstrndx;
	else
		info->secindex_strings = shndx2secindex(TO_NATIVE(sechdrs[0].sh_link));


 	/* Fix endianness in section headers */
-	for (i = 0; i < hdr->e_shnum; i++) {
+	for (i = 0; i < info->num_sections; i++) {
 		sechdrs[i].sh_name      = TO_NATIVE(sechdrs[i].sh_name);
 		sechdrs[i].sh_type      = TO_NATIVE(sechdrs[i].sh_type);
 		sechdrs[i].sh_flags     = TO_NATIVE(sechdrs[i].sh_flags);
@@ -431,9 +444,8 @@
 		sechdrs[i].sh_entsize   = TO_NATIVE(sechdrs[i].sh_entsize);
 	}
 	/* Find symbol table. */
-	for (i = 1; i < hdr->e_shnum; i++) {
-		const char *secstrings
-			= (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
+	secstrings = (void *)hdr + sechdrs[info->secindex_strings].sh_offset;

Moving this assignnet out of the loop is an unrelated
but welcome change.


+	for (i = 1; i < info->num_sections; i++) {
 		const char *secname;
 		int nobits = sechdrs[i].sh_type == SHT_NOBITS;
 
@@ -461,14 +473,26 @@
 		else if (strcmp(secname, "__ksymtab_gpl_future") == 0)
 			info->export_gpl_future_sec = i;
 
-		if (sechdrs[i].sh_type != SHT_SYMTAB)
-			continue;
+		if (sechdrs[i].sh_type == SHT_SYMTAB) {
+			unsigned int sh_link_idx;
+			symtab_idx = i;
+			info->symtab_start = (void *)hdr +
+			    sechdrs[i].sh_offset;
+			info->symtab_stop  = (void *)hdr +
+			    sechdrs[i].sh_offset + sechdrs[i].sh_size;
+			sh_link_idx = shndx2secindex(sechdrs[i].sh_link);
+			info->strtab       = (void *)hdr +
+			    sechdrs[sh_link_idx].sh_offset;
+		}
 
-		info->symtab_start = (void *)hdr + sechdrs[i].sh_offset;
-		info->symtab_stop  = (void *)hdr + sechdrs[i].sh_offset
-			                         + sechdrs[i].sh_size;
-		info->strtab       = (void *)hdr +
-			             sechdrs[sechdrs[i].sh_link].sh_offset;
+		/* 32bit section no. table? ("more than 64k sections") */
+		if (sechdrs[i].sh_type == SHT_SYMTAB_SHNDX) {
+			symtab_shndx_idx = i;
+			info->symtab_shndx_start = (void *)hdr +
+			    sechdrs[i].sh_offset;
+			info->symtab_shndx_stop  = (void *)hdr +
+			    sechdrs[i].sh_offset + sechdrs[i].sh_size;
+		}
 	}
 	if (!info->symtab_start)
 		fatal("%s has no symtab?\n", filename);
@@ -480,6 +504,21 @@
 		sym->st_value = TO_NATIVE(sym->st_value);
 		sym->st_size  = TO_NATIVE(sym->st_size);
 	}
+
+	if (symtab_shndx_idx != ~0U) {
+		Elf32_Word *p;
+		if (symtab_idx !=
+		    shndx2secindex(sechdrs[symtab_shndx_idx].sh_link))
+			fatal("%s: SYMTAB_SHNDX has bad sh_link: %u!=%u\n",
+			      filename,
+			      shndx2secindex(sechdrs[symtab_shndx_idx].sh_link),
+			      symtab_idx);
+		/* Fix endianness */
+		for (p = info->symtab_shndx_start; p < info->symtab_shndx_stop;
+		     p++)
+			*p = TO_NATIVE(*p);
+	}
+
 	return 1;
 }
 
@@ -514,7 +553,7 @@
 			       Elf_Sym *sym, const char *symname)
 {
 	unsigned int crc;
-	enum export export = export_from_sec(info, sym->st_shndx);
+	enum export export = export_from_sec(info, get_secindex(info, sym));
 
 	switch (sym->st_shndx) {
 	case SHN_COMMON:
@@ -656,19 +695,19 @@
 		return "(unknown)";
 }
 
-static const char *sec_name(struct elf_info *elf, int shndx)
+static const char *sec_name(struct elf_info *elf, int secindex)
 {
 	Elf_Shdr *sechdrs = elf->sechdrs;
 	return (void *)elf->hdr +
-	        elf->sechdrs[elf->hdr->e_shstrndx].sh_offset +
-	        sechdrs[shndx].sh_name;
+		elf->sechdrs[elf->secindex_strings].sh_offset +
+		sechdrs[secindex].sh_name;
 }
 
 static const char *sech_name(struct elf_info *elf, Elf_Shdr *sechdr)
 {
 	return (void *)elf->hdr +
-	        elf->sechdrs[elf->hdr->e_shstrndx].sh_offset +
-	        sechdr->sh_name;
+		elf->sechdrs[elf->secindex_strings].sh_offset +
+		sechdr->sh_name;
 }
 
 /* if sym is empty or point to a string
@@ -1047,11 +1086,14 @@
 	Elf_Sym *near = NULL;
 	Elf64_Sword distance = 20;
 	Elf64_Sword d;
+	unsigned int relsym_secindex;
 
 	if (relsym->st_name != 0)
 		return relsym;
+
+	relsym_secindex = get_secindex(elf, relsym);
 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
-		if (sym->st_shndx != relsym->st_shndx)
+		if (get_secindex(elf, sym) != relsym_secindex)
 			continue;
 		if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
 			continue;
@@ -1113,9 +1155,9 @@
 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
 		const char *symsec;
 
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
-		symsec = sec_name(elf, sym->st_shndx);
+		symsec = sec_name(elf, get_secindex(elf, sym));
 		if (strcmp(symsec, sec) != 0)
 			continue;
 		if (!is_valid_name(elf, sym))
@@ -1311,7 +1353,7 @@
 	const char *tosec;
 	const struct sectioncheck *mismatch;
 
-	tosec = sec_name(elf, sym->st_shndx);
+	tosec = sec_name(elf, get_secindex(elf, sym));
 	mismatch = section_mismatch(fromsec, tosec);
 	if (mismatch) {
 		Elf_Sym *to;
@@ -1339,7 +1381,7 @@
 				    Elf_Shdr *sechdr, Elf_Rela *r)
 {
 	Elf_Shdr *sechdrs = elf->sechdrs;
-	int section = sechdr->sh_info;
+	int section = shndx2secindex(sechdr->sh_info);
 
 	return (void *)elf->hdr + sechdrs[section].sh_offset +
 		r->r_offset - sechdrs[section].sh_addr;
@@ -1447,7 +1489,7 @@
 		r.r_addend = TO_NATIVE(rela->r_addend);
 		sym = elf->symtab_start + r_sym;
 		/* Skip special sections */
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
 		check_section_mismatch(modname, elf, &r, sym, fromsec);
 	}
@@ -1505,7 +1547,7 @@
 		}
 		sym = elf->symtab_start + r_sym;
 		/* Skip special sections */
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
 		check_section_mismatch(modname, elf, &r, sym, fromsec);
 	}
@@ -1530,7 +1572,7 @@
 	Elf_Shdr *sechdrs = elf->sechdrs;
 
 	/* Walk through all sections */
-	for (i = 0; i < elf->hdr->e_shnum; i++) {
+	for (i = 0; i < elf->num_sections; i++) {
 		check_section(modname, elf, &elf->sechdrs[i]);
 		/* We want to process only relocation sections and not .init */
 		if (sechdrs[i].sh_type == SHT_RELA)
--- linux-2.6.35-rc4/scripts/mod/modpost.h
+++ linux-2.6.35-rc4-fs.obj1/scripts/mod/modpost.h
@@ -129,7 +129,50 @@
 	const char   *strtab;
 	char	     *modinfo;
 	unsigned int modinfo_len;
+
+	/* support for 32bit section numbers */
+
+	unsigned int num_sections; /* max_secindex + 1 */
+	unsigned int secindex_strings;
+	/* if Nth symbol table entry has .st_shndx = SHN_XINDEX,
+	 * take shndx from symtab_shndx_start[N] instead */
+	Elf32_Word   *symtab_shndx_start;
+	Elf32_Word   *symtab_shndx_stop;
 };
+
+static inline int is_shndx_special(unsigned int i)
+{
+	return i != SHN_XINDEX && i >= SHN_LORESERVE && i <= SHN_HIRESERVE;
+}
+
+/* shndx is in [0..SHN_LORESERVE) U (SHN_HIRESERVE, 0xfffffff], thus:
+ * shndx == 0               <=> sechdrs[0]
+ * ......
+ * shndx == SHN_LORESERVE-1 <=> sechdrs[SHN_LORESERVE-1]
+ * shndx == SHN_HIRESERVE+1 <=> sechdrs[SHN_LORESERVE]
+ * shndx == SHN_HIRESERVE+2 <=> sechdrs[SHN_LORESERVE+1]
+ * ......
+ * fyi: sym->st_shndx is uint16, SHN_LORESERVE = ff00, SHN_HIRESERVE = ffff,
+ * so basically we map  0000..feff -> 0000..feff
+ *                      ff00..ffff -> (you are a bad boy, dont do it)
+ *                     10000..xxxx -> ff00..(xxxx-0x100)
+ */
+static inline unsigned int shndx2secindex(unsigned int i)
+{
+	if (i <= SHN_HIRESERVE)
+		return i;
+	return i - (SHN_HIRESERVE + 1 - SHN_LORESERVE);
+}
+
+/* Accessor for sym->st_shndx, hides ugliness of "64k sections" */
+static inline unsigned int get_secindex(const struct elf_info *info,
+					const Elf_Sym *sym)
+{
+	if (sym->st_shndx != SHN_XINDEX)
+		return sym->st_shndx;
+	return shndx2secindex(info->symtab_shndx_start[sym -
+						       info->symtab_start]);
+}
 
 /* file2alias.c */
 extern unsigned int cross_build;

From - Thu Nov 08 21:06:09 2018
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X-Mozilla-Keys:                                                                                 
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From: Sam Ravnborg <sam@ravnborg.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.cross-arch
Subject: Re: Testing of function/data-sections on linux-2.6.35-rc4
Date: Fri, 23 Jul 2010 22:24:49 +0200
Lines: 133
Approved: news@gmane.org
Message-ID: <20100723202448.GB27054@merkur.ravnborg.org>
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Cc: Tim Abbott <tabbott@ksplice.com>, Tim Bird <tim.bird@am.sony.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	linux-kernel@vger.kernel.org,
	Matt Fleming <matt@console-pimps.org>,
	linux-arch@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	Michal Marek <mmarek@suse.cz>,
	Parisc List <linux-parisc@vger.kernel.org>
To: Denys Vlasenko <vda.linux@googlemail.com>
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> * fix for kernel linker stripts: linux-2.6.35-rc4-fs.fix-kernel-linker-scripts.patch
>   It makes _all_ linker scripts -ffunction/data-sections safe via:
>   -       *(.data)
>   +       *(.data .data.*)
>   

This patch touches both the regular kernel linker scripts and the
boot linker scripts.
I would strongly prefer a split so you touched the boot linker
scripts in a separate patch.

In addition the patch handles more sections than
documented: rodata, bss, text. 

The patch introduce the following syntax for input sections:

    *(.bss .bss.*)

Where the kernel linker script would have one input
section per line.
Can we stick to the "layout" used in the kernel linker scripts?

The patch in addition in several places changes linker
scripts that already uses the two-lines layout to a single line approach.
These "fixes" should be omitted.


Why do we need *(.bss .bss.*)?
Does -fdata-sections introduce special .bss sectiosn too?

This is the kind of info the changelog should give us.

	Sam


--- linux-2.6.35-rc4/arch/arm/boot/compressed/vmlinux.lds.in
+++ linux-2.6.35-rc4.new/arch/arm/boot/compressed/vmlinux.lds.in
@@ -29,12 +29,10 @@
   .text : {
     _start = .;
     *(.start)
-    *(.text)
-    *(.text.*)
+    *(.text .text.*)
     *(.fixup)
     *(.gnu.warning)
-    *(.rodata)
-    *(.rodata.*)
+    *(.rodata .rodata.*)
     *(.glue_7)
     *(.glue_7t)
     *(.piggydata)

This is one example where the patch only does layout changes.

--- linux-2.6.35-rc4/arch/arm/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4.new/arch/arm/kernel/vmlinux.lds.S
@@ -95,8 +95,7 @@
 			*(.fixup)
 #endif
 			*(.gnu.warning)
-			*(.rodata)
-			*(.rodata.*)
+			*(.rodata .rodata.*)
 			*(.glue_7)
 			*(.glue_7t)

Likewise...

--- linux-2.6.35-rc4/arch/frv/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4.new/arch/frv/kernel/vmlinux.lds.S
@@ -114,7 +114,7 @@
 
   .sbss		: { *(.sbss .sbss.*) }
   .bss		: { *(.bss .bss.*) }
-  .bss..stack	: { *(.bss) }
+  .bss..stack	: { *(.bss) } /* BUG??? we already absorbed it into .bss */

As the comments says the last line is redundant - remove it.

 
--- linux-2.6.35-rc4/include/asm-generic/vmlinux.lds.h
+++ linux-2.6.35-rc4.new/include/asm-generic/vmlinux.lds.h
@@ -140,9 +140,21 @@
 #define TRACE_SYSCALLS()
 #endif
 
+/* .data.foo are generated by gcc itself with -fdata-sections,
+ * whereas double-dot sections (like .data..percpu) are generated
+ * by kernel's magic macros.
+ *
+ * arch/.../vmlinux.lds.S decides where to place various double-dot sections
+ * as needed by its arch, here DATA_DATA needs to be careful and collect
+ * only .data and .data.foo sections, skipping .data..foo
+ *
+ * Same goes for .text, .bss and .rodata. In case of .rodata, various
+ * .rodata.foo sections are generated by gcc even without -fdata-sections
+ */
+
 /* .data section */
 #define DATA_DATA							\
-	*(.data)							\
+	*(.data .data.[A-Za-z0-9_$^]*)					\
 	*(.ref.data)							\
 	DEV_KEEP(init.data)						\
 	DEV_KEEP(exit.data)						\
@@ -202,7 +214,7 @@
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
 		VMLINUX_SYMBOL(__start_rodata) = .;			\
-		*(.rodata) *(.rodata.*)					\
+		*(.rodata .rodata.[A-Za-z0-9_$^]*)			\

.rodata deserve same comment as .data

 		*(__vermagic)		/* Kernel version magic */	\
 		*(__markers_strings)	/* Markers: strings */		\
 		*(__tracepoints_strings)/* Tracepoints: strings */	\
@@ -501,7 +513,7 @@
 	.bss : AT(ADDR(.bss) - LOAD_OFFSET) {				\
 		*(.bss..page_aligned)					\
 		*(.dynbss)						\
-		*(.bss)							\
+		*(.bss .bss.[A-Za-z0-9_$^]*)				\
.bss deserve a comment too.


	Sam
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From - Thu Nov 08 21:06:09 2018
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Subject: Re: Testing of function/data-sections on linux-2.6.35-rc4
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> * fix for module linker script: linux-2.6.35-rc4-fs.fix-ko-module-linker-script.patch
>   Prevents kernel modules from having unnecessarily many
>   sections and thus prevents module size growth.

Acked-by: Sam Ravnborg <sam@ravnborg.org>

--- linux-2.6.35-rc4/scripts/module-common.lds
+++ linux-2.6.35-rc4.new/scripts/module-common.lds
@@ -3,6 +3,29 @@
  * Archs are free to supply their own linker scripts.  ld will
  * combine them automatically.
  */
+
+/* .data.foo are generated by gcc itself with -fdata-sections,
+ * whereas double-dot sections (like .data..percpu) are generated
+ * by kernel's magic macros.
+ *
+ * Since this script does not specify what to do with double-dot sections,
+ * ld -r will coalesce all .data..foo input sections into one .data..foo
+ * output section, all .data..bar input sections into one .data..bar
+ * output section and so on. This is exactly what we want.
+ *
+ * Same goes for .text, .bss and .rodata. In case of .rodata, various
+ * .rodata.foo sections are generated by gcc even without -fdata-sections
+ */
+
 SECTIONS {
+
+	/* Coalesce sections produced by gcc -ffunction-sections */
+	.text   0 : AT(0) { *(.text .text.[A-Za-z0-9_$^]*) }
+
+	/* Coalesce sections produced by gcc -fdata-sections */
+	.rodata 0 : AT(0) { *(.rodata .rodata.[A-Za-z0-9_$^]*) }
+	.data   0 : AT(0) { *(.data .data.[A-Za-z0-9_$^]*) }
+	.bss    0 : AT(0) { *(.bss .bss.[A-Za-z0-9_$^]*) }
+
 	/DISCARD/ : { *(.discard) }
 }

From - Thu Nov 08 21:06:09 2018
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From: Sam Ravnborg <sam@ravnborg.org>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: Testing of function/data-sections on linux-2.6.35-rc4
Date: Fri, 23 Jul 2010 22:35:43 +0200
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Cc: Tim Abbott <tabbott@ksplice.com>, Tim Bird <tim.bird@am.sony.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	linux-kernel@vger.kernel.org,
	Matt Fleming <matt@console-pimps.org>,
	linux-arch@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	Michal Marek <mmarek@suse.cz>,
	Parisc List <linux-parisc@vger.kernel.org>
To: Denys Vlasenko <vda.linux@googlemail.com>
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> 
> Then, in order to also garbage-collect the sections, I added
> 
> LDFLAGS_vmlinux += --gc-sections
> 
> in top-level Makefile.
> 
> This requires the additional patch (linux-2.6.35-rc4-fsgs.patch)
> which adds KEEP(section) directives to kernel linker stripts.
> Otherwise, linker will discard some crucial sections.
> 

Changelog does not address why you need:

     -Map $@.ldmap

and what effect they have.

And it is obvious that some archs should consolidate a little more from
asm-generic/vmlinux.lds.h.
But that said this patch looks much better than the initial versions posted.

How do you determine which sections needs the KEEP()?
Worth documenting for future when we add new sections.

	Sam


--- linux-2.6.35-rc4.fs/Makefile
+++ linux-2.6.35-rc4-fsgs.obj/Makefile
@@ -610,6 +610,8 @@
 LDFLAGS_vmlinux	+= $(call ld-option, -X,)
 endif
 
+LDFLAGS_vmlinux += --gc-sections
+
 # Default kernel image to build when no specific target is given.
 # KBUILD_IMAGE may be overruled on the command line or
 # set in the environment
@@ -705,7 +707,7 @@
 # Rule to link vmlinux - also used during CONFIG_KALLSYMS
 # May be overridden by arch/$(ARCH)/Makefile
 quiet_cmd_vmlinux__ ?= LD      $@
-      cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \
+      cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ -Map $@.ldmap \
       -T $(vmlinux-lds) $(vmlinux-init)                          \
       --start-group $(vmlinux-main) --end-group                  \
       $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^)
--- linux-2.6.35-rc4.fs/arch/arm/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/arm/kernel/vmlinux.lds.S
@@ -157,7 +157,7 @@
 		. = ALIGN(32);
 		__start___ex_table = .;
 #ifdef CONFIG_MMU
-		*(__ex_table)
+		KEEP(*(__ex_table))
 #endif
 		__stop___ex_table = .;
 
--- linux-2.6.35-rc4.fs/arch/blackfin/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/blackfin/kernel/vmlinux.lds.S
@@ -51,7 +51,7 @@
 
 		. = ALIGN(16);
 		___start___ex_table = .;
-		*(__ex_table)
+		KEEP(*(__ex_table))
 		___stop___ex_table = .;
 
 		__etext = .;
--- linux-2.6.35-rc4.fs/arch/cris/boot/rescue/rescue_v32.lds
+++ linux-2.6.35-rc4-fsgs.obj/arch/cris/boot/rescue/rescue_v32.lds
@@ -36,7 +36,7 @@
 	/* Get rid of stuff from EXPORT_SYMBOL(foo). */
 	/DISCARD/ :
 	{
-	        *(__ksymtab_strings)
-	        *(__ksymtab)
+		KEEP(*(__ksymtab_strings))
+		*(__ksymtab)
 	}
 }
--- linux-2.6.35-rc4.fs/arch/cris/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/cris/kernel/vmlinux.lds.S
@@ -72,7 +72,7 @@
 	.init.setup : { INIT_SETUP(16) }
 #ifdef CONFIG_ETRAX_ARCH_V32
 	__start___param = .;
-	__param : { *(__param) }
+	__param : { KEEP(*(__param)) }
 	__stop___param = .;
 #endif
 	.initcall.init : {
@@ -88,7 +88,7 @@
 #ifdef CONFIG_BLK_DEV_INITRD
 	.init.ramfs : {
 		__initramfs_start = .;
-		*(.init.ramfs)
+		KEEP(*(.init.ramfs))
 		__initramfs_end = .;
 	}
 #endif
--- linux-2.6.35-rc4.fs/arch/h8300/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/h8300/kernel/vmlinux.lds.S
@@ -112,7 +112,7 @@
 	. = ALIGN(0x4) ;
 	INIT_SETUP(0x4)
 	___setup_start = .;
-		*(.init.setup)
+		KEEP(*(.init.setup))
 	. = ALIGN(0x4) ;
 	___setup_end = .;
 	INIT_CALLS
--- linux-2.6.35-rc4.fs/arch/m68knommu/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/m68knommu/kernel/vmlinux.lds.S
@@ -72,7 +72,7 @@
 
 		. = ALIGN(16);          /* Exception table              */
 		__start___ex_table = .;
-		*(__ex_table)
+		KEEP(*(__ex_table))
 		__stop___ex_table = .;
 
 		*(.rodata .rodata.*)
@@ -129,16 +129,16 @@
 
 		/* Kernel symbol table: GPL-future symbols */
 		__start___kcrctab_gpl_future = .;
-		*(__kcrctab_gpl_future)
+		KEEP(*(__kcrctab_gpl_future))
 		__stop___kcrctab_gpl_future = .;
 
 		/* Kernel symbol table: strings */
-		*(__ksymtab_strings)
+		KEEP(*(__ksymtab_strings))
 
 		/* Built-in module parameters */
 		. = ALIGN(4) ;
 		__start___param = .;
-		*(__param)
+		KEEP(*(__param))
 		__stop___param = .;
 
 		. = ALIGN(4) ;
--- linux-2.6.35-rc4.fs/arch/microblaze/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/microblaze/kernel/vmlinux.lds.S
@@ -122,7 +122,7 @@
 
 	.init.ramfs ALIGN(4096) : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
 		__initramfs_start = .;
-		*(.init.ramfs)
+		KEEP(*(.init.ramfs))
 		__initramfs_end = .;
 		. = ALIGN(4);
 		LONG(0);
--- linux-2.6.35-rc4.fs/arch/mn10300/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/mn10300/kernel/vmlinux.lds.S
@@ -51,7 +51,7 @@
   . = ALIGN(PAGE_SIZE);
   .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
   	__smp_locks = .;
-	*(.smp_locks)
+	KEEP(*(.smp_locks))
 	__smp_locks_end = .;
   }
 
@@ -62,9 +62,9 @@
   INIT_DATA_SECTION(16)
   . = ALIGN(4);
   __alt_instructions = .;
-  .altinstructions : { *(.altinstructions) }
+  .altinstructions : { KEEP(*(.altinstructions)) }
   __alt_instructions_end = .;
- .altinstr_replacement : { *(.altinstr_replacement) }
+ .altinstr_replacement : { KEEP(*(.altinstr_replacement)) }
   /* .exit.text is discard at runtime, not link time, to deal with references
      from .altinstructions and .eh_frame */
 	.exit.text : { EXIT_TEXT; }
--- linux-2.6.35-rc4.fs/arch/um/include/asm/common.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/um/include/asm/common.lds.S
@@ -76,10 +76,10 @@
   . = ALIGN(4);
   .altinstructions : {
 	__alt_instructions = .;
-	*(.altinstructions)
+	KEEP(*(.altinstructions))
 	__alt_instructions_end = .;
   }
-  .altinstr_replacement : { *(.altinstr_replacement) }
+  .altinstr_replacement : { KEEP(*(.altinstr_replacement)) }
   /* .exit.text is discard at runtime, not link time, to deal with references
      from .altinstructions and .eh_frame */
   .exit.text : { *(.exit.text) }
--- linux-2.6.35-rc4.fs/arch/x86/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/x86/kernel/vmlinux.lds.S
@@ -162,46 +162,46 @@
 
 	. = VSYSCALL_ADDR;
 	.vsyscall_0 : AT(VLOAD(.vsyscall_0)) {
-		*(.vsyscall_0)
+		KEEP(*(.vsyscall_0))
 	} :user
 
 	. = ALIGN(L1_CACHE_BYTES);
 	.vsyscall_fn : AT(VLOAD(.vsyscall_fn)) {
-		*(.vsyscall_fn)
+		KEEP(*(.vsyscall_fn))
 	}
 
 	. = ALIGN(L1_CACHE_BYTES);
 	.vsyscall_gtod_data : AT(VLOAD(.vsyscall_gtod_data)) {
-		*(.vsyscall_gtod_data)
+		KEEP(*(.vsyscall_gtod_data))
 	}
 
 	vsyscall_gtod_data = VVIRT(.vsyscall_gtod_data);
 	.vsyscall_clock : AT(VLOAD(.vsyscall_clock)) {
-		*(.vsyscall_clock)
+		KEEP(*(.vsyscall_clock))
 	}
 	vsyscall_clock = VVIRT(.vsyscall_clock);
 
 
 	.vsyscall_1 ADDR(.vsyscall_0) + 1024: AT(VLOAD(.vsyscall_1)) {
-		*(.vsyscall_1)
+		KEEP(*(.vsyscall_1))
 	}
 	.vsyscall_2 ADDR(.vsyscall_0) + 2048: AT(VLOAD(.vsyscall_2)) {
-		*(.vsyscall_2)
+		KEEP(*(.vsyscall_2))
 	}
 
 	.vgetcpu_mode : AT(VLOAD(.vgetcpu_mode)) {
-		*(.vgetcpu_mode)
+		KEEP(*(.vgetcpu_mode))
 	}
 	vgetcpu_mode = VVIRT(.vgetcpu_mode);
 
 	. = ALIGN(L1_CACHE_BYTES);
 	.jiffies : AT(VLOAD(.jiffies)) {
-		*(.jiffies)
+		KEEP(*(.jiffies))
 	}
 	jiffies = VVIRT(.jiffies);
 
 	.vsyscall_3 ADDR(.vsyscall_0) + 3072: AT(VLOAD(.vsyscall_3)) {
-		*(.vsyscall_3)
+		KEEP(*(.vsyscall_3))
 	}
 
 	. = __vsyscall_0 + PAGE_SIZE;
@@ -252,12 +252,12 @@
 	. = ALIGN(8);
 	.altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
 		__alt_instructions = .;
-		*(.altinstructions)
+		KEEP(*(.altinstructions))
 		__alt_instructions_end = .;
 	}
 
 	.altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
-		*(.altinstr_replacement)
+		KEEP(*(.altinstr_replacement))
 	}
 
 	/*
@@ -290,7 +290,7 @@
 	. = ALIGN(PAGE_SIZE);
 	.smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
 		__smp_locks = .;
-		*(.smp_locks)
+		KEEP(*(.smp_locks))
 		. = ALIGN(PAGE_SIZE);
 		__smp_locks_end = .;
 	}
--- linux-2.6.35-rc4.fs/arch/x86/vdso/vdso-layout.lds.S
+++ linux-2.6.35-rc4-fsgs.obj/arch/x86/vdso/vdso-layout.lds.S
@@ -34,8 +34,8 @@
 	      *(.gnu.linkonce.b.*)
 	}
 
-	.altinstructions	: { *(.altinstructions) }
-	.altinstr_replacement	: { *(.altinstr_replacement) }
+	.altinstructions	: { KEEP(*(.altinstructions)) }
+	.altinstr_replacement	: { KEEP(*(.altinstr_replacement)) }
 
 	/*
 	 * Align the actual code well away from the non-instruction data.
--- linux-2.6.35-rc4.fs/include/asm-generic/vmlinux.lds.h
+++ linux-2.6.35-rc4-fsgs.obj/include/asm-generic/vmlinux.lds.h
@@ -229,25 +229,25 @@
 	/* PCI quirks */						\
 	.pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start_pci_fixups_early) = .;		\
-		*(.pci_fixup_early)					\
+		KEEP(*(.pci_fixup_early))				\
 		VMLINUX_SYMBOL(__end_pci_fixups_early) = .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_header) = .;		\
-		*(.pci_fixup_header)					\
+		KEEP(*(.pci_fixup_header))				\
 		VMLINUX_SYMBOL(__end_pci_fixups_header) = .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_final) = .;		\
-		*(.pci_fixup_final)					\
+		KEEP(*(.pci_fixup_final))				\
 		VMLINUX_SYMBOL(__end_pci_fixups_final) = .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_enable) = .;		\
-		*(.pci_fixup_enable)					\
+		KEEP(*(.pci_fixup_enable))				\
 		VMLINUX_SYMBOL(__end_pci_fixups_enable) = .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_resume) = .;		\
-		*(.pci_fixup_resume)					\
+		KEEP(*(.pci_fixup_resume))				\
 		VMLINUX_SYMBOL(__end_pci_fixups_resume) = .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .;	\
-		*(.pci_fixup_resume_early)				\
+		KEEP(*(.pci_fixup_resume_early))			\
 		VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .;	\
 		VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .;		\
-		*(.pci_fixup_suspend)					\
+		KEEP(*(.pci_fixup_suspend))				\
 		VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .;		\
 	}								\
 									\
@@ -270,76 +270,76 @@
 	/* Kernel symbol table: Normal symbols */			\
 	__ksymtab         : AT(ADDR(__ksymtab) - LOAD_OFFSET) {		\
 		VMLINUX_SYMBOL(__start___ksymtab) = .;			\
-		*(__ksymtab)						\
+		KEEP(*(__ksymtab))					\
 		VMLINUX_SYMBOL(__stop___ksymtab) = .;			\
 	}								\
 									\
 	/* Kernel symbol table: GPL-only symbols */			\
 	__ksymtab_gpl     : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start___ksymtab_gpl) = .;		\
-		*(__ksymtab_gpl)					\
+		KEEP(*(__ksymtab_gpl))					\
 		VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .;		\
 	}								\
 									\
 	/* Kernel symbol table: Normal unused symbols */		\
 	__ksymtab_unused  : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start___ksymtab_unused) = .;		\
-		*(__ksymtab_unused)					\
+		KEEP(*(__ksymtab_unused))				\
 		VMLINUX_SYMBOL(__stop___ksymtab_unused) = .;		\
 	}								\
 									\
 	/* Kernel symbol table: GPL-only unused symbols */		\
 	__ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
 		VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .;	\
-		*(__ksymtab_unused_gpl)					\
+		KEEP(*(__ksymtab_unused_gpl))				\
 		VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .;	\
 	}								\
 									\
 	/* Kernel symbol table: GPL-future-only symbols */		\
 	__ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
 		VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .;	\
-		*(__ksymtab_gpl_future)					\
+		KEEP(*(__ksymtab_gpl_future))				\
 		VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .;	\
 	}								\
 									\
 	/* Kernel symbol table: Normal symbols */			\
 	__kcrctab         : AT(ADDR(__kcrctab) - LOAD_OFFSET) {		\
 		VMLINUX_SYMBOL(__start___kcrctab) = .;			\
-		*(__kcrctab)						\
+		KEEP(*(__kcrctab))					\
 		VMLINUX_SYMBOL(__stop___kcrctab) = .;			\
 	}								\
 									\
 	/* Kernel symbol table: GPL-only symbols */			\
 	__kcrctab_gpl     : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start___kcrctab_gpl) = .;		\
-		*(__kcrctab_gpl)					\
+		KEEP(*(__kcrctab_gpl))					\
 		VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .;		\
 	}								\
 									\
 	/* Kernel symbol table: Normal unused symbols */		\
 	__kcrctab_unused  : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start___kcrctab_unused) = .;		\
-		*(__kcrctab_unused)					\
+		KEEP(*(__kcrctab_unused))				\
 		VMLINUX_SYMBOL(__stop___kcrctab_unused) = .;		\
 	}								\
 									\
 	/* Kernel symbol table: GPL-only unused symbols */		\
 	__kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
 		VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .;	\
-		*(__kcrctab_unused_gpl)					\
+		KEEP(*(__kcrctab_unused_gpl))				\
 		VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .;	\
 	}								\
 									\
 	/* Kernel symbol table: GPL-future-only symbols */		\
 	__kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
 		VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .;	\
-		*(__kcrctab_gpl_future)					\
+		KEEP(*(__kcrctab_gpl_future))				\
 		VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .;	\
 	}								\
 									\
 	/* Kernel symbol table: strings */				\
         __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) {	\
-		*(__ksymtab_strings)					\
+		KEEP(*(__ksymtab_strings))				\
 	}								\
 									\
 	/* __*init sections */						\
@@ -356,7 +356,7 @@
 	/* Built-in module parameters. */				\
 	__param : AT(ADDR(__param) - LOAD_OFFSET) {			\
 		VMLINUX_SYMBOL(__start___param) = .;			\
-		*(__param)						\
+		KEEP(*(__param))					\
 		VMLINUX_SYMBOL(__stop___param) = .;			\
 		. = ALIGN((align));					\
 		VMLINUX_SYMBOL(__end_rodata) = .;			\
@@ -371,7 +371,7 @@
 #define SECURITY_INIT							\
 	.security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \
 		VMLINUX_SYMBOL(__security_initcall_start) = .;		\
-		*(.security_initcall.init) 				\
+		KEEP(*(.security_initcall.init))			\
 		VMLINUX_SYMBOL(__security_initcall_end) = .;		\
 	}
 
@@ -424,7 +424,7 @@
 #endif
 
 /* Section used for early init (in .S files) */
-#define HEAD_TEXT  *(.head.text)
+#define HEAD_TEXT  KEEP(*(.head.text))
 
 #define HEAD_TEXT_SECTION							\
 	.head.text : AT(ADDR(.head.text) - LOAD_OFFSET) {		\
@@ -438,7 +438,7 @@
 	. = ALIGN(align);						\
 	__ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {		\
 		VMLINUX_SYMBOL(__start___ex_table) = .;			\
-		*(__ex_table)						\
+		KEEP(*(__ex_table))					\
 		VMLINUX_SYMBOL(__stop___ex_table) = .;			\
 	}
 
@@ -591,29 +591,29 @@
 #define INIT_SETUP(initsetup_align)					\
 		. = ALIGN(initsetup_align);				\
 		VMLINUX_SYMBOL(__setup_start) = .;			\
-		*(.init.setup)						\
+		KEEP(*(.init.setup))					\
 		VMLINUX_SYMBOL(__setup_end) = .;
 
 #define INITCALLS							\
-	*(.initcallearly.init)						\
+	KEEP(*(.initcallearly.init))					\
 	VMLINUX_SYMBOL(__early_initcall_end) = .;			\
-  	*(.initcall0.init)						\
-  	*(.initcall0s.init)						\
-  	*(.initcall1.init)						\
-  	*(.initcall1s.init)						\
-  	*(.initcall2.init)						\
-  	*(.initcall2s.init)						\
-  	*(.initcall3.init)						\
-  	*(.initcall3s.init)						\
-  	*(.initcall4.init)						\
-  	*(.initcall4s.init)						\
-  	*(.initcall5.init)						\
-  	*(.initcall5s.init)						\
-	*(.initcallrootfs.init)						\
-  	*(.initcall6.init)						\
-  	*(.initcall6s.init)						\
-  	*(.initcall7.init)						\
-  	*(.initcall7s.init)
+	KEEP(*(.initcall0.init))					\
+	KEEP(*(.initcall0s.init))					\
+	KEEP(*(.initcall1.init))					\
+	KEEP(*(.initcall1s.init))					\
+	KEEP(*(.initcall2.init))					\
+	KEEP(*(.initcall2s.init))					\
+	KEEP(*(.initcall3.init))					\
+	KEEP(*(.initcall3s.init))					\
+	KEEP(*(.initcall4.init))					\
+	KEEP(*(.initcall4s.init))					\
+	KEEP(*(.initcall5.init))					\
+	KEEP(*(.initcall5s.init))					\
+	KEEP(*(.initcallrootfs.init))					\
+	KEEP(*(.initcall6.init))					\
+	KEEP(*(.initcall6s.init))					\
+	KEEP(*(.initcall7.init))					\
+	KEEP(*(.initcall7s.init))
 
 #define INIT_CALLS							\
 		VMLINUX_SYMBOL(__initcall_start) = .;			\
@@ -622,19 +622,19 @@
 
 #define CON_INITCALL							\
 		VMLINUX_SYMBOL(__con_initcall_start) = .;		\
-		*(.con_initcall.init)					\
+		KEEP(*(.con_initcall.init))				\
 		VMLINUX_SYMBOL(__con_initcall_end) = .;
 
 #define SECURITY_INITCALL						\
 		VMLINUX_SYMBOL(__security_initcall_start) = .;		\
-		*(.security_initcall.init)				\
+		KEEP(*(.security_initcall.init))			\
 		VMLINUX_SYMBOL(__security_initcall_end) = .;
 
 #ifdef CONFIG_BLK_DEV_INITRD
 #define INIT_RAM_FS							\
 	. = ALIGN(PAGE_SIZE);						\
 	VMLINUX_SYMBOL(__initramfs_start) = .;				\
-	*(.init.ramfs)							\
+	KEEP(*(.init.ramfs))						\
 	VMLINUX_SYMBOL(__initramfs_end) = .;
 #else
 #define INIT_RAM_FS

From - Thu Nov 08 21:06:09 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Denys Vlasenko <vda.linux@googlemail.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: Testing of function/data-sections on linux-2.6.35-rc4
Date: Mon, 26 Jul 2010 02:52:57 +0200
Lines: 358
Approved: news@gmane.org
Message-ID: <201007260252.57477.vda.linux@googlemail.com>
References: <201007181703.17022.vda.linux@googlemail.com> <20100723191055.GA27054@merkur.ravnborg.org>
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Cc: Tim Abbott <tabbott@ksplice.com>, Tim Bird <tim.bird@am.sony.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	linux-kernel@vger.kernel.org,
	Matt Fleming <matt@console-pimps.org>,
	linux-arch@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	Michal Marek <mmarek@suse.cz>,
	Parisc List <linux-parisc@vger.kernel.org>
To: Sam Ravnborg <sam@ravnborg.org>
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On Friday 23 July 2010 21:10, Sam Ravnborg wrote:
> > 
> > * modpost fix for 64k+ sections: linux-2.6.35-rc4-fs.modpost.patch
> >   This patch is in -mm, it still not reach mainline...
> > 
> 
> Some comments below - but noting fundamental.
>
> +	/* Fixup for more than 64k sections */
> +	info->num_sections = hdr->e_shnum;
> +	if (info->num_sections == 0) { /* more than 64k sections? */
> +		/* note: it doesn't need shndx2secindex() */
> +		info->num_sections = TO_NATIVE(sechdrs[0].sh_size);
> +	}
> I had to read the above twice to get it.
> How about something like this:
> 
> 	/* Fixup for more than 64k sections */
> 	if (hdr->e_shnum == 0) {
> 		/*
> 		 * There are more than 64k sections,
> 		 * read count from .sh_size.
> 		 * note: it doesn't need shndx2secindex()
> 		 */
> 		info->num_sections = TO_NATIVE(sechdrs[0].sh_size);
> 	}
> 	else {
> 		info->num_sections = hdr->e_shnum;
> 	}
> 
> 
> +	info->secindex_strings = hdr->e_shstrndx;
> +	if (info->secindex_strings == SHN_XINDEX)
> +		info->secindex_strings =
> +		    shndx2secindex(TO_NATIVE(sechdrs[0].sh_link));
> 
> Likewise here...

Done both.

...
> -	for (i = 1; i < hdr->e_shnum; i++) {
> -		const char *secstrings
> -			= (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
> +	secstrings = (void *)hdr + sechdrs[info->secindex_strings].sh_offset;
> 
> Moving this assignnet out of the loop is an unrelated
> but welcome change.

I take you are ok with it?

Please find updated patch below.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-- 
vda



--- linux-2.6.35-rc4/scripts/mod/file2alias.c
+++ linux-2.6.35-rc4-fs.modpost/scripts/mod/file2alias.c
@@ -884,16 +884,16 @@
 	char *zeros = NULL;
 
 	/* We're looking for a section relative symbol */
-	if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum)
+	if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
 		return;
 
 	/* Handle all-NULL symbols allocated into .bss */
-	if (info->sechdrs[sym->st_shndx].sh_type & SHT_NOBITS) {
+	if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
 		zeros = calloc(1, sym->st_size);
 		symval = zeros;
 	} else {
 		symval = (void *)info->hdr
-			+ info->sechdrs[sym->st_shndx].sh_offset
+			+ info->sechdrs[get_secindex(info, sym)].sh_offset
 			+ sym->st_value;
 	}
 
--- linux-2.6.35-rc4/scripts/mod/modpost.c
+++ linux-2.6.35-rc4-fs.modpost/scripts/mod/modpost.c
@@ -253,7 +253,7 @@
 	return export_unknown;
 }
 
-static enum export export_from_sec(struct elf_info *elf, Elf_Section sec)
+static enum export export_from_sec(struct elf_info *elf, unsigned int sec)
 {
 	if (sec == elf->export_sec)
 		return export_plain;
@@ -373,6 +373,8 @@
 	Elf_Ehdr *hdr;
 	Elf_Shdr *sechdrs;
 	Elf_Sym  *sym;
+	const char *secstrings;
+	unsigned int symtab_idx = ~0U, symtab_shndx_idx = ~0U;
 
 	hdr = grab_file(filename, &info->size);
 	if (!hdr) {
@@ -417,8 +419,27 @@
 		return 0;
 	}
 
+	if (hdr->e_shnum == 0) {
+		/*
+		 * There are more than 64k sections,
+		 * read count from .sh_size.
+		 * note: it doesn't need shndx2secindex()
+		 */
+		info->num_sections = TO_NATIVE(sechdrs[0].sh_size);
+	}
+	else {
+		info->num_sections = hdr->e_shnum;
+	}
+	if (hdr->e_shstrndx == SHN_XINDEX) {
+		info->secindex_strings =
+		    shndx2secindex(TO_NATIVE(sechdrs[0].sh_link));
+	}
+	else {
+		info->secindex_strings = hdr->e_shstrndx;
+	}
+
 	/* Fix endianness in section headers */
-	for (i = 0; i < hdr->e_shnum; i++) {
+	for (i = 0; i < info->num_sections; i++) {
 		sechdrs[i].sh_name      = TO_NATIVE(sechdrs[i].sh_name);
 		sechdrs[i].sh_type      = TO_NATIVE(sechdrs[i].sh_type);
 		sechdrs[i].sh_flags     = TO_NATIVE(sechdrs[i].sh_flags);
@@ -431,9 +452,8 @@
 		sechdrs[i].sh_entsize   = TO_NATIVE(sechdrs[i].sh_entsize);
 	}
 	/* Find symbol table. */
-	for (i = 1; i < hdr->e_shnum; i++) {
-		const char *secstrings
-			= (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
+	secstrings = (void *)hdr + sechdrs[info->secindex_strings].sh_offset;
+	for (i = 1; i < info->num_sections; i++) {
 		const char *secname;
 		int nobits = sechdrs[i].sh_type == SHT_NOBITS;
 
@@ -461,14 +481,26 @@
 		else if (strcmp(secname, "__ksymtab_gpl_future") == 0)
 			info->export_gpl_future_sec = i;
 
-		if (sechdrs[i].sh_type != SHT_SYMTAB)
-			continue;
+		if (sechdrs[i].sh_type == SHT_SYMTAB) {
+			unsigned int sh_link_idx;
+			symtab_idx = i;
+			info->symtab_start = (void *)hdr +
+			    sechdrs[i].sh_offset;
+			info->symtab_stop  = (void *)hdr +
+			    sechdrs[i].sh_offset + sechdrs[i].sh_size;
+			sh_link_idx = shndx2secindex(sechdrs[i].sh_link);
+			info->strtab       = (void *)hdr +
+			    sechdrs[sh_link_idx].sh_offset;
+		}
 
-		info->symtab_start = (void *)hdr + sechdrs[i].sh_offset;
-		info->symtab_stop  = (void *)hdr + sechdrs[i].sh_offset
-			                         + sechdrs[i].sh_size;
-		info->strtab       = (void *)hdr +
-			             sechdrs[sechdrs[i].sh_link].sh_offset;
+		/* 32bit section no. table? ("more than 64k sections") */
+		if (sechdrs[i].sh_type == SHT_SYMTAB_SHNDX) {
+			symtab_shndx_idx = i;
+			info->symtab_shndx_start = (void *)hdr +
+			    sechdrs[i].sh_offset;
+			info->symtab_shndx_stop  = (void *)hdr +
+			    sechdrs[i].sh_offset + sechdrs[i].sh_size;
+		}
 	}
 	if (!info->symtab_start)
 		fatal("%s has no symtab?\n", filename);
@@ -480,6 +512,21 @@
 		sym->st_value = TO_NATIVE(sym->st_value);
 		sym->st_size  = TO_NATIVE(sym->st_size);
 	}
+
+	if (symtab_shndx_idx != ~0U) {
+		Elf32_Word *p;
+		if (symtab_idx !=
+		    shndx2secindex(sechdrs[symtab_shndx_idx].sh_link))
+			fatal("%s: SYMTAB_SHNDX has bad sh_link: %u!=%u\n",
+			      filename,
+			      shndx2secindex(sechdrs[symtab_shndx_idx].sh_link),
+			      symtab_idx);
+		/* Fix endianness */
+		for (p = info->symtab_shndx_start; p < info->symtab_shndx_stop;
+		     p++)
+			*p = TO_NATIVE(*p);
+	}
+
 	return 1;
 }
 
@@ -514,7 +561,7 @@
 			       Elf_Sym *sym, const char *symname)
 {
 	unsigned int crc;
-	enum export export = export_from_sec(info, sym->st_shndx);
+	enum export export = export_from_sec(info, get_secindex(info, sym));
 
 	switch (sym->st_shndx) {
 	case SHN_COMMON:
@@ -656,19 +703,19 @@
 		return "(unknown)";
 }
 
-static const char *sec_name(struct elf_info *elf, int shndx)
+static const char *sec_name(struct elf_info *elf, int secindex)
 {
 	Elf_Shdr *sechdrs = elf->sechdrs;
 	return (void *)elf->hdr +
-	        elf->sechdrs[elf->hdr->e_shstrndx].sh_offset +
-	        sechdrs[shndx].sh_name;
+		elf->sechdrs[elf->secindex_strings].sh_offset +
+		sechdrs[secindex].sh_name;
 }
 
 static const char *sech_name(struct elf_info *elf, Elf_Shdr *sechdr)
 {
 	return (void *)elf->hdr +
-	        elf->sechdrs[elf->hdr->e_shstrndx].sh_offset +
-	        sechdr->sh_name;
+		elf->sechdrs[elf->secindex_strings].sh_offset +
+		sechdr->sh_name;
 }
 
 /* if sym is empty or point to a string
@@ -1047,11 +1094,14 @@
 	Elf_Sym *near = NULL;
 	Elf64_Sword distance = 20;
 	Elf64_Sword d;
+	unsigned int relsym_secindex;
 
 	if (relsym->st_name != 0)
 		return relsym;
+
+	relsym_secindex = get_secindex(elf, relsym);
 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
-		if (sym->st_shndx != relsym->st_shndx)
+		if (get_secindex(elf, sym) != relsym_secindex)
 			continue;
 		if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
 			continue;
@@ -1113,9 +1163,9 @@
 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
 		const char *symsec;
 
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
-		symsec = sec_name(elf, sym->st_shndx);
+		symsec = sec_name(elf, get_secindex(elf, sym));
 		if (strcmp(symsec, sec) != 0)
 			continue;
 		if (!is_valid_name(elf, sym))
@@ -1311,7 +1361,7 @@
 	const char *tosec;
 	const struct sectioncheck *mismatch;
 
-	tosec = sec_name(elf, sym->st_shndx);
+	tosec = sec_name(elf, get_secindex(elf, sym));
 	mismatch = section_mismatch(fromsec, tosec);
 	if (mismatch) {
 		Elf_Sym *to;
@@ -1339,7 +1389,7 @@
 				    Elf_Shdr *sechdr, Elf_Rela *r)
 {
 	Elf_Shdr *sechdrs = elf->sechdrs;
-	int section = sechdr->sh_info;
+	int section = shndx2secindex(sechdr->sh_info);
 
 	return (void *)elf->hdr + sechdrs[section].sh_offset +
 		r->r_offset - sechdrs[section].sh_addr;
@@ -1447,7 +1497,7 @@
 		r.r_addend = TO_NATIVE(rela->r_addend);
 		sym = elf->symtab_start + r_sym;
 		/* Skip special sections */
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
 		check_section_mismatch(modname, elf, &r, sym, fromsec);
 	}
@@ -1505,7 +1555,7 @@
 		}
 		sym = elf->symtab_start + r_sym;
 		/* Skip special sections */
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
 		check_section_mismatch(modname, elf, &r, sym, fromsec);
 	}
@@ -1530,7 +1580,7 @@
 	Elf_Shdr *sechdrs = elf->sechdrs;
 
 	/* Walk through all sections */
-	for (i = 0; i < elf->hdr->e_shnum; i++) {
+	for (i = 0; i < elf->num_sections; i++) {
 		check_section(modname, elf, &elf->sechdrs[i]);
 		/* We want to process only relocation sections and not .init */
 		if (sechdrs[i].sh_type == SHT_RELA)
--- linux-2.6.35-rc4/scripts/mod/modpost.h
+++ linux-2.6.35-rc4-fs.modpost/scripts/mod/modpost.h
@@ -129,7 +129,50 @@
 	const char   *strtab;
 	char	     *modinfo;
 	unsigned int modinfo_len;
+
+	/* support for 32bit section numbers */
+
+	unsigned int num_sections; /* max_secindex + 1 */
+	unsigned int secindex_strings;
+	/* if Nth symbol table entry has .st_shndx = SHN_XINDEX,
+	 * take shndx from symtab_shndx_start[N] instead */
+	Elf32_Word   *symtab_shndx_start;
+	Elf32_Word   *symtab_shndx_stop;
 };
+
+static inline int is_shndx_special(unsigned int i)
+{
+	return i != SHN_XINDEX && i >= SHN_LORESERVE && i <= SHN_HIRESERVE;
+}
+
+/* shndx is in [0..SHN_LORESERVE) U (SHN_HIRESERVE, 0xfffffff], thus:
+ * shndx == 0               <=> sechdrs[0]
+ * ......
+ * shndx == SHN_LORESERVE-1 <=> sechdrs[SHN_LORESERVE-1]
+ * shndx == SHN_HIRESERVE+1 <=> sechdrs[SHN_LORESERVE]
+ * shndx == SHN_HIRESERVE+2 <=> sechdrs[SHN_LORESERVE+1]
+ * ......
+ * fyi: sym->st_shndx is uint16, SHN_LORESERVE = ff00, SHN_HIRESERVE = ffff,
+ * so basically we map  0000..feff -> 0000..feff
+ *                      ff00..ffff -> (you are a bad boy, dont do it)
+ *                     10000..xxxx -> ff00..(xxxx-0x100)
+ */
+static inline unsigned int shndx2secindex(unsigned int i)
+{
+	if (i <= SHN_HIRESERVE)
+		return i;
+	return i - (SHN_HIRESERVE + 1 - SHN_LORESERVE);
+}
+
+/* Accessor for sym->st_shndx, hides ugliness of "64k sections" */
+static inline unsigned int get_secindex(const struct elf_info *info,
+					const Elf_Sym *sym)
+{
+	if (sym->st_shndx != SHN_XINDEX)
+		return sym->st_shndx;
+	return shndx2secindex(info->symtab_shndx_start[sym -
+						       info->symtab_start]);
+}
 
 /* file2alias.c */
 extern unsigned int cross_build;

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From: Denys Vlasenko <vda.linux@googlemail.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: Testing of function/data-sections on linux-2.6.35-rc4
Date: Mon, 26 Jul 2010 03:29:09 +0200
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Cc: Tim Abbott <tabbott@ksplice.com>, Tim Bird <tim.bird@am.sony.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	linux-kernel@vger.kernel.org,
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	Parisc List <linux-parisc@vger.kernel.org>
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On Friday 23 July 2010 22:24, Sam Ravnborg wrote:
> > * fix for kernel linker stripts: linux-2.6.35-rc4-fs.fix-kernel-linker-scripts.patch
> >   It makes _all_ linker scripts -ffunction/data-sections safe via:
> >   -       *(.data)
> >   +       *(.data .data.*)
> >   
> 
> This patch touches both the regular kernel linker scripts and the
> boot linker scripts.
> I would strongly prefer a split so you touched the boot linker
> scripts in a separate patch.

No problem.

> In addition the patch handles more sections than
> documented: rodata, bss, text.

Yes, that was assumed.

> The patch introduce the following syntax for input sections:
> 
>     *(.bss .bss.*)
>
> Where the kernel linker script would have one input
> section per line.
> Can we stick to the "layout" used in the kernel linker scripts?

Sure.


> The patch in addition in several places changes linker
> scripts that already uses the two-lines layout to a single line approach.
> These "fixes" should be omitted.

Reverted.

> Why do we need *(.bss .bss.*)?
> Does -fdata-sections introduce special .bss sectiosn too?

Yes, it does.

Please take a look at attached updated patches.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-- 
vda


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Content-Type: text/x-diff;
  charset="iso-8859-1";
  name="linux-2.6.35-rc4-fs-boot-linker-scripts.v2.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename="linux-2.6.35-rc4-fs-boot-linker-scripts.v2.patch"

--- linux-2.6.35-rc4/arch/alpha/boot/bootloader.lds
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/alpha/boot/bootloader.lds
@@ -4,17 +4,17 @@
 SECTIONS
 {
   . = 0x20000000;
-  .text : { *(.text) }
+  .text : { *(.text) *(.text.*) }
   _etext = .;
   PROVIDE (etext = .);
   .rodata : { *(.rodata) *(.rodata.*) }
-  .data : { *(.data) CONSTRUCTORS }
+  .data : { *(.data) *(.data.*) CONSTRUCTORS }
   .got : { *(.got) }
   .sdata : { *(.sdata) }
   _edata = .;
   PROVIDE (edata = .);
   .sbss : { *(.sbss) *(.scommon) }
-  .bss : { *(.bss) *(COMMON) }
+  .bss : { *(.bss) *(.bss.*) *(COMMON) }
   _end = . ;
   PROVIDE (end = .);
 
--- linux-2.6.35-rc4/arch/arm/boot/bootp/bootp.lds
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/arm/boot/bootp/bootp.lds
@@ -16,6 +16,7 @@
    _stext = .;
    *(.start)
    *(.text)
+   *(.text.*)
    initrd_size = initrd_end - initrd_start;
    _etext = .;
   }
--- linux-2.6.35-rc4/arch/cris/boot/compressed/decompress_v10.lds
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/cris/boot/compressed/decompress_v10.lds
@@ -13,6 +13,7 @@
 	{
 		_stext = . ;
 		*(.text)
+		*(.text.*)
 		*(.rodata)
 		*(.rodata.*)
 		_etext = . ;
@@ -20,11 +21,13 @@
 	.data :
 	{
 		*(.data)
+		*(.data.*)
 		_edata = . ;
 	} > dram
 	.bss :
 	{
 		*(.bss)
+		*(.bss.*)
 		_end = ALIGN( 0x10 ) ;
 	} > dram
 }
--- linux-2.6.35-rc4/arch/cris/boot/compressed/decompress_v32.lds
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/cris/boot/compressed/decompress_v32.lds
@@ -13,6 +13,7 @@
 	{
 		_stext = . ;
 		*(.text)
+		*(.text.*)
 		*(.rodata)
 		*(.rodata.*)
 		_etext = . ;
@@ -20,11 +21,13 @@
 	.data :
 	{
 		*(.data)
+		*(.data.*)
 		_edata = . ;
 	} > dram
 	.bss :
 	{
 		*(.bss)
+		*(.bss.*)
 		_end = ALIGN( 0x10 ) ;
 	} > dram
 }
--- linux-2.6.35-rc4/arch/cris/boot/rescue/rescue_v10.lds
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/cris/boot/rescue/rescue_v10.lds
@@ -10,11 +10,13 @@
 	{
 		stext = . ;
 		*(.text)
+		*(.text.*)
 		etext = . ;
 	} > flash
 	.data :
 	{
 		*(.data)
+		*(.data.*)
 		edata = . ;
 	} > flash
 }
--- linux-2.6.35-rc4/arch/cris/boot/rescue/rescue_v32.lds
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/cris/boot/rescue/rescue_v32.lds
@@ -17,6 +17,7 @@
 	{
 		_stext = . ;
 		*(.text)
+		*(.text.*)
 		*(.init.text)
 		*(.rodata)
 		*(.rodata.*)
@@ -25,12 +26,14 @@
 	.data :
 	{
 		*(.data)
+		*(.data.*)
 		_edata = . ;
 	} > bootblk
 	.bss :
 	{
 		_bss = . ;
 		*(.bss)
+		*(.bss.*)
 		_end = ALIGN( 0x10 ) ;
 	} > intmem
 
--- linux-2.6.35-rc4/arch/h8300/boot/compressed/vmlinux.lds
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/h8300/boot/compressed/vmlinux.lds
@@ -6,12 +6,14 @@
 	__text = .;
 	       *(.text..startup)
 	       *(.text)
+	       *(.text.*)
         __etext = . ;
         }
 
 	.rodata :
 	{
 		*(.rodata)
+		*(.rodata.*)
 	}
         .data :
 
--- linux-2.6.35-rc4/arch/h8300/boot/compressed/vmlinux.scr
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/h8300/boot/compressed/vmlinux.scr
@@ -4,6 +4,7 @@
 	_input_len = .;
 	LONG(_input_data_end - _input_data) _input_data = .;
 	*(.data)
+	*(.data.*)
 	_input_data_end = .;
 	}
 }
--- linux-2.6.35-rc4/arch/ia64/hp/sim/boot/bootloader.lds
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/ia64/hp/sim/boot/bootloader.lds
@@ -7,13 +7,13 @@
   . = 0x100000;
 
   _text = .;
-  .text : { *(__ivt_section) *(.text) }
+  .text : { *(__ivt_section) *(.text) *(.text.*) }
   _etext = .;
 
   /* Global data */
   _data = .;
   .rodata : { *(.rodata) *(.rodata.*) }
-  .data    : { *(.data) *(.gnu.linkonce.d*) CONSTRUCTORS }
+  .data    : { *(.data) *(.data.*) *(.gnu.linkonce.d*) CONSTRUCTORS }
   __gp = ALIGN (8) + 0x200000;
   .got           : { *(.got.plt) *(.got) }
   /* We want the small data sections together, so single-instruction offsets
@@ -24,7 +24,7 @@
 
   __bss_start = .;
   .sbss      : { *(.sbss) *(.scommon) }
-  .bss       : { *(.bss) *(COMMON) }
+  .bss       : { *(.bss) *(.bss.*) *(COMMON) }
   . = ALIGN(64 / 8);
   __bss_stop = .;
   _end = . ;
--- linux-2.6.35-rc4/arch/m32r/boot/compressed/vmlinux.lds.S
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/m32r/boot/compressed/vmlinux.lds.S
@@ -6,12 +6,12 @@
   . = CONFIG_MEMORY_START + 0x00400000;
 
   _text = .;
-  .text : { *(.text) } = 0
+  .text : { *(.text) *(.text.*) } = 0
   .rodata : { *(.rodata) *(.rodata.*) }
   _etext = .;
 
   . = ALIGN(32 / 8);
-  .data : { *(.data) }
+  .data : { *(.data) *(.data.*) }
   . = ALIGN(32 / 8);
   _got = .;
   .got  : { *(.got) _egot = .; *(.got.*) }
@@ -19,7 +19,7 @@
 
   . = ALIGN(32 / 8);
   __bss_start = .;
-  .bss : { *(.bss) *(.sbss) }
+  .bss : { *(.bss) *(.bss.*) *(.sbss) }
   . = ALIGN(32 / 8);
   _ebss = .;
   . = ALIGN(4096);
--- linux-2.6.35-rc4/arch/m32r/boot/compressed/vmlinux.scr
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/m32r/boot/compressed/vmlinux.scr
@@ -3,6 +3,7 @@
   .data : {
 	zimage_data = .;
 	*(.data)
+	*(.data.*)
 	zimage_data_end = .;
 	}
   zimage_len = zimage_data_end - zimage_data;
--- linux-2.6.35-rc4/arch/mn10300/boot/compressed/vmlinux.lds
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/mn10300/boot/compressed/vmlinux.lds
@@ -4,6 +4,7 @@
 	input_len = .;
 	LONG(input_data_end - input_data) input_data = .;
 	*(.data)
+	*(.data.*)
 	input_data_end = .;
 	}
 }
--- linux-2.6.35-rc4/arch/powerpc/boot/zImage.coff.lds.S
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/powerpc/boot/zImage.coff.lds.S
@@ -7,6 +7,7 @@
   .text      :
   {
     *(.text)
+    *(.text.*)
     *(.fixup)
   }
   _etext = .;
@@ -41,6 +42,7 @@
   {
    *(.sbss)
    *(.bss)
+   *(.bss.*)
   }
   _end = . ;
 
--- linux-2.6.35-rc4/arch/powerpc/boot/zImage.lds.S
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/powerpc/boot/zImage.lds.S
@@ -7,6 +7,7 @@
   .text      :
   {
     *(.text)
+    *(.text.*)
     *(.fixup)
   }
   _etext = .;
@@ -45,6 +46,7 @@
   {
    *(.sbss)
    *(.bss)
+   *(.bss.*)
   }
   . = ALIGN(4096);
   _end = . ;
--- linux-2.6.35-rc4/arch/powerpc/boot/zImage.ps3.lds.S
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/powerpc/boot/zImage.ps3.lds.S
@@ -21,6 +21,7 @@
   .text      :
   {
     *(.text)
+    *(.text.*)
     *(.fixup)
   }
   _etext = .;
@@ -44,6 +45,7 @@
   {
    *(.sbss)
    *(.bss)
+   *(.bss.*)
   }
   . = ALIGN(4096);
   _end = . ;
--- linux-2.6.35-rc4/arch/sh/boot/compressed/vmlinux.scr
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/sh/boot/compressed/vmlinux.scr
@@ -4,6 +4,7 @@
 	input_len = .;
 	LONG(input_data_end - input_data) input_data = .;
 	*(.data)
+	*(.data.*)
 	output_len = . - 4;
 	input_data_end = .;
 	}
--- linux-2.6.35-rc4/arch/x86/boot/setup.ld
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/x86/boot/setup.ld
@@ -20,7 +20,7 @@
 	.initdata	: { *(.initdata) }
 	__end_init = .;
 
-	.text		: { *(.text) }
+	.text		: { *(.text) *(.text.*) }
 	.text32		: { *(.text32) }
 
 	. = ALIGN(16);
@@ -46,6 +46,7 @@
 	{
 		__bss_start = .;
 		*(.bss)
+		*(.bss.*)
 		__bss_end = .;
 	}
 	. = ALIGN(16);
--- linux-2.6.35-rc4/arch/xtensa/boot/boot-elf/boot.lds.S
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/xtensa/boot/boot-elf/boot.lds.S
@@ -10,19 +10,21 @@
 	{
 		__reloc_start = . ;
 		_text_start = . ;
-		*(.literal .text.literal .text)
+		*(.literal .text.literal .text .text.*)
 		_text_end = . ;
 	}
 
 	.rodata ALIGN(0x04):
 	{
 		*(.rodata)
+		*(.rodata.*)
 		*(.rodata1)
 	}
 
 	.data ALIGN(0x04):
 	{
 		*(.data)
+		*(.data.*)
 		*(.data1)
 		*(.sdata)
 		*(.sdata2)
@@ -58,6 +60,7 @@
 		*(.scommon)
 		*(.dynbss)
 		*(.bss)
+		*(.bss.*)
 		__bss_end = .;
 	}
 	_end = .;
--- linux-2.6.35-rc4/arch/xtensa/boot/boot-redboot/boot.ld
+++ linux-2.6.35-rc4-fs-boot-linker-scripts/arch/xtensa/boot/boot-redboot/boot.ld
@@ -8,19 +8,21 @@
 	{
 		__reloc_start = . ;
 		_text_start = . ;
-		*(.literal .text.literal .text)
+		*(.literal .text.literal .text .text.*)
 		_text_end = . ;
 	}
 
 	.rodata ALIGN(0x04):
 	{
 		*(.rodata)
+		*(.rodata.*)
 		*(.rodata1)
 	}
 
 	.data ALIGN(0x04):
 	{
 		*(.data)
+		*(.data.*)
 		*(.data1)
 		*(.sdata)
 		*(.sdata2)
@@ -56,6 +58,7 @@
 		*(.scommon)
 		*(.dynbss)
 		*(.bss)
+		*(.bss.*)
 		__bss_end = .;
 	}
 	_end = .;

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  charset="iso-8859-1";
  name="linux-2.6.35-rc4-fs-kernel-linker-scripts.v2.patch"
Content-Transfer-Encoding: 7bit
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	filename="linux-2.6.35-rc4-fs-kernel-linker-scripts.v2.patch"

--- linux-2.6.35-rc4/arch/frv/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fs-kernel-linker-scripts/arch/frv/kernel/vmlinux.lds.S
@@ -114,7 +114,6 @@
 
   .sbss		: { *(.sbss .sbss.*) }
   .bss		: { *(.bss .bss.*) }
-  .bss..stack	: { *(.bss) }
 
   __bss_stop = .;
   _end = . ;
--- linux-2.6.35-rc4/arch/ia64/scripts/check-segrel.lds
+++ linux-2.6.35-rc4-fs-kernel-linker-scripts/arch/ia64/scripts/check-segrel.lds
@@ -1,9 +1,9 @@
 SECTIONS {
 	. = SIZEOF_HEADERS;
-	.rodata : { *(.rodata) } :ro
+	.rodata : { *(.rodata) *(.rodata.*) } :ro
 	.note : { *(.note*) }
 	. = 0xa0000;
-	.data : { *(.data) } :dat
+	.data : { *(.data) *(.data.*) } :dat
 	/DISCARD/ : { *(*) }
 }
 PHDRS {
--- linux-2.6.35-rc4/arch/m68knommu/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fs-kernel-linker-scripts/arch/m68knommu/kernel/vmlinux.lds.S
@@ -169,6 +169,7 @@
 		. = ALIGN(4);
 		_sbss = . ;
 		*(.bss)
+		*(.bss.*)
 		*(COMMON)
 		. = ALIGN(4) ;
 		_ebss = . ;
--- linux-2.6.35-rc4/arch/mips/lasat/image/romscript.normal
+++ linux-2.6.35-rc4-fs-kernel-linker-scripts/arch/mips/lasat/image/romscript.normal
@@ -12,6 +12,7 @@
   .data ALIGN(0x10) :
   {
     *(.data)
+    *(.data.*)
   }
   _image_start = ADDR(.data);
   _image_size = SIZEOF(.data);
--- linux-2.6.35-rc4/arch/parisc/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fs-kernel-linker-scripts/arch/parisc/kernel/vmlinux.lds.S
@@ -112,6 +112,7 @@
 	}
 	.bss : {
 		*(.bss)
+		*(.bss.*)
 		*(COMMON)
 	}
 	__bss_stop = .;
--- linux-2.6.35-rc4/arch/sh/kernel/vsyscall/vsyscall.lds.S
+++ linux-2.6.35-rc4-fs-kernel-linker-scripts/arch/sh/kernel/vsyscall/vsyscall.lds.S
@@ -35,7 +35,7 @@
 	 */
 	. = 0x400;
 
-	.text		: { *(.text) } 			:text	=0x90909090
+	.text		: { *(.text) *(.text.*) }	:text	=0x90909090
 	.note		: { *(.note.*) }		:text	:note
 	.eh_frame_hdr	: { *(.eh_frame_hdr ) }		:text	:eh_frame_hdr
 	.eh_frame	: {
--- linux-2.6.35-rc4/arch/x86/kernel/acpi/realmode/wakeup.lds.S
+++ linux-2.6.35-rc4-fs-kernel-linker-scripts/arch/x86/kernel/acpi/realmode/wakeup.lds.S
@@ -42,6 +42,7 @@
 	.bss :	{
 		__bss_start = .;
 		*(.bss)
+		*(.bss.*)
 		__bss_end = .;
 	}
 
--- linux-2.6.35-rc4/arch/x86/kernel/vmlinux.lds.S
+++ linux-2.6.35-rc4-fs-kernel-linker-scripts/arch/x86/kernel/vmlinux.lds.S
@@ -307,6 +307,7 @@
 		__bss_start = .;
 		*(.bss..page_aligned)
 		*(.bss)
+		*(.bss.*)
 		. = ALIGN(4);
 		__bss_stop = .;
 	}
--- linux-2.6.35-rc4/include/asm-generic/vmlinux.lds.h
+++ linux-2.6.35-rc4-fs-kernel-linker-scripts/include/asm-generic/vmlinux.lds.h
@@ -140,9 +140,22 @@
 #define TRACE_SYSCALLS()
 #endif
 
+/* .data.foo are generated by gcc itself with -fdata-sections,
+ * whereas double-dot sections (like .data..percpu) are generated
+ * by kernel's magic macros.
+ *
+ * arch/.../vmlinux.lds.S decides where to place various double-dot sections
+ * as needed by its arch, here DATA_DATA needs to be careful and collect
+ * only .data and .data.foo sections, skipping .data..foo
+ *
+ * Same goes for .text, .bss and .rodata. In case of .rodata, various
+ * .rodata.foo sections are generated by gcc even without -fdata-sections
+ */
+
 /* .data section */
 #define DATA_DATA							\
 	*(.data)							\
+	*(.data.[A-Za-z0-9_$^]*)					\
 	*(.ref.data)							\
 	DEV_KEEP(init.data)						\
 	DEV_KEEP(exit.data)						\
@@ -202,7 +215,8 @@
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
 		VMLINUX_SYMBOL(__start_rodata) = .;			\
-		*(.rodata) *(.rodata.*)					\
+		*(.rodata)						\
+		*(.rodata.[A-Za-z0-9_$^]*)				\
 		*(__vermagic)		/* Kernel version magic */	\
 		*(__markers_strings)	/* Markers: strings */		\
 		*(__tracepoints_strings)/* Tracepoints: strings */	\
@@ -369,6 +383,7 @@
 		ALIGN_FUNCTION();					\
 		*(.text.hot)						\
 		*(.text)						\
+		*(.text.[A-Za-z0-9_$^]*)				\
 		*(.ref.text)						\
 	DEV_KEEP(init.text)						\
 	DEV_KEEP(exit.text)						\
@@ -502,6 +517,7 @@
 		*(.bss..page_aligned)					\
 		*(.dynbss)						\
 		*(.bss)							\
+		*(.bss.[A-Za-z0-9_$^]*)					\
 		*(COMMON)						\
 	}
 

--Boundary-00=_lTOTMwjX+GKUVQ1--

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Subject: Re: Testing of function/data-sections on linux-2.6.35-rc4
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Hi Sam,

On Friday 23 July 2010 22:35, Sam Ravnborg wrote:
> > 
> > Then, in order to also garbage-collect the sections, I added
> > 
> > LDFLAGS_vmlinux += --gc-sections
> > 
> > in top-level Makefile.
> > 
> > This requires the additional patch (linux-2.6.35-rc4-fsgs.patch)
> > which adds KEEP(section) directives to kernel linker stripts.
> > Otherwise, linker will discard some crucial sections.
> > 
> 
> Changelog does not address why you need:
> 
>      -Map $@.ldmap
> 
> and what effect they have.

I didn't plan to push the last step (--gc-sections) to mainline yet.
Thus the patch has debugging stuff in it.


> And it is obvious that some archs should consolidate a little more from
> asm-generic/vmlinux.lds.h.
> But that said this patch looks much better than the initial versions posted.
> 
> How do you determine which sections needs the KEEP()?
> Worth documenting for future when we add new sections.

No problem, I will be adding comments at every KEEP() why it's needed.

-- 
vda

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From: Sam Ravnborg <sam@ravnborg.org>
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Subject: Re: Testing of function/data-sections on linux-2.6.35-rc4
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On Mon, Jul 26, 2010 at 02:52:57AM +0200, Denys Vlasenko wrote:
> On Friday 23 July 2010 21:10, Sam Ravnborg wrote:
> > > 
> > > * modpost fix for 64k+ sections: linux-2.6.35-rc4-fs.modpost.patch
> > >   This patch is in -mm, it still not reach mainline...
> > > 
> > 
> > Some comments below - but noting fundamental.
> >
> > +	/* Fixup for more than 64k sections */
> > +	info->num_sections = hdr->e_shnum;
> > +	if (info->num_sections == 0) { /* more than 64k sections? */
> > +		/* note: it doesn't need shndx2secindex() */
> > +		info->num_sections = TO_NATIVE(sechdrs[0].sh_size);
> > +	}
> > I had to read the above twice to get it.
> > How about something like this:
> > 
> > 	/* Fixup for more than 64k sections */
> > 	if (hdr->e_shnum == 0) {
> > 		/*
> > 		 * There are more than 64k sections,
> > 		 * read count from .sh_size.
> > 		 * note: it doesn't need shndx2secindex()
> > 		 */
> > 		info->num_sections = TO_NATIVE(sechdrs[0].sh_size);
> > 	}
> > 	else {
> > 		info->num_sections = hdr->e_shnum;
> > 	}
> > 
> > 
> > +	info->secindex_strings = hdr->e_shstrndx;
> > +	if (info->secindex_strings == SHN_XINDEX)
> > +		info->secindex_strings =
> > +		    shndx2secindex(TO_NATIVE(sechdrs[0].sh_link));
> > 
> > Likewise here...
> 
> Done both.
> 
> ...
> > -	for (i = 1; i < hdr->e_shnum; i++) {
> > -		const char *secstrings
> > -			= (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
> > +	secstrings = (void *)hdr + sechdrs[info->secindex_strings].sh_offset;
> > 
> > Moving this assignnet out of the loop is an unrelated
> > but welcome change.
> 
> I take you are ok with it?
> 
> Please find updated patch below.
> 
> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

If the patch get a proper changelog then it has my:

Acked-by: Sam Ravnborg <sam@ravnborg.org>

	Sam
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From - Thu Nov 08 21:06:10 2018
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Subject: Re: Testing of function/data-sections on linux-2.6.35-rc4
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On Mon, Jul 26, 2010 at 03:29:09AM +0200, Denys Vlasenko wrote:
> On Friday 23 July 2010 22:24, Sam Ravnborg wrote:
> > > * fix for kernel linker stripts: linux-2.6.35-rc4-fs.fix-kernel-linker-scripts.patch
> > >   It makes _all_ linker scripts -ffunction/data-sections safe via:
> > >   -       *(.data)
> > >   +       *(.data .data.*)
> > >   
> > 
> > This patch touches both the regular kernel linker scripts and the
> > boot linker scripts.
> > I would strongly prefer a split so you touched the boot linker
> > scripts in a separate patch.
> 
> No problem.
> 
> > In addition the patch handles more sections than
> > documented: rodata, bss, text.
> 
> Yes, that was assumed.
> 
> > The patch introduce the following syntax for input sections:
> > 
> >     *(.bss .bss.*)
> >
> > Where the kernel linker script would have one input
> > section per line.
> > Can we stick to the "layout" used in the kernel linker scripts?
> 
> Sure.
> 
> 
> > The patch in addition in several places changes linker
> > scripts that already uses the two-lines layout to a single line approach.
> > These "fixes" should be omitted.
> 
> Reverted.
> 
> > Why do we need *(.bss .bss.*)?
> > Does -fdata-sections introduce special .bss sectiosn too?
> 
> Yes, it does.
> 
> Please take a look at attached updated patches.
> 
> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

Looks better now - thanks.

With proper changelogs both patches has my:

Acked-by: Sam Ravnborg <sam@ravnborg.org>

	Sam

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From: Sam Ravnborg <sam@ravnborg.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.cross-arch
Subject: Re: Testing of function/data-sections on linux-2.6.35-rc4
Date: Mon, 26 Jul 2010 09:28:25 +0200
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Cc: Tim Abbott <tabbott@ksplice.com>, Tim Bird <tim.bird@am.sony.com>,
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To: Denys Vlasenko <vda.linux@googlemail.com>
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On Mon, Jul 26, 2010 at 03:31:34AM +0200, Denys Vlasenko wrote:
> Hi Sam,
> 
> On Friday 23 July 2010 22:35, Sam Ravnborg wrote:
> > > 
> > > Then, in order to also garbage-collect the sections, I added
> > > 
> > > LDFLAGS_vmlinux += --gc-sections
> > > 
> > > in top-level Makefile.
> > > 
> > > This requires the additional patch (linux-2.6.35-rc4-fsgs.patch)
> > > which adds KEEP(section) directives to kernel linker stripts.
> > > Otherwise, linker will discard some crucial sections.
> > > 
> > 
> > Changelog does not address why you need:
> > 
> >      -Map $@.ldmap
> > 
> > and what effect they have.
> 
> I didn't plan to push the last step (--gc-sections) to mainline yet.
> Thus the patch has debugging stuff in it.
> 
> 
> > And it is obvious that some archs should consolidate a little more from
> > asm-generic/vmlinux.lds.h.
> > But that said this patch looks much better than the initial versions posted.
> > 
> > How do you determine which sections needs the KEEP()?
> > Worth documenting for future when we add new sections.
> 
> No problem, I will be adding comments at every KEEP() why it's needed.

A general comment in vmlinux.lds.h and a careful explanation
in the changelog should be enough.

You should not comment each of the KEEP().

	Sam
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From - Thu Nov 08 21:06:10 2018
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From: Denys Vlasenko <vda.linux@googlemail.com>
Newsgroups: gmane.linux.kbuild.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 0/4] function/data-sections
Date: Thu, 29 Jul 2010 01:47:52 +0200
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Cc: lkml <linux-kernel@vger.kernel.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	Tim Abbott <tabbott@ksplice.com>,
	Tim Bird <tim.bird@am.sony.com>,
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To: Michal Marek <mmarek@suse.cz>,
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Hi Michal,

Please take this patch series onto linux-kbuild.

Most of work needed for working -ffunction-sections -fdata-sections build
is already in the mainline, but a few bits are still missing.
In order to have a working kernel with this make invocation:
    make KCFLAGS="-ffunction-sections -fdata-sections"
we need these patches:

modpost: support objects with more than 64k sections
    This patch is in -mm, it still did not reach mainline,
    thus resending. Sam suggested some readability improvements.
module linker script: coalesce function and data sections
kernel linker stripts: accomodate function and data sections
boot linker stripts: accomodate function and data sections

Please see individual patches for more detailed changelogs.

A rough idea what sort of size savings are achievable
with section garbage collection:
Kernel:
   text   data    bss     dec    hex filename
8299299 857324 785348 9941971 97b3d3 2.6.35-rc4/vmlinux
7566908 832388 717844 9117140 8b1dd4 2.6.35-rc4-fsgs/vmlinux
  -9.2%  -2.9%  -9.0%   -8.6%
The largest module in the build:
 451009  54640   2224  507873  7bfe1 2.6.35-rc4/fs/xfs/xfs.ko
 450521  54292   2202  507015  7bc87 2.6.35-rc4-fsgs/fs/xfs/xfs.ko
(negligible size change since section garbage collection
for modules is not done. TODO: figure out how to do it)

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>


Denys Vlasenko (4):
  modpost: support objects with more than 64k sections
  module linker script: coalesce sections
  kernel linker stripts: accomodate function and data sections
  boot linker stripts: accomodate function and data sections

 arch/alpha/boot/bootloader.lds               |    6 +-
 arch/arm/boot/bootp/bootp.lds                |    1 +
 arch/cris/boot/compressed/decompress_v10.lds |    3 +
 arch/cris/boot/compressed/decompress_v32.lds |    3 +
 arch/cris/boot/rescue/rescue_v10.lds         |    2 +
 arch/cris/boot/rescue/rescue_v32.lds         |    3 +
 arch/frv/kernel/vmlinux.lds.S                |    1 -
 arch/h8300/boot/compressed/vmlinux.lds       |    2 +
 arch/h8300/boot/compressed/vmlinux.scr       |    1 +
 arch/ia64/hp/sim/boot/bootloader.lds         |    6 +-
 arch/ia64/scripts/check-segrel.lds           |    4 +-
 arch/m32r/boot/compressed/vmlinux.lds.S      |    6 +-
 arch/m32r/boot/compressed/vmlinux.scr        |    1 +
 arch/m68knommu/kernel/vmlinux.lds.S          |    1 +
 arch/mips/lasat/image/romscript.normal       |    1 +
 arch/mn10300/boot/compressed/vmlinux.lds     |    1 +
 arch/parisc/kernel/vmlinux.lds.S             |    1 +
 arch/powerpc/boot/zImage.coff.lds.S          |    2 +
 arch/powerpc/boot/zImage.lds.S               |    2 +
 arch/powerpc/boot/zImage.ps3.lds.S           |    2 +
 arch/sh/boot/compressed/vmlinux.scr          |    1 +
 arch/sh/kernel/vsyscall/vsyscall.lds.S       |    2 +-
 arch/x86/boot/setup.ld                       |    3 +-
 arch/x86/kernel/acpi/realmode/wakeup.lds.S   |    1 +
 arch/x86/kernel/vmlinux.lds.S                |    1 +
 arch/xtensa/boot/boot-elf/boot.lds.S         |    5 +-
 arch/xtensa/boot/boot-redboot/boot.ld        |    5 +-
 include/asm-generic/vmlinux.lds.h            |   18 ++++-
 scripts/mod/file2alias.c                     |    6 +-
 scripts/mod/modpost.c                        |  102 +++++++++++++++++++-------
 scripts/mod/modpost.h                        |   43 +++++++++++
 scripts/module-common.lds                    |   23 ++++++
 32 files changed, 213 insertions(+), 46 deletions(-)

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From: Denys Vlasenko <vda.linux@googlemail.com>
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Subject: [PATCH 3/4] kernel linker stripts: accomodate function and data sections
Date: Thu, 29 Jul 2010 01:47:55 +0200
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Cc: lkml <linux-kernel@vger.kernel.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	Tim Abbott <tabbott@ksplice.com>,
	Tim Bird <tim.bird@am.sony.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
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	Arnd Bergmann <arnd@arndb.de>,
	Anders Kaseorg <andersk@mit.edu>,
	Andi Kleen <andi@firstfloor.org>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Denys Vlasenko <vda.linux@googlemail.com>
To: Michal Marek <mmarek@suse.cz>,
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gcc -ffunction-sections -fdata-sections places each function foo
into separate section .text.foo, and every data object bar into
separate section .data.bar, .rodata.bar or .bss.bar.

Kernel linker scripts were not ready for this and linker heuristics
for orphaned sections were not good enough to result in bootable
kernel.

This fix adds *(.text.*), *(.data.*) etc patterns
directly after corresponding *(.text), *(.data) etc patterns
in all kernel linker scripts. Boot scripts will be handled
in the next fix.

include/asm-generic/vmlinux.lds.h is a little bit more complicated.
It needs to avoid collecting special kernel sections
by using more restrictive patterns like *(.text.[A-Za-z0-9_$^]*)
instead of simplistic *(.text.*): special kernel sections like
.text..page_aligned contain double dots and won't be accidentally
matched by them.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
---
 arch/frv/kernel/vmlinux.lds.S              |    1 -
 arch/ia64/scripts/check-segrel.lds         |    4 ++--
 arch/m68knommu/kernel/vmlinux.lds.S        |    1 +
 arch/mips/lasat/image/romscript.normal     |    1 +
 arch/parisc/kernel/vmlinux.lds.S           |    1 +
 arch/sh/kernel/vsyscall/vsyscall.lds.S     |    2 +-
 arch/x86/kernel/acpi/realmode/wakeup.lds.S |    1 +
 arch/x86/kernel/vmlinux.lds.S              |    1 +
 include/asm-generic/vmlinux.lds.h          |   18 +++++++++++++++++-
 9 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/arch/frv/kernel/vmlinux.lds.S b/arch/frv/kernel/vmlinux.lds.S
index 8b973f3..9949f1a 100644
--- a/arch/frv/kernel/vmlinux.lds.S
+++ b/arch/frv/kernel/vmlinux.lds.S
@@ -114,7 +114,6 @@ SECTIONS
 
   .sbss		: { *(.sbss .sbss.*) }
   .bss		: { *(.bss .bss.*) }
-  .bss..stack	: { *(.bss) }
 
   __bss_stop = .;
   _end = . ;
diff --git a/arch/ia64/scripts/check-segrel.lds b/arch/ia64/scripts/check-segrel.lds
index 85a0d54..1e23df4 100644
--- a/arch/ia64/scripts/check-segrel.lds
+++ b/arch/ia64/scripts/check-segrel.lds
@@ -1,9 +1,9 @@
 SECTIONS {
 	. = SIZEOF_HEADERS;
-	.rodata : { *(.rodata) } :ro
+	.rodata : { *(.rodata) *(.rodata.*) } :ro
 	.note : { *(.note*) }
 	. = 0xa0000;
-	.data : { *(.data) } :dat
+	.data : { *(.data) *(.data.*) } :dat
 	/DISCARD/ : { *(*) }
 }
 PHDRS {
diff --git a/arch/m68knommu/kernel/vmlinux.lds.S b/arch/m68knommu/kernel/vmlinux.lds.S
index a91b271..c095a5b 100644
--- a/arch/m68knommu/kernel/vmlinux.lds.S
+++ b/arch/m68knommu/kernel/vmlinux.lds.S
@@ -169,6 +169,7 @@ SECTIONS {
 		. = ALIGN(4);
 		_sbss = . ;
 		*(.bss)
+		*(.bss.*)
 		*(COMMON)
 		. = ALIGN(4) ;
 		_ebss = . ;
diff --git a/arch/mips/lasat/image/romscript.normal b/arch/mips/lasat/image/romscript.normal
index 0864c96..408e5ad 100644
--- a/arch/mips/lasat/image/romscript.normal
+++ b/arch/mips/lasat/image/romscript.normal
@@ -12,6 +12,7 @@ SECTIONS
   .data ALIGN(0x10) :
   {
     *(.data)
+    *(.data.*)
   }
   _image_start = ADDR(.data);
   _image_size = SIZEOF(.data);
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index d64a6bb..56d472c 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -112,6 +112,7 @@ SECTIONS
 	}
 	.bss : {
 		*(.bss)
+		*(.bss.*)
 		*(COMMON)
 	}
 	__bss_stop = .;
diff --git a/arch/sh/kernel/vsyscall/vsyscall.lds.S b/arch/sh/kernel/vsyscall/vsyscall.lds.S
index 6d59ee7..19ee0cb 100644
--- a/arch/sh/kernel/vsyscall/vsyscall.lds.S
+++ b/arch/sh/kernel/vsyscall/vsyscall.lds.S
@@ -35,7 +35,7 @@ SECTIONS
 	 */
 	. = 0x400;
 
-	.text		: { *(.text) } 			:text	=0x90909090
+	.text		: { *(.text) *(.text.*) }	:text	=0x90909090
 	.note		: { *(.note.*) }		:text	:note
 	.eh_frame_hdr	: { *(.eh_frame_hdr ) }		:text	:eh_frame_hdr
 	.eh_frame	: {
diff --git a/arch/x86/kernel/acpi/realmode/wakeup.lds.S b/arch/x86/kernel/acpi/realmode/wakeup.lds.S
index 060fff8..38f18e8 100644
--- a/arch/x86/kernel/acpi/realmode/wakeup.lds.S
+++ b/arch/x86/kernel/acpi/realmode/wakeup.lds.S
@@ -42,6 +42,7 @@ SECTIONS
 	.bss :	{
 		__bss_start = .;
 		*(.bss)
+		*(.bss.*)
 		__bss_end = .;
 	}
 
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index d0bb522..eb5b2a6 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -307,6 +307,7 @@ SECTIONS
 		__bss_start = .;
 		*(.bss..page_aligned)
 		*(.bss)
+		*(.bss.*)
 		. = ALIGN(4);
 		__bss_stop = .;
 	}
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 030a954..079895a 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -146,9 +146,22 @@
 #define TRACE_SYSCALLS()
 #endif
 
+/* .data.foo are generated by gcc itself with -fdata-sections,
+ * whereas double-dot sections (like .data..percpu) are generated
+ * by kernel's magic macros.
+ *
+ * arch/.../vmlinux.lds.S decides where to place various double-dot sections
+ * as needed by its arch, here DATA_DATA needs to be careful and collect
+ * only .data and .data.foo sections, skipping .data..foo
+ *
+ * Same goes for .text, .bss and .rodata. In case of .rodata, various
+ * .rodata.foo sections are generated by gcc even without -fdata-sections
+ */
+
 /* .data section */
 #define DATA_DATA							\
 	*(.data)							\
+	*(.data.[A-Za-z0-9_$^]*)					\
 	*(.ref.data)							\
 	DEV_KEEP(init.data)						\
 	DEV_KEEP(exit.data)						\
@@ -212,7 +225,8 @@
 	. = ALIGN((align));						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
 		VMLINUX_SYMBOL(__start_rodata) = .;			\
-		*(.rodata) *(.rodata.*)					\
+		*(.rodata)						\
+		*(.rodata.[A-Za-z0-9_$^]*)				\
 		*(__vermagic)		/* Kernel version magic */	\
 		*(__markers_strings)	/* Markers: strings */		\
 		*(__tracepoints_strings)/* Tracepoints: strings */	\
@@ -379,6 +393,7 @@
 		ALIGN_FUNCTION();					\
 		*(.text.hot)						\
 		*(.text)						\
+		*(.text.[A-Za-z0-9_$^]*)				\
 		*(.ref.text)						\
 	DEV_KEEP(init.text)						\
 	DEV_KEEP(exit.text)						\
@@ -512,6 +527,7 @@
 		*(.bss..page_aligned)					\
 		*(.dynbss)						\
 		*(.bss)							\
+		*(.bss.[A-Za-z0-9_$^]*)					\
 		*(COMMON)						\
 	}
 
-- 
1.6.2.4

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From: Denys Vlasenko <vda.linux@googlemail.com>
Newsgroups: gmane.linux.kbuild.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 4/4] boot linker stripts: accomodate function and data sections
Date: Thu, 29 Jul 2010 01:47:56 +0200
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Cc: lkml <linux-kernel@vger.kernel.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	Tim Abbott <tabbott@ksplice.com>,
	Tim Bird <tim.bird@am.sony.com>,
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	Anders Kaseorg <andersk@mit.edu>,
	Andi Kleen <andi@firstfloor.org>,
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	Denys Vlasenko <vda.linux@googlemail.com>
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gcc -ffunction-sections -fdata-sections places each function foo
into separate section .text.foo, and every data object bar into
separate section .data.bar, .rodata.bar or .bss.bar.

Boot linker scripts were not ready for this.

This fix adds *(.text.*), *(.data.*) etc patterns
directly after corresponding *(.text), *(.data) etc patterns
in all boot linker scripts.

This may be unnecessary, but I want to be
function and data section-clean in all linker scripts,
including boot ones.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
---
 arch/alpha/boot/bootloader.lds               |    6 +++---
 arch/arm/boot/bootp/bootp.lds                |    1 +
 arch/cris/boot/compressed/decompress_v10.lds |    3 +++
 arch/cris/boot/compressed/decompress_v32.lds |    3 +++
 arch/cris/boot/rescue/rescue_v10.lds         |    2 ++
 arch/cris/boot/rescue/rescue_v32.lds         |    3 +++
 arch/h8300/boot/compressed/vmlinux.lds       |    2 ++
 arch/h8300/boot/compressed/vmlinux.scr       |    1 +
 arch/ia64/hp/sim/boot/bootloader.lds         |    6 +++---
 arch/m32r/boot/compressed/vmlinux.lds.S      |    6 +++---
 arch/m32r/boot/compressed/vmlinux.scr        |    1 +
 arch/mn10300/boot/compressed/vmlinux.lds     |    1 +
 arch/powerpc/boot/zImage.coff.lds.S          |    2 ++
 arch/powerpc/boot/zImage.lds.S               |    2 ++
 arch/powerpc/boot/zImage.ps3.lds.S           |    2 ++
 arch/sh/boot/compressed/vmlinux.scr          |    1 +
 arch/x86/boot/setup.ld                       |    3 ++-
 arch/xtensa/boot/boot-elf/boot.lds.S         |    5 ++++-
 arch/xtensa/boot/boot-redboot/boot.ld        |    5 ++++-
 19 files changed, 43 insertions(+), 12 deletions(-)

diff --git a/arch/alpha/boot/bootloader.lds b/arch/alpha/boot/bootloader.lds
index 31c081c..ff5374d 100644
--- a/arch/alpha/boot/bootloader.lds
+++ b/arch/alpha/boot/bootloader.lds
@@ -4,17 +4,17 @@ printk = srm_printk;
 SECTIONS
 {
   . = 0x20000000;
-  .text : { *(.text) }
+  .text : { *(.text) *(.text.*) }
   _etext = .;
   PROVIDE (etext = .);
   .rodata : { *(.rodata) *(.rodata.*) }
-  .data : { *(.data) CONSTRUCTORS }
+  .data : { *(.data) *(.data.*) CONSTRUCTORS }
   .got : { *(.got) }
   .sdata : { *(.sdata) }
   _edata = .;
   PROVIDE (edata = .);
   .sbss : { *(.sbss) *(.scommon) }
-  .bss : { *(.bss) *(COMMON) }
+  .bss : { *(.bss) *(.bss.*) *(COMMON) }
   _end = . ;
   PROVIDE (end = .);
 
diff --git a/arch/arm/boot/bootp/bootp.lds b/arch/arm/boot/bootp/bootp.lds
index fc54394..14be7ff 100644
--- a/arch/arm/boot/bootp/bootp.lds
+++ b/arch/arm/boot/bootp/bootp.lds
@@ -16,6 +16,7 @@ SECTIONS
    _stext = .;
    *(.start)
    *(.text)
+   *(.text.*)
    initrd_size = initrd_end - initrd_start;
    _etext = .;
   }
diff --git a/arch/cris/boot/compressed/decompress_v10.lds b/arch/cris/boot/compressed/decompress_v10.lds
index e80f459..d6022d9 100644
--- a/arch/cris/boot/compressed/decompress_v10.lds
+++ b/arch/cris/boot/compressed/decompress_v10.lds
@@ -13,6 +13,7 @@ SECTIONS
 	{
 		_stext = . ;
 		*(.text)
+		*(.text.*)
 		*(.rodata)
 		*(.rodata.*)
 		_etext = . ;
@@ -20,11 +21,13 @@ SECTIONS
 	.data :
 	{
 		*(.data)
+		*(.data.*)
 		_edata = . ;
 	} > dram
 	.bss :
 	{
 		*(.bss)
+		*(.bss.*)
 		_end = ALIGN( 0x10 ) ;
 	} > dram
 }
diff --git a/arch/cris/boot/compressed/decompress_v32.lds b/arch/cris/boot/compressed/decompress_v32.lds
index 3c837fe..b5cfeb4 100644
--- a/arch/cris/boot/compressed/decompress_v32.lds
+++ b/arch/cris/boot/compressed/decompress_v32.lds
@@ -13,6 +13,7 @@ SECTIONS
 	{
 		_stext = . ;
 		*(.text)
+		*(.text.*)
 		*(.rodata)
 		*(.rodata.*)
 		_etext = . ;
@@ -20,11 +21,13 @@ SECTIONS
 	.data :
 	{
 		*(.data)
+		*(.data.*)
 		_edata = . ;
 	} > dram
 	.bss :
 	{
 		*(.bss)
+		*(.bss.*)
 		_end = ALIGN( 0x10 ) ;
 	} > dram
 }
diff --git a/arch/cris/boot/rescue/rescue_v10.lds b/arch/cris/boot/rescue/rescue_v10.lds
index 0b52a94..42b03a3 100644
--- a/arch/cris/boot/rescue/rescue_v10.lds
+++ b/arch/cris/boot/rescue/rescue_v10.lds
@@ -10,11 +10,13 @@ SECTIONS
 	{
 		stext = . ;
 		*(.text)
+		*(.text.*)
 		etext = . ;
 	} > flash
 	.data :
 	{
 		*(.data)
+		*(.data.*)
 		edata = . ;
 	} > flash
 }
diff --git a/arch/cris/boot/rescue/rescue_v32.lds b/arch/cris/boot/rescue/rescue_v32.lds
index 8ac646b..440ea40 100644
--- a/arch/cris/boot/rescue/rescue_v32.lds
+++ b/arch/cris/boot/rescue/rescue_v32.lds
@@ -17,6 +17,7 @@ SECTIONS
 	{
 		_stext = . ;
 		*(.text)
+		*(.text.*)
 		*(.init.text)
 		*(.rodata)
 		*(.rodata.*)
@@ -25,12 +26,14 @@ SECTIONS
 	.data :
 	{
 		*(.data)
+		*(.data.*)
 		_edata = . ;
 	} > bootblk
 	.bss :
 	{
 		_bss = . ;
 		*(.bss)
+		*(.bss.*)
 		_end = ALIGN( 0x10 ) ;
 	} > intmem
 
diff --git a/arch/h8300/boot/compressed/vmlinux.lds b/arch/h8300/boot/compressed/vmlinux.lds
index a0a3a0e..6896c9a 100644
--- a/arch/h8300/boot/compressed/vmlinux.lds
+++ b/arch/h8300/boot/compressed/vmlinux.lds
@@ -6,12 +6,14 @@ SECTIONS
 	__text = .;
 	       *(.text..startup)
 	       *(.text)
+	       *(.text.*)
         __etext = . ;
         }
 
 	.rodata :
 	{
 		*(.rodata)
+		*(.rodata.*)
 	}
         .data :
 
diff --git a/arch/h8300/boot/compressed/vmlinux.scr b/arch/h8300/boot/compressed/vmlinux.scr
index a0f6962..f4cfb3f 100644
--- a/arch/h8300/boot/compressed/vmlinux.scr
+++ b/arch/h8300/boot/compressed/vmlinux.scr
@@ -4,6 +4,7 @@ SECTIONS
 	_input_len = .;
 	LONG(_input_data_end - _input_data) _input_data = .;
 	*(.data)
+	*(.data.*)
 	_input_data_end = .;
 	}
 }
diff --git a/arch/ia64/hp/sim/boot/bootloader.lds b/arch/ia64/hp/sim/boot/bootloader.lds
index 3977f25..56bf12c 100644
--- a/arch/ia64/hp/sim/boot/bootloader.lds
+++ b/arch/ia64/hp/sim/boot/bootloader.lds
@@ -7,13 +7,13 @@ SECTIONS
   . = 0x100000;
 
   _text = .;
-  .text : { *(__ivt_section) *(.text) }
+  .text : { *(__ivt_section) *(.text) *(.text.*) }
   _etext = .;
 
   /* Global data */
   _data = .;
   .rodata : { *(.rodata) *(.rodata.*) }
-  .data    : { *(.data) *(.gnu.linkonce.d*) CONSTRUCTORS }
+  .data    : { *(.data) *(.data.*) *(.gnu.linkonce.d*) CONSTRUCTORS }
   __gp = ALIGN (8) + 0x200000;
   .got           : { *(.got.plt) *(.got) }
   /* We want the small data sections together, so single-instruction offsets
@@ -24,7 +24,7 @@ SECTIONS
 
   __bss_start = .;
   .sbss      : { *(.sbss) *(.scommon) }
-  .bss       : { *(.bss) *(COMMON) }
+  .bss       : { *(.bss) *(.bss.*) *(COMMON) }
   . = ALIGN(64 / 8);
   __bss_stop = .;
   _end = . ;
diff --git a/arch/m32r/boot/compressed/vmlinux.lds.S b/arch/m32r/boot/compressed/vmlinux.lds.S
index dd11963..d51580e 100644
--- a/arch/m32r/boot/compressed/vmlinux.lds.S
+++ b/arch/m32r/boot/compressed/vmlinux.lds.S
@@ -6,12 +6,12 @@ SECTIONS
   . = CONFIG_MEMORY_START + 0x00400000;
 
   _text = .;
-  .text : { *(.text) } = 0
+  .text : { *(.text) *(.text.*) } = 0
   .rodata : { *(.rodata) *(.rodata.*) }
   _etext = .;
 
   . = ALIGN(32 / 8);
-  .data : { *(.data) }
+  .data : { *(.data) *(.data.*) }
   . = ALIGN(32 / 8);
   _got = .;
   .got  : { *(.got) _egot = .; *(.got.*) }
@@ -19,7 +19,7 @@ SECTIONS
 
   . = ALIGN(32 / 8);
   __bss_start = .;
-  .bss : { *(.bss) *(.sbss) }
+  .bss : { *(.bss) *(.bss.*) *(.sbss) }
   . = ALIGN(32 / 8);
   _ebss = .;
   . = ALIGN(4096);
diff --git a/arch/m32r/boot/compressed/vmlinux.scr b/arch/m32r/boot/compressed/vmlinux.scr
index 924c799..253eff1 100644
--- a/arch/m32r/boot/compressed/vmlinux.scr
+++ b/arch/m32r/boot/compressed/vmlinux.scr
@@ -3,6 +3,7 @@ SECTIONS
   .data : {
 	zimage_data = .;
 	*(.data)
+	*(.data.*)
 	zimage_data_end = .;
 	}
   zimage_len = zimage_data_end - zimage_data;
diff --git a/arch/mn10300/boot/compressed/vmlinux.lds b/arch/mn10300/boot/compressed/vmlinux.lds
index a084903..3e3e043 100644
--- a/arch/mn10300/boot/compressed/vmlinux.lds
+++ b/arch/mn10300/boot/compressed/vmlinux.lds
@@ -4,6 +4,7 @@ SECTIONS
 	input_len = .;
 	LONG(input_data_end - input_data) input_data = .;
 	*(.data)
+	*(.data.*)
 	input_data_end = .;
 	}
 }
diff --git a/arch/powerpc/boot/zImage.coff.lds.S b/arch/powerpc/boot/zImage.coff.lds.S
index 856dc78..504183a 100644
--- a/arch/powerpc/boot/zImage.coff.lds.S
+++ b/arch/powerpc/boot/zImage.coff.lds.S
@@ -7,6 +7,7 @@ SECTIONS
   .text      :
   {
     *(.text)
+    *(.text.*)
     *(.fixup)
   }
   _etext = .;
@@ -41,6 +42,7 @@ SECTIONS
   {
    *(.sbss)
    *(.bss)
+   *(.bss.*)
   }
   _end = . ;
 
diff --git a/arch/powerpc/boot/zImage.lds.S b/arch/powerpc/boot/zImage.lds.S
index 0962d62..2815506 100644
--- a/arch/powerpc/boot/zImage.lds.S
+++ b/arch/powerpc/boot/zImage.lds.S
@@ -7,6 +7,7 @@ SECTIONS
   .text      :
   {
     *(.text)
+    *(.text.*)
     *(.fixup)
   }
   _etext = .;
@@ -45,6 +46,7 @@ SECTIONS
   {
    *(.sbss)
    *(.bss)
+   *(.bss.*)
   }
   . = ALIGN(4096);
   _end = . ;
diff --git a/arch/powerpc/boot/zImage.ps3.lds.S b/arch/powerpc/boot/zImage.ps3.lds.S
index aaa469c..a29ce62 100644
--- a/arch/powerpc/boot/zImage.ps3.lds.S
+++ b/arch/powerpc/boot/zImage.ps3.lds.S
@@ -21,6 +21,7 @@ SECTIONS
   .text      :
   {
     *(.text)
+    *(.text.*)
     *(.fixup)
   }
   _etext = .;
@@ -44,6 +45,7 @@ SECTIONS
   {
    *(.sbss)
    *(.bss)
+   *(.bss.*)
   }
   . = ALIGN(4096);
   _end = . ;
diff --git a/arch/sh/boot/compressed/vmlinux.scr b/arch/sh/boot/compressed/vmlinux.scr
index 862d748..e7d733f 100644
--- a/arch/sh/boot/compressed/vmlinux.scr
+++ b/arch/sh/boot/compressed/vmlinux.scr
@@ -4,6 +4,7 @@ SECTIONS
 	input_len = .;
 	LONG(input_data_end - input_data) input_data = .;
 	*(.data)
+	*(.data.*)
 	output_len = . - 4;
 	input_data_end = .;
 	}
diff --git a/arch/x86/boot/setup.ld b/arch/x86/boot/setup.ld
index 03c0683..a4af992 100644
--- a/arch/x86/boot/setup.ld
+++ b/arch/x86/boot/setup.ld
@@ -20,7 +20,7 @@ SECTIONS
 	.initdata	: { *(.initdata) }
 	__end_init = .;
 
-	.text		: { *(.text) }
+	.text		: { *(.text) *(.text.*) }
 	.text32		: { *(.text32) }
 
 	. = ALIGN(16);
@@ -46,6 +46,7 @@ SECTIONS
 	{
 		__bss_start = .;
 		*(.bss)
+		*(.bss.*)
 		__bss_end = .;
 	}
 	. = ALIGN(16);
diff --git a/arch/xtensa/boot/boot-elf/boot.lds.S b/arch/xtensa/boot/boot-elf/boot.lds.S
index 4e53b74..368d766 100644
--- a/arch/xtensa/boot/boot-elf/boot.lds.S
+++ b/arch/xtensa/boot/boot-elf/boot.lds.S
@@ -10,19 +10,21 @@ SECTIONS
 	{
 		__reloc_start = . ;
 		_text_start = . ;
-		*(.literal .text.literal .text)
+		*(.literal .text.literal .text .text.*)
 		_text_end = . ;
 	}
 
 	.rodata ALIGN(0x04):
 	{
 		*(.rodata)
+		*(.rodata.*)
 		*(.rodata1)
 	}
 
 	.data ALIGN(0x04):
 	{
 		*(.data)
+		*(.data.*)
 		*(.data1)
 		*(.sdata)
 		*(.sdata2)
@@ -58,6 +60,7 @@ SECTIONS
 		*(.scommon)
 		*(.dynbss)
 		*(.bss)
+		*(.bss.*)
 		__bss_end = .;
 	}
 	_end = .;
diff --git a/arch/xtensa/boot/boot-redboot/boot.ld b/arch/xtensa/boot/boot-redboot/boot.ld
index 774db20..8747b68 100644
--- a/arch/xtensa/boot/boot-redboot/boot.ld
+++ b/arch/xtensa/boot/boot-redboot/boot.ld
@@ -8,19 +8,21 @@ SECTIONS
 	{
 		__reloc_start = . ;
 		_text_start = . ;
-		*(.literal .text.literal .text)
+		*(.literal .text.literal .text .text.*)
 		_text_end = . ;
 	}
 
 	.rodata ALIGN(0x04):
 	{
 		*(.rodata)
+		*(.rodata.*)
 		*(.rodata1)
 	}
 
 	.data ALIGN(0x04):
 	{
 		*(.data)
+		*(.data.*)
 		*(.data1)
 		*(.sdata)
 		*(.sdata2)
@@ -56,6 +58,7 @@ SECTIONS
 		*(.scommon)
 		*(.dynbss)
 		*(.bss)
+		*(.bss.*)
 		__bss_end = .;
 	}
 	_end = .;
-- 
1.6.2.4

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From: Denys Vlasenko <vda.linux@googlemail.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kbuild.devel,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 1/4] modpost: support objects with more than 64k sections
Date: Thu, 29 Jul 2010 01:47:53 +0200
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Cc: lkml <linux-kernel@vger.kernel.org>,
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	Tim Bird <tim.bird@am.sony.com>,
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	Arnd Bergmann <arnd@arndb.de>,
	Anders Kaseorg <andersk@mit.edu>,
	Andi Kleen <andi@firstfloor.org>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Denys Vlasenko <vda.linux@googlemail.com>,
	Rusty Russell <rusty@rustcorp.com.au>
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This patch makes modpost able to process object files with more than
64k sections. Needed for huge kernel builds (allyesconfig, for example)
with -ffunction-sections.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <andi@firstfloor.org>
---
 scripts/mod/file2alias.c |    6 +-
 scripts/mod/modpost.c    |  102 ++++++++++++++++++++++++++++++++++------------
 scripts/mod/modpost.h    |   43 +++++++++++++++++++
 3 files changed, 122 insertions(+), 29 deletions(-)

diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 5758aab..88f3f07 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -884,16 +884,16 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
 	char *zeros = NULL;
 
 	/* We're looking for a section relative symbol */
-	if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum)
+	if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
 		return;
 
 	/* Handle all-NULL symbols allocated into .bss */
-	if (info->sechdrs[sym->st_shndx].sh_type & SHT_NOBITS) {
+	if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
 		zeros = calloc(1, sym->st_size);
 		symval = zeros;
 	} else {
 		symval = (void *)info->hdr
-			+ info->sechdrs[sym->st_shndx].sh_offset
+			+ info->sechdrs[get_secindex(info, sym)].sh_offset
 			+ sym->st_value;
 	}
 
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index f6127b9..c827309 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -253,7 +253,7 @@ static enum export export_no(const char *s)
 	return export_unknown;
 }
 
-static enum export export_from_sec(struct elf_info *elf, Elf_Section sec)
+static enum export export_from_sec(struct elf_info *elf, unsigned int sec)
 {
 	if (sec == elf->export_sec)
 		return export_plain;
@@ -373,6 +373,8 @@ static int parse_elf(struct elf_info *info, const char *filename)
 	Elf_Ehdr *hdr;
 	Elf_Shdr *sechdrs;
 	Elf_Sym  *sym;
+	const char *secstrings;
+	unsigned int symtab_idx = ~0U, symtab_shndx_idx = ~0U;
 
 	hdr = grab_file(filename, &info->size);
 	if (!hdr) {
@@ -417,8 +419,27 @@ static int parse_elf(struct elf_info *info, const char *filename)
 		return 0;
 	}
 
+	if (hdr->e_shnum == 0) {
+		/*
+		 * There are more than 64k sections,
+		 * read count from .sh_size.
+		 * note: it doesn't need shndx2secindex()
+		 */
+		info->num_sections = TO_NATIVE(sechdrs[0].sh_size);
+	}
+	else {
+		info->num_sections = hdr->e_shnum;
+	}
+	if (hdr->e_shstrndx == SHN_XINDEX) {
+		info->secindex_strings =
+		    shndx2secindex(TO_NATIVE(sechdrs[0].sh_link));
+	}
+	else {
+		info->secindex_strings = hdr->e_shstrndx;
+	}
+
 	/* Fix endianness in section headers */
-	for (i = 0; i < hdr->e_shnum; i++) {
+	for (i = 0; i < info->num_sections; i++) {
 		sechdrs[i].sh_name      = TO_NATIVE(sechdrs[i].sh_name);
 		sechdrs[i].sh_type      = TO_NATIVE(sechdrs[i].sh_type);
 		sechdrs[i].sh_flags     = TO_NATIVE(sechdrs[i].sh_flags);
@@ -431,9 +452,8 @@ static int parse_elf(struct elf_info *info, const char *filename)
 		sechdrs[i].sh_entsize   = TO_NATIVE(sechdrs[i].sh_entsize);
 	}
 	/* Find symbol table. */
-	for (i = 1; i < hdr->e_shnum; i++) {
-		const char *secstrings
-			= (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
+	secstrings = (void *)hdr + sechdrs[info->secindex_strings].sh_offset;
+	for (i = 1; i < info->num_sections; i++) {
 		const char *secname;
 		int nobits = sechdrs[i].sh_type == SHT_NOBITS;
 
@@ -461,14 +481,26 @@ static int parse_elf(struct elf_info *info, const char *filename)
 		else if (strcmp(secname, "__ksymtab_gpl_future") == 0)
 			info->export_gpl_future_sec = i;
 
-		if (sechdrs[i].sh_type != SHT_SYMTAB)
-			continue;
+		if (sechdrs[i].sh_type == SHT_SYMTAB) {
+			unsigned int sh_link_idx;
+			symtab_idx = i;
+			info->symtab_start = (void *)hdr +
+			    sechdrs[i].sh_offset;
+			info->symtab_stop  = (void *)hdr +
+			    sechdrs[i].sh_offset + sechdrs[i].sh_size;
+			sh_link_idx = shndx2secindex(sechdrs[i].sh_link);
+			info->strtab       = (void *)hdr +
+			    sechdrs[sh_link_idx].sh_offset;
+		}
 
-		info->symtab_start = (void *)hdr + sechdrs[i].sh_offset;
-		info->symtab_stop  = (void *)hdr + sechdrs[i].sh_offset
-			                         + sechdrs[i].sh_size;
-		info->strtab       = (void *)hdr +
-			             sechdrs[sechdrs[i].sh_link].sh_offset;
+		/* 32bit section no. table? ("more than 64k sections") */
+		if (sechdrs[i].sh_type == SHT_SYMTAB_SHNDX) {
+			symtab_shndx_idx = i;
+			info->symtab_shndx_start = (void *)hdr +
+			    sechdrs[i].sh_offset;
+			info->symtab_shndx_stop  = (void *)hdr +
+			    sechdrs[i].sh_offset + sechdrs[i].sh_size;
+		}
 	}
 	if (!info->symtab_start)
 		fatal("%s has no symtab?\n", filename);
@@ -480,6 +512,21 @@ static int parse_elf(struct elf_info *info, const char *filename)
 		sym->st_value = TO_NATIVE(sym->st_value);
 		sym->st_size  = TO_NATIVE(sym->st_size);
 	}
+
+	if (symtab_shndx_idx != ~0U) {
+		Elf32_Word *p;
+		if (symtab_idx !=
+		    shndx2secindex(sechdrs[symtab_shndx_idx].sh_link))
+			fatal("%s: SYMTAB_SHNDX has bad sh_link: %u!=%u\n",
+			      filename,
+			      shndx2secindex(sechdrs[symtab_shndx_idx].sh_link),
+			      symtab_idx);
+		/* Fix endianness */
+		for (p = info->symtab_shndx_start; p < info->symtab_shndx_stop;
+		     p++)
+			*p = TO_NATIVE(*p);
+	}
+
 	return 1;
 }
 
@@ -519,7 +566,7 @@ static void handle_modversions(struct module *mod, struct elf_info *info,
 			       Elf_Sym *sym, const char *symname)
 {
 	unsigned int crc;
-	enum export export = export_from_sec(info, sym->st_shndx);
+	enum export export = export_from_sec(info, get_secindex(info, sym));
 
 	switch (sym->st_shndx) {
 	case SHN_COMMON:
@@ -661,19 +708,19 @@ static const char *sym_name(struct elf_info *elf, Elf_Sym *sym)
 		return "(unknown)";
 }
 
-static const char *sec_name(struct elf_info *elf, int shndx)
+static const char *sec_name(struct elf_info *elf, int secindex)
 {
 	Elf_Shdr *sechdrs = elf->sechdrs;
 	return (void *)elf->hdr +
-	        elf->sechdrs[elf->hdr->e_shstrndx].sh_offset +
-	        sechdrs[shndx].sh_name;
+		elf->sechdrs[elf->secindex_strings].sh_offset +
+		sechdrs[secindex].sh_name;
 }
 
 static const char *sech_name(struct elf_info *elf, Elf_Shdr *sechdr)
 {
 	return (void *)elf->hdr +
-	        elf->sechdrs[elf->hdr->e_shstrndx].sh_offset +
-	        sechdr->sh_name;
+		elf->sechdrs[elf->secindex_strings].sh_offset +
+		sechdr->sh_name;
 }
 
 /* if sym is empty or point to a string
@@ -1052,11 +1099,14 @@ static Elf_Sym *find_elf_symbol(struct elf_info *elf, Elf64_Sword addr,
 	Elf_Sym *near = NULL;
 	Elf64_Sword distance = 20;
 	Elf64_Sword d;
+	unsigned int relsym_secindex;
 
 	if (relsym->st_name != 0)
 		return relsym;
+
+	relsym_secindex = get_secindex(elf, relsym);
 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
-		if (sym->st_shndx != relsym->st_shndx)
+		if (get_secindex(elf, sym) != relsym_secindex)
 			continue;
 		if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
 			continue;
@@ -1118,9 +1168,9 @@ static Elf_Sym *find_elf_symbol2(struct elf_info *elf, Elf_Addr addr,
 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
 		const char *symsec;
 
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
-		symsec = sec_name(elf, sym->st_shndx);
+		symsec = sec_name(elf, get_secindex(elf, sym));
 		if (strcmp(symsec, sec) != 0)
 			continue;
 		if (!is_valid_name(elf, sym))
@@ -1316,7 +1366,7 @@ static void check_section_mismatch(const char *modname, struct elf_info *elf,
 	const char *tosec;
 	const struct sectioncheck *mismatch;
 
-	tosec = sec_name(elf, sym->st_shndx);
+	tosec = sec_name(elf, get_secindex(elf, sym));
 	mismatch = section_mismatch(fromsec, tosec);
 	if (mismatch) {
 		Elf_Sym *to;
@@ -1344,7 +1394,7 @@ static unsigned int *reloc_location(struct elf_info *elf,
 				    Elf_Shdr *sechdr, Elf_Rela *r)
 {
 	Elf_Shdr *sechdrs = elf->sechdrs;
-	int section = sechdr->sh_info;
+	int section = shndx2secindex(sechdr->sh_info);
 
 	return (void *)elf->hdr + sechdrs[section].sh_offset +
 		r->r_offset - sechdrs[section].sh_addr;
@@ -1452,7 +1502,7 @@ static void section_rela(const char *modname, struct elf_info *elf,
 		r.r_addend = TO_NATIVE(rela->r_addend);
 		sym = elf->symtab_start + r_sym;
 		/* Skip special sections */
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
 		check_section_mismatch(modname, elf, &r, sym, fromsec);
 	}
@@ -1510,7 +1560,7 @@ static void section_rel(const char *modname, struct elf_info *elf,
 		}
 		sym = elf->symtab_start + r_sym;
 		/* Skip special sections */
-		if (sym->st_shndx >= SHN_LORESERVE)
+		if (is_shndx_special(sym->st_shndx))
 			continue;
 		check_section_mismatch(modname, elf, &r, sym, fromsec);
 	}
@@ -1535,7 +1585,7 @@ static void check_sec_ref(struct module *mod, const char *modname,
 	Elf_Shdr *sechdrs = elf->sechdrs;
 
 	/* Walk through all sections */
-	for (i = 0; i < elf->hdr->e_shnum; i++) {
+	for (i = 0; i < elf->num_sections; i++) {
 		check_section(modname, elf, &elf->sechdrs[i]);
 		/* We want to process only relocation sections and not .init */
 		if (sechdrs[i].sh_type == SHT_RELA)
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index be987a4..0388cfc 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -129,8 +129,51 @@ struct elf_info {
 	const char   *strtab;
 	char	     *modinfo;
 	unsigned int modinfo_len;
+
+	/* support for 32bit section numbers */
+
+	unsigned int num_sections; /* max_secindex + 1 */
+	unsigned int secindex_strings;
+	/* if Nth symbol table entry has .st_shndx = SHN_XINDEX,
+	 * take shndx from symtab_shndx_start[N] instead */
+	Elf32_Word   *symtab_shndx_start;
+	Elf32_Word   *symtab_shndx_stop;
 };
 
+static inline int is_shndx_special(unsigned int i)
+{
+	return i != SHN_XINDEX && i >= SHN_LORESERVE && i <= SHN_HIRESERVE;
+}
+
+/* shndx is in [0..SHN_LORESERVE) U (SHN_HIRESERVE, 0xfffffff], thus:
+ * shndx == 0               <=> sechdrs[0]
+ * ......
+ * shndx == SHN_LORESERVE-1 <=> sechdrs[SHN_LORESERVE-1]
+ * shndx == SHN_HIRESERVE+1 <=> sechdrs[SHN_LORESERVE]
+ * shndx == SHN_HIRESERVE+2 <=> sechdrs[SHN_LORESERVE+1]
+ * ......
+ * fyi: sym->st_shndx is uint16, SHN_LORESERVE = ff00, SHN_HIRESERVE = ffff,
+ * so basically we map  0000..feff -> 0000..feff
+ *                      ff00..ffff -> (you are a bad boy, dont do it)
+ *                     10000..xxxx -> ff00..(xxxx-0x100)
+ */
+static inline unsigned int shndx2secindex(unsigned int i)
+{
+	if (i <= SHN_HIRESERVE)
+		return i;
+	return i - (SHN_HIRESERVE + 1 - SHN_LORESERVE);
+}
+
+/* Accessor for sym->st_shndx, hides ugliness of "64k sections" */
+static inline unsigned int get_secindex(const struct elf_info *info,
+					const Elf_Sym *sym)
+{
+	if (sym->st_shndx != SHN_XINDEX)
+		return sym->st_shndx;
+	return shndx2secindex(info->symtab_shndx_start[sym -
+						       info->symtab_start]);
+}
+
 /* file2alias.c */
 extern unsigned int cross_build;
 void handle_moddevtable(struct module *mod, struct elf_info *info,
-- 
1.6.2.4


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gcc -ffunction-sections -fdata-sections places each function foo
into separate section .text.foo, and every data object bar into
separate section .data.bar, .rodata.bar or .bss.bar.

This fix prevents kernel modules from having unnecessarily many
sections and thus prevents module size growth when we pass
-ffunction-sections -fdata-sections to gcc.

Module linker script needs to avoid collecting special kernel sections,
therefore it uses more restrictive patterns like *(.text.[A-Za-z0-9_$^]*)
instead of simplistic *(.text.*): special kernel sections like
.text..page_aligned contain double dots and won't be accidentally
matched by them.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
---
 scripts/module-common.lds |   23 +++++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)

diff --git a/scripts/module-common.lds b/scripts/module-common.lds
index 47a1f9a..4a197e8 100644
--- a/scripts/module-common.lds
+++ b/scripts/module-common.lds
@@ -3,6 +3,29 @@
  * Archs are free to supply their own linker scripts.  ld will
  * combine them automatically.
  */
+
+/* .data.foo are generated by gcc itself with -fdata-sections,
+ * whereas double-dot sections (like .data..percpu) are generated
+ * by kernel's magic macros.
+ *
+ * Since this script does not specify what to do with double-dot sections,
+ * ld -r will coalesce all .data..foo input sections into one .data..foo
+ * output section, all .data..bar input sections into one .data..bar
+ * output section and so on. This is exactly what we want.
+ *
+ * Same goes for .text, .bss and .rodata. In case of .rodata, various
+ * .rodata.foo sections are generated by gcc even without -fdata-sections
+ */
+
 SECTIONS {
+
+	/* Coalesce sections produced by gcc -ffunction-sections */
+	.text   0 : AT(0) { *(.text .text.[A-Za-z0-9_$^]*) }
+
+	/* Coalesce sections produced by gcc -fdata-sections */
+	.rodata 0 : AT(0) { *(.rodata .rodata.[A-Za-z0-9_$^]*) }
+	.data   0 : AT(0) { *(.data .data.[A-Za-z0-9_$^]*) }
+	.bss    0 : AT(0) { *(.bss .bss.[A-Za-z0-9_$^]*) }
+
 	/DISCARD/ : { *(.discard) }
 }
-- 
1.6.2.4

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Subject: Re: [PATCH 2/4] module linker script: coalesce function and data sections
Date: Thu, 29 Jul 2010 01:25:05 +0100
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To: Denys Vlasenko <vda.linux@googlemail.com>
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Denys Vlasenko <vda.linux@googlemail.com> wrote:

> +	.data   0 : AT(0) { *(.data .data.[A-Za-z0-9_$^]*) }
> +	.bss    0 : AT(0) { *(.bss .bss.[A-Za-z0-9_$^]*) }

What about .sdata and .sbss sections produced by arches that support small
data sections?

David

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On Thursday 29 July 2010 02:25, David Howells wrote:
> Denys Vlasenko <vda.linux@googlemail.com> wrote:
> 
> > +	.data   0 : AT(0) { *(.data .data.[A-Za-z0-9_$^]*) }
> > +	.bss    0 : AT(0) { *(.bss .bss.[A-Za-z0-9_$^]*) }
> 
> What about .sdata and .sbss sections produced by arches that support small
> data sections?

linker groups all similarly-named input sections into one output section
with the same name, if the name does not match any rule in the linker
script.

Basically, it should work as if there is a rule:

.sbss    0 : AT(0) { *(.sbss) }

-- 
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Subject: Re: [PATCH 2/4] module linker script: coalesce function and data sections
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Denys Vlasenko <vda.linux@googlemail.com> wrote:

> linker groups all similarly-named input sections into one output section
> with the same name, if the name does not match any rule in the linker
> script.
> 
> Basically, it should work as if there is a rule:
> 
> .sbss    0 : AT(0) { *(.sbss) }

Okay, thanks.

David
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On Tue, 15 Jun 2010 07:35:53 -0400
Kyle McMartin <kyle@mcmartin.ca> wrote:


> I figured... I'll take a look at it over the weekend. (Also, I'll see
> if I can dig up the radeonfb hacks.)


Any luck ? :)

Is it still possible to get this in 2.6.35 ?

Cheers,
  Guy
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From - Thu Nov 08 21:06:11 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [Security] [PATCH] bug in led_proc_write()
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* Andrew Morton <akpm@linux-foundation.org>:
> On Sat, 10 Nov 2007 23:50:29 +0100 Ilja <ilja@netric.org> wrote:
> > When reading some of the parisc driver code I stumbled on a bug in
> > led_proc_write() in drivers/parisc/led.c
> > the code looks like:
> > 
> > 182 static int led_proc_write(struct file *file, const char *buf, 
> > 183         unsigned long count, void *data)
> > 184 {
> > 185         char *cur, lbuf[count + 1];
> > 186         int d;
> > 187
> > 188         if (!capable(CAP_SYS_ADMIN))
> > 189                 return -EACCES;
> > ....
> > 235 }
> > 
> > the problem being that the stack is limited and count is not (except for the
> > MAX_INT check done in sys_write() I guess). this could lead to stack
> > corruption (when for example calling capable()). 
> 
> yes, and the bug's still there.  It allows a writer to /proc/pdc/led(?)
> to cause the kernel to consume an unbounded amount of stack. 

Ilja, Andrew,

Thanks for the bug report.
Below is a patch to fix this issue.

Kyle, please apply to the parisc git tree.

Helge

-----------
[PARISC] led.c - fix potential stack overflow in led_proc_write()

avoid potential stack overflow by correctly checking count parameter

Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index 188bc84..d02be78 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -176,16 +176,18 @@ static ssize_t led_proc_write(struct file *file, const char *buf,
 	size_t count, loff_t *pos)
 {
 	void *data = PDE(file->f_path.dentry->d_inode)->data;
-	char *cur, lbuf[count + 1];
+	char *cur, lbuf[32];
 	int d;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EACCES;
 
-	memset(lbuf, 0, count + 1);
+	if (count >= sizeof(lbuf))
+		count = sizeof(lbuf)-1;
 
 	if (copy_from_user(lbuf, buf, count))
 		return -EFAULT;
+	lbuf[count] = 0;
 
 	cur = lbuf;
 


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From - Thu Nov 08 21:06:11 2018
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Subject: Re: [Security] [PATCH] bug in led_proc_write()
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On Mon, Aug 02, 2010 at 10:46:41PM +0200, Helge Deller wrote:
> Kyle, please apply to the parisc git tree.
> 

Please send this straight to Linus with my
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

I don't want to accidentally mis-place it again this summer.

--Kyle

> Helge
> 
> -----------
> [PARISC] led.c - fix potential stack overflow in led_proc_write()
> 
> avoid potential stack overflow by correctly checking count parameter
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> 
> diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
> index 188bc84..d02be78 100644
> --- a/drivers/parisc/led.c
> +++ b/drivers/parisc/led.c
> @@ -176,16 +176,18 @@ static ssize_t led_proc_write(struct file *file, const char *buf,
>  	size_t count, loff_t *pos)
>  {
>  	void *data = PDE(file->f_path.dentry->d_inode)->data;
> -	char *cur, lbuf[count + 1];
> +	char *cur, lbuf[32];
>  	int d;
>  
>  	if (!capable(CAP_SYS_ADMIN))
>  		return -EACCES;
>  
> -	memset(lbuf, 0, count + 1);
> +	if (count >= sizeof(lbuf))
> +		count = sizeof(lbuf)-1;
>  
>  	if (copy_from_user(lbuf, buf, count))
>  		return -EFAULT;
> +	lbuf[count] = 0;
>  
>  	cur = lbuf;
>  
> 
> 
> 
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Newsgroups: gmane.linux.kernel,gmane.linux.kbuild.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: Re: [PATCH 2/4] module linker script: coalesce function and data
 sections
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	lkml <linux-kernel@vger.kernel.org>,
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To: Denys Vlasenko <vda.linux@googlemail.com>
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On 29.7.2010 01:47, Denys Vlasenko wrote:
>  SECTIONS {
> +
> +	/* Coalesce sections produced by gcc -ffunction-sections */
> +	.text   0 : AT(0) { *(.text .text.[A-Za-z0-9_$^]*) }
> +
> +	/* Coalesce sections produced by gcc -fdata-sections */
> +	.rodata 0 : AT(0) { *(.rodata .rodata.[A-Za-z0-9_$^]*) }
> +	.data   0 : AT(0) { *(.data .data.[A-Za-z0-9_$^]*) }
> +	.bss    0 : AT(0) { *(.bss .bss.[A-Za-z0-9_$^]*) }
> +
>  	/DISCARD/ : { *(.discard) }
>  }

I'm now getting

ld:/home/mmarek/linux-2.6/scripts/module-common.lds:23: ignoring invalid
character `^' in script
ld:/home/mmarek/linux-2.6/scripts/module-common.lds:26: ignoring invalid
character `^' in script
ld:/home/mmarek/linux-2.6/scripts/module-common.lds:27: ignoring invalid
character `^' in script
ld:/home/mmarek/linux-2.6/scripts/module-common.lds:28: ignoring invalid
character `^' in script

when linking modules and a similar warning when linking vmlinux (caused
by the next patch in series). I tried writing the carets as \^, but that
doesn't help at all...

$ ld --version
GNU ld (GNU Binutils; openSUSE Factory) 2.20.0.20100122-7

Michal

From - Thu Nov 08 21:06:11 2018
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	Frans Pop <elendil@planet.nl>,
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To: kernel-janitors@vger.kernel.org
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IRQ and resource[] may not have correct values until
after PCI hotplug setup occurs at pci_enable_device() time.

The semantic match that finds this problem is as follows:

// <smpl>
@@
identifier x;
identifier request ~= "pci_request.*|pci_resource.*";
@@

(
* x->irq
|
* x->resource
|
* request(x, ...)
)
 ...
*pci_enable_device(x)
// </smpl>

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
---
 drivers/parisc/superio.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index f7806d8..c8a36a2 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -169,8 +169,6 @@ superio_init(struct pci_dev *pcidev)
 	/* ...then properly fixup the USB to point at suckyio PIC */
 	sio->usb_pdev->irq = superio_fixup_irq(sio->usb_pdev);
 
-	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
-	       pci_name(pdev), pdev->irq);
 
 	pci_read_config_dword (pdev, SIO_SP1BAR, &sio->sp1_base);
 	sio->sp1_base &= ~1;
@@ -204,6 +202,9 @@ superio_init(struct pci_dev *pcidev)
 	ret = pci_enable_device(pdev);
 	BUG_ON(ret < 0);	/* not too much we can do about this... */
 
+	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
+	       pci_name(pdev), pdev->irq);
+
 	/*
 	 * Next project is programming the onboard interrupt controllers.
 	 * PDC hasn't done this for us, since it's using polled I/O.
-- 
1.7.0.4


From - Thu Nov 08 21:06:11 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.janitors,gmane.linux.kernel
Subject: Re: [PATCH 07/11] parisc: superio: do not use PCI resources before
 pci_enable_device()
Date: Tue, 03 Aug 2010 11:11:20 -0500
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Cc: kernel-janitors@vger.kernel.org, Kyle McMartin <kyle@mcmartin.ca>,
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To: Kulikov Vasiliy <segooon@gmail.com>
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On Tue, 2010-08-03 at 19:44 +0400, Kulikov Vasiliy wrote:
>  drivers/parisc/superio.c |    5 +++--
>  1 files changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
> index f7806d8..c8a36a2 100644
> --- a/drivers/parisc/superio.c
> +++ b/drivers/parisc/superio.c
> @@ -169,8 +169,6 @@ superio_init(struct pci_dev *pcidev)
>  	/* ...then properly fixup the USB to point at suckyio PIC */
>  	sio->usb_pdev->irq = superio_fixup_irq(sio->usb_pdev);
>  
> -	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
> -	       pci_name(pdev), pdev->irq);
>  
>  	pci_read_config_dword (pdev, SIO_SP1BAR, &sio->sp1_base);
>  	sio->sp1_base &= ~1;
> @@ -204,6 +202,9 @@ superio_init(struct pci_dev *pcidev)
>  	ret = pci_enable_device(pdev);
>  	BUG_ON(ret < 0);	/* not too much we can do about this... */
>  
> +	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
> +	       pci_name(pdev), pdev->irq);
> +
>  	/*
>  	 * Next project is programming the onboard interrupt controllers.
>  	 * PDC hasn't done this for us, since it's using polled I/O.

This really makes no sense; we want the information printed before we
start all the discovery prints, not after.  I assume lots of
initialisers want this too, so it looks particularly silly not to have
pci_name() returning the correct value until enable time.

If this is just the name initially assigned may change, this definitely
isn't true for parisc, and even for other things, it would be better to
print something than nothing.

James


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From - Thu Nov 08 21:06:11 2018
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From: Vasiliy Kulikov <segooon@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.janitors,gmane.linux.kernel
Subject: Re: [PATCH 07/11] parisc: superio: do not use PCI resources before
 pci_enable_device()
Date: Tue, 3 Aug 2010 20:35:08 +0400
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/3022>

On Tue, Aug 03, 2010 at 11:11 -0500, James Bottomley wrote:
> On Tue, 2010-08-03 at 19:44 +0400, Kulikov Vasiliy wrote:
> >  drivers/parisc/superio.c |    5 +++--
> >  1 files changed, 3 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
> > index f7806d8..c8a36a2 100644
> > --- a/drivers/parisc/superio.c
> > +++ b/drivers/parisc/superio.c
> > @@ -169,8 +169,6 @@ superio_init(struct pci_dev *pcidev)
> >  	/* ...then properly fixup the USB to point at suckyio PIC */
> >  	sio->usb_pdev->irq = superio_fixup_irq(sio->usb_pdev);
> >  
> > -	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
> > -	       pci_name(pdev), pdev->irq);
> >  
> >  	pci_read_config_dword (pdev, SIO_SP1BAR, &sio->sp1_base);
> >  	sio->sp1_base &= ~1;
> > @@ -204,6 +202,9 @@ superio_init(struct pci_dev *pcidev)
> >  	ret = pci_enable_device(pdev);
> >  	BUG_ON(ret < 0);	/* not too much we can do about this... */
> >  
> > +	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
> > +	       pci_name(pdev), pdev->irq);
> > +
> >  	/*
> >  	 * Next project is programming the onboard interrupt controllers.
> >  	 * PDC hasn't done this for us, since it's using polled I/O.
> 
> This really makes no sense; we want the information printed before we
> start all the discovery prints, not after.

Right, I missed it.

> I assume lots of
> initialisers want this too, so it looks particularly silly not to have
> pci_name() returning the correct value until enable time.
> 
> If this is just the name initially assigned may change, this definitely
> isn't true for parisc, and even for other things, it would be better to
> print something than nothing.

Not name, but pdev-irq. I was not searching for pci_name() as you can
see in coccinelle script :)

As it is only printing wrong value, the worst case is fooling user that
reads logs.


Is it OK to move pci_enable_device() just before this printk()?

> 
> James
> 
> 
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From - Thu Nov 08 21:06:11 2018
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Subject: Re: [PATCH 07/11] parisc: superio: do not use PCI resources before
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On Tue, 03 Aug 2010 11:11:20 -0500
James Bottomley <James.Bottomley@HansenPartnership.com> wrote:

> On Tue, 2010-08-03 at 19:44 +0400, Kulikov Vasiliy wrote:
> >  drivers/parisc/superio.c |    5 +++--
> >  1 files changed, 3 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
> > index f7806d8..c8a36a2 100644
> > --- a/drivers/parisc/superio.c
> > +++ b/drivers/parisc/superio.c
> > @@ -169,8 +169,6 @@ superio_init(struct pci_dev *pcidev)
> >  	/* ...then properly fixup the USB to point at suckyio PIC */
> >  	sio->usb_pdev->irq = superio_fixup_irq(sio->usb_pdev);
> >  
> > -	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
> > -	       pci_name(pdev), pdev->irq);
> >  
> >  	pci_read_config_dword (pdev, SIO_SP1BAR, &sio->sp1_base);
> >  	sio->sp1_base &= ~1;
> > @@ -204,6 +202,9 @@ superio_init(struct pci_dev *pcidev)
> >  	ret = pci_enable_device(pdev);
> >  	BUG_ON(ret < 0);	/* not too much we can do about this... */
> >  
> > +	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
> > +	       pci_name(pdev), pdev->irq);
> > +
> >  	/*
> >  	 * Next project is programming the onboard interrupt controllers.
> >  	 * PDC hasn't done this for us, since it's using polled I/O.
> 
> This really makes no sense; we want the information printed before we
> start all the discovery prints, not after.  I assume lots of
> initialisers want this too, so it looks particularly silly not to have
> pci_name() returning the correct value until enable time.
> 
> If this is just the name initially assigned may change, this definitely
> isn't true for parisc, and even for other things, it would be better to
> print something than nothing.

Right.  Some of these "enable before use" patches are ok, for example
in some cases the IRQ may not be fully set up or resources may not be
enabled, so re-ordering things makes sense.

But just printing these values at init time should be harmless.  So
perhaps a smarter static check script is in order.

-- 
Jesse Barnes, Intel Open Source Technology Center

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.janitors,gmane.linux.kernel
Subject: Re: [PATCH 07/11] parisc: superio: do not use PCI resources before
 pci_enable_device()
Date: Tue, 03 Aug 2010 11:38:48 -0500
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On Tue, 2010-08-03 at 20:35 +0400, Vasiliy Kulikov wrote:
> On Tue, Aug 03, 2010 at 11:11 -0500, James Bottomley wrote:
> > On Tue, 2010-08-03 at 19:44 +0400, Kulikov Vasiliy wrote:
> > >  drivers/parisc/superio.c |    5 +++--
> > >  1 files changed, 3 insertions(+), 2 deletions(-)
> > > 
> > > diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
> > > index f7806d8..c8a36a2 100644
> > > --- a/drivers/parisc/superio.c
> > > +++ b/drivers/parisc/superio.c
> > > @@ -169,8 +169,6 @@ superio_init(struct pci_dev *pcidev)
> > >  	/* ...then properly fixup the USB to point at suckyio PIC */
> > >  	sio->usb_pdev->irq = superio_fixup_irq(sio->usb_pdev);
> > >  
> > > -	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
> > > -	       pci_name(pdev), pdev->irq);
> > >  
> > >  	pci_read_config_dword (pdev, SIO_SP1BAR, &sio->sp1_base);
> > >  	sio->sp1_base &= ~1;
> > > @@ -204,6 +202,9 @@ superio_init(struct pci_dev *pcidev)
> > >  	ret = pci_enable_device(pdev);
> > >  	BUG_ON(ret < 0);	/* not too much we can do about this... */
> > >  
> > > +	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
> > > +	       pci_name(pdev), pdev->irq);
> > > +
> > >  	/*
> > >  	 * Next project is programming the onboard interrupt controllers.
> > >  	 * PDC hasn't done this for us, since it's using polled I/O.
> > 
> > This really makes no sense; we want the information printed before we
> > start all the discovery prints, not after.
> 
> Right, I missed it.
> 
> > I assume lots of
> > initialisers want this too, so it looks particularly silly not to have
> > pci_name() returning the correct value until enable time.
> > 
> > If this is just the name initially assigned may change, this definitely
> > isn't true for parisc, and even for other things, it would be better to
> > print something than nothing.
> 
> Not name, but pdev-irq. I was not searching for pci_name() as you can
> see in coccinelle script :)
> 
> As it is only printing wrong value, the worst case is fooling user that
> reads logs.
> 
> 
> Is it OK to move pci_enable_device() just before this printk()?

Not really ... we need the device set up before it gets enabled.

If it's only the irq, then just leave it ... the name is more important
and an uninitialised IRQ returns -1 which is a reasonable signal of not
being set up yet ... but I think you'll find it will be pre setup on all
platforms.

However, 

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From - Thu Nov 08 21:06:12 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Fwd: [PATCH] parisc: pass through '\t' to early (iodc) console
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On Sun, 18 Jul 2010, Kyle McMartin wrote:

> I'll resend it in the morning.

Unfortunately, the change doesn't appear in the release.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:12 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: pass through '\t' to early (iodc) console
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The firmware handles '\t' internally, so stop trying to emulate it
(which, incidentally, had a bug in it.)

Fixes a really weird hang at bootup in rcu_bootup_announce, which,
as far as I can tell, is the first printk in the core kernel to use
a tab as the first character.

Cc: stable@kernel.org
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---

Oops, looks like this slipped through the cracks in my summer
vacation. Resending for 2.6.36 and stable kernels...

 arch/parisc/kernel/firmware.c |   12 ++----------
 1 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 4c247e0..df971fa 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1123,7 +1123,6 @@ static char __attribute__((aligned(64))) iodc_dbuf[4096];
  */
 int pdc_iodc_print(const unsigned char *str, unsigned count)
 {
-	static int posx;        /* for simple TAB-Simulation... */
 	unsigned int i;
 	unsigned long flags;
 
@@ -1133,19 +1132,12 @@ int pdc_iodc_print(const unsigned char *str, unsigned count)
 			iodc_dbuf[i+0] = '\r';
 			iodc_dbuf[i+1] = '\n';
 			i += 2;
-			posx = 0;
 			goto print;
-		case '\t':
-			while (posx & 7) {
-				iodc_dbuf[i] = ' ';
-				i++, posx++;
-			}
-			break;
 		case '\b':	/* BS */
-			posx -= 2;
+			i--; /* overwrite last */
 		default:
 			iodc_dbuf[i] = str[i];
-			i++, posx++;
+			i++;
 			break;
 		}
 	}
-- 
1.7.0.1
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/3027>

On Tuesday 03 August 2010 15:47, Michal Marek wrote:
> On 29.7.2010 01:47, Denys Vlasenko wrote:
> >  SECTIONS {
> > +
> > +	/* Coalesce sections produced by gcc -ffunction-sections */
> > +	.text   0 : AT(0) { *(.text .text.[A-Za-z0-9_$^]*) }
> > +
> > +	/* Coalesce sections produced by gcc -fdata-sections */
> > +	.rodata 0 : AT(0) { *(.rodata .rodata.[A-Za-z0-9_$^]*) }
> > +	.data   0 : AT(0) { *(.data .data.[A-Za-z0-9_$^]*) }
> > +	.bss    0 : AT(0) { *(.bss .bss.[A-Za-z0-9_$^]*) }
> > +
> >  	/DISCARD/ : { *(.discard) }
> >  }
> 
> I'm now getting
> 
> ld:/home/mmarek/linux-2.6/scripts/module-common.lds:23: ignoring invalid
> character `^' in script
> ld:/home/mmarek/linux-2.6/scripts/module-common.lds:26: ignoring invalid
> character `^' in script
> ld:/home/mmarek/linux-2.6/scripts/module-common.lds:27: ignoring invalid
> character `^' in script
> ld:/home/mmarek/linux-2.6/scripts/module-common.lds:28: ignoring invalid
> character `^' in script
> 
> when linking modules and a similar warning when linking vmlinux (caused
> by the next patch in series). I tried writing the carets as \^, but that
> doesn't help at all...

Yep, I can confirm it. The binutils fix to allow caret might be trivial,
and will allow us to use much better pattern: [^.]*

I created a Fedora bug for it:

https://bugzilla.redhat.com/show_bug.cgi?id=621742

So far, please remove these three patches from kbuild tree.

(I see that modpost patch is in Linus tree. Thanks!)

-- 
vda
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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] HPPA : Define all the hppa specific _CLOEXEC and _NONBLOCK values
Date: Fri,  6 Aug 2010 14:02:04 +0200
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The following patch adds hppa specific files that define the various _CLOEXEC and
_NONBLOCK values in order to match the ones from the kernel.

Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
---
 ChangeLog.hppa                                    |   13 ++
 ports/sysdeps/unix/sysv/linux/hppa/sys/epoll.h    |  144 +++++++++++++++++++++
 ports/sysdeps/unix/sysv/linux/hppa/sys/eventfd.h  |   54 ++++++++
 ports/sysdeps/unix/sysv/linux/hppa/sys/inotify.h  |  105 +++++++++++++++
 ports/sysdeps/unix/sysv/linux/hppa/sys/signalfd.h |   66 ++++++++++
 ports/sysdeps/unix/sysv/linux/hppa/sys/timerfd.h  |   60 +++++++++
 6 files changed, 442 insertions(+), 0 deletions(-)

diff --git a/ChangeLog.hppa b/ChangeLog.hppa
index 2ccc911..fb5d803 100644
--- a/ChangeLog.hppa
+++ b/ChangeLog.hppa
@@ -1,3 +1,16 @@
+2010-08-06  Guy Martin <gmsoft@tuxicoman.be>
+
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/epoll.h
+	Fix EPOLL_CLOEXEC and EPOLL_NONBLOCK to match kernel definition.
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/eventfd.h
+	Fix EFD_CLOEXEC and EFD_NONBLOCK to match kernel definition.
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/inotify.h
+	Fix IN_CLOEXEC and IN_NONBLOCK to match kernel definition.
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/signalfd.h
+	Fix SFD_CLOEXEC and SFD_NONBLOCK to match kernel definition.
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/timerfd.h
+	Fix TFD_CLOEXEC and TFD_NONBLOCK to match kernel definition.
+
 2010-06-24  Carlos O'Donell  <carlos@codesourcery.com>
 
 	* sysdeps/unix/sysv/linux/hppa/nptl/pt-vfork.S: Only create stack 
diff --git a/ports/sysdeps/unix/sysv/linux/hppa/sys/epoll.h b/ports/sysdeps/unix/sysv/linux/hppa/sys/epoll.h
new file mode 100644
index 0000000..1931cc6
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/hppa/sys/epoll.h
@@ -0,0 +1,144 @@
+/* Copyright (C) 2002-2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_EPOLL_H
+#define	_SYS_EPOLL_H	1
+
+#include <stdint.h>
+#include <sys/types.h>
+
+/* Get __sigset_t.  */
+#include <bits/sigset.h>
+
+#ifndef __sigset_t_defined
+# define __sigset_t_defined
+typedef __sigset_t sigset_t;
+#endif
+
+
+/* Flags to be passed to epoll_create1.  */
+enum
+  {
+    EPOLL_CLOEXEC = 010000000,
+#define EPOLL_CLOEXEC EPOLL_CLOEXEC
+    EPOLL_NONBLOCK = 00200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define EPOLL_NONBLOCK EPOLL_NONBLOCK
+  };
+
+
+enum EPOLL_EVENTS
+  {
+    EPOLLIN = 0x001,
+#define EPOLLIN EPOLLIN
+    EPOLLPRI = 0x002,
+#define EPOLLPRI EPOLLPRI
+    EPOLLOUT = 0x004,
+#define EPOLLOUT EPOLLOUT
+    EPOLLRDNORM = 0x040,
+#define EPOLLRDNORM EPOLLRDNORM
+    EPOLLRDBAND = 0x080,
+#define EPOLLRDBAND EPOLLRDBAND
+    EPOLLWRNORM = 0x100,
+#define EPOLLWRNORM EPOLLWRNORM
+    EPOLLWRBAND = 0x200,
+#define EPOLLWRBAND EPOLLWRBAND
+    EPOLLMSG = 0x400,
+#define EPOLLMSG EPOLLMSG
+    EPOLLERR = 0x008,
+#define EPOLLERR EPOLLERR
+    EPOLLHUP = 0x010,
+#define EPOLLHUP EPOLLHUP
+    EPOLLRDHUP = 0x2000,
+#define EPOLLRDHUP EPOLLRDHUP
+    EPOLLONESHOT = (1 << 30),
+#define EPOLLONESHOT EPOLLONESHOT
+    EPOLLET = (1 << 31)
+#define EPOLLET EPOLLET
+  };
+
+
+/* Valid opcodes ( "op" parameter ) to issue to epoll_ctl().  */
+#define EPOLL_CTL_ADD 1	/* Add a file descriptor to the interface.  */
+#define EPOLL_CTL_DEL 2	/* Remove a file descriptor from the interface.  */
+#define EPOLL_CTL_MOD 3	/* Change file descriptor epoll_event structure.  */
+
+
+typedef union epoll_data
+{
+  void *ptr;
+  int fd;
+  uint32_t u32;
+  uint64_t u64;
+} epoll_data_t;
+
+struct epoll_event
+{
+  uint32_t events;	/* Epoll events */
+  epoll_data_t data;	/* User data variable */
+};
+
+
+__BEGIN_DECLS
+
+/* Creates an epoll instance.  Returns an fd for the new instance.
+   The "size" parameter is a hint specifying the number of file
+   descriptors to be associated with the new instance.  The fd
+   returned by epoll_create() should be closed with close().  */
+extern int epoll_create (int __size) __THROW;
+
+/* Same as epoll_create but with an FLAGS parameter.  The unused SIZE
+   parameter has been dropped.  */
+extern int epoll_create1 (int __flags) __THROW;
+
+
+/* Manipulate an epoll instance "epfd". Returns 0 in case of success,
+   -1 in case of error ( the "errno" variable will contain the
+   specific error code ) The "op" parameter is one of the EPOLL_CTL_*
+   constants defined above. The "fd" parameter is the target of the
+   operation. The "event" parameter describes which events the caller
+   is interested in and any associated user data.  */
+extern int epoll_ctl (int __epfd, int __op, int __fd,
+		      struct epoll_event *__event) __THROW;
+
+
+/* Wait for events on an epoll instance "epfd". Returns the number of
+   triggered events returned in "events" buffer. Or -1 in case of
+   error with the "errno" variable set to the specific error code. The
+   "events" parameter is a buffer that will contain triggered
+   events. The "maxevents" is the maximum number of events to be
+   returned ( usually size of "events" ). The "timeout" parameter
+   specifies the maximum wait time in milliseconds (-1 == infinite).
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int epoll_wait (int __epfd, struct epoll_event *__events,
+		       int __maxevents, int __timeout);
+
+
+/* Same as epoll_wait, but the thread's signal mask is temporarily
+   and atomically replaced with the one provided as parameter.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int epoll_pwait (int __epfd, struct epoll_event *__events,
+			int __maxevents, int __timeout,
+			__const __sigset_t *__ss);
+
+__END_DECLS
+
+#endif /* sys/epoll.h */
diff --git a/ports/sysdeps/unix/sysv/linux/hppa/sys/eventfd.h b/ports/sysdeps/unix/sysv/linux/hppa/sys/eventfd.h
new file mode 100644
index 0000000..751f276
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/hppa/sys/eventfd.h
@@ -0,0 +1,54 @@
+/* Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_EVENTFD_H
+#define	_SYS_EVENTFD_H	1
+
+#include <stdint.h>
+
+
+/* Type for event counter.  */
+typedef uint64_t eventfd_t;
+
+/* Flags for signalfd.  */
+enum
+  {
+    EFD_SEMAPHORE = 1,
+#define EFD_SEMAPHORE EFD_SEMAPHORE
+    EFD_CLOEXEC = 010000000,
+#define EFD_CLOEXEC EFD_CLOEXEC
+    EFD_NONBLOCK = 00200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define EFD_NONBLOCK EFD_NONBLOCK
+  };
+
+
+__BEGIN_DECLS
+
+/* Return file descriptor for generic event channel.  Set initial
+   value to COUNT.  */
+extern int eventfd (int __count, int __flags) __THROW;
+
+/* Read event counter and possibly wait for events.  */
+extern int eventfd_read (int __fd, eventfd_t *__value);
+
+/* Increment event counter.  */
+extern int eventfd_write (int __fd, eventfd_t __value);
+
+__END_DECLS
+
+#endif /* sys/eventfd.h */
diff --git a/ports/sysdeps/unix/sysv/linux/hppa/sys/inotify.h b/ports/sysdeps/unix/sysv/linux/hppa/sys/inotify.h
new file mode 100644
index 0000000..d293aee
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/hppa/sys/inotify.h
@@ -0,0 +1,105 @@
+/* Copyright (C) 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_INOTIFY_H
+#define	_SYS_INOTIFY_H	1
+
+#include <stdint.h>
+
+
+/* Flags for the parameter of inotify_init1.  */
+enum
+  {
+    IN_CLOEXEC = 010000000,
+#define IN_CLOEXEC IN_CLOEXEC
+    IN_NONBLOCK = 000200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define IN_NONBLOCK IN_NONBLOCK
+  };
+
+
+/* Structure describing an inotify event.  */
+struct inotify_event
+{
+  int wd;		/* Watch descriptor.  */
+  uint32_t mask;	/* Watch mask.  */
+  uint32_t cookie;	/* Cookie to synchronize two events.  */
+  uint32_t len;		/* Length (including NULs) of name.  */
+  char name __flexarr;	/* Name.  */
+};
+
+
+/* Supported events suitable for MASK parameter of INOTIFY_ADD_WATCH.  */
+#define IN_ACCESS	 0x00000001	/* File was accessed.  */
+#define IN_MODIFY	 0x00000002	/* File was modified.  */
+#define IN_ATTRIB	 0x00000004	/* Metadata changed.  */
+#define IN_CLOSE_WRITE	 0x00000008	/* Writtable file was closed.  */
+#define IN_CLOSE_NOWRITE 0x00000010	/* Unwrittable file closed.  */
+#define IN_CLOSE	 (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* Close.  */
+#define IN_OPEN		 0x00000020	/* File was opened.  */
+#define IN_MOVED_FROM	 0x00000040	/* File was moved from X.  */
+#define IN_MOVED_TO      0x00000080	/* File was moved to Y.  */
+#define IN_MOVE		 (IN_MOVED_FROM | IN_MOVED_TO) /* Moves.  */
+#define IN_CREATE	 0x00000100	/* Subfile was created.  */
+#define IN_DELETE	 0x00000200	/* Subfile was deleted.  */
+#define IN_DELETE_SELF	 0x00000400	/* Self was deleted.  */
+#define IN_MOVE_SELF	 0x00000800	/* Self was moved.  */
+
+/* Events sent by the kernel.  */
+#define IN_UNMOUNT	 0x00002000	/* Backing fs was unmounted.  */
+#define IN_Q_OVERFLOW	 0x00004000	/* Event queued overflowed.  */
+#define IN_IGNORED	 0x00008000	/* File was ignored.  */
+
+/* Helper events.  */
+#define IN_CLOSE	 (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE)	/* Close.  */
+#define IN_MOVE		 (IN_MOVED_FROM | IN_MOVED_TO)		/* Moves.  */
+
+/* Special flags.  */
+#define IN_ONLYDIR	 0x01000000	/* Only watch the path if it is a
+					   directory.  */
+#define IN_DONT_FOLLOW	 0x02000000	/* Do not follow a sym link.  */
+#define IN_MASK_ADD	 0x20000000	/* Add to the mask of an already
+					   existing watch.  */
+#define IN_ISDIR	 0x40000000	/* Event occurred against dir.  */
+#define IN_ONESHOT	 0x80000000	/* Only send event once.  */
+
+/* All events which a program can wait on.  */
+#define IN_ALL_EVENTS	 (IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE  \
+			  | IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM	      \
+			  | IN_MOVED_TO | IN_CREATE | IN_DELETE		      \
+			  | IN_DELETE_SELF | IN_MOVE_SELF)
+
+
+__BEGIN_DECLS
+
+/* Create and initialize inotify instance.  */
+extern int inotify_init (void) __THROW;
+
+/* Create and initialize inotify instance.  */
+extern int inotify_init1 (int __flags) __THROW;
+
+/* Add watch of object NAME to inotify instance FD.  Notify about
+   events specified by MASK.  */
+extern int inotify_add_watch (int __fd, const char *__name, uint32_t __mask)
+  __THROW;
+
+/* Remove the watch specified by WD from the inotify instance FD.  */
+extern int inotify_rm_watch (int __fd, int __wd) __THROW;
+
+__END_DECLS
+
+#endif /* sys/inotify.h */
diff --git a/ports/sysdeps/unix/sysv/linux/hppa/sys/signalfd.h b/ports/sysdeps/unix/sysv/linux/hppa/sys/signalfd.h
new file mode 100644
index 0000000..da8264e
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/hppa/sys/signalfd.h
@@ -0,0 +1,66 @@
+/* Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_SIGNALFD_H
+#define	_SYS_SIGNALFD_H	1
+
+#define __need_sigset_t
+#include <signal.h>
+#include <stdint.h>
+
+
+struct signalfd_siginfo
+{
+  uint32_t ssi_signo;
+  int32_t ssi_errno;
+  int32_t ssi_code;
+  uint32_t ssi_pid;
+  uint32_t ssi_uid;
+  int32_t ssi_fd;
+  uint32_t ssi_tid;
+  uint32_t ssi_band;
+  uint32_t ssi_overrun;
+  uint32_t ssi_trapno;
+  int32_t ssi_status;
+  int32_t ssi_int;
+  uint64_t ssi_ptr;
+  uint64_t ssi_utime;
+  uint64_t ssi_stime;
+  uint64_t ssi_addr;
+  uint8_t __pad[48];
+};
+
+/* Flags for signalfd.  */
+enum
+  {
+    SFD_CLOEXEC = 010000000,
+#define SFD_CLOEXEC SFD_CLOEXEC
+    SFD_NONBLOCK = 00200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define SFD_NONBLOCK SFD_NONBLOCK
+  };
+
+__BEGIN_DECLS
+
+/* Request notification for delivery of signals in MASK to be
+   performed using descriptor FD.*/
+extern int signalfd (int __fd, const sigset_t *__mask, int __flags)
+  __THROW __nonnull ((2));
+
+__END_DECLS
+
+#endif /* sys/signalfd.h */
diff --git a/ports/sysdeps/unix/sysv/linux/hppa/sys/timerfd.h b/ports/sysdeps/unix/sysv/linux/hppa/sys/timerfd.h
new file mode 100644
index 0000000..78cdfc4
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/hppa/sys/timerfd.h
@@ -0,0 +1,60 @@
+/* Copyright (C) 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_TIMERFD_H
+#define	_SYS_TIMERFD_H	1
+
+#include <time.h>
+
+
+/* Bits to be set in the FLAGS parameter of `timerfd_create'.  */
+enum
+  {
+    TFD_CLOEXEC = 010000000,
+#define TFD_CLOEXEC TFD_CLOEXEC
+    TFD_NONBLOCK = 000200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define TFD_NONBLOCK TFD_NONBLOCK
+  };
+
+
+/* Bits to be set in the FLAGS parameter of `timerfd_settime'.  */
+enum
+  {
+    TFD_TIMER_ABSTIME = 1 << 0
+#define TFD_TIMER_ABSTIME TFD_TIMER_ABSTIME
+  };
+
+
+__BEGIN_DECLS
+
+/* Return file descriptor for new interval timer source.  */
+extern int timerfd_create (clockid_t __clock_id, int __flags) __THROW;
+
+/* Set next expiration time of interval timer source UFD to UTMR.  If
+   FLAGS has the TFD_TIMER_ABSTIME flag set the timeout value is
+   absolute.  Optionally return the old expiration time in OTMR.  */
+extern int timerfd_settime (int __ufd, int __flags,
+			    __const struct itimerspec *__utmr,
+			    struct itimerspec *__otmr) __THROW;
+
+/* Return the next expiration time of UFD.  */
+extern int timerfd_gettime (int __ufd, struct itimerspec *__otmr) __THROW;
+
+__END_DECLS
+
+#endif /* sys/timerfd.h */
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Subject: Re: [PATCH] HPPA : Define all the hppa specific _CLOEXEC and 	_NONBLOCK values
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On Fri, Aug 6, 2010 at 8:02 AM, Guy Martin <gmsoft@tuxicoman.be> wrote:
> The following patch adds hppa specific files that define the various _CLOEXEC and
> _NONBLOCK values in order to match the ones from the kernel.

Is this because hppa doesn't use the same values as x86 and the only
way to get your own values is to modify your own copies of said files?

Cheers,
Carlos.


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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: Re: [PATCH] HPPA : Define all the hppa specific _CLOEXEC and 
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On Fri, 6 Aug 2010 10:34:12 -0400
"Carlos O'Donell" <carlos@systemhalted.org> wrote:
> 
> Is this because hppa doesn't use the same values as x86 and the only
> way to get your own values is to modify your own copies of said files?

As far as I can see, yes. Alpha is doing exactly the same thing.

Maybe a better fix would be to have glibc derive the value of all the
_CLOEXEC and _NONBLOCK from O_CLOEXEC and O_NONBLOCK instead of each
having its own copy. This is how they are defined in the kernel anyway.


Cheers,
  Guy
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On Fri, Aug 6, 2010 at 10:44 AM, Guy Martin <gmsoft@tuxicoman.be> wrote:
> On Fri, 6 Aug 2010 10:34:12 -0400
> "Carlos O'Donell" <carlos@systemhalted.org> wrote:
>>
>> Is this because hppa doesn't use the same values as x86 and the only
>> way to get your own values is to modify your own copies of said files?
>
> As far as I can see, yes. Alpha is doing exactly the same thing.
>
> Maybe a better fix would be to have glibc derive the value of all the
> _CLOEXEC and _NONBLOCK from O_CLOEXEC and O_NONBLOCK instead of each
> having its own copy. This is how they are defined in the kernel anyway.

Yes, it would be a better fix. However, I understand that this would
be more work and you may not have much time as a volunteer. Are you
interested in fixing this problem in a more general way? I would be
willing to help champion such a patch on libc-alpha.

It's getting a bit out of hand that each machine has to carry complete
copies of all of these headers.

Cheers,
Carlos.
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From - Thu Nov 08 21:06:12 2018
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On Fri, 6 Aug 2010 10:52:47 -0400
"Carlos O'Donell" <carlos@systemhalted.org> wrote:

> 
> Yes, it would be a better fix. However, I understand that this would
> be more work and you may not have much time as a volunteer. Are you
> interested in fixing this problem in a more general way? I would be
> willing to help champion such a patch on libc-alpha.

Sure, let me give it a try. I'll resend a patch going that way in a day
or two.

> It's getting a bit out of hand that each machine has to carry complete
> copies of all of these headers.

Yes I wasn't happy with the approach as well :)

Cheers,
  Guy
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On Fri, Aug 6, 2010 at 10:52 AM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> On Fri, Aug 6, 2010 at 10:44 AM, Guy Martin <gmsoft@tuxicoman.be> wrote:
>> On Fri, 6 Aug 2010 10:34:12 -0400
>> "Carlos O'Donell" <carlos@systemhalted.org> wrote:
>>>
>>> Is this because hppa doesn't use the same values as x86 and the only
>>> way to get your own values is to modify your own copies of said files?
>>
>> As far as I can see, yes. Alpha is doing exactly the same thing.
>>
>> Maybe a better fix would be to have glibc derive the value of all the
>> _CLOEXEC and _NONBLOCK from O_CLOEXEC and O_NONBLOCK instead of each
>> having its own copy. This is how they are defined in the kernel anyway.
>
> Yes, it would be a better fix. However, I understand that this would
> be more work and you may not have much time as a volunteer. Are you
> interested in fixing this problem in a more general way? I would be
> willing to help champion such a patch on libc-alpha.
>
> It's getting a bit out of hand that each machine has to carry complete
> copies of all of these headers.
>
> Cheers,
> Carlos.

I think we'd be interested in doing something like this for alpha as well.

Matt
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: Re: [PATCH] HPPA : Define all the hppa specific _CLOEXEC and 
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On Fri, 6 Aug 2010 11:20:32 -0400
Matt Turner <mattst88@gmail.com> wrote:

> On Fri, Aug 6, 2010 at 10:52 AM, Carlos O'Donell
> <carlos@systemhalted.org> wrote:
> > On Fri, Aug 6, 2010 at 10:44 AM, Guy Martin <gmsoft@tuxicoman.be>
> > wrote:
> >> On Fri, 6 Aug 2010 10:34:12 -0400
> >> "Carlos O'Donell" <carlos@systemhalted.org> wrote:
> >>>
> >>> Is this because hppa doesn't use the same values as x86 and the
> >>> only way to get your own values is to modify your own copies of
> >>> said files?
> >>
> >> As far as I can see, yes. Alpha is doing exactly the same thing.
> >>
> >> Maybe a better fix would be to have glibc derive the value of all
> >> the _CLOEXEC and _NONBLOCK from O_CLOEXEC and O_NONBLOCK instead
> >> of each having its own copy. This is how they are defined in the
> >> kernel anyway.
> >
> > Yes, it would be a better fix. However, I understand that this would
> > be more work and you may not have much time as a volunteer. Are you
> > interested in fixing this problem in a more general way? I would be
> > willing to help champion such a patch on libc-alpha.
> >
> > It's getting a bit out of hand that each machine has to carry
> > complete copies of all of these headers.
> >
> > Cheers,
> > Carlos.
> 
> I think we'd be interested in doing something like this for alpha as
> well.
> 
> Matt


It seems that sparc is doing the same as well.
I'll produce a patch for glibc and glibc-ports that cleans this up.

Cheers,
  Guy
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On Fri, Aug 6, 2010 at 11:25 AM, Guy Martin <gmsoft@tuxicoman.be> wrote:
> It seems that sparc is doing the same as well.
> I'll produce a patch for glibc and glibc-ports that cleans this up.

Thanks Guy, I look forward to reviewing the patch.

Cheers,
Carlos.
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From - Thu Nov 08 21:06:12 2018
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From - Thu Nov 08 21:06:13 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [rth@redhat.com: Re: [committed] Update config/pa/linux-atomic.c
	and enable sync tests on hppa-linux]
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----- Forwarded message from Richard Henderson <rth@redhat.com> -----

X-Original-To: dave@hiauly1.hia.nrc.ca
Delivered-To: dave@hiauly1.hia.nrc.ca
Date: Wed, 11 Aug 2010 11:03:11 -0700
From: Richard Henderson <rth@redhat.com>
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	Gecko/20100720 Fedora/3.1.1-1.fc13 Thunderbird/3.1.1
To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
CC: John David Anglin <dave@hiauly1.hia.nrc.ca>, gcc-patches@gcc.gnu.org
Subject: Re: [committed] Update config/pa/linux-atomic.c and enable sync tests
	on hppa-linux
In-Reply-To: <20100811022808.GA25554@hiauly1.hia.nrc.ca>
X-Scanned-By: MIMEDefang 2.67 on 10.5.11.12

On 08/10/2010 07:28 PM, John David Anglin wrote:
> The attached patches are essentially identical to that recently applied
> to arm.
> 
> Tested on hppa-unknown-linux-gnu with no observed regressions.  Committed
> to trunk.  Plan to backport to 4.4 and 4.5 after testing.

FWIW, I had a browse through this file and it's a bit off.  E.g.:

> __sync_val_compare_and_swap_4 (int *ptr, int oldval, int newval)
> {
>   int actual_oldval, fail;
>     
>   while (1)
>     {
>       actual_oldval = *ptr;
> 
>       if (oldval != actual_oldval)
>         return actual_oldval;
> 
>       fail = __kernel_cmpxchg (actual_oldval, newval, ptr);
>   
>       if (!fail)
>         return oldval;
>     }
> }

This should not be returning the OLDVAL that the user passed,
it should be returning the lws_ret that the kernel returned.

This is because the user of __sync_val_c_a_s wants avoid the
reload of the value, like so (from libgomp/iter.c):

>       tmp = __sync_val_compare_and_swap (&ws->next, start, nend);
>       if (__builtin_expect (tmp == start, 1))
>         break;
>       start = tmp;

You might be better writing

static int
__kernel_cmpxchg (int oldval, int newval, int *mem)
{
  do {
    asm(...);
  } while (lws_errno == -EAGAIN);

  /* Other possibilities are EFAULT, ENOSYS, EDEADLOCK.  */
  if (__builtin_expect (lws_errno != 0, 0))
    {
      ABORT_INSTRUCTION;
      __builtin_unreachable ();
    }
    
  return lws_ret;
}

and totally hiding the possibility of kernel failure.

This, incidentally, is exactly the implementation of
__sync_val_c_a_s, with arguments in a different order.


r~

----- End forwarded message -----

-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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I noticed, that shmctl(SHM_INFO) is broken when running on a 64bit
kernel (with 32bit userspace).
I assume we need to enable the IPC compat layer, at least for some
functions.

Below is a preliminary patch - the compat_XXX structures are probably
wrong and need changing. I think I copied them from a little-endian
architecture, while I better should have checked with a big-endian one.
So, please DO NOT apply yet.

And, we need to check the other ipc_compat functions as well...

Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 05a366a..e2fe95c 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -289,6 +289,10 @@ menu "Executable file formats"
 
 source "fs/Kconfig.binfmt"
 
+config SYSVIPC_COMPAT
+	def_bool y
+	depends on COMPAT && SYSVIPC
+
 endmenu
 
 source "net/Kconfig"
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 02b77ba..bbbe256 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -29,6 +29,7 @@ typedef u16	compat_ipc_pid_t;
 typedef s32	compat_daddr_t;
 typedef u32	compat_caddr_t;
 typedef s32	compat_timer_t;
+typedef s32	compat_key_t;
 
 typedef s32	compat_int_t;
 typedef s32	compat_long_t;
@@ -129,6 +130,65 @@ typedef u32		compat_sigset_word;
 #define COMPAT_OFF_T_MAX	0x7fffffff
 #define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL
 
+
+struct compat_ipc64_perm {
+	compat_key_t key;
+	__compat_uid32_t uid;
+	__compat_gid32_t gid;
+	__compat_uid32_t cuid;
+	__compat_gid32_t cgid;
+	unsigned short mode;
+	unsigned short __pad1;
+	unsigned short seq;
+	unsigned short __pad2;
+	compat_ulong_t unused1;
+	compat_ulong_t unused2;
+};
+
+struct compat_semid64_ds {
+	struct compat_ipc64_perm sem_perm;
+	compat_time_t  sem_otime;
+	compat_ulong_t __unused1;
+	compat_time_t  sem_ctime;
+	compat_ulong_t __unused2;
+	compat_ulong_t sem_nsems;
+	compat_ulong_t __unused3;
+	compat_ulong_t __unused4;
+};
+
+struct compat_msqid64_ds {
+	struct compat_ipc64_perm msg_perm;
+	compat_time_t  msg_stime;
+	compat_ulong_t __unused1;
+	compat_time_t  msg_rtime;
+	compat_ulong_t __unused2;
+	compat_time_t  msg_ctime;
+	compat_ulong_t __unused3;
+	compat_ulong_t msg_cbytes;
+	compat_ulong_t msg_qnum;
+	compat_ulong_t msg_qbytes;
+	compat_pid_t   msg_lspid;
+	compat_pid_t   msg_lrpid;
+	compat_ulong_t __unused4;
+	compat_ulong_t __unused5;
+};
+
+struct compat_shmid64_ds {
+	struct compat_ipc64_perm shm_perm;
+	compat_size_t  shm_segsz;
+	compat_time_t  shm_atime;
+	compat_ulong_t __unused1;
+	compat_time_t  shm_dtime;
+	compat_ulong_t __unused2;
+	compat_time_t  shm_ctime;
+	compat_ulong_t __unused3;
+	compat_pid_t   shm_cpid;
+	compat_pid_t   shm_lpid;
+	compat_ulong_t shm_nattch;
+	compat_ulong_t __unused4;
+	compat_ulong_t __unused5;
+};
+
 /*
  * A pointer passed in from user mode. This should not
  * be used for syscall parameters, just declare them
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 3d52c97..5293c90 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -293,7 +293,7 @@
 	ENTRY_SAME(shmat)
 	ENTRY_SAME(shmdt)
 	ENTRY_SAME(shmget)
-	ENTRY_SAME(shmctl)		/* 195 */
+	ENTRY_COMP(shmctl)		/* 195 */
 	ENTRY_SAME(ni_syscall)		/* streams1 */
 	ENTRY_SAME(ni_syscall)		/* streams2 */
 	ENTRY_SAME(lstat64)
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From - Thu Nov 08 21:06:13 2018
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From - Thu Nov 08 21:06:13 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [alerts@alerts.hp.com: HP SUPPORT ALERT: Change to Patch services
	effective September 18, 2010 ? Action required]
Date: Wed, 18 Aug 2010 21:33:47 -0400
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I have forwarded this message to the list because I believe that
this change by HP  will impact my support of GCC and binutils on parisc
particularly for hpux.  However, I have always felt that hpux testing
provided an important validation for linux.  For many years (since
at least 1990), patches were available without a support agreement.

Comments?

Dave

----- Forwarded message from Hewlett-Packard <alerts@alerts.hp.com> -----

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Date: Wed, 18 Aug 2010 17:05:52 -0700 (PDT)
From: Hewlett-Packard <alerts@alerts.hp.com>
Reply-to: alerts@alerts.hp.com
To: dave@hiauly1.hia.nrc.ca
Subject: HP SUPPORT ALERT: Change to Patch services effective September 18,
	2010 ? Action required
Errors-to: alerts@alerts.hp.com
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Important note: As of September 17 (or shortly thereafter), HP
will institute a change in the way that Patch services are accessed.
Beginning at that time, Patch access will be through the ITRC support
portal. You need to have a valid ITRC user ID and password and will
now also need an active HP support agreement that includes Software
Updates linked to your ITRC profile to access Patch content and
services. We urge you to review your current support coverage now to
ensure you have valid coverage and can maintain uninterrupted access
to Patch. To obtain support coverage, please contact your local HP
office or representative or visit the link below to
access HP via Chat or phone.
http://alerts.hp.com/r?2.1.3KT.2ZR.xxGiM.ExY8wI..T.Unbs.3U3g.bW89MQ%5f%5fDNRYFTT0 

For more information, please read the FAQs here:
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----- End forwarded message -----

-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:13 2018
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From: Stephen Boyd <sboyd@codeaurora.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.arm.kernel
Subject: [PATCHv2 2/1] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
Date: Wed, 18 Aug 2010 19:28:18 -0700
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Cc: linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	x86@kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-s390@vger.kernel.org, linux-parisc@vger.kernel.org,
	Arjan van de Ven <arjan@linux.intel.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Helge Deller <deller@gmx.de>
To: linux-arch@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/3042>

The help text for this config is duplicated across the x86,
parisc, s390, and arm Kconfig.debug files. Arnd Bergman noted
that the help text was slightly misleading and should be fixed to
state that enabling this option isn't a problem when using pre 4.4
gcc.

To simplify the rewording, consolidate the text into
lib/Kconfig.debug and modify it there to be more explicit about
when you should say N to this config.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: x86@kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-s390@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
---

This depends on a patch sent to the arm mailing list adding
CONFIG_DEBUG_STRICT_USER_COPY_CHECKS to ARM.

LKML: http://lkml.org/lkml/2010/8/17/535

 arch/arm/Kconfig.debug    |   15 ++-------------
 arch/parisc/Kconfig.debug |   15 ++-------------
 arch/s390/Kconfig.debug   |   14 ++------------
 arch/x86/Kconfig.debug    |   15 ++-------------
 lib/Kconfig.debug         |   16 ++++++++++++++++
 5 files changed, 24 insertions(+), 51 deletions(-)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 64e33b8..326c7f1 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -128,18 +128,7 @@ config DEBUG_S3C_UART
 	  The uncompressor code port configuration is now handled
 	  by CONFIG_S3C_LOWLEVEL_UART_PORT.
 
-config DEBUG_STRICT_USER_COPY_CHECKS
-	bool "Strict user copy size checks"
-	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
-	help
-	  Enabling this option turns a certain set of sanity checks for user
-	  copy operations into compile time errors.
-
-	  The copy_from_user() etc checks are there to help test if there
-	  are sufficient security checks on the length argument of
-	  the copy operation, by having gcc prove that the argument is
-	  within bounds.
-
-	  If unsure, or if you run an older (pre 4.4) gcc, say N.
+config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	def_bool y
 
 endmenu
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 7305ac8..b13e8d0 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -12,18 +12,7 @@ config DEBUG_RODATA
          portion of the kernel code won't be covered by a TLB anymore.
          If in doubt, say "N".
 
-config DEBUG_STRICT_USER_COPY_CHECKS
-	bool "Strict copy size checks"
-	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
-	---help---
-	  Enabling this option turns a certain set of sanity checks for user
-	  copy operations into compile time failures.
-
-	  The copy_from_user() etc checks are there to help test if there
-	  are sufficient security checks on the length argument of
-	  the copy operation, by having gcc prove that the argument is
-	  within bounds.
-
-	  If unsure, or if you run an older (pre 4.4) gcc, say N.
+config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	def_bool y
 
 endmenu
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index 45e0c61..6df8e30 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -6,17 +6,7 @@ config TRACE_IRQFLAGS_SUPPORT
 
 source "lib/Kconfig.debug"
 
-config DEBUG_STRICT_USER_COPY_CHECKS
-	bool "Strict user copy size checks"
-	---help---
-	  Enabling this option turns a certain set of sanity checks for user
-	  copy operations into compile time warnings.
-
-	  The copy_from_user() etc checks are there to help test if there
-	  are sufficient security checks on the length argument of
-	  the copy operation, by having gcc prove that the argument is
-	  within bounds.
-
-	  If unsure, or if you run an older (pre 4.4) gcc, say N.
+config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	def_bool y
 
 endmenu
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 7508508..d24afa3 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -285,18 +285,7 @@ config OPTIMIZE_INLINING
 
 	  If unsure, say N.
 
-config DEBUG_STRICT_USER_COPY_CHECKS
-	bool "Strict copy size checks"
-	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
-	---help---
-	  Enabling this option turns a certain set of sanity checks for user
-	  copy operations into compile time failures.
-
-	  The copy_from_user() etc checks are there to help test if there
-	  are sufficient security checks on the length argument of
-	  the copy operation, by having gcc prove that the argument is
-	  within bounds.
-
-	  If unsure, or if you run an older (pre 4.4) gcc, say N.
+config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	def_bool y
 
 endmenu
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 9e06b7f..bbb1ac5 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1013,6 +1013,22 @@ config SYSCTL_SYSCALL_CHECK
 	  to properly maintain and use. This enables checks that help
 	  you to keep things correct.
 
+config DEBUG_STRICT_USER_COPY_CHECKS
+	bool "Strict user copy size checks"
+	depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
+	help
+	  Enabling this option turns a certain set of sanity checks for user
+	  copy operations into compile time warnings/errors.
+
+	  The copy_from_user() etc checks are there to help test if there
+	  are sufficient security checks on the length argument of
+	  the copy operation, by having gcc prove that the argument is
+	  within bounds.
+
+	  If unsure, or if you run an older (pre 4.4) gcc where this option
+	  is a no-op, say N.
+
 source mm/Kconfig.debug
 source kernel/trace/Kconfig
 
-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

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From - Thu Nov 08 21:06:13 2018
X-Mozilla-Status: 0011
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X-Mozilla-Keys:                                                                                 
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From: Arjan van de Ven <arjan@linux.intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.arm.kernel
Subject: Re: [PATCHv2 2/1] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
Date: Wed, 18 Aug 2010 21:38:34 -0700
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To: Stephen Boyd <sboyd@codeaurora.org>
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On 8/18/2010 7:28 PM, Stephen Boyd wrote:
> The help text for this config is duplicated across the x86,
> parisc, s390, and arm Kconfig.debug files. Arnd Bergman noted
> that the help text was slightly misleading and should be fixed to
> state that enabling this option isn't a problem when using pre 4.4
> gcc.
>
> To simplify the rewording, consolidate the text into
> lib/Kconfig.debug and modify it there to be more explicit about
> when you should say N to this config.
>    


Acked-by: Arjan van de Ven <arjan@linux.intel.com>
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Subject: Re: [PATCHv2 2/1] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
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On Wed, 18 Aug 2010 19:28:18 -0700 Stephen Boyd <sboyd@codeaurora.org> wrot=
e:
>
> +config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
> +	def_bool y

Why not just have

config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
	bool

in lib/Kconfig.debug

and select that in each arch that want it?

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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From - Thu Nov 08 21:06:13 2018
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Subject: Re: [PATCHv2 2/1] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
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On Thursday 19 August 2010, Stephen Rothwell wrote:
>   On Wed, 18 Aug 2010 19:28:18 -0700 Stephen Boyd <sboyd@codeaurora.org> wrote:
> >
> > +config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
> > +     def_bool y
> 
> Why not just have
> 
> config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
>         bool
> 
> in lib/Kconfig.debug
> 
> and select that in each arch that want it?
> 

Yes, that would be even easier, thanks for the suggestion!

	Arnd

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Subject: Re: [alerts@alerts.hp.com: HP SUPPORT ALERT: Change to Patch services
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On Wed, Aug 18, 2010 at 9:33 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> I have forwarded this message to the list because I believe that
> this change by HP =A0will impact my support of GCC and binutils on pa=
risc
> particularly for hpux. =A0However, I have always felt that hpux testi=
ng
> provided an important validation for linux. =A0For many years (since
> at least 1990), patches were available without a support agreement.
>
> Comments?

Sorry, could you please clarify your position?

Cheers,
CArlos.
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On Thu, 19 Aug 2010, Carlos O'Donell wrote:

> On Wed, Aug 18, 2010 at 9:33 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> > I have forwarded this message to the list because I believe that
> > this change by HP =A0will impact my support of GCC and binutils on =
parisc
> > particularly for hpux. =A0However, I have always felt that hpux tes=
ting
> > provided an important validation for linux. =A0For many years (sinc=
e
> > at least 1990), patches were available without a support agreement.
> >
> > Comments?
>=20
> Sorry, could you please clarify your position?

I have to say I'm surprised by the change.  I think it will lead to
HP hardware and software products being viewed as unreliable and insecu=
re
as most small businesses and software developers can't afford support
agreements.  When I had a HP system with a support agreement (early 90s=
),
the cost was a few thousand a year (can't remember what it exactly cove=
red).
There is a place for support agreements in large enterprises for missio=
n
critical products.

I have no objection to a timed phase out of support for any product, bu=
t
I think it unusual that HP will require a support agreement to access
its patch database.  Microsoft, Apple and many others provide automatic
updates for serious bugs and security problems for the nominal support
life of their products.  Patching HP-UX is still pretty much a manual
operation, and the patch database provides important clues as to what
a given patch fixes.  As far as I know, there are no product enhancemen=
ts
available through the patch database.

The full implications of the change are not clear.  For example, patche=
s
have been available via ftp without using the patch database.  It may
not apply to products that don't use the patch database for distributio=
n.

Sendmail is broken again in HP-UX (HPSBUX02508 SSRT100007 rev.2)...
Dave
--=20
J. David Anglin                                  dave.anglin@nrc-cnrc.g=
c.ca
National Research Council of Canada              (613) 990-0752 (FAX: 9=
52-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [alerts@alerts.hp.com: HP SUPPORT ALERT: Change to Patch services
 effective September 18, 2010 ? Action required]
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On Thu, Aug 19, 2010 at 1:00 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> The full implications of the change are not clear. =A0For example, pa=
tches
> have been available via ftp without using the patch database. =A0It m=
ay
> not apply to products that don't use the patch database for distribut=
ion.
>
> Sendmail is broken again in HP-UX (HPSBUX02508 SSRT100007 rev.2)...

I see your point, and I understand that HP-UX support has helped the
Linux support.

If all you need is an FTP server, can't you talk to your HP contacts
and set something up to start holding patches?

Cheers,
Carlos.
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From - Thu Nov 08 21:06:14 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [alerts@alerts.hp.com: HP SUPPORT ALERT: Change to Patch
	services effective September 18, 2010 ? Action required]
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On Thu, 19 Aug 2010, Carlos O'Donell wrote:

> I see your point, and I understand that HP-UX support has helped the
> Linux support.

Definitely.  The change will make it more difficult for open source
developers to support HP-UX.  That's my underlying reason for the post.

Within the GCC community, HP-UX support is viewed as more important
than Linux.  Adacore supports a few mission critical applications
on HP-UX (ATC, I believe).  Recently, patch levels came up regarding
one of my bug fixes (libc changes).

> If all you need is an FTP server, can't you talk to your HP contacts
> and set something up to start holding patches?

I believe that there are copyright issues.  Sadly, my contacts at HP
are now reduced to one.  So, I'm not very hopeful.

At some point, it won't be worthwhile continuing to support parisc
and ia64 within GCC and binutils.  I would judge it takes 500 to a
1000 hours a year to support GCC.  Recently, two GCC bugs appeared
which involved mis-compilation of the compiler.  These are very hard
to track down.  One is still not fixed although the cause of the
bug is known (fwprop).  It breaks hppa64 builds.  I think it could
affect 32-bit as well, and it is likely present in older versions.

Regarding rp3440 firmware, I noticed recently that the pdc firmware
wasn't testing memory correctly and it was disabling DIMMs.  This would
cause restart failures.  So, I updated the firmware to the latest version.
The system seems stable again running a UP kernel.  Haven't had a chance
to test SMP yet.  I suspect that the firmware may have been responsible
for some cache corruption.

On a positive front, squeeze with kde seem to be largely working on my
c3750.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:14 2018
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From: "Luck, Tony" <tony.luck@intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ia64
Subject: [RFC - PATCH] leave guard page for upwardly growing stacks too
Date: Fri, 20 Aug 2010 10:56:47 -0700
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	"Kyle McMartin" <kyle@mcmartin.ca>, "Helge Deller" <deller@gmx.de>,
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In commit 320b2b8de12698082609ebbc1a17165727f4c893
   mm: keep a guard page below a grow-down stack segment

we prevented stacks from growing downwards into other vma areas.
But some arhictectures (ia64 and pa-risc) have stacks that
grow upwards. Provide the same protection for them.

Signed-off-by: Tony Luc <tony.luck@intel.com>

---

Pointed out to me by Matthew Wilcox.

DANGER, DANGER - NOT TESTED on pa-risc yet DO NOT APPLY WITHOUT AN ACK FROM PA-RISC LAND!

Are there any other architectures with upward growing stacks?

diff --git a/mm/memory.c b/mm/memory.c
index b6e5fd2..9dcef72 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2760,21 +2760,35 @@ out_release:
 }
 
 /*
- * This is like a special single-page "expand_downwards()",
- * except we must first make sure that 'address-PAGE_SIZE'
+ * This is like a special single-page "expand_{down|up}wards()",
+ * except we must first make sure that 'address{-|+}PAGE_SIZE'
  * doesn't hit another vma.
  *
  * The "find_vma()" will do the right thing even if we wrap
  */
 static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address)
 {
-	address &= PAGE_MASK;
-	if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) {
-		address -= PAGE_SIZE;
-		if (find_vma(vma->vm_mm, address) != vma)
-			return -ENOMEM;
+	struct vm_area_struct *v;
+
+	if (vma->vm_flags & VM_GROWSDOWN) {
+		address &= PAGE_MASK;
+		if (address == vma->vm_start) {
+			address -= PAGE_SIZE;
+			if (find_vma(vma->vm_mm, address) != vma)
+				return -ENOMEM;
 
-		expand_stack(vma, address);
+			expand_stack(vma, address);
+		}
+	} else if (vma->vm_flags & VM_GROWSUP) {
+		address = PAGE_ALIGN(address + 1);
+		if (address == vma->vm_end) {
+			address += PAGE_SIZE;
+			if ((v = find_vma(vma->vm_mm, address)) &&
+				v->vm_start <= address) {
+				return -ENOMEM;
+			}
+			expand_upwards(vma, address);
+		}
 	}
 	return 0;
 }
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Your email address has won =C2=A3980,000.00 GBP, get back to us via ema=
il,with your F
ull Name,Address,Telephone,Occupation,Country.

Contact For Award Recipient
Dr.Arnold Griffin.

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From - Thu Nov 08 21:06:14 2018
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From: "Luck, Tony" <tony.luck@intel.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH] guard page for stacks that grow upwards
Date: Tue, 24 Aug 2010 09:31:41 -0700
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To: "Linus Torvalds" <torvalds@linux-foundation.org>
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pa-risc and ia64 have stacks that grow upwards. Check that
they do not run into other mappings.

Signed-off-by: Tony Luck <tony.luck@intel.com>

---

Updated to match the new code - still not tested on pa-risc.
The #ifdefs are ugly - suggestions welcome on how to make
the code prettier.

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 709f672..089d135 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1330,7 +1330,7 @@ unsigned long ra_submit(struct file_ra_state *ra,
 
 /* Do stack extension */
 extern int expand_stack(struct vm_area_struct *vma, unsigned long address);
-#ifdef CONFIG_IA64
+#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
 extern int expand_upwards(struct vm_area_struct *vma, unsigned long address);
 #endif
 extern int expand_stack_downwards(struct vm_area_struct *vma,
diff --git a/mm/memory.c b/mm/memory.c
index 2ed2267..5127b1c 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2760,29 +2760,43 @@ out_release:
 }
 
 /*
- * This is like a special single-page "expand_downwards()",
- * except we must first make sure that 'address-PAGE_SIZE'
+ * This is like a special single-page "expand_{down|up}wards()",
+ * except we must first make sure that 'address{-|+}PAGE_SIZE'
  * doesn't hit another vma.
- *
- * The "find_vma()" will do the right thing even if we wrap
  */
 static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address)
 {
-	address &= PAGE_MASK;
-	if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) {
-		struct vm_area_struct *prev = vma->vm_prev;
+	if (vma->vm_flags & VM_GROWSDOWN) {
+		address &= PAGE_MASK;
+		if (address == vma->vm_start) {
+			struct vm_area_struct *prev = vma->vm_prev;
 
-		/*
-		 * Is there a mapping abutting this one below?
-		 *
-		 * That's only ok if it's the same stack mapping
-		 * that has gotten split..
-		 */
-		if (prev && prev->vm_end == address)
-			return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM;
+			/*
+			 * Is there a mapping abutting this one below?
+			 *
+			 * That's only ok if it's the same stack mapping
+			 * that has gotten split..
+			 */
+			if (prev && prev->vm_end == address)
+				return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM;
 
-		expand_stack(vma, address - PAGE_SIZE);
+			expand_stack(vma, address - PAGE_SIZE);
+		}
+	}
+#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
+	else if (vma->vm_flags & VM_GROWSUP) {
+		address = PAGE_ALIGN(address + 1);
+		if (address == vma->vm_end) {
+			struct vm_area_struct *next = vma->vm_next;
+
+			/* As VM_GROWSDOWN but s/below/above/ */
+			if (next && next->vm_start == address)
+				return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM;
+
+			expand_upwards(vma, address);
+		}
 	}
+#endif
 	return 0;
 }
 
diff --git a/mm/mmap.c b/mm/mmap.c
index 331e51a..6128dc8 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1716,9 +1716,6 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
  * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
  * vma is the last one with address > vma->vm_end.  Have to extend vma.
  */
-#ifndef CONFIG_IA64
-static
-#endif
 int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 {
 	int error;
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Subject: Re: [PATCH] guard page for stacks that grow upwards
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On Tue, Aug 24, 2010 at 9:31 AM, Luck, Tony <tony.luck@intel.com> wrote:
>
> Updated to match the new code - still not tested on pa-risc.

But the ia64 grows-up case is tested?

> The #ifdefs are ugly - suggestions welcome on how to make
> the code prettier.

One thing I've considered is to get rid of the CONFIG_STACK_GROWSUP
crap entirely in code, and instead just make the VM_GROWSUP #define be
0 for architectures that don't want it. The compiler should then just
automatically remove all the code that says

   if (vma->vm_flags & VM_GROWSUP) {
     ...

and the code would look more straightforward. Hmm?

                    Linus
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Subject: RE: [PATCH] guard page for stacks that grow upwards
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> But the ia64 grows-up case is tested?

Yes. The attached hacky test program reports that the RSE stack
stomps over the mmap'd segment w/o this patch. With it the
program dies with a SIGBUS. Should be easy to adapt to
test on pa-risc (hint, hint to parisc people).

>> The #ifdefs are ugly - suggestions welcome on how to make
>> the code prettier.
>
> One thing I've considered is to get rid of the CONFIG_STACK_GROWSUP
> crap entirely in code, and instead just make the VM_GROWSUP #define be
> 0 for architectures that don't want it. The compiler should then just
> automatically remove all the code that says
>
>   if (vma->vm_flags & VM_GROWSUP) {
>     ...
>
> and the code would look more straightforward. Hmm?

You'd also need some stub declaration for expand_upwards().
But overall that would look cleaner.

-Tony

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Hmm. Looking at the patch a bit more..

On Tue, Aug 24, 2010 at 9:31 AM, Luck, Tony <tony.luck@intel.com> wrote=
:
>
> +#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
> + =A0 =A0 =A0 else if (vma->vm_flags & VM_GROWSUP) {
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 address =3D PAGE_ALIGN(address + 1);
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 if (address =3D=3D vma->vm_end) {

So I react to two things:

 - that "else" looks wrong. At least conceptually, both could happen -
the code should be entirely able to handle a segment that expands both
ways (which is something that ia64 could do: stack one way, register
spills etc other, all in just one happy vma). I guess we don't set it
up that way now, but the "else" just annoys my sense of aesthetics.
It's an extra four letters that don't add value - just takes it away.

 - The "address =3D PAGE_ALIGN(address + 1);" thing is just ugly.
Wouldn't it be nicer to just move the earlier

  address &=3D PAGE_MASK

back outside the conditionals (and keep the original conditional the
way it was - you only changed it for that bogus "else" case anyway),
and then do

  if (address + PAGE_SIZE =3D=3D vma->vm_end)

rather than have "PAGE_ALIGN(address + 1)" as yet another way of
aligning the address just right.

No?

                              Linus
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Subject: RE: [PATCH] guard page for stacks that grow upwards
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>  - that "else" looks wrong. At least conceptually, both could happen -
> the code should be entirely able to handle a segment that expands both
> ways (which is something that ia64 could do: stack one way, register
> spills etc other, all in just one happy vma). I guess we don't set it
> up that way now, but the "else" just annoys my sense of aesthetics.
> It's an extra four letters that don't add value - just takes it away.

Conceptually yes we could - I don't suppose we ever will as keeping
separate vmas for stack and RSE stack defends against underflow in
a program that has totally messed up.  But I can save 4 bytes of
source code and drop the "else".

> - The "address = PAGE_ALIGN(address + 1);" thing is just ugly.
> Wouldn't it be nicer to just move the earlier
>
>  address &= PAGE_MASK

This mask might be redundant ... I didn't look at the call
sequence, but I've observed that "address" happens to be page
aligned in all my tests.

> back outside the conditionals (and keep the original conditional the
> way it was - you only changed it for that bogus "else" case anyway),
> and then do
>
>  if (address + PAGE_SIZE == vma->vm_end)
>
> rather than have "PAGE_ALIGN(address + 1)" as yet another way of
> aligning the address just right.

Yes, that works too.

Coding revised version now.

-Tony
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From: "Luck, Tony" <tony.luck@intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ia64
Subject: [PATCH v2] guard page for stacks that grow upwards
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To: "Linus Torvalds" <torvalds@linux-foundation.org>
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pa-risc and ia64 have stacks that grow upwards. Check that
they do not run into other mappings. By making VM_GROWSUP
0x0 on architectures that do not ever use it, we can avoid
some unpleasant #ifdefs in check_stack_guard_page().

Signed-off-by: Tony Luck <tony.luck@intel.com>

---

Built, booted & tested on ia64
Built for x86_64 (but not booted or tested)
pa-risc - untested

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 709f672..77e6336 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -78,7 +78,11 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_MAYSHARE	0x00000080
 
 #define VM_GROWSDOWN	0x00000100	/* general info on the segment */
+#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
 #define VM_GROWSUP	0x00000200
+#else
+#define VM_GROWSUP	0x00000000
+#endif
 #define VM_PFNMAP	0x00000400	/* Page-ranges managed without "struct page", just pure PFN */
 #define VM_DENYWRITE	0x00000800	/* ETXTBSY on write attempts.. */
 
@@ -1330,8 +1334,10 @@ unsigned long ra_submit(struct file_ra_state *ra,
 
 /* Do stack extension */
 extern int expand_stack(struct vm_area_struct *vma, unsigned long address);
-#ifdef CONFIG_IA64
+#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
 extern int expand_upwards(struct vm_area_struct *vma, unsigned long address);
+#else
+#define	expand_upwards(vma, address)
 #endif
 extern int expand_stack_downwards(struct vm_area_struct *vma,
 				  unsigned long address);
diff --git a/mm/memory.c b/mm/memory.c
index 2ed2267..6b2ab10 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2760,11 +2760,9 @@ out_release:
 }
 
 /*
- * This is like a special single-page "expand_downwards()",
- * except we must first make sure that 'address-PAGE_SIZE'
+ * This is like a special single-page "expand_{down|up}wards()",
+ * except we must first make sure that 'address{-|+}PAGE_SIZE'
  * doesn't hit another vma.
- *
- * The "find_vma()" will do the right thing even if we wrap
  */
 static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address)
 {
@@ -2783,6 +2781,15 @@ static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned lo
 
 		expand_stack(vma, address - PAGE_SIZE);
 	}
+	if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) {
+		struct vm_area_struct *next = vma->vm_next;
+
+		/* As VM_GROWSDOWN but s/below/above/ */
+		if (next && next->vm_start == address + PAGE_SIZE)
+			return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM;
+
+		expand_upwards(vma, address + PAGE_SIZE);
+	}
 	return 0;
 }
 
diff --git a/mm/mmap.c b/mm/mmap.c
index 331e51a..6128dc8 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1716,9 +1716,6 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
  * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
  * vma is the last one with address > vma->vm_end.  Have to extend vma.
  */
-#ifndef CONFIG_IA64
-static
-#endif
 int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 {
 	int error;
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On Tue, Aug 24, 2010 at 11:44 AM, Luck, Tony <tony.luck@intel.com> wrote:
>
> Built, booted & tested on ia64
> Built for x86_64 (but not booted or tested)
> pa-risc - untested

Ok, applied. I do think we could do the "VM_GROWSDOWN = 0" trick for
PA-RISC  (so that the code for the growsdown case would be compiled
away there), but that definitely needs somebody who actually cares
specifically about PA-RISC.

Adding the people who have signed off on parisc-specific patches in
recent memory to the cc. Maybe somebody could be convinced to care.

                         Linus
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On Tue, 2010-08-24 at 13:19 -0700, Linus Torvalds wrote:
> On Tue, Aug 24, 2010 at 11:44 AM, Luck, Tony <tony.luck@intel.com> wrote:
> >
> > Built, booted & tested on ia64
> > Built for x86_64 (but not booted or tested)
> > pa-risc - untested
> 
> Ok, applied. I do think we could do the "VM_GROWSDOWN = 0" trick for
> PA-RISC  (so that the code for the growsdown case would be compiled
> away there), but that definitely needs somebody who actually cares
> specifically about PA-RISC.

I can try it ... I was just getting ready to try the -rc2 kernel on our
cupertino test ring anyway.

James


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From: "Luck, Tony" <tony.luck@intel.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ia64
Subject: [PATCH] hide guard page for stacks that grow upwards
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To: "Linus Torvalds" <torvalds@linux-foundation.org>
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pa-risc and ia64 have stacks that grow upwards. Don't
show the guard page on upward growing vma in /proc/$$/maps

Signed-off-by: Tony Luck <tony.luck@intel.com>

---

This looks useful too ... but I can't see where the code is that
made vm_start be PAGE_SIZE lower to begin with. I'd expect to have
to make a matching change to make vm_end PAGE_SIZE higher for the
VM_GROWSUP areas.

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 439fc1f..ef262f6 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -210,7 +210,7 @@ static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
 	int flags = vma->vm_flags;
 	unsigned long ino = 0;
 	unsigned long long pgoff = 0;
-	unsigned long start;
+	unsigned long start, end;
 	dev_t dev = 0;
 	int len;
 
@@ -223,12 +223,15 @@ static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
 
 	/* We don't show the stack guard page in /proc/maps */
 	start = vma->vm_start;
+	end = vma->vm_end;
 	if (vma->vm_flags & VM_GROWSDOWN)
 		start += PAGE_SIZE;
+	if (vma->vm_flags & VM_GROWSUP)
+		end -= PAGE_SIZE;
 
 	seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
 			start,
-			vma->vm_end,
+			end,
 			flags & VM_READ ? 'r' : '-',
 			flags & VM_WRITE ? 'w' : '-',
 			flags & VM_EXEC ? 'x' : '-',

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On Tue, Aug 24, 2010 at 3:03 PM, Luck, Tony <tony.luck@intel.com> wrote:
>
> This looks useful too ... but I can't see where the code is that
> made vm_start be PAGE_SIZE lower to begin with. I'd expect to have
> to make a matching change to make vm_end PAGE_SIZE higher for the
> VM_GROWSUP areas.

That's the fault path - the very check_stack_guard_page() logic itself.

In other words, nowhere do we _explicitly_ make the stack larger by
one page, but nowhere do we explicitly size the stack in the first
place! The stack grows by being populated, and every time a new page
is populated, check_stack_guard_page() will have expanded the stack
vma by one extra page.

                   Linus

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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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http://wiki.parisc-linux.org can't be reached.

Dave
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Le 4 sept. 10 =E0 01:43, John David Anglin a =E9crit :

> http://wiki.parisc-linux.org can't be reached.


Yes, sorry I forgot to send a notice to the m-l: today is the annual =20
High Voltage check-up @ESIEE. It will be brought back online in a few =20
hours, hopefully.

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From: Christian Dietrich <qy03fugy@stud.informatik.uni-erlangen.de>
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The CONFIG_PA20 ifdef isn't necessary at this point, because it is
checked in an outer ifdef level already and has no effect here.

Signed-off-by: Christian Dietrich <qy03fugy@stud.informatik.uni-erlangen.de>
---
 arch/parisc/kernel/unaligned.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index 92d977b..234e368 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -619,15 +619,12 @@ void handle_unaligned(struct pt_regs *regs)
 		flop=1;
 		ret = emulate_std(regs, R2(regs->iir),1);
 		break;
-
-#ifdef CONFIG_PA20
 	case OPCODE_LDD_L:
 		ret = emulate_ldd(regs, R2(regs->iir),0);
 		break;
 	case OPCODE_STD_L:
 		ret = emulate_std(regs, R2(regs->iir),0);
 		break;
-#endif
 	}
 #endif
 	switch (regs->iir & OPCODE3_MASK)
-- 
1.7.0.4


From - Thu Nov 08 21:06:16 2018
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From: Thomas Gleixner <tglx@linutronix.de>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
	__do_IRQ() code
Date: Wed, 08 Sep 2010 18:14:14 -0000
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <peterz@infradead.org>,
	Christoph Hellwig <hch@infradead.org>,
	linux-alpha@vger.kernel.org, linux-cris-kernel@axis.com,
	Haavard Skinnemoen <hskinnemoen@atmel.com>,
	Tony Luck <tony.luck@intel.com>, linux-ia64@vger.kernel.org,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Hirokazu Takata <takata@linux-m32r.org>,
	Greg Ungerer <gerg@uclinux.org>, Jeff Dike <jdike@addtoit.com>,
	linux-parisc@vger.kernel.org, Chris Zankel <chris@zankel.net>,
	linux-arch@vger.kernel.org
To: LKML <linux-kernel@vger.kernel.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/3071>

__do_IRQ() has been deprecated after a two years migration phase in
commit 0e57aa1. Since then another 18 month have gone by.

So here's the status three and a half years after the flow based
infrastructure was merged:

 The following architectures are fully converted to the new flow
 handler code:

  arm, avr32, blackfin, frv, microblaze, mips, mn10300, powerpc, score, sh,
  sparc 64bit, tile, x86, xtensa

  (avr32 and xtensa should set CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
  though)

 The following architectures are not using the generic interrupt
 infrastructure at all and are therefor unaffected:

  s390, m68k, sparc 32bit

 The following architectures are still using __do_IRQ():

  alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um

So now the question arises what to do with __do_IRQ().

Removing it would be the right thing, but that'll break 8 archs, so
it's probably not considered a good idea, though for most of them the
conversion should be reasonably trivial.

I'm happy to move that code into kernel/irq/cruft.c forever if there
is no way to get the remaining users converted in the forseeable
future. It looks like they can cope with the annoying build warning
nicely.

Either that or moving everything what breaks into staging/arch/* and
hand it over to GregKH :)

Thoughts ?

Not-Signed-off-by-yet: Thomas Gleixner <tglx@linutronix.de>

---
 Documentation/DocBook/genericirq.tmpl      |   29 -------
 Documentation/feature-removal-schedule.txt |    8 --
 include/linux/irq.h                        |   20 -----
 kernel/irq/handle.c                        |  111 -----------------------------
 4 files changed, 2 insertions(+), 166 deletions(-)

Index: linux-2.6/Documentation/DocBook/genericirq.tmpl
===================================================================
--- linux-2.6.orig/Documentation/DocBook/genericirq.tmpl
+++ linux-2.6/Documentation/DocBook/genericirq.tmpl
@@ -147,13 +147,6 @@
 	use a generic irq-flow implementation for 'level type' interrupts
 	and add a (sub)architecture specific 'edge type' implementation.
 	</para>
-	<para>
-	To make the transition to the new model easier and prevent the
-	breakage of existing implementations, the __do_IRQ() super-handler
-	is still available. This leads to a kind of duality for the time
-	being. Over time the new model should be used in more and more
-	architectures, as it enables smaller and cleaner IRQ subsystems.
-	</para>
   </chapter>
   <chapter id="bugs">
     <title>Known Bugs And Assumptions</title>
@@ -402,28 +395,6 @@ desc->chip->end();
     </sect1>
   </chapter>
 
-  <chapter id="doirq">
-     <title>__do_IRQ entry point</title>
-     <para>
- 	The original implementation __do_IRQ() is an alternative entry
-	point for all types of interrupts.
-     </para>
-     <para>
-	This handler turned out to be not suitable for all
-	interrupt hardware and was therefore reimplemented with split
-	functionality for egde/level/simple/percpu interrupts. This is not
-	only a functional optimization. It also shortens code paths for
-	interrupts.
-      </para>
-      <para>
-	To make use of the split implementation, replace the call to
-	__do_IRQ by a call to desc->handle_irq() and associate
-        the appropriate handler function to desc->handle_irq().
-	In most cases the generic handler implementations should
-	be sufficient.
-     </para>
-  </chapter>
-
   <chapter id="locking">
      <title>Locking on SMP</title>
      <para>
Index: linux-2.6/Documentation/feature-removal-schedule.txt
===================================================================
--- linux-2.6.orig/Documentation/feature-removal-schedule.txt
+++ linux-2.6/Documentation/feature-removal-schedule.txt
@@ -315,14 +315,6 @@ Who:	Dave Jones <davej@redhat.com>, Matt
 
 -----------------------------
 
-What:	__do_IRQ all in one fits nothing interrupt handler
-When:	2.6.32
-Why:	__do_IRQ was kept for easy migration to the type flow handlers.
-	More than two years of migration time is enough.
-Who:	Thomas Gleixner <tglx@linutronix.de>
-
------------------------------
-
 What:	fakephp and associated sysfs files in /sys/bus/pci/slots/
 When:	2011
 Why:	In 2.6.27, the semantics of /sys/bus/pci/slots was redefined to
Index: linux-2.6/include/linux/irq.h
===================================================================
--- linux-2.6.orig/include/linux/irq.h
+++ linux-2.6/include/linux/irq.h
@@ -150,7 +150,7 @@ struct irq_2_iommu;
  * @timer_rand_state:	pointer to timer rand state struct
  * @kstat_irqs:		irq stats per cpu
  * @irq_2_iommu:	iommu with this irq
- * @handle_irq:		highlevel irq-events handler [if NULL, __do_IRQ()]
+ * @handle_irq:		highlevel irq-events handler
  * @chip:		low level interrupt hardware access
  * @msi_desc:		MSI descriptor
  * @handler_data:	per-IRQ data for the irq_chip methods
@@ -294,28 +294,12 @@ extern void handle_bad_irq(unsigned int 
 extern void handle_nested_irq(unsigned int irq);
 
 /*
- * Monolithic do_IRQ implementation.
- */
-#ifndef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
-extern unsigned int __do_IRQ(unsigned int irq);
-#endif
-
-/*
  * Architectures call this to let the generic IRQ layer
- * handle an interrupt. If the descriptor is attached to an
- * irqchip-style controller then we call the ->handle_irq() handler,
- * and it calls __do_IRQ() if it's attached to an irqtype-style controller.
+ * handle an interrupt.
  */
 static inline void generic_handle_irq_desc(unsigned int irq, struct irq_desc *desc)
 {
-#ifdef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
 	desc->handle_irq(irq, desc);
-#else
-	if (likely(desc->handle_irq))
-		desc->handle_irq(irq, desc);
-	else
-		__do_IRQ(irq);
-#endif
 }
 
 static inline void generic_handle_irq(unsigned int irq)
Index: linux-2.6/kernel/irq/handle.c
===================================================================
--- linux-2.6.orig/kernel/irq/handle.c
+++ linux-2.6/kernel/irq/handle.c
@@ -426,117 +426,6 @@ irqreturn_t handle_IRQ_event(unsigned in
 	return retval;
 }
 
-#ifndef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
-
-#ifdef CONFIG_ENABLE_WARN_DEPRECATED
-# warning __do_IRQ is deprecated. Please convert to proper flow handlers
-#endif
-
-/**
- * __do_IRQ - original all in one highlevel IRQ handler
- * @irq:	the interrupt number
- *
- * __do_IRQ handles all normal device IRQ's (the special
- * SMP cross-CPU interrupts have their own specific
- * handlers).
- *
- * This is the original x86 implementation which is used for every
- * interrupt type.
- */
-unsigned int __do_IRQ(unsigned int irq)
-{
-	struct irq_desc *desc = irq_to_desc(irq);
-	struct irqaction *action;
-	unsigned int status;
-
-	kstat_incr_irqs_this_cpu(irq, desc);
-
-	if (CHECK_IRQ_PER_CPU(desc->status)) {
-		irqreturn_t action_ret;
-
-		/*
-		 * No locking required for CPU-local interrupts:
-		 */
-		if (desc->chip->ack)
-			desc->chip->ack(irq);
-		if (likely(!(desc->status & IRQ_DISABLED))) {
-			action_ret = handle_IRQ_event(irq, desc->action);
-			if (!noirqdebug)
-				note_interrupt(irq, desc, action_ret);
-		}
-		desc->chip->end(irq);
-		return 1;
-	}
-
-	raw_spin_lock(&desc->lock);
-	if (desc->chip->ack)
-		desc->chip->ack(irq);
-	/*
-	 * REPLAY is when Linux resends an IRQ that was dropped earlier
-	 * WAITING is used by probe to mark irqs that are being tested
-	 */
-	status = desc->status & ~(IRQ_REPLAY | IRQ_WAITING);
-	status |= IRQ_PENDING; /* we _want_ to handle it */
-
-	/*
-	 * If the IRQ is disabled for whatever reason, we cannot
-	 * use the action we have.
-	 */
-	action = NULL;
-	if (likely(!(status & (IRQ_DISABLED | IRQ_INPROGRESS)))) {
-		action = desc->action;
-		status &= ~IRQ_PENDING; /* we commit to handling */
-		status |= IRQ_INPROGRESS; /* we are handling it */
-	}
-	desc->status = status;
-
-	/*
-	 * If there is no IRQ handler or it was disabled, exit early.
-	 * Since we set PENDING, if another processor is handling
-	 * a different instance of this same irq, the other processor
-	 * will take care of it.
-	 */
-	if (unlikely(!action))
-		goto out;
-
-	/*
-	 * Edge triggered interrupts need to remember
-	 * pending events.
-	 * This applies to any hw interrupts that allow a second
-	 * instance of the same irq to arrive while we are in do_IRQ
-	 * or in the handler. But the code here only handles the _second_
-	 * instance of the irq, not the third or fourth. So it is mostly
-	 * useful for irq hardware that does not mask cleanly in an
-	 * SMP environment.
-	 */
-	for (;;) {
-		irqreturn_t action_ret;
-
-		raw_spin_unlock(&desc->lock);
-
-		action_ret = handle_IRQ_event(irq, action);
-		if (!noirqdebug)
-			note_interrupt(irq, desc, action_ret);
-
-		raw_spin_lock(&desc->lock);
-		if (likely(!(desc->status & IRQ_PENDING)))
-			break;
-		desc->status &= ~IRQ_PENDING;
-	}
-	desc->status &= ~IRQ_INPROGRESS;
-
-out:
-	/*
-	 * The ->end() handler has to deal with interrupts which got
-	 * disabled while the handler was running.
-	 */
-	desc->chip->end(irq);
-	raw_spin_unlock(&desc->lock);
-
-	return 1;
-}
-#endif
-
 void early_init_irq_lock_class(void)
 {
 	struct irq_desc *desc;


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From - Thu Nov 08 21:06:16 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.parisc
Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
 __do_IRQ() code
Date: Wed, 08 Sep 2010 13:51:59 -0500
Lines: 52
Approved: news@gmane.org
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Cc: LKML <linux-kernel@vger.kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <peterz@infradead.org>,
	Christoph Hellwig <hch@infradead.org>,
	linux-alpha@vger.kernel.org, linux-cris-kernel@axis.com,
	Haavard Skinnemoen <hskinnemoen@atmel.com>,
	Tony Luck <tony.luck@intel.com>, linux-ia64@vger.kernel.org,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Hirokazu Takata <takata@linux-m32r.org>,
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	linux-arch@vger.kernel.org
To: Thomas Gleixner <tglx@linutronix.de>
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On Wed, 2010-09-08 at 18:14 +0000, Thomas Gleixner wrote:
> plain text document attachment (genirq-troll-patch.patch)
> __do_IRQ() has been deprecated after a two years migration phase in
> commit 0e57aa1. Since then another 18 month have gone by.
> 
> So here's the status three and a half years after the flow based
> infrastructure was merged:
> 
>  The following architectures are fully converted to the new flow
>  handler code:
> 
>   arm, avr32, blackfin, frv, microblaze, mips, mn10300, powerpc, score, sh,
>   sparc 64bit, tile, x86, xtensa
> 
>   (avr32 and xtensa should set CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
>   though)
> 
>  The following architectures are not using the generic interrupt
>  infrastructure at all and are therefor unaffected:
> 
>   s390, m68k, sparc 32bit
> 
>  The following architectures are still using __do_IRQ():
> 
>   alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um
> 
> So now the question arises what to do with __do_IRQ().
> 
> Removing it would be the right thing, but that'll break 8 archs, so
> it's probably not considered a good idea, though for most of them the
> conversion should be reasonably trivial.
> 
> I'm happy to move that code into kernel/irq/cruft.c forever if there
> is no way to get the remaining users converted in the forseeable
> future. It looks like they can cope with the annoying build warning
> nicely.

Well, if you're going to deprecate something that 8 architectures rely
on, it would be nice to tell people ... or even just linux-arch ... most
of us do read that.  I've actually never noticed the warning the commit
activated in any of my parisc compiles for some reason.

> Either that or moving everything what breaks into staging/arch/* and
> hand it over to GregKH :)
> 
> Thoughts ?

We could move x86 into staging while it tries out the replacement ...

James



From - Thu Nov 08 21:06:16 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.cross-arch
Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
 __do_IRQ() code
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Cc: LKML <linux-kernel@vger.kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <peterz@infradead.org>,
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	linux-alpha@vger.kernel.org, linux-cris-kernel@axis.com,
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	Tony Luck <tony.luck@intel.com>, linux-ia64@vger.kernel.org,
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To: Thomas Gleixner <tglx@linutronix.de>
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On Wed, Sep 08, 2010 at 06:14:14PM -0000, Thomas Gleixner wrote:
>  The following architectures are still using __do_IRQ():
> 
>   alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um
> 
> So now the question arises what to do with __do_IRQ().
> 

Thanks Thomas for the reminder, I'll poke at fixing parisc this week,
and maybe try to fix ia64 and alpha too as penance for forgetting about
this for so long.

--Kyle
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Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
 __do_IRQ() code
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On Wed, 8 Sep 2010, James Bottomley wrote:
> On Wed, 2010-09-08 at 18:14 +0000, Thomas Gleixner wrote:
> > plain text document attachment (genirq-troll-patch.patch)
> > __do_IRQ() has been deprecated after a two years migration phase in
> > commit 0e57aa1. Since then another 18 month have gone by.
> > 
> > So here's the status three and a half years after the flow based
> > infrastructure was merged:
> > 
> >  The following architectures are fully converted to the new flow
> >  handler code:
> > 
> >   arm, avr32, blackfin, frv, microblaze, mips, mn10300, powerpc, score, sh,
> >   sparc 64bit, tile, x86, xtensa
> > 
> >   (avr32 and xtensa should set CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
> >   though)
> > 
> >  The following architectures are not using the generic interrupt
> >  infrastructure at all and are therefor unaffected:
> > 
> >   s390, m68k, sparc 32bit
> > 
> >  The following architectures are still using __do_IRQ():
> > 
> >   alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um
> > 
> > So now the question arises what to do with __do_IRQ().
> > 
> > Removing it would be the right thing, but that'll break 8 archs, so
> > it's probably not considered a good idea, though for most of them the
> > conversion should be reasonably trivial.
> > 
> > I'm happy to move that code into kernel/irq/cruft.c forever if there
> > is no way to get the remaining users converted in the forseeable
> > future. It looks like they can cope with the annoying build warning
> > nicely.
> 
> Well, if you're going to deprecate something that 8 architectures rely
> on, it would be nice to tell people ... or even just linux-arch ... most

It's been told people. The deprecation patch was on LKMl (I don't
remember whether I sent it to linux-arch), but there were a bunch of
related patches to clean out the old irq related cruft which were sent
to linux-arch and also hit the parisc tree. There is an entry in
feature-removal-schedule.txt for 18 month now.

> of us do read that.  I've actually never noticed the warning the commit
> activated in any of my parisc compiles for some reason.

CONFIG_ENABLE_WARN_DEPRECATED=y perhaps ?

I'm really tired of your whining when you did not get a personalized
taylored to your needs info.

14 architectures got converted and some maintainers sent out mail to
their users 18 month ago right after the deprecation patch was sent
(www.linux-mips.org/archives/linux-mips/2009-03/msg00068.html), there
were reviews of new architecture code on linux-arch where this was
pointed out, so don't tell me that there was not enough information
about this.

> > Either that or moving everything what breaks into staging/arch/* and
> > hand it over to GregKH :)
> > 
> > Thoughts ?
> 
> We could move x86 into staging while it tries out the replacement ...

The replacement of what? 

Thanks,

	tglx

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Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
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On Wed, Sep 8, 2010 at 14:51, James Bottomley wrote:
> On Wed, 2010-09-08 at 18:14 +0000, Thomas Gleixner wrote:
>> plain text document attachment (genirq-troll-patch.patch)
>> __do_IRQ() has been deprecated after a two years migration phase in
>> commit 0e57aa1. Since then another 18 month have gone by.
>>
>> So here's the status three and a half years after the flow based
>> infrastructure was merged:
>>
>> =C2=A0The following architectures are still using __do_IRQ():
>>
>> =C2=A0 alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um
>>
>> So now the question arises what to do with __do_IRQ().
>>
>> Removing it would be the right thing, but that'll break 8 archs, so
>> it's probably not considered a good idea, though for most of them th=
e
>> conversion should be reasonably trivial.
>>
>> I'm happy to move that code into kernel/irq/cruft.c forever if there
>> is no way to get the remaining users converted in the forseeable
>> future. It looks like they can cope with the annoying build warning
>> nicely.
>
> Well, if you're going to deprecate something that 8 architectures rel=
y
> on, it would be nice to tell people ... or even just linux-arch ... m=
ost
> of us do read that. =C2=A0I've actually never noticed the warning the=
 commit
> activated in any of my parisc compiles for some reason.

the only reason Blackfin was converted quickly is because the code
issues a warning (that has been there for a long time):
# warning __do_IRQ is deprecated. Please convert to proper flow handler=
s

so i guess you're saying that you disable the "ENABLE_WARN_DEPRECATED"
option ?  or you dont pay attention to warnings when compiling kernels
?
-mike
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From - Thu Nov 08 21:06:16 2018
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Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
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On Wed, 2010-09-08 at 21:34 +0200, Thomas Gleixner wrote:
> On Wed, 8 Sep 2010, James Bottomley wrote:
> > On Wed, 2010-09-08 at 18:14 +0000, Thomas Gleixner wrote:
> > > plain text document attachment (genirq-troll-patch.patch)
> > > __do_IRQ() has been deprecated after a two years migration phase in
> > > commit 0e57aa1. Since then another 18 month have gone by.
> > > 
> > > So here's the status three and a half years after the flow based
> > > infrastructure was merged:
> > > 
> > >  The following architectures are fully converted to the new flow
> > >  handler code:
> > > 
> > >   arm, avr32, blackfin, frv, microblaze, mips, mn10300, powerpc, score, sh,
> > >   sparc 64bit, tile, x86, xtensa
> > > 
> > >   (avr32 and xtensa should set CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
> > >   though)
> > > 
> > >  The following architectures are not using the generic interrupt
> > >  infrastructure at all and are therefor unaffected:
> > > 
> > >   s390, m68k, sparc 32bit
> > > 
> > >  The following architectures are still using __do_IRQ():
> > > 
> > >   alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um
> > > 
> > > So now the question arises what to do with __do_IRQ().
> > > 
> > > Removing it would be the right thing, but that'll break 8 archs, so
> > > it's probably not considered a good idea, though for most of them the
> > > conversion should be reasonably trivial.
> > > 
> > > I'm happy to move that code into kernel/irq/cruft.c forever if there
> > > is no way to get the remaining users converted in the forseeable
> > > future. It looks like they can cope with the annoying build warning
> > > nicely.
> > 
> > Well, if you're going to deprecate something that 8 architectures rely
> > on, it would be nice to tell people ... or even just linux-arch ... most
> 
> It's been told people. The deprecation patch was on LKMl (I don't
> remember whether I sent it to linux-arch),

You didn't ... I checked.

>  but there were a bunch of
> related patches to clean out the old irq related cruft which were sent
> to linux-arch and also hit the parisc tree. There is an entry in
> feature-removal-schedule.txt for 18 month now.
> 
> > of us do read that.  I've actually never noticed the warning the commit
> > activated in any of my parisc compiles for some reason.
> 
> CONFIG_ENABLE_WARN_DEPRECATED=y perhaps ?
>
> I'm really tired of your whining when you did not get a personalized
> taylored to your needs info.

So you send out deliberate flame bait and then suffer humour failure at
an ironic reply?

> 14 architectures got converted and some maintainers sent out mail to
> their users 18 month ago right after the deprecation patch was sent
> (www.linux-mips.org/archives/linux-mips/2009-03/msg00068.html), there
> were reviews of new architecture code on linux-arch where this was
> pointed out, so don't tell me that there was not enough information
> about this.

Well, we could go round in circles over the cryptic nature of this
indirection for ages, but I've got a wonderful target flame war to get
back to, so why don't we just cut to the chase:

The missing information is what actually needs to be done.  Fortunately,
the documentation is here:

Documentation/DocBook/genericirq.tmpl

It gives a nice overview and describes what's needed.  Basically you're
replacing generic __do_IRQ() with an internal implementation tuned to
specific handler types using the either generic library of handler
functions in kernel/irq or something more hand crafted and chip
specific.
.
James


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From: "Luck, Tony" <tony.luck@intel.com>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: RE: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
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Cc: LKML <linux-kernel@vger.kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>,
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To: Kyle McMartin <kyle@mcmartin.ca>,
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> Thanks Thomas for the reminder, I'll poke at fixing parisc this week,
> and maybe try to fix ia64 and alpha too as penance for forgetting about
> this for so long.

I'll be happy to see ia64 converted ... I did look at it once a long
time ago, but couldn't work out what I had to do to replace do_IRQ.
If Kyle figures out the patch, I'll test.  If not, then some pointers
would be helpful.

-Tony
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From: Nikitas Angelinas <nikitasangelinas@gmail.com>
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Subject: [PATCH 2/8] arch/parisc/include/asm: use ARRAY_SIZE macro in mmzone.h
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Replace sizeof(pfnnid_map) / sizeof(pfnnid_map[0]) with
ARRAY_SIZE(pfnnid_map) in mmzone.h

Signed-off-by: Nikitas Angelinas <nikitasangelinas@gmail.com>
---
 arch/parisc/include/asm/mmzone.h |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index 9608d2c..85b23b6 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -3,6 +3,8 @@
 
 #ifdef CONFIG_DISCONTIGMEM
 
+#include <linux/kernel.h>
+
 #define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
 extern int npmem_ranges;
 
@@ -51,7 +53,7 @@ static inline int pfn_to_nid(unsigned long pfn)
 		return 0;
 
 	i = pfn >> PFNNID_SHIFT;
-	BUG_ON(i >= sizeof(pfnnid_map) / sizeof(pfnnid_map[0]));
+	BUG_ON(i >= ARRAY_SIZE(pfnnid_map));
 	r = pfnnid_map[i];
 	BUG_ON(r == 0xff);
 
-- 
1.7.2.3


From - Thu Nov 08 21:06:16 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 2/8] arch/parisc/include/asm: use ARRAY_SIZE macro in
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On Wed, Sep 08, 2010 at 10:11:13PM +0100, Nikitas Angelinas wrote:
> Replace sizeof(pfnnid_map) / sizeof(pfnnid_map[0]) with
> ARRAY_SIZE(pfnnid_map) in mmzone.h
> 

Thanks. Let me think about this, I don't really like the tangled web of
include dependencies this results in...

regards, Kyle

> Signed-off-by: Nikitas Angelinas <nikitasangelinas@gmail.com>
> ---
>  arch/parisc/include/asm/mmzone.h |    4 +++-
>  1 files changed, 3 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
> index 9608d2c..85b23b6 100644
> --- a/arch/parisc/include/asm/mmzone.h
> +++ b/arch/parisc/include/asm/mmzone.h
> @@ -3,6 +3,8 @@
>  
>  #ifdef CONFIG_DISCONTIGMEM
>  
> +#include <linux/kernel.h>
> +
>  #define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
>  extern int npmem_ranges;
>  
> @@ -51,7 +53,7 @@ static inline int pfn_to_nid(unsigned long pfn)
>  		return 0;
>  
>  	i = pfn >> PFNNID_SHIFT;
> -	BUG_ON(i >= sizeof(pfnnid_map) / sizeof(pfnnid_map[0]));
> +	BUG_ON(i >= ARRAY_SIZE(pfnnid_map));
>  	r = pfnnid_map[i];
>  	BUG_ON(r == 0xff);
>  
> -- 
> 1.7.2.3
> 
> 
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 03/14] arch/parisc: Removing undead ifdef CONFIG_PA20
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Cc: Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Akinobu Mita <akinobu.mita@gmail.com>,
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On Mon, Sep 06, 2010 at 04:36:06PM +0200, Christian Dietrich wrote:
> The CONFIG_PA20 ifdef isn't necessary at this point, because it is
> checked in an outer ifdef level already and has no effect here.
> 

Looks good, applied, thanks.
-- Kyle

> Signed-off-by: Christian Dietrich <qy03fugy@stud.informatik.uni-erlangen.de>
> ---
>  arch/parisc/kernel/unaligned.c |    3 ---
>  1 files changed, 0 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
> index 92d977b..234e368 100644
> --- a/arch/parisc/kernel/unaligned.c
> +++ b/arch/parisc/kernel/unaligned.c
> @@ -619,15 +619,12 @@ void handle_unaligned(struct pt_regs *regs)
>  		flop=1;
>  		ret = emulate_std(regs, R2(regs->iir),1);
>  		break;
> -
> -#ifdef CONFIG_PA20
>  	case OPCODE_LDD_L:
>  		ret = emulate_ldd(regs, R2(regs->iir),0);
>  		break;
>  	case OPCODE_STD_L:
>  		ret = emulate_std(regs, R2(regs->iir),0);
>  		break;
> -#endif
>  	}
>  #endif
>  	switch (regs->iir & OPCODE3_MASK)
> -- 
> 1.7.0.4
> 
> 
--
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From - Thu Nov 08 21:06:16 2018
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From: Thomas Gleixner <tglx@linutronix.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.parisc
Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
 __do_IRQ() code
Date: Wed, 8 Sep 2010 23:35:05 +0200 (CEST)
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Approved: news@gmane.org
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References: <20100908152036.643594727@linutronix.de>  <1283971919.11763.35.camel@mulgrave.site>  <alpine.LFD.2.00.1009082056210.2477@localhost6.localdomain6> <1283978124.11763.80.camel@mulgrave.site>
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Cc: LKML <linux-kernel@vger.kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <peterz@infradead.org>,
	Christoph Hellwig <hch@infradead.org>,
	linux-alpha@vger.kernel.org, linux-cris-kernel@axis.com,
	Haavard Skinnemoen <hskinnemoen@atmel.com>,
	Tony Luck <tony.luck@intel.com>, linux-ia64@vger.kernel.org,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
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	linux-parisc@vger.kernel.org, Chris Zankel <chris@zankel.net>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/3081>

On Wed, 8 Sep 2010, James Bottomley wrote:
> On Wed, 2010-09-08 at 21:34 +0200, Thomas Gleixner wrote:
> > On Wed, 8 Sep 2010, James Bottomley wrote:
> > > On Wed, 2010-09-08 at 18:14 +0000, Thomas Gleixner wrote:
> > > > plain text document attachment (genirq-troll-patch.patch)
> > > > __do_IRQ() has been deprecated after a two years migration phase in
> > > > commit 0e57aa1. Since then another 18 month have gone by.
> > > > 
> > > > So here's the status three and a half years after the flow based
> > > > infrastructure was merged:
> > > > 
> > > >  The following architectures are fully converted to the new flow
> > > >  handler code:
> > > > 
> > > >   arm, avr32, blackfin, frv, microblaze, mips, mn10300, powerpc, score, sh,
> > > >   sparc 64bit, tile, x86, xtensa
> > > > 
> > > >   (avr32 and xtensa should set CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
> > > >   though)
> > > > 
> > > >  The following architectures are not using the generic interrupt
> > > >  infrastructure at all and are therefor unaffected:
> > > > 
> > > >   s390, m68k, sparc 32bit
> > > > 
> > > >  The following architectures are still using __do_IRQ():
> > > > 
> > > >   alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um
> > > > 
> > > > So now the question arises what to do with __do_IRQ().
> > > > 
> > > > Removing it would be the right thing, but that'll break 8 archs, so
> > > > it's probably not considered a good idea, though for most of them the
> > > > conversion should be reasonably trivial.
> > > > 
> > > > I'm happy to move that code into kernel/irq/cruft.c forever if there
> > > > is no way to get the remaining users converted in the forseeable
> > > > future. It looks like they can cope with the annoying build warning
> > > > nicely.
> > > 
> > > Well, if you're going to deprecate something that 8 architectures rely
> > > on, it would be nice to tell people ... or even just linux-arch ... most
> > 
> > It's been told people. The deprecation patch was on LKMl (I don't
> > remember whether I sent it to linux-arch),
> 
> You didn't ... I checked.
> 
> >  but there were a bunch of
> > related patches to clean out the old irq related cruft which were sent
> > to linux-arch and also hit the parisc tree. There is an entry in
> > feature-removal-schedule.txt for 18 month now.
> > 
> > > of us do read that.  I've actually never noticed the warning the commit
> > > activated in any of my parisc compiles for some reason.
> > 
> > CONFIG_ENABLE_WARN_DEPRECATED=y perhaps ?
> >
> > I'm really tired of your whining when you did not get a personalized
> > taylored to your needs info.
> 
> So you send out deliberate flame bait and then suffer humour failure at
> an ironic reply?

Darn, I missed the ironic tag.

I added you to the "beware-of-british-irony" filter of my .procmailrc
to avoid that in the future.

Thanks,

	tglx

From - Thu Nov 08 21:06:16 2018
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From: Mikael Starvik <mikael.starvik@axis.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.cross-arch
Subject: RE: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
	__do_IRQ() code
Date: Thu, 9 Sep 2010 09:10:54 +0200
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Approved: news@gmane.org
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
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To: Thomas Gleixner <tglx@linutronix.de>,
	LKML <linux-kernel@vger.kernel.org>,
	Jesper Nilsson <jespern@axis.com>
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Thread-Topic: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
	__do_IRQ() code
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/3082>

>From CRIS perspective it is perfectly ok to remove __do_IRQ. At the latest when we notice that our build breaks we will fix it and preferably before that.

/Mikael

-----Original Message-----
From: Thomas Gleixner [mailto:tglx@linutronix.de] 
Sent: den 8 september 2010 20:14
To: LKML
Cc: Linus Torvalds; Andrew Morton; Ingo Molnar; Peter Zijlstra; Christoph Hellwig; linux-alpha@vger.kernel.org; linux-cris-kernel; Haavard Skinnemoen; Tony Luck; linux-ia64@vger.kernel.org; Yoshinori Sato; Hirokazu Takata; Greg Ungerer; Jeff Dike; linux-parisc@vger.kernel.org; Chris Zankel; linux-arch@vger.kernel.org
Subject: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing __do_IRQ() code

__do_IRQ() has been deprecated after a two years migration phase in
commit 0e57aa1. Since then another 18 month have gone by.

So here's the status three and a half years after the flow based
infrastructure was merged:

 The following architectures are fully converted to the new flow
 handler code:

  arm, avr32, blackfin, frv, microblaze, mips, mn10300, powerpc, score, sh,
  sparc 64bit, tile, x86, xtensa

  (avr32 and xtensa should set CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
  though)

 The following architectures are not using the generic interrupt
 infrastructure at all and are therefor unaffected:

  s390, m68k, sparc 32bit

 The following architectures are still using __do_IRQ():

  alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um

So now the question arises what to do with __do_IRQ().

Removing it would be the right thing, but that'll break 8 archs, so
it's probably not considered a good idea, though for most of them the
conversion should be reasonably trivial.

I'm happy to move that code into kernel/irq/cruft.c forever if there
is no way to get the remaining users converted in the forseeable
future. It looks like they can cope with the annoying build warning
nicely.

Either that or moving everything what breaks into staging/arch/* and
hand it over to GregKH :)

Thoughts ?

Not-Signed-off-by-yet: Thomas Gleixner <tglx@linutronix.de>

---
 Documentation/DocBook/genericirq.tmpl      |   29 -------
 Documentation/feature-removal-schedule.txt |    8 --
 include/linux/irq.h                        |   20 -----
 kernel/irq/handle.c                        |  111 -----------------------------
 4 files changed, 2 insertions(+), 166 deletions(-)

Index: linux-2.6/Documentation/DocBook/genericirq.tmpl
===================================================================
--- linux-2.6.orig/Documentation/DocBook/genericirq.tmpl
+++ linux-2.6/Documentation/DocBook/genericirq.tmpl
@@ -147,13 +147,6 @@
 	use a generic irq-flow implementation for 'level type' interrupts
 	and add a (sub)architecture specific 'edge type' implementation.
 	</para>
-	<para>
-	To make the transition to the new model easier and prevent the
-	breakage of existing implementations, the __do_IRQ() super-handler
-	is still available. This leads to a kind of duality for the time
-	being. Over time the new model should be used in more and more
-	architectures, as it enables smaller and cleaner IRQ subsystems.
-	</para>
   </chapter>
   <chapter id="bugs">
     <title>Known Bugs And Assumptions</title>
@@ -402,28 +395,6 @@ desc->chip->end();
     </sect1>
   </chapter>
 
-  <chapter id="doirq">
-     <title>__do_IRQ entry point</title>
-     <para>
- 	The original implementation __do_IRQ() is an alternative entry
-	point for all types of interrupts.
-     </para>
-     <para>
-	This handler turned out to be not suitable for all
-	interrupt hardware and was therefore reimplemented with split
-	functionality for egde/level/simple/percpu interrupts. This is not
-	only a functional optimization. It also shortens code paths for
-	interrupts.
-      </para>
-      <para>
-	To make use of the split implementation, replace the call to
-	__do_IRQ by a call to desc->handle_irq() and associate
-        the appropriate handler function to desc->handle_irq().
-	In most cases the generic handler implementations should
-	be sufficient.
-     </para>
-  </chapter>
-
   <chapter id="locking">
      <title>Locking on SMP</title>
      <para>
Index: linux-2.6/Documentation/feature-removal-schedule.txt
===================================================================
--- linux-2.6.orig/Documentation/feature-removal-schedule.txt
+++ linux-2.6/Documentation/feature-removal-schedule.txt
@@ -315,14 +315,6 @@ Who:	Dave Jones <davej@redhat.com>, Matt
 
 -----------------------------
 
-What:	__do_IRQ all in one fits nothing interrupt handler
-When:	2.6.32
-Why:	__do_IRQ was kept for easy migration to the type flow handlers.
-	More than two years of migration time is enough.
-Who:	Thomas Gleixner <tglx@linutronix.de>
-
------------------------------
-
 What:	fakephp and associated sysfs files in /sys/bus/pci/slots/
 When:	2011
 Why:	In 2.6.27, the semantics of /sys/bus/pci/slots was redefined to
Index: linux-2.6/include/linux/irq.h
===================================================================
--- linux-2.6.orig/include/linux/irq.h
+++ linux-2.6/include/linux/irq.h
@@ -150,7 +150,7 @@ struct irq_2_iommu;
  * @timer_rand_state:	pointer to timer rand state struct
  * @kstat_irqs:		irq stats per cpu
  * @irq_2_iommu:	iommu with this irq
- * @handle_irq:		highlevel irq-events handler [if NULL, __do_IRQ()]
+ * @handle_irq:		highlevel irq-events handler
  * @chip:		low level interrupt hardware access
  * @msi_desc:		MSI descriptor
  * @handler_data:	per-IRQ data for the irq_chip methods
@@ -294,28 +294,12 @@ extern void handle_bad_irq(unsigned int 
 extern void handle_nested_irq(unsigned int irq);
 
 /*
- * Monolithic do_IRQ implementation.
- */
-#ifndef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
-extern unsigned int __do_IRQ(unsigned int irq);
-#endif
-
-/*
  * Architectures call this to let the generic IRQ layer
- * handle an interrupt. If the descriptor is attached to an
- * irqchip-style controller then we call the ->handle_irq() handler,
- * and it calls __do_IRQ() if it's attached to an irqtype-style controller.
+ * handle an interrupt.
  */
 static inline void generic_handle_irq_desc(unsigned int irq, struct irq_desc *desc)
 {
-#ifdef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
 	desc->handle_irq(irq, desc);
-#else
-	if (likely(desc->handle_irq))
-		desc->handle_irq(irq, desc);
-	else
-		__do_IRQ(irq);
-#endif
 }
 
 static inline void generic_handle_irq(unsigned int irq)
Index: linux-2.6/kernel/irq/handle.c
===================================================================
--- linux-2.6.orig/kernel/irq/handle.c
+++ linux-2.6/kernel/irq/handle.c
@@ -426,117 +426,6 @@ irqreturn_t handle_IRQ_event(unsigned in
 	return retval;
 }
 
-#ifndef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
-
-#ifdef CONFIG_ENABLE_WARN_DEPRECATED
-# warning __do_IRQ is deprecated. Please convert to proper flow handlers
-#endif
-
-/**
- * __do_IRQ - original all in one highlevel IRQ handler
- * @irq:	the interrupt number
- *
- * __do_IRQ handles all normal device IRQ's (the special
- * SMP cross-CPU interrupts have their own specific
- * handlers).
- *
- * This is the original x86 implementation which is used for every
- * interrupt type.
- */
-unsigned int __do_IRQ(unsigned int irq)
-{
-	struct irq_desc *desc = irq_to_desc(irq);
-	struct irqaction *action;
-	unsigned int status;
-
-	kstat_incr_irqs_this_cpu(irq, desc);
-
-	if (CHECK_IRQ_PER_CPU(desc->status)) {
-		irqreturn_t action_ret;
-
-		/*
-		 * No locking required for CPU-local interrupts:
-		 */
-		if (desc->chip->ack)
-			desc->chip->ack(irq);
-		if (likely(!(desc->status & IRQ_DISABLED))) {
-			action_ret = handle_IRQ_event(irq, desc->action);
-			if (!noirqdebug)
-				note_interrupt(irq, desc, action_ret);
-		}
-		desc->chip->end(irq);
-		return 1;
-	}
-
-	raw_spin_lock(&desc->lock);
-	if (desc->chip->ack)
-		desc->chip->ack(irq);
-	/*
-	 * REPLAY is when Linux resends an IRQ that was dropped earlier
-	 * WAITING is used by probe to mark irqs that are being tested
-	 */
-	status = desc->status & ~(IRQ_REPLAY | IRQ_WAITING);
-	status |= IRQ_PENDING; /* we _want_ to handle it */
-
-	/*
-	 * If the IRQ is disabled for whatever reason, we cannot
-	 * use the action we have.
-	 */
-	action = NULL;
-	if (likely(!(status & (IRQ_DISABLED | IRQ_INPROGRESS)))) {
-		action = desc->action;
-		status &= ~IRQ_PENDING; /* we commit to handling */
-		status |= IRQ_INPROGRESS; /* we are handling it */
-	}
-	desc->status = status;
-
-	/*
-	 * If there is no IRQ handler or it was disabled, exit early.
-	 * Since we set PENDING, if another processor is handling
-	 * a different instance of this same irq, the other processor
-	 * will take care of it.
-	 */
-	if (unlikely(!action))
-		goto out;
-
-	/*
-	 * Edge triggered interrupts need to remember
-	 * pending events.
-	 * This applies to any hw interrupts that allow a second
-	 * instance of the same irq to arrive while we are in do_IRQ
-	 * or in the handler. But the code here only handles the _second_
-	 * instance of the irq, not the third or fourth. So it is mostly
-	 * useful for irq hardware that does not mask cleanly in an
-	 * SMP environment.
-	 */
-	for (;;) {
-		irqreturn_t action_ret;
-
-		raw_spin_unlock(&desc->lock);
-
-		action_ret = handle_IRQ_event(irq, action);
-		if (!noirqdebug)
-			note_interrupt(irq, desc, action_ret);
-
-		raw_spin_lock(&desc->lock);
-		if (likely(!(desc->status & IRQ_PENDING)))
-			break;
-		desc->status &= ~IRQ_PENDING;
-	}
-	desc->status &= ~IRQ_INPROGRESS;
-
-out:
-	/*
-	 * The ->end() handler has to deal with interrupts which got
-	 * disabled while the handler was running.
-	 */
-	desc->chip->end(irq);
-	raw_spin_unlock(&desc->lock);
-
-	return 1;
-}
-#endif

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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.parisc
Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
 __do_IRQ() code
Date: Thu, 9 Sep 2010 17:21:35 +1000
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Cc: LKML <linux-kernel@vger.kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <peterz@infradead.org>,
	Christoph Hellwig <hch@infradead.org>,
	linux-alpha@vger.kernel.org, linux-cris-kernel@axis.com,
	Haavard Skinnemoen <hskinnemoen@atmel.com>,
	Tony Luck <tony.luck@intel.com>, linux-ia64@vger.kernel.org,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
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--------------010606090302060609020406
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Thomas Gleixner wrote:
> __do_IRQ() has been deprecated after a two years migration phase in
> commit 0e57aa1. Since then another 18 month have gone by.
> 
> So here's the status three and a half years after the flow based
> infrastructure was merged:
> 
>  The following architectures are fully converted to the new flow
>  handler code:
> 
>   arm, avr32, blackfin, frv, microblaze, mips, mn10300, powerpc, score, sh,
>   sparc 64bit, tile, x86, xtensa
> 
>   (avr32 and xtensa should set CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
>   though)
> 
>  The following architectures are not using the generic interrupt
>  infrastructure at all and are therefor unaffected:
> 
>   s390, m68k, sparc 32bit
> 
>  The following architectures are still using __do_IRQ():
> 
>   alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um

The m68knommu arch should be easy to fix up. Here is a first pass
patch. Tested and working on 1 board so far. I need to check all
the processor types, and test a few more to be sure :-)

Regards
Greg


-- 
------------------------------------------------------------------------
Greg Ungerer  --  Principal Engineer        EMAIL:     gerg@snapgear.com
SnapGear Group, McAfee                      PHONE:       +61 7 3435 2888
8 Gardner Close                             FAX:         +61 7 3217 5323
Milton, QLD, 4064, Australia                WEB: http://www.SnapGear.com

--------------010606090302060609020406
Content-Type: text/x-patch; name="m68knommu-stop-using-__do_IRQ.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline; filename="m68knommu-stop-using-__do_IRQ.patch"

m68knommu: stop using __do_IRQ

The use of __do_IRQ is deprecated, so lets stop using it.
Generally the interrupts on the supported processors here are
level triggered, so this is strait forward to switch over to
using the standard handle_level_irq flow handler.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
---
 arch/m68knommu/Kconfig                       |    4 ++++
 arch/m68knommu/platform/5272/intc.c          |    1 +
 arch/m68knommu/platform/68328/ints.c         |    1 +
 arch/m68knommu/platform/68360/ints.c         |    1 +
 arch/m68knommu/platform/coldfire/intc-2.c    |    1 +
 arch/m68knommu/platform/coldfire/intc-simr.c |    1 +
 arch/m68knommu/platform/coldfire/intc.c      |    1 +
 7 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig
index 2609c39..fd28178 100644
--- a/arch/m68knommu/Kconfig
+++ b/arch/m68knommu/Kconfig
@@ -59,6 +59,10 @@ config GENERIC_HARDIRQS
 	bool
 	default y
 
+config GENERIC_HARDIRQS_NO__DO_IRQ
+	bool
+	default y
+
 config GENERIC_CALIBRATE_DELAY
 	bool
 	default y
diff --git a/arch/m68knommu/platform/5272/intc.c b/arch/m68knommu/platform/5272/intc.c
index 7081e0a..e9da6f1 100644
--- a/arch/m68knommu/platform/5272/intc.c
+++ b/arch/m68knommu/platform/5272/intc.c
@@ -133,6 +133,7 @@ void __init init_IRQ(void)
 		irq_desc[irq].depth = 1;
 		irq_desc[irq].chip = &intc_irq_chip;
 		intc_irq_set_type(irq, 0);
+		set_irq_handler(irq, handle_level_irq);
 	}
 }
 
diff --git a/arch/m68knommu/platform/68328/ints.c b/arch/m68knommu/platform/68328/ints.c
index b91ee85..90516ee 100644
--- a/arch/m68knommu/platform/68328/ints.c
+++ b/arch/m68knommu/platform/68328/ints.c
@@ -183,6 +183,7 @@ void __init init_IRQ(void)
 		irq_desc[i].action = NULL;
 		irq_desc[i].depth = 1;
 		irq_desc[i].chip = &intc_irq_chip;
+		set_irq_handler(irq, handle_level_irq);
 	}
 }
 
diff --git a/arch/m68knommu/platform/68360/ints.c b/arch/m68knommu/platform/68360/ints.c
index 6f22970..cdf691e 100644
--- a/arch/m68knommu/platform/68360/ints.c
+++ b/arch/m68knommu/platform/68360/ints.c
@@ -136,6 +136,7 @@ void init_IRQ(void)
 		irq_desc[i].action = NULL;
 		irq_desc[i].depth = 1;
 		irq_desc[i].chip = &intc_irq_chip;
+		set_irq_handler(irq, handle_level_irq);
 	}
 }
 
diff --git a/arch/m68knommu/platform/coldfire/intc-2.c b/arch/m68knommu/platform/coldfire/intc-2.c
index 5598c8b..6410f7e 100644
--- a/arch/m68knommu/platform/coldfire/intc-2.c
+++ b/arch/m68knommu/platform/coldfire/intc-2.c
@@ -88,6 +88,7 @@ void __init init_IRQ(void)
 		irq_desc[irq].action = NULL;
 		irq_desc[irq].depth = 1;
 		irq_desc[irq].chip = &intc_irq_chip;
+		set_irq_handler(irq, handle_level_irq);
 	}
 }
 
diff --git a/arch/m68knommu/platform/coldfire/intc-simr.c b/arch/m68knommu/platform/coldfire/intc-simr.c
index 1b01e79..7f4abb3 100644
--- a/arch/m68knommu/platform/coldfire/intc-simr.c
+++ b/arch/m68knommu/platform/coldfire/intc-simr.c
@@ -73,6 +73,7 @@ void __init init_IRQ(void)
 		irq_desc[irq].depth = 1;
 		irq_desc[irq].chip = &intc_irq_chip;
 		intc_irq_set_type(irq, 0);
+		set_irq_handler(irq, handle_level_irq);
 	}
 }
 
diff --git a/arch/m68knommu/platform/coldfire/intc.c b/arch/m68knommu/platform/coldfire/intc.c
index a4560c8..40b9e8d 100644
--- a/arch/m68knommu/platform/coldfire/intc.c
+++ b/arch/m68knommu/platform/coldfire/intc.c
@@ -148,6 +148,7 @@ void __init init_IRQ(void)
 		irq_desc[irq].depth = 1;
 		irq_desc[irq].chip = &intc_irq_chip;
 		intc_irq_set_type(irq, 0);
+		set_irq_handler(irq, handle_level_irq);
 	}
 }
 

--------------010606090302060609020406--

From - Thu Nov 08 21:06:17 2018
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X-Mozilla-Keys:                                                                                 
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
 __do_IRQ() code
Date: Thu, 9 Sep 2010 10:09:26 -0400
Lines: 142
Approved: news@gmane.org
Message-ID: <20100909140926.GH24791@bombadil.infradead.org>
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Cc: Thomas Gleixner <tglx@linutronix.de>,
	LKML <linux-kernel@vger.kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <peterz@infradead.org>,
	Christoph Hellwig <hch@infradead.org>,
	linux-alpha@vger.kernel.org, linux-cris-kernel@axis.com,
	Haavard Skinnemoen <hskinnemoen@atmel.com>,
	Tony Luck <tony.luck@intel.com>, linux-ia64@vger.kernel.org,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Hirokazu Takata <takata@linux-m32r.org>,
	Greg Ungerer <gerg@uclinux.org>, Jeff Dike <jdike@addtoit.com>,
	linux-parisc@vger.kernel.org, Chris Zankel <chris@zankel.net>,
	linux-arch@vger.kernel.org
To: Greg Ungerer <gerg@snapgear.com>
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On Thu, Sep 09, 2010 at 05:21:35PM +1000, Greg Ungerer wrote:
> The m68knommu arch should be easy to fix up. Here is a first pass
> patch. Tested and working on 1 board so far. I need to check all
> the processor types, and test a few more to be sure :-)
> 

Dunno if you noticed, Greg, but you've already had a removal patch
submitted some time ago...

Date: Wed, 16 Dec 2009 19:15:39 -0800                                                                                                                                              
From: Steven King <sfking@fdwdc.com>                                                                                                                                               
To: Greg Ungerer <gerg@snapgear.com>                                                                                                                                               
Subject: [PATCH] m68knommu: get rid of __do_IRQ and add support for
 using gpio irqs.       

(noticed this while searching for __do_IRQ related stuff in my email
last night.)

regards, Kyle

> Regards
> Greg
> 
> 
> -- 
> ------------------------------------------------------------------------
> Greg Ungerer  --  Principal Engineer        EMAIL:     gerg@snapgear.com
> SnapGear Group, McAfee                      PHONE:       +61 7 3435 2888
> 8 Gardner Close                             FAX:         +61 7 3217 5323
> Milton, QLD, 4064, Australia                WEB: http://www.SnapGear.com

> m68knommu: stop using __do_IRQ
> 
> The use of __do_IRQ is deprecated, so lets stop using it.
> Generally the interrupts on the supported processors here are
> level triggered, so this is strait forward to switch over to
> using the standard handle_level_irq flow handler.
> 
> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
> ---
>  arch/m68knommu/Kconfig                       |    4 ++++
>  arch/m68knommu/platform/5272/intc.c          |    1 +
>  arch/m68knommu/platform/68328/ints.c         |    1 +
>  arch/m68knommu/platform/68360/ints.c         |    1 +
>  arch/m68knommu/platform/coldfire/intc-2.c    |    1 +
>  arch/m68knommu/platform/coldfire/intc-simr.c |    1 +
>  arch/m68knommu/platform/coldfire/intc.c      |    1 +
>  7 files changed, 10 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig
> index 2609c39..fd28178 100644
> --- a/arch/m68knommu/Kconfig
> +++ b/arch/m68knommu/Kconfig
> @@ -59,6 +59,10 @@ config GENERIC_HARDIRQS
>  	bool
>  	default y
>  
> +config GENERIC_HARDIRQS_NO__DO_IRQ
> +	bool
> +	default y
> +
>  config GENERIC_CALIBRATE_DELAY
>  	bool
>  	default y
> diff --git a/arch/m68knommu/platform/5272/intc.c b/arch/m68knommu/platform/5272/intc.c
> index 7081e0a..e9da6f1 100644
> --- a/arch/m68knommu/platform/5272/intc.c
> +++ b/arch/m68knommu/platform/5272/intc.c
> @@ -133,6 +133,7 @@ void __init init_IRQ(void)
>  		irq_desc[irq].depth = 1;
>  		irq_desc[irq].chip = &intc_irq_chip;
>  		intc_irq_set_type(irq, 0);
> +		set_irq_handler(irq, handle_level_irq);
>  	}
>  }
>  
> diff --git a/arch/m68knommu/platform/68328/ints.c b/arch/m68knommu/platform/68328/ints.c
> index b91ee85..90516ee 100644
> --- a/arch/m68knommu/platform/68328/ints.c
> +++ b/arch/m68knommu/platform/68328/ints.c
> @@ -183,6 +183,7 @@ void __init init_IRQ(void)
>  		irq_desc[i].action = NULL;
>  		irq_desc[i].depth = 1;
>  		irq_desc[i].chip = &intc_irq_chip;
> +		set_irq_handler(irq, handle_level_irq);
>  	}
>  }
>  
> diff --git a/arch/m68knommu/platform/68360/ints.c b/arch/m68knommu/platform/68360/ints.c
> index 6f22970..cdf691e 100644
> --- a/arch/m68knommu/platform/68360/ints.c
> +++ b/arch/m68knommu/platform/68360/ints.c
> @@ -136,6 +136,7 @@ void init_IRQ(void)
>  		irq_desc[i].action = NULL;
>  		irq_desc[i].depth = 1;
>  		irq_desc[i].chip = &intc_irq_chip;
> +		set_irq_handler(irq, handle_level_irq);
>  	}
>  }
>  
> diff --git a/arch/m68knommu/platform/coldfire/intc-2.c b/arch/m68knommu/platform/coldfire/intc-2.c
> index 5598c8b..6410f7e 100644
> --- a/arch/m68knommu/platform/coldfire/intc-2.c
> +++ b/arch/m68knommu/platform/coldfire/intc-2.c
> @@ -88,6 +88,7 @@ void __init init_IRQ(void)
>  		irq_desc[irq].action = NULL;
>  		irq_desc[irq].depth = 1;
>  		irq_desc[irq].chip = &intc_irq_chip;
> +		set_irq_handler(irq, handle_level_irq);
>  	}
>  }
>  
> diff --git a/arch/m68knommu/platform/coldfire/intc-simr.c b/arch/m68knommu/platform/coldfire/intc-simr.c
> index 1b01e79..7f4abb3 100644
> --- a/arch/m68knommu/platform/coldfire/intc-simr.c
> +++ b/arch/m68knommu/platform/coldfire/intc-simr.c
> @@ -73,6 +73,7 @@ void __init init_IRQ(void)
>  		irq_desc[irq].depth = 1;
>  		irq_desc[irq].chip = &intc_irq_chip;
>  		intc_irq_set_type(irq, 0);
> +		set_irq_handler(irq, handle_level_irq);
>  	}
>  }
>  
> diff --git a/arch/m68knommu/platform/coldfire/intc.c b/arch/m68knommu/platform/coldfire/intc.c
> index a4560c8..40b9e8d 100644
> --- a/arch/m68knommu/platform/coldfire/intc.c
> +++ b/arch/m68knommu/platform/coldfire/intc.c
> @@ -148,6 +148,7 @@ void __init init_IRQ(void)
>  		irq_desc[irq].depth = 1;
>  		irq_desc[irq].chip = &intc_irq_chip;
>  		intc_irq_set_type(irq, 0);
> +		set_irq_handler(irq, handle_level_irq);
>  	}
>  }
>  

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From - Thu Nov 08 21:06:17 2018
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X-Mozilla-Keys:                                                                                 
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From: "Dialup Jon Norstog" <thursday@allidaho.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.cross-arch
Subject: RE: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing __do_IRQ() code
Date: Thu, 9 Sep 2010 07:44:36 -0600
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
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	Peter Zijlstra <peterz@infradead.org>,
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To: Mikael Starvik <mikael.starvik@axis.com>,
	Thomas Gleixner <tglx@linutronix.de>,
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	Jesper Nilsson <jespern@axis.com>
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---------- Original Message -----------
From: Mikael Starvik <mikael.starvik@axis.com>
To: Thomas Gleixner <tglx@linutronix.de>, LKML <linux-k 
>  The following architectures are still using __do_IRQ():
> 
>   alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um
> 
> So now the question arises what to do with __do_IRQ().
> 
> Removing it would be the right thing, but that'll break 8 archs, so
> it's probably not considered a good idea, though for most of them the
> conversion should be reasonably trivial.
> 
> I'm happy to move that code into kernel/irq/cruft.c forever if there
> is no way to get the remaining users converted in the forseeable
> future. It looks like they can cope with the annoying build warning
> nicely.
> 
> Either that or moving everything what breaks into staging/arch/* and
> hand it over to GregKH :)
> 
> Thoughts ?
 

To the lists:

My thought is, put something in the readme - like Jay Estabrook's note in the
current Alpha Core build.  At least so those of us who get wierd msgs during a
kernel build can know what they are all about.

TIA

jn
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH] parisc: add tty driver to PDC console
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On Fri, Jul 30, 2010 at 04:30:08PM +0200, Guy Martin wrote:
> On Tue, 15 Jun 2010 07:35:53 -0400
> Kyle McMartin <kyle@mcmartin.ca> wrote:
> 
> 
> > I figured... I'll take a look at it over the weekend. (Also, I'll see
> > if I can dig up the radeonfb hacks.)
> 
> 
> Any luck ? :)
> 
> Is it still possible to get this in 2.6.35 ?
> 

Ugh, sorry about that, I'll poke Linus about this on the weekend.

--Kyle
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.parisc
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Hi Kyle,

Kyle McMartin wrote:
> On Thu, Sep 09, 2010 at 05:21:35PM +1000, Greg Ungerer wrote:
>> The m68knommu arch should be easy to fix up. Here is a first pass
>> patch. Tested and working on 1 board so far. I need to check all
>> the processor types, and test a few more to be sure :-)
>>
> 
> Dunno if you noticed, Greg, but you've already had a removal patch
> submitted some time ago...

I had forgotten about that patch... But if you follow the email
trail I had to drop it soon after, it caused user space to lock
up. I let Steven know (in that same thread) but he never came
back with any fixes/updates.

(That patch also added support for edge triggered GPIO interrupts,
and that may well have been the source of the problems).

Thanks
Greg


> Date: Wed, 16 Dec 2009 19:15:39 -0800                                                                                                                                              
> From: Steven King <sfking@fdwdc.com>                                                                                                                                               
> To: Greg Ungerer <gerg@snapgear.com>                                                                                                                                               
> Subject: [PATCH] m68knommu: get rid of __do_IRQ and add support for
>  using gpio irqs.       
> 
> (noticed this while searching for __do_IRQ related stuff in my email
> last night.)
> 
> regards, Kyle
> 
>> Regards
>> Greg
>>
>>
>> -- 
>> ------------------------------------------------------------------------
>> Greg Ungerer  --  Principal Engineer        EMAIL:     gerg@snapgear.com
>> SnapGear Group, McAfee                      PHONE:       +61 7 3435 2888
>> 8 Gardner Close                             FAX:         +61 7 3217 5323
>> Milton, QLD, 4064, Australia                WEB: http://www.SnapGear.com
> 
>> m68knommu: stop using __do_IRQ
>>
>> The use of __do_IRQ is deprecated, so lets stop using it.
>> Generally the interrupts on the supported processors here are
>> level triggered, so this is strait forward to switch over to
>> using the standard handle_level_irq flow handler.
>>
>> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
>> ---
>>  arch/m68knommu/Kconfig                       |    4 ++++
>>  arch/m68knommu/platform/5272/intc.c          |    1 +
>>  arch/m68knommu/platform/68328/ints.c         |    1 +
>>  arch/m68knommu/platform/68360/ints.c         |    1 +
>>  arch/m68knommu/platform/coldfire/intc-2.c    |    1 +
>>  arch/m68knommu/platform/coldfire/intc-simr.c |    1 +
>>  arch/m68knommu/platform/coldfire/intc.c      |    1 +
>>  7 files changed, 10 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig
>> index 2609c39..fd28178 100644
>> --- a/arch/m68knommu/Kconfig
>> +++ b/arch/m68knommu/Kconfig
>> @@ -59,6 +59,10 @@ config GENERIC_HARDIRQS
>>  	bool
>>  	default y
>>  
>> +config GENERIC_HARDIRQS_NO__DO_IRQ
>> +	bool
>> +	default y
>> +
>>  config GENERIC_CALIBRATE_DELAY
>>  	bool
>>  	default y
>> diff --git a/arch/m68knommu/platform/5272/intc.c b/arch/m68knommu/platform/5272/intc.c
>> index 7081e0a..e9da6f1 100644
>> --- a/arch/m68knommu/platform/5272/intc.c
>> +++ b/arch/m68knommu/platform/5272/intc.c
>> @@ -133,6 +133,7 @@ void __init init_IRQ(void)
>>  		irq_desc[irq].depth = 1;
>>  		irq_desc[irq].chip = &intc_irq_chip;
>>  		intc_irq_set_type(irq, 0);
>> +		set_irq_handler(irq, handle_level_irq);
>>  	}
>>  }
>>  
>> diff --git a/arch/m68knommu/platform/68328/ints.c b/arch/m68knommu/platform/68328/ints.c
>> index b91ee85..90516ee 100644
>> --- a/arch/m68knommu/platform/68328/ints.c
>> +++ b/arch/m68knommu/platform/68328/ints.c
>> @@ -183,6 +183,7 @@ void __init init_IRQ(void)
>>  		irq_desc[i].action = NULL;
>>  		irq_desc[i].depth = 1;
>>  		irq_desc[i].chip = &intc_irq_chip;
>> +		set_irq_handler(irq, handle_level_irq);
>>  	}
>>  }
>>  
>> diff --git a/arch/m68knommu/platform/68360/ints.c b/arch/m68knommu/platform/68360/ints.c
>> index 6f22970..cdf691e 100644
>> --- a/arch/m68knommu/platform/68360/ints.c
>> +++ b/arch/m68knommu/platform/68360/ints.c
>> @@ -136,6 +136,7 @@ void init_IRQ(void)
>>  		irq_desc[i].action = NULL;
>>  		irq_desc[i].depth = 1;
>>  		irq_desc[i].chip = &intc_irq_chip;
>> +		set_irq_handler(irq, handle_level_irq);
>>  	}
>>  }
>>  
>> diff --git a/arch/m68knommu/platform/coldfire/intc-2.c b/arch/m68knommu/platform/coldfire/intc-2.c
>> index 5598c8b..6410f7e 100644
>> --- a/arch/m68knommu/platform/coldfire/intc-2.c
>> +++ b/arch/m68knommu/platform/coldfire/intc-2.c
>> @@ -88,6 +88,7 @@ void __init init_IRQ(void)
>>  		irq_desc[irq].action = NULL;
>>  		irq_desc[irq].depth = 1;
>>  		irq_desc[irq].chip = &intc_irq_chip;
>> +		set_irq_handler(irq, handle_level_irq);
>>  	}
>>  }
>>  
>> diff --git a/arch/m68knommu/platform/coldfire/intc-simr.c b/arch/m68knommu/platform/coldfire/intc-simr.c
>> index 1b01e79..7f4abb3 100644
>> --- a/arch/m68knommu/platform/coldfire/intc-simr.c
>> +++ b/arch/m68knommu/platform/coldfire/intc-simr.c
>> @@ -73,6 +73,7 @@ void __init init_IRQ(void)
>>  		irq_desc[irq].depth = 1;
>>  		irq_desc[irq].chip = &intc_irq_chip;
>>  		intc_irq_set_type(irq, 0);
>> +		set_irq_handler(irq, handle_level_irq);
>>  	}
>>  }
>>  
>> diff --git a/arch/m68knommu/platform/coldfire/intc.c b/arch/m68knommu/platform/coldfire/intc.c
>> index a4560c8..40b9e8d 100644
>> --- a/arch/m68knommu/platform/coldfire/intc.c
>> +++ b/arch/m68knommu/platform/coldfire/intc.c
>> @@ -148,6 +148,7 @@ void __init init_IRQ(void)
>>  		irq_desc[irq].depth = 1;
>>  		irq_desc[irq].chip = &intc_irq_chip;
>>  		intc_irq_set_type(irq, 0);
>> +		set_irq_handler(irq, handle_level_irq);
>>  	}
>>  }
>>  
> 
> 


-- 
------------------------------------------------------------------------
Greg Ungerer  --  Principal Engineer        EMAIL:     gerg@snapgear.com
SnapGear Group, McAfee                      PHONE:       +61 7 3435 2888
8 Gardner Close                             FAX:         +61 7 3217 5323
Milton, QLD, 4064, Australia                WEB: http://www.SnapGear.com

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Having many dozens of modules, the searches down the linked
list of sections would dominate the lookup time, dwarfing
any savings from the binary search within the section.

A simple move-to-front optimisation exploits the commonality
of the code paths taken, and in simple real-world tests
on other architectures reduced the number of steps in the
search to barely more than 1.

Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
---
 arch/parisc/kernel/unwind.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index d58eac1..76ed62e 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -80,8 +80,11 @@ find_unwind_entry(unsigned long addr)
 			if (addr >= table->start && 
 			    addr <= table->end)
 				e = find_unwind_entry_in_table(table, addr);
-			if (e)
+			if (e) {
+				/* Move-to-front to exploit common traces */
+				list_move(&table->list, &unwind_tables);
 				break;
+			}
 		}
 
 	return e;
-- 
1.5.6.5


From - Thu Nov 08 21:06:17 2018
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From - Thu Nov 08 21:06:17 2018
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 08/18] parisc: remove big kernel lock
Date: Tue, 14 Sep 2010 21:34:59 +0200
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Cc: Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
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The parisc version of the perf code is sufficiently
protected by its own spinlock, no need to use the BKL.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/perf.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index f9f6783..ba0c053 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -46,7 +46,6 @@
 #include <linux/init.h>
 #include <linux/proc_fs.h>
 #include <linux/miscdevice.h>
-#include <linux/smp_lock.h>
 #include <linux/spinlock.h>
 
 #include <asm/uaccess.h>
@@ -261,16 +260,13 @@ printk("Preparing to start counters\n");
  */
 static int perf_open(struct inode *inode, struct file *file)
 {
-	lock_kernel();
 	spin_lock(&perf_lock);
 	if (perf_enabled) {
 		spin_unlock(&perf_lock);
-		unlock_kernel();
 		return -EBUSY;
 	}
 	perf_enabled = 1;
  	spin_unlock(&perf_lock);
-	unlock_kernel();
 
 	return 0;
 }
-- 
1.7.1

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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH 08/18] parisc: remove big kernel lock
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On Tue, Sep 14, 2010 at 09:34:59PM +0200, Arnd Bergmann wrote:
> The parisc version of the perf code is sufficiently
> protected by its own spinlock, no need to use the BKL.
> 

I'd rather just remove the file entirely, as it doesn't work, probably
will never work, and all the relevant people who could have made it work
have left HP and so no longer have access to the documentation. I'll
commit a patch removing it from the kernel for the next merge window.

Nice work Arnd, it's great to see the BKL finally gasping its last
breaths. :)

--Kyle
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From - Thu Nov 08 21:06:18 2018
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From: Anbu Elancheziyan <anbu@drexel.edu>
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Subject: PA-RISC system up for adoption
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Hi everyone,

I have an HP PA-RISC C110 A4200A 9000 system that I'd like to donate.
Sorry, I don't have the specs but it already had debian on it (has HDD,
video and ethernet). I'm located in Philadelphia, USA and would like to
know if someone interested could pick it up. Unfortunately, I can't
deliver. I'd like to see it being used rather than recycled.

Thanks!
Anbu.
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From - Thu Nov 08 21:06:18 2018
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Cc: linux-sh@vger.kernel.org, Roman Zippel <zippel@linux-m68k.org>,
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Xref: news.gmane.org gmane.linux.uml.devel:12500 gmane.linux.ports.sh.devel:8874 gmane.linux.kernel.pci:9531 gmane.linux.drivers.video-input-infrastructure:23227 gmane.linux.ports.parisc:3094 gmane.linux.network:172209 gmane.linux.ports.alpha:1138
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/3094>

This is a set of simple patches to remove the big kernel
lock in some remaining areas and introduce a Kconfig
option which I'd like to have included in linux-next
and get included in the 2.6.37 merge window.

I have a total of five topic branches, which together
remove the BKL from all code except those modules
which get marked as 'depends on BKL' in the final
patch of this series.

It's fine if maintainers want to add some of these
patches to their own queue, as long as they all make
it into linux-next.

Stephen, please add
git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arnd/bkl.git config

Arnd Bergmann (17):
  hpet: kill BKL, add compat_ioctl
  proc/pci: kill BKL
  s390/block: kill the big kernel lock
  isapnp: BKL removal
  alpha: kill big kernel lock
  cris: autoconvert trivial BKL users
  m68k: remove big kernel lock
  parisc: remove big kernel lock
  sh: kill big kernel lock
  uml: kill big kernel lock
  tlclk: remove big kernel lock
  i4l: kill big kernel lock
  misdn: kill big kernel lock
  dvb/bt8xx: kill the big kernel lock
  dvb-core: kill the big kernel lock
  rtmutex-tester: make it build without BKL
  BKL: introduce CONFIG_BKL.

Al Viro (1):
  fix rawctl compat ioctls breakage on amd64 and itanic

 arch/alpha/kernel/osf_sys.c                 |    5 -
 arch/alpha/kernel/traps.c                   |    3 -
 arch/cris/arch-v10/drivers/ds1302.c         |    7 +-
 arch/cris/arch-v10/drivers/pcf8563.c        |    6 +-
 arch/cris/arch-v10/drivers/sync_serial.c    |   11 +-
 arch/cris/arch-v32/drivers/cryptocop.c      |    4 +-
 arch/cris/arch-v32/drivers/mach-a3/gpio.c   |   11 +-
 arch/cris/arch-v32/drivers/mach-fs/gpio.c   |   11 +-
 arch/cris/arch-v32/drivers/pcf8563.c        |    6 +-
 arch/cris/arch-v32/drivers/sync_serial.c    |   11 +-
 arch/m68k/kernel/sys_m68k.c                 |    7 +-
 arch/parisc/kernel/perf.c                   |    4 -
 arch/sh/kernel/ptrace_64.c                  |    9 +-
 arch/um/drivers/harddog_kern.c              |   13 +-
 arch/um/drivers/hostaudio_kern.c            |    8 +-
 arch/um/drivers/ubd_kern.c                  |    8 +-
 arch/um/kernel/exec.c                       |    2 -
 drivers/char/hpet.c                         |   98 +++++++----
 drivers/char/raw.c                          |  243 +++++++++++++++-----------
 drivers/char/tlclk.c                        |    6 +-
 drivers/gpu/drm/Kconfig                     |    5 +-
 drivers/isdn/capi/Kconfig                   |    2 +-
 drivers/isdn/i4l/isdn_tty.c                 |   11 +-
 drivers/isdn/mISDN/stack.c                  |    7 -
 drivers/media/Kconfig                       |    1 +
 drivers/media/dvb/bt8xx/dst_ca.c            |    7 +-
 drivers/media/dvb/dvb-core/dmxdev.c         |   17 +--
 drivers/media/dvb/dvb-core/dvb_ca_en50221.c |    8 +-
 drivers/media/dvb/dvb-core/dvb_net.c        |    9 +-
 drivers/media/dvb/dvb-core/dvbdev.c         |   17 +-
 drivers/net/appletalk/Kconfig               |    1 +
 drivers/pci/proc.c                          |    4 +-
 drivers/pnp/isapnp/proc.c                   |   13 +-
 drivers/s390/block/dasd.c                   |    6 -
 drivers/s390/block/dasd_ioctl.c             |   17 +--
 drivers/s390/block/dcssblk.c                |    5 -
 drivers/staging/cx25821/Kconfig             |    1 +
 drivers/staging/easycap/Kconfig             |    1 +
 drivers/staging/go7007/Kconfig              |    1 +
 drivers/staging/usbip/Kconfig               |    2 +-
 drivers/usb/gadget/Kconfig                  |    2 +-
 fs/Kconfig                                  |    1 +
 fs/adfs/Kconfig                             |    1 +
 fs/afs/Kconfig                              |    1 +
 fs/autofs/Kconfig                           |    1 +
 fs/autofs4/Kconfig                          |    1 +
 fs/ceph/Kconfig                             |    1 +
 fs/coda/Kconfig                             |    1 +
 fs/compat_ioctl.c                           |   70 --------
 fs/ecryptfs/Kconfig                         |    1 +
 fs/freevxfs/Kconfig                         |    1 +
 fs/hpfs/Kconfig                             |    1 +
 fs/jffs2/Kconfig                            |    1 +
 fs/ncpfs/Kconfig                            |    1 +
 fs/nfs/Kconfig                              |    1 +
 fs/nfsd/Kconfig                             |    1 +
 fs/ocfs2/Kconfig                            |    1 +
 fs/qnx4/Kconfig                             |    1 +
 fs/reiserfs/Kconfig                         |    1 +
 fs/smbfs/Kconfig                            |    1 +
 fs/squashfs/Kconfig                         |    1 +
 fs/udf/Kconfig                              |    1 +
 fs/ufs/Kconfig                              |    1 +
 include/linux/smp_lock.h                    |    7 +-
 init/Kconfig                                |    2 +-
 kernel/rtmutex-tester.c                     |    6 +
 kernel/trace/Kconfig                        |    1 +
 lib/Kconfig.debug                           |    9 +
 net/ipx/Kconfig                             |    1 +
 net/irda/Kconfig                            |    1 +
 net/irda/irnet/Kconfig                      |    1 +
 net/x25/Kconfig                             |    1 +
 72 files changed, 355 insertions(+), 375 deletions(-)

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Bob Picco <bob.picco@hp.com>
Cc: Clemens Ladisch <clemens@ladisch.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Gross <mark.gross@intel.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-alpha@vger.kernel.org
Cc: linux-cris-kernel@axis.com
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-media@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: user-mode-linux-devel@lists.sourceforge.net

------------------------------------------------------------------------------
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and start using them to simplify application deployment and
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From - Thu Nov 08 21:06:18 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.uml.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.pci,gmane.linux.network,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.parisc,gmane.linux.ports.alpha
Subject: Re: [PATCH 00/18] Make the big kernel lock optional
Date: Wed, 15 Sep 2010 19:37:18 +1000
Lines: 94
Approved: news@gmane.org
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Cc: Matt, linux-sh@vger.kernel.org, Roman Zippel <zippel@linux-m68k.org>,
	linux-pci@vger.kernel.org, Heiko Carstens <heiko.carstens@de.ibm.com>,
	Picco <bob.picco@hp.com>, Jaroslav Kysela <perex@perex.cz>,
	netdev@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	linux-s390@vger.kernel.org, Jesper Nilsson <jesper.nilsson@axis.com>,
	Mark Gross <mark.gross@intel.com>, Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Uytterhoeven <geert@linux-m68k.org>, Karsten, Geert,
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	linux-m68k@lists.linux-m68k.org,
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	Jesse Barnes <jbarnes@vi
To: Arnd Bergmann <arnd@arndb.de>
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On Tue, 14 Sep 2010 21:34:51 +0200 Arnd Bergmann <arnd@arndb.de> wrote:
>
> Stephen, please add
> git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arnd/bkl.git config

Added from today.

Thanks for adding your subsystem tree as a participant of linux-next.  As
you may know, this is not a judgment of your code.  The purpose of
linux-next is for integration testing and to lower the impact of
conflicts between subsystems in the next merge window.=20

You will need to ensure that the patches/commits in your tree/series have
been:
     * submitted under GPL v2 (or later) and include the Contributor's
	Signed-off-by,
     * posted to the relevant mailing list,
     * reviewed by you (or another maintainer of your subsystem tree),
     * successfully unit tested, and=20
     * destined for the current or next Linux merge window.

Basically, this should be just what you would send to Linus (or ask him
to fetch).  It is allowed to be rebased if you deem it necessary.

--=20
Cheers,
Stephen Rothwell=20
sfr@canb.auug.org.au

Legal Stuff:
By participating in linux-next, your subsystem tree contributions are
public and will be included in the linux-next trees.  You may be sent
e-mail messages indicating errors or other issues when the
patches/commits from your subsystem tree are merged and tested in
linux-next.  These messages may also be cross-posted to the linux-next
mailing list, the linux-kernel mailing list, etc.  The linux-next tree
project and IBM (my employer) make no warranties regarding the linux-next
project, the testing procedures, the results, the e-mails, etc.  If you
don't agree to these ground rules, let me know and I'll remove your tree
from participation in linux-next.

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------------------------------------------------------------------------------
Start uncovering the many advantages of virtual appliances
and start using them to simplify application deployment and
accelerate your shift to cloud computing.
http://p.sf.net/sfu/novell-sfdev2dev
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_______________________________________________
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From - Thu Nov 08 21:06:18 2018
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From: matt mooney <mfm@muteddisk.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.janitors
Subject: [PATCH 11/20] parisc: change to new flag variable
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Cc: Helge Deller <deller@gmx.de>,
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	Andrew Morton <akpm@linux-foundation.org>,
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To: Kyle McMartin <kyle@mcmartin.ca>
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Replace EXTRA_CFLAGS with ccflags-y.

Signed-off-by: matt mooney <mfm@muteddisk.com>
---
 arch/parisc/math-emu/Makefile |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/math-emu/Makefile b/arch/parisc/math-emu/Makefile
index 1f3f225..0bd63b0 100644
--- a/arch/parisc/math-emu/Makefile
+++ b/arch/parisc/math-emu/Makefile
@@ -3,7 +3,7 @@
 #
 
 # See arch/parisc/math-emu/README
-EXTRA_CFLAGS += -Wno-parentheses -Wno-implicit-function-declaration \
+ccflags-y := -Wno-parentheses -Wno-implicit-function-declaration \
 	-Wno-uninitialized -Wno-strict-prototypes -Wno-return-type \
 	-Wno-implicit-int
 
-- 
1.7.2.1


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On Wed, Sep 22, 2010 at 11:51:05PM -0700, matt mooney wrote:
> Replace EXTRA_CFLAGS with ccflags-y.
> 

Looks reasonable, thanks! Applied.

--Kyle
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Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
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On Wed, Sep 8, 2010 at 11:14 AM, Thomas Gleixner <tglx@linutronix.de> w=
rote:
> =A0The following architectures are still using __do_IRQ():
>
> =A0alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um

Thomas,

I (belatedly) took a look at fixing ia64 ... but I've run into a small =
snag.
The __do_IRQ() routine makes a call to:

 desc->chip->end(irq);

while neither of the "handle_level_irq()" nor "handle_edge_irq()"
functions do this.

On ia64 iosapic_end_level_irq() call iosapic_eoi() for me. Without it
my system hangs during boot (with some driver timeout complaining
about dropped interrupts).

Is the omission of desc->chip->end(irq); deliberate? In which case
I need to find another place to call iosapic_eoi(). Or is it accidental=
?

Thanks

-Tony

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On Mon, 27 Sep 2010, Tony Luck wrote:

> On Wed, Sep 8, 2010 at 11:14 AM, Thomas Gleixner <tglx@linutronix.de> wrote:
> > The following architectures are still using __do_IRQ():
> >
> > alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um
> 
> Thomas,
> 
> I (belatedly) took a look at fixing ia64 ... but I've run into a small snag.
> The __do_IRQ() routine makes a call to:
> 
>  desc->chip->end(irq);
> 
> while neither of the "handle_level_irq()" nor "handle_edge_irq()"
> functions do this.
> 
> On ia64 iosapic_end_level_irq() call iosapic_eoi() for me. Without it
> my system hangs during boot (with some driver timeout complaining
> about dropped interrupts).
> 
> Is the omission of desc->chip->end(irq); deliberate? In which case
> I need to find another place to call iosapic_eoi(). Or is it accidental?

No, it's deliberate. The solution is to use the correct flow handler
for your device. We have currently several flow handlers implemented:

    handle_level_irq
	{
		if (chip->mask_ack)
			chip->mask_ack()
		else {
		     chip->mask();
		     if (chip->ack)
		     	chip->ack();
		}

		....

		chip->unmask();
	}

    handle_edge_irq
	{
		chip->ack()

		...
	}

    handle_simple_irq
	{
		...
	}

    handle_fasteoi_irq
	{
		...
		chip->eoi();
	}

    handle_percpu_irq
	{	
		if (chip->ack)
		     	chip->ack();
		
		if (chip->eoi)
		     	chip->eoi();
	}

Note, that handle_percpu_irq does not take the irq_desc->lock.

So the trick is to select the matching handler and have separate irq
chip implementations if necessary.

Hope that helps.

Thanks,

	tglx

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> No, it's deliberate. The solution is to use the correct flow handler
> for your device. We have currently several flow handlers implemented:

Yes, I found the different "handle_*_irq()" functions. The _percpu_
variant works fine for the ia64 per-cpu interrupt paths.

But *NONE* of them call desc->chip->end() (even though the code flow
in Documentation/DcoBook/genericirq.tmpl says that three of them do
call it].  So it appears that this was thought to be necessary when
the docs were written, but was not put into the code.

The ia64 chip->end function for edge triggered interrupts is a nop(),
so handle_edge_irq() ought to work just fine for it [can't confirm
from my initial tests because the HP box I'm using only has level
triggered ones].

handle_level_irq() works for my level triggered interrupts if I add
a "desc->chip->end(irq)" call to it.

git grep "chip->end" appears to show that the only use of chip->end
is in the "Recovery handler for misrouted interrupts": try_one_irq()

At minimum we seem to have some documentation inconsistencies with
the code.

-Tony


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To: "Luck, Tony" <tony.luck@intel.com>
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On Mon, 27 Sep 2010, Luck, Tony wrote:

> > No, it's deliberate. The solution is to use the correct flow handler
> > for your device. We have currently several flow handlers implemented:
> 
> Yes, I found the different "handle_*_irq()" functions. The _percpu_
> variant works fine for the ia64 per-cpu interrupt paths.
> 
> But *NONE* of them call desc->chip->end() (even though the code flow
> in Documentation/DcoBook/genericirq.tmpl says that three of them do
> call it].  So it appears that this was thought to be necessary when
> the docs were written, but was not put into the code.

Yeah, sorry.
 
> The ia64 chip->end function for edge triggered interrupts is a nop(),
> so handle_edge_irq() ought to work just fine for it [can't confirm
> from my initial tests because the HP box I'm using only has level
> triggered ones].
> 
> handle_level_irq() works for my level triggered interrupts if I add
> a "desc->chip->end(irq)" call to it.

Hmm, why isn't chip->unmask() sufficient ?
 
> git grep "chip->end" appears to show that the only use of chip->end
> is in the "Recovery handler for misrouted interrupts": try_one_irq()

Right, that's just due to the old __do_IRQ() compability.
 
> At minimum we seem to have some documentation inconsistencies with
> the code.

Will fix.

Thanks,

	tglx
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Subject: RE: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
 __do_IRQ() code
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To: Thomas Gleixner <tglx@linutronix.de>
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>> handle_level_irq() works for my level triggered interrupts if I add
>> a "desc->chip->end(irq)" call to it.
>
> Hmm, why isn't chip->unmask() sufficient ?
 
That's a good question.  I'll take a look at what ia64 is doing
in the ->unmask() and ->end() functions to see if I can fix this
with some code shuffling.

Thanks

-Tony

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Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
 __do_IRQ() code
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On Wed, Sep 8, 2010 at 8:14 PM, Thomas Gleixner <tglx@linutronix.de> wr=
ote:
> __do_IRQ() has been deprecated after a two years migration phase in
> =A0The following architectures are still using __do_IRQ():
>
> =A0alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um
>

Maybe I'm naive but shouldn't this path work?
Does um need some extra work?

The linux executable aborts immediately when I apply my patch.

---cut---
Locating the bottom of the address space ... 0x10000
Locating the top of the address space ... 0xc0000000
Core dump limits :
        soft - 0
        hard - NONE
Checking that ptrace can change system call numbers...OK
Checking syscall emulation patch for ptrace...OK
Checking advanced syscall emulation patch for ptrace...OK
Checking for tmpfs mount on /dev/shm...nothing mounted on /dev/shm
Checking PROT_EXEC mmap in /tmp/...OK
Checking for the skas3 patch in the host:
  - /proc/mm...not found: No such file or directory
  - PTRACE_FAULTINFO...not found
  - PTRACE_LDT...not found
UML running in SKAS0 mode
Aborted
---cut---

diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um
index ec2b8da..ae950e0 100644
--- a/arch/um/Kconfig.um
+++ b/arch/um/Kconfig.um
@@ -147,3 +147,8 @@ config KERNEL_STACK_ORDER
          This option determines the size of UML kernel stacks.  They w=
ill
          be 1 << order pages.  The default is OK unless you're running=
 Valgrind
          on UML, in which case, set this to 3.
+
+config GENERIC_HARDIRQS_NO__DO_IRQ
+       def_bool y
+
+
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index a3f0b04..3d44535 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -334,7 +334,7 @@ unsigned int do_IRQ(int irq, struct uml_pt_regs *re=
gs)
 {
        struct pt_regs *old_regs =3D set_irq_regs((struct pt_regs *)reg=
s);
        irq_enter();
-       __do_IRQ(irq);
+       generic_handle_irq(irq);
        irq_exit();
        set_irq_regs(old_regs);
        return 1;
--
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Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
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On Mon, 27 Sep 2010, richard -rw- weinberger wrote:

> On Wed, Sep 8, 2010 at 8:14 PM, Thomas Gleixner <tglx@linutronix.de> wrote:
> > __do_IRQ() has been deprecated after a two years migration phase in
> > The following architectures are still using __do_IRQ():
> >
> > alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um
> >
> 
> Maybe I'm naive but shouldn't this path work?
> Does um need some extra work?

Yes. It needs to set the proper flow handlers. Look for set_irq_chip*
functions and how they are used in other archs.

Thanks,

	tglx

 
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From - Thu Nov 08 21:06:18 2018
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Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
 __do_IRQ() code
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To: "Luck, Tony" <tony.luck@intel.com>
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On Mon, Sep 27, 2010 at 12:01:51PM -0700, Luck, Tony wrote:
> > Hmm, why isn't chip->unmask() sufficient ?
>  
> That's a good question.  I'll take a look at what ia64 is doing
> in the ->unmask() and ->end() functions to see if I can fix this
> with some code shuffling.
> 

Did you end up solving this? ia64 iosapic and parisc iosapic still look
fairly similar... I hit the same issue of ->end() not being called in
the handle_level_irq path and ended up just folding in the missing bit
to ->unmask (we were already EOI the IOSAPIC, but missing the EOI for
the parisc cpu.)

--Kyle

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Subject: RE: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
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> Did you end up solving this? ia64 iosapic and parisc iosapic still look
> fairly similar... I hit the same issue of ->end() not being called in
> the handle_level_irq path and ended up just folding in the missing bit
> to ->unmask (we were already EOI the IOSAPIC, but missing the EOI for
> the parisc cpu.)

Kyle,

Yes. Take a look in today's linux-next kernel (tag next-20100929)
for commit: 5d4bff94f9e0877a85b4dc573eb7a3f1d97c13ae

Essentially I just added an "unmask_irq()" call into the ->end
routine, renamed it, and used it as ->unmask.

It seems to work okay - I tried migrating interrupts around by
poking at /proc/irq/NNN/smp_affinity - and that still works.

-Tony

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On Tue, Sep 28, 2010 at 09:55:01PM -0700, Luck, Tony wrote:
> Yes. Take a look in today's linux-next kernel (tag next-20100929)
> for commit: 5d4bff94f9e0877a85b4dc573eb7a3f1d97c13ae
> 
> Essentially I just added an "unmask_irq()" call into the ->end
> routine, renamed it, and used it as ->unmask.
> 

Ahh, cool, glad to hear it.

--Kyle

> It seems to work okay - I tried migrating interrupts around by
> poking at /proc/irq/NNN/smp_affinity - and that still works.
> 
> -Tony
> 
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From - Thu Nov 08 21:06:19 2018
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Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
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On Wed, Sep 08, 2010 at 06:14:14PM -0000, Thomas Gleixner wrote:
> __do_IRQ() has been deprecated after a two years migration phase in
> commit 0e57aa1. Since then another 18 month have gone by.
> 
>  The following architectures are still using __do_IRQ():
> 
>   alpha, cris, ia64, h8300, m32r, m68knommu, parisc, um
> 
> So now the question arises what to do with __do_IRQ().
> 

In penance while I finish testing what I can on parisc this week
(conversion is done, I just need to find time to plug in ancient crap
 and see if it still handles interrupts...) I've killed __do_IRQ on
cris. Sort of. I have no idea if it builds or anything, but it was
pretty low-hanging fruit since it does all its own masking in its
entry point, so as near as I can tell, aside from disabling spurious
irqs, none of the irq_chip handlers aside from affinity are needed
on cris.

(Since it's masking/unmasking itself, it looks like handle_simple_irq
 will work for the common irqs, and on v32 we can use handle_percpu_irq
 for the timer and ipi.)

Visual compilation at least gives me a logical flow that seems generally
sensible.

I'd appreciate a second pair of eyes, and if it's ok, I'll clean it up
and submit it.

regards, Kyle

---

 arch-v10/kernel/irq.c |   26 +++++---------------------
 arch-v32/kernel/irq.c |   49 ++++++++++++-------------------------------------
 kernel/irq.c          |    2 +-
 3 files changed, 18 insertions(+), 59 deletions(-)

diff --git a/arch/cris/arch-v10/kernel/irq.c b/arch/cris/arch-v10/kernel/irq.c
index a0c0df8..07f17ce 100644
--- a/arch/cris/arch-v10/kernel/irq.c
+++ b/arch/cris/arch-v10/kernel/irq.c
@@ -104,16 +104,6 @@ static void (*interrupt[NR_IRQS])(void) = {
 	IRQ31_interrupt
 };
 
-static void enable_crisv10_irq(unsigned int irq);
-
-static unsigned int startup_crisv10_irq(unsigned int irq)
-{
-	enable_crisv10_irq(irq);
-	return 0;
-}
-
-#define shutdown_crisv10_irq	disable_crisv10_irq
-
 static void enable_crisv10_irq(unsigned int irq)
 {
 	crisv10_unmask_irq(irq);
@@ -124,22 +114,16 @@ static void disable_crisv10_irq(unsigned int irq)
 	crisv10_mask_irq(irq);
 }
 
-static void ack_crisv10_irq(unsigned int irq)
-{
-}
-
-static void end_crisv10_irq(unsigned int irq)
+static void crisv10_noop(unsigned int irq)
 {
 }
 
 static struct irq_chip crisv10_irq_type = {
 	.name =        "CRISv10",
-	.startup =     startup_crisv10_irq,
-	.shutdown =    shutdown_crisv10_irq,
-	.enable =      enable_crisv10_irq,
+	.unmask =      enable_crisv10_irq,
+	.mask =        disable_crisv10_irq,
 	.disable =     disable_crisv10_irq,
-	.ack =         ack_crisv10_irq,
-	.end =         end_crisv10_irq,
+	.ack =         crisv10_noop,
 	.set_affinity = NULL
 };
 
@@ -221,7 +205,7 @@ init_IRQ(void)
 
 	/* Initialize IRQ handler descriptors. */
 	for(i = 2; i < NR_IRQS; i++) {
-		irq_desc[i].chip = &crisv10_irq_type;
+		set_irq_chip_and_handler(i, &crisv10_irq_type, handle_simple_irq);
 		set_int_vector(i, interrupt[i]);
 	}
 
diff --git a/arch/cris/arch-v32/kernel/irq.c b/arch/cris/arch-v32/kernel/irq.c
index 2ed48ae..2efc98c 100644
--- a/arch/cris/arch-v32/kernel/irq.c
+++ b/arch/cris/arch-v32/kernel/irq.c
@@ -290,36 +290,6 @@ void crisv32_unmask_irq(int irq)
 	unblock_irq(irq, irq_cpu(irq));
 }
 
-
-static unsigned int startup_crisv32_irq(unsigned int irq)
-{
-	crisv32_unmask_irq(irq);
-	return 0;
-}
-
-static void shutdown_crisv32_irq(unsigned int irq)
-{
-	crisv32_mask_irq(irq);
-}
-
-static void enable_crisv32_irq(unsigned int irq)
-{
-	crisv32_unmask_irq(irq);
-}
-
-static void disable_crisv32_irq(unsigned int irq)
-{
-	crisv32_mask_irq(irq);
-}
-
-static void ack_crisv32_irq(unsigned int irq)
-{
-}
-
-static void end_crisv32_irq(unsigned int irq)
-{
-}
-
 int set_affinity_crisv32_irq(unsigned int irq, const struct cpumask *dest)
 {
 	unsigned long flags;
@@ -330,14 +300,16 @@ int set_affinity_crisv32_irq(unsigned int irq, const struct cpumask *dest)
 	return 0;
 }
 
+static void crisv32_noop(unsigned int irq)
+{
+}
+
 static struct irq_chip crisv32_irq_type = {
 	.name =        "CRISv32",
-	.startup =     startup_crisv32_irq,
-	.shutdown =    shutdown_crisv32_irq,
-	.enable =      enable_crisv32_irq,
-	.disable =     disable_crisv32_irq,
-	.ack =         ack_crisv32_irq,
-	.end =         end_crisv32_irq,
+	.mask =        crisv32_mask_irq,
+	.disable =     crisv32_mask_irq,
+	.unmask =      crisv32_unmask_irq,
+	.ack =         crisv32_noop,
 	.set_affinity = set_affinity_crisv32_irq
 };
 
@@ -472,15 +444,18 @@ init_IRQ(void)
 
 	/* Point all IRQ's to bad handlers. */
 	for (i = FIRST_IRQ, j = 0; j < NR_IRQS; i++, j++) {
-		irq_desc[j].chip = &crisv32_irq_type;
+		set_irq_chip_and_handler(j, &crisv32_irq_type,
+			handle_simple_irq);
 		set_exception_vector(i, interrupt[j]);
 	}
 
         /* Mark Timer and IPI IRQs as CPU local */
 	irq_allocations[TIMER0_INTR_VECT - FIRST_IRQ].cpu = CPU_FIXED;
 	irq_desc[TIMER0_INTR_VECT].status |= IRQ_PER_CPU;
+	set_irq_handler(TIMER0_INTR_VECT, handle_percpu_irq);
 	irq_allocations[IPI_INTR_VECT - FIRST_IRQ].cpu = CPU_FIXED;
 	irq_desc[IPI_INTR_VECT].status |= IRQ_PER_CPU;
+	set_irq_handler(IPI_INTR_VECT, handle_percpu_irq);
 
 	set_exception_vector(0x00, nmi_interrupt);
 	set_exception_vector(0x30, multiple_interrupt);
diff --git a/arch/cris/kernel/irq.c b/arch/cris/kernel/irq.c
index 469f7f9..14d9ce9 100644
--- a/arch/cris/kernel/irq.c
+++ b/arch/cris/kernel/irq.c
@@ -93,7 +93,7 @@ asmlinkage void do_IRQ(int irq, struct pt_regs * regs)
 		printk("do_IRQ: stack overflow: %lX\n", sp);
 		show_stack(NULL, (unsigned long *)sp);
 	}
-	__do_IRQ(irq);
+	generic_handle_irq(irq);
         irq_exit();
 	set_irq_regs(old_regs);
 }
--
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From - Thu Nov 08 21:06:19 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
 __do_IRQ() code
Date: Wed, 29 Sep 2010 22:41:03 -0400
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Cc: Thomas Gleixner <tglx@linutronix.de>,
	LKML <linux-kernel@vger.kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
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To: Kyle McMartin <kyle@mcmartin.ca>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/3110>

On Wed, Sep 29, 2010 at 09:26:41PM -0400, Kyle McMartin wrote:
> I'd appreciate a second pair of eyes, and if it's ok, I'll clean it up
> and submit it.
> 

Let's do h8300 while we're at it, since that also /looks/ trivial...
(probably famous last words.)

No idea if it's edge or level or what, but given the handlers that would
be called in the __do_IRQ patch, handle_edge_irq seems most sensible.

Executive summary: kill implied .ack = NULL, rename enable to unmask,
kill empty .end since dummy_irq_chip.end will suit us fine. Kill some
unneeded irq_desc initializers that are also implicit...

Again, if someone could build/boot/whatever test this, that would be
fantastic, and I'll add their Tested-by and submit.

--kyle

---
 irq.c |   16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/arch/h8300/kernel/irq.c b/arch/h8300/kernel/irq.c
index c25dc2c..acdbc07 100644
--- a/arch/h8300/kernel/irq.c
+++ b/arch/h8300/kernel/irq.c
@@ -50,10 +50,6 @@ static void h8300_disable_irq(unsigned int irq)
 		IER_REGS &= ~(1 << (irq - EXT_IRQ0));
 }
 
-static void h8300_end_irq(unsigned int irq)
-{
-}
-
 static unsigned int h8300_startup_irq(unsigned int irq)
 {
 	if (is_ext_irq(irq))
@@ -75,10 +71,9 @@ struct irq_chip h8300irq_chip = {
 	.name		= "H8300-INTC",
 	.startup	= h8300_startup_irq,
 	.shutdown	= h8300_shutdown_irq,
-	.enable		= h8300_enable_irq,
+	.unmask		= h8300_enable_irq,
+	.mask		= h8300_disable_irq,
 	.disable	= h8300_disable_irq,
-	.ack		= NULL,
-	.end		= h8300_end_irq,
 };
 
 #if defined(CONFIG_RAMKERNEL)
@@ -161,17 +156,14 @@ void __init init_IRQ(void)
 	setup_vector();
 
 	for (c = 0; c < NR_IRQS; c++) {
-		irq_desc[c].status = IRQ_DISABLED;
-		irq_desc[c].action = NULL;
-		irq_desc[c].depth = 1;
-		irq_desc[c].chip = &h8300irq_chip;
+		set_irq_chip_and_handler(c, &h8300_irq_chip, handle_edge_irq);
 	}
 }
 
 asmlinkage void do_IRQ(int irq)
 {
 	irq_enter();
-	__do_IRQ(irq);
+	generic_handle_irq(irq);
 	irq_exit();
 }
 
--
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From - Thu Nov 08 21:06:19 2018
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From - Thu Nov 08 21:06:19 2018
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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel.next,gmane.linux.kernel.input,gmane.linux.ports.parisc
Subject: [PATCH/RFC] input: hil_mlc - Fix hil_mlc_serio_id file2alias
 failure
Date: Tue, 12 Oct 2010 21:17:49 +0200 (CEST)
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Commit e288bf7c346360ac9dafbc1b6d7b6b1a82b51616 ("Input: HIL keyboard and
serio - add missing MODULE_DEVICE_TABLE()") caused the following build
failure on m68k/allmodconfig:

FATAL: drivers/input/serio/hil_mlc: struct serio_device_id is not terminated with a NULL entry!

hil_mlc_serio_id is not an array, but a single struct serio_device_id entry.
Fix the build by converting it into an array, and adding a NULL entry.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
Build failure in linux-next:
http://kisskb.ellerman.id.au/kisskb/buildresult/3385851/

I'm not sure this is the right fix, as hil_mlc_serio_id is a catch-all ID.
Perhaps the MODULE_DEVICE_TABLE() should just be removed again instead?

 drivers/input/serio/hil_mlc.c |   18 +++++++++++-------
 1 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index cc8e01f..43904db 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -897,11 +897,15 @@ static void hil_mlc_serio_close(struct serio *serio)
 	/* TODO wake up interruptable */
 }
 
-static const struct serio_device_id hil_mlc_serio_id = {
-	.type = SERIO_HIL_MLC,
-	.proto = SERIO_HIL,
-	.extra = SERIO_ANY,
-	.id = SERIO_ANY,
+static const struct serio_device_id hil_mlc_serio_ids[] = {
+	{
+	    /* There's only one ID, which is a catch-all */
+	    .type = SERIO_HIL_MLC,
+	    .proto = SERIO_HIL,
+	    .extra = SERIO_ANY,
+	    .id = SERIO_ANY,
+	},
+	{ 0 }
 };
 
 int hil_mlc_register(hil_mlc *mlc)
@@ -934,7 +938,7 @@ int hil_mlc_register(hil_mlc *mlc)
 		mlc->serio[i] = mlc_serio;
 		snprintf(mlc_serio->name, sizeof(mlc_serio->name)-1, "HIL_SERIO%d", i);
 		snprintf(mlc_serio->phys, sizeof(mlc_serio->phys)-1, "HIL%d", i);
-		mlc_serio->id			= hil_mlc_serio_id;
+		mlc_serio->id			= hil_mlc_serio_ids[0];
 		mlc_serio->id.id		= i; /* HIL port no. */
 		mlc_serio->write		= hil_mlc_serio_write;
 		mlc_serio->open			= hil_mlc_serio_open;
@@ -1011,7 +1015,7 @@ static void __exit hil_mlc_exit(void)
 }
 
 
-MODULE_DEVICE_TABLE(serio, hil_mlc_serio_id);
+MODULE_DEVICE_TABLE(serio, hil_mlc_serio_ids);
 
 module_init(hil_mlc_init);
 module_exit(hil_mlc_exit);
-- 
1.7.0.4

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

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Subject: Re: [PATCH/RFC] input: hil_mlc - Fix hil_mlc_serio_id file2alias
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On Tue, Oct 12, 2010 at 09:17:49PM +0200, Geert Uytterhoeven wrote:
> Commit e288bf7c346360ac9dafbc1b6d7b6b1a82b51616 ("Input: HIL keyboard and
> serio - add missing MODULE_DEVICE_TABLE()") caused the following build
> failure on m68k/allmodconfig:
> 
> FATAL: drivers/input/serio/hil_mlc: struct serio_device_id is not terminated with a NULL entry!
> 
> hil_mlc_serio_id is not an array, but a single struct serio_device_id entry.
> Fix the build by converting it into an array, and adding a NULL entry.
> 
> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
> ---
> Build failure in linux-next:
> http://kisskb.ellerman.id.au/kisskb/buildresult/3385851/
> 
> I'm not sure this is the right fix, as hil_mlc_serio_id is a catch-all ID.
> Perhaps the MODULE_DEVICE_TABLE() should just be removed again instead?
> 

Gah, that original patch was incorrect, I should not have applied it at
all... The serio_device_id in question is for serio port that is being
created by the driver and thus of course should not be used in
MODULE_DEVICE_TABLE().

I'll drop it from my 'next' queue.

-- 
Dmitry

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Rebased ref, commits from common ancestor:
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Rebased ref, commits from common ancestor:
commit 15b612c28d7144cf25f191a2d4fb66327c56553a
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Wed Oct 13 21:00:55 2010 -0400

    parisc: lay groundwork for killing __do_IRQ
    
    Use proper accessors and handlers for generic irq cleanups. We just
    call back into __do_IRQ through desc->handler now, and remove the
    explicit calls.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

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On Thu, Oct 14, 2010 at 01:15:35AM +0000, Kyle McMartin wrote:
>     

Ugh, sorry for the spam, I'm rebasing my tree and getting my __do_IRQ
cleanup into mergeable form and forgot about the commit hooks.

--Kyle
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Rebased ref, commits from common ancestor:
commit 1540d86c4809e58cc11fab0e61dd60d4c304f27a
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Wed Oct 13 21:00:55 2010 -0400

    parisc: lay groundwork for killing __do_IRQ
    
    Use proper accessors and handlers for generic irq cleanups. We just
    call back into __do_IRQ through desc->handler now, and remove the
    explicit calls.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

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Rebased ref, commits from common ancestor:
commit 051d044fcbbd363c6896d2a364bdbd5b2559bab7
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 01:02:23 2010 -0400

    parisc: kill __do_IRQ
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 5912de5b24d683c9259264bf417f3e89bc49d95b
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 01:00:51 2010 -0400

    parisc: convert eisa interrupts to flow handlers
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 81fc1dc038973832eef253457836a205009a4fd4
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 00:58:53 2010 -0400

    parisc: convert gsc and dino pci interrupts to flow handlers
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 19a6c0da8c9b415f4029198548de1a8d99d1dd54
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 00:53:17 2010 -0400

    parisc: convert suckyio interrupts to flow handlers
    
    No big deal, just need to convert the suckyio interrupts to be
    a nested handler instead of request_irq the suckyio device in the
    future.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 77c7d196f53a55133bb1b45d1fdb311035a9a9e8
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 00:38:27 2010 -0400

    parisc: convert iosapic interrupts to proper flow handlers
    
    Shift the ->end call (cpu eoi) from __do_IRQ into our
    unmask handler. Also nuke some redundant code.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 88da47ae5dc9def0213e9403355b20a71dae0b08
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 00:12:23 2010 -0400

    parisc: convert cpu interrupts to proper flow handlers
    
    Only major change is renaming functions to match the conventions
    expected by the generic irq code.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 274106f4ed5a118c12e005b79713101ff927ee01
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Wed Oct 13 21:00:55 2010 -0400

    parisc: lay groundwork for killing __do_IRQ
    
    Use proper accessors and handlers for generic irq cleanups. We just
    call back into __do_IRQ through desc->handler now, and remove the
    explicit calls.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

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Rebased ref, commits from common ancestor:
commit 7da1272547ebe96982a42292dfc833457708f4da
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 01:02:23 2010 -0400

    parisc: kill __do_IRQ
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 8ed5c00d7c166f505eb2e8ff47748bfa73824130
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 01:00:51 2010 -0400

    parisc: convert eisa interrupts to flow handlers
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 7998b3bd156478c35de685f90d4d0dda57916c60
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 00:58:53 2010 -0400

    parisc: convert gsc and dino pci interrupts to flow handlers
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 14ff626a64f1c6848b303254be00b1b2ff33a655
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 00:53:17 2010 -0400

    parisc: convert suckyio interrupts to flow handlers
    
    No big deal, just need to convert the suckyio interrupts to be
    a nested handler instead of request_irq the suckyio device in the
    future.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit f3d4605977f9f30993c670a85f75d8f3853144c5
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 00:38:27 2010 -0400

    parisc: convert iosapic interrupts to proper flow handlers
    
    Shift the ->end call (cpu eoi) from __do_IRQ into our
    unmask handler. Also nuke some redundant code.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 4d4f681dc43a06167763ec698f5de4f2b3119ad6
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 00:12:23 2010 -0400

    parisc: convert cpu interrupts to proper flow handlers
    
    Only major change is renaming functions to match the conventions
    expected by the generic irq code.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit ba20085c20f1c9e8af546dea6ad0efa421bdef32
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Wed Oct 13 21:00:55 2010 -0400

    parisc: lay groundwork for killing __do_IRQ
    
    Use proper accessors and handlers for generic irq cleanups. We just
    call back into __do_IRQ through desc->handler now, and remove the
    explicit calls.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

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Rebased ref, commits from common ancestor:
commit 7da1272547ebe96982a42292dfc833457708f4da
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 01:02:23 2010 -0400

    parisc: kill __do_IRQ
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 8ed5c00d7c166f505eb2e8ff47748bfa73824130
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 01:00:51 2010 -0400

    parisc: convert eisa interrupts to flow handlers
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 7998b3bd156478c35de685f90d4d0dda57916c60
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 00:58:53 2010 -0400

    parisc: convert gsc and dino pci interrupts to flow handlers
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 14ff626a64f1c6848b303254be00b1b2ff33a655
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 00:53:17 2010 -0400

    parisc: convert suckyio interrupts to flow handlers
    
    No big deal, just need to convert the suckyio interrupts to be
    a nested handler instead of request_irq the suckyio device in the
    future.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit f3d4605977f9f30993c670a85f75d8f3853144c5
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 00:38:27 2010 -0400

    parisc: convert iosapic interrupts to proper flow handlers
    
    Shift the ->end call (cpu eoi) from __do_IRQ into our
    unmask handler. Also nuke some redundant code.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 4d4f681dc43a06167763ec698f5de4f2b3119ad6
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Thu Oct 14 00:12:23 2010 -0400

    parisc: convert cpu interrupts to proper flow handlers
    
    Only major change is renaming functions to match the conventions
    expected by the generic irq code.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit ba20085c20f1c9e8af546dea6ad0efa421bdef32
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Wed Oct 13 21:00:55 2010 -0400

    parisc: lay groundwork for killing __do_IRQ
    
    Use proper accessors and handlers for generic irq cleanups. We just
    call back into __do_IRQ through desc->handler now, and remove the
    explicit calls.
    
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

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From - Thu Nov 08 21:06:20 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: [RFT] irq changes (was Re: [git] parisc: Changes to ref
 refs/heads/parisc)
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On Thu, Oct 14, 2010 at 05:31:27AM +0000, Kyle McMartin wrote:
> commit 7da1272547ebe96982a42292dfc833457708f4da
> Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
> Date:   Thu Oct 14 01:02:23 2010 -0400
> 
>     parisc: kill __do_IRQ
>     
>     Signed-off-by: Kyle McMartin <kyle@redhat.com>
> 

So, I've killed our __do_IRQ calls... Could people please test this
branch on a variety of machines? I've split up the changes so there's
logical separation between converting the CPU interrupts, and the
sub-interrupt sources (Superio, dino, etc.) so if your device fails
to interrupt, you can just git revert that bit and test the CPU
conversion while I fix it up.

I *think* everything should be ok though, I've tested it on a500/rp3440
class machines with iosapic, but not on anything older.

--Kyle
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From - Thu Nov 08 21:06:20 2018
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Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel.next,gmane.linux.kernel.input,gmane.linux.ports.parisc
Subject: Re: [PATCH/RFC] input: hil_mlc - Fix hil_mlc_serio_id file2alias
 failure
Date: Thu, 14 Oct 2010 11:43:04 -0400
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Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
	Dzianis Kahanovich <mahatma@eu.by>,
	Helge Deller <deller@gmx.de>, linux-next@vger.kernel.org,
	linux-input@vger.kernel.org,
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To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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On Tue, Oct 12, 2010 at 11:56:02PM -0700, Dmitry Torokhov wrote:
> Gah, that original patch was incorrect, I should not have applied it at
> all... The serio_device_id in question is for serio port that is being
> created by the driver and thus of course should not be used in
> MODULE_DEVICE_TABLE().
> 
> I'll drop it from my 'next' queue.
> 

Cool, thansk Dmitry!

--Kyle

From - Thu Nov 08 21:06:20 2018
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From: Helge Deller <helge.deller@steuerkanzlei-deller.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [RFT] irq changes (was Re: [git] parisc: Changes to ref refs/heads/parisc)
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To: Kyle McMartin <kyle@mcmartin.ca>
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  On 10/14/2010 05:39 PM, Kyle McMartin wrote:
> On Thu, Oct 14, 2010 at 05:31:27AM +0000, Kyle McMartin wrote:
>> commit 7da1272547ebe96982a42292dfc833457708f4da
>> Author: Kyle McMartin<kyle@dreadnought.i.jkkm.org>
>> Date:   Thu Oct 14 01:02:23 2010 -0400
>>
>>      parisc: kill __do_IRQ
>>
>>      Signed-off-by: Kyle McMartin<kyle@redhat.com>
>>
> So, I've killed our __do_IRQ calls... Could people please test this
> branch on a variety of machines? I've split up the changes so there's
> logical separation between converting the CPU interrupts, and the
> sub-interrupt sources (Superio, dino, etc.) so if your device fails
> to interrupt, you can just git revert that bit and test the CPU
> conversion while I fix it up.
>
> I *think* everything should be ok though, I've tested it on a500/rp3440
> class machines with iosapic, but not on anything older.

c3000 is ok too. But I think it has iosapic as well.
I will try if I can connect the 715/64 and b160L, but I'm not sure if I 
find time to do it this weekend...

BTW, fanotify* isn't wired up yet:
<stdin>:1526:2: warning: #warning syscall fanotify_init not implemented
<stdin>:1530:2: warning: #warning syscall fanotify_mark not implemented

Helge
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Subject: Re: [RFT] irq changes (was Re: [git] parisc: Changes to ref
 refs/heads/parisc)
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Cc: Kyle McMartin <kyle@mcmartin.ca>, linux-parisc@vger.kernel.org
To: Helge Deller <helge.deller@steuerkanzlei-deller.de>
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On Fri, Oct 15, 2010 at 09:51:58PM +0200, Helge Deller wrote:
>  On 10/14/2010 05:39 PM, Kyle McMartin wrote:
> >On Thu, Oct 14, 2010 at 05:31:27AM +0000, Kyle McMartin wrote:
> >>commit 7da1272547ebe96982a42292dfc833457708f4da
> >>Author: Kyle McMartin<kyle@dreadnought.i.jkkm.org>
> >>Date:   Thu Oct 14 01:02:23 2010 -0400
> >>
> >>     parisc: kill __do_IRQ
> >>
> >>     Signed-off-by: Kyle McMartin<kyle@redhat.com>
> >>
> >So, I've killed our __do_IRQ calls... Could people please test this
> >branch on a variety of machines? I've split up the changes so there's
> >logical separation between converting the CPU interrupts, and the
> >sub-interrupt sources (Superio, dino, etc.) so if your device fails
> >to interrupt, you can just git revert that bit and test the CPU
> >conversion while I fix it up.
> >
> >I *think* everything should be ok though, I've tested it on a500/rp3440
> >class machines with iosapic, but not on anything older.
> 
> c3000 is ok too. But I think it has iosapic as well.
> I will try if I can connect the 715/64 and b160L, but I'm not sure
> if I find time to do it this weekend...
> 

C3000 is a good one since it has SuperIO, I don't remember what devices
are behind it (IDE, USB, iirc...) though.

> BTW, fanotify* isn't wired up yet:
> <stdin>:1526:2: warning: #warning syscall fanotify_init not implemented
> <stdin>:1530:2: warning: #warning syscall fanotify_mark not implemented
> 

It's not enabled in 2.6.36 because of bugs:
commit 7c5347733dcc4ba0bac0baf86d99fae0561f33b7
Author: Eric Paris <eparis@redhat.com>
Date:   Mon Oct 11 18:13:31 2010 -0400

    fanotify: disable fanotify syscalls
    
Thanks for testing, Helge!
 --Kyle
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Subject: Re: [RFT] irq changes (was Re: [git] parisc: Changes to ref refs/heads/parisc)
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  On 10/15/2010 10:01 PM, Kyle McMartin wrote:
> On Fri, Oct 15, 2010 at 09:51:58PM +0200, Helge Deller wrote:
>>   On 10/14/2010 05:39 PM, Kyle McMartin wrote:
>>> On Thu, Oct 14, 2010 at 05:31:27AM +0000, Kyle McMartin wrote:
>>>> commit 7da1272547ebe96982a42292dfc833457708f4da
>>>> Author: Kyle McMartin<kyle@dreadnought.i.jkkm.org>
>>>> Date:   Thu Oct 14 01:02:23 2010 -0400
>>>>
>>>>      parisc: kill __do_IRQ
>>>>
>>>>      Signed-off-by: Kyle McMartin<kyle@redhat.com>
>>>>
>>> So, I've killed our __do_IRQ calls... Could people please test this
>>> branch on a variety of machines? I've split up the changes so there's
>>> logical separation between converting the CPU interrupts, and the
>>> sub-interrupt sources (Superio, dino, etc.) so if your device fails
>>> to interrupt, you can just git revert that bit and test the CPU
>>> conversion while I fix it up.
>>>
>>> I *think* everything should be ok though, I've tested it on a500/rp3440
>>> class machines with iosapic, but not on anything older.
>> c3000 is ok too. But I think it has iosapic as well.
>> I will try if I can connect the 715/64 and b160L, but I'm not sure
>> if I find time to do it this weekend...
>>
> C3000 is a good one since it has SuperIO, I don't remember what devices
> are behind it (IDE, USB, iirc...) though.
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 67)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled

And serial works, since I'm running on serial console.... :-)

Helge
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Subject: shmctl() broken on 64bit kernel
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This is a multi-part message in MIME format.
--------------040602070503000002080706
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
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  32bit shmctl() syscall is broken on the 64bit parisc kernel.

Testcase attached.

On 32bit kernel:
used_ids = 1, shm_tot = 131072, shm_rss = 65536, shm_swp = 0, 
swap_attempts = 0, swap_successes = 0
Number of Segments :        1
SHM allocated      :   131072 (  512 MB)
SHM used in Memory :    65536 (  256 MB)
SHM used in Swap   :        0 (    0 MB)
Unused SHM         :    65536 (  256 MB)

Same (32bit) binary on 64bit kernel:
used_ids = 1, shm_tot = 0, shm_rss = 0, shm_swp = 131072, swap_attempts 
= 0, swap_successes = 65536
Number of Segments :        1
SHM allocated      :        0 (    0 MB)
SHM used in Memory :        0 (    0 MB)
SHM used in Swap   :   131072 (  512 MB)
Unused SHM         :  -131072 ( 3584 MB)



--------------040602070503000002080706
Content-Type: text/plain;
 name="shmtest2.c"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="shmtest2.c"

#include <stdio.h>
#include <time.h>
#include <string.h>
#include <sys/ipc.h>
#include <sys/shm.h>

#include <unistd.h>

#define SHM_KEY         ((key_t) 44000)
#define MB              (1024*1024UL)

int main(int argc, char *argv[])
{ 
  int ret;
  struct shm_info buf;

  int shmid;
  unsigned long shm_size = 512 * 1024 * 1024;
  unsigned char *ptr;
  int pageSize = getpagesize();

  shmid = shmget(SHM_KEY, shm_size, IPC_CREAT | 0777);
  ptr = shmat(shmid, NULL, SHM_RND);
  shmctl(shmid, IPC_RMID, NULL);
  memset(ptr, 1, shm_size/2  );

  ret = shmctl(0, SHM_INFO, &buf);
  printf("\n");
  printf("used_ids = %d, shm_tot = %d, shm_rss = %d, shm_swp = %d, swap_attempts = %d, swap_successes = %d\n",
	buf.used_ids, buf.shm_tot, buf.shm_rss, buf.shm_swp, buf.swap_attempts, buf.swap_successes);


  printf("Number of Segments : %8d \n", buf.used_ids);
  printf("SHM allocated      : %8d (%5d MB) \n", buf.shm_tot, buf.shm_tot * pageSize/MB);
  printf("SHM used in Memory : %8d (%5d MB) \n", buf.shm_rss, buf.shm_rss * pageSize/MB);
  printf("SHM used in Swap   : %8d (%5d MB) \n", buf.shm_swp, buf.shm_swp * pageSize/MB);
  printf("Unused SHM         : %8d (%5d MB) \n", buf.shm_tot - buf.shm_rss - buf.shm_swp, ( buf.shm_tot - buf.shm_rss - buf.shm_swp ) * pageSize/MB);

  shmdt(ptr);

  return 0;
}

--------------040602070503000002080706--
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On Fri, Oct 15, 2010 at 11:04:37PM +0200, Helge Deller wrote:
>  32bit shmctl() syscall is broken on the 64bit parisc kernel.
> 

Have you had a chance to look at the patch you posted a few weeks ago
about the SHM_INFO breakage? I suspect it fixes this as well?

I think plucking the sparc64 or ppc64 structs should be ok, I don't
think there's any alignment differences offhand.

--Kyle
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From: Helge Deller <helge.deller@steuerkanzlei-deller.de>
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  On 10/15/2010 11:12 PM, Kyle McMartin wrote:
> On Fri, Oct 15, 2010 at 11:04:37PM +0200, Helge Deller wrote:
>>   32bit shmctl() syscall is broken on the 64bit parisc kernel.
>>
> Have you had a chance to look at the patch you posted a few weeks ago
> about the SHM_INFO breakage? I suspect it fixes this as well?
>
> I think plucking the sparc64 or ppc64 structs should be ok, I don't
> think there's any alignment differences offhand.

heh - I completely forgot I did sent the patch that time.... :-)
Anyway, no I didn't tested further yet (due to lack of time).

Helge
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On Fri, Oct 15, 2010 at 11:15:38PM +0200, Helge Deller wrote:
>  On 10/15/2010 11:12 PM, Kyle McMartin wrote:
> >On Fri, Oct 15, 2010 at 11:04:37PM +0200, Helge Deller wrote:
> >>  32bit shmctl() syscall is broken on the 64bit parisc kernel.
> >>
> >Have you had a chance to look at the patch you posted a few weeks ago
> >about the SHM_INFO breakage? I suspect it fixes this as well?
> >
> >I think plucking the sparc64 or ppc64 structs should be ok, I don't
> >think there's any alignment differences offhand.
> 
> heh - I completely forgot I did sent the patch that time.... :-)
> Anyway, no I didn't tested further yet (due to lack of time).
> 

Ok, I'll look at it over the weekend.

cheers, Kyle
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From - Thu Nov 08 21:06:21 2018
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From: Michal Ludvig <mludvig@logix.net.nz>
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Subject: scsi_wait_scan doesn't wait
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 Hi there,

I'm having a problem with 2.6.36-rc8+ on HP PARISC machine (HP 9000
RP3410) where I intend to wait for SCSI enumeration during boot before
LVM2 kicks in and attempts to activate the root volume. I modprobe
scsi_wait_scan in the initramdisk before lvm2 script is run. However the
modprobe doesn't wait. I'm on Debian testing, fwiw.

[...]
[    2.368000] Freeing unused kernel memory: 252k freed
Loading, please wait...
[    3.028000] udev: starting version 160
[    4.104000] SCSI subsystem initialized
[    4.592000] sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 69
[    4.668000] sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
[    4.700000] sym0: SCSI BUS has been reset.
[    4.708000] scsi0 : sym-2.2.3
[    4.868000] sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 70
[    4.868000] sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
[    4.904000] sym1: SCSI BUS has been reset.
[    4.908000] scsi1 : sym-2.2.3
[    5.068000] sym2: <1010-66> rev 0x1 at pci 0000:80:01.0 irq 72
[    5.072000] sym2: No NVRAM, ID 7, Fast-80, LVD, parity checking
[    5.108000] sym2: SCSI BUS has been reset.
[    5.112000] scsi2 : sym-2.2.3
[    5.276000] sym3: <1010-66> rev 0x1 at pci 0000:80:01.1 irq 73
[    5.276000] sym3: No NVRAM, ID 7, Fast-80, LVD, parity checking
[    5.312000] sym3: SCSI BUS has been reset.
[    5.316000] scsi3 : sym-2.2.3
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... SCSI: Waiting to settle...

######### here comes modprobe scsi_wait_scan #########

SCSI: done
done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top
... [    6.496000] device-mapper: uevent: version 1.0.3
[    6.496000] device-mapper: ioctl: 4.18.0-ioctl (2010-06-29)
initialised: dm-devel@redhat.com
  Volume group "lethal" not found
  Skipping volume group lethal
Unable to find LVM volume lethal/root
done.
Begin: Waiting for root file system ... [    7.728000] scsi 0:0:0:0:
Direct-Access     HP 36.4G ST336754LC       HPC2 PQ: 0 ANSI: 3
[    7.728000] scsi target0:0:0: tagged command queuing enabled, command
queue depth 16.
[    7.728000] scsi target0:0:0: Beginning Domain Validation
[    7.740000] scsi target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5
ns, offset 31)
[    7.748000] scsi target0:0:0: Ending Domain Validation
[    7.752000] scsi 0:0:1:0: Direct-Access     HP 36.4G MAS3367NC
 HPC3 PQ: 0 ANSI: 3
[    7.752000] scsi target0:0:1: tagged command queuing enabled, command
queue depth 16.
[    7.760000] scsi target0:0:1: Beginning Domain Validation
[    7.764000] scsi target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5
ns, offset 31)
[    7.772000] scsi target0:0:1: Ending Domain Validation
[   11.864000] sd 0:0:0:0: [sda] 71132960 512-byte logical blocks: (36.4
GB/33.9 GiB)
[   11.864000] sd 0:0:1:0: [sdb] 71132960 512-byte logical blocks: (36.4
GB/33.9 GiB)
[   11.868000] sd 0:0:0:0: [sda] Write Protect is off
[   11.892000] sd 0:0:1:0: [sdb] Write Protect is off
[   11.900000] sd 0:0:0:0: [sda] Write cache: enabled, read cache:
enabled, supports DPO and FUA
[   11.900000] sd 0:0:1:0: [sdb] Write cache: enabled, read cache:
enabled, supports DPO and FUA
[   11.924000]  sda: unknown partition table
[   11.940000]  sdb: sdb1 sdb2 sdb3
[   11.944000] sd 0:0:0:0: [sda] Attached SCSI disk
[   11.964000] sd 0:0:1:0: [sdb] Attached SCSI disk
done.
Gave up waiting for root device.  Common problems:
 - Boot args (cat /proc/cmdline)
   - Check rootdelay= (did the system wait long enough?)
   - Check root= (did the system wait for the right device?)
 - Missing modules (cat /proc/modules; ls /dev)
ALERT!  /dev/mapper/lethal-root does not exist.  Dropping to a shell!

Apparently /dev/sda and /dev/sdb were discovered long after
scsi_wait_scan was loaded.

Here are the relevant modules:
[...]
ext3                  203543  2
jbd                    63990  1 ext3
dm_mod                112954  9
scsi_wait_scan           983  0
zalon7xx               38131  0
lasi700                 2427  0
53c700                 39777  1 lasi700
hilkbd                  5901  0
sd_mod                 49383  3
crc_t10dif              1564  1 sd_mod
sym53c8xx             104303  2
scsi_transport_spi     34731  3 zalon7xx,53c700,sym53c8xx
scsi_mod              193802  7
libata,zalon7xx,lasi700,53c700,sd_mod,sym53c8xx,scsi_transport_spi

When I unset CONFIG_SCSI_SCAN_ASYNC it works just fine and all the disks
are found in time for LVM.

Is that a bug in the SCSI driver? Or am I doing something wrong? It's
not a recent regression, at least 2.6.35 behaves the same on that machine.

Thanks!

Michal
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From - Thu Nov 08 21:06:21 2018
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On Mon, Oct 18, 2010 at 11:27 PM, Michal Ludvig <mludvig@logix.net.nz> wrote:
> I'm having a problem with 2.6.36-rc8+ on HP PARISC machine (HP 9000
> RP3410) where I intend to wait for SCSI enumeration during boot before
> LVM2 kicks in and attempts to activate the root volume. I modprobe
> scsi_wait_scan in the initramdisk before lvm2 script is run. However the
> modprobe doesn't wait. I'm on Debian testing, fwiw.

If you're interested in helping, the best thing you could do is back
up to a kernel that works and then try to track down what commit broke
the wait scan. It's a bit tedious, but fairly easy.

Cheers,
Carlos.
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  On 10/20/2010 12:04 PM, Carlos O'Donell wrote:
> On Mon, Oct 18, 2010 at 11:27 PM, Michal Ludvig<mludvig@logix.net.nz>  wrote:
>> I'm having a problem with 2.6.36-rc8+ on HP PARISC machine (HP 9000
>> RP3410) where I intend to wait for SCSI enumeration during boot before
>> LVM2 kicks in and attempts to activate the root volume. I modprobe
>> scsi_wait_scan in the initramdisk before lvm2 script is run. However the
>> modprobe doesn't wait. I'm on Debian testing, fwiw.
> If you're interested in helping, the best thing you could do is back
> up to a kernel that works and then try to track down what commit broke
> the wait scan. It's a bit tedious, but fairly easy.
Yeah, I know. However a kernel rebuild takes nearly 2 hours on that 
machine so it may be a couple of months before I find the commit ;-) 
I'll see if I can come up with an automated process for that.

Michal
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  On 10/21/2010 11:11 AM, Michal Ludvig wrote:
>  On 10/20/2010 12:04 PM, Carlos O'Donell wrote:
>> On Mon, Oct 18, 2010 at 11:27 PM, Michal 
>> Ludvig<mludvig@logix.net.nz>  wrote:
>>> I'm having a problem with 2.6.36-rc8+ on HP PARISC machine (HP 9000
>>> RP3410) where I intend to wait for SCSI enumeration during boot before
>>> LVM2 kicks in and attempts to activate the root volume. I modprobe
>>> scsi_wait_scan in the initramdisk before lvm2 script is run. However 
>>> the
>>> modprobe doesn't wait. I'm on Debian testing, fwiw.
>> If you're interested in helping, the best thing you could do is back
>> up to a kernel that works and then try to track down what commit broke
>> the wait scan. It's a bit tedious, but fairly easy.
> Yeah, I know. However a kernel rebuild takes nearly 2 hours on that 
> machine so it may be a couple of months before I find the commit ;-) 
> I'll see if I can come up with an automated process for that.

Hi Michal,

I'd propose that you use a cross-compiler (i686 to hppa) instead.
Then you can TFTP-boot the built kernel from your PC.
This is what I do, and it speeds up everything a lot and it's not too 
hard to set it up.

Helge
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From - Thu Nov 08 21:06:21 2018
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New commits:
commit 338e4fab3d41aa14264e10ce505a7c908633cdad
Author: Julia Lawall <julia@diku.dk>
Date:   Wed Oct 20 15:55:45 2010 -0700

    drivers/char/agp/parisc-agp.c: eliminate memory leak
    
    alloc_pci_dev allocates some memory, so that memory should be freed before
    leaving the function in an error case.
    
    A simplified version of the semantic match that finds this problem is:
    (http://coccinelle.lip6.fr/)
    
    // <smpl>
    @r exists@
    local idexpression x;
    expression E;
    identifier f1;
    iterator I;
    @@
    
    x = alloc_pci_dev(...);
    <... when != x
         when != true (x == NULL || ...)
         when != if (...) { <+...x...+> }
         when != I (...) { <+...x...+> }
    (
     x == NULL
    |
     x == E
    |
     x->f1
    )
    ...>
    * return ...;
    // </smpl>
    
    Signed-off-by: Julia Lawall <julia@diku.dk>
    Dan Carpenter <error27@gmail.com>
    Dave Airlie <airlied@linux.ie>
    Cc: Helge Deller <deller@gmx.de>
    Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

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On Fri, Sep 10, 2010 at 01:47:59PM +0300, Phil Carmody wrote:
> Having many dozens of modules, the searches down the linked
> list of sections would dominate the lookup time, dwarfing
> any savings from the binary search within the section.
> 
> A simple move-to-front optimisation exploits the commonality
> of the code paths taken, and in simple real-world tests
> on other architectures reduced the number of steps in the
> search to barely more than 1.
> 

Applied, thanks.

--kyle
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New commits:
commit 650a35f868f809aade56ef960d8a465f57ac74e2
Author: Guy Martin <gmsoft@tuxicoman.be>
Date:   Mon Jun 14 19:24:41 2010 +0200

    parisc: add tty driver to PDC console
    
    This patch adds a tty driver to the PDC console. It allows the use
    of ports not supported by linux as a console (e.g. serial port on
    C8000.) The tty driver will not register the ttyB device if PDC console
    driver has been unregistered. This happens when the early printk
    console is disabled as it has not been selected as the primary console.
    
    Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit f8301041d7bdca3197d718518242eeba0c75352f
Author: Joe Perches <joe@perches.com>
Date:   Mon May 31 20:23:16 2010 -0700

    drivers/parisc/iosapic.c: Remove unnecessary kzalloc cast
    
    Convert kzalloc to kcalloc
    
    Signed-off-by: Joe Perches <joe@perches.com>
    Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit b97680c419b75b0c2cf6837a9f268e2ecbaf50f6
Author: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date:   Tue Jun 29 16:29:04 2010 +0900

    parisc: remove homegrown L1_CACHE_ALIGN macro
    
    Let's use the standard L1_CACHE_ALIGN macro instead.
    
    Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit 2da83b90bbbac586fca2735f7da21966a31ec33f
Author: Christian Dietrich <qy03fugy@stud.informatik.uni-erlangen.de>
Date:   Mon Sep 6 16:36:06 2010 +0200

    arch/parisc: Removing undead ifdef CONFIG_PA20
    
    The CONFIG_PA20 ifdef isn't necessary at this point, because it is
    checked in an outer ifdef level already and has no effect here.
    
    Signed-off-by: Christian Dietrich <qy03fugy@stud.informatik.uni-erlangen.de>
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit b1b1d4a6f244eb9513f006a188f7ed30d5014de5
Author: Phil Carmody <ext-phil.2.carmody@nokia.com>
Date:   Fri Sep 10 13:47:59 2010 +0300

    parisc: unwind - optimise linked-list searches for modules
    
    Having many dozens of modules, the searches down the linked
    list of sections would dominate the lookup time, dwarfing
    any savings from the binary search within the section.
    
    A simple move-to-front optimisation exploits the commonality
    of the code paths taken, and in simple real-world tests
    on other architectures reduced the number of steps in the
    search to barely more than 1.
    
    Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

commit f720817700de48a57f54535a5dd9783cca2d2d6b
Author: matt mooney <mfm@muteddisk.com>
Date:   Wed Sep 22 23:51:05 2010 -0700

    parisc: change to new flag variable
    
    Replace EXTRA_CFLAGS with ccflags-y.
    
    Signed-off-by: matt mooney <mfm@muteddisk.com>
    Signed-off-by: Kyle McMartin <kyle@redhat.com>

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Hi

I have a C8000 workstation with one PA8800 900MHz CPU (the motherboard has 
two sockets), I installed Linux via serial console on it and it seems to 
be running quite fine (I had to plug a PCI serial card because Linux 
doesn't recognize the on-board serial ports or videocard).

When I inserted anober PA8800 900MHz CPU (taken from another workstation) 
to the second socket on the motherboard, the boot firmware writes a 
warning "Too many CPUs for this system.", drops into the boot menu and 
refuses to load an operating system.

Do you have some idea how to solve it? I.e. switch something in the 
firmware, load new firmware (I have FW 2.13 BMC 02.32), or get some tool 
from HP that can allow the second processor on this workstation?

(note, this is not Linux kernel problem at all because the firmware 
doesn't even start Linux)

Mikulas
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On Fri, Oct 22, 2010 at 10:07 AM, Mikulas Patocka
<mikulas@artax.karlin.mff.cuni.cz> wrote:
> I have a C8000 workstation with one PA8800 900MHz CPU (the motherboard has
> two sockets), I installed Linux via serial console on it and it seems to
> be running quite fine (I had to plug a PCI serial card because Linux
> doesn't recognize the on-board serial ports or videocard).
>
> When I inserted anober PA8800 900MHz CPU (taken from another workstation)
> to the second socket on the motherboard, the boot firmware writes a
> warning "Too many CPUs for this system.", drops into the boot menu and
> refuses to load an operating system.
>
> Do you have some idea how to solve it? I.e. switch something in the
> firmware, load new firmware (I have FW 2.13 BMC 02.32), or get some tool
> from HP that can allow the second processor on this workstation?
>
> (note, this is not Linux kernel problem at all because the firmware
> doesn't even start Linux)

AFAIK you can't add a second CPU without an HP technician enabling the
firmware for a second CPU.

The same goes for enabling additional PCI slots.

Cheers,
Carlos.
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From - Thu Nov 08 21:06:21 2018
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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
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On Fri, 22 Oct 2010, Carlos O'Donell wrote:

> On Fri, Oct 22, 2010 at 10:07 AM, Mikulas Patocka
> <mikulas@artax.karlin.mff.cuni.cz> wrote:
> > I have a C8000 workstation with one PA8800 900MHz CPU (the motherboard has
> > two sockets), I installed Linux via serial console on it and it seems to
> > be running quite fine (I had to plug a PCI serial card because Linux
> > doesn't recognize the on-board serial ports or videocard).
> >
> > When I inserted anober PA8800 900MHz CPU (taken from another workstation)
> > to the second socket on the motherboard, the boot firmware writes a
> > warning "Too many CPUs for this system.", drops into the boot menu and
> > refuses to load an operating system.
> >
> > Do you have some idea how to solve it? I.e. switch something in the
> > firmware, load new firmware (I have FW 2.13 BMC 02.32), or get some tool
> > from HP that can allow the second processor on this workstation?
> >
> > (note, this is not Linux kernel problem at all because the firmware
> > doesn't even start Linux)
> 
> AFAIK you can't add a second CPU without an HP technician enabling the
> firmware for a second CPU.
> 
> The same goes for enabling additional PCI slots.
> 
> Cheers,
> Carlos.

And is there some hack that enables it?

It looks quite dishonest to me when the machine is advertised as capable 
of two dual-core CPUs, 32GB RAM, 4 PCI-X slots ... and you get this 
advertised capability only if you buy expensive support contract :-(

Mikulas
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On Sat, Oct 23, 2010 at 5:21 AM, Mikulas Patocka
<mikulas@artax.karlin.mff.cuni.cz> wrote:
> On Fri, 22 Oct 2010, Carlos O'Donell wrote:
>> AFAIK you can't add a second CPU without an HP technician enabling the
>> firmware for a second CPU.
>>
>> The same goes for enabling additional PCI slots.
>>
>> Cheers,
>> Carlos.
>
> And is there some hack that enables it?
>
> It looks quite dishonest to me when the machine is advertised as capable
> of two dual-core CPUs, 32GB RAM, 4 PCI-X slots ... and you get this
> advertised capability only if you buy expensive support contract :-(

I know of no hack.

It is not dishonest, the original purchase contract for the machine
probably said "1 active CPU slot" and "1 active PCI-X slot."

Cheers,
Carlos.
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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
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Subject: False advertising (was: C8000 cpu upgrade problem)
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On Sat, 23 Oct 2010, Carlos O'Donell wrote:

> On Sat, Oct 23, 2010 at 5:21 AM, Mikulas Patocka
> <mikulas@artax.karlin.mff.cuni.cz> wrote:
> > On Fri, 22 Oct 2010, Carlos O'Donell wrote:
> >> AFAIK you can't add a second CPU without an HP technician enabling the
> >> firmware for a second CPU.
> >>
> >> The same goes for enabling additional PCI slots.
> >>
> >> Cheers,
> >> Carlos.
> >
> > And is there some hack that enables it?
> >
> > It looks quite dishonest to me when the machine is advertised as capable
> > of two dual-core CPUs, 32GB RAM, 4 PCI-X slots ... and you get this
> > advertised capability only if you buy expensive support contract :-(
> 
> I know of no hack.
> 
> It is not dishonest, the original purchase contract for the machine
> probably said "1 active CPU slot" and "1 active PCI-X slot."
> 
> Cheers,
> Carlos.

It looks like false advertising to me. It is immoral (and in many 
countries illegal) to advertise the product having some capabilities and 
then selling the product not having the capabilities. Purchase contract is 
irelevant, what is relevant are the public statements about the product 
and the real status of the product.

HP claims that c8000 workstation is extendible to two processors. Such 
claims are implicit (feature lists, listing up to two dual core 1.1GHz 
processors) and explicit (citing 
http://www.hp.com/workstations/white_papers/docs/hp_workstation_c8000_po.pdf 
"Robust expansion capabilities, including two processor sockets and four 
disk bays, let you grow and configure the system as needed").

HP sells a computer that it claims to be c8000 and that the user cannot 
expand to two processors, contrary to the claims in the whitepaper.

These claims really deceive users, both me and the person who sold me the 
CPU were deceived by them.

Anyone living in the US and wanting to file a complain to FTC about these 
computers falsely advertised as expandable? :)

Mikulas
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From: Matt Turner <mattst88@gmail.com>
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On Sat, Oct 23, 2010 at 7:22 AM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> On Sat, Oct 23, 2010 at 5:21 AM, Mikulas Patocka
> <mikulas@artax.karlin.mff.cuni.cz> wrote:
>> On Fri, 22 Oct 2010, Carlos O'Donell wrote:
>>> AFAIK you can't add a second CPU without an HP technician enabling the
>>> firmware for a second CPU.
>>>
>>> The same goes for enabling additional PCI slots.
>>>
>>> Cheers,
>>> Carlos.
>>
>> And is there some hack that enables it?
>>
>> It looks quite dishonest to me when the machine is advertised as capable
>> of two dual-core CPUs, 32GB RAM, 4 PCI-X slots ... and you get this
>> advertised capability only if you buy expensive support contract :-(
>
> I know of no hack.
>
> It is not dishonest, the original purchase contract for the machine
> probably said "1 active CPU slot" and "1 active PCI-X slot."
>
> Cheers,
> Carlos.

It _is_ dishonest, and deceptive at that. When was the last time you
bought a multisocket system and couldn't add a second processor
because you needed a support contract? I've never encountered such a
thing and I've got multisocket x86, Alpha, and SPARC systems.

This whole license-to-use-hardware thing is bullshit. Mikulas bought
the hardware, and thus he should be able to use it. I'm struggling to
find any information about this problem online. I can't even find
anyone else who has reported that adding a second CPU doesn't just
work.

Are we absolutely sure you've got to jump through some licensing
bullshit to enable the CPU? Maybe it's just a missed setting in PDC?

> The same goes for enabling additional PCI slots.

You've got to be kidding me.

I'd been planning to grab a cheap C8000 and help Linux/PARISC. But no.
I'll never use hardware like this on principle.

Matt
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: C8000 cpu upgrade problem
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> I have a C8000 workstation with one PA8800 900MHz CPU (the motherboard has 
> two sockets), I installed Linux via serial console on it and it seems to 
> be running quite fine (I had to plug a PCI serial card because Linux 
> doesn't recognize the on-board serial ports or videocard).
> 
> When I inserted anober PA8800 900MHz CPU (taken from another workstation) 
> to the second socket on the motherboard, the boot firmware writes a 
> warning "Too many CPUs for this system.", drops into the boot menu and 
> refuses to load an operating system.

It looks like it should be possible to add a second processor.  See
Technical Reference Guide HP workstation c8000, Document Part Number:
5969-3188.

Did you install second CPU power module?

> Do you have some idea how to solve it? I.e. switch something in the 
> firmware, load new firmware (I have FW 2.13 BMC 02.32), or get some tool 
> from HP that can allow the second processor on this workstation?

I don't have any specific knowledge about the c8000.  It appears CPUs
are configured in the BCH configuration menu with the CPUconfig command.
Based on my experience with rp3440, you have to do a hard reboot
after configuring a CPU.  If a CPU gets deconfigured or it doesn't appear
when you type CPUconfig, there is probably a hardware problem.

2.13 seems to be latest firmware.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, 23 Oct 2010, John David Anglin wrote:

> > I have a C8000 workstation with one PA8800 900MHz CPU (the motherboard has 
> > two sockets), I installed Linux via serial console on it and it seems to 
> > be running quite fine (I had to plug a PCI serial card because Linux 
> > doesn't recognize the on-board serial ports or videocard).
> > 
> > When I inserted anober PA8800 900MHz CPU (taken from another workstation) 
> > to the second socket on the motherboard, the boot firmware writes a 
> > warning "Too many CPUs for this system.", drops into the boot menu and 
> > refuses to load an operating system.
> 
> It looks like it should be possible to add a second processor.  See
> Technical Reference Guide HP workstation c8000, Document Part Number:
> 5969-3188.

I used this guide when adding the new CPU. I bought the torx screwdriver 
and the hex tool (as described in the guide) from the local hardware 
store.

> Did you install second CPU power module?

Yes.

> > Do you have some idea how to solve it? I.e. switch something in the 
> > firmware, load new firmware (I have FW 2.13 BMC 02.32), or get some tool 
> > from HP that can allow the second processor on this workstation?
> 
> I don't have any specific knowledge about the c8000.  It appears CPUs
> are configured in the BCH configuration menu with the CPUconfig command.
> Based on my experience with rp3440, you have to do a hard reboot
> after configuring a CPU.  If a CPU gets deconfigured or it doesn't appear
> when you type CPUconfig, there is probably a hardware problem.
> 
> 2.13 seems to be latest firmware.
> 
> Dave

It showed "WARNING: Too many CPUs for this system." and the new cpu wasn't 
shown in "IN PR" command. Also, "BO" command refused to boot becuase of 
the warning.

Mikulas
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On Sat, 23 Oct 2010, Matt Turner wrote:

> On Sat, Oct 23, 2010 at 7:22 AM, Carlos O'Donell
> <carlos@systemhalted.org> wrote:
> > On Sat, Oct 23, 2010 at 5:21 AM, Mikulas Patocka
> > <mikulas@artax.karlin.mff.cuni.cz> wrote:
> >> On Fri, 22 Oct 2010, Carlos O'Donell wrote:
> >>> AFAIK you can't add a second CPU without an HP technician enabling the
> >>> firmware for a second CPU.
> >>>
> >>> The same goes for enabling additional PCI slots.
> >>>
> >>> Cheers,
> >>> Carlos.
> >>
> >> And is there some hack that enables it?
> >>
> >> It looks quite dishonest to me when the machine is advertised as capable
> >> of two dual-core CPUs, 32GB RAM, 4 PCI-X slots ... and you get this
> >> advertised capability only if you buy expensive support contract :-(
> >
> > I know of no hack.
> >
> > It is not dishonest, the original purchase contract for the machine
> > probably said "1 active CPU slot" and "1 active PCI-X slot."
> >
> > Cheers,
> > Carlos.
> 
> It _is_ dishonest, and deceptive at that. When was the last time you
> bought a multisocket system and couldn't add a second processor
> because you needed a support contract? I've never encountered such a
> thing and I've got multisocket x86, Alpha, and SPARC systems.
> 
> This whole license-to-use-hardware thing is bullshit. Mikulas bought
> the hardware, and thus he should be able to use it. I'm struggling to
> find any information about this problem online. I can't even find
> anyone else who has reported that adding a second CPU doesn't just
> work.

I searched extensively (first, I also thought that it's my fault and I've 
forgotten something) and found this:

http://forums13.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1287849831841+28353475&threadId=1251754 
--- some person replaces a mainboard, gets warnings about invalid serial 
number, too many CPUs (the same as me), CPU speed limit exceeded, 6GB 
memory limit exceeded. The advice was to contact HP to change the serial 
numbers :-(

http://sql.ru/forum/actualthread.aspx?tid=726002 --- the same warning, in 
Russian, no response

http://3000newswire.blogs.com/3000_newswire/2007/08/programs-off-li.html
--- considerations about some programs that can remove limits, nothing 
specific

http://3000newswire.blogs.com/3000_newswire/2007/08/helpful-program.html 
--- some more moaning about HP locking some diagnostic programs

http://3000newswire.blogs.com/3000_newswire/2010/10/indie-resets-of-3000-system-ids-still-available.html 
--- some company that can supposedly reset the serial numbers and allow 
upgrades. The only problem is that sending the workstation to them is 
likely more expensive than the price of the workstation itself :-(

> Are we absolutely sure you've got to jump through some licensing
> bullshit to enable the CPU? Maybe it's just a missed setting in PDC?

I went through the whole PDC menu, didn't find anything. I tried to clear 
all logs, reset it to defaults, etc., but no help.

> > The same goes for enabling additional PCI slots.
> 
> You've got to be kidding me.
> 
> I'd been planning to grab a cheap C8000 and help Linux/PARISC. But no.
> I'll never use hardware like this on principle.
> 
> Matt

I wouldn't buy even a laptop from HP after this experience. What would I 
have to do if I needed a bigger hard drive or more memory? Be forced to 
call HP "award winning" support, pay for the work that I can do myself and 
be forced to upgrade it with overpriced "original" parts?

BTW. I added another 1GB memory to that C8000 workstation (it had 2GB 
before) and it works. But knowing that there may be memory limits in the 
firmware too, I'm just scared how much can I buy and add before hitting 
some of them :-( The leaflet says that the maximum is 32GB, but we know 
that it doesn't tell the truth about the number of CPUs.

Mikulas
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On Sat, 2010-10-23 at 16:46 +0200, Mikulas Patocka wrote:
> 
> On Sat, 23 Oct 2010, Carlos O'Donell wrote:
> 
> > On Sat, Oct 23, 2010 at 5:21 AM, Mikulas Patocka
> > <mikulas@artax.karlin.mff.cuni.cz> wrote:
> > > On Fri, 22 Oct 2010, Carlos O'Donell wrote:
> > >> AFAIK you can't add a second CPU without an HP technician enabling the
> > >> firmware for a second CPU.
> > >>
> > >> The same goes for enabling additional PCI slots.
> > >>
> > >> Cheers,
> > >> Carlos.
> > >
> > > And is there some hack that enables it?
> > >
> > > It looks quite dishonest to me when the machine is advertised as capable
> > > of two dual-core CPUs, 32GB RAM, 4 PCI-X slots ... and you get this
> > > advertised capability only if you buy expensive support contract :-(
> > 
> > I know of no hack.
> > 
> > It is not dishonest, the original purchase contract for the machine
> > probably said "1 active CPU slot" and "1 active PCI-X slot."
> > 
> > Cheers,
> > Carlos.
> 
> It looks like false advertising to me. It is immoral (and in many 
> countries illegal) to advertise the product having some capabilities and 
> then selling the product not having the capabilities. Purchase contract is 
> irelevant, what is relevant are the public statements about the product 
> and the real status of the product.

It's fairly standard for the enterprise space:  Both HP and IBM actually
sell boxes fully loaded but disable unpaid for capabilities in the
firmware (i.e. sell you a 2-cpu box that really contains 4 cpus so they
then sell a firmware upgrade as two extra cpus); enterprise users
actually like the convenience of not having to haul away and replace the
box.

> HP claims that c8000 workstation is extendible to two processors. Such 
> claims are implicit (feature lists, listing up to two dual core 1.1GHz 
> processors) and explicit (citing 
> http://www.hp.com/workstations/white_papers/docs/hp_workstation_c8000_po.pdf 
> "Robust expansion capabilities, including two processor sockets and four 
> disk bays, let you grow and configure the system as needed").

My garage is extensible too ... but I'd still have to pay a builder to
build the extension.

> HP sells a computer that it claims to be c8000 and that the user cannot 
> expand to two processors, contrary to the claims in the whitepaper.

The whitepaper only claims they are extensible (which they are) it
doesn't claim the user can do the extension (because they can't).

> These claims really deceive users, both me and the person who sold me the 
> CPU were deceived by them.
> 
> Anyone living in the US and wanting to file a complain to FTC about these 
> computers falsely advertised as expandable? :)

The FTC would take the view that it's standard industry practise and
that you didn't do due diligence ... 

However, why don't you try what we usually do?  That's ask HP nicely
(via someone in their linux department) for the firmware upgrade; it's
mostly worked in the past ... assuming you haven't antagonised them too
much by calling them liars and cheats, that is ...

James


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Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>,
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On Sat, Oct 23, 2010 at 12:57 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Sat, 2010-10-23 at 16:46 +0200, Mikulas Patocka wrote:
>>
>> On Sat, 23 Oct 2010, Carlos O'Donell wrote:
>>
>> > On Sat, Oct 23, 2010 at 5:21 AM, Mikulas Patocka
>> > <mikulas@artax.karlin.mff.cuni.cz> wrote:
>> > > On Fri, 22 Oct 2010, Carlos O'Donell wrote:
>> > >> AFAIK you can't add a second CPU without an HP technician enabl=
ing the
>> > >> firmware for a second CPU.
>> > >>
>> > >> The same goes for enabling additional PCI slots.
>> > >>
>> > >> Cheers,
>> > >> Carlos.
>> > >
>> > > And is there some hack that enables it?
>> > >
>> > > It looks quite dishonest to me when the machine is advertised as=
 capable
>> > > of two dual-core CPUs, 32GB RAM, 4 PCI-X slots ... and you get t=
his
>> > > advertised capability only if you buy expensive support contract=
 :-(
>> >
>> > I know of no hack.
>> >
>> > It is not dishonest, the original purchase contract for the machin=
e
>> > probably said "1 active CPU slot" and "1 active PCI-X slot."
>> >
>> > Cheers,
>> > Carlos.
>>
>> It looks like false advertising to me. It is immoral (and in many
>> countries illegal) to advertise the product having some capabilities=
 and
>> then selling the product not having the capabilities. Purchase contr=
act is
>> irelevant, what is relevant are the public statements about the prod=
uct
>> and the real status of the product.
>
> It's fairly standard for the enterprise space: =A0Both HP and IBM act=
ually
> sell boxes fully loaded but disable unpaid for capabilities in the
> firmware (i.e. sell you a 2-cpu box that really contains 4 cpus so th=
ey
> then sell a firmware upgrade as two extra cpus); enterprise users
> actually like the convenience of not having to haul away and replace =
the
> box.
>
>> HP claims that c8000 workstation is extendible to two processors. Su=
ch
>> claims are implicit (feature lists, listing up to two dual core 1.1G=
Hz
>> processors) and explicit (citing
>> http://www.hp.com/workstations/white_papers/docs/hp_workstation_c800=
0_po.pdf
>> "Robust expansion capabilities, including two processor sockets and =
four
>> disk bays, let you grow and configure the system as needed").
>
> My garage is extensible too ... but I'd still have to pay a builder t=
o
> build the extension.

You forgot the part where you have to buy a support contract with the
builder for a one-off project.

Oh, and the part where you're more than capable of doing the building
yourself, but you can't because the builder hasn't approved the lumber
you bought to work with your particular mode of garage.

>> HP sells a computer that it claims to be c8000 and that the user can=
not
>> expand to two processors, contrary to the claims in the whitepaper.
>
> The whitepaper only claims they are extensible (which they are) it
> doesn't claim the user can do the extension (because they can't).
>
>> These claims really deceive users, both me and the person who sold m=
e the
>> CPU were deceived by them.
>>
>> Anyone living in the US and wanting to file a complain to FTC about =
these
>> computers falsely advertised as expandable? :)
>
> The FTC would take the view that it's standard industry practise and
> that you didn't do due diligence ...
>
> However, why don't you try what we usually do? =A0That's ask HP nicel=
y
> (via someone in their linux department) for the firmware upgrade; it'=
s
> mostly worked in the past ... assuming you haven't antagonised them t=
oo
> much by calling them liars and cheats, that is ...

Poor HP.

Seriously though. From a glance, the C8000 seems to be the most
capable PA-RISC system for someone who wants to help with
Linux-on-PARISC. Clearly, people like upgrading (and being able to
upgrade) their computers. If I were to buy a C8000 I'd be interested
in figuring out how to find a second CPU, add more RAM, and install
another PCI card. But these debilitating restrictions prevent any of
this.

So, my question is, if you and Carlos knew about this previously
(which I assume you did by your responses, but I may be wrong) then
why can I not find this information anywhere on parisc-linux.org or in
the appropriate mailing list archives?

Matt
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Sat, 23 Oct 2010, Mikulas Patocka wrote:

> It showed "WARNING: Too many CPUs for this system." and the new cpu wasn't 
> shown in "IN PR" command. Also, "BO" command refused to boot becuase of 
> the warning.

I would check system LEDs to see if a fault is indicated.  Also, look
for relevant errors in the service error logs.

Are both processor modules same speed and cache?

The following suggests Carlos is correct:

http://forums13.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1287851022683+28353475&threadId=1251754

In reviewing the technical reference, I don't see any warning that
upgrading/replacing a processor module may require a HP technician
to reset the system configuration.

In the section on replacing the system board, it says to use the ss_update
utility in the BCH Service menu to reset the serial number.  Is the MFG
menu accessible?  There may be some hidden commands to setup config.

It appears that processors have to be installed in the correct slot
since the BCH has the following warning:
WARNING: Processors are not installed in the correct order.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:22 2018
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On Sat, 23 Oct 2010, John David Anglin wrote:

> On Sat, 23 Oct 2010, Mikulas Patocka wrote:
> 
> > It showed "WARNING: Too many CPUs for this system." and the new cpu wasn't 
> > shown in "IN PR" command. Also, "BO" command refused to boot becuase of 
> > the warning.
> 
> I would check system LEDs to see if a fault is indicated.  Also, look
> for relevant errors in the service error logs.

LEDs 2 and 3 are red --- just like a normal boot, when the machine is 
waiting in the PDC menu for the boot command.

> Are both processor modules same speed and cache?

Yes.

> The following suggests Carlos is correct:
> 
> http://forums13.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1287851022683+28353475&threadId=1251754

Yes, I found it too.

> In reviewing the technical reference, I don't see any warning that
> upgrading/replacing a processor module may require a HP technician
> to reset the system configuration.
> 
> In the section on replacing the system board, it says to use the ss_update
> utility in the BCH Service menu to reset the serial number.  Is the MFG
> menu accessible?  There may be some hidden commands to setup config.

There is a service menu, but no mfg menu and no ss_update command.

Interesting ... "mfg" gives "ERROR: Unsupported command" while any other 
bad commands gives "ERROR: Unknown command".

So there is something magic abouth that "mfg" menu, but it's inaccessible.

> It appears that processors have to be installed in the correct slot
> since the BCH has the following warning:
> WARNING: Processors are not installed in the correct order.
>
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Mikulas
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> > In the section on replacing the system board, it says to use the ss_update
> > utility in the BCH Service menu to reset the serial number.  Is the MFG
> > menu accessible?  There may be some hidden commands to setup config.
> 
> There is a service menu, but no mfg menu and no ss_update command.
> 
> Interesting ... "mfg" gives "ERROR: Unsupported command" while any other 
> bad commands gives "ERROR: Unknown command".
> 
> So there is something magic abouth that "mfg" menu, but it's inaccessible.

The mfg menu was shown in an online document about setting up the c8000.

I would guess that ss_update command and mfg menu disappear after
the unit has been configured.  Probably, the configuration data needs
to be erased/reset to restore the menu.  Possibly, reflashing the
bch firmware would do it, or maybe there is a ODE command to reset
the config.

You might try downloading the firmware update.  At least for the
rp3440, one burns an ODE CD.  Then, one boots the CD and uses various
ODE commands to flash the firmware.  There was definitely a lot
more stuff on the CD than just the utilities to flash the firmware.
Of course, one mistake and you brick the system.  It would probably
take HP specific JTAG tools to recover.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: False advertising (was: C8000 cpu upgrade problem)
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> > It looks like false advertising to me. It is immoral (and in many 
> > countries illegal) to advertise the product having some capabilities and 
> > then selling the product not having the capabilities. Purchase contract is 
> > irelevant, what is relevant are the public statements about the product 
> > and the real status of the product.
> 
> It's fairly standard for the enterprise space:  Both HP and IBM actually
> sell boxes fully loaded but disable unpaid for capabilities in the
> firmware (i.e. sell you a 2-cpu box that really contains 4 cpus so they
> then sell a firmware upgrade as two extra cpus); enterprise users
> actually like the convenience of not having to haul away and replace the
> box.

This is a different case. You can't accuse a contractor if you order two 
CPUs and get four :)

> > HP claims that c8000 workstation is extendible to two processors. Such 
> > claims are implicit (feature lists, listing up to two dual core 1.1GHz 
> > processors) and explicit (citing 
> > http://www.hp.com/workstations/white_papers/docs/hp_workstation_c8000_po.pdf 
> > "Robust expansion capabilities, including two processor sockets and four 
> > disk bays, let you grow and configure the system as needed").
> 
> My garage is extensible too ... but I'd still have to pay a builder to
> build the extension.

... or you can build the garage extension yourself. Obviously, you lose 
guaranty if you do, but you can still do it.

If I take the analogy with a garage ... the garage builder puts a sensor 
in your garage that measures how big the garage is (and it is deliberately 
welded hard so that it's hard to remove). When you extend the garage, the 
sensor notices the nonstandard size and locks the garage door so that you 
can't use the garage.

> > HP sells a computer that it claims to be c8000 and that the user cannot 
> > expand to two processors, contrary to the claims in the whitepaper.
> 
> The whitepaper only claims they are extensible (which they are) it
> doesn't claim the user can do the extension (because they can't).

It says "lets YOU grow and configure the system as needed". There is that 
pronoun "YOU".

> > These claims really deceive users, both me and the person who sold me the 
> > CPU were deceived by them.
> > 
> > Anyone living in the US and wanting to file a complain to FTC about these 
> > computers falsely advertised as expandable? :)
> 
> The FTC would take the view that it's standard industry practise and
> that you didn't do due diligence ... 

I'm interested ... does HP anywhere in its materials mention the firmware 
locks? They are not even in the technical guide in the section that 
mentions adding a CPU.

So if I should perform due diligence where should I find out about the 
locks?

I don't even know which locks are in my machine --- I added 1GB memory and 
a 32-bit PCI serial card and it worked ... how can I find what else can or 
can't I add?

For example: Can I replace the 0.9GHz CPU with a faster 1.1GHz? 
(obviously, it is needed to know it before purchasing the CPU)

> However, why don't you try what we usually do?  That's ask HP nicely 
> (via someone in their linux department) for the firmware upgrade; it's 
> mostly worked in the past ... assuming you haven't antagonised them too 
> much by calling them liars and cheats, that is ...
> 
> James

That's why I asked here ... without accussing anyone of lying first ... 
assuming that there are Linux hackers on this list, they have thorough 
knowledge of the hardware and they'll say something like "run this command 
in PDC" or "flip byte at that address in nvram to that value and unlock 
it".

But it seems that people on this list don't know about those HP locks too 
:-(

Mikulas
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On Sat, 23 Oct 2010, John David Anglin wrote:

> > > In the section on replacing the system board, it says to use the ss_update
> > > utility in the BCH Service menu to reset the serial number.  Is the MFG
> > > menu accessible?  There may be some hidden commands to setup config.
> > 
> > There is a service menu, but no mfg menu and no ss_update command.
> > 
> > Interesting ... "mfg" gives "ERROR: Unsupported command" while any other 
> > bad commands gives "ERROR: Unknown command".
> > 
> > So there is something magic abouth that "mfg" menu, but it's inaccessible.
> 
> The mfg menu was shown in an online document about setting up the c8000.
> 
> I would guess that ss_update command and mfg menu disappear after
> the unit has been configured.  Probably, the configuration data needs
> to be erased/reset to restore the menu.  Possibly, reflashing the
> bch firmware would do it, or maybe there is a ODE command to reset
> the config.
> 
> You might try downloading the firmware update.  At least for the
> rp3440, one burns an ODE CD.  Then, one boots the CD and uses various
> ODE commands to flash the firmware.  There was definitely a lot
> more stuff on the CD than just the utilities to flash the firmware.
> Of course, one mistake and you brick the system.  It would probably
> take HP specific JTAG tools to recover.
> 
> Dave

I found some HPUX binary, as a firmware upgrade for C8000, that I didn't 
run (it says it upgrades to the same version that I have).

I'm quite scared to run rp3440 CD on an unsupported system. But I'll try 
anyway.

Mikulas
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From - Thu Nov 08 21:06:22 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: False advertising (was: C8000 cpu upgrade problem)
Date: Sat, 23 Oct 2010 15:42:13 -0400
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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To: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
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On Sat, 23 Oct 2010, Mikulas Patocka wrote:

> > It's fairly standard for the enterprise space:  Both HP and IBM actually
> > sell boxes fully loaded but disable unpaid for capabilities in the
> > firmware (i.e. sell you a 2-cpu box that really contains 4 cpus so they
> > then sell a firmware upgrade as two extra cpus); enterprise users
> > actually like the convenience of not having to haul away and replace the
> > box.
> 
> This is a different case. You can't accuse a contractor if you order two 
> CPUs and get four :)

I agree.  HP didn't provide the extra cpu module.  Nothing in the technical
documentation indicates that you can't add another processor module without
a firmware update.  In fact, they provide instructions on how to add one.

I don't believe there is any form of capability license involved here.

As far as I can tell, firmware updates for the c8000 are freely available
on HP's site.

> It says "lets YOU grow and configure the system as needed". There is that 
> pronoun "YOU".

Also agree.  The whitepaper and product brief for the c8000 are very clear
on users being able to expand their systems and keep ownership costs low.

It's possible the motherboard of Mikulas' system is broken, or doesn't
work with a second processor module.  So, support for it is disabled.
Selling reduced versions of chips is very common in the semiconductor
industry to increase yield.

I would check the label on the product.

> I don't even know which locks are in my machine --- I added 1GB memory and 
> a 32-bit PCI serial card and it worked ... how can I find what else can or 
> can't I add?
> 
> For example: Can I replace the 0.9GHz CPU with a faster 1.1GHz? 
> (obviously, it is needed to know it before purchasing the CPU)

It's a good question, but probably there isn't a clear answer.  It
may work, but the system probably wasn't tested with the faster processor.
The faster processor will likely use more power and create an additional
thermal load.

Still, there is the expectation in the current workstation market that
the processors in a system can be upgraded provided they are compatible.

> But it seems that people on this list don't know about those HP locks too 
> :-(

Most don't have any affiliation with HP.  I have been on this list a
long time, and don't believe this issue has been discussed before,
although the kernel maintainers may be aware of it.

In general, this kind of hardware information is proprietory.  The
PC architecture only opened up because of a lot of competition and
reverse engineering.  Even there, you may need a NDA to access some
documentation.  It costs $3000/year to access PCI-SIG documents, etc.

James, what kind of firmware update is needed?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:23 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: False advertising (was: C8000 cpu upgrade problem)
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On Sat, Oct 23, 2010 at 03:42:13PM -0400, John David Anglin wrote:
> Most don't have any affiliation with HP.  I have been on this list a
> long time, and don't believe this issue has been discussed before,
> although the kernel maintainers may be aware of it.
> 

I honestly didn't know about it... I mean, I knew that HP did similar
things on IA-64 where new cpus could be 'purchased' and spun up with no
downtime. But I didn't realize the C8000 had such limitations (mine is
an early prototype so there was no possibility for upgrade and I never
bothered.)

Hopefully on Monday someone from HP who's still around may be able to
provide the tool since any support contracts are probably expired given
they haven't been sold since 2006...

We should add a note to the faq about this.

--Kyle
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On Sat, 2010-10-23 at 15:42 -0400, John David Anglin wrote:
> > But it seems that people on this list don't know about those HP locks too 
> > :-(
> 
> Most don't have any affiliation with HP.  I have been on this list a
> long time, and don't believe this issue has been discussed before,
> although the kernel maintainers may be aware of it.
> 
> In general, this kind of hardware information is proprietory.  The
> PC architecture only opened up because of a lot of competition and
> reverse engineering.  Even there, you may need a NDA to access some
> documentation.  It costs $3000/year to access PCI-SIG documents, etc.
> 
> James, what kind of firmware update is needed?

I have no idea ... I'm only deducing this from what had to be done to
ion to make it a 4-way.  We had similar upgrades to some of the A180s as
well.  It is unusual for a workstation class system, but the "too many
CPUs" message seems definitive.  Perhaps the firmware is essentially the
same as a server class and it's inheriting this behaviour.

James


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From - Thu Nov 08 21:06:23 2018
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> > James, what kind of firmware update is needed?
> 
> I have no idea ... I'm only deducing this from what had to be done to
> ion to make it a 4-way.  We had similar upgrades to some of the A180s as
> well.  It is unusual for a workstation class system, but the "too many
> CPUs" message seems definitive.  Perhaps the firmware is essentially the
> same as a server class and it's inheriting this behaviour.

I agree the message appears definitive, but my impression from searching
the internet and the technical reference is that the c8000 doesn't require
firmware upgrades like the servers to add a processor module.

I see that various suppliers are selling processor upgrade modules
(AB630A : 900 MHz 32 MB L2) for c8000.  There are warnings that speed
and cache must match.  Some c8000s were sold without L2 cache, but
I don't see any processor modules without cache for sale.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:23 2018
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On Sat, 23 Oct 2010, Kyle McMartin wrote:

> On Sat, Oct 23, 2010 at 03:42:13PM -0400, John David Anglin wrote:
> > Most don't have any affiliation with HP.  I have been on this list a
> > long time, and don't believe this issue has been discussed before,
> > although the kernel maintainers may be aware of it.
> 
> I honestly didn't know about it... I mean, I knew that HP did similar
> things on IA-64 where new cpus could be 'purchased' and spun up with no
> downtime.

I suppose that that IA-64 booted with spare CPUs but didn't use them. My 
C8000 doesn't boot with two CPUs at all. It drops into PDC prompt, saying 
the warning about too many CPUs, and the "BO" command refuses to boot, 
asking the user to review the warnings.

> But I didn't realize the C8000 had such limitations (mine is
> an early prototype so there was no possibility for upgrade and I never
> bothered.)
>
> Hopefully on Monday someone from HP who's still around may be able to
> provide the tool since any support contracts are probably expired given
> they haven't been sold since 2006...

It would be nice if they provided the tool and cleared the false 
advertising problem.

I'm quite afraid that a single HP engineer can't release them. More 
likely, someone higher up the corporate command chain declared that the 
tools are "proprietary" and didn't realize that such restriction really 
makes the product deviate from advertised capabilities.

> We should add a note to the faq about this.
> 
> --Kyle

Mikulas
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Le 23 oct. 10 =E0 19:14, Matt Turner a =E9crit :

> Poor HP.
>
> Seriously though. From a glance, the C8000 seems to be the most
> capable PA-RISC system for someone who wants to help with
> Linux-on-PARISC. Clearly, people like upgrading (and being able to
> upgrade) their computers. If I were to buy a C8000 I'd be interested
> in figuring out how to find a second CPU, add more RAM, and install
> another PCI card. But these debilitating restrictions prevent any of
> this.
>
> So, my question is, if you and Carlos knew about this previously
> (which I assume you did by your responses, but I may be wrong) then
> why can I not find this information anywhere on parisc-linux.org or i=
n
> the appropriate mailing list archives?

Disclaimer: IANAL and I don't know C8000.

I suppose we can't put the procedure about how to to do that on the =20
website for two reasons:

1) if my assumptions are right, enabling the extra CPU requires =20
entering Manufacturing Mode (MFG in PDC parlance) in order to change =20
the Model String (suppositions based on previous experience with a =20
different machine), which itself needs a hardware-specific password, =20
generated with an HP tool using the crypto challenge prompted by the =20
firmware when trying to activate this mode (been there on another =20
machine).
2) it would most likely be illegal (and a liability) to either =20
disclose the means to circumvent HP's upgrading policy or to provide =20
the HP-internal tools to do so, if ever we had them (which we do not). =
=20
Even more so since our website is hosted @HP.

James rightfully pointed out that the best way to solve this issue =20
would be to kindly ring a bell within HP and try to work this out on a =
=20
one-on-one basis, hopefully avoiding calling names. HP has a history =20
of being relatively helpful with that sort of matters, I'd expect this =
=20
to turn for the best.

HTH

T-Bone--
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On Sat, Oct 23, 2010 at 9:18 PM, Thibaut VAR=C8NE <T-Bone@parisc-linux.=
org> wrote:
> I suppose we can't put the procedure about how to to do that on the w=
ebsite
> for two reasons:
>
> 1) if my assumptions are right, enabling the extra CPU requires enter=
ing
> Manufacturing Mode (MFG in PDC parlance) in order to change the Model=
 String
> (suppositions based on previous experience with a different machine),=
 which
> itself needs a hardware-specific password, generated with an HP tool =
using
> the crypto challenge prompted by the firmware when trying to activate=
 this
> mode (been there on another machine).
> 2) it would most likely be illegal (and a liability) to either disclo=
se the
> means to circumvent HP's upgrading policy or to provide the HP-intern=
al
> tools to do so, if ever we had them (which we do not). Even more so s=
ince
> our website is hosted @HP.

I wasn't suggesting putting instructions to circumvent whatever
protections HP has in place on the site. I only meant a note saying
"don't expect to be able to add another CPU or even upgrade the RAM or
CPU."

Matt
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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.drivers.e1000.devel
Subject: [PATCH] e1000: Allow the driver to be used on PA RISC C8000
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Hi

This is my first patch for my PA RISC C8000 machine: allow to use the 
onboard NIC.

Mikulas

---

Allow the driver to be used on PA RISC C8000 workstation

Search on the internet shows that the checksum field in the EEPROM on HPPA is
really not a checksum but a signature (different users including me found
the same mismatching checksum 0x16d6, despite their MAC addresses and
EEPROM content being different).

So I allow 0x16d6 (the last word read) as the matching checksum on hppa.

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>

Index: linux-2.6.36-rc8/drivers/net/e1000/e1000_hw.c
===================================================================
--- linux-2.6.36-rc8.orig/drivers/net/e1000/e1000_hw.c	2010-10-24 04:01:03.000000000 +0200
+++ linux-2.6.36-rc8/drivers/net/e1000/e1000_hw.c	2010-10-24 04:25:22.000000000 +0200
@@ -3840,6 +3840,12 @@ s32 e1000_validate_eeprom_checksum(struc
 		checksum += eeprom_data;
 	}
 
+#ifdef __hppa__
+	/* This seems to be a signature and not a checksum on HP c8000 */
+	if (eeprom_data == 0x16d6)
+		return E1000_SUCCESS;
+#endif
+
 	if (checksum == (u16) EEPROM_SUM)
 		return E1000_SUCCESS;
 	else {
--
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From - Thu Nov 08 21:06:23 2018
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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
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Subject: Re: C8000 cpu upgrade problem
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On Sat, 23 Oct 2010, John David Anglin wrote:

> > I'm still thinking the processor module shown above is the base
> > model with 3 MB L1 and no L2, and it's not consistent with upgrade
> > module.
> 
> I just noticed the following wording in the online specifications:
> 
> 1 or 2 dual-core PA-8800 or PA-8900 processors
>   (2-way 900 MHz PA-8800 with 3 MB L1 cache,
>    2 or 4-way 900 MHz or 1 GHz PA-8800 3 MB L1 and 32 MB L2 cache or
>    2 or 4-way 1.1 GHz PA-8900 with 3 MB L1 cache and 64 MB L2 cache)
> 
> Note the base model with no L2 appears to be only 2-way.  If it
> can be upgraded, I think you would need a AB665A kit.  Kits with
> L2 cache seem more common.  To do this right, you need to start
> with the specific workstation model number.
> 
> See HP PartSurfer.
> 
> I also found a QuickSpecs document with PA-8900 processors.  It looks
> like the 2-way base is not upgradeable as the second processor options
> only have 64 MB L2.  The document lists a 2nd processor as an after-market
> option (AB675A or AB676A).  There is a note that the second processor
> must be the same as the first.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

I tried to measure the cache size, sequential memory read showed cutoff at 
700kB and no cutoff at 32MB. It shows 1.7GB/s below 700kB and 612MB/s 
above. Latency measurements (chasing pointer chain) showed drastic cutoff 
at 700kB (from 3ns to 300ns) and no cutoff at 32MB.

It may be that the lack of L2 cache is the reason why the CPUs don't 
support multiprocessing ... I may buy two better CPUs, if I had actually 
guarantee that the machine isn't locked (I don't want to waste more money 
just to find out that the firmware lock doesn't go away).

Mikulas
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From - Thu Nov 08 21:06:23 2018
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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: False advertising (was: C8000 cpu upgrade problem)
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On Sun, 24 Oct 2010, Thibaut VAR?NE wrote:

> Disclaimer: IANAL and I don't know C8000.
> 
> I suppose we can't put the procedure about how to to do that on the website
> for two reasons:
> 
> 1) if my assumptions are right, enabling the extra CPU requires entering
> Manufacturing Mode (MFG in PDC parlance) in order to change the Model String
> (suppositions based on previous experience with a different machine), which
> itself needs a hardware-specific password, generated with an HP tool using the
> crypto challenge prompted by the firmware when trying to activate this mode
> (been there on another machine).
> 2) it would most likely be illegal (and a liability) to either disclose the
> means to circumvent HP's upgrading policy or to provide the HP-internal tools
> to do so, if ever we had them (which we do not). Even more so since our
> website is hosted @HP.
> 
> James rightfully pointed out that the best way to solve this issue would be to
> kindly ring a bell within HP and try to work this out on a one-on-one basis,
> hopefully avoiding calling names. HP has a history of being relatively helpful
> with that sort of matters, I'd expect this to turn for the best.

I think that asking employees to do illegal things (or things against 
corporate rules) isn't a viable way to go.

Once (a long time ago, on a totally different project) I got an offer for 
some internal code from an employee, who thought that it could improve my 
open source work. I refused it because I don't want to get into unneeded 
trouble. If I accepted it, I'd have to be careful to not ever disclose 
implicitly or explicitly that I saw the code.

Mikulas

> HTH
> 
> T-Bone
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From - Thu Nov 08 21:06:23 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: C8000 cpu upgrade problem
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On Sun, Oct 24, 2010 at 05:03:25AM +0200, Mikulas Patocka wrote:
> I tried to measure the cache size, sequential memory read showed cutoff at 
> 700kB and no cutoff at 32MB. It shows 1.7GB/s below 700kB and 612MB/s 
> above. Latency measurements (chasing pointer chain) showed drastic cutoff 
> at 700kB (from 3ns to 300ns) and no cutoff at 32MB.
> 
> It may be that the lack of L2 cache is the reason why the CPUs don't 
> support multiprocessing ... I may buy two better CPUs, if I had actually 
> guarantee that the machine isn't locked (I don't want to waste more money 
> just to find out that the firmware lock doesn't go away).
> 

FWIW, I'd recommend running in non-SMP mode on pa8800/8900 anyway, as
our cache flushing is a bit... suboptimal right now (doing whole cache
flushes on fork and such.) Which, coupled with the gigantic caches on
those cpus which must be flushed just tanks performance.

I've been working on cleaning up jejb's patchset from back in the
bitkeeper days to properly do deferred flushing, but time is constantly
against me (sigh, I don't think I've even powered on my C8000 in a few
years now... explains why I didn't catch your e1000 issue there. :)

--Kyle
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From - Thu Nov 08 21:06:23 2018
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> It may be that the lack of L2 cache is the reason why the CPUs don't 
> support multiprocessing ... I may buy two better CPUs, if I had actually 
> guarantee that the machine isn't locked (I don't want to waste more money 
> just to find out that the firmware lock doesn't go away).

Are you sure the part numbers for the two processor modules that you
have are the same?  Parts with cache seem much more common.  There
also seem to be quite a few obsolete parts.

It might be Linux would work better without the L2 cache.  There are
are some cache coherency issues that haven't been resolved in SMP.
These problems are aggrevated by the L2 cache which takes a long
time to flush.

It's just not clear that your machine is locked.  The c8000 model
name doesn't change depending on number of processors.  If you search
on rp3410 processor upgrade, you will find that a processor update
license is needed to go from one to two processor.  This is clear
in the documentation.  I couldn't find anything similar for c8000.
Indeed, there are many indications that an after-market processor
update is possible for it.

Good luck,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Le 24 oct. 10 =E0 05:18, Mikulas Patocka a =E9crit :
> On Sun, 24 Oct 2010, Thibaut VAR?NE wrote:

>> James rightfully pointed out that the best way to solve this issue =20
>> would be to
>> kindly ring a bell within HP and try to work this out on a one-on-=20
>> one basis,
>> hopefully avoiding calling names. HP has a history of being =20
>> relatively helpful
>> with that sort of matters, I'd expect this to turn for the best.
>
> I think that asking employees to do illegal things (or things against
> corporate rules) isn't a viable way to go.

I'm not suggesting anything like that.

> Once (a long time ago, on a totally different project) I got an =20
> offer for
> some internal code from an employee, who thought that it could =20
> improve my
> open source work. I refused it because I don't want to get into =20
> unneeded
> trouble. If I accepted it, I'd have to be careful to not ever disclos=
e
> implicitly or explicitly that I saw the code.


WTH? Clearly accessing HP's intellectual property and asking for a one-=
=20
time unique unlock password for phased out hardware are two very =20
different things, I'm sure you can undertand that.

=46WIW, rereading your emails, it looks like your CPU model doesn't =20
indeed support dual-processor configuration. Try asking for help on =20
HP's support forums. Competent people are generally around and might =20
be able to answer your questions.

Regarding speed upgrade, I don't know whether your machine would be =20
locked down or not. On server systems, changing CPUs for faster ones =20
generally requires Model Name change (and thus entering MFG mode, =20
etc), but as JDA pointed out, this may not be the case for workstations=
=2E

--=20
Thibaut VAR=C8NE
http://www.parisc-linux.org/~varenet/

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On Sun, 24 Oct 2010, John David Anglin wrote:

> > It may be that the lack of L2 cache is the reason why the CPUs don't 
> > support multiprocessing ... I may buy two better CPUs, if I had actually 
> > guarantee that the machine isn't locked (I don't want to waste more money 
> > just to find out that the firmware lock doesn't go away).
> 
> Are you sure the part numbers for the two processor modules that you
> have are the same?  Parts with cache seem much more common.  There
> also seem to be quite a few obsolete parts.

They are the same (I posted the version numbers written by PDC). But as 
you noted, the versions without L2 cache may not be smp aware.

> It might be Linux would work better without the L2 cache.

What is the exact problem with L2 cache? Is it virtually indexed too?

> There are are some cache coherency issues that haven't been resolved in 
> SMP.

What exactly do you mean?

> These problems are aggrevated by the L2 cache which takes a long 
> time to flush.
> 
> It's just not clear that your machine is locked.  The c8000 model
> name doesn't change depending on number of processors.  If you search
> on rp3410 processor upgrade, you will find that a processor update
> license is needed to go from one to two processor.  This is clear
> in the documentation.  I couldn't find anything similar for c8000.
> Indeed, there are many indications that an after-market processor
> update is possible for it.

I don't know. Before I buy two CPUs to get a quad-core system, I'd like to 
make sure it isn't locked. Can the lock be detected somehow?

Mikulas

> Good luck,
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
> 
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Subject: PA caches (was: C8000 cpu upgrade problem)
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On Sat, 23 Oct 2010, Kyle McMartin wrote:

> On Sun, Oct 24, 2010 at 05:03:25AM +0200, Mikulas Patocka wrote:
> > I tried to measure the cache size, sequential memory read showed cutoff at 
> > 700kB and no cutoff at 32MB. It shows 1.7GB/s below 700kB and 612MB/s 
> > above. Latency measurements (chasing pointer chain) showed drastic cutoff 
> > at 700kB (from 3ns to 300ns) and no cutoff at 32MB.
> > 
> > It may be that the lack of L2 cache is the reason why the CPUs don't 
> > support multiprocessing ... I may buy two better CPUs, if I had actually 
> > guarantee that the machine isn't locked (I don't want to waste more money 
> > just to find out that the firmware lock doesn't go away).
> > 
> 
> FWIW, I'd recommend running in non-SMP mode on pa8800/8900 anyway, as

I tried UP build and it is almost twice slower when compiling (obviously). 
So I don't see any performance advantage in running UP :)

Generally, performance of two-way 900MHz machine is not that bad --- 5 
times faster compile than 440MHz sparc. It suffers only on tests involving 
mostly kernelwork, but no so seriously --- 3.5 times faster than said 
sparc when doing a "dummy" make of an already compiled project (just 
testing timestamps) and 1.2 times faster than sparc on make clean (ok, it 
sucks when re-calculated to clock-to-clock). Generally, I think it's 
usable for development.

I found that gcc 4.3 from Debian 5 is buggy, it miscompiled the UP kernel. 
Compiling it with -Os worked fine. Could you please recommend a compiler 
to use? (4.4 from Debian 6 ... or some other version?)

> our cache flushing is a bit... suboptimal right now (doing whole cache
> flushes on fork and such.)

What is exactly the problem there? Could you describe it or refer to some 
document that describes it? Why do you need to flush on fork?

Sparc has virtually indexed caches too, but there are not many problems 
with it, basically the only needed thing is to flush the cache when kernel 
touches some user page via its own mapping. (if they ran with 16kB page 
size, they wouldn't have to care about data cache coherency at all).

Another thing I don't understand: the L1 cache is supposed to be 
direct-mapped, but it's size is 768kB. I can't imagine how is it 
implemented. Does it mean that the processor does a divide-by-3 on every 
cache access?

Or is it a mistake and the cache is 3-way set associative, with set size 
256kB? (that would make much more sense)

> Which, coupled with the gigantic caches on
> those cpus which must be flushed just tanks performance.
> 
> I've been working on cleaning up jejb's patchset from back in the
> bitkeeper days to properly do deferred flushing, but time is constantly
> against me (sigh, I don't think I've even powered on my C8000 in a few
> years now... explains why I didn't catch your e1000 issue there. :)
> 
> --Kyle

Mikulas
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On Tue, Oct 26, 2010 at 04:16:39AM +0200, Mikulas Patocka wrote:
> I tried UP build and it is almost twice slower when compiling (obviously). 
> So I don't see any performance advantage in running UP :)
> 
> Generally, performance of two-way 900MHz machine is not that bad --- 5 
> times faster compile than 440MHz sparc. It suffers only on tests involving 
> mostly kernelwork, but no so seriously --- 3.5 times faster than said 
> sparc when doing a "dummy" make of an already compiled project (just 
> testing timestamps) and 1.2 times faster than sparc on make clean (ok, it 
> sucks when re-calculated to clock-to-clock). Generally, I think it's 
> usable for development.
> 

Heh. I think you may be lucking in here... see below.

> I found that gcc 4.3 from Debian 5 is buggy, it miscompiled the UP kernel. 
> Compiling it with -Os worked fine. Could you please recommend a compiler 
> to use? (4.4 from Debian 6 ... or some other version?)
> 

4.4.5 from sid is what I'm using... I think it's working more or less
for me. I've only been building/booting UP/SMP on an rp3440 these days,
so I'm not sure about 32-bit.

> > our cache flushing is a bit... suboptimal right now (doing whole cache
> > flushes on fork and such.)
> 
> What is exactly the problem there? Could you describe it or refer to some 
> document that describes it? Why do you need to flush on fork?
> 
> Sparc has virtually indexed caches too, but there are not many problems 
> with it, basically the only needed thing is to flush the cache when kernel 
> touches some user page via its own mapping. (if they ran with 16kB page 
> size, they wouldn't have to care about data cache coherency at all).
> 

I can't remember exactly why offhand, I'm sure jejb can remind us.

> Another thing I don't understand: the L1 cache is supposed to be 
> direct-mapped, but it's size is 768kB. I can't imagine how is it 
> implemented. Does it mean that the processor does a divide-by-3 on every 
> cache access?
> 
> Or is it a mistake and the cache is 3-way set associative, with set size 
> 256kB? (that would make much more sense)
> 

That's the output from one of the firmware queries, which has been lying
to us for a very long time (apparently HP just doesn't test these things
or something.) It believe the pa8800 L1 caches were 4-way associative.

So, on to the interesting bit!

Does your /proc/cpuinfo actually say 768kB? That's... amazingly
interesting. I wonder (out loud, sorry I should go back and look at the
prior emails) if that's the cause of your cpu issues...

processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8800 (Mako)
cpu MHz         : 999.995500
capabilities    : os64
model           : 9000/800/rp3440  
model name      : Storm Peak Fast
hversion        : 0x00008890
sversion        : 0x00000491
I-cache         : 32768 KB
D-cache         : 32768 KB (WB, direct mapped)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
bogomips        : 1998.84
software id     : 4468984695822677774

is what mine says... (with the 32MB L2 cache.)

Anyway, the L1 are usually 2/4-way associative on parisc, iirc, I
believe the L2 is as well.

The main problems we see on the pa8800 is due to the L2, which is
physically indexed, and exclusive. We had some bizarre
corruption due to incorrect evictions there. (And flushing 32MB on
fork is just utterly painful, we really need to fix that someday.)

--Kyle
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> > I found that gcc 4.3 from Debian 5 is buggy, it miscompiled the UP kernel. 
> > Compiling it with -Os worked fine. Could you please recommend a compiler 
> > to use? (4.4 from Debian 6 ... or some other version?)
> > 
> 
> 4.4.5 from sid is what I'm using... I think it's working more or less
> for me. I've only been building/booting UP/SMP on an rp3440 these days,
> so I'm not sure about 32-bit.

Almost all the bugs are middle-end problems.  Gradually, things have
been getting better, but resolving wrong code bugs is often difficult,
particularly if the compiler has been miscompiled.

Some of the things that hurt:
a) Strict alignment and wierd abi for passing structs.
b) Callee copies (almost all other archs are caller copy).

Recently, a serious bug in forward propagation was discovered.  It's
hard to tell the magnitude of its impact.

> > > our cache flushing is a bit... suboptimal right now (doing whole cache
> > > flushes on fork and such.)
> > 
> > What is exactly the problem there? Could you describe it or refer to some 
> > document that describes it? Why do you need to flush on fork?
> > 
> > Sparc has virtually indexed caches too, but there are not many problems 
> > with it, basically the only needed thing is to flush the cache when kernel 
> > touches some user page via its own mapping. (if they ran with 16kB page 
> > size, they wouldn't have to care about data cache coherency at all).
> > 
> 
> I can't remember exactly why offhand, I'm sure jejb can remind us.

The fundamental issue is the PA-8800 and PA-8900 implementations
don't support non equivalent aliasing.  So, copies to/from the
kernel mapping are tricky.

> That's the output from one of the firmware queries, which has been lying
> to us for a very long time (apparently HP just doesn't test these things
> or something.) It believe the pa8800 L1 caches were 4-way associative.
> 
> So, on to the interesting bit!
> 
> Does your /proc/cpuinfo actually say 768kB? That's... amazingly
> interesting. I wonder (out loud, sorry I should go back and look at the
> prior emails) if that's the cause of your cpu issues...
> 
> processor       : 0
> cpu family      : PA-RISC 2.0
> cpu             : PA8800 (Mako)
> cpu MHz         : 999.995500
> capabilities    : os64
> model           : 9000/800/rp3440  
> model name      : Storm Peak Fast
> hversion        : 0x00008890
> sversion        : 0x00000491
> I-cache         : 32768 KB
> D-cache         : 32768 KB (WB, direct mapped)
> ITLB entries    : 240
> DTLB entries    : 240 - shared with ITLB
> bogomips        : 1998.84
> software id     : 4468984695822677774
> 
> is what mine says... (with the 32MB L2 cache.)

My inspection of the datasheets for the c8000 indicated that the base
configuration was 2-way with no L2 cache (both PA8800 and PA8900).
It had a total cache size of 3 MB.  The optional PA8800 models were
2 and 4-way PA8800 with 32 MB L2 cache per processor module.  The optional
PA8900 models had 64 MB L2 per processor module.

Also, Mikulas machine is misidentified as Mako2.  Why does the model
for yours show it is a rp3440?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
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Subject: Re: PA caches (was: C8000 cpu upgrade problem)
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On Mon, 25 Oct 2010, Kyle McMartin wrote:

> On Tue, Oct 26, 2010 at 04:16:39AM +0200, Mikulas Patocka wrote:
> > I tried UP build and it is almost twice slower when compiling (obviously). 
> > So I don't see any performance advantage in running UP :)
> > 
> > Generally, performance of two-way 900MHz machine is not that bad --- 5 
> > times faster compile than 440MHz sparc. It suffers only on tests involving 
> > mostly kernelwork, but no so seriously --- 3.5 times faster than said 
> > sparc when doing a "dummy" make of an already compiled project (just 
> > testing timestamps) and 1.2 times faster than sparc on make clean (ok, it 
> > sucks when re-calculated to clock-to-clock). Generally, I think it's 
> > usable for development.
> > 
> 
> Heh. I think you may be lucking in here... see below.
> 
> > I found that gcc 4.3 from Debian 5 is buggy, it miscompiled the UP kernel. 
> > Compiling it with -Os worked fine. Could you please recommend a compiler 
> > to use? (4.4 from Debian 6 ... or some other version?)
> > 
> 
> 4.4.5 from sid is what I'm using... I think it's working more or less
> for me. I've only been building/booting UP/SMP on an rp3440 these days,
> so I'm not sure about 32-bit.
> 
> > > our cache flushing is a bit... suboptimal right now (doing whole cache
> > > flushes on fork and such.)
> > 
> > What is exactly the problem there? Could you describe it or refer to some 
> > document that describes it? Why do you need to flush on fork?
> > 
> > Sparc has virtually indexed caches too, but there are not many problems 
> > with it, basically the only needed thing is to flush the cache when kernel 
> > touches some user page via its own mapping. (if they ran with 16kB page 
> > size, they wouldn't have to care about data cache coherency at all).
> > 
> 
> I can't remember exactly why offhand, I'm sure jejb can remind us.
> 
> > Another thing I don't understand: the L1 cache is supposed to be 
> > direct-mapped, but it's size is 768kB. I can't imagine how is it 
> > implemented. Does it mean that the processor does a divide-by-3 on every 
> > cache access?
> > 
> > Or is it a mistake and the cache is 3-way set associative, with set size 
> > 256kB? (that would make much more sense)
> > 
> 
> That's the output from one of the firmware queries, which has been lying
> to us for a very long time (apparently HP just doesn't test these things
> or something.) It believe the pa8800 L1 caches were 4-way associative.

I'd say 3-way. If there are 768kB, the associativity must be 3*(2^n).

> So, on to the interesting bit!
> 
> Does your /proc/cpuinfo actually say 768kB? That's... amazingly
> interesting. I wonder (out loud, sorry I should go back and look at the
> prior emails) if that's the cause of your cpu issues...
> 
> processor       : 0
> cpu family      : PA-RISC 2.0
> cpu             : PA8800 (Mako)
> cpu MHz         : 999.995500
> capabilities    : os64
> model           : 9000/800/rp3440  
> model name      : Storm Peak Fast
> hversion        : 0x00008890
> sversion        : 0x00000491
> I-cache         : 32768 KB
> D-cache         : 32768 KB (WB, direct mapped)
> ITLB entries    : 240
> DTLB entries    : 240 - shared with ITLB
> bogomips        : 1998.84
> software id     : 4468984695822677774
> 
> is what mine says... (with the 32MB L2 cache.)

My says:
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8900 (Shortfin)
cpu MHz         : 900.000000
capabilities    : os64
model           : 9000/785/C8000
model name      : Unknown machine
hversion        : 0x00008920
sversion        : 0x00000491
I-cache         : 768 KB
D-cache         : 768 KB (WB, direct mapped)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
bogomips        : 1795.68
software id     : 6249854628114153565

PA8900 is wrong, direct mapped is wrong.

So, maybe the cache is the reason why it is fast and why it doesn't run on 
SMP?

> Anyway, the L1 are usually 2/4-way associative on parisc, iirc, I
> believe the L2 is as well.
> 
> The main problems we see on the pa8800 is due to the L2, which is
> physically indexed, and exclusive. We had some bizarre
> corruption due to incorrect evictions there. (And flushing 32MB on
> fork is just utterly painful, we really need to fix that someday.)
> 
> --Kyle

When I read the specification, it says that equivalent virtual addresses 
are those that are 16-MB (or multiplies of) apart. Warning, the PDF is 
wrong (it says 1MB), there's an errata on HP website that extends it to 
16MB.

It also gives an option to hash parts of space-ID to the cache addressing, 
I suppose this is turned off on Linux.

The hardware handles aliasing of equivalent addresses fine (both on UP or 
SMP).

Multiple mappings on non-equivalent addresses are allowed only if all are 
read-only (otherwise it generates machine-check conditions).



Based on the specification, I suppose that the processor finds the cache 
address with a virtual address (and optionally a space-id hashed into it), 
in parallel it finds the physical address using TLB, the cache contains 3 
or 4 lines at a given address, each with a full physical address. The 
phyiscal addresses are compared with the output from the TLB and if match 
is found, that cache line is accessed.



So, if we want to implement it correctly, we must allow aliasing only on 
equivalent virtual addresses.

- fork --- no problem, the mappings are equivalent after fork, I see no 
need to flush cache there, hardware should do. If you see such need, 
describe it.

- kmap (accessing user pages from the kernel) --- kmap will work if we 
deliberately select an equivalent kernel address (that matches the user 
address modulo 16M). If we do, no need to flush cache.

- shared memory --- there is SHMLBA boundary that causes that all mappings 
are aligned to this boundary --- it is **WRONG** in the current kernel!!! 
It is only 4MB and should be 16MB!!!

- mapped files --- I'd simply map them all so that (mapped_address - 
file_offset) is divisiable by 16MB. One problem would be MAP_FIXED, this 
should be simply rejected with -EINVAL and userspace linker be patched to 
use conguent addresses.

Note that aliasing non-equivalent addresses may cause machine-check 
exception according to the specifications, so we simply can't allow the 
userspace to do them. I don't know how many programs will be broken by 
restricting MAP_FIXED, but I don't see any other reasonable way (well, 
you can unmap the other mappings when creating a non-equivalent mapping, 
but what to do with mlock() then?).

How does HP-UX solve MAP_FIXED to non-equivalent addresses? Does it abort 
it with -EINVAL?

If we obey these rules, we can run with no cache flushing in page mapping 
or unmappinh at all. There is one case where we'd need to flush cache --- 
freeing a page and allocating it to a different virtual address. We'd need 
to free cache on all page freeings or allocations. (it could be later 
minigated with an arch-specific wrapper around page allocator)

Mikulas
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: PA caches (was: C8000 cpu upgrade problem)
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> > Heh. I think you may be lucking in here... see below.
> > 
> > > I found that gcc 4.3 from Debian 5 is buggy, it miscompiled the UP kernel. 
> > > Compiling it with -Os worked fine. Could you please recommend a compiler 
> > > to use? (4.4 from Debian 6 ... or some other version?)
> > > 
> > 
> > 4.4.5 from sid is what I'm using... I think it's working more or less
> > for me. I've only been building/booting UP/SMP on an rp3440 these days,
> > so I'm not sure about 32-bit.
> > 
> > > > our cache flushing is a bit... suboptimal right now (doing whole cache
> > > > flushes on fork and such.)
> > > 
> > > What is exactly the problem there? Could you describe it or refer to some 
> > > document that describes it? Why do you need to flush on fork?
> > > 
> > > Sparc has virtually indexed caches too, but there are not many problems 
> > > with it, basically the only needed thing is to flush the cache when kernel 
> > > touches some user page via its own mapping. (if they ran with 16kB page 
> > > size, they wouldn't have to care about data cache coherency at all).
> I'd say 3-way. If there are 768kB, the associativity must be 3*(2^n).
> 
> > So, on to the interesting bit!
> > 
> > Does your /proc/cpuinfo actually say 768kB? That's... amazingly
> > interesting. I wonder (out loud, sorry I should go back and look at the
> > prior emails) if that's the cause of your cpu issues...
> > 
> > processor       : 0
> > cpu family      : PA-RISC 2.0
> > cpu             : PA8800 (Mako)
> > cpu MHz         : 999.995500
> > capabilities    : os64
> > model           : 9000/800/rp3440  
> > model name      : Storm Peak Fast
> > hversion        : 0x00008890
> > sversion        : 0x00000491
> > I-cache         : 32768 KB
> > D-cache         : 32768 KB (WB, direct mapped)
> > ITLB entries    : 240
> > DTLB entries    : 240 - shared with ITLB
> > bogomips        : 1998.84
> > software id     : 4468984695822677774
> > 
> > is what mine says... (with the 32MB L2 cache.)
> 
> My says:
> processor       : 0
> cpu family      : PA-RISC 2.0
> cpu             : PA8900 (Shortfin)
> cpu MHz         : 900.000000
> capabilities    : os64
> model           : 9000/785/C8000
> model name      : Unknown machine
> hversion        : 0x00008920
> sversion        : 0x00000491
> I-cache         : 768 KB
> D-cache         : 768 KB (WB, direct mapped)
> ITLB entries    : 240
> DTLB entries    : 240 - shared with ITLB
> bogomips        : 1795.68
> software id     : 6249854628114153565
> 
> PA8900 is wrong, direct mapped is wrong.

"direct mapped" indicates that the PDC_CACHE call returned a D_loop value
of 1.  According to the documentation, this indicates that FDCE(addr) only
needs to be done once at any given address.  A N way cache may require
N FDCE(addr) executions or just 1, depending on implementation.  Thus, a
value of 1 doesn't provide any information about the details of the
implementation.

Probably, the I_loop and D_loop values should be saved for the cache
flush code.

> So, maybe the cache is the reason why it is fast and why it doesn't run on 
> SMP?

What happens when you run a SMP kernel?

> > Anyway, the L1 are usually 2/4-way associative on parisc, iirc, I
> > believe the L2 is as well.
> > 
> > The main problems we see on the pa8800 is due to the L2, which is
> > physically indexed, and exclusive. We had some bizarre
> > corruption due to incorrect evictions there. (And flushing 32MB on
> > fork is just utterly painful, we really need to fix that someday.)
> > 
> > --Kyle
> 
> When I read the specification, it says that equivalent virtual addresses 
> are those that are 16-MB (or multiplies of) apart. Warning, the PDF is 
> wrong (it says 1MB), there's an errata on HP website that extends it to 
> 16MB.
> 
> It also gives an option to hash parts of space-ID to the cache addressing, 
> I suppose this is turned off on Linux.
> 
> The hardware handles aliasing of equivalent addresses fine (both on UP or 
> SMP).
> 
> Multiple mappings on non-equivalent addresses are allowed only if all are 
> read-only (otherwise it generates machine-check conditions).
> 
> 
> 
> Based on the specification, I suppose that the processor finds the cache 
> address with a virtual address (and optionally a space-id hashed into it), 
> in parallel it finds the physical address using TLB, the cache contains 3 
> or 4 lines at a given address, each with a full physical address. The 
> phyiscal addresses are compared with the output from the TLB and if match 
> is found, that cache line is accessed.
> 
> 
> 
> So, if we want to implement it correctly, we must allow aliasing only on 
> equivalent virtual addresses.
> 
> - fork --- no problem, the mappings are equivalent after fork, I see no 
> need to flush cache there, hardware should do. If you see such need, 
> describe it.
> 
> - kmap (accessing user pages from the kernel) --- kmap will work if we 
> deliberately select an equivalent kernel address (that matches the user 
> address modulo 16M). If we do, no need to flush cache.

I have tried this but haven't reached a fully stable configuration.
Unfortunately, the hard drive on the system that I was testing on
is dying...

See __clear_user_page_asm.  I tried similar implementations for
copy_user_page, etc.

> - shared memory --- there is SHMLBA boundary that causes that all mappings 
> are aligned to this boundary --- it is **WRONG** in the current kernel!!! 
> It is only 4MB and should be 16MB!!!

James has said that the max for all PA-RISC implementations is
4 MB.  The value is returned by the PDC_CACHE call.  Maybe a BUG_ON is
called for.  The alias boundary can be determined by the alias field
in the D_conf return value.

> - mapped files --- I'd simply map them all so that (mapped_address - 
> file_offset) is divisiable by 16MB. One problem would be MAP_FIXED, this 
> should be simply rejected with -EINVAL and userspace linker be patched to 
> use conguent addresses.
> 
> Note that aliasing non-equivalent addresses may cause machine-check 
> exception according to the specifications, so we simply can't allow the 
> userspace to do them. I don't know how many programs will be broken by 
> restricting MAP_FIXED, but I don't see any other reasonable way (well, 
> you can unmap the other mappings when creating a non-equivalent mapping, 
> but what to do with mlock() then?).
> 
> How does HP-UX solve MAP_FIXED to non-equivalent addresses? Does it abort 
> it with -EINVAL?

I believe that the call fails.  This was a problem in getting PCH to
work on hppa.

> If we obey these rules, we can run with no cache flushing in page mapping 
> or unmappinh at all. There is one case where we'd need to flush cache --- 
> freeing a page and allocating it to a different virtual address. We'd need 
> to free cache on all page freeings or allocations. (it could be later 
> minigated with an arch-specific wrapper around page allocator)
> 
> Mikulas
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 


-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
--
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: PA caches (was: C8000 cpu upgrade problem)
Date: Tue, 26 Oct 2010 22:40:48 -0400
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On Tue, 26 Oct 2010, John David Anglin wrote:

> I have tried this but haven't reached a fully stable configuration.
> Unfortunately, the hard drive on the system that I was testing on
> is dying...

Attached is last diff that I have readily available.  It's
certainly not right, but it points to areas that I though
might be problems.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 716634d..ad7df44 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -24,29 +24,46 @@
  * Hash function to index into a different SPINLOCK.
  * Since "a" is usually an address, use one spinlock per cacheline.
  */
-#  define ATOMIC_HASH_SIZE 4
-#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_HASH_SIZE (4096/L1_CACHE_BYTES)  /* 4 */
+#  define ATOMIC_HASH(a)      (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_USER_HASH(a) (&(__atomic_user_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
 
 extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
+extern arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 
 /* Can't use raw_spin_lock_irq because of #include problems, so
  * this is the substitute */
-#define _atomic_spin_lock_irqsave(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);		\
+#define _atomic_spin_lock_irqsave_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;		\
 	local_irq_save(f);			\
 	arch_spin_lock(s);			\
 } while(0)
 
-#define _atomic_spin_unlock_irqrestore(l,f) do {	\
-	arch_spinlock_t *s = ATOMIC_HASH(l);			\
+#define _atomic_spin_unlock_irqrestore_template(l,f,hash_func) do {	\
+	arch_spinlock_t *s = hash_func;			\
 	arch_spin_unlock(s);				\
 	local_irq_restore(f);				\
 } while(0)
 
+/* kernel memory locks */
+#define _atomic_spin_lock_irqsave(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_HASH(l))
+
+/* userspace memory locks */
+#define _atomic_spin_lock_irqsave_user(l,f)	\
+	_atomic_spin_lock_irqsave_template(l,f,ATOMIC_USER_HASH(l))
+
+#define _atomic_spin_unlock_irqrestore_user(l,f)	\
+	_atomic_spin_unlock_irqrestore_template(l,f,ATOMIC_USER_HASH(l))
 
 #else
 #  define _atomic_spin_lock_irqsave(l,f) do { local_irq_save(f); } while (0)
 #  define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
+#  define _atomic_spin_lock_irqsave_user(l,f) _atomic_spin_lock_irqsave(l,f)
+#  define _atomic_spin_unlock_irqrestore_user(l,f) _atomic_spin_unlock_irqrestore(l,f)
 #endif
 
 /* This should get optimized out since it's never called.
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 7a73b61..b90c895 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -2,6 +2,7 @@
 #define _PARISC_CACHEFLUSH_H
 
 #include <linux/mm.h>
+#include <linux/uaccess.h>
 
 /* The usual comment is "Caches aren't brain-dead on the <architecture>".
  * Unfortunately, that doesn't apply to PA-RISC. */
@@ -104,21 +105,32 @@ void mark_rodata_ro(void);
 #define ARCH_HAS_KMAP
 
 void kunmap_parisc(void *addr);
+void *kmap_parisc(struct page *page);
 
 static inline void *kmap(struct page *page)
 {
 	might_sleep();
-	return page_address(page);
+	return kmap_parisc(page);
 }
 
 #define kunmap(page)			kunmap_parisc(page_address(page))
 
-#define kmap_atomic(page, idx)		page_address(page)
+static inline void *kmap_atomic(struct page *page, enum km_type idx)
+{
+	pagefault_disable();
+	return kmap_parisc(page);
+}
 
-#define kunmap_atomic(addr, idx)	kunmap_parisc(addr)
+static inline void kunmap_atomic(void *addr, enum km_type idx)
+{
+	kunmap_parisc(addr);
+	pagefault_enable();
+}
 
-#define kmap_atomic_pfn(pfn, idx)	page_address(pfn_to_page(pfn))
-#define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
+#define kmap_atomic_prot(page, idx, prot)	kmap_atomic(page, idx)
+#define kmap_atomic_pfn(pfn, idx)	kmap_atomic(pfn_to_page(pfn), (idx))
+#define kmap_atomic_to_page(ptr)	virt_to_page(kmap_atomic(virt_to_page(ptr), (enum km_type) 0))
+#define kmap_flush_unused()	do {} while(0)
 #endif
 
 #endif /* _PARISC_CACHEFLUSH_H */
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 0c705c3..7bc963e 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -55,6 +55,7 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 {
 	int err = 0;
 	int uval;
+	unsigned long flags;
 
 	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
 	 * our gateway page, and causes no end of trouble...
@@ -65,10 +66,15 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
 		return -EFAULT;
 
+	_atomic_spin_lock_irqsave_user(uaddr, flags);
+
 	err = get_user(uval, uaddr);
-	if (err) return -EFAULT;
-	if (uval == oldval)
-		err = put_user(newval, uaddr);
+	if (!err)
+		if (uval == oldval)
+			err = put_user(newval, uaddr);
+
+	_atomic_spin_unlock_irqrestore_user(uaddr, flags);
+
 	if (err) return -EFAULT;
 	return uval;
 }
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index a84cc1f..cca0f53 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -21,15 +21,18 @@
 #include <asm/types.h>
 #include <asm/cache.h>
 
-#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define clear_page(page)	clear_page_asm((void *)(page))
+#define copy_page(to,from)      copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
-void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
+extern void copy_page_asm(void *to, void *from);
+extern void clear_page_asm(void *page);
+extern void copy_user_page_asm(void *to, void *from, unsigned long vaddr);
+extern void clear_user_page_asm(void *page, unsigned long vaddr);
+extern void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+extern void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index a27d2e2..8050948 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -14,6 +14,7 @@
 #include <linux/bitops.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
+#include <linux/uaccess.h>
 
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
@@ -30,15 +31,21 @@
  */
 #define kern_addr_valid(addr)	(1)
 
+extern spinlock_t pa_pte_lock;
+extern spinlock_t pa_tlb_lock;
+
 /* Certain architectures need to do special things when PTEs
  * within a page table are directly modified.  Thus, the following
  * hook is made available.
  */
-#define set_pte(pteptr, pteval)                                 \
-        do{                                                     \
+#define set_pte(pteptr, pteval)					\
+        do {							\
+		unsigned long flags;				\
+		spin_lock_irqsave(&pa_pte_lock, flags);		\
                 *(pteptr) = (pteval);                           \
+		spin_unlock_irqrestore(&pa_pte_lock, flags);	\
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+#define set_pte_at(mm,addr,ptep,pteval)	set_pte(ptep, pteval)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -262,6 +269,7 @@ extern unsigned long *empty_zero_page;
 #define pte_none(x)     ((pte_val(x) == 0) || (pte_val(x) & _PAGE_FLUSH))
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
 #define pte_clear(mm,addr,xp)	do { pte_val(*(xp)) = 0; } while (0)
+#define pte_same(A,B)	(pte_val(A) == pte_val(B))
 
 #define pmd_flag(x)	(pmd_val(x) & PxD_FLAG_MASK)
 #define pmd_address(x)	((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
@@ -410,6 +418,7 @@ extern void paging_init (void);
 
 #define PG_dcache_dirty         PG_arch_1
 
+extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn);
 extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
 
 /* Encode and de-code a swap entry */
@@ -423,56 +432,83 @@ extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
 #define __pte_to_swp_entry(pte)		((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x)		((pte_t) { (x).val })
 
-static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+static inline void __flush_tlb_page(struct mm_struct *mm, unsigned long addr)
 {
-#ifdef CONFIG_SMP
-	if (!pte_young(*ptep))
-		return 0;
-	return test_and_clear_bit(xlate_pabit(_PAGE_ACCESSED_BIT), &pte_val(*ptep));
-#else
-	pte_t pte = *ptep;
-	if (!pte_young(pte))
-		return 0;
-	set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte));
-	return 1;
-#endif
+	unsigned long flags;
+
+	/* For one page, it's not worth testing the split_tlb variable.  */
+	spin_lock_irqsave(&pa_tlb_lock, flags);
+	mtsp(mm->context,1);
+	pdtlb(addr);
+	pitlb(addr);
+	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 }
 
-extern spinlock_t pa_dbit_lock;
+static inline int ptep_set_access_flags(struct vm_area_struct *vma, unsigned
+ long addr, pte_t *ptep, pte_t entry, int dirty)
+{
+	int changed;
+	unsigned long flags;
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	changed = !pte_same(*ptep, entry);
+	if (changed) {
+		*ptep = entry;
+	}
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
+	if (changed) {
+		__flush_tlb_page(vma->vm_mm, addr);
+	}
+	return changed;
+}
+
+static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+{
+	pte_t pte;
+	unsigned long flags;
+	int r;
+
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	pte = *ptep;
+	if (pte_young(pte)) {
+		*ptep = pte_mkold(pte);
+		r = 1;
+	} else {
+		r = 0;
+	}
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
+
+	return r;
+}
 
 struct mm_struct;
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-	pte_t old_pte;
-	pte_t pte;
+	pte_t pte, old_pte;
+	unsigned long flags;
 
-	spin_lock(&pa_dbit_lock);
+	spin_lock_irqsave(&pa_pte_lock, flags);
 	pte = old_pte = *ptep;
 	pte_val(pte) &= ~_PAGE_PRESENT;
 	pte_val(pte) |= _PAGE_FLUSH;
-	set_pte_at(mm,addr,ptep,pte);
-	spin_unlock(&pa_dbit_lock);
+	*ptep = pte;
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
 
 	return old_pte;
 }
 
-static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+static inline void ptep_set_wrprotect(struct vm_area_struct *vma, struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-#ifdef CONFIG_SMP
-	unsigned long new, old;
-
-	do {
-		old = pte_val(*ptep);
-		new = pte_val(pte_wrprotect(__pte (old)));
-	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
-#else
-	pte_t old_pte = *ptep;
-	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
-#endif
+	pte_t old_pte;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pa_pte_lock, flags);
+	old_pte = *ptep;
+	*ptep = pte_wrprotect(old_pte);
+	__flush_tlb_page(mm, addr);
+	flush_cache_page(vma, addr, pte_pfn(old_pte));
+	spin_unlock_irqrestore(&pa_pte_lock, flags);
 }
 
-#define pte_same(A,B)	(pte_val(A) == pte_val(B))
-
 #endif /* !__ASSEMBLY__ */
 
 
@@ -504,6 +540,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 
 #define HAVE_ARCH_UNMAPPED_AREA
 
+#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
index d91357b..4653c77 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -160,7 +160,7 @@ static inline void set_eiem(unsigned long val)
    ldcd). */
 
 #define __PA_LDCW_ALIGNMENT	4
-#define __ldcw_align(a) ((volatile unsigned int *)a)
+#define __ldcw_align(a) (&(a)->slock)
 #define __LDCW	"ldcw,co"
 
 #endif /*!CONFIG_PA20*/
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index ec787b4..b2f35b2 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -137,6 +137,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -225,6 +226,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
@@ -290,5 +292,11 @@ int main(void)
 	BLANK();
 	DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
 	BLANK();
+
+#ifdef CONFIG_SMP
+	DEFINE(ASM_ATOMIC_HASH_SIZE_SHIFT, __builtin_ffs(ATOMIC_HASH_SIZE)-1);
+	DEFINE(ASM_ATOMIC_HASH_ENTRY_SHIFT, __builtin_ffs(sizeof(__atomic_hash[0]))-1);
+#endif
+
 	return 0;
 }
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index b6ed34d..7952ae4 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -336,9 +336,9 @@ __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
 	}
 }
 
-void flush_dcache_page(struct page *page)
+static void flush_user_dcache_page_internal(struct address_space *mapping,
+					    struct page *page)
 {
-	struct address_space *mapping = page_mapping(page);
 	struct vm_area_struct *mpnt;
 	struct prio_tree_iter iter;
 	unsigned long offset;
@@ -346,14 +346,6 @@ void flush_dcache_page(struct page *page)
 	pgoff_t pgoff;
 	unsigned long pfn = page_to_pfn(page);
 
-
-	if (mapping && !mapping_mapped(mapping)) {
-		set_bit(PG_dcache_dirty, &page->flags);
-		return;
-	}
-
-	flush_kernel_dcache_page(page);
-
 	if (!mapping)
 		return;
 
@@ -387,6 +379,19 @@ void flush_dcache_page(struct page *page)
 	}
 	flush_dcache_mmap_unlock(mapping);
 }
+
+void flush_dcache_page(struct page *page)
+{
+	struct address_space *mapping = page_mapping(page);
+
+	if (mapping && !mapping_mapped(mapping)) {
+		set_bit(PG_dcache_dirty, &page->flags);
+		return;
+	}
+
+	flush_kernel_dcache_page(page);
+	flush_user_dcache_page_internal(mapping, page);
+}
 EXPORT_SYMBOL(flush_dcache_page);
 
 /* Defined in arch/parisc/kernel/pacache.S */
@@ -395,17 +400,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -440,17 +434,26 @@ void __init parisc_setup_cache_timing(void)
 }
 
 extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
 
 void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 {
+#if 1
+	/* Clear user page using alias region.  */
+#if 0
 	unsigned long flags;
 
 	purge_kernel_dcache_page((unsigned long)page);
 	purge_tlb_start(flags);
 	pdtlb_kernel(page);
 	purge_tlb_end(flags);
+#endif
+
 	clear_user_page_asm(page, vaddr);
+#else
+	/* Clear user page using kernel mapping.  */
+	clear_page_asm(page);
+	flush_kernel_dcache_page_asm(page);
+#endif
 }
 EXPORT_SYMBOL(clear_user_page);
 
@@ -469,22 +472,15 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 		    struct page *pg)
 {
 	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
-	if (!parisc_requires_coherency())
-		flush_kernel_dcache_page_asm(vto);
+#if 0
+	copy_user_page_asm(vto, vfrom, vaddr);
+#else
+	copy_page_asm(vto, vfrom);
+	flush_kernel_dcache_page_asm(vto);
+#endif
 }
 EXPORT_SYMBOL(copy_user_page);
 
-#ifdef CONFIG_PA8X00
-
-void kunmap_parisc(void *addr)
-{
-	if (parisc_requires_coherency())
-		flush_kernel_dcache_page_addr(addr);
-}
-EXPORT_SYMBOL(kunmap_parisc);
-#endif
-
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {
@@ -577,3 +573,25 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 		__flush_cache_page(vma, vmaddr);
 
 }
+
+void *kmap_parisc(struct page *page)
+{
+	/* this is a killer.  There's no easy way to test quickly if
+	 * this page is dirty in any userspace.  Additionally, for
+	 * kernel alterations of the page, we'd need it invalidated
+	 * here anyway, so currently flush (and invalidate)
+	 * universally */
+	flush_user_dcache_page_internal(page_mapping(page), page);
+	return page_address(page);
+}
+EXPORT_SYMBOL(kmap_parisc);
+
+void kunmap_parisc(void *addr)
+{
+	/* flush and invalidate the kernel mapping.  We need the
+	 * invalidate so we don't have stale data at this cache
+	 * location the next time the page is mapped */
+	flush_kernel_dcache_page_addr(addr);
+}
+EXPORT_SYMBOL(kunmap_parisc);
+
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3a44f7f..42dbf32 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -45,7 +45,7 @@
 	.level 2.0
 #endif
 
-	.import         pa_dbit_lock,data
+	.import         pa_pte_lock,data
 
 	/* space_to_prot macro creates a prot id from a space id */
 
@@ -364,32 +364,6 @@
 	.align		32
 	.endm
 
-	/* The following are simple 32 vs 64 bit instruction
-	 * abstractions for the macros */
-	.macro		EXTR	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	extrd,u		\reg1,32+(\start),\length,\reg2
-#else
-	extrw,u		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEP	reg1,start,length,reg2
-#ifdef CONFIG_64BIT
-	depd		\reg1,32+(\start),\length,\reg2
-#else
-	depw		\reg1,\start,\length,\reg2
-#endif
-	.endm
-
-	.macro		DEPI	val,start,length,reg
-#ifdef CONFIG_64BIT
-	depdi		\val,32+(\start),\length,\reg
-#else
-	depwi		\val,\start,\length,\reg
-#endif
-	.endm
-
 	/* In LP64, the space contains part of the upper 32 bits of the
 	 * fault.  We have to extract this and place it in the va,
 	 * zeroing the corresponding bits in the space register */
@@ -442,19 +416,19 @@
 	 */
 	.macro		L2_ptep	pmd,pte,index,va,fault
 #if PT_NLEVELS == 3
-	EXTR		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
+	extru		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
 #else
-	EXTR		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
+	extru		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 #endif
-	DEP             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	dep             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	copy		%r0,\pte
 	ldw,s		\index(\pmd),\pmd
 	bb,>=,n		\pmd,_PxD_PRESENT_BIT,\fault
-	DEP		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
+	dep		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
 	copy		\pmd,%r9
 	SHLREG		%r9,PxD_VALUE_SHIFT,\pmd
-	EXTR		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
-	DEP		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
+	extru		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
+	dep		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
 	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
 	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
@@ -488,13 +462,46 @@
 	L2_ptep		\pgd,\pte,\index,\va,\fault
 	.endm
 
+	/* SMP lock for consistent PTE updates.  Unlocks and jumps
+	   to FAULT if the page is not present.  Note the preceeding
+	   load of the PTE can't be deleted since we can't fault holding
+	   the lock.  */ 
+	.macro		pte_lock	ptep,pte,spc,tmp,tmp1,fault
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n        0,\spc,2f
+	load32		PA(pa_pte_lock),\tmp1
+1:
+	LDCW		0(\tmp1),\tmp
+	cmpib,COND(=)         0,\tmp,1b
+	nop
+	LDREG		%r0(\ptep),\pte
+	bb,<,n		\pte,_PAGE_PRESENT_BIT,2f
+	ldi             1,\tmp
+	stw             \tmp,0(\tmp1)
+	b,n		\fault
+2:
+#endif
+	.endm
+
+	.macro		pte_unlock	spc,tmp,tmp1
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n        0,\spc,1f
+	ldi             1,\tmp
+	stw             \tmp,0(\tmp1)
+1:
+#endif
+	.endm
+
 	/* Set the _PAGE_ACCESSED bit of the PTE.  Be clever and
 	 * don't needlessly dirty the cache line if it was already set */
-	.macro		update_ptep	ptep,pte,tmp,tmp1
-	ldi		_PAGE_ACCESSED,\tmp1
-	or		\tmp1,\pte,\tmp
-	and,COND(<>)	\tmp1,\pte,%r0
-	STREG		\tmp,0(\ptep)
+	.macro		update_ptep	ptep,pte,spc,tmp,tmp1,fault
+	bb,<,n		\pte,_PAGE_ACCESSED_BIT,3f
+	pte_lock	\ptep,\pte,\spc,\tmp,\tmp1,\fault
+	ldi		_PAGE_ACCESSED,\tmp
+	or		\tmp,\pte,\pte
+	STREG		\pte,0(\ptep)
+	pte_unlock	\spc,\tmp,\tmp1
+3:
 	.endm
 
 	/* Set the dirty bit (and accessed bit).  No need to be
@@ -605,7 +612,7 @@
 	depdi		0,31,32,\tmp
 #endif
 	copy		\va,\tmp1
-	DEPI		0,31,23,\tmp1
+	depi		0,31,23,\tmp1
 	cmpb,COND(<>),n	\tmp,\tmp1,\fault
 	ldi		(_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot
 	depd,z		\prot,8,7,\prot
@@ -622,6 +629,39 @@
 	or		%r26,%r0,\pte
 	.endm 
 
+	/* Save PTE for recheck if SMP.  */
+	.macro		save_pte	pte,tmp
+#ifdef CONFIG_SMP
+	copy		\pte,\tmp
+#endif
+	.endm
+
+	/* Reload the PTE and purge the data TLB entry if the new
+	   value is different from the old one.  */
+	.macro		dtlb_recheck	ptep,old_pte,spc,va,tmp
+#ifdef CONFIG_SMP
+	LDREG		%r0(\ptep),\tmp
+	cmpb,COND(=),n	\old_pte,\tmp,1f
+	mfsp		%sr1,\tmp
+	mtsp		\spc,%sr1
+	pdtlb,l		%r0(%sr1,\va)
+	mtsp		\tmp,%sr1
+1:
+#endif
+	.endm
+
+	.macro		itlb_recheck	ptep,old_pte,spc,va,tmp
+#ifdef CONFIG_SMP
+	LDREG		%r0(\ptep),\tmp
+	cmpb,COND(=),n	\old_pte,\tmp,1f
+	mfsp		%sr1,\tmp
+	mtsp		\spc,%sr1
+	pitlb,l		%r0(%sr1,\va)
+	mtsp		\tmp,%sr1
+1:
+#endif
+	.endm
+
 
 	/*
 	 * Align fault_vector_20 on 4K boundary so that both
@@ -758,6 +798,10 @@ ENTRY(__kernel_thread)
 
 	STREG	%r22, PT_GR22(%r1)	/* save r22 (arg5) */
 	copy	%r0, %r22		/* user_tid */
+	copy	%r0, %r21		/* child_tid */
+#else
+	stw	%r0, -52(%r30)	     	/* user_tid */
+	stw	%r0, -56(%r30)	     	/* child_tid */
 #endif
 	STREG	%r26, PT_GR26(%r1)  /* Store function & argument for child */
 	STREG	%r25, PT_GR25(%r1)
@@ -765,7 +809,7 @@ ENTRY(__kernel_thread)
 	ldo	CLONE_VM(%r26), %r26   /* Force CLONE_VM since only init_mm */
 	or	%r26, %r24, %r26      /* will have kernel mappings.	 */
 	ldi	1, %r25			/* stack_start, signals kernel thread */
-	stw	%r0, -52(%r30)	     	/* user_tid */
+	ldi	0, %r23			/* child_stack_size */
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
@@ -972,7 +1016,10 @@ intr_check_sig:
 	BL	do_notify_resume,%r2
 	copy	%r16, %r26			/* struct pt_regs *regs */
 
-	b,n	intr_check_sig
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 intr_restore:
 	copy            %r16,%r29
@@ -997,13 +1044,6 @@ intr_restore:
 
 	rfi
 	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
 
 #ifndef CONFIG_PREEMPT
 # define intr_do_preempt	intr_restore
@@ -1026,14 +1066,12 @@ intr_do_resched:
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	ldil	L%intr_check_sig, %r2
-#ifndef CONFIG_64BIT
-	b	schedule
-#else
-	load32	schedule, %r20
-	bv	%r0(%r20)
-#endif
-	ldo	R%intr_check_sig(%r2), %r2
+	BL	schedule,%r2
+	nop
+	mfctl   %cr30,%r16		/* Reload */
+	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
+	b	intr_check_sig
+	ldo	TASK_REGS(%r16),%r16
 
 	/* preempt the current task on returning to kernel
 	 * mode from an interrupt, iff need_resched is set,
@@ -1214,11 +1252,12 @@ dtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,dtlb_check_alias_20w
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1,dtlb_check_alias_20w
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-	
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1238,11 +1277,10 @@ nadtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,nadtlb_check_flush_20w
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1272,8 +1310,9 @@ dtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_11
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1,dtlb_check_alias_11
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
@@ -1283,6 +1322,7 @@ dtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1321,11 +1361,9 @@ nadtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_11
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
-
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
@@ -1333,6 +1371,7 @@ nadtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1368,13 +1407,15 @@ dtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_20
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1,dtlb_check_alias_20
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 
 	idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1394,13 +1435,13 @@ nadtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_20
 
-	update_ptep	ptp,pte,t0,t1
-
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 	
         idtlbt          pte,prot
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1508,11 +1549,12 @@ itlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1,itlb_fault
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-	
 	iitlbt          pte,prot
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1526,8 +1568,9 @@ itlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1,itlb_fault
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
@@ -1537,6 +1580,7 @@ itlb_miss_11:
 	iitlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1548,13 +1592,15 @@ itlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	update_ptep	ptp,pte,spc,t0,t1,itlb_fault
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0	
 
 	iitlbt          pte,prot
+	itlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1570,29 +1616,14 @@ dbit_trap_20w:
 
 	L3_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20w
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20w:
-	LDCW		0(t0),t1
-	cmpib,COND(=)         0,t1,dbit_spin_20w
-	nop
-
-dbit_nolock_20w:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
-		
 	idtlbt          pte,prot
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20w
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20w:
-#endif
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1606,35 +1637,21 @@ dbit_trap_11:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_11
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_11:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_11
-	nop
-
-dbit_nolock_11:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb_11	spc,pte,prot
 
-	mfsp            %sr1,t1  /* Save sr1 so we can use it in tlb inserts */
+	mfsp            %sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
 	idtlba		pte,(%sr1,va)
 	idtlbp		prot,(%sr1,va)
 
-	mtsp            t1, %sr1     /* Restore sr1 */
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_11
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_11:
-#endif
+	mtsp            t0, %sr1     /* Restore sr1 */
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1646,32 +1663,17 @@ dbit_trap_20:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_20
-	nop
-
-dbit_nolock_20:
-#endif
-	update_dirty	ptp,pte,t1
+	pte_lock	ptp,pte,spc,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t0
+	pte_unlock	spc,t0,t1
 
+	save_pte	pte,t1
 	make_insert_tlb	spc,pte,prot
 
-	f_extend	pte,t1
+	f_extend	pte,t0
 	
         idtlbt          pte,prot
-
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20:
-#endif
+	dtlb_recheck	ptp,t1,spc,va,t0
 
 	rfir
 	nop
@@ -1772,9 +1774,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1804,7 +1806,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1823,8 +1825,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1847,7 +1850,9 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
@@ -2076,9 +2081,10 @@ syscall_restore:
 	LDREG	TASK_PT_GR31(%r1),%r31	   /* restore syscall rp */
 
 	/* NOTE: We use rsm/ssm pair to make this operation atomic */
+	LDREG   TASK_PT_GR30(%r1),%r1              /* Get user sp */
 	rsm     PSW_SM_I, %r0
-	LDREG   TASK_PT_GR30(%r1),%r30             /* restore user sp */
-	mfsp	%sr3,%r1			   /* Get users space id */
+	copy    %r1,%r30                           /* Restore user sp */
+	mfsp    %sr3,%r1                           /* Get user space id */
 	mtsp    %r1,%sr7                           /* Restore sr7 */
 	ssm     PSW_SM_I, %r0
 
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 09b77b2..b2f0d3d 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -277,7 +277,7 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -288,54 +288,54 @@ ENTRY(copy_user_page_asm)
 	 * GCC probably can do this just as well.
 	 */
 
-	ldd		0(%r25), %r19
+	ldd		0(%r25), %r20
 	ldi		(PAGE_SIZE / 128), %r1
 
 	ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
 	ldw		128(%r25), %r0		/* prefetch 2 */
 
-1:	ldd		8(%r25), %r20
+1:	ldd		8(%r25), %r21
 	ldw		192(%r25), %r0		/* prefetch 3 */
 	ldw		256(%r25), %r0		/* prefetch 4 */
 
-	ldd		16(%r25), %r21
-	ldd		24(%r25), %r22
-	std		%r19, 0(%r26)
-	std		%r20, 8(%r26)
-
-	ldd		32(%r25), %r19
-	ldd		40(%r25), %r20
-	std		%r21, 16(%r26)
-	std		%r22, 24(%r26)
-
-	ldd		48(%r25), %r21
-	ldd		56(%r25), %r22
-	std		%r19, 32(%r26)
-	std		%r20, 40(%r26)
-
-	ldd		64(%r25), %r19
-	ldd		72(%r25), %r20
-	std		%r21, 48(%r26)
-	std		%r22, 56(%r26)
-
-	ldd		80(%r25), %r21
-	ldd		88(%r25), %r22
-	std		%r19, 64(%r26)
-	std		%r20, 72(%r26)
-
-	ldd		 96(%r25), %r19
-	ldd		104(%r25), %r20
-	std		%r21, 80(%r26)
-	std		%r22, 88(%r26)
-
-	ldd		112(%r25), %r21
-	ldd		120(%r25), %r22
-	std		%r19, 96(%r26)
-	std		%r20, 104(%r26)
+	ldd		16(%r25), %r22
+	ldd		24(%r25), %r24
+	std		%r20, 0(%r26)
+	std		%r21, 8(%r26)
+
+	ldd		32(%r25), %r20
+	ldd		40(%r25), %r21
+	std		%r22, 16(%r26)
+	std		%r24, 24(%r26)
+
+	ldd		48(%r25), %r22
+	ldd		56(%r25), %r24
+	std		%r20, 32(%r26)
+	std		%r21, 40(%r26)
+
+	ldd		64(%r25), %r20
+	ldd		72(%r25), %r21
+	std		%r22, 48(%r26)
+	std		%r24, 56(%r26)
+
+	ldd		80(%r25), %r22
+	ldd		88(%r25), %r24
+	std		%r20, 64(%r26)
+	std		%r21, 72(%r26)
+
+	ldd		96(%r25), %r20
+	ldd		104(%r25), %r21
+	std		%r22, 80(%r26)
+	std		%r24, 88(%r26)
+
+	ldd		112(%r25), %r22
+	ldd		120(%r25), %r24
+	std		%r20, 96(%r26)
+	std		%r21, 104(%r26)
 
 	ldo		128(%r25), %r25
-	std		%r21, 112(%r26)
-	std		%r22, 120(%r26)
+	std		%r22, 112(%r26)
+	std		%r24, 120(%r26)
 	ldo		128(%r26), %r26
 
 	/* conditional branches nullify on forward taken branch, and on
@@ -343,7 +343,7 @@ ENTRY(copy_user_page_asm)
 	 * The ldd should only get executed if the branch is taken.
 	 */
 	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
-	ldd		0(%r25), %r19		/* start next loads */
+	ldd		0(%r25), %r20		/* start next loads */
 
 #else
 
@@ -354,52 +354,116 @@ ENTRY(copy_user_page_asm)
 	 * the full 64 bit register values on interrupt, we can't
 	 * use ldd/std on a 32 bit kernel.
 	 */
-	ldw		0(%r25), %r19
+	ldw		0(%r25), %r20
 	ldi		(PAGE_SIZE / 64), %r1
 
 1:
-	ldw		4(%r25), %r20
-	ldw		8(%r25), %r21
-	ldw		12(%r25), %r22
-	stw		%r19, 0(%r26)
-	stw		%r20, 4(%r26)
-	stw		%r21, 8(%r26)
-	stw		%r22, 12(%r26)
-	ldw		16(%r25), %r19
-	ldw		20(%r25), %r20
-	ldw		24(%r25), %r21
-	ldw		28(%r25), %r22
-	stw		%r19, 16(%r26)
-	stw		%r20, 20(%r26)
-	stw		%r21, 24(%r26)
-	stw		%r22, 28(%r26)
-	ldw		32(%r25), %r19
-	ldw		36(%r25), %r20
-	ldw		40(%r25), %r21
-	ldw		44(%r25), %r22
-	stw		%r19, 32(%r26)
-	stw		%r20, 36(%r26)
-	stw		%r21, 40(%r26)
-	stw		%r22, 44(%r26)
-	ldw		48(%r25), %r19
-	ldw		52(%r25), %r20
-	ldw		56(%r25), %r21
-	ldw		60(%r25), %r22
-	stw		%r19, 48(%r26)
-	stw		%r20, 52(%r26)
+	ldw		4(%r25), %r21
+	ldw		8(%r25), %r22
+	ldw		12(%r25), %r24
+	stw		%r20, 0(%r26)
+	stw		%r21, 4(%r26)
+	stw		%r22, 8(%r26)
+	stw		%r24, 12(%r26)
+	ldw		16(%r25), %r20
+	ldw		20(%r25), %r21
+	ldw		24(%r25), %r22
+	ldw		28(%r25), %r24
+	stw		%r20, 16(%r26)
+	stw		%r21, 20(%r26)
+	stw		%r22, 24(%r26)
+	stw		%r24, 28(%r26)
+	ldw		32(%r25), %r20
+	ldw		36(%r25), %r21
+	ldw		40(%r25), %r22
+	ldw		44(%r25), %r24
+	stw		%r20, 32(%r26)
+	stw		%r21, 36(%r26)
+	stw		%r22, 40(%r26)
+	stw		%r24, 44(%r26)
+	ldw		48(%r25), %r20
+	ldw		52(%r25), %r21
+	ldw		56(%r25), %r22
+	ldw		60(%r25), %r24
+	stw		%r20, 48(%r26)
+	stw		%r21, 52(%r26)
 	ldo		64(%r25), %r25
-	stw		%r21, 56(%r26)
-	stw		%r22, 60(%r26)
+	stw		%r22, 56(%r26)
+	stw		%r24, 60(%r26)
 	ldo		64(%r26), %r26
 	addib,COND(>),n	-1, %r1, 1b
-	ldw		0(%r25), %r19
+	ldw		0(%r25), %r20
 #endif
 	bv		%r0(%r2)
 	nop
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
+
+ENTRY(clear_page_asm)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+#ifdef CONFIG_64BIT
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:
+	std		%r0, 0(%r26)
+	std		%r0, 8(%r26)
+	std		%r0, 16(%r26)
+	std		%r0, 24(%r26)
+	std		%r0, 32(%r26)
+	std		%r0, 40(%r26)
+	std		%r0, 48(%r26)
+	std		%r0, 56(%r26)
+	std		%r0, 64(%r26)
+	std		%r0, 72(%r26)
+	std		%r0, 80(%r26)
+	std		%r0, 88(%r26)
+	std		%r0, 96(%r26)
+	std		%r0, 104(%r26)
+	std		%r0, 112(%r26)
+	std		%r0, 120(%r26)
+
+	/* Conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
+
+#else
+
+	ldi		(PAGE_SIZE / 64), %r1
+
+1:
+	stw		%r0, 0(%r26)
+	stw		%r0, 4(%r26)
+	stw		%r0, 8(%r26)
+	stw		%r0, 12(%r26)
+	stw		%r0, 16(%r26)
+	stw		%r0, 20(%r26)
+	stw		%r0, 24(%r26)
+	stw		%r0, 28(%r26)
+	stw		%r0, 32(%r26)
+	stw		%r0, 36(%r26)
+	stw		%r0, 40(%r26)
+	stw		%r0, 44(%r26)
+	stw		%r0, 48(%r26)
+	stw		%r0, 52(%r26)
+	stw		%r0, 56(%r26)
+	stw		%r0, 60(%r26)
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		64(%r26), %r26
+#endif
+
+	bv		%r0(%r2)
+	nop
+	.exit
+
+	.procend
+ENDPROC(clear_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,7 +486,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
 
 	/*
 	 * We can't do this since copy_user_page is used to bring in
@@ -449,9 +512,9 @@ ENTRY(copy_user_page_asm)
 	ldil		L%(TMPALIAS_MAP_START), %r28
 	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
-	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
+	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
@@ -464,12 +527,88 @@ ENTRY(copy_user_page_asm)
 	depwi		1, 9,1, %r29		/* Form aliased virtual address 'from' */
 #endif
 
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock, %r1
+	ldo		R%pa_tlb_lock(%r1), %r24
+	rsm		PSW_SM_I, %r22
+1:
+	LDCW		0(%r24),%r25
+	cmpib,COND(=)	0,%r25,1b
+	nop
+#endif
+
 	/* Purge any old translations */
 
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
 
-	ldi		64, %r1
+#ifdef CONFIG_SMP
+	ldi		1,%r25
+	stw		%r25,0(%r24)
+	mtsm		%r22
+#endif
+
+#ifdef CONFIG_64BIT
+
+	ldd		0(%r29), %r20
+	ldi		(PAGE_SIZE / 128), %r1
+
+	ldw		64(%r29), %r0		/* prefetch 1 cacheline ahead */
+	ldw		128(%r29), %r0		/* prefetch 2 */
+
+2:	ldd		8(%r29), %r21
+	ldw		192(%r29), %r0		/* prefetch 3 */
+	ldw		256(%r29), %r0		/* prefetch 4 */
+
+	ldd		16(%r29), %r22
+	ldd		24(%r29), %r24
+	std		%r20, 0(%r28)
+	std		%r21, 8(%r28)
+
+	ldd		32(%r29), %r20
+	ldd		40(%r29), %r21
+	std		%r22, 16(%r28)
+	std		%r24, 24(%r28)
+
+	ldd		48(%r29), %r22
+	ldd		56(%r29), %r24
+	std		%r20, 32(%r28)
+	std		%r21, 40(%r28)
+
+	ldd		64(%r29), %r20
+	ldd		72(%r29), %r21
+	std		%r22, 48(%r28)
+	std		%r24, 56(%r28)
+
+	ldd		80(%r29), %r22
+	ldd		88(%r29), %r24
+	std		%r20, 64(%r28)
+	std		%r21, 72(%r28)
+
+	ldd		96(%r29), %r20
+	ldd		104(%r29), %r21
+	std		%r22, 80(%r28)
+	std		%r24, 88(%r28)
+
+	ldd		112(%r29), %r22
+	ldd		120(%r29), %r24
+	std		%r20, 96(%r28)
+	std		%r21, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r22, 112(%r28)
+	std		%r24, 120(%r28)
+
+	fdc		0(%r28)
+	ldo		64(%r28), %r28
+	fdc		0(%r28)
+	ldo		64(%r28), %r28
+	addib,COND(>),n	-1, %r1, 2b
+	ldd		0(%r29), %r20		/* start next loads */
+
+#else
+
+	ldi		(PAGE_SIZE / 64), %r1
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,53 +619,57 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
-	ldw		4(%r29), %r20
-	ldw		8(%r29), %r21
-	ldw		12(%r29), %r22
-	stw		%r19, 0(%r28)
-	stw		%r20, 4(%r28)
-	stw		%r21, 8(%r28)
-	stw		%r22, 12(%r28)
-	ldw		16(%r29), %r19
-	ldw		20(%r29), %r20
-	ldw		24(%r29), %r21
-	ldw		28(%r29), %r22
-	stw		%r19, 16(%r28)
-	stw		%r20, 20(%r28)
-	stw		%r21, 24(%r28)
-	stw		%r22, 28(%r28)
-	ldw		32(%r29), %r19
-	ldw		36(%r29), %r20
-	ldw		40(%r29), %r21
-	ldw		44(%r29), %r22
-	stw		%r19, 32(%r28)
-	stw		%r20, 36(%r28)
-	stw		%r21, 40(%r28)
-	stw		%r22, 44(%r28)
-	ldw		48(%r29), %r19
-	ldw		52(%r29), %r20
-	ldw		56(%r29), %r21
-	ldw		60(%r29), %r22
-	stw		%r19, 48(%r28)
-	stw		%r20, 52(%r28)
-	stw		%r21, 56(%r28)
-	stw		%r22, 60(%r28)
-	ldo		64(%r28), %r28
-	addib,COND(>)		-1, %r1,1b
+2:
+	ldw		0(%r29), %r20
+	ldw		4(%r29), %r21
+	ldw		8(%r29), %r22
+	ldw		12(%r29), %r24
+	stw		%r20, 0(%r28)
+	stw		%r21, 4(%r28)
+	stw		%r22, 8(%r28)
+	stw		%r24, 12(%r28)
+	ldw		16(%r29), %r20
+	ldw		20(%r29), %r21
+	ldw		24(%r29), %r22
+	ldw		28(%r29), %r24
+	stw		%r20, 16(%r28)
+	stw		%r21, 20(%r28)
+	stw		%r22, 24(%r28)
+	stw		%r24, 28(%r28)
+	ldw		32(%r29), %r20
+	ldw		36(%r29), %r21
+	ldw		40(%r29), %r22
+	ldw		44(%r29), %r24
+	stw		%r20, 32(%r28)
+	stw		%r21, 36(%r28)
+	stw		%r22, 40(%r28)
+	stw		%r24, 44(%r28)
+	ldw		48(%r29), %r20
+	ldw		52(%r29), %r21
+	ldw		56(%r29), %r22
+	ldw		60(%r29), %r24
+	stw		%r20, 48(%r28)
+	stw		%r21, 52(%r28)
+	stw		%r22, 56(%r28)
+	stw		%r24, 60(%r28)
+	fdc		0(%r28)
+	ldo		32(%r28), %r28
+	fdc		0(%r28)
+	ldo		32(%r28), %r28
+	addib,COND(>)		-1, %r1,2b
 	ldo		64(%r29), %r29
 
+#endif
+
+	sync
 	bv		%r0(%r2)
 	nop
 	.exit
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -548,17 +691,33 @@ ENTRY(__clear_user_page_asm)
 	depwi		0, 31,12, %r28		/* Clear any offset bits */
 #endif
 
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock, %r1
+	ldo		R%pa_tlb_lock(%r1), %r24
+	rsm		PSW_SM_I, %r22
+1:
+	LDCW		0(%r24),%r25
+	cmpib,COND(=)	0,%r25,1b
+	nop
+#endif
+
 	/* Purge any old translation */
 
 	pdtlb		0(%r28)
 
+#ifdef CONFIG_SMP
+	ldi		1,%r25
+	stw		%r25,0(%r24)
+	mtsm		%r22
+#endif
+
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
 
 	/* PREFETCH (Write) has not (yet) been proven to help here */
 	/* #define	PREFETCHW_OP	ldd		256(%0), %r0 */
 
-1:	std		%r0, 0(%r28)
+2:	std		%r0, 0(%r28)
 	std		%r0, 8(%r28)
 	std		%r0, 16(%r28)
 	std		%r0, 24(%r28)
@@ -574,13 +733,13 @@ ENTRY(__clear_user_page_asm)
 	std		%r0, 104(%r28)
 	std		%r0, 112(%r28)
 	std		%r0, 120(%r28)
-	addib,COND(>)		-1, %r1, 1b
+	addib,COND(>)		-1, %r1, 2b
 	ldo		128(%r28), %r28
 
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
+2:
 	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
@@ -597,7 +756,7 @@ ENTRY(__clear_user_page_asm)
 	stw		%r0, 52(%r28)
 	stw		%r0, 56(%r28)
 	stw		%r0, 60(%r28)
-	addib,COND(>)		-1, %r1, 1b
+	addib,COND(>)		-1, %r1, 2b
 	ldo		64(%r28), %r28
 #endif	/* CONFIG_64BIT */
 
@@ -606,7 +765,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_kernel_dcache_page_asm)
 	.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index df65366..a5314df 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -159,4 +159,5 @@ EXPORT_SYMBOL(_mcount);
 #endif
 
 /* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
+EXPORT_SYMBOL(clear_page_asm);
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index cb71f3d..84b3239 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -128,6 +128,14 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_INFO "The 32-bit Kernel has started...\n");
 #endif
 
+	/* Consistency check on the size and alignments of our spinlocks */
+#ifdef CONFIG_SMP
+	BUILD_BUG_ON(sizeof(arch_spinlock_t) != __PA_LDCW_ALIGNMENT);
+	BUG_ON((unsigned long)&__atomic_hash[0] & (__PA_LDCW_ALIGNMENT-1));
+	BUG_ON((unsigned long)&__atomic_hash[1] & (__PA_LDCW_ALIGNMENT-1));
+#endif
+	BUILD_BUG_ON((1<<L1_CACHE_SHIFT) != L1_CACHE_BYTES);
+
 	pdc_console_init();
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f5f9602..68e75ce 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -47,18 +47,17 @@ ENTRY(linux_gateway_page)
 	KILL_INSN
 	.endr
 
-	/* ADDRESS 0xb0 to 0xb4, lws uses 1 insns for entry */
+	/* ADDRESS 0xb0 to 0xb8, lws uses two insns for entry */
 	/* Light-weight-syscall entry must always be located at 0xb0 */
 	/* WARNING: Keep this number updated with table size changes */
 #define __NR_lws_entries (2)
 
 lws_entry:
-	/* Unconditional branch to lws_start, located on the 
-	   same gateway page */
-	b,n	lws_start
+	gate	lws_start, %r0		/* increase privilege */
+	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
 
-	/* Fill from 0xb4 to 0xe0 */
-	.rept 11
+	/* Fill from 0xb8 to 0xe0 */
+	.rept 10
 	KILL_INSN
 	.endr
 
@@ -423,9 +422,6 @@ tracesys_sigexit:
 
 	*********************************************************/
 lws_start:
-	/* Gate and ensure we return to userspace */
-	gate	.+8, %r0
-	depi	3, 31, 2, %r31	/* Ensure we return to userspace */
 
 #ifdef CONFIG_64BIT
 	/* FIXME: If we are a 64-bit kernel just
@@ -442,7 +438,7 @@ lws_start:
 #endif	
 
         /* Is the lws entry number valid? */
-	comiclr,>>=	__NR_lws_entries, %r20, %r0
+	comiclr,>>	__NR_lws_entries, %r20, %r0
 	b,n	lws_exit_nosys
 
 	/* WARNING: Trashing sr2 and sr3 */
@@ -473,7 +469,7 @@ lws_exit:
 	/* now reset the lowest bit of sp if it was set */
 	xor	%r30,%r1,%r30
 #endif
-	be,n	0(%sr3, %r31)
+	be,n	0(%sr7, %r31)
 
 
 	
@@ -529,7 +525,6 @@ lws_compare_and_swap32:
 #endif
 
 lws_compare_and_swap:
-#ifdef CONFIG_SMP
 	/* Load start of lock table */
 	ldil	L%lws_lock_start, %r20
 	ldo	R%lws_lock_start(%r20), %r28
@@ -572,8 +567,6 @@ cas_wouldblock:
 	ldo	2(%r0), %r28				/* 2nd case */
 	b	lws_exit				/* Contended... */
 	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
-#endif
-/* CONFIG_SMP */
 
 	/*
 		prev = *addr;
@@ -601,13 +594,11 @@ cas_action:
 1:	ldw	0(%sr3,%r26), %r28
 	sub,<>	%r28, %r25, %r0
 2:	stw	%r24, 0(%sr3,%r26)
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	/* Clear thread register indicator */
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	/* Return to userspace, set no error */
 	b	lws_exit
@@ -615,12 +606,10 @@ cas_action:
 
 3:		
 	/* Error occured on load or store */
-#ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# if ENABLE_LWS_DEBUG
+#if ENABLE_LWS_DEBUG
 	stw	%r0, 4(%sr2,%r20)
-# endif
 #endif
 	b	lws_exit
 	ldo	-EFAULT(%r0),%r21	/* set errno */
@@ -672,7 +661,6 @@ ENTRY(sys_call_table64)
 END(sys_call_table64)
 #endif
 
-#ifdef CONFIG_SMP
 	/*
 		All light-weight-syscall atomic operations 
 		will use this set of locks 
@@ -694,8 +682,6 @@ ENTRY(lws_lock_start)
 	.endr
 END(lws_lock_start)
 	.previous
-#endif
-/* CONFIG_SMP for lws_lock_start */
 
 .end
 
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 8b58bf0..804b024 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -47,7 +47,7 @@
 			  /*  dumped to the console via printk)          */
 
 #if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
-DEFINE_SPINLOCK(pa_dbit_lock);
+DEFINE_SPINLOCK(pa_pte_lock);
 #endif
 
 static void parisc_show_stack(struct task_struct *task, unsigned long *sp,
diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c
index 353963d..bae6a86 100644
--- a/arch/parisc/lib/bitops.c
+++ b/arch/parisc/lib/bitops.c
@@ -15,6 +15,9 @@
 arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
 	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
 };
+arch_spinlock_t __atomic_user_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
+	[0 ... (ATOMIC_HASH_SIZE-1)]  = __ARCH_SPIN_LOCK_UNLOCKED
+};
 #endif
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/math-emu/decode_exc.c b/arch/parisc/math-emu/decode_exc.c
index 3ca1c61..27a7492 100644
--- a/arch/parisc/math-emu/decode_exc.c
+++ b/arch/parisc/math-emu/decode_exc.c
@@ -342,6 +342,7 @@ decode_fpu(unsigned int Fpu_register[], unsigned int trap_counts[])
 		return SIGNALCODE(SIGFPE, FPE_FLTINV);
 	  case DIVISIONBYZEROEXCEPTION:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
+		Clear_excp_register(exception_index);
 	  	return SIGNALCODE(SIGFPE, FPE_FLTDIV);
 	  case INEXACTEXCEPTION:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
diff --git a/mm/memory.c b/mm/memory.c
index 09e4b1b..21c2916 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -616,7 +616,7 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	 * in the parent and the child
 	 */
 	if (is_cow_mapping(vm_flags)) {
-		ptep_set_wrprotect(src_mm, addr, src_pte);
+		ptep_set_wrprotect(vma, src_mm, addr, src_pte);
 		pte = pte_wrprotect(pte);
 	}
 

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: PA caches (was: C8000 cpu upgrade problem)
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On Tue, 2010-10-26 at 21:29 -0400, John David Anglin wrote:
> > - shared memory --- there is SHMLBA boundary that causes that all
> mappings 
> > are aligned to this boundary --- it is **WRONG** in the current
> kernel!!! 
> > It is only 4MB and should be 16MB!!!
> 
> James has said that the max for all PA-RISC implementations is
> 4 MB.  The value is returned by the PDC_CACHE call.  Maybe a BUG_ON is
> called for.  The alias boundary can be determined by the alias field
> in the D_conf return value.

Why is it I get blamed for everything cache related on parisc?  The
statement in the manuals that the equivalency modulus is 16MB was left
for future expansion.  However, given PA8900 is the last in the series,
there is no future expansion.  John Marvin (I think it was) from the HP
processor group confirmed that the largest equivalency modulus for any
produced parisc processor is 4MB, so that's what we use in the kernel.

James


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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
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Subject: Re: PA caches (was: C8000 cpu upgrade problem)
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On Tue, 26 Oct 2010, James Bottomley wrote:

> On Tue, 2010-10-26 at 21:29 -0400, John David Anglin wrote:
> > > - shared memory --- there is SHMLBA boundary that causes that all
> > mappings 
> > > are aligned to this boundary --- it is **WRONG** in the current
> > kernel!!! 
> > > It is only 4MB and should be 16MB!!!
> > 
> > James has said that the max for all PA-RISC implementations is
> > 4 MB.  The value is returned by the PDC_CACHE call.  Maybe a BUG_ON is
> > called for.  The alias boundary can be determined by the alias field
> > in the D_conf return value.
> 
> Why is it I get blamed for everything cache related on parisc?  The

You don't get blamed, we're just trying to find bugs :)

> statement in the manuals that the equivalency modulus is 16MB was left
> for future expansion.  However, given PA8900 is the last in the series,
> there is no future expansion.  John Marvin (I think it was) from the HP
> processor group confirmed that the largest equivalency modulus for any
> produced parisc processor is 4MB, so that's what we use in the kernel.
> 
> James

The largest L2 cache size is 64MB --- so if the cache is 4-way 
associative, the equivalency distance is 16MB (as the manual says).

If the equivalency distance were 4MB, the L2 cache would have to be 16-way 
(or the cache would have to be physically indexed and you wouldn't have to 
care about its consistency at all).

Mikulas
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From - Thu Nov 08 21:06:25 2018
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Subject: Re: PA caches (was: C8000 cpu upgrade problem)
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On Wed, 27 Oct 2010, Mikulas Patocka wrote:

> 
> 
> On Tue, 26 Oct 2010, James Bottomley wrote:
> 
> > On Tue, 2010-10-26 at 21:29 -0400, John David Anglin wrote:
> > > > - shared memory --- there is SHMLBA boundary that causes that all
> > > mappings 
> > > > are aligned to this boundary --- it is **WRONG** in the current
> > > kernel!!! 
> > > > It is only 4MB and should be 16MB!!!
> > > 
> > > James has said that the max for all PA-RISC implementations is
> > > 4 MB.  The value is returned by the PDC_CACHE call.  Maybe a BUG_ON is
> > > called for.  The alias boundary can be determined by the alias field
> > > in the D_conf return value.
> > 
> > Why is it I get blamed for everything cache related on parisc?  The
> 
> You don't get blamed, we're just trying to find bugs :)
> 
> > statement in the manuals that the equivalency modulus is 16MB was left
> > for future expansion.  However, given PA8900 is the last in the series,
> > there is no future expansion.  John Marvin (I think it was) from the HP
> > processor group confirmed that the largest equivalency modulus for any
> > produced parisc processor is 4MB, so that's what we use in the kernel.
> > 
> > James
> 
> The largest L2 cache size is 64MB --- so if the cache is 4-way 
> associative, the equivalency distance is 16MB (as the manual says).
> 
> If the equivalency distance were 4MB, the L2 cache would have to be 16-way 
> (or the cache would have to be physically indexed and you wouldn't have to 
> care about its consistency at all).
> 
> Mikulas

BTW. note that that internal documentation may be wrong. There's a 
whitepaper about PA8700 on HP site that describes the dcache as 
375kBx4ways and icache as 188kBx4ways. It is hard to implement this way 
(the CPU'd have to do some mathematics to calculate the cache index), I 
much more believe that the cache is really 3-way or 6-way (where the CPU 
could just take some bits of the address as the index).

That 64MB cache may be 16-way with 4MB modulus, but it looks less 
plausible than a 4-way cache with 16MB modulus.

Anyway, if you think that the modulus is 4MB, try it --- take PA8900 with 
64MB cache, map shared memory to two processes to addresses congruent with 
4MB (but not 8MB), let one process write to odd bytes and the other to 
even bytes and let the processes check that they read the bytes that they 
wrote. If the caches don't synchronize, you'll get a corruption after some 
time of running this.

Mikulas
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From - Thu Nov 08 21:06:25 2018
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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: sym53c8xx_2 data corruption
Date: Wed, 27 Oct 2010 11:04:40 +0200 (CEST)
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi

I sent this about twice to linux-scsi and got no reseponse, neither from 
conference nor from Matthew. So I'm sending it here, James, you are the 
maintainer of SCSI, could you please look at the patch and incorporate it 
to the kernel in this cycle?

The problem is that if the disk returns QUEUE FULL, the requests are 
aborted with DID_SOFT_ERROR (rather than DID_REQUEUE), which results in 
too few retries and premature errors. The errors happen mostly on writes, 
resulting in data corruption.

Mikulas

---

sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue.

When the controller encounters an error (including QUEUE FULL or BUSY status),
it aborts all not yet submitted requests in the function
sym_dequeue_from_squeue.

This function aborts them with DID_SOFT_ERROR.

If the disk has a full tag queue, the request that caused the overflow is
aborted with QUEUE FULL status (and the scsi midlayer properly retries it
until it is accepted by the disk), but other requests are aborted with
DID_SOFT_ERROR --- for them, the midlayer does just a few retries and then
signals the error up to sd.

The result is that disk returning QUEUE FULL causes request failures.

The error was reproduced on 53c895 with COMPAQ BD03685A24 disk (rebranded
ST336607LC) with command queue 48 or 64 tags. The disk has 64 tags, but
under some access patterns it return QUEUE FULL when there are less than
64 pending tags. The SCSI specification allows returning QUEUE FULL
anytime and it is up to the host to retry.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
 drivers/scsi/sym53c8xx_2/sym_hipd.c |    4 ++++
 1 file changed, 4 insertions(+)

Index: linux-2.6.36-rc5-fast/drivers/scsi/sym53c8xx_2/sym_hipd.c
===================================================================
--- linux-2.6.36-rc5-fast.orig/drivers/scsi/sym53c8xx_2/sym_hipd.c	2010-09-27 10:25:59.000000000 +0200
+++ linux-2.6.36-rc5-fast/drivers/scsi/sym53c8xx_2/sym_hipd.c	2010-09-27 10:26:27.000000000 +0200
@@ -3000,7 +3000,11 @@ sym_dequeue_from_squeue(struct sym_hcb *
 		if ((target == -1 || cp->target == target) &&
 		    (lun    == -1 || cp->lun    == lun)    &&
 		    (task   == -1 || cp->tag    == task)) {
+#ifdef SYM_OPT_HANDLE_DEVICE_QUEUEING
 			sym_set_cam_status(cp->cmd, DID_SOFT_ERROR);
+#else
+			sym_set_cam_status(cp->cmd, DID_REQUEUE);
+#endif
 			sym_remque(&cp->link_ccbq);
 			sym_insque_tail(&cp->link_ccbq, &np->comp_ccbq);
 		}

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: PA caches (was: C8000 cpu upgrade problem)
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On Wed, 2010-10-27 at 10:06 +0200, Mikulas Patocka wrote:
> 
> On Tue, 26 Oct 2010, James Bottomley wrote:
> 
> > On Tue, 2010-10-26 at 21:29 -0400, John David Anglin wrote:
> > > > - shared memory --- there is SHMLBA boundary that causes that all
> > > mappings 
> > > > are aligned to this boundary --- it is **WRONG** in the current
> > > kernel!!! 
> > > > It is only 4MB and should be 16MB!!!
> > > 
> > > James has said that the max for all PA-RISC implementations is
> > > 4 MB.  The value is returned by the PDC_CACHE call.  Maybe a BUG_ON is
> > > called for.  The alias boundary can be determined by the alias field
> > > in the D_conf return value.
> > 
> > Why is it I get blamed for everything cache related on parisc?  The
> 
> You don't get blamed, we're just trying to find bugs :)
> 
> > statement in the manuals that the equivalency modulus is 16MB was left
> > for future expansion.  However, given PA8900 is the last in the series,
> > there is no future expansion.  John Marvin (I think it was) from the HP
> > processor group confirmed that the largest equivalency modulus for any
> > produced parisc processor is 4MB, so that's what we use in the kernel.
> > 
> > James
> 
> The largest L2 cache size is 64MB --- so if the cache is 4-way 
> associative, the equivalency distance is 16MB (as the manual says).
> 
> If the equivalency distance were 4MB, the L2 cache would have to be 16-way 
> (or the cache would have to be physically indexed and you wouldn't have to 
> care about its consistency at all).

The L2 cache has no equivalency modulus ... it's not virtually indexed.

James


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On Wed, 2010-10-27 at 10:35 +0200, Mikulas Patocka wrote:
> 
> On Wed, 27 Oct 2010, Mikulas Patocka wrote:
> 
> > 
> > 
> > On Tue, 26 Oct 2010, James Bottomley wrote:
> > 
> > > On Tue, 2010-10-26 at 21:29 -0400, John David Anglin wrote:
> > > > > - shared memory --- there is SHMLBA boundary that causes that all
> > > > mappings 
> > > > > are aligned to this boundary --- it is **WRONG** in the current
> > > > kernel!!! 
> > > > > It is only 4MB and should be 16MB!!!
> > > > 
> > > > James has said that the max for all PA-RISC implementations is
> > > > 4 MB.  The value is returned by the PDC_CACHE call.  Maybe a BUG_ON is
> > > > called for.  The alias boundary can be determined by the alias field
> > > > in the D_conf return value.
> > > 
> > > Why is it I get blamed for everything cache related on parisc?  The
> > 
> > You don't get blamed, we're just trying to find bugs :)
> > 
> > > statement in the manuals that the equivalency modulus is 16MB was left
> > > for future expansion.  However, given PA8900 is the last in the series,
> > > there is no future expansion.  John Marvin (I think it was) from the HP
> > > processor group confirmed that the largest equivalency modulus for any
> > > produced parisc processor is 4MB, so that's what we use in the kernel.
> > > 
> > > James
> > 
> > The largest L2 cache size is 64MB --- so if the cache is 4-way 
> > associative, the equivalency distance is 16MB (as the manual says).
> > 
> > If the equivalency distance were 4MB, the L2 cache would have to be 16-way 
> > (or the cache would have to be physically indexed and you wouldn't have to 
> > care about its consistency at all).
> > 
> > Mikulas
> 
> BTW. note that that internal documentation may be wrong. There's a 
> whitepaper about PA8700 on HP site that describes the dcache as 
> 375kBx4ways and icache as 188kBx4ways. It is hard to implement this way 
> (the CPU'd have to do some mathematics to calculate the cache index), I 
> much more believe that the cache is really 3-way or 6-way (where the CPU 
> could just take some bits of the address as the index).

I don't really buy that, but it depends on internals of the chip we
don't know about.  You seem to be assuming some type of CAS arrangement
but low associativity caches frequently use hidden index bits to cycle
through for the content, so their associativity is most often power of
two.

James

> That 64MB cache may be 16-way with 4MB modulus, but it looks less 
> plausible than a 4-way cache with 16MB modulus.
> 
> Anyway, if you think that the modulus is 4MB, try it --- take PA8900 with 
> 64MB cache, map shared memory to two processes to addresses congruent with 
> 4MB (but not 8MB), let one process write to odd bytes and the other to 
> even bytes and let the processes check that they read the bytes that they 
> wrote. If the caches don't synchronize, you'll get a corruption after some 
> time of running this.
> 
> Mikulas


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Subject: Re: sym53c8xx_2 data corruption
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On Wed, 2010-10-27 at 11:04 +0200, Mikulas Patocka wrote:
> Hi
> 
> I sent this about twice to linux-scsi and got no reseponse, neither from 
> conference nor from Matthew. So I'm sending it here, James, you are the 
> maintainer of SCSI, could you please look at the patch and incorporate it 
> to the kernel in this cycle?
> 
> The problem is that if the disk returns QUEUE FULL, the requests are 
> aborted with DID_SOFT_ERROR (rather than DID_REQUEUE), which results in 
> too few retries and premature errors. The errors happen mostly on writes, 
> resulting in data corruption.
> 
> Mikulas
> 
> ---
> 
> sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue.
> 
> When the controller encounters an error (including QUEUE FULL or BUSY status),
> it aborts all not yet submitted requests in the function
> sym_dequeue_from_squeue.
> 
> This function aborts them with DID_SOFT_ERROR.
> 
> If the disk has a full tag queue, the request that caused the overflow is
> aborted with QUEUE FULL status (and the scsi midlayer properly retries it
> until it is accepted by the disk), but other requests are aborted with
> DID_SOFT_ERROR --- for them, the midlayer does just a few retries and then
> signals the error up to sd.
> 
> The result is that disk returning QUEUE FULL causes request failures.
> 
> The error was reproduced on 53c895 with COMPAQ BD03685A24 disk (rebranded
> ST336607LC) with command queue 48 or 64 tags. The disk has 64 tags, but
> under some access patterns it return QUEUE FULL when there are less than
> 64 pending tags. The SCSI specification allows returning QUEUE FULL
> anytime and it is up to the host to retry.

So the description isn't really complete.  the function is
dequeue_from_squeue which is used to requeue all unissued scbs when the
sequencer is restarted.  This doesn't just affect QUEUE_FULL, it affects
everything.  As long as the pushback is done before the status is
returned (which it looks like it is), I think the patch after fixing
looks fine.

The problem isn't the actual command which returns queue full ... it's
that the sequencer accepts and queues a pile of commands and then
returns all of them on the first queue full ... that means that deeply
queued commands in the sequencer issue queue can get returned >5 times
on multiple QUEUE_FULL conditions which would cause a failure.

> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
> 
> ---
>  drivers/scsi/sym53c8xx_2/sym_hipd.c |    4 ++++
>  1 file changed, 4 insertions(+)
> 
> Index: linux-2.6.36-rc5-fast/drivers/scsi/sym53c8xx_2/sym_hipd.c
> ===================================================================
> --- linux-2.6.36-rc5-fast.orig/drivers/scsi/sym53c8xx_2/sym_hipd.c	2010-09-27 10:25:59.000000000 +0200
> +++ linux-2.6.36-rc5-fast/drivers/scsi/sym53c8xx_2/sym_hipd.c	2010-09-27 10:26:27.000000000 +0200
> @@ -3000,7 +3000,11 @@ sym_dequeue_from_squeue(struct sym_hcb *
>  		if ((target == -1 || cp->target == target) &&
>  		    (lun    == -1 || cp->lun    == lun)    &&
>  		    (task   == -1 || cp->tag    == task)) {
> +#ifdef SYM_OPT_HANDLE_DEVICE_QUEUEING
>  			sym_set_cam_status(cp->cmd, DID_SOFT_ERROR);
> +#else
> +			sym_set_cam_status(cp->cmd, DID_REQUEUE);
> +#endif

So the ifdef is definitely wrong.  SYM_OPT_HANDLE_DEVICE_QUEUEING is a
leftover from when the driver did explicit internal queueing. Just make
this do DID_REQUEUE and I *think* everything will be OK.

There's a danger in that DID_REQUEUE will requeue forever, so this
working depends on the original failing command being returned with the
correct code (which I think it is, but more eyes looking at this would
be helpful).

James


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On Wed, 27 Oct 2010, James Bottomley wrote:

> On Wed, 2010-10-27 at 11:04 +0200, Mikulas Patocka wrote:
> > Hi
> > 
> > I sent this about twice to linux-scsi and got no reseponse, neither from 
> > conference nor from Matthew. So I'm sending it here, James, you are the 
> > maintainer of SCSI, could you please look at the patch and incorporate it 
> > to the kernel in this cycle?
> > 
> > The problem is that if the disk returns QUEUE FULL, the requests are 
> > aborted with DID_SOFT_ERROR (rather than DID_REQUEUE), which results in 
> > too few retries and premature errors. The errors happen mostly on writes, 
> > resulting in data corruption.
> > 
> > Mikulas
> > 
> > ---
> > 
> > sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue.
> > 
> > When the controller encounters an error (including QUEUE FULL or BUSY status),
> > it aborts all not yet submitted requests in the function
> > sym_dequeue_from_squeue.
> > 
> > This function aborts them with DID_SOFT_ERROR.
> > 
> > If the disk has a full tag queue, the request that caused the overflow is
> > aborted with QUEUE FULL status (and the scsi midlayer properly retries it
> > until it is accepted by the disk), but other requests are aborted with
> > DID_SOFT_ERROR --- for them, the midlayer does just a few retries and then
> > signals the error up to sd.
> > 
> > The result is that disk returning QUEUE FULL causes request failures.
> > 
> > The error was reproduced on 53c895 with COMPAQ BD03685A24 disk (rebranded
> > ST336607LC) with command queue 48 or 64 tags. The disk has 64 tags, but
> > under some access patterns it return QUEUE FULL when there are less than
> > 64 pending tags. The SCSI specification allows returning QUEUE FULL
> > anytime and it is up to the host to retry.
> 
> So the description isn't really complete.  the function is
> dequeue_from_squeue which is used to requeue all unissued scbs when the
> sequencer is restarted.  This doesn't just affect QUEUE_FULL, it affects
> everything.  As long as the pushback is done before the status is
> returned (which it looks like it is), I think the patch after fixing
> looks fine.
>
> The problem isn't the actual command which returns queue full ... it's
> that the sequencer accepts and queues a pile of commands and then
> returns all of them on the first queue full ... that means that deeply
> queued commands in the sequencer issue queue can get returned >5 times
> on multiple QUEUE_FULL conditions which would cause a failure.

Sure, that's how I understood it from the code and debug prints. You can 
add this to the description.

That QUEUE_FULL command is actually retired fine, the following commands 
are problematic.

> > Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
> > 
> > ---
> >  drivers/scsi/sym53c8xx_2/sym_hipd.c |    4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > Index: linux-2.6.36-rc5-fast/drivers/scsi/sym53c8xx_2/sym_hipd.c
> > ===================================================================
> > --- linux-2.6.36-rc5-fast.orig/drivers/scsi/sym53c8xx_2/sym_hipd.c	2010-09-27 10:25:59.000000000 +0200
> > +++ linux-2.6.36-rc5-fast/drivers/scsi/sym53c8xx_2/sym_hipd.c	2010-09-27 10:26:27.000000000 +0200
> > @@ -3000,7 +3000,11 @@ sym_dequeue_from_squeue(struct sym_hcb *
> >  		if ((target == -1 || cp->target == target) &&
> >  		    (lun    == -1 || cp->lun    == lun)    &&
> >  		    (task   == -1 || cp->tag    == task)) {
> > +#ifdef SYM_OPT_HANDLE_DEVICE_QUEUEING
> >  			sym_set_cam_status(cp->cmd, DID_SOFT_ERROR);
> > +#else
> > +			sym_set_cam_status(cp->cmd, DID_REQUEUE);
> > +#endif
> 
> So the ifdef is definitely wrong.  SYM_OPT_HANDLE_DEVICE_QUEUEING is a
> leftover from when the driver did explicit internal queueing. Just make
> this do DID_REQUEUE and I *think* everything will be OK.

When I tried to enable SYM_OPT_HANDLE_DEVICE_QUEUEING, it didn't work, it 
crashed on something --- it is leftover from some other operating system 
that didn't handle requeuing in the midlayer.

When looking at the other parts of code that handles this driver-internal 
requeueing, it expects DID_SOFT_ERROR there. But it doesn't matter, that 
code is useless for Linux and broken anyway.

> There's a danger in that DID_REQUEUE will requeue forever, so this
> working depends on the original failing command being returned with the
> correct code (which I think it is, but more eyes looking at this would
> be helpful).

Requeuing forever is dangerous anyway, a device returning QUEUE_FULL 
constantly could deadlock the system. Question: is it better to risk a 
deadlock with a broken device or to risk a false timeout under high load? 
--- I don't know --- maybe there are valid cases where the device is 
returning QUEUE_FULL for long time (some raid reconfiguration?) ... do you 
know about them?

Anyway, if sym_dequeue_from_squeue was called from some other error that 
causes limited retry or command abort, I think it is still valid to use 
DID_REQUEUE for the following commands --- it can't deadlock with 
DID_REQUEUE, because on that error, the first command is aborted or has 
its retry count decremented --- so the first command must be eventually 
completed, and the second command (which was being retried with 
DID_REQUEUE) becomes the first --- and once it's first, it cannot loop 
forever. So with induction you can prove that every command completes in 
finite time.

Mikulas

> James
> 
> 
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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
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Subject: Re: PA caches (was: C8000 cpu upgrade problem)
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On Wed, 27 Oct 2010, James Bottomley wrote:

> On Wed, 2010-10-27 at 10:06 +0200, Mikulas Patocka wrote:
> > 
> > On Tue, 26 Oct 2010, James Bottomley wrote:
> > 
> > > On Tue, 2010-10-26 at 21:29 -0400, John David Anglin wrote:
> > > > > - shared memory --- there is SHMLBA boundary that causes that all
> > > > mappings 
> > > > > are aligned to this boundary --- it is **WRONG** in the current
> > > > kernel!!! 
> > > > > It is only 4MB and should be 16MB!!!
> > > > 
> > > > James has said that the max for all PA-RISC implementations is
> > > > 4 MB.  The value is returned by the PDC_CACHE call.  Maybe a BUG_ON is
> > > > called for.  The alias boundary can be determined by the alias field
> > > > in the D_conf return value.
> > > 
> > > Why is it I get blamed for everything cache related on parisc?  The
> > 
> > You don't get blamed, we're just trying to find bugs :)
> > 
> > > statement in the manuals that the equivalency modulus is 16MB was left
> > > for future expansion.  However, given PA8900 is the last in the series,
> > > there is no future expansion.  John Marvin (I think it was) from the HP
> > > processor group confirmed that the largest equivalency modulus for any
> > > produced parisc processor is 4MB, so that's what we use in the kernel.
> > > 
> > > James
> > 
> > The largest L2 cache size is 64MB --- so if the cache is 4-way 
> > associative, the equivalency distance is 16MB (as the manual says).
> > 
> > If the equivalency distance were 4MB, the L2 cache would have to be 16-way 
> > (or the cache would have to be physically indexed and you wouldn't have to 
> > care about its consistency at all).
> 
> The L2 cache has no equivalency modulus ... it's not virtually indexed.
> 
> James

Why is Kyle than suggesting that I am lucky because I have no L2 cache 
(and therefore, Linux runs faster)?

Why are people talking here about flushing 32MB or 64MB L2 on fork()?

Or is it that you need to flush only L1 cache but the architecture forces 
flush of both caches?


I'd still like to see if someone with PA8800 or PA8900 with L2 ran that 
shared memory experiment to actually *prove* that L2 is physically indexed 
and that the L1 equivalency modulus is 4MB. I.e. not rely on what you 
heard somewhere, but rely on what you see.

Mikulas
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On Wed, 2010-10-27 at 18:28 +0200, Mikulas Patocka wrote:
> 
> On Wed, 27 Oct 2010, James Bottomley wrote:
> 
> > On Wed, 2010-10-27 at 10:06 +0200, Mikulas Patocka wrote:
> > > 
> > > On Tue, 26 Oct 2010, James Bottomley wrote:
> > > 
> > > > On Tue, 2010-10-26 at 21:29 -0400, John David Anglin wrote:
> > > > > > - shared memory --- there is SHMLBA boundary that causes that all
> > > > > mappings 
> > > > > > are aligned to this boundary --- it is **WRONG** in the current
> > > > > kernel!!! 
> > > > > > It is only 4MB and should be 16MB!!!
> > > > > 
> > > > > James has said that the max for all PA-RISC implementations is
> > > > > 4 MB.  The value is returned by the PDC_CACHE call.  Maybe a BUG_ON is
> > > > > called for.  The alias boundary can be determined by the alias field
> > > > > in the D_conf return value.
> > > > 
> > > > Why is it I get blamed for everything cache related on parisc?  The
> > > 
> > > You don't get blamed, we're just trying to find bugs :)
> > > 
> > > > statement in the manuals that the equivalency modulus is 16MB was left
> > > > for future expansion.  However, given PA8900 is the last in the series,
> > > > there is no future expansion.  John Marvin (I think it was) from the HP
> > > > processor group confirmed that the largest equivalency modulus for any
> > > > produced parisc processor is 4MB, so that's what we use in the kernel.
> > > > 
> > > > James
> > > 
> > > The largest L2 cache size is 64MB --- so if the cache is 4-way 
> > > associative, the equivalency distance is 16MB (as the manual says).
> > > 
> > > If the equivalency distance were 4MB, the L2 cache would have to be 16-way 
> > > (or the cache would have to be physically indexed and you wouldn't have to 
> > > care about its consistency at all).
> > 
> > The L2 cache has no equivalency modulus ... it's not virtually indexed.
> > 
> > James
> 
> Why is Kyle than suggesting that I am lucky because I have no L2 cache 
> (and therefore, Linux runs faster)?
> 
> Why are people talking here about flushing 32MB or 64MB L2 on fork()?
> 
> Or is it that you need to flush only L1 cache but the architecture forces 
> flush of both caches?

There's only a couple of flush instructions: fic and fdc ... they have
to flush all caches.  We did argue the toss on this with the HP
processor people since aliasing, which is primarily where we need
flushes for control, only occurs in the L1 cache.  However, they pointed
out that if they made fic and fdc L1 specific, we'd have no control over
DMA type ops which have to reach physical memory.

> I'd still like to see if someone with PA8800 or PA8900 with L2 ran that 
> shared memory experiment to actually *prove* that L2 is physically indexed 
> and that the L1 equivalency modulus is 4MB. I.e. not rely on what you 
> heard somewhere, but rely on what you see.

We already did all of that years ago just trying to make the pa8x00
chips work with linux ... they didn't for about 18 months.

James


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To: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
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On Wed, 2010-10-27 at 18:19 +0200, Mikulas Patocka wrote:
> 
> On Wed, 27 Oct 2010, James Bottomley wrote:
> 
> > On Wed, 2010-10-27 at 11:04 +0200, Mikulas Patocka wrote:
> > > Hi
> > > 
> > > I sent this about twice to linux-scsi and got no reseponse, neither from 
> > > conference nor from Matthew. So I'm sending it here, James, you are the 
> > > maintainer of SCSI, could you please look at the patch and incorporate it 
> > > to the kernel in this cycle?
> > > 
> > > The problem is that if the disk returns QUEUE FULL, the requests are 
> > > aborted with DID_SOFT_ERROR (rather than DID_REQUEUE), which results in 
> > > too few retries and premature errors. The errors happen mostly on writes, 
> > > resulting in data corruption.
> > > 
> > > Mikulas
> > > 
> > > ---
> > > 
> > > sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue.
> > > 
> > > When the controller encounters an error (including QUEUE FULL or BUSY status),
> > > it aborts all not yet submitted requests in the function
> > > sym_dequeue_from_squeue.
> > > 
> > > This function aborts them with DID_SOFT_ERROR.
> > > 
> > > If the disk has a full tag queue, the request that caused the overflow is
> > > aborted with QUEUE FULL status (and the scsi midlayer properly retries it
> > > until it is accepted by the disk), but other requests are aborted with
> > > DID_SOFT_ERROR --- for them, the midlayer does just a few retries and then
> > > signals the error up to sd.
> > > 
> > > The result is that disk returning QUEUE FULL causes request failures.
> > > 
> > > The error was reproduced on 53c895 with COMPAQ BD03685A24 disk (rebranded
> > > ST336607LC) with command queue 48 or 64 tags. The disk has 64 tags, but
> > > under some access patterns it return QUEUE FULL when there are less than
> > > 64 pending tags. The SCSI specification allows returning QUEUE FULL
> > > anytime and it is up to the host to retry.
> > 
> > So the description isn't really complete.  the function is
> > dequeue_from_squeue which is used to requeue all unissued scbs when the
> > sequencer is restarted.  This doesn't just affect QUEUE_FULL, it affects
> > everything.  As long as the pushback is done before the status is
> > returned (which it looks like it is), I think the patch after fixing
> > looks fine.
> >
> > The problem isn't the actual command which returns queue full ... it's
> > that the sequencer accepts and queues a pile of commands and then
> > returns all of them on the first queue full ... that means that deeply
> > queued commands in the sequencer issue queue can get returned >5 times
> > on multiple QUEUE_FULL conditions which would cause a failure.
> 
> Sure, that's how I understood it from the code and debug prints. You can 
> add this to the description.
> 
> That QUEUE_FULL command is actually retired fine, the following commands 
> are problematic.
> 
> > > Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
> > > 
> > > ---
> > >  drivers/scsi/sym53c8xx_2/sym_hipd.c |    4 ++++
> > >  1 file changed, 4 insertions(+)
> > > 
> > > Index: linux-2.6.36-rc5-fast/drivers/scsi/sym53c8xx_2/sym_hipd.c
> > > ===================================================================
> > > --- linux-2.6.36-rc5-fast.orig/drivers/scsi/sym53c8xx_2/sym_hipd.c	2010-09-27 10:25:59.000000000 +0200
> > > +++ linux-2.6.36-rc5-fast/drivers/scsi/sym53c8xx_2/sym_hipd.c	2010-09-27 10:26:27.000000000 +0200
> > > @@ -3000,7 +3000,11 @@ sym_dequeue_from_squeue(struct sym_hcb *
> > >  		if ((target == -1 || cp->target == target) &&
> > >  		    (lun    == -1 || cp->lun    == lun)    &&
> > >  		    (task   == -1 || cp->tag    == task)) {
> > > +#ifdef SYM_OPT_HANDLE_DEVICE_QUEUEING
> > >  			sym_set_cam_status(cp->cmd, DID_SOFT_ERROR);
> > > +#else
> > > +			sym_set_cam_status(cp->cmd, DID_REQUEUE);
> > > +#endif
> > 
> > So the ifdef is definitely wrong.  SYM_OPT_HANDLE_DEVICE_QUEUEING is a
> > leftover from when the driver did explicit internal queueing. Just make
> > this do DID_REQUEUE and I *think* everything will be OK.
> 
> When I tried to enable SYM_OPT_HANDLE_DEVICE_QUEUEING, it didn't work, it 
> crashed on something --- it is leftover from some other operating system 
> that didn't handle requeuing in the midlayer.
> 
> When looking at the other parts of code that handles this driver-internal 
> requeueing, it expects DID_SOFT_ERROR there. But it doesn't matter, that 
> code is useless for Linux and broken anyway.
> 
> > There's a danger in that DID_REQUEUE will requeue forever, so this
> > working depends on the original failing command being returned with the
> > correct code (which I think it is, but more eyes looking at this would
> > be helpful).
> 
> Requeuing forever is dangerous anyway, a device returning QUEUE_FULL 
> constantly could deadlock the system. Question: is it better to risk a 
> deadlock with a broken device or to risk a false timeout under high load? 
> --- I don't know --- maybe there are valid cases where the device is 
> returning QUEUE_FULL for long time (some raid reconfiguration?) ... do you 
> know about them?
> 
> Anyway, if sym_dequeue_from_squeue was called from some other error that 
> causes limited retry or command abort, I think it is still valid to use 
> DID_REQUEUE for the following commands --- it can't deadlock with 
> DID_REQUEUE, because on that error, the first command is aborted or has 
> its retry count decremented --- so the first command must be eventually 
> completed, and the second command (which was being retried with 
> DID_REQUEUE) becomes the first --- and once it's first, it cannot loop 
> forever. So with induction you can prove that every command completes in 
> finite time.

As long as we see the QUEUE_FULL return, there's no danger.  The mid
layer has a timeout beyond which it won't allow a QUEUE_FULL return to
be retried.

James


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From - Thu Nov 08 21:06:26 2018
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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: PA caches (was: C8000 cpu upgrade problem)
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> > Why is Kyle than suggesting that I am lucky because I have no L2 cache 
> > (and therefore, Linux runs faster)?
> > 
> > Why are people talking here about flushing 32MB or 64MB L2 on fork()?
> > 
> > Or is it that you need to flush only L1 cache but the architecture forces 
> > flush of both caches?
> 
> There's only a couple of flush instructions: fic and fdc ... they have
> to flush all caches.  We did argue the toss on this with the HP
> processor people since aliasing, which is primarily where we need
> flushes for control, only occurs in the L1 cache.  However, they pointed
> out that if they made fic and fdc L1 specific, we'd have no control over
> DMA type ops which have to reach physical memory.
> 
> > I'd still like to see if someone with PA8800 or PA8900 with L2 ran that 
> > shared memory experiment to actually *prove* that L2 is physically indexed 
> > and that the L1 equivalency modulus is 4MB. I.e. not rely on what you 
> > heard somewhere, but rely on what you see.
> 
> We already did all of that years ago just trying to make the pa8x00

If it is really proved, OK.

So, the CPU takes a hash of bits some bits up to 4MB and uses them to 
calculate an index into 4-way not-power-of-two-sized L1 cache?

> chips work with linux ... they didn't for about 18 months.
> 
> James

Unfortunatelly, I still get some userspace crashes on SMP, I already found 
one reproducible crash (running "make install" on gcc-4.5.1). The crash 
happens with some probability, but the probability is high enough so that 
it's reproducible.

Do you have some idea where cache flushing is missing so that I could try 
if it fixes my case?

BTW. if you flush cache on kmap, I think it couldn't work in multithreaded 
environment at all --- i.e. the program has "int a, b;" both variables 
share the cacheline, one thread is accessing "a" via kmap and the other 
thread writes to b directly, for example "b = 5". Then, cache flushing 
won't help and one of the variables will be trashed. You need kmap address 
to be congruent with the linear address. But I think it's not reason for 
my crash because neither gmake nor bash (that crashes) is multithreaded.

Mikulas
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On Wed, 2010-10-27 at 18:50 +0200, Mikulas Patocka wrote:
> > > Why is Kyle than suggesting that I am lucky because I have no L2 cache 
> > > (and therefore, Linux runs faster)?
> > > 
> > > Why are people talking here about flushing 32MB or 64MB L2 on fork()?
> > > 
> > > Or is it that you need to flush only L1 cache but the architecture forces 
> > > flush of both caches?
> > 
> > There's only a couple of flush instructions: fic and fdc ... they have
> > to flush all caches.  We did argue the toss on this with the HP
> > processor people since aliasing, which is primarily where we need
> > flushes for control, only occurs in the L1 cache.  However, they pointed
> > out that if they made fic and fdc L1 specific, we'd have no control over
> > DMA type ops which have to reach physical memory.
> > 
> > > I'd still like to see if someone with PA8800 or PA8900 with L2 ran that 
> > > shared memory experiment to actually *prove* that L2 is physically indexed 
> > > and that the L1 equivalency modulus is 4MB. I.e. not rely on what you 
> > > heard somewhere, but rely on what you see.
> > 
> > We already did all of that years ago just trying to make the pa8x00
> 
> If it is really proved, OK.
> 
> So, the CPU takes a hash of bits some bits up to 4MB and uses them to 
> calculate an index into 4-way not-power-of-two-sized L1 cache?
> 
> > chips work with linux ... they didn't for about 18 months.
> > 
> > James
> 
> Unfortunatelly, I still get some userspace crashes on SMP, I already found 
> one reproducible crash (running "make install" on gcc-4.5.1). The crash 
> happens with some probability, but the probability is high enough so that 
> it's reproducible.
> 
> Do you have some idea where cache flushing is missing so that I could try 
> if it fixes my case?

This is what we know

http://wiki.parisc-linux.org/TestCases

> BTW. if you flush cache on kmap, I think it couldn't work in multithreaded 
> environment at all --- i.e. the program has "int a, b;" both variables 
> share the cacheline, one thread is accessing "a" via kmap and the other 
> thread writes to b directly, for example "b = 5". Then, cache flushing 
> won't help and one of the variables will be trashed. You need kmap address 
> to be congruent with the linear address. But I think it's not reason for 
> my crash because neither gmake nor bash (that crashes) is multithreaded.

That statement assumes the threads share a data structure but are not
congruent ... which certainly isn't true for userspace.  Our only
incongruency which gives rise to aliasing is between the kernel and user
address spaces and we don't do data sharing between the two without
pretty severe accessor restrictions.

James


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This commit:

commit 3e4d3af501cccdc8a8cca41bdbe57d54ad7e7e73
Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date:   Tue Oct 26 14:21:51 2010 -0700

    mm: stack based kmap_atomic()

overlooked the fact that parisc uses kmap as a coherence mechanism, so
even though we have no highmem, we do need to supply our own versions of
kmap (and atomic).  This patch converts the parisc kmap to the form
which is needed to keep it compiling (it's a simple prototype and name
change).

Signed-off-by: James Bottomley <James.Bottomley@suse.de>

---

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index dba11ae..f388a85 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -126,20 +126,20 @@ static inline void *kmap(struct page *page)
 
 #define kunmap(page)			kunmap_parisc(page_address(page))
 
-static inline void *kmap_atomic(struct page *page, enum km_type idx)
+static inline void *__kmap_atomic(struct page *page)
 {
 	pagefault_disable();
 	return page_address(page);
 }
 
-static inline void kunmap_atomic_notypecheck(void *addr, enum km_type idx)
+static inline void __kunmap_atomic(void *addr)
 {
 	kunmap_parisc(addr);
 	pagefault_enable();
 }
 
-#define kmap_atomic_prot(page, idx, prot)	kmap_atomic(page, idx)
-#define kmap_atomic_pfn(pfn, idx)	kmap_atomic(pfn_to_page(pfn), (idx))
+#define kmap_atomic_prot(page, prot)	kmap_atomic(page)
+#define kmap_atomic_pfn(pfn)	kmap_atomic(pfn_to_page(pfn))
 #define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
 #endif
 


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From - Thu Nov 08 21:06:26 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH] parisc: fix compile failure with kmap_atomic changes
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Signed-off-by: John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

Sent effectively the same change to parisc-linux list months ago...

> This commit:
> 
> commit 3e4d3af501cccdc8a8cca41bdbe57d54ad7e7e73
> Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Date:   Tue Oct 26 14:21:51 2010 -0700
> 
>     mm: stack based kmap_atomic()
> 
> overlooked the fact that parisc uses kmap as a coherence mechanism, so
> even though we have no highmem, we do need to supply our own versions of
> kmap (and atomic).  This patch converts the parisc kmap to the form
> which is needed to keep it compiling (it's a simple prototype and name
> change).
> 
> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> 
> ---
> 
> diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
> index dba11ae..f388a85 100644
> --- a/arch/parisc/include/asm/cacheflush.h
> +++ b/arch/parisc/include/asm/cacheflush.h
> @@ -126,20 +126,20 @@ static inline void *kmap(struct page *page)
>  
>  #define kunmap(page)			kunmap_parisc(page_address(page))
>  
> -static inline void *kmap_atomic(struct page *page, enum km_type idx)
> +static inline void *__kmap_atomic(struct page *page)
>  {
>  	pagefault_disable();
>  	return page_address(page);
>  }
>  
> -static inline void kunmap_atomic_notypecheck(void *addr, enum km_type idx)
> +static inline void __kunmap_atomic(void *addr)
>  {
>  	kunmap_parisc(addr);
>  	pagefault_enable();
>  }
>  
> -#define kmap_atomic_prot(page, idx, prot)	kmap_atomic(page, idx)
> -#define kmap_atomic_pfn(pfn, idx)	kmap_atomic(pfn_to_page(pfn), (idx))
> +#define kmap_atomic_prot(page, prot)	kmap_atomic(page)
> +#define kmap_atomic_pfn(pfn)	kmap_atomic(pfn_to_page(pfn))
>  #define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
>  #endif
>  
> 
> 
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-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:26 2018
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Subject: Re: PA caches (was: C8000 cpu upgrade problem)
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Cc: mikulas@artax.karlin.mff.cuni.cz, kyle@mcmartin.ca,
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To: James.Bottomley@HansenPartnership.com (James Bottomley)
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> On Wed, 2010-10-27 at 18:50 +0200, Mikulas Patocka wrote:
> > > > Why is Kyle than suggesting that I am lucky because I have no L2 cache 
> > > > (and therefore, Linux runs faster)?
> > > > 
> > > > Why are people talking here about flushing 32MB or 64MB L2 on fork()?
> > > > 
> > > > Or is it that you need to flush only L1 cache but the architecture forces 
> > > > flush of both caches?
> > > 
> > > There's only a couple of flush instructions: fic and fdc ... they have
> > > to flush all caches.  We did argue the toss on this with the HP
> > > processor people since aliasing, which is primarily where we need
> > > flushes for control, only occurs in the L1 cache.  However, they pointed
> > > out that if they made fic and fdc L1 specific, we'd have no control over
> > > DMA type ops which have to reach physical memory.
> > > 
> > > > I'd still like to see if someone with PA8800 or PA8900 with L2 ran that 
> > > > shared memory experiment to actually *prove* that L2 is physically indexed 
> > > > and that the L1 equivalency modulus is 4MB. I.e. not rely on what you 
> > > > heard somewhere, but rely on what you see.
> > > 
> > > We already did all of that years ago just trying to make the pa8x00
> > 
> > If it is really proved, OK.
> > 
> > So, the CPU takes a hash of bits some bits up to 4MB and uses them to 
> > calculate an index into 4-way not-power-of-two-sized L1 cache?
> > 
> > > chips work with linux ... they didn't for about 18 months.
> > > 
> > > James
> > 
> > Unfortunatelly, I still get some userspace crashes on SMP, I already found 
> > one reproducible crash (running "make install" on gcc-4.5.1). The crash 
> > happens with some probability, but the probability is high enough so that 
> > it's reproducible.
> > 
> > Do you have some idea where cache flushing is missing so that I could try 
> > if it fixes my case?

I also see random userspace segmentation faults on SMP.  This is not
restricted to PA8800/PA8900 processors, although it is less frequent
on earlier processors.  The probability of completing a full GCC build
on a SMP system is relatively low.

Some kernels (e.g., 2.6.19) have been better than others but the reason
is unknown.

> This is what we know
> 
> http://wiki.parisc-linux.org/TestCases

The wiki certainly has a number of testcases that fail with high probability.
The testcases all involve multiple threads and near simultaneous execution
of a clone and a fork.  The parent forks after the clone.  The segvs always
occur in the thread created by the clone syscall.  The stack created for
the thread is corrupted by the fork.  It is allocated by a mmap call.
If the fork is delayed, the segvs don't occur.

However, I'm totally convinced there are more problems than the one above.
They are just harder to reproduce.  In general, GCC builds don't involve
multithreaded applications.

> > BTW. if you flush cache on kmap, I think it couldn't work in multithreaded 
> > environment at all --- i.e. the program has "int a, b;" both variables 
> > share the cacheline, one thread is accessing "a" via kmap and the other 
> > thread writes to b directly, for example "b = 5". Then, cache flushing 
> > won't help and one of the variables will be trashed. You need kmap address 
> > to be congruent with the linear address. But I think it's not reason for 
> > my crash because neither gmake nor bash (that crashes) is multithreaded.

Agree.

> That statement assumes the threads share a data structure but are not
> congruent ... which certainly isn't true for userspace.  Our only
> incongruency which gives rise to aliasing is between the kernel and user
> address spaces and we don't do data sharing between the two without
> pretty severe accessor restrictions.

My sense is the above isn't correct.  Even if userspace is congruent,
it would seem to me that another thread could dirty the cache line after
kmap does its flush.  The design of the Linux memory management system
might prevent this from happening, but it's not obvious.  That's why
I thought the kernel should use also use congruent mappings.

My 32-bit UP c3750 is fully stable.  It has run for months and I don't
see any wierd segmentation faults in userspace doing gcc builds.  On
the otherhand, the testcases on the wiki crash with high probabiity.
So, I think we are dealing with two different, but possibly related
issues.  One is a MP issue.  The other is a clone/fork race.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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To: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
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On Wed, Oct 27, 2010 at 06:19:32PM +0200, Mikulas Patocka wrote:
...
> Requeuing forever is dangerous anyway, a device returning QUEUE_FULL 
> constantly could deadlock the system. Question: is it better to risk a 
> deadlock with a broken device or to risk a false timeout under high load? 
> --- I don't know --- maybe there are valid cases where the device is 
> returning QUEUE_FULL for long time (some raid reconfiguration?) ... do you 
> know about them?

This was a problem in multi-initiator SCSI systems and I'm guessing also
an issue for FC SAN. Multiple hosts "compete" for filling the device's
available command slots. If all hosts used available queue_depth
(say 32 commands) and device only supported 64 commands at a time,
then the 65th command from host #3 might get QUEUEFULL status back.

I'm not sure what the difference is to BUSY status. Wikipedia
suggests "QUEUE_FULL" is a hint that the device is already
processing commands from the same initiator.

hth,
grant
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From - Thu Nov 08 21:06:26 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: fix compile failure with kmap_atomic changes
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Thu, 2010-10-28 at 01:18 -0400, John David Anglin wrote:
> Signed-off-by: John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
> 
> Sent effectively the same change to parisc-linux list months ago...

You did?  Why didn't you send it to Peter?  When I grumbled at him on
IRC for breaking parisc (as well as quite a few other 64 bit
architectures in mainline) he had no idea there was a problem.

James


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From - Thu Nov 08 21:06:26 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [git patches] parisc changes for 2.6.37-rc1
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Cc: linux-parisc@vger.kernel.org, kyle@mcmartin.ca
To: torvalds@linux-foundation.org
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The following changes since commit 0acc1b2afb6ded060b7d6b1b5e6ac8a00ec47547:

  Merge branch 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm (2010-10-12 09:16:01 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git next

Christian Dietrich (1):
      arch/parisc: Removing undead ifdef CONFIG_PA20

FUJITA Tomonori (1):
      parisc: remove homegrown L1_CACHE_ALIGN macro

Guy Martin (1):
      parisc: add tty driver to PDC console

Joe Perches (1):
      drivers/parisc/iosapic.c: Remove unnecessary kzalloc cast

Julia Lawall (1):
      drivers/char/agp/parisc-agp.c: eliminate memory leak

Kyle McMartin (9):
      parisc: squelch warning when using dev_get_stats
      parisc: add prlimit64 syscall
      parisc: lay groundwork for killing __do_IRQ
      parisc: convert cpu interrupts to proper flow handlers
      parisc: convert iosapic interrupts to proper flow handlers
      parisc: convert suckyio interrupts to flow handlers
      parisc: convert gsc and dino pci interrupts to flow handlers
      parisc: convert eisa interrupts to flow handlers
      parisc: kill __do_IRQ

Phil Carmody (1):
      parisc: unwind - optimise linked-list searches for modules

matt mooney (1):
      parisc: change to new flag variable

 arch/parisc/Kconfig                |    4 +
 arch/parisc/include/asm/cache.h    |    2 -
 arch/parisc/include/asm/irq.h      |    2 +-
 arch/parisc/include/asm/unistd.h   |    3 +-
 arch/parisc/kernel/irq.c           |   41 +++++------
 arch/parisc/kernel/pdc_cons.c      |  141 ++++++++++++++++++++++++++++++++++--
 arch/parisc/kernel/syscall_table.S |    1 +
 arch/parisc/kernel/unaligned.c     |    3 -
 arch/parisc/kernel/unwind.c        |    5 +-
 arch/parisc/math-emu/Makefile      |    2 +-
 drivers/char/agp/parisc-agp.c      |    4 +
 drivers/parisc/dino.c              |   29 +++-----
 drivers/parisc/eisa.c              |   29 +++-----
 drivers/parisc/gsc.c               |   36 +++------
 drivers/parisc/iosapic.c           |   56 +++-----------
 drivers/parisc/led.c               |    6 +-
 drivers/parisc/superio.c           |   25 ++-----
 17 files changed, 222 insertions(+), 167 deletions(-)
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From - Thu Nov 08 21:06:26 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH] parisc: fix compile failure with kmap_atomic changes
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Cc: linux-mm <linux-mm@kvack.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	Parisc List <linux-parisc@vger.kernel.org>,
	Peter Zijlstra <peterz@infradead.org>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Wed, Oct 27, 2010 at 01:35:47PM -0500, James Bottomley wrote:
> Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Date:   Tue Oct 26 14:21:51 2010 -0700
> 
>     mm: stack based kmap_atomic()
> 
> overlooked the fact that parisc uses kmap as a coherence mechanism, so
> even though we have no highmem, we do need to supply our own versions of
> kmap (and atomic).  This patch converts the parisc kmap to the form
> which is needed to keep it compiling (it's a simple prototype and name
> change).
> 
> Signed-off-by: James Bottomley <James.Bottomley@suse.de>

Signed-off-by: Kyle McMartin <kyle@redhat.com>

Care to send it straight to Linus? I didn't want to rebase my tree to
pull in the fix and risk his wrath...

Thanks,
--Kyle
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH] parisc: fix compile failure with kmap_atomic changes
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On Thu, 2010-10-28 at 10:16 -0400, Kyle McMartin wrote:
> On Wed, Oct 27, 2010 at 01:35:47PM -0500, James Bottomley wrote:
> > Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
> > Date:   Tue Oct 26 14:21:51 2010 -0700
> > 
> >     mm: stack based kmap_atomic()
> > 
> > overlooked the fact that parisc uses kmap as a coherence mechanism, so
> > even though we have no highmem, we do need to supply our own versions of
> > kmap (and atomic).  This patch converts the parisc kmap to the form
> > which is needed to keep it compiling (it's a simple prototype and name
> > change).
> > 
> > Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> 
> Signed-off-by: Kyle McMartin <kyle@redhat.com>
> 
> Care to send it straight to Linus? I didn't want to rebase my tree to
> pull in the fix and risk his wrath...

Sure ... I was hoping Peter would ... as part of some fairly extensive
fixes for this code, but apparently he's unavailable while flying to the
US today.  By the way, it would be Acked-by: you if I do, since the
patch didn't pass through your hands.

James


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From - Thu Nov 08 21:06:26 2018
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Subject: [PATCH] parisc: fix compile failure with kmap_atomic changes
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Cc: Peter Zijlstra <peterz@infradead.org>,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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This commit:

commit 3e4d3af501cccdc8a8cca41bdbe57d54ad7e7e73
Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date:   Tue Oct 26 14:21:51 2010 -0700

    mm: stack based kmap_atomic()

overlooked the fact that parisc uses kmap as a coherence mechanism, so
even though we have no highmem, we do need to supply our own versions of
kmap (and atomic).  This patch converts the parisc kmap to the form
which is needed to keep it compiling (it's a simple prototype and name
change).

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Acked-by: Kyle McMartin <kyle@redhat.com>

---

Linus, could you apply this directly?  Kyle already has the parisc tree
in progress and peterz (whom I thought would push this) is currently
over the Atlantic.

Thanks,

James



diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index dba11ae..f388a85 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -126,20 +126,20 @@ static inline void *kmap(struct page *page)
 
 #define kunmap(page)			kunmap_parisc(page_address(page))
 
-static inline void *kmap_atomic(struct page *page, enum km_type idx)
+static inline void *__kmap_atomic(struct page *page)
 {
 	pagefault_disable();
 	return page_address(page);
 }
 
-static inline void kunmap_atomic_notypecheck(void *addr, enum km_type idx)
+static inline void __kunmap_atomic(void *addr)
 {
 	kunmap_parisc(addr);
 	pagefault_enable();
 }
 
-#define kmap_atomic_prot(page, idx, prot)	kmap_atomic(page, idx)
-#define kmap_atomic_pfn(pfn, idx)	kmap_atomic(pfn_to_page(pfn), (idx))
+#define kmap_atomic_prot(page, prot)	kmap_atomic(page)
+#define kmap_atomic_pfn(pfn)	kmap_atomic(pfn_to_page(pfn))
 #define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
 #endif
 


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On Thu, 2010-10-28 at 02:04 -0400, John David Anglin wrote:
> > > BTW. if you flush cache on kmap, I think it couldn't work in multithreaded 
> > > environment at all --- i.e. the program has "int a, b;" both variables 
> > > share the cacheline, one thread is accessing "a" via kmap and the other 
> > > thread writes to b directly, for example "b = 5". Then, cache flushing 
> > > won't help and one of the variables will be trashed. You need kmap address 
> > > to be congruent with the linear address. But I think it's not reason for 
> > > my crash because neither gmake nor bash (that crashes) is multithreaded.
> 
> Agree.
> 
> > That statement assumes the threads share a data structure but are not
> > congruent ... which certainly isn't true for userspace.  Our only
> > incongruency which gives rise to aliasing is between the kernel and user
> > address spaces and we don't do data sharing between the two without
> > pretty severe accessor restrictions.
> 
> My sense is the above isn't correct.  Even if userspace is congruent,
> it would seem to me that another thread could dirty the cache line after
> kmap does its flush.  The design of the Linux memory management system
> might prevent this from happening, but it's not obvious.

Look at it this way:  it only happens if the kernel and userspace share
a data structure, which they never do.  If they did, it wouldn't just
show up on parisc, it would be seen on every risc system (since they're
almost all VIPT).

A far more dangerous form of cache line induced incoherence is actually
DMA.  If you DMA into a line which the kernel also touches
simultaneously, only one modification will survive.  Again we fix this
with a similar ownership model: either the kernel uses the region or the
device driver.

>   That's why
> I thought the kernel should use also use congruent mappings.

That would be ideal, but unfortunately memory in the kernel is currently
at fixed mappings (the physical to virtual offset is fixed).  If we
could get all mappings congruent, we'd actually be operating the pa88/89
processors within spec instead of having to pull kmap tricks.  Ralf has
some strange mips system that needs full congruency as well ... it's
just I don't think he's managed to get it working yet.

James

> My 32-bit UP c3750 is fully stable.  It has run for months and I don't
> see any wierd segmentation faults in userspace doing gcc builds.  On
> the otherhand, the testcases on the wiki crash with high probabiity.
> So, I think we are dealing with two different, but possibly related
> issues.  One is a MP issue.  The other is a clone/fork race.
> 
> Dave


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> On Thu, 2010-10-28 at 01:18 -0400, John David Anglin wrote:
> > Signed-off-by: John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
> > 
> > Sent effectively the same change to parisc-linux list months ago...
> 
> You did?  Why didn't you send it to Peter?  When I grumbled at him on
> IRC for breaking parisc (as well as quite a few other 64 bit
> architectures in mainline) he had no idea there was a problem.

For example, it is in the diff recently posted here:
http://permalink.gmane.org/gmane.linux.ports.parisc/3173
This diff is from last May.

I wasn't aware of the compilation issue or the IRC discussion.  I
had noticed the problem by looking at the generic code.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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On Thu, 2010-10-28 at 13:13 -0400, John David Anglin wrote:
> > On Thu, 2010-10-28 at 01:18 -0400, John David Anglin wrote:
> > > Signed-off-by: John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
> > > 
> > > Sent effectively the same change to parisc-linux list months ago...
> > 
> > You did?  Why didn't you send it to Peter?  When I grumbled at him on
> > IRC for breaking parisc (as well as quite a few other 64 bit
> > architectures in mainline) he had no idea there was a problem.
> 
> For example, it is in the diff recently posted here:
> http://permalink.gmane.org/gmane.linux.ports.parisc/3173
> This diff is from last May.

Um, so that doesn't fix the compile failure.

The specific problem is that kmap_atomic no longer takes the index
argument because Peter moved it to a stack based implementation.  All
our kmap_atomic primitives in asm/cacheflush.h still have the extra
index argument which causes a compile failure.

To fix it, I had to run through a bunch of renames and extra argument
removals.

James



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> The specific problem is that kmap_atomic no longer takes the index
> argument because Peter moved it to a stack based implementation.  All
> our kmap_atomic primitives in asm/cacheflush.h still have the extra
> index argument which causes a compile failure.

Sorry, missed that.  The issue I was trying to address was the lack of
calls to pagefault_disable() and pagefault_enable().

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [git patches] parisc build fix for 2.6.37-rc1
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Sorry, looks like I missed a build fix on top of my previous pull
request.

Thanks,
 Kyle

The following changes since commit 18cb657ca1bafe635f368346a1676fb04c512edf:

  Merge branch 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen   and branch 'for-linus' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm (2010-10-28 17:11:17 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git next

Kyle McMartin (1):
      parisc-agp: fix missing slab.h include

 drivers/char/agp/parisc-agp.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: HPMC in lba_pat_out8 on rp3440
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After the main hard drive on my rp3440, I have tried to restore
functionality on this machine.  Lenny installed without problems.
Then, I tried upgrading to testing.  All packages installed more
or less ok, but vmlinux-2.6.32-5-parisc64-smp didn't boot.  Tried
building 2.6.36 myself with a config derived from that for
2.6.32-5-parisc64-smp, but it dies in exactly the same way.

Attached hpmc dumps.  It appears that struct pci_hba_data *l is
causes the hpmc.  Maybe defining some of the DEBUG_LBA* macros
would provide more info.

The hard drive that I'm trying to boot from is in a different slot
from the one that I was using before.  However, vmlinux-2.6.26-2-parisc64-smp
boots ok from the drive.

Thoughts?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--uAKRQypu60I7Lcqm
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="hpmc-2010-10-31.txt"

PROCESSOR PIM INFORMATION

Original Product Number:  A7136A
Current Product Number:   A7136A


-----------------  Processor 0 HPMC Information - PDC Version: 46.34  ------ 

Timestamp =   Sun Oct  31 05:46:54 GMT 2010    (20:10:10:31:05:46:54)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0xe800035c00e00000 0x0000000040329434
       0x57000f7300e00000 0x8040004000000000
       0xf600105e00e00000 0xfffffff0f0c00000
       0x140003b200e00000 0x000000000000000b
       0x5600100b00e00000 0x0000000000000194
       0x5600106400e00000 0xfffffff0f0435110


General Registers 0 - 31
00-03  0000000000000000  00000000406dea70  00000000401296d0  000000007f8a0000
04-07  000000001c5d3000  000000000800000f  0000000000000000  000000007bf79c18
08-11  0000000000000000  000000007f838b90  000000001c5d9200  000000001c7aa078
12-15  0000000000000000  0000000000020598  000000000001e118  000000000001d18a
16-19  00000000fb1562d0  000000000001a000  000000000001ac94  0000000000000002
20-23  0000000040653038  0000000000000000  ffffffffc0000000  0000000000100000
24-27  000000000000000a  0000000000348002  000000007f007c00  00000000406c4270
28-31  000000000002c000  000000007f838f20  000000007f838f50  00000000003c8002

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  000000000000006a  0000000000000000  00000000000000c0  0000000000000001
12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
16-19  00000016e043e208  0000000000000000  0000000040329434  000000000f80109f
20-23  00000000a627fffb  000000004802c000  000000ff0804ff0e  4000000000000000
24-27  00000000005d7000  000000003f802000  eff1ffddadbe93c7  0000000040000b80
28-31  0000000040000b80  eff1ffddadbe93c7  000000007f838000  eff1ffddadbe93c7

Space Registers 0 - 7
00-03  0000000000013800  0000000000000000  0000000000000000  000000000001a800
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000040329438
Check Type                   = 0x20000000
Cpu State                    = 0x9e000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x0001a800
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  000000003f058340  000000003f058348  0000000000000000
08-11  000000000800000f  00000000406e5a70  ffffffffc0000000  00000000000001ff
12-15  00000000000000ff  000000007f058300  00000000406e6270  00000000406e6270
16-19  00000000406e8000  0000000040736000  00000000406e6270  00000000406e5270
20-23  000f000000000000  00000000406e5a70  0000000000000000  0000000000000000
24-27  0000000000000000  00000000406e6270  000000007f0583c8  00000000404aefdc
28-31  0000000000000003  0000000000034bc0  0000000000000003  00000000fa000000

PIM Revision                 = 0x0000000000000001                
CPU ID                       = 0x0000000000000014
CPU Revision                 = 0x0000000000000031
Cpu Serial Number            = 0x46100b89e43f0503
Check Summary                = 0x8040004000000000
SAL Timestamp                = 0x000000004ccd02ce
System Firmware Rev.         = 0x00000ba20000121a
PDC Relocation Address       = 0xfffffff0f0c00000
Available Memory             = 0x000000027fe00000
CPU Diagnose Register 2      = 0x3112022000002008
MIB_STAT                     = 0x0040000000200000
MIB_LOG1                     = 0x0000000000555500
MIB_LOG2                     = 0x0000800000000000
MIB_ECC_DATA                 = 0x808800007fffbfd8
ICache Info                  = 0x0000000000000000
DCache Info                  = 0x0000000000000000
Sharedcache Info1            = 0x0000000000000000
Sharedcache Info2            = 0x0000000000000000
MIB_RSLOG1                   = 0x0000080000000004
MIB_RSLOG2                   = 0x0010010000000000
MIB_RQLOG                    = 0x00002580001e1510
MIB_REQLOGa                  = 0x8000040000000300
MIB_REQLOGb                  = 0x01000aa400000000
Reserved                     = 0x0000000000000000
Cache Repair Detail          = 0x0000000000000000

PIM Detail Text:

-----------------  Processor 1 HPMC Information - PDC Version: 46.34  ------ 

Timestamp =   Sun Oct  31 01:32:30 GMT 2010    (20:10:10:31:01:32:30)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0xe800035c00e00000 0x00000000142e83a4
       0x57000f7300e00000 0x8040004000000000
       0x5600100b00e00000 0x0000000000000194
       0x5600106400e00000 0xfffffff0f0436fc0


General Registers 0 - 31
00-03  0000000000000000  0000000010202800  00000000102186a0  0000000000000000
04-07  0000000010202000  000000007f550150  0000000000000004  0000000000000000
08-11  000000007f0b07a8  000000007f550000  0000000000000010  0000000000000000
12-15  0000000000000004  0000000000000001  000000007f967130  ffffffff80000080
16-19  000000007f0b034a  00000000000003e8  0000000010202000  ffffffffffffffe0
20-23  00000000000000a3  0000000000000004  000000007f0b07a8  0000000000000001
24-27  0000000000000000  000000000000a300  000000007f550000  00000000142e5000
28-31  0000000000000010  000000007f0b08c0  000000007f0b0a10  000000001027c040

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  000000000000005c  0000000000000000  00000000000000c0  000000000000002a
12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
16-19  000000398d1a0a60  0000000000000000  00000000142e83a4  000000004bfc0028
20-23  00000000a627fe00  0000000000a7c054  000000ff0804ff0f  0000000000000000
24-27  00000000005dd000  000000003fa16000  ffffffffffffffff  0000000040000b80
28-31  ffffffffffffffff  ffffffffffffffff  000000007f0b0000  ffffffffffffffff

Space Registers 0 - 7
00-03  0000000000017000  0000000000000000  0000000000000000  0000000000017000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x00000000142e83a8
Check Type                   = 0x20000000
Cpu State                    = 0x9e000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00017000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  00000000401f7b10  000000003f050340  0000000000000000  000000007c3f2540
08-11  000000004021e018  000000007ec05300  0000000000000000  0000000000000002
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  000000007f037000  000000004053efe0
28-31  00000000406c7300  0000000042866a80  0000000000000000  00000000406e8300

PIM Revision                 = 0x0000000000000001                
CPU ID                       = 0x0000000000000014
CPU Revision                 = 0x0000000000000031
Cpu Serial Number            = 0x46100b89e43f0503
Check Summary                = 0x8040004000000000
SAL Timestamp                = 0x000000004cccc72e
System Firmware Rev.         = 0x00000ba20000121a
PDC Relocation Address       = 0xfffffff0f0c00000
Available Memory             = 0x000000027fe00000
CPU Diagnose Register 2      = 0x3152020008082008
MIB_STAT                     = 0x0040000000100000
MIB_LOG1                     = 0x0000000000555500
MIB_LOG2                     = 0x0000800000000000
MIB_ECC_DATA                 = 0x808800007fffbfd8
ICache Info                  = 0x0000000000000000
DCache Info                  = 0x0000000000000000
Sharedcache Info1            = 0x0000000000000000
Sharedcache Info2            = 0x0000000000000080
MIB_RSLOG1                   = 0x0000088000000004
MIB_RSLOG2                   = 0x0011010000000000
MIB_RQLOG                    = 0x046c80003ffeb930
MIB_REQLOGa                  = 0x8000044000000200
MIB_REQLOGb                  = 0x01000aa400000000
Reserved                     = 0x0000000000000000
Cache Repair Detail          = 0x0000000000000000

PIM Detail Text:

-----------------  Processor 2 HPMC Information - PDC Version: 46.34  ------ 

Timestamp =   Sun Oct  31 01:32:29 GMT 2010    (20:10:10:31:01:32:29)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0xe800035c00e00000 0x000000004031e41c
       0x57000f7300e00000 0x8040004000000000
       0xf600105e00e00000 0xfffffff0f0c00000
       0x140003b200e00000 0x000000000000000b
       0x5600100b00e00000 0x0000000000000194
       0x5600106400e00000 0xfffffff0f0438e70


General Registers 0 - 31
00-03  0000000000000000  00000000406e1300  0000000040128748  000000007f5fc000
04-07  000000001c54f000  000000000800000f  0000000000000001  0000000000000000
08-11  0000000000000000  000000007fa30ba0  000000001c554fe0  000000001837e0b8
12-15  0000000000000000  0000000000020630  000000000001e128  000000000001d18a
16-19  00000000fb4e52d0  000000000001a000  000000000001ac94  0000000000000002
20-23  00000000406586a8  0000000000000000  ffffffffc0000000  0000000000100000
24-27  000000000000000a  0000000000348002  000000007f085a00  00000000406c7300
28-31  000000000002c000  000000007fa30eb0  000000007fa30ee0  00000000003c8002

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  000000000000006a  0000000000000000  00000000000000c0  0000000000000001
12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
16-19  0000003974c44900  0000000000000000  000000004031e41c  000000000f80109f
20-23  00000000a627fffb  000000004802c000  000000ff0804ff0e  8000000000000000
24-27  00000000005dd000  000000003fa4a000  fffffeffffffffff  0000000040000b80
28-31  fffffffffffeffff  ffffffffffffffff  000000007fa30000  ffffffffffffffff

Space Registers 0 - 7
00-03  0000000000012000  0000000000000000  0000000000000000  000000000001a800
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x000000004031e420
Check Type                   = 0x20000000
Cpu State                    = 0x9e000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x0001a800
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  00000000401f7b10  000000003f050340  0000000000000000  000000007c3f2540
08-11  000000004021e018  000000007ec05300  0000000000000000  0000000000000002
12-15  000000007f054010  000000007f0503e0  000000007f054000  00000000406c7300
16-19  0000000000000002  000000007f050400  000000007f054000  00000000406c7300
20-23  00000000406d7300  00000000406e7b00  000000000000012e  0000000000000000
24-27  0000000000000000  000000000095d6b8  000000007f037000  000000004053efe0
28-31  00000000406c7300  0000000042866a80  0000000000000000  00000000406e8300

PIM Revision                 = 0x0000000000000001                
CPU ID                       = 0x0000000000000014
CPU Revision                 = 0x0000000000000031
Cpu Serial Number            = 0x44b44b04543f060a
Check Summary                = 0x8040004000000000
SAL Timestamp                = 0x000000004cccc72d
System Firmware Rev.         = 0x00000ba20000121a
PDC Relocation Address       = 0xfffffff0f0c00000
Available Memory             = 0x000000027fe00000
CPU Diagnose Register 2      = 0x31120200c1102008
MIB_STAT                     = 0x0040000000200000
MIB_LOG1                     = 0x0000000000500000
MIB_LOG2                     = 0x0000800000000000
MIB_ECC_DATA                 = 0xc55b2c1befd0fbdc
ICache Info                  = 0x0000000000000000
DCache Info                  = 0x0000000000000000
Sharedcache Info1            = 0x0000000000000000
Sharedcache Info2            = 0x0000000000000000
MIB_RSLOG1                   = 0x0000006000000004
MIB_RSLOG2                   = 0x0000c10000000000
MIB_RQLOG                    = 0x00002580001e1510
MIB_REQLOGa                  = 0x8000003000000200
MIB_REQLOGb                  = 0x01000aa400000000
Reserved                     = 0x0000000000000000
Cache Repair Detail          = 0x0000000000000000

PIM Detail Text:

-----------------  Processor 3 HPMC Information - PDC Version: 46.34  ------ 

Timestamp =   Sun Oct  31 02:14:52 GMT 2010    (20:10:10:31:02:14:52)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0xe800035c00e00000 0x000000004031e41c
       0x57000f7300e00000 0x8040004000000000
       0xf600105e00e00000 0xfffffff0f0c00000
       0x140003b200e00000 0x000000000000000b
       0x5600100b00e00000 0x0000000000000194
       0x5600106400e00000 0xfffffff0f043ad20


General Registers 0 - 31
00-03  0000000000000000  00000000406e1300  0000000040128748  000000007f620000
04-07  000000001c46a000  000000000800000f  0000000000000001  0000000000000000
08-11  0000000000000000  000000007fa38ba0  000000001c46ffe0  000000001c5470b8
12-15  0000000000000000  0000000000020630  000000000001e128  000000000001d18a
16-19  00000000fb6da2d0  000000000001a000  000000000001ac94  0000000000000002
20-23  00000000406586a8  0000000000000000  ffffffffc0000000  0000000000100000
24-27  000000000000000a  0000000000348002  000000007f085a00  00000000406c7300
28-31  000000000002c000  000000007fa38eb0  000000007fa38ee0  00000000003c8002

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  000000000000006c  0000000000000000  00000000000000c0  0000000000000001
12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
16-19  000000157f727a8c  0000000000000000  000000004031e41c  000000000f80109f
20-23  00000000a627fffb  000000004802c000  000000ff0804ff0e  0000000000000000
24-27  00000000005dd000  000000003f906000  ffffffffffffffff  0000000040000b80
28-31  ffffffffffffffff  fffffff7ffffffff  000000007fa38000  ffffffffffffffff

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x000000004031e420
Check Type                   = 0x20000000
Cpu State                    = 0x9e000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x0001b000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  00000000401f7b10  000000003f050340  0000000000000000  000000007c3ffe40
08-11  000000004021e018  000000007ec05300  0000000000000000  0000000000000002
12-15  000000007f054010  000000007f0503e0  000000007f054000  00000000406c7300
16-19  0000000000000002  000000007f050400  000000007f054000  00000000406c7300
20-23  00000000406d7300  00000000406e7b00  000000000000012e  0000000000000000
24-27  0000000000000000  000000000095d6b8  000000007f037000  000000004053efe0
28-31  00000000406c7300  0000000042866a80  0000000000000000  00000000406e8300

PIM Revision                 = 0x0000000000000001                
CPU ID                       = 0x0000000000000014
CPU Revision                 = 0x0000000000000031
Cpu Serial Number            = 0x44b44b04543f060a
Check Summary                = 0x8040004000000000
SAL Timestamp                = 0x000000004cccd11c
System Firmware Rev.         = 0x00000ba20000121a
PDC Relocation Address       = 0xfffffff0f0c00000
Available Memory             = 0x000000027fe00000
CPU Diagnose Register 2      = 0x31520200c9182008
MIB_STAT                     = 0x0040000000100000
MIB_LOG1                     = 0x0000000000500000
MIB_LOG2                     = 0x0000800000000000
MIB_ECC_DATA                 = 0xc55b2c1befd0fbdc
ICache Info                  = 0x0000000000000000
DCache Info                  = 0x0000000000000000
Sharedcache Info1            = 0x0000000000000000
Sharedcache Info2            = 0x0000000000000000
MIB_RSLOG1                   = 0x000000e000000004
MIB_RSLOG2                   = 0x0001c10000000000
MIB_RQLOG                    = 0x00002580001e1910
MIB_REQLOGa                  = 0x8000007000000300
MIB_REQLOGb                  = 0x01000aa400000000
Reserved                     = 0x0000000000000000
Cache Repair Detail          = 0x0000000000000000

PIM Detail Text:

--------------  Memory Error Log Information  --------------

   No errors logged for this bus

------------  I/O Module Error Log Information  ------------

IO Subsystem Log Entries

Found 2 PCI Comp errors
Found 1 PCI Bus error
------------------------------------------------
Detail display of IO subsystem log entries
------------------------------------------

  PCI Component Error information

PCI Component Error 1
--- Section Header ---
GUID
  data1	0xe429faf6
  data2	0x3cb7
  data3	0x11d4
  datat4	0xbc a7 0 80 c7 3c 88 81 
REVISION		0x0200
ERROR_RECOVERY_INFO		0x80
SECTION_LENGTH		0x00000188
VALIDATION_BITS		0x0000000000000023
PCI_COMP_ERROR_STATUS		0x00000000005a2000
PCI_COMP_INFO		0x0000000000004a7c 0x0035103303104100
     Vendor Id/Device Id:                  0x35/1033
     Base Class/Sub Class/Program Interface: 0x41/10/3
     Segment/Bus/Device/Function:          0x0/0/1/0
PCI_COMP_MEM_NUM		0
PCI_COMP_IO_NUM		0
PCI_COMP_REGS_DATA_PAIR
     Address                Data
     0x0000000000000000     0x0000000000000000
     0x0000000000000000     0x0000000000000000
     0x0000000000000000     0x0000000000000000
     0x0000000000000000     0x0000000000000000
     0x0000000000000000     0x0000000000000000
     0x0000000000000000     0x0000000000000000

PCI_COMP_OEM_DATA_STRUCT
--- Section Header ---
GUID
  data1	0x4f7d86a
  data2	0x598b
  data3	0x4a0a
  data4	0xaa 62 ff 70 73 46 67 4d 
LENGTH		232
PHYSICAL_LOCATION		0xffffffffffffff00
REGISTRATION_NUMBER		0x0000000000000008
CONFIG_REGISTERS_DATA
        Offset    Size   Data
          0        8     0x2210014600351033
          8        8     0x008080200c031041
         16        8     0x0000000080002000
         24        8     0x0000000000000000
         32        8     0x0000000000000000
         40        8     0x0035103300000000
         48        8     0x0000004000000000
         56        8     0x2a01010000000000
          0        0     0x0000000000000000
          0        0     0x0000000000000000
          0        0     0x0000000000000000
          0        0     0x0000000000000000

End of PCI Component Error Information for Error 1

PCI Component Error 2
--- Section Header ---
GUID
  data1	0xe429faf6
  data2	0x3cb7
  data3	0x11d4
  datat4	0xbc a7 0 80 c7 3c 88 81 
REVISION		0x0200
ERROR_RECOVERY_INFO		0x80
SECTION_LENGTH		0x00000188
VALIDATION_BITS		0x0000000000000023
PCI_COMP_ERROR_STATUS		0x00000000005a2000
PCI_COMP_INFO		0x0000000000004a7c 0x0035103303104101
     Vendor Id/Device Id:                  0x35/1033
     Base Class/Sub Class/Program Interface: 0x41/10/3
     Segment/Bus/Device/Function:          0x0/0/1/1
PCI_COMP_MEM_NUM		0
PCI_COMP_IO_NUM		0
PCI_COMP_REGS_DATA_PAIR
     Address                Data
     0x0000000000000000     0x0000000000000000
     0x0000000000000000     0x0000000000000000
     0x0000000000000000     0x0000000000000000
     0x0000000000000000     0x0000000000000000
     0x0000000000000000     0x0000000000000000
     0x0000000000000000     0x0000000000000000

PCI_COMP_OEM_DATA_STRUCT
--- Section Header ---
GUID
  data1	0x4f7d86a
  data2	0x598b
  data3	0x4a0a
  data4	0xaa 62 ff 70 73 46 67 4d 
LENGTH		232
PHYSICAL_LOCATION		0xffffffffffffff00
REGISTRATION_NUMBER		0x0000000000000008
CONFIG_REGISTERS_DATA
        Offset    Size   Data
          0        8     0x2210014600351033
          8        8     0x000080200c031041
         16        8     0x0000000080001000
         24        8     0x0000000000000000
         32        8     0x0000000000000000
         40        8     0x0035103300000000
         48        8     0x0000004000000000
         56        8     0x2a01020000000000
          0        0     0x0000000000000000
          0        0     0x0000000000000000
          0        0     0x0000000000000000
          0        0     0x0000000000000000

End of PCI Component Error Information for Error 2

End of PCI Component Error Information
  PCI Bus Error information

PCI Bus Error 1
--- Section Header ---
GUID
  data1	0xe429faf4
  data2	0x3cb7
  data3	0x11d4
  data4	0xbc a7 0 80 c7 3c 88 81 
REVISION		0x0200
ERROR_RECOVERY_INFO		0x84
SECTION_LENGTH		0x00000108
VALIDATION_BITS		0x000000000000074f
PCI_BUS_ERROR_STATUS	0x00000000005a2000
PCI_BUS_ERROR_TYPE	0x0000000000000004
PCI_BUS_ID		0x0000000000000000
PCI_BUS_ADDRESS		0x0000000000000d20
PCI_BUS_DATA		0x0000000000000000
PCI_BUS_CMD		0x0000000000000000
PCI_BUS_REQUESTOR_ID	0x00000000fed20000
PCI_BUS_COMPLETER_ID	0x0000000000000000
PCI_BUS_TARGET_ID	0x0000000000000d20
PCI_BUS_OEM_ID		0x0000000000003d90

Bus OEM Data
  CEC Header:
--- OEM Data Header ---

GUID
  data1	0x9fe64482
  data2	0xa02d
  data3	0x4ef7
  data4	0xad e6 c6 63 59 62 53 99 

--- OEM Data Body ---

CELL_NUMBER		0
SBA_NUMBER		0
ROPE_NUMBER		0
--- Mercury Info ---
ERROR_STATUS		0x000000010000021c
ERROR_MASTER_ID_LOG	0x0000000000000000
INBOUND_ERR_ADDRESS	0x0000000000000000
INBOUND_ERR_ATTRIBUTE	0x0000000000000000
COMPLETION_MESSAGE_LOG	0x0000000000000000
OUTBOUND_ERR_ADDRESS	0x0000000000000d20
ERROR_CONFIG		0x0000000000000030
STATUS_INFO_CONTROL	0x0000000000000000
FUNC_ID			0x22b00146122e103c
CAPABILITIES_LIST	0x0f00023700200002
AGP_COMMAND		0x0000000000000000
PCIX_CAPABILITIES	0x0013ff0000010007
OLR_CONTROL		0x00023f1b00032403
CLOCK_CONTROL		0x0000000000000048
BUS_MODE		0x9db864ef36f58460

End of PCI Bus Error Information for Error 1

End of PCI Bus Error Information

PAGE DEALLOCATION TABLE INFORMATION

   Location      Address       Type        Perm  Page  
   ------------  ------------  ----------  ----  ---------

   No Entries in Page Deallocation Table 

   PDT Entries Used: 0
   PDT Entries Free: 3000
   PDT Total Size:   3000

--- vmlinux-2.6.36 ---

Processor 0 hpmc was here:
 
0000000040329408 <lba_pat_out8>:
    40329408:   d7 9f 18 52     depwi,z -1,29,14,ret0
    4032940c:   53 5f 03 30     ldd 198(r26),r31
    40329410:   db 39 0b f0     extrd,u r25,63,16,r25
    40329414:   db 33 0b fe     extrd,u r25,63,2,r19
    40329418:   0b 99 02 39     and r25,ret0,r25
    4032941c:   f3 39 11 4a     depd,z r25,53,54,r25
    40329420:   0a 79 0a 39     add,l r25,r19,r25
    40329424:   0b 3f 0a 3f     add,l r31,r25,r31
    40329428:   0f f8 12 00     stb r24,0(r31)
    4032942c:   0f 40 10 dc     ldd 0(r26),ret0
    40329430:   2b 6d 10 00     addil L%1a800,dp,r1
->  40329434:   0f 80 10 9f     ldw 0(ret0),r31
    40329438:   50 3c 09 f0     ldd 4f8(r1),ret0
    4032943c:   e8 40 d0 00     bve (rp)
    40329440:   0f 9f 12 80     stw r31,0(ret0)
    40329444:   00 00 00 00     break 0,0

lba_pat_out8 was called from outb.

--- vmlinux-2.6.32-5-parisc64-smp ---

Processor 2 and 3 hpmcs were here:

000000004031e3f0 <lba_pat_out8>:
    4031e3f0:   d7 9f 18 52     depwi,z -1,29,14,ret0
    4031e3f4:   53 5f 03 30     ldd 198(r26),r31
    4031e3f8:   db 39 0b f0     extrd,u r25,63,16,r25
    4031e3fc:   db 33 0b fe     extrd,u r25,63,2,r19
    4031e400:   0b 99 02 39     and r25,ret0,r25
    4031e404:   f3 39 11 4a     depd,z r25,53,54,r25
    4031e408:   0a 79 0a 39     add,l r25,r19,r25
    4031e40c:   0b 3f 0a 3f     add,l r31,r25,r31
    4031e410:   0f f8 12 00     stb r24,0(r31)
    4031e414:   0f 40 10 dc     ldd 0(r26),ret0
    4031e418:   2b 6d 00 00     addil L%1a000,dp,r1
->  4031e41c:   0f 80 10 9f     ldw 0(ret0),r31
    4031e420:   50 3c 0f 10     ldd 788(r1),ret0
    4031e424:   e8 40 d0 00     bve (rp)
    4031e428:   0f 9f 12 80     stw r31,0(ret0)
    4031e42c:   00 00 00 00     break 0,0

lba_pat_out8 was again called from outb:

00000000401286d0 <outb>:
    401286d0:   0f c2 12 c1     std rp,-10(sp)
    401286d4:   db 39 0f e0     extrd,s r25,63,32,r25
    401286d8:   d3 3c 1d f0     extrw,s r25,15,16,ret0
    401286dc:   73 c4 01 08     std,ma r4,80(sp)
    401286e0:   db 58 0b f8     extrd,u r26,63,8,r24
    401286e4:   2b 70 30 00     addil L%21800,dp,r1
    401286e8:   db 9a 0f e0     extrd,s ret0,63,32,r26
    401286ec:   50 3c 0b 50     ldd 5a8(r1),ret0
    401286f0:   0f 80 10 9c     ldw 0(ret0),ret0
    401286f4:   87 80 20 38     cmpib,= 0,ret0,40128718 <outb+0x48>
    401286f8:   2b 68 00 00     addil L%10000,dp,r1
    401286fc:   bf 40 20 2a     cmpb,*<>,n r0,r26,40128718 <outb+0x48>
    40128700:   08 18 02 5a     copy r24,r26
    40128704:   37 dd 3f a1     ldo -30(sp),ret1
    40128708:   e8 fc af 14     b,l 40321e98 <eisa_out8>,rp
    4012870c:   d3 39 1b f0     extrw,u r25,31,16,r25
    40128710:   e8 00 00 68     b,l 4012874c <outb+0x7c>,r0
    40128714:   53 c2 3e e1     ldd -90(sp),rp
    40128718:   50 3c 0c 90     ldd 648(r1),ret0
    4012871c:   0f 9a 20 da     ldd,s r26(ret0),r26
    40128720:   9f 40 20 40     cmpb,*= r0,r26,40128748 <outb+0x78>
    40128724:   2b 70 30 00     addil L%21800,dp,r1
    40128728:   d3 39 1b f0     extrw,u r25,31,16,r25
    4012872c:   50 3c 02 10     ldd 108(r1),ret0
    40128730:   0f 80 10 dc     ldd 0(ret0),ret0
    40128734:   37 dd 3f a1     ldo -30(sp),ret1
    40128738:   53 9c 00 30     ldd 18(ret0),ret0
    4012873c:   53 82 00 20     ldd 10(ret0),rp
    40128740:   e8 40 f0 00     bve,l (rp),rp
    40128744:   53 9b 00 30     ldd 18(ret0),dp
->  40128748:   53 c2 3e e1     ldd -90(sp),rp
    4012874c:   e8 40 d0 00     bve (rp)
    40128750:   53 c4 3f 0d     ldd,mb -80(sp),r4
    40128754:   00 00 00 00     break 0,0

In all three cases, register %ret0 contained 000000000002c000.




--uAKRQypu60I7Lcqm--
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From - Thu Nov 08 21:06:27 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPMC in lba_pat_out8 on rp3440
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On Sun, 31 Oct 2010, John David Anglin wrote:

> Attached hpmc dumps.  It appears that struct pci_hba_data *l is
> causes the hpmc.  Maybe defining some of the DEBUG_LBA* macros
> would provide more info.

The PCI component errors seem USB related:

dave@mx3210:~/linux/linux-2.6.36.y/drivers/parisc$ lspci -nn
00:01.0 USB Controller [0c03]: NEC Corporation USB [1033:0035] (rev 41)
00:01.1 USB Controller [0c03]: NEC Corporation USB [1033:0035] (rev 41)
00:01.2 USB Controller [0c03]: NEC Corporation USB 2.0 [1033:00e0] (rev 02)
00:02.0 IDE interface [0101]: Silicon Image, Inc. SiI 0649 Ultra ATA/100 PCI to ATA Host Controller [1095:0649] (rev 02)
20:01.0 SCSI storage controller [0100]: LSI Logic / Symbios Logic 53c1010 66MHz  Ultra3 SCSI Adapter [1000:0021] (rev 01)
20:01.1 SCSI storage controller [0100]: LSI Logic / Symbios Logic 53c1010 66MHz  Ultra3 SCSI Adapter [1000:0021] (rev 01)
20:02.0 Ethernet controller [0200]: Broadcom Corporation NetXtreme BCM5701 Gigabit Ethernet [14e4:1645] (rev 15)
e0:01.0 Communication controller [0780]: Hewlett-Packard Company Auxiliary Diva Serial Port [103c:1290] (rev 01)
e0:01.1 Serial controller [0700]: Hewlett-Packard Company Diva Serial [GSP] Multiport UART [103c:1048] (rev 03)
e0:02.0 VGA compatible controller [0300]: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE] [1002:5159]

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:27 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: HPMC in lba_pat_out8 on rp3440
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On Sun, 31 Oct 2010, John David Anglin wrote:

> On Sun, 31 Oct 2010, John David Anglin wrote:
> 
> > Attached hpmc dumps.  It appears that struct pci_hba_data *l is
> > causes the hpmc.  Maybe defining some of the DEBUG_LBA* macros
> > would provide more info.

Attached console output with debug macros enabled.  Also, attached
new hpmc dump as this one seems different.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--gKMricLos+KVdGMg
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="hpmc-2010-10-31-2.txt"

Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.17 root@c3k Sun Mar  7 16:13:48 MST 2010
Skipping extended partition 6 - beyond reach of IPL

Partition Start(MB) End(MB) Id Type
1               1      31   f0 Palo
2              32     156   83 ext2
5             157    6832   83 ext2

PALO(F0) partition contains:
    0/vmlinux64 6241289 bytes @ 0x48000

Command line for kernel: 'root=/dev/sdb5 console=ttyS1 HOME=/ palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
Selected ramdisk: /initrd.img from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 5115904 mediaptr 0x1000
Segment 1 load 0066f890 size 489088 mediaptr 0x4e2890
Segment 2 load 006e8000 size 319296 mediaptr 0x55a000
Loading ramdisk 11802446 bytes @ 3f4ad000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.36+ (dave@mx3210) (gcc version 4.3.5 (GCC) ) #4 SMP Sun Oct 31 14:51:20 EDT 2010
[    0.000000] unwind_init: start = 0x40504000, end = 0x40535060, entries = 12550
[    0.000000] WARNING: Out of order unwind entry! 0000000040505410 and 0000000040505420
[    0.000000] WARNING: Out of order unwind entry! 0000000040505420 and 0000000040505430
[    0.000000] WARNING: Out of order unwind entry! 0000000040506040 and 0000000040506050
[    0.000000] WARNING: Out of order unwind entry! 0000000040506050 and 0000000040506060
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00008870 00000491 00000000 00000002 3e0505e7352af711 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000301
[    0.000000] CPUID vers 20 rev 4 (0x00000284)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/800/rp3440  
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000000100000000 End 0x000000027fdfffff Size   6142 MB
[    0.000000]  2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
[    0.000000] Total Memory: 10238 MB
[    0.000000] initrd: 7f4ad000-7ffee74e
[    0.000000] initrd: reserving 3f4ad000-3ffee74e (mem_max 27fe00000)
[    0.000000] PERCPU: Embedded 10 pages/cpu @00000000428a4000 s12096 r8192 d20672 u65536
[    0.000000] pcpu-alloc: s12096 r8192 d20672 u65536 alloc=16*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 [0] 4 [0] 5 [0] 6 [0] 7 
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 2585095
[    0.000000] Kernel command line: root=/dev/sdb5 console=ttyS1 HOME=/ palo_kernel=2/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)
[    0.000000] Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[    0.000000] Memory: 10276732k/10483712k available (3469k kernel code, 206980k reserved, 1477k data, 312k init)
[    0.000000] virtual kernel memory layout:
[    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
[    0.000000]     memory  : 0x0000000040000000 - 0x0000004140000000   (266240 MB)
[    0.000000]       .init : 0x00000000406e8000 - 0x0000000040736000   ( 312 kB)
[    0.000000]       .data : 0x00000000404634d0 - 0x00000000405d49d0   (1477 kB)
[    0.000000]       .text : 0x0000000040100000 - 0x00000000404634d0   (3469 kB)
[    0.000000] SLUB: Genslabs=9, HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=8
[    0.000000] Hierarchical RCU implementation.
[    0.000000] 	CONFIG_RCU_FANOUT set to non-default value of 32
[    0.000000] 	RCU-based detection of stalled CPUs is disabled.
[    0.000000] 	Verbose stalled-CPUs detection is disabled.
[    0.000000] NR_IRQS:128
[    0.000000] Console: colour dummy device 160x64
[    0.000000] Calibrating delay loop... 1597.44 BogoMIPS (lpj=3194880)
[    0.096000] pid_max: default: 32768 minimum: 301
[    0.096000] Security Framework initialized
[    0.096000] SELinux:  Disabled at boot.
[    0.096000] Mount-cache hash table entries: 256
[    0.104000] Initializing cgroup subsys ns
[    0.104000] Initializing cgroup subsys cpuacct
[    0.104000] Initializing cgroup subsys devices
[    0.108000] Initializing cgroup subsys freezer
[    0.108000] Initializing cgroup subsys net_cls
[    0.116000] Brought up 1 CPUs
[    0.116000] devtmpfs: initialized
[    0.120000] regulator: core version 0.5
[    0.124000] NET: Registered protocol family 16
[    0.124000] EISA bus registered
[    0.132000] Searching for devices...
[    0.256000] Found devices:
[    0.256000] 1. Storm Peak Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x887, 0x00004 }
[    0.260000] 2. Storm Peak Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x887, 0x00004 }
[    0.260000] 3. Storm Peak Slow at 0xfffffffffe798000 [152] { 0, 0x0, 0x887, 0x00004 }
[    0.264000] 4. Storm Peak Slow at 0xfffffffffe799000 [153] { 0, 0x0, 0x887, 0x00004 }
[    0.272000] 5. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
[    0.280000] 6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
[    0.288000] 7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
[    0.288000] 8. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
[    0.296000] 9. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
[    0.300000] 10. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
[    0.308000] 11. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
[    0.316000] 12. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
[    0.324000] 13. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
[    0.324000] 14. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
[    0.332000] Enabling PDC_PAT chassis codes support v0.05
[    0.880000] Releasing cpu 1 now, hpa=fffffffffe781000
[    0.928000] FP[1] enabled: Rev 1 Model 20
[    0.948000] Releasing cpu 2 now, hpa=fffffffffe798000
[    0.996000] FP[2] enabled: Rev 1 Model 20
[    1.024000] Releasing cpu 3 now, hpa=fffffffffe799000
[    1.072000] FP[3] enabled: Rev 1 Model 20
[    1.092000] CPU(s): 4 x PA8800 (Mako) at 800.005900 MHz
[    1.096000] Setting cache flush threshold to 2000000 (4 CPUs online)
[    1.136000] SBA found Pluto 2.3 at 0xfffffffffed00000
[    1.184000] lba_set_iregs() ibase 0x40000000 imask 0x0
[    1.204000] lba_set_iregs() ibase 0x40000000 imask 0x0
[    1.228000] lba_set_iregs() ibase 0x40000000 imask 0x0
[    1.248000] lba_set_iregs() ibase 0x40000000 imask 0x0
[    1.272000] lba_set_iregs() ibase 0x40000000 imask 0x0
[    1.292000] lba_set_iregs() ibase 0x40000000 imask 0x0
[    1.312000] lba_set_iregs() ibase 0x40000000 imask 0x0
[    1.336000] Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
[    1.392000] mercury_cfg_read(0+ 0) -> 0xffffffff
[    1.392000] mercury_cfg_read(800+ 0) -> 0x351033
[    1.392000] mercury_cfg_read(800+ e) -> 0x80
[    1.392000] mercury_cfg_read(800+ 6) -> 0x210
[    1.392000] mercury_cfg_read(800+34) -> 0x40
[    1.400000] mercury_cfg_read(800+40) -> 0x1
[    1.400000] mercury_cfg_read(800+41) -> 0x0
[    1.408000] mercury_cfg_read(800+ 8) -> 0xc031041
[    1.408000] mercury_cfg_read(800+ 6) -> 0x210
[    1.412000] mercury_cfg_read(800+34) -> 0x40
[    1.412000] mercury_cfg_read(800+40) -> 0x1
[    1.416000] mercury_cfg_read(800+41) -> 0x0
[    1.420000] mercury_cfg_read(800+3d) -> 0x1
[    1.420000] mercury_cfg_read(800+3c) -> 0x0
[    1.428000] mercury_cfg_read(800+ 4) -> 0x146
[    1.428000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    1.436000] mercury_cfg_read(800+10) -> 0x80002000
[    1.436000] mercury_cfg_write(800+10) <- 0xffffffff (c)
[    1.444000] mercury_cfg_read(800+10) -> 0xfffff000
[    1.444000] mercury_cfg_write(800+10) <- 0x80002000 (c)
[    1.452000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    1.452000] mercury_cfg_read(800+ 4) -> 0x146
[    1.456000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    1.456000] mercury_cfg_read(800+14) -> 0x0
[    1.456000] mercury_cfg_write(800+14) <- 0xffffffff (c)
[    1.464000] mercury_cfg_read(800+14) -> 0x0
[    1.464000] mercury_cfg_write(800+14) <- 0x0 (c)
[    1.472000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    1.472000] mercury_cfg_read(800+ 4) -> 0x146
[    1.480000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    1.480000] mercury_cfg_read(800+18) -> 0x0
[    1.484000] mercury_cfg_write(800+18) <- 0xffffffff (c)
[    1.488000] mercury_cfg_read(800+18) -> 0x0
[    1.492000] mercury_cfg_write(800+18) <- 0x0 (c)
[    1.492000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    1.500000] mercury_cfg_read(800+ 4) -> 0x146
[    1.500000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    1.508000] mercury_cfg_read(800+1c) -> 0x0
[    1.508000] mercury_cfg_write(800+1c) <- 0xffffffff (c)
[    1.516000] mercury_cfg_read(800+1c) -> 0x0
[    1.516000] mercury_cfg_write(800+1c) <- 0x0 (c)
[    1.516000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    1.524000] mercury_cfg_read(800+ 4) -> 0x146
[    1.524000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    1.528000] mercury_cfg_read(800+20) -> 0x0
[    1.528000] mercury_cfg_write(800+20) <- 0xffffffff (c)
[    1.536000] mercury_cfg_read(800+20) -> 0x0
[    1.536000] mercury_cfg_write(800+20) <- 0x0 (c)
[    1.544000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    1.544000] mercury_cfg_read(800+ 4) -> 0x146
[    1.552000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    1.552000] mercury_cfg_read(800+24) -> 0x0
[    1.560000] mercury_cfg_write(800+24) <- 0xffffffff (c)
[    1.560000] mercury_cfg_read(800+24) -> 0x0
[    1.560000] mercury_cfg_write(800+24) <- 0x0 (c)
[    1.564000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    1.564000] mercury_cfg_read(800+ 4) -> 0x146
[    1.572000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    1.572000] mercury_cfg_read(800+30) -> 0x0
[    1.580000] mercury_cfg_write(800+30) <- 0xfffff800 (c)
[    1.580000] mercury_cfg_read(800+30) -> 0x0
[    1.588000] mercury_cfg_write(800+30) <- 0x0 (c)
[    1.588000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    1.596000] mercury_cfg_read(800+2c) -> 0x1033
[    1.596000] mercury_cfg_read(800+2e) -> 0x35
[    1.600000] mercury_cfg_read(800+ 6) -> 0x210
[    1.600000] mercury_cfg_read(800+34) -> 0x40
[    1.600000] mercury_cfg_read(800+40) -> 0x1
[    1.608000] mercury_cfg_read(800+41) -> 0x0
[    1.608000] mercury_cfg_read(800+ 6) -> 0x210
[    1.616000] mercury_cfg_read(800+34) -> 0x40
[    1.616000] mercury_cfg_read(800+40) -> 0x1
[    1.624000] mercury_cfg_read(800+41) -> 0x0
[    1.624000] mercury_cfg_read(800+ 6) -> 0x210
[    1.624000] mercury_cfg_read(800+34) -> 0x40
[    1.632000] mercury_cfg_read(800+40) -> 0x1
[    1.632000] mercury_cfg_read(800+42) -> 0x7e02
[    1.640000] mercury_cfg_read(800+44) -> 0x0
[    1.640000] mercury_cfg_write(800+44) <- 0x8000 (c)
[    1.652000] mercury_cfg_read(800+ 6) -> 0x210
[    1.652000] mercury_cfg_read(800+34) -> 0x40
[    1.660000] mercury_cfg_read(800+40) -> 0x1
[    1.660000] mercury_cfg_read(800+41) -> 0x0
[    1.660000] mercury_cfg_read(900+ 0) -> 0x351033
[    1.672000] mercury_cfg_read(900+ e) -> 0x0
[    1.672000] mercury_cfg_read(900+ 6) -> 0x210
[    1.680000] mercury_cfg_read(900+34) -> 0x40
[    1.680000] mercury_cfg_read(900+40) -> 0x1
[    1.688000] mercury_cfg_read(900+41) -> 0x0
[    1.688000] mercury_cfg_read(900+ 8) -> 0xc031041
[    1.696000] mercury_cfg_read(900+ 6) -> 0x210
[    1.696000] mercury_cfg_read(900+34) -> 0x40
[    1.696000] mercury_cfg_read(900+40) -> 0x1
[    1.708000] mercury_cfg_read(900+41) -> 0x0
[    1.708000] mercury_cfg_read(900+3d) -> 0x2
[    1.716000] mercury_cfg_read(900+3c) -> 0x0
[    1.716000] mercury_cfg_read(900+ 4) -> 0x146
[    1.728000] mercury_cfg_write(900+ 4) <- 0x144 (c)
[    1.728000] mercury_cfg_read(900+10) -> 0x80001000
[    1.736000] mercury_cfg_write(900+10) <- 0xffffffff (c)
[    1.736000] mercury_cfg_read(900+10) -> 0xfffff000
[    1.748000] mercury_cfg_write(900+10) <- 0x80001000 (c)
[    1.748000] mercury_cfg_write(900+ 4) <- 0x146 (c)
[    1.752000] mercury_cfg_read(900+ 4) -> 0x146
[    1.752000] mercury_cfg_write(900+ 4) <- 0x144 (c)
[    1.756000] mercury_cfg_read(900+14) -> 0x0
[    1.764000] mercury_cfg_write(900+14) <- 0xffffffff (c)
[    1.764000] mercury_cfg_read(900+14) -> 0x0
[    1.776000] mercury_cfg_write(900+14) <- 0x0 (c)
[    1.776000] mercury_cfg_write(900+ 4) <- 0x146 (c)
[    1.784000] mercury_cfg_read(900+ 4) -> 0x146
[    1.784000] mercury_cfg_write(900+ 4) <- 0x144 (c)
[    1.792000] mercury_cfg_read(900+18) -> 0x0
[    1.792000] mercury_cfg_write(900+18) <- 0xffffffff (c)
[    1.800000] mercury_cfg_read(900+18) -> 0x0
[    1.800000] mercury_cfg_write(900+18) <- 0x0 (c)
[    1.808000] mercury_cfg_write(900+ 4) <- 0x146 (c)
[    1.808000] mercury_cfg_read(900+ 4) -> 0x146
[    1.816000] mercury_cfg_write(900+ 4) <- 0x144 (c)
[    1.816000] mercury_cfg_read(900+1c) -> 0x0
[    1.820000] mercury_cfg_write(900+1c) <- 0xffffffff (c)
[    1.828000] mercury_cfg_read(900+1c) -> 0x0
[    1.828000] mercury_cfg_write(900+1c) <- 0x0 (c)
[    1.836000] mercury_cfg_write(900+ 4) <- 0x146 (c)
[    1.836000] mercury_cfg_read(900+ 4) -> 0x146
[    1.844000] mercury_cfg_write(900+ 4) <- 0x144 (c)
[    1.844000] mercury_cfg_read(900+20) -> 0x0
[    1.852000] mercury_cfg_write(900+20) <- 0xffffffff (c)
[    1.852000] mercury_cfg_read(900+20) -> 0x0
[    1.860000] mercury_cfg_write(900+20) <- 0x0 (c)
[    1.860000] mercury_cfg_write(900+ 4) <- 0x146 (c)
[    1.864000] mercury_cfg_read(900+ 4) -> 0x146
[    1.864000] mercury_cfg_write(900+ 4) <- 0x144 (c)
[    1.876000] mercury_cfg_read(900+24) -> 0x0
[    1.876000] mercury_cfg_write(900+24) <- 0xffffffff (c)
[    1.888000] mercury_cfg_read(900+24) -> 0x0
[    1.888000] mercury_cfg_write(900+24) <- 0x0 (c)
[    1.888000] mercury_cfg_write(900+ 4) <- 0x146 (c)
[    1.896000] mercury_cfg_read(900+ 4) -> 0x146
[    1.896000] mercury_cfg_write(900+ 4) <- 0x144 (c)
[    1.908000] mercury_cfg_read(900+30) -> 0x0
[    1.908000] mercury_cfg_write(900+30) <- 0xfffff800 (c)
[    1.916000] mercury_cfg_read(900+30) -> 0x0
[    1.916000] mercury_cfg_write(900+30) <- 0x0 (c)
[    1.924000] mercury_cfg_write(900+ 4) <- 0x146 (c)
[    1.924000] mercury_cfg_read(900+2c) -> 0x1033
[    1.936000] mercury_cfg_read(900+2e) -> 0x35
[    1.936000] mercury_cfg_read(900+ 6) -> 0x210
[    1.936000] mercury_cfg_read(900+34) -> 0x40
[    1.944000] mercury_cfg_read(900+40) -> 0x1
[    1.944000] mercury_cfg_read(900+41) -> 0x0
[    1.956000] mercury_cfg_read(900+ 6) -> 0x210
[    1.956000] mercury_cfg_read(900+34) -> 0x40
[    1.964000] mercury_cfg_read(900+40) -> 0x1
[    1.968000] mercury_cfg_read(900+41) -> 0x0
[    1.968000] mercury_cfg_read(900+ 6) -> 0x210
[    1.976000] mercury_cfg_read(900+34) -> 0x40
[    1.976000] mercury_cfg_read(900+40) -> 0x1
[    1.988000] mercury_cfg_read(900+42) -> 0x7e02
[    1.988000] mercury_cfg_read(900+44) -> 0x0
[    1.996000] mercury_cfg_write(900+44) <- 0x8000 (c)
[    1.996000] mercury_cfg_read(900+ 6) -> 0x210
[    2.008000] mercury_cfg_read(900+34) -> 0x40
[    2.008000] mercury_cfg_read(900+40) -> 0x1
[    2.008000] mercury_cfg_read(900+41) -> 0x0
[    2.016000] mercury_cfg_read(a00+ 0) -> 0xe01033
[    2.016000] mercury_cfg_read(a00+ e) -> 0x0
[    2.024000] mercury_cfg_read(a00+ 6) -> 0x210
[    2.024000] mercury_cfg_read(a00+34) -> 0x40
[    2.036000] mercury_cfg_read(a00+40) -> 0x1
[    2.036000] mercury_cfg_read(a00+41) -> 0x0
[    2.044000] mercury_cfg_read(a00+ 8) -> 0xc032002
[    2.044000] mercury_cfg_read(a00+ 6) -> 0x210
[    2.044000] mercury_cfg_read(a00+34) -> 0x40
[    2.052000] mercury_cfg_read(a00+40) -> 0x1
[    2.052000] mercury_cfg_read(a00+41) -> 0x0
[    2.060000] mercury_cfg_read(a00+3d) -> 0x3
[    2.060000] mercury_cfg_read(a00+3c) -> 0x0
[    2.072000] mercury_cfg_read(a00+ 4) -> 0x146
[    2.072000] mercury_cfg_write(a00+ 4) <- 0x144 (c)
[    2.072000] mercury_cfg_read(a00+10) -> 0x80000000
[    2.080000] mercury_cfg_write(a00+10) <- 0xffffffff (c)
[    2.092000] mercury_cfg_read(a00+10) -> 0xffffff00
[    2.092000] mercury_cfg_write(a00+10) <- 0x80000000 (c)
[    2.100000] mercury_cfg_write(a00+ 4) <- 0x146 (c)
[    2.100000] mercury_cfg_read(a00+ 4) -> 0x146
[    2.104000] mercury_cfg_write(a00+ 4) <- 0x144 (c)
[    2.108000] mercury_cfg_read(a00+14) -> 0x0
[    2.108000] mercury_cfg_write(a00+14) <- 0xffffffff (c)
[    2.120000] mercury_cfg_read(a00+14) -> 0x0
[    2.120000] mercury_cfg_write(a00+14) <- 0x0 (c)
[    2.128000] mercury_cfg_write(a00+ 4) <- 0x146 (c)
[    2.128000] mercury_cfg_read(a00+ 4) -> 0x146
[    2.140000] mercury_cfg_write(a00+ 4) <- 0x144 (c)
[    2.140000] mercury_cfg_read(a00+18) -> 0x0
[    2.152000] mercury_cfg_write(a00+18) <- 0xffffffff (c)
[    2.152000] mercury_cfg_read(a00+18) -> 0x0
[    2.160000] mercury_cfg_write(a00+18) <- 0x0 (c)
[    2.160000] mercury_cfg_write(a00+ 4) <- 0x146 (c)
[    2.168000] mercury_cfg_read(a00+ 4) -> 0x146
[    2.168000] mercury_cfg_write(a00+ 4) <- 0x144 (c)
[    2.168000] mercury_cfg_read(a00+1c) -> 0x0
[    2.176000] mercury_cfg_write(a00+1c) <- 0xffffffff (c)
[    2.176000] mercury_cfg_read(a00+1c) -> 0x0
[    2.188000] mercury_cfg_write(a00+1c) <- 0x0 (c)
[    2.188000] mercury_cfg_write(a00+ 4) <- 0x146 (c)
[    2.196000] mercury_cfg_read(a00+ 4) -> 0x146
[    2.196000] mercury_cfg_write(a00+ 4) <- 0x144 (c)
[    2.208000] mercury_cfg_read(a00+20) -> 0x0
[    2.208000] mercury_cfg_write(a00+20) <- 0xffffffff (c)
[    2.216000] mercury_cfg_read(a00+20) -> 0x0
[    2.220000] mercury_cfg_write(a00+20) <- 0x0 (c)
[    2.228000] mercury_cfg_write(a00+ 4) <- 0x146 (c)
[    2.228000] mercury_cfg_read(a00+ 4) -> 0x146
[    2.236000] mercury_cfg_write(a00+ 4) <- 0x144 (c)
[    2.236000] mercury_cfg_read(a00+24) -> 0x0
[    2.236000] mercury_cfg_write(a00+24) <- 0xffffffff (c)
[    2.244000] mercury_cfg_read(a00+24) -> 0x0
[    2.244000] mercury_cfg_write(a00+24) <- 0x0 (c)
[    2.252000] mercury_cfg_write(a00+ 4) <- 0x146 (c)
[    2.256000] mercury_cfg_read(a00+ 4) -> 0x146
[    2.260000] mercury_cfg_write(a00+ 4) <- 0x144 (c)
[    2.260000] mercury_cfg_read(a00+30) -> 0x0
[    2.268000] mercury_cfg_write(a00+30) <- 0xfffff800 (c)
[    2.268000] mercury_cfg_read(a00+30) -> 0x0
[    2.276000] mercury_cfg_write(a00+30) <- 0x0 (c)
[    2.276000] mercury_cfg_write(a00+ 4) <- 0x146 (c)
[    2.284000] mercury_cfg_read(a00+2c) -> 0x1033
[    2.284000] mercury_cfg_read(a00+2e) -> 0xe0
[    2.284000] mercury_cfg_read(a00+ 6) -> 0x210
[    2.288000] mercury_cfg_read(a00+34) -> 0x40
[    2.292000] mercury_cfg_read(a00+40) -> 0x1
[    2.296000] mercury_cfg_read(a00+41) -> 0x0
[    2.296000] mercury_cfg_read(a00+ 6) -> 0x210
[    2.304000] mercury_cfg_read(a00+34) -> 0x40
[    2.304000] mercury_cfg_read(a00+40) -> 0x1
[    2.312000] mercury_cfg_read(a00+41) -> 0x0
[    2.312000] mercury_cfg_read(a00+ 6) -> 0x210
[    2.312000] mercury_cfg_read(a00+34) -> 0x40
[    2.320000] mercury_cfg_read(a00+40) -> 0x1
[    2.320000] mercury_cfg_read(a00+42) -> 0x7e02
[    2.324000] mercury_cfg_read(a00+44) -> 0x0
[    2.324000] mercury_cfg_write(a00+44) <- 0x8000 (c)
[    2.332000] mercury_cfg_read(a00+ 6) -> 0x210
[    2.332000] mercury_cfg_read(a00+34) -> 0x40
[    2.332000] mercury_cfg_read(a00+40) -> 0x1
[    2.340000] mercury_cfg_read(a00+41) -> 0x0
[    2.340000] mercury_cfg_read(b00+ 0) -> 0xffffffff
[    2.348000] mercury_cfg_read(c00+ 0) -> 0xffffffff
[    2.348000] mercury_cfg_read(d00+ 0) -> 0xffffffff
[    2.356000] mercury_cfg_read(e00+ 0) -> 0xffffffff
[    2.356000] mercury_cfg_read(f00+ 0) -> 0xffffffff
[    2.360000] mercury_cfg_read(1000+ 0) -> 0x6491095
[    2.364000] mercury_cfg_read(1000+ e) -> 0x0
[    2.368000] mercury_cfg_read(1000+ 6) -> 0x290
[    2.368000] mercury_cfg_read(1000+34) -> 0x60
[    2.376000] mercury_cfg_read(1000+60) -> 0x1
[    2.376000] mercury_cfg_read(1000+61) -> 0x0
[    2.376000] mercury_cfg_read(1000+ 8) -> 0x1018f02
[    2.384000] mercury_cfg_read(1000+ 6) -> 0x290
[    2.384000] mercury_cfg_read(1000+34) -> 0x60
[    2.392000] mercury_cfg_read(1000+60) -> 0x1
[    2.392000] mercury_cfg_read(1000+61) -> 0x0
[    2.396000] mercury_cfg_read(1000+3d) -> 0x1
[    2.396000] mercury_cfg_read(1000+3c) -> 0xe
[    2.404000] mercury_cfg_read(1000+ 4) -> 0x145
[    2.404000] mercury_cfg_write(1000+ 4) <- 0x144 (c)
[    2.412000] mercury_cfg_read(1000+10) -> 0xd19
[    2.412000] mercury_cfg_write(1000+10) <- 0xffffffff (c)
[    2.420000] mercury_cfg_read(1000+10) -> 0xfffffff9
[    2.420000] mercury_cfg_write(1000+10) <- 0xd19 (c)
[    2.420000] mercury_cfg_write(1000+ 4) <- 0x145 (c)
[    2.428000] mercury_cfg_read(1000+ 4) -> 0x145
[    2.428000] mercury_cfg_write(1000+ 4) <- 0x144 (c)
[    2.432000] mercury_cfg_read(1000+14) -> 0xd25
[    2.432000] mercury_cfg_write(1000+14) <- 0xffffffff (c)
[    2.440000] mercury_cfg_read(1000+14) -> 0xfffffffd
[    2.440000] mercury_cfg_write(1000+14) <- 0xd25 (c)
[    2.448000] mercury_cfg_write(1000+ 4) <- 0x145 (c)
[    2.448000] mercury_cfg_read(1000+ 4) -> 0x145
[    2.456000] mercury_cfg_write(1000+ 4) <- 0x144 (c)
[    2.456000] mercury_cfg_read(1000+18) -> 0xd11
[    2.464000] mercury_cfg_write(1000+18) <- 0xffffffff (c)
[    2.464000] mercury_cfg_read(1000+18) -> 0xfffffff9
[    2.468000] mercury_cfg_write(1000+18) <- 0xd11 (c)
[    2.468000] mercury_cfg_write(1000+ 4) <- 0x145 (c)
[    2.476000] mercury_cfg_read(1000+ 4) -> 0x145
[    2.476000] mercury_cfg_write(1000+ 4) <- 0x144 (c)
[    2.484000] mercury_cfg_read(1000+1c) -> 0xd21
[    2.484000] mercury_cfg_write(1000+1c) <- 0xffffffff (c)
[    2.492000] mercury_cfg_read(1000+1c) -> 0xfffffffd
[    2.492000] mercury_cfg_write(1000+1c) <- 0xd21 (c)
[    2.500000] mercury_cfg_write(1000+ 4) <- 0x145 (c)
[    2.500000] mercury_cfg_read(1000+ 4) -> 0x145
[    2.504000] mercury_cfg_write(1000+ 4) <- 0x144 (c)
[    2.504000] mercury_cfg_read(1000+20) -> 0xd01
[    2.512000] mercury_cfg_write(1000+20) <- 0xffffffff (c)
[    2.512000] mercury_cfg_read(1000+20) -> 0xfffffff1
[    2.520000] mercury_cfg_write(1000+20) <- 0xd01 (c)
[    2.520000] mercury_cfg_write(1000+ 4) <- 0x145 (c)
[    2.528000] mercury_cfg_read(1000+ 4) -> 0x145
[    2.528000] mercury_cfg_write(1000+ 4) <- 0x144 (c)
[    2.536000] mercury_cfg_read(1000+24) -> 0x0
[    2.536000] mercury_cfg_write(1000+24) <- 0xffffffff (c)
[    2.540000] mercury_cfg_read(1000+24) -> 0x0
[    2.540000] mercury_cfg_write(1000+24) <- 0x0 (c)
[    2.548000] mercury_cfg_write(1000+ 4) <- 0x145 (c)
[    2.548000] mercury_cfg_read(1000+ 4) -> 0x145
[    2.548000] mercury_cfg_write(1000+ 4) <- 0x144 (c)
[    2.556000] mercury_cfg_read(1000+30) -> 0x0
[    2.556000] mercury_cfg_write(1000+30) <- 0xfffff800 (c)
[    2.564000] mercury_cfg_read(1000+30) -> 0x0
[    2.564000] mercury_cfg_write(1000+30) <- 0x0 (c)
[    2.572000] mercury_cfg_write(1000+ 4) <- 0x145 (c)
[    2.572000] mercury_cfg_read(1000+2c) -> 0x1095
[    2.576000] mercury_cfg_read(1000+2e) -> 0x649
[    2.576000] mercury_cfg_read(1000+ 9) -> 0x8f
[    2.584000] mercury_cfg_read(1000+ 6) -> 0x290
[    2.584000] mercury_cfg_read(1000+34) -> 0x60
[    2.592000] mercury_cfg_read(1000+60) -> 0x1
[    2.592000] mercury_cfg_read(1000+61) -> 0x0
[    2.592000] mercury_cfg_read(1000+ 6) -> 0x290
[    2.600000] mercury_cfg_read(1000+34) -> 0x60
[    2.600000] mercury_cfg_read(1000+60) -> 0x1
[    2.608000] mercury_cfg_read(1000+61) -> 0x0
[    2.608000] mercury_cfg_read(1000+ 6) -> 0x290
[    2.612000] mercury_cfg_read(1000+34) -> 0x60
[    2.612000] mercury_cfg_read(1000+60) -> 0x1
[    2.620000] mercury_cfg_read(1000+62) -> 0x622
[    2.620000] mercury_cfg_read(1000+ 6) -> 0x290
[    2.620000] mercury_cfg_read(1000+34) -> 0x60
[    2.628000] mercury_cfg_read(1000+60) -> 0x1
[    2.628000] mercury_cfg_read(1000+61) -> 0x0
[    2.636000] mercury_cfg_read(1800+ 0) -> 0xffffffff
[    2.636000] mercury_cfg_read(2000+ 0) -> 0xffffffff
[    2.644000] mercury_cfg_read(2800+ 0) -> 0xffffffff
[    2.644000] mercury_cfg_read(3000+ 0) -> 0xffffffff
[    2.648000] mercury_cfg_read(3800+ 0) -> 0xffffffff
[    2.648000] mercury_cfg_read(4000+ 0) -> 0xffffffff
[    2.656000] mercury_cfg_read(4800+ 0) -> 0xffffffff
[    2.656000] mercury_cfg_read(5000+ 0) -> 0xffffffff
[    2.664000] mercury_cfg_read(5800+ 0) -> 0xffffffff
[    2.664000] mercury_cfg_read(6000+ 0) -> 0xffffffff
[    2.672000] mercury_cfg_read(6800+ 0) -> 0xffffffff
[    2.672000] mercury_cfg_read(7000+ 0) -> 0xffffffff
[    2.676000] mercury_cfg_read(7800+ 0) -> 0xffffffff
[    2.680000] mercury_cfg_read(8000+ 0) -> 0xffffffff
[    2.684000] mercury_cfg_read(8800+ 0) -> 0xffffffff
[    2.684000] mercury_cfg_read(9000+ 0) -> 0xffffffff
[    2.692000] mercury_cfg_read(9800+ 0) -> 0xffffffff
[    2.692000] mercury_cfg_read(a000+ 0) -> 0xffffffff
[    2.700000] mercury_cfg_read(a800+ 0) -> 0xffffffff
[    2.700000] mercury_cfg_read(b000+ 0) -> 0xffffffff
[    2.708000] mercury_cfg_read(b800+ 0) -> 0xffffffff
[    2.708000] mercury_cfg_read(c000+ 0) -> 0xffffffff
[    2.712000] mercury_cfg_read(c800+ 0) -> 0xffffffff
[    2.712000] mercury_cfg_read(d000+ 0) -> 0xffffffff
[    2.720000] mercury_cfg_read(d800+ 0) -> 0xffffffff
[    2.720000] mercury_cfg_read(e000+ 0) -> 0xffffffff
[    2.728000] mercury_cfg_read(e800+ 0) -> 0xffffffff
[    2.728000] mercury_cfg_read(f000+ 0) -> 0xffffffff
[    2.736000] mercury_cfg_read(f800+ 0) -> 0xffffffff
[    2.736000] lba_fixup_bus(0x000000007f0cac00) bus 0 platform_data 0x000000007f007c00
[    2.744000] lba_fixup_bus() PCI00 Ports [0/ffff]/100
[    2.744000] lba_fixup_bus() PCI00 LMMIO [ffffffff80000000/ffffffff8fffffff]/200
[    2.752000] lba_fixup_bus() 0000:00:01.0
[    2.756000] lba_fixup_bus() MMIO [80002000/80002fff] -> [ffffffff80002000/ffffffff80002fff]
[    2.756000] mercury_cfg_read(800+3d) -> 0x1
[    2.764000] lba_fixup_bus() 0000:00:01.1
[    2.764000] lba_fixup_bus() MMIO [80001000/80001fff] -> [ffffffff80001000/ffffffff80001fff]
[    2.772000] mercury_cfg_read(900+3d) -> 0x2
[    2.780000] lba_fixup_bus() 0000:00:01.2
[    2.780000] lba_fixup_bus() MMIO [80000000/800000ff] -> [ffffffff80000000/ffffffff800000ff]
[    2.784000] mercury_cfg_read(a00+3d) -> 0x3
[    2.784000] lba_fixup_bus() 0000:00:02.0
[    2.792000] lba_fixup_bus() I/O Ports [d18/d1f] -> [d18/d1f]
[    2.792000] lba_fixup_bus() I/O Ports [d24/d27] -> [d24/d27]
[    2.800000] lba_fixup_bus() I/O Ports [d10/d17] -> [d10/d17]
[    2.800000] lba_fixup_bus() I/O Ports [d20/d23] -> [d20/d23]
[    2.808000] lba_fixup_bus() I/O Ports [d00/d0f] -> [d00/d0f]
[    2.808000] mercury_cfg_read(1000+3d) -> 0x1
[    2.816000] LBA pci_bus_size_bridges()
[    2.816000] LBA pci_bus_assign_resources()
[    2.820000] 
[    2.820000] LBA PIOP resource tree
[    2.824000] 
[    2.824000] LBA LMMIO resource tree
[    2.852000] Mercury version TR3.2 (0x32) found at 0xfffffffffed22000
[    2.908000] mercury_cfg_read(0+ 0) -> 0xffffffff
[    2.908000] mercury_cfg_read(800+ 0) -> 0x211000
[    2.908000] mercury_cfg_read(800+ e) -> 0x80
[    2.908000] mercury_cfg_read(800+ 6) -> 0x230
[    2.908000] mercury_cfg_read(800+34) -> 0x40
[    2.916000] mercury_cfg_read(800+40) -> 0x1
[    2.916000] mercury_cfg_read(800+41) -> 0x0
[    2.924000] mercury_cfg_read(800+ 8) -> 0x1000001
[    2.924000] mercury_cfg_read(800+ 6) -> 0x230
[    2.928000] mercury_cfg_read(800+34) -> 0x40
[    2.928000] mercury_cfg_read(800+40) -> 0x1
[    2.928000] mercury_cfg_read(800+41) -> 0x0
[    2.936000] mercury_cfg_read(800+3d) -> 0x1
[    2.936000] mercury_cfg_read(800+3c) -> 0x0
[    2.944000] mercury_cfg_read(800+ 4) -> 0x147
[    2.944000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    2.952000] mercury_cfg_read(800+10) -> 0x2101
[    2.952000] mercury_cfg_write(800+10) <- 0xffffffff (c)
[    2.960000] mercury_cfg_read(800+10) -> 0xffffff01
[    2.960000] mercury_cfg_write(800+10) <- 0x2101 (c)
[    2.964000] mercury_cfg_write(800+ 4) <- 0x147 (c)
[    2.968000] mercury_cfg_read(800+ 4) -> 0x147
[    2.968000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    2.972000] mercury_cfg_read(800+14) -> 0x90015004
[    2.972000] mercury_cfg_write(800+14) <- 0xffffffff (c)
[    2.980000] mercury_cfg_read(800+14) -> 0xfffffc04
[    2.980000] mercury_cfg_write(800+14) <- 0x90015004 (c)
[    2.988000] mercury_cfg_write(800+ 4) <- 0x147 (c)
[    2.988000] mercury_cfg_read(800+18) -> 0x0
[    2.996000] mercury_cfg_write(800+18) <- 0xffffffff (c)
[    2.996000] mercury_cfg_read(800+18) -> 0xffffffff
[    3.000000] mercury_cfg_write(800+18) <- 0x0 (c)
[    3.000000] mercury_cfg_read(800+ 4) -> 0x147
[    3.008000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    3.008000] mercury_cfg_read(800+1c) -> 0x90012004
[    3.020000] mercury_cfg_write(800+1c) <- 0xffffffff (c)
[    3.020000] mercury_cfg_read(800+1c) -> 0xffffe004
[    3.028000] mercury_cfg_write(800+1c) <- 0x90012004 (c)
[    3.032000] mercury_cfg_write(800+ 4) <- 0x147 (c)
[    3.040000] mercury_cfg_read(800+20) -> 0x0
[    3.040000] mercury_cfg_write(800+20) <- 0xffffffff (c)
[    3.048000] mercury_cfg_read(800+20) -> 0xffffffff
[    3.048000] mercury_cfg_write(800+20) <- 0x0 (c)
[    3.056000] mercury_cfg_read(800+ 4) -> 0x147
[    3.056000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    3.060000] mercury_cfg_read(800+24) -> 0x0
[    3.060000] mercury_cfg_write(800+24) <- 0xffffffff (c)
[    3.068000] mercury_cfg_read(800+24) -> 0x0
[    3.068000] mercury_cfg_write(800+24) <- 0x0 (c)
[    3.076000] mercury_cfg_write(800+ 4) <- 0x147 (c)
[    3.076000] mercury_cfg_read(800+ 4) -> 0x147
[    3.076000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    3.084000] mercury_cfg_read(800+30) -> 0x0
[    3.084000] mercury_cfg_write(800+30) <- 0xfffff800 (c)
[    3.092000] mercury_cfg_read(800+30) -> 0x0
[    3.092000] mercury_cfg_write(800+30) <- 0x0 (c)
[    3.096000] mercury_cfg_write(800+ 4) <- 0x147 (c)
[    3.096000] mercury_cfg_read(800+2c) -> 0x0
[    3.104000] mercury_cfg_read(800+2e) -> 0x0
[    3.104000] mercury_cfg_read(800+ 6) -> 0x230
[    3.112000] mercury_cfg_read(800+34) -> 0x40
[    3.112000] mercury_cfg_read(800+40) -> 0x1
[    3.112000] mercury_cfg_read(800+41) -> 0x0
[    3.120000] mercury_cfg_read(800+ 6) -> 0x230
[    3.120000] mercury_cfg_read(800+34) -> 0x40
[    3.124000] mercury_cfg_read(800+40) -> 0x1
[    3.128000] mercury_cfg_read(800+41) -> 0x0
[    3.132000] mercury_cfg_read(800+ 6) -> 0x230
[    3.132000] mercury_cfg_read(800+34) -> 0x40
[    3.132000] mercury_cfg_read(800+40) -> 0x1
[    3.140000] mercury_cfg_read(800+42) -> 0x602
[    3.140000] mercury_cfg_read(800+ 6) -> 0x230
[    3.148000] mercury_cfg_read(800+34) -> 0x40
[    3.148000] mercury_cfg_read(800+40) -> 0x1
[    3.156000] mercury_cfg_read(800+41) -> 0x0
[    3.156000] mercury_cfg_read(900+ 0) -> 0x211000
[    3.164000] mercury_cfg_read(900+ e) -> 0x80
[    3.164000] mercury_cfg_read(900+ 6) -> 0x230
[    3.164000] mercury_cfg_read(900+34) -> 0x40
[    3.168000] mercury_cfg_read(900+40) -> 0x1
[    3.168000] mercury_cfg_read(900+41) -> 0x0
[    3.176000] mercury_cfg_read(900+ 8) -> 0x1000001
[    3.176000] mercury_cfg_read(900+ 6) -> 0x230
[    3.184000] mercury_cfg_read(900+34) -> 0x40
[    3.184000] mercury_cfg_read(900+40) -> 0x1
[    3.184000] mercury_cfg_read(900+41) -> 0x0
[    3.192000] mercury_cfg_read(900+3d) -> 0x2
[    3.192000] mercury_cfg_read(900+3c) -> 0x0
[    3.196000] mercury_cfg_read(900+ 4) -> 0x147
[    3.200000] mercury_cfg_write(900+ 4) <- 0x144 (c)
[    3.204000] mercury_cfg_read(900+10) -> 0x2001
[    3.204000] mercury_cfg_write(900+10) <- 0xffffffff (c)
[    3.212000] mercury_cfg_read(900+10) -> 0xffffff01
[    3.212000] mercury_cfg_write(900+10) <- 0x2001 (c)
[    3.220000] mercury_cfg_write(900+ 4) <- 0x147 (c)
[    3.220000] mercury_cfg_read(900+ 4) -> 0x147
[    3.228000] mercury_cfg_write(900+ 4) <- 0x144 (c)
[    3.228000] mercury_cfg_read(900+14) -> 0x90014004
[    3.232000] mercury_cfg_write(900+14) <- 0xffffffff (c)
[    3.232000] mercury_cfg_read(900+14) -> 0xfffffc04
[    3.240000] mercury_cfg_write(900+14) <- 0x90014004 (c)
[    3.240000] mercury_cfg_write(900+ 4) <- 0x147 (c)
[    3.248000] mercury_cfg_read(900+18) -> 0x0
[    3.248000] mercury_cfg_write(900+18) <- 0xffffffff (c)
[    3.256000] mercury_cfg_read(900+18) -> 0xffffffff
[    3.256000] mercury_cfg_write(900+18) <- 0x0 (c)
[    3.256000] mercury_cfg_read(900+ 4) -> 0x147
[    3.264000] mercury_cfg_write(900+ 4) <- 0x144 (c)
[    3.264000] mercury_cfg_read(900+1c) -> 0x90010004
[    3.268000] mercury_cfg_write(900+1c) <- 0xffffffff (c)
[    3.272000] mercury_cfg_read(900+1c) -> 0xffffe004
[    3.276000] mercury_cfg_write(900+1c) <- 0x90010004 (c)
[    3.276000] mercury_cfg_write(900+ 4) <- 0x147 (c)
[    3.284000] mercury_cfg_read(900+20) -> 0x0
[    3.284000] mercury_cfg_write(900+20) <- 0xffffffff (c)
[    3.292000] mercury_cfg_read(900+20) -> 0xffffffff
[    3.292000] mercury_cfg_write(900+20) <- 0x0 (c)
[    3.300000] mercury_cfg_read(900+ 4) -> 0x147
[    3.300000] mercury_cfg_write(900+ 4) <- 0x144 (c)
[    3.308000] mercury_cfg_read(900+24) -> 0x0
[    3.308000] mercury_cfg_write(900+24) <- 0xffffffff (c)
[    3.312000] mercury_cfg_read(900+24) -> 0x0
[    3.312000] mercury_cfg_write(900+24) <- 0x0 (c)
[    3.320000] mercury_cfg_write(900+ 4) <- 0x147 (c)
[    3.320000] mercury_cfg_read(900+ 4) -> 0x147
[    3.328000] mercury_cfg_write(900+ 4) <- 0x144 (c)
[    3.328000] mercury_cfg_read(900+30) -> 0x0
[    3.328000] mercury_cfg_write(900+30) <- 0xfffff800 (c)
[    3.336000] mercury_cfg_read(900+30) -> 0x0
[    3.336000] mercury_cfg_write(900+30) <- 0x0 (c)
[    3.344000] mercury_cfg_write(900+ 4) <- 0x147 (c)
[    3.344000] mercury_cfg_read(900+2c) -> 0x0
[    3.348000] mercury_cfg_read(900+2e) -> 0x0
[    3.348000] mercury_cfg_read(900+ 6) -> 0x230
[    3.356000] mercury_cfg_read(900+34) -> 0x40
[    3.356000] mercury_cfg_read(900+40) -> 0x1
[    3.364000] mercury_cfg_read(900+41) -> 0x0
[    3.364000] mercury_cfg_read(900+ 6) -> 0x230
[    3.364000] mercury_cfg_read(900+34) -> 0x40
[    3.372000] mercury_cfg_read(900+40) -> 0x1
[    3.372000] mercury_cfg_read(900+41) -> 0x0
[    3.376000] mercury_cfg_read(900+ 6) -> 0x230
[    3.380000] mercury_cfg_read(900+34) -> 0x40
[    3.384000] mercury_cfg_read(900+40) -> 0x1
[    3.384000] mercury_cfg_read(900+42) -> 0x602
[    3.384000] mercury_cfg_read(900+ 6) -> 0x230
[    3.392000] mercury_cfg_read(900+34) -> 0x40
[    3.392000] mercury_cfg_read(900+40) -> 0x1
[    3.400000] mercury_cfg_read(900+41) -> 0x0
[    3.400000] mercury_cfg_read(a00+ 0) -> 0xffffffff
[    3.408000] mercury_cfg_read(b00+ 0) -> 0xffffffff
[    3.408000] mercury_cfg_read(c00+ 0) -> 0xffffffff
[    3.412000] mercury_cfg_read(d00+ 0) -> 0xffffffff
[    3.412000] mercury_cfg_read(e00+ 0) -> 0xffffffff
[    3.420000] mercury_cfg_read(f00+ 0) -> 0xffffffff
[    3.420000] mercury_cfg_read(1000+ 0) -> 0x164514e4
[    3.428000] mercury_cfg_read(1000+ e) -> 0x0
[    3.428000] mercury_cfg_read(1000+ 6) -> 0x2b0
[    3.428000] mercury_cfg_read(1000+34) -> 0x40
[    3.436000] mercury_cfg_read(1000+40) -> 0x7
[    3.436000] mercury_cfg_read(1000+41) -> 0x48
[    3.444000] mercury_cfg_read(1000+48) -> 0x1
[    3.444000] mercury_cfg_read(1000+49) -> 0x50
[    3.448000] mercury_cfg_read(1000+50) -> 0x3
[    3.452000] mercury_cfg_read(1000+51) -> 0x58
[    3.456000] mercury_cfg_read(1000+58) -> 0x5
[    3.456000] mercury_cfg_read(1000+59) -> 0x0
[    3.456000] mercury_cfg_read(1000+ 8) -> 0x2000015
[    3.464000] mercury_cfg_read(1000+ 6) -> 0x2b0
[    3.464000] mercury_cfg_read(1000+34) -> 0x40
[    3.472000] mercury_cfg_read(1000+40) -> 0x7
[    3.472000] mercury_cfg_read(1000+44) -> 0x3fff9
[    3.480000] mercury_cfg_read(1000+3d) -> 0x1
[    3.480000] mercury_cfg_read(1000+3c) -> 0x82
[    3.484000] mercury_cfg_read(1000+ 4) -> 0x146
[    3.488000] mercury_cfg_write(1000+ 4) <- 0x144 (c)
[    3.488000] mercury_cfg_read(1000+10) -> 0x90000004
[    3.492000] mercury_cfg_write(1000+10) <- 0xffffffff (c)
[    3.500000] mercury_cfg_read(1000+10) -> 0xffff0004
[    3.500000] mercury_cfg_write(1000+10) <- 0x90000004 (c)
[    3.508000] mercury_cfg_write(1000+ 4) <- 0x146 (c)
[    3.508000] mercury_cfg_read(1000+14) -> 0x0
[    3.508000] mercury_cfg_write(1000+14) <- 0xffffffff (c)
[    3.516000] mercury_cfg_read(1000+14) -> 0xffffffff
[    3.524000] mercury_cfg_write(1000+14) <- 0x0 (c)
[    3.524000] mercury_cfg_read(1000+ 4) -> 0x146
[    3.524000] mercury_cfg_write(1000+ 4) <- 0x144 (c)
[    3.528000] mercury_cfg_read(1000+18) -> 0x0
[    3.528000] mercury_cfg_write(1000+18) <- 0xffffffff (c)
[    3.536000] mercury_cfg_read(1000+18) -> 0x0
[    3.536000] mercury_cfg_write(1000+18) <- 0x0 (c)
[    3.544000] mercury_cfg_write(1000+ 4) <- 0x146 (c)
[    3.544000] mercury_cfg_read(1000+ 4) -> 0x146
[    3.552000] mercury_cfg_write(1000+ 4) <- 0x144 (c)
[    3.552000] mercury_cfg_read(1000+1c) -> 0x0
[    3.560000] mercury_cfg_write(1000+1c) <- 0xffffffff (c)
[    3.560000] mercury_cfg_read(1000+1c) -> 0x0
[    3.564000] mercury_cfg_write(1000+1c) <- 0x0 (c)
[    3.564000] mercury_cfg_write(1000+ 4) <- 0x146 (c)
[    3.572000] mercury_cfg_read(1000+ 4) -> 0x146
[    3.572000] mercury_cfg_write(1000+ 4) <- 0x144 (c)
[    3.580000] mercury_cfg_read(1000+20) -> 0x0
[    3.580000] mercury_cfg_write(1000+20) <- 0xffffffff (c)
[    3.588000] mercury_cfg_read(1000+20) -> 0x0
[    3.588000] mercury_cfg_write(1000+20) <- 0x0 (c)
[    3.588000] mercury_cfg_write(1000+ 4) <- 0x146 (c)
[    3.596000] mercury_cfg_read(1000+ 4) -> 0x146
[    3.596000] mercury_cfg_write(1000+ 4) <- 0x144 (c)
[    3.600000] mercury_cfg_read(1000+24) -> 0x0
[    3.600000] mercury_cfg_write(1000+24) <- 0xffffffff (c)
[    3.608000] mercury_cfg_read(1000+24) -> 0x0
[    3.608000] mercury_cfg_write(1000+24) <- 0x0 (c)
[    3.616000] mercury_cfg_write(1000+ 4) <- 0x146 (c)
[    3.616000] mercury_cfg_read(1000+ 4) -> 0x146
[    3.624000] mercury_cfg_write(1000+ 4) <- 0x144 (c)
[    3.624000] mercury_cfg_read(1000+30) -> 0x0
[    3.628000] mercury_cfg_write(1000+30) <- 0xfffff800 (c)
[    3.632000] mercury_cfg_read(1000+30) -> 0x0
[    3.636000] mercury_cfg_write(1000+30) <- 0x0 (c)
[    3.636000] mercury_cfg_write(1000+ 4) <- 0x146 (c)
[    3.644000] mercury_cfg_read(1000+2c) -> 0x103c
[    3.644000] mercury_cfg_read(1000+2e) -> 0x12a4
[    3.652000] mercury_cfg_read(1000+ 6) -> 0x2b0
[    3.652000] mercury_cfg_read(1000+34) -> 0x40
[    3.652000] mercury_cfg_read(1000+40) -> 0x7
[    3.660000] mercury_cfg_read(1000+41) -> 0x48
[    3.660000] mercury_cfg_read(1000+48) -> 0x1
[    3.664000] mercury_cfg_read(1000+49) -> 0x50
[    3.664000] mercury_cfg_read(1000+50) -> 0x3
[    3.672000] mercury_cfg_read(1000+51) -> 0x58
[    3.672000] mercury_cfg_read(1000+58) -> 0x5
[    3.680000] mercury_cfg_read(1000+59) -> 0x0
[    3.680000] mercury_cfg_read(1000+ 6) -> 0x2b0
[    3.680000] mercury_cfg_read(1000+34) -> 0x40
[    3.688000] mercury_cfg_read(1000+40) -> 0x7
[    3.688000] mercury_cfg_read(1000+ 6) -> 0x2b0
[    3.696000] mercury_cfg_read(1000+34) -> 0x40
[    3.696000] mercury_cfg_read(1000+40) -> 0x7
[    3.700000] mercury_cfg_read(1000+41) -> 0x48
[    3.700000] mercury_cfg_read(1000+48) -> 0x1
[    3.700000] mercury_cfg_read(1000+4a) -> 0xc002
[    3.708000] mercury_cfg_read(1000+4c) -> 0x2100
[    3.708000] mercury_cfg_write(1000+4c) <- 0xa000 (c)
[    3.716000] mercury_cfg_read(1000+ 6) -> 0x2b0
[    3.716000] mercury_cfg_read(1000+34) -> 0x40
[    3.724000] mercury_cfg_read(1000+40) -> 0x7
[    3.724000] mercury_cfg_read(1000+41) -> 0x48
[    3.732000] mercury_cfg_read(1000+48) -> 0x1
[    3.732000] mercury_cfg_read(1000+49) -> 0x50
[    3.736000] mercury_cfg_read(1000+50) -> 0x3
[    3.736000] mercury_cfg_read(1800+ 0) -> 0xffffffff
[    3.736000] mercury_cfg_read(2000+ 0) -> 0xffffffff
[    3.744000] mercury_cfg_read(2800+ 0) -> 0xffffffff
[    3.744000] mercury_cfg_read(3000+ 0) -> 0xffffffff
[    3.752000] mercury_cfg_read(3800+ 0) -> 0xffffffff
[    3.752000] mercury_cfg_read(4000+ 0) -> 0xffffffff
[    3.760000] mercury_cfg_read(4800+ 0) -> 0xffffffff
[    3.760000] mercury_cfg_read(5000+ 0) -> 0xffffffff
[    3.768000] mercury_cfg_read(5800+ 0) -> 0xffffffff
[    3.768000] mercury_cfg_read(6000+ 0) -> 0xffffffff
[    3.772000] mercury_cfg_read(6800+ 0) -> 0xffffffff
[    3.772000] mercury_cfg_read(7000+ 0) -> 0xffffffff
[    3.780000] mercury_cfg_read(7800+ 0) -> 0xffffffff
[    3.780000] mercury_cfg_read(8000+ 0) -> 0xffffffff
[    3.788000] mercury_cfg_read(8800+ 0) -> 0xffffffff
[    3.788000] mercury_cfg_read(9000+ 0) -> 0xffffffff
[    3.796000] mercury_cfg_read(9800+ 0) -> 0xffffffff
[    3.796000] mercury_cfg_read(a000+ 0) -> 0xffffffff
[    3.804000] mercury_cfg_read(a800+ 0) -> 0xffffffff
[    3.804000] mercury_cfg_read(b000+ 0) -> 0xffffffff
[    3.808000] mercury_cfg_read(b800+ 0) -> 0xffffffff
[    3.808000] mercury_cfg_read(c000+ 0) -> 0xffffffff
[    3.816000] mercury_cfg_read(c800+ 0) -> 0xffffffff
[    3.816000] mercury_cfg_read(d000+ 0) -> 0xffffffff
[    3.824000] mercury_cfg_read(d800+ 0) -> 0xffffffff
[    3.824000] mercury_cfg_read(e000+ 0) -> 0xffffffff
[    3.832000] mercury_cfg_read(e800+ 0) -> 0xffffffff
[    3.832000] mercury_cfg_read(f000+ 0) -> 0xffffffff
[    3.840000] mercury_cfg_read(f800+ 0) -> 0xffffffff
[    3.840000] lba_fixup_bus(0x000000007f0cb400) bus 32 platform_data 0x000000007f128000
[    3.844000] lba_fixup_bus() PCI20 Ports [10000/1ffff]/100
[    3.852000] lba_fixup_bus() PCI20 LMMIO [ffffffff90000000/ffffffff9fffffff]/200
[    3.852000] lba_fixup_bus() 0000:20:01.0
[    3.860000] lba_fixup_bus() I/O Ports [2100/21ff] -> [12100/121ff]
[    3.860000] lba_fixup_bus() MMIO [90015000/900153ff] -> [ffffffff90015000/ffffffff900153ff]
[    3.868000] lba_fixup_bus() MMIO [90012000/90013fff] -> [ffffffff90012000/ffffffff90013fff]
[    3.876000] mercury_cfg_read(800+3d) -> 0x1
[    3.880000] lba_fixup_bus() 0000:20:01.1
[    3.880000] lba_fixup_bus() I/O Ports [2000/20ff] -> [12000/120ff]
[    3.888000] lba_fixup_bus() MMIO [90014000/900143ff] -> [ffffffff90014000/ffffffff900143ff]
[    3.888000] lba_fixup_bus() MMIO [90010000/90011fff] -> [ffffffff90010000/ffffffff90011fff]
[    3.896000] mercury_cfg_read(900+3d) -> 0x2
[    3.904000] lba_fixup_bus() 0000:20:02.0
[    3.904000] lba_fixup_bus() MMIO [90000000/9000ffff] -> [ffffffff90000000/ffffffff9000ffff]
[    3.912000] mercury_cfg_read(1000+3d) -> 0x1
[    3.912000] LBA pci_bus_size_bridges()
[    3.916000] LBA pci_bus_assign_resources()
[    3.916000] 
[    3.916000] LBA PIOP resource tree
[    3.924000] 
[    3.924000] LBA LMMIO resource tree
[    3.948000] Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
[    4.004000] mercury_cfg_read(0+ 0) -> 0xffffffff
[    4.004000] mercury_cfg_read(800+ 0) -> 0xffffffff
[    4.004000] mercury_cfg_read(1000+ 0) -> 0xffffffff
[    4.004000] mercury_cfg_read(1800+ 0) -> 0xffffffff
[    4.004000] mercury_cfg_read(2000+ 0) -> 0xffffffff
[    4.012000] mercury_cfg_read(2800+ 0) -> 0xffffffff
[    4.012000] mercury_cfg_read(3000+ 0) -> 0xffffffff
[    4.016000] mercury_cfg_read(3800+ 0) -> 0xffffffff
[    4.020000] mercury_cfg_read(4000+ 0) -> 0xffffffff
[    4.024000] mercury_cfg_read(4800+ 0) -> 0xffffffff
[    4.024000] mercury_cfg_read(5000+ 0) -> 0xffffffff
[    4.032000] mercury_cfg_read(5800+ 0) -> 0xffffffff
[    4.032000] mercury_cfg_read(6000+ 0) -> 0xffffffff
[    4.040000] mercury_cfg_read(6800+ 0) -> 0xffffffff
[    4.040000] mercury_cfg_read(7000+ 0) -> 0xffffffff
[    4.048000] mercury_cfg_read(7800+ 0) -> 0xffffffff
[    4.048000] mercury_cfg_read(8000+ 0) -> 0xffffffff
[    4.052000] mercury_cfg_read(8800+ 0) -> 0xffffffff
[    4.052000] mercury_cfg_read(9000+ 0) -> 0xffffffff
[    4.060000] mercury_cfg_read(9800+ 0) -> 0xffffffff
[    4.060000] mercury_cfg_read(a000+ 0) -> 0xffffffff
[    4.068000] mercury_cfg_read(a800+ 0) -> 0xffffffff
[    4.068000] mercury_cfg_read(b000+ 0) -> 0xffffffff
[    4.076000] mercury_cfg_read(b800+ 0) -> 0xffffffff
[    4.076000] mercury_cfg_read(c000+ 0) -> 0xffffffff
[    4.084000] mercury_cfg_read(c800+ 0) -> 0xffffffff
[    4.084000] mercury_cfg_read(d000+ 0) -> 0xffffffff
[    4.088000] mercury_cfg_read(d800+ 0) -> 0xffffffff
[    4.088000] mercury_cfg_read(e000+ 0) -> 0xffffffff
[    4.096000] mercury_cfg_read(e800+ 0) -> 0xffffffff
[    4.096000] mercury_cfg_read(f000+ 0) -> 0xffffffff
[    4.104000] mercury_cfg_read(f800+ 0) -> 0xffffffff
[    4.104000] lba_fixup_bus(0x000000007f0cbc00) bus 64 platform_data 0x000000007f128400
[    4.112000] lba_fixup_bus() PCI40 Ports [20000/2ffff]/100
[    4.120000] lba_fixup_bus() PCI40 LMMIO [ffffffffa0000000/ffffffffafffffff]/200
[    4.120000] LBA pci_bus_size_bridges()
[    4.124000] LBA pci_bus_assign_resources()
[    4.124000] 
[    4.124000] LBA PIOP resource tree
[    4.132000] 
[    4.132000] LBA LMMIO resource tree
[    4.156000] Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
[    4.212000] mercury_cfg_read(0+ 0) -> 0xffffffff
[    4.212000] mercury_cfg_read(800+ 0) -> 0xffffffff
[    4.212000] mercury_cfg_read(1000+ 0) -> 0xffffffff
[    4.212000] mercury_cfg_read(1800+ 0) -> 0xffffffff
[    4.212000] mercury_cfg_read(2000+ 0) -> 0xffffffff
[    4.220000] mercury_cfg_read(2800+ 0) -> 0xffffffff
[    4.220000] mercury_cfg_read(3000+ 0) -> 0xffffffff
[    4.224000] mercury_cfg_read(3800+ 0) -> 0xffffffff
[    4.224000] mercury_cfg_read(4000+ 0) -> 0xffffffff
[    4.236000] mercury_cfg_read(4800+ 0) -> 0xffffffff
[    4.236000] mercury_cfg_read(5000+ 0) -> 0xffffffff
[    4.248000] mercury_cfg_read(5800+ 0) -> 0xffffffff
[    4.248000] mercury_cfg_read(6000+ 0) -> 0xffffffff
[    4.260000] mercury_cfg_read(6800+ 0) -> 0xffffffff
[    4.260000] mercury_cfg_read(7000+ 0) -> 0xffffffff
[    4.268000] mercury_cfg_read(7800+ 0) -> 0xffffffff
[    4.268000] mercury_cfg_read(8000+ 0) -> 0xffffffff
[    4.276000] mercury_cfg_read(8800+ 0) -> 0xffffffff
[    4.276000] mercury_cfg_read(9000+ 0) -> 0xffffffff
[    4.284000] mercury_cfg_read(9800+ 0) -> 0xffffffff
[    4.288000] mercury_cfg_read(a000+ 0) -> 0xffffffff
[    4.292000] mercury_cfg_read(a800+ 0) -> 0xffffffff
[    4.292000] mercury_cfg_read(b000+ 0) -> 0xffffffff
[    4.300000] mercury_cfg_read(b800+ 0) -> 0xffffffff
[    4.300000] mercury_cfg_read(c000+ 0) -> 0xffffffff
[    4.308000] mercury_cfg_read(c800+ 0) -> 0xffffffff
[    4.308000] mercury_cfg_read(d000+ 0) -> 0xffffffff
[    4.316000] mercury_cfg_read(d800+ 0) -> 0xffffffff
[    4.316000] mercury_cfg_read(e000+ 0) -> 0xffffffff
[    4.324000] mercury_cfg_read(e800+ 0) -> 0xffffffff
[    4.324000] mercury_cfg_read(f000+ 0) -> 0xffffffff
[    4.328000] mercury_cfg_read(f800+ 0) -> 0xffffffff
[    4.328000] lba_fixup_bus(0x000000007f0cc400) bus 96 platform_data 0x000000007f128800
[    4.336000] lba_fixup_bus() PCI60 Ports [30000/3ffff]/100
[    4.344000] lba_fixup_bus() PCI60 LMMIO [ffffffffb0000000/ffffffffbfffffff]/200
[    4.344000] LBA pci_bus_size_bridges()
[    4.352000] LBA pci_bus_assign_resources()
[    4.352000] 
[    4.352000] LBA PIOP resource tree
[    4.360000] 
[    4.360000] LBA LMMIO resource tree
[    4.380000] Mercury version TR3.2 (0x32) found at 0xfffffffffed28000
[    4.436000] mercury_cfg_read(0+ 0) -> 0xffffffff
[    4.436000] mercury_cfg_read(800+ 0) -> 0xffffffff
[    4.436000] mercury_cfg_read(1000+ 0) -> 0xffffffff
[    4.436000] mercury_cfg_read(1800+ 0) -> 0xffffffff
[    4.440000] mercury_cfg_read(2000+ 0) -> 0xffffffff
[    4.444000] mercury_cfg_read(2800+ 0) -> 0xffffffff
[    4.444000] mercury_cfg_read(3000+ 0) -> 0xffffffff
[    4.452000] mercury_cfg_read(3800+ 0) -> 0xffffffff
[    4.452000] mercury_cfg_read(4000+ 0) -> 0xffffffff
[    4.460000] mercury_cfg_read(4800+ 0) -> 0xffffffff
[    4.460000] mercury_cfg_read(5000+ 0) -> 0xffffffff
[    4.468000] mercury_cfg_read(5800+ 0) -> 0xffffffff
[    4.468000] mercury_cfg_read(6000+ 0) -> 0xffffffff
[    4.476000] mercury_cfg_read(6800+ 0) -> 0xffffffff
[    4.476000] mercury_cfg_read(7000+ 0) -> 0xffffffff
[    4.480000] mercury_cfg_read(7800+ 0) -> 0xffffffff
[    4.480000] mercury_cfg_read(8000+ 0) -> 0xffffffff
[    4.488000] mercury_cfg_read(8800+ 0) -> 0xffffffff
[    4.488000] mercury_cfg_read(9000+ 0) -> 0xffffffff
[    4.496000] mercury_cfg_read(9800+ 0) -> 0xffffffff
[    4.496000] mercury_cfg_read(a000+ 0) -> 0xffffffff
[    4.504000] mercury_cfg_read(a800+ 0) -> 0xffffffff
[    4.504000] mercury_cfg_read(b000+ 0) -> 0xffffffff
[    4.512000] mercury_cfg_read(b800+ 0) -> 0xffffffff
[    4.512000] mercury_cfg_read(c000+ 0) -> 0xffffffff
[    4.516000] mercury_cfg_read(c800+ 0) -> 0xffffffff
[    4.516000] mercury_cfg_read(d000+ 0) -> 0xffffffff
[    4.524000] mercury_cfg_read(d800+ 0) -> 0xffffffff
[    4.524000] mercury_cfg_read(e000+ 0) -> 0xffffffff
[    4.532000] mercury_cfg_read(e800+ 0) -> 0xffffffff
[    4.532000] mercury_cfg_read(f000+ 0) -> 0xffffffff
[    4.540000] mercury_cfg_read(f800+ 0) -> 0xffffffff
[    4.540000] lba_fixup_bus(0x000000007f0ccc00) bus 128 platform_data 0x000000007f128c00
[    4.548000] lba_fixup_bus() PCI80 Ports [40000/4ffff]/100
[    4.552000] lba_fixup_bus() PCI80 LMMIO [ffffffffc0000000/ffffffffcfffffff]/200
[    4.552000] LBA pci_bus_size_bridges()
[    4.560000] LBA pci_bus_assign_resources()
[    4.560000] 
[    4.560000] LBA PIOP resource tree
[    4.568000] 
[    4.568000] LBA LMMIO resource tree
[    4.588000] Mercury version TR3.2 (0x32) found at 0xfffffffffed2c000
[    4.644000] mercury_cfg_read(0+ 0) -> 0xffffffff
[    4.648000] mercury_cfg_read(800+ 0) -> 0xffffffff
[    4.648000] mercury_cfg_read(1000+ 0) -> 0xffffffff
[    4.648000] mercury_cfg_read(1800+ 0) -> 0xffffffff
[    4.648000] mercury_cfg_read(2000+ 0) -> 0xffffffff
[    4.652000] mercury_cfg_read(2800+ 0) -> 0xffffffff
[    4.652000] mercury_cfg_read(3000+ 0) -> 0xffffffff
[    4.660000] mercury_cfg_read(3800+ 0) -> 0xffffffff
[    4.660000] mercury_cfg_read(4000+ 0) -> 0xffffffff
[    4.668000] mercury_cfg_read(4800+ 0) -> 0xffffffff
[    4.668000] mercury_cfg_read(5000+ 0) -> 0xffffffff
[    4.676000] mercury_cfg_read(5800+ 0) -> 0xffffffff
[    4.676000] mercury_cfg_read(6000+ 0) -> 0xffffffff
[    4.684000] mercury_cfg_read(6800+ 0) -> 0xffffffff
[    4.684000] mercury_cfg_read(7000+ 0) -> 0xffffffff
[    4.688000] mercury_cfg_read(7800+ 0) -> 0xffffffff
[    4.688000] mercury_cfg_read(8000+ 0) -> 0xffffffff
[    4.696000] mercury_cfg_read(8800+ 0) -> 0xffffffff
[    4.696000] mercury_cfg_read(9000+ 0) -> 0xffffffff
[    4.704000] mercury_cfg_read(9800+ 0) -> 0xffffffff
[    4.704000] mercury_cfg_read(a000+ 0) -> 0xffffffff
[    4.712000] mercury_cfg_read(a800+ 0) -> 0xffffffff
[    4.712000] mercury_cfg_read(b000+ 0) -> 0xffffffff
[    4.720000] mercury_cfg_read(b800+ 0) -> 0xffffffff
[    4.720000] mercury_cfg_read(c000+ 0) -> 0xffffffff
[    4.724000] mercury_cfg_read(c800+ 0) -> 0xffffffff
[    4.724000] mercury_cfg_read(d000+ 0) -> 0xffffffff
[    4.732000] mercury_cfg_read(d800+ 0) -> 0xffffffff
[    4.732000] mercury_cfg_read(e000+ 0) -> 0xffffffff
[    4.740000] mercury_cfg_read(e800+ 0) -> 0xffffffff
[    4.740000] mercury_cfg_read(f000+ 0) -> 0xffffffff
[    4.748000] mercury_cfg_read(f800+ 0) -> 0xffffffff
[    4.748000] lba_fixup_bus(0x000000007f0cd400) bus 192 platform_data 0x000000007f129000
[    4.756000] lba_fixup_bus() PCIc0 Ports [50000/5ffff]/100
[    4.760000] lba_fixup_bus() PCIc0 LMMIO [ffffffffe0000000/ffffffffefffffff]/200
[    4.760000] LBA pci_bus_size_bridges()
[    4.768000] LBA pci_bus_assign_resources()
[    4.768000] 
[    4.768000] LBA PIOP resource tree
[    4.776000] 
[    4.776000] LBA LMMIO resource tree
[    4.800000] Mercury version TR3.2 (0x32) found at 0xfffffffffed2e000
[    4.852000] mercury_cfg_read(0+ 0) -> 0xffffffff
[    4.852000] mercury_cfg_read(800+ 0) -> 0x1290103c
[    4.856000] mercury_cfg_read(800+ e) -> 0x80
[    4.856000] mercury_cfg_read(800+ 6) -> 0x290
[    4.856000] mercury_cfg_read(800+34) -> 0x48
[    4.860000] mercury_cfg_read(800+48) -> 0x1
[    4.860000] mercury_cfg_read(800+49) -> 0x0
[    4.868000] mercury_cfg_read(800+ 8) -> 0x7800001
[    4.868000] mercury_cfg_read(800+ 6) -> 0x290
[    4.876000] mercury_cfg_read(800+34) -> 0x48
[    4.876000] mercury_cfg_read(800+48) -> 0x1
[    4.876000] mercury_cfg_read(800+49) -> 0x0
[    4.884000] mercury_cfg_read(800+3d) -> 0x1
[    4.884000] mercury_cfg_read(800+3c) -> 0x0
[    4.892000] mercury_cfg_read(800+ 4) -> 0x146
[    4.892000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    4.896000] mercury_cfg_read(800+10) -> 0x0
[    4.896000] mercury_cfg_write(800+10) <- 0xffffffff (c)
[    4.904000] mercury_cfg_read(800+10) -> 0x0
[    4.904000] mercury_cfg_write(800+10) <- 0x0 (c)
[    4.904000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    4.912000] mercury_cfg_read(800+ 4) -> 0x146
[    4.912000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    4.920000] mercury_cfg_read(800+14) -> 0x0
[    4.920000] mercury_cfg_write(800+14) <- 0xffffffff (c)
[    4.928000] mercury_cfg_read(800+14) -> 0x0
[    4.928000] mercury_cfg_write(800+14) <- 0x0 (c)
[    4.932000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    4.932000] mercury_cfg_read(800+ 4) -> 0x146
[    4.940000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    4.940000] mercury_cfg_read(800+18) -> 0xf4051000
[    4.948000] mercury_cfg_write(800+18) <- 0xffffffff (c)
[    4.948000] mercury_cfg_read(800+18) -> 0xfffffff0
[    4.956000] mercury_cfg_write(800+18) <- 0xf4051000 (c)
[    4.956000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    4.964000] mercury_cfg_read(800+ 4) -> 0x146
[    4.964000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    4.968000] mercury_cfg_read(800+1c) -> 0x0
[    4.972000] mercury_cfg_write(800+1c) <- 0xffffffff (c)
[    4.976000] mercury_cfg_read(800+1c) -> 0x0
[    4.976000] mercury_cfg_write(800+1c) <- 0x0 (c)
[    4.976000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    4.984000] mercury_cfg_read(800+ 4) -> 0x146
[    4.984000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    4.992000] mercury_cfg_read(800+20) -> 0x0
[    4.992000] mercury_cfg_write(800+20) <- 0xffffffff (c)
[    5.000000] mercury_cfg_read(800+20) -> 0x0
[    5.000000] mercury_cfg_write(800+20) <- 0x0 (c)
[    5.004000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    5.008000] mercury_cfg_read(800+ 4) -> 0x146
[    5.012000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    5.012000] mercury_cfg_read(800+24) -> 0x0
[    5.020000] mercury_cfg_write(800+24) <- 0xffffffff (c)
[    5.020000] mercury_cfg_read(800+24) -> 0x0
[    5.020000] mercury_cfg_write(800+24) <- 0x0 (c)
[    5.028000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    5.028000] mercury_cfg_read(800+ 4) -> 0x146
[    5.036000] mercury_cfg_write(800+ 4) <- 0x144 (c)
[    5.036000] mercury_cfg_read(800+30) -> 0x0
[    5.040000] mercury_cfg_write(800+30) <- 0xfffff800 (c)
[    5.040000] mercury_cfg_read(800+30) -> 0x0
[    5.052000] mercury_cfg_write(800+30) <- 0x0 (c)
[    5.052000] mercury_cfg_write(800+ 4) <- 0x146 (c)
[    5.060000] mercury_cfg_read(800+2c) -> 0x103c
[    5.060000] mercury_cfg_read(800+2e) -> 0x1291
[    5.072000] mercury_cfg_read(800+ 6) -> 0x290
[    5.072000] mercury_cfg_read(800+34) -> 0x48
[    5.072000] mercury_cfg_read(800+48) -> 0x1
[    5.080000] mercury_cfg_read(800+49) -> 0x0
[    5.080000] mercury_cfg_read(800+ 6) -> 0x290
[    5.088000] mercury_cfg_read(800+34) -> 0x48
[    5.088000] mercury_cfg_read(800+48) -> 0x1
[    5.092000] mercury_cfg_read(800+49) -> 0x0
[    5.092000] mercury_cfg_read(800+ 6) -> 0x290
[    5.100000] mercury_cfg_read(800+34) -> 0x48
[    5.100000] mercury_cfg_read(800+48) -> 0x1
[    5.100000] mercury_cfg_read(800+4a) -> 0x2
[    5.108000] mercury_cfg_read(800+ 6) -> 0x290
[    5.108000] mercury_cfg_read(800+34) -> 0x48
[    5.116000] mercury_cfg_read(800+48) -> 0x1
[    5.116000] mercury_cfg_read(800+49) -> 0x0
[    5.124000] mercury_cfg_read(900+ 0) -> 0x1048103c
[    5.124000] mercury_cfg_read(900+ e) -> 0x80
[    5.124000] mercury_cfg_read(900+ 6) -> 0x290
[    5.128000] mercury_cfg_read(900+34) -> 0x48
[    5.128000] mercury_cfg_read(900+48) -> 0x1
[    5.136000] mercury_cfg_read(900+49) -> 0x0
[    5.136000] mercury_cfg_read(900+ 8) -> 0x7000203
[    5.144000] mercury_cfg_read(900+ 6) -> 0x290
[    5.144000] mercury_cfg_read(900+34) -> 0x48
[    5.152000] mercury_cfg_read(900+48) -> 0x1
[    5.152000] mercury_cfg_read(900+49) -> 0x0
[    5.152000] mercury_cfg_read(900+3d) -> 0x1
[    5.160000] mercury_cfg_read(900+3c) -> 0x0
[    5.160000] mercury_cfg_read(900+ 4) -> 0x142
[    5.164000] mercury_cfg_write(900+ 4) <- 0x140 (c)



Firmware Version  46.34

Duplex Console IO Dependent Code (IODC) revision 1

PROCESSOR PIM INFORMATION

Original Product Number:  A7136A
Current Product Number:   A7136A


-----------------  Processor 0 HPMC Information - PDC Version: 46.34  ------ 

Timestamp =   Sun Oct  31 19:28:34 GMT 2010    (20:10:10:31:19:28:34)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0xe800035c00e00000 0x000000000000c46c
       0x57000f7300e00000 0x8040004000000000
       0xf600105e00e00000 0xfffffff0f0c00000
       0x140003b200e00000 0x000000000000000b
       0x5600100b00e00000 0x0000000000000194
       0x5600106400e00000 0xfffffff0f0435110


General Registers 0 - 31
00-03  0000000000000000  000000000000cde0  000000000000c2b0  00000000005f2140
04-07  fffffffff4050000  0000000000000000  00000000005f21c0  0000000000000000
08-11  0000000000000037  0000000000000060  00000000005f2140  0000000000000000
12-15  00000000005f21c0  0000000000000037  00000000005f3508  00000000405781e0
16-19  0000000000000000  00000000406d5270  00000000406d5270  fffffffff4050005
20-23  00000000005f21c0  0000000000000003  0000000000000190  0000000000000037
24-27  00000000005f21c0  00000000005f2140  fffffffff4050000  000000000000d010
28-31  00000000406c4270  00000000005f3608  00000000005f36e8  0000000000000020

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  00000000000000c0  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000103000  ff80000000000000
16-19  0000001e8b013030  0000000000000000  000000000000c46c  000000000e601027
20-23  00000000ae07ffd0  c000000014050005  0000000008000008  8000000000000000
24-27  00000000005d7000  00000000005d7000  eff1ffddadbe93c7  0000000040000b80
28-31  0000000040000b80  eff1ffddadbe93c7  000000007f058000  eff1ffddadbe93c7

Space Registers 0 - 7
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x000000000000c470
Check Type                   = 0x20000000
Cpu State                    = 0x9e000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

Floating Point Registers 0 - 31
00-03  0014081f0000001f  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  00000000001b6000  000000007f0803d8  00000000405c97a0
28-31  0000000000000802  0000000000000000  0000000000000000  0000000000000000

PIM Revision                 = 0x0000000000000001                
CPU ID                       = 0x0000000000000014
CPU Revision                 = 0x0000000000000031
Cpu Serial Number            = 0x46100b89e43f0503
Check Summary                = 0x8040004000000000
SAL Timestamp                = 0x000000004ccdc362
System Firmware Rev.         = 0x00000ba20000121a
PDC Relocation Address       = 0xfffffff0f0c00000
Available Memory             = 0x000000027fe00000
CPU Diagnose Register 2      = 0x3112002000002008
MIB_STAT                     = 0x0040000000200000
MIB_LOG1                     = 0x0000000000555500
MIB_LOG2                     = 0x0000800000000000
MIB_ECC_DATA                 = 0x808800007fffbfd8
ICache Info                  = 0x0000000000000000
DCache Info                  = 0x0000000000000000
Sharedcache Info1            = 0x0000000000000000
Sharedcache Info2            = 0x0000000000000040
MIB_RSLOG1                   = 0x0000000000000004
MIB_RSLOG2                   = 0x0000010000000000
MIB_RQLOG                    = 0x040c1405fffe1510
MIB_REQLOGa                  = 0x8000000000000200
MIB_REQLOGb                  = 0x01000aa400000000
Reserved                     = 0x0000000000000000
Cache Repair Detail          = 0x0000000000000000

PIM Detail Text:



--gKMricLos+KVdGMg--
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hey,
 If you live in europe and are interested in a J5600 for parisc-linux
development or testing, please contact me off-list with a blurb about
what you would plan to do with it.



From - Thu Nov 08 21:06:27 2018
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On Sun, Oct 31, 2010 at 02:02:15PM -0400, John David Anglin wrote:
> On Sun, 31 Oct 2010, John David Anglin wrote:
> 
> > Attached hpmc dumps.  It appears that struct pci_hba_data *l is
> > causes the hpmc.  Maybe defining some of the DEBUG_LBA* macros
> > would provide more info.
> 
> The PCI component errors seem USB related:

Hi Dave!
I wonder if this is same problem that we saw on the Astro platforms:
Firmware left USB active while we reprogram the IOMMU.

See "sba_hw_init() in drivers/parisc/sba_iommu.c.
Off hand, I don't know what the details to fix this would be.
The outline given in the comments sound right.

cheers,
grant


> 
> dave@mx3210:~/linux/linux-2.6.36.y/drivers/parisc$ lspci -nn
> 00:01.0 USB Controller [0c03]: NEC Corporation USB [1033:0035] (rev 41)
> 00:01.1 USB Controller [0c03]: NEC Corporation USB [1033:0035] (rev 41)
> 00:01.2 USB Controller [0c03]: NEC Corporation USB 2.0 [1033:00e0] (rev 02)
> 00:02.0 IDE interface [0101]: Silicon Image, Inc. SiI 0649 Ultra ATA/100 PCI to ATA Host Controller [1095:0649] (rev 02)
> 20:01.0 SCSI storage controller [0100]: LSI Logic / Symbios Logic 53c1010 66MHz  Ultra3 SCSI Adapter [1000:0021] (rev 01)
> 20:01.1 SCSI storage controller [0100]: LSI Logic / Symbios Logic 53c1010 66MHz  Ultra3 SCSI Adapter [1000:0021] (rev 01)
> 20:02.0 Ethernet controller [0200]: Broadcom Corporation NetXtreme BCM5701 Gigabit Ethernet [14e4:1645] (rev 15)
> e0:01.0 Communication controller [0780]: Hewlett-Packard Company Auxiliary Diva Serial Port [103c:1290] (rev 01)
> e0:01.1 Serial controller [0700]: Hewlett-Packard Company Diva Serial [GSP] Multiport UART [103c:1048] (rev 03)
> e0:02.0 VGA compatible controller [0300]: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE] [1002:5159]
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:27 2018
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Subject: Re: HPMC in lba_pat_out8 on rp3440
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On Sun, Oct 31, 2010 at 03:46:26PM -0400, John David Anglin wrote:
> On Sun, 31 Oct 2010, John David Anglin wrote:
> 
> > On Sun, 31 Oct 2010, John David Anglin wrote:
> > 
> > > Attached hpmc dumps.  It appears that struct pci_hba_data *l is
> > > causes the hpmc.  Maybe defining some of the DEBUG_LBA* macros
> > > would provide more info.
> 
> Attached console output with debug macros enabled.  Also, attached
> new hpmc dump as this one seems different.

This is definitely a different problem.
This one is easy to explain.


> [    0.000000] Linux version 2.6.36+ (dave@mx3210) (gcc version 4.3.5 (GCC) ) #4 SMP Sun Oct 31 14:51:20 EDT 2010
...
> [    0.000000] Determining PDC firmware type: 64 bit PAT.
...
> [    0.256000] Found devices:
...
> [    0.324000] 13. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
...
> [    4.800000] Mercury version TR3.2 (0x32) found at 0xfffffffffed2e000
...
> [    4.852000] mercury_cfg_read(0+ 0) -> 0xffffffff
> [    4.852000] mercury_cfg_read(800+ 0) -> 0x1290103c

http://pci-ids.ucw.cz/read/PC/103c
Auxiliary Diva Serial Port

...
> [    4.892000] mercury_cfg_read(800+ 4) -> 0x146
> [    4.892000] mercury_cfg_write(800+ 4) <- 0x144 (c)
> [    4.896000] mercury_cfg_read(800+10) -> 0x0
> [    4.896000] mercury_cfg_write(800+10) <- 0xffffffff (c)
> [    4.904000] mercury_cfg_read(800+10) -> 0x0
> [    4.904000] mercury_cfg_write(800+10) <- 0x0 (c)
> [    4.904000] mercury_cfg_write(800+ 4) <- 0x146 (c)

Size BAR 0 (offset 0x10)

...
> [    5.124000] mercury_cfg_read(900+ 0) -> 0x1048103c

Diva Serial [GSP] Multiport UART
> [    5.124000] mercury_cfg_read(900+ e) -> 0x80
> [    5.124000] mercury_cfg_read(900+ 6) -> 0x290
> [    5.128000] mercury_cfg_read(900+34) -> 0x48
> [    5.128000] mercury_cfg_read(900+48) -> 0x1
> [    5.136000] mercury_cfg_read(900+49) -> 0x0
> [    5.136000] mercury_cfg_read(900+ 8) -> 0x7000203
> [    5.144000] mercury_cfg_read(900+ 6) -> 0x290
> [    5.144000] mercury_cfg_read(900+34) -> 0x48
> [    5.152000] mercury_cfg_read(900+48) -> 0x1
> [    5.152000] mercury_cfg_read(900+49) -> 0x0
> [    5.152000] mercury_cfg_read(900+3d) -> 0x1
> [    5.160000] mercury_cfg_read(900+3c) -> 0x0
> [    5.160000] mercury_cfg_read(900+ 4) -> 0x142
> [    5.164000] mercury_cfg_write(900+ 4) <- 0x140 (c)

You just shot yourself in the foot. :)
IIRC we just disabled MMIO in order to size the BAR.
So any accesses to that register will cause an HPMC.

hth,
grant
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From - Thu Nov 08 21:06:27 2018
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On Sun, Oct 31, 2010 at 01:40:20PM -0400, John David Anglin wrote:
> After the main hard drive on my rp3440, I have tried to restore
> functionality on this machine.  Lenny installed without problems.
> Then, I tried upgrading to testing.  All packages installed more
> or less ok, but vmlinux-2.6.32-5-parisc64-smp didn't boot.  Tried
> building 2.6.36 myself with a config derived from that for
> 2.6.32-5-parisc64-smp, but it dies in exactly the same way.

I've tried to look at the HPMC dumps but really need docs
to decode them. :(

Dug around a bit to see if I could match any HPMC output with
the code in lba driver.

> Attached hpmc dumps.  It appears that struct pci_hba_data *l is
> causes the hpmc.  Maybe defining some of the DEBUG_LBA* macros
> would provide more info.

Probably...But it's risky.

> The hard drive that I'm trying to boot from is in a different slot
> from the one that I was using before.  However, vmlinux-2.6.26-2-parisc64-smp
> boots ok from the drive.
> 
> Thoughts?

Maybe try the your kernels on ioz?
Try the kernels from ion or ioz on your machine?

on:~# uname -a
Linux ion 2.6.37-rc1+ #20 SMP Mon Nov 1 13:50:38 PDT 2010 parisc64 GNU/Linux

ioz:~# uname -a
Linux ioz 2.6.34-rc6 #25 Tue May 11 02:29:56 GMT 2010 parisc64 GNU/Linux

Source on ioz:/usr/src/linux-2.6 should match the kernel.
jejb is generally using ion.

Maybe try either config file to build a kernel for your machine?

More notes below.


> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

> PROCESSOR PIM INFORMATION
> 
> Original Product Number:  A7136A
> Current Product Number:   A7136A
> 
> 
> -----------------  Processor 0 HPMC Information - PDC Version: 46.34  ------ 
> 
> Timestamp =   Sun Oct  31 05:46:54 GMT 2010    (20:10:10:31:05:46:54)
> 
> HPMC Chassis Codes
> 
>        Chassis Code        Extension
>        ------------        ---------
>        0xe800035c00e00000 0x0000000040329434
>        0x57000f7300e00000 0x8040004000000000
>        0xf600105e00e00000 0xfffffff0f0c00000
>        0x140003b200e00000 0x000000000000000b
>        0x5600100b00e00000 0x0000000000000194
>        0x5600106400e00000 0xfffffff0f0435110
> 
> 
> General Registers 0 - 31
> 00-03  0000000000000000  00000000406dea70  00000000401296d0  000000007f8a0000
> 04-07  000000001c5d3000  000000000800000f  0000000000000000  000000007bf79c18
> 08-11  0000000000000000  000000007f838b90  000000001c5d9200  000000001c7aa078
> 12-15  0000000000000000  0000000000020598  000000000001e118  000000000001d18a
> 16-19  00000000fb1562d0  000000000001a000  000000000001ac94  0000000000000002
> 20-23  0000000040653038  0000000000000000  ffffffffc0000000  0000000000100000
> 24-27  000000000000000a  0000000000348002  000000007f007c00  00000000406c4270
> 28-31  000000000002c000  000000007f838f20  000000007f838f50  00000000003c8002
> 
> Control Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11  000000000000006a  0000000000000000  00000000000000c0  0000000000000001
> 12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
> 16-19  00000016e043e208  0000000000000000  0000000040329434  000000000f80109f
> 20-23  00000000a627fffb  000000004802c000  000000ff0804ff0e  4000000000000000
> 24-27  00000000005d7000  000000003f802000  eff1ffddadbe93c7  0000000040000b80
> 28-31  0000000040000b80  eff1ffddadbe93c7  000000007f838000  eff1ffddadbe93c7
> 
> Space Registers 0 - 7
> 00-03  0000000000013800  0000000000000000  0000000000000000  000000000001a800
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 
> 
> IIA Space (back entry)       = 0x0000000000000000
> IIA Offset (back entry)      = 0x0000000040329438

Is this a kernel address...can you tell me what it matches?
Can you please also look up GR1?

> Check Type                   = 0x20000000
> Cpu State                    = 0x9e000000
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x00000000
> Assists Check                = 0x0001a800
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0x0000000000000000
> System Requestor Address     = 0x0000000000000000
> 
> Floating Point Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  000000003f058340  000000003f058348  0000000000000000
> 08-11  000000000800000f  00000000406e5a70  ffffffffc0000000  00000000000001ff
> 12-15  00000000000000ff  000000007f058300  00000000406e6270  00000000406e6270
> 16-19  00000000406e8000  0000000040736000  00000000406e6270  00000000406e5270
> 20-23  000f000000000000  00000000406e5a70  0000000000000000  0000000000000000
> 24-27  0000000000000000  00000000406e6270  000000007f0583c8  00000000404aefdc
> 28-31  0000000000000003  0000000000034bc0  0000000000000003  00000000fa000000
> 
> PIM Revision                 = 0x0000000000000001                
> CPU ID                       = 0x0000000000000014
> CPU Revision                 = 0x0000000000000031
> Cpu Serial Number            = 0x46100b89e43f0503
> Check Summary                = 0x8040004000000000
> SAL Timestamp                = 0x000000004ccd02ce
> System Firmware Rev.         = 0x00000ba20000121a
> PDC Relocation Address       = 0xfffffff0f0c00000
> Available Memory             = 0x000000027fe00000
> CPU Diagnose Register 2      = 0x3112022000002008
> MIB_STAT                     = 0x0040000000200000
> MIB_LOG1                     = 0x0000000000555500
> MIB_LOG2                     = 0x0000800000000000
> MIB_ECC_DATA                 = 0x808800007fffbfd8
> ICache Info                  = 0x0000000000000000
> DCache Info                  = 0x0000000000000000
> Sharedcache Info1            = 0x0000000000000000
> Sharedcache Info2            = 0x0000000000000000
> MIB_RSLOG1                   = 0x0000080000000004
> MIB_RSLOG2                   = 0x0010010000000000
> MIB_RQLOG                    = 0x00002580001e1510
> MIB_REQLOGa                  = 0x8000040000000300
> MIB_REQLOGb                  = 0x01000aa400000000
> Reserved                     = 0x0000000000000000
> Cache Repair Detail          = 0x0000000000000000
> 
> PIM Detail Text:
> 
> -----------------  Processor 1 HPMC Information - PDC Version: 46.34  ------ 
> 
> Timestamp =   Sun Oct  31 01:32:30 GMT 2010    (20:10:10:31:01:32:30)
> 
> HPMC Chassis Codes
> 
>        Chassis Code        Extension
>        ------------        ---------
>        0xe800035c00e00000 0x00000000142e83a4
>        0x57000f7300e00000 0x8040004000000000
>        0x5600100b00e00000 0x0000000000000194
>        0x5600106400e00000 0xfffffff0f0436fc0
> 
> 
> General Registers 0 - 31
> 00-03  0000000000000000  0000000010202800  00000000102186a0  0000000000000000
> 04-07  0000000010202000  000000007f550150  0000000000000004  0000000000000000
> 08-11  000000007f0b07a8  000000007f550000  0000000000000010  0000000000000000
> 12-15  0000000000000004  0000000000000001  000000007f967130  ffffffff80000080
> 16-19  000000007f0b034a  00000000000003e8  0000000010202000  ffffffffffffffe0
> 20-23  00000000000000a3  0000000000000004  000000007f0b07a8  0000000000000001
> 24-27  0000000000000000  000000000000a300  000000007f550000  00000000142e5000
> 28-31  0000000000000010  000000007f0b08c0  000000007f0b0a10  000000001027c040
> 
> Control Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11  000000000000005c  0000000000000000  00000000000000c0  000000000000002a
> 12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
> 16-19  000000398d1a0a60  0000000000000000  00000000142e83a4  000000004bfc0028
> 20-23  00000000a627fe00  0000000000a7c054  000000ff0804ff0f  0000000000000000
> 24-27  00000000005dd000  000000003fa16000  ffffffffffffffff  0000000040000b80
> 28-31  ffffffffffffffff  ffffffffffffffff  000000007f0b0000  ffffffffffffffff
> 
> Space Registers 0 - 7
> 00-03  0000000000017000  0000000000000000  0000000000000000  0000000000017000
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 
> 
> IIA Space (back entry)       = 0x0000000000000000
> IIA Offset (back entry)      = 0x00000000142e83a8
> Check Type                   = 0x20000000
> Cpu State                    = 0x9e000000
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x00000000
> Assists Check                = 0x00017000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0x0000000000000000
> System Requestor Address     = 0x0000000000000000
> 
> Floating Point Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  00000000401f7b10  000000003f050340  0000000000000000  000000007c3f2540
> 08-11  000000004021e018  000000007ec05300  0000000000000000  0000000000000002
> 12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 24-27  0000000000000000  0000000000000000  000000007f037000  000000004053efe0
> 28-31  00000000406c7300  0000000042866a80  0000000000000000  00000000406e8300
> 
> PIM Revision                 = 0x0000000000000001                
> CPU ID                       = 0x0000000000000014
> CPU Revision                 = 0x0000000000000031
> Cpu Serial Number            = 0x46100b89e43f0503
> Check Summary                = 0x8040004000000000
> SAL Timestamp                = 0x000000004cccc72e
> System Firmware Rev.         = 0x00000ba20000121a
> PDC Relocation Address       = 0xfffffff0f0c00000
> Available Memory             = 0x000000027fe00000
> CPU Diagnose Register 2      = 0x3152020008082008
> MIB_STAT                     = 0x0040000000100000
> MIB_LOG1                     = 0x0000000000555500
> MIB_LOG2                     = 0x0000800000000000
> MIB_ECC_DATA                 = 0x808800007fffbfd8
> ICache Info                  = 0x0000000000000000
> DCache Info                  = 0x0000000000000000
> Sharedcache Info1            = 0x0000000000000000
> Sharedcache Info2            = 0x0000000000000080
> MIB_RSLOG1                   = 0x0000088000000004
> MIB_RSLOG2                   = 0x0011010000000000
> MIB_RQLOG                    = 0x046c80003ffeb930
> MIB_REQLOGa                  = 0x8000044000000200
> MIB_REQLOGb                  = 0x01000aa400000000
> Reserved                     = 0x0000000000000000
> Cache Repair Detail          = 0x0000000000000000
> 
> PIM Detail Text:
> 
> -----------------  Processor 2 HPMC Information - PDC Version: 46.34  ------ 
> 
> Timestamp =   Sun Oct  31 01:32:29 GMT 2010    (20:10:10:31:01:32:29)
> 
> HPMC Chassis Codes
> 
>        Chassis Code        Extension
>        ------------        ---------
>        0xe800035c00e00000 0x000000004031e41c
>        0x57000f7300e00000 0x8040004000000000
>        0xf600105e00e00000 0xfffffff0f0c00000
>        0x140003b200e00000 0x000000000000000b
>        0x5600100b00e00000 0x0000000000000194
>        0x5600106400e00000 0xfffffff0f0438e70
> 
> 
> General Registers 0 - 31
> 00-03  0000000000000000  00000000406e1300  0000000040128748  000000007f5fc000
> 04-07  000000001c54f000  000000000800000f  0000000000000001  0000000000000000
> 08-11  0000000000000000  000000007fa30ba0  000000001c554fe0  000000001837e0b8
> 12-15  0000000000000000  0000000000020630  000000000001e128  000000000001d18a
> 16-19  00000000fb4e52d0  000000000001a000  000000000001ac94  0000000000000002
> 20-23  00000000406586a8  0000000000000000  ffffffffc0000000  0000000000100000
> 24-27  000000000000000a  0000000000348002  000000007f085a00  00000000406c7300
> 28-31  000000000002c000  000000007fa30eb0  000000007fa30ee0  00000000003c8002
> 
> Control Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11  000000000000006a  0000000000000000  00000000000000c0  0000000000000001
> 12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
> 16-19  0000003974c44900  0000000000000000  000000004031e41c  000000000f80109f
> 20-23  00000000a627fffb  000000004802c000  000000ff0804ff0e  8000000000000000
> 24-27  00000000005dd000  000000003fa4a000  fffffeffffffffff  0000000040000b80
> 28-31  fffffffffffeffff  ffffffffffffffff  000000007fa30000  ffffffffffffffff
> 
> Space Registers 0 - 7
> 00-03  0000000000012000  0000000000000000  0000000000000000  000000000001a800
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 
> 
> IIA Space (back entry)       = 0x0000000000000000
> IIA Offset (back entry)      = 0x000000004031e420
> Check Type                   = 0x20000000
> Cpu State                    = 0x9e000000
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x00000000
> Assists Check                = 0x0001a800
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0x0000000000000000
> System Requestor Address     = 0x0000000000000000
> 
> Floating Point Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  00000000401f7b10  000000003f050340  0000000000000000  000000007c3f2540
> 08-11  000000004021e018  000000007ec05300  0000000000000000  0000000000000002
> 12-15  000000007f054010  000000007f0503e0  000000007f054000  00000000406c7300
> 16-19  0000000000000002  000000007f050400  000000007f054000  00000000406c7300
> 20-23  00000000406d7300  00000000406e7b00  000000000000012e  0000000000000000
> 24-27  0000000000000000  000000000095d6b8  000000007f037000  000000004053efe0
> 28-31  00000000406c7300  0000000042866a80  0000000000000000  00000000406e8300
> 
> PIM Revision                 = 0x0000000000000001                
> CPU ID                       = 0x0000000000000014
> CPU Revision                 = 0x0000000000000031
> Cpu Serial Number            = 0x44b44b04543f060a
> Check Summary                = 0x8040004000000000
> SAL Timestamp                = 0x000000004cccc72d
> System Firmware Rev.         = 0x00000ba20000121a
> PDC Relocation Address       = 0xfffffff0f0c00000
> Available Memory             = 0x000000027fe00000
> CPU Diagnose Register 2      = 0x31120200c1102008
> MIB_STAT                     = 0x0040000000200000
> MIB_LOG1                     = 0x0000000000500000
> MIB_LOG2                     = 0x0000800000000000
> MIB_ECC_DATA                 = 0xc55b2c1befd0fbdc
> ICache Info                  = 0x0000000000000000
> DCache Info                  = 0x0000000000000000
> Sharedcache Info1            = 0x0000000000000000
> Sharedcache Info2            = 0x0000000000000000
> MIB_RSLOG1                   = 0x0000006000000004
> MIB_RSLOG2                   = 0x0000c10000000000
> MIB_RQLOG                    = 0x00002580001e1510
> MIB_REQLOGa                  = 0x8000003000000200
> MIB_REQLOGb                  = 0x01000aa400000000
> Reserved                     = 0x0000000000000000
> Cache Repair Detail          = 0x0000000000000000
> 
> PIM Detail Text:
> 
> -----------------  Processor 3 HPMC Information - PDC Version: 46.34  ------ 
> 
> Timestamp =   Sun Oct  31 02:14:52 GMT 2010    (20:10:10:31:02:14:52)
> 
> HPMC Chassis Codes
> 
>        Chassis Code        Extension
>        ------------        ---------
>        0xe800035c00e00000 0x000000004031e41c
>        0x57000f7300e00000 0x8040004000000000
>        0xf600105e00e00000 0xfffffff0f0c00000
>        0x140003b200e00000 0x000000000000000b
>        0x5600100b00e00000 0x0000000000000194
>        0x5600106400e00000 0xfffffff0f043ad20
> 
> 
> General Registers 0 - 31
> 00-03  0000000000000000  00000000406e1300  0000000040128748  000000007f620000
> 04-07  000000001c46a000  000000000800000f  0000000000000001  0000000000000000
> 08-11  0000000000000000  000000007fa38ba0  000000001c46ffe0  000000001c5470b8
> 12-15  0000000000000000  0000000000020630  000000000001e128  000000000001d18a
> 16-19  00000000fb6da2d0  000000000001a000  000000000001ac94  0000000000000002
> 20-23  00000000406586a8  0000000000000000  ffffffffc0000000  0000000000100000
> 24-27  000000000000000a  0000000000348002  000000007f085a00  00000000406c7300
> 28-31  000000000002c000  000000007fa38eb0  000000007fa38ee0  00000000003c8002
> 
> Control Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11  000000000000006c  0000000000000000  00000000000000c0  0000000000000001
> 12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
> 16-19  000000157f727a8c  0000000000000000  000000004031e41c  000000000f80109f
> 20-23  00000000a627fffb  000000004802c000  000000ff0804ff0e  0000000000000000
> 24-27  00000000005dd000  000000003f906000  ffffffffffffffff  0000000040000b80
> 28-31  ffffffffffffffff  fffffff7ffffffff  000000007fa38000  ffffffffffffffff
> 
> IIA Space (back entry)       = 0x0000000000000000
> IIA Offset (back entry)      = 0x000000004031e420
> Check Type                   = 0x20000000
> Cpu State                    = 0x9e000000
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x00000000
> Assists Check                = 0x0001b000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0x0000000000000000
> System Requestor Address     = 0x0000000000000000
> 
> Floating Point Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  00000000401f7b10  000000003f050340  0000000000000000  000000007c3ffe40
> 08-11  000000004021e018  000000007ec05300  0000000000000000  0000000000000002
> 12-15  000000007f054010  000000007f0503e0  000000007f054000  00000000406c7300
> 16-19  0000000000000002  000000007f050400  000000007f054000  00000000406c7300
> 20-23  00000000406d7300  00000000406e7b00  000000000000012e  0000000000000000
> 24-27  0000000000000000  000000000095d6b8  000000007f037000  000000004053efe0
> 28-31  00000000406c7300  0000000042866a80  0000000000000000  00000000406e8300
> 
> PIM Revision                 = 0x0000000000000001                
> CPU ID                       = 0x0000000000000014
> CPU Revision                 = 0x0000000000000031
> Cpu Serial Number            = 0x44b44b04543f060a
> Check Summary                = 0x8040004000000000
> SAL Timestamp                = 0x000000004cccd11c
> System Firmware Rev.         = 0x00000ba20000121a
> PDC Relocation Address       = 0xfffffff0f0c00000
> Available Memory             = 0x000000027fe00000
> CPU Diagnose Register 2      = 0x31520200c9182008
> MIB_STAT                     = 0x0040000000100000
> MIB_LOG1                     = 0x0000000000500000
> MIB_LOG2                     = 0x0000800000000000
> MIB_ECC_DATA                 = 0xc55b2c1befd0fbdc
> ICache Info                  = 0x0000000000000000
> DCache Info                  = 0x0000000000000000
> Sharedcache Info1            = 0x0000000000000000
> Sharedcache Info2            = 0x0000000000000000
> MIB_RSLOG1                   = 0x000000e000000004
> MIB_RSLOG2                   = 0x0001c10000000000
> MIB_RQLOG                    = 0x00002580001e1910
> MIB_REQLOGa                  = 0x8000007000000300
> MIB_REQLOGb                  = 0x01000aa400000000
> Reserved                     = 0x0000000000000000
> Cache Repair Detail          = 0x0000000000000000
> 
> PIM Detail Text:
> 
> --------------  Memory Error Log Information  --------------
> 
>    No errors logged for this bus
> 
> ------------  I/O Module Error Log Information  ------------
> 
> IO Subsystem Log Entries
> 
> Found 2 PCI Comp errors
> Found 1 PCI Bus error
> ------------------------------------------------
> Detail display of IO subsystem log entries
> ------------------------------------------
> 
>   PCI Component Error information
> 
> PCI Component Error 1
> --- Section Header ---
> GUID
>   data1	0xe429faf6
>   data2	0x3cb7
>   data3	0x11d4
>   datat4	0xbc a7 0 80 c7 3c 88 81 
> REVISION		0x0200
> ERROR_RECOVERY_INFO		0x80
> SECTION_LENGTH		0x00000188
> VALIDATION_BITS		0x0000000000000023
> PCI_COMP_ERROR_STATUS		0x00000000005a2000
> PCI_COMP_INFO		0x0000000000004a7c 0x0035103303104100
>      Vendor Id/Device Id:                  0x35/1033

NEC USB

>      Base Class/Sub Class/Program Interface: 0x41/10/3
>      Segment/Bus/Device/Function:          0x0/0/1/0

and the HW path - builting USB (IIRC)

> PCI_COMP_MEM_NUM		0
> PCI_COMP_IO_NUM		0
> PCI_COMP_REGS_DATA_PAIR
>      Address                Data
>      0x0000000000000000     0x0000000000000000
>      0x0000000000000000     0x0000000000000000
>      0x0000000000000000     0x0000000000000000
>      0x0000000000000000     0x0000000000000000
>      0x0000000000000000     0x0000000000000000
>      0x0000000000000000     0x0000000000000000
> 
> PCI_COMP_OEM_DATA_STRUCT
> --- Section Header ---
> GUID
>   data1	0x4f7d86a
>   data2	0x598b
>   data3	0x4a0a
>   data4	0xaa 62 ff 70 73 46 67 4d 
> LENGTH		232
> PHYSICAL_LOCATION		0xffffffffffffff00
> REGISTRATION_NUMBER		0x0000000000000008
> CONFIG_REGISTERS_DATA
>         Offset    Size   Data
>           0        8     0x2210014600351033
>           8        8     0x008080200c031041
>          16        8     0x0000000080002000
>          24        8     0x0000000000000000
>          32        8     0x0000000000000000
>          40        8     0x0035103300000000
>          48        8     0x0000004000000000
>          56        8     0x2a01010000000000
>           0        0     0x0000000000000000
>           0        0     0x0000000000000000
>           0        0     0x0000000000000000
>           0        0     0x0000000000000000
> 
> End of PCI Component Error Information for Error 1
> 
> PCI Component Error 2
> --- Section Header ---
> GUID
>   data1	0xe429faf6
>   data2	0x3cb7
>   data3	0x11d4
>   datat4	0xbc a7 0 80 c7 3c 88 81 
> REVISION		0x0200
> ERROR_RECOVERY_INFO		0x80
> SECTION_LENGTH		0x00000188
> VALIDATION_BITS		0x0000000000000023
> PCI_COMP_ERROR_STATUS		0x00000000005a2000
> PCI_COMP_INFO		0x0000000000004a7c 0x0035103303104101
>      Vendor Id/Device Id:                  0x35/1033
>      Base Class/Sub Class/Program Interface: 0x41/10/3
>      Segment/Bus/Device/Function:          0x0/0/1/1
> PCI_COMP_MEM_NUM		0
> PCI_COMP_IO_NUM		0
> PCI_COMP_REGS_DATA_PAIR
>      Address                Data
>      0x0000000000000000     0x0000000000000000
>      0x0000000000000000     0x0000000000000000
>      0x0000000000000000     0x0000000000000000
>      0x0000000000000000     0x0000000000000000
>      0x0000000000000000     0x0000000000000000
>      0x0000000000000000     0x0000000000000000
> 
> PCI_COMP_OEM_DATA_STRUCT
> --- Section Header ---
> GUID
>   data1	0x4f7d86a
>   data2	0x598b
>   data3	0x4a0a
>   data4	0xaa 62 ff 70 73 46 67 4d 
> LENGTH		232
> PHYSICAL_LOCATION		0xffffffffffffff00
> REGISTRATION_NUMBER		0x0000000000000008
> CONFIG_REGISTERS_DATA
>         Offset    Size   Data
>           0        8     0x2210014600351033
>           8        8     0x000080200c031041
>          16        8     0x0000000080001000
>          24        8     0x0000000000000000
>          32        8     0x0000000000000000
>          40        8     0x0035103300000000
>          48        8     0x0000004000000000
>          56        8     0x2a01020000000000
>           0        0     0x0000000000000000
>           0        0     0x0000000000000000
>           0        0     0x0000000000000000
>           0        0     0x0000000000000000
> 
> End of PCI Component Error Information for Error 2
> 
> End of PCI Component Error Information
>   PCI Bus Error information
> 
> PCI Bus Error 1
> --- Section Header ---
> GUID
>   data1	0xe429faf4
>   data2	0x3cb7
>   data3	0x11d4
>   data4	0xbc a7 0 80 c7 3c 88 81 
> REVISION		0x0200
> ERROR_RECOVERY_INFO		0x84
> SECTION_LENGTH		0x00000108
> VALIDATION_BITS		0x000000000000074f
> PCI_BUS_ERROR_STATUS	0x00000000005a2000
> PCI_BUS_ERROR_TYPE	0x0000000000000004
> PCI_BUS_ID		0x0000000000000000
> PCI_BUS_ADDRESS		0x0000000000000d20
> PCI_BUS_DATA		0x0000000000000000
> PCI_BUS_CMD		0x0000000000000000
> PCI_BUS_REQUESTOR_ID	0x00000000fed20000
> PCI_BUS_COMPLETER_ID	0x0000000000000000
> PCI_BUS_TARGET_ID	0x0000000000000d20
> PCI_BUS_OEM_ID		0x0000000000003d90

BUS TARGET_ID would be interesting to understand if someone from HP could look this up.

FWIW, I have a similar dump from a long time ago published here:
    http://iou.parisc-linux.org/~grundler/console/pa8800-2.6.22-rc4-mm1-hpmc-01

I don't seem to have any notes relating to that dump.

> 
> Bus OEM Data
>   CEC Header:
> --- OEM Data Header ---
> 
> GUID
>   data1	0x9fe64482
>   data2	0xa02d
>   data3	0x4ef7
>   data4	0xad e6 c6 63 59 62 53 99 
> 
> --- OEM Data Body ---
> 
> CELL_NUMBER		0
> SBA_NUMBER		0
> ROPE_NUMBER		0
> --- Mercury Info ---
> ERROR_STATUS		0x000000010000021c
> ERROR_MASTER_ID_LOG	0x0000000000000000
> INBOUND_ERR_ADDRESS	0x0000000000000000
> INBOUND_ERR_ATTRIBUTE	0x0000000000000000
> COMPLETION_MESSAGE_LOG	0x0000000000000000
> OUTBOUND_ERR_ADDRESS	0x0000000000000d20
> ERROR_CONFIG		0x0000000000000030
> STATUS_INFO_CONTROL	0x0000000000000000
> FUNC_ID			0x22b00146122e103c
> CAPABILITIES_LIST	0x0f00023700200002
> AGP_COMMAND		0x0000000000000000
> PCIX_CAPABILITIES	0x0013ff0000010007
> OLR_CONTROL		0x00023f1b00032403
> CLOCK_CONTROL		0x0000000000000048
> BUS_MODE		0x9db864ef36f58460
> 
> End of PCI Bus Error Information for Error 1
> 
> End of PCI Bus Error Information
> 
> PAGE DEALLOCATION TABLE INFORMATION
> 
>    Location      Address       Type        Perm  Page  
>    ------------  ------------  ----------  ----  ---------
> 
>    No Entries in Page Deallocation Table 
> 
>    PDT Entries Used: 0
>    PDT Entries Free: 3000
>    PDT Total Size:   3000
> 
> --- vmlinux-2.6.36 ---
> 
> Processor 0 hpmc was here:
>  
> 0000000040329408 <lba_pat_out8>:
>     40329408:   d7 9f 18 52     depwi,z -1,29,14,ret0
>     4032940c:   53 5f 03 30     ldd 198(r26),r31
>     40329410:   db 39 0b f0     extrd,u r25,63,16,r25
>     40329414:   db 33 0b fe     extrd,u r25,63,2,r19
>     40329418:   0b 99 02 39     and r25,ret0,r25
>     4032941c:   f3 39 11 4a     depd,z r25,53,54,r25
>     40329420:   0a 79 0a 39     add,l r25,r19,r25
>     40329424:   0b 3f 0a 3f     add,l r31,r25,r31
>     40329428:   0f f8 12 00     stb r24,0(r31)
>     4032942c:   0f 40 10 dc     ldd 0(r26),ret0
>     40329430:   2b 6d 10 00     addil L%1a800,dp,r1
> ->  40329434:   0f 80 10 9f     ldw 0(ret0),r31
>     40329438:   50 3c 09 f0     ldd 4f8(r1),ret0
>     4032943c:   e8 40 d0 00     bve (rp)
>     40329440:   0f 9f 12 80     stw r31,0(ret0)
>     40329444:   00 00 00 00     break 0,0
> 
> lba_pat_out8 was called from outb.

This just means the bus wasn't responding. This is usually due
to IOMMU or PCI host controller have a "fatal" error.

> --- vmlinux-2.6.32-5-parisc64-smp ---
> 
> Processor 2 and 3 hpmcs were here:
> 
> 000000004031e3f0 <lba_pat_out8>:
>     4031e3f0:   d7 9f 18 52     depwi,z -1,29,14,ret0
>     4031e3f4:   53 5f 03 30     ldd 198(r26),r31
>     4031e3f8:   db 39 0b f0     extrd,u r25,63,16,r25
>     4031e3fc:   db 33 0b fe     extrd,u r25,63,2,r19
>     4031e400:   0b 99 02 39     and r25,ret0,r25
>     4031e404:   f3 39 11 4a     depd,z r25,53,54,r25
>     4031e408:   0a 79 0a 39     add,l r25,r19,r25
>     4031e40c:   0b 3f 0a 3f     add,l r31,r25,r31
>     4031e410:   0f f8 12 00     stb r24,0(r31)
>     4031e414:   0f 40 10 dc     ldd 0(r26),ret0
>     4031e418:   2b 6d 00 00     addil L%1a000,dp,r1
> ->  4031e41c:   0f 80 10 9f     ldw 0(ret0),r31
>     4031e420:   50 3c 0f 10     ldd 788(r1),ret0
>     4031e424:   e8 40 d0 00     bve (rp)
>     4031e428:   0f 9f 12 80     stw r31,0(ret0)
>     4031e42c:   00 00 00 00     break 0,0
> 
> lba_pat_out8 was again called from outb:
> 
> 00000000401286d0 <outb>:
>     401286d0:   0f c2 12 c1     std rp,-10(sp)
>     401286d4:   db 39 0f e0     extrd,s r25,63,32,r25
>     401286d8:   d3 3c 1d f0     extrw,s r25,15,16,ret0
>     401286dc:   73 c4 01 08     std,ma r4,80(sp)
>     401286e0:   db 58 0b f8     extrd,u r26,63,8,r24
>     401286e4:   2b 70 30 00     addil L%21800,dp,r1
>     401286e8:   db 9a 0f e0     extrd,s ret0,63,32,r26
>     401286ec:   50 3c 0b 50     ldd 5a8(r1),ret0
>     401286f0:   0f 80 10 9c     ldw 0(ret0),ret0
>     401286f4:   87 80 20 38     cmpib,= 0,ret0,40128718 <outb+0x48>
>     401286f8:   2b 68 00 00     addil L%10000,dp,r1
>     401286fc:   bf 40 20 2a     cmpb,*<>,n r0,r26,40128718 <outb+0x48>
>     40128700:   08 18 02 5a     copy r24,r26
>     40128704:   37 dd 3f a1     ldo -30(sp),ret1
>     40128708:   e8 fc af 14     b,l 40321e98 <eisa_out8>,rp
>     4012870c:   d3 39 1b f0     extrw,u r25,31,16,r25
>     40128710:   e8 00 00 68     b,l 4012874c <outb+0x7c>,r0
>     40128714:   53 c2 3e e1     ldd -90(sp),rp
>     40128718:   50 3c 0c 90     ldd 648(r1),ret0
>     4012871c:   0f 9a 20 da     ldd,s r26(ret0),r26
>     40128720:   9f 40 20 40     cmpb,*= r0,r26,40128748 <outb+0x78>
>     40128724:   2b 70 30 00     addil L%21800,dp,r1
>     40128728:   d3 39 1b f0     extrw,u r25,31,16,r25
>     4012872c:   50 3c 02 10     ldd 108(r1),ret0
>     40128730:   0f 80 10 dc     ldd 0(ret0),ret0
>     40128734:   37 dd 3f a1     ldo -30(sp),ret1
>     40128738:   53 9c 00 30     ldd 18(ret0),ret0
>     4012873c:   53 82 00 20     ldd 10(ret0),rp
>     40128740:   e8 40 f0 00     bve,l (rp),rp
>     40128744:   53 9b 00 30     ldd 18(ret0),dp
> ->  40128748:   53 c2 3e e1     ldd -90(sp),rp
>     4012874c:   e8 40 d0 00     bve (rp)
>     40128750:   53 c4 3f 0d     ldd,mb -80(sp),r4
>     40128754:   00 00 00 00     break 0,0
> 
> In all three cases, register %ret0 contained 000000000002c000.

I don't know offhand what the 0x2c000 is used for.
It seems like an LBA register offset e.g. 0x20000 + (ROPE_NUM << 13)

Which seems odd given we should be accessing one of
the GMMIO ranges which generates IO Port transactions:
#ifdef CONFIG_64BIT
	/* GMMIO is  distributed range. Every LBA/Rope gets part it. */
	if (ldev->hba.gmmio_space.flags) {
		err = request_resource(&iomem_resource, &(ldev->hba.gmmio_space));
....

and 

#define PIOP_TO_GMMIO(lba, addr) \
        ((lba)->iop_base + (((addr)&0xFFFC)<<10) + ((addr)&3))

I was pretty sure iop_base is > 4GB.

hth,
grant
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From - Thu Nov 08 21:06:28 2018
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> Maybe try the your kernels on ioz?
> Try the kernels from ion or ioz on your machine?
> 
> on:~# uname -a
> Linux ion 2.6.37-rc1+ #20 SMP Mon Nov 1 13:50:38 PDT 2010 parisc64 GNU/Linux
> 
> ioz:~# uname -a
> Linux ioz 2.6.34-rc6 #25 Tue May 11 02:29:56 GMT 2010 parisc64 GNU/Linux
> 
> Source on ioz:/usr/src/linux-2.6 should match the kernel.
> jejb is generally using ion.

I tried the config from ion.  It also crashed on boot but in a different
way.  It did get further though.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Tue, 2010-11-02 at 10:24 -0400, John David Anglin wrote:
> > Maybe try the your kernels on ioz?
> > Try the kernels from ion or ioz on your machine?
> > 
> > on:~# uname -a
> > Linux ion 2.6.37-rc1+ #20 SMP Mon Nov 1 13:50:38 PDT 2010 parisc64 GNU/Linux
> > 
> > ioz:~# uname -a
> > Linux ioz 2.6.34-rc6 #25 Tue May 11 02:29:56 GMT 2010 parisc64 GNU/Linux
> > 
> > Source on ioz:/usr/src/linux-2.6 should match the kernel.
> > jejb is generally using ion.
> 
> I tried the config from ion.  It also crashed on boot but in a different
> way.  It did get further though.

Ion's config is in my home directory; current config is
~jejb/config-2.6.37-rc1

It's a highly modular one based on debian kernels.

James


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Fix kernel warnings caused by the driver name of GSC PS/2 containing '/'.

The following warnings are observed on a K410 system :

[   10.700000] name 'GSC PS/2 keyboard'
[   10.732000] ------------[ cut here ]------------
[   10.772000] WARNING: at fs/proc/generic.c:323
[   10.828000] Modules linked in:
[   10.916000] 
[   10.916000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   10.936000] PSW: 00000000000001000000000000001111 Not tainted
[   10.992000] r00-03  0004000f 104fe3e0 10201ea0 00000000
[   11.060000] r04-07  4fc405c8 00000006 4fc405c8 4fc40694
[   11.124000] r08-11  4fc40708 10438aa0 00000001 1043bfc8
[   11.184000] r12-15  104ff2a0 104ff2a0 4fc38634 104ff2a0
[   11.248000] r16-19  f0001570 10479af0 f000006c 1044fe50
[   11.308000] r20-23  00000000 00000028 104cd858 00000000
[   11.372000] r24-27  ffffffff 0000000e 1044fe10 1043bbe0
[   11.436000] r28-31  0000002b 00000078 4fc40800 0000000d
[   11.496000] sr00-03  00000000 00000000 00000000 00000000
[   11.560000] sr04-07  00000000 00000000 00000000 00000000
[   11.624000] 
[   11.688000] IASQ: 00000000 00000000 IAOQ: 10201ea0 10201ea4
[   11.704000]  IIR: 03ffe01f    ISR: 00000000  IOR: 0000000d
[   11.772000]  CPU:        0   CR30: 4fc40000 CR31: f01043b0
[   11.836000]  ORIG_R28: 4fc40940
[   11.904000]  IAOQ[0]: __xlate_proc_name+0x90/0xd0
[   11.940000]  IAOQ[1]: __xlate_proc_name+0x94/0xd0
[   11.996000]  RP(r2): __xlate_proc_name+0x90/0xd0
[   12.052000] Backtrace:
[   12.108000]  [<10257790>] vsnprintf+0x290/0x4f4
[   12.136000] 
[   12.188000] ---[ end trace 91bf6ece17e322dd ]---
[   12.208000] serio: GSC PS/2 keyboard port at 0x0001c000 irq 19 @ 10:12:7
[   12.264000] name 'GSC PS/2 mouse'
[   12.344000] ------------[ cut here ]------------
[   12.384000] WARNING: at fs/proc/generic.c:323
[   12.436000] Modules linked in:
[   12.524000] 
[   12.528000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   12.544000] PSW: 00000000000001000000000000001111 Tainted: G        W  
[   12.600000] r00-03  0004000f 104fe3e0 10201ea0 00000000
[   12.680000] r04-07  4fc405c8 00000006 4fc405c8 4fc40694
[   12.740000] r08-11  4fc40708 10438aa0 00000001 1043bfc8
[   12.804000] r12-15  104ff2a0 104ff2a0 4fc38634 104ff2a0
[   12.868000] r16-19  f0001570 10479af0 f000006c 1044fe50
[   12.928000] r20-23  00000000 00000025 104cd858 00000000
[   12.992000] r24-27  ffffffff 0000000e 1044fe10 1043bbe0
[   13.056000] r28-31  00000028 00000078 4fc40800 0000000d
[   13.116000] sr00-03  00000000 00000000 00000000 00000000
[   13.180000] sr04-07  00000000 00000000 00000000 00000000
[   13.244000] 
[   13.308000] IASQ: 00000000 00000000 IAOQ: 10201ea0 10201ea4
[   13.324000]  IIR: 03ffe01f    ISR: 00000000  IOR: 0000000d
[   13.392000]  CPU:        0   CR30: 4fc40000 CR31: f01043b0
[   13.456000]  ORIG_R28: 4fc40940
[   13.524000]  IAOQ[0]: __xlate_proc_name+0x90/0xd0
[   13.560000]  IAOQ[1]: __xlate_proc_name+0x94/0xd0
[   13.616000]  RP(r2): __xlate_proc_name+0x90/0xd0
[   13.672000] Backtrace:
[   13.728000]  [<10257790>] vsnprintf+0x290/0x4f4
[   13.756000] 
[   13.808000] ---[ end trace 91bf6ece17e322de ]---
[   13.828000] serio: GSC PS/2 mouse port at 0x00020100 irq 19 @ 10:12:8


Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>


--MP_/vajWLPw2yosThoeUL+NxU+i
Content-Type: text/x-patch
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename=gsc-ps2-driver-name.patch

--- drivers/input/serio/gscps2.c.orig	2010-11-01 09:54:50.000000000 +0100
+++ drivers/input/serio/gscps2.c	2010-11-01 09:55:53.000000000 +0100
@@ -358,7 +358,7 @@
 	gscps2_reset(ps2port);
 	ps2port->id = readb(ps2port->addr + GSC_ID) & 0x0f;
 
-	snprintf(serio->name, sizeof(serio->name), "GSC PS/2 %s",
+	snprintf(serio->name, sizeof(serio->name), "gsc-ps2-%s",
 		 (ps2port->id == GSC_ID_KEYBOARD) ? "keyboard" : "mouse");
 	strlcpy(serio->phys, dev_name(&dev->dev), sizeof(serio->phys));
 	serio->id.type		= SERIO_8042;

--MP_/vajWLPw2yosThoeUL+NxU+i--
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From - Thu Nov 08 21:06:28 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc : Fix GSC PS/2 driver name for keyboard and mouse
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On 11/02/2010 04:23 PM, Guy Martin wrote:
> Fix kernel warnings caused by the driver name of GSC PS/2 containing '/'.
>
> The following warnings are observed on a K410 system :
>
> [   10.700000] name 'GSC PS/2 keyboard'
> [   10.732000] ------------[ cut here ]------------
> [   10.772000] WARNING: at fs/proc/generic.c:323
> [   10.828000] Modules linked in:
> [   10.916000]
> [   10.916000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [   10.936000] PSW: 00000000000001000000000000001111 Not tainted
> [   10.992000] r00-03  0004000f 104fe3e0 10201ea0 00000000
> [   11.060000] r04-07  4fc405c8 00000006 4fc405c8 4fc40694
> [   11.124000] r08-11  4fc40708 10438aa0 00000001 1043bfc8
> [   11.184000] r12-15  104ff2a0 104ff2a0 4fc38634 104ff2a0
> [   11.248000] r16-19  f0001570 10479af0 f000006c 1044fe50
> [   11.308000] r20-23  00000000 00000028 104cd858 00000000
> [   11.372000] r24-27  ffffffff 0000000e 1044fe10 1043bbe0
> [   11.436000] r28-31  0000002b 00000078 4fc40800 0000000d
> [   11.496000] sr00-03  00000000 00000000 00000000 00000000
> [   11.560000] sr04-07  00000000 00000000 00000000 00000000
> [   11.624000]
> [   11.688000] IASQ: 00000000 00000000 IAOQ: 10201ea0 10201ea4
> [   11.704000]  IIR: 03ffe01f    ISR: 00000000  IOR: 0000000d
> [   11.772000]  CPU:        0   CR30: 4fc40000 CR31: f01043b0
> [   11.836000]  ORIG_R28: 4fc40940
> [   11.904000]  IAOQ[0]: __xlate_proc_name+0x90/0xd0
> [   11.940000]  IAOQ[1]: __xlate_proc_name+0x94/0xd0
> [   11.996000]  RP(r2): __xlate_proc_name+0x90/0xd0
> [   12.052000] Backtrace:
> [   12.108000]  [<10257790>] vsnprintf+0x290/0x4f4
> [   12.136000]
> [   12.188000] ---[ end trace 91bf6ece17e322dd ]---
> [   12.208000] serio: GSC PS/2 keyboard port at 0x0001c000 irq 19 @ 10:12:7
> [   12.264000] name 'GSC PS/2 mouse'
> [   12.344000] ------------[ cut here ]------------
> [   12.384000] WARNING: at fs/proc/generic.c:323
> [   12.436000] Modules linked in:
> [   12.524000]
> [   12.528000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [   12.544000] PSW: 00000000000001000000000000001111 Tainted: G        W
> [   12.600000] r00-03  0004000f 104fe3e0 10201ea0 00000000
> [   12.680000] r04-07  4fc405c8 00000006 4fc405c8 4fc40694
> [   12.740000] r08-11  4fc40708 10438aa0 00000001 1043bfc8
> [   12.804000] r12-15  104ff2a0 104ff2a0 4fc38634 104ff2a0
> [   12.868000] r16-19  f0001570 10479af0 f000006c 1044fe50
> [   12.928000] r20-23  00000000 00000025 104cd858 00000000
> [   12.992000] r24-27  ffffffff 0000000e 1044fe10 1043bbe0
> [   13.056000] r28-31  00000028 00000078 4fc40800 0000000d
> [   13.116000] sr00-03  00000000 00000000 00000000 00000000
> [   13.180000] sr04-07  00000000 00000000 00000000 00000000
> [   13.244000]
> [   13.308000] IASQ: 00000000 00000000 IAOQ: 10201ea0 10201ea4
> [   13.324000]  IIR: 03ffe01f    ISR: 00000000  IOR: 0000000d
> [   13.392000]  CPU:        0   CR30: 4fc40000 CR31: f01043b0
> [   13.456000]  ORIG_R28: 4fc40940
> [   13.524000]  IAOQ[0]: __xlate_proc_name+0x90/0xd0
> [   13.560000]  IAOQ[1]: __xlate_proc_name+0x94/0xd0
> [   13.616000]  RP(r2): __xlate_proc_name+0x90/0xd0
> [   13.672000] Backtrace:
> [   13.728000]  [<10257790>] vsnprintf+0x290/0x4f4
> [   13.756000]
> [   13.808000] ---[ end trace 91bf6ece17e322de ]---
> [   13.828000] serio: GSC PS/2 mouse port at 0x00020100 irq 19 @ 10:12:8
>
>
> Signed-off-by: Guy Martin<gmsoft@tuxicoman.be>

Acked-by: Helge Deller <deller@gmx.de>

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From - Thu Nov 08 21:06:28 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [PATCH] parisc : Fix GSC PS/2 driver name for keyboard and mouse
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On Tue, Nov 02, 2010 at 10:17:14PM +0100, Helge Deller wrote:
> >The following warnings are observed on a K410 system :
> >

Thanks guys, looks good.

Guy, are you running upstream (-rc1) on your K-class? Are interrupts on
GSC devices working? Does it have a dino tulip that's working? :)

--Kyle
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Subject: Re: HPMC in lba_pat_out8 on rp3440
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On Tue, 02 Nov 2010, Grant Grundler wrote:

> > IIA Offset (back entry)      = 0x0000000040329438
> 
> Is this a kernel address...can you tell me what it matches?

The kernel address was shown in the analysis at the end of of the dump..

> Can you please also look up GR1?

I believe GR1 points into the DLT.  The code is loading the address
of lba_t32.  One can see this from the relocations for lba_pci.o.

> > 000000004031e3f0 <lba_pat_out8>:
> >     4031e3f0:   d7 9f 18 52     depwi,z -1,29,14,ret0
> >     4031e3f4:   53 5f 03 30     ldd 198(r26),r31
> >     4031e3f8:   db 39 0b f0     extrd,u r25,63,16,r25
> >     4031e3fc:   db 33 0b fe     extrd,u r25,63,2,r19
> >     4031e400:   0b 99 02 39     and r25,ret0,r25
> >     4031e404:   f3 39 11 4a     depd,z r25,53,54,r25
> >     4031e408:   0a 79 0a 39     add,l r25,r19,r25
> >     4031e40c:   0b 3f 0a 3f     add,l r31,r25,r31
> >     4031e410:   0f f8 12 00     stb r24,0(r31)
> >     4031e414:   0f 40 10 dc     ldd 0(r26),ret0
> >     4031e418:   2b 6d 00 00     addil L%1a000,dp,r1
> > ->  4031e41c:   0f 80 10 9f     ldw 0(ret0),r31
> >     4031e420:   50 3c 0f 10     ldd 788(r1),ret0
> >     4031e424:   e8 40 d0 00     bve (rp)
> >     4031e428:   0f 9f 12 80     stw r31,0(ret0)
> >     4031e42c:   00 00 00 00     break 0,0

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Jiri Slaby <jslaby@suse.cz>
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Subject: [PATCH 2/3] parisc: cleanup console handling
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* use newly added for_each_console for iterating consoles
* add proper console locking
* do not initialize tmp twice
* no need to declare console_drivers, it's already done in console.h

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/pdc_cons.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 66d1f17..11bdd68 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -92,8 +92,6 @@ static int pdc_console_setup(struct console *co, char *options)
 
 static struct timer_list pdc_console_timer;
 
-extern struct console * console_drivers;

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From: Jiri Slaby <jslaby@suse.cz>
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Subject: [PATCH v2 2/5] parisc: cleanup console handling
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* use newly added for_each_console for iterating consoles
* add proper console locking
* do not initialize tmp twice
* no need to declare console_drivers, it's already done in console.h

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/pdc_cons.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 66d1f17..11bdd68 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -92,8 +92,6 @@ static int pdc_console_setup(struct console *co, char *options)
 
 static struct timer_list pdc_console_timer;
 
-extern struct console * console_drivers;

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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: HPMC in lba_pat_out8 on rp3440
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On Tue, Nov 02, 2010 at 11:19:20PM -0400, John David Anglin wrote:
> On Tue, 02 Nov 2010, Grant Grundler wrote:
> 
> > > IIA Offset (back entry)      = 0x0000000040329438
> > 
> > Is this a kernel address...can you tell me what it matches?
> 
> The kernel address was shown in the analysis at the end of of the dump..

Dave,
Sorry...I had written the questions while going through the email
and then forgot to delete them when I finished reading everything.

In short, I'm skeptical this is a problem in lba_pci code.
Much more likely to be a driver issue or possibly HW issue.
I was pointing at the configs that booted on ion/ioz only to
help rule out driver or HW issues. Feel free to use ion for
testing this.

Also, if there are any add-on PCI cards in the machine, consider
removing them.

thanks,
grant
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Subject: Re: [PATCH v2 2/5] parisc: cleanup console handling
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On Thu, Nov 04, 2010 at 04:20:21PM +0100, Jiri Slaby wrote:
> * use newly added for_each_console for iterating consoles
> * add proper console locking
> * do not initialize tmp twice
> * no need to declare console_drivers, it's already done in console.h
> 
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: Helge Deller <deller@gmx.de>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: linux-parisc@vger.kernel.org

This looks fine...
Acked-by: Kyle McMartin <kyle@mcmartin.ca>

I assume that since it depends on 1/5 you'd prefer to merge it with the
rest?

--Kyle
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Hi,

We are seeing corruption of parent stack after fork of a multi-threaded process.
Something that resembles this reported bug:

http://wiki.parisc-linux.org/TestCases#head-b2a1d5999b1b7cbc6878005693440f9e2960e895

We have been seeing this bug on and off for the past year. very hard
to reproduce it.

The only thing is... we are running our kernel (2.6.32) on ARM,
so I am thinking this problem may be either a generic kernel problem
or common to PA-RISC and ARM.
I don't see anywhere that this problem was ever solved.

Anyway, I am sitting at Arnd's presentation in LPC at the moment (good talk).
If any of you guys are present, please let me know so we can discuss
the issue face to face.

Thanks,
Amir.
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On Thu, 2010-11-04 at 13:02 -0500, Amir G. wrote:
> Hi,
> 
> We are seeing corruption of parent stack after fork of a multi-threaded process.
> Something that resembles this reported bug:
> 
> http://wiki.parisc-linux.org/TestCases#head-b2a1d5999b1b7cbc6878005693440f9e2960e895
> 
> We have been seeing this bug on and off for the past year. very hard
> to reproduce it.
> 
> The only thing is... we are running our kernel (2.6.32) on ARM,
> so I am thinking this problem may be either a generic kernel problem
> or common to PA-RISC and ARM.
> I don't see anywhere that this problem was ever solved.
> 
> Anyway, I am sitting at Arnd's presentation in LPC at the moment (good talk).
> If any of you guys are present, please let me know so we can discuss
> the issue face to face.

OK, so just to summarise the rather hurried discussion for those not
present:  I'd always assumed that this problem is parisc specific
because no other vipt architecture saw it.  However it is possible it's
some I/D incoherency issue within the generic kernel itself ... it's
just a lot rarer on other architectures.  If you see it on arm, this
would confirm that view.  The main difference between PA and other VIPT
architectures is that our equivalency modulus for aliasing is much
bigger (we have a 4MB stride).

So what I'll do is have a look into this again.  I recently successfully
resurrected the tmpalias flushing patches (these eliminate the
possibility that it's some kind of TLB handling error because they allow
cache flushes without a corresponding TLB entry), but I'll look at our
generic paths again ... my greatest suspicions would be the
handle_mm_fault() path.

But basically, the summary is that we see the issue but have never
solved it.

James


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From - Thu Nov 08 21:06:29 2018
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Subject: Re: [PATCH v2 2/5] parisc: cleanup console handling
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Cc: Jiri Slaby <jslaby@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>, werner@suse.de,
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To: Kyle McMartin <kyle@mcmartin.ca>
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On 11/04/2010 06:26 PM, Kyle McMartin wrote:
> On Thu, Nov 04, 2010 at 04:20:21PM +0100, Jiri Slaby wrote:
>> * use newly added for_each_console for iterating consoles
>> * add proper console locking
>> * do not initialize tmp twice
>> * no need to declare console_drivers, it's already done in console.h
>>
>> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
>> Cc: Kyle McMartin <kyle@mcmartin.ca>
>> Cc: Helge Deller <deller@gmx.de>
>> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
>> Cc: linux-parisc@vger.kernel.org
> 
> This looks fine...
> Acked-by: Kyle McMartin <kyle@mcmartin.ca>
> 
> I assume that since it depends on 1/5 you'd prefer to merge it with the
> rest?

Yeah, I would like to, with ACKs from relevant people.

thanks,
-- 
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: [PATCH] parisc : KittyHawk LCD fix
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K class aka KittyHawk don't have LED support on their LCD. Installing
HP-UX confirmed this. The current led_wq fills the LCD with black
characters each time it runs.

The patch prevents the led_wq workqueue and its proc entry to be
created for KittyHawk machines.

It also increase min_cmd_delay as currently, one character out of two
is lost when a string is sent to the LCD.

Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>

--MP_/YnbXlHkOhX_Cqaaz2As.xc3
Content-Type: text/x-patch
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Content-Disposition: attachment; filename=KittyHawk-LCD-fix.diff

--- drivers/parisc/led.c.orig	2010-11-04 16:06:04.000000000 +0100
+++ drivers/parisc/led.c	2010-11-06 16:39:44.000000000 +0100
@@ -64,6 +64,7 @@
 static unsigned int led_lanrxtx   __read_mostly = 1;
 static char lcd_text[32]          __read_mostly;
 static char lcd_text_default[32]  __read_mostly;
+static int  lcd_no_led_support    __read_mostly = 0; /* KittyHawk doesn't support LED on its LCD */
 
 
 static struct workqueue_struct *led_wq;
@@ -115,7 +116,7 @@
 	.lcd_width =		16,
 	.lcd_cmd_reg_addr =	KITTYHAWK_LCD_CMD,
 	.lcd_data_reg_addr =	KITTYHAWK_LCD_DATA,
-	.min_cmd_delay =	40,
+	.min_cmd_delay =	80,
 	.reset_cmd1 =		0x80,
 	.reset_cmd2 =		0xc0,
 };
@@ -135,6 +136,9 @@
 	/* Display the default text now */
 	if (led_type == LED_HASLCD) lcd_print( lcd_text_default );
 
+	/* KittyHawk has no LED support on its LCD */
+	if (lcd_no_led_support) return 0;
+
 	/* Create the work queue and queue the LED task */
 	led_wq = create_singlethread_workqueue("led_wq");	
 	queue_delayed_work(led_wq, &led_task, 0);
@@ -248,9 +252,13 @@
 
 	proc_pdc_root = proc_mkdir("pdc", 0);
 	if (!proc_pdc_root) return -1;
-	ent = proc_create_data("led", S_IRUGO|S_IWUSR, proc_pdc_root,
-				&led_proc_fops, (void *)LED_NOLCD); /* LED */
-	if (!ent) return -1;
+
+	if (!lcd_no_led_support)
+	{
+		ent = proc_create_data("led", S_IRUGO|S_IWUSR, proc_pdc_root,
+					&led_proc_fops, (void *)LED_NOLCD); /* LED */
+		if (!ent) return -1;
+	}
 
 	if (led_type == LED_HASLCD)
 	{
@@ -692,6 +700,7 @@
 	case 0x58B:		/* KittyHawk DC2 100 (K200) */
 		printk(KERN_INFO "%s: KittyHawk-Machine (hversion 0x%x) found, "
 				"LED detection skipped.\n", __FILE__, CPU_HVERSION);
+		lcd_no_led_support = 1;
 		goto found;	/* use the preinitialized values of lcd_info */
 	}
 

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From - Thu Nov 08 21:06:29 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: Re: can't find a register in class 'R1_REGS' while reloading 'asm'
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Any update on this ?

I'm still running into the issue with gcc 4.4.4 and linux 2.6.37-rc1.

Regards,
  Guy

On Sun, 7 Feb 2010 22:20:34 -0500 (EST)
"John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:

> > On Mon, Dec 07, 2009 at 10:01:14PM -0500, John David Anglin wrote:
> > > -	volatile unsigned int *a;
> > > +	volatile register unsigned int *a asm ("r20") =
> > > __ldcw_align(x); 
> > 
> > I'm reticent about moving the assignment around the mb(), should I
> > edit this to return the assignment and apply, or apply as is?
> 
> I don't believe the __ldcw_align operation involves a memory read or
> write.  It's just adjusting a pointer.  Thus moving it past the mb()
> shouldn't matter.  That said, I been wrong before...
> 
> Dave

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From - Thu Nov 08 21:06:29 2018
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Subject: Re: can't find a register in class 'R1_REGS' while reloading 'asm'
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To: gmsoft@tuxicoman.be (Guy Martin)
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Not really.  The register allocator is shooting itself in the foot.
4.5/4.6 may be better but I think the work around should be applied
to resolve the problem.

Dave

> Any update on this ?
> 
> I'm still running into the issue with gcc 4.4.4 and linux 2.6.37-rc1.
> 
> Regards,
>   Guy
> 
> On Sun, 7 Feb 2010 22:20:34 -0500 (EST)
> "John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:
> 
> > > On Mon, Dec 07, 2009 at 10:01:14PM -0500, John David Anglin wrote:
> > > > -	volatile unsigned int *a;
> > > > +	volatile register unsigned int *a asm ("r20") =
> > > > __ldcw_align(x); 
> > > 
> > > I'm reticent about moving the assignment around the mb(), should I
> > > edit this to return the assignment and apply, or apply as is?
> > 
> > I don't believe the __ldcw_align operation involves a memory read or
> > write.  It's just adjusting a pointer.  Thus moving it past the mb()
> > shouldn't matter.  That said, I been wrong before...
> > 
> > Dave
> 


-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:29 2018
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Subject: Re: HPMC in lba_pat_out8 on rp3440
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> Sorry...I had written the questions while going through the email
> and then forgot to delete them when I finished reading everything.

No problem.

> In short, I'm skeptical this is a problem in lba_pci code.
> Much more likely to be a driver issue or possibly HW issue.
> I was pointing at the configs that booted on ion/ioz only to
> help rule out driver or HW issues. Feel free to use ion for
> testing this.

I agree.  I think the hpmc in the lba_pci code and the hpmc with
LBA debug messages enabled are likely related.  Do you have any idea
how the code could avoid shooting itself in the foot?

Do you think there is a SMP race in setting up the PCI bus.  I was
thinking of trying an identical UP build.  I believe that all processors
are enabled at the time the hpmc occurs.

While there might be a hardware problem, the machine consistently boots
2.6.26-2-parisc64-smp without problems.  Until I lost the hard drive,
it was also running a 2.6.34 kernel.  The debian kernels tend to have
everything but the kitchen sink enabled.  I may have an older version
of this config still around.

I did update all the firmware on the machine a couple of months
ago.  This definitely helped with various memory corruption issues
that were occuring at boot time.  I believe that HP listed the
patch as critical.  Anyway, there's a chance that this changed
some of PDC responses.

> Also, if there are any add-on PCI cards in the machine, consider
> removing them.

I will take a look in the machine when I get back from Costa Rica
at the end of the week.  I think there may be one or two scsi
controllers.  There is also a radion card in it somewhere.

Thanks for you help in trying to narrow this down,
Dave

> thanks,
> grant
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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From - Thu Nov 08 21:06:29 2018
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From - Thu Nov 08 21:06:29 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPMC in lba_pat_out8 on rp3440
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On Sun, 07 Nov 2010, John David Anglin wrote:

> > In short, I'm skeptical this is a problem in lba_pci code.
> > Much more likely to be a driver issue or possibly HW issue.
> > I was pointing at the configs that booted on ion/ioz only to
> > help rule out driver or HW issues. Feel free to use ion for
> > testing this.
> 
> I agree.  I think the hpmc in the lba_pci code and the hpmc with
> LBA debug messages enabled are likely related.  Do you have any idea
> how the code could avoid shooting itself in the foot?
> 
> Do you think there is a SMP race in setting up the PCI bus.  I was
> thinking of trying an identical UP build.  I believe that all processors
> are enabled at the time the hpmc occurs.

UP kernels behaive differently.  Boot is hpmc'ing in handle_unaligned.
The kernel dies in this block of code:

00000000401218f4 <.L3^B18>:
    401218f4:   e8 1f 11 35     b,l 40121194 <.L3^B2+0x20>,r0
    401218f8:   db 85 0f e0     extrd,s ret0,63,32,r5
    401218fc:   9f fc 20 10     cmpb,*= ret0,r31,4012190c <.L3^B18+0x18>
    40121900:   36 7c 22 00     ldo 1100(r19),ret0
    40121904:   bf fc 31 15     cmpb,*<> ret0,r31,40121194 <.L3^B2+0x20>
    40121908:   34 05 3f ff     ldi -1,r5
    4012190c:   34 16 00 00     ldi 0,r22
    40121910:   50 d5 05 40     ldd 2a0(r6),r21
    40121914:   50 df 05 30     ldd 298(r6),r31
    40121918:   db 57 0b fb     extrd,u r26,63,5,r23
    4012191c:   f2 75 00 7d     depd,z r21,60,3,r19
    40121920:   00 1f 58 20     mtsp r31,sr1
    40121924:   f2 a0 04 1d     depd r0,63,3,r21
->  40121928:   0e a0 50 d6     ldd 0(sr1,r21),r22
    4012192c:   0e b0 50 d4     ldd 8(sr1,r21),r20
    40121930:   96 73 00 80     subi 40,r19,r19
    40121934:   01 73 18 40     mtsar r19
    40121938:   d2 96 02 16     shrpd r22,r20,sar,r22
    4012193c:   08 00 02 5c     copy r0,ret0

sr1 is 0 and r21 is 00000000c0000008, so I think we have an unaligned
kernel load.  Not sure where it is coming from.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:29 2018
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While looking at all the other problems surrounding our coherency
issues:

http://wiki.parisc-linux.org/TestCases

I noticed that we have no nullifier naitlb (non access instruction tlb
miss interruption) handler (we do in the nadtlb handler).  What this
means is that an icache flush to any area always pulls in the tlb entry
(or generates a page fault).  Can anyone remember why we do this?  I
suspect it's because for data, we don't want to prefetch if we have no
TLB entry and the effect on flushing is just incidental.

What I don't like about this behaviour is that if we flush a user
instruction page, we actually cause a TLB entry to be placed there
(where none might have existed before).  This, in turn, causes the CPU
to think it's allowed to do cache movein.  Premature movein (say because
we flush before the data is present) could be one cause of our apparent
icache problems in threading.

James


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From - Thu Nov 08 21:06:29 2018
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Newsgroups: gmane.linux.usb.general,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.drivers.rdma,gmane.linux.drivers.mtd,gmane.network.socketcan.devel,gmane.linux.network,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 00/14] Use printf extension %pR for struct resource
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Archived-At: <http://permalink.gmane.org/gmane.linux.usb.general/38634>

Yet more trivia...

Joe Perches (14):
  arch/frv: Use printf extension %pR for struct resource
  arch/mips: Use printf extension %pR for struct resource
  arch/powerpc: Use printf extension %pR for struct resource
  drivers/dma/ppc4xx: Use printf extension %pR for struct resource
  drivers/infiniband: Use printf extension %pR for struct resource
  drivers/mfd: Use printf extension %pR for struct resource
  drivers/mtd/maps: Use printf extension %pR for struct resource
  drivers/mtd/nand: Use printf extension %pR for struct resource
  drivers/net/can/sja1000: Use printf extension %pR for struct resource
  drivers/parisc: Use printf extension %pR for struct resource
  drivers/rapidio: Use printf extension %pR for struct resource
  drivers/uwb: Use printf extension %pR for struct resource
  drivers/video: Use printf extension %pR for struct resource
  sound/ppc: Use printf extension %pR for struct resource

 arch/frv/mb93090-mb00/pci-vdk.c               |    8 ++------
 arch/mips/txx9/generic/pci.c                  |    7 ++-----
 arch/powerpc/kernel/pci_64.c                  |    3 +--
 arch/powerpc/sysdev/tsi108_dev.c              |    8 ++++----
 drivers/dma/ppc4xx/adma.c                     |    5 ++---
 drivers/infiniband/hw/ipath/ipath_driver.c    |    5 ++---
 drivers/mfd/sm501.c                           |    7 ++-----
 drivers/mtd/maps/amd76xrom.c                  |    7 ++-----
 drivers/mtd/maps/ck804xrom.c                  |    7 ++-----
 drivers/mtd/maps/esb2rom.c                    |    9 +++------
 drivers/mtd/maps/ichxrom.c                    |    9 +++------
 drivers/mtd/maps/physmap_of.c                 |    4 +---
 drivers/mtd/maps/scx200_docflash.c            |    5 ++---
 drivers/mtd/nand/pasemi_nand.c                |    2 +-
 drivers/net/can/sja1000/sja1000_of_platform.c |    8 ++------
 drivers/parisc/dino.c                         |   13 +++++--------
 drivers/parisc/hppb.c                         |    6 ++----
 drivers/rapidio/rio.c                         |    4 ++--
 drivers/uwb/umc-dev.c                         |    7 ++-----
 drivers/video/platinumfb.c                    |    8 ++------
 sound/ppc/pmac.c                              |   12 ++++--------
 21 files changed, 48 insertions(+), 96 deletions(-)

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Using %pR standardizes the struct resource output.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/parisc/dino.c |   13 +++++--------
 drivers/parisc/hppb.c |    6 ++----
 2 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index d9f5148..d30a809 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -599,15 +599,13 @@ dino_fixup_bus(struct pci_bus *bus)
 				
 			}
 					
-			DBG("DEBUG %s assigning %d [0x%lx,0x%lx]\n",
+			DBG("DEBUG %s assigning %d [%pR]\n",
 			    dev_name(&bus->self->dev), i,
-			    bus->self->resource[i].start,
-			    bus->self->resource[i].end);
+			    &bus->self->resource[i]);
 			WARN_ON(pci_assign_resource(bus->self, i));
-			DBG("DEBUG %s after assign %d [0x%lx,0x%lx]\n",
+			DBG("DEBUG %s after assign %d [%pR]\n",
 			    dev_name(&bus->self->dev), i,
-			    bus->self->resource[i].start,
-			    bus->self->resource[i].end);
+			    &bus->self->resource[i]);
 		}
 	}
 
@@ -809,8 +807,7 @@ dino_bridge_init(struct dino_device *dino_dev, const char *name)
 		result = ccio_request_resource(dino_dev->hba.dev, &res[i]);
 		if (result < 0) {
 			printk(KERN_ERR "%s: failed to claim PCI Bus address "
-			       "space %d (0x%lx-0x%lx)!\n", name, i,
-			       (unsigned long)res[i].start, (unsigned long)res[i].end);
+			       "space %d (%pR)!\n", name, i, &res[i]);
 			return result;
 		}
 	}
diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c
index 815db17..898208e 100644
--- a/drivers/parisc/hppb.c
+++ b/drivers/parisc/hppb.c
@@ -74,10 +74,8 @@ static int hppb_probe(struct parisc_device *dev)
 
 	status = ccio_request_resource(dev, &card->mmio_region);
 	if(status < 0) {
-		printk(KERN_ERR "%s: failed to claim HP-PB "
-			"bus space (0x%08llx, 0x%08llx)\n",
-			__FILE__, (unsigned long long) card->mmio_region.start,
-			(unsigned long long) card->mmio_region.end);
+		printk(KERN_ERR "%s: failed to claim HP-PB bus space (%pR)\n",
+			__FILE__, &card->mmio_region);
 	}
 
         return 0;
-- 
1.7.3.1.g432b3.dirty


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On 10/14/2010 05:39 PM, Kyle McMartin wrote:
> On Thu, Oct 14, 2010 at 05:31:27AM +0000, Kyle McMartin wrote:
>> commit 7da1272547ebe96982a42292dfc833457708f4da
>> Author: Kyle McMartin<kyle@dreadnought.i.jkkm.org>
>> Date:   Thu Oct 14 01:02:23 2010 -0400
>>
>>      parisc: kill __do_IRQ
>>
>>      Signed-off-by: Kyle McMartin<kyle@redhat.com>
>>
> So, I've killed our __do_IRQ calls... Could people please test this
> branch on a variety of machines? I've split up the changes so there's
> logical separation between converting the CPU interrupts, and the
> sub-interrupt sources (Superio, dino, etc.) so if your device fails
> to interrupt, you can just git revert that bit and test the CPU
> conversion while I fix it up.
>
> I *think* everything should be ok though, I've tested it on a500/rp3440
> class machines with iosapic, but not on anything older.
Hi Kyle,

I just got again a chance to boot up my b160L and 715/64 machines.

Both broke due to the IRQ changes. I did reverted all of your IRQ 
patches (based on current Linus head branch) and now they boot again.
Basically they just hang during the SCSI initialization (timeouts while 
detectings discs).

So, there is something wrong for Lasi/GSC and Dino busses....

Any idea?

Helge


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On Tue, 09 Nov 2010, John David Anglin wrote:

> On Sun, 07 Nov 2010, John David Anglin wrote:
> 
> > > In short, I'm skeptical this is a problem in lba_pci code.
> > > Much more likely to be a driver issue or possibly HW issue.
> > > I was pointing at the configs that booted on ion/ioz only to
> > > help rule out driver or HW issues. Feel free to use ion for
> > > testing this.
> > 
> > I agree.  I think the hpmc in the lba_pci code and the hpmc with
> > LBA debug messages enabled are likely related.  Do you have any idea
> > how the code could avoid shooting itself in the foot?
> > 
> > Do you think there is a SMP race in setting up the PCI bus.  I was
> > thinking of trying an identical UP build.  I believe that all processors
> > are enabled at the time the hpmc occurs.
> 
> UP kernels behaive differently.  Boot is hpmc'ing in handle_unaligned.
> The kernel dies in this block of code:
> 
> 00000000401218f4 <.L3^B18>:
>     401218f4:   e8 1f 11 35     b,l 40121194 <.L3^B2+0x20>,r0
>     401218f8:   db 85 0f e0     extrd,s ret0,63,32,r5
>     401218fc:   9f fc 20 10     cmpb,*= ret0,r31,4012190c <.L3^B18+0x18>
>     40121900:   36 7c 22 00     ldo 1100(r19),ret0
>     40121904:   bf fc 31 15     cmpb,*<> ret0,r31,40121194 <.L3^B2+0x20>
>     40121908:   34 05 3f ff     ldi -1,r5
>     4012190c:   34 16 00 00     ldi 0,r22
>     40121910:   50 d5 05 40     ldd 2a0(r6),r21
>     40121914:   50 df 05 30     ldd 298(r6),r31
>     40121918:   db 57 0b fb     extrd,u r26,63,5,r23
>     4012191c:   f2 75 00 7d     depd,z r21,60,3,r19
>     40121920:   00 1f 58 20     mtsp r31,sr1
>     40121924:   f2 a0 04 1d     depd r0,63,3,r21
> ->  40121928:   0e a0 50 d6     ldd 0(sr1,r21),r22
>     4012192c:   0e b0 50 d4     ldd 8(sr1,r21),r20
>     40121930:   96 73 00 80     subi 40,r19,r19
>     40121934:   01 73 18 40     mtsar r19
>     40121938:   d2 96 02 16     shrpd r22,r20,sar,r22
>     4012193c:   08 00 02 5c     copy r0,ret0
> 
> sr1 is 0 and r21 is 00000000c0000008, so I think we have an unaligned
> kernel load.  Not sure where it is coming from.

I've pretty much narrowed down where the unaligned load is.  It coming from
init_page_buffers.  I had to disable inlining of this function to simplify 
the code.

00000000401f9698 <init_page_buffers>:
    401f9698:   08 03 02 41     copy r3,r1
    401f969c:   08 1e 02 43     copy sp,r3
    401f96a0:   73 c1 00 88     std,ma r1,40(sp)
    401f96a4:   0f 40 10 dc     ldd 0(r26),ret0
    401f96a8:   c6 9c c0 e8     bb,>= ret0,14,401f9724 <init_page_buffers+0x8c>
    401f96ac:   db 5c 0b fd     extrd,u r26,63,3,ret0
    401f96b0:   bf 80 20 e8     cmpb,*<> r0,ret0,401f972c <init_page_buffers+0x94>
    401f96b4:   53 54 00 20     ldd 10(r26),r20
    401f96b8:   0f 40 10 dc     ldd 0(r26),ret0
    401f96bc:   db 9a 0b 9f     extrd,u ret0,60,1,r26
    401f96c0:   0b 40 28 a0     cmpclr,*= r0,r26,r0
    401f96c4:   08 14 02 53     copy r20,r19
->  401f96c8:   0e 60 10 dc     ldd 0(r19),ret0
    401f96cc:   c7 5c 40 72     bb,<,n ret0,1a,401f970c <init_page_buffers+0x74>

The problem seems to occur in accessing the page buffers for the page.
The above code has a BUG_ON checking the alignment of the page.  I then
added a BUG_ON to check the alignment of bh:

static __attribute__((__noinline__)) void
init_page_buffers(struct page *page, struct block_device *bdev,
                        sector_t block, int size)
{
	struct buffer_head *head = page_buffers(page);
	struct buffer_head *bh = head;
	int uptodate = PageUptodate(page);

	BUG_ON ((long)bh & 7);

However, with this BUG_ON the unaligned access doesn't occur...
The assembly code changes to:

00000000401f9698 <init_page_buffers>:
    401f9698:   08 03 02 41     copy r3,r1
    401f969c:   08 1e 02 43     copy sp,r3
    401f96a0:   73 c1 00 88     std,ma r1,40(sp)
    401f96a4:   0f 40 10 dc     ldd 0(r26),ret0
    401f96a8:   c6 9c c0 ea     bb,>=,n ret0,14,401f9724 <init_page_buffers+0x8c>
    401f96ac:   0f 40 10 dc     ldd 0(r26),ret0
    401f96b0:   db 94 0b 9f     extrd,u ret0,60,1,r20
    401f96b4:   9e 80 20 00     cmpb,*= r0,r20,401f96bc <init_page_buffers+0x24>
    401f96b8:   53 5a 00 20     ldd 10(r26),r26
    401f96bc:   db 5c 0b fd     extrd,u r26,63,3,ret0
    401f96c0:   bf 80 20 c8     cmpb,*<> r0,ret0,401f972c <init_page_buffers+0x94>
    401f96c4:   08 1a 02 53     copy r26,r19
    401f96c8:   0e 60 10 dc     ldd 0(r19),ret0
    401f96cc:   c7 5c 40 72     bb,<,n ret0,1a,401f970c <init_page_buffers+0x74>

There must be some kind of race in setting bh?  This is a UP build.
Any ideas.

I'm sure this came up before.  A different .config was used and the
problem disappeared.

However, the system didn't fully boot.  There was another unaligned
load in a ipv6 module.  I caught this because I still have the following
BUG_ON in unaligned.c:

dave@mx3210:~/linux/linux-2.6.36.y/arch/parisc/kernel$ git diff unaligned.c
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index 92d977b..f13ed88 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -212,6 +212,8 @@ static int emulate_ldd(struct pt_regs *regs, int toreg, int 
 
	DPRINTF("load " RFMT ":" RFMT " to r%d for 8 bytes\n", 
		 regs->isr, regs->ior, toreg);
+       BUG_ON (regs->isr == 0);
+
#ifdef CONFIG_PA20
		   
#ifndef CONFIG_64BIT

Do we need to emulate ldd in the kernel?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--AqsLC8rIMeq19msA
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="hpmc4.txt"

Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.17 root@c3k Sun Mar  7 16:13:48 MST 2010
Skipping extended partition 6 - beyond reach of IPL

Partition Start(MB) End(MB) Id Type
1               1      31   f0 Palo
2              32     156   83 ext2
5             157    6832   83 ext2

PALO(F0) partition contains:
    0/vmlinux64 6241289 bytes @ 0x48000

Command line for kernel: 'root=/dev/sda5 console=ttyS1 HOME=/ palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
Selected ramdisk: /initrd.img from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4550656 mediaptr 0x1000
Segment 1 load 005a39f0 size 399816 mediaptr 0x4589f0
Segment 2 load 00608000 size 184568 mediaptr 0x4bb000
Loading ramdisk 8307732 bytes @ 3f802000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.36+ (dave@mx3210) (gcc version 4.3.5 (GCC) ) #22 Sun Nov 14 16:17:49 EST 2010
unwind_init: start = 0x40493000, end = 0x404bb1d0, entries = 10269
WARNING: Out of order unwind entry! 00000000404940b0 and 00000000404940c0
WARNING: Out of order unwind entry! 00000000404940c0 and 00000000404940d0
WARNING: Out of order unwind entry! 0000000040494bf0 and 0000000040494c00
WARNING: Out of order unwind entry! 0000000040494c00 and 0000000040494c10
WARNING: Out of order unwind entry! 0000000040494eb0 and 0000000040494ec0
WARNING: Out of order unwind entry! 0000000040494ec0 and 0000000040494ed0
FP[0] enabled: Rev 1 Model 20
The 64-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00008870 00000491 00000000 00000002 3e0505e7352af711 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 20 rev 4 (0x00000284)
capabilities 0x35
model 9000/800/rp3440  
parisc_cache_init: Only equivalent aliasing supported!
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
 1) Start 0x0000000100000000 End 0x000000027fdfffff Size   6142 MB
 2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
Total Memory: 10238 MB
initrd: 7f802000-7ffee414
initrd: reserving 3f802000-3ffee414 (mem_max 27fe00000)
Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 2585095
Kernel command line: root=/dev/sda5 console=ttyS1 HOME=/ palo_kernel=2/vmlinux
PID hash table entries: 4096 (order: 3, 32768 bytes)
Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)
Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Memory: 10281572k/10483712k available (2891k kernel code, 202140k reserved, 1504k data, 184k init)
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x0000004140000000   (266240 MB)
      .init : 0x0000000040608000 - 0x0000000040636000   ( 184 kB)
      .data : 0x00000000403d2ca0 - 0x000000004054aec0   (1504 kB)
      .text : 0x0000000040100000 - 0x00000000403d2ca0   (2891 kB)
Hierarchical RCU implementation.
	RCU-based detection of stalled CPUs is disabled.
	Verbose stalled-CPUs detection is disabled.
NR_IRQS:128
Console: colour dummy device 160x64
------------------------
| Locking API testsuite:
----------------------------------------------------------------------------
                                 | spin |wlock |rlock |mutex | wsem | rsem |
  --------------------------------------------------------------------------
                     A-A deadlock:failed|failed|  ok  |failed|failed|failed|
                 A-B-B-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-B-C-C-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-C-A-B-C deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-B-C-C-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-C-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
                    double unlock:failed|failed|failed|  ok  |failed|failed|
                  initialize held:failed|failed|failed|failed|failed|failed|
                 bad unlock order:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
  --------------------------------------------------------------------------
              recursive read-lock:             |  ok  |             |failed|
           recursive read-lock #2:             |  ok  |             |failed|
            mixed read-write-lock:             |failed|             |failed|
            mixed write-read-lock:             |failed|             |failed|
  --------------------------------------------------------------------------
     hard-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     hard-irqs-on + irq-safe-A/21:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/21:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/12:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/21:failed|failed|  ok  |
         hard-safe-A + irqs-on/12:failed|failed|  ok  |
         soft-safe-A + irqs-on/12:failed|failed|  ok  |
         hard-safe-A + irqs-on/21:failed|failed|  ok  |
         soft-safe-A + irqs-on/21:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/321:failed|failed|  ok  |
      hard-irq lock-inversion/123:failed|failed|  ok  |
      soft-irq lock-inversion/123:failed|failed|  ok  |
      hard-irq lock-inversion/132:failed|failed|  ok  |
      soft-irq lock-inversion/132:failed|failed|  ok  |
      hard-irq lock-inversion/213:failed|failed|  ok  |
      soft-irq lock-inversion/213:failed|failed|  ok  |
      hard-irq lock-inversion/231:failed|failed|  ok  |
      soft-irq lock-inversion/231:failed|failed|  ok  |
      hard-irq lock-inversion/312:failed|failed|  ok  |
      soft-irq lock-inversion/312:failed|failed|  ok  |
      hard-irq lock-inversion/321:failed|failed|  ok  |
      soft-irq lock-inversion/321:failed|failed|  ok  |
      hard-irq read-recursion/123:  ok  |
      soft-irq read-recursion/123:  ok  |
      hard-irq read-recursion/132:  ok  |
      soft-irq read-recursion/132:  ok  |
      hard-irq read-recursion/213:  ok  |
      soft-irq read-recursion/213:  ok  |
      hard-irq read-recursion/231:  ok  |
      soft-irq read-recursion/231:  ok  |
      hard-irq read-recursion/312:  ok  |
      soft-irq read-recursion/312:  ok  |
      hard-irq read-recursion/321:  ok  |
      soft-irq read-recursion/321:  ok  |
--------------------------------------------------------
144 out of 218 testcases failed, as expected. |
----------------------------------------------------
Calibrating delay loop... 1597.44 BogoMIPS (lpj=3194880)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 256
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Storm Peak Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x887, 0x00004 }
2. Storm Peak Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x887, 0x00004 }
3. Storm Peak Slow at 0xfffffffffe798000 [152] { 0, 0x0, 0x887, 0x00004 }
4. Storm Peak Slow at 0xfffffffffe799000 [153] { 0, 0x0, 0x887, 0x00004 }
5. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
8. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
9. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
10. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
11. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
12. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
13. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
14. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 129 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 152 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 153 failed with error 1
CPU(s): 1 x PA8800 (Mako) at 800.006800 MHz
Setting cache flush threshold to 134c480 (1 CPUs online)
SBA found Pluto 2.3 at 0xfffffffffed00000
Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
Mercury version TR3.2 (0x32) found at 0xfffffffffed22000
Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
Mercury version TR3.2 (0x32) found at 0xfffffffffed28000
Mercury version TR3.2 (0x32) found at 0xfffffffffed2c000
Mercury version TR3.2 (0x32) found at 0xfffffffffed2e000
LBA: Truncating lmmio_space [fffffffff0000000/fffffffffecffffe] to [fffffffff0000000,fffffffffe77ffff]
powersw: Soft power switch support not available.
bio: create slab <bio-0> at 0
vgaarb: device added: PCI:0000:e0:02.0,decodes=io+mem,owns=io+mem,locks=none
vgaarb: loaded
Switching to clocksource cr16
NET: Registered protocol family 2
IP route cache hash table entries: 524288 (order: 10, 4194304 bytes)
TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
UDP hash table entries: 8192 (order: 6, 262144 bytes)
UDP-Lite hash table entries: 8192 (order: 6, 262144 bytes)
NET: Registered protocol family 1
Trying to unpack rootfs image as initramfs...
Freeing initrd memory: 8113k freed
Performance monitoring counters enabled for Storm Peak Slow
Initializing RT-Tester: OK
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
msgmni has been set to 20097
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
Linux agpgart interface v0.103
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 72) is a 16450
0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 72) is a 16550A
console [ttyS1] enabled, bootconsole disabled
console [ttyS1] enabled, bootconsole disabled
0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 72) is a 16550A
0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 72) is a 16550A
brd: module loaded
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
mice: PS/2 mouse device common for all mice
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
TCP cubic registered
rtc-generic rtc-generic: setting system clock to 2010-11-14 21:32:16 UTC (1289770336)
Freeing unused kernel memory: 184k freed
Loading, please wait...
mount: mounting none on /dev failed: No such device
W: devtmpfs not available, falling back to tmpfs for /dev
SCSI subsystem initialized
sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 69
sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
scsi 0:0:0:0: Direct-Access     FUJITSU  MAJ3364MC        HP12 PQ: 0 ANSI: 2
scsi target0:0:0: tagged command queuing enabled, command queue depth 16.
scsi target0:0:0: Beginning Domain Validation
scsi target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
scsi target0:0:0: Ending Domain Validation
sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 70
sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.2.3
tg3.c:v3.113 (August 2, 2010)
sd 0:0:0:0: [sda] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA
 sda: sda1 sda2 sda3 < sda5 sda6 sda7 >
sd 0:0:0:0: [sda] Attached SCSI disk
tg3 0000:20:02.0: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:30:6e:4b:16:4d
tg3 0000:20:02.0: eth0: attached PHY is 5701 (10/100/1000Base-T Ethernet) (WireSpeed[1])
tg3 0000:20:02.0: eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[0]
tg3 0000:20:02.0: eth0: dma_rwctrl[76ff2d0f] dma_mask[32-bit]
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... done.
EXT3-fs: barriers not enabled
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda5): mounted filesystem with writeback data mode
Begin: Running /scripts/local-bottom ... done.
done.
Begin: Running /scripts/init-bottom ... done.
INIT: version 2.88 booting
Using makefile-style concurrent boot in runlevel S.
Starting the hotplug events dispatcher: udevdudev[955]: starting version 163
.
Synthesizing the initial hotplug events...done.
Waiting for /dev to be fully populated...done.
Activating swap...Adding 979928k swap on /dev/sda6.  Priority:-1 extents:1 across:979928k 
done.
Checking root file system...fsck from util-linux-ng 2.17.2
/dev/sda5: clean, 46558/427392 files, 450409/1708906 blocks (check in 5 mounts)
done.
EXT3-fs (sda5): using internal journal
loop: module loaded
Cleaning up ifupdown....
Loading kernel modules...done.
Setting up networking....
Activating lvm and md swap...done.
Checking file systems...fsck from util-linux-ng 2.17.2
/dev/sda2: clean, 35/64256 files, 93165/128520 blocks
/dev/sda7: clean, 347218/1725136 files, 2210779/6895893 blocks (check in 3 mounts)
done.
Mounting local filesystems...EXT3-fs: barriers not enabled
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda7): using internal journal
EXT3-fs (sda7): mounted filesystem with writeback data mode
done.
Activating swapfile swap...done.
Cleaning up temporary files....
Setting kernel variables ...done.
Configuring network interfaces...done.
Starting portmap daemon....
Starting NFS common utilities: statdtg3 0000:20:02.0: eth0: Link is up at 100 Mbps, full duplex
tg3 0000:20:02.0: eth0: Flow control is off for TX and off for RX
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
.
Cleaning up temporary files....
Setting console screen modes and fonts.
cannot (un)set powersave mode
Running scripts in rcS.d/ took 19 seconds.
INIT: Entering runlevel: 2
Using makefile-style concurrent boot in runlevel 2.
Starting portmap daemon...Already running..
Starting NFS common utilities: statd.
Starting enhanced syslogd: rsyslogd.
Starting deferred execution scheduler: atd.
Starting system message bus: dbus.
Starting periodic command scheduler: cron.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
svc: failed to register lockdv1 RPC service (errno 225).
Starting internet superserver: inetd.
Exporting directories for NFS kernel daemon....
Starting NFS kernel daemon: nfsd mountd.
SpamAssassin Mail Filter Daemon: disabled, see /etc/default/spamassassin
------------[ cut here ]------------
kernel BUG at arch/parisc/kernel/unaligned.c:215!

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Not tainted
r00-03  000000000804000f 000000007ef35920 0000000040119780 000000007ef35c70
r04-07  000000001c533000 000000007ef355e0 000000007ef355e0 000000007ef35434
r08-11  000000007ef3542c 000000007d216cf8 000000007cfe13a8 00000000000000e8
r12-15  000000007cfe12c0 0000000000000000 0000000000000001 00000000b41aa62a
r16-19  000000007ef355e0 000000004059faa0 000000007f88e048 000000000c000000
r20-23  0000000024000000 000000007ef3542c 0000000000000000 0000000000000006
r24-27  000000007ef3541c 0000000000000001 000000000f3010f3 00000000405e9db0
r28-31  0000000000000000 000000007ef35c40 000000007ef35e90 000000000c0010c0
sr00-03  000000000000d800 000000000000d800 0000000000000000 000000000000d800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401219b8 00000000401219bc
 IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000
 CPU:        0   CR30: 000000007ef34000 CR31: 886904b488140042
 ORIG_R28: 0000000000000000
 IAOQ[0]: .L320+0x3c/0x70
 IAOQ[1]: .L320+0x40/0x70
 RP(r2): handle_interruption+0x2a8/0x940
Backtrace:
 [<0000000040119780>] handle_interruption+0x2a8/0x940
 [<000000001c57b460>] __tcp_v6_send_check+0xf0/0x1e8 [ipv6]
 [<000000001c57cd10>] tcp_v6_send_response+0x238/0x368 [ipv6]
 [<000000001c57cebc>] tcp_v6_send_reset+0x7c/0x218 [ipv6]
 [<000000001c57e4b8>] tcp_v6_rcv+0x3e8/0x980 [ipv6]
 [<000000001c54b0d0>] ip6_input_finish+0x188/0x438 [ipv6]
 [<000000001c54b40c>] ip6_input+0x8c/0x148 [ipv6]
 [<000000001c54bc78>] ipv6_rcv+0x3a8/0x480 [ipv6]
 [<0000000040342454>] __netif_receive_skb+0x3dc/0x4a0
 [<00000000403425c4>] process_backlog+0xac/0x188
 [<0000000040342a70>] net_rx_action+0x178/0x228
 [<000000004014d698>] __do_softirq+0x100/0x1f0
 [<0000000040115a1c>] do_softirq+0x6c/0x70
 [<000000004014db08>] local_bh_enable+0xc0/0xc8
 [<00000000403442c8>] dev_queue_xmit+0x138/0x458
 [<000000004034fc14>] neigh_resolve_output+0x154/0x310

Backtrace:
 [<0000000040118ba8>] show_stack+0x20/0x38
 [<00000000401120ac>] dump_stack+0x24/0x38
 [<00000000401193c4>] die_if_kernel+0x15c/0x270
 [<0000000040119d84>] handle_interruption+0x8ac/0x940
 [<00000000401219b8>] .L320+0x3c/0x70
 [<0000000040119780>] handle_interruption+0x2a8/0x940
 [<000000001c57b460>] __tcp_v6_send_check+0xf0/0x1e8 [ipv6]
 [<000000001c57cd10>] tcp_v6_send_response+0x238/0x368 [ipv6]
 [<000000001c57cebc>] tcp_v6_send_reset+0x7c/0x218 [ipv6]
 [<000000001c57e4b8>] tcp_v6_rcv+0x3e8/0x980 [ipv6]
 [<000000001c54b0d0>] ip6_input_finish+0x188/0x438 [ipv6]
 [<000000001c54b40c>] ip6_input+0x8c/0x148 [ipv6]
 [<000000001c54bc78>] ipv6_rcv+0x3a8/0x480 [ipv6]
 [<0000000040342454>] __netif_receive_skb+0x3dc/0x4a0
 [<00000000403425c4>] process_backlog+0xac/0x188
 [<0000000040342a70>] net_rx_action+0x178/0x228

Kernel panic - not syncing: Fatal exception in interrupt
Backtrace:
 [<0000000040118ba8>] show_stack+0x20/0x38
 [<00000000401120ac>] dump_stack+0x24/0x38
 [<000000004011219c>] panic+0xdc/0x380
 [<00000000401194ac>] die_if_kernel+0x244/0x270
 [<0000000040119d84>] handle_interruption+0x8ac/0x940
 [<00000000401219b8>] .L320+0x3c/0x70
 [<0000000040119780>] handle_interruption+0x2a8/0x940
 [<000000001c57b460>] __tcp_v6_send_check+0xf0/0x1e8 [ipv6]
 [<000000001c57cd10>] tcp_v6_send_response+0x238/0x368 [ipv6]
 [<000000001c57cebc>] tcp_v6_send_reset+0x7c/0x218 [ipv6]
 [<000000001c57e4b8>] tcp_v6_rcv+0x3e8/0x980 [ipv6]
 [<000000001c54b0d0>] ip6_input_finish+0x188/0x438 [ipv6]
 [<000000001c54b40c>] ip6_input+0x8c/0x148 [ipv6]
 [<000000001c54bc78>] ipv6_rcv+0x3a8/0x480 [ipv6]
 [<0000000040342454>] __netif_receive_skb+0x3dc/0x4a0
 [<00000000403425c4>] process_backlog+0xac/0x188


--AqsLC8rIMeq19msA--
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From - Thu Nov 08 21:06:30 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPMC in lba_pat_out8 on rp3440
Date: Sun, 14 Nov 2010 21:14:12 -0500
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On Sun, 14 Nov 2010, John David Anglin wrote:

> However, the system didn't fully boot.  There was another unaligned
> load in a ipv6 module.  I caught this because I still have the following
> BUG_ON in unaligned.c:

System boots 2.6.36+ without ipv6 module.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:30 2018
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X-Mozilla-Keys:                                                                                 

From - Thu Nov 08 21:06:30 2018
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Cc: Kyle McMartin <kyle@mcmartin.ca>, linux-parisc@vger.kernel.org
To: Helge Deller <deller@gmx.de>
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On Sun, Nov 14, 2010 at 09:59:59PM +0100, Helge Deller wrote:
> 
> I just got again a chance to boot up my b160L and 715/64 machines.
> 
> Both broke due to the IRQ changes. I did reverted all of your IRQ
> patches (based on current Linus head branch) and now they boot
> again.
> Basically they just hang during the SCSI initialization (timeouts
> while detectings discs).
> 
> So, there is something wrong for Lasi/GSC and Dino busses....
> 
> Any idea?
>

No, but I'll take a look, it's probably something simple and stupid that
I missed. :/

--Kyle
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPMC in lba_pat_out8 on rp3440
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On Sun, 14 Nov 2010, John David Anglin wrote:

> I've pretty much narrowed down where the unaligned load is.  It coming from
> init_page_buffers.  I had to disable inlining of this function to simplify 
> the code.
> 
> 00000000401f9698 <init_page_buffers>:
>     401f9698:   08 03 02 41     copy r3,r1
>     401f969c:   08 1e 02 43     copy sp,r3
>     401f96a0:   73 c1 00 88     std,ma r1,40(sp)
>     401f96a4:   0f 40 10 dc     ldd 0(r26),ret0
>     401f96a8:   c6 9c c0 e8     bb,>= ret0,14,401f9724 <init_page_buffers+0x8c>
>     401f96ac:   db 5c 0b fd     extrd,u r26,63,3,ret0
>     401f96b0:   bf 80 20 e8     cmpb,*<> r0,ret0,401f972c <init_page_buffers+0x94>
>     401f96b4:   53 54 00 20     ldd 10(r26),r20
>     401f96b8:   0f 40 10 dc     ldd 0(r26),ret0
>     401f96bc:   db 9a 0b 9f     extrd,u ret0,60,1,r26
>     401f96c0:   0b 40 28 a0     cmpclr,*= r0,r26,r0
>     401f96c4:   08 14 02 53     copy r20,r19
> ->  401f96c8:   0e 60 10 dc     ldd 0(r19),ret0

This hpmc seems to be a gcc miscompilation:
ii  gcc-4.3-hppa64 4.3.5-4        The GNU C compiler (cross compiler for hppa6

The hpmc is avoided by not inlining init_page_buffers().

Trying 4.4.5.  I believe 4.3.5-4 was from the initial lenny install.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/fs/buffer.c b/fs/buffer.c
index 3e7dca2..654128e 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -963,7 +963,7 @@ link_dev_buffers(struct page *page, struct buffer_head *head)
 /*
  * Initialise the state of a blockdev page's buffers.
  */ 
-static void
+static __attribute__((__noinline__)) void
 init_page_buffers(struct page *page, struct block_device *bdev,
 			sector_t block, int size)
 {
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: HPMC in lba_pat_out8 on rp3440
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On Sun, 14 Nov 2010, John David Anglin wrote:

> kernel BUG at arch/parisc/kernel/unaligned.c:215!
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001000000000000001111 Not tainted
> r00-03  000000000804000f 000000007ef35920 0000000040119780 000000007ef35c70
> r04-07  000000001c533000 000000007ef355e0 000000007ef355e0 000000007ef35434
> r08-11  000000007ef3542c 000000007d216cf8 000000007cfe13a8 00000000000000e8
> r12-15  000000007cfe12c0 0000000000000000 0000000000000001 00000000b41aa62a
> r16-19  000000007ef355e0 000000004059faa0 000000007f88e048 000000000c000000
> r20-23  0000000024000000 000000007ef3542c 0000000000000000 0000000000000006
> r24-27  000000007ef3541c 0000000000000001 000000000f3010f3 00000000405e9db0
> r28-31  0000000000000000 000000007ef35c40 000000007ef35e90 000000000c0010c0
> sr00-03  000000000000d800 000000000000d800 0000000000000000 000000000000d800
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401219b8 00000000401219bc
>  IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000
>  CPU:        0   CR30: 000000007ef34000 CR31: 886904b488140042
>  ORIG_R28: 0000000000000000
>  IAOQ[0]: .L320+0x3c/0x70
>  IAOQ[1]: .L320+0x40/0x70
>  RP(r2): handle_interruption+0x2a8/0x940
> Backtrace:
>  [<0000000040119780>] handle_interruption+0x2a8/0x940
>  [<000000001c57b460>] __tcp_v6_send_check+0xf0/0x1e8 [ipv6]
>  [<000000001c57cd10>] tcp_v6_send_response+0x238/0x368 [ipv6]
>  [<000000001c57cebc>] tcp_v6_send_reset+0x7c/0x218 [ipv6]
>  [<000000001c57e4b8>] tcp_v6_rcv+0x3e8/0x980 [ipv6]
>  [<000000001c54b0d0>] ip6_input_finish+0x188/0x438 [ipv6]
>  [<000000001c54b40c>] ip6_input+0x8c/0x148 [ipv6]
>  [<000000001c54bc78>] ipv6_rcv+0x3a8/0x480 [ipv6]
>  [<0000000040342454>] __netif_receive_skb+0x3dc/0x4a0
>  [<00000000403425c4>] process_backlog+0xac/0x188
>  [<0000000040342a70>] net_rx_action+0x178/0x228
>  [<000000004014d698>] __do_softirq+0x100/0x1f0
>  [<0000000040115a1c>] do_softirq+0x6c/0x70
>  [<000000004014db08>] local_bh_enable+0xc0/0xc8
>  [<00000000403442c8>] dev_queue_xmit+0x138/0x458
>  [<000000004034fc14>] neigh_resolve_output+0x154/0x310

This ldd alignment error is not fixed using 4.4.5, so it is likely a
kernel bug.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Nov 16, 2010 at 09:21:41PM -0500, John David Anglin wrote:
> > kernel BUG at arch/parisc/kernel/unaligned.c:215!
...
> This ldd alignment error is not fixed using 4.4.5, so it is likely a
> kernel bug.

I agree. The kernel is expected to emulate/handle unaligned loads/stores.

I thought we had all that misaligned access handlers working years ago and
somewhere probably have a user space program to test it. Oh...ldd won't be
user space since we don't have a PA2.0 64-bit user space. LDD support
can't be as well tested.

On that note, can you try a 32-bit kernel? (SMP maybe)

grant
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Subject: Re: HPMC in lba_pat_out8 on rp3440
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On Tue, Nov 16, 2010 at 10:22:18PM -0700, Grant Grundler wrote:
> I agree. The kernel is expected to emulate/handle unaligned loads/stores.
> 
> I thought we had all that misaligned access handlers working years ago and
> somewhere probably have a user space program to test it. Oh...ldd won't be
> user space since we don't have a PA2.0 64-bit user space. LDD support
> can't be as well tested.
> 
> On that note, can you try a 32-bit kernel? (SMP maybe)
> 

We really shouldn't be fixing up unaligned access in the kernel, since
we can just fix the code... If ipv6 is causing them, there must be some
missing define that's getting defaulted to something un-padded,
otherwise sparc wouldn't work at all (it definitely does /not/ fix
unalignd accesses, period.)

--Kyle
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From: Grant Grundler <grundler@parisc-linux.org>
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On Wed, Nov 17, 2010 at 12:26:42AM -0500, Kyle McMartin wrote:
> On Tue, Nov 16, 2010 at 10:22:18PM -0700, Grant Grundler wrote:
> > I agree. The kernel is expected to emulate/handle unaligned loads/stores.
> > 
> > I thought we had all that misaligned access handlers working years ago and
> > somewhere probably have a user space program to test it. Oh...ldd won't be
> > user space since we don't have a PA2.0 64-bit user space. LDD support
> > can't be as well tested.
> > 
> > On that note, can you try a 32-bit kernel? (SMP maybe)
> > 
> 
> We really shouldn't be fixing up unaligned access in the kernel, since
> we can just fix the code... If ipv6 is causing them, there must be some
> missing define that's getting defaulted to something un-padded,
> otherwise sparc wouldn't work at all (it definitely does /not/ fix
> unalignd accesses, period.)

I agree but thought davem refused patches to use get/put_unaligned macros
in networking code. Searching for "davem ulog put_unaligned" shows him
accepting such patches. So this is clearly the right path to pursue.

thanks,
grant
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Subject: Re: HPMC in lba_pat_out8 on rp3440
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> On Wed, Nov 17, 2010 at 12:26:42AM -0500, Kyle McMartin wrote:
> > On Tue, Nov 16, 2010 at 10:22:18PM -0700, Grant Grundler wrote:
> > > I agree. The kernel is expected to emulate/handle unaligned loads/stores.
> > > 
> > > I thought we had all that misaligned access handlers working years ago and
> > > somewhere probably have a user space program to test it. Oh...ldd won't be
> > > user space since we don't have a PA2.0 64-bit user space. LDD support
> > > can't be as well tested.
> > > 
> > > On that note, can you try a 32-bit kernel? (SMP maybe)
> > > 
> > 
> > We really shouldn't be fixing up unaligned access in the kernel, since
> > we can just fix the code... If ipv6 is causing them, there must be some
> > missing define that's getting defaulted to something un-padded,
> > otherwise sparc wouldn't work at all (it definitely does /not/ fix
> > unalignd accesses, period.)
> 
> I agree but thought davem refused patches to use get/put_unaligned macros
> in networking code. Searching for "davem ulog put_unaligned" shows him
> accepting such patches. So this is clearly the right path to pursue.

I also agree that the kernel shouldn't fix unaligned accesses occuring
in the kernel.  It allows for sloppy coding and the fixup can be a
major performance hit on strict alignment machines like sparc and hppa.

It would appear handle_unaligned can't always fixup kernel accesses.
At least, emulate_ldd causes a hpmc attempting to fixup the ldd in
init_page_buffers.  This may be because this is a wrong code error
and the address is in someway invalid.  Maybe more address checking
is needed.

The unaligned access in __tcp_v6_send_check seems to be caused by
saddr being misaligned.  It's possible daddr is also misaligned.
I was going to add a BUG_ON or two to try and get more info.  Don't
know if emulate_ldd can fix this access.

In the case of ipv4, it's possible to pad/start packets in a manner
to make it easier to access the ip header.  Don't know about ipv6.
This may be what Kyle is suggesting.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Kyle McMartin <kyle@mcmartin.ca>
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On Wed, Nov 17, 2010 at 09:38:08AM -0500, John David Anglin wrote:
> I also agree that the kernel shouldn't fix unaligned accesses occuring
> in the kernel.  It allows for sloppy coding and the fixup can be a
> major performance hit on strict alignment machines like sparc and hppa.
> 
> It would appear handle_unaligned can't always fixup kernel accesses.
> At least, emulate_ldd causes a hpmc attempting to fixup the ldd in
> init_page_buffers.  This may be because this is a wrong code error
> and the address is in someway invalid.  Maybe more address checking
> is needed.
> 

I'll take a look at emulate_ldd. It's entirely possible that it's broken
and we just haven't noticed because we would so rarely hit one in
userspace. (The only PA2.0 code I know of was the code Thibaut wrote to
do ffmpeg in pa2.0 asm. I imagine something like that wouldn't take
unaligned traps if performance was desired... ;-)

> The unaligned access in __tcp_v6_send_check seems to be caused by
> saddr being misaligned.  It's possible daddr is also misaligned.
> I was going to add a BUG_ON or two to try and get more info.  Don't
> know if emulate_ldd can fix this access.
> 
> In the case of ipv4, it's possible to pad/start packets in a manner
> to make it easier to access the ip header.  Don't know about ipv6.
> This may be what Kyle is suggesting.
> 

Right, I'll take a look at what other arches do and get back to you.

No arch should be taking unaligned traps in the packet recv path, as
that would just add unimaginable amounts of overhead...

--Kyle

> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
> 
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On Tue, 2010-11-16 at 22:42 -0700, Grant Grundler wrote:
> On Wed, Nov 17, 2010 at 12:26:42AM -0500, Kyle McMartin wrote:
> > On Tue, Nov 16, 2010 at 10:22:18PM -0700, Grant Grundler wrote:
> > > I agree. The kernel is expected to emulate/handle unaligned loads/stores.
> > > 
> > > I thought we had all that misaligned access handlers working years ago and
> > > somewhere probably have a user space program to test it. Oh...ldd won't be
> > > user space since we don't have a PA2.0 64-bit user space. LDD support
> > > can't be as well tested.
> > > 
> > > On that note, can you try a 32-bit kernel? (SMP maybe)
> > > 
> > 
> > We really shouldn't be fixing up unaligned access in the kernel, since
> > we can just fix the code... If ipv6 is causing them, there must be some
> > missing define that's getting defaulted to something un-padded,
> > otherwise sparc wouldn't work at all (it definitely does /not/ fix
> > unalignd accesses, period.)
> 
> I agree but thought davem refused patches to use get/put_unaligned macros
> in networking code. Searching for "davem ulog put_unaligned" shows him
> accepting such patches. So this is clearly the right path to pursue.

DaveM's argument is that these are exceptions in packet handling rather
than the norm.  As you know, using unaligned on parisc (and sparc) does
byte loads, which is horrifically inefficient in a critical network
path.  So it's faster to process the exceptions periodically than
penalise the fast path.

James


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To: grundler@parisc-linux.org (Grant Grundler)
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> On that note, can you try a 32-bit kernel? (SMP maybe)

rp3440 doesn't support a 32-bit kernel.  I don't have a 32-bit SMP
machine.  I did try a UP 2.6.36 kernel on my c3750.  It crashed doing
its first gcc build.  Don't know why.  My 2.6.34.7 build is stable.

Now that I have a UP 2.6.36 kernel running on the rp3440, I plan
to retry a SMP kernel with same config.  Possibly the issue that
started the thread was another miscompilation.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: =?ISO-8859-1?Q?Thibaut_VAR=C8NE?= <T-Bone@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPMC in lba_pat_out8 on rp3440
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Le 17 nov. 10 =E0 16:33, Kyle McMartin a =E9crit :
> On Wed, Nov 17, 2010 at 09:38:08AM -0500, John David Anglin wrote:
>> I also agree that the kernel shouldn't fix unaligned accesses =20
>> occuring
>> in the kernel.  It allows for sloppy coding and the fixup can be a
>> major performance hit on strict alignment machines like sparc and =20
>> hppa.
>>
>> It would appear handle_unaligned can't always fixup kernel accesses.
>> At least, emulate_ldd causes a hpmc attempting to fixup the ldd in
>> init_page_buffers.  This may be because this is a wrong code error
>> and the address is in someway invalid.  Maybe more address checking
>> is needed.
>>
>
> I'll take a look at emulate_ldd. It's entirely possible that it's =20
> broken
> and we just haven't noticed because we would so rarely hit one in
> userspace. (The only PA2.0 code I know of was the code Thibaut wrote =
=20
> to
> do ffmpeg in pa2.0 asm. I imagine something like that wouldn't take
> unaligned traps if performance was desired... ;-)

Don't imagine too much when it comes to me, you'll always be =20
surprised ;-)
Since my initial code (which stayed at this stage, for lack of any =20
field use) was only trying to get the asm right in the first place =20
(you can see the code here, btw: http://www.parisc-linux.org/~varenet/d=
sputils_parisc.c.html=20
  ) I didn't bother doing unaligned accesses handling when I first =20
tried it, so it's actually very likely I did hit emulate_ldd quite a =20
lot. Fun fact, despite lots of unaligned accesses, that code performed =
=20
on par (and even slightly faster, IIRC) with the C implementation :^)

HTH

T-Bone

--=20
Thibaut VAR=C8NE
http://www.parisc-linux.org/~varenet/

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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: HPMC in lba_pat_out8 on rp3440
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On Tue, 16 Nov 2010, Grant Grundler wrote:

> On that note, can you try a 32-bit kernel? (SMP maybe)

The attached SMP config boots successfully when the kernel is
built with gcc-4.4-hppa64 4.4.5-2.  Given the 4.3 is EOL, I don't
think it is worth the effort to find what's wrong and fix it.

A few features are explicitly disabled:

CONFIG_IPV6: Unaligned load
CONFIG_IGBVF: See http://www.mail-archive.com/e1000-devel@lists.sourceforge.net/msg03308.html

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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Content-Disposition: attachment; filename="config-2.6.36+"

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.36
# Wed Nov 17 21:02:53 2010
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_LOW_RES=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_IRQ_PER_CPU=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=64
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=17
# CONFIG_CGROUPS is not set
# CONFIG_SYSFS_DEPRECATED_V2 is not set
CONFIG_RELAY=y
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_LZO=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# CONFIG_PERF_COUNTERS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
CONFIG_COMPAT_BRK=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_USE_GENERIC_SMP_HELPERS=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
CONFIG_INLINE_SPIN_UNLOCK=y
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
CONFIG_INLINE_READ_UNLOCK=y
# CONFIG_INLINE_READ_UNLOCK_BH is not set
CONFIG_INLINE_READ_UNLOCK_IRQ=y
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
CONFIG_INLINE_WRITE_UNLOCK=y
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
# CONFIG_MUTEX_SPIN_ON_OWNER is not set
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_COMPAT=y
CONFIG_NR_CPUS=32

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
# CONFIG_GSC_WAX is not set
# CONFIG_EISA is not set
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
CONFIG_PCI_IOV=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
# CONFIG_CHASSIS_LCD_LED is not set
# CONFIG_PDC_CHASSIS is not set
# CONFIG_PDC_CHASSIS_WARN is not set
# CONFIG_PDC_STABLE is not set

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=m
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=m
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
CONFIG_XFRM_SUB_POLICY=y
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NETFILTER_TPROXY is not set
CONFIG_NETFILTER_XTABLES=m

#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m

#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
# CONFIG_NETFILTER_XT_TARGET_TEE is not set
# CONFIG_NETFILTER_XT_TARGET_TRACE is not set
# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m

#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CPU=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set
CONFIG_NETFILTER_XT_MATCH_HL=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
# CONFIG_NETFILTER_XT_MATCH_OSF is not set
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set

#
# IP: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV4 is not set
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_IP_DCCP=m
CONFIG_INET_DCCP_DIAG=m

#
# DCCP CCIDs Configuration (EXPERIMENTAL)
#
# CONFIG_IP_DCCP_CCID2_DEBUG is not set
CONFIG_IP_DCCP_CCID3=y
# CONFIG_IP_DCCP_CCID3_DEBUG is not set
CONFIG_IP_DCCP_CCID3_RTO=100
CONFIG_IP_DCCP_TFRC_LIB=y

#
# DCCP Kernel Hacking
#
# CONFIG_IP_DCCP_DEBUG is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_MSG is not set
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_HMAC_NONE is not set
CONFIG_SCTP_HMAC_SHA1=y
# CONFIG_SCTP_HMAC_MD5 is not set
# CONFIG_RDS is not set
CONFIG_TIPC=m
# CONFIG_TIPC_ADVANCED is not set
# CONFIG_TIPC_DEBUG is not set
# CONFIG_ATM is not set
CONFIG_L2TP=m
# CONFIG_L2TP_DEBUGFS is not set
# CONFIG_L2TP_V3 is not set
CONFIG_STP=m
CONFIG_GARP=m
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
# CONFIG_DECNET is not set
CONFIG_LLC=m
CONFIG_LLC2=m
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
CONFIG_NET_CLS_ROUTE=y
# CONFIG_DCB is not set
CONFIG_RPS=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_WIRELESS=y
# CONFIG_CFG80211 is not set
# CONFIG_LIB80211 is not set

#
# CFG80211 needs to be enabled for MAC80211
#

#
# Some wireless drivers require a rate control algorithm
#
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_DEVTMPFS is not set
# CONFIG_STANDALONE is not set
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
# CONFIG_PARPORT_SERIAL is not set
CONFIG_PARPORT_PC_FIFO=y
CONFIG_PARPORT_PC_SUPERIO=y
CONFIG_PARPORT_GSC=m
# CONFIG_PARPORT_AX88796 is not set
# CONFIG_PARPORT_1284 is not set
CONFIG_PARPORT_NOT_PC=y
CONFIG_BLK_DEV=y
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_UMEM=m
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m

#
# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
#
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_SX8=m
CONFIG_BLK_DEV_UB=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=6144
# CONFIG_BLK_DEV_XIP is not set
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
CONFIG_CDROM_PKTCDVD_WCACHE=y
CONFIG_ATA_OVER_ETH=m
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_AD525X_DPOT is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
CONFIG_ENCLOSURE_SERVICES=m
# CONFIG_HP_ILO is not set
# CONFIG_ISL29003 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1780 is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_BMP085 is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
CONFIG_EEPROM_AT24=m
CONFIG_EEPROM_LEGACY=m
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=m
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=m
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m
# CONFIG_SCSI_MULTI_LUN is not set
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_HOST_SMP=y
CONFIG_SCSI_SAS_LIBSAS_DEBUG=y
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
CONFIG_ISCSI_TCP=m
CONFIG_ISCSI_BOOT_SYSFS=m
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
CONFIG_BLK_DEV_3W_XXXX_RAID=m
CONFIG_SCSI_HPSA=m
CONFIG_SCSI_3W_9XXX=m
CONFIG_SCSI_3W_SAS=m
# CONFIG_SCSI_ACARD is not set
CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=32
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
CONFIG_AIC7XXX_DEBUG_ENABLE=y
CONFIG_AIC7XXX_DEBUG_MASK=0
CONFIG_AIC7XXX_REG_PRETTY_PRINT=y
CONFIG_SCSI_AIC7XXX_OLD=m
CONFIG_SCSI_AIC79XX=m
CONFIG_AIC79XX_CMDS_PER_DEVICE=32
CONFIG_AIC79XX_RESET_DELAY_MS=15000
CONFIG_AIC79XX_DEBUG_ENABLE=y
CONFIG_AIC79XX_DEBUG_MASK=0
CONFIG_AIC79XX_REG_PRETTY_PRINT=y
CONFIG_SCSI_AIC94XX=m
CONFIG_AIC94XX_DEBUG=y
CONFIG_SCSI_MVSAS=m
CONFIG_SCSI_MVSAS_DEBUG=y
CONFIG_SCSI_DPT_I2O=m
# CONFIG_SCSI_ADVANSYS is not set
CONFIG_SCSI_ARCMSR=m
CONFIG_MEGARAID_NEWGEN=y
CONFIG_MEGARAID_MM=m
CONFIG_MEGARAID_MAILBOX=m
CONFIG_MEGARAID_LEGACY=m
CONFIG_MEGARAID_SAS=m
CONFIG_SCSI_MPT2SAS=m
CONFIG_SCSI_MPT2SAS_MAX_SGE=128
# CONFIG_SCSI_MPT2SAS_LOGGING is not set
# CONFIG_SCSI_HPTIOP is not set
CONFIG_LIBFC=m
CONFIG_LIBFCOE=m
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
CONFIG_SCSI_IPS=m
# CONFIG_SCSI_INITIO is not set
CONFIG_SCSI_INIA100=m
CONFIG_SCSI_PPA=m
CONFIG_SCSI_IMM=m
# CONFIG_SCSI_IZIP_EPP16 is not set
# CONFIG_SCSI_IZIP_SLOW_CTR is not set
CONFIG_SCSI_LASI700=m
CONFIG_53C700_LE_ON_BE=y
CONFIG_SCSI_STEX=m
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
CONFIG_SCSI_ZALON=m
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
CONFIG_SCSI_QLOGIC_1280=m
CONFIG_SCSI_QLA_FC=m
CONFIG_SCSI_QLA_ISCSI=m
CONFIG_SCSI_LPFC=m
# CONFIG_SCSI_LPFC_DEBUG_FS is not set
CONFIG_SCSI_DC395x=m
# CONFIG_SCSI_DC390T is not set
CONFIG_SCSI_DEBUG=m
# CONFIG_SCSI_PMCRAID is not set
CONFIG_SCSI_PM8001=m
# CONFIG_SCSI_SRP is not set
CONFIG_SCSI_BFA_FC=m
CONFIG_SCSI_DH=m
CONFIG_SCSI_DH_RDAC=m
CONFIG_SCSI_DH_HP_SW=m
CONFIG_SCSI_DH_EMC=m
CONFIG_SCSI_DH_ALUA=m
CONFIG_SCSI_OSD_INITIATOR=m
# CONFIG_SCSI_OSD_ULD is not set
CONFIG_SCSI_OSD_DPRINT_SENSE=1
# CONFIG_SCSI_OSD_DEBUG is not set
# CONFIG_ATA is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
# CONFIG_MD_RAID456 is not set
CONFIG_MD_MULTIPATH=m
CONFIG_MD_FAULTY=m
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
# CONFIG_DM_LOG_USERSPACE is not set
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
# CONFIG_DM_MULTIPATH_QL is not set
# CONFIG_DM_MULTIPATH_ST is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_UEVENT is not set
CONFIG_FUSION=y
CONFIG_FUSION_SPI=m
CONFIG_FUSION_FC=m
CONFIG_FUSION_SAS=m
CONFIG_FUSION_MAX_SGE=128
CONFIG_FUSION_CTL=m
# CONFIG_FUSION_LOGGING is not set

#
# IEEE 1394 (FireWire) support
#

#
# You can enable one or both FireWire driver stacks.
#

#
# The newer stack is recommended.
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_BONDING=m
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
# CONFIG_BROADCOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
# CONFIG_LASI_82596 is not set
CONFIG_HAPPYMEAL=m
# CONFIG_SUNGEM is not set
CONFIG_CASSINI=m
CONFIG_NET_VENDOR_3COM=y
CONFIG_VORTEX=m
# CONFIG_TYPHOON is not set
# CONFIG_ETHOC is not set
# CONFIG_DNET is not set
CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_DE2104X_DSL=0
CONFIG_TULIP=m
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_TULIP_NAPI is not set
CONFIG_DE4X5=m
CONFIG_WINBOND_840=m
# CONFIG_DM9102 is not set
CONFIG_ULI526X=m
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
CONFIG_PCNET32=m
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_B44=m
CONFIG_B44_PCI_AUTOSELECT=y
CONFIG_B44_PCICORE_AUTOSELECT=y
CONFIG_B44_PCI=y
CONFIG_FORCEDETH=m
CONFIG_E100=m
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_8139CP is not set
CONFIG_8139TOO=m
# CONFIG_8139TOO_PIO is not set
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_OLD_RX_RESET is not set
# CONFIG_R6040 is not set
CONFIG_SIS900=m
CONFIG_EPIC100=m
# CONFIG_SMSC9420 is not set
CONFIG_SUNDANCE=m
CONFIG_SUNDANCE_MMIO=y
CONFIG_TLAN=m
# CONFIG_KS8851_MLL is not set
CONFIG_VIA_RHINE=m
CONFIG_VIA_RHINE_MMIO=y
# CONFIG_SC92031 is not set
# CONFIG_NET_POCKET is not set
# CONFIG_ATL2 is not set
CONFIG_NETDEV_1000=y
CONFIG_ACENIC=m
# CONFIG_ACENIC_OMIT_TIGON_I is not set
# CONFIG_DL2K is not set
CONFIG_E1000=m
# CONFIG_E1000E is not set
# CONFIG_IP1000 is not set
CONFIG_IGB=m
# CONFIG_IGBVF is not set
# CONFIG_NS83820 is not set
CONFIG_HAMACHI=m
CONFIG_YELLOWFIN=m
# CONFIG_R8169 is not set
# CONFIG_SIS190 is not set
CONFIG_SKGE=m
# CONFIG_SKGE_DEBUG is not set
# CONFIG_SKY2 is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_TIGON3=m
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_JME is not set
CONFIG_NETDEV_10000=y
CONFIG_MDIO=m
CONFIG_CHELSIO_T1=m
# CONFIG_CHELSIO_T1_1G is not set
CONFIG_CHELSIO_T3_DEPENDS=y
# CONFIG_CHELSIO_T3 is not set
CONFIG_CHELSIO_T4_DEPENDS=y
# CONFIG_CHELSIO_T4 is not set
CONFIG_CHELSIO_T4VF_DEPENDS=y
# CONFIG_CHELSIO_T4VF is not set
CONFIG_ENIC=m
# CONFIG_IXGBE is not set
# CONFIG_IXGB is not set
CONFIG_S2IO=m
# CONFIG_VXGE is not set
CONFIG_MYRI10GE=m
# CONFIG_NETXEN_NIC is not set
# CONFIG_NIU is not set
CONFIG_MLX4_EN=m
CONFIG_MLX4_CORE=m
CONFIG_MLX4_DEBUG=y
# CONFIG_TEHUTI is not set
# CONFIG_BNX2X is not set
# CONFIG_QLCNIC is not set
CONFIG_QLGE=m
CONFIG_SFC=m
# CONFIG_BE2NET is not set
# CONFIG_TR is not set
CONFIG_WLAN=y
# CONFIG_ATMEL is not set
# CONFIG_PRISM54 is not set
# CONFIG_USB_ZD1201 is not set
# CONFIG_HOSTAP is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_WAN is not set

#
# CAIF transport drivers
#
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPP_FILTER is not set
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
# CONFIG_PPPOL2TP is not set
# CONFIG_SLIP is not set
CONFIG_SLHC=m
# CONFIG_NET_FC is not set
CONFIG_NETCONSOLE=m
# CONFIG_NETCONSOLE_DYNAMIC is not set
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=m
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_ATKBD_HP_KEYCODES is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_TCA6416 is not set
CONFIG_KEYBOARD_HIL_OLD=m
CONFIG_KEYBOARD_HIL=m
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=m
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_SERIAL=m
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_ATI_REMOTE is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
CONFIG_INPUT_CM109=m
CONFIG_INPUT_UINPUT=m
CONFIG_HP_SDC_RTC=m
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_ADXL34X is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=m
CONFIG_SERIO_PARKBD=m
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=y
CONFIG_HIL_MLC=y
CONFIG_SERIO_PCIPS2=m
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_DEVKMEM=y
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_N_GSM is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
# CONFIG_SERIAL_8250_MANY_PORTS is not set
# CONFIG_SERIAL_8250_SHARE_IRQ is not set
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MFD_HSU is not set
# CONFIG_SERIAL_MUX is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
CONFIG_RAW_DRIVER=m
CONFIG_MAX_RAW_DEVS=256
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_RAMOOPS is not set
CONFIG_I2C=m
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set

#
# PPS support
#
# CONFIG_PPS is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_SENSORS_LIS3_I2C is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
# CONFIG_SSB_B43_PCI_BRIDGE is not set
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y
CONFIG_MFD_SUPPORT=y
CONFIG_MFD_CORE=m
# CONFIG_MFD_SM501 is not set
CONFIG_HTC_PASIC3=m
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_PARISC=m
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
# CONFIG_FB_CFB_FILLRECT is not set
# CONFIG_FB_CFB_COPYAREA is not set
# CONFIG_FB_CFB_IMAGEBLIT is not set
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_STI is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_TMIO is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
# CONFIG_STI_CONSOLE is not set
CONFIG_FONTS=y
# CONFIG_FONT_8x8 is not set
CONFIG_FONT_8x16=y
# CONFIG_FONT_6x11 is not set
# CONFIG_FONT_7x14 is not set
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
# CONFIG_FONT_MINI_4x6 is not set
# CONFIG_FONT_SUN8x16 is not set
# CONFIG_FONT_SUN12x22 is not set
# CONFIG_FONT_10x18 is not set
# CONFIG_LOGO is not set
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
CONFIG_SOUND_OSS_CORE_PRECLAIM=y
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
CONFIG_SND_VERBOSE_PRINTK=y
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_RAWMIDI_SEQ=m
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
# CONFIG_SND_PORTMAN2X4 is not set
# CONFIG_SND_AC97_POWER_SAVE is not set
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
CONFIG_SND_HDSPM=m
# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
CONFIG_SND_USB=y
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_UA101 is not set
# CONFIG_SND_USB_CAIAQ is not set
CONFIG_SND_GSC=y
CONFIG_SND_HARMONY=m
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HIDRAW is not set

#
# USB Input Devices
#
CONFIG_USB_HID=m
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set

#
# Special HID drivers
#
# CONFIG_HID_3M_PCT is not set
CONFIG_HID_A4TECH=m
# CONFIG_HID_ACRUX_FF is not set
CONFIG_HID_APPLE=m
CONFIG_HID_BELKIN=m
# CONFIG_HID_CANDO is not set
CONFIG_HID_CHERRY=m
CONFIG_HID_CHICONY=m
# CONFIG_HID_PRODIKEYS is not set
CONFIG_HID_CYPRESS=m
CONFIG_HID_DRAGONRISE=m
# CONFIG_DRAGONRISE_FF is not set
# CONFIG_HID_EGALAX is not set
CONFIG_HID_EZKEY=m
CONFIG_HID_KYE=m
CONFIG_HID_GYRATION=m
CONFIG_HID_TWINHAN=m
CONFIG_HID_KENSINGTON=m
CONFIG_HID_LOGITECH=m
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
CONFIG_HID_MICROSOFT=m
# CONFIG_HID_MOSART is not set
CONFIG_HID_MONTEREY=m
CONFIG_HID_NTRIG=m
CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=m
# CONFIG_PANTHERLORD_FF is not set
CONFIG_HID_PETALYNX=m
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_QUANTA is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_ROCCAT_KONE is not set
CONFIG_HID_SAMSUNG=m
CONFIG_HID_SONY=m
# CONFIG_HID_STANTUM is not set
CONFIG_HID_SUNPLUS=m
CONFIG_HID_GREENASIA=m
# CONFIG_GREENASIA_FF is not set
CONFIG_HID_SMARTJOYPLUS=m
# CONFIG_SMARTJOYPLUS_FF is not set
CONFIG_HID_TOPSEED=m
CONFIG_HID_THRUSTMASTER=m
# CONFIG_THRUSTMASTER_FF is not set
CONFIG_HID_ZEROPLUS=m
# CONFIG_ZEROPLUS_FF is not set
# CONFIG_HID_ZYDACRON is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=m
# CONFIG_USB_DEBUG is not set
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
# CONFIG_USB_DEVICEFS is not set
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_MON=m
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
# CONFIG_USB_EHCI_HCD is not set
# CONFIG_USB_OXU210HP_HCD is not set
CONFIG_USB_ISP116X_HCD=m
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_OHCI_HCD is not set
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_WHCI_HCD is not set
# CONFIG_USB_HWA_HCD is not set

#
# Enable Host or Gadget support to see Inventra options
#

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=m
CONFIG_USB_EMI26=m
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
CONFIG_USB_LEGOTOWER=m
# CONFIG_USB_LCD is not set
CONFIG_USB_LED=m
# CONFIG_USB_CYPRESS_CY7C63 is not set
CONFIG_USB_CYTHERM=m
CONFIG_USB_IDMOUSE=m
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
CONFIG_USB_LD=m
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
# CONFIG_NOP_USB_XCEIV is not set
CONFIG_UWB=m
CONFIG_UWB_HWA=m
CONFIG_UWB_WHCI=m
# CONFIG_UWB_WLP is not set
CONFIG_UWB_I1480U=m
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
CONFIG_UIO=m
# CONFIG_UIO_CIF is not set
# CONFIG_UIO_PDRV is not set
# CONFIG_UIO_PDRV_GENIRQ is not set
# CONFIG_UIO_AEC is not set
# CONFIG_UIO_SERCOS3 is not set
# CONFIG_UIO_PCI_GENERIC is not set
# CONFIG_UIO_NETX is not set
# CONFIG_STAGING is not set

#
# File systems
#
CONFIG_EXT2_FS=m
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=m
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_XATTR=y
# CONFIG_EXT3_FS_POSIX_ACL is not set
# CONFIG_EXT3_FS_SECURITY is not set
CONFIG_EXT4_FS=m
CONFIG_EXT4_FS_XATTR=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD=m
# CONFIG_JBD_DEBUG is not set
CONFIG_JBD2=m
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=m
CONFIG_REISERFS_FS=m
# CONFIG_REISERFS_CHECK is not set
CONFIG_REISERFS_PROC_INFO=y
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_XFS_FS=m
# CONFIG_XFS_QUOTA is not set
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
# CONFIG_XFS_DEBUG is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_NILFS2_FS=m
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_QUOTA=y
# CONFIG_QUOTA_NETLINK_INTERFACE is not set
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=m
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
# CONFIG_AUTOFS_FS is not set
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
# CONFIG_CUSE is not set

#
# Caches
#
CONFIG_FSCACHE=m
# CONFIG_FSCACHE_STATS is not set
# CONFIG_FSCACHE_HISTOGRAM is not set
# CONFIG_FSCACHE_DEBUG is not set
# CONFIG_FSCACHE_OBJECT_LIST is not set
CONFIG_CACHEFILES=m
# CONFIG_CACHEFILES_DEBUG is not set
# CONFIG_CACHEFILES_HISTOGRAM is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_LOGFS is not set
CONFIG_CRAMFS=y
# CONFIG_SQUASHFS is not set
CONFIG_VXFS_FS=m
CONFIG_MINIX_FS=m
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
CONFIG_ROMFS_FS=m
CONFIG_ROMFS_BACKED_BY_BLOCK=y
CONFIG_ROMFS_ON_BLOCK=y
CONFIG_SYSV_FS=m
CONFIG_UFS_FS=m
# CONFIG_UFS_FS_WRITE is not set
# CONFIG_UFS_DEBUG is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_FSCACHE is not set
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
# CONFIG_NFSD_V4 is not set
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=m
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_RPCSEC_GSS_SPKM3 is not set
# CONFIG_SMB_FS is not set
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_LOCKUP_DETECTOR=y
# CONFIG_HARDLOCKUP_DETECTOR is not set
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
CONFIG_SCHED_DEBUG=y
CONFIG_SCHEDSTATS=y
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
CONFIG_DEBUG_SLAB=y
CONFIG_DEBUG_SLAB_LEAK=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_PI_LIST=y
CONFIG_RT_MUTEX_TESTER=y
# CONFIG_DEBUG_SPINLOCK is not set
CONFIG_DEBUG_MUTEXES=y
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
CONFIG_FRAME_POINTER=y
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
CONFIG_DEBUG_BLOCK_EXT_DEVT=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_LKDTM is not set
# CONFIG_CPU_NOTIFIER_ERROR_INJECT is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_LATENCYTOP=y
CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_PAGE_POISONING is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_RODATA is not set
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
# CONFIG_CRYPTO_FIPS is not set
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=m
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_SEQIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_GHASH=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=m
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
# CONFIG_CRYPTO_CAMELLIA is not set
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
# CONFIG_CRYPTO_SEED is not set
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=m

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_HIFN_795X=m
# CONFIG_CRYPTO_DEV_HIFN_795X_RNG is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_LAST_BIT=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
CONFIG_CRC_T10DIF=m
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=m
CONFIG_LZO_DECOMPRESS=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y

--gBBFr7Ir9EOA20Yy--
--
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From - Thu Nov 08 21:06:31 2018
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X-Mozilla-Keys:                                                                                 
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPMC in lba_pat_out8 on rp3440
Date: Sat, 20 Nov 2010 16:01:21 -0500
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To: Grant Grundler <grundler@parisc-linux.org>
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On Wed, 17 Nov 2010, John David Anglin wrote:

> > On that note, can you try a 32-bit kernel? (SMP maybe)
> 
> rp3440 doesn't support a 32-bit kernel.  I don't have a 32-bit SMP
> machine.  I did try a UP 2.6.36 kernel on my c3750.  It crashed doing
> its first gcc build.  Don't know why.  My 2.6.34.7 build is stable.

I noticed today building a new 32-bit kernel for c3750 that there
are a couple of section mismatches arising from lba_pci.c and superio.c.  

The attached patch fixes the warnings but clearly isn't ideal.
__devinit is supposed to be for modules/hotplug, but some code seems
to use it with .probe.  I couldn't find a good way to fix the warning
from superio.c, so I just removed the __init.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 3aeb327..3a2a7cb 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1303,7 +1303,7 @@ lba_legacy_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 **
 **************************************************************************/
 
-static int __init
+static int __devinit
 lba_hw_init(struct lba_device *d)
 {
 	u32 stat;
@@ -1400,7 +1400,7 @@ static unsigned int lba_next_bus = 0;
  * If so, initialize the chip and tell other partners in crime they
  * have work to do.
  */
-static int __init
+static int __devinit
 lba_driver_probe(struct parisc_device *dev)
 {
 	struct lba_device *lba_dev;
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index f7806d8..1f2f641 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -455,7 +455,7 @@ static void superio_fixup_pci(struct pci_dev *pdev)
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, superio_fixup_pci);
 
 
-static int __init
+static int
 superio_probe(struct pci_dev *dev, const struct pci_device_id *id)
 {
 	struct superio_device *sio = &sio_dev;
--
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From - Thu Nov 08 21:06:32 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [RFT] irq changes (was Re: [git] parisc: Changes to ref refs/heads/parisc)
Date: Sat, 20 Nov 2010 23:01:32 +0100
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To: Kyle McMartin <kyle@mcmartin.ca>
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On 11/15/2010 08:56 PM, Kyle McMartin wrote:
> On Sun, Nov 14, 2010 at 09:59:59PM +0100, Helge Deller wrote:
>> I just got again a chance to boot up my b160L and 715/64 machines.
>>
>> Both broke due to the IRQ changes. I did reverted all of your IRQ
>> patches (based on current Linus head branch) and now they boot
>> again.
>> Basically they just hang during the SCSI initialization (timeouts
>> while detectings discs).
>>
>> So, there is something wrong for Lasi/GSC and Dino busses....
>>
>> Any idea?
>>
> No, but I'll take a look, it's probably something simple and stupid that
> I missed. :/

I tried to look into it, but I'm somewhat lost.

This is what I get on my B160L.
Same result btw on the 715/64.


Booting...
Network Station Address 080009-ef34f5
System IP Address 192.168.178.65
Server IP Address 192.168.178.50

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl 1.13 root@c3000 Mon Apr  3 23:30:38 CEST 2006

Boot image contains:
     0/vmlinux32 7688520 bytes @ 0x9800

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'HOME=/ root=/dev/sda3  ip=bootp 
panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel='
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 
32-bit kernelELF32 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 6172672 mediaptr 0x1000
Segment 1 load 0072c000 size 311016 mediaptr 0x5e4000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.37-rc2-32bit+ (deller@p100.box) (gcc version 4.4.1 
(GCC) ) #282 Sat Nov 20 22:32:27 CET 2010
unwind_init: start = 0x10640000, end = 0x1067f610, entries = 16225
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005020 00000481 00000000 02020202 7794d7fe 100000f0 00000004 
000000ba 000000ba
vers  00000008
CPUID vers 15 rev 8 (0x000001e8)
capabilities 0x2
model 9000/778/B160L
Total Memory: 128 MB
LED display at f0190001 registered
pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
pcpu-alloc: [0] 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32512
Kernel command line: HOME=/ root=/dev/sda3 pa64root=sda5 ip=bootp 
panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlx
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 123100k/131072k available (4152k kernel code, 7972k reserved, 
1851k data, 304k init)
virtual kernel memory layout:
     vmalloc : 0x00810000 - 0x0f000000   ( 231 MB)
     memory  : 0x10000000 - 0x18000000   ( 128 MB)
       .init : 0x1072c000 - 0x10778000   ( 304 kB)
       .data : 0x1050e3a0 - 0x106dd170   (1851 kB)
       .text : 0x10100000 - 0x1050e3a0   (4152 kB)
NR_IRQS:96
Console: colour dummy device 128x48
Calibrating delay loop... 106.08 BogoMIPS (lpj=530432)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
xor: measuring software checksum speed
    8regs     :   131.200 MB/sec
    8regs_prefetch:   130.800 MB/sec
    32regs    :   198.800 MB/sec
    32regs_prefetch:   198.400 MB/sec
xor: using function: 32regs (198.800 MB/sec)
atomic64 test passed
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Phantom PseudoBC GSC+ Port at 0xffc00000 [8] { 7, 0x0, 0x504, 0x00000 }
2. Dino PCI Bridge at 0xfff80000 [8/0] { 13, 0x3, 0x680, 0x0000a }
3. Merlin+ 132 Dino RS-232 at 0xfff83000 [8/0/63] { 10, 0x0, 0x022, 
0x0008c }
4. Merlin 160 Core FW-SCSI at 0xfff8c000 [8/12] { 4, 0x0, 0x03d, 0x00089 }
5. Merlin 160 Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x03d, 0x00081 }, 
additional addresses: 0xffd0c000 0xffc00000
6. Merlin 160 Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x03d, 0x0008c }
7. Merlin 160 Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x03d, 0x00082 }
8. Merlin 160 Core LAN (802.3) at 0xffd07000 [8/16/6] { 10, 0x0, 0x03d, 
0x0008a }
9. Merlin 160 Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x03d, 
0x00074 }, additional addresses: 0xffd01000 0xffd03000
10. Merlin 160 Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x03d, 0x0007b }
11. Merlin 160 Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x03d, 
0x00084 }
12. Merlin 160 Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x03d, 
0x00084 }
13. Coral SGC Graphics at 0xfa000000 [8/4] { 10, 0x0, 0x004, 0x00077 }
14. Coral SGC Graphics at 0xf4000000 [8/8] { 10, 0x0, 0x004, 0x00077 }
15. Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 
0x00085 }, additional addresses: 0xf0011000
16. Merlin L2 160 (9000/778/B160L) at 0xfffbe000 [62] { 0, 0x0, 0x502, 
0x00004 }
17. Memory at 0xfffbf000 [63] { 1, 0x0, 0x067, 0x00009 }
18. Merlin+ 132 Dino PS/2 Port at 0xfff81000 [1] { 10, 0x0, 0x022, 0x00096 }
CPU(s): 1 x PA7300LC (PCX-L2) at 160.000000 MHz
Setting cache flush threshold to ac0 (1 CPUs online)
Lasi version 0 at 0xffd00000 found.
Dino version 3.1 found at 0xfff80000
Dino: No PCI devices enabled.
powersw: Soft power switch at 0xf0140000 enabled.
bio: create slab <bio-0> at 0
raid6: int32x1     59 MB/s
raid6: int32x2     76 MB/s
raid6: int32x4     86 MB/s
raid6: int32x8     58 MB/s
raid6: using algorithm int32x4 (86 MB/s)
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Switching to clocksource cr16
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 4, 81920 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
UDP hash table entries: 128 (order: 0, 6144 bytes)
UDP-Lite hash table entries: 128 (order: 0, 6144 bytes)
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Enabling PDC chassis warnings support v0.05
Initializing RT-Tester: OK
====[ backtrace testing ]===========
Testing a backtrace from process context.
The following trace is a kernel self test and not a bug!
Backtrace:
  [<10118558>] show_stack+0x18/0x28
  [<10111544>] dump_stack+0x1c/0x2c
  [<101732c8>] backtrace_regression_test+0x50/0x128
  [<10116454>] do_one_initcall+0x6c/0x2b8
  [<1072d850>] kernel_init+0xe0/0x184
  [<10102c5c>] ret_from_kernel_thread+0x1c/0x24

Testing a backtrace from irq context.
The following trace is a kernel self test and not a bug!
Backtrace:
  [<10118558>] show_stack+0x18/0x28
  [<10111544>] dump_stack+0x1c/0x2c
  [<10173258>] backtrace_test_irq_callback+0x18/0x38
  [<101403b4>] tasklet_action+0xbc/0xdc
  [<10140cfc>] __do_softirq+0xd8/0x1a4
  [<1011527c>] do_softirq+0x3c/0x60
  [<10140e54>] run_ksoftirqd+0x8c/0x138
  [<10157238>] kthread+0xa4/0xac
  [<10102c5c>] ret_from_kernel_thread+0x1c/0x24

Testing a saved backtrace.
The following trace is a kernel self test and not a bug!
  [<10121eb4>] save_stack_trace+0x28/0x60
  [<10173368>] backtrace_regression_test+0xf0/0x128
  [<10116454>] do_one_initcall+0x6c/0x2b8
  [<1072d850>] kernel_init+0xe0/0x184
  [<10102c5c>] ret_from_kernel_thread+0x1c/0x24
  [<ffffffff>] 0xffffffff
====[ end of backtrace testing ]====
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
msgmni has been set to 240
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9a
     id 2bcb015a-9a02587, conforms to spec rev. 8.04
     graphics card name: HPA4071B
     id 2d08c0a7-9a02587, conforms to spec rev. 8.07
     graphics card name: HPA4450AX1024
     id 2d08c0a7-9a02587, conforms to spec rev. 8.07
     graphics card name: INTERNAL_EG_X1024
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, HPA4071B, id: 2bcb015a, 
mmio: 0xfa100000
fb1: stifb 1024x768-8 frame buffer device, HPA4450AX1024, id: 2d08c0a7, 
mmio: 0xf4100000
fb2: stifb 1024x768-8 frame buffer device, INTERNAL_EG_X1024, id: 
2d08c0a7, mmio: 0xf8100000
Linux agpgart interface v0.103
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
8:16:4: ttyS0 at MMIO 0xffd05800 (irq = 16) is a 16550A
console [ttyS0] enabled, bootconsole disabled
console [ttyS0] enabled, bootconsole disabled
8:0:63: ttyS1 at MMIO 0xfff83800 (irq = 22) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 19 [PCSPP,TRISTATE]
parport0: fix this legacy no-device port driver!
brd: module loaded
loop: module loaded
Uniform Multi-Platform E-IDE driver
ide-gd driver 1.18
ide-cd driver 5.00
zalon_probe: Zalon version 1, IRQ 67
ncr53c720-0: rev 0xf irq 67
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3g

------------ HERE it starts "hanging" (output is very slow) --------------
-
It seems the zalon/720 driver is not getting any interrupts.
zalon seems to use the GSC chip.
- --------------------------------------------------------------------------



scsi 0:0:1:0: Device offlined - not ready after error recovery
scsi 0:0:2:0: Device offlined - not ready after error recovery
scsi 0:0:3:0: Device offlined - not ready after error recovery
scsi 0:0:4:0: Device offlined - not ready after error recovery
scsi 0:0:5:0: Device offlined - not ready after error recovery
scsi 0:0:6:0: Device offlined - not ready after error recovery
scsi 0:0:8:0: Device offlined - not ready after error recovery
scsi 0:0:9:0: Device offlined - not ready after error recovery
scsi 0:0:10:0: Device offlined - not ready after error recovery
scsi 0:0:11:0: Device offlined - not ready after error recovery
scsi 0:0:12:0: Device offlined - not ready after error recovery
scsi 0:0:13:0: Device offlined - not ready after error recovery
scsi 0:0:14:0: Device offlined - not ready after error recovery
scsi 0:0:15:0: Device offlined - not ready after error recovery
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
scsi 1:0:1:0: New error handler wants to abort command

scsi 1:0:1:0: CDB: cdb[0]=0x12: 12 00 00 00 24 00
scsi 1:0:1:0: New error handler wants BUS reset, cmd 17e35ee0

scsi 1:0:1:0: CDB: cdb[0]=0x12: 12 00 00 00 24 00
INFO: task scsi_eh_1:544 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
scsi_eh_1     D 10102d30     0   544      2 0x00000000
Backtrace:
  [<10111ffc>] schedule+0x288/0x510
  [<101125f4>] schedule_timeout+0x1a0/0x1fc
  [<10111bac>] wait_for_common+0xdc/0x188
  [<10111d64>] wait_for_completion+0x1c/0x2c
  [<1039e128>] NCR_700_bus_reset+0x104/0x180
  [<1037ad70>] scsi_try_bus_reset+0x38/0x138
  [<1037c44c>] scsi_eh_ready_devs+0x498/0x6b8
  [<1037cbfc>] scsi_error_handler+0x43c/0x44c
  [<10157238>] kthread+0xa4/0xac
  [<10102c5c>] ret_from_kernel_thread+0x1c/0x24

and so on...

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From - Thu Nov 08 21:06:32 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [RFT] irq changes (was Re: [git] parisc: Changes to ref
 refs/heads/parisc)
Date: Sat, 20 Nov 2010 16:05:59 -0600
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Cc: Kyle McMartin <kyle@mcmartin.ca>, linux-parisc@vger.kernel.org
To: Helge Deller <deller@gmx.de>
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On Sat, 2010-11-20 at 23:01 +0100, Helge Deller wrote:
> On 11/15/2010 08:56 PM, Kyle McMartin wrote:
> > On Sun, Nov 14, 2010 at 09:59:59PM +0100, Helge Deller wrote:
> >> I just got again a chance to boot up my b160L and 715/64 machines.
> >>
> >> Both broke due to the IRQ changes. I did reverted all of your IRQ
> >> patches (based on current Linus head branch) and now they boot
> >> again.
> >> Basically they just hang during the SCSI initialization (timeouts
> >> while detectings discs).
> >>
> >> So, there is something wrong for Lasi/GSC and Dino busses....
> >>
> >> Any idea?
> >>
> > No, but I'll take a look, it's probably something simple and stupid that
> > I missed. :/
> 
> I tried to look into it, but I'm somewhat lost.
> 
> This is what I get on my B160L.
> Same result btw on the 715/64.

The boot is just showing irq lost (so all the devices hang).

I've got it bisected to this commit on my C360:

commit ba20085c20f1c9e8af546dea6ad0efa421bdef32
Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
Date:   Wed Oct 13 21:00:55 2010 -0400

    parisc: lay groundwork for killing __do_IRQ

But I haven't found the fix yet ... the commit looks to be an equivalent
transformation.

James


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From - Thu Nov 08 21:06:32 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [RFT] irq changes (was Re: [git] parisc: Changes to ref
 refs/heads/parisc)
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On Sat, Nov 20, 2010 at 04:05:59PM -0600, James Bottomley wrote:
> commit ba20085c20f1c9e8af546dea6ad0efa421bdef32
> Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
> Date:   Wed Oct 13 21:00:55 2010 -0400
> 
>     parisc: lay groundwork for killing __do_IRQ
> 
> But I haven't found the fix yet ... the commit looks to be an equivalent
> transformation.
> 

The only obvious thing that jumps out is that... no, set_irq_chip
doesn't look to be doing anything awry.

But it must be something between what a 'raw' irq_desc looks like, and
what the helpers initialize them to.

--Kyle

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From - Thu Nov 08 21:06:32 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: HPMC in lba_pat_out8 on rp3440
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On Sat, 20 Nov 2010, John David Anglin wrote:

> On Wed, 17 Nov 2010, John David Anglin wrote:
> 
> > > On that note, can you try a 32-bit kernel? (SMP maybe)
> > 
> > rp3440 doesn't support a 32-bit kernel.  I don't have a 32-bit SMP
> > machine.  I did try a UP 2.6.36 kernel on my c3750.  It crashed doing
> > its first gcc build.  Don't know why.  My 2.6.34.7 build is stable.

I'm seeing messages like the following with 32-bit 2.6.36:

Nov 20 16:43:29 hiauly6 kernel: vgaarb: this pci device is not a vga device
Nov 20 17:03:50 hiauly6 kernel: swap_free: Bad swap offset entry 00100009
Nov 20 17:03:54 hiauly6 last message repeated 119 times
Nov 20 17:12:48 hiauly6 kernel: swap_free: Bad swap offset entry 00100009
Nov 20 17:13:11 hiauly6 last message repeated 871 times
Nov 20 17:19:39 hiauly6 kernel: swap_free: Bad swap offset entry 00100009
Nov 20 17:19:49 hiauly6 last message repeated 462 times
Nov 20 17:21:41 hiauly6 last message repeated 113 times
Nov 20 17:22:42 hiauly6 last message repeated 692 times
Nov 20 17:22:45 hiauly6 last message repeated 32 times
Nov 20 17:25:42 hiauly6 kernel: swap_free: Bad swap offset entry 00100009

System hung when I tried shutdown -r.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [RFT] irq changes (was Re: [git] parisc: Changes to ref
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To: Kyle McMartin <kyle@mcmartin.ca>
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On Sat, 2010-11-20 at 19:25 -0500, Kyle McMartin wrote:
> On Sat, Nov 20, 2010 at 04:05:59PM -0600, James Bottomley wrote:
> > commit ba20085c20f1c9e8af546dea6ad0efa421bdef32
> > Author: Kyle McMartin <kyle@dreadnought.i.jkkm.org>
> > Date:   Wed Oct 13 21:00:55 2010 -0400
> > 
> >     parisc: lay groundwork for killing __do_IRQ
> > 
> > But I haven't found the fix yet ... the commit looks to be an equivalent
> > transformation.
> > 
> 
> The only obvious thing that jumps out is that... no, set_irq_chip
> doesn't look to be doing anything awry.
> 
> But it must be something between what a 'raw' irq_desc looks like, and
> what the helpers initialize them to.

Actually, that all seems to be working.  I've traced the sym interrupt
through with a bunch of printks.  The CPU dino interrupt correctly
triggers.  It calls dino_isr which gets the right dino device and
correctly translates the pending interrupt to the right irq number (23)
in my case.  It looks like generic_handle_irq() (in dino_isr()) doesn't
call the handler, or the handler is somehow ineffective (it takes ages
to loop around and retry with the mask still pending).  That looks nuts
to me because it should be simply calling parisc_do_IRQ which is a
wrapper for the original do_IRQ ... so this should be equivalent.
Unfortunately getting on a 'plane soon and I have no access to a
remotely controllable dino system, so that's probably it for me on the
debugging front.

James


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From - Thu Nov 08 21:06:32 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: HPMC in lba_pat_out8 on rp3440
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On Sun, 21 Nov 2010, John David Anglin wrote:

> On Sat, 20 Nov 2010, John David Anglin wrote:
> 
> > On Wed, 17 Nov 2010, John David Anglin wrote:
> > 
> > > > On that note, can you try a 32-bit kernel? (SMP maybe)
> > > 
> > > rp3440 doesn't support a 32-bit kernel.  I don't have a 32-bit SMP
> > > machine.  I did try a UP 2.6.36 kernel on my c3750.  It crashed doing
> > > its first gcc build.  Don't know why.  My 2.6.34.7 build is stable.
> 
> I'm seeing messages like the following with 32-bit 2.6.36:
> 
> Nov 20 16:43:29 hiauly6 kernel: vgaarb: this pci device is not a vga device
> Nov 20 17:03:50 hiauly6 kernel: swap_free: Bad swap offset entry 00100009

The "Bad swap offset entry" is definitely a 2.6.36 regression.  This
doesn't happen with 2.6.34.7 or 2.6.35.8 with essentially identical
configs.  It seems 32-bit specific.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [RFT] irq changes (was Re: [git] parisc: Changes to ref
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On Sun, Nov 14, 2010 at 09:59:59PM +0100, Helge Deller wrote:
> I just got again a chance to boot up my b160L and 715/64 machines.
> 

I got my 712 hooked up (sadly my B180 has lost its hard disk and RTC,
but I can netboot it if I need to...) and I'll poke at this this
afternoon.


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From - Thu Nov 08 21:06:33 2018
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Subject: Re: [PATCH] parisc : KittyHawk LCD fix
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On Sat, Nov 06, 2010 at 05:24:29PM +0100, Guy Martin wrote:
> 
> K class aka KittyHawk don't have LED support on their LCD. Installing
> HP-UX confirmed this. The current led_wq fills the LCD with black
> characters each time it runs.
> 
> The patch prevents the led_wq workqueue and its proc entry to be
> created for KittyHawk machines.
> 
> It also increase min_cmd_delay as currently, one character out of two
> is lost when a string is sent to the LCD.
> 
> Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>

Applied, thanks Guy.
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Subject: C8000 problems, WIP patch
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Hi,

I finally found some time to play with my C8000. I'm now able to use
the FireGL card with Xorg (fbdev only). Below is my current patch with
lots of ugly hacks.

Things to sort out:

1. What's the best way to get the right interrupts for the onboard
   serial interface ? My hack works for me, but I don't think this
   is acceptable.

2. Is the PCI_MMAP implementation correct ? If yes, I'd split it out
   and send it with a Signed-By. Newer Xorgs need pci_mmap...

3. Does anybody know why firmware returns wrong ranges for LBA LMMIO ?
   With the wrong ranges from PDC at least the LMMIO windows for
   the AGP bridge is too small to fit the ranges of the FireGL card.
   If my hack is acceptable, I'd also split it out and send it with
   a Signed-By.

4. IPMI code works with hacks, but I need to dig deeper to find a clean
   solution.

Patch is against 2.6.36-rc7-00124-g85a3318

Thomas.

diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index 2242a5c..2c51a63 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -263,4 +263,9 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 	return channel ? 15 : 14;
 }
 
+#define HAVE_PCI_MMAP
+
+extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+	enum pci_mmap_state mmap_state, int write_combine);
+
 #endif /* __ASM_PARISC_PCI_H */
diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index f48a640..3e4111f 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -1204,6 +1204,7 @@ static struct hp_hardware hp_hardware_list[] __devinitdata = {
 	{HPHW_FIO, 0x004, 0x00320, 0x0, "Metheus Frame Buffer"}, 
 	{HPHW_FIO, 0x004, 0x00340, 0x0, "BARCO CX4500 VME Grphx Cnsl"}, 
 	{HPHW_FIO, 0x004, 0x00360, 0x0, "Hughes TOG VME FDDI"}, 
+	{HPHW_FIO, 0x076, 0x000AD, 0x00, "Crestone Peak RS-232"},
 	{HPHW_IOA, 0x185, 0x0000B, 0x00, "Java BC Summit Port"}, 
 	{HPHW_IOA, 0x1FF, 0x0000B, 0x00, "Hitachi Ghostview Summit Port"}, 
 	{HPHW_IOA, 0x580, 0x0000B, 0x10, "U2-IOA BC Runway Port"}, 
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 9efd974..c4ff6eb 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -247,6 +247,33 @@ EXPORT_SYMBOL(pcibios_resource_to_bus);
 EXPORT_SYMBOL(pcibios_bus_to_resource);
 #endif
 
+int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+			enum pci_mmap_state mmap_state, int write_combine)
+{
+	unsigned long prot;
+
+	/*
+	 * I/O space can be accessed via normal processor loads and stores on
+	 * this platform but for now we elect not to do this and portable
+	 * drivers should not do this anyway.
+	 */
+	if (mmap_state == pci_mmap_io)
+		return -EINVAL;
+
+	if (write_combine)
+		return -EINVAL;
+
+	/*
+	 * Ignore write-combine; for now only return uncached mappings.
+	 */
+	prot = pgprot_val(vma->vm_page_prot);
+	prot |= _PAGE_NO_CACHE;
+	vma->vm_page_prot = __pgprot(prot);
+
+	return remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
+		vma->vm_end - vma->vm_start, vma->vm_page_prot);
+}
+
 /*
  * pcibios align resources() is called every time generic PCI code
  * wants to generate a new address. The process of looking for
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 7bd7c45..c168cac 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -1213,8 +1213,8 @@ static LIST_HEAD(smi_infos);
 static DEFINE_MUTEX(smi_infos_lock);
 static int smi_num; /* Used to sequence the SMIs */
 
-#define DEFAULT_REGSPACING	1
-#define DEFAULT_REGSIZE		1
+#define DEFAULT_REGSPACING	4
+#define DEFAULT_REGSIZE		4
 
 static int           si_trydefaults = 1;
 static char          *si_type[SI_MAX_PARMS];
@@ -1486,14 +1486,14 @@ static void intf_mem_outw(struct si_sm_io *io, unsigned int offset,
 
 static unsigned char intf_mem_inl(struct si_sm_io *io, unsigned int offset)
 {
-	return (readl((io->addr)+(offset * io->regspacing)) >> io->regshift)
+	return (__raw_readl((io->addr)+(offset * io->regspacing)) >> io->regshift)
 		& 0xff;
 }
 
 static void intf_mem_outl(struct si_sm_io *io, unsigned int offset,
 		     unsigned char b)
 {
-	writel(b << io->regshift, (io->addr)+(offset * io->regspacing));
+	__raw_writel(b << io->regshift, (io->addr)+(offset * io->regspacing));
 }
 
 #ifdef readq
@@ -2996,9 +2996,12 @@ static __devinitdata struct ipmi_default_vals
 	int port;
 } ipmi_defaults[] =
 {
+#if 0
 	{ .type = SI_KCS, .port = 0xca2 },
 	{ .type = SI_SMIC, .port = 0xca9 },
 	{ .type = SI_BT, .port = 0xe4 },
+#endif
+	{ .type = SI_KCS, .port = 0xfffffff0f05b0000 },
 	{ .port = 0 }
 };
 
@@ -3021,13 +3024,13 @@ static __devinit void default_find_bmc(void)
 		info->addr_source = SI_DEFAULT;
 
 		info->si_type = ipmi_defaults[i].type;
-		info->io_setup = port_setup;
-		info->io.addr_data = ipmi_defaults[i].port;
-		info->io.addr_type = IPMI_IO_ADDR_SPACE;
+		info->io_setup = mem_setup;
+		info->io.addr_data = 0xfffffff0f05b0000; // ipmi_defaults[i].port;
+		info->io.addr_type = IPMI_MEM_ADDR_SPACE;
 
 		info->io.addr = NULL;
-		info->io.regspacing = DEFAULT_REGSPACING;
-		info->io.regsize = DEFAULT_REGSPACING;
+		info->io.regspacing = 1; // DEFAULT_REGSPACING;
+		info->io.regsize = 1; // DEFAULT_REGSPACING;
 		info->io.regshift = 0;
 
 		if (add_smi(info) == 0) {
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 5cc39ed..9964a66 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -935,7 +935,7 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
 	e1000_reset_hw(hw);
 
 	/* make sure the EEPROM is good */
-	if (e1000_validate_eeprom_checksum(hw) < 0) {
+	if (0 && e1000_validate_eeprom_checksum(hw) < 0) {
 		e_err(probe, "The EEPROM Checksum Is Not Valid\n");
 		e1000_dump_eeprom(adapter);
 		/*
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index c768367..9e5901f 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -836,6 +836,68 @@ int iosapic_fixup_irq(void *isi_obj, struct pci_dev *pcidev)
 	return pcidev->irq;
 }
 
+static struct iosapic_info *first_isi = NULL;
+
+int iosapic_serial_irq(int num)
+{
+	struct iosapic_info *isi = first_isi;
+	struct irt_entry *irte = NULL;  /* only used if PAT PDC */
+	struct vector_info *vi;
+	int isi_line;	/* line used by device */
+
+	/* lookup IRT entry for isi/slot/pin set */
+	irte = &irt_cell[num];
+
+	DBG_IRT("iosapic_serial_irq(): irte %p %x %x %x %x %x %x %x %x\n",
+		irte,
+		irte->entry_type,
+		irte->entry_length,
+		irte->polarity_trigger,
+		irte->src_bus_irq_devno,
+		irte->src_bus_id,
+		irte->src_seg_id,
+		irte->dest_iosapic_intin,
+		(u32) irte->dest_iosapic_addr);
+	isi_line = irte->dest_iosapic_intin;
+
+	/* get vector info for this input line */
+	vi = isi->isi_vector + isi_line;
+	DBG_IRT("iosapic_serial_irq:  line %d vi 0x%p\n", isi_line, vi);
+
+	/* If this IRQ line has already been setup, skip it */
+	if (vi->irte)
+		goto out;
+
+	vi->irte = irte;
+
+	/*
+	 * Allocate processor IRQ
+	 *
+	 * XXX/FIXME The txn_alloc_irq() code and related code should be
+	 * moved to enable_irq(). That way we only allocate processor IRQ
+	 * bits for devices that actually have drivers claiming them.
+	 * Right now we assign an IRQ to every PCI device present,
+	 * regardless of whether it's used or not.
+	 */
+	vi->txn_irq = txn_alloc_irq(8);
+
+	if (vi->txn_irq < 0)
+		panic("I/O sapic: couldn't get TXN IRQ\n");
+
+	/* enable_irq() will use txn_* to program IRdT */
+	vi->txn_addr = txn_alloc_addr(vi->txn_irq);
+	vi->txn_data = txn_alloc_data(vi->txn_irq);
+
+	vi->eoi_addr = isi->addr + IOSAPIC_REG_EOI;
+	vi->eoi_data = cpu_to_le32(vi->txn_data);
+
+	cpu_claim_irq(vi->txn_irq, &iosapic_interrupt_type, vi);
+
+ out:
+
+	return vi->txn_irq;
+}
+
 
 /*
 ** squirrel away the I/O Sapic Version
@@ -902,6 +964,8 @@ void *iosapic_register(unsigned long hpa)
 		vip->irqline = (unsigned char) cnt;
 		vip->iosapic = isi;
 	}
+	if (!first_isi)
+		first_isi = isi;
 	return isi;
 }
 
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 3aeb327..3d185d0 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1025,6 +1025,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 			unsigned long end;	/* aka finish */
 		} *p, *io;
 		struct resource *r;
+		unsigned long lba_len;
 
 		p = (void *) &(pa_pdc_cell->mod[2+i*3]);
 		io = (void *) &(io_pdc_cell->mod[2+i*3]);
@@ -1039,6 +1040,13 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 		case PAT_LMMIO:
 			/* used to fix up pre-initialized MEM BARs */
 			if (!lba_dev->hba.lmmio_space.start) {
+				lba_len = ~READ_REG32(lba_dev->hba.base_addr + LBA_LMMIO_MASK);
+				if ((p->end - p->start) != lba_len) {
+					printk(KERN_WARNING
+					       "PCI%02x LMMIO mismatch between PAT length and MASK register, fixing.\n",
+					       (int)lba_dev->hba.bus_num.start);
+					p->end = p->start + lba_len;
+				}
 				sprintf(lba_dev->hba.lmmio_name,
 						"PCI%02x LMMIO",
 						(int)lba_dev->hba.bus_num.start);
diff --git a/drivers/serial/8250_gsc.c b/drivers/serial/8250_gsc.c
index d8c0ffb..69d7a58 100644
--- a/drivers/serial/8250_gsc.c
+++ b/drivers/serial/8250_gsc.c
@@ -24,13 +24,17 @@
 
 #include "8250.h"
 
+static int num = 4;
+
+extern int iosapic_serial_irq(int);
+
 static int __init serial_init_chip(struct parisc_device *dev)
 {
 	struct uart_port port;
 	unsigned long address;
 	int err;
 
-	if (!dev->irq) {
+	if (0 && !dev->irq) {
 		/* We find some unattached serial ports by walking native
 		 * busses.  These should be silently ignored.  Otherwise,
 		 * what we have here is a missing parent device, so tell
@@ -43,6 +47,8 @@ static int __init serial_init_chip(struct parisc_device *dev)
 				(unsigned long long)dev->hpa.start);
 		return -ENODEV;
 	}
+	dev->irq = iosapic_serial_irq(num++);
+	printk("serial %d irq %d\n",num-1, dev->irq);
 
 	address = dev->hpa.start;
 	if (dev->id.sversion != 0x8d)
@@ -51,7 +57,8 @@ static int __init serial_init_chip(struct parisc_device *dev)
 	memset(&port, 0, sizeof(port));
 	port.iotype	= UPIO_MEM;
 	/* 7.272727MHz on Lasi.  Assumed the same for Dino, Wax and Timi. */
-	port.uartclk	= 7272727;
+	//port.uartclk	= 7272727;
+	port.uartclk	= 1843200;
 	port.mapbase	= address;
 	port.membase	= ioremap_nocache(address, 16);
 	port.irq	= dev->irq;
@@ -73,6 +80,7 @@ static struct parisc_device_id serial_tbl[] = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00075 },
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008c },
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008d },
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x000ad },
 	{ 0 }
 };
 
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On Thu, Nov 25, 2010 at 6:36 PM, Thomas Bogendoerfer
<tsbogend@alpha.franken.de> wrote:
> 2. Is the PCI_MMAP implementation correct ? If yes, I'd split it out
> =A0 and send it with a Signed-By. Newer Xorgs need pci_mmap...

With a FireGL, you should try radeon kernel modesetting. With KMS,
pci_mmap isn't needed, I think. But that's orthogonal.

Matt
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On Thu, Nov 25, 2010 at 10:50:36PM -0500, Matt Turner wrote:
> On Thu, Nov 25, 2010 at 6:36 PM, Thomas Bogendoerfer
> <tsbogend@alpha.franken.de> wrote:
> > 2. Is the PCI_MMAP implementation correct ? If yes, I'd split it ou=
t
> > =A0 and send it with a Signed-By. Newer Xorgs need pci_mmap...
>=20
> With a FireGL, you should try radeon kernel modesetting. With KMS,
> pci_mmap isn't needed, I think. But that's orthogonal.

this is not about mode settings, it's about how the Xorg xserver
maps framebuffer and registers. Xorg from lenny tries the old method,
which fails on the C8000 for some reason, I haven't understood, yet.
Xorg from sid only uses mapping of the pci node from sysfs, which uses
pci_mmap inside the kernel. And the current upstream parisc kernel
has not support for mapping via pci sysfs nodes.

Thomas.

--=20
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y a
good idea.                                                [ RFC1925, 2.=
3 ]
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From - Thu Nov 08 21:06:33 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [RFT] irq changes (was Re: [git] parisc: Changes to ref
 refs/heads/parisc)
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org
To: Kyle McMartin <kyle@mcmartin.ca>
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On Wed, Nov 24, 2010 at 06:56:42AM -0500, Kyle McMartin wrote:
> On Sun, Nov 14, 2010 at 09:59:59PM +0100, Helge Deller wrote:
> > I just got again a chance to boot up my b160L and 715/64 machines.
> > 
> 
> I got my 712 hooked up (sadly my B180 has lost its hard disk and RTC,
> but I can netboot it if I need to...) and I'll poke at this this
> afternoon.
> 

Haven't had a chance to debug this entirely yet, well, I wrote a patch
to do proper chained handlers and got my B180 reinstalled... Will let
you know tonight.

--Kyle
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.openipmi
Subject: [PATCH] BMC support for PARISC machines
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The last line of PARISC machines (C8000, RP34x0, etc.) have a BMC for
controlling temperature, fan speed and other stuff. The BMC is connected
via a special bus and listed in the firmware device tree. This change
adds support for these BMCs to the IPMI driver.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---

 drivers/char/ipmi/ipmi_si_intf.c |   78 ++++++++++++++++++++++++++++++++++++++
 1 files changed, 78 insertions(+), 0 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 035da9e..1599a45 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -71,6 +71,11 @@
 #include <linux/of_platform.h>
 #endif
 
+#ifdef CONFIG_PARISC
+#include <asm/hardware.h>	/* for register_parisc_driver() stuff */
+#include <asm/parisc-device.h>
+#endif
+
 #define PFX "ipmi_si: "
 
 /* Measure times between events in the driver. */
@@ -311,6 +316,9 @@ static int pnp_registered;
 #ifdef CONFIG_PPC_OF
 static int of_registered;
 #endif
+#ifdef CONFIG_PARISC
+static int parisc_registered;
+#endif
 
 static unsigned int kipmid_max_busy_us[SI_MAX_PARMS];
 static int num_max_busy_us;
@@ -2648,6 +2656,64 @@ static struct of_platform_driver ipmi_of_platform_driver = {
 };
 #endif /* CONFIG_PPC_OF */
 
+#ifdef CONFIG_PARISC
+static int __devinit ipmi_parisc_probe(struct parisc_device *dev)
+{
+	struct smi_info *info;
+
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
+
+	if (!info) {
+		dev_err(&dev->dev,
+			"could not allocate memory for PARISC probe\n");
+		return -ENOMEM;
+	}
+
+	info->si_type		= SI_KCS;
+	info->addr_source	= SI_DEVICETREE;
+	info->io_setup		= mem_setup;
+	info->io.addr_type	= IPMI_MEM_ADDR_SPACE;
+	info->io.addr_data	= dev->hpa.start;
+	info->io.regsize	= 1;
+	info->io.regspacing	= 1;
+	info->io.regshift	= 0;
+	info->irq		= 0; /* no interrup */
+	info->irq_setup		= NULL;
+	info->dev		= &dev->dev;
+
+	dev_dbg(&dev->dev, "addr 0x%lx regsize %d spacing %d irq %d\n",
+		info->io.addr_data, info->io.regsize, info->io.regspacing,
+		info->irq);
+
+	dev_set_drvdata(&dev->dev, info);
+
+	if (add_smi(info)) {
+		kfree(info);
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+static int __devexit ipmi_parisc_remove(struct parisc_device *dev)
+{
+	cleanup_one_si(dev_get_drvdata(&dev->dev));
+	return 0;
+}
+
+static struct parisc_device_id ipmi_parisc_tbl[] = {
+	{ HPHW_MC, HVERSION_REV_ANY_ID, 0x004, 0xC0 },
+	{ 0, }
+};
+
+static struct parisc_driver ipmi_parisc_driver = {
+	.name =		"ipmi",
+	.id_table =	ipmi_parisc_tbl,
+	.probe =	ipmi_parisc_probe,
+	.remove =	ipmi_parisc_remove,
+};
+#endif /* CONFIG_PARISC */
+
 static int wait_for_msg_done(struct smi_info *smi_info)
 {
 	enum si_sm_result     smi_result;
@@ -3385,6 +3451,13 @@ static int __devinit init_ipmi_si(void)
 	of_registered = 1;
 #endif
 
+#ifdef CONFIG_PARISC
+	register_parisc_driver(&ipmi_parisc_driver);
+	parisc_registered = 1;
+	/* poking PC IO addresses will crash machine, don't do it */
+	si_trydefaults = 0;
+#endif
+
 	/* We prefer devices with interrupts, but in the case of a machine
 	   with multiple BMCs we assume that there will be several instances
 	   of a given type so if we succeed in registering a type then also
@@ -3444,6 +3517,11 @@ static int __devinit init_ipmi_si(void)
 		if (of_registered)
 			of_unregister_platform_driver(&ipmi_of_platform_driver);
 #endif
+
+#ifdef CONFIG_PARISC
+		if (parisc_registered)
+			unregister_parisc_driver(&ipmi_parisc_driver);
+#endif
 		driver_unregister(&ipmi_driver.driver);
 		printk(KERN_WARNING PFX
 		       "Unable to find any System Interface(s)\n");
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From - Thu Nov 08 21:06:33 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix dino/gsc interrupts
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The essential problem we're currently having is that dino (and gsc) is a
cascaded CPU interrupt.  Under the old __do_IRQ() handler, our CPU
interrupts basically did an ack followed by an end.  In the new scheme,
we replaced them with level handlers which do a mask, an ack and then an
unmask (but no end).  Instead, with the renaming of end to eoi, we
actually want to call the percpu flow handlers, because they actually
have all the characteristics we want.

This patch does the conversion and gets my C360 booting again.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>

---

I think we also want to convert the dino and gsc handlers to simpler
flow controllers (the mask/unmask of level is totally unnecessary for
them), but I'll do that later.

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 5024f64..48aa711 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -392,7 +392,7 @@ static void claim_cpu_irqs(void)
 	int i;
 	for (i = CPU_IRQ_BASE; i <= CPU_IRQ_MAX; i++) {
 		set_irq_chip_and_handler(i, &cpu_interrupt_type,
-			handle_level_irq);
+					 handle_percpu_irq);
 	}
 
 	set_irq_handler(TIMER_IRQ, handle_percpu_irq);


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From - Thu Nov 08 21:06:33 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: convert the rest of the irq handlers to
 simple/percpu
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The generic conversion eliminates the spurious no_ack and no_end
routines, converts all the cascaded handlers to handle_simple_irq() and
makes iosapic use a modified handle_percpu_irq() to become the same as
the CPU irq's.  This isn't an essential change, but it eliminates the
mask/unmask overhead of handle_level_irq().

Signed-off-by: James Bottomley <James.Bottomley@suse.de>

---

Tested on raven and pa8800

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 5024f64..ca0730b 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -75,9 +75,6 @@ static void cpu_unmask_irq(unsigned int irq)
 	smp_send_all_nop();
 }
 
-void no_ack_irq(unsigned int irq) { }
-void no_end_irq(unsigned int irq) { }
-
 void cpu_ack_irq(unsigned int irq)
 {
 	unsigned long mask = EIEM_MASK(irq);
@@ -241,7 +238,7 @@ int cpu_claim_irq(unsigned int irq, struct irq_chip *type, void *data)
 
 	/* for iosapic interrupts */
 	if (type) {
-		set_irq_chip_and_handler(irq, type, handle_level_irq);
+		set_irq_chip_and_handler(irq, type, handle_percpu_irq);
 		set_irq_chip_data(irq, data);
 		cpu_unmask_irq(irq);
 	}
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index d9f5148..9383063 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -349,7 +349,6 @@ static struct irq_chip dino_interrupt_type = {
 	.name	= "GSC-PCI",
 	.unmask	= dino_unmask_irq,
 	.mask	= dino_mask_irq,
-	.ack	= no_ack_irq,
 };
 
 
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 1211974..e860038 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -186,7 +186,6 @@ static struct irq_chip eisa_interrupt_type = {
 	.name	=	"EISA",
 	.unmask	=	eisa_unmask_irq,
 	.mask	=	eisa_mask_irq,
-	.ack	=	no_ack_irq,
 };
 
 static irqreturn_t eisa_irq(int wax_irq, void *intr_dev)
@@ -340,7 +339,7 @@ static int __init eisa_probe(struct parisc_device *dev)
 	setup_irq(2, &irq2_action);
 	for (i = 0; i < 16; i++) {
 		set_irq_chip_and_handler(i, &eisa_interrupt_type,
-			handle_level_irq);
+					 handle_simple_irq);
 	}
 	
 	EISA_bus = 1;
diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c
index e605298..772b193 100644
--- a/drivers/parisc/gsc.c
+++ b/drivers/parisc/gsc.c
@@ -143,7 +143,6 @@ static struct irq_chip gsc_asic_interrupt_type = {
 	.name	=	"GSC-ASIC",
 	.unmask	=	gsc_asic_unmask_irq,
 	.mask	=	gsc_asic_mask_irq,
-	.ack	=	no_ack_irq,
 };
 
 int gsc_assign_irq(struct irq_chip *type, void *data)
@@ -153,7 +152,7 @@ int gsc_assign_irq(struct irq_chip *type, void *data)
 	if (irq > GSC_IRQ_MAX)
 		return NO_IRQ;
 
-	set_irq_chip_and_handler(irq, type, handle_level_irq);
+	set_irq_chip_and_handler(irq, type, handle_simple_irq);
 	set_irq_chip_data(irq, data);
 
 	return irq++;
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index a3120a0..0327894 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -669,6 +669,13 @@ printk("\n");
 	DBG(KERN_DEBUG "enable_irq(%d): eoi(%p, 0x%x)\n", irq,
 			vi->eoi_addr, vi->eoi_data);
 	iosapic_eoi(vi->eoi_addr, vi->eoi_data);
+}
+
+static void iosapic_eoi_irq(unsigned int irq)
+{
+	struct vector_info *vi = get_irq_chip_data(irq);
+
+	iosapic_eoi(vi->eoi_addr, vi->eoi_data);
 	cpu_eoi_irq(irq);
 }
 
@@ -705,6 +712,7 @@ static struct irq_chip iosapic_interrupt_type = {
 	.unmask	=	iosapic_unmask_irq,
 	.mask	=	iosapic_mask_irq,
 	.ack	=	cpu_ack_irq,
+	.eoi	=	iosapic_eoi_irq,
 #ifdef CONFIG_SMP
 	.set_affinity =	iosapic_set_affinity_irq,
 #endif
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 0846daf..2824153 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -323,7 +323,6 @@ static struct irq_chip superio_interrupt_type = {
 	.name	=	SUPERIO,
 	.unmask	=	superio_unmask_irq,
 	.mask	=	superio_mask_irq,
-	.ack =		no_ack_irq,
 };
 
 #ifdef DEBUG_SUPERIO_INIT
@@ -354,7 +353,7 @@ int superio_fixup_irq(struct pci_dev *pcidev)
 #endif
 
 	for (i = 0; i < 16; i++) {
-		set_irq_chip_and_handler(i, &superio_interrupt_type, handle_level_irq);
+		set_irq_chip_and_handler(i, &superio_interrupt_type, handle_simple_irq);
 	}
 
 	/*


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From - Thu Nov 08 21:06:33 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc : Fix GSC PS/2 driver name for keyboard and mouse
Date: Fri, 03 Dec 2010 22:25:37 +0100
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To: Guy Martin <gmsoft@tuxicoman.be>
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On 11/02/2010 04:23 PM, Guy Martin wrote:
> Fix kernel warnings caused by the driver name of GSC PS/2 containing '/'.
>
> The following warnings are observed on a K410 system :
>
> [   10.700000] name 'GSC PS/2 keyboard'
> [   10.732000] ------------[ cut here ]------------
> [   10.772000] WARNING: at fs/proc/generic.c:323
> [   10.828000] Modules linked in:
> [   10.916000]
> [   10.916000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [   10.936000] PSW: 00000000000001000000000000001111 Not tainted
> [   10.992000] r00-03  0004000f 104fe3e0 10201ea0 00000000
> [   11.060000] r04-07  4fc405c8 00000006 4fc405c8 4fc40694
> [   11.124000] r08-11  4fc40708 10438aa0 00000001 1043bfc8
> [   11.184000] r12-15  104ff2a0 104ff2a0 4fc38634 104ff2a0
> [   11.248000] r16-19  f0001570 10479af0 f000006c 1044fe50
> [   11.308000] r20-23  00000000 00000028 104cd858 00000000
> [   11.372000] r24-27  ffffffff 0000000e 1044fe10 1043bbe0
> [   11.436000] r28-31  0000002b 00000078 4fc40800 0000000d
> [   11.496000] sr00-03  00000000 00000000 00000000 00000000
> [   11.560000] sr04-07  00000000 00000000 00000000 00000000
> [   11.624000]
> [   11.688000] IASQ: 00000000 00000000 IAOQ: 10201ea0 10201ea4
> [   11.704000]  IIR: 03ffe01f    ISR: 00000000  IOR: 0000000d
> [   11.772000]  CPU:        0   CR30: 4fc40000 CR31: f01043b0
> [   11.836000]  ORIG_R28: 4fc40940
> [   11.904000]  IAOQ[0]: __xlate_proc_name+0x90/0xd0
> [   11.940000]  IAOQ[1]: __xlate_proc_name+0x94/0xd0
> [   11.996000]  RP(r2): __xlate_proc_name+0x90/0xd0
> [   12.052000] Backtrace:
> [   12.108000]  [<10257790>] vsnprintf+0x290/0x4f4
> [   12.136000]
> [   12.188000] ---[ end trace 91bf6ece17e322dd ]---
> [   12.208000] serio: GSC PS/2 keyboard port at 0x0001c000 irq 19 @ 10:12:7
> [   12.264000] name 'GSC PS/2 mouse'
> [   12.344000] ------------[ cut here ]------------
> [   12.384000] WARNING: at fs/proc/generic.c:323
> [   12.436000] Modules linked in:
> [   12.524000]
> [   12.528000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [   12.544000] PSW: 00000000000001000000000000001111 Tainted: G        W
> [   12.600000] r00-03  0004000f 104fe3e0 10201ea0 00000000
> [   12.680000] r04-07  4fc405c8 00000006 4fc405c8 4fc40694
> [   12.740000] r08-11  4fc40708 10438aa0 00000001 1043bfc8
> [   12.804000] r12-15  104ff2a0 104ff2a0 4fc38634 104ff2a0
> [   12.868000] r16-19  f0001570 10479af0 f000006c 1044fe50
> [   12.928000] r20-23  00000000 00000025 104cd858 00000000
> [   12.992000] r24-27  ffffffff 0000000e 1044fe10 1043bbe0
> [   13.056000] r28-31  00000028 00000078 4fc40800 0000000d
> [   13.116000] sr00-03  00000000 00000000 00000000 00000000
> [   13.180000] sr04-07  00000000 00000000 00000000 00000000
> [   13.244000]
> [   13.308000] IASQ: 00000000 00000000 IAOQ: 10201ea0 10201ea4
> [   13.324000]  IIR: 03ffe01f    ISR: 00000000  IOR: 0000000d
> [   13.392000]  CPU:        0   CR30: 4fc40000 CR31: f01043b0
> [   13.456000]  ORIG_R28: 4fc40940
> [   13.524000]  IAOQ[0]: __xlate_proc_name+0x90/0xd0
> [   13.560000]  IAOQ[1]: __xlate_proc_name+0x94/0xd0
> [   13.616000]  RP(r2): __xlate_proc_name+0x90/0xd0
> [   13.672000] Backtrace:
> [   13.728000]  [<10257790>] vsnprintf+0x290/0x4f4
> [   13.756000]
> [   13.808000] ---[ end trace 91bf6ece17e322de ]---
> [   13.828000] serio: GSC PS/2 mouse port at 0x00020100 irq 19 @ 10:12:8
>
>
> Signed-off-by: Guy Martin<gmsoft@tuxicoman.be>

Hi Guy,

can you please send this patch to  Dmitry Torokhov 
<dmitry.torokhov@gmail.com> and
linux-input@vger.kernel.org to (hopefully) get it included into 2.6.37 ?
I think this is an important patch...

You may add an
Acked-by: Helge Deller <deller@gmx.de>

Helge

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From - Thu Nov 08 21:06:33 2018
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Subject: Re: [PATCH] parisc: convert the rest of the irq handlers to simple/percpu
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On 12/03/2010 03:01 AM, James Bottomley wrote:
> The generic conversion eliminates the spurious no_ack and no_end
> routines, converts all the cascaded handlers to handle_simple_irq() and
> makes iosapic use a modified handle_percpu_irq() to become the same as
> the CPU irq's.  This isn't an essential change, but it eliminates the
> mask/unmask overhead of handle_level_irq().
>
> Signed-off-by: James Bottomley<James.Bottomley@suse.de>
Nice patches James! (although I only reply to this one)

They work for me on 715/64, B160L and c3000.
Can you or Kyle send those patches upstream for 2.6.37?

Helge
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From - Thu Nov 08 21:06:33 2018
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Subject: Re: [PATCH] parisc: convert the rest of the irq handlers to
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On Fri, 2010-12-03 at 22:27 +0100, Helge Deller wrote:
> On 12/03/2010 03:01 AM, James Bottomley wrote:
> > The generic conversion eliminates the spurious no_ack and no_end
> > routines, converts all the cascaded handlers to handle_simple_irq() and
> > makes iosapic use a modified handle_percpu_irq() to become the same as
> > the CPU irq's.  This isn't an essential change, but it eliminates the
> > mask/unmask overhead of handle_level_irq().
> >
> > Signed-off-by: James Bottomley<James.Bottomley@suse.de>
> Nice patches James! (although I only reply to this one)
> 
> They work for me on 715/64, B160L and c3000.
> Can you or Kyle send those patches upstream for 2.6.37?

Sure, although kyle was also going to post a different patch, I
think ... we only need the one liner upstream to make everything work.
The rest is just a conversion to more simplistic handlers which can wait
for the merge window.

James


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Subject: [git pull request] parisc fixes for 2.6.37
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Hi Linus,

Please pull the following bug fixes for parisc. Contents are entirely
bug fixes (two for the do_IRQ removal earlier this release) and a signal
patch to remove redundant initializing of a union pointed out by Randy.

regards, Kyle

---

The following changes since commit bcb38ceb225f5d5b2198a2755277cd441ed1e82b:

  Revert "debug_locks: set oops_in_progress if we will log messages." (2010-11-29 15:18:28 -0800)

are available in the git repository at:
  git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git fixes

Guy Martin (2):
      parisc: KittyHawk LCD fix
      parisc: Fix GSC PS/2 driver name for keyboard and mouse

James Bottomley (2):
      parisc: fix dino/gsc interrupts
      parisc: convert the rest of the irq handlers to simple/percpu

Kyle McMartin (1):
      parisc: remove redundant initialization in sigsegv path of sys_rt_sigreturn

 arch/parisc/kernel/irq.c     |    7 ++-----
 arch/parisc/kernel/signal.c  |    9 +--------
 drivers/input/serio/gscps2.c |    2 +-
 drivers/parisc/dino.c        |    1 -
 drivers/parisc/eisa.c        |    3 +--
 drivers/parisc/gsc.c         |    3 +--
 drivers/parisc/iosapic.c     |    8 ++++++++
 drivers/parisc/led.c         |   17 +++++++++++++----
 drivers/parisc/superio.c     |    3 +--
 9 files changed, 28 insertions(+), 25 deletions(-)
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From - Thu Nov 08 21:06:34 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.drivers.e1000.devel
Subject: Re: [PATCH] e1000: Allow the driver to be used on PA RISC C8000
 workstation
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Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>,
	linux-parisc@vger.kernel.org,
	Jeff Kirsher <jeffrey.t.kirsher@intel.com>
To: e1000-devel@lists.sourceforge.net
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Hi all,

I can confirm that I've seen the very same on multiple C8000
workstation too.

Can someone please apply this patch ?

Tested-by: Guy Martin <gmsoft@tuxicoman.be>

Thanks,
  Guy

On Sun, 24 Oct 2010 04:28:59 +0200 (CEST)
Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> wrote:

> Hi
> 
> This is my first patch for my PA RISC C8000 machine: allow to use the 
> onboard NIC.
> 
> Mikulas
> 
> ---
> 
> Allow the driver to be used on PA RISC C8000 workstation
> 
> Search on the internet shows that the checksum field in the EEPROM on
> HPPA is really not a checksum but a signature (different users
> including me found the same mismatching checksum 0x16d6, despite
> their MAC addresses and EEPROM content being different).
> 
> So I allow 0x16d6 (the last word read) as the matching checksum on
> hppa.
> 
> Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
> 
> Index: linux-2.6.36-rc8/drivers/net/e1000/e1000_hw.c
> ===================================================================
> --- linux-2.6.36-rc8.orig/drivers/net/e1000/e1000_hw.c
> 2010-10-24 04:01:03.000000000 +0200 +++
> linux-2.6.36-rc8/drivers/net/e1000/e1000_hw.c	2010-10-24
> 04:25:22.000000000 +0200 @@ -3840,6 +3840,12 @@ s32
> e1000_validate_eeprom_checksum(struc checksum += eeprom_data; }
>  
> +#ifdef __hppa__
> +	/* This seems to be a signature and not a checksum on HP
> c8000 */
> +	if (eeprom_data == 0x16d6)
> +		return E1000_SUCCESS;
> +#endif
> +
>  	if (checksum == (u16) EEPROM_SUM)
>  		return E1000_SUCCESS;
>  	else {
> --
> To unsubscribe from this list: send the line "unsubscribe
> linux-parisc" in the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

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From - Thu Nov 08 21:06:34 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.drivers.e1000.devel
Subject: Re: [PATCH] e1000: Allow the driver to be used on PA RISC C8000
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On Sun, Dec 05, 2010 at 06:04:26PM +0100, Guy Martin wrote:
> Hi all,
> 
> I can confirm that I've seen the very same on multiple C8000
> workstation too.
> 
> Can someone please apply this patch ?
> 
> Tested-by: Guy Martin <gmsoft@tuxicoman.be>
> 

It should be sent via netdev@ so that DaveM can pick it up if the e1000
folks do not...

--Kyle
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From - Thu Nov 08 21:06:34 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc : Remove broken line wrapping handling
 pdc_iodc_print()
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--MP_/qy6Y6qpZWSd123zYwfhZ84k
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Remove the broken line wrapping handling in pdc_iodc_print().
It is broken in 3 ways :
  - It doesn't keep track of the current screen position, it just
    assumes that the new buffer will be printed at the begining of the
    screen.
  - It doesn't take in account that non printable characters won't
    increase the current position on the screen.
  - And last but not least, it triggers a kernel panic if a backspace
    is the first char in the provided buffer :

 Backtrace:
  [<0000000040128ec4>] pdc_console_write+0x44/0x78
  [<0000000040128f18>] pdc_console_tty_write+0x20/0x38
  [<000000004032f1ac>] n_tty_write+0x2a4/0x550
  [<000000004032b158>] tty_write+0x1e0/0x2d8
  [<00000000401bb420>] vfs_write+0xb8/0x188
  [<00000000401bb630>] sys_write+0x68/0xb8
  [<0000000040104eb8>] syscall_exit+0x0/0x14

Most terminals handle the line wrapping just fine. I've confirmed that
it works correctly on a C8000 with both vga and serial output.

Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
--MP_/qy6Y6qpZWSd123zYwfhZ84k
Content-Type: text/x-patch
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename=pdc_iodc_print-cleanup.diff

--- arch/parisc/kernel/firmware.c.orig	2010-12-05 16:42:07.000000000 +0100
+++ arch/parisc/kernel/firmware.c	2010-12-05 17:32:52.000000000 +0100
@@ -1126,15 +1126,13 @@
 	unsigned int i;
 	unsigned long flags;
 
-	for (i = 0; i < count && i < 79;) {
+	for (i = 0; i < count;) {
 		switch(str[i]) {
 		case '\n':
 			iodc_dbuf[i+0] = '\r';
 			iodc_dbuf[i+1] = '\n';
 			i += 2;
 			goto print;
-		case '\b':	/* BS */
-			i--; /* overwrite last */
 		default:
 			iodc_dbuf[i] = str[i];
 			i++;
@@ -1142,15 +1140,6 @@
 		}
 	}
 
-	/* if we're at the end of line, and not already inserting a newline,
-	 * insert one anyway. iodc console doesn't claim to support >79 char
-	 * lines. don't account for this in the return value.
-	 */
-	if (i == 79 && iodc_dbuf[i-1] != '\n') {
-		iodc_dbuf[i+0] = '\r';
-		iodc_dbuf[i+1] = '\n';
-	}

From - Thu Nov 08 21:06:34 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: parisc tree maintainer
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James, Helge,

I'm getting a bit bored of maintaining the parisc trees and such... Do
either of you want to take over? If you do, please reply so that Linus
knows that the next pull request will come from you instead of me.

Thanks,
	Kyle
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It's about time I turned off some of these space heaters and joined the
21st century...

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
---
diff --git a/MAINTAINERS b/MAINTAINERS
index 1a1c27b..d9bd3a1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4505,13 +4505,11 @@ F:	Documentation/blockdev/paride.txt
 F:	drivers/block/paride/
 
 PARISC ARCHITECTURE
-M:	Kyle McMartin <kyle@mcmartin.ca>
 M:	Helge Deller <deller@gmx.de>
 M:	"James E.J. Bottomley" <jejb@parisc-linux.org>
 L:	linux-parisc@vger.kernel.org
 W:	http://www.parisc-linux.org/
 Q:	http://patchwork.kernel.org/project/linux-parisc/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
 S:	Maintained
 F:	arch/parisc/
 F:	drivers/parisc/
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From - Thu Nov 08 21:06:34 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc tree maintainer
Date: Mon, 6 Dec 2010 13:30:40 -0500 (EST)
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To: kyle@mcmartin.ca (Kyle McMartin)
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Hi Kyle,

> I'm getting a bit bored of maintaining the parisc trees and such... Do
> either of you want to take over? If you do, please reply so that Linus
> knows that the next pull request will come from you instead of me.

Thanks for all your work in maintaining the parisc tree.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:34 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Mon, 2010-12-06 at 11:43 -0500, Kyle McMartin wrote:
> I'm getting a bit bored of maintaining the parisc trees and such... Do
> either of you want to take over? If you do, please reply so that Linus
> knows that the next pull request will come from you instead of me.

I suppose I can ... it's not a high volume tree, fortunately.  Thanks
for doing it this long ... although I've got to say, I think continuing
would be good practise for you.

James


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From - Thu Nov 08 21:06:34 2018
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On 12/06/2010 10:53 PM, James Bottomley wrote:
> On Mon, 2010-12-06 at 11:43 -0500, Kyle McMartin wrote:
>> I'm getting a bit bored of maintaining the parisc trees and such... Do
>> either of you want to take over? If you do, please reply so that Linus
>> knows that the next pull request will come from you instead of me.
> I suppose I can ... it's not a high volume tree, fortunately.  Thanks
> for doing it this long ... although I've got to say, I think continuing
> would be good practise for you.

James, thanks for taking that job!
Since our second baby (that time a son) was born just yesterday, I don't 
think I will have much time during the next few weeks at least :-)

Kyle, thanks a lot for all your work up to now.
I hope your interest for parisc will come back again at some point ;-)

Helge
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Hi all,


Recently, swap got broken. When it has to be used, the kernel issue the
following line numerous times :
swap_free: Bad swap offset entry 00100009

It eventually panic with useless backtrace. Note that the offset entry
is always the same number.

This can be reproduced easily by booting with mem=64m and start
compiling something like the kernel.


I've been bisecting this and I found out it has been introduced in
4e60c86bd9e5a7110ed28874d0b6592186550ae8 and to be precise, the
following change in include/linux/mmdebug.h :
-#define VM_BUG_ON(cond) do { } while (0)
+#define VM_BUG_ON(cond) do { (void)(cond); } while (0)


While the above change looks harmless, it introduces a slight change in
mm/swap_state.c:154 in add_to_swap() : VM_BUG_ON(!PageUptodate(page));
If you comment out that line, the problem is gone.

PageUptodate() will call smp_rmb() being the memory barrier instruction.

Those tests were done with linux-2.6.36 and gcc-4.4.4.
Having the feeling that this might have been a gcc bug, I recompiled
the whole kernel with gcc-4.2.4 and the problem was gone.

Looking at the assembly output for add_to_swap(), there is a slight
difference.

- gcc-4.4.4 output :

add_to_swap:
        .PROC
        .CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=4
        .ENTRY
        stw %r2,-20(%r30)
        stw,ma %r4,64(%r30)
        stw %r3,-60(%r30)
        ldw 0(%r26),%r28
        copy %r26,%r3
        ldw 0(%r26),%r28
        bb,>=,n %r28,28,.L61
.L61:   
        b,l get_swap_page,%r2
        ...


- gcc-4.2.4 output :

add_to_swap:
        .PROC
        .CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=4
        .ENTRY
        stw %r2,-20(%r30)
        stw,ma %r4,64(%r30)
        stw %r3,-60(%r30)
        ldw 0(%r26),%r19
        copy %r26,%r3
        ldw 0(%r26),%r28
        extrw,s,>= %r28,28,1,%r0
.L76:   
        b,l get_swap_page,%r2
        ...

As you can see, gcc-4.2 uses extrw while gcc-4.4 uses bb.

What's the next step in order to troubleshoot this ?
Is this really a gcc bug or is the problem elsewhere ?



HTH,
  Guy


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From - Thu Nov 08 21:06:35 2018
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Subject: Re: 2.6.36 regression : swap support broken
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> I've been bisecting this and I found out it has been introduced in
> 4e60c86bd9e5a7110ed28874d0b6592186550ae8 and to be precise, the
> following change in include/linux/mmdebug.h :
> -#define VM_BUG_ON(cond) do { } while (0)
> +#define VM_BUG_ON(cond) do { (void)(cond); } while (0)
> 
> 
> While the above change looks harmless, it introduces a slight change in
> mm/swap_state.c:154 in add_to_swap() : VM_BUG_ON(!PageUptodate(page));
> If you comment out that line, the problem is gone.
> 
> PageUptodate() will call smp_rmb() being the memory barrier instruction.
> 
> Those tests were done with linux-2.6.36 and gcc-4.4.4.
> Having the feeling that this might have been a gcc bug, I recompiled
> the whole kernel with gcc-4.2.4 and the problem was gone.
> 
> Looking at the assembly output for add_to_swap(), there is a slight
> difference.
> 
> - gcc-4.4.4 output :
> 
> add_to_swap:
>         .PROC
>         .CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=4
>         .ENTRY
>         stw %r2,-20(%r30)
>         stw,ma %r4,64(%r30)
>         stw %r3,-60(%r30)
>         ldw 0(%r26),%r28
>         copy %r26,%r3
>         ldw 0(%r26),%r28
>         bb,>=,n %r28,28,.L61
> .L61:   
>         b,l get_swap_page,%r2
>         ...

Hmmm, I didn't think we allowed call instructions in the delay slot of
a branch.  Even though nullified, I think there were issues on some
processors.  Is an asm involved?

> - gcc-4.2.4 output :
> 
> add_to_swap:
>         .PROC
>         .CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=4
>         .ENTRY
>         stw %r2,-20(%r30)
>         stw,ma %r4,64(%r30)
>         stw %r3,-60(%r30)
>         ldw 0(%r26),%r19
>         copy %r26,%r3
>         ldw 0(%r26),%r28
>         extrw,s,>= %r28,28,1,%r0
> .L76:   
>         b,l get_swap_page,%r2
>         ...

This is almost certainly wrong as it will skip the call when bit 28 is zero.

Would you please send preprocessed source?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, 12 Dec 2010, Guy Martin wrote:

> On Sun, 12 Dec 2010 14:21:47 -0500 (EST)
> "John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:
> 
> > Hmmm, I didn't think we allowed call instructions in the delay slot of
> > a branch.  Even though nullified, I think there were issues on some
> > processors.  Is an asm involved?
> 
> I forgot to say that I've been testing this on my C3600.
> What do you mean by "Is an asm involved?" ?

Internally, the PA backend keeps track of "insn" types using an attribute
mechanism.  This is what keeps calls out of the delay slot of branches, etc.

asms can do stuff that GCC doesn't know about and this can cause
wrong code issues.  I was just speculating.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:35 2018
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Subject: Re: 2.6.36 regression : swap support broken
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On Sun, 12 Dec 2010, John David Anglin wrote:

> On Sun, 12 Dec 2010, Guy Martin wrote:
> 
> > On Sun, 12 Dec 2010 14:21:47 -0500 (EST)
> > "John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:
> > 
> > > Hmmm, I didn't think we allowed call instructions in the delay slot of
> > > a branch.  Even though nullified, I think there were issues on some
> > > processors.  Is an asm involved?
> > 
> > I forgot to say that I've been testing this on my C3600.
> > What do you mean by "Is an asm involved?" ?
> 
> Internally, the PA backend keeps track of "insn" types using an attribute
> mechanism.  This is what keeps calls out of the delay slot of branches, etc.
> 
> asms can do stuff that GCC doesn't know about and this can cause
> wrong code issues.  I was just speculating.

This is a GCC PA bug.  The code generation is wrong for this RTL:

(jump_insn 13 10 14 (set (pc)
        (if_then_else (eq (zero_extract:SI (reg:SI 28 %r28 [orig:100 D.22506 ] [100])
		    (const_int 1 [0x1])
		    (const_int 28 [0x1c]))
		(const_int 0 [0]))
	    (label_ref 16)
	    (pc))) include/linux/page-flags.h:297 29 {*pa.md:1610}
     (expr_list:REG_BR_PRED (const_int 5 [0x5])
        (expr_list:REG_DEAD (reg:SI 28 %r28 [orig:100 D.22506 ] [100])
	    (expr_list:REG_BR_PROB (const_int 5000 [0x1388])
		(nil))))
 -> 16)

(note 14 13 15 [bb 3] NOTE_INSN_BASIC_BLOCK)

(insn:TI 15 14 16 (parallel [
            (asm_operands/v ("") ("") 0 []
		 []
		 [] mm/swap_state.c:185)
	    (clobber (mem:BLK (scratch) [0 A8]))
	]) include/linux/page-flags.h:298 -1
    (nil))

(code_label 16 15 17 15 "" [1 uses])

(note 17 16 19 [bb 4] NOTE_INSN_BASIC_BLOCK)

(note 19 17 107 NOTE_INSN_DELETED)

(insn 107 19 122 (sequence [
            (call_insn:TI 18 19 4 (parallel [
			(set (reg:SI 28 %r28)
			    (call (mem:SI (symbol_ref/v:SI ("@get_swap_page") [flags 0x41]  <function_decl 0x40ae6280 get_swap_page>) [0 S4 A32])
...

The output_bb code used for jump_insn 13 is confused by the memory
clobber asm.  There should be a nop after the bb instruction as a
conditional branch to the following instruction is asking for disaster.
Some situations where a nop is needed are already covered, but you
have found a new one.

I created a GCC PR:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46915

This may affect other conditional branches...

Dave
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> (insn:TI 15 14 16 (parallel [
>             (asm_operands/v ("") ("") 0 []
> 		 []
> 		 [] mm/swap_state.c:185)
> 	    (clobber (mem:BLK (scratch) [0 A8]))
> 	]) include/linux/page-flags.h:298 -1
>     (nil))

I think the way to avoid this in the kernel is to stick a "nop" in
the memory barrier.  That will avoid a zero length asm and branching
into the delay slot.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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> > (insn:TI 15 14 16 (parallel [
> >             (asm_operands/v ("") ("") 0 []
> > 		 []
> > 		 [] mm/swap_state.c:185)
> > 	    (clobber (mem:BLK (scratch) [0 A8]))
> > 	]) include/linux/page-flags.h:298 -1
> >     (nil))
> 
> I think the way to avoid this in the kernel is to stick a "nop" in
> the memory barrier.  That will avoid a zero length asm and branching
> into the delay slot.

A further reason is GCC does not know the length of asm insns.  So,
using a zero length asm on parisc is asking for trouble.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Dec 12, 2010 at 7:03 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> > (insn:TI 15 14 16 (parallel [
>> > =A0 =A0 =A0 =A0 =A0 =A0 (asm_operands/v ("") ("") 0 []
>> > =A0 =A0 =A0 =A0 =A0 =A0 =A0[]
>> > =A0 =A0 =A0 =A0 =A0 =A0 =A0[] mm/swap_state.c:185)
>> > =A0 =A0 =A0 =A0 (clobber (mem:BLK (scratch) [0 A8]))
>> > =A0 =A0 ]) include/linux/page-flags.h:298 -1
>> > =A0 =A0 (nil))
>>
>> I think the way to avoid this in the kernel is to stick a "nop" in
>> the memory barrier. =A0That will avoid a zero length asm and branchi=
ng
>> into the delay slot.
>
> A further reason is GCC does not know the length of asm insns. =A0So,
> using a zero length asm on parisc is asking for trouble.

The problem is that many applications (including glibc IIRC) expect a
zero length asm volatile to work correctly. Althought it's asking for
trouble, I think it's one of these expected things that just has to
work :-)

Cheers,
Carlos.
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From - Thu Nov 08 21:06:35 2018
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Subject: Re: 2.6.36 regression : swap support broken
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In-Reply-To: <AANLkTi=5zJeqGSp7QpscVN6k8D-d2NhknzGJmxd8mWcZ@mail.gmail.com> from "Carlos O'Donell" at Dec 13, 2010 07:52:02 am
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> >> I think the way to avoid this in the kernel is to stick a "nop" in
> >> the memory barrier. =A0That will avoid a zero length asm and branching
> >> into the delay slot.

This adds about 17000 odd nops ;(

> > A further reason is GCC does not know the length of asm insns. =A0So,
> > using a zero length asm on parisc is asking for trouble.
> 
> The problem is that many applications (including glibc IIRC) expect a
> zero length asm volatile to work correctly. Althought it's asking for
> trouble, I think it's one of these expected things that just has to
> work :-)

Most targets don't have to deal with delay branch sequences and the
fact that the hardware can't deal with a branch to the delay slot.

As I have learned this morning, the length calculated for asms is just
an estimate.  It can be confused by comments, etc.  So, gcc is going to
have to add a nop when it finds an asm after a branch because the size
estimate is unreliable.

I had tried to fix this before but missed the asm_operands case.  The
branch type selection (useskip) also needs to check for asms ;(

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:36 2018
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On Mon, Dec 13, 2010 at 8:06 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> >> I think the way to avoid this in the kernel is to stick a "nop" i=
n
>> >> the memory barrier. =3DA0That will avoid a zero length asm and br=
anching
>> >> into the delay slot.
>
> This adds about 17000 odd nops ;(
>
>> > A further reason is GCC does not know the length of asm insns. =3D=
A0So,
>> > using a zero length asm on parisc is asking for trouble.
>>
>> The problem is that many applications (including glibc IIRC) expect =
a
>> zero length asm volatile to work correctly. Althought it's asking fo=
r
>> trouble, I think it's one of these expected things that just has to
>> work :-)
>
> Most targets don't have to deal with delay branch sequences and the
> fact that the hardware can't deal with a branch to the delay slot.
>
> As I have learned this morning, the length calculated for asms is jus=
t
> an estimate. =A0It can be confused by comments, etc. =A0So, gcc is go=
ing to
> have to add a nop when it finds an asm after a branch because the siz=
e
> estimate is unreliable.
>
> I had tried to fix this before but missed the asm_operands case. =A0T=
he
> branch type selection (useskip) also needs to check for asms ;(

=46or the record I have noticed at least 3 failures in branch delay
slots over the past few years, all fixed by -fno-dbr (sp?), so it's
quite possible these were the same problem?

Cheers,
Carlos.
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Joe Perches (5):
  ste_dma40.c: Use vsprintf extension %pR for struct resource
  lba_pci.c: Use vsprintf extension %pR for struct resource
  samsung.c: Use vsprintf extension %pR for struct resource
  mx3fb.c: Use vsprintf extension %pR for struct resource
  ml403-ac97cr.c: Use vsprintf extension %pR for struct resource

 drivers/dma/ste_dma40.c      |    5 ++---
 drivers/parisc/lba_pci.c     |   13 +++++--------
 drivers/serial/samsung.c     |    2 +-
 drivers/video/mx3fb.c        |    3 +--
 sound/drivers/ml403-ac97cr.c |    4 ++--
 5 files changed, 11 insertions(+), 16 deletions(-)

-- 
1.7.3.3.398.g0b0cd.dirty

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From: Joe Perches <joe@perches.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 2/5] parisc: lba_pci: Use vsprintf extension %pR for struct resource
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Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/parisc/lba_pci.c |   13 +++++--------
 1 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 3aeb327..b1b6644 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -749,24 +749,21 @@ lba_fixup_bus(struct pci_bus *bus)
 				continue;
 
 			if (res->flags & IORESOURCE_IO) {
-				DBG("lba_fixup_bus() I/O Ports [%lx/%lx] -> ",
-					res->start, res->end);
+				DBG("lba_fixup_bus() I/O Ports [%pR] -> ", res);
 				res->start |= lba_portbase;
 				res->end   |= lba_portbase;
-				DBG("[%lx/%lx]\n", res->start, res->end);
+				DBG("[%pR]\n", res);
 			} else if (res->flags & IORESOURCE_MEM) {
 				/*
 				** Convert PCI (IO_VIEW) addresses to
 				** processor (PA_VIEW) addresses
 				 */
-				DBG("lba_fixup_bus() MMIO [%lx/%lx] -> ",
-					res->start, res->end);
+				DBG("lba_fixup_bus() MMIO [%pR] -> ", res);
 				res->start = PCI_HOST_ADDR(HBA_DATA(ldev), res->start);
 				res->end   = PCI_HOST_ADDR(HBA_DATA(ldev), res->end);
-				DBG("[%lx/%lx]\n", res->start, res->end);
+				DBG("[%pR]\n", res);
 			} else {
-				DBG("lba_fixup_bus() WTF? 0x%lx [%lx/%lx] XXX",
-					res->flags, res->start, res->end);
+				DBG("lba_fixup_bus() WTF? [%pR] XXX", res);
 			}
 
 			/*
-- 
1.7.3.3.398.g0b0cd.dirty


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From - Thu Nov 08 21:06:36 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: PA caches (was: C8000 cpu upgrade problem)
Date: Sat, 18 Dec 2010 15:13:21 -0500
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To: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
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On Tue, 26 Oct 2010, Mikulas Patocka wrote:

> > our cache flushing is a bit... suboptimal right now (doing whole cache
> > flushes on fork and such.)
> 
> What is exactly the problem there? Could you describe it or refer to some 
> document that describes it? Why do you need to flush on fork?

Discussed here:
http://lkml.org/lkml/2003/12/15/244

Flush should not be needed according to Lamont.

However COW handling is broken.  See minifail bug on wiki:
http://wiki.parisc-linux.org/TestCases

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:36 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: parisc: flush pages through tmpalias space
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The kernel has an 8M tmpailas space (originally designed for copying
and clearing pages but now only used for clearing).  The idea is
to place zeros into the cache above a physical page rather than into
the physical page and flush the cache, because often the zeros end up
being replaced quickly anyway.

We can also use the tmpalias space for flushing a page.  The difference
here is that we have to do tmpalias processing in the non access data and
instruction traps.  The principle is the same: as long as we know the physical
address and have a virtual address congruent to the real one, the flush will
be effective.

In order to use the tmpalias space, the icache miss path has to be enhanced to
check for the alias region to make the fic instruction effective.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 arch/parisc/include/asm/cacheflush.h |    7 +-
 arch/parisc/kernel/cache.c           |  109 +++-------------
 arch/parisc/kernel/entry.S           |  194 ++++++++++++++++++++-------
 arch/parisc/kernel/pacache.S         |  245 +++++++++++++++-------------------
 4 files changed, 272 insertions(+), 283 deletions(-)

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index f388a85..dc9286a 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -26,8 +26,6 @@ void flush_user_dcache_range_asm(unsigned long, unsigned long);
 void flush_kernel_dcache_range_asm(unsigned long, unsigned long);
 void flush_kernel_dcache_page_asm(void *);
 void flush_kernel_icache_page(void *);
-void flush_user_dcache_page(unsigned long);
-void flush_user_icache_page(unsigned long);
 void flush_user_dcache_range(unsigned long, unsigned long);
 void flush_user_icache_range(unsigned long, unsigned long);
 
@@ -90,12 +88,15 @@ void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end);
 
+/* defined in pacache.S exported in cache.c used by flush_anon_page */
+void flush_dcache_page_asm(unsigned long phys_addr, unsigned long vaddr);
+
 #define ARCH_HAS_FLUSH_ANON_PAGE
 static inline void
 flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr)
 {
 	if (PageAnon(page))
-		flush_user_dcache_page(vmaddr);
+		flush_dcache_page_asm(page_to_phys(page), vmaddr);
 }
 
 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index d054f3d..3f11331 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -27,12 +27,17 @@
 #include <asm/pgalloc.h>
 #include <asm/processor.h>
 #include <asm/sections.h>
+#include <asm/shmparam.h>
 
 int split_tlb __read_mostly;
 int dcache_stride __read_mostly;
 int icache_stride __read_mostly;
 EXPORT_SYMBOL(dcache_stride);
 
+void flush_dcache_page_asm(unsigned long phys_addr, unsigned long vaddr);
+EXPORT_SYMBOL(flush_dcache_page_asm);
+void flush_icache_page_asm(unsigned long phys_addr, unsigned long vaddr);
+
 
 /* On some machines (e.g. ones with the Merced bus), there can be
  * only a single PxTLB broadcast at a time; this must be guaranteed
@@ -259,81 +264,13 @@ void disable_sr_hashing(void)
 		panic("SpaceID hashing is still on!\n");
 }
 
-/* Simple function to work out if we have an existing address translation
- * for a user space vma. */
-static inline int translation_exists(struct vm_area_struct *vma,
-				unsigned long addr, unsigned long pfn)
-{
-	pgd_t *pgd = pgd_offset(vma->vm_mm, addr);
-	pmd_t *pmd;
-	pte_t pte;
-
-	if(pgd_none(*pgd))
-		return 0;
-
-	pmd = pmd_offset(pgd, addr);
-	if(pmd_none(*pmd) || pmd_bad(*pmd))
-		return 0;
-
-	/* We cannot take the pte lock here: flush_cache_page is usually
-	 * called with pte lock already held.  Whereas flush_dcache_page
-	 * takes flush_dcache_mmap_lock, which is lower in the hierarchy:
-	 * the vma itself is secure, but the pte might come or go racily.
-	 */
-	pte = *pte_offset_map(pmd, addr);
-	/* But pte_unmap() does nothing on this architecture */
-
-	/* Filter out coincidental file entries and swap entries */
-	if (!(pte_val(pte) & (_PAGE_FLUSH|_PAGE_PRESENT)))
-		return 0;
-
-	return pte_pfn(pte) == pfn;
-}
-
-/* Private function to flush a page from the cache of a non-current
- * process.  cr25 contains the Page Directory of the current user
- * process; we're going to hijack both it and the user space %sr3 to
- * temporarily make the non-current process current.  We have to do
- * this because cache flushing may cause a non-access tlb miss which
- * the handlers have to fill in from the pgd of the non-current
- * process. */
 static inline void
-flush_user_cache_page_non_current(struct vm_area_struct *vma,
-				  unsigned long vmaddr)
+__flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
+		   unsigned long physaddr)
 {
-	/* save the current process space and pgd */
-	unsigned long space = mfsp(3), pgd = mfctl(25);
-
-	/* we don't mind taking interrupts since they may not
-	 * do anything with user space, but we can't
-	 * be preempted here */
-	preempt_disable();
-
-	/* make us current */
-	mtctl(__pa(vma->vm_mm->pgd), 25);
-	mtsp(vma->vm_mm->context, 3);
-
-	flush_user_dcache_page(vmaddr);
-	if(vma->vm_flags & VM_EXEC)
-		flush_user_icache_page(vmaddr);
-
-	/* put the old current process back */
-	mtsp(space, 3);
-	mtctl(pgd, 25);
-	preempt_enable();
-}
-
-
-static inline void
-__flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
-{
-	if (likely(vma->vm_mm->context == mfsp(3))) {
-		flush_user_dcache_page(vmaddr);
-		if (vma->vm_flags & VM_EXEC)
-			flush_user_icache_page(vmaddr);
-	} else {
-		flush_user_cache_page_non_current(vma, vmaddr);
-	}
+	flush_dcache_page_asm(physaddr, vmaddr);
+	if (vma->vm_flags & VM_EXEC)
+		flush_icache_page_asm(physaddr, vmaddr);
 }
 
 void flush_dcache_page(struct page *page)
@@ -342,10 +279,8 @@ void flush_dcache_page(struct page *page)
 	struct vm_area_struct *mpnt;
 	struct prio_tree_iter iter;
 	unsigned long offset;
-	unsigned long addr;
+	unsigned long addr, old_addr = 0;
 	pgoff_t pgoff;
-	unsigned long pfn = page_to_pfn(page);
-
 
 	if (mapping && !mapping_mapped(mapping)) {
 		set_bit(PG_dcache_dirty, &page->flags);
@@ -369,20 +304,11 @@ void flush_dcache_page(struct page *page)
 		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
 		addr = mpnt->vm_start + offset;
 
-		/* Flush instructions produce non access tlb misses.
-		 * On PA, we nullify these instructions rather than
-		 * taking a page fault if the pte doesn't exist.
-		 * This is just for speed.  If the page translation
-		 * isn't there, there's no point exciting the
-		 * nadtlb handler into a nullification frenzy.
-		 *
-		 * Make sure we really have this page: the private
-		 * mappings may cover this area but have COW'd this
-		 * particular page.
-		 */
-  		if (translation_exists(mpnt, addr, pfn)) {
-			__flush_cache_page(mpnt, addr);
-			break;
+		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
+			__flush_cache_page(mpnt, addr, page_to_phys(page));
+			if (old_addr)
+				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
+			old_addr = addr;
 		}
 	}
 	flush_dcache_mmap_unlock(mapping);
@@ -573,7 +499,6 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 {
 	BUG_ON(!vma->vm_mm->context);
 
-	if (likely(translation_exists(vma, vmaddr, pfn)))
-		__flush_cache_page(vma, vmaddr);
+	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 6337ade..564606d 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -225,22 +225,13 @@
 #ifndef CONFIG_64BIT
 	/*
 	 * naitlb miss interruption handler (parisc 1.1 - 32 bit)
-	 *
-	 * Note: naitlb misses will be treated
-	 * as an ordinary itlb miss for now.
-	 * However, note that naitlb misses
-	 * have the faulting address in the
-	 * IOR/ISR.
 	 */
 
 	.macro	naitlb_11 code
 
 	mfctl	%isr,spc
-	b	itlb_miss_11
+	b	naitlb_miss_11
 	mfctl 	%ior,va
-	/* FIXME: If user causes a naitlb miss, the priv level may not be in
-	 * lower bits of va, where the itlb miss handler is expecting them
-	 */
 
 	.align		32
 	.endm
@@ -248,26 +239,17 @@
 	
 	/*
 	 * naitlb miss interruption handler (parisc 2.0)
-	 *
-	 * Note: naitlb misses will be treated
-	 * as an ordinary itlb miss for now.
-	 * However, note that naitlb misses
-	 * have the faulting address in the
-	 * IOR/ISR.
 	 */
 
 	.macro	naitlb_20 code
 
 	mfctl	%isr,spc
 #ifdef CONFIG_64BIT
-	b       itlb_miss_20w
+	b       naitlb_miss_20w
 #else
-	b	itlb_miss_20
+	b	naitlb_miss_20
 #endif
 	mfctl 	%ior,va
-	/* FIXME: If user causes a naitlb miss, the priv level may not be in
-	 * lower bits of va, where the itlb miss handler is expecting them
-	 */
 
 	.align		32
 	.endm
@@ -581,7 +563,24 @@
 	copy		\va,\tmp1
 	depi		0,31,23,\tmp1
 	cmpb,COND(<>),n	\tmp,\tmp1,\fault
-	ldi		(_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot
+	mfctl		%cr19,\tmp	/* iir */
+	/* get the opcode (first six bits) into \tmp */
+	extrw,u		\tmp,5,6,\tmp
+	/*
+	 * Only setting the T bit prevents data cache movein
+	 * Setting access rights to zero prevents instruction cache movein
+	 *
+	 * Note subtlety here: _PAGE_GATEWAY, _PAGE_EXEC and _PAGE_WRITE go
+	 * to type field and _PAGE_READ goes to top bit of PL1
+	 */ 
+	ldi		(_PAGE_REFTRAP|_PAGE_READ|_PAGE_WRITE),\prot
+	/*
+	 * so if the opcode is one (i.e. this is a memory management
+	 * instruction) nullify the next load so \prot is only T.
+	 * Otherwise this is a normal data operation
+	 */ 
+	cmpiclr,=	0x01,\tmp,%r0
+	ldi		(_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
 	depd,z		\prot,8,7,\prot
 	/*
 	 * OK, it is in the temp alias region, check whether "from" or "to".
@@ -631,11 +630,7 @@ ENTRY(fault_vector_20)
 	def		13
 	def		14
 	dtlb_20		15
-#if 0
 	naitlb_20	16
-#else
-	def             16
-#endif
 	nadtlb_20	17
 	def		18
 	def		19
@@ -678,11 +673,7 @@ ENTRY(fault_vector_11)
 	def		13
 	def		14
 	dtlb_11		15
-#if 0
 	naitlb_11	16
-#else
-	def             16
-#endif
 	nadtlb_11	17
 	def		18
 	def		19
@@ -1203,7 +1194,7 @@ nadtlb_miss_20w:
 	get_pgd		spc,ptp
 	space_check	spc,t0,nadtlb_fault
 
-	L3_ptep		ptp,pte,t0,va,nadtlb_check_flush_20w
+	L3_ptep		ptp,pte,t0,va,nadtlb_check_alias_20w
 
 	update_ptep	ptp,pte,t0,t1
 
@@ -1214,6 +1205,14 @@ nadtlb_miss_20w:
 	rfir
 	nop
 
+nadtlb_check_alias_20w:
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_check_flush_20w
+
+	idtlbt          pte,prot
+
+	rfir
+	nop
+
 nadtlb_check_flush_20w:
 	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
 
@@ -1255,25 +1254,7 @@ dtlb_miss_11:
 	nop
 
 dtlb_check_alias_11:
-
-	/* Check to see if fault is in the temporary alias region */
-
-	cmpib,<>,n      0,spc,dtlb_fault /* forward */
-	ldil            L%(TMPALIAS_MAP_START),t0
-	copy            va,t1
-	depwi           0,31,23,t1
-	cmpb,<>,n       t0,t1,dtlb_fault /* forward */
-	ldi             (_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),prot
-	depw,z          prot,8,7,prot
-
-	/*
-	 * OK, it is in the temp alias region, check whether "from" or "to".
-	 * Check "subtle" note in pacache.S re: r23/r26.
-	 */
-
-	extrw,u,=       va,9,1,r0
-	or,tr           %r23,%r0,pte    /* If "from" use "from" page */
-	or              %r26,%r0,pte    /* else "to", use "to" page  */
+	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault
 
 	idtlba          pte,(va)
 	idtlbp          prot,(va)
@@ -1286,7 +1267,7 @@ nadtlb_miss_11:
 
 	space_check	spc,t0,nadtlb_fault
 
-	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_11
+	L2_ptep		ptp,pte,t0,va,nadtlb_check_alias_11
 
 	update_ptep	ptp,pte,t0,t1
 
@@ -1304,6 +1285,15 @@ nadtlb_miss_11:
 	rfir
 	nop
 
+nadtlb_check_alias_11:
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_check_flush_11
+
+	idtlba          pte,(va)
+	idtlbp          prot,(va)
+
+	rfir
+	nop
+
 nadtlb_check_flush_11:
 	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
 
@@ -1359,7 +1349,7 @@ nadtlb_miss_20:
 
 	space_check	spc,t0,nadtlb_fault
 
-	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_20
+	L2_ptep		ptp,pte,t0,va,nadtlb_check_alias_20
 
 	update_ptep	ptp,pte,t0,t1
 
@@ -1372,6 +1362,14 @@ nadtlb_miss_20:
 	rfir
 	nop
 
+nadtlb_check_alias_20:
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_check_flush_20
+	
+	idtlbt          pte,prot
+
+	rfir
+	nop
+
 nadtlb_check_flush_20:
 	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
 
@@ -1484,6 +1482,36 @@ itlb_miss_20w:
 	rfir
 	nop
 
+naitlb_miss_20w:
+
+	/*
+	 * I miss is a little different, since we allow users to fault
+	 * on the gateway page which is in the kernel address space.
+	 */
+
+	space_adjust	spc,va,t0
+	get_pgd		spc,ptp
+	space_check	spc,t0,naitlb_fault
+
+	L3_ptep		ptp,pte,t0,va,naitlb_check_alias_20w
+
+	update_ptep	ptp,pte,t0,t1
+
+	make_insert_tlb	spc,pte,prot
+	
+	iitlbt          pte,prot
+
+	rfir
+	nop
+
+naitlb_check_alias_20w:
+	do_alias	spc,t0,t1,va,pte,prot,naitlb_fault
+
+	iitlbt		pte,prot
+
+	rfir
+	nop
+
 #else
 
 itlb_miss_11:
@@ -1508,6 +1536,38 @@ itlb_miss_11:
 	rfir
 	nop
 
+naitlb_miss_11:
+	get_pgd		spc,ptp
+
+	space_check	spc,t0,naitlb_fault
+
+	L2_ptep		ptp,pte,t0,va,naitlb_check_alias_11
+
+	update_ptep	ptp,pte,t0,t1
+
+	make_insert_tlb_11	spc,pte,prot
+
+	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
+	mtsp		spc,%sr1
+
+	iitlba		pte,(%sr1,va)
+	iitlbp		prot,(%sr1,va)
+
+	mtsp		t0, %sr1	/* Restore sr1 */
+
+	rfir
+	nop
+
+naitlb_check_alias_11:
+	do_alias	spc,t0,t1,va,pte,prot,itlb_fault
+
+	iitlba          pte,(%sr0, va)
+	iitlbp          prot,(%sr0, va)
+
+	rfir
+	nop
+	
+
 itlb_miss_20:
 	get_pgd		spc,ptp
 
@@ -1526,6 +1586,32 @@ itlb_miss_20:
 	rfir
 	nop
 
+naitlb_miss_20:
+	get_pgd		spc,ptp
+
+	space_check	spc,t0,naitlb_fault
+
+	L2_ptep		ptp,pte,t0,va,naitlb_check_alias_20
+
+	update_ptep	ptp,pte,t0,t1
+
+	make_insert_tlb	spc,pte,prot
+
+	f_extend	pte,t0	
+
+	iitlbt          pte,prot
+
+	rfir
+	nop
+
+naitlb_check_alias_20:
+	do_alias	spc,t0,t1,va,pte,prot,naitlb_fault
+	
+	iitlbt          pte,prot
+
+	rfir
+	nop
+
 #endif
 
 #ifdef CONFIG_64BIT
@@ -1662,6 +1748,10 @@ nadtlb_fault:
 	b               intr_save
 	ldi             17,%r8
 
+naitlb_fault:
+	b               intr_save
+	ldi             16,%r8
+
 dtlb_fault:
 	b               intr_save
 	ldi             15,%r8
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 09b77b2..881b287 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -608,93 +608,131 @@ ENTRY(__clear_user_page_asm)
 	.procend
 ENDPROC(__clear_user_page_asm)
 
-ENTRY(flush_kernel_dcache_page_asm)
+ENTRY(flush_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
 
+	ldil		L%(TMPALIAS_MAP_START), %r28
+#ifdef CONFIG_64BIT
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+	/* FIXME: page size dependend */
+#endif
+	extrd,u		%r26, 56,32, %r26	/* convert phys addr to tlb insert format */
+	depd		%r25, 63,22, %r28	/* Form aliased virtual address 'to' */
+	depdi		0, 63,12, %r28		/* Clear any offset bits */
+#else
+	extrw,u		%r26, 24,25, %r26	/* convert phys addr to tlb insert format */
+	depw		%r25, 31,22, %r28	/* Form aliased virtual address 'to' */
+	depwi		0, 31,12, %r28		/* Clear any offset bits */
+#endif
+
+	/* Purge any old translation */
+
+	pdtlb		0(%r28)
+
 	ldil		L%dcache_stride, %r1
-	ldw		R%dcache_stride(%r1), %r23
+	ldw		R%dcache_stride(%r1), %r1
 
 #ifdef CONFIG_64BIT
 	depdi,z		1, 63-PAGE_SHIFT,1, %r25
 #else
 	depwi,z		1, 31-PAGE_SHIFT,1, %r25
 #endif
-	add		%r26, %r25, %r25
-	sub		%r25, %r23, %r25
-
-
-1:      fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	fdc,m		%r23(%r26)
-	cmpb,COND(<<)		%r26, %r25,1b
-	fdc,m		%r23(%r26)
+	add		%r28, %r25, %r25
+	sub		%r25, %r1, %r25
+	
 
+1:      fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	fdc,m		%r1(%r28)
+	cmpb,COND(<<)		%r28, %r25,1b
+	fdc,m		%r1(%r28)
+	
 	sync
 	bv		%r0(%r2)
-	nop
+	pdtlb		(%r25)
 	.exit
 
 	.procend
-ENDPROC(flush_kernel_dcache_page_asm)
-	
-ENTRY(flush_user_dcache_page)
+ENDPROC(flush_dcache_page_asm)
+
+ENTRY(flush_icache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
 
-	ldil		L%dcache_stride, %r1
-	ldw		R%dcache_stride(%r1), %r23
-
+	ldil		L%(TMPALIAS_MAP_START), %r28
 #ifdef CONFIG_64BIT
-	depdi,z		1,63-PAGE_SHIFT,1, %r25
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+	/* FIXME: page size dependend */
+#endif
+	extrd,u		%r26, 56,32, %r26	/* convert phys addr to tlb insert format */
+	depd		%r25, 63,22, %r28	/* Form aliased virtual address 'to' */
+	depdi		0, 63,12, %r28		/* Clear any offset bits */
 #else
-	depwi,z		1,31-PAGE_SHIFT,1, %r25
+	extrw,u		%r26, 24,25, %r26	/* convert phys addr to tlb insert format */
+	depw		%r25, 31,22, %r28	/* Form aliased virtual address 'to' */
+	depwi		0, 31,12, %r28		/* Clear any offset bits */
 #endif
-	add		%r26, %r25, %r25
-	sub		%r25, %r23, %r25
 
+	/* Purge any old translation */
 
-1:      fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	fdc,m		%r23(%sr3, %r26)
-	cmpb,COND(<<)		%r26, %r25,1b
-	fdc,m		%r23(%sr3, %r26)
+	pitlb		(%sr0,%r28)
 
+	ldil		L%icache_stride, %r1
+	ldw		R%icache_stride(%r1), %r1
+
+#ifdef CONFIG_64BIT
+	depdi,z		1, 63-PAGE_SHIFT,1, %r25
+#else
+	depwi,z		1, 31-PAGE_SHIFT,1, %r25
+#endif
+	add		%r28, %r25, %r25
+	sub		%r25, %r1, %r25
+	
+
+1:      fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	fic,m		%r1(%r28)
+	cmpb,COND(<<)		%r28, %r25,1b
+	fic,m		%r1(%r28)
+	
 	sync
 	bv		%r0(%r2)
-	nop
+	pitlb		(%sr0,%r25)
 	.exit
 
 	.procend
-ENDPROC(flush_user_dcache_page)
+ENDPROC(flush_icache_page_asm)
 
-ENTRY(flush_user_icache_page)
+ENTRY(flush_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -711,23 +749,23 @@ ENTRY(flush_user_icache_page)
 	sub		%r25, %r23, %r25
 
 
-1:      fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
-	fic,m		%r23(%sr3, %r26)
+1:      fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
+	fdc,m		%r23(%r26)
 	cmpb,COND(<<)		%r26, %r25,1b
-	fic,m		%r23(%sr3, %r26)
+	fdc,m		%r23(%r26)
 
 	sync
 	bv		%r0(%r2)
@@ -735,8 +773,7 @@ ENTRY(flush_user_icache_page)
 	.exit
 
 	.procend
-ENDPROC(flush_user_icache_page)
-
+ENDPROC(flush_kernel_dcache_page_asm)
 
 ENTRY(purge_kernel_dcache_page)
 	.proc
@@ -780,69 +817,6 @@ ENTRY(purge_kernel_dcache_page)
 	.procend
 ENDPROC(purge_kernel_dcache_page)
 
-#if 0
-	/* Currently not used, but it still is a possible alternate
-	 * solution.
-	 */
-
-ENTRY(flush_alias_page)
-	.proc
-	.callinfo NO_CALLS
-	.entry
-
-	tophys_r1		%r26
-
-	ldil		L%(TMPALIAS_MAP_START), %r28
-#ifdef CONFIG_64BIT
-	extrd,u		%r26, 56,32, %r26	/* convert phys addr to tlb insert format */
-	depd		%r25, 63,22, %r28	/* Form aliased virtual address 'to' */
-	depdi		0, 63,12, %r28		/* Clear any offset bits */
-#else
-	extrw,u		%r26, 24,25, %r26	/* convert phys addr to tlb insert format */
-	depw		%r25, 31,22, %r28	/* Form aliased virtual address 'to' */
-	depwi		0, 31,12, %r28		/* Clear any offset bits */
-#endif
-
-	/* Purge any old translation */
-
-	pdtlb		0(%r28)
-
-	ldil		L%dcache_stride, %r1
-	ldw		R%dcache_stride(%r1), %r23
-
-#ifdef CONFIG_64BIT
-	depdi,z		1, 63-PAGE_SHIFT,1, %r29
-#else
-	depwi,z		1, 31-PAGE_SHIFT,1, %r29
-#endif
-	add		%r28, %r29, %r29
-	sub		%r29, %r23, %r29
-
-1:      fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	fdc,m		%r23(%r28)
-	cmpb,COND(<<)		%r28, %r29, 1b
-	fdc,m		%r23(%r28)
-
-	sync
-	bv		%r0(%r2)
-	nop
-	.exit

From - Thu Nov 08 21:06:36 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] eliminate special FLUSH flag from page table
Date: Wed, 22 Dec 2010 10:24:36 -0600
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Approved: news@gmane.org
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To: Parisc List <linux-parisc@vger.kernel.org>
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This was used to flush a region even if the page table entry had been
cleared.  In theory this was never necessary, but now we've switched to
alias based flushing, the whole set of code associated with it can be dumped.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

---
 arch/parisc/include/asm/pgtable.h |   14 ++------
 arch/parisc/kernel/entry.S        |   61 ++-----------------------------------
 2 files changed, 7 insertions(+), 68 deletions(-)

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 865f37a..f3c0973 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -136,8 +136,7 @@
 #define _PAGE_NO_CACHE_BIT 24   /* (0x080) Uncached Page (U bit) */
 #define _PAGE_ACCESSED_BIT 23   /* (0x100) Software: Page Accessed */
 #define _PAGE_PRESENT_BIT  22   /* (0x200) Software: translation valid */
-#define _PAGE_FLUSH_BIT    21   /* (0x400) Software: translation valid */
-				/*             for cache flushing only */
+/* bit 21 was formerly the FLUSH bit but is now unused */
 #define _PAGE_USER_BIT     20   /* (0x800) Software: User accessible page */
 
 /* N.B. The bits are defined in terms of a 32 bit word above, so the */
@@ -171,7 +170,6 @@
 #define _PAGE_NO_CACHE (1 << xlate_pabit(_PAGE_NO_CACHE_BIT))
 #define _PAGE_ACCESSED (1 << xlate_pabit(_PAGE_ACCESSED_BIT))
 #define _PAGE_PRESENT  (1 << xlate_pabit(_PAGE_PRESENT_BIT))
-#define _PAGE_FLUSH    (1 << xlate_pabit(_PAGE_FLUSH_BIT))
 #define _PAGE_USER     (1 << xlate_pabit(_PAGE_USER_BIT))
 #define _PAGE_FILE     (1 << xlate_pabit(_PAGE_FILE_BIT))
 
@@ -211,7 +209,6 @@
 #define PAGE_KERNEL_RO	__pgprot(_PAGE_KERNEL & ~_PAGE_WRITE)
 #define PAGE_KERNEL_UNC	__pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)
 #define PAGE_GATEWAY    __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_GATEWAY| _PAGE_READ)
-#define PAGE_FLUSH      __pgprot(_PAGE_FLUSH)
 
 
 /*
@@ -259,7 +256,7 @@ extern unsigned long *empty_zero_page;
 
 #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
 
-#define pte_none(x)     ((pte_val(x) == 0) || (pte_val(x) & _PAGE_FLUSH))
+#define pte_none(x)     (pte_val(x) == 0)
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
 #define pte_clear(mm,addr,xp)	do { pte_val(*(xp)) = 0; } while (0)
 
@@ -442,13 +439,10 @@ struct mm_struct;
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
 	pte_t old_pte;
-	pte_t pte;
 
 	spin_lock(&pa_dbit_lock);
-	pte = old_pte = *ptep;
-	pte_val(pte) &= ~_PAGE_PRESENT;
-	pte_val(pte) |= _PAGE_FLUSH;
-	set_pte_at(mm,addr,ptep,pte);
+	old_pte = *ptep;
+	pte_clear(mm,addr,ptep);
 	spin_unlock(&pa_dbit_lock);
 
 	return old_pte;
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 564606d..5ed2344 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1206,23 +1206,7 @@ nadtlb_miss_20w:
 	nop
 
 nadtlb_check_alias_20w:
-	do_alias	spc,t0,t1,va,pte,prot,nadtlb_check_flush_20w
-
-	idtlbt          pte,prot
-
-	rfir
-	nop
-
-nadtlb_check_flush_20w:
-	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
-
-	/* Insert a "flush only" translation */
-
-	depdi,z         7,7,3,prot
-	depdi           1,10,1,prot
-
-	/* Drop prot bits from pte and convert to page addr for idtlbt */
-	convert_for_tlb_insert20 pte
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate
 
 	idtlbt          pte,prot
 
@@ -1286,7 +1270,7 @@ nadtlb_miss_11:
 	nop
 
 nadtlb_check_alias_11:
-	do_alias	spc,t0,t1,va,pte,prot,nadtlb_check_flush_11
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate
 
 	idtlba          pte,(va)
 	idtlbp          prot,(va)
@@ -1294,30 +1278,6 @@ nadtlb_check_alias_11:
 	rfir
 	nop
 
-nadtlb_check_flush_11:
-	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
-
-	/* Insert a "flush only" translation */
-
-	zdepi           7,7,3,prot
-	depi            1,10,1,prot
-
-	/* Get rid of prot bits and convert to page addr for idtlba */
-
-	depi		0,31,ASM_PFN_PTE_SHIFT,pte
-	SHRREG		pte,(ASM_PFN_PTE_SHIFT-(31-26)),pte
-
-	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
-	mtsp		spc,%sr1
-
-	idtlba		pte,(%sr1,va)
-	idtlbp		prot,(%sr1,va)
-
-	mtsp		t0, %sr1	/* Restore sr1 */
-
-	rfir
-	nop
-
 dtlb_miss_20:
 	space_adjust	spc,va,t0
 	get_pgd		spc,ptp
@@ -1363,28 +1323,13 @@ nadtlb_miss_20:
 	nop
 
 nadtlb_check_alias_20:
-	do_alias	spc,t0,t1,va,pte,prot,nadtlb_check_flush_20
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate
 	
 	idtlbt          pte,prot
 
 	rfir
 	nop
 
-nadtlb_check_flush_20:
-	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
-
-	/* Insert a "flush only" translation */
-
-	depdi,z         7,7,3,prot
-	depdi           1,10,1,prot
-
-	/* Drop prot bits from pte and convert to page addr for idtlbt */
-	convert_for_tlb_insert20 pte
-
-	idtlbt          pte,prot

From - Thu Nov 08 21:06:36 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: NFS broken in latest 2.6.37-rcX
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Hi all,


It seems that NFS got broken recently.
I've bisected this to babddc72a9468884ce1a23db3c3d54b0afa299f0.

Both NFS version 2 and 3 are affected. I haven't tested NFS 4.

I've been able to reproduce with both 32bit and 64bit kernels using
gcc-4.5.1 with the fix for PR46915 included.

To reproduce, simply mount an NFS share and try to list the files with
ls.

When listing the directory, the code seem to be looping in the commit I
mentioned. The network traffic goes high and you always see the same
packets flowing.

In current HEAD, the behavior is slightly different. The process uses
100% and either you get a kernel panic or if you are lucky, you get
something like "memory exhausted".


I'm not sure how to troubleshoot this further.

Any idea ?


  Guy
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From - Thu Nov 08 21:06:36 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: NFS broken in latest 2.6.37-rcX
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On Wed, Dec 22, 2010 at 4:34 PM, Guy Martin <gmsoft@tuxicoman.be> wrote:
> It seems that NFS got broken recently.
> I've bisected this to babddc72a9468884ce1a23db3c3d54b0afa299f0.
>
> Both NFS version 2 and 3 are affected. I haven't tested NFS 4.
>
> I've been able to reproduce with both 32bit and 64bit kernels using
> gcc-4.5.1 with the fix for PR46915 included.
>
> To reproduce, simply mount an NFS share and try to list the files with
> ls.
>
> When listing the directory, the code seem to be looping in the commit I
> mentioned. The network traffic goes high and you always see the same
> packets flowing.
>
> In current HEAD, the behavior is slightly different. The process uses
> 100% and either you get a kernel panic or if you are lucky, you get
> something like "memory exhausted".
>
>
> I'm not sure how to troubleshoot this further.
>
> Any idea ?

You need to understand the failure mode.

I would do two things:

(a) Revert the patch on HEAD and see if it works. This is usually
convincing proof that something is broken and the patch interacts
badly with our arch.

(c) Put printfs in the code to see where it's looping and under what
conditions.

Once you have a better grasp of the failure mode you can contact the
author of the patch and tell them about the breakage, CC linux-parisc,
and ask for help.

That would be me plan of attack.

Cheers,
Carlos.
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On Wed, Dec 22, 2010 at 11:22 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> The kernel has an 8M tmpailas space (originally designed for copying
> and clearing pages but now only used for clearing). =A0The idea is
> to place zeros into the cache above a physical page rather than into
> the physical page and flush the cache, because often the zeros end up
> being replaced quickly anyway.
>
> We can also use the tmpalias space for flushing a page. =A0The differ=
ence
> here is that we have to do tmpalias processing in the non access data=
 and
> instruction traps. =A0The principle is the same: as long as we know t=
he physical
> address and have a virtual address congruent to the real one, the flu=
sh will
> be effective.
>
> In order to use the tmpalias space, the icache miss path has to be en=
hanced to
> check for the alias region to make the fic instruction effective.

James,

Given that you are currently maintaining the parisc tree, do you have
a public branch that we can pull from to test things?

I've normally been using:
git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git

I would like to test this patch, and the next one you posted, and I
was wondering if you have them on a public branch.

Cheers,
Carlos.
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: 2.6.36 regression : swap support broken
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On Sun, 12 Dec 2010, Guy Martin wrote:

> Recently, swap got broken. When it has to be used, the kernel issue the
> following line numerous times :
> swap_free: Bad swap offset entry 00100009

The incorrect handling of conditional branches followed by an (empty) asm
is now fixed in the gcc tree on all active branches (4.3 through to head).

The 4.2 branch is closed.  So, I wouldn't recommend using it or any earlier
branch of gcc for kernel builds.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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On Wed, 22 Dec 2010, James Bottomley wrote:

> The kernel has an 8M tmpailas space (originally designed for copying
> and clearing pages but now only used for clearing).  The idea is
> to place zeros into the cache above a physical page rather than into
> the physical page and flush the cache, because often the zeros end up
> being replaced quickly anyway.
> 
> We can also use the tmpalias space for flushing a page.  The difference
> here is that we have to do tmpalias processing in the non access data and
> instruction traps.  The principle is the same: as long as we know the physical
> address and have a virtual address congruent to the real one, the flush will
> be effective.
> 
> In order to use the tmpalias space, the icache miss path has to be enhanced to
> check for the alias region to make the fic instruction effective.

Very cool. "dependent" is misspelled in a couple places.  Will test.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Resurrecting my C3000.
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Team,

I wanted to resurrect my C3000 for some 32-bit kernel testing.

I booted it up, but it didn't work, the LCD displayed:
~~~
INI 8890: IO BD
Early Super init
~~~

I don't see anything on the connected serial port #1 (9600 8N1).

I took all the PCI cards out (LSI scsi, 3 VIS-EG PCI), cleaned it,
added some thermal paste to the cpu, and reseated the memory.

Same issue, but sometimes I get  "OFF 00FF:" on the LCD, which isn't a
valid Code for that Ostat.

The workstation reference manual for the C3000 has this to say:
Ostat: INI
Code: 8890
FRU: IO BD
Message: early Super init
Description: Initializing Super-I/O for early RS-232 output.

Technically one must re-seat or replace the failing FRU, but I don't
know what FRU "IO BD" is? The motherboard? :-(

Any ideas?

Cheers,
Carlos.
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In-Reply-To: <AANLkTinFSs6z35AcsAWZ8AuvvPgSDwj8G6Xt4uhOY1XV@mail.gmail.com> from "Carlos O'Donell" at Dec 23, 2010 12:26:56 pm
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> The workstation reference manual for the C3000 has this to say:
> Ostat: INI
> Code: 8890
> FRU: IO BD
> Message: early Super init
> Description: Initializing Super-I/O for early RS-232 output.
> 
> Technically one must re-seat or replace the failing FRU, but I don't
> know what FRU "IO BD" is? The motherboard? :-(
> 
> Any ideas?

Possibly this manual will help:
http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/lpv38336/lpv38336.pdf

I don't think this is motherboard.  Look for board with RS-232 connector.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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On Thu, Dec 23, 2010 at 1:23 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> The workstation reference manual for the C3000 has this to say:
>> Ostat: INI
>> Code: 8890
>> FRU: IO BD
>> Message: early Super init
>> Description: Initializing Super-I/O for early RS-232 output.
>>
>> Technically one must re-seat or replace the failing FRU, but I don't
>> know what FRU "IO BD" is? The motherboard? :-(
>>
>> Any ideas?
>
> Possibly this manual will help:
> http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/lpv383=
36/lpv38336.pdf
>
> I don't think this is motherboard. =A0Look for board with RS-232 conn=
ector.

The C3K is a single board system, the RS-232 connectors on the back
are mounted and routed directly to the motherboard (like a common PC).

If I remove the disks, CDROM, floppy, and memory from the system, it
still powers up and displays the same error.

I was surprised it booted without any ram in the slots, but it's a
robust design :-)

Cheers,
Carlos.
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On Thu, Dec 23, 2010 at 7:31 PM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> On Thu, Dec 23, 2010 at 1:23 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
>>> The workstation reference manual for the C3000 has this to say:
>>> Ostat: INI
>>> Code: 8890
>>> FRU: IO BD
>>> Message: early Super init
>>> Description: Initializing Super-I/O for early RS-232 output.
>>>
>>> Technically one must re-seat or replace the failing FRU, but I don'=
t
>>> know what FRU "IO BD" is? The motherboard? :-(
>>>
>>> Any ideas?
>>
>> Possibly this manual will help:
>> http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/lpv38=
336/lpv38336.pdf
>>
>> I don't think this is motherboard. =C2=A0Look for board with RS-232 =
connector.
>
> The C3K is a single board system, the RS-232 connectors on the back
> are mounted and routed directly to the motherboard (like a common PC)=
=2E

Dry solder?

T-Bone
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Subject: Re: Resurrecting my C3000.
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In-Reply-To: <AANLkTimOpLijMDTttD-MD9uKfGFz6KrnCmae71-S=Deq@mail.gmail.com> from "Carlos O'Donell" at Dec 23, 2010 01:31:46 pm
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> The C3K is a single board system, the RS-232 connectors on the back
> are mounted and routed directly to the motherboard (like a common PC).
> 
> If I remove the disks, CDROM, floppy, and memory from the system, it
> still powers up and displays the same error.
> 
> I was surprised it booted without any ram in the slots, but it's a
> robust design :-)

Can you switch to graphics console?  Otherwise, it looks like you need
a new system board...

It looks like a problem with the Super I/O controller which handles
USB, RS-232, Parallel, Floppy and CDRom.  It might be the RS-232
interface chip (something like MAX3232).  It's not uncommon for
these devices to get blown by ESD.  Also, the charge pumps sometimes
fail, or don't start reliably.

Possibly, a PC serial card would work if the machine will boot.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Dec 23, 2010 at 7:43 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> The C3K is a single board system, the RS-232 connectors on the back
>> are mounted and routed directly to the motherboard (like a common PC=
).
>>
>> If I remove the disks, CDROM, floppy, and memory from the system, it
>> still powers up and displays the same error.
>>
>> I was surprised it booted without any ram in the slots, but it's a
>> robust design :-)
>
> Can you switch to graphics console? =C2=A0Otherwise, it looks like yo=
u need
> a new system board...

graphics console without SuckyIO means no USB, ergo, no input... It
sure can be fixed, but is it worth it? :)

HTH
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On Thu, Dec 23, 2010 at 01:31:46PM -0500, Carlos O'Donell wrote:
> If I remove the disks, CDROM, floppy, and memory from the system, it
> still powers up and displays the same error.
> 

I have a C3700 you're welcome to if you want it. (Or a J6700?)

--Kyle
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On 12/22/2010 05:22 PM, James Bottomley wrote:
> The kernel has an 8M tmpailas space (originally designed for copying
> and clearing pages but now only used for clearing).  The idea is
> to place zeros into the cache above a physical page rather than into
> the physical page and flush the cache, because often the zeros end up
> being replaced quickly anyway.
> 
> We can also use the tmpalias space for flushing a page.  The difference
> here is that we have to do tmpalias processing in the non access data and
> instruction traps.  The principle is the same: as long as we know the physical
> address and have a virtual address congruent to the real one, the flush will
> be effective.
> 
> In order to use the tmpalias space, the icache miss path has to be enhanced to
> check for the alias region to make the fic instruction effective.
> 
> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>


Hi James,

Cool, I assume this patch intends to fix the "Threads and fork on VIPT-WB machines" bug as described here: http://wiki.parisc-linux.org/TestCases ?

I did some initial testing and it seems to really fix it...
I'll continue testing during the next few days (with 2.6.37-rc7-32bit).

Helge


BTW: compilation gives one small warning:
arch/parisc/kernel/cache.c: In function 'flush_dcache_page':
arch/parisc/kernel/cache.c:310: warning: pointer type mismatch in conditional expression
arch/parisc/kernel/cache.c:310: warning: format '%s' expects type 'char *', but argument 4 has type 'void * const'
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From - Thu Nov 08 21:06:37 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: PA-RISC 2.0 add/sub carry/borrow bug
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Yesterday, after updating binutils to head, I hit an assembler error
assembling code from checksum.h:

 "      add,dc          %%r20, %0, %0\n"

It turns out that that gas was previously mis-assembling

	add		%r1,%r2,%r3

when generating PA 2.0 code.  It seems the overflow (d bit) was
incorrectly being set, indicating that a 64-bit signed overflow
was needed.  In fact, 32-bit signed overflow is the default unless
there is a "dc" completor or a 64-bit condition.

A patch was applied to fix the above.  However, it broke the handling
of "add,dc".  It also didn't fix sub.

It seems that the gas bug was hiding some code generation issues in
gcc.  The code in the linux kernel where I noticed this is also broken.
The linux change is untested.

Until gcc is fixed, binutils head can't be used ;(

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/include/asm/checksum.h b/arch/parisc/include/asm/checksum.h
index c84b2fc..3efcc33 100644
--- a/arch/parisc/include/asm/checksum.h
+++ b/arch/parisc/include/asm/checksum.h
@@ -140,7 +140,7 @@ static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
 "	ldd,ma		8(%1), %%r19\n"	/* get 1st saddr word */
 "	ldd,ma		8(%2), %%r20\n"	/* get 1st daddr word */
 "	add		%8, %3, %3\n"/* add 16-bit proto + len */
-"	add		%%r19, %0, %0\n"
+"	add,*		%%r19, %0, %0\n"
 "	ldd,ma		8(%1), %%r21\n"	/* 2cd saddr */
 "	ldd,ma		8(%2), %%r22\n"	/* 2cd daddr */
 "	add,dc		%%r20, %0, %0\n"
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Subject: Re: parisc: flush pages through tmpalias space
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Wed, 22 Dec 2010, James Bottomley wrote:

> +		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
> +			__flush_cache_page(mpnt, addr, page_to_phys(page));
> +			if (old_addr)
> +				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
> +			old_addr = addr;
>  		}

I'm seeing the above kernel error on shutdown:

Dec 26 12:30:56 mx3210 kernel: INEQUIVALENT ALIASES 0x13000 and 0x14000 in file killall5
Dec 26 12:30:56 mx3210 kernel: INEQUIVALENT ALIASES 0x40122000 and 0x40121000 in file ld-2.11.2.so
Dec 26 12:30:57 mx3210 kernel: INEQUIVALENT ALIASES 0x402a7000 and 0x402a6000 in file libc-2.11.2.so

This is with 2.6.36.2 and your two patches on a SMP kernel.  I've also seen
these messages with a similar UP build in the gcc guality tests.  These
check debug info with gdb.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, 2010-12-25 at 22:52 +0100, Helge Deller wrote:
> On 12/22/2010 05:22 PM, James Bottomley wrote:
> > The kernel has an 8M tmpailas space (originally designed for copying
> > and clearing pages but now only used for clearing).  The idea is
> > to place zeros into the cache above a physical page rather than into
> > the physical page and flush the cache, because often the zeros end up
> > being replaced quickly anyway.
> > 
> > We can also use the tmpalias space for flushing a page.  The difference
> > here is that we have to do tmpalias processing in the non access data and
> > instruction traps.  The principle is the same: as long as we know the physical
> > address and have a virtual address congruent to the real one, the flush will
> > be effective.
> > 
> > In order to use the tmpalias space, the icache miss path has to be enhanced to
> > check for the alias region to make the fic instruction effective.
> > 
> > Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
> 
> 
> Hi James,
> 
> Cool, I assume this patch intends to fix the "Threads and fork on
> VIPT-WB machines" bug as described here:
> http://wiki.parisc-linux.org/TestCases ?

Well, not really ... it's meant  to provide data to fix that case.  The
theory behind them is that if we flush in the wrong place (say after the
mapping has been torn down), then the flush becomes ineffective.  The
idea of flushing through the tmpalias space is that the flush becomes
effective regardless of placement.  I didn't really think we had any
ineffective flushes, but it's good to demonstrate that.

> I did some initial testing and it seems to really fix it...
> I'll continue testing during the next few days (with 2.6.37-rc7-32bit).

That's an interesting data point ... it certainly doesn't fix the
problem with me on pa8800 SMP.

James


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On Tue, 2010-12-28 at 23:23 -0500, John David Anglin wrote:
> On Wed, 22 Dec 2010, James Bottomley wrote:
> 
> > +		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
> > +			__flush_cache_page(mpnt, addr, page_to_phys(page));
> > +			if (old_addr)
> > +				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
> > +			old_addr = addr;
> >  		}
> 
> I'm seeing the above kernel error on shutdown:
> 
> Dec 26 12:30:56 mx3210 kernel: INEQUIVALENT ALIASES 0x13000 and 0x14000 in file killall5
> Dec 26 12:30:56 mx3210 kernel: INEQUIVALENT ALIASES 0x40122000 and 0x40121000 in file ld-2.11.2.so
> Dec 26 12:30:57 mx3210 kernel: INEQUIVALENT ALIASES 0x402a7000 and 0x402a6000 in file libc-2.11.2.so
> 
> This is with 2.6.36.2 and your two patches on a SMP kernel.  I've also seen
> these messages with a similar UP build in the gcc guality tests.  These
> check debug info with gdb.

Yes, I still don't know why, but fortunately the one above is the same
one I see, which only occurs when the system goes down.  I suspect
something is specifying a fixed offset for the library mappings which
violates our 4MB equivalency rule.

James


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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: parisc: flush pages through tmpalias space
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On Wed, 29 Dec 2010, James Bottomley wrote:

> > Dec 26 12:30:57 mx3210 kernel: INEQUIVALENT ALIASES 0x402a7000 and 0x402a6000 in file libc-2.11.2.so
> > 
> > This is with 2.6.36.2 and your two patches on a SMP kernel.  I've also seen
> > these messages with a similar UP build in the gcc guality tests.  These
> > check debug info with gdb.
> 
> Yes, I still don't know why, but fortunately the one above is the same
> one I see, which only occurs when the system goes down.  I suspect
> something is specifying a fixed offset for the library mappings which
> violates our 4MB equivalency rule.

Attached is an application that triggers similar errors:

Dec 29 23:27:02 mx3210 kernel: INEQUIVALENT ALIASES 0x11000 and 0x12000 in file example.exe

If I was to guess, I think the problem is likely caused by the brk system
calls from popen:

...
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40001000
mprotect(0x40518000, 1413120, PROT_READ|PROT_WRITE) = 0
mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40002000
mprotect(0x40518000, 1413120, PROT_READ|PROT_EXEC) = 0
munmap(0x40185000, 24154)               = 0
brk(0)                                  = 0x13000
brk(0x34000)                            = 0x34000
pipe2([3, 4], O_CLOEXEC)                = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x40000a68) = 3035
close(3)                                = 0
...

It's hard to debug because gdb needs to attach.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--BOKacYhQ+x31HxR3
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="example.c"

/* { dg-do run { xfail *-*-* } } */
/* { dg-options "-g" } */

#define GUALITY_DONT_FORCE_LIVE_AFTER -1

#ifndef STATIC_INLINE
#define STATIC_INLINE /*static*/
#endif

#include "guality.h"

#include <assert.h>

/* Test the debug info for the functions used in the VTA
   presentation at the GCC Summit 2008.  */

typedef struct list {
  struct list *n;
  int v;
} elt, *node;

STATIC_INLINE node
find_val (node c, int v, node e)
{
  while (c < e)
    {
      GUALCHK (c);
      GUALCHK (v);
      GUALCHK (e);
      if (c->v == v)
	return c;
      GUALCHK (c);
      GUALCHK (v);
      GUALCHK (e);
      c++;
    }
  return NULL;
}

STATIC_INLINE node
find_prev (node c, node w)
{
  while (c)
    {
      node o = c;
      c = c->n;
      GUALCHK (c);
      GUALCHK (o);
      GUALCHK (w);
      if (c == w)
	return o;
      GUALCHK (c);
      GUALCHK (o);
      GUALCHK (w);
    }
  return NULL;
}

STATIC_INLINE node
check_arr (node c, node e)
{
  if (c == e)
    return NULL;
  e--;
  while (c < e)
    {
      GUALCHK (c);
      GUALCHK (e);
      if (c->v > (c+1)->v)
	return c;
      GUALCHK (c);
      GUALCHK (e);
      c++;
    }
  return NULL;
}

STATIC_INLINE node
check_list (node c, node t)
{
  while (c != t)
    {
      node n = c->n;
      GUALCHK (c);
      GUALCHK (n);
      GUALCHK (t);
      if (c->v > n->v)
	return c;
      GUALCHK (c);
      GUALCHK (n);
      GUALCHK (t);
      c = n;
    }
  return NULL;
}

struct list testme[] = {
  { &testme[1],  2 },
  { &testme[2],  3 },
  { &testme[3],  5 },
  { &testme[4],  7 },
  { &testme[5], 11 },
  { NULL, 13 },
};

int
main (int argc, char *argv[])
{
  int n = sizeof (testme) / sizeof (*testme);
  node first, last, begin, end, ret;

  GUALCHKXPR (n);

  begin = first = &testme[0];
  last = &testme[n-1];
  end = &testme[n];

  GUALCHKXPR (first);
  GUALCHKXPR (last);
  GUALCHKXPR (begin);
  GUALCHKXPR (end);

  ret = find_val (begin, 13, end);
  GUALCHK (ret);
  assert (ret == last);

  ret = find_prev (first, last);
  GUALCHK (ret);
  assert (ret == &testme[n-2]);

  ret = check_arr (begin, end);
  GUALCHK (ret);
  assert (!ret);

  ret = check_list (first, last);
  GUALCHK (ret);
  assert (!ret);
}

--BOKacYhQ+x31HxR3
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From - Thu Nov 08 21:06:38 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: parisc: flush pages through tmpalias space
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On Thu, 30 Dec 2010, John David Anglin wrote:

> Attached is an application that triggers similar errors:

Sorry, missed the key bit of code.  Hope previous message 
isn't blocked.  If so, I'll resend without exe.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--FCuugMFkClbJLl1L
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="guality.h"

/* Infrastructure to test the quality of debug information.
   Copyright (C) 2008, 2009 Free Software Foundation, Inc.
   Contributed by Alexandre Oliva <aoliva@redhat.com>.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.

GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <unistd.h>

/* This is a first cut at checking that debug information matches
   run-time.  The idea is to annotate programs with GUALCHK* macros
   that guide the tests.

   In the current implementation, all of the macros expand to function
   calls.  On the one hand, this interferes with optimizations; on the
   other hand, it establishes an optimization barrier and a clear
   inspection point, where previous operations (as in the abstract
   machine) should have been completed and have their effects visible,
   and future operations shouldn't have started yet.

   In the current implementation of guality_check(), we fork a child
   process that runs gdb, attaches to the parent process (the one that
   called guality_check), moves up one stack frame (to the caller of
   guality_check) and then examines the given expression.

   If it matches the expected value, we have a PASS.  If it differs,
   we have a FAILure.  If it is missing, we'll have a FAIL or an
   UNRESOLVED depending on whether the variable or expression might be
   unavailable at that point, as indicated by the third argument.

   We envision a future alternate implementation with two compilation
   and execution cycles, say one that runs the program and uses the
   macros to log expressions and expected values, another in which the
   macros expand to nothing and the logs are used to guide a debug
   session that tests the values.  How to identify the inspection
   points in the second case is yet to be determined.  It is
   recommended that GUALCHK* macros be by themselves in source lines,
   so that __FILE__ and __LINE__ will be usable to identify them.
*/

/* This is the type we use to pass values to guality_check.  */

typedef intmax_t gualchk_t;

/* Convert a pointer or integral type to the widest integral type,
   as expected by guality_check.  */

#ifndef __cplusplus
#define GUALCVT(val)						\
  ((gualchk_t)__builtin_choose_expr				\
   (__builtin_types_compatible_p (__typeof (val), gualchk_t),	\
    (val),							\
    __builtin_choose_expr					\
    (__builtin_classify_type (val)				\
     == __builtin_classify_type (&guality_skip),		\
     (uintptr_t)(val),(intptr_t)(val))))
#else
template <typename T>
inline __attribute__((always_inline)) gualchk_t
gualcvt (T *val)
{
  return (uintptr_t) val;
}

template <typename T>
inline __attribute__((always_inline)) gualchk_t
gualcvt (T val)
{
  return (intptr_t) val;
}

template <>
inline __attribute__((always_inline)) gualchk_t
gualcvt<gualchk_t> (gualchk_t val)
{
  return val;
}

#define GUALCVT(val) gualcvt (val)
#endif

/* Attach a debugger to the current process and verify that the string
   EXPR, evaluated by the debugger, yields the gualchk_t number VAL.
   If the debugger cannot compute the expression, say because the
   variable is unavailable, this will count as an error, unless unkok
   is nonzero.  */

#define GUALCHKXPRVAL(expr, val, unkok) \
  guality_check ((expr), (val), (unkok))

/* Check that a debugger knows that EXPR evaluates to the run-time
   value of EXPR.  Unknown values are marked as acceptable,
   considering that EXPR may die right after this call.  This will
   affect the generated code in that EXPR will be evaluated and forced
   to remain live at least until right before the call to
   guality_check, although not necessarily after the call.  */

#define GUALCHKXPR(expr) \
  GUALCHKXPRVAL (#expr, GUALCVT (expr), 1)

/* Same as GUALCHKXPR, but issue an error if the variable is optimized
   away.  */

#define GUALCHKVAL(expr) \
  GUALCHKXPRVAL (#expr, GUALCVT (expr), 0)

/* Check that a debugger knows that EXPR evaluates to the run-time
   value of EXPR.  Unknown values are marked as errors, because the
   value of EXPR is forced to be available right after the call, for a
   range of at least one instruction.  This will affect the generated
   code, in that EXPR *will* be evaluated before and preserved until
   after the call to guality_check.  */

#define GUALCHKFLA(expr) do {					\
    __typeof(expr) volatile __preserve_after;			\
    __typeof(expr) __preserve_before = (expr);			\
    GUALCHKXPRVAL (#expr, GUALCVT (__preserve_before), 0);	\
    __preserve_after = __preserve_before;			\
    asm ("" : : "m" (__preserve_after));			\
  } while (0)

/* GUALCHK is the simplest way to assert that debug information for an
   expression matches its run-time value.  Whether to force the
   expression live after the call, so as to flag incompleteness
   errors, can be disabled by defining GUALITY_DONT_FORCE_LIVE_AFTER.
   Setting it to -1, an error is issued for optimized out variables,
   even though they are not forced live.  */

#if ! GUALITY_DONT_FORCE_LIVE_AFTER
#define GUALCHK(var) GUALCHKFLA(var)
#elif GUALITY_DONT_FORCE_LIVE_AFTER < 0
#define GUALCHK(var) GUALCHKVAL(var)
#else
#define GUALCHK(var) GUALCHKXPR(var)
#endif

/* The name of the GDB program, with arguments to make it quiet.  This
   is GUALITY_GDB_DEFAULT GUALITY_GDB_ARGS by default, but it can be
   overridden by setting the GUALITY_GDB environment variable, whereas
   GUALITY_GDB_DEFAULT can be overridden by setting the
   GUALITY_GDB_NAME environment variable.  */

static const char *guality_gdb_command;
#define GUALITY_GDB_DEFAULT "gdb"
#if defined(__unix)
# define GUALITY_GDB_REDIRECT " > /dev/null 2>&1"
#elif defined (_WIN32) || defined (MSDOS)
# define GUALITY_GDB_REDIRECT " > nul"
#else
# define GUALITY_GDB_REDIRECT ""
#endif
#define GUALITY_GDB_ARGS " -nx -nw --quiet" GUALITY_GDB_REDIRECT

/* Kinds of results communicated as exit status from child process
   that runs gdb to the parent process that's being monitored.  */

enum guality_counter { PASS, INCORRECT, INCOMPLETE };

/* Count of passes and errors.  */

static int guality_count[INCOMPLETE+1];

/* If --guality-skip is given in the command line, all the monitoring,
   forking and debugger-attaching action will be disabled.  This is
   useful to run the monitor program within a debugger.  */

static int guality_skip;

/* This is a file descriptor to which we'll issue gdb commands to
   probe and test.  */
FILE *guality_gdb_input;

/* This holds the line number where we're supposed to set a
   breakpoint.  */
int guality_breakpoint_line;

/* GDB should set this to true once it's connected.  */
int volatile guality_attached;

/* This function is the main guality program.  It may actually be
   defined as main, because we #define main to it afterwards.  Because
   of this wrapping, guality_main may not have an empty argument
   list.  */

extern int guality_main (int argc, char *argv[]);

static void __attribute__((noinline))
guality_check (const char *name, gualchk_t value, int unknown_ok);

/* Set things up, run guality_main, then print a summary and quit.  */

int
main (int argc, char *argv[])
{
  int i;
  char *argv0 = argv[0];

  guality_gdb_command = getenv ("GUALITY_GDB");
  if (!guality_gdb_command)
    {
      guality_gdb_command = getenv ("GUALITY_GDB_NAME");
      if (!guality_gdb_command)
	guality_gdb_command = GUALITY_GDB_DEFAULT GUALITY_GDB_ARGS;
      else
	{
	  int len = strlen (guality_gdb_command) + sizeof (GUALITY_GDB_ARGS);
	  char *buf = (char *) __builtin_alloca (len);
	  strcpy (buf, guality_gdb_command);
	  strcat (buf, GUALITY_GDB_ARGS);
	  guality_gdb_command = buf;
	}
    }

  for (i = 1; i < argc; i++)
    if (strcmp (argv[i], "--guality-skip") == 0)
      guality_skip = 1;
    else
      break;

  if (!guality_skip)
    {
      guality_gdb_input = popen (guality_gdb_command, "w");
      /* This call sets guality_breakpoint_line.  */
      guality_check (NULL, 0, 0);
      if (!guality_gdb_input
	  || fprintf (guality_gdb_input, "\
set height 0\n\
attach %i\n\
set guality_attached = 1\n\
b %i\n\
continue\n\
", (int)getpid (), guality_breakpoint_line) <= 0
	  || fflush (guality_gdb_input))
	{
	  perror ("gdb");
	  abort ();
	}
    }

  argv[--i] = argv0;

  guality_main (argc - i, argv + i);

  i = guality_count[INCORRECT];

  fprintf (stderr, "%s: %i PASS, %i FAIL, %i UNRESOLVED\n",
	   i ? "FAIL" : "PASS",
	   guality_count[PASS], guality_count[INCORRECT],
	   guality_count[INCOMPLETE]);

  return i;
}

#define main guality_main

/* Tell the GDB child process to evaluate NAME in the caller.  If it
   matches VALUE, we have a PASS; if it's unknown and UNKNOWN_OK, we
   have an UNRESOLVED.  Otherwise, it's a FAIL.  */

static void __attribute__((noinline))
guality_check (const char *name, gualchk_t value, int unknown_ok)
{
  int result;

  if (guality_skip)
    return;

  {
    volatile gualchk_t xvalue = -1;
    volatile int unavailable = 0;
    if (name)
      {
	/* The sequence below cannot distinguish an optimized away
	   variable from one mapped to a non-lvalue zero.  */
	if (fprintf (guality_gdb_input, "\
up\n\
set $value1 = 0\n\
set $value1 = (%s)\n\
set $value2 = -1\n\
set $value2 = (%s)\n\
set $value3 = $value1 - 1\n\
set $value4 = $value1 + 1\n\
set $value3 = (%s)++\n\
set $value4 = --(%s)\n\
down\n\
set xvalue = $value1\n\
set unavailable = $value1 != $value2 ? -1 : $value3 != $value4 ? 1 : 0\n\
continue\n\
", name, name, name, name) <= 0
	    || fflush (guality_gdb_input))
	  {
	    perror ("gdb");
	    abort ();
	  }
	else if (!guality_attached)
	  {
	    unsigned int timeout = 0;

	    /* Give GDB some more time to attach.  Wrapping around a
	       32-bit counter takes some seconds, it should be plenty
	       of time for GDB to get a chance to start up and attach,
	       but not long enough that, if GDB is unavailable or
	       broken, we'll take far too long to give up.  */
	    while (--timeout && !guality_attached)
	      ;
	    if (!timeout && !guality_attached)
	      {
		fprintf (stderr, "gdb: took too long to attach\n");
		abort ();
	      }
	  }
      }
    else
      {
	guality_breakpoint_line = __LINE__ + 5;
	return;
      }
    /* Do NOT add lines between the __LINE__ above and the line below,
       without also adjusting the added constant to match.  */
    if (!unavailable || (unavailable > 0 && xvalue))
      {
	if (xvalue == value)
	  result = PASS;
	else
	  result = INCORRECT;
      }
    else
      result = INCOMPLETE;
    asm ("" : : "X" (name), "X" (value), "X" (unknown_ok), "m" (xvalue));
    switch (result)
      {
      case PASS:
	fprintf (stderr, "PASS: %s is %lli\n", name, value);
	break;
      case INCORRECT:
	fprintf (stderr, "FAIL: %s is %lli, not %lli\n", name, xvalue, value);
	break;
      case INCOMPLETE:
	fprintf (stderr, "%s: %s is %s, expected %lli\n",
		 unknown_ok ? "UNRESOLVED" : "FAIL", name,
		 unavailable < 0 ? "not computable" : "optimized away", value);
	result = unknown_ok ? INCOMPLETE : INCORRECT;
	break;
      default:
	abort ();
      }
  }

  switch (result)
    {
    case PASS:
    case INCORRECT:
    case INCOMPLETE:
      ++guality_count[result];
      break;

    default:
      abort ();
    }
}

--FCuugMFkClbJLl1L--
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From - Thu Nov 08 21:06:38 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: parisc: flush pages through tmpalias space
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On Thu, 30 Dec 2010, John David Anglin wrote:

> On Thu, 30 Dec 2010, John David Anglin wrote:
> 
> > Attached is an application that triggers similar errors:

Here is a simpler testcase:

int main ()
{
  asm ("stw %r0,0(%r0)"); /* Generate null pointer exception */
  return 0;
}

With the above, I get the following INEQUIVALENT ALIASES messages:

Jan  1 10:23:19 gsyprf11 kernel: [135942.140000] INEQUIVALENT ALIASES 0x406b1000 and 0x406b0000 in file libc-2.11.2.so
Jan  1 10:23:19 gsyprf11 kernel: [135942.224000] INEQUIVALENT ALIASES 0x406b1000 and 0x406b0000 in file libc-2.11.2.so

Running with strace, I see the following mmap call:

mmap(0x406b1000, 28672, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x158000) = 0x406b1000

This is from glibc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:38 2018
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On Sat, 01 Jan 2011, John David Anglin wrote:

> mmap(0x406b1000, 28672, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x158000) = 0x406b1000
> 
> This is from glibc.

In arch_get_unmapped_area(), it says:

	/* Might want to check for cache aliasing issues for MAP_FIXED case
	 * like ARM or MIPS ??? --BenH.
	 */
	if (flags & MAP_FIXED)
		return addr;

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: parisc: flush pages through tmpalias space
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On Sat, 01 Jan 2011, John David Anglin wrote:

> On Thu, 30 Dec 2010, John David Anglin wrote:
> 
> > On Thu, 30 Dec 2010, John David Anglin wrote:
> > 
> > > Attached is an application that triggers similar errors:
> 
> Here is a simpler testcase:
> 
> int main ()
> {
>   asm ("stw %r0,0(%r0)"); /* Generate null pointer exception */
>   return 0;
> }
> 
> With the above, I get the following INEQUIVALENT ALIASES messages:
> 
> Jan  1 10:23:19 gsyprf11 kernel: [135942.140000] INEQUIVALENT ALIASES 0x406b1000 and 0x406b0000 in file libc-2.11.2.so
> Jan  1 10:23:19 gsyprf11 kernel: [135942.224000] INEQUIVALENT ALIASES 0x406b1000 and 0x406b0000 in file libc-2.11.2.so

This is what I see in the tasks maps file in /proc:

00010000-00011000 r-xp 00000000 08:30 6613687                            /home2/dave/inequiv/xxx1
00011000-00012000 rwxp 00000000 08:30 6613687                            /home2/dave/inequiv/xxx1
40000000-40005000 rw-p 00000000 00:00 0 
4002b000-4004b000 r-xp 00000000 08:03 2502157                            /lib/ld-2.11.2.so
4004b000-4004f000 rwxp 0001f000 08:03 2502157                            /lib/ld-2.11.2.so
4004f000-40050000 rwxp 00000000 00:00 0 
40138000-40291000 r-xp 00000000 08:03 2502172                            /lib/libc-2.11.2.so
40291000-40298000 rwxp 00158000 08:03 2502172                            /lib/libc-2.11.2.so
40298000-4029a000 rwxp 00000000 00:00 0 
fe09b000-fe0be000 rwxp 00000000 00:00 0                                  [stack]

As can be seen, there are duplicate maps with different protections for xxx1,
etc.  So, it's clear why we have the inequivalent aliases.  The map can
be accessed by the application (probably just for lines in the cache).
I have seen some discussions that even a read may lead to cache corruption.

These inequivalent maps are coming from glibc:

dave@gsyprf11:~/inequiv$ strace /lib/ld-2.11.2.so ./xxx1
execve("/lib/ld-2.11.2.so", ["/lib/ld-2.11.2.so", "./xxx1"], [/* 17 vars */]) = 0
brk(0)                                  = 0x4119a000
open("./xxx1", O_RDONLY)                = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\2\0\17\0\0\0\1\0\1\3T\0\0\0004"..., 512) = 512
fstat64(3, {st_mode=0, st_size=4380866642020, ...}) = 0
getcwd("/home2/dave/inequiv", 128)      = 20
mmap(0x10000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0) = 0x10000
mmap(0x11000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0) = 0x11000
...

Carlos what do you think?  arch_get_unmapped_area() accepts MAP_FIXED
requests even if it would violate cache aliasing constraints.  I don't
understand the purpose of the region at 0x11000.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Wed, 2010-12-22 at 16:53 -0500, Carlos O'Donell wrote:
> On Wed, Dec 22, 2010 at 4:34 PM, Guy Martin <gmsoft@tuxicoman.be> wrote:
> > It seems that NFS got broken recently.
> > I've bisected this to babddc72a9468884ce1a23db3c3d54b0afa299f0.
> >
> > Both NFS version 2 and 3 are affected. I haven't tested NFS 4.
> >
> > I've been able to reproduce with both 32bit and 64bit kernels using
> > gcc-4.5.1 with the fix for PR46915 included.
> >
> > To reproduce, simply mount an NFS share and try to list the files with
> > ls.
> >
> > When listing the directory, the code seem to be looping in the commit I
> > mentioned. The network traffic goes high and you always see the same
> > packets flowing.
> >
> > In current HEAD, the behavior is slightly different. The process uses
> > 100% and either you get a kernel panic or if you are lucky, you get
> > something like "memory exhausted".
> >
> >
> > I'm not sure how to troubleshoot this further.
> >
> > Any idea ?
> 
> You need to understand the failure mode.
> 
> I would do two things:
> 
> (a) Revert the patch on HEAD and see if it works. This is usually
> convincing proof that something is broken and the patch interacts
> badly with our arch.
> 
> (c) Put printfs in the code to see where it's looping and under what
> conditions.
> 
> Once you have a better grasp of the failure mode you can contact the
> author of the patch and tell them about the breakage, CC linux-parisc,
> and ask for help.
> 
> That would be me plan of attack.

Arm ran into this as well

http://marc.info/?t=129372938100002

It looks to be an inequivalent aliasing problem caused by  writes via
the kernel direct mapping, and reads via vmalloc space.

James


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On Tue, Jan 4, 2011 at 10:49 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> On Sat, 01 Jan 2011, John David Anglin wrote:
>
>> On Thu, 30 Dec 2010, John David Anglin wrote:
>>
>> > On Thu, 30 Dec 2010, John David Anglin wrote:
>> >
>> > > Attached is an application that triggers similar errors:
>>
>> Here is a simpler testcase:
>>
>> int main ()
>> {
>> =A0 asm ("stw %r0,0(%r0)"); /* Generate null pointer exception */
>> =A0 return 0;
>> }
>>
>> With the above, I get the following INEQUIVALENT ALIASES messages:
>>
>> Jan =A01 10:23:19 gsyprf11 kernel: [135942.140000] INEQUIVALENT ALIA=
SES 0x406b1000 and 0x406b0000 in file libc-2.11.2.so
>> Jan =A01 10:23:19 gsyprf11 kernel: [135942.224000] INEQUIVALENT ALIA=
SES 0x406b1000 and 0x406b0000 in file libc-2.11.2.so
>
> This is what I see in the tasks maps file in /proc:
>
> 00010000-00011000 r-xp 00000000 08:30 6613687 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/home2/dave/inequiv/xxx1
> 00011000-00012000 rwxp 00000000 08:30 6613687 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/home2/dave/inequiv/xxx1
> 40000000-40005000 rw-p 00000000 00:00 0
> 4002b000-4004b000 r-xp 00000000 08:03 2502157 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/lib/ld-2.11.2.so
> 4004b000-4004f000 rwxp 0001f000 08:03 2502157 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/lib/ld-2.11.2.so
> 4004f000-40050000 rwxp 00000000 00:00 0
> 40138000-40291000 r-xp 00000000 08:03 2502172 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/lib/libc-2.11.2.so
> 40291000-40298000 rwxp 00158000 08:03 2502172 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/lib/libc-2.11.2.so
> 40298000-4029a000 rwxp 00000000 00:00 0
> fe09b000-fe0be000 rwxp 00000000 00:00 0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0[stack]
>
> As can be seen, there are duplicate maps with different protections f=
or xxx1,
> etc. =A0So, it's clear why we have the inequivalent aliases. =A0The m=
ap can
> be accessed by the application (probably just for lines in the cache)=
=2E
> I have seen some discussions that even a read may lead to cache corru=
ption.
>
> These inequivalent maps are coming from glibc:
>
> dave@gsyprf11:~/inequiv$ strace /lib/ld-2.11.2.so ./xxx1
> execve("/lib/ld-2.11.2.so", ["/lib/ld-2.11.2.so", "./xxx1"], [/* 17 v=
ars */]) =3D 0
> brk(0) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0=3D 0x4119a000
> open("./xxx1", O_RDONLY) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=3D 3
> read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\2\0\17\0\0\0\1\0\1\3T\0\0\=
0004"..., 512) =3D 512
> fstat64(3, {st_mode=3D0, st_size=3D4380866642020, ...}) =3D 0
> getcwd("/home2/dave/inequiv", 128) =A0 =A0 =A0=3D 20
> mmap(0x10000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DE=
NYWRITE, 3, 0) =3D 0x10000
> mmap(0x11000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_F=
IXED|MAP_DENYWRITE, 3, 0) =3D 0x11000
> ...
>
> Carlos what do you think? =A0arch_get_unmapped_area() accepts MAP_FIX=
ED
> requests even if it would violate cache aliasing constraints. =A0I do=
n't
> understand the purpose of the region at 0x11000.

I'm currently on the South Rim of the Grand Canyon with limited access
to my systems. I'll be back in touch near the end of January and look
into this.

What does the application look like e.g. readelf -a?

The 0x11000 region looks like .data?

Cheers,
Carlos.
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From - Thu Nov 08 21:06:38 2018
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Subject: Re: NFS broken in latest 2.6.37-rcX
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James,

Thanks for pointing me to the thread.

I reached similar conclusion as well. After adding lots of printk, I
could see that the page where the skb buff is copied is not or
partially updated when being read by xdr_page_filler.

Cheers,
  Guy

On Wed, 05 Jan 2011 11:36:01 -0600
James Bottomley <James.Bottomley@HansenPartnership.com> wrote:

> On Wed, 2010-12-22 at 16:53 -0500, Carlos O'Donell wrote:
> > On Wed, Dec 22, 2010 at 4:34 PM, Guy Martin <gmsoft@tuxicoman.be>
> > wrote:
> > > It seems that NFS got broken recently.
> > > I've bisected this to babddc72a9468884ce1a23db3c3d54b0afa299f0.
> > >
> > > Both NFS version 2 and 3 are affected. I haven't tested NFS 4.
> > >
> > > I've been able to reproduce with both 32bit and 64bit kernels
> > > using gcc-4.5.1 with the fix for PR46915 included.
> > >
> > > To reproduce, simply mount an NFS share and try to list the files
> > > with ls.
> > >
> > > When listing the directory, the code seem to be looping in the
> > > commit I mentioned. The network traffic goes high and you always
> > > see the same packets flowing.
> > >
> > > In current HEAD, the behavior is slightly different. The process
> > > uses 100% and either you get a kernel panic or if you are lucky,
> > > you get something like "memory exhausted".
> > >
> > >
> > > I'm not sure how to troubleshoot this further.
> > >
> > > Any idea ?
> > 
> > You need to understand the failure mode.
> > 
> > I would do two things:
> > 
> > (a) Revert the patch on HEAD and see if it works. This is usually
> > convincing proof that something is broken and the patch interacts
> > badly with our arch.
> > 
> > (c) Put printfs in the code to see where it's looping and under what
> > conditions.
> > 
> > Once you have a better grasp of the failure mode you can contact the
> > author of the patch and tell them about the breakage, CC
> > linux-parisc, and ask for help.
> > 
> > That would be me plan of attack.
> 
> Arm ran into this as well
> 
> http://marc.info/?t=129372938100002
> 
> It looks to be an inequivalent aliasing problem caused by  writes via
> the kernel direct mapping, and reads via vmalloc space.
> 
> James
> 
> 

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On Wed, 2011-01-05 at 19:31 +0100, Guy Martin wrote:
> James,
> 
> Thanks for pointing me to the thread.
> 
> I reached similar conclusion as well. After adding lots of printk, I
> could see that the page where the skb buff is copied is not or
> partially updated when being read by xdr_page_filler.

So does this fix it?

James

---

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 996dd89..37d7347 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1783,6 +1783,7 @@ static int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *sym
 	memcpy(kaddr, symname, pathlen);
 	if (pathlen < PAGE_SIZE)
 		memset(kaddr + pathlen, 0, PAGE_SIZE - pathlen);
+	flush_kernel_dcache_page(page);
 	kunmap_atomic(kaddr, KM_USER0);
 
 	error = NFS_PROTO(dir)->symlink(dir, dentry, page, pathlen, &attr);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 4435e5e..9a6bfea 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -205,6 +205,7 @@ static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dent
 
 	readdir->pgbase = (char *)p - (char *)start;
 	readdir->count -= readdir->pgbase;
+	flush_kernel_dcache_page(*readdir->pages);
 	kunmap_atomic(start, KM_USER0);
 }
 


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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Wed, 05 Jan 2011, Carlos O'Donell wrote:

> >> With the above, I get the following INEQUIVALENT ALIASES messages:
> >>
> >> Jan =A01 10:23:19 gsyprf11 kernel: [135942.140000] INEQUIVALENT AL=
IASES 0x406b1000 and 0x406b0000 in file libc-2.11.2.so
> >> Jan =A01 10:23:19 gsyprf11 kernel: [135942.224000] INEQUIVALENT AL=
IASES 0x406b1000 and 0x406b0000 in file libc-2.11.2.so
> >
> > This is what I see in the tasks maps file in /proc:
> >
> > 00010000-00011000 r-xp 00000000 08:30 6613687 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/home2/dave/inequiv/xxx1
> > 00011000-00012000 rwxp 00000000 08:30 6613687 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/home2/dave/inequiv/xxx1
> > 40000000-40005000 rw-p 00000000 00:00 0
> > 4002b000-4004b000 r-xp 00000000 08:03 2502157 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/lib/ld-2.11.2.so
> > 4004b000-4004f000 rwxp 0001f000 08:03 2502157 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/lib/ld-2.11.2.so
> > 4004f000-40050000 rwxp 00000000 00:00 0
> > 40138000-40291000 r-xp 00000000 08:03 2502172 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/lib/libc-2.11.2.so
> > 40291000-40298000 rwxp 00158000 08:03 2502172 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/lib/libc-2.11.2.so
> > 40298000-4029a000 rwxp 00000000 00:00 0
> > fe09b000-fe0be000 rwxp 00000000 00:00 0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0[stack]
> >
> > As can be seen, there are duplicate maps with different protections=
 for xxx1,
> > etc. =A0So, it's clear why we have the inequivalent aliases. =A0The=
 map can
> > be accessed by the application (probably just for lines in the cach=
e).
> > I have seen some discussions that even a read may lead to cache cor=
ruption.
> >
> > These inequivalent maps are coming from glibc:
> >
> > dave@gsyprf11:~/inequiv$ strace /lib/ld-2.11.2.so ./xxx1
> > execve("/lib/ld-2.11.2.so", ["/lib/ld-2.11.2.so", "./xxx1"], [/* 17=
 vars */]) =3D 0
> > brk(0) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0=3D 0x4119a000
> > open("./xxx1", O_RDONLY) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=3D 3
> > read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\2\0\17\0\0\0\1\0\1\3T\0\=
0\0004"..., 512) =3D 512
> > fstat64(3, {st_mode=3D0, st_size=3D4380866642020, ...}) =3D 0
> > getcwd("/home2/dave/inequiv", 128) =A0 =A0 =A0=3D 20
> > mmap(0x10000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_=
DENYWRITE, 3, 0) =3D 0x10000
> > mmap(0x11000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP=
_FIXED|MAP_DENYWRITE, 3, 0) =3D 0x11000
> > ...
> >
> > Carlos what do you think? =A0arch_get_unmapped_area() accepts MAP_F=
IXED
> > requests even if it would violate cache aliasing constraints. =A0I =
don't
> > understand the purpose of the region at 0x11000.
>=20
> I'm currently on the South Rim of the Grand Canyon with limited acces=
s
> to my systems. I'll be back in touch near the end of January and look
> into this.

Nice!

> What does the application look like e.g. readelf -a?

See below.

> The 0x11000 region looks like .data?

Yes.  However, the 0x11000 region also maps to the same physical
address as the region at 0x10000.  Thus, the inequivalent mapping.
The data starts at 0x11890.  It appears the linker has rounded up
the start of the data by 4KB (one page).

Maybe the fix is to round up the start of the data to the next 4GB
boundary in the linker.  This would make the alias boundaries
equivalent.

Dave
--=20
J. David Anglin                                  dave.anglin@nrc-cnrc.g=
c.ca
National Research Council of Canada              (613) 990-0752 (FAX: 9=
52-6602)

ELF Header:
  Magic:   7f 45 4c 46 01 02 01 03 00 00 00 00 00 00 00 00=20
  Class:                             ELF32
  Data:                              2's complement, big endian
  Version:                           1 (current)
  OS/ABI:                            UNIX - Linux
  ABI Version:                       0
  Type:                              EXEC (Executable file)
  Machine:                           HPPA
  Version:                           0x1
  Entry point address:               0x10354
  Start of program headers:          52 (bytes into file)
  Start of section headers:          2884 (bytes into file)
  Flags:                             0x210, PA-RISC 1.1
  Size of this header:               52 (bytes)
  Size of program headers:           32 (bytes)
  Number of program headers:         7
  Size of section headers:           40 (bytes)
  Number of section headers:         31
  Section header string table index: 28

Section Headers:
  [Nr] Name              Type            Addr     Off    Size   ES Flg =
Lk Inf Al
  [ 0]                   NULL            00000000 000000 000000 00     =
 0   0  0
  [ 1] .interp           PROGBITS        00010114 000114 00000d 00   A =
 0   0  1
  [ 2] .note.ABI-tag     NOTE            00010124 000124 000020 00   A =
 0   0  4
  [ 3] .note.gnu.build-i NOTE            00010144 000144 000000 00   A =
 0   0  4
  [ 4] .hash             HASH            00010144 000144 000034 04   A =
 5   0  4
  [ 5] .dynsym           DYNSYM          00010178 000178 000080 10   A =
 6   1  4
  [ 6] .dynstr           STRTAB          000101f8 0001f8 000080 00   A =
 0   0  1
  [ 7] .gnu.version      VERSYM          00010278 000278 000010 02   A =
 5   0  2
  [ 8] .gnu.version_r    VERNEED         00010288 000288 000020 00   A =
 6   1  4
  [ 9] .rela.dyn         RELA            000102a8 0002a8 00000c 0c   A =
 5   0  4
  [10] .rela.plt         RELA            000102b4 0002b4 000048 0c   A =
 5  23  4
  [11] .init             PROGBITS        000102fc 0002fc 000048 00  AX =
 0   0  4
  [12] .text             PROGBITS        00010344 000344 0003e4 00  AX =
 0   0  4
  [13] .fini             PROGBITS        00010728 000728 000028 00  AX =
 0   0  4
  [14] .rodata           PROGBITS        00010750 000750 000018 00   A =
 0   0  4
  [15] .PARISC.unwind    PROGBITS        00010768 000768 0000e0 04   A =
 0  12  4
  [16] .eh_frame_hdr     PROGBITS        00010848 000848 000014 00   A =
 0   0  4
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From - Thu Nov 08 21:06:38 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
Date: Wed, 05 Jan 2011 13:05:36 -0600
Lines: 64
Approved: news@gmane.org
Message-ID: <1294254337.16957.13.camel@mulgrave.site>
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Cc: Trond Myklebust <Trond.Myklebust@netapp.com>,
	linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
	Marc Kleine-Budde <mkl@pengutronix.de>,
	Uwe =?ISO-8859-1?Q?Kleine-K=F6nig?= 
	<u.kleine-koenig@pengutronix.de>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Marc Kleine-Budde <m.kleine-budde@pengutronix.de>,
	linux-arm-kernel@lists.infradead.org,
	Parisc List <linux-parisc@vger.kernel.org>,
	linux-arch@vger.kernel.org
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Original-X-From: linux-arch-owner@vger.kernel.org Wed Jan 05 20:05:45 2011
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Xref: news.gmane.org gmane.linux.kernel.cross-arch:8657 gmane.linux.nfs:37978 gmane.linux.kernel:1083661 gmane.linux.ports.arm.kernel:101621 gmane.linux.ports.parisc:3324
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/8657>

[sorry for the unthreaded insertion.  We're seeing this on parisc too]

> On Wed, Jan 05, 2011 at 10:14:17AM -0500, Trond Myklebust wrote:
> > OK. So,the new behaviour in 2.6.37 is that we're writing to a series of
> > pages via the usual kmap_atomic()/kunmap_atomic() and kmap()/kunmap()
> > interfaces, but we can end up reading them via a virtual address range
> > that gets set up via vm_map_ram() (that range gets set up before the
> > write occurs).
> 
> kmap of lowmem pages will always reuses the existing kernel direct
> mapping, so there won't be a problem there.
> 
> > Do we perhaps need an invalidate_kernel_vmap_range() before we can read
> > the data on ARM in this kind of scenario?
> 
> Firstly, vm_map_ram() does no cache maintainence of any sort, nor does
> it take care of page colouring - so any architecture where cache aliasing
> can occur will see this problem.  It should not limited to ARM.
> 
> Secondly, no, invalidate_kernel_vmap_range() probably isn't sufficient.
> There's two problems here:
> 
> 	addr = kmap(lowmem_page);
> 	*addr = stuff;
> 	kunmap(lowmem_page);
> 
> Such lowmem pages are accessed through their kernel direct mapping.
> 
> 	ptr = vm_map_ram(lowmem_page);
> 	read = *ptr;
> 
> This creates a new mapping which can alias with the kernel direct mapping.
> Now, as this is a new mapping, there should be no cache lines associated
> with it.  (Looking at vm_unmap_ram(), it calls free_unmap_vmap_area_addr(),
> free_unmap_vmap_area(), which then calls flush_cache_vunmap() on the
> region.  vb_free() also calls flush_cache_vunmap() too.)
> 
> If the write after kmap() hits an already present cache line, the cache
> line will be updated, but it won't be written back to memory.  So, on
> a subsequent vm_map_ram(), with any kind of aliasing cache, there's
> no guarantee that you'll hit that cache line and read the data just
> written there.
> 
> The kernel direct mapping would need to be flushed.
> 
> I'm really getting to the point of hating the poliferation of RAM
> remapping interfaces - it's going to (and is) causing nothing but lots
> of pain on virtual cache architectures, needing more and more cache
> flushing interfaces to be created.
> 
> Is there any other solution to this?

I think the solution for the kernel direct mapping problem is to take
the expected flushes and invalidates into kmap/kunmap[_atomic].  I think
the original reason for not doing this was efficiency:  the user should
know what they did with the data (i.e. if they're only reading it, it
doesn't need to be flushed on unmap).  However, the difficulty of
getting all this right seems to outweigh the efficiency of only using
the necessary flushing.  At least on some architectures, we can look at
the TLB flags to see if the page was dirtied (and only flush if it was).

James



From - Thu Nov 08 21:06:39 2018
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From: Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
Date: Wed, 5 Jan 2011 11:18:14 -0800
Lines: 22
Approved: news@gmane.org
Message-ID: <AANLkTi=VZUxNFd7n-qwf5aiOeK5rkk8qBmo+kOpgg7up@mail.gmail.com>
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Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>,
	Trond Myklebust <Trond.Myklebust@netapp.com>,
	linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
	Marc Kleine-Budde <mkl@pengutronix.de>,
	=?ISO-8859-1?Q?Uwe_Kleine=2DK=F6nig?= 
	<u.kleine-koenig@pengutronix.de>,
	Marc Kleine-Budde <m.kleine-budde@pengutronix.de>,
	linux-arm-kernel@lists.infradead.org,
	Parisc List <linux-parisc@vger.kernel.org>,
	linux-arch@vger.kernel.org
To: James Bottomley <James.Bottomley@hansenpartnership.com>
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On Wed, Jan 5, 2011 at 11:05 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
>
> I think the solution for the kernel direct mapping problem is to take
> the expected flushes and invalidates into kmap/kunmap[_atomic].

No, we really can't do that. Most of the time, the kmap() is the only
way we access the page anyway, so flushing things would just be
stupid. Why waste time and energy on doing something pointless?

In fact, kmap() here is a total non-issue. It's not the kmap() that
introduces any virtual aliases, and never has been. It's the
"vm_map_ram()" that is the problem. Unlike the kmap(), that really
_does_ introduce a virtual alias, and is a problem for any virtual
cache.

So don't blame kmap(). It's innocent and irrelevant - the bug could
happen entirely without it (think a 64-bit address space that doesn't
even _have_ kmap, but has software that mixes vm_map_ram() with
non-mapped accesses).

                           Linus

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Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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On Wed, 2011-01-05 at 11:18 -0800, Linus Torvalds wrote:
> On Wed, Jan 5, 2011 at 11:05 AM, James Bottomley
> <James.Bottomley-JuX6DAaQMKPCXq6kfMZ53/egYHeGw8Jk@public.gmane.org> wrote:
> >
> > I think the solution for the kernel direct mapping problem is to take
> > the expected flushes and invalidates into kmap/kunmap[_atomic].
> 
> No, we really can't do that. Most of the time, the kmap() is the only
> way we access the page anyway, so flushing things would just be
> stupid. Why waste time and energy on doing something pointless?

It's hardly pointless.  The kmap sets up an inequivalent alias in the
cache.  When you write to the kmap region, you dirty the CPU caches for
that alias.  If you tear down the mapping without flushing, the CPU will
write out the cache lines at its leisure.  If you access the line via
the other mapping *before* the CPU does writeout, you see stale data.

When the kernel dirties a kmap region, it always has to flush somehow
before kunmap.  One of the problems here is that that flush isn't in the
NFS code.

> In fact, kmap() here is a total non-issue. It's not the kmap() that
> introduces any virtual aliases, and never has been. It's the
> "vm_map_ram()" that is the problem. Unlike the kmap(), that really
> _does_ introduce a virtual alias, and is a problem for any virtual
> cache.
> 
> So don't blame kmap(). It's innocent and irrelevant - the bug could
> happen entirely without it (think a 64-bit address space that doesn't
> even _have_ kmap, but has software that mixes vm_map_ram() with
> non-mapped accesses).

I didn't say it was kmap's entire problem ... I just said, can't we
simplify some of this by consolidating the flushing into the interfaces.

James


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Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>,
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2011/1/5 James Bottomley <James.Bottomley@hansenpartnership.com>:
>>
>> No, we really can't do that. Most of the time, the kmap() is the onl=
y
>> way we access the page anyway, so flushing things would just be
>> stupid. Why waste time and energy on doing something pointless?
>
> It's hardly pointless. =A0The kmap sets up an inequivalent alias in t=
he
> cache.

NO IT DOES NOT.

Stop arguing, when you are so wrong.

kmap() does not create any aliases. For low-memory, it just returns
the physical address. No alias. And for high memory, there is no
equivalent low memory address to alias _with_.

Now, when you actually mix multiple kmap's and you have a virtually
based cache, then the kmap's obviously need to flush that particular
page when switching between each other. But that has nothing to do
with the actual page being kmap'ed, it's entirely an internal issue
about the particular virtual memory area being re-used. And ARM (and
any other virtually based CPU) already does that in __kunmap_atomic().

But notice the case of the low-mem. And understand that you are WRONG
about the "inequivalent alias" thing.

So I repeat: this has absolutely *NOTHING* to do with kmap(). Stop blat=
hering.

It's _purely_ an issue of vm_map_ram(). Nothing else.

                          Linus

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On Wed, Jan 05, 2011 at 01:36:09PM -0600, James Bottomley wrote:
> On Wed, 2011-01-05 at 11:18 -0800, Linus Torvalds wrote:
> > On Wed, Jan 5, 2011 at 11:05 AM, James Bottomley
> > <James.Bottomley-JuX6DAaQMKPCXq6kfMZ53/egYHeGw8Jk@public.gmane.org> wrote:
> > >
> > > I think the solution for the kernel direct mapping problem is to take
> > > the expected flushes and invalidates into kmap/kunmap[_atomic].
> > 
> > No, we really can't do that. Most of the time, the kmap() is the only
> > way we access the page anyway, so flushing things would just be
> > stupid. Why waste time and energy on doing something pointless?
> 
> It's hardly pointless.  The kmap sets up an inequivalent alias in the
> cache.

No it doesn't.  For pages which are inaccessible, it sets up a mapping
for those pages.  On aliasing cache architectures, when you tear down
such a mapping, you have to flush the cache before you do so (otherwise
you can end up with cache lines existing in the cache for inaccessible
mappings.)

For lowmem pages, kmap() (should always) bypass the 'setup mapping' stage
because all lowmem pages are already accessible.  So kunmap() doesn't
do anything - just like the !HIGHMEM implementation for these macros.

So, for highmem-enabled systems:

	low_addr = kmap_atomic(lowmem_page);
	high_addr = kmap_atomic(highmem_page);

results in low_addr in the kernel direct-mapped region, and high_addr
in the kmap_atomic region.
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Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
Date: Wed, 05 Jan 2011 14:33:57 -0600
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On Wed, 2011-01-05 at 20:00 +0000, Russell King - ARM Linux wrote:
> On Wed, Jan 05, 2011 at 01:36:09PM -0600, James Bottomley wrote:
> > On Wed, 2011-01-05 at 11:18 -0800, Linus Torvalds wrote:
> > > On Wed, Jan 5, 2011 at 11:05 AM, James Bottomley
> > > <James.Bottomley@hansenpartnership.com> wrote:
> > > >
> > > > I think the solution for the kernel direct mapping problem is to take
> > > > the expected flushes and invalidates into kmap/kunmap[_atomic].
> > > 
> > > No, we really can't do that. Most of the time, the kmap() is the only
> > > way we access the page anyway, so flushing things would just be
> > > stupid. Why waste time and energy on doing something pointless?
> > 
> > It's hardly pointless.  The kmap sets up an inequivalent alias in the
> > cache.
> 
> No it doesn't.  For pages which are inaccessible, it sets up a mapping
> for those pages.  On aliasing cache architectures, when you tear down
> such a mapping, you have to flush the cache before you do so (otherwise
> you can end up with cache lines existing in the cache for inaccessible
> mappings.)
> 
> For lowmem pages, kmap() (should always) bypass the 'setup mapping' stage
> because all lowmem pages are already accessible.  So kunmap() doesn't
> do anything - just like the !HIGHMEM implementation for these macros.

well, that depends.  For us on parisc, kmap of a user page in !HIGHMEM
sets up an inequivalent aliase still ... because the cache colour of the
user and kernel virtual addresses are different.  Depending on the
return path to userspace, we still usually have to flush to get the user
to see the changes the kernel has made.

James

> So, for highmem-enabled systems:
> 
> 	low_addr = kmap_atomic(lowmem_page);
> 	high_addr = kmap_atomic(highmem_page);
> 
> results in low_addr in the kernel direct-mapped region, and high_addr
> in the kmap_atomic region.



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Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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On Wed, 2011-01-05 at 11:49 -0800, Linus Torvalds wrote:
> 2011/1/5 James Bottomley <James.Bottomley@hansenpartnership.com>:
> >>
> >> No, we really can't do that. Most of the time, the kmap() is the only
> >> way we access the page anyway, so flushing things would just be
> >> stupid. Why waste time and energy on doing something pointless?
> >
> > It's hardly pointless.  The kmap sets up an inequivalent alias in the
> > cache.
> 
> NO IT DOES NOT.

Well, it does ... but not in this case because the page is freshly
allocated (which I missed before) so it has no use cache colour yet.

James

> Stop arguing, when you are so wrong.
> 
> kmap() does not create any aliases. For low-memory, it just returns
> the physical address. No alias. And for high memory, there is no
> equivalent low memory address to alias _with_.
> 
> Now, when you actually mix multiple kmap's and you have a virtually
> based cache, then the kmap's obviously need to flush that particular
> page when switching between each other. But that has nothing to do
> with the actual page being kmap'ed, it's entirely an internal issue
> about the particular virtual memory area being re-used. And ARM (and
> any other virtually based CPU) already does that in __kunmap_atomic().
> 
> But notice the case of the low-mem. And understand that you are WRONG
> about the "inequivalent alias" thing.
> 
> So I repeat: this has absolutely *NOTHING* to do with kmap(). Stop blathering.
> 
> It's _purely_ an issue of vm_map_ram(). Nothing else.
> 
>                           Linus



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On Wed, Jan 5, 2011 at 12:33 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
>
> well, that depends. =A0For us on parisc, kmap of a user page in !HIGH=
MEM
> sets up an inequivalent aliase still ... because the cache colour of =
the
> user and kernel virtual addresses are different. =A0Depending on the
> return path to userspace, we still usually have to flush to get the u=
ser
> to see the changes the kernel has made.

Umm. Again, that has nothing to do with kmap().

This time it's about the user space mapping.

Repeat after me: even without the kmap(), the kernel access to that
mapping would have caused cache aliases.

See? Once more, the kmap() is entirely innocent. You can have a
non-highmem mapping that you never use kmap for, and that you map into
user space, and you'd see exactly the same aliases. Notice? Look ma,
no kmap().

So clearly kmap() is not the issue. The issue continues to be a
totally separate virtual mapping. Whether it's a user mapping or
vm_map_ram() is obviously immaterial - as far as the CPU is concerned,
there is no difference between the two (apart from the trivial
differences of virtual location and permissions).

(You can also force the problem with vmalloc() an then following the
kernel page tables, but I hope nobody does that any more. I suspect
I'm wrong, though, there's probably code that mixes vmalloc and
physical page accesses in various drivers)

                    Linus

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On Wed, Jan 05, 2011 at 12:48:32PM -0800, Linus Torvalds wrote:
> (You can also force the problem with vmalloc() an then following the
> kernel page tables, but I hope nobody does that any more. I suspect
> I'm wrong, though, there's probably code that mixes vmalloc and
> physical page accesses in various drivers)

Should vmalloc_to_page() (84 users)/vmalloc_to_pfn() (17 users) be
deprecated then? ;)

However, we seem have new ways of doing this - rather than asking
vmalloc() for some memory, and then getting at the pages by following
the page tables, we now have ways to create mappings using arrays of
struct pages and access them via their already known mappings:

- vm_map_ram(struct page **pages, unsigned int count, int node, pgprot_t prot)
- map_kernel_range_noflush(unsigned long addr, unsigned long size, pgprot_t prot, struct page **pages)
- map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages)
- vmap(struct page **pages, unsigned int count, unsigned long flags, pgprot_t prot)

So really it's the same problem, just created by some other easier
to use methods.
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Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On Wed, Jan 5, 2011 at 1:04 PM, Russell King - ARM Linux
<linux@arm.linux.org.uk> wrote:
> On Wed, Jan 05, 2011 at 12:48:32PM -0800, Linus Torvalds wrote:
>> (You can also force the problem with vmalloc() an then following the
>> kernel page tables, but I hope nobody does that any more. I suspect
>> I'm wrong, though, there's probably code that mixes vmalloc and
>> physical page accesses in various drivers)
>
> Should vmalloc_to_page() (84 users)/vmalloc_to_pfn() (17 users) be
> deprecated then? ;)

I do think that the "modern" way of doing it is
"vmap()"/"vm_map_ram()" and friends, and it should be preferred over
using vmalloc() and then looking up the pages.

But in the end, the two approaches really are equivalent, so it's not
like it really matters. So I don't think we need to deprecate things
officially, but obviously we should make people more aware of the
whole virtual alias thing that crops up whenever you use any of these
approaches.

                           Linus

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Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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On Wed, 2011-01-05 at 12:48 -0800, Linus Torvalds wrote:
> On Wed, Jan 5, 2011 at 12:33 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> >
> > well, that depends.  For us on parisc, kmap of a user page in !HIGHMEM
> > sets up an inequivalent aliase still ... because the cache colour of the
> > user and kernel virtual addresses are different.  Depending on the
> > return path to userspace, we still usually have to flush to get the user
> > to see the changes the kernel has made.
> 
> Umm. Again, that has nothing to do with kmap().
> 
> This time it's about the user space mapping.
> 
> Repeat after me: even without the kmap(), the kernel access to that
> mapping would have caused cache aliases.
> 
> See? Once more, the kmap() is entirely innocent. You can have a
> non-highmem mapping that you never use kmap for, and that you map into
> user space, and you'd see exactly the same aliases. Notice? Look ma,
> no kmap().

Yes, I understand that (we have no highmem on parisc, so kmap is a nop).
The problem (at least as I see it) is that once something within the
kernel (well, OK, mostly within drivers) touches a user page via its
kernel mapping, the flush often gets forgotten (mainly because it always
works on x86). What I was thinking about is that every time the kernel
touches a user space page, it has to be within a kmap/kunmap pair
(because the page might be highmem) ... so it's possible to make
kmap/kunmap do the flushing for this case so the driver writer can't
ever forget it.

I think the problem case is only really touching scatter/gather elements
outside of the DMA API (i.e. the driver pio case), so this may be
overkill.  Russell also pointed out that a lot of the PIO iterators do
excessive kmap_atomic/kunmap_atomic on the same page, so adding a flush
could damage performance to the point where the flash root devices on
arm might not work.  Plus the pio iterators already contain the
appropriate flush, so perhaps just using them in every case fixes the
problem.

> So clearly kmap() is not the issue. The issue continues to be a
> totally separate virtual mapping. Whether it's a user mapping or
> vm_map_ram() is obviously immaterial - as far as the CPU is concerned,
> there is no difference between the two (apart from the trivial
> differences of virtual location and permissions).
> 
> (You can also force the problem with vmalloc() an then following the
> kernel page tables, but I hope nobody does that any more. I suspect
> I'm wrong, though, there's probably code that mixes vmalloc and
> physical page accesses in various drivers)

Yes, unfortunately, we have seen this quite a bit; mainly to get large
buffers.  Its not just confined to drivers:  xfs used to fail on both
arm and parisc because it used a vmalloc region for its log buffer which
it then had to do I/O on.

James


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On Wed, 2011-01-05 at 13:08 -0800, Linus Torvalds wrote: 
> On Wed, Jan 5, 2011 at 1:04 PM, Russell King - ARM Linux
> <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org> wrote:
> > On Wed, Jan 05, 2011 at 12:48:32PM -0800, Linus Torvalds wrote:
> >> (You can also force the problem with vmalloc() an then following the
> >> kernel page tables, but I hope nobody does that any more. I suspect
> >> I'm wrong, though, there's probably code that mixes vmalloc and
> >> physical page accesses in various drivers)
> >
> > Should vmalloc_to_page() (84 users)/vmalloc_to_pfn() (17 users) be
> > deprecated then? ;)
> 
> I do think that the "modern" way of doing it is
> "vmap()"/"vm_map_ram()" and friends, and it should be preferred over
> using vmalloc() and then looking up the pages.
> 
> But in the end, the two approaches really are equivalent, so it's not
> like it really matters. So I don't think we need to deprecate things
> officially, but obviously we should make people more aware of the
> whole virtual alias thing that crops up whenever you use any of these
> approaches.

So what should be the preferred way to ensure data gets flushed when
you've written directly to a page, and then want to read through the
vm_map_ram() virtual range? Should we be adding new semantics to
flush_kernel_dcache_page()?

-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org
www.netapp.com

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Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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To: Trond Myklebust <Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
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On Wed, Jan 5, 2011 at 1:16 PM, Trond Myklebust
<Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org> wrote:
>
> So what should be the preferred way to ensure data gets flushed when
> you've written directly to a page, and then want to read through the
> vm_map_ram() virtual range? Should we be adding new semantics to
> flush_kernel_dcache_page()?

The "preferred way" is actually simple: "don't do that". IOW, if some
page is accessed through a virtual mapping you've set up, then
_always_ access it through that virtual mapping.

Now, when that is impossible (and yes, it sometimes is), then you
should flush after doing all writes. And if you do the write through
the regular kernel mapping, you should use flush_dcache_page(). And if
you did it through the virtual mapping, you should use
"flush_kernel_vmap_range()" or whatever.

NOTE! I really didn't look those up very closely, and if the accesses
can happen concurrently you are basically screwed, so you do need to
do locking or something else to guarantee that there is some nice
sequential order.  And maybe I forgot something.  Which is why I do
suggest "don't do that" as a primary approach to the problem if at all
possible.

Oh, and you may need to flush before reading too (and many writes do
end up being "read-modify-write" cycles) in case it's possible that
you have stale data from a previous read that was then invalidated by
a write to the aliasing address. Even if that write was flushed out,
the stale read data may exist at the virtual address. I forget what
all we required - in the end the only sane model is "virtual caches
suck so bad that anybody who does them should be laughed at for being
a retard".

                            Linus
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.kernel.cross-arch
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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On Wed, 2011-01-05 at 13:30 -0800, Linus Torvalds wrote: 
> On Wed, Jan 5, 2011 at 1:16 PM, Trond Myklebust
> <Trond.Myklebust@netapp.com> wrote:
> >
> > So what should be the preferred way to ensure data gets flushed when
> > you've written directly to a page, and then want to read through the
> > vm_map_ram() virtual range? Should we be adding new semantics to
> > flush_kernel_dcache_page()?
> 
> The "preferred way" is actually simple: "don't do that". IOW, if some
> page is accessed through a virtual mapping you've set up, then
> _always_ access it through that virtual mapping.
> 
> Now, when that is impossible (and yes, it sometimes is), then you
> should flush after doing all writes. And if you do the write through
> the regular kernel mapping, you should use flush_dcache_page(). And if
> you did it through the virtual mapping, you should use
> "flush_kernel_vmap_range()" or whatever.
> 
> NOTE! I really didn't look those up very closely, and if the accesses
> can happen concurrently you are basically screwed, so you do need to
> do locking or something else to guarantee that there is some nice
> sequential order.  And maybe I forgot something.  Which is why I do
> suggest "don't do that" as a primary approach to the problem if at all
> possible.
> 
> Oh, and you may need to flush before reading too (and many writes do
> end up being "read-modify-write" cycles) in case it's possible that
> you have stale data from a previous read that was then invalidated by
> a write to the aliasing address. Even if that write was flushed out,
> the stale read data may exist at the virtual address. I forget what
> all we required - in the end the only sane model is "virtual caches
> suck so bad that anybody who does them should be laughed at for being
> a retard".

Yes. The fix I sent out was a call to invalidate_kernel_vmap_range(),
which takes care of invalidating the cache prior to a virtual address
read.

My question was specifically about the write through the regular kernel
mapping: according to Russell and my reading of the cachetlb.txt
documentation, flush_dcache_page() is only guaranteed to have an effect
on page cache pages.
flush_kernel_dcache_page() (not to be confused with flush_dcache_page)
would appear to be the closest fit according to my reading of the
documentation, however the ARM implementation appears to be a no-op...

-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust@netapp.com
www.netapp.com

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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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On Wed, 2011-01-05 at 18:06 -0500, Trond Myklebust wrote:
> On Wed, 2011-01-05 at 13:30 -0800, Linus Torvalds wrote: 
> > On Wed, Jan 5, 2011 at 1:16 PM, Trond Myklebust
> > <Trond.Myklebust@netapp.com> wrote:
> > >
> > > So what should be the preferred way to ensure data gets flushed when
> > > you've written directly to a page, and then want to read through the
> > > vm_map_ram() virtual range? Should we be adding new semantics to
> > > flush_kernel_dcache_page()?
> > 
> > The "preferred way" is actually simple: "don't do that". IOW, if some
> > page is accessed through a virtual mapping you've set up, then
> > _always_ access it through that virtual mapping.
> > 
> > Now, when that is impossible (and yes, it sometimes is), then you
> > should flush after doing all writes. And if you do the write through
> > the regular kernel mapping, you should use flush_dcache_page(). And if
> > you did it through the virtual mapping, you should use
> > "flush_kernel_vmap_range()" or whatever.
> > 
> > NOTE! I really didn't look those up very closely, and if the accesses
> > can happen concurrently you are basically screwed, so you do need to
> > do locking or something else to guarantee that there is some nice
> > sequential order.  And maybe I forgot something.  Which is why I do
> > suggest "don't do that" as a primary approach to the problem if at all
> > possible.
> > 
> > Oh, and you may need to flush before reading too (and many writes do
> > end up being "read-modify-write" cycles) in case it's possible that
> > you have stale data from a previous read that was then invalidated by
> > a write to the aliasing address. Even if that write was flushed out,
> > the stale read data may exist at the virtual address. I forget what
> > all we required - in the end the only sane model is "virtual caches
> > suck so bad that anybody who does them should be laughed at for being
> > a retard".
> 
> Yes. The fix I sent out was a call to invalidate_kernel_vmap_range(),
> which takes care of invalidating the cache prior to a virtual address
> read.
> 
> My question was specifically about the write through the regular kernel
> mapping: according to Russell and my reading of the cachetlb.txt
> documentation, flush_dcache_page() is only guaranteed to have an effect
> on page cache pages.
> flush_kernel_dcache_page() (not to be confused with flush_dcache_page)
> would appear to be the closest fit according to my reading of the
> documentation, however the ARM implementation appears to be a no-op...

It depends on exactly what you're doing.  In the worst case, (ping pong
reads and writes through both aliases) you have to flush and invalidate
both alias 1 alias 2 each time you access on one and then another.

Can you explain how the code works? it looks to me like you read the xdr
stuff through the vmap region then write it out directly to the pages?
*if* this is just a conversion, *and* you never need to read the new
data through the vmap alias, you might be able to get away with a
flush_dcache_page in nfs_readdir_release_array().  If the access pattern
is more complex, you'll need more stuff splashed through the loop
(including vmap invalidation/flushing).

 Is there any way you could just rewrite nfs_readdir_add_to_array() to
use the vmap address instead of doing a kmap?  That way everything will
go through a single alias and not end up with this incoherency.

James



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Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
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On Wed, Jan 5, 2011 at 3:06 PM, Trond Myklebust
<Trond.Myklebust@netapp.com> wrote:
>
> Yes. The fix I sent out was a call to invalidate_kernel_vmap_range(),
> which takes care of invalidating the cache prior to a virtual address
> read.
>
> My question was specifically about the write through the regular kernel
> mapping: according to Russell and my reading of the cachetlb.txt
> documentation, flush_dcache_page() is only guaranteed to have an effect
> on page cache pages.

I don't think that should ever matter. It's not like the hardware can
know whether it's a dcache page or not.

And if the sw implementation cares, it's doing something really odd.
But who knows - there's a lot of crap out there, and people sometimes
do really odd things to work around the brokenness of a VIVT cache
with aliases.

                       Linus
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On Wed, Jan 05, 2011 at 03:28:53PM -0800, Linus Torvalds wrote:
> On Wed, Jan 5, 2011 at 3:06 PM, Trond Myklebust
> <Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org> wrote:
> >
> > Yes. The fix I sent out was a call to invalidate_kernel_vmap_range(),
> > which takes care of invalidating the cache prior to a virtual address
> > read.
> >
> > My question was specifically about the write through the regular kernel
> > mapping: according to Russell and my reading of the cachetlb.txt
> > documentation, flush_dcache_page() is only guaranteed to have an effect
> > on page cache pages.
> 
> I don't think that should ever matter. It's not like the hardware can
> know whether it's a dcache page or not.
> 
> And if the sw implementation cares, it's doing something really odd.

>From the hardware perspective you're correct that it doesn't.  However,
from the efficient implementation perspective it does matter.

Take for example the read-ahead done on block devices.  We don't want to
flush all those pages that were read in when we don't know that they're
ever going to end up in a user mapping.  So what's commonly done (as
suggested by DaveM) is that flush_dcache_page() detects that it's a
dcache page, ensures that there's no user mappings, and sets a 'dirty'
flag.  This flag is guaranteed to be clear when new, clean, unread
pages enter the page cache.

When the page eventually ends up in a user mapping, that dirty flag is
checked and the necessary cache flushing done at that point.

Note that when there are user mappings, flush_dcache_page() has to flush
those mappings too, otherwise mmap() <-> read()/write() coherency breaks.
I believe this was what flush_dcache_page() was created to resolve.

flush_kernel_dcache_page() was to solve the problem of PIO drivers
writing to dcache pages, so that data written into the kernel mapping
would be visible to subsequent user mappings.

We chose a different overall approach - which had already been adopted by
PPC - where we invert the meaning of this 'dirty' bit to mean that it's
clean.  So every new page cache page starts out life as being marked
dirty and so nothing needs to be done at flush_kernel_dcache_page().
We continue to use davem's optimization but with the changed meaning of
the bit, but as we now support SMP we do the flushing at set_pte_at()
time.

This also means that we don't have to rely on the (endlessly) buggy PIO
drivers remembering to add flush_kernel_dcache_page() calls - something
which has been a source of constant never-ending pain for us.

The final piece of the jigsaw is flush_anon_page() which deals with
kernel<->user coherency for anonymous pages by flushing both the user
and kernel sides of the mapping.  This was to solve direct-io coherency
problems.

As the users of flush_anon_page() always do:

	flush_anon_page(vma, page, addr);
	flush_dcache_page(page);

and documentation doesn't appear to imply that this will always be the
case, we restrict flush_dcache_page() to only work on page cache pages,
otherwise we end up flushing the kernel-side mapping multiple time in
succession.

Maybe we should make flush_anon_page() only flush the user mapping,
stipulate that it shall always be followed by flush_dcache_page(),
which shall flush the kernel side mapping even for anonymous pages?
That sounds to me like a recipe for missing flush_dcache_page() calls
causing bugs.
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On Wed, 2011-01-05 at 23:28 +0000, James Bottomley wrote:
> Can you explain how the code works? it looks to me like you read the xdr
> stuff through the vmap region then write it out directly to the pages? 

OK, I think I see how this is supposed to work:  It's a sequential loop
of reading in via the pages (i.e. through the kernel mapping) and then
updating those pages via the vmap.  In which case, I think this patch is
what you need.

The theory of operation is that the readdir on pages actually uses the
network DMA operations to perform, so when it's finished, the underlying
page is up to date.  After this you invalidate the vmap range, so we
have no cache lines above it (so it picks up the values from the
uptodate page).  Finally, after the operation on the vmap region has
finished, you flush it so that any updated contents go back to the pages
themselves before the next iteration begins.

Does this look right to people?  I've verified it fixes the issues on
parisc.

James

---

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 996dd89..bde1911 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -587,12 +587,16 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
 		if (status < 0)
 			break;
 		pglen = status;
+
+		invalidate_kernel_vmap_range(pages_ptr, pglen);
+
 		status = nfs_readdir_page_filler(desc, &entry, pages_ptr, page, pglen);
 		if (status < 0) {
 			if (status == -ENOSPC)
 				status = 0;
 			break;
 		}
+		flush_kernel_vmap_range(pages_ptr, pglen);
 	} while (array->eof_index < 0);
 
 	nfs_readdir_free_large_page(pages_ptr, pages, array_size);



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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Russell King - ARM Linux <linux@arm.linux.org.uk>,
	linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/8690>

On Thu, 2011-01-06 at 11:40 -0600, James Bottomley wrote: 
> On Wed, 2011-01-05 at 23:28 +0000, James Bottomley wrote:
> > Can you explain how the code works? it looks to me like you read the xdr
> > stuff through the vmap region then write it out directly to the pages? 
> 
> OK, I think I see how this is supposed to work:  It's a sequential loop
> of reading in via the pages (i.e. through the kernel mapping) and then
> updating those pages via the vmap.  In which case, I think this patch is
> what you need.
> 
> The theory of operation is that the readdir on pages actually uses the
> network DMA operations to perform, so when it's finished, the underlying
> page is up to date.  After this you invalidate the vmap range, so we
> have no cache lines above it (so it picks up the values from the
> uptodate page).  Finally, after the operation on the vmap region has
> finished, you flush it so that any updated contents go back to the pages
> themselves before the next iteration begins.
> 
> Does this look right to people?  I've verified it fixes the issues on
> parisc.
> 
> James
> 
> ---
> 
> diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
> index 996dd89..bde1911 100644
> --- a/fs/nfs/dir.c
> +++ b/fs/nfs/dir.c
> @@ -587,12 +587,16 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
>  		if (status < 0)
>  			break;
>  		pglen = status;
> +
> +		invalidate_kernel_vmap_range(pages_ptr, pglen);
> +
>  		status = nfs_readdir_page_filler(desc, &entry, pages_ptr, page, pglen);
>  		if (status < 0) {
>  			if (status == -ENOSPC)
>  				status = 0;
>  			break;
>  		}
> +		flush_kernel_vmap_range(pages_ptr, pglen);

Why is this line needed? We're not writing through the virtual mapping.

We checked using just the invalidate_kernel_vmap_range(), and that
appeared to suffice to fix the problem on ARM.

Cheers
  Trond
-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust@netapp.com
www.netapp.com


From - Thu Nov 08 21:06:40 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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On Thu, 2011-01-06 at 12:47 -0500, Trond Myklebust wrote:
> On Thu, 2011-01-06 at 11:40 -0600, James Bottomley wrote: 
> > On Wed, 2011-01-05 at 23:28 +0000, James Bottomley wrote:
> > > Can you explain how the code works? it looks to me like you read the xdr
> > > stuff through the vmap region then write it out directly to the pages? 
> > 
> > OK, I think I see how this is supposed to work:  It's a sequential loop
> > of reading in via the pages (i.e. through the kernel mapping) and then
> > updating those pages via the vmap.  In which case, I think this patch is
> > what you need.
> > 
> > The theory of operation is that the readdir on pages actually uses the
> > network DMA operations to perform, so when it's finished, the underlying
> > page is up to date.  After this you invalidate the vmap range, so we
> > have no cache lines above it (so it picks up the values from the
> > uptodate page).  Finally, after the operation on the vmap region has
> > finished, you flush it so that any updated contents go back to the pages
> > themselves before the next iteration begins.
> > 
> > Does this look right to people?  I've verified it fixes the issues on
> > parisc.
> > 
> > James
> > 
> > ---
> > 
> > diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
> > index 996dd89..bde1911 100644
> > --- a/fs/nfs/dir.c
> > +++ b/fs/nfs/dir.c
> > @@ -587,12 +587,16 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
> >  		if (status < 0)
> >  			break;
> >  		pglen = status;
> > +
> > +		invalidate_kernel_vmap_range(pages_ptr, pglen);
> > +
> >  		status = nfs_readdir_page_filler(desc, &entry, pages_ptr, page, pglen);
> >  		if (status < 0) {
> >  			if (status == -ENOSPC)
> >  				status = 0;
> >  			break;
> >  		}
> > +		flush_kernel_vmap_range(pages_ptr, pglen);
> 
> Why is this line needed? We're not writing through the virtual mapping.

If you're not altering it, it isn't ... the problem on parisc is that
invalidate is a nop for us because flush does it all, but I can fix
that.

James

> We checked using just the invalidate_kernel_vmap_range(), and that
> appeared to suffice to fix the problem on ARM.
> 
> Cheers
>   Trond



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Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel.cross-arch,gmane.linux.nfs,gmane.linux.ports.parisc,gmane.linux.kernel
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On Thu, Jan 6, 2011 at 9:47 AM, Trond Myklebust
<Trond.Myklebust@netapp.com> wrote:
>
> Why is this line needed? We're not writing through the virtual mapping.

I haven't looked at the sequence of accesses, but you need to be
_very_ aware that "write-through" is absolutely NOT sufficient for
cache coherency.

In cache coherency, you have three options:

 - true coherency (eg physically indexed/tagged caches)

 - exclusion (eg virtual caches, but with an exclusion guarantee that
guarantees that aliases cannot happen: either by using physical
tagging or by not allowing cases that could cause virtual aliases)

 - write-through AND non-cached reads (ie "no caching at all").

You seem to be forgetting the "no cached reads" part. It's not
sufficient to flush after a write - you need to make sure that you
also don't have a cached copy of the alias for the read.

So "We're not writing through the virtual mapping" is NOT a sufficient
excuse. If you're reading through the virtual mapping, you need to
make sure that the virtual mapping is flushed _after_ any writes
through any other mapping and _before_ any reads through the virtual
one.

This is why you really really really generally don't want to have
aliasing. Purely virtual caches are pure crap. Really.

                       Linus

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	Linus Torvalds <torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
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On Thu, Jan 06, 2011 at 11:40:13AM -0600, James Bottomley wrote:
> On Wed, 2011-01-05 at 23:28 +0000, James Bottomley wrote:
> > Can you explain how the code works? it looks to me like you read the xdr
> > stuff through the vmap region then write it out directly to the pages? 
> 
> OK, I think I see how this is supposed to work:  It's a sequential loop
> of reading in via the pages (i.e. through the kernel mapping) and then
> updating those pages via the vmap.  In which case, I think this patch is
> what you need.
> 
> The theory of operation is that the readdir on pages actually uses the
> network DMA operations to perform, so when it's finished, the underlying

What network DMA operations - what if your NIC doesn't do DMA because
it's an SMSC device?
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.kernel.cross-arch
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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On Thu, 2011-01-06 at 18:05 +0000, Russell King - ARM Linux wrote:
> On Thu, Jan 06, 2011 at 11:40:13AM -0600, James Bottomley wrote:
> > On Wed, 2011-01-05 at 23:28 +0000, James Bottomley wrote:
> > > Can you explain how the code works? it looks to me like you read the xdr
> > > stuff through the vmap region then write it out directly to the pages? 
> > 
> > OK, I think I see how this is supposed to work:  It's a sequential loop
> > of reading in via the pages (i.e. through the kernel mapping) and then
> > updating those pages via the vmap.  In which case, I think this patch is
> > what you need.
> > 
> > The theory of operation is that the readdir on pages actually uses the
> > network DMA operations to perform, so when it's finished, the underlying
> 
> What network DMA operations - what if your NIC doesn't do DMA because
> it's an SMSC device?

So this is the danger area ... we might be caught by our own flushing
tricks.  I can't test this on parisc since all my network drivers use
DMA (which automatically coheres the kernel mapping by
flush/invalidate).

What should happen is that the kernel mapping pages go through the
->readdir() path.  Any return from this has to be ready to map the pages
back to user space, so the kernel alias has to be flushed to make the
underlying page up to date.

The exception is pages we haven't yet mapped to userspace.  Here we set
the PG_dcache_dirty bit (sparc trick) but don't flush the page, since we
expect the addition of a userspace mapping will detect this case and do
the flush and clear the bit before the mapping goes live.  I assume
you're thinking that because this page is allocated and freed internally
to NFS, it never gets a userspace mapping and therefore, we can return
from ->readdir() with a dirty kernel cache (and the corresponding flag
set)?  I think that is a possible hypothesis in certain cases.

James


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On Thu, 2011-01-06 at 12:14 -0600, James Bottomley wrote:
> On Thu, 2011-01-06 at 18:05 +0000, Russell King - ARM Linux wrote:
> > What network DMA operations - what if your NIC doesn't do DMA because
> > it's an SMSC device?
> 
> So this is the danger area ... we might be caught by our own flushing
> tricks.  I can't test this on parisc since all my network drivers use
> DMA (which automatically coheres the kernel mapping by
> flush/invalidate).
> 
> What should happen is that the kernel mapping pages go through the
> ->readdir() path.  Any return from this has to be ready to map the pages
> back to user space, so the kernel alias has to be flushed to make the
> underlying page up to date.
> 
> The exception is pages we haven't yet mapped to userspace.  Here we set
> the PG_dcache_dirty bit (sparc trick) but don't flush the page, since we
> expect the addition of a userspace mapping will detect this case and do
> the flush and clear the bit before the mapping goes live.  I assume
> you're thinking that because this page is allocated and freed internally
> to NFS, it never gets a userspace mapping and therefore, we can return
> from ->readdir() with a dirty kernel cache (and the corresponding flag
> set)?  I think that is a possible hypothesis in certain cases.

OK, so thinking about this, it seems that the only danger is actually
what NFS is doing: reading cache pages via a vmap.  In that case, since
the requirement is to invalidate the vmap range to prepare for read, we
could have invalidate_kernel_vmap_range loop over the underlying pages
and flush them through the kernel alias if the architecture specific
flag indicates their contents might be dirty.

The loop adds expense that is probably largely unnecessary to
invalidate_kernel_vmap_range() but the alternative is adding to the API
proliferation with something that only flushes the kernel pages if the
arch specific flag says they're dirty.

James


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Cc: Trond Myklebust <Trond.Myklebust@netapp.com>,
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>>>>> "James" == James Bottomley <James.Bottomley@HansenPartnership.com> writes:

James> On Wed, 2011-01-05 at 23:28 +0000, James Bottomley wrote:
>> Can you explain how the code works? it looks to me like you read the xdr
>> stuff through the vmap region then write it out directly to the pages? 

James> OK, I think I see how this is supposed to work: It's a
James> sequential loop of reading in via the pages (i.e. through the
James> kernel mapping) and then updating those pages via the vmap.  In
James> which case, I think this patch is what you need.

James> The theory of operation is that the readdir on pages actually
James> uses the network DMA operations to perform, so when it's
James> finished, the underlying page is up to date.  After this you
James> invalidate the vmap range, so we have no cache lines above it
James> (so it picks up the values from the uptodate page).  Finally,
James> after the operation on the vmap region has finished, you flush
James> it so that any updated contents go back to the pages themselves
James> before the next iteration begins.

You need to re-spin this patch to include the above description into
the magic steps your taking here, or at least document it more clearly
somewhere why you need to make these funky steps.  

John


James> James

James> ---

James> diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
James> index 996dd89..bde1911 100644
James> --- a/fs/nfs/dir.c
James> +++ b/fs/nfs/dir.c
James> @@ -587,12 +587,16 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
James>  		if (status < 0)
James>  			break;
James>  		pglen = status;
James> +
James> +		invalidate_kernel_vmap_range(pages_ptr, pglen);
James> +
James>  		status = nfs_readdir_page_filler(desc, &entry, pages_ptr, page, pglen);
James>  		if (status < 0) {
James>  			if (status == -ENOSPC)
James>  				status = 0;
James>  			break;
James>  		}
James> +		flush_kernel_vmap_range(pages_ptr, pglen);
James>  	} while (array->eof_index < 0);
 
James>  	nfs_readdir_free_large_page(pages_ptr, pages, array_size);


James> --
James> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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On Thu, 2011-01-06 at 12:25 -0600, James Bottomley wrote:
> OK, so thinking about this, it seems that the only danger is actually
> what NFS is doing: reading cache pages via a vmap.  In that case, since
> the requirement is to invalidate the vmap range to prepare for read, we
> could have invalidate_kernel_vmap_range loop over the underlying pages
> and flush them through the kernel alias if the architecture specific
> flag indicates their contents might be dirty.
> 
> The loop adds expense that is probably largely unnecessary to
> invalidate_kernel_vmap_range() but the alternative is adding to the API
> proliferation with something that only flushes the kernel pages if the
> arch specific flag says they're dirty.

This is what I think the arm patch would look like (example only: I
can't compile it).  Is something like this too expensive? the loop can't
be optimised away because of the need to check the pages (and
vmalloc_to_page is a three level page table lookup).

James

---

diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 3acd8fa..34469ca 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -414,8 +414,17 @@ static inline void flush_kernel_vmap_range(void *addr, int size)
 }
 static inline void invalidate_kernel_vmap_range(void *addr, int size)
 {
-	if ((cache_is_vivt() || cache_is_vipt_aliasing()))
-	  __cpuc_flush_dcache_area(addr, (size_t)size);
+	if ((cache_is_vivt() || cache_is_vipt_aliasing())) {
+		void *cursor = addr;
+
+		for ( ; cursor < addr + size; cursor += PAGE_SIZE) {
+			struct page *page = vmalloc_to_page(cursor);
+
+			if (!test_and_set_bit(PG_dcache_clean, &page->flags))
+				__flush_dcache_page(page_mapping(page), page);
+		}
+		__cpuc_flush_dcache_area(addr, (size_t)size);
+	}
 }
 
 #define ARCH_HAS_FLUSH_ANON_PAGE


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From: Greg Kroah-Hartman <gregkh@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 12/36] parisc: cleanup console handling
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From: Jiri Slaby <jslaby@suse.cz>

* use newly added for_each_console for iterating consoles
* add proper console locking
* do not initialize tmp twice
* no need to declare console_drivers, it's already done in console.h

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/parisc/kernel/pdc_cons.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 66d1f17..11bdd68 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -92,8 +92,6 @@ static int pdc_console_setup(struct console *co, char *options)
 
 static struct timer_list pdc_console_timer;
 
-extern struct console * console_drivers;

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From: Trond Myklebust <Trond.Myklebust@netapp.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
Date: Fri, 07 Jan 2011 13:53:25 -0500
Organization: NetApp Inc
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Thu, 2011-01-06 at 09:55 -0800, Linus Torvalds wrote: 
> On Thu, Jan 6, 2011 at 9:47 AM, Trond Myklebust
> <Trond.Myklebust@netapp.com> wrote:
> >
> > Why is this line needed? We're not writing through the virtual mapping.
> 
> I haven't looked at the sequence of accesses, but you need to be
> _very_ aware that "write-through" is absolutely NOT sufficient for
> cache coherency.
> 
> In cache coherency, you have three options:
> 
>  - true coherency (eg physically indexed/tagged caches)
> 
>  - exclusion (eg virtual caches, but with an exclusion guarantee that
> guarantees that aliases cannot happen: either by using physical
> tagging or by not allowing cases that could cause virtual aliases)
> 
>  - write-through AND non-cached reads (ie "no caching at all").
> 
> You seem to be forgetting the "no cached reads" part. It's not
> sufficient to flush after a write - you need to make sure that you
> also don't have a cached copy of the alias for the read.
> 
> So "We're not writing through the virtual mapping" is NOT a sufficient
> excuse. If you're reading through the virtual mapping, you need to
> make sure that the virtual mapping is flushed _after_ any writes
> through any other mapping and _before_ any reads through the virtual
> one.

I'm aware of that. That part should be taken care of by the call to
invalidate_kernel_vmap_range() which was in both James and my patch.

There is already code in the SUNRPC layer that calls flush_dcache_page()
after writing (although as Russell pointed out earlier, that is
apparently a no-op for non-page cache pages such as these).

> This is why you really really really generally don't want to have
> aliasing. Purely virtual caches are pure crap. Really.

Well, it looks as if NOMMU is giving us problems due to the lack of a
vm_map_ram() (see https://bugzilla.kernel.org/show_bug.cgi?id=26262).

I'd still like to keep the existing code for those architectures that
don't have problems, since that allows us to send 32k READDIR requests
instead of being limited to 4k. For large directories, that is a clear
win.
For the NOMMU case we will just go back to using a single page for
storage (and 4k READDIR requests only). Should I just do the same for
architectures like ARM and PARISC?

-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust@netapp.com
www.netapp.com


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From: Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>
Newsgroups: gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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On Fri, Jan 07, 2011 at 01:53:25PM -0500, Trond Myklebust wrote:
> I'd still like to keep the existing code for those architectures that
> don't have problems, since that allows us to send 32k READDIR requests
> instead of being limited to 4k. For large directories, that is a clear
> win.
> For the NOMMU case we will just go back to using a single page for
> storage (and 4k READDIR requests only). Should I just do the same for
> architectures like ARM and PARISC?

I think you said that readdir reads via the vmalloc mapping of the
group of pages, but XDR writes to the individual pages.

As I understand NFS, you receive a packet, you then have to use XDR
to unpack the data, which you presumably write into the set of
struct page *'s using kmap?

Isn't a solution to have XDR write directly into the vmalloc mapping
rather than using struct page * and kmap?
--
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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On Fri, 2011-01-07 at 13:53 -0500, Trond Myklebust wrote:
> There is already code in the SUNRPC layer that calls flush_dcache_page()
> after writing (although as Russell pointed out earlier, that is
> apparently a no-op for non-page cache pages such as these).

Actually (and possibly fortunately) none of our flush_dcache_page()
implementations do this (check for an actual non page cache page and nop
if they find one).  Although, they may according to the docs which say
that flush_dcache_page() is only called on page cache pages.

But it's definitely using the API outside its documented scope.  We have
lots of places in the VFS where we don't call flush_dcache_page() even
after altering a kernel page (even in the page cache) if we know the
page will never be mapped to userspace.  The assumption here is that the
kernel never sets up non-user aliases of these pages, so not doing the
flushing is an optimisation since we only access them through the kernel
address space.  Of course, setting up vmap areas of these pages within
the kernel violates this assumption.

> > This is why you really really really generally don't want to have
> > aliasing. Purely virtual caches are pure crap. Really.
> 
> Well, it looks as if NOMMU is giving us problems due to the lack of a
> vm_map_ram() (see https://bugzilla.kernel.org/show_bug.cgi?id=26262).
> 
> I'd still like to keep the existing code for those architectures that
> don't have problems, since that allows us to send 32k READDIR requests
> instead of being limited to 4k. For large directories, that is a clear
> win.
> For the NOMMU case we will just go back to using a single page for
> storage (and 4k READDIR requests only). Should I just do the same for
> architectures like ARM and PARISC?

Well, that would include any VI architecture (like SPARC and others) as
well.  However, I think we can just make the
invalidate_kernel_vmap_range() work.

James



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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.kernel.cross-arch
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
Date: Fri, 07 Jan 2011 13:11:07 -0600
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Cc: Trond Myklebust <Trond.Myklebust@netapp.com>,
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On Fri, 2011-01-07 at 19:02 +0000, Russell King - ARM Linux wrote:
> On Fri, Jan 07, 2011 at 01:53:25PM -0500, Trond Myklebust wrote:
> > I'd still like to keep the existing code for those architectures that
> > don't have problems, since that allows us to send 32k READDIR requests
> > instead of being limited to 4k. For large directories, that is a clear
> > win.
> > For the NOMMU case we will just go back to using a single page for
> > storage (and 4k READDIR requests only). Should I just do the same for
> > architectures like ARM and PARISC?
> 
> I think you said that readdir reads via the vmalloc mapping of the
> group of pages, but XDR writes to the individual pages.

Actually it's the other way around, but the point still stands.

> As I understand NFS, you receive a packet, you then have to use XDR
> to unpack the data, which you presumably write into the set of
> struct page *'s using kmap?
> 
> Isn't a solution to have XDR write directly into the vmalloc mapping
> rather than using struct page * and kmap?

So, unfortuantely, I looked at doing this and we can't.  the ->readdir()
call takes an array of pages, not a kernel virtual address of the pages,
so there's no way to tell it to use a different mapping from the usual
kernel one on them.

On the other hand, the xdr routines, since they take the pages anyway,
could use a scatterlist approach to writing through the kernel mapping
instead of using vmap ... we have all the machinery for this in
lib/scatterlist.c ... it's not designed for this case, since it's
designed to allow arbitrary linear reads and writes on a block
scatterlist, but the principle is the same ... it looks like it would be
rather a big patch, though ... 

James


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Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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On Fri, 2011-01-07 at 19:02 +0000, Russell King - ARM Linux wrote: 
> On Fri, Jan 07, 2011 at 01:53:25PM -0500, Trond Myklebust wrote:
> > I'd still like to keep the existing code for those architectures that
> > don't have problems, since that allows us to send 32k READDIR requests
> > instead of being limited to 4k. For large directories, that is a clear
> > win.
> > For the NOMMU case we will just go back to using a single page for
> > storage (and 4k READDIR requests only). Should I just do the same for
> > architectures like ARM and PARISC?
> 
> I think you said that readdir reads via the vmalloc mapping of the
> group of pages, but XDR writes to the individual pages.
> 
> As I understand NFS, you receive a packet, you then have to use XDR
> to unpack the data, which you presumably write into the set of
> struct page *'s using kmap?

No. The socket or RDMA layers place the data directly into the struct
pages. We then unpack them in the XDR layer using the vmalloc mapping
and place the resulting processed readdir data into the page cache.

> Isn't a solution to have XDR write directly into the vmalloc mapping
> rather than using struct page * and kmap?

Unfortunately that isn't possible. :-(

-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust@netapp.com
www.netapp.com


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Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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On Fri, 2011-01-07 at 13:11 -0600, James Bottomley wrote: 
> On the other hand, the xdr routines, since they take the pages anyway,
> could use a scatterlist approach to writing through the kernel mapping
> instead of using vmap ... we have all the machinery for this in
> lib/scatterlist.c ... it's not designed for this case, since it's
> designed to allow arbitrary linear reads and writes on a block
> scatterlist, but the principle is the same ... it looks like it would be
> rather a big patch, though ... 

The following alternative seems to work for me, but has only been
lightly tested so far. It's a bit large for a stable patch, but not too
ungainly.

It modifies xdr_stream, adding the ability to iterate through page data.
To avoid kmap()/kunmap(), it does require that pages be allocated in
lowmem, but since the only use case here is when using page arrays as
temporary buffers, that seems like an acceptable compromise.

Cheers
  Trond

--------------------------------------------------------------------------------- 
>From f87f13e3198ec536c1b9cfe19ad47df4fb922382 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
Date: Fri, 7 Jan 2011 18:51:33 -0500
Subject: [PATCH] NFS: Don't use vm_map_ram() in readdir

vm_map_ram() is not available on NOMMU platforms, and causes trouble
on incoherrent architectures such as ARM when we access the page data
through both the direct and the virtual mapping.

The alternative is to use the direct mapping to access page data
for the case when we are not crossing a page boundary, but to copy
the data into a linear scratch buffer when we are accessing data
that spans page boundaries.

Signed-off-by: Trond Myklebust <Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
---
 fs/nfs/dir.c               |   45 ++++++++---------
 fs/nfs/nfs2xdr.c           |    6 --
 fs/nfs/nfs3xdr.c           |    6 --
 fs/nfs/nfs4xdr.c           |    6 --
 include/linux/sunrpc/xdr.h |    4 +-
 net/sunrpc/xdr.c           |  115 ++++++++++++++++++++++++++++++++++++--------
 6 files changed, 120 insertions(+), 62 deletions(-)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 996dd89..ad9e5e0 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -33,7 +33,6 @@
 #include <linux/namei.h>
 #include <linux/mount.h>
 #include <linux/sched.h>
-#include <linux/vmalloc.h>
 #include <linux/kmemleak.h>
 
 #include "delegation.h"
@@ -459,25 +458,27 @@ out:
 /* Perform conversion from xdr to cache array */
 static
 int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *entry,
-				void *xdr_page, struct page *page, unsigned int buflen)
+				struct page **xdr_pages, struct page *page, unsigned int buflen)
 {
 	struct xdr_stream stream;
-	struct xdr_buf buf;
-	__be32 *ptr = xdr_page;
+	struct xdr_buf buf = {
+		.pages = xdr_pages,
+		.page_len = buflen,
+		.buflen = buflen,
+		.len = buflen,
+	};
 	struct nfs_cache_array *array;
 	unsigned int count = 0;
+	struct page *scratch;
 	int status;
 
-	buf.head->iov_base = xdr_page;
-	buf.head->iov_len = buflen;
-	buf.tail->iov_len = 0;
-	buf.page_base = 0;
-	buf.page_len = 0;
-	buf.buflen = buf.head->iov_len;
-	buf.len = buf.head->iov_len;
-
-	xdr_init_decode(&stream, &buf, ptr);
+	scratch = alloc_page(GFP_KERNEL);
+	if (scratch == NULL)
+		return -ENOMEM;
 
+	xdr_init_decode(&stream, &buf, NULL);
+	xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
+	xdr_enter_page(&stream, buflen);
 
 	do {
 		status = xdr_decode(desc, entry, &stream);
@@ -506,6 +507,8 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en
 		} else
 			status = PTR_ERR(array);
 	}
+
+	put_page(scratch);
 	return status;
 }
 
@@ -521,7 +524,6 @@ static
 void nfs_readdir_free_large_page(void *ptr, struct page **pages,
 		unsigned int npages)
 {
-	vm_unmap_ram(ptr, npages);
 	nfs_readdir_free_pagearray(pages, npages);
 }
 
@@ -530,9 +532,8 @@ void nfs_readdir_free_large_page(void *ptr, struct page **pages,
  * to nfs_readdir_free_large_page
  */
 static
-void *nfs_readdir_large_page(struct page **pages, unsigned int npages)
+int nfs_readdir_large_page(struct page **pages, unsigned int npages)
 {
-	void *ptr;
 	unsigned int i;
 
 	for (i = 0; i < npages; i++) {
@@ -541,13 +542,11 @@ void *nfs_readdir_large_page(struct page **pages, unsigned int npages)
 			goto out_freepages;
 		pages[i] = page;
 	}
+	return 0;
 
-	ptr = vm_map_ram(pages, npages, 0, PAGE_KERNEL);
-	if (!IS_ERR_OR_NULL(ptr))
-		return ptr;
 out_freepages:
 	nfs_readdir_free_pagearray(pages, i);
-	return NULL;
+	return -ENOMEM;
 }
 
 static
@@ -577,8 +576,8 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
 	memset(array, 0, sizeof(struct nfs_cache_array));
 	array->eof_index = -1;
 
-	pages_ptr = nfs_readdir_large_page(pages, array_size);
-	if (!pages_ptr)
+	status = nfs_readdir_large_page(pages, array_size);
+	if (status < 0)
 		goto out_release_array;
 	do {
 		unsigned int pglen;
@@ -587,7 +586,7 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
 		if (status < 0)
 			break;
 		pglen = status;
-		status = nfs_readdir_page_filler(desc, &entry, pages_ptr, page, pglen);
+		status = nfs_readdir_page_filler(desc, &entry, pages, page, pglen);
 		if (status < 0) {
 			if (status == -ENOSPC)
 				status = 0;
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index 5914a19..b382a1b 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -487,12 +487,6 @@ nfs_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, struct nfs_se
 
 	entry->d_type = DT_UNKNOWN;
 
-	p = xdr_inline_peek(xdr, 8);
-	if (p != NULL)
-		entry->eof = !p[0] && p[1];
-	else
-		entry->eof = 0;
-
 	return p;
 
 out_overflow:
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index f6cc60f..ba91236 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -647,12 +647,6 @@ nfs3_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, struct nfs_s
 			memset((u8*)(entry->fh), 0, sizeof(*entry->fh));
 	}
 
-	p = xdr_inline_peek(xdr, 8);
-	if (p != NULL)
-		entry->eof = !p[0] && p[1];
-	else
-		entry->eof = 0;
-
 	return p;
 
 out_overflow:
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 9f1826b..0662a98 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -6215,12 +6215,6 @@ __be32 *nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
 	if (verify_attr_len(xdr, p, len) < 0)
 		goto out_overflow;
 
-	p = xdr_inline_peek(xdr, 8);
-	if (p != NULL)
-		entry->eof = !p[0] && p[1];
-	else
-		entry->eof = 0;
-
 	return p;
 
 out_overflow:
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 498ab93..7783c68 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -201,6 +201,8 @@ struct xdr_stream {
 
 	__be32 *end;		/* end of available buffer space */
 	struct kvec *iov;	/* pointer to the current kvec */
+	struct kvec scratch;	/* Scratch buffer */
+	struct page **page_ptr;	/* pointer to the current page */
 };
 
 extern void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p);
@@ -208,7 +210,7 @@ extern __be32 *xdr_reserve_space(struct xdr_stream *xdr, size_t nbytes);
 extern void xdr_write_pages(struct xdr_stream *xdr, struct page **pages,
 		unsigned int base, unsigned int len);
 extern void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p);
-extern __be32 *xdr_inline_peek(struct xdr_stream *xdr, size_t nbytes);
+extern void xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_t buflen);
 extern __be32 *xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes);
 extern void xdr_read_pages(struct xdr_stream *xdr, unsigned int len);
 extern void xdr_enter_page(struct xdr_stream *xdr, unsigned int len);
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index cd9e841..cff0974 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -569,29 +569,112 @@ void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p)
 	xdr->iov = iov;
 	xdr->p = p;
 	xdr->end = (__be32 *)((char *)iov->iov_base + len);
+	xdr->page_ptr = NULL;
+	xdr->scratch.iov_base = NULL;
+	xdr->scratch.iov_len = 0;
 }
 EXPORT_SYMBOL_GPL(xdr_init_decode);
 
 /**
- * xdr_inline_peek - Allow read-ahead in the XDR data stream
+ * xdr_set_scratch_buffer - Attach a scratch buffer for decoding data.
  * @xdr: pointer to xdr_stream struct
- * @nbytes: number of bytes of data to decode
+ * @buf: pointer to an empty buffer
+ * @buflen: size of 'buf'
  *
- * Check if the input buffer is long enough to enable us to decode
- * 'nbytes' more bytes of data starting at the current position.
- * If so return the current pointer without updating the current
- * pointer position.
+ * The scratch buffer is used when decoding from an array of pages.
+ * If an xdr_inline_decode() call spans across page boundaries, then
+ * we copy the data into the scratch buffer in order to allow linear
+ * access.
  */
-__be32 * xdr_inline_peek(struct xdr_stream *xdr, size_t nbytes)
+void xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_t buflen)
+{
+	xdr->scratch.iov_base = buf;
+	xdr->scratch.iov_len = buflen;
+}
+EXPORT_SYMBOL_GPL(xdr_set_scratch_buffer);
+
+static int xdr_set_page_base(struct xdr_stream *xdr,
+		unsigned int base, unsigned int len)
+{
+	unsigned int pgnr;
+	unsigned int maxlen;
+	unsigned int pgoff;
+	unsigned int pgend;
+	void *kaddr;
+
+	maxlen = xdr->buf->page_len;
+	if (base >= maxlen)
+		return -EINVAL;
+	maxlen -= base;
+
+	if (len > maxlen)
+		len = maxlen;
+
+	base += xdr->buf->page_base;
+
+	pgnr = base >> PAGE_SHIFT;
+	xdr->page_ptr = &xdr->buf->pages[pgnr];
+	kaddr = page_address(*xdr->page_ptr);
+
+	pgoff = base & ~PAGE_MASK;
+	xdr->p = (__be32*)(kaddr + pgoff);
+
+	pgend = pgoff + len;
+	if (pgend > PAGE_SIZE)
+		pgend = PAGE_SIZE;
+	xdr->end = (__be32*)(kaddr + pgend);
+	return 0;
+}
+
+static int xdr_set_next_page(struct xdr_stream *xdr)
+{
+	unsigned int newbase;
+
+	newbase = (1 + xdr->page_ptr - xdr->buf->pages) << PAGE_SHIFT;
+	newbase -= xdr->buf->page_base;
+
+	return xdr_set_page_base(xdr, newbase, PAGE_SIZE);
+}
+
+static __be32 * __xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes)
 {
 	__be32 *p = xdr->p;
 	__be32 *q = p + XDR_QUADLEN(nbytes);
 
 	if (unlikely(q > xdr->end || q < p))
 		return NULL;
+	xdr->p = q;
 	return p;
 }
-EXPORT_SYMBOL_GPL(xdr_inline_peek);
+
+static __be32 *xdr_page_inline_decode(struct xdr_stream *xdr, size_t nbytes)
+{
+	size_t cplen;
+	void *cpdest;
+	__be32 *p;
+
+	if (xdr->p == xdr->end && xdr_set_next_page(xdr) < 0)
+		return NULL;
+
+	p = __xdr_inline_decode(xdr, nbytes);
+	if (p != NULL)
+		return p;
+
+	if (nbytes > xdr->scratch.iov_len)
+		return NULL;
+	cplen = (char *)xdr->end - (char *)xdr->p;
+	cpdest = xdr->scratch.iov_base;
+	memcpy(cpdest, xdr->p, cplen);
+	cpdest += cplen;
+	nbytes -= cplen;
+	if (xdr_set_next_page(xdr) < 0)
+		return NULL;
+	p = __xdr_inline_decode(xdr, nbytes);
+	if (p == NULL)
+		return NULL;
+	memcpy(cpdest, p, nbytes);
+	return xdr->scratch.iov_base;
+}
 
 /**
  * xdr_inline_decode - Retrieve non-page XDR data to decode
@@ -605,13 +688,9 @@ EXPORT_SYMBOL_GPL(xdr_inline_peek);
  */
 __be32 * xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes)
 {
-	__be32 *p = xdr->p;
-	__be32 *q = p + XDR_QUADLEN(nbytes);
-
-	if (unlikely(q > xdr->end || q < p))
-		return NULL;
-	xdr->p = q;
-	return p;
+	if (xdr->page_ptr == NULL)
+		return __xdr_inline_decode(xdr, nbytes);
+	return xdr_page_inline_decode(xdr, nbytes);
 }
 EXPORT_SYMBOL_GPL(xdr_inline_decode);
 
@@ -671,16 +750,12 @@ EXPORT_SYMBOL_GPL(xdr_read_pages);
  */
 void xdr_enter_page(struct xdr_stream *xdr, unsigned int len)
 {
-	char * kaddr = page_address(xdr->buf->pages[0]);
 	xdr_read_pages(xdr, len);
 	/*
 	 * Position current pointer at beginning of tail, and
 	 * set remaining message length.
 	 */
-	if (len > PAGE_CACHE_SIZE - xdr->buf->page_base)
-		len = PAGE_CACHE_SIZE - xdr->buf->page_base;
-	xdr->p = (__be32 *)(kaddr + xdr->buf->page_base);
-	xdr->end = (__be32 *)((char *)xdr->p + len);
+	xdr_set_page_base(xdr, 0, len);
 }
 EXPORT_SYMBOL_GPL(xdr_enter_page);
 
-- 
1.7.3.4



-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org
www.netapp.com

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Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>,
	Linus Torvalds <torvalds@linux-foundation.org>,
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On Sat, 2011-01-08 at 11:49 -0500, Trond Myklebust wrote: 
> On Fri, 2011-01-07 at 13:11 -0600, James Bottomley wrote: 
> > On the other hand, the xdr routines, since they take the pages anyway,
> > could use a scatterlist approach to writing through the kernel mapping
> > instead of using vmap ... we have all the machinery for this in
> > lib/scatterlist.c ... it's not designed for this case, since it's
> > designed to allow arbitrary linear reads and writes on a block
> > scatterlist, but the principle is the same ... it looks like it would be
> > rather a big patch, though ... 
> 
> The following alternative seems to work for me, but has only been
> lightly tested so far. It's a bit large for a stable patch, but not too
> ungainly.
> 
> It modifies xdr_stream, adding the ability to iterate through page data.
> To avoid kmap()/kunmap(), it does require that pages be allocated in
> lowmem, but since the only use case here is when using page arrays as
> temporary buffers, that seems like an acceptable compromise.

...and here is an update which makes the whole process transparent to
the decoder. It basically teaches xdr_inline_decode() how to switch
buffers when it hits the end of the current iovec and/or page.

Cheers
  Trond
----------------------------------------------------------------------------------- 
>From 8b2e60cef5c65eef41ab61286f62dec6bfb1ac27 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Sat, 8 Jan 2011 17:45:38 -0500
Subject: [PATCH] NFS: Don't use vm_map_ram() in readdir

vm_map_ram() is not available on NOMMU platforms, and causes trouble
on incoherrent architectures such as ARM when we access the page data
through both the direct and the virtual mapping.

The alternative is to use the direct mapping to access page data
for the case when we are not crossing a page boundary, but to copy
the data into a linear scratch buffer when we are accessing data
that spans page boundaries.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/dir.c               |   44 ++++++-------
 fs/nfs/nfs2xdr.c           |    6 --
 fs/nfs/nfs3xdr.c           |    6 --
 fs/nfs/nfs4xdr.c           |    6 --
 include/linux/sunrpc/xdr.h |    4 +-
 net/sunrpc/xdr.c           |  155 +++++++++++++++++++++++++++++++++++---------
 6 files changed, 148 insertions(+), 73 deletions(-)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 996dd89..0108cf4 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -33,7 +33,6 @@
 #include <linux/namei.h>
 #include <linux/mount.h>
 #include <linux/sched.h>
-#include <linux/vmalloc.h>
 #include <linux/kmemleak.h>
 
 #include "delegation.h"
@@ -459,25 +458,26 @@ out:
 /* Perform conversion from xdr to cache array */
 static
 int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *entry,
-				void *xdr_page, struct page *page, unsigned int buflen)
+				struct page **xdr_pages, struct page *page, unsigned int buflen)
 {
 	struct xdr_stream stream;
-	struct xdr_buf buf;
-	__be32 *ptr = xdr_page;
+	struct xdr_buf buf = {
+		.pages = xdr_pages,
+		.page_len = buflen,
+		.buflen = buflen,
+		.len = buflen,
+	};
+	struct page *scratch;
 	struct nfs_cache_array *array;
 	unsigned int count = 0;
 	int status;
 
-	buf.head->iov_base = xdr_page;
-	buf.head->iov_len = buflen;
-	buf.tail->iov_len = 0;
-	buf.page_base = 0;
-	buf.page_len = 0;
-	buf.buflen = buf.head->iov_len;
-	buf.len = buf.head->iov_len;
-
-	xdr_init_decode(&stream, &buf, ptr);
+	scratch = alloc_page(GFP_KERNEL);
+	if (scratch == NULL)
+		return -ENOMEM;
 
+	xdr_init_decode(&stream, &buf, NULL);
+	xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
 
 	do {
 		status = xdr_decode(desc, entry, &stream);
@@ -506,6 +506,8 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en
 		} else
 			status = PTR_ERR(array);
 	}
+
+	put_page(scratch);
 	return status;
 }
 
@@ -521,7 +523,6 @@ static
 void nfs_readdir_free_large_page(void *ptr, struct page **pages,
 		unsigned int npages)
 {
-	vm_unmap_ram(ptr, npages);
 	nfs_readdir_free_pagearray(pages, npages);
 }
 
@@ -530,9 +531,8 @@ void nfs_readdir_free_large_page(void *ptr, struct page **pages,
  * to nfs_readdir_free_large_page
  */
 static
-void *nfs_readdir_large_page(struct page **pages, unsigned int npages)
+int nfs_readdir_large_page(struct page **pages, unsigned int npages)
 {
-	void *ptr;
 	unsigned int i;
 
 	for (i = 0; i < npages; i++) {
@@ -541,13 +541,11 @@ void *nfs_readdir_large_page(struct page **pages, unsigned int npages)
 			goto out_freepages;
 		pages[i] = page;
 	}
+	return 0;
 
-	ptr = vm_map_ram(pages, npages, 0, PAGE_KERNEL);
-	if (!IS_ERR_OR_NULL(ptr))
-		return ptr;
 out_freepages:
 	nfs_readdir_free_pagearray(pages, i);
-	return NULL;
+	return -ENOMEM;
 }
 
 static
@@ -577,8 +575,8 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
 	memset(array, 0, sizeof(struct nfs_cache_array));
 	array->eof_index = -1;
 
-	pages_ptr = nfs_readdir_large_page(pages, array_size);
-	if (!pages_ptr)
+	status = nfs_readdir_large_page(pages, array_size);
+	if (status < 0)
 		goto out_release_array;
 	do {
 		unsigned int pglen;
@@ -587,7 +585,7 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
 		if (status < 0)
 			break;
 		pglen = status;
-		status = nfs_readdir_page_filler(desc, &entry, pages_ptr, page, pglen);
+		status = nfs_readdir_page_filler(desc, &entry, pages, page, pglen);
 		if (status < 0) {
 			if (status == -ENOSPC)
 				status = 0;
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index 5914a19..b382a1b 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -487,12 +487,6 @@ nfs_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, struct nfs_se
 
 	entry->d_type = DT_UNKNOWN;
 
-	p = xdr_inline_peek(xdr, 8);
-	if (p != NULL)
-		entry->eof = !p[0] && p[1];
-	else
-		entry->eof = 0;
-
 	return p;
 
 out_overflow:
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index f6cc60f..ba91236 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -647,12 +647,6 @@ nfs3_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, struct nfs_s
 			memset((u8*)(entry->fh), 0, sizeof(*entry->fh));
 	}
 
-	p = xdr_inline_peek(xdr, 8);
-	if (p != NULL)
-		entry->eof = !p[0] && p[1];
-	else
-		entry->eof = 0;
-
 	return p;
 
 out_overflow:
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 9f1826b..0662a98 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -6215,12 +6215,6 @@ __be32 *nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
 	if (verify_attr_len(xdr, p, len) < 0)
 		goto out_overflow;
 
-	p = xdr_inline_peek(xdr, 8);
-	if (p != NULL)
-		entry->eof = !p[0] && p[1];
-	else
-		entry->eof = 0;
-
 	return p;
 
 out_overflow:
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 498ab93..7783c68 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -201,6 +201,8 @@ struct xdr_stream {
 
 	__be32 *end;		/* end of available buffer space */
 	struct kvec *iov;	/* pointer to the current kvec */
+	struct kvec scratch;	/* Scratch buffer */
+	struct page **page_ptr;	/* pointer to the current page */
 };
 
 extern void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p);
@@ -208,7 +210,7 @@ extern __be32 *xdr_reserve_space(struct xdr_stream *xdr, size_t nbytes);
 extern void xdr_write_pages(struct xdr_stream *xdr, struct page **pages,
 		unsigned int base, unsigned int len);
 extern void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p);
-extern __be32 *xdr_inline_peek(struct xdr_stream *xdr, size_t nbytes);
+extern void xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_t buflen);
 extern __be32 *xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes);
 extern void xdr_read_pages(struct xdr_stream *xdr, unsigned int len);
 extern void xdr_enter_page(struct xdr_stream *xdr, unsigned int len);
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index cd9e841..679cd67 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -552,6 +552,74 @@ void xdr_write_pages(struct xdr_stream *xdr, struct page **pages, unsigned int b
 }
 EXPORT_SYMBOL_GPL(xdr_write_pages);
 
+static void xdr_set_iov(struct xdr_stream *xdr, struct kvec *iov,
+		__be32 *p, unsigned int len)
+{
+	if (len > iov->iov_len)
+		len = iov->iov_len;
+	if (p == NULL)
+		p = (__be32*)iov->iov_base;
+	xdr->p = p;
+	xdr->end = (__be32*)(iov->iov_base + len);
+	xdr->iov = iov;
+	xdr->page_ptr = NULL;
+}
+
+static int xdr_set_page_base(struct xdr_stream *xdr,
+		unsigned int base, unsigned int len)
+{
+	unsigned int pgnr;
+	unsigned int maxlen;
+	unsigned int pgoff;
+	unsigned int pgend;
+	void *kaddr;
+
+	maxlen = xdr->buf->page_len;
+	if (base >= maxlen)
+		return -EINVAL;
+	maxlen -= base;
+	if (len > maxlen)
+		len = maxlen;
+
+	base += xdr->buf->page_base;
+
+	pgnr = base >> PAGE_SHIFT;
+	xdr->page_ptr = &xdr->buf->pages[pgnr];
+	kaddr = page_address(*xdr->page_ptr);
+
+	pgoff = base & ~PAGE_MASK;
+	xdr->p = (__be32*)(kaddr + pgoff);
+
+	pgend = pgoff + len;
+	if (pgend > PAGE_SIZE)
+		pgend = PAGE_SIZE;
+	xdr->end = (__be32*)(kaddr + pgend);
+	xdr->iov = NULL;
+	return 0;
+}
+
+static void xdr_set_next_page(struct xdr_stream *xdr)
+{
+	unsigned int newbase;
+
+	newbase = (1 + xdr->page_ptr - xdr->buf->pages) << PAGE_SHIFT;
+	newbase -= xdr->buf->page_base;
+
+	if (xdr_set_page_base(xdr, newbase, PAGE_SIZE) < 0)
+		xdr_set_iov(xdr, xdr->buf->tail, NULL, xdr->buf->len);
+}
+
+static bool xdr_set_next_buffer(struct xdr_stream *xdr)
+{
+	if (xdr->page_ptr != NULL)
+		xdr_set_next_page(xdr);
+	else if (xdr->iov == xdr->buf->head) {
+		if (xdr_set_page_base(xdr, 0, PAGE_SIZE) < 0)
+			xdr_set_iov(xdr, xdr->buf->tail, NULL, xdr->buf->len);
+	}
+	return xdr->p != xdr->end;
+}
+
 /**
  * xdr_init_decode - Initialize an xdr_stream for decoding data.
  * @xdr: pointer to xdr_stream struct
@@ -560,41 +628,67 @@ EXPORT_SYMBOL_GPL(xdr_write_pages);
  */
 void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p)
 {
-	struct kvec *iov = buf->head;
-	unsigned int len = iov->iov_len;
-
-	if (len > buf->len)
-		len = buf->len;
 	xdr->buf = buf;
-	xdr->iov = iov;
-	xdr->p = p;
-	xdr->end = (__be32 *)((char *)iov->iov_base + len);
+	xdr->scratch.iov_base = NULL;
+	xdr->scratch.iov_len = 0;
+	if (buf->head[0].iov_len != 0)
+		xdr_set_iov(xdr, buf->head, p, buf->len);
+	else if (buf->page_len != 0)
+		xdr_set_page_base(xdr, 0, buf->len);
 }
 EXPORT_SYMBOL_GPL(xdr_init_decode);
 
-/**
- * xdr_inline_peek - Allow read-ahead in the XDR data stream
- * @xdr: pointer to xdr_stream struct
- * @nbytes: number of bytes of data to decode
- *
- * Check if the input buffer is long enough to enable us to decode
- * 'nbytes' more bytes of data starting at the current position.
- * If so return the current pointer without updating the current
- * pointer position.
- */
-__be32 * xdr_inline_peek(struct xdr_stream *xdr, size_t nbytes)
+static __be32 * __xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes)
 {
 	__be32 *p = xdr->p;
 	__be32 *q = p + XDR_QUADLEN(nbytes);
 
 	if (unlikely(q > xdr->end || q < p))
 		return NULL;
+	xdr->p = q;
 	return p;
 }
-EXPORT_SYMBOL_GPL(xdr_inline_peek);
 
 /**
- * xdr_inline_decode - Retrieve non-page XDR data to decode
+ * xdr_set_scratch_buffer - Attach a scratch buffer for decoding data.
+ * @xdr: pointer to xdr_stream struct
+ * @buf: pointer to an empty buffer
+ * @buflen: size of 'buf'
+ *
+ * The scratch buffer is used when decoding from an array of pages.
+ * If an xdr_inline_decode() call spans across page boundaries, then
+ * we copy the data into the scratch buffer in order to allow linear
+ * access.
+ */
+void xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_t buflen)
+{
+	xdr->scratch.iov_base = buf;
+	xdr->scratch.iov_len = buflen;
+}
+EXPORT_SYMBOL_GPL(xdr_set_scratch_buffer);
+
+static __be32 *xdr_copy_to_scratch(struct xdr_stream *xdr, size_t nbytes)
+{
+	__be32 *p;
+	void *cpdest = xdr->scratch.iov_base;
+	size_t cplen = (char *)xdr->end - (char *)xdr->p;
+
+	if (nbytes > xdr->scratch.iov_len)
+		return NULL;
+	memcpy(cpdest, xdr->p, cplen);
+	cpdest += cplen;
+	nbytes -= cplen;
+	if (!xdr_set_next_buffer(xdr))
+		return NULL;
+	p = __xdr_inline_decode(xdr, nbytes);
+	if (p == NULL)
+		return NULL;
+	memcpy(cpdest, p, nbytes);
+	return xdr->scratch.iov_base;
+}
+
+/**
+ * xdr_inline_decode - Retrieve XDR data to decode
  * @xdr: pointer to xdr_stream struct
  * @nbytes: number of bytes of data to decode
  *
@@ -605,13 +699,16 @@ EXPORT_SYMBOL_GPL(xdr_inline_peek);
  */
 __be32 * xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes)
 {
-	__be32 *p = xdr->p;
-	__be32 *q = p + XDR_QUADLEN(nbytes);
+	__be32 *p;
 
-	if (unlikely(q > xdr->end || q < p))
+	if (nbytes == 0)
+		return xdr->p;
+	if (xdr->p == xdr->end && !xdr_set_next_buffer(xdr))
 		return NULL;
-	xdr->p = q;
-	return p;
+	p = __xdr_inline_decode(xdr, nbytes);
+	if (p != NULL)
+		return p;
+	return xdr_copy_to_scratch(xdr, nbytes);
 }
 EXPORT_SYMBOL_GPL(xdr_inline_decode);
 
@@ -671,16 +768,12 @@ EXPORT_SYMBOL_GPL(xdr_read_pages);
  */
 void xdr_enter_page(struct xdr_stream *xdr, unsigned int len)
 {
-	char * kaddr = page_address(xdr->buf->pages[0]);
 	xdr_read_pages(xdr, len);
 	/*
 	 * Position current pointer at beginning of tail, and
 	 * set remaining message length.
 	 */
-	if (len > PAGE_CACHE_SIZE - xdr->buf->page_base)
-		len = PAGE_CACHE_SIZE - xdr->buf->page_base;
-	xdr->p = (__be32 *)(kaddr + xdr->buf->page_base);
-	xdr->end = (__be32 *)((char *)xdr->p + len);
+	xdr_set_page_base(xdr, 0, len);
 }
 EXPORT_SYMBOL_GPL(xdr_enter_page);
 
-- 
1.7.3.4



-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust@netapp.com
www.netapp.com


From - Thu Nov 08 21:06:42 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: flush pages through tmpalias space
Date: Sun, 9 Jan 2011 16:27:54 -0500
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I filed a binutils bug report for this problem:
http://sourceware.org/bugzilla/show_bug.cgi?id=12376

However, I now think the problem can't be fixed reliably by a change
to binutils.  See comments #2 and #3 in the bug report.

James, would using different file descriptors for the mmap'd PT_LOAD
segments in an executable result in different pages being used for
"code" and "data" in the overlap region of the executable file, and
thereby avoid the inequivalent aliases?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Wed, 22 Dec 2010, James Bottomley wrote:

> The kernel has an 8M tmpailas space (originally designed for copying
> and clearing pages but now only used for clearing).  The idea is
> to place zeros into the cache above a physical page rather than into
> the physical page and flush the cache, because often the zeros end up
> being replaced quickly anyway.
> 
> We can also use the tmpalias space for flushing a page.  The difference
> here is that we have to do tmpalias processing in the non access data and
> instruction traps.  The principle is the same: as long as we know the physical
> address and have a virtual address congruent to the real one, the flush will
> be effective.
> 
> In order to use the tmpalias space, the icache miss path has to be enhanced to
> check for the alias region to make the fic instruction effective.

Since I began testing this change, I have started seeing problems with the
console input on gsyprf11 and my rp3440.  If I HUP getty, the console works
for awhile and then stops working again.  Suspect the "INEQIVALENT ALIAS"
messages somehow kill the console.  I get a lot of these doing make check
for GCC from the tests that intentionally generate a segv to test exception
support.

I have also had at least one console related HPMC.  Analysis is attached.
I don't fully understand the actual cause of the HPMC (buffer overrun?).
The kernel was built with GCC 4.5.3.  The faulting instruction appears
to have the base and index interchanged, although this shouldn't affect
linux.  I thought this issue was fixed as a fair bit of work on this was
done in the middle-end.

I have to say that gsyprf11 running a SMP kernel built with 4.5.3 is
more stable with your change than it has been for a long time.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--G4iJoqBmSsgzjUCe
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="hpmc-jeb.txt"

Timestamp =   Mon Jan  3 08:35:03 GMT 2011    (20:11:01:03:08:35:03)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
     0xe800035c00e00000 0x000000004033fde8
     0x57000f7300e00000 0x8040004000000000
     0x5600100b00e00000 0x0000000000000194
     0x5600106400e00000 0xfffffff0f0435110


General Registers 0 - 31
00-03  0000000000000000  0000000040530a90  00000000403439ec  0000000040530b40
04-07  0000000040668a80  000000004061bd60  0000000000000000  0000000040530a60
08-11  0000000000000001  0000000040534080  0000000040530988  0000000000200200
12-15  0000000040677280  0000000040534100  00000000405fe0e0  00000000405fe4e0
16-19  00000000405fe8e0  00000000405fece0  0000000000000001  0000000040530988
20-23  0000000000000000  ffffffffffffffff  00000000405d7110  8000000000000000
24-27  0000000102208072  0000000000000001  000000004061bd60  0000000040668a80
28-31  0000000004082000  0000000040530b10  0000000040530b80  0000000000000000

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000b12  0000000000000000  00000000000000c0  000000000000003f
12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
16-19  00006827228e3750  0000000000000000  000000004033fde8  000000000f3c001c
20-23  00000000a607ffd0  0000000014082001  000000ff0804ff0f  0000000000000000
24-27  00000000005bd000  000000003ce22000  fffdffffffdfffef  0000000040000b80
28-31  0000000040000b80  ffffffffffffff7f  0000000040530000  886904b488140042

Space Registers 0 - 7
00-03  00000000002c4800  0000000000000000  0000000000000000  00000000002c4800
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x000000004033fdec
Check Type                   = 0x20000000
Cpu State                    = 0x9e000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x002c4800
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  000f000000000000  0000000000000001  00000000406bd000  0000000040688000
08-11  00000000406bd000  0000000040668a80  0000000000000000  0000000040668a80
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  000000000000000f
24-27  0000000000000000  0000000000000000  0000000000000000  ffffffffc0000000
28-31  000000000000002f  00000000405651cc  0000000000000001  0000000000000001

PIM Revision                 = 0x0000000000000001                
CPU ID                       = 0x0000000000000014
CPU Revision                 = 0x0000000000000031
Cpu Serial Number            = 0x46100b89e43f0503
Check Summary                = 0x8040004000000000
SAL Timestamp                = 0x000000004d218a37
System Firmware Rev.         = 0x00000ba20000121a
PDC Relocation Address       = 0xfffffff0f0c00000
Available Memory             = 0x000000027fe00000
CPU Diagnose Register 2      = 0x3112022000002008
MIB_STAT                     = 0x0040000000200000
MIB_LOG1                     = 0x0000000000555500
MIB_LOG2                     = 0x0000800000000000
MIB_ECC_DATA                 = 0x808800007fffbfd8
ICache Info                  = 0x0000000000000000
DCache Info                  = 0x0000000000000000
Sharedcache Info1            = 0x0000000000000000
Sharedcache Info2            = 0x00000000000000c0
MIB_RSLOG1                   = 0x0000000000000004
MIB_RSLOG2                   = 0x0000010000000000
MIB_RQLOG                    = 0x02921405fffe1510
MIB_REQLOGa                  = 0x8000000000000200
MIB_REQLOGb                  = 0x01000aa400000000
Reserved                     = 0x0000000000000000
Cache Repair Detail          = 0x0000000000000000

PIM Detail Text:

000000004033fdc8 <mem_serial_in>:
    4033fdc8:   08 03 02 41     copy r3,r1
    4033fdcc:   08 1e 02 43     copy sp,r3
    4033fdd0:   73 c1 00 88     std,ma r1,40(sp)
    4033fdd4:   43 5f 00 92     ldb 49(r26),r31
    4033fdd8:   53 5c 00 20     ldd 10(r26),ret0
    4033fddc:   01 7f 18 c0     mtsarcm r31
    4033fde0:   d7 39 00 00     depw,z r25,sar,32,r25
    4033fde4:   db 39 0f e0     extrd,s r25,63,32,r25
==> 4033fde8:   0f 3c 00 1c     ldb ret0(r25),ret0
    4033fdec:   34 7e 00 80     ldo 40(r3),sp
    4033fdf0:   e8 40 d0 00     bve (rp)
    4033fdf4:   53 c3 3f 8d     ldd,mb -40(sp),r3

r25 = 0000000000000001
r31 = 0000000000000000
ret0= 0000000004082000
rp  = 00000000403439ec

drivers/serial/8250.c:

static unsigned int mem_serial_in(struct uart_port *p, int offset)
{
        offset = map_8250_in_reg(p, offset) << p->regshift;
	return readb(p->membase + offset);
}

It appears the base and offset are interchanged in ldb.

0000000040343818 <serial8250_backup_timeout>:
    40343818:   08 03 02 41     copy r3,r1
    4034381c:   0f c2 12 c1     std rp,-10(sp)
    ...
    403439d0:   08 1b 02 44     copy dp,r4
    403439d4:   34 19 00 02     ldi 1,r25
    403439d8:   53 5c 00 30     ldd 18(r26),ret0
    403439dc:   37 dd 3f a1     ldo -30(sp),ret1
    403439e0:   53 82 00 20     ldd 10(ret0),rp
    403439e4:   e8 40 f0 00     bve,l (rp),rp
    403439e8:   53 9b 00 30     ldd 18(ret0),dp
==> 403439ec:   08 04 02 5b     copy r4,dp
    403439f0:   08 1c 02 46     copy ret0,r6


--G4iJoqBmSsgzjUCe--
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From - Thu Nov 08 21:06:42 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: WARNING: Out of order unwind entry!
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I'm trying the newest kernel (2.6.37+git) on 64-bit parisc after a long 
pause. The good news is that PCI resource allocatrion problem with tulip 
(that was biting me at about 2.6.30-31 timeframe) has been fixed.

Generally it seems to run good but I get a couple of warnings in dmesg. 
The first is a bunch of warnings about out of order unwind entries:

[    0.000000] unwind_init: start = 0x4050f000, end = 0x4053cef0, entries = 11759
[    0.000000] WARNING: Out of order unwind entry! 0000000040510720 and 0000000040510730
[    0.000000] WARNING: Out of order unwind entry! 0000000040510730 and 0000000040510740
[    0.000000] WARNING: Out of order unwind entry! 0000000040511330 and 0000000040511340
[    0.000000] WARNING: Out of order unwind entry! 0000000040511340 and 0000000040511350

Is this report any good or should I provide vmlinux or some other debug 
output? Or if it is known anyway then please just ignore my report.

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:06:42 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: IRQ handler type mismatches
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Hello,

I'm tring 2.6.37 and 2.6.37+git on SMP L1000 64-bit. I'm getting IRQ 
handler type mismatch for IRQs 64 and 65 on bootup. 2.6.37 crashed 
aptitude (maybe unrelated), 2.6.37+git as of 2011-01-09 has worked fine 
on two tries.

Full dmesg:
[    0.000000] Linux version 2.6.37-03737-g0c21e3a (mroos@hernes) (gcc version 4.4.5 (GCC) ) #1 SMP Sun Jan 9 18:47:10 EET 2011
[    0.000000] unwind_init: start = 0x4050f000, end = 0x4053cef0, entries = 11759
[    0.000000] WARNING: Out of order unwind entry! 0000000040510720 and 0000000040510730
[    0.000000] WARNING: Out of order unwind entry! 0000000040510730 and 0000000040510740
[    0.000000] WARNING: Out of order unwind entry! 0000000040511330 and 0000000040511340
[    0.000000] WARNING: Out of order unwind entry! 0000000040511340 and 0000000040511350
[    0.000000] FP[0] enabled: Rev 1 Model 16
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00005c90 00000491 00000000 00000002 2353fbcb 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000203
[    0.000000] CPUID vers 17 rev 8 (0x00000228)
[    0.000000] capabilities 0x1
[    0.000000] model 9000/800/L1000-44
[    0.000000] Total Memory: 3072 MB
[    0.000000] On node 0 totalpages: 786432
[    0.000000] free_area_init_node: node 0, pgdat 40554700, node_mem_map 40c25000
[    0.000000]   Normal zone: 10752 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 775680 pages, LIFO batch:31
[    0.000000] PERCPU: Embedded 10 pages/cpu @0000000043650000 s12032 r8192 d20736 u40960
[    0.000000] pcpu-alloc: s12032 r8192 d20736 u40960 alloc=10*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 [0] 4 [0] 5 [0] 6 [0] 7 
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 775680
[    0.000000] Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.37-03737-g0c21e3a
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.000000] Memory: 3083708k/3145728k available (3503k kernel code, 62020k reserved, 1476k data, 172k init)
[    0.000000] virtual kernel memory layout:
[    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
[    0.000000]     memory  : 0x0000000040000000 - 0x0000000100000000   (3072 MB)
[    0.000000]       .init : 0x00000000406d4000 - 0x00000000406ff000   ( 172 kB)
[    0.000000]       .data : 0x000000004046bf10 - 0x00000000405dd200   (1476 kB)
[    0.000000]       .text : 0x0000000040100000 - 0x000000004046bf10   (3503 kB)
[    0.000000] SLUB: Genslabs=11, HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=8
[    0.000000] Hierarchical RCU implementation.
[    0.000000] 	RCU-based detection of stalled CPUs is disabled.
[    0.000000] NR_IRQS:128
[    0.000000] Console: colour dummy device 160x64
[    0.130000] Calibrating delay loop... 878.18 BogoMIPS (lpj=4390912)
[    0.400000] pid_max: default: 32768 minimum: 301
[    0.400000] Mount-cache hash table entries: 256
[    0.430000] Brought up 1 CPUs
[    0.440000] NET: Registered protocol family 16
[    0.440000] Searching for devices...
[    0.910000] Found devices:
[    0.910000] 1. Rhapsody DC- 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5c9, 0x00004 }
[    0.920000] 2. Rhapsody DC- 440 at 0xfffffffffffa6000 [166] { 0, 0x0, 0x5c9, 0x00004 }
[    0.920000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x095, 0x00009 }
[    0.930000] 4. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
[    0.940000] 5. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
[    0.990000] 6. Elroy PCI Bridge at 0xfffffffffed32000 [0/1] { 13, 0x0, 0x782, 0x0000a }
[    1.000000] 7. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
[    1.000000] 8. Elroy PCI Bridge at 0xfffffffffed36000 [0/3] { 13, 0x0, 0x782, 0x0000a }
[    1.010000] 9. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
[    1.020000] 10. Elroy PCI Bridge at 0xfffffffffed3a000 [0/5] { 13, 0x0, 0x782, 0x0000a }
[    1.410000] 11. Elroy PCI Bridge at 0xfffffffffed3c000 [0/6] { 13, 0x0, 0x782, 0x0000a }
[    1.420000] 12. Elroy PCI Bridge at 0xfffffffffed3e000 [0/7] { 13, 0x0, 0x782, 0x0000a }
[    1.430000] Enabling PDC_PAT chassis codes support v0.05
[    1.760000] Releasing cpu 1 now, hpa=fffffffffffa6000
[    1.770000] FP[1] enabled: Rev 1 Model 16
[    1.780000] IRQ handler type mismatch for IRQ 64
[    1.780000] current handler: timer
[    1.790000] Backtrace:
[    1.790000]  [<000000004011ed24>] show_stack+0x14/0x20
[    1.810000]  [<00000000401174a8>] dump_stack+0x18/0x28
[    1.810000]  [<0000000040196cd0>] __setup_irq+0x4d0/0x500
[    1.820000]  [<0000000040196d40>] setup_irq+0x40/0x58
[    1.820000]  [<00000000406d7378>] init_IRQ+0xa8/0x130
[    1.830000]  [<00000000406d87c4>] smp_callin+0x144/0x1a8
[    1.830000]  [<00000000402011e4>] d_rehash+0x4c/0x60
[    1.860000]  [<00000000401f9330>] do_path_lookup+0xa0/0x140
[    1.860000]  [<00000000401fa72c>] do_filp_open+0x17c/0x780
[    1.870000]  [<0000000040142b78>] enqueue_task+0x60/0x88
[    1.870000]  [<000000004011b5f0>] _raw_spin_unlock_irqrestore+0x18/0x30
[    1.880000]  [<000000004014965c>] finish_task_switch+0x4c/0x150
[    1.880000]  [<000000004014b564>] schedule_tail+0x54/0x160
[    1.910000]  [<000000004010347c>] ret_from_kernel_thread+0x24/0x40
[    1.910000] 
[    1.910000] IRQ handler type mismatch for IRQ 65
[    1.920000] current handler: IPI
[    1.920000] Backtrace:
[    1.920000]  [<000000004011ed24>] show_stack+0x14/0x20
[    1.930000]  [<00000000401174a8>] dump_stack+0x18/0x28
[    1.930000]  [<0000000040196cd0>] __setup_irq+0x4d0/0x500
[    1.940000]  [<0000000040196d40>] setup_irq+0x40/0x58
[    1.940000]  [<00000000406d73b4>] init_IRQ+0xe4/0x130
[    1.960000]  [<00000000406d87c4>] smp_callin+0x144/0x1a8
[    1.970000]  [<00000000402011e4>] d_rehash+0x4c/0x60
[    1.970000]  [<00000000401f9330>] do_path_lookup+0xa0/0x140
[    1.980000]  [<00000000401fa72c>] do_filp_open+0x17c/0x780
[    1.980000]  [<0000000040142b78>] enqueue_task+0x60/0x88
[    1.990000]  [<000000004011b5f0>] _raw_spin_unlock_irqrestore+0x18/0x30
[    1.990000]  [<000000004014965c>] finish_task_switch+0x4c/0x150
[    2.030000]  [<000000004014b564>] schedule_tail+0x54/0x160
[    2.030000]  [<000000004010347c>] ret_from_kernel_thread+0x24/0x40
[    2.040000] 
[    2.130000] CPU(s): 2 x PA8500 (PCX-W) at 440.000000 MHz
[    2.130000] Whole cache flush 333647 cycles, flushing 6287360 bytes 1074964 cycles
[    2.130000] Setting cache flush threshold to 100000 (2 CPUs online)
[    2.190000] SBA found Astro 2.1 at 0xfffffffffed00000
[    2.200000] Elroy version TR4.0 (0x5) found at 0xfffffffffed30000
[    2.230000] pci 0000:00:00.0: [1011:0019] type 0 class 0x000200
[    2.230000] pci 0000:00:00.0: reg 10: [io  0x0000-0x007f]
[    2.230000] pci 0000:00:00.0: reg 14: [mem 0x00000000-0x000003ff]
[    2.230000] pci 0000:00:00.0: reg 30: [mem 0x00000000-0x0003ffff pref]
[    2.230000] pci 0000:00:01.0: [1000:000b] type 0 class 0x000100
[    2.230000] pci 0000:00:01.0: reg 10: [io  0x0000-0x00ff]
[    2.230000] pci 0000:00:01.0: reg 14: [mem 0x00000000-0x000003ff 64bit]
[    2.230000] pci 0000:00:01.0: reg 1c: [mem 0x00000000-0x00001fff 64bit]
[    2.230000] pci 0000:00:01.0: supports D1 D2
[    2.230000] pci 0000:00:01.1: [1000:000b] type 0 class 0x000100
[    2.230000] pci 0000:00:01.1: reg 10: [io  0x0000-0x00ff]
[    2.230000] pci 0000:00:01.1: reg 14: [mem 0xf8020000-0xf80203ff 64bit]
[    2.230000] pci 0000:00:01.1: reg 1c: [mem 0xf8040000-0xf8041fff 64bit]
[    2.230000] pci 0000:00:01.1: supports D1 D2
[    2.230000] pci 0000:00:02.0: [1000:000f] type 0 class 0x000100
[    2.230000] pci 0000:00:02.0: reg 10: [io  0x0000-0x00ff]
[    2.230000] pci 0000:00:02.0: reg 14: [mem 0x00000000-0x000000ff]
[    2.230000] pci 0000:00:02.0: reg 18: [mem 0x00000000-0x00000fff]
[    2.230000] pci 0000:00:02.1: [1000:000f] type 0 class 0x000100
[    2.230000] pci 0000:00:02.1: reg 10: [io  0x0000-0x00ff]
[    2.230000] pci 0000:00:02.1: reg 14: [mem 0x00000000-0x000000ff]
[    2.230000] pci 0000:00:02.1: reg 18: [mem 0x00000000-0x00000fff]
[    2.240000] pci 0000:00:04.0: [103c:1048] type 0 class 0x000700
[    2.240000] pci 0000:00:04.0: reg 10: [mem 0xf8000000-0xf8000fff]
[    2.240000] pci 0000:00:04.0: reg 14: [io  0x0000-0x003f]
[    2.240000] pci 0000:00:05.0: [103c:1048] type 0 class 0x000700
[    2.240000] pci 0000:00:05.0: reg 10: [mem 0x00000000-0x00000fff]
[    2.240000] pci 0000:00:05.0: reg 14: [io  0x0000-0x003f]
[    2.240000] pci 0000:00:00.0: BAR 6: assigned [mem 0xfffffffff8080000-0xfffffffff80bffff pref]
[    2.300000] pci 0000:00:01.0: BAR 3: assigned [mem 0xfffffffff8002000-0xfffffffff8003fff 64bit]
[    2.440000] pci 0000:00:01.0: BAR 3: set to [mem 0xfffffffff8002000-0xfffffffff8003fff 64bit] (PCI address [0xf8002000-0xf8003fff])
[    2.460000] pci 0000:00:02.0: BAR 2: assigned [mem 0xfffffffff8001000-0xfffffffff8001fff]
[    2.460000] pci 0000:00:02.0: BAR 2: set to [mem 0xfffffffff8001000-0xfffffffff8001fff] (PCI address [0xf8001000-0xf8001fff])
[    2.730000] pci 0000:00:02.1: BAR 2: assigned [mem 0xfffffffff8004000-0xfffffffff8004fff]
[    2.860000] pci 0000:00:02.1: BAR 2: set to [mem 0xfffffffff8004000-0xfffffffff8004fff] (PCI address [0xf8004000-0xf8004fff])
[    3.000000] pci 0000:00:05.0: BAR 0: assigned [mem 0xfffffffff8005000-0xfffffffff8005fff]
[    3.140000] pci 0000:00:05.0: BAR 0: set to [mem 0xfffffffff8005000-0xfffffffff8005fff] (PCI address [0xf8005000-0xf8005fff])
[    3.290000] pci 0000:00:00.0: BAR 1: assigned [mem 0xfffffffff8006000-0xfffffffff80063ff]
[    3.420000] pci 0000:00:00.0: BAR 1: set to [mem 0xfffffffff8006000-0xfffffffff80063ff] (PCI address [0xf8006000-0xf80063ff])
[    3.440000] pci 0000:00:01.0: BAR 1: assigned [mem 0xfffffffff8007000-0xfffffffff80073ff 64bit]
[    3.450000] pci 0000:00:01.0: BAR 1: set to [mem 0xfffffffff8007000-0xfffffffff80073ff 64bit] (PCI address [0xf8007000-0xf80073ff])
[    3.710000] pci 0000:00:01.0: BAR 0: assigned [io  0x0100-0x01ff]
[    3.720000] pci 0000:00:01.0: BAR 0: set to [io  0x0100-0x01ff] (PCI address [0x100-0x1ff])
[    3.990000] pci 0000:00:01.1: BAR 0: assigned [io  0x0200-0x02ff]
[    4.000000] pci 0000:00:01.1: BAR 0: set to [io  0x0200-0x02ff] (PCI address [0x200-0x2ff])
[    4.130000] pci 0000:00:02.0: BAR 0: assigned [io  0x0300-0x03ff]
[    4.140000] pci 0000:00:02.0: BAR 0: set to [io  0x0300-0x03ff] (PCI address [0x300-0x3ff])
[    4.270000] pci 0000:00:02.0: BAR 1: assigned [mem 0xfffffffff8008000-0xfffffffff80080ff]
[    4.280000] pci 0000:00:02.0: BAR 1: set to [mem 0xfffffffff8008000-0xfffffffff80080ff] (PCI address [0xf8008000-0xf80080ff])
[    4.560000] pci 0000:00:02.1: BAR 0: assigned [io  0x0400-0x04ff]
[    4.560000] pci 0000:00:02.1: BAR 0: set to [io  0x0400-0x04ff] (PCI address [0x400-0x4ff])
[    4.840000] pci 0000:00:02.1: BAR 1: assigned [mem 0xfffffffff8009000-0xfffffffff80090ff]
[    4.850000] pci 0000:00:02.1: BAR 1: set to [mem 0xfffffffff8009000-0xfffffffff80090ff] (PCI address [0xf8009000-0xf80090ff])
[    4.980000] pci 0000:00:00.0: BAR 0: assigned [io  0x0080-0x00ff]
[    4.980000] pci 0000:00:00.0: BAR 0: set to [io  0x0080-0x00ff] (PCI address [0x80-0xff])
[    5.260000] pci 0000:00:04.0: BAR 1: assigned [io  0x0040-0x007f]
[    5.260000] pci 0000:00:04.0: BAR 1: set to [io  0x0040-0x007f] (PCI address [0x40-0x7f])
[    5.270000] pci 0000:00:05.0: BAR 1: assigned [io  0x0500-0x053f]
[    5.540000] pci 0000:00:05.0: BAR 1: set to [io  0x0500-0x053f] (PCI address [0x500-0x53f])
[    5.560000] Elroy version TR4.0 (0x5) found at 0xfffffffffed32000
[    5.700000] Elroy version TR4.0 (0x5) found at 0xfffffffffed34000
[    5.700000] NOTICE: Enabling PCI Arbitration
[    5.730000] Elroy version TR4.0 (0x5) found at 0xfffffffffed36000
[    5.840000] pci 0000:18:00.0: [1011:0019] type 0 class 0x000200
[    5.840000] pci 0000:18:00.0: reg 10: [io  0xdc139c00-0xdc139c7f]
[    5.840000] pci 0000:18:00.0: reg 14: [mem 0xd053f800-0xd053fbff]
[    5.840000] pci 0000:18:00.0: reg 30: [mem 0xcefc0000-0xceffffff pref]
[    5.840000] pci 0000:18:00.0: no compatible bridge window for [io  0xdc139c00-0xdc139c7f]
[    5.960000] pci 0000:18:00.0: no compatible bridge window for [mem 0xffffffffd053f800-0xffffffffd053fbff]
[    5.970000] pci 0000:18:00.0: no compatible bridge window for [mem 0xffffffffcefc0000-0xffffffffceffffff pref]
[    6.100000] pci 0000:18:00.0: BAR 6: assigned [mem 0xfffffffff9800000-0xfffffffff983ffff pref]
[    6.240000] pci 0000:18:00.0: BAR 1: assigned [mem 0xfffffffff9840000-0xfffffffff98403ff]
[    6.380000] pci 0000:18:00.0: BAR 1: set to [mem 0xfffffffff9840000-0xfffffffff98403ff] (PCI address [0xf9840000-0xf98403ff])
[    6.530000] pci 0000:18:00.0: BAR 0: assigned [io  0x30000-0x3007f]
[    6.530000] pci 0000:18:00.0: BAR 0: set to [io  0x30000-0x3007f] (PCI address [0x0-0x7f])
[    6.540000] Elroy version TR4.0 (0x5) found at 0xfffffffffed38000
[    6.810000] NOTICE: Enabling PCI Arbitration
[    6.830000] Elroy version TR4.0 (0x5) found at 0xfffffffffed3a000
[    6.840000] NOTICE: Enabling PCI Arbitration
[    6.860000] Elroy version TR4.0 (0x5) found at 0xfffffffffed3c000
[    6.940000] NOTICE: Enabling PCI Arbitration
[    6.970000] Elroy version TR4.0 (0x5) found at 0xfffffffffed3e000
[    6.970000] NOTICE: Enabling PCI Arbitration
[    7.000000] powersw: Soft power switch support not available.
[    7.090000] bio: create slab <bio-0> at 0
[    7.220000] vgaarb: loaded
[    7.230000] SCSI subsystem initialized
[    7.260000] NET: Registered protocol family 2
[    7.270000] IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
[    7.370000] TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
[    7.530000] TCP bind hash table entries: 65536 (order: 9, 2097152 bytes)
[    7.540000] TCP: Hash tables configured (established 262144 bind 65536)
[    7.650000] TCP reno registered
[    7.660000] UDP hash table entries: 2048 (order: 5, 196608 bytes)
[    7.790000] UDP-Lite hash table entries: 2048 (order: 5, 196608 bytes)
[    7.800000] NET: Registered protocol family 1
[    7.930000] PCI: CLS 64 bytes
[    7.930000] Chassis warnings not supported.
[    7.940000] Performance monitoring counters enabled for Rhapsody DC- 440
[    8.100000] VFS: Disk quotas dquot_6.5.2
[    8.100000] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    8.210000] msgmni has been set to 6022
[    8.220000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[    8.230000] io scheduler noop registered
[    8.350000] io scheduler cfq registered (default)
[    8.370000] PDC Stable Storage facility v0.30
[    9.180000] STI GSC/PCI core graphics driver Version 0.9a
[    9.180000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    9.200000] serial 0000:00:04.0: enabling device (0146 -> 0147)
[    9.230000] 0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 70) is a 16550A
[    9.240000] console [ttyS0] enabled, bootconsole disabled
[    9.280000] 0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 70) is a 16550A
[    9.320000] 0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 70) is a 16550A
[    9.330000] serial 0000:00:05.0: enabling device (0000 -> 0003)
[    9.340000] serial 0000:00:05.0: enabling SERR and PARITY (0003 -> 0143)
[    9.380000] 0000:00:05.0: ttyS3 at MMIO 0xfffffffff8005000 (irq = 71) is a 16550A
[    9.420000] Couldn't register serial port 0000:00:05.0: -28
[    9.560000] sym53c8xx 0000:00:01.0: enabling device (0000 -> 0003)
[    9.570000] sym53c8xx 0000:00:01.0: enabling SERR and PARITY (0003 -> 0143)
[    9.770000] sym0: <896> rev 0x5 at pci 0000:00:01.0 irq 67
[    9.780000] sym0: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
[    9.850000] sym0: SCSI BUS has been reset.
[    9.860000] scsi0 : sym-2.2.3
[    9.860000] sym53c8xx 0000:00:01.1: enabling device (0146 -> 0147)
[   10.050000] sym1: <896> rev 0x5 at pci 0000:00:01.1 irq 68
[   10.060000] sym1: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
[   10.130000] sym1: SCSI BUS has been reset.
[   10.130000] scsi1 : sym-2.2.3
[   10.130000] sym1: SCSI BUS mode change from SE to SE.
[   10.130000] sym1: SCSI BUS has been reset.
[   10.280000] sym53c8xx 0000:00:02.0: enabling device (0000 -> 0003)
[   10.410000] sym53c8xx 0000:00:02.0: enabling SERR and PARITY (0003 -> 0143)
[   10.620000] sym2: <875> rev 0x14 at pci 0000:00:02.0 irq 68
[   10.710000] sym2: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
[   10.720000] sym2: SCSI BUS has been reset.
[   10.720000] scsi2 : sym-2.2.3
[   10.730000] sym53c8xx 0000:00:02.1: enabling device (0000 -> 0003)
[   10.830000] sym53c8xx 0000:00:02.1: enabling SERR and PARITY (0003 -> 0143)
[   10.910000] sym3: <875> rev 0x14 at pci 0000:00:02.1 irq 69
[   11.060000] sym3: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
[   11.120000] sym3: SCSI BUS has been reset.
[   11.120000] scsi3 : sym-2.2.3
[   11.130000] mousedev: PS/2 mouse device common for all mice
[   11.250000] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[   11.270000] TCP cubic registered
[   11.390000] NET: Registered protocol family 17
[   11.400000] Registering the dns_resolver key type
[   11.530000] scsi: waiting for bus probes to complete ...
[   13.190000] scsi 1:0:0:0: Direct-Access     SEAGATE  ST136403LC       HP01 PQ: 0 ANSI: 2
[   13.200000] scsi target1:0:0: tagged command queuing enabled, command queue depth 16.
[   13.220000] scsi target1:0:0: Beginning Domain Validation
[   13.240000] scsi target1:0:0: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
[   13.250000] scsi target1:0:0: Domain Validation skipping write tests
[   13.260000] scsi target1:0:0: Ending Domain Validation
[   13.760000] scsi 2:0:0:0: Direct-Access     SEAGATE  ST136403LC       HP01 PQ: 0 ANSI: 2
[   13.760000] scsi target2:0:0: tagged command queuing enabled, command queue depth 16.
[   13.770000] scsi target2:0:0: Beginning Domain Validation
[   13.810000] scsi target2:0:0: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
[   13.820000] scsi target2:0:0: Domain Validation skipping write tests
[   13.820000] scsi target2:0:0: Ending Domain Validation
[   14.770000] scsi 3:0:2:0: CD-ROM            HP       DVD-ROM 304      2.00 PQ: 0 ANSI: 2
[   14.780000] scsi target3:0:2: Beginning Domain Validation
[   14.800000] scsi target3:0:2: FAST-20 SCSI 20.0 MB/s ST (50 ns, offset 16)
[   14.810000] scsi target3:0:2: Domain Validation skipping write tests
[   14.820000] scsi target3:0:2: Ending Domain Validation
[   17.480000] sd 1:0:0:0: [sda] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
[   17.490000] sd 1:0:0:0: [sda] Write Protect is off
[   17.510000] sd 1:0:0:0: [sda] Mode Sense: 9f 00 10 08
[   17.510000] sd 1:0:0:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   17.550000]  sda: sda1 sda2 sda3 < sda5 sda6 >
[   17.570000] sd 1:0:0:0: [sda] Attached SCSI disk
[   17.980000] sd 2:0:0:0: [sdb] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
[   17.990000] sd 2:0:0:0: [sdb] Write Protect is off
[   18.010000] sd 2:0:0:0: [sdb] Mode Sense: 9f 00 10 08
[   18.010000] sd 2:0:0:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   18.060000]  sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 >
[   18.070000] sd 2:0:0:0: [sdb] Attached SCSI disk
[   18.380000] rtc-generic rtc-generic: setting system clock to 2011-01-10 07:50:23 UTC (1294645823)
[   18.470000] EXT4-fs (sda5): mounted filesystem with ordered data mode. Opts: (null)
[   18.480000] VFS: Mounted root (ext4 filesystem) readonly on device 8:5.
[   18.500000] Freeing unused kernel memory: 172k freed
[   18.500000] Write protecting the kernel read-only data: 652k
[   21.030000] Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
[   21.040000] tulip 0000:00:00.0: enabling device (0140 -> 0143)
[   21.060000] tulip0: no phy info, aborting mtable build
[   21.070000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1
[   21.090000] net eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff8006000, 00:10:83:fe:9c:b0, IRQ 66
[   21.100000] tulip 0000:18:00.0: enabling device (0000 -> 0003)
[   21.110000] tulip 0000:18:00.0: enabling SERR and PARITY (0003 -> 0143)
[   21.140000] tulip1: EEPROM default media type Autosense
[   21.150000] tulip1: Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block
[   21.170000] tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101
[   21.180000] tulip1:  Advertising 01e1 on PHY 1, previously advertising 0101
[   21.190000] net eth1: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff9840000, 00:10:83:fb:99:c0, IRQ 72
[   21.650000] sr0: scsi3-mmc drive: 0x/0x cd/rw xa/form2 cdda tray
[   21.650000] cdrom: Uniform CD-ROM driver Revision: 3.20
[   21.670000] sr 3:0:2:0: Attached scsi CD-ROM sr0
[   21.800000] sd 1:0:0:0: Attached scsi generic sg0 type 0
[   21.810000] sd 2:0:0:0: Attached scsi generic sg1 type 0
[   21.820000] sr 3:0:2:0: Attached scsi generic sg2 type 5
[   23.760000] Adding 1350652k swap on /dev/sda6.  Priority:-1 extents:1 across:1350652k 
[   23.820000] EXT4-fs (sda5): re-mounted. Opts: (null)
[   24.360000] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro
[   24.810000] loop: module loaded
[   31.060000] net eth0: Setting full-duplex based on MII#1 link partner capability of 45e1
[   31.360000] NET: Registered protocol family 10
[   31.370000] lo: Disabled Privacy Extensions
[   31.660000] sshd (924): /proc/924/oom_adj is deprecated, please use /proc/924/oom_score_adj instead.

-- 
Meelis Roos (mroos@linux.ee)
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Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
Date: Mon, 10 Jan 2011 11:50:19 +0100
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Cc: James Bottomley <James.Bottomley-d9PhHud1JfjCXq6kfMZ53/egYHeGw8Jk@public.gmane.org>,
	Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
	Linus Torvalds <torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
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	linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.nfs/38112>

Hi Trond,

On Sat, Jan 08, 2011 at 06:15:51PM -0500, Trond Myklebust wrote:
> ---------------------------------------------------------------------=
--------------=20
It would be great if you could add a "8<" in the line above next time.
Then git-am -c does the right thing (at least I think so).

> From 8b2e60cef5c65eef41ab61286f62dec6bfb1ac27 Mon Sep 17 00:00:00 200=
1
> From: Trond Myklebust <Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
> Date: Sat, 8 Jan 2011 17:45:38 -0500
> Subject: [PATCH] NFS: Don't use vm_map_ram() in readdir
>=20
> vm_map_ram() is not available on NOMMU platforms, and causes trouble
> on incoherrent architectures such as ARM when we access the page data
> through both the direct and the virtual mapping.
>=20
> The alternative is to use the direct mapping to access page data
> for the case when we are not crossing a page boundary, but to copy
> the data into a linear scratch buffer when we are accessing data
> that spans page boundaries.
>=20
> Signed-off-by: Trond Myklebust <Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
Tested-by: Uwe Kleine-K=F6nig <u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>

on tx28.

Thanks
Uwe

> ---
>  fs/nfs/dir.c               |   44 ++++++-------
>  fs/nfs/nfs2xdr.c           |    6 --
>  fs/nfs/nfs3xdr.c           |    6 --
>  fs/nfs/nfs4xdr.c           |    6 --
>  include/linux/sunrpc/xdr.h |    4 +-
>  net/sunrpc/xdr.c           |  155 ++++++++++++++++++++++++++++++++++=
+---------
>  6 files changed, 148 insertions(+), 73 deletions(-)
>=20
> diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
> index 996dd89..0108cf4 100644
> --- a/fs/nfs/dir.c
> +++ b/fs/nfs/dir.c
> @@ -33,7 +33,6 @@
>  #include <linux/namei.h>
>  #include <linux/mount.h>
>  #include <linux/sched.h>
> -#include <linux/vmalloc.h>
>  #include <linux/kmemleak.h>
> =20
>  #include "delegation.h"
> @@ -459,25 +458,26 @@ out:
>  /* Perform conversion from xdr to cache array */
>  static
>  int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct n=
fs_entry *entry,
> -				void *xdr_page, struct page *page, unsigned int buflen)
> +				struct page **xdr_pages, struct page *page, unsigned int buflen)
>  {
>  	struct xdr_stream stream;
> -	struct xdr_buf buf;
> -	__be32 *ptr =3D xdr_page;
> +	struct xdr_buf buf =3D {
> +		.pages =3D xdr_pages,
> +		.page_len =3D buflen,
> +		.buflen =3D buflen,
> +		.len =3D buflen,
> +	};
> +	struct page *scratch;
>  	struct nfs_cache_array *array;
>  	unsigned int count =3D 0;
>  	int status;
> =20
> -	buf.head->iov_base =3D xdr_page;
> -	buf.head->iov_len =3D buflen;
> -	buf.tail->iov_len =3D 0;
> -	buf.page_base =3D 0;
> -	buf.page_len =3D 0;
> -	buf.buflen =3D buf.head->iov_len;
> -	buf.len =3D buf.head->iov_len;
> -
> -	xdr_init_decode(&stream, &buf, ptr);
> +	scratch =3D alloc_page(GFP_KERNEL);
> +	if (scratch =3D=3D NULL)
> +		return -ENOMEM;
> =20
> +	xdr_init_decode(&stream, &buf, NULL);
> +	xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
> =20
>  	do {
>  		status =3D xdr_decode(desc, entry, &stream);
> @@ -506,6 +506,8 @@ int nfs_readdir_page_filler(nfs_readdir_descripto=
r_t *desc, struct nfs_entry *en
>  		} else
>  			status =3D PTR_ERR(array);
>  	}
> +
> +	put_page(scratch);
>  	return status;
>  }
> =20
> @@ -521,7 +523,6 @@ static
>  void nfs_readdir_free_large_page(void *ptr, struct page **pages,
>  		unsigned int npages)
>  {
> -	vm_unmap_ram(ptr, npages);
>  	nfs_readdir_free_pagearray(pages, npages);
>  }
> =20
> @@ -530,9 +531,8 @@ void nfs_readdir_free_large_page(void *ptr, struc=
t page **pages,
>   * to nfs_readdir_free_large_page
>   */
>  static
> -void *nfs_readdir_large_page(struct page **pages, unsigned int npage=
s)
> +int nfs_readdir_large_page(struct page **pages, unsigned int npages)
>  {
> -	void *ptr;
>  	unsigned int i;
> =20
>  	for (i =3D 0; i < npages; i++) {
> @@ -541,13 +541,11 @@ void *nfs_readdir_large_page(struct page **page=
s, unsigned int npages)
>  			goto out_freepages;
>  		pages[i] =3D page;
>  	}
> +	return 0;
> =20
> -	ptr =3D vm_map_ram(pages, npages, 0, PAGE_KERNEL);
> -	if (!IS_ERR_OR_NULL(ptr))
> -		return ptr;
>  out_freepages:
>  	nfs_readdir_free_pagearray(pages, i);
> -	return NULL;
> +	return -ENOMEM;
>  }
> =20
>  static
> @@ -577,8 +575,8 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descript=
or_t *desc, struct page *page,
>  	memset(array, 0, sizeof(struct nfs_cache_array));
>  	array->eof_index =3D -1;
> =20
> -	pages_ptr =3D nfs_readdir_large_page(pages, array_size);
> -	if (!pages_ptr)
> +	status =3D nfs_readdir_large_page(pages, array_size);
> +	if (status < 0)
>  		goto out_release_array;
>  	do {
>  		unsigned int pglen;
> @@ -587,7 +585,7 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descript=
or_t *desc, struct page *page,
>  		if (status < 0)
>  			break;
>  		pglen =3D status;
> -		status =3D nfs_readdir_page_filler(desc, &entry, pages_ptr, page, =
pglen);
> +		status =3D nfs_readdir_page_filler(desc, &entry, pages, page, pgle=
n);
>  		if (status < 0) {
>  			if (status =3D=3D -ENOSPC)
>  				status =3D 0;
> diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
> index 5914a19..b382a1b 100644
> --- a/fs/nfs/nfs2xdr.c
> +++ b/fs/nfs/nfs2xdr.c
> @@ -487,12 +487,6 @@ nfs_decode_dirent(struct xdr_stream *xdr, struct=
 nfs_entry *entry, struct nfs_se
> =20
>  	entry->d_type =3D DT_UNKNOWN;
> =20
> -	p =3D xdr_inline_peek(xdr, 8);
> -	if (p !=3D NULL)
> -		entry->eof =3D !p[0] && p[1];
> -	else
> -		entry->eof =3D 0;
> -
>  	return p;
> =20
>  out_overflow:
> diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
> index f6cc60f..ba91236 100644
> --- a/fs/nfs/nfs3xdr.c
> +++ b/fs/nfs/nfs3xdr.c
> @@ -647,12 +647,6 @@ nfs3_decode_dirent(struct xdr_stream *xdr, struc=
t nfs_entry *entry, struct nfs_s
>  			memset((u8*)(entry->fh), 0, sizeof(*entry->fh));
>  	}
> =20
> -	p =3D xdr_inline_peek(xdr, 8);
> -	if (p !=3D NULL)
> -		entry->eof =3D !p[0] && p[1];
> -	else
> -		entry->eof =3D 0;
> -
>  	return p;
> =20
>  out_overflow:
> diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
> index 9f1826b..0662a98 100644
> --- a/fs/nfs/nfs4xdr.c
> +++ b/fs/nfs/nfs4xdr.c
> @@ -6215,12 +6215,6 @@ __be32 *nfs4_decode_dirent(struct xdr_stream *=
xdr, struct nfs_entry *entry,
>  	if (verify_attr_len(xdr, p, len) < 0)
>  		goto out_overflow;
> =20
> -	p =3D xdr_inline_peek(xdr, 8);
> -	if (p !=3D NULL)
> -		entry->eof =3D !p[0] && p[1];
> -	else
> -		entry->eof =3D 0;
> -
>  	return p;
> =20
>  out_overflow:
> diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
> index 498ab93..7783c68 100644
> --- a/include/linux/sunrpc/xdr.h
> +++ b/include/linux/sunrpc/xdr.h
> @@ -201,6 +201,8 @@ struct xdr_stream {
> =20
>  	__be32 *end;		/* end of available buffer space */
>  	struct kvec *iov;	/* pointer to the current kvec */
> +	struct kvec scratch;	/* Scratch buffer */
> +	struct page **page_ptr;	/* pointer to the current page */
>  };
> =20
>  extern void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *=
buf, __be32 *p);
> @@ -208,7 +210,7 @@ extern __be32 *xdr_reserve_space(struct xdr_strea=
m *xdr, size_t nbytes);
>  extern void xdr_write_pages(struct xdr_stream *xdr, struct page **pa=
ges,
>  		unsigned int base, unsigned int len);
>  extern void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *=
buf, __be32 *p);
> -extern __be32 *xdr_inline_peek(struct xdr_stream *xdr, size_t nbytes=
);
> +extern void xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf=
, size_t buflen);
>  extern __be32 *xdr_inline_decode(struct xdr_stream *xdr, size_t nbyt=
es);
>  extern void xdr_read_pages(struct xdr_stream *xdr, unsigned int len)=
;
>  extern void xdr_enter_page(struct xdr_stream *xdr, unsigned int len)=
;
> diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
> index cd9e841..679cd67 100644
> --- a/net/sunrpc/xdr.c
> +++ b/net/sunrpc/xdr.c
> @@ -552,6 +552,74 @@ void xdr_write_pages(struct xdr_stream *xdr, str=
uct page **pages, unsigned int b
>  }
>  EXPORT_SYMBOL_GPL(xdr_write_pages);
> =20
> +static void xdr_set_iov(struct xdr_stream *xdr, struct kvec *iov,
> +		__be32 *p, unsigned int len)
> +{
> +	if (len > iov->iov_len)
> +		len =3D iov->iov_len;
> +	if (p =3D=3D NULL)
> +		p =3D (__be32*)iov->iov_base;
> +	xdr->p =3D p;
> +	xdr->end =3D (__be32*)(iov->iov_base + len);
> +	xdr->iov =3D iov;
> +	xdr->page_ptr =3D NULL;
> +}
> +
> +static int xdr_set_page_base(struct xdr_stream *xdr,
> +		unsigned int base, unsigned int len)
> +{
> +	unsigned int pgnr;
> +	unsigned int maxlen;
> +	unsigned int pgoff;
> +	unsigned int pgend;
> +	void *kaddr;
> +
> +	maxlen =3D xdr->buf->page_len;
> +	if (base >=3D maxlen)
> +		return -EINVAL;
> +	maxlen -=3D base;
> +	if (len > maxlen)
> +		len =3D maxlen;
> +
> +	base +=3D xdr->buf->page_base;
> +
> +	pgnr =3D base >> PAGE_SHIFT;
> +	xdr->page_ptr =3D &xdr->buf->pages[pgnr];
> +	kaddr =3D page_address(*xdr->page_ptr);
> +
> +	pgoff =3D base & ~PAGE_MASK;
> +	xdr->p =3D (__be32*)(kaddr + pgoff);
> +
> +	pgend =3D pgoff + len;
> +	if (pgend > PAGE_SIZE)
> +		pgend =3D PAGE_SIZE;
> +	xdr->end =3D (__be32*)(kaddr + pgend);
> +	xdr->iov =3D NULL;
> +	return 0;
> +}
> +
> +static void xdr_set_next_page(struct xdr_stream *xdr)
> +{
> +	unsigned int newbase;
> +
> +	newbase =3D (1 + xdr->page_ptr - xdr->buf->pages) << PAGE_SHIFT;
> +	newbase -=3D xdr->buf->page_base;
> +
> +	if (xdr_set_page_base(xdr, newbase, PAGE_SIZE) < 0)
> +		xdr_set_iov(xdr, xdr->buf->tail, NULL, xdr->buf->len);
> +}
> +
> +static bool xdr_set_next_buffer(struct xdr_stream *xdr)
> +{
> +	if (xdr->page_ptr !=3D NULL)
> +		xdr_set_next_page(xdr);
> +	else if (xdr->iov =3D=3D xdr->buf->head) {
> +		if (xdr_set_page_base(xdr, 0, PAGE_SIZE) < 0)
> +			xdr_set_iov(xdr, xdr->buf->tail, NULL, xdr->buf->len);
> +	}
> +	return xdr->p !=3D xdr->end;
> +}
> +
>  /**
>   * xdr_init_decode - Initialize an xdr_stream for decoding data.
>   * @xdr: pointer to xdr_stream struct
> @@ -560,41 +628,67 @@ EXPORT_SYMBOL_GPL(xdr_write_pages);
>   */
>  void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __=
be32 *p)
>  {
> -	struct kvec *iov =3D buf->head;
> -	unsigned int len =3D iov->iov_len;
> -
> -	if (len > buf->len)
> -		len =3D buf->len;
>  	xdr->buf =3D buf;
> -	xdr->iov =3D iov;
> -	xdr->p =3D p;
> -	xdr->end =3D (__be32 *)((char *)iov->iov_base + len);
> +	xdr->scratch.iov_base =3D NULL;
> +	xdr->scratch.iov_len =3D 0;
> +	if (buf->head[0].iov_len !=3D 0)
> +		xdr_set_iov(xdr, buf->head, p, buf->len);
> +	else if (buf->page_len !=3D 0)
> +		xdr_set_page_base(xdr, 0, buf->len);
>  }
>  EXPORT_SYMBOL_GPL(xdr_init_decode);
> =20
> -/**
> - * xdr_inline_peek - Allow read-ahead in the XDR data stream
> - * @xdr: pointer to xdr_stream struct
> - * @nbytes: number of bytes of data to decode
> - *
> - * Check if the input buffer is long enough to enable us to decode
> - * 'nbytes' more bytes of data starting at the current position.
> - * If so return the current pointer without updating the current
> - * pointer position.
> - */
> -__be32 * xdr_inline_peek(struct xdr_stream *xdr, size_t nbytes)
> +static __be32 * __xdr_inline_decode(struct xdr_stream *xdr, size_t n=
bytes)
>  {
>  	__be32 *p =3D xdr->p;
>  	__be32 *q =3D p + XDR_QUADLEN(nbytes);
> =20
>  	if (unlikely(q > xdr->end || q < p))
>  		return NULL;
> +	xdr->p =3D q;
>  	return p;
>  }
> -EXPORT_SYMBOL_GPL(xdr_inline_peek);
> =20
>  /**
> - * xdr_inline_decode - Retrieve non-page XDR data to decode
> + * xdr_set_scratch_buffer - Attach a scratch buffer for decoding dat=
a.
> + * @xdr: pointer to xdr_stream struct
> + * @buf: pointer to an empty buffer
> + * @buflen: size of 'buf'
> + *
> + * The scratch buffer is used when decoding from an array of pages.
> + * If an xdr_inline_decode() call spans across page boundaries, then
> + * we copy the data into the scratch buffer in order to allow linear
> + * access.
> + */
> +void xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_=
t buflen)
> +{
> +	xdr->scratch.iov_base =3D buf;
> +	xdr->scratch.iov_len =3D buflen;
> +}
> +EXPORT_SYMBOL_GPL(xdr_set_scratch_buffer);
> +
> +static __be32 *xdr_copy_to_scratch(struct xdr_stream *xdr, size_t nb=
ytes)
> +{
> +	__be32 *p;
> +	void *cpdest =3D xdr->scratch.iov_base;
> +	size_t cplen =3D (char *)xdr->end - (char *)xdr->p;
> +
> +	if (nbytes > xdr->scratch.iov_len)
> +		return NULL;
> +	memcpy(cpdest, xdr->p, cplen);
> +	cpdest +=3D cplen;
> +	nbytes -=3D cplen;
> +	if (!xdr_set_next_buffer(xdr))
> +		return NULL;
> +	p =3D __xdr_inline_decode(xdr, nbytes);
> +	if (p =3D=3D NULL)
> +		return NULL;
> +	memcpy(cpdest, p, nbytes);
> +	return xdr->scratch.iov_base;
> +}
> +
> +/**
> + * xdr_inline_decode - Retrieve XDR data to decode
>   * @xdr: pointer to xdr_stream struct
>   * @nbytes: number of bytes of data to decode
>   *
> @@ -605,13 +699,16 @@ EXPORT_SYMBOL_GPL(xdr_inline_peek);
>   */
>  __be32 * xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes)
>  {
> -	__be32 *p =3D xdr->p;
> -	__be32 *q =3D p + XDR_QUADLEN(nbytes);
> +	__be32 *p;
> =20
> -	if (unlikely(q > xdr->end || q < p))
> +	if (nbytes =3D=3D 0)
> +		return xdr->p;
> +	if (xdr->p =3D=3D xdr->end && !xdr_set_next_buffer(xdr))
>  		return NULL;
> -	xdr->p =3D q;
> -	return p;
> +	p =3D __xdr_inline_decode(xdr, nbytes);
> +	if (p !=3D NULL)
> +		return p;
> +	return xdr_copy_to_scratch(xdr, nbytes);
>  }
>  EXPORT_SYMBOL_GPL(xdr_inline_decode);
> =20
> @@ -671,16 +768,12 @@ EXPORT_SYMBOL_GPL(xdr_read_pages);
>   */
>  void xdr_enter_page(struct xdr_stream *xdr, unsigned int len)
>  {
> -	char * kaddr =3D page_address(xdr->buf->pages[0]);
>  	xdr_read_pages(xdr, len);
>  	/*
>  	 * Position current pointer at beginning of tail, and
>  	 * set remaining message length.
>  	 */
> -	if (len > PAGE_CACHE_SIZE - xdr->buf->page_base)
> -		len =3D PAGE_CACHE_SIZE - xdr->buf->page_base;
> -	xdr->p =3D (__be32 *)(kaddr + xdr->buf->page_base);
> -	xdr->end =3D (__be32 *)((char *)xdr->p + len);
> +	xdr_set_page_base(xdr, 0, len);
>  }
>  EXPORT_SYMBOL_GPL(xdr_enter_page);
> =20
> --=20
> 1.7.3.4
>=20
>=20
>=20
> --=20
> Trond Myklebust
> Linux NFS client maintainer
>=20
> NetApp
> Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org
> www.netapp.com
>=20
>=20

--=20
Pengutronix e.K.                           | Uwe Kleine-K=F6nig        =
    |
Industrial Linux Solutions                 | http://www.pengutronix.de/=
  |
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Newsgroups: gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
Date: Mon, 10 Jan 2011 13:44:25 +0100
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Cc: James Bottomley <James.Bottomley-d9PhHud1JfjCXq6kfMZ53/egYHeGw8Jk@public.gmane.org>,
	Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
	Linus Torvalds <torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
	linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	=?UTF-8?B?VXdlIA==?= =?UTF-8?B?S2xlaW5lLUvDtm5pZw==?= 
	<u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
	Marc Kleine-Budde <m.kleine-budde-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
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	linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
To: Trond Myklebust <Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
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On 01/09/2011 12:15 AM, Trond Myklebust wrote:
> From 8b2e60cef5c65eef41ab61286f62dec6bfb1ac27 Mon Sep 17 00:00:00 2001
> From: Trond Myklebust <Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
> Date: Sat, 8 Jan 2011 17:45:38 -0500
> Subject: [PATCH] NFS: Don't use vm_map_ram() in readdir
>=20
> vm_map_ram() is not available on NOMMU platforms, and causes trouble
> on incoherrent architectures such as ARM when we access the page data
> through both the direct and the virtual mapping.
>=20
> The alternative is to use the direct mapping to access page data
> for the case when we are not crossing a page boundary, but to copy
> the data into a linear scratch buffer when we are accessing data
> that spans page boundaries.
>=20
> Signed-off-by: Trond Myklebust <Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
Tested-by: Marc Kleine-Budde <mkl-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>

=2E.on AT91 (armv5)

regards, Marc

--=20
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |


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From - Thu Nov 08 21:06:43 2018
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X-Mozilla-Keys:                                                                                 
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: WARNING: Out of order unwind entry!
Date: Mon, 10 Jan 2011 09:40:07 -0500 (EST)
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To: mroos@linux.ee (Meelis Roos)
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> I'm trying the newest kernel (2.6.37+git) on 64-bit parisc after a long 
> pause. The good news is that PCI resource allocatrion problem with tulip 
> (that was biting me at about 2.6.30-31 timeframe) has been fixed.
> 
> Generally it seems to run good but I get a couple of warnings in dmesg. 
> The first is a bunch of warnings about out of order unwind entries:
> 
> [    0.000000] unwind_init: start = 0x4050f000, end = 0x4053cef0, entries = 11759
> [    0.000000] WARNING: Out of order unwind entry! 0000000040510720 and 0000000040510730
> [    0.000000] WARNING: Out of order unwind entry! 0000000040510730 and 0000000040510740
> [    0.000000] WARNING: Out of order unwind entry! 0000000040511330 and 0000000040511340
> [    0.000000] WARNING: Out of order unwind entry! 0000000040511340 and 0000000040511350
> 
> Is this report any good or should I provide vmlinux or some other debug 
> output? Or if it is known anyway then please just ignore my report.

This should be fixed by a combination of kernel and binutils fixes.
Look back in the archives for details.

The binutils version currently in debian unstable isn't new enough.
If you build your own, you have to make sure GCC uses it.  Currently,
debian configures their 64-bit hppa compiler builds with --with-as=...
So, you may also want to rebuild GCC.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:43 2018
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From: Trond Myklebust <Trond.Myklebust@netapp.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
Date: Mon, 10 Jan 2011 11:25:34 -0500
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
	Russell King - ARM Linux <linux@arm.linux.org.uk>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
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On Mon, 2011-01-10 at 11:50 +0100, Uwe Kleine-K=C3=B6nig wrote:=20
> Hi Trond,
>=20
> On Sat, Jan 08, 2011 at 06:15:51PM -0500, Trond Myklebust wrote:
> > -------------------------------------------------------------------=
----------------=20
> It would be great if you could add a "8<" in the line above next time=
=2E
> Then git-am -c does the right thing (at least I think so).

Sorry. I wasn't aware of that particular idiom. So something like

8<------------------------------------------------------------
=46rom: Trond Myklebust <Trond.Myklebust@netapp.com>
Subject: .....


--=20
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust@netapp.com
www.netapp.com


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Newsgroups: gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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On 01/10/2011 05:25 PM, Trond Myklebust wrote:
> On Mon, 2011-01-10 at 11:50 +0100, Uwe Kleine-K=C3=B6nig wrote:=20
>> Hi Trond,
>>
>> On Sat, Jan 08, 2011 at 06:15:51PM -0500, Trond Myklebust wrote:
>>> ---------------------------------------------------------------------=
--------------=20
>> It would be great if you could add a "8<" in the line above next time.=

>> Then git-am -c does the right thing (at least I think so).
>=20
> Sorry. I wasn't aware of that particular idiom. So something like
>=20
> 8<------------------------------------------------------------
> From: Trond Myklebust <Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
> Subject: .....

Yes.

=46rom "man git-mailinfo":
"A line that mainly consists of scissors (either ">8" or "8<") and
perforation (dash "-")"

BTW:
Is this patch a candidate for stable?

regards, Marc

--=20
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |


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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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On Mon, 2011-01-10 at 18:08 +0100, Marc Kleine-Budde wrote:=20
> On 01/10/2011 05:25 PM, Trond Myklebust wrote:
> > On Mon, 2011-01-10 at 11:50 +0100, Uwe Kleine-K=C3=B6nig wrote:=20
> >> Hi Trond,
> >>
> >> On Sat, Jan 08, 2011 at 06:15:51PM -0500, Trond Myklebust wrote:
> >>> -----------------------------------------------------------------=
------------------=20
> >> It would be great if you could add a "8<" in the line above next t=
ime.
> >> Then git-am -c does the right thing (at least I think so).
> >=20
> > Sorry. I wasn't aware of that particular idiom. So something like
> >=20
> > 8<------------------------------------------------------------
> > From: Trond Myklebust <Trond.Myklebust@netapp.com>
> > Subject: .....
>=20
> Yes.
>=20
> From "man git-mailinfo":
> "A line that mainly consists of scissors (either ">8" or "8<") and
> perforation (dash "-")"
>=20
> BTW:
> Is this patch a candidate for stable?

Yes. I'm planning on sending it to the stable list after Linus merges i=
t
into mainline.

--=20
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust@netapp.com
www.netapp.com


From - Thu Nov 08 21:06:43 2018
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Newsgroups: gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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On 01/10/2011 06:20 PM, Trond Myklebust wrote:
>> Is this patch a candidate for stable?
>=20
> Yes. I'm planning on sending it to the stable list after Linus merges i=
t
> into mainline.

Fine!

regards, Marc

--=20
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |


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From - Thu Nov 08 21:06:43 2018
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.nfs,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.arm.kernel
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/8764>

Hello Trond,

On Mon, Jan 10, 2011 at 12:20:35PM -0500, Trond Myklebust wrote:
> On Mon, 2011-01-10 at 18:08 +0100, Marc Kleine-Budde wrote:=20
> > On 01/10/2011 05:25 PM, Trond Myklebust wrote:
> > > On Mon, 2011-01-10 at 11:50 +0100, Uwe Kleine-K=F6nig wrote:=20
> > >> Hi Trond,
> > >>
> > >> On Sat, Jan 08, 2011 at 06:15:51PM -0500, Trond Myklebust wrote:
> > >>> ---------------------------------------------------------------=
--------------------=20
> > >> It would be great if you could add a "8<" in the line above next=
 time.
> > >> Then git-am -c does the right thing (at least I think so).
> > >=20
> > > Sorry. I wasn't aware of that particular idiom. So something like
> > >=20
> > > 8<------------------------------------------------------------
> > > From: Trond Myklebust <Trond.Myklebust@netapp.com>
> > > Subject: .....
> >=20
> > Yes.
> >=20
> > From "man git-mailinfo":
> > "A line that mainly consists of scissors (either ">8" or "8<") and
> > perforation (dash "-")"
> >=20
> > BTW:
> > Is this patch a candidate for stable?
>=20
> Yes. I'm planning on sending it to the stable list after Linus merges=
 it
> into mainline.
So there is another idiom for you:  just put

	Cc: stable@kernel.org

in the S-o-b block and Greg will pick it off "automatically".  (Just in
case you don't know, and if you do, maybe someone else learned
something.)

Best regards
Uwe

--=20
Pengutronix e.K.                           | Uwe Kleine-K=F6nig        =
    |
Industrial Linux Solutions                 | http://www.pengutronix.de/=
  |

From - Thu Nov 08 21:06:43 2018
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Newsgroups: gmane.linux.nfs,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.arm.kernel
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
Date: Mon, 10 Jan 2011 14:29:27 -0500
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	 <20110110105019.GC24920@pengutronix.de>
	 <1294676734.3349.10.camel@heimdal.trondhjem.org>
	 <4D2B3D03.8050504@pengutronix.de>
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To: Uwe =?ISO-8859-1?Q?Kleine-K=F6nig?= 
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On Mon, 2011-01-10 at 20:25 +0100, Uwe Kleine-K=C3=B6nig wrote:=20
> Hello Trond,
>=20
> On Mon, Jan 10, 2011 at 12:20:35PM -0500, Trond Myklebust wrote:
> > On Mon, 2011-01-10 at 18:08 +0100, Marc Kleine-Budde wrote:=20
> > > On 01/10/2011 05:25 PM, Trond Myklebust wrote:
> > > > On Mon, 2011-01-10 at 11:50 +0100, Uwe Kleine-K=C3=B6nig wrote:=
=20
> > > >> Hi Trond,
> > > >>
> > > >> On Sat, Jan 08, 2011 at 06:15:51PM -0500, Trond Myklebust wrot=
e:
> > > >>> -------------------------------------------------------------=
----------------------=20
> > > >> It would be great if you could add a "8<" in the line above ne=
xt time.
> > > >> Then git-am -c does the right thing (at least I think so).
> > > >=20
> > > > Sorry. I wasn't aware of that particular idiom. So something li=
ke
> > > >=20
> > > > 8<------------------------------------------------------------
> > > > From: Trond Myklebust <Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
> > > > Subject: .....
> > >=20
> > > Yes.
> > >=20
> > > From "man git-mailinfo":
> > > "A line that mainly consists of scissors (either ">8" or "8<") an=
d
> > > perforation (dash "-")"
> > >=20
> > > BTW:
> > > Is this patch a candidate for stable?
> >=20
> > Yes. I'm planning on sending it to the stable list after Linus merg=
es it
> > into mainline.
> So there is another idiom for you:  just put
>=20
> 	Cc: stable-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
>=20
> in the S-o-b block and Greg will pick it off "automatically".  (Just =
in
> case you don't know, and if you do, maybe someone else learned
> something.)

I usually do this, but there is a slight problem with that approach:
Greg gets to do all the work of figuring out to which stable kernels
this particular patch applies. In this case, since we're only talking
about the 2.6.37 kernel, I prefer to use the mailing lists.

Cheers
  Trond
--=20
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org
www.netapp.com

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From - Thu Nov 08 21:06:43 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.nfs,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.arm.kernel
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/8766>

On Mon, 2011-01-10 at 14:29 -0500, Trond Myklebust wrote:
> I usually do this, but there is a slight problem with that approach:
> Greg gets to do all the work of figuring out to which stable kernels
> this particular patch applies. In this case, since we're only talking
> about the 2.6.37 kernel, I prefer to use the mailing lists.

So the non-standard, but accepted way of doing this is

Cc: Stable Tree <stable@kernel.org>	[2.6.37]

James



From - Thu Nov 08 21:06:44 2018
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2011/1/10 Trond Myklebust <Trond.Myklebust@netapp.com>:
>
> I usually do this, but there is a slight problem with that approach:
> Greg gets to do all the work of figuring out to which stable kernels
> this particular patch applies. In this case, since we're only talking
> about the 2.6.37 kernel, I prefer to use the mailing lists.

Just do

  Cc: stable@kernel.org  [2.6.37]

or similar. It's quite common.

So EVEN IF you want to email people around about the patch separately,
do add the "Cc: stable" marker. It's worthwhile information about the
patch for everybody involved.

                     Linus
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.nfs,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.arm.kernel
Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8]
Date: Mon, 10 Jan 2011 15:15:07 -0500
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Cc: Uwe =?ISO-8859-1?Q?Kleine-K=F6nig?= 
	<u.kleine-koenig@pengutronix.de>,
	Marc Kleine-Budde <mkl@pengutronix.de>,
	linux-arch@vger.kernel.org, linux-nfs@vger.kernel.org,
	Russell King - ARM Linux <linux@arm.linux.org.uk>,
	Parisc List <linux-parisc@vger.kernel.org>,
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	James Bottomley <James.Bottomley@hansenpartnership.com>,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Mon, 2011-01-10 at 11:34 -0800, Linus Torvalds wrote: 
> 2011/1/10 Trond Myklebust <Trond.Myklebust@netapp.com>:
> >
> > I usually do this, but there is a slight problem with that approach:
> > Greg gets to do all the work of figuring out to which stable kernels
> > this particular patch applies. In this case, since we're only talking
> > about the 2.6.37 kernel, I prefer to use the mailing lists.
> 
> Just do
> 
>   Cc: stable@kernel.org  [2.6.37]
> 
> or similar. It's quite common.
> 
> So EVEN IF you want to email people around about the patch separately,
> do add the "Cc: stable" marker. It's worthwhile information about the
> patch for everybody involved.

OK. Patch description amended and recommitted in git. Thanks to all for
the tips...

-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust@netapp.com
www.netapp.com


From - Thu Nov 08 21:06:44 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: flush pages through tmpalias space
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On Sun, 2011-01-09 at 16:52 -0500, John David Anglin wrote:
> On Wed, 22 Dec 2010, James Bottomley wrote:
> > The kernel has an 8M tmpailas space (originally designed for copying
> > and clearing pages but now only used for clearing).  The idea is
> > to place zeros into the cache above a physical page rather than into
> > the physical page and flush the cache, because often the zeros end up
> > being replaced quickly anyway.
> > 
> > We can also use the tmpalias space for flushing a page.  The difference
> > here is that we have to do tmpalias processing in the non access data and
> > instruction traps.  The principle is the same: as long as we know the physical
> > address and have a virtual address congruent to the real one, the flush will
> > be effective.
> > 
> > In order to use the tmpalias space, the icache miss path has to be enhanced to
> > check for the alias region to make the fic instruction effective.
> 
> Since I began testing this change, I have started seeing problems with the
> console input on gsyprf11 and my rp3440.  If I HUP getty, the console works
> for awhile and then stops working again.  Suspect the "INEQIVALENT ALIAS"
> messages somehow kill the console.  I get a lot of these doing make check
> for GCC from the tests that intentionally generate a segv to test exception
> support.

In theory, the patch is actually stricter than our original flushing
support because it eliminates the ineffective flushes and detects
inequvalent aliases (and flushes all inequivalent addresses).

> I have also had at least one console related HPMC.  Analysis is attached.
> I don't fully understand the actual cause of the HPMC (buffer overrun?).
> The kernel was built with GCC 4.5.3.  The faulting instruction appears
> to have the base and index interchanged, although this shouldn't affect
> linux.  I thought this issue was fixed as a fair bit of work on this was
> done in the middle-end.
> 
> I have to say that gsyprf11 running a SMP kernel built with 4.5.3 is
> more stable with your change than it has been for a long time.

So I'm not sure what to make of this ... any memory fault shouldn't
result in a HPMC ... I probably need to decode the HPMC to see what its
saying ... I'll get around to that on the Weekend, hopefully.

James


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From - Thu Nov 08 21:06:44 2018
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On Mon, 10 Jan 2011, James Bottomley wrote:

> > Since I began testing this change, I have started seeing problems with the
> > console input on gsyprf11 and my rp3440.  If I HUP getty, the console works
> > for awhile and then stops working again.  Suspect the "INEQIVALENT ALIAS"
> > messages somehow kill the console.  I get a lot of these doing make check
> > for GCC from the tests that intentionally generate a segv to test exception
> > support.
> 
> In theory, the patch is actually stricter than our original flushing
> support because it eliminates the ineffective flushes and detects
> inequvalent aliases (and flushes all inequivalent addresses).

It might be that I only became aware of the console issue while
testing your patch.  Probably, I should retest without the patch.
It might just have to do with console messages and not cache flushing.

The stricter flushing would definitely appear to be an improvement
and indeed the messages have been useful in locating inequivalent
aliases.

As I have found, we have inequivalent aliases for almost every executable
when the boundary between text and data isn't exactly on a page boundary.
I would think this would be an issue for all machines with a VIPT
architecture, so I'm surprised that it hasn't come up before.

I'm a bit worried about the ordering of the flushes on processors that
don't support inequivalent aliases.  It would appear we generally flush
the text page first with the current code.

I can still cause random segvs on rp3440 if I use make -j4 or higher
building GCC ;(

> > I have also had at least one console related HPMC.  Analysis is attached.
> > I don't fully understand the actual cause of the HPMC (buffer overrun?).
> > The kernel was built with GCC 4.5.3.  The faulting instruction appears
> > to have the base and index interchanged, although this shouldn't affect
> > linux.  I thought this issue was fixed as a fair bit of work on this was
> > done in the middle-end.
> > 
> > I have to say that gsyprf11 running a SMP kernel built with 4.5.3 is
> > more stable with your change than it has been for a long time.
> 
> So I'm not sure what to make of this ... any memory fault shouldn't
> result in a HPMC ... I probably need to decode the HPMC to see what its
> saying ... I'll get around to that on the Weekend, hopefully.

That would be great.  I don't have the documentation needed to decode
HPMCs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Alex Vladimirovich <porebrik@junkemail.ru>
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Hello PA-RISC Linux list!

Please reply back to me using <artem.falcon(at)gmail.com> address
instead, since porebrik@junkemail.ru is my junk mailbox for various
mail lists, and it's overflooded.

Is any technitian there who has some experience with failing c8000s?
I got oppressive "System Firmware Hang" according to diagnostic LEDs
on
rear panel.
Things that i already tried as well (and sorry for my english):
(not in right order, i've tried some of steps dozen of times):
1) Removed all the periphery (PCI cards, video card, HDDs);
2) Attached to serial port and used "COM Port Toolkit" software
to try send some values and sequences, but no replies from machine.
Settings were set following manual
(BCM led on the board blinks which means the BCM itself works);
3) Removed and swapped processors, swapped VRMs, tried to boot machine
with only 1 processor installed;
4) Checked the voltage of "CMOS" battery without and under the load,
removed it and installed back;
5) Removed additional memory, saved only two sticks;
6) Installed video card again, attached to it, attached USB keyboard,
same symptoms.
Can somebody suggest something else before i'll put this board into
trash
bin and try to get a new one?
Maybe someone knows the placement of firmware eeprom? Can he dump
raw contents from his chip?
Since there are many of c8000 geeks there, maybe any know any of
HP engineers/technitians?
Maybe some of you or they know some "magic" sequences or steps
which can be done before i will call this board a "brick" totally.

I also seen that there is Xilinx Spartan PLD chip on the board,
for what is it used for? Because it's known as relatively costly
solution for the vendor.

Thanks for any help!
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From - Thu Nov 08 21:06:44 2018
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Hello PA-RISC Linux list!
Is any technitian there who has some experience with failing c8000s?
I got oppressive "System Firmware Hang" according to diagnostic LEDs
on
rear panel.
Things that i already tried as well (and sorry for my english):
(not in right order, i've tried some of steps dozen of times):
1) Removed all the periphery (PCI cards, video card, HDDs);
2) Attached to serial port and used "COM Port Toolkit" software
to try send some values and sequences, but no replies from machine.
Settings were set following manual
(BCM led on the board blinks which means the BCM itself works);
3) Removed and swapped processors, swapped VRMs, tried to boot machine
with only 1 processor installed;
4) Checked the voltage of "CMOS" battery without and under the load,
removed it and installed back;
5) Removed additional memory, saved only two sticks;
6) Installed video card again, attached to it, attached USB keyboard,
same symptoms.
Can somebody suggest something else before i'll put this board into
trash
bin and try to get a new one?
Maybe someone knows the placement of firmware eeprom? Can he dump
raw contents from his chip?
Since there are many of c8000 geeks there, maybe any know any of
HP engineers/technitians?
Maybe some of you or they know some "magic" sequences or steps
which can be done before i will call this board a "brick" totally.

I also seen that there is Xilinx Spartan PLD chip on the board,
for what is it used for? Because it's known as relatively costly
solution for the vendor.

Thanks for any help!
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on Parisc, we have an include of linux/mm.h inside our asm/pgtable.h, so
this patch 

commit 14fd403f2146f740942d78af4e0ee59396ad8eab
Author: Andrea Arcangeli <aarcange@redhat.com>
Date:   Thu Jan 13 15:46:37 2011 -0800

    thp: export maybe_mkwrite

Causes us an unsatisfiable use of pte_mkwrite in linux/mm.h

The fix is obviously not to include linux/mm.h in our pgtable.h, which
unbreaks the build.

James

---

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index f3c0973..5d7b8ce 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -10,11 +10,13 @@
  * we simulate an x86-style page table for the linux mm code
  */
 
-#include <linux/mm.h>		/* for vm_area_struct */
 #include <linux/bitops.h>
+#include <linux/spinlock.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
+struct vm_area_struct;
+
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=


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From - Thu Nov 08 21:06:44 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: compile failure on hppa64: pte_mkwrite
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Tried todays 2.6.37+git on hppa64 and it fail to compile:

  CC      arch/parisc/kernel/asm-offsets.s
In file included from /home/mroos/linux-2.6/arch/parisc/include/asm/pgtable.h:13,
                 from arch/parisc/kernel/asm-offsets.c:37:
include/linux/mm.h: In function 'maybe_mkwrite':
include/linux/mm.h:482: error: implicit declaration of function 'pte_mkwrite'
include/linux/mm.h:482: error: incompatible types when assigning to type 'pte_t' from type 'int'
In file included from arch/parisc/kernel/asm-offsets.c:37:
/home/mroos/linux-2.6/arch/parisc/include/asm/pgtable.h: At top level:
/home/mroos/linux-2.6/arch/parisc/include/asm/pgtable.h:338: error: conflicting types for 'pte_mkwrite'
include/linux/mm.h:482: note: previous implicit declaration of 'pte_mkwrite' was here
make[1]: *** [arch/parisc/kernel/asm-offsets.s] Error 1
make: *** [prepare0] Error 2

It seems pte_mkwrite is referenced in mm.h but not defined anywhere in 
include directory.

-- 
Meelis Roos (mroos@linux.ee)
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On 01/14/11 14:59, Meelis Roos wrote:
> Tried todays 2.6.37+git on hppa64 and it fail to compile:
> 
>   CC      arch/parisc/kernel/asm-offsets.s
> In file included from /home/mroos/linux-2.6/arch/parisc/include/asm/pgtable.h:13,
>                  from arch/parisc/kernel/asm-offsets.c:37:
> include/linux/mm.h: In function 'maybe_mkwrite':
> include/linux/mm.h:482: error: implicit declaration of function 'pte_mkwrite'
> include/linux/mm.h:482: error: incompatible types when assigning to type 'pte_t' from type 'int'
> In file included from arch/parisc/kernel/asm-offsets.c:37:
> /home/mroos/linux-2.6/arch/parisc/include/asm/pgtable.h: At top level:
> /home/mroos/linux-2.6/arch/parisc/include/asm/pgtable.h:338: error: conflicting types for 'pte_mkwrite'
> include/linux/mm.h:482: note: previous implicit declaration of 'pte_mkwrite' was here
> make[1]: *** [arch/parisc/kernel/asm-offsets.s] Error 1
> make: *** [prepare0] Error 2
> 
> It seems pte_mkwrite is referenced in mm.h but not defined anywhere in 
> include directory.
> 

James posted a patch:

http://marc.info/?l=linux-parisc&m=129504371532124&w=2

-- 
~Randy
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OK, I finally got them put together.  I'll try to use a more standard
workflow (like kyle did) ... this, unfortunately means that none of my
standard scripts worked, so I had to redo them all.

The current tree is here:

http://git.kernel.org/?p=linux/kernel/git/jejb/parisc-2.6.git

All branches are stored as topic ones with <topic> as the head and
<topic>-base as the base.  The current set of topics are

fixes - long lived topic branch for various fixes
for-next - topic for pulling into linux-next
tmpalias-flush - the current set of tmpalias flush patches.

In addition, the patches and changelogs which comprise each topic will
be available here:

http://www.kernel.org/pub/linux/kernel/people/jejb/parisc-2.6-<topic>.diff
http://www.kernel.org/pub/linux/kernel/people/jejb/parisc-2.6-<topic>.changelog

James


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Hi Stephen,

We've had a change of maintainer over at parisc and a consequent tree
change.  Could you replace

git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git#next

with

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git#for-next

as the parisc tree for inclusion in linux next.

Hopefully, there won't be any issues with it, but if there are, please
send them directly to the parisc list (we have multiple maintainers, so
one of us will see and sort it out).

Parisc List <linux-parisc@vger.kernel.org>

Thanks,

James


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Subject: Re: Change in parisc tree source for Linux Next
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Hi James,

On Sat, 15 Jan 2011 09:35:31 -0600 James Bottomley <James.Bottomley@HansenP=
artnership.com> wrote:
>
> We've had a change of maintainer over at parisc and a consequent tree
> change.  Could you replace
>=20
> git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git#next
>=20
> with
>=20
> git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git#for-next
>=20
> as the parisc tree for inclusion in linux next.

No worries.  Done.

> Hopefully, there won't be any issues with it, but if there are, please
> send them directly to the parisc list (we have multiple maintainers, so
> one of us will see and sort it out).
>=20
> Parisc List <linux-parisc@vger.kernel.org>

Also changed.

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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On Mon, Dec 6, 2010 at 11:26 PM, Helge Deller <deller@gmx.de> wrote:
> On 12/06/2010 10:53 PM, James Bottomley wrote:
>>
>> On Mon, 2010-12-06 at 11:43 -0500, Kyle McMartin wrote:
>>>
>>> I'm getting a bit bored of maintaining the parisc trees and such...=
 Do
>>> either of you want to take over? If you do, please reply so that Li=
nus
>>> knows that the next pull request will come from you instead of me.

Thank you Kyle, we will call you only for interesting tasks ;)

>> I suppose I can ... it's not a high volume tree, fortunately. =A0Tha=
nks
>> for doing it this long ... although I've got to say, I think continu=
ing
>> would be good practise for you.
>
> James, thanks for taking that job!
> Since our second baby (that time a son) was born just yesterday, I do=
n't
> think I will have much time during the next few weeks at least :-)

I don't do anything but run my j5600 in the secret, trying recent
trees and building some Debian packages. For what I can, I'm
available.

Thank you all.

Domenico

-----[ Domenico Andreoli, aka cavok
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From - Thu Nov 08 21:06:44 2018
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From: Russell King - ARM Linux <linux@arm.linux.org.uk>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.comp.emulators.xen.devel,gmane.linux.kernel.virtualization,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH] sched: provide scheduler_ipi() callback in response to
        smp_send_reschedule()
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Cc: Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Mike Frysinger <vapier@gentoo.org>,
        Mikael Starvik <starvik@axis.com>,
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        Tony Luck <tony.luck@intel.com>,
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        Hirokazu Takata <takata@linux-m32r.org>,
        Ralf Baechle <ralf@linux-mips.org>,
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        lin
To: Peter Zijlstra <peterz@infradead.org>
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On Mon, Jan 17, 2011 at 12:07:13PM +0100, Peter Zijlstra wrote:
> diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
> index 42aa078..c4a570b 100644
> --- a/arch/alpha/kernel/smp.c
> +++ b/arch/alpha/kernel/smp.c
> @@ -587,6 +587,7 @@ handle_ipi(struct pt_regs *regs)
>  		case IPI_RESCHEDULE:
>  			/* Reschedule callback.  Everything to be done
>  			   is done by the interrupt return path.  */
> +			scheduler_ipi();
>  			break;
>  
>  		case IPI_CALL_FUNC:
> diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
> index 9066473..ffde790 100644
> --- a/arch/arm/kernel/smp.c
> +++ b/arch/arm/kernel/smp.c
> @@ -579,6 +579,7 @@ asmlinkage void __exception do_IPI(struct pt_regs *regs)
>  				 * nothing more to do - eveything is
>  				 * done on the interrupt return path
>  				 */
> +				scheduler_ipi();

Maybe remove the comment "everything is done on the interrupt return path"
as with this function call, that is no longer the case.

Looks like the same is true for Alpha as well?



From - Thu Nov 08 21:06:45 2018
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From: Peter Zijlstra <peterz@infradead.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.comp.emulators.xen.devel,gmane.linux.kernel.virtualization,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH] sched: provide scheduler_ipi() callback in response to
 smp_send_reschedule()
Date: Mon, 17 Jan 2011 12:31:24 +0100
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On Mon, 2011-01-17 at 11:26 +0000, Russell King - ARM Linux wrote:
> On Mon, Jan 17, 2011 at 12:07:13PM +0100, Peter Zijlstra wrote:
> > diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
> > index 42aa078..c4a570b 100644
> > --- a/arch/alpha/kernel/smp.c
> > +++ b/arch/alpha/kernel/smp.c
> > @@ -587,6 +587,7 @@ handle_ipi(struct pt_regs *regs)
> >  		case IPI_RESCHEDULE:
> >  			/* Reschedule callback.  Everything to be done
> >  			   is done by the interrupt return path.  */
> > +			scheduler_ipi();
> >  			break;
> >  
> >  		case IPI_CALL_FUNC:
> > diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
> > index 9066473..ffde790 100644
> > --- a/arch/arm/kernel/smp.c
> > +++ b/arch/arm/kernel/smp.c
> > @@ -579,6 +579,7 @@ asmlinkage void __exception do_IPI(struct pt_regs *regs)
> >  				 * nothing more to do - eveything is
> >  				 * done on the interrupt return path
> >  				 */
> > +				scheduler_ipi();
> 
> Maybe remove the comment "everything is done on the interrupt return path"
> as with this function call, that is no longer the case.
> 
> Looks like the same is true for Alpha as well?

Right, will do, thanks! It looks like I've somewhat inconsistent with
that.



From - Thu Nov 08 21:06:45 2018
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From: Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
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Subject: Re: [PATCH] sched: provide scheduler_ipi()
 callback in response to smp_send_reschedule()
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To: Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>
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On Mon, 2011-01-17 at 12:31 +0100, Peter Zijlstra wrote:
> On Mon, 2011-01-17 at 11:26 +0000, Russell King - ARM Linux wrote:

> > Maybe remove the comment "everything is done on the interrupt return path"
> > as with this function call, that is no longer the case.

(Removed am33, m32r-ka, m32r, arm-kernel lists because they kept sending
bounces)

---
Subject: sched: provide scheduler_ipi() callback in response to smp_send_reschedule()
From: Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Date: Mon, 17 Jan 2011 12:07:13 +0100

For future rework of try_to_wake_up() we'd like to push part of that
onto the CPU the task is actually going to run on, in order to do so we
need a generic callback from the existing scheduler IPI.

This patch introduces such a generic callback: scheduler_ipi() and
implements it as a NOP.

I visited existing smp_send_reschedule() implementations and tried to
add a call to scheduler_ipi() in their handler part, but esp. for MIPS
I'm not quite sure I actually got all of them.

Also, while reading through all this, I noticed the blackfin SMP code
looks to be broken, it simply discards any IPI when low on memory.

Signed-off-by: Peter Zijlstra <a.p.zijlstra-/NLkJaSkS4VmR6Xm/wNWPw@public.gmane.org>
LKML-Reference: <new-submission>
---
 arch/alpha/kernel/smp.c         |    3 +--
 arch/arm/kernel/smp.c           |    5 +----
 arch/blackfin/mach-common/smp.c |    5 ++---
 arch/cris/arch-v32/kernel/smp.c |   13 ++++++++-----
 arch/ia64/kernel/irq_ia64.c     |    2 ++
 arch/ia64/xen/irq_xen.c         |   10 +++++++++-
 arch/m32r/kernel/smp.c          |    4 +---
 arch/mips/kernel/smtc.c         |    2 +-
 arch/mips/sibyte/bcm1480/smp.c  |    7 +++----
 arch/mips/sibyte/sb1250/smp.c   |    7 +++----
 arch/mn10300/kernel/smp.c       |    5 +----
 arch/parisc/kernel/smp.c        |    5 +----
 arch/powerpc/kernel/smp.c       |    2 +-
 arch/s390/kernel/smp.c          |    6 +++---
 arch/sh/kernel/smp.c            |    2 ++
 arch/sparc/kernel/smp_32.c      |    2 +-
 arch/sparc/kernel/smp_64.c      |    1 +
 arch/tile/kernel/smp.c          |    6 +-----
 arch/um/kernel/smp.c            |    2 +-
 arch/x86/kernel/smp.c           |    5 ++---
 arch/x86/xen/smp.c              |    5 ++---
 include/linux/sched.h           |    1 +
 22 files changed, 48 insertions(+), 52 deletions(-)

Index: linux-2.6/arch/alpha/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/alpha/kernel/smp.c
+++ linux-2.6/arch/alpha/kernel/smp.c
@@ -585,8 +585,7 @@ handle_ipi(struct pt_regs *regs)
 
 		switch (which) {
 		case IPI_RESCHEDULE:
-			/* Reschedule callback.  Everything to be done
-			   is done by the interrupt return path.  */
+			scheduler_ipi();
 			break;
 
 		case IPI_CALL_FUNC:
Index: linux-2.6/arch/arm/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/arm/kernel/smp.c
+++ linux-2.6/arch/arm/kernel/smp.c
@@ -575,10 +575,7 @@ asmlinkage void __exception do_IPI(struc
 				break;
 
 			case IPI_RESCHEDULE:
-				/*
-				 * nothing more to do - eveything is
-				 * done on the interrupt return path
-				 */
+				scheduler_ipi();
 				break;
 
 			case IPI_CALL_FUNC:
Index: linux-2.6/arch/blackfin/mach-common/smp.c
===================================================================
--- linux-2.6.orig/arch/blackfin/mach-common/smp.c
+++ linux-2.6/arch/blackfin/mach-common/smp.c
@@ -154,8 +154,7 @@ static irqreturn_t ipi_handler(int irq, 
 		list_del(&msg->list);
 		switch (msg->type) {
 		case BFIN_IPI_RESCHEDULE:
-			/* That's the easiest one; leave it to
-			 * return_from_int. */
+			scheduler_ipi();
 			kfree(msg);
 			break;
 		case BFIN_IPI_CALL_FUNC:
@@ -301,7 +300,7 @@ void smp_send_reschedule(int cpu)
 
 	msg = kzalloc(sizeof(*msg), GFP_ATOMIC);
 	if (!msg)
-		return;
+		return; /* XXX unreliable needs fixing ! */
 	INIT_LIST_HEAD(&msg->list);
 	msg->type = BFIN_IPI_RESCHEDULE;
 
Index: linux-2.6/arch/cris/arch-v32/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/cris/arch-v32/kernel/smp.c
+++ linux-2.6/arch/cris/arch-v32/kernel/smp.c
@@ -340,15 +340,18 @@ irqreturn_t crisv32_ipi_interrupt(int ir
 
 	ipi = REG_RD(intr_vect, irq_regs[smp_processor_id()], rw_ipi);
 
+	if (ipi.vector & IPI_SCHEDULE) {
+		scheduler_ipi();
+	}
 	if (ipi.vector & IPI_CALL) {
-	         func(info);
+		func(info);
 	}
 	if (ipi.vector & IPI_FLUSH_TLB) {
-		     if (flush_mm == FLUSH_ALL)
-			 __flush_tlb_all();
-		     else if (flush_vma == FLUSH_ALL)
+		if (flush_mm == FLUSH_ALL)
+			__flush_tlb_all();
+		else if (flush_vma == FLUSH_ALL)
 			__flush_tlb_mm(flush_mm);
-		     else
+		else
 			__flush_tlb_page(flush_vma, flush_addr);
 	}
 
Index: linux-2.6/arch/ia64/kernel/irq_ia64.c
===================================================================
--- linux-2.6.orig/arch/ia64/kernel/irq_ia64.c
+++ linux-2.6/arch/ia64/kernel/irq_ia64.c
@@ -31,6 +31,7 @@
 #include <linux/irq.h>
 #include <linux/ratelimit.h>
 #include <linux/acpi.h>
+#include <linux/sched.h>
 
 #include <asm/delay.h>
 #include <asm/intrinsics.h>
@@ -496,6 +497,7 @@ ia64_handle_irq (ia64_vector vector, str
 			smp_local_flush_tlb();
 			kstat_incr_irqs_this_cpu(irq, desc);
 		} else if (unlikely(IS_RESCHEDULE(vector))) {
+			scheduler_ipi();
 			kstat_incr_irqs_this_cpu(irq, desc);
 		} else {
 			ia64_setreg(_IA64_REG_CR_TPR, vector);
Index: linux-2.6/arch/ia64/xen/irq_xen.c
===================================================================
--- linux-2.6.orig/arch/ia64/xen/irq_xen.c
+++ linux-2.6/arch/ia64/xen/irq_xen.c
@@ -92,6 +92,8 @@ static unsigned short saved_irq_cnt;
 static int xen_slab_ready;
 
 #ifdef CONFIG_SMP
+#include <linux/sched.h>
+
 /* Dummy stub. Though we may check XEN_RESCHEDULE_VECTOR before __do_IRQ,
  * it ends up to issue several memory accesses upon percpu data and
  * thus adds unnecessary traffic to other paths.
@@ -99,7 +101,13 @@ static int xen_slab_ready;
 static irqreturn_t
 xen_dummy_handler(int irq, void *dev_id)
 {
+	return IRQ_HANDLED;
+}
 
+static irqreturn_t
+xen_resched_handler(int irq, void *dev_id)
+{
+	scheduler_ipi();
 	return IRQ_HANDLED;
 }
 
@@ -110,7 +118,7 @@ static struct irqaction xen_ipi_irqactio
 };
 
 static struct irqaction xen_resched_irqaction = {
-	.handler =	xen_dummy_handler,
+	.handler =	xen_resched_handler,
 	.flags =	IRQF_DISABLED,
 	.name =		"resched"
 };
Index: linux-2.6/arch/m32r/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/m32r/kernel/smp.c
+++ linux-2.6/arch/m32r/kernel/smp.c
@@ -122,8 +122,6 @@ void smp_send_reschedule(int cpu_id)
  *
  * Description:  This routine executes on CPU which received
  *               'RESCHEDULE_IPI'.
- *               Rescheduling is processed at the exit of interrupt
- *               operation.
  *
  * Born on Date: 2002.02.05
  *
@@ -138,7 +136,7 @@ void smp_send_reschedule(int cpu_id)
  *==========================================================================*/
 void smp_reschedule_interrupt(void)
 {
-	/* nothing to do */
+	scheduler_ipi();
 }
 
 /*==========================================================================*
Index: linux-2.6/arch/mips/kernel/smtc.c
===================================================================
--- linux-2.6.orig/arch/mips/kernel/smtc.c
+++ linux-2.6/arch/mips/kernel/smtc.c
@@ -930,7 +930,7 @@ static void post_direct_ipi(int cpu, str
 
 static void ipi_resched_interrupt(void)
 {
-	/* Return from interrupt should be enough to cause scheduler check */
+	scheduler_ipi();
 }
 
 static void ipi_call_interrupt(void)
Index: linux-2.6/arch/mips/sibyte/bcm1480/smp.c
===================================================================
--- linux-2.6.orig/arch/mips/sibyte/bcm1480/smp.c
+++ linux-2.6/arch/mips/sibyte/bcm1480/smp.c
@@ -20,6 +20,7 @@
 #include <linux/delay.h>
 #include <linux/smp.h>
 #include <linux/kernel_stat.h>
+#include <linux/sched.h>
 
 #include <asm/mmu_context.h>
 #include <asm/io.h>
@@ -189,10 +190,8 @@ void bcm1480_mailbox_interrupt(void)
 	/* Clear the mailbox to clear the interrupt */
 	__raw_writeq(((u64)action)<<48, mailbox_0_clear_regs[cpu]);
 
-	/*
-	 * Nothing to do for SMP_RESCHEDULE_YOURSELF; returning from the
-	 * interrupt will do the reschedule for us
-	 */
+	if (actione & SMP_RESCHEDULE_YOURSELF)
+		scheduler_ipi();
 
 	if (action & SMP_CALL_FUNCTION)
 		smp_call_function_interrupt();
Index: linux-2.6/arch/mips/sibyte/sb1250/smp.c
===================================================================
--- linux-2.6.orig/arch/mips/sibyte/sb1250/smp.c
+++ linux-2.6/arch/mips/sibyte/sb1250/smp.c
@@ -21,6 +21,7 @@
 #include <linux/interrupt.h>
 #include <linux/smp.h>
 #include <linux/kernel_stat.h>
+#include <linux/sched.h>
 
 #include <asm/mmu_context.h>
 #include <asm/io.h>
@@ -177,10 +178,8 @@ void sb1250_mailbox_interrupt(void)
 	/* Clear the mailbox to clear the interrupt */
 	____raw_writeq(((u64)action) << 48, mailbox_clear_regs[cpu]);
 
-	/*
-	 * Nothing to do for SMP_RESCHEDULE_YOURSELF; returning from the
-	 * interrupt will do the reschedule for us
-	 */
+	if (action & SMP_RESCHEDULE_YOURSELF)
+		scheduler_ipi();
 
 	if (action & SMP_CALL_FUNCTION)
 		smp_call_function_interrupt();
Index: linux-2.6/arch/mn10300/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/mn10300/kernel/smp.c
+++ linux-2.6/arch/mn10300/kernel/smp.c
@@ -464,14 +464,11 @@ void smp_send_stop(void)
  * @irq: The interrupt number.
  * @dev_id: The device ID.
  *
- * We need do nothing here, since the scheduling will be effected on our way
- * back through entry.S.
- *
  * Returns IRQ_HANDLED to indicate we handled the interrupt successfully.
  */
 static irqreturn_t smp_reschedule_interrupt(int irq, void *dev_id)
 {
-	/* do nothing */
+	scheduler_ipi();
 	return IRQ_HANDLED;
 }
 
Index: linux-2.6/arch/parisc/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/parisc/kernel/smp.c
+++ linux-2.6/arch/parisc/kernel/smp.c
@@ -155,10 +155,7 @@ ipi_interrupt(int irq, void *dev_id) 
 				
 			case IPI_RESCHEDULE:
 				smp_debug(100, KERN_DEBUG "CPU%d IPI_RESCHEDULE\n", this_cpu);
-				/*
-				 * Reschedule callback.  Everything to be
-				 * done is done by the interrupt return path.
-				 */
+				scheduler_ipi();
 				break;
 
 			case IPI_CALL_FUNC:
Index: linux-2.6/arch/powerpc/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/powerpc/kernel/smp.c
+++ linux-2.6/arch/powerpc/kernel/smp.c
@@ -127,7 +127,7 @@ static irqreturn_t call_function_action(
 
 static irqreturn_t reschedule_action(int irq, void *data)
 {
-	/* we just need the return path side effect of checking need_resched */
+	scheduler_ipi();
 	return IRQ_HANDLED;
 }
 
Index: linux-2.6/arch/s390/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/s390/kernel/smp.c
+++ linux-2.6/arch/s390/kernel/smp.c
@@ -163,12 +163,12 @@ static void do_ext_call_interrupt(unsign
 
 	/*
 	 * handle bit signal external calls
-	 *
-	 * For the ec_schedule signal we have to do nothing. All the work
-	 * is done automatically when we return from the interrupt.
 	 */
 	bits = xchg(&S390_lowcore.ext_call_fast, 0);
 
+	if (test_bit(ec_schedule, &bits))
+		scheduler_ipi();
+
 	if (test_bit(ec_call_function, &bits))
 		generic_smp_call_function_interrupt();
 
Index: linux-2.6/arch/sh/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/sh/kernel/smp.c
+++ linux-2.6/arch/sh/kernel/smp.c
@@ -20,6 +20,7 @@
 #include <linux/module.h>
 #include <linux/cpu.h>
 #include <linux/interrupt.h>
+#include <linux/sched.h>
 #include <asm/atomic.h>
 #include <asm/processor.h>
 #include <asm/system.h>
@@ -323,6 +324,7 @@ void smp_message_recv(unsigned int msg)
 		generic_smp_call_function_interrupt();
 		break;
 	case SMP_MSG_RESCHEDULE:
+		scheduler_ipi();
 		break;
 	case SMP_MSG_FUNCTION_SINGLE:
 		generic_smp_call_function_single_interrupt();
Index: linux-2.6/arch/sparc/kernel/smp_32.c
===================================================================
--- linux-2.6.orig/arch/sparc/kernel/smp_32.c
+++ linux-2.6/arch/sparc/kernel/smp_32.c
@@ -125,7 +125,7 @@ struct linux_prom_registers smp_penguin_
 
 void smp_send_reschedule(int cpu)
 {
-	/* See sparc64 */
+	scheduler_ipi();
 }
 
 void smp_send_stop(void)
Index: linux-2.6/arch/sparc/kernel/smp_64.c
===================================================================
--- linux-2.6.orig/arch/sparc/kernel/smp_64.c
+++ linux-2.6/arch/sparc/kernel/smp_64.c
@@ -1369,6 +1369,7 @@ void smp_send_reschedule(int cpu)
 void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs)
 {
 	clear_softint(1 << irq);
+	scheduler_ipi();
 }
 
 /* This is a nop because we capture all other cpus
Index: linux-2.6/arch/tile/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/tile/kernel/smp.c
+++ linux-2.6/arch/tile/kernel/smp.c
@@ -184,12 +184,8 @@ void flush_icache_range(unsigned long st
 /* Called when smp_send_reschedule() triggers IRQ_RESCHEDULE. */
 static irqreturn_t handle_reschedule_ipi(int irq, void *token)
 {
-	/*
-	 * Nothing to do here; when we return from interrupt, the
-	 * rescheduling will occur there. But do bump the interrupt
-	 * profiler count in the meantime.
-	 */
 	__get_cpu_var(irq_stat).irq_resched_count++;
+	scheduler_ipi();
 
 	return IRQ_HANDLED;
 }
Index: linux-2.6/arch/um/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/um/kernel/smp.c
+++ linux-2.6/arch/um/kernel/smp.c
@@ -173,7 +173,7 @@ void IPI_handler(int cpu)
 			break;
 
 		case 'R':
-			set_tsk_need_resched(current);
+			scheduler_ipi();
 			break;
 
 		case 'S':
Index: linux-2.6/arch/x86/kernel/smp.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/smp.c
+++ linux-2.6/arch/x86/kernel/smp.c
@@ -194,14 +194,13 @@ static void native_stop_other_cpus(int w
 }
 
 /*
- * Reschedule call back. Nothing to do,
- * all the work is done automatically when
- * we return from the interrupt.
+ * Reschedule call back.
  */
 void smp_reschedule_interrupt(struct pt_regs *regs)
 {
 	ack_APIC_irq();
 	inc_irq_stat(irq_resched_count);
+	scheduler_ipi();
 	/*
 	 * KVM uses this interrupt to force a cpu out of guest mode
 	 */
Index: linux-2.6/arch/x86/xen/smp.c
===================================================================
--- linux-2.6.orig/arch/x86/xen/smp.c
+++ linux-2.6/arch/x86/xen/smp.c
@@ -46,13 +46,12 @@ static irqreturn_t xen_call_function_int
 static irqreturn_t xen_call_function_single_interrupt(int irq, void *dev_id);
 
 /*
- * Reschedule call back. Nothing to do,
- * all the work is done automatically when
- * we return from the interrupt.
+ * Reschedule call back.
  */
 static irqreturn_t xen_reschedule_interrupt(int irq, void *dev_id)
 {
 	inc_irq_stat(irq_resched_count);
+	scheduler_ipi();
 
 	return IRQ_HANDLED;
 }
Index: linux-2.6/include/linux/sched.h
===================================================================
--- linux-2.6.orig/include/linux/sched.h
+++ linux-2.6/include/linux/sched.h
@@ -2183,6 +2183,7 @@ extern void set_task_comm(struct task_st
 extern char *get_task_comm(char *to, struct task_struct *tsk);
 
 #ifdef CONFIG_SMP
+static inline void scheduler_ipi(void) { }
 extern unsigned long wait_task_inactive(struct task_struct *, long match_state);
 #else
 static inline unsigned long wait_task_inactive(struct task_struct *p,

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Subject: Re: [PATCH] sched: provide scheduler_ipi() callback in response to
        smp_send_reschedule()
Date: Mon, 17 Jan 2011 11:57:48 +0000
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On Mon, Jan 17, 2011 at 12:41:49PM +0100, Peter Zijlstra wrote:
> ===================================================================
> --- linux-2.6.orig/arch/arm/kernel/smp.c
> +++ linux-2.6/arch/arm/kernel/smp.c
> @@ -575,10 +575,7 @@ asmlinkage void __exception do_IPI(struc
>  				break;
>  
>  			case IPI_RESCHEDULE:
> -				/*
> -				 * nothing more to do - eveything is
> -				 * done on the interrupt return path
> -				 */
> +				scheduler_ipi();
>  				break;
>  
>  			case IPI_CALL_FUNC:

Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>



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Subject: Re: [PATCH] sched: provide scheduler_ipi() callback in response to
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On Mon, 17 Jan 2011 12:07:13 +0100
Peter Zijlstra <peterz@infradead.org> wrote:

> I visited existing smp_send_reschedule() implementations and tried to
> add a call to scheduler_ipi() in their handler part, but esp. for MIPS
> I'm not quite sure I actually got all of them.
>  
> diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
> index 94cf510..61789e8 100644
> --- a/arch/s390/kernel/smp.c
> +++ b/arch/s390/kernel/smp.c
> @@ -163,12 +163,12 @@ static void do_ext_call_interrupt(unsigned int ext_int_code,
>  
>  	/*
>  	 * handle bit signal external calls
> -	 *
> -	 * For the ec_schedule signal we have to do nothing. All the work
> -	 * is done automatically when we return from the interrupt.
>  	 */
>  	bits = xchg(&S390_lowcore.ext_call_fast, 0);
>  
> +	if (test_bit(ec_schedule, &bits))
> +		scheduler_ipi();
> +
>  	if (test_bit(ec_call_function, &bits))
>  		generic_smp_call_function_interrupt();
>  

s390 bits are fine.

-- 
blue skies,
   Martin.

"Reality continues to ruin my life." - Calvin.




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Subject: Re: [PATCH] sched: provide scheduler_ipi() callback in response to
 smp_send_reschedule()
Date: Mon, 17 Jan 2011 08:52:21 -0500
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Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
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To: Peter Zijlstra <peterz@infradead.org>
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On 1/17/2011 6:41 AM, Peter Zijlstra wrote:
> Index: linux-2.6/arch/tile/kernel/smp.c
> ===================================================================
> --- linux-2.6.orig/arch/tile/kernel/smp.c
> +++ linux-2.6/arch/tile/kernel/smp.c
> @@ -184,12 +184,8 @@ void flush_icache_range(unsigned long st
>  /* Called when smp_send_reschedule() triggers IRQ_RESCHEDULE. */
>  static irqreturn_t handle_reschedule_ipi(int irq, void *token)
>  {
> -       /*
> -        * Nothing to do here; when we return from interrupt, the
> -        * rescheduling will occur there. But do bump the interrupt
> -        * profiler count in the meantime.
> -        */
>         __get_cpu_var(irq_stat).irq_resched_count++;
> +       scheduler_ipi();
>
>         return IRQ_HANDLED;
>  }

Acked-by: Chris Metcalf <cmetcalf@tilera.com>

-- 
Chris Metcalf, Tilera Corp.
http://www.tilera.com




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Subject: Re: [PATCH] sched: provide scheduler_ipi() callback in response to
        smp_send_reschedule()
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On Mon, Jan 17, 2011 at 12:41:49PM +0100, Peter Zijlstra wrote:
> Index: linux-2.6/arch/cris/arch-v32/kernel/smp.c
> ===================================================================
> --- linux-2.6.orig/arch/cris/arch-v32/kernel/smp.c
> +++ linux-2.6/arch/cris/arch-v32/kernel/smp.c
> @@ -340,15 +340,18 @@ irqreturn_t crisv32_ipi_interrupt(int ir
> 
>         ipi = REG_RD(intr_vect, irq_regs[smp_processor_id()], rw_ipi);
> 
> +       if (ipi.vector & IPI_SCHEDULE) {
> +               scheduler_ipi();
> +       }
>         if (ipi.vector & IPI_CALL) {
> -                func(info);
> +               func(info);
>         }
>         if (ipi.vector & IPI_FLUSH_TLB) {
> -                    if (flush_mm == FLUSH_ALL)
> -                        __flush_tlb_all();
> -                    else if (flush_vma == FLUSH_ALL)
> +               if (flush_mm == FLUSH_ALL)
> +                       __flush_tlb_all();
> +               else if (flush_vma == FLUSH_ALL)
>                         __flush_tlb_mm(flush_mm);
> -                    else
> +               else
>                         __flush_tlb_page(flush_vma, flush_addr);
>         }
> 

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com



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Subject: Re: [PATCH] sched: provide scheduler_ipi()
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Archived-At: <http://permalink.gmane.org/gmane.linux.hardware.blackfin.kernel.devel/5088>

On 01/17/2011 03:07 AM, Peter Zijlstra wrote:
> For future rework of try_to_wake_up() we'd like to push part of that
> onto the CPU the task is actually going to run on, in order to do so we
> need a generic callback from the existing scheduler IPI.
>
> This patch introduces such a generic callback: scheduler_ipi() and
> implements it as a NOP.
>
> I visited existing smp_send_reschedule() implementations and tried to
> add a call to scheduler_ipi() in their handler part, but esp. for MIPS
> I'm not quite sure I actually got all of them.
>
> Also, while reading through all this, I noticed the blackfin SMP code
> looks to be broken, it simply discards any IPI when low on memory.
>
> Signed-off-by: Peter Zijlstra<a.p.zijlstra-/NLkJaSkS4VmR6Xm/wNWPw@public.gmane.org>
> ---
>   arch/alpha/kernel/smp.c         |    1 +
>   arch/arm/kernel/smp.c           |    1 +
>   arch/blackfin/mach-common/smp.c |    3 ++-
>   arch/cris/arch-v32/kernel/smp.c |   13 ++++++++-----
>   arch/ia64/kernel/irq_ia64.c     |    2 ++
>   arch/ia64/xen/irq_xen.c         |   10 +++++++++-
>   arch/m32r/kernel/smp.c          |    2 +-
>   arch/mips/kernel/smtc.c         |    1 +
>   arch/mips/sibyte/bcm1480/smp.c  |    7 +++----
>   arch/mips/sibyte/sb1250/smp.c   |    7 +++----
[...]

Peter,

You will also have to patch the mailbox_interrupt() function in 
arch/mips/cavium-octeon/smp.c

David Daney.

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Subject: Re: [PATCH] sched: provide scheduler_ipi()
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On Mon, Jan 17, 2011 at 06:07, Peter Zijlstra wrote:
> Also, while reading through all this, I noticed the blackfin SMP code
> looks to be broken, it simply discards any IPI when low on memory.

not really.  see changelog of commit 73a400646b8e26615f3ef1a0a4bc0cd0d5bd284c.
-mike

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Subject: Re: [PATCH] sched: provide scheduler_ipi()
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On Mon, 2011-01-17 at 14:49 -0500, Mike Frysinger wrote:
> On Mon, Jan 17, 2011 at 06:07, Peter Zijlstra wrote:
> > Also, while reading through all this, I noticed the blackfin SMP code
> > looks to be broken, it simply discards any IPI when low on memory.
> 
> not really.  see changelog of commit 73a400646b8e26615f3ef1a0a4bc0cd0d5bd284c.

Ah, indeed, it appears my tree was simply out of date, very good!

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Subject: Re: [PATCH] sched: provide scheduler_ipi() callback in response to
	smp_send_reschedule()
Date: Tue, 18 Jan 2011 07:31:50 +1100
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Cc: linux-m32r-ja@ml.linux-m32r.org, linux-mips@linux-mips.org,
        linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
        "H. Peter
	Anvin" <hpa@zytor.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        David Howells <dhowells@redhat.com>, Paul Mackerras <paulus@samba.org>,
        Helge Deller <deller@gmx.de>, sparclinux@vger.kernel.org,
        Linux-Arch <linux-arch@vger.kernel.org>, linux-s390@vger.kernel.org,
        Jesper Nilsson <jesper.nilsson@axis.com>,
        Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
        Russell King <linux@arm.linux.org.uk>,
        Hirokazu Takata <takata@linux-m32r.org>, x86@kernel.org,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        virtualization@lists.osdl.org, Ingo Molnar <mingo@redhat.com>,
        Matt Turner <mattst88@gmail.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Mike Frysinger <vapi
To: Peter Zijlstra <peterz@infradead.org>
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On Mon, 2011-01-17 at 12:07 +0100, Peter Zijlstra wrote:
> For future rework of try_to_wake_up() we'd like to push part of that
> onto the CPU the task is actually going to run on, in order to do so we
> need a generic callback from the existing scheduler IPI.
> 
> This patch introduces such a generic callback: scheduler_ipi() and
> implements it as a NOP.
> 
> I visited existing smp_send_reschedule() implementations and tried to
> add a call to scheduler_ipi() in their handler part, but esp. for MIPS
> I'm not quite sure I actually got all of them.
> 
> Also, while reading through all this, I noticed the blackfin SMP code
> looks to be broken, it simply discards any IPI when low on memory.

Beware of false positive, I've used "fake" reschedule IPIs in the past
for other things (like kicking a CPU out of sleep state for unrelated
reasons). Nothing that I know that is upstream today but some of that
might come back. I'd like to avoid having to add an atomic to know if
it's a real reschedule, will the scheduler be smart enough to not bother
with false positives ?

Cheers,
Ben.

> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
> ---
>  arch/alpha/kernel/smp.c         |    1 +
>  arch/arm/kernel/smp.c           |    1 +
>  arch/blackfin/mach-common/smp.c |    3 ++-
>  arch/cris/arch-v32/kernel/smp.c |   13 ++++++++-----
>  arch/ia64/kernel/irq_ia64.c     |    2 ++
>  arch/ia64/xen/irq_xen.c         |   10 +++++++++-
>  arch/m32r/kernel/smp.c          |    2 +-
>  arch/mips/kernel/smtc.c         |    1 +
>  arch/mips/sibyte/bcm1480/smp.c  |    7 +++----
>  arch/mips/sibyte/sb1250/smp.c   |    7 +++----
>  arch/mn10300/kernel/smp.c       |    2 +-
>  arch/parisc/kernel/smp.c        |    1 +
>  arch/powerpc/kernel/smp.c       |    1 +
>  arch/s390/kernel/smp.c          |    6 +++---
>  arch/sh/kernel/smp.c            |    2 ++
>  arch/sparc/kernel/smp_32.c      |    2 +-
>  arch/sparc/kernel/smp_64.c      |    1 +
>  arch/tile/kernel/smp.c          |    1 +
>  arch/um/kernel/smp.c            |    2 +-
>  arch/x86/kernel/smp.c           |    1 +
>  arch/x86/xen/smp.c              |    1 +
>  include/linux/sched.h           |    1 +
>  22 files changed, 46 insertions(+), 22 deletions(-)
> 
> diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
> index 42aa078..c4a570b 100644
> --- a/arch/alpha/kernel/smp.c
> +++ b/arch/alpha/kernel/smp.c
> @@ -587,6 +587,7 @@ handle_ipi(struct pt_regs *regs)
>  		case IPI_RESCHEDULE:
>  			/* Reschedule callback.  Everything to be done
>  			   is done by the interrupt return path.  */
> +			scheduler_ipi();
>  			break;
>  
>  		case IPI_CALL_FUNC:
> diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
> index 9066473..ffde790 100644
> --- a/arch/arm/kernel/smp.c
> +++ b/arch/arm/kernel/smp.c
> @@ -579,6 +579,7 @@ asmlinkage void __exception do_IPI(struct pt_regs *regs)
>  				 * nothing more to do - eveything is
>  				 * done on the interrupt return path
>  				 */
> +				scheduler_ipi();
>  				break;
>  
>  			case IPI_CALL_FUNC:
> diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
> index a17107a..e210f8a 100644
> --- a/arch/blackfin/mach-common/smp.c
> +++ b/arch/blackfin/mach-common/smp.c
> @@ -156,6 +156,7 @@ static irqreturn_t ipi_handler(int irq, void *dev_instance)
>  		case BFIN_IPI_RESCHEDULE:
>  			/* That's the easiest one; leave it to
>  			 * return_from_int. */
> +			scheduler_ipi();
>  			kfree(msg);
>  			break;
>  		case BFIN_IPI_CALL_FUNC:
> @@ -301,7 +302,7 @@ void smp_send_reschedule(int cpu)
>  
>  	msg = kzalloc(sizeof(*msg), GFP_ATOMIC);
>  	if (!msg)
> -		return;
> +		return; /* XXX unreliable needs fixing ! */
>  	INIT_LIST_HEAD(&msg->list);
>  	msg->type = BFIN_IPI_RESCHEDULE;
>  
> diff --git a/arch/cris/arch-v32/kernel/smp.c b/arch/cris/arch-v32/kernel/smp.c
> index 84fed3b..86e3c76 100644
> --- a/arch/cris/arch-v32/kernel/smp.c
> +++ b/arch/cris/arch-v32/kernel/smp.c
> @@ -340,15 +340,18 @@ irqreturn_t crisv32_ipi_interrupt(int irq, void *dev_id)
>  
>  	ipi = REG_RD(intr_vect, irq_regs[smp_processor_id()], rw_ipi);
>  
> +	if (ipi.vector & IPI_SCHEDULE) {
> +		scheduler_ipi();
> +	}
>  	if (ipi.vector & IPI_CALL) {
> -	         func(info);
> +		func(info);
>  	}
>  	if (ipi.vector & IPI_FLUSH_TLB) {
> -		     if (flush_mm == FLUSH_ALL)
> -			 __flush_tlb_all();
> -		     else if (flush_vma == FLUSH_ALL)
> +		if (flush_mm == FLUSH_ALL)
> +			__flush_tlb_all();
> +		else if (flush_vma == FLUSH_ALL)
>  			__flush_tlb_mm(flush_mm);
> -		     else
> +		else
>  			__flush_tlb_page(flush_vma, flush_addr);
>  	}
>  
> diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
> index 9a26015..a580230 100644
> --- a/arch/ia64/kernel/irq_ia64.c
> +++ b/arch/ia64/kernel/irq_ia64.c
> @@ -31,6 +31,7 @@
>  #include <linux/irq.h>
>  #include <linux/ratelimit.h>
>  #include <linux/acpi.h>
> +#include <linux/sched.h>
>  
>  #include <asm/delay.h>
>  #include <asm/intrinsics.h>
> @@ -496,6 +497,7 @@ ia64_handle_irq (ia64_vector vector, struct pt_regs *regs)
>  			smp_local_flush_tlb();
>  			kstat_incr_irqs_this_cpu(irq, desc);
>  		} else if (unlikely(IS_RESCHEDULE(vector))) {
> +			scheduler_ipi();
>  			kstat_incr_irqs_this_cpu(irq, desc);
>  		} else {
>  			ia64_setreg(_IA64_REG_CR_TPR, vector);
> diff --git a/arch/ia64/xen/irq_xen.c b/arch/ia64/xen/irq_xen.c
> index a3fb7cf..2f235a3 100644
> --- a/arch/ia64/xen/irq_xen.c
> +++ b/arch/ia64/xen/irq_xen.c
> @@ -92,6 +92,8 @@ static unsigned short saved_irq_cnt;
>  static int xen_slab_ready;
>  
>  #ifdef CONFIG_SMP
> +#include <linux/sched.h>
> +
>  /* Dummy stub. Though we may check XEN_RESCHEDULE_VECTOR before __do_IRQ,
>   * it ends up to issue several memory accesses upon percpu data and
>   * thus adds unnecessary traffic to other paths.
> @@ -99,7 +101,13 @@ static int xen_slab_ready;
>  static irqreturn_t
>  xen_dummy_handler(int irq, void *dev_id)
>  {
> +	return IRQ_HANDLED;
> +}
>  
> +static irqreturn_t
> +xen_resched_handler(int irq, void *dev_id)
> +{
> +	scheduler_ipi();
>  	return IRQ_HANDLED;
>  }
>  
> @@ -110,7 +118,7 @@ static struct irqaction xen_ipi_irqaction = {
>  };
>  
>  static struct irqaction xen_resched_irqaction = {
> -	.handler =	xen_dummy_handler,
> +	.handler =	xen_resched_handler,
>  	.flags =	IRQF_DISABLED,
>  	.name =		"resched"
>  };
> diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c
> index 31cef20..f0ecc3f 100644
> --- a/arch/m32r/kernel/smp.c
> +++ b/arch/m32r/kernel/smp.c
> @@ -138,7 +138,7 @@ void smp_send_reschedule(int cpu_id)
>   *==========================================================================*/
>  void smp_reschedule_interrupt(void)
>  {
> -	/* nothing to do */
> +	scheduler_ipi();
>  }
>  
>  /*==========================================================================*
> diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
> index 39c0825..0443e91 100644
> --- a/arch/mips/kernel/smtc.c
> +++ b/arch/mips/kernel/smtc.c
> @@ -931,6 +931,7 @@ static void post_direct_ipi(int cpu, struct smtc_ipi *pipi)
>  static void ipi_resched_interrupt(void)
>  {
>  	/* Return from interrupt should be enough to cause scheduler check */
> +	scheduler_ipi();
>  }
>  
>  static void ipi_call_interrupt(void)
> diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c
> index 47b347c..513a301 100644
> --- a/arch/mips/sibyte/bcm1480/smp.c
> +++ b/arch/mips/sibyte/bcm1480/smp.c
> @@ -20,6 +20,7 @@
>  #include <linux/delay.h>
>  #include <linux/smp.h>
>  #include <linux/kernel_stat.h>
> +#include <linux/sched.h>
>  
>  #include <asm/mmu_context.h>
>  #include <asm/io.h>
> @@ -189,10 +190,8 @@ void bcm1480_mailbox_interrupt(void)
>  	/* Clear the mailbox to clear the interrupt */
>  	__raw_writeq(((u64)action)<<48, mailbox_0_clear_regs[cpu]);
>  
> -	/*
> -	 * Nothing to do for SMP_RESCHEDULE_YOURSELF; returning from the
> -	 * interrupt will do the reschedule for us
> -	 */
> +	if (actione & SMP_RESCHEDULE_YOURSELF)
> +		scheduler_ipi();
>  
>  	if (action & SMP_CALL_FUNCTION)
>  		smp_call_function_interrupt();
> diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c
> index c00a5cb..38e7f6b 100644
> --- a/arch/mips/sibyte/sb1250/smp.c
> +++ b/arch/mips/sibyte/sb1250/smp.c
> @@ -21,6 +21,7 @@
>  #include <linux/interrupt.h>
>  #include <linux/smp.h>
>  #include <linux/kernel_stat.h>
> +#include <linux/sched.h>
>  
>  #include <asm/mmu_context.h>
>  #include <asm/io.h>
> @@ -177,10 +178,8 @@ void sb1250_mailbox_interrupt(void)
>  	/* Clear the mailbox to clear the interrupt */
>  	____raw_writeq(((u64)action) << 48, mailbox_clear_regs[cpu]);
>  
> -	/*
> -	 * Nothing to do for SMP_RESCHEDULE_YOURSELF; returning from the
> -	 * interrupt will do the reschedule for us
> -	 */
> +	if (action & SMP_RESCHEDULE_YOURSELF)
> +		scheduler_ipi();
>  
>  	if (action & SMP_CALL_FUNCTION)
>  		smp_call_function_interrupt();
> diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
> index 0dcd1c6..17f16ca 100644
> --- a/arch/mn10300/kernel/smp.c
> +++ b/arch/mn10300/kernel/smp.c
> @@ -471,7 +471,7 @@ void smp_send_stop(void)
>   */
>  static irqreturn_t smp_reschedule_interrupt(int irq, void *dev_id)
>  {
> -	/* do nothing */
> +	scheduler_ipi();
>  	return IRQ_HANDLED;
>  }
>  
> diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
> index 69d63d3..f8f7970 100644
> --- a/arch/parisc/kernel/smp.c
> +++ b/arch/parisc/kernel/smp.c
> @@ -155,6 +155,7 @@ ipi_interrupt(int irq, void *dev_id)
>  				
>  			case IPI_RESCHEDULE:
>  				smp_debug(100, KERN_DEBUG "CPU%d IPI_RESCHEDULE\n", this_cpu);
> +				scheduler_ipi();
>  				/*
>  				 * Reschedule callback.  Everything to be
>  				 * done is done by the interrupt return path.
> diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
> index 68034bb..7ee0fc3 100644
> --- a/arch/powerpc/kernel/smp.c
> +++ b/arch/powerpc/kernel/smp.c
> @@ -128,6 +128,7 @@ static irqreturn_t call_function_action(int irq, void *data)
>  static irqreturn_t reschedule_action(int irq, void *data)
>  {
>  	/* we just need the return path side effect of checking need_resched */
> +	scheduler_ipi();
>  	return IRQ_HANDLED;
>  }
>  
> diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
> index 94cf510..61789e8 100644
> --- a/arch/s390/kernel/smp.c
> +++ b/arch/s390/kernel/smp.c
> @@ -163,12 +163,12 @@ static void do_ext_call_interrupt(unsigned int ext_int_code,
>  
>  	/*
>  	 * handle bit signal external calls
> -	 *
> -	 * For the ec_schedule signal we have to do nothing. All the work
> -	 * is done automatically when we return from the interrupt.
>  	 */
>  	bits = xchg(&S390_lowcore.ext_call_fast, 0);
>  
> +	if (test_bit(ec_schedule, &bits))
> +		scheduler_ipi();
> +
>  	if (test_bit(ec_call_function, &bits))
>  		generic_smp_call_function_interrupt();
>  
> diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
> index 509b36b..6207561 100644
> --- a/arch/sh/kernel/smp.c
> +++ b/arch/sh/kernel/smp.c
> @@ -20,6 +20,7 @@
>  #include <linux/module.h>
>  #include <linux/cpu.h>
>  #include <linux/interrupt.h>
> +#include <linux/sched.h>
>  #include <asm/atomic.h>
>  #include <asm/processor.h>
>  #include <asm/system.h>
> @@ -323,6 +324,7 @@ void smp_message_recv(unsigned int msg)
>  		generic_smp_call_function_interrupt();
>  		break;
>  	case SMP_MSG_RESCHEDULE:
> +		scheduler_ipi();
>  		break;
>  	case SMP_MSG_FUNCTION_SINGLE:
>  		generic_smp_call_function_single_interrupt();
> diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c
> index 91c10fb..042d8c9 100644
> --- a/arch/sparc/kernel/smp_32.c
> +++ b/arch/sparc/kernel/smp_32.c
> @@ -125,7 +125,7 @@ struct linux_prom_registers smp_penguin_ctable __cpuinitdata = { 0 };
>  
>  void smp_send_reschedule(int cpu)
>  {
> -	/* See sparc64 */
> +	scheduler_ipi();
>  }
>  
>  void smp_send_stop(void)
> diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
> index b6a2b8f..68e26e2 100644
> --- a/arch/sparc/kernel/smp_64.c
> +++ b/arch/sparc/kernel/smp_64.c
> @@ -1369,6 +1369,7 @@ void smp_send_reschedule(int cpu)
>  void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs)
>  {
>  	clear_softint(1 << irq);
> +	scheduler_ipi();
>  }
>  
>  /* This is a nop because we capture all other cpus
> diff --git a/arch/tile/kernel/smp.c b/arch/tile/kernel/smp.c
> index 9575b37..91a1ddf 100644
> --- a/arch/tile/kernel/smp.c
> +++ b/arch/tile/kernel/smp.c
> @@ -190,6 +190,7 @@ static irqreturn_t handle_reschedule_ipi(int irq, void *token)
>  	 * profiler count in the meantime.
>  	 */
>  	__get_cpu_var(irq_stat).irq_resched_count++;
> +	scheduler_ipi();
>  
>  	return IRQ_HANDLED;
>  }
> diff --git a/arch/um/kernel/smp.c b/arch/um/kernel/smp.c
> index 106bf27..eefb107 100644
> --- a/arch/um/kernel/smp.c
> +++ b/arch/um/kernel/smp.c
> @@ -173,7 +173,7 @@ void IPI_handler(int cpu)
>  			break;
>  
>  		case 'R':
> -			set_tsk_need_resched(current);
> +			scheduler_ipi();
>  			break;
>  
>  		case 'S':
> diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
> index 513deac..e38c2d8 100644
> --- a/arch/x86/kernel/smp.c
> +++ b/arch/x86/kernel/smp.c
> @@ -202,6 +202,7 @@ void smp_reschedule_interrupt(struct pt_regs *regs)
>  {
>  	ack_APIC_irq();
>  	inc_irq_stat(irq_resched_count);
> +	scheduler_ipi();
>  	/*
>  	 * KVM uses this interrupt to force a cpu out of guest mode
>  	 */
> diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
> index 72a4c79..6196fb1 100644
> --- a/arch/x86/xen/smp.c
> +++ b/arch/x86/xen/smp.c
> @@ -53,6 +53,7 @@ static irqreturn_t xen_call_function_single_interrupt(int irq, void *dev_id);
>  static irqreturn_t xen_reschedule_interrupt(int irq, void *dev_id)
>  {
>  	inc_irq_stat(irq_resched_count);
> +	scheduler_ipi();
>  
>  	return IRQ_HANDLED;
>  }
> diff --git a/include/linux/sched.h b/include/linux/sched.h
> index 341acbb..aa458dc 100644
> --- a/include/linux/sched.h
> +++ b/include/linux/sched.h
> @@ -2183,6 +2183,7 @@ extern void set_task_comm(struct task_struct *tsk, char *from);
>  extern char *get_task_comm(char *to, struct task_struct *tsk);
>  
>  #ifdef CONFIG_SMP
> +static inline void scheduler_ipi(void) { }
>  extern unsigned long wait_task_inactive(struct task_struct *, long match_state);
>  #else
>  static inline unsigned long wait_task_inactive(struct task_struct *p,

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Subject: Re: [PATCH] sched: provide scheduler_ipi()
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On Tue, 2011-01-18 at 07:31 +1100, Benjamin Herrenschmidt wrote:
> 
> Beware of false positive, I've used "fake" reschedule IPIs in the past
> for other things (like kicking a CPU out of sleep state for unrelated
> reasons). Nothing that I know that is upstream today but some of that
> might come back. I'd like to avoid having to add an atomic to know if
> it's a real reschedule, will the scheduler be smart enough to not bother
> with false positives ? 

Yes it can deal with that, some will be for reschedules, some will be
for ttwu tail ends and x86 too uses this ipi for a few random other
things like kicking kvm out of guest context..

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc fixes for 2.6.38-rc1
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Cc: Parisc List <linux-parisc@vger.kernel.org>,
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This is just a couple of minor parisc specific fixes.  One for a console
line wrap issue and the other for the transparent hugepages compile
failure.  We've run these through our usual build and boot checks.

The patches are here:

master.kernel.org:/pub/scm/linux/kernel/git/jejb/parisc-2.6.git#fixes

The short changelog is:

Guy Martin (1):
      parisc : Remove broken line wrapping handling pdc_iodc_print()

James Bottomley (1):
      parisc: fix compile breakage caused by inlining maybe_mkwrite

And the diffstat:

 arch/parisc/include/asm/pgtable.h |    4 +++-
 arch/parisc/kernel/firmware.c     |   13 +------------
 2 files changed, 4 insertions(+), 13 deletions(-)

Full diffs are below.

James

---

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 865f37a..6f1f65d 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -10,11 +10,13 @@
  * we simulate an x86-style page table for the linux mm code
  */
 
-#include <linux/mm.h>		/* for vm_area_struct */
 #include <linux/bitops.h>
+#include <linux/spinlock.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
+struct vm_area_struct;
+
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index df971fa..4896ed0 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1126,15 +1126,13 @@ int pdc_iodc_print(const unsigned char *str, unsigned count)
 	unsigned int i;
 	unsigned long flags;
 
-	for (i = 0; i < count && i < 79;) {
+	for (i = 0; i < count;) {
 		switch(str[i]) {
 		case '\n':
 			iodc_dbuf[i+0] = '\r';
 			iodc_dbuf[i+1] = '\n';
 			i += 2;
 			goto print;
-		case '\b':	/* BS */
-			i--; /* overwrite last */
 		default:
 			iodc_dbuf[i] = str[i];
 			i++;
@@ -1142,15 +1140,6 @@ int pdc_iodc_print(const unsigned char *str, unsigned count)
 		}
 	}
 
-	/* if we're at the end of line, and not already inserting a newline,
-	 * insert one anyway. iodc console doesn't claim to support >79 char
-	 * lines. don't account for this in the return value.
-	 */
-	if (i == 79 && iodc_dbuf[i-1] != '\n') {
-		iodc_dbuf[i+0] = '\r';
-		iodc_dbuf[i+1] = '\n';
-	}

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From: Greg KH <gregkh@suse.de>
Newsgroups: gmane.linux.kernel.virtualization,gmane.comp.emulators.xen.devel,gmane.linux.ports.parisc,gmane.linux.ports.geode,gmane.linux.ports.arm.omap,gmane.linux.ports.arm.kernel,gmane.comp.video.dri.devel,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] change acquire/release_console_sem() to
	console_lock/unlock()
Date: Thu, 20 Jan 2011 08:34:48 -0800
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Cc: xen-devel@lists.xensource.com, Kees Cook <kees.cook@canonical.com>,
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To: Torben Hohn <torbenh@gmx.de>
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On Thu, Jan 20, 2011 at 04:58:13PM +0100, Torben Hohn wrote:
> the -rt patches change the console_semaphore to console_mutex.
> so a quite large chunk of the patches changes all
> acquire/release_console_sem() to acquire/release_console_mutex()

Why not just change the functionality of the existing function to be a
mutex in the rt patches, instead of having to rename it everywhere?

> this commit makes things use more neutral function names
> which dont make implications about the underlying lock.
> 
> the only real change is the return value of console_trylock
> which is inverted from try_acquire_console_sem()
> 
> Signed-off-by: Torben Hohn <torbenh@gmx.de>
> CC: Thomas Gleixner <tglx@tglx.de>

I don't mind this rename, but is it really going to help anything out?
What's the odds of the -rt portion of this patch ever making it to
mainline?

thanks,

greg k-h

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From: Torben Hohn <torbenh@gmx.de>
Newsgroups: gmane.comp.video.dri.devel,gmane.linux.kernel,gmane.comp.emulators.xen.devel,gmane.linux.ports.parisc,gmane.linux.ports.geode,gmane.linux.ports.arm.omap,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH] change acquire/release_console_sem() to console_lock/unlock()
Date: Thu, 20 Jan 2011 16:58:13 +0100
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Cc: xen-devel@lists.xensource.com, Kees Cook <kees.cook@canonical.com>,
	linux-fbdev@vger.kernel.org,
	Mark Brown <broonie@opensource.wolfsonmicro.com>,
	Sascha Hauer <s.hauer@pengutronix.de>, James Hogan <james@albanarts.com>,
	James Morris <jmorris@namei.org>, Grant Likely <grant.likely@secretlab.ca>,
	Paul Mackerras <paulus@samba.org>, linux-parisc@vger.kernel.org,
	Jiri Slaby <jslaby@suse.cz>, Dan Williams <dan.j.williams@intel.com>,
	linux-geode@lists.infradead.org, devel@driverdev.osuosl.org,
	Guy Martin <gmsoft@tuxicoman.be>,
	Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
	Russell King <linux@arm.linux.org.uk>, Thomas Gleixner <tglx@tglx.de>,
	Wu Zhangjin <wuzhangjin@gmail.com>,
	Florian Tobias Schandinat <FlorianSchandinat@gmx.de>,
	Lionel Debroux <lionel_debroux@yahoo.fr>,
	Helge Deller <deller@gmx.de>, Kay Sievers <
To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.comp.video.dri.devel/53599>

the -rt patches change the console_semaphore to console_mutex.
so a quite large chunk of the patches changes all
acquire/release_console_sem() to acquire/release_console_mutex()

this commit makes things use more neutral function names
which dont make implications about the underlying lock.

the only real change is the return value of console_trylock
which is inverted from try_acquire_console_sem()

Signed-off-by: Torben Hohn <torbenh@gmx.de>
CC: Thomas Gleixner <tglx@tglx.de>
---
 arch/arm/mach-omap2/pm24xx.c           |    4 +-
 arch/arm/mach-omap2/pm34xx.c           |    4 +-
 arch/arm/mach-omap2/serial.c           |    4 +-
 arch/parisc/kernel/pdc_cons.c          |    4 +-
 drivers/char/bfin_jtag_comm.c          |    8 +-
 drivers/gpu/drm/nouveau/nouveau_drv.c  |    8 +-
 drivers/gpu/drm/radeon/radeon_device.c |   10 ++--
 drivers/serial/sb1250-duart.c          |    2 +-
 drivers/staging/msm/msm_fb.c           |    8 +-
 drivers/staging/olpc_dcon/olpc_dcon.c  |   10 ++--
 drivers/staging/sm7xx/smtcfb.c         |    8 +-
 drivers/tty/tty_io.c                   |    4 +-
 drivers/tty/vt/selection.c             |    4 +-
 drivers/tty/vt/vc_screen.c             |   16 ++--
 drivers/tty/vt/vt.c                    |  124 ++++++++++++++++----------------
 drivers/tty/vt/vt_ioctl.c              |   60 ++++++++--------
 drivers/video/arkfb.c                  |   12 ++--
 drivers/video/aty/aty128fb.c           |   12 ++--
 drivers/video/aty/atyfb_base.c         |   10 ++--
 drivers/video/aty/radeon_pm.c          |   10 ++--
 drivers/video/chipsfb.c                |    8 +-
 drivers/video/console/fbcon.c          |   42 ++++++------
 drivers/video/da8xx-fb.c               |    8 +-
 drivers/video/fbmem.c                  |   12 ++--
 drivers/video/fbsysfs.c                |   20 +++---
 drivers/video/geode/gxfb_core.c        |    8 +-
 drivers/video/geode/lxfb_core.c        |    8 +-
 drivers/video/i810/i810_main.c         |    8 +-
 drivers/video/jz4740_fb.c              |    8 +-
 drivers/video/mx3fb.c                  |    8 +-
 drivers/video/nvidia/nvidia.c          |    8 +-
 drivers/video/ps3fb.c                  |   16 ++--
 drivers/video/s3fb.c                   |   16 ++--
 drivers/video/savage/savagefb_driver.c |    8 +-
 drivers/video/sh_mobile_hdmi.c         |    8 +-
 drivers/video/sh_mobile_lcdcfb.c       |    4 +-
 drivers/video/sm501fb.c                |    8 +-
 drivers/video/tmiofb.c                 |   10 ++--
 drivers/video/via/viafbdev.c           |    8 +-
 drivers/video/vt8623fb.c               |   12 ++--
 drivers/video/xen-fbfront.c            |    4 +-
 fs/proc/consoles.c                     |    4 +-
 include/linux/console.h                |    6 +-
 kernel/printk.c                        |  100 ++++++++++++++------------
 44 files changed, 336 insertions(+), 328 deletions(-)

diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index 9e5dc8e..97feb3a 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -134,7 +134,7 @@ static void omap2_enter_full_retention(void)
 
 	/* Block console output in case it is on one of the OMAP UARTs */
 	if (!is_suspending())
-		if (try_acquire_console_sem())
+		if (!console_trylock())
 			goto no_sleep;
 
 	omap_uart_prepare_idle(0);
@@ -151,7 +151,7 @@ static void omap2_enter_full_retention(void)
 	omap_uart_resume_idle(0);
 
 	if (!is_suspending())
-		release_console_sem();
+		console_unlock();
 
 no_sleep:
 	if (omap2_pm_debug) {
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 8cbbead..a4aa192 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -398,7 +398,7 @@ void omap_sram_idle(void)
 	if (!is_suspending())
 		if (per_next_state < PWRDM_POWER_ON ||
 		    core_next_state < PWRDM_POWER_ON)
-			if (try_acquire_console_sem())
+			if (!console_trylock())
 				goto console_still_active;
 
 	/* PER */
@@ -481,7 +481,7 @@ void omap_sram_idle(void)
 	}
 
 	if (!is_suspending())
-		release_console_sem();
+		console_unlock();
 
 console_still_active:
 	/* Disable IO-PAD and IO-CHAIN wakeup */
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index 302da74..32e91a9 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -812,7 +812,7 @@ void __init omap_serial_init_port(struct omap_board_data *bdata)
 
 	oh->dev_attr = uart;
 
-	acquire_console_sem(); /* in case the earlycon is on the UART */
+	console_lock(); /* in case the earlycon is on the UART */
 
 	/*
 	 * Because of early UART probing, UART did not get idled
@@ -838,7 +838,7 @@ void __init omap_serial_init_port(struct omap_board_data *bdata)
 	omap_uart_block_sleep(uart);
 	uart->timeout = DEFAULT_TIMEOUT;
 
-	release_console_sem();
+	console_unlock();
 
 	if ((cpu_is_omap34xx() && uart->padconf) ||
 	    (uart->wk_en && uart->wk_mask)) {
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 11bdd68..fc770be 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -169,11 +169,11 @@ static int __init pdc_console_tty_driver_init(void)
 
 	struct console *tmp;
 
-	acquire_console_sem();
+	console_lock();
 	for_each_console(tmp)
 		if (tmp == &pdc_cons)
 			break;
-	release_console_sem();
+	console_unlock();
 
 	if (!tmp) {
 		printk(KERN_INFO "PDC console driver not registered anymore, not creating %s\n", pdc_cons.name);
diff --git a/drivers/char/bfin_jtag_comm.c b/drivers/char/bfin_jtag_comm.c
index e397df3..1640244 100644
--- a/drivers/char/bfin_jtag_comm.c
+++ b/drivers/char/bfin_jtag_comm.c
@@ -183,16 +183,16 @@ bfin_jc_circ_write(const unsigned char *buf, int count)
 }
 
 #ifndef CONFIG_BFIN_JTAG_COMM_CONSOLE
-# define acquire_console_sem()
-# define release_console_sem()
+# define console_lock()
+# define console_unlock()
 #endif
 static int
 bfin_jc_write(struct tty_struct *tty, const unsigned char *buf, int count)
 {
 	int i;
-	acquire_console_sem();
+	console_lock();
 	i = bfin_jc_circ_write(buf, count);
-	release_console_sem();
+	console_unlock();
 	wake_up_process(bfin_jc_kthread);
 	return i;
 }
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.c b/drivers/gpu/drm/nouveau/nouveau_drv.c
index 13bb672..f658a04 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.c
@@ -234,9 +234,9 @@ nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state)
 		pci_set_power_state(pdev, PCI_D3hot);
 	}
 
-	acquire_console_sem();
+	console_lock();
 	nouveau_fbcon_set_suspend(dev, 1);
-	release_console_sem();
+	console_unlock();
 	nouveau_fbcon_restore_accel(dev);
 	return 0;
 
@@ -359,9 +359,9 @@ nouveau_pci_resume(struct pci_dev *pdev)
 		nv_crtc->lut.depth = 0;
 	}
 
-	acquire_console_sem();
+	console_lock();
 	nouveau_fbcon_set_suspend(dev, 0);
-	release_console_sem();
+	console_unlock();
 
 	nouveau_fbcon_zfill_all(dev);
 
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 26091d6..0d47893 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -891,9 +891,9 @@ int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
 		pci_disable_device(dev->pdev);
 		pci_set_power_state(dev->pdev, PCI_D3hot);
 	}
-	acquire_console_sem();
+	console_lock();
 	radeon_fbdev_set_suspend(rdev, 1);
-	release_console_sem();
+	console_unlock();
 	return 0;
 }
 
@@ -905,11 +905,11 @@ int radeon_resume_kms(struct drm_device *dev)
 	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
 
-	acquire_console_sem();
+	console_lock();
 	pci_set_power_state(dev->pdev, PCI_D0);
 	pci_restore_state(dev->pdev);
 	if (pci_enable_device(dev->pdev)) {
-		release_console_sem();
+		console_unlock();
 		return -1;
 	}
 	pci_set_master(dev->pdev);
@@ -920,7 +920,7 @@ int radeon_resume_kms(struct drm_device *dev)
 	radeon_restore_bios_scratch_regs(rdev);
 
 	radeon_fbdev_set_suspend(rdev, 0);
-	release_console_sem();
+	console_unlock();
 
 	/* reset hpd state */
 	radeon_hpd_init(rdev);
diff --git a/drivers/serial/sb1250-duart.c b/drivers/serial/sb1250-duart.c
index a2f2b32..602d984 100644
--- a/drivers/serial/sb1250-duart.c
+++ b/drivers/serial/sb1250-duart.c
@@ -829,7 +829,7 @@ static void __init sbd_probe_duarts(void)
 #ifdef CONFIG_SERIAL_SB1250_DUART_CONSOLE
 /*
  * Serial console stuff.  Very basic, polling driver for doing serial
- * console output.  The console_sem is held by the caller, so we
+ * console output.  The console_lock is held by the caller, so we
  * shouldn't be interrupted for more console activity.
  */
 static void sbd_console_putchar(struct uart_port *uport, int ch)
diff --git a/drivers/staging/msm/msm_fb.c b/drivers/staging/msm/msm_fb.c
index 23fa049..a2f29d4 100644
--- a/drivers/staging/msm/msm_fb.c
+++ b/drivers/staging/msm/msm_fb.c
@@ -347,7 +347,7 @@ static int msm_fb_suspend(struct platform_device *pdev, pm_message_t state)
 	if ((!mfd) || (mfd->key != MFD_KEY))
 		return 0;
 
-	acquire_console_sem();
+	console_lock();
 	fb_set_suspend(mfd->fbi, 1);
 
 	ret = msm_fb_suspend_sub(mfd);
@@ -358,7 +358,7 @@ static int msm_fb_suspend(struct platform_device *pdev, pm_message_t state)
 		pdev->dev.power.power_state = state;
 	}
 
-	release_console_sem();
+	console_unlock();
 	return ret;
 }
 #else
@@ -431,11 +431,11 @@ static int msm_fb_resume(struct platform_device *pdev)
 	if ((!mfd) || (mfd->key != MFD_KEY))
 		return 0;
 
-	acquire_console_sem();
+	console_lock();
 	ret = msm_fb_resume_sub(mfd);
 	pdev->dev.power.power_state = PMSG_ON;
 	fb_set_suspend(mfd->fbi, 1);
-	release_console_sem();
+	console_unlock();
 
 	return ret;
 }
diff --git a/drivers/staging/olpc_dcon/olpc_dcon.c b/drivers/staging/olpc_dcon/olpc_dcon.c
index 9f26dc9..56a283d 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon.c
+++ b/drivers/staging/olpc_dcon/olpc_dcon.c
@@ -373,17 +373,17 @@ static void dcon_source_switch(struct work_struct *work)
 		 *
 		 * For now, we just hope..
 		 */
-		acquire_console_sem();
+		console_lock();
 		ignore_fb_events = 1;
 		if (fb_blank(fbinfo, FB_BLANK_UNBLANK)) {
 			ignore_fb_events = 0;
-			release_console_sem();
+			console_unlock();
 			printk(KERN_ERR "olpc-dcon:  Failed to enter CPU mode\n");
 			dcon_pending = DCON_SOURCE_DCON;
 			return;
 		}
 		ignore_fb_events = 0;
-		release_console_sem();
+		console_unlock();
 
 		/* And turn off the DCON */
 		pdata->set_dconload(1);
@@ -435,12 +435,12 @@ static void dcon_source_switch(struct work_struct *work)
 			}
 		}
 
-		acquire_console_sem();
+		console_lock();
 		ignore_fb_events = 1;
 		if (fb_blank(fbinfo, FB_BLANK_POWERDOWN))
 			printk(KERN_ERR "olpc-dcon:  couldn't blank fb!\n");
 		ignore_fb_events = 0;
-		release_console_sem();
+		console_unlock();
 
 		printk(KERN_INFO "olpc-dcon: The DCON has control\n");
 		break;
diff --git a/drivers/staging/sm7xx/smtcfb.c b/drivers/staging/sm7xx/smtcfb.c
index 0bc113c..d007e4a 100644
--- a/drivers/staging/sm7xx/smtcfb.c
+++ b/drivers/staging/sm7xx/smtcfb.c
@@ -1044,9 +1044,9 @@ static int __maybe_unused smtcfb_suspend(struct pci_dev *pdev, pm_message_t msg)
 
 	/* when doing suspend, call fb apis and pci apis */
 	if (msg.event == PM_EVENT_SUSPEND) {
-		acquire_console_sem();
+		console_lock();
 		fb_set_suspend(&sfb->fb, 1);
-		release_console_sem();
+		console_unlock();
 		retv = pci_save_state(pdev);
 		pci_disable_device(pdev);
 		retv = pci_choose_state(pdev, msg);
@@ -1105,9 +1105,9 @@ static int __maybe_unused smtcfb_resume(struct pci_dev *pdev)
 
 	smtcfb_setmode(sfb);
 
-	acquire_console_sem();
+	console_lock();
 	fb_set_suspend(&sfb->fb, 0);
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 464d09d..6158eae 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -3256,7 +3256,7 @@ static ssize_t show_cons_active(struct device *dev,
 	struct console *c;
 	ssize_t count = 0;
 
-	acquire_console_sem();
+	console_lock();
 	for (c = console_drivers; c; c = c->next) {
 		if (!c->device)
 			continue;
@@ -3271,7 +3271,7 @@ static ssize_t show_cons_active(struct device *dev,
 	while (i--)
 		count += sprintf(buf + count, "%s%d%c",
 				 cs[i]->name, cs[i]->index, i ? ' ':'\n');
-	release_console_sem();
+	console_unlock();
 
 	return count;
 }
diff --git a/drivers/tty/vt/selection.c b/drivers/tty/vt/selection.c
index ebae344..c956ed6 100644
--- a/drivers/tty/vt/selection.c
+++ b/drivers/tty/vt/selection.c
@@ -316,9 +316,9 @@ int paste_selection(struct tty_struct *tty)
 	/* always called with BTM from vt_ioctl */
 	WARN_ON(!tty_locked());
 
-	acquire_console_sem();
+	console_lock();
 	poke_blanked_console();
-	release_console_sem();
+	console_unlock();
 
 	ld = tty_ldisc_ref(tty);
 	if (!ld) {
diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c
index eab3a1f..a672ed1 100644
--- a/drivers/tty/vt/vc_screen.c
+++ b/drivers/tty/vt/vc_screen.c
@@ -202,7 +202,7 @@ vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 	/* Select the proper current console and verify
 	 * sanity of the situation under the console lock.
 	 */
-	acquire_console_sem();
+	console_lock();
 
 	attr = (currcons & 128);
 	currcons = (currcons & 127);
@@ -336,9 +336,9 @@ vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 		 * the pagefault handling code may want to call printk().
 		 */
 
-		release_console_sem();
+		console_unlock();
 		ret = copy_to_user(buf, con_buf_start, orig_count);
-		acquire_console_sem();
+		console_lock();
 
 		if (ret) {
 			read += (orig_count - ret);
@@ -354,7 +354,7 @@ vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 	if (read)
 		ret = read;
 unlock_out:
-	release_console_sem();
+	console_unlock();
 	mutex_unlock(&con_buf_mtx);
 	return ret;
 }
@@ -379,7 +379,7 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
 	/* Select the proper current console and verify
 	 * sanity of the situation under the console lock.
 	 */
-	acquire_console_sem();
+	console_lock();
 
 	attr = (currcons & 128);
 	currcons = (currcons & 127);
@@ -414,9 +414,9 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
 		/* Temporarily drop the console lock so that we can read
 		 * in the write data from userspace safely.
 		 */
-		release_console_sem();
+		console_unlock();
 		ret = copy_from_user(con_buf, buf, this_round);
-		acquire_console_sem();
+		console_lock();
 
 		if (ret) {
 			this_round -= ret;
@@ -542,7 +542,7 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
 		vcs_scr_updated(vc);
 
 unlock_out:
-	release_console_sem();
+	console_unlock();
 
 	mutex_unlock(&con_buf_mtx);
 
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 76407ec..b230bd3 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1003,9 +1003,9 @@ static int vt_resize(struct tty_struct *tty, struct winsize *ws)
 	struct vc_data *vc = tty->driver_data;
 	int ret;
 
-	acquire_console_sem();
+	console_lock();
 	ret = vc_do_resize(tty, vc, ws->ws_col, ws->ws_row);
-	release_console_sem();
+	console_unlock();
 	return ret;
 }
 
@@ -1271,7 +1271,7 @@ static void default_attr(struct vc_data *vc)
 	vc->vc_color = vc->vc_def_color;
 }
 
-/* console_sem is held */
+/* console_lock is held */
 static void csi_m(struct vc_data *vc)
 {
 	int i;
@@ -1415,7 +1415,7 @@ int mouse_reporting(void)
 	return vc_cons[fg_console].d->vc_report_mouse;
 }
 
-/* console_sem is held */
+/* console_lock is held */
 static void set_mode(struct vc_data *vc, int on_off)
 {
 	int i;
@@ -1485,7 +1485,7 @@ static void set_mode(struct vc_data *vc, int on_off)
 		}
 }
 
-/* console_sem is held */
+/* console_lock is held */
 static void setterm_command(struct vc_data *vc)
 {
 	switch(vc->vc_par[0]) {
@@ -1545,7 +1545,7 @@ static void setterm_command(struct vc_data *vc)
 	}
 }
 
-/* console_sem is held */
+/* console_lock is held */
 static void csi_at(struct vc_data *vc, unsigned int nr)
 {
 	if (nr > vc->vc_cols - vc->vc_x)
@@ -1555,7 +1555,7 @@ static void csi_at(struct vc_data *vc, unsigned int nr)
 	insert_char(vc, nr);
 }
 
-/* console_sem is held */
+/* console_lock is held */
 static void csi_L(struct vc_data *vc, unsigned int nr)
 {
 	if (nr > vc->vc_rows - vc->vc_y)
@@ -1566,7 +1566,7 @@ static void csi_L(struct vc_data *vc, unsigned int nr)
 	vc->vc_need_wrap = 0;
 }
 
-/* console_sem is held */
+/* console_lock is held */
 static void csi_P(struct vc_data *vc, unsigned int nr)
 {
 	if (nr > vc->vc_cols - vc->vc_x)
@@ -1576,7 +1576,7 @@ static void csi_P(struct vc_data *vc, unsigned int nr)
 	delete_char(vc, nr);
 }
 
-/* console_sem is held */
+/* console_lock is held */
 static void csi_M(struct vc_data *vc, unsigned int nr)
 {
 	if (nr > vc->vc_rows - vc->vc_y)
@@ -1587,7 +1587,7 @@ static void csi_M(struct vc_data *vc, unsigned int nr)
 	vc->vc_need_wrap = 0;
 }
 
-/* console_sem is held (except via vc_init->reset_terminal */
+/* console_lock is held (except via vc_init->reset_terminal */
 static void save_cur(struct vc_data *vc)
 {
 	vc->vc_saved_x		= vc->vc_x;
@@ -1603,7 +1603,7 @@ static void save_cur(struct vc_data *vc)
 	vc->vc_saved_G1		= vc->vc_G1_charset;
 }
 
-/* console_sem is held */
+/* console_lock is held */
 static void restore_cur(struct vc_data *vc)
 {
 	gotoxy(vc, vc->vc_saved_x, vc->vc_saved_y);
@@ -1625,7 +1625,7 @@ enum { ESnormal, ESesc, ESsquare, ESgetpars, ESgotpars, ESfunckey,
 	EShash, ESsetG0, ESsetG1, ESpercent, ESignore, ESnonstd,
 	ESpalette };
 
-/* console_sem is held (except via vc_init()) */
+/* console_lock is held (except via vc_init()) */
 static void reset_terminal(struct vc_data *vc, int do_clear)
 {
 	vc->vc_top		= 0;
@@ -1685,7 +1685,7 @@ static void reset_terminal(struct vc_data *vc, int do_clear)
 	    csi_J(vc, 2);
 }
 
-/* console_sem is held */
+/* console_lock is held */
 static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
 {
 	/*
@@ -2119,7 +2119,7 @@ static int is_double_width(uint32_t ucs)
 	return bisearch(ucs, double_width, ARRAY_SIZE(double_width) - 1);
 }
 
-/* acquires console_sem */
+/* acquires console_lock */
 static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int count)
 {
 #ifdef VT_BUF_VRAM_ONLY
@@ -2147,11 +2147,11 @@ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int co
 
 	might_sleep();
 
-	acquire_console_sem();
+	console_lock();
 	vc = tty->driver_data;
 	if (vc == NULL) {
 		printk(KERN_ERR "vt: argh, driver_data is NULL !\n");
-		release_console_sem();
+		console_unlock();
 		return 0;
 	}
 
@@ -2159,7 +2159,7 @@ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int co
 	if (!vc_cons_allocated(currcons)) {
 	    /* could this happen? */
 		printk_once("con_write: tty %d not allocated\n", currcons+1);
-	    release_console_sem();
+	    console_unlock();
 	    return 0;
 	}
 
@@ -2375,7 +2375,7 @@ rescan_last_byte:
 	}
 	FLUSH
 	console_conditional_schedule();
-	release_console_sem();
+	console_unlock();
 	notify_update(vc);
 	return n;
 #undef FLUSH
@@ -2388,11 +2388,11 @@ rescan_last_byte:
  * us to do the switches asynchronously (needed when we want
  * to switch due to a keyboard interrupt).  Synchronization
  * with other console code and prevention of re-entrancy is
- * ensured with console_sem.
+ * ensured with console_lock.
  */
 static void console_callback(struct work_struct *ignored)
 {
-	acquire_console_sem();
+	console_lock();
 
 	if (want_console >= 0) {
 		if (want_console != fg_console &&
@@ -2422,7 +2422,7 @@ static void console_callback(struct work_struct *ignored)
 	}
 	notify_update(vc_cons[fg_console].d);
 
-	release_console_sem();
+	console_unlock();
 }
 
 int set_console(int nr)
@@ -2603,7 +2603,7 @@ static struct console vt_console_driver = {
  */
 
 /*
- * Generally a bit racy with respect to console_sem().
+ * Generally a bit racy with respect to console_lock();.
  *
  * There are some functions which don't need it.
  *
@@ -2629,17 +2629,17 @@ int tioclinux(struct tty_struct *tty, unsigned long arg)
 	switch (type)
 	{
 		case TIOCL_SETSEL:
-			acquire_console_sem();
+			console_lock();
 			ret = set_selection((struct tiocl_selection __user *)(p+1), tty);
-			release_console_sem();
+			console_unlock();
 			break;
 		case TIOCL_PASTESEL:
 			ret = paste_selection(tty);
 			break;
 		case TIOCL_UNBLANKSCREEN:
-			acquire_console_sem();
+			console_lock();
 			unblank_screen();
-			release_console_sem();
+			console_unlock();
 			break;
 		case TIOCL_SELLOADLUT:
 			ret = sel_loadlut(p);
@@ -2688,10 +2688,10 @@ int tioclinux(struct tty_struct *tty, unsigned long arg)
 			}
 			break;
 		case TIOCL_BLANKSCREEN:	/* until explicitly unblanked, not only poked */
-			acquire_console_sem();
+			console_lock();
 			ignore_poke = 1;
 			do_blank_screen(0);
-			release_console_sem();
+			console_unlock();
 			break;
 		case TIOCL_BLANKEDSCREEN:
 			ret = console_blanked;
@@ -2790,11 +2790,11 @@ static void con_flush_chars(struct tty_struct *tty)
 		return;
 
 	/* if we race with con_close(), vt may be null */
-	acquire_console_sem();
+	console_lock();
 	vc = tty->driver_data;
 	if (vc)
 		set_cursor(vc);
-	release_console_sem();
+	console_unlock();
 }
 
 /*
@@ -2805,7 +2805,7 @@ static int con_open(struct tty_struct *tty, struct file *filp)
 	unsigned int currcons = tty->index;
 	int ret = 0;
 
-	acquire_console_sem();
+	console_lock();
 	if (tty->driver_data == NULL) {
 		ret = vc_allocate(currcons);
 		if (ret == 0) {
@@ -2813,7 +2813,7 @@ static int con_open(struct tty_struct *tty, struct file *filp)
 
 			/* Still being freed */
 			if (vc->port.tty) {
-				release_console_sem();
+				console_unlock();
 				return -ERESTARTSYS;
 			}
 			tty->driver_data = vc;
@@ -2827,11 +2827,11 @@ static int con_open(struct tty_struct *tty, struct file *filp)
 				tty->termios->c_iflag |= IUTF8;
 			else
 				tty->termios->c_iflag &= ~IUTF8;
-			release_console_sem();
+			console_unlock();
 			return ret;
 		}
 	}
-	release_console_sem();
+	console_unlock();
 	return ret;
 }
 
@@ -2844,9 +2844,9 @@ static void con_shutdown(struct tty_struct *tty)
 {
 	struct vc_data *vc = tty->driver_data;
 	BUG_ON(vc == NULL);
-	acquire_console_sem();
+	console_lock();
 	vc->port.tty = NULL;
-	release_console_sem();
+	console_unlock();
 	tty_shutdown(tty);
 }
 
@@ -2893,13 +2893,13 @@ static int __init con_init(void)
 	struct vc_data *vc;
 	unsigned int currcons = 0, i;
 
-	acquire_console_sem();
+	console_lock();
 
 	if (conswitchp)
 		display_desc = conswitchp->con_startup();
 	if (!display_desc) {
 		fg_console = 0;
-		release_console_sem();
+		console_unlock();
 		return 0;
 	}
 
@@ -2946,7 +2946,7 @@ static int __init con_init(void)
 	printable = 1;
 	printk("\n");
 
-	release_console_sem();
+	console_unlock();
 
 #ifdef CONFIG_VT_CONSOLE
 	register_console(&vt_console_driver);
@@ -3037,7 +3037,7 @@ static int bind_con_driver(const struct consw *csw, int first, int last,
 	if (!try_module_get(owner))
 		return -ENODEV;
 
-	acquire_console_sem();
+	console_lock();
 
 	/* check if driver is registered */
 	for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
@@ -3122,7 +3122,7 @@ static int bind_con_driver(const struct consw *csw, int first, int last,
 
 	retval = 0;
 err:
-	release_console_sem();
+	console_unlock();
 	module_put(owner);
 	return retval;
 };
@@ -3171,7 +3171,7 @@ int unbind_con_driver(const struct consw *csw, int first, int last, int deflt)
 	if (!try_module_get(owner))
 		return -ENODEV;
 
-	acquire_console_sem();
+	console_lock();
 
 	/* check if driver is registered and if it is unbindable */
 	for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
@@ -3185,7 +3185,7 @@ int unbind_con_driver(const struct consw *csw, int first, int last, int deflt)
 	}
 
 	if (retval) {
-		release_console_sem();
+		console_unlock();
 		goto err;
 	}
 
@@ -3204,12 +3204,12 @@ int unbind_con_driver(const struct consw *csw, int first, int last, int deflt)
 	}
 
 	if (retval) {
-		release_console_sem();
+		console_unlock();
 		goto err;
 	}
 
 	if (!con_is_bound(csw)) {
-		release_console_sem();
+		console_unlock();
 		goto err;
 	}
 
@@ -3238,7 +3238,7 @@ int unbind_con_driver(const struct consw *csw, int first, int last, int deflt)
 	if (!con_is_bound(csw))
 		con_driver->flag &= ~CON_DRIVER_FLAG_INIT;
 
-	release_console_sem();
+	console_unlock();
 	/* ignore return value, binding should not fail */
 	bind_con_driver(defcsw, first, last, deflt);
 err:
@@ -3538,7 +3538,7 @@ int register_con_driver(const struct consw *csw, int first, int last)
 	if (!try_module_get(owner))
 		return -ENODEV;
 
-	acquire_console_sem();
+	console_lock();
 
 	for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
 		con_driver = &registered_con_driver[i];
@@ -3592,7 +3592,7 @@ int register_con_driver(const struct consw *csw, int first, int last)
 	}
 
 err:
-	release_console_sem();
+	console_unlock();
 	module_put(owner);
 	return retval;
 }
@@ -3613,7 +3613,7 @@ int unregister_con_driver(const struct consw *csw)
 {
 	int i, retval = -ENODEV;
 
-	acquire_console_sem();
+	console_lock();
 
 	/* cannot unregister a bound driver */
 	if (con_is_bound(csw))
@@ -3639,7 +3639,7 @@ int unregister_con_driver(const struct consw *csw)
 		}
 	}
 err:
-	release_console_sem();
+	console_unlock();
 	return retval;
 }
 EXPORT_SYMBOL(unregister_con_driver);
@@ -3934,9 +3934,9 @@ int con_set_cmap(unsigned char __user *arg)
 {
 	int rc;
 
-	acquire_console_sem();
+	console_lock();
 	rc = set_get_cmap (arg,1);
-	release_console_sem();
+	console_unlock();
 
 	return rc;
 }
@@ -3945,9 +3945,9 @@ int con_get_cmap(unsigned char __user *arg)
 {
 	int rc;
 
-	acquire_console_sem();
+	console_lock();
 	rc = set_get_cmap (arg,0);
-	release_console_sem();
+	console_unlock();
 
 	return rc;
 }
@@ -3994,12 +3994,12 @@ static int con_font_get(struct vc_data *vc, struct console_font_op *op)
 	} else
 		font.data = NULL;
 
-	acquire_console_sem();
+	console_lock();
 	if (vc->vc_sw->con_font_get)
 		rc = vc->vc_sw->con_font_get(vc, &font);
 	else
 		rc = -ENOSYS;
-	release_console_sem();
+	console_unlock();
 
 	if (rc)
 		goto out;
@@ -4076,12 +4076,12 @@ static int con_font_set(struct vc_data *vc, struct console_font_op *op)
 	font.data = memdup_user(op->data, size);
 	if (IS_ERR(font.data))
 		return PTR_ERR(font.data);
-	acquire_console_sem();
+	console_lock();
 	if (vc->vc_sw->con_font_set)
 		rc = vc->vc_sw->con_font_set(vc, &font, op->flags);
 	else
 		rc = -ENOSYS;
-	release_console_sem();
+	console_unlock();
 	kfree(font.data);
 	return rc;
 }
@@ -4103,12 +4103,12 @@ static int con_font_default(struct vc_data *vc, struct console_font_op *op)
 	else
 		name[MAX_FONT_NAME - 1] = 0;
 
-	acquire_console_sem();
+	console_lock();
 	if (vc->vc_sw->con_font_default)
 		rc = vc->vc_sw->con_font_default(vc, &font, s);
 	else
 		rc = -ENOSYS;
-	release_console_sem();
+	console_unlock();
 	if (!rc) {
 		op->width = font.width;
 		op->height = font.height;
@@ -4124,7 +4124,7 @@ static int con_font_copy(struct vc_data *vc, struct console_font_op *op)
 	if (vc->vc_mode != KD_TEXT)
 		return -EINVAL;
 
-	acquire_console_sem();
+	console_lock();
 	if (!vc->vc_sw->con_font_copy)
 		rc = -ENOSYS;
 	else if (con < 0 || !vc_cons_allocated(con))
@@ -4133,7 +4133,7 @@ static int con_font_copy(struct vc_data *vc, struct console_font_op *op)
 		rc = 0;
 	else
 		rc = vc->vc_sw->con_font_copy(vc, con);
-	release_console_sem();
+	console_unlock();
 	return rc;
 }
 
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 6b68a0f..1235ebd 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -649,12 +649,12 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 		/*
 		 * explicitly blank/unblank the screen if switching modes
 		 */
-		acquire_console_sem();
+		console_lock();
 		if (arg == KD_TEXT)
 			do_unblank_screen(1);
 		else
 			do_blank_screen(1);
-		release_console_sem();
+		console_unlock();
 		break;
 
 	case KDGETMODE:
@@ -893,7 +893,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 			ret = -EINVAL;
 			goto out;
 		}
-		acquire_console_sem();
+		console_lock();
 		vc->vt_mode = tmp;
 		/* the frsig is ignored, so we set it to 0 */
 		vc->vt_mode.frsig = 0;
@@ -901,7 +901,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 		vc->vt_pid = get_pid(task_pid(current));
 		/* no switch is required -- saw@shade.msu.ru */
 		vc->vt_newvt = -1;
-		release_console_sem();
+		console_unlock();
 		break;
 	}
 
@@ -910,9 +910,9 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 		struct vt_mode tmp;
 		int rc;
 
-		acquire_console_sem();
+		console_lock();
 		memcpy(&tmp, &vc->vt_mode, sizeof(struct vt_mode));
-		release_console_sem();
+		console_unlock();
 
 		rc = copy_to_user(up, &tmp, sizeof(struct vt_mode));
 		if (rc)
@@ -965,9 +965,9 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 			ret =  -ENXIO;
 		else {
 			arg--;
-			acquire_console_sem();
+			console_lock();
 			ret = vc_allocate(arg);
-			release_console_sem();
+			console_unlock();
 			if (ret)
 				break;
 			set_console(arg);
@@ -990,7 +990,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 			ret = -ENXIO;
 		else {
 			vsa.console--;
-			acquire_console_sem();
+			console_lock();
 			ret = vc_allocate(vsa.console);
 			if (ret == 0) {
 				struct vc_data *nvc;
@@ -1003,7 +1003,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 				put_pid(nvc->vt_pid);
 				nvc->vt_pid = get_pid(task_pid(current));
 			}
-			release_console_sem();
+			console_unlock();
 			if (ret)
 				break;
 			/* Commence switch and lock */
@@ -1044,7 +1044,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 		/*
 		 * Switching-from response
 		 */
-		acquire_console_sem();
+		console_lock();
 		if (vc->vt_newvt >= 0) {
 			if (arg == 0)
 				/*
@@ -1063,7 +1063,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 				vc->vt_newvt = -1;
 				ret = vc_allocate(newvt);
 				if (ret) {
-					release_console_sem();
+					console_unlock();
 					break;
 				}
 				/*
@@ -1083,7 +1083,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 			if (arg != VT_ACKACQ)
 				ret = -EINVAL;
 		}
-		release_console_sem();
+		console_unlock();
 		break;
 
 	 /*
@@ -1096,20 +1096,20 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 		}
 		if (arg == 0) {
 		    /* deallocate all unused consoles, but leave 0 */
-			acquire_console_sem();
+			console_lock();
 			for (i=1; i<MAX_NR_CONSOLES; i++)
 				if (! VT_BUSY(i))
 					vc_deallocate(i);
-			release_console_sem();
+			console_unlock();
 		} else {
 			/* deallocate a single console, if possible */
 			arg--;
 			if (VT_BUSY(arg))
 				ret = -EBUSY;
 			else if (arg) {			      /* leave 0 */
-				acquire_console_sem();
+				console_lock();
 				vc_deallocate(arg);
-				release_console_sem();
+				console_unlock();
 			}
 		}
 		break;
@@ -1126,7 +1126,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 		    get_user(cc, &vtsizes->v_cols))
 			ret = -EFAULT;
 		else {
-			acquire_console_sem();
+			console_lock();
 			for (i = 0; i < MAX_NR_CONSOLES; i++) {
 				vc = vc_cons[i].d;
 
@@ -1135,7 +1135,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 					vc_resize(vc_cons[i].d, cc, ll);
 				}
 			}
-			release_console_sem();
+			console_unlock();
 		}
 		break;
 	}
@@ -1187,14 +1187,14 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 		for (i = 0; i < MAX_NR_CONSOLES; i++) {
 			if (!vc_cons[i].d)
 				continue;
-			acquire_console_sem();
+			console_lock();
 			if (vlin)
 				vc_cons[i].d->vc_scan_lines = vlin;
 			if (clin)
 				vc_cons[i].d->vc_font.height = clin;
 			vc_cons[i].d->vc_resize_user = 1;
 			vc_resize(vc_cons[i].d, cc, ll);
-			release_console_sem();
+			console_unlock();
 		}
 		break;
 	}
@@ -1367,7 +1367,7 @@ void vc_SAK(struct work_struct *work)
 	struct vc_data *vc;
 	struct tty_struct *tty;
 
-	acquire_console_sem();
+	console_lock();
 	vc = vc_con->d;
 	if (vc) {
 		tty = vc->port.tty;
@@ -1379,7 +1379,7 @@ void vc_SAK(struct work_struct *work)
 			__do_SAK(tty);
 		reset_vc(vc);
 	}
-	release_console_sem();
+	console_unlock();
 }
 
 #ifdef CONFIG_COMPAT
@@ -1737,10 +1737,10 @@ int vt_move_to_console(unsigned int vt, int alloc)
 {
 	int prev;
 
-	acquire_console_sem();
+	console_lock();
 	/* Graphics mode - up to X */
 	if (disable_vt_switch) {
-		release_console_sem();
+		console_unlock();
 		return 0;
 	}
 	prev = fg_console;
@@ -1748,7 +1748,7 @@ int vt_move_to_console(unsigned int vt, int alloc)
 	if (alloc && vc_allocate(vt)) {
 		/* we can't have a free VC for now. Too bad,
 		 * we don't want to mess the screen for now. */
-		release_console_sem();
+		console_unlock();
 		return -ENOSPC;
 	}
 
@@ -1758,10 +1758,10 @@ int vt_move_to_console(unsigned int vt, int alloc)
 		 * Let the calling function know so it can decide
 		 * what to do.
 		 */
-		release_console_sem();
+		console_unlock();
 		return -EIO;
 	}
-	release_console_sem();
+	console_unlock();
 	tty_lock();
 	if (vt_waitactive(vt + 1)) {
 		pr_debug("Suspend: Can't switch VCs.");
@@ -1781,8 +1781,8 @@ int vt_move_to_console(unsigned int vt, int alloc)
  */
 void pm_set_vt_switch(int do_switch)
 {
-	acquire_console_sem();
+	console_lock();
 	disable_vt_switch = !do_switch;
-	release_console_sem();
+	console_unlock();
 }
 EXPORT_SYMBOL(pm_set_vt_switch);
diff --git a/drivers/video/arkfb.c b/drivers/video/arkfb.c
index d583bea..391ac93 100644
--- a/drivers/video/arkfb.c
+++ b/drivers/video/arkfb.c
@@ -23,7 +23,7 @@
 #include <linux/svga.h>
 #include <linux/init.h>
 #include <linux/pci.h>
-#include <linux/console.h> /* Why should fb driver call console functions? because acquire_console_sem() */
+#include <linux/console.h> /* Why should fb driver call console functions? because console_lock() */
 #include <video/vga.h>
 
 #ifdef CONFIG_MTRR
@@ -1091,12 +1091,12 @@ static int ark_pci_suspend (struct pci_dev* dev, pm_message_t state)
 
 	dev_info(info->device, "suspend\n");
 
-	acquire_console_sem();
+	console_lock();
 	mutex_lock(&(par->open_lock));
 
 	if ((state.event == PM_EVENT_FREEZE) || (par->ref_count == 0)) {
 		mutex_unlock(&(par->open_lock));
-		release_console_sem();
+		console_unlock();
 		return 0;
 	}
 
@@ -1107,7 +1107,7 @@ static int ark_pci_suspend (struct pci_dev* dev, pm_message_t state)
 	pci_set_power_state(dev, pci_choose_state(dev, state));
 
 	mutex_unlock(&(par->open_lock));
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
@@ -1122,7 +1122,7 @@ static int ark_pci_resume (struct pci_dev* dev)
 
 	dev_info(info->device, "resume\n");
 
-	acquire_console_sem();
+	console_lock();
 	mutex_lock(&(par->open_lock));
 
 	if (par->ref_count == 0)
@@ -1141,7 +1141,7 @@ static int ark_pci_resume (struct pci_dev* dev)
 
 fail:
 	mutex_unlock(&(par->open_lock));
-	release_console_sem();
+	console_unlock();
 	return 0;
 }
 #else
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index dd9de2e..4cb6a57 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -1860,11 +1860,11 @@ static void aty128_early_resume(void *data)
 {
         struct aty128fb_par *par = data;
 
-	if (try_acquire_console_sem())
+	if (!console_trylock())
 		return;
 	pci_restore_state(par->pdev);
 	aty128_do_resume(par->pdev);
-	release_console_sem();
+	console_unlock();
 }
 #endif /* CONFIG_PPC_PMAC */
 
@@ -2438,7 +2438,7 @@ static int aty128_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 
 	printk(KERN_DEBUG "aty128fb: suspending...\n");
 	
-	acquire_console_sem();
+	console_lock();
 
 	fb_set_suspend(info, 1);
 
@@ -2470,7 +2470,7 @@ static int aty128_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 	if (state.event != PM_EVENT_ON)
 		aty128_set_suspend(par, 1);
 
-	release_console_sem();
+	console_unlock();
 
 	pdev->dev.power.power_state = state;
 
@@ -2527,9 +2527,9 @@ static int aty128_pci_resume(struct pci_dev *pdev)
 {
 	int rc;
 
-	acquire_console_sem();
+	console_lock();
 	rc = aty128_do_resume(pdev);
-	release_console_sem();
+	console_unlock();
 
 	return rc;
 }
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 767ab4f..94e293f 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -2069,7 +2069,7 @@ static int atyfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 	if (state.event == pdev->dev.power.power_state.event)
 		return 0;
 
-	acquire_console_sem();
+	console_lock();
 
 	fb_set_suspend(info, 1);
 
@@ -2097,14 +2097,14 @@ static int atyfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 		par->lock_blank = 0;
 		atyfb_blank(FB_BLANK_UNBLANK, info);
 		fb_set_suspend(info, 0);
-		release_console_sem();
+		console_unlock();
 		return -EIO;
 	}
 #else
 	pci_set_power_state(pdev, pci_choose_state(pdev, state));
 #endif
 
-	release_console_sem();
+	console_unlock();
 
 	pdev->dev.power.power_state = state;
 
@@ -2133,7 +2133,7 @@ static int atyfb_pci_resume(struct pci_dev *pdev)
 	if (pdev->dev.power.power_state.event == PM_EVENT_ON)
 		return 0;
 
-	acquire_console_sem();
+	console_lock();
 
 	/*
 	 * PCI state will have been restored by the core, so
@@ -2161,7 +2161,7 @@ static int atyfb_pci_resume(struct pci_dev *pdev)
 	par->lock_blank = 0;
 	atyfb_blank(FB_BLANK_UNBLANK, info);
 
-	release_console_sem();
+	console_unlock();
 
 	pdev->dev.power.power_state = PMSG_ON;
 
diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c
index c4e1764..92bda58 100644
--- a/drivers/video/aty/radeon_pm.c
+++ b/drivers/video/aty/radeon_pm.c
@@ -2626,7 +2626,7 @@ int radeonfb_pci_suspend(struct pci_dev *pdev, pm_message_t mesg)
 		goto done;
 	}
 
-	acquire_console_sem();
+	console_lock();
 
 	fb_set_suspend(info, 1);
 
@@ -2690,7 +2690,7 @@ int radeonfb_pci_suspend(struct pci_dev *pdev, pm_message_t mesg)
 	if (rinfo->pm_mode & radeon_pm_d2)
 		radeon_set_suspend(rinfo, 1);
 
-	release_console_sem();
+	console_unlock();
 
  done:
 	pdev->dev.power.power_state = mesg;
@@ -2715,10 +2715,10 @@ int radeonfb_pci_resume(struct pci_dev *pdev)
 		return 0;
 
 	if (rinfo->no_schedule) {
-		if (try_acquire_console_sem())
+		if (!console_trylock())
 			return 0;
 	} else
-		acquire_console_sem();
+		console_lock();
 
 	printk(KERN_DEBUG "radeonfb (%s): resuming from state: %d...\n",
 	       pci_name(pdev), pdev->dev.power.power_state.event);
@@ -2783,7 +2783,7 @@ int radeonfb_pci_resume(struct pci_dev *pdev)
 	pdev->dev.power.power_state = PMSG_ON;
 
  bail:
-	release_console_sem();
+	console_unlock();
 
 	return rc;
 }
diff --git a/drivers/video/chipsfb.c b/drivers/video/chipsfb.c
index d637e1f..cff742a 100644
--- a/drivers/video/chipsfb.c
+++ b/drivers/video/chipsfb.c
@@ -460,10 +460,10 @@ static int chipsfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 	if (!(state.event & PM_EVENT_SLEEP))
 		goto done;
 
-	acquire_console_sem();
+	console_lock();
 	chipsfb_blank(1, p);
 	fb_set_suspend(p, 1);
-	release_console_sem();
+	console_unlock();
  done:
 	pdev->dev.power.power_state = state;
 	return 0;
@@ -473,10 +473,10 @@ static int chipsfb_pci_resume(struct pci_dev *pdev)
 {
         struct fb_info *p = pci_get_drvdata(pdev);
 
-	acquire_console_sem();
+	console_lock();
 	fb_set_suspend(p, 0);
 	chipsfb_blank(0, p);
-	release_console_sem();
+	console_unlock();
 
 	pdev->dev.power.power_state = PMSG_ON;
 	return 0;
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 7ccc967..9c092b8 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -375,14 +375,14 @@ static void fb_flashcursor(struct work_struct *work)
 	int c;
 	int mode;
 
-	acquire_console_sem();
+	console_lock();
 	if (ops && ops->currcon != -1)
 		vc = vc_cons[ops->currcon].d;
 
 	if (!vc || !CON_IS_VISIBLE(vc) ||
  	    registered_fb[con2fb_map[vc->vc_num]] != info ||
 	    vc->vc_deccm != 1) {
-		release_console_sem();
+		console_unlock();
 		return;
 	}
 
@@ -392,7 +392,7 @@ static void fb_flashcursor(struct work_struct *work)
 		CM_ERASE : CM_DRAW;
 	ops->cursor(vc, info, mode, softback_lines, get_color(vc, info, c, 1),
 		    get_color(vc, info, c, 0));
-	release_console_sem();
+	console_unlock();
 }
 
 static void cursor_timer_handler(unsigned long dev_addr)
@@ -836,7 +836,7 @@ static int set_con2fb_map(int unit, int newidx, int user)
 
 	found = search_fb_in_map(newidx);
 
-	acquire_console_sem();
+	console_lock();
 	con2fb_map[unit] = newidx;
 	if (!err && !found)
  		err = con2fb_acquire_newinfo(vc, info, unit, oldidx);
@@ -863,7 +863,7 @@ static int set_con2fb_map(int unit, int newidx, int user)
 	if (!search_fb_in_map(info_idx))
 		info_idx = newidx;
 
-	release_console_sem();
+	console_unlock();
  	return err;
 }
 
@@ -3321,7 +3321,7 @@ static ssize_t store_rotate(struct device *device,
 	if (fbcon_has_exited)
 		return count;
 
-	acquire_console_sem();
+	console_lock();
 	idx = con2fb_map[fg_console];
 
 	if (idx == -1 || registered_fb[idx] == NULL)
@@ -3331,7 +3331,7 @@ static ssize_t store_rotate(struct device *device,
 	rotate = simple_strtoul(buf, last, 0);
 	fbcon_rotate(info, rotate);
 err:
-	release_console_sem();
+	console_unlock();
 	return count;
 }
 
@@ -3346,7 +3346,7 @@ static ssize_t store_rotate_all(struct device *device,
 	if (fbcon_has_exited)
 		return count;
 
-	acquire_console_sem();
+	console_lock();
 	idx = con2fb_map[fg_console];
 
 	if (idx == -1 || registered_fb[idx] == NULL)
@@ -3356,7 +3356,7 @@ static ssize_t store_rotate_all(struct device *device,
 	rotate = simple_strtoul(buf, last, 0);
 	fbcon_rotate_all(info, rotate);
 err:
-	release_console_sem();
+	console_unlock();
 	return count;
 }
 
@@ -3369,7 +3369,7 @@ static ssize_t show_rotate(struct device *device,
 	if (fbcon_has_exited)
 		return 0;
 
-	acquire_console_sem();
+	console_lock();
 	idx = con2fb_map[fg_console];
 
 	if (idx == -1 || registered_fb[idx] == NULL)
@@ -3378,7 +3378,7 @@ static ssize_t show_rotate(struct device *device,
 	info = registered_fb[idx];
 	rotate = fbcon_get_rotate(info);
 err:
-	release_console_sem();
+	console_unlock();
 	return snprintf(buf, PAGE_SIZE, "%d\n", rotate);
 }
 
@@ -3392,7 +3392,7 @@ static ssize_t show_cursor_blink(struct device *device,
 	if (fbcon_has_exited)
 		return 0;
 
-	acquire_console_sem();
+	console_lock();
 	idx = con2fb_map[fg_console];
 
 	if (idx == -1 || registered_fb[idx] == NULL)
@@ -3406,7 +3406,7 @@ static ssize_t show_cursor_blink(struct device *device,
 
 	blink = (ops->flags & FBCON_FLAGS_CURSOR_TIMER) ? 1 : 0;
 err:
-	release_console_sem();
+	console_unlock();
 	return snprintf(buf, PAGE_SIZE, "%d\n", blink);
 }
 
@@ -3421,7 +3421,7 @@ static ssize_t store_cursor_blink(struct device *device,
 	if (fbcon_has_exited)
 		return count;
 
-	acquire_console_sem();
+	console_lock();
 	idx = con2fb_map[fg_console];
 
 	if (idx == -1 || registered_fb[idx] == NULL)
@@ -3443,7 +3443,7 @@ static ssize_t store_cursor_blink(struct device *device,
 	}
 
 err:
-	release_console_sem();
+	console_unlock();
 	return count;
 }
 
@@ -3482,7 +3482,7 @@ static void fbcon_start(void)
 	if (num_registered_fb) {
 		int i;
 
-		acquire_console_sem();
+		console_lock();
 
 		for (i = 0; i < FB_MAX; i++) {
 			if (registered_fb[i] != NULL) {
@@ -3491,7 +3491,7 @@ static void fbcon_start(void)
 			}
 		}
 
-		release_console_sem();
+		console_unlock();
 		fbcon_takeover(0);
 	}
 }
@@ -3552,7 +3552,7 @@ static int __init fb_console_init(void)
 {
 	int i;
 
-	acquire_console_sem();
+	console_lock();
 	fb_register_client(&fbcon_event_notifier);
 	fbcon_device = device_create(fb_class, NULL, MKDEV(0, 0), NULL,
 				     "fbcon");
@@ -3568,7 +3568,7 @@ static int __init fb_console_init(void)
 	for (i = 0; i < MAX_NR_CONSOLES; i++)
 		con2fb_map[i] = -1;
 
-	release_console_sem();
+	console_unlock();
 	fbcon_start();
 	return 0;
 }
@@ -3591,12 +3591,12 @@ static void __exit fbcon_deinit_device(void)
 
 static void __exit fb_console_exit(void)
 {
-	acquire_console_sem();
+	console_lock();
 	fb_unregister_client(&fbcon_event_notifier);
 	fbcon_deinit_device();
 	device_destroy(fb_class, MKDEV(0, 0));
 	fbcon_exit();
-	release_console_sem();
+	console_unlock();
 	unregister_con_driver(&fb_con);
 }	
 
diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index c265aed..fbf6a9c 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -1130,14 +1130,14 @@ static int fb_suspend(struct platform_device *dev, pm_message_t state)
 	struct fb_info *info = platform_get_drvdata(dev);
 	struct da8xx_fb_par *par = info->par;
 
-	acquire_console_sem();
+	console_lock();
 	if (par->panel_power_ctrl)
 		par->panel_power_ctrl(0);
 
 	fb_set_suspend(info, 1);
 	lcd_disable_raster();
 	clk_disable(par->lcdc_clk);
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
@@ -1146,14 +1146,14 @@ static int fb_resume(struct platform_device *dev)
 	struct fb_info *info = platform_get_drvdata(dev);
 	struct da8xx_fb_par *par = info->par;
 
-	acquire_console_sem();
+	console_lock();
 	if (par->panel_power_ctrl)
 		par->panel_power_ctrl(1);
 
 	clk_enable(par->lcdc_clk);
 	lcd_enable_raster();
 	fb_set_suspend(info, 0);
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 4ac1201..e2bf953 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1036,11 +1036,11 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
 			return -EFAULT;
 		if (!lock_fb_info(info))
 			return -ENODEV;
-		acquire_console_sem();
+		console_lock();
 		info->flags |= FBINFO_MISC_USEREVENT;
 		ret = fb_set_var(info, &var);
 		info->flags &= ~FBINFO_MISC_USEREVENT;
-		release_console_sem();
+		console_unlock();
 		unlock_fb_info(info);
 		if (!ret && copy_to_user(argp, &var, sizeof(var)))
 			ret = -EFAULT;
@@ -1072,9 +1072,9 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
 			return -EFAULT;
 		if (!lock_fb_info(info))
 			return -ENODEV;
-		acquire_console_sem();
+		console_lock();
 		ret = fb_pan_display(info, &var);
-		release_console_sem();
+		console_unlock();
 		unlock_fb_info(info);
 		if (ret == 0 && copy_to_user(argp, &var, sizeof(var)))
 			return -EFAULT;
@@ -1119,11 +1119,11 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
 	case FBIOBLANK:
 		if (!lock_fb_info(info))
 			return -ENODEV;
-		acquire_console_sem();
+		console_lock();
 		info->flags |= FBINFO_MISC_USEREVENT;
 		ret = fb_blank(info, arg);
 		info->flags &= ~FBINFO_MISC_USEREVENT;
-		release_console_sem();
+		console_unlock();
 		unlock_fb_info(info);
 		break;
 	default:
diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c
index 0a08f13..f4a3277 100644
--- a/drivers/video/fbsysfs.c
+++ b/drivers/video/fbsysfs.c
@@ -90,11 +90,11 @@ static int activate(struct fb_info *fb_info, struct fb_var_screeninfo *var)
 	int err;
 
 	var->activate |= FB_ACTIVATE_FORCE;
-	acquire_console_sem();
+	console_lock();
 	fb_info->flags |= FBINFO_MISC_USEREVENT;
 	err = fb_set_var(fb_info, var);
 	fb_info->flags &= ~FBINFO_MISC_USEREVENT;
-	release_console_sem();
+	console_unlock();
 	if (err)
 		return err;
 	return 0;
@@ -175,7 +175,7 @@ static ssize_t store_modes(struct device *device,
 	if (i * sizeof(struct fb_videomode) != count)
 		return -EINVAL;
 
-	acquire_console_sem();
+	console_lock();
 	list_splice(&fb_info->modelist, &old_list);
 	fb_videomode_to_modelist((const struct fb_videomode *)buf, i,
 				 &fb_info->modelist);
@@ -185,7 +185,7 @@ static ssize_t store_modes(struct device *device,
 	} else
 		fb_destroy_modelist(&old_list);
 
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
@@ -301,11 +301,11 @@ static ssize_t store_blank(struct device *device,
 	char *last = NULL;
 	int err;
 
-	acquire_console_sem();
+	console_lock();
 	fb_info->flags |= FBINFO_MISC_USEREVENT;
 	err = fb_blank(fb_info, simple_strtoul(buf, &last, 0));
 	fb_info->flags &= ~FBINFO_MISC_USEREVENT;
-	release_console_sem();
+	console_unlock();
 	if (err < 0)
 		return err;
 	return count;
@@ -364,9 +364,9 @@ static ssize_t store_pan(struct device *device,
 		return -EINVAL;
 	var.yoffset = simple_strtoul(last, &last, 0);
 
-	acquire_console_sem();
+	console_lock();
 	err = fb_pan_display(fb_info, &var);
-	release_console_sem();
+	console_unlock();
 
 	if (err < 0)
 		return err;
@@ -399,9 +399,9 @@ static ssize_t store_fbstate(struct device *device,
 
 	state = simple_strtoul(buf, &last, 0);
 
-	acquire_console_sem();
+	console_lock();
 	fb_set_suspend(fb_info, (int)state);
-	release_console_sem();
+	console_unlock();
 
 	return count;
 }
diff --git a/drivers/video/geode/gxfb_core.c b/drivers/video/geode/gxfb_core.c
index 70b1d9d..b4f19db 100644
--- a/drivers/video/geode/gxfb_core.c
+++ b/drivers/video/geode/gxfb_core.c
@@ -344,10 +344,10 @@ static int gxfb_suspend(struct pci_dev *pdev, pm_message_t state)
 	struct fb_info *info = pci_get_drvdata(pdev);
 
 	if (state.event == PM_EVENT_SUSPEND) {
-		acquire_console_sem();
+		console_lock();
 		gx_powerdown(info);
 		fb_set_suspend(info, 1);
-		release_console_sem();
+		console_unlock();
 	}
 
 	/* there's no point in setting PCI states; we emulate PCI, so
@@ -361,7 +361,7 @@ static int gxfb_resume(struct pci_dev *pdev)
 	struct fb_info *info = pci_get_drvdata(pdev);
 	int ret;
 
-	acquire_console_sem();
+	console_lock();
 	ret = gx_powerup(info);
 	if (ret) {
 		printk(KERN_ERR "gxfb:  power up failed!\n");
@@ -369,7 +369,7 @@ static int gxfb_resume(struct pci_dev *pdev)
 	}
 
 	fb_set_suspend(info, 0);
-	release_console_sem();
+	console_unlock();
 	return 0;
 }
 #endif
diff --git a/drivers/video/geode/lxfb_core.c b/drivers/video/geode/lxfb_core.c
index 39bdbed..416851c 100644
--- a/drivers/video/geode/lxfb_core.c
+++ b/drivers/video/geode/lxfb_core.c
@@ -465,10 +465,10 @@ static int lxfb_suspend(struct pci_dev *pdev, pm_message_t state)
 	struct fb_info *info = pci_get_drvdata(pdev);
 
 	if (state.event == PM_EVENT_SUSPEND) {
-		acquire_console_sem();
+		console_lock();
 		lx_powerdown(info);
 		fb_set_suspend(info, 1);
-		release_console_sem();
+		console_unlock();
 	}
 
 	/* there's no point in setting PCI states; we emulate PCI, so
@@ -482,7 +482,7 @@ static int lxfb_resume(struct pci_dev *pdev)
 	struct fb_info *info = pci_get_drvdata(pdev);
 	int ret;
 
-	acquire_console_sem();
+	console_lock();
 	ret = lx_powerup(info);
 	if (ret) {
 		printk(KERN_ERR "lxfb:  power up failed!\n");
@@ -490,7 +490,7 @@ static int lxfb_resume(struct pci_dev *pdev)
 	}
 
 	fb_set_suspend(info, 0);
-	release_console_sem();
+	console_unlock();
 	return 0;
 }
 #else
diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c
index 5743ea2..318f6fb 100644
--- a/drivers/video/i810/i810_main.c
+++ b/drivers/video/i810/i810_main.c
@@ -1574,7 +1574,7 @@ static int i810fb_suspend(struct pci_dev *dev, pm_message_t mesg)
 		return 0;
 	}
 
-	acquire_console_sem();
+	console_lock();
 	fb_set_suspend(info, 1);
 
 	if (info->fbops->fb_sync)
@@ -1587,7 +1587,7 @@ static int i810fb_suspend(struct pci_dev *dev, pm_message_t mesg)
 	pci_save_state(dev);
 	pci_disable_device(dev);
 	pci_set_power_state(dev, pci_choose_state(dev, mesg));
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
@@ -1605,7 +1605,7 @@ static int i810fb_resume(struct pci_dev *dev)
 		return 0;
 	}
 
-	acquire_console_sem();
+	console_lock();
 	pci_set_power_state(dev, PCI_D0);
 	pci_restore_state(dev);
 
@@ -1621,7 +1621,7 @@ static int i810fb_resume(struct pci_dev *dev)
 	fb_set_suspend (info, 0);
 	info->fbops->fb_blank(VESA_NO_BLANKING, info);
 fail:
-	release_console_sem();
+	console_unlock();
 	return 0;
 }
 /***********************************************************************
diff --git a/drivers/video/jz4740_fb.c b/drivers/video/jz4740_fb.c
index 670ecaa..de36693 100644
--- a/drivers/video/jz4740_fb.c
+++ b/drivers/video/jz4740_fb.c
@@ -778,9 +778,9 @@ static int jzfb_suspend(struct device *dev)
 {
 	struct jzfb *jzfb = dev_get_drvdata(dev);
 
-	acquire_console_sem();
+	console_lock();
 	fb_set_suspend(jzfb->fb, 1);
-	release_console_sem();
+	console_unlock();
 
 	mutex_lock(&jzfb->lock);
 	if (jzfb->is_enabled)
@@ -800,9 +800,9 @@ static int jzfb_resume(struct device *dev)
 		jzfb_enable(jzfb);
 	mutex_unlock(&jzfb->lock);
 
-	acquire_console_sem();
+	console_lock();
 	fb_set_suspend(jzfb->fb, 0);
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
diff --git a/drivers/video/mx3fb.c b/drivers/video/mx3fb.c
index cb01391..7e3a490 100644
--- a/drivers/video/mx3fb.c
+++ b/drivers/video/mx3fb.c
@@ -1177,9 +1177,9 @@ static int mx3fb_suspend(struct platform_device *pdev, pm_message_t state)
 	struct mx3fb_data *mx3fb = platform_get_drvdata(pdev);
 	struct mx3fb_info *mx3_fbi = mx3fb->fbi->par;
 
-	acquire_console_sem();
+	console_lock();
 	fb_set_suspend(mx3fb->fbi, 1);
-	release_console_sem();
+	console_unlock();
 
 	if (mx3_fbi->blank == FB_BLANK_UNBLANK) {
 		sdc_disable_channel(mx3_fbi);
@@ -1202,9 +1202,9 @@ static int mx3fb_resume(struct platform_device *pdev)
 		sdc_set_brightness(mx3fb, mx3fb->backlight_level);
 	}
 
-	acquire_console_sem();
+	console_lock();
 	fb_set_suspend(mx3fb->fbi, 0);
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c
index efe10ff..081dc47 100644
--- a/drivers/video/nvidia/nvidia.c
+++ b/drivers/video/nvidia/nvidia.c
@@ -1057,7 +1057,7 @@ static int nvidiafb_suspend(struct pci_dev *dev, pm_message_t mesg)
 
 	if (mesg.event == PM_EVENT_PRETHAW)
 		mesg.event = PM_EVENT_FREEZE;
-	acquire_console_sem();
+	console_lock();
 	par->pm_state = mesg.event;
 
 	if (mesg.event & PM_EVENT_SLEEP) {
@@ -1070,7 +1070,7 @@ static int nvidiafb_suspend(struct pci_dev *dev, pm_message_t mesg)
 	}
 	dev->dev.power.power_state = mesg;
 
-	release_console_sem();
+	console_unlock();
 	return 0;
 }
 
@@ -1079,7 +1079,7 @@ static int nvidiafb_resume(struct pci_dev *dev)
 	struct fb_info *info = pci_get_drvdata(dev);
 	struct nvidia_par *par = info->par;
 
-	acquire_console_sem();
+	console_lock();
 	pci_set_power_state(dev, PCI_D0);
 
 	if (par->pm_state != PM_EVENT_FREEZE) {
@@ -1097,7 +1097,7 @@ static int nvidiafb_resume(struct pci_dev *dev)
 	nvidiafb_blank(FB_BLANK_UNBLANK, info);
 
 fail:
-	release_console_sem();
+	console_unlock();
 	return 0;
 }
 #else
diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
index 9c0144e..65560a1 100644
--- a/drivers/video/ps3fb.c
+++ b/drivers/video/ps3fb.c
@@ -513,9 +513,9 @@ static int ps3fb_release(struct fb_info *info, int user)
 	if (atomic_dec_and_test(&ps3fb.f_count)) {
 		if (atomic_read(&ps3fb.ext_flip)) {
 			atomic_set(&ps3fb.ext_flip, 0);
-			if (!try_acquire_console_sem()) {
+			if (console_trylock()) {
 				ps3fb_sync(info, 0);	/* single buffer */
-				release_console_sem();
+				console_unlock();
 			}
 		}
 	}
@@ -830,14 +830,14 @@ static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
 			if (vmode) {
 				var = info->var;
 				fb_videomode_to_var(&var, vmode);
-				acquire_console_sem();
+				console_lock();
 				info->flags |= FBINFO_MISC_USEREVENT;
 				/* Force, in case only special bits changed */
 				var.activate |= FB_ACTIVATE_FORCE;
 				par->new_mode_id = val;
 				retval = fb_set_var(info, &var);
 				info->flags &= ~FBINFO_MISC_USEREVENT;
-				release_console_sem();
+				console_unlock();
 			}
 			break;
 		}
@@ -881,9 +881,9 @@ static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
 			break;
 
 		dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
-		acquire_console_sem();
+		console_lock();
 		retval = ps3fb_sync(info, val);
-		release_console_sem();
+		console_unlock();
 		break;
 
 	default:
@@ -903,9 +903,9 @@ static int ps3fbd(void *arg)
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (ps3fb.is_kicked) {
 			ps3fb.is_kicked = 0;
-			acquire_console_sem();
+			console_lock();
 			ps3fb_sync(info, 0);	/* single buffer */
-			release_console_sem();
+			console_unlock();
 		}
 		schedule();
 	}
diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c
index dce8c97..75738a9 100644
--- a/drivers/video/s3fb.c
+++ b/drivers/video/s3fb.c
@@ -22,7 +22,7 @@
 #include <linux/svga.h>
 #include <linux/init.h>
 #include <linux/pci.h>
-#include <linux/console.h> /* Why should fb driver call console functions? because acquire_console_sem() */
+#include <linux/console.h> /* Why should fb driver call console functions? because console_lock() */
 #include <video/vga.h>
 
 #ifdef CONFIG_MTRR
@@ -1113,12 +1113,12 @@ static int s3_pci_suspend(struct pci_dev* dev, pm_message_t state)
 
 	dev_info(info->device, "suspend\n");
 
-	acquire_console_sem();
+	console_lock();
 	mutex_lock(&(par->open_lock));
 
 	if ((state.event == PM_EVENT_FREEZE) || (par->ref_count == 0)) {
 		mutex_unlock(&(par->open_lock));
-		release_console_sem();
+		console_unlock();
 		return 0;
 	}
 
@@ -1129,7 +1129,7 @@ static int s3_pci_suspend(struct pci_dev* dev, pm_message_t state)
 	pci_set_power_state(dev, pci_choose_state(dev, state));
 
 	mutex_unlock(&(par->open_lock));
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
@@ -1145,12 +1145,12 @@ static int s3_pci_resume(struct pci_dev* dev)
 
 	dev_info(info->device, "resume\n");
 
-	acquire_console_sem();
+	console_lock();
 	mutex_lock(&(par->open_lock));
 
 	if (par->ref_count == 0) {
 		mutex_unlock(&(par->open_lock));
-		release_console_sem();
+		console_unlock();
 		return 0;
 	}
 
@@ -1159,7 +1159,7 @@ static int s3_pci_resume(struct pci_dev* dev)
 	err = pci_enable_device(dev);
 	if (err) {
 		mutex_unlock(&(par->open_lock));
-		release_console_sem();
+		console_unlock();
 		dev_err(info->device, "error %d enabling device for resume\n", err);
 		return err;
 	}
@@ -1169,7 +1169,7 @@ static int s3_pci_resume(struct pci_dev* dev)
 	fb_set_suspend(info, 0);
 
 	mutex_unlock(&(par->open_lock));
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
diff --git a/drivers/video/savage/savagefb_driver.c b/drivers/video/savage/savagefb_driver.c
index 842d157..487911e 100644
--- a/drivers/video/savage/savagefb_driver.c
+++ b/drivers/video/savage/savagefb_driver.c
@@ -2373,7 +2373,7 @@ static int savagefb_suspend(struct pci_dev *dev, pm_message_t mesg)
 	if (mesg.event == PM_EVENT_FREEZE)
 		return 0;
 
-	acquire_console_sem();
+	console_lock();
 	fb_set_suspend(info, 1);
 
 	if (info->fbops->fb_sync)
@@ -2385,7 +2385,7 @@ static int savagefb_suspend(struct pci_dev *dev, pm_message_t mesg)
 	pci_save_state(dev);
 	pci_disable_device(dev);
 	pci_set_power_state(dev, pci_choose_state(dev, mesg));
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
@@ -2409,7 +2409,7 @@ static int savagefb_resume(struct pci_dev* dev)
 		return 0;
 	}
 
-	acquire_console_sem();
+	console_lock();
 
 	pci_set_power_state(dev, PCI_D0);
 	pci_restore_state(dev);
@@ -2423,7 +2423,7 @@ static int savagefb_resume(struct pci_dev* dev)
 	savagefb_set_par(info);
 	fb_set_suspend(info, 0);
 	savagefb_blank(FB_BLANK_UNBLANK, info);
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index 74d9f54..2b9e56a 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -1151,7 +1151,7 @@ static void sh_hdmi_edid_work_fn(struct work_struct *work)
 
 		ch = info->par;
 
-		acquire_console_sem();
+		console_lock();
 
 		/* HDMI plug in */
 		if (!sh_hdmi_must_reconfigure(hdmi) &&
@@ -1171,7 +1171,7 @@ static void sh_hdmi_edid_work_fn(struct work_struct *work)
 			fb_set_suspend(info, 0);
 		}
 
-		release_console_sem();
+		console_unlock();
 	} else {
 		ret = 0;
 		if (!hdmi->info)
@@ -1181,12 +1181,12 @@ static void sh_hdmi_edid_work_fn(struct work_struct *work)
 		fb_destroy_modedb(hdmi->monspec.modedb);
 		hdmi->monspec.modedb = NULL;
 
-		acquire_console_sem();
+		console_lock();
 
 		/* HDMI disconnect */
 		fb_set_suspend(hdmi->info, 1);
 
-		release_console_sem();
+		console_unlock();
 		pm_runtime_put(hdmi->dev);
 	}
 
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index bd4840a..bf12e53 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -912,9 +912,9 @@ static int sh_mobile_release(struct fb_info *info, int user)
 
 	/* Nothing to reconfigure, when called from fbcon */
 	if (user) {
-		acquire_console_sem();
+		console_lock();
 		sh_mobile_fb_reconfig(info);
-		release_console_sem();
+		console_unlock();
 	}
 
 	mutex_unlock(&ch->open_lock);
diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c
index b7dc180..bcb44a5 100644
--- a/drivers/video/sm501fb.c
+++ b/drivers/video/sm501fb.c
@@ -2010,9 +2010,9 @@ static int sm501fb_suspend_fb(struct sm501fb_info *info,
 
 	/* tell console/fb driver we are suspending */
 
-	acquire_console_sem();
+	console_lock();
 	fb_set_suspend(fbi, 1);
-	release_console_sem();
+	console_unlock();
 
 	/* backup copies in case chip is powered down over suspend */
 
@@ -2069,9 +2069,9 @@ static void sm501fb_resume_fb(struct sm501fb_info *info,
 		memcpy_toio(par->cursor.k_addr, par->store_cursor,
 			    par->cursor.size);
 
-	acquire_console_sem();
+	console_lock();
 	fb_set_suspend(fbi, 0);
-	release_console_sem();
+	console_unlock();
 
 	vfree(par->store_fb);
 	vfree(par->store_cursor);
diff --git a/drivers/video/tmiofb.c b/drivers/video/tmiofb.c
index 6913fe1..dfef88c 100644
--- a/drivers/video/tmiofb.c
+++ b/drivers/video/tmiofb.c
@@ -25,7 +25,7 @@
 #include <linux/fb.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
-/* Why should fb driver call console functions? because acquire_console_sem() */
+/* Why should fb driver call console functions? because console_lock() */
 #include <linux/console.h>
 #include <linux/mfd/core.h>
 #include <linux/mfd/tmio.h>
@@ -944,7 +944,7 @@ static int tmiofb_suspend(struct platform_device *dev, pm_message_t state)
 	struct mfd_cell *cell = dev->dev.platform_data;
 	int retval = 0;
 
-	acquire_console_sem();
+	console_lock();
 
 	fb_set_suspend(info, 1);
 
@@ -965,7 +965,7 @@ static int tmiofb_suspend(struct platform_device *dev, pm_message_t state)
 	if (cell->suspend)
 		retval = cell->suspend(dev);
 
-	release_console_sem();
+	console_unlock();
 
 	return retval;
 }
@@ -976,7 +976,7 @@ static int tmiofb_resume(struct platform_device *dev)
 	struct mfd_cell *cell = dev->dev.platform_data;
 	int retval = 0;
 
-	acquire_console_sem();
+	console_lock();
 
 	if (cell->resume) {
 		retval = cell->resume(dev);
@@ -992,7 +992,7 @@ static int tmiofb_resume(struct platform_device *dev)
 
 	fb_set_suspend(info, 0);
 out:
-	release_console_sem();
+	console_unlock();
 	return retval;
 }
 #else
diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c
index 289edd5..4e66349 100644
--- a/drivers/video/via/viafbdev.c
+++ b/drivers/video/via/viafbdev.c
@@ -1674,17 +1674,17 @@ static int parse_mode(const char *str, u32 *xres, u32 *yres)
 #ifdef CONFIG_PM
 static int viafb_suspend(void *unused)
 {
-	acquire_console_sem();
+	console_lock();
 	fb_set_suspend(viafbinfo, 1);
 	viafb_sync(viafbinfo);
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
 
 static int viafb_resume(void *unused)
 {
-	acquire_console_sem();
+	console_lock();
 	if (viaparinfo->shared->vdev->engine_mmio)
 		viafb_reset_engine(viaparinfo);
 	viafb_set_par(viafbinfo);
@@ -1692,7 +1692,7 @@ static int viafb_resume(void *unused)
 		viafb_set_par(viafbinfo1);
 	fb_set_suspend(viafbinfo, 0);
 
-	release_console_sem();
+	console_unlock();
 	return 0;
 }
 
diff --git a/drivers/video/vt8623fb.c b/drivers/video/vt8623fb.c
index 85d76ec..a2965ab 100644
--- a/drivers/video/vt8623fb.c
+++ b/drivers/video/vt8623fb.c
@@ -23,7 +23,7 @@
 #include <linux/svga.h>
 #include <linux/init.h>
 #include <linux/pci.h>
-#include <linux/console.h> /* Why should fb driver call console functions? because acquire_console_sem() */
+#include <linux/console.h> /* Why should fb driver call console functions? because console_lock() */
 #include <video/vga.h>
 
 #ifdef CONFIG_MTRR
@@ -819,12 +819,12 @@ static int vt8623_pci_suspend(struct pci_dev* dev, pm_message_t state)
 
 	dev_info(info->device, "suspend\n");
 
-	acquire_console_sem();
+	console_lock();
 	mutex_lock(&(par->open_lock));
 
 	if ((state.event == PM_EVENT_FREEZE) || (par->ref_count == 0)) {
 		mutex_unlock(&(par->open_lock));
-		release_console_sem();
+		console_unlock();
 		return 0;
 	}
 
@@ -835,7 +835,7 @@ static int vt8623_pci_suspend(struct pci_dev* dev, pm_message_t state)
 	pci_set_power_state(dev, pci_choose_state(dev, state));
 
 	mutex_unlock(&(par->open_lock));
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
@@ -850,7 +850,7 @@ static int vt8623_pci_resume(struct pci_dev* dev)
 
 	dev_info(info->device, "resume\n");
 
-	acquire_console_sem();
+	console_lock();
 	mutex_lock(&(par->open_lock));
 
 	if (par->ref_count == 0)
@@ -869,7 +869,7 @@ static int vt8623_pci_resume(struct pci_dev* dev)
 
 fail:
 	mutex_unlock(&(par->open_lock));
-	release_console_sem();
+	console_unlock();
 
 	return 0;
 }
diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c
index 3e6934d..a20218c 100644
--- a/drivers/video/xen-fbfront.c
+++ b/drivers/video/xen-fbfront.c
@@ -491,12 +491,12 @@ xenfb_make_preferred_console(void)
 	if (console_set_on_cmdline)
 		return;
 
-	acquire_console_sem();
+	console_lock();
 	for_each_console(c) {
 		if (!strcmp(c->name, "tty") && c->index == 0)
 			break;
 	}
-	release_console_sem();
+	console_unlock();
 	if (c) {
 		unregister_console(c);
 		c->flags |= CON_CONSDEV;
diff --git a/fs/proc/consoles.c b/fs/proc/consoles.c
index eafc22a..b701eaa 100644
--- a/fs/proc/consoles.c
+++ b/fs/proc/consoles.c
@@ -67,7 +67,7 @@ static void *c_start(struct seq_file *m, loff_t *pos)
 	struct console *con;
 	loff_t off = 0;
 
-	acquire_console_sem();
+	console_lock();
 	for_each_console(con)
 		if (off++ == *pos)
 			break;
@@ -84,7 +84,7 @@ static void *c_next(struct seq_file *m, void *v, loff_t *pos)
 
 static void c_stop(struct seq_file *m, void *v)
 {
-	release_console_sem();
+	console_unlock();
 }
 
 static const struct seq_operations consoles_op = {
diff --git a/include/linux/console.h b/include/linux/console.h
index 9774fe6..7453cfd 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -139,9 +139,9 @@ extern int update_console_cmdline(char *name, int idx, char *name_new, int idx_n
 extern void register_console(struct console *);
 extern int unregister_console(struct console *);
 extern struct console *console_drivers;
-extern void acquire_console_sem(void);
-extern int try_acquire_console_sem(void);
-extern void release_console_sem(void);
+extern void console_lock(void);
+extern int console_trylock(void);
+extern void console_unlock(void);
 extern void console_conditional_schedule(void);
 extern void console_unblank(void);
 extern struct tty_driver *console_device(int *);
diff --git a/kernel/printk.c b/kernel/printk.c
index 53d9a9e..ef85a8e 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -97,7 +97,7 @@ static int console_locked, console_suspended;
 /*
  * logbuf_lock protects log_buf, log_start, log_end, con_start and logged_chars
  * It is also used in interesting ways to provide interlocking in
- * release_console_sem().
+ * console_unlock();.
  */
 static DEFINE_SPINLOCK(logbuf_lock);
 
@@ -501,7 +501,7 @@ static void _call_console_drivers(unsigned start,
 /*
  * Call the console drivers, asking them to write out
  * log_buf[start] to log_buf[end - 1].
- * The console_sem must be held.
+ * The console_lock must be held.
  */
 static void call_console_drivers(unsigned start, unsigned end)
 {
@@ -604,11 +604,11 @@ static int have_callable_console(void)
  *
  * This is printk().  It can be called from any context.  We want it to work.
  *
- * We try to grab the console_sem.  If we succeed, it's easy - we log the output and
+ * We try to grab the console_lock.  If we succeed, it's easy - we log the output and
  * call the console drivers.  If we fail to get the semaphore we place the output
  * into the log buffer and return.  The current holder of the console_sem will
- * notice the new output in release_console_sem() and will send it to the
- * consoles before releasing the semaphore.
+ * notice the new output in console_unlock(); and will send it to the
+ * consoles before releasing the lock.
  *
  * One effect of this deferred printing is that code which calls printk() and
  * then changes console_loglevel may break. This is because console_loglevel
@@ -659,19 +659,19 @@ static inline int can_use_console(unsigned int cpu)
 /*
  * Try to get console ownership to actually show the kernel
  * messages from a 'printk'. Return true (and with the
- * console_semaphore held, and 'console_locked' set) if it
+ * console_lock held, and 'console_locked' set) if it
  * is successful, false otherwise.
  *
  * This gets called with the 'logbuf_lock' spinlock held and
  * interrupts disabled. It should return with 'lockbuf_lock'
  * released but interrupts still disabled.
  */
-static int acquire_console_semaphore_for_printk(unsigned int cpu)
+static int console_trylock_for_printk(unsigned int cpu)
 	__releases(&logbuf_lock)
 {
 	int retval = 0;
 
-	if (!try_acquire_console_sem()) {
+	if (console_trylock()) {
 		retval = 1;
 
 		/*
@@ -827,12 +827,12 @@ asmlinkage int vprintk(const char *fmt, va_list args)
 	 * actual magic (print out buffers, wake up klogd,
 	 * etc). 
 	 *
-	 * The acquire_console_semaphore_for_printk() function
+	 * The console_trylock_for_printk() function
 	 * will release 'logbuf_lock' regardless of whether it
 	 * actually gets the semaphore or not.
 	 */
-	if (acquire_console_semaphore_for_printk(this_cpu))
-		release_console_sem();
+	if (console_trylock_for_printk(this_cpu))
+		console_unlock();
 
 	lockdep_on();
 out_restore_irqs:
@@ -993,7 +993,7 @@ void suspend_console(void)
 	if (!console_suspend_enabled)
 		return;
 	printk("Suspending console(s) (use no_console_suspend to debug)\n");
-	acquire_console_sem();
+	console_lock();;
 	console_suspended = 1;
 	up(&console_sem);
 }
@@ -1004,7 +1004,7 @@ void resume_console(void)
 		return;
 	down(&console_sem);
 	console_suspended = 0;
-	release_console_sem();
+	console_unlock();
 }
 
 /**
@@ -1027,21 +1027,21 @@ static int __cpuinit console_cpu_notify(struct notifier_block *self,
 	case CPU_DYING:
 	case CPU_DOWN_FAILED:
 	case CPU_UP_CANCELED:
-		acquire_console_sem();
-		release_console_sem();
+		console_lock();;
+		console_unlock();
 	}
 	return NOTIFY_OK;
 }
 
 /**
- * acquire_console_sem - lock the console system for exclusive use.
+ * console_lock - lock the console system for exclusive use.
  *
- * Acquires a semaphore which guarantees that the caller has
+ * Acquires a lock which guarantees that the caller has
  * exclusive access to the console system and the console_drivers list.
  *
  * Can sleep, returns nothing.
  */
-void acquire_console_sem(void)
+void console_lock(void)
 {
 	BUG_ON(in_interrupt());
 	down(&console_sem);
@@ -1050,21 +1050,29 @@ void acquire_console_sem(void)
 	console_locked = 1;
 	console_may_schedule = 1;
 }
-EXPORT_SYMBOL(acquire_console_sem);
+EXPORT_SYMBOL(console_lock);
 
-int try_acquire_console_sem(void)
+/**
+ * console_trylock - try to lock the console system for exclusive use.
+ *
+ * Tried to acquire a lock which guarantees that the caller has
+ * exclusive access to the console system and the console_drivers list.
+ *
+ * returns -1 on success, and 0 on failure to acquire the lock.
+ */
+int console_trylock(void)
 {
 	if (down_trylock(&console_sem))
-		return -1;
+		return 0;
 	if (console_suspended) {
 		up(&console_sem);
-		return -1;
+		return 0;
 	}
 	console_locked = 1;
 	console_may_schedule = 0;
-	return 0;
+	return -1;
 }
-EXPORT_SYMBOL(try_acquire_console_sem);
+EXPORT_SYMBOL(console_trylock);
 
 int is_console_locked(void)
 {
@@ -1095,20 +1103,20 @@ void wake_up_klogd(void)
 }
 
 /**
- * release_console_sem - unlock the console system
+ * console_unlock - unlock the console system
  *
- * Releases the semaphore which the caller holds on the console system
+ * Releases the console_lock which the caller holds on the console system
  * and the console driver list.
  *
- * While the semaphore was held, console output may have been buffered
- * by printk().  If this is the case, release_console_sem() emits
- * the output prior to releasing the semaphore.
+ * While the console_lock was held, console output may have been buffered
+ * by printk().  If this is the case, console_unlock(); emits
+ * the output prior to releasing the lock.
  *
  * If there is output waiting for klogd, we wake it up.
  *
- * release_console_sem() may be called from any context.
+ * console_unlock(); may be called from any context.
  */
-void release_console_sem(void)
+void console_unlock(void)
 {
 	unsigned long flags;
 	unsigned _con_start, _log_end;
@@ -1141,7 +1149,7 @@ void release_console_sem(void)
 	if (wake_klogd)
 		wake_up_klogd();
 }
-EXPORT_SYMBOL(release_console_sem);
+EXPORT_SYMBOL(console_unlock);
 
 /**
  * console_conditional_schedule - yield the CPU if required
@@ -1150,7 +1158,7 @@ EXPORT_SYMBOL(release_console_sem);
  * if this CPU should yield the CPU to another task, do
  * so here.
  *
- * Must be called within acquire_console_sem().
+ * Must be called within console_lock();.
  */
 void __sched console_conditional_schedule(void)
 {
@@ -1171,14 +1179,14 @@ void console_unblank(void)
 		if (down_trylock(&console_sem) != 0)
 			return;
 	} else
-		acquire_console_sem();
+		console_lock();
 
 	console_locked = 1;
 	console_may_schedule = 0;
 	for_each_console(c)
 		if ((c->flags & CON_ENABLED) && c->unblank)
 			c->unblank();
-	release_console_sem();
+	console_unlock();
 }
 
 /*
@@ -1189,7 +1197,7 @@ struct tty_driver *console_device(int *index)
 	struct console *c;
 	struct tty_driver *driver = NULL;
 
-	acquire_console_sem();
+	console_lock();
 	for_each_console(c) {
 		if (!c->device)
 			continue;
@@ -1197,7 +1205,7 @@ struct tty_driver *console_device(int *index)
 		if (driver)
 			break;
 	}
-	release_console_sem();
+	console_unlock();
 	return driver;
 }
 
@@ -1208,17 +1216,17 @@ struct tty_driver *console_device(int *index)
  */
 void console_stop(struct console *console)
 {
-	acquire_console_sem();
+	console_lock();
 	console->flags &= ~CON_ENABLED;
-	release_console_sem();
+	console_unlock();
 }
 EXPORT_SYMBOL(console_stop);
 
 void console_start(struct console *console)
 {
-	acquire_console_sem();
+	console_lock();
 	console->flags |= CON_ENABLED;
-	release_console_sem();
+	console_unlock();
 }
 EXPORT_SYMBOL(console_start);
 
@@ -1340,7 +1348,7 @@ void register_console(struct console *newcon)
 	 *	Put this console in the list - keep the
 	 *	preferred driver at the head of the list.
 	 */
-	acquire_console_sem();
+	console_lock();
 	if ((newcon->flags & CON_CONSDEV) || console_drivers == NULL) {
 		newcon->next = console_drivers;
 		console_drivers = newcon;
@@ -1352,14 +1360,14 @@ void register_console(struct console *newcon)
 	}
 	if (newcon->flags & CON_PRINTBUFFER) {
 		/*
-		 * release_console_sem() will print out the buffered messages
+		 * console_unlock(); will print out the buffered messages
 		 * for us.
 		 */
 		spin_lock_irqsave(&logbuf_lock, flags);
 		con_start = log_start;
 		spin_unlock_irqrestore(&logbuf_lock, flags);
 	}
-	release_console_sem();
+	console_unlock();
 	console_sysfs_notify();
 
 	/*
@@ -1396,7 +1404,7 @@ int unregister_console(struct console *console)
 		return braille_unregister_console(console);
 #endif
 
-	acquire_console_sem();
+	console_lock();
 	if (console_drivers == console) {
 		console_drivers=console->next;
 		res = 0;
@@ -1418,7 +1426,7 @@ int unregister_console(struct console *console)
 	if (console_drivers != NULL && console->flags & CON_CONSDEV)
 		console_drivers->flags |= CON_CONSDEV;
 
-	release_console_sem();
+	console_unlock();
 	console_sysfs_notify();
 	return res;
 }
-- 
1.7.2.3

From - Thu Nov 08 21:06:46 2018
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From: torbenh <torbenh@gmx.de>
Newsgroups: gmane.comp.video.dri.devel,gmane.comp.emulators.xen.devel,gmane.linux.ports.parisc,gmane.linux.ports.geode,gmane.linux.ports.arm.omap,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] change acquire/release_console_sem() to
	console_lock/unlock()
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Date: Thu, 20 Jan 2011 17:55:02 +0100
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To: Greg KH <gregkh@suse.de>
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On Thu, Jan 20, 2011 at 08:34:48AM -0800, Greg KH wrote:
> On Thu, Jan 20, 2011 at 04:58:13PM +0100, Torben Hohn wrote:
> > the -rt patches change the console_semaphore to console_mutex.
> > so a quite large chunk of the patches changes all
> > acquire/release_console_sem() to acquire/release_console_mutex()
> 
> Why not just change the functionality of the existing function to be a
> mutex in the rt patches, instead of having to rename it everywhere?

i hope that Thomas already did this in his upcoming -rt series.

> 
> > this commit makes things use more neutral function names
> > which dont make implications about the underlying lock.
> > 
> > the only real change is the return value of console_trylock
> > which is inverted from try_acquire_console_sem()
> > 
> > Signed-off-by: Torben Hohn <torbenh@gmx.de>
> > CC: Thomas Gleixner <tglx@tglx.de>
> 
> I don't mind this rename, but is it really going to help anything out?
> What's the odds of the -rt portion of this patch ever making it to
> mainline?

the -rt portion only changes the semaphore to a mutex.
since the console_sem is used with mutex semantics, i dont see any
reason, not to merge that portion too. 

i am just trying to shrink the -rt patch to make it more maintanable :)

> 
> thanks,
> 
> greg k-h

-- 
torben Hohn

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Subject: [PATCH] parisc: improve vmap flush/invalidate
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On parisc, we never implemented invalidate_kernel_vmap_range() because
it was unnecessary for the xfs use case.  However, we do need to
implement an invalidate for the opposite use case (which occurred in a
recent NFS change) where the user wants to read through the vmap range
and write via the kernel address.  There's an additional complexity to
this in that if the page has no userspace mappings, it might have dirty
cache lines in the kernel (indicated by the PG_dcache_dirty bit).  In
order to get full coherency, we need to flush these pages through the
kernel mapping before invalidating the vmap range.

James

---

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index f388a85..df6c56d 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -37,6 +37,13 @@ void flush_cache_all_local(void);
 void flush_cache_all(void);
 void flush_cache_mm(struct mm_struct *mm);
 
+#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
+void flush_kernel_dcache_page_addr(void *addr);
+static inline void flush_kernel_dcache_page(struct page *page)
+{
+	flush_kernel_dcache_page_addr(page_address(page));
+}
+
 #define flush_kernel_dcache_range(start,size) \
 	flush_kernel_dcache_range_asm((start), (start)+(size));
 /* vmap range flushes and invalidates.  Architecturally, we don't need
@@ -50,6 +57,16 @@ static inline void flush_kernel_vmap_range(void *vaddr, int size)
 }
 static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
 {
+	unsigned long start = (unsigned long)vaddr;
+	void *cursor = vaddr;
+
+	for ( ; cursor < vaddr + size; cursor += PAGE_SIZE) {
+		struct page *page = vmalloc_to_page(cursor);
+
+		if (test_and_clear_bit(PG_dcache_dirty, &page->flags))
+			flush_kernel_dcache_page(page);
+	}
+	flush_kernel_dcache_range_asm(start, start + size);
 }
 
 #define flush_cache_vmap(start, end)		flush_cache_all()
@@ -98,13 +115,6 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 		flush_user_dcache_page(vmaddr);
 }
 
-#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
-void flush_kernel_dcache_page_addr(void *addr);
-static inline void flush_kernel_dcache_page(struct page *page)
-{
-	flush_kernel_dcache_page_addr(page_address(page));
-}

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From: Andrew Morton <akpm@linux-foundation.org>
Newsgroups: gmane.linux.kernel.virtualization,gmane.comp.emulators.xen.devel,gmane.linux.ports.parisc,gmane.linux.ports.geode,gmane.linux.ports.arm.omap,gmane.linux.ports.arm.kernel,gmane.comp.video.dri.devel,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] change acquire/release_console_sem() to
	console_lock/unlock()
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Cc: xen-devel@lists.xensource.com, Kees Cook <kees.cook@canonical.com>,
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To: torbenh <torbenh@gmx.de>
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On Thu, 20 Jan 2011 17:55:02 +0100
torbenh <torbenh@gmx.de> wrote:

> On Thu, Jan 20, 2011 at 08:34:48AM -0800, Greg KH wrote:
> > On Thu, Jan 20, 2011 at 04:58:13PM +0100, Torben Hohn wrote:
> > > the -rt patches change the console_semaphore to console_mutex.
> > > so a quite large chunk of the patches changes all
> > > acquire/release_console_sem() to acquire/release_console_mutex()
> > 
> > Why not just change the functionality of the existing function to be a
> > mutex in the rt patches, instead of having to rename it everywhere?
> 
> i hope that Thomas already did this in his upcoming -rt series.
> 
> > 
> > > this commit makes things use more neutral function names
> > > which dont make implications about the underlying lock.
> > > 
> > > the only real change is the return value of console_trylock
> > > which is inverted from try_acquire_console_sem()
> > > 
> > > Signed-off-by: Torben Hohn <torbenh@gmx.de>
> > > CC: Thomas Gleixner <tglx@tglx.de>
> > 
> > I don't mind this rename, but is it really going to help anything out?
> > What's the odds of the -rt portion of this patch ever making it to
> > mainline?
> 
> the -rt portion only changes the semaphore to a mutex.
> since the console_sem is used with mutex semantics, i dont see any
> reason, not to merge that portion too. 
> 
> i am just trying to shrink the -rt patch to make it more maintanable :)
> 

Yeah, I think it's a better name and if we can indeed switch that
semaphore to a mutex then that's a good thing to do.

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Subject: Re: [PATCH] change acquire/release_console_sem() to
	console_lock/unlock()
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On Fri, 21 Jan 2011 09:10:06 +0100 Geert Uytterhoeven <geert@linux-m68k.org> wrote:

> include/linux/mutex.h:
> 
> /*
>  * NOTE: mutex_trylock() follows the spin_trylock() convention,
>  *       not the down_trylock() convention!
>  *
>  * Returns 1 if the mutex has been acquired successfully, and 0 on contention.
>  */
> extern int mutex_trylock(struct mutex *lock);
> 
> So that's why the return value was inverted (when treating it as a boolean).
> I can understand that.
> 
> However:
> 
> +/**
> + * console_trylock - try to lock the console system for exclusive use.
> + *
> + * Tried to acquire a lock which guarantees that the caller has
> + * exclusive access to the console system and the console_drivers list.
> + *
> + * returns -1 on success, and 0 on failure to acquire the lock.
> + */
> +int console_trylock(void)
> 
> So this one returns -1 on success, not 1? Why?

Yup.  All callers just test for non-zero, so...

--- a/kernel/printk.c~change-acquire-release_console_sem-to-console_lock-unlock-fix-2
+++ a/kernel/printk.c
@@ -1058,7 +1058,7 @@ EXPORT_SYMBOL(console_lock);
  * Tried to acquire a lock which guarantees that the caller has
  * exclusive access to the console system and the console_drivers list.
  *
- * returns -1 on success, and 0 on failure to acquire the lock.
+ * returns 1 on success, and 0 on failure to acquire the lock.
  */
 int console_trylock(void)
 {
@@ -1070,7 +1070,7 @@ int console_trylock(void)
 	}
 	console_locked = 1;
 	console_may_schedule = 0;
-	return -1;
+	return 1;
 }
 EXPORT_SYMBOL(console_trylock);
 
_

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From: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
Newsgroups: gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.virtualization,gmane.linux.uml.devel,gmane.comp.emulators.xen.devel,gmane.linux.uml.user,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] sched: provide scheduler_ipi()
 callback in response to smp_send_reschedule()
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On Mon, Jan 17, 2011 at 12:41:49PM +0100, Peter Zijlstra wrote:

> I visited existing smp_send_reschedule() implementations and tried to
> add a call to scheduler_ipi() in their handler part, but esp. for MIPS
> I'm not quite sure I actually got all of them.

No, you didn't.  Here are a few more for you to fold into the existing patch.

  Ralf

Signed-off-by: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>

 arch/mips/cavium-octeon/smp.c       |    2 ++
 arch/mips/mti-malta/malta-int.c     |    2 ++
 arch/mips/pmc-sierra/yosemite/smp.c |    4 ++++
 arch/mips/sgi-ip27/ip27-irq.c       |    2 ++
 4 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c
index 391cefe..170684a 100644
--- a/arch/mips/cavium-octeon/smp.c
+++ b/arch/mips/cavium-octeon/smp.c
@@ -44,6 +44,8 @@ static irqreturn_t mailbox_interrupt(int irq, void *dev_id)
 
 	if (action & SMP_CALL_FUNCTION)
 		smp_call_function_interrupt();
+	if (action & SMP_RESCHEDULE_YOURSELF)
+		scheduler_ipi();
 
 	/* Check if we've been told to flush the icache */
 	if (action & SMP_ICACHE_FLUSH)
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index b79b24a..fc7571f 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -309,6 +309,8 @@ static void ipi_call_dispatch(void)
 
 static irqreturn_t ipi_resched_interrupt(int irq, void *dev_id)
 {
+	scheduler_ipi();
+
 	return IRQ_HANDLED;
 }
 
diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c
index efc9e88..2608752 100644
--- a/arch/mips/pmc-sierra/yosemite/smp.c
+++ b/arch/mips/pmc-sierra/yosemite/smp.c
@@ -55,6 +55,8 @@ void titan_mailbox_irq(void)
 
 		if (status & 0x2)
 			smp_call_function_interrupt();
+		if (status & 0x4)
+			scheduler_ipi();
 		break;
 
 	case 1:
@@ -63,6 +65,8 @@ void titan_mailbox_irq(void)
 
 		if (status & 0x2)
 			smp_call_function_interrupt();
+		if (status & 0x4)
+			scheduler_ipi();
 		break;
 	}
 }
diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c
index 6a123ea..81d6548 100644
--- a/arch/mips/sgi-ip27/ip27-irq.c
+++ b/arch/mips/sgi-ip27/ip27-irq.c
@@ -147,8 +147,10 @@ static void ip27_do_irq_mask0(void)
 #ifdef CONFIG_SMP
 	if (pend0 & (1UL << CPU_RESCHED_A_IRQ)) {
 		LOCAL_HUB_CLR_INTR(CPU_RESCHED_A_IRQ);
+		scheduler_ipi();
 	} else if (pend0 & (1UL << CPU_RESCHED_B_IRQ)) {
 		LOCAL_HUB_CLR_INTR(CPU_RESCHED_B_IRQ);
+		scheduler_ipi();
 	} else if (pend0 & (1UL << CPU_CALL_A_IRQ)) {
 		LOCAL_HUB_CLR_INTR(CPU_CALL_A_IRQ);
 		smp_call_function_interrupt();

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On Wed, Jan 12, 2011 at 6:26 AM, Alex Vladimirovich
<porebrik@junkemail.ru> wrote:
> Is any technitian there who has some experience with failing c8000s?
> I got oppressive "System Firmware Hang" according to diagnostic LEDs
> on rear panel.

I have found that HP-PARISC hardware is notoriously difficult to fix,
and usually requires buying another box :-)

If I were you (and I recently had to do this for a c3600):

(a) Find the service manual.

(b) Read the section about diagnostic LEDs.

(c) Follow the recommendations.

If that fails, then the box is likely dead, or the manual will say
"Replace main board", which is the equivalent of getting a new box.

Good luck!

Cheers,
Carlos.
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From - Thu Nov 08 21:06:47 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Need to start dismantling Cupertino PA-RISC Linux
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To: Kyle McMartin <kyle@mcmartin.ca>
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On Mon, 24 Jan 2011, Kyle McMartin wrote:

> On Sun, Jan 23, 2011 at 09:08:15PM -0700, Grant Grundler wrote:
> > On Tue, Jun 22, 2010 at 08:36:15PM -0400, Kyle McMartin wrote:
> > > On Tue, Jun 22, 2010 at 08:33:16PM -0400, John David Anglin wrote:
> > > > I have used up all the spare drives that Grant provided me servicing
> > > > the RS11 and the disk array on hiauly2.  I know Kyle has a spare RS11
> > > > and maybe parts.  Probably, some spare parts for the above would be
> > > > useful but I don't have a huge amount of free time to debug hardware
> > > > issues at the moment.
> > > > 
> > > 
> > > You're welcome to whatever hardware I have here in Ottawa. I'll try to
> > > make a list when I get back to Canada in a few weeks.
> > 
> > Kyle,
> > In case this HW is still laying around, can you generate a HW list please?
> > 
> 
> C3750
> J6700
> RP3440 (quad 1GHz)
> RX2600 (from Martin Hicks, probably WOS's)
> ZX6000
> Bigmama (destined for the scrap heap, has bogus PAL fw that doesn't
> support new PAL cache flush.)
> 712
> 715
> B180
> Various A500
> C8000
> 
> I only really want to keep the C8000, I think, but maybe I'll look and
> see if there's a production one on Ebay. I'm going to talk to various
> people about hosting the RP3440 maybe, but if JDA wants it, he's welcome
> to it. I need to move on to new projects. :/ (I have some newer Sun and
> SGI gear that might need some love someday if I can get the time.)

Kyle has more than enough stuff here in Ottawa to keep GCC support
going, and to help with further kernel development.  A few WD drives
would be useful if there are any still around.

I'm thinking the rp3440 running hpux 11.31 would be very useful as a
comparison base.  If that could be arranged, it would be great.  A
issue came up this week where a 11.31 had a different behavior from
11.11 and 11.23.

Currently, I'm seeing improved stability on my rp3440 running SMP.
James' last patch to improve vmap flush/invalidate seems to be a
a very important change.  Comparing it versus the current code in
update_mmu_cache, it seems we should limit the flush to when
pfn_valid(page_to_pfn(page)) && page_mapping(page) is true.
This seems to have further improved stability and I actually got
through a full GCC build with make -j4 build.  This was something
of a build record, but running the testsuite is still painfully slow.

I'm continuing to test, but I'm hopeful that we are finally gaining
an understanding of the cache issues and the random segvs that result
from cache corruption.  This will make a broader range of machines
usable.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:47 2018
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: 2.6.38-rc3 regression on parisc: segfaults
Date: Wed, 2 Feb 2011 00:00:13 +0200 (EET)
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I have been testing devel kernels on SMP L1000 successfully until 
2.6.38-rc2-00324-g70d1f36 included. The testing means booting the new 
kernel and running aptitude to update to current debian unstable.

Now I tried 2.6.38-rc3 and got a crash from aptitude on 2 out of 2 
tries. Maybe aptitude was broken inbetween but it looks like a kernel 
bug. Retried 2.6.38-rc2-00324-g70d1f36 and that seemed to work fine so 
it's more likely a kernel problem.

What additional information can I provide?

[   74.590000]
[   74.590000] do_page_fault() pid=979 command='aptitude' type=15 address=0x0000002d
[   74.590000]
[   74.590000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   74.590000] PSW: 00000000000001001111111100001111 Not tainted
[   74.590000] r00-03  000000ff0004ff0f 000000004027b5ac 00000000405df23b 000000004067e884
[   74.590000] r04-07  000000004067c860 000000004067e6d0 000000004067e880 00000000c014b7d0
[   74.590000] r08-11  0000000000000001 0000000000000001 000000004067c860 0000000041b082c8
[   74.590000] r12-15  000000004067e730 000000004067e6d0 000000004067c860 000000004067c860
[   74.590000] r16-19  000000004067c860 000000004067e060 0000000000000000 000000004067c860
[   74.590000] r20-23  0000000000000229 0000000000000000 0000000000000000 0000000000000000
[   74.590000] r24-27  fffffffffffffff5 ffffffffffffffd3 000000004067e730 00000000004227a4
[   74.590000] r28-31  000000000000002d 0000000000000000 00000000c014b8c0 00000000402688db
[   74.590000] sr00-03  0000000000228800 0000000000228800 0000000000000000 0000000000228800
[   74.590000] sr04-07  0000000000228800 0000000000228800 0000000000228800 0000000000228800
[   74.590000]
[   74.590000]       VZOUICununcqcqcqcqcqcrmunTDVZOUI
[   74.590000] FPSR: 00001000001000100010000000000000
[   74.590000] FPER1: 00000000
[   74.590000] fr00-03  0822200000000000 0000000000000000 0000000000000000 0000000000000000
[   74.590000] fr04-07  0000000a00000000 0000000000000000 0000000000000000 0000000000000000
[   74.590000] fr08-11  0000000000000000 00000000406cf120 00000000401563e8 00000000404c59d8
[   74.590000] fr12-15  000000000804000f 000000000800000f 00000000401563e8 00000000ffc60460
[   74.590000] fr16-19  00000000406cf120 0000000040639d54 0000000000000046 0000000040599294
[   74.590000] fr20-23  00000000ffc60348 00000000406dd920 0000000000000038 4038000000000000
[   74.590000] fr24-27  0000000000000000 0000000000000000 3ff0000000000000 412e848c00000000
[   74.590000] fr28-31  0000000040599250 00000000ffc60357 00000000ffc60357 00000000405dfba8
[   74.590000]
[   74.590000] IASQ: 0000000000228800 0000000000228800 IAOQ: 00000000405df25b 00000000405df25f
[   74.590000]  IIR: 0f80108b    ISR: 0000000000228800  IOR: 000000000000002d
[   74.590000]  CPU:        0   CR30: 00000000fe050000 CR31: 0000000000008020
[   74.590000]  ORIG_R28: 0000000000000080
[   74.590000]  IAOQ[0]: 00000000405df25b
[   74.590000]  IAOQ[1]: 00000000405df25f
[   74.590000]  RP(r2): 00000000405df23b


-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:06:47 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: 2.6.38-rc3 regression on parisc: segfaults
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On Wed, 2011-02-02 at 00:00 +0200, Meelis Roos wrote:
> I have been testing devel kernels on SMP L1000 successfully until 
> 2.6.38-rc2-00324-g70d1f36 included. The testing means booting the new 
> kernel and running aptitude to update to current debian unstable.
> 
> Now I tried 2.6.38-rc3 and got a crash from aptitude on 2 out of 2 
> tries. Maybe aptitude was broken inbetween but it looks like a kernel 
> bug. Retried 2.6.38-rc2-00324-g70d1f36 and that seemed to work fine so 
> it's more likely a kernel problem.
> 
> What additional information can I provide?

Probably a bisection, if you could.  There have been no parisc patches
between -rc2 and -rc3, so it's coming from outside the architecture.

Thanks,

James


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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: 2.6.38-rc3 regression on parisc: segfaults
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On Tue, Feb 1, 2011 at 5:00 PM, Meelis Roos <mroos@linux.ee> wrote:
> I have been testing devel kernels on SMP L1000 successfully until
> 2.6.38-rc2-00324-g70d1f36 included. The testing means booting the new
> kernel and running aptitude to update to current debian unstable.
>
> Now I tried 2.6.38-rc3 and got a crash from aptitude on 2 out of 2
> tries. Maybe aptitude was broken inbetween but it looks like a kernel
> bug. Retried 2.6.38-rc2-00324-g70d1f36 and that seemed to work fine s=
o
> it's more likely a kernel problem.
>
> What additional information can I provide?
>
> [ =A0 74.590000]
> [ =A0 74.590000] do_page_fault() pid=3D979 command=3D'aptitude' type=3D=
15 address=3D0x0000002d
> [ =A0 74.590000]
> [ =A0 74.590000] =A0 =A0 =A0YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [ =A0 74.590000] PSW: 00000000000001001111111100001111 Not tainted
> [ =A0 74.590000] r00-03 =A0000000ff0004ff0f 000000004027b5ac 00000000=
405df23b 000000004067e884
> [ =A0 74.590000] r04-07 =A0000000004067c860 000000004067e6d0 00000000=
4067e880 00000000c014b7d0
> [ =A0 74.590000] r08-11 =A00000000000000001 0000000000000001 00000000=
4067c860 0000000041b082c8
> [ =A0 74.590000] r12-15 =A0000000004067e730 000000004067e6d0 00000000=
4067c860 000000004067c860
> [ =A0 74.590000] r16-19 =A0000000004067c860 000000004067e060 00000000=
00000000 000000004067c860
> [ =A0 74.590000] r20-23 =A00000000000000229 0000000000000000 00000000=
00000000 0000000000000000
> [ =A0 74.590000] r24-27 =A0fffffffffffffff5 ffffffffffffffd3 00000000=
4067e730 00000000004227a4
> [ =A0 74.590000] r28-31 =A0000000000000002d 0000000000000000 00000000=
c014b8c0 00000000402688db
> [ =A0 74.590000] sr00-03 =A00000000000228800 0000000000228800 0000000=
000000000 0000000000228800
> [ =A0 74.590000] sr04-07 =A00000000000228800 0000000000228800 0000000=
000228800 0000000000228800
> [ =A0 74.590000]
> [ =A0 74.590000] =A0 =A0 =A0 VZOUICununcqcqcqcqcqcrmunTDVZOUI
> [ =A0 74.590000] FPSR: 00001000001000100010000000000000
> [ =A0 74.590000] FPER1: 00000000
> [ =A0 74.590000] fr00-03 =A00822200000000000 0000000000000000 0000000=
000000000 0000000000000000
> [ =A0 74.590000] fr04-07 =A00000000a00000000 0000000000000000 0000000=
000000000 0000000000000000
> [ =A0 74.590000] fr08-11 =A00000000000000000 00000000406cf120 0000000=
0401563e8 00000000404c59d8
> [ =A0 74.590000] fr12-15 =A0000000000804000f 000000000800000f 0000000=
0401563e8 00000000ffc60460
> [ =A0 74.590000] fr16-19 =A000000000406cf120 0000000040639d54 0000000=
000000046 0000000040599294
> [ =A0 74.590000] fr20-23 =A000000000ffc60348 00000000406dd920 0000000=
000000038 4038000000000000
> [ =A0 74.590000] fr24-27 =A00000000000000000 0000000000000000 3ff0000=
000000000 412e848c00000000
> [ =A0 74.590000] fr28-31 =A00000000040599250 00000000ffc60357 0000000=
0ffc60357 00000000405dfba8
> [ =A0 74.590000]
> [ =A0 74.590000] IASQ: 0000000000228800 0000000000228800 IAOQ: 000000=
00405df25b 00000000405df25f
> [ =A0 74.590000] =A0IIR: 0f80108b =A0 =A0ISR: 0000000000228800 =A0IOR=
: 000000000000002d
> [ =A0 74.590000] =A0CPU: =A0 =A0 =A0 =A00 =A0 CR30: 00000000fe050000 =
CR31: 0000000000008020
> [ =A0 74.590000] =A0ORIG_R28: 0000000000000080
> [ =A0 74.590000] =A0IAOQ[0]: 00000000405df25b
> [ =A0 74.590000] =A0IAOQ[1]: 00000000405df25f
> [ =A0 74.590000] =A0RP(r2): 00000000405df23b

The rp (return pointer) is pointing back into what appears to be a
shared library (always loaded around 0x4???????).

The iir (interrupting instruction register) is instruction "0:   0f 80
10 8b     ldw 0(ret0),r11" (you can do this yourself with "disasm"
from http://cvs.parisc-linux.org/build-tools/disasm?revision=3D1.1&view=
=3Dmarkup).

You can see that ret0 is indeed 0x2d (the address of the fault), and
loading 0x0 + 0x2d will cause a fault and kill your program.

However, the failure probably happened earlier.

As James says, you should try to bisect exactly which commit caused the=
 failure.

Cheers,
CArlos.
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> I have been testing devel kernels on SMP L1000 successfully until 
> 2.6.38-rc2-00324-g70d1f36 included. The testing means booting the new 
> kernel and running aptitude to update to current debian unstable.
> 
> Now I tried 2.6.38-rc3 and got a crash from aptitude on 2 out of 2 
> tries. Maybe aptitude was broken inbetween but it looks like a kernel 
> bug. Retried 2.6.38-rc2-00324-g70d1f36 and that seemed to work fine so 
> it's more likely a kernel problem.

If aptitude fails consistently, it should be possible to debug or
isolate to a particular kernel change.  Usually, SMP segvs don't
provide much information as to the cause of the problem.  strace
output and a gdb backtrace would be useful.

I have seen improved SMP stability building with GCC 4.5.3 (try a
recent snap).  This fixes an asm/branch problem.  It seems like James'
flush patch hasn't been pulled.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> If aptitude fails consistently, it should be possible to debug or
> isolate to a particular kernel change.  Usually, SMP segvs don't
> provide much information as to the cause of the problem.  strace
> output and a gdb backtrace would be useful.

It's not failing consitently - it's in different places. I'm bisecting 
now.

-- 
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> > I have been testing devel kernels on SMP L1000 successfully until=20
> > 2.6.38-rc2-00324-g70d1f36 included. The testing means booting the n=
ew=20
> > kernel and running aptitude to update to current debian unstable.
> >=20
> > Now I tried 2.6.38-rc3 and got a crash from aptitude on 2 out of 2=20
> > tries. Maybe aptitude was broken inbetween but it looks like a kern=
el=20
> > bug. Retried 2.6.38-rc2-00324-g70d1f36 and that seemed to work fine=
 so=20
> > it's more likely a kernel problem.
> >=20
> > What additional information can I provide?
>=20
> Probably a bisection, if you could.  There have been no parisc patche=
s
> between -rc2 and -rc3, so it's coming from outside the architecture.

The result is strange :(

6b28405395f7ec492ea69f541cc774adcb9e00ca is the first bad commit
commit 6b28405395f7ec492ea69f541cc774adcb9e00ca
Author: Axel K=C3=B6llhofer <AxelKoellhofer@web.de>
Date:   Sat Jan 22 14:33:50 2011 -0600

    staging: r8712u: Add new device IDs

    This patch adds several new device ids to the r8712u staging driver=
=2E
    The new ids were retrieved from latest vendor driver (v2.6.6.0.2010=
1111)
    downloadable from www.realtek.com.tw

    Signed-off-by: Axel Koellhofer <AxelKoellhofer@web.de>
    Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
    Cc: Stable <stable@kernel.org> [2.6.37]
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

:040000 040000 185c3d2c1e98cc99009bfb772ed0779410784110 f5aa903931116f2=
8f803003f594fec3b2a29a6f6 M      drivers

Seems absolutely unrelated - I do not have staging enabled so so no=20
CONFIG_R8712U either.

The "bad" bisects were clearly bad and failed quicky during aptitude=20
list update but the good ones might have needed more stress... or it is=
=20
some alignment-like problem. Will try again starting from these bad=20
bisects to narrow it down, and stress seemingly good ones better.

--=20
Meelis Roos (mroos@linux.ee)
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> If aptitude fails consistently, it should be possible to debug or
> isolate to a particular kernel change.  Usually, SMP segvs don't
> provide much information as to the cause of the problem.  strace
> output and a gdb backtrace would be useful.

strace works but does not tell much to me:

2349  _newselect(1, [0], NULL, NULL, {0, 0}) = 0 (Timeout)
2349  rt_sigaction(SIGTSTP, {0x40664bea, [RT_1 RT_4 RT_5 RT_7 RT_11 RT_12 RT_15 RT_16 RT_18 RT_26], SA_RESTART}, NULL, 8) = 0
2349  futex(0x458e0858, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x458e0850, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = -1 ENOSYS (Function not implemented)
2349  futex(0x458e0858, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
2363  <... futex resumed> )             = 0
2363  futex(0x458e0850, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
2349  <... futex resumed> )             = 1
2349  futex(0x458e0850, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
2363  <... futex resumed> )             = 0
2363  futex(0x458e0850, FUTEX_WAKE_PRIVATE, 1) = 0
2363  futex(0x458e0820, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
2349  <... futex resumed> )             = 1
2349  futex(0x458e0820, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
2363  <... futex resumed> )             = 0
2363  futex(0x458e0820, FUTEX_WAKE_PRIVATE, 1) = 0
2363  rename("/var/lib/apt/lists/partial/ftp.ee.debian.org_debian_dists_unstable_main_source_Sources.diff_2011-02-02-0207.41.decomp", "/var/lib/apt/lists/ftp.ee.debian.org_debian_dists_unstable_main_source_Sources.ed") = 0
2363  stat64("/usr/lib/apt/methods/rred", {st_mode=0, st_size=0, ...}) = 0
2363  pipe([26, 28])                    = 0
2363  pipe([30, 31])                    = 0
2363  fcntl64(26, F_SETFD, FD_CLOEXEC)  = 0
2363  fcntl64(28, F_SETFD, FD_CLOEXEC)  = 0
2363  fcntl64(30, F_SETFD, FD_CLOEXEC)  = 0
2363  fcntl64(31, F_SETFD, FD_CLOEXEC)  = 0
2363  clone( <unfinished ...>
2349  <... futex resumed> )             = 1
2363  <... clone resumed> child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x460df4a8) = 2372
2349  --- SIGSEGV (Segmentation fault) @ 0 (0) ---
2372  rt_sigaction(SIGPIPE, {SIG_DFL, [], SA_RESTART},  <unfinished ...>
2349  write(1, "\33[56;1H\33[34h\33[?25h", 18 <unfinished ...>

Something futex-related. Full log temprarilty available at 
http://www.cs.ut.ee/~mroos/aptitude-strace.txt

gdb does not seem to work well:

root@hernes:~# gdb aptitude
GNU gdb (GDB) 7.2-debian
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "hppa-linux-gnu".
For bug reporting instructions, please see:<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/aptitude...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/aptitude
[Thread debugging using libthread_db enabled]
warning: Can't attach LWP 1075813436: No such process
/tmp/buildd/gdb-7.2/gdb/linux-thread-db.c:392: internal-error: thread_get_info_callback: Assertion `inout->thread_info != NULL' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:06:48 2018
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Subject: Re: 2.6.38-rc3 regression on parisc: segfaults
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On Fri, 04 Feb 2011, Meelis Roos wrote:

> 2363  clone( <unfinished ...>
> 2349  <... futex resumed> )             = 1
> 2363  <... clone resumed> child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x460df4a8) = 2372
> 2349  --- SIGSEGV (Segmentation fault) @ 0 (0) ---
> 2372  rt_sigaction(SIGPIPE, {SIG_DFL, [], SA_RESTART},  <unfinished ...>
> 2349  write(1, "\33[56;1H\33[34h\33[?25h", 18 <unfinished ...>
> 
> Something futex-related. Full log temprarilty available at 
> http://www.cs.ut.ee/~mroos/aptitude-strace.txt

This is possibly the infamous COW bug.

> gdb does not seem to work well:

I think the segv is in the dynamic loader.  Try gdb on dynamic loader
and aptitude as run argument.  Also suggest adding /usr/lib/debug to
LD_LIBRARY_PATH.

Dave
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On Fri, Feb 4, 2011 at 10:07 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> On Fri, 04 Feb 2011, Meelis Roos wrote:
>
>> 2363 =A0clone( <unfinished ...>
>> 2349 =A0<... futex resumed> ) =A0 =A0 =A0 =A0 =A0 =A0 =3D 1
>> 2363 =A0<... clone resumed> child_stack=3D0, flags=3DCLONE_CHILD_CLE=
ARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=3D0x460df4a8) =3D 2372
>> 2349 =A0--- SIGSEGV (Segmentation fault) @ 0 (0) ---
>> 2372 =A0rt_sigaction(SIGPIPE, {SIG_DFL, [], SA_RESTART}, =A0<unfinis=
hed ...>
>> 2349 =A0write(1, "\33[56;1H\33[34h\33[?25h", 18 <unfinished ...>
>>
>> Something futex-related. Full log temprarilty available at
>> http://www.cs.ut.ee/~mroos/aptitude-strace.txt
>
> This is possibly the infamous COW bug.

The COW bug that is triggered by a COW from an LWS-CAS? The solution
to which is to use locks around the LWS-CAS even on UP? I'd forgotten
about this issue actually, I should push that patch out to James.

Cheers,
Carlos.
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From - Thu Nov 08 21:06:48 2018
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> > This is possibly the infamous COW bug.
> 
> The COW bug that is triggered by a COW from an LWS-CAS? The solution
> to which is to use locks around the LWS-CAS even on UP? I'd forgotten
> about this issue actually, I should push that patch out to James.

I was actually thinking of the fork/clone race for which there are various
testcases on the wiki.  The aptitude segv is with a SMP kernel, so I don't
think this is the UP LWS_CAS issue.  However, I agree you should push
the change.

Dave
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Subject: [patch 0/8] parisc: Convert to new irq_chip functions
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The following series converts parisc to the new irq_chip functions and
sets GENERIC_HARDIRQS_NO_DEPRECATED. Compile tested only.

Thanks,

	tglx

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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 drivers/parisc/eisa.c |   12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

Index: linux-next/drivers/parisc/eisa.c
===================================================================
--- linux-next.orig/drivers/parisc/eisa.c
+++ linux-next/drivers/parisc/eisa.c
@@ -144,8 +144,9 @@ static unsigned int eisa_irq_level __rea
 
 
 /* called by free irq */
-static void eisa_mask_irq(unsigned int irq)
+static void eisa_mask_irq(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
 	unsigned long flags;
 
 	EISA_DBG("disable irq %d\n", irq);
@@ -164,8 +165,9 @@ static void eisa_mask_irq(unsigned int i
 }
 
 /* called by request irq */
-static void eisa_unmask_irq(unsigned int irq)
+static void eisa_unmask_irq(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
 	unsigned long flags;
 	EISA_DBG("enable irq %d\n", irq);
 		
@@ -183,9 +185,9 @@ static void eisa_unmask_irq(unsigned int
 }
 
 static struct irq_chip eisa_interrupt_type = {
-	.name	=	"EISA",
-	.unmask	=	eisa_unmask_irq,
-	.mask	=	eisa_mask_irq,
+	.name		=	"EISA",
+	.irq_unmask	=	eisa_unmask_irq,
+	.irq_mask	=	eisa_mask_irq,
 };
 
 static irqreturn_t eisa_irq(int wax_irq, void *intr_dev)


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From: Thomas Gleixner <tglx@linutronix.de>
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Subject: [patch 1/8] parisc: Convert cpu irq_chip to new functions
Date: Sun, 06 Feb 2011 20:45:52 -0000
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Fixup temporarily ioasapic, which shares functions with the cpu chip.
Remove unused no_*_irq function declarations.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/parisc/include/asm/irq.h |   13 ++-------
 arch/parisc/kernel/irq.c      |   60 ++++++++++++++++++++++++------------------
 drivers/parisc/iosapic.c      |    7 ++--
 3 files changed, 43 insertions(+), 37 deletions(-)

Index: linux-next/arch/parisc/include/asm/irq.h
===================================================================
--- linux-next.orig/arch/parisc/include/asm/irq.h
+++ linux-next/arch/parisc/include/asm/irq.h
@@ -32,15 +32,10 @@ static __inline__ int irq_canonicalize(i
 }
 
 struct irq_chip;
+struct irq_data;
 
-/*
- * Some useful "we don't have to do anything here" handlers.  Should
- * probably be provided by the generic code.
- */
-void no_ack_irq(unsigned int irq);
-void no_end_irq(unsigned int irq);
-void cpu_ack_irq(unsigned int irq);
-void cpu_eoi_irq(unsigned int irq);
+void cpu_ack_irq(struct irq_data *d);
+void cpu_eoi_irq(struct irq_data *d);
 
 extern int txn_alloc_irq(unsigned int nbits);
 extern int txn_claim_irq(int);
@@ -49,7 +44,7 @@ extern unsigned long txn_alloc_addr(unsi
 extern unsigned long txn_affinity_addr(unsigned int irq, int cpu);
 
 extern int cpu_claim_irq(unsigned int irq, struct irq_chip *, void *);
-extern int cpu_check_affinity(unsigned int irq, const struct cpumask *dest);
+extern int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest);
 
 /* soft power switch support (power.c) */
 extern struct tasklet_struct power_tasklet;
Index: linux-next/arch/parisc/kernel/irq.c
===================================================================
--- linux-next.orig/arch/parisc/kernel/irq.c
+++ linux-next/arch/parisc/kernel/irq.c
@@ -52,9 +52,9 @@ static volatile unsigned long cpu_eiem =
 */
 static DEFINE_PER_CPU(unsigned long, local_ack_eiem) = ~0UL;
 
-static void cpu_mask_irq(unsigned int irq)
+static void cpu_mask_irq(struct irq_data *d)
 {
-	unsigned long eirr_bit = EIEM_MASK(irq);
+	unsigned long eirr_bit = EIEM_MASK(d->irq);
 
 	cpu_eiem &= ~eirr_bit;
 	/* Do nothing on the other CPUs.  If they get this interrupt,
@@ -63,7 +63,7 @@ static void cpu_mask_irq(unsigned int ir
 	 * then gets disabled */
 }
 
-static void cpu_unmask_irq(unsigned int irq)
+static void __cpu_unmask_irq(unsigned int irq)
 {
 	unsigned long eirr_bit = EIEM_MASK(irq);
 
@@ -75,9 +75,14 @@ static void cpu_unmask_irq(unsigned int 
 	smp_send_all_nop();
 }
 
-void cpu_ack_irq(unsigned int irq)
+static void cpu_unmask_irq(struct irq_data *d)
+{
+	__cpu_unmask_irq(d->irq);
+}
+
+void cpu_ack_irq(struct irq_data *d)
 {
-	unsigned long mask = EIEM_MASK(irq);
+	unsigned long mask = EIEM_MASK(d->irq);
 	int cpu = smp_processor_id();
 
 	/* Clear in EIEM so we can no longer process */
@@ -90,9 +95,9 @@ void cpu_ack_irq(unsigned int irq)
 	mtctl(mask, 23);
 }
 
-void cpu_eoi_irq(unsigned int irq)
+void cpu_eoi_irq(struct irq_data *d)
 {
-	unsigned long mask = EIEM_MASK(irq);
+	unsigned long mask = EIEM_MASK(d->irq);
 	int cpu = smp_processor_id();
 
 	/* set it in the eiems---it's no longer in process */
@@ -103,15 +108,16 @@ void cpu_eoi_irq(unsigned int irq)
 }
 
 #ifdef CONFIG_SMP
-int cpu_check_affinity(unsigned int irq, const struct cpumask *dest)
+int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest)
 {
 	int cpu_dest;
 
 	/* timer and ipi have to always be received on all CPUs */
 	if (CHECK_IRQ_PER_CPU(irq)) {
 		/* Bad linux design decision.  The mask has already
-		 * been set; we must reset it */
-		cpumask_setall(irq_desc[irq].affinity);
+		 * been set; we must reset it. Will fix - tglx
+		 */
+		cpumask_setall(d->affinity);
 		return -EINVAL;
 	}
 
@@ -121,33 +127,34 @@ int cpu_check_affinity(unsigned int irq,
 	return cpu_dest;
 }
 
-static int cpu_set_affinity_irq(unsigned int irq, const struct cpumask *dest)
+static int cpu_set_affinity_irq(struct irq_data *d, const struct cpumask *dest,
+				bool force))
 {
 	int cpu_dest;
 
-	cpu_dest = cpu_check_affinity(irq, dest);
+	cpu_dest = cpu_check_affinity(d->irq, dest);
 	if (cpu_dest < 0)
 		return -1;
 
-	cpumask_copy(irq_desc[irq].affinity, dest);
+	cpumask_copy(d->affinity, dest);
 
 	return 0;
 }
 #endif
 
 static struct irq_chip cpu_interrupt_type = {
-	.name		= "CPU",
-	.mask		= cpu_mask_irq,
-	.unmask		= cpu_unmask_irq,
-	.ack		= cpu_ack_irq,
-	.eoi		= cpu_eoi_irq,
+	.name			= "CPU",
+	.irq_mask		= cpu_mask_irq,
+	.irq_unmask		= cpu_unmask_irq,
+	.irq_ack		= cpu_ack_irq,
+	.irq_eoi		= cpu_eoi_irq,
 #ifdef CONFIG_SMP
-	.set_affinity	= cpu_set_affinity_irq,
+	.irq_set_affinity	= cpu_set_affinity_irq,
 #endif
 	/* XXX: Needs to be written.  We managed without it so far, but
 	 * we really ought to write it.
 	 */
-	.retrigger	= NULL,
+	.irq_retrigger	= NULL,
 };
 
 int show_interrupts(struct seq_file *p, void *v)
@@ -233,14 +240,14 @@ int cpu_claim_irq(unsigned int irq, stru
 {
 	if (irq_desc[irq].action)
 		return -EBUSY;
-	if (irq_desc[irq].chip != &cpu_interrupt_type)
+	if (get_irq_chip(irq) != &cpu_interrupt_type)
 		return -EBUSY;
 
 	/* for iosapic interrupts */
 	if (type) {
 		set_irq_chip_and_handler(irq, type, handle_percpu_irq);
 		set_irq_chip_data(irq, data);
-		cpu_unmask_irq(irq);
+		__cpu_unmask_irq(irq);
 	}
 	return 0;
 }
@@ -289,7 +296,8 @@ int txn_alloc_irq(unsigned int bits_wide
 unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 {
 #ifdef CONFIG_SMP
-	cpumask_copy(irq_desc[irq].affinity, cpumask_of(cpu));
+	struct irq_data *d = get_irq_data(irq);
+	cpumask_copy(d->affinity, cpumask_of(cpu));
 #endif
 
 	return per_cpu(cpu_data, cpu).txn_addr;
@@ -333,6 +341,7 @@ void do_cpu_irq_mask(struct pt_regs *reg
 	unsigned long eirr_val;
 	int irq, cpu = smp_processor_id();
 #ifdef CONFIG_SMP
+	struct irq_desc *desc;
 	cpumask_t dest;
 #endif
 
@@ -346,8 +355,9 @@ void do_cpu_irq_mask(struct pt_regs *reg
 	irq = eirr_to_irq(eirr_val);
 
 #ifdef CONFIG_SMP
-	cpumask_copy(&dest, irq_desc[irq].affinity);
-	if (CHECK_IRQ_PER_CPU(irq_desc[irq].status) &&
+	desc = irq_to_desc(irq);
+	cpumask_copy(&dest, desc->irq_data.affinity);
+	if (CHECK_IRQ_PER_CPU(desc->status) &&
 	    !cpu_isset(smp_processor_id(), dest)) {
 		int cpu = first_cpu(dest);
 
Index: linux-next/drivers/parisc/iosapic.c
===================================================================
--- linux-next.orig/drivers/parisc/iosapic.c
+++ linux-next/drivers/parisc/iosapic.c
@@ -676,7 +676,7 @@ static void iosapic_eoi_irq(unsigned int
 	struct vector_info *vi = get_irq_chip_data(irq);
 
 	iosapic_eoi(vi->eoi_addr, vi->eoi_data);
-	cpu_eoi_irq(irq);
+	cpu_eoi_irq(&irq_desc[irq].irq_data);
 }
 
 #ifdef CONFIG_SMP
@@ -688,7 +688,8 @@ static int iosapic_set_affinity_irq(unsi
 	unsigned long flags;
 	int dest_cpu;
 
-	dest_cpu = cpu_check_affinity(irq, dest);
+	/* Temporary  irq_desc hack */
+	dest_cpu = cpu_check_affinity(&irq_desc[irq].irq_data, dest);
 	if (dest_cpu < 0)
 		return -1;
 
@@ -711,7 +712,7 @@ static struct irq_chip iosapic_interrupt
 	.name	=	"IO-SAPIC-level",
 	.unmask	=	iosapic_unmask_irq,
 	.mask	=	iosapic_mask_irq,
-	.ack	=	cpu_ack_irq,
+	.irq_ack	=	cpu_ack_irq,
 	.eoi	=	iosapic_eoi_irq,
 #ifdef CONFIG_SMP
 	.set_affinity =	iosapic_set_affinity_irq,


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From: Thomas Gleixner <tglx@linutronix.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [patch 2/8] parisc: Convert dino irq_chip to new functions
Date: Sun, 06 Feb 2011 20:45:54 -0000
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 drivers/parisc/dino.c |   22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

Index: linux-next/drivers/parisc/dino.c
===================================================================
--- linux-next.orig/drivers/parisc/dino.c
+++ linux-next/drivers/parisc/dino.c
@@ -296,25 +296,25 @@ static struct pci_port_ops dino_port_ops
 	.outl	= dino_out32
 };
 
-static void dino_mask_irq(unsigned int irq)
+static void dino_mask_irq(struct irq_data *d)
 {
-	struct dino_device *dino_dev = get_irq_chip_data(irq);
-	int local_irq = gsc_find_local_irq(irq, dino_dev->global_irq, DINO_LOCAL_IRQS);
+	struct dino_device *dino_dev = irq_data_get_irq_chip_data(d);
+	int local_irq = gsc_find_local_irq(d->irq, dino_dev->global_irq, DINO_LOCAL_IRQS);
 
-	DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, irq);
+	DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, d->irq);
 
 	/* Clear the matching bit in the IMR register */
 	dino_dev->imr &= ~(DINO_MASK_IRQ(local_irq));
 	__raw_writel(dino_dev->imr, dino_dev->hba.base_addr+DINO_IMR);
 }
 
-static void dino_unmask_irq(unsigned int irq)
+static void dino_unmask_irq(struct irq_data *d)
 {
-	struct dino_device *dino_dev = get_irq_chip_data(irq);
-	int local_irq = gsc_find_local_irq(irq, dino_dev->global_irq, DINO_LOCAL_IRQS);
+	struct dino_device *dino_dev = irq_data_get_irq_chip_data(d);
+	int local_irq = gsc_find_local_irq(d->irq, dino_dev->global_irq, DINO_LOCAL_IRQS);
 	u32 tmp;
 
-	DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, irq);
+	DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, d->irq);
 
 	/*
 	** clear pending IRQ bits
@@ -346,9 +346,9 @@ static void dino_unmask_irq(unsigned int
 }
 
 static struct irq_chip dino_interrupt_type = {
-	.name	= "GSC-PCI",
-	.unmask	= dino_unmask_irq,
-	.mask	= dino_mask_irq,
+	.name		= "GSC-PCI",
+	.irq_unmask	= dino_unmask_irq,
+	.irq_mask	= dino_mask_irq,
 };
 
 


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Subject: [patch 4/8] parisc: Convert gsc irq_chip to new functions
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 drivers/parisc/gsc.c |   22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

Index: linux-next/drivers/parisc/gsc.c
===================================================================
--- linux-next.orig/drivers/parisc/gsc.c
+++ linux-next/drivers/parisc/gsc.c
@@ -105,13 +105,13 @@ int gsc_find_local_irq(unsigned int irq,
 	return NO_IRQ;
 }
 
-static void gsc_asic_mask_irq(unsigned int irq)
+static void gsc_asic_mask_irq(struct irq_data *d)
 {
-	struct gsc_asic *irq_dev = get_irq_chip_data(irq);
-	int local_irq = gsc_find_local_irq(irq, irq_dev->global_irq, 32);
+	struct gsc_asic *irq_dev = irq_data_get_irq_chip_data(d);
+	int local_irq = gsc_find_local_irq(d->irq, irq_dev->global_irq, 32);
 	u32 imr;
 
-	DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __func__, irq,
+	DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __func__, d->irq,
 			irq_dev->name, imr);
 
 	/* Disable the IRQ line by clearing the bit in the IMR */
@@ -120,13 +120,13 @@ static void gsc_asic_mask_irq(unsigned i
 	gsc_writel(imr, irq_dev->hpa + OFFSET_IMR);
 }
 
-static void gsc_asic_unmask_irq(unsigned int irq)
+static void gsc_asic_unmask_irq(struct irq_data *d)
 {
-	struct gsc_asic *irq_dev = get_irq_chip_data(irq);
-	int local_irq = gsc_find_local_irq(irq, irq_dev->global_irq, 32);
+	struct gsc_asic *irq_dev = irq_data_get_irq_chip_data(d);
+	int local_irq = gsc_find_local_irq(d->irq, irq_dev->global_irq, 32);
 	u32 imr;
 
-	DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __func__, irq,
+	DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __func__, d->irq,
 			irq_dev->name, imr);
 
 	/* Enable the IRQ line by setting the bit in the IMR */
@@ -140,9 +140,9 @@ static void gsc_asic_unmask_irq(unsigned
 }
 
 static struct irq_chip gsc_asic_interrupt_type = {
-	.name	=	"GSC-ASIC",
-	.unmask	=	gsc_asic_unmask_irq,
-	.mask	=	gsc_asic_mask_irq,
+	.name		=	"GSC-ASIC",
+	.irq_unmask	=	gsc_asic_unmask_irq,
+	.irq_mask	=	gsc_asic_mask_irq,
 };
 
 int gsc_assign_irq(struct irq_chip *type, void *data)


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From: Thomas Gleixner <tglx@linutronix.de>
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Subject: [patch 5/8] parisc: Convert iosapic irq_chip to new functions
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 drivers/parisc/iosapic.c |   37 ++++++++++++++++++-------------------
 1 file changed, 18 insertions(+), 19 deletions(-)

Index: linux-next/drivers/parisc/iosapic.c
===================================================================
--- linux-next.orig/drivers/parisc/iosapic.c
+++ linux-next/drivers/parisc/iosapic.c
@@ -615,10 +615,10 @@ iosapic_set_irt_data( struct vector_info
 }
 
 
-static void iosapic_mask_irq(unsigned int irq)
+static void iosapic_mask_irq(struct irq_data *d)
 {
 	unsigned long flags;
-	struct vector_info *vi = get_irq_chip_data(irq);
+	struct vector_info *vi = irq_data_get_irq_chip_data(d);
 	u32 d0, d1;
 
 	spin_lock_irqsave(&iosapic_lock, flags);
@@ -628,9 +628,9 @@ static void iosapic_mask_irq(unsigned in
 	spin_unlock_irqrestore(&iosapic_lock, flags);
 }
 
-static void iosapic_unmask_irq(unsigned int irq)
+static void iosapic_unmask_irq(struct irq_data *d)
 {
-	struct vector_info *vi = get_irq_chip_data(irq);
+	struct vector_info *vi = irq_data_get_irq_chip_data(d);
 	u32 d0, d1;
 
 	/* data is initialized by fixup_irq */
@@ -666,34 +666,33 @@ printk("\n");
 	 * enables their IRQ. It can lead to "interesting" race conditions
 	 * in the driver initialization sequence.
 	 */
-	DBG(KERN_DEBUG "enable_irq(%d): eoi(%p, 0x%x)\n", irq,
+	DBG(KERN_DEBUG "enable_irq(%d): eoi(%p, 0x%x)\n", d->irq,
 			vi->eoi_addr, vi->eoi_data);
 	iosapic_eoi(vi->eoi_addr, vi->eoi_data);
 }
 
-static void iosapic_eoi_irq(unsigned int irq)
+static void iosapic_eoi_irq(struct irq_data *d)
 {
-	struct vector_info *vi = get_irq_chip_data(irq);
+	struct vector_info *vi = irq_data_get_irq_chip_data(d);
 
 	iosapic_eoi(vi->eoi_addr, vi->eoi_data);
-	cpu_eoi_irq(&irq_desc[irq].irq_data);
+	cpu_eoi_irq(d);
 }
 
 #ifdef CONFIG_SMP
-static int iosapic_set_affinity_irq(unsigned int irq,
-				     const struct cpumask *dest)
+static int iosapic_set_affinity_irq(struct irq_data *d,
+				    const struct cpumask *dest, bool force)
 {
-	struct vector_info *vi = get_irq_chip_data(irq);
+	struct vector_info *vi = irq_data_get_irq_chip_data(d);
 	u32 d0, d1, dummy_d0;
 	unsigned long flags;
 	int dest_cpu;
 
-	/* Temporary  irq_desc hack */
-	dest_cpu = cpu_check_affinity(&irq_desc[irq].irq_data, dest);
+	dest_cpu = cpu_check_affinity(d, dest);
 	if (dest_cpu < 0)
 		return -1;
 
-	cpumask_copy(irq_desc[irq].affinity, cpumask_of(dest_cpu));
+	cpumask_copy(d->affinity, cpumask_of(dest_cpu));
 	vi->txn_addr = txn_affinity_addr(irq, dest_cpu);
 
 	spin_lock_irqsave(&iosapic_lock, flags);
@@ -709,13 +708,13 @@ static int iosapic_set_affinity_irq(unsi
 #endif
 
 static struct irq_chip iosapic_interrupt_type = {
-	.name	=	"IO-SAPIC-level",
-	.unmask	=	iosapic_unmask_irq,
-	.mask	=	iosapic_mask_irq,
+	.name		=	"IO-SAPIC-level",
+	.irq_unmask	=	iosapic_unmask_irq,
+	.irq_mask	=	iosapic_mask_irq,
 	.irq_ack	=	cpu_ack_irq,
-	.eoi	=	iosapic_eoi_irq,
+	.irq_eoi	=	iosapic_eoi_irq,
 #ifdef CONFIG_SMP
-	.set_affinity =	iosapic_set_affinity_irq,
+	.irq_set_affinity =	iosapic_set_affinity_irq,
 #endif
 };
 


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From: Thomas Gleixner <tglx@linutronix.de>
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Subject: [patch 6/8] parisc: Convert superio irq_chip to new functions
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 drivers/parisc/superio.c |   12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

Index: linux-next/drivers/parisc/superio.c
===================================================================
--- linux-next.orig/drivers/parisc/superio.c
+++ linux-next/drivers/parisc/superio.c
@@ -286,8 +286,9 @@ superio_init(struct pci_dev *pcidev)
 }
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_LIO, superio_init);
 
-static void superio_mask_irq(unsigned int irq)
+static void superio_mask_irq(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
 	u8 r8;
 
 	if ((irq < 1) || (irq == 2) || (irq > 7)) {
@@ -303,8 +304,9 @@ static void superio_mask_irq(unsigned in
 	outb (r8,IC_PIC1+1);
 }
 
-static void superio_unmask_irq(unsigned int irq)
+static void superio_unmask_irq(struct irq_data *d)
 {
+	unsigned int irq = d->irq;
 	u8 r8;
 
 	if ((irq < 1) || (irq == 2) || (irq > 7)) {
@@ -320,9 +322,9 @@ static void superio_unmask_irq(unsigned 
 }
 
 static struct irq_chip superio_interrupt_type = {
-	.name	=	SUPERIO,
-	.unmask	=	superio_unmask_irq,
-	.mask	=	superio_mask_irq,
+	.name		=	SUPERIO,
+	.irq_unmask	=	superio_unmask_irq,
+	.irq_mask	=	superio_mask_irq,
 };
 
 #ifdef DEBUG_SUPERIO_INIT


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From: Thomas Gleixner <tglx@linutronix.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [patch 7/8] parisc: Prepare show_interrupts for
	GENERIC_HARDIRQS_NO_DEPRECATED
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chip moves to irq_data

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/parisc/kernel/irq.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-next/arch/parisc/kernel/irq.c
===================================================================
--- linux-next.orig/arch/parisc/kernel/irq.c
+++ linux-next/arch/parisc/kernel/irq.c
@@ -188,7 +188,7 @@ int show_interrupts(struct seq_file *p, 
 		seq_printf(p, "%10u ", kstat_irqs(i));
 #endif
 
-		seq_printf(p, " %14s", irq_desc[i].chip->name);
+		seq_printf(p, " %14s", irq_desc[i].irq_data.chip->name);
 #ifndef PARISC_IRQ_CR16_COUNTS
 		seq_printf(p, "  %s", action->name);
 


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All chips converted.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/parisc/Kconfig |    1 +
 1 file changed, 1 insertion(+)

Index: linux-next/arch/parisc/Kconfig
===================================================================
--- linux-next.orig/arch/parisc/Kconfig
+++ linux-next/arch/parisc/Kconfig
@@ -15,6 +15,7 @@ config PARISC
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_PROBE
 	select IRQ_PER_CPU
+	select GENERIC_HARDIRQS_NO_DEPRECATED
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used


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From - Thu Nov 08 21:06:49 2018
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From: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Newsgroups: gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.virtualization,gmane.comp.emulators.xen.devel,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] sched: provide scheduler_ipi()
 callback in response to smp_send_reschedule()
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On Mon, 2011-01-17 at 12:07 +0100, Peter Zijlstra wrote:
> diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
> index 68034bb..7ee0fc3 100644
> --- a/arch/powerpc/kernel/smp.c
> +++ b/arch/powerpc/kernel/smp.c
> @@ -128,6 +128,7 @@ static irqreturn_t call_function_action(int irq, void *data)
>  static irqreturn_t reschedule_action(int irq, void *data)
>  {
>         /* we just need the return path side effect of checking need_resched */
> +       scheduler_ipi();
>         return IRQ_HANDLED;
>  }
>   

You missed:

diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 9813605..467d122 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -98,6 +98,7 @@ void smp_message_recv(int msg)
                break;
        case PPC_MSG_RESCHEDULE:
                /* we notice need_resched on exit */
+               scheduler_ipi();
                break;
        case PPC_MSG_CALL_FUNC_SINGLE:
                generic_smp_call_function_single_interrupt();

Fold that in and add:

Acked-by: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>

(We have two variants of the IPIs)

Cheers,
Ben.

From - Thu Nov 08 21:06:49 2018
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From: Peter Zijlstra <peterz@infradead.org>
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Subject: Re: [PATCH] sched: provide scheduler_ipi() callback in response to
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To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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On Mon, 2011-02-07 at 10:26 +1100, Benjamin Herrenschmidt wrote:
> You missed:
> 
> diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
> index 9813605..467d122 100644
> --- a/arch/powerpc/kernel/smp.c
> +++ b/arch/powerpc/kernel/smp.c
> @@ -98,6 +98,7 @@ void smp_message_recv(int msg)
>                 break;
>         case PPC_MSG_RESCHEDULE:
>                 /* we notice need_resched on exit */
> +               scheduler_ipi();
>                 break;
>         case PPC_MSG_CALL_FUNC_SINGLE:
>                 generic_smp_call_function_single_interrupt();
> 
> Fold that in and add:
> 
> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

Thanks Ben!




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Subject: Re: [patch 0/8] parisc: Convert to new irq_chip functions
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On Sun, 2011-02-06 at 20:45 +0000, Thomas Gleixner wrote:
> The following series converts parisc to the new irq_chip functions and
> sets GENERIC_HARDIRQS_NO_DEPRECATED. Compile tested only.

You don't really need one patch per file in the irq function changes do
you? ... unless you're being rechristened Joe Perches ...

I can't get the last patch to apply ... it looks like there are lots of
other Kconfig changes besides the one liner it does; what's missing?

Thanks,

James


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From - Thu Nov 08 21:06:49 2018
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Subject: Re: [patch 0/8] parisc: Convert to new irq_chip functions
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On Mon, 7 Feb 2011, James Bottomley wrote:

> On Sun, 2011-02-06 at 20:45 +0000, Thomas Gleixner wrote:
> > The following series converts parisc to the new irq_chip functions and
> > sets GENERIC_HARDIRQS_NO_DEPRECATED. Compile tested only.
> 
> You don't really need one patch per file in the irq function changes do
> you? ... unless you're being rechristened Joe Perches ...

WTF ? It's damn easier to review and make sure that you did not miss
anything that way. That's not a 100 patches series doing spelling
fixes or other trivial shite.

Feel free to bulk apply them, I don't care. Next time I'm going to
ignore parisc and just mark it broken, then you can fix it up yourself
as you like.

> I can't get the last patch to apply ... it looks like there are lots of
> other Kconfig changes besides the one liner it does; what's missing?

Tested it against -next as well, had to fix up crap there and sent out
that queue instead the one against linus.

Yours grumpy,

	tglx
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [patch 0/8] parisc: Convert to new irq_chip functions
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On Mon, 2011-02-07 at 17:53 +0100, Thomas Gleixner wrote:
> On Mon, 7 Feb 2011, James Bottomley wrote:
> 
> > On Sun, 2011-02-06 at 20:45 +0000, Thomas Gleixner wrote:
> > > The following series converts parisc to the new irq_chip functions and
> > > sets GENERIC_HARDIRQS_NO_DEPRECATED. Compile tested only.
> > 
> > You don't really need one patch per file in the irq function changes do
> > you? ... unless you're being rechristened Joe Perches ...
> 
> WTF ? It's damn easier to review and make sure that you did not miss
> anything that way. That's not a 100 patches series doing spelling
> fixes or other trivial shite.
> 
> Feel free to bulk apply them, I don't care. Next time I'm going to
> ignore parisc and just mark it broken, then you can fix it up yourself
> as you like.

sorry, outgoing humour filter stopped picking up .de addresses for some
reason ... I've fixed it ...

> > I can't get the last patch to apply ... it looks like there are lots of
> > other Kconfig changes besides the one liner it does; what's missing?
> 
> Tested it against -next as well, had to fix up crap there and sent out
> that queue instead the one against linus.

Actually, you'll be pleased to hear this was entirely my fault:  The irq
branch of the parisc tree wasn't where I thought it was (it was about a
month behind.

There's some problem in arch/parisc/kernel.c it's giving me undefined
references to irq (oh and some easily fixed compile issues).  I'll see
if I can sort it out and get back to you.

> Yours grumpy,

Well, I'd like to be happy ... but I guess after the git cockup I'll
have to settle for dopey.

James


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From: Thomas Gleixner <tglx@linutronix.de>
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Subject: Re: [patch 0/8] parisc: Convert to new irq_chip functions
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On Mon, 7 Feb 2011, James Bottomley wrote:
> On Mon, 2011-02-07 at 17:53 +0100, Thomas Gleixner wrote:
> > On Mon, 7 Feb 2011, James Bottomley wrote:
> > > I can't get the last patch to apply ... it looks like there are lots of
> > > other Kconfig changes besides the one liner it does; what's missing?
> > 
> > Tested it against -next as well, had to fix up crap there and sent out
> > that queue instead the one against linus.
> 
> Actually, you'll be pleased to hear this was entirely my fault:  The irq
> branch of the parisc tree wasn't where I thought it was (it was about a
> month behind.

:)
 
> There's some problem in arch/parisc/kernel.c it's giving me undefined
> references to irq (oh and some easily fixed compile issues).  I'll see
> if I can sort it out and get back to you.

That's a bug which is already in the current tree:

--- linux-next.orig/arch/parisc/kernel/irq.c
+++ linux-next/arch/parisc/kernel/irq.c
@@ -108,7 +108,7 @@ int cpu_check_affinity(unsigned int irq,
 	int cpu_dest;
 
 	/* timer and ipi have to always be received on all CPUs */
-	if (CHECK_IRQ_PER_CPU(irq)) {
+	if (CHECK_IRQ_PER_CPU(irq_to_desc(irq)->status)) {
 		/* Bad linux design decision.  The mask has already
 		 * been set; we must reset it */
 		cpumask_setall(irq_desc[irq].affinity);

That's looking at the wrong thing.

So after the irq_chip conversion you need:

 -- linux-next.orig/arch/parisc/kernel/irq.c
+++ linux-next/arch/parisc/kernel/irq.c
@@ -113,7 +113,7 @@ int cpu_check_affinity(struct irq_data *
 	int cpu_dest;
 
 	/* timer and ipi have to always be received on all CPUs */
-	if (CHECK_IRQ_PER_CPU(irq_to_desc(irq))) {
+	if (CHECK_IRQ_PER_CPU(irq_to_desc(d->irq)->status)) {
 		/* Bad linux design decision.  The mask has already
 		 * been set; we must reset it. Will fix - tglx
 		 */

> Well, I'd like to be happy ... but I guess after the git cockup I'll
> have to settle for dopey.

:)

Thanks,

	tglx
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On Mon, 2011-02-07 at 19:28 +0100, Thomas Gleixner wrote:
> On Mon, 7 Feb 2011, James Bottomley wrote:
>  
> > There's some problem in arch/parisc/kernel.c it's giving me undefined
> > references to irq (oh and some easily fixed compile issues).  I'll see
> > if I can sort it out and get back to you.
> 
> That's a bug which is already in the current tree:

[...]

Actually, it's more than this.  Just to get it to compile, I needed the
patch below (I folded in your fix for our longstanding affinity bug).

Unfortunately, it's panicing on boot in txn_alloc (that's a CPU
interrupt allocation in the iosapic), so I'm going to debug further.

James

---

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 9eea164..f2e7154 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -113,7 +113,7 @@ int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest)
 	int cpu_dest;
 
 	/* timer and ipi have to always be received on all CPUs */
-	if (CHECK_IRQ_PER_CPU(irq)) {
+	if (CHECK_IRQ_PER_CPU(irq_to_desc(d->irq)->status)) {
 		/* Bad linux design decision.  The mask has already
 		 * been set; we must reset it. Will fix - tglx
 		 */
@@ -128,11 +128,11 @@ int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest)
 }
 
 static int cpu_set_affinity_irq(struct irq_data *d, const struct cpumask *dest,
-				bool force))
+				bool force)
 {
 	int cpu_dest;
 
-	cpu_dest = cpu_check_affinity(d->irq, dest);
+	cpu_dest = cpu_check_affinity(d, dest);
 	if (cpu_dest < 0)
 		return -1;
 
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index a015c12..95930d0 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -693,7 +693,7 @@ static int iosapic_set_affinity_irq(struct irq_data *d,
 		return -1;
 
 	cpumask_copy(d->affinity, cpumask_of(dest_cpu));
-	vi->txn_addr = txn_affinity_addr(irq, dest_cpu);
+	vi->txn_addr = txn_affinity_addr(d->irq, dest_cpu);
 
 	spin_lock_irqsave(&iosapic_lock, flags);
 	/* d1 contains the destination CPU, so only want to set that


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On Mon, 2011-02-07 at 15:26 -0600, James Bottomley wrote:
> Unfortunately, it's panicing on boot in txn_alloc (that's a CPU
> interrupt allocation in the iosapic), so I'm going to debug further.

Following up with Thomas over IRC, the attached is the finally final
patch he came up with to fix the panic and sort out the compile issues.
I've verified this on an iosapic system (pa8800) and on dino/gsc (C360)
could someone try it on an astro system?

Thanks,

James

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 9eea164..cb450e1 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -113,7 +113,7 @@ int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest)
 	int cpu_dest;
 
 	/* timer and ipi have to always be received on all CPUs */
-	if (CHECK_IRQ_PER_CPU(irq)) {
+	if (CHECK_IRQ_PER_CPU(irq_to_desc(d->irq)->status)) {
 		/* Bad linux design decision.  The mask has already
 		 * been set; we must reset it. Will fix - tglx
 		 */
@@ -128,11 +128,11 @@ int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest)
 }
 
 static int cpu_set_affinity_irq(struct irq_data *d, const struct cpumask *dest,
-				bool force))
+				bool force)
 {
 	int cpu_dest;
 
-	cpu_dest = cpu_check_affinity(d->irq, dest);
+	cpu_dest = cpu_check_affinity(d, dest);
 	if (cpu_dest < 0)
 		return -1;
 
@@ -296,7 +296,7 @@ int txn_alloc_irq(unsigned int bits_wide)
 unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 {
 #ifdef CONFIG_SMP
-	struct irq_data *d = get_irq_data(irq);
+	struct irq_data *d = irq_get_irq_data(irq);
 	cpumask_copy(d->affinity, cpumask_of(cpu));
 #endif
 
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index a015c12..95930d0 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -693,7 +693,7 @@ static int iosapic_set_affinity_irq(struct irq_data *d,
 		return -1;
 
 	cpumask_copy(d->affinity, cpumask_of(dest_cpu));
-	vi->txn_addr = txn_affinity_addr(irq, dest_cpu);
+	vi->txn_addr = txn_affinity_addr(d->irq, dest_cpu);
 
 	spin_lock_irqsave(&iosapic_lock, flags);
 	/* d1 contains the destination CPU, so only want to set that


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From: Thomas Gleixner <tglx@linutronix.de>
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Subject: Re: [patch 0/8] parisc: Convert to new irq_chip functions
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On Mon, 7 Feb 2011, James Bottomley wrote:

> On Mon, 2011-02-07 at 15:26 -0600, James Bottomley wrote:
> > Unfortunately, it's panicing on boot in txn_alloc (that's a CPU
> > interrupt allocation in the iosapic), so I'm going to debug further.
> 
> Following up with Thomas over IRC, the attached is the finally final
> patch he came up with to fix the panic and sort out the compile issues.
> I've verified this on an iosapic system (pa8800) and on dino/gsc (C360)
> could someone try it on an astro system?
> 
> Thanks,
> 
> James
> 
> diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
> index 9eea164..cb450e1 100644
> --- a/arch/parisc/kernel/irq.c
> +++ b/arch/parisc/kernel/irq.c
> @@ -113,7 +113,7 @@ int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest)
>  	int cpu_dest;
>  
>  	/* timer and ipi have to always be received on all CPUs */
> -	if (CHECK_IRQ_PER_CPU(irq)) {
> +	if (CHECK_IRQ_PER_CPU(irq_to_desc(d->irq)->status)) {

For extended fun I just noticed, that nothing ever sets IRQ_PER_CPU in
desc->status for all of parisc.

This check (using irq) never evaluated to true due to:

   #define IRQ_PER_CPU         0x00010000      /* IRQ is per CPU */

I doubt that irq can be that large on parisc :)

The other place evaluates to false as well, because nothing ever sets
the damn flag.

If you want to set it please use: set_irq_status_flags(irq, IRQ_PER_CPU);
otherwise just kill that PER_CPU thingy :)

Thanks,

	tglx
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From: Thomas Gleixner <tglx@linutronix.de>
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Subject: Re: [patch 0/8] parisc: Convert to new irq_chip functions
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On Tue, 8 Feb 2011, Thomas Gleixner wrote:

> On Mon, 7 Feb 2011, James Bottomley wrote:
> 
> > On Mon, 2011-02-07 at 15:26 -0600, James Bottomley wrote:
> > > Unfortunately, it's panicing on boot in txn_alloc (that's a CPU
> > > interrupt allocation in the iosapic), so I'm going to debug further.
> > 
> > Following up with Thomas over IRC, the attached is the finally final
> > patch he came up with to fix the panic and sort out the compile issues.
> > I've verified this on an iosapic system (pa8800) and on dino/gsc (C360)
> > could someone try it on an astro system?
> > 
> > Thanks,
> > 
> > James
> > 
> > diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
> > index 9eea164..cb450e1 100644
> > --- a/arch/parisc/kernel/irq.c
> > +++ b/arch/parisc/kernel/irq.c
> > @@ -113,7 +113,7 @@ int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest)
> >  	int cpu_dest;
> >  
> >  	/* timer and ipi have to always be received on all CPUs */
> > -	if (CHECK_IRQ_PER_CPU(irq)) {
> > +	if (CHECK_IRQ_PER_CPU(irq_to_desc(d->irq)->status)) {
> 
> For extended fun I just noticed, that nothing ever sets IRQ_PER_CPU in
> desc->status for all of parisc.
> 
> This check (using irq) never evaluated to true due to:
> 
>    #define IRQ_PER_CPU         0x00010000      /* IRQ is per CPU */
> 
> I doubt that irq can be that large on parisc :)
> 
> The other place evaluates to false as well, because nothing ever sets
> the damn flag.
> 
> If you want to set it please use: set_irq_status_flags(irq, IRQ_PER_CPU);
> otherwise just kill that PER_CPU thingy :)

Gah. You set it indirect via IRQF_PERCPU with setup/request_irq.

Staring too long into that code makes my brain fuzzy.

Thanks,

	tglx
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On Tue, 2011-02-08 at 15:37 +0100, Thomas Gleixner wrote:
> On Tue, 8 Feb 2011, Thomas Gleixner wrote:
> 
> > On Mon, 7 Feb 2011, James Bottomley wrote:
> > 
> > > On Mon, 2011-02-07 at 15:26 -0600, James Bottomley wrote:
> > > > Unfortunately, it's panicing on boot in txn_alloc (that's a CPU
> > > > interrupt allocation in the iosapic), so I'm going to debug further.
> > > 
> > > Following up with Thomas over IRC, the attached is the finally final
> > > patch he came up with to fix the panic and sort out the compile issues.
> > > I've verified this on an iosapic system (pa8800) and on dino/gsc (C360)
> > > could someone try it on an astro system?
> > > 
> > > Thanks,
> > > 
> > > James
> > > 
> > > diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
> > > index 9eea164..cb450e1 100644
> > > --- a/arch/parisc/kernel/irq.c
> > > +++ b/arch/parisc/kernel/irq.c
> > > @@ -113,7 +113,7 @@ int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest)
> > >  	int cpu_dest;
> > >  
> > >  	/* timer and ipi have to always be received on all CPUs */
> > > -	if (CHECK_IRQ_PER_CPU(irq)) {
> > > +	if (CHECK_IRQ_PER_CPU(irq_to_desc(d->irq)->status)) {
> > 
> > For extended fun I just noticed, that nothing ever sets IRQ_PER_CPU in
> > desc->status for all of parisc.
> > 
> > This check (using irq) never evaluated to true due to:
> > 
> >    #define IRQ_PER_CPU         0x00010000      /* IRQ is per CPU */
> > 
> > I doubt that irq can be that large on parisc :)
> > 
> > The other place evaluates to false as well, because nothing ever sets
> > the damn flag.
> > 
> > If you want to set it please use: set_irq_status_flags(irq, IRQ_PER_CPU);
> > otherwise just kill that PER_CPU thingy :)
> 
> Gah. You set it indirect via IRQF_PERCPU with setup/request_irq.
> 
> Staring too long into that code makes my brain fuzzy.

Yes ... know the feeling over the years trying to keep up with the
various irq schemes.  Got to say, it's a lot easier now: The way parisc
chips accept interrupts is essentially MSI.  Trying to live in the old
world modelled on the x86 PIC wasn't fun.

So did you want me to roll all the fixes together and apply them, or is
there something else that needs to happen?

James




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On Thu, 20 Jan 2011, James Bottomley wrote:

> On parisc, we never implemented invalidate_kernel_vmap_range() because
> it was unnecessary for the xfs use case.  However, we do need to
> implement an invalidate for the opposite use case (which occurred in a
> recent NFS change) where the user wants to read through the vmap range
> and write via the kernel address.  There's an additional complexity to
> this in that if the page has no userspace mappings, it might have dirty
> cache lines in the kernel (indicated by the PG_dcache_dirty bit).  In
> order to get full coherency, we need to flush these pages through the
> kernel mapping before invalidating the vmap range.

The attached patch greatly improves SMP stability on my rp3440.  I
have now done several full GCC builds with make -j4 without any random
segmentation faults.  This is with the parisc next-for branch, built
with gcc version 4.5.3 20110101 (prerelease) and binutils 2.21.51.20110108.

The change includes James' invalidate_kernel_vmap_range patch which
as of last night, doesn't seem to be in linux-next..

Notes:

1) Changed spin_lock_irq to spin_lock in flush_dcache_mmap_lock because
   the former causes a problem with timer interrupts.
2) Changed update_mmu_cache to return immediately if the PFN is not valid.
   In testing, I found there was always a mapping, so this test was
   eliminated.  I also changed to using test_and_clear_bit as on arm.
3) Added a higher level lock to flush_dcache_page as I found in testing
   that the user mappings appeared to change while the code iterated
   over the user mappings.  Updated comment to better reflect the
   current status WRT inequivalent aliases.  Only updated old_addr
   for shared mappings.  This was simply to suppress the number of
   "INEQUIVALENT" messages.  As noted previously, too many causes the
   console getty process to stop working.  I think it may be possible
   to further optimize this loop.
4) Changed arch_get_unmapped_area to enforce alignment of shared
   MAP_FIXED regions as on arm.

Signed-off-by: John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index dc9286a..d5f1631 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -35,6 +35,13 @@ void flush_cache_all_local(void);
 void flush_cache_all(void);
 void flush_cache_mm(struct mm_struct *mm);
 
+#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
+void flush_kernel_dcache_page_addr(void *addr);
+static inline void flush_kernel_dcache_page(struct page *page)
+{
+	flush_kernel_dcache_page_addr(page_address(page));
+}
+
 #define flush_kernel_dcache_range(start,size) \
 	flush_kernel_dcache_range_asm((start), (start)+(size));
 /* vmap range flushes and invalidates.  Architecturally, we don't need
@@ -48,6 +55,16 @@ static inline void flush_kernel_vmap_range(void *vaddr, int size)
 }
 static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
 {
+	unsigned long start = (unsigned long)vaddr;
+	void *cursor = vaddr;
+
+	for ( ; cursor < vaddr + size; cursor += PAGE_SIZE) {
+		struct page *page = vmalloc_to_page(cursor);
+
+		if (test_and_clear_bit(PG_dcache_dirty, &page->flags))
+			flush_kernel_dcache_page(page);
+	}
+	flush_kernel_dcache_range_asm(start, start + size);
 }
 
 #define flush_cache_vmap(start, end)		flush_cache_all()
@@ -57,9 +74,9 @@ static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
 extern void flush_dcache_page(struct page *page);
 
 #define flush_dcache_mmap_lock(mapping) \
-	spin_lock_irq(&(mapping)->tree_lock)
+	spin_lock(&(mapping)->tree_lock)
 #define flush_dcache_mmap_unlock(mapping) \
-	spin_unlock_irq(&(mapping)->tree_lock)
+	spin_unlock(&(mapping)->tree_lock)
 
 #define flush_icache_page(vma,page)	do { 		\
 	flush_kernel_dcache_page(page);			\
@@ -99,13 +116,6 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
 }
 
-#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
-void flush_kernel_dcache_page_addr(void *addr);
-static inline void flush_kernel_dcache_page(struct page *page)
-{
-	flush_kernel_dcache_page_addr(page_address(page));
-}
-
 #ifdef CONFIG_DEBUG_RODATA
 void mark_rodata_ro(void);
 #endif
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 3f11331..fa92dcb 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -75,14 +75,16 @@ EXPORT_SYMBOL(flush_cache_all_local);
 void
 update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
 {
-	struct page *page = pte_page(*ptep);
+        unsigned long pfn = pte_pfn(*ptep);
+        struct page *page;
 
-	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
-	    test_bit(PG_dcache_dirty, &page->flags)) {
+        if (!pfn_valid(pfn))
+                return;
 
-		flush_kernel_dcache_page(page);
-		clear_bit(PG_dcache_dirty, &page->flags);
-	} else if (parisc_requires_coherency())
+        page = pfn_to_page(pfn);
+
+        if (test_and_clear_bit(PG_dcache_dirty, &page->flags)
+	    || parisc_requires_coherency())
 		flush_kernel_dcache_page(page);
 }
 
@@ -295,10 +297,17 @@ void flush_dcache_page(struct page *page)
 	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 
 	/* We have carefully arranged in arch_get_unmapped_area() that
-	 * *any* mappings of a file are always congruently mapped (whether
-	 * declared as MAP_PRIVATE or MAP_SHARED), so we only need
-	 * to flush one address here for them all to become coherent */
-
+	 * all shared mappings of a file are congruently mapped, so we
+	 * only need to flush one address here for them all to become
+	 * coherent.  However, non shared fixed mappings of executables
+	 * are not congruently mapped on the boundary page between text
+	 * and data.  Further, the data segment sometimes occurs before
+	 * the text segment.  While it is unlikely that a dirty cache
+	 * line would result from accesses through the text mapping,
+	 * it is possible that this could occur since binutils doesn't
+	 * ensure that the data segment starts on a page boundary.  */
+
+	spin_lock(&mapping->i_mmap_lock);
 	flush_dcache_mmap_lock(mapping);
 	vma_prio_tree_foreach(mpnt, &iter, &mapping->i_mmap, pgoff, pgoff) {
 		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
@@ -307,11 +316,13 @@ void flush_dcache_page(struct page *page)
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
 			if (old_addr)
-				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
-			old_addr = addr;
+				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *) mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
+			if (mpnt->vm_flags & VM_SHARED)
+				old_addr = addr;
 		}
 	}
 	flush_dcache_mmap_unlock(mapping);
+	spin_unlock(&mapping->i_mmap_lock);
 }
 EXPORT_SYMBOL(flush_dcache_page);
 
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..f0cb56e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
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On Tue, 2011-02-08 at 12:15 -0500, John David Anglin wrote:
> On Thu, 20 Jan 2011, James Bottomley wrote:
> 
> > On parisc, we never implemented invalidate_kernel_vmap_range() because
> > it was unnecessary for the xfs use case.  However, we do need to
> > implement an invalidate for the opposite use case (which occurred in a
> > recent NFS change) where the user wants to read through the vmap range
> > and write via the kernel address.  There's an additional complexity to
> > this in that if the page has no userspace mappings, it might have dirty
> > cache lines in the kernel (indicated by the PG_dcache_dirty bit).  In
> > order to get full coherency, we need to flush these pages through the
> > kernel mapping before invalidating the vmap range.
> 
> The attached patch greatly improves SMP stability on my rp3440.  I
> have now done several full GCC builds with make -j4 without any random
> segmentation faults.  This is with the parisc next-for branch, built
> with gcc version 4.5.3 20110101 (prerelease) and binutils 2.21.51.20110108.
> 
> The change includes James' invalidate_kernel_vmap_range patch which
> as of last night, doesn't seem to be in linux-next..

doing this makes it a bit harder to see what you're changing.  It also
can't possibly affect your testing, because it's an edge case for xfs
journals currently.

> Notes:
> 
> 1) Changed spin_lock_irq to spin_lock in flush_dcache_mmap_lock because
>    the former causes a problem with timer interrupts.

This looks reasonable ... architectures which don't use the lock do
this.  Unfortunately, flush_dcache_page can be called from interrupt
context, so our only choices are to eliminate the lock or to use it in
an interrupt safe manner.  If we use a non interrupt safe lock, it will
cause a deadlock eventually.

> 2) Changed update_mmu_cache to return immediately if the PFN is not valid.
>    In testing, I found there was always a mapping, so this test was
>    eliminated.  I also changed to using test_and_clear_bit as on arm.

This is just an optimisation, so I'm fine with it.

> 3) Added a higher level lock to flush_dcache_page as I found in testing
>    that the user mappings appeared to change while the code iterated
>    over the user mappings.  Updated comment to better reflect the
>    current status WRT inequivalent aliases.  Only updated old_addr
>    for shared mappings.  This was simply to suppress the number of
>    "INEQUIVALENT" messages.  As noted previously, too many causes the
>    console getty process to stop working.  I think it may be possible
>    to further optimize this loop.

So this is a big problem.  The flush_dcache_mmap_lock/unlock is supposed
to be our protection against this.  If that's not working the generic
code is broken.  But I'm not clear what you think is changing.  The lock
protects the mapping prio tree ... that can't change as we iterate
otherwise we'll walk off a stale entry and go boom.  The actual status
of the mappings is allowed to change.

> 4) Changed arch_get_unmapped_area to enforce alignment of shared
>    MAP_FIXED regions as on arm.

This one looks good.

James


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On Tue, 8 Feb 2011, James Bottomley wrote:
> On Tue, 2011-02-08 at 15:37 +0100, Thomas Gleixner wrote:
> > Gah. You set it indirect via IRQF_PERCPU with setup/request_irq.
> > 
> > Staring too long into that code makes my brain fuzzy.
> 
> Yes ... know the feeling over the years trying to keep up with the
> various irq schemes.  Got to say, it's a lot easier now: The way parisc
> chips accept interrupts is essentially MSI.  Trying to live in the old
> world modelled on the x86 PIC wasn't fun.
> 
> So did you want me to roll all the fixes together and apply them, or is
> there something else that needs to happen?

All yours. You might want to split out the CHECK... bugfix first.

There will be some minor follow up changes, but they depend on code
which I'm going to push soon.

Thanks,

	tglx
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On Tue, 2011-02-08 at 18:42 +0100, Thomas Gleixner wrote:
> On Tue, 8 Feb 2011, James Bottomley wrote:
> > On Tue, 2011-02-08 at 15:37 +0100, Thomas Gleixner wrote:
> > > Gah. You set it indirect via IRQF_PERCPU with setup/request_irq.
> > > 
> > > Staring too long into that code makes my brain fuzzy.
> > 
> > Yes ... know the feeling over the years trying to keep up with the
> > various irq schemes.  Got to say, it's a lot easier now: The way parisc
> > chips accept interrupts is essentially MSI.  Trying to live in the old
> > world modelled on the x86 PIC wasn't fun.
> > 
> > So did you want me to roll all the fixes together and apply them, or is
> > there something else that needs to happen?
> 
> All yours. You might want to split out the CHECK... bugfix first.

Good idea ... you authorise me to do the split and add your
signed-off-by?

> There will be some minor follow up changes, but they depend on code
> which I'm going to push soon.

OK ... we'll wait for those.  I'll plan this for the next merge window.

James


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Improve dcache flush on PA8800/PA8900
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To: James.Bottomley@HansenPartnership.com (James Bottomley)
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> > The change includes James' invalidate_kernel_vmap_range patch which
> > as of last night, doesn't seem to be in linux-next..
> 
> doing this makes it a bit harder to see what you're changing.  It also
> can't possibly affect your testing, because it's an edge case for xfs
> journals currently.

I'll pull that part out and retest.

> > 1) Changed spin_lock_irq to spin_lock in flush_dcache_mmap_lock because
> >    the former causes a problem with timer interrupts.
> 
> This looks reasonable ... architectures which don't use the lock do
> this.  Unfortunately, flush_dcache_page can be called from interrupt
> context, so our only choices are to eliminate the lock or to use it in
> an interrupt safe manner.  If we use a non interrupt safe lock, it will
> cause a deadlock eventually.

I see occassional slow timer interrupt messages and I suspect the expect
timeouts that I see during the GCC testsuite are also caused by disabling
interrupts for too long.  I also encountered situations in the GCC
build where certain applications (gnat1) would run much longer than
normal (seemed like scheduling was broken).  At the smae time, xntpd
seemed to be consuming more cycles than normal.

Arm has some checks in __flush_dcache_aliase that may eliminate some
flushes and reduce the time interrupts are disabled in flush_dcache_page,
but I don't trust the VM_MAYSHARE one.

> > 3) Added a higher level lock to flush_dcache_page as I found in testing
> >    that the user mappings appeared to change while the code iterated
> >    over the user mappings.  Updated comment to better reflect the
> >    current status WRT inequivalent aliases.  Only updated old_addr
> >    for shared mappings.  This was simply to suppress the number of
> >    "INEQUIVALENT" messages.  As noted previously, too many causes the
> >    console getty process to stop working.  I think it may be possible
> >    to further optimize this loop.
> 
> So this is a big problem.  The flush_dcache_mmap_lock/unlock is supposed
> to be our protection against this.  If that's not working the generic
> code is broken.  But I'm not clear what you think is changing.  The lock
> protects the mapping prio tree ... that can't change as we iterate
> otherwise we'll walk off a stale entry and go boom.  The actual status
> of the mappings is allowed to change.

Specifically, what led me to assume that there was an issue with the
code as is was various "INEQUIVALENT" messages with a difference between
old_addr and addr of 0x150000.  This is the only difference other
than +/- 0x1000 that I have seen.  The GCC libmudflap testsuite triggers
a number of these odd messages.  Here's some samples.

Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x4014b000 and 0x4014a000 in file ld-2.11.2.so
Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406b8000 and 0x40568000 in file libc-2.11.2.so
Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406b9000 and 0x40569000 in file libc-2.11.2.so
Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406ba000 and 0x4056a000 in file libc-2.11.2.so
Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406bb000 and 0x4056b000 in file libc-2.11.2.so
Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406bc000 and 0x4056c000 in file libc-2.11.2.so
Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406bd000 and 0x4056d000 in file libc-2.11.2.so
Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406be000 and 0x4056e000 in file libc-2.11.2.so
Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406bf000 and 0x4056f000 in file libc-2.11.2.so
Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406c1000 and 0x406c0000 in file libc-2.11.2.so

The messages occur because there is a core dump when the test is run is
run by the expect/dejagnu framework.  I think all the messages above
were generated by a single core dump.  The test doesn't fail when I compile
and run manually.  From the above, I had the sense that the addresses
were changing while the loop while it was being iterated.  With the extra
lock, I haven't seen this. 

Possibly, the answer is to disable interrupts at the &mapping->i_mmap_lock
lock, and skip VMAs if they are not in current mm.  What do you think?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, 8 Feb 2011, James Bottomley wrote:

> On Tue, 2011-02-08 at 18:42 +0100, Thomas Gleixner wrote:
> > On Tue, 8 Feb 2011, James Bottomley wrote:
> > > On Tue, 2011-02-08 at 15:37 +0100, Thomas Gleixner wrote:
> > > > Gah. You set it indirect via IRQF_PERCPU with setup/request_irq.
> > > > 
> > > > Staring too long into that code makes my brain fuzzy.
> > > 
> > > Yes ... know the feeling over the years trying to keep up with the
> > > various irq schemes.  Got to say, it's a lot easier now: The way parisc
> > > chips accept interrupts is essentially MSI.  Trying to live in the old
> > > world modelled on the x86 PIC wasn't fun.
> > > 
> > > So did you want me to roll all the fixes together and apply them, or is
> > > there something else that needs to happen?
> > 
> > All yours. You might want to split out the CHECK... bugfix first.
> 
> Good idea ... you authorise me to do the split and add your
> signed-off-by?

Yup.
 
> > There will be some minor follow up changes, but they depend on code
> > which I'm going to push soon.
> 
> OK ... we'll wait for those.  I'll plan this for the next merge window.

Push the current lot out. The minor changes will probably come after
all the stuff hit linus tree in the 39 merge window.

Thanks,

	tglx
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On Mon, 2011-02-07 at 14:54 +0100, Peter Zijlstra wrote:
> On Mon, 2011-02-07 at 10:26 +1100, Benjamin Herrenschmidt wrote:
> > You missed:
> > 
> > diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
> > index 9813605..467d122 100644
> > --- a/arch/powerpc/kernel/smp.c
> > +++ b/arch/powerpc/kernel/smp.c
> > @@ -98,6 +98,7 @@ void smp_message_recv(int msg)
> >                 break;
> >         case PPC_MSG_RESCHEDULE:
> >                 /* we notice need_resched on exit */
> > +               scheduler_ipi();
> >                 break;
> >         case PPC_MSG_CALL_FUNC_SINGLE:
> >                 generic_smp_call_function_single_interrupt();
> > 
> > Fold that in and add:
> > 
> > Acked-by: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
> 
> Thanks Ben!

BTW. I we lurking at some of our CPU hotplug code and I think I cannot
totally guarantee that this won't be called on an offline CPU. If that's
a problem, you may want to add a test for that.

IE. The call function IPIs are normally not going to be sent to an
offlined CPU, and stop_machine should be a good enough fence here, but
we do abuse reschedule for a number of things (including in some case
to wake up a sleeping CPU that was pseudo-offlined :-)

Cheers,
Ben.

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From: Peter Zijlstra <peterz@infradead.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.comp.emulators.xen.devel,gmane.linux.kernel.virtualization,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH] sched: provide scheduler_ipi() callback in response to
 smp_send_reschedule()
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Cc: Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Russell King <linux@arm.linux.org.uk>,
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To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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On Wed, 2011-02-09 at 17:14 +1100, Benjamin Herrenschmidt wrote:
> On Mon, 2011-02-07 at 14:54 +0100, Peter Zijlstra wrote:
> > On Mon, 2011-02-07 at 10:26 +1100, Benjamin Herrenschmidt wrote:
> > > You missed:
> > > 
> > > diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
> > > index 9813605..467d122 100644
> > > --- a/arch/powerpc/kernel/smp.c
> > > +++ b/arch/powerpc/kernel/smp.c
> > > @@ -98,6 +98,7 @@ void smp_message_recv(int msg)
> > >                 break;
> > >         case PPC_MSG_RESCHEDULE:
> > >                 /* we notice need_resched on exit */
> > > +               scheduler_ipi();
> > >                 break;
> > >         case PPC_MSG_CALL_FUNC_SINGLE:
> > >                 generic_smp_call_function_single_interrupt();
> > > 
> > > Fold that in and add:
> > > 
> > > Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> > 
> > Thanks Ben!
> 
> BTW. I we lurking at some of our CPU hotplug code and I think I cannot
> totally guarantee that this won't be called on an offline CPU. If that's
> a problem, you may want to add a test for that.
> 
> IE. The call function IPIs are normally not going to be sent to an
> offlined CPU, and stop_machine should be a good enough fence here, but
> we do abuse reschedule for a number of things (including in some case
> to wake up a sleeping CPU that was pseudo-offlined :-)

Hmm, I _think_ that should all work out nicely, but we'll see, if when
this stuff hits the tree powerpc machines start falling over we'd better
put that check in ;-)

Meanwhile I'm going to preserve this comment in the changelog of this
patch so we don't forget.




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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Improve dcache flush on PA8800/PA8900
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Tue, 2011-02-08 at 13:45 -0500, John David Anglin wrote:
> > > The change includes James' invalidate_kernel_vmap_range patch which
> > > as of last night, doesn't seem to be in linux-next..
> > 
> > doing this makes it a bit harder to see what you're changing.  It also
> > can't possibly affect your testing, because it's an edge case for xfs
> > journals currently.
> 
> I'll pull that part out and retest.
> 
> > > 1) Changed spin_lock_irq to spin_lock in flush_dcache_mmap_lock because
> > >    the former causes a problem with timer interrupts.
> > 
> > This looks reasonable ... architectures which don't use the lock do
> > this.  Unfortunately, flush_dcache_page can be called from interrupt
> > context, so our only choices are to eliminate the lock or to use it in
> > an interrupt safe manner.  If we use a non interrupt safe lock, it will
> > cause a deadlock eventually.
> 
> I see occassional slow timer interrupt messages and I suspect the expect
> timeouts that I see during the GCC testsuite are also caused by disabling
> interrupts for too long.  I also encountered situations in the GCC
> build where certain applications (gnat1) would run much longer than
> normal (seemed like scheduling was broken).  At the smae time, xntpd
> seemed to be consuming more cycles than normal.

Right, the problem here is the inequivalent aliases I picked up in
testing.  To flush them I loop over all the vma's prio tree.  For a vma
shared by a lot of processes (like the ones in glibc) that's a pretty
large tree traversal.  Once we're sure we don't get inequivalent
aliases, I can apply the patch below and the lock will be held for a
minute fraction of what it was previously.


> Arm has some checks in __flush_dcache_aliase that may eliminate some
> flushes and reduce the time interrupts are disabled in flush_dcache_page,
> but I don't trust the VM_MAYSHARE one.
> 
> > > 3) Added a higher level lock to flush_dcache_page as I found in testing
> > >    that the user mappings appeared to change while the code iterated
> > >    over the user mappings.  Updated comment to better reflect the
> > >    current status WRT inequivalent aliases.  Only updated old_addr
> > >    for shared mappings.  This was simply to suppress the number of
> > >    "INEQUIVALENT" messages.  As noted previously, too many causes the
> > >    console getty process to stop working.  I think it may be possible
> > >    to further optimize this loop.
> > 
> > So this is a big problem.  The flush_dcache_mmap_lock/unlock is supposed
> > to be our protection against this.  If that's not working the generic
> > code is broken.  But I'm not clear what you think is changing.  The lock
> > protects the mapping prio tree ... that can't change as we iterate
> > otherwise we'll walk off a stale entry and go boom.  The actual status
> > of the mappings is allowed to change.
> 
> Specifically, what led me to assume that there was an issue with the
> code as is was various "INEQUIVALENT" messages with a difference between
> old_addr and addr of 0x150000.  This is the only difference other
> than +/- 0x1000 that I have seen.  The GCC libmudflap testsuite triggers
> a number of these odd messages.  Here's some samples.
> 
> Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x4014b000 and 0x4014a000 in file ld-2.11.2.so
> Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406b8000 and 0x40568000 in file libc-2.11.2.so
> Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406b9000 and 0x40569000 in file libc-2.11.2.so
> Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406ba000 and 0x4056a000 in file libc-2.11.2.so
> Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406bb000 and 0x4056b000 in file libc-2.11.2.so
> Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406bc000 and 0x4056c000 in file libc-2.11.2.so
> Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406bd000 and 0x4056d000 in file libc-2.11.2.so
> Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406be000 and 0x4056e000 in file libc-2.11.2.so
> Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406bf000 and 0x4056f000 in file libc-2.11.2.so
> Feb  6 04:50:56 mx3210 kernel: INEQUIVALENT ALIASES 0x406c1000 and 0x406c0000 in file libc-2.11.2.so
> 
> The messages occur because there is a core dump when the test is run is
> run by the expect/dejagnu framework.  I think all the messages above
> were generated by a single core dump.  The test doesn't fail when I compile
> and run manually.  From the above, I had the sense that the addresses
> were changing while the loop while it was being iterated.  With the extra
> lock, I haven't seen this. 
> 
> Possibly, the answer is to disable interrupts at the &mapping->i_mmap_lock
> lock, and skip VMAs if they are not in current mm.  What do you think?

They already are distabled by the flush_dcache_mmap_lock

Can we assume these addresses are some type of artifact and just apply
the patch below anyway?  On current parisc, it's what we do (we don't
flush anything beyond the first mapping).

James

---

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 3f11331..c60cc42 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -276,10 +276,13 @@ __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 void flush_dcache_page(struct page *page)
 {
 	struct address_space *mapping = page_mapping(page);
-	struct vm_area_struct *mpnt;
+	struct vm_area_struct *mpnt = NULL;
 	struct prio_tree_iter iter;
 	unsigned long offset;
-	unsigned long addr, old_addr = 0;
+	unsigned long addr = 0;
+#ifdef DEBUG_ALIASES
+	unsigned long old_addr = 0;
+#endif
 	pgoff_t pgoff;
 
 	if (mapping && !mapping_mapped(mapping)) {
@@ -304,14 +307,25 @@ void flush_dcache_page(struct page *page)
 		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
 		addr = mpnt->vm_start + offset;
 
+#ifdef DEBUG_ALIASES
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
 			if (old_addr)
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
 			old_addr = addr;
 		}
+#else
+		break;
+#endif
 	}
 	flush_dcache_mmap_unlock(mapping);
+#ifndef DEBUG_ALIASES
+	/* since we have only one page, flush outside the lock.  If the loop
+	 * didn't happen (no mappings), mpnt will be NULL */
+	if (mpnt)
+		__flush_cache_page(mpnt, addr, page_to_phys(page));
+#endif
+
 }
 EXPORT_SYMBOL(flush_dcache_page);
 


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Subject: Re: [PATCH] parisc: Improve dcache flush on PA8800/PA8900
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To: James.Bottomley@HansenPartnership.com (James Bottomley)
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> Can we assume these addresses are some type of artifact and just apply
> the patch below anyway?  On current parisc, it's what we do (we don't
> flush anything beyond the first mapping).

I like the idea but using the first mapping is not correct.  All pages
get flushed during core dumps and there is almost always inequivalent
aliases for the page containing the boundary between text and data.
The text map usually comes first.

I don't think the addresses are an artifact.  However, I don't know
how they occur.  I saw another bunch in the C testsuite last night.
There are thousands of tests, so it's hard to know which test triggered
the messages.

I'm now thinking that the dynamic loader sometimes does multiple maps
of libc.  It's using MAP_FIXED.  The current code changes old_addr
everytime an inequivalent alias occurs.  This makes it a bit difficult
to see what's happening.

The usual case would be just one address to flush.  Would it be too
much overhead to do a prescan to determine if there are inequivalent
aliases before doing any flushes?  I think I'll try this.

Dave

> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
> index 3f11331..c60cc42 100644
> --- a/arch/parisc/kernel/cache.c
> +++ b/arch/parisc/kernel/cache.c
> @@ -276,10 +276,13 @@ __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
>  void flush_dcache_page(struct page *page)
>  {
>  	struct address_space *mapping = page_mapping(page);
> -	struct vm_area_struct *mpnt;
> +	struct vm_area_struct *mpnt = NULL;
>  	struct prio_tree_iter iter;
>  	unsigned long offset;
> -	unsigned long addr, old_addr = 0;
> +	unsigned long addr = 0;
> +#ifdef DEBUG_ALIASES
> +	unsigned long old_addr = 0;
> +#endif
>  	pgoff_t pgoff;
>  
>  	if (mapping && !mapping_mapped(mapping)) {
> @@ -304,14 +307,25 @@ void flush_dcache_page(struct page *page)
>  		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
>  		addr = mpnt->vm_start + offset;
>  
> +#ifdef DEBUG_ALIASES
>  		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
>  			__flush_cache_page(mpnt, addr, page_to_phys(page));
>  			if (old_addr)
>  				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
>  			old_addr = addr;
>  		}
> +#else
> +		break;
> +#endif
>  	}
>  	flush_dcache_mmap_unlock(mapping);
> +#ifndef DEBUG_ALIASES
> +	/* since we have only one page, flush outside the lock.  If the loop
> +	 * didn't happen (no mappings), mpnt will be NULL */
> +	if (mpnt)
> +		__flush_cache_page(mpnt, addr, page_to_phys(page));
> +#endif
> +
>  }
>  EXPORT_SYMBOL(flush_dcache_page);
>  
> 
> 


-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [PATCH] parisc: Improve dcache flush on PA8800/PA8900
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> The usual case would be just one address to flush.  Would it be too
> much overhead to do a prescan to determine if there are inequivalent
> aliases before doing any flushes?  I think I'll try this.

Testing the following.  Dropped debug message.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 3f11331..e57c3e8 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -75,14 +75,16 @@ EXPORT_SYMBOL(flush_cache_all_local);
 void
 update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
 {
-	struct page *page = pte_page(*ptep);
+        unsigned long pfn = pte_pfn(*ptep);
+        struct page *page;
 
-	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
-	    test_bit(PG_dcache_dirty, &page->flags)) {
+        if (!pfn_valid(pfn))
+                return;
 
-		flush_kernel_dcache_page(page);
-		clear_bit(PG_dcache_dirty, &page->flags);
-	} else if (parisc_requires_coherency())
+        page = pfn_to_page(pfn);
+
+        if (test_and_clear_bit(PG_dcache_dirty, &page->flags)
+	    || parisc_requires_coherency())
 		flush_kernel_dcache_page(page);
 }
 
@@ -276,10 +278,10 @@ __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 void flush_dcache_page(struct page *page)
 {
 	struct address_space *mapping = page_mapping(page);
-	struct vm_area_struct *mpnt;
+	struct vm_area_struct *mpnt, *old_mpnt;
 	struct prio_tree_iter iter;
 	unsigned long offset;
-	unsigned long addr, old_addr = 0;
+	unsigned long addr, old_addr;
 	pgoff_t pgoff;
 
 	if (mapping && !mapping_mapped(mapping)) {
@@ -292,26 +294,51 @@ void flush_dcache_page(struct page *page)
 	if (!mapping)
 		return;
 
+	old_addr = 0;
+	old_mpnt = NULL;
 	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 
 	/* We have carefully arranged in arch_get_unmapped_area() that
-	 * *any* mappings of a file are always congruently mapped (whether
-	 * declared as MAP_PRIVATE or MAP_SHARED), so we only need
-	 * to flush one address here for them all to become coherent */
+	 * all shared mappings of a file are congruently mapped, so we
+	 * only need to flush one address here for them all to become
+	 * coherent.  However, non-shared fixed mappings of executables
+	 * are not congruently mapped on the boundary page between text
+	 * and data.  Further, the data segment sometimes occurs before
+	 * the text segment.  While it is unlikely that a dirty cache
+	 * line would result from accesses through the text mapping,
+	 * it is possible that this could occur since binutils doesn't
+	 * ensure that the data segment starts on a page boundary.  */
 
 	flush_dcache_mmap_lock(mapping);
+
+	/* Scan for inequivalent aliases.  */
 	vma_prio_tree_foreach(mpnt, &iter, &mapping->i_mmap, pgoff, pgoff) {
 		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
 		addr = mpnt->vm_start + offset;
 
-		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
-			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
-				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
+		if (old_addr == 0) {
 			old_addr = addr;
+			old_mpnt = mpnt;
 		}
+		else if ((old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1)))
+			goto flush_inequivalent;
+	}
+	flush_dcache_mmap_unlock(mapping);
+
+	/* Handle common case where all aliases are equivalent.  */
+	if (old_addr)
+		__flush_cache_page(old_mpnt, old_addr, page_to_phys(page));
+	return;
+
+flush_inequivalent:
+	vma_prio_tree_foreach(mpnt, &iter, &mapping->i_mmap, pgoff, pgoff) {
+		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
+		addr = mpnt->vm_start + offset;
+
+		__flush_cache_page(mpnt, addr, page_to_phys(page));
 	}
 	flush_dcache_mmap_unlock(mapping);
+	return;
 }
 EXPORT_SYMBOL(flush_dcache_page);
 
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..f0cb56e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
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On Thu, 10 Feb 2011, John David Anglin wrote:

> > The usual case would be just one address to flush.  Would it be too
> > much overhead to do a prescan to determine if there are inequivalent
> > aliases before doing any flushes?  I think I'll try this.
> 
> Testing the following.  Dropped debug message.

Although I didn't see any slow timer messages, I still had a number of
GCC testsuite timeouts.  I didn't see these timeouts with interrupts
disabled.  So, I plan to see if read write locks can be used without
disabling interrupts.

In any case, I believe it is useful to proceed with the parts of the
change where there is agreement.  Note that the change to update_mmu_cache
is more than a optimization when parisc_requires_coherency is true as
the code no longer flushes when the pfn is not valid.

As noted, I'm seeing much improved stability on my rp3440 with this change.

Signed-off-by: John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 3f11331..e57c3e8 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -75,14 +75,16 @@ EXPORT_SYMBOL(flush_cache_all_local);
 void
 update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
 {
-	struct page *page = pte_page(*ptep);
+        unsigned long pfn = pte_pfn(*ptep);
+        struct page *page;
 
-	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
-	    test_bit(PG_dcache_dirty, &page->flags)) {
+        if (!pfn_valid(pfn))
+                return;
 
-		flush_kernel_dcache_page(page);
-		clear_bit(PG_dcache_dirty, &page->flags);
-	} else if (parisc_requires_coherency())
+        page = pfn_to_page(pfn);
+
+        if (test_and_clear_bit(PG_dcache_dirty, &page->flags)
+	    || parisc_requires_coherency())
 		flush_kernel_dcache_page(page);
 }
 
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..f0cb56e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
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From - Thu Nov 08 21:06:51 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Improve dcache flush on PA8800/PA8900
Date: Sun, 13 Feb 2011 14:39:35 -0500
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On Sat, 12 Feb 2011, John David Anglin wrote:

> On Thu, 10 Feb 2011, John David Anglin wrote:
> 
> > > The usual case would be just one address to flush.  Would it be too
> > > much overhead to do a prescan to determine if there are inequivalent
> > > aliases before doing any flushes?  I think I'll try this.
> > 
> > Testing the following.  Dropped debug message.
> 
> Although I didn't see any slow timer messages, I still had a number of
> GCC testsuite timeouts.  I didn't see these timeouts with interrupts
> disabled.  So, I plan to see if read write locks can be used without
> disabling interrupts.

Read write locks won't work.  "spin_lock_irq(&mapping->tree_lock)" is
used extensively in the mm code.

To get a better idea of the maps when we have INEQUIVALENT ALIASES, I
changed the code to print the complete set.  old_addr is the first address
in the list.

Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x40a7e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x40a7e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x41a7e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x41e7e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x41e7e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027e000 in
 file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x40a7e000 in
 file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in
 file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in
 file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x41e7e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x41e7e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4127e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4127e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x40e7e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x40a7e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4127e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027e000 in file libc-2.11.2.so with flags 0x8100077
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x40a7d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x40a7d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x41a7d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x41e7d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x41e7d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x40a7d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x41e7d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x41e7d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4127d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4127d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x40e7d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x40a7d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4127d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4067d000 in file libc-2.11.2.so with flags 0x8100075
Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027d000 in file libc-2.11.2.so with flags 0x8100075

As can be seen, the list is quite long and contains numerous duplicate entries.
I think all the entries with VM_WRITE set in flags are equivalent.  Same for
the entries where VM_WRITE is not set.  I'm not sure what can be assumed
about the list order, but the two sets are grouped in this case.  So, the
technique used in James' change seems reasonably good for this case.

It might be two passes over the list should be used to first flush shared
writeable maps, and then another pass to invalidate the other maps.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:51 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Section mismatch seen building 2.6.38-rc4-next-20110211+
Date: Sun, 13 Feb 2011 22:49:16 -0500
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WARNING: vmlinux.o(.data+0x241b0): Section mismatch in reference from the variab
le lba_driver to the function .init.text:lba_driver_probe()
The variable lba_driver references
the function __init lba_driver_probe()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, 

WARNING: vmlinux.o(.data+0x24250): Section mismatch in reference from the variab
le superio_driver to the function .init.text:superio_probe()
The variable superio_driver references
the function __init superio_probe()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, 

Good news is the kernel (UP 32-bit) boots without problems on c3750.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [PATCH] parisc: Improve dcache flush on PA8800/PA8900
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On Sun, 13 Feb 2011, John David Anglin wrote:

> Feb 13 07:00:24 mx3210 kernel: INEQUIVALENT ALIASES 0x40a7e000 and 0x4027d000 in file libc-2.11.2.so with flags 0x8100075

I'm testing a binutils change to the default linker scrip for ld to
align the file offset for the data segment to a page boundary.  This
should eliminate this source of inequivalent aliases.

> It might be two passes over the list should be used to first flush shared
> writeable maps, and then another pass to invalidate the other maps.

I made the following change to flush_dcache_page().  Although a bit ugly,
it handles the boundary page issue in one pass.

With it, I see another type of inequivalent aliases in the GCC C testsuite:

Feb 14 07:48:06 mx3210 kernel: INEQUIVALENT ALIASES: page 0x4282e520 addr 0x40738000 in file libc-2.11.2.so with flags 0x8100075
Feb 14 07:48:06 mx3210 kernel: INEQUIVALENT ALIASES: page 0x4282e520 addr 0x40738000 in file libc-2.11.2.so with flags 0x8100075
Feb 14 07:48:06 mx3210 kernel: INEQUIVALENT ALIASES: page 0x4282e520 addr 0x40738000 in file libc-2.11.2.so with flags 0x8100075
...
Feb 14 07:48:06 mx3210 kernel: INEQUIVALENT ALIASES: page 0x4282e520 addr 0x4033
8000 in file libc-2.11.2.so with flags 0x8100075
Feb 14 07:48:06 mx3210 kernel: INEQUIVALENT ALIASES: page 0x4282e520 addr 0x40f3
8000 in file libc-2.11.2.so with flags 0x8100075
Feb 14 07:48:06 mx3210 kernel: INEQUIVALENT ALIASES: page 0x4282e520 addr 0x411e
8000 in file libc-2.11.2.so with flags 0x8000071

i haven't tracked down where these come from but this looks like a glibc issue.
Note the final vm_flags value for the final map.  This is the inequivalent one.
As far as I know, the GCC testsuite does not play with MAP_FIXED maps.

Carlos, any thoughts on where this might come from?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 3f11331..f90a330 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -276,10 +278,10 @@ __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 void flush_dcache_page(struct page *page)
 {
 	struct address_space *mapping = page_mapping(page);
-	struct vm_area_struct *mpnt;
+	struct vm_area_struct *mpnt, *mpnt_wrt, *mpnt_nwrt;
 	struct prio_tree_iter iter;
 	unsigned long offset;
-	unsigned long addr, old_addr = 0;
+	unsigned long addr, addr_wrt, addr_nwrt;
 	pgoff_t pgoff;
 
 	if (mapping && !mapping_mapped(mapping)) {
@@ -292,26 +294,69 @@ void flush_dcache_page(struct page *page)
 	if (!mapping)
 		return;
 
+	addr_wrt = 0;
+	mpnt_wrt = NULL;
+	addr_nwrt = 0;
+	mpnt_nwrt = NULL;
 	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 
 	/* We have carefully arranged in arch_get_unmapped_area() that
-	 * *any* mappings of a file are always congruently mapped (whether
-	 * declared as MAP_PRIVATE or MAP_SHARED), so we only need
-	 * to flush one address here for them all to become coherent */
+	 * all shared mappings of a file are congruently mapped, so we
+	 * only need to flush one address here for them all to become
+	 * coherent.  However, non-shared fixed mappings of executables
+	 * are not congruently mapped on the boundary page between text
+	 * and data.  Further, the data segment sometimes occurs before
+	 * the text segment.  While it is unlikely that a dirty cache
+	 * line would result from accesses through the text mapping,
+	 * it is possible that this could occur since binutils doesn't
+	 * ensure that the data segment starts on a page boundary.  */
 
 	flush_dcache_mmap_lock(mapping);
+
+	/* Scan for inequivalent aliases.  */
 	vma_prio_tree_foreach(mpnt, &iter, &mapping->i_mmap, pgoff, pgoff) {
 		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
 		addr = mpnt->vm_start + offset;
 
-		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
-			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
-				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
-			old_addr = addr;
+		if (mpnt->vm_flags & VM_WRITE) {
+			if (addr_wrt == 0) {
+				addr_wrt = addr;
+				mpnt_wrt = mpnt;
+			}
+			else if ((addr_wrt & (SHMLBA - 1)) != (addr & (SHMLBA - 1)))
+				goto flush_inequivalent;
 		}
+		else {
+			if (addr_nwrt == 0) {
+				addr_nwrt = addr;
+				mpnt_nwrt = mpnt;
+			}
+			else if ((addr_nwrt & (SHMLBA - 1)) != (addr & (SHMLBA - 1)))
+				goto flush_inequivalent;
+		}
+	}
+	flush_dcache_mmap_unlock(mapping);
+
+	/* Common case where all writeable aliases are equivalent and
+	 * all non writeable aliases are equivalent.  */
+	if (addr_wrt)
+		__flush_cache_page(mpnt_wrt, addr_wrt, page_to_phys(page));
+	if (addr_nwrt &&
+	    (!addr_wrt || (addr_nwrt & (SHMLBA - 1)) != (addr_wrt & (SHMLBA - 1))))
+		__flush_cache_page(mpnt_nwrt, addr_nwrt, page_to_phys(page));
+	return;
+
+flush_inequivalent:
+	vma_prio_tree_foreach(mpnt, &iter, &mapping->i_mmap, pgoff, pgoff) {
+		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
+		addr = mpnt->vm_start + offset;
+
+		printk(KERN_ERR "INEQUIVALENT ALIASES: page 0x%lx addr 0x%lx in file %s with flags 0x%lx\n", (unsigned long) page, addr, mpnt->vm_file ? (char *) mpnt->vm_file->f_path.dentry->d_name.name : "(null)", mpnt->vm_flags);
+
+		__flush_cache_page(mpnt, addr, page_to_phys(page));
 	}
 	flush_dcache_mmap_unlock(mapping);
+	return;
 }
 EXPORT_SYMBOL(flush_dcache_page);
 
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On Mon, Feb 14, 2011 at 8:58 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> Feb 14 07:48:06 mx3210 kernel: INEQUIVALENT ALIASES: page 0x4282e520 =
addr 0x411e
> 8000 in file libc-2.11.2.so with flags 0x8000071
>
> i haven't tracked down where these come from but this looks like a gl=
ibc issue.
> Note the final vm_flags value for the final map. =A0This is the inequ=
ivalent one.
> As far as I know, the GCC testsuite does not play with MAP_FIXED maps=
=2E
>
> Carlos, any thoughts on where this might come from?

Could you more clearly describe exactly what is the problem from
glibc's perspective?

The dynamic loader will do a non-fixed mapping to cover the entire
range of the PIC code needed to load into memory. This ensures it has
enough space to map segments. Then it follows up by using MAP_FIXED to
exactly map the segment from the file into memory. It also maps
remaining pages at MAP_FIXED from fd=3D-1 (zero fill).

Locale archives are also mapped in via MAP_FIXED (after a non-fixed map=
ping).

Malloc uses MAP_FIXED and PROT_NONE (inaccessible) when shrinking
internal heaps e.g. it uses MAP_FIXED to single out the pages that are
no longer accessible (in a secure glibc it uses madvise
(MADV_DONTNEED).

Malloc under some conditions may mremap with MREMAP_FIXED.

Those are the glibc instances of MAP_FIXED maps that I can find.

Cheers,
Carlos.
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [PATCH] parisc: Improve dcache flush on PA8800/PA8900
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On Tue, 15 Feb 2011, Carlos O'Donell wrote:

> On Mon, Feb 14, 2011 at 8:58 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> > Feb 14 07:48:06 mx3210 kernel: INEQUIVALENT ALIASES: page 0x4282e52=
0 addr 0x411e
> > 8000 in file libc-2.11.2.so with flags 0x8000071
> >
> > i haven't tracked down where these come from but this looks like a =
glibc issue.
> > Note the final vm_flags value for the final map. =A0This is the ine=
quivalent one.
> > As far as I know, the GCC testsuite does not play with MAP_FIXED ma=
ps.
> >
> > Carlos, any thoughts on where this might come from?
>=20
> Could you more clearly describe exactly what is the problem from
> glibc's perspective?

It's a little hard to tell since I haven't found the application
the causes the above inequivalent aliases.

=46rom a kernel perspective, we need to avoid multiple maps of the same
memory page with inequivalent virtual addresses (i.e., the maps must
start at the same address & 0x3fffff).

Inequivalent maps only result from the use of MAP_FIXED.  All
the maps with VM_READ and VM_EXEC are equivalent in this case,
so it's fairly clear that the map is for a code segment of
libc-2.11.2.so.  There is one map with just the VM_READ flag
that is not equivalent.  Because there are multiple maps to the
same memory page, the page is in effect shared.

Ideally, glibc should use equivalent aliases for all maps that
it creates when they are "shared" as above.

> The dynamic loader will do a non-fixed mapping to cover the entire
> range of the PIC code needed to load into memory. This ensures it has
> enough space to map segments. Then it follows up by using MAP_FIXED t=
o
> exactly map the segment from the file into memory. It also maps
> remaining pages at MAP_FIXED from fd=3D-1 (zero fill).

I tend to think this is the problem area.  I will try to find a
testcase.

> Locale archives are also mapped in via MAP_FIXED (after a non-fixed m=
apping).
>=20
> Malloc uses MAP_FIXED and PROT_NONE (inaccessible) when shrinking
> internal heaps e.g. it uses MAP_FIXED to single out the pages that ar=
e
> no longer accessible (in a secure glibc it uses madvise
> (MADV_DONTNEED).
>=20
> Malloc under some conditions may mremap with MREMAP_FIXED.
>=20
> Those are the glibc instances of MAP_FIXED maps that I can find.

None of these appear to involve executable maps to a file.

Dave
--=20
J. David Anglin                                  dave.anglin@nrc-cnrc.g=
c.ca
National Research Council of Canada              (613) 990-0752 (FAX: 9=
52-6602)
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On Tue, 2011-02-15 at 11:47 -0500, John David Anglin wrote:
> On Tue, 15 Feb 2011, Carlos O'Donell wrote:
> 
> > On Mon, Feb 14, 2011 at 8:58 PM, John David Anglin
> > <dave@hiauly1.hia.nrc.ca> wrote:
> > > Feb 14 07:48:06 mx3210 kernel: INEQUIVALENT ALIASES: page 0x4282e520 addr 0x411e
> > > 8000 in file libc-2.11.2.so with flags 0x8000071
> > >
> > > i haven't tracked down where these come from but this looks like a glibc issue.
> > > Note the final vm_flags value for the final map.  This is the inequivalent one.
> > > As far as I know, the GCC testsuite does not play with MAP_FIXED maps.
> > >
> > > Carlos, any thoughts on where this might come from?
> > 
> > Could you more clearly describe exactly what is the problem from
> > glibc's perspective?
> 
> It's a little hard to tell since I haven't found the application
> the causes the above inequivalent aliases.

There was a prink in the inequivalent alias detector that printed
task->comm (that's the process name) if you add it back it will give
more information.

> >From a kernel perspective, we need to avoid multiple maps of the same
> memory page with inequivalent virtual addresses (i.e., the maps must
> start at the same address & 0x3fffff).

If I understand what you've done: you already patched the kernel to
force MAP_FIXED onto this boundary.  If that's the case, the actual
problem must be an offset mapping; meaning something maps a region and
then maps a subregion of it.  I've got to guess this is the dynamic
loader.

> Inequivalent maps only result from the use of MAP_FIXED.  All
> the maps with VM_READ and VM_EXEC are equivalent in this case,
> so it's fairly clear that the map is for a code segment of
> libc-2.11.2.so.  There is one map with just the VM_READ flag
> that is not equivalent.  Because there are multiple maps to the
> same memory page, the page is in effect shared.
> 
> Ideally, glibc should use equivalent aliases for all maps that
> it creates when they are "shared" as above.
> 
> > The dynamic loader will do a non-fixed mapping to cover the entire
> > range of the PIC code needed to load into memory. This ensures it has
> > enough space to map segments. Then it follows up by using MAP_FIXED to
> > exactly map the segment from the file into memory. It also maps
> > remaining pages at MAP_FIXED from fd=-1 (zero fill).
> 
> I tend to think this is the problem area.  I will try to find a
> testcase.

Great, thanks!  Just getting an application (or .c file) that does this
will give us a better opportunity to analyse what the problem is.

James


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> There was a prink in the inequivalent alias detector that printed
> task->comm (that's the process name) if you add it back it will give
> more information.

Will add and rerun GCC testsuite.

> > >From a kernel perspective, we need to avoid multiple maps of the same
> > memory page with inequivalent virtual addresses (i.e., the maps must
> > start at the same address & 0x3fffff).
> 
> If I understand what you've done: you already patched the kernel to
> force MAP_FIXED onto this boundary.  If that's the case, the actual
> problem must be an offset mapping; meaning something maps a region and
> then maps a subregion of it.  I've got to guess this is the dynamic
> loader.

This only occurs for MAP_FIXED and MAP_SHARED.  MAP_FIXED alone
still maps at the address specified by the application.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: binutils change break glibc build
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To: Carlos O'Donell <carlos@systemhalted.org>
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Hi Carlos,

I would like to apply the following binutils change to align data
segments to a page boundary.  However, it breaks building glibc.
Problem occurs in call_init trying to run constructors for new
libc.so.6.

Any thoughts?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: emulparams/hppalinux.sh
===================================================================
RCS file: /cvs/src/src/ld/emulparams/hppalinux.sh,v
retrieving revision 1.14
diff -u -3 -p -r1.14 hppalinux.sh
--- emulparams/hppalinux.sh	22 Oct 2008 05:20:44 -0000	1.14
+++ emulparams/hppalinux.sh	15 Feb 2011 14:30:24 -0000
@@ -8,6 +8,8 @@ NO_REL_RELOCS=yes
 TEXT_START_ADDR=0x10000
 TARGET_PAGE_SIZE=0x10000
 MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
+DATA_ADDR="ALIGN(${MAXPAGESIZE})"
+SHLIB_DATA_ADDR="ALIGN(${MAXPAGESIZE})"
 ARCH=hppa
 MACHINE=hppa1.1    # We use 1.1 specific features.
 NOP=0x08000240
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Cc: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
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On Tue, 15 Feb 2011, James Bottomley wrote:

> > I tend to think this is the problem area.  I will try to find a
> > testcase.
> 
> Great, thanks!  Just getting an application (or .c file) that does this
> will give us a better opportunity to analyse what the problem is.

I have found a testcase.  Unfortunately, it's almost impossible to debug.
It a GCC guality test.  These tests launch gdb and then have gdb print
debug info at various breakpoints.  If run with strace, this prevents
gdb from attaching and the inequivalent alias state doesn't occur ;(

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Wed, 16 Feb 2011, John David Anglin wrote:

> Hi Carlos,
> 
> I would like to apply the following binutils change to align data
> segments to a page boundary.  However, it breaks building glibc.
> Problem occurs in call_init trying to run constructors for new
> libc.so.6.

It's probably not a glibc issue:

/home2/dave/debian/glibc/eglibc-2.11.2/build-tree/hppa-libc/libc.so.6:     file 
format elf32-hppa-linux

Contents of section .init_array:
 159008 ffffffff 0015bee2 00000000           ............    

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:51 2018
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> On Wed, 16 Feb 2011, John David Anglin wrote:
> 
> > Hi Carlos,
> > 
> > I would like to apply the following binutils change to align data
> > segments to a page boundary.  However, it breaks building glibc.
> > Problem occurs in call_init trying to run constructors for new
> > libc.so.6.
> 
> It's probably not a glibc issue:
> 
> /home2/dave/debian/glibc/eglibc-2.11.2/build-tree/hppa-libc/libc.so.6:     file 
> format elf32-hppa-linux
> 
> Contents of section .init_array:
>  159008 ffffffff 0015bee2 00000000           ............    

Hmmm, there is no .init_array section in the installed libc.  So, maybe
it's not the patch.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:51 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: binutils change break glibc build
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On Wed, 16 Feb 2011, John David Anglin wrote:

> > On Wed, 16 Feb 2011, John David Anglin wrote:
> > 
> > > Hi Carlos,
> > > 
> > > I would like to apply the following binutils change to align data
> > > segments to a page boundary.  However, it breaks building glibc.
> > > Problem occurs in call_init trying to run constructors for new
> > > libc.so.6.
> > 
> > It's probably not a glibc issue:
> > 
> > /home2/dave/debian/glibc/eglibc-2.11.2/build-tree/hppa-libc/libc.so.6:     file 
> > format elf32-hppa-linux
> > 
> > Contents of section .init_array:
> >  159008 ffffffff 0015bee2 00000000           ............    
> 
> Hmmm, there is no .init_array section in the installed libc.  So, maybe
> it's not the patch.

It seems that glibc uses the .init_array section.  See for example
dlfcn.c.  Howe did this work before?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: GCC 4.5 regression
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Hi all,


I've spotted this regression while testing gcc 4.5.2.
It hangs while doing one of the configure test of diffutils.

I've attached a reduced test case. The program is supposed to
segfault because of a stack overflow. However, with 4.5, it just hangs.
It seems that 4.5 simply over-optimize the function and replaces it
with a single jump.

Should I open a PR ?
Do you need other info ?

Here is how gcc is configured :

terminator test # gcc-4.4.5 -v
Using built-in specs.
Target: hppa2.0-unknown-linux-gnu
Configured
with: /var/tmp/portage/sys-devel/gcc-4.4.5/work/gcc-4.4.5/configure
--prefix=/usr --bindir=/usr/hppa2.0-unknown-linux-gnu/gcc-bin/4.4.5
--includedir=/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.4.5/include
--datadir=/usr/share/gcc-data/hppa2.0-unknown-linux-gnu/4.4.5
--mandir=/usr/share/gcc-data/hppa2.0-unknown-linux-gnu/4.4.5/man
--infodir=/usr/share/gcc-data/hppa2.0-unknown-linux-gnu/4.4.5/info
--with-gxx-include-dir=/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.4.5/include/g++-v4
--host=hppa2.0-unknown-linux-gnu --build=hppa2.0-unknown-linux-gnu
--disable-altivec --disable-fixed-point --without-ppl --without-cloog
--enable-nls --without-included-gettext --with-system-zlib
--disable-werror --enable-secureplt --disable-multilib
--enable-libmudflap --disable-libssp --enable-libgomp --enable-cld
--with-python-dir=/share/gcc-data/hppa2.0-unknown-linux-gnu/4.4.5/python
--enable-checking=release --disable-libgcj
--enable-languages=c,c++,fortran --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu
--with-bugurl=http://bugs.gentoo.org/ --with-pkgversion='Gentoo 4.4.5
p1.2, pie-0.4.5' Thread model: posix gcc version 4.4.5 (Gentoo 4.4.5
p1.2, pie-0.4.5) 


terminator test # gcc-4.5.2 -v
Using built-in specs.
COLLECT_GCC=gcc-4.5.2
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/hppa2.0-unknown-linux-gnu/4.5.2/lto-wrapper
Target: hppa2.0-unknown-linux-gnu
Configured
with: /var/tmp/portage/sys-devel/gcc-4.5.2/work/gcc-4.5.2/configure
--prefix=/usr --bindir=/usr/hppa2.0-unknown-linux-gnu/gcc-bin/4.5.2
--includedir=/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.5.2/include
--datadir=/usr/share/gcc-data/hppa2.0-unknown-linux-gnu/4.5.2
--mandir=/usr/share/gcc-data/hppa2.0-unknown-linux-gnu/4.5.2/man
--infodir=/usr/share/gcc-data/hppa2.0-unknown-linux-gnu/4.5.2/info
--with-gxx-include-dir=/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.5.2/include/g++-v4
--host=hppa2.0-unknown-linux-gnu --build=hppa2.0-unknown-linux-gnu
--disable-altivec --disable-fixed-point --without-ppl --without-cloog
--disable-lto --enable-nls --without-included-gettext
--with-system-zlib --disable-werror --enable-secureplt
--disable-multilib --enable-libmudflap --disable-libssp
--enable-libgomp --enable-cld
--with-python-dir=/share/gcc-data/hppa2.0-unknown-linux-gnu/4.5.2/python
--enable-checking=release --disable-libgcj
--enable-languages=c,c++,fortran --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu
--with-bugurl=http://bugs.gentoo.org/ --with-pkgversion='Gentoo 4.5.2
p1.0, pie-0.4.5' Thread model: posix gcc version 4.5.2 (Gentoo 4.5.2
p1.0, pie-0.4.5) 




Cheers,
  Guy
--MP_/ljMs9lDAGTYgROg94kOBU4.
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#include <unistd.h>

static int recurse (char *a)
 {
   char tmp[500];
   *tmp = *a + 1;
   return recurse(tmp);
 }

int main (void) {
   return recurse ("\1");
}


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On Thu, 17 Feb 2011, Guy Martin wrote:

> I've spotted this regression while testing gcc 4.5.2.
> It hangs while doing one of the configure test of diffutils.
> 
> I've attached a reduced test case. The program is supposed to
> segfault because of a stack overflow. However, with 4.5, it just hangs.
> It seems that 4.5 simply over-optimize the function and replaces it
> with a single jump.
> 
> Should I open a PR ?

My sense is the test is wrong and the optimization is correct.

Optimizations such as this are done at the tree and rtl level.
For the most part, backends do not perform loop optimizations.
So, if you think the generated code is incorrect based on the
C standard, then a PR should be opened.

There are quite a few '-f' options that affect optimization behavior.
So, you may be able to disable loop optimizations and restore the
previous behavior.

There may be a newer autoconf test available.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Feb 17, 2011 at 7:15 PM, Guy Martin <gmsoft@tuxicoman.be> wrote:
> I've attached a reduced test case. The program is supposed to
> segfault because of a stack overflow. However, with 4.5, it just hangs.
> It seems that 4.5 simply over-optimize the function and replaces it
> with a single jump.

http://bugs.gentoo.org/show_bug.cgi?id=340923

It's known and fixed. It's not a gcc regression, nor is it
HPPA-specific (didn't you try to confirm that it was HPPA-specific? :)

The reason you're hitting it is that you've keyworded gcc-4.5.2, but
aren't running a full ~hppa system. vapier doesn't seem to acknowledge
that this is a reasonable, sensible, or even common configuration.

Anyway, false alarm.

Matt
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Wed, 16 Feb 2011, John David Anglin wrote:

> > > It's probably not a glibc issue:
> > > 
> > > /home2/dave/debian/glibc/eglibc-2.11.2/build-tree/hppa-libc/libc.so.6:     file 
> > > format elf32-hppa-linux
> > > 
> > > Contents of section .init_array:
> > >  159008 ffffffff 0015bee2 00000000           ............    
> > 
> > Hmmm, there is no .init_array section in the installed libc.  So, maybe
> > it's not the patch.

This is a binutils bug introduced by merging .ctors into .init_array.
That's where the ffffffff and 00000000 values come from.  They actual
mark the limits of the .ctors list.

It can be avoided by building binutils with --disable-initfini-array.
This is not exactly obvious...

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Wed, Feb 16, 2011 at 8:09 PM, John David Anglin wrote:
> On Wed, 16 Feb 2011, John David Anglin wrote:
>> I would like to apply the following binutils change to align data
>> segments to a page boundary. =A0However, it breaks building glibc.
>> Problem occurs in call_init trying to run constructors for new
>> libc.so.6.
>
> It's probably not a glibc issue:
>
> /home2/dave/debian/glibc/eglibc-2.11.2/build-tree/hppa-libc/libc.so.6=
: =A0 =A0 file
> format elf32-hppa-linux
>
> Contents of section .init_array:
> =A0159008 ffffffff 0015bee2 00000000 =A0 =A0 =A0 =A0 =A0 ............

glibc-2.12 and earlier (and perhaps 2.12.[12] too) are known to be
miscompiled by binutils versions newer than 2.21.50.xxx.  the issue
has been fixed in glibc-2.13 though ...

http://bugs.gentoo.org/351177
-mike
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On Thu, Feb 17, 2011 at 8:28 PM, Matt Turner wrote:
> On Thu, Feb 17, 2011 at 7:15 PM, Guy Martin wrote:
>> I've attached a reduced test case. The program is supposed to
>> segfault because of a stack overflow. However, with 4.5, it just hangs.
>> It seems that 4.5 simply over-optimize the function and replaces it
>> with a single jump.
>
> http://bugs.gentoo.org/show_bug.cgi?id=340923
>
> It's known and fixed. It's not a gcc regression, nor is it
> HPPA-specific (didn't you try to confirm that it was HPPA-specific? :)
>
> The reason you're hitting it is that you've keyworded gcc-4.5.2, but
> aren't running a full ~hppa system. vapier doesn't seem to acknowledge
> that this is a reasonable, sensible, or even common configuration.

that's because it is not.  there's a difference between running brand
new bleeding edge versions of the toolchain on a stable system all the
time and running them for the stabilization process.  inevitably every
gcc/glibc/kernel header upgrade in ~arch breaks a shit ton of stable
packages (and even unstable packages), the vast majority of which will
be fixed by those packages stabilizing a new version as natural
progression by the time the toolchain versions have settled for
stabilization.
-mike
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: binutils change break glibc build
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To: vapier@gentoo.org (Mike Frysinger)
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> On Wed, Feb 16, 2011 at 8:09 PM, John David Anglin wrote:
> > On Wed, 16 Feb 2011, John David Anglin wrote:
> >> I would like to apply the following binutils change to align data
> >> segments to a page boundary. =A0However, it breaks building glibc.
> >> Problem occurs in call_init trying to run constructors for new
> >> libc.so.6.
> >
> > It's probably not a glibc issue:
> >
> > /home2/dave/debian/glibc/eglibc-2.11.2/build-tree/hppa-libc/libc.so.6: =
> =A0 =A0 file
> > format elf32-hppa-linux
> >
> > Contents of section .init_array:
> > =A0159008 ffffffff 0015bee2 00000000 =A0 =A0 =A0 =A0 =A0 ............
> 
> glibc-2.12 and earlier (and perhaps 2.12.[12] too) are known to be
> miscompiled by binutils versions newer than 2.21.50.xxx.  the issue
> has been fixed in glibc-2.13 though ...
> 
> http://bugs.gentoo.org/351177

While this is probably the same issue, there is no debugging of the segv
in the above bug report or in the referenced bugzilla report:
http://sourceware.org/bugzilla/show_bug.cgi?id=12379

I filed this report last night:
http://sourceware.org/bugzilla/show_bug.cgi?id=12499

My analysis indicates the segv is a binutils issue.  It was likely
introduced by the following change:

2010-12-15  H.J. Lu  <hongjiu.lu@intel.com>

        * Makefile.am (GENSCRIPTS): Add @enable_initfini_array@.

	* NEWS: Mention SORT_BY_INIT_PRIORITY.

	* configure.in: Add AC_CANONICAL_BUILD.
	Add --enable-initfini-array.

	* genscripts.sh (ENABLE_INITFINI_ARRAY): New.
	...

Binutils should not merge the special function pointers used to mark
the start and end of the .ctors/.dtors lists.  This could be tested
for in libc, but this is inefficient.  On architectures that use
function descriptors, function pointer comparisons are messy.  Do
we want to call the infamous cffc in the dynamic loader?  Casts of
function pointers to integer types are implementation defined and
pointer sizes can vary.  So, the simple hack could break.

In my opinion, binutils should be fixed to work with old glibc
versions.  There is a work around in my binutils PR.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > http://bugs.gentoo.org/show_bug.cgi?id=340923
> >
> > It's known and fixed. It's not a gcc regression, nor is it
> > HPPA-specific (didn't you try to confirm that it was
> > HPPA-specific? :)

My mistake. I hardly come accross non-hppa specific bugs :)

> >
> > The reason you're hitting it is that you've keyworded gcc-4.5.2, but
> > aren't running a full ~hppa system. vapier doesn't seem to
> > acknowledge that this is a reasonable, sensible, or even common
> > configuration.
>
> that's because it is not.  there's a difference between running brand
> new bleeding edge versions of the toolchain on a stable system all the
> time and running them for the stabilization process.  inevitably every
> gcc/glibc/kernel header upgrade in ~arch breaks a shit ton of stable
> packages (and even unstable packages), the vast majority of which will
> be fixed by those packages stabilizing a new version as natural
> progression by the time the toolchain versions have settled for
> stabilization.
> -mike

Kinda makes sens but it's probably not the right list to
discuss.

In any case, thanks everybody for the feedback. I'm quite happy this is
not a gcc issue !

  Guy

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On Fri, Feb 18, 2011 at 9:39 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> Binutils should not merge the special function pointers used to mark
> the start and end of the .ctors/.dtors lists. =A0This could be tested
> for in libc, but this is inefficient. =A0On architectures that use
> function descriptors, function pointer comparisons are messy. =A0Do
> we want to call the infamous cffc in the dynamic loader? =A0Casts of
> function pointers to integer types are implementation defined and
> pointer sizes can vary. =A0So, the simple hack could break.
>
> In my opinion, binutils should be fixed to work with old glibc
> versions. =A0There is a work around in my binutils PR.

I would like __cffc to eventually go away. It's only required because
of the incorrectly implemented PLABEL support in binutils. A PLABEL in
the executable should not be resolved to a PLT entry, it should remain
a relocation for the dynamic loader to resolve. Once that's fixed,
eventually __cffc will go away. That's a project that is only agenda
after some glibc cleanup.

Cheers,
Carlos.
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On Wed, 16 Feb 2011, John David Anglin wrote:

> I would like to apply the following binutils change to align data
> segments to a page boundary.  However, it breaks building glibc.
> Problem occurs in call_init trying to run constructors for new
> libc.so.6.

After investigation, I found that the change to emulparams/hppalinux.sh
was not the cause of the glibc breakage.  So, I have committed the change
to align data segments to a maxpagesize boundary (currently 0x1000).

This fixes one source of inequivalent aliases at the expense of
somewhat larger binaries.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Fri, Feb 18, 2011 at 1:40 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> On Wed, 16 Feb 2011, John David Anglin wrote:
>
>> I would like to apply the following binutils change to align data
>> segments to a page boundary. =A0However, it breaks building glibc.
>> Problem occurs in call_init trying to run constructors for new
>> libc.so.6.
>
> After investigation, I found that the change to emulparams/hppalinux.=
sh
> was not the cause of the glibc breakage. =A0So, I have committed the =
change
> to align data segments to a maxpagesize boundary (currently 0x1000).
>
> This fixes one source of inequivalent aliases at the expense of
> somewhat larger binaries.

A minor loss for a significant gain :-)

Cheers,
Carlos.
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On Fri, Feb 18, 2011 at 1:40 PM, John David Anglin wrote:
> On Wed, 16 Feb 2011, John David Anglin wrote:
>> I would like to apply the following binutils change to align data
>> segments to a page boundary. =A0However, it breaks building glibc.
>> Problem occurs in call_init trying to run constructors for new
>> libc.so.6.
>
> After investigation, I found that the change to emulparams/hppalinux.=
sh
> was not the cause of the glibc breakage. =A0So, I have committed the =
change
> to align data segments to a maxpagesize boundary (currently 0x1000).
>
> This fixes one source of inequivalent aliases at the expense of
> somewhat larger binaries.

as long as we dont move to the ridiculous mips-sized default
alignment, i'm sure the new behavior is more sane ;)
-mike
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On Fri, 18 Feb 2011, Carlos O'Donell wrote:

> > This fixes one source of inequivalent aliases at the expense of
> > somewhat larger binaries.
> 
> A minor loss for a significant gain :-)

After rebuilding glibc with the new binutils, I no longer see any
INEQUIVALENT ALIASES messages building and checking GCC.

My suggestion to use VM_WRITE doesn't work as a method to distinguish
aliases as gdb sets up writeable maps to text pages.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Feb 21, 2011 at 7:13 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> On Fri, 18 Feb 2011, Carlos O'Donell wrote:
>
>> > This fixes one source of inequivalent aliases at the expense of
>> > somewhat larger binaries.
>>
>> A minor loss for a significant gain :-)
>
> After rebuilding glibc with the new binutils, I no longer see any
> INEQUIVALENT ALIASES messages building and checking GCC.
>
> My suggestion to use VM_WRITE doesn't work as a method to distinguish
> aliases as gdb sets up writeable maps to text pages.

Excellent, does that mean that glibc does not create inequivalent
aliases with all of its tom-foolery with mmap?

Cheers,
Carlos.
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Tue, 22 Feb 2011, Carlos O'Donell wrote:

> Excellent, does that mean that glibc does not create inequivalent
> aliases with all of its tom-foolery with mmap?

It's hard to say for sure.  The kernel message only occurs when a
data cache flush is needed for a specific page.  Typically, that's
when a segv or abort occurs.

I believe that we are still doing full cache flushes on exec, exit
and fork.  I tried recently to kill the flush on fork but the kernel
tried to kill init.  This needs more study.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: COW break issue. Where is the patch ?
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Hi all,

I'm running into some python test failures which I believe is caused by
the COW break issue and I'd like to test the patch out.

I've been trying to look through all the mail threads but I can't find
it.

Can someone let me know where the patch is and possibly send it
upstream ?


Thanks,
  Guy
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From - Thu Nov 08 21:06:53 2018
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Subject: Re: COW break issue. Where is the patch ?
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On Tue, 22 Feb 2011, Guy Martin wrote:

> I'm running into some python test failures which I believe is caused by
> the COW break issue and I'd like to test the patch out.
> 
> I've been trying to look through all the mail threads but I can't find
> it.
> 
> Can someone let me know where the patch is and possibly send it
> upstream ?

As far as I know, there isn't a final patch.  The original suggestion
was here:
http://permalink.gmane.org/gmane.linux.ports.parisc/2754

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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On Tue, 22 Feb 2011, Guy Martin wrote:

> I'm running into some python test failures which I believe is caused by
> the COW break issue and I'd like to test the patch out.
> 
> I've been trying to look through all the mail threads but I can't find
> it.

You might try the attached change to see if it helps.  SMP lightly tested.

Possibly, using flush_dcache_page is overkill and it might not do the
exactly the right thing, but it resolves changing the calling interface
for ptep_set_wrprotect.  There also might be some race conditions.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 5d7b8ce..4924e23 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -450,20 +450,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 	return old_pte;
 }
 
-static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
-{
-#ifdef CONFIG_SMP
-	unsigned long new, old;
-
-	do {
-		old = pte_val(*ptep);
-		new = pte_val(pte_wrprotect(__pte (old)));
-	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
-#else
-	pte_t old_pte = *ptep;
-	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
-#endif
-}
+extern void ptep_set_wrprotect(struct mm_struct *, unsigned long, pte_t *);
 
 #define pte_same(A,B)	(pte_val(A) == pte_val(B))
 
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 3f11331..a16430d 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -502,3 +531,22 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
+
+void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+#ifdef CONFIG_SMP
+        unsigned long new, old;
+
+        if (atomic_read(&mm->mm_users) > 1)
+                flush_dcache_page(pte_page(*ptep));
+        do {
+                old = pte_val(*ptep);
+                new = pte_val(pte_wrprotect(__pte (old)));
+        } while (cmpxchg((unsigned long *) ptep, old, new) != old);
+#else
+        pte_t old_pte = *ptep;
+        if (atomic_read(&mm->mm_users) > 1)
+                flush_dcache_page(pte_page(old_pte));
+        set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
+#endif
+}
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Hi Jeff,

Any luck getting this into mainline ?

Regards,
  Guy

On Tue, 7 Dec 2010 05:48:55 -0800
"Kirsher, Jeffrey T" <jeffrey.t.kirsher@intel.com> wrote:

> I will add it to my tree/queue.
> 
> Cheer,
> Jeff
> 
> 
>  -----Original Message-----
> From: 	Kyle McMartin [mailto:kyle@mcmartin.ca]
> Sent:	Monday, December 06, 2010 08:12 AM US Mountain Standard
> Time To:	Guy Martin
> Cc:	e1000-devel@lists.sourceforge.net; Mikulas Patocka;
> linux-parisc@vger.kernel.org; Kirsher, Jeffrey T Subject:	Re:
> [PATCH] e1000: Allow the driver to be used on PA RISC C8000
> workstation
> 
> On Sun, Dec 05, 2010 at 06:04:26PM +0100, Guy Martin wrote:
> > Hi all,
> > 
> > I can confirm that I've seen the very same on multiple C8000
> > workstation too.
> > 
> > Can someone please apply this patch ?
> > 
> > Tested-by: Guy Martin <gmsoft@tuxicoman.be>
> > 
> 
> It should be sent via netdev@ so that DaveM can pick it up if the
> e1000 folks do not...
> 
> --Kyle

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Subject: Re: [E1000-devel] [PATCH] e1000: Allow the driver to be used on PA
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On Mon, Feb 28, 2011 at 5:40 AM, Guy Martin <gmsoft@tuxicoman.be> wrote=
:
>
> Hi Jeff,
>
> Any luck getting this into mainline ?


Hi Guy, sorry for the delay,
We haven't been able to get our contacts in HP to give us a decent
response so far, we are following up with them to see whats up.  We
have not lost the patch and are still tracking it internally.

Give us a couple more weeks if that is okay and we should be able to
settle this by then.

> Regards,
> =A0Guy
>
> On Tue, 7 Dec 2010 05:48:55 -0800
> "Kirsher, Jeffrey T" <jeffrey.t.kirsher@intel.com> wrote:
>
> > I will add it to my tree/queue.
> >
> > Cheer,
> > Jeff
> >
> >
> > =A0-----Original Message-----
> > From: =A0 =A0 =A0 =A0 Kyle McMartin [mailto:kyle@mcmartin.ca]
> > Sent: Monday, December 06, 2010 08:12 AM US Mountain Standard
> > Time To: =A0 =A0 =A0Guy Martin
> > Cc: =A0 e1000-devel@lists.sourceforge.net; Mikulas Patocka;
> > linux-parisc@vger.kernel.org; Kirsher, Jeffrey T Subject: =A0 =A0 R=
e:
> > [PATCH] e1000: Allow the driver to be used on PA RISC C8000
> > workstation
> >
> > On Sun, Dec 05, 2010 at 06:04:26PM +0100, Guy Martin wrote:
> > > Hi all,
> > >
> > > I can confirm that I've seen the very same on multiple C8000
> > > workstation too.
> > >
> > > Can someone please apply this patch ?
> > >
> > > Tested-by: Guy Martin <gmsoft@tuxicoman.be>
> > >
> >
> > It should be sent via netdev@ so that DaveM can pick it up if the
> > e1000 folks do not...
> >
> > --Kyle
>
>
> ---------------------------------------------------------------------=
---------
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc] [PATCH] timer_interrupt: Fix "SLOW!" warning on rp3440
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The attached change fixes the "SLOW!" timer_interrupt warning that I
occassionally see on my rp3440 (800 MHz).  We need to avoid using the
expensive div/mul method.  I have seen instances where it takes more
than 0x7000 cycles.

Signed-off-by: John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 05511cc..63071c4 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -76,7 +76,7 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 6) < cpt) {
+	if ((cycles_elapsed >> 7) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
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Subject: Re: [parisc] [PATCH] timer_interrupt: Fix "SLOW!" warning on rp3440
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On Sat, 2011-03-12 at 12:08 -0500, John David Anglin wrote:
> The attached change fixes the "SLOW!" timer_interrupt warning that I
> occassionally see on my rp3440 (800 MHz).  We need to avoid using the
> expensive div/mul method.  I have seen instances where it takes more
> than 0x7000 cycles.

> Signed-off-by: John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
> 
> Dave

Your change implies that more than 2^6 == 64 ticks (that's over half a
second) can have elapsed between two calls to timer_interrupt().  That
looks like an awfully large lacuna, and is like the cause of whatever
problem you're seeing rather than the use of divide.  Parisc even has
the DS instruction that would seem to make division not so expensive.

How much more expensive is div than mul?  because if it's a lot more, we
can use a logarithmic iteration to do the division.

James


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Subject: compile failure: pacache.S and .size
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This is todays 2.6.38-rc8+git on hppa64 with
(GNU Binutils for Debian) 2.21.0.20110302. Have not tried to build an 
earlier kernel with this binutils so I do not knwo if this is a 
regression but it looks more like a problem found by new binutils.

  AS      arch/parisc/kernel/pacache.o
arch/parisc/kernel/pacache.S: Assembler messages:
arch/parisc/kernel/pacache.S:1071: Error: .size expression does not evaluate to a constant

pacache.S line 1071 ends procedure disable_sr_hashing_asm and does seem 
to do it in normal way and without typos.

        .procend
ENDPROC(disable_sr_hashing_asm)

        .end

This preprocesses to

 .procend
.size disable_sr_hashing_asm, .-disable_sr_hashing_asm

 .end

and this seems fully normal to me. Other functions assemble fine here 
but the last one in file.

-- 
Meelis Roos (mroos@linux.ee)
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc] [PATCH] timer_interrupt: Fix "SLOW!" warning on rp3440
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> 
> On Sat, 2011-03-12 at 12:08 -0500, John David Anglin wrote:
> > The attached change fixes the "SLOW!" timer_interrupt warning that I
> > occassionally see on my rp3440 (800 MHz).  We need to avoid using the
> > expensive div/mul method.  I have seen instances where it takes more
> > than 0x7000 cycles.
> 
> > Signed-off-by: John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
> > 
> > Dave
> 
> Your change implies that more than 2^6 == 64 ticks (that's over half a
> second) can have elapsed between two calls to timer_interrupt().  That
> looks like an awfully large lacuna, and is like the cause of whatever
> problem you're seeing rather than the use of divide.  Parisc even has
> the DS instruction that would seem to make division not so expensive.

No, it's not ticks.  It's cycles.  One cycle is 1/800000000 of a second
on my rp3440, so another factor of two didn't seem that expensive.  I
think the change is ok even on a 75 MHz machine.

> How much more expensive is div than mul?  because if it's a lot more, we
> can use a logarithmic iteration to do the division.

I agree that there are probably better ways to do the caculation.  I'm
not sure of the exact numbers but div is always significantly more
expensive than multiplication.  The current code probably divides twice.

If one is willing to save a couple fp regs, 32-bit hardware multiplication
is available.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: compile failure: pacache.S and .size
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On Sun, 13 Mar 2011, Meelis Roos wrote:

> This preprocesses to
> 
>  .procend
> .size disable_sr_hashing_asm, .-disable_sr_hashing_asm
> 
>  .end

It looks to me like someone may have removed the necessary whitespace before
.size in linkage.h.  It may now be necessary for parisc to define its own
version of END.  Don't think this has anything to do with binutils.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > This preprocesses to
> > 
> >  .procend
> > .size disable_sr_hashing_asm, .-disable_sr_hashing_asm
> > 
> >  .end
> 
> It looks to me like someone may have removed the necessary whitespace before
> .size in linkage.h.  It may now be necessary for parisc to define its own
> version of END.  Don't think this has anything to do with binutils.

But the defines of ENDPROC and END in linkage.h are from 2006, commit 
ab7efcc9 from Jan Beulich. This has not changed, binutils has, thus my 
idea about binutils difference. However, I do not have the old binutils 
package easyly availbale right now so I can not test that today.

-- 
Meelis Roos (mroos@linux.ee)
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Subject: Re: compile failure: pacache.S and .size
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> > > This preprocesses to
> > > 
> > >  .procend
> > > .size disable_sr_hashing_asm, .-disable_sr_hashing_asm
> > > 
> > >  .end
> > 
> > It looks to me like someone may have removed the necessary whitespace before
> > .size in linkage.h.  It may now be necessary for parisc to define its own
> > version of END.  Don't think this has anything to do with binutils.
> 
> But the defines of ENDPROC and END in linkage.h are from 2006, commit 
> ab7efcc9 from Jan Beulich. This has not changed, binutils has, thus my 
> idea about binutils difference. However, I do not have the old binutils 
> package easyly availbale right now so I can not test that today.

I have not seen the problem with 2.21.51.20110218.  .size is handled
by generic code.  I find it hard to believe that .-disable_sr_hashing_asm
doesn't evaluate to a constant.  GCC always outputs a similar directive.
It would seem like almost every assembly would be broken if the problem
was with binutils.

Could you send preprocessed assembler file?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, 13 Mar 2011, Meelis Roos wrote:

> > > This preprocesses to
> > > 
> > >  .procend
> > > .size disable_sr_hashing_asm, .-disable_sr_hashing_asm
> > > 
> > >  .end
> > 
> > It looks to me like someone may have removed the necessary whitespace before
> > .size in linkage.h.  It may now be necessary for parisc to define its own
> > version of END.  Don't think this has anything to do with binutils.
> 
> But the defines of ENDPROC and END in linkage.h are from 2006, commit 
> ab7efcc9 from Jan Beulich. This has not changed, binutils has, thus my 
> idea about binutils difference. However, I do not have the old binutils 
> package easyly availbale right now so I can not test that today.

You are correct, there is a new error message for .size
http://sourceware.org/bugzilla/show_bug.cgi?id=12519
and the change was applied to the 2.21 branch.

The message was introduced because you can't size a function across
two sections.  It's not obvious why this is happening here.  So, I think
a binutils bug should be filed with preprocessed assembler.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> You are correct, there is a new error message for .size
> http://sourceware.org/bugzilla/show_bug.cgi?id=12519
> and the change was applied to the 2.21 branch.
> 
> The message was introduced because you can't size a function across
> two sections.  It's not obvious why this is happening here.  So, I think
> a binutils bug should be filed with preprocessed assembler.

http://sourceware.org/bugzilla/show_bug.cgi?id=12579 - also hase the 
preprocessed file.

-- 
Meelis Roos (mroos@linux.ee)
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> > But the defines of ENDPROC and END in linkage.h are from 2006, commit 
> > ab7efcc9 from Jan Beulich. This has not changed, binutils has, thus my 
> > idea about binutils difference. However, I do not have the old binutils 
> > package easyly availbale right now so I can not test that today.
> 
> You are correct, there is a new error message for .size
> http://sourceware.org/bugzilla/show_bug.cgi?id=12519
> and the change was applied to the 2.21 branch.
> 
> The message was introduced because you can't size a function across
> two sections.  It's not obvious why this is happening here.  So, I think
> a binutils bug should be filed with preprocessed assembler.

Got an answer from binutils bugzilla - we have a problem with
ENDPROC(flush_alias_page)
that is not started because the start is #if 0 but end is not. I did not 
understand clearly what the code intends to do but it looks there are 
just two independent functions that should have their start and end 
matched. Made a test patch to try that out, makes it compile, will test 
boot soon.

diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 09b77b2..f3d7da6 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -842,11 +842,10 @@ ENTRY(flush_alias_page)
 	.exit
 
 	.procend
+ENDPROC(flush_alias_page)
 #endif
 
-	.export flush_user_dcache_range_asm

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Subject: Re: compile failure: pacache.S and .size
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To: Meelis Roos <mroos@linux.ee>
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On Sun, 13 Mar 2011, Meelis Roos wrote:

> Got an answer from binutils bugzilla - we have a problem with
> ENDPROC(flush_alias_page)

I thought the flush_alias_page code was deleted.

It would appear the tmpalias-flush changes from James are not merged in
Linus' kernel tree.  It seems to have gone into linux-next here:
http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git;a=commitdiff;h=f311847c2fcebd81912e2f0caf8a461dec28db41

Your patch should fix the compilation problem but I think we really
want James' tmpalias-flush changes in 2.6.28 based on my testing.
Maybe it should be applied to some of the stable branches.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc] [PATCH] timer_interrupt: Fix "SLOW!" warning on rp3440
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On Sat, Mar 12, 2011 at 12:08:32PM -0500, John David Anglin wrote:
> The attached change fixes the "SLOW!" timer_interrupt warning that I
> occassionally see on my rp3440 (800 MHz).  We need to avoid using the
> expensive div/mul method.  I have seen instances where it takes more
> than 0x7000 cycles.

Hi Dave,
Maybe the patch should be for this line of code instead?
        if (unlikely(now2 - now > 0x3000))      /* 12K cycles */

ie increase the value slightly?

TBH, I didn't spend alot of time trying to figure out the optimal balance
between the two cases that the proposed patch attempts to adjust.

Also, if the div/mul takes up to 0x7000 cycles, another alternative
is to make the alternative faster.  What I suggested in the else case:
        /* TODO: Reduce this to one fdiv op */

doesn't seem possible with fdiv in one op. My reading of the fdiv
operator suggests it would need another FMUL and FSUB op in order
to get the remainder. Still might be vary fast.

Looking through PA 2.0 arch book, looks like the PA2.0
"Divide Step" (DS) operation (page 7-46) does what I was thinking of.
But that's going to require a sequence of DS instructions that
I don't quite understand at the moment and thus can't say how
fast the worst case for DS might be.

hth,
grant


> Signed-off-by: John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
> 
> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
> index 05511cc..63071c4 100644
> --- a/arch/parisc/kernel/time.c
> +++ b/arch/parisc/kernel/time.c
> @@ -76,7 +76,7 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
>  
>  	cycles_elapsed = now - next_tick;
>  
> -	if ((cycles_elapsed >> 6) < cpt) {
> +	if ((cycles_elapsed >> 7) < cpt) {
>  		/* use "cheap" math (add/subtract) instead
>  		 * of the more expensive div/mul method
>  		 */
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
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Subject: Re: [parisc] [PATCH] timer_interrupt: Fix "SLOW!" warning on rp3440
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> On Sat, Mar 12, 2011 at 12:08:32PM -0500, John David Anglin wrote:
> > The attached change fixes the "SLOW!" timer_interrupt warning that I
> > occasionally see on my rp3440 (800 MHz).  We need to avoid using the
> > expensive div/mul method.  I have seen instances where it takes more
> > than 0x7000 cycles.
> 
> Hi Dave,
> Maybe the patch should be for this line of code instead?
>         if (unlikely(now2 - now > 0x3000))      /* 12K cycles */
> 
> ie increase the value slightly?

I tried that initially.  After bumping it a couple of times, it
seemed like more iterations in the `if' alternative was better as
most instructions only take one cycle.  My sense is that we only
exceed the current limit in rare circumstances.

> TBH, I didn't spend alot of time trying to figure out the optimal balance
> between the two cases that the proposed patch attempts to adjust.
> 
> Also, if the div/mul takes up to 0x7000 cycles, another alternative
> is to make the alternative faster.  What I suggested in the else case:
>         /* TODO: Reduce this to one fdiv op */
> 
> doesn't seem possible with fdiv in one op. My reading of the fdiv
> operator suggests it would need another FMUL and FSUB op in order
> to get the remainder. Still might be vary fast.
> 
> Looking through PA 2.0 arch book, looks like the PA2.0
> "Divide Step" (DS) operation (page 7-46) does what I was thinking of.
> But that's going to require a sequence of DS instructions that
> I don't quite understand at the moment and thus can't say how
> fast the worst case for DS might be.

Currently, I believe that the kernel does integer multiplication
and division using millicode.  If I remember correctly, division
uses the DS instruction.  The situation is worse for 64-bit operations
because HP never released their 64-bit millicode code.  So, gcc does
long division in this case.

I haven't seen any SLOW warnings with the patch I suggested but it
may be a bit inefficient.  I have the sense that the problem occurs
on the rp3440 because it has two dual core cpus.  I have never seen
the warning on machines with a single processor chip.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Mar 13, 2011 at 05:58:37PM -0600, Grant Grundler wrote:
> Also, if the div/mul takes up to 0x7000 cycles, another alternative
> is to make the alternative faster.  What I suggested in the else case:
>         /* TODO: Reduce this to one fdiv op */
> 
> doesn't seem possible with fdiv in one op. My reading of the fdiv
> operator suggests it would need another FMUL and FSUB op in order
> to get the remainder. Still might be vary fast.
> 
> Looking through PA 2.0 arch book, looks like the PA2.0
> "Divide Step" (DS) operation (page 7-46) does what I was thinking of.

Besides spelling "vary" wrong, I wanted to note "ds" is also defined in PA1.1.

> But that's going to require a sequence of DS instructions that
> I don't quite understand at the moment and thus can't say how
> fast the worst case for DS might be.

As I expected, someone already implemented divu using DS in 1992:
    http://www.cs.bham.ac.uk/research/projects/poplog/src/master/C.hppa/src/aarith.s

Essentially the same code is in OpenBSD and also NetBSD:
  http://www.openssh.com/cgi-bin/cvsweb/src/sys/arch/hppa/spmath/divu.S?rev=1.10&content-type=text/x-cvsweb-markup

It's not obvious to me where divU is defined for linux kernel use but
that's probably the right thing to use here. I believe it's part of
"stdlib" and ISTR used by gcc.

cheers,
grant
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On Sun, Mar 13, 2011 at 09:22:34PM -0400, John David Anglin wrote:
...
> > Hi Dave,
> > Maybe the patch should be for this line of code instead?
> >         if (unlikely(now2 - now > 0x3000))      /* 12K cycles */
> > 
> > ie increase the value slightly?
> 
> I tried that initially.  After bumping it a couple of times, it
> seemed like more iterations in the `if' alternative was better as
> most instructions only take one cycle.  My sense is that we only
> exceed the current limit in rare circumstances.

Ok. If your patch avoids the case, then it's certainly worth entertaining.

> > TBH, I didn't spend alot of time trying to figure out the optimal balance
> > between the two cases that the proposed patch attempts to adjust.
> > 
> > Also, if the div/mul takes up to 0x7000 cycles, another alternative
> > is to make the alternative faster.  What I suggested in the else case:
> >         /* TODO: Reduce this to one fdiv op */
> > 
> > doesn't seem possible with fdiv in one op. My reading of the fdiv
> > operator suggests it would need another FMUL and FSUB op in order
> > to get the remainder. Still might be vary fast.
> > 
> > Looking through PA 2.0 arch book, looks like the PA2.0
> > "Divide Step" (DS) operation (page 7-46) does what I was thinking of.
> > But that's going to require a sequence of DS instructions that
> > I don't quite understand at the moment and thus can't say how
> > fast the worst case for DS might be.
> 
> Currently, I believe that the kernel does integer multiplication
> and division using millicode.  If I remember correctly, division
> uses the DS instruction.  The situation is worse for 64-bit operations
> because HP never released their 64-bit millicode code.  So, gcc does
> long division in this case.

The URL I provided in other reply:
    http://www.cs.bham.ac.uk/research/projects/poplog/src/master/C.hppa/src/aarith.s

implemented 64-bit/32-bit math. Should be easy to integrate.


> I haven't seen any SLOW warnings with the patch I suggested but it
> may be a bit inefficient.  I have the sense that the problem occurs
> on the rp3440 because it has two dual core cpus.  I have never seen
> the warning on machines with a single processor chip.

The dual core might be competing for a shared resource related to FP?
I don't know either. But if your patch avoids the warning, I'd say apply
it until someone else cares enough to integrate the 64-bit divU and
make use of it here.

cheers,
grant
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> The URL I provided in other reply:
>     http://www.cs.bham.ac.uk/research/projects/poplog/src/master/C.hppa/src/aarith.s
> 
> implemented 64-bit/32-bit math. Should be easy to integrate.

I'll take a look.  The milli64.S file we currently have in gcc only has
32-bit divI and divU routines.  It seems the URL has a routine with a 64-bit
dividend.

Dave
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While trying to compile 2.6.38-rc8-00065 on hppa64 with new binutils 
2.21.0.20110302 I hit a problem with inline asm in 64-bit variant of 
csum_ipv6_magic() with first network driver that used it:

  CC [M]  drivers/net/atl1c/atl1c_main.o                    
drivers/net/atl1c/atl1c_main.c:2543: warning: 'atl1c_resume' defined but not used
{standard input}: Assembler messages:
{standard input}:4996: Error: Invalid Add Condition: dc
{standard input}:4997: Error: Invalid Add Condition: dc
{standard input}:4998: Error: Invalid Add Condition: dc
{standard input}:4999: Error: Invalid Add Condition: dc
make[3]: *** [drivers/net/atl1c/atl1c_main.o] Error 1

arch/parisc/include/asm/checksum.h has the corresponding inline asm - it 
seems that add,dc is not accepted by the new binutils.

#define _HAVE_ARCH_IPV6_CSUM
static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
                                          const struct in6_addr *daddr,
                                          __u32 len, unsigned short proto,
                                          __wsum sum)
{
        __asm__ __volatile__ (

#if BITS_PER_LONG > 32

        /*
        ** We can execute two loads and two adds per cycle on PA 8000.
        ** But add insn's get serialized waiting for the carry bit.
        ** Try to keep 4 registers with "live" values ahead of the ALU.
        */

"       ldd,ma          8(%1), %%r19\n" /* get 1st saddr word */
"       ldd,ma          8(%2), %%r20\n" /* get 1st daddr word */
"       add             %8, %3, %3\n"/* add 16-bit proto + len */
"       add             %%r19, %0, %0\n"
"       ldd,ma          8(%1), %%r21\n" /* 2cd saddr */
"       ldd,ma          8(%2), %%r22\n" /* 2cd daddr */
"       add,dc          %%r20, %0, %0\n"
"       add,dc          %%r21, %0, %0\n"
"       add,dc          %%r22, %0, %0\n"
"       add,dc          %3, %0, %0\n"  /* fold in proto+len | carry bit */
"       extrd,u         %0, 31, 32, %%r19\n"    /* copy upper half down */
"       depdi           0, 31, 32, %0\n"        /* clear upper half */
"       add             %%r19, %0, %0\n"        /* fold into 32-bits */
"       addc            0, %0, %0\n"            /* add carry */

#else  



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> While trying to compile 2.6.38-rc8-00065 on hppa64 with new binutils 
> 2.21.0.20110302 I hit a problem with inline asm in 64-bit variant of 
> csum_ipv6_magic() with first network driver that used it:
> 
>   CC [M]  drivers/net/atl1c/atl1c_main.o                    
> drivers/net/atl1c/atl1c_main.c:2543: warning: 'atl1c_resume' defined but not used
> {standard input}: Assembler messages:
> {standard input}:4996: Error: Invalid Add Condition: dc
> {standard input}:4997: Error: Invalid Add Condition: dc
> {standard input}:4998: Error: Invalid Add Condition: dc
> {standard input}:4999: Error: Invalid Add Condition: dc

Yuck!  I hadn't realized that the change that caused this was backported
to 2.21.  The change fixed something that wasn't really a problem and
broke dc and db.

This is fixed on binutils head.  Can you use it?

Dave
-- 
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To: Prasad Joshi <prasadjoshi124@gmail.com>,
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__vmalloc: propagating GFP allocation flag.

- adds functions to allow caller to pass the GFP flag for memory allocation
- helps in fixing the Bug 30702 (__vmalloc(GFP_NOFS) can callback
		  file system evict_inode).

Signed-off-by: Anand Mitra <mitra@kqinfotech.com>
Signed-off-by: Prasad Joshi <prasadjoshi124@gmail.com>
---
Chnagelog:
arch/parisc/include/asm/pgalloc.h |   21 ++++++++++++++++-----
1 files changed, 16 insertions(+), 5 deletions(-)
---
diff --git a/arch/parisc/include/asm/pgalloc.h
b/arch/parisc/include/asm/pgalloc.h
index fc987a1..0284a43 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -61,15 +61,20 @@ static inline void pgd_populate(struct mm_struct
*mm, pgd_t *pgd, pmd_t *pmd)
 		        (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT));
 }

-static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+static inline pmd_t *
+__pmd_alloc_one(struct mm_struct *mm, unsigned long address, gfp_t gfp_mask)
 {
-	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
-					       PMD_ORDER);
+	pmd_t *pmd = (pmd_t *)__get_free_pages(gfp_mask, PMD_ORDER);
 	if (pmd)
 		memset(pmd, 0, PAGE_SIZE<<PMD_ORDER);
 	return pmd;
 }

+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+	return __pmd_alloc_one(mm, address, GFP_KERNEL | __GFP_REPEAT);
+}
+
 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 {
 #ifdef CONFIG_64BIT
@@ -90,6 +95,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
  * inside the pgd, so has no extra memory associated with it.
  */

+#define __pmd_alloc_one(mm, addr, mask)		({ BUG(); ((pmd_t *)2); })
 #define pmd_alloc_one(mm, addr)		({ BUG(); ((pmd_t *)2); })
 #define pmd_free(mm, x)			do { } while (0)
 #define pgd_populate(mm, pmd, pte)	BUG()
@@ -127,10 +133,15 @@ pte_alloc_one(struct mm_struct *mm, unsigned long address)
 }

 static inline pte_t *
+__pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr,
gfp_t gfp_mask)
+{
+	return (pte_t *)__get_free_page(gfp_mask | __GFP_ZERO);
+}
+
+static inline pte_t *
 pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 {
-	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
-	return pte;
+	return __pte_alloc_one_kernel(mm, addr, GFP_KERNEL | __GFP_REPEAT);
 }

 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
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From - Thu Nov 08 21:06:55 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: "add,dc" problem with new binutils in csum_ipv6_magic asm
Date: Mon, 14 Mar 2011 18:32:52 -0400
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To: Meelis Roos <mroos@linux.ee>
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On Mon, 14 Mar 2011, Meelis Roos wrote:

> While trying to compile 2.6.38-rc8-00065 on hppa64 with new binutils 
> 2.21.0.20110302 I hit a problem with inline asm in 64-bit variant of 
> csum_ipv6_magic() with first network driver that used it:
> 
>   CC [M]  drivers/net/atl1c/atl1c_main.o                    
> drivers/net/atl1c/atl1c_main.c:2543: warning: 'atl1c_resume' defined but not used
> {standard input}: Assembler messages:
> {standard input}:4996: Error: Invalid Add Condition: dc
> {standard input}:4997: Error: Invalid Add Condition: dc
> {standard input}:4998: Error: Invalid Add Condition: dc
> {standard input}:4999: Error: Invalid Add Condition: dc
> make[3]: *** [drivers/net/atl1c/atl1c_main.o] Error 1
> 
> arch/parisc/include/asm/checksum.h has the corresponding inline asm - it 
> seems that add,dc is not accepted by the new binutils.

I backported the fix from binutils mainline.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.drivers.e1000.devel
Subject: Re: [E1000-devel] [PATCH] e1000: Allow the driver to be used on PA RISC C8000 workstation
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To: Jesse Brandeburg <jesse.brandeburg@gmail.com>
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Am Mittwoch, 2. M=E4rz 2011, 21:19:24 schrieb Jesse Brandeburg:
> On Mon, Feb 28, 2011 at 5:40 AM, Guy Martin <gmsoft@tuxicoman.be> wro=
te:
> > Hi Jeff,
> >=20
> > Any luck getting this into mainline ?
>=20
> Hi Guy, sorry for the delay,
> We haven't been able to get our contacts in HP to give us a decent
> response so far, we are following up with them to see whats up.  We
> have not lost the patch and are still tracking it internally.
>=20
> Give us a couple more weeks if that is okay and we should be able to
> settle this by then.

Hi all,

I wonder what exactly you are waiting for? This is a sanity check that =
we=20
disable, so no working systems could get broken by this. And every sing=
le=20
C8000 seems to be affected by this and is working fine with that patch.=
 So maybe=20
people at HP might have a clue _why_ this is screwed, but until then I =
don't=20
see any point in waiting.

So please just add my tested-by and push this upstream soon. Since this=
 is=20
basically a hardware quirk I would like to get this into stable also so=
 we may=20
run vanilla 2.6.38.1 or something like that on C8000.

Tested-by: Rolf Eike Beer <eike-kernel@sf-tec.de>

Eike
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Subject: [RFC][PATCH v3 00/22] __vmalloc: Propagating GFP allocation flag
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Xref: news.gmane.org gmane.linux.ports.parisc:3505 gmane.linux.kernel.cross-arch:9431 gmane.linux.kernel:1115073 gmane.linux.kernel.mm:60134 gmane.linux.ports.sh.devel:10389 gmane.linux.ports.ppc64.devel:73148 gmane.linux.ports.mips.general:30499 gmane.linux.uclinux.microblaze:11523 gmane.linux.ports.ia64:21581 gmane.linux.ports.alpha:1374
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/3505>

A filesystem might run into a problem while calling __vmalloc(GFP_NOFS)
inside a lock.

It is expected than __vmalloc when called with GFP_NOFS should not
callback the filesystem code even incase of the increased memory
pressure. But the problem is that even if we pass this flag, __vmalloc
itself allocates memory with GFP_KERNEL.

Using GFP_KERNEL allocations may go into the memory reclaim path and try
to free memory by calling file system evict_inode function. Which might
lead into deadlock.

For further details
http://marc.info/?l=linux-mm&m=128942194520631&w=4
https://bugzilla.kernel.org/show_bug.cgi?id=30702

The patch passes the gfp allocation flag all the way down to those
allocating functions.

 arch/arm/include/asm/pgalloc.h           |   11 +++++-
 arch/avr32/include/asm/pgalloc.h         |    8 ++++-
 arch/cris/include/asm/pgalloc.h          |   10 ++++-
 arch/frv/include/asm/pgalloc.h           |    3 ++
 arch/frv/include/asm/pgtable.h           |    1 +
 arch/frv/mm/pgalloc.c                    |    9 ++++-
 arch/ia64/include/asm/pgalloc.h          |   24 +++++++++++--
 arch/m32r/include/asm/pgalloc.h          |   11 ++++--
 arch/m68k/include/asm/motorola_pgalloc.h |   20 +++++++++--
 arch/m68k/include/asm/sun3_pgalloc.h     |   14 ++++++--
 arch/m68k/mm/memory.c                    |    9 ++++-
 arch/microblaze/include/asm/pgalloc.h    |    3 ++
 arch/microblaze/mm/pgtable.c             |   13 +++++--
 arch/mips/include/asm/pgalloc.h          |   22 ++++++++----
 arch/mn10300/include/asm/pgalloc.h       |    2 +
 arch/mn10300/mm/pgtable.c                |   10 ++++-
 arch/parisc/include/asm/pgalloc.h        |   21 ++++++++---
 arch/powerpc/include/asm/pgalloc-32.h    |    2 +
 arch/powerpc/include/asm/pgalloc-64.h    |   27 +++++++++++---
 arch/powerpc/mm/pgtable_32.c             |   10 ++++-
 arch/s390/include/asm/pgalloc.h          |   30 +++++++++++++---
 arch/s390/mm/pgtable.c                   |   22 +++++++++---
 arch/score/include/asm/pgalloc.h         |   13 ++++---
 arch/sh/include/asm/pgalloc.h            |    8 ++++-
 arch/sh/mm/pgtable.c                     |    8 ++++-
 arch/sparc/include/asm/pgalloc_32.h      |    5 +++
 arch/sparc/include/asm/pgalloc_64.h      |   17 ++++++++-
 arch/tile/include/asm/pgalloc.h          |   13 ++++++-
 arch/tile/mm/pgtable.c                   |   10 ++++-
 arch/um/include/asm/pgalloc.h            |    1 +
 arch/um/kernel/mem.c                     |   21 ++++++++---
 arch/x86/include/asm/pgalloc.h           |   17 ++++++++-
 arch/x86/mm/pgtable.c                    |    8 ++++-
 arch/xtensa/include/asm/pgalloc.h        |    9 ++++-
 arch/xtensa/mm/pgtable.c                 |   11 +++++-
 include/asm-generic/4level-fixup.h       |    8 +++-
 include/asm-generic/pgtable-nopmd.h      |    3 +-
 include/asm-generic/pgtable-nopud.h      |    1 +
 include/linux/mm.h                       |   40 ++++++++++++++++-----
 mm/memory.c                              |   14 ++++---
 mm/vmalloc.c                             |   57 ++++++++++++++++++++----------
 41 files changed, 427 insertions(+), 119 deletions(-)

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From - Thu Nov 08 21:06:55 2018
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From: Prasad Joshi <prasadjoshi124@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [RFC][PATCH v3 11/22] mm, parisc: add gfp flags variant of pmd
 and pte allocations
Date: Fri, 18 Mar 2011 19:59:26 +0000
Lines: 87
Approved: news@gmane.org
Message-ID: <20110318195926.GL4746@prasad-kvm>
References: <20110318194341.GB4746@prasad-kvm>
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- Added __pte_alloc_one_kernel() function to allocate zeroed page using
   passed allocation flag. The function pte_alloc_one_kernel() is changed to
   call __pte_alloc_one_kernel() passing GFP_KERNEL | __GFP_REPEAT allocation
   flags.

2-level page table support
- Added macro __pmd_alloc_one which is same as pmd_alloc_one, but has an extra
  argument to pass gfp_t

3-level page table support
- Added function __pmd_alloc_one() to allocate pages using allocation flag.
  The allocation flag is argument to the function.

- The function pmd_alloc_one() is changed to call __pmd_alloc_one(), passing
  GFP_KERNEL | __GFP_REPEAT allocation flags.

- All these changes help in fixing the Bug 30702

Signed-off-by: Prasad Joshi <prasadjoshi124@gmail.com>
Signed-off-by: Anand Mitra <mitra@kqinfotech.com>
---
 arch/parisc/include/asm/pgalloc.h |   21 ++++++++++++++++-----
 1 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index fc987a1..0284a43 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -61,15 +61,20 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
 		        (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT));
 }
 
-static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+static inline pmd_t *
+__pmd_alloc_one(struct mm_struct *mm, unsigned long address, gfp_t gfp_mask)
 {
-	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
-					       PMD_ORDER);
+	pmd_t *pmd = (pmd_t *)__get_free_pages(gfp_mask, PMD_ORDER);
 	if (pmd)
 		memset(pmd, 0, PAGE_SIZE<<PMD_ORDER);
 	return pmd;
 }
 
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+	return __pmd_alloc_one(mm, address, GFP_KERNEL | __GFP_REPEAT);
+}
+
 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 {
 #ifdef CONFIG_64BIT
@@ -90,6 +95,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
  * inside the pgd, so has no extra memory associated with it.
  */
 
+#define __pmd_alloc_one(mm, addr, mask)		({ BUG(); ((pmd_t *)2); })
 #define pmd_alloc_one(mm, addr)		({ BUG(); ((pmd_t *)2); })
 #define pmd_free(mm, x)			do { } while (0)
 #define pgd_populate(mm, pmd, pte)	BUG()
@@ -127,10 +133,15 @@ pte_alloc_one(struct mm_struct *mm, unsigned long address)
 }
 
 static inline pte_t *
+__pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr, gfp_t gfp_mask)
+{
+	return (pte_t *)__get_free_page(gfp_mask | __GFP_ZERO);
+}
+
+static inline pte_t *
 pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 {
-	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
-	return pte;
+	return __pte_alloc_one_kernel(mm, addr, GFP_KERNEL | __GFP_REPEAT);
 }
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-- 
1.7.0.4

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From - Thu Nov 08 21:06:55 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: linux-next boot failure
Date: Sun, 20 Mar 2011 16:16:15 -0400
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The current linux-next tree fails to boot on parisc.  I have seen
the same panic on two different systems.  2.6.38-rc5-next-20110218
is ok.  2.6.38-rc8-next-20110311 failed to boot.  The backtrace is
the same in all cases.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Command line for kernel: ' root=/dev/sda3 console=ttyS0 palo_kernel=1/vmlinux'
Selected kernel: /vmlinux from partition 1
Selected ramdisk: /initrd.img from partition 1
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4866048 mediaptr 0x1000
Segment 1 load 00611fd0 size 441320 mediaptr 0x4a5fd0
Segment 2 load 00680000 size 323392 mediaptr 0x512000
Loading ramdisk 11915351 bytes @ 3f491000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.38-rc8-next-20110311+ (dave@gsyprf11) (gcc version 4.5.3 20101230 (prerelease) [gcc-4_5-branch revision 168358] (GCC) ) #1 SMP Sun Mar 13 18:59:47 PDT 2011
[    0.000000] unwind_init: start = 0x404ce000, end = 0x404ff7d0, entries = 12669
[    0.000000] FP[0] enabled: Rev 1 Model 19
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00005e30 00000491 00000000 00000001 312b7146 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000203
[    0.000000] CPUID vers 19 rev 8 (0x00000268)
[    0.000000] capabilities 0x5
[    0.000000] model 9000/800/A500-7X
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 MB
[    0.000000]  1) Start 0x0000000100000000 End 0x00000001ffffffff Size   4096 MB
[    0.000000]  2) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 MB
[    0.000000] Total Memory: 8192 MB
[    0.000000] initrd: 7f491000-7ffee057
[    0.000000] initrd: reserving 3f491000-3ffee057 (mem_max 200000000)
[    0.000000] PERCPU: Embedded 10 pages/cpu @0000000044abe000 s12096 r8192 d20672 u40960
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 2068480
[    0.000000] Kernel command line:  root=/dev/sda3 console=ttyS0 palo_kernel=1/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[    0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.000000] Memory: 8226048k/8388608k available (3261k kernel code, 162560k reserved, 1440k data, 316k init)
[    0.000000] virtual kernel memory layout:
[    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
[    0.000000]     memory  : 0x0000000040000000 - 0x0000001140000000   (69632 MB)
[    0.000000]       .init : 0x0000000040680000 - 0x00000000406cf000   ( 316 kB)
[    0.000000]       .data : 0x000000004042f560 - 0x00000000405977a0   (1440 kB)
[    0.000000]       .text : 0x0000000040100000 - 0x000000004042f560   (3261 kB)
[    0.000000] Hierarchical RCU implementation.
[    0.000000] 	RCU-based detection of stalled CPUs is disabled.
[    0.000000] NR_IRQS:128
[    0.000000] Console: colour dummy device 160x64
[    0.000000] Calibrating delay loop... 1495.04 BogoMIPS (lpj=2990080)
[    0.224000] pid_max: default: 32768 minimum: 301
[    0.224000] Mount-cache hash table entries: 256
[    0.272000] Initializing cgroup subsys ns
[    0.276000] ns_cgroup deprecated: consider using the 'clone_children' flag without the ns_cgroup.
[    0.412000] Initializing cgroup subsys cpuacct
[    0.552000] Initializing cgroup subsys devices
[    0.552000] Brought up 1 CPUs
[    0.556000] NET: Registered protocol family 16
[    0.692000] EISA bus registered
[    0.692000] Searching for devices...
[    0.964000] Found devices:
[    0.964000] 1. Crescendo 750 W2 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5e3, 0x00004 }
[    0.968000] 2. Crescendo 750 W2 at 0xfffffffffffa2000 [162] { 0, 0x0, 0x5e3, 0x00004 }
[    0.968000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x09b, 0x00009 }
[    1.108000] 4. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
[    1.248000] 5. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
[    1.388000] 6. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
[    1.528000] 7. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
[    1.528000] 8. Elroy PCI Bridge at 0xfffffffffed3c000 [0/6] { 13, 0x0, 0x782, 0x0000a }
[    1.668000] Enabling PDC_PAT chass
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
[    3.168000] Freeing initrd memory: 11636k freed
[    3.176000] Chassis warnings not supported.
[    3.176000] Performance monitoring counters enabled for Crescendo 750 W2
[    3.180000] audit: initializing netlink socket (disabled)
[    3.180000] type=2000 audit(1300143168.900:1): initialized
[    3.192000] VFS: Disk quotas dquot_6.5.2
[    3.192000] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    3.200000] msgmni has been set to 16089
[    3.200000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[    3.204000] io scheduler noop registered
[    3.204000] io scheduler deadline registered
[    3.212000] io scheduler cfq registered (default)
[    3.216000] PDC Stable Storage facility v0.30
[    3.768000] STI GSC/PCI core graphics driver Version 0.9a
[    3.768000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    3.768000] serial 0000:00:04.1: enabling device (0142 -> 0143)
[    3.792000] 0000:00:04.1: ttyS0 at MMIO 0xfffffffff8000000 (irq = 70) is a 16550A
[    3.792000] console [ttyS0] enabled, bootconsole disabled
[    3.792000] console [ttyS0] enabled, bootconsole disabled
[    3.792000] 0000:00:04.1: ttyS1 at MMIO 0xfffffffff8000008 (irq = 70) is a 16450
[    3.832000] 0000:00:04.1: ttyS2 at MMIO 0xfffffffff8000010 (irq = 70) is a 16550A
[    3.972000] 0000:00:04.1: ttyS3 at MMIO 0xfffffffff8000030 (irq = 70) is a 16550A
[    4.096000] Couldn't register serial port 0000:00:04.1: -28
[    4.112000] brd: module loaded
[    4.112000] mousedev: PS/2 mouse device common for all mice
[    4.248000] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[    4.400000] TCP cubic registered
[    4.400000] NET: Registered protocol family 17
[    4.400000] Registering the dns_resolver key type
[    4.548000] registered taskstats version 1
[    4.552000] rtc-generic rtc-generic: setting syste
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
[    5.468000] Backtrace:
[    5.468000]  [<00000000402de880>] string.clone.2+0x50/0xe8
[    5.468000]  [<00000000402df6ac>] vsnprintf+0x23c/0x450
[    5.468000]  [<00000000402d7a84>] add_uevent_var+0x94/0x110
[    5.468000]  [<0000000040359690>] dev_uevent+0x138/0x1e0
[    5.580000]  [<00000000402d7de4>] kobject_uevent_env+0x23c/0x640
[    5.580000]  [<00000000402d81fc>] kobject_uevent+0x14/0x20
[    5.732000]  [<0000000040357f3c>] store_uevent+0x4c/0x88
[    5.748000]  [<0000000040356e68>] dev_attr_store+0x28/0x38
[    5.880000]  [<000000004027ecf4>] sysfs_write_file+0x124/0x190
[    6.032000]  [<0000000040206c68>] vfs_write+0xa8/0x188
[    6.032000]  [<0000000040206fd0>] sys_write+0x60/0xa0
[    6.108000]  [<0000000040105034>] syscall_exit+0x0/0x14
[    6.180000] 
[    6.180000] 
[    6.180000] Bad Address (null pointer deref?): Code=15 regs=000000012c988940 (Addr=000006c000000000)
[    6.332000] 
[    6.332000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[    6.480000] PSW: 00001000000001001111111000001111 Not tainted
[    6.480000] r00-03  000000ff0804fe0f 000000004067ced0 00000000402de880 000000012c9d3145
[    6.632000] r04-07  000000004065eed0 000000012c9d3904 0009cec000000000 0000000000000000
[    6.784000] r08-11  ffffffffffffffff 00000000000007c6 0000000000000025 0000000000000020
[    6.908000] r12-15  00000000404938cf 000000012c988798 0000000000000011 000000012c9d3145
[    6.932000] r16-19  0000000000000002 000000000000006c 000000000000007a 00000000402df57c
[    7.084000] r20-23  00000000402df688 000000000000ffff 000000000000ffff 0000000000000000
[    7.232000] r24-27  0009cec000000000 ffffffffffffffff 0009cec000000000 000000004065eed0
[    7.384000] r28-31  0009cec000000000 000000012c988910 000000012c988940 0000000000000004
[    7.384000] sr00-03  0000000000017000 0000000000000000 0000000000000000 0000000000017000
[    7.532000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    7.684000] 
[    7.684000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402dc7e0 00000000402dc7e4
[    7.836000]  IIR: 0f80101f    ISR: 000000000009c800  IOR: 000006c000000000
[    7.836000]  CPU:        1   CR30: 000000012c988000 CR31: ffef7dfff7fdffff
[    7.988000]  ORIG_R28: 000000012c988af0
[    7.988000]  IAOQ[0]: strnlen+0x10/0x28
[    8.136000]  IAOQ[1]: strnlen+0x14/0x28
[    8.136000]  RP(r2): string.clone.2+0x50/0xe8
[    8.288000] Backtrace:
[    8.288000]  [<00000000402de880>] string.clone.2+0x50/0xe8
[    8.288000]  [<00000000402df6ac>] vsnprintf+0x23c/0x450
[    8.436000]  [<00000000402d7a84>] add_uevent_var+0x94/0x110
[    8.436000]  [<0000000040359690>] dev_uevent+0x138/0x1e0
[    8.588000]  [<00000000402d7de4>] kobject_uevent_env+0x23c/0x640
[    8.588000]  [<00000000402d81fc>] kobject_uevent+0x14/0x20
[    8.740000]  [<0000000040357f3c>] store_uevent+0x4c/0x88
[    8.740000]  [<0000000040356e68>] dev_attr_store+0x28/0x38
[    8.888000]  [<000000004027ecf4>] sysfs_write_file+0x124/0x190
[    8.888000]  [<0000000040206c68>] vfs_write+0xa8/0x188
[    9.040000]  [<0000000040206fd0>] sys_write+0x60/0xa0
[    9.040000]  [<0000000040105034>] syscall_exit+0x0/0x14
[    9.192000] 
[    9.192000] Kernel panic - not syncing: Bad Address (null pointer deref?)
[    9.344000] Backtrace:
[    9.344000]  [<00000000401169d8>] dump_stack+0x18/0x28
[    9.344000]  [<0000000040116abc>] panic+0xd4/0x350
[    9.492000]  [<000000004011e6a0>] parisc_terminate+0x168/0x170
[    9.492000]  [<000000004011c63c>] do_page_fault+0x314/0x370
[    9.644000]  [<000000004011ed9c>] handle_interruption+0x6f4/0x718
[    9.
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         FLASH     ON         ON
LED State: System Running.  Unexpected Reboot.  Non-critical Error Detected.
Check Chassis and Console Logs for error messages.

processor                 system panic               1B00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************


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From - Thu Nov 08 21:06:55 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: compile failure: pacache.S and .size
Date: Sun, 20 Mar 2011 18:20:26 -0400
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References: <alpine.SOC.1.00.1103130004110.6027@math.ut.ee> <20110313000323.GA17493@hiauly1.hia.nrc.ca> <alpine.SOC.1.00.1103130235020.7773@math.ut.ee> <20110313041046.GA19769@hiauly1.hia.nrc.ca> <alpine.SOC.1.00.1103132139410.24035@math.ut.ee>
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To: Meelis Roos <mroos@linux.ee>
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On Sun, 13 Mar 2011, Meelis Roos wrote:

> diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
> index 09b77b2..f3d7da6 100644
> --- a/arch/parisc/kernel/pacache.S
> +++ b/arch/parisc/kernel/pacache.S
> @@ -842,11 +842,10 @@ ENTRY(flush_alias_page)
>  	.exit
>  
>  	.procend
> +ENDPROC(flush_alias_page)
>  #endif
>  
> -	.export flush_user_dcache_range_asm
> -
> -flush_user_dcache_range_asm:
> +ENTRY(flush_user_dcache_range_asm)
>  	.proc
>  	.callinfo NO_CALLS
>  	.entry
> @@ -865,7 +864,7 @@ flush_user_dcache_range_asm:
>  	.exit
>  
>  	.procend
> -ENDPROC(flush_alias_page)
> +ENDPROC(flush_user_dcache_range_asm)
>  
>  ENTRY(flush_kernel_dcache_range_asm)
>  	.proc

Suggest officially submitting above change.  It corrects obvious
problems with pacache.S.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:56 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: linux-next boot failure
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On Sun, 2011-03-20 at 16:16 -0400, John David Anglin wrote:
> The current linux-next tree fails to boot on parisc.  I have seen
> the same panic on two different systems.  2.6.38-rc5-next-20110218
> is ok.  2.6.38-rc8-next-20110311 failed to boot.  The backtrace is
> the same in all cases.

I don't see this in get head as of this morning, so it's likely in an
unmerged branch.  If you can find it, I might be able to have the
culprit fix it before it does get merged.

James

P.S. I also try not to run -next around the merge window, because it
gets very unstable (all the rules violators trying to get a last fix in)

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From - Thu Nov 08 21:06:56 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: [GIT PULL] parisc updates for the 2.6.38 merge window
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There are two major changes in this: one is our full conversion to the
generic IRQ handlers thanks to tglx and the other is switching us to use
tmpalias flushing (a change which means that our coherency no-longer
relies on the mechanics of page tables being present).  We still have
quite a lot of work to do, but the change to tmpalias flushing is at
last allowing us to track down some of the very infrequent coherency
issues on the platform.

The patch is available here:

master.kernel.org:/pub/scm/linux/kernel/git/jejb/parisc-2.6.git#for-linus

The short changelog is:

James Bottomley (3):
      [PARISC] fix vmap flush/invalidate
      eliminate special FLUSH flag from page table
      parisc: flush pages through tmpalias space

Thomas Gleixner (2):
      [PARISC] Convert to new irq_chip functions
      [PARISC] fix per-cpu flag problem in the cpu affinity checkers

And the diffstat

 arch/parisc/Kconfig                  |    1 +
 arch/parisc/include/asm/cacheflush.h |   31 +++--
 arch/parisc/include/asm/irq.h        |   13 +--
 arch/parisc/include/asm/pgtable.h    |   14 +--
 arch/parisc/kernel/cache.c           |  109 +++-------------
 arch/parisc/kernel/entry.S           |  217 +++++++++++++++++-------------
 arch/parisc/kernel/irq.c             |   64 +++++----
 arch/parisc/kernel/pacache.S         |  245 +++++++++++++++-------------------
 drivers/parisc/dino.c                |   22 ++--
 drivers/parisc/eisa.c                |   12 +-
 drivers/parisc/gsc.c                 |   22 ++--
 drivers/parisc/iosapic.c             |   40 +++---
 drivers/parisc/superio.c             |   12 +-
 13 files changed, 375 insertions(+), 427 deletions(-)

James


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From - Thu Nov 08 21:06:56 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: [PARISC] fix pacache .size with new binutils
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Currently, 2.6.38 compile fails on parisc64 because binutils complains 
that .size expression does not evaluate to a constant. The problem is 
confusion between flush_alias_page and flush_user_dcache_range_asm.

This patch fixes pacache.s compilation by adding ENDPROC to flush_alias 
page and ENTRY and correct ENDPROC to flush_user_dcache_range_asm.

Signed-off-by: Meelis Roos <mroos@linux.ee>

diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 09b77b2..f3d7da6 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -842,11 +842,10 @@ ENTRY(flush_alias_page)
 	.exit
 
 	.procend
+ENDPROC(flush_alias_page)
 #endif
 
-	.export flush_user_dcache_range_asm

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PARISC] fix pacache .size with new binutils
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On Mon, 2011-03-21 at 22:18 +0200, Meelis Roos wrote:
> Currently, 2.6.38 compile fails on parisc64 because binutils complains 
> that .size expression does not evaluate to a constant. The problem is 
> confusion between flush_alias_page and flush_user_dcache_range_asm.
> 
> This patch fixes pacache.s compilation by adding ENDPROC to flush_alias 
> page and ENTRY and correct ENDPROC to flush_user_dcache_range_asm.
> 
> Signed-off-by: Meelis Roos <mroos@linux.ee>
> 
> diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
> index 09b77b2..f3d7da6 100644
> --- a/arch/parisc/kernel/pacache.S
> +++ b/arch/parisc/kernel/pacache.S
> @@ -842,11 +842,10 @@ ENTRY(flush_alias_page)
>  	.exit
>  
>  	.procend
> +ENDPROC(flush_alias_page)
>  #endif
>  
> -	.export flush_user_dcache_range_asm
> -
> -flush_user_dcache_range_asm:
> +ENTRY(flush_user_dcache_range_asm)
>  	.proc
>  	.callinfo NO_CALLS
>  	.entry
> @@ -865,7 +864,7 @@ flush_user_dcache_range_asm:
>  	.exit
>  
>  	.procend
> -ENDPROC(flush_alias_page)
> +ENDPROC(flush_user_dcache_range_asm)
>  
>  ENTRY(flush_kernel_dcache_range_asm)
>  	.proc

This won't apply because of upstream changes to the file
(flush_alias_page got removed) ... does the problem even still exist
upstream?

James


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From: Meelis Roos <mroos@linux.ee>
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Subject: Re: [PARISC] fix pacache .size with new binutils
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> This won't apply because of upstream changes to the file
> (flush_alias_page got removed) ... does the problem even still exist
> upstream?

Oops, did not try in last 2 days. Upstream has changed and removed this 
function and the problem is gone and the patch collapses to just a 
cleanup - do you want this:

Fix style of flush_user_dcache_range_asm procedure declaration in 
arch/parisc/kernel/pacache.s to be consistent with other assembly 
procedures.

Signed-off-by: Meelis Roos <mroos@linux.ee>

diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index a858236..93ff3d9 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -817,10 +817,7 @@ ENTRY(purge_kernel_dcache_page)
 	.procend
 ENDPROC(purge_kernel_dcache_page)
 
-
-	.export flush_user_dcache_range_asm

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From: Meelis Roos <mroos@linux.ee>
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Subject: Re: [PARISC] fix pacache .size with new binutils
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> This won't apply because of upstream changes to the file
> (flush_alias_page got removed) ... does the problem even still exist
> upstream?

By the way, the new code compiles with warnings:

  CC      arch/parisc/kernel/cache.o
arch/parisc/kernel/cache.c: In function 'flush_dcache_page':
arch/parisc/kernel/cache.c:310: warning: pointer type mismatch in conditional expression
arch/parisc/kernel/cache.c:310: warning: format '%s' expects type 'char *', but argument 4 has type 'void * const'

Is it just a lacking cast in printk argument?

-- 
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On Mon, 2011-03-21 at 22:49 +0200, Meelis Roos wrote:
> > This won't apply because of upstream changes to the file
> > (flush_alias_page got removed) ... does the problem even still exist
> > upstream?
> 
> By the way, the new code compiles with warnings:
> 
>   CC      arch/parisc/kernel/cache.o
> arch/parisc/kernel/cache.c: In function 'flush_dcache_page':
> arch/parisc/kernel/cache.c:310: warning: pointer type mismatch in conditional expression
> arch/parisc/kernel/cache.c:310: warning: format '%s' expects type 'char *', but argument 4 has type 'void * const'
> 
> Is it just a lacking cast in printk argument?

It's a reminder to me to dump the code.  However, we still don't have
agreement on the dump, and the alias warning is useful to people who are
working on the binutils update.

James



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Subject: Re: [PARISC] fix pacache .size with new binutils
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> This won't apply because of upstream changes to the file
> (flush_alias_page got removed) ... does the problem even still exist
> upstream?

The problem still exists on various longterm branches and I guess
the 2.6.38 stable branch.  Is it worth fixing these?

I have to say that 2.6.38 without the tmpalias patch is seriously
broken on PA8800.  I tried two GCC builds and they both died with
segvs very early in the build.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:56 2018
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From: James Bottomley <James.Bottomley@suse.de>
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Subject: [PATCH] fix compile breakage caused by linux/smp.h header
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The problem is this:

  CC      arch/parisc/kernel/asm-offsets.s
In file included from include/linux/sched.h:71,
                 from arch/parisc/kernel/asm-offsets.c:31:
include/linux/smp.h:117: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'setup_nr_cpu_ids'
include/linux/smp.h:118: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'smp_init'
  HOSTLD  scripts/mod/modpost
make[1]: *** [arch/parisc/kernel/asm-offsets.s] Error 1

It's caused by two __init attributes on function prototypes, which
shouldn't be there (__init should only mark functions not prototypes).
This was introduced by

commit 34db18a054c600b6f81787165669dc572fe4de25
Author: Amerigo Wang <amwang@redhat.com>
Date:   Tue Mar 22 16:34:06 2011 -0700

    smp: move smp setup functions to kernel/smp.c

Removing the spurious __init attributes fixes this

Signed-off-by: James Bottomley <James.Bottomley@suse.de>

---

We didn't pick this up in our -next compiles, presumably because the
patch moved rather fast from -next to mainline?

diff --git a/include/linux/smp.h b/include/linux/smp.h
index 48159dd..04d6e0d 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -114,8 +114,8 @@ int on_each_cpu(smp_call_func_t func, void *info, int wait);
 void smp_prepare_boot_cpu(void);
 
 extern unsigned int setup_max_cpus;
-extern void __init setup_nr_cpu_ids(void);
-extern void __init smp_init(void);
+extern void setup_nr_cpu_ids(void);
+extern void smp_init(void);
 
 #else /* !SMP */
 


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From - Thu Nov 08 21:06:56 2018
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From: Andrew Morton <akpm@linux-foundation.org>
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Subject: Re: [PATCH] fix compile breakage caused by linux/smp.h header
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On Wed, 23 Mar 2011 10:11:58 -0500 James Bottomley <James.Bottomley@suse.de> wrote:

> The problem is this:
> 
>   CC      arch/parisc/kernel/asm-offsets.s
> In file included from include/linux/sched.h:71,
>                  from arch/parisc/kernel/asm-offsets.c:31:
> include/linux/smp.h:117: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'setup_nr_cpu_ids'
> include/linux/smp.h:118: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'smp_init'
>   HOSTLD  scripts/mod/modpost
> make[1]: *** [arch/parisc/kernel/asm-offsets.s] Error 1
> 
> It's caused by two __init attributes on function prototypes,

Heiko sent a patch for this which adds the #include.

> which
> shouldn't be there (__init should only mark functions not prototypes).

Nope.  We've had build failures in the past (on arm) where the
assembler generated a short-addressed branch to a function in the
"same" section but the linker discovered that it was too far away,
because the target landed in a different section.

By correctly marking the target as __init, the compiler says "ah,
that's far away" and generates the long-form branch addressing.

I think it only happened once, and it's obviously hard to hit, because
many such prototypes of __init functions are missing the __init tag.

And as the sections are laid out contiguously (true?), that kernel must
have been real close to having the same linkage error for branches
_within_ the main .text segment.

So it's all a bit fishy and marginal, but adding the __init increases
the chances of keeping Russell happy.

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Subject: Re: [PATCH] fix compile breakage caused by linux/smp.h header
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On Wed, Mar 23, 2011 at 1:50 PM, Andrew Morton wrote:
> On Wed, 23 Mar 2011 10:11:58 -0500 James Bottomley wrote:
>> The problem is this:
>>
>> =A0 CC =A0 =A0 =A0arch/parisc/kernel/asm-offsets.s
>> In file included from include/linux/sched.h:71,
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0from arch/parisc/kernel/asm-offse=
ts.c:31:
>> include/linux/smp.h:117: error: expected '=3D', ',', ';', 'asm' or '=
__attribute__' before 'setup_nr_cpu_ids'
>> include/linux/smp.h:118: error: expected '=3D', ',', ';', 'asm' or '=
__attribute__' before 'smp_init'
>> =A0 HOSTLD =A0scripts/mod/modpost
>> make[1]: *** [arch/parisc/kernel/asm-offsets.s] Error 1
>>
>> It's caused by two __init attributes on function prototypes,
>
> Heiko sent a patch for this which adds the #include.

thanks, this broke Blackfin SMP too

>> which
>> shouldn't be there (__init should only mark functions not prototypes=
).
>
> Nope. =A0We've had build failures in the past (on arm) where the
> assembler generated a short-addressed branch to a function in the
> "same" section but the linker discovered that it was too far away,
> because the target landed in a different section.

another advantage is that for funcs which are defined in arch code,
putting the attributes on the prototype allow all the arches to get
the right markings without worrying about someone copying & pasting
wrongly.
-mike
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Subject: [patch 1/2] parisc: Convert the final irq bits
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To: "James E.J. Bottomley" <jejb@parisc-linux.org>
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1) As promised in the comment, the core does not copy cpumask anymore
   when the arch code returns -EINVAL

2) Get the per cpu information from irq_data

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/irq.c |    9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

Index: linux-2.6-tip/arch/parisc/kernel/irq.c
===================================================================
--- linux-2.6-tip.orig/arch/parisc/kernel/irq.c
+++ linux-2.6-tip/arch/parisc/kernel/irq.c
@@ -113,13 +113,8 @@ int cpu_check_affinity(struct irq_data *
 	int cpu_dest;
 
 	/* timer and ipi have to always be received on all CPUs */
-	if (CHECK_IRQ_PER_CPU(irq_to_desc(d->irq)->status)) {
-		/* Bad linux design decision.  The mask has already
-		 * been set; we must reset it. Will fix - tglx
-		 */
-		cpumask_setall(d->affinity);
+	if (irqd_is_per_cpu(d))
 		return -EINVAL;
-	}
 
 	/* whatever mask they set, we just allow one CPU */
 	cpu_dest = first_cpu(*dest);
@@ -357,7 +352,7 @@ void do_cpu_irq_mask(struct pt_regs *reg
 #ifdef CONFIG_SMP
 	desc = irq_to_desc(irq);
 	cpumask_copy(&dest, desc->irq_data.affinity);
-	if (CHECK_IRQ_PER_CPU(desc->status) &&
+	if (irqd_is_per_cpu(&desc->irq_data) &&
 	    !cpu_isset(smp_processor_id(), dest)) {
 		int cpu = first_cpu(dest);
 


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From: Thomas Gleixner <tglx@linutronix.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [patch 2/2] parisc: Convert irq namespace
Date: Fri, 25 Mar 2011 13:40:16 -0000
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Convert to the new function names. Scripted with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/irq.c |   12 ++++++------
 drivers/parisc/eisa.c    |    2 +-
 drivers/parisc/gsc.c     |    4 ++--
 drivers/parisc/superio.c |    3 ++-
 4 files changed, 11 insertions(+), 10 deletions(-)

Index: linux-2.6-tip/arch/parisc/kernel/irq.c
===================================================================
--- linux-2.6-tip.orig/arch/parisc/kernel/irq.c
+++ linux-2.6-tip/arch/parisc/kernel/irq.c
@@ -235,13 +235,13 @@ int cpu_claim_irq(unsigned int irq, stru
 {
 	if (irq_desc[irq].action)
 		return -EBUSY;
-	if (get_irq_chip(irq) != &cpu_interrupt_type)
+	if (irq_get_chip(irq) != &cpu_interrupt_type)
 		return -EBUSY;
 
 	/* for iosapic interrupts */
 	if (type) {
-		set_irq_chip_and_handler(irq, type, handle_percpu_irq);
-		set_irq_chip_data(irq, data);
+		irq_set_chip_and_handler(irq, type, handle_percpu_irq);
+		irq_set_chip_data(irq, data);
 		__cpu_unmask_irq(irq);
 	}
 	return 0;
@@ -393,14 +393,14 @@ static void claim_cpu_irqs(void)
 {
 	int i;
 	for (i = CPU_IRQ_BASE; i <= CPU_IRQ_MAX; i++) {
-		set_irq_chip_and_handler(i, &cpu_interrupt_type,
+		irq_set_chip_and_handler(i, &cpu_interrupt_type,
 					 handle_percpu_irq);
 	}
 
-	set_irq_handler(TIMER_IRQ, handle_percpu_irq);
+	irq_set_handler(TIMER_IRQ, handle_percpu_irq);
 	setup_irq(TIMER_IRQ, &timer_action);
 #ifdef CONFIG_SMP
-	set_irq_handler(IPI_IRQ, handle_percpu_irq);
+	irq_set_handler(IPI_IRQ, handle_percpu_irq);
 	setup_irq(IPI_IRQ, &ipi_action);
 #endif
 }
Index: linux-2.6-tip/drivers/parisc/eisa.c
===================================================================
--- linux-2.6-tip.orig/drivers/parisc/eisa.c
+++ linux-2.6-tip/drivers/parisc/eisa.c
@@ -340,7 +340,7 @@ static int __init eisa_probe(struct pari
 	/* Reserve IRQ2 */
 	setup_irq(2, &irq2_action);
 	for (i = 0; i < 16; i++) {
-		set_irq_chip_and_handler(i, &eisa_interrupt_type,
+		irq_set_chip_and_handler(i, &eisa_interrupt_type,
 					 handle_simple_irq);
 	}
 	
Index: linux-2.6-tip/drivers/parisc/gsc.c
===================================================================
--- linux-2.6-tip.orig/drivers/parisc/gsc.c
+++ linux-2.6-tip/drivers/parisc/gsc.c
@@ -152,8 +152,8 @@ int gsc_assign_irq(struct irq_chip *type
 	if (irq > GSC_IRQ_MAX)
 		return NO_IRQ;
 
-	set_irq_chip_and_handler(irq, type, handle_simple_irq);
-	set_irq_chip_data(irq, data);
+	irq_set_chip_and_handler(irq, type, handle_simple_irq);
+	irq_set_chip_data(irq, data);
 
 	return irq++;
 }
Index: linux-2.6-tip/drivers/parisc/superio.c
===================================================================
--- linux-2.6-tip.orig/drivers/parisc/superio.c
+++ linux-2.6-tip/drivers/parisc/superio.c
@@ -355,7 +355,8 @@ int superio_fixup_irq(struct pci_dev *pc
 #endif
 
 	for (i = 0; i < 16; i++) {
-		set_irq_chip_and_handler(i, &superio_interrupt_type, handle_simple_irq);
+		irq_set_chip_and_handler(i, &superio_interrupt_type,
+					 handle_simple_irq);
 	}
 
 	/*


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From: Thomas Gleixner <tglx@linutronix.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [patch 0/2] parisc: Final irq bits
Date: Fri, 25 Mar 2011 13:40:14 -0000
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James,

the following two patches cleanup the remaining oddbits and convert
parisc to the new irq function names.

Thanks,

	tglx

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: only make executable areas executable
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Currently parisc has the whole kernel marked as RWX, meaning any
kernel page at all is eligible to be executed.  This can cause a
theoretical problem on systems with combined I/D TLB because the act
of referencing a page causes a TLB insertion with an executable bit.
This TLB entry may be used by the CPU as the basis for speculating the
page into the I-Cache.  If this speculated page is subsequently used
for a user process, there is the possibility we will get a stale
I-cache line picked up as the binary executes.

As a point of good practise, only mark actual kernel text pages as
executable.  The same has to be done for init_text pages, but they're
converted to data pages (and the I-Cache flushed) when the init memory
is released.

James

---

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 5d7b8ce..22dadeb 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -177,7 +177,10 @@ struct vm_area_struct;
 
 #define _PAGE_TABLE	(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE |  _PAGE_DIRTY | _PAGE_ACCESSED)
 #define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
-#define _PAGE_KERNEL	(_PAGE_PRESENT | _PAGE_EXEC | _PAGE_READ | _PAGE_WRITE | _PAGE_DIRTY | _PAGE_ACCESSED)
+#define _PAGE_KERNEL_RO	(_PAGE_PRESENT | _PAGE_READ | _PAGE_DIRTY | _PAGE_ACCESSED)
+#define _PAGE_KERNEL_EXEC	(_PAGE_KERNEL_RO | _PAGE_EXEC)
+#define _PAGE_KERNEL_RWX	(_PAGE_KERNEL_EXEC | _PAGE_WRITE)
+#define _PAGE_KERNEL		(_PAGE_KERNEL_RO | _PAGE_WRITE)
 
 /* The pgd/pmd contains a ptr (in phys addr space); since all pgds/pmds
  * are page-aligned, we don't care about the PAGE_OFFSET bits, except
@@ -208,7 +211,9 @@ struct vm_area_struct;
 #define PAGE_COPY       PAGE_EXECREAD
 #define PAGE_RWX        __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED)
 #define PAGE_KERNEL	__pgprot(_PAGE_KERNEL)
-#define PAGE_KERNEL_RO	__pgprot(_PAGE_KERNEL & ~_PAGE_WRITE)
+#define PAGE_KERNEL_EXEC	__pgprot(_PAGE_KERNEL_EXEC)
+#define PAGE_KERNEL_RWX	__pgprot(_PAGE_KERNEL_RWX)
+#define PAGE_KERNEL_RO	__pgprot(_PAGE_KERNEL_RO)
 #define PAGE_KERNEL_UNC	__pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)
 #define PAGE_GATEWAY    __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_GATEWAY| _PAGE_READ)
 
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index ead8d2a..6f05944 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -692,6 +692,9 @@ ENTRY(fault_vector_11)
 END(fault_vector_11)
 
 #endif
+	/* Fault vector is separately protected and *must* be on its own page */
+	.align		PAGE_SIZE
+ENTRY(end_fault_vector)
 
 	.import		handle_interruption,code
 	.import		do_cpu_irq_mask,code
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index 145c5e4..37aabd7 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -106,8 +106,9 @@ $bss_loop:
 #endif
 
 
-	/* Now initialize the PTEs themselves */
-	ldo		0+_PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
+	/* Now initialize the PTEs themselves.  We use RWX for
+	 * everything ... it will get remapped correctly later */
+	ldo		0+_PAGE_KERNEL_RWX(%r0),%r3 /* Hardwired 0 phys addr start */
 	ldi		(1<<(KERNEL_INITIAL_ORDER-PAGE_SHIFT)),%r11 /* PFN count */
 	load32		PA(pg0),%r1
 
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 6e81bb5..cedbbb8 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -61,8 +61,10 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/bug.h>
+#include <linux/mm.h>
 #include <linux/slab.h>
 
+#include <asm/pgtable.h>
 #include <asm/unwind.h>
 
 #if 0
@@ -214,7 +216,13 @@ void *module_alloc(unsigned long size)
 {
 	if (size == 0)
 		return NULL;
-	return vmalloc(size);
+	/* using RWX means less protection for modules, but it's
+	 * easier than trying to map the text, data, init_text and
+	 * init_data correctly */
+	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
+				    GFP_KERNEL | __GFP_HIGHMEM,
+				    PAGE_KERNEL_RWX, -1,
+				    __builtin_return_address(0));
 }
 
 #ifndef CONFIG_64BIT
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 8f1e4ef..bf6a43a 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -134,6 +134,7 @@ SECTIONS
 	. = ALIGN(16384);
 	__init_begin = .;
 	INIT_TEXT_SECTION(16384)
+	. = ALIGN(PAGE_SIZE);
 	INIT_DATA_SECTION(16)
 	/* we have to discard exit text and such at runtime, not link time */
 	.exit.text :
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index b7ed8d7..c555175 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -369,24 +369,159 @@ static void __init setup_bootmem(void)
 	request_resource(&sysram_resources[0], &pdcdata_resource);
 }
 
+static void __init map_pages(unsigned long start_vaddr,
+			     unsigned long start_paddr, unsigned long size,
+			     pgprot_t pgprot, int force)
+{
+	pgd_t *pg_dir;
+	pmd_t *pmd;
+	pte_t *pg_table;
+	unsigned long end_paddr;
+	unsigned long start_pmd;
+	unsigned long start_pte;
+	unsigned long tmp1;
+	unsigned long tmp2;
+	unsigned long address;
+	unsigned long vaddr;
+	unsigned long ro_start;
+	unsigned long ro_end;
+	unsigned long fv_addr;
+	unsigned long gw_addr;
+	extern const unsigned long fault_vector_20;
+	extern void * const linux_gateway_page;
+
+	ro_start = __pa((unsigned long)_text);
+	ro_end   = __pa((unsigned long)&data_start);
+	fv_addr  = __pa((unsigned long)&fault_vector_20) & PAGE_MASK;
+	gw_addr  = __pa((unsigned long)&linux_gateway_page) & PAGE_MASK;
+
+	end_paddr = start_paddr + size;
+
+	pg_dir = pgd_offset_k(start_vaddr);
+
+#if PTRS_PER_PMD == 1
+	start_pmd = 0;
+#else
+	start_pmd = ((start_vaddr >> PMD_SHIFT) & (PTRS_PER_PMD - 1));
+#endif
+	start_pte = ((start_vaddr >> PAGE_SHIFT) & (PTRS_PER_PTE - 1));
+
+	address = start_paddr;
+	vaddr = start_vaddr;
+	while (address < end_paddr) {
+#if PTRS_PER_PMD == 1
+		pmd = (pmd_t *)__pa(pg_dir);
+#else
+		pmd = (pmd_t *)pgd_address(*pg_dir);
+
+		/*
+		 * pmd is physical at this point
+		 */
+
+		if (!pmd) {
+			pmd = (pmd_t *) alloc_bootmem_low_pages_node(NODE_DATA(0), PAGE_SIZE << PMD_ORDER);
+			pmd = (pmd_t *) __pa(pmd);
+		}
+
+		pgd_populate(NULL, pg_dir, __va(pmd));
+#endif
+		pg_dir++;
+
+		/* now change pmd to kernel virtual addresses */
+
+		pmd = (pmd_t *)__va(pmd) + start_pmd;
+		for (tmp1 = start_pmd; tmp1 < PTRS_PER_PMD; tmp1++, pmd++) {
+
+			/*
+			 * pg_table is physical at this point
+			 */
+
+			pg_table = (pte_t *)pmd_address(*pmd);
+			if (!pg_table) {
+				pg_table = (pte_t *)
+					alloc_bootmem_low_pages_node(NODE_DATA(0), PAGE_SIZE);
+				pg_table = (pte_t *) __pa(pg_table);
+			}
+
+			pmd_populate_kernel(NULL, pmd, __va(pg_table));
+
+			/* now change pg_table to kernel virtual addresses */
+
+			pg_table = (pte_t *) __va(pg_table) + start_pte;
+			for (tmp2 = start_pte; tmp2 < PTRS_PER_PTE; tmp2++, pg_table++) {
+				pte_t pte;
+
+				/*
+				 * Map the fault vector writable so we can
+				 * write the HPMC checksum.
+				 */
+				if (force)
+					pte =  __mk_pte(address, pgprot);
+				else if (core_kernel_text(vaddr) &&
+					 address != fv_addr &&
+					 address != gw_addr)
+					pte = __mk_pte(address, PAGE_KERNEL_EXEC);
+				else
+#if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
+				if (address >= ro_start && address < ro_end
+							&& address != fv_addr
+							&& address != gw_addr)
+					pte = __mk_pte(address, PAGE_KERNEL_RO);
+				else
+#endif
+					pte = __mk_pte(address, pgprot);
+
+				if (address >= end_paddr) {
+					if (force)
+						break;
+					else
+						pte_val(pte) = 0;
+				}
+
+				set_pte(pg_table, pte);
+
+				address += PAGE_SIZE;
+				vaddr += PAGE_SIZE;
+			}
+			start_pte = 0;
+
+			if (address >= end_paddr)
+			    break;
+		}
+		start_pmd = 0;
+	}
+}
+
 void free_initmem(void)
 {
 	unsigned long addr;
 	unsigned long init_begin = (unsigned long)__init_begin;
 	unsigned long init_end = (unsigned long)__init_end;
 
-#ifdef CONFIG_DEBUG_KERNEL
+	/* The init text pages are marked R-X.  We have to
+	 * flush the icache and mark them RW-
+	 *
+	 * This is tricky, because map_pages is in the init section.
+	 * Do a dummy remap of the data section first (the data
+	 * section is already PAGE_KERNEL) to pull in the TLB entries
+	 * for map_kernel */
+	map_pages(init_begin, __pa(init_begin), init_end - init_begin,
+		  PAGE_KERNEL_RWX, 1);
+	/* now remap at PAGE_KERNEL since the TLB is pre-primed to execute
+	 * map_pages */
+	map_pages(init_begin, __pa(init_begin), init_end - init_begin,
+		  PAGE_KERNEL, 1);
+
+	/* force the kernel to see the new TLB entries */
+	__flush_tlb_range(0, init_begin, init_end);
 	/* Attempt to catch anyone trying to execute code here
 	 * by filling the page with BRK insns.
 	 */
 	memset((void *)init_begin, 0x00, init_end - init_begin);
+	/* finally dump all the instructions which were cached, since the
+	 * pages are no-longer executable */
 	flush_icache_range(init_begin, init_end);
-#endif
 	
-	/* align __init_begin and __init_end to page size,
-	   ignoring linker script where we might have tried to save RAM */
-	init_begin = PAGE_ALIGN(init_begin);
-	init_end = PAGE_ALIGN(init_end);
 	for (addr = init_begin; addr < init_end; addr += PAGE_SIZE) {
 		ClearPageReserved(virt_to_page(addr));
 		init_page_count(virt_to_page(addr));
@@ -616,114 +751,6 @@ void show_mem(unsigned int filter)
 #endif
 }
 
-
-static void __init map_pages(unsigned long start_vaddr, unsigned long start_paddr, unsigned long size, pgprot_t pgprot)
-{
-	pgd_t *pg_dir;
-	pmd_t *pmd;
-	pte_t *pg_table;
-	unsigned long end_paddr;
-	unsigned long start_pmd;
-	unsigned long start_pte;
-	unsigned long tmp1;
-	unsigned long tmp2;
-	unsigned long address;
-	unsigned long ro_start;
-	unsigned long ro_end;
-	unsigned long fv_addr;
-	unsigned long gw_addr;
-	extern const unsigned long fault_vector_20;
-	extern void * const linux_gateway_page;
-
-	ro_start = __pa((unsigned long)_text);
-	ro_end   = __pa((unsigned long)&data_start);
-	fv_addr  = __pa((unsigned long)&fault_vector_20) & PAGE_MASK;
-	gw_addr  = __pa((unsigned long)&linux_gateway_page) & PAGE_MASK;
-
-	end_paddr = start_paddr + size;
-
-	pg_dir = pgd_offset_k(start_vaddr);
-
-#if PTRS_PER_PMD == 1
-	start_pmd = 0;
-#else
-	start_pmd = ((start_vaddr >> PMD_SHIFT) & (PTRS_PER_PMD - 1));
-#endif
-	start_pte = ((start_vaddr >> PAGE_SHIFT) & (PTRS_PER_PTE - 1));
-
-	address = start_paddr;
-	while (address < end_paddr) {
-#if PTRS_PER_PMD == 1
-		pmd = (pmd_t *)__pa(pg_dir);
-#else
-		pmd = (pmd_t *)pgd_address(*pg_dir);
-
-		/*
-		 * pmd is physical at this point
-		 */
-
-		if (!pmd) {
-			pmd = (pmd_t *) alloc_bootmem_low_pages_node(NODE_DATA(0),PAGE_SIZE << PMD_ORDER);
-			pmd = (pmd_t *) __pa(pmd);
-		}
-
-		pgd_populate(NULL, pg_dir, __va(pmd));
-#endif
-		pg_dir++;
-
-		/* now change pmd to kernel virtual addresses */
-
-		pmd = (pmd_t *)__va(pmd) + start_pmd;
-		for (tmp1 = start_pmd; tmp1 < PTRS_PER_PMD; tmp1++,pmd++) {
-
-			/*
-			 * pg_table is physical at this point
-			 */
-
-			pg_table = (pte_t *)pmd_address(*pmd);
-			if (!pg_table) {
-				pg_table = (pte_t *)
-					alloc_bootmem_low_pages_node(NODE_DATA(0),PAGE_SIZE);
-				pg_table = (pte_t *) __pa(pg_table);
-			}
-
-			pmd_populate_kernel(NULL, pmd, __va(pg_table));
-
-			/* now change pg_table to kernel virtual addresses */
-
-			pg_table = (pte_t *) __va(pg_table) + start_pte;
-			for (tmp2 = start_pte; tmp2 < PTRS_PER_PTE; tmp2++,pg_table++) {
-				pte_t pte;
-
-				/*
-				 * Map the fault vector writable so we can
-				 * write the HPMC checksum.
-				 */
-#if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
-				if (address >= ro_start && address < ro_end
-							&& address != fv_addr
-							&& address != gw_addr)
-				    pte = __mk_pte(address, PAGE_KERNEL_RO);
-				else
-#endif
-				    pte = __mk_pte(address, pgprot);
-
-				if (address >= end_paddr)
-					pte_val(pte) = 0;
-
-				set_pte(pg_table, pte);
-
-				address += PAGE_SIZE;
-			}
-			start_pte = 0;
-
-			if (address >= end_paddr)
-			    break;
-		}
-		start_pmd = 0;
-	}
-}
-
 /*
  * pagetable_init() sets up the page tables
  *
@@ -748,14 +775,14 @@ static void __init pagetable_init(void)
 		size = pmem_ranges[range].pages << PAGE_SHIFT;
 
 		map_pages((unsigned long)__va(start_paddr), start_paddr,
-			size, PAGE_KERNEL);
+			  size, PAGE_KERNEL, 0);
 	}
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (initrd_end && initrd_end > mem_limit) {
 		printk(KERN_INFO "initrd: mapping %08lx-%08lx\n", initrd_start, initrd_end);
 		map_pages(initrd_start, __pa(initrd_start),
-			initrd_end - initrd_start, PAGE_KERNEL);
+			  initrd_end - initrd_start, PAGE_KERNEL, 0);
 	}
 #endif
 
@@ -780,7 +807,7 @@ static void __init gateway_init(void)
 	 */
 
 	map_pages(linux_gateway_page_addr, __pa(&linux_gateway_page),
-		PAGE_SIZE, PAGE_GATEWAY);
+		  PAGE_SIZE, PAGE_GATEWAY, 1);
 }
 
 #ifdef CONFIG_HPUX


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From - Thu Nov 08 21:06:57 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: only make executable areas executable
Date: Thu, 14 Apr 2011 18:25:21 -0500
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On Thu, 2011-04-14 at 15:53 -0500, James Bottomley wrote:
> Currently parisc has the whole kernel marked as RWX, meaning any
> kernel page at all is eligible to be executed.  This can cause a
> theoretical problem on systems with combined I/D TLB because the act
> of referencing a page causes a TLB insertion with an executable bit.
> This TLB entry may be used by the CPU as the basis for speculating the
> page into the I-Cache.  If this speculated page is subsequently used
> for a user process, there is the possibility we will get a stale
> I-cache line picked up as the binary executes.
> 
> As a point of good practise, only mark actual kernel text pages as
> executable.  The same has to be done for init_text pages, but they're
> converted to data pages (and the I-Cache flushed) when the init memory
> is released.

Just sent this off, then realised (or rather found out why gdb no longer
traces binaries) that special casing the gateway page means that it
isn't executable via the gateway page, so here's the correct patch

James

---

From: James Bottomley <James.Bottomley@HansenPartnership.com>
Subject: [PATCH] parisc: only make executable areas executable

Currently parisc has the whole kernel marked as RWX, meaning any
kernel page at all is eligible to be executed.  This can cause a
theoretical problem on systems with combined I/D TLB because the act
of referencing a page causes a TLB insertion with an executable bit.
This TLB entry may be used by the CPU as the basis for speculating the
page into the I-Cache.  If this speculated page is subsequently used
for a user process, there is the possibility we will get a stale
I-cache line picked up as the binary executes.

As a point of good practice, only mark actual kernel text pages as
executable.  The same has to be done for init_text pages, but they're
converted to data pages (and the I-Cache flushed) when the init memory
is released.

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 5d7b8ce..22dadeb 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -177,7 +177,10 @@ struct vm_area_struct;
 
 #define _PAGE_TABLE	(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE |  _PAGE_DIRTY | _PAGE_ACCESSED)
 #define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
-#define _PAGE_KERNEL	(_PAGE_PRESENT | _PAGE_EXEC | _PAGE_READ | _PAGE_WRITE | _PAGE_DIRTY | _PAGE_ACCESSED)
+#define _PAGE_KERNEL_RO	(_PAGE_PRESENT | _PAGE_READ | _PAGE_DIRTY | _PAGE_ACCESSED)
+#define _PAGE_KERNEL_EXEC	(_PAGE_KERNEL_RO | _PAGE_EXEC)
+#define _PAGE_KERNEL_RWX	(_PAGE_KERNEL_EXEC | _PAGE_WRITE)
+#define _PAGE_KERNEL		(_PAGE_KERNEL_RO | _PAGE_WRITE)
 
 /* The pgd/pmd contains a ptr (in phys addr space); since all pgds/pmds
  * are page-aligned, we don't care about the PAGE_OFFSET bits, except
@@ -208,7 +211,9 @@ struct vm_area_struct;
 #define PAGE_COPY       PAGE_EXECREAD
 #define PAGE_RWX        __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED)
 #define PAGE_KERNEL	__pgprot(_PAGE_KERNEL)
-#define PAGE_KERNEL_RO	__pgprot(_PAGE_KERNEL & ~_PAGE_WRITE)
+#define PAGE_KERNEL_EXEC	__pgprot(_PAGE_KERNEL_EXEC)
+#define PAGE_KERNEL_RWX	__pgprot(_PAGE_KERNEL_RWX)
+#define PAGE_KERNEL_RO	__pgprot(_PAGE_KERNEL_RO)
 #define PAGE_KERNEL_UNC	__pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)
 #define PAGE_GATEWAY    __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_GATEWAY| _PAGE_READ)
 
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index ead8d2a..6f05944 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -692,6 +692,9 @@ ENTRY(fault_vector_11)
 END(fault_vector_11)
 
 #endif
+	/* Fault vector is separately protected and *must* be on its own page */
+	.align		PAGE_SIZE
+ENTRY(end_fault_vector)
 
 	.import		handle_interruption,code
 	.import		do_cpu_irq_mask,code
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index 145c5e4..37aabd7 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -106,8 +106,9 @@ $bss_loop:
 #endif
 
 
-	/* Now initialize the PTEs themselves */
-	ldo		0+_PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
+	/* Now initialize the PTEs themselves.  We use RWX for
+	 * everything ... it will get remapped correctly later */
+	ldo		0+_PAGE_KERNEL_RWX(%r0),%r3 /* Hardwired 0 phys addr start */
 	ldi		(1<<(KERNEL_INITIAL_ORDER-PAGE_SHIFT)),%r11 /* PFN count */
 	load32		PA(pg0),%r1
 
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 6e81bb5..cedbbb8 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -61,8 +61,10 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/bug.h>
+#include <linux/mm.h>
 #include <linux/slab.h>
 
+#include <asm/pgtable.h>
 #include <asm/unwind.h>
 
 #if 0
@@ -214,7 +216,13 @@ void *module_alloc(unsigned long size)
 {
 	if (size == 0)
 		return NULL;
-	return vmalloc(size);
+	/* using RWX means less protection for modules, but it's
+	 * easier than trying to map the text, data, init_text and
+	 * init_data correctly */
+	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
+				    GFP_KERNEL | __GFP_HIGHMEM,
+				    PAGE_KERNEL_RWX, -1,
+				    __builtin_return_address(0));
 }
 
 #ifndef CONFIG_64BIT
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 8f1e4ef..bf6a43a 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -134,6 +134,7 @@ SECTIONS
 	. = ALIGN(16384);
 	__init_begin = .;
 	INIT_TEXT_SECTION(16384)
+	. = ALIGN(PAGE_SIZE);
 	INIT_DATA_SECTION(16)
 	/* we have to discard exit text and such at runtime, not link time */
 	.exit.text :
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index b7ed8d7..7e6b465 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -369,24 +369,158 @@ static void __init setup_bootmem(void)
 	request_resource(&sysram_resources[0], &pdcdata_resource);
 }
 
+static void __init map_pages(unsigned long start_vaddr,
+			     unsigned long start_paddr, unsigned long size,
+			     pgprot_t pgprot, int force)
+{
+	pgd_t *pg_dir;
+	pmd_t *pmd;
+	pte_t *pg_table;
+	unsigned long end_paddr;
+	unsigned long start_pmd;
+	unsigned long start_pte;
+	unsigned long tmp1;
+	unsigned long tmp2;
+	unsigned long address;
+	unsigned long vaddr;
+	unsigned long ro_start;
+	unsigned long ro_end;
+	unsigned long fv_addr;
+	unsigned long gw_addr;
+	extern const unsigned long fault_vector_20;
+	extern void * const linux_gateway_page;
+
+	ro_start = __pa((unsigned long)_text);
+	ro_end   = __pa((unsigned long)&data_start);
+	fv_addr  = __pa((unsigned long)&fault_vector_20) & PAGE_MASK;
+	gw_addr  = __pa((unsigned long)&linux_gateway_page) & PAGE_MASK;
+
+	end_paddr = start_paddr + size;
+
+	pg_dir = pgd_offset_k(start_vaddr);
+
+#if PTRS_PER_PMD == 1
+	start_pmd = 0;
+#else
+	start_pmd = ((start_vaddr >> PMD_SHIFT) & (PTRS_PER_PMD - 1));
+#endif
+	start_pte = ((start_vaddr >> PAGE_SHIFT) & (PTRS_PER_PTE - 1));
+
+	address = start_paddr;
+	vaddr = start_vaddr;
+	while (address < end_paddr) {
+#if PTRS_PER_PMD == 1
+		pmd = (pmd_t *)__pa(pg_dir);
+#else
+		pmd = (pmd_t *)pgd_address(*pg_dir);
+
+		/*
+		 * pmd is physical at this point
+		 */
+
+		if (!pmd) {
+			pmd = (pmd_t *) alloc_bootmem_low_pages_node(NODE_DATA(0), PAGE_SIZE << PMD_ORDER);
+			pmd = (pmd_t *) __pa(pmd);
+		}
+
+		pgd_populate(NULL, pg_dir, __va(pmd));
+#endif
+		pg_dir++;
+
+		/* now change pmd to kernel virtual addresses */
+
+		pmd = (pmd_t *)__va(pmd) + start_pmd;
+		for (tmp1 = start_pmd; tmp1 < PTRS_PER_PMD; tmp1++, pmd++) {
+
+			/*
+			 * pg_table is physical at this point
+			 */
+
+			pg_table = (pte_t *)pmd_address(*pmd);
+			if (!pg_table) {
+				pg_table = (pte_t *)
+					alloc_bootmem_low_pages_node(NODE_DATA(0), PAGE_SIZE);
+				pg_table = (pte_t *) __pa(pg_table);
+			}
+
+			pmd_populate_kernel(NULL, pmd, __va(pg_table));
+
+			/* now change pg_table to kernel virtual addresses */
+
+			pg_table = (pte_t *) __va(pg_table) + start_pte;
+			for (tmp2 = start_pte; tmp2 < PTRS_PER_PTE; tmp2++, pg_table++) {
+				pte_t pte;
+
+				/*
+				 * Map the fault vector writable so we can
+				 * write the HPMC checksum.
+				 */
+				if (force)
+					pte =  __mk_pte(address, pgprot);
+				else if (core_kernel_text(vaddr) &&
+					 address != fv_addr)
+					pte = __mk_pte(address, PAGE_KERNEL_EXEC);
+				else
+#if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
+				if (address >= ro_start && address < ro_end
+							&& address != fv_addr
+							&& address != gw_addr)
+					pte = __mk_pte(address, PAGE_KERNEL_RO);
+				else
+#endif
+					pte = __mk_pte(address, pgprot);
+
+				if (address >= end_paddr) {
+					if (force)
+						break;
+					else
+						pte_val(pte) = 0;
+				}
+
+				set_pte(pg_table, pte);
+
+				address += PAGE_SIZE;
+				vaddr += PAGE_SIZE;
+			}
+			start_pte = 0;
+
+			if (address >= end_paddr)
+			    break;
+		}
+		start_pmd = 0;
+	}
+}
+
 void free_initmem(void)
 {
 	unsigned long addr;
 	unsigned long init_begin = (unsigned long)__init_begin;
 	unsigned long init_end = (unsigned long)__init_end;
 
-#ifdef CONFIG_DEBUG_KERNEL
+	/* The init text pages are marked R-X.  We have to
+	 * flush the icache and mark them RW-
+	 *
+	 * This is tricky, because map_pages is in the init section.
+	 * Do a dummy remap of the data section first (the data
+	 * section is already PAGE_KERNEL) to pull in the TLB entries
+	 * for map_kernel */
+	map_pages(init_begin, __pa(init_begin), init_end - init_begin,
+		  PAGE_KERNEL_RWX, 1);
+	/* now remap at PAGE_KERNEL since the TLB is pre-primed to execute
+	 * map_pages */
+	map_pages(init_begin, __pa(init_begin), init_end - init_begin,
+		  PAGE_KERNEL, 1);
+
+	/* force the kernel to see the new TLB entries */
+	__flush_tlb_range(0, init_begin, init_end);
 	/* Attempt to catch anyone trying to execute code here
 	 * by filling the page with BRK insns.
 	 */
 	memset((void *)init_begin, 0x00, init_end - init_begin);
+	/* finally dump all the instructions which were cached, since the
+	 * pages are no-longer executable */
 	flush_icache_range(init_begin, init_end);
-#endif
 	
-	/* align __init_begin and __init_end to page size,
-	   ignoring linker script where we might have tried to save RAM */
-	init_begin = PAGE_ALIGN(init_begin);
-	init_end = PAGE_ALIGN(init_end);
 	for (addr = init_begin; addr < init_end; addr += PAGE_SIZE) {
 		ClearPageReserved(virt_to_page(addr));
 		init_page_count(virt_to_page(addr));
@@ -616,114 +750,6 @@ void show_mem(unsigned int filter)
 #endif
 }
 
-
-static void __init map_pages(unsigned long start_vaddr, unsigned long start_paddr, unsigned long size, pgprot_t pgprot)
-{
-	pgd_t *pg_dir;
-	pmd_t *pmd;
-	pte_t *pg_table;
-	unsigned long end_paddr;
-	unsigned long start_pmd;
-	unsigned long start_pte;
-	unsigned long tmp1;
-	unsigned long tmp2;
-	unsigned long address;
-	unsigned long ro_start;
-	unsigned long ro_end;
-	unsigned long fv_addr;
-	unsigned long gw_addr;
-	extern const unsigned long fault_vector_20;
-	extern void * const linux_gateway_page;
-
-	ro_start = __pa((unsigned long)_text);
-	ro_end   = __pa((unsigned long)&data_start);
-	fv_addr  = __pa((unsigned long)&fault_vector_20) & PAGE_MASK;
-	gw_addr  = __pa((unsigned long)&linux_gateway_page) & PAGE_MASK;
-
-	end_paddr = start_paddr + size;
-
-	pg_dir = pgd_offset_k(start_vaddr);
-
-#if PTRS_PER_PMD == 1
-	start_pmd = 0;
-#else
-	start_pmd = ((start_vaddr >> PMD_SHIFT) & (PTRS_PER_PMD - 1));
-#endif
-	start_pte = ((start_vaddr >> PAGE_SHIFT) & (PTRS_PER_PTE - 1));
-
-	address = start_paddr;
-	while (address < end_paddr) {
-#if PTRS_PER_PMD == 1
-		pmd = (pmd_t *)__pa(pg_dir);
-#else
-		pmd = (pmd_t *)pgd_address(*pg_dir);
-
-		/*
-		 * pmd is physical at this point
-		 */
-
-		if (!pmd) {
-			pmd = (pmd_t *) alloc_bootmem_low_pages_node(NODE_DATA(0),PAGE_SIZE << PMD_ORDER);
-			pmd = (pmd_t *) __pa(pmd);
-		}
-
-		pgd_populate(NULL, pg_dir, __va(pmd));
-#endif
-		pg_dir++;
-
-		/* now change pmd to kernel virtual addresses */
-
-		pmd = (pmd_t *)__va(pmd) + start_pmd;
-		for (tmp1 = start_pmd; tmp1 < PTRS_PER_PMD; tmp1++,pmd++) {
-
-			/*
-			 * pg_table is physical at this point
-			 */
-
-			pg_table = (pte_t *)pmd_address(*pmd);
-			if (!pg_table) {
-				pg_table = (pte_t *)
-					alloc_bootmem_low_pages_node(NODE_DATA(0),PAGE_SIZE);
-				pg_table = (pte_t *) __pa(pg_table);
-			}
-
-			pmd_populate_kernel(NULL, pmd, __va(pg_table));
-
-			/* now change pg_table to kernel virtual addresses */
-
-			pg_table = (pte_t *) __va(pg_table) + start_pte;
-			for (tmp2 = start_pte; tmp2 < PTRS_PER_PTE; tmp2++,pg_table++) {
-				pte_t pte;
-
-				/*
-				 * Map the fault vector writable so we can
-				 * write the HPMC checksum.
-				 */
-#if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
-				if (address >= ro_start && address < ro_end
-							&& address != fv_addr
-							&& address != gw_addr)
-				    pte = __mk_pte(address, PAGE_KERNEL_RO);
-				else
-#endif
-				    pte = __mk_pte(address, pgprot);
-
-				if (address >= end_paddr)
-					pte_val(pte) = 0;
-
-				set_pte(pg_table, pte);
-
-				address += PAGE_SIZE;
-			}
-			start_pte = 0;
-
-			if (address >= end_paddr)
-			    break;
-		}
-		start_pmd = 0;
-	}
-}
-
 /*
  * pagetable_init() sets up the page tables
  *
@@ -748,14 +774,14 @@ static void __init pagetable_init(void)
 		size = pmem_ranges[range].pages << PAGE_SHIFT;
 
 		map_pages((unsigned long)__va(start_paddr), start_paddr,
-			size, PAGE_KERNEL);
+			  size, PAGE_KERNEL, 0);
 	}
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (initrd_end && initrd_end > mem_limit) {
 		printk(KERN_INFO "initrd: mapping %08lx-%08lx\n", initrd_start, initrd_end);
 		map_pages(initrd_start, __pa(initrd_start),
-			initrd_end - initrd_start, PAGE_KERNEL);
+			  initrd_end - initrd_start, PAGE_KERNEL, 0);
 	}
 #endif
 
@@ -780,7 +806,7 @@ static void __init gateway_init(void)
 	 */
 
 	map_pages(linux_gateway_page_addr, __pa(&linux_gateway_page),
-		PAGE_SIZE, PAGE_GATEWAY);
+		  PAGE_SIZE, PAGE_GATEWAY, 1);
 }
 
 #ifdef CONFIG_HPUX


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Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 arch/parisc/include/asm/unistd.h   |    4 +++-
 arch/parisc/kernel/sys_parisc32.c  |    8 ++++++++
 arch/parisc/kernel/syscall_table.S |    2 ++
 3 files changed, 13 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 3eb82c2..09f62a6 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -814,8 +814,10 @@
 #define __NR_recvmmsg		(__NR_Linux + 319)
 #define __NR_accept4		(__NR_Linux + 320)
 #define __NR_prlimit64		(__NR_Linux + 321)
+#define __NR_fanotify_init	(__NR_Linux + 322)
+#define __NR_fanotify_mark	(__NR_Linux + 323)
 
-#define __NR_Linux_syscalls	(__NR_prlimit64 + 1)
+#define __NR_Linux_syscalls	(__NR_fanotify_mark + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 88a0ad1..dc9a624 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -228,3 +228,11 @@ asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
         return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
                              ((loff_t)lenhi << 32) | lenlo);
 }
+
+asmlinkage long compat_sys_fanotify_mark(int fan_fd, int flags, u32 mask_hi,
+					 u32 mask_lo, int fd,
+					 const char __user *pathname)
+{
+	return sys_fanotify_mark(fan_fd, flags, ((u64)mask_hi << 32) | mask_lo,
+				 fd, pathname);
+}
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 4be85ee..c5b01e8 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -420,6 +420,8 @@
 	ENTRY_COMP(recvmmsg)
 	ENTRY_SAME(accept4)		/* 320 */
 	ENTRY_SAME(prlimit64)
+	ENTRY_SAME(fanotify_init)
+	ENTRY_COMP(fanotify_mark)
 
 	/* Nothing yet */
 
-- 
1.7.2.3

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Subject: [PATCH 0/4] Add all the missing syscalls
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I've been neglecting our growing pile of missing syscalls, so this
wires up all those that have been added recently.  The only slightly
different one is fanotify_mark, which has a u64 argument which
currently requires an architecture specific compat call.

James Bottomley (4):
  parisc: wire up fanotify syscalls
  parisc: wire up clock_adjtime syscall
  parisc: wire up the fhandle syscalls
  parisc: wire up syncfs syscall

 arch/parisc/include/asm/unistd.h   |    8 +++++++-
 arch/parisc/kernel/sys_parisc32.c  |    8 ++++++++
 arch/parisc/kernel/syscall_table.S |    6 ++++++
 3 files changed, 21 insertions(+), 1 deletions(-)

-- 
1.7.2.3

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Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 arch/parisc/include/asm/unistd.h   |    4 +++-
 arch/parisc/kernel/syscall_table.S |    2 ++
 2 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 9af5fab..4266e44 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -817,8 +817,10 @@
 #define __NR_fanotify_init	(__NR_Linux + 322)
 #define __NR_fanotify_mark	(__NR_Linux + 323)
 #define __NR_clock_adjtime	(__NR_Linux + 324)
+#define __NR_name_to_handle_at	(__NR_Linux + 325)
+#define __NR_open_by_handle_at	(__NR_Linux + 326)
 
-#define __NR_Linux_syscalls	(__NR_clock_adjtime + 1)
+#define __NR_Linux_syscalls	(__NR_open_by_handle_at + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 473bf41..b5d2982 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -423,6 +423,8 @@
 	ENTRY_SAME(fanotify_init)
 	ENTRY_COMP(fanotify_mark)
 	ENTRY_COMP(clock_adjtime)
+	ENTRY_SAME(name_to_handle_at)	/* 325 */
+	ENTRY_COMP(open_by_handle_at)
 
 	/* Nothing yet */
 
-- 
1.7.2.3

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From - Thu Nov 08 21:06:58 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 2/4] parisc: wire up clock_adjtime syscall
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Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 arch/parisc/include/asm/unistd.h   |    3 ++-
 arch/parisc/kernel/syscall_table.S |    1 +
 2 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 09f62a6..9af5fab 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -816,8 +816,9 @@
 #define __NR_prlimit64		(__NR_Linux + 321)
 #define __NR_fanotify_init	(__NR_Linux + 322)
 #define __NR_fanotify_mark	(__NR_Linux + 323)
+#define __NR_clock_adjtime	(__NR_Linux + 324)
 
-#define __NR_Linux_syscalls	(__NR_fanotify_mark + 1)
+#define __NR_Linux_syscalls	(__NR_clock_adjtime + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index c5b01e8..473bf41 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -422,6 +422,7 @@
 	ENTRY_SAME(prlimit64)
 	ENTRY_SAME(fanotify_init)
 	ENTRY_COMP(fanotify_mark)
+	ENTRY_COMP(clock_adjtime)
 
 	/* Nothing yet */
 
-- 
1.7.2.3

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Subject: [PATCH 4/4] parisc: wire up syncfs syscall
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Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 arch/parisc/include/asm/unistd.h   |    3 ++-
 arch/parisc/kernel/syscall_table.S |    1 +
 2 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 4266e44..9cbc2c3 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -819,8 +819,9 @@
 #define __NR_clock_adjtime	(__NR_Linux + 324)
 #define __NR_name_to_handle_at	(__NR_Linux + 325)
 #define __NR_open_by_handle_at	(__NR_Linux + 326)
+#define __NR_syncfs		(__NR_Linux + 327)
 
-#define __NR_Linux_syscalls	(__NR_open_by_handle_at + 1)
+#define __NR_Linux_syscalls	(__NR_syncfs + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index b5d2982..a5b02ce 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -425,6 +425,7 @@
 	ENTRY_COMP(clock_adjtime)
 	ENTRY_SAME(name_to_handle_at)	/* 325 */
 	ENTRY_COMP(open_by_handle_at)
+	ENTRY_SAME(syncfs)
 
 	/* Nothing yet */
 
-- 
1.7.2.3

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From - Thu Nov 08 21:06:58 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: [PATCH] prevent speculative re-read on cache flush
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According to Appendix F, the TLB is the primary arbiter of speculation.
Thus, if a page has a TLB entry, it may be speculatively read into the
cache.  On linux, this can cause us incoherencies because if we're about
to do a disk read, we call get_user_pages() to do the flush/invalidate
in user space, but we still potentially have the user TLB entries, and
the cache could speculate the lines back into userspace (thus causing
stale data to be used).  This is fixed by purging the TLB entries before
we flush through the tmpalias space.  Now, the only way the line could
be re-speculated is if the user actually tries to touch it (which is not
allowed).

James

---

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index d18328b..da601dd 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -3,6 +3,7 @@
 
 #include <linux/mm.h>
 #include <linux/uaccess.h>
+#include <asm/tlbflush.h>
 
 /* The usual comment is "Caches aren't brain-dead on the <architecture>".
  * Unfortunately, that doesn't apply to PA-RISC. */
@@ -112,8 +113,10 @@ void flush_dcache_page_asm(unsigned long phys_addr, unsigned long vaddr);
 static inline void
 flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr)
 {
-	if (PageAnon(page))
+	if (PageAnon(page)) {
+		flush_tlb_page(vma, vmaddr);
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
+	}
 }
 
 #ifdef CONFIG_DEBUG_RODATA
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 3f11331..83335f3 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -304,10 +304,20 @@ void flush_dcache_page(struct page *page)
 		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
 		addr = mpnt->vm_start + offset;
 
+		/* The TLB is the engine of coherence on parisc: The
+		 * CPU is entitled to speculate any page with a TLB
+		 * mapping, so here we kill the mapping then flush the
+		 * page along a special flush only alias mapping.
+		 * This guarantees that the page is no-longer in the
+		 * cache for any process and nor may it be
+		 * speculatively read in (until the user or kernel
+		 * specifically accesses it, of course) */
+
+		flush_tlb_page(mpnt, addr);
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
 			if (old_addr)
-				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
+				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
 			old_addr = addr;
 		}
 	}
@@ -499,6 +509,7 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 {
 	BUG_ON(!vma->vm_mm->context);
 
+	flush_tlb_page(vma, vmaddr);
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }


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From - Thu Nov 08 21:06:58 2018
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Subject: Notes about the latest cache patches
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The one that seems to make the most difference to me is not having the
kernel memory cache pages be marked executable.  This cures an
intermittent segfault I was seeing with git on the pa8800.

Also note that if you apply only the speculative read prevention patch,
you'll find the incidences of segfaults and cache nasties get worse (at
least they do on ion) mainly because the aggressive TLB purging leaves
the cache hardware with fewer lines to speculate, so it tends to be more
aggressive about speculating them ... leading to more incidences.

I find that the combination of the two patches cures all the segfaults
I've been seeing in normal compiles and git operations.

James


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From - Thu Nov 08 21:06:58 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Debian bug 622997
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I posted this debian bug report because the most recent debian
SMP kernel build fails to boot on my rp3440:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=622997

I don't think debian kernels have worked since lenny.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, 2011-04-16 at 14:07 -0400, John David Anglin wrote:
> I posted this debian bug report because the most recent debian
> SMP kernel build fails to boot on my rp3440:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=622997
> 
> I don't think debian kernels have worked since lenny.

Hmm, well upstream ones have: so it's likely a patch debian has but
upstream doesn't, or it could be a toolchain issue ... I didn't think
gcc-4.4.5 worked properly on 64 bit without a few patches?

James


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On Sat, 2011-04-16 at 13:57 -0500, James Bottomley wrote:
> On Sat, 2011-04-16 at 14:07 -0400, John David Anglin wrote:
> > I posted this debian bug report because the most recent debian
> > SMP kernel build fails to boot on my rp3440:
> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D622997
> >=20
> > I don't think debian kernels have worked since lenny.
>=20
> Hmm, well upstream ones have: so it's likely a patch debian has but
> upstream doesn't, or it could be a toolchain issue ... I didn't think
> gcc-4.4.5 worked properly on 64 bit without a few patches?

We have a tiny number of patches on top of 2.6.38.2.

If you can identify the compiler patches required, I can ask the Debian
gcc maintainers to apply them.

Ben.

--=20
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.

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From - Thu Nov 08 21:06:58 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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> On Sat, 2011-04-16 at 14:07 -0400, John David Anglin wrote:
> > I posted this debian bug report because the most recent debian
> > SMP kernel build fails to boot on my rp3440:
> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=622997
> > 
> > I don't think debian kernels have worked since lenny.
> 
> Hmm, well upstream ones have: so it's likely a patch debian has but
> upstream doesn't, or it could be a toolchain issue ... I didn't think
> gcc-4.4.5 worked properly on 64 bit without a few patches?

Yes, but debian tends to build almost everything.  For some reason,
I've turned off ipv6.  Unlike many kernel bugs, this one is completely
reproducible.

I would say gcc-4.4.6 or a snapshot latter than 2010-12-22 is needed
for kernel builds.  asm in delay slot patch is key patch.  As this was
discussed on list, I'm a bit surprised that this wasn't picked up if
that's the problem.

I'm doing a build based on debian's config with my toolchain to see
if it has the same problem.

There may be a toolchain issue wrt CONFIG_FRAME_POINTER (frame pointer
optimization).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, 2011-04-16 at 15:29 -0400, John David Anglin wrote:
> > On Sat, 2011-04-16 at 14:07 -0400, John David Anglin wrote:
> > > I posted this debian bug report because the most recent debian
> > > SMP kernel build fails to boot on my rp3440:
> > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=622997
> > > 
> > > I don't think debian kernels have worked since lenny.
> > 
> > Hmm, well upstream ones have: so it's likely a patch debian has but
> > upstream doesn't, or it could be a toolchain issue ... I didn't think
> > gcc-4.4.5 worked properly on 64 bit without a few patches?
> 
> Yes, but debian tends to build almost everything.  For some reason,
> I've turned off ipv6.  Unlike many kernel bugs, this one is completely
> reproducible.

I suppose it could be USB ... before I got ion, I didn't have any parisc
systems with USB, so it's turned off in my build.  I'll turn it on and
see if there's a problem there.

James


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On Sat, 2011-04-16 at 15:48 -0500, James Bottomley wrote:
> On Sat, 2011-04-16 at 15:29 -0400, John David Anglin wrote:
> > > On Sat, 2011-04-16 at 14:07 -0400, John David Anglin wrote:
> > > > I posted this debian bug report because the most recent debian
> > > > SMP kernel build fails to boot on my rp3440:
> > > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=622997
> > > > 
> > > > I don't think debian kernels have worked since lenny.
> > > 
> > > Hmm, well upstream ones have: so it's likely a patch debian has but
> > > upstream doesn't, or it could be a toolchain issue ... I didn't think
> > > gcc-4.4.5 worked properly on 64 bit without a few patches?
> > 
> > Yes, but debian tends to build almost everything.  For some reason,
> > I've turned off ipv6.  Unlike many kernel bugs, this one is completely
> > reproducible.
> 
> I suppose it could be USB ... before I got ion, I didn't have any parisc
> systems with USB, so it's turned off in my build.  I'll turn it on and
> see if there's a problem there.

Strike that one ... I enabled USB in my 2.6.39-rc3 build and it inserts
the OHCI module and discovers the ports just fine.

James


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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Sat, 16 Apr 2011, James Bottomley wrote:

> Strike that one ... I enabled USB in my 2.6.39-rc3 build and it inserts
> the OHCI module and discovers the ports just fine.

Boot 2.6.39-rc3 fails for me with attached config.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--bp/iNruPH9dso1Pn
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="config-2.6.39-rc3+"

#
# Automatically generated make config: don't edit
# Linux/parisc 2.6.39-rc3 Kernel Configuration
# Sat Apr 16 12:33:11 2011
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_FIND_BIT_LE=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_LOW_RES=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y
CONFIG_HAVE_IRQ_WORK=y
CONFIG_IRQ_WORK=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
# CONFIG_FHANDLE is not set
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_AUDIT=y
CONFIG_HAVE_GENERIC_HARDIRQS=y

#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_PREEMPT_RCU is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=32
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=17
CONFIG_CGROUPS=y
# CONFIG_CGROUP_DEBUG is not set
CONFIG_CGROUP_NS=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_CPUACCT=y
# CONFIG_RESOURCE_COUNTERS is not set
# CONFIG_CGROUP_PERF is not set
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_RT_GROUP_SCHED is not set
CONFIG_BLK_CGROUP=y
# CONFIG_DEBUG_BLK_CGROUP is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_SCHED_AUTOGROUP=y
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EXPERT is not set
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_PERF_COUNTERS is not set
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
CONFIG_PROFILING=y
# CONFIG_OPROFILE is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_USE_GENERIC_SMP_HELPERS=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_INTEGRITY=y
# CONFIG_BLK_DEV_THROTTLING is not set
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_CFQ_GROUP_IOSCHED=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_PADATA=y
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
CONFIG_INLINE_SPIN_UNLOCK=y
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
CONFIG_INLINE_READ_UNLOCK=y
# CONFIG_INLINE_READ_UNLOCK_BH is not set
CONFIG_INLINE_READ_UNLOCK_IRQ=y
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
CONFIG_INLINE_WRITE_UNLOCK=y
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_FREEZER=y

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_COMPAT=y
CONFIG_NR_CPUS=8

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
CONFIG_ISA=y
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCI_DEBUG is not set
CONFIG_PCI_STUB=m
CONFIG_PCI_IOV=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
CONFIG_PCCARD=m
CONFIG_PCMCIA=m
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_CARDBUS=y

#
# PC-card bridges
#
CONFIG_YENTA=m
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
CONFIG_PD6729=m
CONFIG_I82092=m
CONFIG_I82365=m
# CONFIG_TCIC is not set
CONFIG_PCCARD_NONSTATIC=y
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=m
CONFIG_NET=y
CONFIG_COMPAT_NETLINK_MESSAGES=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
CONFIG_NET_KEY_MIGRATE=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_ROUTE_CLASSID=y
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE_DEMUX=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=m
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=m
CONFIG_IPV6_PRIVACY=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
# CONFIG_NETLABEL is not set
CONFIG_NETWORK_SECMARK=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_ZONES=y
CONFIG_NF_CONNTRACK_EVENTS=y
# CONFIG_NF_CONNTRACK_TIMESTAMP is not set
CONFIG_NF_CT_PROTO_DCCP=m
CONFIG_NF_CT_PROTO_GRE=m
CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_BROADCAST=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_SNMP=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NETFILTER_TPROXY=m
CONFIG_NETFILTER_XTABLES=m

#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m
CONFIG_NETFILTER_XT_CONNMARK=m
CONFIG_NETFILTER_XT_SET=m

#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_AUDIT=m
CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_CT=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
CONFIG_NETFILTER_XT_TARGET_LED=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_TEE=m
CONFIG_NETFILTER_XT_TARGET_TPROXY=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m

#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_CPU=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_HL=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_IPVS=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_IP_SET=m
CONFIG_IP_SET_MAX=256
CONFIG_IP_SET_BITMAP_IP=m
CONFIG_IP_SET_BITMAP_IPMAC=m
CONFIG_IP_SET_BITMAP_PORT=m
CONFIG_IP_SET_HASH_IP=m
CONFIG_IP_SET_HASH_IPPORT=m
CONFIG_IP_SET_HASH_IPPORTIP=m
CONFIG_IP_SET_HASH_IPPORTNET=m
CONFIG_IP_SET_HASH_NET=m
CONFIG_IP_SET_HASH_NETPORT=m
CONFIG_IP_SET_LIST_SET=m
CONFIG_IP_VS=m
CONFIG_IP_VS_IPV6=y
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12

#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_PROTO_SCTP=y

#
# IPVS scheduler
#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m

#
# IPVS application helper
#
CONFIG_IP_VS_FTP=m
CONFIG_IP_VS_NFCT=y
CONFIG_IP_VS_PE_SIP=m

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_NF_NAT_SNMP_BASIC=m
CONFIG_NF_NAT_PROTO_DCCP=m
CONFIG_NF_NAT_PROTO_GRE=m
CONFIG_NF_NAT_PROTO_UDPLITE=m
CONFIG_NF_NAT_PROTO_SCTP=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_PPTP=m
CONFIG_NF_NAT_H323=m
CONFIG_NF_NAT_SIP=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_SECURITY=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m

#
# IPv6: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV6=m
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_RAW=m
CONFIG_IP6_NF_SECURITY=m
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_IP6=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_ULOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
CONFIG_IP_DCCP=m
CONFIG_INET_DCCP_DIAG=m

#
# DCCP CCIDs Configuration (EXPERIMENTAL)
#
# CONFIG_IP_DCCP_CCID2_DEBUG is not set
CONFIG_IP_DCCP_CCID3=y
# CONFIG_IP_DCCP_CCID3_DEBUG is not set
CONFIG_IP_DCCP_TFRC_LIB=y

#
# DCCP Kernel Hacking
#
# CONFIG_IP_DCCP_DEBUG is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_MSG is not set
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_HMAC_NONE is not set
# CONFIG_SCTP_HMAC_SHA1 is not set
CONFIG_SCTP_HMAC_MD5=y
CONFIG_RDS=m
CONFIG_RDS_RDMA=m
CONFIG_RDS_TCP=m
# CONFIG_RDS_DEBUG is not set
CONFIG_TIPC=m
CONFIG_TIPC_ADVANCED=y
CONFIG_TIPC_PORTS=8191
CONFIG_TIPC_LOG=0
# CONFIG_TIPC_DEBUG is not set
# CONFIG_ATM is not set
CONFIG_L2TP=m
CONFIG_L2TP_DEBUGFS=m
CONFIG_L2TP_V3=y
CONFIG_L2TP_IP=m
CONFIG_L2TP_ETH=m
CONFIG_STP=m
CONFIG_GARP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
CONFIG_PHONET=m
CONFIG_IEEE802154=m
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
CONFIG_NET_SCH_RED=m
# CONFIG_NET_SCH_SFB is not set
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_DRR=m
CONFIG_NET_SCH_MQPRIO=m
CONFIG_NET_SCH_CHOKE=m
CONFIG_NET_SCH_INGRESS=m

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=y
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_IPT=m
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_ACT_CSUM=m
CONFIG_NET_CLS_IND=y
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=y
# CONFIG_BATMAN_ADV is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y

#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_HAMRADIO is not set
CONFIG_CAN=m
CONFIG_CAN_RAW=m
CONFIG_CAN_BCM=m

#
# CAN Device Drivers
#
CONFIG_CAN_VCAN=m
CONFIG_CAN_SLCAN=m
CONFIG_CAN_DEV=m
CONFIG_CAN_CALC_BITTIMING=y
CONFIG_CAN_MCP251X=m
# CONFIG_PCH_CAN is not set
CONFIG_CAN_SJA1000=m
CONFIG_CAN_SJA1000_ISA=m
# CONFIG_CAN_SJA1000_PLATFORM is not set
CONFIG_CAN_EMS_PCI=m
CONFIG_CAN_KVASER_PCI=m
CONFIG_CAN_PLX_PCI=m
CONFIG_CAN_TSCAN1=m
# CONFIG_CAN_C_CAN is not set

#
# CAN USB interfaces
#
CONFIG_CAN_EMS_USB=m
CONFIG_CAN_ESD_USB2=m
# CONFIG_CAN_SOFTING is not set
# CONFIG_CAN_DEBUG_DEVICES is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
CONFIG_AF_RXRPC=m
# CONFIG_AF_RXRPC_DEBUG is not set
CONFIG_RXKAD=m
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_WIRELESS_EXT=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_WEXT_SPY=y
CONFIG_WEXT_PRIV=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_REG_DEBUG is not set
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
# CONFIG_CFG80211_INTERNAL_REGDB is not set
CONFIG_CFG80211_WEXT=y
# CONFIG_WIRELESS_EXT_SYSFS is not set
CONFIG_LIB80211=m
CONFIG_LIB80211_CRYPT_WEP=m
CONFIG_LIB80211_CRYPT_CCMP=m
CONFIG_LIB80211_CRYPT_TKIP=m
# CONFIG_LIB80211_DEBUG is not set
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_MINSTREL_HT=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_WIMAX=m
CONFIG_WIMAX_DEBUG_LEVEL=8
CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
CONFIG_NET_9P=m
CONFIG_NET_9P_RDMA=m
# CONFIG_NET_9P_DEBUG is not set
# CONFIG_CAIF is not set
CONFIG_CEPH_LIB=m
# CONFIG_CEPH_LIB_PRETTYDEBUG is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
# CONFIG_DEVTMPFS_MOUNT is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=m
# CONFIG_MTD is not set
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_SERIAL=m
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_PC_PCMCIA=m
CONFIG_PARPORT_GSC=m
CONFIG_PARPORT_AX88796=m
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
# CONFIG_PNP is not set
CONFIG_BLK_DEV=y
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
CONFIG_BLK_DEV_DRBD=m
# CONFIG_DRBD_FAULT_INJECTION is not set
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_OSD=m
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=m
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=8192
# CONFIG_BLK_DEV_XIP is not set
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
CONFIG_ATA_OVER_ETH=m
# CONFIG_BLK_DEV_HD is not set
CONFIG_BLK_DEV_RBD=m
CONFIG_SENSORS_LIS3LV02D=m
CONFIG_MISC_DEVICES=y
CONFIG_AD525X_DPOT=m
CONFIG_AD525X_DPOT_I2C=m
CONFIG_AD525X_DPOT_SPI=m
# CONFIG_PHANTOM is not set
CONFIG_SGI_IOC4=m
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
CONFIG_ICS932S401=m
CONFIG_ENCLOSURE_SERVICES=m
# CONFIG_HP_ILO is not set
CONFIG_APDS9802ALS=m
CONFIG_ISL29003=m
CONFIG_ISL29020=m
CONFIG_SENSORS_TSL2550=m
CONFIG_SENSORS_BH1780=m
CONFIG_SENSORS_BH1770=m
CONFIG_SENSORS_APDS990X=m
CONFIG_HMC6352=m
CONFIG_DS1682=m
CONFIG_TI_DAC7512=m
CONFIG_BMP085=m
# CONFIG_PCH_PHUB is not set
CONFIG_C2PORT=m

#
# EEPROM support
#
CONFIG_EEPROM_AT24=m
CONFIG_EEPROM_AT25=m
CONFIG_EEPROM_LEGACY=m
CONFIG_EEPROM_MAX6875=m
CONFIG_EEPROM_93CX6=m
CONFIG_CB710_CORE=m
# CONFIG_CB710_DEBUG is not set
CONFIG_CB710_DEBUG_ASSUMPTIONS=y

#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# CONFIG_SENSORS_LIS3_SPI is not set
CONFIG_SENSORS_LIS3_I2C=m
CONFIG_HAVE_IDE=y
CONFIG_IDE=m

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_IDE_GD=m
CONFIG_IDE_GD_ATA=y
CONFIG_IDE_GD_ATAPI=y
# CONFIG_BLK_DEV_IDECS is not set
CONFIG_BLK_DEV_DELKIN=m
CONFIG_BLK_DEV_IDECD=m
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_BLK_DEV_OFFBOARD is not set
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
CONFIG_BLK_DEV_IT8172=m
CONFIG_BLK_DEV_IT8213=m
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=m
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
CONFIG_BLK_DEV_TC86C001=m
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
CONFIG_SCSI_MOD=m
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=m
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=m
CONFIG_SCSI_NETLINK=y
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_FC_TGT_ATTRS=y
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_SAS_HOST_SMP=y
CONFIG_SCSI_SRP_ATTRS=m
CONFIG_SCSI_SRP_TGT_ATTRS=y
CONFIG_SCSI_LOWLEVEL=y
CONFIG_ISCSI_TCP=m
CONFIG_ISCSI_BOOT_SYSFS=m
CONFIG_SCSI_CXGB3_ISCSI=m
CONFIG_SCSI_CXGB4_ISCSI=m
CONFIG_SCSI_BNX2_ISCSI=m
# CONFIG_SCSI_BNX2X_FCOE is not set
CONFIG_BE2ISCSI=m
CONFIG_BLK_DEV_3W_XXXX_RAID=m
CONFIG_SCSI_HPSA=m
CONFIG_SCSI_3W_9XXX=m
CONFIG_SCSI_3W_SAS=m
CONFIG_SCSI_ACARD=m
CONFIG_SCSI_AHA1740=m
CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=32
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
CONFIG_AIC7XXX_DEBUG_ENABLE=y
CONFIG_AIC7XXX_DEBUG_MASK=0
CONFIG_AIC7XXX_REG_PRETTY_PRINT=y
CONFIG_SCSI_AIC7XXX_OLD=m
CONFIG_SCSI_AIC79XX=m
CONFIG_AIC79XX_CMDS_PER_DEVICE=32
CONFIG_AIC79XX_RESET_DELAY_MS=15000
CONFIG_AIC79XX_DEBUG_ENABLE=y
CONFIG_AIC79XX_DEBUG_MASK=0
CONFIG_AIC79XX_REG_PRETTY_PRINT=y
CONFIG_SCSI_AIC94XX=m
# CONFIG_AIC94XX_DEBUG is not set
CONFIG_SCSI_MVSAS=m
# CONFIG_SCSI_MVSAS_DEBUG is not set
# CONFIG_SCSI_DPT_I2O is not set
CONFIG_SCSI_ADVANSYS=m
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
CONFIG_MEGARAID_LEGACY=m
CONFIG_MEGARAID_SAS=m
CONFIG_SCSI_MPT2SAS=m
CONFIG_SCSI_MPT2SAS_MAX_SGE=128
# CONFIG_SCSI_MPT2SAS_LOGGING is not set
CONFIG_SCSI_HPTIOP=m
CONFIG_LIBFC=m
CONFIG_LIBFCOE=m
CONFIG_FCOE=m
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
# CONFIG_SCSI_IPS is not set
CONFIG_SCSI_INITIO=m
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
CONFIG_SCSI_LASI700=m
CONFIG_53C700_LE_ON_BE=y
CONFIG_SCSI_STEX=m
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
CONFIG_SCSI_ZALON=m
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
CONFIG_SCSI_QLA_FC=m
CONFIG_SCSI_QLA_ISCSI=m
CONFIG_SCSI_LPFC=m
# CONFIG_SCSI_LPFC_DEBUG_FS is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_DEBUG is not set
CONFIG_SCSI_PMCRAID=m
CONFIG_SCSI_PM8001=m
CONFIG_SCSI_SRP=m
CONFIG_SCSI_BFA_FC=m
CONFIG_SCSI_LOWLEVEL_PCMCIA=y
# CONFIG_PCMCIA_AHA152X is not set
CONFIG_PCMCIA_FDOMAIN=m
CONFIG_PCMCIA_QLOGIC=m
CONFIG_PCMCIA_SYM53C500=m
CONFIG_SCSI_DH=m
CONFIG_SCSI_DH_RDAC=m
CONFIG_SCSI_DH_HP_SW=m
CONFIG_SCSI_DH_EMC=m
CONFIG_SCSI_DH_ALUA=m
CONFIG_SCSI_OSD_INITIATOR=m
CONFIG_SCSI_OSD_ULD=m
CONFIG_SCSI_OSD_DPRINT_SENSE=1
# CONFIG_SCSI_OSD_DEBUG is not set
CONFIG_ATA=m
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=m
# CONFIG_SATA_AHCI_PLATFORM is not set
CONFIG_SATA_INIC162X=m
# CONFIG_SATA_ACARD_AHCI is not set
CONFIG_SATA_SIL24=m
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
CONFIG_PDC_ADMA=m
CONFIG_SATA_QSTOR=m
CONFIG_SATA_SX4=m
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=m
CONFIG_SATA_MV=m
CONFIG_SATA_NV=m
CONFIG_SATA_PROMISE=m
CONFIG_SATA_SIL=m
CONFIG_SATA_SIS=m
CONFIG_SATA_SVW=m
CONFIG_SATA_ULI=m
CONFIG_SATA_VIA=m
CONFIG_SATA_VITESSE=m

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARASAN_CF is not set
CONFIG_PATA_ARTOP=m
# CONFIG_PATA_ATIIXP is not set
CONFIG_PATA_ATP867X=m
CONFIG_PATA_CMD64X=m
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CS5536 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
CONFIG_PATA_IT821X=m
CONFIG_PATA_JMICRON=m
CONFIG_PATA_MARVELL=m
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
CONFIG_PATA_RDC=m
# CONFIG_PATA_SC1200 is not set
CONFIG_PATA_SCH=m
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
CONFIG_PATA_SIS=m
CONFIG_PATA_TOSHIBA=m
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_PCMCIA is not set
# CONFIG_PATA_QDI is not set
# CONFIG_PATA_RZ1000 is not set
# CONFIG_PATA_WINBOND_VLB is not set

#
# Generic fallback / legacy drivers
#
CONFIG_ATA_GENERIC=m
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
# CONFIG_MULTICORE_RAID456 is not set
CONFIG_MD_MULTIPATH=m
CONFIG_MD_FAULTY=m
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
# CONFIG_DM_RAID is not set
CONFIG_DM_LOG_USERSPACE=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_MULTIPATH_QL=m
CONFIG_DM_MULTIPATH_ST=m
CONFIG_DM_DELAY=m
CONFIG_DM_UEVENT=y
# CONFIG_DM_FLAKEY is not set
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_LOOPBACK_TARGET=m
# CONFIG_LOOPBACK_TARGET_CDB_DEBUG is not set
CONFIG_FUSION=y
CONFIG_FUSION_SPI=m
CONFIG_FUSION_FC=m
CONFIG_FUSION_SAS=m
CONFIG_FUSION_MAX_SGE=128
CONFIG_FUSION_CTL=m
# CONFIG_FUSION_LOGGING is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
CONFIG_FIREWIRE_NOSY=m
CONFIG_I2O=m
CONFIG_I2O_LCT_NOTIFY_ON_CHANGES=y
CONFIG_I2O_EXT_ADAPTEC=y
CONFIG_I2O_EXT_ADAPTEC_DMA64=y
CONFIG_I2O_CONFIG=m
CONFIG_I2O_CONFIG_OLD_IOCTL=y
CONFIG_I2O_BUS=m
CONFIG_I2O_BLOCK=m
CONFIG_I2O_SCSI=m
CONFIG_I2O_PROC=m
CONFIG_NETDEVICES=y
CONFIG_IFB=m
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
CONFIG_MACVLAN=m
CONFIG_MACVTAP=m
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
CONFIG_VETH=m
# CONFIG_ARCNET is not set
CONFIG_MII=m
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
# CONFIG_BCM63XX_PHY is not set
CONFIG_ICPLUS_PHY=m
CONFIG_REALTEK_PHY=m
CONFIG_NATIONAL_PHY=m
CONFIG_STE10XP=m
CONFIG_LSI_ET1011C_PHY=m
CONFIG_MICREL_PHY=m
CONFIG_MDIO_BITBANG=m
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=m
CONFIG_HAPPYMEAL=m
CONFIG_SUNGEM=m
CONFIG_CASSINI=m
CONFIG_NET_VENDOR_3COM=y
CONFIG_EL1=m
CONFIG_EL2=m
CONFIG_EL16=m
CONFIG_EL3=m
CONFIG_VORTEX=m
CONFIG_TYPHOON=m
CONFIG_NET_VENDOR_SMC=y
CONFIG_WD80x3=m
CONFIG_ULTRA=m
CONFIG_ULTRA32=m
CONFIG_SMC9194=m
CONFIG_ENC28J60=m
# CONFIG_ENC28J60_WRITEVERIFY is not set
CONFIG_ETHOC=m
CONFIG_NET_VENDOR_RACAL=y
# CONFIG_NI52 is not set
CONFIG_DNET=m
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=m
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
CONFIG_TULIP_NAPI=y
CONFIG_TULIP_NAPI_HW_MITIGATION=y
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
CONFIG_ULI526X=m
CONFIG_PCMCIA_XIRCOM=m
CONFIG_AT1700=m
CONFIG_DEPCA=m
CONFIG_HP100=m
CONFIG_NET_ISA=y
CONFIG_E2100=m
CONFIG_EWRK3=m
CONFIG_EEXPRESS=m
CONFIG_EEXPRESS_PRO=m
CONFIG_HPLAN_PLUS=m
CONFIG_HPLAN=m
CONFIG_LP486E=m
CONFIG_ETH16I=m
CONFIG_NE2000=m
CONFIG_SEEQ8005=m
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
CONFIG_PCNET32=m
CONFIG_AMD8111_ETH=m
CONFIG_ADAPTEC_STARFIRE=m
CONFIG_AC3200=m
CONFIG_KSZ884X_PCI=m
CONFIG_APRICOT=m
CONFIG_B44=m
CONFIG_B44_PCI_AUTOSELECT=y
CONFIG_B44_PCICORE_AUTOSELECT=y
CONFIG_B44_PCI=y
CONFIG_FORCEDETH=m
CONFIG_CS89x0=m
CONFIG_E100=m
CONFIG_LNE390=m
CONFIG_FEALNX=m
CONFIG_NATSEMI=m
CONFIG_NE2K_PCI=m
CONFIG_NE3210=m
CONFIG_ES3210=m
CONFIG_8139CP=m
CONFIG_8139TOO=m
# CONFIG_8139TOO_PIO is not set
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_OLD_RX_RESET is not set
CONFIG_R6040=m
CONFIG_SIS900=m
CONFIG_EPIC100=m
CONFIG_SMSC9420=m
CONFIG_SUNDANCE=m
# CONFIG_SUNDANCE_MMIO is not set
CONFIG_TLAN=m
CONFIG_KS8851=m
CONFIG_KS8851_MLL=m
CONFIG_VIA_RHINE=m
# CONFIG_VIA_RHINE_MMIO is not set
CONFIG_SC92031=m
# CONFIG_NET_POCKET is not set
CONFIG_ATL2=m
CONFIG_NETDEV_1000=y
CONFIG_ACENIC=m
# CONFIG_ACENIC_OMIT_TIGON_I is not set
CONFIG_DL2K=m
CONFIG_E1000=m
CONFIG_E1000E=m
CONFIG_IP1000=m
CONFIG_IGB=m
CONFIG_IGBVF=m
CONFIG_NS83820=m
CONFIG_HAMACHI=m
CONFIG_YELLOWFIN=m
CONFIG_R8169=m
CONFIG_SIS190=m
CONFIG_SKGE=m
# CONFIG_SKGE_DEBUG is not set
CONFIG_SKY2=m
# CONFIG_SKY2_DEBUG is not set
CONFIG_VIA_VELOCITY=m
CONFIG_TIGON3=m
CONFIG_BNX2=m
CONFIG_CNIC=m
CONFIG_QLA3XXX=m
CONFIG_ATL1=m
CONFIG_ATL1E=m
CONFIG_ATL1C=m
CONFIG_JME=m
# CONFIG_STMMAC_ETH is not set
# CONFIG_PCH_GBE is not set
CONFIG_NETDEV_10000=y
CONFIG_MDIO=m
CONFIG_CHELSIO_T1=m
CONFIG_CHELSIO_T1_1G=y
CONFIG_CHELSIO_T3=m
CONFIG_CHELSIO_T4=m
CONFIG_CHELSIO_T4VF=m
CONFIG_ENIC=m
CONFIG_IXGBE=m
CONFIG_IXGBE_DCB=y
CONFIG_IXGB=m
CONFIG_S2IO=m
# CONFIG_VXGE is not set
CONFIG_MYRI10GE=m
CONFIG_NETXEN_NIC=m
# CONFIG_NIU is not set
CONFIG_MLX4_EN=m
CONFIG_MLX4_CORE=m
CONFIG_MLX4_DEBUG=y
CONFIG_TEHUTI=m
CONFIG_BNX2X=m
CONFIG_QLCNIC=m
CONFIG_QLGE=m
CONFIG_BNA=m
CONFIG_SFC=m
CONFIG_BE2NET=m
# CONFIG_TR is not set
CONFIG_WLAN=y
CONFIG_PCMCIA_RAYCS=m
CONFIG_LIBERTAS_THINFIRM=m
# CONFIG_LIBERTAS_THINFIRM_DEBUG is not set
CONFIG_LIBERTAS_THINFIRM_USB=m
# CONFIG_ATMEL is not set
CONFIG_AT76C50X_USB=m
CONFIG_AIRO_CS=m
CONFIG_PCMCIA_WL3501=m
# CONFIG_PRISM54 is not set
# CONFIG_USB_ZD1201 is not set
CONFIG_USB_NET_RNDIS_WLAN=m
CONFIG_RTL8180=m
CONFIG_RTL8187=m
CONFIG_RTL8187_LEDS=y
CONFIG_ADM8211=m
CONFIG_MAC80211_HWSIM=m
CONFIG_MWL8K=m
CONFIG_ATH_COMMON=m
# CONFIG_ATH_DEBUG is not set
CONFIG_ATH5K=m
# CONFIG_ATH5K_DEBUG is not set
CONFIG_ATH5K_PCI=y
CONFIG_ATH9K_HW=m
CONFIG_ATH9K_COMMON=m
CONFIG_ATH9K=m
# CONFIG_ATH9K_DEBUGFS is not set
CONFIG_ATH9K_RATE_CONTROL=y
CONFIG_ATH9K_HTC=m
# CONFIG_ATH9K_HTC_DEBUGFS is not set
CONFIG_AR9170_USB=m
CONFIG_AR9170_LEDS=y
# CONFIG_CARL9170 is not set
CONFIG_B43=m
CONFIG_B43_PCI_AUTOSELECT=y
CONFIG_B43_PCICORE_AUTOSELECT=y
CONFIG_B43_PCMCIA=y
CONFIG_B43_PIO=y
CONFIG_B43_PHY_N=y
CONFIG_B43_PHY_LP=y
CONFIG_B43_LEDS=y
CONFIG_B43_HWRNG=y
# CONFIG_B43_DEBUG is not set
CONFIG_B43LEGACY=m
CONFIG_B43LEGACY_PCI_AUTOSELECT=y
CONFIG_B43LEGACY_PCICORE_AUTOSELECT=y
CONFIG_B43LEGACY_LEDS=y
CONFIG_B43LEGACY_HWRNG=y
CONFIG_B43LEGACY_DEBUG=y
CONFIG_B43LEGACY_DMA=y
CONFIG_B43LEGACY_PIO=y
CONFIG_B43LEGACY_DMA_AND_PIO_MODE=y
# CONFIG_B43LEGACY_DMA_MODE is not set
# CONFIG_B43LEGACY_PIO_MODE is not set
CONFIG_HOSTAP=m
CONFIG_HOSTAP_FIRMWARE=y
# CONFIG_HOSTAP_FIRMWARE_NVRAM is not set
CONFIG_HOSTAP_PLX=m
CONFIG_HOSTAP_PCI=m
CONFIG_HOSTAP_CS=m
# CONFIG_IPW2100 is not set
CONFIG_IPW2200=m
CONFIG_IPW2200_MONITOR=y
CONFIG_IPW2200_RADIOTAP=y
CONFIG_IPW2200_PROMISCUOUS=y
CONFIG_IPW2200_QOS=y
# CONFIG_IPW2200_DEBUG is not set
CONFIG_LIBIPW=m
# CONFIG_LIBIPW_DEBUG is not set
CONFIG_IWLAGN=m

#
# Debugging Options
#
# CONFIG_IWLWIFI_DEBUG is not set
# CONFIG_IWL_P2P is not set
# CONFIG_IWLWIFI_LEGACY is not set
CONFIG_LIBERTAS=m
CONFIG_LIBERTAS_USB=m
CONFIG_LIBERTAS_CS=m
CONFIG_LIBERTAS_SPI=m
# CONFIG_LIBERTAS_DEBUG is not set
CONFIG_LIBERTAS_MESH=y
CONFIG_HERMES=m
# CONFIG_HERMES_PRISM is not set
CONFIG_HERMES_CACHE_FW_ON_INIT=y
# CONFIG_PLX_HERMES is not set
# CONFIG_TMD_HERMES is not set
CONFIG_NORTEL_HERMES=m
CONFIG_PCMCIA_HERMES=m
CONFIG_PCMCIA_SPECTRUM=m
CONFIG_ORINOCO_USB=m
CONFIG_P54_COMMON=m
CONFIG_P54_USB=m
CONFIG_P54_PCI=m
CONFIG_P54_SPI=m
# CONFIG_P54_SPI_DEFAULT_EEPROM is not set
CONFIG_P54_LEDS=y
CONFIG_RT2X00=m
CONFIG_RT2400PCI=m
CONFIG_RT2500PCI=m
CONFIG_RT61PCI=m
CONFIG_RT2800PCI=m
# CONFIG_RT2800PCI_RT33XX is not set
# CONFIG_RT2800PCI_RT35XX is not set
# CONFIG_RT2800PCI_RT53XX is not set
CONFIG_RT2500USB=m
CONFIG_RT73USB=m
CONFIG_RT2800USB=m
# CONFIG_RT2800USB_RT33XX is not set
# CONFIG_RT2800USB_RT35XX is not set
# CONFIG_RT2800USB_UNKNOWN is not set
CONFIG_RT2800_LIB=m
CONFIG_RT2X00_LIB_PCI=m
CONFIG_RT2X00_LIB_USB=m
CONFIG_RT2X00_LIB=m
CONFIG_RT2X00_LIB_HT=y
CONFIG_RT2X00_LIB_FIRMWARE=y
CONFIG_RT2X00_LIB_CRYPTO=y
CONFIG_RT2X00_LIB_LEDS=y
# CONFIG_RT2X00_DEBUG is not set
CONFIG_RTL8192CE=m
# CONFIG_RTL8192CU is not set
CONFIG_RTLWIFI=m
CONFIG_RTL8192C_COMMON=m
CONFIG_WL1251=m
CONFIG_WL1251_SPI=m
# CONFIG_WL12XX_MENU is not set
CONFIG_ZD1211RW=m
# CONFIG_ZD1211RW_DEBUG is not set

#
# WiMAX Wireless Broadband devices
#
CONFIG_WIMAX_I2400M=m

#
# Enable MMC support to see WiMAX SDIO drivers
#
CONFIG_WIMAX_I2400M_USB=m
CONFIG_WIMAX_I2400M_DEBUG_LEVEL=8

#
# USB Network Adapters
#
CONFIG_USB_CATC=m
CONFIG_USB_KAWETH=m
CONFIG_USB_PEGASUS=m
CONFIG_USB_RTL8150=m
CONFIG_USB_USBNET=m
CONFIG_USB_NET_AX8817X=m
CONFIG_USB_NET_CDCETHER=m
CONFIG_USB_NET_CDC_EEM=m
CONFIG_USB_NET_CDC_NCM=m
CONFIG_USB_NET_DM9601=m
CONFIG_USB_NET_SMSC75XX=m
CONFIG_USB_NET_SMSC95XX=m
CONFIG_USB_NET_GL620A=m
CONFIG_USB_NET_NET1080=m
CONFIG_USB_NET_PLUSB=m
CONFIG_USB_NET_MCS7830=m
CONFIG_USB_NET_RNDIS_HOST=m
CONFIG_USB_NET_CDC_SUBSET=m
CONFIG_USB_ALI_M5632=y
CONFIG_USB_AN2720=y
CONFIG_USB_BELKIN=y
CONFIG_USB_ARMLINUX=y
CONFIG_USB_EPSON2888=y
CONFIG_USB_KC2190=y
CONFIG_USB_NET_ZAURUS=m
CONFIG_USB_NET_CX82310_ETH=m
CONFIG_USB_HSO=m
CONFIG_USB_NET_INT51X1=m
CONFIG_USB_CDC_PHONET=m
CONFIG_USB_IPHETH=m
CONFIG_USB_SIERRA_NET=m
# CONFIG_USB_VL600 is not set
CONFIG_NET_PCMCIA=y
CONFIG_PCMCIA_3C589=m
CONFIG_PCMCIA_3C574=m
CONFIG_PCMCIA_FMVJ18X=m
CONFIG_PCMCIA_PCNET=m
CONFIG_PCMCIA_NMCLAN=m
CONFIG_PCMCIA_SMC91C92=m
CONFIG_PCMCIA_XIRC2PS=m
CONFIG_PCMCIA_AXNET=m
# CONFIG_WAN is not set
CONFIG_IEEE802154_DRIVERS=m
CONFIG_IEEE802154_FAKEHARD=m

#
# CAIF transport drivers
#
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_PLIP=m
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
CONFIG_PPTP=m
CONFIG_PPPOL2TP=m
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLHC=m
CONFIG_SLIP_SMART=y
CONFIG_SLIP_MODE_SLIP6=y
# CONFIG_NET_FC is not set
CONFIG_NETCONSOLE=m
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_VMXNET3=m
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=m
CONFIG_INPUT_POLLDEV=m
CONFIG_INPUT_SPARSEKMAP=m

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ADP5588=m
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
# CONFIG_KEYBOARD_QT1070 is not set
CONFIG_KEYBOARD_QT2160=m
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_TCA6416 is not set
CONFIG_KEYBOARD_HIL_OLD=m
CONFIG_KEYBOARD_HIL=m
CONFIG_KEYBOARD_LM8323=m
CONFIG_KEYBOARD_MAX7359=m
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_NEWTON is not set
CONFIG_KEYBOARD_OPENCORES=m
CONFIG_KEYBOARD_STOWAWAY=m
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=m
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_MOUSE_PS2_SENTELIC=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_INPORT is not set
# CONFIG_MOUSE_LOGIBM is not set
# CONFIG_MOUSE_PC110PAD is not set
# CONFIG_MOUSE_VSXXXAA is not set
CONFIG_MOUSE_SYNAPTICS_I2C=m
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
CONFIG_INPUT_ATI_REMOTE=m
CONFIG_INPUT_ATI_REMOTE2=m
CONFIG_INPUT_KEYSPAN_REMOTE=m
CONFIG_INPUT_POWERMATE=m
CONFIG_INPUT_YEALINK=m
CONFIG_INPUT_CM109=m
# CONFIG_INPUT_UINPUT is not set
CONFIG_HP_SDC_RTC=m
CONFIG_INPUT_PCF50633_PMU=m
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_CMA3000 is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=m
# CONFIG_SERIO_PARKBD is not set
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=m
CONFIG_HIL_MLC=m
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
CONFIG_SERIO_ALTERA_PS2=m
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_NOZOMI=m
CONFIG_N_GSM=m
# CONFIG_DEVKMEM is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_CS=m
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_FOURPORT=m
CONFIG_SERIAL_8250_ACCENT=m
CONFIG_SERIAL_8250_BOCA=m
# CONFIG_SERIAL_8250_EXAR_ST16C554 is not set
CONFIG_SERIAL_8250_HUB6=m
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_MAX3100=m
# CONFIG_SERIAL_MAX3107 is not set
CONFIG_SERIAL_MFD_HSU=m
CONFIG_SERIAL_MUX=y
CONFIG_SERIAL_MUX_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_PCH_UART is not set
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=m
CONFIG_HW_RANDOM_TIMERIOMEM=m
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# PCMCIA character devices
#
CONFIG_SYNCLINK_CS=m
CONFIG_CARDMAN_4000=m
CONFIG_CARDMAN_4040=m
CONFIG_IPWIRELESS=m
# CONFIG_RAW_DRIVER is not set
CONFIG_TCG_TPM=m
CONFIG_TCG_TIS=m
CONFIG_TCG_NSC=m
CONFIG_TCG_ATMEL=m
CONFIG_DEVPORT=y
CONFIG_RAMOOPS=m
CONFIG_I2C=m
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=m
CONFIG_I2C_ALGOPCA=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
CONFIG_I2C_ISCH=m
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_INTEL_MID is not set
CONFIG_I2C_OCORES=m
CONFIG_I2C_PCA_PLATFORM=m
# CONFIG_I2C_PXA_PCI is not set
CONFIG_I2C_SIMTEC=m
# CONFIG_I2C_XILINX is not set
# CONFIG_I2C_EG20T is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_PARPORT is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
CONFIG_I2C_TAOS_EVM=m
CONFIG_I2C_TINY_USB=m

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_PCA_ISA is not set
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y

#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
CONFIG_SPI_BITBANG=m
CONFIG_SPI_BUTTERFLY=m
CONFIG_SPI_LM70_LLP=m
# CONFIG_SPI_PXA2XX_PCI is not set
# CONFIG_SPI_TOPCLIFF_PCH is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_DESIGNWARE is not set

#
# SPI Protocol Masters
#
# CONFIG_SPI_SPIDEV is not set
CONFIG_SPI_TLE62X0=m

#
# PPS support
#
CONFIG_PPS=m
# CONFIG_PPS_DEBUG is not set
# CONFIG_NTP_PPS is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
CONFIG_PPS_CLIENT_LDISC=m
# CONFIG_PPS_CLIENT_PARPORT is not set

#
# PPS generators support
#
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
CONFIG_SENSORS_AD7414=m
CONFIG_SENSORS_AD7418=m
CONFIG_SENSORS_ADCXX=m
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
CONFIG_SENSORS_ADM1029=m
# CONFIG_SENSORS_ADM1031 is not set
CONFIG_SENSORS_ADM9240=m
CONFIG_SENSORS_ADT7411=m
CONFIG_SENSORS_ADT7462=m
CONFIG_SENSORS_ADT7470=m
CONFIG_SENSORS_ADT7475=m
CONFIG_SENSORS_ASC7621=m
CONFIG_SENSORS_ATXP1=m
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
CONFIG_SENSORS_I5K_AMB=m
# CONFIG_SENSORS_F71805F is not set
CONFIG_SENSORS_F71882FG=m
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_G760A=m
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LM63 is not set
CONFIG_SENSORS_LM70=m
CONFIG_SENSORS_LM73=m
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
CONFIG_SENSORS_LM93=m
# CONFIG_SENSORS_LTC4151 is not set
CONFIG_SENSORS_LTC4215=m
CONFIG_SENSORS_LTC4245=m
# CONFIG_SENSORS_LTC4261 is not set
CONFIG_SENSORS_LM95241=m
CONFIG_SENSORS_MAX1111=m
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX6639 is not set
CONFIG_SENSORS_MAX6650=m
# CONFIG_SENSORS_PC87360 is not set
CONFIG_SENSORS_PC87427=m
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMM665 is not set
CONFIG_SENSORS_DME1737=m
CONFIG_SENSORS_EMC1403=m
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
CONFIG_SENSORS_SMSC47M192=m
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH5627 is not set
# CONFIG_SENSORS_ADS1015 is not set
CONFIG_SENSORS_ADS7828=m
CONFIG_SENSORS_ADS7871=m
CONFIG_SENSORS_AMC6821=m
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_TMP102=m
CONFIG_SENSORS_TMP401=m
CONFIG_SENSORS_TMP421=m
# CONFIG_SENSORS_VIA686A is not set
CONFIG_SENSORS_VT1211=m
CONFIG_SENSORS_VT8231=m
# CONFIG_SENSORS_W83781D is not set
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
CONFIG_SENSORS_W83L786NG=m
# CONFIG_SENSORS_W83627HF is not set
CONFIG_SENSORS_W83627EHF=m
# CONFIG_THERMAL is not set
CONFIG_WATCHDOG=y
# CONFIG_WATCHDOG_NOWAYOUT is not set

#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
# CONFIG_ALIM7101_WDT is not set

#
# ISA-based Watchdog Cards
#
# CONFIG_PCWATCHDOG is not set
# CONFIG_MIXCOMWD is not set
# CONFIG_WDT is not set

#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_BLOCKIO=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
CONFIG_SSB_B43_PCI_BRIDGE=y
CONFIG_SSB_PCMCIAHOST_POSSIBLE=y
CONFIG_SSB_PCMCIAHOST=y
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y
CONFIG_MFD_SUPPORT=y
CONFIG_MFD_CORE=m
CONFIG_MFD_SM501=m
CONFIG_HTC_PASIC3=m
# CONFIG_TPS6105X is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TMIO is not set
CONFIG_MFD_WM8400=m
# CONFIG_MFD_WM831X_SPI is not set
CONFIG_MFD_PCF50633=m
# CONFIG_MFD_MC13XXX is not set
CONFIG_PCF50633_ADC=m
CONFIG_PCF50633_GPIO=m
# CONFIG_ABX500_CORE is not set
# CONFIG_EZX_PCAP is not set
CONFIG_LPC_SCH=m
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_WL1273_CORE is not set
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
# CONFIG_REGULATOR_DUMMY is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=m
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
CONFIG_REGULATOR_USERSPACE_CONSUMER=m
CONFIG_REGULATOR_BQ24022=m
CONFIG_REGULATOR_MAX1586=m
CONFIG_REGULATOR_MAX8649=m
CONFIG_REGULATOR_MAX8660=m
# CONFIG_REGULATOR_MAX8952 is not set
CONFIG_REGULATOR_WM8400=m
CONFIG_REGULATOR_PCF50633=m
CONFIG_REGULATOR_LP3971=m
# CONFIG_REGULATOR_LP3972 is not set
CONFIG_REGULATOR_TPS65023=m
CONFIG_REGULATOR_TPS6507X=m
# CONFIG_REGULATOR_ISL6271A is not set
# CONFIG_REGULATOR_AD5398 is not set
# CONFIG_REGULATOR_TPS6524X is not set
CONFIG_MEDIA_SUPPORT=m

#
# Multimedia core support
#
# CONFIG_MEDIA_CONTROLLER is not set
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
# CONFIG_VIDEO_MEDIA is not set

#
# Multimedia drivers
#
CONFIG_RC_CORE=m
CONFIG_LIRC=m
CONFIG_RC_MAP=m
CONFIG_IR_NEC_DECODER=m
CONFIG_IR_RC5_DECODER=m
CONFIG_IR_RC6_DECODER=m
CONFIG_IR_JVC_DECODER=m
CONFIG_IR_SONY_DECODER=m
CONFIG_IR_RC5_SZ_DECODER=m
CONFIG_IR_LIRC_CODEC=m
CONFIG_IR_IMON=m
CONFIG_IR_MCEUSB=m
CONFIG_IR_STREAMZAP=m
# CONFIG_RC_LOOPBACK is not set

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_DRM is not set
# CONFIG_STUB_POULSBO is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=m
CONFIG_FB_SYS_COPYAREA=m
CONFIG_FB_SYS_IMAGEBLIT=m
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=m
# CONFIG_FB_WMT_GE_ROPS is not set
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_STI=y
# CONFIG_FB_UVESA is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_TMIO is not set
CONFIG_FB_SM501=m
# CONFIG_FB_UDL is not set
# CONFIG_FB_VIRTUAL is not set
CONFIG_FB_METRONOME=m
CONFIG_FB_MB862XX=m
CONFIG_FB_MB862XX_PCI_GDC=y
# CONFIG_FB_BROADSHEET is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_GENERIC is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_PCF50633 is not set

#
# Display device support
#
CONFIG_DISPLAY_SUPPORT=m

#
# Display hardware drivers
#

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_LOGO_PARISC_CLUT224=y
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
# CONFIG_SOUND_OSS_CORE_PRECLAIM is not set
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_JACK=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
# CONFIG_SND_SEQUENCER_OSS is not set
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_RAWMIDI_SEQ=m
CONFIG_SND_OPL3_LIB_SEQ=m
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_MPU401_UART=m
CONFIG_SND_OPL3_LIB=m
CONFIG_SND_VX_LIB=m
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
CONFIG_SND_DUMMY=m
CONFIG_SND_ALOOP=m
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
CONFIG_SND_MTS64=m
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
CONFIG_SND_PORTMAN2X4=m
CONFIG_SND_AC97_POWER_SAVE=y
CONFIG_SND_AC97_POWER_SAVE_DEFAULT=0
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
CONFIG_SND_ALS300=m
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
CONFIG_SND_OXYGEN_LIB=m
CONFIG_SND_OXYGEN=m
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
CONFIG_SND_CS5535AUDIO=m
CONFIG_SND_CTXFI=m
CONFIG_SND_DARLA20=m
CONFIG_SND_GINA20=m
CONFIG_SND_LAYLA20=m
CONFIG_SND_DARLA24=m
CONFIG_SND_GINA24=m
CONFIG_SND_LAYLA24=m
CONFIG_SND_MONA=m
CONFIG_SND_MIA=m
CONFIG_SND_ECHO3G=m
CONFIG_SND_INDIGO=m
CONFIG_SND_INDIGOIO=m
CONFIG_SND_INDIGODJ=m
CONFIG_SND_INDIGOIOX=m
CONFIG_SND_INDIGODJX=m
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
CONFIG_SND_HDSPM=m
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
CONFIG_SND_LX6464ES=m
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
CONFIG_SND_PCXHR=m
CONFIG_SND_RIPTIDE=m
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
CONFIG_SND_VIRTUOSO=m
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
CONFIG_SND_SPI=y
CONFIG_SND_USB=y
CONFIG_SND_USB_AUDIO=m
CONFIG_SND_USB_UA101=m
CONFIG_SND_USB_CAIAQ=m
CONFIG_SND_USB_CAIAQ_INPUT=y
# CONFIG_SND_USB_6FIRE is not set
CONFIG_SND_PCMCIA=y
CONFIG_SND_VXPOCKET=m
CONFIG_SND_PDAUDIOCF=m
CONFIG_SND_GSC=y
CONFIG_SND_HARMONY=m
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
CONFIG_HID_SUPPORT=y
CONFIG_HID=m
CONFIG_HIDRAW=y

#
# USB Input Devices
#
CONFIG_USB_HID=m
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y

#
# Special HID drivers
#
CONFIG_HID_3M_PCT=m
CONFIG_HID_A4TECH=m
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=m
CONFIG_HID_BELKIN=m
CONFIG_HID_CANDO=m
CONFIG_HID_CHERRY=m
CONFIG_HID_CHICONY=m
CONFIG_HID_PRODIKEYS=m
CONFIG_HID_CYPRESS=m
CONFIG_HID_DRAGONRISE=m
CONFIG_DRAGONRISE_FF=y
# CONFIG_HID_EMS_FF is not set
CONFIG_HID_EZKEY=m
# CONFIG_HID_KEYTOUCH is not set
CONFIG_HID_KYE=m
CONFIG_HID_UCLOGIC=m
CONFIG_HID_WALTOP=m
CONFIG_HID_GYRATION=m
CONFIG_HID_TWINHAN=m
CONFIG_HID_KENSINGTON=m
# CONFIG_HID_LCPOWER is not set
CONFIG_HID_LOGITECH=m
CONFIG_LOGITECH_FF=y
CONFIG_LOGIRUMBLEPAD2_FF=y
CONFIG_LOGIG940_FF=y
CONFIG_LOGIWII_FF=y
CONFIG_HID_MICROSOFT=m
CONFIG_HID_MOSART=m
CONFIG_HID_MONTEREY=m
# CONFIG_HID_MULTITOUCH is not set
CONFIG_HID_NTRIG=m
CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=m
CONFIG_PANTHERLORD_FF=y
CONFIG_HID_PETALYNX=m
CONFIG_HID_PICOLCD=m
CONFIG_HID_PICOLCD_FB=y
CONFIG_HID_PICOLCD_BACKLIGHT=y
CONFIG_HID_PICOLCD_LEDS=y
CONFIG_HID_QUANTA=m
CONFIG_HID_ROCCAT=m
CONFIG_HID_ROCCAT_COMMON=m
# CONFIG_HID_ROCCAT_ARVO is not set
CONFIG_HID_ROCCAT_KONE=m
# CONFIG_HID_ROCCAT_KONEPLUS is not set
# CONFIG_HID_ROCCAT_KOVAPLUS is not set
CONFIG_HID_ROCCAT_PYRA=m
CONFIG_HID_SAMSUNG=m
CONFIG_HID_SONY=m
CONFIG_HID_STANTUM=m
CONFIG_HID_SUNPLUS=m
CONFIG_HID_GREENASIA=m
CONFIG_GREENASIA_FF=y
CONFIG_HID_SMARTJOYPLUS=m
CONFIG_SMARTJOYPLUS_FF=y
CONFIG_HID_TOPSEED=m
CONFIG_HID_THRUSTMASTER=m
CONFIG_THRUSTMASTER_FF=y
CONFIG_HID_ZEROPLUS=m
CONFIG_ZEROPLUS_FF=y
CONFIG_HID_ZYDACRON=m
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=m
CONFIG_USB_DEBUG=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_DYNAMIC_MINORS=y
CONFIG_USB_MON=m
CONFIG_USB_WUSB=m
CONFIG_USB_WUSB_CBAF=m
# CONFIG_USB_WUSB_CBAF_DEBUG is not set

#
# USB Host Controller Drivers
#
CONFIG_USB_C67X00_HCD=m
CONFIG_USB_XHCI_HCD=m
# CONFIG_USB_XHCI_HCD_DEBUGGING is not set
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
CONFIG_USB_EHCI_TT_NEWSCHED=y
# CONFIG_USB_OXU210HP_HCD is not set
CONFIG_USB_ISP116X_HCD=m
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_HCD_SSB is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_UHCI_HCD is not set
CONFIG_USB_U132_HCD=m
# CONFIG_USB_SL811_HCD is not set
CONFIG_USB_R8A66597_HCD=m
CONFIG_USB_WHCI_HCD=m
CONFIG_USB_HWA_HCD=m

#
# Enable Host or Gadget support to see Inventra options
#

#
# USB Device Class drivers
#
CONFIG_USB_ACM=m
CONFIG_USB_PRINTER=m
CONFIG_USB_WDM=m
CONFIG_USB_TMC=m

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
CONFIG_USB_STORAGE_DATAFAB=m
CONFIG_USB_STORAGE_FREECOM=m
CONFIG_USB_STORAGE_ISD200=m
CONFIG_USB_STORAGE_USBAT=m
CONFIG_USB_STORAGE_SDDR09=m
CONFIG_USB_STORAGE_SDDR55=m
CONFIG_USB_STORAGE_JUMPSHOT=m
CONFIG_USB_STORAGE_ALAUDA=m
CONFIG_USB_STORAGE_ONETOUCH=m
CONFIG_USB_STORAGE_KARMA=m
CONFIG_USB_STORAGE_CYPRESS_ATACB=m
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
CONFIG_USB_UAS=m
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
CONFIG_USB_SERIAL=m
CONFIG_USB_EZUSB=y
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_AIRCABLE=m
CONFIG_USB_SERIAL_ARK3116=m
CONFIG_USB_SERIAL_BELKIN=m
CONFIG_USB_SERIAL_CH341=m
CONFIG_USB_SERIAL_WHITEHEAT=m
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
CONFIG_USB_SERIAL_CP210X=m
CONFIG_USB_SERIAL_CYPRESS_M8=m
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_FUNSOFT=m
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
CONFIG_USB_SERIAL_IR=m
CONFIG_USB_SERIAL_EDGEPORT=m
CONFIG_USB_SERIAL_EDGEPORT_TI=m
CONFIG_USB_SERIAL_GARMIN=m
CONFIG_USB_SERIAL_IPW=m
CONFIG_USB_SERIAL_IUU=m
CONFIG_USB_SERIAL_KEYSPAN_PDA=m
CONFIG_USB_SERIAL_KEYSPAN=m
CONFIG_USB_SERIAL_KLSI=m
CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
CONFIG_USB_SERIAL_MOS7720=m
CONFIG_USB_SERIAL_MOS7715_PARPORT=y
CONFIG_USB_SERIAL_MOS7840=m
CONFIG_USB_SERIAL_MOTOROLA=m
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=m
CONFIG_USB_SERIAL_OTI6858=m
CONFIG_USB_SERIAL_QCAUX=m
CONFIG_USB_SERIAL_QUALCOMM=m
CONFIG_USB_SERIAL_SPCP8X5=m
CONFIG_USB_SERIAL_HP4X=m
CONFIG_USB_SERIAL_SAFE=m
# CONFIG_USB_SERIAL_SAFE_PADDED is not set
CONFIG_USB_SERIAL_SAMBA=m
CONFIG_USB_SERIAL_SIEMENS_MPI=m
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
CONFIG_USB_SERIAL_SYMBOL=m
CONFIG_USB_SERIAL_TI=m
CONFIG_USB_SERIAL_CYBERJACK=m
CONFIG_USB_SERIAL_XIRCOM=m
CONFIG_USB_SERIAL_WWAN=m
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_SERIAL_OMNINET=m
CONFIG_USB_SERIAL_OPTICON=m
CONFIG_USB_SERIAL_VIVOPAY_SERIAL=m
CONFIG_USB_SERIAL_ZIO=m
CONFIG_USB_SERIAL_SSU100=m
CONFIG_USB_SERIAL_DEBUG=m

#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=m
CONFIG_USB_EMI26=m
CONFIG_USB_ADUTUX=m
CONFIG_USB_SEVSEG=m
CONFIG_USB_RIO500=m
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
CONFIG_USB_LED=m
CONFIG_USB_CYPRESS_CY7C63=m
CONFIG_USB_CYTHERM=m
CONFIG_USB_IDMOUSE=m
CONFIG_USB_FTDI_ELAN=m
CONFIG_USB_APPLEDISPLAY=m
CONFIG_USB_SISUSBVGA=m
CONFIG_USB_SISUSBVGA_CON=y
CONFIG_USB_LD=m
CONFIG_USB_TRANCEVIBRATOR=m
CONFIG_USB_IOWARRIOR=m
CONFIG_USB_TEST=m
CONFIG_USB_ISIGHTFW=m
# CONFIG_USB_YUREX is not set
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
CONFIG_USB_OTG_UTILS=y
CONFIG_NOP_USB_XCEIV=m
CONFIG_UWB=m
CONFIG_UWB_HWA=m
CONFIG_UWB_WHCI=m
CONFIG_UWB_I1480U=m
# CONFIG_MMC is not set
CONFIG_MEMSTICK=m
# CONFIG_MEMSTICK_DEBUG is not set

#
# MemoryStick drivers
#
# CONFIG_MEMSTICK_UNSAFE_RESUME is not set
CONFIG_MSPRO_BLOCK=m

#
# MemoryStick Host Controller Drivers
#
CONFIG_MEMSTICK_TIFM_MS=m
CONFIG_MEMSTICK_JMICRON_38X=m
# CONFIG_MEMSTICK_R592 is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# LED drivers
#
# CONFIG_LEDS_LM3530 is not set
CONFIG_LEDS_PCA9532=m
CONFIG_LEDS_LP3944=m
# CONFIG_LEDS_LP5521 is not set
# CONFIG_LEDS_LP5523 is not set
CONFIG_LEDS_PCA955X=m
CONFIG_LEDS_DAC124S085=m
CONFIG_LEDS_REGULATOR=m
CONFIG_LEDS_BD2802=m
CONFIG_LEDS_TRIGGERS=y

#
# LED Triggers
#
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_IDE_DISK=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m

#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_NFC_DEVICES is not set
CONFIG_ACCESSIBILITY=y
CONFIG_A11Y_BRAILLE_CONSOLE=y
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
CONFIG_INFINIBAND_USER_MEM=y
CONFIG_INFINIBAND_ADDR_TRANS=y
CONFIG_INFINIBAND_MTHCA=m
CONFIG_INFINIBAND_MTHCA_DEBUG=y
CONFIG_INFINIBAND_QIB=m
CONFIG_INFINIBAND_AMSO1100=m
# CONFIG_INFINIBAND_AMSO1100_DEBUG is not set
CONFIG_INFINIBAND_CXGB3=m
# CONFIG_INFINIBAND_CXGB3_DEBUG is not set
CONFIG_INFINIBAND_CXGB4=m
CONFIG_MLX4_INFINIBAND=m
CONFIG_INFINIBAND_NES=m
# CONFIG_INFINIBAND_NES_DEBUG is not set
CONFIG_INFINIBAND_IPOIB=m
CONFIG_INFINIBAND_IPOIB_CM=y
CONFIG_INFINIBAND_IPOIB_DEBUG=y
# CONFIG_INFINIBAND_IPOIB_DEBUG_DATA is not set
CONFIG_INFINIBAND_SRP=m
CONFIG_INFINIBAND_ISER=m
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
CONFIG_RTC_DRV_DS1307=m
CONFIG_RTC_DRV_DS1374=m
CONFIG_RTC_DRV_DS1672=m
# CONFIG_RTC_DRV_DS3232 is not set
CONFIG_RTC_DRV_MAX6900=m
CONFIG_RTC_DRV_RS5C372=m
CONFIG_RTC_DRV_ISL1208=m
# CONFIG_RTC_DRV_ISL12022 is not set
CONFIG_RTC_DRV_X1205=m
CONFIG_RTC_DRV_PCF8563=m
CONFIG_RTC_DRV_PCF8583=m
CONFIG_RTC_DRV_M41T80=m
# CONFIG_RTC_DRV_M41T80_WDT is not set
CONFIG_RTC_DRV_BQ32K=m
CONFIG_RTC_DRV_S35390A=m
CONFIG_RTC_DRV_FM3130=m
CONFIG_RTC_DRV_RX8581=m
CONFIG_RTC_DRV_RX8025=m

#
# SPI RTC drivers
#
CONFIG_RTC_DRV_M41T94=m
CONFIG_RTC_DRV_DS1305=m
CONFIG_RTC_DRV_DS1390=m
CONFIG_RTC_DRV_MAX6902=m
CONFIG_RTC_DRV_R9701=m
CONFIG_RTC_DRV_RS5C348=m
CONFIG_RTC_DRV_DS3234=m
CONFIG_RTC_DRV_PCF2123=m

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_DS1286=m
CONFIG_RTC_DRV_DS1511=m
CONFIG_RTC_DRV_DS1553=m
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_STK17TA8=m
CONFIG_RTC_DRV_M48T86=m
CONFIG_RTC_DRV_M48T35=m
CONFIG_RTC_DRV_M48T59=m
CONFIG_RTC_DRV_MSM6242=m
CONFIG_RTC_DRV_BQ4802=m
CONFIG_RTC_DRV_RP5C01=m
CONFIG_RTC_DRV_V3020=m
CONFIG_RTC_DRV_PCF50633=m

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
CONFIG_UIO=m
CONFIG_UIO_CIF=m
CONFIG_UIO_PDRV=m
CONFIG_UIO_PDRV_GENIRQ=m
CONFIG_UIO_AEC=m
CONFIG_UIO_SERCOS3=m
CONFIG_UIO_PCI_GENERIC=m
CONFIG_UIO_NETX=m
CONFIG_STAGING=y
# CONFIG_STAGING_EXCLUDE_BUILD is not set
# CONFIG_ET131X is not set
# CONFIG_USB_IP_COMMON is not set
# CONFIG_W35UND is not set
# CONFIG_PRISM2_USB is not set
# CONFIG_ECHO is not set
# CONFIG_BRCM80211 is not set
# CONFIG_COMEDI is not set
# CONFIG_ASUS_OLED is not set
# CONFIG_PANEL is not set
# CONFIG_R8187SE is not set
# CONFIG_RTL8192U is not set
# CONFIG_RTL8192E is not set
# CONFIG_R8712U is not set
# CONFIG_RTS_PSTOR is not set
# CONFIG_TRANZPORT is not set
# CONFIG_POHMELFS is not set
# CONFIG_IDE_PHISON is not set
# CONFIG_LINE6_USB is not set
# CONFIG_USB_SERIAL_QUATECH2 is not set
# CONFIG_USB_SERIAL_QUATECH_USB2 is not set
# CONFIG_VT6655 is not set
# CONFIG_VT6656 is not set
# CONFIG_VME_BUS is not set
# CONFIG_DX_SEP is not set
# CONFIG_IIO is not set
# CONFIG_XVMALLOC is not set
# CONFIG_ZRAM is not set
# CONFIG_WLAGS49_H2 is not set
# CONFIG_WLAGS49_H25 is not set
# CONFIG_FB_SM7XX is not set
# CONFIG_CRYSTALHD is not set
# CONFIG_FB_XGI is not set
# CONFIG_LIRC_STAGING is not set
CONFIG_MACH_NO_WESTBRIDGE=y
# CONFIG_USB_ENESTORAGE is not set
# CONFIG_BCM_WIMAX is not set
# CONFIG_FT1000 is not set

#
# Speakup console speech
#
CONFIG_SPEAKUP=m
CONFIG_SPEAKUP_SYNTH_ACNTSA=m
CONFIG_SPEAKUP_SYNTH_ACNTPC=m
CONFIG_SPEAKUP_SYNTH_APOLLO=m
CONFIG_SPEAKUP_SYNTH_AUDPTR=m
CONFIG_SPEAKUP_SYNTH_BNS=m
CONFIG_SPEAKUP_SYNTH_DECTLK=m
CONFIG_SPEAKUP_SYNTH_DECEXT=m
# CONFIG_SPEAKUP_SYNTH_DECPC is not set
CONFIG_SPEAKUP_SYNTH_DTLK=m
CONFIG_SPEAKUP_SYNTH_KEYPC=m
CONFIG_SPEAKUP_SYNTH_LTLK=m
CONFIG_SPEAKUP_SYNTH_SOFT=m
CONFIG_SPEAKUP_SYNTH_SPKOUT=m
CONFIG_SPEAKUP_SYNTH_TXPRT=m
CONFIG_SPEAKUP_SYNTH_DUMMY=m
# CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4 is not set

#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set

#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=m
CONFIG_EXT3_DEFAULTS_TO_ORDERED=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_EXT4_FS=m
CONFIG_EXT4_FS_XATTR=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD=m
# CONFIG_JBD_DEBUG is not set
CONFIG_JBD2=m
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=m
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_JFS_FS=m
CONFIG_JFS_POSIX_ACL=y
CONFIG_JFS_SECURITY=y
# CONFIG_JFS_DEBUG is not set
# CONFIG_JFS_STATISTICS is not set
CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
# CONFIG_XFS_DEBUG is not set
CONFIG_GFS2_FS=m
CONFIG_GFS2_FS_LOCKING_DLM=y
CONFIG_OCFS2_FS=m
CONFIG_OCFS2_FS_O2CB=m
CONFIG_OCFS2_FS_USERSPACE_CLUSTER=m
CONFIG_OCFS2_FS_STATS=y
CONFIG_OCFS2_DEBUG_MASKLOG=y
# CONFIG_OCFS2_DEBUG_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_NILFS2_FS=m
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
# CONFIG_FANOTIFY_ACCESS_PERMISSIONS is not set
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=m
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_GENERIC_ACL=y

#
# Caches
#
CONFIG_FSCACHE=m
CONFIG_FSCACHE_STATS=y
# CONFIG_FSCACHE_HISTOGRAM is not set
# CONFIG_FSCACHE_DEBUG is not set
# CONFIG_FSCACHE_OBJECT_LIST is not set
CONFIG_CACHEFILES=m
# CONFIG_CACHEFILES_DEBUG is not set
# CONFIG_CACHEFILES_HISTOGRAM is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="utf8"
CONFIG_NTFS_FS=m
# CONFIG_NTFS_DEBUG is not set
CONFIG_NTFS_RW=y

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=m
CONFIG_MISC_FILESYSTEMS=y
CONFIG_ADFS_FS=m
# CONFIG_ADFS_FS_RW is not set
CONFIG_AFFS_FS=m
CONFIG_ECRYPT_FS=m
CONFIG_HFS_FS=m
CONFIG_HFSPLUS_FS=m
CONFIG_BEFS_FS=m
# CONFIG_BEFS_DEBUG is not set
CONFIG_BFS_FS=m
CONFIG_EFS_FS=m
CONFIG_LOGFS=m
CONFIG_CRAMFS=y
CONFIG_SQUASHFS=m
CONFIG_SQUASHFS_XATTR=y
# CONFIG_SQUASHFS_LZO is not set
# CONFIG_SQUASHFS_XZ is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
CONFIG_VXFS_FS=m
CONFIG_MINIX_FS=m
CONFIG_OMFS_FS=m
# CONFIG_HPFS_FS is not set
CONFIG_QNX4FS_FS=m
CONFIG_ROMFS_FS=m
CONFIG_ROMFS_BACKED_BY_BLOCK=y
CONFIG_ROMFS_ON_BLOCK=y
# CONFIG_PSTORE is not set
CONFIG_SYSV_FS=m
CONFIG_UFS_FS=m
# CONFIG_UFS_FS_WRITE is not set
# CONFIG_UFS_DEBUG is not set
CONFIG_EXOFS_FS=m
# CONFIG_EXOFS_DEBUG is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
# CONFIG_NFS_V4_1 is not set
CONFIG_NFS_FSCACHE=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
# CONFIG_NFS_USE_NEW_IDMAPPER is not set
CONFIG_NFSD=m
CONFIG_NFSD_DEPRECATED=y
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_SUNRPC_XPRT_RDMA=m
CONFIG_RPCSEC_GSS_KRB5=m
CONFIG_CEPH_FS=m
CONFIG_CIFS=m
# CONFIG_CIFS_STATS is not set
CONFIG_CIFS_WEAK_PW_HASH=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
# CONFIG_CIFS_DEBUG2 is not set
CONFIG_CIFS_DFS_UPCALL=y
CONFIG_CIFS_FSCACHE=y
CONFIG_CIFS_ACL=y
CONFIG_CIFS_EXPERIMENTAL=y
CONFIG_NCP_FS=m
CONFIG_NCPFS_PACKET_SIGNING=y
CONFIG_NCPFS_IOCTL_LOCKING=y
CONFIG_NCPFS_STRONG=y
CONFIG_NCPFS_NFS_NS=y
CONFIG_NCPFS_OS2_NS=y
# CONFIG_NCPFS_SMALLDOS is not set
CONFIG_NCPFS_NLS=y
CONFIG_NCPFS_EXTRAS=y
CONFIG_CODA_FS=m
CONFIG_AFS_FS=m
# CONFIG_AFS_DEBUG is not set
CONFIG_AFS_FSCACHE=y
CONFIG_9P_FS=m
CONFIG_9P_FSCACHE=y
CONFIG_9P_FS_POSIX_ACL=y

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=m
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
CONFIG_DLM=m
CONFIG_DLM_DEBUG=y

#
# Kernel hacking
#
CONFIG_PRINTK_TIME=y
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
CONFIG_STRIP_ASM_SYMS=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_HARDLOCKUP_DETECTOR is not set
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
CONFIG_BOOT_PRINTK_DELAY=y
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_LKDTM is not set
# CONFIG_CPU_NOTIFIER_ERROR_INJECT is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_SAMPLES is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_DEBUG_RODATA is not set
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_TRUSTED_KEYS is not set
CONFIG_KEYS_DEBUG_PROC_KEYS=y
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
CONFIG_SECURITY_PATH=y
CONFIG_LSM_MMAP_MIN_ADDR=32768
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=0
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
CONFIG_SECURITY_TOMOYO=y
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_IMA is not set
CONFIG_DEFAULT_SECURITY_SELINUX=y
# CONFIG_DEFAULT_SECURITY_TOMOYO is not set
# CONFIG_DEFAULT_SECURITY_DAC is not set
CONFIG_DEFAULT_SECURITY="selinux"
CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_ASYNC_PQ=m
CONFIG_ASYNC_RAID6_RECOV=m
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_FIPS=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=m
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_PCRYPT=m
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_SEQIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_GHASH=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=m
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=m

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_HIFN_795X=m
CONFIG_CRYPTO_DEV_HIFN_795X_RNG=y
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_RAID6_PQ=m
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_LAST_BIT=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
CONFIG_CRC_T10DIF=m
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
CONFIG_AUDIT_GENERIC=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=m
CONFIG_LZO_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_BTREE=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CPU_RMAP=y
CONFIG_NLATTR=y
CONFIG_LRU_CACHE=m
CONFIG_AVERAGE=y

--bp/iNruPH9dso1Pn--
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From - Thu Nov 08 21:06:59 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: Bug#622997: Debian bug 622997
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To: Ben Hutchings <ben@decadent.org.uk>
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On Sat, 16 Apr 2011, Ben Hutchings wrote:

> If you can identify the compiler patches required, I can ask the Debian
> gcc maintainers to apply them.

gcc-4.4.6 is released and contains all parisc patches known to be relevant.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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On Sat, 2011-04-16 at 19:35 -0400, John David Anglin wrote: 
> On Sat, 16 Apr 2011, James Bottomley wrote:
> 
> > Strike that one ... I enabled USB in my 2.6.39-rc3 build and it inserts
> > the OHCI module and discovers the ports just fine.
> 
> Boot 2.6.39-rc3 fails for me with attached config.

I can't quite build it.  With gcc version 4.2.4 (Debian 4.2.4-6) I'm
getting an ICE:

net/wireless/reg.c: In function 'freq_reg_info_regd':
net/wireless/reg.c:645: internal compiler error: in expand_expr_real_1,
at expr.c:8744
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.2/README.Bugs>.
make[2]: *** [net/wireless/reg.o] Error 1

Plus there's a bug in my kernel code:

drivers/usb/host/xhci-pci.c: In function 'xhci_pci_setup':
drivers/usb/host/xhci-pci.c:61: error: implicit declaration of function
'kzalloc

If I correct for these (add missing slab.h include and disable wireless)
and build, the last message I see is

turn off boot console ttyB0

Which indicates it's got a problem with the console configuration (I
don't see any console registration for the DIVA serial port on ttyS1 in
the boot log).

James


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From - Thu Nov 08 21:06:59 2018
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> On Sat, 2011-04-16 at 19:35 -0400, John David Anglin wrote: 
> > On Sat, 16 Apr 2011, James Bottomley wrote:
> > 
> > > Strike that one ... I enabled USB in my 2.6.39-rc3 build and it inserts
> > > the OHCI module and discovers the ports just fine.
> > 
> > Boot 2.6.39-rc3 fails for me with attached config.
> 
> I can't quite build it.  With gcc version 4.2.4 (Debian 4.2.4-6) I'm
> getting an ICE:
> 
> net/wireless/reg.c: In function 'freq_reg_info_regd':
> net/wireless/reg.c:645: internal compiler error: in expand_expr_real_1,
> at expr.c:8744
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://gcc.gnu.org/bugs.html> for instructions.
> For Debian GNU/Linux specific bug reporting instructions,
> see <URL:file:///usr/share/doc/gcc-4.2/README.Bugs>.
> make[2]: *** [net/wireless/reg.o] Error 1

This is probably fixed as it doesn't occur with 
gcc version 4.5.3 20110101 (prerelease) [gcc-4_5-branch revision 168387] (GCC) .
GCC 4.2 and 4.3 are no longer maintained and there won't be any further
releases from these branches.

Without looking at the above, it's hard to tell whether the bug is a
middle-end or backend bug.  Many middle-end bugs are fixed in more recent
GCC versions.  Although newer versions may bring their own problems,
we can get help in fixing problems particularly if they are regressions. 

The asm delay slot bug affected all GCC versions.  I backported the fix to
the 4.3, 4.4 and 4.5 branches.  This is a problem in the kernel because of
the following:

** The __asm__ op below simple prevents gcc/ld from reordering
** instructions across the mb() "call".
*/
#define mb()            __asm__ __volatile__("":::"memory")     /* barrier() */

It's just a matter of chance whether a barrier ends up in the delay slot
of a branch in a critical location.

> Plus there's a bug in my kernel code:
> 
> drivers/usb/host/xhci-pci.c: In function 'xhci_pci_setup':
> drivers/usb/host/xhci-pci.c:61: error: implicit declaration of function
> 'kzalloc
> 
> If I correct for these (add missing slab.h include and disable wireless)

I had to add missing slab.h as well.  However, I didn't touch wireless
with 4.5.3.

> and build, the last message I see is
> 
> turn off boot console ttyB0
> 
> Which indicates it's got a problem with the console configuration (I
> don't see any console registration for the DIVA serial port on ttyS1 in
> the boot log).

Comparing the console output that I recorded for the debian kernel, I
see udev starts much earlier.  It only has the initial message from the
tg3 driver and SCSI subsystem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:59 2018
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On Sun, 2011-04-17 at 11:11 -0400, John David Anglin wrote:
> > On Sat, 2011-04-16 at 19:35 -0400, John David Anglin wrote: 
> > > On Sat, 16 Apr 2011, James Bottomley wrote:
> > > 
> > > > Strike that one ... I enabled USB in my 2.6.39-rc3 build and it inserts
> > > > the OHCI module and discovers the ports just fine.
> > > 
> > > Boot 2.6.39-rc3 fails for me with attached config.
> > 
> > I can't quite build it.  With gcc version 4.2.4 (Debian 4.2.4-6) I'm
> > getting an ICE:
> > 
> > net/wireless/reg.c: In function 'freq_reg_info_regd':
> > net/wireless/reg.c:645: internal compiler error: in expand_expr_real_1,
> > at expr.c:8744
> > Please submit a full bug report,
> > with preprocessed source if appropriate.
> > See <URL:http://gcc.gnu.org/bugs.html> for instructions.
> > For Debian GNU/Linux specific bug reporting instructions,
> > see <URL:file:///usr/share/doc/gcc-4.2/README.Bugs>.
> > make[2]: *** [net/wireless/reg.o] Error 1
> 
> This is probably fixed as it doesn't occur with 
> gcc version 4.5.3 20110101 (prerelease) [gcc-4_5-branch revision 168387] (GCC) .
> GCC 4.2 and 4.3 are no longer maintained and there won't be any further
> releases from these branches.
> 
> Without looking at the above, it's hard to tell whether the bug is a
> middle-end or backend bug.  Many middle-end bugs are fixed in more recent
> GCC versions.  Although newer versions may bring their own problems,
> we can get help in fixing problems particularly if they are regressions. 
> 
> The asm delay slot bug affected all GCC versions.  I backported the fix to
> the 4.3, 4.4 and 4.5 branches.  This is a problem in the kernel because of
> the following:
> 
> ** The __asm__ op below simple prevents gcc/ld from reordering
> ** instructions across the mb() "call".
> */
> #define mb()            __asm__ __volatile__("":::"memory")     /* barrier() */
> 
> It's just a matter of chance whether a barrier ends up in the delay slot
> of a branch in a critical location.

I'll redo optimisation on that one and see if I can avoid this.

> > Plus there's a bug in my kernel code:
> > 
> > drivers/usb/host/xhci-pci.c: In function 'xhci_pci_setup':
> > drivers/usb/host/xhci-pci.c:61: error: implicit declaration of function
> > 'kzalloc
> > 
> > If I correct for these (add missing slab.h include and disable wireless)
> 
> I had to add missing slab.h as well.  However, I didn't touch wireless
> with 4.5.3.
> 
> > and build, the last message I see is
> > 
> > turn off boot console ttyB0
> > 
> > Which indicates it's got a problem with the console configuration (I
> > don't see any console registration for the DIVA serial port on ttyS1 in
> > the boot log).
> 
> Comparing the console output that I recorded for the debian kernel, I
> see udev starts much earlier.  It only has the initial message from the
> tg3 driver and SCSI subsystem.

It's most likely a driver module that's getting loaded which is turned
off in the booting configuration ... finding it isn't going to be easy,
though ...

James


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From - Thu Nov 08 21:06:59 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Sun, 17 Apr 2011, James Bottomley wrote:

> > Comparing the console output that I recorded for the debian kernel, I
> > see udev starts much earlier.  It only has the initial message from the
> > tg3 driver and SCSI subsystem.
> 
> It's most likely a driver module that's getting loaded which is turned
> off in the booting configuration ... finding it isn't going to be easy,
> though ...

Yup.  I have reenabled IPV6 and USB and my system still boots.  There
are some nfs problems with IPV6 but that's probably a config issue.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, 2011-04-17 at 10:23 -0500, James Bottomley wrote:
> It's most likely a driver module that's getting loaded which is turned
> off in the booting configuration ... finding it isn't going to be easy,
> though ...

Finally got a build (had to swap out -Os for -O2).

I traced the module loads and successful inits and found it; it's
pata_cmd64x  ... it loads but never returns from init.  I bet it's
trying to poke into ISA space which causes the HPMC.

Removing this one module from the system allows it to boot again.

I'd suggest just disabling in the parisc config for now.  Using an ATA
based CD/DVD instead of a SCSI one is a very recent thing.  I'll see if
I can get it working, but ATA controllers tend to be somewhat nasty and
x86 specific ...

James


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Subject: Re: Bug#622997: Debian bug 622997
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On Sun, 2011-04-17 at 14:28 -0500, James Bottomley wrote:
> On Sun, 2011-04-17 at 10:23 -0500, James Bottomley wrote:
> > It's most likely a driver module that's getting loaded which is turned
> > off in the booting configuration ... finding it isn't going to be easy,
> > though ...
>=20
> Finally got a build (had to swap out -Os for -O2).
>=20
> I traced the module loads and successful inits and found it; it's
> pata_cmd64x  ... it loads but never returns from init.  I bet it's
> trying to poke into ISA space which causes the HPMC.
>=20
> Removing this one module from the system allows it to boot again.
[...]

We also had a recent report that this driver is also bust on some sparc
systems.  We could swap back to cmd64x on these architectures but I
would rather get pata_cmd64x fixed.

Ben.

--=20
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.

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From - Thu Nov 08 21:06:59 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Sun, 2011-04-17 at 20:37 +0100, Ben Hutchings wrote:
> On Sun, 2011-04-17 at 14:28 -0500, James Bottomley wrote:
> > I traced the module loads and successful inits and found it; it's
> > pata_cmd64x  ... it loads but never returns from init.  I bet it's
> > trying to poke into ISA space which causes the HPMC.
> > 
> > Removing this one module from the system allows it to boot again.
> [...]
> 
> We also had a recent report that this driver is also bust on some sparc
> systems.  We could swap back to cmd64x on these architectures but I
> would rather get pata_cmd64x fixed.

Well, I've got a working pata_cm64x (and now a working CD drive).

The specific issue on parisc (and probably sparc) is that we're using
this siimage chip hard wired to a single DVD drive.  We have no use for
a secondary port, so there isn't one.  The registers for the secondary
port are pointing off into empty space.  When libata-sff tries to touch
the secondary port, we get an instant High Priority Machine Check
because on most non-x86 systems, it's a fault to touch non-responding
memory.

I got it to work by making libata-sff only probe a single port.  Now,
here's the problem: the libata-sff driver is hardwired to probe two
ports, so it will require major surgery to check dynamically how many
ports there are ... and the second problem is that I don't even know how
to check this.  I'll ask about this on linux-ide.

James


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On Sun, 17 Apr 2011, James Bottomley wrote:

> On Sun, 2011-04-17 at 10:23 -0500, James Bottomley wrote:
> > It's most likely a driver module that's getting loaded which is turned
> > off in the booting configuration ... finding it isn't going to be easy,
> > though ...
> 
> Finally got a build (had to swap out -Os for -O2).

Didn't need this with the gcc 4.5.3 snapshot that I mentioned previously.

> I traced the module loads and successful inits and found it; it's
> pata_cmd64x  ... it loads but never returns from init.  I bet it's
> trying to poke into ISA space which causes the HPMC.
> 
> Removing this one module from the system allows it to boot again.

Confirm that removing this module restores boot.

This is excellent detective work.  If I might ask, how did you trace
the module loads and successful inits?

Thanks,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:06:59 2018
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On Sun, 2011-04-17 at 21:25 -0400, John David Anglin wrote:
> This is excellent detective work.  If I might ask, how did you trace
> the module loads and successful inits?

Heh, you're expecting me to name magic tracing tools?  Well (shuffles
feet) I just put printks in kernel/modules.c to do it.  It's basically
impossible to trace a boot problem like this any other way, because we
don't have enough of the system up to use any tools.

James


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From - Thu Nov 08 21:06:59 2018
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On Sun, Apr 17, 2011 at 09:25:19PM -0400, John David Anglin wrote:
...
> Confirm that removing this module restores boot.
> 
> This is excellent detective work.  If I might ask, how did you trace
> the module loads and successful inits?

Dave,
Besides hacking in printk's, often "initcall_debug" kernel parameter is enough
narrow down which module is hanging or crashing the system.

hth,
grant

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From - Thu Nov 08 21:07:00 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ide
Subject: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on boot on
 parisc
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currently libata-sff is completely ignoring the enabled/disabled status
of the interfaces.  This is a real problem on parisc because if you
touch a non responding memory area (i.e. a disabled interface) you crash
the box.

Fix this up by restoring the enablebits logic to the pata_cmd64x driver.
To do this, libata-sff has to be modified not to probe both ports if we
don't have them.  This is done by reintroducing IDE_HFLAG_SINGLE flag as
ATA_HOST_SFF_SINGLE_PORT which drivers can use to condition libata-sff
port probing.

James

---

James Bottomley (2):
  libata-sff: remove hardcoded requirement for two ports
  pata_cmd64x: fix crash on boot with disabled secondary port

 drivers/ata/libata-sff.c  |   75 ++++++++++++++++++++++++++++++++------------
 drivers/ata/pata_cmd64x.c |   22 +++++++++++--
 include/linux/libata.h    |    1 +
 3 files changed, 74 insertions(+), 24 deletions(-)

-- 
1.7.4.1



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From - Thu Nov 08 21:07:00 2018
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The two port requirement in libata-sff is causing crashes on non-x86
systems which are wired up with the second port disabled.

Fix libata-sff to key of a new host flag ATA_HOST_SFF_SINGLE_PORT
which tells it only to probe the primary port of the host.  This
prevents the crash by preventing the disabled secondary registers from
being touched.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/ata/libata-sff.c |   75 +++++++++++++++++++++++++++++++++-------------
 include/linux/libata.h   |    1 +
 2 files changed, 55 insertions(+), 21 deletions(-)

diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index f8380ce..f0aa7db 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -2296,7 +2296,7 @@ int ata_pci_sff_init_host(struct ata_host *host)
 	int i, rc;
 
 	/* request, iomap BARs and init port addresses accordingly */
-	for (i = 0; i < 2; i++) {
+	for (i = 0; i < host->n_ports; i++) {
 		struct ata_port *ap = host->ports[i];
 		int base = i * 2;
 		void __iomem * const *iomap;
@@ -2349,10 +2349,11 @@ int ata_pci_sff_init_host(struct ata_host *host)
 EXPORT_SYMBOL_GPL(ata_pci_sff_init_host);
 
 /**
- *	ata_pci_sff_prepare_host - helper to prepare PCI PIO-only SFF ATA host
+ *	ata_pci_sff_prepare_host_ports - helper to prepare PCI PIO-only SFF ATA host
  *	@pdev: target PCI device
  *	@ppi: array of port_info, must be enough for two ports
  *	@r_host: out argument for the initialized ATA host
+ *	@ports: number of ports in the host
  *
  *	Helper to allocate PIO-only SFF ATA host for @pdev, acquire
  *	all PCI resources and initialize it accordingly in one go.
@@ -2363,9 +2364,9 @@ EXPORT_SYMBOL_GPL(ata_pci_sff_init_host);
  *	RETURNS:
  *	0 on success, -errno otherwise.
  */
-int ata_pci_sff_prepare_host(struct pci_dev *pdev,
-			     const struct ata_port_info * const *ppi,
-			     struct ata_host **r_host)
+static int ata_pci_sff_prepare_host_ports(struct pci_dev *pdev,
+					  const struct ata_port_info * const *ppi,
+					  struct ata_host **r_host, int nports)
 {
 	struct ata_host *host;
 	int rc;
@@ -2373,7 +2374,7 @@ int ata_pci_sff_prepare_host(struct pci_dev *pdev,
 	if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL))
 		return -ENOMEM;
 
-	host = ata_host_alloc_pinfo(&pdev->dev, ppi, 2);
+	host = ata_host_alloc_pinfo(&pdev->dev, ppi, nports);
 	if (!host) {
 		dev_printk(KERN_ERR, &pdev->dev,
 			   "failed to allocate ATA host\n");
@@ -2393,6 +2394,27 @@ err_out:
 	devres_release_group(&pdev->dev, NULL);
 	return rc;
 }
+
+/**
+ *	ata_pci_sff_prepare_host - helper to prepare PCI PIO-only SFF ATA host
+ *	@pdev: target PCI device
+ *	@ppi: array of port_info, must be enough for two ports
+ *	@r_host: out argument for the initialized ATA host
+ *
+ *	Helper to allocate PIO-only SFF ATA host for @pdev, acquire
+ *	all PCI resources and initialize it accordingly in one go.
+ *
+ *	LOCKING:
+ *	Inherited from calling layer (may sleep).
+ *
+ *	RETURNS:
+ *	0 on success, -errno otherwise.
+ */
+int ata_pci_sff_prepare_host(struct pci_dev *pdev,
+			     const struct ata_port_info * const *ppi,
+			     struct ata_host **r_host) {
+	return ata_pci_sff_prepare_host_ports(pdev, ppi, r_host, 2);
+}
 EXPORT_SYMBOL_GPL(ata_pci_sff_prepare_host);
 
 /**
@@ -2447,13 +2469,15 @@ int ata_pci_sff_activate_host(struct ata_host *host,
 		return -ENOMEM;
 
 	if (!legacy_mode && pdev->irq) {
+		int i;
+
 		rc = devm_request_irq(dev, pdev->irq, irq_handler,
 				      IRQF_SHARED, drv_name, host);
 		if (rc)
 			goto out;
 
-		ata_port_desc(host->ports[0], "irq %d", pdev->irq);
-		ata_port_desc(host->ports[1], "irq %d", pdev->irq);
+		for (i = 0; i < host->n_ports; i++)
+			ata_port_desc(host->ports[i], "irq %d", pdev->irq);
 	} else if (legacy_mode) {
 		if (!ata_port_is_dummy(host->ports[0])) {
 			rc = devm_request_irq(dev, ATA_PRIMARY_IRQ(pdev),
@@ -2466,7 +2490,7 @@ int ata_pci_sff_activate_host(struct ata_host *host,
 				      ATA_PRIMARY_IRQ(pdev));
 		}
 
-		if (!ata_port_is_dummy(host->ports[1])) {
+		if (host->n_ports > 1 && !ata_port_is_dummy(host->ports[1])) {
 			rc = devm_request_irq(dev, ATA_SECONDARY_IRQ(pdev),
 					      irq_handler, IRQF_SHARED,
 					      drv_name, host);
@@ -2532,6 +2556,7 @@ int ata_pci_sff_init_one(struct pci_dev *pdev,
 	const struct ata_port_info *pi;
 	struct ata_host *host = NULL;
 	int rc;
+	int nports = (hflag & ATA_HOST_SFF_SINGLE_PORT) ? 1 : 2;
 
 	DPRINTK("ENTER\n");
 
@@ -2550,7 +2575,7 @@ int ata_pci_sff_init_one(struct pci_dev *pdev,
 		goto out;
 
 	/* prepare and activate SFF host */
-	rc = ata_pci_sff_prepare_host(pdev, ppi, &host);
+	rc = ata_pci_sff_prepare_host_ports(pdev, ppi, &host, nports);
 	if (rc)
 		goto out;
 	host->private_data = host_priv;
@@ -3162,7 +3187,7 @@ static void ata_bmdma_nodma(struct ata_host *host, const char *reason)
 	dev_printk(KERN_ERR, host->dev, "BMDMA: %s, falling back to PIO\n",
 		   reason);
 
-	for (i = 0; i < 2; i++) {
+	for (i = 0; i < host->n_ports; i++) {
 		host->ports[i]->mwdma_mask = 0;
 		host->ports[i]->udma_mask = 0;
 	}
@@ -3213,7 +3238,7 @@ void ata_pci_bmdma_init(struct ata_host *host)
 	}
 	host->iomap = pcim_iomap_table(pdev);
 
-	for (i = 0; i < 2; i++) {
+	for (i = 0; i < host->n_ports; i++) {
 		struct ata_port *ap = host->ports[i];
 		void __iomem *bmdma = host->iomap[4] + 8 * i;
 
@@ -3231,6 +3256,20 @@ void ata_pci_bmdma_init(struct ata_host *host)
 }
 EXPORT_SYMBOL_GPL(ata_pci_bmdma_init);
 
+static int ata_pci_bmdma_prepare_host_ports(struct pci_dev *pdev,
+					    const struct ata_port_info * const * ppi,
+					    struct ata_host **r_host, int nports)
+{
+	int rc;
+
+	rc = ata_pci_sff_prepare_host_ports(pdev, ppi, r_host, nports);
+	if (rc)
+		return rc;
+
+	ata_pci_bmdma_init(*r_host);
+	return 0;
+}
+
 /**
  *	ata_pci_bmdma_prepare_host - helper to prepare PCI BMDMA ATA host
  *	@pdev: target PCI device
@@ -3250,14 +3289,7 @@ int ata_pci_bmdma_prepare_host(struct pci_dev *pdev,
 			       const struct ata_port_info * const * ppi,
 			       struct ata_host **r_host)
 {
-	int rc;
-
-	rc = ata_pci_sff_prepare_host(pdev, ppi, r_host);
-	if (rc)
-		return rc;
-
-	ata_pci_bmdma_init(*r_host);
-	return 0;
+	return ata_pci_bmdma_prepare_host_ports(pdev, ppi, r_host, 2);
 }
 EXPORT_SYMBOL_GPL(ata_pci_bmdma_prepare_host);
 
@@ -3287,6 +3319,7 @@ int ata_pci_bmdma_init_one(struct pci_dev *pdev,
 	const struct ata_port_info *pi;
 	struct ata_host *host = NULL;
 	int rc;
+	int nports = (hflags & ATA_HOST_SFF_SINGLE_PORT) ? 1 : 2;
 
 	DPRINTK("ENTER\n");
 
@@ -3305,7 +3338,7 @@ int ata_pci_bmdma_init_one(struct pci_dev *pdev,
 		goto out;
 
 	/* prepare and activate BMDMA host */
-	rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host);
+	rc = ata_pci_bmdma_prepare_host_ports(pdev, ppi, &host, nports);
 	if (rc)
 		goto out;
 	host->private_data = host_priv;
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 7f675aa..554b0d2 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -238,6 +238,7 @@ enum {
 	ATA_HOST_SIMPLEX	= (1 << 0),	/* Host is simplex, one DMA channel per host only */
 	ATA_HOST_STARTED	= (1 << 1),	/* Host started */
 	ATA_HOST_PARALLEL_SCAN	= (1 << 2),	/* Ports on this host can be scanned in parallel */
+	ATA_HOST_SFF_SINGLE_PORT = (1 << 3),	/* SFF interface should only probe one port not two */
 
 	/* bits 24:31 of host->flags are reserved for LLD specific flags */
 
-- 
1.7.4.1



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From - Thu Nov 08 21:07:00 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ide,gmane.linux.ports.parisc
Subject: [PATCH 2/2] pata_cmd64x: fix crash on boot with disabled secondary
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On non-x86 systems, probing a port which is listed as disabled can
cause an immediate crash.  Fix the driver not to do this by porting
the enablebits check from the IDE driver and setting the
ATA_HOST_SFF_SINGLE_PORT flag if only the primary is enabled.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 drivers/ata/pata_cmd64x.c |   22 +++++++++++++++++++---
 1 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
index 905ff76..aa71a13 100644
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -41,6 +41,9 @@
 enum {
 	CFR 		= 0x50,
 		CFR_INTR_CH0  = 0x04,
+	ENPORT		= 0x51,
+		ENPORT_PRIMARY   = 0x04,
+		ENPORT_SECONDARY = 0x08,
 	CMDTIM 		= 0x52,
 	ARTTIM0 	= 0x53,
 	DRWTIM0 	= 0x54,
@@ -329,8 +332,8 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 		}
 	};
 	const struct ata_port_info *ppi[] = { &cmd_info[id->driver_data], NULL };
-	u8 mrdmode;
-	int rc;
+	u8 mrdmode, reg;
+	int rc, hflags = 0;
 
 	rc = pcim_enable_device(pdev);
 	if (rc)
@@ -354,6 +357,19 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	mrdmode |= 0x02;	/* Memory read line enable */
 	pci_write_config_byte(pdev, MRDMODE, mrdmode);
 
+	/* check for enabled ports */
+	pci_read_config_byte(pdev, ENPORT, &reg);
+	/* the cm643 primary port is always enabled */
+	if (id->driver_data != 0 && !(reg & ENPORT_PRIMARY)) {
+		dev_printk(KERN_ERR, &pdev->dev, "Primary port is disabled; detaching\n");
+		return -ENODEV;
+		
+	}
+	if (!(reg & ENPORT_SECONDARY)) {
+		dev_printk(KERN_NOTICE, &pdev->dev, "Secondary port is disabled\n");
+		hflags |= ATA_HOST_SFF_SINGLE_PORT;
+	}
+
 	/* Force PIO 0 here.. */
 
 	/* PPC specific fixup copied from old driver */
@@ -361,7 +377,7 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	pci_write_config_byte(pdev, UDIDETCR0, 0xF0);
 #endif
 
-	return ata_pci_bmdma_init_one(pdev, ppi, &cmd64x_sht, NULL, 0);
+	return ata_pci_bmdma_init_one(pdev, ppi, &cmd64x_sht, NULL, hflags);
 }
 
 #ifdef CONFIG_PM
-- 
1.7.4.1



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Subject: Re: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on boot
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On Mon, 18 Apr 2011 13:42:27 -0500
James Bottomley <James.Bottomley@HansenPartnership.com> wrote:

> currently libata-sff is completely ignoring the enabled/disabled status
> of the interfaces. 

Yes - it makes some machines work rather better because the BIOSes
sometimes mess up the registers. It wad a *deliberate* decision not to
port it over and as a result stuff works that failed before. Windows
drivers clearly ignore the bits in many cases.

In addition
- Your patch seems to be applying the enable bits apply in native mode
  (they don't generally)
- You seem to be assuming either first or both ports enabled, secondly
  only is just as valid

This matters for CMD64x as several 64x devices are found on hotpluggable
'docking stations' using a PCI split bridge. Only doing the checks for
chips in legacy mode should avoid that problem. In native mode the PCI
bars are the only register bases used so the problem doesn't arise.

The patch seems to be broken for all these cases and also incredibly
invasive given you can just pass a dummy port in as one of
your struct ata_port_info * pointers to ata_pci_dma_init_one()

You shouldn't need to touch a single line of the core libata code,
although it might be the best way of doing it. Either way if you do the
number of ports needs to be a bitmask instead and you need to leave
native mode alone.

Alan
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From - Thu Nov 08 21:07:00 2018
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Subject: Re: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on
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On Mon, 2011-04-18 at 20:52 +0100, Alan Cox wrote:
> On Mon, 18 Apr 2011 13:42:27 -0500
> James Bottomley <James.Bottomley@HansenPartnership.com> wrote:
> 
> > currently libata-sff is completely ignoring the enabled/disabled status
> > of the interfaces. 
> 
> Yes - it makes some machines work rather better because the BIOSes
> sometimes mess up the registers. It wad a *deliberate* decision not to
> port it over and as a result stuff works that failed before. Windows
> drivers clearly ignore the bits in many cases.

Well your deliberate decision is crashing my box on boot.  That makes
this a regression from the IDE cmd64x driver. I hear indirectly there's
a similar problem on sparc.

> In addition
> - Your patch seems to be applying the enable bits apply in native mode
>   (they don't generally)
> - You seem to be assuming either first or both ports enabled, secondly
>   only is just as valid

Yes, I know ... but that config is broken today and a fix, given the
hardcoded assumptions in libata-sff, would be more invasive (and not
really of interest to the crash problem).

> This matters for CMD64x as several 64x devices are found on hotpluggable
> 'docking stations' using a PCI split bridge. Only doing the checks for
> chips in legacy mode should avoid that problem. In native mode the PCI
> bars are the only register bases used so the problem doesn't arise.

No, that analysis is wrong: Parisc (and actually presumably every
non-x86) doesn't use legacy mode.  The bars are all wired up (I posted
the original lspci output showing this).  The problem is that when you
try to prod the registers behind the secondary bar we get an instant
crash because the memory doesn't respond ... I'm assuming the secondary
bar isn't actually wired up to the chip.

> The patch seems to be broken for all these cases and also incredibly
> invasive given you can just pass a dummy port in as one of
> your struct ata_port_info * pointers to ata_pci_dma_init_one()

You mean in ata_pci_bmdma_init_one()?  yes, that might work ... I still
need to know how to detect this.

> You shouldn't need to touch a single line of the core libata code,
> although it might be the best way of doing it. Either way if you do the
> number of ports needs to be a bitmask instead and you need to leave
> native mode alone.

The core libata code looked broken in the assumption that it had to poke
a double register pair for sff mode (the hard coded loop over two
ports) ... this is what won't work on non-x86 boxes.  

James


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Subject: Re: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Mon, 18 Apr 2011 15:08:07 -0500

> On Mon, 2011-04-18 at 20:52 +0100, Alan Cox wrote:
>> On Mon, 18 Apr 2011 13:42:27 -0500
>> James Bottomley <James.Bottomley@HansenPartnership.com> wrote:
>> 
>> > currently libata-sff is completely ignoring the enabled/disabled status
>> > of the interfaces. 
>> 
>> Yes - it makes some machines work rather better because the BIOSes
>> sometimes mess up the registers. It wad a *deliberate* decision not to
>> port it over and as a result stuff works that failed before. Windows
>> drivers clearly ignore the bits in many cases.
> 
> Well your deliberate decision is crashing my box on boot.  That makes
> this a regression from the IDE cmd64x driver. I hear indirectly there's
> a similar problem on sparc.

Yep, similar problems exist on sparc64, bus errors.
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Subject: Re: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on
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On Mon, 2011-04-18 at 20:52 +0100, Alan Cox wrote:
> You shouldn't need to touch a single line of the core libata code,
> although it might be the best way of doing it.

So how about this, using the dummy port info mechanism.  I get a
spurious ata2: DUMMY message, but I suppose libata people are used to
that.  I still have to fix libata to prevent spurious irq information,
but that's cosmetic.

James

---

diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index f8380ce..b1b926c 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -2447,13 +2447,18 @@ int ata_pci_sff_activate_host(struct ata_host *host,
 		return -ENOMEM;
 
 	if (!legacy_mode && pdev->irq) {
+		int i;
+
 		rc = devm_request_irq(dev, pdev->irq, irq_handler,
 				      IRQF_SHARED, drv_name, host);
 		if (rc)
 			goto out;
 
-		ata_port_desc(host->ports[0], "irq %d", pdev->irq);
-		ata_port_desc(host->ports[1], "irq %d", pdev->irq);
+		for (i = 0; i < 2; i++) {
+			if (ata_port_is_dummy(host->ports[i]))
+				continue;
+			ata_port_desc(host->ports[i], "irq %d", pdev->irq);
+		}
 	} else if (legacy_mode) {
 		if (!ata_port_is_dummy(host->ports[0])) {
 			rc = devm_request_irq(dev, ATA_PRIMARY_IRQ(pdev),
diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
index 905ff76..10dabe9 100644
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -41,6 +41,9 @@
 enum {
 	CFR 		= 0x50,
 		CFR_INTR_CH0  = 0x04,
+	ENPORT		= 0x51,
+		ENPORT_PRIMARY   = 0x04,
+		ENPORT_SECONDARY = 0x08,
 	CMDTIM 		= 0x52,
 	ARTTIM0 	= 0x53,
 	DRWTIM0 	= 0x54,
@@ -328,8 +331,12 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 			.port_ops = &cmd648_port_ops
 		}
 	};
-	const struct ata_port_info *ppi[] = { &cmd_info[id->driver_data], NULL };
-	u8 mrdmode;
+	const struct ata_port_info *ppi[] = { 
+		&cmd_info[id->driver_data],
+		&cmd_info[id->driver_data],
+		NULL
+	};
+	u8 mrdmode, reg;
 	int rc;
 
 	rc = pcim_enable_device(pdev);
@@ -354,6 +361,19 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	mrdmode |= 0x02;	/* Memory read line enable */
 	pci_write_config_byte(pdev, MRDMODE, mrdmode);
 
+	/* check for enabled ports */
+	pci_read_config_byte(pdev, ENPORT, &reg);
+	/* the cm643 primary port is always enabled */
+	if (id->driver_data != 0 && !(reg & ENPORT_PRIMARY)) {
+		dev_printk(KERN_ERR, &pdev->dev, "Primary port is disabled; detaching\n");
+		ppi[0] = &ata_dummy_port_info;
+		
+	}
+	if (!(reg & ENPORT_SECONDARY)) {
+		dev_printk(KERN_NOTICE, &pdev->dev, "Secondary port is disabled\n");
+		ppi[1] = &ata_dummy_port_info;
+	}
+
 	/* Force PIO 0 here.. */
 
 	/* PPC specific fixup copied from old driver */


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> Well your deliberate decision is crashing my box on boot.  That makes
> this a regression from the IDE cmd64x driver. I hear indirectly there's
> a similar problem on sparc.

Sure - I'm not saying there isn't a problem just cautioning that there is
more to fixing it than blindly adding checks. If you simply check the
fields you break the split bridge boxes on x86. They aren't very common
these days but they probably outnumber PA-RISC Linux users 8)

> No, that analysis is wrong: Parisc (and actually presumably every
> non-x86) doesn't use legacy mode.  The bars are all wired up (I posted
> the original lspci output showing this).  The problem is that when you
> try to prod the registers behind the secondary bar we get an instant
> crash because the memory doesn't respond ... I'm assuming the secondary
> bar isn't actually wired up to the chip.

Then your PCI configuration is faulty - no ?

I'd have thought the best way to fix that would be a PCI quirk for the
platform. However if it's multiple non x86 platforms being hit then the
driver probably needs the smarts to cope with this weird wiring.

> > The patch seems to be broken for all these cases and also incredibly
> > invasive given you can just pass a dummy port in as one of
> > your struct ata_port_info * pointers to ata_pci_dma_init_one()
> 
> You mean in ata_pci_bmdma_init_one()?  yes, that might work ... I still
> need to know how to detect this.
> 
> > You shouldn't need to touch a single line of the core libata code,
> > although it might be the best way of doing it. Either way if you do the
> > number of ports needs to be a bitmask instead and you need to leave
> > native mode alone.
> 
> The core libata code looked broken in the assumption that it had to poke
> a double register pair for sff mode (the hard coded loop over two
> ports) ... this is what won't work on non-x86 boxes.  

Worked implementation example: drivers/ata/pata_via.c - see the use of
VIA_IDFLAG_SINGLE

I think that will do what you need ?

Alan

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>	ata_port_desc(host->ports[i], "irq %d", pdev->irq);
> +		}
>  	} else if (legacy_mode) {
>  		if (!ata_port_is_dummy(host->ports[0])) {
>  			rc = devm_request_irq(dev, ATA_PRIMARY_IRQ(pdev),

This bit looks fine - in fact it's a nice clean up anyway

> +	}
> +	if (!(reg & ENPORT_SECONDARY)) {
> +		dev_printk(KERN_NOTICE, &pdev->dev, "Secondary port is disabled\n");
> +		ppi[1] = &ata_dummy_port_info;
> +	}

And you just broke split bridge setups. Also need to check if the bits
are valid for this chipset in native mode officialy - Sergei probably
knows the answer to that.

We can detect the Mobility electronics split bridges at least (and I
suspect they are the only 'common' CMD64x hot plug device indeed possibly
the only one) because the parent bridge of the CMD64x will have a PCI
vendor id of 0x14f2 and a device id 0x0001, 0x0002, or 0x0120.


Alan
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On Mon 18-04-11 13:56:37, Andrew Morton wrote:
> On Mon, 18 Apr 2011 12:01:31 +0200
> Michal Hocko <mhocko@suse.cz> wrote:
> 
> > Currently we have expand_upwards exported while expand_downwards is
> > accessible only via expand_stack or expand_stack_downwards.
> > 
> > check_stack_guard_page is a nice example of the asymmetry. It uses
> > expand_stack for VM_GROWSDOWN while expand_upwards is called for
> > VM_GROWSUP case.
> > 
> > Let's clean this up by exporting both functions and make those name
> > consistent. Let's use expand_stack_{upwards,downwards} so that we are
> > explicit about stack manipulation in the name. expand_stack_downwards
> > has to be defined for both CONFIG_STACK_GROWS{UP,DOWN} because
> > get_arg_page calls the downwards version in the early process
> > initialization phase for growsup configuration.
> 
> Has this patch been tested on any stack-grows-upwards architecture?

The only one I can find in the tree is parisc and I do not have access
to any such machine. Maybe someone on the list (CCed) can help with
testing the patch bellow? Nevertheless, the patch doesn't change growsup
case. It just renames functions and exports growsdown.

IA64 which grows upwards only for registers still needs a fix because of
the rename, though. I'm sorry, I must have missed it in the grep output
before. No other arch specific code uses expand_{down,up}wards directly.

Changes since v2
 - fix compilation error on ia64
Changes since v1
 - fixed expand_downwards case for CONFIG_STACK_GROWSUP in get_arg_page.
 - rename expand_{downwards,upwards} -> expand_stack_{downwards,upwards}
--- 
>From 091cf27fe9fad875bc7f6cdbb8206c617b06fc7b Mon Sep 17 00:00:00 2001
From: Michal Hocko <mhocko@suse.cz>
Date: Fri, 15 Apr 2011 14:56:26 +0200
Subject: [PATCH] mm: make expand_downwards symmetrical to expand_upwards

Currently we have expand_upwards exported while expand_downwards is
accessible only via expand_stack or expand_stack_downwards.

check_stack_guard_page is a nice example of the asymmetry. It uses
expand_stack for VM_GROWSDOWN while expand_upwards is called for
VM_GROWSUP case.

Let's clean this up by exporting both functions and make those name
consistent. Let's use expand_stack_{upwards,downwards} so that we are
explicit about stack manipulation in the name. expand_stack_downwards
has to be defined for both CONFIG_STACK_GROWS{UP,DOWN} because
get_arg_page calls the downwards version in the early process
initialization phase for growsup configuration.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
---
 arch/ia64/mm/fault.c |    2 +-
 include/linux/mm.h   |   13 ++++++++-----
 mm/memory.c          |    4 ++--
 mm/mmap.c            |   13 ++++---------
 4 files changed, 15 insertions(+), 17 deletions(-)

diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index 0799fea..aebff8a 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -197,7 +197,7 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re
 		 */
 		if (address > vma->vm_end + PAGE_SIZE - sizeof(long))
 			goto bad_area;
-		if (expand_upwards(vma, address))
+		if (expand_stack_upwards(vma, address))
 			goto bad_area;
 	}
 	goto good_area;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 692dbae..17f9b86 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1494,15 +1494,18 @@ unsigned long ra_submit(struct file_ra_state *ra,
 			struct address_space *mapping,
 			struct file *filp);
 
-/* Do stack extension */
+/* Generic expand stack which grows the stack according to GROWS{UP,DOWN} */
 extern int expand_stack(struct vm_area_struct *vma, unsigned long address);
+
+/* CONFIG_STACK_GROWSUP still needs to to grow downwards at some places */
+extern int expand_stack_downwards(struct vm_area_struct *vma,
+		unsigned long address);
 #if VM_GROWSUP
-extern int expand_upwards(struct vm_area_struct *vma, unsigned long address);
+extern int expand_stack_upwards(struct vm_area_struct *vma,
+		unsigned long address);
 #else
-  #define expand_upwards(vma, address) do { } while (0)
+  #define expand_stack_upwards(vma, address) do { } while (0)
 #endif
-extern int expand_stack_downwards(struct vm_area_struct *vma,
-				  unsigned long address);
 
 /* Look up the first VMA which satisfies  addr < vm_end,  NULL if none. */
 extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long addr);
diff --git a/mm/memory.c b/mm/memory.c
index ce22a25..ba5b4d8 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2969,7 +2969,7 @@ static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned lo
 		if (prev && prev->vm_end == address)
 			return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM;
 
-		expand_stack(vma, address - PAGE_SIZE);
+		expand_stack_downwards(vma, address - PAGE_SIZE);
 	}
 	if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) {
 		struct vm_area_struct *next = vma->vm_next;
@@ -2978,7 +2978,7 @@ static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned lo
 		if (next && next->vm_start == address + PAGE_SIZE)
 			return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM;
 
-		expand_upwards(vma, address + PAGE_SIZE);
+		expand_stack_upwards(vma, address + PAGE_SIZE);
 	}
 	return 0;
 }
diff --git a/mm/mmap.c b/mm/mmap.c
index e27e0cf..29c68b0 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1731,7 +1731,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
  * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
  * vma is the last one with address > vma->vm_end.  Have to extend vma.
  */
-int expand_upwards(struct vm_area_struct *vma, unsigned long address)
+int expand_stack_upwards(struct vm_area_struct *vma, unsigned long address)
 {
 	int error;
 
@@ -1782,7 +1782,7 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 /*
  * vma is the first one with address < vma->vm_start.  Have to extend vma.
  */
-static int expand_downwards(struct vm_area_struct *vma,
+int expand_stack_downwards(struct vm_area_struct *vma,
 				   unsigned long address)
 {
 	int error;
@@ -1829,15 +1829,10 @@ static int expand_downwards(struct vm_area_struct *vma,
 	return error;
 }
 
-int expand_stack_downwards(struct vm_area_struct *vma, unsigned long address)
-{
-	return expand_downwards(vma, address);
-}
-
 #ifdef CONFIG_STACK_GROWSUP
 int expand_stack(struct vm_area_struct *vma, unsigned long address)
 {
-	return expand_upwards(vma, address);
+	return expand_stack_upwards(vma, address);
 }
 
 struct vm_area_struct *
@@ -1859,7 +1854,7 @@ find_extend_vma(struct mm_struct *mm, unsigned long addr)
 #else
 int expand_stack(struct vm_area_struct *vma, unsigned long address)
 {
-	return expand_downwards(vma, address);
+	return expand_stack_downwards(vma, address);
 }
 
 struct vm_area_struct *
-- 
1.7.4.1

-- 
Michal Hocko
SUSE Labs
SUSE LINUX s.r.o.
Lihovarska 1060/12
190 00 Praha 9    
Czech Republic

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On Mon, 2011-04-18 at 22:20 +0100, Alan Cox wrote:
> We can detect the Mobility electronics split bridges at least (and I
> suspect they are the only 'common' CMD64x hot plug device indeed possibly
> the only one) because the parent bridge of the CMD64x will have a PCI
> vendor id of 0x14f2 and a device id 0x0001, 0x0002, or 0x0120.

Trying to wire in a bridge blacklist looks a bit dicey ... unless you're
sure this is (and will always be) the only bridge?  How should this
wiring be done? most of the bridge checks just see if the bridge is in
the system rather than walking up the device tree; is that OK?

If not, what about just a legacy check on X86, so hedge with

if (legacy || !CONFIG_X86)

(or even just dump the legacy check, since you think everything is fine
on x86 today?)

James


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> If not, what about just a legacy check on X86, so hedge with
> 
> if (legacy || !CONFIG_X86)
> 
> (or even just dump the legacy check, since you think everything is fine
> on x86 today?)

Well in theory you can plug a cardbus one into a non x86 assuming the
firmware doesn't explode in protest anyway !

I don't think the bridge walk is particularly tricky - it will always be
the direct parent bridge

So it's a matter of

	struct pci_dev *bridge = dev->bus->self;
	if (bridge && bridge->vendor == 0x14f2)

Alan

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On Tue, 2011-04-19 at 15:36 +0100, Alan Cox wrote:
> > If not, what about just a legacy check on X86, so hedge with
> > 
> > if (legacy || !CONFIG_X86)
> > 
> > (or even just dump the legacy check, since you think everything is fine
> > on x86 today?)
> 
> Well in theory you can plug a cardbus one into a non x86 assuming the
> firmware doesn't explode in protest anyway !
> 
> I don't think the bridge walk is particularly tricky - it will always be
> the direct parent bridge

OK, that's what I was looking for.  Most of the other bridge checks just
see if the bridge is present in the system.

> So it's a matter of
> 
> 	struct pci_dev *bridge = dev->bus->self;
> 	if (bridge && bridge->vendor == 0x14f2)

Which vendor is 0x14f2?  It probably should have a PCI_VENDOR_ID_...
define.

James


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Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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To: Michal Hocko <mhocko@suse.cz>
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On Tue, 2011-04-19 at 13:10 +0200, Michal Hocko wrote:
> On Mon 18-04-11 13:56:37, Andrew Morton wrote:
> > On Mon, 18 Apr 2011 12:01:31 +0200
> > Michal Hocko <mhocko@suse.cz> wrote:
> > 
> > > Currently we have expand_upwards exported while expand_downwards is
> > > accessible only via expand_stack or expand_stack_downwards.
> > > 
> > > check_stack_guard_page is a nice example of the asymmetry. It uses
> > > expand_stack for VM_GROWSDOWN while expand_upwards is called for
> > > VM_GROWSUP case.
> > > 
> > > Let's clean this up by exporting both functions and make those name
> > > consistent. Let's use expand_stack_{upwards,downwards} so that we are
> > > explicit about stack manipulation in the name. expand_stack_downwards
> > > has to be defined for both CONFIG_STACK_GROWS{UP,DOWN} because
> > > get_arg_page calls the downwards version in the early process
> > > initialization phase for growsup configuration.
> > 
> > Has this patch been tested on any stack-grows-upwards architecture?
> 
> The only one I can find in the tree is parisc and I do not have access
> to any such machine. Maybe someone on the list (CCed) can help with
> testing the patch bellow? Nevertheless, the patch doesn't change growsup
> case. It just renames functions and exports growsdown.

It compiles OK, but crashes on boot in fsck.  The crash is definitely mm
but looks to be a slab problem (it's a null deref on a spinlock in
add_partial(), which seems unrelated to this patch).

[   15.628000] sd 1:0:2:0: [sdc] Attached SCSI disk
done.
[   16.632000] EXT3-fs: barriers not enabled
[   16.640000] kjournald starting.  Commit interval 5 seconds
[   16.640000] EXT3-fs (sda3): mounted filesystem with ordered data mode
Begin: Running /scripts/local-bottom ... done.
done.
Begin: Running /scripts/init-bottom ... done.
INIT: version 2.88 booting
Setting hostname to 'ion'...done.
Starting the hotplug events dispatcher: udevd[   22.008000] udev[211]: starting version 164
.
Synthesizing the initial hotplug events...done.
Waiting for /dev to be fully populated...done.
Activating swap:swapon on /dev/sda2
swapon: /dev/sda2: found swap signature: version 1, page-size 4, same byte order
swapon: /dev/sda2: pagesize=4096, swapsize=1028157440, devsize=1028160000
[   28.780000] Adding 1004056k swap on /dev/sda2.  Priority:-1 extents:1 across:1004056k 
.
Will now check root file system:fsck from util-linux-ng 2.17.2
[/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a -C0 /dev/sda3 
/dev/sda3 has been mounted 37 times without being checked, check forced.
[  257.192000] Backtrace:===========                                \ 42.8%   
[  257.192000]  [<0000000040214f78>] add_partial+0x28/0x98
[  257.192000]  [<0000000040217ff8>] __slab_free+0x1d0/0x1d8
[  257.192000]  [<000000004021825c>] kmem_cache_free+0xc4/0x128
[  257.192000]  [<00000000401fd1a4>] remove_vma+0x8c/0xc0
[  257.192000]  [<00000000401fd3a8>] exit_mmap+0x1d0/0x220
[  257.192000]  [<0000000040156514>] mmput+0xd4/0x200
[  257.192000]  [<000000004015c7b8>] exit_mm+0x100/0x2c0
[  257.192000]  [<000000004015ef40>] do_exit+0x778/0x9d8
[  257.192000]  [<000000004015f1ec>] do_group_exit+0x4c/0xe0
[  257.192000]  [<000000004015f298>] sys_exit_group+0x18/0x28
[  257.192000]  [<0000000040106034>] syscall_exit+0x0/0x14
[  257.192000] 
[  257.192000] 
[  257.192000] Kernel Fault: Code=26 regs=00000040bf1807d0 (Addr=0000000000000000)
[  257.192000] 
[  257.192000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[  257.192000] PSW: 00001000000001001111000000001110 Not tainted
[  257.192000] r00-03  000000ff0804f00e 0000000040769e40 0000000040214f78 0000000000000000
[  257.192000] r04-07  0000000040746e40 0000000000000001 0000004080ded370 0000000000000001
[  257.192000] r08-11  0000000040654150 0000000000000000 0000000000000001 0000000000000001
[  257.192000] r12-15  0000000000000000 00000000ffffffff 0000000000000024 0000000000000000
[  257.192000] r16-19  00000000fb4ead9c 00000000fb4eac54 0000000000000000 0000000000000000
[  257.192000] r20-23  000000000800000e 0000000000000001 000000007bbb7180 00000000401fd1a4
[  257.192000] r24-27  0000000000000001 0000004080ded370 0000000000000000 0000000040746e40
[  257.192000] r28-31  000000007ec0a908 00000040bf1807a0 00000040bf1807d0 0000000000000016
[  257.192000] sr00-03  00000000002d9000 0000000000000000 0000000000000000 00000000002d9000
[  257.192000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[  257.192000] 
[  257.192000] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004011bbc0 000000004011bbc4
[  257.192000]  IIR: 0f4015dc    ISR: 0000000000000000  IOR: 0000000000000000
[  257.192000]  CPU:        0   CR30: 00000040bf180000 CR31: fffffff0f0e098e0
[  257.192000]  ORIG_R28: 0000000040769e40
[  257.192000]  IAOQ[0]: _raw_spin_lock+0x0/0x20
[  257.192000]  IAOQ[1]: _raw_spin_lock+0x4/0x20
[  257.192000]  RP(r2): add_partial+0x28/0x98
[  257.192000] Backtrace:
[  257.192000]  [<0000000040214f78>] add_partial+0x28/0x98
[  257.192000]  [<0000000040217ff8>] __slab_free+0x1d0/0x1d8
[  257.192000]  [<000000004021825c>] kmem_cache_free+0xc4/0x128
[  257.192000]  [<00000000401fd1a4>] remove_vma+0x8c/0xc0
[  257.192000]  [<00000000401fd3a8>] exit_mmap+0x1d0/0x220
[  257.192000]  [<0000000040156514>] mmput+0xd4/0x200
[  257.192000]  [<000000004015c7b8>] exit_mm+0x100/0x2c0
[  257.192000]  [<000000004015ef40>] do_exit+0x778/0x9d8
[  257.192000]  [<000000004015f1ec>] do_group_exit+0x4c/0xe0
[  257.192000]  [<000000004015f298>] sys_exit_group+0x18/0x28
[  257.192000]  [<0000000040106034>] syscall_exit+0x0/0x14
[  257.192000] 
[  257.192000] Kernel panic - not syncing: Kernel Fault
[  257.192000] Backtrace:
[  257.192000]  [<000000004011f984>] show_stack+0x14/0x20
[  257.192000]  [<000000004011f9a8>] dump_stack+0x18/0x28
[  257.192000]  [<000000004015946c>] panic+0xd4/0x368
[  257.192000]  [<0000000040120024>] parisc_terminate+0x14c/0x170
[  257.192000]  [<000000004012059c>] handle_interruption+0x2ac/0x8f8
[  257.192000]  [<000000004011bbc0>] _raw_spin_lock+0x0/0x20
[  257.192000] 
[  257.192000] Rebooting in 5 seconds..

It seems to be a random intermittent mm crash because the next reboot
crashed with the same trace but after the fsck had completed and the
third came up to the login prompt.

James


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Subject: Re: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on boot
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> > 	struct pci_dev *bridge = dev->bus->self;
> > 	if (bridge && bridge->vendor == 0x14f2)
> 
> Which vendor is 0x14f2?  It probably should have a PCI_VENDOR_ID_...
> define.

Jeff whines about those, Its Mobility Electronics.

Alan
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Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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> It compiles OK, but crashes on boot in fsck.  The crash is definitely mm
> but looks to be a slab problem (it's a null deref on a spinlock in
> add_partial(), which seems unrelated to this patch).

I had a somewhat similar crash Sunday with the "debian" config building GCC.
This is with 2.6.39-rc3+  without the mm patch:

mx3210 login: [12244.664000] Backtrace:
[12244.664000]  [<000000004020c9a0>] __slab_free+0x100/0x200
[12244.664000]  [<000000004020d23c>] kmem_cache_free+0xf4/0x108
[12244.668000]  [<000000001c7e9efc>] __journal_remove_journal_head+0x214/0x248 [
jbd]
[12244.668000]  [<000000001c7edd48>] journal_put_journal_head+0xc8/0x168 [jbd]
[12244.668000]  [<000000001c7e158c>] journal_invalidatepage+0x45c/0x710 [jbd]
[12244.672000]  [<000000001c8652d8>] ext3_invalidatepage+0x88/0xe8 [ext3]
[12244.672000]  [<00000000401d76f4>] do_invalidatepage+0x34/0x40
[12244.672000]  [<00000000401d7770>] truncate_inode_page+0x70/0x178
[12244.676000]  [<00000000401d798c>] truncate_inode_pages_range+0x114/0x518
[12244.676000]  [<00000000401d7da4>] truncate_inode_pages+0x14/0x20
[12244.680000]  [<000000001c86ac1c>] ext3_evict_inode+0x64/0x2a8 [ext3]
[12244.680000]  [<0000000040234424>] evict+0xac/0x1c8

[12244.692000] PSW: 00001000000001101111001100001110 Not tainted
[12244.692000] r00-03  000000ff0806f30e 0000000040745e50 000000004020c9a0 000000
01453d6000
[12244.692000] r04-07  0000000040722e50 0000000000000000 00000002bf400000 000000
001c7dc000
[12244.696000] r08-11  0000000000000002 0000000040630298 0000000000000001 000000
007bba4940
[12244.696000] r12-15  00000002bf400000 0000000000000001 0000000000000000 000000
0000000001
[12244.700000] r16-19  000000007e71d888 000000007e71d888 0000000000001000 200000
0000000081
[12244.700000] r20-23  0000000000000000 0000000040630290 0000000000000001 000000
001c7e9efc
[12244.704000] r24-27  000000000800000e 00000001453d6000 0000000000000000 000000
0040722e50
[12244.704000] r28-31  0000000000000001 000000007bba4b70 000000007bba4ba0 000000
0000000023
[12244.708000] sr00-03  000000000556c000 000000000556c000 0000000000000000 000000000556c000
[12244.708000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

[12244.712000]
[12244.712000] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004011b240 000000004011b244
[12244.712000]  IIR: 0f4015dc    ISR: 0000000000000000  IOR: 0000000000000000
[12244.716000]  CPU:        3   CR30: 000000007bba4000 CR31: ffffffffffffffff
[12244.716000]  ORIG_R28: 0000000000000001
[12244.720000]  IAOQ[0]: _raw_spin_lock+0x10/0x20
[12244.720000]  IAOQ[1]: _raw_spin_lock+0x14/0x20
[12244.720000]  RP(r2): __slab_free+0x100/0x200

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:07:01 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
 expand_upwards
Date: Tue, 19 Apr 2011 11:07:33 -0500
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Approved: news@gmane.org
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	 <20110418100131.GD8925@tiehlicka.suse.cz>
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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To: Michal Hocko <mhocko@suse.cz>
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On Tue, 2011-04-19 at 10:46 -0500, James Bottomley wrote:
> On Tue, 2011-04-19 at 13:10 +0200, Michal Hocko wrote:
> > On Mon 18-04-11 13:56:37, Andrew Morton wrote:
> > > On Mon, 18 Apr 2011 12:01:31 +0200
> > > Michal Hocko <mhocko@suse.cz> wrote:
> > > 
> > > > Currently we have expand_upwards exported while expand_downwards is
> > > > accessible only via expand_stack or expand_stack_downwards.
> > > > 
> > > > check_stack_guard_page is a nice example of the asymmetry. It uses
> > > > expand_stack for VM_GROWSDOWN while expand_upwards is called for
> > > > VM_GROWSUP case.
> > > > 
> > > > Let's clean this up by exporting both functions and make those name
> > > > consistent. Let's use expand_stack_{upwards,downwards} so that we are
> > > > explicit about stack manipulation in the name. expand_stack_downwards
> > > > has to be defined for both CONFIG_STACK_GROWS{UP,DOWN} because
> > > > get_arg_page calls the downwards version in the early process
> > > > initialization phase for growsup configuration.
> > > 
> > > Has this patch been tested on any stack-grows-upwards architecture?
> > 
> > The only one I can find in the tree is parisc and I do not have access
> > to any such machine. Maybe someone on the list (CCed) can help with
> > testing the patch bellow? Nevertheless, the patch doesn't change growsup
> > case. It just renames functions and exports growsdown.
> 
> It compiles OK, but crashes on boot in fsck.  The crash is definitely mm
> but looks to be a slab problem (it's a null deref on a spinlock in
> add_partial(), which seems unrelated to this patch).
> 
> [   15.628000] sd 1:0:2:0: [sdc] Attached SCSI disk
> done.
> [   16.632000] EXT3-fs: barriers not enabled
> [   16.640000] kjournald starting.  Commit interval 5 seconds
> [   16.640000] EXT3-fs (sda3): mounted filesystem with ordered data mode
> Begin: Running /scripts/local-bottom ... done.
> done.
> Begin: Running /scripts/init-bottom ... done.
> INIT: version 2.88 booting
> Setting hostname to 'ion'...done.
> Starting the hotplug events dispatcher: udevd[   22.008000] udev[211]: starting version 164
> .
> Synthesizing the initial hotplug events...done.
> Waiting for /dev to be fully populated...done.
> Activating swap:swapon on /dev/sda2
> swapon: /dev/sda2: found swap signature: version 1, page-size 4, same byte order
> swapon: /dev/sda2: pagesize=4096, swapsize=1028157440, devsize=1028160000
> [   28.780000] Adding 1004056k swap on /dev/sda2.  Priority:-1 extents:1 across:1004056k 
> .
> Will now check root file system:fsck from util-linux-ng 2.17.2
> [/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a -C0 /dev/sda3 
> /dev/sda3 has been mounted 37 times without being checked, check forced.
> [  257.192000] Backtrace:===========                                \ 42.8%   
> [  257.192000]  [<0000000040214f78>] add_partial+0x28/0x98
> [  257.192000]  [<0000000040217ff8>] __slab_free+0x1d0/0x1d8
> [  257.192000]  [<000000004021825c>] kmem_cache_free+0xc4/0x128
> [  257.192000]  [<00000000401fd1a4>] remove_vma+0x8c/0xc0
> [  257.192000]  [<00000000401fd3a8>] exit_mmap+0x1d0/0x220
> [  257.192000]  [<0000000040156514>] mmput+0xd4/0x200
> [  257.192000]  [<000000004015c7b8>] exit_mm+0x100/0x2c0
> [  257.192000]  [<000000004015ef40>] do_exit+0x778/0x9d8
> [  257.192000]  [<000000004015f1ec>] do_group_exit+0x4c/0xe0
> [  257.192000]  [<000000004015f298>] sys_exit_group+0x18/0x28
> [  257.192000]  [<0000000040106034>] syscall_exit+0x0/0x14
> [  257.192000] 
> [  257.192000] 
> [  257.192000] Kernel Fault: Code=26 regs=00000040bf1807d0 (Addr=0000000000000000)
> [  257.192000] 
> [  257.192000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [  257.192000] PSW: 00001000000001001111000000001110 Not tainted
> [  257.192000] r00-03  000000ff0804f00e 0000000040769e40 0000000040214f78 0000000000000000
> [  257.192000] r04-07  0000000040746e40 0000000000000001 0000004080ded370 0000000000000001
> [  257.192000] r08-11  0000000040654150 0000000000000000 0000000000000001 0000000000000001
> [  257.192000] r12-15  0000000000000000 00000000ffffffff 0000000000000024 0000000000000000
> [  257.192000] r16-19  00000000fb4ead9c 00000000fb4eac54 0000000000000000 0000000000000000
> [  257.192000] r20-23  000000000800000e 0000000000000001 000000007bbb7180 00000000401fd1a4
> [  257.192000] r24-27  0000000000000001 0000004080ded370 0000000000000000 0000000040746e40
> [  257.192000] r28-31  000000007ec0a908 00000040bf1807a0 00000040bf1807d0 0000000000000016
> [  257.192000] sr00-03  00000000002d9000 0000000000000000 0000000000000000 00000000002d9000
> [  257.192000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> [  257.192000] 
> [  257.192000] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004011bbc0 000000004011bbc4
> [  257.192000]  IIR: 0f4015dc    ISR: 0000000000000000  IOR: 0000000000000000
> [  257.192000]  CPU:        0   CR30: 00000040bf180000 CR31: fffffff0f0e098e0
> [  257.192000]  ORIG_R28: 0000000040769e40
> [  257.192000]  IAOQ[0]: _raw_spin_lock+0x0/0x20
> [  257.192000]  IAOQ[1]: _raw_spin_lock+0x4/0x20
> [  257.192000]  RP(r2): add_partial+0x28/0x98
> [  257.192000] Backtrace:
> [  257.192000]  [<0000000040214f78>] add_partial+0x28/0x98
> [  257.192000]  [<0000000040217ff8>] __slab_free+0x1d0/0x1d8
> [  257.192000]  [<000000004021825c>] kmem_cache_free+0xc4/0x128
> [  257.192000]  [<00000000401fd1a4>] remove_vma+0x8c/0xc0
> [  257.192000]  [<00000000401fd3a8>] exit_mmap+0x1d0/0x220
> [  257.192000]  [<0000000040156514>] mmput+0xd4/0x200
> [  257.192000]  [<000000004015c7b8>] exit_mm+0x100/0x2c0
> [  257.192000]  [<000000004015ef40>] do_exit+0x778/0x9d8
> [  257.192000]  [<000000004015f1ec>] do_group_exit+0x4c/0xe0
> [  257.192000]  [<000000004015f298>] sys_exit_group+0x18/0x28
> [  257.192000]  [<0000000040106034>] syscall_exit+0x0/0x14
> [  257.192000] 
> [  257.192000] Kernel panic - not syncing: Kernel Fault
> [  257.192000] Backtrace:
> [  257.192000]  [<000000004011f984>] show_stack+0x14/0x20
> [  257.192000]  [<000000004011f9a8>] dump_stack+0x18/0x28
> [  257.192000]  [<000000004015946c>] panic+0xd4/0x368
> [  257.192000]  [<0000000040120024>] parisc_terminate+0x14c/0x170
> [  257.192000]  [<000000004012059c>] handle_interruption+0x2ac/0x8f8
> [  257.192000]  [<000000004011bbc0>] _raw_spin_lock+0x0/0x20
> [  257.192000] 
> [  257.192000] Rebooting in 5 seconds..
> 
> It seems to be a random intermittent mm crash because the next reboot
> crashed with the same trace but after the fsck had completed and the
> third came up to the login prompt.

I should add that this crash is with CONFIG_SLUB ... do you want me to
retry with CONFIG_SLAB?

James


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From - Thu Nov 08 21:07:01 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
Date: Tue, 19 Apr 2011 11:59:09 -0500
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Cc: mhocko@suse.cz, akpm@linux-foundation.org, hughd@google.com,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Tue, 2011-04-19 at 12:06 -0400, John David Anglin wrote:
> > It compiles OK, but crashes on boot in fsck.  The crash is definitely mm
> > but looks to be a slab problem (it's a null deref on a spinlock in
> > add_partial(), which seems unrelated to this patch).
> 
> I had a somewhat similar crash Sunday with the "debian" config building GCC.
> This is with 2.6.39-rc3+  without the mm patch:
> 
> mx3210 login: [12244.664000] Backtrace:
> [12244.664000]  [<000000004020c9a0>] __slab_free+0x100/0x200
> [12244.664000]  [<000000004020d23c>] kmem_cache_free+0xf4/0x108
> [12244.668000]  [<000000001c7e9efc>] __journal_remove_journal_head+0x214/0x248 [
> jbd]
> [12244.668000]  [<000000001c7edd48>] journal_put_journal_head+0xc8/0x168 [jbd]
> [12244.668000]  [<000000001c7e158c>] journal_invalidatepage+0x45c/0x710 [jbd]
> [12244.672000]  [<000000001c8652d8>] ext3_invalidatepage+0x88/0xe8 [ext3]
> [12244.672000]  [<00000000401d76f4>] do_invalidatepage+0x34/0x40
> [12244.672000]  [<00000000401d7770>] truncate_inode_page+0x70/0x178
> [12244.676000]  [<00000000401d798c>] truncate_inode_pages_range+0x114/0x518
> [12244.676000]  [<00000000401d7da4>] truncate_inode_pages+0x14/0x20
> [12244.680000]  [<000000001c86ac1c>] ext3_evict_inode+0x64/0x2a8 [ext3]
> [12244.680000]  [<0000000040234424>] evict+0xac/0x1c8
> 
> [12244.692000] PSW: 00001000000001101111001100001110 Not tainted
> [12244.692000] r00-03  000000ff0806f30e 0000000040745e50 000000004020c9a0 000000
> 01453d6000
> [12244.692000] r04-07  0000000040722e50 0000000000000000 00000002bf400000 000000
> 001c7dc000
> [12244.696000] r08-11  0000000000000002 0000000040630298 0000000000000001 000000
> 007bba4940
> [12244.696000] r12-15  00000002bf400000 0000000000000001 0000000000000000 000000
> 0000000001
> [12244.700000] r16-19  000000007e71d888 000000007e71d888 0000000000001000 200000
> 0000000081
> [12244.700000] r20-23  0000000000000000 0000000040630290 0000000000000001 000000
> 001c7e9efc
> [12244.704000] r24-27  000000000800000e 00000001453d6000 0000000000000000 000000
> 0040722e50
> [12244.704000] r28-31  0000000000000001 000000007bba4b70 000000007bba4ba0 000000
> 0000000023
> [12244.708000] sr00-03  000000000556c000 000000000556c000 0000000000000000 000000000556c000
> [12244.708000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> [12244.712000]
> [12244.712000] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004011b240 000000004011b244
> [12244.712000]  IIR: 0f4015dc    ISR: 0000000000000000  IOR: 0000000000000000
> [12244.716000]  CPU:        3   CR30: 000000007bba4000 CR31: ffffffffffffffff
> [12244.716000]  ORIG_R28: 0000000000000001
> [12244.720000]  IAOQ[0]: _raw_spin_lock+0x10/0x20
> [12244.720000]  IAOQ[1]: _raw_spin_lock+0x14/0x20
> [12244.720000]  RP(r2): __slab_free+0x100/0x200

Yes, it's the same crash.  Apparently get_node() is returning NULL for
some reason.

James


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From - Thu Nov 08 21:07:01 2018
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From: Pekka Enberg <penberg@kernel.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to expand_upwards
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Xref: news.gmane.org gmane.linux.ports.parisc:3571 gmane.linux.kernel.mm:61589 gmane.linux.kernel:1128513
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On Tue, Apr 19, 2011 at 6:46 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> It compiles OK, but crashes on boot in fsck. =A0The crash is definite=
ly mm
> but looks to be a slab problem (it's a null deref on a spinlock in
> add_partial(), which seems unrelated to this patch).
>
> [ =A0 15.628000] sd 1:0:2:0: [sdc] Attached SCSI disk
> done.
> [ =A0 16.632000] EXT3-fs: barriers not enabled
> [ =A0 16.640000] kjournald starting. =A0Commit interval 5 seconds
> [ =A0 16.640000] EXT3-fs (sda3): mounted filesystem with ordered data=
 mode
> Begin: Running /scripts/local-bottom ... done.
> done.
> Begin: Running /scripts/init-bottom ... done.
> INIT: version 2.88 booting
> Setting hostname to 'ion'...done.
> Starting the hotplug events dispatcher: udevd[ =A0 22.008000] udev[21=
1]: starting version 164
> .
> Synthesizing the initial hotplug events...done.
> Waiting for /dev to be fully populated...done.
> Activating swap:swapon on /dev/sda2
> swapon: /dev/sda2: found swap signature: version 1, page-size 4, same=
 byte order
> swapon: /dev/sda2: pagesize=3D4096, swapsize=3D1028157440, devsize=3D=
1028160000
> [ =A0 28.780000] Adding 1004056k swap on /dev/sda2. =A0Priority:-1 ex=
tents:1 across:1004056k
> .
> Will now check root file system:fsck from util-linux-ng 2.17.2
> [/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a -C0 /dev/sda3
> /dev/sda3 has been mounted 37 times without being checked, check forc=
ed.
> [ =A0257.192000] Backtrace:=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\ 42.8%
> [ =A0257.192000] =A0[<0000000040214f78>] add_partial+0x28/0x98
> [ =A0257.192000] =A0[<0000000040217ff8>] __slab_free+0x1d0/0x1d8
> [ =A0257.192000] =A0[<000000004021825c>] kmem_cache_free+0xc4/0x128
> [ =A0257.192000] =A0[<00000000401fd1a4>] remove_vma+0x8c/0xc0
> [ =A0257.192000] =A0[<00000000401fd3a8>] exit_mmap+0x1d0/0x220
> [ =A0257.192000] =A0[<0000000040156514>] mmput+0xd4/0x200
> [ =A0257.192000] =A0[<000000004015c7b8>] exit_mm+0x100/0x2c0
> [ =A0257.192000] =A0[<000000004015ef40>] do_exit+0x778/0x9d8
> [ =A0257.192000] =A0[<000000004015f1ec>] do_group_exit+0x4c/0xe0
> [ =A0257.192000] =A0[<000000004015f298>] sys_exit_group+0x18/0x28
> [ =A0257.192000] =A0[<0000000040106034>] syscall_exit+0x0/0x14
> [ =A0257.192000]
> [ =A0257.192000]
> [ =A0257.192000] Kernel Fault: Code=3D26 regs=3D00000040bf1807d0 (Add=
r=3D0000000000000000)
> [ =A0257.192000]
> [ =A0257.192000] =A0 =A0 =A0YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [ =A0257.192000] PSW: 00001000000001001111000000001110 Not tainted
> [ =A0257.192000] r00-03 =A0000000ff0804f00e 0000000040769e40 00000000=
40214f78 0000000000000000
> [ =A0257.192000] r04-07 =A00000000040746e40 0000000000000001 00000040=
80ded370 0000000000000001
> [ =A0257.192000] r08-11 =A00000000040654150 0000000000000000 00000000=
00000001 0000000000000001
> [ =A0257.192000] r12-15 =A00000000000000000 00000000ffffffff 00000000=
00000024 0000000000000000
> [ =A0257.192000] r16-19 =A000000000fb4ead9c 00000000fb4eac54 00000000=
00000000 0000000000000000
> [ =A0257.192000] r20-23 =A0000000000800000e 0000000000000001 00000000=
7bbb7180 00000000401fd1a4
> [ =A0257.192000] r24-27 =A00000000000000001 0000004080ded370 00000000=
00000000 0000000040746e40
> [ =A0257.192000] r28-31 =A0000000007ec0a908 00000040bf1807a0 00000040=
bf1807d0 0000000000000016
> [ =A0257.192000] sr00-03 =A000000000002d9000 0000000000000000 0000000=
000000000 00000000002d9000
> [ =A0257.192000] sr04-07 =A00000000000000000 0000000000000000 0000000=
000000000 0000000000000000
> [ =A0257.192000]
> [ =A0257.192000] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000=
004011bbc0 000000004011bbc4
> [ =A0257.192000] =A0IIR: 0f4015dc =A0 =A0ISR: 0000000000000000 =A0IOR=
: 0000000000000000
> [ =A0257.192000] =A0CPU: =A0 =A0 =A0 =A00 =A0 CR30: 00000040bf180000 =
CR31: fffffff0f0e098e0
> [ =A0257.192000] =A0ORIG_R28: 0000000040769e40
> [ =A0257.192000] =A0IAOQ[0]: _raw_spin_lock+0x0/0x20
> [ =A0257.192000] =A0IAOQ[1]: _raw_spin_lock+0x4/0x20
> [ =A0257.192000] =A0RP(r2): add_partial+0x28/0x98
> [ =A0257.192000] Backtrace:
> [ =A0257.192000] =A0[<0000000040214f78>] add_partial+0x28/0x98
> [ =A0257.192000] =A0[<0000000040217ff8>] __slab_free+0x1d0/0x1d8
> [ =A0257.192000] =A0[<000000004021825c>] kmem_cache_free+0xc4/0x128
> [ =A0257.192000] =A0[<00000000401fd1a4>] remove_vma+0x8c/0xc0
> [ =A0257.192000] =A0[<00000000401fd3a8>] exit_mmap+0x1d0/0x220
> [ =A0257.192000] =A0[<0000000040156514>] mmput+0xd4/0x200
> [ =A0257.192000] =A0[<000000004015c7b8>] exit_mm+0x100/0x2c0
> [ =A0257.192000] =A0[<000000004015ef40>] do_exit+0x778/0x9d8
> [ =A0257.192000] =A0[<000000004015f1ec>] do_group_exit+0x4c/0xe0
> [ =A0257.192000] =A0[<000000004015f298>] sys_exit_group+0x18/0x28
> [ =A0257.192000] =A0[<0000000040106034>] syscall_exit+0x0/0x14
> [ =A0257.192000]
> [ =A0257.192000] Kernel panic - not syncing: Kernel Fault
> [ =A0257.192000] Backtrace:
> [ =A0257.192000] =A0[<000000004011f984>] show_stack+0x14/0x20
> [ =A0257.192000] =A0[<000000004011f9a8>] dump_stack+0x18/0x28
> [ =A0257.192000] =A0[<000000004015946c>] panic+0xd4/0x368
> [ =A0257.192000] =A0[<0000000040120024>] parisc_terminate+0x14c/0x170
> [ =A0257.192000] =A0[<000000004012059c>] handle_interruption+0x2ac/0x=
8f8
> [ =A0257.192000] =A0[<000000004011bbc0>] _raw_spin_lock+0x0/0x20
> [ =A0257.192000]
> [ =A0257.192000] Rebooting in 5 seconds..
>
> It seems to be a random intermittent mm crash because the next reboot
> crashed with the same trace but after the fsck had completed and the
> third came up to the login prompt.

Looks like a genuine SLUB problem on parisc. Christoph?
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From - Thu Nov 08 21:07:02 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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	LKML <linux-kernel@vger.kernel.org>,
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To: Pekka Enberg <penberg@kernel.org>
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On Tue, 2011-04-19 at 20:05 +0300, Pekka Enberg wrote:
> > It seems to be a random intermittent mm crash because the next reboot
> > crashed with the same trace but after the fsck had completed and the
> > third came up to the login prompt.
> 
> Looks like a genuine SLUB problem on parisc. Christoph?

Looking through the slub code, it seems to be making invalid
assumptions.  All of the node stuff is dependent on CONFIG_NUMA.
However, we're CONFIG_DISCONTIGMEM (with CONFIG_NUMA not set): on the
machines I and Dave Anglin have, our physical memory ranges are 0-1GB
and 64-65GB, so I think slub crashes when we get a page from the high
memory range ... because it's not expecting a non-zero node number.

James


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On Tue, 19 Apr 2011, Pekka Enberg wrote:

> On Tue, Apr 19, 2011 at 6:46 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> > It compiles OK, but crashes on boot in fsck. =A0The crash is definitely=
 mm
> > but looks to be a slab problem (it's a null deref on a spinlock in
> > add_partial(), which seems unrelated to this patch).

That means that the per node structures have not been setup yet. Node
hotplug not working?

> > It seems to be a random intermittent mm crash because the next reboot
> > crashed with the same trace but after the fsck had completed and the
> > third came up to the login prompt.
>
> Looks like a genuine SLUB problem on parisc. Christoph?

Race between node hotplug and use of the slab on that node?

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On Tue, 19 Apr 2011, James Bottomley wrote:

> On Tue, 2011-04-19 at 20:05 +0300, Pekka Enberg wrote:
> > > It seems to be a random intermittent mm crash because the next reboot
> > > crashed with the same trace but after the fsck had completed and the
> > > third came up to the login prompt.
> >
> > Looks like a genuine SLUB problem on parisc. Christoph?
>
> Looking through the slub code, it seems to be making invalid
> assumptions.  All of the node stuff is dependent on CONFIG_NUMA.
> However, we're CONFIG_DISCONTIGMEM (with CONFIG_NUMA not set): on the
> machines I and Dave Anglin have, our physical memory ranges are 0-1GB
> and 64-65GB, so I think slub crashes when we get a page from the high
> memory range ... because it's not expecting a non-zero node number.

Right !NUMA systems only have node 0.

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On Tue, 2011-04-19 at 12:15 -0500, Christoph Lameter wrote:
> On Tue, 19 Apr 2011, James Bottomley wrote:
> 
> > On Tue, 2011-04-19 at 20:05 +0300, Pekka Enberg wrote:
> > > > It seems to be a random intermittent mm crash because the next reboot
> > > > crashed with the same trace but after the fsck had completed and the
> > > > third came up to the login prompt.
> > >
> > > Looks like a genuine SLUB problem on parisc. Christoph?
> >
> > Looking through the slub code, it seems to be making invalid
> > assumptions.  All of the node stuff is dependent on CONFIG_NUMA.
> > However, we're CONFIG_DISCONTIGMEM (with CONFIG_NUMA not set): on the
> > machines I and Dave Anglin have, our physical memory ranges are 0-1GB
> > and 64-65GB, so I think slub crashes when we get a page from the high
> > memory range ... because it's not expecting a non-zero node number.
> 
> Right !NUMA systems only have node 0.

That's rubbish.  Discontigmem uses the nodes field to identify the
discontiguous region.  page_to_nid() returns this value.  Your code
wrongly assumes this is zero for non NUMA.

This simple program triggers the problem instantly because it forces
allocation up into the upper discontigmem range:

#include <stdlib.h>

void main(void)
{
  const long size = 1024*1024*1024;
  char *a = malloc(size);
  int i;

  for (i=0; i < size; i += 4096)
    a[i] = '\0';
}

I can fix the panic by hard coding get_nodes() to return the zero node
for the non-numa case ... however, presumably it's more than just this
that's broken in slub?

James

---

diff --git a/mm/slub.c b/mm/slub.c
index 94d2a33..243bd9c 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -235,7 +235,11 @@ int slab_is_available(void)
 
 static inline struct kmem_cache_node *get_node(struct kmem_cache *s, int node)
 {
+#ifdef CONFIG_NUMA
 	return s->node[node];
+#else
+	return s->node[0];
+#endif
 }
 
 /* Verify that a pointer has an address that is valid within a slab page */


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On Tue, 19 Apr 2011, James Bottomley wrote:

> > Right !NUMA systems only have node 0.
>
> That's rubbish.  Discontigmem uses the nodes field to identify the
> discontiguous region.  page_to_nid() returns this value.  Your code
> wrongly assumes this is zero for non NUMA.

Sorry the kernel has no node awareness if you do not set CONFIG_NUMA

F.e. zone node lookups work the following way

static inline int
zone_to_nid(struct zone *zone)
{
#ifdef CONFIG_NUMA
        return zone->node;
#else
        return 0;
#endif
}

How in the world did you get a zone setup in node 1 with a !NUMA config?


The problem seems to be that the kernel seems to allow a
definition of a page_to_nid() function that returns non zero in the !NUMA
case. And slub relies on page_to_nid returning zero in the !NUMA case.
Because NODES_WIDTH should be 0 in the !NUMA case and therefore
page_to_nid must return 0.

> I can fix the panic by hard coding get_nodes() to return the zero node
> for the non-numa case ... however, presumably it's more than just this
> that's broken in slub?

If you think that is broken then we have brokenness all over the kernel
whenever we determine the node from a page and use that to do a lookup.

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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To: Christoph Lameter <cl@linux.com>
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On Tue, 2011-04-19 at 13:10 -0500, Christoph Lameter wrote:
> On Tue, 19 Apr 2011, James Bottomley wrote:
> 
> > > Right !NUMA systems only have node 0.
> >
> > That's rubbish.  Discontigmem uses the nodes field to identify the
> > discontiguous region.  page_to_nid() returns this value.  Your code
> > wrongly assumes this is zero for non NUMA.
> 
> Sorry the kernel has no node awareness if you do not set CONFIG_NUMA
> 
> F.e. zone node lookups work the following way
> 
> static inline int
> zone_to_nid(struct zone *zone)
> {
> #ifdef CONFIG_NUMA
>         return zone->node;
> #else
>         return 0;
> #endif
> }
> 
> How in the world did you get a zone setup in node 1 with a !NUMA config?

I told you ... I forced an allocation into the first discontiguous
region.  That will return 1 for page_to_nid().

> The problem seems to be that the kernel seems to allow a
> definition of a page_to_nid() function that returns non zero in the !NUMA
> case.

This is called reality, yes.

>  And slub relies on page_to_nid returning zero in the !NUMA case.
> Because NODES_WIDTH should be 0 in the !NUMA case and therefore
> page_to_nid must return 0.

right, that's what I told you: slub is broken because it's making a
wrong assumption.  Look in asm-generic/memory_model.h it shows how the
page_to_nid() is used in finding the pfn array.  DISCONTIGMEM uses some
of the numa properties (including assigning zones to the discontiguous
regions).

> > I can fix the panic by hard coding get_nodes() to return the zero node
> > for the non-numa case ... however, presumably it's more than just this
> > that's broken in slub?
> 
> If you think that is broken then we have brokenness all over the kernel
> whenever we determine the node from a page and use that to do a lookup.

Not really.  The rest of the kernel uses the proper macros.  in
DISCONTIGMEM but !NUMA configs, the numa macros expand correctly.
You've cut across that with all the CONFIG_NUMA checks in slub.

James


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From: Christoph Lameter <cl@linux.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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On Tue, 19 Apr 2011, James Bottomley wrote:

> > }
> >
> > How in the world did you get a zone setup in node 1 with a !NUMA config?
>
> I told you ... I forced an allocation into the first discontiguous
> region.  That will return 1 for page_to_nid().

How? The kernel has no concept of a node 1 without CONFIG_NUMA and so you
cannot tell the page allocator to allocate from node 1.

zone_to_nid is used as a fallback mechanism for page_to_nid() and as shown
will always return 0 for !NUMA configs.

page_to_nid(x) == zone_to_nid(page_zone(x)) must hold true. It is not
here.

> > The problem seems to be that the kernel seems to allow a
> > definition of a page_to_nid() function that returns non zero in the !NUMA
> > case.
>
> This is called reality, yes.

There you have the bug. Fix that and things will work fine.

> right, that's what I told you: slub is broken because it's making a
> wrong assumption.  Look in asm-generic/memory_model.h it shows how the
> page_to_nid() is used in finding the pfn array.  DISCONTIGMEM uses some
> of the numa properties (including assigning zones to the discontiguous
> regions).

Bitrotted code? If it uses numa properties then it must use a zone field
in struct zone. So DISCONTIGMEM seems to require CONFIG_NUMA.

> > If you think that is broken then we have brokenness all over the kernel
> > whenever we determine the node from a page and use that to do a lookup.
>
> Not really.  The rest of the kernel uses the proper macros.  in
> DISCONTIGMEM but !NUMA configs, the numa macros expand correctly.
> You've cut across that with all the CONFIG_NUMA checks in slub.

What are "the proper macros"? AFAICT page_to_nid() is the proper way to
access the node of a page. If page_to_nid() returns 1 then you have a zone
that the kernel knows of as being in node 0 having a page on a different
node.

We can likely force page_to_nid to ignore the node information that have
been erroneously placed there but this looks like something deeper is
wrong here. The node field in struct page is not only used for the Linux
support of a NUMA node but also for blocks of memory. Those should be
separate things.

---
 include/linux/mm.h |    4 ++++
 1 file changed, 4 insertions(+)

Index: linux-2.6/include/linux/mm.h
===================================================================
--- linux-2.6.orig/include/linux/mm.h	2011-04-19 13:20:20.092521248 -0500
+++ linux-2.6/include/linux/mm.h	2011-04-19 13:21:05.962521196 -0500
@@ -665,6 +665,7 @@ static inline int zone_to_nid(struct zon
 #endif
 }

+#ifdef CONFIG_NUMA
 #ifdef NODE_NOT_IN_PAGE_FLAGS
 extern int page_to_nid(struct page *page);
 #else
@@ -673,6 +674,9 @@ static inline int page_to_nid(struct pag
 	return (page->flags >> NODES_PGSHIFT) & NODES_MASK;
 }
 #endif
+#else
+#define page_to_nid(x) 0
+#endif

 static inline struct zone *page_zone(struct page *page)
 {
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From - Thu Nov 08 21:07:02 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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On Tue, 2011-04-19 at 13:35 -0500, Christoph Lameter wrote:
> On Tue, 19 Apr 2011, James Bottomley wrote:
> 
> > > }
> > >
> > > How in the world did you get a zone setup in node 1 with a !NUMA config?
> >
> > I told you ... I forced an allocation into the first discontiguous
> > region.  That will return 1 for page_to_nid().
> 
> How? The kernel has no concept of a node 1 without CONFIG_NUMA and so you
> cannot tell the page allocator to allocate from node 1.

Yes, it does, as I explained in the email.

> zone_to_nid is used as a fallback mechanism for page_to_nid() and as shown
> will always return 0 for !NUMA configs.
> 
> page_to_nid(x) == zone_to_nid(page_zone(x)) must hold true. It is not
> here.
> 
> > > The problem seems to be that the kernel seems to allow a
> > > definition of a page_to_nid() function that returns non zero in the !NUMA
> > > case.
> >
> > This is called reality, yes.
> 
> There you have the bug. Fix that and things will work fine.

Why don't yout file the bug against reality? I'm not sure I have enough
credibility ...

> > right, that's what I told you: slub is broken because it's making a
> > wrong assumption.  Look in asm-generic/memory_model.h it shows how the
> > page_to_nid() is used in finding the pfn array.  DISCONTIGMEM uses some
> > of the numa properties (including assigning zones to the discontiguous
> > regions).
> 
> Bitrotted code?

Don't be silly: alpha, ia64, m32r, m68k, mips, parisc, tile and even x86
all use the discontigmem memory model in some configurations.

>  If it uses numa properties then it must use a zone field
> in struct zone. So DISCONTIGMEM seems to require CONFIG_NUMA.

No ... you're giving me back your assumptions.  They're not based on
what the kernel does.  CONFIG_NUMA may or may not be defined with
CONFIG_DISCONTIGMEM.

Of all the above, only x86 always had NUMA with DISCONTIGMEM.

> > > If you think that is broken then we have brokenness all over the kernel
> > > whenever we determine the node from a page and use that to do a lookup.
> >
> > Not really.  The rest of the kernel uses the proper macros.  in
> > DISCONTIGMEM but !NUMA configs, the numa macros expand correctly.
> > You've cut across that with all the CONFIG_NUMA checks in slub.
> 
> What are "the proper macros"? AFAICT page_to_nid() is the proper way to
> access the node of a page. If page_to_nid() returns 1 then you have a zone
> that the kernel knows of as being in node 0 having a page on a different
> node.

Well it depends what you want.  If you only want the actual NUMA node,
then pfn_to_nid() probably isn't what you want, because in a
DISCONTIGMEM model, there may be multiple nids per actual numa node.

> We can likely force page_to_nid to ignore the node information that have
> been erroneously placed there but this looks like something deeper is
> wrong here. The node field in struct page is not only used for the Linux
> support of a NUMA node but also for blocks of memory. Those should be
> separate things.

Look, it's not wrong, it's by design.  The assumption that non-numa
systems don't use nodes is the wrong one.

> ---
>  include/linux/mm.h |    4 ++++
>  1 file changed, 4 insertions(+)
> 
> Index: linux-2.6/include/linux/mm.h
> ===================================================================
> --- linux-2.6.orig/include/linux/mm.h	2011-04-19 13:20:20.092521248 -0500
> +++ linux-2.6/include/linux/mm.h	2011-04-19 13:21:05.962521196 -0500
> @@ -665,6 +665,7 @@ static inline int zone_to_nid(struct zon
>  #endif
>  }
> 
> +#ifdef CONFIG_NUMA
>  #ifdef NODE_NOT_IN_PAGE_FLAGS
>  extern int page_to_nid(struct page *page);
>  #else
> @@ -673,6 +674,9 @@ static inline int page_to_nid(struct pag
>  	return (page->flags >> NODES_PGSHIFT) & NODES_MASK;
>  }
>  #endif
> +#else
> +#define page_to_nid(x) 0
> +#endif

Don't be silly ... that breaks asm-generic/memory_model.h

James


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From: Sergei Shtylyov <sshtylyov@mvista.com>
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Subject: Re: [PATCH 2/2] pata_cmd64x: fix crash on boot with disabled secondary
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Hello.

On 18-04-2011 22:45, James Bottomley wrote:

> On non-x86 systems, probing a port which is listed as disabled can
> cause an immediate crash.  Fix the driver not to do this by porting
> the enablebits check from the IDE driver and setting the
> ATA_HOST_SFF_SINGLE_PORT flag if only the primary is enabled.

> Signed-off-by: James Bottomley<James.Bottomley@HansenPartnership.com>
> ---
>   drivers/ata/pata_cmd64x.c |   22 +++++++++++++++++++---
>   1 files changed, 19 insertions(+), 3 deletions(-)

> diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
> index 905ff76..aa71a13 100644
> --- a/drivers/ata/pata_cmd64x.c
> +++ b/drivers/ata/pata_cmd64x.c
> @@ -41,6 +41,9 @@
>   enum {
>   	CFR 		= 0x50,
>   		CFR_INTR_CH0  = 0x04,
> +	ENPORT		= 0x51,

    The register is actually called CNTRL.
    BTW, the PCI-649 specification is available at:
http://gkernel.sourceforge.net/specs/sii/SiI649-DS-0066.pdf.bz2

> +		ENPORT_PRIMARY   = 0x04,
> +		ENPORT_SECONDARY = 0x08,
>   	CMDTIM 		= 0x52,
>   	ARTTIM0 	= 0x53,
>   	DRWTIM0 	= 0x54,
> @@ -329,8 +332,8 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
>   		}
>   	};
>   	const struct ata_port_info *ppi[] = {&cmd_info[id->driver_data], NULL };
> -	u8 mrdmode;
> -	int rc;
> +	u8 mrdmode, reg;
> +	int rc, hflags = 0;
>
>   	rc = pcim_enable_device(pdev);
>   	if (rc)
> @@ -354,6 +357,19 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
>   	mrdmode |= 0x02;	/* Memory read line enable */
>   	pci_write_config_byte(pdev, MRDMODE, mrdmode);
>
> +	/* check for enabled ports */
> +	pci_read_config_byte(pdev, ENPORT, &reg);
> +	/* the cm643 primary port is always enabled */
> +	if (id->driver_data != 0&&  !(reg&  ENPORT_PRIMARY)) {

    That's not quite correct. The original PCI0646 didn't have the primary 
channel enable bit as well as PCI0643; only PCI0646U+ had the bit in question.

> +		dev_printk(KERN_ERR, &pdev->dev, "Primary port is disabled; detaching\n");
> +		return -ENODEV;

    Why? It's perfectly valid to have only secondary port enabled.

WBR, Sergei

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From - Thu Nov 08 21:07:02 2018
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From: Sergei Shtylyov <sshtylyov@mvista.com>
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Subject: Re: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on boot
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Hello.

On 19-04-2011 0:50, James Bottomley wrote:

>> You shouldn't need to touch a single line of the core libata code,
>> although it might be the best way of doing it.

> So how about this, using the dummy port info mechanism.  I get a
> spurious ata2: DUMMY message, but I suppose libata people are used to
> that.  I still have to fix libata to prevent spurious irq information,
> but that's cosmetic.

> James

> ---

> diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
> index 905ff76..10dabe9 100644
> --- a/drivers/ata/pata_cmd64x.c
> +++ b/drivers/ata/pata_cmd64x.c
> @@ -354,6 +361,19 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
>   	mrdmode |= 0x02;	/* Memory read line enable */
>   	pci_write_config_byte(pdev, MRDMODE, mrdmode);
>
> +	/* check for enabled ports */
> +	pci_read_config_byte(pdev, ENPORT,&reg);
> +	/* the cm643 primary port is always enabled */
> +	if (id->driver_data != 0&&  !(reg&  ENPORT_PRIMARY)) {
> +		dev_printk(KERN_ERR,&pdev->dev, "Primary port is disabled; detaching\n");

    This is no longer true.

> +		ppi[0] =&ata_dummy_port_info;
> +		
> +	}

WBR, Sergei
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On Tue, 19 Apr 2011, James Bottomley wrote:

> > > I told you ... I forced an allocation into the first discontiguous
> > > region.  That will return 1 for page_to_nid().
> >
> > How? The kernel has no concept of a node 1 without CONFIG_NUMA and so you
> > cannot tell the page allocator to allocate from node 1.
>
> Yes, it does, as I explained in the email.

Looked through it and canot find it. How would that be possible to do
with core kernel calls since the page allocator calls do not allow you to
specify a node under !NUMA.

> Don't be silly: alpha, ia64, m32r, m68k, mips, parisc, tile and even x86
> all use the discontigmem memory model in some configurations.

I guess DISCONTIGMEM is typically used together with NUMA. Otherwise we
would have run into this before.

> > > Not really.  The rest of the kernel uses the proper macros.  in
> > > DISCONTIGMEM but !NUMA configs, the numa macros expand correctly.
> > > You've cut across that with all the CONFIG_NUMA checks in slub.
> >
> > What are "the proper macros"? AFAICT page_to_nid() is the proper way to
> > access the node of a page. If page_to_nid() returns 1 then you have a zone
> > that the kernel knows of as being in node 0 having a page on a different
> > node.
>
> Well it depends what you want.  If you only want the actual NUMA node,
> then pfn_to_nid() probably isn't what you want, because in a
> DISCONTIGMEM model, there may be multiple nids per actual numa node.

Right yes you got it. The notion of a node is different(!!!!!). What
matters to the core kernel is the notion of a NUMA node. If DISCONTIGMEM
runs with !NUMA then the way that "node" is used in DISCONTIGMEM is
different from the core code and refers only to the memory blocks managed
by DISCONTIGMEM. The node should be irrelevant to the core then.

> > We can likely force page_to_nid to ignore the node information that have
> > been erroneously placed there but this looks like something deeper is
> > wrong here. The node field in struct page is not only used for the Linux
> > support of a NUMA node but also for blocks of memory. Those should be
> > separate things.
>
> Look, it's not wrong, it's by design.  The assumption that non-numa
> systems don't use nodes is the wrong one.

Depends on how you define the notion of a node. The way the core kernel
uses the term "node" means that there will be only one node and that is
node 0 if CONFIG_NUMA is off. Thus page_to_nid() must return 0 for !NUMA.

All sort of things in the core code will break in weird ways if you do
allow page_to_nid to return 1 under !NUMA. Just look at the usage of
page_to_nid(). Tried to use huge pages yet? And how will your version
of reality deal with the following checks in the page allocator? F.e.

              VM_BUG_ON(page_to_nid(page) != zone_to_nid(zone));

Enabled CONFIG_DEBUG_VM yet?


> > Index: linux-2.6/include/linux/mm.h
> > ===================================================================
> > --- linux-2.6.orig/include/linux/mm.h	2011-04-19 13:20:20.092521248 -0500
> > +++ linux-2.6/include/linux/mm.h	2011-04-19 13:21:05.962521196 -0500
> > @@ -665,6 +665,7 @@ static inline int zone_to_nid(struct zon
> >  #endif
> >  }
> >
> > +#ifdef CONFIG_NUMA
> >  #ifdef NODE_NOT_IN_PAGE_FLAGS
> >  extern int page_to_nid(struct page *page);
> >  #else
> > @@ -673,6 +674,9 @@ static inline int page_to_nid(struct pag
> >  	return (page->flags >> NODES_PGSHIFT) & NODES_MASK;
> >  }
> >  #endif
> > +#else
> > +#define page_to_nid(x) 0
> > +#endif
>
> Don't be silly ... that breaks asm-generic/memory_model.h

Well yeah looks like in order to be clean in the !NUMA case we would then
need a page_to_discontig_node_id() there that is different from the
page_to_nid() used for the core.

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Hello.

On 19-04-2011 1:20, Alan Cox wrote:

>> +	}
>> +	if (!(reg&  ENPORT_SECONDARY)) {
>> +		dev_printk(KERN_NOTICE,&pdev->dev, "Secondary port is disabled\n");
>> +		ppi[1] =&ata_dummy_port_info;
>> +	}

> And you just broke split bridge setups. Also need to check if the bits
> are valid for this chipset in native mode officialy - Sergei probably
> knows the answer to that.

    The PCI-649 spec. doesn't say anything about legacy/native mode WRT the 
channel enable bits.

> We can detect the Mobility electronics split bridges at least (and I
> suspect they are the only 'common' CMD64x hot plug device indeed possibly
> the only one) because the parent bridge of the CMD64x will have a PCI
> vendor id of 0x14f2 and a device id 0x0001, 0x0002, or 0x0120.

    What's the issue with these brodges anyway? Why the enable bits are not 
valid for them?

WBR, Sergei
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> > We can detect the Mobility electronics split bridges at least (and I
> > suspect they are the only 'common' CMD64x hot plug device indeed possibly
> > the only one) because the parent bridge of the CMD64x will have a PCI
> > vendor id of 0x14f2 and a device id 0x0001, 0x0002, or 0x0120.
> 
>     What's the issue with these brodges anyway? Why the enable bits are not 
> valid for them?

Good question. I'd assumed because they are hotplugged and so no firmware
gets to set the bits properly ?
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On Tue, 2011-04-19 at 15:56 -0500, Christoph Lameter wrote:
> On Tue, 19 Apr 2011, James Bottomley wrote:
> 
> > > > I told you ... I forced an allocation into the first discontiguous
> > > > region.  That will return 1 for page_to_nid().
> > >
> > > How? The kernel has no concept of a node 1 without CONFIG_NUMA and so you
> > > cannot tell the page allocator to allocate from node 1.
> >
> > Yes, it does, as I explained in the email.
> 
> Looked through it and canot find it. How would that be possible to do
> with core kernel calls since the page allocator calls do not allow you to
> specify a node under !NUMA.

it's used under DISCONTIGMEM to identify the pfn array.

> > Don't be silly: alpha, ia64, m32r, m68k, mips, parisc, tile and even x86
> > all use the discontigmem memory model in some configurations.
> 
> I guess DISCONTIGMEM is typically used together with NUMA. Otherwise we
> would have run into this before.

Which bit of my telling you that six architectures already use it this
way did you not get?  I'm not really interested in reconciling your
theories with how we currently operate.  If you want to require NUMA
with DISCONTIGMEM, fine, we'll just define SLUB as broken if that's not
true ... that will fix my boot panic reports.

James

---

diff --git a/init/Kconfig b/init/Kconfig
index 56240e7..a7ad8fb 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1226,6 +1226,7 @@ config SLAB
 	  per cpu and per node queues.
 
 config SLUB
+	depends on BROKEN || NUMA || !DISCONTIGMEM
 	bool "SLUB (Unqueued Allocator)"
 	help
 	   SLUB is a slab allocator that minimizes cache line usage



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On 20-04-2011 1:19, Alan Cox wrote:

>>> We can detect the Mobility electronics split bridges at least (and I
>>> suspect they are the only 'common' CMD64x hot plug device indeed possibly
>>> the only one) because the parent bridge of the CMD64x will have a PCI
>>> vendor id of 0x14f2 and a device id 0x0001, 0x0002, or 0x0120.

>>      What's the issue with these brodges anyway? Why the enable bits are not
>> valid for them?

> Good question. I'd assumed because they are hotplugged and so no firmware
> gets to set the bits properly ?

    The bits are strapped off the pins JP3/JP4.

WBR, Sergei
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On Wed, 20 Apr 2011 01:22:54 +0400
Sergei Shtylyov <sshtylyov@mvista.com> wrote:

> On 20-04-2011 1:19, Alan Cox wrote:
> 
> >>> We can detect the Mobility electronics split bridges at least (and I
> >>> suspect they are the only 'common' CMD64x hot plug device indeed possibly
> >>> the only one) because the parent bridge of the CMD64x will have a PCI
> >>> vendor id of 0x14f2 and a device id 0x0001, 0x0002, or 0x0120.
> 
> >>      What's the issue with these brodges anyway? Why the enable bits are not
> >> valid for them?
> 
> > Good question. I'd assumed because they are hotplugged and so no firmware
> > gets to set the bits properly ?
> 
>     The bits are strapped off the pins JP3/JP4.

Beats me then. Whatever - its easy enough to work around and avoid
exploding parisc and sparc so it definitely wants sorting
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: slub: fix panic with DISCONTIGMEM
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Slub makes assumptions about page_to_nid() which are violated by
DISCONTIGMEM and !NUMA.  This violation results in a panic because
page_to_nid() can be non-zero for pages in the discontiguous ranges and
this leads to a null return by get_node().  The assertion by the
maintainer is that DISCONTIGMEM should only be allowed when NUMA is also
defined.  However, at least six architectures: alpha, ia64, m32r, m68k,
mips, parisc violate this.  The panic is a regression against slab, so
just mark slub broken in the problem configuration to prevent users
reporting these panics.

Cc: stable@kernel.org
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

---

diff --git a/init/Kconfig b/init/Kconfig
index 56240e7..a7ad8fb 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1226,6 +1226,7 @@ config SLAB
 	  per cpu and per node queues.
 
 config SLUB
+	depends on BROKEN || NUMA || !DISCONTIGMEM
 	bool "SLUB (Unqueued Allocator)"
 	help
 	   SLUB is a slab allocator that minimizes cache line usage


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On Tue, 19 Apr 2011, James Bottomley wrote:

> Slub makes assumptions about page_to_nid() which are violated by
> DISCONTIGMEM and !NUMA.  This violation results in a panic because

Fix this by stating correctly by saying "The kernel makes assumptions in
various subsystems ..."

> page_to_nid() can be non-zero for pages in the discontiguous ranges and
> this leads to a null return by get_node().  The assertion by the
> maintainer is that DISCONTIGMEM should only be allowed when NUMA is also
> defined.  However, at least six architectures: alpha, ia64, m32r, m68k,

That is not what I said. DISCONTIG support needs to be fixed so that the
core subsystems using page_to_nid() will operate correctly with a !NUMA
discontig configuration. Core will expect page_to_nid() to only return 0
on !NUMA.

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On Tue, 19 Apr 2011, James Bottomley wrote:

> > I guess DISCONTIGMEM is typically used together with NUMA. Otherwise we
> > would have run into this before.
>
> Which bit of my telling you that six architectures already use it this
> way did you not get?  I'm not really interested in reconciling your
> theories with how we currently operate.  If you want to require NUMA
> with DISCONTIGMEM, fine, we'll just define SLUB as broken if that's not
> true ... that will fix my boot panic reports.

Which part of me telling you that you will break lots of other things in
the core kernel dont you get? If you were able to get to a command prompt
with SLAB then lets all be happy for as long as it lasts.


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On Tue, 2011-04-19 at 16:39 -0500, Christoph Lameter wrote:
> On Tue, 19 Apr 2011, James Bottomley wrote:
> 
> > > I guess DISCONTIGMEM is typically used together with NUMA. Otherwise we
> > > would have run into this before.
> >
> > Which bit of my telling you that six architectures already use it this
> > way did you not get?  I'm not really interested in reconciling your
> > theories with how we currently operate.  If you want to require NUMA
> > with DISCONTIGMEM, fine, we'll just define SLUB as broken if that's not
> > true ... that will fix my boot panic reports.
> 
> Which part of me telling you that you will break lots of other things in
> the core kernel dont you get?

I get that you tell me this ... however, the systems that, according to
you, should be failing to get to boot prompt do, in fact, manage it.

>  If you were able to get to a command prompt
> with SLAB then lets all be happy for as long as it lasts.

We can't re-engineer DISCONTIGMEM as a bug fix, so something like this
has to be done for stable regardless.

James


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On Tue, 2011-04-19 at 16:38 -0500, Christoph Lameter wrote:
> On Tue, 19 Apr 2011, James Bottomley wrote:
> 
> > Slub makes assumptions about page_to_nid() which are violated by
> > DISCONTIGMEM and !NUMA.  This violation results in a panic because
> 
> Fix this by stating correctly by saying "The kernel makes assumptions in
> various subsystems ..."

Slub is a subset of the kernel, so the original wording is a bit more
precise.

> > page_to_nid() can be non-zero for pages in the discontiguous ranges and
> > this leads to a null return by get_node().  The assertion by the
> > maintainer is that DISCONTIGMEM should only be allowed when NUMA is also
> > defined.  However, at least six architectures: alpha, ia64, m32r, m68k,
> 
> That is not what I said. DISCONTIG support needs to be fixed so that the
> core subsystems using page_to_nid() will operate correctly with a !NUMA
> discontig configuration. Core will expect page_to_nid() to only return 0
> on !NUMA.

Well, we can discuss how to proceed going forwards.  The current fact is
that any prior kernel that enables SLUB with DISCONTIGMEM and !NUMA will
eventually go boom when the page allocator returns a page not in the
first pfn array.  That has to be fixed in -stable.  I don't really think
a DISCONTIGMEM re-engineering effort would be the best thing for the
-stable series.

James


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On Tue, 19 Apr 2011, James Bottomley wrote:

> > Which part of me telling you that you will break lots of other things in
> > the core kernel dont you get?
>
> I get that you tell me this ... however, the systems that, according to
> you, should be failing to get to boot prompt do, in fact, manage it.

If you dont use certain subsystems then it may work. Also do you run with
debuggin on.

The following patch is I think what would be needed to fix it.



Subject: [PATCH] Fix discontig support for !NUMA

Under NUMA discontig nodes map directly to the kernel NUMA nodes.

However, when DISCONTIG is used without NUMA then the kernel has only
one NUMA mode (==0) but within the node there may be multiple discontig pages
on various "nodes" for page struct vector management purposes.

Define a function __page_to_nid() that always extracts the node from
the page struct. This can be used in places where we need the discontig
node. Define page_to_nid() under !NUMA to always return 0. This ensures
that the various subsystems relying on page_to_nid(page) == 0 on !NUMA
function properly.

<Untested since I do not have a PARISC system. There could be
additional occurrences that need __page_to_nid>

Signed-off-by: Christoph Lameter <cl@linux.com>

---
 include/asm-generic/memory_model.h |    2 +-
 include/linux/mm.h                 |   10 ++++++++--
 mm/sparse.c                        |    2 +-
 3 files changed, 10 insertions(+), 4 deletions(-)

Index: linux-2.6/include/linux/mm.h
===================================================================
--- linux-2.6.orig/include/linux/mm.h	2011-04-19 16:43:53.822507013 -0500
+++ linux-2.6/include/linux/mm.h	2011-04-19 16:44:52.082506944 -0500
@@ -666,14 +666,20 @@ static inline int zone_to_nid(struct zon
 }

 #ifdef NODE_NOT_IN_PAGE_FLAGS
-extern int page_to_nid(struct page *page);
+extern int __page_to_nid(struct page *page);
 #else
-static inline int page_to_nid(struct page *page)
+static inline int __page_to_nid(struct page *page)
 {
 	return (page->flags >> NODES_PGSHIFT) & NODES_MASK;
 }
 #endif

+#ifdef CONFIG_NUMA
+#define page_to_nid __page_to_nid
+#else
+#define page_to_nid(x) 0
+#endif
+
 static inline struct zone *page_zone(struct page *page)
 {
 	return &NODE_DATA(page_to_nid(page))->node_zones[page_zonenum(page)];
Index: linux-2.6/include/asm-generic/memory_model.h
===================================================================
--- linux-2.6.orig/include/asm-generic/memory_model.h	2011-04-19 16:45:26.772506904 -0500
+++ linux-2.6/include/asm-generic/memory_model.h	2011-04-19 16:46:02.602506861 -0500
@@ -40,7 +40,7 @@

 #define __page_to_pfn(pg)						\
 ({	struct page *__pg = (pg);					\
-	struct pglist_data *__pgdat = NODE_DATA(page_to_nid(__pg));	\
+	struct pglist_data *__pgdat = NODE_DATA(__page_to_nid(__pg));	\
 	(unsigned long)(__pg - __pgdat->node_mem_map) +			\
 	 __pgdat->node_start_pfn;					\
 })
Index: linux-2.6/mm/sparse.c
===================================================================
--- linux-2.6.orig/mm/sparse.c	2011-04-19 16:44:58.432506937 -0500
+++ linux-2.6/mm/sparse.c	2011-04-19 16:45:07.332506926 -0500
@@ -40,7 +40,7 @@ static u8 section_to_node_table[NR_MEM_S
 static u16 section_to_node_table[NR_MEM_SECTIONS] __cacheline_aligned;
 #endif

-int page_to_nid(struct page *page)
+int __page_to_nid(struct page *page)
 {
 	return section_to_node_table[page_to_section(page)];
 }

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On Tue, 19 Apr 2011, James Bottomley wrote:

> On Tue, 2011-04-19 at 16:38 -0500, Christoph Lameter wrote:
> > On Tue, 19 Apr 2011, James Bottomley wrote:
> >
> > > Slub makes assumptions about page_to_nid() which are violated by
> > > DISCONTIGMEM and !NUMA.  This violation results in a panic because
> >
> > Fix this by stating correctly by saying "The kernel makes assumptions in
> > various subsystems ..."
>
> Slub is a subset of the kernel, so the original wording is a bit more
> precise.

F.e. hugepage support does the same thing. So it not slub specific.

> Well, we can discuss how to proceed going forwards.  The current fact is
> that any prior kernel that enables SLUB with DISCONTIGMEM and !NUMA will
> eventually go boom when the page allocator returns a page not in the
> first pfn array.  That has to be fixed in -stable.  I don't really think
> a DISCONTIGMEM re-engineering effort would be the best thing for the
> -stable series.

As far as I can tell: It will go boom even with other subsystems. I am
surprised that we have never seen this before.


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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ide,gmane.linux.ports.parisc
Subject: Re: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on
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Cc: Sergei Shtylyov <sshtylyov@mvista.com>,
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	Parisc List <linux-parisc@vger.kernel.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
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On Tue, 2011-04-19 at 22:28 +0100, Alan Cox wrote:
> Beats me then. Whatever - its easy enough to work around and avoid
> exploding parisc and sparc so it definitely wants sorting

OK, so are we all agreed on this (I'll split it up into the cosmetic
libata piece and the cmd64x fix later)?

James

---

diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index f8380ce..b1b926c 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -2447,13 +2447,18 @@ int ata_pci_sff_activate_host(struct ata_host *host,
 		return -ENOMEM;
 
 	if (!legacy_mode && pdev->irq) {
+		int i;
+
 		rc = devm_request_irq(dev, pdev->irq, irq_handler,
 				      IRQF_SHARED, drv_name, host);
 		if (rc)
 			goto out;
 
-		ata_port_desc(host->ports[0], "irq %d", pdev->irq);
-		ata_port_desc(host->ports[1], "irq %d", pdev->irq);
+		for (i = 0; i < 2; i++) {
+			if (ata_port_is_dummy(host->ports[i]))
+				continue;
+			ata_port_desc(host->ports[i], "irq %d", pdev->irq);
+		}
 	} else if (legacy_mode) {
 		if (!ata_port_is_dummy(host->ports[0])) {
 			rc = devm_request_irq(dev, ATA_PRIMARY_IRQ(pdev),
diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
index 905ff76..c39fd5a 100644
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -41,6 +41,9 @@
 enum {
 	CFR 		= 0x50,
 		CFR_INTR_CH0  = 0x04,
+	CNTRL		= 0x51,
+		CNTRL_PRIMARY   = 0x04,
+		CNTRL_SECONDARY = 0x08,
 	CMDTIM 		= 0x52,
 	ARTTIM0 	= 0x53,
 	DRWTIM0 	= 0x54,
@@ -328,9 +331,17 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 			.port_ops = &cmd648_port_ops
 		}
 	};
-	const struct ata_port_info *ppi[] = { &cmd_info[id->driver_data], NULL };
-	u8 mrdmode;
+	const struct ata_port_info *ppi[] = { 
+		&cmd_info[id->driver_data],
+		&cmd_info[id->driver_data],
+		NULL
+	};
+	u8 mrdmode, reg;
 	int rc;
+	struct pci_dev *bridge = pdev->bus->self;
+	/* mobility split bridges don't report enabled ports correctly */
+	int port_ok = !(bridge && bridge->vendor ==
+			PCI_VENDOR_ID_MOBILITY_ELECTRONICS);
 
 	rc = pcim_enable_device(pdev);
 	if (rc)
@@ -341,11 +352,15 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	if (pdev->device == PCI_DEVICE_ID_CMD_646) {
 		/* Does UDMA work ? */
-		if (pdev->revision > 4)
+		if (pdev->revision > 4) {
 			ppi[0] = &cmd_info[2];
+			ppi[1] = &cmd_info[2];
+		}
 		/* Early rev with other problems ? */
-		else if (pdev->revision == 1)
+		else if (pdev->revision == 1) {
 			ppi[0] = &cmd_info[3];
+			ppi[1] = &cmd_info[3];
+		}
 	}
 
 	pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64);
@@ -354,6 +369,21 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	mrdmode |= 0x02;	/* Memory read line enable */
 	pci_write_config_byte(pdev, MRDMODE, mrdmode);
 
+	/* check for enabled ports */
+	pci_read_config_byte(pdev, CNTRL, &reg);
+	if (port_ok)
+		dev_printk(KERN_NOTICE, &pdev->dev, "Mobility Bridge detected, ignoring CNTRL port enable/disable\n");
+	/* 643 and 646 no UDMA, primary port always enabled */
+	if (port_ok && id->driver_data > 1 && !(reg & CNTRL_PRIMARY)) {
+		dev_printk(KERN_NOTICE, &pdev->dev, "Primary port is disabled\n");
+		ppi[0] = &ata_dummy_port_info;
+		
+	}
+	if (port_ok && !(reg & CNTRL_SECONDARY)) {
+		dev_printk(KERN_NOTICE, &pdev->dev, "Secondary port is disabled\n");
+		ppi[1] = &ata_dummy_port_info;
+	}
+
 	/* Force PIO 0 here.. */
 
 	/* PPC specific fixup copied from old driver */
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 4e2c915..7a0ac45 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -608,6 +608,8 @@
 #define PCI_DEVICE_ID_MATROX_G550	0x2527
 #define PCI_DEVICE_ID_MATROX_VIA	0x4536
 
+#define PCI_VENDOR_ID_MOBILITY_ELECTRONICS	0x14f2
+
 #define PCI_VENDOR_ID_CT		0x102c
 #define PCI_DEVICE_ID_CT_69000		0x00c0
 #define PCI_DEVICE_ID_CT_65545		0x00d8


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> On Tue, 19 Apr 2011, James Bottomley wrote:
> 
> > > Which part of me telling you that you will break lots of other things in
> > > the core kernel dont you get?
> >
> > I get that you tell me this ... however, the systems that, according to
> > you, should be failing to get to boot prompt do, in fact, manage it.
> 
> If you dont use certain subsystems then it may work. Also do you run with
> debuggin on.
> 
> The following patch is I think what would be needed to fix it.

I'm worry about this patch. A lot of mm code assume !NUMA systems 
only have node 0. Not only SLUB.

I'm not sure why this unfortunate mismatch occur. but I think DISCONTIG
hacks makes less sense. Can we consider parisc turn NUMA on instead?



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On Tue, 2011-04-19 at 16:58 -0500, Christoph Lameter wrote:
> On Tue, 19 Apr 2011, James Bottomley wrote:
> 
> > > Which part of me telling you that you will break lots of other things in
> > > the core kernel dont you get?
> >
> > I get that you tell me this ... however, the systems that, according to
> > you, should be failing to get to boot prompt do, in fact, manage it.
> 
> If you dont use certain subsystems then it may work. Also do you run with
> debuggin on.
> 
> The following patch is I think what would be needed to fix it.

Not really: crashes immediately on boot

[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00008870 00000491 00000000 00000002 3e0505e7352af710 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000301
[    0.000000] CPUID vers 20 rev 4 (0x00000284)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/800/rp3440  
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
[    0.000000] Total Memory: 2046 MB
[    0.000000] initrd: 7f390000-7ffedf6d
[    0.000000] initrd: reserving 3f390000-3ffedf6d (mem_max 7fe00000)
[    0.000000] ------------[ cut here ]------------
[    0.000000] kernel BUG at mm/mm_init.c:127!
[    0.000000] 
[    0.000000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[    0.000000] PSW: 00001000000001001111111100001110 Not tainted
[    0.000000] r00-03  000000ff0804ff0e 000000004076a640 0000000040798c50 0000004080000000
[    0.000000] r04-07  0000000040746e40 0000000004040000 0000000000000001 0000000040654150
[    0.000000] r08-11  00000000405bd540 000000000407fe00 0000000000000001 0000000000000000
[    0.000000] r12-15  00000000405bc740 000f000000000000 00000000000001ff 000000004076a640
[    0.000000] r16-19  00000000000000ff 0000000000000000 2000000000000000 0000000000000000
[    0.000000] r20-23  0000004080000000 00000000405bd908 0000000000000000 0000000004040000
[    0.000000] r24-27  0000000000000001 0000000000000000 0000004080000000 0000000040746e40
[    0.000000] r28-31  2000000000000000 00000000405b0610 00000000405b0640 0000000000000000
[    0.000000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    0.000000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    0.000000] 
[    0.000000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040798fac 0000000040798fb0
[    0.000000]  IIR: 03ffe01f    ISR: 0000000010350000  IOR: 0000010000000000
[    0.000000]  CPU:        0   CR30: 00000000405b0000 CR31: fffffff0f0e098e0
[    0.000000]  ORIG_R28: 000000000003fe00
[    0.000000]  IAOQ[0]: mminit_verify_page_links+0x84/0xa0
[    0.000000]  IAOQ[1]: mminit_verify_page_links+0x88/0xa0
[    0.000000]  RP(r2): memmap_init_zone+0x148/0x2a0
[    0.000000] Backtrace:
[    0.000000]  [<0000000040798c50>] memmap_init_zone+0x148/0x2a0
[    0.000000]  [<0000000040777ca8>] free_area_init_node+0x3c8/0x518
[    0.000000]  [<000000004076fde0>] paging_init+0x928/0xb20
[    0.000000]  [<0000000040770a48>] setup_arch+0xe8/0x120
[    0.000000]  [<000000004076c9a0>] start_kernel+0xf0/0x830
[    0.000000]  [<000000004011f4fc>] start_parisc+0xa4/0xb8
[    0.000000]  [<00000000404b0f0c>] packet_ioctl+0x1e4/0x208
[    0.000000]  [<00000000404a79d0>] unix_ioctl+0x70/0x168
[    0.000000]  [<0000000040482d24>] ip_mc_gsfget+0x14c/0x200
[    0.000000]  [<000000004046cc20>] raw_ioctl+0xe8/0x118
[    0.000000]  [<000000004044f524>] do_tcp_getsockopt+0x5c4/0x5d0
[    0.000000]  [<0000000040432d64>] netlink_getsockopt+0x15c/0x178
[    0.000000] 
[    0.000000] Backtrace:
[    0.000000]  [<000000004011f984>] show_stack+0x14/0x20
[    0.000000]  [<000000004011f9a8>] dump_stack+0x18/0x28
[    0.000000]  [<000000004012022c>] die_if_kernel+0x194/0x258
[    0.000000]  [<0000000040120b30>] handle_interruption+0x840/0x8f8
[    0.000000]  [<0000000040798fac>] mminit_verify_page_links+0x84/0xa0
[    0.000000] 
[    0.000000] ---[ end trace 139ce121c98e96c9 ]---
[    0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
[    0.000000] Backtrace:
[    0.000000]  [<000000004011f984>] show_stack+0x14/0x20
[    0.000000]  [<000000004011f9a8>] dump_stack+0x18/0x28
[    0.000000]  [<000000004015945c>] panic+0xd4/0x368
[    0.000000]  [<000000004015f054>] do_exit+0x89c/0x9d8
[    0.000000]  [<00000000401202d4>] die_if_kernel+0x23c/0x258
[    0.000000]  [<0000000040120b30>] handle_interruption+0x840/0x8f8
[    0.000000]  [<0000000040798fac>] mminit_verify_page_links+0x84/0xa0
[    0.000000] 

There's a lot more to discontigmem than just page_to_nid ... there's the
whole pfn_to_nid() thing as well

James


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Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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On Wed, 2011-04-20 at 10:23 +0900, KOSAKI Motohiro wrote:
> > On Tue, 19 Apr 2011, James Bottomley wrote:
> > 
> > > > Which part of me telling you that you will break lots of other things in
> > > > the core kernel dont you get?
> > >
> > > I get that you tell me this ... however, the systems that, according to
> > > you, should be failing to get to boot prompt do, in fact, manage it.
> > 
> > If you dont use certain subsystems then it may work. Also do you run with
> > debuggin on.
> > 
> > The following patch is I think what would be needed to fix it.
> 
> I'm worry about this patch. A lot of mm code assume !NUMA systems 
> only have node 0. Not only SLUB.
> 
> I'm not sure why this unfortunate mismatch occur. but I think DISCONTIG
> hacks makes less sense. Can we consider parisc turn NUMA on instead?

Well, you mean a patch like this?  It won't build ... obviously we need
some more machinery

  CC      arch/parisc/kernel/asm-offsets.s
In file included from include/linux/sched.h:78,
                 from arch/parisc/kernel/asm-offsets.c:31:
include/linux/topology.h:212:2: error: #error Please define an appropriate SD_NODE_INIT in include/asm/topology.h!!!
In file included from include/linux/sched.h:78,
                 from arch/parisc/kernel/asm-offsets.c:31:
include/linux/topology.h: In function 'numa_node_id':
include/linux/topology.h:255: error: implicit declaration of function 'cpu_to_node'

James

---

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 69ff049..ffe4058 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -261,6 +261,9 @@ config HPUX
 	bool "Support for HP-UX binaries"
 	depends on !64BIT
 
+config NUMA
+       def_bool n
+
 config NR_CPUS
 	int "Maximum number of CPUs (2-32)"
 	range 2 32
diff --git a/mm/Kconfig b/mm/Kconfig
index e9c0c61..17a1474 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -64,6 +64,7 @@ endchoice
 config DISCONTIGMEM
 	def_bool y
 	depends on (!SELECT_MEMORY_MODEL && ARCH_DISCONTIGMEM_ENABLE) || DISCONTIGMEM_MANUAL
+	select NUMA
 
 config SPARSEMEM
 	def_bool y



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> On Wed, 2011-04-20 at 10:23 +0900, KOSAKI Motohiro wrote:
> > > On Tue, 19 Apr 2011, James Bottomley wrote:
> > >=20
> > > > > Which part of me telling you that you will break lots of other =
things in
> > > > > the core kernel dont you get?
> > > >
> > > > I get that you tell me this ... however, the systems that, accord=
ing to
> > > > you, should be failing to get to boot prompt do, in fact, manage =
it.
> > >=20
> > > If you dont use certain subsystems then it may work. Also do you ru=
n with
> > > debuggin on.
> > >=20
> > > The following patch is I think what would be needed to fix it.
> >=20
> > I'm worry about this patch. A lot of mm code assume !NUMA systems=20
> > only have node 0. Not only SLUB.
> >=20
> > I'm not sure why this unfortunate mismatch occur. but I think DISCONT=
IG
> > hacks makes less sense. Can we consider parisc turn NUMA on instead?
>=20
> Well, you mean a patch like this?  It won't build ... obviously we need
> some more machinery
>=20
>   CC      arch/parisc/kernel/asm-offsets.s
> In file included from include/linux/sched.h:78,
>                  from arch/parisc/kernel/asm-offsets.c:31:
> include/linux/topology.h:212:2: error: #error Please define an appropri=
ate SD_NODE_INIT in include/asm/topology.h!!!
> In file included from include/linux/sched.h:78,
>                  from arch/parisc/kernel/asm-offsets.c:31:
> include/linux/topology.h: In function 'numa_node_id':
> include/linux/topology.h:255: error: implicit declaration of function '=
cpu_to_node'

Sorry about that. I'll see more carefully the code later. Probably long
time discontig-mem uninterest made multiple level breakage. Grr. ;-)



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On Wed, Apr 20, 2011 at 4:23 AM, KOSAKI Motohiro
<kosaki.motohiro@jp.fujitsu.com> wrote:
> I'm worry about this patch. A lot of mm code assume !NUMA systems
> only have node 0. Not only SLUB.

So is that a valid assumption or not? Christoph seems to think it is
and James seems to think it's not. Which way should we aim to fix it?
Would be nice if other people chimed in as we already know what James
and Christoph think.

                        Pekka
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> On Wed, Apr 20, 2011 at 4:23 AM, KOSAKI Motohiro
> <kosaki.motohiro@jp.fujitsu.com> wrote:
> > I'm worry about this patch. A lot of mm code assume !NUMA systems
> > only have node 0. Not only SLUB.
> 
> So is that a valid assumption or not? Christoph seems to think it is
> and James seems to think it's not. Which way should we aim to fix it?
> Would be nice if other people chimed in as we already know what James
> and Christoph think.

I'm sorry. I don't know it really. The fact was gone into historical myst. ;-)

Now, CONFIG_NUMA has mainly five meanings.

1) system may has !0 node id.
2) compile mm/mempolicy.c (ie enable mempolicy APIs)
3) Allocator (kmalloc, vmalloc, alloc_page, et al) awake NUMA topology.
4) enable zone-reclaim feature
5) scheduler makes per-node load balancing scheduler domain

Anyway, we have to fix this issue.  I'm digging which fixing way has least risk.


btw, x86 don't have an issue. Probably it's a reason why this issue was neglected
long time.

arch/x86/Kconfig
-------------------------------------
config ARCH_DISCONTIGMEM_ENABLE
        def_bool y
        depends on NUMA && X86_32



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Cc: Christoph Lameter <cl@linux.com>,
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Hi!

On Wed, Apr 20, 2011 at 4:23 AM, KOSAKI Motohiro
>> <kosaki.motohiro@jp.fujitsu.com> wrote:
>> > I'm worry about this patch. A lot of mm code assume !NUMA systems
>> > only have node 0. Not only SLUB.
>>
>> So is that a valid assumption or not? Christoph seems to think it is
>> and James seems to think it's not. Which way should we aim to fix it=
?
>> Would be nice if other people chimed in as we already know what Jame=
s
>> and Christoph think.

On Wed, Apr 20, 2011 at 10:15 AM, KOSAKI Motohiro
<kosaki.motohiro@jp.fujitsu.com> wrote:
> I'm sorry. I don't know it really. The fact was gone into historical =
myst. ;-)
>
> Now, CONFIG_NUMA has mainly five meanings.
>
> 1) system may has !0 node id.
> 2) compile mm/mempolicy.c (ie enable mempolicy APIs)
> 3) Allocator (kmalloc, vmalloc, alloc_page, et al) awake NUMA topolog=
y.
> 4) enable zone-reclaim feature
> 5) scheduler makes per-node load balancing scheduler domain
>
> Anyway, we have to fix this issue. =A0I'm digging which fixing way ha=
s least risk.
>
>
> btw, x86 don't have an issue. Probably it's a reason why this issue w=
as neglected
> long time.
>
> arch/x86/Kconfig
> -------------------------------------
> config ARCH_DISCONTIGMEM_ENABLE
> =A0 =A0 =A0 =A0def_bool y
> =A0 =A0 =A0 =A0depends on NUMA && X86_32

That part makes me think the best option is to make parisc do
CONFIG_NUMA as well regardless of the historical intent was.

                        Pekka
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On Tue, Apr 19, 2011 at 23:29, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> Slub makes assumptions about page_to_nid() which are violated by
> DISCONTIGMEM and !NUMA. =C2=A0This violation results in a panic becau=
se
> page_to_nid() can be non-zero for pages in the discontiguous ranges a=
nd
> this leads to a null return by get_node(). =C2=A0The assertion by the
> maintainer is that DISCONTIGMEM should only be allowed when NUMA is a=
lso
> defined. =C2=A0However, at least six architectures: alpha, ia64, m32r=
, m68k,
> mips, parisc violate this. =C2=A0The panic is a regression against sl=
ab, so
> just mark slub broken in the problem configuration to prevent users
> reporting these panics.

How does the problem manifest itself? We're having a problem on m68k, w=
hich
seems to go away when switching from SLUB to SLAB, or when reverting a =
commit
in [2] (probably this was never reported upstream).

References:
[1] http://www.mail-archive.com/linux-m68k@vger.kernel.org/msg02812.htm=
l
[2] http://www.spinics.net/lists/linux-m68k/msg03401.html

> Cc: stable@kernel.org
> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
>
> ---
>
> diff --git a/init/Kconfig b/init/Kconfig
> index 56240e7..a7ad8fb 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -1226,6 +1226,7 @@ config SLAB
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0per cpu and per node queues.
>
> =C2=A0config SLUB
> + =C2=A0 =C2=A0 =C2=A0 depends on BROKEN || NUMA || !DISCONTIGMEM
> =C2=A0 =C2=A0 =C2=A0 =C2=A0bool "SLUB (Unqueued Allocator)"
> =C2=A0 =C2=A0 =C2=A0 =C2=A0help
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 SLUB is a slab allocator that mini=
mizes cache line usage

Gr{oetje,eeting}s,

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 =C2=A0=C2=A0 -- Linus Torvalds
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to expand_upwards
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Cc: kosaki.motohiro@jp.fujitsu.com, Christoph Lameter <cl@linux.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	Michal Hocko <mhocko@suse.cz>,
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To: Pekka Enberg <penberg@kernel.org>
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> > btw, x86 don't have an issue. Probably it's a reason why this issue=
 was neglected
> > long time.
> >
> > arch/x86/Kconfig
> > -------------------------------------
> > config ARCH_DISCONTIGMEM_ENABLE
> > =A0 =A0 =A0 =A0def_bool y
> > =A0 =A0 =A0 =A0depends on NUMA && X86_32
>=20
> That part makes me think the best option is to make parisc do
> CONFIG_NUMA as well regardless of the historical intent was.
>=20
>                         Pekka

This?

compile test only.

---
 arch/parisc/Kconfig            |    7 +++++++
 include/asm-generic/topology.h |    4 ----
 include/linux/topology.h       |    2 +-
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 69ff049..0bf9ae8 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -229,6 +229,12 @@ config HOTPLUG_CPU
 	default y if SMP
 	select HOTPLUG
=20
+config NUMA
+	bool "NUMA support"
+	help
+	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
+	  Access).
+
 config ARCH_SELECT_MEMORY_MODEL
 	def_bool y
 	depends on 64BIT
@@ -236,6 +242,7 @@ config ARCH_SELECT_MEMORY_MODEL
 config ARCH_DISCONTIGMEM_ENABLE
 	def_bool y
 	depends on 64BIT
+	depends on NUMA
=20
 config ARCH_FLATMEM_ENABLE
 	def_bool y
diff --git a/include/asm-generic/topology.h b/include/asm-generic/topol=
ogy.h
index fc824e2..932567b 100644
--- a/include/asm-generic/topology.h
+++ b/include/asm-generic/topology.h
@@ -27,8 +27,6 @@
 #ifndef _ASM_GENERIC_TOPOLOGY_H
 #define _ASM_GENERIC_TOPOLOGY_H
=20
-#ifndef	CONFIG_NUMA
-
 /* Other architectures wishing to use this simple topology API should =
fill
    in the below functions as appropriate in their own <asm/topology.h>=
 file. */
 #ifndef cpu_to_node
@@ -60,8 +58,6 @@
 				 cpumask_of_node(pcibus_to_node(bus)))
 #endif
=20
-#endif	/* CONFIG_NUMA */

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> +	struct pci_dev *bridge = pdev->bus->self;
> +	/* mobility split bridges don't report enabled ports correctly */
> +	int port_ok = !(bridge && bridge->vendor ==
> +			PCI_VENDOR_ID_MOBILITY_ELECTRONICS);
>  

The logic seems wrong even by inspection

port_ok will be 1 if it isn't a M/E bridge.

> +	/* check for enabled ports */
> +	pci_read_config_byte(pdev, CNTRL, &reg);
> +	if (port_ok)
> +		dev_printk(KERN_NOTICE, &pdev->dev, "Mobility Bridge detected, ignoring CNTRL port enable/disable\n");

If its *not* an ME bridge then print the warning ????


Otherwise looks right
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Subject: Re: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on boot
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Hello.

On 20-04-2011 3:11, James Bottomley wrote:

>> Beats me then. Whatever - its easy enough to work around and avoid
>> exploding parisc and sparc so it definitely wants sorting

> OK, so are we all agreed on this (I'll split it up into the cosmetic
> libata piece and the cmd64x fix later)?

> James

> ---

> diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
> index f8380ce..b1b926c 100644
> --- a/drivers/ata/libata-sff.c
> +++ b/drivers/ata/libata-sff.c
> @@ -2447,13 +2447,18 @@ int ata_pci_sff_activate_host(struct ata_host *host,
>   		return -ENOMEM;
>
>   	if (!legacy_mode&&  pdev->irq) {
> +		int i;
> +
>   		rc = devm_request_irq(dev, pdev->irq, irq_handler,
>   				      IRQF_SHARED, drv_name, host);
>   		if (rc)
>   			goto out;
>
> -		ata_port_desc(host->ports[0], "irq %d", pdev->irq);
> -		ata_port_desc(host->ports[1], "irq %d", pdev->irq);
> +		for (i = 0; i < 2; i++) {
> +			if (ata_port_is_dummy(host->ports[i]))
> +				continue;
> +			ata_port_desc(host->ports[i], "irq %d", pdev->irq);

    Does this really makes any difference?

> diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
> index 905ff76..c39fd5a 100644
> --- a/drivers/ata/pata_cmd64x.c
> +++ b/drivers/ata/pata_cmd64x.c
> @@ -41,6 +41,9 @@
>   enum {
>   	CFR 		= 0x50,
>   		CFR_INTR_CH0  = 0x04,
> +	CNTRL		= 0x51,
> +		CNTRL_PRIMARY   = 0x04,
> +		CNTRL_SECONDARY = 0x08,

    Probably better to call them CNTRL_CH0 and CNTRL_CH1 to keep the naming in 
line with already existing one...

> @@ -328,9 +331,17 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
>   			.port_ops =&cmd648_port_ops
>   		}
>   	};
> -	const struct ata_port_info *ppi[] = {&cmd_info[id->driver_data], NULL };
> -	u8 mrdmode;
> +	const struct ata_port_info *ppi[] = {
> +		&cmd_info[id->driver_data],
> +		&cmd_info[id->driver_data],
> +		NULL
> +	};
> +	u8 mrdmode, reg;
>   	int rc;
> +	struct pci_dev *bridge = pdev->bus->self;
> +	/* mobility split bridges don't report enabled ports correctly */
> +	int port_ok = !(bridge && bridge->vendor ==
> +			PCI_VENDOR_ID_MOBILITY_ELECTRONICS);
>
>   	rc = pcim_enable_device(pdev);
>   	if (rc)
> @@ -354,6 +369,21 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
>   	mrdmode |= 0x02;	/* Memory read line enable */
>   	pci_write_config_byte(pdev, MRDMODE, mrdmode);
>
> +	/* check for enabled ports */
> +	pci_read_config_byte(pdev, CNTRL,&reg);
> +	if (port_ok)

    You mean !port_ok.

> +		dev_printk(KERN_NOTICE, &pdev->dev, "Mobility Bridge detected, ignoring CNTRL port enable/disable\n");
> +	/* 643 and 646 no UDMA, primary port always enabled */
> +	if (port_ok && id->driver_data > 1 &&  !(reg & CNTRL_PRIMARY)) {

    PCI0646U and later revisions on PCI0646 do have the primary port enable 
bit. The same about UltraDMA -- PCI0646U2 has it. Look at what cmd64x does in 
cmd64x_init_one()...

> diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
> index 4e2c915..7a0ac45 100644
> --- a/include/linux/pci_ids.h
> +++ b/include/linux/pci_ids.h
> @@ -608,6 +608,8 @@
>   #define PCI_DEVICE_ID_MATROX_G550	0x2527
>   #define PCI_DEVICE_ID_MATROX_VIA	0x4536
>
> +#define PCI_VENDOR_ID_MOBILITY_ELECTRONICS	0x14f2
> +

    The current trend seems to be to only define vendor/device IDs where they 
are used and not in pci_ids.h...

MBR, Sergei
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On Wed, Apr 20, 2011 at 10:34:23AM +0300, Pekka Enberg wrote:
> That part makes me think the best option is to make parisc do
> CONFIG_NUMA as well regardless of the historical intent was.

But it's not just parisc.  It's six other architectures as well, some
of which aren't even SMP.  Does !SMP && NUMA make any kind of sense?

I think really, this is just a giant horrible misunderstanding on the part
of the MM people.  There's no reason why an ARM chip with 16MB of memory
at 0 and 16MB of memory at 1GB should be saddled with all the NUMA gunk.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."

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Hi Matthew,

On Wed, Apr 20, 2011 at 10:34:23AM +0300, Pekka Enberg wrote:
>> That part makes me think the best option is to make parisc do
>> CONFIG_NUMA as well regardless of the historical intent was.

On Wed, Apr 20, 2011 at 2:20 PM, Matthew Wilcox <matthew@wil.cx> wrote:
> But it's not just parisc. =A0It's six other architectures as well, so=
me
> of which aren't even SMP. =A0Does !SMP && NUMA make any kind of sense=
?

IIRC, we actually fixed SLAB or SLUB to work on such configs in the pas=
t.

On Wed, Apr 20, 2011 at 2:20 PM, Matthew Wilcox <matthew@wil.cx> wrote:
> I think really, this is just a giant horrible misunderstanding on the=
 part
> of the MM people. =A0There's no reason why an ARM chip with 16MB of m=
emory
> at 0 and 16MB of memory at 1GB should be saddled with all the NUMA gu=
nk.

Right. My point was simply that since x86 doesn't support DISCONTIGMEM
without NUMA, the misunderstanding is likely very wide-spread.

                       Pekka
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On Wed, 20 Apr 2011, KOSAKI Motohiro wrote:

> >                  from arch/parisc/kernel/asm-offsets.c:31:
> > include/linux/topology.h: In function 'numa_node_id':
> > include/linux/topology.h:255: error: implicit declaration of function 'cpu_to_node'
>
> Sorry about that. I'll see more carefully the code later. Probably long
> time discontig-mem uninterest made multiple level breakage. Grr. ;-)

True. Someone needs to go through discontig and make it work right with a
!NUMA configuration. Many pieces of the core code assume that there will
be no node on a !NUMA config today. I guess that was different in ages
past.

Maybe we should make DISCONTIG broken under !NUMA until that time?

Tejon was working on getting rid of DISCONTIG. SPARSEMEM is the favored
alternative today. So we could potentially change the arches to use SPARSE
configs in the !NUMA case.


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On Wed, 20 Apr 2011, Geert Uytterhoeven wrote:

> On Tue, Apr 19, 2011 at 23:29, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> > Slub makes assumptions about page_to_nid() which are violated by
> > DISCONTIGMEM and !NUMA. =C2=A0This violation results in a panic because
> > page_to_nid() can be non-zero for pages in the discontiguous ranges and
> > this leads to a null return by get_node(). =C2=A0The assertion by the
> > maintainer is that DISCONTIGMEM should only be allowed when NUMA is als=
o
> > defined. =C2=A0However, at least six architectures: alpha, ia64, m32r, =
m68k,
> > mips, parisc violate this. =C2=A0The panic is a regression against slab=
, so
> > just mark slub broken in the problem configuration to prevent users
> > reporting these panics.
>
> How does the problem manifest itself? We're having a problem on m68k, whi=
ch
> seems to go away when switching from SLUB to SLAB, or when reverting a co=
mmit
> in [2] (probably this was never reported upstream).

The NULL pointer dereference is typical. If SLUB breaks in this way then
other things are also not functioning in the core.

Guess you are also using DISCONTIG in !NUMA?
---1463811839-557332752-1303307665=:8634--

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Cc: Pekka Enberg <penberg@kernel.org>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	Michal Hocko <mhocko@suse.cz>,
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To: Matthew Wilcox <matthew@wil.cx>
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On Wed, 20 Apr 2011, Matthew Wilcox wrote:

> On Wed, Apr 20, 2011 at 10:34:23AM +0300, Pekka Enberg wrote:
> > That part makes me think the best option is to make parisc do
> > CONFIG_NUMA as well regardless of the historical intent was.
>
> But it's not just parisc.  It's six other architectures as well, some
> of which aren't even SMP.  Does !SMP && NUMA make any kind of sense?

Of course not.

> I think really, this is just a giant horrible misunderstanding on the part
> of the MM people.  There's no reason why an ARM chip with 16MB of memory
> at 0 and 16MB of memory at 1GB should be saddled with all the NUMA gunk.

DISCONTIG has fallen out of favor in the last years. SPARSEMEM has largely
replaced it. ARM uses that and does not suffer from these issue.

No one considered the issues of having a !NUMA configuration with
nodes (which DISCONTIG seems to create) when developing core code in the
last years. The implicit assumption has always been that page_to_nid(x)
etc is always zero on a !NUMA configuration.
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On Wed, 20 Apr 2011, Pekka Enberg wrote:

> That part makes me think the best option is to make parisc do
> CONFIG_NUMA as well regardless of the historical intent was.

Another possilibity is to use SPARSEMEM instead? We can do the same for
the other arches that we have done to x86.


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Cc: Matthew Wilcox <matthew@wil.cx>,
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[added linux-arch to cc since we're going to be affecting them]
On Wed, 2011-04-20 at 14:28 +0300, Pekka Enberg wrote:
> Right. My point was simply that since x86 doesn't support DISCONTIGMEM
> without NUMA, the misunderstanding is likely very wide-spread.

Why don't we approach the problem in a few separate ways then. 

     1. We can look at what imposing NUMA on the DISCONTIGMEM archs
        would do ... the embedded ones are going to be hardest hit, but
        if it's not too much extra code, it might be palatable.
     2. The other is that we can audit mm to look at all the node
        assumptions in the non-numa case.  My suspicion is that
        accidentally or otherwise, it mostly works for the normal case,
        so there might not be much needed to pull it back to working
        properly for DISCONTIGMEM.
     3. Finally we could look at deprecating DISCONTIGMEM in favour of
        SPARSEMEM, but we'd still need to fix -stable for that case.
        Especially as it will take time to convert all the architectures

I'm certainly with Matthew: DISCONTIGMEM is supposed to be a lightweight
framework which allows machines with split physical memory ranges to
work.  That's a very common case nowadays.  Numa is supposed to be a
heavyweight framework to preserve node locality for non-uniform memory
access boxes (which none of the DISCONTIGMEM && !NUMA systems are).

James



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On Fri, 15 Apr 2011, James Bottomley wrote:

> I find that the combination of the two patches cures all the segfaults
> I've been seeing in normal compiles and git operations.

In testing, I haven't had any segfaults but there have been a couple
of hpmcs while running the libgomp testsuite.  This tests quite extensively
the LWS code.

I caught on hpmc in flush_instruction_cache_local:

0000000040101184 <flush_instruction_cache_local>:
    40101184:   00 00 58 20     mtsp r0,sr1
    40101188:   20 3b f8 08     ldil L%404f7800,r1
    4010118c:   34 21 03 a0     ldo 1d0(r1),r1
    40101190:   50 3a 00 20     ldd 10(r1),r26
    40101194:   50 39 00 30     ldd 18(r1),r25
    40101198:   50 38 00 40     ldd 20(r1),r24
    4010119c:   50 37 00 50     ldd 28(r1),r23
    401011a0:   00 01 0e 76     rsm 1,r22
    401011a4:   a6 ff a0 28     addib,*= -1,r23,401011c0 <fioneloop>
    401011a8:   cb f7 40 32     movb,<,n r23,r31,401011c8 <fisync>

00000000401011ac <fimanyloop>:
    401011ac:   af ff ff f5     addib,*> -1,r31,401011ac <fimanyloop>
    401011b0:   07 40 42 c0     fice r0(sr1,r26)
    401011b4:   07 59 42 e0     fice,m r25(sr1,r26)
    401011b8:   cb f7 9f dd     movb,tr r23,r31,401011ac <fimanyloop>
    401011bc:   a7 1f e0 0a     addib,*<=,n -1,r24,401011c8 <fisync>

00000000401011c0 <fioneloop>:
    401011c0:   af 1f ff f5     addib,*> -1,r24,401011c0 <fioneloop>
=>  401011c4:   07 59 42 e0     fice,m r25(sr1,r26)

00000000401011c8 <fisync>:
    401011c8:   00 00 04 00     sync
    401011cc:   00 16 18 60     mtsm r22
    401011d0:   e8 40 c0 00     bv r0(rp)
    401011d4:   08 00 02 40     nop

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

PROCESSOR PIM INFORMATION

Original Product Number:  A7136A
Current Product Number:   A7136A


-----------------  Processor 0 HPMC Information - PDC Version: 46.34  ------

Timestamp =   Wed Apr  20 11:57:24 GMT 2011    (20:11:04:20:11:57:24)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0xe800035c00e00000 0x00000000401011c4
       0x57000f7300e00000 0x8400000000800000
       0xf600105e00e00000 0xfffffff0f0c00000
       0x140003b200e00000 0x000000000000000b
       0x5600100b00e00000 0x0000000000000194
       0x5600106400e00000 0xfffffff0f0435110

General Registers 0 - 31
00-03  0000000000000000  00000000404f79d0  000000004011c1e8  00000000405cbe40
04-07  0000000040613d80  0000000000000000  000000000800000f  000000027bed5080
08-11  0000000040462d98  0000000000000000  00000002bf9c6540  0000000000000001
12-15  000000027be61980  000000007d65d240  0000000000000002  000000000000005e
16-19  0000000040623d80  0000000040623d80  000000004051c8fc  00000000ffffffff
20-23  0000000000000000  ffffffffffffffff  000000000800000e  0000000000000000
24-27  000000000000d2f8  0000000000000080  0000000001968380  0000000040613d80
28-31  0000000000000000  0000000172d6ca80  0000000172d6cab0  0000000000000000

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000003b5e  0000000000000000  00000000000000c0  0000000000000020
12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
16-19  00006437fdcb5220  0000000000000000  00000000401011c4  00000000075942e0
20-23  0000000015340006  000000005a168380  000000ff080cff0e  8000000000000000
24-27  0000000000573000  000000027fb92000  fffdffffffdfffef  0000000040002780
28-31  0000000040001540  ffffffffffffff7f  0000000172d6c000  886904b488140042


Space Registers 0 - 7
00-03  0000000000ed7000  0000000000000000  0000000000000000  0000000000ed7800
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x00000000401011c0
Check Type                   = 0x00000000
Cpu State                    = 0x9e000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00ed7800
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000001  4090000000000000
08-11  0000000000032000  0000000040662000  0000000040613d80  0000000040662000
12-15  00000001c0000000  000000004062e580  0000000000000000  0000000040661340
16-19  0000000000000000  0000000040501680  00000000401fb5c0  000000007f0b4000
20-23  00000000401ad2c0  0000000000000000  0000000000000070  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  000000007f08c3a0
28-31  000000004051c1dc  000000000000002f  00000000405b2274  00000000405b2248

PIM Revision                 = 0x0000000000000001
CPU ID                       = 0x0000000000000014
CPU Revision                 = 0x0000000000000031
Cpu Serial Number            = 0x46100b89e43f0503
Check Summary                = 0x8400000000800000
SAL Timestamp                = 0x000000004daeca24
System Firmware Rev.         = 0x00000ba20000121a
PDC Relocation Address       = 0xfffffff0f0c00000
Available Memory             = 0x000000027fe00000
CPU Diagnose Register 2      = 0x3112022000002008
MIB_STAT                     = 0x0000000000000000
MIB_LOG1                     = 0x0000000000555500
MIB_LOG2                     = 0x0000800000000000
MIB_ECC_DATA                 = 0x808800007fffbfd8
ICache Info                  = 0x0000000000000000
DCache Info                  = 0x0000000000000000
Sharedcache Info1            = 0x0800000000440000
Sharedcache Info2            = 0x00000000000000c0
MIB_RSLOG1                   = 0x0000008000000104
MIB_RSLOG2                   = 0x0021010000000000
MIB_RQLOG                    = 0x0045200000082600
MIB_REQLOGa                  = 0x8004520000008200
MIB_REQLOGb                  = 0xc10008a400000100
Reserved                     = 0x0000000000000000
Cache Repair Detail          = 0x0000000000000000

PIM Detail Text:
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On Wed, 2011-04-20 at 14:04 +0400, Sergei Shtylyov wrote:

> > +		dev_printk(KERN_NOTICE, &pdev->dev, "Mobility Bridge detected, ignoring CNTRL port enable/disable\n");
> > +	/* 643 and 646 no UDMA, primary port always enabled */
> > +	if (port_ok && id->driver_data > 1 &&  !(reg & CNTRL_PRIMARY)) {
> 
>     PCI0646U and later revisions on PCI0646 do have the primary port enable 
> bit. The same about UltraDMA -- PCI0646U2 has it. Look at what cmd64x does in 
> cmd64x_init_one()...

Where?  All I see in drivers/ide/cmd64x.c is that it only ignores the
primary for the id->driver_data == 0 case, which is what I originally
coded.

James


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On Wed, 20 Apr 2011, James Bottomley wrote:

>      1. We can look at what imposing NUMA on the DISCONTIGMEM archs
>         would do ... the embedded ones are going to be hardest hit, but
>         if it's not too much extra code, it might be palatable.
>      2. The other is that we can audit mm to look at all the node
>         assumptions in the non-numa case.  My suspicion is that
>         accidentally or otherwise, it mostly works for the normal case,
>         so there might not be much needed to pull it back to working
>         properly for DISCONTIGMEM.

The older code may work. SLAB f.e. does not call page_to_nid() in the
!NUMA case but keeps special metadata structures around in each slab page
that records the node used for allocation. The problem is with new code
added/revised in the last 5 years or so that uses page_to_nid() and
allocates only a single structure for !NUMA. There are also VM_BUG_ONs in
the page allocator that should trigger if page_to_nid() returns strange
values. I wonder why that never occurred.

>      3. Finally we could look at deprecating DISCONTIGMEM in favour
of >         SPARSEMEM, but we'd still need to fix -stable for that case.
>         Especially as it will take time to convert all the architectures

The fix needed is to mark DISCONTIGMEM without NUMA as broken for now. We
need an audit of the core VM before removing that or making it contingent
on the configurations of various VM subsystems.

> I'm certainly with Matthew: DISCONTIGMEM is supposed to be a lightweight
> framework which allows machines with split physical memory ranges to
> work.  That's a very common case nowadays.  Numa is supposed to be a
> heavyweight framework to preserve node locality for non-uniform memory
> access boxes (which none of the DISCONTIGMEM && !NUMA systems are).

Well yes but we have SPARSE for that today. DISCONTIG with multiple per
pgdat structures in a !NUMA case is just weird and unexpected for many who
have done VM coding in the last years.

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On Wed, 2011-04-20 at 09:28 -0500, James Bottomley wrote:
> On Wed, 2011-04-20 at 14:04 +0400, Sergei Shtylyov wrote:
> 
> > > +		dev_printk(KERN_NOTICE, &pdev->dev, "Mobility Bridge detected, ignoring CNTRL port enable/disable\n");
> > > +	/* 643 and 646 no UDMA, primary port always enabled */
> > > +	if (port_ok && id->driver_data > 1 &&  !(reg & CNTRL_PRIMARY)) {
> > 
> >     PCI0646U and later revisions on PCI0646 do have the primary port enable 
> > bit. The same about UltraDMA -- PCI0646U2 has it. Look at what cmd64x does in 
> > cmd64x_init_one()...
> 
> Where?  All I see in drivers/ide/cmd64x.c is that it only ignores the
> primary for the id->driver_data == 0 case, which is what I originally
> coded.

OK, found it ... it's the pdev->revision < 3 check.  

James

---

>From 71be695c796eeaed7b45b3756a101f87b77827c2 Mon Sep 17 00:00:00 2001
From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Mon, 18 Apr 2011 13:52:36 -0700
Subject: [PATCH] pata_cm64x: latest fix for boot crash


diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index f8380ce..b1b926c 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -2447,13 +2447,18 @@ int ata_pci_sff_activate_host(struct ata_host *host,
 		return -ENOMEM;
 
 	if (!legacy_mode && pdev->irq) {
+		int i;
+
 		rc = devm_request_irq(dev, pdev->irq, irq_handler,
 				      IRQF_SHARED, drv_name, host);
 		if (rc)
 			goto out;
 
-		ata_port_desc(host->ports[0], "irq %d", pdev->irq);
-		ata_port_desc(host->ports[1], "irq %d", pdev->irq);
+		for (i = 0; i < 2; i++) {
+			if (ata_port_is_dummy(host->ports[i]))
+				continue;
+			ata_port_desc(host->ports[i], "irq %d", pdev->irq);
+		}
 	} else if (legacy_mode) {
 		if (!ata_port_is_dummy(host->ports[0])) {
 			rc = devm_request_irq(dev, ATA_PRIMARY_IRQ(pdev),
diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
index 905ff76..7bafc16 100644
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -41,6 +41,9 @@
 enum {
 	CFR 		= 0x50,
 		CFR_INTR_CH0  = 0x04,
+	CNTRL		= 0x51,
+		CNTRL_CH0     = 0x04,
+		CNTRL_CH1     = 0x08,
 	CMDTIM 		= 0x52,
 	ARTTIM0 	= 0x53,
 	DRWTIM0 	= 0x54,
@@ -328,9 +331,19 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 			.port_ops = &cmd648_port_ops
 		}
 	};
-	const struct ata_port_info *ppi[] = { &cmd_info[id->driver_data], NULL };
-	u8 mrdmode;
+	const struct ata_port_info *ppi[] = { 
+		&cmd_info[id->driver_data],
+		&cmd_info[id->driver_data],
+		NULL
+	};
+	u8 mrdmode, reg;
 	int rc;
+	struct pci_dev *bridge = pdev->bus->self;
+	/* mobility split bridges don't report enabled ports correctly */
+	int port_ok = !(bridge && bridge->vendor ==
+			PCI_VENDOR_ID_MOBILITY_ELECTRONICS);
+	/* all (with exceptions below) apart from 643 have CNTRL_CH0 bit */
+	int cntrl_ch0_ok = (id->driver_data != 0);
 
 	rc = pcim_enable_device(pdev);
 	if (rc)
@@ -341,11 +354,18 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	if (pdev->device == PCI_DEVICE_ID_CMD_646) {
 		/* Does UDMA work ? */
-		if (pdev->revision > 4)
+		if (pdev->revision > 4) {
 			ppi[0] = &cmd_info[2];
+			ppi[1] = &cmd_info[2];
+		}
 		/* Early rev with other problems ? */
-		else if (pdev->revision == 1)
+		else if (pdev->revision == 1) {
 			ppi[0] = &cmd_info[3];
+			ppi[1] = &cmd_info[3];
+		}
+		/* revs 1,2 have no CNTRL_CH0 */
+		if (pdev->revision < 3)
+			cntrl_ch0_ok = 0;
 	}
 
 	pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64);
@@ -354,6 +374,20 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	mrdmode |= 0x02;	/* Memory read line enable */
 	pci_write_config_byte(pdev, MRDMODE, mrdmode);
 
+	/* check for enabled ports */
+	pci_read_config_byte(pdev, CNTRL, &reg);
+	if (!port_ok)
+		dev_printk(KERN_NOTICE, &pdev->dev, "Mobility Bridge detected, ignoring CNTRL port enable/disable\n");
+	if (port_ok && cntrl_ch0_ok && !(reg & CNTRL_CH0)) {
+		dev_printk(KERN_NOTICE, &pdev->dev, "Primary port is disabled\n");
+		ppi[0] = &ata_dummy_port_info;
+		
+	}
+	if (port_ok && !(reg & CNTRL_CH1)) {
+		dev_printk(KERN_NOTICE, &pdev->dev, "Secondary port is disabled\n");
+		ppi[1] = &ata_dummy_port_info;
+	}
+
 	/* Force PIO 0 here.. */
 
 	/* PPC specific fixup copied from old driver */
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 4e2c915..7a0ac45 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -608,6 +608,8 @@
 #define PCI_DEVICE_ID_MATROX_G550	0x2527
 #define PCI_DEVICE_ID_MATROX_VIA	0x4536
 
+#define PCI_VENDOR_ID_MOBILITY_ELECTRONICS	0x14f2
+
 #define PCI_VENDOR_ID_CT		0x102c
 #define PCI_DEVICE_ID_CT_69000		0x00c0
 #define PCI_DEVICE_ID_CT_65545		0x00d8


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Subject: Re: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on
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On Wed, Apr 20, 2011 at 02:04:10PM +0400, Sergei Shtylyov wrote:
>> +#define PCI_VENDOR_ID_MOBILITY_ELECTRONICS	0x14f2
>> +
>
>    The current trend seems to be to only define vendor/device IDs where 
> they are used and not in pci_ids.h...

Device IDs, yes.  Vendor IDs should always go to the pci_ids.h file, since
they're likely to be used in multiple places.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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Hello.

On 20-04-2011 18:28, James Bottomley wrote:

>>> +		dev_printk(KERN_NOTICE,&pdev->dev, "Mobility Bridge detected, ig=
noring CNTRL port enable/disable\n");
>>> +	/* 643 and 646 no UDMA, primary port always enabled */
>>> +	if (port_ok&&  id->driver_data>  1&&   !(reg&  CNTRL_PRIMARY)) {

    This should probably be:

	if (port_ok && !(id->driver_data =3D=3D 0 || id->driver_data =3D=3D 1 =
&&
	    pdev->revision < 3) && !(reg & CNTRL_PRIMARY)) {

>>      PCI0646U and later revisions on PCI0646 do have the primary por=
t enable
>> bit. The same about UltraDMA -- PCI0646U2 has it. Look at what cmd64=
x does in
>> cmd64x_init_one()...

> Where?  All I see in drivers/ide/cmd64x.c is that it only ignores the
> primary for the id->driver_data =3D=3D 0 case, which is what I origin=
ally
> coded.

    Hm, are we looking at the same driver?

static const struct ide_port_info cmd64x_chipsets[] __devinitdata =3D {
	{	/* 0: CMD643 */
		.name		=3D DRV_NAME,
		.init_chipset	=3D init_chipset_cmd64x,
		.enablebits	=3D {{0x00,0x00,0x00}, {0x51,0x08,0x08}},
		.port_ops	=3D &cmd64x_port_ops,
		.host_flags	=3D IDE_HFLAG_CLEAR_SIMPLEX |
				  IDE_HFLAG_ABUSE_PREFETCH |
				  IDE_HFLAG_SERIALIZE,
		.pio_mask	=3D ATA_PIO5,
		.mwdma_mask	=3D ATA_MWDMA2,
		.udma_mask	=3D 0x00, /* no udma */
	},
	{	/* 1: CMD646 */
		.name		=3D DRV_NAME,
		.init_chipset	=3D init_chipset_cmd64x,
		.enablebits	=3D {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
		.port_ops	=3D &cmd648_port_ops,
		.host_flags	=3D IDE_HFLAG_ABUSE_PREFETCH |
				  IDE_HFLAG_SERIALIZE,
		.pio_mask	=3D ATA_PIO5,
		.mwdma_mask	=3D ATA_MWDMA2,
		.udma_mask	=3D ATA_UDMA2,
	},
	{	/* 2: CMD648 */
		.name		=3D DRV_NAME,
		.init_chipset	=3D init_chipset_cmd64x,
		.enablebits	=3D {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
		.port_ops	=3D &cmd648_port_ops,
		.host_flags	=3D IDE_HFLAG_ABUSE_PREFETCH,
		.pio_mask	=3D ATA_PIO5,
		.mwdma_mask	=3D ATA_MWDMA2,
		.udma_mask	=3D ATA_UDMA4,
	},
	{	/* 3: CMD649 */
		.name		=3D DRV_NAME,
		.init_chipset	=3D init_chipset_cmd64x,
		.enablebits	=3D {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
		.port_ops	=3D &cmd648_port_ops,
		.host_flags	=3D IDE_HFLAG_ABUSE_PREFETCH,
		.pio_mask	=3D ATA_PIO5,
		.mwdma_mask	=3D ATA_MWDMA2,
		.udma_mask	=3D ATA_UDMA5,
	}
};

static int __devinit cmd64x_init_one(struct pci_dev *dev, const struct=20
pci_device_id *id)
{
	struct ide_port_info d;
	u8 idx =3D id->driver_data;

	d =3D cmd64x_chipsets[idx];

	if (idx =3D=3D 1) {
		/*
		 * UltraDMA only supported on PCI646U and PCI646U2, which
		 * correspond to revisions 0x03, 0x05 and 0x07 respectively.
		 * Actually, although the CMD tech support people won't
		 * tell me the details, the 0x03 revision cannot support
		 * UDMA correctly without hardware modifications, and even
		 * then it only works with Quantum disks due to some
		 * hold time assumptions in the 646U part which are fixed
		 * in the 646U2.
		 *
		 * So we only do UltraDMA on revision 0x05 and 0x07 chipsets.
		 */
		if (dev->revision < 5) {
			d.udma_mask =3D 0x00;
			/*
			 * The original PCI0646 didn't have the primary
			 * channel enable bit, it appeared starting with
			 * PCI0646U (i.e. revision ID 3).
			 */
			if (dev->revision < 3) {
				d.enablebits[0].reg =3D 0;
				d.port_ops =3D &cmd64x_port_ops;
				if (dev->revision =3D=3D 1)
					d.dma_ops =3D &cmd646_rev1_dma_ops;
			}
		}
	}

	return ide_pci_init_one(dev, &d, NULL);
}

static const struct pci_device_id cmd64x_pci_tbl[] =3D {
	{ PCI_VDEVICE(CMD, PCI_DEVICE_ID_CMD_643), 0 },
	{ PCI_VDEVICE(CMD, PCI_DEVICE_ID_CMD_646), 1 },
	{ PCI_VDEVICE(CMD, PCI_DEVICE_ID_CMD_648), 2 },
	{ PCI_VDEVICE(CMD, PCI_DEVICE_ID_CMD_649), 3 },
	{ 0, },
};
MODULE_DEVICE_TABLE(pci, cmd64x_pci_tbl);

    "=C3=AFdx =3D=3D 1" corresponds to PCI0646. See this "dev->revision=
 < 3" check=20
(this is true for the original PCI0646), where it then zeroes the 'reg'=
 field=20
of 'enablebits' to disable its checking?

> James

WBR, Sergei
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From - Thu Nov 08 21:07:05 2018
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	 <20110420161615.462D.A69D9226@jp.fujitsu.com>
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Cc: Pekka Enberg <penberg@kernel.org>, Matthew Wilcox <matthew@wil.cx>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Michal Hocko <mhocko@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
	Hugh Dickins <hughd@google.com>, linux-mm@kvack.org,
	LKML <linux-kernel@vger.kernel.org>,
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	Ingo Molnar <mingo@elte.hu>, x86 maintainers <x86@kernel.org>,
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To: Christoph Lameter <cl@linux.com>
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On Wed, 2011-04-20 at 09:50 -0500, Christoph Lameter wrote:
> On Wed, 20 Apr 2011, James Bottomley wrote:
> 
> >      1. We can look at what imposing NUMA on the DISCONTIGMEM archs
> >         would do ... the embedded ones are going to be hardest hit, but
> >         if it's not too much extra code, it might be palatable.
> >      2. The other is that we can audit mm to look at all the node
> >         assumptions in the non-numa case.  My suspicion is that
> >         accidentally or otherwise, it mostly works for the normal case,
> >         so there might not be much needed to pull it back to working
> >         properly for DISCONTIGMEM.
> 
> The older code may work. SLAB f.e. does not call page_to_nid() in the
> !NUMA case but keeps special metadata structures around in each slab page
> that records the node used for allocation. The problem is with new code
> added/revised in the last 5 years or so that uses page_to_nid() and
> allocates only a single structure for !NUMA. There are also VM_BUG_ONs in
> the page allocator that should trigger if page_to_nid() returns strange
> values. I wonder why that never occurred.

Actually, I think slab got changed when discontigmem was added ...
that's why it all works OK.

> >      3. Finally we could look at deprecating DISCONTIGMEM in favour
> of >         SPARSEMEM, but we'd still need to fix -stable for that case.
> >         Especially as it will take time to convert all the architectures
> 
> The fix needed is to mark DISCONTIGMEM without NUMA as broken for now. We
> need an audit of the core VM before removing that or making it contingent
> on the configurations of various VM subsystems.

Don't be stupid ... that would cause six architectures to get marked
broken.

> > I'm certainly with Matthew: DISCONTIGMEM is supposed to be a lightweight
> > framework which allows machines with split physical memory ranges to
> > work.  That's a very common case nowadays.  Numa is supposed to be a
> > heavyweight framework to preserve node locality for non-uniform memory
> > access boxes (which none of the DISCONTIGMEM && !NUMA systems are).
> 
> Well yes but we have SPARSE for that today. DISCONTIG with multiple per
> pgdat structures in a !NUMA case is just weird and unexpected for many who
> have done VM coding in the last years.

Look, I'm not really interested in who understands what.  The fact is we
have six architectures with the possibility for DISCONTIGMEM && !NUMA,
so that's the case we need to fix in -stable.

They oops with SLUB, as far as I can tell, there are still no oops
reports with SLAB.  The simplest -stable fix seems to be to mark SLUB
broken on DISCONTIGMEM && !NUMA.

James


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Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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Cc: Pekka Enberg <penberg@kernel.org>, Matthew Wilcox <matthew@wil.cx>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Michal Hocko <mhocko@suse.cz>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Wed, 20 Apr 2011, James Bottomley wrote:

> > The older code may work. SLAB f.e. does not call page_to_nid() in the
> > !NUMA case but keeps special metadata structures around in each slab page
> > that records the node used for allocation. The problem is with new code
> > added/revised in the last 5 years or so that uses page_to_nid() and
> > allocates only a single structure for !NUMA. There are also VM_BUG_ONs in
> > the page allocator that should trigger if page_to_nid() returns strange
> > values. I wonder why that never occurred.
>
> Actually, I think slab got changed when discontigmem was added ...
> that's why it all works OK.

Could be. I was not around at the time.

> > >      3. Finally we could look at deprecating DISCONTIGMEM in favour
> > of >         SPARSEMEM, but we'd still need to fix -stable for that case.
> > >         Especially as it will take time to convert all the architectures
> >
> > The fix needed is to mark DISCONTIGMEM without NUMA as broken for now. We
> > need an audit of the core VM before removing that or making it contingent
> > on the configurations of various VM subsystems.
>
> Don't be stupid ... that would cause six architectures to get marked
> broken.

Yes they are broken right now. Marking just means showing the user that we
are aware of the situation.

> Look, I'm not really interested in who understands what.  The fact is we
> have six architectures with the possibility for DISCONTIGMEM && !NUMA,
> so that's the case we need to fix in -stable.
>
> They oops with SLUB, as far as I can tell, there are still no oops
> reports with SLAB.  The simplest -stable fix seems to be to mark SLUB
> broken on DISCONTIGMEM && !NUMA.

There is barely any testing going on at all of this since we have had this
issue for more than 5 years and have not noticed it. The absence of bug
reports therefore proves nothing. Code inspection of the VM shows
that this is an issue that arises in multiple subsystems and that we have
VM_BUG_ONs in the page allocator that should trigger for these situations.

Usage of DISCONTIGMEM and !NUMA is not safe and should be flagged as such.


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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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Cc: Pekka Enberg <penberg@kernel.org>, Christoph Lameter <cl@linux.com>, 
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To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
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On Wed, 2011-04-20 at 17:40 +0900, KOSAKI Motohiro wrote:
> > > btw, x86 don't have an issue. Probably it's a reason why this issue was neglected
> > > long time.
> > >
> > > arch/x86/Kconfig
> > > -------------------------------------
> > > config ARCH_DISCONTIGMEM_ENABLE
> > >        def_bool y
> > >        depends on NUMA && X86_32
> > 
> > That part makes me think the best option is to make parisc do
> > CONFIG_NUMA as well regardless of the historical intent was.
> > 
> >                         Pekka
> 
> This?

I'm afraid it doesn't boot (it's another slub crash):

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.39-rc3+ (jejb@ion) (gcc version 4.2.4 (Debian 4.2.4-6)) #30 SMP Wed Apr 20 08:52:23 PDT 2011
[    0.000000] unwind_init: start = 0x4057a000, end = 0x405b0e80, entries = 14056
[    0.000000] WARNING: Out of order unwind entry! 000000004057b470 and 000000004057b480
[    0.000000] WARNING: Out of order unwind entry! 000000004057b480 and 000000004057b490
[    0.000000] WARNING: Out of order unwind entry! 000000004057c160 and 000000004057c170
[    0.000000] WARNING: Out of order unwind entry! 000000004057c170 and 000000004057c180
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00008870 00000491 00000000 00000002 3e0505e7352af710 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000301
[    0.000000] CPUID vers 20 rev 4 (0x00000284)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/800/rp3440  
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
[    0.000000] Total Memory: 2046 MB
[    0.000000] initrd: 7f390000-7ffedaa1
[    0.000000] initrd: reserving 3f390000-3ffedaa1 (mem_max 7fe00000)
[    0.000000] PERCPU: Embedded 10 pages/cpu @00000000418f5000 s12288 r8192 d20480 u40960
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 2 zonelists in Node order, mobility grouping on.  Total pages: 258560
[    0.000000] Policy zone: Normal
[    0.000000] Kernel command line:  root=/dev/sda3 panic=5 console=ttyS1 palo_kernel=1/vmlinux-test
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Memory: 2042228k/2095104k available (3849k kernel code, 52876k reserved, 1661k data, 324k init)
[    0.000000] virtual kernel memory layout:
[    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
[    0.000000]     memory  : 0x0000000040000000 - 0x00000040bfe00000   (264190 MB)
[    0.000000]       .init : 0x000000004077c000 - 0x00000000407cd000   ( 324 kB)
[    0.000000]       .data : 0x00000000404c2518 - 0x0000000040661920   (1661 kB)
[    0.000000]       .text : 0x0000000040100000 - 0x00000000404c2518   (3849 kB)
[    0.000000] SLUB: Genslabs=11, HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=8
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  CONFIG_RCU_FANOUT set to non-default value of 32
[    0.000000]  RCU-based detection of stalled CPUs is disabled.
[    0.000000] NR_IRQS:128
[    0.000000] Console: colour dummy device 160x64
[    0.000000] numa_policy_init: interleaving failed
[    0.000000] Calibrating delay loop... 1594.36 BogoMIPS (lpj=3188736)
[    0.048000] pid_max: default: 32768 minimum: 301
[    0.048000] Security Framework initialized
[    0.048000] SELinux:  Disabled at boot.
[    0.060000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.072000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[    0.076000] Mount-cache hash table entries: 256
[    0.076000] Initializing cgroup subsys ns
[    0.076000] ns_cgroup deprecated: consider using the 'clone_children' flag without the ns_cgroup.
[    0.080000] Initializing cgroup subsys cpuacct
[    0.092000] Initializing cgroup subsys devices
[    0.092000] Initializing cgroup subsys freezer
[    0.100000] Initializing cgroup subsys net_cls
[    0.100000] Initializing cgroup subsys blkio
[    0.200000] Backtrace:
[    0.200000]  [<000000004021c938>] add_partial+0x28/0x98
[    0.200000]  [<000000004021faa0>] __slab_free+0x1d0/0x1d8
[    0.200000]  [<000000004021fd04>] kmem_cache_free+0xc4/0x128
[    0.200000]  [<000000004033bf9c>] ida_get_new_above+0x21c/0x2c0
[    0.200000]  [<00000000402a8980>] sysfs_new_dirent+0xd0/0x238
[    0.200000]  [<00000000402a974c>] create_dir+0x5c/0x168
[    0.200000]  [<00000000402a9ab0>] sysfs_create_dir+0x98/0x128
[    0.200000]  [<000000004033d6c4>] kobject_add_internal+0x114/0x258
[    0.200000]  [<000000004033d9ac>] kobject_add_varg+0x7c/0xa0
[    0.200000]  [<000000004033df20>] kobject_add+0x50/0x90
[    0.200000]  [<000000004033dfb4>] kobject_create_and_add+0x54/0xc8
[    0.200000]  [<00000000407862a0>] cgroup_init+0x138/0x1f0
[    0.200000]  [<000000004077ce50>] start_kernel+0x5a0/0x840
[    0.200000]  [<000000004011fa3c>] start_parisc+0xa4/0xb8
[    0.200000]  [<00000000404bb034>] packet_ioctl+0x16c/0x208
[    0.200000]  [<000000004049ac30>] ip_mroute_setsockopt+0x260/0xf20
[    0.200000] 
[    0.200000] 
[    0.200000] Kernel Fault: Code=26 regs=00000000405bca80 (Addr=0000000000000000)
[    0.200000] 
[    0.200000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[    0.200000] PSW: 00001000000001001111001000001110 Not tainted
[    0.200000] r00-03  000000ff0804f20e 0000000040778360 000000004021c938 0000000000000000
[    0.200000] r04-07  0000000040754b60 0000000000000001 00000000418b1440 000000007ec01280
[    0.200000] r08-11  0000000000000000 00000000405f7380 00000000000003c0 000000007fffffff
[    0.200000] r12-15  00000000405bc7d8 00000000405f7398 00000000405bc6e8 00000000000041ed
[    0.200000] r16-19  00000000f0d00b0c 0000000000000000 0000000000000000 0000000000000000
[    0.200000] r20-23  000000000800000e 0000000000000001 00000000f0000000 000000004033bf9c
[    0.200000] r24-27  0000000000000001 00000000418b1440 0000000000000000 0000000040754b60
[    0.200000] r28-31  000000007ec08000 00000000405bca50 00000000405bca80 000000000000001d
[    0.200000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    0.200000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    0.200000] 
[    0.200000] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004011c0f0 000000004011c0f4
[    0.200000]  IIR: 0f4015dc    ISR: 0000000000000000  IOR: 0000000000000000
[    0.200000]  CPU:        0   CR30: 00000000405bc000 CR31: fffffff0f0e098e0
[    0.200000]  ORIG_R28: 0000000000000100
[    0.200000]  IAOQ[0]: _raw_spin_lock+0x0/0x20
[    0.200000]  IAOQ[1]: _raw_spin_lock+0x4/0x20
[    0.200000]  RP(r2): add_partial+0x28/0x98
[    0.200000] Backtrace:
[    0.200000]  [<000000004021c938>] add_partial+0x28/0x98
[    0.200000]  [<000000004021faa0>] __slab_free+0x1d0/0x1d8
[    0.200000]  [<000000004021fd04>] kmem_cache_free+0xc4/0x128
[    0.200000]  [<000000004033bf9c>] ida_get_new_above+0x21c/0x2c0
[    0.200000]  [<00000000402a8980>] sysfs_new_dirent+0xd0/0x238
[    0.200000]  [<00000000402a974c>] create_dir+0x5c/0x168
[    0.200000]  [<00000000402a9ab0>] sysfs_create_dir+0x98/0x128
[    0.200000]  [<000000004033d6c4>] kobject_add_internal+0x114/0x258
[    0.200000]  [<000000004033d9ac>] kobject_add_varg+0x7c/0xa0
[    0.200000]  [<000000004033df20>] kobject_add+0x50/0x90
[    0.200000]  [<000000004033dfb4>] kobject_create_and_add+0x54/0xc8
[    0.200000]  [<00000000407862a0>] cgroup_init+0x138/0x1f0
[    0.200000]  [<000000004077ce50>] start_kernel+0x5a0/0x840
[    0.200000]  [<000000004011fa3c>] start_parisc+0xa4/0xb8
[    0.200000]  [<00000000404bb034>] packet_ioctl+0x16c/0x208
[    0.200000]  [<000000004049ac30>] ip_mroute_setsockopt+0x260/0xf20
[    0.200000] 
[    0.200000] Kernel panic - not syncing: Kernel Fault
[    0.200000] Backtrace:
[    0.200000]  [<000000004011fec4>] show_stack+0x14/0x20
[    0.200000]  [<000000004011fee8>] dump_stack+0x18/0x28
[    0.200000]  [<000000004015a9a4>] panic+0xd4/0x368
[    0.200000]  [<0000000040120564>] parisc_terminate+0x14c/0x170
[    0.200000]  [<0000000040120adc>] handle_interruption+0x2ac/0x8f8
[    0.200000]  [<000000004011c0f0>] _raw_spin_lock+0x0/0x20
[    0.200000] 
[    0.200000] Rebooting in 5 seconds..

James


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Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
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On Wed, 20 Apr 2011, James Bottomley wrote:

> > > That part makes me think the best option is to make parisc do
> > > CONFIG_NUMA as well regardless of the historical intent was.

Well if it never supported NUMA then this is going to be problematic.
> > >
> > >                         Pekka
> >
> > This?
>
> I'm afraid it doesn't boot (it's another slub crash):

Is there any simulator available that we can use to run a parisc boot?

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
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On Wed, 2011-04-20 at 11:50 -0500, Christoph Lameter wrote:
> > I'm afraid it doesn't boot (it's another slub crash):
> 
> Is there any simulator available that we can use to run a parisc boot?

I don't think we have a simulator.  However, if you send a ssh key to

T-Bone@parisc-linux.org

He can loan you remote access to one of the systems that ESIEE in France
hosts for us.  (he's expecting you).

James


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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Notes about the latest cache patches
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On Wed, 20 Apr 2011, John David Anglin wrote:

> Assists Check                = 0x00ed7800

> Check Summary                = 0x8400000000800000

Seems to be an assist check.  Reported something similar in 2009.
The arch talks about an architecturally defined loop for the fice
instruction (SFU?).  Maybe this is a hardware problem.

The error log contained the following:

82    SFW  0  *7  0xE880035C00E00910 00000000401011C4 ERR_CHECK_HPMC
                                                      20 Apr 2011 11:57:22
83    SFW  1  *7  0xE880035C01E00930 0000000040126638 ERR_CHECK_HPMC
						      20 Apr 2011 11:57:22
84    SFW  0   2  0x57800F7300E00950 8400000000800000 ERR_CPU_CHECK_SUMMARY
						      20 Apr 2011 11:57:22
85    SFW  1   2  0x57800F7301E00970 8400000000800000 ERR_CPU_CHECK_SUMMARY
						      20 Apr 2011 11:57:22
86    SFW  1   2  0x5680100B01E00990 0000000000000194 MC_OS_HPMC_LEN_ERR
						      20 Apr 2011 11:57:22

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.parisc
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
	Pekka Enberg <penberg@kernel.org>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Michal Hocko <mhocko@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
	Hugh Dickins <hughd@google.com>, linux-mm@kvack.org,
	LKML <linux-kernel@vger.kernel.org>,
	linux-parisc@vger.kernel.org, David Rientjes <rientjes@google.com>,
	Ingo Molnar <mingo@elte.hu>, x86 maintainers <x86@kernel.org>,
	linux-arch@vger.kernel.org, Mel Gorman <mel@csn.ul.ie>
To: Christoph Lameter <cl@linux.com>
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On Wed, Apr 20, 2011 at 10:22:04AM -0500, Christoph Lameter wrote:
> There is barely any testing going on at all of this since we have had this
> issue for more than 5 years and have not noticed it. The absence of bug
> reports therefore proves nothing. Code inspection of the VM shows
> that this is an issue that arises in multiple subsystems and that we have
> VM_BUG_ONs in the page allocator that should trigger for these situations.

So ... we've proven that people using these architectures use SLAB
instead of SLUB, don't enable CONFIG_DEBUG_VM and don't use hugepages
(not really a surprise ... nobody's running Oracle on these arches :-)

I don't think that qualifies as "barely any testing".  I think that's
"nobody developing the Linux MM uses one of these architectures".

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."

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From: David Rientjes <rientjes@google.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.parisc
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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Cc: Pekka Enberg <penberg@kernel.org>,
	Christoph Lameter <cl@linux.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	Michal Hocko <mhocko@suse.cz>,
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	LKML <linux-kernel@vger.kernel.org>,
	linux-parisc@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
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To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
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On Wed, 20 Apr 2011, KOSAKI Motohiro wrote:

> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index 69ff049..0bf9ae8 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -229,6 +229,12 @@ config HOTPLUG_CPU
>  	default y if SMP
>  	select HOTPLUG
>  
> +config NUMA
> +	bool "NUMA support"
> +	help
> +	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
> +	  Access).
> +
>  config ARCH_SELECT_MEMORY_MODEL
>  	def_bool y
>  	depends on 64BIT
> @@ -236,6 +242,7 @@ config ARCH_SELECT_MEMORY_MODEL
>  config ARCH_DISCONTIGMEM_ENABLE
>  	def_bool y
>  	depends on 64BIT
> +	depends on NUMA
>  
>  config ARCH_FLATMEM_ENABLE
>  	def_bool y

I think this should probably be

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -244,6 +244,9 @@ config ARCH_DISCONTIGMEM_DEFAULT
 	def_bool y
 	depends on ARCH_DISCONTIGMEM_ENABLE
 
+config NUMA
+	def_bool ARCH_DISCONTIGMEM_ENABLE
+
 config NODES_SHIFT
 	int
 	default "3"

instead since we don't need CONFIG_NUMA for anything other than 
CONFIG_PA8X00 and 64-bit enabled.

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
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Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Pekka Enberg <penberg@kernel.org>,
	Christoph Lameter <cl@linux.com>,
	Michal Hocko <mhocko@suse.cz>,
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	Hugh Dickins <hughd@google.com>, linux-mm@kvack.org,
	LKML <linux-kernel@vger.kernel.org>,
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	x86 maintainers <x86@kernel.org>
To: James Bottomley <James.Bottomley@hansenpartnership.com>
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On Wed, 20 Apr 2011, James Bottomley wrote:

> [    0.200000] Backtrace:
> [    0.200000]  [<000000004021c938>] add_partial+0x28/0x98
> [    0.200000]  [<000000004021faa0>] __slab_free+0x1d0/0x1d8
> [    0.200000]  [<000000004021fd04>] kmem_cache_free+0xc4/0x128
> [    0.200000]  [<000000004033bf9c>] ida_get_new_above+0x21c/0x2c0
> [    0.200000]  [<00000000402a8980>] sysfs_new_dirent+0xd0/0x238
> [    0.200000]  [<00000000402a974c>] create_dir+0x5c/0x168
> [    0.200000]  [<00000000402a9ab0>] sysfs_create_dir+0x98/0x128
> [    0.200000]  [<000000004033d6c4>] kobject_add_internal+0x114/0x258
> [    0.200000]  [<000000004033d9ac>] kobject_add_varg+0x7c/0xa0
> [    0.200000]  [<000000004033df20>] kobject_add+0x50/0x90
> [    0.200000]  [<000000004033dfb4>] kobject_create_and_add+0x54/0xc8
> [    0.200000]  [<00000000407862a0>] cgroup_init+0x138/0x1f0
> [    0.200000]  [<000000004077ce50>] start_kernel+0x5a0/0x840
> [    0.200000]  [<000000004011fa3c>] start_parisc+0xa4/0xb8
> [    0.200000]  [<00000000404bb034>] packet_ioctl+0x16c/0x208
> [    0.200000]  [<000000004049ac30>] ip_mroute_setsockopt+0x260/0xf20
> [    0.200000] 

This is probably because the parisc's DISCONTIGMEM memory ranges don't 
have bits set in N_NORMAL_MEMORY.

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -266,8 +266,10 @@ static void __init setup_bootmem(void)
 	}
 	memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
 
-	for (i = 0; i < npmem_ranges; i++)
+	for (i = 0; i < npmem_ranges; i++) {
+		node_set_state(i, N_NORMAL_MEMORY);
 		node_set_online(i);
+	}
 #endif
 
 	/*
--
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From: David Rientjes <rientjes@google.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.parisc
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Cc: Pekka Enberg <penberg@kernel.org>,
        KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
        Christoph Lameter <cl@linux.com>,
        James Bottomley <James.Bottomley@hansenpartnership.com>,
        Michal Hocko <mhocko@suse.cz>,
        Andrew Morton <akpm@linux-foundation.org>,
        Hugh Dickins <hughd@google.com>, linux-mm@kvack.org,
        LKML <linux-kernel@vger.kernel.org>, linux-parisc@vger.kernel.org,
        Ingo Molnar <mingo@elte.hu>, x86 maintainers <x86@kernel.org>
To: Matthew Wilcox <matthew@wil.cx>
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On Wed, 20 Apr 2011, Matthew Wilcox wrote:

> > That part makes me think the best option is to make parisc do
> > CONFIG_NUMA as well regardless of the historical intent was.
> 
> But it's not just parisc.  It's six other architectures as well, some
> of which aren't even SMP.  Does !SMP && NUMA make any kind of sense?
> 

It does as long as DISCONTIGMEM is hijacking NUMA abstractions throughout 
the code; for example, look at the .config that James is probably using 
for testing here:

	CONFIG_PA8X00=y
	CONFIG_64BIT=y
	CONFIG_DISCONTIGMEM=y
	CONFIG_NEED_MULTIPLE_NODES=y
	CONFIG_NODES_SHIFT=3

and CONFIG_NUMA is not enabled.  So we want CONFIG_NODES_SHIFT of 3 
(because MAX_PHYSMEM_RANGES is 8) and CONFIG_NEED_MULTIPLE_NODES is 
enabled because of DISCONTIGMEM:

	#
	# Both the NUMA code and DISCONTIGMEM use arrays of pg_data_t's
	# to represent different areas of memory.  This variable allows
	# those dependencies to exist individually.
	#
	config NEED_MULTIPLE_NODES
		def_bool y
		depends on DISCONTIGMEM || NUMA

when in reality we should do away with CONFIG_NEED_MULTIPLE_NODES and just 
force DISCONTIGMEM to enable CONFIG_NUMA at least for -stable and as a 
quick fix for James.

In the long run, we'll probably want to define a lighterweight CONFIG_NUMA 
as a layer that CONFIG_DISCONTIGMEM can use for memory range abstractions 
and then CONFIG_NUMA is built on top of it to define proximity between 
those ranges.

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
	Pekka Enberg <penberg@kernel.org>,
	Matthew Wilcox <matthew@wil.cx>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Michal Hocko <mhocko@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
	Hugh Dickins <hughd@google.com>, linux-mm@kvack.org,
	LKML <linux-kernel@vger.kernel.org>,
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To: Christoph Lameter <cl@linux.com>
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On Wed, 20 Apr 2011, Christoph Lameter wrote:

> There is barely any testing going on at all of this since we have had this
> issue for more than 5 years and have not noticed it. The absence of bug
> reports therefore proves nothing. Code inspection of the VM shows
> that this is an issue that arises in multiple subsystems and that we have
> VM_BUG_ONs in the page allocator that should trigger for these situations.
> 
> Usage of DISCONTIGMEM and !NUMA is not safe and should be flagged as such.
> 

We don't actually have any bug reports in front of us that show anything 
else in the VM other than slub has issues with this configuration, so 
marking them as broken is probably premature.  The parisc config that 
triggered this debugging enables CONFIG_SLAB by default, so it probably 
has gone unnoticed just because nobody other than James has actually tried 
it on hppa64.

Let's see if KOSAKI-san's fixes to Kconfig (even though I'd prefer the 
simpler and implicit "config NUMA def_bool ARCH_DISCONTIGMEM_ENABLE" over 
his config NUMA) and my fix to parisc to set the bit in N_NORMAL_MEMORY 
so that CONFIG_SLUB initializes kmem_cache_node correctly works and then 
address issues in the core VM as they arise.  Presumably someone has been 
running DISCONTIGMEM on hppa64 in the past five years without issues with 
defconfig, so the issue here may just be slub.
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From - Thu Nov 08 21:07:06 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
 expand_upwards
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Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Pekka Enberg <penberg@kernel.org>,
	Christoph Lameter <cl@linux.com>,
	Michal Hocko <mhocko@suse.cz>,
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	LKML <linux-kernel@vger.kernel.org>,
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To: David Rientjes <rientjes@google.com>
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On Wed, 2011-04-20 at 14:18 -0700, David Rientjes wrote:
> This is probably because the parisc's DISCONTIGMEM memory ranges don't 
> have bits set in N_NORMAL_MEMORY.
> 
> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -266,8 +266,10 @@ static void __init setup_bootmem(void)
>  	}
>  	memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
>  
> -	for (i = 0; i < npmem_ranges; i++)
> +	for (i = 0; i < npmem_ranges; i++) {
> +		node_set_state(i, N_NORMAL_MEMORY);
>  		node_set_online(i);
> +	}
>  #endif

Yes, this seems to be the missing piece that gets it to boot.  We really
need this in generic code, unless someone wants to run through all the
other arch's doing it ...

James


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From - Thu Nov 08 21:07:06 2018
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From: David Rientjes <rientjes@google.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Pekka Enberg <penberg@kernel.org>,
	Christoph Lameter <cl@linux.com>,
	Michal Hocko <mhocko@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
	Hugh Dickins <hughd@google.com>, linux-mm@kvack.org,
	LKML <linux-kernel@vger.kernel.org>,
	linux-parisc@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
	x86 maintainers <x86@kernel.org>
To: James Bottomley <James.Bottomley@hansenpartnership.com>
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On Wed, 20 Apr 2011, James Bottomley wrote:

> > This is probably because the parisc's DISCONTIGMEM memory ranges don't 
> > have bits set in N_NORMAL_MEMORY.
> > 
> > diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> > --- a/arch/parisc/mm/init.c
> > +++ b/arch/parisc/mm/init.c
> > @@ -266,8 +266,10 @@ static void __init setup_bootmem(void)
> >  	}
> >  	memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
> >  
> > -	for (i = 0; i < npmem_ranges; i++)
> > +	for (i = 0; i < npmem_ranges; i++) {
> > +		node_set_state(i, N_NORMAL_MEMORY);
> >  		node_set_online(i);
> > +	}
> >  #endif
> 
> Yes, this seems to be the missing piece that gets it to boot.  We really
> need this in generic code, unless someone wants to run through all the
> other arch's doing it ...
> 

Looking at all other architectures that allow ARCH_DISCONTIGMEM_ENABLE, we 
already know x86 is fine, avr32 disables ARCH_DISCONTIGMEM_ENABLE entirely 
because its code only brings online node 0, and tile already sets the bit 
in N_NORMAL_MEMORY correctly when bringing a node online, probably because 
it was introduced after the various node state masks were added in 
7ea1530ab3fd back in October 2007.

So we're really only talking about alpha, ia64, m32r, m68k, and mips and 
it only seems to matter when using CONFIG_SLUB, which isn't surprising 
when greping for it:

	$ grep -r N_NORMAL_MEMORY mm/*
	mm/memcontrol.c:	if (!node_state(node, N_NORMAL_MEMORY))
	mm/memcontrol.c:		if (!node_state(node, N_NORMAL_MEMORY))
	mm/page_alloc.c:	[N_NORMAL_MEMORY] = { { [0] = 1UL } },
	mm/page_alloc.c:			node_set_state(zone_to_nid(zone), N_NORMAL_MEMORY);
	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
	mm/slub.c:		for_each_node_state(node, N_NORMAL_MEMORY) {
	mm/slub.c:		for_each_node_state(node, N_NORMAL_MEMORY) {
	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY)

Those memory controller occurrences only result in it passing a node id of 
-1 to kmalloc_node() which means no specific node target, and that's fine 
for DISCONTIGMEM since we don't care about any proximity between memory 
ranges.

This should fix the remaining architectures so they can use CONFIG_SLUB, 
but I hope it can be tested by the individual arch maintainers like you 
did for parisc.

diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c
--- a/arch/alpha/mm/numa.c
+++ b/arch/alpha/mm/numa.c
@@ -245,6 +245,7 @@ setup_memory_node(int nid, void *kernel_end)
 			bootmap_size, BOOTMEM_DEFAULT);
 	printk(" reserving pages %ld:%ld\n", bootmap_start, bootmap_start+PFN_UP(bootmap_size));
 
+	node_set_state(nid, N_NORMAL_MEMORY);
 	node_set_online(nid);
 }
 
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -573,6 +573,8 @@ void __init find_memory(void)
 				  map>>PAGE_SHIFT,
 				  bdp->node_min_pfn,
 				  bdp->node_low_pfn);
+		if (node_present_pages(node))
+			node_set_state(node, N_NORMAL_MEMORY);
 	}
 
 	efi_memmap_walk(filter_rsvd_memory, free_node_bootmem);
diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c
--- a/arch/m32r/kernel/setup.c
+++ b/arch/m32r/kernel/setup.c
@@ -247,7 +247,9 @@ void __init setup_arch(char **cmdline_p)
 
 #ifdef CONFIG_DISCONTIGMEM
 	nodes_clear(node_online_map);
+	node_set_state(0, N_NORMAL_MEMORY);	/* always has memory */
 	node_set_online(0);
+	node_set_state(1, N_NORMAL_MEMORY);	/* always has memory */
 	node_set_online(1);
 #endif	/* CONFIG_DISCONTIGMEM */
 
diff --git a/arch/m68k/mm/init_mm.c b/arch/m68k/mm/init_mm.c
--- a/arch/m68k/mm/init_mm.c
+++ b/arch/m68k/mm/init_mm.c
@@ -59,6 +59,8 @@ void __init m68k_setup_node(int node)
 	}
 #endif
 	pg_data_map[node].bdata = bootmem_node_data + node;
+	if (node_present_pages(node))
+		node_set_state(node, N_NORMAL_MEMORY);
 	node_set_online(node);
 }
 
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c
--- a/arch/mips/sgi-ip27/ip27-memory.c
+++ b/arch/mips/sgi-ip27/ip27-memory.c
@@ -471,6 +471,8 @@ void __init paging_init(void)
 
 		if (end_pfn > max_low_pfn)
 			max_low_pfn = end_pfn;
+		if (end_pfn > start_pfn)
+			node_set_state(node, N_NORMAL_MEMORY);
 	}
 	zones_size[ZONE_NORMAL] = max_low_pfn;
 	free_area_init_nodes(zones_size);
--
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From: David Rientjes <rientjes@google.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [patch] parisc: set memory ranges in N_NORMAL_MEMORY when onlined
Date: Wed, 20 Apr 2011 19:27:13 -0700 (PDT)
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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To: Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
	James Bottomley <jejb@parisc-linux.org>
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When a DISCONTIGMEM memory range is brought online as a NUMA node, it 
also needs to have its bet set in N_NORMAL_MEMORY.  This is necessary for 
generic kernel code that utilizes N_NORMAL_MEMORY as a subset of N_ONLINE 
for memory savings.

These types of hacks can hopefully be removed once DISCONTIGMEM is either 
removed or abstracted away from CONFIG_NUMA.

Fixes a panic in the slub code which only initializes structures for 
N_NORMAL_MEMORY to save memory:

	Backtrace:
	 [<000000004021c938>] add_partial+0x28/0x98
	 [<000000004021faa0>] __slab_free+0x1d0/0x1d8
	 [<000000004021fd04>] kmem_cache_free+0xc4/0x128
	 [<000000004033bf9c>] ida_get_new_above+0x21c/0x2c0
	 [<00000000402a8980>] sysfs_new_dirent+0xd0/0x238
	 [<00000000402a974c>] create_dir+0x5c/0x168
	 [<00000000402a9ab0>] sysfs_create_dir+0x98/0x128
	 [<000000004033d6c4>] kobject_add_internal+0x114/0x258
	 [<000000004033d9ac>] kobject_add_varg+0x7c/0xa0
	 [<000000004033df20>] kobject_add+0x50/0x90
	 [<000000004033dfb4>] kobject_create_and_add+0x54/0xc8
	 [<00000000407862a0>] cgroup_init+0x138/0x1f0
	 [<000000004077ce50>] start_kernel+0x5a0/0x840
	 [<000000004011fa3c>] start_parisc+0xa4/0xb8
	 [<00000000404bb034>] packet_ioctl+0x16c/0x208
	 [<000000004049ac30>] ip_mroute_setsockopt+0x260/0xf20

Tested-by: James Bottomley <James.Bottomley@hansenpartnership.com>
Signed-off-by: David Rientjes <rientjes@google.com>
---
 arch/parisc/mm/init.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -266,8 +266,10 @@ static void __init setup_bootmem(void)
 	}
 	memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
 
-	for (i = 0; i < npmem_ranges; i++)
+	for (i = 0; i < npmem_ranges; i++) {
+		node_set_state(i, N_NORMAL_MEMORY);
 		node_set_online(i);
+	}
 #endif
 
 	/*
--
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> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -266,8 +266,10 @@ static void __init setup_bootmem(void)
>  	}
>  	memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
>  
> -	for (i = 0; i < npmem_ranges; i++)
> +	for (i = 0; i < npmem_ranges; i++) {
> +		node_set_state(i, N_NORMAL_MEMORY);
>  		node_set_online(i);
> +	}
>  #endif


I'm surprised this one. If arch code doesn't initialized N_NORMAL_MEMORY,
(or N_HIGH_MEMORY. N_HIGH_MEMORY == N_NORMAL_MEMORY if CONFIG_HIGHMEM=n)
kswapd is created only at node0. wow.

The initialization must be necessary even if !NUMA, I think. ;-)
Probably we should have revisit all arch code when commit 9422ffba4a 
(Memoryless nodes: No need for kswapd) was introduced, at least.

Thank you David. and I'm sad this multi level unforunate mismatch....


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> On Wed, 20 Apr 2011, James Bottomley wrote:
> 
> > > This is probably because the parisc's DISCONTIGMEM memory ranges don't 
> > > have bits set in N_NORMAL_MEMORY.
> > > 
> > > diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> > > --- a/arch/parisc/mm/init.c
> > > +++ b/arch/parisc/mm/init.c
> > > @@ -266,8 +266,10 @@ static void __init setup_bootmem(void)
> > >  	}
> > >  	memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
> > >  
> > > -	for (i = 0; i < npmem_ranges; i++)
> > > +	for (i = 0; i < npmem_ranges; i++) {
> > > +		node_set_state(i, N_NORMAL_MEMORY);
> > >  		node_set_online(i);
> > > +	}
> > >  #endif
> > 
> > Yes, this seems to be the missing piece that gets it to boot.  We really
> > need this in generic code, unless someone wants to run through all the
> > other arch's doing it ...
> > 
> 
> Looking at all other architectures that allow ARCH_DISCONTIGMEM_ENABLE, we 
> already know x86 is fine, avr32 disables ARCH_DISCONTIGMEM_ENABLE entirely 
> because its code only brings online node 0, and tile already sets the bit 
> in N_NORMAL_MEMORY correctly when bringing a node online, probably because 
> it was introduced after the various node state masks were added in 
> 7ea1530ab3fd back in October 2007.
> 
> So we're really only talking about alpha, ia64, m32r, m68k, and mips and 
> it only seems to matter when using CONFIG_SLUB, which isn't surprising 
> when greping for it:
> 
> 	$ grep -r N_NORMAL_MEMORY mm/*
> 	mm/memcontrol.c:	if (!node_state(node, N_NORMAL_MEMORY))
> 	mm/memcontrol.c:		if (!node_state(node, N_NORMAL_MEMORY))
> 	mm/page_alloc.c:	[N_NORMAL_MEMORY] = { { [0] = 1UL } },
> 	mm/page_alloc.c:			node_set_state(zone_to_nid(zone), N_NORMAL_MEMORY);
> 	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
> 	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
> 	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
> 	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
> 	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
> 	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
> 	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY) {
> 	mm/slub.c:		for_each_node_state(node, N_NORMAL_MEMORY) {
> 	mm/slub.c:		for_each_node_state(node, N_NORMAL_MEMORY) {
> 	mm/slub.c:	for_each_node_state(node, N_NORMAL_MEMORY)
> 
> Those memory controller occurrences only result in it passing a node id of 
> -1 to kmalloc_node() which means no specific node target, and that's fine 
> for DISCONTIGMEM since we don't care about any proximity between memory 
> ranges.
> 
> This should fix the remaining architectures so they can use CONFIG_SLUB, 
> but I hope it can be tested by the individual arch maintainers like you 
> did for parisc.

ia64 and mips have CONFIG_ARCH_POPULATES_NODE_MAP and it initialize
N_NORMAL_MEMORY automatically if my understand is correct.
(plz see free_area_init_nodes)

I guess alpha and m32r have no active developrs. only m68k seems to be need
fix and we have a chance to get a review... 



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From - Thu Nov 08 21:07:06 2018
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From: Tejun Heo <tj@kernel.org>
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Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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Hey,

On Wed, Apr 20, 2011 at 08:50:15AM -0500, Christoph Lameter wrote:
> Tejon was working on getting rid of DISCONTIG. SPARSEMEM is the favored
> alternative today. So we could potentially change the arches to use SPARSE
> configs in the !NUMA case.

Well, the thing is that sparsemem w/ vmemmap is definitely better than
discontigmem on x86-64; however, on x86-32, vmemmap can't be used due
to address space shortage and there are some minor disadvantages to
sparsemem compared to discontigmem.

IIRC, the biggest was losing a bit of granuality in memsections and
possibly wasting slightly more memory on the page array.  Both didn't
seem critical to me but given that the actual amount of code needed
for discontigmem in arch code was fairly small (although the amount of
added complexity for auditing/testing can be much higher) I didn't
feel sure about dropping discontigmem and thus the patchset to drop
discontigmem was posted as RFC, to which nobody commented.

  http://thread.gmane.org/gmane.linux.kernel/1121321

What do you guys think?

Thanks.

-- 
tejun
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On 04/20/2011 10:56 AM, Matthew Wilcox wrote:
> On Wed, Apr 20, 2011 at 02:04:10PM +0400, Sergei Shtylyov wrote:
>>> +#define PCI_VENDOR_ID_MOBILITY_ELECTRONICS	0x14f2
>>> +
>>
>>     The current trend seems to be to only define vendor/device IDs where
>> they are used and not in pci_ids.h...
>
> Device IDs, yes.  Vendor IDs should always go to the pci_ids.h file, since
> they're likely to be used in multiple places.

Correct; that's the current libata policy.

	Jeff



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To: David Rientjes <rientjes@google.com>
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On Wed, 2011-04-20 at 14:42 -0700, David Rientjes wrote:
> On Wed, 20 Apr 2011, Christoph Lameter wrote:
> 
> > There is barely any testing going on at all of this since we have had this
> > issue for more than 5 years and have not noticed it. The absence of bug
> > reports therefore proves nothing. Code inspection of the VM shows
> > that this is an issue that arises in multiple subsystems and that we have
> > VM_BUG_ONs in the page allocator that should trigger for these situations.
> > 
> > Usage of DISCONTIGMEM and !NUMA is not safe and should be flagged as such.
> > 
> 
> We don't actually have any bug reports in front of us that show anything 
> else in the VM other than slub has issues with this configuration, so 
> marking them as broken is probably premature.  The parisc config that 
> triggered this debugging enables CONFIG_SLAB by default, so it probably 
> has gone unnoticed just because nobody other than James has actually tried 
> it on hppa64.
> 
> Let's see if KOSAKI-san's fixes to Kconfig (even though I'd prefer the 
> simpler and implicit "config NUMA def_bool ARCH_DISCONTIGMEM_ENABLE" over 
> his config NUMA) and my fix to parisc to set the bit in N_NORMAL_MEMORY 
> so that CONFIG_SLUB initializes kmem_cache_node correctly works and then 
> address issues in the core VM as they arise.  Presumably someone has been 
> running DISCONTIGMEM on hppa64 in the past five years without issues with 
> defconfig, so the issue here may just be slub.

Actually, we can fix slub.  As far as all my memory hammer tests go, the
one liner below is the actual fix (it just forces slub get_node() to
return the zero node always on !NUMA).  That, as far as a code
inspection goes, seems to make SLUB as good as SLAB ... as long as
no-one uses hugepages or VM DEBUG, which, I think we've demonstrated, is
the case for all the current DISCONTIGMEM users.

I think either the above or just marking slub broken in DISCONTIGMEM & !
NUMA is sufficient for stable.  The fix is getting urgent, because
debian (which is what most of our users are running) has made SLUB the
default allocator, which is why we're now starting to run into these
panic reports.

The set memory range fix looks good for a backport too ... at least the
page cache is now no-longer reluctant to use my upper 1GB ...

I worry a bit more about backporting the selection of NUMA as a -stable
fix because it's a larger change (and requires changes to all the
architectures, since NUMA is an arch local Kconfig variable)

James

----

diff --git a/mm/slub.c b/mm/slub.c
index 94d2a33..243bd9c 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -235,7 +235,11 @@ int slab_is_available(void)
 
 static inline struct kmem_cache_node *get_node(struct kmem_cache *s, int node)
 {
+#ifdef CONFIG_NUMA
 	return s->node[node];
+#else
+	return s->node[0];
+#endif
 }
 
 /* Verify that a pointer has an address that is valid within a slab page */



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On Thu, 2011-04-21 at 22:16 +0900, KOSAKI Motohiro wrote:
> > This should fix the remaining architectures so they can use CONFIG_SLUB, 
> > but I hope it can be tested by the individual arch maintainers like you 
> > did for parisc.
> 
> ia64 and mips have CONFIG_ARCH_POPULATES_NODE_MAP and it initialize
> N_NORMAL_MEMORY automatically if my understand is correct.
> (plz see free_area_init_nodes)
> 
> I guess alpha and m32r have no active developrs. only m68k seems to be need
> fix and we have a chance to get a review... 

Actually, it's not quite a fix yet, I'm afraid.  I've just been
investigating why my main 4 way box got slower with kernel builds:
Apparently userspace processes are now all stuck on CPU0, so we're
obviously tripping over some NUMA scheduling stuff that's missing.

James


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On Thu, 21 Apr 2011, James Bottomley wrote:

> On Thu, 2011-04-21 at 22:16 +0900, KOSAKI Motohiro wrote:
> > > This should fix the remaining architectures so they can use CONFIG_SLUB,
> > > but I hope it can be tested by the individual arch maintainers like you
> > > did for parisc.
> >
> > ia64 and mips have CONFIG_ARCH_POPULATES_NODE_MAP and it initialize
> > N_NORMAL_MEMORY automatically if my understand is correct.
> > (plz see free_area_init_nodes)
> >
> > I guess alpha and m32r have no active developrs. only m68k seems to be need
> > fix and we have a chance to get a review...
>
> Actually, it's not quite a fix yet, I'm afraid.  I've just been
> investigating why my main 4 way box got slower with kernel builds:
> Apparently userspace processes are now all stuck on CPU0, so we're
> obviously tripping over some NUMA scheduling stuff that's missing.

The simplest solution may be to move these arches to use SPARSE instead.
AFAICT this was relatively easy for the arm guys.

Here is short guide on how to do that from the mips people:

http://www.linux-mips.org/archives/linux-mips/2008-08/msg00154.html

http://mytechkorner.blogspot.com/2010/12/sparsemem.html

Dave Hansen, Mel: Can you provide us with some help? (Its Easter and so
the europeans may be off for awhile)

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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	David Rientjes <rientjes@google.com>,
	Pekka Enberg <penberg@kernel.org>,
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To: Christoph Lameter <cl@linux.com>
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On Thu, 2011-04-21 at 13:33 -0500, Christoph Lameter wrote:
> http://www.linux-mips.org/archives/linux-mips/2008-08/msg00154.html
> 
> http://mytechkorner.blogspot.com/2010/12/sparsemem.html
> 
> Dave Hansen, Mel: Can you provide us with some help? (Its Easter and so
> the europeans may be off for awhile) 

Yup, for sure.  It's also interesting how much code ppc64 removed when
they did this:

http://lists.ozlabs.org/pipermail/linuxppc64-dev/2005-November/006646.html

Please cc me on patches.  Or, if nobody else was planning on doing it, I
can take a stab at doing SPARSEMEM on one of the arches.  I won't be
able to _run_ it outside of qemu, but it might be quicker than someone
starting from scratch.

Was it really just m68k and parisc that need immediate attention?

-- Dave

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On Thu, 21 Apr 2011, KOSAKI Motohiro wrote:

> ia64 and mips have CONFIG_ARCH_POPULATES_NODE_MAP and it initialize
> N_NORMAL_MEMORY automatically if my understand is correct.
> (plz see free_area_init_nodes)
> 

ia64 doesn't enable CONFIG_HIGHMEM, so it never gets set via this generic 
code; mips also doesn't enable it for all configs even for 32-bit.

So we'll either want to take check_for_regular_memory() out from under 
CONFIG_HIGHMEM and do it for all configs or teach slub to use 
N_HIGH_MEMORY rather than N_NORMAL_MEMORY.

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On Thu, 21 Apr 2011, KOSAKI Motohiro wrote:

> > diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> > --- a/arch/parisc/mm/init.c
> > +++ b/arch/parisc/mm/init.c
> > @@ -266,8 +266,10 @@ static void __init setup_bootmem(void)
> >  	}
> >  	memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
> >  
> > -	for (i = 0; i < npmem_ranges; i++)
> > +	for (i = 0; i < npmem_ranges; i++) {
> > +		node_set_state(i, N_NORMAL_MEMORY);
> >  		node_set_online(i);
> > +	}
> >  #endif
> 
> 
> I'm surprised this one. If arch code doesn't initialized N_NORMAL_MEMORY,
> (or N_HIGH_MEMORY. N_HIGH_MEMORY == N_NORMAL_MEMORY if CONFIG_HIGHMEM=n)
> kswapd is created only at node0. wow.
> 
> The initialization must be necessary even if !NUMA, I think. ;-)
> Probably we should have revisit all arch code when commit 9422ffba4a 
> (Memoryless nodes: No need for kswapd) was introduced, at least.
> 

I think we may want to just convert slub (and the memory controller) to 
use N_HIGH_MEMORY rather than N_NORMAL_MEMORY since nothing else uses it 
and the generic code seems to handle N_HIGH_MEMORY for all configs 
appropriately.
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On Thu, 21 Apr 2011, David Rientjes wrote:

> I think we may want to just convert slub (and the memory controller) to
> use N_HIGH_MEMORY rather than N_NORMAL_MEMORY since nothing else uses it
> and the generic code seems to handle N_HIGH_MEMORY for all configs
> appropriately.

In 32 bit configurations some architectures (like x86) provide nodes
that have only high memory. Slab allocators only handle normal memory.
SLAB operates in a kind of degraded mode in that case by falling back for
each allocation to the nodes that have normal memory.

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Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>, David Rientjes
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To: Christoph Lameter <cl@linux.com>
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On Thu, 2011-04-21 at 13:33 -0500, Christoph Lameter wrote:
> On Thu, 21 Apr 2011, James Bottomley wrote:
> 
> > On Thu, 2011-04-21 at 22:16 +0900, KOSAKI Motohiro wrote:
> > > > This should fix the remaining architectures so they can use CONFIG_SLUB,
> > > > but I hope it can be tested by the individual arch maintainers like you
> > > > did for parisc.
> > >
> > > ia64 and mips have CONFIG_ARCH_POPULATES_NODE_MAP and it initialize
> > > N_NORMAL_MEMORY automatically if my understand is correct.
> > > (plz see free_area_init_nodes)
> > >
> > > I guess alpha and m32r have no active developrs. only m68k seems to be need
> > > fix and we have a chance to get a review...
> >
> > Actually, it's not quite a fix yet, I'm afraid.  I've just been
> > investigating why my main 4 way box got slower with kernel builds:
> > Apparently userspace processes are now all stuck on CPU0, so we're
> > obviously tripping over some NUMA scheduling stuff that's missing.
> 
> The simplest solution may be to move these arches to use SPARSE instead.
> AFAICT this was relatively easy for the arm guys.
> 
> Here is short guide on how to do that from the mips people:
> 
> http://www.linux-mips.org/archives/linux-mips/2008-08/msg00154.html
> 
> http://mytechkorner.blogspot.com/2010/12/sparsemem.html
> 
> Dave Hansen, Mel: Can you provide us with some help? (Its Easter and so
> the europeans may be off for awhile)

It sort of depends on your definition of easy.  The problem going from
DISCONTIGMEM to SPARSEMEM is sorting out the section size (the minimum
indivisible size for a sectional_mem_map array) and also deciding on
whether you need SPARSEMEM_EXTREME (discontigmem allows arbitrarily
different sizes for each contiguous region) or
ARCH_HAS_HOLES_MEMORYMODEL (allows empty mem_map regions as well).  I
suspect most architectures will want SPARSEMEM_EXTREME (it means that
the section array isn't fully populated) because the gaps can be huge
(we've got a 64GB gap on parisc).

However, even though I think we can do this going forwards ... I don't
think we can backport it as a bug fix for the slub panic.

James


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Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
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	Pekka Enberg <penberg@kernel.org>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Thu, 21 Apr 2011, James Bottomley wrote:

> > Dave Hansen, Mel: Can you provide us with some help? (Its Easter and so
> > the europeans may be off for awhile)
>
> It sort of depends on your definition of easy.  The problem going from
> DISCONTIGMEM to SPARSEMEM is sorting out the section size (the minimum
> indivisible size for a sectional_mem_map array) and also deciding on
> whether you need SPARSEMEM_EXTREME (discontigmem allows arbitrarily
> different sizes for each contiguous region) or
> ARCH_HAS_HOLES_MEMORYMODEL (allows empty mem_map regions as well).  I
> suspect most architectures will want SPARSEMEM_EXTREME (it means that
> the section array isn't fully populated) because the gaps can be huge
> (we've got a 64GB gap on parisc).

Well my favorite is SPARSEMEM_VMEMMAP because it allows page level holes
and uses the TLB (via page tables) to avoid lookups in the SPARSE maps but
that is likely not going to be in an initial fix.

> However, even though I think we can do this going forwards ... I don't
> think we can backport it as a bug fix for the slub panic.

So far there seems to be no other solution that will fix the issues
cleanly since we have a clash of the notions of a node in !NUMA between
core and discontig. Which is a pretty basic thing to get wrong.

If we can avoid all the fancy stuff and Dave can just get a minimal SPARSE
config going then this may be the best solution for stable as well.

But then these configs have been broken for years and no one noticed. This
means the users of these arches likely have been running a subset of
kernel functionality. I suspect they have never freed memory from
DISCONTIG node 1 and higher without CONFIG_DEBUG_VM on. Otherwise I
cannot explain why the VM_BUG_ONs did not trigger in
mm/page_alloc.c:move_freepages() that should have been brought to the MM
developers attention.

This set of circumstances leads to the suspicion that there were only
tests run that showed that the kernel booted. Higher node memory was never
touched and the MM code was never truly exercised.

So I am not sure that there is any urgency in this matter. No one has
cared for years after all.
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Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
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On Thu, 21 Apr 2011, Christoph Lameter wrote:

> In 32 bit configurations some architectures (like x86) provide nodes
> that have only high memory. Slab allocators only handle normal memory.
> SLAB operates in a kind of degraded mode in that case by falling back for
> each allocation to the nodes that have normal memory.
> 

Let's do this:

 - parisc: James has already queued "parisc: set memory ranges in 
   N_NORMAL_MEMORY when onlined" for 2.6.39, so all he needs now is 
   to merge a hybrid of the Kconfig changes requiring CONFIG_NUMA for 
   CONFIG_DISCONTIGMEM from KOSAKI-san and myself which also fix the 
   compile issues,

 - generic code: we pull check_for_regular_memory() out from under
   CONFIG_HIGHMEM so that N_NORMAL_MEMORY gets set appropriately for 
   all callers of free_area_init_nodes() from paging_init(); this fixes 
   ia64 and mips,

 - alpha, m32r, m68k: push the changes to those individual architectures 
   that I proposed earlier that set N_NORMAL_MEMORY for DISCONTINGMEM
   when memory regions have memory; KOSAKI-san says a couple of these
   architectures may be orphaned so hopefully Andrew can pick them up
   in -mm.

I'll reply to this email with the parisc Kconfig changes for James, the 
generic change to check_for_regular_memory() for Andrew, and the 
arch-specific changes to the appropriate maintainers and email lists (but 
may need to go through -mm if they aren't picked up).
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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Date: Thu, 21 Apr 2011 16:22:35 -0500
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Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	David Rientjes <rientjes@google.com>,
	Pekka Enberg <penberg@kernel.org>,
	Michal Hocko <mhocko@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
	Hugh Dickins <hughd@google.com>, linux-mm@kvack.org,
	LKML <linux-kernel@vger.kernel.org>,
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	x86 maintainers <x86@kernel.org>, Tejun Heo <tj@kernel.org>,
	Dave Hansen <dave@linux.vnet.ibm.com>,
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To: Christoph Lameter <cl@linux.com>
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On Thu, 2011-04-21 at 16:07 -0500, Christoph Lameter wrote:
> On Thu, 21 Apr 2011, James Bottomley wrote:
> 
> > > Dave Hansen, Mel: Can you provide us with some help? (Its Easter and so
> > > the europeans may be off for awhile)
> >
> > It sort of depends on your definition of easy.  The problem going from
> > DISCONTIGMEM to SPARSEMEM is sorting out the section size (the minimum
> > indivisible size for a sectional_mem_map array) and also deciding on
> > whether you need SPARSEMEM_EXTREME (discontigmem allows arbitrarily
> > different sizes for each contiguous region) or
> > ARCH_HAS_HOLES_MEMORYMODEL (allows empty mem_map regions as well).  I
> > suspect most architectures will want SPARSEMEM_EXTREME (it means that
> > the section array isn't fully populated) because the gaps can be huge
> > (we've got a 64GB gap on parisc).
> 
> Well my favorite is SPARSEMEM_VMEMMAP because it allows page level holes
> and uses the TLB (via page tables) to avoid lookups in the SPARSE maps but
> that is likely not going to be in an initial fix.

Really, no ... that requires additional pte insertion logic and some
other stuff that's nasty to craft and requires significant testing.

> > However, even though I think we can do this going forwards ... I don't
> > think we can backport it as a bug fix for the slub panic.
> 
> So far there seems to be no other solution that will fix the issues
> cleanly since we have a clash of the notions of a node in !NUMA between
> core and discontig. Which is a pretty basic thing to get wrong.

Yes there is ... there's the slub patch or the marking as broken.
Either are much simpler.

> If we can avoid all the fancy stuff and Dave can just get a minimal SPARSE
> config going then this may be the best solution for stable as well.
> 
> But then these configs have been broken for years and no one noticed. This
> means the users of these arches likely have been running a subset of
> kernel functionality. I suspect they have never freed memory from
> DISCONTIG node 1 and higher without CONFIG_DEBUG_VM on. Otherwise I
> cannot explain why the VM_BUG_ONs did not trigger in
> mm/page_alloc.c:move_freepages() that should have been brought to the MM
> developers attention.

Yes they have.  As willy said, they've just never been run with DEBUG_VM
or HUGEPAGES or, until recently, SLUB.  The test boxes (at least for
parisc) get hammered quite a lot to flush out coherency issues.  That's
why I'm confident this panic only triggers for slub.  I found the panic
within about two days of turning SLUB on.

> This set of circumstances leads to the suspicion that there were only
> tests run that showed that the kernel booted. Higher node memory was never
> touched and the MM code was never truly exercised.

Look, try to stay on point with logic: they have been extensively
tested, just not in the slub configuration, which is the only one that
crashes.  As I explained (several times) we're just now picking up slub
because debian now enables it by default.

> So I am not sure that there is any urgency in this matter. No one has
> cared for years after all.

If we didn't care, we wouldn't be making all this fuss.  It's only a
couple of days since the bug was reported, which should indicate the
high importance attached to it (well, by everyone except you,
apparently).

James


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From - Thu Nov 08 21:07:08 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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Cc: Christoph Lameter <cl@linux.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Pekka Enberg <penberg@kernel.org>,
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To: David Rientjes <rientjes@google.com>
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On Thu, 2011-04-21 at 14:19 -0700, David Rientjes wrote:
> On Thu, 21 Apr 2011, Christoph Lameter wrote:
> 
> > In 32 bit configurations some architectures (like x86) provide nodes
> > that have only high memory. Slab allocators only handle normal memory.
> > SLAB operates in a kind of degraded mode in that case by falling back for
> > each allocation to the nodes that have normal memory.
> > 
> 
> Let's do this:
> 
>  - parisc: James has already queued "parisc: set memory ranges in 
>    N_NORMAL_MEMORY when onlined" for 2.6.39, so all he needs now is 
>    to merge a hybrid of the Kconfig changes requiring CONFIG_NUMA for 
>    CONFIG_DISCONTIGMEM from KOSAKI-san and myself which also fix the 
>    compile issues,

Not quite: if we go this route, we need to sort out our CPU scheduling
problem as well ... as I said, I don't think we've got all the necessary
numa machinery in place yet.

James


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Subject: [patch] parisc: enable CONFIG_NUMA for DISCONTIGMEM and fix build
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Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org
To: Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
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From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>

CONFIG_DISCONTIGMEM requires CONFIG_NUMA because it represents its memory 
regions as individual nodes that lack remote proximity, hence it already 
has a default CONFIG_NODES_SHIFT of 3.

This configuration causes build errors, however, so fix them as well.

This was first realized when CONFIG_DISCONTIGMEM was used with 
CONFIG_SLUB which depends heavily on CONFIG_NUMA being enabled or 
disabled to support these memory regions.

A long-term fix is to separate the memory region abstraction required for 
DISCONTIGMEM away from NUMA and then build NUMA on top of it with 
proximity domains.

[rientjes@google.com: implicitly enable NUMA for DISCONTIGMEM, changelog]
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: David Rientjes <rientjes@google.com>
---
 arch/parisc/Kconfig            |    3 +++
 include/asm-generic/topology.h |    4 ----
 include/linux/topology.h       |    2 +-
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -244,6 +244,9 @@ config ARCH_DISCONTIGMEM_DEFAULT
 	def_bool y
 	depends on ARCH_DISCONTIGMEM_ENABLE
 
+config NUMA
+	def_bool ARCH_DISCONTIGMEM_ENABLE
+
 config NODES_SHIFT
 	int
 	default "3"
diff --git a/include/asm-generic/topology.h b/include/asm-generic/topology.h
--- a/include/asm-generic/topology.h
+++ b/include/asm-generic/topology.h
@@ -27,8 +27,6 @@
 #ifndef _ASM_GENERIC_TOPOLOGY_H
 #define _ASM_GENERIC_TOPOLOGY_H
 
-#ifndef	CONFIG_NUMA
-
 /* Other architectures wishing to use this simple topology API should fill
    in the below functions as appropriate in their own <asm/topology.h> file. */
 #ifndef cpu_to_node
@@ -60,8 +58,6 @@
 				 cpumask_of_node(pcibus_to_node(bus)))
 #endif
 
-#endif	/* CONFIG_NUMA */
-
 #if !defined(CONFIG_NUMA) || !defined(CONFIG_HAVE_MEMORYLESS_NODES)
 
 #ifndef set_numa_mem
diff --git a/include/linux/topology.h b/include/linux/topology.h
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -209,7 +209,7 @@ int arch_update_cpu_topology(void);
 
 #ifdef CONFIG_NUMA
 #ifndef SD_NODE_INIT
-#error Please define an appropriate SD_NODE_INIT in include/asm/topology.h!!!
+#define SD_NODE_INIT SD_ALLNODES_INIT
 #endif
 
 #endif /* CONFIG_NUMA */

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On Thu, 21 Apr 2011, James Bottomley wrote:

> >  - parisc: James has already queued "parisc: set memory ranges in 
> >    N_NORMAL_MEMORY when onlined" for 2.6.39, so all he needs now is 
> >    to merge a hybrid of the Kconfig changes requiring CONFIG_NUMA for 
> >    CONFIG_DISCONTIGMEM from KOSAKI-san and myself which also fix the 
> >    compile issues,
> 
> Not quite: if we go this route, we need to sort out our CPU scheduling
> problem as well ... as I said, I don't think we've got all the necessary
> numa machinery in place yet.
> 

Ok, it seems like there're two options for this release cycle:

 (1) merge the patch that enables CONFIG_NUMA for DISCONTIGMEM but only 
     do so if CONFIG_SLUB is enabled to avoid the build error, or

 (2) disallow CONFIG_SLUB for parisc with DISCONTIGMEM.
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On Thu, 2011-04-21 at 14:34 -0700, David Rientjes wrote:
> On Thu, 21 Apr 2011, James Bottomley wrote:
> 
> > >  - parisc: James has already queued "parisc: set memory ranges in 
> > >    N_NORMAL_MEMORY when onlined" for 2.6.39, so all he needs now is 
> > >    to merge a hybrid of the Kconfig changes requiring CONFIG_NUMA for 
> > >    CONFIG_DISCONTIGMEM from KOSAKI-san and myself which also fix the 
> > >    compile issues,
> > 
> > Not quite: if we go this route, we need to sort out our CPU scheduling
> > problem as well ... as I said, I don't think we've got all the necessary
> > numa machinery in place yet.
> > 
> 
> Ok, it seems like there're two options for this release cycle:
> 
>  (1) merge the patch that enables CONFIG_NUMA for DISCONTIGMEM but only 
>      do so if CONFIG_SLUB is enabled to avoid the build error, or

That's not an option without coming up with the rest of the numa
fixes ... we can't basically force all SMP systems to become UP.

What build error, by the way?  There's only a runtime panic caused by
slub.

>  (2) disallow CONFIG_SLUB for parisc with DISCONTIGMEM.

Well, that's this patch ... it will actually fix every architecture, not
just parisc.


> diff --git a/init/Kconfig b/init/Kconfig
> index 56240e7..a7ad8fb 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -1226,6 +1226,7 @@ config SLAB
>           per cpu and per node queues.
>  
>  config SLUB
> +       depends on BROKEN || NUMA || !DISCONTIGMEM
>         bool "SLUB (Unqueued Allocator)"
>         help
>            SLUB is a slab allocator that minimizes cache line usage


I already sent it to linux-arch and there's been no dissent; there have
been a few "will that fix my slub bug?" type of responses.

James


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Cc: Christoph Lameter <cl@linux.com>,
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On Thu, 21 Apr 2011, James Bottomley wrote:

> > Ok, it seems like there're two options for this release cycle:
> > 
> >  (1) merge the patch that enables CONFIG_NUMA for DISCONTIGMEM but only 
> >      do so if CONFIG_SLUB is enabled to avoid the build error, or
> 
> That's not an option without coming up with the rest of the numa
> fixes ... we can't basically force all SMP systems to become UP.
> 
> What build error, by the way?  There's only a runtime panic caused by
> slub.
> 

If you enable CONFIG_NUMA for ARCH_DISCONTIGMEM_ENABLE on parisc, it 
results in the same build error that you identified in

	http://marc.info/?l=linux-parisc&m=130326773918005

at least on my hppa64 compiler.

> >  (2) disallow CONFIG_SLUB for parisc with DISCONTIGMEM.
> 
> Well, that's this patch ... it will actually fix every architecture, not
> just parisc.
> 
> 
> > diff --git a/init/Kconfig b/init/Kconfig
> > index 56240e7..a7ad8fb 100644
> > --- a/init/Kconfig
> > +++ b/init/Kconfig
> > @@ -1226,6 +1226,7 @@ config SLAB
> >           per cpu and per node queues.
> >  
> >  config SLUB
> > +       depends on BROKEN || NUMA || !DISCONTIGMEM
> >         bool "SLUB (Unqueued Allocator)"
> >         help
> >            SLUB is a slab allocator that minimizes cache line usage
> 
> 
> I already sent it to linux-arch and there's been no dissent; there have
> been a few "will that fix my slub bug?" type of responses.
> 

I was concerned about tile because it actually got all this right by using 
N_NORMAL_MEMORY appropriately and it uses slub by default, but it always 
enables NUMA at the moment so this won't impact it.

Acked-by: David Rientjes <rientjes@google.com>

I agree we can now defer "parisc: enable CONFIG_NUMA for DISCONTIGMEM and 
fix build errors" until parisc moves away from DISCONTIGMEM, its extracted 
away from CONFIG_NUMA, or the scheduler issues are debugged.
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From: David Rientjes <rientjes@google.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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Cc: Christoph Lameter <cl@linux.com>,
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	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
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On Thu, 21 Apr 2011, James Bottomley wrote:

> diff --git a/mm/slub.c b/mm/slub.c
> index 94d2a33..243bd9c 100644
> --- a/mm/slub.c
> +++ b/mm/slub.c
> @@ -235,7 +235,11 @@ int slab_is_available(void)
>  
>  static inline struct kmem_cache_node *get_node(struct kmem_cache *s, int node)
>  {
> +#ifdef CONFIG_NUMA
>  	return s->node[node];
> +#else
> +	return s->node[0];
> +#endif
>  }
>  
>  /* Verify that a pointer has an address that is valid within a slab page */

Looks like parisc may have been just fine before 7340cc84141d (slub: 
reduce differences between SMP and NUMA), which was merged into 2.6.37?
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.kernel.cross-arch
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To: David Rientjes <rientjes@google.com>
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On Thu, 2011-04-21 at 15:19 -0700, David Rientjes wrote:
> On Thu, 21 Apr 2011, James Bottomley wrote:
> 
> > diff --git a/mm/slub.c b/mm/slub.c
> > index 94d2a33..243bd9c 100644
> > --- a/mm/slub.c
> > +++ b/mm/slub.c
> > @@ -235,7 +235,11 @@ int slab_is_available(void)
> >  
> >  static inline struct kmem_cache_node *get_node(struct kmem_cache *s, int node)
> >  {
> > +#ifdef CONFIG_NUMA
> >  	return s->node[node];
> > +#else
> > +	return s->node[0];
> > +#endif
> >  }
> >  
> >  /* Verify that a pointer has an address that is valid within a slab page */
> 
> Looks like parisc may have been just fine before 7340cc84141d (slub: 
> reduce differences between SMP and NUMA), which was merged into 2.6.37?

That's possible.  I've had no bug reports from the debian 2.6.32 kernel,
which is the only other one that has SLUB by default.  The m68k guys
seem to think this is the cause of their problems too.

But the basic fact is that all our testing has been done on SLAB.  It
wasn't until debian asked us to looks at a 2.6.38 kernel that I
accidentally picked up SLUB by importing their config into my build
environment.

James


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> On Thu, 21 Apr 2011, KOSAKI Motohiro wrote:
> 
> > ia64 and mips have CONFIG_ARCH_POPULATES_NODE_MAP and it initialize
> > N_NORMAL_MEMORY automatically if my understand is correct.
> > (plz see free_area_init_nodes)
> > 
> 
> ia64 doesn't enable CONFIG_HIGHMEM, so it never gets set via this generic 
> code; mips also doesn't enable it for all configs even for 32-bit.
> 
> So we'll either want to take check_for_regular_memory() out from under 
> CONFIG_HIGHMEM and do it for all configs or teach slub to use 
> N_HIGH_MEMORY rather than N_NORMAL_MEMORY.

Hey, I already told this thing.

If CONFIG_HIGHMEM=n, N_HIGH_MEMORY and N_NORMAL_MEMORY are share the
same value. then, 
	node_set_state(nid, N_HIGH_MEMORY) in free_area_init_nodes()

mean set both N_HIGH_MEMORY and N_NORMAL_MEMORY.


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On Fri, Apr 22, 2011 at 1:12 AM, David Rientjes <rientjes@google.com> w=
rote:
>> > diff --git a/init/Kconfig b/init/Kconfig
>> > index 56240e7..a7ad8fb 100644
>> > --- a/init/Kconfig
>> > +++ b/init/Kconfig
>> > @@ -1226,6 +1226,7 @@ config SLAB
>> > =A0 =A0 =A0 =A0 =A0 per cpu and per node queues.
>> >
>> > =A0config SLUB
>> > + =A0 =A0 =A0 depends on BROKEN || NUMA || !DISCONTIGMEM
>> > =A0 =A0 =A0 =A0 bool "SLUB (Unqueued Allocator)"
>> > =A0 =A0 =A0 =A0 help
>> > =A0 =A0 =A0 =A0 =A0 =A0SLUB is a slab allocator that minimizes cac=
he line usage
>>
>>
>> I already sent it to linux-arch and there's been no dissent; there h=
ave
>> been a few "will that fix my slub bug?" type of responses.
>
> I was concerned about tile because it actually got all this right by =
using
> N_NORMAL_MEMORY appropriately and it uses slub by default, but it alw=
ays
> enables NUMA at the moment so this won't impact it.
>
> Acked-by: David Rientjes <rientjes@google.com>

I'm OK with this Kconfig patch. Can someone send a proper patch with
signoffs and such? Do we want to tag this for -stable too?

                         Pekka
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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On Fri, 2011-04-22 at 11:02 +0300, Pekka Enberg wrote:
> On Fri, Apr 22, 2011 at 1:12 AM, David Rientjes <rientjes@google.com> wrote:
> >> > diff --git a/init/Kconfig b/init/Kconfig
> >> > index 56240e7..a7ad8fb 100644
> >> > --- a/init/Kconfig
> >> > +++ b/init/Kconfig
> >> > @@ -1226,6 +1226,7 @@ config SLAB
> >> >           per cpu and per node queues.
> >> >
> >> >  config SLUB
> >> > +       depends on BROKEN || NUMA || !DISCONTIGMEM
> >> >         bool "SLUB (Unqueued Allocator)"
> >> >         help
> >> >            SLUB is a slab allocator that minimizes cache line usage
> >>
> >>
> >> I already sent it to linux-arch and there's been no dissent; there have
> >> been a few "will that fix my slub bug?" type of responses.
> >
> > I was concerned about tile because it actually got all this right by using
> > N_NORMAL_MEMORY appropriately and it uses slub by default, but it always
> > enables NUMA at the moment so this won't impact it.
> >
> > Acked-by: David Rientjes <rientjes@google.com>
> 
> I'm OK with this Kconfig patch. Can someone send a proper patch with
> signoffs and such? Do we want to tag this for -stable too?

I already did here:

http://marc.info/?l=linux-arch&m=130324857801976

I got the wrong linux-mm email address, though (I thought you were on
vger).

I've got a parisc specific patch already for this (also for stable), so
I can just queue this alongside if everyone's OK with that?

James


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From - Thu Nov 08 21:07:08 2018
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From: Pekka Enberg <penberg@kernel.org>
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Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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Hi James,

On Fri, 2011-04-22 at 08:49 -0500, James Bottomley wrote:
> > I'm OK with this Kconfig patch. Can someone send a proper patch with
> > signoffs and such? Do we want to tag this for -stable too?
> 
> I already did here:
> 
> http://marc.info/?l=linux-arch&m=130324857801976
> 
> I got the wrong linux-mm email address, though (I thought you were on
> vger).

Grr, it's a SLUB patch and you didn't CC any of the maintainers! If that
was an attempt to sneak it past me, that's not cool. And if you left it
out by mistake, that's not cool either!

> I've got a parisc specific patch already for this (also for stable), so
> I can just queue this alongside if everyone's OK with that?

Feel free, I'm not subscribed to linux-arch so I don't have the patch in
my inbox at all:

Acked-by: Pekka Enberg <penberg@kernel.org>

			Pekka

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
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Cc: David Rientjes <rientjes@google.com>,
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	Andrew Morton <akpm@linux-foundation.org>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
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On Fri, 2011-04-22 at 20:00 +0300, Pekka Enberg wrote:
> Hi James,
> 
> On Fri, 2011-04-22 at 08:49 -0500, James Bottomley wrote:
> > > I'm OK with this Kconfig patch. Can someone send a proper patch with
> > > signoffs and such? Do we want to tag this for -stable too?
> > 
> > I already did here:
> > 
> > http://marc.info/?l=linux-arch&m=130324857801976
> > 
> > I got the wrong linux-mm email address, though (I thought you were on
> > vger).
> 
> Grr, it's a SLUB patch and you didn't CC any of the maintainers! If that
> was an attempt to sneak it past me, that's not cool. And if you left it
> out by mistake, that's not cool either!

No, christoph was directly on the cc ... although I didn't realise there
were more slub maintainers.

> > I've got a parisc specific patch already for this (also for stable), so
> > I can just queue this alongside if everyone's OK with that?
> 
> Feel free, I'm not subscribed to linux-arch so I don't have the patch in
> my inbox at all:
> 
> Acked-by: Pekka Enberg <penberg@kernel.org>

Will do, thanks.

James


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To: Dave Hansen <dave@linux.vnet.ibm.com>
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On Thu, 2011-04-21 at 11:45 -0700, Dave Hansen wrote:
> On Thu, 2011-04-21 at 13:33 -0500, Christoph Lameter wrote:
> > http://www.linux-mips.org/archives/linux-mips/2008-08/msg00154.html
> > 
> > http://mytechkorner.blogspot.com/2010/12/sparsemem.html
> > 
> > Dave Hansen, Mel: Can you provide us with some help? (Its Easter and so
> > the europeans may be off for awhile) 
> 
> Yup, for sure.  It's also interesting how much code ppc64 removed when
> they did this:
> 
> http://lists.ozlabs.org/pipermail/linuxppc64-dev/2005-November/006646.html

I looked at converting parisc to sparsemem and there's one problem that
none of these cover.  How do you set up bootmem?  If I look at the
examples, they all seem to have enough memory in the first range to
allocate from, so there's no problem.  On parisc, with discontigmem, we
set up all of our ranges as bootmem (we can do this because we
effectively have one node per range).  Obviously, since sparsemem has a
single bitmap for all of the bootmem, we can no longer allocate all of
our memory to it (well, without exploding because some of our gaps are
gigabytes big).  How does everyone cope with this (do you search for
your largest range and use that as bootmem or something)?

James


If 

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Cc: Christoph Lameter <cl@linux.com>,
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On Fri, 2011-04-22 at 13:19 -0500, James Bottomley wrote:
> I looked at converting parisc to sparsemem and there's one problem that
> none of these cover.  How do you set up bootmem?  If I look at the
> examples, they all seem to have enough memory in the first range to
> allocate from, so there's no problem.  On parisc, with discontigmem, we
> set up all of our ranges as bootmem (we can do this because we
> effectively have one node per range).  Obviously, since sparsemem has a
> single bitmap for all of the bootmem, we can no longer allocate all of
> our memory to it (well, without exploding because some of our gaps are
> gigabytes big).  How does everyone cope with this (do you search for
> your largest range and use that as bootmem or something)? 

Sparsemem is purely post-bootmem.  It doesn't deal with sparse
bootmem. :(

That said, I'm not sure you're in trouble.  One bit of bitmap covers 4k
(with 4k pages of course) of memory, one byte covers 32k, and A 32MB
bitmap can cover 1TB of address space.  It explodes, but I think it's
manageable.  It hasn't been a problem enough up to this point to go fix
it.

-- Dave

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On Fri, 2011-04-22 at 13:24 -0700, Dave Hansen wrote:
> On Fri, 2011-04-22 at 13:19 -0500, James Bottomley wrote:
> > I looked at converting parisc to sparsemem and there's one problem that
> > none of these cover.  How do you set up bootmem?  If I look at the
> > examples, they all seem to have enough memory in the first range to
> > allocate from, so there's no problem.  On parisc, with discontigmem, we
> > set up all of our ranges as bootmem (we can do this because we
> > effectively have one node per range).  Obviously, since sparsemem has a
> > single bitmap for all of the bootmem, we can no longer allocate all of
> > our memory to it (well, without exploding because some of our gaps are
> > gigabytes big).  How does everyone cope with this (do you search for
> > your largest range and use that as bootmem or something)? 
> 
> Sparsemem is purely post-bootmem.  It doesn't deal with sparse
> bootmem. :(

Well, this is enabled in discontigmem, sigh.

> That said, I'm not sure you're in trouble.  One bit of bitmap covers 4k
> (with 4k pages of course) of memory, one byte covers 32k, and A 32MB
> bitmap can cover 1TB of address space.  It explodes, but I think it's
> manageable.  It hasn't been a problem enough up to this point to go fix
> it.

I think the platform limited physical address range is 42 bits, so I
suppose that's 128MB ... hopefully we should have that as a contiguous
range from the end of the loaded kernel.  We're lucky they didn't enable
the full ZX1 address range; that would have been 48 bits (or a whole
gigabyte just for the bitmap).

James


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To: Dave Hansen <dave@linux.vnet.ibm.com>
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On Thu, 2011-04-21 at 11:45 -0700, Dave Hansen wrote:
> On Thu, 2011-04-21 at 13:33 -0500, Christoph Lameter wrote:
> > http://www.linux-mips.org/archives/linux-mips/2008-08/msg00154.html
> > 

By the way, this reference is actively wrong for parisc (having just
debugged the problem).  The basic issue is that until we start paging,
we have the kernel and some memory beyond it barely covered with the pg0
page table set up in head.S  On our systems, that extends out to 16MB.
SPARSEMEM is much more bootmem resource greedy than DISCONTIGMEM, so if
we actually call sparse_init() before we have the page tables set up, we
fall off the end of our 16MB mapping and go boom.  For us, therefore, we
can't call sparse_init() until we have our proper page tables in place.

James


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From: Michael Schmitz <schmitzmic@googlemail.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: Re: slub: fix panic with DISCONTIGMEM
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
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	Parisc List <linux-parisc@vger.kernel.org>,
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The problem was indeed never reported upstream but it does in fact
manifest as a null pointer dereference, and happens in a discontiguous
memory context on m68k. I'm uncertain as to whether I had tracked the
exact source of the null pointer, I need to check my notes on this.

Reverting the commit in question makes SLUB behave as though NUMA was
defined, so this all checks out.

Apologies for not escalating this beyond m68k, and thanks to Geert for
spotting the connection.

Cheers,

  Michael


On Wed, Apr 20, 2011 at 7:48 PM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:
> On Tue, Apr 19, 2011 at 23:29, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
>> Slub makes assumptions about page_to_nid() which are violated by
>> DISCONTIGMEM and !NUMA. =A0This violation results in a panic because
>> page_to_nid() can be non-zero for pages in the discontiguous ranges =
and
>> this leads to a null return by get_node(). =A0The assertion by the
>> maintainer is that DISCONTIGMEM should only be allowed when NUMA is =
also
>> defined. =A0However, at least six architectures: alpha, ia64, m32r, =
m68k,
>> mips, parisc violate this. =A0The panic is a regression against slab=
, so
>> just mark slub broken in the problem configuration to prevent users
>> reporting these panics.
>
> How does the problem manifest itself? We're having a problem on m68k,=
 which
> seems to go away when switching from SLUB to SLAB, or when reverting =
a commit
> in [2] (probably this was never reported upstream).
>
> References:
> [1] http://www.mail-archive.com/linux-m68k@vger.kernel.org/msg02812.h=
tml
> [2] http://www.spinics.net/lists/linux-m68k/msg03401.html
>
>> Cc: stable@kernel.org
>> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
>>
>> ---
>>
>> diff --git a/init/Kconfig b/init/Kconfig
>> index 56240e7..a7ad8fb 100644
>> --- a/init/Kconfig
>> +++ b/init/Kconfig
>> @@ -1226,6 +1226,7 @@ config SLAB
>> =A0 =A0 =A0 =A0 =A0per cpu and per node queues.
>>
>> =A0config SLUB
>> + =A0 =A0 =A0 depends on BROKEN || NUMA || !DISCONTIGMEM
>> =A0 =A0 =A0 =A0bool "SLUB (Unqueued Allocator)"
>> =A0 =A0 =A0 =A0help
>> =A0 =A0 =A0 =A0 =A0 SLUB is a slab allocator that minimizes cache li=
ne usage
>
> Gr{oetje,eeting}s,
>
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linu=
x-m68k.org
>
> In personal conversations with technical people, I call myself a hack=
er. But
> when I'm talking to journalists I just say "programmer" or something =
like that.
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=A0 =A0=A0 -- =
Linus Torvalds
>

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: [PATCH] convert parisc to sparsemem (was Re: [PATCH v3] mm: make
 expand_downwards symmetrical to expand_upwards)
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Cc: Christoph Lameter <cl@linux.com>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	David Rientjes <rientjes@google.com>,
	Pekka Enberg <penberg@kernel.org>,
	Michal Hocko <mhocko@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
	Hugh Dickins <hughd@google.com>, linux-mm@kvack.org,
	LKML <linux-kernel@vger.kernel.org>,
	linux-parisc@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
	x86 maintainers <x86@kernel.org>, Tejun Heo <tj@kernel.org>,
	Mel Gorman <mel@csn.ul.ie>
To: Dave Hansen <dave@linux.vnet.ibm.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/3666>

This is the preliminary conversion.  It's very nasty on parisc because
the memory allocation isn't symmetric anymore: under DISCONTIGMEM, we
push all memory into bootmem and then let free_all_bootmem() do the
magic for us; now we have to do separate initialisations for ranges
because SPARSEMEM can't do multi-range boot memory. It's also got the
horrible hack that I only use the first found range for bootmem.  I'm
not sure if this is correct (it won't be if the first found range can be
under about 50MB because we'll run out of bootmem during boot) ... we
might have to sort the ranges and use the larges, but that will involve
us in even more hackery around the bootmem reservations code.

The boot sequence got a few seconds slower because now all of the loops
over our pfn ranges actually have to skip through the holes (which takes
time for 64GB).

All in all, I've not been very impressed with SPARSEMEM over
DISCONTIGMEM.  It seems to have a lot of rough edges (necessitating
exception code) which DISCONTIGMEM just copes with.

And before you say the code is smaller, that's because I converted us to
generic show_mem().

James

---

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 69ff049..b416641 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -233,22 +233,17 @@ config ARCH_SELECT_MEMORY_MODEL
 	def_bool y
 	depends on 64BIT
 
-config ARCH_DISCONTIGMEM_ENABLE
+config ARCH_SPARSEMEM_ENABLE
 	def_bool y
 	depends on 64BIT
 
 config ARCH_FLATMEM_ENABLE
 	def_bool y
 
-config ARCH_DISCONTIGMEM_DEFAULT
+config ARCH_SPARSEMEM_DEFAULT
 	def_bool y
 	depends on ARCH_DISCONTIGMEM_ENABLE
 
-config NODES_SHIFT
-	int
-	default "3"
-	depends on NEED_MULTIPLE_NODES
-
 source "kernel/Kconfig.preempt"
 source "kernel/Kconfig.hz"
 source "mm/Kconfig"
diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index 9608d2c..8344bcb 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -1,73 +1,11 @@
 #ifndef _PARISC_MMZONE_H
 #define _PARISC_MMZONE_H
 
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_SPARSEMEM
 
-#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
-extern int npmem_ranges;
-
-struct node_map_data {
-    pg_data_t pg_data;
-};
-
-extern struct node_map_data node_data[];
-
-#define NODE_DATA(nid)          (&node_data[nid].pg_data)
-
-#define node_start_pfn(nid)	(NODE_DATA(nid)->node_start_pfn)
-#define node_end_pfn(nid)						\
-({									\
-	pg_data_t *__pgdat = NODE_DATA(nid);				\
-	__pgdat->node_start_pfn + __pgdat->node_spanned_pages;		\
-})
-
-/* We have these possible memory map layouts:
- * Astro: 0-3.75, 67.75-68, 4-64
- * zx1: 0-1, 257-260, 4-256
- * Stretch (N-class): 0-2, 4-32, 34-xxx
- */
-
-/* Since each 1GB can only belong to one region (node), we can create
- * an index table for pfn to nid lookup; each entry in pfnnid_map 
- * represents 1GB, and contains the node that the memory belongs to. */
-
-#define PFNNID_SHIFT (30 - PAGE_SHIFT)
-#define PFNNID_MAP_MAX  512     /* support 512GB */
-extern unsigned char pfnnid_map[PFNNID_MAP_MAX];
-
-#ifndef CONFIG_64BIT
-#define pfn_is_io(pfn) ((pfn & (0xf0000000UL >> PAGE_SHIFT)) == (0xf0000000UL >> PAGE_SHIFT))
+#define MAX_PHYSMEM_RANGES 	8 /* current max is 3 but future proof this */
 #else
-/* io can be 0xf0f0f0f0f0xxxxxx or 0xfffffffff0000000 */
-#define pfn_is_io(pfn) ((pfn & (0xf000000000000000UL >> PAGE_SHIFT)) == (0xf000000000000000UL >> PAGE_SHIFT))
-#endif
-
-static inline int pfn_to_nid(unsigned long pfn)
-{
-	unsigned int i;
-	unsigned char r;
-
-	if (unlikely(pfn_is_io(pfn)))
-		return 0;
-
-	i = pfn >> PFNNID_SHIFT;
-	BUG_ON(i >= sizeof(pfnnid_map) / sizeof(pfnnid_map[0]));
-	r = pfnnid_map[i];
-	BUG_ON(r == 0xff);
-
-	return (int)r;
-}
-
-static inline int pfn_valid(int pfn)
-{
-	int nid = pfn_to_nid(pfn);
-
-	if (nid >= 0)
-		return (pfn < node_end_pfn(nid));
-	return 0;
-}
-
-#else /* !CONFIG_DISCONTIGMEM */
 #define MAX_PHYSMEM_RANGES 	1 
 #endif
+
 #endif /* _PARISC_MMZONE_H */
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index a84cc1f..654285a 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -139,9 +139,9 @@ extern int npmem_ranges;
 #define __pa(x)			((unsigned long)(x)-PAGE_OFFSET)
 #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
 
-#ifndef CONFIG_DISCONTIGMEM
+#ifndef CONFIG_SPARSEMEM
 #define pfn_valid(pfn)		((pfn) < max_mapnr)
-#endif /* CONFIG_DISCONTIGMEM */
+#endif
 
 #ifdef CONFIG_HUGETLB_PAGE
 #define HPAGE_SHIFT		22	/* 4MB (is this fixed?) */
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index df65366..526122c 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -147,12 +147,6 @@ extern void $$dyncall(void);
 EXPORT_SYMBOL($$dyncall);
 #endif
 
-#ifdef CONFIG_DISCONTIGMEM
-#include <asm/mmzone.h>
-EXPORT_SYMBOL(node_data);
-EXPORT_SYMBOL(pfnnid_map);
-#endif
-
 #ifdef CONFIG_FUNCTION_TRACER
 extern void _mcount(void);
 EXPORT_SYMBOL(_mcount);
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 5fa1e27..69c547c 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -21,7 +21,6 @@
 #include <linux/initrd.h>
 #include <linux/swap.h>
 #include <linux/unistd.h>
-#include <linux/nodemask.h>	/* for node_online_map */
 #include <linux/pagemap.h>	/* for release_pages and page_cache_release */
 
 #include <asm/pgalloc.h>
@@ -35,11 +34,6 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 
 extern int  data_start;
 
-#ifdef CONFIG_DISCONTIGMEM
-struct node_map_data node_data[MAX_NUMNODES] __read_mostly;
-unsigned char pfnnid_map[PFNNID_MAP_MAX] __read_mostly;
-#endif
-
 static struct resource data_resource = {
 	.name	= "Kernel data",
 	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM,
@@ -110,7 +104,7 @@ static void __init setup_bootmem(void)
 	unsigned long bootmap_pages;
 	unsigned long bootmap_start_pfn;
 	unsigned long bootmap_pfn;
-#ifndef CONFIG_DISCONTIGMEM
+#ifndef CONFIG_SPARSEMEM
 	physmem_range_t pmem_holes[MAX_PHYSMEM_RANGES - 1];
 	int npmem_holes;
 #endif
@@ -144,7 +138,7 @@ static void __init setup_bootmem(void)
 		}
 	}
 
-#ifndef CONFIG_DISCONTIGMEM
+#ifndef CONFIG_SPARSEMEM
 	/*
 	 * Throw out ranges that are too far apart (controlled by
 	 * MAX_GAP).
@@ -156,7 +150,7 @@ static void __init setup_bootmem(void)
 			 pmem_ranges[i-1].pages) > MAX_GAP) {
 			npmem_ranges = i;
 			printk("Large gap in memory detected (%ld pages). "
-			       "Consider turning on CONFIG_DISCONTIGMEM\n",
+			       "Consider turning on CONFIG_SPARSEMEM\n",
 			       pmem_ranges[i].start_pfn -
 			       (pmem_ranges[i-1].start_pfn +
 			        pmem_ranges[i-1].pages));
@@ -228,7 +222,7 @@ static void __init setup_bootmem(void)
 
 	printk(KERN_INFO "Total Memory: %ld MB\n",mem_max >> 20);
 
-#ifndef CONFIG_DISCONTIGMEM
+#ifndef CONFIG_SPARSEMEM
 	/* Merge the ranges, keeping track of the holes */
 
 	{
@@ -253,48 +247,29 @@ static void __init setup_bootmem(void)
 	}
 #endif
 
-	bootmap_pages = 0;
-	for (i = 0; i < npmem_ranges; i++)
-		bootmap_pages += bootmem_bootmap_pages(pmem_ranges[i].pages);
+	bootmap_pages = bootmem_bootmap_pages(pmem_ranges[0].pages);
 
 	bootmap_start_pfn = PAGE_ALIGN(__pa((unsigned long) &_end)) >> PAGE_SHIFT;
 
-#ifdef CONFIG_DISCONTIGMEM
-	for (i = 0; i < MAX_PHYSMEM_RANGES; i++) {
-		memset(NODE_DATA(i), 0, sizeof(pg_data_t));
-		NODE_DATA(i)->bdata = &bootmem_node_data[i];
-	}
-	memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
-
-	for (i = 0; i < npmem_ranges; i++) {
-		node_set_state(i, N_NORMAL_MEMORY);
-		node_set_online(i);
-	}
-#endif
-
 	/*
-	 * Initialize and free the full range of memory in each range.
-	 * Note that the only writing these routines do are to the bootmap,
-	 * and we've made sure to locate the bootmap properly so that they
-	 * won't be writing over anything important.
+	 * Only initialise the first memory range to bootmem (the bootmem
+	 * allocation map can't cope with large holes)
 	 */
 
 	bootmap_pfn = bootmap_start_pfn;
 	max_pfn = 0;
-	for (i = 0; i < npmem_ranges; i++) {
+	{
 		unsigned long start_pfn;
 		unsigned long npages;
 
-		start_pfn = pmem_ranges[i].start_pfn;
-		npages = pmem_ranges[i].pages;
+		start_pfn = pmem_ranges[0].start_pfn;
+		npages = pmem_ranges[0].pages;
 
-		bootmap_size = init_bootmem_node(NODE_DATA(i),
+		bootmap_size = init_bootmem_node(NODE_DATA(0),
 						bootmap_pfn,
 						start_pfn,
 						(start_pfn + npages) );
-		free_bootmem_node(NODE_DATA(i),
-				  (start_pfn << PAGE_SHIFT),
-				  (npages << PAGE_SHIFT) );
+		free_bootmem(start_pfn << PAGE_SHIFT, npages << PAGE_SHIFT);
 		bootmap_pfn += (bootmap_size + PAGE_SIZE - 1) >> PAGE_SHIFT;
 		if ((start_pfn + npages) > max_pfn)
 			max_pfn = start_pfn + npages;
@@ -323,7 +298,7 @@ static void __init setup_bootmem(void)
 			((bootmap_pfn - bootmap_start_pfn) << PAGE_SHIFT),
 			BOOTMEM_DEFAULT);
 
-#ifndef CONFIG_DISCONTIGMEM
+#ifndef CONFIG_SPARSEMEM
 
 	/* reserve the holes */
 
@@ -369,6 +344,13 @@ static void __init setup_bootmem(void)
 		request_resource(res, &data_resource);
 	}
 	request_resource(&sysram_resources[0], &pdcdata_resource);
+
+#ifdef CONFIG_SPARSEMEM
+	for (i = 0; i < npmem_ranges; i++) {
+		memory_present(0, pmem_ranges[i].start_pfn,
+			       pmem_ranges[i].start_pfn + pmem_ranges[i].pages);
+	}
+#endif
 }
 
 static void __init map_pages(unsigned long start_vaddr,
@@ -580,7 +562,7 @@ unsigned long pcxl_dma_start __read_mostly;
 
 void __init mem_init(void)
 {
-	int codesize, reservedpages, datasize, initsize;
+	int codesize, reservedpages, datasize, initsize, i;
 
 	/* Do sanity checks on page table constants */
 	BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
@@ -589,19 +571,27 @@ void __init mem_init(void)
 	BUILD_BUG_ON(PAGE_SHIFT + BITS_PER_PTE + BITS_PER_PMD + BITS_PER_PGD
 			> BITS_PER_LONG);
 
-	high_memory = __va((max_pfn << PAGE_SHIFT));
-
-#ifndef CONFIG_DISCONTIGMEM
-	max_mapnr = page_to_pfn(virt_to_page(high_memory - 1)) + 1;
 	totalram_pages += free_all_bootmem();
-#else
-	{
-		int i;
-
-		for (i = 0; i < npmem_ranges; i++)
-			totalram_pages += free_all_bootmem_node(NODE_DATA(i));
+	/* free all the ranges not in bootmem */
+	for (i = 1; i < npmem_ranges; i++) {
+		unsigned long pfn = pmem_ranges[i].start_pfn;
+		unsigned long end = pfn + pmem_ranges[i].pages;
+
+		if (end > max_pfn)
+			max_pfn = end;
+
+		for (; pfn < end; pfn++) {
+			struct page *page = pfn_to_page(pfn);
+			ClearPageReserved(page);
+			init_page_count(page);
+			__free_page(page);
+			totalram_pages++;
+		}
 	}
-#endif
+
+	max_low_pfn = max_pfn;
+	high_memory = __va((max_pfn << PAGE_SHIFT));
+	max_mapnr = page_to_pfn(virt_to_page(high_memory - 1)) + 1;
 
 	codesize = (unsigned long)_etext - (unsigned long)_text;
 	datasize = (unsigned long)_edata - (unsigned long)_etext;
@@ -610,24 +600,15 @@ void __init mem_init(void)
 	reservedpages = 0;
 {
 	unsigned long pfn;
-#ifdef CONFIG_DISCONTIGMEM
-	int i;
-
-	for (i = 0; i < npmem_ranges; i++) {
-		for (pfn = node_start_pfn(i); pfn < node_end_pfn(i); pfn++) {
-			if (PageReserved(pfn_to_page(pfn)))
-				reservedpages++;
-		}
-	}
-#else /* !CONFIG_DISCONTIGMEM */
 	for (pfn = 0; pfn < max_pfn; pfn++) {
 		/*
 		 * Only count reserved RAM pages
 		 */
+		if (!pfn_valid(pfn))
+			continue;
 		if (PageReserved(pfn_to_page(pfn)))
 			reservedpages++;
 	}
-#endif
 }
 
 #ifdef CONFIG_PA11
@@ -680,78 +661,6 @@ void __init mem_init(void)
 unsigned long *empty_zero_page __read_mostly;
 EXPORT_SYMBOL(empty_zero_page);
 
-void show_mem(unsigned int filter)
-{
-	int i,free = 0,total = 0,reserved = 0;
-	int shared = 0, cached = 0;
-
-	printk(KERN_INFO "Mem-info:\n");
-	show_free_areas();
-#ifndef CONFIG_DISCONTIGMEM
-	i = max_mapnr;
-	while (i-- > 0) {
-		total++;
-		if (PageReserved(mem_map+i))
-			reserved++;
-		else if (PageSwapCache(mem_map+i))
-			cached++;
-		else if (!page_count(&mem_map[i]))
-			free++;
-		else
-			shared += page_count(&mem_map[i]) - 1;
-	}
-#else
-	for (i = 0; i < npmem_ranges; i++) {
-		int j;
-
-		for (j = node_start_pfn(i); j < node_end_pfn(i); j++) {
-			struct page *p;
-			unsigned long flags;
-
-			pgdat_resize_lock(NODE_DATA(i), &flags);
-			p = nid_page_nr(i, j) - node_start_pfn(i);
-
-			total++;
-			if (PageReserved(p))
-				reserved++;
-			else if (PageSwapCache(p))
-				cached++;
-			else if (!page_count(p))
-				free++;
-			else
-				shared += page_count(p) - 1;
-			pgdat_resize_unlock(NODE_DATA(i), &flags);
-        	}
-	}
-#endif
-	printk(KERN_INFO "%d pages of RAM\n", total);
-	printk(KERN_INFO "%d reserved pages\n", reserved);
-	printk(KERN_INFO "%d pages shared\n", shared);
-	printk(KERN_INFO "%d pages swap cached\n", cached);
-
-
-#ifdef CONFIG_DISCONTIGMEM
-	{
-		struct zonelist *zl;
-		int i, j;
-
-		for (i = 0; i < npmem_ranges; i++) {
-			zl = node_zonelist(i, 0);
-			for (j = 0; j < MAX_NR_ZONES; j++) {
-				struct zoneref *z;
-				struct zone *zone;
-
-				printk("Zone list for zone %d on node %d: ", j, i);
-				for_each_zone_zonelist(zone, z, zl, j)
-					printk("[%d/%s] ", zone_to_nid(zone),
-								zone->name);
-				printk("\n");
-			}
-		}
-	}
-#endif
-}
-
 /*
  * pagetable_init() sets up the page tables
  *
@@ -886,6 +795,9 @@ EXPORT_SYMBOL(map_hpux_gateway_page);
 void __init paging_init(void)
 {
 	int i;
+	unsigned long zones_size[MAX_NR_ZONES] = { 0, };
+	unsigned long holes_size[MAX_NR_ZONES] = { 0, };
+	unsigned long mem_start_pfn = ~0UL, mem_end_pfn = 0, mem_size_pfn = 0;
 
 	setup_bootmem();
 	pagetable_init();
@@ -893,27 +805,31 @@ void __init paging_init(void)
 	flush_cache_all_local(); /* start with known state */
 	flush_tlb_all_local(NULL);
 
-	for (i = 0; i < npmem_ranges; i++) {
-		unsigned long zones_size[MAX_NR_ZONES] = { 0, };
-
-		zones_size[ZONE_NORMAL] = pmem_ranges[i].pages;
-
-#ifdef CONFIG_DISCONTIGMEM
-		/* Need to initialize the pfnnid_map before we can initialize
-		   the zone */
-		{
-		    int j;
-		    for (j = (pmem_ranges[i].start_pfn >> PFNNID_SHIFT);
-			 j <= ((pmem_ranges[i].start_pfn + pmem_ranges[i].pages) >> PFNNID_SHIFT);
-			 j++) {
-			pfnnid_map[j] = i;
-		    }
-		}
-#endif
+	/*
+	 *  from here, the kernel and all of the physical memory is
+	 *  fully covered with page table entries.  This is required
+	 *  because sparse_init() is very memory greedy and will fall
+	 *  off the end of the kernel initial page mapping.
+	 */
+
+	sparse_init();
 
-		free_area_init_node(i, zones_size,
-				pmem_ranges[i].start_pfn, NULL);
+	for (i = 0; i < npmem_ranges; i++) {
+		unsigned long start = pmem_ranges[i].start_pfn;
+		unsigned long size = pmem_ranges[i].pages;
+		unsigned long end = start + size;
+
+		if (mem_start_pfn > start)
+			mem_start_pfn = start;
+		if (mem_end_pfn < end)
+			mem_end_pfn = end;
+		mem_size_pfn += size;
 	}
+
+	zones_size[ZONE_NORMAL] = mem_end_pfn - mem_start_pfn;
+	holes_size[ZONE_NORMAL] = zones_size[ZONE_NORMAL] - mem_size_pfn;
+
+	free_area_init_node(0, zones_size, mem_start_pfn, holes_size);
 }
 
 #ifdef CONFIG_PA20


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From - Thu Nov 08 21:07:09 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH] convert parisc to sparsemem (was Re: [PATCH v3] mm:
	make expand_downwards symmetrical to expand_upwards)
Date: Sun, 24 Apr 2011 12:27:14 -0400
Organization: nrc.ca
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Message-ID: <20110424162713.GA1954@hiauly1.hia.nrc.ca>
References: <1303337718.2587.51.camel@mulgrave.site> <alpine.DEB.2.00.1104201530430.13948@chino.kir.corp.google.com> <20110421221712.9184.A69D9226@jp.fujitsu.com> <1303403847.4025.11.camel@mulgrave.site> <alpine.DEB.2.00.1104211328000.5741@router.home> <1303411537.9048.3583.camel@nimitz> <1303507985.2590.47.camel@mulgrave.site> <1303583657.4116.11.camel@mulgrave.site>
Reply-To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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Cc: Dave Hansen <dave@linux.vnet.ibm.com>, Christoph Lameter <cl@linux.com>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	David Rientjes <rientjes@google.com>,
	Pekka Enberg <penberg@kernel.org>, Michal Hocko <mhocko@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
	Hugh Dickins <hughd@google.com>, linux-mm@kvack.org,
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	Ingo Molnar <mingo@elte.hu>, x86 maintainers <x86@kernel.org>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Sat, 23 Apr 2011, James Bottomley wrote:

> The boot sequence got a few seconds slower because now all of the loops
> over our pfn ranges actually have to skip through the holes (which takes
> time for 64GB).

On my rp3440, the biggest gap seems to be 265GB:

dave@mx3210:~$ cat /proc/iomem
00000000-3fffffff : System RAM
00000000-000009ff : PDC data (Page Zero)
00100000-004acfff : Kernel code
004ad000-00661fff : Kernel data
40000000-4fffffff : IOVA Space
100000000-27fdfffff : System RAM
4040000000-40ffffffff : System RAM

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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From - Thu Nov 08 21:07:10 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ide
Subject: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on boot on
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currently libata-sff is completely ignoring the enabled/disabled status
of the interfaces.  This is a real problem on parisc because if you
touch a non responding memory area (i.e. a disabled interface) you crash
the box.

Fix by checking the CNTRL bits to see if the port is enabled before
trying to poke it.

James

---

James Bottomley (2):
  pata_cm64x: fix boot crash on parisc
  libata-sff: prevent irq descriptions for dummy ports

 drivers/ata/libata-sff.c  |    9 +++++++--
 drivers/ata/pata_cmd64x.c |   42 ++++++++++++++++++++++++++++++++++++++----
 include/linux/pci_ids.h   |    2 ++
 3 files changed, 47 insertions(+), 6 deletions(-)

-- 
1.7.4.1



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From - Thu Nov 08 21:07:10 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ide
Subject: [PATCH 1/2] pata_cm64x: fix boot crash on parisc
Date: Sun, 24 Apr 2011 14:30:14 -0500
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Cc: Parisc List <linux-parisc@vger.kernel.org>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
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Xref: news.gmane.org gmane.linux.ports.parisc:3669 gmane.linux.ide:49391
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/3669>

The old IDE cmd64x checks the status of the CNTRL register to see if
the ports are enabled before probing them.  pata_cmd64x doesn't do
this, which causes a HPMC on parisc when it tries to poke at the
secondary port because apparently the BAR isn't wired up (and a
non-responding piece of memory causes a HPMC).

Fix this by porting the CNTRL register port detection logic from IDE
cmd64x.  In addition, following converns from Alan Cox, add a check to
see if a mobility electronics bridge is the immediate parent and forgo
the check if it is (prevents problems on hotplug controllers).

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 drivers/ata/pata_cmd64x.c |   42 ++++++++++++++++++++++++++++++++++++++----
 include/linux/pci_ids.h   |    2 ++
 2 files changed, 40 insertions(+), 4 deletions(-)

diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
index 905ff76..7bafc16 100644
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -41,6 +41,9 @@
 enum {
 	CFR 		= 0x50,
 		CFR_INTR_CH0  = 0x04,
+	CNTRL		= 0x51,
+		CNTRL_CH0     = 0x04,
+		CNTRL_CH1     = 0x08,
 	CMDTIM 		= 0x52,
 	ARTTIM0 	= 0x53,
 	DRWTIM0 	= 0x54,
@@ -328,9 +331,19 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 			.port_ops = &cmd648_port_ops
 		}
 	};
-	const struct ata_port_info *ppi[] = { &cmd_info[id->driver_data], NULL };
-	u8 mrdmode;
+	const struct ata_port_info *ppi[] = { 
+		&cmd_info[id->driver_data],
+		&cmd_info[id->driver_data],
+		NULL
+	};
+	u8 mrdmode, reg;
 	int rc;
+	struct pci_dev *bridge = pdev->bus->self;
+	/* mobility split bridges don't report enabled ports correctly */
+	int port_ok = !(bridge && bridge->vendor ==
+			PCI_VENDOR_ID_MOBILITY_ELECTRONICS);
+	/* all (with exceptions below) apart from 643 have CNTRL_CH0 bit */
+	int cntrl_ch0_ok = (id->driver_data != 0);
 
 	rc = pcim_enable_device(pdev);
 	if (rc)
@@ -341,11 +354,18 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	if (pdev->device == PCI_DEVICE_ID_CMD_646) {
 		/* Does UDMA work ? */
-		if (pdev->revision > 4)
+		if (pdev->revision > 4) {
 			ppi[0] = &cmd_info[2];
+			ppi[1] = &cmd_info[2];
+		}
 		/* Early rev with other problems ? */
-		else if (pdev->revision == 1)
+		else if (pdev->revision == 1) {
 			ppi[0] = &cmd_info[3];
+			ppi[1] = &cmd_info[3];
+		}
+		/* revs 1,2 have no CNTRL_CH0 */
+		if (pdev->revision < 3)
+			cntrl_ch0_ok = 0;
 	}
 
 	pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64);
@@ -354,6 +374,20 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	mrdmode |= 0x02;	/* Memory read line enable */
 	pci_write_config_byte(pdev, MRDMODE, mrdmode);
 
+	/* check for enabled ports */
+	pci_read_config_byte(pdev, CNTRL, &reg);
+	if (!port_ok)
+		dev_printk(KERN_NOTICE, &pdev->dev, "Mobility Bridge detected, ignoring CNTRL port enable/disable\n");
+	if (port_ok && cntrl_ch0_ok && !(reg & CNTRL_CH0)) {
+		dev_printk(KERN_NOTICE, &pdev->dev, "Primary port is disabled\n");
+		ppi[0] = &ata_dummy_port_info;
+		
+	}
+	if (port_ok && !(reg & CNTRL_CH1)) {
+		dev_printk(KERN_NOTICE, &pdev->dev, "Secondary port is disabled\n");
+		ppi[1] = &ata_dummy_port_info;
+	}
+
 	/* Force PIO 0 here.. */
 
 	/* PPC specific fixup copied from old driver */
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 4e2c915..7a0ac45 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -608,6 +608,8 @@
 #define PCI_DEVICE_ID_MATROX_G550	0x2527
 #define PCI_DEVICE_ID_MATROX_VIA	0x4536
 
+#define PCI_VENDOR_ID_MOBILITY_ELECTRONICS	0x14f2
+
 #define PCI_VENDOR_ID_CT		0x102c
 #define PCI_DEVICE_ID_CT_69000		0x00c0
 #define PCI_DEVICE_ID_CT_65545		0x00d8
-- 
1.7.4.1



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From - Thu Nov 08 21:07:10 2018
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From: James Bottomley <James.Bottomley@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ide
Subject: [PATCH 0/2] libata-sff: prevent irq descriptions for dummy ports
Date: Sun, 24 Apr 2011 14:31:33 -0500
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Cc: Parisc List <linux-parisc@vger.kernel.org>,
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This is a cosmetic change to prevent libata-sff adding irq
descriptions to dummy ports, since the information, while largely
unused, is erroneous.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
 drivers/ata/libata-sff.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index f8380ce..b1b926c 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -2447,13 +2447,18 @@ int ata_pci_sff_activate_host(struct ata_host *host,
 		return -ENOMEM;
 
 	if (!legacy_mode && pdev->irq) {
+		int i;
+
 		rc = devm_request_irq(dev, pdev->irq, irq_handler,
 				      IRQF_SHARED, drv_name, host);
 		if (rc)
 			goto out;
 
-		ata_port_desc(host->ports[0], "irq %d", pdev->irq);
-		ata_port_desc(host->ports[1], "irq %d", pdev->irq);
+		for (i = 0; i < 2; i++) {
+			if (ata_port_is_dummy(host->ports[i]))
+				continue;
+			ata_port_desc(host->ports[i], "irq %d", pdev->irq);
+		}
 	} else if (legacy_mode) {
 		if (!ata_port_is_dummy(host->ports[0])) {
 			rc = devm_request_irq(dev, ATA_PRIMARY_IRQ(pdev),
-- 
1.7.4.1



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From - Thu Nov 08 21:07:10 2018
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From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH] convert parisc to sparsemem (was Re: [PATCH v3] mm: make expand_downwards symmetrical to expand_upwards)
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Cc: kosaki.motohiro@jp.fujitsu.com,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi James,

 % make CROSS_COMPILE=hppa64-linux- ARCH=parisc
  CHK     include/linux/version.h
  CHK     include/generated/utsrelease.h
  CC      arch/parisc/kernel/asm-offsets.s
In file included from include/linux/topology.h:32:0,
                 from include/linux/sched.h:78,
                 from arch/parisc/kernel/asm-offsets.c:31:
include/linux/mmzone.h:916:27: fatal error: asm/sparsemem.h: No such file or directory

Parhaps, you forgot to quilt add?


> This is the preliminary conversion.  It's very nasty on parisc because
> the memory allocation isn't symmetric anymore: under DISCONTIGMEM, we
> push all memory into bootmem and then let free_all_bootmem() do the
> magic for us; now we have to do separate initialisations for ranges
> because SPARSEMEM can't do multi-range boot memory. It's also got the
> horrible hack that I only use the first found range for bootmem.  I'm
> not sure if this is correct (it won't be if the first found range can be
> under about 50MB because we'll run out of bootmem during boot) ... we
> might have to sort the ranges and use the larges, but that will involve
> us in even more hackery around the bootmem reservations code.
> 
> The boot sequence got a few seconds slower because now all of the loops
> over our pfn ranges actually have to skip through the holes (which takes
> time for 64GB).
> 
> All in all, I've not been very impressed with SPARSEMEM over
> DISCONTIGMEM.  It seems to have a lot of rough edges (necessitating
> exception code) which DISCONTIGMEM just copes with.
> 
> And before you say the code is smaller, that's because I converted us to
> generic show_mem().

Cool! I hoped to remove arch specific show_mem() long time.


And, nitpick comment.

Could you please use #ifdef CONFIG_FLAGMEM instead #ifndef CONFIG_SPARSEMEM?
MM gyes parse '#ifndef CONFIG_SPARSEMEM' as valid-both-flatmem-and-discontigmem.
but this code isn't.

If my quick grep is correct, all of your #ifndef SPARSEMEM can be converted
#ifdef FALTMEM.




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From - Thu Nov 08 21:07:10 2018
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From: Dave Hansen <dave@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH] convert parisc to sparsemem (was Re: [PATCH v3] mm:
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Cc: Christoph Lameter <cl@linux.com>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	David Rientjes <rientjes@google.com>,
	Pekka Enberg <penberg@kernel.org>,
	Michal Hocko <mhocko@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
	Hugh Dickins <hughd@google.com>, linux-mm@kvack.org,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Sat, 2011-04-23 at 13:34 -0500, James Bottomley wrote: 
> This is the preliminary conversion.  It's very nasty on parisc because
> the memory allocation isn't symmetric anymore: under DISCONTIGMEM, we
> push all memory into bootmem and then let free_all_bootmem() do the
> magic for us;

Urg, that's unfortunate.  I bet we could fairly easily teach the bootmem
allocator to allow a couple of bootmem_data's to hang off of an
individual pgdat.  Put each pmem_ranges in one of those instead of a
pgdat.  That would at least help with the bitmap size explosion and
extra loops.

> now we have to do separate initialisations for ranges
> because SPARSEMEM can't do multi-range boot memory. It's also got the
> horrible hack that I only use the first found range for bootmem.  I'm
> not sure if this is correct (it won't be if the first found range can be
> under about 50MB because we'll run out of bootmem during boot) ... we
> might have to sort the ranges and use the larges, but that will involve
> us in even more hackery around the bootmem reservations code.
> 
> The boot sequence got a few seconds slower because now all of the loops
> over our pfn ranges actually have to skip through the holes (which takes
> time for 64GB).

Which iterations were these, btw?  All of the ones I saw the patch touch
seemed to be running over just a single pmem_range.

> All in all, I've not been very impressed with SPARSEMEM over
> DISCONTIGMEM.  It seems to have a lot of rough edges (necessitating
> exception code) which DISCONTIGMEM just copes with.

We definitely need to look at extending it to cover bootmem-time a bit.
Is that even worth it these days with the no-bootmem bits around?

-- Dave


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These two fixes contain the agreed fix for our slub panic (agreed with
the mm folks that we'll define SLUB broken in the !NUMA && DISCONTIGMEM
case, which should fix m86k as well) and another buglet that turned up
examining the parisc discontigmem code.

The patches are here:

master.kernel.org:/pub/scm/linux/kernel/git/jejb/parisc-2.6.git#fixes

The short changelog is:

David Rientjes (1):
      [PARISC] set memory ranges in N_NORMAL_MEMORY when onlined

James Bottomley (1):
      [PARISC] slub: fix panic with DISCONTIGMEM

The diffstat is:

 arch/parisc/mm/init.c |    4 +++-
 init/Kconfig          |    1 +
 2 files changed, 4 insertions(+), 1 deletions(-)

And the full diff are below.

James

---

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index b7ed8d7..b1d1262 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -266,8 +266,10 @@ static void __init setup_bootmem(void)
 	}
 	memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
 
-	for (i = 0; i < npmem_ranges; i++)
+	for (i = 0; i < npmem_ranges; i++) {
+		node_set_state(i, N_NORMAL_MEMORY);
 		node_set_online(i);
+	}
 #endif
 
 	/*
diff --git a/init/Kconfig b/init/Kconfig
index 56240e7..a7ad8fb 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1226,6 +1226,7 @@ config SLAB
 	  per cpu and per node queues.
 
 config SLUB
+	depends on BROKEN || NUMA || !DISCONTIGMEM
 	bool "SLUB (Unqueued Allocator)"
 	help
 	   SLUB is a slab allocator that minimizes cache line usage


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Subject: Re: [GIT PULL] parisc fixes for 2.6.39-rc5
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On Wed, Apr 27, 2011 at 22:18, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> These two fixes contain the agreed fix for our slub panic (agreed wit=
h
> the mm folks that we'll define SLUB broken in the !NUMA && DISCONTIGM=
EM
> case, which should fix m86k as well) and another buglet that turned u=
p
> examining the parisc discontigmem code.

Do we still need to mark SLUB broken?
On m68k, the issue seems to have been fixed by setting the N_NORMAL_MEM=
ORY flag
(pull request scheduled after one more linux-next build cycle).

Or do you plan to unmark it broken once every affected arch sets the
N_NORMAL_MEMORY flag?

> The patches are here:
>
> master.kernel.org:/pub/scm/linux/kernel/git/jejb/parisc-2.6.git#fixes
>
> The short changelog is:
>
> David Rientjes (1):
> =C2=A0 =C2=A0 =C2=A0[PARISC] set memory ranges in N_NORMAL_MEMORY whe=
n onlined
>
> James Bottomley (1):
> =C2=A0 =C2=A0 =C2=A0[PARISC] slub: fix panic with DISCONTIGMEM
>
> The diffstat is:
>
> =C2=A0arch/parisc/mm/init.c | =C2=A0 =C2=A04 +++-
> =C2=A0init/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0| =C2=A0 =C2=A01=
 +
> =C2=A02 files changed, 4 insertions(+), 1 deletions(-)
>
> And the full diff are below.
>
> James
>
> ---
>
> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> index b7ed8d7..b1d1262 100644
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -266,8 +266,10 @@ static void __init setup_bootmem(void)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0}
> =C2=A0 =C2=A0 =C2=A0 =C2=A0memset(pfnnid_map, 0xff, sizeof(pfnnid_map=
));
>
> - =C2=A0 =C2=A0 =C2=A0 for (i =3D 0; i < npmem_ranges; i++)
> + =C2=A0 =C2=A0 =C2=A0 for (i =3D 0; i < npmem_ranges; i++) {
> + =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 node_set_state(i, =
N_NORMAL_MEMORY);
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0node_set_onlin=
e(i);
> + =C2=A0 =C2=A0 =C2=A0 }
> =C2=A0#endif
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0/*
> diff --git a/init/Kconfig b/init/Kconfig
> index 56240e7..a7ad8fb 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -1226,6 +1226,7 @@ config SLAB
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0per cpu and per node queues.
>
> =C2=A0config SLUB
> + =C2=A0 =C2=A0 =C2=A0 depends on BROKEN || NUMA || !DISCONTIGMEM
> =C2=A0 =C2=A0 =C2=A0 =C2=A0bool "SLUB (Unqueued Allocator)"
> =C2=A0 =C2=A0 =C2=A0 =C2=A0help
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 SLUB is a slab allocator that mini=
mizes cache line usage

Gr{oetje,eeting}s,

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 =C2=A0=C2=A0 -- Linus Torvalds

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.m68k
Subject: Re: [GIT PULL] parisc fixes for 2.6.39-rc5
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On Wed, 2011-04-27 at 22:36 +0200, Geert Uytterhoeven wrote:
> On Wed, Apr 27, 2011 at 22:18, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> > These two fixes contain the agreed fix for our slub panic (agreed with
> > the mm folks that we'll define SLUB broken in the !NUMA && DISCONTIGMEM
> > case, which should fix m86k as well) and another buglet that turned up
> > examining the parisc discontigmem code.
> 
> Do we still need to mark SLUB broken?
> On m68k, the issue seems to have been fixed by setting the N_NORMAL_MEMORY flag
> (pull request scheduled after one more linux-next build cycle).
> 
> Or do you plan to unmark it broken once every affected arch sets the
> N_NORMAL_MEMORY flag?

Yes ... simply doing N_NORMAL_MEMORY doesn't fix parisc to not oops.

James


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From: Sven Eckelmann <sven@narfation.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH] atomic: add *_dec_not_zero
Date: Tue,  3 May 2011 23:30:35 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1134908>

Introduce an *_dec_not_zero operation.  Make this a special case of
*_add_unless because batman-adv uses atomic_dec_not_zero in different
places like re-broadcast queue or aggregation queue management. There
are other non-final patches which may also want to use this macro.

Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: x86@kernel.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: uclinux-dist-devel@blackfin.uclinux.org
Cc: linux-cris-kernel@axis.com
Cc: linux-ia64@vger.kernel.org
Cc: linux-m32r@ml.linux-m32r.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-mips@linux-mips.org
Cc: linux-am33-list@redhat.com
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-arch@vger.kernel.org
---
David S. Miller recommended this change in
 https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/2011-May/004560.html

 arch/alpha/include/asm/atomic.h    |    2 ++
 arch/alpha/include/asm/local.h     |    1 +
 arch/arm/include/asm/atomic.h      |    2 ++
 arch/avr32/include/asm/atomic.h    |    1 +
 arch/blackfin/include/asm/atomic.h |    1 +
 arch/cris/include/asm/atomic.h     |    1 +
 arch/frv/include/asm/atomic.h      |    1 +
 arch/h8300/include/asm/atomic.h    |    1 +
 arch/ia64/include/asm/atomic.h     |    2 ++
 arch/m32r/include/asm/atomic.h     |    1 +
 arch/m32r/include/asm/local.h      |    1 +
 arch/m68k/include/asm/atomic.h     |    1 +
 arch/mips/include/asm/atomic.h     |    2 ++
 arch/mips/include/asm/local.h      |    1 +
 arch/mn10300/include/asm/atomic.h  |    1 +
 arch/parisc/include/asm/atomic.h   |    2 ++
 arch/powerpc/include/asm/atomic.h  |    2 ++
 arch/powerpc/include/asm/local.h   |    1 +
 arch/s390/include/asm/atomic.h     |    2 ++
 arch/sh/include/asm/atomic.h       |    1 +
 arch/sparc/include/asm/atomic_32.h |    1 +
 arch/sparc/include/asm/atomic_64.h |    2 ++
 arch/tile/include/asm/atomic.h     |    9 +++++++++
 arch/tile/include/asm/atomic_32.h  |    1 +
 arch/x86/include/asm/atomic.h      |    1 +
 arch/x86/include/asm/atomic64_64.h |    1 +
 arch/xtensa/include/asm/atomic.h   |    1 +
 include/asm-generic/atomic-long.h  |    2 ++
 include/asm-generic/atomic.h       |    1 +
 include/asm-generic/atomic64.h     |    1 +
 include/asm-generic/local.h        |    1 +
 include/asm-generic/local64.h      |    2 ++
 32 files changed, 50 insertions(+), 0 deletions(-)

diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
index e756d04..7e9434e 100644
--- a/arch/alpha/include/asm/atomic.h
+++ b/arch/alpha/include/asm/atomic.h
@@ -200,6 +200,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 /**
  * atomic64_add_unless - add unless the number is a given value
@@ -226,6 +227,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
 #define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0)
diff --git a/arch/alpha/include/asm/local.h b/arch/alpha/include/asm/local.h
index b9e3e33..09fb327 100644
--- a/arch/alpha/include/asm/local.h
+++ b/arch/alpha/include/asm/local.h
@@ -79,6 +79,7 @@ static __inline__ long local_sub_return(long i, local_t * l)
 	c != (u);						\
 })
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 #define local_add_negative(a, l) (local_add_return((a), (l)) < 0)
 
diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index 7e79503..a005265 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -218,6 +218,7 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
 	return c != u;
 }
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 #define atomic_inc(v)		atomic_add(1, v)
 #define atomic_dec(v)		atomic_sub(1, v)
@@ -459,6 +460,7 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
 #define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1LL, 0LL)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
 
 #else /* !CONFIG_GENERIC_ATOMIC64 */
 #include <asm-generic/atomic64.h>
diff --git a/arch/avr32/include/asm/atomic.h b/arch/avr32/include/asm/atomic.h
index bbce6a1..e6f39c1 100644
--- a/arch/avr32/include/asm/atomic.h
+++ b/arch/avr32/include/asm/atomic.h
@@ -189,6 +189,7 @@ static inline int atomic_sub_if_positive(int i, atomic_t *v)
 #define atomic_add_negative(i, v) (atomic_add_return(i, v) < 0)
 
 #define atomic_inc_not_zero(v)	atomic_add_unless(v, 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 #define atomic_dec_if_positive(v) atomic_sub_if_positive(1, v)
 
 #define smp_mb__before_atomic_dec()	barrier()
diff --git a/arch/blackfin/include/asm/atomic.h b/arch/blackfin/include/asm/atomic.h
index e485089..900682e 100644
--- a/arch/blackfin/include/asm/atomic.h
+++ b/arch/blackfin/include/asm/atomic.h
@@ -103,6 +103,7 @@ static inline int atomic_test_mask(int mask, atomic_t *v)
 	c != (u);						\
 })
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 /*
  * atomic_inc_and_test - increment and test
diff --git a/arch/cris/include/asm/atomic.h b/arch/cris/include/asm/atomic.h
index 88dc9b9..9db2767 100644
--- a/arch/cris/include/asm/atomic.h
+++ b/arch/cris/include/asm/atomic.h
@@ -151,6 +151,7 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
 	return ret != u;
 }
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 /* Atomic operations are already serializing */
 #define smp_mb__before_atomic_dec()    barrier()
diff --git a/arch/frv/include/asm/atomic.h b/arch/frv/include/asm/atomic.h
index fae32c7..90f12a8 100644
--- a/arch/frv/include/asm/atomic.h
+++ b/arch/frv/include/asm/atomic.h
@@ -257,6 +257,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 #include <asm-generic/atomic-long.h>
 #endif /* _ASM_ATOMIC_H */
diff --git a/arch/h8300/include/asm/atomic.h b/arch/h8300/include/asm/atomic.h
index 984221a..eda4c8a 100644
--- a/arch/h8300/include/asm/atomic.h
+++ b/arch/h8300/include/asm/atomic.h
@@ -117,6 +117,7 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
 	return ret != u;
 }
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 static __inline__ void atomic_clear_mask(unsigned long mask, unsigned long *v)
 {
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
index 4468814..e2777a9 100644
--- a/arch/ia64/include/asm/atomic.h
+++ b/arch/ia64/include/asm/atomic.h
@@ -106,6 +106,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 static __inline__ long atomic64_add_unless(atomic64_t *v, long a, long u)
 {
@@ -123,6 +124,7 @@ static __inline__ long atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #define atomic_add_return(i,v)						\
 ({									\
diff --git a/arch/m32r/include/asm/atomic.h b/arch/m32r/include/asm/atomic.h
index d44a51e..4e0b4ec 100644
--- a/arch/m32r/include/asm/atomic.h
+++ b/arch/m32r/include/asm/atomic.h
@@ -263,6 +263,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 static __inline__ void atomic_clear_mask(unsigned long  mask, atomic_t *addr)
 {
diff --git a/arch/m32r/include/asm/local.h b/arch/m32r/include/asm/local.h
index 734bca8..d536082 100644
--- a/arch/m32r/include/asm/local.h
+++ b/arch/m32r/include/asm/local.h
@@ -272,6 +272,7 @@ static inline int local_add_unless(local_t *l, long a, long u)
 }
 
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 static inline void local_clear_mask(unsigned long  mask, local_t *addr)
 {
diff --git a/arch/m68k/include/asm/atomic.h b/arch/m68k/include/asm/atomic.h
index 03ae3d1..187a33f 100644
--- a/arch/m68k/include/asm/atomic.h
+++ b/arch/m68k/include/asm/atomic.h
@@ -199,6 +199,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 /* Atomic operations are already serializing */
 #define smp_mb__before_atomic_dec()	barrier()
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
index 4a02fe8..8c4109e 100644
--- a/arch/mips/include/asm/atomic.h
+++ b/arch/mips/include/asm/atomic.h
@@ -326,6 +326,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 	return c != (u);
 }
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 #define atomic_dec_return(v) atomic_sub_return(1, (v))
 #define atomic_inc_return(v) atomic_add_return(1, (v))
@@ -698,6 +699,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #define atomic64_dec_return(v) atomic64_sub_return(1, (v))
 #define atomic64_inc_return(v) atomic64_add_return(1, (v))
diff --git a/arch/mips/include/asm/local.h b/arch/mips/include/asm/local.h
index fffc830..c34d3ca 100644
--- a/arch/mips/include/asm/local.h
+++ b/arch/mips/include/asm/local.h
@@ -137,6 +137,7 @@ static __inline__ long local_sub_return(long i, local_t * l)
 	c != (u);						\
 })
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 #define local_dec_return(l) local_sub_return(1, (l))
 #define local_inc_return(l) local_add_return(1, (l))
diff --git a/arch/mn10300/include/asm/atomic.h b/arch/mn10300/include/asm/atomic.h
index 9d773a6..bcad5d1 100644
--- a/arch/mn10300/include/asm/atomic.h
+++ b/arch/mn10300/include/asm/atomic.h
@@ -270,6 +270,7 @@ static inline void atomic_dec(atomic_t *v)
 })
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 /**
  * atomic_clear_mask - Atomically clear bits in memory
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index f819559..c2353cf 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -221,6 +221,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 #define atomic_add(i,v)	((void)(__atomic_add_return( (i),(v))))
 #define atomic_sub(i,v)	((void)(__atomic_add_return(-(i),(v))))
@@ -335,6 +336,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #else /* CONFIG_64BIT */
 
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index b8f152e..906f49a 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h
@@ -213,6 +213,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 #define atomic_sub_and_test(a, v)	(atomic_sub_return((a), (v)) == 0)
 #define atomic_dec_and_test(v)		(atomic_dec_return((v)) == 0)
@@ -469,6 +470,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #else  /* __powerpc64__ */
 #include <asm-generic/atomic64.h>
diff --git a/arch/powerpc/include/asm/local.h b/arch/powerpc/include/asm/local.h
index c2410af..3d4c58a 100644
--- a/arch/powerpc/include/asm/local.h
+++ b/arch/powerpc/include/asm/local.h
@@ -134,6 +134,7 @@ static __inline__ int local_add_unless(local_t *l, long a, long u)
 }
 
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 #define local_sub_and_test(a, l)	(local_sub_return((a), (l)) == 0)
 #define local_dec_and_test(l)		(local_dec_return((l)) == 0)
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index d9db138..09972c3 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -109,6 +109,7 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 #undef __CS_LOOP
 
@@ -326,6 +327,7 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
 #define atomic64_dec_return(_v)		atomic64_sub_return(1, _v)
 #define atomic64_dec_and_test(_v)	(atomic64_sub_return(1, _v) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1, 0)
 
 #define smp_mb__before_atomic_dec()	smp_mb()
 #define smp_mb__after_atomic_dec()	smp_mb()
diff --git a/arch/sh/include/asm/atomic.h b/arch/sh/include/asm/atomic.h
index c798312..848849e 100644
--- a/arch/sh/include/asm/atomic.h
+++ b/arch/sh/include/asm/atomic.h
@@ -31,6 +31,7 @@
 #define atomic_sub_and_test(i,v)	(atomic_sub_return((i), (v)) == 0)
 #define atomic_dec_and_test(v)		(atomic_sub_return(1, (v)) == 0)
 #define atomic_inc_not_zero(v)		atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v)		atomic_add_unless((v), -1, 0)
 
 #define atomic_inc(v)			atomic_add(1, (v))
 #define atomic_dec(v)			atomic_sub(1, (v))
diff --git a/arch/sparc/include/asm/atomic_32.h b/arch/sparc/include/asm/atomic_32.h
index 7ae128b..c7da1e5 100644
--- a/arch/sparc/include/asm/atomic_32.h
+++ b/arch/sparc/include/asm/atomic_32.h
@@ -53,6 +53,7 @@ extern void atomic_set(atomic_t *, int);
 #define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 /* This is the old 24-bit implementation.  It's still used internally
  * by some sparc-specific code, notably the semaphore implementation.
diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
index bdb2ff8..23ad7cf 100644
--- a/arch/sparc/include/asm/atomic_64.h
+++ b/arch/sparc/include/asm/atomic_64.h
@@ -86,6 +86,7 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 #define atomic64_cmpxchg(v, o, n) \
 	((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
@@ -107,6 +108,7 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 /* Atomic operations are already serializing */
 #define smp_mb__before_atomic_dec()	barrier()
diff --git a/arch/tile/include/asm/atomic.h b/arch/tile/include/asm/atomic.h
index 75a1602..7fd7be2 100644
--- a/arch/tile/include/asm/atomic.h
+++ b/arch/tile/include/asm/atomic.h
@@ -130,6 +130,15 @@ static inline int atomic_read(const atomic_t *v)
  */
 #define atomic_inc_not_zero(v)		atomic_add_unless((v), 1, 0)
 
+/**
+ * atomic_dec_not_zero - decrement unless the number is zero
+ * @v: pointer of type atomic_t
+ *
+ * Atomically decrement @v by 1, so long as @v is non-zero.
+ * Returns non-zero if @v was non-zero, and zero otherwise.
+ */
+#define atomic_dec_not_zero(v)		atomic_add_unless((v), -1, 0)
+
 
 /*
  * We define xchg() and cmpxchg() in the included headers.
diff --git a/arch/tile/include/asm/atomic_32.h b/arch/tile/include/asm/atomic_32.h
index ed359aee..43137bd 100644
--- a/arch/tile/include/asm/atomic_32.h
+++ b/arch/tile/include/asm/atomic_32.h
@@ -243,6 +243,7 @@ static inline void atomic64_set(atomic64_t *v, u64 n)
 #define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1LL, 0LL)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
 
 /*
  * We need to barrier before modifying the word, since the _atomic_xxx()
diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
index 952a826..7102a0b 100644
--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -245,6 +245,7 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 /*
  * atomic_dec_if_positive - decrement by 1 if old value positive
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 49fd1ea..2cb37f4 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -220,6 +220,7 @@ static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 /*
  * atomic64_dec_if_positive - decrement by 1 if old value positive
diff --git a/arch/xtensa/include/asm/atomic.h b/arch/xtensa/include/asm/atomic.h
index a96a061..3b2a7b3 100644
--- a/arch/xtensa/include/asm/atomic.h
+++ b/arch/xtensa/include/asm/atomic.h
@@ -249,6 +249,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
 {
diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h
index b7babf0..0fe75ab 100644
--- a/include/asm-generic/atomic-long.h
+++ b/include/asm-generic/atomic-long.h
@@ -130,6 +130,7 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
 }
 
 #define atomic_long_inc_not_zero(l) atomic64_inc_not_zero((atomic64_t *)(l))
+#define atomic_long_dec_not_zero(l) atomic64_dec_not_zero((atomic64_t *)(l))
 
 #define atomic_long_cmpxchg(l, old, new) \
 	(atomic64_cmpxchg((atomic64_t *)(l), (old), (new)))
@@ -247,6 +248,7 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
 }
 
 #define atomic_long_inc_not_zero(l) atomic_inc_not_zero((atomic_t *)(l))
+#define atomic_long_dec_not_zero(l) atomic_dec_not_zero((atomic_t *)(l))
 
 #define atomic_long_cmpxchg(l, old, new) \
 	(atomic_cmpxchg((atomic_t *)(l), (old), (new)))
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
index e994197..4e1d3ef 100644
--- a/include/asm-generic/atomic.h
+++ b/include/asm-generic/atomic.h
@@ -139,6 +139,7 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
 {
diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
index b18ce4f..f301c46 100644
--- a/include/asm-generic/atomic64.h
+++ b/include/asm-generic/atomic64.h
@@ -38,5 +38,6 @@ extern int	 atomic64_add_unless(atomic64_t *v, long long a, long long u);
 #define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v) 	atomic64_add_unless((v), 1LL, 0LL)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
 
 #endif  /*  _ASM_GENERIC_ATOMIC64_H  */
diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
index c8a5d68..82ef01f 100644
--- a/include/asm-generic/local.h
+++ b/include/asm-generic/local.h
@@ -44,6 +44,7 @@ typedef struct
 #define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n))
 #define local_add_unless(l, _a, u) atomic_long_add_unless((&(l)->a), (_a), (u))
 #define local_inc_not_zero(l) atomic_long_inc_not_zero(&(l)->a)
+#define local_dec_not_zero(l) atomic_long_dec_not_zero(&(l)->a)
 
 /* Non-atomic variants, ie. preemption disabled and won't be touched
  * in interrupt, etc.  Some archs can optimize this case well. */
diff --git a/include/asm-generic/local64.h b/include/asm-generic/local64.h
index 02ac760..aa3a841 100644
--- a/include/asm-generic/local64.h
+++ b/include/asm-generic/local64.h
@@ -45,6 +45,7 @@ typedef struct {
 #define local64_xchg(l, n)	local_xchg((&(l)->a), (n))
 #define local64_add_unless(l, _a, u) local_add_unless((&(l)->a), (_a), (u))
 #define local64_inc_not_zero(l)	local_inc_not_zero(&(l)->a)
+#define local64_dec_not_zero(l)	local_dec_not_zero(&(l)->a)
 
 /* Non-atomic variants, ie. preemption disabled and won't be touched
  * in interrupt, etc.  Some archs can optimize this case well. */
@@ -83,6 +84,7 @@ typedef struct {
 #define local64_xchg(l, n)	atomic64_xchg((&(l)->a), (n))
 #define local64_add_unless(l, _a, u) atomic64_add_unless((&(l)->a), (_a), (u))
 #define local64_inc_not_zero(l)	atomic64_inc_not_zero(&(l)->a)
+#define local64_dec_not_zero(l)	atomic64_dec_not_zero(&(l)->a)
 
 /* Non-atomic variants, ie. preemption disabled and won't be touched
  * in interrupt, etc.  Some archs can optimize this case well. */
-- 
1.7.4.4


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Subject: Re: [PATCH] atomic: add *_dec_not_zero
Date: Wed, 4 May 2011 00:44:46 -0400
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	Chris Metcalf <cmetcalf@tilera.com>, x86@kernel.org,
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On Tue, May 3, 2011 at 17:30, Sven Eckelmann wrote:
> Introduce an *_dec_not_zero operation. =C2=A0Make this a special case=
 of
> *_add_unless because batman-adv uses atomic_dec_not_zero in different
> places like re-broadcast queue or aggregation queue management. There
> are other non-final patches which may also want to use this macro.
>
> Cc: uclinux-dist-devel@blackfin.uclinux.org
>
> --- a/arch/blackfin/include/asm/atomic.h
> +++ b/arch/blackfin/include/asm/atomic.h
> @@ -103,6 +103,7 @@ static inline int atomic_test_mask(int mask, atom=
ic_t *v)
>        c !=3D (u);                                               \
>  })
>  #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
> +#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
>
>  /*
>  * atomic_inc_and_test - increment and test

no opinion on the actual idea, but for the Blackfin pieces:
Acked-by: Mike Frysinger <vapier@gentoo.org>
-mike
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Subject: Re: [PATCH] atomic: add *_dec_not_zero
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From: Sven Eckelmann <sven@narfation.org>
Date: Tue,  3 May 2011 23:30:35 +0200

> Introduce an *_dec_not_zero operation.  Make this a special case of
> *_add_unless because batman-adv uses atomic_dec_not_zero in different
> places like re-broadcast queue or aggregation queue management. There
> are other non-final patches which may also want to use this macro.
> 
> Reported-by: David S. Miller <davem@davemloft.net>
> Signed-off-by: Sven Eckelmann <sven@narfation.org>

Acked-by: David S. Miller <davem@davemloft.net>

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Subject: Re: [PATCH] atomic: add *_dec_not_zero
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To: Sven Eckelmann <sven@narfation.org>
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* Sven Eckelmann <sven@narfation.org> wrote:

> Introduce an *_dec_not_zero operation.  Make this a special case of
> *_add_unless because batman-adv uses atomic_dec_not_zero in different
> places like re-broadcast queue or aggregation queue management. There
> are other non-final patches which may also want to use this macro.

>  arch/x86/include/asm/atomic.h      |    1 +
>  arch/x86/include/asm/atomic64_64.h |    1 +

Acked-by: Ingo Molnar <mingo@elte.hu>

Thanks,

	Ingo

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From: "David Laight" <David.Laight@ACULAB.COM>
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Subject: RE: [PATCH] atomic: add *_dec_not_zero
Date: Wed, 4 May 2011 09:05:53 +0100
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> Introduce an *_dec_not_zero operation.  Make this a special case of
> *_add_unless because batman-adv uses atomic_dec_not_zero in different
> places like re-broadcast queue or aggregation queue management. There
> are other non-final patches which may also want to use this macro.

Isn't there a place where a default definition of this can be
defined? Instead of adding it separately to every architecture.

	David


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From - Thu Nov 08 21:07:11 2018
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From: Sven Eckelmann <sven@narfation.org>
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Subject: Re: [PATCH] atomic: add *_dec_not_zero
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On Wednesday 04 May 2011 10:05:53 David Laight wrote:
> > Introduce an *_dec_not_zero operation.  Make this a special case of
> > *_add_unless because batman-adv uses atomic_dec_not_zero in different
> > places like re-broadcast queue or aggregation queue management. There
> > are other non-final patches which may also want to use this macro.
>=20
> Isn't there a place where a default definition of this can be
> defined? Instead of adding it separately to every architecture.

Not that I would know about such a place - and all other atomic* macro=20
definitions also suggest that there is no such place.

Kind regards,
	Sven

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From - Thu Nov 08 21:07:11 2018
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Subject: Re: [PATCH] atomic: add *_dec_not_zero
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On Wed, May 4, 2011 at 04:05, David Laight wrote:
>> Introduce an *_dec_not_zero operation. =C2=A0Make this a special cas=
e of
>> *_add_unless because batman-adv uses atomic_dec_not_zero in differen=
t
>> places like re-broadcast queue or aggregation queue management. Ther=
e
>> are other non-final patches which may also want to use this macro.
>
> Isn't there a place where a default definition of this can be
> defined? Instead of adding it separately to every architecture.

that's what asm-generic is for.  if the arch isnt using it, it's
either because the arch needs to convert to it, or they're using SMP
and asm-generic doesnt yet support that for atomic.h.

for example, the Blackfin port only needed updating for the SMP case.
in the non-SMP case, we're getting the def from asm-generic/atomic.h.
-mike

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Subject: Re: [PATCH] atomic: add *_dec_not_zero
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On Tue, May 03, 2011 at 11:30:35PM +0200, Sven Eckelmann wrote:
> Introduce an *_dec_not_zero operation.  Make this a special case of
> *_add_unless because batman-adv uses atomic_dec_not_zero in different
> places like re-broadcast queue or aggregation queue management. There
> are other non-final patches which may also want to use this macro.

For the CRIS-part:

Acked-by: Jesper Nilsson <jesper.nilsson-VrBV9hrLPhE@public.gmane.org>

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson-VrBV9hrLPhE@public.gmane.org

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Subject: Re: [PATCH] atomic: add *_dec_not_zero
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On Tue, May 03, 2011 at 11:30:35PM +0200, Sven Eckelmann wrote:

>  arch/mips/include/asm/atomic.h     |    2 ++
>  arch/mips/include/asm/local.h      |    1 +

Acked-by: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>

  Ralf

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Subject: Re: [PATCH] atomic: add *_dec_not_zero
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Sven Eckelmann <sven-KaDOiPu9UxWEi8DpZVb4nw@public.gmane.org> wrote:

> Introduce an *_dec_not_zero operation.  Make this a special case of
> *_add_unless because batman-adv uses atomic_dec_not_zero in different
> places like re-broadcast queue or aggregation queue management. There
> are other non-final patches which may also want to use this macro.
> 
> Reported-by: David S. Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
> Signed-off-by: Sven Eckelmann <sven-KaDOiPu9UxWEi8DpZVb4nw@public.gmane.org>

Acked-by: David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> [MN10300 and FRV]

From - Thu Nov 08 21:07:11 2018
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From: Chris Metcalf <cmetcalf@tilera.com>
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Subject: Re: [PATCH] atomic: add *_dec_not_zero
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To: Sven Eckelmann <sven@narfation.org>
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On 5/3/2011 5:30 PM, Sven Eckelmann wrote:
> Introduce an *_dec_not_zero operation.  Make this a special case of
> *_add_unless because batman-adv uses atomic_dec_not_zero in different
> places like re-broadcast queue or aggregation queue management. There
> are other non-final patches which may also want to use this macro.
>
> Reported-by: David S. Miller <davem@davemloft.net>
> Signed-off-by: Sven Eckelmann <sven@narfation.org>
> [...]
>  arch/tile/include/asm/atomic.h     |    9 +++++++++
>  arch/tile/include/asm/atomic_32.h  |    1 +

Acked-by: Chris Metcalf <cmetcalf@tilera.com>

-- 
Chris Metcalf, Tilera Corp.
http://www.tilera.com



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Subject: Re: [PATCH] atomic: add *_dec_not_zero
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On Tue, May 3, 2011 at 23:30, Sven Eckelmann <sven@narfation.org> wrote=
:
> Introduce an *_dec_not_zero operation. =C2=A0Make this a special case=
 of
> *_add_unless because batman-adv uses atomic_dec_not_zero in different
> places like re-broadcast queue or aggregation queue management. There
> are other non-final patches which may also want to use this macro.

> =C2=A0arch/m68k/include/asm/atomic.h =C2=A0 =C2=A0 | =C2=A0 =C2=A01 +

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

Gr{oetje,eeting}s,

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
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On Wed, 2011-05-04 at 00:44 -0400, Mike Frysinger wrote:
> On Tue, May 3, 2011 at 17:30, Sven Eckelmann wrote:
> > Introduce an *_dec_not_zero operation.  Make this a special case of
> > *_add_unless because batman-adv uses atomic_dec_not_zero in different
> > places like re-broadcast queue or aggregation queue management. There
> > are other non-final patches which may also want to use this macro.
> >
> > Cc: uclinux-dist-devel@blackfin.uclinux.org
> >
> > --- a/arch/blackfin/include/asm/atomic.h
> > +++ b/arch/blackfin/include/asm/atomic.h
> > @@ -103,6 +103,7 @@ static inline int atomic_test_mask(int mask, atomic_t *v)
> >        c != (u);                                               \
> >  })
> >  #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
> > +#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
> >
> >  /*
> >  * atomic_inc_and_test - increment and test
> 
> no opinion on the actual idea, but for the Blackfin pieces:
> Acked-by: Mike Frysinger <vapier@gentoo.org>

This goes for parisc as well.

Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com>

James


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From - Thu Nov 08 21:07:12 2018
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Subject: Re: [PATCH] atomic: add *_dec_not_zero
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On Tue, 2011-05-03 at 22:30 +0100, Sven Eckelmann wrote:
> Introduce an *_dec_not_zero operation.  Make this a special case of
> *_add_unless because batman-adv uses atomic_dec_not_zero in different
> places like re-broadcast queue or aggregation queue management. There
> are other non-final patches which may also want to use this macro.
> 
For the ARM changes:

Acked-by: Will Deacon <will.deacon@arm.com>

Cheers,

Will



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Subject: Re: [PATCH] atomic: add *_dec_not_zero
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On Tue, May 3, 2011 at 5:30 PM, Sven Eckelmann <sven@narfation.org> wro=
te:
> diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm=
/atomic.h
> index e756d04..7e9434e 100644
> --- a/arch/alpha/include/asm/atomic.h
> +++ b/arch/alpha/include/asm/atomic.h
> @@ -200,6 +200,7 @@ static __inline__ int atomic_add_unless(atomic_t =
*v, int a, int u)
> =A0}
>
> =A0#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
> +#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
>
> =A0/**
> =A0* atomic64_add_unless - add unless the number is a given value
> @@ -226,6 +227,7 @@ static __inline__ int atomic64_add_unless(atomic6=
4_t *v, long a, long u)
> =A0}
>
> =A0#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
> +#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
>
> =A0#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0=
)
> =A0#define atomic64_add_negative(a, v) (atomic64_add_return((a), (v))=
 < 0)
> diff --git a/arch/alpha/include/asm/local.h b/arch/alpha/include/asm/=
local.h
> index b9e3e33..09fb327 100644
> --- a/arch/alpha/include/asm/local.h
> +++ b/arch/alpha/include/asm/local.h
> @@ -79,6 +79,7 @@ static __inline__ long local_sub_return(long i, loc=
al_t * l)
> =A0 =A0 =A0 =A0c !=3D (u); =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
> =A0})
> =A0#define local_inc_not_zero(l) local_add_unless((l), 1, 0)
> +#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
>
> =A0#define local_add_negative(a, l) (local_add_return((a), (l)) < 0)
>

Acked-by: Matt Turner <mattst88@gmail.com> [alpha]

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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.drivers.e1000.devel,gmane.linux.network
Subject: Re: [E1000-devel] [PATCH] e1000: Allow the driver to be used on PA RISC C8000 workstation
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Am Freitag, 18. M=E4rz 2011, 17:39:57 schrieb Rolf Eike Beer:
> Am Mittwoch, 2. M=E4rz 2011, 21:19:24 schrieb Jesse Brandeburg:
> > On Mon, Feb 28, 2011 at 5:40 AM, Guy Martin <gmsoft@tuxicoman.be> w=
rote:
> > > Hi Jeff,
> > >=20
> > > Any luck getting this into mainline ?
> >=20
> > Hi Guy, sorry for the delay,
> > We haven't been able to get our contacts in HP to give us a decent
> > response so far, we are following up with them to see whats up.  We=

> > have not lost the patch and are still tracking it internally.
> >=20
> > Give us a couple more weeks if that is okay and we should be able t=
o
> > settle this by then.

> I wonder what exactly you are waiting for? This is a sanity check tha=
t we
> disable, so no working systems could get broken by this. And every si=
ngle
> C8000 seems to be affected by this and is working fine with that patc=
h. So
> maybe people at HP might have a clue _why_ this is screwed, but until=
 then
> I don't see any point in waiting.
>=20
> So please just add my tested-by and push this upstream soon. Since th=
is is
> basically a hardware quirk I would like to get this into stable also =
so we
> may run vanilla 2.6.38.1 or something like that on C8000.
>=20
> Tested-by: Rolf Eike Beer <eike-kernel@sf-tec.de>

For the netdev folks: it's this patch we are talking about

http://www.spinics.net/lists/linux-parisc/msg03091.html

I would love to see that someone finally picks this up and pushes this=20=

upstream, CC stable. This is absolutely annoying as it breaks every tim=
e=20
anyone touches the kernel on one of this machines.

Jeff, David, James: can you please make a decision of who takes this an=
d then=20
just do it?

Eike
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From: Russell King - ARM Linux <linux@arm.linux.org.uk>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH] atomic: add *_dec_not_zero
Date: Sun, 8 May 2011 10:24:03 +0100
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To: Sven Eckelmann <sven@narfation.org>
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On Tue, May 03, 2011 at 11:30:35PM +0200, Sven Eckelmann wrote:
> Introduce an *_dec_not_zero operation.  Make this a special case of
> *_add_unless because batman-adv uses atomic_dec_not_zero in different
> places like re-broadcast queue or aggregation queue management. There
> are other non-final patches which may also want to use this macro.
...
> diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
> index 7e79503..a005265 100644
> --- a/arch/arm/include/asm/atomic.h
> +++ b/arch/arm/include/asm/atomic.h
> @@ -218,6 +218,7 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
>  	return c != u;
>  }
>  #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
> +#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
>  
>  #define atomic_inc(v)		atomic_add(1, v)
>  #define atomic_dec(v)		atomic_sub(1, v)
> @@ -459,6 +460,7 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
>  #define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
>  #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
>  #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1LL, 0LL)
> +#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
>  
>  #else /* !CONFIG_GENERIC_ATOMIC64 */
>  #include <asm-generic/atomic64.h>

Do we need atomic_dec_not_zero() et.al. in every arch header - is there no
generic header which it could be added to?

From - Thu Nov 08 21:07:12 2018
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From: Sven Eckelmann <sven@narfation.org>
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Subject: Re: [PATCH] atomic: add *_dec_not_zero
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Russell King - ARM Linux wrote:
[...]
> Do we need atomic_dec_not_zero() et.al. in every arch header - is there no
> generic header which it could be added to?

Mike Frysinger already tried to answer it in=20
<BANLkTimctgbto3dsnJ3d3r7NggS0KF9_Sw@mail.gmail.com>:
> that's what asm-generic is for.  if the arch isnt using it, it's
> either because the arch needs to convert to it, or they're using SMP
> and asm-generic doesnt yet support that for atomic.h.
>
> for example, the Blackfin port only needed updating for the SMP case.
> in the non-SMP case, we're getting the def from asm-generic/atomic.h.
> -mike

=46eel free to change that but I just followed the style used by all other=
=20
macros and will not redesign the complete atomic*.h idea.

thanks,
	Sven

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From - Thu Nov 08 21:07:13 2018
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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH] Don't mlock guardpage if the stack is growing up
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Don't mlock guardpage if the stack is growing up

Linux kernel excludes guard page when performing mlock on a VMA with 
down-growing stack. However, some architectures have up-growing stack and 
locking the guard page should be excluded in this case too.

This patch fixes lvm2 on PA-RISC (and possibly other architectures with 
up-growing stack). lvm2 calculates the number of used pages when locking 
and when unlocking and reports an internal error if the numbers mismatch. 
On PA-RISC, the kernel would incorrectly attempt to mlock the stack guard 
page, this causes allocation of one more page and internal error in lvm2.

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>

---
 include/linux/mm.h |    6 ++++++
 mm/memory.c        |   21 ++++++++++++---------
 2 files changed, 18 insertions(+), 9 deletions(-)

Index: linux-2.6.39-rc6-fast/include/linux/mm.h
===================================================================
--- linux-2.6.39-rc6-fast.orig/include/linux/mm.h	2011-05-07 05:59:51.000000000 +0200
+++ linux-2.6.39-rc6-fast/include/linux/mm.h	2011-05-07 05:59:52.000000000 +0200
@@ -1016,6 +1016,12 @@ static inline int vma_stack_continue(str
 	return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
 }
 
+/* Is the vma a continuation of the stack vma below it? */
+static inline int vma_stack_growsup_continue(struct vm_area_struct *vma, unsigned long addr)
+{
+	return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP);
+}
+
 extern unsigned long move_page_tables(struct vm_area_struct *vma,
 		unsigned long old_addr, struct vm_area_struct *new_vma,
 		unsigned long new_addr, unsigned long len);
Index: linux-2.6.39-rc6-fast/mm/memory.c
===================================================================
--- linux-2.6.39-rc6-fast.orig/mm/memory.c	2011-05-07 05:59:51.000000000 +0200
+++ linux-2.6.39-rc6-fast/mm/memory.c	2011-05-07 05:59:52.000000000 +0200
@@ -1412,9 +1412,12 @@ no_page_table:
 
 static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)
 {
-	return (vma->vm_flags & VM_GROWSDOWN) &&
+	return ((vma->vm_flags & VM_GROWSDOWN) &&
 		(vma->vm_start == addr) &&
-		!vma_stack_continue(vma->vm_prev, addr);
+		!vma_stack_continue(vma->vm_prev, addr)) ||
+	       ((vma->vm_flags & VM_GROWSUP) &&
+		(vma->vm_end == addr + PAGE_SIZE) &&
+		!vma_stack_growsup_continue(vma->vm_next, addr + PAGE_SIZE));
 }
 
 /**
@@ -1551,18 +1554,18 @@ int __get_user_pages(struct task_struct 
 			continue;
 		}
 
-		/*
-		 * If we don't actually want the page itself,
-		 * and it's the stack guard page, just skip it.
-		 */
-		if (!pages && stack_guard_page(vma, start))
-			goto next_page;
-
 		do {
 			struct page *page;
 			unsigned int foll_flags = gup_flags;
 
 			/*
+			 * If we don't actually want the page itself,
+			 * and it's the stack guard page, just skip it.
+			 */
+			if (!pages && stack_guard_page(vma, start))
+				goto next_page;
+
+			/*
 			 * If we have a pending SIGKILL, don't keep faulting
 			 * pages and potentially allocating memory.
 			 */

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Cc: linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
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To: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
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On Sun, 8 May 2011, Mikulas Patocka wrote:

> Don't mlock guardpage if the stack is growing up
> 
> Linux kernel excludes guard page when performing mlock on a VMA with 
> down-growing stack. However, some architectures have up-growing stack and 
> locking the guard page should be excluded in this case too.
> 
> This patch fixes lvm2 on PA-RISC (and possibly other architectures with 
> up-growing stack). lvm2 calculates the number of used pages when locking 
> and when unlocking and reports an internal error if the numbers mismatch. 
> On PA-RISC, the kernel would incorrectly attempt to mlock the stack guard 
> page, this causes allocation of one more page and internal error in lvm2.
> 
> Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>

Interesting, I'd convinced myself that the growsup case was safe,
because of how we always approach the vma from its bottom end.

I've added Michel to the Cc, he's the one with the best grasp here.

Could you point us to where lvm2 is making these calculations?
I don't understand quite what it's doing.

Thanks,
Hugh

> 
> ---
>  include/linux/mm.h |    6 ++++++
>  mm/memory.c        |   21 ++++++++++++---------
>  2 files changed, 18 insertions(+), 9 deletions(-)
> 
> Index: linux-2.6.39-rc6-fast/include/linux/mm.h
> ===================================================================
> --- linux-2.6.39-rc6-fast.orig/include/linux/mm.h	2011-05-07 05:59:51.000000000 +0200
> +++ linux-2.6.39-rc6-fast/include/linux/mm.h	2011-05-07 05:59:52.000000000 +0200
> @@ -1016,6 +1016,12 @@ static inline int vma_stack_continue(str
>  	return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
>  }
>  
> +/* Is the vma a continuation of the stack vma below it? */
> +static inline int vma_stack_growsup_continue(struct vm_area_struct *vma, unsigned long addr)
> +{
> +	return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP);
> +}
> +
>  extern unsigned long move_page_tables(struct vm_area_struct *vma,
>  		unsigned long old_addr, struct vm_area_struct *new_vma,
>  		unsigned long new_addr, unsigned long len);
> Index: linux-2.6.39-rc6-fast/mm/memory.c
> ===================================================================
> --- linux-2.6.39-rc6-fast.orig/mm/memory.c	2011-05-07 05:59:51.000000000 +0200
> +++ linux-2.6.39-rc6-fast/mm/memory.c	2011-05-07 05:59:52.000000000 +0200
> @@ -1412,9 +1412,12 @@ no_page_table:
>  
>  static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)
>  {
> -	return (vma->vm_flags & VM_GROWSDOWN) &&
> +	return ((vma->vm_flags & VM_GROWSDOWN) &&
>  		(vma->vm_start == addr) &&
> -		!vma_stack_continue(vma->vm_prev, addr);
> +		!vma_stack_continue(vma->vm_prev, addr)) ||
> +	       ((vma->vm_flags & VM_GROWSUP) &&
> +		(vma->vm_end == addr + PAGE_SIZE) &&
> +		!vma_stack_growsup_continue(vma->vm_next, addr + PAGE_SIZE));
>  }
>  
>  /**
> @@ -1551,18 +1554,18 @@ int __get_user_pages(struct task_struct 
>  			continue;
>  		}
>  
> -		/*
> -		 * If we don't actually want the page itself,
> -		 * and it's the stack guard page, just skip it.
> -		 */
> -		if (!pages && stack_guard_page(vma, start))
> -			goto next_page;
> -
>  		do {
>  			struct page *page;
>  			unsigned int foll_flags = gup_flags;
>  
>  			/*
> +			 * If we don't actually want the page itself,
> +			 * and it's the stack guard page, just skip it.
> +			 */
> +			if (!pages && stack_guard_page(vma, start))
> +				goto next_page;
> +
> +			/*
>  			 * If we have a pending SIGKILL, don't keep faulting
>  			 * pages and potentially allocating memory.
>  			 */
--
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Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
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On Sun, May 8, 2011 at 11:55 AM, Mikulas Patocka
<mikulas@artax.karlin.mff.cuni.cz> wrote:
>
> This patch fixes lvm2 on PA-RISC (and possibly other architectures wi=
th
> up-growing stack). lvm2 calculates the number of used pages when lock=
ing
> and when unlocking and reports an internal error if the numbers misma=
tch.

This patch won't apply on current kernels (including stable) because
of commit a1fde08c74e9 that changed the test of "pages" to instead
just test "flags & FOLL_MLOCK".

That should be trivial to fix up.

However, I really don't much like this complex test:

> =A0static inline int stack_guard_page(struct vm_area_struct *vma, uns=
igned long addr)
> =A0{
> - =A0 =A0 =A0 return (vma->vm_flags & VM_GROWSDOWN) &&
> + =A0 =A0 =A0 return ((vma->vm_flags & VM_GROWSDOWN) &&
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0(vma->vm_start =3D=3D addr) &&
> - =A0 =A0 =A0 =A0 =A0 =A0 =A0 !vma_stack_continue(vma->vm_prev, addr)=
;
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 !vma_stack_continue(vma->vm_prev, addr)=
) ||
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0((vma->vm_flags & VM_GROWSUP) &&
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 (vma->vm_end =3D=3D addr + PAGE_SIZE) &=
&
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 !vma_stack_growsup_continue(vma->vm_nex=
t, addr + PAGE_SIZE));
> =A0}

in that format. It gets really hard to read, and I think you'd be
better off writing it as two helper functions (or macros) for the two
cases, and then have

  static inline int stack_guard_page(struct vm_area_struct *vma,
unsigned long addr)
  {
    return stack_guard_page_growsdown(vma, addr) ||
      stack_guard_page_growsup(vma, addr);
  }

I'd also like to verify that it doesn't actually generate any extra
code for the common case (iirc VM_GROWSUP is 0 for the architectures
that don't need it, and so the compiler shouldn't generate any extra
code, but I'd like that mentioned and verified explicitly).

Hmm?

Other than that it looks ok to me.

That said, could we please fix LVM to not do that crazy sh*t in the
first place? The STACK_GROWSUP case is never going to have a lot of
testing, this is just sad.

                   Linus
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On Tue, 2011-05-03 at 23:30 +0200, Sven Eckelmann wrote:
> Introduce an *_dec_not_zero operation.  Make this a special case of
> *_add_unless because batman-adv uses atomic_dec_not_zero in different
> places like re-broadcast queue or aggregation queue management. There
> are other non-final patches which may also want to use this macro.

For arch/powerpc:

Acked-by: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>

(Sorry for catching up late)

Cheers,
Ben.

> diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
> index b8f152e..906f49a 100644
> --- a/arch/powerpc/include/asm/atomic.h
> +++ b/arch/powerpc/include/asm/atomic.h
> @@ -213,6 +213,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
>  }
>  
>  #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
> +#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
>  
>  #define atomic_sub_and_test(a, v)	(atomic_sub_return((a), (v)) == 0)
>  #define atomic_dec_and_test(v)		(atomic_dec_return((v)) == 0)
> @@ -469,6 +470,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
>  }
>  
>  #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
> +#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
>  
>  #else  /* __powerpc64__ */
>  #include <asm-generic/atomic64.h>
> diff --git a/arch/powerpc/include/asm/local.h b/arch/powerpc/include/asm/local.h
> index c2410af..3d4c58a 100644
> --- a/arch/powerpc/include/asm/local.h
> +++ b/arch/powerpc/include/asm/local.h
> @@ -134,6 +134,7 @@ static __inline__ int local_add_unless(local_t *l, long a, long u)
>  }
>  
>  #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
> +#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
>  
>  #define local_sub_and_test(a, l)	(local_sub_return((a), (l)) == 0)
>  #define local_dec_and_test(l)		(local_dec_return((l)) == 0)

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On Sun, May 8, 2011 at 05:33, Sven Eckelmann wrote:
> Russell King - ARM Linux wrote:
> [...]
>> Do we need atomic_dec_not_zero() et.al. in every arch header - is th=
ere no
>> generic header which it could be added to?
>
> Mike Frysinger already tried to answer it in
> <BANLkTimctgbto3dsnJ3d3r7NggS0KF9_Sw@mail.gmail.com>:
>> that's what asm-generic is for. =C2=A0if the arch isnt using it, it'=
s
>> either because the arch needs to convert to it, or they're using SMP
>> and asm-generic doesnt yet support that for atomic.h.
>>
>> for example, the Blackfin port only needed updating for the SMP case=
=2E
>> in the non-SMP case, we're getting the def from asm-generic/atomic.h=
=2E
>
> Feel free to change that but I just followed the style used by all ot=
her
> macros and will not redesign the complete atomic*.h idea.

what you're doing is currently correct.  i think merging SMP support
into asm-generic for atomic* will take a bit of pondering first.
-mike
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Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
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On Sun, 8 May 2011, Linus Torvalds wrote:

> On Sun, May 8, 2011 at 11:55 AM, Mikulas Patocka
> <mikulas@artax.karlin.mff.cuni.cz> wrote:
> >
> > This patch fixes lvm2 on PA-RISC (and possibly other architectures with
> > up-growing stack). lvm2 calculates the number of used pages when locking
> > and when unlocking and reports an internal error if the numbers mismatch.
> 
> This patch won't apply on current kernels (including stable) because
> of commit a1fde08c74e9 that changed the test of "pages" to instead
> just test "flags & FOLL_MLOCK".
> 
> That should be trivial to fix up.
> 
> However, I really don't much like this complex test:
> 
> > static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)
> > {
> > -    return (vma->vm_flags & VM_GROWSDOWN) &&
> > +    return ((vma->vm_flags & VM_GROWSDOWN) &&
> >        (vma->vm_start == addr) &&
> > -        !vma_stack_continue(vma->vm_prev, addr);
> > +        !vma_stack_continue(vma->vm_prev, addr)) ||
> > +       ((vma->vm_flags & VM_GROWSUP) &&
> > +        (vma->vm_end == addr + PAGE_SIZE) &&
> > +        !vma_stack_growsup_continue(vma->vm_next, addr + PAGE_SIZE));
> > }
> 
> in that format. It gets really hard to read, and I think you'd be
> better off writing it as two helper functions (or macros) for the two
> cases, and then have
> 
>   static inline int stack_guard_page(struct vm_area_struct *vma,
> unsigned long addr)
>   {
>     return stack_guard_page_growsdown(vma, addr) ||
>       stack_guard_page_growsup(vma, addr);
>   }
> 
> I'd also like to verify that it doesn't actually generate any extra
> code for the common case (iirc VM_GROWSUP is 0 for the architectures
> that don't need it, and so the compiler shouldn't generate any extra
> code, but I'd like that mentioned and verified explicitly).
> 
> Hmm?
> 
> Other than that it looks ok to me.
> 
> That said, could we please fix LVM to not do that crazy sh*t in the
> first place? The STACK_GROWSUP case is never going to have a lot of
> testing, this is just sad.

LVM reads process maps from /proc/self/maps and locks them with mlock.

Why it doesn't use mlockall()? Because glibc maps all locales to the 
process. Glibc packs all locales to a 100MB file and maps that file to 
every process. Even if the process uses just one locale, glibc maps all.

So, when LVM used mlockall, it consumed >100MB memory and it caused 
out-of-memory problems in system installers.

So, alternate way of locking was added to LVM --- read all maps and lock 
them, except for the glibc locale file.

The real fix would be to fix glibc not to map 100MB to every process.

>                    Linus
> 

This is updated patch. I tested it on x86-64 and it doesn't change 
generated code.

Mikulas

---

Don't lock guardpage if the stack is growing up

Linux kernel excludes guard page when performing mlock on a VMA with
down-growing stack. However, some architectures have up-growing stack
and locking the guard page should be excluded in this case too.

This patch fixes lvm2 on PA-RISC (and possibly other architectures with
up-growing stack). lvm2 calculates number of used pages when locking and
when unlocking and reports an internal error if the numbers mismatch.

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>

---
 include/linux/mm.h |   10 +++++++++-
 mm/memory.c        |   21 ++++++++++++++++++---
 2 files changed, 27 insertions(+), 4 deletions(-)

Index: linux-2.6/include/linux/mm.h
===================================================================
--- linux-2.6.orig/include/linux/mm.h	2011-05-09 12:33:50.000000000 +0200
+++ linux-2.6/include/linux/mm.h	2011-05-09 12:42:05.000000000 +0200
@@ -1011,11 +1011,19 @@ int set_page_dirty_lock(struct page *pag
 int clear_page_dirty_for_io(struct page *page);
 
 /* Is the vma a continuation of the stack vma above it? */
-static inline int vma_stack_continue(struct vm_area_struct *vma, unsigned long addr)
+static inline int vma_stack_growsdown_continue(struct vm_area_struct *vma,
+					       unsigned long addr)
 {
 	return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
 }
 
+/* Is the vma a continuation of the stack vma below it? */
+static inline int vma_stack_growsup_continue(struct vm_area_struct *vma,
+					     unsigned long addr)
+{
+	return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP);
+}
+
 extern unsigned long move_page_tables(struct vm_area_struct *vma,
 		unsigned long old_addr, struct vm_area_struct *new_vma,
 		unsigned long new_addr, unsigned long len);
Index: linux-2.6/mm/memory.c
===================================================================
--- linux-2.6.orig/mm/memory.c	2011-05-09 12:33:51.000000000 +0200
+++ linux-2.6/mm/memory.c	2011-05-09 12:41:38.000000000 +0200
@@ -1410,11 +1410,21 @@ no_page_table:
 	return page;
 }
 
-static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)
+static inline int stack_guard_page_growsdown(struct vm_area_struct *vma,
+					     unsigned long addr)
 {
 	return (vma->vm_flags & VM_GROWSDOWN) &&
 		(vma->vm_start == addr) &&
-		!vma_stack_continue(vma->vm_prev, addr);
+		!vma_stack_growsdown_continue(vma->vm_prev, addr);
+}
+
+
+static inline int stack_guard_page_growsup(struct vm_area_struct *vma,
+					   unsigned long addr)
+{
+	return (vma->vm_flags & VM_GROWSUP) &&
+		(vma->vm_end == addr + PAGE_SIZE) &&
+		!vma_stack_growsup_continue(vma->vm_next, addr + PAGE_SIZE);
 }
 
 /**
@@ -1554,13 +1564,18 @@ int __get_user_pages(struct task_struct 
 		/*
 		 * For mlock, just skip the stack guard page.
 		 */
-		if ((gup_flags & FOLL_MLOCK) && stack_guard_page(vma, start))
+		if ((gup_flags & FOLL_MLOCK) &&
+		    stack_guard_page_growsdown(vma, start))
 			goto next_page;
 
 		do {
 			struct page *page;
 			unsigned int foll_flags = gup_flags;
 
+			if ((gup_flags & FOLL_MLOCK) &&
+			    stack_guard_page_growsup(vma, start))
+				goto next_page;
+
 			/*
 			 * If we have a pending SIGKILL, don't keep faulting
 			 * pages and potentially allocating memory.
--1908654874-151666094-1304938869=:32299--
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On Sun, 8 May 2011, Hugh Dickins wrote:

> On Sun, 8 May 2011, Mikulas Patocka wrote:
> 
> > Don't mlock guardpage if the stack is growing up
> > 
> > Linux kernel excludes guard page when performing mlock on a VMA with 
> > down-growing stack. However, some architectures have up-growing stack and 
> > locking the guard page should be excluded in this case too.
> > 
> > This patch fixes lvm2 on PA-RISC (and possibly other architectures with 
> > up-growing stack). lvm2 calculates the number of used pages when locking 
> > and when unlocking and reports an internal error if the numbers mismatch. 
> > On PA-RISC, the kernel would incorrectly attempt to mlock the stack guard 
> > page, this causes allocation of one more page and internal error in lvm2.
> > 
> > Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
> 
> Interesting, I'd convinced myself that the growsup case was safe,
> because of how we always approach the vma from its bottom end.
> 
> I've added Michel to the Cc, he's the one with the best grasp here.
> 
> Could you point us to where lvm2 is making these calculations?
> I don't understand quite what it's doing.
> 
> Thanks,
> Hugh

See ./lib/mm/memlock.c in LVM2. It reads /proc/self/maps, parses the file 
and locks each map with mlock, except for glibc locale file.

It calculates how much memory it took when locking and unlocking and 
prints an internal error if the numbers differ. The internal error 
normally means that there was some memory allocated while it was locked 
(that is wrong).

However, on up-growing stack, the internal error is always triggered, 
because mlock() of the stack touches the guard page and allocates one more 
page.

Mikulas
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Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
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Dne 9.5.2011 13:01, Mikulas Patocka napsal(a):
> 
> 
> On Sun, 8 May 2011, Linus Torvalds wrote:
> 
>> On Sun, May 8, 2011 at 11:55 AM, Mikulas Patocka
>> <mikulas@artax.karlin.mff.cuni.cz> wrote:
>>>
>>> This patch fixes lvm2 on PA-RISC (and possibly other architectures with
>>> up-growing stack). lvm2 calculates the number of used pages when locking
>>> and when unlocking and reports an internal error if the numbers mismatch.
>>
>> This patch won't apply on current kernels (including stable) because
>> of commit a1fde08c74e9 that changed the test of "pages" to instead
>> just test "flags & FOLL_MLOCK".
>>
>> That should be trivial to fix up.
>>
>> However, I really don't much like this complex test:
>>
>>>  static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)
>>>  {
>>> -       return (vma->vm_flags & VM_GROWSDOWN) &&
>>> +       return ((vma->vm_flags & VM_GROWSDOWN) &&
>>>                (vma->vm_start == addr) &&
>>> -               !vma_stack_continue(vma->vm_prev, addr);
>>> +               !vma_stack_continue(vma->vm_prev, addr)) ||
>>> +              ((vma->vm_flags & VM_GROWSUP) &&
>>> +               (vma->vm_end == addr + PAGE_SIZE) &&
>>> +               !vma_stack_growsup_continue(vma->vm_next, addr + PAGE_SIZE));
>>>  }
>>
>> in that format. It gets really hard to read, and I think you'd be
>> better off writing it as two helper functions (or macros) for the two
>> cases, and then have
>>
>>   static inline int stack_guard_page(struct vm_area_struct *vma,
>> unsigned long addr)
>>   {
>>     return stack_guard_page_growsdown(vma, addr) ||
>>       stack_guard_page_growsup(vma, addr);
>>   }
>>
>> I'd also like to verify that it doesn't actually generate any extra
>> code for the common case (iirc VM_GROWSUP is 0 for the architectures
>> that don't need it, and so the compiler shouldn't generate any extra
>> code, but I'd like that mentioned and verified explicitly).
>>
>> Hmm?
>>
>> Other than that it looks ok to me.
>>
>> That said, could we please fix LVM to not do that crazy sh*t in the
>> first place? The STACK_GROWSUP case is never going to have a lot of
>> testing, this is just sad.
> 
> LVM reads process maps from /proc/self/maps and locks them with mlock.
> 
> Why it doesn't use mlockall()? Because glibc maps all locales to the 
> process. Glibc packs all locales to a 100MB file and maps that file to 
> every process. Even if the process uses just one locale, glibc maps all.
> 
> So, when LVM used mlockall, it consumed >100MB memory and it caused 
> out-of-memory problems in system installers.
> 
> So, alternate way of locking was added to LVM --- read all maps and lock 
> them, except for the glibc locale file.
> 
> The real fix would be to fix glibc not to map 100MB to every process.
> 

I should add here probably few words.

Glibc knows few more ways around - so it could work only with one locale file
per language, or even without using mmap and allocating them in memory.
Depends on the distribution usually - Fedora decided to combine all locales
into one huge file (>100MB) - Ubuntu/Debian mmaps each locales individually
(usually ~MB)

LVM support both ways - either user may select in lvm.conf to always use
mlockall, or he may switch to use mlock mapping of individual memory areas
where those memory parts, that cannot be executed during suspend state and
cannot cause memory deadlock, are not locked into memory. As a 'bonus' it's
internally used for tracking algorithmic bugs.

Zdenek
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On Mon, May 9, 2011 at 4:12 AM, Mikulas Patocka
<mikulas@artax.karlin.mff.cuni.cz> wrote:
>
> See ./lib/mm/memlock.c in LVM2. It reads /proc/self/maps, parses the file
> and locks each map with mlock, except for glibc locale file.

Hmm. One thing that strikes me is this problem also implies that the
/proc/self/maps file is wrong for the GROWSUP case, isn't it?

So I think we should not just apply your lock fix, but then *also*
apply something like this:

    diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
    index 2e7addfd9803..080980880c7f 100644
    --- a/fs/proc/task_mmu.c
    +++ b/fs/proc/task_mmu.c
    @@ -214,7 +214,7 @@ static void show_map_vma(struct seq_file *m,
struct vm_area_struct *vma)
     	int flags = vma->vm_flags;
     	unsigned long ino = 0;
     	unsigned long long pgoff = 0;
    -	unsigned long start;
    +	unsigned long start, end;
     	dev_t dev = 0;
     	int len;

    @@ -227,13 +227,16 @@ static void show_map_vma(struct seq_file *m,
struct vm_area_struct *vma)

     	/* We don't show the stack guard page in /proc/maps */
     	start = vma->vm_start;
    -	if (vma->vm_flags & VM_GROWSDOWN)
    -		if (!vma_stack_continue(vma->vm_prev, vma->vm_start))
    -			start += PAGE_SIZE;
    +	if (stack_guard_page_growsdown(vma, start))
    +		start += PAGE_SIZE;
    +	end = vma->vm_end;
    +	if (stack_guard_page_growsup(vma, end))
    +		end -= PAGE_SIZE;
    +

     	seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
     			start,
    -			vma->vm_end,
    +			end,
     			flags & VM_READ ? 'r' : '-',
     			flags & VM_WRITE ? 'w' : '-',
     			flags & VM_EXEC ? 'x' : '-',

NOTE! The above actually assumes that your
"stack_guard_page_growsup()" has been changed to actually take the
"next page" value, which I think makes more sense (ie it's the "end of
stack", the same way "stack_guard_page_growsdown()" address is).

Hmm? I don't have any growsup machine to test with, can you do that?

                        Linus
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On Mon, May 09, 2011 at 01:43:59PM +0200, Zdenek Kabelac wrote:
> Dne 9.5.2011 13:01, Mikulas Patocka napsal(a):
> > So, when LVM used mlockall, it consumed >100MB memory and it caused 
> > out-of-memory problems in system installers.

The way glibc and some distros have implemented locales makes mlockall()
quite useless for many purposes now in practice IMHO.  We discussed the
options at the time and wrote the extra code to implement the only
solution we were offered.

(1) There was no possibility of some distros not using a single locale
database (reasons: optimisation and packaging convenience);
(2) there was no possibility of glibc providing a mechanism to unmap the
locale database (if you reset your locale to the default glibc will not
unmap the file and indeed doesn't rule out doing something similar with
other files in future - these are glibc internals and it's none of our
business).

Alasdair


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On Mon, May 9, 2011 at 8:57 AM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> Hmm. One thing that strikes me is this problem also implies that the
> /proc/self/maps file is wrong for the GROWSUP case, isn't it?
>
> So I think we should not just apply your lock fix, but then *also*
> apply something like this:

Actually, I think we might be better off with something like this.

It makes a few more changes:

 - move the stack guard page checking in __get_user_pages() into the
rare case (ie we didn't find a page), since that's the only case we
care about (the thing about the guard page is that don't want to call
"handle_mm_fault()"). As a result, it's off any path where we can
possibly care about performance, so we might as well have a nice
helper function for both the grow-up and grow-down cases, instead of
trying to be clever and only look at the grow-down case for the first
page in the vma like you did in your patch.

   End result: simpler, more straightforward code.

 - Move the growsup/down helper functions to <linux/mm.h>, since the
/proc code really wants to use them too. That means that the
"vma_stack_continue()" function (which now got split up into two
cases, for the up/down cases) is now entirely just an internal helper
function - nobody else uses it, and the real interface are the
"stack_guard_page_xyz()"  functions. Renamed to be simpler.

 - changed that naming of those stack_guard_page functions to use
_start and _end instead of growsup/growsdown, since it actually takes
the start or the end of the page as the argument (to match the
semantics of the afore-mentioned helpers)

 - and finally, make /proc/<pid>/maps use these helpers for both the
up/down case, so now /proc/self/maps should work well for the growsup
case too.

Hmm?

The only oddish case is IA64 that actually has a stack that grows
*both* up and down. That means that I could make up a stack mapping
that has a single virtual page in it, that is both the start *and* the
end page. Now /proc/self/maps would actually show such a mapping with
"negative" size. That's interesting.

It would be easy enough to have a "if (end < start) end = start" there
for that case, but maybe it's actually interesting information.

Regardless, I'd like to hear whether this patch really does work on
PA-RISC and especially IA64. I think those are the only cases that
have a GROWSUP stack. And the IA64 case that supports both is the most
interesting, everybody else does just one or the other.

                    Linus

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Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
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On Mon, 2011-05-09 at 15:07 -0700, Linus Torvalds wrote:
> Regardless, I'd like to hear whether this patch really does work on
> PA-RISC and especially IA64. I think those are the only cases that
> have a GROWSUP stack. And the IA64 case that supports both is the most
> interesting, everybody else does just one or the other.

So I can test the patch, if you tell me how.  I don't use lvm2, so it
would have to be a simple test case.

James


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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Mon, 9 May 2011, Linus Torvalds wrote:

> On Mon, May 9, 2011 at 8:57 AM, Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
> >
> > Hmm. One thing that strikes me is this problem also implies that the
> > /proc/self/maps file is wrong for the GROWSUP case, isn't it?
> >
> > So I think we should not just apply your lock fix, but then *also*
> > apply something like this:
> 
> Actually, I think we might be better off with something like this.
> 
> It makes a few more changes:
> 
>  - move the stack guard page checking in __get_user_pages() into the
> rare case (ie we didn't find a page), since that's the only case we
> care about (the thing about the guard page is that don't want to call
> "handle_mm_fault()"). As a result, it's off any path where we can
> possibly care about performance, so we might as well have a nice
> helper function for both the grow-up and grow-down cases, instead of
> trying to be clever and only look at the grow-down case for the first
> page in the vma like you did in your patch.
> 
>    End result: simpler, more straightforward code.
> 
>  - Move the growsup/down helper functions to <linux/mm.h>, since the
> /proc code really wants to use them too. That means that the
> "vma_stack_continue()" function (which now got split up into two
> cases, for the up/down cases) is now entirely just an internal helper
> function - nobody else uses it, and the real interface are the
> "stack_guard_page_xyz()"  functions. Renamed to be simpler.
> 
>  - changed that naming of those stack_guard_page functions to use
> _start and _end instead of growsup/growsdown, since it actually takes
> the start or the end of the page as the argument (to match the
> semantics of the afore-mentioned helpers)
> 
>  - and finally, make /proc/<pid>/maps use these helpers for both the
> up/down case, so now /proc/self/maps should work well for the growsup
> case too.
> 
> Hmm?
> 
> The only oddish case is IA64 that actually has a stack that grows
> *both* up and down. That means that I could make up a stack mapping
> that has a single virtual page in it, that is both the start *and* the
> end page. Now /proc/self/maps would actually show such a mapping with
> "negative" size. That's interesting.
> 
> It would be easy enough to have a "if (end < start) end = start" there
> for that case, but maybe it's actually interesting information.
> 
> Regardless, I'd like to hear whether this patch really does work on
> PA-RISC and especially IA64. I think those are the only cases that
> have a GROWSUP stack. And the IA64 case that supports both is the most
> interesting, everybody else does just one or the other.
> 
>                     Linus

I will test it after a week, now I'm traveling away.

Mikulas
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From: Linus Torvalds <torvalds@linux-foundation.org>
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Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
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Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>,
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On Mon, May 9, 2011 at 3:19 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
>
> So I can test the patch, if you tell me how. =A0I don't use lvm2, so it
> would have to be a simple test case.

Something like the attached. Run it as root (it needs root just for
the mlockall), and see whether the stack it shows changes.

With current kernels, I think the stack expands by one page during the
mlockall (for STACK_GROWSUP), with the patch it shouldn't.

                   Linus

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From - Thu Nov 08 21:07:15 2018
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Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
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Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>,
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On Mon, May 09, 2011 at 01:43:59PM +0200, Zdenek Kabelac wrote:
> > Why it doesn't use mlockall()? Because glibc maps all locales to the 
> > process. Glibc packs all locales to a 100MB file and maps that file to 
> > every process. Even if the process uses just one locale, glibc maps all.
> > 
> > So, when LVM used mlockall, it consumed >100MB memory and it caused 
> > out-of-memory problems in system installers.
> > 
> > So, alternate way of locking was added to LVM --- read all maps and lock 
> > them, except for the glibc locale file.
> > 
> > The real fix would be to fix glibc not to map 100MB to every process.
> 
> I should add here probably few words.
> 
> Glibc knows few more ways around - so it could work only with one locale file
> per language, or even without using mmap and allocating them in memory.
> Depends on the distribution usually - Fedora decided to combine all locales
> into one huge file (>100MB) - Ubuntu/Debian mmaps each locales individually
> (usually ~MB)

Sounds to me like glibc should introduce an mlockmost() call that does all
the work for you ...

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
	Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>,
	Fenghua Yu <fenghua.yu@intel.com>,
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On Mon, May 9, 2011 at 3:31 PM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
> With current kernels, I think the stack expands by one page during the
> mlockall (for STACK_GROWSUP), with the patch it shouldn't.

Tried this on ia64 (with a mod because the upward growing stack isn't
blessed with
the [stack] annotation, only the downward growing stack gets that honour).

ia64 builds, boots, and processes can still grow stacks (both of them).  The
patched kernel doesn't change the size of the upwardly growing stack across
the mlockall().

-Tony

P.S. while we could start both stacks on the same page and have the grow
away from the start point, ia64 actually starts them out a fair distance apart
and lets them run into each other (if you have enough memory to let them
grow that far, and if ulimit -s doesn't stop them earlier)
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Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
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On Mon, May 9, 2011 at 3:45 PM, Matthew Wilcox <matthew@wil.cx> wrote:
>
> Sounds to me like glibc should introduce an mlockmost() call that does all
> the work for you ...

That sounds like the worst of all worlds. Nobody will use it, now
there's two places to break, and how do you describe what you don't
want mlocked?

I dunno. There are so few applications that use mlock at *all* that I
wonder if it's even worth worrying about. And this one case we've
hopefully now fixed anyway.

But if people really want to fix mlockall(), I'd suggest some way of
just marking certain mappings as "sparse mappings", and then we can
just teach mlockall to not lock them. And then glibc could just mark
its locale archive that way - and maybe others would mark other
mappings.

We could still make such a "sparse mapping" act as locked for the
actual pages that are mapped into it - so it would have some kind of
real semantics. You could do a "mlockall(..)" on the process, and then
touch the sparse pages you know you want, and they'd be guaranteed to
be mapped after that.

We might even have a "mlockall(MCL_SPARSE)" flag that does that for
everything - basically guarantee that "whatever is mapped in now will
remain mapped in, but I won't bother paging it in just because you ask
me to do a mlockall".

So there are sane semantics for the concept, and it would be easy to
do in the kernel. Whether it's worth doing, I dunno.

                    Linus
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On Mon, May 9, 2011 at 3:53 PM, Tony Luck <tony.luck@gmail.com> wrote:
>
> P.S. while we could start both stacks on the same page and have the grow
> away from the start point, ia64 actually starts them out a fair distance apart
> and lets them run into each other (if you have enough memory to let them
> grow that far, and if ulimit -s doesn't stop them earlier)

Ahh, so you never actually have one single mapping that has both flags set?

In that case, I won't even worry about it.

One thing I did want to verify: did the mlockall() actually change the
stack size without that patch? Just to double-check that the patch
actually did change semantics visibly.

                 Linus
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On Mon, May 9, 2011 at 3:58 PM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
> Ahh, so you never actually have one single mapping that has both flags set?
>
> In that case, I won't even worry about it.

Definitely not for normal processes - I'm not sure how both stacks are
set up for threads.

> One thing I did want to verify: did the mlockall() actually change the
> stack size without that patch? Just to double-check that the patch
> actually did change semantics visibly.

On an unpatched system I see this (lots more than one page of growth -
pages are 64K on this config):
6007fffffff50000-6007fffffff70000 rw-p 00000000 00:00 0
6007fffffff50000-6008000000750000 rw-p 00000000 00:00 0

On a patched system I see (this one has 16K pages - no growth)
600007ffff9d0000-600007ffff9d4000 rw-p 00000000 00:00 0
600007ffff9d0000-600007ffff9d4000 rw-p 00000000 00:00 0

-Tony
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On Mon, May 9, 2011 at 4:08 PM, Tony Luck <tony.luck@gmail.com> wrote:
>
> Definitely not for normal processes - I'm not sure how both stacks are
> set up for threads.

We don't actually allow user space to set the growsup/growsdown bits
any more (we have PROT_GROWSUP and PROT_GROWSDOWN, but that is to
allow mprotect to not give an exact range, but say "apply this to the
end of a growsup/growsdown segment").

So the only thing that has those bits are things that the kernel sets
explicitly at exec time. So if ia64 doesn't set it, we're all good.

>> One thing I did want to verify: did the mlockall() actually change the
>> stack size without that patch? Just to double-check that the patch
>> actually did change semantics visibly.
>
> On an unpatched system I see this (lots more than one page of growth -
> pages are 64K on this config):
> 6007fffffff50000-6007fffffff70000 rw-p 00000000 00:00 0
> 6007fffffff50000-6008000000750000 rw-p 00000000 00:00 0
>
> On a patched system I see (this one has 16K pages - no growth)
> 600007ffff9d0000-600007ffff9d4000 rw-p 00000000 00:00 0
> 600007ffff9d0000-600007ffff9d4000 rw-p 00000000 00:00 0

Ok, I'll consider it tested. I'll commit it with Mikulas as author,
but note that I edited it so he won't get the blame if there's some
problem.

                             Linus

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From: Linus Torvalds <torvalds@linux-foundation.org>
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Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
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To: Tony Luck <tony.luck@gmail.com>
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On Mon, May 9, 2011 at 4:17 PM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> Ok, I'll consider it tested. I'll commit it with Mikulas as author,
> but note that I edited it so he won't get the blame if there's some
> problem.

Oh, and I marked it for stable too, although I don't know if any
distribution really cares about parisc or ia64. And I'm not sure that
ia64 even saw the lvm2 failure case - I'd have expected to hear about
it if it actually happens there.

                       Linus
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Subject: [PATCH] vm: fix vm_pgoff wrap in upward expansion
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/3716>

Commit a626ca6a6564 ("vm: fix vm_pgoff wrap in stack expansion") fixed
the case of an expanding mapping causing vm_pgoff wrapping when you had
downward stack expansion.  But there was another case where IA64 and
PA-RISC expand mappings: upward expansion.

This fixes that case too.

Signed-off-by: Hugh Dickins <hughd@google.com.>
Cc: stable@kernel.org
---
On April 12th you asked "Guys, can you think of any other thing
that might expand a mapping?": this is the only one I thought of.

 mm/mmap.c |   11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

--- 2.6.39-rc6/mm/mmap.c	2011-05-04 12:10:31.477543104 -0700
+++ linux/mm/mmap.c	2011-05-09 17:16:34.251725877 -0700
@@ -1767,10 +1767,13 @@ int expand_upwards(struct vm_area_struct
 		size = address - vma->vm_start;
 		grow = (address - vma->vm_end) >> PAGE_SHIFT;
 
-		error = acct_stack_growth(vma, size, grow);
-		if (!error) {
-			vma->vm_end = address;
-			perf_event_mmap(vma);
+		error = -ENOMEM;
+		if (vma->vm_pgoff + (size >> PAGE_SHIFT) >= vma->vm_pgoff) {
+			error = acct_stack_growth(vma, size, grow);
+			if (!error) {
+				vma->vm_end = address;
+				perf_event_mmap(vma);
+			}
 		}
 	}
 	vma_unlock_anon_vma(vma);
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ia64
Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
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On Mon, 2011-05-09 at 16:25 -0700, Linus Torvalds wrote:
> On Mon, May 9, 2011 at 4:17 PM, Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
> >
> > Ok, I'll consider it tested. I'll commit it with Mikulas as author,
> > but note that I edited it so he won't get the blame if there's some
> > problem.
> 
> Oh, and I marked it for stable too, although I don't know if any
> distribution really cares about parisc or ia64. And I'm not sure that
> ia64 even saw the lvm2 failure case - I'd have expected to hear about
> it if it actually happens there.

Well, it's a done deal, but here's the proof on parisc too:

Before:

c0266000-c0289000 rwxp 00000000 00:00 0                                  [stack]
c0266000-c0a66000 rwxp 00000000 00:00 0                                  [stack]

After:

bffee000-c0010000 rwxp 00000000 00:00 0                                  [stack]
bffee000-c0010000 rwxp 00000000 00:00 0                                  [stack]

James


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From - Thu Nov 08 21:07:15 2018
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From: Alasdair G Kergon <agk@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
Date: Tue, 10 May 2011 23:57:00 +0100
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On Mon, May 09, 2011 at 03:56:11PM -0700, Linus Torvalds wrote:
> So there are sane semantics for the concept, and it would be easy to
> do in the kernel. Whether it's worth doing, I dunno.
 
At this point we have a workaround that seems to work for us.  I find it
ugly and it has needed some tweaking already but we can cope.

If others find similar problems to ours and start replicating the logic
we're using, then that would be the time to give serious thought to a
clean 'sparse' extension.  (Maybe marking individual mappings as MAP_SPARSE
and adding a MCL_NO_SPARSE option to ignore them sounds most promising to me.)

(What other software packages make use of mlockall() and under what
circumstances?)

Alasdair

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From: Stephen Rothwell <sfr@canb.auug.org.au>
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Subject: Re: Please include the namespace file-descriptors tree in
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Hi Eric,

On Tue, 10 May 2011 15:44:51 -0700 ebiederm@xmission.com (Eric W. Biederman=
) wrote:
>
> These changes have just been through review and I expect
> to send Linus a pull request when the merge window opens.
>=20
> This tree holds changes that significantly simply the userspace
> interface to working with namespaces.
>=20
> I had to pull some of net-next and the parisc tress to be able to
> avoid conflicts with system call numbers.  Hopefully that is not
> a problem.

That should be fine as Dave's tree never rebases and the parisc tree
looks pretty stable.  Just keep an eye on those trees, just in case.

> git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/linux-2.6-nsfd.git

This tree will be added from today.

Thanks for adding your subsystem tree as a participant of linux-next.  As
you may know, this is not a judgment of your code.  The purpose of
linux-next is for integration testing and to lower the impact of
conflicts between subsystems in the next merge window.=20

You will need to ensure that the patches/commits in your tree/series have
been:
     * submitted under GPL v2 (or later) and include the Contributor's
	Signed-off-by,
     * posted to the relevant mailing list,
     * reviewed by you (or another maintainer of your subsystem tree),
     * successfully unit tested, and=20
     * destined for the current or next Linux merge window.

Basically, this should be just what you would send to Linus (or ask him
to fetch).  It is allowed to be rebased if you deem it necessary.

--=20
Cheers,
Stephen Rothwell=20
sfr@canb.auug.org.au

Legal Stuff:
By participating in linux-next, your subsystem tree contributions are
public and will be included in the linux-next trees.  You may be sent
e-mail messages indicating errors or other issues when the
patches/commits from your subsystem tree are merged and tested in
linux-next.  These messages may also be cross-posted to the linux-next
mailing list, the linux-kernel mailing list, etc.  The linux-next tree
project and IBM (my employer) make no warranties regarding the linux-next
project, the testing procedures, the results, the e-mails, etc.  If you
don't agree to these ground rules, let me know and I'll remove your tree
from participation in linux-next.

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Stephen Rothwell <sfr@canb.auug.org.au> writes:

> Hi Eric,
>
> On Tue, 10 May 2011 15:44:51 -0700 ebiederm@xmission.com (Eric W. Biederman) wrote:
>>
>> These changes have just been through review and I expect
>> to send Linus a pull request when the merge window opens.
>> 
>> This tree holds changes that significantly simply the userspace
>> interface to working with namespaces.
>> 
>> I had to pull some of net-next and the parisc tress to be able to
>> avoid conflicts with system call numbers.  Hopefully that is not
>> a problem.
>
> That should be fine as Dave's tree never rebases and the parisc tree
> looks pretty stable.  Just keep an eye on those trees, just in case.

Good point.  I have talked to James and Dave so they know I pulled their
trees.  My lazy side says I expect you will get a merge conflict with my
tree in linux-next if someone rebases.  But I will definitely keep my
eyes out and at the very least double check that all is well before I
send Linus a pull request.  

Eric
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From: Milan Broz <mbroz@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
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To: Alasdair G Kergon <agk@redhat.com>,
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On 05/11/2011 12:57 AM, Alasdair G Kergon wrote:
> (What other software packages make use of mlockall() and under what
> circumstances?)

Another one is cryptsetup for commands which manipulate with keys
in memory.
(Users of libcryptetup library are not forced to lock memory, it is optional
call. But cryptsetup itself as libcryptsetup library user always locks memory.)

And I am not happy with mlockall() as well but the lvm2 workaround
is quite complicated.

Basically it wants to lock memory with explicitly allocated keys
(this can be rewritten to use specific locked page though) but it
also need to lock various libdevmapper buffers when issuing dmcrypt
cfg ioctl (mapping table and messages contains key). So that's why
mlockall(MCL_CURRENT|MCL_FUTURE) was the simplest way (and no problems
reported yet).
(No that it is perfect but better than nothing... Of course
more important is to wipe memory with keys after use.)

Milan
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From: Linus Torvalds <torvalds@linux-foundation.org>
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Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
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To: Milan Broz <mbroz@redhat.com>
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On Wed, May 11, 2011 at 1:42 AM, Milan Broz <mbroz@redhat.com> wrote:
>
> Another one is cryptsetup [..]

Quite frankly, all security-related uses should always be happy about
a "MCL_SPARSE" model, since there is no point in ever bringing in
pages that haven't been used. The whole (and only) point of
mlock[all]() for them is the "avoid to push to disk" issue.

I do wonder if we really should ever do the page-in at all. We might
simply be better off always just saying "we'll lock pages you've
touched, that's it".

                       Linus
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From - Thu Nov 08 21:07:16 2018
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From: Zdenek Kabelac <zkabelac@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
Date: Thu, 12 May 2011 11:06:03 +0200
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To: Linus Torvalds <torvalds@linux-foundation.org>
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Dne 12.5.2011 04:12, Linus Torvalds napsal(a):
> On Wed, May 11, 2011 at 1:42 AM, Milan Broz <mbroz@redhat.com> wrote:
>>
>> Another one is cryptsetup [..]
> 
> Quite frankly, all security-related uses should always be happy about
> a "MCL_SPARSE" model, since there is no point in ever bringing in
> pages that haven't been used. The whole (and only) point of
> mlock[all]() for them is the "avoid to push to disk" issue.
> 
> I do wonder if we really should ever do the page-in at all. We might
> simply be better off always just saying "we'll lock pages you've
> touched, that's it".
> 


For LVM we need to ensure the code which might ever be executed during  disk
suspend state must be paged and locked in - thus we would need MCL_SPARSE only
on several selected 'unneeded' libraries - as we are obviously not really able
to select which part of glibc might be needed during all code path (though I
guess we may find some limits).  But if we are sure that some libraries and
locale files will never be used during suspend state - we do not care about
those pages at all.

So it's not like we would always need only MCL_SPARSE all the time - we would
probably need to have some control to switch i.e.  glibc into MCL_ALL.

Zdenek
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From - Thu Nov 08 21:07:16 2018
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From: Stephen Boyd <sboyd@codeaurora.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 9/9] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
Date: Thu, 12 May 2011 16:50:12 -0700
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Cc: linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	x86@kernel.org, linux-parisc@vger.kernel.org,
	linux-s390@vger.kernel.org,
	Arjan van de Ven <arjan@linux.intel.com>,
	Helge Deller <deller@gmx.de>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Chris Metcalf <cmetcalf@tilera.com>
To: Andrew Morton <akpm@linux-foundation.org>
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The help text for this config is duplicated across the x86,
parisc, and s390 Kconfig.debug files. Arnd Bergman noted that the
help text was slightly misleading and should be fixed to state
that enabling this option isn't a problem when using pre 4.4 gcc.

To simplify the rewording, consolidate the text into
lib/Kconfig.debug and modify it there to be more explicit about
when you should say N to this config.

Also, make the text a bit more generic by stating that this
option enables compile time checks so we can cover architectures
which emit warnings vs. ones which emit errors. The details of
how an architecture decided to implement the checks isn't as
important as the concept of compile time checking of
copy_from_user() calls.

While we're doing this, remove all the copy_from_user_overflow()
code that's duplicated many times and place it into lib/ so that
any architecture supporting this option can get the function for
free.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: x86@kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
 arch/parisc/Kconfig             |    1 +
 arch/parisc/Kconfig.debug       |   14 --------------
 arch/s390/Kconfig               |    1 +
 arch/s390/Kconfig.debug         |   14 --------------
 arch/s390/lib/Makefile          |    1 -
 arch/s390/lib/usercopy.c        |    8 --------
 arch/sparc/lib/Makefile         |    1 -
 arch/sparc/lib/usercopy.c       |    8 --------
 arch/tile/Kconfig               |    8 +-------
 arch/tile/include/asm/uaccess.h |    7 ++++++-
 arch/tile/lib/uaccess.c         |    8 --------
 arch/x86/Kconfig                |    1 +
 arch/x86/Kconfig.debug          |   14 --------------
 arch/x86/lib/usercopy_32.c      |    6 ------
 arch/x86/lib/usercopy_64.c      |    6 ------
 lib/Kconfig.debug               |   18 ++++++++++++++++++
 lib/Makefile                    |    1 +
 lib/usercopy.c                  |    8 ++++++++
 18 files changed, 37 insertions(+), 88 deletions(-)
 delete mode 100644 arch/s390/lib/usercopy.c
 delete mode 100644 arch/sparc/lib/usercopy.c
 create mode 100644 lib/usercopy.c

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 69ff049..4473f10 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -15,6 +15,7 @@ config PARISC
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_PROBE
 	select IRQ_PER_CPU
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 7305ac8..bc989e5 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -12,18 +12,4 @@ config DEBUG_RODATA
          portion of the kernel code won't be covered by a TLB anymore.
          If in doubt, say "N".
 
-config DEBUG_STRICT_USER_COPY_CHECKS
-	bool "Strict copy size checks"
-	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
-	---help---
-	  Enabling this option turns a certain set of sanity checks for user
-	  copy operations into compile time failures.
-
-	  The copy_from_user() etc checks are there to help test if there
-	  are sufficient security checks on the length argument of
-	  the copy operation, by having gcc prove that the argument is
-	  within bounds.
-
-	  If unsure, or if you run an older (pre 4.4) gcc, say N.
-
 endmenu
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 2508a6f..196cdc9 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -116,6 +116,7 @@ config S390
 	select ARCH_INLINE_WRITE_UNLOCK_BH
 	select ARCH_INLINE_WRITE_UNLOCK_IRQ
 	select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 
 config SCHED_OMIT_FRAME_POINTER
 	def_bool y
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index d76cef3..aa1796c 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -17,20 +17,6 @@ config STRICT_DEVMEM
 
 	  If you are unsure, say Y.
 
-config DEBUG_STRICT_USER_COPY_CHECKS
-	def_bool n
-	prompt "Strict user copy size checks"
-	---help---
-	  Enabling this option turns a certain set of sanity checks for user
-	  copy operations into compile time warnings.
-
-	  The copy_from_user() etc checks are there to help test if there
-	  are sufficient security checks on the length argument of
-	  the copy operation, by having gcc prove that the argument is
-	  within bounds.
-
-	  If unsure, or if you run an older (pre 4.4) gcc, say N.
-
 config DEBUG_SET_MODULE_RONX
 	def_bool y
 	depends on MODULES
diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
index 761ab8b..97975ec 100644
--- a/arch/s390/lib/Makefile
+++ b/arch/s390/lib/Makefile
@@ -3,7 +3,6 @@
 #
 
 lib-y += delay.o string.o uaccess_std.o uaccess_pt.o
-obj-y += usercopy.o
 obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o
 lib-$(CONFIG_64BIT) += uaccess_mvcos.o
 lib-$(CONFIG_SMP) += spinlock.o
diff --git a/arch/s390/lib/usercopy.c b/arch/s390/lib/usercopy.c
deleted file mode 100644
index 14b363f..0000000
--- a/arch/s390/lib/usercopy.c
+++ /dev/null
@@ -1,8 +0,0 @@
-#include <linux/module.h>
-#include <linux/bug.h>
-
-void copy_from_user_overflow(void)
-{
-	WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index 846d1c4..892e0a9 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -44,4 +44,3 @@ obj-y                 += iomap.o
 obj-$(CONFIG_SPARC32) += atomic32.o
 obj-y                 += ksyms.o
 obj-$(CONFIG_SPARC64) += PeeCeeI.o
-obj-y                 += usercopy.o
diff --git a/arch/sparc/lib/usercopy.c b/arch/sparc/lib/usercopy.c
deleted file mode 100644
index 14b363f..0000000
--- a/arch/sparc/lib/usercopy.c
+++ /dev/null
@@ -1,8 +0,0 @@
-#include <linux/module.h>
-#include <linux/bug.h>
-
-void copy_from_user_overflow(void)
-{
-	WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index e32b0c2..8961f43 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -12,6 +12,7 @@ config TILE
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PENDING_IRQ if SMP
 	select GENERIC_IRQ_SHOW
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 
 # FIXME: investigate whether we need/want these options.
 #	select HAVE_IOREMAP_PROT
@@ -96,13 +97,6 @@ config STRICT_DEVMEM
 config SMP
 	def_bool y
 
-# Allow checking for compile-time determined overflow errors in
-# copy_from_user().  There are still unprovable places in the
-# generic code as of 2.6.34, so this option is not really compatible
-# with -Werror, which is more useful in general.
-config DEBUG_COPY_FROM_USER
-	def_bool n
-
 config HVC_TILE
 	select HVC_DRIVER
 	def_bool y
diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
index ef34d2c..9a540be 100644
--- a/arch/tile/include/asm/uaccess.h
+++ b/arch/tile/include/asm/uaccess.h
@@ -353,7 +353,12 @@ _copy_from_user(void *to, const void __user *from, unsigned long n)
 	return n;
 }
 
-#ifdef CONFIG_DEBUG_COPY_FROM_USER
+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+/*
+ * There are still unprovable places in the generic code as of 2.6.34, so this
+ * option is not really compatible with -Werror, which is more useful in
+ * general.
+ */
 extern void copy_from_user_overflow(void)
 	__compiletime_warning("copy_from_user() size is not provably correct");
 
diff --git a/arch/tile/lib/uaccess.c b/arch/tile/lib/uaccess.c
index f8d398c..030abe3 100644
--- a/arch/tile/lib/uaccess.c
+++ b/arch/tile/lib/uaccess.c
@@ -22,11 +22,3 @@ int __range_ok(unsigned long addr, unsigned long size)
 		 is_arch_mappable_range(addr, size));
 }
 EXPORT_SYMBOL(__range_ok);
-
-#ifdef CONFIG_DEBUG_COPY_FROM_USER
-void copy_from_user_overflow(void)
-{
-       WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
-#endif
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index cc6c53a..be50c8e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -72,6 +72,7 @@ config X86
 	select IRQ_FORCED_THREADING
 	select USE_GENERIC_SMP_HELPERS if SMP
 	select ARCH_NO_SYSDEV_OPS
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 
 config INSTRUCTION_DECODER
 	def_bool (KPROBES || PERF_EVENTS)
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 615e188..e3c58f3 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -290,18 +290,4 @@ config OPTIMIZE_INLINING
 
 	  If unsure, say N.
 
-config DEBUG_STRICT_USER_COPY_CHECKS
-	bool "Strict copy size checks"
-	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
-	---help---
-	  Enabling this option turns a certain set of sanity checks for user
-	  copy operations into compile time failures.
-
-	  The copy_from_user() etc checks are there to help test if there
-	  are sufficient security checks on the length argument of
-	  the copy operation, by having gcc prove that the argument is
-	  within bounds.
-
-	  If unsure, or if you run an older (pre 4.4) gcc, say N.
-
 endmenu
diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
index e218d5d..8498684 100644
--- a/arch/x86/lib/usercopy_32.c
+++ b/arch/x86/lib/usercopy_32.c
@@ -883,9 +883,3 @@ _copy_from_user(void *to, const void __user *from, unsigned long n)
 	return n;
 }
 EXPORT_SYMBOL(_copy_from_user);
-
-void copy_from_user_overflow(void)
-{
-	WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
index d7a5d9a..b7c2849 100644
--- a/arch/x86/lib/usercopy_64.c
+++ b/arch/x86/lib/usercopy_64.c
@@ -181,9 +181,3 @@ copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
 			break;
 	return len;
 }
-
-void copy_from_user_overflow(void)
-{
-	WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index c768bcd..3703778 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1096,6 +1096,24 @@ config SYSCTL_SYSCALL_CHECK
 	  to properly maintain and use. This enables checks that help
 	  you to keep things correct.
 
+config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	bool
+
+config DEBUG_STRICT_USER_COPY_CHECKS
+	bool "Strict user copy size checks"
+	depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
+	help
+	  Enabling this option turns a certain set of sanity checks for user
+	  copy operations into compile time failures.
+
+	  The copy_from_user() etc checks are there to help test if there
+	  are sufficient security checks on the length argument of
+	  the copy operation, by having gcc prove that the argument is
+	  within bounds.
+
+	  If unsure, say N.
+
 source mm/Kconfig.debug
 source kernel/trace/Kconfig
 
diff --git a/lib/Makefile b/lib/Makefile
index ef0f285..4c1e445 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -14,6 +14,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
 	 proportions.o prio_heap.o ratelimit.o show_mem.o \
 	 is_single_threaded.o plist.o decompress.o
 
+lib-$(CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS) += usercopy.o
 lib-$(CONFIG_MMU) += ioremap.o
 lib-$(CONFIG_SMP) += cpumask.o
 
diff --git a/lib/usercopy.c b/lib/usercopy.c
new file mode 100644
index 0000000..14b363f
--- /dev/null
+++ b/lib/usercopy.c
@@ -0,0 +1,8 @@
+#include <linux/module.h>
+#include <linux/bug.h>
+
+void copy_from_user_overflow(void)
+{
+	WARN(1, "Buffer overflow detected!\n");
+}
+EXPORT_SYMBOL(copy_from_user_overflow);
-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

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From - Thu Nov 08 21:07:16 2018
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From: Chris Metcalf <cmetcalf@tilera.com>
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Subject: Re: [PATCH 9/9] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
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On 5/12/2011 7:50 PM, Stephen Boyd wrote:
> The help text for this config is duplicated across the x86,
> parisc, and s390 Kconfig.debug files. Arnd Bergman noted that the
> help text was slightly misleading and should be fixed to state
> that enabling this option isn't a problem when using pre 4.4 gcc.
>
> To simplify the rewording, consolidate the text into
> lib/Kconfig.debug and modify it there to be more explicit about
> when you should say N to this config.
>
> Also, make the text a bit more generic by stating that this
> option enables compile time checks so we can cover architectures
> which emit warnings vs. ones which emit errors. The details of
> how an architecture decided to implement the checks isn't as
> important as the concept of compile time checking of
> copy_from_user() calls.
>
> While we're doing this, remove all the copy_from_user_overflow()
> code that's duplicated many times and place it into lib/ so that
> any architecture supporting this option can get the function for
> free.
>
> ---
>  arch/tile/Kconfig               |    8 +-------
>  arch/tile/include/asm/uaccess.h |    7 ++++++-
>  arch/tile/lib/uaccess.c         |    8 --------

Acked-by: Chris Metcalf <cmetcalf@tilera.com>

-- 
Chris Metcalf, Tilera Corp.
http://www.tilera.com


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Subject: Re: [PATCH 9/9] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
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* Stephen Boyd <sboyd@codeaurora.org> wrote:

> The help text for this config is duplicated across the x86,
> parisc, and s390 Kconfig.debug files. Arnd Bergman noted that the
> help text was slightly misleading and should be fixed to state
> that enabling this option isn't a problem when using pre 4.4 gcc.
> 
> To simplify the rewording, consolidate the text into
> lib/Kconfig.debug and modify it there to be more explicit about
> when you should say N to this config.
> 
> Also, make the text a bit more generic by stating that this
> option enables compile time checks so we can cover architectures
> which emit warnings vs. ones which emit errors. The details of
> how an architecture decided to implement the checks isn't as
> important as the concept of compile time checking of
> copy_from_user() calls.
> 
> While we're doing this, remove all the copy_from_user_overflow()
> code that's duplicated many times and place it into lib/ so that
> any architecture supporting this option can get the function for
> free.
> 
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: x86@kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-s390@vger.kernel.org
> Cc: Arjan van de Ven <arjan@linux.intel.com>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
> Cc: Chris Metcalf <cmetcalf@tilera.com>
> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
> ---
>  arch/parisc/Kconfig             |    1 +
>  arch/parisc/Kconfig.debug       |   14 --------------
>  arch/s390/Kconfig               |    1 +
>  arch/s390/Kconfig.debug         |   14 --------------
>  arch/s390/lib/Makefile          |    1 -
>  arch/s390/lib/usercopy.c        |    8 --------
>  arch/sparc/lib/Makefile         |    1 -
>  arch/sparc/lib/usercopy.c       |    8 --------
>  arch/tile/Kconfig               |    8 +-------
>  arch/tile/include/asm/uaccess.h |    7 ++++++-
>  arch/tile/lib/uaccess.c         |    8 --------
>  arch/x86/Kconfig                |    1 +
>  arch/x86/Kconfig.debug          |   14 --------------
>  arch/x86/lib/usercopy_32.c      |    6 ------
>  arch/x86/lib/usercopy_64.c      |    6 ------
>  lib/Kconfig.debug               |   18 ++++++++++++++++++
>  lib/Makefile                    |    1 +
>  lib/usercopy.c                  |    8 ++++++++
>  18 files changed, 37 insertions(+), 88 deletions(-)
>  delete mode 100644 arch/s390/lib/usercopy.c
>  delete mode 100644 arch/sparc/lib/usercopy.c
>  create mode 100644 lib/usercopy.c

Very nice!

Acked-by: Ingo Molnar <mingo@elte.hu>

	Ingo
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ide,gmane.linux.ports.parisc
Subject: Re: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on
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On Sun, 2011-04-24 at 14:28 -0500, James Bottomley wrote:
> currently libata-sff is completely ignoring the enabled/disabled status
> of the interfaces.  This is a real problem on parisc because if you
> touch a non responding memory area (i.e. a disabled interface) you crash
> the box.
> 
> Fix by checking the CNTRL bits to see if the port is enabled before
> trying to poke it.

Ping on this.

Since 1/2 is an essential fix to prevent a boot panic on parisc, I can
just take them through the parisc tree.

James


> James
> 
> ---
> 
> James Bottomley (2):
>   pata_cm64x: fix boot crash on parisc
>   libata-sff: prevent irq descriptions for dummy ports
> 
>  drivers/ata/libata-sff.c  |    9 +++++++--
>  drivers/ata/pata_cmd64x.c |   42 ++++++++++++++++++++++++++++++++++++++----
>  include/linux/pci_ids.h   |    2 ++
>  3 files changed, 47 insertions(+), 6 deletions(-)
> 


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From - Thu Nov 08 21:07:16 2018
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Subject: Re: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on boot
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On 05/13/2011 01:01 PM, James Bottomley wrote:
> On Sun, 2011-04-24 at 14:28 -0500, James Bottomley wrote:
>> currently libata-sff is completely ignoring the enabled/disabled status
>> of the interfaces.  This is a real problem on parisc because if you
>> touch a non responding memory area (i.e. a disabled interface) you crash
>> the box.
>>
>> Fix by checking the CNTRL bits to see if the port is enabled before
>> trying to poke it.
>
> Ping on this.
>
> Since 1/2 is an essential fix to prevent a boot panic on parisc, I can
> just take them through the parisc tree.

It's in libata-dev.git#upstream and #NEXT (linux-next) at present.

	Jeff



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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 9/9] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
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To: Stephen Boyd <sboyd@codeaurora.org>
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On Friday 13 May 2011, Stephen Boyd wrote:
> The help text for this config is duplicated across the x86,
> parisc, and s390 Kconfig.debug files. Arnd Bergman noted that the
> help text was slightly misleading and should be fixed to state
> that enabling this option isn't a problem when using pre 4.4 gcc.
> 
> To simplify the rewording, consolidate the text into
> lib/Kconfig.debug and modify it there to be more explicit about
> when you should say N to this config.
> 
> Also, make the text a bit more generic by stating that this
> option enables compile time checks so we can cover architectures
> which emit warnings vs. ones which emit errors. The details of
> how an architecture decided to implement the checks isn't as
> important as the concept of compile time checking of
> copy_from_user() calls.
> 
> While we're doing this, remove all the copy_from_user_overflow()
> code that's duplicated many times and place it into lib/ so that
> any architecture supporting this option can get the function for
> free.
> 
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: x86@kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-s390@vger.kernel.org
> Cc: Arjan van de Ven <arjan@linux.intel.com>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
> Cc: Chris Metcalf <cmetcalf@tilera.com>
> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

Thanks for following up on this

Reviewed-by: Arnd Bergmann <arnd@arndb.de>

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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: Testing Linux 2.6.39-rc's on rp3440
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On Sat, 14 May 2011, John David Anglin wrote:

> -----------------  Processor 2 HPMC Information - PDC Version: 46.34  ------ 
> 
> Timestamp =   Sat May  14 14:56:22 GMT 2011    (20:11:05:14:14:56:22)
> 
> HPMC Chassis Codes
> 
>        Chassis Code        Extension
>        ------------        ---------
>        0xe800035c00e00000 0x0000000000000000
>        0x57000f7300e00000 0x8040400000000000
>        0x5600100b00e00000 0x0000000000000194
>        0x5600106400e00000 0xfffffff0f0438e70
> 
...
> Control Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11  0000000000004c26  0000000000000000  00000000000000c0  000000000000003f
> 12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
> 16-19  000001959bf4e395  0000000000000000  0000000000000000  0000000000000000
> 20-23  0000000000000000  0000000000000000  000000ff0804f900  8000000000000000
> 24-27  0000000000577000  000000003f82a000  fffffeffffffffff  00000000400016c0
> 28-31  0000000040002540  ffffffdfffffffff  000000007dfec000  ffffffdfffffffff

If I understand correctly, CR 22 is the interruption processor status
register.  I and Q are off, so a branch to 0 must have occurred in a ISR.

> ------------  I/O Module Error Log Information  ------------
> 
> IO Subsystem Log Entries
> 
> Found 7 IOC errors
> Found 7 PCI Bus errors
> ------------------------------------------------

It appears the format of these messages uses the structures described in
the Intel Itanium Processor Family System Abstraction Layer Specification:
http://download.intel.com/design/itanium/specupdt/245359.pdf

Unfortunately, the bus errors seem to be OEM specific...

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH] Don't mlock guardpage if the stack is growing up
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Tue, 10 May 2011, Mikulas Patocka wrote:

> On Mon, 9 May 2011, Linus Torvalds wrote:
> 
> > On Mon, May 9, 2011 at 8:57 AM, Linus Torvalds
> > <torvalds@linux-foundation.org> wrote:
> > >
> > > Hmm. One thing that strikes me is this problem also implies that the
> > > /proc/self/maps file is wrong for the GROWSUP case, isn't it?
> > >
> > > So I think we should not just apply your lock fix, but then *also*
> > > apply something like this:
> > 
> > Actually, I think we might be better off with something like this.
> > 
> > It makes a few more changes:
> > 
> >  - move the stack guard page checking in __get_user_pages() into the
> > rare case (ie we didn't find a page), since that's the only case we
> > care about (the thing about the guard page is that don't want to call
> > "handle_mm_fault()"). As a result, it's off any path where we can
> > possibly care about performance, so we might as well have a nice
> > helper function for both the grow-up and grow-down cases, instead of
> > trying to be clever and only look at the grow-down case for the first
> > page in the vma like you did in your patch.
> > 
> >    End result: simpler, more straightforward code.
> > 
> >  - Move the growsup/down helper functions to <linux/mm.h>, since the
> > /proc code really wants to use them too. That means that the
> > "vma_stack_continue()" function (which now got split up into two
> > cases, for the up/down cases) is now entirely just an internal helper
> > function - nobody else uses it, and the real interface are the
> > "stack_guard_page_xyz()"  functions. Renamed to be simpler.
> > 
> >  - changed that naming of those stack_guard_page functions to use
> > _start and _end instead of growsup/growsdown, since it actually takes
> > the start or the end of the page as the argument (to match the
> > semantics of the afore-mentioned helpers)
> > 
> >  - and finally, make /proc/<pid>/maps use these helpers for both the
> > up/down case, so now /proc/self/maps should work well for the growsup
> > case too.
> > 
> > Hmm?
> > 
> > The only oddish case is IA64 that actually has a stack that grows
> > *both* up and down. That means that I could make up a stack mapping
> > that has a single virtual page in it, that is both the start *and* the
> > end page. Now /proc/self/maps would actually show such a mapping with
> > "negative" size. That's interesting.
> > 
> > It would be easy enough to have a "if (end < start) end = start" there
> > for that case, but maybe it's actually interesting information.
> > 
> > Regardless, I'd like to hear whether this patch really does work on
> > PA-RISC and especially IA64. I think those are the only cases that
> > have a GROWSUP stack. And the IA64 case that supports both is the most
> > interesting, everybody else does just one or the other.
> > 
> >                     Linus
> 
> I will test it after a week, now I'm traveling away.
> 
> Mikulas

Hi

I tested 2.6.39-rc7 in on PA-RISC and confirm that it works.

Mikulas
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From - Thu Nov 08 21:07:17 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Testing Linux 2.6.39-rc's on rp3440
Date: Mon, 16 May 2011 19:44:50 -0400
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I noticed one further thing about these hpmcs.  There seems to be
a relationship between the exception address recorded in cr21 and
the address used in the faulting instruction.  I have seen this in
at least four hpmcs, including the lba_pat_out8 one posted previously
to the list.  Here is one from yesterday:

-----------------  Processor 1 HPMC Information - PDC Version: 46.34  ------ 

Timestamp =   Sun May  15 18:52:36 GMT 2011    (20:11:05:15:18:52:36)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0xe800035c00e00000 0x00000000403140c0
       0x57000f7300e00000 0x8040004000000000
       0x5600100b00e00000 0x0000000000000194
       0x5600106400e00000 0xfffffff0f0436fc0


General Registers 0 - 31
00-03  0000000000000000  0000000040622080  00000000403189b0  00000000405c64b0
04-07  0000000040614080  0000000000000000  00000000404e8100  000000007f1048d0
08-11  0000000000000001  0000000000000100  000000007f0b1020  0000000000200200
12-15  000000004062e880  0000000040622080  000000007f0b1420  000000007f0b1820
16-19  000000007f0b1c20  0000000000000001  0000000040622080  000000007f1047f8
20-23  ffe0000000000000  ffffffffffffffff  000000004058d110  8000000000000000
24-27  0000000100028109  0000000000000001  00000000405c64b0  0000000040614080
28-31  0000000004082001  000000007f104970  000000007f1049a0  0000000004082000

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000da6  0000000000000000  00000000000000c0  000000000000003f
12-15  0000000000000000  0000000000000000  0000000000103000  ffe0000000000000
16-19  000000d398385ff0  0000000000000000  00000000403140c0  000000000f80001c
20-23  00000000a607ffd0  0000000014082001  000000ff0804ff0f  0000000000000000
24-27  0000000000573000  000000003c11e000  ffffffffffffffff  0000000040002f80
28-31  0000000040002140  ffffffffffffffff  000000007f104000  ffffffffffffffff

Space Registers 0 - 7
00-03  0000000000369800  0000000000000000  0000000000000000  0000000000369800
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x00000000403140c4

Processor 1 was executing ldb in mem_serial_in:

00000000403140a8 <mem_serial_in>:
    403140a8:   43 5c 00 a2     ldb 51(r26),ret0
    403140ac:   53 5f 00 20     ldd 10(r26),r31
    403140b0:   01 7c 18 c0     mtsarcm ret0
    403140b4:   d7 99 00 00     depw,z r25,sar,32,ret0
    403140b8:   db 9c 0f e0     extrd,s ret0,63,32,ret0
    403140bc:   0b 9f 0a 1c     add,l r31,ret0,ret0
=>  403140c0:   0f 80 00 1c     ldb r0(ret0),ret0
    403140c4:   e8 40 d0 00     bve (rp)
    403140c8:   db 9c 0b f8     extrd,u ret0,63,8,ret0
    403140cc:   00 00 00 00     break 0,0

Note the address in $ret0 and the value in $cr21.  I'm thinking
some form of cache aliasing may be the cause.  The fault appears
related to an io space access.

Dave
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J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:07:17 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc updates for the 2.6.38 merge window
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There are is one major fix in this: hopefully a final end to some of the
segfault issues on the platform caused by aggressive icache speculation.
Also, all of the currently missing syscalls on the platform are wired up

The patch is available here:

master.kernel.org:/pub/scm/linux/kernel/git/jejb/parisc-2.6.git#for-linus

The short changelog is:

James Bottomley (6):
      [PARISC] wire up syncfs syscall
      [PARISC] wire up the fhandle syscalls
      [PARISC] wire up clock_adjtime syscall
      [PARISC] wire up fanotify syscalls
      [PARISC] prevent speculative re-read on cache flush
      [PARISC] only make executable areas executable

Meelis Roos (1):
      [PARISC] fix pacache .size with new binutils

And the diffstat:

 arch/parisc/include/asm/cacheflush.h |    5 +-
 arch/parisc/include/asm/pgtable.h    |    9 +-
 arch/parisc/include/asm/unistd.h     |    8 +-
 arch/parisc/kernel/cache.c           |   13 ++-
 arch/parisc/kernel/entry.S           |    3 +
 arch/parisc/kernel/head.S            |    5 +-
 arch/parisc/kernel/module.c          |   10 ++-
 arch/parisc/kernel/pacache.S         |    6 +-
 arch/parisc/kernel/sys_parisc32.c    |    8 +
 arch/parisc/kernel/syscall_table.S   |    6 +
 arch/parisc/kernel/vmlinux.lds.S     |    1 +
 arch/parisc/mm/init.c                |  260 +++++++++++++++++++---------------
 12 files changed, 205 insertions(+), 129 deletions(-)

James


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                 from include/net/ipv6.h:16,
                 from include/linux/sunrpc/clnt.h:25,
                 from include/linux/nfs_fs.h:50,
                 from init/do_mounts.c:20:
include/net/dst.h: In function 'dst_hold':
include/net/dst.h:238:2: error: size of unnamed array is negative
In file included from include/linux/nfs_fs.h:59:0,
                 from init/do_mounts.c:20:
include/linux/mempool.h: In function 'mempool_create_kmalloc_pool':
include/linux/mempool.h:58:10: warning: cast to pointer from integer of 
different size

This is both in 2.6.38.6 and 2.6.39, but is not in 2.6.38.4 when compiling for 
my C8000.

pioneer src #  hppa64-unknown-linux-gnu-gcc --version
hppa64-unknown-linux-gnu-gcc (Gentoo 4.5.2 p1.1) 4.5.2

Greetings,

Eike
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From - Thu Nov 08 21:07:17 2018
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(Cc netdev as well)

On Sun, 22 May 2011 10:15:19 +0200, Rolf Eike Beer wrote:

> from include/net/ipv6.h:16,
>                  from include/linux/sunrpc/clnt.h:25,
>                  from include/linux/nfs_fs.h:50,
>                  from init/do_mounts.c:20:
> include/net/dst.h: In function 'dst_hold': include/net/dst.h:238:2:
> error: size of unnamed array is negative In file included from
> include/linux/nfs_fs.h:59:0,
>                  from init/do_mounts.c:20:


Seems someone touched struct dst_entry...

> include/linux/mempool.h: In function 'mempool_create_kmalloc_pool':
> include/linux/mempool.h:58:10: warning: cast to pointer from integer of
> different size
> 
> This is both in 2.6.38.6 and 2.6.39, but is not in 2.6.38.4 when
> compiling for my C8000.
> 
> pioneer src #  hppa64-unknown-linux-gnu-gcc --version
> hppa64-unknown-linux-gnu-gcc (Gentoo 4.5.2 p1.1) 4.5.2
> 
> Greetings,
> 
> Eike



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On Sun, May 22, 2011 at 10:15:19AM +0200, Rolf Eike Beer wrote:
>                  from include/net/ipv6.h:16,
>                  from include/linux/sunrpc/clnt.h:25,
>                  from include/linux/nfs_fs.h:50,
>                  from init/do_mounts.c:20:
> include/net/dst.h: In function 'dst_hold':
> include/net/dst.h:238:2: error: size of unnamed array is negative
> In file included from include/linux/nfs_fs.h:59:0,
>                  from init/do_mounts.c:20:
> include/linux/mempool.h: In function 'mempool_create_kmalloc_pool':
> include/linux/mempool.h:58:10: warning: cast to pointer from integer of 
> different size
> 
> This is both in 2.6.38.6 and 2.6.39, but is not in 2.6.38.4 when compiling for 
> my C8000.

Could you bisect it down to the patch that causes the problem in
2.6.38.6?

thanks,

greg k-h

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Subject: Re: [GIT PULL] parisc updates for the 2.6.38 merge window
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For 2.6.38?

Dave
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John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:

>For 2.6.38?

Yes well as you and several others noticed I forgot to forward port the pull template.

Sorry

James
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Am Sonntag, 22. Mai 2011, 07:32:22 schrieb Greg KH:
> On Sun, May 22, 2011 at 10:15:19AM +0200, Rolf Eike Beer wrote:
> >                  from include/net/ipv6.h:16,
> >                  from include/linux/sunrpc/clnt.h:25,
> >                  from include/linux/nfs_fs.h:50,
> > 
> >                  from init/do_mounts.c:20:
> > include/net/dst.h: In function 'dst_hold':
> > include/net/dst.h:238:2: error: size of unnamed array is negative
> > In file included from include/linux/nfs_fs.h:59:0,
> > 
> >                  from init/do_mounts.c:20:
> > include/linux/mempool.h: In function 'mempool_create_kmalloc_pool':
> > include/linux/mempool.h:58:10: warning: cast to pointer from integer of
> > different size
> > 
> > This is both in 2.6.38.6 and 2.6.39, but is not in 2.6.38.4 when
> > compiling for my C8000.
> 
> Could you bisect it down to the patch that causes the problem in
> 2.6.38.6?

I will try if I find time in the next days. Until now I can only confirm that 
2.6.38.5 builds fine.

Eike	
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From - Thu Nov 08 21:07:17 2018
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From: Jeroen Roovers <jer@gentoo.org>
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Subject: [PATCH] Do not set CROSS_COMPILE but let CONFIG_CROSS_COMPILE
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Do not set CROSS_COMPILE but let CONFIG_CROSS_COMPILE handle it all.
The problem this fixes manifests itself when you try to build a 64-bit kernel
on a distro which does not provide hppa$(WIDTH)-linux-gnu- but perhaps
hppa$(WIDTH)-unknown-linux-gnu- instead, like Gentoo Linux.

Signed-off-by: Jeroen Roovers <jer@gentoo.org>
---

--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -31,16 +31,10 @@
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
 WIDTH		:= 64
-CROSS_COMPILE	:= hppa64-linux-gnu-
 else # 32-bit
 WIDTH		:=
 endif
 
-# attempt to help out folks who are cross-compiling
-ifeq ($(NATIVE),1)
-CROSS_COMPILE	:= hppa$(WIDTH)-linux-
-endif

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I wrote:
> Am Sonntag, 22. Mai 2011, 07:32:22 schrieb Greg KH:
> > On Sun, May 22, 2011 at 10:15:19AM +0200, Rolf Eike Beer wrote:
> > >                  from include/net/ipv6.h:16,
> > >                  from
> > >                  include/linux/sunrpc/clnt.h:25,
> > >                  from include/linux/nfs_fs.h:50,
> > > 
> > >                  from init/do_mounts.c:20:
> > > include/net/dst.h: In function 'dst_hold':
> > > include/net/dst.h:238:2: error: size of unnamed array is negative
> > > In file included from include/linux/nfs_fs.h:59:0,
> > > 
> > >                  from init/do_mounts.c:20:
> > > include/linux/mempool.h: In function 'mempool_create_kmalloc_pool':
> > > include/linux/mempool.h:58:10: warning: cast to pointer from integer
> > > of
> > > different size
> > > 
> > > This is both in 2.6.38.6 and 2.6.39, but is not in 2.6.38.4 when
> > > compiling for my C8000.
> > 
> > Could you bisect it down to the patch that causes the problem in
> > 2.6.38.6?
> 
> I will try if I find time in the next days. Until now I can only confirm
> that 2.6.38.5 builds fine.

As 2.6.38.6 does if I use the correct .config. So it is an older issue which is 
not related to recent changes but likely some general HPPA breakage. We'll 
discuss the rest on linux-parisc.

Eike
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_______________________________________________
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From - Thu Nov 08 21:07:17 2018
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Subject: Re: [stable] PA-RISC: compile error in include/net/dst.h
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On Tue, 24 May 2011, Rolf Eike Beer wrote:

> As 2.6.38.6 does if I use the correct .config. So it is an older issue which is 
> not related to recent changes but likely some general HPPA breakage. We'll 
> discuss the rest on linux-parisc.

If you believe this is a compiler error, I suggest using gcc 4.5.3 or
4.6.0.

All releases prior to 4.5.2 contain bugs in delay slot optimization
resulting in incorrect register liveness.  4.3 and 4.4 were seriously
broken at -O1, and neither could bootstrap gcc at -O1.  I just completed
backporting all the reorg fixes that I am aware of, but they aren't
included in any 4.3 or 4.4 release.

It's quite possible most gcc 4.3 and 4.4 releases are miscompiled
on targets with branch delay slots.  As a side, all the fixes that I
backported were to the generic code.

I have been using 4.5.3 and haven't seen your problem.

Dave
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Am Dienstag, 24. Mai 2011, 15:06:14 schrieb John David Anglin:
> On Tue, 24 May 2011, Rolf Eike Beer wrote:
> > As 2.6.38.6 does if I use the correct .config. So it is an older issue
> > which is not related to recent changes but likely some general HPPA
> > breakage. We'll discuss the rest on linux-parisc.
> 
> If you believe this is a compiler error, I suggest using gcc 4.5.3 or
> 4.6.0.
> 
> All releases prior to 4.5.2 contain bugs in delay slot optimization
> resulting in incorrect register liveness. 

If you think of PR46915: I was the one that originally stumbled over this 
although GM took the hard work of bisecting and reporting that upstream. As I 
said before, the compiler is 4.5.2.

And: no, I don't suspect a compiler error. Only a .config screwup. I'm 
currently trying to find the culprit. Good luck it breaks rather early in the 
compile.

To reproduce try to compile for hppa64 with default .config, this seems what 
has happened to me.

Eike
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I wrote:

> To reproduce try to compile for hppa64 with default .config, this seems what
> has happened to me.

Ok, the issue is rather stupid. I passed a 64 bit compiler on the command line 
but CONFIG_64BIT was not set.

Eike
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Subject: Re: [stable] PA-RISC: compile error in include/net/dst.h
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> If you think of PR46915: I was the one that originally stumbled over this 
> although GM took the hard work of bisecting and reporting that upstream. As I 
> said before, the compiler is 4.5.2.

Yes, finding the cause of bugs is often a lot harder than fixing them.
I spent about a week debugging PR49007 and then it turned out the problem
was the same as PR40086 (one line fix to reorg.c).  Hopefully most reorg
bugs are now fixed as they are nasty.

Nominally, PR46915 was fixed in 4.5.3.

Dave
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Am Dienstag, 24. Mai 2011, 16:49:37 schrieben Sie:
> > If you think of PR46915: I was the one that originally stumbled over
> > this
> > although GM took the hard work of bisecting and reporting that upstream.
> > As I said before, the compiler is 4.5.2.
> 
> Yes, finding the cause of bugs is often a lot harder than fixing them.
> I spent about a week debugging PR49007 and then it turned out the problem
> was the same as PR40086 (one line fix to reorg.c).  Hopefully most reorg
> bugs are now fixed as they are nasty.
> 
> Nominally, PR46915 was fixed in 4.5.3.

Gentoo has backported it to 4.5.2. I know that because otherwise my C3600 
wouldn't have any usable swap ;)

Eike
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From - Thu Nov 08 21:07:18 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: rcu threads with 2.6.39+
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To: linux-parisc@vger.kernel.org
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I built 2.6.39+ Sunday from Linus' tree.  System seems slower than before
and the rcu kernel threads seem to run a lot:

dave@mx3210:~$ ps -ef|grep rcu
root         7     2 46 May22 ?        21:14:59 [rcuc0]
root         8     2  0 May22 ?        00:00:00 [rcun0]
root         9     2  0 May22 ?        00:00:03 [rcun1]
root        37     2 19 May22 ?        08:55:59 [rcuc1]
root        41     2 10 May22 ?        04:50:25 [rcuc2]
root        45     2 11 May22 ?        05:10:35 [rcuc3]

Any ideas?

Dave
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Subject: Re: [stable] PA-RISC: compile error in include/net/dst.h
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On Tue, 24 May 2011, Rolf Eike Beer wrote:

> Gentoo has backported it to 4.5.2. I know that because otherwise my C3600 
> wouldn't have any usable swap ;)

My main point was to advise those using older gcc versions to update.

Dave
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From: Mike Frysinger <vapier@gentoo.org>
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Subject: Re: [PATCH] Do not set CROSS_COMPILE but let CONFIG_CROSS_COMPILE handle it all.
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On Tuesday, May 24, 2011 13:47:01 Jeroen Roovers wrote:
> Do not set CROSS_COMPILE but let CONFIG_CROSS_COMPILE handle it all.
> The problem this fixes manifests itself when you try to build a 64-bit
> kernel on a distro which does not provide hppa$(WIDTH)-linux-gnu- but
> perhaps hppa$(WIDTH)-unknown-linux-gnu- instead, like Gentoo Linux.
>=20
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
> @@ -31,16 +31,10 @@
>  UTS_MACHINE	:=3D parisc64
>  CHECKFLAGS	+=3D -D__LP64__=3D1 -m64
>  WIDTH		:=3D 64
> -CROSS_COMPILE	:=3D hppa64-linux-gnu-
>  else # 32-bit
>  WIDTH		:=3D
>  endif
>=20
> -# attempt to help out folks who are cross-compiling
> -ifeq ($(NATIVE),1)
> -CROSS_COMPILE	:=3D hppa$(WIDTH)-linux-
> -endif

i wonder if there isnt some middle ground.  like only setting CROSS_COMPILE=
=20
like so:
ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE :=3D hppa$(WIDTH)-linux-
endif

i think that should still work if people set CONFIG_CROSS_COMPILE, but if t=
hey=20
havent, get the existing (semi-sane) defaults.
=2Dmike

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From - Thu Nov 08 21:07:18 2018
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Subject: Re: [PATCH] Do not set CROSS_COMPILE but let CONFIG_CROSS_COMPILE handle it all.
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also, since this is a parisc-specific patch, i'd suggest a summary that=20
reflects that.  perhaps something like:
parisc: do not always override CROSS_COMPILE
=2Dmike

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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: debian hppa
Date: Fri, 27 May 2011 12:24:54 -0400
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Cc: dann frazier <dannf@dannf.org>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Fri, 27 May 2011, Carlos O'Donell wrote:

> On Fri, May 27, 2011 at 10:56 AM, dann frazier <dannf@dannf.org> wrote:
> > Probably. debian-ports is the only other option I know of - but it
> > means we need people to step up and do random bits of release work
> > (keeping a working installer, etc). I also think we'd need to have
> > some notion of a "stable" release - I don't think an unstable-only
> > release is very useful outside of a developer's basement, and not
> > something I'd want to host our infrastructure systems on.
> >
> > Since I don't see that happening, yes, Gentoo.
> >
> 
> We need like 3-4 more people on the project to properly support
> debian-ports for hppa. I don't think that type of support is going to
> materialize any time soon.

It's unclear whether any volunteer support for hppa remains within
"debian".  I added the parisc-linux list to the cc list to make people
aware of the situation.

Aside from the issue about releases, the buildd process is stuck
due to unresolved dependencies.  Maybe it should be shutdown to
preserve state.

> Therefore I think Gentoo is probably the best option for the community.
> 
> I don't care how we achieve a sustainable distribution for hppa, only
> that we continue to provide value to our user community.

There is some hppa work still being done in Gentoo, so I tend to agree
but I have no direct experience with it.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:07:18 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: debian hppa
Date: Fri, 27 May 2011 11:29:15 -0500
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Cc: Carlos O'Donell <carlos@systemhalted.org>,
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To: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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On Fri, 2011-05-27 at 12:24 -0400, John David Anglin wrote:
> On Fri, 27 May 2011, Carlos O'Donell wrote:
> 
> > On Fri, May 27, 2011 at 10:56 AM, dann frazier <dannf@dannf.org> wrote:
> > > Probably. debian-ports is the only other option I know of - but it
> > > means we need people to step up and do random bits of release work
> > > (keeping a working installer, etc). I also think we'd need to have
> > > some notion of a "stable" release - I don't think an unstable-only
> > > release is very useful outside of a developer's basement, and not
> > > something I'd want to host our infrastructure systems on.

I also don't think an unstable only release is viable.  Can't we just
run a private buildd on stable, testing and unstable?

> > > Since I don't see that happening, yes, Gentoo.
> > >
> > 
> > We need like 3-4 more people on the project to properly support
> > debian-ports for hppa. I don't think that type of support is going to
> > materialize any time soon.
> 
> It's unclear whether any volunteer support for hppa remains within
> "debian".  I added the parisc-linux list to the cc list to make people
> aware of the situation.
> 
> Aside from the issue about releases, the buildd process is stuck
> due to unresolved dependencies.  Maybe it should be shutdown to
> preserve state.
> 
> > Therefore I think Gentoo is probably the best option for the community.
> > 
> > I don't care how we achieve a sustainable distribution for hppa, only
> > that we continue to provide value to our user community.
> 
> There is some hppa work still being done in Gentoo, so I tend to agree
> but I have no direct experience with it.

Sure ... I've no objection to moving from debian to gentoo if that means
we get a working distribution.  It's a bit of a hassle, since I have to
move all my x86 boxes as well (don't ask, complex infrastructure with a
parisc as gateway mirror in the middle), but I suppose it's pain only
once.

James


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On Fri, May 27, 2011 at 12:24:54PM -0400, John David Anglin wrote:
> On Fri, 27 May 2011, Carlos O'Donell wrote:
> 
> > On Fri, May 27, 2011 at 10:56 AM, dann frazier <dannf@dannf.org> wrote:
> > > Probably. debian-ports is the only other option I know of - but it
> > > means we need people to step up and do random bits of release work
> > > (keeping a working installer, etc). I also think we'd need to have
> > > some notion of a "stable" release - I don't think an unstable-only
> > > release is very useful outside of a developer's basement, and not
> > > something I'd want to host our infrastructure systems on.
> > >
> > > Since I don't see that happening, yes, Gentoo.
> > >
> > 
> > We need like 3-4 more people on the project to properly support
> > debian-ports for hppa. I don't think that type of support is going to
> > materialize any time soon.
> 
> It's unclear whether any volunteer support for hppa remains within
> "debian".  I added the parisc-linux list to the cc list to make people
> aware of the situation.
> 
> Aside from the issue about releases, the buildd process is stuck
> due to unresolved dependencies.  Maybe it should be shutdown to
> preserve state.

Stuck? Why do you say that? We are only building updates for lenny
currently, and that seems to be working just fine.

> > Therefore I think Gentoo is probably the best option for the community.
> > 
> > I don't care how we achieve a sustainable distribution for hppa, only
> > that we continue to provide value to our user community.
> 
> There is some hppa work still being done in Gentoo, so I tend to agree
> but I have no direct experience with it.
> 
> Dave
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Subject: Re: debian hppa
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Cc: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
	Carlos O'Donell <carlos@systemhalted.org>,
	linux-parisc@vger.kernel.org
To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Fri, May 27, 2011 at 11:29:15AM -0500, James Bottomley wrote:
> On Fri, 2011-05-27 at 12:24 -0400, John David Anglin wrote:
> > On Fri, 27 May 2011, Carlos O'Donell wrote:
> > 
> > > On Fri, May 27, 2011 at 10:56 AM, dann frazier <dannf@dannf.org> wrote:
> > > > Probably. debian-ports is the only other option I know of - but it
> > > > means we need people to step up and do random bits of release work
> > > > (keeping a working installer, etc). I also think we'd need to have
> > > > some notion of a "stable" release - I don't think an unstable-only
> > > > release is very useful outside of a developer's basement, and not
> > > > something I'd want to host our infrastructure systems on.
> 
> I also don't think an unstable only release is viable.  Can't we just
> run a private buildd on stable, testing and unstable?

debian-ports has offered to provide this infrastructure for us - but
they currently only build sid. We'd need some extra manpower to help
them work on the processes to maintain other suites.

> > > > Since I don't see that happening, yes, Gentoo.
> > > >
> > > 
> > > We need like 3-4 more people on the project to properly support
> > > debian-ports for hppa. I don't think that type of support is going to
> > > materialize any time soon.
> > 
> > It's unclear whether any volunteer support for hppa remains within
> > "debian".  I added the parisc-linux list to the cc list to make people
> > aware of the situation.
> > 
> > Aside from the issue about releases, the buildd process is stuck
> > due to unresolved dependencies.  Maybe it should be shutdown to
> > preserve state.
> > 
> > > Therefore I think Gentoo is probably the best option for the community.
> > > 
> > > I don't care how we achieve a sustainable distribution for hppa, only
> > > that we continue to provide value to our user community.
> > 
> > There is some hppa work still being done in Gentoo, so I tend to agree
> > but I have no direct experience with it.
> 
> Sure ... I've no objection to moving from debian to gentoo if that means
> we get a working distribution.  It's a bit of a hassle, since I have to
> move all my x86 boxes as well (don't ask, complex infrastructure with a
> parisc as gateway mirror in the middle), but I suppose it's pain only
> once.
> 
> James
> 
> 
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: debian hppa
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To: dannf@dannf.org (dann frazier)
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> > Aside from the issue about releases, the buildd process is stuck
> > due to unresolved dependencies.  Maybe it should be shutdown to
> > preserve state.
> 
> Stuck? Why do you say that? We are only building updates for lenny
> currently, and that seems to be working just fine.

I was referring to unstable on debian-ports.

I setup per this message:
http://lists.debian.org/debian-hppa/2011/05/msg00002.html
A few packages updated but nothing has updated in the last
couple of days.

See:
http://buildd.debian-ports.org/stats/hppa.txt

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Fri, May 27, 2011 at 02:18:41PM -0400, John David Anglin wrote:
> > > Aside from the issue about releases, the buildd process is stuck
> > > due to unresolved dependencies.  Maybe it should be shutdown to
> > > preserve state.
> > 
> > Stuck? Why do you say that? We are only building updates for lenny
> > currently, and that seems to be working just fine.
> 
> I was referring to unstable on debian-ports.
> 
> I setup per this message:
> http://lists.debian.org/debian-hppa/2011/05/msg00002.html
> A few packages updated but nothing has updated in the last
> couple of days.
> 
> See:
> http://buildd.debian-ports.org/stats/hppa.txt

There are no buildds configured for building debian-ports yet, as far
as I know.
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: debian hppa
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On Fri, 27 May 2011, dann frazier wrote:

> There are no buildds configured for building debian-ports yet, as far
> as I know.

Will this happen?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:07:19 2018
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On Fri, May 27, 2011 at 04:20:46PM -0400, John David Anglin wrote:
> On Fri, 27 May 2011, dann frazier wrote:
> 
> > There are no buildds configured for building debian-ports yet, as far
> > as I know.
> 
> Will this happen?

If there is interest/people willing to work towards maintaining a
stable release off of debian-ports, I can setup/manage buildds to do
so. But, I personally don't have interest in maintaining systems that
run an unstable-only port.
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From - Thu Nov 08 21:07:19 2018
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Subject: Re: debian hppa
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> On Fri, May 27, 2011 at 04:20:46PM -0400, John David Anglin wrote:
> > On Fri, 27 May 2011, dann frazier wrote:
> > 
> > > There are no buildds configured for building debian-ports yet, as far
> > > as I know.
> > 
> > Will this happen?
> 
> If there is interest/people willing to work towards maintaining a
> stable release off of debian-ports, I can setup/manage buildds to do
> so. But, I personally don't have interest in maintaining systems that
> run an unstable-only port.

I am willing to help within the limits of my free time (evenings and
weekends).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:07:19 2018
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On Sat, May 28, 2011 at 1:37 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> On Fri, May 27, 2011 at 04:20:46PM -0400, John David Anglin wrote:
>> > On Fri, 27 May 2011, dann frazier wrote:
>> >
>> > > There are no buildds configured for building debian-ports yet, as far
>> > > as I know.
>> >
>> > Will this happen?
>>
>> If there is interest/people willing to work towards maintaining a
>> stable release off of debian-ports, I can setup/manage buildds to do
>> so. But, I personally don't have interest in maintaining systems that
>> run an unstable-only port.
>
> I am willing to help within the limits of my free time (evenings and
> weekends).

I'm willing to provide access to hardware (machines listed under
"ESIEE testring" on http://www.fr.parisc-linux.org/cluster.html -
which needs update btw as the cupertino testring is no more) for as
long as it'll be usable with Debian. I have zero interest in Gentoo
(essentially for technical and practical reasons which are outside the
scope of this email) and will not migrate to it. That means that if
debian(-ports)/hppa is no more and I have to reclaim some rackspace in
the datacenter I manage, the parisc machines will likely be the first
to go away... I'll let people know if/whenever this happens, so that
pickups can be arranged if need be.

BTW, I'm still running 2.6.22.19 on most these machines, and I've kind
of lost track: do we have a known better kernel I could safely upgrade
to?

HTH
T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:07:19 2018
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Subject: [PATCH 4/4] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
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	Arjan van de Ven <arjan@linux.intel.com>,
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The help text for this config is duplicated across the x86,
parisc, and s390 Kconfig.debug files. Arnd Bergman noted that the
help text was slightly misleading and should be fixed to state
that enabling this option isn't a problem when using pre 4.4 gcc.

To simplify the rewording, consolidate the text into
lib/Kconfig.debug and modify it there to be more explicit about
when you should say N to this config.

Also, make the text a bit more generic by stating that this
option enables compile time checks so we can cover architectures
which emit warnings vs. ones which emit errors. The details of
how an architecture decided to implement the checks isn't as
important as the concept of compile time checking of
copy_from_user() calls.

While we're doing this, remove all the copy_from_user_overflow()
code that's duplicated many times and place it into lib/ so that
any architecture supporting this option can get the function for
free.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: linux-parisc@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
---
 arch/parisc/Kconfig             |    1 +
 arch/parisc/Kconfig.debug       |   14 --------------
 arch/s390/Kconfig               |    1 +
 arch/s390/Kconfig.debug         |   14 --------------
 arch/s390/lib/Makefile          |    1 -
 arch/s390/lib/usercopy.c        |    8 --------
 arch/sparc/lib/Makefile         |    1 -
 arch/sparc/lib/usercopy.c       |    8 --------
 arch/tile/Kconfig               |    8 +-------
 arch/tile/include/asm/uaccess.h |    7 ++++++-
 arch/tile/lib/uaccess.c         |    8 --------
 arch/x86/Kconfig                |    1 +
 arch/x86/Kconfig.debug          |   14 --------------
 arch/x86/lib/usercopy_32.c      |    6 ------
 arch/x86/lib/usercopy_64.c      |    6 ------
 lib/Kconfig.debug               |   18 ++++++++++++++++++
 lib/Makefile                    |    1 +
 lib/usercopy.c                  |    8 ++++++++
 18 files changed, 37 insertions(+), 88 deletions(-)
 delete mode 100644 arch/s390/lib/usercopy.c
 delete mode 100644 arch/sparc/lib/usercopy.c
 create mode 100644 lib/usercopy.c

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 65adc86..3385982 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -15,6 +15,7 @@ config PARISC
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_PROBE
 	select IRQ_PER_CPU
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 7305ac8..bc989e5 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -12,18 +12,4 @@ config DEBUG_RODATA
          portion of the kernel code won't be covered by a TLB anymore.
          If in doubt, say "N".
 
-config DEBUG_STRICT_USER_COPY_CHECKS
-	bool "Strict copy size checks"
-	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
-	---help---
-	  Enabling this option turns a certain set of sanity checks for user
-	  copy operations into compile time failures.
-
-	  The copy_from_user() etc checks are there to help test if there
-	  are sufficient security checks on the length argument of
-	  the copy operation, by having gcc prove that the argument is
-	  within bounds.
-
-	  If unsure, or if you run an older (pre 4.4) gcc, say N.
-
 endmenu
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 9fab2aa..9726a23 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -117,6 +117,7 @@ config S390
 	select ARCH_INLINE_WRITE_UNLOCK_BH
 	select ARCH_INLINE_WRITE_UNLOCK_IRQ
 	select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 
 config SCHED_OMIT_FRAME_POINTER
 	def_bool y
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index d76cef3..aa1796c 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -17,20 +17,6 @@ config STRICT_DEVMEM
 
 	  If you are unsure, say Y.
 
-config DEBUG_STRICT_USER_COPY_CHECKS
-	def_bool n
-	prompt "Strict user copy size checks"
-	---help---
-	  Enabling this option turns a certain set of sanity checks for user
-	  copy operations into compile time warnings.
-
-	  The copy_from_user() etc checks are there to help test if there
-	  are sufficient security checks on the length argument of
-	  the copy operation, by having gcc prove that the argument is
-	  within bounds.
-
-	  If unsure, or if you run an older (pre 4.4) gcc, say N.
-
 config DEBUG_SET_MODULE_RONX
 	def_bool y
 	depends on MODULES
diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
index 761ab8b..97975ec 100644
--- a/arch/s390/lib/Makefile
+++ b/arch/s390/lib/Makefile
@@ -3,7 +3,6 @@
 #
 
 lib-y += delay.o string.o uaccess_std.o uaccess_pt.o
-obj-y += usercopy.o
 obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o
 lib-$(CONFIG_64BIT) += uaccess_mvcos.o
 lib-$(CONFIG_SMP) += spinlock.o
diff --git a/arch/s390/lib/usercopy.c b/arch/s390/lib/usercopy.c
deleted file mode 100644
index 14b363f..0000000
--- a/arch/s390/lib/usercopy.c
+++ /dev/null
@@ -1,8 +0,0 @@
-#include <linux/module.h>
-#include <linux/bug.h>
-
-void copy_from_user_overflow(void)
-{
-	WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index 7f01b8fc..7747e40 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -43,4 +43,3 @@ obj-y                 += iomap.o
 obj-$(CONFIG_SPARC32) += atomic32.o
 obj-y                 += ksyms.o
 obj-$(CONFIG_SPARC64) += PeeCeeI.o
-obj-y                 += usercopy.o
diff --git a/arch/sparc/lib/usercopy.c b/arch/sparc/lib/usercopy.c
deleted file mode 100644
index 14b363f..0000000
--- a/arch/sparc/lib/usercopy.c
+++ /dev/null
@@ -1,8 +0,0 @@
-#include <linux/module.h>
-#include <linux/bug.h>
-
-void copy_from_user_overflow(void)
-{
-	WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 0249b8b..801fba1 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -12,6 +12,7 @@ config TILE
 	select GENERIC_PENDING_IRQ if SMP
 	select GENERIC_IRQ_SHOW
 	select SYS_HYPERVISOR
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 
 # FIXME: investigate whether we need/want these options.
 #	select HAVE_IOREMAP_PROT
@@ -96,13 +97,6 @@ config STRICT_DEVMEM
 config SMP
 	def_bool y
 
-# Allow checking for compile-time determined overflow errors in
-# copy_from_user().  There are still unprovable places in the
-# generic code as of 2.6.34, so this option is not really compatible
-# with -Werror, which is more useful in general.
-config DEBUG_COPY_FROM_USER
-	def_bool n
-
 config HVC_TILE
 	select HVC_DRIVER
 	def_bool y
diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
index ef34d2c..9a540be 100644
--- a/arch/tile/include/asm/uaccess.h
+++ b/arch/tile/include/asm/uaccess.h
@@ -353,7 +353,12 @@ _copy_from_user(void *to, const void __user *from, unsigned long n)
 	return n;
 }
 
-#ifdef CONFIG_DEBUG_COPY_FROM_USER
+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+/*
+ * There are still unprovable places in the generic code as of 2.6.34, so this
+ * option is not really compatible with -Werror, which is more useful in
+ * general.
+ */
 extern void copy_from_user_overflow(void)
 	__compiletime_warning("copy_from_user() size is not provably correct");
 
diff --git a/arch/tile/lib/uaccess.c b/arch/tile/lib/uaccess.c
index f8d398c..030abe3 100644
--- a/arch/tile/lib/uaccess.c
+++ b/arch/tile/lib/uaccess.c
@@ -22,11 +22,3 @@ int __range_ok(unsigned long addr, unsigned long size)
 		 is_arch_mappable_range(addr, size));
 }
 EXPORT_SYMBOL(__range_ok);
-
-#ifdef CONFIG_DEBUG_COPY_FROM_USER
-void copy_from_user_overflow(void)
-{
-       WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
-#endif
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index da34972..7714ff6 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -70,6 +70,7 @@ config X86
 	select IRQ_FORCED_THREADING
 	select USE_GENERIC_SMP_HELPERS if SMP
 	select HAVE_BPF_JIT if (X86_64 && NET)
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 
 config INSTRUCTION_DECODER
 	def_bool (KPROBES || PERF_EVENTS)
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index c0f8a5c..2b00959 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -270,18 +270,4 @@ config OPTIMIZE_INLINING
 
 	  If unsure, say N.
 
-config DEBUG_STRICT_USER_COPY_CHECKS
-	bool "Strict copy size checks"
-	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
-	---help---
-	  Enabling this option turns a certain set of sanity checks for user
-	  copy operations into compile time failures.
-
-	  The copy_from_user() etc checks are there to help test if there
-	  are sufficient security checks on the length argument of
-	  the copy operation, by having gcc prove that the argument is
-	  within bounds.
-
-	  If unsure, or if you run an older (pre 4.4) gcc, say N.
-
 endmenu
diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
index e218d5d..8498684 100644
--- a/arch/x86/lib/usercopy_32.c
+++ b/arch/x86/lib/usercopy_32.c
@@ -883,9 +883,3 @@ _copy_from_user(void *to, const void __user *from, unsigned long n)
 	return n;
 }
 EXPORT_SYMBOL(_copy_from_user);
-
-void copy_from_user_overflow(void)
-{
-	WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
index d7a5d9a..b7c2849 100644
--- a/arch/x86/lib/usercopy_64.c
+++ b/arch/x86/lib/usercopy_64.c
@@ -181,9 +181,3 @@ copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
 			break;
 	return len;
 }
-
-void copy_from_user_overflow(void)
-{
-	WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 28afa4c..3298385 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1106,6 +1106,24 @@ config SYSCTL_SYSCALL_CHECK
 	  to properly maintain and use. This enables checks that help
 	  you to keep things correct.
 
+config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	bool
+
+config DEBUG_STRICT_USER_COPY_CHECKS
+	bool "Strict user copy size checks"
+	depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
+	help
+	  Enabling this option turns a certain set of sanity checks for user
+	  copy operations into compile time failures.
+
+	  The copy_from_user() etc checks are there to help test if there
+	  are sufficient security checks on the length argument of
+	  the copy operation, by having gcc prove that the argument is
+	  within bounds.
+
+	  If unsure, say N.
+
 source mm/Kconfig.debug
 source kernel/trace/Kconfig
 
diff --git a/lib/Makefile b/lib/Makefile
index 6b597fd..8195c5e 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -14,6 +14,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
 	 proportions.o prio_heap.o ratelimit.o show_mem.o \
 	 is_single_threaded.o plist.o decompress.o find_next_bit.o
 
+lib-$(CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS) += usercopy.o
 lib-$(CONFIG_MMU) += ioremap.o
 lib-$(CONFIG_SMP) += cpumask.o
 
diff --git a/lib/usercopy.c b/lib/usercopy.c
new file mode 100644
index 0000000..14b363f
--- /dev/null
+++ b/lib/usercopy.c
@@ -0,0 +1,8 @@
+#include <linux/module.h>
+#include <linux/bug.h>
+
+void copy_from_user_overflow(void)
+{
+	WARN(1, "Buffer overflow detected!\n");
+}
+EXPORT_SYMBOL(copy_from_user_overflow);
-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.


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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: rcu threads with 2.6.39+
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On Tue, 24 May 2011, John David Anglin wrote:

> I built 2.6.39+ Sunday from Linus' tree.  System seems slower than before
> and the rcu kernel threads seem to run a lot:
> 
> dave@mx3210:~$ ps -ef|grep rcu
> root         7     2 46 May22 ?        21:14:59 [rcuc0]
> root         8     2  0 May22 ?        00:00:00 [rcun0]
> root         9     2  0 May22 ?        00:00:03 [rcun1]
> root        37     2 19 May22 ?        08:55:59 [rcuc1]
> root        41     2 10 May22 ?        04:50:25 [rcuc2]
> root        45     2 11 May22 ?        05:10:35 [rcuc3]

The worst of the load problems are fixed by commit
07ef3c3b44896bc0432a901fe6ae0d0deaca47ce
Load average has now dropped by about a factor two.

However, the rcuc* threads are still major time consumers.  After
about three hours of runtime building gcc:

    7 root      -2  19     0    0    0 S    8  0.0  80:50.10 rcuc0              
   37 root      -2  19     0    0    0 S    2  0.0  37:44.47 rcuc1              
   41 root      -2  19     0    0    0 S    0  0.0  26:39.63 rcuc2              
   45 root      -2  19     0    0    0 S    0  0.0  28:12.77 rcuc3              

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:07:19 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: debian hppa
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On Sat, 28 May 2011, Thibaut VARENE wrote:

> I'm willing to provide access to hardware (machines listed under
> "ESIEE testring" on http://www.fr.parisc-linux.org/cluster.html -
> which needs update btw as the cupertino testring is no more) for as
> long as it'll be usable with Debian. I have zero interest in Gentoo
> (essentially for technical and practical reasons which are outside the
> scope of this email) and will not migrate to it. That means that if
> debian(-ports)/hppa is no more and I have to reclaim some rackspace in
> the datacenter I manage, the parisc machines will likely be the first
> to go away... I'll let people know if/whenever this happens, so that
> pickups can be arranged if need be.

I personally think it is worth trying to work toward one last linux
3.x release for hppa.  This release would have to be installable via CD
or network.

The release would be based on current tools and a somewhat limited
application set, as it is clear that we don't have the person power
for a complete debian release.  As Carlos indicated, users can compile
from source if they need something special.  The focus would be server
oriented.

With this in mind, I think it best to consider how the available hardware
can be utilized to achieve this goal.  In addition, to the ESIEE testring,
I believe that HP made available a number of machines for running their
buildds process.  Dan can probably tell us what the current status is for
these machines.

I'm not sure what the status of the Cupertino machines is and whether
any of the distributed machines will be available for this purpose.

Unfortunately, I can't open the machines that I have at NRC because of
NRC IT security policies.  At the moment, most of the available cycles on
these machines is allocated to GCC testing.  Possibly, some GCC support
could be refocused to provide more support to a Debian release.

> BTW, I'm still running 2.6.22.19 on most these machines, and I've kind
> of lost track: do we have a known better kernel I could safely upgrade
> to?

For the rp3440, the answer is definitely yes.  Unfortunately, 2.6.39
stable doesn't have the pata_cmd64x patch needed for DVD drive, or
James' latest cache fix.  So, I moved on.

I think the random segfault issue present on pa8800 and pa8900 machines
is largely fixed in 3.0.0-rc1, but it is clear linux kernels are much like
wine.  I think USB support for the rp3440 is broken and causes HPMCs.
So, I have it disabled.

At this time, there is no released stable kernel that I consider reliable
on hppa.  However, most recent kernel releases work ok on UP machines.
Of course, my testing tends to be with CPU intensive applications.

I am convinced that the rapid development methodology used by linux isn't
suited to ports with limited support.  Ideally, we should pick the next
kernel designated for longterm support and patch it.

For your other machines, the cache issues are less severe because
they support non equivalent aliasing.  However, don't throw away 2.6.22.19
because udev-266 is broken without libc6-2.13.  Installing udev-266
without libc6-2.13 will crash your machine at boot if your kernel uses
udev.  USB support is broken without it, so recovery can be tricky.

I would say your other machines need updating even if the process is
somewhat rocky as that's the only way a broadbased release can be tested.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, May 31, 2011 at 10:10:50PM -0400, John David Anglin wrote:
...
> With this in mind, I think it best to consider how the available hardware
> can be utilized to achieve this goal.  In addition, to the ESIEE testring,
> I believe that HP made available a number of machines for running their
> buildds process.  Dan can probably tell us what the current status is for
> these machines.
> 
> I'm not sure what the status of the Cupertino machines is and whether
> any of the distributed machines will be available for this purpose.

Cupertino Test Ring is gone. The entire Cupertino site (multiple acres)
was sold to Apple. If someone can secure external network access at
HP Labs in Palo Alto, I can help build a new 'Test rack'.

> Unfortunately, I can't open the machines that I have at NRC because of
> NRC IT security policies.  At the moment, most of the available cycles on
> these machines is allocated to GCC testing.  Possibly, some GCC support
> could be refocused to provide more support to a Debian release.

As discussed off list a few months ago, HW salvaged from the Cupertino
Test Ring should be headed your way in the near future.

hth,
grant
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From - Thu Nov 08 21:07:19 2018
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From - Thu Nov 08 21:07:19 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: eglibc_2.13-5 on hppa
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What's the status of glibc?  In the testsuite, I seeing various
tests hang.  For example,

dave      2301  0.0  0.2  32912 25916 ?        S    13:31   0:03 apt-get --compile source libc6
dave      2458  0.0  0.0  32912  5112 ?        S    13:31   0:00  \_ apt-get --compile source libc6
dave      2817  0.0  0.0   1968   596 ?        S    13:32   0:00      \_ sh -c cd eglibc-2.13 && dpkg-buildpackage -b -uc
dave      2820  0.0  0.0   9164  5764 ?        S    13:32   0:00          \_ /usr/bin/perl /usr/bin/dpkg-buildpackage -b -uc
dave      3206  0.0  0.0   3836  1208 ?        S    13:32   0:02              \_ /usr/bin/make -f debian/rules build
dave     27678  0.0  0.0   4484  1396 ?        S    17:52   0:00                  \_ /bin/bash -e -c set -e ; \?if [ -n "" ]; then \?  echo "Tests have been disabled via DEB_BUILD_OPTIONS." | tee bu
dave     27689  0.0  0.0   2184   896 ?        S    17:52   0:00                      \_ /usr/bin/make -C build-tree/hppa-libc -k check
dave     27692  0.0  0.0   1968   596 ?        S    17:52   0:00                      |   \_ /bin/sh -c /usr/bin/make -r PARALLELMFLAGS="" CVSOPTS="" -C /home/dave/debian/glibc/eglibc-2.13 objdir=`p
dave     27695  0.0  0.0   4752  3320 ?        S    17:52   0:04                      |       \_ /usr/bin/make -r PARALLELMFLAGS= CVSOPTS= -C /home/dave/debian/glibc/eglibc-2.13 objdir=/home/dave/de
dave       301  1.5  0.0   5680  4288 ?        S    20:35   0:15                      |           \_ /usr/bin/make subdir=rt -C rt ..=../ tests
dave      8664  0.0  0.0   2956  1156 ?        S    20:49   0:00                      |               \_ /bin/bash -c GCONV_PATH=/home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/iconvdata LC
dave      8666  0.0  0.0   1920   396 ?        S    20:49   0:00                      |                   \_ /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/elf/ld.so.1 --library-path /home
dave      8667  100  0.0  34836   588 ?        Sl   20:49   2:09                      |                       \_ /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/elf/ld.so.1 --library-path /
dave     27690  0.0  0.0   3376   616 ?        S    17:52   0:01                      \_ tee build-tree/log-test-hppa-linux-gnu-libc

dave@mx3210:~/debian/glibc$ strace -p 8667
Process 8667 attached - interrupt to quit
futex(0x143d8, FUTEX_WAIT_PRIVATE, 3, NULL^C <unfinished ...>
Process 8667 detached
dave@mx3210:~/debian/glibc$ gdb /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/elf/ld.so.1 8667
GNU gdb (GDB) 7.2-debian
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "hppa-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/elf/ld.so.1...done.
Attaching to program: /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/elf/ld.so.1, process 8667
Reading symbols from /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/rt/librt.so.1...done.
Loaded symbols for /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/rt/librt.so.1
Reading symbols from /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/nptl/libpthread.so.0...done.

warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be available.
Loaded symbols for /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/nptl/libpthread.so.0
Reading symbols from /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/libc.so.6...done.

warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be available.
Loaded symbols for /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/libc.so.6
Loaded symbols for /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/elf/ld.so.1
0x40099b28 in __pthread_cond_wait_internal (cond=0x143d0, mutex=0x143a0) at ../nptl/pthread_cond_wait.c:153
153	      lll_futex_wait (&cond->__data.__futex, futex_val, pshared);
(gdb) x/x 0x143d8
0x143d8:	0x00000003
(gdb) p pshared
$1 = 0
(gdb) info threads
* 1 process 8667  0x40099b28 in __pthread_cond_wait_internal (cond=0x143d0, mutex=0x143a0) at ../nptl/pthread_cond_wait.c:153
(gdb) bt
#0  0x40099b28 in __pthread_cond_wait_internal (cond=0x143d0, mutex=0x143a0) at ../nptl/pthread_cond_wait.c:153
#1  0x40099ee4 in __pthread_cond_wait (cond=0x143d0, mutex=0x143a0) at ../ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_wait.c:34

The "l" in the ps faux output indicates a multi-threaded process using
CLONE_THREAD, but gdb only sees one thread.

Thoughts?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Jun 7, 2011 at 9:33 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> What's the status of glibc? =A0In the testsuite, I seeing various
> tests hang. =A0For example,

AFAIK glibc 2.14 is stable and just released, but has some testsuite fa=
ilures.

glibc 2.15 is in development and I'll be looking at it next week.

> dave =A0 =A0 =A02301 =A00.0 =A00.2 =A032912 25916 ? =A0 =A0 =A0 =A0S =
=A0 =A013:31 =A0 0:03 apt-get --compile source libc6
> dave =A0 =A0 =A02458 =A00.0 =A00.0 =A032912 =A05112 ? =A0 =A0 =A0 =A0=
S =A0 =A013:31 =A0 0:00 =A0\_ apt-get --compile source libc6
> dave =A0 =A0 =A02817 =A00.0 =A00.0 =A0 1968 =A0 596 ? =A0 =A0 =A0 =A0=
S =A0 =A013:32 =A0 0:00 =A0 =A0 =A0\_ sh -c cd eglibc-2.13 && dpkg-buil=
dpackage -b -uc
> dave =A0 =A0 =A02820 =A00.0 =A00.0 =A0 9164 =A05764 ? =A0 =A0 =A0 =A0=
S =A0 =A013:32 =A0 0:00 =A0 =A0 =A0 =A0 =A0\_ /usr/bin/perl /usr/bin/dp=
kg-buildpackage -b -uc
> dave =A0 =A0 =A03206 =A00.0 =A00.0 =A0 3836 =A01208 ? =A0 =A0 =A0 =A0=
S =A0 =A013:32 =A0 0:02 =A0 =A0 =A0 =A0 =A0 =A0 =A0\_ /usr/bin/make -f =
debian/rules build
> dave =A0 =A0 27678 =A00.0 =A00.0 =A0 4484 =A01396 ? =A0 =A0 =A0 =A0S =
=A0 =A017:52 =A0 0:00 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\_ /bin/bash -=
e -c set -e ; \?if [ -n "" ]; then \? =A0echo "Tests have been disabled=
 via DEB_BUILD_OPTIONS." | tee bu
> dave =A0 =A0 27689 =A00.0 =A00.0 =A0 2184 =A0 896 ? =A0 =A0 =A0 =A0S =
=A0 =A017:52 =A0 0:00 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\_ /us=
r/bin/make -C build-tree/hppa-libc -k check
> dave =A0 =A0 27692 =A00.0 =A00.0 =A0 1968 =A0 596 ? =A0 =A0 =A0 =A0S =
=A0 =A017:52 =A0 0:00 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0 =
\_ /bin/sh -c /usr/bin/make -r PARALLELMFLAGS=3D"" CVSOPTS=3D"" -C /hom=
e/dave/debian/glibc/eglibc-2.13 objdir=3D`p
> dave =A0 =A0 27695 =A00.0 =A00.0 =A0 4752 =A03320 ? =A0 =A0 =A0 =A0S =
=A0 =A017:52 =A0 0:04 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0 =
=A0 =A0 \_ /usr/bin/make -r PARALLELMFLAGS=3D CVSOPTS=3D -C /home/dave/=
debian/glibc/eglibc-2.13 objdir=3D/home/dave/de
> dave =A0 =A0 =A0 301 =A01.5 =A00.0 =A0 5680 =A04288 ? =A0 =A0 =A0 =A0=
S =A0 =A020:35 =A0 0:15 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0=
 =A0 =A0 =A0 =A0 \_ /usr/bin/make subdir=3Drt -C rt ..=3D../ tests
> dave =A0 =A0 =A08664 =A00.0 =A00.0 =A0 2956 =A01156 ? =A0 =A0 =A0 =A0=
S =A0 =A020:49 =A0 0:00 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 \_ /bin/bash -c GCONV_PATH=3D/home/dave/debian=
/glibc/eglibc-2.13/build-tree/hppa-libc/iconvdata LC
> dave =A0 =A0 =A08666 =A00.0 =A00.0 =A0 1920 =A0 396 ? =A0 =A0 =A0 =A0=
S =A0 =A020:49 =A0 0:00 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \_ /home/dave/debian/glibc/eglibc-2.13=
/build-tree/hppa-libc/elf/ld.so.1 --library-path /home
> dave =A0 =A0 =A08667 =A0100 =A00.0 =A034836 =A0 588 ? =A0 =A0 =A0 =A0=
Sl =A0 20:49 =A0 2:09 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \_ /home/dave/debian/glibc/egli=
bc-2.13/build-tree/hppa-libc/elf/ld.so.1 --library-path /
> dave =A0 =A0 27690 =A00.0 =A00.0 =A0 3376 =A0 616 ? =A0 =A0 =A0 =A0S =
=A0 =A017:52 =A0 0:01 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\_ tee=
 build-tree/log-test-hppa-linux-gnu-libc

I never see any testsuite hangs on my a500 (vanilla 2.6.33).

I have a pile of free time next week and I hope to dedicate some time
to cleaning up the glibc testsuite.

> Thoughts?

Yes, the "warning: Unable to find libthread_db matching inferior's
thread library, thread debugging will not be available." means you
can't debug threads until you preload the new libc's
libthread_db.so.1.

You must always use the libthread_db.so.1 that matches your threading l=
ibrary.

Cheers,
Carlos.
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From - Thu Nov 08 21:07:20 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: eglibc_2.13-5 on hppa
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On Wed, 08 Jun 2011, Carlos O'Donell wrote:

> On Tue, Jun 7, 2011 at 9:33 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> > What's the status of glibc? In the testsuite, I seeing various
> > tests hang. For example,
> 
> AFAIK glibc 2.14 is stable and just released, but has some testsuite failures.

Debian is somewhat behind.

> glibc 2.15 is in development and I'll be looking at it next week.
> 
> > dave   8667 100 0.0 34836  588 ?    Sl  20:49  2:09           |            \_ /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/elf/ld.so.1 --library-path /

> I never see any testsuite hangs on my a500 (vanilla 2.6.33).

No timeouts?  The testsuite doesn't hang as it eventually kills the
tasks.  My run was on rp3440 with 2.6.39.1 with James' last two
cache fixes. 

I have the sense that there might be a cross-chip clock sync issue.
I have always seen occassional timeouts in GCC testsuite in cases that
shouldn't timeout.  I've wondered if these would go away if I disabled
processors 2 and 3.

Note in the ps output, process 8667 is sleeping at 100% CPU.

> I have a pile of free time next week and I hope to dedicate some time
> to cleaning up the glibc testsuite.

It would be great if you could look at the debian package as it
no longer builds (at least on my machine) because of unexpected errors
in the testsuite.

> > Thoughts?
> 
> Yes, the "warning: Unable to find libthread_db matching inferior's
> thread library, thread debugging will not be available." means you
> can't debug threads until you preload the new libc's
> libthread_db.so.1.
> 
> You must always use the libthread_db.so.1 that matches your threading library.

I'll try to debug test tonight.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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make[1]: *** [check] Error 2
make[1]: Leaving directory `/home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc'
#
# Testsuite failures, someone should be working towards
# fixing these! They are listed here for the purpose of
# regression testing during builds.
# Format: <Failed test>, Error <Make error code> [(ignored)]
#
annexc.out, Error 1 (ignored)
bug-ftell, Error 1
check-execstack.out, Error 1
check-localplt.out, Error 1
check-textrel.out, Error 1
tst-addr1.out, Error 1
tst-audit2.out, Error 139
tst-backtrace2.out, Error 1
tst-cancelx20.out, Error 1
tst-cancelx21.out, Error 1
tst-cancelx4.out, Error 1
tst-cancelx5.out, Error 1
tst-cleanupx4.out, Error 1
tst-cond20.out, Error 127
tst-cputimer1.out, Error 1
tst-cputimer2.out, Error 1
tst-cputimer3.out, Error 1
tst-getcpu.out, Error 1
tst-gettext6.out, Error 1
tst-longjmp_chk.out, Error 1
tst-mqueue3.out, Error 1
tst-mutexpi7a.out, Error 1
tst-mutexpi7.out, Error 1
tst-timer4.out, Error 1
tst-timer5.out, Error 1
tst-tls11.out, Error 139
tst-tls3.out, Error 1
***************
Encountered regressions that don't match expected failures:
bug-ftell, Error 1
tst-cond20.out, Error 127
tst-gettext6.out, Error 1
tst-mutexpi7a.out, Error 1
tst-mutexpi7.out, Error 1
tst-tls11.out, Error 139
tst-tls3.out, Error 1
make: *** [/home/dave/debian/glibc/eglibc-2.13/stamp-dir/check_libc] Error 1
dpkg-buildpackage: error: debian/rules build gave error exit status 2
Build command 'cd eglibc-2.13 && dpkg-buildpackage -b -uc' failed.
Fetched 23.9 MB in 12s (1,952 kB/s)
E: Child process failed

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On Wed, Jun 8, 2011 at 12:20 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> No timeouts? =A0The testsuite doesn't hang as it eventually kills the
> tasks. =A0My run was on rp3440 with 2.6.39.1 with James' last two
> cache fixes.

Yes, I do see timeouts. Specifically these nine tests tst-cancel22,
tst-cancel23, tst-cancelx4, tst-cancelx5, tst-timer4, tst-timer5,
tst-cputimer1, tst-cputimer2, and tst-cputimer3.

I need to investigate why they timeout.

Cheers,
Carlos.
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Stuck gnat1 processes
Date: Thu, 9 Jun 2011 21:30:35 -0400
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Here is another wierd bug -- four gnat1 process stuck at exactly the
same location making zero forward progress.  I have seen this a number
of times, so I thought it would be useful to report.

As far as I can tell, all are stuck in the kernel.  Gdb can't step
the code, nor do breaks on the next instruction ever get hit.  This
may have something to do with the fact that the instruction is trying
to read from text (C switch statement).

This is with 2.6.39.1 with James' last two, but I have also seen this
without the patches.  Machine is rp3440.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--rwEMma7ioTxnRzrJ
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Content-Disposition: attachment; filename="gnat1.txt"

dave@mx3210:~/gnu/gcc/objdir$ top

top - 20:31:28 up 1 day,  9:54,  2 users,  load average: 4.01, 3.62, 3.42
Tasks:  97 total,   5 running,  92 sleeping,   0 stopped,   0 zombie
Cpu(s): 92.0%us,  4.0%sy,  0.0%ni,  0.0%id,  0.0%wa,  0.0%hi,  4.0%si,  0.0%st
Mem:  10288332k total,  2741856k used,  7546476k free,   603552k buffers
Swap:   979928k total,        0k used,   979928k free,  1727896k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND           
14022 dave      20   0 87484  11m 9644 R  100  0.1   1176:59 gnat1              
14017 dave      20   0 88728  13m 9792 R   93  0.1   1174:19 gnat1              
14027 dave      20   0 93068  18m 9.9m R   93  0.2   1196:54 gnat1              
14012 dave      20   0 87900  12m 9680 R   86  0.1   1070:21 gnat1              

dave@mx3210:~/gnu/gcc/objdir$ gdb prev-gcc/gnat1 14012
GNU gdb (GDB) 7.2-debian
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "hppa-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /home/dave/gnu/gcc/objdir/prev-gcc/gnat1...done.
Attaching to program: /home/dave/gnu/gcc/objdir/prev-gcc/gnat1, process 14012
Reading symbols from /usr/lib/libmpc.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libmpc.so.2
Reading symbols from /usr/lib/libmpfr.so.4...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libmpfr.so.4
Reading symbols from /usr/lib/libgmp.so.10...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgmp.so.10
Reading symbols from /lib/libdl.so.2...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld.so.1...done.
Loaded symbols for /lib/ld.so.1
0x04087ae4 in option_enabled (opt_idx=290, opts=0x4e3dd14)
    at ../../gcc/gcc/opts-common.c:1170
1170	    switch (option->var_type)
(gdb) bt
#0  0x04087ae4 in option_enabled (opt_idx=290, opts=0x4e3dd14)
    at ../../gcc/gcc/opts-common.c:1170
#1  0x0408afd8 in diagnostic_report_diagnostic (context=0x4e3ed98, 
    diagnostic=0xfdf98a88) at ../../gcc/gcc/diagnostic.c:451
#2  0x0408b968 in warning (opt=290, 
    gmsgid=0x4234818 "padding struct to align %q+D")
    at ../../gcc/gcc/diagnostic.c:676
#3  0x020e3fa0 in place_field (rli=0x4e5a288, field=0x402c9f60)
    at ../../gcc/gcc/stor-layout.c:1151
#4  0x020ed9bc in layout_type (type=0x4e5a288)
    at ../../gcc/gcc/stor-layout.c:2047
#5  0x020ed9bc in layout_type (type=0x4e5a288)
    at ../../gcc/gcc/stor-layout.c:2047
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb) step
^C
Program received signal SIGINT, Interrupt.
0x04087ae4 in option_enabled (opt_idx=290, opts=0x4e3dd14)
    at ../../gcc/gcc/opts-common.c:1170
1170	    switch (option->var_type)
(gdb) stepi
^C
Program received signal SIGINT, Interrupt.
0x04087ae4 in option_enabled (opt_idx=290, opts=0x4e3dd14)
    at ../../gcc/gcc/opts-common.c:1170
1170	    switch (option->var_type)
(gdb) disass $pc-32,$pc+32
Dump of assembler code from 0x4087ac4 to 0x4087b04:
   0x04087ac4 <option_enabled+88>:	stw ret0,8(r3)
   0x04087ac8 <option_enabled+92>:	ldw 8(r3),ret0
   0x04087acc <option_enabled+96>:	cmpib,=,n 0,ret0,0x4087b6c <option_enabled+256>
   0x04087ad0 <option_enabled+100>:	ldw 10(r3),ret0
   0x04087ad4 <option_enabled+104>:	ldw 30(ret0),ret0
   0x04087ad8 <option_enabled+108>:	cmpib,<<,n 3,ret0,0x4087b6c <option_enabled+256>
   0x04087adc <option_enabled+112>:	ldil L%4087800,r19
   0x04087ae0 <option_enabled+116>:	ldo 2ec(r19),r19
=> 0x04087ae4 <option_enabled+120>:	ldw,s ret0(r19),r19
   0x04087ae8 <option_enabled+124>:	bv,n r0(r19)
   0x04087aec <option_enabled+128>:	# 4087afc
   0x04087af0 <option_enabled+132>:	# 4087b10
   0x04087af4 <option_enabled+136>:	# 4087b2c
   0x04087af8 <option_enabled+140>:	# 4087b4c
   0x04087afc <option_enabled+144>:	ldw 8(r3),ret0
   0x04087b00 <option_enabled+148>:	ldw 0(ret0),ret0
End of assembler dump.
(gdb) p/x $ret0
$1 = 0x0
(gdb) p/x $r19
$2 = 0x4087aec
(gdb) break *0x04087ae8
Breakpoint 1 at 0x4087ae8: file ../../gcc/gcc/opts-common.c, line 1170.
(gdb) c
Continuing.
^C
Program received signal SIGINT, Interrupt.
0x04087ae4 in option_enabled (opt_idx=290, opts=0x4e3dd14)
    at ../../gcc/gcc/opts-common.c:1170
1170	    switch (option->var_type)
(gdb) p/x $pc
$3 = 0x4087ae4
(gdb) p/x $r19
$4 = 0x4087aec
(gdb) x/x $r19
0x4087aec <option_enabled+128>:	0x04087afc

dave@mx3210:/proc/14012$ cat maps
00010000-0490c000 r-xp 00000000 08:07 1204766                            /home/dave/gnu/gcc/objdir/prev-gcc/gnat1
0490c000-0491d000 rwxp 048fc000 08:07 1204766                            /home/dave/gnu/gcc/objdir/prev-gcc/gnat1
0491d000-04f6d000 rwxp 00000000 00:00 0                                  [heap]
40000000-40037000 rw-p 00000000 00:00 0 
4003b000-4008f000 r-xp 00000000 08:05 298712                             /usr/lib/libmpfr.so.4.0.0
4008f000-40091000 rwxp 00053000 08:05 298712                             /usr/lib/libmpfr.so.4.0.0
40091000-40111000 rw-p 00000000 00:00 0 
4013e000-4015e000 r-xp 00000000 08:05 25181                              /lib/ld-2.11.2.so
4015e000-40162000 rwxp 00020000 08:05 25181                              /lib/ld-2.11.2.so
40162000-4016d000 rw-p 00000000 00:00 0 
40193000-4019e000 rw-p 00000000 00:00 0 
401e5000-401e8000 r-xp 00000000 08:05 25170                              /lib/libdl-2.11.2.so
401e8000-401e9000 rwxp 00003000 08:05 25170                              /lib/libdl-2.11.2.so
40232000-40246000 r-xp 00000000 08:05 299656                             /usr/lib/libmpc.so.2.0.0
40246000-40247000 rwxp 00013000 08:05 299656                             /usr/lib/libmpc.so.2.0.0
40247000-40347000 rw-p 00000000 00:00 0 
40435000-40497000 r-xp 00000000 08:05 298658                             /usr/lib/libgmp.so.10.0.1
40497000-4049e000 rwxp 00062000 08:05 298658                             /usr/lib/libgmp.so.10.0.1
405eb000-40744000 r-xp 00000000 08:05 25182                              /lib/libc-2.11.2.so
40744000-4074a000 rwxp 00159000 08:05 25182                              /lib/libc-2.11.2.so
4074a000-4074d000 rwxp 00000000 00:00 0 
4074d000-407a0000 rw-p 00000000 00:00 0 
408e5000-40a5a000 r--p 00000000 08:05 314648                             /usr/lib/locale/locale-archive
fdf8d000-fe013000 rwxp 00000000 00:00 0                                  [stack]

dave@mx3210:/proc/14012$ cat smaps
00010000-0490c000 r-xp 00000000 08:07 1204766                            /home/dave/gnu/gcc/objdir/prev-gcc/gnat1
Size:              74736 kB
Rss:                8932 kB
Pss:                2264 kB
Shared_Clean:       8928 kB
Shared_Dirty:          0 kB
Private_Clean:         0 kB
Private_Dirty:         4 kB
Referenced:         8932 kB
Anonymous:             4 kB
AnonHugePages:         0 kB
Swap:                  0 kB
KernelPageSize:        4 kB
MMUPageSize:           4 kB
Locked:                0 kB

----------------------------------------

dave@mx3210:~/gnu/gcc/objdir$ gdb prev-gcc/gnat1 14017
GNU gdb (GDB) 7.2-debian
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "hppa-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /home/dave/gnu/gcc/objdir/prev-gcc/gnat1...done.
Attaching to program: /home/dave/gnu/gcc/objdir/prev-gcc/gnat1, process 14017
Reading symbols from /usr/lib/libmpc.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libmpc.so.2
Reading symbols from /usr/lib/libmpfr.so.4...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libmpfr.so.4
Reading symbols from /usr/lib/libgmp.so.10...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgmp.so.10
Reading symbols from /lib/libdl.so.2...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld.so.1...done.
Loaded symbols for /lib/ld.so.1
0x04087ae4 in option_enabled (opt_idx=290, opts=0x4e3dd14)
    at ../../gcc/gcc/opts-common.c:1170
1170	    switch (option->var_type)
(gdb)  disass $pc-32,$pc+32
Dump of assembler code from 0x4087ac4 to 0x4087b04:
   0x04087ac4 <option_enabled+88>:	stw ret0,8(r3)
   0x04087ac8 <option_enabled+92>:	ldw 8(r3),ret0
   0x04087acc <option_enabled+96>:	cmpib,=,n 0,ret0,0x4087b6c <option_enabled+256>
   0x04087ad0 <option_enabled+100>:	ldw 10(r3),ret0
   0x04087ad4 <option_enabled+104>:	ldw 30(ret0),ret0
   0x04087ad8 <option_enabled+108>:	cmpib,<<,n 3,ret0,0x4087b6c <option_enabled+256>
   0x04087adc <option_enabled+112>:	ldil L%4087800,r19
   0x04087ae0 <option_enabled+116>:	ldo 2ec(r19),r19
=> 0x04087ae4 <option_enabled+120>:	ldw,s ret0(r19),r19
   0x04087ae8 <option_enabled+124>:	bv,n r0(r19)
   0x04087aec <option_enabled+128>:	# 4087afc
   0x04087af0 <option_enabled+132>:	# 4087b10
   0x04087af4 <option_enabled+136>:	# 4087b2c
   0x04087af8 <option_enabled+140>:	# 4087b4c
   0x04087afc <option_enabled+144>:	ldw 8(r3),ret0
   0x04087b00 <option_enabled+148>:	ldw 0(ret0),ret0
End of assembler dump.

----------------------------------------

dave@mx3210:~/gnu/gcc/objdir$ gdb prev-gcc/gnat1 14022
GNU gdb (GDB) 7.2-debian
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "hppa-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /home/dave/gnu/gcc/objdir/prev-gcc/gnat1...done.
Attaching to program: /home/dave/gnu/gcc/objdir/prev-gcc/gnat1, process 14022
Reading symbols from /usr/lib/libmpc.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libmpc.so.2
Reading symbols from /usr/lib/libmpfr.so.4...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libmpfr.so.4
Reading symbols from /usr/lib/libgmp.so.10...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgmp.so.10
Reading symbols from /lib/libdl.so.2...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld.so.1...done.
Loaded symbols for /lib/ld.so.1
0x04087ae4 in option_enabled (opt_idx=290, opts=0x4e3dd14)
    at ../../gcc/gcc/opts-common.c:1170
1170	    switch (option->var_type)
(gdb) disass $pc-32,$pc+32
Dump of assembler code from 0x4087ac4 to 0x4087b04:
   0x04087ac4 <option_enabled+88>:	stw ret0,8(r3)
   0x04087ac8 <option_enabled+92>:	ldw 8(r3),ret0
   0x04087acc <option_enabled+96>:	cmpib,=,n 0,ret0,0x4087b6c <option_enabled+256>
   0x04087ad0 <option_enabled+100>:	ldw 10(r3),ret0
   0x04087ad4 <option_enabled+104>:	ldw 30(ret0),ret0
   0x04087ad8 <option_enabled+108>:	cmpib,<<,n 3,ret0,0x4087b6c <option_enabled+256>
   0x04087adc <option_enabled+112>:	ldil L%4087800,r19
   0x04087ae0 <option_enabled+116>:	ldo 2ec(r19),r19
=> 0x04087ae4 <option_enabled+120>:	ldw,s ret0(r19),r19
   0x04087ae8 <option_enabled+124>:	bv,n r0(r19)
   0x04087aec <option_enabled+128>:	# 4087afc
   0x04087af0 <option_enabled+132>:	# 4087b10
   0x04087af4 <option_enabled+136>:	# 4087b2c
   0x04087af8 <option_enabled+140>:	# 4087b4c
   0x04087afc <option_enabled+144>:	ldw 8(r3),ret0
   0x04087b00 <option_enabled+148>:	ldw 0(ret0),ret0
End of assembler dump.

----------------------------------------

dave@mx3210:~/gnu/gcc/objdir$ gdb prev-gcc/gnat1 14027
GNU gdb (GDB) 7.2-debian
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "hppa-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /home/dave/gnu/gcc/objdir/prev-gcc/gnat1...done.
Attaching to program: /home/dave/gnu/gcc/objdir/prev-gcc/gnat1, process 14027
Reading symbols from /usr/lib/libmpc.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libmpc.so.2
Reading symbols from /usr/lib/libmpfr.so.4...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libmpfr.so.4
Reading symbols from /usr/lib/libgmp.so.10...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgmp.so.10
Reading symbols from /lib/libdl.so.2...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld.so.1...done.
Loaded symbols for /lib/ld.so.1
0x04087ae4 in option_enabled (opt_idx=290, opts=0x4e3dd14)
    at ../../gcc/gcc/opts-common.c:1170
1170	    switch (option->var_type)
(gdb) disass $pc-32,$pc+32
Dump of assembler code from 0x4087ac4 to 0x4087b04:
   0x04087ac4 <option_enabled+88>:	stw ret0,8(r3)
   0x04087ac8 <option_enabled+92>:	ldw 8(r3),ret0
   0x04087acc <option_enabled+96>:	cmpib,=,n 0,ret0,0x4087b6c <option_enabled+256>
   0x04087ad0 <option_enabled+100>:	ldw 10(r3),ret0
   0x04087ad4 <option_enabled+104>:	ldw 30(ret0),ret0
   0x04087ad8 <option_enabled+108>:	cmpib,<<,n 3,ret0,0x4087b6c <option_enabled+256>
   0x04087adc <option_enabled+112>:	ldil L%4087800,r19
   0x04087ae0 <option_enabled+116>:	ldo 2ec(r19),r19
=> 0x04087ae4 <option_enabled+120>:	ldw,s ret0(r19),r19
   0x04087ae8 <option_enabled+124>:	bv,n r0(r19)
   0x04087aec <option_enabled+128>:	# 4087afc
   0x04087af0 <option_enabled+132>:	# 4087b10
   0x04087af4 <option_enabled+136>:	# 4087b2c
   0x04087af8 <option_enabled+140>:	# 4087b4c
   0x04087afc <option_enabled+144>:	ldw 8(r3),ret0
   0x04087b00 <option_enabled+148>:	ldw 0(ret0),ret0
End of assembler dump.


--rwEMma7ioTxnRzrJ--
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Subject: Re: Stuck gnat1 processes
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On Thu, Jun 9, 2011 at 9:30 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> Here is another wierd bug -- four gnat1 process stuck at exactly the
> same location making zero forward progress. =A0I have seen this a num=
ber
> of times, so I thought it would be useful to report.
>
> As far as I can tell, all are stuck in the kernel. =A0Gdb can't step
> the code, nor do breaks on the next instruction ever get hit. =A0This
> may have something to do with the fact that the instruction is trying
> to read from text (C switch statement).
>
> This is with 2.6.39.1 with James' last two, but I have also seen this
> without the patches. =A0Machine is rp3440.

This looks like a combination of multiple bugs, the process is
probably dead, or not running, which is why gdb can't do anything with
it. I'm surprised the ptrace API isn't returning some more diagnostics
about the stuck process.

Cheers,
Carlos.
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On Thu, 09 Jun 2011, Carlos O'Donell wrote:

> This looks like a combination of multiple bugs, the process is
> probably dead, or not running, which is why gdb can't do anything with
> it. I'm surprised the ptrace API isn't returning some more diagnostics
> about the stuck process.

Why do you think the processes are dead or not running?  Top thinks
they are running at 100% CPU.  The general system responsiveness
seemed like full load.

The backtraces indicated that a diagnostic report was in process of
being output.  The $r19 register appears to point to the expected location.
Possibly, there is a space register mixup but gdb doesn't show them
correctly.  I think x/x $r19 worked ok.

There is no indication that the processes are waiting for anything.

Gnat1 would normally do a compilation and exit.  I don't believe it
is multithreaded.

Strace showed nothing.  Gdb always attached at the same location.

It was possible to kill the processes, and then make terminated when
the last process was killed.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Jun 9, 2011 at 11:01 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> On Thu, 09 Jun 2011, Carlos O'Donell wrote:
>
>> This looks like a combination of multiple bugs, the process is
>> probably dead, or not running, which is why gdb can't do anything wi=
th
>> it. I'm surprised the ptrace API isn't returning some more diagnosti=
cs
>> about the stuck process.
>
> Why do you think the processes are dead or not running? =A0Top thinks
> they are running at 100% CPU. =A0The general system responsiveness
> seemed like full load.

If it's not dead, and running, why do you always attach and show $pc
at the same place?

This is either a ptrace bug, a gdb bug, or a kernel bug.

Either:

* Ptrace is incorrectly always returning $pc at a fixed location.

* Process is stuck faulting, running a signal handler, and returning
to the fault location.
- Does gnat it have a signal handler?

* Kernel is not running the process therefore whenever you attach it's
in the same place.

* gdb bug causes the process to always show as being in the same place.

You have to start ruling these out.

Cheers,
Carlos.
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Subject: Re: Stuck gnat1 processes
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On Thu, Jun 09, 2011 at 09:30:35PM -0400, John David Anglin wrote:
> As far as I can tell, all are stuck in the kernel.  Gdb can't step
> the code, nor do breaks on the next instruction ever get hit.  This
> may have something to do with the fact that the instruction is trying
> to read from text (C switch statement).

sysrq-l will show a backtrace for all CPUs.  That might be helpful in
diagnosing this problem.

-- 
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Subject: [PATCH] parisc, exec: remove redundant set_fs(USER_DS)
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Cc: Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Mathias Krause <minipli@googlemail.com>,
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The address limit is already set in flush_old_exec() so those calls to
set_fs(USER_DS) are redundant.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/processor.h |    2 --
 arch/parisc/kernel/process.c        |    1 -
 2 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 9ce66e9..7213ec9 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -196,7 +196,6 @@ typedef unsigned int elf_caddr_t;
 	/* offset pc for priv. level */			\
 	pc |= 3;					\
 							\
-	set_fs(USER_DS);				\
 	regs->iasq[0] = spaceid;			\
 	regs->iasq[1] = spaceid;			\
 	regs->iaoq[0] = pc;				\
@@ -299,7 +298,6 @@ on downward growing arches, it looks like this:
 	elf_addr_t pc = (elf_addr_t)new_pc | 3;		\
 	elf_caddr_t *argv = (elf_caddr_t *)bprm->exec + 1;	\
 							\
-	set_fs(USER_DS);				\
 	regs->iasq[0] = spaceid;			\
 	regs->iasq[1] = spaceid;			\
 	regs->iaoq[0] = pc;				\
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 4b4b918..62c60b8 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -192,7 +192,6 @@ void flush_thread(void)
 	/* Only needs to handle fpu stuff or perf monitors.
 	** REVISIT: several arches implement a "lazy fpu state".
 	*/
-	set_fs(USER_DS);
 }
 
 void release_thread(struct task_struct *dead_task)
-- 
1.5.6.5


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Newsgroups: gmane.linux.ports.parisc
Subject: kernel BUG at lib/atomic64_test.c:45!
Date: Fri, 10 Jun 2011 18:58:19 -0400
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I enabled a few kernel debug tests.  CONFIG_ATOMIC64_SELFTEST=y
triggers a bug:

Brought up 1 CPUs
------------[ cut here ]------------
kernel BUG at lib/atomic64_test.c:45!

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001000111000001111 Not tainted
r00-03  000000ff08048e0f 000000004065a5c0 000000004011b024 000000004068c8f8
r04-07  000000004063d5c0 0000000000000000 00000000405a300c 00000000405ff9a0
r08-11  000000004068f3c0 00000000405252b0 0000000000000001 0000000000000000
r12-15  000000004068f3c0 000000004065a5c0 ffffffffc0000000 0000000000000081
r16-19  000000004064b5c0 000000007f0732a0 0000000000000000 0000000000000001
r20-23  aaa31337c001d00d 0000000000000001 0000000040596ec0 0000000000000080
r24-27  0000000000000020 0000000000000020 00000000405ff9a0 000000004063d5c0
r28-31  0000000040596ec0 000000007f08c200 000000007f08c270 000000000800000f
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040674fc4 0000000040674fc8
 IIR: 03ffe01f    ISR: 0000000010240000  IOR: 0000000165996ec0
 CPU:        0   CR30: 000000007f08c000 CR31: 886904b488140042
 ORIG_R28: 0000000040118c1c
 IAOQ[0]: test_atomic64+0x28c/0x290
 IAOQ[1]: pci_sort_bf_cmp+0x0/0x48
 RP(r2): do_one_initcall+0x4c/0x1e0

        INIT(v0);
	r += onestwos;
=>      BUG_ON(atomic64_add_return(onestwos, &v) != r);
	BUG_ON(v.counter != r);

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Timer and IPI IRQ handler type mismatches
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With CONFIG_DEBUG_SHIRQ, I see the error messages shown below:
Think IRQF_SHARED flag may need to be set.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

dave@mx3210:~/gnu/gcc/objdir$ dmesg
Linux version 3.0.0-rc2+ (dave@mx3210) (gcc version 4.5.3 20110101 (prerelease) [gcc-4_5-branch revision 168387] (GCC) ) #4 SMP Fri Jun 10 20:20:02 EDT 2011
unwind_init: start = 0x404d0000, end = 0x404ff410, entries = 12097
FP[0] enabled: Rev 1 Model 20
The 64-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00008870 00000491 00000000 00000002 3e0505e7352af711 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 20 rev 4 (0x00000284)
capabilities 0x35
model 9000/800/rp3440  
parisc_cache_init: Only equivalent aliasing supported!
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
 1) Start 0x0000000100000000 End 0x000000027fdfffff Size   6142 MB
 2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
Total Memory: 10238 MB
initrd: 7f61a000-7ffeea6c
initrd: reserving 3f61a000-3ffeea6c (mem_max 27fe00000)
On node 0 totalpages: 262144
free_area_init_node: node 0, pgdat 405145c0, node_mem_map 419f6000
  Normal zone: 3584 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 258560 pages, LIFO batch:31
On node 1 totalpages: 1572352
free_area_init_node: node 1, pgdat 40515340, node_mem_map 140000000
  Normal zone: 21497 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 1550855 pages, LIFO batch:31
On node 2 totalpages: 786432
free_area_init_node: node 2, pgdat 405160c0, node_mem_map 4080000000
  Normal zone: 10752 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 775680 pages, LIFO batch:31
PERCPU: Embedded 9 pages/cpu @00000000427ff000 s7808 r8192 d20864 u36864
pcpu-alloc: s7808 r8192 d20864 u36864 alloc=9*4096
pcpu-alloc: [0] 00 [0] 01 [0] 02 [0] 03 [0] 04 [0] 05 [0] 06 [0] 07 
pcpu-alloc: [0] 08 [0] 09 [0] 10 [0] 11 [0] 12 [0] 13 [0] 14 [0] 15 
pcpu-alloc: [0] 16 [0] 17 [0] 18 [0] 19 [0] 20 [0] 21 [0] 22 [0] 23 
pcpu-alloc: [0] 24 [0] 25 [0] 26 [0] 27 [0] 28 [0] 29 [0] 30 [0] 31 
SMP: bootstrap CPU ID is 0
Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 2585095
Kernel command line: root=/dev/sda5 console=ttyS1 HOME=/ palo_kernel=2/vmlinux
PID hash table entries: 4096 (order: 3, 32768 bytes)
Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)
Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Memory: 10278020k/10483712k available (3278k kernel code, 205692k reserved, 1421k data, 212k init)
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x0000004140000000   (266240 MB)
      .init : 0x000000004065c000 - 0x0000000040691000   ( 212 kB)
      .data : 0x0000000040433890 - 0x0000000040596ed0   (1421 kB)
      .text : 0x0000000040100000 - 0x0000000040433890   (3278 kB)
Hierarchical RCU implementation.
NR_IRQS:128
Console: colour dummy device 160x64
------------------------
| Locking API testsuite:
----------------------------------------------------------------------------
                                 | spin |wlock |rlock |mutex | wsem | rsem |
  --------------------------------------------------------------------------
                     A-A deadlock:failed|failed|  ok  |failed|failed|failed|
                 A-B-B-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-B-C-C-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-C-A-B-C deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-B-C-C-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-C-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
                    double unlock:failed|failed|failed|  ok  |failed|failed|
                  initialize held:failed|failed|failed|failed|failed|failed|
                 bad unlock order:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
  --------------------------------------------------------------------------
              recursive read-lock:             |  ok  |             |failed|
           recursive read-lock #2:             |  ok  |             |failed|
            mixed read-write-lock:             |failed|             |failed|
            mixed write-read-lock:             |failed|             |failed|
  --------------------------------------------------------------------------
     hard-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     hard-irqs-on + irq-safe-A/21:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/21:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/12:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/21:failed|failed|  ok  |
         hard-safe-A + irqs-on/12:failed|failed|  ok  |
         soft-safe-A + irqs-on/12:failed|failed|  ok  |
         hard-safe-A + irqs-on/21:failed|failed|  ok  |
         soft-safe-A + irqs-on/21:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/321:failed|failed|  ok  |
      hard-irq lock-inversion/123:failed|failed|  ok  |
      soft-irq lock-inversion/123:failed|failed|  ok  |
      hard-irq lock-inversion/132:failed|failed|  ok  |
      soft-irq lock-inversion/132:failed|failed|  ok  |
      hard-irq lock-inversion/213:failed|failed|  ok  |
      soft-irq lock-inversion/213:failed|failed|  ok  |
      hard-irq lock-inversion/231:failed|failed|  ok  |
      soft-irq lock-inversion/231:failed|failed|  ok  |
      hard-irq lock-inversion/312:failed|failed|  ok  |
      soft-irq lock-inversion/312:failed|failed|  ok  |
      hard-irq lock-inversion/321:failed|failed|  ok  |
      soft-irq lock-inversion/321:failed|failed|  ok  |
      hard-irq read-recursion/123:  ok  |
      soft-irq read-recursion/123:  ok  |
      hard-irq read-recursion/132:  ok  |
      soft-irq read-recursion/132:  ok  |
      hard-irq read-recursion/213:  ok  |
      soft-irq read-recursion/213:  ok  |
      hard-irq read-recursion/231:  ok  |
      soft-irq read-recursion/231:  ok  |
      hard-irq read-recursion/312:  ok  |
      soft-irq read-recursion/312:  ok  |
      hard-irq read-recursion/321:  ok  |
      soft-irq read-recursion/321:  ok  |
--------------------------------------------------------
144 out of 218 testcases failed, as expected. |
----------------------------------------------------
Calibrating delay loop... 1594.36 BogoMIPS (lpj=3188736)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 256
Brought up 1 CPUs
atomic64 test passed
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Storm Peak Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x887, 0x00004 }
2. Storm Peak Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x887, 0x00004 }
3. Storm Peak Slow at 0xfffffffffe798000 [152] { 0, 0x0, 0x887, 0x00004 }
4. Storm Peak Slow at 0xfffffffffe799000 [153] { 0, 0x0, 0x887, 0x00004 }
5. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
8. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
9. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
10. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
11. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
12. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
13. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
14. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
Releasing cpu 1 now, hpa=fffffffffe781000
FP[1] enabled: Rev 1 Model 20
IRQ handler type mismatch for IRQ 64
current handler: timer
Backtrace:
 [<0000000040116540>] dump_stack+0x18/0x28
 [<000000004019fa5c>] __setup_irq+0x584/0x590
 [<000000004019fd58>] setup_irq+0x58/0xc8
 [<0000000040662554>] init_IRQ+0xac/0x138
 [<0000000040663628>] smp_cpu_init+0x140/0x160
 [<000000004066366c>] smp_callin+0x24/0x78
 [<0000000040146c30>] enqueue_task_fair+0x58/0x70
 [<0000000040146f7c>] pick_next_entity+0x84/0x118

IRQ handler type mismatch for IRQ 65
current handler: IPI
Backtrace:
 [<0000000040116540>] dump_stack+0x18/0x28
 [<000000004019fa5c>] __setup_irq+0x584/0x590
 [<000000004019fd58>] setup_irq+0x58/0xc8
 [<0000000040662590>] init_IRQ+0xe8/0x138
 [<0000000040663628>] smp_cpu_init+0x140/0x160
 [<000000004066366c>] smp_callin+0x24/0x78
 [<0000000040146c30>] enqueue_task_fair+0x58/0x70
 [<0000000040146f7c>] pick_next_entity+0x84/0x118

Releasing cpu 2 now, hpa=fffffffffe798000
FP[2] enabled: Rev 1 Model 20
IRQ handler type mismatch for IRQ 64
current handler: timer
Backtrace:
 [<0000000040116540>] dump_stack+0x18/0x28
 [<000000004019fa5c>] __setup_irq+0x584/0x590
Releasing cpu 3 now, hpa=fffffffffe799000
 [<000000004019fd58>] setup_irq+0x58/0xc8
 [<0000000040662554>] init_IRQ+0xac/0x138
 [<0000000040663628>] smp_cpu_init+0x140/0x160
 [<000000004066366c>] smp_callin+0x24/0x78
 [<00000000401170c0>] schedule+0x240/0x530
 [<0000000040179e88>] kthread+0x98/0xd8
 [<000000004010407c>] ret_from_kernel_thread+0x24/0x40

IRQ handler type mismatch for IRQ 65
current handler: IPI
Backtrace:
 [<0000000040116540>] dump_stack+0x18/0x28
 [<000000004019fa5c>] __setup_irq+0x584/0x590
 [<000000004019fd58>] setup_irq+0x58/0xc8
 [<0000000040662590>] init_IRQ+0xe8/0x138
 [<0000000040663628>] smp_cpu_init+0x140/0x160
 [<000000004066366c>] smp_callin+0x24/0x78
 [<00000000401170c0>] schedule+0x240/0x530
 [<0000000040179e88>] kthread+0x98/0xd8
FP[3] enabled: Rev 1 Model 20
 [<000000004010407c>] ret_from_kernel_thread+0x24/0x40

IRQ handler type mismatch for IRQ 64
CPU(s): 4 x PA8800 (Mako) at 800.006400 MHz
current handler: timer
Backtrace:
 [<0000000040116540>] dump_stack+0x18/0x28
 [<000000004019fa5c>] __setup_irq+0x584/0x590
 [<000000004019fd58>] setup_irq+0x58/0xc8
 [<0000000040662554>] init_IRQ+0xac/0x138
 [<0000000040663628>] smp_cpu_init+0x140/0x160
 [<000000004066366c>] smp_callin+0x24/0x78
 [<00000000401170c0>] schedule+0x240/0x530
 [<0000000040179e88>] kthread+0x98/0xd8
 [<000000004010407c>] ret_from_kernel_thread+0x24/0x40

IRQ handler type mismatch for IRQ 65
current handler: IPI
Backtrace:
 [<0000000040116540>] dump_stack+0x18/0x28
 [<000000004019fa5c>] __setup_irq+0x584/0x590
 [<000000004019fd58>] setup_irq+0x58/0xc8
 [<0000000040662590>] init_IRQ+0xe8/0x138
 [<0000000040663628>] smp_cpu_init+0x140/0x160
 [<000000004066366c>] smp_callin+0x24/0x78
 [<00000000401170c0>] schedule+0x240/0x530
 [<0000000040179e88>] kthread+0x98/0xd8
 [<000000004010407c>] ret_from_kernel_thread+0x24/0x40

Whole cache flush 59429611 cycles, flushing 5836800 bytes 583933 cycles
Setting cache flush threshold to 2000000 (4 CPUs online)
SBA found Pluto 2.3 at 0xfffffffffed00000
Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
pci 0000:00:01.0: [1033:0035] type 0 class 0x000c03
pci 0000:00:01.0: reg 10: [mem 0x80002000-0x80002fff]
pci 0000:00:01.0: supports D1 D2
pci 0000:00:01.0: PME# supported from D0 D1 D2 D3hot
pci 0000:00:01.0: PME# disabled
pci 0000:00:01.1: [1033:0035] type 0 class 0x000c03
pci 0000:00:01.1: reg 10: [mem 0x80001000-0x80001fff]
pci 0000:00:01.1: supports D1 D2
pci 0000:00:01.1: PME# supported from D0 D1 D2 D3hot
pci 0000:00:01.1: PME# disabled
pci 0000:00:01.2: [1033:00e0] type 0 class 0x000c03
pci 0000:00:01.2: reg 10: [mem 0x80000000-0x800000ff]
pci 0000:00:01.2: supports D1 D2
pci 0000:00:01.2: PME# supported from D0 D1 D2 D3hot
pci 0000:00:01.2: PME# disabled
pci 0000:00:02.0: [1095:0649] type 0 class 0x000101
pci 0000:00:02.0: reg 10: [io  0x0d18-0x0d1f]
pci 0000:00:02.0: reg 14: [io  0x0d24-0x0d27]
pci 0000:00:02.0: reg 18: [io  0x0d10-0x0d17]
pci 0000:00:02.0: reg 1c: [io  0x0d20-0x0d23]
pci 0000:00:02.0: reg 20: [io  0x0d00-0x0d0f]
pci 0000:00:02.0: supports D1 D2
Mercury version TR3.2 (0x32) found at 0xfffffffffed22000
pci 0000:20:01.0: [1000:0021] type 0 class 0x000100
pci 0000:20:01.0: reg 10: [io  0x2100-0x21ff]
pci 0000:20:01.0: reg 14: [mem 0x90015000-0x900153ff 64bit]
pci 0000:20:01.0: reg 1c: [mem 0x90012000-0x90013fff 64bit]
pci 0000:20:01.0: supports D1 D2
pci 0000:20:01.1: [1000:0021] type 0 class 0x000100
pci 0000:20:01.1: reg 10: [io  0x2000-0x20ff]
pci 0000:20:01.1: reg 14: [mem 0x90014000-0x900143ff 64bit]
pci 0000:20:01.1: reg 1c: [mem 0x90010000-0x90011fff 64bit]
pci 0000:20:01.1: supports D1 D2
pci 0000:20:02.0: [14e4:1645] type 0 class 0x000200
pci 0000:20:02.0: reg 10: [mem 0x90000000-0x9000ffff 64bit]
pci 0000:20:02.0: PME# supported from D3hot D3cold
pci 0000:20:02.0: PME# disabled
Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
Mercury version TR3.2 (0x32) found at 0xfffffffffed28000
Mercury version TR3.2 (0x32) found at 0xfffffffffed2c000
Mercury version TR3.2 (0x32) found at 0xfffffffffed2e000
pci 0000:e0:01.0: [103c:1290] type 0 class 0x000780
pci 0000:e0:01.0: reg 18: [mem 0xf4051000-0xf405100f]
pci 0000:e0:01.1: [103c:1048] type 0 class 0x000700
pci 0000:e0:01.1: reg 10: [mem 0xf4050000-0xf4050fff]
pci 0000:e0:01.1: reg 18: [mem 0xf4020000-0xf403ffff pref]
pci 0000:e0:02.0: [1002:5159] type 0 class 0x000300
pci 0000:e0:02.0: reg 10: [mem 0xf0000000-0xf3ffffff pref]
pci 0000:e0:02.0: reg 14: [io  0xe000-0xe0ff]
pci 0000:e0:02.0: reg 18: [mem 0xf4040000-0xf404ffff]
pci 0000:e0:02.0: reg 30: [mem 0xf4000000-0xf401ffff pref]
pci 0000:e0:02.0: supports D1 D2
LBA: Truncating lmmio_space [fffffffff0000000/fffffffffecffffe] to [fffffffff0000000,fffffffffe77ffff]
powersw: Soft power switch support not available.
bio: create slab <bio-0> at 0
vgaarb: device added: PCI:0000:e0:02.0,decodes=io+mem,owns=io+mem,locks=none
vgaarb: loaded
vgaarb: bridge control possible 0000:e0:02.0
NET: Registered protocol family 2
IP route cache hash table entries: 524288 (order: 10, 4194304 bytes)
TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
UDP hash table entries: 8192 (order: 6, 262144 bytes)
UDP-Lite hash table entries: 8192 (order: 6, 262144 bytes)
NET: Registered protocol family 1
PCI: CLS 64 bytes
Trying to unpack rootfs image as initramfs...
Freeing initrd memory: 10066k freed
Performance monitoring counters enabled for Storm Peak Slow
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
msgmni has been set to 20093
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
start plist test
end plist test
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 73) is a 16550A
0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 73) is a 16550A
console [ttyS1] enabled, bootconsole disabled
0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 73) is a 16550A
0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 73) is a 16550A
Linux agpgart interface v0.103
brd: module loaded
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
mousedev: PS/2 mouse device common for all mice
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
TCP cubic registered
No RTC device found, ALARM timers will not wake from suspend
rtc-generic rtc-generic: setting system clock to 2011-06-11 00:47:41 UTC (1307753261)
Freeing unused kernel memory: 212k freed
SCSI subsystem initialized
libata version 3.00 loaded.
pata_cmd64x 0000:00:02.0: Secondary port is disabled
sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 70
scsi0 : pata_cmd64x
scsi2 : pata_cmd64x
ata1: PATA max UDMA/100 cmd 0xd18 ctl 0xd24 bmdma 0xd00 irq 69
ata2: DUMMY
pata_cmd64x: active 10 recovery 10 setup 3.
pata_cmd64x: active 10 recovery 10 setup 3.
ata1.00: ATAPI: DW-224E, C.0B, max UDMA/33
pata_cmd64x: active 3 recovery 1 setup 1.
sym0: PA-RISC Firmware, ID 7, Fast-80, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi1 : sym-2.2.3
ata1.00: configured for UDMA/33
scsi 0:0:0:0: CD-ROM            TEAC     DW-224E          C.0B PQ: 0 ANSI: 5
sr0: scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray
cdrom: Uniform CD-ROM driver Revision: 3.20
sr 0:0:0:0: Attached scsi CD-ROM sr0
sr 0:0:0:0: Attached scsi generic sg0 type 5
scsi 1:0:0:0: Direct-Access     FUJITSU  MAJ3364MC        HP12 PQ: 0 ANSI: 2
scsi target1:0:0: tagged command queuing enabled, command queue depth 16.
scsi target1:0:0: Beginning Domain Validation
scsi target1:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
scsi target1:0:0: Ending Domain Validation
scsi 1:0:0:0: Attached scsi generic sg1 type 0
sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 71
sym1: PA-RISC Firmware, ID 7, Fast-80, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi3 : sym-2.2.3
tg3.c:v3.119 (May 18, 2011)
sd 1:0:0:0: [sda] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] Mode Sense: ab 00 10 08
sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA
 sda: sda1 sda2 sda3 < sda5 sda6 sda7 >
sd 1:0:0:0: [sda] Attached SCSI disk
tg3 0000:20:02.0: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:30:6e:4b:16:4d
tg3 0000:20:02.0: eth0: attached PHY is 5701 (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0])
tg3 0000:20:02.0: eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[0]
tg3 0000:20:02.0: eth0: dma_rwctrl[76ff2d0f] dma_mask[32-bit]
EXT3-fs: barriers not enabled
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda5): mounted filesystem with writeback data mode
udev[989]: starting version 164
Adding 979928k swap on /dev/sda6.  Priority:-1 extents:1 across:979928k 
EXT3-fs (sda5): using internal journal
loop: module loaded
EXT3-fs: barriers not enabled
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda7): using internal journal
EXT3-fs (sda7): mounted filesystem with writeback data mode
NET: Registered protocol family 10
ADDRCONF(NETDEV_UP): eth0: link is not ready
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
tg3 0000:20:02.0: eth0: Link is up at 100 Mbps, full duplex
tg3 0000:20:02.0: eth0: Flow control is off for TX and off for RX
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
eth0: no IPv6 routers present

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From - Thu Nov 08 21:07:20 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc, fix return type of __atomic64_add_return
Date: Sat, 11 Jun 2011 14:42:06 -0400
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To: linux-parisc@vger.kernel.org
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The return type of __atomic64_add_return of should be s64 or long, not
int.  This fixes the atomic64 test failure that I previously reported.

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index f819559..26fd114 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -259,10 +259,10 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 
 #define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
 
-static __inline__ int
+static __inline__ s64
 __atomic64_add_return(s64 i, atomic64_t *v)
 {
-	int ret;
+	s64 ret;
 	unsigned long flags;
 	_atomic_spin_lock_irqsave(v, flags);
 
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From - Thu Nov 08 21:07:21 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc, don't claim cpu irqs more than once
Date: Sat, 11 Jun 2011 14:55:24 -0400
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The CPU irqs (timer and IPI) are not shared and only need to be claimed
once.  A mismatch error occurs if they are claimed more than once.

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..8293704 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -393,6 +393,12 @@ static struct irqaction ipi_action = {
 static void claim_cpu_irqs(void)
 {
 	int i;
+#ifdef CONFIG_SMP
+	static int irqs_claimed;
+	if (irqs_claimed)
+		return;
+	irqs_claimed = 1;
+#endif
 	for (i = CPU_IRQ_BASE; i <= CPU_IRQ_MAX; i++) {
 		irq_set_chip_and_handler(i, &cpu_interrupt_type,
 					 handle_percpu_irq);
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From - Thu Nov 08 21:07:21 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc, don't claim cpu irqs more than once
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John David Anglin wrote:
> The CPU irqs (timer and IPI) are not shared and only need to be claimed
> once.  A mismatch error occurs if they are claimed more than once.
> 
> Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: Helge Deller <deller@gmx.de>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> 
> Dave

It's a bad idea to put the patch behind your signature as it then get's 
stripped by mailers when replying. Anyway...

>         int i;
> +#ifdef CONFIG_SMP
> +       static int irqs_claimed;
> +       if (irqs_claimed)
> +               return;
> +       irqs_claimed = 1;
> +#endif

Shouldn't this be bool then? Now that we have it.

Eike
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From - Thu Nov 08 21:07:21 2018
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Subject: Re: [PATCH] parisc, don't claim cpu irqs more than once
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On Sat, 11 Jun 2011, Rolf Eike Beer wrote:

> >         int i;
> > +#ifdef CONFIG_SMP
> > +       static int irqs_claimed;
> > +       if (irqs_claimed)
> > +               return;
> > +       irqs_claimed = 1;
> > +#endif
> 
> Shouldn't this be bool then? Now that we have it.

Yes but I would like to here with this approach is acceptable.  Another
alternative might be a function init_IRQ_SMP that doesn't call claim_cpu_irqs.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, 11 Jun 2011, John David Anglin wrote:

> > Shouldn't this be bool then? Now that we have it.
> 
> Yes but I would like to here with this approach is acceptable.  Another
> alternative might be a function init_IRQ_SMP that doesn't call claim_cpu_irqs.

Looking at this a bit more, I believe this change is better.

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..0299d63 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
 {
 	local_irq_disable();	/* PARANOID - should already be disabled */
 	mtctl(~0UL, 23);	/* EIRR : clear all pending external intr */
-	claim_cpu_irqs();
 #ifdef CONFIG_SMP
-	if (!cpu_eiem)
+	if (!cpu_eiem) {
+		claim_cpu_irqs();
 		cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+	}
 #else
+	claim_cpu_irqs();
 	cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Wed, 08 Jun 2011, Carlos O'Donell wrote:

> I have a pile of free time next week and I hope to dedicate some time
> to cleaning up the glibc testsuite.
> 
> > Thoughts?
> 
> Yes, the "warning: Unable to find libthread_db matching inferior's
> thread library, thread debugging will not be available." means you
> can't debug threads until you preload the new libc's
> libthread_db.so.1.

This is what I see with libthread_db.so.1 preloaded:

dave@mx3210:~/debian/glibc/eglibc-2.13$ strace /home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/rt/tst-cputimer1
execve("/home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/rt/tst-cputimer1", ["/home/dave/debian/glibc/eglibc-2"...], [/* 21 vars */]) = 0
brk(0)                                  = 0x16000
newuname({sys="Linux", node="mx3210", ...}) = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40000000
open("/home/dave/debian/glibc/eglibc-2.13/build-tree/hppa-libc/nptl_db/libthread_db.so.1", O_RDONLY) = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\23\320\0\0\0004"..., 512) = 512
fstat64(3, {st_mode=0, st_size=4294967297000, ...}) = 0
mmap(NULL, 33776, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x403f8000
mmap(0x40400000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x40400000
close(3)                                = 0
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 41129, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40269000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/librt.so.1", O_RDONLY)       = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\33\30\0\0\0004"..., 512) = 512
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 34464, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40244000
mmap(0x4024c000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x4024c000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libpthread.so.0", O_RDONLY)  = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0W|\0\0\0004"..., 512) = 512
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40001000
mmap(NULL, 125460, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x407eb000
mmap(0x40807000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1c000) = 0x40807000
mmap(0x40808000, 6676, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40808000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\0\350\0\0\0004"..., 512) = 512
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 1448056, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40279000
mmap(0x403d2000, 24576, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x159000) = 0x403d2000
mmap(0x403d8000, 10360, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x403d8000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40002000
mprotect(0x40279000, 1413120, PROT_READ|PROT_WRITE) = 0
mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40003000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40006000
mprotect(0x40279000, 1413120, PROT_READ|PROT_EXEC) = 0
munmap(0x40269000, 41129)               = 0
set_tid_address(0x40001ce8, 0xfdffb020, 0xfdffb028, 0xfdffb028, 0x407ef9b0) = 16602
set_robust_list(0x40001cf0, 0xc)        = 0
futex(0xfdffb2c8, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0xfdffb2c8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, 0) = -1 EINVAL (Invalid argument)
rt_sigaction(SIGRTMIN, {0x4080726a, [], SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x40807272, [], SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=32768*1024, rlim_max=32768*1024}) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x40001ce8) = 16603
rt_sigaction(SIGALRM, {0x14156, [], SA_RESTART}, {SIG_DFL, [RTMIN RT_1 RT_2 RT_5 RT_8 RT_26], 0}, 8) = 0
alarm(15)                               = 0
clock_gettime returned timespec = { 0, 0 }
clock_getres returned timespec = { 0, 1 }
rt_sigaction(SIGINT, {0x14156, [], SA_RESTART}, {SIG_DFL, [RTMIN RT_1 RT_2 RT_5 RT_8 RT_26], 0}, 8) = 0
waitpid(16603, [{WIFSIGNALED(s) && WTERMSIG(s) == 92 && WCOREDUMP(s)} | 0x4c800], 0) = -512
--- SIGALRM (Alarm clock) @ 0 (0) ---
kill(16603, SIGKILL)                    = 0
waitpid(16603, 0xfdffb748, WNOHANG|WSTOPPED) = 0
nanosleep({0, 100000000}, NULL)         = -516
--- SIGCHLD (Child exited) @ 0 (0) ---
restart_syscall(<... resuming interrupted call ...>) = 0
waitpid(16603, [{WIFSIGNALED(s) && WTERMSIG(s) == SIGKILL}], WNOHANG|WSTOPPED) = 16603
write(2, "Timed out: killed the child proc"..., 36Timed out: killed the child process
) = 36
exit_group(1)                           = ?

There seems to be a problem with this futex call:
futex(0xfdffb2c8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, 0) =
-1 EINVAL (Invalid argument)

and the clock_gettime return seems wierd.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Jun 12, 2011 at 2:47 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> There seems to be a problem with this futex call:
> futex(0xfdffb2c8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, 0) =
> -1 EINVAL (Invalid argument)
>
> and the clock_gettime return seems wierd.

Thanks, can you construct a test case from this that I can use to
debug the problem? If not, then I'll look at this after I look at the
testsuite failures.

Cheers,
Carlos.
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> On Sun, Jun 12, 2011 at 2:47 PM, John David Anglin
> <dave@hiauly1.hia.nrc.ca> wrote:
> > There seems to be a problem with this futex call:
> > futex(0xfdffb2c8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, 0) =
> > -1 EINVAL (Invalid argument)
> >
> > and the clock_gettime return seems wierd.
> 
> Thanks, can you construct a test case from this that I can use to
> debug the problem? If not, then I'll look at this after I look at the
> testsuite failures.

This is one of the testsuite failures (tst-timer4.c).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Jun 12, 2011 at 4:38 PM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
>> On Sun, Jun 12, 2011 at 2:47 PM, John David Anglin
>> <dave@hiauly1.hia.nrc.ca> wrote:
>> > There seems to be a problem with this futex call:
>> > futex(0xfdffb2c8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, 0) =
>> > -1 EINVAL (Invalid argument)
>> >
>> > and the clock_gettime return seems wierd.
>>
>> Thanks, can you construct a test case from this that I can use to
>> debug the problem? If not, then I'll look at this after I look at the
>> testsuite failures.
>
> This is one of the testsuite failures (tst-timer4.c).

Perfect, I'll have a look then.

Cheers,
Carlos.
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On Wed, Jun 1, 2011 at 4:10 AM, John David Anglin
<dave@hiauly1.hia.nrc.ca> wrote:
> On Sat, 28 May 2011, Thibaut VARENE wrote:

Sorry for the late answer, I got slightly off-track lately.

>> BTW, I'm still running 2.6.22.19 on most these machines, and I've ki=
nd
>> of lost track: do we have a known better kernel I could safely upgra=
de
>> to?
>
> For the rp3440, the answer is definitely yes. =C2=A0Unfortunately, 2.=
6.39
> stable doesn't have the pata_cmd64x patch needed for DVD drive, or
> James' latest cache fix. =C2=A0So, I moved on.
>
> I think the random segfault issue present on pa8800 and pa8900 machin=
es
> is largely fixed in 3.0.0-rc1, but it is clear linux kernels are much=
 like
> wine. =C2=A0I think USB support for the rp3440 is broken and causes H=
PMCs.
> So, I have it disabled.

So, I'm not sure what to make of it: what would be the preferred
stable SMP kernel for pa8800/8900 machines as of now? Note I'm not
using udev anymore on any of my machines.

> At this time, there is no released stable kernel that I consider reli=
able
> on hppa. =C2=A0However, most recent kernel releases work ok on UP mac=
hines.
> Of course, my testing tends to be with CPU intensive applications.
>
> I am convinced that the rapid development methodology used by linux i=
sn't
> suited to ports with limited support. =C2=A0Ideally, we should pick t=
he next
> kernel designated for longterm support and patch it.

I've been making similar claims in the past, so I can only concur.
Unfortunately the time I can personally devote to palinux is
asymptotically nearing 0 ;P

> For your other machines, the cache issues are less severe because
> they support non equivalent aliasing. =C2=A0However, don't throw away=
 2.6.22.19
> because udev-266 is broken without libc6-2.13. =C2=A0Installing udev-=
266
> without libc6-2.13 will crash your machine at boot if your kernel use=
s
> udev. =C2=A0USB support is broken without it, so recovery can be tric=
ky.

not using udev anymore, after having had to face too many breakages to
remember, and deeming udev useless on headless with servers
non-hotswapable hardware anyway...

> I would say your other machines need updating even if the process is
> somewhat rocky as that's the only way a broadbased release can be tes=
ted.

Well I can assign one machine (the a500, being easy to reboot/fix as
it is) to testing kernels, but for a stable kernel suitable for the
machines I'm e.g. assigning to the GCC Compile Farm[0], what would be
a good SMP kernel version to choose? I'm looking for the same level of
hassle-freeness as 2.6.22.19 since these machines are under relatively
heavy load and I cannot afford to tend to their care on a daily basis
;-)

Thanks for your help!

T-Bone

[0] http://gcc.gnu.org/wiki/CompileFarm

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.uclinux.microblaze,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: [RFC,PATCH] Cleanup PC parallel port Kconfig
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The PC parallel port Kconfig as acquired one of those messy terms to
describe it's architecture dependencies:

       depends on (!SPARC64 || PCI) && !SPARC32 && !M32R && !FRV && \
               (!M68K || ISA) && !MN10300 && !AVR32 && !BLACKFIN

This isn't just ugly - it also almost certainly describes the dependencies
too coarse grainedly.  This is an attempt at cleaing the mess up.

I tried to faithfully aproximate the old behaviour but the existing
behaviour seems inacurate if not wrong for some architectures or platforms.
To improve on this I rely on comments from other arch and platforms
maintainers.  Any system that can take PCI multi-IO card or has a PC-style
parallel port on the mainboard should probably should now do a
select HAVE_PC_PARPORT.  And some arch Kconfig files should further
restrict the use of HAVE_PC_PARPORT to only those platforms that actually
need it.

Thanks,

  Ralf

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 arch/alpha/Kconfig      |    1 +
 arch/arm/Kconfig        |    1 +
 arch/cris/Kconfig       |    1 +
 arch/h8300/Kconfig      |    1 +
 arch/ia64/Kconfig       |    1 +
 arch/m68k/Kconfig.mmu   |    1 +
 arch/microblaze/Kconfig |    1 +
 arch/mips/Kconfig       |   16 ++++++++++++++++
 arch/parisc/Kconfig     |    1 +
 arch/powerpc/Kconfig    |    1 +
 arch/score/Kconfig      |    7 ++++---
 arch/sh/Kconfig         |    1 +
 arch/sparc/Kconfig      |    1 +
 arch/tile/Kconfig       |    1 +
 arch/unicore32/Kconfig  |    1 +
 arch/x86/Kconfig        |    1 +
 arch/xtensa/Kconfig     |    1 +
 drivers/parport/Kconfig |    6 ++++--
 18 files changed, 39 insertions(+), 5 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 60219bf..2ba8dd7 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -9,6 +9,7 @@ config ALPHA
 	select HAVE_PERF_EVENTS
 	select HAVE_DMA_ATTRS
 	select HAVE_GENERIC_HARDIRQS
+	select HAVE_PC_PARPORT
 	select GENERIC_IRQ_PROBE
 	select AUTO_IRQ_AFFINITY if SMP
 	select GENERIC_IRQ_SHOW
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9adc278..2968751f 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -21,6 +21,7 @@ config ARM
 	select HAVE_KERNEL_LZO
 	select HAVE_KERNEL_LZMA
 	select HAVE_IRQ_WORK
+	select HAVE_PC_PARPORT
 	select HAVE_PERF_EVENTS
 	select PERF_USE_VMALLOC
 	select HAVE_REGS_AND_STACK_ACCESS_API
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 17addac..2eda6cf 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -51,6 +51,7 @@ config CRIS
 	default y
 	select HAVE_IDE
 	select HAVE_GENERIC_HARDIRQS
+	select HAVE_PC_PARPORT
 	select GENERIC_IRQ_SHOW
 
 config HZ
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 091ed61..da08646 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -3,6 +3,7 @@ config H8300
 	default y
 	select HAVE_IDE
 	select HAVE_GENERIC_HARDIRQS
+	select HAVE_PC_PARPORT
 	select GENERIC_IRQ_SHOW
 
 config SYMBOL_PREFIX
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 38280ef..849805a 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -23,6 +23,7 @@ config IA64
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_DMA_API_DEBUG
 	select HAVE_GENERIC_HARDIRQS
+	select HAVE_PC_PARPORT
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PENDING_IRQ if SMP
 	select IRQ_PER_CPU
diff --git a/arch/m68k/Kconfig.mmu b/arch/m68k/Kconfig.mmu
index 16539b1..6db5a3e 100644
--- a/arch/m68k/Kconfig.mmu
+++ b/arch/m68k/Kconfig.mmu
@@ -399,6 +399,7 @@ config ISA
 	bool
 	depends on Q40 || AMIGA_PCMCIA
 	default y
+	select PARPORT_PC
 	help
 	  Find out whether you have ISA slots on your motherboard.  ISA is the
 	  name of a bus system, i.e. the way the CPU talks to the other stuff
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index e446bab..ceac9b5 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -15,6 +15,7 @@ config MICROBLAZE
 	select OF
 	select OF_EARLY_FLATTREE
 	select HAVE_GENERIC_HARDIRQS
+	select HAVE_PC_PARPORT
 	select GENERIC_IRQ_PROBE
 	select GENERIC_IRQ_SHOW
 
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 653da62..51170ba 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -39,6 +39,7 @@ config MIPS_ALCHEMY
 	select 64BIT_PHYS_ADDR
 	select CEVT_R4K_LIB
 	select CSRC_R4K_LIB
+	select HAVE_PC_PARPORT
 	select IRQ_CPU
 	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_32BIT_KERNEL
@@ -127,6 +128,7 @@ config MIPS_COBALT
 	select CSRC_R4K
 	select CEVT_GT641XX
 	select DMA_NONCOHERENT
+	select HAVE_PC_PARPORT
 	select HW_HAS_PCI
 	select I8253
 	select I8259
@@ -185,6 +187,7 @@ config MACH_JAZZ
 	select CSRC_R4K
 	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
 	select GENERIC_ISA_DMA
+	select HAVE_PC_PARPORT
 	select IRQ_CPU
 	select I8253
 	select I8259
@@ -266,6 +269,7 @@ config MIPS_MALTA
 	select CSRC_R4K
 	select DMA_NONCOHERENT
 	select GENERIC_ISA_DMA
+	select HAVE_PC_PARPORT
 	select IRQ_CPU
 	select IRQ_GIC
 	select HW_HAS_PCI
@@ -421,6 +425,7 @@ config SGI_IP22
 	select CSRC_R4K
 	select DEFAULT_SGI_PARTITION
 	select DMA_NONCOHERENT
+	select HAVE_PC_PARPORT
 	select HW_HAS_EISA
 	select I8253
 	select I8259
@@ -483,6 +488,7 @@ config SGI_IP28
 	select DEFAULT_SGI_PARTITION
 	select DMA_NONCOHERENT
 	select GENERIC_ISA_DMA_SUPPORT_BROKEN
+	select HAVE_PC_PARPORT
 	select IRQ_CPU
 	select HW_HAS_EISA
 	select I8253
@@ -517,6 +523,7 @@ config SGI_IP32
 	select CEVT_R4K
 	select CSRC_R4K
 	select DMA_NONCOHERENT
+	select HAVE_PC_PARPORT
 	select HW_HAS_PCI
 	select IRQ_CPU
 	select R5000_CPU_SCACHE
@@ -535,6 +542,7 @@ config SIBYTE_CRHINE
 	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
+	select HAVE_PC_PARPORT
 	select SIBYTE_BCM1120
 	select SWAP_IO_SPACE
 	select SYS_HAS_CPU_SB1
@@ -546,6 +554,7 @@ config SIBYTE_CARMEL
 	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
+	select HAVE_PC_PARPORT
 	select SIBYTE_BCM1120
 	select SWAP_IO_SPACE
 	select SYS_HAS_CPU_SB1
@@ -557,6 +566,7 @@ config SIBYTE_CRHONE
 	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
+	select HAVE_PC_PARPORT
 	select SIBYTE_BCM1125
 	select SWAP_IO_SPACE
 	select SYS_HAS_CPU_SB1
@@ -569,6 +579,7 @@ config SIBYTE_RHONE
 	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
+	select HAVE_PC_PARPORT
 	select SIBYTE_BCM1125H
 	select SWAP_IO_SPACE
 	select SYS_HAS_CPU_SB1
@@ -580,6 +591,7 @@ config SIBYTE_SWARM
 	select BOOT_ELF32
 	select DMA_COHERENT
 	select HAVE_PATA_PLATFORM
+	select HAVE_PC_PARPORT
 	select NR_CPUS_DEFAULT_2
 	select SIBYTE_SB1250
 	select SWAP_IO_SPACE
@@ -595,6 +607,7 @@ config SIBYTE_LITTLESUR
 	select BOOT_ELF32
 	select DMA_COHERENT
 	select HAVE_PATA_PLATFORM
+	select HAVE_PC_PARPORT
 	select NR_CPUS_DEFAULT_2
 	select SIBYTE_SB1250
 	select SWAP_IO_SPACE
@@ -608,6 +621,7 @@ config SIBYTE_SENTOSA
 	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
+	select HAVE_PC_PARPORT
 	select NR_CPUS_DEFAULT_2
 	select SIBYTE_SB1250
 	select SWAP_IO_SPACE
@@ -619,6 +633,7 @@ config SIBYTE_BIGSUR
 	bool "Sibyte BCM91480B-BigSur"
 	select BOOT_ELF32
 	select DMA_COHERENT
+	select HAVE_PC_PARPORT
 	select NR_CPUS_DEFAULT_4
 	select SIBYTE_BCM1x80
 	select SWAP_IO_SPACE
@@ -640,6 +655,7 @@ config SNI_RM
 	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
 	select DMA_NONCOHERENT
 	select GENERIC_ISA_DMA
+	select HAVE_PC_PARPORT
 	select HW_HAS_EISA
 	select HW_HAS_PCI
 	select IRQ_CPU
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 65adc86..1be72d9 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -13,6 +13,7 @@ config PARISC
 	select HAVE_PERF_EVENTS
 	select GENERIC_ATOMIC64 if !64BIT
 	select HAVE_GENERIC_HARDIRQS
+	select HAVE_PC_PARPORT
 	select GENERIC_IRQ_PROBE
 	select IRQ_PER_CPU
 
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 2729c66..b8328df 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -128,6 +128,7 @@ config PPC
 	select HAVE_REGS_AND_STACK_ACCESS_API
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
 	select HAVE_GENERIC_HARDIRQS
+	select HAVE_PC_PARPORT
 	select HAVE_SPARSE_IRQ
 	select IRQ_PER_CPU
 	select GENERIC_IRQ_SHOW
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index 288add8..ba078d0 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -1,9 +1,10 @@
 menu "Machine selection"
 
 config SCORE
-       def_bool y
-       select HAVE_GENERIC_HARDIRQS
-       select GENERIC_IRQ_SHOW
+	def_bool y
+	select HAVE_GENERIC_HARDIRQS
+	select HAVE_PC_PARPORT
+	select GENERIC_IRQ_SHOW
 
 choice
 	prompt "System type"
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index f03338c..daa65f3 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -20,6 +20,7 @@ config SUPERH
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_REGS_AND_STACK_ACCESS_API
 	select HAVE_GENERIC_HARDIRQS
+	select HAVE_PC_PARPORT
 	select HAVE_SPARSE_IRQ
 	select IRQ_FORCED_THREADING
 	select RTC_LIB
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 253986b..3679d7c 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -520,6 +520,7 @@ config PCI
 	  CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
 	  CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
 	  All of these platforms are extremely obscure, so say N if unsure.
+	select HAVE_PC_PARPORT if SPARC64
 
 config PCI_DOMAINS
 	def_bool PCI if SPARC64
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 0249b8b..3e96eff 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -8,6 +8,7 @@ config TILE
 	select USE_GENERIC_SMP_HELPERS
 	select CC_OPTIMIZE_FOR_SIZE
 	select HAVE_GENERIC_HARDIRQS
+	select HAVE_PC_PARPORT
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PENDING_IRQ if SMP
 	select GENERIC_IRQ_SHOW
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index e57dcce..3832e7e 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -8,6 +8,7 @@ config UNICORE32
 	select HAVE_KERNEL_BZIP2
 	select HAVE_KERNEL_LZO
 	select HAVE_KERNEL_LZMA
+	select HAVE_PC_PARPORT
 	select GENERIC_FIND_FIRST_BIT
 	select GENERIC_IRQ_PROBE
 	select GENERIC_IRQ_SHOW
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index da34972..750f584 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -70,6 +70,7 @@ config X86
 	select IRQ_FORCED_THREADING
 	select USE_GENERIC_SMP_HELPERS if SMP
 	select HAVE_BPF_JIT if (X86_64 && NET)
+	select HAVE_PC_PARPORT
 
 config INSTRUCTION_DECODER
 	def_bool (KPROBES || PERF_EVENTS)
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 5d43c1f..d4c3040 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -8,6 +8,7 @@ config XTENSA
 	def_bool y
 	select HAVE_IDE
 	select HAVE_GENERIC_HARDIRQS
+	select HAVE_PC_PARPORT
 	select GENERIC_IRQ_SHOW
 	help
 	  Xtensa processors are 32-bit RISC machines designed by Tensilica
diff --git a/drivers/parport/Kconfig b/drivers/parport/Kconfig
index d92185a..095a8c7 100644
--- a/drivers/parport/Kconfig
+++ b/drivers/parport/Kconfig
@@ -35,8 +35,7 @@ if PARPORT
 
 config PARPORT_PC
 	tristate "PC-style hardware"
-	depends on (!SPARC64 || PCI) && !SPARC32 && !M32R && !FRV && \
-		(!M68K || ISA) && !MN10300 && !AVR32 && !BLACKFIN
+	depends on HAVE_PC_PARPORT
 	---help---
 	  You should say Y here if you have a PC-style parallel port. All
 	  IBM PC compatible computers and some Alphas have PC-style
@@ -48,6 +47,9 @@ config PARPORT_PC
 
 	  If unsure, say Y.
 
+config HAVE_PC_PARPORT
+	bool
+
 config PARPORT_SERIAL
 	tristate "Multi-IO cards (parallel and serial)"
 	depends on SERIAL_8250_PCI && PARPORT_PC && PCI



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Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha
Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
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On Tuesday 14 June 2011 21:08:50 Ralf Baechle wrote:

> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 9adc278..2968751f 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -21,6 +21,7 @@ config ARM
>  	select HAVE_KERNEL_LZO
>  	select HAVE_KERNEL_LZMA
>  	select HAVE_IRQ_WORK
> +	select HAVE_PC_PARPORT
>  	select HAVE_PERF_EVENTS
>  	select PERF_USE_VMALLOC
>  	select HAVE_REGS_AND_STACK_ACCESS_API

On arm that should only be set on a couple of subarchitectures, but
we can fan that out after your patch goes in, just like you do for Mips

> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index 2729c66..b8328df 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -128,6 +128,7 @@ config PPC
>  	select HAVE_REGS_AND_STACK_ACCESS_API
>  	select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
>  	select HAVE_GENERIC_HARDIRQS
> +	select HAVE_PC_PARPORT
>  	select HAVE_SPARSE_IRQ
>  	select IRQ_PER_CPU
>  	select GENERIC_IRQ_SHOW

Similar to ARM and Mips.

> index e446bab..ceac9b5 100644
> --- a/arch/microblaze/Kconfig
> +++ b/arch/microblaze/Kconfig
> @@ -15,6 +15,7 @@ config MICROBLAZE
>  	select OF
>  	select OF_EARLY_FLATTREE
>  	select HAVE_GENERIC_HARDIRQS
> +	select HAVE_PC_PARPORT
>  	select GENERIC_IRQ_PROBE
>  	select GENERIC_IRQ_SHOW
>  

Highly unlikely, except through PCI.

> diff --git a/arch/score/Kconfig b/arch/score/Kconfig
> index 288add8..ba078d0 100644
> --- a/arch/score/Kconfig
> +++ b/arch/score/Kconfig
> @@ -1,9 +1,10 @@
>  menu "Machine selection"
>  
>  config SCORE
> -       def_bool y
> -       select HAVE_GENERIC_HARDIRQS
> -       select GENERIC_IRQ_SHOW
> +	def_bool y
> +	select HAVE_GENERIC_HARDIRQS
> +	select HAVE_PC_PARPORT
> +	select GENERIC_IRQ_SHOW
>  
>  choice
>  	prompt "System type"

Certainly not, no PIO support

> diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
> index 0249b8b..3e96eff 100644
> --- a/arch/tile/Kconfig
> +++ b/arch/tile/Kconfig
> @@ -8,6 +8,7 @@ config TILE
>  	select USE_GENERIC_SMP_HELPERS
>  	select CC_OPTIMIZE_FOR_SIZE
>  	select HAVE_GENERIC_HARDIRQS
> +	select HAVE_PC_PARPORT
>  	select GENERIC_IRQ_PROBE
>  	select GENERIC_PENDING_IRQ if SMP
>  	select GENERIC_IRQ_SHOW

Only through PCI

> diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
> index e57dcce..3832e7e 100644
> --- a/arch/unicore32/Kconfig
> +++ b/arch/unicore32/Kconfig
> @@ -8,6 +8,7 @@ config UNICORE32
>  	select HAVE_KERNEL_BZIP2
>  	select HAVE_KERNEL_LZO
>  	select HAVE_KERNEL_LZMA
> +	select HAVE_PC_PARPORT
>  	select GENERIC_FIND_FIRST_BIT
>  	select GENERIC_IRQ_PROBE
>  	select GENERIC_IRQ_SHOW

Probably not.

I think you can leave these four out right away, provided you add
the section below:

> --- a/drivers/parport/Kconfig
> +++ b/drivers/parport/Kconfig
> @@ -35,8 +35,7 @@ if PARPORT
> 
>  config PARPORT_PC
>  
>         tristate "PC-style hardware"
> 
> -       depends on (!SPARC64 || PCI) && !SPARC32 && !M32R && !FRV && \
> -               (!M68K || ISA) && !MN10300 && !AVR32 && !BLACKFIN
> +       depends on HAVE_PC_PARPORT
> 
>         ---help---
>         
>           You should say Y here if you have a PC-style parallel port. All
>           IBM PC compatible computers and some Alphas have PC-style
> 
> @@ -48,6 +47,9 @@ config PARPORT_PC
> 
>           If unsure, say Y.
> 
> +config HAVE_PC_PARPORT
> +       bool
> +

As you write, anything that has PCI can theoretically take parallel ports,
so I would always list PCI here as a way to get it anyway. Probably also
ISA and PCMCIA. How about adding this?

config HAVE_PC_PARPORT
	bool
	default (PCI || ISA || PCMCIA)

	Arnd

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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.sparc,gmane.linux.uclinux.microblaze,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
Date: Tue, 14 Jun 2011 13:25:46 -0700
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To: Ralf Baechle <ralf@linux-mips.org>
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On 06/14/2011 12:08 PM, Ralf Baechle wrote:
> The PC parallel port Kconfig as acquired one of those messy terms to
> describe it's architecture dependencies:
> 
>        depends on (!SPARC64 || PCI) && !SPARC32 && !M32R && !FRV && \
>                (!M68K || ISA) && !MN10300 && !AVR32 && !BLACKFIN
> 
> This isn't just ugly - it also almost certainly describes the dependencies
> too coarse grainedly.  This is an attempt at cleaing the mess up.
> 
> I tried to faithfully aproximate the old behaviour but the existing
> behaviour seems inacurate if not wrong for some architectures or platforms.
> To improve on this I rely on comments from other arch and platforms
> maintainers.  Any system that can take PCI multi-IO card or has a PC-style
> parallel port on the mainboard should probably should now do a
> select HAVE_PC_PARPORT.  And some arch Kconfig files should further
> restrict the use of HAVE_PC_PARPORT to only those platforms that actually
> need it.
> 

Why on earth restrict it like that?  It's just a device driver, like
more or less any other device driver...

	-hpa



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Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
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Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
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On Tuesday 14 June 2011 22:25:46 H. Peter Anvin wrote:
> On 06/14/2011 12:08 PM, Ralf Baechle wrote:
> > The PC parallel port Kconfig as acquired one of those messy terms to
> > describe it's architecture dependencies:
> > 
> >        depends on (!SPARC64 || PCI) && !SPARC32 && !M32R && !FRV && \
> >                (!M68K || ISA) && !MN10300 && !AVR32 && !BLACKFIN
> > 
> > This isn't just ugly - it also almost certainly describes the dependencies
> > too coarse grainedly.  This is an attempt at cleaing the mess up.
> > 
> > I tried to faithfully aproximate the old behaviour but the existing
> > behaviour seems inacurate if not wrong for some architectures or platforms.
> > To improve on this I rely on comments from other arch and platforms
> > maintainers.  Any system that can take PCI multi-IO card or has a PC-style
> > parallel port on the mainboard should probably should now do a
> > select HAVE_PC_PARPORT.  And some arch Kconfig files should further
> > restrict the use of HAVE_PC_PARPORT to only those platforms that actually
> > need it.
> > 
> 
> Why on earth restrict it like that?  It's just a device driver, like
> more or less any other device driver...

I'd say any other classic ISA/PC driver, including floppy, gameport or
serial-8250. One problem with these is that we never fully worked out
the dependencies for these, which we probably should. CONFIG_ISA
generally means ISA add-on cards, but that might not be enabled for
platforms that have a pc-parport but no ISA slots.

On the other hand, you have embedded platforms that currently build support
for parport-pc but define the inb/outb macros to plain pointer dereferences
(otherwise you can't build the 8250 driver). Loading parport-pc on those
machines typically results in derefencing user memory in the best case.

What I'd love to see is a configuration option for "arch has working
PC-style inb/outb instructions", so we can build a kernel without them but
still get MMIO based drivers for PCI-less platforms.

	Arnd

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Subject: RE: [RFC,PATCH] Cleanup PC parallel port Kconfig
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Thread-Topic: [RFC,PATCH] Cleanup PC parallel port Kconfig
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diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 38280ef..849805a 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -23,6 +23,7 @@ config IA64
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_DMA_API_DEBUG
 	select HAVE_GENERIC_HARDIRQS
+	select HAVE_PC_PARPORT
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PENDING_IRQ if SMP
 	select IRQ_PER_CPU

I took a look at the back of all my ia64 systems - none of them
have a parallel port.  It seems unlikely that new systems will
start adding parallel ports :-)

So even if I had a printer (or other device) that used a parallel
port, I have no way to test it.

-Tony

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Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
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On Tue, Jun 14, 2011 at 01:25:46PM -0700, H. Peter Anvin wrote:

> On 06/14/2011 12:08 PM, Ralf Baechle wrote:
> > The PC parallel port Kconfig as acquired one of those messy terms to
> > describe it's architecture dependencies:
> > 
> >        depends on (!SPARC64 || PCI) && !SPARC32 && !M32R && !FRV && \
> >                (!M68K || ISA) && !MN10300 && !AVR32 && !BLACKFIN
> > 
> > This isn't just ugly - it also almost certainly describes the dependencies
> > too coarse grainedly.  This is an attempt at cleaing the mess up.
> > 
> > I tried to faithfully aproximate the old behaviour but the existing
> > behaviour seems inacurate if not wrong for some architectures or platforms.
> > To improve on this I rely on comments from other arch and platforms
> > maintainers.  Any system that can take PCI multi-IO card or has a PC-style
> > parallel port on the mainboard should probably should now do a
> > select HAVE_PC_PARPORT.  And some arch Kconfig files should further
> > restrict the use of HAVE_PC_PARPORT to only those platforms that actually
> > need it.
> > 
> 
> Why on earth restrict it like that?  It's just a device driver, like
> more or less any other device driver...

Some of the older MIPS systems are based on PC chipsets from Intel, OPTi
or others.  On those you can expect the parport_pc driver to actually work.
The ISA/PCI implementations are often between lackluster and pure brokeness
such as with non-functioning I/O port address space.  So I don't want to
run such drivers on such a platforms, things might turn ugly.

Embedded systems often have PCI but no PCI slots or there may even be an
apropriate SuperIO chip in the the system but nothing wired to the parallel
port bits.

And there are systems such as DECstations which have nothing that even
at a parsec's distance has a similarity to (E)ISA or PCI - but still
PARPORT_PC is offered along with 40 other options that depend on it.

There is no point in offering to build something that couldn't possibly be
used.  It just makes the kernel harder to configure and inflates the test
matrix for no good reason.

  Ralf

From - Thu Nov 08 21:07:22 2018
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Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
Date: Wed, 15 Jun 2011 09:24:06 +0800
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To: Ralf Baechle <ralf@linux-mips.org>
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On Tue, 2011-06-14 at 20:08 +0100, Ralf Baechle wrote:
> The PC parallel port Kconfig as acquired one of those messy terms to
> describe it's architecture dependencies:
> 
>        depends on (!SPARC64 || PCI) && !SPARC32 && !M32R && !FRV && \
>                (!M68K || ISA) && !MN10300 && !AVR32 && !BLACKFIN
> 
> This isn't just ugly - it also almost certainly describes the dependencies
> too coarse grainedly.  This is an attempt at cleaing the mess up.
> 
> I tried to faithfully aproximate the old behaviour but the existing
> behaviour seems inacurate if not wrong for some architectures or platforms.
> To improve on this I rely on comments from other arch and platforms
> maintainers.  Any system that can take PCI multi-IO card or has a PC-style
> parallel port on the mainboard should probably should now do a
> select HAVE_PC_PARPORT.  And some arch Kconfig files should further
> restrict the use of HAVE_PC_PARPORT to only those platforms that actually
> need it.
> 
> Thanks,
> 
>   Ralf

> diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
> index e57dcce..3832e7e 100644
> --- a/arch/unicore32/Kconfig
> +++ b/arch/unicore32/Kconfig
> @@ -8,6 +8,7 @@ config UNICORE32
>  	select HAVE_KERNEL_BZIP2
>  	select HAVE_KERNEL_LZO
>  	select HAVE_KERNEL_LZMA
> +	select HAVE_PC_PARPORT
>  	select GENERIC_FIND_FIRST_BIT
>  	select GENERIC_IRQ_PROBE
>  	select GENERIC_IRQ_SHOW
In UniCore32, only some debug-boards need to support parport.
So I'd like to add HAVE_PC_PARPORT and related configs to certian
*_defconfig, but not in Kconfig.

Thanks Ralf.

Guan Xuetao






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Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
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To: Ralf Baechle <ralf@linux-mips.org>
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On 06/14/2011 03:34 PM, Ralf Baechle wrote:
> 
> There is no point in offering to build something that couldn't possibly be
> used.  It just makes the kernel harder to configure and inflates the test
> matrix for no good reason.
> 

I see... that's why a bunch of devices that only exist on ARM and MIPS
SoCs are offered on x86 platforms?

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.




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Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
Date: Tue, 14 Jun 2011 21:30:47 -0700
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To: Arnd Bergmann <arnd@arndb.de>
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On 06/14/2011 02:33 PM, Arnd Bergmann wrote:
>>
>> Why on earth restrict it like that?  It's just a device driver, like
>> more or less any other device driver...
> 
> I'd say any other classic ISA/PC driver, including floppy, gameport or
> serial-8250. One problem with these is that we never fully worked out
> the dependencies for these, which we probably should. CONFIG_ISA
> generally means ISA add-on cards, but that might not be enabled for
> platforms that have a pc-parport but no ISA slots.
> 

OK, serial-8250 is clearly just plain wrong, since the 8250 series UARTs
are ubiquitous across just about every platform.

Floppy is special (in the short bus sense), since it is closely tied to
ISA DMA.  Conditionalizing this on ISA DMA makes total sense.

Parallel port is an intermediate case... Centronics parallel ports
predate the PC ecosystem by quite a bit, and the particular arrangement
of ports became popular with the PC and spread to other platforms, but
the particular variant of it known as ECP (as opposed to EPP) is ISA DMA
specific.

> On the other hand, you have embedded platforms that currently build support
> for parport-pc but define the inb/outb macros to plain pointer dereferences
> (otherwise you can't build the 8250 driver). Loading parport-pc on those
> machines typically results in derefencing user memory in the best case.
>
> What I'd love to see is a configuration option for "arch has working
> PC-style inb/outb instructions", so we can build a kernel without them but
> still get MMIO based drivers for PCI-less platforms.

Now, isn't that was iowrite/ioread was designed for?

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
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	"linux-m68k@vger.kernel.org" <linux-m68k@vger.kernel.org>,
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	"sparclinux@vger.kernel.org" <sparclinux@vger.kernel.org>,
	Guan Xuetao <gxt@mprc.pku.edu.cn>, Lennox Wu <lennox.wu@gmail.com>,
	"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
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	Ingo Molnar <mingo@redhat.com>, Geert Uytterhoeven <geert@linux-m68k.org>,
	Matt Turner <mattst88@gmai
To: "Luck, Tony" <tony.luck@intel.com>
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On 06/14/2011 03:08 PM, Luck, Tony wrote:
> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
> index 38280ef..849805a 100644
> --- a/arch/ia64/Kconfig
> +++ b/arch/ia64/Kconfig
> @@ -23,6 +23,7 @@ config IA64
>  	select HAVE_ARCH_TRACEHOOK
>  	select HAVE_DMA_API_DEBUG
>  	select HAVE_GENERIC_HARDIRQS
> +	select HAVE_PC_PARPORT
>  	select GENERIC_IRQ_PROBE
>  	select GENERIC_PENDING_IRQ if SMP
>  	select IRQ_PER_CPU
> 
> I took a look at the back of all my ia64 systems - none of them
> have a parallel port.  It seems unlikely that new systems will
> start adding parallel ports :-)
> 
> So even if I had a printer (or other device) that used a parallel
> port, I have no way to test it.
> 

If it has PCI slots, it can have a parallel port.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.sparc,gmane.linux.uclinux.microblaze,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
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To: "H. Peter Anvin" <hpa@zytor.com>
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On Wed, Jun 15, 2011 at 12:18:36AM -0400, H. Peter Anvin wrote:
> On 06/14/2011 03:34 PM, Ralf Baechle wrote:
> > 
> > There is no point in offering to build something that couldn't possibly be
> > used.  It just makes the kernel harder to configure and inflates the test
> > matrix for no good reason.
> > 
> 
> I see... that's why a bunch of devices that only exist on ARM and MIPS
> SoCs are offered on x86 platforms?
> 
http://en.wikipedia.org/wiki/Two_wrongs_make_a_right

Guenter



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From: "H. Peter Anvin" <hpa@zytor.com>
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Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
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To: Guenter Roeck <guenter.roeck@ericsson.com>
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On 06/14/2011 09:40 PM, Guenter Roeck wrote:
> On Wed, Jun 15, 2011 at 12:18:36AM -0400, H. Peter Anvin wrote:
>> On 06/14/2011 03:34 PM, Ralf Baechle wrote:
>>>
>>> There is no point in offering to build something that couldn't possibly be
>>> used.  It just makes the kernel harder to configure and inflates the test
>>> matrix for no good reason.
>>>
>>
>> I see... that's why a bunch of devices that only exist on ARM and MIPS
>> SoCs are offered on x86 platforms?
>>
> http://en.wikipedia.org/wiki/Two_wrongs_make_a_right
> 

Except in this case it's not wrong.  It was done that way because it was
discovered a long time ago that restricting drivers that were not
*inherently* limited to specific platform just resulted in more bitrot
and nasty surprises for the users who *did* need specific things after
all, even though the maintainers had not thought so.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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From: Russell King - ARM Linux <linux@arm.linux.org.uk>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
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	Guan Xuetao <gxt@mprc.pku.edu.cn>, Lennox Wu <lennox.wu@gmail.com>,
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To: "H. Peter Anvin" <hpa@zytor.com>
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On Tue, Jun 14, 2011 at 09:31:27PM -0700, H. Peter Anvin wrote:
> On 06/14/2011 03:08 PM, Luck, Tony wrote:
> > I took a look at the back of all my ia64 systems - none of them
> > have a parallel port.  It seems unlikely that new systems will
> > start adding parallel ports :-)
> > 
> > So even if I had a printer (or other device) that used a parallel
> > port, I have no way to test it.
> 
> If it has PCI slots, it can have a parallel port.

Is that a clue about where a select statement should be?

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Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
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To: "H. Peter Anvin" <hpa@zytor.com>
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On Tue, Jun 14, 2011 at 09:30:47PM -0700, H. Peter Anvin wrote:
> On 06/14/2011 02:33 PM, Arnd Bergmann wrote:
> >>
> >> Why on earth restrict it like that?  It's just a device driver, like
> >> more or less any other device driver...
> > 
> > I'd say any other classic ISA/PC driver, including floppy, gameport or
> > serial-8250. One problem with these is that we never fully worked out
> > the dependencies for these, which we probably should. CONFIG_ISA
> > generally means ISA add-on cards, but that might not be enabled for
> > platforms that have a pc-parport but no ISA slots.
> > 
> 
> OK, serial-8250 is clearly just plain wrong, since the 8250 series UARTs
> are ubiquitous across just about every platform.
> 
> Floppy is special (in the short bus sense), since it is closely tied to
> ISA DMA.  Conditionalizing this on ISA DMA makes total sense.

No it doesn't.  It depends on the ISA DMA API, not that the machine has
ISA DMA.

I have a platform which has no ISA DMA but uses the floppy driver.  Please
don't break it.

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From: Lennox Wu <lennox.wu@gmail.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.sparc,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.uclinux.microblaze,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel
Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
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2011/6/15 Arnd Bergmann <arnd@arndb.de>
>
> >  config SCORE
> > -       def_bool y
> > -       select HAVE_GENERIC_HARDIRQS
> > -       select GENERIC_IRQ_SHOW
> > +     def_bool y
> > +     select HAVE_GENERIC_HARDIRQS
> > +     select HAVE_PC_PARPORT
> > +     select GENERIC_IRQ_SHOW
> >
> >  choice
> >       prompt "System type"
>
> Certainly not, no PIO support
>
>  Yes, there is no platform of the Score supports PIO.
Best,
Lennox

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<br><br><div class=3D"gmail_quote">2011/6/15 Arnd Bergmann <span dir=3D"ltr=
">&lt;<a href=3D"mailto:arnd@arndb.de">arnd@arndb.de</a>&gt;</span><blockqu=
ote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc s=
olid;padding-left:1ex;">
<div class=3D"im">
&gt; =A0config SCORE<br>
&gt; - =A0 =A0 =A0 def_bool y<br>
&gt; - =A0 =A0 =A0 select HAVE_GENERIC_HARDIRQS<br>
&gt; - =A0 =A0 =A0 select GENERIC_IRQ_SHOW<br>
&gt; + =A0 =A0 def_bool y<br>
&gt; + =A0 =A0 select HAVE_GENERIC_HARDIRQS<br>
&gt; + =A0 =A0 select HAVE_PC_PARPORT<br>
&gt; + =A0 =A0 select GENERIC_IRQ_SHOW<br>
&gt;<br>
&gt; =A0choice<br>
&gt; =A0 =A0 =A0 prompt &quot;System type&quot;<br>
<br>
</div>Certainly not, no PIO support<br>
<div class=3D"im"><br></div></blockquote><div>=A0Yes, there is no platform =
of the Score supports PIO.</div><div>Best,</div><div>Lennox</div></div>

--0016364ecb745fc9a204a5bb94b9--



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Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
Date: Wed, 15 Jun 2011 09:34:37 +0100
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To: "H. Peter Anvin" <hpa@zytor.com>
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On Tue, Jun 14, 2011 at 09:18:36PM -0700, H. Peter Anvin wrote:

> On 06/14/2011 03:34 PM, Ralf Baechle wrote:
> > 
> > There is no point in offering to build something that couldn't possibly be
> > used.  It just makes the kernel harder to configure and inflates the test
> > matrix for no good reason.
> > 
> 
> I see... that's why a bunch of devices that only exist on ARM and MIPS
> SoCs are offered on x86 platforms?

Well, if you notice one of those, yell.  Or send patches.  Most of those
have been fixed.

  Ralf



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Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
Date: Wed, 15 Jun 2011 11:46:13 +0200
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To: "H. Peter Anvin" <hpa@zytor.com>
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On Wednesday 15 June 2011, H. Peter Anvin wrote:
> On 06/14/2011 02:33 PM, Arnd Bergmann wrote:
> >>
> >> Why on earth restrict it like that?  It's just a device driver, like
> >> more or less any other device driver...
> > 
> > I'd say any other classic ISA/PC driver, including floppy, gameport or
> > serial-8250. One problem with these is that we never fully worked out
> > the dependencies for these, which we probably should. CONFIG_ISA
> > generally means ISA add-on cards, but that might not be enabled for
> > platforms that have a pc-parport but no ISA slots.
> > 
> 
> OK, serial-8250 is clearly just plain wrong, since the 8250 series UARTs
> are ubiquitous across just about every platform.

Obviously you want to support 8250 uarts with MMIO on most architectures,
but the driver can only be built if you define both MMIO and PIO 
accessors (readb and outb). I would like to make the PIO part of 8250
conditional on having PIO support so that an architecture that doesn't
support this no longer has to provide fake accessor functions.

> Parallel port is an intermediate case... Centronics parallel ports
> predate the PC ecosystem by quite a bit, and the particular arrangement
> of ports became popular with the PC and spread to other platforms, but
> the particular variant of it known as ECP (as opposed to EPP) is ISA DMA
> specific.

The driver looks like it can easily be built without support for the ISA DMA
API.

> > On the other hand, you have embedded platforms that currently build support
> > for parport-pc but define the inb/outb macros to plain pointer dereferences
> > (otherwise you can't build the 8250 driver). Loading parport-pc on those
> > machines typically results in derefencing user memory in the best case.
> >
> > What I'd love to see is a configuration option for "arch has working
> > PC-style inb/outb instructions", so we can build a kernel without them but
> > still get MMIO based drivers for PCI-less platforms.
> 
> Now, isn't that was iowrite/ioread was designed for?

Yes, it just isn't used consistently. As far as I can tell, this is for multiple
number of reasons:

* In case of 8250, the driver abstracts the difference between PIO and MMIO itself,
  because it uses the same method to do indirect accesses and different strides.
  Using ioread wouldn't really make the driver much simpler.

* For parport-pc, the driver really only needs PIO, we don't even
  try to support the same device on random MMIO addresses, and that might not
  be necessary.

* In case of floppies, the "solution" was to write a driver for every platform that
  doesn't have PIO, since they tend to have other differences. The amiflop and
  ataflop drivers are not even use readb(), they just derefence volatile pointers
  to do MMIO. I doubt we can find volunteers to clean that up.

	Arnd

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Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
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From: Guenter Roeck <guenter.roeck@ericsson.com>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
Date: Wed, 15 Jun 2011 07:36:34 -0700
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To: Ralf Baechle <ralf@linux-mips.org>
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On Wed, Jun 15, 2011 at 04:34:37AM -0400, Ralf Baechle wrote:
> On Tue, Jun 14, 2011 at 09:18:36PM -0700, H. Peter Anvin wrote:
> 
> > On 06/14/2011 03:34 PM, Ralf Baechle wrote:
> > > 
> > > There is no point in offering to build something that couldn't possibly be
> > > used.  It just makes the kernel harder to configure and inflates the test
> > > matrix for no good reason.
> > > 
> > 
> > I see... that's why a bunch of devices that only exist on ARM and MIPS
> > SoCs are offered on x86 platforms?
> 
> Well, if you notice one of those, yell.  Or send patches.  Most of those
> have been fixed.
> 
I think he was being sarcastic, and wanted to say that it should be that way.

Guenter

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Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.uclinux.microblaze,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha
Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
Date: Wed, 15 Jun 2011 08:08:05 -0700
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	linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
	Chen Liqin <liqin.chen@sunplusct.com>,
	Paul Mackerras <paulus@samba.org>, sparclinux@vger.kernel.org,
	Guan Xuetao <gxt@mprc.pku.edu.cn>,
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	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On 06/15/2011 12:47 AM, Russell King - ARM Linux wrote:
>>
>> OK, serial-8250 is clearly just plain wrong, since the 8250 series UARTs
>> are ubiquitous across just about every platform.
>>
>> Floppy is special (in the short bus sense), since it is closely tied to
>> ISA DMA.  Conditionalizing this on ISA DMA makes total sense.
> 
> No it doesn't.  It depends on the ISA DMA API, not that the machine has
> ISA DMA.
> 
> I have a platform which has no ISA DMA but uses the floppy driver.  Please
> don't break it.

OK, even more case in point, then.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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From: "H. Peter Anvin" <hpa@zytor.com>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC,PATCH] Cleanup PC parallel port Kconfig
Date: Wed, 15 Jun 2011 08:16:37 -0700
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Cc: "linux-mips@linux-mips.org" <linux-mips@linux-mips.org>,
	"linux-m68k@vger.kernel.org" <linux-m68k@vger.kernel.org>,
	"linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>,
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	Helge Deller <deller@gmx.de>, "x86@kernel.org" <x86@kernel.org>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Ingo Molnar <mingo@redhat.com>, Geert Uytterhoeven <geert@linux-m68k.org>,
	Matt Turner <mattst88@gmail.com>, "Yu, Fenghua" <fenghua.yu@intel.
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On 06/15/2011 12:39 AM, Russell King - ARM Linux wrote:
> On Tue, Jun 14, 2011 at 09:31:27PM -0700, H. Peter Anvin wrote:
>> On 06/14/2011 03:08 PM, Luck, Tony wrote:
>>> I took a look at the back of all my ia64 systems - none of them
>>> have a parallel port.  It seems unlikely that new systems will
>>> start adding parallel ports :-)
>>>
>>> So even if I had a printer (or other device) that used a parallel
>>> port, I have no way to test it.
>>
>> If it has PCI slots, it can have a parallel port.
> 
> Is that a clue about where a select statement should be?

Not really, because it's a sufficient condition, not a required one.

All a platform needs to expose a PC-style parallel port interface is a
minimum of 3 contiguous I/O locations, and although in the PC they are
I/O mapped, they don't need to be.

The basic (SPP) parallel port interface is really just a glorified set
of GPIOs and could at least in theory be implemented as-is on any
platform with contiguous GPIO ports.  The faster modes (EPP and ECP) do
contain logic, and ECP depends on the ISA DMA API (thanks to Russell for
pointing out that actual ISA DMA is not required, any slave DMA solution
will do.)


	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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To: "H. Peter Anvin" <hpa@zytor.com>
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On Wed, Jun 15, 2011 at 08:08:05AM -0700, H. Peter Anvin wrote:
> On 06/15/2011 12:47 AM, Russell King - ARM Linux wrote:
> >>
> >> OK, serial-8250 is clearly just plain wrong, since the 8250 series UARTs
> >> are ubiquitous across just about every platform.
> >>
> >> Floppy is special (in the short bus sense), since it is closely tied to
> >> ISA DMA.  Conditionalizing this on ISA DMA makes total sense.
> > 
> > No it doesn't.  It depends on the ISA DMA API, not that the machine has
> > ISA DMA.
> > 
> > I have a platform which has no ISA DMA but uses the floppy driver.  Please
> > don't break it.
> 
> OK, even more case in point, then.

It's already been solved - ARCH_MAY_HAVE_PC_FDC is supposed to be
defined to y in the cases where architectures have support for it.

What we do on ARM for example is:

config ARCH_MAY_HAVE_PC_FDC
        bool

and then select that symbol for our platforms which can have the
floppy driver.

And in any case we already have definitions for the presence of the
ISA DMA API vs the common ISA DMA helpers in kernel/.  The presence
of the ISA DMA API is given by CONFIG_ISA_DMA_API, while the
ISA DMA helper CONFIG_GENERIC_ISA_DMA.

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On Sun, 19 Jun 2011, John David Anglin wrote:

> I suspect a race in interrupt handling.  Note the SLOW timer message
> associated with gnat1 process on cpu0.  Also, cpu0 doesn't seem active.

Specifically, do the cpu_mask_irq and __cpu_unmask_irq operations
on cpu_eiem need to be atomic?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Ralf Baechle <ralf@linux-mips.org>
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Subject: Re: [RFC 54/72] au1000_eth/mipsnet/tc35815: Move the MIPS drivers
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Cc: davem@davemloft.net, netdev@vger.kernel.org,
	Matt Porter <mporter@kernel.crashing.org>,
	Herbert Valerio Riedel <hvr@gnu.org>,
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To: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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On Sat, Jun 25, 2011 at 06:59:05AM -0700, Jeff Kirsher wrote:

> Move the MIPS drivers into drivers/net/ethernet/mips/ and
> make the necessary Kconfig and Makefile changes.

NAck.

sni_82596.c is a driver for the same chip but used in particular Siemens-
Nixdorf systems.  Lasi_82596 is an Intel NIC being used in PARISC systems.
Not a good reason th throw PA-RISC drivers into the same directory after
all PA-RISC has no relation to MIPS at all.  So maybe they should go into
drivers/net/ethernet/i82596 or drivers/net/ethernet/intel.  And wherever
they go, both drivers #include lib82596.c which your patch did not move
around.

It seems that lp486e should probably go into the same directory and I
suspect ni52 and sun3_82586 are close enough that they should also in
the faint hope that somebody will factor out the common code.

MIPSnet is a driver for the emulated network card of MIPSsim, a software
simulator by MIPS Technologies and the only net thingy in your patch that
truely is "MIPS".

The remaining happen to be used by particular systems that happen to be
based on a MIPS processor but there is no technial communality.  MIPS is
a processor architecture - not a system architecture and grouping things
by processor architecture hasn't worked so well imho for other things in
the past, see for example sound.

If we're already moving things around maybe au1000_net.[ch] can be renamed
to alchemy.[ch].

Your patch moves the Makefile and Kconfig bits of lantiq_etop but doesn't
move the actual lantiq_etop.c driver.

> +++ b/drivers/net/ethernet/mips/Kconfig
> @@ -0,0 +1,61 @@
> +#
> +# MIPS device configuration
> +#
> +
> +config NET_MIPS
> +	bool "MIPS/PS-RISC devices"

It's speeled PA-RISC.

  Ralf
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Subject: Re: [RFC 54/72] au1000_eth/mipsnet/tc35815: Move the MIPS drivers
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On Sat, 2011-06-25 at 09:13 -0700, Ralf Baechle wrote:
> On Sat, Jun 25, 2011 at 06:59:05AM -0700, Jeff Kirsher wrote:
>=20
> > Move the MIPS drivers into drivers/net/ethernet/mips/ and
> > make the necessary Kconfig and Makefile changes.
>=20
> NAck.
>=20
> sni_82596.c is a driver for the same chip but used in particular
> Siemens-
> Nixdorf systems.  Lasi_82596 is an Intel NIC being used in PARISC
> systems.
> Not a good reason th throw PA-RISC drivers into the same directory
> after
> all PA-RISC has no relation to MIPS at all.  So maybe they should go
> into
> drivers/net/ethernet/i82596 or drivers/net/ethernet/intel.  And
> wherever
> they go, both drivers #include lib82596.c which your patch did not
> move
> around.=20

My bad, I had grouped these drivers because they both used lib82596.c
and had thought I had moved that file as well.

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Subject: IFUNC* support?
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Dave,

Have you played with any of the indirect function support in the tools yet?

Recent changes by Dave Miller have forced me to look into supporting IFUNC*.

It looks relatively easy, I was just wondering if there was anything I
should watch out for on the compiler side?

Cheers,
CArlos.
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> Have you played with any of the indirect function support in the tools yet?
> 
> Recent changes by Dave Miller have forced me to look into supporting IFUNC*.
> 
> It looks relatively easy, I was just wondering if there was anything I
> should watch out for on the compiler side?

I'm not familiar with this.  I did a quick scan and it doesn't seem
that any GCC backends do anything special wrt IFUNC_ASM_TYPE.  There
is an ifunc attribute which is used to mark a function with the
STT_GNU_IFUNC symbol type.  So, I think support is mainly in binutils.

Dave
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Rolf Eike Beer wrote:
> Am Freitag, 18. M=E4rz 2011, 17:39:57 schrieb Rolf Eike Beer:
> > Am Mittwoch, 2. M=E4rz 2011, 21:19:24 schrieb Jesse Brandeburg:
> > > On Mon, Feb 28, 2011 at 5:40 AM, Guy Martin <gmsoft@tuxicoman.be>=
 wrote:
> > > > Hi Jeff,
> > > >=20
> > > > Any luck getting this into mainline ?
> > >=20
> > > Hi Guy, sorry for the delay,
> > > We haven't been able to get our contacts in HP to give us a decen=
t
> > > response so far, we are following up with them to see whats up.  =
We
> > > have not lost the patch and are still tracking it internally.
> > >=20
> > > Give us a couple more weeks if that is okay and we should be able=
 to
> > > settle this by then.
> >=20
> > I wonder what exactly you are waiting for? This is a sanity check t=
hat
> > we
> > disable, so no working systems could get broken by this. And every
> > single
> > C8000 seems to be affected by this and is working fine with that pa=
tch.
> > So maybe people at HP might have a clue _why_ this is screwed, but
> > until then I don't see any point in waiting.
> >=20
> > So please just add my tested-by and push this upstream soon. Since =
this
> > is basically a hardware quirk I would like to get this into stable =
also
> > so we may run vanilla 2.6.38.1 or something like that on C8000.
> >=20
> > Tested-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
>=20
> For the netdev folks: it's this patch we are talking about
>=20
> http://www.spinics.net/lists/linux-parisc/msg03091.html
>=20
> I would love to see that someone finally picks this up and pushes thi=
s
> upstream, CC stable. This is absolutely annoying as it breaks every t=
ime
> anyone touches the kernel on one of this machines.
>=20
> Jeff, David, James: can you please make a decision of who takes this =
and
> then just do it?

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From: Matt Turner <mattst88@gmail.com>
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Subject: Re: [PATCH] e1000: Allow the driver to be used on PA
 RISC C8000 workstation
Date: Mon, 27 Jun 2011 15:33:43 -0400
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Xref: news.gmane.org gmane.linux.drivers.e1000.devel:8615 gmane.linux.ports.parisc:3818 gmane.linux.network:199938
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On Mon, Jun 27, 2011 at 2:42 PM, Rolf Eike Beer <eike-kernel@sf-tec.de> wro=
te:
> Rolf Eike Beer wrote:
>> Am Freitag, 18. M=E4rz 2011, 17:39:57 schrieb Rolf Eike Beer:
>> > Am Mittwoch, 2. M=E4rz 2011, 21:19:24 schrieb Jesse Brandeburg:
>> > > On Mon, Feb 28, 2011 at 5:40 AM, Guy Martin <gmsoft@tuxicoman.be> wr=
ote:
>> > > > Hi Jeff,
>> > > >
>> > > > Any luck getting this into mainline ?
>> > >
>> > > Hi Guy, sorry for the delay,
>> > > We haven't been able to get our contacts in HP to give us a decent
>> > > response so far, we are following up with them to see whats up. =A0We
>> > > have not lost the patch and are still tracking it internally.
>> > >
>> > > Give us a couple more weeks if that is okay and we should be able to
>> > > settle this by then.
>> >
>> > I wonder what exactly you are waiting for? This is a sanity check that
>> > we
>> > disable, so no working systems could get broken by this. And every
>> > single
>> > C8000 seems to be affected by this and is working fine with that patch.
>> > So maybe people at HP might have a clue _why_ this is screwed, but
>> > until then I don't see any point in waiting.
>> >
>> > So please just add my tested-by and push this upstream soon. Since this
>> > is basically a hardware quirk I would like to get this into stable also
>> > so we may run vanilla 2.6.38.1 or something like that on C8000.
>> >
>> > Tested-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
>>
>> For the netdev folks: it's this patch we are talking about
>>
>> http://www.spinics.net/lists/linux-parisc/msg03091.html
>>
>> I would love to see that someone finally picks this up and pushes this
>> upstream, CC stable. This is absolutely annoying as it breaks every time
>> anyone touches the kernel on one of this machines.
>>
>> Jeff, David, James: can you please make a decision of who takes this and
>> then just do it?
>
> Ping?

Ping indeed. Waiting as if HP is going to say "yes, we fucked that up.
Go ahead with the patch." is silly.

---------------------------------------------------------------------------=
---
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threats, fraudulent activity, and more. Splunk takes this data and makes =

sense of it. IT sense. And common sense.
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_______________________________________________
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E1000-devel@lists.sourceforge.net
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m/community/wired


From - Thu Nov 08 21:07:24 2018
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From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] fix backtrace on PA-RISC
Date: Wed, 29 Jun 2011 00:48:19 +0200 (CEST)
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Cc: linux-parisc@vger.kernel.org,
	John David Anglin <dave@hiauly1.hia.nrc.ca>
To: "James E.J. Bottomley" <jejb@parisc-linux.org>
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Hi

This patch fixes frame unwind on PA-RISC.

Prior to the patch, stack backtraces often caused crashes and this 
resulted in recursive page faults.

Mikulas

---

This patch fixes backtrace on PA-RISC

There were several problems:

1) The code that decodes instructions handles instructions that subtract
from the stack pointer incorrectly. If the instruction subtracts the number X
from the stack pointer the code increases the frame size by (0x100000000-X).
This results in invalid accesses to memory and recursive page faults.

2) Becuase gcc reorders blocks, handling instructions that subtract from the
frame pointer is incorrect. For example, this function
"int f(int a)
{
	if (__builtin_expect(a, 1))
		return a;
	g();
	return a;
}"
is compiled in such a way, that the code that decreases the stack pointer for
the first "return a" is placed before the code for "g" call. If we recognize
this decrement, we mistakenly believe that the frame size for the "g" call
is zero.

To fix problems 1) and 2), the patch doesn't recognize instructions that
decrease the stack pointer at all. To further safeguard the unwind code
against nonsense values, we don't allow frame size larger than
Total_frame_size.

3) The backtrace is not locked. If stack dump races with module unload,
invalid table can be accessed.

This patch adds a spinlock when processing module tables.

Note, that for correct backtrace, you need recent binutils.
Binutils 2.18 from Debian 5 produce garbage unwind tables.
Binutils 2.21 work better (it sometimes forgets function frames, but at 
least it doesn't generate garbage).

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>

---
 arch/parisc/kernel/unwind.c |   22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

Index: linux-2.6.39-fast/arch/parisc/kernel/unwind.c
===================================================================
--- linux-2.6.39-fast.orig/arch/parisc/kernel/unwind.c	2011-06-28 18:15:14.000000000 +0200
+++ linux-2.6.39-fast/arch/parisc/kernel/unwind.c	2011-06-29 00:24:43.000000000 +0200
@@ -75,7 +75,10 @@ find_unwind_entry(unsigned long addr)
 	if (addr >= kernel_unwind_table.start && 
 	    addr <= kernel_unwind_table.end)
 		e = find_unwind_entry_in_table(&kernel_unwind_table, addr);
-	else 
+	else {
+		unsigned long flags;
+
+		spin_lock_irqsave(&unwind_lock, flags);
 		list_for_each_entry(table, &unwind_tables, list) {
 			if (addr >= table->start && 
 			    addr <= table->end)
@@ -86,6 +89,8 @@ find_unwind_entry(unsigned long addr)
 				break;
 			}
 		}
+		spin_unlock_irqrestore(&unwind_lock, flags);
+	}
 
 	return e;
 }
@@ -305,18 +310,16 @@ static void unwind_frame_regs(struct unw
 
 			insn = *(unsigned int *)npc;
 
-			if ((insn & 0xffffc000) == 0x37de0000 ||
-			    (insn & 0xffe00000) == 0x6fc00000) {
+			if ((insn & 0xffffc001) == 0x37de0000 ||
+			    (insn & 0xffe00001) == 0x6fc00000) {
 				/* ldo X(sp), sp, or stwm X,D(sp) */
-				frame_size += (insn & 0x1 ? -1 << 13 : 0) | 
-					((insn & 0x3fff) >> 1);
+				frame_size += (insn & 0x3fff) >> 1;
 				dbg("analyzing func @ %lx, insn=%08x @ "
 				    "%lx, frame_size = %ld\n", info->ip,
 				    insn, npc, frame_size);
-			} else if ((insn & 0xffe00008) == 0x73c00008) {
+			} else if ((insn & 0xffe00009) == 0x73c00008) {
 				/* std,ma X,D(sp) */
-				frame_size += (insn & 0x1 ? -1 << 13 : 0) | 
-					(((insn >> 4) & 0x3ff) << 3);
+				frame_size += ((insn >> 4) & 0x3ff) << 3;
 				dbg("analyzing func @ %lx, insn=%08x @ "
 				    "%lx, frame_size = %ld\n", info->ip,
 				    insn, npc, frame_size);
@@ -335,6 +338,9 @@ static void unwind_frame_regs(struct unw
 			}
 		}
 
+		if (frame_size > e->Total_frame_size << 3)
+			frame_size = e->Total_frame_size << 3;
+
 		if (!unwind_special(info, e->region_start, frame_size)) {
 			info->prev_sp = info->sp - frame_size;
 			if (e->Millicode)
--
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] fix backtrace on PA-RISC
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In-Reply-To: <alpine.DEB.2.00.1106290043170.32272@artax.karlin.mff.cuni.cz> from "Mikulas Patocka" at Jun 29, 2011 00:48:19 am
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> @@ -305,18 +310,16 @@ static void unwind_frame_regs(struct unw
>  
>  			insn = *(unsigned int *)npc;
>  
> -			if ((insn & 0xffffc000) == 0x37de0000 ||
> -			    (insn & 0xffe00000) == 0x6fc00000) {
> +			if ((insn & 0xffffc001) == 0x37de0000 ||
> +			    (insn & 0xffe00001) == 0x6fc00000) {
>  				/* ldo X(sp), sp, or stwm X,D(sp) */
> -				frame_size += (insn & 0x1 ? -1 << 13 : 0) | 
> -					((insn & 0x3fff) >> 1);
> +				frame_size += (insn & 0x3fff) >> 1;

This doesn't look correct to me.  Look at the disassembly code
in binutils.  In wide mode, an extract_16 operation needs to be
used for ldo.  In non wide mode and for stwm, extract_14 needs
to be used.  extract_14 is a simple 14-bit extraction followed 
low sign extension.

I believe the problem with the original code is that it doesn't
handle wide mode (64-bit kernels) for ldo.

>  				dbg("analyzing func @ %lx, insn=%08x @ "
>  				    "%lx, frame_size = %ld\n", info->ip,
>  				    insn, npc, frame_size);
> -			} else if ((insn & 0xffe00008) == 0x73c00008) {
> +			} else if ((insn & 0xffe00009) == 0x73c00008) {
>  				/* std,ma X,D(sp) */
> -				frame_size += (insn & 0x1 ? -1 << 13 : 0) | 
> -					(((insn >> 4) & 0x3ff) << 3);
> +				frame_size += ((insn >> 4) & 0x3ff) << 3;

I believe the original code is correct for this case.

>  				dbg("analyzing func @ %lx, insn=%08x @ "
>  				    "%lx, frame_size = %ld\n", info->ip,
>  				    insn, npc, frame_size);
> @@ -335,6 +338,9 @@ static void unwind_frame_regs(struct unw
>  			}
>  		}
>  
> +		if (frame_size > e->Total_frame_size << 3)
> +			frame_size = e->Total_frame_size << 3;
> +

??? I don't believe this should happen in frames with a fixed size.
The code probably doesn't handle cases where alloca is used.  The
are some flags for this in the unwind data.

>  		if (!unwind_special(info, e->region_start, frame_size)) {
>  			info->prev_sp = info->sp - frame_size;
>  			if (e->Millicode)
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 


-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [PATCH] fix backtrace on PA-RISC
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To: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
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On Tue, 28 Jun 2011, John David Anglin wrote:

> > @@ -305,18 +310,16 @@ static void unwind_frame_regs(struct unw
> >  
> >  			insn = *(unsigned int *)npc;
> >  
> > -			if ((insn & 0xffffc000) == 0x37de0000 ||
> > -			    (insn & 0xffe00000) == 0x6fc00000) {
> > +			if ((insn & 0xffffc001) == 0x37de0000 ||
> > +			    (insn & 0xffe00001) == 0x6fc00000) {
> >  				/* ldo X(sp), sp, or stwm X,D(sp) */
> > -				frame_size += (insn & 0x1 ? -1 << 13 : 0) | 
> > -					((insn & 0x3fff) >> 1);
> > +				frame_size += (insn & 0x3fff) >> 1;
> 
> This doesn't look correct to me.  Look at the disassembly code
> in binutils.  In wide mode, an extract_16 operation needs to be
> used for ldo.  In non wide mode and for stwm, extract_14 needs
> to be used.  extract_14 is a simple 14-bit extraction followed 
> low sign extension.
> 
> I believe the problem with the original code is that it doesn't
> handle wide mode (64-bit kernels) for ldo.

Here are the sign extension routines from binutils:

static inline int
sign_extend (int x, int len)
{
  int signbit = (1 << (len - 1));
  int mask = (signbit << 1) - 1;
  return ((x & mask) ^ signbit) - signbit;
}

static inline int
low_sign_extend (int x, int len)
{
  return (x >> 1) - ((x & 1) << (len - 1));
}

It probably doesn't matter too much but they are written in a manner
to avoid conditional tests.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [PATCH] fix backtrace on PA-RISC
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On Tue, 28 Jun 2011, John David Anglin wrote:

> > @@ -305,18 +310,16 @@ static void unwind_frame_regs(struct unw
> >  
> >  			insn = *(unsigned int *)npc;
> >  
> > -			if ((insn & 0xffffc000) == 0x37de0000 ||
> > -			    (insn & 0xffe00000) == 0x6fc00000) {
> > +			if ((insn & 0xffffc001) == 0x37de0000 ||
> > +			    (insn & 0xffe00001) == 0x6fc00000) {
> >  				/* ldo X(sp), sp, or stwm X,D(sp) */
> > -				frame_size += (insn & 0x1 ? -1 << 13 : 0) | 
> > -					((insn & 0x3fff) >> 1);
> > +				frame_size += (insn & 0x3fff) >> 1;
> 
> This doesn't look correct to me.  Look at the disassembly code
> in binutils.  In wide mode, an extract_16 operation needs to be
> used for ldo.  In non wide mode and for stwm, extract_14 needs
> to be used.  extract_14 is a simple 14-bit extraction followed 
> low sign extension.

Such large frame size is disallowed in the kernel anyway.

BTW. gcc doesn't use these 16-bit offsets.

> I believe the problem with the original code is that it doesn't
> handle wide mode (64-bit kernels) for ldo.

64-bit ldo is the same as 32-bit ldo if the offset is in <-0x2000;0x1fff>.

> >  				dbg("analyzing func @ %lx, insn=%08x @ "
> >  				    "%lx, frame_size = %ld\n", info->ip,
> >  				    insn, npc, frame_size);
> > -			} else if ((insn & 0xffe00008) == 0x73c00008) {
> > +			} else if ((insn & 0xffe00009) == 0x73c00008) {
> >  				/* std,ma X,D(sp) */
> > -				frame_size += (insn & 0x1 ? -1 << 13 : 0) | 
> > -					(((insn >> 4) & 0x3ff) << 3);
> > +				frame_size += ((insn >> 4) & 0x3ff) << 3;
> 
> I believe the original code is correct for this case.

If insn & 0x1 is true, the code, it does
frame_size += (unsigned)((int)-1 | (unsigned)(((insn >> 4) & 0x3ff) << 3))

Due to unsigned->long conversion, it doesn't decrease frame_size, but it 
adds 0x100000000-X to it. The result is a crash.


See this:
void g(void);

int f(int a)
{
        if (__builtin_expect(a, 1))
                return a;
        g();
        return a;
}

If we optimize it with -O2, it gets translated into
f:
        .PROC
        .CALLINFO FRAME=144,CALLS,SAVE_RP,ENTRY_GR=3
        .ENTRY
        std %r2,-16(%r30)
        ldo 144(%r30),%r30
        extrd,s %r26,63,32,%r28
        cmpb,*= %r0,%r28,.L4
        std %r4,-128(%r30)
.L2:
        ldd -160(%r30),%r2
        ldd -128(%r30),%r4
        bve (%r2)
        ldo -144(%r30),%r30
.L4:
        ldo -48(%r30),%r29
        b,l g,%r2
        std %r28,-136(%r30)
        b .L2
        ldd -136(%r30),%r28
        .EXIT
        .PROCEND
        .size   f, .-f

Now, if we are getting stack trace from "g" function, the code scanner 
sees both
        ldo 144(%r30),%r30
        ldo -144(%r30),%r30
Correct processing would mean to build a jump graph, but it's better to 
just ignore instructions that decrease the frame pointer.

> >  				dbg("analyzing func @ %lx, insn=%08x @ "
> >  				    "%lx, frame_size = %ld\n", info->ip,
> >  				    insn, npc, frame_size);
> > @@ -335,6 +338,9 @@ static void unwind_frame_regs(struct unw
> >  			}
> >  		}
> >  
> > +		if (frame_size > e->Total_frame_size << 3)
> > +			frame_size = e->Total_frame_size << 3;
> > +
> 
> ??? I don't believe this should happen in frames with a fixed size.
> The code probably doesn't handle cases where alloca is used.  The
> are some flags for this in the unwind data.

It's just a safeguard to not crash if we load something incorrect.

> >  		if (!unwind_special(info, e->region_start, frame_size)) {
> >  			info->prev_sp = info->sp - frame_size;
> >  			if (e->Millicode)
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html

Mikulas

> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
> 
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Subject: Re: [PATCH] fix backtrace on PA-RISC
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On Wed, 29 Jun 2011, Mikulas Patocka wrote:

> 
> 
> On Tue, 28 Jun 2011, John David Anglin wrote:
> 
> > > @@ -305,18 +310,16 @@ static void unwind_frame_regs(struct unw
> > >  
> > >  			insn = *(unsigned int *)npc;
> > >  
> > > -			if ((insn & 0xffffc000) == 0x37de0000 ||
> > > -			    (insn & 0xffe00000) == 0x6fc00000) {
> > > +			if ((insn & 0xffffc001) == 0x37de0000 ||
> > > +			    (insn & 0xffe00001) == 0x6fc00000) {
> > >  				/* ldo X(sp), sp, or stwm X,D(sp) */
> > > -				frame_size += (insn & 0x1 ? -1 << 13 : 0) | 
> > > -					((insn & 0x3fff) >> 1);
> > > +				frame_size += (insn & 0x3fff) >> 1;
> > 
> > This doesn't look correct to me.  Look at the disassembly code
> > in binutils.  In wide mode, an extract_16 operation needs to be
> > used for ldo.  In non wide mode and for stwm, extract_14 needs
> > to be used.  extract_14 is a simple 14-bit extraction followed 
> > low sign extension.
> 
> Such large frame size is disallowed in the kernel anyway.
> 
> BTW. gcc doesn't use these 16-bit offsets.
> 
> > I believe the problem with the original code is that it doesn't
> > handle wide mode (64-bit kernels) for ldo.
> 
> 64-bit ldo is the same as 32-bit ldo if the offset is in <-0x2000;0x1fff>.
> 
> > >  				dbg("analyzing func @ %lx, insn=%08x @ "
> > >  				    "%lx, frame_size = %ld\n", info->ip,
> > >  				    insn, npc, frame_size);
> > > -			} else if ((insn & 0xffe00008) == 0x73c00008) {
> > > +			} else if ((insn & 0xffe00009) == 0x73c00008) {
> > >  				/* std,ma X,D(sp) */
> > > -				frame_size += (insn & 0x1 ? -1 << 13 : 0) | 
> > > -					(((insn >> 4) & 0x3ff) << 3);
> > > +				frame_size += ((insn >> 4) & 0x3ff) << 3;
> > 
> > I believe the original code is correct for this case.
> 
> If insn & 0x1 is true, the code, it does
> frame_size += (unsigned)((int)-1 | (unsigned)(((insn >> 4) & 0x3ff) << 3))
> 
> Due to unsigned->long conversion, it doesn't decrease frame_size, but it 
> adds 0x100000000-X to it. The result is a crash.
> 
> 
> See this:
> void g(void);
> 
> int f(int a)
> {
>         if (__builtin_expect(a, 1))
>                 return a;
>         g();
>         return a;
> }
> 
> If we optimize it with -O2, it gets translated into
> f:
>         .PROC
>         .CALLINFO FRAME=144,CALLS,SAVE_RP,ENTRY_GR=3
>         .ENTRY
>         std %r2,-16(%r30)
>         ldo 144(%r30),%r30
>         extrd,s %r26,63,32,%r28
>         cmpb,*= %r0,%r28,.L4
>         std %r4,-128(%r30)
> .L2:
>         ldd -160(%r30),%r2
>         ldd -128(%r30),%r4
>         bve (%r2)
>         ldo -144(%r30),%r30
> .L4:
>         ldo -48(%r30),%r29
>         b,l g,%r2
>         std %r28,-136(%r30)
>         b .L2
>         ldd -136(%r30),%r28
>         .EXIT
>         .PROCEND
>         .size   f, .-f
> 
> Now, if we are getting stack trace from "g" function, the code scanner 
> sees both
>         ldo 144(%r30),%r30
>         ldo -144(%r30),%r30

No, it actually stops when frame_size == (e->Total_frame_size << 3)

But I still don't understand the purpose of decoding those stack pointer 
decrement instruction. Due to bug in the code, every such stack pointer 
decrement adds 0x100000000 to the frame size and causes a crash.

Mikulas
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From - Thu Nov 08 21:07:24 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [PATCH] fix backtrace on PA-RISC
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On Wed, 29 Jun 2011, Mikulas Patocka wrote:

> > Now, if we are getting stack trace from "g" function, the code scanner 
> > sees both
> >         ldo 144(%r30),%r30
> >         ldo -144(%r30),%r30
> 
> No, it actually stops when frame_size == (e->Total_frame_size << 3)
> 
> But I still don't understand the purpose of decoding those stack pointer 
> decrement instruction. Due to bug in the code, every such stack pointer 
> decrement adds 0x100000000 to the frame size and causes a crash.

Understand.  The purpose of decoding the stack pointer adjustments
probably was to handle the case where the .callinfo frame size information
is missing or wrong.  This is probably a remnant from when binutils was
generating incorrect unwind data...

Thus, you are correct that the negative adjustments should be ignored.
In large frames, I believe that the adjustment is done in more than
one instruction.

It is quite unlikely that the pc in a backtrace will occur before
the positive adjustment or after the negative adjustment.

If the above is a problem, it probably would be fairly simple to
check whether the pc lies between the entry point and the positive
adjustment.  Similarly, for the negative adjustment.  In both cases,
the adjustments have to be in the same code basic block as the
entry/return.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:07:25 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: debian hppa
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To: Grant Grundler <grundler@parisc-linux.org>
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Hi Grant,

On Thu, 02 Jun 2011, Grant Grundler wrote:

> As discussed off list a few months ago, HW salvaged from the Cupertino
> Test Ring should be headed your way in the near future.

I learned Monday that NRC wasn't going renew to my guest appointment.
There have been problems with some other appointments at HIA.

NRC has a new President and major changes are occuring within the
organization.  Guest Worker appointments now have to be approved by
NRC legal and a VP, so they are much more difficult and visible.
It seems to take months for an appointment to be processed.  There
are concerns about liability, IP, etc.

It's still not clear whether I end now or at the end of December.
I plan to take home the rp3440 and c3750 at NRC.  That's about all
that I can fit in my office at home.  I might fit another server
with internal drives on top of the rp3440, but that's about it.

I can continue some Linux GCC support from home, but there is no room
anymore for HP-UX.

If HP hasn't shipped the Cup stuff, probably the matter should be reviewed.

Regards,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:07:25 2018
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From: "PROF.MAURICE IWU" <iwumaurice900@sify.com>
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Equity Business Investment
>From Prof. Maurice Iwu 

Dear Friend,

I am Prof. Maurice M. Iwu, Former Chairman Independent Electoral Commission 
(INEC).Currently, I am on compulsory terminal leave presently in UK , 
leading up to my final retirement from public service.

I am seeking your partnership in a mutual benefit project involving 
investing into your company and secondly on properties and to be precise Estate Development or any other profitable venture of your great idea for our mutual benefit of Equity Market Investment.,

Sincerely,
Prof. Maurice M.Iwu.
{INEC.}
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From - Thu Nov 08 21:07:25 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.drivers.e1000.devel,gmane.linux.network
Subject: Re: [E1000-devel] [PATCH] e1000: Allow the driver to be used on PA
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Cc: Rolf Eike Beer <eike-kernel@sf-tec.de>,
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To: Matt Turner <mattst88@gmail.com>,
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	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@intel.com>
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On Mon, Jun 27, 2011 at 03:33:43PM -0400, Matt Turner wrote:
> On Mon, Jun 27, 2011 at 2:42 PM, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
> > Rolf Eike Beer wrote:
> >> Am Freitag, 18. M?rz 2011, 17:39:57 schrieb Rolf Eike Beer:
> >> > Am Mittwoch, 2. M?rz 2011, 21:19:24 schrieb Jesse Brandeburg:
> >> > > On Mon, Feb 28, 2011 at 5:40 AM, Guy Martin <gmsoft@tuxicoman.be> wrote:
> >> > > > Hi Jeff,
> >> > > >
> >> > > > Any luck getting this into mainline ?
> >> > >
> >> > > Hi Guy, sorry for the delay,
> >> > > We haven't been able to get our contacts in HP to give us a decent
> >> > > response so far, we are following up with them to see whats up. ?We
> >> > > have not lost the patch and are still tracking it internally.
> >> > >
> >> > > Give us a couple more weeks if that is okay and we should be able to
> >> > > settle this by then.
> >> >
> >> > I wonder what exactly you are waiting for? This is a sanity check that
> >> > we
> >> > disable, so no working systems could get broken by this. And every
> >> > single
> >> > C8000 seems to be affected by this and is working fine with that patch.
> >> > So maybe people at HP might have a clue _why_ this is screwed, but
> >> > until then I don't see any point in waiting.
> >> >
> >> > So please just add my tested-by and push this upstream soon. Since this
> >> > is basically a hardware quirk I would like to get this into stable also
> >> > so we may run vanilla 2.6.38.1 or something like that on C8000.
> >> >
> >> > Tested-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
> >>
> >> For the netdev folks: it's this patch we are talking about
> >>
> >> http://www.spinics.net/lists/linux-parisc/msg03091.html
> >>
> >> I would love to see that someone finally picks this up and pushes this
> >> upstream, CC stable. This is absolutely annoying as it breaks every time
> >> anyone touches the kernel on one of this machines.
> >>
> >> Jeff, David, James: can you please make a decision of who takes this and
> >> then just do it?
> >
> > Ping?
> 
> Ping indeed. Waiting as if HP is going to say "yes, we fucked that up.
> Go ahead with the patch." is silly.

AFAIK, HP hasn't paid anyone to work on parisc-linux in almost 10 years.
Good luck finding someone in HP who knows about C8000, much less it's
NIC firmware.

Jesse or Jeff K. should be able to accept the patch as-is.
I don't see any problem with it.

hth,
grant (ex-HP employee: 1999-2002 parisc-linux and 2002-2006 ia64-linux drivers)
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On Wed, Jun 29, 2011 at 03:33:47PM -0400, John David Anglin wrote:
> Hi Grant,
> 
> On Thu, 02 Jun 2011, Grant Grundler wrote:
> 
> > As discussed off list a few months ago, HW salvaged from the Cupertino
> > Test Ring should be headed your way in the near future.
> 
> I learned Monday that NRC wasn't going renew to my guest appointment.
> There have been problems with some other appointments at HIA.
> 
> NRC has a new President and major changes are occuring within the
> organization.  Guest Worker appointments now have to be approved by
> NRC legal and a VP, so they are much more difficult and visible.
> It seems to take months for an appointment to be processed.  There
> are concerns about liability, IP, etc.

That's unfortunate. :(

> It's still not clear whether I end now or at the end of December.
> I plan to take home the rp3440 and c3750 at NRC.  That's about all
> that I can fit in my office at home.  I might fit another server
> with internal drives on top of the rp3440, but that's about it.

Ok.

> I can continue some Linux GCC support from home, but there is no room
> anymore for HP-UX.
> 
> If HP hasn't shipped the Cup stuff, probably the matter should be reviewed.

I thought it was but don't know if Rick (CC'd) was able to find a contact
in HP (Kanata or anything near Ottawa) to handle transfer.

Thanks!
grant
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I've been letting myself get distracted by "the day job" wrt getting equipment shipped to Canada :( But am still willing to give it a go if there is still a destination.

rick jones
there is no rest for the wicked, yet the virtuous have no pillows

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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: tst-cputimer1 and tst-timer4
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Dave,

Instrumenting tst-cputimer1 yields:
~~
carlos@firin:~/fsrc/glibc-work/tests/tst-cputimer1$ ./tst-cputimer1
clock_gettime returned timespec = { 0, 40000000 }
clock_getres returned timespec = { 0, 1 }
timer_helper_thread: creating thread...

timer_segev_thread: tid 1329
timer_helper_thread: creating thread...
~~~

The first thread starts, the second thread doesn't.

You expressed some worry over this failure:
~~~
1309709905.557733 futex(0xc043e2c8, FUTEX_WAKE_PRIVATE, 1) = 0
1309709905.557733 futex(0xc043e2c8,
FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, 0) = -1
EINVAL (Invalid argument)
~~~
This is part of nptl/npt-init.c where the threading system is trying
to determine, at runtime, certain functionality.
The first test is to determine if private futexes e.g.
FUTEX_PRIVATE_FLAG are available, and they are.
The second test is to determine if FUTEX_CLOCK_REALTIME is available,
and it is, the test looks only for ENOSYS on return.

The first thread has a futex operation fail completely:
~~~
[pid  8589] 1309709905.789735 clone(Process 8590 attached
child_stack=0x40e65040,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x416644e8, tls=0x41664900, child_tidptr=0x416644e8) =
8590
[pid  8590] 1309709905.789735 set_robust_list(0x416644f0, 0xc <unfinished ...>
[pid  8589] 1309709905.789735 rt_sigtimedwait([RTMIN],  <unfinished ...>
[pid  8590] 1309709905.789735 <... set_robust_list resumed> ) = 0
[pid  8590] 1309709905.789735 gettid()  = 8590
[pid  8590] 1309709905.789735 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  8590] 1309709905.789735 clock_gettime(0xfffffffa /* CLOCK_???
*/, {0, 252000000}) = 0
[pid  8590] 1309709905.789735 futex(0x14548, FUTEX_WAKE_OP_PRIVATE, 1,
1, 0x14540, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = -1 ENOSYS
(Function not implemented)
~~~
This is a worrisome problem, that's a feature that's expected to work
and doesn't.

It's part of the internal NPTL thread handling, I don't know
specifically which futext it is, but it's important :-)

This needs fixing. I'll look into that next.

Cheers,
Carlos.
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From - Thu Nov 08 21:07:25 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: tst-cputimer1 and tst-timer4
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To: Carlos O'Donell <carlos@systemhalted.org>
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Hi Carlos,

 From what I see below, you have learned a lot about the failure.   
There's probably an operation
in the kernel that isn't hooked up although one would tend to think  
most of this should be generic.

we went canoeing today,
Dave

On 3-Jul-11, at 1:16 PM, Carlos O'Donell wrote:

> Dave,
>
> Instrumenting tst-cputimer1 yields:
> ~~
> carlos@firin:~/fsrc/glibc-work/tests/tst-cputimer1$ ./tst-cputimer1
> clock_gettime returned timespec = { 0, 40000000 }
> clock_getres returned timespec = { 0, 1 }
> timer_helper_thread: creating thread...
>
> timer_segev_thread: tid 1329
> timer_helper_thread: creating thread...
> ~~~
>
> The first thread starts, the second thread doesn't.
>
> You expressed some worry over this failure:
> ~~~
> 1309709905.557733 futex(0xc043e2c8, FUTEX_WAKE_PRIVATE, 1) = 0
> 1309709905.557733 futex(0xc043e2c8,
> FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, 0) = -1
> EINVAL (Invalid argument)
> ~~~
> This is part of nptl/npt-init.c where the threading system is trying
> to determine, at runtime, certain functionality.
> The first test is to determine if private futexes e.g.
> FUTEX_PRIVATE_FLAG are available, and they are.
> The second test is to determine if FUTEX_CLOCK_REALTIME is available,
> and it is, the test looks only for ENOSYS on return.
>
> The first thread has a futex operation fail completely:
> ~~~
> [pid  8589] 1309709905.789735 clone(Process 8590 attached
> child_stack=0x40e65040,
> flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD| 
> CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
> parent_tidptr=0x416644e8, tls=0x41664900, child_tidptr=0x416644e8) =
> 8590
> [pid  8590] 1309709905.789735 set_robust_list(0x416644f0, 0xc  
> <unfinished ...>
> [pid  8589] 1309709905.789735 rt_sigtimedwait([RTMIN],   
> <unfinished ...>
> [pid  8590] 1309709905.789735 <... set_robust_list resumed> ) = 0
> [pid  8590] 1309709905.789735 gettid()  = 8590
> [pid  8590] 1309709905.789735 rt_sigprocmask(SIG_SETMASK, [], NULL,  
> 8) = 0
> [pid  8590] 1309709905.789735 clock_gettime(0xfffffffa /* CLOCK_???
> */, {0, 252000000}) = 0
> [pid  8590] 1309709905.789735 futex(0x14548, FUTEX_WAKE_OP_PRIVATE, 1,
> 1, 0x14540, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = -1 ENOSYS
> (Function not implemented)
> ~~~
> This is a worrisome problem, that's a feature that's expected to work
> and doesn't.
>
> It's part of the internal NPTL thread handling, I don't know
> specifically which futext it is, but it's important :-)
>
> This needs fixing. I'll look into that next.
>
> Cheers,
> Carlos.
>

--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:07:25 2018
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On 3-Jul-11, at 11:33 AM, rick jones wrote:

> I've been letting myself get distracted by "the day job" wrt getting  
> equipment shipped to Canada :( But am still willing to give it a go  
> if there is still a destination.

Let's hold off a bit until I get a response from the VP.  Possibly, I  
could share stuff with Carlos
if NRC doesn't work out.

Dave
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James, Dave,

While running some glibc tests on 2.6.39-rc3a+ I noticed the following:
~~~
...
[ 7649.424000] INEQUIVALENT ALIASES 0x13000 and 0x14000 in file tst-cputimer1
[ 7649.568000] INEQUIVALENT ALIASES 0x13000 and 0x14000 in file tst-cputimer1
[ 7649.720000] INEQUIVALENT ALIASES 0x13000 and 0x14000 in file tst-cputimer1
...
~~~

This is a binutils head, building glibc head, with gcc 4.4.4.

This *only* happens when I strace the application.

While the application is being strace'd it continually dumps the same
message about inequivalent aliases.

Any idea what's going on here?

How can I fix it? :-)

Cheers,
Carlos.
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On 7/3/2011 10:39 PM, Carlos O'Donell wrote:
> James, Dave,
>
> While running some glibc tests on 2.6.39-rc3a+ I noticed the following:
> ~~~
> ...
> [ 7649.424000] INEQUIVALENT ALIASES 0x13000 and 0x14000 in file tst-cputimer1
> [ 7649.568000] INEQUIVALENT ALIASES 0x13000 and 0x14000 in file tst-cputimer1
> [ 7649.720000] INEQUIVALENT ALIASES 0x13000 and 0x14000 in file tst-cputimer1
> ...
> ~~~
>
> This is a binutils head, building glibc head, with gcc 4.4.4.
>
> This *only* happens when I strace the application.
>
> While the application is being strace'd it continually dumps the same
> message about inequivalent aliases.
>
> Any idea what's going on here?
>
> How can I fix it? :-)

You need to update binutils to get new linker (actually, it's the 
default linker script that's changed).
The new linker script starts the data section on a page boundary.

It's not GCC version dependent.  However, newer GCC versions have 
improved delay slot handling.

It's caused by overlapping mappings of text and data which you can see 
by dumping the maps file
for the process.  I think I may have back ported the fix.  If you build 
binutils head, you will have to
configure with --disable-initfini-array to build glibc.

I don't know all the circumstances under which the message appears.  It 
always occurs on a core
dump.  It occurs when a page needs to be flushed and there are two or 
more inequivalent aliases
to the page.

It's probably harmless on A500.  It affects PA8800/PA8900.

Dave
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On 7/4/2011 9:28 AM, John David Anglin wrote:
> On 7/3/2011 10:39 PM, Carlos O'Donell wrote:
>> This is a binutils head, building glibc head, with gcc 4.4.4. You 
>> need to update binutils to get new linker (actually, it's the default 
>> linker script that's changed).
>> The new linker script starts the data section on a page boundary.

Depending on how GCC is configured, it may or may not use your binutils 
head linker.  gcc -v should show
what's going on.

Dave
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Subject: Re: Inequivalent aliases when stracing tst-cputimer1.
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On Mon, Jul 4, 2011 at 10:21 AM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
> On 7/4/2011 9:28 AM, John David Anglin wrote:
>>
>> On 7/3/2011 10:39 PM, Carlos O'Donell wrote:
>>>
>>> This is a binutils head, building glibc head, with gcc 4.4.4. You n=
eed to
>>> update binutils to get new linker (actually, it's the default linke=
r script
>>> that's changed).
>>> The new linker script starts the data section on a page boundary.
>
> Depending on how GCC is configured, it may or may not use your binuti=
ls head
> linker. =A0gcc -v should show
> what's going on.

You are correct, that was my mistake. I had rebuilt this particular
test without using binutils head, once I rebuilt with the newer linker
script, the two load segments have the correct alignment and the
application no longer exhibits these inequivalent aliases under
strace.

Thanks, that's one problem fixed.

Cheers,
Carlos.
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On Sun, Jul 3, 2011 at 7:22 PM, John David Anglin <dave.anglin@bell.net=
> wrote:
> Hi Carlos,
>
> From what I see below, you have learned a lot about the failure. =A0T=
here's
> probably an operation
> in the kernel that isn't hooked up although one would tend to think m=
ost of
> this should be generic.

OK, fixed the kernel. We were still using the no-op futex
implementation I checked in 5 years ago :-(

=46ixing the kernel doesn't fix the testcase but instrumenting glibc
further reveals the cause of the failure:
~~~
carlos@firin:~/fsrc/glibc-work/tests/tst-cputimer1$ ./tst-cputimer1
do_clone: ARCH_CLONE...

clock_gettime returned timespec =3D { 0, 40000000 }
clock_getres returned timespec =3D { 0, 1 }
do_clone: ARCH_CLONE...

timer_helper_thread: creating thread...

do_clone: ARCH_CLONE...

timer_helper_thread: pthread_create ret 0
timer_segev_thread: tid 20077
timer_helper_thread: creating thread...

pthread_create: ALLOCATE_STACK failed.

timer_helper_thread: pthread_create ret 22
~~~

The second threads stack fails to allocate.

I don't know why, the stack allocation on hppa is tricky because of
S_G_U and the placement of stack guards.

Why it would fail for one thread and not the other is odd.

I'll keep digging.

Cheers,
Carlos.
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: tst-cputimer1 and tst-timer4
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On Mon, Jul 4, 2011 at 11:21 AM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> pthread_create: ALLOCATE_STACK failed.
>
> timer_helper_thread: pthread_create ret 22
> ~~~
>
> The second threads stack fails to allocate.

1309792564.144002 set_robust_list(0x4000b4f0, 0xc) = 0
1309792564.144002 rt_sigtimedwait([RTMIN], {si_signo=SIGRTMIN,
si_code=SI_TIMER, si_pid=4, si_uid=0, si_value={int=90456,
ptr=0x16158}}, NULL, 8) = 37
1309792564.368004 write(1, "timer_helper_thread: creating th"..., 40) = 40
1309792564.368004 write(1, "\n", 1)     = 1
1309792564.368004 mmap(NULL, 8388608, PROT_READ|PROT_WRITE|PROT_EXEC,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x41349000
1309792564.368004 mprotect(0x41b47000, 4096, PROT_NONE) = 0
1309792564.368004 write(1, "do_clone: ARCH_CLONE...\n", 24) = 24
1309792564.368004 write(1, "\n", 1)     = 1
1309792564.372004 clone(child_stack=0x41349040,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x41b484e8, tls=0x41b48900, child_tidptr=0x41b484e8) =
21795
1309792564.372004 write(1, "timer_helper_thread: pthread_cre"..., 42) = 42
1309792564.372004 rt_sigtimedwait([RTMIN], {si_signo=SIGRTMIN,
si_code=SI_TIMER, si_pid=5, si_uid=0, si_value={int=90520,
ptr=0x16198}}, NULL, 8) = 37
1309792564.476005 write(1, "timer_helper_thread: creating th"..., 40) = 40
1309792564.476005 write(1, "\n", 1)     = 1
1309792564.480005 mprotect(0x41b47480, 4096,
PROT_READ|PROT_WRITE|PROT_EXEC) = -1 EINVAL (Invalid argument)
1309792564.480005 munmap(0x41349000, 8388608) = 0
1309792564.480005 write(1, "pthread_create: ALLOCATE_STACK f"..., 39) = 39

Why would this mprotect fail with -EINVAL? It's not page aligned?

You can see the earlier mmap/mprotect from thread one's stack looks
page aligned.

I'll look into this.

Cheers,
Carlos.
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: tst-cputimer1 and tst-timer4
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On Mon, Jul 4, 2011 at 11:26 AM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> On Mon, Jul 4, 2011 at 11:21 AM, Carlos O'Donell
> <carlos@systemhalted.org> wrote:
>> pthread_create: ALLOCATE_STACK failed.
>>
>> timer_helper_thread: pthread_create ret 22
>> ~~~
>>
>> The second threads stack fails to allocate.
>
> 1309792564.144002 set_robust_list(0x4000b4f0, 0xc) =3D 0
> 1309792564.144002 rt_sigtimedwait([RTMIN], {si_signo=3DSIGRTMIN,
> si_code=3DSI_TIMER, si_pid=3D4, si_uid=3D0, si_value=3D{int=3D90456,
> ptr=3D0x16158}}, NULL, 8) =3D 37
> 1309792564.368004 write(1, "timer_helper_thread: creating th"..., 40)=
 =3D 40
> 1309792564.368004 write(1, "\n", 1) =A0 =A0 =3D 1
> 1309792564.368004 mmap(NULL, 8388608, PROT_READ|PROT_WRITE|PROT_EXEC,
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =3D 0x41349000
> 1309792564.368004 mprotect(0x41b47000, 4096, PROT_NONE) =3D 0
> 1309792564.368004 write(1, "do_clone: ARCH_CLONE...\n", 24) =3D 24
> 1309792564.368004 write(1, "\n", 1) =A0 =A0 =3D 1
> 1309792564.372004 clone(child_stack=3D0x41349040,
> flags=3DCLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLON=
E_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
> parent_tidptr=3D0x41b484e8, tls=3D0x41b48900, child_tidptr=3D0x41b484=
e8) =3D
> 21795
> 1309792564.372004 write(1, "timer_helper_thread: pthread_cre"..., 42)=
 =3D 42
> 1309792564.372004 rt_sigtimedwait([RTMIN], {si_signo=3DSIGRTMIN,
> si_code=3DSI_TIMER, si_pid=3D5, si_uid=3D0, si_value=3D{int=3D90520,
> ptr=3D0x16198}}, NULL, 8) =3D 37
> 1309792564.476005 write(1, "timer_helper_thread: creating th"..., 40)=
 =3D 40
> 1309792564.476005 write(1, "\n", 1) =A0 =A0 =3D 1
> 1309792564.480005 mprotect(0x41b47480, 4096,
> PROT_READ|PROT_WRITE|PROT_EXEC) =3D -1 EINVAL (Invalid argument)
> 1309792564.480005 munmap(0x41349000, 8388608) =3D 0
> 1309792564.480005 write(1, "pthread_create: ALLOCATE_STACK f"..., 39)=
 =3D 39
>
> Why would this mprotect fail with -EINVAL? It's not page aligned?
>
> You can see the earlier mmap/mprotect from thread one's stack looks
> page aligned.
>
> I'll look into this.

Alright, the documetnation for mprotect definately says "addr must be
aligned to a page boundary."

And matches the return failure:
"EINVAL addr is not a valid pointer, or not a multiple of the system pa=
ge size."

So it would seem that this just works in the _S_G_D case because of
the way addresses line up.

I'm instrumenting the stack allocation code and guard setup to see if
I missed anything.

This part of glibc has been heavily patched by me to enable _S_G_U,
and it's probably the ugliest part of the thread startup code.

Cheers,
Carlos.
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From - Thu Nov 08 21:07:26 2018
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X-Mozilla-Keys:                                                                                 
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: tst-cputimer1 and tst-timer4
Date: Mon, 4 Jul 2011 12:58:25 -0400
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To: Carlos O'Donell <carlos@systemhalted.org>
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On 7/4/2011 11:26 AM, Carlos O'Donell wrote:
> On Mon, Jul 4, 2011 at 11:21 AM, Carlos O'Donell
> <carlos@systemhalted.org>  wrote:
>> pthread_create: ALLOCATE_STACK failed.
>>
>> timer_helper_thread: pthread_create ret 22
>> ~~~
>>
>> The second threads stack fails to allocate.
> 1309792564.144002 set_robust_list(0x4000b4f0, 0xc) = 0
> 1309792564.144002 rt_sigtimedwait([RTMIN], {si_signo=SIGRTMIN,
> si_code=SI_TIMER, si_pid=4, si_uid=0, si_value={int=90456,
> ptr=0x16158}}, NULL, 8) = 37
> 1309792564.368004 write(1, "timer_helper_thread: creating th"..., 40) = 40
> 1309792564.368004 write(1, "\n", 1)     = 1
> 1309792564.368004 mmap(NULL, 8388608, PROT_READ|PROT_WRITE|PROT_EXEC,
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x41349000
> 1309792564.368004 mprotect(0x41b47000, 4096, PROT_NONE) = 0
> 1309792564.368004 write(1, "do_clone: ARCH_CLONE...\n", 24) = 24
> 1309792564.368004 write(1, "\n", 1)     = 1
> 1309792564.372004 clone(child_stack=0x41349040,
> flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
> parent_tidptr=0x41b484e8, tls=0x41b48900, child_tidptr=0x41b484e8) =
> 21795
> 1309792564.372004 write(1, "timer_helper_thread: pthread_cre"..., 42) = 42
> 1309792564.372004 rt_sigtimedwait([RTMIN], {si_signo=SIGRTMIN,
> si_code=SI_TIMER, si_pid=5, si_uid=0, si_value={int=90520,
> ptr=0x16198}}, NULL, 8) = 37
> 1309792564.476005 write(1, "timer_helper_thread: creating th"..., 40) = 40
> 1309792564.476005 write(1, "\n", 1)     = 1
> 1309792564.480005 mprotect(0x41b47480, 4096,
> PROT_READ|PROT_WRITE|PROT_EXEC) = -1 EINVAL (Invalid argument)
> 1309792564.480005 munmap(0x41349000, 8388608) = 0
> 1309792564.480005 write(1, "pthread_create: ALLOCATE_STACK f"..., 39) = 39
>
> Why would this mprotect fail with -EINVAL? It's not page aligned?
>
> You can see the earlier mmap/mprotect from thread one's stack looks
> page aligned.

I believe that the stack value needs to be aligned.  See comment in
arch_get_unmapped_area.  Not sure if this will fix mprotect.

I submitted a patch to return an error if  but there was no comment.

Dave
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From - Thu Nov 08 21:07:26 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: tst-cputimer1 and tst-timer4
Date: Mon, 4 Jul 2011 13:49:27 -0400
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On Mon, Jul 4, 2011 at 12:58 PM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
>> Why would this mprotect fail with -EINVAL? It's not page aligned?
>>
>> You can see the earlier mmap/mprotect from thread one's stack looks
>> page aligned.
>
> I believe that the stack value needs to be aligned. =A0See comment in
> arch_get_unmapped_area. =A0Not sure if this will fix mprotect.

What needs to be aligned, the stack value or the addr in a call to mpro=
tect?

The latter, yes, that appears to be the case.

The stack will be at least aligned to the target requirement.

> I submitted a patch to return an error if =A0but there was no comment=
=2E

Reference?

Cheers,
Carlos.
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On 7/4/2011 1:49 PM, Carlos O'Donell wrote:
> On Mon, Jul 4, 2011 at 12:58 PM, John David Anglin<dave.anglin@bell.net>  wrote:
>>> Why would this mprotect fail with -EINVAL? It's not page aligned?
>>>
>>> You can see the earlier mmap/mprotect from thread one's stack looks
>>> page aligned.
>> I believe that the stack value needs to be aligned.  See comment in
>> arch_get_unmapped_area.  Not sure if this will fix mprotect.
> What needs to be aligned, the stack value or the addr in a call to mprotect?

Actually, it's not the stack address but the address used in the malloc 
call to allocate the
thread's stack that needs alignment.  I believe 64 bytes are used by the 
parent.  In current
thread setup.  So, it looks like child_stack value is ok.

The Linux man page says the mprotect addr must be a valid pointer or a 
multiple of PAGESIZE.
It's not clear what the mprotect call is trying to protect but it is 
definitely not page aligned.
>> I submitted a patch to return an error if  but there was no comment.
> Reference?
>
http://www.spinics.net/lists/linux-parisc/msg03352.html

Dave
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On Mon, Jul 4, 2011 at 2:50 PM, John David Anglin <dave.anglin@bell.net=
> wrote:
> The Linux man page says the mprotect addr must be a valid pointer or =
a
> multiple of PAGESIZE.
> It's not clear what the mprotect call is trying to protect but it is
> definitely not page aligned.

It's trying to protect the new stack for the thread, which is
obviously in the wrong spot.

The new stack is in the middle of the last threads guard.

I don't know what conditions triggered here, but I'm tracking it down.

The C library has a stack cache which might be the culprit, but I'd
believed all these issues fixed, I guess not.

I like easy bugs... this is simply a matter of debugging at this point.

>>> I submitted a patch to return an error if =A0but there was no comme=
nt.
>>
>> Reference?
>>
> http://www.spinics.net/lists/linux-parisc/msg03352.html

Interesting. Thanks.

Cheers,
Carlos.
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On Mon, Jul 4, 2011 at 2:59 PM, Carlos O'Donell <carlos@systemhalted.org> wrote:
> On Mon, Jul 4, 2011 at 2:50 PM, John David Anglin <dave.anglin@bell.net> wrote:
>> The Linux man page says the mprotect addr must be a valid pointer or a
>> multiple of PAGESIZE.
>> It's not clear what the mprotect call is trying to protect but it is
>> definitely not page aligned.
>
> It's trying to protect the new stack for the thread, which is
> obviously in the wrong spot.

Good news.

I have fixed tst-cputimer1.

When a thread uses a cached stack block the location of the guard is
incorrectly computed.

The incorrect guard location causes mprotect to fail, failing the
thread stack allocation, and triggering a thread creation failure.

The defect results:

* in a missed timer event because of the silent death of the timer
thread (SIGEV_THREAD) that used the cached stack.

* in a pthread_create failure with error code EINVAL (22).

With the fix I can now run tst-cputimer1 without a hang, but the test
still complains about timers expiring early, that may be kernel
related.

This is a *serious* defect and would have caused a lot of userspace
instability for any program that uses short running threads (causing
the stack cache to be used).

I'm surprised that things worked so well, it's probably a testament to
the fact that few programs use SIGEV_THREAD, threads, or short running
threads.

When debugging if you slow down thr1 sufficiently, then thr2 can't
reuse the stack and it gets a new one, which works correctly. This
explains the odd behaviour I saw during debugging.

In a similar vein, I found that madvise was being passed an unaligned
block during thread shutdown, resulting in memory not being correctly
given back to the OS.

These two bug fixes should be a serious win for threaded applications on hppa.

~~~ tst-cputimer1 run on patched glibc ~~~
carlos@firin:~/fsrc/glibc-work/tests/tst-cputimer1$ ./tst-cputimer1 >& run.txt
carlos@firin:~/fsrc/glibc-work/tests/tst-cputimer1$ cat run.txt
clock_gettime returned timespec = { 0, 36000000 }
clock_getres returned timespec = { 0, 1 }
*** Calling clock_gettime

*** Checking thr2_cont > =5

*** Incrementing thr2_count

*** timer sig1 invoked too soon: 0.436000000 instead of expected 0.440000000
*** timer sig2 invoked too soon: 0.536000000 instead of expected 0.540000000
*** Calling clock_gettime

*** Checking thr2_cont > =5

*** Incrementing thr2_count

*** Calling clock_gettime

*** Checking thr2_cont > =5

*** Incrementing thr2_count

*** Calling clock_gettime

*** Checking thr2_cont > =5

*** Incrementing thr2_count

*** Calling clock_gettime

*** Checking thr2_cont > =5

*** Incrementing thr2_count

*** Calling clock_gettime

*** Checking thr2_cont > =5

*** Incrementing thr2_count

*** timer thr2 invoked too soon: 2.928000000 instead of expected 2.936000000
*** timer sig1 invoked too soon: 3.424000000 instead of expected 3.436000000
*** timer sig2 invoked too soon: 3.924000000 instead of expected 3.936000000
carlos@firin:~/fsrc/glibc-work/tests/tst-cputimer1$
~~~

Cheers,
Carlos.
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Am Dienstag 05 Juli 2011, 19:28:35 schrieben Sie:
> On Mon, Jul 4, 2011 at 2:59 PM, Carlos O'Donell <carlos@systemhalted.org>=
=20
wrote:
> > On Mon, Jul 4, 2011 at 2:50 PM, John David Anglin <dave.anglin@bell.net=
>=20
wrote:
> >> The Linux man page says the mprotect addr must be a valid pointer or a
> >> multiple of PAGESIZE.
> >> It's not clear what the mprotect call is trying to protect but it is
> >> definitely not page aligned.
> >=20
> > It's trying to protect the new stack for the thread, which is
> > obviously in the wrong spot.
>=20
> Good news.
>=20
> I have fixed tst-cputimer1.

You also wrote "OK, fixed the kernel." So where an when will these fixes sh=
ow=20
up?

Eike

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On Tue, Jul 5, 2011 at 1:51 PM, Rolf Eike Beer <eike@sf-mail.de> wrote:
> Am Dienstag 05 Juli 2011, 19:28:35 schrieben Sie:
>> On Mon, Jul 4, 2011 at 2:59 PM, Carlos O'Donell <carlos@systemhalted.org>
> wrote:
>> > On Mon, Jul 4, 2011 at 2:50 PM, John David Anglin <dave.anglin@bell.net>
> wrote:
>> >> The Linux man page says the mprotect addr must be a valid pointer or a
>> >> multiple of PAGESIZE.
>> >> It's not clear what the mprotect call is trying to protect but it is
>> >> definitely not page aligned.
>> >
>> > It's trying to protect the new stack for the thread, which is
>> > obviously in the wrong spot.
>>
>> Good news.
>>
>> I have fixed tst-cputimer1.
>
> You also wrote "OK, fixed the kernel." So where an when will these fixes show
> up?

Unfortunately I hosed my setup and I didn't have git installed to make
a proper diff so here's a diff versus a somewhat recent tree.

 WIP patch: http://www.parisc-linux.org/~carlos/futex.diff

Cheers,
Carlos.
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From - Thu Nov 08 21:07:26 2018
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Hi Thibaut,

On 13-Jun-11, at 6:19 PM, Thibaut VARENE wrote:

>> I would say your other machines need updating even if the process is
>> somewhat rocky as that's the only way a broadbased release can be  
>> tested.
>
> Well I can assign one machine (the a500, being easy to reboot/fix as
> it is) to testing kernels, but for a stable kernel suitable for the
> machines I'm e.g. assigning to the GCC Compile Farm[0], what would be
> a good SMP kernel version to choose? I'm looking for the same level of
> hassle-freeness as 2.6.22.19 since these machines are under relatively
> heavy load and I cannot afford to tend to their care on a daily basis
> ;-)

Sorry for the delay in responding.  I think assigning the a500 to the  
GCC farm
provides good visibility.  For GCC, the kernel version doesn't matter  
much.  The
main issue is stability.

I was wondering if the rp3440 in the ESIEE might be assigned to  
running debian
buildd.  I believe that the current set of known kernel patches will  
make this
machine reasonably stable under medium load.  Carlos recently found a  
big
bug in the kernel futex code.  In any case, I recently successfully  
built many
unstable packages on my rp3440.

I would be willing to help getting this going.

Dave

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Dave,

FYI.

PA should be sorting relocations in .rlea.dyn such that realtive
relocations (DIR32) are listed first before opd relocs (PLABEL32).

This is required for the dynamic linker in glibc to operate correctly.

As a workaround I'm going to fixup the problem in glibc until I get a
chance to fix binutils.

See:
http://sourceware.org/ml/libc-alpha/2011-07/msg00055.html

Cheers,
Carlos.
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On Thu, Jul 7, 2011 at 1:20 AM, John David Anglin
<dave.anglin@nrc-cnrc.gc.ca> wrote:
> Hi Thibaut,
>
> On 13-Jun-11, at 6:19 PM, Thibaut VARENE wrote:
>
>>> I would say your other machines need updating even if the process i=
s
>>> somewhat rocky as that's the only way a broadbased release can be t=
ested.
>>
>> Well I can assign one machine (the a500, being easy to reboot/fix as
>> it is) to testing kernels, but for a stable kernel suitable for the
>> machines I'm e.g. assigning to the GCC Compile Farm[0], what would b=
e
>> a good SMP kernel version to choose? I'm looking for the same level =
of
>> hassle-freeness as 2.6.22.19 since these machines are under relative=
ly
>> heavy load and I cannot afford to tend to their care on a daily basi=
s
>> ;-)
>
> Sorry for the delay in responding. =C2=A0I think assigning the a500 t=
o the GCC
> farm
> provides good visibility. =C2=A0For GCC, the kernel version doesn't m=
atter much.
> =C2=A0The
> main issue is stability.

OK, so I suppose it's fine to stick with 2.6.22.19? I thought there
were issues with un-implemented syscalls and such, so I don't really
know...

> I was wondering if the rp3440 in the ESIEE might be assigned to runni=
ng
> debian
> buildd. =C2=A0I believe that the current set of known kernel patches =
will make
> this
> machine reasonably stable under medium load. =C2=A0Carlos recently fo=
und a big
> bug in the kernel futex code. =C2=A0In any case, I recently successfu=
lly built
> many
> unstable packages on my rp3440.
>
> I would be willing to help getting this going.

I have no problem with this, the only "active" user of the rp3440 is
Aur=C3=A9lien, so I suppose it wouldn't be a problem. Yet, my understan=
ding
is that the rp3440 is extremely slow at building anything (much slower
than my other machines, it seems) because of the cache flush issues.
AIUI that's why Debian stuck to J6700 for buildds, because those
machines were a lot faster.

Other than that, the rp3440 currently runs unstable with 2.6.22.19, so
I suppose a complete reinstall would be in order, and I'm not sure I
have time to deal with that just yet. I'd be happy to provide remote
access to the machine though, if someone steps up. FWIW, the only
machine I have left running lenny is a J5000, 2x440MHz PA8500,
previously used as an autobuilder for debian-multimedia.org.

HTH,
T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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	dann frazier <dannf@dannf.org>, linux-parisc@vger.kernel.org,
	Aurelien Jarno <aurel32@debian.org>
To: Thibaut VARENE <T-Bone@parisc-linux.org>
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On Thu, Jul 7, 2011 at 11:49 AM, Thibaut VARENE <T-Bone@parisc-linux.or=
g> wrote:
> I have no problem with this, the only "active" user of the rp3440 is
> Aur=E9lien, so I suppose it wouldn't be a problem. Yet, my understand=
ing
> is that the rp3440 is extremely slow at building anything (much slowe=
r
> than my other machines, it seems) because of the cache flush issues.
> AIUI that's why Debian stuck to J6700 for buildds, because those
> machines were a lot faster.
>
> Other than that, the rp3440 currently runs unstable with 2.6.22.19, s=
o
> I suppose a complete reinstall would be in order, and I'm not sure I
> have time to deal with that just yet. I'd be happy to provide remote
> access to the machine though, if someone steps up. FWIW, the only
> machine I have left running lenny is a J5000, 2x440MHz PA8500,
> previously used as an autobuilder for debian-multimedia.org.

I can do the install and help monitor the box.

Aurelien,

Exactly what do we need installed for debian-ports?

Cheers,
Carlos.
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On Fri, May 27, 2011 at 5:35 PM, dann frazier <dannf@dannf.org> wrote:
> On Fri, May 27, 2011 at 04:20:46PM -0400, John David Anglin wrote:
>> On Fri, 27 May 2011, dann frazier wrote:
>>
>> > There are no buildds configured for building debian-ports yet, as far
>> > as I know.
>>
>> Will this happen?
>
> If there is interest/people willing to work towards maintaining a
> stable release off of debian-ports, I can setup/manage buildds to do
> so. But, I personally don't have interest in maintaining systems that
> run an unstable-only port.

FAOD. I think we will want to maintain a stable/testing release off of
debian-ports, and I'll step up to maintain that.

First though I think as an exercise to the reader we need to get our
machines setup and rolling with unstable to ensure we can continue to
build packages.

Cheers,
Carlos.
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On Thu, Jul 07, 2011 at 05:49:36PM +0200, Thibaut VARENE wrote:
> On Thu, Jul 7, 2011 at 1:20 AM, John David Anglin
> <dave.anglin@nrc-cnrc.gc.ca> wrote:
> > Hi Thibaut,
> >
> > On 13-Jun-11, at 6:19 PM, Thibaut VARENE wrote:
> >
> >>> I would say your other machines need updating even if the process=
 is
> >>> somewhat rocky as that's the only way a broadbased release can be=
 tested.
> >>
> >> Well I can assign one machine (the a500, being easy to reboot/fix =
as
> >> it is) to testing kernels, but for a stable kernel suitable for th=
e
> >> machines I'm e.g. assigning to the GCC Compile Farm[0], what would=
 be
> >> a good SMP kernel version to choose? I'm looking for the same leve=
l of
> >> hassle-freeness as 2.6.22.19 since these machines are under relati=
vely
> >> heavy load and I cannot afford to tend to their care on a daily ba=
sis
> >> ;-)
> >
> > Sorry for the delay in responding. =A0I think assigning the a500 to=
 the GCC
> > farm
> > provides good visibility. =A0For GCC, the kernel version doesn't ma=
tter much.
> > =A0The
> > main issue is stability.
>=20
> OK, so I suppose it's fine to stick with 2.6.22.19? I thought there
> were issues with un-implemented syscalls and such, so I don't really
> know...
>=20
> > I was wondering if the rp3440 in the ESIEE might be assigned to run=
ning
> > debian
> > buildd. =A0I believe that the current set of known kernel patches w=
ill make
> > this
> > machine reasonably stable under medium load. =A0Carlos recently fou=
nd a big
> > bug in the kernel futex code. =A0In any case, I recently successful=
ly built
> > many
> > unstable packages on my rp3440.
> >
> > I would be willing to help getting this going.
>=20
> I have no problem with this, the only "active" user of the rp3440 is
> Aur=E9lien, so I suppose it wouldn't be a problem. Yet, my understand=
ing
> is that the rp3440 is extremely slow at building anything (much slowe=
r
> than my other machines, it seems) because of the cache flush issues.
> AIUI that's why Debian stuck to J6700 for buildds, because those
> machines were a lot faster.

I don't think speed was really a concern - it was more hardware
availability and some hand-wavy belief that these machines would be
more stable.

Honestly, the most reliable build machine I've used is my
C3700. I don't recall ever having any build issues with
that. Anything it gives up in speed is definitely outweighed by
having to e.g. retry gcc 5 times before succeeding. By the end of the
port, I'd normally handbuild new gcc uploads here to avoid thrashing
on the real buildds. If given the option, I'd recommend 3 of those
boxes for a buildd ring.

> Other than that, the rp3440 currently runs unstable with 2.6.22.19, s=
o
> I suppose a complete reinstall would be in order, and I'm not sure I
> have time to deal with that just yet. I'd be happy to provide remote
> access to the machine though, if someone steps up. FWIW, the only
> machine I have left running lenny is a J5000, 2x440MHz PA8500,
> previously used as an autobuilder for debian-multimedia.org.
>=20
> HTH,
> T-Bone
>=20
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On 7/7/2011 11:49 AM, Thibaut VARENE wrote:
>
> I have no problem with this, the only "active" user of the rp3440 is
> Aur=C3=A9lien, so I suppose it wouldn't be a problem. Yet, my underst=
anding
> is that the rp3440 is extremely slow at building anything (much slowe=
r
> than my other machines, it seems) because of the cache flush issues.
> AIUI that's why Debian stuck to J6700 for buildds, because those
> machines were a lot faster.

The rp3440 isn't bad for non trivial compilations.  At -j4, my 800 MHz=20
rp3440 is the fastest
machine that I have for building GCC.  It stumbles running the testsuit=
e=20
where it falls behind
my c3750.  The cache flush problem slows forks.  If this could be=20
resolved, the machine
could handle significantly larger loads than the J6700.

> Other than that, the rp3440 currently runs unstable with 2.6.22.19, s=
o
> I suppose a complete reinstall would be in order, and I'm not sure I
> have time to deal with that just yet. I'd be happy to provide remote
> access to the machine though, if someone steps up. FWIW, the only
> machine I have left running lenny is a J5000, 2x440MHz PA8500,
> previously used as an autobuilder for debian-multimedia.org.
The kernel on the rp3440 needs updating.  2.6.22.19 is not stable under=
=20
load.  To do this,
remote access to the console would be needed.  Many bugs have been fixe=
d=20
since
2.6.22.19, and I think many packages may not test successfully without=20
updating the
kernel and build environment.

I have done this manually on my rp3440 for quite a few packages.

Dave

--=20
John David Anglin    dave.anglin@bell.net

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On 7/7/2011 12:18 PM, dann frazier wrote:
> On Thu, Jul 07, 2011 at 05:49:36PM +0200, Thibaut VARENE wrote:
>> On Thu, Jul 7, 2011 at 1:20 AM, John David Anglin
>> <dave.anglin@nrc-cnrc.gc.ca>  wrote:
>>> Hi Thibaut,
>>>
>>> On 13-Jun-11, at 6:19 PM, Thibaut VARENE wrote:
>>>
>>>>> I would say your other machines need updating even if the process is
>>>>> somewhat rocky as that's the only way a broadbased release can be tested.
>>>> Well I can assign one machine (the a500, being easy to reboot/fix as
>>>> it is) to testing kernels, but for a stable kernel suitable for the
>>>> machines I'm e.g. assigning to the GCC Compile Farm[0], what would be
>>>> a good SMP kernel version to choose? I'm looking for the same level of
>>>> hassle-freeness as 2.6.22.19 since these machines are under relatively
>>>> heavy load and I cannot afford to tend to their care on a daily basis
>>>> ;-)
>>> Sorry for the delay in responding.  I think assigning the a500 to the GCC
>>> farm
>>> provides good visibility.  For GCC, the kernel version doesn't matter much.
>>>   The
>>> main issue is stability.
>> OK, so I suppose it's fine to stick with 2.6.22.19? I thought there
>> were issues with un-implemented syscalls and such, so I don't really
>> know...
>>
This comment was specific to building and testing GCC.  It currently 
takes slightly over
24 hours to build and test GCC trunk on my c3750.

> Honestly, the most reliable build machine I've used is my
> C3700. I don't recall ever having any build issues with
> that. Anything it gives up in speed is definitely outweighed by
> having to e.g. retry gcc 5 times before succeeding. By the end of the
> port, I'd normally handbuild new gcc uploads here to avoid thrashing
> on the real buildds. If given the option, I'd recommend 3 of those
> boxes for a buildd ring.
>
Based on my testing, it's no longer necessary to try 5 times before 
succeeding with rp3440.
I agree that the C37XX machines are very stable and don't suffer from 
the SMP/cache
issues present in the servers.  If the ring above could be arranged, 
that would be excellent.

Dave

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On 7/7/2011 11:29 AM, Carlos O'Donell wrote:
> Dave,
>
> FYI.
>
> PA should be sorting relocations in .rlea.dyn such that realtive
> relocations (DIR32) are listed first before opd relocs (PLABEL32).
I imagine that this shouldn't be too hard to implement.
> This is required for the dynamic linker in glibc to operate correctly.

Is this related to the initfini_array issue?

Dave

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On Thu, Jul 7, 2011 at 6:16 PM, John David Anglin <dave.anglin@bell.net=
> wrote:


> The kernel on the rp3440 needs updating. =C2=A02.6.22.19 is not stabl=
e under
> load. =C2=A0To do this,
> remote access to the console would be needed. =C2=A0Many bugs have be=
en fixed

Carlos has access to the ESIEE cluster already. I can set you up as
well, I just need a ssh pubkey and a preferred login.

HTH
T-Bone
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On Thu, Jul 07, 2011 at 12:03:48PM -0400, Carlos O'Donell wrote:
> On Thu, Jul 7, 2011 at 11:49 AM, Thibaut VARENE <T-Bone@parisc-linux.=
org> wrote:
> > I have no problem with this, the only "active" user of the rp3440 i=
s
> > Aur=E9lien, so I suppose it wouldn't be a problem. Yet, my understa=
nding
> > is that the rp3440 is extremely slow at building anything (much slo=
wer
> > than my other machines, it seems) because of the cache flush issues=
=2E
> > AIUI that's why Debian stuck to J6700 for buildds, because those
> > machines were a lot faster.
> >
> > Other than that, the rp3440 currently runs unstable with 2.6.22.19,=
 so
> > I suppose a complete reinstall would be in order, and I'm not sure =
I
> > have time to deal with that just yet. I'd be happy to provide remot=
e
> > access to the machine though, if someone steps up. FWIW, the only
> > machine I have left running lenny is a J5000, 2x440MHz PA8500,
> > previously used as an autobuilder for debian-multimedia.org.
>=20
> I can do the install and help monitor the box.
>=20
> Aurelien,
>=20
> Exactly what do we need installed for debian-ports?
>=20

All the list of things to provide for debian-ports are available from m=
y
previous post back in April:

  http://lists.debian.org/debian-hppa/2011/04/msg00026.html

Please note that the first point is not relevant anymore given that I
have done the import myself:

  http://lists.debian.org/debian-hppa/2011/05/msg00002.html

--=20
Aurelien Jarno	                        GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net
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On Thu, Jul 7, 2011 at 5:59 PM, Aurelien Jarno <aurel32@debian.org> wro=
te:
> All the list of things to provide for debian-ports are available from=
 my
> previous post back in April:
>
> =A0http://lists.debian.org/debian-hppa/2011/04/msg00026.html
>
> Please note that the first point is not relevant anymore given that I
> have done the import myself:
>
> =A0http://lists.debian.org/debian-hppa/2011/05/msg00002.html

- A place/way to fetch all the .deb that have to be import with the
  corresponding .changes.

This is done.

- List of persons who need to have access to the wanna-build interface.
  If some of them are not DD, please also provide mail/login/ssh key.

I would like to have access to the wanna-build interface.

I will have Dann Frazier send you my mail/login/ssh key as a signed ema=
il.

- List of persons who should be able to upload packages to the archive
  with the corresponding GPG keys (that should include buildds
  maintainers).

I will have Dann Frazier send you my GPG key in the same signed email.

- List of emails to be used as a contact point for alpha/hppa buildds
  and alpha/hppa related things.

In the email from Dann.

- List of buildds with their IP, SSH key and mail address.

What do you want installed on the buildds?

I've setup a buildd before, but the truth is that I had to crib the
information from various sources.

Is there actually a guide for this available anywhere?

Cheers,
Carlos.
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Subject: Re: Sort output dynamic relocations.
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On Thu, Jul 7, 2011 at 1:44 PM, John David Anglin <dave.anglin@bell.net> wrote:
> On 7/7/2011 11:29 AM, Carlos O'Donell wrote:
>>
>> Dave,
>>
>> FYI.
>>
>> PA should be sorting relocations in .rlea.dyn such that realtive
>> relocations (DIR32) are listed first before opd relocs (PLABEL32).
>
> I imagine that this shouldn't be too hard to implement.
>>
>> This is required for the dynamic linker in glibc to operate correctly.
>
> Is this related to the initfini_array issue?

No. It's an internal glibc issues. The OPD relocation code has a
relative relocation in it, and it crashes because the OPD relocs are
*before* the relative relocs, and it should be the other way around.
We've just gotten lucky.

I have not seen any initfini_array issues, perhaps because I'm using
glibc git head which might have a generic fix for that, I saw some
related patches go into head.

Cheers,
Carlos.
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Am Mittwoch 06 Juli 2011, 00:17:03 schrieben Sie:
> On Tue, Jul 5, 2011 at 1:51 PM, Rolf Eike Beer <eike@sf-mail.de> wrote:
> > Am Dienstag 05 Juli 2011, 19:28:35 schrieben Sie:
> >> On Mon, Jul 4, 2011 at 2:59 PM, Carlos O'Donell
> >> <carlos@systemhalted.org>
> >=20
> > wrote:
> >> > On Mon, Jul 4, 2011 at 2:50 PM, John David Anglin
> >> > <dave.anglin@bell.net>
> >=20
> > wrote:
> >> >> The Linux man page says the mprotect addr must be a valid pointer or
> >> >> a multiple of PAGESIZE.
> >> >> It's not clear what the mprotect call is trying to protect but it is
> >> >> definitely not page aligned.
> >> >=20
> >> > It's trying to protect the new stack for the thread, which is
> >> > obviously in the wrong spot.
> >>=20
> >> Good news.
> >>=20
> >> I have fixed tst-cputimer1.
> >=20
> > You also wrote "OK, fixed the kernel." So where an when will these fixes
> > show up?
>=20
> Unfortunately I hosed my setup and I didn't have git installed to make
> a proper diff so here's a diff versus a somewhat recent tree.
>=20
>  WIP patch: http://www.parisc-linux.org/~carlos/futex.diff

Half of your diff (e.g. the int->u32 conversion) is already in upstream. I'=
ve=20
rediffed it against Linus tree and fixed some of the whitespace damage.

Eike

--Boundary-01=_7txFOAxfc+I3rVU
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=46rom 26950303065f2d1d5e36bbb818d3ee8621a6fc2c Mon Sep 17 00:00:00 2001
=46rom: Carlos O'Donell <carlos@systemhalted.org>
Date: Fri, 8 Jul 2011 09:42:31 +0200
Subject: [PATCH] fix futexes

Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
=2D--
 arch/parisc/include/asm/futex.h |   65 +++++++++++++++++++++++++++++++++++=
+---
 1 files changed, 60 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/fute=
x.h
index 67a33cc..3008d06 100644
=2D-- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -5,11 +5,14 @@
=20
 #include <linux/futex.h>
 #include <linux/uaccess.h>
+#include <asm/atomic.h>
 #include <asm/errno.h>
=20
 static inline int
 futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 {
+	unsigned long int flags;
+	u32 val;
 	int op =3D (encoded_op >> 28) & 7;
 	int cmp =3D (encoded_op >> 24) & 15;
 	int oparg =3D (encoded_op << 8) >> 20;
@@ -23,16 +26,53 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uad=
dr)
=20
 	pagefault_disable();
=20
+	_atomic_spin_lock_irqsave(uaddr, flags);
+
 	switch (op) {
 	case FUTEX_OP_SET:
+		/* *(int *)UADDR2 =3D OPARG; */
+		ret =3D get_user(oldval, uaddr);
+		if (!ret)
+			ret =3D put_user(oparg, uaddr);
+		break;
 	case FUTEX_OP_ADD:
+		/* *(int *)UADDR2 +=3D OPARG; */
+		ret =3D get_user(oldval, uaddr);
+		if (!ret) {
+			val =3D oldval + oparg;
+			ret =3D put_user(val, uaddr);
+		}
+		break;
 	case FUTEX_OP_OR:
+		/* *(int *)UADDR2 |=3D OPARG; */
+		ret =3D get_user(oldval, uaddr);
+		if (!ret) {
+			val =3D oldval | oparg;
+			ret =3D put_user(val, uaddr);
+		}
+		break;
 	case FUTEX_OP_ANDN:
+		/* *(int *)UADDR2 &=3D ~OPARG; */
+		ret =3D get_user(oldval, uaddr);
+		if (!ret) {
+			val =3D oldval & ~oparg;
+			ret =3D put_user(val, uaddr);
+		}
+		break;
 	case FUTEX_OP_XOR:
+		/* *(int *)UADDR2 ^=3D OPARG; */
+		ret =3D get_user(oldval, uaddr);
+		if (!ret) {
+			val =3D oldval ^ oparg;
+			ret =3D put_user(val, uaddr);
+		}
+		break;
 	default:
 		ret =3D -ENOSYS;
 	}
=20
+	_atomic_spin_unlock_irqrestore(uaddr, flags);
+
 	pagefault_enable();
=20
 	if (!ret) {
@@ -54,7 +94,9 @@ static inline int
 futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 			      u32 oldval, u32 newval)
 {
+	int ret;
 	u32 val;
+	unsigned long flags;
=20
 	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
 	 * our gateway page, and causes no end of trouble...
@@ -65,12 +107,25 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *u=
addr,
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
 		return -EFAULT;
=20
=2D	if (get_user(val, uaddr))
=2D		return -EFAULT;
=2D	if (val =3D=3D oldval && put_user(newval, uaddr))
=2D		return -EFAULT;
+	/* HPPA has no cmpxchg in hardware and therefore the
+	 * best we can do here is use an array of locks. The
+	 * lock selected is based on a hash of the userspace
+	 * address. This should scale to a couple of CPUs.
+	 */
+
+	_atomic_spin_lock_irqsave(uaddr, flags);
+
+	ret =3D get_user(val, uaddr);
+
+	if (!ret)
+		if (val =3D=3D oldval)
+			ret =3D put_user(newval, uaddr);
+
 	*uval =3D val;
=2D	return 0;
+
+	_atomic_spin_unlock_irqrestore(uaddr, flags);
+
+	return ret;
 }
=20
 #endif /*__KERNEL__*/
=2D-=20
1.7.6


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From - Thu Nov 08 21:07:27 2018
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X-Mozilla-Keys:                                                                                 
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: tst-cputimer1 and tst-timer4
Date: Fri, 08 Jul 2011 11:18:33 -0400
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References: <CADZpyizeDz0mRxLU3-Scx37DZ4jYMtKBjQn6_ZfxMyjhsT6Lkg@mail.gmail.com> <201107051951.16931.eike@sf-mail.de> <CADZpyiyi8=FY-2ihDq0RnXt5BZ3H09pSN1bYCHvQuFTvroCyrQ@mail.gmail.com> <201107081700.19668.eike-kernel@sf-tec.de>
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 7/8/2011 11:00 AM, Rolf Eike Beer wrote:
> Am Mittwoch 06 Juli 2011, 00:17:03 schrieben Sie:
>> On Tue, Jul 5, 2011 at 1:51 PM, Rolf Eike Beer<eike@sf-mail.de>  wrote:
>>> Am Dienstag 05 Juli 2011, 19:28:35 schrieben Sie:
>>>> On Mon, Jul 4, 2011 at 2:59 PM, Carlos O'Donell
>>>> <carlos@systemhalted.org>
>>> wrote:
>>>>> On Mon, Jul 4, 2011 at 2:50 PM, John David Anglin
>>>>> <dave.anglin@bell.net>
>>> wrote:
>>>>>> The Linux man page says the mprotect addr must be a valid pointer or
>>>>>> a multiple of PAGESIZE.
>>>>>> It's not clear what the mprotect call is trying to protect but it is
>>>>>> definitely not page aligned.
>>>>> It's trying to protect the new stack for the thread, which is
>>>>> obviously in the wrong spot.
>>>> Good news.
>>>>
>>>> I have fixed tst-cputimer1.
>>> You also wrote "OK, fixed the kernel." So where an when will these fixes
>>> show up?
>> Unfortunately I hosed my setup and I didn't have git installed to make
>> a proper diff so here's a diff versus a somewhat recent tree.
>>
>>   WIP patch: http://www.parisc-linux.org/~carlos/futex.diff
> Half of your diff (e.g. the int->u32 conversion) is already in upstream. I've
> rediffed it against Linus tree and fixed some of the whitespace damage.
>
> Eike

+	if (!ret)
+		if (val == oldval)
+			ret = put_user(newval, uaddr);

This bit is ugly.

Dave

-- 
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From - Thu Nov 08 21:07:27 2018
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Subject: Status of hppa on debian-ports.
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The current status of hppa on debian-ports is available here:

http://wiki.parisc-linux.org/Debian_Ports

Cheers,
Carlos.
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From - Thu Nov 08 21:07:28 2018
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On Friday, July 08, 2011 16:29:15 Carlos O'Donell wrote:
> The current status of hppa on debian-ports is available here:
>=20
> http://wiki.parisc-linux.org/Debian_Ports

the page is apparently marked immutable, otherwise i'd fix the typo:
	Not a debian developers.
=2Dmike

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From - Thu Nov 08 21:07:28 2018
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On 7/8/2011 4:29 PM, Carlos O'Donell wrote:
> The current status of hppa on debian-ports is available here:
>
> http://wiki.parisc-linux.org/Debian_Ports

We need contacts for the buildds machines.  These need to be local to
the machine unless remote console access is available.

Dave

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From: Carlos O'Donell <carlos@systemhalted.org>
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Subject: [PATCH 2.6.39-rc3] parsic: Fix futex support
Date: Fri, 08 Jul 2011 17:27:00 -0400
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Implements futex op support and makes futex cmpxchg atomic.
Tested on 64-bit SMP kernel running on 2 x PA8700s.

Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
---
 futex.h |   64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 59 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 67a33cc..94f2f4d 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -5,11 +5,14 @@
 
 #include <linux/futex.h>
 #include <linux/uaccess.h>
+#include <asm/atomic.h>
 #include <asm/errno.h>
 
 static inline int
 futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 {
+	unsigned long int flags;
+	u32 val;
 	int op = (encoded_op >> 28) & 7;
 	int cmp = (encoded_op >> 24) & 15;
 	int oparg = (encoded_op << 8) >> 20;
@@ -23,16 +26,53 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_disable();
 
+	_atomic_spin_lock_irqsave (uaddr, flags);
+
 	switch (op) {
 	case FUTEX_OP_SET:
+		/* *(int *)UADDR2 = OPARG; */
+		ret = get_user (oldval, uaddr);
+		if (!ret)
+			ret = put_user (oparg, uaddr);
+		break;
 	case FUTEX_OP_ADD:
+		/* *(int *)UADDR2 += OPARG; */
+		ret = get_user (oldval, uaddr);
+		if (!ret) {
+			val = oldval + oparg;
+			ret = put_user (val, uaddr);
+		}
+		break;
 	case FUTEX_OP_OR:
+		/* *(int *)UADDR2 |= OPARG; */
+		ret = get_user (oldval, uaddr);
+		if (!ret) {
+			val = oldval | oparg;
+			ret = put_user (val, uaddr);
+		}
+		break;
 	case FUTEX_OP_ANDN:
+		/* *(int *)UADDR2 &= ~OPARG; */
+		ret = get_user (oldval, uaddr);
+		if (!ret) {
+			val = oldval & ~oparg;
+			ret = put_user (val, uaddr);
+		}
+		break;
 	case FUTEX_OP_XOR:
+		/* *(int *)UADDR2 ^= OPARG; */
+		ret = get_user (oldval, uaddr);
+		if (!ret) {
+			val = oldval ^ oparg;
+			ret = put_user (val, uaddr);
+		}
+		break;
 	default:
 		ret = -ENOSYS;
 	}
 
+	_atomic_spin_unlock_irqrestore (uaddr, flags);
+
 	pagefault_enable();
 
 	if (!ret) {
@@ -54,7 +94,9 @@ static inline int
 futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 			      u32 oldval, u32 newval)
 {
+	int ret;
 	u32 val;
+	unsigned long flags;
 
 	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
 	 * our gateway page, and causes no end of trouble...
@@ -65,12 +107,24 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
 		return -EFAULT;
 
-	if (get_user(val, uaddr))
-		return -EFAULT;
-	if (val == oldval && put_user(newval, uaddr))
-		return -EFAULT;
+	/* HPPA has no cmpxchg in hardware and therefore the 
+	 * best we can do here is use an array of locks. The
+	 * lock selected is based on a hash of the userspace
+	 * address. This should scale to a couple of CPUs.
+	 */
+
+	_atomic_spin_lock_irqsave (uaddr, flags);
+
+	ret = get_user(val, uaddr);
+
+	if (!ret && val == oldval)
+		ret = put_user (newval, uaddr);
+
 	*uval = val;
-	return 0;
+
+	_atomic_spin_unlock_irqrestore (uaddr, flags);
+
+	return ret;
 }
 
 #endif /*__KERNEL__*/
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From - Thu Nov 08 21:07:28 2018
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On Friday, July 08, 2011 16:54:32 Mike Frysinger wrote:
> On Friday, July 08, 2011 16:29:15 Carlos O'Donell wrote:
> > The current status of hppa on debian-ports is available here:
> >=20
> > http://wiki.parisc-linux.org/Debian_Ports
>=20
> the page is apparently marked immutable, otherwise i'd fix the typo:
> 	Not a debian developers.

or maybe it's just my new account as all pages seem to be immutable ...
=2Dmike

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From - Thu Nov 08 21:07:28 2018
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On Friday, July 08, 2011 17:27:00 Carlos O'Donell wrote:
> Implements futex op support and makes futex cmpxchg atomic.
> Tested on 64-bit SMP kernel running on 2 x PA8700s.

seems like all the changes to this func are arch-independent and could be=20
placed into asm-generic/futex.h.  the current parisc futex.h looks like a c=
opy=20
of the asm-generic one ...
=2Dmike

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On 7/8/2011 5:42 PM, Mike Frysinger wrote:
> On Friday, July 08, 2011 17:27:00 Carlos O'Donell wrote:
>> Implements futex op support and makes futex cmpxchg atomic.
>> Tested on 64-bit SMP kernel running on 2 x PA8700s.
> 
> seems like all the changes to this func are arch-independent and could be 
> placed into asm-generic/futex.h.  the current parisc futex.h looks like a copy 
> of the asm-generic one ...
> -mike

That's true. I didn't want to rock the boat on this one until
I hammered out all the userspace testing.

Cheers,
Carlos.
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On Fri, Jul 8, 2011 at 11:30 PM, Mike Frysinger <vapier@gentoo.org> wro=
te:
> On Friday, July 08, 2011 16:54:32 Mike Frysinger wrote:
>> On Friday, July 08, 2011 16:29:15 Carlos O'Donell wrote:
>> > The current status of hppa on debian-ports is available here:
>> >
>> > http://wiki.parisc-linux.org/Debian_Ports
>>
>> the page is apparently marked immutable, otherwise i'd fix the typo:
>> =C2=A0 =C2=A0 =C2=A0 Not a debian developers.
>
> or maybe it's just my new account as all pages seem to be immutable .=
=2E.
> -mike

What's your username? As explained here:
http://wiki.parisc-linux.org/WikiAccessPolicy

Someone already on the wiki needs to add you to the ACL.


--=20
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http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:07:29 2018
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On Fri, Jul 8, 2011 at 11:08 PM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
> On 7/8/2011 4:29 PM, Carlos O'Donell wrote:
>>
>> The current status of hppa on debian-ports is available here:
>>
>> http://wiki.parisc-linux.org/Debian_Ports
>
> We need contacts for the buildds machines. =C2=A0These need to be loc=
al to
> the machine unless remote console access is available.

There's a MP on the rp3440, fwiw.
HTH

--=20
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On Fri, Jul 8, 2011 at 18:21, Thibaut VARENE wrote:
> On Fri, Jul 8, 2011 at 11:30 PM, Mike Frysinger wrote:
>> On Friday, July 08, 2011 16:54:32 Mike Frysinger wrote:
>>> On Friday, July 08, 2011 16:29:15 Carlos O'Donell wrote:
>>> > The current status of hppa on debian-ports is available here:
>>> >
>>> > http://wiki.parisc-linux.org/Debian_Ports
>>>
>>> the page is apparently marked immutable, otherwise i'd fix the typo=
:
>>> =A0 =A0 =A0 Not a debian developers.
>>
>> or maybe it's just my new account as all pages seem to be immutable =
=2E..
>
> What's your username?

it said to use first/last name, so i'm MikeFrysinger

> As explained here:
> http://wiki.parisc-linux.org/WikiAccessPolicy
>
> Someone already on the wiki needs to add you to the ACL.

is there really a spam problem to not open it up to registered users ?
-mike
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On Sat, Jul 9, 2011 at 8:32 AM, Mike Frysinger <vapier@gentoo.org> wrot=
e:
> On Fri, Jul 8, 2011 at 18:21, Thibaut VARENE wrote:
>> On Fri, Jul 8, 2011 at 11:30 PM, Mike Frysinger wrote:
>>> On Friday, July 08, 2011 16:54:32 Mike Frysinger wrote:
>>>> On Friday, July 08, 2011 16:29:15 Carlos O'Donell wrote:
>>>> > The current status of hppa on debian-ports is available here:
>>>> >
>>>> > http://wiki.parisc-linux.org/Debian_Ports
>>>>
>>>> the page is apparently marked immutable, otherwise i'd fix the typ=
o:
>>>> =C2=A0 =C2=A0 =C2=A0 Not a debian developers.
>>>
>>> or maybe it's just my new account as all pages seem to be immutable=
 ...
>>
>> What's your username?
>
> it said to use first/last name, so i'm MikeFrysinger

Added.

>> As explained here:
>> http://wiki.parisc-linux.org/WikiAccessPolicy
>>
>> Someone already on the wiki needs to add you to the ACL.
>
> is there really a spam problem to not open it up to registered users =
?

No. The WikiAccessPolicy page is full of lies and this system is only
there to annoy people...
:-/

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:07:29 2018
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On Sat, Jul 9, 2011 at 05:07, Thibaut VARENE wrote:
> On Sat, Jul 9, 2011 at 8:32 AM, Mike Frysinger wrote:
>> On Fri, Jul 8, 2011 at 18:21, Thibaut VARENE wrote:
>>> What's your username?
>>
>> it said to use first/last name, so i'm MikeFrysinger
>
> Added.

thanks

>>> As explained here:
>>> http://wiki.parisc-linux.org/WikiAccessPolicy
>>>
>>> Someone already on the wiki needs to add you to the ACL.
>>
>> is there really a spam problem to not open it up to registered users ?
>
> No. The WikiAccessPolicy page is full of lies and this system is only
> there to annoy people...
> :-/

ah, well i hope the source of these lies is punished severely ;x
-mike
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From - Thu Nov 08 21:07:29 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Sort output dynamic relocations.
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On 7-Jul-11, at 7:13 PM, Carlos O'Donell wrote:

> On Thu, Jul 7, 2011 at 1:44 PM, John David Anglin <dave.anglin@bell.net 
> > wrote:
>> On 7/7/2011 11:29 AM, Carlos O'Donell wrote:
>>>
>>> Dave,
>>>
>>> FYI.
>>>
>>> PA should be sorting relocations in .rlea.dyn such that realtive
>>> relocations (DIR32) are listed first before opd relocs (PLABEL32).
>>
>> I imagine that this shouldn't be too hard to implement.


As far as I can tell, most targets don't sort dynamic relocations.   
The exceptions
that I see are mips and score.  Doing this will increase link time, so  
I tend to think
it should be avoided if possible.  Isn't the dynamic loader a special  
case?

Have you tried the ld "-z combreloc" option to see if that works?  It  
combines
reloc sections and sorts them.

If "-z combreloc" doesn't produce the right order, then we will need  
something
similar to elf_hppa_sort_unwind().  elfxx-mips.c has a compare function
sort_dynamic_relocs.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Sat, Jul 9, 2011 at 11:08 AM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
> As far as I can tell, most targets don't sort dynamic relocations. =A0=
The
> exceptions that I see are mips and score. =A0Doing this will increase=
 link time, so I
> tend to think it should be avoided if possible. =A0Isn't the dynamic =
loader a special case?

Ulrich Drepper says that relative relocations must *always* be first,
it doesn't require a complete sort.

The dynamic loader is a special case, but there are some requirements.

> Have you tried the ld "-z combreloc" option to see if that works? =A0=
It
> combines reloc sections and sorts them.

I haven't tried that yet, are you saying we should change binutils to
*default* to "-z combreloc?"

> If "-z combreloc" doesn't produce the right order, then we will need
> something similar to elf_hppa_sort_unwind(). =A0elfxx-mips.c has a co=
mpare function
> sort_dynamic_relocs.

That sounds like a good place to start if the latter fails.

Cheers,
Carlos.
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On Sat, Jul 09, 2011 at 11:07:03AM +0200, Thibaut VARENE wrote:
...
> > is there really a spam problem to not open it up to registered users ?
> 
> No. The WikiAccessPolicy page is full of lies and this system is only
> there to annoy people...
> :-/

Sorry Mike. We did have a real spam problem with the wiki several
few years ago. IIRC it was someone from China was getting paid to
place links and abused parisc-linux wiki in the process.

cheers,
grant
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On 7/10/2011 9:27 PM, Carlos O'Donell wrote:
> On Sat, Jul 9, 2011 at 11:08 AM, John David Anglin<dave.anglin@bell.net>  wrote:
>> As far as I can tell, most targets don't sort dynamic relocations.  The
>> exceptions that I see are mips and score.  Doing this will increase link time, so I
>> tend to think it should be avoided if possible.  Isn't the dynamic loader a special case?
> Ulrich Drepper says that relative relocations must *always* be first,
> it doesn't require a complete sort.
>
I'm not knowledgeable about x86 but I don't believe it has a relocation 
equivalent to the
PLABEL32 reloc.  Everything in .rel.dyn may be relative.  However, 
R_386_RELATIVE
seems to occur before R_386_GLOB_DATA.  I'm not sure how this is done.

If we need to sort, combreloc may need to be disabled because it might 
do an incompatible
sort.

> The dynamic loader is a special case, but there are some requirements.
>
>> Have you tried the ld "-z combreloc" option to see if that works?  It
>> combines reloc sections and sorts them.
> I haven't tried that yet, are you saying we should change binutils to
> *default* to "-z combreloc?"
No.  I was just thinking of trying to link the dynamic loader with this 
option.  Didn't notice
any other targets making it the default.

Dave

-- 
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On 7/11/2011 9:33 AM, John David Anglin wrote:
> On 7/10/2011 9:27 PM, Carlos O'Donell wrote:
>> On Sat, Jul 9, 2011 at 11:08 AM, John David
>> Anglin<dave.anglin@bell.net>  wrote:
>>> As far as I can tell, most targets don't sort dynamic
>>> relocations.  The exceptions that I see are mips and score.
>>> Doing this will increase link time, so I tend to think it should
>>> be avoided if possible.  Isn't the dynamic loader a special
>>> case?
>> Ulrich Drepper says that relative relocations must *always* be
>> first, it doesn't require a complete sort.
>> 
> I'm not knowledgeable about x86 but I don't believe it has a
> relocation equivalent to the PLABEL32 reloc.  Everything in .rel.dyn
> may be relative.  However, R_386_RELATIVE seems to occur before
> R_386_GLOB_DATA.  I'm not sure how this is done.

It might just be a happy accident of the input order.
 
> If we need to sort, combreloc may need to be disabled because it
> might do an incompatible sort.

OK.
 
>> The dynamic loader is a special case, but there are some
>> requirements.
>> 
>>> Have you tried the ld "-z combreloc" option to see if that works?
>>> It combines reloc sections and sorts them.
>> I haven't tried that yet, are you saying we should change binutils
>> to *default* to "-z combreloc?"
> No.  I was just thinking of trying to link the dynamic loader with
> this option.  Didn't notice any other targets making it the default.

Right! That's a good idea, I'll give this a try.

Yes, the dynamic linker is the only thing that has this requirement.

Cheers,
Carlos.

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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH 2.6.39-rc3] parsic: Fix futex support
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Tested on rp3440 with 3.0.0-rc6+.  Two full builds and checks of GCC  
have been done with
make -j6.  No anomalous behaviour was observed (i.e., this change may  
fix the gnat1 bug
that I previously reported).  Attached is full patch set used in  
testing.

Tested-by: John David Anglin <dave.anglin@bell.net>

On 8-Jul-11, at 5:27 PM, Carlos O'Donell wrote:

> Implements futex op support and makes futex cmpxchg atomic.
> Tested on 64-bit SMP kernel running on 2 x PA8700s.
>
> Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
> ---
> futex.h |   64 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 
> +++++-----
> 1 file changed, 59 insertions(+), 5 deletions(-)
>
> diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/ 
> asm/futex.h
> index 67a33cc..94f2f4d 100644
> --- a/arch/parisc/include/asm/futex.h
> +++ b/arch/parisc/include/asm/futex.h
> @@ -5,11 +5,14 @@
>
> #include <linux/futex.h>
> #include <linux/uaccess.h>
> +#include <asm/atomic.h>
> #include <asm/errno.h>
>
> static inline int
> futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
> {
> +	unsigned long int flags;
> +	u32 val;
> 	int op = (encoded_op >> 28) & 7;
> 	int cmp = (encoded_op >> 24) & 15;
> 	int oparg = (encoded_op << 8) >> 20;
> @@ -23,16 +26,53 @@ futex_atomic_op_inuser (int encoded_op, u32  
> __user *uaddr)
>
> 	pagefault_disable();
>
> +	_atomic_spin_lock_irqsave (uaddr, flags);
> +
> 	switch (op) {
> 	case FUTEX_OP_SET:
> +		/* *(int *)UADDR2 = OPARG; */
> +		ret = get_user (oldval, uaddr);
> +		if (!ret)
> +			ret = put_user (oparg, uaddr);
> +		break;
> 	case FUTEX_OP_ADD:
> +		/* *(int *)UADDR2 += OPARG; */
> +		ret = get_user (oldval, uaddr);
> +		if (!ret) {
> +			val = oldval + oparg;
> +			ret = put_user (val, uaddr);
> +		}
> +		break;
> 	case FUTEX_OP_OR:
> +		/* *(int *)UADDR2 |= OPARG; */
> +		ret = get_user (oldval, uaddr);
> +		if (!ret) {
> +			val = oldval | oparg;
> +			ret = put_user (val, uaddr);
> +		}
> +		break;
> 	case FUTEX_OP_ANDN:
> +		/* *(int *)UADDR2 &= ~OPARG; */
> +		ret = get_user (oldval, uaddr);
> +		if (!ret) {
> +			val = oldval & ~oparg;
> +			ret = put_user (val, uaddr);
> +		}
> +		break;
> 	case FUTEX_OP_XOR:
> +		/* *(int *)UADDR2 ^= OPARG; */
> +		ret = get_user (oldval, uaddr);
> +		if (!ret) {
> +			val = oldval ^ oparg;
> +			ret = put_user (val, uaddr);
> +		}
> +		break;
> 	default:
> 		ret = -ENOSYS;
> 	}
>
> +	_atomic_spin_unlock_irqrestore (uaddr, flags);
> +
> 	pagefault_enable();
>
> 	if (!ret) {
> @@ -54,7 +94,9 @@ static inline int
> futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
> 			      u32 oldval, u32 newval)
> {
> +	int ret;
> 	u32 val;
> +	unsigned long flags;
>
> 	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
> 	 * our gateway page, and causes no end of trouble...
> @@ -65,12 +107,24 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32  
> __user *uaddr,
> 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
> 		return -EFAULT;
>
> -	if (get_user(val, uaddr))
> -		return -EFAULT;
> -	if (val == oldval && put_user(newval, uaddr))
> -		return -EFAULT;
> +	/* HPPA has no cmpxchg in hardware and therefore the
> +	 * best we can do here is use an array of locks. The
> +	 * lock selected is based on a hash of the userspace
> +	 * address. This should scale to a couple of CPUs.
> +	 */
> +
> +	_atomic_spin_lock_irqsave (uaddr, flags);
> +
> +	ret = get_user(val, uaddr);
> +
> +	if (!ret && val == oldval)
> +		ret = put_user (newval, uaddr);
> +
> 	*uval = val;
> -	return 0;
> +
> +	_atomic_spin_unlock_irqrestore (uaddr, flags);
> +
> +	return ret;
> }
>
> #endif /*__KERNEL__*/
> --
> To unsubscribe from this list: send the line "unsubscribe linux- 
> parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
Dave
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diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index f819559..26fd114 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -259,10 +259,10 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 
 #define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
 
-static __inline__ int
+static __inline__ s64
 __atomic64_add_return(s64 i, atomic64_t *v)
 {
-	int ret;
+	s64 ret;
 	unsigned long flags;
 	_atomic_spin_lock_irqsave(v, flags);
 
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 67a33cc..94f2f4d 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -5,11 +5,14 @@
 
 #include <linux/futex.h>
 #include <linux/uaccess.h>
+#include <asm/atomic.h>
 #include <asm/errno.h>
 
 static inline int
 futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 {
+	unsigned long int flags;
+	u32 val;
 	int op = (encoded_op >> 28) & 7;
 	int cmp = (encoded_op >> 24) & 15;
 	int oparg = (encoded_op << 8) >> 20;
@@ -23,16 +26,53 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_disable();
 
+	_atomic_spin_lock_irqsave (uaddr, flags);
+
 	switch (op) {
 	case FUTEX_OP_SET:
+		/* *(int *)UADDR2 = OPARG; */
+		ret = get_user (oldval, uaddr);
+		if (!ret)
+			ret = put_user (oparg, uaddr);
+		break;
 	case FUTEX_OP_ADD:
+		/* *(int *)UADDR2 += OPARG; */
+		ret = get_user (oldval, uaddr);
+		if (!ret) {
+			val = oldval + oparg;
+			ret = put_user (val, uaddr);
+		}
+		break;
 	case FUTEX_OP_OR:
+		/* *(int *)UADDR2 |= OPARG; */
+		ret = get_user (oldval, uaddr);
+		if (!ret) {
+			val = oldval | oparg;
+			ret = put_user (val, uaddr);
+		}
+		break;
 	case FUTEX_OP_ANDN:
+		/* *(int *)UADDR2 &= ~OPARG; */
+		ret = get_user (oldval, uaddr);
+		if (!ret) {
+			val = oldval & ~oparg;
+			ret = put_user (val, uaddr);
+		}
+		break;
 	case FUTEX_OP_XOR:
+		/* *(int *)UADDR2 ^= OPARG; */
+		ret = get_user (oldval, uaddr);
+		if (!ret) {
+			val = oldval ^ oparg;
+			ret = put_user (val, uaddr);
+		}
+		break;
 	default:
 		ret = -ENOSYS;
 	}
 
+	_atomic_spin_unlock_irqrestore (uaddr, flags);
+
 	pagefault_enable();
 
 	if (!ret) {
@@ -54,7 +94,9 @@ static inline int
 futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 			      u32 oldval, u32 newval)
 {
+	int ret;
 	u32 val;
+	unsigned long flags;
 
 	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
 	 * our gateway page, and causes no end of trouble...
@@ -65,12 +107,24 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
 		return -EFAULT;
 
-	if (get_user(val, uaddr))
-		return -EFAULT;
-	if (val == oldval && put_user(newval, uaddr))
-		return -EFAULT;
+	/* HPPA has no cmpxchg in hardware and therefore the 
+	 * best we can do here is use an array of locks. The
+	 * lock selected is based on a hash of the userspace
+	 * address. This should scale to a couple of CPUs.
+	 */
+
+	_atomic_spin_lock_irqsave (uaddr, flags);
+
+	ret = get_user(val, uaddr);
+
+	if (!ret && val == oldval)
+		ret = put_user (newval, uaddr);
+
 	*uval = val;
-	return 0;
+
+	_atomic_spin_unlock_irqrestore (uaddr, flags);
+
+	return ret;
 }
 
 #endif /*__KERNEL__*/
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 83335f3..1449259 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -75,14 +75,16 @@ EXPORT_SYMBOL(flush_cache_all_local);
 void
 update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
 {
-	struct page *page = pte_page(*ptep);
+        unsigned long pfn = pte_pfn(*ptep);
+        struct page *page;
 
-	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
-	    test_bit(PG_dcache_dirty, &page->flags)) {
+        if (!pfn_valid(pfn))
+                return;
 
-		flush_kernel_dcache_page(page);
-		clear_bit(PG_dcache_dirty, &page->flags);
-	} else if (parisc_requires_coherency())
+        page = pfn_to_page(pfn);
+
+        if (test_and_clear_bit(PG_dcache_dirty, &page->flags)
+	    || parisc_requires_coherency())
 		flush_kernel_dcache_page(page);
 }
 
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..0299d63 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
 {
 	local_irq_disable();	/* PARANOID - should already be disabled */
 	mtctl(~0UL, 23);	/* EIRR : clear all pending external intr */
-	claim_cpu_irqs();
 #ifdef CONFIG_SMP
-	if (!cpu_eiem)
+	if (!cpu_eiem) {
+		claim_cpu_irqs();
 		cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+	}
 #else
+	claim_cpu_irqs();
 	cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..f0cb56e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index d5a3009..0e6d33d 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -531,6 +531,7 @@ out_eoi:
 void
 handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 {
+	struct irqaction *action;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	kstat_incr_irqs_this_cpu(irq, desc);
@@ -538,7 +539,9 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 	if (chip->irq_ack)
 		chip->irq_ack(&desc->irq_data);
 
-	handle_irq_event_percpu(desc, desc->action);
+	action = desc->action;
+	if (action)
+		handle_irq_event_percpu(desc, action);
 
 	if (chip->irq_eoi)
 		chip->irq_eoi(&desc->irq_data);

--Apple-Mail-1--742775489
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From - Thu Nov 08 21:07:30 2018
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From: Sergei Shtylyov <sshtylyov@mvista.com>
Newsgroups: gmane.linux.ide,gmane.linux.ports.parisc
Subject: Re: [PATCH 0/2] fix libata-sff and pata_cmd64x to not crash on boot
 on parisc
Date: Fri, 15 Jul 2011 19:45:56 +0400
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
	linux-ide <linux-ide@vger.kernel.org>,
	Parisc List <linux-parisc@vger.kernel.org>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
	Sergei Shtylyov <sshtylyov@mvista.com>
To: Jeff Garzik <jeff@garzik.org>
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Hello.

Jeff Garzik wrote:

>> On Sun, 2011-04-24 at 14:28 -0500, James Bottomley wrote:
>>> currently libata-sff is completely ignoring the enabled/disabled status
>>> of the interfaces.  This is a real problem on parisc because if you
>>> touch a non responding memory area (i.e. a disabled interface) you crash
>>> the box.

>>> Fix by checking the CNTRL bits to see if the port is enabled before
>>> trying to poke it.

>> Ping on this.

>> Since 1/2 is an essential fix to prevent a boot panic on parisc, I can
>> just take them through the parisc tree.

> It's in libata-dev.git#upstream and #NEXT (linux-next) at present.

    I'm wondering about the other drivers that check the channel enable bits in 
their prereset() methods. James has shown that such code would still crash on 
such platforms as PARISC (I suspect many more platfroms which don't silently 
ignore the target aborts in the PCI space like x86 does). I think all such 
drivers should be converted to the early port disable detection scheme used in 
the pata_cmd64x driver (an some others)...

>     Jeff

WBR, Sergei

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From - Thu Nov 08 21:07:30 2018
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From: Aurelien Jarno <aurel32@debian.org>
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Cc: Thibaut VARENE <T-Bone@parisc-linux.org>,
	John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
	dann frazier <dannf@dannf.org>, linux-parisc@vger.kernel.org
To: Carlos O'Donell <carlos@systemhalted.org>
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On Thu, Jul 07, 2011 at 07:02:28PM -0400, Carlos O'Donell wrote:
> On Thu, Jul 7, 2011 at 5:59 PM, Aurelien Jarno <aurel32@debian.org> w=
rote:
> > All the list of things to provide for debian-ports are available fr=
om my
> > previous post back in April:
> >
> > =A0http://lists.debian.org/debian-hppa/2011/04/msg00026.html
> >
> > Please note that the first point is not relevant anymore given that=
 I
> > have done the import myself:
> >
> > =A0http://lists.debian.org/debian-hppa/2011/05/msg00002.html
>=20
> - A place/way to fetch all the .deb that have to be import with the
>   corresponding .changes.
>=20
> This is done.
>=20
> - List of persons who need to have access to the wanna-build interfac=
e.
>   If some of them are not DD, please also provide mail/login/ssh key.
>=20
> I would like to have access to the wanna-build interface.
>=20
> I will have Dann Frazier send you my mail/login/ssh key as a signed e=
mail.

Ok, will create that when I get the mail.

> - List of persons who should be able to upload packages to the archiv=
e
>   with the corresponding GPG keys (that should include buildds
>   maintainers).
>=20
> I will have Dann Frazier send you my GPG key in the same signed email=
=2E

Ditto.

> - List of emails to be used as a contact point for alpha/hppa buildds
>   and alpha/hppa related things.
>=20
> In the email from Dann.

Ditto.
=20
> - List of buildds with their IP, SSH key and mail address.
>=20
> What do you want installed on the buildds?

I personally don't really want to get anything installed. But to be
useful a buildd needs to be able to connect to the wanna-build db, send
the build logs, receive signed build logs by mail and upload packages.

> I've setup a buildd before, but the truth is that I had to crib the
> information from various sources.
>=20
> Is there actually a guide for this available anywhere?
>=20

You can use the setup guide from [1]. Basically you should change=20
debian.org by debian-ports.org and use the following sources.list
(or any of the corresponding mirrors [2]):

  deb http://ftp.debian-ports.org/debian sid main
  deb http://ftp.debian-ports.org/debian unreleased main
  deb-src http://ftp.debian.org/debian/ unstable main

  deb http://incoming.debian-ports.org/buildd unstable main
  deb-src http://incoming.debian-ports.org/buildd unstable main

Cheers,
Aurelien
 =20
[1] https://buildd.debian.org/docs/
[2] http://www.debian-ports.org/mirrors

--=20
Aurelien Jarno	                        GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH 2.6.39-rc3] parsic: Fix futex support
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Cc: Mike Frysinger <vapier@gentoo.org>,
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On 8-Jul-11, at 6:13 PM, Carlos O'Donell wrote:

> On 7/8/2011 5:42 PM, Mike Frysinger wrote:
>> On Friday, July 08, 2011 17:27:00 Carlos O'Donell wrote:
>>> Implements futex op support and makes futex cmpxchg atomic.
>>> Tested on 64-bit SMP kernel running on 2 x PA8700s.
>>
>> seems like all the changes to this func are arch-independent and  
>> could be
>> placed into asm-generic/futex.h.  the current parisc futex.h looks  
>> like a copy
>> of the asm-generic one ...
>> -mike
>
> That's true. I didn't want to rock the boat on this one until
> I hammered out all the userspace testing.


Do you have a userspace patch?  There was the thread stack allocation  
bug and possibly
futex related issues.

I can more or less consistently hpmc my rp3440 running the GCC libgomp  
testsuite with
3.0.0-rc7+.  Unfortunately, it seems hpmcs are somewhat deferred, so  
it's really hard to
to tell what's happening.  Usually, the machine hpmcs in the idle loop.

One instance seemed to have a corrupt user space stack pointer.   
Another instance
seemed to occur with inconsistent space registers in the kernel.   
Often two cpus check
almost simultaneously.  When this happens, both have the same "Assist  
Check" value
(space register).

The "Check Summary" is always 0x8400000000800000.  I think Kyle fixed  
one of these last March.
The cause was missing IPC system calls.  I'm a bit vague regarding  
whether the fix was installed
or not.

Dave
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Subject: Re: [PATCH 2.6.39-rc3] parsic: Fix futex support
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On Fri, Jul 22, 2011 at 5:51 PM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
> Do you have a userspace patch? =A0There was the thread stack allocati=
on bug
> and possibly futex related issues.

I do have a userspace patch, what would you like the patch against?

> The "Check Summary" is always 0x8400000000800000. =A0I think Kyle fix=
ed one of
> these last March.
> The cause was missing IPC system calls. =A0I'm a bit vague regarding =
whether
> the fix was installed
> or not.

I wouldn't expect a missing syscall to HPMC the machine, it should retu=
rn ENOSYS
and userspace should return a failure code... eventually something migh=
t fail to
check the function return and fail.

That's far from an HPMC though.

Cheers,
Carlos.
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Subject: Re: [PATCH 2.6.39-rc3] parsic: Fix futex support
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On 24-Jul-11, at 2:42 PM, Carlos O'Donell wrote:

> On Fri, Jul 22, 2011 at 5:51 PM, John David Anglin <dave.anglin@bell.net 
> > wrote:
>> Do you have a userspace patch?  There was the thread stack  
>> allocation bug
>> and possibly futex related issues.
>
> I do have a userspace patch, what would you like the patch against?

The current version is unstable or 2.11.2-10.

>
>> The "Check Summary" is always 0x8400000000800000.  I think Kyle  
>> fixed one of
>> these last March.
>> The cause was missing IPC system calls.  I'm a bit vague regarding  
>> whether
>> the fix was installed
>> or not.
>
> I wouldn't expect a missing syscall to HPMC the machine, it should  
> return ENOSYS
> and userspace should return a failure code... eventually something  
> might fail to
> check the function return and fail.
>
> That's far from an HPMC though.


Yah, I now think it was a matter of luck exposing the missing IPC calls.

I wish we knew how to decode the "Check Summary"  but I haven't found  
any documentation
on the net.  My current theory is the value indicates some kind of  
cache malfunction.  I suspect
that the corruption may occur during range based flushes due code  
containing inequivalent
aliases.  I think 0x2000000000000000 indicates a memory timeout.

I did find a small bug in flush_cache_range (sr3 has wrong type).  If  
I'm correct about the
problem being range based, this bug probably made things better by  
calling flush_cache_all
more frequently.

I have a whole collection of hpmcs and almost all have the same check  
summary.  It very
hard to see much consistency.  Many have hpmc's in the idle loop.  A  
couple have hpmc's
in flush_data_cache.  It's always possible that there is a hardware  
problem, but the problem
occurs so frequently in the libgomp testsuite that I have to think it  
is software triggered.
I haven't been able to trigger by running compilations or tests  
manually.

There must be some interconnection between the cores because a fault  
in one almost triggers
a TOC hpmc in the other.  The "Assist Check" value is a space register  
value and it's probably
the context of the process that caused the cache problem.

I'm currently running a test to check operation using mainly  
flush_instruction_cache and
flush_data_cache (whole cache flushes).  So far, it hasn't hpmc'd in  
the libgomp testsuite,
but it's very slooooow.

I plan to rebuild the main packages used in the libgomp testsuite to  
see if this helps.

Dave
--
John David Anglin	dave.anglin@bell.net



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Subject: [PATCH] fix atomic64 on PA-RISC
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Fix atomic64 on PA-RISC

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>

---
 arch/parisc/include/asm/atomic.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-3.0-devel/arch/parisc/include/asm/atomic.h
===================================================================
--- linux-3.0-devel.orig/arch/parisc/include/asm/atomic.h	2011-07-27 01:27:03.000000000 +0200
+++ linux-3.0-devel/arch/parisc/include/asm/atomic.h	2011-07-27 01:30:44.000000000 +0200
@@ -259,10 +259,10 @@ static __inline__ int atomic_add_unless(
 
 #define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
 
-static __inline__ int
+static __inline__ s64
 __atomic64_add_return(s64 i, atomic64_t *v)
 {
-	int ret;
+	s64 ret;
 	unsigned long flags;
 	_atomic_spin_lock_irqsave(v, flags);
 

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From: Matt Turner <mattst88@gmail.com>
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Subject: Re: [PATCH] fix atomic64 on PA-RISC
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On Tue, Jul 26, 2011 at 7:57 PM, Mikulas Patocka
<mikulas@artax.karlin.mff.cuni.cz> wrote:
> Fix atomic64 on PA-RISC
>
> Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
>
> ---
> =A0arch/parisc/include/asm/atomic.h | =A0 =A04 ++--
> =A01 file changed, 2 insertions(+), 2 deletions(-)
>
> Index: linux-3.0-devel/arch/parisc/include/asm/atomic.h
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> --- linux-3.0-devel.orig/arch/parisc/include/asm/atomic.h =A0 =A0 =A0=
 2011-07-27 01:27:03.000000000 +0200
> +++ linux-3.0-devel/arch/parisc/include/asm/atomic.h =A0 =A02011-07-2=
7 01:30:44.000000000 +0200
> @@ -259,10 +259,10 @@ static __inline__ int atomic_add_unless(
>
> =A0#define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
>
> -static __inline__ int
> +static __inline__ s64
> =A0__atomic64_add_return(s64 i, atomic64_t *v)
> =A0{
> - =A0 =A0 =A0 int ret;
> + =A0 =A0 =A0 s64 ret;
> =A0 =A0 =A0 =A0unsigned long flags;
> =A0 =A0 =A0 =A0_atomic_spin_lock_irqsave(v, flags);

An identical patch was sent on June 11, titled '[PATCH] parisc, fix
return type of __atomic64_add_return'. If it's not in James tree (or
upstream) by now, I'm not sure why.

Matt
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From: Sven Eckelmann <sven@narfation.org>
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	Randy Dunlap <rdunlap@xenotime.net>,
	Paul Mackerras <paulus@samba.org>, Helge Deller <deller@gmx.de>,
	sparclinux@vger.kernel.org, Sven Eckelmann <sven@narfation.org>,
	linux-s390@vger.kernel.org, Russell King <linux@arm.linux.org.uk>,
	user-mode-linux-devel@lists.sourceforge.net,
	Richard Weinberger <richard@nod.at>,
	Hirokazu Takata <takata@linux-m32r.org>, x86@kernel.org,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Ingo Molnar <mingo@redhat.com>, Matt Turner <mattst88@gmail.com>,
	Fenghua Yu <fenghua.yu@intel.com>, Arnd Bergmann <arnd@arndb.de>,
	Jeff Dike <jdike@addtoit.com>, Chris Metcalf <cmetcalf@tilera.com>,
	linux-m32r@ml.l
To: linux-arch@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/126704>

Introduce an *_dec_not_zero operation.  Make this a special case of
*_add_unless because batman-adv uses atomic_dec_not_zero in different
places like re-broadcast queue or aggregation queue management. There
are other non-final patches which may also want to use this macro.

Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux390@de.ibm.com
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-m32r@ml.linux-m32r.org
Cc: linux-m32r-ja@ml.linux-m32r.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: user-mode-linux-devel@lists.sourceforge.net
---
David S. Miller recommended this change in
 https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/2011-May/004560.html

Arnd Bergmann wanted to apply it in 201106172320.26476.arnd@arndb.de

... and then Arun Sharma created a big merge conflict with
https://lkml.org/lkml/2011/6/6/430

I don't think that it is a a good idea to asume that everyone still agrees
with the patch after I've rewritten it.

 Documentation/atomic_ops.txt       |    1 +
 arch/alpha/include/asm/atomic.h    |    1 +
 arch/alpha/include/asm/local.h     |    1 +
 arch/arm/include/asm/atomic.h      |    1 +
 arch/ia64/include/asm/atomic.h     |    1 +
 arch/m32r/include/asm/local.h      |    1 +
 arch/mips/include/asm/atomic.h     |    1 +
 arch/mips/include/asm/local.h      |    1 +
 arch/parisc/include/asm/atomic.h   |    1 +
 arch/powerpc/include/asm/atomic.h  |    1 +
 arch/powerpc/include/asm/local.h   |    1 +
 arch/s390/include/asm/atomic.h     |    1 +
 arch/sparc/include/asm/atomic_64.h |    1 +
 arch/tile/include/asm/atomic_32.h  |    1 +
 arch/tile/include/asm/atomic_64.h  |    1 +
 arch/um/sys-i386/atomic64_cx8_32.S |   28 ++++++++++++++++++++++++++++
 arch/x86/include/asm/atomic64_32.h |   12 ++++++++++++
 arch/x86/include/asm/atomic64_64.h |    1 +
 arch/x86/include/asm/local.h       |    1 +
 arch/x86/lib/atomic64_32.c         |    4 ++++
 arch/x86/lib/atomic64_386_32.S     |   21 +++++++++++++++++++++
 arch/x86/lib/atomic64_cx8_32.S     |   28 ++++++++++++++++++++++++++++
 include/asm-generic/atomic-long.h  |    2 ++
 include/asm-generic/atomic64.h     |    1 +
 include/asm-generic/local.h        |    1 +
 include/asm-generic/local64.h      |    2 ++
 include/linux/atomic.h             |    9 +++++++++
 27 files changed, 125 insertions(+), 0 deletions(-)

diff --git a/Documentation/atomic_ops.txt b/Documentation/atomic_ops.txt
index 3bd585b..1eec221 100644
--- a/Documentation/atomic_ops.txt
+++ b/Documentation/atomic_ops.txt
@@ -190,6 +190,7 @@ atomic_add_unless requires explicit memory barriers around the operation
 unless it fails (returns 0).
 
 atomic_inc_not_zero, equivalent to atomic_add_unless(v, 1, 0)
+atomic_dec_not_zero, equivalent to atomic_add_unless(v, -1, 0)
 
 
 If a caller requires memory barrier semantics around an atomic_t
diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
index 640f909..09d1571 100644
--- a/arch/alpha/include/asm/atomic.h
+++ b/arch/alpha/include/asm/atomic.h
@@ -225,6 +225,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
 #define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0)
diff --git a/arch/alpha/include/asm/local.h b/arch/alpha/include/asm/local.h
index 9c94b84..51eb678 100644
--- a/arch/alpha/include/asm/local.h
+++ b/arch/alpha/include/asm/local.h
@@ -79,6 +79,7 @@ static __inline__ long local_sub_return(long i, local_t * l)
 	c != (u);						\
 })
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 #define local_add_negative(a, l) (local_add_return((a), (l)) < 0)
 
diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index 86976d0..80ed975 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -458,6 +458,7 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
 #define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1LL, 0LL)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
 
 #endif /* !CONFIG_GENERIC_ATOMIC64 */
 #endif
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
index 3fad89e..af6e9b2 100644
--- a/arch/ia64/include/asm/atomic.h
+++ b/arch/ia64/include/asm/atomic.h
@@ -122,6 +122,7 @@ static __inline__ long atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #define atomic_add_return(i,v)						\
 ({									\
diff --git a/arch/m32r/include/asm/local.h b/arch/m32r/include/asm/local.h
index 734bca8..d536082 100644
--- a/arch/m32r/include/asm/local.h
+++ b/arch/m32r/include/asm/local.h
@@ -272,6 +272,7 @@ static inline int local_add_unless(local_t *l, long a, long u)
 }
 
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 static inline void local_clear_mask(unsigned long  mask, local_t *addr)
 {
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
index 1d93f81..babb043 100644
--- a/arch/mips/include/asm/atomic.h
+++ b/arch/mips/include/asm/atomic.h
@@ -697,6 +697,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #define atomic64_dec_return(v) atomic64_sub_return(1, (v))
 #define atomic64_inc_return(v) atomic64_add_return(1, (v))
diff --git a/arch/mips/include/asm/local.h b/arch/mips/include/asm/local.h
index 94fde8d..0242256 100644
--- a/arch/mips/include/asm/local.h
+++ b/arch/mips/include/asm/local.h
@@ -137,6 +137,7 @@ static __inline__ long local_sub_return(long i, local_t * l)
 	c != (u);						\
 })
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 #define local_dec_return(l) local_sub_return(1, (l))
 #define local_inc_return(l) local_add_return(1, (l))
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index b1dc71f..8a50234 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -334,6 +334,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #endif /* !CONFIG_64BIT */
 
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index e2a4c26..c0131a6 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h
@@ -468,6 +468,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #endif /* __powerpc64__ */
 
diff --git a/arch/powerpc/include/asm/local.h b/arch/powerpc/include/asm/local.h
index b8da913..d182e34 100644
--- a/arch/powerpc/include/asm/local.h
+++ b/arch/powerpc/include/asm/local.h
@@ -134,6 +134,7 @@ static __inline__ int local_add_unless(local_t *l, long a, long u)
 }
 
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 #define local_sub_and_test(a, l)	(local_sub_return((a), (l)) == 0)
 #define local_dec_and_test(l)		(local_dec_return((l)) == 0)
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 8517d2a..92e7d5d 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -325,6 +325,7 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
 #define atomic64_dec_return(_v)		atomic64_sub_return(1, _v)
 #define atomic64_dec_and_test(_v)	(atomic64_sub_return(1, _v) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1, 0)
 
 #define smp_mb__before_atomic_dec()	smp_mb()
 #define smp_mb__after_atomic_dec()	smp_mb()
diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
index 9f421df..94cf160 100644
--- a/arch/sparc/include/asm/atomic_64.h
+++ b/arch/sparc/include/asm/atomic_64.h
@@ -106,6 +106,7 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 /* Atomic operations are already serializing */
 #define smp_mb__before_atomic_dec()	barrier()
diff --git a/arch/tile/include/asm/atomic_32.h b/arch/tile/include/asm/atomic_32.h
index c03349e..9cfafb3 100644
--- a/arch/tile/include/asm/atomic_32.h
+++ b/arch/tile/include/asm/atomic_32.h
@@ -233,6 +233,7 @@ static inline void atomic64_set(atomic64_t *v, u64 n)
 #define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1LL, 0LL)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
 
 /*
  * We need to barrier before modifying the word, since the _atomic_xxx()
diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h
index 27fe667..9c22f50 100644
--- a/arch/tile/include/asm/atomic_64.h
+++ b/arch/tile/include/asm/atomic_64.h
@@ -141,6 +141,7 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
 #define atomic64_add_negative(i, v)	(atomic64_add_return((i), (v)) < 0)
 
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1, 0)
 
 /* Atomic dec and inc don't implement barrier, so provide them if needed. */
 #define smp_mb__before_atomic_dec()	smp_mb()
diff --git a/arch/um/sys-i386/atomic64_cx8_32.S b/arch/um/sys-i386/atomic64_cx8_32.S
index 1e901d3..a58a1d4 100644
--- a/arch/um/sys-i386/atomic64_cx8_32.S
+++ b/arch/um/sys-i386/atomic64_cx8_32.S
@@ -223,3 +223,31 @@ ENTRY(atomic64_inc_not_zero_cx8)
 	jmp 3b
 	CFI_ENDPROC
 ENDPROC(atomic64_inc_not_zero_cx8)
+
+ENTRY(atomic64_dec_not_zero_cx8)
+	CFI_STARTPROC
+	SAVE ebx
+
+	read64 %esi
+1:
+	testl %eax, %eax
+	je 4f
+2:
+	movl %eax, %ebx
+	movl %edx, %ecx
+	subl $1, %ebx
+	sbbl $0, %ecx
+	LOCK_PREFIX
+	cmpxchg8b (%esi)
+	jne 1b
+
+	movl $1, %eax
+3:
+	RESTORE ebx
+	ret
+4:
+	testl %edx, %edx
+	jne 2b
+	jmp 3b
+	CFI_ENDPROC
+ENDPROC(atomic64_dec_not_zero_cx8)
diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
index 24098aa..3cd4431 100644
--- a/arch/x86/include/asm/atomic64_32.h
+++ b/arch/x86/include/asm/atomic64_32.h
@@ -287,6 +287,18 @@ static inline int atomic64_inc_not_zero(atomic64_t *v)
 	return r;
 }
 
+
+static inline int atomic64_dec_not_zero(atomic64_t *v)
+{
+	int r;
+	asm volatile(ATOMIC64_ALTERNATIVE(dec_not_zero)
+		     : "=a" (r)
+		     : "S" (v)
+		     : "ecx", "edx", "memory"
+		     );
+	return r;
+}
+
 static inline long long atomic64_dec_if_positive(atomic64_t *v)
 {
 	long long r;
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 017594d..93c9d8b 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -220,6 +220,7 @@ static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 /*
  * atomic64_dec_if_positive - decrement by 1 if old value positive
diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h
index 9cdae5d..2c8c92d 100644
--- a/arch/x86/include/asm/local.h
+++ b/arch/x86/include/asm/local.h
@@ -185,6 +185,7 @@ static inline long local_sub_return(long i, local_t *l)
 	c != (u);						\
 })
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 /* On x86_32, these are no better than the atomic variants.
  * On x86-64 these are better than the atomic variants on SMP kernels
diff --git a/arch/x86/lib/atomic64_32.c b/arch/x86/lib/atomic64_32.c
index 042f682..7da05c3 100644
--- a/arch/x86/lib/atomic64_32.c
+++ b/arch/x86/lib/atomic64_32.c
@@ -24,6 +24,8 @@ long long atomic64_dec_if_positive_cx8(atomic64_t *v);
 EXPORT_SYMBOL(atomic64_dec_if_positive_cx8);
 int atomic64_inc_not_zero_cx8(atomic64_t *v);
 EXPORT_SYMBOL(atomic64_inc_not_zero_cx8);
+int atomic64_dec_not_zero_cx8(atomic64_t *v);
+EXPORT_SYMBOL(atomic64_dec_not_zero_cx8);
 int atomic64_add_unless_cx8(atomic64_t *v, long long a, long long u);
 EXPORT_SYMBOL(atomic64_add_unless_cx8);
 
@@ -54,6 +56,8 @@ long long atomic64_dec_if_positive_386(atomic64_t *v);
 EXPORT_SYMBOL(atomic64_dec_if_positive_386);
 int atomic64_inc_not_zero_386(atomic64_t *v);
 EXPORT_SYMBOL(atomic64_inc_not_zero_386);
+int atomic64_dec_not_zero_386(atomic64_t *v);
+EXPORT_SYMBOL(atomic64_dec_not_zero_386);
 int atomic64_add_unless_386(atomic64_t *v, long long a, long long u);
 EXPORT_SYMBOL(atomic64_add_unless_386);
 #endif
diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S
index e8e7e0d..c78337b 100644
--- a/arch/x86/lib/atomic64_386_32.S
+++ b/arch/x86/lib/atomic64_386_32.S
@@ -181,6 +181,27 @@ ENDP
 #undef v
 
 #define v %esi
+BEGIN(dec_not_zero)
+	movl  (v), %eax
+	movl 4(v), %edx
+	testl %eax, %eax
+	je 3f
+1:
+	subl $1, %eax
+	sbbl $0, %edx
+	movl %eax,  (v)
+	movl %edx, 4(v)
+	movl $1, %eax
+2:
+	RET
+3:
+	testl %edx, %edx
+	jne 1b
+	jmp 2b
+ENDP
+#undef v
+
+#define v %esi
 BEGIN(dec_if_positive)
 	movl  (v), %eax
 	movl 4(v), %edx
diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
index 391a083..989638c 100644
--- a/arch/x86/lib/atomic64_cx8_32.S
+++ b/arch/x86/lib/atomic64_cx8_32.S
@@ -220,3 +220,31 @@ ENTRY(atomic64_inc_not_zero_cx8)
 	jmp 3b
 	CFI_ENDPROC
 ENDPROC(atomic64_inc_not_zero_cx8)
+
+ENTRY(atomic64_dec_not_zero_cx8)
+	CFI_STARTPROC
+	SAVE ebx
+
+	read64 %esi
+1:
+	testl %eax, %eax
+	je 4f
+2:
+	movl %eax, %ebx
+	movl %edx, %ecx
+	subl $1, %ebx
+	sbbl $0, %ecx
+	LOCK_PREFIX
+	cmpxchg8b (%esi)
+	jne 1b
+
+	movl $1, %eax
+3:
+	RESTORE ebx
+	ret
+4:
+	testl %edx, %edx
+	jne 2b
+	jmp 3b
+	CFI_ENDPROC
+ENDPROC(atomic64_dec_not_zero_cx8)
diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h
index b7babf0..0fe75ab 100644
--- a/include/asm-generic/atomic-long.h
+++ b/include/asm-generic/atomic-long.h
@@ -130,6 +130,7 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
 }
 
 #define atomic_long_inc_not_zero(l) atomic64_inc_not_zero((atomic64_t *)(l))
+#define atomic_long_dec_not_zero(l) atomic64_dec_not_zero((atomic64_t *)(l))
 
 #define atomic_long_cmpxchg(l, old, new) \
 	(atomic64_cmpxchg((atomic64_t *)(l), (old), (new)))
@@ -247,6 +248,7 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
 }
 
 #define atomic_long_inc_not_zero(l) atomic_inc_not_zero((atomic_t *)(l))
+#define atomic_long_dec_not_zero(l) atomic_dec_not_zero((atomic_t *)(l))
 
 #define atomic_long_cmpxchg(l, old, new) \
 	(atomic_cmpxchg((atomic_t *)(l), (old), (new)))
diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
index b18ce4f..90ff9b1 100644
--- a/include/asm-generic/atomic64.h
+++ b/include/asm-generic/atomic64.h
@@ -38,5 +38,6 @@ extern int	 atomic64_add_unless(atomic64_t *v, long long a, long long u);
 #define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v) 	atomic64_add_unless((v), 1LL, 0LL)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
 
 #endif  /*  _ASM_GENERIC_ATOMIC64_H  */
diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
index 9ceb03b..fabf4f3 100644
--- a/include/asm-generic/local.h
+++ b/include/asm-generic/local.h
@@ -44,6 +44,7 @@ typedef struct
 #define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n))
 #define local_add_unless(l, _a, u) atomic_long_add_unless((&(l)->a), (_a), (u))
 #define local_inc_not_zero(l) atomic_long_inc_not_zero(&(l)->a)
+#define local_dec_not_zero(l) atomic_long_dec_not_zero(&(l)->a)
 
 /* Non-atomic variants, ie. preemption disabled and won't be touched
  * in interrupt, etc.  Some archs can optimize this case well. */
diff --git a/include/asm-generic/local64.h b/include/asm-generic/local64.h
index 5980002..76acbe2 100644
--- a/include/asm-generic/local64.h
+++ b/include/asm-generic/local64.h
@@ -45,6 +45,7 @@ typedef struct {
 #define local64_xchg(l, n)	local_xchg((&(l)->a), (n))
 #define local64_add_unless(l, _a, u) local_add_unless((&(l)->a), (_a), (u))
 #define local64_inc_not_zero(l)	local_inc_not_zero(&(l)->a)
+#define local64_dec_not_zero(l)	local_dec_not_zero(&(l)->a)
 
 /* Non-atomic variants, ie. preemption disabled and won't be touched
  * in interrupt, etc.  Some archs can optimize this case well. */
@@ -83,6 +84,7 @@ typedef struct {
 #define local64_xchg(l, n)	atomic64_xchg((&(l)->a), (n))
 #define local64_add_unless(l, _a, u) atomic64_add_unless((&(l)->a), (_a), (u))
 #define local64_inc_not_zero(l)	atomic64_inc_not_zero(&(l)->a)
+#define local64_dec_not_zero(l)	atomic64_dec_not_zero(&(l)->a)
 
 /* Non-atomic variants, ie. preemption disabled and won't be touched
  * in interrupt, etc.  Some archs can optimize this case well. */
diff --git a/include/linux/atomic.h b/include/linux/atomic.h
index 42b77b5..ad2b750 100644
--- a/include/linux/atomic.h
+++ b/include/linux/atomic.h
@@ -27,6 +27,15 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
 #define atomic_inc_not_zero(v)		atomic_add_unless((v), 1, 0)
 
 /**
+ * atomic_dec_not_zero - decrement unless the number is zero
+ * @v: pointer of type atomic_t
+ *
+ * Atomically decrements @v by 1, so long as @v is non-zero.
+ * Returns non-zero if @v was non-zero, and zero otherwise.
+ */
+#define atomic_dec_not_zero(v)		atomic_add_unless((v), -1, 0)
+
+/**
  * atomic_inc_not_zero_hint - increment if not null
  * @v: pointer of type atomic_t
  * @hint: probable value of the atomic before the increment
-- 
1.7.5.4

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drivers/char/ramoops.c: In function 'ramoops_init':
drivers/char/ramoops.c:221: error: implicit declaration of function 'IS_ERR'
drivers/char/ramoops.c:222: error: implicit declaration of function 'PTR_ERR'

If it actually builds on other platforms, it's probably getting
linux/err.h via some other #include.

Signed-off-by: James Bottomley <JBottomley@Parallels.com>

---

diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c
index bd9b94b..fca0c51 100644
--- a/drivers/char/ramoops.c
+++ b/drivers/char/ramoops.c
@@ -22,6 +22,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/kernel.h>
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/kmsg_dump.h>
 #include <linux/time.h>


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Subject: sungem: fix compile failure caused by trivial #include
 consolidation
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This patch:

commit e44ba033c5654dbfda53461c9b1f7dd9bd1d198f
Author: Vitaliy Ivanov <vitalivanov@gmail.com>
Date:   Mon Jun 20 16:08:07 2011 +0200

    treewide: remove duplicate includes

Causes this compile failure on parisc:

  CC [M]  drivers/net/sungem.o
drivers/net/sungem.c:49:22: error: asm/prom.h: No such file or directory
make[2]: *** [drivers/net/sungem.o] Error 1

Only Sparc and PPC actually have the asm/prom.h include, so you can't
consolidate it outside of the ifdefs.

Signed-off-by: James Bottomley <JBottomley@Parallels.com>

---

This really shouldn't be happening with a trivial patch, since it's an
obviously non-trivial transformation ... I assume the duplicate include
checker isn't taking #ifdefs into account?

James

commit e44ba033c5654dbfda53461c9b1f7dd9bd1d198f
Author: Vitaliy Ivanov <vitalivanov@gmail.com>
Date:   Mon Jun 20 16:08:07 2011 +0200

    treewide: remove duplicate includes
    
    Many stupid corrections of duplicated includes based on the output of
    scripts/checkincludes.pl.
    
    Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com>
    Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/net/sungem.c b/drivers/net/sungem.c
index ab59300..70f018d 100644
--- a/drivers/net/sungem.c
+++ b/drivers/net/sungem.c
@@ -66,15 +66,14 @@
 #include <asm/byteorder.h>
 #include <asm/uaccess.h>
 #include <asm/irq.h>
+#include <asm/prom.h>
 
 #ifdef CONFIG_SPARC
 #include <asm/idprom.h>
-#include <asm/prom.h>
 #endif
 
 #ifdef CONFIG_PPC_PMAC
 #include <asm/pci-bridge.h>
-#include <asm/prom.h>
 #include <asm/machdep.h>
 #include <asm/pmac_feature.h>
 #endif


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Subject: Re: sungem: fix compile failure caused by trivial #include
 consolidation
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On Fri, 29 Jul 2011, James Bottomley wrote:

> This patch:
> 
> commit e44ba033c5654dbfda53461c9b1f7dd9bd1d198f
> Author: Vitaliy Ivanov <vitalivanov@gmail.com>
> Date:   Mon Jun 20 16:08:07 2011 +0200
> 
>     treewide: remove duplicate includes
> 
> Causes this compile failure on parisc:
> 
>   CC [M]  drivers/net/sungem.o
> drivers/net/sungem.c:49:22: error: asm/prom.h: No such file or directory
> make[2]: *** [drivers/net/sungem.o] Error 1
> 
> Only Sparc and PPC actually have the asm/prom.h include, so you can't
> consolidate it outside of the ifdefs.
> 
> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
> 
> ---
> 
> This really shouldn't be happening with a trivial patch, since it's an
> obviously non-trivial transformation ... I assume the duplicate include
> checker isn't taking #ifdefs into account?

Ah, right. I am afraid this was simply overlooked. David, do you want me 
to take this, or will you fix that up in your tree? (I am fine either 
way).

Thanks,

-- 
Jiri Kosina
SUSE Labs
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 consolidation
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From: Jiri Kosina <jkosina@suse.cz>
Date: Fri, 29 Jul 2011 16:11:54 +0200 (CEST)

> On Fri, 29 Jul 2011, James Bottomley wrote:
> 
>> This patch:
>> 
>> commit e44ba033c5654dbfda53461c9b1f7dd9bd1d198f
>> Author: Vitaliy Ivanov <vitalivanov@gmail.com>
>> Date:   Mon Jun 20 16:08:07 2011 +0200
>> 
>>     treewide: remove duplicate includes
>> 
>> Causes this compile failure on parisc:
>> 
>>   CC [M]  drivers/net/sungem.o
>> drivers/net/sungem.c:49:22: error: asm/prom.h: No such file or directory
>> make[2]: *** [drivers/net/sungem.o] Error 1
>> 
>> Only Sparc and PPC actually have the asm/prom.h include, so you can't
>> consolidate it outside of the ifdefs.
>> 
>> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
>> 
>> ---
>> 
>> This really shouldn't be happening with a trivial patch, since it's an
>> obviously non-trivial transformation ... I assume the duplicate include
>> checker isn't taking #ifdefs into account?
> 
> Ah, right. I am afraid this was simply overlooked. David, do you want me 
> to take this, or will you fix that up in your tree? (I am fine either 
> way).

Take what, although James signed off he seemd to simply repost your
patch again rather than a fix, unless I'm reading it wrong :-)

But yeah once there is a fix please push it.
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From - Thu Nov 08 21:07:31 2018
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From: Jiri Kosina <jkosina@suse.cz>
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Subject: Re: sungem: fix compile failure caused by trivial #include
 consolidation
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On Fri, 29 Jul 2011, David Miller wrote:

> >> This patch:
> >> 
> >> commit e44ba033c5654dbfda53461c9b1f7dd9bd1d198f
> >> Author: Vitaliy Ivanov <vitalivanov@gmail.com>
> >> Date:   Mon Jun 20 16:08:07 2011 +0200
> >> 
> >>     treewide: remove duplicate includes
> >> 
> >> Causes this compile failure on parisc:
> >> 
> >>   CC [M]  drivers/net/sungem.o
> >> drivers/net/sungem.c:49:22: error: asm/prom.h: No such file or directory
> >> make[2]: *** [drivers/net/sungem.o] Error 1
> >> 
> >> Only Sparc and PPC actually have the asm/prom.h include, so you can't
> >> consolidate it outside of the ifdefs.
> >> 
> >> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
> >> 
> >> ---
> >> 
> >> This really shouldn't be happening with a trivial patch, since it's an
> >> obviously non-trivial transformation ... I assume the duplicate include
> >> checker isn't taking #ifdefs into account?
> > 
> > Ah, right. I am afraid this was simply overlooked. David, do you want me 
> > to take this, or will you fix that up in your tree? (I am fine either 
> > way).
> 
> Take what, although James signed off he seemd to simply repost your
> patch again rather than a fix, unless I'm reading it wrong :-)

Well yes, I think that James wanted to actually send a revert of that 
patch (as otherwise he wouldn't Sign-off on it) instead, right James? :)

> But yeah once there is a fix please push it.

So I'll revert that hunk with James' Reported-by, if there are no 
objections.

Thanks,

-- 
Jiri Kosina
SUSE Labs
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From - Thu Nov 08 21:07:31 2018
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Subject: Re: sungem: fix compile failure caused by trivial #include
 consolidation
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On Fri, 2011-07-29 at 07:17 -0700, David Miller wrote:
> From: Jiri Kosina <jkosina@suse.cz>
> Date: Fri, 29 Jul 2011 16:11:54 +0200 (CEST)
> 
> > On Fri, 29 Jul 2011, James Bottomley wrote:
> > 
> >> This patch:
> >> 
> >> commit e44ba033c5654dbfda53461c9b1f7dd9bd1d198f
> >> Author: Vitaliy Ivanov <vitalivanov@gmail.com>
> >> Date:   Mon Jun 20 16:08:07 2011 +0200
> >> 
> >>     treewide: remove duplicate includes
> >> 
> >> Causes this compile failure on parisc:
> >> 
> >>   CC [M]  drivers/net/sungem.o
> >> drivers/net/sungem.c:49:22: error: asm/prom.h: No such file or directory
> >> make[2]: *** [drivers/net/sungem.o] Error 1
> >> 
> >> Only Sparc and PPC actually have the asm/prom.h include, so you can't
> >> consolidate it outside of the ifdefs.
> >> 
> >> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
> >> 
> >> ---
> >> 
> >> This really shouldn't be happening with a trivial patch, since it's an
> >> obviously non-trivial transformation ... I assume the duplicate include
> >> checker isn't taking #ifdefs into account?
> > 
> > Ah, right. I am afraid this was simply overlooked. David, do you want me 
> > to take this, or will you fix that up in your tree? (I am fine either 
> > way).
> 
> Take what, although James signed off he seemd to simply repost your
> patch again rather than a fix, unless I'm reading it wrong :-)

Oh, yes ... I applied it with patch -R, since I was finding the bit to
revert. Sorry,

James

> But yeah once there is a fix please push it.
> --
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Signed-off-by: James Bottomley <JBottomley@Parallels.com>

---

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 3392de3..276df1c 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -821,8 +821,10 @@
 #define __NR_open_by_handle_at	(__NR_Linux + 326)
 #define __NR_syncfs		(__NR_Linux + 327)
 #define __NR_setns		(__NR_Linux + 328)
+#define __NR_setns		(__NR_Linux + 328)
+#define __NR_sendmmsg		(__NR_Linux + 329)
 
-#define __NR_Linux_syscalls	(__NR_setns + 1)
+#define __NR_Linux_syscalls	(__NR_sendmmsg + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 34a4f5a..e66366f 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -427,6 +427,7 @@
 	ENTRY_COMP(open_by_handle_at)
 	ENTRY_SAME(syncfs)
 	ENTRY_SAME(setns)
+	ENTRY_COMP(sendmmsg)
 
 	/* Nothing yet */
 


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From: John David Anglin <dave.anglin@bell.net>
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With todays Linux kernel source tree, I'm seeing a spinlock lockup  
after the first CPU is brought up.  This
didn't happen with v3.0-rc7.  v3.0 stable also seems ok.

Attached .config and debug info.

Dave
--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-4-977747550
Content-Disposition: attachment; filename="config-3.0.0+"
Content-Type: application/octet-stream; x-unix-mode=0644;
	name="config-3.0.0+"
Content-Transfer-Encoding: 7bit

#
# Automatically generated file; DO NOT EDIT.
# Linux/parisc 3.0.0 Kernel Configuration
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_LOW_RES=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_HAVE_IRQ_WORK=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_FHANDLE is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_GENERIC_HARDIRQS=y

#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_PREEMPT_RCU is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=64
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=17
# CONFIG_CGROUPS is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EXPERT is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# CONFIG_PERF_COUNTERS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
CONFIG_COMPAT_BRK=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_USE_GENERIC_SMP_HELPERS=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
# CONFIG_INLINE_SPIN_UNLOCK is not set
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
# CONFIG_INLINE_SPIN_UNLOCK_IRQ is not set
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
# CONFIG_INLINE_READ_UNLOCK is not set
# CONFIG_INLINE_READ_UNLOCK_BH is not set
# CONFIG_INLINE_READ_UNLOCK_IRQ is not set
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
# CONFIG_INLINE_WRITE_UNLOCK is not set
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
# CONFIG_INLINE_WRITE_UNLOCK_IRQ is not set
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
# CONFIG_MUTEX_SPIN_ON_OWNER is not set
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=999999
# CONFIG_COMPACTION is not set
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
# CONFIG_CLEANCACHE is not set
CONFIG_COMPAT=y
CONFIG_NR_CPUS=32

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
# CONFIG_GSC_WAX is not set
# CONFIG_EISA is not set
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
CONFIG_PCI_IOV=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
# CONFIG_CHASSIS_LCD_LED is not set
# CONFIG_PDC_CHASSIS is not set
# CONFIG_PDC_CHASSIS_WARN is not set
# CONFIG_PDC_STABLE is not set

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=m
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=m
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
CONFIG_XFRM_SUB_POLICY=y
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_ROUTE_CLASSID=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
CONFIG_NET_IPIP=m
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=m
CONFIG_IPV6_PRIVACY=y
CONFIG_IPV6_ROUTER_PREF=y
# CONFIG_IPV6_ROUTE_INFO is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
# CONFIG_IPV6_MIP6 is not set
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=m
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NETFILTER_TPROXY is not set
CONFIG_NETFILTER_XTABLES=m

#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m

#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
# CONFIG_NETFILTER_XT_TARGET_TEE is not set
# CONFIG_NETFILTER_XT_TARGET_TRACE is not set
# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m

#
# Xtables matches
#
# CONFIG_NETFILTER_XT_MATCH_ADDRTYPE is not set
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CPU=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
# CONFIG_NETFILTER_XT_MATCH_DEVGROUP is not set
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set
CONFIG_NETFILTER_XT_MATCH_HL=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
# CONFIG_NETFILTER_XT_MATCH_OSF is not set
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# CONFIG_IP_SET is not set
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV4 is not set
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m

#
# IPv6: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV6 is not set
# CONFIG_IP6_NF_QUEUE is not set
# CONFIG_IP6_NF_IPTABLES is not set
CONFIG_IP_DCCP=m
CONFIG_INET_DCCP_DIAG=m

#
# DCCP CCIDs Configuration (EXPERIMENTAL)
#
# CONFIG_IP_DCCP_CCID2_DEBUG is not set
CONFIG_IP_DCCP_CCID3=y
# CONFIG_IP_DCCP_CCID3_DEBUG is not set
CONFIG_IP_DCCP_TFRC_LIB=y

#
# DCCP Kernel Hacking
#
# CONFIG_IP_DCCP_DEBUG is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_MSG is not set
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_HMAC_NONE is not set
CONFIG_SCTP_HMAC_SHA1=y
# CONFIG_SCTP_HMAC_MD5 is not set
# CONFIG_RDS is not set
CONFIG_TIPC=m
# CONFIG_TIPC_ADVANCED is not set
# CONFIG_TIPC_DEBUG is not set
# CONFIG_ATM is not set
CONFIG_L2TP=m
# CONFIG_L2TP_DEBUGFS is not set
# CONFIG_L2TP_V3 is not set
CONFIG_STP=m
CONFIG_GARP=m
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
# CONFIG_DECNET is not set
CONFIG_LLC=m
CONFIG_LLC2=m
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
# CONFIG_CFG80211 is not set
# CONFIG_LIB80211 is not set

#
# CFG80211 needs to be enabled for MAC80211
#
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_DEVTMPFS is not set
# CONFIG_STANDALONE is not set
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
# CONFIG_PARPORT_SERIAL is not set
CONFIG_PARPORT_PC_FIFO=y
CONFIG_PARPORT_PC_SUPERIO=y
CONFIG_PARPORT_GSC=m
# CONFIG_PARPORT_AX88796 is not set
# CONFIG_PARPORT_1284 is not set
CONFIG_PARPORT_NOT_PC=y
CONFIG_BLK_DEV=y
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_UMEM=m
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m

#
# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
#
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_SX8=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=6144
# CONFIG_BLK_DEV_XIP is not set
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
CONFIG_CDROM_PKTCDVD_WCACHE=y
CONFIG_ATA_OVER_ETH=m
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_SENSORS_LIS3LV02D is not set
CONFIG_MISC_DEVICES=y
# CONFIG_AD525X_DPOT is not set
# CONFIG_PHANTOM is not set
# CONFIG_INTEL_MID_PTI is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
CONFIG_ENCLOSURE_SERVICES=m
# CONFIG_HP_ILO is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1780 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_BMP085 is not set
# CONFIG_PCH_PHUB is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
CONFIG_EEPROM_AT24=m
CONFIG_EEPROM_LEGACY=m
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_SENSORS_LIS3_I2C is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=m
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=m
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m
# CONFIG_SCSI_MULTI_LUN is not set
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
# CONFIG_SCSI_SAS_ATA is not set
CONFIG_SCSI_SAS_HOST_SMP=y
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
CONFIG_ISCSI_TCP=m
CONFIG_ISCSI_BOOT_SYSFS=m
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_SCSI_BNX2X_FCOE is not set
# CONFIG_BE2ISCSI is not set
CONFIG_BLK_DEV_3W_XXXX_RAID=m
CONFIG_SCSI_HPSA=m
CONFIG_SCSI_3W_9XXX=m
CONFIG_SCSI_3W_SAS=m
# CONFIG_SCSI_ACARD is not set
CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_CMDS_PER_DEVICE=32
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
CONFIG_AIC7XXX_DEBUG_ENABLE=y
CONFIG_AIC7XXX_DEBUG_MASK=0
CONFIG_AIC7XXX_REG_PRETTY_PRINT=y
CONFIG_SCSI_AIC7XXX_OLD=m
CONFIG_SCSI_AIC79XX=m
CONFIG_AIC79XX_CMDS_PER_DEVICE=32
CONFIG_AIC79XX_RESET_DELAY_MS=15000
CONFIG_AIC79XX_DEBUG_ENABLE=y
CONFIG_AIC79XX_DEBUG_MASK=0
CONFIG_AIC79XX_REG_PRETTY_PRINT=y
CONFIG_SCSI_AIC94XX=m
CONFIG_AIC94XX_DEBUG=y
CONFIG_SCSI_MVSAS=m
CONFIG_SCSI_MVSAS_DEBUG=y
# CONFIG_SCSI_MVSAS_TASKLET is not set
CONFIG_SCSI_DPT_I2O=m
# CONFIG_SCSI_ADVANSYS is not set
CONFIG_SCSI_ARCMSR=m
CONFIG_MEGARAID_NEWGEN=y
CONFIG_MEGARAID_MM=m
CONFIG_MEGARAID_MAILBOX=m
CONFIG_MEGARAID_LEGACY=m
CONFIG_MEGARAID_SAS=m
CONFIG_SCSI_MPT2SAS=m
CONFIG_SCSI_MPT2SAS_MAX_SGE=128
# CONFIG_SCSI_MPT2SAS_LOGGING is not set
# CONFIG_SCSI_HPTIOP is not set
CONFIG_LIBFC=m
CONFIG_LIBFCOE=m
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
CONFIG_SCSI_IPS=m
# CONFIG_SCSI_INITIO is not set
CONFIG_SCSI_INIA100=m
CONFIG_SCSI_PPA=m
CONFIG_SCSI_IMM=m
# CONFIG_SCSI_IZIP_EPP16 is not set
# CONFIG_SCSI_IZIP_SLOW_CTR is not set
CONFIG_SCSI_LASI700=m
CONFIG_53C700_LE_ON_BE=y
CONFIG_SCSI_STEX=m
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
CONFIG_SCSI_ZALON=m
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
CONFIG_SCSI_QLOGIC_1280=m
CONFIG_SCSI_QLA_FC=m
CONFIG_SCSI_QLA_ISCSI=m
CONFIG_SCSI_LPFC=m
# CONFIG_SCSI_LPFC_DEBUG_FS is not set
CONFIG_SCSI_DC395x=m
# CONFIG_SCSI_DC390T is not set
CONFIG_SCSI_DEBUG=m
# CONFIG_SCSI_PMCRAID is not set
CONFIG_SCSI_PM8001=m
# CONFIG_SCSI_SRP is not set
CONFIG_SCSI_BFA_FC=m
CONFIG_SCSI_DH=m
CONFIG_SCSI_DH_RDAC=m
CONFIG_SCSI_DH_HP_SW=m
CONFIG_SCSI_DH_EMC=m
CONFIG_SCSI_DH_ALUA=m
CONFIG_SCSI_OSD_INITIATOR=m
# CONFIG_SCSI_OSD_ULD is not set
CONFIG_SCSI_OSD_DPRINT_SENSE=1
# CONFIG_SCSI_OSD_DEBUG is not set
CONFIG_ATA=m
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
# CONFIG_ATA_PIIX is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
CONFIG_PATA_CMD64X=m
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CS5536 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
# CONFIG_MD_RAID456 is not set
CONFIG_MD_MULTIPATH=m
CONFIG_MD_FAULTY=m
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
# CONFIG_DM_RAID is not set
# CONFIG_DM_LOG_USERSPACE is not set
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
# CONFIG_DM_MULTIPATH_QL is not set
# CONFIG_DM_MULTIPATH_ST is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_UEVENT is not set
# CONFIG_DM_FLAKEY is not set
# CONFIG_TARGET_CORE is not set
CONFIG_FUSION=y
CONFIG_FUSION_SPI=m
CONFIG_FUSION_FC=m
CONFIG_FUSION_SAS=m
CONFIG_FUSION_MAX_SGE=128
CONFIG_FUSION_CTL=m
# CONFIG_FUSION_LOGGING is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_BONDING=m
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
CONFIG_MII=m
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
# CONFIG_BROADCOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
# CONFIG_LASI_82596 is not set
CONFIG_HAPPYMEAL=m
# CONFIG_SUNGEM is not set
CONFIG_CASSINI=m
CONFIG_NET_VENDOR_3COM=y
CONFIG_VORTEX=m
# CONFIG_TYPHOON is not set
# CONFIG_ETHOC is not set
# CONFIG_DNET is not set
CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_DE2104X_DSL=0
CONFIG_TULIP=m
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_TULIP_NAPI is not set
CONFIG_DE4X5=m
CONFIG_WINBOND_840=m
# CONFIG_DM9102 is not set
CONFIG_ULI526X=m
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
CONFIG_PCNET32=m
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_B44=m
CONFIG_B44_PCI_AUTOSELECT=y
CONFIG_B44_PCICORE_AUTOSELECT=y
CONFIG_B44_PCI=y
CONFIG_FORCEDETH=m
CONFIG_E100=m
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_8139CP is not set
CONFIG_8139TOO=m
# CONFIG_8139TOO_PIO is not set
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_OLD_RX_RESET is not set
# CONFIG_R6040 is not set
CONFIG_SIS900=m
CONFIG_EPIC100=m
# CONFIG_SMSC9420 is not set
CONFIG_SUNDANCE=m
CONFIG_SUNDANCE_MMIO=y
CONFIG_TLAN=m
# CONFIG_KS8851_MLL is not set
CONFIG_VIA_RHINE=m
CONFIG_VIA_RHINE_MMIO=y
# CONFIG_SC92031 is not set
# CONFIG_NET_POCKET is not set
# CONFIG_ATL2 is not set
CONFIG_NETDEV_1000=y
CONFIG_ACENIC=m
# CONFIG_ACENIC_OMIT_TIGON_I is not set
# CONFIG_DL2K is not set
CONFIG_E1000=m
# CONFIG_E1000E is not set
# CONFIG_IP1000 is not set
CONFIG_IGB=m
# CONFIG_IGBVF is not set
# CONFIG_NS83820 is not set
CONFIG_HAMACHI=m
CONFIG_YELLOWFIN=m
# CONFIG_R8169 is not set
# CONFIG_SIS190 is not set
CONFIG_SKGE=m
# CONFIG_SKGE_DEBUG is not set
# CONFIG_SKGE_GENESIS is not set
# CONFIG_SKY2 is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_TIGON3=m
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_JME is not set
# CONFIG_STMMAC_ETH is not set
# CONFIG_PCH_GBE is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set
CONFIG_WLAN=y
# CONFIG_ATMEL is not set
# CONFIG_PRISM54 is not set
# CONFIG_HOSTAP is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set

#
# CAIF transport drivers
#
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPP_FILTER is not set
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
# CONFIG_PPPOL2TP is not set
# CONFIG_SLIP is not set
CONFIG_SLHC=m
# CONFIG_NET_FC is not set
CONFIG_NETCONSOLE=m
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=m
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_ATKBD_HP_KEYCODES is not set
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_TCA6416 is not set
CONFIG_KEYBOARD_HIL_OLD=m
CONFIG_KEYBOARD_HIL=m
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=m
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_SERIAL=m
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_MMA8450 is not set
# CONFIG_INPUT_MPU3050 is not set
# CONFIG_INPUT_KXTJ9 is not set
CONFIG_INPUT_UINPUT=m
CONFIG_HP_SDC_RTC=m
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_CMA3000 is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=m
CONFIG_SERIO_PARKBD=m
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=y
CONFIG_HIL_MLC=y
CONFIG_SERIO_PCIPS2=m
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
CONFIG_DEVKMEM=y

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
# CONFIG_SERIAL_8250_MANY_PORTS is not set
# CONFIG_SERIAL_8250_SHARE_IRQ is not set
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MFD_HSU is not set
# CONFIG_SERIAL_MUX is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_PCH_UART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
CONFIG_RAW_DRIVER=m
CONFIG_MAX_RAW_DEVS=256
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_RAMOOPS is not set
CONFIG_I2C=m
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_INTEL_MID is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PXA_PCI is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set
# CONFIG_I2C_EG20T is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set

#
# PPS support
#
# CONFIG_PPS is not set

#
# PPS generators support
#

#
# PTP clock support
#

#
# Enable Device Drivers -> PPS to see the PTP clock options.
#
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LTC4151 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6642 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_SCH5627 is not set
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_ADS1015 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
# CONFIG_SSB_B43_PCI_BRIDGE is not set
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set
CONFIG_MFD_SUPPORT=y
CONFIG_MFD_CORE=m
# CONFIG_MFD_SM501 is not set
CONFIG_HTC_PASIC3=m
# CONFIG_TPS6105X is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_PARISC=m
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_DRM is not set
# CONFIG_STUB_POULSBO is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
# CONFIG_FB_CFB_FILLRECT is not set
# CONFIG_FB_CFB_COPYAREA is not set
# CONFIG_FB_CFB_IMAGEBLIT is not set
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_WMT_GE_ROPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_STI is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_TMIO is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
# CONFIG_STI_CONSOLE is not set
CONFIG_FONTS=y
# CONFIG_FONT_8x8 is not set
CONFIG_FONT_8x16=y
# CONFIG_FONT_6x11 is not set
# CONFIG_FONT_7x14 is not set
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
# CONFIG_FONT_MINI_4x6 is not set
# CONFIG_FONT_SUN8x16 is not set
# CONFIG_FONT_SUN12x22 is not set
# CONFIG_FONT_10x18 is not set
# CONFIG_LOGO is not set
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
CONFIG_SOUND_OSS_CORE_PRECLAIM=y
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
CONFIG_SND_VERBOSE_PRINTK=y
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_RAWMIDI_SEQ=m
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_ALOOP is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
# CONFIG_SND_PORTMAN2X4 is not set
# CONFIG_SND_AC97_POWER_SAVE is not set
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
CONFIG_SND_HDSPM=m
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LOLA is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
CONFIG_SND_GSC=y
CONFIG_SND_HARMONY=m
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
CONFIG_HIDRAW=y
# CONFIG_HID_PID is not set

#
# Special HID drivers
#
# CONFIG_USB_SUPPORT is not set
CONFIG_UWB=m
CONFIG_UWB_WHCI=m
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
CONFIG_UIO=m
# CONFIG_UIO_CIF is not set
# CONFIG_UIO_PDRV is not set
# CONFIG_UIO_PDRV_GENIRQ is not set
# CONFIG_UIO_AEC is not set
# CONFIG_UIO_SERCOS3 is not set
# CONFIG_UIO_PCI_GENERIC is not set
# CONFIG_UIO_NETX is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_BALLOON is not set
# CONFIG_STAGING is not set
CONFIG_IOMMU_SUPPORT=y
# CONFIG_VIRT_DRIVERS is not set

#
# File systems
#
CONFIG_EXT2_FS=m
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=m
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_XATTR=y
# CONFIG_EXT3_FS_POSIX_ACL is not set
# CONFIG_EXT3_FS_SECURITY is not set
CONFIG_EXT4_FS=m
CONFIG_EXT4_FS_XATTR=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD=m
# CONFIG_JBD_DEBUG is not set
CONFIG_JBD2=m
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=m
CONFIG_REISERFS_FS=m
# CONFIG_REISERFS_CHECK is not set
CONFIG_REISERFS_PROC_INFO=y
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=m
# CONFIG_XFS_QUOTA is not set
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
# CONFIG_XFS_DEBUG is not set
# CONFIG_GFS2_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_NILFS2_FS=m
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=m
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
# CONFIG_CUSE is not set
CONFIG_GENERIC_ACL=y

#
# Caches
#
CONFIG_FSCACHE=m
# CONFIG_FSCACHE_STATS is not set
# CONFIG_FSCACHE_HISTOGRAM is not set
# CONFIG_FSCACHE_DEBUG is not set
# CONFIG_FSCACHE_OBJECT_LIST is not set
CONFIG_CACHEFILES=m
# CONFIG_CACHEFILES_DEBUG is not set
# CONFIG_CACHEFILES_HISTOGRAM is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_LOGFS is not set
CONFIG_CRAMFS=y
# CONFIG_SQUASHFS is not set
CONFIG_VXFS_FS=m
CONFIG_MINIX_FS=m
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
CONFIG_ROMFS_FS=m
CONFIG_ROMFS_BACKED_BY_BLOCK=y
CONFIG_ROMFS_ON_BLOCK=y
# CONFIG_PSTORE is not set
CONFIG_SYSV_FS=m
CONFIG_UFS_FS=m
# CONFIG_UFS_FS_WRITE is not set
# CONFIG_UFS_DEBUG is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_FSCACHE is not set
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
# CONFIG_NFSD_V4 is not set
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_LOCKUP_DETECTOR=y
# CONFIG_HARDLOCKUP_DETECTOR is not set
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE=1
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=1
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_PI_LIST=y
# CONFIG_RT_MUTEX_TESTER is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
# CONFIG_SPARSE_RCU_POINTER is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_DEBUG_PER_CPU_MAPS is not set
# CONFIG_LKDTM is not set
# CONFIG_CPU_NOTIFIER_ERROR_INJECT is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
# CONFIG_BUILD_DOCSRC is not set
# CONFIG_DYNAMIC_DEBUG is not set
CONFIG_ATOMIC64_SELFTEST=y
# CONFIG_SAMPLES is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_DEBUG_RODATA is not set
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=m
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_SEQIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_GHASH=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=m
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
# CONFIG_CRYPTO_CAMELLIA is not set
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
# CONFIG_CRYPTO_SEED is not set
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=m

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_HIFN_795X=m
# CONFIG_CRYPTO_DEV_HIFN_795X_RNG is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
CONFIG_CRC_T10DIF=m
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
# CONFIG_CRC8 is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=m
CONFIG_LZO_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CPU_RMAP=y
CONFIG_NLATTR=y
# CONFIG_AVERAGE is not set
# CONFIG_CORDIC is not set

--Apple-Mail-4-977747550
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=EF=BB=BF[deleted]
Calibrating delay loop... 1594.36 BogoMIPS (lpj=3D3188736)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 256
Brought up 1 CPUs
BUG: spinlock bad magic on CPU#0, kworker/u:0/10
 lock: 000000004059b130, .magic: 00000000, .owner: <none>/-1, =
.owner_cpu: 0
Backtrace:
 [<0000000040116370>] dump_stack+0x18/0x28
 [<00000000402d2db8>] spin_bug+0xd8/0x120
 [<00000000402d2eb4>] do_raw_spin_lock+0xb4/0x200
 [<000000004011a72c>] _raw_spin_lock_irqsave+0x2c/0x40
 [<0000000040119fc0>] __down_write_nested+0x30/0x150
 [<000000004011a0f4>] __down_write+0x14/0x20
 [<00000000401192ec>] down_write+0x3c/0x50
 [<000000004027d5bc>] exit_shm+0x2c/0x80
 [<000000004015c4bc>] do_exit+0x2e4/0x430
 [<0000000040171658>] ____call_usermodehelper+0x1c8/0x1e8
 [<000000004010407c>] ret_from_kernel_thread+0x24/0x40

BUG: spinlock lockup on CPU#0, kworker/u:0/10, 000000004059b130
Backtrace:
 [<0000000040116370>] dump_stack+0x18/0x28
 [<00000000402d2f40>] do_raw_spin_lock+0x140/0x200
 [<000000004011a72c>] _raw_spin_lock_irqsave+0x2c/0x40
 [<0000000040119fc0>] __down_write_nested+0x30/0x150
 [<000000004011a0f4>] __down_write+0x14/0x20
 [<00000000401192ec>] down_write+0x3c/0x50
 [<000000004027d5bc>] exit_shm+0x2c/0x80
 [<000000004015c4bc>] do_exit+0x2e4/0x430
 [<0000000040171658>] ____call_usermodehelper+0x1c8/0x1e8
 [<000000004010407c>] ret_from_kernel_thread+0x24/0x40


-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000040655a10  0000000040119af8  =
000000004058d228
04-07  0000000040638210  000000004058d228  000000004058d22c  =
0000000000000001
08-11  0000000000000000  0000000040521210  0000000000000001  =
0000000000000000
12-15  000000004068c3c0  0000000040655a10  ffffffffc0000000  =
0000000040126f80
16-19  000000007f0d4230  000000007f07ea90  0000000000000000  =
0000000000000001
20-23  000000000800000e  0000000040592ec0  0000000000000001  =
0000000040592ec0
24-27  0000000000000000  0000000000000000  000000004058d22c  =
0000000040638210
28-31  000000000800000f  000000007f0d4490  000000007f0d44c0  =
0000000000000000


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000
08-11  0000000000000000  0000000000000000  00000000000000c0  =
0000000000000000
12-15  0000000000000000  0000000000000000  0000000000103000  =
c000000000000000
16-19  000001e32c71c5f0  0000000000000000  0000000040119ca4  =
00000000e840d002
20-23  0000000000000000  0000000000000000  000000ff082cfb0e  =
8000000000000000
24-27  0000000000595000  0000000000595000  ffffffffffffffff  =
ffffffffffffffff
28-31  ffffffffffffffff  ffffffffffffffff  000000007f0d4000  =
9001013408940001

Space Registers 0 - 7
00-03  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000

IIA Space (back entry)       =3D 0x0000000000000000
IIA Offset (back entry)      =3D 0x0000000040119c88
CPU State                    =3D 0x9e000000

0000000040119c78 <_raw_spin_lock_irqsave>:
    40119c78:   00 01 0e 7c     rsm 1,ret0
    40119c7c:   d3 93 1b ff     extrw,u ret0,31,1,r19    40119c80:   0f =
40 15 df     ldcw,co 0(r26),r31
=3D>  40119c84:   8f e0 20 32     cmpib,<>,n 0,r31,40119ca4 =
<_raw_spin_lock_irqsav
e+0x2c>
    40119c88:   0f 40 10 9f     ldw 0(r26),r31
    40119c8c:   bf e0 3f dd     cmpb,*<> r0,r31,40119c80 =
<_raw_spin_lock_irqsave
+0x8>
    40119c90:   08 00 02 40     nop
    40119c94:   86 60 20 1a     cmpib,=3D,n 0,r19,40119ca8 =
<_raw_spin_lock_irqsave
+0x30>
    40119c98:   00 01 0d 60     ssm 1,r0
    40119c9c:   00 01 0e 60     rsm 1,r0
    40119ca0:   e8 1f 1f c7     b,l,n 40119c88 =
<_raw_spin_lock_irqsave+0x10>,r0    40119ca4:   e8 40 d0 02     bve,n =
(rp)
    40119ca8:   e8 1f 1f b7     b,l,n 40119c88 =
<_raw_spin_lock_irqsave+0x10>,r0
    40119cac:   00 00 00 00     break 0,0


0000000040119ac8 <__down_write_nested>:
    40119ac8:   0f c2 12 c1     std rp,-10(sp)
    40119acc:   37 de 01 80     ldo c0(sp),sp    40119ad0:   37 dd 3f a1 =
    ldo -30(sp),ret1
    40119ad4:   73 c6 3e d1     std r6,-98(sp)
    40119ad8:   37 46 00 08     ldo 4(r26),r6
    40119adc:   73 c5 3e e1     std r5,-90(sp)
    40119ae0:   08 1a 02 45     copy r26,r5
    40119ae4:   08 06 02 5a     copy r6,r26
    40119ae8:   73 c4 3e f1     std r4,-88(sp)
    40119aec:   08 1b 02 44     copy dp,r4
    40119af0:   e8 00 a3 00     b,l 40119c78 <_raw_spin_lock_irqsave>,rp
    40119af4:   73 c3 3f 01     std r3,-80(sp)
=3D>  40119af8:   08 04 02 5b     copy r4,dp


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From - Thu Nov 08 21:07:31 2018
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From: Thibaut VARENE <T-Bone@parisc-linux.org>
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Subject: Re: [PATCH] wire up sysmmsg syscall
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Hi James,

On Fri, Jul 29, 2011 at 4:37 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
>
> ---
>
> diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/a=
sm/unistd.h
> index 3392de3..276df1c 100644
> --- a/arch/parisc/include/asm/unistd.h
> +++ b/arch/parisc/include/asm/unistd.h
> @@ -821,8 +821,10 @@
> =C2=A0#define __NR_open_by_handle_at (__NR_Linux + 326)
> =C2=A0#define __NR_syncfs =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0(_=
_NR_Linux + 327)
> =C2=A0#define __NR_setns =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (_=
_NR_Linux + 328)
> +#define __NR_setns =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (__NR_L=
inux + 328)

^ I may be wrong but this looks like a spurious "+", just reading this =
patch...

HTH

T-Bone

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http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:07:31 2018
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Subject: [PATCH, PA-RISC] Fix SMP cache related HPMCs running libgomp testsuite
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After a considerable amount of testing, I have found that the HPMCs  
that I have been seeing
in the GCC libgomp testsuite are caused by the implementation of  
flush_user_dcache_range.
The current implementation doesn't flush all aliases (e.g., kernel)  
and this leads to cache corruption.
As with flush_cache_mm, we need to either whack the entire cache, or  
do something similar to that
in flush_dcache_page.

The for-[1-8].C tests are the principle problem.  They turn "for  
loops" into a large number of
parallel threads.

I was hoping someone else would have solved this problem, but arm, for  
example, appears to
flush the entire cache on vipt architectures.

The problem with the attached patch is that flushing the entire data  
cache on the rp3440 is
incredibly slow (0x40000 iterations).  I have a patch to unroll the  
loops in flush_instruction_cache_local
and flush_data_cache_local, but still they are still slow.

We are probably missing opportunities to skip flushing the instruction  
cache, but still the data
cache flush will be slow.

What I think needs to be done is to determine the ptep pointer for the  
starting and ending addresses
when the context is current.  From this, we can get the page pointer.   
Then, we may be able to
call flush_dcache_page.  Currently, the only page table lookup that I  
see is in entry.S.

Maybe there is a simpler method?  For example, is there a way to force  
the kernel to use
flush_cache_page.

I'm not sure the change is needed on machines that support non  
equivalent aliases.

Dave



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diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 83335f3..532e3bf 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -472,10 +472,14 @@ void flush_cache_mm(struct mm_struct *mm)
 void
 flush_user_dcache_range(unsigned long start, unsigned long end)
 {
+#ifdef CONFIG_SMP
+	flush_data_cache();
+#else
 	if ((end - start) < parisc_cache_flush_threshold)
 		flush_user_dcache_range_asm(start,end);
 	else
 		flush_data_cache();
+#endif
 }
 
 void

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On 31-Jul-11, at 5:46 PM, Thibaut VARENE wrote:

> Hi James,
>
> On Fri, Jul 29, 2011 at 4:37 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
>> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
>>
>> ---
>>
>> diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/ 
>> asm/unistd.h
>> index 3392de3..276df1c 100644
>> --- a/arch/parisc/include/asm/unistd.h
>> +++ b/arch/parisc/include/asm/unistd.h
>> @@ -821,8 +821,10 @@
>>  #define __NR_open_by_handle_at (__NR_Linux + 326)
>>  #define __NR_syncfs            (__NR_Linux + 327)
>>  #define __NR_setns             (__NR_Linux + 328)
>> +#define __NR_setns             (__NR_Linux + 328)
>
> ^ I may be wrong but this looks like a spurious "+", just reading  
> this patch...

Yes.  Also, there is a typo in the mail Subject...

Dave
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From - Thu Nov 08 21:07:31 2018
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To: Sven Eckelmann <sven@narfation.org>
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On Wed, Jul 27, 2011 at 11:47:40AM +0200, Sven Eckelmann wrote:

For MIPS:

Acked-by: Ralf Baechle <ralf@linux-mips.org>

  Ralf

From - Thu Nov 08 21:07:32 2018
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From: Jeroen Roovers <jer@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: RFC: lsparisc without libsysfs
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To: linux-parisc <linux-parisc@vger.kernel.org>
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     Hello there,


lsparisc currently uses libsysfs to find PARISC specific devices in
the sysfs tree.

The Gentoo Linux Project wants to drop sysfsutils[1], including
libsysfs, since it was last updated in 2006 and is purportedly broken
(even though lsparisc still works fine).

Similar utilities, like lsscsi[2] and cpufrequtils[3], stopped using
libsysfs a long time ago and search the sysfs tree in other ways.


Regards,
     jer


[1] https://bugs.gentoo.org/show_bug.cgi?id=377695
[2] http://sg.danny.cz/scsi/lsscsi.html
[3] http://www.kernel.org/pub/linux/utils/kernel/cpufreq/cpufrequtils.html
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From - Thu Nov 08 21:07:32 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: [GIT PULL] parisc fixes for 3.0
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This is basically three bug fixes that turned up recently (one wire up
of a syscall, a futex fix and an atomic problem with variable size)

The patches are here:

master.kernel.org:/pub/scm/linux/kernel/git/jejb/parisc-2.6.git#fixes

The short changelog is:

Carlos O'Donell (1):
      [PARISC] Fix futex support

James Bottomley (1):
      [PARISC] wire up sendmmsg syscall

John David Anglin (1):
      [PARISC] fix return type of __atomic64_add_return

The diffstat is:

 arch/parisc/include/asm/atomic.h   |    4 +-
 arch/parisc/include/asm/futex.h    |   66 ++++++++++++++++++++++++++++++++---
 arch/parisc/include/asm/unistd.h   |    3 +-
 arch/parisc/kernel/syscall_table.S |    1 +
 4 files changed, 65 insertions(+), 9 deletions(-)

And the full diff is attached below.

James

---

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index f819559..26fd114 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -259,10 +259,10 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 
 #define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
 
-static __inline__ int
+static __inline__ s64
 __atomic64_add_return(s64 i, atomic64_t *v)
 {
-	int ret;
+	s64 ret;
 	unsigned long flags;
 	_atomic_spin_lock_irqsave(v, flags);
 
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 67a33cc..2388bdb 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -5,11 +5,14 @@
 
 #include <linux/futex.h>
 #include <linux/uaccess.h>
+#include <asm/atomic.h>
 #include <asm/errno.h>
 
 static inline int
 futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 {
+	unsigned long int flags;
+	u32 val;
 	int op = (encoded_op >> 28) & 7;
 	int cmp = (encoded_op >> 24) & 15;
 	int oparg = (encoded_op << 8) >> 20;
@@ -18,21 +21,58 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
 		oparg = 1 << oparg;
 
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
+	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(*uaddr)))
 		return -EFAULT;
 
 	pagefault_disable();
 
+	_atomic_spin_lock_irqsave(uaddr, flags);
+
 	switch (op) {
 	case FUTEX_OP_SET:
+		/* *(int *)UADDR2 = OPARG; */
+		ret = get_user(oldval, uaddr);
+		if (!ret)
+			ret = put_user(oparg, uaddr);
+		break;
 	case FUTEX_OP_ADD:
+		/* *(int *)UADDR2 += OPARG; */
+		ret = get_user(oldval, uaddr);
+		if (!ret) {
+			val = oldval + oparg;
+			ret = put_user(val, uaddr);
+		}
+		break;
 	case FUTEX_OP_OR:
+		/* *(int *)UADDR2 |= OPARG; */
+		ret = get_user(oldval, uaddr);
+		if (!ret) {
+			val = oldval | oparg;
+			ret = put_user(val, uaddr);
+		}
+		break;
 	case FUTEX_OP_ANDN:
+		/* *(int *)UADDR2 &= ~OPARG; */
+		ret = get_user(oldval, uaddr);
+		if (!ret) {
+			val = oldval & ~oparg;
+			ret = put_user(val, uaddr);
+		}
+		break;
 	case FUTEX_OP_XOR:
+		/* *(int *)UADDR2 ^= OPARG; */
+		ret = get_user(oldval, uaddr);
+		if (!ret) {
+			val = oldval ^ oparg;
+			ret = put_user(val, uaddr);
+		}
+		break;
 	default:
 		ret = -ENOSYS;
 	}
 
+	_atomic_spin_unlock_irqrestore(uaddr, flags);
+
 	pagefault_enable();
 
 	if (!ret) {
@@ -54,7 +94,9 @@ static inline int
 futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 			      u32 oldval, u32 newval)
 {
+	int ret;
 	u32 val;
+	unsigned long flags;
 
 	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
 	 * our gateway page, and causes no end of trouble...
@@ -65,12 +107,24 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
 		return -EFAULT;
 
-	if (get_user(val, uaddr))
-		return -EFAULT;
-	if (val == oldval && put_user(newval, uaddr))
-		return -EFAULT;
+	/* HPPA has no cmpxchg in hardware and therefore the
+	 * best we can do here is use an array of locks. The
+	 * lock selected is based on a hash of the userspace
+	 * address. This should scale to a couple of CPUs.
+	 */
+
+	_atomic_spin_lock_irqsave(uaddr, flags);
+
+	ret = get_user(val, uaddr);
+
+	if (!ret && val == oldval)
+		ret = put_user(newval, uaddr);
+
 	*uval = val;
-	return 0;
+
+	_atomic_spin_unlock_irqrestore(uaddr, flags);
+
+	return ret;
 }
 
 #endif /*__KERNEL__*/
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 3392de3..d61de64 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -821,8 +821,9 @@
 #define __NR_open_by_handle_at	(__NR_Linux + 326)
 #define __NR_syncfs		(__NR_Linux + 327)
 #define __NR_setns		(__NR_Linux + 328)
+#define __NR_sendmmsg		(__NR_Linux + 329)
 
-#define __NR_Linux_syscalls	(__NR_setns + 1)
+#define __NR_Linux_syscalls	(__NR_sendmmsg + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 34a4f5a..e66366f 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -427,6 +427,7 @@
 	ENTRY_COMP(open_by_handle_at)
 	ENTRY_SAME(syncfs)
 	ENTRY_SAME(setns)
+	ENTRY_COMP(sendmmsg)
 
 	/* Nothing yet */
 


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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH 2.6.39-rc3] parsic: Fix futex support
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On 24-Jul-11, at 4:30 PM, John David Anglin wrote:

>
> On 24-Jul-11, at 2:42 PM, Carlos O'Donell wrote:
>
>> On Fri, Jul 22, 2011 at 5:51 PM, John David Anglin <dave.anglin@bell.net 
>> > wrote:
>>> Do you have a userspace patch?  There was the thread stack  
>>> allocation bug
>>> and possibly futex related issues.
>>
>> I do have a userspace patch, what would you like the patch against?
>
> The current version is unstable or 2.11.2-10.


I think we need a patch against the current unstable version (2.13-13).

I have been trying to fix the HPMCs caused by flush_cache_range.  I  
have modified it to
use flush_cache_page.  This didn't fix the HPMCs, so I added a check  
for inequivalent
aliases along the lines as that in flush_dcache_page.  Without that,  
I'm seeing warnings
like the following:

INEQUIVALENT ALIASES 0x40095000 and 0x40096000 in file pam_deny.so
INEQUIVALENT ALIASES 0x40096000 and 0x40095000 in file pam_deny.so
INEQUIVALENT ALIASES 0x40095000 and 0x40096000 in file pam_deny.so
INEQUIVALENT ALIASES 0x40096000 and 0x40095000 in file pam_deny.so
INEQUIVALENT ALIASES 0x40095000 and 0x40096000 in file pam_deny.so
INEQUIVALENT ALIASES 0x40092000 and 0x40093000 in file pam_permit.so
INEQUIVALENT ALIASES 0x40093000 and 0x40092000 in file pam_permit.so
INEQUIVALENT ALIASES 0x40092000 and 0x40093000 in file pam_permit.so
INEQUIVALENT ALIASES 0x40093000 and 0x40092000 in file pam_permit.so
INEQUIVALENT ALIASES 0x40092000 and 0x40093000 in file pam_permit.so
INEQUIVALENT ALIASES 0x40707000 and 0x40708000 in file pam_env.so
INEQUIVALENT ALIASES 0x4008b000 and 0x4008c000 in file pam_limits.so

I tried rebuilding pam from source but the only version I could find  
is 1.1.3-2.  It has
a dependency on multiarch-support.  While it builds, it won't install.
multiarch-support appears to be provided by eglibc 2.13.

I'm hoping this is the cause of the HPMCs as the messages appear  
somewhat randomly.

Another issue that I saw in debugging flush_cache_range is that it is  
sometimes
called with "64-bit" ranges.  There are no pte's and probably no page  
table for these
flushes.  Here's an example:

vm_start 0xfb0e9000, vm_end 0x7fff1001000
start 0x7fff0fff000, end 0x7fff1001000, cr25 0x3c376000
sr0 0x0, sr1 0x0, sr2 0x0, sr3 0x800
sr4 0x0, sr5 0x0, sr6 0x0, sr7 0x0

The first call and some occasional subsequent calls have this wierd  
range.

I am currently building 2.13 and will see what needs fixing.

Dave

--
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Subject: Re: [PATCH 2.6.39-rc3] parsic: Fix futex support
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On 5-Aug-11, at 5:44 PM, John David Anglin wrote:

> I am currently building 2.13 and will see what needs fixing.


This is what I see:

# Testsuite failures, someone should be working towards
# fixing these! They are listed here for the purpose of
# regression testing during builds.
# Format: <Failed test>, Error <Make error code> [(ignored)]
#
annexc.out, Error 1 (ignored)
check-execstack.out, Error 1
check-localplt.out, Error 1
check-textrel.out, Error 1
test-double.out, Error 1
test-float.out, Error 1
test-idouble.out, Error 1
test-ifloat.out, Error 1
tst-addr1.out, Error 1
tst-audit2.out, Error 139
tst-backtrace2.out, Error 1
tst-cancelx20.out, Error 1
tst-cancelx21.out, Error 1
tst-cancelx4.out, Error 1
tst-cancelx5.out, Error 1
tst-cleanupx4.out, Error 1
tst-cond10.out, Error 1
tst-cond18.out, Error 1
tst-cond20.out, Error 1
tst-cond21.out, Error 1
tst-cpuclock2.out, Error 1
tst-cputimer1.out, Error 1
tst-cputimer2.out, Error 1
tst-cputimer3.out, Error 1
tst-getcpu.out, Error 1
tst-longjmp_chk.out, Error 1
tst-mqueue3.out, Error 1
tst-sprofil.out, Error 137
tst-timer4.out, Error 1
tst-timer5.out, Error 1
tst-tls11.out, Error 139
tst-tls3.out, Error 1
***************
Encountered regressions that don't match expected failures:
test-double.out, Error 1
test-float.out, Error 1
test-idouble.out, Error 1
test-ifloat.out, Error 1
tst-cond10.out, Error 1
tst-cond18.out, Error 1
tst-cond20.out, Error 1
tst-cond21.out, Error 1
tst-sprofil.out, Error 137
tst-tls11.out, Error 139
tst-tls3.out, Error 1
make: *** [/home/dave/debian/multiarch-support/eglibc-2.13/stamp-dir/ 
check_libc] Error 1
dpkg-buildpackage: error: debian/rules build gave error exit status 2

Dave
--
John David Anglin	dave.anglin@bell.net



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Subject: Re: [PATCH 2.6.39-rc3] parsic: Fix futex support
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On 6-Aug-11, at 11:33 AM, John David Anglin wrote:

> On 5-Aug-11, at 5:44 PM, John David Anglin wrote:
>
>> I am currently building 2.13 and will see what needs fixing.


For better or worse, I hacked the glibc fail list and installed  
2.13-13 with multiarch support.
This was a bit hairy because I didn't realize some of the  
dependencies.  I should have read
the debian transition wiki...

In any case, I have installed and rebuilt a bunch of stuff including  
pam.   I have my fingers
crossed that the main cache bug is fixed on my rp3440.

There are still issues and a lot of stuff to do to complete the  
transition.

nscd is still broken:
http://www.spinics.net/lists/linux-parisc/msg02195.html
I probably shouldn't have installed it.  Problem is fixed by disabling  
passwd and group caching
in conf file.  This is probably a glibc timer issue as problem goes  
away when commands are
repeated.

Multiarch support is a pain in the neck.  The debian patches to  
binutils and GCC haven't been
sent upstream, so normal GCC testing is broken (includes and libraries  
are now in target
specific directories).  I think the same is also true for glibc.   
Other packages also need to be
aware of the change.  Probably, the library universe needs completely  
rebuilding.

Currently, I'm stuck trying to build the attr package.  There seems to  
be a glibc issue with
main which causes the build to fail.  However, it might be a libtool  
issue (it probably needs
to be multiarch aware).

So, this is where we have to go to support PA-RISC debian linux.

Dave
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John David Anglin	dave.anglin@bell.net



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The last kernel I used on this machine was 2.6.38.4. Any hints appreciated.

Greetings,

Eike

Command line for kernel: 'root=3D/dev/sda3 console=3DttyS0=20
palo_kernel=3D2/kernel-3.0.3'                                              =
                                          =20
Selected kernel: /kernel-3.0.3 from partition 2                            =
                                                                           =
                    =20
ELF32 executable                                                           =
                                                                           =
                    =20
Entry 00100100 first 00100000 n 3                                          =
                                                                           =
                    =20
Segment 0 load 00100000 size 4820992 mediaptr 0x1000                       =
                                                                           =
                    =20
Segment 1 load 005c8000 size 116752 mediaptr 0x49a000                      =
                                                                           =
                    =20
Segment 2 load 005e5000 size 27888 mediaptr 0x4b7000                       =
                                                                           =
                    =20
Branching to kernel entry point 0x00100100.  If this is the last           =
                                                                           =
                    =20
message you see, you may need to switch your console.  This is             =
                                                                           =
                    =20
a common symptom -- search the FAQ and mailing list at parisc-linux.org    =
                                                                           =
                    =20
                                                                           =
                                                                           =
                    =20
Linux version 3.0.3 (root@voyager) (gcc version 4.5.3 (Gentoo 4.5.3-r1 p1.0=
,=20
pie-0.4.5) ) #1 Fri Aug 19 14:48:59 CEST 2011                              =
                  =20
unwind_init: start =3D 0x10503000, end =3D 0x1053a640, entries =3D 14180   =
                                                                           =
                          =20
WARNING: Out of order unwind entry! 105041f0 and 10504200                  =
                                                                           =
                    =20
WARNING: Out of order unwind entry! 10504200 and 10504210                  =
                                                                           =
                    =20
WARNING: Out of order unwind entry! 10504cf0 and 10504d00                  =
                                                                           =
                    =20
WARNING: Out of order unwind entry! 10504d00 and 10504d10                  =
                                                                           =
                    =20
=46P[0] enabled: Rev 1 Model 16                                            =
                                                                           =
                      =20
The 32-bit Kernel has started...                                           =
                                                                           =
                    =20
bootconsole [ttyB0] enabled                                                =
                                                                           =
                    =20
Initialized PDC Console for debugging.                                     =
                                                                           =
                    =20
Determining PDC firmware type: System Map.                                 =
                                                                           =
                    =20
model 00005cf0 00000481 00000000 00000002 77486b80 100000f0 00000008 000000=
b2=20
000000b2                                                                   =
                 =20
vers  00000301                                                             =
                                                                           =
                    =20
CPUID vers 17 rev 11 (0x0000022b)                                          =
                                                                           =
                    =20
capabilities 0x3                                                           =
                                                                           =
                    =20
model 9000/785/C3600                                                       =
                                                                           =
                    =20
Total Memory: 512 MB                                                       =
                                                                           =
                    =20
      _______________________________                                      =
                                                                           =
                    =20
     < Your System ate a SPARC! Gah! >                                     =
                                                                           =
                    =20
      -------------------------------                                      =
                                                                           =
                    =20
             \   ^__^                                                      =
                                                                           =
                    =20
                 (__)\       )\/\                                          =
                                                                           =
                    =20
                  U  ||----w |                                             =
                                                                           =
                    =20
                     ||     ||                                             =
                                                                           =
                    =20
swapper (pid 0): Protection id trap (code 7)                               =
                                                                           =
                    =20
                                                                           =
                                                                           =
                    =20
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                      =
                                                                           =
                    =20
PSW: 00000000000001000000000000001110 Not tainted                          =
                                                                           =
                    =20
r00-03  0004000e 0004000e 105caed8 00000000                                =
                                                                           =
                    =20
r04-07  10544014 10544000 105401cc 1054daf4                                =
                                                                           =
                    =20
r08-11  1054db10 10544020 10576800 000005ec                                =
                                                                           =
                    =20
r12-15  00100000 00020000 10544000 10576af8                                =
                                                                           =
                    =20
r16-19  00020000 105b7000 005ebfff 0000000e                                =
                                                                           =
                    =20
r20-23  00000000 00000000 00000000 00000000                                =
                                                                           =
                    =20
r24-27  00000001 00000000 00000000 10544000                                =
                                                                           =
                    =20
r28-31  00000000 00000000 10540280 00000000                                =
                                                                           =
                    =20
sr00-03  00000000 00000000 00000000 00000000                               =
                                                                           =
                    =20
sr04-07  00000000 00000000 00000000 00000000                               =
                                                                           =
                    =20
                                                                           =
                                                                           =
                    =20
IASQ: 00000000 00000000 IAOQ: 1010047c 10100480                            =
                                                                           =
                    =20
 IIR: 43ffff40    ISR: 00000000  IOR: 00000000                             =
                                                                           =
                    =20
 CPU:        0   CR30: 10540000 CR31: ffffffff                             =
                                                                           =
                    =20
 ORIG_R28: 00000000                                                        =
                                                                           =
                    =20
 IAOQ[0]: .L21+0x0/0x8                                                     =
                                                                           =
                    =20
 IAOQ[1]: .L21+0x4/0x8                                                     =
                                                                           =
                    =20
 RP(r2): paging_init+0x7ac/0x848                                           =
                                                                           =
                    =20
Backtrace:                                                                 =
                                                                           =
                    =20
 [<105caed8>] paging_init+0x7ac/0x848                                      =
                                                                           =
                    =20
 [<105cb474>] setup_arch+0x5c/0x80                                         =
                                                                           =
                    =20
 [<105c86ac>] start_kernel+0x80/0x374                                      =
                                                                           =
                    =20
 [<1011497c>] start_parisc+0x4c/0x68                                       =
                                                                           =
                    =20
                                                                           =
                                                                           =
                    =20
Backtrace:                                                                 =
                                                                           =
                    =20
 [<10115050>] die_if_kernel+0xac/0x1bc                                     =
                                                                           =
                    =20
 [<1011587c>] handle_interruption+0x47c/0x718                              =
                                                                           =
                    =20
 [<10104078>] intr_check_sig+0x0/0x34                                      =
                                                                           =
                    =20
 [<10100480>] .L21+0x4/0x8                                                 =
                                                                           =
                    =20
                                                                           =
                                                                           =
                    =20
=2D--[ end trace 139ce121c98e96c9 ]---                                     =
                                                                           =
                      =20
Kernel panic - not syncing: Attempted to kill the idle task!               =
                                                                           =
                    =20
Backtrace:                                                                 =
                                                                           =
                    =20
 [<1010fdec>] panic+0x90/0x23c                                             =
                                                                           =
                    =20
 [<10135b28>] do_exit+0x5cc/0x640                                          =
                                                                           =
                    =20
 [<1011508c>] die_if_kernel+0xe8/0x1bc                                     =
                                                                           =
                    =20
 [<1011587c>] handle_interruption+0x47c/0x718                              =
                                                                           =
                    =20
 [<10104078>] intr_check_sig+0x0/0x34                                      =
                                                                           =
                    =20
 [<10100480>] .L21+0x4/0x8                                                 =
                                                                           =
                    =20
                                                                           =
                                                                           =
                    =20
      _______________________________                                      =
                                                                           =
                    =20
     < Your System ate a SPARC! Gah! >                                     =
                                                                           =
                    =20
      -------------------------------                                      =
                                                                           =
                    =20
             \   ^__^                                                      =
                                                                           =
                    =20
                 (__)\       )\/\                                          =
                                                                           =
                    =20
                  U  ||----w |                                             =
                                                                           =
                    =20
                     ||     ||                                             =
                                                                           =
                    =20
swapper (pid 0): Protection id trap (code 7)                               =
                                                                           =
                    =20
die_if_kernel() recursion detected.

--nextPart5216822.ezjL2bRbq4
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From - Thu Nov 08 21:07:32 2018
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From: Rolf Eike Beer <eike@sf-mail.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] hppa: fix whitespace errors in arch/parisc/kernel/traps.c
Date: Fri, 19 Aug 2011 20:10:53 +0200
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Things like " \t" and whitespace at end of line. I'm leaving all the other
coding style errors here alone.

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 arch/parisc/kernel/traps.c |   24 ++++++++++++------------
 1 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index f19e660..2a1ba2b 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -529,10 +529,10 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 	 */
 	if (((unsigned long)regs->iaoq[0] & 3) &&
 	    ((unsigned long)regs->iasq[0] != (unsigned long)regs->sr[7])) { 
-	  	/* Kill the user process later */
-	  	regs->iaoq[0] = 0 | 3;
+		/* Kill the user process later */
+		regs->iaoq[0] = 0 | 3;
 		regs->iaoq[1] = regs->iaoq[0] + 4;
-	 	regs->iasq[0] = regs->iasq[1] = regs->sr[7];
+		regs->iasq[0] = regs->iasq[1] = regs->sr[7];
 		regs->gr[0] &= ~PSW_B;
 		return;
 	}
@@ -548,8 +548,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 		
 		/* set up a new led state on systems shipped with a LED State panel */
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_HPMC);
-		    
-	    	parisc_terminate("High Priority Machine Check (HPMC)",
+
+		parisc_terminate("High Priority Machine Check (HPMC)",
 				regs, code, 0);
 		/* NOT REACHED */
 		
@@ -591,13 +591,13 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 		/* Break instruction trap */
 		handle_break(regs);
 		return;
-	
+
 	case 10:
 		/* Privileged operation trap */
 		die_if_kernel("Privileged operation", regs, code);
 		si.si_code = ILL_PRVOPC;
 		goto give_sigill;
-	
+
 	case 11:
 		/* Privileged register trap */
 		if ((regs->iir & 0xffdfffe0) == 0x034008a0) {
@@ -641,7 +641,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 		if(user_mode(regs)){
 			si.si_signo = SIGFPE;
 			/* Set to zero, and let the userspace app figure it out from
-		   	   the insn pointed to by si_addr */
+			   the insn pointed to by si_addr */
 			si.si_code = 0;
 			si.si_addr = (void __user *) regs->iaoq[0];
 			force_sig_info(SIGFPE, &si, current);
@@ -655,7 +655,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 		die_if_kernel("Floating point exception", regs, 0); /* quiet */
 		handle_fpe(regs);
 		return;
-		
+
 	case 15:
 		/* Data TLB miss fault/Data page fault */
 		/* Fall through */
@@ -667,15 +667,15 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 	case 17:
 		/* Non-access data TLB miss fault/Non-access data page fault */
 		/* FIXME: 
-		 	 Still need to add slow path emulation code here!
-		         If the insn used a non-shadow register, then the tlb
+			 Still need to add slow path emulation code here!
+			 If the insn used a non-shadow register, then the tlb
 			 handlers could not have their side-effect (e.g. probe
 			 writing to a target register) emulated since rfir would
 			 erase the changes to said register. Instead we have to
 			 setup everything, call this function we are in, and emulate
 			 by hand. Technically we need to emulate:
 			 fdc,fdce,pdc,"fic,4f",prober,probeir,probew, probeiw
-		*/			  
+		*/
 		fault_address = regs->ior;
 		fault_space = regs->isr;
 		break;
-- 
1.7.6

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From - Thu Nov 08 21:07:32 2018
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From: "Rolf Eike Beer" <eike@sf-mail.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Link error in CMake for HPPA1.1, wrong result for HPPA 2.0
Date: Thu, 25 Aug 2011 12:37:31 +0200
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First something to the machine: C3600 running Gentoo.

Kernel: 2.6.38.4
Glibc: 2.12.2
Binutils: 2.21.1
Gcc: 4.5.3

I tried to compile CMake, branch next, revision
60b6b190cb569a18b6cf415d85ff59fa120a1035. The exact version isn't really
important as I remember that problem for quite a while, it's just for
reference.

I have a working version of CMake 2.8.4 installed, no idea with which
compiler that was built (I updated gcc every now and then as they became
stable on Gentoo). Binutils used to build that CMake was very likely
2.20.1.

If I just use "cmake /path/to/cmake/source/ && make" I get this result:

Linking CXX executable ../bin/ccmake
/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.5.3/../../../../hppa2.0-unknown-linux-gnu/bin/ld:
libCMakeLib.a(cmGlobalGenerator.cxx.o)(.text._ZNSt8_Rb_treeIN5cmsys6StringESt4pairIKS1_iESt10_Select1stIS4_ESt4lessIS1_ESaIS4_EE16_M_insert_uniqueERKS4_[std::_Rb_tree<cmsys::String,
std::pair<cmsys::String const, int>,
std::_Select1st<std::pair<cmsys::String const, int> >,
std::less<cmsys::String>, std::allocator<std::pair<cmsys::String const,
int> > >::_M_insert_unique(std::pair<cmsys::String const, int>
const&)]+0xbc): cannot reach
00004abb__ZNSt8_Rb_treeIN5cmsys6StringESt4pairIKS1_iESt10_Select1stIS4_ESt4lessIS1_ESaIS4_EE8_S_rightEPSt18_Rb_tree_node_base+0,
recompile with -ffunction-sections
/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.5.3/../../../../hppa2.0-unknown-linux-gnu/bin/ld:
libCMakeLib.a(cmGlobalGenerator.cxx.o)(.text._ZNSt8_Rb_treeIN5cmsys6StringESt4pairIKS1_iESt10_Select1stIS4_ESt4lessIS1_ESaIS4_EE16_M_insert_uniqueERKS4_[std::_Rb_tree<cmsys::String,
std::pair<cmsys::String const, int>,
std::_Select1st<std::pair<cmsys::String const, int> >,
std::less<cmsys::String>, std::allocator<std::pair<cmsys::String const,
int> > >::_M_insert_unique(std::pair<cmsys::String const, int>
const&)]+0xbc): cannot handle R_PARISC_PCREL17F for
std::_Rb_tree<cmsys::String, std::pair<cmsys::String const, int>,
std::_Select1st<std::pair<cmsys::String const, int> >,
std::less<cmsys::String>, std::allocator<std::pair<cmsys::String const,
int> > >::_S_right(std::_Rb_tree_node_base*)
/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.5.3/../../../../hppa2.0-unknown-linux-gnu/bin/ld:
final link failed: Bad value
collect2: ld returned 1 exit status

If I hack the master CMakeLists.txt to contain
"ADD_DEFINITIONS(-march=2.0)" at the very beginning everything compiles
fine. But if I run the compiled cmake it will hang in an endless loop
somewhere. It does not do any system calls then, but it eats up 100% CPU.

I very much doubt that this is a CMake breakage as CMake has many nightly
builds and tests on different platforms that work and I see this bug since
a while (likely months).

Can someone have a look or give some hints?

Eike
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From - Thu Nov 08 21:07:32 2018
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From: Carlos O'Donell <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Link error in CMake for HPPA1.1, wrong result for HPPA 2.0
Date: Thu, 25 Aug 2011 10:06:28 -0400
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On 8/25/2011 6:37 AM, Rolf Eike Beer wrote:
> const&)]+0xbc): cannot reach
> 00004abb__ZNSt8_Rb_treeIN5cmsys6StringESt4pairIKS1_iESt10_Select1stIS4_ESt4lessIS1_ESaIS4_EE8_S_rightEPSt18_Rb_tree_node_base+0,
> recompile with -ffunction-sections

So did you recompile with -ffunction-sections?

The basic problem is that the linker was unable to insert a jump
to the requested function because it was too far away. Some targets
like hppa have short branch distances and we use intermediate stub
tables to get around that. However, we can't insert stub tables just
anywhere, they need to go between sections. Therefore you need to
break up this object file.

Cheers,
Carlos.
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From - Thu Nov 08 21:07:32 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Link error in CMake for HPPA1.1, wrong result for HPPA 2.0
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> On 8/25/2011 6:37 AM, Rolf Eike Beer wrote:
>> const&)]+0xbc): cannot reach
>> 00004abb__ZNSt8_Rb_treeIN5cmsys6StringESt4pairIKS1_iESt10_Select1stIS4_ESt4lessIS1_ESaIS4_EE8_S_rightEPSt18_Rb_tree_node_base+0,
>> recompile with -ffunction-sections
>
> So did you recompile with -ffunction-sections?
>
> The basic problem is that the linker was unable to insert a jump
> to the requested function because it was too far away. Some targets
> like hppa have short branch distances and we use intermediate stub
> tables to get around that. However, we can't insert stub tables just
> anywhere, they need to go between sections. Therefore you need to
> break up this object file.

So this is just that the object file sometime grew too big to fit into the
small jump stuff?

I'll try tomorrow and see if it works.

Eike
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From - Thu Nov 08 21:07:32 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Link error in CMake for HPPA1.1, wrong result for HPPA 2.0
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This is a multi-part message in MIME format.
--------------050306030302020505060503
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

On 8/25/2011 10:06 AM, Carlos O'Donell wrote:
> On 8/25/2011 6:37 AM, Rolf Eike Beer wrote:
>> const&)]+0xbc): cannot reach
>> 00004abb__ZNSt8_Rb_treeIN5cmsys6StringESt4pairIKS1_iESt10_Select1stIS4_ESt4lessIS1_ESaIS4_EE8_S_rightEPSt18_Rb_tree_node_base+0,
>> recompile with -ffunction-sections
> So did you recompile with -ffunction-sections?
>
> The basic problem is that the linker was unable to insert a jump
> to the requested function because it was too far away. Some targets
> like hppa have short branch distances and we use intermediate stub
> tables to get around that. However, we can't insert stub tables just
> anywhere, they need to go between sections. Therefore you need to
> break up this object file.
I think there is a real bug here but nobody has provided a test case.  
-ffunction-sections
probably won't help.

Stub sizes vary depending on whether PIC code or non PIC code is being 
generated.
We need a bigger stub table for PIC C++ code as C++ tends to generate a 
lot of small
routines.

I've attached the GCC part of the change.  There's also a binutils patch 
which I can't
access at the moment.

Dave

-- 
John David Anglin    dave.anglin@bell.net


--------------050306030302020505060503
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Index: config/pa/pa.c
===================================================================
--- config/pa/pa.c	(revision 178012)
+++ config/pa/pa.c	(working copy)
@@ -7385,7 +7385,7 @@
     return 24;
   else
     {
-      if (!TARGET_LONG_CALLS && distance < 240000)
+      if (!TARGET_LONG_CALLS && distance < MAX_PCREL17F_OFFSET)
 	return 8;
 
       if (TARGET_LONG_ABS_CALL && !flag_pic)
@@ -7598,7 +7598,7 @@
   /* pc-relative branch.  */
   if (!TARGET_LONG_CALLS
       && ((TARGET_PA_20 && !sibcall && distance < 7600000)
-	  || distance < 240000))
+	  || distance < MAX_PCREL17F_OFFSET))
     length += 8;
 
   /* 64-bit plabel sequence.  */
@@ -7957,7 +7957,7 @@
   if (TARGET_FAST_INDIRECT_CALLS
       || (!TARGET_PORTABLE_RUNTIME
 	  && ((TARGET_PA_20 && !TARGET_SOM && distance < 7600000)
-	      || distance < 240000)))
+	      || distance < MAX_PCREL17F_OFFSET)))
     return 8;
 
   if (flag_pic)
Index: config/pa/pa.h
===================================================================
--- config/pa/pa.h	(revision 178012)
+++ config/pa/pa.h	(working copy)
@@ -1512,3 +1512,12 @@
 #undef TARGET_HAVE_TLS
 #define TARGET_HAVE_TLS true
 #endif
+
+/* The maximum offset in bytes for a PA 1.X pc-relative call to the
+   tail of the preceding stub table.  The selected offsets have been
+   chosen to allow approximately one call stub for every 86 instructions.
+   A long branch stub is two instructions when not generating PIC code.
+   More space is allowed for stubs when generating PIC code since HP-UX
+   and Linux import stubs are seven and four instructions, respectively.  */  
+#define MAX_PCREL17F_OFFSET \
+  (flag_pic ? (TARGET_HPUX ? 198164 : 221312) : 240000)

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From - Thu Nov 08 21:07:32 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Link error in CMake for HPPA1.1, wrong result for HPPA 2.0
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> On 8/25/2011 6:37 AM, Rolf Eike Beer wrote:
>> const&)]+0xbc): cannot reach
>> 00004abb__ZNSt8_Rb_treeIN5cmsys6StringESt4pairIKS1_iESt10_Select1stIS4_ESt4lessIS1_ESaIS4_EE8_S_rightEPSt18_Rb_tree_node_base+0,
>> recompile with -ffunction-sections
>
> So did you recompile with -ffunction-sections?
>
> The basic problem is that the linker was unable to insert a jump
> to the requested function because it was too far away. Some targets
> like hppa have short branch distances and we use intermediate stub
> tables to get around that. However, we can't insert stub tables just
> anywhere, they need to go between sections. Therefore you need to
> break up this object file.

If I add -ffunction-section then ccmake (and cmake and cpack) build fine,
but ctest fails:

Linking CXX executable ../bin/ctest
/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.5.3/../../../../hppa2.0-unknown-linux-gnu/bin/ld:
libCMakeLib.a(cmMakefile.cxx.o)(.text._ZN10cmMakefile14AddSourceGroupEPKcS1_+0x40):
cannot reach 00008647__ZNSaIcEC1Ev@@GLIBCXX_3.4+0, recompile with
-ffunction-sections
/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.5.3/../../../../hppa2.0-unknown-linux-gnu/bin/ld:
libCMakeLib.a(cmMakefile.cxx.o)(.text._ZN10cmMakefile14AddSourceGroupEPKcS1_+0x40):
cannot handle R_PARISC_PCREL17F for
std::allocator<char>::allocator()@@GLIBCXX_3.4
/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.5.3/../../../../hppa2.0-unknown-linux-gnu/bin/ld:
final link failed: Bad value
collect2: ld returned 1 exit status

This is the same static library that causes problems, but this time on a
different executable. So I think John is right and there is really a bug
somewhere.

Just for reference, this are the sizes of the binaries that I currently
have on my system:

-rwxr-xr-x 1 root root 3080228 Apr 26 12:51 /usr/bin/ccmake
-rwxr-xr-x 1 root root 3050408 Apr 26 12:51 /usr/bin/cmake
-rwxr-xr-x 1 root root 4092940 Apr 26 12:51 /usr/bin/ctest

And this is what happens with -ffunction-sections for those that compile:

-rwxr-xr-x 1 buildbot buildbot  9738726 Aug 26 09:15 ccmake
-rwxr-xr-x 1 buildbot buildbot  9608066 Aug 26 09:16 cmake
-rwxr-xr-x 1 buildbot buildbot 10302152 Aug 26 09:16 cpack

I have no idea how big the current results would get as every of the 4
possible candidates fails to link. libCMakeLib.a is 21149998 bytes.

Eike
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From - Thu Nov 08 21:07:32 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.next,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc
Subject: linux-next: build failure in Linus' tree
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Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
	NeilBrown <neilb@suse.de>, linuxppc-dev@lists.ozlabs.org,
	linux-parisc@vger.kernel.org,
	"J. Bruce Fields" <bfields@redhat.com>
To: Linus <torvalds@linux-foundation.org>
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Hi Linus,

After merging the fixes tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

arch/powerpc/kernel/built-in.o: In function `.sys_call_table':
(.text+0xbd00): undefined reference to `.sys_nfsservctl'
arch/powerpc/kernel/built-in.o: In function `.sys_call_table':
(.text+0xbd08): undefined reference to `.compat_sys_nfsservctl'

Caused by commit f5b940997397 ("All Arch: remove linkage for
sys_nfsservctl system call") which also missed parisc.

I will apply this patch for today:

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Mon, 29 Aug 2011 10:38:57 +1000
Subject: [PATCH] remove remaining references to nfsservctl

These were missed in commit f5b940997397 "All Arch: remove linkage
for sys_nfsservctl system call" due to them having no sys_ prefix
(presumably).

Cc: NeilBrown <neilb@suse.de>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/parisc/kernel/syscall_table.S |    2 +-
 arch/powerpc/include/asm/systbl.h  |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index e66366f..3735abd 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -259,7 +259,7 @@
 	ENTRY_SAME(ni_syscall)		/* query_module */
 	ENTRY_SAME(poll)
 	/* structs contain pointers and an in_addr... */
-	ENTRY_COMP(nfsservctl)
+	ENTRY_SAME(ni_syscall)		/* was nfsservctl */
 	ENTRY_SAME(setresgid)		/* 170 */
 	ENTRY_SAME(getresgid)
 	ENTRY_SAME(prctl)
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index f6736b7..fa0d27a 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -171,7 +171,7 @@ SYSCALL_SPU(setresuid)
 SYSCALL_SPU(getresuid)
 SYSCALL(ni_syscall)
 SYSCALL_SPU(poll)
-COMPAT_SYS(nfsservctl)
+SYSCALL(ni_syscall)
 SYSCALL_SPU(setresgid)
 SYSCALL_SPU(getresgid)
 COMPAT_SYS_SPU(prctl)
-- 
1.7.5.4

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

From - Thu Nov 08 21:07:32 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Link error in CMake for HPPA1.1, wrong result for HPPA 2.0
Date: Mon, 29 Aug 2011 10:12:18 +0200
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> On 8/25/2011 10:06 AM, Carlos O'Donell wrote:
>> On 8/25/2011 6:37 AM, Rolf Eike Beer wrote:
>>> const&)]+0xbc): cannot reach
>>> 00004abb__ZNSt8_Rb_treeIN5cmsys6StringESt4pairIKS1_iESt10_Select1stIS4_ESt4lessIS1_ESaIS4_EE8_S_rightEPSt18_Rb_tree_node_base+0,
>>> recompile with -ffunction-sections
>> So did you recompile with -ffunction-sections?
>>
>> The basic problem is that the linker was unable to insert a jump
>> to the requested function because it was too far away. Some targets
>> like hppa have short branch distances and we use intermediate stub
>> tables to get around that. However, we can't insert stub tables just
>> anywhere, they need to go between sections. Therefore you need to
>> break up this object file.
> I think there is a real bug here but nobody has provided a test case.
> -ffunction-sections
> probably won't help.

Confirmed, it is a regression in gcc 4.5. If I build using 4.4.6
everything works fine. I'll file a bug report tonight.

Eike
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
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Subject: Re: Link error in CMake for HPPA1.1, wrong result for HPPA 2.0
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>> On 8/25/2011 10:06 AM, Carlos O'Donell wrote:
>>> On 8/25/2011 6:37 AM, Rolf Eike Beer wrote:
>>>> const&)]+0xbc): cannot reach
>>>> 00004abb__ZNSt8_Rb_treeIN5cmsys6StringESt4pairIKS1_iESt10_Select1stIS4_ESt4lessIS1_ESaIS4_EE8_S_rightEPSt18_Rb_tree_node_base+0,
>>>> recompile with -ffunction-sections
>>> So did you recompile with -ffunction-sections?
>>>
>>> The basic problem is that the linker was unable to insert a jump
>>> to the requested function because it was too far away. Some targets
>>> like hppa have short branch distances and we use intermediate stub
>>> tables to get around that. However, we can't insert stub tables just
>>> anywhere, they need to go between sections. Therefore you need to
>>> break up this object file.
>> I think there is a real bug here but nobody has provided a test case.
>> -ffunction-sections
>> probably won't help.
>
> Confirmed, it is a regression in gcc 4.5. If I build using 4.4.6
> everything works fine. I'll file a bug report tonight.

Everything _compiles_ fine. The process later goes into an endless loop
again if I call the compiled binary with a source directory. This does not
happen with arguments like "--help" or "--version", so I overlooked that
at first.

So:
-compiling/linking with g++ 4.5 fails
-compiling/linking with g++ 4.4 works, but the result is unusable

John, do you need anything more from me? Things I can test? Which version
is your patch against?

Eike

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Subject: Re: Link error in CMake for HPPA1.1, wrong result for HPPA 2.0
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On 8/29/2011 4:12 AM, Rolf Eike Beer wrote:
>> On 8/25/2011 10:06 AM, Carlos O'Donell wrote:
>>> On 8/25/2011 6:37 AM, Rolf Eike Beer wrote:
>>>> const&)]+0xbc): cannot reach
>>>> 00004abb__ZNSt8_Rb_treeIN5cmsys6StringESt4pairIKS1_iESt10_Select1stIS4_ESt4lessIS1_ESaIS4_EE8_S_rightEPSt18_Rb_tree_node_base+0,
>>>> recompile with -ffunction-sections
>>> So did you recompile with -ffunction-sections?
>>>
>>> The basic problem is that the linker was unable to insert a jump
>>> to the requested function because it was too far away. Some targets
>>> like hppa have short branch distances and we use intermediate stub
>>> tables to get around that. However, we can't insert stub tables just
>>> anywhere, they need to go between sections. Therefore you need to
>>> break up this object file.
>> I think there is a real bug here but nobody has provided a test case.
>> -ffunction-sections
>> probably won't help.
> Confirmed, it is a regression in gcc 4.5. If I build using 4.4.6
> everything works fine. I'll file a bug report tonight.
>
Interesting, there's not much difference in the PA backend for these two 
versions.

Add me (danglin at gcc.gnu.org) to the CC list on the GCC bug report and 
I'll try to
duplicate the problem.

Thanks,
Dave

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You wrote:
> On 8/29/2011 4:12 AM, Rolf Eike Beer wrote:

> > Confirmed, it is a regression in gcc 4.5. If I build using 4.4.6
> > everything works fine. I'll file a bug report tonight.
> 
> Interesting, there's not much difference in the PA backend for these two
> versions.
> 
> Add me (danglin at gcc.gnu.org) to the CC list on the GCC bug report and
> I'll try to
> duplicate the problem.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50230

Eike
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From - Thu Nov 08 21:07:33 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.kernel.next,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc
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Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
	NeilBrown <neilb@suse.de>, linuxppc-dev@lists.ozlabs.org,
	linux-parisc@vger.kernel.org,
	"J. Bruce Fields" <bfields@redhat.com>
To: Linus <torvalds@linux-foundation.org>
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Hi Linus,

On Mon, 29 Aug 2011 10:44:51 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> After merging the fixes tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
> 
> arch/powerpc/kernel/built-in.o: In function `.sys_call_table':
> (.text+0xbd00): undefined reference to `.sys_nfsservctl'
> arch/powerpc/kernel/built-in.o: In function `.sys_call_table':
> (.text+0xbd08): undefined reference to `.compat_sys_nfsservctl'
> 
> Caused by commit f5b940997397 ("All Arch: remove linkage for
> sys_nfsservctl system call") which also missed parisc.
> 
> I will apply this patch for today:

Will you please appply this?  (repeated for ease of inclusion)

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Mon, 29 Aug 2011 10:38:57 +1000
Subject: [PATCH] remove remaining references to nfsservctl

These were missed in commit f5b940997397 "All Arch: remove linkage
for sys_nfsservctl system call" due to them having no sys_ prefix
(presumably).

Cc: NeilBrown <neilb@suse.de>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/parisc/kernel/syscall_table.S |    2 +-
 arch/powerpc/include/asm/systbl.h  |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index e66366f..3735abd 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -259,7 +259,7 @@
 	ENTRY_SAME(ni_syscall)		/* query_module */
 	ENTRY_SAME(poll)
 	/* structs contain pointers and an in_addr... */
-	ENTRY_COMP(nfsservctl)
+	ENTRY_SAME(ni_syscall)		/* was nfsservctl */
 	ENTRY_SAME(setresgid)		/* 170 */
 	ENTRY_SAME(getresgid)
 	ENTRY_SAME(prctl)
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index f6736b7..fa0d27a 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -171,7 +171,7 @@ SYSCALL_SPU(setresuid)
 SYSCALL_SPU(getresuid)
 SYSCALL(ni_syscall)
 SYSCALL_SPU(poll)
-COMPAT_SYS(nfsservctl)
+SYSCALL(ni_syscall)
 SYSCALL_SPU(setresgid)
 SYSCALL_SPU(getresgid)
 COMPAT_SYS_SPU(prctl)
-- 
1.7.5.4

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

From - Thu Nov 08 21:07:33 2018
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On Tue, 2011-08-30 at 08:32 +1000, Stephen Rothwell wrote:
> Hi Linus,
> 
> On Mon, 29 Aug 2011 10:44:51 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> >
> > After merging the fixes tree, today's linux-next build (powerpc
> > ppc64_defconfig) failed like this:
> > 
> > arch/powerpc/kernel/built-in.o: In function `.sys_call_table':
> > (.text+0xbd00): undefined reference to `.sys_nfsservctl'
> > arch/powerpc/kernel/built-in.o: In function `.sys_call_table':
> > (.text+0xbd08): undefined reference to `.compat_sys_nfsservctl'
> > 
> > Caused by commit f5b940997397 ("All Arch: remove linkage for
> > sys_nfsservctl system call") which also missed parisc.
> > 
> > I will apply this patch for today:
> 
> Will you please appply this?  (repeated for ease of inclusion)
> 
> From: Stephen Rothwell <sfr@canb.auug.org.au>
> Date: Mon, 29 Aug 2011 10:38:57 +1000
> Subject: [PATCH] remove remaining references to nfsservctl
> 
> These were missed in commit f5b940997397 "All Arch: remove linkage
> for sys_nfsservctl system call" due to them having no sys_ prefix
> (presumably).
> 
> Cc: NeilBrown <neilb@suse.de>
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: linux-parisc@vger.kernel.org
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Thanks for finding this ... definitely acked by me if necessary.

James



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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
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Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
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> The last kernel I used on this machine was 2.6.38.4. Any hints
> appreciated.

I updated the machine to 2.6.38.8 (works fine after applying
b54cd0d5053633373cd3c374aa203024cbf125a0 and reverting
c3f957a22eca106bd28136943305b390b4337ebf) and 3.0.4, which is still
broken. Any ideas?

Eike
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On Wed, Aug 31, 2011 at 11:54:29AM +0200, Rolf Eike Beer wrote:
> > The last kernel I used on this machine was 2.6.38.4. Any hints
> > appreciated.
> 
> I updated the machine to 2.6.38.8 (works fine after applying
> b54cd0d5053633373cd3c374aa203024cbf125a0 and reverting
> c3f957a22eca106bd28136943305b390b4337ebf) and 3.0.4, which is still
> broken. Any ideas?

Attach .config?
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On Wed, Aug 31, 2011 at 11:48:20AM -0400, Kyle McMartin wrote:
> Attach .config?
> 

I suspect bootmem changes have broken somewhere on 32-bit... try
inserting a few printk between each of the function calls at the start
of paging_init to try to narrow down exactly where it fails.

--Kyle
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You wrote:
> On Wed, Aug 31, 2011 at 11:48:20AM -0400, Kyle McMartin wrote:
> > Attach .config?
> 
> I suspect bootmem changes have broken somewhere on 32-bit... try
> inserting a few printk between each of the function calls at the start
> of paging_init to try to narrow down exactly where it fails.

.config is attached, I'll try to do some printk or bisecting tomorrow.

Eike
--nextPart1678851.zauVQ3EooY
Content-Disposition: attachment; filename="kernel-config-parisc-3.0.4"
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Content-Type: text/plain; charset="utf-8"; name="kernel-config-parisc-3.0.4"

#
# Automatically generated make config: don't edit
# Linux/parisc 3.0.4 Kernel Configuration
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_HAVE_IRQ_WORK=y
CONFIG_IRQ_WORK=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_DEFAULT_HOSTNAME="voyager.sf-tec.de"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
CONFIG_FHANDLE=y
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_GENERIC_HARDIRQS=y

#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_PREEMPT_RCU is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
# CONFIG_CGROUPS is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EXPERT is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_PERF_COUNTERS is not set
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y

#
# GCOV-based kernel profiling
#
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_BLOCK=y
# CONFIG_LBDAF is not set
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
CONFIG_INLINE_SPIN_UNLOCK=y
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
CONFIG_INLINE_READ_UNLOCK=y
# CONFIG_INLINE_READ_UNLOCK_BH is not set
CONFIG_INLINE_READ_UNLOCK_IRQ=y
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
CONFIG_INLINE_WRITE_UNLOCK=y
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
# CONFIG_MUTEX_SPIN_ON_OWNER is not set
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
# CONFIG_64BIT is not set
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
# CONFIG_SMP is not set
CONFIG_ARCH_FLATMEM_ENABLE=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_NEED_PER_CPU_KM=y
CONFIG_CLEANCACHE=y
# CONFIG_HPUX is not set

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
# CONFIG_GSC is not set
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
CONFIG_HOTPLUG_PCI=m
# CONFIG_HOTPLUG_PCI_FAKE is not set
# CONFIG_HOTPLUG_PCI_CPCI is not set
# CONFIG_HOTPLUG_PCI_SHPC is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_PDC_CHASSIS is not set
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=y
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=m
# CONFIG_IPV6_PRIVACY is not set
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
CONFIG_INET6_IPCOMP=m
# CONFIG_IPV6_MIP6 is not set
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=m
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
CONFIG_NETFILTER_DEBUG=y
# CONFIG_NETFILTER_ADVANCED is not set

#
# Core Netfilter Configuration
#
# CONFIG_NETFILTER_NETLINK_LOG is not set
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NETFILTER_XTABLES is not set
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV4 is not set
# CONFIG_IP_NF_IPTABLES is not set

#
# IPv6: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV6 is not set
# CONFIG_IP6_NF_IPTABLES is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set

#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_DEVTMPFS is not set
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_UMEM=m
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m

#
# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
#
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_SENSORS_LIS3LV02D is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_INTEL_MID_PTI is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_PCH_PHUB is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#
CONFIG_HAVE_IDE=y
CONFIG_IDE=y

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_IDE_GD=y
CONFIG_IDE_GD_ATA=y
# CONFIG_IDE_GD_ATAPI is not set
CONFIG_BLK_DEV_IDECD=m
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8172 is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=m
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
CONFIG_BLK_DEV_SIIMAGE=m
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=m
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_SCSI_BNX2X_FCOE is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_NSP32 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=m
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
# CONFIG_ATA_PIIX is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
CONFIG_SATA_VIA=m
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARASAN_CF is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CS5536 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
CONFIG_PATA_VIA=m
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
# CONFIG_BLK_DEV_MD is not set
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
# CONFIG_DM_RAID is not set
# CONFIG_DM_LOG_USERSPACE is not set
CONFIG_DM_ZERO=m
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
CONFIG_DM_UEVENT=y
# CONFIG_DM_FLAKEY is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_BONDING=m
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set
CONFIG_MII=m
# CONFIG_PHYLIB is not set
CONFIG_NET_ETHERNET=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_ETHOC is not set
# CONFIG_DNET is not set
CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_DE2104X_DSL=0
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_TULIP_NAPI is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_KSZ884X_PCI is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
# CONFIG_E100 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_R6040 is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SMSC9420 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SC92031 is not set
# CONFIG_ATL2 is not set
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_WAN is not set

#
# CAIF transport drivers
#
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1600
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1200
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ATKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
# CONFIG_MOUSE_PS2 is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=m
CONFIG_SERIO_SERPORT=m
# CONFIG_SERIO_PCIPS2 is not set
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVKMEM is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=13
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MFD_HSU is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_PCH_UART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
CONFIG_RAW_DRIVER=y
CONFIG_MAX_RAW_DEVS=256
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_RAMOOPS is not set
# CONFIG_I2C is not set
# CONFIG_SPI is not set

#
# PPS support
#
# CONFIG_PPS is not set

#
# PPS generators support
#

#
# PTP clock support
#

#
# Enable Device Drivers -> PPS to see the PTP clock options.
#
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set
# CONFIG_MFD_SUPPORT is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=1
# CONFIG_DRM is not set
# CONFIG_STUB_POULSBO is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_WMT_GE_ROPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_STI=y
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_LOGO_PARISC_CLUT224=y
CONFIG_SOUND=y
CONFIG_SOUND_OSS_CORE=y
# CONFIG_SOUND_OSS_CORE_PRECLAIM is not set
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_SEQUENCER=y
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_AC97_CODEC=y
CONFIG_SND_DRIVERS=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_ALOOP is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
# CONFIG_SND_AC97_POWER_SAVE is not set
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=y
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LOLA is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
# CONFIG_SND_USB is not set
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=y
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HIDRAW is not set

#
# USB Input Devices
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
CONFIG_USB_HIDDEV=y

#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=y
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
# CONFIG_HID_PRODIKEYS is not set
CONFIG_HID_CYPRESS=y
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
CONFIG_HID_EZKEY=y
# CONFIG_HID_KEYTOUCH is not set
CONFIG_HID_KYE=y
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_TWINHAN is not set
CONFIG_HID_KENSINGTON=y
# CONFIG_HID_LCPOWER is not set
CONFIG_HID_LOGITECH=y
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWII_FF is not set
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_NTRIG is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_QUANTA is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_ROCCAT_ARVO is not set
# CONFIG_HID_ROCCAT_KONE is not set
# CONFIG_HID_ROCCAT_KONEPLUS is not set
# CONFIG_HID_ROCCAT_KOVAPLUS is not set
# CONFIG_HID_ROCCAT_PYRA is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SONY is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
# CONFIG_USB_EHCI_HCD is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_WHCI_HCD is not set
# CONFIG_USB_HWA_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
CONFIG_USB_STORAGE_USBAT=m
CONFIG_USB_STORAGE_SDDR09=m
CONFIG_USB_STORAGE_SDDR55=m
CONFIG_USB_STORAGE_JUMPSHOT=m
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_NFC_DEVICES is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_STAGING is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_EXT4_FS=m
CONFIG_EXT4_FS_XATTR=y
CONFIG_EXT4_FS_POSIX_ACL=y
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD=y
CONFIG_JBD2=m
CONFIG_FS_MBCACHE=m
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
# CONFIG_MSDOS_FS is not set
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_PSTORE is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
# CONFIG_NFS_V4 is not set
# CONFIG_ROOT_NFS is not set
CONFIG_NFSD=y
# CONFIG_NFSD_DEPRECATED is not set
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V3_ACL is not set
# CONFIG_NFSD_V4 is not set
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=m
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=m

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_DEBUG_FS is not set
CONFIG_HEADERS_CHECK=y
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_HARDLOCKUP_DETECTOR is not set
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
CONFIG_DEBUG_MUTEXES=y
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
# CONFIG_SYSCTL_SYSCALL_CHECK is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_BUILD_DOCSRC is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_SAMPLES is not set
# CONFIG_TEST_KSTRTOX is not set
CONFIG_DEBUG_RODATA=y
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=m
CONFIG_CRYPTO_ALGAPI2=m
CONFIG_CRYPTO_AEAD2=m
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=m
CONFIG_CRYPTO_HASH=m
CONFIG_CRYPTO_HASH2=m
CONFIG_CRYPTO_RNG2=m
CONFIG_CRYPTO_PCOMP2=m
CONFIG_CRYPTO_MANAGER=m
CONFIG_CRYPTO_MANAGER2=m
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_GF128MUL is not set
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_WORKQUEUE=m
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=m
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
CONFIG_CRYPTO_BLOWFISH=m
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_HW is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y
CONFIG_GENERIC_ATOMIC64=y
# CONFIG_AVERAGE is not set

--nextPart1678851.zauVQ3EooY--

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From - Thu Nov 08 21:07:33 2018
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Path: news.gmane.org!not-for-mail
From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
 (code 7)
Date: Fri, 2 Sep 2011 12:30:22 +0200
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Approved: news@gmane.org
Message-ID: <65eae6bb26716d64e7f5959302b26fa9.squirrel@webmail.sf-mail.de>
References: <201108191958.35802.eike-kernel@sf-tec.de>
    <a53708ae6c6247c7ce45d4e5b8131ea7.squirrel@webmail.sf-mail.de>
    <20110831154820.GH22818@bombadil.infradead.org>
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> On Wed, Aug 31, 2011 at 11:48:20AM -0400, Kyle McMartin wrote:
>> Attach .config?
>>
>
> I suspect bootmem changes have broken somewhere on 32-bit... try
> inserting a few printk between each of the function calls at the start
> of paging_init to try to narrow down exactly where it fails.

It's flush_cache_all_local() that fails.

Eike
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On 19-Aug-11, at 1:58 PM, Rolf Eike Beer wrote:

> unwind_init: start = 0x10503000, end = 0x1053a640, entries = 14180
> WARNING: Out of order unwind entry! 105041f0 and 10504200
> WARNING: Out of order unwind entry! 10504200 and 10504210
> WARNING: Out of order unwind entry! 10504cf0 and 10504d00
> WARNING: Out of order unwind entry! 10504d00 and 10504d10

This is fixed in current binutils.  Current binutils also fixes non  
equivalent aliasing
bug that affects PA8800/PA8900 systems.

> IASQ: 00000000 00000000 IAOQ: 1010047c 10100480


IAOQ head provides the location of interruption.  It was a instruction  
memory
protection fault.  Since this is a kernel address, this likely  
indicates the page
tables weren't setup correctly, or the instruction cache wasn't  
flushed correctly.

I'm thinking it would help to localize the change that introduced the
interruption.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:07:34 2018
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You wrote:
> On 19-Aug-11, at 1:58 PM, Rolf Eike Beer wrote:
> > unwind_init: start = 0x10503000, end = 0x1053a640, entries = 14180
> > WARNING: Out of order unwind entry! 105041f0 and 10504200
> > WARNING: Out of order unwind entry! 10504200 and 10504210
> > WARNING: Out of order unwind entry! 10504cf0 and 10504d00
> > WARNING: Out of order unwind entry! 10504d00 and 10504d10
> 
> This is fixed in current binutils.  Current binutils also fixes non
> equivalent aliasing
> bug that affects PA8800/PA8900 systems.

The kernel.org or the GNU version?

> > IASQ: 00000000 00000000 IAOQ: 1010047c 10100480
> 
> IAOQ head provides the location of interruption.  It was a instruction
> memory
> protection fault.  Since this is a kernel address, this likely
> indicates the page
> tables weren't setup correctly, or the instruction cache wasn't
> flushed correctly.
> 
> I'm thinking it would help to localize the change that introduced the
> interruption.

I'll try to bisect this in the next days.

Eike
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From - Thu Nov 08 21:07:34 2018
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On 4-Sep-11, at 12:35 PM, Rolf Eike Beer wrote:

> You wrote:
>> On 19-Aug-11, at 1:58 PM, Rolf Eike Beer wrote:
>>> unwind_init: start = 0x10503000, end = 0x1053a640, entries = 14180
>>> WARNING: Out of order unwind entry! 105041f0 and 10504200
>>> WARNING: Out of order unwind entry! 10504200 and 10504210
>>> WARNING: Out of order unwind entry! 10504cf0 and 10504d00
>>> WARNING: Out of order unwind entry! 10504d00 and 10504d10
>>
>> This is fixed in current binutils.  Current binutils also fixes non
>> equivalent aliasing
>> bug that affects PA8800/PA8900 systems.
>
> The kernel.org or the GNU version?


I don't recall exactly the kernel version.  Helge made the changes.
The binutils changes for it are in 2.21 and head.  They were applied
in the latter part of 2009.

The equivalent aliasing fix is also in 2.21 and head.  However,
it wasn't in the initial 2.21 release.

Dave
--
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From - Thu Nov 08 21:07:34 2018
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From - Thu Nov 08 21:07:34 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
 (code 7)
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>> On Wed, Aug 31, 2011 at 11:48:20AM -0400, Kyle McMartin wrote:
>>> Attach .config?
>>>
>>
>> I suspect bootmem changes have broken somewhere on 32-bit... try
>> inserting a few printk between each of the function calls at the start
>> of paging_init to try to narrow down exactly where it fails.
>
> It's flush_cache_all_local() that fails.

2.6.39.4 works.

Eike
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From - Thu Nov 08 21:07:34 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
 (code 7)
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On Tue, Sep 06, 2011 at 09:40:13AM +0200, Rolf Eike Beer wrote:
> >> I suspect bootmem changes have broken somewhere on 32-bit... try
> >> inserting a few printk between each of the function calls at the start
> >> of paging_init to try to narrow down exactly where it fails.
> >
> > It's flush_cache_all_local() that fails.
> 
> 2.6.39.4 works.
> 

Well... that's weird.

--Kyle
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From - Thu Nov 08 21:07:34 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
 (code 7)
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On Tue, Sep 06, 2011 at 09:46:11AM -0400, Kyle McMartin wrote:
> > >> I suspect bootmem changes have broken somewhere on 32-bit... try
> > >> inserting a few printk between each of the function calls at the start
> > >> of paging_init to try to narrow down exactly where it fails.
> > >
> > > It's flush_cache_all_local() that fails.
> > 
> > 2.6.39.4 works.
> > 
> 
> Well... that's weird.
> 
   0:	43 ff ff 40 	ldb 7fa0(r31),r31

Is the faulting insn, and %r31 is 00000000... so
we're looking at 32672, which looks suspiciously like
a negative offset from 32768.

Looks like it's a null pointer dereference, there shouldn't be anything
useful at this address, if I remember our address space map correctly.

--Kyle
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From - Thu Nov 08 21:07:34 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
 (code 7)
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On Tue, 2011-09-06 at 10:00 -0400, Kyle McMartin wrote:
> On Tue, Sep 06, 2011 at 09:46:11AM -0400, Kyle McMartin wrote:
> > > >> I suspect bootmem changes have broken somewhere on 32-bit... try
> > > >> inserting a few printk between each of the function calls at the start
> > > >> of paging_init to try to narrow down exactly where it fails.
> > > >
> > > > It's flush_cache_all_local() that fails.
> > > 
> > > 2.6.39.4 works.
> > > 
> > 
> > Well... that's weird.
> > 
>    0:	43 ff ff 40 	ldb 7fa0(r31),r31
> 
> Is the faulting insn, and %r31 is 00000000... so
> we're looking at 32672, which looks suspiciously like
> a negative offset from 32768.
> 
> Looks like it's a null pointer dereference, there shouldn't be anything
> useful at this address, if I remember our address space map correctly.

It's possible that one of the flushing patches is to blame; I just can't
see how.  Most likely is

commit d7dd2ff11b7fcd425aca5a875983c862d19a67ae
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date:   Thu Apr 14 18:25:21 2011 -0500

    [PARISC] only make executable areas executable

Least likely:

commit b7d45818444a31948cfc7849136013a0ea54b2fb
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date:   Fri Apr 15 12:37:22 2011 -0500

    [PARISC] prevent speculative re-read on cache flush

James



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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
 (code 7)
Date: Tue, 6 Sep 2011 10:20:25 -0400
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Cc: Rolf Eike Beer <eike-kernel@sf-tec.de>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Tue, Sep 06, 2011 at 09:15:07AM -0500, James Bottomley wrote:
> It's possible that one of the flushing patches is to blame; I just can't
> see how.  Most likely is
> 
> commit d7dd2ff11b7fcd425aca5a875983c862d19a67ae
> Author: James Bottomley <James.Bottomley@HansenPartnership.com>
> Date:   Thu Apr 14 18:25:21 2011 -0500
> 
>     [PARISC] only make executable areas executable
> 

This looks promising, the second commit doesn't touch the flush_*_local,
so I think it's probably not a candidate.

Rolf, can you revert d7dd2ff11b7fcd425aca5a875983c862d19a67ae and see
what happens?

Thanks James.

--Kyle

> Least likely:
> 
> commit b7d45818444a31948cfc7849136013a0ea54b2fb
> Author: James Bottomley <James.Bottomley@HansenPartnership.com>
> Date:   Fri Apr 15 12:37:22 2011 -0500
> 
>     [PARISC] prevent speculative re-read on cache flush
> 
> James
> 
> 
> 
> 
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From - Thu Nov 08 21:07:34 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
 (code 7)
Date: Tue, 06 Sep 2011 10:41:16 -0400
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To: Kyle McMartin <kyle@mcmartin.ca>
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On 9/6/2011 10:00 AM, Kyle McMartin wrote:
> On Tue, Sep 06, 2011 at 09:46:11AM -0400, Kyle McMartin wrote:
>>>>> I suspect bootmem changes have broken somewhere on 32-bit... try
>>>>> inserting a few printk between each of the function calls at the start
>>>>> of paging_init to try to narrow down exactly where it fails.
>>>> It's flush_cache_all_local() that fails.
>>> 2.6.39.4 works.
>>>
>> Well... that's weird.
>>
>     0:	43 ff ff 40 	ldb 7fa0(r31),r31
>
> Is the faulting insn, and %r31 is 00000000... so
> we're looking at 32672, which looks suspiciously like
> a negative offset from 32768.
>
> Looks like it's a null pointer dereference, there shouldn't be anything
> useful at this address, if I remember our address space map correctly.
The fault was code 7.  Also, I don't think this instruction is in 
flush_cache_all_local
(at least I don't see it in 64-bit kernel).  So, I think the problem is 
in setting up the address
space map.

In my testing with 64-bit kernels, I have noticed that the first call to 
flush_cache_range
doesn't have a range consistent with our 32-bit user address space.

Dave

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John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:07:34 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
 (code 7)
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> On 9/6/2011 10:00 AM, Kyle McMartin wrote:
>> On Tue, Sep 06, 2011 at 09:46:11AM -0400, Kyle McMartin wrote:
>>>>>> I suspect bootmem changes have broken somewhere on 32-bit... try
>>>>>> inserting a few printk between each of the function calls at the
>>>>>> start
>>>>>> of paging_init to try to narrow down exactly where it fails.
>>>>> It's flush_cache_all_local() that fails.
>>>> 2.6.39.4 works.
>>>>
>>> Well... that's weird.
>>>
>>     0:	43 ff ff 40 	ldb 7fa0(r31),r31
>>
>> Is the faulting insn, and %r31 is 00000000... so
>> we're looking at 32672, which looks suspiciously like
>> a negative offset from 32768.
>>
>> Looks like it's a null pointer dereference, there shouldn't be anything
>> useful at this address, if I remember our address space map correctly.
> The fault was code 7.  Also, I don't think this instruction is in
> flush_cache_all_local
> (at least I don't see it in 64-bit kernel).  So, I think the problem is
> in setting up the address
> space map.
>
> In my testing with 64-bit kernels, I have noticed that the first call to
> flush_cache_range
> doesn't have a range consistent with our 32-bit user address space.

This is a 32 bit kernel.

Eike
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From - Thu Nov 08 21:07:34 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
 (code 7)
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> On Tue, Sep 06, 2011 at 09:15:07AM -0500, James Bottomley wrote:
>> It's possible that one of the flushing patches is to blame; I just can't
>> see how.  Most likely is
>>
>> commit d7dd2ff11b7fcd425aca5a875983c862d19a67ae
>> Author: James Bottomley <James.Bottomley@HansenPartnership.com>
>> Date:   Thu Apr 14 18:25:21 2011 -0500
>>
>>     [PARISC] only make executable areas executable
>>
>
> This looks promising, the second commit doesn't touch the flush_*_local,
> so I think it's probably not a candidate.
>
> Rolf, can you revert d7dd2ff11b7fcd425aca5a875983c862d19a67ae and see
> what happens?

Yes, testing.

Eike
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From - Thu Nov 08 21:07:35 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
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Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
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> On Tue, Sep 06, 2011 at 09:15:07AM -0500, James Bottomley wrote:
>> It's possible that one of the flushing patches is to blame; I just can't
>> see how.  Most likely is
>>
>> commit d7dd2ff11b7fcd425aca5a875983c862d19a67ae
>> Author: James Bottomley <James.Bottomley@HansenPartnership.com>
>> Date:   Thu Apr 14 18:25:21 2011 -0500
>>
>>     [PARISC] only make executable areas executable
>>
>
> This looks promising, the second commit doesn't touch the flush_*_local,
> so I think it's probably not a candidate.
>
> Rolf, can you revert d7dd2ff11b7fcd425aca5a875983c862d19a67ae and see
> what happens?

What happens is that the system boots and from a first glance seems to
work fine.

Eike
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On 29-Aug-11, at 2:31 PM, Rolf Eike Beer wrote:

> You wrote:
>> On 8/29/2011 4:12 AM, Rolf Eike Beer wrote:
>
>>> Confirmed, it is a regression in gcc 4.5. If I build using 4.4.6
>>> everything works fine. I'll file a bug report tonight.
>>
>> Interesting, there's not much difference in the PA backend for  
>> these two
>> versions.
>>
>> Add me (danglin at gcc.gnu.org) to the CC list on the GCC bug  
>> report and
>> I'll try to
>> duplicate the problem.
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50230
>
> Eike


The problem appears to be that comdat groups and stubs don't get along
with each other.  Comdat groups seem to get merged and this can result
in out of range branches.

Linking with the --unique='.text.*' option avoids the error, but this  
probably
breaks comdat and discard support.

For now, I think the best solution (untested) is to configure GCC with  
the
--disable-comdat option.

I'm going to file a binutils PR.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:07:35 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: Link error in CMake for HPPA1.1, wrong result for HPPA 2.0
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On 9/7/2011 7:35 PM, John David Anglin wrote:
> 
> On 29-Aug-11, at 2:31 PM, Rolf Eike Beer wrote:
> 
>> You wrote:
>>> On 8/29/2011 4:12 AM, Rolf Eike Beer wrote:
>>
>>>> Confirmed, it is a regression in gcc 4.5. If I build using 4.4.6
>>>> everything works fine. I'll file a bug report tonight.
>>>
>>> Interesting, there's not much difference in the PA backend for these two
>>> versions.
>>>
>>> Add me (danglin at gcc.gnu.org) to the CC list on the GCC bug report and
>>> I'll try to
>>> duplicate the problem.
>>
>> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50230
>>
>> Eike
> 
> 
> The problem appears to be that comdat groups and stubs don't get along
> with each other.  Comdat groups seem to get merged and this can result
> in out of range branches.
> 
> Linking with the --unique='.text.*' option avoids the error, but this probably
> breaks comdat and discard support.
> 
> For now, I think the best solution (untested) is to configure GCC with the
> --disable-comdat option.
> 
> I'm going to file a binutils PR.

Interesting analysis.

I don't see how you can fix this though.

Support multiple comdat groups and arrange for the merging to
happen correctly?

Cheers,
Carlos.

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Not MLM...and
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No Cold Phone Calling.=20
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It=92s surprisingly cool!

Dan and Noel


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From - Thu Nov 08 21:07:35 2018
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Subject: failure to link kernel 3.0.3 with cross binutils-2.21.1/gcc-4.6.1
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Toolchain build like so:

grg@eye7:~$ cat bin/hppa64-cross.sh
#!/bin/sh

PREFIX=/tmp/hppa65
TARGET=hppa64-linux
HOST=x86_64-slackware-linux
BINUTILS=binutils-2.21.1
GCC=gcc-4.6.1
TMPDIR=/tmp
MAKEOPTS="-j 8"

PATH=$PREFIX/bin:$PATH

die() {
	echo "||||||"
	echo "ERROR: $@"
	exit 1
}

### Binutils
do_binutils() {
	cd $TMPDIR
	tar xf $BINUTILS.tar.bz2

	mkdir build-$BINUTILS
	cd build-$BINUTILS

	../$BINUTILS/configure \
		--target=$TARGET \
		--prefix=$PREFIX \
		|| return 1

	make $MAKEOPTS || return 1
	make $MAKEOPTS install || return 1
}

### GCC, initial gcc without threading or shared library support
do_gcc1() {
	cd $TMPDIR
	tar xf $GCC.tar.bz2

	mkdir build-$GCC-1
	cd build-$GCC-1

	export AR=ar

	../$GCC/configure \
		--target=$TARGET \
		--host=$HOST \
		--build=$HOST \
		--prefix=$PREFIX \
		--with-newlib \
		--disable-shared \
		--disable-threads \
		--disable-multilib \
		--disable-libmudflap \
		--disable-libssp \
		--disable-libgomp \
		--disable-libquadmath \
		--enable-languages=c \
		$GCC1_EXTRA_CONF \
		|| return 1

	make $MAKEOPTS || return 1
	make $MAKEOPTS install || return 1
}

do_clean() {
	cd $TMPDIR
	rm -fr build-$BINUTILS build-$GCC-1
	rm -fr $BINUTILS $GCC $GLIBC $LINUX
}


do_clean
do_binutils || die "do_binutils failed"
do_gcc1 || die "do_gcc1 failed"





grg@eye7:/mnt/1T/hppa/linux-3.0$ make vmlinux ARCH=parisc
CROSS_COMPILE=/tmp/hppa64/bin/hppa64-linux-
  CHK     include/linux/version.h
  CHK     include/generated/utsrelease.h
  CALL    scripts/checksyscalls.sh
  CHK     include/generated/compile.h
  LD      vmlinux.o
  MODPOST vmlinux.o
  GEN     .version
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
  KSYM    .tmp_kallsyms1.S
  AS      .tmp_kallsyms1.o
  LD      .tmp_vmlinux2
/tmp/hppa64/bin/hppa64-linux-ld:
arch/parisc/mm/built-in.o(.init.text+0xed0): cannot reach
flush_tlb_all_local
/tmp/hppa64/bin/hppa64-linux-ld: BFD (GNU Binutils) 2.21.1 internal
error, aborting at ../../binutils-2.21.1/bfd/elf64-hppa.c line 3956 in
elf64_hppa_relocate_section

/tmp/hppa64/bin/hppa64-linux-ld: Please report this bug.

make: *** [.tmp_vmlinux2] Error 1



Any clues?
-Graham
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From - Thu Nov 08 21:07:35 2018
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Subject: Re: failure to link kernel 3.0.3 with cross
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> grg@eye7:/mnt/1T/hppa/linux-3.0$ make vmlinux ARCH=parisc
> CROSS_COMPILE=/tmp/hppa64/bin/hppa64-linux-
>   CHK     include/linux/version.h
>   CHK     include/generated/utsrelease.h
>   CALL    scripts/checksyscalls.sh
>   CHK     include/generated/compile.h
>   LD      vmlinux.o
>   MODPOST vmlinux.o
>   GEN     .version
>   CHK     include/generated/compile.h
>   UPD     include/generated/compile.h
>   CC      init/version.o
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
>   KSYM    .tmp_kallsyms1.S
>   AS      .tmp_kallsyms1.o
>   LD      .tmp_vmlinux2
> /tmp/hppa64/bin/hppa64-linux-ld:
> arch/parisc/mm/built-in.o(.init.text+0xed0): cannot reach
> flush_tlb_all_local
> /tmp/hppa64/bin/hppa64-linux-ld: BFD (GNU Binutils) 2.21.1 internal
> error, aborting at ../../binutils-2.21.1/bfd/elf64-hppa.c line 3956 in
> elf64_hppa_relocate_section
>
> /tmp/hppa64/bin/hppa64-linux-ld: Please report this bug.
>
> make: *** [.tmp_vmlinux2] Error 1
>
> Any clues?

Maybe related to this:

http://sourceware.org/bugzilla/show_bug.cgi?id=13168

Eike
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From - Thu Nov 08 21:07:35 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: failure to link kernel 3.0.3 with cross binutils-2.21.1/gcc-4.6.1
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On 9/13/2011 3:20 AM, Graham Gower wrote:
> /tmp/hppa64/bin/hppa64-linux-ld:
> arch/parisc/mm/built-in.o(.init.text+0xed0): cannot reach
> flush_tlb_all_local
> /tmp/hppa64/bin/hppa64-linux-ld: BFD (GNU Binutils) 2.21.1 internal
> error, aborting at ../../binutils-2.21.1/bfd/elf64-hppa.c line 3956 in
> elf64_hppa_relocate_section
>
> Any clues?
Check the relocation at arch/parisc/mm/built-in.o(.init.text+0xed0) with 
readelf
or objdump.  It should be R_PARISC_PCREL22F.  If this isn't a 22-bit branch,
then the call needs changing (e.g., change a bl to b,l).

If this is a 22-bit call, then you will have to remove some stuff from 
your .config.
Maybe use more modules.

The hppa64 linker doesn't have stub support  for long calls.  The maximum
branch distance (R_PARISC_PCREL22F) is 8388608 bytes.

Stub support could be added to hppa64 in a manner similar to that for 
hppa32,
but there isn't a 64-bit userspace except on HP-UX.  On HP-UX, the HP linker
is better.  I made a number of changes a few years ago to make this possible
but there's still quite a bit of work involved.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:07:35 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: failure to link kernel 3.0.3 with cross binutils-2.21.1/gcc-4.6.1
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Cc: Graham Gower <graham.gower@gmail.com>, linux-parisc@vger.kernel.org
To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 9/13/2011 3:48 AM, Rolf Eike Beer wrote:
>> grg@eye7:/mnt/1T/hppa/linux-3.0$ make vmlinux ARCH=parisc
>> CROSS_COMPILE=/tmp/hppa64/bin/hppa64-linux-
>>    CHK     include/linux/version.h
>>    CHK     include/generated/utsrelease.h
>>    CALL    scripts/checksyscalls.sh
>>    CHK     include/generated/compile.h
>>    LD      vmlinux.o
>>    MODPOST vmlinux.o
>>    GEN     .version
>>    CHK     include/generated/compile.h
>>    UPD     include/generated/compile.h
>>    CC      init/version.o
>>    LD      init/built-in.o
>>    LD      .tmp_vmlinux1
>>    KSYM    .tmp_kallsyms1.S
>>    AS      .tmp_kallsyms1.o
>>    LD      .tmp_vmlinux2
>> /tmp/hppa64/bin/hppa64-linux-ld:
>> arch/parisc/mm/built-in.o(.init.text+0xed0): cannot reach
>> flush_tlb_all_local
>> /tmp/hppa64/bin/hppa64-linux-ld: BFD (GNU Binutils) 2.21.1 internal
>> error, aborting at ../../binutils-2.21.1/bfd/elf64-hppa.c line 3956 in
>> elf64_hppa_relocate_section
>>
>> /tmp/hppa64/bin/hppa64-linux-ld: Please report this bug.
>>
>> make: *** [.tmp_vmlinux2] Error 1
>>
>> Any clues?
> Maybe related to this:
>
> http://sourceware.org/bugzilla/show_bug.cgi?id=13168
>
>
No, the 64-bit linker is different and doesn't have stub support for 
long calls.  The above
bug is a section merging problem (specifically comdat groups).  The 
merging prevents
the normal insertion of stub sections.  It wouldn't happen if cmake 
didn't use vague linking.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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On 13 September 2011 23:25, John David Anglin <dave.anglin@bell.net> wrote:
> If this is a 22-bit call, then you will have to remove some stuff from your
> .config.
> Maybe use more modules.

It was a 22 bit call and cutting down my config made it link. Thanks.

-Graham
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Since commit [c58543c8: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).

So now this flag is a NOOP and can be removed.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
---
 arch/parisc/include/asm/floppy.h |    4 ++--
 arch/parisc/kernel/irq.c         |    4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/include/asm/floppy.h b/arch/parisc/include/asm/floppy.h
index 4ca69f5..f84ff12 100644
--- a/arch/parisc/include/asm/floppy.h
+++ b/arch/parisc/include/asm/floppy.h
@@ -157,10 +157,10 @@ static int fd_request_irq(void)
 {
 	if(can_use_virtual_dma)
 		return request_irq(FLOPPY_IRQ, floppy_hardint,
-				   IRQF_DISABLED, "floppy", NULL);
+				   0, "floppy", NULL);
 	else
 		return request_irq(FLOPPY_IRQ, floppy_interrupt,
-				   IRQF_DISABLED, "floppy", NULL);
+				   0, "floppy", NULL);
 }
 
 static unsigned long dma_mem_alloc(unsigned long size)
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..420676b 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
-	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+	.flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
-	.flags = IRQF_DISABLED | IRQF_PERCPU,
+	.flags = IRQF_PERCPU,
 };
 #endif
 
-- 
1.7.4.1


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Subject: [PATCH 40/57] dirvers/parisc: irq: Remove IRQF_DISABLED
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Since commit [c58543c8: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).

So now this flag is a NOOP and can be removed.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
---
 drivers/parisc/superio.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index e3b76d4..5e6fd94e 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -274,7 +274,7 @@ superio_init(struct pci_dev *pcidev)
 	else
 		printk(KERN_ERR PFX "USB regulator not initialized!\n");
 
-	if (request_irq(pdev->irq, superio_interrupt, IRQF_DISABLED,
+	if (request_irq(pdev->irq, superio_interrupt, 0,
 			SUPERIO, (void *)sio)) {
 
 		printk(KERN_ERR PFX "could not get irq\n");
-- 
1.7.4.1


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Subject: Re: [PATCH 40/57] dirvers/parisc: irq: Remove IRQF_DISABLED
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	tglx@linutronix.de, Kyle McMartin <kyle@mcmartin.ca>,
	Helge Deller <deller@gmx.de>,
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To: Yong Zhang <yong.zhang0@gmail.com>
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Firstly, we don't need 57 patches doing this ... a single one through
the trivial tree should be sufficient (and it can nuke the flag at the
same time).

On Wed, 2011-09-21 at 17:28 +0800, Yong Zhang wrote:
> Since commit [c58543c8: genirq: Run irq handlers with interrupts disabled],

um, that's commit e58aa3d2d0cc01ad8d6f7f640a0670433f794922

James




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Subject: Re: [PATCH 40/57] dirvers/parisc: irq: Remove IRQF_DISABLED
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On Wed, Sep 21, 2011 at 02:07:04PM +0400, James Bottomley wrote:
> Firstly, we don't need 57 patches doing this ... a single one through
> the trivial tree should be sufficient (and it can nuke the flag at the
> same time).
> 
> On Wed, 2011-09-21 at 17:28 +0800, Yong Zhang wrote:
> > Since commit [c58543c8: genirq: Run irq handlers with interrupts disabled],
> 
> um, that's commit e58aa3d2d0cc01ad8d6f7f640a0670433f794922

Ah, yes, not sure how I make it wrong.

Thanks,
Yong

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Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).

So now this flag is a NOOP and can be removed.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
---
 arch/parisc/include/asm/floppy.h |    4 ++--
 arch/parisc/kernel/irq.c         |    4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/include/asm/floppy.h b/arch/parisc/include/asm/floppy.h
index 4ca69f5..f84ff12 100644
--- a/arch/parisc/include/asm/floppy.h
+++ b/arch/parisc/include/asm/floppy.h
@@ -157,10 +157,10 @@ static int fd_request_irq(void)
 {
 	if(can_use_virtual_dma)
 		return request_irq(FLOPPY_IRQ, floppy_hardint,
-				   IRQF_DISABLED, "floppy", NULL);
+				   0, "floppy", NULL);
 	else
 		return request_irq(FLOPPY_IRQ, floppy_interrupt,
-				   IRQF_DISABLED, "floppy", NULL);
+				   0, "floppy", NULL);
 }
 
 static unsigned long dma_mem_alloc(unsigned long size)
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..420676b 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
-	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+	.flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
-	.flags = IRQF_DISABLED | IRQF_PERCPU,
+	.flags = IRQF_PERCPU,
 };
 #endif
 
-- 
1.7.4.1


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From: Yong Zhang <yong.zhang0@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH 40/55] dirvers/parisc: irq: Remove IRQF_DISABLED
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Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).

So now this flag is a NOOP and can be removed.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
---
 drivers/parisc/superio.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index e3b76d4..5e6fd94e 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -274,7 +274,7 @@ superio_init(struct pci_dev *pcidev)
 	else
 		printk(KERN_ERR PFX "USB regulator not initialized!\n");
 
-	if (request_irq(pdev->irq, superio_interrupt, IRQF_DISABLED,
+	if (request_irq(pdev->irq, superio_interrupt, 0,
 			SUPERIO, (void *)sio)) {
 
 		printk(KERN_ERR PFX "could not get irq\n");
-- 
1.7.4.1


From - Thu Nov 08 21:07:36 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: HPMC running CMake Nightly tests
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I'm running the CMake tests every night. This is the second time in a row
that my C3600 did not survive this. Since I was warned I connected a
serial console.

The first things are expected crashes from CMake as detecting a crashed
process is part of the tests. I wonder if these shouldn't be silenced as a
userspace crash could otherwise too easily be used to flood the logs.

do_page_fault() pid=16799 command='kwsysTestProces' type=15
address=0x00000000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  0006ff0f 1041b000 00011ee3 fb46f4c0
r04-07  4072adc0 00000000 fb36b02c 0001cd60
r08-11  00000000 000e6e20 00000000 00000000
r12-15  00000000 000e59c0 000e2d24 ffffffff
r16-19  000e2d14 000e3e20 00000000 4072adc0
r20-23  1054f020 00000000 406427e4 ffffffff
r24-27  fffffff5 ffffffd3 4072cd24 0001b0e4
r28-31  00000000 00000001 fb46f500 4063192b
sr00-03  00000030 00000017 00000000 00000030
sr04-07  00000030 00000030 00000030 00000030

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  41d3a02318ce6e4c 2800000000000000 0000000190000000 402e000000000000
fr08-11  000000601be80000 1059900010544330 0000000000000000 105fbd602fc260c8
fr12-15  41d3a01d2d9ab424 0000008110131d00 105b68001055eca8 1055eca810560cf0
fr16-19  0004000f1055f000 10131d0000000003 105b48c0105b48f4 000000371055f1e8
fr20-23  2fc30158105a4800 3b9aca001055f000 000000000000002f 00001c7418c00000
fr24-27  410b865000000000 3fe0000000000000 412e848000000000 1029341c102c3848
fr28-31  ffffffff000032a4 1055f1d010544000 0000000100000228 2fc302001011a264

IASQ: 00000030 00000030 IAOQ: 00011ee7 00011eeb
 IIR: 0f801280    ISR: 00000030  IOR: 00000000
 CPU:        0   CR30: 2ed5c000 CR31: ffffdffe
 ORIG_R28: 00000000
 IAOQ[0]: 00011ee7
 IAOQ[1]: 00011eeb
 RP(r2): 00011ee3

do_page_fault() pid=16827 command='kwsysTestProces' type=15
address=0x00000000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  0006ff0f 1041b000 00011ee3 fb2a74c0
r04-07  4072adc0 00000000 fb61702c 0001cd60
r08-11  00000000 000e6e20 00000000 00000000
r12-15  00000000 000e59c0 000e2d24 ffffffff
r16-19  000e2d14 000e3e20 00000000 4072adc0
r20-23  1054f020 00000000 406427e4 ffffffff
r24-27  fffffff5 ffffffd3 4072cd24 0001b0e4
r28-31  00000000 00000001 fb2a7500 4063192b
sr00-03  00000032 00000017 00000000 00000032
sr04-07  00000032 00000032 00000032 00000032

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  41d3a02319c7bbbf 2800000000000000 0000000190000000 403e000000000000
fr08-11  0000005c3e100000 1059900010544330 0000000000000000 105fbd602fc260c8
fr12-15  41d3a01d2d9ab424 0000008110131d00 105b68001055eca8 1055eca810560cf0
fr16-19  0004000f1055f000 10131d0000000003 105b48c0105b48f4 000000371055f1e8
fr20-23  2fc30158105a4800 3b9aca001055f000 000000000000002f 00001c7419c00000
fr24-27  40fd802000000000 3fe0000000000000 412e848000000000 1029341c102c3848
fr28-31  ffffffff000032a4 1055f1d010544000 0000000100000228 2fc302001011a264

IASQ: 00000032 00000032 IAOQ: 00011ee7 00011eeb
 IIR: 0f801280    ISR: 00000032  IOR: 00000000
 CPU:        0   CR30: 2095c000 CR31: ffffdffe
 ORIG_R28: 00000000
 IAOQ[0]: 00011ee7
 IAOQ[1]: 00011eeb
 RP(r2): 00011ee3

But then the machine got killed:

Backtrace:
 [<1030b9ec>] tulip_get_stats+0x34/0x5c
 [<1038ac20>] dev_get_stats+0x98/0xe8
 [<102946b4>] led_work_func+0x11c/0x310
 [<10145204>] process_one_work+0x120/0x3ac
 [<10147110>] worker_thread+0x174/0x338
 [<1014b0b4>] kthread+0x9c/0xa4
 [<10102c5c>] ret_from_kernel_thread+0x1c/0x24


High Priority Machine Check (HPMC): Code=1 regs=10551080 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110 Not tainted
r00-03  0004ff0e 105bf000 1030b9ec 2fc72000
r04-07  0000000f 00000000 00000000 00000000
r08-11  2fc72000 105bf600 2fea4208 7f000000
r12-15  2fea4210 105ba000 10544000 2fc2f408
r16-19  1041d1dc f000017c f0000174 2fea4210
r20-23  0099f055 0099f050 1030b9b8 00000000
r24-27  2ff57008 2fea4210 0004a040 10544000
r28-31  0004a040 f68e066d 2fea4400 1038ac20
sr00-03  00000000 00000000 00000000 00000017
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10284394 10284398
 IIR: 0f80109c    ISR: a627ffd0  IOR: 0204a040
 CPU:        0   CR30: 2fea4000 CR31: ffffdffe
 ORIG_R28: 00000000
 IAOQ[0]: ioread32+0xc/0x4c
 IAOQ[1]: ioread32+0x10/0x4c
 RP(r2): tulip_get_stats+0x34/0x5c
Backtrace:
 [<1030b9ec>] tulip_get_stats+0x34/0x5c
 [<1038ac20>] dev_get_stats+0x98/0xe8
 [<102946b4>] led_work_func+0x11c/0x310
 [<10145204>] process_one_work+0x120/0x3ac
 [<10147110>] worker_thread+0x174/0x338
 [<1014b0b4>] kthread+0x9c/0xa4
 [<10102c5c>] ret_from_kernel_thread+0x1c/0x24

Kernel panic - not syncing: High Priority Machine Check (HPMC)
Backtrace:
 [<1010edec>] panic+0x90/0x23c
 [<101143b8>] parisc_terminate+0xbc/0xd4
 [<1011458c>] handle_interruption+0x1bc/0x718
 [<10103078>] intr_check_sig+0x0/0x34
 [<10284398>] ioread32+0x10/0x4c
 [<103e8fc0>] bictcp_acked+0x0/0x228

I'm running 3.0.4 with d7dd2ff11b7fcd425aca5a875983c862d19a67ae reverted.

Any hints?

Eike
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From - Thu Nov 08 21:07:36 2018
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From - Thu Nov 08 21:07:36 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: futex: Use same lock set as lws calls
Date: Sun, 9 Oct 2011 16:40:10 -0400
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	carlos@systemhalted.org
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In debugging the failure of the glibc tst-cond18 test on parisc, I realized
that futexes need to use the same locks the lws calls.  This fixes all the
pthread 'cond' tests.  Sadly, there are still problems with thread cancellation.

Signed-of-by: John David Anglin <dave.anglin@bell.net>

diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 2388bdb..a8d0586 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -8,6 +8,29 @@
 #include <asm/atomic.h>
 #include <asm/errno.h>
 
+/* The following has to match the LWS code in syscall.S.  We have
+   sixteen four-word locks. */
+
+static inline void
+_futex_spin_lock_irqsave (u32 __user *uaddr, unsigned long int *flags)
+{
+  extern u32 lws_lock_start[];
+  long index = ((long)uaddr & 0xf0) >> 2;
+  arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
+  local_irq_save(*flags);
+  arch_spin_lock(s);
+}
+
+static inline void
+_futex_spin_unlock_irqrestore (u32 __user *uaddr, unsigned long int *flags)
+{
+  extern u32 lws_lock_start[];
+  long index = ((long)uaddr & 0xf0) >> 2;
+  arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
+  arch_spin_unlock(s);
+  local_irq_restore(*flags);
+}
+
 static inline int
 futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 {
@@ -26,7 +49,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_disable();
 
-	_atomic_spin_lock_irqsave(uaddr, flags);
+	_futex_spin_lock_irqsave(uaddr, &flags);
 
 	switch (op) {
 	case FUTEX_OP_SET:
@@ -71,7 +94,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 		ret = -ENOSYS;
 	}
 
-	_atomic_spin_unlock_irqrestore(uaddr, flags);
+	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
 	pagefault_enable();
 
@@ -113,7 +136,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	 * address. This should scale to a couple of CPUs.
 	 */
 
-	_atomic_spin_lock_irqsave(uaddr, flags);
+	_futex_spin_lock_irqsave(uaddr, &flags);
 
 	ret = get_user(val, uaddr);
 
@@ -122,7 +145,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 
 	*uval = val;
 
-	_atomic_spin_unlock_irqrestore(uaddr, flags);
+	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
 	return ret;
 }

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:07:36 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
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Subject: Re: [PATCH] parisc: futex: Use same lock set as lws calls
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> In debugging the failure of the glibc tst-cond18 test on parisc, I
> realized
> that futexes need to use the same locks the lws calls.  This fixes all the
> pthread 'cond' tests.  Sadly, there are still problems with thread
> cancellation.
>
> Signed-of-by: John David Anglin <dave.anglin@bell.net>
>
> diff --git a/arch/parisc/include/asm/futex.h
> b/arch/parisc/include/asm/futex.h
> index 2388bdb..a8d0586 100644
> --- a/arch/parisc/include/asm/futex.h
> +++ b/arch/parisc/include/asm/futex.h
> @@ -8,6 +8,29 @@
>  #include <asm/atomic.h>
>  #include <asm/errno.h>
>
> +/* The following has to match the LWS code in syscall.S.  We have
> +   sixteen four-word locks. */
> +
> +static inline void
> +_futex_spin_lock_irqsave (u32 __user *uaddr, unsigned long int *flags)
> +{
> +  extern u32 lws_lock_start[];
> +  long index = ((long)uaddr & 0xf0) >> 2;
> +  arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
> +  local_irq_save(*flags);
> +  arch_spin_lock(s);
> +}
> +
> +static inline void
> +_futex_spin_unlock_irqrestore (u32 __user *uaddr, unsigned long int
> *flags)
> +{
> +  extern u32 lws_lock_start[];
> +  long index = ((long)uaddr & 0xf0) >> 2;
> +  arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
> +  arch_spin_unlock(s);
> +  local_irq_restore(*flags);
> +}
> +
>  static inline int
>  futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
>  {

This needs tabs.

Greetings,

Eike
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] parisc: futex: Use same lock set as lws calls
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On 10-Oct-11, at 10:30 AM, Rolf Eike Beer wrote:

> This needs tabs.

Sorry, linux style isn't what I normally use.  Change has been updated  
with tabs.

Signed-off-by:  John David Anglin  <dave.anglin@bell.net>


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diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 2388bdb..7839285 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -8,6 +8,29 @@
 #include <asm/atomic.h>
 #include <asm/errno.h>
 
+/* The following has to match the LWS code in syscall.S.  We have
+   sixteen four-word locks. */
+
+static inline void
+_futex_spin_lock_irqsave (u32 __user *uaddr, unsigned long int *flags)
+{
+	extern u32 lws_lock_start[];
+	long index = ((long)uaddr & 0xf0) >> 2;
+	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
+	local_irq_save(*flags);
+	arch_spin_lock(s);
+}
+
+static inline void
+_futex_spin_unlock_irqrestore (u32 __user *uaddr, unsigned long int *flags)
+{
+	extern u32 lws_lock_start[];
+	long index = ((long)uaddr & 0xf0) >> 2;
+	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
+	arch_spin_unlock(s);
+	local_irq_restore(*flags);
+}
+
 static inline int
 futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 {
@@ -26,7 +49,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_disable();
 
-	_atomic_spin_lock_irqsave(uaddr, flags);
+	_futex_spin_lock_irqsave(uaddr, &flags);
 
 	switch (op) {
 	case FUTEX_OP_SET:
@@ -71,7 +94,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 		ret = -ENOSYS;
 	}
 
-	_atomic_spin_unlock_irqrestore(uaddr, flags);
+	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
 	pagefault_enable();
 
@@ -113,7 +136,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	 * address. This should scale to a couple of CPUs.
 	 */
 
-	_atomic_spin_lock_irqsave(uaddr, flags);
+	_futex_spin_lock_irqsave(uaddr, &flags);
 
 	ret = get_user(val, uaddr);
 
@@ -122,7 +145,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 
 	*uval = val;
 
-	_atomic_spin_unlock_irqrestore(uaddr, flags);
+	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
 	return ret;
 }

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Dave
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From - Thu Nov 08 21:07:36 2018
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Subject: Re: [PATCH] parisc: futex: Use same lock set as lws calls
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On Mon, 2011-10-10 at 16:27 -0400, John David Anglin wrote:
> On 10-Oct-11, at 10:30 AM, Rolf Eike Beer wrote:
> 
> > This needs tabs.
> 
> Sorry, linux style isn't what I normally use.  Change has been updated  
> with tabs.

Don't worry.  I tend to fix all of this stuff up on import, which I did
this morning when I started it in my testing environment.

James


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From: Grant Grundler <grundler@parisc-linux.org>
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On Tue, Sep 27, 2011 at 09:32:37AM +0200, Rolf Eike Beer wrote:
> I'm running the CMake tests every night. This is the second time in a row
> that my C3600 did not survive this. Since I was warned I connected a
> serial console.
...

> But then the machine got killed:
> 
> Backtrace:
>  [<1030b9ec>] tulip_get_stats+0x34/0x5c
>  [<1038ac20>] dev_get_stats+0x98/0xe8
>  [<102946b4>] led_work_func+0x11c/0x310
>  [<10145204>] process_one_work+0x120/0x3ac
>  [<10147110>] worker_thread+0x174/0x338
>  [<1014b0b4>] kthread+0x9c/0xa4
>  [<10102c5c>] ret_from_kernel_thread+0x1c/0x24
> 
> 
> High Priority Machine Check (HPMC): Code=1 regs=10551080 (Addr=00000000)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001110 Not tainted
> r00-03  0004ff0e 105bf000 1030b9ec 2fc72000
> r04-07  0000000f 00000000 00000000 00000000
> r08-11  2fc72000 105bf600 2fea4208 7f000000
> r12-15  2fea4210 105ba000 10544000 2fc2f408
> r16-19  1041d1dc f000017c f0000174 2fea4210
> r20-23  0099f055 0099f050 1030b9b8 00000000
> r24-27  2ff57008 2fea4210 0004a040 10544000
> r28-31  0004a040 f68e066d 2fea4400 1038ac20
> sr00-03  00000000 00000000 00000000 00000017
> sr04-07  00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 10284394 10284398
>  IIR: 0f80109c    ISR: a627ffd0  IOR: 0204a040
>  CPU:        0   CR30: 2fea4000 CR31: ffffdffe
>  ORIG_R28: 00000000
>  IAOQ[0]: ioread32+0xc/0x4c

Usually the HMPC means tulip tried to read something
from MMIO space that didn't respond and this
resulted in a "Master Abort" (PCI bus controller
had to abort the transaction). On PCs that's not
fatal but is on many RISC architectures.

If you can decode the instruction pointer (ioread32+0x10) to figure out
which register is used to dereference the MMIO address, it would
be obvious what the offending address is - just to confirm the
pointer isn't pointing off into the weeds. It will be one of the
registers that contains a 0xfnnnnnnn address.

Also possible is something before already offended the SBA 
("System Bus Adapter" : has IOMMU and mem controller in it)
by trying to DMA to an unmapped address. SBA is "fatal"
at that point and the next MMIO read causes the CPU to
recognize the fatal state of the SBA. Decoding the HPMC (see
below) can help determine that.


>  IAOQ[1]: ioread32+0x10/0x4c
>  RP(r2): tulip_get_stats+0x34/0x5c
> Backtrace:
>  [<1030b9ec>] tulip_get_stats+0x34/0x5c
>  [<1038ac20>] dev_get_stats+0x98/0xe8
>  [<102946b4>] led_work_func+0x11c/0x310
>  [<10145204>] process_one_work+0x120/0x3ac
>  [<10147110>] worker_thread+0x174/0x338
>  [<1014b0b4>] kthread+0x9c/0xa4
>  [<10102c5c>] ret_from_kernel_thread+0x1c/0x24
> 
> Kernel panic - not syncing: High Priority Machine Check (HPMC)
> Backtrace:
>  [<1010edec>] panic+0x90/0x23c
>  [<101143b8>] parisc_terminate+0xbc/0xd4
>  [<1011458c>] handle_interruption+0x1bc/0x718
>  [<10103078>] intr_check_sig+0x0/0x34
>  [<10284398>] ioread32+0x10/0x4c
>  [<103e8fc0>] bictcp_acked+0x0/0x228
> 
> I'm running 3.0.4 with d7dd2ff11b7fcd425aca5a875983c862d19a67ae reverted.
> 
> Any hints?

Interrupt the boot process and collect the HPMC dump as described:
   http://www.parisc-linux.org/faq/kernelbug-howto.html> 

The output will include the offending address that the ioread32 was
trying to access to confirm the instruction was decoded correctly.
If anyone has access to the magic decoder ring, we might be able to tell more.

cheers,
grant
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From - Thu Nov 08 21:07:37 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
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>> On Tue, Sep 06, 2011 at 09:15:07AM -0500, James Bottomley wrote:
>>> It's possible that one of the flushing patches is to blame; I just
>>> can't
>>> see how.  Most likely is
>>>
>>> commit d7dd2ff11b7fcd425aca5a875983c862d19a67ae
>>> Author: James Bottomley <James.Bottomley@HansenPartnership.com>
>>> Date:   Thu Apr 14 18:25:21 2011 -0500
>>>
>>>     [PARISC] only make executable areas executable
>>>
>>
>> This looks promising, the second commit doesn't touch the flush_*_local,
>> so I think it's probably not a candidate.
>>
>> Rolf, can you revert d7dd2ff11b7fcd425aca5a875983c862d19a67ae and see
>> what happens?
>
> What happens is that the system boots and from a first glance seems to
> work fine.

James, are you going to revert that commit? Or am I the only one that is
seeing this?

Greetings,

Eike
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
 (code 7)
Date: Wed, 12 Oct 2011 08:41:41 -0500
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On Wed, 2011-10-12 at 09:26 +0200, Rolf Eike Beer wrote:
> >> On Tue, Sep 06, 2011 at 09:15:07AM -0500, James Bottomley wrote:
> >>> It's possible that one of the flushing patches is to blame; I just
> >>> can't
> >>> see how.  Most likely is
> >>>
> >>> commit d7dd2ff11b7fcd425aca5a875983c862d19a67ae
> >>> Author: James Bottomley <James.Bottomley@HansenPartnership.com>
> >>> Date:   Thu Apr 14 18:25:21 2011 -0500
> >>>
> >>>     [PARISC] only make executable areas executable
> >>>
> >>
> >> This looks promising, the second commit doesn't touch the flush_*_local,
> >> so I think it's probably not a candidate.
> >>
> >> Rolf, can you revert d7dd2ff11b7fcd425aca5a875983c862d19a67ae and see
> >> what happens?
> >
> > What happens is that the system boots and from a first glance seems to
> > work fine.
> 
> James, are you going to revert that commit? Or am I the only one that is
> seeing this?

You're the only one whose seeing this.  It works 32 bit on my C360, so I
really need to know why and I don't seem to have a means to debug if
it's C3600 only.  If I revert that commit, we start segfaulting again.

James


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From - Thu Nov 08 21:07:37 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
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Subject: Re: HPMC running CMake Nightly tests
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> On Tue, Sep 27, 2011 at 09:32:37AM +0200, Rolf Eike Beer wrote:
>> I'm running the CMake tests every night. This is the second time in a
>> row
>> that my C3600 did not survive this. Since I was warned I connected a
>> serial console.
> ...
>
>> But then the machine got killed:
>>
>> Backtrace:
>>  [<1030b9ec>] tulip_get_stats+0x34/0x5c
>>  [<1038ac20>] dev_get_stats+0x98/0xe8
>>  [<102946b4>] led_work_func+0x11c/0x310
>>  [<10145204>] process_one_work+0x120/0x3ac
>>  [<10147110>] worker_thread+0x174/0x338
>>  [<1014b0b4>] kthread+0x9c/0xa4
>>  [<10102c5c>] ret_from_kernel_thread+0x1c/0x24
>>
>>
>> High Priority Machine Check (HPMC): Code=1 regs=10551080 (Addr=00000000)
>>
>>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>> PSW: 00000000000001001111111100001110 Not tainted
>> r00-03  0004ff0e 105bf000 1030b9ec 2fc72000
>> r04-07  0000000f 00000000 00000000 00000000
>> r08-11  2fc72000 105bf600 2fea4208 7f000000
>> r12-15  2fea4210 105ba000 10544000 2fc2f408
>> r16-19  1041d1dc f000017c f0000174 2fea4210
>> r20-23  0099f055 0099f050 1030b9b8 00000000
>> r24-27  2ff57008 2fea4210 0004a040 10544000
>> r28-31  0004a040 f68e066d 2fea4400 1038ac20
>> sr00-03  00000000 00000000 00000000 00000017
>> sr04-07  00000000 00000000 00000000 00000000
>>
>> IASQ: 00000000 00000000 IAOQ: 10284394 10284398
>>  IIR: 0f80109c    ISR: a627ffd0  IOR: 0204a040
>>  CPU:        0   CR30: 2fea4000 CR31: ffffdffe
>>  ORIG_R28: 00000000
>>  IAOQ[0]: ioread32+0xc/0x4c
>
> Usually the HMPC means tulip tried to read something
> from MMIO space that didn't respond and this
> resulted in a "Master Abort" (PCI bus controller
> had to abort the transaction). On PCs that's not
> fatal but is on many RISC architectures.
>
> If you can decode the instruction pointer (ioread32+0x10) to figure out
> which register is used to dereference the MMIO address, it would
> be obvious what the offending address is - just to confirm the
> pointer isn't pointing off into the weeds. It will be one of the
> registers that contains a 0xfnnnnnnn address.

I will have a look.

> Interrupt the boot process and collect the HPMC dump as described:
>    http://www.parisc-linux.org/faq/kernelbug-howto.html>
>
> The output will include the offending address that the ioread32 was
> trying to access to confirm the instruction was decoded correctly.
> If anyone has access to the magic decoder ring, we might be able to tell
> more.

-----------------  Processor 0 HPMC Information ------------------

Timestamp =
  Fri Oct  14 12:18:23 GMT 2011    (20:11:10:14:12:18:23)

HPMC Chassis Codes = 2cbf0  2500b  2cbfb

General Registers 0 - 31
00-03   0000000000000000  00000000105bf000  000000001030bbd4 
000000002fc26000
04-07   000000000000000f  0000000000000000  0000000000000000 
0000000000000000
08-11   000000002fc26000  00000000105bf600  000000002fc50208 
000000007f000000
12-15   000000002fc50210  00000000105ba000  0000000010544000 
000000002fc2e628
16-19   000000001041d1dc  00000000f000017c  00000000f0000174 
000000002fc50210
20-23   000000000209f184  000000000209f17f  000000001030bba0 
0000000000000000
24-27   000000000000f424  000000002fc50210  000000000004a040 
0000000010544000
28-31   000000000004a040  0000000000000000  000000002fc50400 
000000001038ae40

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
08-11   000000000000006e  0000000000000000  00000000000000c0 
000000000000003d
12-15   0000000000000000  0000000000000000  0000000000102000 
00000000fe000000
16-19   000044dd642070fc  0000000000000000  0000000010284504 
000000000f80109c
20-23   00000000a627ffd0  000000000204a040  000000ff0004fc0e 
0000000080000000
24-27   0000000000594000  000000011df90000  00000000fffff5f7 
00000000fffffdfe
28-31   00000000fffff7f4  00000000fffff7f6  000000002fc50000 
00000000ffffdffe
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000037
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000010284508
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030103b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000fff4008040
System Requestor Address     = 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000 
0000000000000000
04-07   41bf636000000000  41bf636000000000  00000002625a0000 
0000000000000000
08-11   0000000000000000  1059900010544330  0000000000000000 
105fbd602fde70c8
12-15   ffffffffad401040  ffffddb6f5fc38f8  fffffffffdfc38d0 
fffffffff5fc3ad0
16-19   ffffff8effffffff  ffffffcff5fc3ad0  ffffffb3f1dc38c0 
ffffffff21041800
20-23   ffffffffa5401040  fffffffff5fc38d0  0000000000000000 
0000000100000000
24-27   0000000000000000  0000000000090a6e  0000000000000015 
1029358c102c3a38
28-31   ffffffff0000313d  1055f1d010544000  0000000100000228 
2fc302001011a234

'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81041008000000
Available Memory             = 0x0000000020000000
CPU Diagnose Register 2      = 0x0301000000000004
CPU Status Register 0        = 0x2420c20000000000
CPU Status Register 1        = 0x8002000000000000
SADD LOG                     = 0x4b023fd9e8190951
Read Short LOG               = 0xc1af00fff4008040
ERROR_STATUS                 = 0x0000000000100010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0xc1bff0fffed08040
RUN_DATA_LOW                 = 0xc1bff0fffed08040
RUN_CTRL                     = 0x0000021c00001418
RUN_ADDR                     = 0xc1bff0fffed08040
System Responder Path        = 0x00ffffff0a000c00


HPMC PIM Analysis Information:

Timestamp =
  Fri Oct  14 12:18:23 GMT 2011    (20:11:10:14:12:18:23)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

A Data I/O Fetch Timeout occurred while CPU 0 was
requesting information from a device at the path 10/0/12/0 (built-in PCI
device).


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not log
any additional information about the HPMC.

-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000


-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000 
0000000000000000

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000000000
CPU State                    = 0x00000000


I/O Module Error Log Information:

Timestamp =
  Fri Oct  14 12:18:23 GMT 2011    (20:11:10:14:12:18:23)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc2a9   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc009   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    0x00000000   0x4e0cc009   0x00000000fed38048
   5    ----------   0x5e0cc009   ------------------
   6    0x00000000   0x6e0cc009   0x00000000fed3c048
   7    ----------   0x7e0cc009   ------------------

Eike
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Hi John,

On Sun, Oct 09, 2011 at 04:40:10PM -0400, John David Anglin wrote:
> In debugging the failure of the glibc tst-cond18 test on parisc, I realized
> that futexes need to use the same locks the lws calls.  This fixes all the
> pthread 'cond' tests.  Sadly, there are still problems with thread cancellation.

I applied your patch to 3.1-rc9 and tried to build Debian eglibc 2.13-21. It
passed tst-cond18 but is hanging on tst-fork1. Is it where you see the thread
cancellation issue?

Thank you for having looked at it.

Regards,
Domenico
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On Mon, Oct 17, 2011 at 11:23 AM, Domenico Andreoli <cavokz@gmail.com> =
wrote:
> Hi John,
>
> On Sun, Oct 09, 2011 at 04:40:10PM -0400, John David Anglin wrote:
>> In debugging the failure of the glibc tst-cond18 test on parisc, I r=
ealized
>> that futexes need to use the same locks the lws calls. =A0This fixes=
 all the
>> pthread 'cond' tests. =A0Sadly, there are still problems with thread=
 cancellation.
>
> I applied your patch to 3.1-rc9 and tried to build Debian eglibc 2.13=
-21. It
> passed tst-cond18 but is hanging on tst-fork1. Is it where you see th=
e thread
> cancellation issue?
>
> Thank you for having looked at it.

The test-fork1 failure is still unexplained and happens intermittently.

The cancellation issues happen in tst-cancel*.

I believe the cancellation issues are toolchain issues and I need to
look into them.

Cheers,
Carlos.
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From - Thu Nov 08 21:07:37 2018
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On 10/17/2011 11:47 AM, Carlos O'Donell wrote:
> The test-fork1 failure is still unexplained and happens intermittently.

I have built a lot of unstable on my rp3440.  I think this one causes 
failures in the thread
testsuites of perl, python2.7 and glib2.0.  These are characterized by 
tests hanging.

There is another class of failures.  They typically cause my rp3440 to 
crash due
to cache corruption.  The GCC libgomp and libatomic-ops testsuite seem 
to trigger
this one.  As I have mentioned, it's the libgomp "for" tests that
>
> The cancellation issues happen in tst-cancel*.
>
> I believe the cancellation issues are toolchain issues and I need to
> look into them.
Possibly, this is related to the following bug that I found last week 
building mpfr-3.1.0:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50691
A call to __tls_get_addr clobbers first argument of call to mpfr_cache.  
Don't have a
fix at the moment, but there is a simple testcase.

On a different subject, I tried to get udev-172-1 working.  However, 
this breaks bootstrap
due to an invalid argument in a call to inotify_init.  It's somewhat 
timing dependent since
some kernels will boot if they build enough of /dev before udev messes 
up.  In any case,
I believe that Guy Martin posted a patch a year or so ago to correct an 
inconsistency
between the glibc and the kernel for some bit definitions.  I'm thinking 
this may fix the
udev problem.

It appears that this change got lost and didn't make it into the debian 
glibc patch set.
Was a consensus reached on how to fix this inconsistency?

I plan on seeing if I can resolve the GCC mpfr bug, then I want to 
rebuild glibc with
the flag bits fixed.

I also found a GCC ICE compiling udev-172-1 with gcc-4.4.  Gcc-4.5 and 
gcc-4.6 seem
ok.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:07:37 2018
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On 10/17/2011 2:10 PM, John David Anglin wrote:
> On 10/17/2011 11:47 AM, Carlos O'Donell wrote:
>> The test-fork1 failure is still unexplained and happens intermittently.
> 
> I have built a lot of unstable on my rp3440.  I think this one causes failures in the thread
> testsuites of perl, python2.7 and glib2.0.  These are characterized by tests hanging.
> 
> There is another class of failures.  They typically cause my rp3440 to crash due
> to cache corruption.  The GCC libgomp and libatomic-ops testsuite seem to trigger
> this one.  As I have mentioned, it's the libgomp "for" tests that
>>
>> The cancellation issues happen in tst-cancel*.
>>
>> I believe the cancellation issues are toolchain issues and I need to
>> look into them.
> Possibly, this is related to the following bug that I found last week building mpfr-3.1.0:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50691
> A call to __tls_get_addr clobbers first argument of call to mpfr_cache.  Don't have a
> fix at the moment, but there is a simple testcase.
> 
> On a different subject, I tried to get udev-172-1 working.  However, this breaks bootstrap
> due to an invalid argument in a call to inotify_init.  It's somewhat timing dependent since
> some kernels will boot if they build enough of /dev before udev messes up.  In any case,
> I believe that Guy Martin posted a patch a year or so ago to correct an inconsistency
> between the glibc and the kernel for some bit definitions.  I'm thinking this may fix the
> udev problem.

What patch is this? I don't remember it. URL?

> It appears that this change got lost and didn't make it into the debian glibc patch set.
> Was a consensus reached on how to fix this inconsistency?
> 
> I plan on seeing if I can resolve the GCC mpfr bug, then I want to rebuild glibc with
> the flag bits fixed.
> 
> I also found a GCC ICE compiling udev-172-1 with gcc-4.4.  Gcc-4.5 and gcc-4.6 seem
> ok.


Cheers,
Carlos.

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From - Thu Nov 08 21:07:37 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: [PATCH] parisc: futex: Use same lock set as lws calls
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On 10/17/2011 4:55 PM, Carlos O'Donell wrote:
> On 10/17/2011 2:10 PM, John David Anglin wrote:
>> >  On 10/17/2011 11:47 AM, Carlos O'Donell wrote:
>>> >>  The test-fork1 failure is still unexplained and happens intermittently.
>> >  
>> >  I have built a lot of unstable on my rp3440.  I think this one causes failures in the thread
>> >  testsuites of perl, python2.7 and glib2.0.  These are characterized by tests hanging.
>> >  
>> >  There is another class of failures.  They typically cause my rp3440 to crash due
>> >  to cache corruption.  The GCC libgomp and libatomic-ops testsuite seem to trigger
>> >  this one.  As I have mentioned, it's the libgomp "for" tests that
>>> >>
>>> >>  The cancellation issues happen in tst-cancel*.
>>> >>
>>> >>  I believe the cancellation issues are toolchain issues and I need to
>>> >>  look into them.
>> >  Possibly, this is related to the following bug that I found last week building mpfr-3.1.0:
>> >  http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50691
>> >  A call to __tls_get_addr clobbers first argument of call to mpfr_cache.  Don't have a
>> >  fix at the moment, but there is a simple testcase.
>> >  
>> >  On a different subject, I tried to get udev-172-1 working.  However, this breaks bootstrap
>> >  due to an invalid argument in a call to inotify_init.  It's somewhat timing dependent since
>> >  some kernels will boot if they build enough of /dev before udev messes up.  In any case,
>> >  I believe that Guy Martin posted a patch a year or so ago to correct an inconsistency
>> >  between the glibc and the kernel for some bit definitions.  I'm thinking this may fix the
>> >  udev problem.
> What patch is this? I don't remember it. URL?
>
http://www.cygwin.com/ml/libc-ports/2010-08/msg00001.html

Dave

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John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:07:37 2018
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Subject: Re: [PATCH] parisc: futex: Use same lock set as lws calls
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On Mon, Oct 17, 2011 at 05:09:05PM -0400, John David Anglin wrote:
> On 10/17/2011 4:55 PM, Carlos O'Donell wrote:
> >On 10/17/2011 2:10 PM, John David Anglin wrote:
> >>>  On 10/17/2011 11:47 AM, Carlos O'Donell wrote:
> >>>>>  The test-fork1 failure is still unexplained and happens intermittently.
> >>>  >  I have built a lot of unstable on my rp3440.  I think this
> >>one causes failures in the thread
> >>>  testsuites of perl, python2.7 and glib2.0.  These are characterized by tests hanging.
> >>>  >  There is another class of failures.  They typically cause
> >>my rp3440 to crash due
> >>>  to cache corruption.  The GCC libgomp and libatomic-ops testsuite seem to trigger
> >>>  this one.  As I have mentioned, it's the libgomp "for" tests that
> >>>>>
> >>>>>  The cancellation issues happen in tst-cancel*.
> >>>>>
> >>>>>  I believe the cancellation issues are toolchain issues and I need to
> >>>>>  look into them.
> >>>  Possibly, this is related to the following bug that I found last week building mpfr-3.1.0:
> >>>  http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50691
> >>>  A call to __tls_get_addr clobbers first argument of call to mpfr_cache.  Don't have a
> >>>  fix at the moment, but there is a simple testcase.
> >>>  >  On a different subject, I tried to get udev-172-1 working.
> >>However, this breaks bootstrap
> >>>  due to an invalid argument in a call to inotify_init.  It's somewhat timing dependent since
> >>>  some kernels will boot if they build enough of /dev before udev messes up.  In any case,
> >>>  I believe that Guy Martin posted a patch a year or so ago to correct an inconsistency
> >>>  between the glibc and the kernel for some bit definitions.  I'm thinking this may fix the
> >>>  udev problem.
> >What patch is this? I don't remember it. URL?
> >
> http://www.cygwin.com/ml/libc-ports/2010-08/msg00001.html

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=617973

cheers,
Domenico
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From - Thu Nov 08 21:07:37 2018
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On 17-Oct-11, at 5:57 PM, Domenico Andreoli wrote:

> On Mon, Oct 17, 2011 at 05:09:05PM -0400, John David Anglin wrote:
>> On 10/17/2011 4:55 PM, Carlos O'Donell wrote:
>>> On 10/17/2011 2:10 PM, John David Anglin wrote:
>>>>> On 10/17/2011 11:47 AM, Carlos O'Donell wrote:
>>>>>>> The test-fork1 failure is still unexplained and happens  
>>>>>>> intermittently.
>>>>>> I have built a lot of unstable on my rp3440.  I think this
>>>> one causes failures in the thread
>>>>> testsuites of perl, python2.7 and glib2.0.  These are  
>>>>> characterized by tests hanging.
>>>>>> There is another class of failures.  They typically cause
>>>> my rp3440 to crash due
>>>>> to cache corruption.  The GCC libgomp and libatomic-ops  
>>>>> testsuite seem to trigger
>>>>> this one.  As I have mentioned, it's the libgomp "for" tests that
>>>>>>>
>>>>>>> The cancellation issues happen in tst-cancel*.
>>>>>>>
>>>>>>> I believe the cancellation issues are toolchain issues and I  
>>>>>>> need to
>>>>>>> look into them.
>>>>> Possibly, this is related to the following bug that I found last  
>>>>> week building mpfr-3.1.0:
>>>>> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50691
>>>>> A call to __tls_get_addr clobbers first argument of call to  
>>>>> mpfr_cache.  Don't have a
>>>>> fix at the moment, but there is a simple testcase.
>>>>>> On a different subject, I tried to get udev-172-1 working.
>>>> However, this breaks bootstrap
>>>>> due to an invalid argument in a call to inotify_init.  It's  
>>>>> somewhat timing dependent since
>>>>> some kernels will boot if they build enough of /dev before udev  
>>>>> messes up.  In any case,
>>>>> I believe that Guy Martin posted a patch a year or so ago to  
>>>>> correct an inconsistency
>>>>> between the glibc and the kernel for some bit definitions.  I'm  
>>>>> thinking this may fix the
>>>>> udev problem.
>>> What patch is this? I don't remember it. URL?
>>>
>> http://www.cygwin.com/ml/libc-ports/2010-08/msg00001.html
>
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=617973
>
dave@mx3210:~$ dpkg -l libc6
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/ 
Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============- 
============================================
ii  libc6          2.13-10        Embedded GNU C Library: Shared  
libraries

Bug was supposed to be fixed in 2.13-0exp4...

This is the console output:

...
Loading, please wait...
mount: mounting udev on /dev failed: No such device
W: devtmpfs not available, falling back to tmpfs for /dev
udevd[834]: inotify_init failed: Invalid argument
udevd[834]: error initializing inotify
Begin: Loading essential drivers ... SCSI subsystem initialized done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ...
Begin: Running /scripts/local-top ... done.
Begin: Waiting for root file system ... done.
Gave up waiting for root device. Common problems:
  - Boot args (cat /proc/cmdline)
     - Check rootdelay= (did the system wait long enough?)
     - Check root= (did the system wait for the right device?)
  - Missing modules (cat /proc/modules; ls /dev)
chvt: can't open console
ALERT! /dev/sda5 does not exist. Dropping to a shell!

BusyBox v1.18.4 (Debian 1:1.18.4-1) built-in shell (ash)
Enter 'help' for a list of built-in commands.

/bin/sh: can't access tty; job control turned off
(initramfs)

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:07:37 2018
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On Mon, Oct 17, 2011 at 5:09 PM, John David Anglin <dave.anglin@bell.net> wrote:
>> What patch is this? I don't remember it. URL?
>>
> http://www.cygwin.com/ml/libc-ports/2010-08/msg00001.html

Thanks! I'll poke at this tomorrow.

Cheers,
Carlos.
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On Mon, Oct 17, 2011 at 11:01 PM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> On Mon, Oct 17, 2011 at 5:09 PM, John David Anglin <dave.anglin@bell.net> wrote:
>>> What patch is this? I don't remember it. URL?
>>>
>> http://www.cygwin.com/ml/libc-ports/2010-08/msg00001.html
>
> Thanks! I'll poke at this tomorrow.

I remember what happened here. I championed the idea that this patch
should be generic for all targets, or at least for all of ports.

Guy was good enough to give it a shot but Ulrich shot it down.

Unfortunately the patch lost momentum and I never applied the original.

I've just applied this patch and I'll run it through some testing.

Guy,

Did you eventually get a version that helped just libc-ports avoid
these issues of header duplication?

Cheers,
Carlos.
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On Tue, Oct 18, 2011 at 12:28 AM, John David Anglin <dave.anglin@bell.net>wrote:

>
> On 17-Oct-11, at 5:57 PM, Domenico Andreoli wrote:
>
>  On Mon, Oct 17, 2011 at 05:09:05PM -0400, John David Anglin wrote:
>>
>>> On 10/17/2011 4:55 PM, Carlos O'Donell wrote:
>>>
>>>> On 10/17/2011 2:10 PM, John David Anglin wrote:
>>>>
>>>>> On 10/17/2011 11:47 AM, Carlos O'Donell wrote:
>>>>>>
>>>>>>> The test-fork1 failure is still unexplained and happens
>>>>>>>> intermittently.
>>>>>>>>
>>>>>>> I have built a lot of unstable on my rp3440.  I think this
>>>>>>>
>>>>>> one causes failures in the thread
>>>>>
>>>>>> testsuites of perl, python2.7 and glib2.0.  These are characterized by
>>>>>> tests hanging.
>>>>>>
>>>>>>> There is another class of failures.  They typically cause
>>>>>>>
>>>>>> my rp3440 to crash due
>>>>>
>>>>>> to cache corruption.  The GCC libgomp and libatomic-ops testsuite seem
>>>>>> to trigger
>>>>>> this one.  As I have mentioned, it's the libgomp "for" tests that
>>>>>>
>>>>>>>
>>>>>>>> The cancellation issues happen in tst-cancel*.
>>>>>>>>
>>>>>>>> I believe the cancellation issues are toolchain issues and I need to
>>>>>>>> look into them.
>>>>>>>>
>>>>>>> Possibly, this is related to the following bug that I found last week
>>>>>> building mpfr-3.1.0:
>>>>>> http://gcc.gnu.org/bugzilla/**show_bug.cgi?id=50691<http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50691>
>>>>>> A call to __tls_get_addr clobbers first argument of call to
>>>>>> mpfr_cache.  Don't have a
>>>>>> fix at the moment, but there is a simple testcase.
>>>>>>
>>>>>>> On a different subject, I tried to get udev-172-1 working.
>>>>>>>
>>>>>> However, this breaks bootstrap
>>>>>
>>>>>> due to an invalid argument in a call to inotify_init.  It's somewhat
>>>>>> timing dependent since
>>>>>> some kernels will boot if they build enough of /dev before udev messes
>>>>>> up.  In any case,
>>>>>> I believe that Guy Martin posted a patch a year or so ago to correct
>>>>>> an inconsistency
>>>>>> between the glibc and the kernel for some bit definitions.  I'm
>>>>>> thinking this may fix the
>>>>>> udev problem.
>>>>>>
>>>>> What patch is this? I don't remember it. URL?
>>>>
>>>>  http://www.cygwin.com/ml/libc-**ports/2010-08/msg00001.html<http://www.cygwin.com/ml/libc-ports/2010-08/msg00001.html>
>>>
>>
>> http://bugs.debian.org/cgi-**bin/bugreport.cgi?bug=617973<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=617973>
>>
>>  dave@mx3210:~$ dpkg -l libc6
> Desired=Unknown/Install/**Remove/Purge/Hold
> | Status=Not/Inst/Conf-files/**Unpacked/halF-conf/Half-inst/**
> trig-aWait/Trig-pend
> |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
> ||/ Name           Version        Description
> +++-==============-===========**===-==========================**
> ==================
> ii  libc6          2.13-10        Embedded GNU C Library: Shared libraries
>
> Bug was supposed to be fixed in 2.13-0exp4...
>
> This is the console output:
>
> ...
> Loading, please wait...
> mount: mounting udev on /dev failed: No such device
> W: devtmpfs not available, falling back to tmpfs for /dev
> udevd[834]: inotify_init failed: Invalid argument
> udevd[834]: error initializing inotify
> Begin: Loading essential drivers ... SCSI subsystem initialized done.
> Begin: Running /scripts/init-premount ... done.
> Begin: Mounting root file system ...
> Begin: Running /scripts/local-top ... done.
> Begin: Waiting for root file system ... done.
> Gave up waiting for root device. Common problems:
>  - Boot args (cat /proc/cmdline)
>    - Check rootdelay= (did the system wait long enough?)
>    - Check root= (did the system wait for the right device?)
>  - Missing modules (cat /proc/modules; ls /dev)
> chvt: can't open console
> ALERT! /dev/sda5 does not exist. Dropping to a shell!
>
> BusyBox v1.18.4 (Debian 1:1.18.4-1) built-in shell (ash)
> Enter 'help' for a list of built-in commands.
>
> /bin/sh: can't access tty; job control turned off
> (initramfs)
>

Unfortunately I've never been able to build eglibc with the supposed fix,
indeed I'm running an hacked udev on libc 2.11.something.

BTW, how did you successfully build it? you said you build a good part of
unstable, I would like to do the same and maybe upload some key packages...

Regards,
Domenico

--bcaec520e81750d82b04af8f6387
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<div class=3D"gmail_quote">On Tue, Oct 18, 2011 at 12:28 AM, John David Ang=
lin <span dir=3D"ltr">&lt;<a href=3D"mailto:dave.anglin@bell.net">dave.angl=
in@bell.net</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" styl=
e=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div><div></div><div class=3D"h5"><br>
On 17-Oct-11, at 5:57 PM, Domenico Andreoli wrote:<br>
<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
On Mon, Oct 17, 2011 at 05:09:05PM -0400, John David Anglin wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
On 10/17/2011 4:55 PM, Carlos O&#39;Donell wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
On 10/17/2011 2:10 PM, John David Anglin wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><blockquote class=3D"gmail_quote" style=3D"m=
argin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On 10/17/2011 11:47 AM, Carlos O&#39;Donell wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><blockquote class=3D"gmail_quote" style=3D"m=
argin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
The test-fork1 failure is still unexplained and happens intermittently.<br>
</blockquote>
I have built a lot of unstable on my rp3440. =A0I think this<br>
</blockquote></blockquote>
one causes failures in the thread<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
testsuites of perl, python2.7 and glib2.0. =A0These are characterized by te=
sts hanging.<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
There is another class of failures. =A0They typically cause<br>
</blockquote></blockquote>
my rp3440 to crash due<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
to cache corruption. =A0The GCC libgomp and libatomic-ops testsuite seem to=
 trigger<br>
this one. =A0As I have mentioned, it&#39;s the libgomp &quot;for&quot; test=
s that<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><blockquote class=3D"gmail_quote" style=3D"m=
argin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
The cancellation issues happen in tst-cancel*.<br>
<br>
I believe the cancellation issues are toolchain issues and I need to<br>
look into them.<br>
</blockquote></blockquote>
Possibly, this is related to the following bug that I found last week build=
ing mpfr-3.1.0:<br>
<a href=3D"http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D50691" target=3D"_=
blank">http://gcc.gnu.org/bugzilla/<u></u>show_bug.cgi?id=3D50691</a><br>
A call to __tls_get_addr clobbers first argument of call to mpfr_cache. =A0=
Don&#39;t have a<br>
fix at the moment, but there is a simple testcase.<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
On a different subject, I tried to get udev-172-1 working.<br>
</blockquote></blockquote>
However, this breaks bootstrap<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
due to an invalid argument in a call to inotify_init. =A0It&#39;s somewhat =
timing dependent since<br>
some kernels will boot if they build enough of /dev before udev messes up. =
=A0In any case,<br>
I believe that Guy Martin posted a patch a year or so ago to correct an inc=
onsistency<br>
between the glibc and the kernel for some bit definitions. =A0I&#39;m think=
ing this may fix the<br>
udev problem.<br>
</blockquote></blockquote>
What patch is this? I don&#39;t remember it. URL?<br>
<br>
</blockquote>
<a href=3D"http://www.cygwin.com/ml/libc-ports/2010-08/msg00001.html" targe=
t=3D"_blank">http://www.cygwin.com/ml/libc-<u></u>ports/2010-08/msg00001.ht=
ml</a><br>
</blockquote>
<br>
<a href=3D"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D617973" targe=
t=3D"_blank">http://bugs.debian.org/cgi-<u></u>bin/bugreport.cgi?bug=3D6179=
73</a><br>
<br>
</blockquote></div></div>
dave@mx3210:~$ dpkg -l libc6<br>
Desired=3DUnknown/Install/<u></u>Remove/Purge/Hold<br>
| Status=3DNot/Inst/Conf-files/<u></u>Unpacked/halF-conf/Half-inst/<u></u>t=
rig-aWait/Trig-pend<br>
|/ Err?=3D(none)/Reinst-required (Status,Err: uppercase=3Dbad)<br>
||/ Name =A0 =A0 =A0 =A0 =A0 Version =A0 =A0 =A0 =A0Description<br>
+++-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D<u></u>=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D<u></u>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D<br>
ii =A0libc6 =A0 =A0 =A0 =A0 =A02.13-10 =A0 =A0 =A0 =A0Embedded GNU C Librar=
y: Shared libraries<br>
<br>
Bug was supposed to be fixed in 2.13-0exp4...<br>
<br>
This is the console output:<br>
<br>
...<br>
Loading, please wait...<br>
mount: mounting udev on /dev failed: No such device<br>
W: devtmpfs not available, falling back to tmpfs for /dev<br>
udevd[834]: inotify_init failed: Invalid argument<br>
udevd[834]: error initializing inotify<br>
Begin: Loading essential drivers ... SCSI subsystem initialized done.<br>
Begin: Running /scripts/init-premount ... done.<br>
Begin: Mounting root file system ...<br>
Begin: Running /scripts/local-top ... done.<br>
Begin: Waiting for root file system ... done.<br>
Gave up waiting for root device. Common problems:<br>
=A0- Boot args (cat /proc/cmdline)<br>
 =A0 =A0- Check rootdelay=3D (did the system wait long enough?)<br>
 =A0 =A0- Check root=3D (did the system wait for the right device?)<br>
=A0- Missing modules (cat /proc/modules; ls /dev)<br>
chvt: can&#39;t open console<br>
ALERT! /dev/sda5 does not exist. Dropping to a shell!<br>
<br>
BusyBox v1.18.4 (Debian 1:1.18.4-1) built-in shell (ash)<br>
Enter &#39;help&#39; for a list of built-in commands.<br>
<br>
/bin/sh: can&#39;t access tty; job control turned off<br>
(initramfs)<br></blockquote><div><br>Unfortunately I&#39;ve never been able=
 to build eglibc with the supposed fix, indeed I&#39;m running an hacked ud=
ev on libc 2.11.something. <br><br>BTW, how did you successfully build it? =
you said you build a good part of unstable, I would like to do the same and=
 maybe upload some key packages... <br>
<br>Regards,<br>Domenico<br></div></div><br>

--bcaec520e81750d82b04af8f6387--



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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
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On Tue, Oct 18, 2011 at 12:28 AM, John David Anglin
<dave.anglin@bell.net> wrote:
>
> On 17-Oct-11, at 5:57 PM, Domenico Andreoli wrote:
>
>> On Mon, Oct 17, 2011 at 05:09:05PM -0400, John David Anglin wrote:
>>>
>>> On 10/17/2011 4:55 PM, Carlos O'Donell wrote:
>>>>
>>>> On 10/17/2011 2:10 PM, John David Anglin wrote:
>>>>>>
>>>>>> On 10/17/2011 11:47 AM, Carlos O'Donell wrote:
>>>>>>>>
>>>>>>>> The test-fork1 failure is still unexplained and happens interm=
ittently.
>>>>>>>
>>>>>>> I have built a lot of unstable on my rp3440. =A0I think this
>>>>>
>>>>> one causes failures in the thread
>>>>>>
>>>>>> testsuites of perl, python2.7 and glib2.0. =A0These are characte=
rized by tests hanging.
>>>>>>>
>>>>>>> There is another class of failures. =A0They typically cause
>>>>>
>>>>> my rp3440 to crash due
>>>>>>
>>>>>> to cache corruption. =A0The GCC libgomp and libatomic-ops testsu=
ite seem to trigger
>>>>>> this one. =A0As I have mentioned, it's the libgomp "for" tests t=
hat
>>>>>>>>
>>>>>>>> The cancellation issues happen in tst-cancel*.
>>>>>>>>
>>>>>>>> I believe the cancellation issues are toolchain issues and I n=
eed to
>>>>>>>> look into them.
>>>>>>
>>>>>> Possibly, this is related to the following bug that I found last=
 week building mpfr-3.1.0:
>>>>>> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D50691
>>>>>> A call to __tls_get_addr clobbers first argument of call to mpfr=
_cache. =A0Don't have a
>>>>>> fix at the moment, but there is a simple testcase.
>>>>>>>
>>>>>>> On a different subject, I tried to get udev-172-1 working.
>>>>>
>>>>> However, this breaks bootstrap
>>>>>>
>>>>>> due to an invalid argument in a call to inotify_init. =A0It's so=
mewhat timing dependent since
>>>>>> some kernels will boot if they build enough of /dev before udev =
messes up. =A0In any case,
>>>>>> I believe that Guy Martin posted a patch a year or so ago to cor=
rect an inconsistency
>>>>>> between the glibc and the kernel for some bit definitions. =A0I'=
m thinking this may fix the
>>>>>> udev problem.
>>>>
>>>> What patch is this? I don't remember it. URL?
>>>>
>>> http://www.cygwin.com/ml/libc-ports/2010-08/msg00001.html
>>
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D617973
>>
> dave@mx3210:~$ dpkg -l libc6
> Desired=3DUnknown/Install/Remove/Purge/Hold
> | Status=3DNot/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWai=
t/Trig-pend
> |/ Err?=3D(none)/Reinst-required (Status,Err: uppercase=3Dbad)
> ||/ Name =A0 =A0 =A0 =A0 =A0 Version =A0 =A0 =A0 =A0Description
> +++-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D
> ii =A0libc6 =A0 =A0 =A0 =A0 =A02.13-10 =A0 =A0 =A0 =A0Embedded GNU C =
Library: Shared libraries
>
> Bug was supposed to be fixed in 2.13-0exp4...
>
> This is the console output:
>
> ...
> Loading, please wait...
> mount: mounting udev on /dev failed: No such device
> W: devtmpfs not available, falling back to tmpfs for /dev
> udevd[834]: inotify_init failed: Invalid argument
> udevd[834]: error initializing inotify
> Begin: Loading essential drivers ... SCSI subsystem initialized done.
> Begin: Running /scripts/init-premount ... done.
> Begin: Mounting root file system ...
> Begin: Running /scripts/local-top ... done.
> Begin: Waiting for root file system ... done.
> Gave up waiting for root device. Common problems:
> =A0- Boot args (cat /proc/cmdline)
> =A0 =A0- Check rootdelay=3D (did the system wait long enough?)
> =A0 =A0- Check root=3D (did the system wait for the right device?)
> =A0- Missing modules (cat /proc/modules; ls /dev)
> chvt: can't open console
> ALERT! /dev/sda5 does not exist. Dropping to a shell!
>
> BusyBox v1.18.4 (Debian 1:1.18.4-1) built-in shell (ash)
> Enter 'help' for a list of built-in commands.
>
> /bin/sh: can't access tty; job control turned off
> (initramfs)

Unfortunately I've never been able to build eglibc with the supposed
fix, indeed I'm running an hacked udev on libc 2.11.something.

BTW, how did you successfully build it? you said you build a good part
of unstable, I would like to do the same and maybe upload some key
packages...

Regards,
Domenico
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Subject: Re: [PATCH] parisc: futex: Use same lock set as lws calls
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To: Domenico Andreoli <cavok@debian.org>
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On 10/18/2011 5:33 AM, Domenico Andreoli wrote:
> Unfortunately I've never been able to build eglibc with the supposed
> fix, indeed I'm running an hacked udev on libc 2.11.something.
>
> BTW, how did you successfully build it? you said you build a good part
> of unstable, I would like to do the same and maybe upload some key
> packages...
>
The dependency issues have been somewhat tricky.  I recall that I did my 
initial
2.13 build with my own tool chain builds (binutils and gcc).  I wanted 
to ensure that
I had the binutils fix for non equivalent aliases.  There were also some 
compiler
fixes that I wanted.

Carlos sent me his current glibc patch set and I integrated them into 
the 2.13-10
patches.  I could send you my current two patches tonight.  Carlos also 
has these
updates.  This wasn't completely straight forward as there were some 
conflicts
with the existing patch set.  The main goal was to fix a bug in thread stack
allocation (tst-timer1?).

I used 2.13-10 as my starting source for applying Carlos' changes.  I 
had built
2.13-13 previously, but I removed the source.  I had tried building and 
installing
2.13-14.  However, it wouldn't install without breaking my installed 
version of perl.
So, I had to go back to 2.13-10.

Once I had the glibc multiarch support installed, then I built the 
latest unstable
versions of binutils, gcc-4.4, gnat-4.4, gcj-4.4, gcc-4.5, gcc-4.6, 
etc.  I'm still using
gcc-4.4 as my default.

Next, I had to update perl and python.  This involved updating a bunch 
of libraries.
There was more than one dependency loop where I had to force 
installation of a
library because I needed it to build the library that the installation 
depended on.

Part of the problem is I was starting from a system updated to 
testing/unstable.
Many of the "-dev" packages for libraries had disappeared as newer versions
were built and uploaded to the servers.  I couldn't really go back 
without breaking
a huge amount of stuff.

So, I just plunged forward.  It's not really possible to support GCC 
without having
the new stuff in unstable.

I have kept all my .deb files and can provide them if needed.

I had hoped that we would get a buildd going by now.  If we wait much 
longer,
the dependencies will be a killer.

Based on my experience, a fair number of packages need some manual
intervention to get them to build.  For example, with glibc, it probably 
is necessary
to disable testsuite checking.  With perl and python, it may be 
necessary to manually
kill tests that  hang, etc.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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On Wed, 2011-10-12 at 08:41 -0500, James Bottomley wrote:
> On Wed, 2011-10-12 at 09:26 +0200, Rolf Eike Beer wrote:
> > >> On Tue, Sep 06, 2011 at 09:15:07AM -0500, James Bottomley wrote:
> > >>> It's possible that one of the flushing patches is to blame; I just
> > >>> can't
> > >>> see how.  Most likely is
> > >>>
> > >>> commit d7dd2ff11b7fcd425aca5a875983c862d19a67ae
> > >>> Author: James Bottomley <James.Bottomley@HansenPartnership.com>
> > >>> Date:   Thu Apr 14 18:25:21 2011 -0500
> > >>>
> > >>>     [PARISC] only make executable areas executable
> > >>>
> > >>
> > >> This looks promising, the second commit doesn't touch the flush_*_local,
> > >> so I think it's probably not a candidate.
> > >>
> > >> Rolf, can you revert d7dd2ff11b7fcd425aca5a875983c862d19a67ae and see
> > >> what happens?
> > >
> > > What happens is that the system boots and from a first glance seems to
> > > work fine.
> > 
> > James, are you going to revert that commit? Or am I the only one that is
> > seeing this?
> 
> You're the only one whose seeing this.  It works 32 bit on my C360, so I
> really need to know why and I don't seem to have a means to debug if
> it's C3600 only.  If I revert that commit, we start segfaulting again.

Just an update on this, I finally got my J6000 memory problems sorted
out and booted it with 3.1-rc9 32 bit, and it works fine too (SMP as
well).  That's the closest thing I have to a C3600 because it's
Astro/Elroy based, so I've no means at all of reproducing this.

James


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To: John David Anglin <dave.anglin@bell.net>
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On Mon, Oct 17, 2011 at 11:21 PM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> On Mon, Oct 17, 2011 at 11:01 PM, Carlos O'Donell
> <carlos@systemhalted.org> wrote:
>> On Mon, Oct 17, 2011 at 5:09 PM, John David Anglin <dave.anglin@bell.net> wrote:
>>>> What patch is this? I don't remember it. URL?
>>>>
>>> http://www.cygwin.com/ml/libc-ports/2010-08/msg00001.html
>>
>> Thanks! I'll poke at this tomorrow.
> I've just applied this patch and I'll run it through some testing.

I've verified it matches what we have in the kernel.

I've verified that a make install-headers puts the right headers in
the right locations.

If some final testing looks good I'll commit these patches for hppa in
libc-ports with an an additional Tested-By: for my testing.

Cheers,
Carlos.
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On 17-Oct-11, at 2:10 PM, John David Anglin wrote:

>>
>> The cancellation issues happen in tst-cancel*.
>>
>> I believe the cancellation issues are toolchain issues and I need to
>> look into them.
> Possibly, this is related to the following bug that I found last  
> week building mpfr-3.1.0:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50691
> A call to __tls_get_addr clobbers first argument of call to  
> mpfr_cache.  Don't have a
> fix at the moment, but there is a simple testcase.

I looked at this a bit.  The problem is legitimize_tls_address doesn't  
work properly.
First, GCC doesn't know that the libcall needs r26 and ret0 when the  
__thread variable
is an argument to a call.  Secondly, the implementation of  
__tls_get_addr clobbers
some other call clobbered registers.  I'm thinking the glibc  
implementation might need to
be in assembly language so that the clobbered registers are limited  
(i.e., it needs to
save registers).   This all seems really ugly...

The issues occur in generating PIC code.

Thoughts?

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:07:38 2018
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On Mon, Oct 17, 2011 at 5:09 PM, John David Anglin <dave.anglin@bell.net> wrote:
>> What patch is this? I don't remember it. URL?
>>
> http://www.cygwin.com/ml/libc-ports/2010-08/msg00001.html

This patch is now checked into glibc-ports.

Cheers,
Carlos.
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From - Thu Nov 08 21:07:38 2018
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On Thu, Oct 20, 2011 at 11:35 AM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> On Mon, Oct 17, 2011 at 5:09 PM, John David Anglin <dave.anglin@bell.net> wrote:
>>> What patch is this? I don't remember it. URL?
>>>
>> http://www.cygwin.com/ml/libc-ports/2010-08/msg00001.html
>
> This patch is now checked into glibc-ports.

The authorship is wrong, I think. Guy wrote the patch, didn't he?
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On 10/20/2011 1:57 PM, Matt Turner wrote:
> On Thu, Oct 20, 2011 at 11:35 AM, Carlos O'Donell
> <carlos@systemhalted.org> wrote:
>> On Mon, Oct 17, 2011 at 5:09 PM, John David Anglin <dave.anglin@bell.net> wrote:
>>>> What patch is this? I don't remember it. URL?
>>>>
>>> http://www.cygwin.com/ml/libc-ports/2010-08/msg00001.html
>>
>> This patch is now checked into glibc-ports.
> 
> The authorship is wrong, I think. Guy wrote the patch, didn't he?

Correct, I forgot to use --author, but Guy is credited in the ChangeLog.

Can I change this retroactively or is it too late?

Cheers,
Carlos.
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From - Thu Nov 08 21:07:38 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: [PATCH] parisc: futex: Use same lock set as lws calls
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On Thu, Oct 20, 2011 at 2:11 PM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> On 10/20/2011 1:57 PM, Matt Turner wrote:
>> On Thu, Oct 20, 2011 at 11:35 AM, Carlos O'Donell
>> <carlos@systemhalted.org> wrote:
>>> On Mon, Oct 17, 2011 at 5:09 PM, John David Anglin <dave.anglin@bell.net> wrote:
>>>>> What patch is this? I don't remember it. URL?
>>>>>
>>>> http://www.cygwin.com/ml/libc-ports/2010-08/msg00001.html
>>>
>>> This patch is now checked into glibc-ports.
>>
>> The authorship is wrong, I think. Guy wrote the patch, didn't he?
>
> Correct, I forgot to use --author, but Guy is credited in the ChangeLog.
>
> Can I change this retroactively or is it too late?
>
> Cheers,
> Carlos.

Once it's pushed to a public git repo it's too late.

This also happened last year,
http://www.cygwin.com/ml/libc-ports/2010-02/msg00014.html

Most people use `git am` which fills in the author field directly.
Otherwise, use git commit --author=... or after the patch it committed
but before it's pushed publicly, git commit --amend --author=...

Matt
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From - Thu Nov 08 21:07:38 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.gentoo.hppa
Subject: Removing HPPA Linuxthreads support in glibc-ports.
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I plan to remove all HPPA Linuxthreads support from glibc-ports.

The support is well past bit-rotten.

Is anyone opposed to this?

Cheers,
Carlos O'Donell.
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From - Thu Nov 08 21:07:38 2018
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On Thursday 20 October 2011 14:55:46 Carlos O'Donell wrote:
> I plan to remove all HPPA Linuxthreads support from glibc-ports.
>=20
> The support is well past bit-rotten.
>=20
> Is anyone opposed to this?

guess we don't have much choice since it's been purged from the core.  but=
=20
nptl support isn't mainlined yet right ? :/
=2Dmike

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From - Thu Nov 08 21:07:38 2018
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From: Carlos O'Donell <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa,gmane.linux.gentoo.hppa
Subject: Re: Removing HPPA Linuxthreads support in glibc-ports.
Date: Thu, 20 Oct 2011 16:35:22 -0400
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On 10/20/2011 4:31 PM, Mike Frysinger wrote:

> On Thursday 20 October 2011 14:55:46 Carlos O'Donell wrote:

>> I plan to remove all HPPA Linuxthreads support from glibc-ports.

>>

>> The support is well past bit-rotten.

>>

>> Is anyone opposed to this?

> 

> guess we don't have much choice since it's been purged from the core.  but 

> nptl support isn't mainlined yet right ? :/



I'm pushing those patches out ASAP.



The patches have been around forever though and we've ironed out a lot of kinks.



Cheers,

Carlos.



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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
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Subject: Re: HPMC running CMake Nightly tests
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>> On Tue, Sep 27, 2011 at 09:32:37AM +0200, Rolf Eike Beer wrote:
>>> I'm running the CMake tests every night. This is the second time in a
>>> row
>>> that my C3600 did not survive this. Since I was warned I connected a
>>> serial console.
>> ...
>>
>>> But then the machine got killed:
>>>
>>> Backtrace:
>>>  [<1030b9ec>] tulip_get_stats+0x34/0x5c
>>>  [<1038ac20>] dev_get_stats+0x98/0xe8
>>>  [<102946b4>] led_work_func+0x11c/0x310
>>>  [<10145204>] process_one_work+0x120/0x3ac
>>>  [<10147110>] worker_thread+0x174/0x338
>>>  [<1014b0b4>] kthread+0x9c/0xa4
>>>  [<10102c5c>] ret_from_kernel_thread+0x1c/0x24
>>>
>>>
>>> High Priority Machine Check (HPMC): Code=1 regs=10551080
>>> (Addr=00000000)
>>>
>>>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>> PSW: 00000000000001001111111100001110 Not tainted
>>> r00-03  0004ff0e 105bf000 1030b9ec 2fc72000
>>> r04-07  0000000f 00000000 00000000 00000000
>>> r08-11  2fc72000 105bf600 2fea4208 7f000000
>>> r12-15  2fea4210 105ba000 10544000 2fc2f408
>>> r16-19  1041d1dc f000017c f0000174 2fea4210
>>> r20-23  0099f055 0099f050 1030b9b8 00000000
>>> r24-27  2ff57008 2fea4210 0004a040 10544000
>>> r28-31  0004a040 f68e066d 2fea4400 1038ac20
>>> sr00-03  00000000 00000000 00000000 00000017
>>> sr04-07  00000000 00000000 00000000 00000000
>>>
>>> IASQ: 00000000 00000000 IAOQ: 10284394 10284398
>>>  IIR: 0f80109c    ISR: a627ffd0  IOR: 0204a040
>>>  CPU:        0   CR30: 2fea4000 CR31: ffffdffe
>>>  ORIG_R28: 00000000
>>>  IAOQ[0]: ioread32+0xc/0x4c
>>
>> Usually the HMPC means tulip tried to read something
>> from MMIO space that didn't respond and this
>> resulted in a "Master Abort" (PCI bus controller
>> had to abort the transaction). On PCs that's not
>> fatal but is on many RISC architectures.
>>
>> If you can decode the instruction pointer (ioread32+0x10) to figure out
>> which register is used to dereference the MMIO address, it would
>> be obvious what the offending address is - just to confirm the
>> pointer isn't pointing off into the weeds. It will be one of the
>> registers that contains a 0xfnnnnnnn address.
>
> I will have a look.
>
>> Interrupt the boot process and collect the HPMC dump as described:
>>    http://www.parisc-linux.org/faq/kernelbug-howto.html>
>>
>> The output will include the offending address that the ioread32 was
>> trying to access to confirm the instruction was decoded correctly.
>> If anyone has access to the magic decoder ring, we might be able to tell
>> more.

Ok, I have another one. I removed all those parts that did not show any
errors or where the register contents were all zeros.

Timestamp =
  Thu Oct  20 09:05:52 GMT 2011    (20:11:10:20:09:05:52)

HPMC Chassis Codes = 2cbf0  2500b  2cbfb

General Registers 0 - 31
00-03   0000000000000000  00000000105bf000  000000001030bbd4 
000000002fe46000
04-07   000000000000000f  0000000000000000  0000000000000000 
0000000000000008
08-11   000000002fe46000  00000000105bf600  000000002fec8208 
000000007f000000
12-15   000000002fec8210  00000000105ba000  0000000010544000 
000000002fc2f408
16-19   000000001041d1dc  00000000f000017c  00000000f0000174 
000000002fec8210
20-23   000000000108ce00  000000000108cdf3  000000001030bba0 
0000000000000000
24-27   000000000000f424  000000002fec8210  000000000004a040 
0000000010544000
28-31   000000000004a040  0000000000000000  000000002fec8400 
000000001038ae40

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
08-11   000000000000004e  0000000000000000  00000000000000c0 
000000000000003d
12-15   0000000000000000  0000000000000000  0000000000102000 
00000000fe000000
16-19   0000230bfe918584  0000000000000000  0000000010284504 
000000000f80109c
20-23   00000000a627ffd0  000000000204a040  000000ff0006fc0e 
0000000080000000
24-27   0000000000594000  000000011ec4a000  00000000ffffffff 
00000000ffffffff
28-31   00000000ffffffff  00000000ffffffff  000000002fec8000 
00000000ffffffff
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000027
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000010284508
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030103b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000fff4008040
System Requestor Address     = 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000 
0000000000000000
04-07   0000000a00000000  0000000000000000  0000000000000000 
0000000049ba5e35
08-11   0000000000000000  1059900010544330  0000000000000000 
105fbd602fe470c8
12-15   ffffffff00000000  0000000000000000  0000000000000000 
0000000000000000
16-19   95380000ffffffff  8008000000000000  0010000000000000 
9118000000000000
20-23   8108000000000000  8008000000000000  0000000000000000 
0000000100000000
24-27   0000000000000000  0000000000090a6e  0000000000000015 
0000000000000000
28-31   ffffffff0000313c  1055f1d010544000  0000000100000228 
2fc302001011a234

'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81041008000000
Available Memory             = 0x0000000020000000
CPU Diagnose Register 2      = 0x0301000000000004
CPU Status Register 0        = 0x2420c20000000000
CPU Status Register 1        = 0x8002000000000000
SADD LOG                     = 0x4b023fd9e8190951
Read Short LOG               = 0xc1af00fff4008040
ERROR_STATUS                 = 0x0000000000100010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0xc1bff0fffed08040
RUN_DATA_LOW                 = 0xc1bff0fffed08040
RUN_CTRL                     = 0x0000021c00001418
RUN_ADDR                     = 0xc1bff0fffed08040
System Responder Path        = 0x00ffffff0a000c00


HPMC PIM Analysis Information:

Timestamp =
  Thu Oct  20 09:05:52 GMT 2011    (20:11:10:20:09:05:52)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

A Data I/O Fetch Timeout occurred while CPU 0 was
requesting information from a device at the path 10/0/12/0 (built-in PCI
device).


I/O Module Error Log Information:

Timestamp =
  Thu Oct  20 09:05:52 GMT 2011    (20:11:10:20:09:05:52)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc2a9   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc009   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    0x00000000   0x4e0cc009   0x00000000fed38048
   5    ----------   0x5e0cc009   ------------------
   6    0x00000000   0x6e0cc009   0x00000000fed3c048
   7    ----------   0x7e0cc009   ------------------

Eike
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From - Thu Nov 08 21:07:39 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: [PATCH] parisc: futex: Use same lock set as lws calls
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On Wed, Oct 19, 2011 at 9:47 PM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
> I looked at this a bit. =A0The problem is legitimize_tls_address does=
n't work
> properly. First, GCC doesn't know that the libcall needs r26 and ret0=
 when the
> __thread variable is an argument to a call. =A0Secondly, the implemen=
tation of __tls_get_addr
> clobbers some other call clobbered registers. =A0I'm thinking the gli=
bc implementation
> might need to be in assembly language so that the clobbered registers=
 are limited (i.e.,
> it needs to save registers). =A0 This all seems really ugly...
>
> The issues occur in generating PIC code.

Yes, __tls_get_addr is a normal C function and follows normal function
register usage.

Why does __tls_get_addr need to be a special function?

Almost all the targets in glibc-ports have C versions of __tls_get_addr=
=2E

=46or example I notice that on Alpha the call to __tls_get_addr is *not=
*
done via a emit_library_call_value, instead they use some emit_insn,
emit_libcall_block and use_reg.

So it looks like they tamper with the register usage via use_reg
before the call to __tls_get_addr?

Another example is Sparc which also uses a custom sequence and
manipulates the used registers.

I think our legitimize_tls_address needs to be rewritten to match
something like what alpha or sparc has, otherwise we are going to run
into trouble trying to get emit_library_call_value to work correctly.

Cheers,
Carlos.
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: glibc-ports update for hppa.
Date: Fri, 21 Oct 2011 11:57:37 -0400
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To: linux-parisc <linux-parisc@vger.kernel.org>,
	John David Anglin <dave.anglin@bell.net>,
	Debian HPPA Port List <debian-hppa@lists.debian.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:3996 gmane.linux.debian.ports.hppa:6731
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/3996>

Team,

I've pushed out 9 commits for glibc-ports that help bring hppa closer
to building directly from upstream source.

These commits have been a part of the debian patch set for a long time
now and are very stable.

Thank you for your patience.

Cheers,
Carlos.

---------- Forwarded message ----------
=46rom:  <carlos@sourceware.org>
Date: Fri, Oct 21, 2011 at 11:53 AM
Subject: Community source repository for glibc add-on ports branch,
master, updated. glibc-2.14-35-g8cb8321
To: glibc-cvs@sourceware.org


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The branch, master has been updated
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- Log -----------------------------------------------------------------
http://sources.redhat.com/git/gitweb.cgi?p=3Dglibc-ports.git;a=3Dcommit=
diff;h=3D8cb8321faf2edcf36d5061e8fc4c8fec4b23fd39

commit 8cb8321faf2edcf36d5061e8fc4c8fec4b23fd39
Author: Carlos O'Donell <carlos@systemhalted.org>
Date: =A0 Fri Oct 21 10:08:04 2011 -0400

=A0 =A0Update cancellable assembly system call wrappers.

=A0 =A0This patch updates sysdep-cancel.h to include the
=A0 =A0new no-cancel wrapper and provides CFI directives
=A0 =A0for all of the assembly. The CFI directives should
=A0 =A0allow unwinding information to be generated.

=A0 =A0Signed-off-by: Carlos O'Donell <carlos@sytemhalted.org>

diff --git a/ChangeLog.hppa b/ChangeLog.hppa
index b83f4f0..564ca0f 100644
--- a/ChangeLog.hppa
+++ b/ChangeLog.hppa
@@ -1,5 +1,24 @@
=A02011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>

+ =A0 =A0 =A0 * sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h: Upda=
te copyright
+ =A0 =A0 =A0 year.
+ =A0 =A0 =A0 (PSEUDO): Define __*_nocancel version. Add CFI directives=
 to
__*_nocancel
+ =A0 =A0 =A0 and normal version.
+ =A0 =A0 =A0 (PUSHARGS_1): Add CFI directive.
+ =A0 =A0 =A0 (PUSHARGS_2): Likewise.
+ =A0 =A0 =A0 (PUSHARGS_3): Likewise.
+ =A0 =A0 =A0 (PUSHARGS_4): Likewise.
+ =A0 =A0 =A0 (PUSHARGS_5): Likewise.
+ =A0 =A0 =A0 (PUSHARGS_6): Likewise.
+ =A0 =A0 =A0 (POPARGS_1): Likewise.
+ =A0 =A0 =A0 (POPARGS_2): Likewise.
+ =A0 =A0 =A0 (POPARGS_3): Likewise.
+ =A0 =A0 =A0 (POPARGS_4): Likewise.
+ =A0 =A0 =A0 (POPARGS_5): Likewise.
+ =A0 =A0 =A0 (POPARGS_6): Likewise.
+
+2011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>
+
=A0 =A0 =A0 =A0* sysdeps/unix/sysv/linux/hppa/linuxthreads/aio_cancel.c=
: Remove.
=A0 =A0 =A0 =A0* sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/initspi=
n.h: Remove.
=A0 =A0 =A0 =A0* sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/pthread=
types.h: Remove.
diff --git a/sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h
b/sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h
index 6cffa76..d704345 100644
--- a/sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h
+++ b/sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2005, 2011 Free Software Foundation, Inc.
=A0 =A0This file is part of the GNU C Library.

=A0 =A0The GNU C Library is free software; you can redistribute it and/=
or
@@ -61,11 +61,53 @@

=A0# undef PSEUDO
=A0# define PSEUDO(name, syscall_name, args) =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
+ =A0 =A0 =A0 ENTRY (__##syscall_name##_nocancel) =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
+ =A0 =A0 =A0 DOARGS_##args =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 stwm TREG, 64(%sp) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 .cfi_offset TREG, 0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 .cfi_adjust_cfa_offset 64 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 stw %sp, -4(%sp) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 .cfi_offset 30, -4 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 stw %r19, -32(%sp) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 .cfi_offset 19, -32 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 /* Save r19 */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 SAVE_PIC(TREG) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 /* Do syscall, delay loads # */ =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 ble =A00x100(%sr2,%r0) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 ldi SYS_ify (syscall_name), %r20 /* delay */ =A0 =A0ASM_L=
INE_SEP =A0 =A0\
+ =A0 =A0 =A0 ldi NO_ERROR,%r1 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 cmpb,>>=3D,n %r1,%ret0,L(pre_nc_end) =A0 =A0 =A0 =A0 =A0 =
=A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 /* Restore r19 from TREG */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 LOAD_PIC(TREG) /* delay */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 SYSCALL_ERROR_HANDLER =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 /* Use TREG for temp storage */ =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 copy %ret0, TREG /* delay */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 /* OPTIMIZE: Don't reload r19 */ =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 /* do a -1*syscall_ret0 */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 sub %r0, TREG, TREG =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 /* Store into errno location */ =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 stw TREG, 0(%sr0,%ret0) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 /* return -1 as error */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 ldi -1, %ret0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+L(pre_nc_end): =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 /* No need to LOAD_PIC */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 /* Undo frame */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 ldwm -64(%sp),TREG =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 .cfi_adjust_cfa_offset -64 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 /* Restore rp before exit */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 ldw -20(%sp), %rp =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 .cfi_restore 2 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 ret =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 END(__##syscall_name##_nocancel) =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 /**********************************************/ASM_LINE_=
SEP =A0 =A0\
=A0 =A0 =A0 =A0ENTRY (name) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
=A0 =A0 =A0 =A0DOARGS_##args =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
=A0 =A0 =A0 =A0stwm TREG, 64(%sp) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 .cfi_adjust_cfa_offset 64 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
=A0 =A0 =A0 =A0stw %sp, -4(%sp) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 .cfi_offset 30, -4 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
=A0 =A0 =A0 =A0stw %r19, -32(%sp) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 .cfi_offset 19, -32 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
=A0 =A0 =A0 =A0/* Done setting up frame, continue... */ =A0 =A0 =A0 =A0=
ASM_LINE_SEP =A0 =A0\
=A0 =A0 =A0 =A0SINGLE_THREAD_P =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
=A0 =A0 =A0 =A0cmpib,<>,n 0,%ret0,L(pseudo_cancel) =A0 =A0 =A0 =A0 =A0 =
=A0 ASM_LINE_SEP =A0 =A0\
@@ -128,26 +170,40 @@ L(pre_end):
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
=A0 =A0 =A0 =A0/* No need to LOAD_PIC */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
=A0 =A0 =A0 =A0/* Undo frame */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
=A0 =A0 =A0 =A0ldwm -64(%sp),TREG =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 .cfi_adjust_cfa_offset -64 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
=A0 =A0 =A0 =A0/* Restore rp before exit */ =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldw -20(%sp), %rp =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP
+ =A0 =A0 =A0 ldw -20(%sp), %rp =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 .cfi_restore 2 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP

=A0/* Save arguments into our frame */
=A0# define PUSHARGS_0 =A0 =A0/* nothing to do */
-# define PUSHARGS_1 =A0 =A0PUSHARGS_0 stw %r26, -36(%sr0,%sp) =A0 =A0 =
=A0ASM_LINE_SEP
-# define PUSHARGS_2 =A0 =A0PUSHARGS_1 stw %r25, -40(%sr0,%sp) =A0 =A0 =
=A0ASM_LINE_SEP
-# define PUSHARGS_3 =A0 =A0PUSHARGS_2 stw %r24, -44(%sr0,%sp) =A0 =A0 =
=A0ASM_LINE_SEP
-# define PUSHARGS_4 =A0 =A0PUSHARGS_3 stw %r23, -48(%sr0,%sp) =A0 =A0 =
=A0ASM_LINE_SEP
-# define PUSHARGS_5 =A0 =A0PUSHARGS_4 stw %r22, -52(%sr0,%sp) =A0 =A0 =
=A0ASM_LINE_SEP
-# define PUSHARGS_6 =A0 =A0PUSHARGS_5 stw %r21, -56(%sr0,%sp) =A0 =A0 =
=A0ASM_LINE_SEP
+# define PUSHARGS_1 =A0 =A0PUSHARGS_0 stw %r26, -36(%sr0,%sp)
ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 .cfi_offset 26, -36 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP
+# define PUSHARGS_2 =A0 =A0PUSHARGS_1 stw %r25, -40(%sr0,%sp)
ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 .cfi_offset 25, -40 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP
+# define PUSHARGS_3 =A0 =A0PUSHARGS_2 stw %r24, -44(%sr0,%sp)
ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 .cfi_offset 24, -44 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP
+# define PUSHARGS_4 =A0 =A0PUSHARGS_3 stw %r23, -48(%sr0,%sp)
ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 .cfi_offset 23, -48 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP
+# define PUSHARGS_5 =A0 =A0PUSHARGS_4 stw %r22, -52(%sr0,%sp)
ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 .cfi_offset 22, -52 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP
+# define PUSHARGS_6 =A0 =A0PUSHARGS_5 stw %r21, -56(%sr0,%sp)
ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 .cfi_offset 21, -56 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP

=A0/* Bring them back from the stack */
=A0# define POPARGS_0 =A0 =A0 /* nothing to do */
-# define POPARGS_1 =A0 =A0 POPARGS_0 ldw -36(%sr0,%sp), %r26 =A0 =A0 =A0=
 ASM_LINE_SEP
-# define POPARGS_2 =A0 =A0 POPARGS_1 ldw -40(%sr0,%sp), %r25 =A0 =A0 =A0=
 ASM_LINE_SEP
-# define POPARGS_3 =A0 =A0 POPARGS_2 ldw -44(%sr0,%sp), %r24 =A0 =A0 =A0=
 ASM_LINE_SEP
-# define POPARGS_4 =A0 =A0 POPARGS_3 ldw -48(%sr0,%sp), %r23 =A0 =A0 =A0=
 ASM_LINE_SEP
-# define POPARGS_5 =A0 =A0 POPARGS_4 ldw -52(%sr0,%sp), %r22 =A0 =A0 =A0=
 ASM_LINE_SEP
-# define POPARGS_6 =A0 =A0 POPARGS_5 ldw -56(%sr0,%sp), %r21 =A0 =A0 =A0=
 ASM_LINE_SEP
+# define POPARGS_1 =A0 =A0 POPARGS_0 ldw -36(%sr0,%sp), %r26
ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 .cfi_restore 26 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP
+# define POPARGS_2 =A0 =A0 POPARGS_1 ldw -40(%sr0,%sp), %r25
ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 .cfi_restore 25 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP
+# define POPARGS_3 =A0 =A0 POPARGS_2 ldw -44(%sr0,%sp), %r24
ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 .cfi_restore 24 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP
+# define POPARGS_4 =A0 =A0 POPARGS_3 ldw -48(%sr0,%sp), %r23
ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 .cfi_restore 23 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP
+# define POPARGS_5 =A0 =A0 POPARGS_4 ldw -52(%sr0,%sp), %r22
ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 .cfi_restore 22 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP
+# define POPARGS_6 =A0 =A0 POPARGS_5 ldw -56(%sr0,%sp), %r21
ASM_LINE_SEP =A0 =A0\
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 .cfi_restore 21 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP

=A0# ifdef IS_IN_libpthread
=A0# =A0ifdef PIC

http://sources.redhat.com/git/gitweb.cgi?p=3Dglibc-ports.git;a=3Dcommit=
diff;h=3Df84ed6825441096273a893b66a769e37ef68f2f3

commit f84ed6825441096273a893b66a769e37ef68f2f3
Author: Carlos O'Donell <carlos@systemhalted.org>
Date: =A0 Thu Oct 20 15:09:24 2011 -0400

=A0 =A0Update ChangeLog.hppa.

=A0 =A0Add missing entries to ChangeLog.

=A0 =A0Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>

diff --git a/ChangeLog.hppa b/ChangeLog.hppa
index 01e7d1a..b83f4f0 100644
--- a/ChangeLog.hppa
+++ b/ChangeLog.hppa
@@ -6,6 +6,9 @@
=A0 =A0 =A0 =A0* sysdeps/unix/sysv/linux/hppa/linuxthreads/malloc-machi=
ne.h: Remove.
=A0 =A0 =A0 =A0* sysdeps/unix/sysv/linux/hppa/linuxthreads/pt-initfini.=
c: Remove.
=A0 =A0 =A0 =A0* sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cance=
l.h: Remove.
+ =A0 =A0 =A0 * sysdeps/hppa/linuxthreads/pspinlock.c: Remove.
+ =A0 =A0 =A0 * sysdeps/hppa/linuxthreads/pt-machine.h: Remove.
+ =A0 =A0 =A0 * sysdeps/hppa/linuxthreads/tls.h: Remove.

=A02011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>


http://sources.redhat.com/git/gitweb.cgi?p=3Dglibc-ports.git;a=3Dcommit=
diff;h=3D25f991b858ffc104a5b6720ae229cee4e88c976f

commit 25f991b858ffc104a5b6720ae229cee4e88c976f
Author: Carlos O'Donell <carlos@systemhalted.org>
Date: =A0 Thu Oct 20 14:49:52 2011 -0400

=A0 =A0Remove hppa linuxthreads support.

=A0 =A0We now require NPTL and TLS to build glibc therefore
=A0 =A0the hppa linuxthreads support is no longer needed.
=A0 =A0Debian has already transitioned to NPTL support and
=A0 =A0we will continue to work out NPTL issues.

=A0 =A0Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>

diff --git a/ChangeLog.hppa b/ChangeLog.hppa
index 2038513..01e7d1a 100644
--- a/ChangeLog.hppa
+++ b/ChangeLog.hppa
@@ -1,5 +1,14 @@
=A02011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>

+ =A0 =A0 =A0 * sysdeps/unix/sysv/linux/hppa/linuxthreads/aio_cancel.c:=
 Remove.
+ =A0 =A0 =A0 * sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/initspin=
=2Eh: Remove.
+ =A0 =A0 =A0 * sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/pthreadt=
ypes.h: Remove.
+ =A0 =A0 =A0 * sysdeps/unix/sysv/linux/hppa/linuxthreads/malloc-machin=
e.h: Remove.
+ =A0 =A0 =A0 * sysdeps/unix/sysv/linux/hppa/linuxthreads/pt-initfini.c=
: Remove.
+ =A0 =A0 =A0 * sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cancel=
=2Eh: Remove.
+
+2011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>
+
=A0 =A0 =A0 =A0* sysdeps/hppa/stackinfo.h: Update copyright year.
=A0 =A0 =A0 =A0Include elf.h and define DEFAULT_STACK_PERMS.

diff --git a/sysdeps/hppa/linuxthreads/pspinlock.c
b/sysdeps/hppa/linuxthreads/pspinlock.c
deleted file mode 100644
index e5a5545..0000000
--- a/sysdeps/hppa/linuxthreads/pspinlock.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/* POSIX spinlock implementation. =A0hppa version.
- =A0 Copyright (C) 2000 Free Software Foundation, Inc.
- =A0 This file is part of the GNU C Library.
-
- =A0 The GNU C Library is free software; you can redistribute it and/o=
r
- =A0 modify it under the terms of the GNU Lesser General Public Licens=
e as
- =A0 published by the Free Software Foundation; either version 2.1 of =
the
- =A0 License, or (at your option) any later version.
-
- =A0 The GNU C Library is distributed in the hope that it will be usef=
ul,
- =A0 but WITHOUT ANY WARRANTY; without even the implied warranty of
- =A0 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. =A0See the G=
NU
- =A0 Lesser General Public License for more details.
-
- =A0 You should have received a copy of the GNU Lesser General Public
- =A0 License along with the GNU C Library; see the file COPYING.LIB. =A0=
If not,
- =A0 write to the Free Software Foundation, Inc., 59 Temple Place - Su=
ite 330,
- =A0 Boston, MA 02111-1307, USA. =A0*/
-
-#include <errno.h>
-#include <pthread.h>
-#include "internals.h"
-
-int
-__pthread_spin_lock (pthread_spinlock_t *lock)
-{
- =A0volatile unsigned int *addr =3D __ldcw_align (lock);
-
- =A0while (__ldcw (addr) =3D=3D 0)
- =A0 =A0while (*addr =3D=3D 0) ;
-
- =A0return 0;
-}
-weak_alias (__pthread_spin_lock, pthread_spin_lock)
-
-
-int
-__pthread_spin_trylock (pthread_spinlock_t *lock)
-{
- =A0volatile unsigned int *a =3D __ldcw_align (lock);
-
- =A0return __ldcw (a) ? 0 : EBUSY;
-}
-weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
-
-
-int
-__pthread_spin_unlock (pthread_spinlock_t *lock)
-{
- =A0volatile unsigned int *a =3D __ldcw_align (lock);
- =A0int tmp =3D 1;
- =A0/* This should be a memory barrier to newer compilers */
- =A0__asm__ __volatile__ ("stw,ma %1,0(%0)"
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0: : "r" (a), "r" (tmp)=
 : "memory");
- =A0return 0;
-}
-weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
-
-
-int
-__pthread_spin_init (pthread_spinlock_t *lock, int pshared)
-{
- =A0/* We can ignore the `pshared' parameter. =A0Since we are busy-wai=
ting
- =A0 =A0 all processes which can access the memory location `lock' poi=
nts
- =A0 =A0 to can use the spinlock. =A0*/
- =A0volatile unsigned int *a =3D __ldcw_align (lock);
- =A0int tmp =3D 1;
- =A0/* This should be a memory barrier to newer compilers */
- =A0__asm__ __volatile__ ("stw,ma %1,0(%0)"
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0: : "r" (a), "r" (tmp)=
 : "memory");
- =A0return 0;
-}
-weak_alias (__pthread_spin_init, pthread_spin_init)
-
-
-int
-__pthread_spin_destroy (pthread_spinlock_t *lock)
-{
- =A0/* Nothing to do. =A0*/
- =A0return 0;
-}
-weak_alias (__pthread_spin_destroy, pthread_spin_destroy)
diff --git a/sysdeps/hppa/linuxthreads/pt-machine.h
b/sysdeps/hppa/linuxthreads/pt-machine.h
deleted file mode 100644
index f35523f..0000000
--- a/sysdeps/hppa/linuxthreads/pt-machine.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/* Machine-dependent pthreads configuration and inline functions.
- =A0 hppa version.
- =A0 Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc.
- =A0 This file is part of the GNU C Library.
- =A0 Contributed by Richard Henderson <rth@tamu.edu>.
-
- =A0 The GNU C Library is free software; you can redistribute it and/o=
r
- =A0 modify it under the terms of the GNU Lesser General Public Licens=
e as
- =A0 published by the Free Software Foundation; either version 2.1 of =
the
- =A0 License, or (at your option) any later version.
-
- =A0 The GNU C Library is distributed in the hope that it will be usef=
ul,
- =A0 but WITHOUT ANY WARRANTY; without even the implied warranty of
- =A0 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. =A0See the G=
NU
- =A0 Lesser General Public License for more details.
-
- =A0 You should have received a copy of the GNU Lesser General Public
- =A0 License along with the GNU C Library; see the file COPYING.LIB. =A0=
If not,
- =A0 write to the Free Software Foundation, Inc., 59 Temple Place - Su=
ite 330,
- =A0 Boston, MA 02111-1307, USA. =A0*/
-
-#ifndef _PT_MACHINE_H
-#define _PT_MACHINE_H =A0 1
-
-#include <sys/types.h>
-#include <bits/initspin.h>
-
-#ifndef PT_EI
-# define PT_EI extern inline __attribute__ ((always_inline))
-#endif
-
-extern inline long int testandset (__atomic_lock_t *spinlock);
-extern inline int __compare_and_swap (long int *p, long int oldval,
long int newval);
-extern inline int lock_held (__atomic_lock_t *spinlock);
-extern inline int __load_and_clear (__atomic_lock_t *spinlock);
-
-/* Get some notion of the current stack. =A0Need not be exactly the to=
p
- =A0 of the stack, just something somewhere in the current frame. =A0*=
/
-#define CURRENT_STACK_FRAME =A0stack_pointer
-register char * stack_pointer __asm__ ("%r30");
-
-/* Get/Set thread-specific pointer. =A0We have to call into the kernel=
 to
- * modify it, but we can read it in user mode. =A0*/
-#ifndef THREAD_SELF
-#define THREAD_SELF __get_cr27()
-#endif
-
-#ifndef SET_THREAD_SELF
-#define SET_THREAD_SELF(descr) __set_cr27(descr)
-#endif
-/* Use this to determine type */
-struct _pthread_descr_struct *__thread_self;
-
-static inline struct _pthread_descr_struct * __get_cr27(void)
-{
- =A0long cr27;
- =A0asm ("mfctl %%cr27, %0" : "=3Dr" (cr27) : );
- =A0return (struct _pthread_descr_struct *) cr27;
-}
-
-#ifndef INIT_THREAD_SELF
-#define INIT_THREAD_SELF(descr, nr) __set_cr27(descr)
-#endif
-
-static inline void __set_cr27(struct _pthread_descr_struct * cr27)
-{
- =A0asm ( "ble =A0 0xe0(%%sr2, %%r0)\n\t"
- =A0 =A0 =A0 "copy =A0 %0, %%r26"
- =A0 =A0 =A0 : : "r" (cr27) : "r26" );
-}
-
-/* We want the OS to assign stack addresses. =A0*/
-#define FLOATING_STACKS =A0 =A0 =A0 =A01
-#define ARCH_STACK_MAX_SIZE =A0 =A08*1024*1024
-
-/* The hppa only has one atomic read and modify memory operation,
- =A0 load and clear, so hppa spinlocks must use zero to signify that
- =A0 someone is holding the lock. =A0The address used for the ldcw
- =A0 semaphore must be 16-byte aligned. =A0*/
-#define __ldcw(a) \
-({ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
- =A0unsigned int __ret; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
- =A0__asm__ __volatile__("ldcw 0(%1),%0" =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0: "=3Dr" (__ret) : "r" (a)=
 : "memory"); =A0 =A0 =A0 =A0 =A0 =A0\
- =A0__ret; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
-})
-
-/* Strongly ordered lock reset */
-#define __lock_reset(lock_addr, tmp) \
-({
 =A0 =A0 =A0 =A0 \
- =A0 =A0 =A0 __asm__ __volatile__ ("stw,ma %1,0(%0)"
 =A0 =A0 =A0 =A0 \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 : : "r" (=
lock_addr), "r" (tmp) :
"memory"); =A0 =A0 \
-})
-
-/* Because malloc only guarantees 8-byte alignment for malloc'd data,
- =A0 and GCC only guarantees 8-byte alignment for stack locals, we can=
't
- =A0 be assured of 16-byte alignment for atomic lock data even if we
- =A0 specify "__attribute ((aligned(16)))" in the type declaration. =A0=
So,
- =A0 we use a struct containing an array of four ints for the atomic l=
ock
- =A0 type and dynamically select the 16-byte aligned int from the arra=
y
- =A0 for the semaphore. =A0*/
-#define __PA_LDCW_ALIGNMENT 16
-#define __ldcw_align(a) ({ \
- =A0volatile unsigned int __ret =3D (unsigned int) a; =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0\
- =A0if ((__ret & ~(__PA_LDCW_ALIGNMENT - 1)) < (unsigned int) a) =A0 =A0=
 =A0 =A0 \
- =A0 =A0__ret =3D (__ret & ~(__PA_LDCW_ALIGNMENT - 1)) + __PA_LDCW_ALI=
GNMENT; \
- =A0(unsigned int *) __ret; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
-})
-
-/* Spinlock implementation; required. =A0*/
-PT_EI int
-__load_and_clear (__atomic_lock_t *spinlock)
-{
- =A0volatile unsigned int *a =3D __ldcw_align (spinlock);
-
- =A0return __ldcw (a);
-}
-
-/* Emulate testandset */
-PT_EI long int
-testandset (__atomic_lock_t *spinlock)
-{
- =A0return (__load_and_clear(spinlock) =3D=3D 0);
-}
-
-PT_EI int
-lock_held (__atomic_lock_t *spinlock)
-{
- =A0volatile unsigned int *a =3D __ldcw_align (spinlock);
-
- =A0return *a =3D=3D 0;
-}
-
-#endif /* pt-machine.h */
diff --git a/sysdeps/hppa/linuxthreads/tls.h b/sysdeps/hppa/linuxthread=
s/tls.h
deleted file mode 100644
index 3d33a18..0000000
--- a/sysdeps/hppa/linuxthreads/tls.h
+++ /dev/null
@@ -1,163 +0,0 @@
-/* Definition for thread-local data handling. =A0linuxthreads/hppa ver=
sion.
- =A0 Copyright (C) 2005 Free Software Foundation, Inc.
- =A0 This file is part of the GNU C Library.
-
- =A0 The GNU C Library is free software; you can redistribute it and/o=
r
- =A0 modify it under the terms of the GNU Lesser General Public
- =A0 License as published by the Free Software Foundation; either
- =A0 version 2.1 of the License, or (at your option) any later version=
=2E
-
- =A0 The GNU C Library is distributed in the hope that it will be usef=
ul,
- =A0 but WITHOUT ANY WARRANTY; without even the implied warranty of
- =A0 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. =A0See the G=
NU
- =A0 Lesser General Public License for more details.
-
- =A0 You should have received a copy of the GNU Lesser General Public
- =A0 License along with the GNU C Library; if not, write to the Free
- =A0 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- =A0 02111-1307 USA. =A0*/
-
-#ifndef _TLS_H
-#define _TLS_H
-
-#ifndef __ASSEMBLER__
-# include <pt-machine.h>
-# include <stdbool.h>
-# include <stddef.h>
-
-/* Type for the dtv. =A0*/
-typedef union dtv
-{
- =A0size_t counter;
- =A0struct
- =A0{
- =A0 =A0void *val;
- =A0 =A0bool is_static;
- =A0} pointer;
-} dtv_t;
-
-#else /* __ASSEMBLER__ */
-# include <tcb-offsets.h>
-#endif /* __ASSEMBLER__ */
-
-
-#if defined HAVE_TLS_SUPPORT
-
-/* Signal that TLS support is available. =A0*/
-# define USE_TLS =A0 =A0 =A0 1
-
-# ifndef __ASSEMBLER__
-
-typedef struct
-{
- =A0dtv_t *dtv;
- =A0void *private;
-} tcbhead_t;
-
-/* Include some syscall information for other headers */
-# =A0include <sysdep.h>
-
-/* This is the size of the initial TCB. =A0*/
-# =A0define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
-
-/* Alignment requirements for the initial TCB. =A0*/
-# =A0define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t)
-
-/* This is the size of the TCB. =A0*/
-# =A0define TLS_TCB_SIZE sizeof (tcbhead_t)
-
-/* This is the size we need before TCB. =A0*/
-# =A0define TLS_PRE_TCB_SIZE sizeof (struct _pthread_descr_struct)
-
-/* Alignment requirements for the TCB. =A0*/
-# =A0define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct)
-
-/* The TLS blocks start right after the TCB. =A0*/
-# =A0define TLS_DTV_AT_TP =A0 =A0 =A0 =A01
-
-/* Return the thread descriptor for the current thread. =A0*/
-# =A0undef THREAD_SELF
-# =A0define THREAD_SELF =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0\
- =A0({ struct _pthread_descr_struct *__self; =A0 =A0 \
- =A0 =A0 =A0 __self =3D __get_cr27(); =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0\
- =A0 =A0 =A0 __self - 1; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 \
- =A0 })
-
-# =A0undef INIT_THREAD_SELF
-# =A0define INIT_THREAD_SELF(descr, nr) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0\
- =A0({ struct _pthread_descr_struct *__self =3D (void *)descr; =A0 =A0=
 \
- =A0 =A0 =A0 __set_cr27(__self + 1); =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
- =A0 =A0 =A0 0; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
- =A0 })
-
-/* Access to data in the thread descriptor is easy. =A0*/
-#define THREAD_GETMEM(descr, member) \
- =A0((void) sizeof (descr), THREAD_SELF->member)
-#define THREAD_GETMEM_NC(descr, member) \
- =A0((void) sizeof (descr), THREAD_SELF->member)
-#define THREAD_SETMEM(descr, member, value) \
- =A0((void) sizeof (descr), THREAD_SELF->member =3D (value))
-#define THREAD_SETMEM_NC(descr, member, value) \
- =A0((void) sizeof (descr), THREAD_SELF->member =3D (value))
-
-/* Install the dtv pointer. =A0The pointer passed is to the element wi=
th
- =A0 index -1 which contain the length. =A0*/
-# =A0define INSTALL_DTV(tcbp, dtvp) \
- =A0((tcbhead_t *) (tcbp))->dtv =3D dtvp + 1
-
-/* Install new dtv for current thread. =A0*/
-# =A0define INSTALL_NEW_DTV(dtv) \
- =A0({ tcbhead_t *__tcbp =3D (tcbhead_t *)__get_cr27(); =A0 =A0\
- =A0 =A0 =A0 __tcbp->dtv =3D dtv; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0\
- =A0 })
-
-/* Return dtv of given thread descriptor. =A0*/
-# =A0define GET_DTV(tcbp) \
- =A0(((tcbhead_t *) (tcbp))->dtv)
-
-/* Code to initially initialize the thread pointer. =A0This might need
- =A0 special attention since 'errno' is not yet available and if the
- =A0 operation can cause a failure 'errno' must not be touched. =A0*/
-# =A0define TLS_INIT_TP(tcbp, secondcall) \
- =A0({ __set_cr27(tcbp); 0; })
-
-/* Return the address of the dtv for the current thread. =A0*/
-# =A0define THREAD_DTV() =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
- =A0({ tcbhead_t *__tcbp =3D (tcbhead_t *)__get_cr27(); =A0 =A0\
- =A0 =A0 =A0 __tcbp->dtv; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0\
- =A0 })
-
-# define TLS_MULTIPLE_THREADS_IN_TCB 1
-
-/* Get the thread descriptor definition. =A0This must be after the
- =A0 the definition of THREAD_SELF for TLS. =A0*/
-# =A0include <linuxthreads/descr.h>
-
-# endif /* __ASSEMBLER__ */
-
-#else
-
-# ifndef __ASSEMBLER__
-
-typedef struct
-{
- =A0void *tcb;
- =A0dtv_t *dtv;
- =A0void *self;
- =A0int multiple_threads;
-} tcbhead_t;
-
-/* Get the thread descriptor definition. =A0*/
-# =A0include <linuxthreads/descr.h>
-
-# =A0define NONTLS_INIT_TP \
- =A0do {
 =A0 =A0 =A0 =A0 \
- =A0 =A0static const tcbhead_t nontls_init_tp =3D { .multiple_threads =
=3D 0 }; \
- =A0 =A0INIT_THREAD_SELF(&nontls_init_tp, 0); =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
- =A0} while (0)
-
-# endif /* __ASSEMBLER__ */
-
-#endif /* HAVE_TLS_SUPPORT */
-
-#endif /* tls.h */
diff --git a/sysdeps/unix/sysv/linux/hppa/linuxthreads/aio_cancel.c
b/sysdeps/unix/sysv/linux/hppa/linuxthreads/aio_cancel.c
deleted file mode 100644
index 0d6da82..0000000
--- a/sysdeps/unix/sysv/linux/hppa/linuxthreads/aio_cancel.c
+++ /dev/null
@@ -1,33 +0,0 @@
-#include <shlib-compat.h>
-
-#define aio_cancel64 XXX
-#include <aio.h>
-#undef aio_cancel64
-#include <errno.h>
-
-extern __typeof (aio_cancel) __new_aio_cancel;
-extern __typeof (aio_cancel) __old_aio_cancel;
-
-#define aio_cancel =A0 =A0 __new_aio_cancel
-
-#include <sysdeps/pthread/aio_cancel.c>
-
-#undef aio_cancel
-strong_alias (__new_aio_cancel, __new_aio_cancel64);
-versioned_symbol (librt, __new_aio_cancel, aio_cancel, GLIBC_2_3);
-versioned_symbol (librt, __new_aio_cancel64, aio_cancel64, GLIBC_2_3);
-
-#if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_3)
-
-#undef ECANCELED
-#define aio_cancel =A0 =A0 __old_aio_cancel
-#define ECANCELED =A0 =A0 =A0125
-
-#include <sysdeps/pthread/aio_cancel.c>
-
-#undef aio_cancel
-strong_alias (__old_aio_cancel, __old_aio_cancel64);
-compat_symbol (librt, __old_aio_cancel, aio_cancel, GLIBC_2_1);
-compat_symbol (librt, __old_aio_cancel64, aio_cancel64, GLIBC_2_1);
-
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/initspin.h
b/sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/initspin.h
deleted file mode 100644
index ff0ec20..0000000
--- a/sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/initspin.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/* PA-RISC specific definitions for spinlock initializers.
- =A0 Copyright (C) 2000, 2001 Free Software Foundation, Inc.
- =A0 This file is part of the GNU C Library.
-
- =A0 The GNU C Library is free software; you can redistribute it and/o=
r
- =A0 modify it under the terms of the GNU Lesser General Public Licens=
e as
- =A0 published by the Free Software Foundation; either version 2.1 of =
the
- =A0 License, or (at your option) any later version.
-
- =A0 The GNU C Library is distributed in the hope that it will be usef=
ul,
- =A0 but WITHOUT ANY WARRANTY; without even the implied warranty of
- =A0 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. =A0See the G=
NU
- =A0 Lesser General Public License for more details.
-
- =A0 You should have received a copy of the GNU Lesser General Public
- =A0 License along with the GNU C Library; see the file COPYING.LIB. =A0=
If not,
- =A0 write to the Free Software Foundation, Inc., 59 Temple Place - Su=
ite 330,
- =A0 Boston, MA 02111-1307, USA. =A0*/
-
-/* Initial value of a spinlock. =A0PA-RISC only implements atomic load
- =A0 and clear so this must be non-zero. */
-#define __LT_SPINLOCK_INIT ((__atomic_lock_t) { { 1, 1, 1, 1 } })
-
-/* Initialize global spinlocks without cast, generally macro wrapped *=
/
-#define __LT_SPINLOCK_ALT_INIT { { 1, 1, 1, 1 } }
-
-/* Macros for lock initializers, not using the above definition.
- =A0 The above definition is not used in the case that static initiali=
zers
- =A0 use this value. */
-#define __LOCK_ALT_INITIALIZER { __LT_SPINLOCK_ALT_INIT, 0 }
-
-/* Used to initialize _pthread_fastlock's in non-static case */
-#define __LOCK_INITIALIZER ((struct _pthread_fastlock){
__LT_SPINLOCK_INIT, 0 })
-
-/* Used in pthread_atomic initialization */
-#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_ALT_INIT }
-
-/* Tell the rest of the code that the initializer is non-zero without
- =A0 explaining it's internal structure */
-#define __LT_INITIALIZER_NOT_ZERO
-
diff --git a/sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/pthreadtype=
s.h
b/sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/pthreadtypes.h
deleted file mode 100644
index 7173718..0000000
--- a/sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/pthreadtypes.h
+++ /dev/null
@@ -1,159 +0,0 @@
-/* Linuxthreads - a simple clone()-based implementation of Posix =A0 =A0=
 =A0 =A0*/
-/* threads for Linux. =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 */
-/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) =A0 =A0 =A0=
 =A0 =A0 =A0 =A0*/
-/* =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
*/
-/* This program is free software; you can redistribute it and/or =A0 =A0=
 =A0 =A0*/
-/* modify it under the terms of the GNU Library General Public License=
 =A0*/
-/* as published by the Free Software Foundation; either version 2 =A0 =
=A0 =A0 */
-/* of the License, or (at your option) any later version. =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 */
-/* =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
*/
-/* This program is distributed in the hope that it will be useful, =A0=
 =A0 =A0*/
-/* but WITHOUT ANY WARRANTY; without even the implied warranty of =A0 =
=A0 =A0 */
-/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. =A0See the =A0=
 =A0 =A0 =A0*/
-/* GNU Library General Public License for more details. =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 */
-
-#if !defined _BITS_TYPES_H && !defined _PTHREAD_H
-# error "Never include <bits/pthreadtypes.h> directly; use
<sys/types.h> instead."
-#endif
-
-#ifndef _BITS_PTHREADTYPES_H
-#define _BITS_PTHREADTYPES_H =A0 1
-
-#define __need_schedparam
-#include <bits/sched.h>
-
-/* We need 128-bit alignment for the ldcw semaphore. =A0At most, we ar=
e
- =A0 assured of 64-bit alignment for stack locals and malloc'd data. =A0=
Thus,
- =A0 we use a struct with four ints for the atomic lock type. =A0The l=
ocking
- =A0 code will figure out which of the four to use for the ldcw semaph=
ore. =A0*/
-typedef volatile struct {
- =A0int lock[4];
-} __attribute__ ((aligned(16))) __atomic_lock_t;
-
-/* Fast locks (not abstract because mutexes and conditions aren't abst=
ract). */
-struct _pthread_fastlock
-{
- =A0__atomic_lock_t __spinlock; =A0/* Used by compare_and_swap emulati=
on. =A0Also,
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0ad=
aptive SMP lock stores spin count here. */
- =A0long int __status; =A0 =A0 =A0 =A0 =A0 /* "Free" or "taken" or hea=
d of waiting list */
-};
-
-#ifndef _PTHREAD_DESCR_DEFINED
-/* Thread descriptors */
-typedef struct _pthread_descr_struct *_pthread_descr;
-# define _PTHREAD_DESCR_DEFINED
-#endif
-
-
-/* Attributes for threads. =A0*/
-typedef struct __pthread_attr_s
-{
- =A0int __detachstate;
- =A0int __schedpolicy;
- =A0struct __sched_param __schedparam;
- =A0int __inheritsched;
- =A0int __scope;
- =A0size_t __guardsize;
- =A0int __stackaddr_set;
- =A0void *__stackaddr;
- =A0size_t __stacksize;
-} pthread_attr_t;
-
-
-/* Conditions (not abstract because of PTHREAD_COND_INITIALIZER */
-
-#ifdef __GLIBC_HAVE_LONG_LONG
-__extension__ typedef long long __pthread_cond_align_t;
-#else
-typedef long __pthread_cond_align_t;
-#endif
-
-typedef struct
-{
- =A0struct _pthread_fastlock __c_lock; /* Protect against concurrent a=
ccess */
- =A0_pthread_descr __c_waiting; =A0 =A0 =A0 =A0/* Threads waiting on t=
his condition */
- =A0char __padding[48 - sizeof (struct _pthread_fastlock)
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0- sizeof (_pthread_descr) - sizeof (__=
pthread_cond_align_t)];
- =A0__pthread_cond_align_t __align;
-} pthread_cond_t;
-
-
-/* Attribute for conditionally variables. =A0*/
-typedef struct
-{
- =A0int __dummy;
-} pthread_condattr_t;
-
-/* Keys for thread-specific data */
-typedef unsigned int pthread_key_t;
-
-
-/* Mutexes (not abstract because of PTHREAD_MUTEX_INITIALIZER). =A0*/
-/* (The layout is unnatural to maintain binary compatibility
- =A0 =A0with earlier releases of LinuxThreads.) */
-typedef struct
-{
- =A0int __m_reserved; =A0 =A0 =A0 =A0 =A0 =A0 =A0 /* Reserved for futu=
re use */
- =A0int __m_count; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/* Depth of recu=
rsive locking */
- =A0_pthread_descr __m_owner; =A0 =A0 =A0 /* Owner thread (if recursiv=
e or errcheck) */
- =A0int __m_kind; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 /* Mutex kind: f=
ast, recursive or errcheck */
- =A0struct _pthread_fastlock __m_lock; /* Underlying fast lock */
-} pthread_mutex_t;
-
-
-/* Attribute for mutex. =A0*/
-typedef struct
-{
- =A0int __mutexkind;
-} pthread_mutexattr_t;
-
-
-/* Once-only execution */
-typedef int pthread_once_t;
-
-#if defined __USE_UNIX98 || defined __USE_XOPEN2K
-/* Read-write locks. =A0*/
-typedef struct _pthread_rwlock_t
-{
- =A0struct _pthread_fastlock __rw_lock; /* Lock to guarantee mutual ex=
clusion */
- =A0int __rw_readers; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 /* Number of=
 readers */
- =A0_pthread_descr __rw_writer; =A0 =A0 =A0 =A0 /* Identity of writer,=
 or NULL if none */
- =A0_pthread_descr __rw_read_waiting; =A0 /* Threads waiting for readi=
ng */
- =A0_pthread_descr __rw_write_waiting; =A0/* Threads waiting for writi=
ng */
- =A0int __rw_kind; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/* Reade=
r/Writer preference selection */
- =A0int __rw_pshared; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 /* Shared be=
tween processes or not */
-} pthread_rwlock_t;
-
-
-/* Attribute for read-write locks. =A0*/
-typedef struct
-{
- =A0int __lockkind;
- =A0int __pshared;
-} pthread_rwlockattr_t;
-#endif
-
-#ifdef __USE_XOPEN2K
-/* POSIX spinlock data type. =A0*/
-typedef __atomic_lock_t pthread_spinlock_t;
-
-/* POSIX barrier. */
-typedef struct {
- =A0struct _pthread_fastlock __ba_lock; /* Lock to guarantee mutual ex=
clusion */
- =A0int __ba_required; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/* Threads n=
eeded for completion */
- =A0int __ba_present; =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 /* Threads w=
aiting */
- =A0_pthread_descr __ba_waiting; =A0 =A0 =A0 =A0/* Queue of waiting th=
reads */
-} pthread_barrier_t;
-
-/* barrier attribute */
-typedef struct {
- =A0int __pshared;
-} pthread_barrierattr_t;
-
-#endif
-
-
-/* Thread identifiers */
-typedef unsigned long int pthread_t;
-
-#endif /* bits/pthreadtypes.h */
diff --git a/sysdeps/unix/sysv/linux/hppa/linuxthreads/malloc-machine.h
b/sysdeps/unix/sysv/linux/hppa/linuxthreads/malloc-machine.h
deleted file mode 100644
index 5dc6e6f..0000000
--- a/sysdeps/unix/sysv/linux/hppa/linuxthreads/malloc-machine.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/* HP-PARISC macro definitions for mutexes, thread-specific data
- =A0 and parameters for malloc.
- =A0 Copyright (C) 2003 Free Software Foundation, Inc.
- =A0 This file is part of the GNU C Library.
- =A0 Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 2003.
-
- =A0 The GNU C Library is free software; you can redistribute it and/o=
r
- =A0 modify it under the terms of the GNU Lesser General Public
- =A0 License as published by the Free Software Foundation; either
- =A0 version 2.1 of the License, or (at your option) any later version=
=2E
-
- =A0 The GNU C Library is distributed in the hope that it will be usef=
ul,
- =A0 but WITHOUT ANY WARRANTY; without even the implied warranty of
- =A0 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. =A0See the G=
NU
- =A0 Lesser General Public License for more details.
-
- =A0 You should have received a copy of the GNU Lesser General Public
- =A0 License along with the GNU C Library; if not, write to the Free
- =A0 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- =A0 02111-1307 USA. =A0*/
-
-#ifndef _MALLOC_MACHINE_H
-#define _MALLOC_MACHINE_H
-
-#undef thread_atfork_static
-
-#include <atomic.h>
-#include <bits/libc-lock.h>
-
-__libc_lock_define (typedef, mutex_t)
-
-/* Since our lock structure does not tolerate being initialized to
zero, we must
- =A0 modify the standard function calls made by malloc */
-# =A0define mutex_init(m) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
- =A0 =A0 =A0 __libc_maybe_call (__pthread_mutex_init, (m, NULL), \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 (((m)->__m_lock.__spinlock =3D
__LT_SPINLOCK_INIT),(*(int *)(m))) )
-# =A0define mutex_lock(m) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
- =A0 =A0 =A0 __libc_maybe_call (__pthread_mutex_lock, (m), \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 (__load_and_clear(&((m)->=
__m_lock.__spinlock)), 0))
-# =A0define mutex_trylock(m) =A0 =A0 \
- =A0 =A0 =A0 __libc_maybe_call (__pthread_mutex_trylock, (m), \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 (*(int *)(m) ? 1 :
(__load_and_clear(&((m)->__m_lock.__spinlock)), 0)))
-# =A0define mutex_unlock(m) =A0 =A0 =A0\
- =A0 =A0 =A0 __libc_maybe_call (__pthread_mutex_unlock, (m), \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 (((m)->__m_lock.__spinloc=
k =3D
__LT_SPINLOCK_INIT), (*(int *)(m))) )
-
-/* This is defined by newer gcc version unique for each module. =A0*/
-extern void *__dso_handle __attribute__ ((__weak__));
-
-#include <fork.h>
-
-#ifdef SHARED
-# define thread_atfork(prepare, parent, child) \
- =A0 __register_atfork (prepare, parent, child, __dso_handle)
-#else
-# define thread_atfork(prepare, parent, child) \
- =A0 __register_atfork (prepare, parent, child, =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 &__dso_handle =3D=3D NULL ? N=
ULL : __dso_handle)
-#endif
-
-/* thread specific data for glibc */
-
-#include <bits/libc-tsd.h>
-
-typedef int tsd_key_t[1]; =A0 =A0 =A0/* no key data structure, libc ma=
gic does it */
-__libc_tsd_define (static, void *, MALLOC) =A0 =A0 /* declaration/comm=
on
definition */
-#define tsd_key_create(key, destr) =A0 =A0 ((void) (key))
-#define tsd_setspecific(key, data) =A0 =A0 __libc_tsd_set (void *, MAL=
LOC, (data))
-#define tsd_getspecific(key, vptr) =A0 =A0 ((vptr) =3D __libc_tsd_get =
(void
*, MALLOC))
-
-#include <sysdeps/generic/malloc-machine.h>
-
-#endif /* !defined(_MALLOC_MACHINE_H) */
diff --git a/sysdeps/unix/sysv/linux/hppa/linuxthreads/pt-initfini.c
b/sysdeps/unix/sysv/linux/hppa/linuxthreads/pt-initfini.c
deleted file mode 100644
index 27f850c..0000000
--- a/sysdeps/unix/sysv/linux/hppa/linuxthreads/pt-initfini.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/* Special .init and .fini section support for HPPA. =A0Linuxthreads v=
ersion.
- =A0 Copyright (C) 2001, 2003 Free Software Foundation, Inc.
- =A0 This file is part of the GNU C Library.
-
- =A0 The GNU C Library is free software; you can redistribute it
- =A0 and/or modify it under the terms of the GNU Lesser General Public
- =A0 License as published by the Free Software Foundation; either
- =A0 version 2.1 of the License, or (at your option) any later version=
=2E
-
- =A0 In addition to the permissions in the GNU Lesser General Public
- =A0 License, the Free Software Foundation gives you unlimited
- =A0 permission to link the compiled version of this file with other
- =A0 programs, and to distribute those programs without any restrictio=
n
- =A0 coming from the use of this file. =A0(The Lesser General Public
- =A0 License restrictions do apply in other respects; for example, the=
y
- =A0 cover modification of the file, and distribution when not linked
- =A0 into another program.)
-
- =A0 The GNU C Library is distributed in the hope that it will be
- =A0 useful, but WITHOUT ANY WARRANTY; without even the implied warran=
ty
- =A0 of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. =A0See th=
e
- =A0 GNU Lesser General Public License for more details.
-
- =A0 You should have received a copy of the GNU Lesser General Public
- =A0 License along with the GNU C Library; see the file COPYING.LIB. =A0=
If not,
- =A0 write to the Free Software Foundation, 59 Temple Place - Suite 33=
0,
- =A0 Boston, MA 02111-1307, USA. =A0*/
-
-/* This file is compiled into assembly code which is then munged by a =
sed
- =A0 script into two files: crti.s and crtn.s.
-
- =A0 * crti.s puts a function prologue at the beginning of the
- =A0 .init and .fini sections and defines global symbols for
- =A0 those addresses, so they can be called as functions.
-
- =A0 * crtn.s puts the corresponding function epilogues
- =A0 in the .init and .fini sections. */
-
-/* If we use the standard C version, the linkage table pointer won't
- =A0 be properly preserved due to the splitting up of function prologu=
es
- =A0 and epilogues. =A0Therefore we write these in assembly to make su=
re
- =A0 they do the right thing. =A0*/
-
-__asm__ (
-"#include \"defs.h\"\n"
-"\n"
-"/*@HEADER_ENDS*/\n"
-"\n"
-"/*@_init_PROLOG_BEGINS*/\n"
-" =A0 =A0 =A0.section .init\n"
-" =A0 =A0 =A0.align 4\n"
-" =A0 =A0 =A0.globl _init\n"
-" =A0 =A0 =A0.type _init,@function\n"
-"_init:\n"
-" =A0 =A0 =A0stw =A0 =A0 %rp,-20(%sp)\n"
-" =A0 =A0 =A0stwm =A0 =A0%r4,64(%sp)\n"
-" =A0 =A0 =A0stw =A0 =A0 %r19,-32(%sp)\n"
-" =A0 =A0 =A0bl =A0 =A0 =A0__pthread_initialize_minimal,%rp\n"
-" =A0 =A0 =A0copy =A0 =A0%r19,%r4 =A0 =A0 =A0 =A0/* delay slot */\n"
-" =A0 =A0 =A0copy =A0 =A0%r4,%r19\n"
-"/*@_init_PROLOG_ENDS*/\n"
-"\n"
-"/*@_init_EPILOG_BEGINS*/\n"
-"/* Here is the tail end of _init. =A0*/\n"
-" =A0 =A0 =A0.section .init\n"
-" =A0 =A0 =A0ldw =A0 =A0 -84(%sp),%rp\n"
-" =A0 =A0 =A0copy =A0 =A0%r4,%r19\n"
-" =A0 =A0 =A0bv =A0 =A0 =A0%r0(%rp)\n"
-"_end_init:\n"
-" =A0 =A0 =A0ldwm =A0 =A0-64(%sp),%r4\n"
-"\n"
-"/* Our very own unwind info, because the assembler can't handle\n"
-" =A0 functions split into two or more pieces. =A0*/\n"
-" =A0 =A0 =A0.section .PARISC.unwind,\"a\",@progbits\n"
-" =A0 =A0 =A0.extern _init\n"
-" =A0 =A0 =A0.word =A0 _init, _end_init\n"
-" =A0 =A0 =A0.byte =A0 0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\=
n"
-"\n"
-"/*@_init_EPILOG_ENDS*/\n"
-"\n"
-"/*@_fini_PROLOG_BEGINS*/\n"
-" =A0 =A0 =A0.section .fini\n"
-" =A0 =A0 =A0.align 4\n"
-" =A0 =A0 =A0.globl _fini\n"
-" =A0 =A0 =A0.type _fini,@function\n"
-"_fini:\n"
-" =A0 =A0 =A0stw =A0 =A0 %rp,-20(%sp)\n"
-" =A0 =A0 =A0stwm =A0 =A0%r4,64(%sp)\n"
-" =A0 =A0 =A0stw =A0 =A0 %r19,-32(%sp)\n"
-" =A0 =A0 =A0copy =A0 =A0%r19,%r4\n"
-"/*@_fini_PROLOG_ENDS*/\n"
-"\n"
-"/*@_fini_EPILOG_BEGINS*/\n"
-" =A0 =A0 =A0.section .fini\n"
-" =A0 =A0 =A0ldw =A0 =A0 -84(%sp),%rp\n"
-" =A0 =A0 =A0copy =A0 =A0%r4,%r19\n"
-" =A0 =A0 =A0bv =A0 =A0 =A0%r0(%rp)\n"
-"_end_fini:\n"
-" =A0 =A0 =A0ldwm =A0 =A0-64(%sp),%r4\n"
-"\n"
-" =A0 =A0 =A0.section .PARISC.unwind,\"a\",@progbits\n"
-" =A0 =A0 =A0.extern _fini\n"
-" =A0 =A0 =A0.word =A0 _fini, _end_fini\n"
-" =A0 =A0 =A0.byte =A0 0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\=
n"
-"\n"
-"/*@_fini_EPILOG_ENDS*/\n"
-"\n"
-"/*@TRAILER_BEGINS*/\n"
-);
diff --git a/sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cancel.h
b/sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cancel.h
deleted file mode 100644
index 51d6cf3..0000000
--- a/sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cancel.h
+++ /dev/null
@@ -1,242 +0,0 @@
-/* cancellable system calls for Linux/HPPA.
- =A0 Copyright (C) 2003 Free Software Foundation, Inc.
- =A0 This file is part of the GNU C Library.
- =A0 Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 2003.
-
- =A0 The GNU C Library is free software; you can redistribute it and/o=
r
- =A0 modify it under the terms of the GNU Lesser General Public
- =A0 License as published by the Free Software Foundation; either
- =A0 version 2.1 of the License, or (at your option) any later version=
=2E
-
- =A0 The GNU C Library is distributed in the hope that it will be usef=
ul,
- =A0 but WITHOUT ANY WARRANTY; without even the implied warranty of
- =A0 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. =A0See the G=
NU
- =A0 Lesser General Public License for more details.
-
- =A0 You should have received a copy of the GNU Lesser General Public
- =A0 License along with the GNU C Library; if not, write to the Free
- =A0 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- =A0 02111-1307 USA. =A0*/
-
-#include <sysdep.h>
-#include <tls.h>
-#ifndef __ASSEMBLER__
-# include <linuxthreads/internals.h>
-#endif
-
-#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_=
librt
-
-# ifndef NO_ERROR
-# =A0define NO_ERROR -0x1000
-# endif
-
-/* The syscall cancellation mechanism requires userspace
- =A0 assistance, the following code does roughly this:
-
- =A0 =A0 =A0 do arguments (read arg5 and arg6 to registers)
- =A0 =A0 =A0 setup frame
-
- =A0 =A0 =A0 check if there are threads, yes jump to pseudo_cancel
-
- =A0 =A0 =A0 unthreaded:
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 syscall
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 check syscall return (jump to pre_end)
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 set errno
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 set return to -1
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 (jump to pre_end)
-
- =A0 =A0 =A0 pseudo_cancel:
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 cenable
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 syscall
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 cdisable
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 check syscall return (jump to pre_end)
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 set errno
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 set return to -1
-
- =A0 =A0 =A0 pre_end
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 restore stack
-
- =A0 =A0 =A0 It is expected that 'ret' and 'END' macros will
- =A0 =A0 =A0 append an 'undo arguments' and 'return' to the
- =A0 =A0 =A0 this PSEUDO macro. */
-
-# undef PSEUDO
-# define PSEUDO(name, syscall_name, args) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
- =A0 =A0 =A0 ENTRY (name) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0\
- =A0 =A0 =A0 DOARGS_##args =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 copy TREG, %r1 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 copy %sp, TREG =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 stwm %r1, 64(%sp) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 stw %rp, -20(%sp) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 stw TREG, -4(%sp) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* Done setting up frame, continue... */ =A0 =A0 =A0 =A0A=
SM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 SINGLE_THREAD_P =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 cmpib,<>,n 0,%ret0,L(pseudo_cancel) =A0 =A0 =A0 =A0 =A0 =A0=
 ASM_LINE_SEP =A0 =A0\
-L(unthreaded): =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* Save r19 */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 SAVE_PIC(TREG) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* Do syscall, delay loads # */ =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ble =A00x100(%sr2,%r0) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldi SYS_ify (syscall_name), %r20 /* delay */ =A0 =A0ASM_L=
INE_SEP =A0 =A0\
- =A0 =A0 =A0 ldi NO_ERROR,%r1 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 cmpb,>>=3D,n %r1,%ret0,L(pre_end) =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* Restore r19 from TREG */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 LOAD_PIC(TREG) /* delay */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 SYSCALL_ERROR_HANDLER =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* Use TREG for temp storage */ =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 copy %ret0, TREG /* delay */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* OPTIMIZE: Don't reload r19 */ =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* do a -1*syscall_ret0 */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 sub %r0, TREG, TREG =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* Store into errno location */ =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 stw TREG, 0(%sr0,%ret0) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 b L(pre_end) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* return -1 as error */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldo -1(%r0), %ret0 /* delay */ =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0ASM_LINE_SEP =A0 =A0\
-L(pseudo_cancel): =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 PUSHARGS_##args /* Save args */ =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* Save r19 into TREG */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 CENABLE /* FUNC CALL */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 SAVE_PIC(TREG) /* delay */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* restore syscall args */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 POPARGS_##args =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* save mask from cenable (use stub rp slot) */ ASM_LINE_=
SEP =A0 =A0\
- =A0 =A0 =A0 stw %ret0, -24(%sp) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* ... SYSCALL ... */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ble 0x100(%sr2,%r0) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldi SYS_ify (syscall_name), %r20 /* delay */ =A0 =A0ASM_L=
INE_SEP =A0 =A0\
- =A0 =A0 =A0 /* ............... */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 LOAD_PIC(TREG) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* pass mask as arg0 to cdisable */ =A0 =A0 =A0 =A0 =A0 =A0=
 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldw -24(%sp), %r26 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 CDISABLE =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 stw %ret0, -24(%sp) /* delay */ =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* Restore syscall return */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldw -24(%sp), %ret0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* compare error */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldi NO_ERROR,%r1 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* branch if no error */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 cmpb,>>=3D,n %r1,%ret0,L(pre_end) =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 LOAD_PIC(TREG) =A0/* cond. nullify */ =A0 =A0 =A0 =A0 =A0=
 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 copy %ret0, TREG /* save syscall return */ =A0 =A0 =A0ASM=
_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 SYSCALL_ERROR_HANDLER =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* make syscall res value positive */ =A0 =A0 =A0 =A0 =A0=
 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 sub %r0, TREG, TREG =A0 =A0 /* delay */ =A0 =A0 =A0 =A0 =A0=
 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* No need to LOAD_PIC */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* store into errno location */ =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 stw TREG, 0(%sr0,%ret0) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* return -1 */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldo -1(%r0), %ret0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
-L(pre_end): =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* Restore rp before exit */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldw -84(%sr0,%sp), %rp =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* Undo frame */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldwm -64(%sp),TREG =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 /* No need to LOAD_PIC */ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 ASM_LINE_SEP
-
-/* Save arguments into our frame */
-# define PUSHARGS_0 =A0 =A0/* nothing to do */
-# define PUSHARGS_1 =A0 =A0PUSHARGS_0 stw %r26, -36(%sr0,%sp) =A0 =A0 =
=A0ASM_LINE_SEP
-# define PUSHARGS_2 =A0 =A0PUSHARGS_1 stw %r25, -40(%sr0,%sp) =A0 =A0 =
=A0ASM_LINE_SEP
-# define PUSHARGS_3 =A0 =A0PUSHARGS_2 stw %r24, -44(%sr0,%sp) =A0 =A0 =
=A0ASM_LINE_SEP
-# define PUSHARGS_4 =A0 =A0PUSHARGS_3 stw %r23, -48(%sr0,%sp) =A0 =A0 =
=A0ASM_LINE_SEP
-# define PUSHARGS_5 =A0 =A0PUSHARGS_4 stw %r22, -52(%sr0,%sp) =A0 =A0 =
=A0ASM_LINE_SEP
-# define PUSHARGS_6 =A0 =A0PUSHARGS_5 stw %r21, -56(%sr0,%sp) =A0 =A0 =
=A0ASM_LINE_SEP
-
-/* Bring them back from the stack */
-# define POPARGS_0 =A0 =A0 /* nothing to do */
-# define POPARGS_1 =A0 =A0 POPARGS_0 ldw -36(%sr0,%sp), %r26 =A0 =A0 =A0=
 ASM_LINE_SEP
-# define POPARGS_2 =A0 =A0 POPARGS_1 ldw -40(%sr0,%sp), %r25 =A0 =A0 =A0=
 ASM_LINE_SEP
-# define POPARGS_3 =A0 =A0 POPARGS_2 ldw -44(%sr0,%sp), %r24 =A0 =A0 =A0=
 ASM_LINE_SEP
-# define POPARGS_4 =A0 =A0 POPARGS_3 ldw -48(%sr0,%sp), %r23 =A0 =A0 =A0=
 ASM_LINE_SEP
-# define POPARGS_5 =A0 =A0 POPARGS_4 ldw -52(%sr0,%sp), %r22 =A0 =A0 =A0=
 ASM_LINE_SEP
-# define POPARGS_6 =A0 =A0 POPARGS_5 ldw -56(%sr0,%sp), %r21 =A0 =A0 =A0=
 ASM_LINE_SEP
-
-# ifdef IS_IN_libpthread
-# =A0ifdef PIC
-# =A0 define CENABLE .import __pthread_enable_asynccancel,code ASM_LIN=
E_SEP \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 bl __pthread_enable_async=
cancel,%r2 ASM_LINE_SEP
-# =A0 define CDISABLE .import __pthread_disable_asynccancel,code ASM_L=
INE_SEP \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 bl __pthread_disable_asyn=
ccancel,%r2 ASM_LINE_SEP
-# =A0else
-# =A0 define CENABLE .import __pthread_enable_asynccancel,code ASM_LIN=
E_SEP \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 bl __pthread_enable_async=
cancel,%r2 ASM_LINE_SEP
-# =A0 define CDISABLE .import __pthread_disable_asynccancel,code ASM_L=
INE_SEP \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 bl __pthread_disable_asyn=
ccancel,%r2 ASM_LINE_SEP
-# =A0endif
-# elif !defined NOT_IN_libc
-# =A0ifdef PIC
-# =A0 define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_S=
EP \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 bl __libc_enable_asynccan=
cel,%r2 ASM_LINE_SEP
-# =A0 define CDISABLE =A0 =A0.import __libc_disable_asynccancel,code A=
SM_LINE_SEP \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 bl __libc_disable_asyncca=
ncel,%r2 ASM_LINE_SEP
-# =A0else
-# =A0 define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_S=
EP \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 bl __libc_enable_asynccan=
cel,%r2 ASM_LINE_SEP
-# =A0 define CDISABLE =A0 =A0.import __libc_disable_asynccancel,code A=
SM_LINE_SEP \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 bl __libc_disable_asyncca=
ncel,%r2 ASM_LINE_SEP
-# =A0endif
-# else
-# =A0ifdef PIC
-# =A0 define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_=
SEP \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 bl __librt_enable_asyncca=
ncel,%r2 ASM_LINE_SEP
-# =A0 define CDISABLE .import __librt_disable_asynccancel,code ASM_LIN=
E_SEP \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 bl __librt_disable_asyncc=
ancel,%r2 ASM_LINE_SEP
-# =A0else
-# =A0 define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_=
SEP \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 bl __librt_enable_asyncca=
ncel,%r2 ASM_LINE_SEP
-# =A0 define CDISABLE .import __librt_disable_asynccancel,code ASM_LIN=
E_SEP \
- =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 bl __librt_disable_asyncc=
ancel,%r2 ASM_LINE_SEP
-# =A0endif
-# endif
-
-/* p_header.multiple_threads is +12 from the pthread_descr struct star=
t,
- =A0 We could have called __get_cr27() but we really want less overhea=
d */
-# define MULTIPLE_THREADS_OFFSET 0xC
-
-/* cr27 has been initialized to 0x0 by kernel */
-# define NO_THREAD_CR27 0x0
-
-# ifdef IS_IN_libpthread
-# =A0define __local_multiple_threads __pthread_multiple_threads
-# elif !defined NOT_IN_libc
-# =A0define __local_multiple_threads __libc_multiple_threads
-# else
-# =A0define __local_multiple_threads __librt_multiple_threads
-# endif
-
-# ifndef __ASSEMBLER__
-# =A0if !defined NOT_IN_libc || defined IS_IN_libpthread
-extern int __local_multiple_threads attribute_hidden;
-# =A0else
-extern int __local_multiple_threads;
-# =A0endif
-# =A0define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads=
 =3D=3D 0, 1)
-# else
-/* This ALT version requires newer kernel support */
-# =A0define SINGLE_THREAD_P_MFCTL
=A0 =A0 =A0 =A0 =A0\
- =A0 =A0 =A0 mfctl %cr27, %ret0
ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 cmpib,=3D NO_THREAD_CR27,%ret0,L(stp)
ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 nop
ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldw MULTIPLE_THREADS_OFFSET(%sr0,%ret0),%ret0
ASM_LINE_SEP =A0 =A0\
-L(stp):
=A0ASM_LINE_SEP
-# =A0ifdef PIC
-/* Slower version uses GOT to get value of __local_multiple_threads */
-# =A0 define SINGLE_THREAD_P
 =A0 =A0 =A0 =A0 \
- =A0 =A0 =A0 addil LT%__local_multiple_threads, %r19
ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldw RT%__local_multiple_threads(%sr0,%r1), %ret0
ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldw 0(%sr0,%ret0), %ret0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0ASM_LINE_SEP
-# =A0else
-/* Slow non-pic version using DP */
-# =A0 define SINGLE_THREAD_P
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 \
- =A0 =A0 =A0 addil LR%__local_multiple_threads-$global$,%r27
 ASM_LINE_SEP =A0 =A0\
- =A0 =A0 =A0 ldw RR%__local_multiple_threads-$global$(%sr0,%r1),%ret0
=A0ASM_LINE_SEP
-# =A0endif
-# endif
-#elif !defined __ASSEMBLER__
-
-/* This code should never be used but we define it anyhow. =A0*/
-# define SINGLE_THREAD_P (1)
-
-#endif
-/* !defined NOT_IN_libc || defined IS_IN_libpthread */

http://sources.redhat.com/git/gitweb.cgi?p=3Dglibc-ports.git;a=3Dcommit=
diff;h=3D9dd87de7ff43261dc83c74cc561ae392a405663f

commit 9dd87de7ff43261dc83c74cc561ae392a405663f
Author: Carlos O'Donell <carlos@systemhalted.org>
Date: =A0 Thu Oct 20 14:42:56 2011 -0400

=A0 =A0Define DEFAULT_STACK_PERMS.

=A0 =A0Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>

diff --git a/ChangeLog.hppa b/ChangeLog.hppa
index 14abdee..2038513 100644
--- a/ChangeLog.hppa
+++ b/ChangeLog.hppa
@@ -1,5 +1,10 @@
=A02011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>

+ =A0 =A0 =A0 * sysdeps/hppa/stackinfo.h: Update copyright year.
+ =A0 =A0 =A0 Include elf.h and define DEFAULT_STACK_PERMS.
+
+2011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>
+
=A0 =A0 =A0 =A0* sysdeps/unix/sysv/linux/hppa/bits/fcntl.h: Synchronize
=A0 =A0 =A0 =A0with canonical fcntl.h.

diff --git a/sysdeps/hppa/stackinfo.h b/sysdeps/hppa/stackinfo.h
index 318de71..44929c4 100644
--- a/sysdeps/hppa/stackinfo.h
+++ b/sysdeps/hppa/stackinfo.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2011 Free Software Foundation, Inc.
=A0 =A0This file is part of the GNU C Library.

=A0 =A0The GNU C Library is free software; you can redistribute it and/=
or
@@ -22,6 +22,12 @@
=A0#ifndef _STACKINFO_H
=A0#define _STACKINFO_H =A0 1

+#include <elf.h>
+
+/* Default to an executable stack. =A0PF_X can be overridden if PT_GNU=
_STACK is
+ * present, but it is presumed absent. =A0*/
+#define DEFAULT_STACK_PERMS (PF_R|PF_W|PF_X)
+
=A0/* On PA the stack grows up. =A0*/
=A0#define _STACK_GROWS_UP =A0 =A0 =A0 =A01


http://sources.redhat.com/git/gitweb.cgi?p=3Dglibc-ports.git;a=3Dcommit=
diff;h=3D930046be6fedf95d9fce6548bf58ad5e33023d67

commit 930046be6fedf95d9fce6548bf58ad5e33023d67
Author: Carlos O'Donell <carlos@systemhalted.org>
Date: =A0 Thu Oct 20 14:37:02 2011 -0400

=A0 =A0Syncrhonize fcntl.h with canonical source.

=A0 =A0Update fcntl.h to match canonical i386 fcntl.h, but
=A0 =A0update constants to match hppa linux kernel values.

=A0 =A0Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>

diff --git a/ChangeLog.hppa b/ChangeLog.hppa
index 41a779e..14abdee 100644
--- a/ChangeLog.hppa
+++ b/ChangeLog.hppa
@@ -1,5 +1,10 @@
=A02011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>

+ =A0 =A0 =A0 * sysdeps/unix/sysv/linux/hppa/bits/fcntl.h: Synchronize
+ =A0 =A0 =A0 with canonical fcntl.h.
+
+2011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>
+
=A0 =A0 =A0 =A0* sysdeps/hppa/fpu/fegetenv.c: Add hidden alias.
=A0 =A0 =A0 =A0* sysdeps/hppa/fpu/feupdateenv.c: Likewise.
=A0 =A0 =A0 =A0* sysdeps/hppa/fpu/ftestexcept.c: Likewise.
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/fcntl.h
b/sysdeps/unix/sysv/linux/hppa/bits/fcntl.h
index a2c6482..8f42111 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/fcntl.h
@@ -1,5 +1,5 @@
-/* O_*, F_*, FD_* bit values for Linux/HPPA.
- =A0 Copyright (C) 1995,1996,1997,1998,1999,2000,2002,2004
+/* O_*, F_*, FD_* bit values for Linux.
+ =A0 Copyright (C) 1995-1999, 2000, 2002, 2004, 2010, 2011
=A0 =A0Free Software Foundation, Inc.
=A0 =A0This file is part of the GNU C Library.

@@ -29,7 +29,7 @@


=A0/* open/fcntl - O_SYNC is only implemented on blocks devices and on =
files
- =A0 located on an ext2 file system */
+ =A0 located on a few file systems. =A0*/
=A0#define O_ACCMODE =A0 =A0 =A0 =A0 0003
=A0#define O_RDONLY =A0 =A0 =A0 =A0 =A0 =A000
=A0#define O_WRONLY =A0 =A0 =A0 =A0 =A0 =A001
@@ -46,13 +46,15 @@
=A0#define O_ASYNC =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 020000
=A0#define O_BLKSEEK =A0 =A0 =A000000100 /* HPUX only */

-#ifdef __USE_GNU
-# define O_DIRECT =A0 =A0 =A0000040000 /* Direct disk access. =A0*/
+#ifdef __USE_XOPEN2K8
=A0# define O_DIRECTORY =A0 000010000 /* Must be a directory. =A0*/
=A0# define O_NOFOLLOW =A0 =A0000000200 /* Do not follow links. =A0*/
-# define O_NOATIME =A0 =A0 004000000 /* Do not set atime. =A0*/
=A0# define O_CLOEXEC =A0 =A0 010000000 /* Set close_on_exec. =A0*/
=A0#endif
+#ifdef __USE_GNU
+# define O_DIRECT =A0 =A0 =A0 040000 /* Direct disk access. =A0*/
+# define O_NOATIME =A0 =A0 004000000 /* Do not set atime. =A0*/
+#endif

=A0/* For now Linux has synchronisity options for data and read operati=
ons.
=A0 =A0We define the symbols here but let them do the same as O_SYNC si=
nce
@@ -85,7 +87,7 @@
=A0#define F_SETLK64 =A0 =A0 =A09 =A0 =A0 =A0 /* Set record locking inf=
o (non-blocking). =A0*/
=A0#define F_SETLKW64 =A0 =A0 10 =A0 =A0 =A0/* Set record locking info =
(blocking). =A0*/

-#if defined __USE_BSD || defined __USE_UNIX98
+#if defined __USE_BSD || defined __USE_UNIX98 || defined __USE_XOPEN2K=
8
=A0# define F_GETOWN =A0 =A0 =A011 =A0 =A0 =A0/* Get owner of socket (r=
eceiver of SIGIO). =A0*/
=A0# define F_SETOWN =A0 =A0 =A012 =A0 =A0 =A0/* Set owner of socket (r=
eceiver of SIGIO). =A0*/
=A0#endif
@@ -101,6 +103,10 @@
=A0# define F_SETLEASE =A0 =A01024 =A0 =A0/* Set a lease. =A0*/
=A0# define F_GETLEASE =A0 =A01025 =A0 =A0/* Enquire what lease is acti=
ve. =A0*/
=A0# define F_NOTIFY =A0 =A0 =A01026 =A0 =A0/* Request notfications on =
a directory. =A0*/
+# define F_SETPIPE_SZ =A01031 =A0 =A0/* Set pipe page size array. =A0*=
/
+# define F_GETPIPE_SZ =A01032 =A0 =A0/* Set pipe page size array. =A0*=
/
+#endif
+#ifdef __USE_XOPEN2K8
=A0# define F_DUPFD_CLOEXEC 1030 =A0/* Duplicate file descriptor with
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 clo=
se-on-exit set. =A0*/
=A0#endif
@@ -227,6 +233,19 @@ struct f_owner_ex
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 we splice from/to). =A0*/
=A0# define SPLICE_F_MORE =A0 =A0 =A0 =A0 4 =A0 =A0 =A0 /* Expect more =
data. =A0*/
=A0# define SPLICE_F_GIFT =A0 =A0 =A0 =A0 8 =A0 =A0 =A0 /* Pages passed=
 in are a gift. =A0*/
+
+
+/* File handle structure. =A0*/
+struct file_handle
+{
+ =A0unsigned int handle_bytes;
+ =A0int handle_type;
+ =A0/* File identifier. =A0*/
+ =A0unsigned char f_handle[0];
+};
+
+/* Maximum handle size (for now). =A0*/
+# define MAX_HANDLE_SZ 128
=A0#endif

=A0__BEGIN_DECLS
@@ -243,20 +262,32 @@ extern int sync_file_range (int __fd, __off64_t
__offset, __off64_t __count,
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0unsigned int __f=
lags);


-/* Splice address range into a pipe. =A0*/
+/* Splice address range into a pipe.
+
+ =A0 This function is a possible cancellation point and therefore not
+ =A0 marked with __THROW. =A0*/
=A0extern ssize_t vmsplice (int __fdout, const struct iovec *__iov,
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 size_t __count, unsigne=
d int __flags);

-/* Splice two files together. =A0*/
+/* Splice two files together.
+
+ =A0 This function is a possible cancellation point and therefore not
+ =A0 marked with __THROW. =A0*/
=A0extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout,
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 __off64_t *__offout, size_t=
 __len,
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 unsigned int __flags);

-/* In-kernel implementation of tee for pipe buffers. =A0*/
+/* In-kernel implementation of tee for pipe buffers.
+
+ =A0 This function is a possible cancellation point and therefore not
+ =A0 marked with __THROW. =A0*/
=A0extern ssize_t tee (int __fdin, int __fdout, size_t __len,
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0unsigned int __flags);

-/* Reserve storage for the data of the file associated with FD. =A0*/
+/* Reserve storage for the data of the file associated with FD.
+
+ =A0 This function is a possible cancellation point and therefore not
+ =A0 marked with __THROW. =A0*/
=A0# ifndef __USE_FILE_OFFSET64
=A0extern int fallocate (int __fd, int __mode, __off_t __offset, __off_=
t __len);
=A0# else
@@ -273,6 +304,19 @@ extern int fallocate64 (int __fd, int __mode,
__off64_t __offset,
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0__off64_t __len);
=A0# endif

+
+/* Map file name to file handle. =A0*/
+extern int name_to_handle_at (int __dfd, const char *__name,
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 struct file_h=
andle *__handle, int *__mnt_id,
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 int __flags) =
__THROW;
+
+/* Open file using the file handle.
+
+ =A0 This function is a possible cancellation point and therefore not
+ =A0 marked with __THROW. =A0*/
+extern int open_by_handle_at (int __mountdirfd, struct file_handle *__=
handle,
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 int __flags);
+
=A0#endif

=A0__END_DECLS

http://sources.redhat.com/git/gitweb.cgi?p=3Dglibc-ports.git;a=3Dcommit=
diff;h=3D5ce24e77ed89f2a6c11175e3798050246dfd9c04

commit 5ce24e77ed89f2a6c11175e3798050246dfd9c04
Author: Carlos O'Donell <carlos@systemhalted.org>
Date: =A0 Thu Oct 20 14:30:56 2011 -0400

=A0 =A0Add hidden aliases for fenv.h functions.

=A0 =A0Add hidden aliases for fegetenv, feupdateenv, and
=A0 =A0ftestexcept. This avoids libc needing to go through
=A0 =A0the PLT for these functions.

=A0 =A0Signed-off-by: Carlos O'Donell <carlos@codesourcery.com>

diff --git a/ChangeLog.hppa b/ChangeLog.hppa
index 91ddf8d..41a779e 100644
--- a/ChangeLog.hppa
+++ b/ChangeLog.hppa
@@ -1,5 +1,11 @@
=A02011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>

+ =A0 =A0 =A0 * sysdeps/hppa/fpu/fegetenv.c: Add hidden alias.
+ =A0 =A0 =A0 * sysdeps/hppa/fpu/feupdateenv.c: Likewise.
+ =A0 =A0 =A0 * sysdeps/hppa/fpu/ftestexcept.c: Likewise.
+
+2011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>
+
=A0 =A0 =A0 =A0* sysdeps/hppa/dl-tls.h: Update copyright year.
=A0 =A0 =A0 =A0Define TLS_DTV_UNALLOCATED.

diff --git a/sysdeps/hppa/fpu/fegetenv.c b/sysdeps/hppa/fpu/fegetenv.c
index fcf5d2d..aab3431 100644
--- a/sysdeps/hppa/fpu/fegetenv.c
+++ b/sysdeps/hppa/fpu/fegetenv.c
@@ -1,5 +1,5 @@
=A0/* Store current floating-point environment.
- =A0 Copyright (C) 2000 Free Software Foundation, Inc.
+ =A0 Copyright (C) 2000, 2011 Free Software Foundation, Inc.
=A0 =A0This file is part of the GNU C Library.
=A0 =A0Contributed by David Huggins-Daines <dhd@debian.org>, 2000

@@ -33,3 +33,4 @@ fegetenv (fenv_t *envp)
=A0 memcpy(envp, buf, sizeof (*envp));
=A0 return 0;
=A0}
+libm_hidden_def (fegetenv)
diff --git a/sysdeps/hppa/fpu/feupdateenv.c b/sysdeps/hppa/fpu/feupdate=
env.c
index 1714006..6e1d5d4 100644
--- a/sysdeps/hppa/fpu/feupdateenv.c
+++ b/sysdeps/hppa/fpu/feupdateenv.c
@@ -1,5 +1,5 @@
=A0/* Install given floating-point environment and raise exceptions.
- =A0 Copyright (C) 2000 Free Software Foundation, Inc.
+ =A0 Copyright (C) 2000, 2011 Free Software Foundation, Inc.
=A0 =A0This file is part of the GNU C Library.
=A0 =A0Contributed by David Huggins-Daines <dhd@debian.org>, 2000

@@ -38,3 +38,4 @@ feupdateenv (const fenv_t *envp)
=A0 /* Success. =A0*/
=A0 return 0;
=A0}
+libm_hidden_def (feupdateenv)
diff --git a/sysdeps/hppa/fpu/ftestexcept.c b/sysdeps/hppa/fpu/ftestexc=
ept.c
index ac6d4b2..c031ffe 100644
--- a/sysdeps/hppa/fpu/ftestexcept.c
+++ b/sysdeps/hppa/fpu/ftestexcept.c
@@ -1,5 +1,5 @@
=A0/* Test exception in current environment.
- =A0 Copyright (C) 2000 Free Software Foundation, Inc.
+ =A0 Copyright (C) 2000, 2011 Free Software Foundation, Inc.
=A0 =A0This file is part of the GNU C Library.
=A0 =A0Contributed by David Huggins-Daines <dhd@debian.org>, 2000

@@ -32,3 +32,4 @@ fetestexcept (int excepts)

=A0 return (s.sw[0] >> 27) & excepts & FE_ALL_EXCEPT;
=A0}
+libm_hidden_def (fetestexcept)

http://sources.redhat.com/git/gitweb.cgi?p=3Dglibc-ports.git;a=3Dcommit=
diff;h=3D2ab0965cb022dfdbd397eb88f96447393b4118b7

commit 2ab0965cb022dfdbd397eb88f96447393b4118b7
Author: Carlos O'Donell <carlos@systemhalted.org>
Date: =A0 Thu Oct 20 14:21:00 2011 -0400

=A0 =A0Define TLS_DTV_UNALLOCATED for hppa.

=A0 =A0Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>

diff --git a/ChangeLog.hppa b/ChangeLog.hppa
index 3913e61..91ddf8d 100644
--- a/ChangeLog.hppa
+++ b/ChangeLog.hppa
@@ -1,5 +1,10 @@
=A02011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>

+ =A0 =A0 =A0 * sysdeps/hppa/dl-tls.h: Update copyright year.
+ =A0 =A0 =A0 Define TLS_DTV_UNALLOCATED.
+
+2011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>
+
=A0 =A0 =A0 =A0* sysdeps/hppa/elf/configure.in: Always test for TLS sup=
port
=A0 =A0 =A0 =A0and error out if missing.
=A0 =A0 =A0 =A0* sysdeps/hppa/elf/configure: Regenerate.
diff --git a/sysdeps/hppa/dl-tls.h b/sysdeps/hppa/dl-tls.h
index 1bc9aae..91c3d44 100644
--- a/sysdeps/hppa/dl-tls.h
+++ b/sysdeps/hppa/dl-tls.h
@@ -1,5 +1,5 @@
=A0/* Thread-local storage handling in the ELF dynamic linker. =A0hppa =
version.
- =A0 Copyright (C) 2003 Free Software Foundation, Inc.
+ =A0 Copyright (C) 2003, 2011 Free Software Foundation, Inc.
=A0 =A0This file is part of the GNU C Library.

=A0 =A0The GNU C Library is free software; you can redistribute it and/=
or
@@ -27,3 +27,6 @@ typedef struct


=A0extern void *__tls_get_addr (tls_index *ti);
+
+/* Value used for dtv entries for which the allocation is delayed. =A0=
*/
+#define TLS_DTV_UNALLOCATED =A0 =A0((void *) -1l)

http://sources.redhat.com/git/gitweb.cgi?p=3Dglibc-ports.git;a=3Dcommit=
diff;h=3D451398f8b87c2a7c6bed7d6650a6cfbca43f9189

commit 451398f8b87c2a7c6bed7d6650a6cfbca43f9189
Author: Carlos O'Donell <carlos@systemhalted.org>
Date: =A0 Thu Oct 20 14:15:51 2011 -0400

=A0 =A0Always test for TLS support.

=A0 =A0Always test for TLS support on hppa and raise
=A0 =A0an error if the TLS support is missing.

=A0 =A0Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>

diff --git a/ChangeLog.hppa b/ChangeLog.hppa
index e37a630..3913e61 100644
--- a/ChangeLog.hppa
+++ b/ChangeLog.hppa
@@ -1,5 +1,12 @@
=A02011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>

+ =A0 =A0 =A0 * sysdeps/hppa/elf/configure.in: Always test for TLS supp=
ort
+ =A0 =A0 =A0 and error out if missing.
+ =A0 =A0 =A0 * sysdeps/hppa/elf/configure: Regenerate.
+ =A0 =A0 =A0 * sysdeps/hppa/configure: Regenerate.
+
+2011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>
+
=A0 =A0 =A0 =A0* sysdeps/hppa/nptl/tls.h: Update copyright year.
=A0 =A0 =A0 =A0Remove HAVE_TLS_SUPPORT check.

diff --git a/sysdeps/hppa/configure b/sysdeps/hppa/configure
index b50ec17..aafc420 100644
--- a/sysdeps/hppa/configure
+++ b/sysdeps/hppa/configure
@@ -1,19 +1,101 @@
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+ =A0return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+ =A0set +e
+ =A0as_fn_set_status $1
+ =A0exit $1
+} # as_fn_exit
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+ =A0 test "X`expr 00001 : '.*\(...\)'`" =3D X001; then
+ =A0as_expr=3Dexpr
+else
+ =A0as_expr=3Dfalse
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" =3D=
 "X/"; then
+ =A0as_basename=3Dbasename
+else
+ =A0as_basename=3Dfalse
+fi
+
+as_me=3D`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+ =A0 =A0 =A0 =A0X"$0" : 'X\(//\)$' \| \
+ =A0 =A0 =A0 =A0X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+ =A0 =A0sed '/^.*\/\([^/][^/]*\)\/*$/{
+ =A0 =A0 =A0 =A0 =A0 s//\1/
+ =A0 =A0 =A0 =A0 =A0 q
+ =A0 =A0 =A0 =A0 }
+ =A0 =A0 =A0 =A0 /^X\/\(\/\/\)$/{
+ =A0 =A0 =A0 =A0 =A0 s//\1/
+ =A0 =A0 =A0 =A0 =A0 q
+ =A0 =A0 =A0 =A0 }
+ =A0 =A0 =A0 =A0 /^X\/\(\/\).*/{
+ =A0 =A0 =A0 =A0 =A0 s//\1/
+ =A0 =A0 =A0 =A0 =A0 q
+ =A0 =A0 =A0 =A0 }
+ =A0 =A0 =A0 =A0 s/.*/./; q'`
+
+
+ =A0as_lineno_1=3D$LINENO as_lineno_1a=3D$LINENO
+ =A0as_lineno_2=3D$LINENO as_lineno_2a=3D$LINENO
+ =A0eval 'test "x$as_lineno_1'$as_run'" !=3D "x$as_lineno_2'$as_run'" =
&&
+ =A0test "x`expr $as_lineno_1'$as_run' + 1`" =3D "x$as_lineno_2'$as_ru=
n'"' || {
+ =A0# Blame Lee E. McMahon (1931-1989) for sed's syntax. =A0:-)
+ =A0sed -n '
+ =A0 =A0p
+ =A0 =A0/[$]LINENO/=3D
+ =A0' <$as_myself |
+ =A0 =A0sed '
+ =A0 =A0 =A0s/[$]LINENO.*/&-/
+ =A0 =A0 =A0t lineno
+ =A0 =A0 =A0b
+ =A0 =A0 =A0:lineno
+ =A0 =A0 =A0N
+ =A0 =A0 =A0:loop
+ =A0 =A0 =A0s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+ =A0 =A0 =A0t loop
+ =A0 =A0 =A0s/-\n.*//
+ =A0 =A0' >$as_me.lineno &&
+ =A0chmod +x "$as_me.lineno" ||
+ =A0 =A0{ $as_echo "$as_me: error: cannot create $as_me.lineno; rerun
with a POSIX shell" >&2; as_fn_exit 1; }
+
+ =A0# Don't try to exec as it changes $[0], causing all sort of proble=
ms
+ =A0# (the dirname of $[0] is not the place where we might find the
+ =A0# original and so on. =A0Autoconf is especially sensitive to this)=
=2E
+ =A0. "./$as_me.lineno"
+ =A0# Exit status is that of the last command.
+ =A0exit
+}
+
=A0# This file is generated from configure.in by Autoconf. =A0DO NOT ED=
IT!

-{ echo "$as_me:$LINENO: checking for assembler line separator" >&5
-echo $ECHO_N "checking for assembler line separator... $ECHO_C" >&6; }
-if test "${libc_cv_asm_line_sep+set}" =3D set; then
- =A0echo $ECHO_N "(cached) $ECHO_C" >&6
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for assembler line
separator" >&5
+$as_echo_n "checking for assembler line separator... " >&6; }
+if test "${libc_cv_asm_line_sep+set}" =3D set; then :
+ =A0$as_echo_n "(cached) " >&6
=A0else
=A0 cat > conftest.s <<EOF
=A0nop ; is_old_puffin
=A0EOF
=A0if { ac_try=3D'${CC-cc} -c $ASFLAGS conftest.s 1>&5'
- =A0{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ =A0{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >=
&5
=A0 (eval $ac_try) 2>&5
=A0 ac_status=3D$?
- =A0echo "$as_me:$LINENO: \$? =3D $ac_status" >&5
- =A0(exit $ac_status); }; }; then
+ =A0$as_echo "$as_me:${as_lineno-$LINENO}: \$? =3D $ac_status" >&5
+ =A0test $ac_status =3D 0; }; }; then
=A0 libc_cv_asm_line_sep=3D'!'
=A0else
=A0 if test -z "$enable_hacker_mode"; then
@@ -25,8 +107,8 @@ else
=A0fi
=A0rm -f conftest*
=A0fi
-{ echo "$as_me:$LINENO: result: $libc_cv_asm_line_sep" >&5
-echo "${ECHO_T}$libc_cv_asm_line_sep" >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_line_sep=
" >&5
+$as_echo "$libc_cv_asm_line_sep" >&6; }
=A0cat >>confdefs.h <<_ACEOF
=A0#define ASM_LINE_SEP $libc_cv_asm_line_sep
=A0_ACEOF
diff --git a/sysdeps/hppa/elf/configure b/sysdeps/hppa/elf/configure
old mode 100644
new mode 100755
index ba69990..4df64a8
--- a/sysdeps/hppa/elf/configure
+++ b/sysdeps/hppa/elf/configure
@@ -1,13 +1,94 @@
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+ =A0return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+ =A0set +e
+ =A0as_fn_set_status $1
+ =A0exit $1
+} # as_fn_exit
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+ =A0 test "X`expr 00001 : '.*\(...\)'`" =3D X001; then
+ =A0as_expr=3Dexpr
+else
+ =A0as_expr=3Dfalse
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" =3D=
 "X/"; then
+ =A0as_basename=3Dbasename
+else
+ =A0as_basename=3Dfalse
+fi
+
+as_me=3D`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+ =A0 =A0 =A0 =A0X"$0" : 'X\(//\)$' \| \
+ =A0 =A0 =A0 =A0X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+ =A0 =A0sed '/^.*\/\([^/][^/]*\)\/*$/{
+ =A0 =A0 =A0 =A0 =A0 s//\1/
+ =A0 =A0 =A0 =A0 =A0 q
+ =A0 =A0 =A0 =A0 }
+ =A0 =A0 =A0 =A0 /^X\/\(\/\/\)$/{
+ =A0 =A0 =A0 =A0 =A0 s//\1/
+ =A0 =A0 =A0 =A0 =A0 q
+ =A0 =A0 =A0 =A0 }
+ =A0 =A0 =A0 =A0 /^X\/\(\/\).*/{
+ =A0 =A0 =A0 =A0 =A0 s//\1/
+ =A0 =A0 =A0 =A0 =A0 q
+ =A0 =A0 =A0 =A0 }
+ =A0 =A0 =A0 =A0 s/.*/./; q'`
+
+
+ =A0as_lineno_1=3D$LINENO as_lineno_1a=3D$LINENO
+ =A0as_lineno_2=3D$LINENO as_lineno_2a=3D$LINENO
+ =A0eval 'test "x$as_lineno_1'$as_run'" !=3D "x$as_lineno_2'$as_run'" =
&&
+ =A0test "x`expr $as_lineno_1'$as_run' + 1`" =3D "x$as_lineno_2'$as_ru=
n'"' || {
+ =A0# Blame Lee E. McMahon (1931-1989) for sed's syntax. =A0:-)
+ =A0sed -n '
+ =A0 =A0p
+ =A0 =A0/[$]LINENO/=3D
+ =A0' <$as_myself |
+ =A0 =A0sed '
+ =A0 =A0 =A0s/[$]LINENO.*/&-/
+ =A0 =A0 =A0t lineno
+ =A0 =A0 =A0b
+ =A0 =A0 =A0:lineno
+ =A0 =A0 =A0N
+ =A0 =A0 =A0:loop
+ =A0 =A0 =A0s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+ =A0 =A0 =A0t loop
+ =A0 =A0 =A0s/-\n.*//
+ =A0 =A0' >$as_me.lineno &&
+ =A0chmod +x "$as_me.lineno" ||
+ =A0 =A0{ $as_echo "$as_me: error: cannot create $as_me.lineno; rerun
with a POSIX shell" >&2; as_fn_exit 1; }
+
+ =A0# Don't try to exec as it changes $[0], causing all sort of proble=
ms
+ =A0# (the dirname of $[0] is not the place where we might find the
+ =A0# original and so on. =A0Autoconf is especially sensitive to this)=
=2E
+ =A0. "./$as_me.lineno"
+ =A0# Exit status is that of the last command.
+ =A0exit
+}
+
=A0# This file is generated from configure.in by Autoconf. =A0DO NOT ED=
IT!
=A0# Local configure fragment for sysdeps/hppa/elf.

-if test "$usetls" !=3D no; then
=A0# Check for support of thread-local storage handling in assembler an=
d
=A0# linker.
-{ echo "$as_me:$LINENO: checking for hppa TLS support" >&5
-echo $ECHO_N "checking for hppa TLS support... $ECHO_C" >&6; }
-if test "${libc_cv_hppa_tls+set}" =3D set; then
- =A0echo $ECHO_N "(cached) $ECHO_C" >&6
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for hppa TLS support=
" >&5
+$as_echo_n "checking for hppa TLS support... " >&6; }
+if test "${libc_cv_hppa_tls+set}" =3D set; then :
+ =A0$as_echo_n "(cached) " >&6
=A0else
=A0 cat > conftest.s <<\EOF
=A0; Setup tls data
@@ -41,23 +122,19 @@ test3:
=A0; Done all the TLS tests.
=A0EOF
=A0if { ac_try=3D'${CC-cc} -c $CFLAGS conftest.s 1>&5'
- =A0{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ =A0{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >=
&5
=A0 (eval $ac_try) 2>&5
=A0 ac_status=3D$?
- =A0echo "$as_me:$LINENO: \$? =3D $ac_status" >&5
- =A0(exit $ac_status); }; }; then
+ =A0$as_echo "$as_me:${as_lineno-$LINENO}: \$? =3D $ac_status" >&5
+ =A0test $ac_status =3D 0; }; }; then
=A0 libc_cv_hppa_tls=3Dyes
=A0else
=A0 libc_cv_hppa_tls=3Dno
=A0fi
=A0rm -f conftest*
=A0fi
-{ echo "$as_me:$LINENO: result: $libc_cv_hppa_tls" >&5
-echo "${ECHO_T}$libc_cv_hppa_tls" >&6; }
-if test $libc_cv_hppa_tls =3D yes; then
- =A0cat >>confdefs.h <<\_ACEOF
-#define HAVE_TLS_SUPPORT 1
-_ACEOF
-
-fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_hppa_tls" >&=
5
+$as_echo "$libc_cv_hppa_tls" >&6; }
+if test $libc_cv_hppa_tls =3D no; then
+ =A0as_fn_error $? "the assembler must support TLS" "$LINENO" 5
=A0fi
diff --git a/sysdeps/hppa/elf/configure.in b/sysdeps/hppa/elf/configure=
=2Ein
index 1b70a5b..e31c880 100644
--- a/sysdeps/hppa/elf/configure.in
+++ b/sysdeps/hppa/elf/configure.in
@@ -1,7 +1,6 @@
=A0GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
=A0# Local configure fragment for sysdeps/hppa/elf.

-if test "$usetls" !=3D no; then
=A0# Check for support of thread-local storage handling in assembler an=
d
=A0# linker.
=A0AC_CACHE_CHECK(for hppa TLS support, libc_cv_hppa_tls, [dnl
@@ -43,7 +42,6 @@ else
=A0 libc_cv_hppa_tls=3Dno
=A0fi
=A0rm -f conftest*])
-if test $libc_cv_hppa_tls =3D yes; then
- =A0AC_DEFINE(HAVE_TLS_SUPPORT)
-fi
+if test $libc_cv_hppa_tls =3D no; then
+ =A0AC_MSG_ERROR([the assembler must support TLS])
=A0fi

http://sources.redhat.com/git/gitweb.cgi?p=3Dglibc-ports.git;a=3Dcommit=
diff;h=3Dab653f4dbe37d6244057f3f2ab33078357b6d708

commit ab653f4dbe37d6244057f3f2ab33078357b6d708
Author: Carlos O'Donell <carlos@systemhalted.org>
Date: =A0 Thu Oct 20 11:42:02 2011 -0400

=A0 =A0Remove check for HAVE_TLS_SUPPORT

=A0 =A0TLS support is now required, remove checks.

=A0 =A0Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>

diff --git a/ChangeLog.hppa b/ChangeLog.hppa
index f19c693..e37a630 100644
--- a/ChangeLog.hppa
+++ b/ChangeLog.hppa
@@ -1,4 +1,9 @@
-2011-10-17 =A0Guy Martin <gmsoft@tuxicoman.be>
+2011-10-20 =A0Carlos O'Donell =A0<carlos@systemhalted.org>
+
+ =A0 =A0 =A0 * sysdeps/hppa/nptl/tls.h: Update copyright year.
+ =A0 =A0 =A0 Remove HAVE_TLS_SUPPORT check.
+
+2011-10-17 =A0Guy Martin =A0<gmsoft@tuxicoman.be>

=A0 =A0 =A0 =A0* sysdeps/unix/sysv/linux/hppa/sys/epoll.h
=A0 =A0 =A0 =A0Fix EPOLL_CLOEXEC and EPOLL_NONBLOCK to match kernel def=
inition.
diff --git a/sysdeps/hppa/nptl/tls.h b/sysdeps/hppa/nptl/tls.h
index 389cbb9..8af7504 100644
--- a/sysdeps/hppa/nptl/tls.h
+++ b/sysdeps/hppa/nptl/tls.h
@@ -1,5 +1,5 @@
=A0/* Definition for thread-local data handling. =A0NPTL/hppa version.
- =A0 Copyright (C) 2005, 2007, 2010 Free Software Foundation, Inc.
+ =A0 Copyright (C) 2005, 2007, 2010, 2011 Free Software Foundation, In=
c.
=A0 =A0This file is part of the GNU C Library.

=A0 =A0The GNU C Library is free software; you can redistribute it and/=
or
@@ -42,12 +42,6 @@ typedef union dtv
=A0# include <tcb-offsets.h>
=A0#endif /* __ASSEMBLER__ */

-
-/* We require TLS support in the tools. =A0*/
-#ifndef HAVE_TLS_SUPPORT
-# error "TLS support is required."
-#endif
-
=A0/* Signal that TLS support is available. =A0*/
=A0#define USE_TLS =A0 =A0 =A0 =A01


-----------------------------------------------------------------------

Summary of changes:
=A0ChangeLog.hppa =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 | =A0 66 ++++++-
=A0sysdeps/hppa/configure =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 | =A0100 ++++++++-
=A0sysdeps/hppa/dl-tls.h =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0| =A0 =A05 +-
=A0sysdeps/hppa/elf/configure =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 | =A0109 ++++++++--
=A0sysdeps/hppa/elf/configure.in =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0| =A0 =A06 +-
=A0sysdeps/hppa/fpu/fegetenv.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0| =A0 =A03 +-
=A0sysdeps/hppa/fpu/feupdateenv.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 | =A0 =A03 +-
=A0sysdeps/hppa/fpu/ftestexcept.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 | =A0 =A03 +-
=A0sysdeps/hppa/linuxthreads/pspinlock.c =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0=
 82 -------
=A0sysdeps/hppa/linuxthreads/pt-machine.h =A0 =A0 =A0 =A0 =A0 =A0 | =A0=
134 -----------
=A0sysdeps/hppa/linuxthreads/tls.h =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0| =A0163 -------------
=A0sysdeps/hppa/nptl/tls.h =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0| =A0 =A08 +-
=A0sysdeps/hppa/stackinfo.h =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 | =A0 =A08 +-
=A0sysdeps/unix/sysv/linux/hppa/bits/fcntl.h =A0 =A0 =A0 =A0 =A0| =A0 6=
6 +++++-
=A0.../unix/sysv/linux/hppa/linuxthreads/aio_cancel.c | =A0 33 ---
=A0.../sysv/linux/hppa/linuxthreads/bits/initspin.h =A0 | =A0 41 ----
=A0.../linux/hppa/linuxthreads/bits/pthreadtypes.h =A0 =A0| =A0159 ----=
---------
=A0.../sysv/linux/hppa/linuxthreads/malloc-machine.h =A0| =A0 73 ------
=A0.../sysv/linux/hppa/linuxthreads/pt-initfini.c =A0 =A0 | =A0109 ----=
-----
=A0.../sysv/linux/hppa/linuxthreads/sysdep-cancel.h =A0 | =A0242 ------=
--------------
=A0sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h =A0| =A0 84 ++++++=
--
=A021 files changed, 394 insertions(+), 1103 deletions(-)
=A0mode change 100644 =3D> 100755 sysdeps/hppa/elf/configure
=A0delete mode 100644 sysdeps/hppa/linuxthreads/pspinlock.c
=A0delete mode 100644 sysdeps/hppa/linuxthreads/pt-machine.h
=A0delete mode 100644 sysdeps/hppa/linuxthreads/tls.h
=A0delete mode 100644 sysdeps/unix/sysv/linux/hppa/linuxthreads/aio_can=
cel.c
=A0delete mode 100644 sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/in=
itspin.h
=A0delete mode 100644
sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/pthreadtypes.h
=A0delete mode 100644 sysdeps/unix/sysv/linux/hppa/linuxthreads/malloc-=
machine.h
=A0delete mode 100644 sysdeps/unix/sysv/linux/hppa/linuxthreads/pt-init=
fini.c
=A0delete mode 100644 sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-=
cancel.h


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From - Thu Nov 08 21:07:39 2018
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Subject: Re: [PATCH] parisc: futex: Use same lock set as lws calls
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On 10/21/2011 10:49 AM, Carlos O'Donell wrote:
> On Wed, Oct 19, 2011 at 9:47 PM, John David Anglin<dave.anglin@bell.net>  wrote:
>> I looked at this a bit.  The problem is legitimize_tls_address doesn't work
>> properly. First, GCC doesn't know that the libcall needs r26 and ret0 when the
>> __thread variable is an argument to a call.  Secondly, the implementation of __tls_get_addr
>> clobbers some other call clobbered registers.  I'm thinking the glibc implementation
>> might need to be in assembly language so that the clobbered registers are limited (i.e.,
>> it needs to save registers).   This all seems really ugly...
>>
>> The issues occur in generating PIC code.
> Yes, __tls_get_addr is a normal C function and follows normal function
> register usage.
Yes.  The issue here is expand_call doesn't appear to be aware that 
loading the
address of a __thread variable may require a call.  Thus, it just emits 
an insn to
load r26.  This load is dead because r26 is reloaded for the call to 
__tls_get_addr.

The first argument for the call needs to be saved to a temp, and then 
r26 needs
to be loaded just before the actual call.  This is works fine for normal 
calls.
>
> Why does __tls_get_addr need to be a special function?
>
> Almost all the targets in glibc-ports have C versions of __tls_get_addr.
>
> For example I notice that on Alpha the call to __tls_get_addr is *not*
> done via a emit_library_call_value, instead they use some emit_insn,
> emit_libcall_block and use_reg.
use_reg won't help.  This is attached to the call insn and only comes 
into play
during register allocation.  The problem occurs during rtl expansion.
>
> So it looks like they tamper with the register usage via use_reg
> before the call to __tls_get_addr?
>
> Another example is Sparc which also uses a custom sequence and
> manipulates the used registers.
sparc64 tls support is also broken...  See,
http://www.loria.fr/~zimmerma/software/compilerbugs.html

>
> I think our legitimize_tls_address needs to be rewritten to match
> something like what alpha or sparc has, otherwise we are going to run
> into trouble trying to get emit_library_call_value to work correctly.
>
>

Dave

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From - Thu Nov 08 21:07:39 2018
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On 10/21/2011 1:42 PM, John David Anglin wrote:
> Yes.  The issue here is expand_call doesn't appear to be aware that 
> loading the
> address of a __thread variable may require a call.  Thus, it just 
> emits an insn to
> load r26.  This load is dead because r26 is reloaded for the call to 
> __tls_get_addr.
It appears this may be caused by treating TLS symbols as legitimate 
constants.

Dave

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From - Thu Nov 08 21:07:39 2018
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On Fri, Oct 21, 2011 at 2:11 PM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
> On 10/21/2011 1:42 PM, John David Anglin wrote:
>>
>> Yes. =A0The issue here is expand_call doesn't appear to be aware tha=
t
>> loading the
>> address of a __thread variable may require a call. =A0Thus, it just =
emits an
>> insn to
>> load r26. =A0This load is dead because r26 is reloaded for the call =
to
>> __tls_get_addr.
>
> It appears this may be caused by treating TLS symbols as legitimate
> constants.

Which they are not in any of the *_DYNAMIC modes, because the dynamic
linker is involved in their placement.

Cheers,
Carlos.
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Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).

So now this flag is a NOOP and can be removed.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
---
 arch/parisc/include/asm/floppy.h |    4 ++--
 arch/parisc/kernel/irq.c         |    4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/include/asm/floppy.h b/arch/parisc/include/asm/floppy.h
index 4ca69f5..f84ff12 100644
--- a/arch/parisc/include/asm/floppy.h
+++ b/arch/parisc/include/asm/floppy.h
@@ -157,10 +157,10 @@ static int fd_request_irq(void)
 {
 	if(can_use_virtual_dma)
 		return request_irq(FLOPPY_IRQ, floppy_hardint,
-				   IRQF_DISABLED, "floppy", NULL);
+				   0, "floppy", NULL);
 	else
 		return request_irq(FLOPPY_IRQ, floppy_interrupt,
-				   IRQF_DISABLED, "floppy", NULL);
+				   0, "floppy", NULL);
 }
 
 static unsigned long dma_mem_alloc(unsigned long size)
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..420676b 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
-	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+	.flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
-	.flags = IRQF_DISABLED | IRQF_PERCPU,
+	.flags = IRQF_PERCPU,
 };
 #endif
 
-- 
1.7.1

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From - Thu Nov 08 21:07:40 2018
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From: Yong Zhang <yong.zhang0@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 36/49] dirvers/parisc: irq: Remove IRQF_DISABLED
Date: Sat, 22 Oct 2011 17:56:48 +0800
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Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).

So now this flag is a NOOP and can be removed.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
---
 drivers/parisc/superio.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index e3b76d4..5e6fd94 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -274,7 +274,7 @@ superio_init(struct pci_dev *pcidev)
 	else
 		printk(KERN_ERR PFX "USB regulator not initialized!\n");
 
-	if (request_irq(pdev->irq, superio_interrupt, IRQF_DISABLED,
+	if (request_irq(pdev->irq, superio_interrupt, 0,
 			SUPERIO, (void *)sio)) {
 
 		printk(KERN_ERR PFX "could not get irq\n");
-- 
1.7.1

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From - Thu Nov 08 21:07:40 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot failure with 3.0.3: swapper (pid 0): Protection id trap
 (code 7)
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> On Wed, 2011-10-12 at 09:26 +0200, Rolf Eike Beer wrote:
>> >> On Tue, Sep 06, 2011 at 09:15:07AM -0500, James Bottomley wrote:
>> >>> It's possible that one of the flushing patches is to blame; I just
>> >>> can't
>> >>> see how.  Most likely is
>> >>>
>> >>> commit d7dd2ff11b7fcd425aca5a875983c862d19a67ae
>> >>> Author: James Bottomley <James.Bottomley@HansenPartnership.com>
>> >>> Date:   Thu Apr 14 18:25:21 2011 -0500
>> >>>
>> >>>     [PARISC] only make executable areas executable
>> >>>
>> >>
>> >> This looks promising, the second commit doesn't touch the
>> flush_*_local,
>> >> so I think it's probably not a candidate.
>> >>
>> >> Rolf, can you revert d7dd2ff11b7fcd425aca5a875983c862d19a67ae and see
>> >> what happens?
>> >
>> > What happens is that the system boots and from a first glance seems to
>> > work fine.
>>
>> James, are you going to revert that commit? Or am I the only one that is
>> seeing this?
>
> You're the only one whose seeing this.  It works 32 bit on my C360, so I
> really need to know why and I don't seem to have a means to debug if
> it's C3600 only.  If I revert that commit, we start segfaulting again.

Ok, I think I found the culprit. This change to the .config makes my
machine  boot:

--- kernel-config-parisc-3.1.0  2011-10-26 14:56:42.418487152 +0200
+++ config      2011-10-26 14:56:29.583485965 +0200
@@ -16,6 +16,7 @@
 CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_NEED_SG_DMA_LENGTH=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+CONFIG_CONSTRUCTORS=y
 CONFIG_HAVE_IRQ_WORK=y
 CONFIG_IRQ_WORK=y

@@ -114,6 +115,7 @@
 #
 # GCOV-based kernel profiling
 #
+CONFIG_GCOV_KERNEL=y
 # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
 CONFIG_SLABINFO=y
 CONFIG_RT_MUTEXES=y
@@ -1524,7 +1528,7 @@
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_STRIP_ASM_SYMS=y
 # CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
+CONFIG_DEBUG_FS=y
 CONFIG_HEADERS_CHECK=y
 # CONFIG_DEBUG_SECTION_MISMATCH is not set
 CONFIG_DEBUG_KERNEL=y

Without this change I can reproduce the problem also on 3.1. Config follow.

Eike

CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_HAVE_IRQ_WORK=y
CONFIG_IRQ_WORK=y
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
CONFIG_LOCALVERSION=""
CONFIG_DEFAULT_HOSTNAME="voyager.sf-tec.de"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_FHANDLE=y
CONFIG_HAVE_GENERIC_HARDIRQS=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_TINY_RCU=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
CONFIG_NAMESPACES=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PERF_EVENTS=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
CONFIG_SLAB=y
CONFIG_HAVE_OPROFILE=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_BLOCK=y
CONFIG_LBDAF=y
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_DEFAULT_CFQ=y
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_INLINE_SPIN_UNLOCK=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_HZ_250=y
CONFIG_HZ=250
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_NEED_PER_CPU_KM=y
CONFIG_CLEANCACHE=y
CONFIG_PCI=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
CONFIG_HOTPLUG_PCI=m
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y
CONFIG_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=y
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_IPV6=m
CONFIG_INET6_IPCOMP=m
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_NETFILTER=y
CONFIG_NETFILTER_DEBUG=y
CONFIG_NET_PKTGEN=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_UMEM=m
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_MISC_DEVICES=y
CONFIG_HAVE_IDE=y
CONFIG_IDE=y
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_ATAPI=y
CONFIG_IDE_GD=y
CONFIG_IDE_GD_ATA=y
CONFIG_BLK_DEV_IDECD=m
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
CONFIG_IDE_PROC_FS=y
CONFIG_BLK_DEV_IDEDMA_SFF=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_BLK_DEV_NS87415=m
CONFIG_BLK_DEV_SIIMAGE=m
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_SCSI_MOD=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_PROC_FS=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=y
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_WAIT_SCAN=m
CONFIG_SCSI_SPI_ATTRS=y
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_LOWLEVEL=y
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
CONFIG_ATA=m
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_SATA_PMP=y
CONFIG_ATA_SFF=y
CONFIG_ATA_BMDMA=y
CONFIG_SATA_VIA=m
CONFIG_PATA_VIA=m
CONFIG_MD=y
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
CONFIG_DM_UEVENT=y
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_BONDING=m
CONFIG_TUN=m
CONFIG_MII=m
CONFIG_NET_ETHERNET=y
CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_DE2104X_DSL=0
CONFIG_TULIP=y
CONFIG_TULIP_MMIO=y
CONFIG_NET_PCI=y
CONFIG_INPUT=y
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1600
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1200
CONFIG_INPUT_KEYBOARD=y
CONFIG_INPUT_MOUSE=y
CONFIG_SERIO=m
CONFIG_SERIO_SERPORT=m
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=13
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_RAW_DRIVER=y
CONFIG_MAX_RAW_DEVS=256
CONFIG_DEVPORT=y
CONFIG_SSB_POSSIBLE=y
CONFIG_BCMA_POSSIBLE=y
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=1
CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_STI=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_STI_CONSOLE=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_LOGO=y
CONFIG_LOGO_PARISC_CLUT224=y
CONFIG_SOUND=y
CONFIG_SOUND_OSS_CORE=y
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
CONFIG_SND_VMASTER=y
CONFIG_SND_AC97_CODEC=y
CONFIG_SND_DRIVERS=y
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=y
CONFIG_AC97_BUS=y
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
CONFIG_USB_HID=y
CONFIG_USB_HIDDEV=y
CONFIG_HID_A4TECH=y
CONFIG_HID_APPLE=y
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
CONFIG_HID_CYPRESS=y
CONFIG_HID_EZKEY=y
CONFIG_HID_KYE=y
CONFIG_HID_KENSINGTON=y
CONFIG_HID_LOGITECH=y
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_STORAGE=m
CONFIG_USB_STORAGE_USBAT=m
CONFIG_USB_STORAGE_SDDR09=m
CONFIG_USB_STORAGE_SDDR55=m
CONFIG_USB_STORAGE_JUMPSHOT=m
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_DRV_GENERIC=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_EXT4_FS=m
CONFIG_EXT4_FS_XATTR=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_JBD=y
CONFIG_JBD2=m
CONFIG_FS_MBCACHE=m
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_FAT_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_MISC_FILESYSTEMS=y
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_UTF8=m
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
CONFIG_STRIP_ASM_SYMS=y
CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
CONFIG_SCHED_DEBUG=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_RODATA=y
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y
CONFIG_CRYPTO_ALGAPI=m
CONFIG_CRYPTO_ALGAPI2=m
CONFIG_CRYPTO_AEAD2=m
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=m
CONFIG_CRYPTO_HASH=m
CONFIG_CRYPTO_HASH2=m
CONFIG_CRYPTO_RNG2=m
CONFIG_CRYPTO_PCOMP2=m
CONFIG_CRYPTO_MANAGER=m
CONFIG_CRYPTO_MANAGER2=m
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_WORKQUEUE=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_MD5=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_DEFLATE=m
CONFIG_BITREVERSE=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
CONFIG_CRC32=y
CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y
CONFIG_GENERIC_ATOMIC64=y

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From - Thu Nov 08 21:07:40 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HPMC running CMake Nightly tests
Date: Wed, 26 Oct 2011 10:16:42 -0600
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On Fri, Oct 21, 2011 at 10:26:57AM +0200, Rolf Eike Beer wrote:
> Ok, I have another one. I removed all those parts that did not show any
> errors or where the register contents were all zeros.
> 
> Timestamp =
>   Thu Oct  20 09:05:52 GMT 2011    (20:11:10:20:09:05:52)
...
> System Responder Address     = 0x000000fff4008040

MMIO Address that wasn't responding.  Note that it's 40 bits.
The 32-bit address used by OS is "F-extended" by HW (CPU I think).


> System Requestor Address     = 0xfffffffffffa0000

Address of CPU that was requesting the MMIO address.

This is enough info to identify what I believe is the "victim".
It's not likely to be the root cause.

Historically, this type of HPMC happens because a device
attempted to DMA to an unmapped address and the IOMMU
went "fatal" (stopped routing traffic to PCI busses).


> '9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:
> 
> Check Summary                = 0xcb81041008000000
> Available Memory             = 0x0000000020000000
> CPU Diagnose Register 2      = 0x0301000000000004
> CPU Status Register 0        = 0x2420c20000000000
> CPU Status Register 1        = 0x8002000000000000
> SADD LOG                     = 0x4b023fd9e8190951
> Read Short LOG               = 0xc1af00fff4008040
> ERROR_STATUS                 = 0x0000000000100010
> MEM_ADDR                     = 0x000001ff3fffffff
> MEM_SYND                     = 0x0000000000000000
> MEM_ADDR_CORR                = 0x000001ff3fffffff
> MEM_SYND_CORR                = 0x0000000000000000
> RUN_DATA_HIGH                = 0xc1bff0fffed08040
> RUN_DATA_LOW                 = 0xc1bff0fffed08040
> RUN_CTRL                     = 0x0000021c00001418
> RUN_ADDR                     = 0xc1bff0fffed08040
> System Responder Path        = 0x00ffffff0a000c00

This part could yield another clue if we had the magic decoder ring. :(


> HPMC PIM Analysis Information:
> 
> Timestamp =
>   Thu Oct  20 09:05:52 GMT 2011    (20:11:10:20:09:05:52)
> 
> 
> '9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:
> 
> A Data I/O Fetch Timeout occurred while CPU 0 was
> requesting information from a device at the path 10/0/12/0 (built-in PCI
> device).

Doing "in io" at the BCH prompt should list all devices including 10/0/12/0
Google search is failing to find a posting with that content. :/


> '9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:
> 
>  Rope     Word1        Word2            Word3
> ------ ------------ ------------
>    0    0x00000000   0x0e0cc2a9   0x00000000fed30048
>    1    0x00000000   0x1e0cc009   0x00000000fed32048
>    2    ----------   0x2e0cc009   ------------------
>    3    ----------   0x3e0cc009   ------------------
>    4    0x00000000   0x4e0cc009   0x00000000fed38048
>    5    ----------   0x5e0cc009   ------------------
>    6    0x00000000   0x6e0cc009   0x00000000fed3c048
>    7    ----------   0x7e0cc009   ------------------

"HP c3750 | hp workstation c3700 and c3650 - service handbook" in a 
couple of different places says:
 "I/O Error log word 3 contains the error address"

I'm assuming this is just the last accessed address by that PCI bus.

cheers,
grant
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From - Thu Nov 08 21:07:40 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: HPMC on network load (was: HPMC running CMake Nightly tests)
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Grant Grundler write

> > HPMC PIM Analysis Information:
> > 
> > Timestamp =
> > 
> >   Thu Oct  20 09:05:52 GMT 2011    (20:11:10:20:09:05:52)
> > 
> > '9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304
> > bytes:
> > 
> > A Data I/O Fetch Timeout occurred while CPU 0 was
> > requesting information from a device at the path 10/0/12/0 (built-in PCI
> > device).
> 
> Doing "in io" at the BCH prompt should list all devices including 10/0/12/0
> Google search is failing to find a posting with that content. :/

IIRC it is the network card.

The last time I saw this was during "emerge --sync", which was hours away from 
the nightly CMake run. Since all traces point at the network card I think this 
really has nothing to do with CMake or CPU load at all.

Eike
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On Wed, 26 Oct 2011 15:02:35 +0200
"Rolf Eike Beer" <eike-kernel@sf-tec.de> wrote:

> Ok, I think I found the culprit. This change to the .config makes my
> machine  boot:
> 
> --- kernel-config-parisc-3.1.0  2011-10-26 14:56:42.418487152 +0200
> +++ config      2011-10-26 14:56:29.583485965 +0200
> @@ -16,6 +16,7 @@
>  CONFIG_NEED_DMA_MAP_STATE=y
>  CONFIG_NEED_SG_DMA_LENGTH=y
>  CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
> +CONFIG_CONSTRUCTORS=y
>  CONFIG_HAVE_IRQ_WORK=y
>  CONFIG_IRQ_WORK=y
> 
> @@ -114,6 +115,7 @@
>  #
>  # GCOV-based kernel profiling
>  #
> +CONFIG_GCOV_KERNEL=y
>  # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
>  CONFIG_SLABINFO=y
>  CONFIG_RT_MUTEXES=y
> @@ -1524,7 +1528,7 @@
>  CONFIG_MAGIC_SYSRQ=y
>  CONFIG_STRIP_ASM_SYMS=y
>  # CONFIG_UNUSED_SYMBOLS is not set
> -# CONFIG_DEBUG_FS is not set
> +CONFIG_DEBUG_FS=y
>  CONFIG_HEADERS_CHECK=y
>  # CONFIG_DEBUG_SECTION_MISMATCH is not set
>  CONFIG_DEBUG_KERNEL=y

Confirmed. Disabling CONFIG_GCOV_KERNEL was the only change I made.
Kernel boot log attached.


Regards,
     jer
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From - Thu Nov 08 21:07:40 2018
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X-Mozilla-Keys:                                                                                 
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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.kernel.pci,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH v3 19/34] parisc/PCI: dino: use pci_create_bus() instead of
	pci_scan_bus_parented()
Date: Fri, 28 Oct 2011 16:27:07 -0600
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No functional change here; just converting from pci_scan_bus_parented()
to pci_create_bus() to make a future patch simpler.

CC: linux-parisc@vger.kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/parisc/dino.c |   22 ++++++++++++----------
 1 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index bcd5d54..90252c0 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -1007,22 +1007,24 @@ static int __init dino_probe(struct parisc_device *dev)
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = bus = pci_scan_bus_parented(&dev->dev,
+	dino_dev->hba.hba_bus = bus = pci_create_bus(&dev->dev,
 			 dino_current_bus, &dino_cfg_ops, NULL);
-
-	if(bus) {
-		/* This code *depends* on scanning being single threaded
-		 * if it isn't, this global bus number count will fail
-		 */
-		dino_current_bus = bus->subordinate + 1;
-		pci_bus_assign_resources(bus);
-		pci_bus_add_devices(bus);
-	} else {
+	if (!bus) {
 		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
 		       dev_name(&dev->dev), dino_current_bus);
 		/* increment the bus number in case of duplicates */
 		dino_current_bus++;
+		return 0;
 	}
+
+	bus->subordinate = pci_scan_child_bus(bus);
+
+	/* This code *depends* on scanning being single threaded
+	 * if it isn't, this global bus number count will fail
+	 */
+	dino_current_bus = bus->subordinate + 1;
+	pci_bus_assign_resources(bus);
+	pci_bus_add_devices(bus);
 	return 0;
 }
 


From - Thu Nov 08 21:07:40 2018
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X-Mozilla-Keys:                                                                                 
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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.kernel.pci,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH v3 20/34] parisc/PCI: dino: convert to pci_create_root_bus()
	for correct root bus resources
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Supply root bus resources to pci_create_root_bus() so they're correct
immediately.  This fixes the problem of "early" and "header" quirks seeing
incorrect root bus resources.

CC: linux-parisc@vger.kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/parisc/dino.c |   27 ++++++++++++---------------
 1 files changed, 12 insertions(+), 15 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 90252c0..7ff10c1 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -562,19 +562,6 @@ dino_fixup_bus(struct pci_bus *bus)
 	/* Firmware doesn't set up card-mode dino, so we have to */
 	if (is_card_dino(&dino_dev->hba.dev->id)) {
 		dino_card_setup(bus, dino_dev->hba.base_addr);
-	} else if(bus->parent == NULL) {
-		/* must have a dino above it, reparent the resources
-		 * into the dino window */
-		int i;
-		struct resource *res = &dino_dev->hba.lmmio_space;
-
-		bus->resource[0] = &(dino_dev->hba.io_space);
-		for(i = 0; i < DINO_MAX_LMMIO_RESOURCES; i++) {
-			if(res[i].flags == 0)
-				break;
-			bus->resource[i+1] = &res[i];
-		}
-
 	} else if (bus->parent) {
 		int i;
 
@@ -927,6 +914,7 @@ static int __init dino_probe(struct parisc_device *dev)
 	const char *version = "unknown";
 	char *name;
 	int is_cujo = 0;
+	LIST_HEAD(resources);
 	struct pci_bus *bus;
 	unsigned long hpa = dev->hpa.start;
 
@@ -1003,15 +991,24 @@ static int __init dino_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = dino_dev;
 
+	pci_add_resource(&resources, &dino_dev->hba.io_space);
+	if (dino_dev->hba.lmmio_space.flags)
+		pci_add_resource(&resources, &dino_dev->hba.lmmio_space);
+	if (dino_dev->hba.elmmio_space.flags)
+		pci_add_resource(&resources, &dino_dev->hba.elmmio_space);
+	if (dino_dev->hba.gmmio_space.flags)
+		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
+
 	/*
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = bus = pci_create_bus(&dev->dev,
-			 dino_current_bus, &dino_cfg_ops, NULL);
+	dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev,
+			 dino_current_bus, &dino_cfg_ops, NULL, &resources);
 	if (!bus) {
 		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
 		       dev_name(&dev->dev), dino_current_bus);
+		pci_free_resource_list(&resources);
 		/* increment the bus number in case of duplicates */
 		dino_current_bus++;
 		return 0;


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X-Mozilla-Keys:                                                                                 
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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 21/34] parisc/PCI: lba: deal with LMMIO/PAT overlaps before
	creating PCI root bus
Date: Fri, 28 Oct 2011 16:27:17 -0600
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This moves the truncate_pat_collision() call out of the pcibios_fixup_bus()
path so that when a future patch builds a list of root bus resources for
pci_create_bus(), it can use the truncated LMMIO range.

truncate_pat_collision() used to be called in this path:

    pci_scan_bus_parented
      pci_create_bus
      pci_scan_child_bus
        pcibios_fixup_bus
	  lba_fixup_bus
	    truncate_pat_collision

All of the PAT and lba_dev resource setup must be done before we call
pci_scan_bus_parented(), so it should be safe to move the
truncate_pat_collision() to just before pci_scan_bus_parented().

CC: linux-parisc@vger.kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/parisc/lba_pci.c |   35 ++++++++++++++++++-----------------
 1 files changed, 18 insertions(+), 17 deletions(-)

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 3aeb327..2c7edf3 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -689,23 +689,7 @@ lba_fixup_bus(struct pci_bus *bus)
 				bus->resource[i++] = &(ldev->hba.elmmio_space);
 		}
 
-
-		/*   Overlaps with elmmio can (and should) fail here.
-		 *   We will prune (or ignore) the distributed range.
-		 *
-		 *   FIXME: SBA code should register all elmmio ranges first.
-		 *      that would take care of elmmio ranges routed
-		 *	to a different rope (already discovered) from
-		 *	getting registered *after* LBA code has already
-		 *	registered it's distributed lmmio range.
-		 */
-		if (truncate_pat_collision(&iomem_resource,
-				       	&(ldev->hba.lmmio_space))) {
-
-			printk(KERN_WARNING "LBA: lmmio_space [%lx/%lx] duplicate!\n",
-					(long)ldev->hba.lmmio_space.start,
-					(long)ldev->hba.lmmio_space.end);
-		} else {
+		if (ldev->hba.lmmio_space.flags) {
 			err = request_resource(&iomem_resource, &(ldev->hba.lmmio_space));
 			if (err < 0) {
 				printk(KERN_ERR "FAILED: lba_fixup_bus() request for "
@@ -1518,6 +1502,23 @@ lba_driver_probe(struct parisc_device *dev)
 	if (lba_dev->hba.bus_num.start < lba_next_bus)
 		lba_dev->hba.bus_num.start = lba_next_bus;
 
+	/*   Overlaps with elmmio can (and should) fail here.
+	 *   We will prune (or ignore) the distributed range.
+	 *
+	 *   FIXME: SBA code should register all elmmio ranges first.
+	 *      that would take care of elmmio ranges routed
+	 *	to a different rope (already discovered) from
+	 *	getting registered *after* LBA code has already
+	 *	registered it's distributed lmmio range.
+	 */
+	if (truncate_pat_collision(&iomem_resource,
+				   &(lba_dev->hba.lmmio_space))) {
+		printk(KERN_WARNING "LBA: lmmio_space [%lx/%lx] duplicate!\n",
+				(long)lba_dev->hba.lmmio_space.start,
+				(long)lba_dev->hba.lmmio_space.end);
+		lba_dev->hba.lmmio_space.flags = 0;
+	}
+
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
 		pci_scan_bus_parented(&dev->dev, lba_dev->hba.bus_num.start,

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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 22/34] parisc/PCI: lba: use pci_create_bus() instead of
	pci_scan_bus_parented()
Date: Fri, 28 Oct 2011 16:27:22 -0600
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No functional change here; just converting from pci_scan_bus_parented()
to pci_create_bus() to make a future patch simpler.

CC: linux-parisc@vger.kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/parisc/lba_pci.c |   14 ++++++++------
 1 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 2c7edf3..e5dfa25 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1521,8 +1521,12 @@ lba_driver_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
-		pci_scan_bus_parented(&dev->dev, lba_dev->hba.bus_num.start,
-				cfg_ops, NULL);
+		pci_create_bus(&dev->dev, lba_dev->hba.bus_num.start,
+			       cfg_ops, NULL);
+	if (!lba_bus)
+		return 0;
+
+	lba_bus->subordinate = pci_scan_child_bus(lba_bus);
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
@@ -1552,10 +1556,8 @@ lba_driver_probe(struct parisc_device *dev)
 		lba_dev->flags |= LBA_FLAG_SKIP_PROBE;
 	}
 
-	if (lba_bus) {
-		lba_next_bus = lba_bus->subordinate + 1;
-		pci_bus_add_devices(lba_bus);
-	}
+	lba_next_bus = lba_bus->subordinate + 1;
+	pci_bus_add_devices(lba_bus);
 
 	/* Whew! Finally done! Tell services we got this one covered. */
 	return 0;

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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel.pci,gmane.linux.ports.parisc
Subject: [PATCH v3 23/34] parisc/PCI: lba: convert to pci_create_root_bus()
	for correct root bus resources
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Supply root bus resources to pci_create_root_bus() so they're correct
immediately.  This fixes the problem of "early" and "header" quirks seeing
incorrect root bus resources.

CC: linux-parisc@vger.kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/parisc/lba_pci.c |   29 +++++++++++++++++------------
 1 files changed, 17 insertions(+), 12 deletions(-)

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index e5dfa25..d5f3d75 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -653,7 +653,7 @@ lba_fixup_bus(struct pci_bus *bus)
 		}
 	} else {
 		/* Host-PCI Bridge */
-		int err, i;
+		int err;
 
 		DBG("lba_fixup_bus() %s [%lx/%lx]/%lx\n",
 			ldev->hba.io_space.name,
@@ -669,9 +669,6 @@ lba_fixup_bus(struct pci_bus *bus)
 			lba_dump_res(&ioport_resource, 2);
 			BUG();
 		}
-		/* advertize Host bridge resources to PCI bus */
-		bus->resource[0] = &(ldev->hba.io_space);
-		i = 1;
 
 		if (ldev->hba.elmmio_space.start) {
 			err = request_resource(&iomem_resource,
@@ -685,8 +682,7 @@ lba_fixup_bus(struct pci_bus *bus)
 
 				/* lba_dump_res(&iomem_resource, 2); */
 				/* BUG(); */
-			} else
-				bus->resource[i++] = &(ldev->hba.elmmio_space);
+			}
 		}
 
 		if (ldev->hba.lmmio_space.flags) {
@@ -696,8 +692,7 @@ lba_fixup_bus(struct pci_bus *bus)
 					"lmmio_space [%lx/%lx]\n",
 					(long)ldev->hba.lmmio_space.start,
 					(long)ldev->hba.lmmio_space.end);
-			} else
-				bus->resource[i++] = &(ldev->hba.lmmio_space);
+			}
 		}
 
 #ifdef CONFIG_64BIT
@@ -712,7 +707,6 @@ lba_fixup_bus(struct pci_bus *bus)
 				lba_dump_res(&iomem_resource, 2);
 				BUG();
 			}
-			bus->resource[i++] = &(ldev->hba.gmmio_space);
 		}
 #endif
 
@@ -1388,6 +1382,7 @@ static int __init
 lba_driver_probe(struct parisc_device *dev)
 {
 	struct lba_device *lba_dev;
+	LIST_HEAD(resources);
 	struct pci_bus *lba_bus;
 	struct pci_ops *cfg_ops;
 	u32 func_class;
@@ -1519,12 +1514,22 @@ lba_driver_probe(struct parisc_device *dev)
 		lba_dev->hba.lmmio_space.flags = 0;
 	}
 
+	pci_add_resource(&resources, &lba_dev->hba.io_space);
+	if (lba_dev->hba.elmmio_space.start)
+		pci_add_resource(&resources, &lba_dev->hba.elmmio_space);
+	if (lba_dev->hba.lmmio_space.flags)
+		pci_add_resource(&resources, &lba_dev->hba.lmmio_space);
+	if (lba_dev->hba.gmmio_space.flags)
+		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
+
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
-		pci_create_bus(&dev->dev, lba_dev->hba.bus_num.start,
-			       cfg_ops, NULL);
-	if (!lba_bus)
+		pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
+				    cfg_ops, NULL, &resources);
+	if (!lba_bus) {
+		pci_free_resource_list(&resources);
 		return 0;
+	}
 
 	lba_bus->subordinate = pci_scan_child_bus(lba_bus);
 


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On 21-Oct-11, at 2:15 PM, Carlos O'Donell wrote:

> On Fri, Oct 21, 2011 at 2:11 PM, John David Anglin <dave.anglin@bell.net 
> > wrote:
>> On 10/21/2011 1:42 PM, John David Anglin wrote:
>>>
>>> Yes.  The issue here is expand_call doesn't appear to be aware that
>>> loading the
>>> address of a __thread variable may require a call.  Thus, it just  
>>> emits an
>>> insn to
>>> load r26.  This load is dead because r26 is reloaded for the call to
>>> __tls_get_addr.
>>
>> It appears this may be caused by treating TLS symbols as legitimate
>> constants.
>
> Which they are not in any of the *_DYNAMIC modes, because the dynamic
> linker is involved in their placement.


This problem is fixed in the GCC trunk and 4.4, 4.5 and 4.6 branches.   
libmpfr4-3.1.0
now passes all tests.

Dave
--
John David Anglin	dave.anglin@bell.net



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John David Anglin wrote:

> This problem is fixed in the GCC trunk and 4.4, 4.5 and 4.6 branches.
> libmpfr4-3.1.0 now passes all tests.

Can we get a link to a bug or a commit so we could easily put this into the 
gentoo patchset for local usage until a new version is released?

Eike
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From - Thu Nov 08 21:07:41 2018
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On 30-Oct-11, at 11:31 AM, Rolf Eike Beer wrote:

> John David Anglin wrote:
>
>> This problem is fixed in the GCC trunk and 4.4, 4.5 and 4.6 branches.
>> libmpfr4-3.1.0 now passes all tests.
>
> Can we get a link to a bug or a commit so we could easily put this  
> into the
> gentoo patchset for local usage until a new version is released?


The trunk patch is on the gcc-patches list:
http://gcc.gnu.org/ml/gcc-patches/2011-10/msg02758.html

There are two variants of the patch:
http://gcc.gnu.org/viewcvs?view=revision&revision=180655
http://gcc.gnu.org/viewcvs?view=revision&revision=180662

The first is for 4.7.  The latter applies to 4.4, 4.5 and 4.6.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Sun, Oct 30, 2011 at 12:13 PM, John David Anglin
<dave.anglin@bell.net> wrote:
> On 30-Oct-11, at 11:31 AM, Rolf Eike Beer wrote:
>
>> John David Anglin wrote:
>>
>>> This problem is fixed in the GCC trunk and 4.4, 4.5 and 4.6 branche=
s.
>>> libmpfr4-3.1.0 now passes all tests.
>>
>> Can we get a link to a bug or a commit so we could easily put this i=
nto
>> the
>> gentoo patchset for local usage until a new version is released?
>
>
> The trunk patch is on the gcc-patches list:
> http://gcc.gnu.org/ml/gcc-patches/2011-10/msg02758.html
>
> There are two variants of the patch:
> http://gcc.gnu.org/viewcvs?view=3Drevision&revision=3D180655
> http://gcc.gnu.org/viewcvs?view=3Drevision&revision=3D180662
>
> The first is for 4.7. =A0The latter applies to 4.4, 4.5 and 4.6.

Awesome! Great work Dave! :-)

Cheers,
Carlos.
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From: John David Anglin <dave.anglin@bell.net>
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On 30-Oct-11, at 8:21 PM, Carlos O'Donell wrote:

> On Sun, Oct 30, 2011 at 12:13 PM, John David Anglin
> <dave.anglin@bell.net> wrote:
>> On 30-Oct-11, at 11:31 AM, Rolf Eike Beer wrote:
>>
>>> John David Anglin wrote:
>>>
>>>> This problem is fixed in the GCC trunk and 4.4, 4.5 and 4.6  
>>>> branches.
>>>> libmpfr4-3.1.0 now passes all tests.
>>>
>>> Can we get a link to a bug or a commit so we could easily put this  
>>> into
>>> the
>>> gentoo patchset for local usage until a new version is released?
>>
>>
>> The trunk patch is on the gcc-patches list:
>> http://gcc.gnu.org/ml/gcc-patches/2011-10/msg02758.html
>>
>> There are two variants of the patch:
>> http://gcc.gnu.org/viewcvs?view=revision&revision=180655
>> http://gcc.gnu.org/viewcvs?view=revision&revision=180662
>>
>> The first is for 4.7.  The latter applies to 4.4, 4.5 and 4.6.
>
> Awesome! Great work Dave! :-)

Thanks, but this fix wasn't that hard...  I had a little trouble with  
the testing
due to other issues.  Many GCC bugs are much harder.  Things are easy
when the compilation bug is clear.

I integrated Guy's patch into debian 2.13-10 today and I was going to do
a build, but then I discovered it builds using 4.4.  So, I patched 4.4  
with the
above change, and will rebuild 2.13 when it's done.  Hopefully, this  
will
fix the udev bug which is blocking many python builds.  I'm interested  
to
see if the glibc testsuite results will be better.

It's a bit unclear how extensively TLS variables are used, but maybe  
fixing
this will make it easier to resolve the remaining pthread bugs.

I've been wondering how much is left to install to glibc head?

Dave
--
John David Anglin	dave.anglin@bell.net



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On Sun, Oct 30, 2011 at 09:36:05PM -0400, John David Anglin wrote:
> 
> I integrated Guy's patch into debian 2.13-10 today and I was going to do
> a build, but then I discovered it builds using 4.4.  So, I patched
> 4.4 with the
> above change, and will rebuild 2.13 when it's done.  Hopefully, this
> will
> fix the udev bug which is blocking many python builds.  I'm
> interested to
> see if the glibc testsuite results will be better.

I would like to redo the exercise on my j5600, are you building Debian
packages? Could you please share the sources? Thank you.

Regards,
Domenico
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On 31-Oct-11, at 5:41 AM, Domenico Andreoli wrote:

> On Sun, Oct 30, 2011 at 09:36:05PM -0400, John David Anglin wrote:
>>
>> I integrated Guy's patch into debian 2.13-10 today and I was going  
>> to do
>> a build, but then I discovered it builds using 4.4.  So, I patched
>> 4.4 with the
>> above change, and will rebuild 2.13 when it's done.  Hopefully, this
>> will
>> fix the udev bug which is blocking many python builds.  I'm
>> interested to
>> see if the glibc testsuite results will be better.
>
> I would like to redo the exercise on my j5600, are you building Debian
> packages? Could you please share the sources? Thank you.

I am building Debian unstable source packages.  I am close to catching
up the areas that I use.

Except for the recent GCC TLS fix and three eglibc packages, I have been
using unmodified upstream stream sources.  I may have hacked one or two,
but the change was obvious.

There were instructions posted on debian-hppa a few months ago on
adding debian-ports to your sources list file.

  I don't generally retain the debian source files due to limited disk  
space.
What I could make available is my .deb files.

I will post the eglibc patches when I confirm that the latest update  
fixes
the udev bug.  I also need to rebuild perl and check its status.  Moving
to the current eglibc version may break old versions of perl.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:07:41 2018
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On 31-Oct-11, at 5:41 AM, Domenico Andreoli wrote:

> I would like to redo the exercise on my j5600, are you building Debian
> packages? Could you please share the sources? Thank you.

Attached are the hppa libc6 patches that I'm using.  The local-stack- 
grows-up.diff patch needs
to be removed first, then the patches applied in order of date using  
quilt.

The last change resolves the udev bug.

I will send you offline the eglibc_2.13-10.dsc  and the  
eglibc_2.13-10.diff.gz.  The
eglibc_2.13.orig.tar.gz file should still be available.

Dave
--
John David Anglin	dave.anglin@bell.net


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Index: eglibc-2.13/ports/ChangeLog.hppa
===================================================================
--- eglibc-2.13.orig/ports/ChangeLog.hppa	2011-09-04 14:13:02.000000000 -0400
+++ eglibc-2.13/ports/ChangeLog.hppa	2011-09-04 14:20:23.000000000 -0400
@@ -1,3 +1,8 @@
+2010-10-29  Carlos O'Donell  <carlos@codesourcery.com>
+
+	* sysdeps/hppa/dl-machine.h: Update copyright year.
+	(ELF_MACHINE_BEFORE_RTLD_RELOC): Call _dl_fptr_init.
+
 2010-06-24  Carlos O'Donell  <carlos@codesourcery.com>
 
 	* sysdeps/unix/sysv/linux/hppa/nptl/pt-vfork.S: Only create stack 
Index: eglibc-2.13/ports/sysdeps/hppa/configure
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/configure	2011-09-04 14:13:32.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/configure	2011-09-04 14:34:35.000000000 -0400
@@ -1,19 +1,101 @@
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+        X"$0" : 'X\(//\)$' \| \
+        X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+           s//\1/
+           q
+         }
+         /^X\/\(\/\/\)$/{
+           s//\1/
+           q
+         }
+         /^X\/\(\/\).*/{
+           s//\1/
+           q
+         }
+         s/.*/./; q'`
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
 
-{ $as_echo "$as_me:$LINENO: checking for assembler line separator" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for assembler line separator" >&5
 $as_echo_n "checking for assembler line separator... " >&6; }
-if test "${libc_cv_asm_line_sep+set}" = set; then
+if test "${libc_cv_asm_line_sep+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.s <<EOF
 nop ; is_old_puffin
 EOF
 if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
   libc_cv_asm_line_sep='!'
 else
   if test -z "$enable_hacker_mode"; then
@@ -25,7 +107,7 @@
 fi
 rm -f conftest*
 fi
-{ $as_echo "$as_me:$LINENO: result: $libc_cv_asm_line_sep" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_line_sep" >&5
 $as_echo "$libc_cv_asm_line_sep" >&6; }
 cat >>confdefs.h <<_ACEOF
 #define ASM_LINE_SEP $libc_cv_asm_line_sep
Index: eglibc-2.13/ports/sysdeps/hppa/dl-fptr.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/dl-fptr.h	2011-09-04 14:14:04.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/dl-fptr.h	2011-09-04 14:20:23.000000000 -0400
@@ -22,6 +22,9 @@
 
 #include <sysdeps/generic/dl-fptr.h>
 
+/* Initialize function pointer code. Call before relocation processing.  */
+extern void _dl_fptr_init (void);
+
 /* There are currently 33 dynamic symbols in ld.so.
    ELF_MACHINE_BOOT_FPTR_TABLE_LEN needs to be at least that big.  */
 #define ELF_MACHINE_BOOT_FPTR_TABLE_LEN 64	
Index: eglibc-2.13/ports/sysdeps/hppa/dl-machine.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/dl-machine.h	2011-09-04 14:14:30.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/dl-machine.h	2011-09-04 14:20:23.000000000 -0400
@@ -1,6 +1,5 @@
 /* Machine-dependent ELF dynamic relocation inline functions.  PA-RISC version.
-   Copyright (C) 1995-1997,1999-2003
-	Free Software Foundation, Inc.
+   Copyright (C) 1995-1997,1999-2003, 2010 Free Software Foundation, Inc.
    Contributed by David Huggins-Daines <dhd@debian.org>
    This file is part of the GNU C Library.
 
Index: eglibc-2.13/ports/sysdeps/hppa/dl-tls.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/dl-tls.h	2011-09-04 14:14:57.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/dl-tls.h	2011-09-04 14:20:23.000000000 -0400
@@ -1,5 +1,5 @@
 /* Thread-local storage handling in the ELF dynamic linker.  hppa version.
-   Copyright (C) 2003 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -27,3 +27,6 @@
 
 
 extern void *__tls_get_addr (tls_index *ti);
+
+/* Value used for dtv entries for which the allocation is delayed.  */
+#define TLS_DTV_UNALLOCATED	((void *) -1l)
Index: eglibc-2.13/ports/sysdeps/hppa/elf/configure
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/elf/configure	2011-09-04 14:15:24.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/elf/configure	2011-09-04 14:45:59.000000000 -0400
@@ -1,12 +1,94 @@
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+        X"$0" : 'X\(//\)$' \| \
+        X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+           s//\1/
+           q
+         }
+         /^X\/\(\/\/\)$/{
+           s//\1/
+           q
+         }
+         /^X\/\(\/\).*/{
+           s//\1/
+           q
+         }
+         s/.*/./; q'`
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/hppa/elf.
 
 if test "$usetls" != no; then
 # Check for support of thread-local storage handling in assembler and
 # linker.
-{ $as_echo "$as_me:$LINENO: checking for hppa TLS support" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for hppa TLS support" >&5
 $as_echo_n "checking for hppa TLS support... " >&6; }
-if test "${libc_cv_hppa_tls+set}" = set; then
+if test "${libc_cv_hppa_tls+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.s <<\EOF
@@ -41,23 +123,21 @@
 ; Done all the TLS tests.
 EOF
 if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
   libc_cv_hppa_tls=yes
 else
   libc_cv_hppa_tls=no
 fi
 rm -f conftest*
 fi
-{ $as_echo "$as_me:$LINENO: result: $libc_cv_hppa_tls" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_hppa_tls" >&5
 $as_echo "$libc_cv_hppa_tls" >&6; }
 if test $libc_cv_hppa_tls = yes; then
-  cat >>confdefs.h <<\_ACEOF
-#define HAVE_TLS_SUPPORT 1
-_ACEOF
+  $as_echo "#define HAVE_TLS_SUPPORT 1" >>confdefs.h
 
 fi
 fi
Index: eglibc-2.13/ports/sysdeps/hppa/fpu/fegetenv.c
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/fpu/fegetenv.c	2011-09-04 14:15:52.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/fpu/fegetenv.c	2011-09-04 14:20:23.000000000 -0400
@@ -1,5 +1,5 @@
 /* Store current floating-point environment.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by David Huggins-Daines <dhd@debian.org>, 2000
 
Index: eglibc-2.13/ports/sysdeps/hppa/fpu/feupdateenv.c
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/fpu/feupdateenv.c	2011-09-04 14:16:18.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/fpu/feupdateenv.c	2011-09-04 14:20:23.000000000 -0400
@@ -1,5 +1,5 @@
 /* Install given floating-point environment and raise exceptions.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by David Huggins-Daines <dhd@debian.org>, 2000
 
Index: eglibc-2.13/ports/sysdeps/hppa/fpu/ftestexcept.c
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/fpu/ftestexcept.c	2011-09-04 14:16:49.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/fpu/ftestexcept.c	2011-09-04 14:20:23.000000000 -0400
@@ -1,5 +1,5 @@
 /* Test exception in current environment.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by David Huggins-Daines <dhd@debian.org>, 2000
 
Index: eglibc-2.13/ports/sysdeps/hppa/stackinfo.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/stackinfo.h	2011-09-04 14:17:22.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/stackinfo.h	2011-09-04 14:20:23.000000000 -0400
@@ -22,6 +22,12 @@
 #ifndef _STACKINFO_H
 #define _STACKINFO_H	1
 
+#include <elf.h>
+
+/* Default to an executable stack.  PF_X can be overridden if PT_GNU_STACK is
+ * present, but it is presumed absent.  */
+#define DEFAULT_STACK_PERMS (PF_R|PF_W|PF_X)
+
 /* On PA the stack grows up.  */
 #define _STACK_GROWS_UP	1
 
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/bits/fcntl.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/unix/sysv/linux/hppa/bits/fcntl.h	2011-09-04 14:17:42.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/bits/fcntl.h	2011-09-04 14:20:23.000000000 -0400
@@ -1,5 +1,5 @@
-/* O_*, F_*, FD_* bit values for Linux/HPPA.
-   Copyright (C) 1995,1996,1997,1998,1999,2000,2002,2004
+/* O_*, F_*, FD_* bit values for Linux.
+   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2004, 2010
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -29,7 +29,7 @@
 
 
 /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
-   located on an ext2 file system */
+   located on a few file systems.  */
 #define O_ACCMODE	   0003
 #define O_RDONLY	     00
 #define O_WRONLY	     01
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h	2011-09-04 14:18:10.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h	2011-09-04 14:20:23.000000000 -0400
@@ -61,11 +61,53 @@
    
 # undef PSEUDO
 # define PSEUDO(name, syscall_name, args)				\
+	ENTRY (__##syscall_name##_nocancel)				\
+	DOARGS_##args					ASM_LINE_SEP	\
+	stwm TREG, 64(%sp)				ASM_LINE_SEP	\
+	.cfi_offset TREG, 0				ASM_LINE_SEP	\
+	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	\
+	stw %sp, -4(%sp)				ASM_LINE_SEP	\
+	.cfi_offset 30, -4				ASM_LINE_SEP	\
+	stw %r19, -32(%sp)				ASM_LINE_SEP	\
+	.cfi_offset 19, -32				ASM_LINE_SEP	\
+	/* Save r19 */					ASM_LINE_SEP	\
+	SAVE_PIC(TREG)					ASM_LINE_SEP	\
+	/* Do syscall, delay loads # */			ASM_LINE_SEP	\
+	ble  0x100(%sr2,%r0)				ASM_LINE_SEP	\
+	ldi SYS_ify (syscall_name), %r20 /* delay */	ASM_LINE_SEP	\
+	ldi NO_ERROR,%r1				ASM_LINE_SEP	\
+	cmpb,>>=,n %r1,%ret0,L(pre_nc_end)		ASM_LINE_SEP	\
+	/* Restore r19 from TREG */			ASM_LINE_SEP	\
+	LOAD_PIC(TREG) /* delay */			ASM_LINE_SEP	\
+	SYSCALL_ERROR_HANDLER				ASM_LINE_SEP	\
+	/* Use TREG for temp storage */			ASM_LINE_SEP	\
+	copy %ret0, TREG /* delay */			ASM_LINE_SEP	\
+	/* OPTIMIZE: Don't reload r19 */		ASM_LINE_SEP	\
+	/* do a -1*syscall_ret0 */			ASM_LINE_SEP	\
+	sub %r0, TREG, TREG				ASM_LINE_SEP	\
+	/* Store into errno location */			ASM_LINE_SEP	\
+	stw TREG, 0(%sr0,%ret0)				ASM_LINE_SEP	\
+	/* return -1 as error */			ASM_LINE_SEP	\
+	ldi -1, %ret0					ASM_LINE_SEP	\
+L(pre_nc_end):						ASM_LINE_SEP	\
+	/* No need to LOAD_PIC */			ASM_LINE_SEP	\
+	/* Undo frame */				ASM_LINE_SEP	\
+	ldwm -64(%sp),TREG				ASM_LINE_SEP	\
+	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	\
+	/* Restore rp before exit */			ASM_LINE_SEP	\
+	ldw -20(%sp), %rp				ASM_LINE_SEP	\
+	.cfi_restore 2					ASM_LINE_SEP	\
+	ret						ASM_LINE_SEP	\
+	END(__##syscall_name##_nocancel)		ASM_LINE_SEP	\
+	/**********************************************/ASM_LINE_SEP	\
 	ENTRY (name)							\
 	DOARGS_##args					ASM_LINE_SEP	\
 	stwm TREG, 64(%sp)				ASM_LINE_SEP	\
+	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	\
 	stw %sp, -4(%sp)				ASM_LINE_SEP	\
+	.cfi_offset 30, -4				ASM_LINE_SEP	\
 	stw %r19, -32(%sp)				ASM_LINE_SEP	\
+	.cfi_offset 19, -32				ASM_LINE_SEP	\
 	/* Done setting up frame, continue... */	ASM_LINE_SEP	\
 	SINGLE_THREAD_P					ASM_LINE_SEP	\
 	cmpib,<>,n 0,%ret0,L(pseudo_cancel)		ASM_LINE_SEP	\
@@ -128,26 +170,40 @@
 	/* No need to LOAD_PIC */			ASM_LINE_SEP	\
 	/* Undo frame */				ASM_LINE_SEP	\
 	ldwm -64(%sp),TREG				ASM_LINE_SEP	\
+	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	\
 	/* Restore rp before exit */			ASM_LINE_SEP	\
-	ldw -20(%sp), %rp				ASM_LINE_SEP
+	ldw -20(%sp), %rp				ASM_LINE_SEP	\
+	.cfi_restore 2					ASM_LINE_SEP
 
 /* Save arguments into our frame */
 # define PUSHARGS_0	/* nothing to do */
-# define PUSHARGS_1	PUSHARGS_0 stw %r26, -36(%sr0,%sp)	ASM_LINE_SEP
-# define PUSHARGS_2	PUSHARGS_1 stw %r25, -40(%sr0,%sp)	ASM_LINE_SEP
-# define PUSHARGS_3	PUSHARGS_2 stw %r24, -44(%sr0,%sp)	ASM_LINE_SEP
-# define PUSHARGS_4	PUSHARGS_3 stw %r23, -48(%sr0,%sp)	ASM_LINE_SEP
-# define PUSHARGS_5	PUSHARGS_4 stw %r22, -52(%sr0,%sp)	ASM_LINE_SEP 
-# define PUSHARGS_6	PUSHARGS_5 stw %r21, -56(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_1	PUSHARGS_0 stw %r26, -36(%sr0,%sp)	ASM_LINE_SEP	\
+			.cfi_offset 26, -36			ASM_LINE_SEP
+# define PUSHARGS_2	PUSHARGS_1 stw %r25, -40(%sr0,%sp)	ASM_LINE_SEP	\
+			.cfi_offset 25, -40			ASM_LINE_SEP
+# define PUSHARGS_3	PUSHARGS_2 stw %r24, -44(%sr0,%sp)	ASM_LINE_SEP	\
+			.cfi_offset 24, -44			ASM_LINE_SEP
+# define PUSHARGS_4	PUSHARGS_3 stw %r23, -48(%sr0,%sp)	ASM_LINE_SEP	\
+			.cfi_offset 23, -48			ASM_LINE_SEP
+# define PUSHARGS_5	PUSHARGS_4 stw %r22, -52(%sr0,%sp)	ASM_LINE_SEP	\
+			.cfi_offset 22, -52			ASM_LINE_SEP
+# define PUSHARGS_6	PUSHARGS_5 stw %r21, -56(%sr0,%sp)	ASM_LINE_SEP	\
+			.cfi_offset 21, -56			ASM_LINE_SEP
 
 /* Bring them back from the stack */
 # define POPARGS_0	/* nothing to do */
-# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	ASM_LINE_SEP
-# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	ASM_LINE_SEP
-# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	ASM_LINE_SEP
-# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	ASM_LINE_SEP
-# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	ASM_LINE_SEP
-# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	ASM_LINE_SEP
+# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	ASM_LINE_SEP	\
+			.cfi_restore 26				ASM_LINE_SEP
+# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	ASM_LINE_SEP	\
+			.cfi_restore 25				ASM_LINE_SEP
+# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	ASM_LINE_SEP	\
+			.cfi_restore 24				ASM_LINE_SEP
+# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	ASM_LINE_SEP	\
+			.cfi_restore 23				ASM_LINE_SEP
+# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	ASM_LINE_SEP	\
+			.cfi_restore 22				ASM_LINE_SEP
+# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	ASM_LINE_SEP	\
+			.cfi_restore 21				ASM_LINE_SEP
 
 # ifdef IS_IN_libpthread
 #  ifdef PIC
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/procfs.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/unix/sysv/linux/hppa/sys/procfs.h	2011-09-04 14:18:44.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/procfs.h	2011-09-04 14:20:23.000000000 -0400
@@ -29,10 +29,8 @@
    GDB unless you know what you are doing.  */
 
 #include <features.h>
-#include <signal.h>
 #include <sys/time.h>
 #include <sys/types.h>
-#include <sys/ucontext.h>
 #include <sys/user.h>
 
 __BEGIN_DECLS
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sysdep.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/unix/sysv/linux/hppa/sysdep.h	2011-09-04 14:19:27.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sysdep.h	2011-09-04 14:20:23.000000000 -0400
@@ -22,7 +22,6 @@
 
 #include <asm/unistd.h>
 #include <sysdeps/generic/sysdep.h>
-#include <sys/syscall.h>
 
 /* In order to get __set_errno() definition in INLINE_SYSCALL.  */
 #ifndef __ASSEMBLER__
@@ -35,32 +34,28 @@
 #undef SYS_ify
 #define SYS_ify(syscall_name)	(__NR_##syscall_name)
 
+/* The vfork, fork, and clone syscalls clobber r19
+ * and r21. We list r21 as either clobbered or as an
+ * input to a 6-argument syscall. We must save and
+ * restore r19 in both PIC and non-PIC cases.
+ */ 
 /* WARNING: TREG must be a callee saves register so 
    that it doesn't have to be restored after a call 
    to another function */
-#ifdef PIC
-# define TREG %r3
-# define SAVE_PIC(SREG) copy %r19, SREG ASM_LINE_SEP
-# define LOAD_PIC(LREG) copy LREG, %r19 ASM_LINE_SEP
-/* Inline assembly defines */
-# define TREG_ASM "%r4" /* Cant clobber r3, it holds framemarker */
-# define SAVE_ASM_PIC	"       copy %%r19, %" TREG_ASM "\n"
-# define LOAD_ASM_PIC	"       copy %" TREG_ASM ", %%r19\n"
-# define CLOB_TREG	TREG_ASM ,
-# define PIC_REG_DEF	register unsigned long __r19 asm("r19");
-# define PIC_REG_USE	, "r" (__r19)
-#else
-# define TREG %r3
-# define SAVE_PIC(SREG) nop ASM_LINE_SEP
-# define LOAD_PIC(LREG) nop ASM_LINE_SEP
+#define TREG 4
+#define SAVE_PIC(SREG) \
+	copy %r19, SREG ASM_LINE_SEP	\
+	.cfi_register 19, SREG
+#define LOAD_PIC(LREG) \
+	copy LREG , %r19 ASM_LINE_SEP	\
+	.cfi_restore 19
 /* Inline assembly defines */
-# define TREG_ASM 
-# define SAVE_ASM_PIC	"nop \n"
-# define LOAD_ASM_PIC	"nop \n"
-# define CLOB_TREG
-# define PIC_REG_DEF
-# define PIC_REG_USE
-#endif
+#define TREG_ASM "%r4" /* Cant clobber r3, it holds framemarker */
+#define SAVE_ASM_PIC	"       copy %%r19, %" TREG_ASM "\n"
+#define LOAD_ASM_PIC	"       copy %" TREG_ASM ", %%r19\n"
+#define CLOB_TREG	TREG_ASM ,
+#define PIC_REG_DEF	register unsigned long __r19 asm("r19");
+#define PIC_REG_USE	, "r" (__r19)
 
 #ifdef __ASSEMBLER__
 
@@ -127,12 +122,14 @@
 	.align ALIGNARG(4)				ASM_LINE_SEP	\
 	.export C_SYMBOL_NAME(name)			ASM_LINE_SEP	\
 	.type	C_SYMBOL_NAME(name),@function		ASM_LINE_SEP	\
+	cfi_startproc					ASM_LINE_SEP	\
 	C_LABEL(name)					ASM_LINE_SEP	\
 	.PROC						ASM_LINE_SEP	\
 	.CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=3	ASM_LINE_SEP	\
 	.ENTRY						ASM_LINE_SEP	\
 	/* SAVE_RP says we do */			ASM_LINE_SEP	\
 	stw %rp, -20(%sr0,%sp)				ASM_LINE_SEP	\
+	.cfi_offset 2, -20				ASM_LINE_SEP	\
 	/*FIXME: Call mcount? (carefull with stack!) */
 
 /* Some syscall wrappers do not call other functions, and
@@ -142,18 +139,21 @@
 	.align ALIGNARG(4)				ASM_LINE_SEP	\
 	.export C_SYMBOL_NAME(name)			ASM_LINE_SEP	\
 	.type	C_SYMBOL_NAME(name),@function		ASM_LINE_SEP	\
+	cfi_startproc					ASM_LINE_SEP	\
 	C_LABEL(name)					ASM_LINE_SEP	\
 	.PROC						ASM_LINE_SEP	\
 	.CALLINFO FRAME=64,NO_CALLS,SAVE_RP,ENTRY_GR=3	ASM_LINE_SEP	\
 	.ENTRY						ASM_LINE_SEP	\
 	/* SAVE_RP says we do */			ASM_LINE_SEP	\
 	stw %rp, -20(%sr0,%sp)				ASM_LINE_SEP	\
+	.cfi_offset 2, -20				ASM_LINE_SEP	\
 	/*FIXME: Call mcount? (carefull with stack!) */
 
 #undef	END
 #define END(name)							\
   	.EXIT						ASM_LINE_SEP	\
 	.PROCEND					ASM_LINE_SEP	\
+	cfi_endproc					ASM_LINE_SEP	\
 .size	C_SYMBOL_NAME(name), .-C_SYMBOL_NAME(name)	ASM_LINE_SEP
 
 /* If compiled for profiling, call `mcount' at the start 
@@ -170,9 +170,7 @@
    which means
 	ENTRY(name)
 	DO_CALL(...)
-	nop
-	bv 0(2)
-	nop
+	bv,n 0(2)
 */
 
 #define	PSEUDO(name, syscall_name, args)			\
@@ -180,8 +178,7 @@
   /* If necc. load args from stack */		ASM_LINE_SEP	\
   DOARGS_##args					ASM_LINE_SEP	\
   DO_CALL (syscall_name, args)			ASM_LINE_SEP	\
-  UNDOARGS_##args				ASM_LINE_SEP	\
-  nop						ASM_LINE_SEP
+  UNDOARGS_##args				ASM_LINE_SEP
 
 #define ret \
   /* Return value set by ERRNO code */		ASM_LINE_SEP	\
@@ -196,8 +193,7 @@
   ENTRY_LEAF (name)				ASM_LINE_SEP	\
   DOARGS_##args					ASM_LINE_SEP	\
   DO_CALL_NOERRNO (syscall_name, args)		ASM_LINE_SEP	\
-  UNDOARGS_##args				ASM_LINE_SEP	\
-  nop						ASM_LINE_SEP
+  UNDOARGS_##args				ASM_LINE_SEP
 
 #define ret_NOERRNO ret
 
@@ -211,8 +207,7 @@
   ENTRY_LEAF (name)				ASM_LINE_SEP	\
   DOARGS_##args					ASM_LINE_SEP	\
   DO_CALL_ERRVAL (syscall_name, args)		ASM_LINE_SEP	\
-  UNDOARGS_##args				ASM_LINE_SEP	\
-  nop						ASM_LINE_SEP
+  UNDOARGS_##args				ASM_LINE_SEP
 
 #define ret_ERRVAL ret
 
@@ -290,8 +285,12 @@
 #define DO_CALL(syscall_name, args)				\
 	/* Create a frame */			ASM_LINE_SEP	\
 	stwm TREG, 64(%sp)			ASM_LINE_SEP	\
+	.cfi_offset TREG, 0			ASM_LINE_SEP	\
+	.cfi_adjust_cfa_offset 64		ASM_LINE_SEP	\
 	stw %sp, -4(%sp)			ASM_LINE_SEP	\
+	.cfi_offset 30, -4			ASM_LINE_SEP	\
 	stw %r19, -32(%sp)			ASM_LINE_SEP	\
+	.cfi_offset 19, -32			ASM_LINE_SEP	\
 	/* Save r19 */				ASM_LINE_SEP	\
 	SAVE_PIC(TREG)				ASM_LINE_SEP	\
 	/* Do syscall, delay loads # */		ASM_LINE_SEP	\
@@ -314,8 +313,10 @@
 L(pre_end):					ASM_LINE_SEP	\
 	/* Restore our frame, restoring TREG */	ASM_LINE_SEP	\
 	ldwm -64(%sp), TREG			ASM_LINE_SEP	\
+	.cfi_adjust_cfa_offset -64		ASM_LINE_SEP	\
 	/* Restore return pointer */		ASM_LINE_SEP	\
-	ldw -20(%sp),%rp			ASM_LINE_SEP
+	ldw -20(%sp),%rp			ASM_LINE_SEP	\
+	.cfi_restore 2				ASM_LINE_SEP
 
 /* We do nothing with the return, except hand it back to someone else */
 #undef  DO_CALL_NOERRNO

--Apple-Mail-6-346516678
Content-Disposition: attachment; filename="ports-2011-09-17.diff"
Content-Type: application/octet-stream; x-unix-mode=0644;
	name="ports-2011-09-17.diff"
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Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h	2011-09-05 00:09:53.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h	2011-09-17 23:07:14.000000000 -0400
@@ -288,18 +288,20 @@
   __lll_robust_timedlock (&(futex), abstime, id, private)
 
 #define __lll_unlock(futex, private) \
-  (void)					\
-  ({ int val = atomic_exchange_rel (futex, 0);  \
-     if (__builtin_expect (val > 1, 0))         \
-       lll_futex_wake (futex, 1, private);      \
+  (void)						\
+  ({ int *__futex = (futex);				\
+     int val = atomic_exchange_rel (__futex, 0);	\
+     if (__builtin_expect (val > 1, 0))			\
+       lll_futex_wake (__futex, 1, private);		\
   })
 #define lll_unlock(futex, private) __lll_unlock(&(futex), private)
 
 #define  __lll_robust_unlock(futex,private) \
-  (void)                                               \
-    ({ int val = atomic_exchange_rel (futex, 0);       \
-       if (__builtin_expect (val & FUTEX_WAITERS, 0))  \
-         lll_futex_wake (futex, 1, private);           \
+  (void)						\
+    ({ int *__futex = (futex);				\
+       int val = atomic_exchange_rel (__futex, 0);	\
+       if (__builtin_expect (val & FUTEX_WAITERS, 0))	\
+         lll_futex_wake (__futex, 1, private);		\
     })
 #define lll_robust_unlock(futex, private) \
   __lll_robust_unlock(&(futex), private)

--Apple-Mail-6-346516678
Content-Disposition: attachment; filename="ports-2011-10-30.diff"
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	name="ports-2011-10-30.diff"
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Index: eglibc-2.13/ports/ChangeLog.hppa
===================================================================
--- eglibc-2.13.orig/ports/ChangeLog.hppa	2011-09-24 18:40:01.000000000 -0400
+++ eglibc-2.13/ports/ChangeLog.hppa	2011-10-30 11:43:20.000000000 -0400
@@ -3,6 +3,19 @@
 	* sysdeps/hppa/dl-machine.h: Update copyright year.
 	(ELF_MACHINE_BEFORE_RTLD_RELOC): Call _dl_fptr_init.
 
+2010-08-06  Guy Martin <gmsoft@tuxicoman.be>
+
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/epoll.h:
+	Fix EPOLL_CLOEXEC and EPOLL_NONBLOCK to match kernel definition.
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/eventfd.h:
+	Fix EFD_CLOEXEC and EFD_NONBLOCK to match kernel definition.
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/inotify.h:
+	Fix IN_CLOEXEC and IN_NONBLOCK to match kernel definition.
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/signalfd.h:
+	Fix SFD_CLOEXEC and SFD_NONBLOCK to match kernel definition.
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/timerfd.h:
+	Fix TFD_CLOEXEC and TFD_NONBLOCK to match kernel definition.
+
 2010-06-24  Carlos O'Donell  <carlos@codesourcery.com>
 
 	* sysdeps/unix/sysv/linux/hppa/nptl/pt-vfork.S: Only create stack 
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/epoll.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/epoll.h	2011-10-30 11:44:30.000000000 -0400
@@ -0,0 +1,144 @@
+/* Copyright (C) 2002-2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_EPOLL_H
+#define	_SYS_EPOLL_H	1
+
+#include <stdint.h>
+#include <sys/types.h>
+
+/* Get __sigset_t.  */
+#include <bits/sigset.h>
+
+#ifndef __sigset_t_defined
+# define __sigset_t_defined
+typedef __sigset_t sigset_t;
+#endif
+
+
+/* Flags to be passed to epoll_create1.  */
+enum
+  {
+    EPOLL_CLOEXEC = 010000000,
+#define EPOLL_CLOEXEC EPOLL_CLOEXEC
+    EPOLL_NONBLOCK = 00200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define EPOLL_NONBLOCK EPOLL_NONBLOCK
+  };
+
+
+enum EPOLL_EVENTS
+  {
+    EPOLLIN = 0x001,
+#define EPOLLIN EPOLLIN
+    EPOLLPRI = 0x002,
+#define EPOLLPRI EPOLLPRI
+    EPOLLOUT = 0x004,
+#define EPOLLOUT EPOLLOUT
+    EPOLLRDNORM = 0x040,
+#define EPOLLRDNORM EPOLLRDNORM
+    EPOLLRDBAND = 0x080,
+#define EPOLLRDBAND EPOLLRDBAND
+    EPOLLWRNORM = 0x100,
+#define EPOLLWRNORM EPOLLWRNORM
+    EPOLLWRBAND = 0x200,
+#define EPOLLWRBAND EPOLLWRBAND
+    EPOLLMSG = 0x400,
+#define EPOLLMSG EPOLLMSG
+    EPOLLERR = 0x008,
+#define EPOLLERR EPOLLERR
+    EPOLLHUP = 0x010,
+#define EPOLLHUP EPOLLHUP
+    EPOLLRDHUP = 0x2000,
+#define EPOLLRDHUP EPOLLRDHUP
+    EPOLLONESHOT = (1 << 30),
+#define EPOLLONESHOT EPOLLONESHOT
+    EPOLLET = (1 << 31)
+#define EPOLLET EPOLLET
+  };
+
+
+/* Valid opcodes ( "op" parameter ) to issue to epoll_ctl().  */
+#define EPOLL_CTL_ADD 1	/* Add a file descriptor to the interface.  */
+#define EPOLL_CTL_DEL 2	/* Remove a file descriptor from the interface.  */
+#define EPOLL_CTL_MOD 3	/* Change file descriptor epoll_event structure.  */
+
+
+typedef union epoll_data
+{
+  void *ptr;
+  int fd;
+  uint32_t u32;
+  uint64_t u64;
+} epoll_data_t;
+
+struct epoll_event
+{
+  uint32_t events;	/* Epoll events */
+  epoll_data_t data;	/* User data variable */
+};
+
+
+__BEGIN_DECLS
+
+/* Creates an epoll instance.  Returns an fd for the new instance.
+   The "size" parameter is a hint specifying the number of file
+   descriptors to be associated with the new instance.  The fd
+   returned by epoll_create() should be closed with close().  */
+extern int epoll_create (int __size) __THROW;
+
+/* Same as epoll_create but with an FLAGS parameter.  The unused SIZE
+   parameter has been dropped.  */
+extern int epoll_create1 (int __flags) __THROW;
+
+
+/* Manipulate an epoll instance "epfd". Returns 0 in case of success,
+   -1 in case of error ( the "errno" variable will contain the
+   specific error code ) The "op" parameter is one of the EPOLL_CTL_*
+   constants defined above. The "fd" parameter is the target of the
+   operation. The "event" parameter describes which events the caller
+   is interested in and any associated user data.  */
+extern int epoll_ctl (int __epfd, int __op, int __fd,
+		      struct epoll_event *__event) __THROW;
+
+
+/* Wait for events on an epoll instance "epfd". Returns the number of
+   triggered events returned in "events" buffer. Or -1 in case of
+   error with the "errno" variable set to the specific error code. The
+   "events" parameter is a buffer that will contain triggered
+   events. The "maxevents" is the maximum number of events to be
+   returned ( usually size of "events" ). The "timeout" parameter
+   specifies the maximum wait time in milliseconds (-1 == infinite).
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int epoll_wait (int __epfd, struct epoll_event *__events,
+		       int __maxevents, int __timeout);
+
+
+/* Same as epoll_wait, but the thread's signal mask is temporarily
+   and atomically replaced with the one provided as parameter.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int epoll_pwait (int __epfd, struct epoll_event *__events,
+			int __maxevents, int __timeout,
+			__const __sigset_t *__ss);
+
+__END_DECLS
+
+#endif /* sys/epoll.h */
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/eventfd.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/eventfd.h	2011-10-30 11:44:30.000000000 -0400
@@ -0,0 +1,54 @@
+/* Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_EVENTFD_H
+#define	_SYS_EVENTFD_H	1
+
+#include <stdint.h>
+
+
+/* Type for event counter.  */
+typedef uint64_t eventfd_t;
+
+/* Flags for signalfd.  */
+enum
+  {
+    EFD_SEMAPHORE = 1,
+#define EFD_SEMAPHORE EFD_SEMAPHORE
+    EFD_CLOEXEC = 010000000,
+#define EFD_CLOEXEC EFD_CLOEXEC
+    EFD_NONBLOCK = 00200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define EFD_NONBLOCK EFD_NONBLOCK
+  };
+
+
+__BEGIN_DECLS
+
+/* Return file descriptor for generic event channel.  Set initial
+   value to COUNT.  */
+extern int eventfd (int __count, int __flags) __THROW;
+
+/* Read event counter and possibly wait for events.  */
+extern int eventfd_read (int __fd, eventfd_t *__value);
+
+/* Increment event counter.  */
+extern int eventfd_write (int __fd, eventfd_t __value);
+
+__END_DECLS
+
+#endif /* sys/eventfd.h */
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/inotify.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/inotify.h	2011-10-30 11:44:30.000000000 -0400
@@ -0,0 +1,105 @@
+/* Copyright (C) 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_INOTIFY_H
+#define	_SYS_INOTIFY_H	1
+
+#include <stdint.h>
+
+
+/* Flags for the parameter of inotify_init1.  */
+enum
+  {
+    IN_CLOEXEC = 010000000,
+#define IN_CLOEXEC IN_CLOEXEC
+    IN_NONBLOCK = 000200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define IN_NONBLOCK IN_NONBLOCK
+  };
+
+
+/* Structure describing an inotify event.  */
+struct inotify_event
+{
+  int wd;		/* Watch descriptor.  */
+  uint32_t mask;	/* Watch mask.  */
+  uint32_t cookie;	/* Cookie to synchronize two events.  */
+  uint32_t len;		/* Length (including NULs) of name.  */
+  char name __flexarr;	/* Name.  */
+};
+
+
+/* Supported events suitable for MASK parameter of INOTIFY_ADD_WATCH.  */
+#define IN_ACCESS	 0x00000001	/* File was accessed.  */
+#define IN_MODIFY	 0x00000002	/* File was modified.  */
+#define IN_ATTRIB	 0x00000004	/* Metadata changed.  */
+#define IN_CLOSE_WRITE	 0x00000008	/* Writtable file was closed.  */
+#define IN_CLOSE_NOWRITE 0x00000010	/* Unwrittable file closed.  */
+#define IN_CLOSE	 (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* Close.  */
+#define IN_OPEN		 0x00000020	/* File was opened.  */
+#define IN_MOVED_FROM	 0x00000040	/* File was moved from X.  */
+#define IN_MOVED_TO      0x00000080	/* File was moved to Y.  */
+#define IN_MOVE		 (IN_MOVED_FROM | IN_MOVED_TO) /* Moves.  */
+#define IN_CREATE	 0x00000100	/* Subfile was created.  */
+#define IN_DELETE	 0x00000200	/* Subfile was deleted.  */
+#define IN_DELETE_SELF	 0x00000400	/* Self was deleted.  */
+#define IN_MOVE_SELF	 0x00000800	/* Self was moved.  */
+
+/* Events sent by the kernel.  */
+#define IN_UNMOUNT	 0x00002000	/* Backing fs was unmounted.  */
+#define IN_Q_OVERFLOW	 0x00004000	/* Event queued overflowed.  */
+#define IN_IGNORED	 0x00008000	/* File was ignored.  */
+
+/* Helper events.  */
+#define IN_CLOSE	 (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE)	/* Close.  */
+#define IN_MOVE		 (IN_MOVED_FROM | IN_MOVED_TO)		/* Moves.  */
+
+/* Special flags.  */
+#define IN_ONLYDIR	 0x01000000	/* Only watch the path if it is a
+					   directory.  */
+#define IN_DONT_FOLLOW	 0x02000000	/* Do not follow a sym link.  */
+#define IN_MASK_ADD	 0x20000000	/* Add to the mask of an already
+					   existing watch.  */
+#define IN_ISDIR	 0x40000000	/* Event occurred against dir.  */
+#define IN_ONESHOT	 0x80000000	/* Only send event once.  */
+
+/* All events which a program can wait on.  */
+#define IN_ALL_EVENTS	 (IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE  \
+			  | IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM	      \
+			  | IN_MOVED_TO | IN_CREATE | IN_DELETE		      \
+			  | IN_DELETE_SELF | IN_MOVE_SELF)
+
+
+__BEGIN_DECLS
+
+/* Create and initialize inotify instance.  */
+extern int inotify_init (void) __THROW;
+
+/* Create and initialize inotify instance.  */
+extern int inotify_init1 (int __flags) __THROW;
+
+/* Add watch of object NAME to inotify instance FD.  Notify about
+   events specified by MASK.  */
+extern int inotify_add_watch (int __fd, const char *__name, uint32_t __mask)
+  __THROW;
+
+/* Remove the watch specified by WD from the inotify instance FD.  */
+extern int inotify_rm_watch (int __fd, int __wd) __THROW;
+
+__END_DECLS
+
+#endif /* sys/inotify.h */
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/signalfd.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/signalfd.h	2011-10-30 11:44:30.000000000 -0400
@@ -0,0 +1,66 @@
+/* Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_SIGNALFD_H
+#define	_SYS_SIGNALFD_H	1
+
+#define __need_sigset_t
+#include <signal.h>
+#include <stdint.h>
+
+
+struct signalfd_siginfo
+{
+  uint32_t ssi_signo;
+  int32_t ssi_errno;
+  int32_t ssi_code;
+  uint32_t ssi_pid;
+  uint32_t ssi_uid;
+  int32_t ssi_fd;
+  uint32_t ssi_tid;
+  uint32_t ssi_band;
+  uint32_t ssi_overrun;
+  uint32_t ssi_trapno;
+  int32_t ssi_status;
+  int32_t ssi_int;
+  uint64_t ssi_ptr;
+  uint64_t ssi_utime;
+  uint64_t ssi_stime;
+  uint64_t ssi_addr;
+  uint8_t __pad[48];
+};
+
+/* Flags for signalfd.  */
+enum
+  {
+    SFD_CLOEXEC = 010000000,
+#define SFD_CLOEXEC SFD_CLOEXEC
+    SFD_NONBLOCK = 00200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define SFD_NONBLOCK SFD_NONBLOCK
+  };
+
+__BEGIN_DECLS
+
+/* Request notification for delivery of signals in MASK to be
+   performed using descriptor FD.*/
+extern int signalfd (int __fd, const sigset_t *__mask, int __flags)
+  __THROW __nonnull ((2));
+
+__END_DECLS
+
+#endif /* sys/signalfd.h */
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/timerfd.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/timerfd.h	2011-10-30 11:44:30.000000000 -0400
@@ -0,0 +1,60 @@
+/* Copyright (C) 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_TIMERFD_H
+#define	_SYS_TIMERFD_H	1
+
+#include <time.h>
+
+
+/* Bits to be set in the FLAGS parameter of `timerfd_create'.  */
+enum
+  {
+    TFD_CLOEXEC = 010000000,
+#define TFD_CLOEXEC TFD_CLOEXEC
+    TFD_NONBLOCK = 000200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define TFD_NONBLOCK TFD_NONBLOCK
+  };
+
+
+/* Bits to be set in the FLAGS parameter of `timerfd_settime'.  */
+enum
+  {
+    TFD_TIMER_ABSTIME = 1 << 0
+#define TFD_TIMER_ABSTIME TFD_TIMER_ABSTIME
+  };
+
+
+__BEGIN_DECLS
+
+/* Return file descriptor for new interval timer source.  */
+extern int timerfd_create (clockid_t __clock_id, int __flags) __THROW;
+
+/* Set next expiration time of interval timer source UFD to UTMR.  If
+   FLAGS has the TFD_TIMER_ABSTIME flag set the timeout value is
+   absolute.  Optionally return the old expiration time in OTMR.  */
+extern int timerfd_settime (int __ufd, int __flags,
+			    __const struct itimerspec *__utmr,
+			    struct itimerspec *__otmr) __THROW;
+
+/* Return the next expiration time of UFD.  */
+extern int timerfd_gettime (int __ufd, struct itimerspec *__otmr) __THROW;
+
+__END_DECLS
+
+#endif /* sys/timerfd.h */

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From - Thu Nov 08 21:07:42 2018
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From: Carlos O'Donell <carlos@systemhalted.org>
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Subject: Re: [PATCH] parisc: futex: Use same lock set as lws calls
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On 10/30/2011 9:36 PM, John David Anglin wrote:
> I've been wondering how much is left to install to glibc head?

I've pushed out almost all of glibc-ports into upstream.

There are probably a half-dozen patches against glibc proper for which I'm writing up submissions and making sure I don't impact x86 fast path.

Submitting patches to core glibc isn't like any other project :-)

Cheers,
Carlos.
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From - Thu Nov 08 21:07:42 2018
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On Mon, Oct 31, 2011 at 07:26:56PM -0400, John David Anglin wrote:
> On 31-Oct-11, at 5:41 AM, Domenico Andreoli wrote:
> 
> >I would like to redo the exercise on my j5600, are you building Debian
> >packages? Could you please share the sources? Thank you.
> 
> Attached are the hppa libc6 patches that I'm using.  The
> local-stack-grows-up.diff patch needs
> to be removed first, then the patches applied in order of date using
> quilt.
> 
> The last change resolves the udev bug.
> 
> I will send you offline the eglibc_2.13-10.dsc  and the
> eglibc_2.13-10.diff.gz.  The
> eglibc_2.13.orig.tar.gz file should still be available.

I'll give it a ride as soon as I can, thank you.

cheers,
Domenico
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From - Thu Nov 08 21:07:42 2018
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From: Domenico Andreoli <cavokz@gmail.com>
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Subject: Re: [PATCH] parisc: futex: Use same lock set as lws calls
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On Mon, Oct 31, 2011 at 10:15:06PM -0400, Carlos O'Donell wrote:
> On 10/30/2011 9:36 PM, John David Anglin wrote:
> > I've been wondering how much is left to install to glibc head?
> 
> I've pushed out almost all of glibc-ports into upstream.
> 
> There are probably a half-dozen patches against glibc proper for which I'm writing up submissions and making sure I don't impact x86 fast path.
> 
> Submitting patches to core glibc isn't like any other project :-)

glibc or eglibc?

cheers,
Domenico
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] parisc: futex: Use same lock set as lws calls
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On 11/1/2011 5:19 AM, Domenico Andreoli wrote:
> On Mon, Oct 31, 2011 at 10:15:06PM -0400, Carlos O'Donell wrote:
>> >  On 10/30/2011 9:36 PM, John David Anglin wrote:
>>> >  >  I've been wondering how much is left to install to glibc head?
>> >  
>> >  I've pushed out almost all of glibc-ports into upstream.
>> >  
>> >  There are probably a half-dozen patches against glibc proper for which I'm writing up submissions and making sure I don't impact x86 fast path.
>> >  
>> >  Submitting patches to core glibc isn't like any other project:-)
> glibc or eglibc?
Many of the debian packages that I have been building seem for cell phones,
so I understand the confusion 8-)

Dave

-- 
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From: akpm@linux-foundation.org
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Subject: [patch 1/1] parisc, exec: remove redundant set_fs(USER_DS)
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From: Mathias Krause <minipli@googlemail.com>
Subject: parisc, exec: remove redundant set_fs(USER_DS)

The address limit is already set in flush_old_exec() so those calls to
set_fs(USER_DS) are redundant.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/parisc/include/asm/processor.h |    2 --
 arch/parisc/kernel/process.c        |    1 -
 2 files changed, 3 deletions(-)

diff -puN arch/parisc/include/asm/processor.h~parisc-exec-remove-redundant-set_fsuser_ds arch/parisc/include/asm/processor.h
--- a/arch/parisc/include/asm/processor.h~parisc-exec-remove-redundant-set_fsuser_ds
+++ a/arch/parisc/include/asm/processor.h
@@ -196,7 +196,6 @@ typedef unsigned int elf_caddr_t;
 	/* offset pc for priv. level */			\
 	pc |= 3;					\
 							\
-	set_fs(USER_DS);				\
 	regs->iasq[0] = spaceid;			\
 	regs->iasq[1] = spaceid;			\
 	regs->iaoq[0] = pc;				\
@@ -299,7 +298,6 @@ on downward growing arches, it looks lik
 	elf_addr_t pc = (elf_addr_t)new_pc | 3;		\
 	elf_caddr_t *argv = (elf_caddr_t *)bprm->exec + 1;	\
 							\
-	set_fs(USER_DS);				\
 	regs->iasq[0] = spaceid;			\
 	regs->iasq[1] = spaceid;			\
 	regs->iaoq[0] = pc;				\
diff -puN arch/parisc/kernel/process.c~parisc-exec-remove-redundant-set_fsuser_ds arch/parisc/kernel/process.c
--- a/arch/parisc/kernel/process.c~parisc-exec-remove-redundant-set_fsuser_ds
+++ a/arch/parisc/kernel/process.c
@@ -192,7 +192,6 @@ void flush_thread(void)
 	/* Only needs to handle fpu stuff or perf monitors.
 	** REVISIT: several arches implement a "lazy fpu state".
 	*/
-	set_fs(USER_DS);
 }
 
 void release_thread(struct task_struct *dead_task)
_
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From - Thu Nov 08 21:07:42 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: TLB Miss Bug?
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As GCC has gotten larger with time, I started seeing hangs in the  
stage1 compilers when they are compiled
with no optimization.  This first was seen with gnat1.  I now see it  
with cc1 and cc1plus.

The hangs always occur at the same place (ldw,s instruction) in the  
GCC casesi insn pattern:

(gdb) disass $pc-16,$pc+16
Dump of assembler code from 0x45fbec4 to 0x45fbee4:
0x045fbec4 <cpp_spell_token+68>:	ldw 0(ret0),ret0
0x045fbec8 <cpp_spell_token+72>:	cmpib,<<,n 3,ret0,0x45fc168  
<cpp_spell_token+744>
0x045fbecc <cpp_spell_token+76>:	ldil L%45fb800,r19
0x045fbed0 <cpp_spell_token+80>:	ldo 6dc(r19),r19
=> 0x045fbed4 <cpp_spell_token+84>:	ldw,s ret0(r19),r19
0x045fbed8 <cpp_spell_token+88>:	bv,n r0(r19)
0x045fbedc <cpp_spell_token+92>:	# 45fbeec
0x045fbee0 <cpp_spell_token+96>:	# 45fbfc8

What is interesting about this instruction is that it usually involves  
an I and D access to the same page.

strace shows nothing for process.  gdb can't single step from the  
instruction.  A break at the next
instruction is never hit.

I see the following with sysrq-trigger:

cc1plus R running task 0 16932 16931 0x00000010
Backtrace:
timer_interrupt(CPU 1): delayed! cycles 77ED56D2 rem BD46F next/now  
411D1E1AE13C/411D1E0F0CCD

Note the delayed timer interrupt "always" seems to occur.  Also, see  
that the program isn't running kernel
code.

So, my theory is there is a bug in the TLB miss handling.  Somehow a  
data miss ejects the instruction entry,
and we get into a loop inserting I and D TLB entries.  Sometimes the  
machine gets out of the loop but it takes
hours.

I could probably fix this by moving the case offsets to a readonly  
data page, but this would make the code
sequence slightly longer.

Never seen the problem on HP-UX.

Dave
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From - Thu Nov 08 21:07:42 2018
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Subject: [PATCH-RFC 01/10] lib: move GENERIC_IOMAP to lib/Kconfig
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Cc: Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Russell King <linux@arm.linux.org.uk>,
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        Fenghua Yu <fenghua.yu@intel.com>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
        Jonas Bonn <jonas@southpole.se>,
        Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Chen Liqin <liqin.chen@sunplusct.com>,
        Lennox Wu <lennox.wu@gmail.com>,
To: unlisted-recipients:; (no To-header on input)
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/33080>

define GENERIC_IOMAP in a central location
instead of all architectures. This will be helpful
for the follow-up patch which makes it select
other configs. Code is also a bit shorter this way.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 arch/alpha/Kconfig             |    4 ----
 arch/cris/Kconfig              |    5 +----
 arch/hexagon/Kconfig           |    4 +---
 arch/ia64/Kconfig              |    5 +----
 arch/m68k/Kconfig              |    4 +---
 arch/openrisc/Kconfig          |    3 ---
 arch/powerpc/platforms/Kconfig |    3 ---
 arch/score/Kconfig             |    4 +---
 arch/sh/Kconfig                |    3 ---
 arch/unicore32/Kconfig         |    4 +---
 arch/x86/Kconfig               |    4 +---
 lib/Kconfig                    |    3 +++
 12 files changed, 10 insertions(+), 36 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 3d74801..3636b11 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -70,10 +70,6 @@ config GENERIC_ISA_DMA
 	bool
 	default y
 
-config GENERIC_IOMAP
-	bool
-	default n
-
 source "init/Kconfig"
 source "kernel/Kconfig.freezer"
 
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 408b055..b3abfb0 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -19,10 +19,6 @@ config GENERIC_CMOS_UPDATE
 config ARCH_USES_GETTIMEOFFSET
 	def_bool n
 
-config GENERIC_IOMAP
-       bool
-       default y
-
 config ARCH_HAS_ILOG2_U32
 	bool
 	default n
@@ -52,6 +48,7 @@ config CRIS
 	select HAVE_IDE
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_SHOW
+	select GENERIC_IOMAP
 
 config HZ
 	int
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 02513c2..9059e39 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -26,6 +26,7 @@ config HEXAGON
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_TRACEHOOK
 	select NO_IOPORT
+	select GENERIC_IOMAP
 	# mostly generic routines, with some accelerated ones
 	---help---
 	  Qualcomm Hexagon is a processor architecture designed for high
@@ -73,9 +74,6 @@ config GENERIC_CSUM
 config GENERIC_IRQ_PROBE
 	def_bool y
 
-config GENERIC_IOMAP
-	def_bool y
-
 #config ZONE_DMA
 #	bool
 #	default y
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 27489b6..2732e1b 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -29,6 +29,7 @@ config IA64
 	select GENERIC_IRQ_SHOW
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
+	select GENERIC_IOMAP
 	default y
 	help
 	  The Itanium Processor Family is Intel's 64-bit successor to
@@ -102,10 +103,6 @@ config EFI
 	bool
 	default y
 
-config GENERIC_IOMAP
-	bool
-	default y
-
 config ARCH_CLOCKSOURCE_DATA
 	def_bool y
 
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 361d540..973e686 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -38,9 +38,6 @@ config GENERIC_CALIBRATE_DELAY
 	bool
 	default y
 
-config GENERIC_IOMAP
-	def_bool MMU
-
 config TIME_LOW_RES
 	bool
 	default y
@@ -73,6 +70,7 @@ source "kernel/Kconfig.freezer"
 config MMU
 	bool "MMU-based Paged Memory Management Support"
 	default y
+	select GENERIC_IOMAP
 	help
 	  Select if you want MMU-based virtualised addressing space
 	  support by paged memory management. If unsure, say 'Y'.
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index e518a5a..081a54f 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -38,9 +38,6 @@ config RWSEM_XCHGADD_ALGORITHM
 config GENERIC_HWEIGHT
 	def_bool y
 
-config GENERIC_IOMAP
-	def_bool y
-
 config NO_IOPORT
 	def_bool y
 
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 3fe6d92..100feed 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -175,9 +175,6 @@ config PPC_INDIRECT_MMIO
 config PPC_IO_WORKAROUNDS
 	bool
 
-config GENERIC_IOMAP
-	bool
-
 source "drivers/cpufreq/Kconfig"
 
 menu "CPU Frequency drivers"
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index df169e8..455ce2d 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -4,6 +4,7 @@ config SCORE
        def_bool y
        select HAVE_GENERIC_HARDIRQS
        select GENERIC_IRQ_SHOW
+       select GENERIC_IOMAP
 
 choice
 	prompt "System type"
@@ -33,9 +34,6 @@ endmenu
 config CPU_SCORE7
 	bool
 
-config GENERIC_IOMAP
-	def_bool y
-
 config NO_DMA
 	bool
 	default y
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 5629e20..5aeab58 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -84,9 +84,6 @@ config GENERIC_GPIO
 config GENERIC_CALIBRATE_DELAY
 	bool
 
-config GENERIC_IOMAP
-	bool
-
 config GENERIC_CLOCKEVENTS
 	def_bool y
 
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 942ed61..eeb8054 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -12,6 +12,7 @@ config UNICORE32
 	select GENERIC_IRQ_PROBE
 	select GENERIC_IRQ_SHOW
 	select ARCH_WANT_FRAME_POINTERS
+	select GENERIC_IOMAP
 	help
 	  UniCore-32 is 32-bit Instruction Set Architecture,
 	  including a series of low-power-consumption RISC chip
@@ -30,9 +31,6 @@ config GENERIC_CLOCKEVENTS
 config GENERIC_CSUM
 	def_bool y
 
-config GENERIC_IOMAP
-	def_bool y
-
 config NO_IOPORT
 	bool
 
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index cb9a104..08af645 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -75,6 +75,7 @@ config X86
 	select HAVE_BPF_JIT if (X86_64 && NET)
 	select CLKEVT_I8253
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
+	select GENERIC_IOMAP
 
 config INSTRUCTION_DECODER
 	def_bool (KPROBES || PERF_EVENTS)
@@ -140,9 +141,6 @@ config NEED_SG_DMA_LENGTH
 config GENERIC_ISA_DMA
 	def_bool ISA_DMA_API
 
-config GENERIC_IOMAP
-	def_bool y
-
 config GENERIC_BUG
 	def_bool y
 	depends on BUG
diff --git a/lib/Kconfig b/lib/Kconfig
index 32f3e5a..0058927 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -19,6 +19,9 @@ config RATIONAL
 config GENERIC_FIND_FIRST_BIT
 	bool
 
+config GENERIC_IOMAP
+	bool
+
 config CRC_CCITT
 	tristate "CRC-CCITT functions"
 	help
-- 
1.7.5.53.gc233e




From - Thu Nov 08 21:07:42 2018
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Path: news.gmane.org!not-for-mail
From: "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.pci
Subject: [PATCH-RFC 02/10] lib: add GENERIC_PCI_IOMAP
Date: Thu, 24 Nov 2011 22:17:02 +0200
Lines: 236
Approved: news@gmane.org
Message-ID: <b5a1327dd8bb38f87cba7ae10b308ec3b63de66a.1322163031.git.mst@redhat.com>
References: <cover.1322163031.git.mst@redhat.com>
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Cc: Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Russell King <linux@arm.linux.org.uk>,
        Mikael Starvik <starvik@axis.com>,
        Jesper Nilsson <jesper.nilsson@axis.com>,
        Richard Kuo <rkuo@codeaurora.org>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
        Jonas Bonn <jonas@southpole.se>,
        Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Chen Liqin <liqin.chen@sunplusct.com>,
        Lennox Wu <lennox.wu@gmail.com>,
To: unlisted-recipients:; (no To-header on input)
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/33081>

Many architectures want a generic pci_iomap but
not the rest of iomap.c. Split that to a separate .c
file and add a new config symbol. select automatically
by GENERIC_IOMAP.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 include/asm-generic/io.h        |    5 +--
 include/asm-generic/iomap.h     |    7 +----
 include/asm-generic/pci_iomap.h |   26 +++++++++++++++++++++
 lib/Kconfig                     |    4 +++
 lib/Makefile                    |    1 +
 lib/iomap.c                     |   38 +-----------------------------
 lib/pci_iomap.c                 |   48 +++++++++++++++++++++++++++++++++++++++
 7 files changed, 85 insertions(+), 44 deletions(-)
 create mode 100644 include/asm-generic/pci_iomap.h
 create mode 100644 lib/pci_iomap.c

diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 9120887..c8a67345 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -19,6 +19,8 @@
 #include <asm-generic/iomap.h>
 #endif
 
+#include <asm-generic/pci_iomap.h>
+
 #ifndef mmiowb
 #define mmiowb() do {} while (0)
 #endif
@@ -283,9 +285,6 @@ static inline void writesb(const void __iomem *addr, const void *buf, int len)
 #define __io_virt(x) ((void __force *) (x))
 
 #ifndef CONFIG_GENERIC_IOMAP
-/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
-struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
 {
 }
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index 98dcd76..fdcddcb 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -69,16 +69,13 @@ extern void ioport_unmap(void __iomem *);
 #ifdef CONFIG_PCI
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
 #else
 struct pci_dev;
-static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
-	return NULL;
-}
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 { }
 #endif
 
+#include <asm-generic/pci_iomap.h>
+
 #endif
diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h
new file mode 100644
index 0000000..e08b3bd
--- /dev/null
+++ b/include/asm-generic/pci_iomap.h
@@ -0,0 +1,26 @@
+/* Generic I/O port emulation, based on MN10300 code
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef __ASM_GENERIC_PCI_IOMAP_H
+#define __ASM_GENERIC_PCI_IOMAP_H
+
+#ifdef CONFIG_PCI
+/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
+struct pci_dev;
+extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
+#else
+struct pci_dev;
+static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
+{
+	return NULL;
+}
+#endif
+
+#endif /* __ASM_GENERIC_IO_H */
diff --git a/lib/Kconfig b/lib/Kconfig
index 0058927..36884b4 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -19,8 +19,12 @@ config RATIONAL
 config GENERIC_FIND_FIRST_BIT
 	bool
 
+config GENERIC_PCI_IOMAP
+	bool
+
 config GENERIC_IOMAP
 	bool
+	select GENERIC_PCI_IOMAP
 
 config CRC_CCITT
 	tristate "CRC-CCITT functions"
diff --git a/lib/Makefile b/lib/Makefile
index a4da283..609b2adc 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -33,6 +33,7 @@ endif
 
 lib-$(CONFIG_HOTPLUG) += kobject_uevent.o
 obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
+obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o
 obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
 obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o
 obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
diff --git a/lib/iomap.c b/lib/iomap.c
index 5dbcb4b..ada922a 100644
--- a/lib/iomap.c
+++ b/lib/iomap.c
@@ -242,45 +242,11 @@ EXPORT_SYMBOL(ioport_unmap);
 #endif /* CONFIG_HAS_IOPORT */
 
 #ifdef CONFIG_PCI
-/**
- * pci_iomap - create a virtual mapping cookie for a PCI BAR
- * @dev: PCI device that owns the BAR
- * @bar: BAR number
- * @maxlen: length of the memory to map
- *
- * Using this function you will get a __iomem address to your device BAR.
- * You can access it using ioread*() and iowrite*(). These functions hide
- * the details if this is a MMIO or PIO address space and will just do what
- * you expect from them in the correct way.
- *
- * @maxlen specifies the maximum length to map. If you want to get access to
- * the complete BAR without checking for its length first, pass %0 here.
- * */
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM) {
-		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap(start, len);
-		return ioremap_nocache(start, len);
-	}
-	/* What? */
-	return NULL;
-}
-
+/* Hide the details if this is a MMIO or PIO address space and just do what
+ * you expect in the correct way. */
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
 	IO_COND(addr, /* nothing */, iounmap(addr));
 }
-EXPORT_SYMBOL(pci_iomap);
 EXPORT_SYMBOL(pci_iounmap);
 #endif /* CONFIG_PCI */
diff --git a/lib/pci_iomap.c b/lib/pci_iomap.c
new file mode 100644
index 0000000..40b26cb
--- /dev/null
+++ b/lib/pci_iomap.c
@@ -0,0 +1,48 @@
+/*
+ * Implement the default iomap interfaces
+ *
+ * (C) Copyright 2004 Linus Torvalds
+ */
+#include <linux/pci.h>
+#include <linux/io.h>
+
+#include <linux/module.h>
+
+#ifdef CONFIG_PCI
+/**
+ * pci_iomap - create a virtual mapping cookie for a PCI BAR
+ * @dev: PCI device that owns the BAR
+ * @bar: BAR number
+ * @maxlen: length of the memory to map
+ *
+ * Using this function you will get a __iomem address to your device BAR.
+ * You can access it using ioread*() and iowrite*(). These functions hide
+ * the details if this is a MMIO or PIO address space and will just do what
+ * you expect from them in the correct way.
+ *
+ * @maxlen specifies the maximum length to map. If you want to get access to
+ * the complete BAR without checking for its length first, pass %0 here.
+ * */
+void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
+{
+	resource_size_t start = pci_resource_start(dev, bar);
+	resource_size_t len = pci_resource_len(dev, bar);
+	unsigned long flags = pci_resource_flags(dev, bar);
+
+	if (!len || !start)
+		return NULL;
+	if (maxlen && len > maxlen)
+		len = maxlen;
+	if (flags & IORESOURCE_IO)
+		return ioport_map(start, len);
+	if (flags & IORESOURCE_MEM) {
+		if (flags & IORESOURCE_CACHEABLE)
+			return ioremap(start, len);
+		return ioremap_nocache(start, len);
+	}
+	/* What? */
+	return NULL;
+}
+
+EXPORT_SYMBOL(pci_iomap);
+#endif /* CONFIG_PCI */
-- 
1.7.5.53.gc233e




From - Thu Nov 08 21:07:42 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.pci
Subject: [PATCH-RFC 03/10] alpha: switch to GENERIC_PCI_IOMAP
Date: Thu, 24 Nov 2011 22:17:23 +0200
Lines: 76
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/33082>

alpha copied pci_iomap from generic code to avoid
pulling the rest of iomap.c in.  Since that's in
a separate file now, we can reuse the common implementation.

The only difference is handling of nocache flag,
that turns out to be done correctly by the
generic code since arch/alpha/include/asm/io.h
defines ioremap_nocache same as ioremap.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 arch/alpha/Kconfig      |    1 +
 arch/alpha/kernel/pci.c |   26 +-------------------------
 2 files changed, 2 insertions(+), 25 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 3636b11..56a4df9 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -315,6 +315,7 @@ config ISA_DMA_API
 config PCI
 	bool
 	depends on !ALPHA_JENSEN
+	select GENERIC_PCI_IOMAP
 	default y
 	help
 	  Find out whether you have a PCI motherboard. PCI is the name of a
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index c9ab94e..f3cae27 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -508,30 +508,7 @@ sys_pciconfig_iobase(long which, unsigned long bus, unsigned long dfn)
 	return -EOPNOTSUPP;
 }
 
-/* Create an __iomem token from a PCI BAR.  Copied from lib/iomap.c with
-   no changes, since we don't want the other things in that object file.  */
-
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM) {
-		/* Not checking IORESOURCE_CACHEABLE because alpha does
-		   not distinguish between ioremap and ioremap_nocache.  */
-		return ioremap(start, len);
-	}
-	return NULL;
-}
-
-/* Destroy that token.  Not copied from lib/iomap.c.  */
+/* Destroy an __iomem token.  Not copied from lib/iomap.c.  */
 
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
@@ -539,7 +516,6 @@ void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 		iounmap(addr);
 }
 
-EXPORT_SYMBOL(pci_iomap);
 EXPORT_SYMBOL(pci_iounmap);
 
 /* FIXME: Some boxes have multiple ISA bridges! */
-- 
1.7.5.53.gc233e




From - Thu Nov 08 21:07:42 2018
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From: "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.pci
Subject: [PATCH-RFC 04/10] arm: switch to GENERIC_PCI_IOMAP
Date: Thu, 24 Nov 2011 22:17:42 +0200
Lines: 80
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/33083>

arm copied pci_iomap from generic code, probably to avoid
pulling the rest of iomap.c in.  Since that's in
a separate file now, we can reuse the common implementation.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 arch/arm/Kconfig          |    1 +
 arch/arm/include/asm/io.h |    2 +-
 arch/arm/mm/iomap.c       |   21 ---------------------
 3 files changed, 2 insertions(+), 22 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 44789ef..2ebf66b 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -30,6 +30,7 @@ config ARM
 	select HAVE_SPARSE_IRQ
 	select GENERIC_IRQ_SHOW
 	select CPU_PM if (SUSPEND || CPU_IDLE)
+	select GENERIC_PCI_IOMAP
 	help
 	  The ARM series is a line of low-power-consumption RISC chip designs
 	  licensed by ARM Ltd and targeted at embedded applications and
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 065d100..9275828 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -27,6 +27,7 @@
 #include <asm/byteorder.h>
 #include <asm/memory.h>
 #include <asm/system.h>
+#include <asm-generic/pci_iomap.h>
 
 /*
  * ISA I/O bus memory addresses are 1:1 with the physical address.
@@ -306,7 +307,6 @@ extern void ioport_unmap(void __iomem *addr);
 
 struct pci_dev;
 
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen);
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr);
 
 /*
diff --git a/arch/arm/mm/iomap.c b/arch/arm/mm/iomap.c
index 430df1a..e62956e 100644
--- a/arch/arm/mm/iomap.c
+++ b/arch/arm/mm/iomap.c
@@ -35,27 +35,6 @@ EXPORT_SYMBOL(pcibios_min_mem);
 unsigned int pci_flags = PCI_REASSIGN_ALL_RSRC;
 EXPORT_SYMBOL(pci_flags);
 
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len   = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM) {
-		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap(start, len);
-		return ioremap_nocache(start, len);
-	}
-	return NULL;
-}
-EXPORT_SYMBOL(pci_iomap);
-
 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 {
 	if ((unsigned long)addr >= VMALLOC_START &&
-- 
1.7.5.53.gc233e




From - Thu Nov 08 21:07:42 2018
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From: "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.pci
Subject: [PATCH-RFC 05/10] microblaze: switch to GENERIC_PCI_IOMAP
Date: Thu, 24 Nov 2011 22:18:08 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/33084>

microblaze copied pci_iomap from generic code, probably to avoid
pulling the rest of iomap.c in.  Since that's in
a separate file now, we can reuse the common implementation.

The only difference is handling of nocache flag,
that turns out to be done correctly by the
generic code since arch/microblaze/include/asm/io.h
defines ioremap_nocache same as ioremap.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 arch/microblaze/Kconfig     |    1 +
 arch/microblaze/pci/iomap.c |   19 -------------------
 2 files changed, 1 insertions(+), 19 deletions(-)

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index e446bab..f0eead7 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -17,6 +17,7 @@ config MICROBLAZE
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_PROBE
 	select GENERIC_IRQ_SHOW
+	select GENERIC_PCI_IOMAP
 
 config SWAP
 	def_bool n
diff --git a/arch/microblaze/pci/iomap.c b/arch/microblaze/pci/iomap.c
index 57acda8..b07abba 100644
--- a/arch/microblaze/pci/iomap.c
+++ b/arch/microblaze/pci/iomap.c
@@ -10,25 +10,6 @@
 #include <asm/io.h>
 #include <asm/pci-bridge.h>
 
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len)
-		return NULL;
-	if (max && len > max)
-		len = max;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM)
-		return ioremap(start, len);
-	/* What? */
-	return NULL;
-}
-EXPORT_SYMBOL(pci_iomap);
-
 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 {
 	if (isa_vaddr_is_ioport(addr))
-- 
1.7.5.53.gc233e




From - Thu Nov 08 21:07:42 2018
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X-Mozilla-Keys:                                                                                 
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From: "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.pci
Subject: [PATCH-RFC 06/10] mips: switch to GENERIC_PCI_IOMAP
Date: Thu, 24 Nov 2011 22:18:37 +0200
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/33085>

mips copied pci_iomap from generic code, probably to avoid
pulling the rest of iomap.c in.  Since that's in
a separate file now, we can reuse the common implementation.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 arch/mips/Kconfig         |    1 +
 arch/mips/lib/iomap-pci.c |   26 --------------------------
 2 files changed, 1 insertions(+), 26 deletions(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index d46f1da..b70c96f 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2317,6 +2317,7 @@ config PCI
 	bool "Support for PCI controller"
 	depends on HW_HAS_PCI
 	select PCI_DOMAINS
+	select GENERIC_PCI_IOMAP
 	help
 	  Find out whether you have a PCI motherboard. PCI is the name of a
 	  bus system, i.e. the way the CPU talks to the other stuff inside
diff --git a/arch/mips/lib/iomap-pci.c b/arch/mips/lib/iomap-pci.c
index 2ab899c..2635b1a 100644
--- a/arch/mips/lib/iomap-pci.c
+++ b/arch/mips/lib/iomap-pci.c
@@ -40,32 +40,6 @@ static void __iomem *ioport_map_pci(struct pci_dev *dev,
 	return (void __iomem *) (ctrl->io_map_base + port);
 }
 
-/*
- * Create a virtual mapping cookie for a PCI BAR (memory or IO)
- */
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-	if (flags & IORESOURCE_IO)
-		return ioport_map_pci(dev, start, len);
-	if (flags & IORESOURCE_MEM) {
-		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap(start, len);
-		return ioremap_nocache(start, len);
-	}
-	/* What? */
-	return NULL;
-}
-
-EXPORT_SYMBOL(pci_iomap);
-
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
 	iounmap(addr);
-- 
1.7.5.53.gc233e




From - Thu Nov 08 21:07:43 2018
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X-Mozilla-Keys:                                                                                 
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From: "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.pci
Subject: [PATCH-RFC 07/10] parisc: switch to GENERIC_PCI_IOMAP
Date: Thu, 24 Nov 2011 22:19:34 +0200
Lines: 66
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/33086>

parisc copied pci_iomap from generic code, probably to avoid
pulling the rest of iomap.c in.  Since that's in
a separate file now, we can reuse the common implementation.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 arch/parisc/Kconfig     |    1 +
 arch/parisc/lib/iomap.c |   23 -----------------------
 2 files changed, 1 insertions(+), 23 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index fdfd8be..242a1b7 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -14,6 +14,7 @@ config PARISC
 	select GENERIC_ATOMIC64 if !64BIT
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_PROBE
+	select GENERIC_PCI_IOMAP
 	select IRQ_PER_CPU
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 
diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index 8f470c9..fb8e10a 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -436,28 +436,6 @@ void ioport_unmap(void __iomem *addr)
 	}
 }
 
-/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM) {
-		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap(start, len);
-		return ioremap_nocache(start, len);
-	}
-	/* What? */
-	return NULL;
-}
-
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
 	if (!INDIRECT_ADDR(addr)) {
@@ -483,5 +461,4 @@ EXPORT_SYMBOL(iowrite16_rep);
 EXPORT_SYMBOL(iowrite32_rep);
 EXPORT_SYMBOL(ioport_map);
 EXPORT_SYMBOL(ioport_unmap);
-EXPORT_SYMBOL(pci_iomap);
 EXPORT_SYMBOL(pci_iounmap);
-- 
1.7.5.53.gc233e




From - Thu Nov 08 21:07:43 2018
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X-Mozilla-Keys:                                                                                 
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From: "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.pci
Subject: [PATCH-RFC 08/10] powerpc: switch to GENERIC_PCI_IOMAP
Date: Thu, 24 Nov 2011 22:19:54 +0200
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        Russell King <linux@arm.linux.org.uk>,
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powerpc copied pci_iomap from generic code, probably to avoid
pulling the rest of iomap.c in.  Since that's in
a separate file now, we can reuse the common implementation.

The only difference is handling of nocache flag,
that turns out to be done correctly by the
generic code since arch/powerpc/include/asm/io.h
defines ioremap_nocache same as ioremap.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 arch/powerpc/Kconfig        |    1 +
 arch/powerpc/kernel/iomap.c |   19 -------------------
 2 files changed, 1 insertions(+), 19 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 951e18f..6ffe3df 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -710,6 +710,7 @@ config PCI
 	default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
 	default PCI_QSPAN if !4xx && !CPM2 && 8xx
 	select ARCH_SUPPORTS_MSI
+	select GENERIC_PCI_IOMAP
 	help
 	  Find out whether your system includes a PCI bus. PCI is the name of
 	  a bus system, i.e. the way the CPU talks to the other stuff inside
diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c
index 2627918..97a3715 100644
--- a/arch/powerpc/kernel/iomap.c
+++ b/arch/powerpc/kernel/iomap.c
@@ -119,24 +119,6 @@ EXPORT_SYMBOL(ioport_map);
 EXPORT_SYMBOL(ioport_unmap);
 
 #ifdef CONFIG_PCI
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len)
-		return NULL;
-	if (max && len > max)
-		len = max;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM)
-		return ioremap(start, len);
-	/* What? */
-	return NULL;
-}
-
 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 {
 	if (isa_vaddr_is_ioport(addr))
@@ -146,6 +128,5 @@ void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 	iounmap(addr);
 }
 
-EXPORT_SYMBOL(pci_iomap);
 EXPORT_SYMBOL(pci_iounmap);
 #endif /* CONFIG_PCI */
-- 
1.7.5.53.gc233e




From - Thu Nov 08 21:07:43 2018
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.pci
Subject: [PATCH-RFC 09/10] sh: switch to GENERIC_PCI_IOMAP
Date: Thu, 24 Nov 2011 22:20:37 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/33088>

sh copied pci_iomap from generic code, probably to avoid
pulling the rest of iomap.c in.  Since that's in
a separate file now, we can reuse the common implementation.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 arch/sh/Kconfig           |    1 +
 arch/sh/drivers/pci/pci.c |   23 -----------------------
 2 files changed, 1 insertions(+), 23 deletions(-)

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 5aeab58..ead1640 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -857,6 +857,7 @@ config PCI
 	bool "PCI support"
 	depends on SYS_SUPPORTS_PCI
 	select PCI_DOMAINS
+	select GENERIC_PCI_IOMAP
 	help
 	  Find out whether you have a PCI motherboard. PCI is the name of a
 	  bus system, i.e. the way the CPU talks to the other stuff inside
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index c2691af..11aaf2f 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -393,29 +393,6 @@ static void __iomem *ioport_map_pci(struct pci_dev *dev,
 	return (void __iomem *)(chan->io_map_base + port);
 }
 
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (unlikely(!len || !start))
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-
-	if (flags & IORESOURCE_IO)
-		return ioport_map_pci(dev, start, len);
-	if (flags & IORESOURCE_MEM) {
-		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap(start, len);
-		return ioremap_nocache(start, len);
-	}
-
-	return NULL;
-}
-EXPORT_SYMBOL(pci_iomap);
-
 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 {
 	iounmap(addr);
-- 
1.7.5.53.gc233e




From - Thu Nov 08 21:07:43 2018
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From: "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.pci
Subject: [PATCH-RFC 10/10] sparc: switch to GENERIC_PCI_IOMAP
Date: Thu, 24 Nov 2011 22:21:27 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/33089>

sparc copied pci_iomap from generic code, probably to avoid
pulling the rest of iomap.c in.  Since that's in
a separate file now, we can reuse the common implementation.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 arch/sparc/Kconfig             |    1 +
 arch/sparc/include/asm/io_32.h |    5 ++++-
 arch/sparc/include/asm/io_64.h |    5 ++++-
 arch/sparc/lib/iomap.c         |   23 -----------------------
 4 files changed, 9 insertions(+), 25 deletions(-)

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index f92602e..a4644f5 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -28,6 +28,7 @@ config SPARC
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_SHOW
 	select USE_GENERIC_SMP_HELPERS if SMP
+	select GENERIC_PCI_IOMAP
 
 config SPARC32
 	def_bool !64BIT
diff --git a/arch/sparc/include/asm/io_32.h b/arch/sparc/include/asm/io_32.h
index c2ced21..9be8778 100644
--- a/arch/sparc/include/asm/io_32.h
+++ b/arch/sparc/include/asm/io_32.h
@@ -8,6 +8,10 @@
 #include <asm/page.h>      /* IO address mapping routines need this */
 #include <asm/system.h>
 
+#ifdef __KERNEL__
+#include <asm-generic/pci_iomap.h>
+#endif
+
 #define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
 
 static inline u32 flip_dword (u32 l)
@@ -324,7 +328,6 @@ extern void ioport_unmap(void __iomem *);
 
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
 
 /*
diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index 9c89654..19cd51d 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -9,6 +9,10 @@
 #include <asm/system.h>
 #include <asm/asi.h>
 
+#ifdef __KERNEL__
+#include <asm-generic/pci_iomap.h>
+#endif
+
 /* PC crapola... */
 #define __SLOW_DOWN_IO	do { } while (0)
 #define SLOW_DOWN_IO	do { } while (0)
@@ -514,7 +518,6 @@ extern void ioport_unmap(void __iomem *);
 
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
 
 static inline int sbus_can_dma_64bit(void)
diff --git a/arch/sparc/lib/iomap.c b/arch/sparc/lib/iomap.c
index 9ef37e1..c4d42a5 100644
--- a/arch/sparc/lib/iomap.c
+++ b/arch/sparc/lib/iomap.c
@@ -18,31 +18,8 @@ void ioport_unmap(void __iomem *addr)
 EXPORT_SYMBOL(ioport_map);
 EXPORT_SYMBOL(ioport_unmap);
 
-/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM) {
-		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap(start, len);
-		return ioremap_nocache(start, len);
-	}
-	/* What? */
-	return NULL;
-}
-
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
 	/* nothing to do */
 }
-EXPORT_SYMBOL(pci_iomap);
 EXPORT_SYMBOL(pci_iounmap);
-- 
1.7.5.53.gc233e



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Subject: Re: [PATCH-RFC 02/10] lib: add GENERIC_PCI_IOMAP
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On Thursday 24 November 2011 22:17:02 Michael S. Tsirkin wrote:
> Many architectures want a generic pci_iomap but
> not the rest of iomap.c. Split that to a separate .c
> file and add a new config symbol. select automatically
> by GENERIC_IOMAP.
> 
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

Very nice!

Acked-by: Arnd Bergmann <arnd@arndb.de>



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Subject: Re: [PATCH-RFC 02/10] lib: add GENERIC_PCI_IOMAP
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To: "Michael S. Tsirkin" <mst@redhat.com>
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Hi Michael,

On Thu, 24 Nov 2011 22:17:02 +0200 "Michael S. Tsirkin" <mst@redhat.com> wr=
ote:
>
> diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
> index 9120887..c8a67345 100644
> --- a/include/asm-generic/io.h
> +++ b/include/asm-generic/io.h
> @@ -19,6 +19,8 @@
>  #include <asm-generic/iomap.h>
>  #endif
> =20
> +#include <asm-generic/pci_iomap.h>
> +
>  #ifndef mmiowb
>  #define mmiowb() do {} while (0)
>  #endif
> @@ -283,9 +285,6 @@ static inline void writesb(const void __iomem *addr, =
const void *buf, int len)
>  #define __io_virt(x) ((void __force *) (x))
> =20
>  #ifndef CONFIG_GENERIC_IOMAP
> -/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
> -struct pci_dev;
> -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned lo=
ng max);
>  static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
>  {
>  }

Just wondering why you move pci_iomap but not pic_iounmap.  And also if
pci_iounmap is meant to stay here, then the "struct pci_dev" should
probably stay as well.

> diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
> index 98dcd76..fdcddcb 100644
> --- a/include/asm-generic/iomap.h
> +++ b/include/asm-generic/iomap.h
> @@ -69,16 +69,13 @@ extern void ioport_unmap(void __iomem *);
>  #ifdef CONFIG_PCI
>  /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
>  struct pci_dev;
> -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned lo=
ng max);
>  extern void pci_iounmap(struct pci_dev *dev, void __iomem *);

Ditto with pci_iounmap.  Also the comment above really belongs with pci_iom=
ap.

> diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_io=
map.h
> new file mode 100644
> index 0000000..e08b3bd
> --- /dev/null
> +++ b/include/asm-generic/pci_iomap.h
> @@ -0,0 +1,26 @@
> +/* Generic I/O port emulation, based on MN10300 code
> + *
> + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
> + * Written by David Howells (dhowells@redhat.com)
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public Licence
> + * as published by the Free Software Foundation; either version
> + * 2 of the Licence, or (at your option) any later version.
> + */
> +#ifndef __ASM_GENERIC_PCI_IOMAP_H
> +#define __ASM_GENERIC_PCI_IOMAP_H
> +
> +#ifdef CONFIG_PCI
> +/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
> +struct pci_dev;

You could move this struct declaration above the ifdef and remove the
duplicate below.

> +extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned lo=
ng max);
> +#else
> +struct pci_dev;
> +static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsi=
gned long max)
> +{
> +	return NULL;
> +}
> +#endif
> +
> +#endif /* __ASM_GENERIC_IO_H */
> diff --git a/lib/iomap.c b/lib/iomap.c
> index 5dbcb4b..ada922a 100644
> --- a/lib/iomap.c
> +++ b/lib/iomap.c
> @@ -242,45 +242,11 @@ EXPORT_SYMBOL(ioport_unmap);
>  #endif /* CONFIG_HAS_IOPORT */
> =20
>  #ifdef CONFIG_PCI
> -/**
> - * pci_iomap - create a virtual mapping cookie for a PCI BAR
> - * @dev: PCI device that owns the BAR
> - * @bar: BAR number
> - * @maxlen: length of the memory to map
> - *
> - * Using this function you will get a __iomem address to your device BAR.
> - * You can access it using ioread*() and iowrite*(). These functions hide
> - * the details if this is a MMIO or PIO address space and will just do w=
hat
> - * you expect from them in the correct way.
> - *
> - * @maxlen specifies the maximum length to map. If you want to get acces=
s to
> - * the complete BAR without checking for its length first, pass %0 here.
> - * */
> -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxl=
en)
> -{
> -	resource_size_t start =3D pci_resource_start(dev, bar);
> -	resource_size_t len =3D pci_resource_len(dev, bar);
> -	unsigned long flags =3D pci_resource_flags(dev, bar);
> -
> -	if (!len || !start)
> -		return NULL;
> -	if (maxlen && len > maxlen)
> -		len =3D maxlen;
> -	if (flags & IORESOURCE_IO)
> -		return ioport_map(start, len);
> -	if (flags & IORESOURCE_MEM) {
> -		if (flags & IORESOURCE_CACHEABLE)
> -			return ioremap(start, len);
> -		return ioremap_nocache(start, len);
> -	}
> -	/* What? */
> -	return NULL;
> -}
> -
> +/* Hide the details if this is a MMIO or PIO address space and just do w=
hat
> + * you expect in the correct way. */
>  void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
>  {
>  	IO_COND(addr, /* nothing */, iounmap(addr));
>  }
> -EXPORT_SYMBOL(pci_iomap);
>  EXPORT_SYMBOL(pci_iounmap);

Ditto with pci_iounmap

> diff --git a/lib/pci_iomap.c b/lib/pci_iomap.c
> new file mode 100644
> index 0000000..40b26cb
> --- /dev/null
> +++ b/lib/pci_iomap.c
> @@ -0,0 +1,48 @@
> +/*
> + * Implement the default iomap interfaces
> + *
> + * (C) Copyright 2004 Linus Torvalds
> + */
> +#include <linux/pci.h>
> +#include <linux/io.h>
> +
> +#include <linux/module.h>

If this is relative to (at least) v3.2-rc1, then you should use export.h
instead of module.h

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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From - Thu Nov 08 21:07:43 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.pci,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.cross-arch,gmane.linux.uclinux.microblaze,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha
Subject: Re: [PATCH-RFC 02/10] lib: add GENERIC_PCI_IOMAP
Date: Fri, 25 Nov 2011 11:59:21 +1100
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Cc: Nicolas Pitre <nicolas.pitre@linaro.org>, linux-mips@linux-mips.org,
 linux-m68k@vger.kernel.org, linux-ia64@vger.kernel.org,
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To: "Michael S. Tsirkin" <mst@redhat.com>
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Hi Michael,

On Fri, 25 Nov 2011 11:54:55 +1100 Stephen Rothwell <sfr@canb.auug.org.au> =
wrote:
>
> Just wondering why you move pci_iomap but not pic_iounmap.

I figured this out.  Arches have their own.

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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_______________________________________________
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Subject: Re: [PATCH-RFC 01/10] lib: move GENERIC_IOMAP to lib/Kconfig
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To: "Michael S. Tsirkin" <mst@redhat.com>
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On Thu, Nov 24, 2011 at 09:15:42PM +0100, Michael S. Tsirkin wrote:
> define GENERIC_IOMAP in a central location
> instead of all architectures. This will be helpful
> for the follow-up patch which makes it select
> other configs. Code is also a bit shorter this way.
>=20
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

For the CRIS part:

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

/^JN - Jesper Nilsson
--=20
               Jesper Nilsson -- jesper.nilsson@axis.com

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On 24-Nov-11, at 8:16 AM, John David Anglin wrote:

> So, my theory is there is a bug in the TLB miss handling.  Somehow a  
> data miss ejects the instruction entry,
> and we get into a loop inserting I and D TLB entries.  Sometimes the  
> machine gets out of the loop but it takes
> hours.


The TLB conf is:

D-TLB conf: sh 3 page 1 cst 1 aid 0 pad1 0
I-TLB conf: sh 3 page 1 cst 1 aid 3 pad1 0

I believe the sh value indicates either pitlb or pdtld may be used  
(i.e., there is just one shared tlb) on rp3440.
Thus, the above scenario seems possible.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Thu, 2011-11-24 at 08:16 -0500, John David Anglin wrote:
> As GCC has gotten larger with time, I started seeing hangs in the  
> stage1 compilers when they are compiled
> with no optimization.  This first was seen with gnat1.  I now see it  
> with cc1 and cc1plus.
> 
> The hangs always occur at the same place (ldw,s instruction) in the  
> GCC casesi insn pattern:
> 
> (gdb) disass $pc-16,$pc+16
> Dump of assembler code from 0x45fbec4 to 0x45fbee4:
> 0x045fbec4 <cpp_spell_token+68>:	ldw 0(ret0),ret0
> 0x045fbec8 <cpp_spell_token+72>:	cmpib,<<,n 3,ret0,0x45fc168  
> <cpp_spell_token+744>
> 0x045fbecc <cpp_spell_token+76>:	ldil L%45fb800,r19
> 0x045fbed0 <cpp_spell_token+80>:	ldo 6dc(r19),r19
> => 0x045fbed4 <cpp_spell_token+84>:	ldw,s ret0(r19),r19
> 0x045fbed8 <cpp_spell_token+88>:	bv,n r0(r19)
> 0x045fbedc <cpp_spell_token+92>:	# 45fbeec
> 0x045fbee0 <cpp_spell_token+96>:	# 45fbfc8
> 
> What is interesting about this instruction is that it usually involves  
> an I and D access to the same page.

> strace shows nothing for process.  gdb can't single step from the  
> instruction.  A break at the next
> instruction is never hit.
> 
> I see the following with sysrq-trigger:
> 
> cc1plus R running task 0 16932 16931 0x00000010
> Backtrace:
> timer_interrupt(CPU 1): delayed! cycles 77ED56D2 rem BD46F next/now  
> 411D1E1AE13C/411D1E0F0CCD
> 
> Note the delayed timer interrupt "always" seems to occur.  Also, see  
> that the program isn't running kernel
> code.
> 
> So, my theory is there is a bug in the TLB miss handling.  Somehow a  
> data miss ejects the instruction entry,
> and we get into a loop inserting I and D TLB entries.  Sometimes the  
> machine gets out of the loop but it takes
> hours.

I'm still a bit Jetlagged from a customer trip to Germany, but this
looks entirely possible: Appendix F says that a later TLB insertion
purges an earlier one, so I'd say in a combined I/D TLB inserting
consecutive I and D entries purges the I.

It looks like a fix might be to insert TLB entries supporting both data
and instruction access in the combined TLB case.

James


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Subject: Re: TLB Miss Bug?
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On 26-Nov-11, at 7:35 PM, John David Anglin wrote:

> On 25-Nov-11, at 10:18 PM, James Bottomley wrote:
>
>> I'm still a bit Jetlagged from a customer trip to Germany, but this
>> looks entirely possible: Appendix F says that a later TLB insertion
>> purges an earlier one, so I'd say in a combined I/D TLB inserting
>> consecutive I and D entries purges the I.
>>
>> It looks like a fix might be to insert TLB entries supporting both  
>> data
>> and instruction access in the combined TLB case.
>
> In looking at the code, I couldn't see why the I and D entries would  
> differ.
> Except for the dtlb_check_alias_20w check, the I and D handlers appear
> identical.  Maybe the hardware can't handle this case.
>
> Don't understand this comment:
>
>        /*
>         * I miss is a little different, since we allow users to fault
>         * on the gateway page which is in the kernel address space.
>         */
>
> There is also a typo in this comment:
>
>         * Then incredible subtlety: The access rights are
>         * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
>
> I believe the last bit should be _PAGE_WRITE.

I just realized there is a difference.  In the I case, va and spc are  
loaded
from %pcoq and %pcsq, respectively.  In the D case, they are loaded from
%ior and %isr.  I haven't wrapped my head around this but space_adjust
may not be handling the b field correctly (D case)

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:07:43 2018
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From: Cong Wang <amwang@redhat.com>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc
Subject: [PATCH 61/62] highmem: kill all __kmap_atomic()
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Cc: Nicolas Pitre <nicolas.pitre@linaro.org>, linux-mips@linux-mips.org,
 Cong Wang <amwang@redhat.com>, David Howells <dhowells@redhat.com>,
 Paul Gortmaker <paul.gortmaker@windriver.com>,
 James Bottomley <James.Bottomley@suse.de>, Paul Mackerras <paulus@samba.org>,
 "H. Peter Anvin" <hpa@zytor.com>, sparclinux@vger.kernel.org,
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 linuxppc-dev@
To: linux-kernel@vger.kernel.org
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Signed-off-by: Cong Wang <amwang@redhat.com>
---
 arch/arm/mm/highmem.c                |    4 ++--
 arch/frv/include/asm/highmem.h       |    2 +-
 arch/frv/mm/highmem.c                |    4 ++--
 arch/mips/include/asm/highmem.h      |    2 +-
 arch/mips/mm/highmem.c               |    4 ++--
 arch/mn10300/include/asm/highmem.h   |    2 +-
 arch/parisc/include/asm/cacheflush.h |    2 +-
 arch/powerpc/include/asm/highmem.h   |    2 +-
 arch/sparc/include/asm/highmem.h     |    2 +-
 arch/sparc/mm/highmem.c              |    4 ++--
 arch/tile/include/asm/highmem.h      |    2 +-
 arch/tile/mm/highmem.c               |    4 ++--
 arch/x86/include/asm/highmem.h       |    2 +-
 arch/x86/mm/highmem_32.c             |    4 ++--
 include/linux/highmem.h              |   11 +++--------
 15 files changed, 23 insertions(+), 28 deletions(-)

diff --git a/arch/arm/mm/highmem.c b/arch/arm/mm/highmem.c
index 807c057..5a21505 100644
--- a/arch/arm/mm/highmem.c
+++ b/arch/arm/mm/highmem.c
@@ -36,7 +36,7 @@ void kunmap(struct page *page)
 }
 EXPORT_SYMBOL(kunmap);
 
-void *__kmap_atomic(struct page *page)
+void *kmap_atomic(struct page *page)
 {
 	unsigned int idx;
 	unsigned long vaddr;
@@ -81,7 +81,7 @@ void *__kmap_atomic(struct page *page)
 
 	return (void *)vaddr;
 }
-EXPORT_SYMBOL(__kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic);
 
 void __kunmap_atomic(void *kvaddr)
 {
diff --git a/arch/frv/include/asm/highmem.h b/arch/frv/include/asm/highmem.h
index a8d6565..716956a 100644
--- a/arch/frv/include/asm/highmem.h
+++ b/arch/frv/include/asm/highmem.h
@@ -157,7 +157,7 @@ static inline void kunmap_atomic_primary(void *kvaddr, enum km_type type)
 	pagefault_enable();
 }
 
-void *__kmap_atomic(struct page *page);
+void *kmap_atomic(struct page *page);
 void __kunmap_atomic(void *kvaddr);
 
 #endif /* !__ASSEMBLY__ */
diff --git a/arch/frv/mm/highmem.c b/arch/frv/mm/highmem.c
index fd7fcd4..31902c9 100644
--- a/arch/frv/mm/highmem.c
+++ b/arch/frv/mm/highmem.c
@@ -37,7 +37,7 @@ struct page *kmap_atomic_to_page(void *ptr)
 	return virt_to_page(ptr);
 }
 
-void *__kmap_atomic(struct page *page)
+void *kmap_atomic(struct page *page)
 {
 	unsigned long paddr;
 	int type;
@@ -64,7 +64,7 @@ void *__kmap_atomic(struct page *page)
 		return NULL;
 	}
 }
-EXPORT_SYMBOL(__kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic);
 
 void __kunmap_atomic(void *kvaddr)
 {
diff --git a/arch/mips/include/asm/highmem.h b/arch/mips/include/asm/highmem.h
index 77e6440..2d91888 100644
--- a/arch/mips/include/asm/highmem.h
+++ b/arch/mips/include/asm/highmem.h
@@ -47,7 +47,7 @@ extern void kunmap_high(struct page *page);
 
 extern void *kmap(struct page *page);
 extern void kunmap(struct page *page);
-extern void *__kmap_atomic(struct page *page);
+extern void *kmap_atomic(struct page *page);
 extern void __kunmap_atomic(void *kvaddr);
 extern void *kmap_atomic_pfn(unsigned long pfn);
 extern struct page *kmap_atomic_to_page(void *ptr);
diff --git a/arch/mips/mm/highmem.c b/arch/mips/mm/highmem.c
index 3634c7e..aff5705 100644
--- a/arch/mips/mm/highmem.c
+++ b/arch/mips/mm/highmem.c
@@ -41,7 +41,7 @@ EXPORT_SYMBOL(kunmap);
  * kmaps are appropriate for short, tight code paths only.
  */
 
-void *__kmap_atomic(struct page *page)
+void *kmap_atomic(struct page *page)
 {
 	unsigned long vaddr;
 	int idx, type;
@@ -62,7 +62,7 @@ void *__kmap_atomic(struct page *page)
 
 	return (void*) vaddr;
 }
-EXPORT_SYMBOL(__kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic);
 
 void __kunmap_atomic(void *kvaddr)
 {
diff --git a/arch/mn10300/include/asm/highmem.h b/arch/mn10300/include/asm/highmem.h
index bfe2d88..7c137cd 100644
--- a/arch/mn10300/include/asm/highmem.h
+++ b/arch/mn10300/include/asm/highmem.h
@@ -70,7 +70,7 @@ static inline void kunmap(struct page *page)
  * be used in IRQ contexts, so in some (very limited) cases we need
  * it.
  */
-static inline unsigned long __kmap_atomic(struct page *page)
+static inline unsigned long kmap_atomic(struct page *page)
 {
 	unsigned long vaddr;
 	int idx, type;
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index da601dd..9f21ab0 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -140,7 +140,7 @@ static inline void *kmap(struct page *page)
 
 #define kunmap(page)			kunmap_parisc(page_address(page))
 
-static inline void *__kmap_atomic(struct page *page)
+static inline void *kmap_atomic(struct page *page)
 {
 	pagefault_disable();
 	return page_address(page);
diff --git a/arch/powerpc/include/asm/highmem.h b/arch/powerpc/include/asm/highmem.h
index dbc2640..caaf6e0 100644
--- a/arch/powerpc/include/asm/highmem.h
+++ b/arch/powerpc/include/asm/highmem.h
@@ -79,7 +79,7 @@ static inline void kunmap(struct page *page)
 	kunmap_high(page);
 }
 
-static inline void *__kmap_atomic(struct page *page)
+static inline void *kmap_atomic(struct page *page)
 {
 	return kmap_atomic_prot(page, kmap_prot);
 }
diff --git a/arch/sparc/include/asm/highmem.h b/arch/sparc/include/asm/highmem.h
index 3d7afbb..3b6e00d 100644
--- a/arch/sparc/include/asm/highmem.h
+++ b/arch/sparc/include/asm/highmem.h
@@ -70,7 +70,7 @@ static inline void kunmap(struct page *page)
 	kunmap_high(page);
 }
 
-extern void *__kmap_atomic(struct page *page);
+extern void *kmap_atomic(struct page *page);
 extern void __kunmap_atomic(void *kvaddr);
 extern struct page *kmap_atomic_to_page(void *vaddr);
 
diff --git a/arch/sparc/mm/highmem.c b/arch/sparc/mm/highmem.c
index 77140a0..055c66c 100644
--- a/arch/sparc/mm/highmem.c
+++ b/arch/sparc/mm/highmem.c
@@ -30,7 +30,7 @@
 #include <asm/tlbflush.h>
 #include <asm/fixmap.h>
 
-void *__kmap_atomic(struct page *page)
+void *kmap_atomic(struct page *page)
 {
 	unsigned long vaddr;
 	long idx, type;
@@ -64,7 +64,7 @@ void *__kmap_atomic(struct page *page)
 
 	return (void*) vaddr;
 }
-EXPORT_SYMBOL(__kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic);
 
 void __kunmap_atomic(void *kvaddr)
 {
diff --git a/arch/tile/include/asm/highmem.h b/arch/tile/include/asm/highmem.h
index b2a6c5d..fc8429a 100644
--- a/arch/tile/include/asm/highmem.h
+++ b/arch/tile/include/asm/highmem.h
@@ -59,7 +59,7 @@ void *kmap_fix_kpte(struct page *page, int finished);
 /* This macro is used only in map_new_virtual() to map "page". */
 #define kmap_prot page_to_kpgprot(page)
 
-void *__kmap_atomic(struct page *page);
+void *kmap_atomic(struct page *page);
 void __kunmap_atomic(void *kvaddr);
 void *kmap_atomic_pfn(unsigned long pfn);
 void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
diff --git a/arch/tile/mm/highmem.c b/arch/tile/mm/highmem.c
index 31dbbd9..ef8e5a6 100644
--- a/arch/tile/mm/highmem.c
+++ b/arch/tile/mm/highmem.c
@@ -224,12 +224,12 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot)
 }
 EXPORT_SYMBOL(kmap_atomic_prot);
 
-void *__kmap_atomic(struct page *page)
+void *kmap_atomic(struct page *page)
 {
 	/* PAGE_NONE is a magic value that tells us to check immutability. */
 	return kmap_atomic_prot(page, PAGE_NONE);
 }
-EXPORT_SYMBOL(__kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic);
 
 void __kunmap_atomic(void *kvaddr)
 {
diff --git a/arch/x86/include/asm/highmem.h b/arch/x86/include/asm/highmem.h
index 3bd0402..302a323 100644
--- a/arch/x86/include/asm/highmem.h
+++ b/arch/x86/include/asm/highmem.h
@@ -61,7 +61,7 @@ void *kmap(struct page *page);
 void kunmap(struct page *page);
 
 void *kmap_atomic_prot(struct page *page, pgprot_t prot);
-void *__kmap_atomic(struct page *page);
+void *kmap_atomic(struct page *page);
 void __kunmap_atomic(void *kvaddr);
 void *kmap_atomic_pfn(unsigned long pfn);
 void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index b499626..9f85499 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -50,11 +50,11 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot)
 }
 EXPORT_SYMBOL(kmap_atomic_prot);
 
-void *__kmap_atomic(struct page *page)
+void *kmap_atomic(struct page *page)
 {
 	return kmap_atomic_prot(page, kmap_prot);
 }
-EXPORT_SYMBOL(__kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic);
 
 /*
  * This is the same as kmap_atomic() but can map memory that doesn't
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 42ac049..9c1b442 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -55,12 +55,12 @@ static inline void kunmap(struct page *page)
 {
 }
 
-static inline void *__kmap_atomic(struct page *page)
+static inline void *kmap_atomic(struct page *page)
 {
 	pagefault_disable();
 	return page_address(page);
 }
-#define kmap_atomic_prot(page, prot)	__kmap_atomic(page)
+#define kmap_atomic_prot(page, prot)	kmap_atomic(page)
 
 static inline void __kunmap_atomic(void *addr)
 {
@@ -121,15 +121,10 @@ static inline void kmap_atomic_idx_pop(void)
 #define NARG_(_2, _1, n, ...) n
 #define NARG(...) NARG_(__VA_ARGS__, 2, 1, :)
 
-static inline void *kmap_atomic(struct page *page)
-{
-	return __kmap_atomic(page);
-}
-
 static inline void __deprecated *kmap_atomic_deprecated(struct page *page,
 							enum km_type km)
 {
-	return __kmap_atomic(page);
+	return kmap_atomic(page);
 }
 
 #define kmap_atomic1(...) kmap_atomic(__VA_ARGS__)
-- 
1.7.4.4

From - Thu Nov 08 21:07:44 2018
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From: "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.kernel.pci,gmane.linux.ports.sparc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel.cross-arch,gmane.linux.uclinux.microblaze,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH-RFC 02/10] lib: add GENERIC_PCI_IOMAP
Date: Sun, 27 Nov 2011 19:12:04 +0200
Lines: 183
Approved: news@gmane.org
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        linux-mips@linux-mips.org, linux-m68k@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux@openrisc.net,
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        "H. Peter Anvin" <hpa@zytor.com>, sparclinux@vger.kernel.org,
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        Ingo Molnar <mingo@redhat.com>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        lin
To: Stephen Rothwell <sfr@canb.auug.org.au>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/33107>

On Fri, Nov 25, 2011 at 11:54:55AM +1100, Stephen Rothwell wrote:
> Hi Michael,
> 
> On Thu, 24 Nov 2011 22:17:02 +0200 "Michael S. Tsirkin" <mst@redhat.com> wrote:
> >
> > diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
> > index 9120887..c8a67345 100644
> > --- a/include/asm-generic/io.h
> > +++ b/include/asm-generic/io.h
> > @@ -19,6 +19,8 @@
> >  #include <asm-generic/iomap.h>
> >  #endif
> >  
> > +#include <asm-generic/pci_iomap.h>
> > +
> >  #ifndef mmiowb
> >  #define mmiowb() do {} while (0)
> >  #endif
> > @@ -283,9 +285,6 @@ static inline void writesb(const void __iomem *addr, const void *buf, int len)
> >  #define __io_virt(x) ((void __force *) (x))
> >  
> >  #ifndef CONFIG_GENERIC_IOMAP
> > -/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
> > -struct pci_dev;
> > -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
> >  static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
> >  {
> >  }
> 
> Just wondering why you move pci_iomap but not pic_iounmap.

unmap is implemented significantly different between architectures.


>  And also if
> pci_iounmap is meant to stay here, then the "struct pci_dev" should
> probably stay as well.

Right. I'll fix that.

> > diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
> > index 98dcd76..fdcddcb 100644
> > --- a/include/asm-generic/iomap.h
> > +++ b/include/asm-generic/iomap.h
> > @@ -69,16 +69,13 @@ extern void ioport_unmap(void __iomem *);
> >  #ifdef CONFIG_PCI
> >  /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
> >  struct pci_dev;
> > -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
> >  extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
> 
> Ditto with pci_iounmap.

Answered above :)

>  Also the comment above really belongs with pci_iomap.

Right, I'll correct the comment.

> > diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h
> > new file mode 100644
> > index 0000000..e08b3bd
> > --- /dev/null
> > +++ b/include/asm-generic/pci_iomap.h
> > @@ -0,0 +1,26 @@
> > +/* Generic I/O port emulation, based on MN10300 code
> > + *
> > + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
> > + * Written by David Howells (dhowells@redhat.com)
> > + *
> > + * This program is free software; you can redistribute it and/or
> > + * modify it under the terms of the GNU General Public Licence
> > + * as published by the Free Software Foundation; either version
> > + * 2 of the Licence, or (at your option) any later version.
> > + */
> > +#ifndef __ASM_GENERIC_PCI_IOMAP_H
> > +#define __ASM_GENERIC_PCI_IOMAP_H
> > +
> > +#ifdef CONFIG_PCI
> > +/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
> > +struct pci_dev;
> 
> You could move this struct declaration above the ifdef and remove the
> duplicate below.

Good point. Will do.

> > +extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
> > +#else
> > +struct pci_dev;
> > +static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
> > +{
> > +	return NULL;
> > +}
> > +#endif
> > +
> > +#endif /* __ASM_GENERIC_IO_H */
> > diff --git a/lib/iomap.c b/lib/iomap.c
> > index 5dbcb4b..ada922a 100644
> > --- a/lib/iomap.c
> > +++ b/lib/iomap.c
> > @@ -242,45 +242,11 @@ EXPORT_SYMBOL(ioport_unmap);
> >  #endif /* CONFIG_HAS_IOPORT */
> >  
> >  #ifdef CONFIG_PCI
> > -/**
> > - * pci_iomap - create a virtual mapping cookie for a PCI BAR
> > - * @dev: PCI device that owns the BAR
> > - * @bar: BAR number
> > - * @maxlen: length of the memory to map
> > - *
> > - * Using this function you will get a __iomem address to your device BAR.
> > - * You can access it using ioread*() and iowrite*(). These functions hide
> > - * the details if this is a MMIO or PIO address space and will just do what
> > - * you expect from them in the correct way.
> > - *
> > - * @maxlen specifies the maximum length to map. If you want to get access to
> > - * the complete BAR without checking for its length first, pass %0 here.
> > - * */
> > -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
> > -{
> > -	resource_size_t start = pci_resource_start(dev, bar);
> > -	resource_size_t len = pci_resource_len(dev, bar);
> > -	unsigned long flags = pci_resource_flags(dev, bar);
> > -
> > -	if (!len || !start)
> > -		return NULL;
> > -	if (maxlen && len > maxlen)
> > -		len = maxlen;
> > -	if (flags & IORESOURCE_IO)
> > -		return ioport_map(start, len);
> > -	if (flags & IORESOURCE_MEM) {
> > -		if (flags & IORESOURCE_CACHEABLE)
> > -			return ioremap(start, len);
> > -		return ioremap_nocache(start, len);
> > -	}
> > -	/* What? */
> > -	return NULL;
> > -}
> > -
> > +/* Hide the details if this is a MMIO or PIO address space and just do what
> > + * you expect in the correct way. */
> >  void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
> >  {
> >  	IO_COND(addr, /* nothing */, iounmap(addr));
> >  }
> > -EXPORT_SYMBOL(pci_iomap);
> >  EXPORT_SYMBOL(pci_iounmap);
> 
> Ditto with pci_iounmap

Answered above.

> > diff --git a/lib/pci_iomap.c b/lib/pci_iomap.c
> > new file mode 100644
> > index 0000000..40b26cb
> > --- /dev/null
> > +++ b/lib/pci_iomap.c
> > @@ -0,0 +1,48 @@
> > +/*
> > + * Implement the default iomap interfaces
> > + *
> > + * (C) Copyright 2004 Linus Torvalds
> > + */
> > +#include <linux/pci.h>
> > +#include <linux/io.h>
> > +
> > +#include <linux/module.h>
> 
> If this is relative to (at least) v3.2-rc1, then you should use export.h
> instead of module.h

I just copied lib/iomap.c
Will fix, thanks for the comments.

> -- 
> Cheers,
> Stephen Rothwell                    sfr@canb.auug.org.au
> http://www.canb.auug.org.au/~sfr/





From - Thu Nov 08 21:07:44 2018
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.uclinux.microblaze,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.pci
Subject: Re: [PATCH-RFC 01/10] lib: move GENERIC_IOMAP to lib/Kconfig
Date: Mon, 28 Nov 2011 14:12:26 -0600
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Cc: Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Russell King <linux@arm.linux.org.uk>,
        Mikael Starvik <starvik@axis.com>,
        Jesper Nilsson <jesper.nilsson@axis.com>,
        Tony Luck <tony.luck@intel.com>,
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        Geert Uytterhoeven <geert@linux-m68k.org>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
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To: "Michael S. Tsirkin" <mst@redhat.com>
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On Thu, Nov 24, 2011 at 10:15:42PM +0200, Michael S. Tsirkin wrote:
> define GENERIC_IOMAP in a central location
> instead of all architectures. This will be helpful
> for the follow-up patch which makes it select
> other configs. Code is also a bit shorter this way.

For the Hexagon config,

Acked-by: Richard Kuo <rkuo@codeaurora.org>


-- 

Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.



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To: John David Anglin <dave.anglin@bell.net>
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On Sat, 2011-11-26 at 20:54 -0500, John David Anglin wrote:
> On 26-Nov-11, at 7:35 PM, John David Anglin wrote:
> 
> > On 25-Nov-11, at 10:18 PM, James Bottomley wrote:
> >
> >> I'm still a bit Jetlagged from a customer trip to Germany, but this
> >> looks entirely possible: Appendix F says that a later TLB insertion
> >> purges an earlier one, so I'd say in a combined I/D TLB inserting
> >> consecutive I and D entries purges the I.
> >>
> >> It looks like a fix might be to insert TLB entries supporting both  
> >> data
> >> and instruction access in the combined TLB case.
> >
> > In looking at the code, I couldn't see why the I and D entries would  
> > differ.
> > Except for the dtlb_check_alias_20w check, the I and D handlers appear
> > identical.  Maybe the hardware can't handle this case.
> >
> > Don't understand this comment:
> >
> >        /*
> >         * I miss is a little different, since we allow users to fault
> >         * on the gateway page which is in the kernel address space.
> >         */
> >
> > There is also a typo in this comment:
> >
> >         * Then incredible subtlety: The access rights are
> >         * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
> >
> > I believe the last bit should be _PAGE_WRITE.

Yes ... I was obviously in brain burn out when I wrote that.  It had
just taken me days to figure out what was going on if I remember
correctly.

> I just realized there is a difference.  In the I case, va and spc are  
> loaded
> from %pcoq and %pcsq, respectively.  In the D case, they are loaded from
> %ior and %isr.  I haven't wrapped my head around this but space_adjust
> may not be handling the b field correctly (D case)

I don't really think so: T D and B are all loaded from the page table
entry (so they overwrite anything in the space adjust).

Looking at the code again, it does seem that the insertions are all
correct for the combined TLB case on either an I or D fault, so whatever
the problem is, it must lie elsewhere.

James


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From: "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH-RFC 07/10] parisc: switch to GENERIC_PCI_IOMAP
Date: Sun, 4 Dec 2011 12:48:18 +0200
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To: Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
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On Thu, Nov 24, 2011 at 10:19:34PM +0200, Michael S. Tsirkin wrote:
> parisc copied pci_iomap from generic code, probably to avoid
> pulling the rest of iomap.c in.  Since that's in
> a separate file now, we can reuse the common implementation.
> 
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

Sorry to nag, any ACKs/NACKs on the parisc part?
I intend to send this to Linus if there are no
objections. Thanks!

> ---
>  arch/parisc/Kconfig     |    1 +
>  arch/parisc/lib/iomap.c |   23 -----------------------
>  2 files changed, 1 insertions(+), 23 deletions(-)
> 
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index fdfd8be..242a1b7 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -14,6 +14,7 @@ config PARISC
>  	select GENERIC_ATOMIC64 if !64BIT
>  	select HAVE_GENERIC_HARDIRQS
>  	select GENERIC_IRQ_PROBE
> +	select GENERIC_PCI_IOMAP
>  	select IRQ_PER_CPU
>  	select ARCH_HAVE_NMI_SAFE_CMPXCHG
>  
> diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
> index 8f470c9..fb8e10a 100644
> --- a/arch/parisc/lib/iomap.c
> +++ b/arch/parisc/lib/iomap.c
> @@ -436,28 +436,6 @@ void ioport_unmap(void __iomem *addr)
>  	}
>  }
>  
> -/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
> -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
> -{
> -	resource_size_t start = pci_resource_start(dev, bar);
> -	resource_size_t len = pci_resource_len(dev, bar);
> -	unsigned long flags = pci_resource_flags(dev, bar);
> -
> -	if (!len || !start)
> -		return NULL;
> -	if (maxlen && len > maxlen)
> -		len = maxlen;
> -	if (flags & IORESOURCE_IO)
> -		return ioport_map(start, len);
> -	if (flags & IORESOURCE_MEM) {
> -		if (flags & IORESOURCE_CACHEABLE)
> -			return ioremap(start, len);
> -		return ioremap_nocache(start, len);
> -	}
> -	/* What? */
> -	return NULL;
> -}
> -
>  void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
>  {
>  	if (!INDIRECT_ADDR(addr)) {
> @@ -483,5 +461,4 @@ EXPORT_SYMBOL(iowrite16_rep);
>  EXPORT_SYMBOL(iowrite32_rep);
>  EXPORT_SYMBOL(ioport_map);
>  EXPORT_SYMBOL(ioport_unmap);
> -EXPORT_SYMBOL(pci_iomap);
>  EXPORT_SYMBOL(pci_iounmap);
> -- 
> 1.7.5.53.gc233e
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Subject: Re: [PATCH-RFC 07/10] parisc: switch to GENERIC_PCI_IOMAP
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On Sun, 2011-12-04 at 12:48 +0200, Michael S. Tsirkin wrote:
> On Thu, Nov 24, 2011 at 10:19:34PM +0200, Michael S. Tsirkin wrote:
> > parisc copied pci_iomap from generic code, probably to avoid
> > pulling the rest of iomap.c in.  Since that's in
> > a separate file now, we can reuse the common implementation.
> > 
> > Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> 
> Sorry to nag, any ACKs/NACKs on the parisc part?
> I intend to send this to Linus if there are no
> objections. Thanks!

Next time, send the patch to linux-arch or linux-parisc ... it helps to
get people to review it.  Although this one looks completely trivial,
unless I'm missing something?

Obviously there was a bit of a brain fart when this was done: the parisc
piece shouldn't be a copy of the generic code: we don't have native i/o
ports and emulation is pretty expensive, so we should prefer
IORESOURCE_MEM over IORESOURCE_IO when both are available  ... but even
on x86, memory mapping is faster (although not by the order of magnitude
it is on parisc), so it looks like you could fix this in the generic
code.

James


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Subject: Re: [PATCH-RFC 07/10] parisc: switch to GENERIC_PCI_IOMAP
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On Sun, Dec 04, 2011 at 08:22:34AM -0600, James Bottomley wrote:
> On Sun, 2011-12-04 at 12:48 +0200, Michael S. Tsirkin wrote:
> > On Thu, Nov 24, 2011 at 10:19:34PM +0200, Michael S. Tsirkin wrote:
> > > parisc copied pci_iomap from generic code, probably to avoid
> > > pulling the rest of iomap.c in.  Since that's in
> > > a separate file now, we can reuse the common implementation.
> > > 
> > > Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> > 
> > Sorry to nag, any ACKs/NACKs on the parisc part?
> > I intend to send this to Linus if there are no
> > objections. Thanks!
> 
> Next time, send the patch to linux-arch or linux-parisc ... it helps to
> get people to review it. Although this one looks completely trivial,
> unless I'm missing something?

I think it's trivial but I don't have the setup to even compile it so
depend on someone to ack.

> Obviously there was a bit of a brain fart when this was done: the parisc
> piece shouldn't be a copy of the generic code: we don't have native i/o
> ports and emulation is pretty expensive, so we should prefer
> IORESOURCE_MEM over IORESOURCE_IO when both are available  ... but even
> on x86, memory mapping is faster (although not by the order of magnitude
> it is on parisc), so it looks like you could fix this in the generic
> code.
> 
> James

AFAIK, on PCI a resource is either IO or MEM, but never both.
What am I missing?

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On Sun, 2011-12-04 at 16:30 +0200, Michael S. Tsirkin wrote:
> On Sun, Dec 04, 2011 at 08:22:34AM -0600, James Bottomley wrote:
> > On Sun, 2011-12-04 at 12:48 +0200, Michael S. Tsirkin wrote:
> > > On Thu, Nov 24, 2011 at 10:19:34PM +0200, Michael S. Tsirkin wrote:
> > > > parisc copied pci_iomap from generic code, probably to avoid
> > > > pulling the rest of iomap.c in.  Since that's in
> > > > a separate file now, we can reuse the common implementation.
> > > > 
> > > > Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> > > 
> > > Sorry to nag, any ACKs/NACKs on the parisc part?
> > > I intend to send this to Linus if there are no
> > > objections. Thanks!
> > 
> > Next time, send the patch to linux-arch or linux-parisc ... it helps to
> > get people to review it. Although this one looks completely trivial,
> > unless I'm missing something?
> 
> I think it's trivial but I don't have the setup to even compile it so
> depend on someone to ack.
> 
> > Obviously there was a bit of a brain fart when this was done: the parisc
> > piece shouldn't be a copy of the generic code: we don't have native i/o
> > ports and emulation is pretty expensive, so we should prefer
> > IORESOURCE_MEM over IORESOURCE_IO when both are available  ... but even
> > on x86, memory mapping is faster (although not by the order of magnitude
> > it is on parisc), so it looks like you could fix this in the generic
> > code.
> > 
> > James
> 
> AFAIK, on PCI a resource is either IO or MEM, but never both.
> What am I missing?

Could be ... I know we've had issues in the past with standard drivers
like the sym53c8xx which map via both and operate far less efficiently
over I/O ... but that could have been different bars I suppose (it's so
long ago that I can't remember).

James


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Subject: Re: [PATCH-RFC 07/10] parisc: switch to GENERIC_PCI_IOMAP
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On Sun, Dec 04, 2011 at 08:32:24AM -0600, James Bottomley wrote:
> On Sun, 2011-12-04 at 16:30 +0200, Michael S. Tsirkin wrote:
> > On Sun, Dec 04, 2011 at 08:22:34AM -0600, James Bottomley wrote:
> > > On Sun, 2011-12-04 at 12:48 +0200, Michael S. Tsirkin wrote:
> > > > On Thu, Nov 24, 2011 at 10:19:34PM +0200, Michael S. Tsirkin wrote:
> > > > > parisc copied pci_iomap from generic code, probably to avoid
> > > > > pulling the rest of iomap.c in.  Since that's in
> > > > > a separate file now, we can reuse the common implementation.
> > > > > 
> > > > > Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> > > > 
> > > > Sorry to nag, any ACKs/NACKs on the parisc part?
> > > > I intend to send this to Linus if there are no
> > > > objections. Thanks!
> > > 
> > > Next time, send the patch to linux-arch or linux-parisc ... it helps to
> > > get people to review it. Although this one looks completely trivial,
> > > unless I'm missing something?
> > 
> > I think it's trivial but I don't have the setup to even compile it so
> > depend on someone to ack.
> > 
> > > Obviously there was a bit of a brain fart when this was done: the parisc
> > > piece shouldn't be a copy of the generic code: we don't have native i/o
> > > ports and emulation is pretty expensive, so we should prefer
> > > IORESOURCE_MEM over IORESOURCE_IO when both are available  ... but even
> > > on x86, memory mapping is faster (although not by the order of magnitude
> > > it is on parisc), so it looks like you could fix this in the generic
> > > code.
> > > 
> > > James
> > 
> > AFAIK, on PCI a resource is either IO or MEM, but never both.
> > What am I missing?
> 
> Could be ... I know we've had issues in the past with standard drivers
> like the sym53c8xx which map via both and operate far less efficiently
> over I/O ... but that could have been different bars I suppose (it's so
> long ago that I can't remember).

Probably, it looks like it has both mmio and io:

drivers/scsi/sym53c8xx_2/sym_glue.c

#ifdef CONFIG_SCSI_SYM53C8XX_MMIO
        if (device->mmio_base)
                device->s.ioaddr = pci_iomap(pdev, 1,
                                                pci_resource_len(pdev, 1));
#endif
        if (!device->s.ioaddr)
                device->s.ioaddr = pci_iomap(pdev, 0,
                                                pci_resource_len(pdev, 0));


so ... ACK?

> 
> James
> 

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From: Sven Eckelmann <sven@narfation.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.org.freifunk.batman,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.ports.hexagon
Subject: [PATCHv5] atomic: add *_dec_not_zero
Date: Sun,  4 Dec 2011 16:42:49 +0100
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Cc: linux-arch@vger.kernel.org, b.a.t.m.a.n@lists.open-mesh.org,
        Sven Eckelmann <sven@narfation.org>,
        Randy Dunlap <rdunlap@xenotime.net>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Russell King <linux@arm.linux.org.uk>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Hirokazu Takata <takata@linux-m32r.org>,
        Ralf Baechle <ralf@linux-mips.org>,
        Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        linux390@de.ibm.com, "David S. Miller"
To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/33122>

Introduce an *_dec_not_zero operation.  Make this a special case of
*_add_unless because batman-adv uses atomic_dec_not_zero in different
places like re-broadcast queue or aggregation queue management. There
are other non-final patches which may also want to use this macro.

Suggested-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux390@de.ibm.com
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-m32r@ml.linux-m32r.org
Cc: linux-m32r-ja@ml.linux-m32r.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: linux-hexagon@vger.kernel.org
---
David S. Miller recommended this change in
 https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/2011-May/004560.html

Arnd Bergmann wanted to apply it in 201106172320.26476.arnd@arndb.de

... and then Arun Sharma created a big merge conflict with
https://lkml.org/lkml/2011/6/6/430

I don't think that it is a a good idea to assume that everyone still
agrees with the patch after I've rewritten it. I try Andrew Morton this
time because he applied the last changes to include/linux/atomic.h.
There are already two projects (batman-adv/fault_inject) which include
their private definition (not conflicting) and I have patches for 9
other modules that could use it.


 Documentation/atomic_ops.txt       |    1 +
 arch/alpha/include/asm/atomic.h    |    1 +
 arch/alpha/include/asm/local.h     |    1 +
 arch/arm/include/asm/atomic.h      |    1 +
 arch/hexagon/include/asm/atomic.h  |    1 +
 arch/ia64/include/asm/atomic.h     |    1 +
 arch/m32r/include/asm/local.h      |    1 +
 arch/mips/include/asm/atomic.h     |    1 +
 arch/mips/include/asm/local.h      |    1 +
 arch/parisc/include/asm/atomic.h   |    1 +
 arch/powerpc/include/asm/atomic.h  |    1 +
 arch/powerpc/include/asm/local.h   |    1 +
 arch/s390/include/asm/atomic.h     |    1 +
 arch/sparc/include/asm/atomic_64.h |    1 +
 arch/tile/include/asm/atomic_32.h  |    1 +
 arch/tile/include/asm/atomic_64.h  |    1 +
 arch/x86/include/asm/atomic64_32.h |   12 ++++++++++++
 arch/x86/include/asm/atomic64_64.h |    1 +
 arch/x86/include/asm/local.h       |    1 +
 arch/x86/lib/atomic64_32.c         |    4 ++++
 arch/x86/lib/atomic64_386_32.S     |   21 +++++++++++++++++++++
 arch/x86/lib/atomic64_cx8_32.S     |   28 ++++++++++++++++++++++++++++
 include/asm-generic/atomic-long.h  |    2 ++
 include/asm-generic/atomic64.h     |    1 +
 include/asm-generic/local.h        |    1 +
 include/asm-generic/local64.h      |    2 ++
 include/linux/atomic.h             |    9 +++++++++
 lib/atomic64_test.c                |   19 +++++++++++++++++++
 28 files changed, 117 insertions(+), 0 deletions(-)

diff --git a/Documentation/atomic_ops.txt b/Documentation/atomic_ops.txt
index 3bd585b..1eec221 100644
--- a/Documentation/atomic_ops.txt
+++ b/Documentation/atomic_ops.txt
@@ -190,6 +190,7 @@ atomic_add_unless requires explicit memory barriers around the operation
 unless it fails (returns 0).
 
 atomic_inc_not_zero, equivalent to atomic_add_unless(v, 1, 0)
+atomic_dec_not_zero, equivalent to atomic_add_unless(v, -1, 0)
 
 
 If a caller requires memory barrier semantics around an atomic_t
diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
index 640f909..09d1571 100644
--- a/arch/alpha/include/asm/atomic.h
+++ b/arch/alpha/include/asm/atomic.h
@@ -225,6 +225,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
 #define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0)
diff --git a/arch/alpha/include/asm/local.h b/arch/alpha/include/asm/local.h
index 9c94b84..51eb678 100644
--- a/arch/alpha/include/asm/local.h
+++ b/arch/alpha/include/asm/local.h
@@ -79,6 +79,7 @@ static __inline__ long local_sub_return(long i, local_t * l)
 	c != (u);						\
 })
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 #define local_add_negative(a, l) (local_add_return((a), (l)) < 0)
 
diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index 86976d0..80ed975 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -458,6 +458,7 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
 #define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1LL, 0LL)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
 
 #endif /* !CONFIG_GENERIC_ATOMIC64 */
 #endif
diff --git a/arch/hexagon/include/asm/atomic.h b/arch/hexagon/include/asm/atomic.h
index e220f90..3a1a33a 100644
--- a/arch/hexagon/include/asm/atomic.h
+++ b/arch/hexagon/include/asm/atomic.h
@@ -148,6 +148,7 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
 
 #define atomic_inc(v) atomic_add(1, (v))
 #define atomic_dec(v) atomic_sub(1, (v))
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
index 3fad89e..af6e9b2 100644
--- a/arch/ia64/include/asm/atomic.h
+++ b/arch/ia64/include/asm/atomic.h
@@ -122,6 +122,7 @@ static __inline__ long atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #define atomic_add_return(i,v)						\
 ({									\
diff --git a/arch/m32r/include/asm/local.h b/arch/m32r/include/asm/local.h
index 734bca8..d536082 100644
--- a/arch/m32r/include/asm/local.h
+++ b/arch/m32r/include/asm/local.h
@@ -272,6 +272,7 @@ static inline int local_add_unless(local_t *l, long a, long u)
 }
 
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 static inline void local_clear_mask(unsigned long  mask, local_t *addr)
 {
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
index 1d93f81..babb043 100644
--- a/arch/mips/include/asm/atomic.h
+++ b/arch/mips/include/asm/atomic.h
@@ -697,6 +697,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #define atomic64_dec_return(v) atomic64_sub_return(1, (v))
 #define atomic64_inc_return(v) atomic64_add_return(1, (v))
diff --git a/arch/mips/include/asm/local.h b/arch/mips/include/asm/local.h
index 94fde8d..0242256 100644
--- a/arch/mips/include/asm/local.h
+++ b/arch/mips/include/asm/local.h
@@ -137,6 +137,7 @@ static __inline__ long local_sub_return(long i, local_t * l)
 	c != (u);						\
 })
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 #define local_dec_return(l) local_sub_return(1, (l))
 #define local_inc_return(l) local_add_return(1, (l))
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 4054b31..57b7069 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -334,6 +334,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #endif /* !CONFIG_64BIT */
 
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index 02e41b5..0798420 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h
@@ -468,6 +468,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 #endif /* __powerpc64__ */
 
diff --git a/arch/powerpc/include/asm/local.h b/arch/powerpc/include/asm/local.h
index b8da913..d182e34 100644
--- a/arch/powerpc/include/asm/local.h
+++ b/arch/powerpc/include/asm/local.h
@@ -134,6 +134,7 @@ static __inline__ int local_add_unless(local_t *l, long a, long u)
 }
 
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 #define local_sub_and_test(a, l)	(local_sub_return((a), (l)) == 0)
 #define local_dec_and_test(l)		(local_dec_return((l)) == 0)
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 8517d2a..92e7d5d 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -325,6 +325,7 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
 #define atomic64_dec_return(_v)		atomic64_sub_return(1, _v)
 #define atomic64_dec_and_test(_v)	(atomic64_sub_return(1, _v) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1, 0)
 
 #define smp_mb__before_atomic_dec()	smp_mb()
 #define smp_mb__after_atomic_dec()	smp_mb()
diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
index 9f421df..94cf160 100644
--- a/arch/sparc/include/asm/atomic_64.h
+++ b/arch/sparc/include/asm/atomic_64.h
@@ -106,6 +106,7 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 /* Atomic operations are already serializing */
 #define smp_mb__before_atomic_dec()	barrier()
diff --git a/arch/tile/include/asm/atomic_32.h b/arch/tile/include/asm/atomic_32.h
index c03349e..9cfafb3 100644
--- a/arch/tile/include/asm/atomic_32.h
+++ b/arch/tile/include/asm/atomic_32.h
@@ -233,6 +233,7 @@ static inline void atomic64_set(atomic64_t *v, u64 n)
 #define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1LL, 0LL)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
 
 /*
  * We need to barrier before modifying the word, since the _atomic_xxx()
diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h
index 27fe667..9c22f50 100644
--- a/arch/tile/include/asm/atomic_64.h
+++ b/arch/tile/include/asm/atomic_64.h
@@ -141,6 +141,7 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
 #define atomic64_add_negative(i, v)	(atomic64_add_return((i), (v)) < 0)
 
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1, 0)
 
 /* Atomic dec and inc don't implement barrier, so provide them if needed. */
 #define smp_mb__before_atomic_dec()	smp_mb()
diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
index 24098aa..3cd4431 100644
--- a/arch/x86/include/asm/atomic64_32.h
+++ b/arch/x86/include/asm/atomic64_32.h
@@ -287,6 +287,18 @@ static inline int atomic64_inc_not_zero(atomic64_t *v)
 	return r;
 }
 
+
+static inline int atomic64_dec_not_zero(atomic64_t *v)
+{
+	int r;
+	asm volatile(ATOMIC64_ALTERNATIVE(dec_not_zero)
+		     : "=a" (r)
+		     : "S" (v)
+		     : "ecx", "edx", "memory"
+		     );
+	return r;
+}
+
 static inline long long atomic64_dec_if_positive(atomic64_t *v)
 {
 	long long r;
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 0e1cbfc..539e41b 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -216,6 +216,7 @@ static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
 }
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
 
 /*
  * atomic64_dec_if_positive - decrement by 1 if old value positive
diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h
index 9cdae5d..2c8c92d 100644
--- a/arch/x86/include/asm/local.h
+++ b/arch/x86/include/asm/local.h
@@ -185,6 +185,7 @@ static inline long local_sub_return(long i, local_t *l)
 	c != (u);						\
 })
 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)
 
 /* On x86_32, these are no better than the atomic variants.
  * On x86-64 these are better than the atomic variants on SMP kernels
diff --git a/arch/x86/lib/atomic64_32.c b/arch/x86/lib/atomic64_32.c
index 042f682..7da05c3 100644
--- a/arch/x86/lib/atomic64_32.c
+++ b/arch/x86/lib/atomic64_32.c
@@ -24,6 +24,8 @@ long long atomic64_dec_if_positive_cx8(atomic64_t *v);
 EXPORT_SYMBOL(atomic64_dec_if_positive_cx8);
 int atomic64_inc_not_zero_cx8(atomic64_t *v);
 EXPORT_SYMBOL(atomic64_inc_not_zero_cx8);
+int atomic64_dec_not_zero_cx8(atomic64_t *v);
+EXPORT_SYMBOL(atomic64_dec_not_zero_cx8);
 int atomic64_add_unless_cx8(atomic64_t *v, long long a, long long u);
 EXPORT_SYMBOL(atomic64_add_unless_cx8);
 
@@ -54,6 +56,8 @@ long long atomic64_dec_if_positive_386(atomic64_t *v);
 EXPORT_SYMBOL(atomic64_dec_if_positive_386);
 int atomic64_inc_not_zero_386(atomic64_t *v);
 EXPORT_SYMBOL(atomic64_inc_not_zero_386);
+int atomic64_dec_not_zero_386(atomic64_t *v);
+EXPORT_SYMBOL(atomic64_dec_not_zero_386);
 int atomic64_add_unless_386(atomic64_t *v, long long a, long long u);
 EXPORT_SYMBOL(atomic64_add_unless_386);
 #endif
diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S
index e8e7e0d..c78337b 100644
--- a/arch/x86/lib/atomic64_386_32.S
+++ b/arch/x86/lib/atomic64_386_32.S
@@ -181,6 +181,27 @@ ENDP
 #undef v
 
 #define v %esi
+BEGIN(dec_not_zero)
+	movl  (v), %eax
+	movl 4(v), %edx
+	testl %eax, %eax
+	je 3f
+1:
+	subl $1, %eax
+	sbbl $0, %edx
+	movl %eax,  (v)
+	movl %edx, 4(v)
+	movl $1, %eax
+2:
+	RET
+3:
+	testl %edx, %edx
+	jne 1b
+	jmp 2b
+ENDP
+#undef v
+
+#define v %esi
 BEGIN(dec_if_positive)
 	movl  (v), %eax
 	movl 4(v), %edx
diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
index 391a083..989638c 100644
--- a/arch/x86/lib/atomic64_cx8_32.S
+++ b/arch/x86/lib/atomic64_cx8_32.S
@@ -220,3 +220,31 @@ ENTRY(atomic64_inc_not_zero_cx8)
 	jmp 3b
 	CFI_ENDPROC
 ENDPROC(atomic64_inc_not_zero_cx8)
+
+ENTRY(atomic64_dec_not_zero_cx8)
+	CFI_STARTPROC
+	SAVE ebx
+
+	read64 %esi
+1:
+	testl %eax, %eax
+	je 4f
+2:
+	movl %eax, %ebx
+	movl %edx, %ecx
+	subl $1, %ebx
+	sbbl $0, %ecx
+	LOCK_PREFIX
+	cmpxchg8b (%esi)
+	jne 1b
+
+	movl $1, %eax
+3:
+	RESTORE ebx
+	ret
+4:
+	testl %edx, %edx
+	jne 2b
+	jmp 3b
+	CFI_ENDPROC
+ENDPROC(atomic64_dec_not_zero_cx8)
diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h
index b7babf0..0fe75ab 100644
--- a/include/asm-generic/atomic-long.h
+++ b/include/asm-generic/atomic-long.h
@@ -130,6 +130,7 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
 }
 
 #define atomic_long_inc_not_zero(l) atomic64_inc_not_zero((atomic64_t *)(l))
+#define atomic_long_dec_not_zero(l) atomic64_dec_not_zero((atomic64_t *)(l))
 
 #define atomic_long_cmpxchg(l, old, new) \
 	(atomic64_cmpxchg((atomic64_t *)(l), (old), (new)))
@@ -247,6 +248,7 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
 }
 
 #define atomic_long_inc_not_zero(l) atomic_inc_not_zero((atomic_t *)(l))
+#define atomic_long_dec_not_zero(l) atomic_dec_not_zero((atomic_t *)(l))
 
 #define atomic_long_cmpxchg(l, old, new) \
 	(atomic_cmpxchg((atomic_t *)(l), (old), (new)))
diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
index b18ce4f..90ff9b1 100644
--- a/include/asm-generic/atomic64.h
+++ b/include/asm-generic/atomic64.h
@@ -38,5 +38,6 @@ extern int	 atomic64_add_unless(atomic64_t *v, long long a, long long u);
 #define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v) 	atomic64_add_unless((v), 1LL, 0LL)
+#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
 
 #endif  /*  _ASM_GENERIC_ATOMIC64_H  */
diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
index 9ceb03b..fabf4f3 100644
--- a/include/asm-generic/local.h
+++ b/include/asm-generic/local.h
@@ -44,6 +44,7 @@ typedef struct
 #define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n))
 #define local_add_unless(l, _a, u) atomic_long_add_unless((&(l)->a), (_a), (u))
 #define local_inc_not_zero(l) atomic_long_inc_not_zero(&(l)->a)
+#define local_dec_not_zero(l) atomic_long_dec_not_zero(&(l)->a)
 
 /* Non-atomic variants, ie. preemption disabled and won't be touched
  * in interrupt, etc.  Some archs can optimize this case well. */
diff --git a/include/asm-generic/local64.h b/include/asm-generic/local64.h
index 5980002..76acbe2 100644
--- a/include/asm-generic/local64.h
+++ b/include/asm-generic/local64.h
@@ -45,6 +45,7 @@ typedef struct {
 #define local64_xchg(l, n)	local_xchg((&(l)->a), (n))
 #define local64_add_unless(l, _a, u) local_add_unless((&(l)->a), (_a), (u))
 #define local64_inc_not_zero(l)	local_inc_not_zero(&(l)->a)
+#define local64_dec_not_zero(l)	local_dec_not_zero(&(l)->a)
 
 /* Non-atomic variants, ie. preemption disabled and won't be touched
  * in interrupt, etc.  Some archs can optimize this case well. */
@@ -83,6 +84,7 @@ typedef struct {
 #define local64_xchg(l, n)	atomic64_xchg((&(l)->a), (n))
 #define local64_add_unless(l, _a, u) atomic64_add_unless((&(l)->a), (_a), (u))
 #define local64_inc_not_zero(l)	atomic64_inc_not_zero(&(l)->a)
+#define local64_dec_not_zero(l)	atomic64_dec_not_zero(&(l)->a)
 
 /* Non-atomic variants, ie. preemption disabled and won't be touched
  * in interrupt, etc.  Some archs can optimize this case well. */
diff --git a/include/linux/atomic.h b/include/linux/atomic.h
index 42b77b5..ad2b750 100644
--- a/include/linux/atomic.h
+++ b/include/linux/atomic.h
@@ -27,6 +27,15 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
 #define atomic_inc_not_zero(v)		atomic_add_unless((v), 1, 0)
 
 /**
+ * atomic_dec_not_zero - decrement unless the number is zero
+ * @v: pointer of type atomic_t
+ *
+ * Atomically decrements @v by 1, so long as @v is non-zero.
+ * Returns non-zero if @v was non-zero, and zero otherwise.
+ */
+#define atomic_dec_not_zero(v)		atomic_add_unless((v), -1, 0)
+
+/**
  * atomic_inc_not_zero_hint - increment if not null
  * @v: pointer of type atomic_t
  * @hint: probable value of the atomic before the increment
diff --git a/lib/atomic64_test.c b/lib/atomic64_test.c
index 0c33cde..b7468b7 100644
--- a/lib/atomic64_test.c
+++ b/lib/atomic64_test.c
@@ -145,6 +145,25 @@ static __init int test_atomic64(void)
 	r += one;
 	BUG_ON(v.counter != r);
 
+	INIT(onestwos);
+	BUG_ON(!atomic64_dec_not_zero(&v));
+	r -= one;
+	BUG_ON(v.counter != r);
+
+	INIT(0);
+	BUG_ON(atomic64_dec_not_zero(&v));
+	BUG_ON(v.counter != r);
+
+	INIT(one);
+	BUG_ON(!atomic64_dec_not_zero(&v));
+	r -= one;
+	BUG_ON(v.counter != r);
+
+	INIT(-one);
+	BUG_ON(!atomic64_dec_not_zero(&v));
+	r -= one;
+	BUG_ON(v.counter != r);
+
 #ifdef CONFIG_X86
 	printk(KERN_INFO "atomic64 test passed for %s platform %s CX8 and %s SSE\n",
 #ifdef CONFIG_X86_64
-- 
1.7.7.3




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Subject: Re: [PATCHv5] atomic: add *_dec_not_zero
Date: Sun, 4 Dec 2011 21:33:16 +0000
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Approved: news@gmane.org
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On Sun, Dec 04, 2011 at 04:42:49PM +0100, Sven Eckelmann wrote:
> diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
> +#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
> diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
> +#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
> diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
> +#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
> diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
> +#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
> diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
> +#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
> diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
> +#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
> diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
> +#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1, 0)
> diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
> +#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
> diff --git a/arch/tile/include/asm/atomic_32.h b/arch/tile/include/asm/atomic_32.h
> +#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
> diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h
> +#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1, 0)
> diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
> +#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)
> diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
> +#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)

I think this is rather silly - all these definitions are very similar to
each other.  Is there really no way to put this into include/linux/atomic.h,
maybe as something like:

#ifndef atomic64_dec_not_zero
#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1, 0)
#endif

and avoid having to add essentially the same definition to 12 individual
files?

Architectures which want to override it can do by the following:

#define atomic64_dec_not_zero		atomic64_dec_not_zero

which won't have any effect on C nor asm code.


From - Thu Nov 08 21:07:45 2018
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Subject: Re: Re: [PATCHv5] atomic: add *_dec_not_zero
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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        Randy Dunlap <rdunlap@xenotime.net>,
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        Hirokazu Takata <takata@linux-m32r.org>,
        Ralf Baechle <ralf@linux-mips.org>,
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        Paul Mackerras <paulus@samba.org>,
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        Heiko Carstens <heiko.carstens@de.ibm.com>,
        linux390@de.ibm.com, "David S. Miller" <davem@davemloft.net>,
        Chris Metc
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On Sunday 04 December 2011 21:33:16 Russell King - ARM Linux wrote:
[...]
> > +#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
> 
> I think this is rather silly - all these definitions are very similar to
> each other.  Is there really no way to put this into include/linux/atomic.h,
> maybe as something like:
> 
> #ifndef atomic64_dec_not_zero
> #define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1, 0)
> #endif
> 
> and avoid having to add essentially the same definition to 12 individual
> files?
> 
> Architectures which want to override it can do by the following:
> 
> #define atomic64_dec_not_zero		atomic64_dec_not_zero
> 
> which won't have any effect on C nor asm code.

 * https://lkml.org/lkml/2011/5/8/15
 * https://lkml.org/lkml/2011/5/8/16
 * https://lkml.org/lkml/2011/5/8/321

Kind regards,
	Sven
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From: Russell King - ARM Linux <linux@arm.linux.org.uk>
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Subject: Re: Re: [PATCHv5] atomic: add *_dec_not_zero
Date: Sun, 4 Dec 2011 22:18:50 +0000
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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        Randy Dunlap <rdunlap@xenotime.net>,
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To: Sven Eckelmann <sven@narfation.org>
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On Sun, Dec 04, 2011 at 10:49:10PM +0100, Sven Eckelmann wrote:
> On Sunday 04 December 2011 21:33:16 Russell King - ARM Linux wrote:
> [...]
> > > +#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL, 0LL)
> > 
> > I think this is rather silly - all these definitions are very similar to
> > each other.  Is there really no way to put this into include/linux/atomic.h,
> > maybe as something like:
> > 
> > #ifndef atomic64_dec_not_zero
> > #define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1, 0)
> > #endif
> > 
> > and avoid having to add essentially the same definition to 12 individual
> > files?
> > 
> > Architectures which want to override it can do by the following:
> > 
> > #define atomic64_dec_not_zero		atomic64_dec_not_zero
> > 
> > which won't have any effect on C nor asm code.
> 
>  * https://lkml.org/lkml/2011/5/8/15
>  * https://lkml.org/lkml/2011/5/8/16
>  * https://lkml.org/lkml/2011/5/8/321

I don't see any reason in that set of messages _not_ to do what I suggest.
Even on SMP architectures, your:

#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1, 0)

makes total sense - and with the adjustments I've suggested it means
that architectures (like x86) can still override it if have a more
optimal way to perform this operation.

Not only that, but we already do this kind of thing in
include/linux/atomic.h for the non-64 bit ops, for example:

#ifndef atomic_inc_unless_negative
static inline int atomic_inc_unless_negative(atomic_t *p)
{
        int v, v1;
        for (v = 0; v >= 0; v = v1) {
                v1 = atomic_cmpxchg(p, v, v + 1);
                if (likely(v1 == v))
                        return 1;
        }
        return 0;
}
#endif

And really, I believe it would be a good cleanup if all the standard
definitions for atomic64 ops (like atomic64_add_negative) were also
defined in include/linux/atomic.h rather than individually in every
atomic*.h header throughout the kernel source, except where an arch
wants to explicitly override it.  Yet again, virtually all architectures
define these in exactly the same way.

We have more than enough code in arch/ for any architecture to worry
about, we don't need schemes to add more when there's simple and
practical solutions to avoiding doing so if the right design were
chosen (preferably from the outset.)

So, I'm not going to offer my ack for a change which I don't believe
is the correct approach.



From - Thu Nov 08 21:07:45 2018
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From: Sven Eckelmann <sven@narfation.org>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.org.freifunk.batman,gmane.linux.kernel,gmane.linux.ports.alpha
Subject: Re: Re: Re: [PATCHv5] atomic: add *_dec_not_zero
Date: Sun, 04 Dec 2011 23:42:47 +0100
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Cc: linux-m32r-ja@ml.linux-m32r.org, linux-mips@linux-mips.org,
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 "H. Peter Anvin" <hpa@zytor.com>, Heiko Carstens <heiko.carstens@de.ibm.com>,
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On Sunday 04 December 2011 22:18:50 Russell King - ARM Linux wrote:
> On Sun, Dec 04, 2011 at 10:49:10PM +0100, Sven Eckelmann wrote:
> > On Sunday 04 December 2011 21:33:16 Russell King - ARM Linux wrote:
> > [...]
> > 
> > > > +#define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1LL,
> > > > 0LL)
> > > 
> > > I think this is rather silly - all these definitions are very
> > > similar to each other.  Is there really no way to put this into
> > > include/linux/atomic.h, maybe as something like:
> > > 
> > > #ifndef atomic64_dec_not_zero
> > > #define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1, 0)
> > > #endif
> > > 
> > > and avoid having to add essentially the same definition to 12
> > > individual files?
> > > 
> > > Architectures which want to override it can do by the following:
> > > 
> > > #define atomic64_dec_not_zero		atomic64_dec_not_zero
> > > 
> > > which won't have any effect on C nor asm code.
> >  
> >  * https://lkml.org/lkml/2011/5/8/15
> >  * https://lkml.org/lkml/2011/5/8/16
> >  * https://lkml.org/lkml/2011/5/8/321
> 
> I don't see any reason in that set of messages _not_ to do what I suggest.
> Even on SMP architectures, your:
> 
> #define atomic64_dec_not_zero(v)	atomic64_add_unless((v), -1, 0)
> 
> makes total sense - and with the adjustments I've suggested it means
> that architectures (like x86) can still override it if have a more
> optimal way to perform this operation.
> 
> Not only that, but we already do this kind of thing in
> include/linux/atomic.h for the non-64 bit ops, for example:
> 
> #ifndef atomic_inc_unless_negative
> static inline int atomic_inc_unless_negative(atomic_t *p)
> {
>         int v, v1;
>         for (v = 0; v >= 0; v = v1) {
>                 v1 = atomic_cmpxchg(p, v, v + 1);
>                 if (likely(v1 == v))
>                         return 1;
>         }
>         return 0;
> }
> #endif
> 
> And really, I believe it would be a good cleanup if all the standard
> definitions for atomic64 ops (like atomic64_add_negative) were also
> defined in include/linux/atomic.h rather than individually in every
> atomic*.h header throughout the kernel source, except where an arch
> wants to explicitly override it.  Yet again, virtually all architectures
> define these in exactly the same way.
> 
> We have more than enough code in arch/ for any architecture to worry
> about, we don't need schemes to add more when there's simple and
> practical solutions to avoiding doing so if the right design were
> chosen (preferably from the outset.)
> 
> So, I'm not going to offer my ack for a change which I don't believe
> is the correct approach.

Ok, I wanted to say that I just did what is currently done and did not offer a 
redesign. There is just a difference between adding something and replacing 
everything with something else. But I am fine with not getting the ack because 
now somebody at least made a statement.

Kind regards,
	Sven
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_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
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From - Thu Nov 08 21:07:45 2018
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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.org.freifunk.batman,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: Re: [PATCHv5] atomic: add *_dec_not_zero
Date: Mon, 05 Dec 2011 09:41:55 +1100
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Cc: Sven Eckelmann <sven@narfation.org>,
        linux-m32r-ja@ml.linux-m32r.org, linux-mips@linux-mips.org,
        linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org,
        "H. Peter Anvin" <hpa@zytor.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        Randy Dunlap <rdunlap@xenotime.net>,
        Paul Mackerras <paulus@samba.org>,
        Helge Deller <deller@gmx.de>, sparclinux@vger.kernel.org,
        linux-hexagon@vger.kernel.org, linux-arch@vger.kernel.org,
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        user-mode-linux-devel@lists.sourceforge.net,
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        Hirokazu Takata <takata@linux-m32r.org>, x86@kernel.org,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Ingo Molnar <mingo@redhat.com>,
        Matt Turner <mattst88@gmail.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Arnd Bergma nn <arnd@arnd
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On Sun, 2011-12-04 at 22:18 +0000, Russell King - ARM Linux wrote:

 .../...

> And really, I believe it would be a good cleanup if all the standard
> definitions for atomic64 ops (like atomic64_add_negative) were also
> defined in include/linux/atomic.h rather than individually in every
> atomic*.h header throughout the kernel source, except where an arch
> wants to explicitly override it.  Yet again, virtually all architectures
> define these in exactly the same way.
> 
> We have more than enough code in arch/ for any architecture to worry
> about, we don't need schemes to add more when there's simple and
> practical solutions to avoiding doing so if the right design were
> chosen (preferably from the outset.)
> 
> So, I'm not going to offer my ack for a change which I don't believe
> is the correct approach.

I agree with Russell, his approach is a lot easier to maintain long run,
we should even consider converting existing definitions.

Cheers,
Ben.





From - Thu Nov 08 21:07:45 2018
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X-Mozilla-Keys:                                                                                 
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From: "H. Peter Anvin" <hpa@zytor.com>
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Subject: Re: [PATCHv5] atomic: add *_dec_not_zero
Date: Sun, 04 Dec 2011 16:14:13 -0800
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Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>,
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To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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On 12/04/2011 02:41 PM, Benjamin Herrenschmidt wrote:
> 
> I agree with Russell, his approach is a lot easier to maintain long run,
> we should even consider converting existing definitions.
> 

Thirded.

	-hpa


-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.




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From: Sven Eckelmann <sven@narfation.org>
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Subject: Re: Re: Re: [PATCHv5] atomic: add *_dec_not_zero
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Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>, linux-m32r-ja@ml.linux-m32r.org, linux-mips@linux-mips.org, linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org, "H. Peter Anvin" <hpa@zytor.com>, Heiko Carstens <heiko.carstens@de.ibm.com>, Randy Dunlap <rdunlap@xenotime.net>, Paul Mackerras <paulus@samba.org>, Helge Deller <deller@gmx.de>, sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, user-mode-linux-devel@lists.sourceforge.net, Richard Weinberger <richard@nod.at>, Hirokazu Takata <takata@linux-m32r.org>, x86@kernel.org, "James E.J. Bottomley" <jejb@parisc-linux.org>, Ingo Molnar <mingo@redhat.com>, Matt Turner <mattst88@gmail.com>, Fenghua Yu <fenghua.yu@intel.com>, Arnd Bergma nn <arnd@arndb.de>, Jeff Dike <
 jdike@addtoit.com>, Chris Metcalf <cmetcalf@tilera.com>, linux-m32r@ml.linux-m32r.org, Ivan Kokshaysky
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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On Monday 05 December 2011 09:41:55 Benjamin Herrenschmidt wrote:
> On Sun, 2011-12-04 at 22:18 +0000, Russell King - ARM Linux wrote:
> 
>  .../...
> 
> > And really, I believe it would be a good cleanup if all the standard
> > definitions for atomic64 ops (like atomic64_add_negative) were also
> > defined in include/linux/atomic.h rather than individually in every
> > atomic*.h header throughout the kernel source, except where an arch
> > wants to explicitly override it.  Yet again, virtually all architectures
> > define these in exactly the same way.
> > 
> > We have more than enough code in arch/ for any architecture to worry
> > about, we don't need schemes to add more when there's simple and
> > practical solutions to avoiding doing so if the right design were
> > chosen (preferably from the outset.)
> > 
> > So, I'm not going to offer my ack for a change which I don't believe
> > is the correct approach.
> 
> I agree with Russell, his approach is a lot easier to maintain long run,
> we should even consider converting existing definitions.

I would rather go with "the existing definitions have to converted" and this 
means "not by this patch". At the moment, the atomic64 stuff exist only as 
separate generic or arch specific implementation. It is fine that Russell King 
noticed that people like Arun Sharma did a lot of work to made it true for 
atomic_t, but atomic64_t is a little bit different right now (at least as I 
understand it).

Kind regards,
	Sven
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From - Thu Nov 08 21:07:45 2018
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Subject: Re: Re: Re: [PATCHv5] atomic: add *_dec_not_zero
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Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>,
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To: Sven Eckelmann <sven@narfation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/33130>

On Mon, 2011-12-05 at 08:57 +0100, Sven Eckelmann wrote:
> On Monday 05 December 2011 09:41:55 Benjamin Herrenschmidt wrote:
> > On Sun, 2011-12-04 at 22:18 +0000, Russell King - ARM Linux wrote:
> > 
> >  .../...
> > 
> > > And really, I believe it would be a good cleanup if all the standard
> > > definitions for atomic64 ops (like atomic64_add_negative) were also
> > > defined in include/linux/atomic.h rather than individually in every
> > > atomic*.h header throughout the kernel source, except where an arch
> > > wants to explicitly override it.  Yet again, virtually all architectures
> > > define these in exactly the same way.
> > > 
> > > We have more than enough code in arch/ for any architecture to worry
> > > about, we don't need schemes to add more when there's simple and
> > > practical solutions to avoiding doing so if the right design were
> > > chosen (preferably from the outset.)
> > > 
> > > So, I'm not going to offer my ack for a change which I don't believe
> > > is the correct approach.
> > 
> > I agree with Russell, his approach is a lot easier to maintain long run,
> > we should even consider converting existing definitions.
> 
> I would rather go with "the existing definitions have to converted" and this 
> means "not by this patch".

Right. I didn't suggest -you- had to do it as a pre-req to your patch.

>  At the moment, the atomic64 stuff exist only as 
> separate generic or arch specific implementation. It is fine that Russell King 
> noticed that people like Arun Sharma did a lot of work to made it true for 
> atomic_t, but atomic64_t is a little bit different right now (at least as I 
> understand it).

Cheers,
Ben.





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Subject: RE: Re: [PATCHv5] atomic: add *_dec_not_zero
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Looking at this:

> #ifndef atomic_inc_unless_negative
> static inline int atomic_inc_unless_negative(atomic_t *p)
> {
>         int v, v1;
>         for (v = 0; v >= 0; v = v1) {
>                 v1 = atomic_cmpxchg(p, v, v + 1);
>                 if (likely(v1 == v))
>                         return 1;
>         }
>         return 0;
> }
> #endif

why is it optimised for '*p' being zero??
I'd have though the initial assignment to 'v' should
be made by reading '*p' without any memory barriers (etc).

	David

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH-RFC 07/10] parisc: switch to GENERIC_PCI_IOMAP
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Cc: Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
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On Sun, 2011-12-04 at 16:42 +0200, Michael S. Tsirkin wrote:
> On Sun, Dec 04, 2011 at 08:32:24AM -0600, James Bottomley wrote:
> > On Sun, 2011-12-04 at 16:30 +0200, Michael S. Tsirkin wrote:
> > > On Sun, Dec 04, 2011 at 08:22:34AM -0600, James Bottomley wrote:
> > > > On Sun, 2011-12-04 at 12:48 +0200, Michael S. Tsirkin wrote:
> > > > > On Thu, Nov 24, 2011 at 10:19:34PM +0200, Michael S. Tsirkin wrote:
> > > > > > parisc copied pci_iomap from generic code, probably to avoid
> > > > > > pulling the rest of iomap.c in.  Since that's in
> > > > > > a separate file now, we can reuse the common implementation.
> > > > > > 
> > > > > > Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> > > > > 
> > > > > Sorry to nag, any ACKs/NACKs on the parisc part?
> > > > > I intend to send this to Linus if there are no
> > > > > objections. Thanks!
> > > > 
> > > > Next time, send the patch to linux-arch or linux-parisc ... it helps to
> > > > get people to review it. Although this one looks completely trivial,
> > > > unless I'm missing something?
> > > 
> > > I think it's trivial but I don't have the setup to even compile it so
> > > depend on someone to ack.
> > > 
> > > > Obviously there was a bit of a brain fart when this was done: the parisc
> > > > piece shouldn't be a copy of the generic code: we don't have native i/o
> > > > ports and emulation is pretty expensive, so we should prefer
> > > > IORESOURCE_MEM over IORESOURCE_IO when both are available  ... but even
> > > > on x86, memory mapping is faster (although not by the order of magnitude
> > > > it is on parisc), so it looks like you could fix this in the generic
> > > > code.
> > > > 
> > > > James
> > > 
> > > AFAIK, on PCI a resource is either IO or MEM, but never both.
> > > What am I missing?
> > 
> > Could be ... I know we've had issues in the past with standard drivers
> > like the sym53c8xx which map via both and operate far less efficiently
> > over I/O ... but that could have been different bars I suppose (it's so
> > long ago that I can't remember).
> 
> Probably, it looks like it has both mmio and io:
> 
> drivers/scsi/sym53c8xx_2/sym_glue.c
> 
> #ifdef CONFIG_SCSI_SYM53C8XX_MMIO
>         if (device->mmio_base)
>                 device->s.ioaddr = pci_iomap(pdev, 1,
>                                                 pci_resource_len(pdev, 1));
> #endif
>         if (!device->s.ioaddr)
>                 device->s.ioaddr = pci_iomap(pdev, 0,
>                                                 pci_resource_len(pdev, 0));
> 
> 
> so ... ACK?

Um, well, it looks like a trivial code shift, so it doesn't really need
one (it can just go through the trivial tree).  Unless there's some
reason actually to test it out on parisc because something will break
(in which case, I'll need the actual patch, not just a quoted one).

James


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From - Thu Nov 08 21:07:45 2018
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Subject: Re: [PATCH-RFC 07/10] parisc: switch to GENERIC_PCI_IOMAP
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On Mon, Dec 05, 2011 at 09:33:29AM -0600, James Bottomley wrote:
> On Sun, 2011-12-04 at 16:42 +0200, Michael S. Tsirkin wrote:
> > On Sun, Dec 04, 2011 at 08:32:24AM -0600, James Bottomley wrote:
> > > On Sun, 2011-12-04 at 16:30 +0200, Michael S. Tsirkin wrote:
> > > > On Sun, Dec 04, 2011 at 08:22:34AM -0600, James Bottomley wrote:
> > > > > On Sun, 2011-12-04 at 12:48 +0200, Michael S. Tsirkin wrote:
> > > > > > On Thu, Nov 24, 2011 at 10:19:34PM +0200, Michael S. Tsirkin wrote:
> > > > > > > parisc copied pci_iomap from generic code, probably to avoid
> > > > > > > pulling the rest of iomap.c in.  Since that's in
> > > > > > > a separate file now, we can reuse the common implementation.
> > > > > > > 
> > > > > > > Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> > > > > > 
> > > > > > Sorry to nag, any ACKs/NACKs on the parisc part?
> > > > > > I intend to send this to Linus if there are no
> > > > > > objections. Thanks!
> > > > > 
> > > > > Next time, send the patch to linux-arch or linux-parisc ... it helps to
> > > > > get people to review it. Although this one looks completely trivial,
> > > > > unless I'm missing something?
> > > > 
> > > > I think it's trivial but I don't have the setup to even compile it so
> > > > depend on someone to ack.
> > > > 
> > > > > Obviously there was a bit of a brain fart when this was done: the parisc
> > > > > piece shouldn't be a copy of the generic code: we don't have native i/o
> > > > > ports and emulation is pretty expensive, so we should prefer
> > > > > IORESOURCE_MEM over IORESOURCE_IO when both are available  ... but even
> > > > > on x86, memory mapping is faster (although not by the order of magnitude
> > > > > it is on parisc), so it looks like you could fix this in the generic
> > > > > code.
> > > > > 
> > > > > James
> > > > 
> > > > AFAIK, on PCI a resource is either IO or MEM, but never both.
> > > > What am I missing?
> > > 
> > > Could be ... I know we've had issues in the past with standard drivers
> > > like the sym53c8xx which map via both and operate far less efficiently
> > > over I/O ... but that could have been different bars I suppose (it's so
> > > long ago that I can't remember).
> > 
> > Probably, it looks like it has both mmio and io:
> > 
> > drivers/scsi/sym53c8xx_2/sym_glue.c
> > 
> > #ifdef CONFIG_SCSI_SYM53C8XX_MMIO
> >         if (device->mmio_base)
> >                 device->s.ioaddr = pci_iomap(pdev, 1,
> >                                                 pci_resource_len(pdev, 1));
> > #endif
> >         if (!device->s.ioaddr)
> >                 device->s.ioaddr = pci_iomap(pdev, 0,
> >                                                 pci_resource_len(pdev, 0));
> > 
> > 
> > so ... ACK?
> 
> Um, well, it looks like a trivial code shift, so it doesn't really need
> one (it can just go through the trivial tree).

It's part of a larger set not all of which is trivial.

>  Unless there's some
> reason actually to test it out on parisc because something will break
> (in which case, I'll need the actual patch, not just a quoted one).
> 
> James

A build test would be nice. Just forwarded you a patch.
It's also on linux-next.

-- 
MST
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On Mon, 2011-12-05 at 18:24 +0200, Michael S. Tsirkin wrote:
> > > so ... ACK?
> > 
> > Um, well, it looks like a trivial code shift, so it doesn't really need
> > one (it can just go through the trivial tree).
> 
> It's part of a larger set not all of which is trivial.

OK, so it looks fine to me.

> >  Unless there's some
> > reason actually to test it out on parisc because something will break
> > (in which case, I'll need the actual patch, not just a quoted one).
> > 
> > James
> 
> A build test would be nice. Just forwarded you a patch.
> It's also on linux-next.

Actually, sending it to me doesn't help.  Being busy and lazy, I want to
see if someone else will test it ... that's why we send patches to the
list.

James



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From - Thu Nov 08 21:07:46 2018
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Subject: Re: [PATCH-RFC 07/10] parisc: switch to GENERIC_PCI_IOMAP
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On Sun, Dec 4, 2011 at 6:30 AM, Michael S. Tsirkin <mst@redhat.com> wrote:
...
> AFAIK, on PCI a resource is either IO or MEM, but never both.
> What am I missing?

Yes, a particular PCI BAR (Base Address Register) is either IO or MEM
(not both) address space resource.

James is observing many older devices have the same set of registers
mapped in both address spaces using two BARs. As you already know,
MMIO is "lighter weight" (CPU cost to generate transactions on PCI
bus). I think this is orthogonal to the issue you are addressing.

Regarding handling of IO Port space cookies:
> -     if (flags & IORESOURCE_IO)
> -             return ioport_map(start, len);

I don't know who all the consumers of pci_iomap() are. If user space
can somehow call this, it should fail for IO port space "mappings"
since unlike x86, parisc has no INB/OUTB instructions. Generating IO
Port space requires frobbing PCI Bus controller registers that I don't
think we want to expose to user space.

I'm going to assume this is NOT a problem since any code that
generates anything that tries to look like an INB/OUTB just won't
compile on parisc.  I think removing the parisc specific definition
and using the generic one instead looks fine to me.  But I'm not
confident enough to offer a formal ACKed-by line. Sorry. :(

cheers,
grant
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From - Thu Nov 08 21:07:46 2018
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From: "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH-RFC 07/10] parisc: switch to GENERIC_PCI_IOMAP
Date: Tue, 6 Dec 2011 13:06:09 +0200
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
	Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	linux-parisc@vger.kernel.org
To: Grant Grundler <grantgrundler@gmail.com>
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On Mon, Dec 05, 2011 at 10:23:17AM -0800, Grant Grundler wrote:
> On Sun, Dec 4, 2011 at 6:30 AM, Michael S. Tsirkin <mst@redhat.com> wrote:
> ...
> > AFAIK, on PCI a resource is either IO or MEM, but never both.
> > What am I missing?
> 
> Yes, a particular PCI BAR (Base Address Register) is either IO or MEM
> (not both) address space resource.
> 
> James is observing many older devices have the same set of registers
> mapped in both address spaces using two BARs. As you already know,
> MMIO is "lighter weight" (CPU cost to generate transactions on PCI
> bus). I think this is orthogonal to the issue you are addressing.
> 
> Regarding handling of IO Port space cookies:
> > -     if (flags & IORESOURCE_IO)
> > -             return ioport_map(start, len);
> 
> I don't know who all the consumers of pci_iomap() are. If user space
> can somehow call this, it should fail for IO port space "mappings"
> since unlike x86, parisc has no INB/OUTB instructions. Generating IO
> Port space requires frobbing PCI Bus controller registers that I don't
> think we want to expose to user space.
> 
> I'm going to assume this is NOT a problem since any code that
> generates anything that tries to look like an INB/OUTB just won't
> compile on parisc.  I think removing the parisc specific definition
> and using the generic one instead looks fine to me.  But I'm not
> confident enough to offer a formal ACKed-by line. Sorry. :(
> 
> cheers,
> grant

How about a Tested-by line? I presume you have the hardware to
try this out? You can also get the patches from my tree:
git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
or from linux-next.

-- 
MST
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From - Thu Nov 08 21:07:46 2018
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: make NO_IRQ 0 as it should be
Date: Tue, 06 Dec 2011 11:24:33 +0000
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From: Alan Cox <alan@linux.intel.com>

PA-RISC doesn't use a real IRQ 0 and James says

"To be honest, we don't care very much.  Parisc interrupts are cascading
and mostly software assigned (except our EIEM which we keep internal).
We use a base offset at 16 or 64 (depending on GSC presence or not) so
IRQs 0-15 aren't legal on parisc either (we frob some of the hard coded
ISA interrupts on the WAX eisa bus).

We use NO_IRQ as an IRQ assignment error return and that's about it (and
that error shouldn't ever really occur)."

Signed-off-by: Alan Cox <alan@linux.intel.com>
---

 arch/parisc/include/asm/irq.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)


diff --git a/arch/parisc/include/asm/irq.h b/arch/parisc/include/asm/irq.h
index 1073599..fcf6edd 100644
--- a/arch/parisc/include/asm/irq.h
+++ b/arch/parisc/include/asm/irq.h
@@ -10,7 +10,7 @@
 #include <linux/cpumask.h>
 #include <asm/types.h>
 
-#define NO_IRQ		(-1)
+#define NO_IRQ		0
 
 #ifdef CONFIG_GSC
 #define GSC_IRQ_BASE	16

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From: Grant Grundler <grantgrundler@gmail.com>
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Subject: Re: [PATCH-RFC 07/10] parisc: switch to GENERIC_PCI_IOMAP
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On Tue, Dec 6, 2011 at 3:06 AM, Michael S. Tsirkin <mst@redhat.com> wro=
te:
> On Mon, Dec 05, 2011 at 10:23:17AM -0800, Grant Grundler wrote:
=2E..
>> I'm going to assume this is NOT a problem since any code that
>> generates anything that tries to look like an INB/OUTB just won't
>> compile on parisc. =C2=A0I think removing the parisc specific defini=
tion
>> and using the generic one instead looks fine to me. =C2=A0But I'm no=
t
>> confident enough to offer a formal ACKed-by line. Sorry. :(
>>
>> cheers,
>> grant
>
> How about a Tested-by line? I presume you have the hardware to
> try this out?

I do have the HW at home to test this...but it's not been powered up
in 6+ months. I have to point dpkg at a new repository and update all
the SW on the machine. If you don't mind waiting another week, I'll
make time to do that later this week (or weekend).



> You can also get the patches from my tree:
> git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-nex=
t
> or from linux-next.

That's easy enough - thanks!
grant

>
> --
> MST
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On Tue, Dec 06, 2011 at 08:18:43AM -0800, Grant Grundler wrote:
> On Tue, Dec 6, 2011 at 3:06 AM, Michael S. Tsirkin <mst@redhat.com> w=
rote:
> > On Mon, Dec 05, 2011 at 10:23:17AM -0800, Grant Grundler wrote:
> ...
> >> I'm going to assume this is NOT a problem since any code that
> >> generates anything that tries to look like an INB/OUTB just won't
> >> compile on parisc. =A0I think removing the parisc specific definit=
ion
> >> and using the generic one instead looks fine to me. =A0But I'm not
> >> confident enough to offer a formal ACKed-by line. Sorry. :(
> >>
> >> cheers,
> >> grant
> >
> > How about a Tested-by line? I presume you have the hardware to
> > try this out?
>=20
> I do have the HW at home to test this...but it's not been powered up
> in 6+ months. I have to point dpkg at a new repository and update all
> the SW on the machine. If you don't mind waiting another week, I'll
> make time to do that later this week (or weekend).
>
> > You can also get the patches from my tree:
> > git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-n=
ext
> > or from linux-next.
>=20
> That's easy enough - thanks!
> grant

Waiting for 3.4 window to open anyway, so yes that will be nice.
Thanks!

--=20
MST
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On Tue, 2011-12-06 at 11:24 +0000, Alan Cox wrote:
> From: Alan Cox <alan@linux.intel.com>
> 
> PA-RISC doesn't use a real IRQ 0 and James says
> 
> "To be honest, we don't care very much.  Parisc interrupts are cascading
> and mostly software assigned (except our EIEM which we keep internal).
> We use a base offset at 16 or 64 (depending on GSC presence or not) so
> IRQs 0-15 aren't legal on parisc either (we frob some of the hard coded
> ISA interrupts on the WAX eisa bus).
> 
> We use NO_IRQ as an IRQ assignment error return and that's about it (and
> that error shouldn't ever really occur)."
> 
> Signed-off-by: Alan Cox <alan@linux.intel.com>
> ---
> 
>  arch/parisc/include/asm/irq.h |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> 
> diff --git a/arch/parisc/include/asm/irq.h b/arch/parisc/include/asm/irq.h
> index 1073599..fcf6edd 100644
> --- a/arch/parisc/include/asm/irq.h
> +++ b/arch/parisc/include/asm/irq.h
> @@ -10,7 +10,7 @@
>  #include <linux/cpumask.h>
>  #include <asm/types.h>
>  
> -#define NO_IRQ		(-1)
> +#define NO_IRQ		0

Unfortunately, it's not quite as simple as this.  There's one use of
NO_IRQ as an error return in the EIEM code, which returns the internal
line number (which run 0-32/64 ... I'll have to fix those before this
can be done.

James


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From: Ralf Baechle <ralf@linux-mips.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc
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Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
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To: Cong Wang <amwang@redhat.com>
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On Sun, Nov 27, 2011 at 01:27:41PM +0800, Cong Wang wrote:

Acked-by: Ralf Baechle <ralf@linux-mips.org>

  Ralf



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http://sourceware.org/ml/binutils/2011-12/msg00131.html

Dave
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From: Grant Grundler <grantgrundler@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH-RFC 07/10] parisc: switch to GENERIC_PCI_IOMAP
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On Tue, Dec 6, 2011 at 8:24 AM, Michael S. Tsirkin <mst@redhat.com> wrote:
...
>> I do have the HW at home to test this...but it's not been powered up
>> in 6+ months. I have to point dpkg at a new repository and update all
>> the SW on the machine. If you don't mind waiting another week, I'll
>> make time to do that later this week (or weekend).
>>
>> > You can also get the patches from my tree:
>> > git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
>> > or from linux-next.
>>
>> That's easy enough - thanks!
>> grant
>
> Waiting for 3.4 window to open anyway, so yes that will be nice.

Michael,
Just an update that I haven't forgotten your request. I tried to
update the machine on Monday and the current state of hppa for
debian-ports is dselect can't resolve dependencies on versions of
packages because those versions don't exist for hppa. I've just asked
for help with this on debian-hppa mailing list and will see if we can
get this machine updated.

cheers,
grant
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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci
Subject: [PATCH 6/6] parisc/PCI: use list_for_each_entry() for bus->devices
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Replace open-coded list traversal with list_for_each_entry().

Note that parisc lba_fixup_bus() previously enabled FBB/PERR/SERR
repeatedly on the same device instead of doing it on all devices on
the bus.

CC: linux-parisc@vger.kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/parisc/dino.c    |    6 ++----
 drivers/parisc/lba_pci.c |    7 +++----
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 7ff10c1..6f5bf3e 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -478,14 +478,12 @@ dino_card_setup(struct pci_bus *bus, void __iomem *base_addr)
 	if (ccio_allocate_resource(dino_dev->hba.dev, res, _8MB,
 				F_EXTEND(0xf0000000UL) | _8MB,
 				F_EXTEND(0xffffffffUL) &~ _8MB, _8MB) < 0) {
-		struct list_head *ln, *tmp_ln;
+		struct pci_dev *dev, *tmp;
 
 		printk(KERN_ERR "Dino: cannot attach bus %s\n",
 		       dev_name(bus->bridge));
 		/* kill the bus, we can't do anything with it */
-		list_for_each_safe(ln, tmp_ln, &bus->devices) {
-			struct pci_dev *dev = pci_dev_b(ln);
-
+		list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
 			list_del(&dev->bus_list);
 		}
 			
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index d5f3d75..f0b00f8 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -630,7 +630,7 @@ truncate_pat_collision(struct resource *root, struct resource *new)
 static void
 lba_fixup_bus(struct pci_bus *bus)
 {
-	struct list_head *ln;
+	struct pci_dev *dev;
 #ifdef FBB_SUPPORT
 	u16 status;
 #endif
@@ -712,9 +712,8 @@ lba_fixup_bus(struct pci_bus *bus)
 
 	}
 
-	list_for_each(ln, &bus->devices) {
+	list_for_each_entry(dev, &bus->devices, bus_list) {
 		int i;
-		struct pci_dev *dev = pci_dev_b(ln);
 
 		DBG("lba_fixup_bus() %s\n", pci_name(dev));
 
@@ -793,7 +792,7 @@ lba_fixup_bus(struct pci_bus *bus)
 	}
 
 	/* Lastly enable FBB/PERR/SERR on all devices too */
-	list_for_each(ln, &bus->devices) {
+	list_for_each_entry(dev, &bus->devices, bus_list) {
 		(void) pci_read_config_word(dev, PCI_COMMAND, &status);
 		status |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR | fbb_enable;
 		(void) pci_write_config_word(dev, PCI_COMMAND, status);

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From - Thu Nov 08 21:07:48 2018
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On 12/18/2011 5:45 PM, John David Anglin wrote:
> Yes.  R4 is also wrong, so it might be a call has corrupted it and 
> then the restore
> corrupts r19.
>
> This rings a bell.  In the old clone/fork bug, there was a cache issue 
> with the stack
> region created for the thread.  It seemed like it got modified after 
> the thread started.
> It must have something to do with the fact that it is allocated by 
> malloc.
I believe COW is broken.  If you look at set_pte_at, you will see that 
the tlb is not
purged for the address after the need value is stored in the page table, 
so the write
protect doesn't take effect immediately.  Thus, a thread can continue 
writing to a
protected page without generating a fault.  Unfortunately, this doesn't 
fix the problem
by itself (tested this morning).

I'm thinking that copy_user_page needs to be done through the tmp alias 
region,
or the user page needs to be flushed before it is copied.  I'm not sure 
how to do the
latter.

Dave

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Hi all,

After a lot of trial and error, I believe that I have resolved the  
random segmentation faults
on SMP PA8800 and PA8900 systems.  This includes the libgomp hpmc's  
which turned
out to be caused by a non-equivalent alias mapping in libattr (I  
hadn't rebuilt the attr
package because there is a build issue with the current version in  
unstable).  This was
hard to find!

I have started working on setting up magnum for buildd.

Happy New Year,
Dave
--
John David Anglin	dave.anglin@bell.net



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On Sat, Dec 31, 2011 at 4:02 PM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
> Hi all,
>
> After a lot of trial and error, I believe that I have resolved the ra=
ndom
> segmentation faults
> on SMP PA8800 and PA8900 systems. =C2=A0This includes the libgomp hpm=
c's which
> turned
> out to be caused by a non-equivalent alias mapping in libattr (I hadn=
't
> rebuilt the attr
> package because there is a build issue with the current version in
> unstable). =C2=A0This was
> hard to find!

Wow! Happy New Year!

Well Done!
That must have been incredibly hard to find. It's a bummer the only
way we can find those sorts of things is by unraveling crash dumps. :(

> I have started working on setting up magnum for buildd.

If I can download a bunch of .debs, I'd be happy to install and run
some tests on my j6k.

cheers,
grant
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On 2-Jan-12, at 1:23 AM, Grant Grundler wrote:

> Well Done!
> That must have been incredibly hard to find. It's a bummer the only
> way we can find those sorts of things is by unraveling crash dumps. :(
>

Sadly, the crash dumps were never very helpful.  The hpmc's arising
from cache corruption were usually significantly deferred.  Often, the
crashes would occur with the processors in the idle loop!  Probably,
HP had a JTAG box or something similar to analyze cache problems.

We have known for some time that non-equivalent aliases are not
supported on PA8800 and PA8900 processors.  I patched binutils
several months ago to fix this problem.  However, the entire runtime
needs to be recompiled to eliminate the problem.

The kernel routine that causes the hpmc's is flush_cache_range.
I wrote a modified version that can check the page mapping, but it
is very slow.  This is a very performance critical function.

Another source of instability was TLB purges.  We put lock/unlock
sequences around all the purges in the C code, but somehow we forgot
to do the same in the assembly code in pacache.S.

I believe that I fixed the COW/minifail bug yesterday.  I now have
copy_user_page doing copies via the temp-alias region.  We also
forgot to purge the TLB entries when we write protected the page
table for COW.  As a result, multithreaded applications could continue
to dirty a page after it was nominally write protected.

There is more to do on this.  I know that clear_user_page and
copy_user_page no longer need the dcache flushes in
kunmap_parisc.  What I'm really hoping is that we will now be
able to change the define for flush_cache_dup_mm to:

#define flush_cache_dup_mm(mm)		do { } while (0)

>> I have started working on setting up magnum for buildd.
>
> If I can download a bunch of .debs, I'd be happy to install and run
> some tests on my j6k.

The .debs can be found in my home directory on dogma.  binutils,
gcc-4.4 and gcc-4.6 can be updated without kernel issues.  I believe
that glibc needs 2.6.26 or later.  Watch out for udev.  Don't update
it until glibc is updated.  It's definitely tricky to do the updates  
by hand.

I'm going to work on the kernel patch some more today.  Hopefully,
it will then be ready for testing on other machines.

Dave
Happy New Year
--
John David Anglin	dave.anglin@bell.net



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On 2-Jan-12, at 10:12 AM, John David Anglin wrote:

> I'm going to work on the kernel patch some more today.  Hopefully,
> it will then be ready for testing on other machines.

None of this worked.  Attached patch as it stands.  Comments and  
testing appreciated.

Regards,
Dave
--
John David Anglin	dave.anglin@bell.net



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diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 2388bdb..7839285 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -8,6 +8,29 @@
 #include <asm/atomic.h>
 #include <asm/errno.h>
 
+/* The following has to match the LWS code in syscall.S.  We have
+   sixteen four-word locks. */
+
+static inline void
+_futex_spin_lock_irqsave (u32 __user *uaddr, unsigned long int *flags)
+{
+	extern u32 lws_lock_start[];
+	long index = ((long)uaddr & 0xf0) >> 2;
+	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
+	local_irq_save(*flags);
+	arch_spin_lock(s);
+}
+
+static inline void
+_futex_spin_unlock_irqrestore (u32 __user *uaddr, unsigned long int *flags)
+{
+	extern u32 lws_lock_start[];
+	long index = ((long)uaddr & 0xf0) >> 2;
+	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
+	arch_spin_unlock(s);
+	local_irq_restore(*flags);
+}
+
 static inline int
 futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 {
@@ -26,7 +49,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_disable();
 
-	_atomic_spin_lock_irqsave(uaddr, flags);
+	_futex_spin_lock_irqsave(uaddr, &flags);
 
 	switch (op) {
 	case FUTEX_OP_SET:
@@ -71,7 +94,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 		ret = -ENOSYS;
 	}
 
-	_atomic_spin_unlock_irqrestore(uaddr, flags);
+	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
 	pagefault_enable();
 
@@ -113,7 +136,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	 * address. This should scale to a couple of CPUs.
 	 */
 
-	_atomic_spin_lock_irqsave(uaddr, flags);
+	_futex_spin_lock_irqsave(uaddr, &flags);
 
 	ret = get_user(val, uaddr);
 
@@ -122,7 +145,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 
 	*uval = val;
 
-	_atomic_spin_unlock_irqrestore(uaddr, flags);
+	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
 	return ret;
 }
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index a84cc1f..ea63524 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -22,14 +22,14 @@
 #include <asm/cache.h>
 
 #define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define copy_page(to,from)      copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
+void copy_page_asm(void *to, void *from);
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 22dadeb..ab667f8 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -40,7 +40,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm,addr,ptep, pteval)                        \
+        do{                                                     \
+                set_pte(ptep,pteval);                           \
+                purge_tlb_entries(mm,addr);                     \
+        } while(0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -464,6 +471,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index dcd5510..5df1597 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -141,6 +141,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -230,6 +231,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 83335f3..a6e90cf 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -134,7 +134,7 @@ parisc_cache_init(void)
 	if (pdc_cache_info(&cache_info) < 0)
 		panic("parisc_cache_init: pdc_cache_info failed");
 
-#if 0
+#if 1
 	printk("ic_size %lx dc_size %lx it_size %lx\n",
 		cache_info.ic_size,
 		cache_info.dc_size,
@@ -315,9 +315,13 @@ void flush_dcache_page(struct page *page)
 
 		flush_tlb_page(mpnt, addr);
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
-			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
+			if (old_addr == 0)
+				__flush_cache_page(mpnt, addr, page_to_phys(page));
+			else if (parisc_requires_coherency()) {
+				/* Big trouble -- we have a bad mapping */
+				flush_cache_all();
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
+			}
 			old_addr = addr;
 		}
 	}
@@ -331,17 +335,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -375,18 +368,25 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
 
-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
+extern void purge_kernel_dcache_page_asm(unsigned long);
+extern void clear_user_page_asm(void *, unsigned long);
+extern void copy_user_page_asm(void *, void *, unsigned long);
 
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
+void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
 {
 	unsigned long flags;
 
-	purge_kernel_dcache_page((unsigned long)page);
+	/* The PA-RISC 2.0 Architecture book states on page F-6:
+	   "Before a write-capable translation is enabled, *all*
+	   non-equivalently-aliased translations must be removed
+	   from the page table and purged from the TLB.  (Note
+	   that the caches are not required to be flushed at this
+	   time.)"  */
+
 	purge_tlb_start(flags);
-	pdtlb_kernel(page);
+	pdtlb_kernel(vto);
 	purge_tlb_end(flags);
-	clear_user_page_asm(page, vaddr);
+	clear_user_page_asm(vto, vaddr);
 }
 EXPORT_SYMBOL(clear_user_page);
 
@@ -401,13 +401,33 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
+#define COPY_USER_PAGE_VIA_KMAP 1
+
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-		    struct page *pg)
+	struct page *pg)
 {
-	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
+#if COPY_USER_PAGE_VIA_KMAP
+	/* Copy using kernel mapping.  This has the advantage
+	   that no coherency is needed in copy_page_asm (all in
+	   kmap/kunmap).  However, the `from' page may be dirty
+	   in threaded applications and it needs to be flushed
+	   before it can be accessed through the kernel mapping. */
+	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
 		flush_kernel_dcache_page_asm(vto);
+#else
+	unsigned long flags;
+
+	/* Copy through temp-alias region.  This has the advantage
+	   that the `from' page doesn't need to be flushed.  However,
+	   the `to' page must be flushed in copy_user_page_asm since
+	   it can be used to bring in code.  */
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	pdtlb_kernel(vfrom);
+	purge_tlb_end(flags);
+	copy_user_page_asm(vto, vfrom, vaddr);
+#endif
 }
 EXPORT_SYMBOL(copy_user_page);
 
@@ -487,18 +507,90 @@ flush_user_icache_range(unsigned long start, unsigned long end)
 		flush_instruction_cache();
 }
 
+/* While useful for testing, this check has too much overhead for
+   general use.  Thus, it is better to fix inequivalent mappings
+   than whack the cache.  */
+#define DEBUG_PAGE_MAPPING 0
+
+static inline void check_page_mapping(struct page *page)
+{
+#if DEBUG_PAGE_MAPPING
+	struct address_space *mapping = page_mapping(page);
+	struct vm_area_struct *mpnt;
+	struct prio_tree_iter iter;
+	unsigned long offset;
+	unsigned long addr, old_addr = 0;
+	pgoff_t pgoff;
+
+	if (!mapping || !mapping_mapped(mapping))
+		return;
+
+	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+
+	/* Check that all mappings of a file are congruently mapped */
+
+	flush_dcache_mmap_lock(mapping);
+	vma_prio_tree_foreach(mpnt, &iter, &mapping->i_mmap, pgoff, pgoff) {
+		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
+		addr = mpnt->vm_start + offset;
+		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
+			if (old_addr) {
+				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
+			}
+			old_addr = addr;
+		}
+	}
+	flush_dcache_mmap_unlock(mapping);
+#endif
+}
+
+static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
+{
+	pte_t *ptep = NULL;
+
+        if (!pgd_none(*pgd)) {
+                pud_t *pud = pud_offset(pgd, addr);
+                if (!pud_none(*pud)) {
+                        pmd_t *pmd = pmd_offset(pud, addr);
+                        if (!pmd_none(*pmd)) {
+                                ptep = pte_offset_map(pmd, addr);
+                        }
+                }
+        }
+	return ptep;
+}
+
+/* While flushing by page is slightly less efficient, it allows detection
+   of pages without pte's and mappings with inequivalent aliases.  */
+
+#define FLUSH_CACHE_RANGE_BY_PAGE 0
 
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	int sr3;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
+	if ((end - start) < parisc_cache_flush_threshold
+	    && vma->vm_mm->context == mfsp(3)) {
+#if FLUSH_CACHE_RANGE_BY_PAGE
+		unsigned long addr;
+		pte_t *ptep;
+		pgd_t *pgd = vma->vm_mm->pgd;
+
+		for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+			ptep = get_ptep(pgd, addr);
+			if (!ptep) {
+				/* ??? Why don't we have a pte?  */
+				flush_cache_all();
+				return;
+			}
+			check_page_mapping(pte_page(*ptep));
+			flush_cache_page(vma, addr, pte_pfn(*ptep));
+		}
+#else
+		flush_user_dcache_range_asm(start,end);
+		flush_user_icache_range_asm(start,end);
+#endif
 	} else {
 		flush_cache_all();
 	}
@@ -513,3 +605,23 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
+
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags;
+
+	/* The PA-RISC 2.0 Architecture book states on page F-7:
+	   "Before any non-equivalent aliased translation is re-enabled,
+	    the virtual address range for the writeable page (the entire
+	    page) must be flushed from the cache, and the write-capable
+	    translation removed from the page table and purged from the
+	    TLB."  set_pte_at is used to setup COW pages, so the TLB
+	    must be purged.  Note: purge_tlb_entries can be called at
+	    startup with no context.  */
+
+	mtsp(mm->context,1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+}
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 6f05944..3caa199 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -483,7 +483,7 @@
 	 * B <-> _PAGE_DMB (memory break)
 	 *
 	 * Then incredible subtlety: The access rights are
-	 * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
+	 * _PAGE_GATEWAY, _PAGE_EXEC and _PAGE_WRITE
 	 * See 3-14 of the parisc 2.0 manual
 	 *
 	 * Finally, _PAGE_READ goes in the top bit of PL1 (so we
@@ -493,7 +493,7 @@
 
 	/* PAGE_USER indicates the page can be read with user privileges,
 	 * so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1
-	 * contains _PAGE_READ */
+	 * contains _PAGE_READ) */
 	extrd,u,*=      \pte,_PAGE_USER_BIT+32,1,%r0
 	depdi		7,11,3,\prot
 	/* If we're a gateway page, drop PL2 back to zero for promotion
@@ -1777,9 +1777,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1809,7 +1809,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1828,8 +1828,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1852,7 +1853,7 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..0299d63 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
 {
 	local_irq_disable();	/* PARANOID - should already be disabled */
 	mtctl(~0UL, 23);	/* EIRR : clear all pending external intr */
-	claim_cpu_irqs();
 #ifdef CONFIG_SMP
-	if (!cpu_eiem)
+	if (!cpu_eiem) {
+		claim_cpu_irqs();
 		cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+	}
 #else
+	claim_cpu_irqs();
 	cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 93ff3d9..5188abd 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -199,7 +199,6 @@ ENTRY(flush_instruction_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
 	load32		cache_info, %r1
 
 	/* Flush Instruction Cache */
@@ -208,20 +207,46 @@ ENTRY(flush_instruction_cache_local)
 	LDREG		ICACHE_STRIDE(%r1), %arg1
 	LDREG		ICACHE_COUNT(%r1), %arg2
 	LDREG		ICACHE_LOOP(%r1), %arg3
-	rsm             PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fioneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fisync	/* If loop < 0, do sync */
 
 fimanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fimanyloop	/* Adjusted inner loop decr */
-	fice            %r0(%sr1, %arg0)
-	fice,m		%arg1(%sr1, %arg0)	/* Last fice and addr adjust */
+	fice            %r0(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)	/* Last fice and addr adjust */
 	movb,tr		%arg3, %r31, fimanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fisync	/* Outer loop decr */
 
 fioneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fioneloop	/* Outer loop count decr */
-	fice,m		%arg1(%sr1, %arg0)	/* Fice for one loop */
+	/* Some implementations may flush with a single fice instruction */
+	cmpib,COND(>>=),n	15, %arg2, fioneloop2
+
+fioneloop1:
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	addib,COND(>)	-16, %arg2, fioneloop1
+	fice,m		%arg1(%sr2, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fisync	/* Predict branch taken */
+
+fioneloop2:
+	addib,COND(>)	-1, %arg2, fioneloop2	/* Outer loop count decr */
+	fice,m		%arg1(%sr2, %arg0)	/* Fice for one loop */
 
 fisync:
 	sync
@@ -240,8 +265,7 @@ ENTRY(flush_data_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
-	load32 		cache_info, %r1
+	load32		cache_info, %r1
 
 	/* Flush Data Cache */
 
@@ -249,20 +273,46 @@ ENTRY(flush_data_cache_local)
 	LDREG		DCACHE_STRIDE(%r1), %arg1
 	LDREG		DCACHE_COUNT(%r1), %arg2
 	LDREG		DCACHE_LOOP(%r1), %arg3
-	rsm		PSW_SM_I, %r22
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fdoneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fdsync	/* If loop < 0, do sync */
 
 fdmanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fdmanyloop	/* Adjusted inner loop decr */
-	fdce		%r0(%sr1, %arg0)
-	fdce,m		%arg1(%sr1, %arg0)	/* Last fdce and addr adjust */
+	fdce		%r0(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)	/* Last fdce and addr adjust */
 	movb,tr		%arg3, %r31, fdmanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fdsync	/* Outer loop decr */
 
 fdoneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fdoneloop	/* Outer loop count decr */
-	fdce,m		%arg1(%sr1, %arg0)	/* Fdce for one loop */
+	/* Some implementations may flush with a single fdce instruction */
+	cmpib,COND(>>=),n	15, %arg2, fdoneloop2
+
+fdoneloop1:
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	addib,COND(>)	-16, %arg2, fdoneloop1
+	fdce,m		%arg1(%sr2, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fdsync	/* Predict branch taken */
+
+fdoneloop2:
+	addib,COND(>)	-1, %arg2, fdoneloop2	/* Outer loop count decr */
+	fdce,m		%arg1(%sr2, %arg0)	/* Fdce for one loop */
 
 fdsync:
 	syncdma
@@ -277,7 +327,34 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+/* Macros to serialize TLB purge operations on SMP.  */
+
+	.macro	tlb_lock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock,%r1
+	ldo		R%pa_tlb_lock(%r1),\la
+	rsm		PSW_SM_I,\flags
+1:	LDCW		0(\la),\tmp
+	cmpib,<>,n	0,\tmp,3f
+2:	ldw		0(\la),\tmp
+	cmpb,<>		%r0,\tmp,1b
+	nop
+	b,n		2b
+3:
+#endif
+	.endm
+
+	.macro	tlb_unlock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldi		1,\tmp
+	stw		\tmp,0(\la)
+	mtsm		\flags
+#endif
+	.endm
+
+/* Copy page using kernel mapping.  */
+
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -399,7 +476,7 @@ ENTRY(copy_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,8 +499,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
-
 	/*
 	 * We can't do this since copy_user_page is used to bring in
 	 * file data that might have instructions. Since the data would
@@ -435,6 +510,11 @@ ENDPROC(copy_user_page_asm)
 	 * use it if more information is passed into copy_user_page().
 	 * Have to do some measurements to see if it is worthwhile to
 	 * lobby for such a change.
+	 *
+	 * JDA: Added code to flush the data cache, so this function
+	 * now works.  Even with this additional overhead, it may make
+	 * sense to use this function because it should handle dirty
+	 * `from' pages.
 	 */
 
 ENTRY(copy_user_page_asm)
@@ -466,9 +546,83 @@ ENTRY(copy_user_page_asm)
 
 	/* Purge any old translations */
 
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
+	tlb_unlock	%r20,%r21,%r22
+
+	ldil		L%dcache_stride, %r23
+	ldw		R%dcache_stride(%r23), %r23
+
+#ifdef CONFIG_64BIT
+	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
+	 * Unroll the loop by hand and arrange insn appropriately.
+	 * GCC probably can do this just as well.
+	 */
+
+	ldd		0(%r29), %r19
+	ldi		(PAGE_SIZE / 128), %r1
+
+	ldw		64(%r29), %r0		/* prefetch 1 cacheline ahead */
+	ldw		128(%r29), %r0		/* prefetch 2 */
+
+1:	ldd		8(%r29), %r20
+	ldw		192(%r29), %r0		/* prefetch 3 */
+	ldw		256(%r29), %r0		/* prefetch 4 */
+
+	ldd		16(%r29), %r21
+	ldd		24(%r29), %r22
+	std		%r19, 0(%r28)
+	std		%r20, 8(%r28)
+
+	ldd		32(%r29), %r19
+	ldd		40(%r29), %r20
+	std		%r21, 16(%r28)
+	std		%r22, 24(%r28)
+
+	ldd		48(%r29), %r21
+	ldd		56(%r29), %r22
+	std		%r19, 32(%r28)
+	std		%r20, 40(%r28)
+
+	ldd		64(%r29), %r19
+	ldd		72(%r29), %r20
+	std		%r21, 48(%r28)
+	std		%r22, 56(%r28)
+
+	ldd		80(%r29), %r21
+	ldd		88(%r29), %r22
+	std		%r19, 64(%r28)
+	std		%r20, 72(%r28)
+
+	ldd		 96(%r29), %r19
+	ldd		104(%r29), %r20
+	std		%r21, 80(%r28)
+	std		%r22, 88(%r28)
+
+	ldd		112(%r29), %r21
+	ldd		120(%r29), %r22
+	std		%r19, 96(%r28)
+	std		%r20, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r21, 112(%r28)
+	std		%r22, 120(%r28)
+
+	/* Flush lines.  */
+	ldo		128(%r28), %r24
+	fdc,m		%r23(%r28)
+2:	cmpb,COND(<<),n	%r28,%r24,2b
+	fdc,m		%r23(%r28)
 
+	/* conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 * The ldd should only get executed if the branch is taken.
+	 */
+	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
+	ldd		0(%r29), %r19		/* start next loads */
+
+#else
 	ldi		64, %r1
 
 	/*
@@ -480,9 +634,7 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
+1:	ldw		0(%r29), %r19
 	ldw		4(%r29), %r20
 	ldw		8(%r29), %r21
 	ldw		12(%r29), %r22
@@ -514,19 +666,26 @@ ENTRY(copy_user_page_asm)
 	stw		%r20, 52(%r28)
 	stw		%r21, 56(%r28)
 	stw		%r22, 60(%r28)
-	ldo		64(%r28), %r28
+
+	/* Flush lines.  */
+	ldo		64(%r28), %r24
+	fdc,m		%r23(%r28)
+2:	cmpb,COND(<<),n	%r28,%r24,2b
+	fdc,m		%r23(%r28)
+
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
+#endif
 
+	sync
 	bv		%r0(%r2)
 	nop
 	.exit
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -550,7 +709,9 @@ ENTRY(__clear_user_page_asm)
 
 	/* Purge any old translation */
 
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
 
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
@@ -580,8 +741,7 @@ ENTRY(__clear_user_page_asm)
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
-	stw		%r0, 0(%r28)
+1:	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
 	stw		%r0, 12(%r28)
@@ -606,7 +766,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_dcache_page_asm)
 	.proc
@@ -630,7 +790,9 @@ ENTRY(flush_dcache_page_asm)
 
 	/* Purge any old translation */
 
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
 
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), %r1
@@ -663,8 +825,11 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		%r1(%r28)
 
 	sync
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r25)
+	tlb_unlock	%r20,%r21,%r22
 	bv		%r0(%r2)
-	pdtlb		(%r25)
+	nop
 	.exit
 
 	.procend
@@ -692,7 +857,9 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
+	tlb_lock	%r20,%r21,%r22
 	pitlb		(%sr0,%r28)
+	tlb_unlock	%r20,%r21,%r22
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -725,8 +892,11 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r1(%r28)
 
 	sync
-	bv		%r0(%r2)
+	tlb_lock	%r20,%r21,%r22
 	pitlb		(%sr0,%r25)
+	tlb_unlock	%r20,%r21,%r22
+	bv		%r0(%r2)
+	nop
 	.exit
 
 	.procend
@@ -775,7 +945,7 @@ ENTRY(flush_kernel_dcache_page_asm)
 	.procend
 ENDPROC(flush_kernel_dcache_page_asm)
 
-ENTRY(purge_kernel_dcache_page)
+ENTRY(purge_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -815,7 +985,7 @@ ENTRY(purge_kernel_dcache_page)
 	.exit
 
 	.procend
-ENDPROC(purge_kernel_dcache_page)
+ENDPROC(purge_kernel_dcache_page_asm)
 
 ENTRY(flush_user_dcache_range_asm)
 	.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index a7bb757..546c51d 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -159,4 +159,4 @@ EXPORT_SYMBOL(_mcount);
 #endif
 
 /* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 12c1ed3..5dd1059 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -314,7 +314,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #if DEBUG_SIG
 	/* Assert that we're flushing in the correct space... */
 	{
-		int sid;
+		unsigned long sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
 		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
 		       sid, frame->tramp);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..f0cb56e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 45b7389..53a1c69 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -76,7 +76,7 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 6) < cpt) {
+	if ((cycles_elapsed >> 7) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index dc5114b..1d6d390 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -531,6 +531,7 @@ out_eoi:
 void
 handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 {
+	struct irqaction *action;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	kstat_incr_irqs_this_cpu(irq, desc);
@@ -538,7 +539,9 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 	if (chip->irq_ack)
 		chip->irq_ack(&desc->irq_data);
 
-	handle_irq_event_percpu(desc, desc->action);
+	action = desc->action;
+	if (action)
+		handle_irq_event_percpu(desc, action);
 
 	if (chip->irq_eoi)
 		chip->irq_eoi(&desc->irq_data);

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On Mon, Jan 2, 2012 at 6:12 PM, John David Anglin <dave.anglin@bell.net=
> wrote:
> None of this worked. =A0Attached patch as it stands. =A0Comments and =
testing
> appreciated.

Could you clarify what you mean by "none of this worked?"

Cheers,
Carlos.
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On 1/3/2012 6:50 AM, Carlos O'Donell wrote:
> On Mon, Jan 2, 2012 at 6:12 PM, John David Anglin<dave.anglin@bell.net>  wrote:
>> None of this worked.  Attached patch as it stands.  Comments and testing
>> appreciated.
> Could you clarify what you mean by "none of this worked?"
>

I tried eliminating the flushes that occur in kunmap_atomic on PA8800 
and PA8900
after the calls to clear_user_page and copy_user_page by defining 
clear_user_highpage
and copy_user_highpage.  I had thought the flushes weren't necessary.  
There's something
about this that I don't understand.  Why do we need to flush 
non-equivalent page mappings
that aren't used?

Also tried:
#define flush_cache_dup_mm(mm)        do { } while (0)

In both cases, init died causing a panic at boot.  Maybe there's 
something missing at
startup.

Most arch's have the above define for flush_cache_dup_mm.  Our define 
really hurts
fork performance.  The GCC testsuite takes almost twice as long to run 
on linux as hpux.
On the other hand, build times are fairly comparable.

Dave

-- 
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On Tue, 2012-01-03 at 10:13 -0500, John David Anglin wrote:
> On 1/3/2012 6:50 AM, Carlos O'Donell wrote:
> > On Mon, Jan 2, 2012 at 6:12 PM, John David Anglin<dave.anglin@bell.net>  wrote:
> >> None of this worked.  Attached patch as it stands.  Comments and testing
> >> appreciated.
> > Could you clarify what you mean by "none of this worked?"
> >
> 
> I tried eliminating the flushes that occur in kunmap_atomic on PA8800 
> and PA8900
> after the calls to clear_user_page and copy_user_page by defining 
> clear_user_highpage
> and copy_user_highpage.  I had thought the flushes weren't necessary.  
> There's something
> about this that I don't understand.  Why do we need to flush 
> non-equivalent page mappings
> that aren't used?

But they are used:  Your work makes sure that all user space mappings
are equivalent.  However, because of the way Linux sets up kernel
mappings (from the pfn array and offsets) the user virtual address and
kernel virtual address almost never are.  kmap is exclusively used so
the kernel can access a user page, and at that point, we need to flush
because we've set up an inequivalent alias (even if it's only done for
read)

kmap/kmap_atomic is used in more than just copy/flush ... or did you
mean that you removed the kmap calls in copy/flush and the whole thing
doesn't work (rather than as you imply you removed the flush in kunmap?)

> Also tried:
> #define flush_cache_dup_mm(mm)        do { } while (0)
> 
> In both cases, init died causing a panic at boot.  Maybe there's 
> something missing at
> startup.
> 
> Most arch's have the above define for flush_cache_dup_mm.  Our define 
> really hurts
> fork performance.  The GCC testsuite takes almost twice as long to run 
> on linux as hpux.
> On the other hand, build times are fairly comparable.

I'll look into this, but I fear, because of the way the pa cache is
tagged, we'll have to keep the flush (same goes for flush_cache_mm).

James


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On Tue, 2012-01-03 at 10:13 -0500, John David Anglin wrote:
> On 1/3/2012 6:50 AM, Carlos O'Donell wrote:
> > On Mon, Jan 2, 2012 at 6:12 PM, John David Anglin<dave.anglin@bell.net>  wrote:
> >> None of this worked.  Attached patch as it stands.  Comments and testing
> >> appreciated.
> > Could you clarify what you mean by "none of this worked?"
> >
> 
> I tried eliminating the flushes that occur in kunmap_atomic on PA8800 
> and PA8900
> after the calls to clear_user_page and copy_user_page by defining 
> clear_user_highpage
> and copy_user_highpage.  I had thought the flushes weren't necessary.  
> There's something
> about this that I don't understand.  Why do we need to flush 
> non-equivalent page mappings
> that aren't used?

But they are used:  Your work makes sure that all user space mappings
are equivalent.  However, because of the way Linux sets up kernel
mappings (from the pfn array and offsets) the user virtual address and
kernel virtual address almost never are.  kmap is exclusively used so
the kernel can access a user page, and at that point, we need to flush
because we've set up an inequivalent alias (even if it's only done for
read)

kmap/kmap_atomic is used in more than just copy/flush ... or did you
mean that you removed the kmap calls in copy/flush and the whole thing
doesn't work (rather than as you imply you removed the flush in kunmap?)

> Also tried:
> #define flush_cache_dup_mm(mm)        do { } while (0)
> 
> In both cases, init died causing a panic at boot.  Maybe there's 
> something missing at
> startup.
> 
> Most arch's have the above define for flush_cache_dup_mm.  Our define 
> really hurts
> fork performance.  The GCC testsuite takes almost twice as long to run 
> on linux as hpux.
> On the other hand, build times are fairly comparable.

I'll look into this, but I fear, because of the way the pa cache is
tagged, we'll have to keep the flush (same goes for flush_cache_mm).

James


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From - Thu Nov 08 21:07:49 2018
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Subject: Re: Happy New Year PARISC
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On 1/3/2012 10:32 AM, James Bottomley wrote:
> On Tue, 2012-01-03 at 10:13 -0500, John David Anglin wrote:
>> On 1/3/2012 6:50 AM, Carlos O'Donell wrote:
>>> On Mon, Jan 2, 2012 at 6:12 PM, John David Anglin<dave.anglin@bell.net>   wrote:
>>>> None of this worked.  Attached patch as it stands.  Comments and testing
>>>> appreciated.
>>> Could you clarify what you mean by "none of this worked?"
>>>
>> I tried eliminating the flushes that occur in kunmap_atomic on PA8800
>> and PA8900
>> after the calls to clear_user_page and copy_user_page by defining
>> clear_user_highpage
>> and copy_user_highpage.  I had thought the flushes weren't necessary.
>> There's something
>> about this that I don't understand.  Why do we need to flush
>> non-equivalent page mappings
>> that aren't used?
> But they are used:  Your work makes sure that all user space mappings
> are equivalent.  However, because of the way Linux sets up kernel
> mappings (from the pfn array and offsets) the user virtual address and
> kernel virtual address almost never are.  kmap is exclusively used so
> the kernel can access a user page, and at that point, we need to flush
> because we've set up an inequivalent alias (even if it's only done for
> read)
>
> kmap/kmap_atomic is used in more than just copy/flush ... or did you
> mean that you removed the kmap calls in copy/flush and the whole thing
> doesn't work (rather than as you imply you removed the flush in kunmap?)
>
I didn't modify kmap/kunmap_atomic.  I wrote versions of 
clear_user_highpage and
copy_user_highpage to replace the default versions in linux/highmem.h.  
I replaced
the kunmap_atomic calls with pagefault_enable to avoid the flush in the 
returns from
clear/copy_user_page (actually, I only used one call to 
pagefault_enable, so maybe
that was the issue).  As far as I could tell, clear/copy_user_page are 
only called via
clear/copy_user_highpage.  The behavior of kmap/kunmap_atomic in other 
situations
shouldn't have changed.

Chapter F makes it clear that *all* inequivalent aliases to a page have 
to be removed
when a write capable translation is enabled (no flush needed).  When a 
write-capable
translation needs to be read through an inequivalent alias, the page is 
supposed to
be flushed, the write-capable translation is supposed to be removed from 
the page
directory and then purged.

That's why I added the purge_tlb_entries calls to set_pte_at and 
ptep_set_wrprotect.
We avoid the flush by doing the `from' read through an equivalent 
mapping.  However,
the inequivalent mapping is still there.  It seems to be necessary to 
purge the TLB
entries prior to clearing/copying.  However, from what I read in Chapter 
F, the purge
is probably insufficient to speculative prevent move in.  If I recall 
correctly, the
kunmap_atomic also generates another TLB purge as well as a flush.

There is a special access type (7) that can be used to prevent read and 
write move in.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:07:49 2018
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On 1/3/2012 11:26 AM, John David Anglin wrote:
> I replaced
> the kunmap_atomic calls with pagefault_enable to avoid the flush in 
> the returns from
> clear/copy_user_page (actually, I only used one call to 
> pagefault_enable, so maybe
> that was the issue).
It looks like I messed up the enable.  Will retry.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:07:49 2018
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On Tue, 2012-01-03 at 11:26 -0500, John David Anglin wrote:
> On 1/3/2012 10:32 AM, James Bottomley wrote:
> > On Tue, 2012-01-03 at 10:13 -0500, John David Anglin wrote:
> >> On 1/3/2012 6:50 AM, Carlos O'Donell wrote:
> >>> On Mon, Jan 2, 2012 at 6:12 PM, John David Anglin<dave.anglin@bell.net>   wrote:
> >>>> None of this worked.  Attached patch as it stands.  Comments and testing
> >>>> appreciated.
> >>> Could you clarify what you mean by "none of this worked?"
> >>>
> >> I tried eliminating the flushes that occur in kunmap_atomic on PA8800
> >> and PA8900
> >> after the calls to clear_user_page and copy_user_page by defining
> >> clear_user_highpage
> >> and copy_user_highpage.  I had thought the flushes weren't necessary.
> >> There's something
> >> about this that I don't understand.  Why do we need to flush
> >> non-equivalent page mappings
> >> that aren't used?
> > But they are used:  Your work makes sure that all user space mappings
> > are equivalent.  However, because of the way Linux sets up kernel
> > mappings (from the pfn array and offsets) the user virtual address and
> > kernel virtual address almost never are.  kmap is exclusively used so
> > the kernel can access a user page, and at that point, we need to flush
> > because we've set up an inequivalent alias (even if it's only done for
> > read)
> >
> > kmap/kmap_atomic is used in more than just copy/flush ... or did you
> > mean that you removed the kmap calls in copy/flush and the whole thing
> > doesn't work (rather than as you imply you removed the flush in kunmap?)
> >
> I didn't modify kmap/kunmap_atomic.  I wrote versions of 
> clear_user_highpage and
> copy_user_highpage to replace the default versions in linux/highmem.h.  
> I replaced
> the kunmap_atomic calls with pagefault_enable to avoid the flush in the 
> returns from
> clear/copy_user_page (actually, I only used one call to 
> pagefault_enable, so maybe
> that was the issue).  As far as I could tell, clear/copy_user_page are 
> only called via
> clear/copy_user_highpage.  The behavior of kmap/kunmap_atomic in other 
> situations
> shouldn't have changed.
> 
> Chapter F makes it clear that *all* inequivalent aliases to a page have 
> to be removed
> when a write capable translation is enabled (no flush needed).  When a 
> write-capable
> translation needs to be read through an inequivalent alias, the page is 
> supposed to
> be flushed, the write-capable translation is supposed to be removed from 
> the page
> directory and then purged.
> 
> That's why I added the purge_tlb_entries calls to set_pte_at and 
> ptep_set_wrprotect.
> We avoid the flush by doing the `from' read through an equivalent 
> mapping.  However,
> the inequivalent mapping is still there.  It seems to be necessary to 
> purge the TLB
> entries prior to clearing/copying.  However, from what I read in Chapter 
> F, the purge
> is probably insufficient to speculative prevent move in.  If I recall 
> correctly, the
> kunmap_atomic also generates another TLB purge as well as a flush.
> 
> There is a special access type (7) that can be used to prevent read and 
> write move in.

Actually, now I recall why copy_user_highpage never got implemented
through the tmpalias space:  it does cache hot copies (so we effectively
copy straight from the cache of the source address into the cache of the
destination).  This is all fine and dandy and very fast until we have to
copy executable pages: in this case, we set up an I/D cache
inconsistency in userspace (which userspace apparently doesn't expect).
It can be resolved by flushing the userspace cache, so the page becomes
up to date an I movein sees the correct data, which is probably what the
flush you still need is doing.

James


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On 1/3/2012 11:42 AM, James Bottomley wrote:
> On Tue, 2012-01-03 at 11:26 -0500, John David Anglin wrote:
>> On 1/3/2012 10:32 AM, James Bottomley wrote:
>>> On Tue, 2012-01-03 at 10:13 -0500, John David Anglin wrote:
>>>> On 1/3/2012 6:50 AM, Carlos O'Donell wrote:
>>>>> On Mon, Jan 2, 2012 at 6:12 PM, John David Anglin<dave.anglin@bell.net>    wrote:
>>>>>> None of this worked.  Attached patch as it stands.  Comments and testing
>>>>>> appreciated.
>>>>> Could you clarify what you mean by "none of this worked?"
>>>>>
>>>> I tried eliminating the flushes that occur in kunmap_atomic on PA8800
>>>> and PA8900
>>>> after the calls to clear_user_page and copy_user_page by defining
>>>> clear_user_highpage
>>>> and copy_user_highpage.  I had thought the flushes weren't necessary.
>>>> There's something
>>>> about this that I don't understand.  Why do we need to flush
>>>> non-equivalent page mappings
>>>> that aren't used?
>>> But they are used:  Your work makes sure that all user space mappings
>>> are equivalent.  However, because of the way Linux sets up kernel
>>> mappings (from the pfn array and offsets) the user virtual address and
>>> kernel virtual address almost never are.  kmap is exclusively used so
>>> the kernel can access a user page, and at that point, we need to flush
>>> because we've set up an inequivalent alias (even if it's only done for
>>> read)
>>>
>>> kmap/kmap_atomic is used in more than just copy/flush ... or did you
>>> mean that you removed the kmap calls in copy/flush and the whole thing
>>> doesn't work (rather than as you imply you removed the flush in kunmap?)
>>>
>> I didn't modify kmap/kunmap_atomic.  I wrote versions of
>> clear_user_highpage and
>> copy_user_highpage to replace the default versions in linux/highmem.h.
>> I replaced
>> the kunmap_atomic calls with pagefault_enable to avoid the flush in the
>> returns from
>> clear/copy_user_page (actually, I only used one call to
>> pagefault_enable, so maybe
>> that was the issue).  As far as I could tell, clear/copy_user_page are
>> only called via
>> clear/copy_user_highpage.  The behavior of kmap/kunmap_atomic in other
>> situations
>> shouldn't have changed.
>>
>> Chapter F makes it clear that *all* inequivalent aliases to a page have
>> to be removed
>> when a write capable translation is enabled (no flush needed).  When a
>> write-capable
>> translation needs to be read through an inequivalent alias, the page is
>> supposed to
>> be flushed, the write-capable translation is supposed to be removed from
>> the page
>> directory and then purged.
>>
>> That's why I added the purge_tlb_entries calls to set_pte_at and
>> ptep_set_wrprotect.
>> We avoid the flush by doing the `from' read through an equivalent
>> mapping.  However,
>> the inequivalent mapping is still there.  It seems to be necessary to
>> purge the TLB
>> entries prior to clearing/copying.  However, from what I read in Chapter
>> F, the purge
>> is probably insufficient to speculative prevent move in.  If I recall
>> correctly, the
>> kunmap_atomic also generates another TLB purge as well as a flush.
>>
>> There is a special access type (7) that can be used to prevent read and
>> write move in.
> Actually, now I recall why copy_user_highpage never got implemented
> through the tmpalias space:  it does cache hot copies (so we effectively
> copy straight from the cache of the source address into the cache of the
> destination).  This is all fine and dandy and very fast until we have to
> copy executable pages: in this case, we set up an I/D cache
> inconsistency in userspace (which userspace apparently doesn't expect).
> It can be resolved by flushing the userspace cache, so the page becomes
> up to date an I movein sees the correct data, which is probably what the
> flush you still need is doing.
>
Note that I added flush code to "copy_user_page_asm" to handle this.  I 
guess this
flush could be avoided if we knew the page wasn't executable, but it is 
not that easy
to figure out if a page is executable without the vma or mm.  I also 
added 64-bit
support and renamed the old version to copy_page_asm so both versions 
would be
available for use/testing.

I see that copy_user_highpage does have the vma, so maybe there is some hope
of further optimizing copy_user_page_asm.

I came to the conclusion that it was better to do a flush when copying 
through the
tmpalias space than try to flush the `from' page in ptep_set_wrprotect 
as proposed
by Niibe a couple of years ago.  First, a COW page may never be written 
to, so
why do  a unnecessary flush (my assumption based on the documentation is 
that
clear/copy_user_page are primarily for COW support)?

At the time the minifail bug was being discussed, I hadn't realized that 
the TLB
needed purging in set_pte_at and ptep_set_wrprotect.  This became clear when
I looked at arm.  Without the TLB purge, the flush proposed by Niibe was 
still
racy.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:07:49 2018
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Kernel math emulation bug
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The following testcase fails when compiled with -march=2.0:

/* Test front-end conversions, optimizer conversions, and run-time
   conversions between different arithmetic types.

   Constants are specified in a non-obvious way to make them work for
   any word size.  Their value on a 32-bit machine is indicated in the
   comments.

   Note that this code is NOT intended for testing of accuracy of fp
   conversions.  */

unsigned long long int
f2ull(float f)
{
  return (unsigned long long int) f;
}

test_float_to_longlong_integer()
{
  if (f2ull((float) ((~0ULL) >> 1)) != (~0ULL) >> 1 &&	/* 0x7fffffff */
      f2ull((float) ((~0ULL) >> 1)) != ((~0ULL) >> 1) + 1)
    abort();
}

main()
{
  test_float_to_longlong_integer();
  exit(0);
}

The problem is the fcnv,t,sgl,udw instruction. It appears it isn't emulated
correctly.  Test doesn't fail on hpux.

Dave
-- 
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Occasionally, I see messages like:

ioctl32(python:29268): Unknown cmd fd(7) cmd(00005302){t:'S';sz:0}  
arg(fe1f3fcc) on /dev/pts/5

I read somewhere that this may be caused by not using the compat_ioctl  
method (32-bit apps
running on 64-bit kernel).

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:07:49 2018
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From: Rolf Eike Beer <eike@sf-mail.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 2/2] HIL: remove one goto
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>From 71de9e0407870c980e57335a5bc555f24d90683b Mon Sep 17 00:00:00 2001
From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Date: Mon, 16 Jan 2012 19:44:01 +0100
Subject: [PATCH 2/2] HIL: remove one goto

This goto is only used to skip the next instruction, which can easily be done
without a goto.

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 drivers/input/serio/hil_mlc.c |   11 +++++------
 1 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index bfd3865..0280167 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -686,13 +686,12 @@ static int hilse_donode(hil_mlc *mlc)
 		write_lock_irqsave(&mlc->lock, flags);
 		pack = node->object.packet;
 	out:
-		if (mlc->istarted)
-			goto out2;
-		/* Prepare to receive input */
-		if ((node + 1)->act & HILSE_IN)
-			hilse_setup_input(mlc, node + 1);
+		if (!mlc->istarted) {
+			/* Prepare to receive input */
+			if ((node + 1)->act & HILSE_IN)
+				hilse_setup_input(mlc, node + 1);
+		}
 
-	out2:
 		write_unlock_irqrestore(&mlc->lock, flags);
 
 		if (down_trylock(&mlc->osem)) {
-- 
1.7.7


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From - Thu Nov 08 21:07:49 2018
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From: Rolf Eike Beer <eike@sf-mail.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 1/2] parisc: fix compile without CONFIG_PCI
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>From f49bd6e33a3b6f499a6039a5980af21893524e86 Mon Sep 17 00:00:00 2001
From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Date: Mon, 16 Jan 2012 18:59:29 +0100
Subject: [PATCH 1/2] parisc: fix compile without CONFIG_PCI

This function is already defined as a noop in include/asm-generic/iomap.h.

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 arch/parisc/lib/iomap.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index fb8e10a..b2b0408 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -436,12 +436,14 @@ void ioport_unmap(void __iomem *addr)
 	}
 }
 
+#ifdef CONFIG_PCI
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
 	if (!INDIRECT_ADDR(addr)) {
 		iounmap(addr);
 	}
 }
+#endif /* CONFIG_PCI */
 
 EXPORT_SYMBOL(ioread8);
 EXPORT_SYMBOL(ioread16);
@@ -461,4 +463,6 @@ EXPORT_SYMBOL(iowrite16_rep);
 EXPORT_SYMBOL(iowrite32_rep);
 EXPORT_SYMBOL(ioport_map);
 EXPORT_SYMBOL(ioport_unmap);
+#ifdef CONFIG_PCI
 EXPORT_SYMBOL(pci_iounmap);
+#endif /* CONFIG_PCI */
-- 
1.7.7


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From - Thu Nov 08 21:07:49 2018
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Subject: [PATCH 0/2] Random PARISC patches
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This little series has 2 patches that have nothing to do with each other 
beyond the point that I stumbled over both of these things today.

The first one fixes a compile error if CONFIG_PCI is not set, e.g. for the 
Apollo 705 I have. This is also needed in 3.2, although it covers also 
pci_iomap() in this case which was moved to lib/ by a recent patch.

The other one is just a minor code cleanup in the HIL driver.

Eike
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From - Thu Nov 08 21:07:49 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH 2/2] HIL: remove one goto
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On 1/16/2012 2:13 PM, Rolf Eike Beer wrote:
> +		if (!mlc->istarted) {
> +			/* Prepare to receive input */
> +			if ((node + 1)->act&  HILSE_IN)
> +				hilse_setup_input(mlc, node + 1);
> +		}
It looks to me like this could be further simplified with an &&.

Dave

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From - Thu Nov 08 21:07:49 2018
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Subject: Boot error using 3.2.1: swapper (pid 1): Illegal instruction (code 8)
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Machine is an Apollo 705, previous kernel version was 2.6.28. Any hints 
appreciated. Config attached.

Eike

Linux version 3.2.1 (root@apollo) (gcc version 4.5.3 (Gentoo 4.5.3-r1 p1.0, 
pie-0.4.5) ) #1 Mon Jan 16 15:48:44 CET 2012
unwind_init: start = 0x1043b000, end = 0x1046b8f0, entries = 12431
FP[0] enabled: Rev 3 Model 0
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: Snake.
model 00003020 00000481 00000000 00000000 77aac223 ffffffff 00000004 0000000d 
00000000
vers  00000003
model 9000/705
Total Memory: 64 MB
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256
Kernel command line: root=/dev/sdb5 console=ttyS0,57600 console=tty0 
palo_kernel=2/vmlinux-3.2.1
PID hash table entries: 256 (order: -2, 1024 bytes)
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 60612k/65536k available (2558k kernel code, 4924k reserved, 1243k 
data, 236k init)
virtual kernel memory layout:
    vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
    memory  : 0x10000000 - 0x14000000   (  64 MB)
      .init : 0x104e0000 - 0x1051b000   ( 236 kB)
      .data : 0x1037fbf4 - 0x104b6810   (1243 kB)
      .text : 0x10100000 - 0x1037fbf4   (2558 kB)
SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
NR_IRQS:96
Console: colour dummy device 128x48
console [tty0] enabled, bootconsole disabled
Linux version 3.2.1 (root@apollo) (gcc version 4.5.3 (Gentoo 4.5.3-r1 p1.0, 
pie-0.4.5) ) #1 Mon Jan 16 15:48:44 CET 2012
unwind_init: start = 0x1043b000, end = 0x1046b8f0, entries = 12431
FP[0] enabled: Rev 3 Model 0
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: Snake.
model 00003020 00000481 00000000 00000000 77aac223 ffffffff 00000004 0000000d 
00000000
vers  00000003
model 9000/705
Total Memory: 64 MB
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256
Kernel command line: root=/dev/sdb5 console=ttyS0,57600 console=tty0 
palo_kernel=2/vmlinux-3.2.1
PID hash table entries: 256 (order: -2, 1024 bytes)
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 60612k/65536k available (2558k kernel code, 4924k reserved, 1243k 
data, 236k init)
virtual kernel memory layout:
    vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
    memory  : 0x10000000 - 0x14000000   (  64 MB)
      .init : 0x104e0000 - 0x1051b000   ( 236 kB)
      .data : 0x1037fbf4 - 0x104b6810   (1243 kB)
      .text : 0x10100000 - 0x1037fbf4   (2558 kB)
SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
NR_IRQS:96
Console: colour dummy device 128x48
console [tty0] enabled, bootconsole disabled
Calibrating delay loop... 34.61 BogoMIPS (lpj=173056)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
devtmpfs: initialized
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Stinger Optional Graphics at 0xf4000000 [0] { 10, 0x0, 0x006, 0x00077 }
2. Flounder Core BA at 0xf082f000 [2] { 11, 0x0, 0x008, 0x00070 }
3. Flounder Core SCSI at 0xf0825000 [2/0/1] { 10, 0x0, 0x008, 0x00071 }
4. Flounder Core LAN (802.3) at 0xf0826000 [2/0/2] { 10, 0x0, 0x008, 0x00072 }
5. Flounder Core HIL at 0xf0821000 [2/0/3] { 10, 0x0, 0x008, 0x00073 }
6. Flounder Core RS-232 at 0xf0823000 [2/0/4] { 10, 0x0, 0x008, 0x00075 }
7. Flounder Core RS-232 at 0xf0822000 [2/0/5] { 10, 0x0, 0x008, 0x00075 }
8. Flounder Core Centronics at 0xf0824000 [2/0/6] { 10, 0x0, 0x008, 0x00074 }
9. Flounder Audio at 0xf1000000 [2/0/8] { 10, 0x0, 0x008, 0x0007a }
10. Flounder (705) at 0xfffbe000 [8] { 0, 0x0, 0x302, 0x00004 }
11. Memory at 0xfffbf000 [9] { 1, 0x0, 0x018, 0x00009 }
CPU(s): 1 x PA7000 (PCX-S) at 35.000000 MHz
Setting cache flush threshold to de0 (1 CPUs online)
Asp version 1 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered
powersw: Soft power switch support not available.
bio: create slab <bio-0> at 0
SCSI subsystem initialized
Advanced Linux Sound Architecture Driver Version 1.0.24.
Switching to clocksource cr16
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
PDC console driver not registered anymore, not creating ttyB
Chassis warnings not supported.
msgmni has been set to 118
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9a
    id 27f12392-40a00499, conforms to spec rev. 8.02
    graphics card name: HPA1991AGrayscale
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, HPA1991AGrayscale, id: 27f12392, 
mmio: 0xf4100000
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
2:0:4: ttyS0 at MMIO 0xf0823800 (irq = 20) is a 16550A
console [ttyS0] enabled
2:0:5: ttyS1 at MMIO 0xf0822800 (irq = 21) is a 16550A
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 22 [PCSPP]
parport0: fix this legacy no-device port driver!
brd: module loaded
loop: module loaded
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0 
scsi0 : LASI SCSI 53c700
scsi 0:0:0:0: Direct-Access     TEAC     FC-1     HF   07 RV B PQ: 0 ANSI: 1 
CCS
scsi 0:0:4:0: Direct-Access     SEAGATE  ST39173N         6244 PQ: 0 ANSI: 2
sd 0:0:0:0: [sda] 5120 256-byte logical blocks: (1.31 MB/1.25 MiB)
sd 0:0:4:0: Enabling Tag Command Queuing
HP SDC: HP SDC at 0xf0821000, IRQ 18 (NMI IRQ 19)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:4:0: [sdb] 17783240 512-byte logical blocks: (9.10 GB/8.47 GiB)
sd 0:0:0:0: [sda] Cache data unavailable
sd 0:0:0:0: [sda] Assuming drive cache: write through
HP SDC: New style SDC
sd 0:0:4:0: [sdb] Write Protect is off
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
sd 0:0:0:0: [sda] 5120 256-byte logical blocks: (1.31 MB/1.25 MiB)
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
sd 0:0:4:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and 
FUA
sd 0:0:0:0: [sda] Cache data unavailable
sd 0:0:0:0: [sda] Assuming drive cache: write through
mousedev: PS/2 mouse device common for all mice
 sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 sdb6 >
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
sd 0:0:4:0: [sdb] Attached SCSI disk
harmony: cannot allocate graveyard buffer!
harmony: probe of 2:0:8 failed with error -12
ALSA device list:
  No soundcards found.
TCP cubic registered
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
rtc-generic rtc-generic: setting system clock to 2012-01-17 10:01:01 UTC 
(1326794461)
HIL: HIL keyboard found (did = 0xdf, lang = english.us)
input: HIL keyboard as /devices/serio0/input/input0
sd 0:0:0:0: [sda] Unhandled sense code
sd 0:0:0:0: [sda]  Result: hostbyte=0x00 driverbyte=0x08
sd 0:0:0:0: [sda]  Sense Key : 0x3 [current] 
Info fld=0x0
sd 0:0:0:0: [sda]  ASC=0x30 ASCQ=0x0
sd 0:0:0:0: [sda] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 08 00
end_request: I/O error, dev sda, sector 0
Buffer I/O error on device sda, logical block 0
sd 0:0:0:0: [sda] Unhandled sense code
sd 0:0:0:0: [sda]  Result: hostbyte=0x00 driverbyte=0x08
sd 0:0:0:0: [sda]  Sense Key : 0x3 [current] 
Info fld=0x0
sd 0:0:0:0: [sda]  ASC=0x30 ASCQ=0x0
sd 0:0:0:0: [sda] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 08 00
end_request: I/O error, dev sda, sector 0
Buffer I/O error on device sda, logical block 0
 sda: unable to read partition table
sd 0:0:0:0: [sda] 5120 256-byte logical blocks: (1.31 MB/1.25 MiB)
sd 0:0:0:0: [sda] Cache data unavailable
sd 0:0:0:0: [sda] Assuming drive cache: write through
sd 0:0:0:0: [sda] Attached SCSI removable disk
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sdb5): mounted filesystem with writeback data mode
VFS: Mounted root (ext3 filesystem) readonly on device 8:21.
Freeing unused kernel memory: 236k freed
      _______________________________ 
     < Your System ate a SPARC! Gah! >
      ------------------------------- 
             \   ^__^
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
swapper (pid 1): Illegal instruction (code 8)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000000000000000000000000 Not tainted
r00-03  00000000 00000003 1010eb18 0000000f
r04-07  104d2800 ffeffff1 100272c0 00000000
r08-11  0f2ff000 0f000000 13da8ffc 13c20508
r12-15  00000000 13d92000 13c20508 00000000
r16-19  00000000 00000023 00000020 00000001
r20-23  00000000 00000000 0000017d 00000020
r24-27  00000000 00000000 0000a2c0 10474000
r28-31  0f2ff000 00000000 13c20740 00000014
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101004ec 101004f0
 IIR: 0f801280    ISR: 00000000  IOR: 0f2ff000
 CPU:        0   CR30: 13c20000 CR31: 000000e0
 ORIG_R28: fffff000
 IAOQ[0]: __clear_user_page_asm+0x20/0x70
 IAOQ[1]: __clear_user_page_asm+0x24/0x70
 RP(r2): clear_user_page_asm+0x14/0x24
Backtrace:
 [<1010eb18>] clear_user_page_asm+0x14/0x24
 [<10174d48>] handle_pte_fault+0x1d4/0x610
 [<10175244>] handle_mm_fault+0xc0/0xf0
 [<101754a8>] __get_user_pages+0x170/0x348
 [<1018f3d4>] get_arg_page+0x5c/0xd8
 [<1018f638>] copy_strings+0xec/0x228
 [<1018f790>] copy_strings_kernel+0x1c/0x30
 [<1019025c>] do_execve+0x16c/0x2b8
 [<10114084>] sys_execve+0x40/0x6c
 [<10103084>] __execve+0x20/0x34
 [<10129c98>] vprintk+0x384/0x3d8
 [<1010ade8>] printk+0x24/0x34
 [<1010d5f0>] init_post+0x94/0xc8
 [<104e1c64>] kernel_init+0x11c/0x130

Backtrace:
 [<1010f514>] die_if_kernel+0x138/0x1b0
 [<1010f9a8>] handle_interruption+0x1ac/0x614
 [<10104078>] intr_check_sig+0x0/0x34
 [<101004f0>] __clear_user_page_asm+0x24/0x70

---[ end trace 37142cbeb02a4c73 ]---
note: swapper[1] exited with preempt_count 1
BUG: scheduling while atomic: swapper/1/0x10000001
Modules linked in:
Backtrace:
 [<1010b244>] __schedule+0x98/0x320
 [<10124280>] __cond_resched+0x2c/0x50
 [<1010b57c>] _cond_resched+0x34/0x50
 [<1012be44>] put_files_struct+0x8c/0x108
 [<1012c110>] do_exit+0x200/0x5a8
 [<1010f57c>] die_if_kernel+0x1a0/0x1b0
 [<1010f9a8>] handle_interruption+0x1ac/0x614
 [<10104078>] intr_check_sig+0x0/0x34
 [<101004f0>] __clear_user_page_asm+0x24/0x70

BUG: scheduling while atomic: swapper/1/0x10000001
Modules linked in:
Backtrace:
 [<1010b244>] __schedule+0x98/0x320
 [<10124280>] __cond_resched+0x2c/0x50
 [<1010b57c>] _cond_resched+0x34/0x50
 [<1012be44>] put_files_struct+0x8c/0x108
 [<1012c110>] do_exit+0x200/0x5a8
 [<1010f57c>] die_if_kernel+0x1a0/0x1b0
 [<1010f9a8>] handle_interruption+0x1ac/0x614
 [<10104078>] intr_check_sig+0x0/0x34
 [<101004f0>] __clear_user_page_asm+0x24/0x70

Kernel panic - not syncing: Attempted to kill init!
Backtrace:
 [<1010abf0>] panic+0x94/0x268
 [<1012bfd0>] do_exit+0xc0/0x5a8
 [<1010f57c>] die_if_kernel+0x1a0/0x1b0
 [<1010f9a8>] handle_interruption+0x1ac/0x614
 [<10104078>] intr_check_sig+0x0/0x34
 [<101004f0>] __clear_user_page_asm+0x24/0x70

--nextPart4974704.aTbWWglFck
Content-Disposition: attachment; filename=".config"
Content-Transfer-Encoding: 7Bit
Content-Type: text/plain; charset="utf-8"; name="config-705-3.2.1"

#
# Automatically generated file; DO NOT EDIT.
# Linux/parisc 3.2.0 Kernel Configuration
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_HAVE_IRQ_WORK=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_FHANDLE=y
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_GENERIC_HARDIRQS=y

#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_PREEMPT_RCU is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
# CONFIG_CGROUPS is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EXPERT is not set
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# CONFIG_PERF_COUNTERS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
CONFIG_PROFILING=y
# CONFIG_OPROFILE is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y

#
# GCOV-based kernel profiling
#
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_BLOCK=y
# CONFIG_LBDAF is not set
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_BSGLIB=y
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
CONFIG_INLINE_SPIN_UNLOCK=y
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
CONFIG_INLINE_READ_UNLOCK=y
# CONFIG_INLINE_READ_UNLOCK_BH is not set
CONFIG_INLINE_READ_UNLOCK_IRQ=y
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
CONFIG_INLINE_WRITE_UNLOCK=y
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
# CONFIG_MUTEX_SPIN_ON_OWNER is not set
# CONFIG_FREEZER is not set

#
# Processor type and features
#
CONFIG_PA7000=y
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
# CONFIG_PA8X00 is not set
CONFIG_PA11=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_SMP is not set
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=999999
# CONFIG_COMPACTION is not set
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CLEANCACHE is not set
# CONFIG_HPUX is not set

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
# CONFIG_HPPB is not set
# CONFIG_IOMMU_CCIO is not set
CONFIG_GSC_LASI=y
# CONFIG_GSC_WAX is not set
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
# CONFIG_ISA is not set
# CONFIG_PCI is not set
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCCARD is not set

#
# PA-RISC specific drivers
#
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_PDC_CHASSIS is not set
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_XFRM=y
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=y
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=y
# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
# CONFIG_IPV6_PRIVACY is not set
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
CONFIG_INET6_XFRM_MODE_TRANSPORT=y
CONFIG_INET6_XFRM_MODE_TUNNEL=y
CONFIG_INET6_XFRM_MODE_BEET=y
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=y
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
# CONFIG_NETFILTER_ADVANCED is not set

#
# Core Netfilter Configuration
#
# CONFIG_NETFILTER_NETLINK_LOG is not set
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NETFILTER_XTABLES is not set
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV4 is not set
# CONFIG_IP_NF_IPTABLES is not set

#
# IPv6: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV6 is not set
# CONFIG_IP6_NF_IPTABLES is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_DNS_RESOLVER is not set
# CONFIG_BATMAN_ADV is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
# CONFIG_DEVTMPFS_MOUNT is not set
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
CONFIG_PARPORT=y
# CONFIG_PARPORT_PC is not set
CONFIG_PARPORT_GSC=y
# CONFIG_PARPORT_AX88796 is not set
# CONFIG_PARPORT_1284 is not set
CONFIG_PARPORT_NOT_PC=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=4
CONFIG_BLK_DEV_CRYPTOLOOP=y

#
# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
#
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=6144
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_SENSORS_LIS3LV02D is not set
CONFIG_MISC_DEVICES=y
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set

#
# Texas Instruments shared transport line discipline
#

#
# Altera FPGA firmware download module
#
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
CONFIG_CHR_DEV_SG=m
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_LE_ON_BE=y
# CONFIG_SCSI_ZALON is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
# CONFIG_ATA is not set
CONFIG_MD=y
# CONFIG_BLK_DEV_MD is not set
# CONFIG_BLK_DEV_DM is not set
# CONFIG_TARGET_CORE is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_MII is not set
# CONFIG_MACVLAN is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set

#
# CAIF transport drivers
#
CONFIG_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CIRRUS is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
CONFIG_NET_TULIP=y
CONFIG_DE4X5=m
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_HP is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_FDDI is not set
# CONFIG_PHYLIB is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_HIL_OLD is not set
CONFIG_KEYBOARD_HIL=y
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
# CONFIG_MOUSE_PS2 is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_PARKBD is not set
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=y
CONFIG_HIL_MLC=y
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=64
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVKMEM is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_NR_UARTS=8
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MUX is not set
CONFIG_PDC_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_PRINTER is not set
# CONFIG_PPDEV is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
CONFIG_RAW_DRIVER=y
CONFIG_MAX_RAW_DEVS=256
# CONFIG_TCG_TPM is not set
# CONFIG_RAMOOPS is not set
# CONFIG_I2C is not set
# CONFIG_SPI is not set

#
# PPS support
#
# CONFIG_PPS is not set

#
# PPS generators support
#

#
# PTP clock support
#

#
# Enable Device Drivers -> PPS to see the PTP clock options.
#
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_WMT_GE_ROPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
CONFIG_FB_STI=y
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=128
CONFIG_DUMMY_CONSOLE_ROWS=48
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_STI_CONSOLE=y
CONFIG_FONTS=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_FONT_6x11 is not set
# CONFIG_FONT_7x14 is not set
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
# CONFIG_FONT_MINI_4x6 is not set
# CONFIG_FONT_SUN8x16 is not set
# CONFIG_FONT_SUN12x22 is not set
# CONFIG_FONT_10x18 is not set
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_LOGO_PARISC_CLUT224=y
CONFIG_SOUND=y
CONFIG_SOUND_OSS_CORE=y
# CONFIG_SOUND_OSS_CORE_PRECLAIM is not set
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_SEQUENCER=y
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
# CONFIG_SND_PCM_OSS_PLUGINS is not set
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_DYNAMIC_MINORS=y
# CONFIG_SND_SUPPORT_OLD_API is not set
# CONFIG_SND_VERBOSE_PROCFS is not set
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
# CONFIG_SND_DRIVERS is not set
CONFIG_SND_GSC=y
CONFIG_SND_HARMONY=y
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
CONFIG_HIDRAW=y
# CONFIG_HID_PID is not set

#
# Special HID drivers
#
# CONFIG_USB_SUPPORT is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_BALLOON is not set
# CONFIG_VIRTIO_MMIO is not set
# CONFIG_STAGING is not set

#
# Hardware Spinlock drivers
#
# CONFIG_IOMMU_SUPPORT is not set
# CONFIG_VIRT_DRIVERS is not set
# CONFIG_PM_DEVFREQ is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
# CONFIG_EXT3_FS_XATTR is not set
# CONFIG_EXT4_FS is not set
CONFIG_JBD=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_FS_POSIX_ACL is not set
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NETWORK_FILESYSTEMS=y
# CONFIG_NFS_FS is not set
# CONFIG_NFSD is not set
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_HARDLOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
# CONFIG_SYSCTL_SYSCALL_CHECK is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_SAMPLES is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_DEBUG_RODATA is not set
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_ENCRYPTED_KEYS is not set
CONFIG_KEYS_DEBUG_PROC_KEYS=y
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=y
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
CONFIG_CRYPTO_HW=y
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y
CONFIG_GENERIC_ATOMIC64=y
# CONFIG_AVERAGE is not set
# CONFIG_CORDIC is not set

--nextPart4974704.aTbWWglFck--

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From - Thu Nov 08 21:07:50 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot error using 3.2.1: swapper (pid 1): Illegal instruction
 (code 8)
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On Tue, 2012-01-17 at 11:41 +0100, Rolf Eike Beer wrote:
> Machine is an Apollo 705, previous kernel version was 2.6.28. Any hints 
> appreciated. Config attached.

Best guess is that your init binary is incompatible with the hardware
architecture.  It has to be compiled for PA7000 to work on an Apollo
system.

James


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From - Thu Nov 08 21:07:50 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot error using 3.2.1: swapper (pid 1): Illegal instruction
 (code 8)
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> On Tue, 2012-01-17 at 11:41 +0100, Rolf Eike Beer wrote:
>> Machine is an Apollo 705, previous kernel version was 2.6.28. Any hints
>> appreciated. Config attached.
>
> Best guess is that your init binary is incompatible with the hardware
> architecture.  It has to be compiled for PA7000 to work on an Apollo
> system.

Using the same init with kernel 2.6.28 works fine.

Eike
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From: James Bottomley <jbottomley@parallels.com>
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Subject: Fix compile breakage with kref.h
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From - Thu Nov 08 21:07:50 2018
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Subject: Re: Fix compile breakage with kref.h
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On Tue, Jan 17, 2012 at 09:14:05PM +0000, James Bottomley wrote:
> This set of build failures just started appearing on parisc:
> 
> In file included from drivers/input/serio/serio_raw.c:12:
> include/linux/kref.h: In function 'kref_get':
> include/linux/kref.h:40: error: 'TAINT_WARN' undeclared (first use in this function)
> include/linux/kref.h:40: error: (Each undeclared identifier is reported only once
> include/linux/kref.h:40: error: for each function it appears in.)
> include/linux/kref.h: In function 'kref_sub':
> include/linux/kref.h:65: error: 'TAINT_WARN' undeclared (first use in this function)
> 
> It happens because TAINT_WARN is defined in kernel.h and this particular
> compile doesn't seem to include it (no idea why it's just
> manifesting ... probably some #include file untangling exposed it).  Fix
> by adding #include <linux/kernel.h> to linux/kref.h

Does adding <linux/bug.h> fix it instead?  We are using WARN_ON() here.
Hm, but that needs kernel.h as well, ugh, what a mess.

> Signed-off-by: James Bottomley <JBottomley@Parallels.com>

Acked-by: Greg Kroah-Hartman <gregkh@suse.de>

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From - Thu Nov 08 21:07:50 2018
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To: Greg Kroah-Hartman <greg@kroah.com>
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On Tue, Jan 17, 2012 at 4:26 PM, Greg Kroah-Hartman <greg@kroah.com> wr=
ote:
> On Tue, Jan 17, 2012 at 09:14:05PM +0000, James Bottomley wrote:
>> This set of build failures just started appearing on parisc:
>>
>> In file included from drivers/input/serio/serio_raw.c:12:
>> include/linux/kref.h: In function 'kref_get':
>> include/linux/kref.h:40: error: 'TAINT_WARN' undeclared (first use i=
n this function)
>> include/linux/kref.h:40: error: (Each undeclared identifier is repor=
ted only once
>> include/linux/kref.h:40: error: for each function it appears in.)
>> include/linux/kref.h: In function 'kref_sub':
>> include/linux/kref.h:65: error: 'TAINT_WARN' undeclared (first use i=
n this function)
>>
>> It happens because TAINT_WARN is defined in kernel.h and this partic=
ular
>> compile doesn't seem to include it (no idea why it's just
>> manifesting ... probably some #include file untangling exposed it). =
=A0Fix
>> by adding #include <linux/kernel.h> to linux/kref.h
>
> Does adding <linux/bug.h> fix it instead? =A0We are using WARN_ON() h=
ere.
> Hm, but that needs kernel.h as well, ugh, what a mess.

I've got some work done already towards cleaning this up; aiming for
getting it done and in linux-next for the 3.4 cycle.

https://lkml.org/lkml/2012/1/4/455

Paul.
---

>
>> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
>
> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
>
> --
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From - Thu Nov 08 21:07:50 2018
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From: Masanari Iida <standby24x7@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] [trivial] parisc : Fix typo in eisa_enumerator.c
Date: Sun, 22 Jan 2012 21:05:48 +0900
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To: linux-parisc@vger.kernel.org
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Correct spelling "confgiuration" to "configuration" in
drivers/parisc/eisa_enumerator.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
---
 drivers/parisc/eisa_enumerator.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/parisc/eisa_enumerator.c b/drivers/parisc/eisa_enumerator.c
index caa1531..a656d9e 100644
--- a/drivers/parisc/eisa_enumerator.c
+++ b/drivers/parisc/eisa_enumerator.c
@@ -357,7 +357,7 @@ static int parse_slot_config(int slot,
 		}
 		if (flags & HPEE_FUNCTION_INFO_CFG_FREE_FORM) {
 			/* I have no idea how to handle this */
-			printk("function %d have free-form confgiuration, skipping ",
+			printk("function %d have free-form configuration, skipping ",
 				num_func);
 			pos = p0 + function_len;
 			continue;
-- 
1.7.6.5

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From: Randy Dunlap <rdunlap@xenotime.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] [trivial] parisc : Fix typo in eisa_enumerator.c
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On 01/22/2012 04:05 AM, Masanari Iida wrote:
> Correct spelling "confgiuration" to "configuration" in
> drivers/parisc/eisa_enumerator.c

Correct trivial email address.

> 
> Signed-off-by: Masanari Iida <standby24x7@gmail.com>
> ---
>  drivers/parisc/eisa_enumerator.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/parisc/eisa_enumerator.c b/drivers/parisc/eisa_enumerator.c
> index caa1531..a656d9e 100644
> --- a/drivers/parisc/eisa_enumerator.c
> +++ b/drivers/parisc/eisa_enumerator.c
> @@ -357,7 +357,7 @@ static int parse_slot_config(int slot,
>  		}
>  		if (flags & HPEE_FUNCTION_INFO_CFG_FREE_FORM) {
>  			/* I have no idea how to handle this */
> -			printk("function %d have free-form confgiuration, skipping ",
> +			printk("function %d have free-form configuration, skipping ",

			                    has

>  				num_func);
>  			pos = p0 + function_len;
>  			continue;


-- 
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
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Newsgroups: gmane.linux.kernel,gmane.linux.kernel.pci,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH 07/13] PCI, parisc: Register busn_res for root buses
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Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    2 ++
 drivers/parisc/lba_pci.c |    3 +++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 7ff10c1..3f2e203 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -1014,7 +1014,9 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(bus, dino_current_bus, 255);
 	bus->subordinate = pci_scan_child_bus(bus);
+	pci_bus_update_busn_res_end(bus, bus->subordinate);
 
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index d5f3d75..b58bf8b 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1531,6 +1531,9 @@ lba_driver_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(lba_bus, lba_dev->hba.bus_num.start,
+				lba_dev->hba.bus_num.end);
+
 	lba_bus->subordinate = pci_scan_child_bus(lba_bus);
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
-- 
1.7.7


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--f46d04182626291f2d04b7984c05
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I'm trying to test some PCI changes on a c3700, but recent kernels
don't seem to work at all.  74ea15d909b311 (current upstream) and v3.2
both fail as shown below.  I'm using c3000_defconfig (attached for
74ea15d909b311).  Should I expect this to work?

v3.0 gets farther, but then gets into a loop of
__find_get_block_slow() messages like this:

        ...
        md: autorun ...
        md: ... autorun DONE.
        __find_get_block_slow() failed. block=0, b_blocknr=1
        b_state=0x00000020, b_size=4096
        device blocksize: 4096
        __find_get_block_slow() failed. block=0, b_blocknr=1
        ...

Linux version 3.3.0-rc1+ (helgaas@c3700) (gcc version 4.3.2 (Debian 4.3.2-1.1)
 ) #20 Fri Jan 27 19:52:08 MST 2012
unwind_init: start = 0x1054f000, end = 0x105882c0, entries = 14636
WARNING: Out of order unwind entry! 10550250 and 10550260
WARNING: Out of order unwind entry! 10550260 and 10550270
WARNING: Out of order unwind entry! 10550c40 and 10550c50
WARNING: Out of order unwind entry! 10550c50 and 10550c60
WARNING: Out of order unwind entry! 10550c60 and 10550c70
WARNING: Out of order unwind entry! 10550c70 and 10550c80
WARNING: Out of order unwind entry! 10550c90 and 10550ca0
WARNING: Out of order unwind entry! 10550ca0 and 10550cb0
WARNING: Out of order unwind entry! 10550cb0 and 10550cc0
WARNING: Out of order unwind entry! 10550cc0 and 10550cd0
WARNING: Out of order unwind entry! 10550cd0 and 10550ce0
WARNING: Out of order unwind entry! 10550ce0 and 10550cf0
WARNING: Out of order unwind entry! 10550cf0 and 10550d00
WARNING: Out of order unwind entry! 10550d00 and 10550d10
WARNING: Out of order unwind entry! 10550d10 and 10550d20
WARNING: Out of order unwind entry! 10550d20 and 10550d30
WARNING: Out of order unwind entry! 10550d30 and 10550d40
WARNING: Out of order unwind entry! 10550d40 and 10550d50
FP[0] enabled: Rev 1 Model 19
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005dc0 00000481 00000000 00000002 782636b2 100000f0 00000008 000000b2 00
0000b2
vers  00000203
CPUID vers 19 rev 7 (0x00000267)
capabilities 0x7
model 9000/785/C3700
Total Memory: 1024 MB
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
swapper (pid 0): Protection id trap (code 7)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110 Not tainted
r00-03  0004ff0e 10100000 10286408 1058c548
r04-07  000186a0 0001869f 1058c5d0 00000000
r08-11  ffffffff 00000000 0000000a 00000000
r12-15  ffffffff 00000011 00000020 105aad90
r16-19  10605000 00000025 1060503c 00000000
r20-23  00040000 0000006c 00000001 00000000
r24-27  00040000 000186a0 00040000 10590000
r28-31  00018000 ffffffff 1058c640 10286028
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101006dc 101006e0
 IIR: 43ffff40    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 1058c000 CR31: 7fffffff
 ORIG_R28: 00000000
 IAOQ[0]: lstrnlen_user+0x1e0/0x146c
 IAOQ[1]: lstrnlen_user+0x1e4/0x146c
 RP(r2): number+0x370/0x390
Backtrace:
 [<10286408>] number+0x370/0x390

Backtrace:
 [<10110b0c>] die_if_kernel+0x10c/0x1b8

---[ end trace 139ce121c98e96c9 ]---
Kernel panic - not syncing: Attempted to kill the idle task!

--f46d04182626291f2d04b7984c05
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Bjorn Helgaas wrote:
> I'm trying to test some PCI changes on a c3700, but recent kernels
> don't seem to work at all.  74ea15d909b311 (current upstream) and v3.2
> both fail as shown below.  I'm using c3000_defconfig (attached for
> 74ea15d909b311).  Should I expect this to work?

I don't know about 3.3x, but my C3600 runs using 3.2.1. Which binutils did you 
use for building? IIRC there is a bunch of bugs in different versions.

Eike
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On Sat, 2012-01-28 at 08:30 -0700, Bjorn Helgaas wrote:
> I'm trying to test some PCI changes on a c3700, but recent kernels
> don't seem to work at all.  74ea15d909b311 (current upstream) and v3.2
> both fail as shown below.  I'm using c3000_defconfig (attached for
> 74ea15d909b311).  Should I expect this to work?

It does work for me but using a fairly custom config on a pa8800 system
(based on a debian .config):

ion:~# cat /proc/version 
Linux version 3.3.0-rc1+ (jejb@ion) (gcc version 4.2.4 (Debian 4.2.4-6))
#6 SMP Sat Jan 28 09:28:11 PST 2012

> v3.0 gets farther, but then gets into a loop of
> __find_get_block_slow() messages like this:
> 
>         ...
>         md: autorun ...
>         md: ... autorun DONE.
>         __find_get_block_slow() failed. block=0, b_blocknr=1
>         b_state=0x00000020, b_size=4096
>         device blocksize: 4096
>         __find_get_block_slow() failed. block=0, b_blocknr=1
>         ...

definitely never seen this ... and it's a bit unlikely to be a PA arch
problem, but I don't use md, so I can't really say anything definitive.

> Linux version 3.3.0-rc1+ (helgaas@c3700) (gcc version 4.3.2 (Debian 4.3.2-1.1)
>  ) #20 Fri Jan 27 19:52:08 MST 2012
> unwind_init: start = 0x1054f000, end = 0x105882c0, entries = 14636
> WARNING: Out of order unwind entry! 10550250 and 10550260
> WARNING: Out of order unwind entry! 10550260 and 10550270
> WARNING: Out of order unwind entry! 10550c40 and 10550c50
> WARNING: Out of order unwind entry! 10550c50 and 10550c60
> WARNING: Out of order unwind entry! 10550c60 and 10550c70
> WARNING: Out of order unwind entry! 10550c70 and 10550c80
> WARNING: Out of order unwind entry! 10550c90 and 10550ca0
> WARNING: Out of order unwind entry! 10550ca0 and 10550cb0
> WARNING: Out of order unwind entry! 10550cb0 and 10550cc0
> WARNING: Out of order unwind entry! 10550cc0 and 10550cd0
> WARNING: Out of order unwind entry! 10550cd0 and 10550ce0
> WARNING: Out of order unwind entry! 10550ce0 and 10550cf0
> WARNING: Out of order unwind entry! 10550cf0 and 10550d00
> WARNING: Out of order unwind entry! 10550d00 and 10550d10
> WARNING: Out of order unwind entry! 10550d10 and 10550d20
> WARNING: Out of order unwind entry! 10550d20 and 10550d30
> WARNING: Out of order unwind entry! 10550d30 and 10550d40
> WARNING: Out of order unwind entry! 10550d40 and 10550d50
> FP[0] enabled: Rev 1 Model 19
> The 32-bit Kernel has started...
> bootconsole [ttyB0] enabled
> Initialized PDC Console for debugging.
> Determining PDC firmware type: System Map.
> model 00005dc0 00000481 00000000 00000002 782636b2 100000f0 00000008 000000b2 00
> 0000b2
> vers  00000203
> CPUID vers 19 rev 7 (0x00000267)
> capabilities 0x7
> model 9000/785/C3700
> Total Memory: 1024 MB
>       _______________________________
>      < Your System ate a SPARC! Gah! >
>       -------------------------------
>              \   ^__^
>                  (__)\       )\/\
>                   U  ||----w |
>                      ||     ||
> swapper (pid 0): Protection id trap (code 7)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001110 Not tainted
> r00-03  0004ff0e 10100000 10286408 1058c548
> r04-07  000186a0 0001869f 1058c5d0 00000000
> r08-11  ffffffff 00000000 0000000a 00000000
> r12-15  ffffffff 00000011 00000020 105aad90
> r16-19  10605000 00000025 1060503c 00000000
> r20-23  00040000 0000006c 00000001 00000000
> r24-27  00040000 000186a0 00040000 10590000
> r28-31  00018000 ffffffff 1058c640 10286028
> sr00-03  00000000 00000000 00000000 00000000
> sr04-07  00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 101006dc 101006e0
>  IIR: 43ffff40    ISR: 00000000  IOR: 00000000
>  CPU:        0   CR30: 1058c000 CR31: 7fffffff
>  ORIG_R28: 00000000
>  IAOQ[0]: lstrnlen_user+0x1e0/0x146c
>  IAOQ[1]: lstrnlen_user+0x1e4/0x146c
>  RP(r2): number+0x370/0x390
> Backtrace:
>  [<10286408>] number+0x370/0x390

pass on this .. number should be in lib/vsprintf.c ... but I can't see
how that would get into lstrnlen_user, so this looks like some type of
compile problem.

What it should be trying to print out is the initrd information (if you
have one) or the percpu information if you don't.

James


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From - Thu Nov 08 21:07:51 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.network
Subject: Hang deconfiguring network interface (in shutdown) on 3.3-rc1
Date: Sat, 28 Jan 2012 13:56:05 -0600
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To: Parisc List <linux-parisc@vger.kernel.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/4116>

It looks like it might be a tg3 or RCU issue.  When I shut down my
parisc SMP 4 way system, I get an immediate hang here

Deconfiguring network interfaces...Internet Systems Consortium DHCP
Client 4.1.1-P1
Copyright 2004-2010 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/eth0/00:30:6e:4b:15:59
Sending on   LPF/eth0/00:30:6e:4b:15:59
Sending on   Socket/fallback
DHCPRELEASE on eth0 to 153.66.140.171 port 67

Followed some seconds later by

[ 5714.268000] INFO: rcu_sched detected stall on CPU 3 (t=15000 jiffies)
[ 5714.268000] Backtrace:
[ 5714.268000]  [<000000004011fdd4>] show_stack+0x14/0x20
[ 5714.268000]  [<000000004011fdf8>] dump_stack+0x18/0x28
[ 5714.268000]  [<00000000401c1fec>] __rcu_pending+0xcc/0x5c8
[ 5714.276000]  [<00000000401c2d60>] rcu_check_callbacks+0x80/0xf8
[ 5714.276000] INFO: rcu_sched detected stalls on CPUs/tasks: { 3}
(detected by 2, t=15002 jiffies)
[ 5714.276000] Backtrace:
[ 5714.276000]  [<000000004011fdd4>] show_stack+0x14/0x20
[ 5714.276000]  [<000000004011fdf8>] dump_stack+0x18/0x28
[ 5714.276000]  [<00000000401c2484>] __rcu_pending+0x564/0x5c8
[ 5714.276000]  [<00000000401c2d60>] rcu_check_callbacks+0x80/0xf8
[ 5714.276000]  [<0000000040155dc8>] update_process_times+0x68/0xd8
[ 5714.276000]  [<0000000040121378>] timer_interrupt+0x1c0/0x220
[ 5714.276000]  [<00000000401b9cfc>] handle_irq_event_percpu+0xa4/0x2a0
[ 5714.276000]  [<00000000401be58c>] handle_percpu_irq+0x9c/0xd0
[ 5714.276000]  [<00000000401b9500>] generic_handle_irq+0x48/0x60
[ 5714.276000]  [<0000000040121a50>] do_cpu_irq_mask+0x1b8/0x2a8
[ 5714.276000]  [<0000000040105074>] intr_return+0x0/0x4
[ 5714.276000]  [<0000000040105074>] intr_return+0x0/0x4
[ 5714.276000]  [<00000000401296dc>] cpu_idle+0x74/0x80
[ 5714.276000]  [<000000004078e1d0>] smp_callin+0x150/0x1a0
[ 5714.276000] 
[ 5714.348000]  [<0000000040155dc8>] update_process_times+0x68/0xd8
[ 5714.348000]  [<0000000040121378>] timer_interrupt+0x1c0/0x220
[ 5714.356000]  [<00000000401b9cfc>] handle_irq_event_percpu+0xa4/0x2a0
[ 5714.364000]  [<00000000401be58c>] handle_percpu_irq+0x9c/0xd0
[ 5714.364000]  [<00000000401b9500>] generic_handle_irq+0x48/0x60
[ 5714.372000]  [<0000000040121a50>] do_cpu_irq_mask+0x1b8/0x2a8
[ 5714.372000]  [<0000000040105074>] intr_return+0x0/0x4
[ 5714.380000] 

This didn't happen in 3.2

Sysrq still works and sysrq-T shows ifconfig stuck:


[ 6030.376000] ifconfig        R  running task        0  1470   1452
0x00000014
[ 6030.376000] Backtrace:
[ 6030.376000]  [<000000004017c6c8>] scheduler_tick+0x180/0x1a0
[ 6030.376000]  [<0000000040155e1c>] update_process_times+0xbc/0xd8
[ 6030.376000]  [<0000000040121378>] timer_interrupt+0x1c0/0x220
[ 6030.376000]  [<00000000401b9d54>] handle_irq_event_percpu+0xfc/0x2a0
[ 6030.376000]  [<0000000040105074>] intr_return+0x0/0x4
[ 6030.376000]  [<000000004011c638>] _raw_spin_lock_bh+0x30/0x40
[ 6030.376000]  [<000000004011c620>] _raw_spin_lock_bh+0x18/0x40
[ 6030.376000]  [<000000001c6e3a64>] tg3_chip_reset+0x9c4/0x1328 [tg3]
[ 6030.376000]  [<000000001c6eca9c>] tg3_halt+0xdc/0x1d8 [tg3]
[ 6030.376000]  [<000000001c6f9964>] tg3_close+0x194/0x3f0 [tg3]
[ 6030.376000]  [<0000000040411518>] __dev_close_many+0x100/0x178
[ 6030.376000]  [<0000000040415130>] __dev_close+0x30/0x50
[ 6030.376000]  [<000000004040ebf8>] __dev_change_flags+0xb0/0x1d0
[ 6030.376000]  [<00000000404113b0>] dev_change_flags+0x28/0x90
[ 6030.376000]  [<0000000040488d70>] devinet_ioctl+0x748/0x898
[ 6030.376000]  [<000000004048a5f4>] inet_ioctl+0x204/0x228

James


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From - Thu Nov 08 21:07:51 2018
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From: Kevin Cernekee <cernekee@gmail.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.uclinux.microblaze,gmane.linux.ports.openrisc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.pci
Subject: Re: [PATCH-RFC 06/10] mips: switch to GENERIC_PCI_IOMAP
Date: Sat, 28 Jan 2012 14:38:10 -0800
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        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Russell King <linux@arm.linux.org.uk>,
        Mikael Starvik <starvik@axis.com>,
        Jesper Nilsson <jesper.nilsson@axis.com>,
        Richard Kuo <rkuo@codeaurora.org>,
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        Fenghua Yu <fenghua.yu@intel.com>,
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        Jonas Bonn <jonas@southpole.se>,
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To: Ralf Baechle <ralf@linux-mips.org>,
        "Michael S. Tsirkin" <mst@redhat.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/33420>

On Thu, Nov 24, 2011 at 12:18 PM, Michael S. Tsirkin <mst@redhat.com> w=
rote:
> mips copied pci_iomap from generic code, probably to avoid
> pulling the rest of iomap.c in. =C2=A0Since that's in
> a separate file now, we can reuse the common implementation.

[snip]

> - =C2=A0 =C2=A0 =C2=A0 if (flags & IORESOURCE_IO)
> - =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 return ioport_map_=
pci(dev, start, len);

While investigating a new warning on the 3.3-rc1 MIPS build (unused
static function ioport_map_pci()), I noticed that this patch has shown
up in Linus' tree as commit eab90291d35438bcebf7c3dc85be66d0f24e3002.

I am not completely clear on the implications it has on mapping PCI I/O=
 regions:

Prior to this change, the MIPS version of pci_iomap() called a
MIPS-specific function, ioport_map_pci(), which tried to use the PCI
controller's io_map_base field to determine the base address of the
PCI I/O space.  It also had a fallback mechanism to deal with the case
where io_map_base is unset.

Now, in 3.3-rc1, the generic version of pci_iomap() is used instead.
This code just calls arch/mips/lib/iomap.c:ioport_map() on these
regions.  ioport_map() falls through to ioport_map_legacy(), which
always uses mips_io_port_base (not the PCI controller's io_map_base)
as the base address.  But on MIPS, it is still permissible to use
different I/O port bases for PCI devices and for legacy (ISA?)
devices.

Is this new behavior desirable, or are there any supported platforms
on which adverse effects might be seen?

As for my part, I don't use PCI I/O regions at all - just memory
regions.  I'm more worried about making sure my tree builds with 0
warnings.

If we do want to move ahead with the switch to GENERIC_PCI_IOMAP now,
I have patches to scrap iomap-pci.c entirely and squash the unused
function warning.

If we still want to support the case where io_map_base !=3D
mips_io_port_base, maybe it would be better to revert commit eab90291
for 3.3.

Might also want to take a look at SH since it also appears to have an
orphaned ioport_map_pci() function.

What are your thoughts?



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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: c3700 boot failure (protection ID trap)
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On Sat, Jan 28, 2012 at 9:56 AM, Rolf Eike Beer <eike-kernel@sf-tec.de>=
 wrote:
> Bjorn Helgaas wrote:
>> I'm trying to test some PCI changes on a c3700, but recent kernels
>> don't seem to work at all. =A074ea15d909b311 (current upstream) and =
v3.2
>> both fail as shown below. =A0I'm using c3000_defconfig (attached for
>> 74ea15d909b311). =A0Should I expect this to work?
>
> I don't know about 3.3x, but my C3600 runs using 3.2.1. Which binutil=
s did you
> use for building? IIRC there is a bunch of bugs in different versions=
=2E

This is a Debian 5.0 box:

c3700:~# gcc -v
Using built-in specs.
Target: hppa-linux-gnu
Configured with: ../src/configure -v --with-pkgversion=3D'Debian
4.3.2-1.1' --with-bugurl=3Dfile:///usr/share/doc/gcc-4.3/README.Bugs
--enable-languages=3Dc,c++,fortran,objc,obj-c++ --prefix=3D/usr
--enable-shared --with-system-zlib --libexecdir=3D/usr/lib
--without-included-gettext --enable-threads=3Dposix --enable-nls
--with-gxx-include-dir=3D/usr/include/c++/4.3 --program-suffix=3D-4.3
--enable-clocale=3Dgnu --enable-libstdcxx-debug --enable-objc-gc
--enable-mpfr --disable-libssp --enable-checking=3Drelease
--build=3Dhppa-linux-gnu --host=3Dhppa-linux-gnu --target=3Dhppa-linux-=
gnu
Thread model: posix
gcc version 4.3.2 (Debian 4.3.2-1.1)
c3700:~# ld -v
GNU ld (GNU Binutils for Debian) 2.18.0.20080103
c3700:~# as -v
GNU assembler version 2.18.0 (hppa-linux-gnu) using BFD version (GNU
Binutils for Debian) 2.18.0.20080103
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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.network
Subject: Re: Hang deconfiguring network interface (in shutdown) on 3.3-rc1
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On Sat, Jan 28, 2012 at 01:56:05PM -0600, James Bottomley wrote:
> It looks like it might be a tg3 or RCU issue.  When I shut down my
> parisc SMP 4 way system, I get an immediate hang here
> 
> Deconfiguring network interfaces...Internet Systems Consortium DHCP
> Client 4.1.1-P1
> Copyright 2004-2010 Internet Systems Consortium.
> All rights reserved.
> For info, please visit https://www.isc.org/software/dhcp/
> 
> Listening on LPF/eth0/00:30:6e:4b:15:59
> Sending on   LPF/eth0/00:30:6e:4b:15:59
> Sending on   Socket/fallback
> DHCPRELEASE on eth0 to 153.66.140.171 port 67
> 
> Followed some seconds later by
> 
> [ 5714.268000] INFO: rcu_sched detected stall on CPU 3 (t=15000 jiffies)
> [ 5714.268000] Backtrace:
> [ 5714.268000]  [<000000004011fdd4>] show_stack+0x14/0x20
> [ 5714.268000]  [<000000004011fdf8>] dump_stack+0x18/0x28
> [ 5714.268000]  [<00000000401c1fec>] __rcu_pending+0xcc/0x5c8
> [ 5714.276000]  [<00000000401c2d60>] rcu_check_callbacks+0x80/0xf8
> [ 5714.276000] INFO: rcu_sched detected stalls on CPUs/tasks: { 3}
> (detected by 2, t=15002 jiffies)
> [ 5714.276000] Backtrace:
> [ 5714.276000]  [<000000004011fdd4>] show_stack+0x14/0x20
> [ 5714.276000]  [<000000004011fdf8>] dump_stack+0x18/0x28
> [ 5714.276000]  [<00000000401c2484>] __rcu_pending+0x564/0x5c8
> [ 5714.276000]  [<00000000401c2d60>] rcu_check_callbacks+0x80/0xf8
> [ 5714.276000]  [<0000000040155dc8>] update_process_times+0x68/0xd8
> [ 5714.276000]  [<0000000040121378>] timer_interrupt+0x1c0/0x220
> [ 5714.276000]  [<00000000401b9cfc>] handle_irq_event_percpu+0xa4/0x2a0
> [ 5714.276000]  [<00000000401be58c>] handle_percpu_irq+0x9c/0xd0
> [ 5714.276000]  [<00000000401b9500>] generic_handle_irq+0x48/0x60
> [ 5714.276000]  [<0000000040121a50>] do_cpu_irq_mask+0x1b8/0x2a8
> [ 5714.276000]  [<0000000040105074>] intr_return+0x0/0x4
> [ 5714.276000]  [<0000000040105074>] intr_return+0x0/0x4
> [ 5714.276000]  [<00000000401296dc>] cpu_idle+0x74/0x80
> [ 5714.276000]  [<000000004078e1d0>] smp_callin+0x150/0x1a0
> [ 5714.276000] 
> [ 5714.348000]  [<0000000040155dc8>] update_process_times+0x68/0xd8
> [ 5714.348000]  [<0000000040121378>] timer_interrupt+0x1c0/0x220
> [ 5714.356000]  [<00000000401b9cfc>] handle_irq_event_percpu+0xa4/0x2a0
> [ 5714.364000]  [<00000000401be58c>] handle_percpu_irq+0x9c/0xd0
> [ 5714.364000]  [<00000000401b9500>] generic_handle_irq+0x48/0x60
> [ 5714.372000]  [<0000000040121a50>] do_cpu_irq_mask+0x1b8/0x2a8
> [ 5714.372000]  [<0000000040105074>] intr_return+0x0/0x4
> [ 5714.380000] 
> 
> This didn't happen in 3.2
> 
> Sysrq still works and sysrq-T shows ifconfig stuck:
> 
> 
> [ 6030.376000] ifconfig        R  running task        0  1470   1452
> 0x00000014
> [ 6030.376000] Backtrace:
> [ 6030.376000]  [<000000004017c6c8>] scheduler_tick+0x180/0x1a0
> [ 6030.376000]  [<0000000040155e1c>] update_process_times+0xbc/0xd8
> [ 6030.376000]  [<0000000040121378>] timer_interrupt+0x1c0/0x220
> [ 6030.376000]  [<00000000401b9d54>] handle_irq_event_percpu+0xfc/0x2a0
> [ 6030.376000]  [<0000000040105074>] intr_return+0x0/0x4
> [ 6030.376000]  [<000000004011c638>] _raw_spin_lock_bh+0x30/0x40
> [ 6030.376000]  [<000000004011c620>] _raw_spin_lock_bh+0x18/0x40
> [ 6030.376000]  [<000000001c6e3a64>] tg3_chip_reset+0x9c4/0x1328 [tg3]
> [ 6030.376000]  [<000000001c6eca9c>] tg3_halt+0xdc/0x1d8 [tg3]
> [ 6030.376000]  [<000000001c6f9964>] tg3_close+0x194/0x3f0 [tg3]
> [ 6030.376000]  [<0000000040411518>] __dev_close_many+0x100/0x178
> [ 6030.376000]  [<0000000040415130>] __dev_close+0x30/0x50
> [ 6030.376000]  [<000000004040ebf8>] __dev_change_flags+0xb0/0x1d0
> [ 6030.376000]  [<00000000404113b0>] dev_change_flags+0x28/0x90
> [ 6030.376000]  [<0000000040488d70>] devinet_ioctl+0x748/0x898
> [ 6030.376000]  [<000000004048a5f4>] inet_ioctl+0x204/0x228

If ifconfig is spinning in the kernel with preemption disabled, the RCU
CPU stall warning is expected behavior.  That said, judging from the
stack traces ifconfig was not running on CPU 3.  But I have seen similar
stack traces when someone forgets to drop a lock.

Do multiple sysrq-T commmands get the same picture, that ifconfig
is spinning on a lock in tg3_chip_reset()?  If so, does this reproduce
with lockdep enabled?

							Thanx, Paul


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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Happy New Year PARISC (take 2)
Date: Sun, 29 Jan 2012 16:45:43 -0500
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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Here is take take 2.  It's against linux-stable v3.2.2.  I also have a  
very similar
version against v3.1.10.

This one implements clear_user_highpage and copy_user_highpage.  I
revamped the patch to make it trivial to test the tmpalias and kmap  
versions.
At the moment, it is setup for kmap.

I tested the tmpalias version for a couple of weeks.  I now have more  
than
a week of testing with the latest kmap version.  The general stability  
of the
kmap version is good (i.e., no random segmentation faults).  Of  
course, I
have rebuilt most of userspace with binutils 2.22 and GCC 4.6 to avoid
the non equivalent alias bug present in earlier versions of binutils.

My current impression is the kmap version is better.  With the tmpalias
version, I saw the occasional hpmc in the GCC libgomp testsuite.  I
haven't had one with the kmap version so far.

I believe both versions fix the minifail bug and some thread related  
bugs
seen in the perl, python and git testsuites.  However, there are still  
more
thread related bugs to fix.

The minifail bug is fixed by the TLB purge added to ptep_set_wrprotect,
and flushing the `from' page in copy_user_page (kmap version).  The
tmpalias version doesn't need this flush, but the `to' page needs to be
flushed.  So, both versions have about the same flush requirements.

This version fixes the math emulation bug that I reported, but I have
another one that I haven't tracked down.

It would be great if someone else could test the change on something  
other
than a rp3440.  The cache issues are very subtle.  If the results are  
positive,
I will break up the patch and formally submit it.

Dave
--
John David Anglin	dave.anglin@bell.net



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diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 2388bdb..7839285 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -8,6 +8,29 @@
 #include <asm/atomic.h>
 #include <asm/errno.h>
 
+/* The following has to match the LWS code in syscall.S.  We have
+   sixteen four-word locks. */
+
+static inline void
+_futex_spin_lock_irqsave (u32 __user *uaddr, unsigned long int *flags)
+{
+	extern u32 lws_lock_start[];
+	long index = ((long)uaddr & 0xf0) >> 2;
+	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
+	local_irq_save(*flags);
+	arch_spin_lock(s);
+}
+
+static inline void
+_futex_spin_unlock_irqrestore (u32 __user *uaddr, unsigned long int *flags)
+{
+	extern u32 lws_lock_start[];
+	long index = ((long)uaddr & 0xf0) >> 2;
+	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
+	arch_spin_unlock(s);
+	local_irq_restore(*flags);
+}
+
 static inline int
 futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 {
@@ -26,7 +49,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_disable();
 
-	_atomic_spin_lock_irqsave(uaddr, flags);
+	_futex_spin_lock_irqsave(uaddr, &flags);
 
 	switch (op) {
 	case FUTEX_OP_SET:
@@ -71,7 +94,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 		ret = -ENOSYS;
 	}
 
-	_atomic_spin_unlock_irqrestore(uaddr, flags);
+	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
 	pagefault_enable();
 
@@ -113,7 +136,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	 * address. This should scale to a couple of CPUs.
 	 */
 
-	_atomic_spin_lock_irqsave(uaddr, flags);
+	_futex_spin_lock_irqsave(uaddr, &flags);
 
 	ret = get_user(val, uaddr);
 
@@ -122,7 +145,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 
 	*uval = val;
 
-	_atomic_spin_unlock_irqrestore(uaddr, flags);
+	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
 	return ret;
 }
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index a84cc1f..14b2a96 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -22,14 +22,25 @@
 #include <asm/cache.h>
 
 #define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define copy_page(to,from)      copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
+void copy_page_asm(void *to, void *from);
+void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+
+// #define CONFIG_PARISC_TMPALIAS
+
+#ifdef CONFIG_PARISC_TMPALIAS
+void clear_user_highpage(struct page *page, unsigned long vaddr);
+#define clear_user_highpage clear_user_highpage
+struct vm_area_struct;
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma);
+#define __HAVE_ARCH_COPY_USER_HIGHPAGE
+#endif
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 22dadeb..891b369 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -40,7 +40,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm,addr,ptep, pteval)                        \
+        do{                                                     \
+                set_pte(ptep,pteval);                           \
+                purge_tlb_entries(mm,addr);                     \
+        } while(0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -460,10 +467,13 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #ifdef CONFIG_SMP
 	unsigned long new, old;
 
+	/* ??? This might be racy because the page table updates in
+	   entry.S don't use the same lock.  */
 	do {
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index dcd5510..5df1597 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -141,6 +141,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -230,6 +231,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 83335f3..fb752dc 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -134,7 +134,7 @@ parisc_cache_init(void)
 	if (pdc_cache_info(&cache_info) < 0)
 		panic("parisc_cache_init: pdc_cache_info failed");
 
-#if 0
+#if 1
 	printk("ic_size %lx dc_size %lx it_size %lx\n",
 		cache_info.ic_size,
 		cache_info.dc_size,
@@ -316,7 +316,7 @@ void flush_dcache_page(struct page *page)
 		flush_tlb_page(mpnt, addr);
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
+			if (old_addr && parisc_requires_coherency())
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
 			old_addr = addr;
 		}
@@ -331,17 +331,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -375,20 +364,9 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
 
-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
-
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
-{
-	unsigned long flags;
-
-	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start(flags);
-	pdtlb_kernel(page);
-	purge_tlb_end(flags);
-	clear_user_page_asm(page, vaddr);
-}
-EXPORT_SYMBOL(clear_user_page);
+extern void purge_kernel_dcache_page_asm(unsigned long);
+extern void clear_user_page_asm(void *, unsigned long);
+extern void copy_user_page_asm(void *, void *, unsigned long);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
@@ -401,11 +379,24 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
+void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
+{
+	memset(vto, 0, PAGE_SIZE);
+	if (!parisc_requires_coherency())
+		flush_kernel_dcache_page_asm(vto);
+}
+EXPORT_SYMBOL(clear_user_page);
+
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-		    struct page *pg)
+	struct page *pg)
 {
-	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
+	/* Copy using kernel mapping.  No coherency is needed
+	   (all in kmap/kunmap) on machines that don't support
+	   non-equivalent aliasing.  However, the `from' page
+	   needs to be flushed before it can be accessed through
+	   the kernel mapping. */
+	flush_dcache_page_asm(__pa(vfrom), vaddr);
+	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
 		flush_kernel_dcache_page_asm(vto);
 }
@@ -487,18 +478,90 @@ flush_user_icache_range(unsigned long start, unsigned long end)
 		flush_instruction_cache();
 }
 
+/* While useful for testing, this check has too much overhead for
+   general use.  Thus, it is better to fix inequivalent mappings
+   than whack the cache.  */
+#define DEBUG_PAGE_MAPPING 0
+
+static inline void check_page_mapping(struct page *page)
+{
+#if DEBUG_PAGE_MAPPING
+	struct address_space *mapping = page_mapping(page);
+	struct vm_area_struct *mpnt;
+	struct prio_tree_iter iter;
+	unsigned long offset;
+	unsigned long addr, old_addr = 0;
+	pgoff_t pgoff;
+
+	if (!mapping || !mapping_mapped(mapping))
+		return;
+
+	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+
+	/* Check that all mappings of a file are congruently mapped */
+
+	flush_dcache_mmap_lock(mapping);
+	vma_prio_tree_foreach(mpnt, &iter, &mapping->i_mmap, pgoff, pgoff) {
+		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
+		addr = mpnt->vm_start + offset;
+		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
+			if (old_addr) {
+				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
+			}
+			old_addr = addr;
+		}
+	}
+	flush_dcache_mmap_unlock(mapping);
+#endif
+}
+
+static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
+{
+	pte_t *ptep = NULL;
+
+        if (!pgd_none(*pgd)) {
+                pud_t *pud = pud_offset(pgd, addr);
+                if (!pud_none(*pud)) {
+                        pmd_t *pmd = pmd_offset(pud, addr);
+                        if (!pmd_none(*pmd)) {
+                                ptep = pte_offset_map(pmd, addr);
+                        }
+                }
+        }
+	return ptep;
+}
+
+/* While flushing by page is slightly less efficient, it allows detection
+   of pages without pte's and mappings with inequivalent aliases.  */
+
+#define FLUSH_CACHE_RANGE_BY_PAGE 0
 
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	int sr3;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
+	if ((end - start) < parisc_cache_flush_threshold
+	    && vma->vm_mm->context == mfsp(3)) {
+#if FLUSH_CACHE_RANGE_BY_PAGE
+		unsigned long addr;
+		pte_t *ptep;
+		pgd_t *pgd = vma->vm_mm->pgd;
+
+		for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+			ptep = get_ptep(pgd, addr);
+			if (!ptep) {
+				/* ??? Why don't we have a pte?  */
+				flush_cache_all();
+				return;
+			}
+			check_page_mapping(pte_page(*ptep));
+			flush_cache_page(vma, addr, pte_pfn(*ptep));
+		}
+#else
+		flush_user_dcache_range_asm(start,end);
+		flush_user_icache_range_asm(start,end);
+#endif
 	} else {
 		flush_cache_all();
 	}
@@ -513,3 +576,77 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
+
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	mtsp(mm->context,1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+}
+
+#ifdef CONFIG_PARISC_TMPALIAS
+
+void clear_user_highpage(struct page *page, unsigned long vaddr)
+{
+	void *vto;
+	unsigned long flags;
+
+	/* Clear using TMPALIAS region.  The page doesn't need to
+	   be flushed but the kernel mapping needs to be purged.  */
+
+	vto = kmap_atomic(page, KM_USER0);
+
+	/* The PA-RISC 2.0 Architecture book states on page F-6:
+	   "Before a write-capable translation is enabled, *all*
+	   non-equivalently-aliased translations must be removed
+	   from the page table and purged from the TLB.  (Note
+	   that the caches are not required to be flushed at this
+	   time.)  Before any non-equivalent aliased translation
+	   is re-enabled, the virtual address range for the writeable
+	   page (the entire page) must be flushed from the cache,
+	   and the write-capable translation removed from the page
+	   table and purged from the TLB."  */
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	purge_tlb_end(flags);
+	clear_user_page_asm(vto, vaddr);
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma)
+{
+	void *vfrom, *vto;
+	unsigned long flags;
+
+	/* Copy using TMPALIAS region.  This has the advantage
+	   that the `from' page doesn't need to be flushed.  However,
+	   the `to' page must be flushed in copy_user_page_asm since
+	   it can be used to bring in executable code.  */
+
+	vfrom = kmap_atomic(from, KM_USER0);
+	vto = kmap_atomic(to, KM_USER1);
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	pdtlb_kernel(vfrom);
+	purge_tlb_end(flags);
+	copy_user_page_asm(vto, vfrom, vaddr);
+	flush_dcache_page_asm(__pa(vto), vaddr);
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER1); */
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+#endif /* CONFIG_PARISC_TMPALIAS */
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 6f05944..3caa199 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -483,7 +483,7 @@
 	 * B <-> _PAGE_DMB (memory break)
 	 *
 	 * Then incredible subtlety: The access rights are
-	 * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
+	 * _PAGE_GATEWAY, _PAGE_EXEC and _PAGE_WRITE
 	 * See 3-14 of the parisc 2.0 manual
 	 *
 	 * Finally, _PAGE_READ goes in the top bit of PL1 (so we
@@ -493,7 +493,7 @@
 
 	/* PAGE_USER indicates the page can be read with user privileges,
 	 * so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1
-	 * contains _PAGE_READ */
+	 * contains _PAGE_READ) */
 	extrd,u,*=      \pte,_PAGE_USER_BIT+32,1,%r0
 	depdi		7,11,3,\prot
 	/* If we're a gateway page, drop PL2 back to zero for promotion
@@ -1777,9 +1777,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1809,7 +1809,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1828,8 +1828,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1852,7 +1853,7 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..8094d3e 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
-	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+	.flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
-	.flags = IRQF_DISABLED | IRQF_PERCPU,
+	.flags = IRQF_PERCPU,
 };
 #endif
 
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
 {
 	local_irq_disable();	/* PARANOID - should already be disabled */
 	mtctl(~0UL, 23);	/* EIRR : clear all pending external intr */
-	claim_cpu_irqs();
 #ifdef CONFIG_SMP
-	if (!cpu_eiem)
+	if (!cpu_eiem) {
+		claim_cpu_irqs();
 		cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+	}
 #else
+	claim_cpu_irqs();
 	cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 93ff3d9..fb38149 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -199,7 +199,6 @@ ENTRY(flush_instruction_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
 	load32		cache_info, %r1
 
 	/* Flush Instruction Cache */
@@ -208,20 +207,46 @@ ENTRY(flush_instruction_cache_local)
 	LDREG		ICACHE_STRIDE(%r1), %arg1
 	LDREG		ICACHE_COUNT(%r1), %arg2
 	LDREG		ICACHE_LOOP(%r1), %arg3
-	rsm             PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fioneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fisync	/* If loop < 0, do sync */
 
 fimanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fimanyloop	/* Adjusted inner loop decr */
-	fice            %r0(%sr1, %arg0)
-	fice,m		%arg1(%sr1, %arg0)	/* Last fice and addr adjust */
+	fice            %r0(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)	/* Last fice and addr adjust */
 	movb,tr		%arg3, %r31, fimanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fisync	/* Outer loop decr */
 
 fioneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fioneloop	/* Outer loop count decr */
-	fice,m		%arg1(%sr1, %arg0)	/* Fice for one loop */
+	/* Some implementations may flush with a single fice instruction */
+	cmpib,COND(>>=),n	15, %arg2, fioneloop2
+
+fioneloop1:
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	addib,COND(>)	-16, %arg2, fioneloop1
+	fice,m		%arg1(%sr2, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fisync	/* Predict branch taken */
+
+fioneloop2:
+	addib,COND(>)	-1, %arg2, fioneloop2	/* Outer loop count decr */
+	fice,m		%arg1(%sr2, %arg0)	/* Fice for one loop */
 
 fisync:
 	sync
@@ -240,8 +265,7 @@ ENTRY(flush_data_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
-	load32 		cache_info, %r1
+	load32		cache_info, %r1
 
 	/* Flush Data Cache */
 
@@ -249,20 +273,46 @@ ENTRY(flush_data_cache_local)
 	LDREG		DCACHE_STRIDE(%r1), %arg1
 	LDREG		DCACHE_COUNT(%r1), %arg2
 	LDREG		DCACHE_LOOP(%r1), %arg3
-	rsm		PSW_SM_I, %r22
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fdoneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fdsync	/* If loop < 0, do sync */
 
 fdmanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fdmanyloop	/* Adjusted inner loop decr */
-	fdce		%r0(%sr1, %arg0)
-	fdce,m		%arg1(%sr1, %arg0)	/* Last fdce and addr adjust */
+	fdce		%r0(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)	/* Last fdce and addr adjust */
 	movb,tr		%arg3, %r31, fdmanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fdsync	/* Outer loop decr */
 
 fdoneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fdoneloop	/* Outer loop count decr */
-	fdce,m		%arg1(%sr1, %arg0)	/* Fdce for one loop */
+	/* Some implementations may flush with a single fdce instruction */
+	cmpib,COND(>>=),n	15, %arg2, fdoneloop2
+
+fdoneloop1:
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	addib,COND(>)	-16, %arg2, fdoneloop1
+	fdce,m		%arg1(%sr2, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fdsync	/* Predict branch taken */
+
+fdoneloop2:
+	addib,COND(>)	-1, %arg2, fdoneloop2	/* Outer loop count decr */
+	fdce,m		%arg1(%sr2, %arg0)	/* Fdce for one loop */
 
 fdsync:
 	syncdma
@@ -277,7 +327,34 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+/* Macros to serialize TLB purge operations on SMP.  */
+
+	.macro	tlb_lock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock,%r1
+	ldo		R%pa_tlb_lock(%r1),\la
+	rsm		PSW_SM_I,\flags
+1:	LDCW		0(\la),\tmp
+	cmpib,<>,n	0,\tmp,3f
+2:	ldw		0(\la),\tmp
+	cmpb,<>		%r0,\tmp,1b
+	nop
+	b,n		2b
+3:
+#endif
+	.endm
+
+	.macro	tlb_unlock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldi		1,\tmp
+	stw		\tmp,0(\la)
+	mtsm		\flags
+#endif
+	.endm
+
+/* Copy page using kernel mapping.  */
+
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -291,12 +368,14 @@ ENTRY(copy_user_page_asm)
 	ldd		0(%r25), %r19
 	ldi		(PAGE_SIZE / 128), %r1
 
-	ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
-	ldw		128(%r25), %r0		/* prefetch 2 */
+	/* ??? JDA: Disabled prefetch because the last two prefetches
+	   will pull lines from the next page.  */
+	// ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
+	// ldw		128(%r25), %r0		/* prefetch 2 */
 
 1:	ldd		8(%r25), %r20
-	ldw		192(%r25), %r0		/* prefetch 3 */
-	ldw		256(%r25), %r0		/* prefetch 4 */
+	// ldw		192(%r25), %r0		/* prefetch 3 */
+	// ldw		256(%r25), %r0		/* prefetch 4 */
 
 	ldd		16(%r25), %r21
 	ldd		24(%r25), %r22
@@ -399,7 +478,7 @@ ENTRY(copy_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,8 +501,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
-
 	/*
 	 * We can't do this since copy_user_page is used to bring in
 	 * file data that might have instructions. Since the data would
@@ -435,6 +512,7 @@ ENDPROC(copy_user_page_asm)
 	 * use it if more information is passed into copy_user_page().
 	 * Have to do some measurements to see if it is worthwhile to
 	 * lobby for such a change.
+	 *
 	 */
 
 ENTRY(copy_user_page_asm)
@@ -442,16 +520,21 @@ ENTRY(copy_user_page_asm)
 	.callinfo NO_CALLS
 	.entry
 
+	/* Convert virtual `to' and `from' addresses to physical addresses.
+	   Move `from' physical address to non shadowed register.  */
 	ldil		L%(__PAGE_OFFSET), %r1
 	sub		%r26, %r1, %r26
-	sub		%r25, %r1, %r23		/* move physical addr into non shadowed reg */
+	sub		%r25, %r1, %r23
 
 	ldil		L%(TMPALIAS_MAP_START), %r28
 	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
-	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+#endif
+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
+	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
@@ -466,10 +549,76 @@ ENTRY(copy_user_page_asm)
 
 	/* Purge any old translations */
 
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
+	tlb_unlock	%r20,%r21,%r22
+
+#ifdef CONFIG_64BIT
+	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
+	 * Unroll the loop by hand and arrange insn appropriately.
+	 * GCC probably can do this just as well.
+	 */
+
+	ldd		0(%r29), %r19
+	ldi		(PAGE_SIZE / 128), %r1
+
+	/* ldw		64(%r29), %r0		/* prefetch 1 cacheline ahead */
+	/* ldw		128(%r29), %r0		/* prefetch 2 */
+
+1:	ldd		8(%r29), %r20
+	/* ldw		192(%r29), %r0		/* prefetch 3 */
+	/* ldw		256(%r29), %r0		/* prefetch 4 */
+
+	ldd		16(%r29), %r21
+	ldd		24(%r29), %r22
+	std		%r19, 0(%r28)
+	std		%r20, 8(%r28)
+
+	ldd		32(%r29), %r19
+	ldd		40(%r29), %r20
+	std		%r21, 16(%r28)
+	std		%r22, 24(%r28)
+
+	ldd		48(%r29), %r21
+	ldd		56(%r29), %r22
+	std		%r19, 32(%r28)
+	std		%r20, 40(%r28)
+
+	ldd		64(%r29), %r19
+	ldd		72(%r29), %r20
+	std		%r21, 48(%r28)
+	std		%r22, 56(%r28)
+
+	ldd		80(%r29), %r21
+	ldd		88(%r29), %r22
+	std		%r19, 64(%r28)
+	std		%r20, 72(%r28)
+
+	ldd		 96(%r29), %r19
+	ldd		104(%r29), %r20
+	std		%r21, 80(%r28)
+	std		%r22, 88(%r28)
+
+	ldd		112(%r29), %r21
+	ldd		120(%r29), %r22
+	std		%r19, 96(%r28)
+	std		%r20, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r21, 112(%r28)
+	std		%r22, 120(%r28)
+	ldo		128(%r28), %r28
 
-	ldi		64, %r1
+	/* conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 * The ldd should only get executed if the branch is taken.
+	 */
+	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
+	ldd		0(%r29), %r19		/* start next loads */
+
+#else
+	ldi		(PAGE_SIZE / 64), %r1
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,9 +629,7 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
+1:	ldw		0(%r29), %r19
 	ldw		4(%r29), %r20
 	ldw		8(%r29), %r21
 	ldw		12(%r29), %r22
@@ -515,8 +662,10 @@ ENTRY(copy_user_page_asm)
 	stw		%r21, 56(%r28)
 	stw		%r22, 60(%r28)
 	ldo		64(%r28), %r28
+
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
+#endif
 
 	bv		%r0(%r2)
 	nop
@@ -524,9 +673,8 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -550,7 +698,9 @@ ENTRY(__clear_user_page_asm)
 
 	/* Purge any old translation */
 
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
 
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
@@ -580,8 +730,7 @@ ENTRY(__clear_user_page_asm)
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
-	stw		%r0, 0(%r28)
+1:	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
 	stw		%r0, 12(%r28)
@@ -606,7 +755,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_dcache_page_asm)
 	.proc
@@ -630,7 +779,9 @@ ENTRY(flush_dcache_page_asm)
 
 	/* Purge any old translation */
 
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
 
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), %r1
@@ -663,8 +814,11 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		%r1(%r28)
 
 	sync
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r25)
+	tlb_unlock	%r20,%r21,%r22
 	bv		%r0(%r2)
-	pdtlb		(%r25)
+	nop
 	.exit
 
 	.procend
@@ -692,7 +846,9 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
+	tlb_lock	%r20,%r21,%r22
 	pitlb		(%sr0,%r28)
+	tlb_unlock	%r20,%r21,%r22
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -725,8 +881,11 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r1(%r28)
 
 	sync
-	bv		%r0(%r2)
+	tlb_lock	%r20,%r21,%r22
 	pitlb		(%sr0,%r25)
+	tlb_unlock	%r20,%r21,%r22
+	bv		%r0(%r2)
+	nop
 	.exit
 
 	.procend
@@ -775,7 +934,7 @@ ENTRY(flush_kernel_dcache_page_asm)
 	.procend
 ENDPROC(flush_kernel_dcache_page_asm)
 
-ENTRY(purge_kernel_dcache_page)
+ENTRY(purge_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -815,7 +974,7 @@ ENTRY(purge_kernel_dcache_page)
 	.exit
 
 	.procend
-ENDPROC(purge_kernel_dcache_page)
+ENDPROC(purge_kernel_dcache_page_asm)
 
 ENTRY(flush_user_dcache_range_asm)
 	.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index a7bb757..546c51d 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -159,4 +159,4 @@ EXPORT_SYMBOL(_mcount);
 #endif
 
 /* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 12c1ed3..5dd1059 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -314,7 +314,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #if DEBUG_SIG
 	/* Assert that we're flushing in the correct space... */
 	{
-		int sid;
+		unsigned long sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
 		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
 		       sid, frame->tramp);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..f0cb56e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 45b7389..53a1c69 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -76,7 +76,7 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 6) < cpt) {
+	if ((cycles_elapsed >> 7) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
diff --git a/arch/parisc/math-emu/cnv_float.h b/arch/parisc/math-emu/cnv_float.h
index 9071e09..37299c7 100644
--- a/arch/parisc/math-emu/cnv_float.h
+++ b/arch/parisc/math-emu/cnv_float.h
@@ -347,16 +347,15 @@
     Sgl_isinexact_to_fix(sgl_value,exponent)
 
 #define Duint_from_sgl_mantissa(sgl_value,exponent,dresultA,dresultB)	\
-  {Sall(sgl_value) <<= SGL_EXP_LENGTH;  /*  left-justify  */		\
+  {unsigned int val = Sall(sgl_value) << SGL_EXP_LENGTH;		\
     if (exponent <= 31) {						\
     	Dintp1(dresultA) = 0;						\
-    	Dintp2(dresultB) = (unsigned)Sall(sgl_value) >> (31 - exponent); \
+    	Dintp2(dresultB) = val >> (31 - exponent);			\
     }									\
     else {								\
-    	Dintp1(dresultA) = Sall(sgl_value) >> (63 - exponent);		\
-    	Dintp2(dresultB) = Sall(sgl_value) << (exponent - 31);		\
+    	Dintp1(dresultA) = val >> (63 - exponent);			\
+    	Dintp2(dresultB) = exponent <= 62 ? val << (exponent - 31) : 0;	\
     }									\
-    Sall(sgl_value) >>= SGL_EXP_LENGTH;  /* return to original */	\
   }
 
 #define Duint_setzero(dresultA,dresultB) 	\
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index f7c543a..d69738a 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -549,6 +549,7 @@ out_eoi:
 void
 handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 {
+	struct irqaction *action;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	kstat_incr_irqs_this_cpu(irq, desc);
@@ -556,7 +557,9 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 	if (chip->irq_ack)
 		chip->irq_ack(&desc->irq_data);
 
-	handle_irq_event_percpu(desc, desc->action);
+	action = desc->action;
+	if (action)
+		handle_irq_event_percpu(desc, action);
 
 	if (chip->irq_eoi)
 		chip->irq_eoi(&desc->irq_data);

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On Sat, Jan 28, 2012 at 02:38:10PM -0800, Kevin Cernekee wrote:
> On Thu, Nov 24, 2011 at 12:18 PM, Michael S. Tsirkin <mst@redhat.com> wro=
te:
> > mips copied pci_iomap from generic code, probably to avoid
> > pulling the rest of iomap.c in. =A0Since that's in
> > a separate file now, we can reuse the common implementation.
> =

> [snip]
> =

> > - =A0 =A0 =A0 if (flags & IORESOURCE_IO)
> > - =A0 =A0 =A0 =A0 =A0 =A0 =A0 return ioport_map_pci(dev, start, len);
> =

> While investigating a new warning on the 3.3-rc1 MIPS build (unused
> static function ioport_map_pci()), I noticed that this patch has shown
> up in Linus' tree as commit eab90291d35438bcebf7c3dc85be66d0f24e3002.
> =

> I am not completely clear on the implications it has on mapping PCI I/O r=
egions:

Yes, my bad, I missed the difference between ioport_map_pci
and ioport_map for both MIPS and SH.
I'll post a patch to fix this, which is probably preferable
to reintroducing the code duplication where it might
trip us up again.

-- =

MST

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Reposting as vger is anal about mail format...

On Sun, Jan 29, 2012 at 10:45 PM, John David Anglin
<dave.anglin@bell.net> wrote:
>
> I believe both versions fix the minifail bug and some thread related =
bugs
> seen in the perl, python and git testsuites. =C2=A0However, there are=
 still more
> thread related bugs to fix.
>
> The minifail bug is fixed by the TLB purge added to ptep_set_wrprotec=
t,
> and flushing the `from' page in copy_user_page (kmap version). =C2=A0=
The
> tmpalias version doesn't need this flush, but the `to' page needs to =
be
> flushed. =C2=A0So, both versions have about the same flush requiremen=
ts.
>
> This version fixes the math emulation bug that I reported, but I have
> another one that I haven't tracked down.

That's awesome news!

If you want write access to the wiki to update e.g. this page
http://wiki.parisc-linux.org/TestCases=C2=A0I'd be more than happy to a=
dd
your account to the ACL.

> It would be great if someone else could test the change on something =
other
> than a rp3440. =C2=A0The cache issues are very subtle. =C2=A0If the r=
esults are positive,
> I will break up the patch and formally submit it.

Well I have an a500-5x (PA8600) that's doing nothing, but I really
don't have time to do any kind of testing now or in the near future.
I'd be happy to provide access to the hardware tho.

HTH

T-Bone

--
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http://www.parisc-linux.org/~varenet/
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> From f49bd6e33a3b6f499a6039a5980af21893524e86 Mon Sep 17 00:00:00 2001
> From: Rolf Eike Beer <eike-kernel@sf-tec.de>
> Date: Mon, 16 Jan 2012 18:59:29 +0100
> Subject: [PATCH 1/2] parisc: fix compile without CONFIG_PCI
>
> This function is already defined as a noop in include/asm-generic/iomap.h.
>
> Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
> ---
>  arch/parisc/lib/iomap.c |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
> index fb8e10a..b2b0408 100644
> --- a/arch/parisc/lib/iomap.c
> +++ b/arch/parisc/lib/iomap.c
> @@ -436,12 +436,14 @@ void ioport_unmap(void __iomem *addr)
>  	}
>  }
>
> +#ifdef CONFIG_PCI
>  void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
>  {
>  	if (!INDIRECT_ADDR(addr)) {
>  		iounmap(addr);
>  	}
>  }
> +#endif /* CONFIG_PCI */
>
>  EXPORT_SYMBOL(ioread8);
>  EXPORT_SYMBOL(ioread16);
> @@ -461,4 +463,6 @@ EXPORT_SYMBOL(iowrite16_rep);
>  EXPORT_SYMBOL(iowrite32_rep);
>  EXPORT_SYMBOL(ioport_map);
>  EXPORT_SYMBOL(ioport_unmap);
> +#ifdef CONFIG_PCI
>  EXPORT_SYMBOL(pci_iounmap);
> +#endif /* CONFIG_PCI */

James?
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Subject: [PATCH] fix compile break caused by iomap: make IOPORT/PCI mapping
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The problem in

commit fea80311a939a746533a6d7e7c3183729d6a3faf
Author: Randy Dunlap <rdunlap@xenotime.net>
Date:   Sun Jul 24 11:39:14 2011 -0700

    iomap: make IOPORT/PCI mapping functions conditional


is that if your architecture supplies pci_iomap/pci_iounmap, it expects
always to supply them.  Adding empty body defitions in the !CONFIG_PCI
case, which is what this patch does, breaks the parisc compile because
the functions become doubly defined.  It took us a while to spot this,
because we don't actually build !CONFIG_PCI very often (only if someone
is brave enough to test the snake/asp machines).

Since the note in the commit log says this is to fix a
CONFIG_GENERIC_IOMAP issue (which it does because CONFIG_GENERIC_IOMAP
supplies pci_iounmap only if CONFIG_PCI is set), there should actually
have been a condition upon this.  This should make sure no other
architecture's !CONFIG_PCI compile breaks in the same way as parisc.

The fix had to be updated to take account of the GENERIC_PCI_IOMAP
separation.

Reported-by: Rolf Eike Beer <eike@sf-mail.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

---

diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index 8a3d4fd..6afd7d6 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -70,7 +70,7 @@ extern void ioport_unmap(void __iomem *);
 /* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
-#else
+#elif defined(CONFIG_GENERIC_IOMAP)
 struct pci_dev;
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 { }
diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h
index 8de4b73..217eb3d 100644
--- a/include/asm-generic/pci_iomap.h
+++ b/include/asm-generic/pci_iomap.h
@@ -15,7 +15,7 @@ struct pci_dev;
 #ifdef CONFIG_PCI
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
-#else
+#elif defined(CONFIG_GENERIC_PCI_IOMAP)
 static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
 {
 	return NULL;



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Tell the PCI core about host bridge address translation so it can take
care of bus-to-resource conversion for us.

N.B. parisc has far more complicated code for bus/resource conversion than
most arches.  I don't think the actual hardware behavior is any more
complicated, and I tried to compute the simple offset between the bus
address and the CPU address, but it's likely that I didn't get all the
details just right here, and I haven't been able to test it.

CC: linux-parisc@vger.kernel.org
---
 arch/parisc/include/asm/pci.h |   38 +-----------------------------
 arch/parisc/kernel/pci.c      |   52 -----------------------------------------
 drivers/parisc/dino.c         |   27 +++++----------------
 drivers/parisc/lba_pci.c      |   31 +++++-------------------
 4 files changed, 13 insertions(+), 135 deletions(-)

diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index 2242a5c..a8b591f 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -82,38 +82,8 @@ struct pci_hba_data {
 
 #ifdef CONFIG_64BIT
 #define PCI_F_EXTEND		0xffffffff00000000UL
-#define PCI_IS_LMMIO(hba,a)	pci_is_lmmio(hba,a)
-
-/* We need to know if an address is LMMMIO or GMMIO.
- * LMMIO requires mangling and GMMIO we must use as-is.
- */
-static __inline__  int pci_is_lmmio(struct pci_hba_data *hba, unsigned long a)
-{
-	return(((a) & PCI_F_EXTEND) == PCI_F_EXTEND);
-}
-
-/*
-** Convert between PCI (IO_VIEW) addresses and processor (PA_VIEW) addresses.
-** See pci.c for more conversions used by Generic PCI code.
-**
-** Platform characteristics/firmware guarantee that
-**	(1) PA_VIEW - IO_VIEW = lmmio_offset for both LMMIO and ELMMIO
-**	(2) PA_VIEW == IO_VIEW for GMMIO
-*/
-#define PCI_BUS_ADDR(hba,a)	(PCI_IS_LMMIO(hba,a)	\
-		?  ((a) - hba->lmmio_space_offset)	/* mangle LMMIO */ \
-		: (a))					/* GMMIO */
-#define PCI_HOST_ADDR(hba,a)	(((a) & PCI_F_EXTEND) == 0 \
-		? (a) + hba->lmmio_space_offset \
-		: (a))
-
 #else	/* !CONFIG_64BIT */
-
-#define PCI_BUS_ADDR(hba,a)	(a)
-#define PCI_HOST_ADDR(hba,a)	(a)
 #define PCI_F_EXTEND		0UL
-#define PCI_IS_LMMIO(hba,a)	(1)	/* 32-bit doesn't support GMMIO */
-
 #endif /* !CONFIG_64BIT */
 
 /*
@@ -245,13 +215,7 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 }
 #endif
 
-extern void
-pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
-			 struct resource *res);
-
-extern void
-pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-			struct pci_bus_region *region);
+#define ARCH_HAS_GENERIC_PCI_OFFSETS
 
 static inline void pcibios_penalize_isa_irq(int irq, int active)
 {
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 9efd974..74d544b 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -195,58 +195,6 @@ void __init pcibios_init_bus(struct pci_bus *bus)
 	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bridge_ctl);
 }
 
-/* called by drivers/pci/setup-bus.c:pci_setup_bridge().  */
-void __devinit pcibios_resource_to_bus(struct pci_dev *dev,
-		struct pci_bus_region *region, struct resource *res)
-{
-#ifdef CONFIG_64BIT
-	struct pci_hba_data *hba = HBA_DATA(dev->bus->bridge->platform_data);
-#endif
-
-	if (res->flags & IORESOURCE_IO) {
-		/*
-		** I/O space may see busnumbers here. Something
-		** in the form of 0xbbxxxx where bb is the bus num
-		** and xxxx is the I/O port space address.
-		** Remaining address translation are done in the
-		** PCI Host adapter specific code - ie dino_out8.
-		*/
-		region->start = PCI_PORT_ADDR(res->start);
-		region->end   = PCI_PORT_ADDR(res->end);
-	} else if (res->flags & IORESOURCE_MEM) {
-		/* Convert MMIO addr to PCI addr (undo global virtualization) */
-		region->start = PCI_BUS_ADDR(hba, res->start);
-		region->end   = PCI_BUS_ADDR(hba, res->end);
-	}
-
-	DBG_RES("pcibios_resource_to_bus(%02x %s [%lx,%lx])\n",
-		dev->bus->number, res->flags & IORESOURCE_IO ? "IO" : "MEM",
-		region->start, region->end);
-}
-
-void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-			      struct pci_bus_region *region)
-{
-#ifdef CONFIG_64BIT
-	struct pci_hba_data *hba = HBA_DATA(dev->bus->bridge->platform_data);
-#endif
-
-	if (res->flags & IORESOURCE_MEM) {
-		res->start = PCI_HOST_ADDR(hba, region->start);
-		res->end = PCI_HOST_ADDR(hba, region->end);
-	}
-
-	if (res->flags & IORESOURCE_IO) {
-		res->start = region->start;
-		res->end = region->end;
-	}
-}
-
-#ifdef CONFIG_HOTPLUG
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-EXPORT_SYMBOL(pcibios_bus_to_resource);
-#endif
-
 /*
  * pcibios align resources() is called every time generic PCI code
  * wants to generate a new address. The process of looking for
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 7ff10c1..0610e91 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -553,7 +553,6 @@ dino_fixup_bus(struct pci_bus *bus)
 	struct list_head *ln;
         struct pci_dev *dev;
         struct dino_device *dino_dev = DINO_DEV(parisc_walk_tree(bus->bridge));
-	int port_base = HBA_PORT_BASE(dino_dev->hba.hba_num);
 
 	DBG(KERN_WARNING "%s(0x%p) bus %d platform_data 0x%p\n",
 	    __func__, bus, bus->secondary,
@@ -599,8 +598,6 @@ dino_fixup_bus(struct pci_bus *bus)
 
 
 	list_for_each(ln, &bus->devices) {
-		int i;
-
 		dev = pci_dev_b(ln);
 		if (is_card_dino(&dino_dev->hba.dev->id))
 			dino_card_fixup(dev);
@@ -612,21 +609,6 @@ dino_fixup_bus(struct pci_bus *bus)
 		if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)
 			continue;
 
-		/* Adjust the I/O Port space addresses */
-		for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-			struct resource *res = &dev->resource[i];
-			if (res->flags & IORESOURCE_IO) {
-				res->start |= port_base;
-				res->end |= port_base;
-			}
-#ifdef __LP64__
-			/* Sign Extend MMIO addresses */
-			else if (res->flags & IORESOURCE_MEM) {
-				res->start |= F_EXTEND(0UL);
-				res->end   |= F_EXTEND(0UL);
-			}
-#endif
-		}
 		/* null out the ROM resource if there is one (we don't
 		 * care about an expansion rom on parisc, since it
 		 * usually contains (x86) bios code) */
@@ -991,11 +973,14 @@ static int __init dino_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = dino_dev;
 
-	pci_add_resource(&resources, &dino_dev->hba.io_space);
+	pci_add_resource_offset(&resources, &dino_dev->hba.io_space,
+				HBA_PORT_BASE(dino_dev->hba.hba_num));
 	if (dino_dev->hba.lmmio_space.flags)
-		pci_add_resource(&resources, &dino_dev->hba.lmmio_space);
+		pci_add_resource_offset(&resources, &dino_dev->hba.lmmio_space,
+					dino_dev->hba.lmmio_space_offset);
 	if (dino_dev->hba.elmmio_space.flags)
-		pci_add_resource(&resources, &dino_dev->hba.elmmio_space);
+		pci_add_resource_offset(&resources, &dino_dev->hba.elmmio_space,
+					dino_dev->hba.lmmio_space_offset);
 	if (dino_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
 
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index d5f3d75..e885764 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -635,7 +635,6 @@ lba_fixup_bus(struct pci_bus *bus)
 	u16 status;
 #endif
 	struct lba_device *ldev = LBA_DEV(parisc_walk_tree(bus->bridge));
-	int lba_portbase = HBA_PORT_BASE(ldev->hba.hba_num);
 
 	DBG("lba_fixup_bus(0x%p) bus %d platform_data 0x%p\n",
 		bus, bus->secondary, bus->bridge->platform_data);
@@ -726,27 +725,6 @@ lba_fixup_bus(struct pci_bus *bus)
 			if (!res->start)
 				continue;
 
-			if (res->flags & IORESOURCE_IO) {
-				DBG("lba_fixup_bus() I/O Ports [%lx/%lx] -> ",
-					res->start, res->end);
-				res->start |= lba_portbase;
-				res->end   |= lba_portbase;
-				DBG("[%lx/%lx]\n", res->start, res->end);
-			} else if (res->flags & IORESOURCE_MEM) {
-				/*
-				** Convert PCI (IO_VIEW) addresses to
-				** processor (PA_VIEW) addresses
-				 */
-				DBG("lba_fixup_bus() MMIO [%lx/%lx] -> ",
-					res->start, res->end);
-				res->start = PCI_HOST_ADDR(HBA_DATA(ldev), res->start);
-				res->end   = PCI_HOST_ADDR(HBA_DATA(ldev), res->end);
-				DBG("[%lx/%lx]\n", res->start, res->end);
-			} else {
-				DBG("lba_fixup_bus() WTF? 0x%lx [%lx/%lx] XXX",
-					res->flags, res->start, res->end);
-			}
-
 			/*
 			** FIXME: this will result in whinging for devices
 			** that share expansion ROMs (think quad tulip), but
@@ -1514,11 +1492,14 @@ lba_driver_probe(struct parisc_device *dev)
 		lba_dev->hba.lmmio_space.flags = 0;
 	}
 
-	pci_add_resource(&resources, &lba_dev->hba.io_space);
+	pci_add_resource_offset(&resources, &lba_dev->hba.io_space,
+				HBA_PORT_BASE(lba_dev->hba.hba_num));
 	if (lba_dev->hba.elmmio_space.start)
-		pci_add_resource(&resources, &lba_dev->hba.elmmio_space);
+		pci_add_resource_offset(&resources, &lba_dev->hba.elmmio_space,
+					lba_dev->hba.lmmio_space_offset);
 	if (lba_dev->hba.lmmio_space.flags)
-		pci_add_resource(&resources, &lba_dev->hba.lmmio_space);
+		pci_add_resource_offset(&resources, &lba_dev->hba.lmmio_space,
+					lba_dev->hba.lmmio_space_offset);
 	if (lba_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
 


From - Thu Nov 08 21:07:52 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH] fix compile break caused by iomap: make IOPORT/PCI mapping functions conditional
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Am Montag 30 Januar 2012, 10:40:47 schrieb James Bottomley:
> The problem in
> 
> commit fea80311a939a746533a6d7e7c3183729d6a3faf
> Author: Randy Dunlap <rdunlap@xenotime.net>
> Date:   Sun Jul 24 11:39:14 2011 -0700
> 
>     iomap: make IOPORT/PCI mapping functions conditional
> 
> 
> is that if your architecture supplies pci_iomap/pci_iounmap, it expects
> always to supply them.  Adding empty body defitions in the !CONFIG_PCI
> case, which is what this patch does, breaks the parisc compile because
> the functions become doubly defined.  It took us a while to spot this,
> because we don't actually build !CONFIG_PCI very often (only if someone
> is brave enough to test the snake/asp machines).
> 
> Since the note in the commit log says this is to fix a
> CONFIG_GENERIC_IOMAP issue (which it does because CONFIG_GENERIC_IOMAP
> supplies pci_iounmap only if CONFIG_PCI is set), there should actually
> have been a condition upon this.  This should make sure no other
> architecture's !CONFIG_PCI compile breaks in the same way as parisc.
> 
> The fix had to be updated to take account of the GENERIC_PCI_IOMAP
> separation.

So this means we end up still building the PA-RISC PCI code even if the config 
says no PCI. That doesn't really sound consistent to me. I really would have 
expected that we do not build any non-void PCI code then.

> Reported-by: Rolf Eike Beer <eike@sf-mail.de>

I used the wrong email account when sending out the last patch where you took 
that from, please change that to the address used in this mail.

Eike
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On Mon, 2012-01-30 at 21:10 +0100, Rolf Eike Beer wrote:
> Am Montag 30 Januar 2012, 10:40:47 schrieb James Bottomley:
> > The problem in
> > 
> > commit fea80311a939a746533a6d7e7c3183729d6a3faf
> > Author: Randy Dunlap <rdunlap@xenotime.net>
> > Date:   Sun Jul 24 11:39:14 2011 -0700
> > 
> >     iomap: make IOPORT/PCI mapping functions conditional
> > 
> > 
> > is that if your architecture supplies pci_iomap/pci_iounmap, it expects
> > always to supply them.  Adding empty body defitions in the !CONFIG_PCI
> > case, which is what this patch does, breaks the parisc compile because
> > the functions become doubly defined.  It took us a while to spot this,
> > because we don't actually build !CONFIG_PCI very often (only if someone
> > is brave enough to test the snake/asp machines).
> > 
> > Since the note in the commit log says this is to fix a
> > CONFIG_GENERIC_IOMAP issue (which it does because CONFIG_GENERIC_IOMAP
> > supplies pci_iounmap only if CONFIG_PCI is set), there should actually
> > have been a condition upon this.  This should make sure no other
> > architecture's !CONFIG_PCI compile breaks in the same way as parisc.
> > 
> > The fix had to be updated to take account of the GENERIC_PCI_IOMAP
> > separation.
> 
> So this means we end up still building the PA-RISC PCI code even if the config 
> says no PCI. That doesn't really sound consistent to me. I really would have 
> expected that we do not build any non-void PCI code then.

The first object is to fix the build breakage which likely affects more
than just parisc. Having a non-stub for the pci functions is just a few
spurious bytes in a kernel that's megabytes big (and it's what we were
doing previously).

James


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From: Yinghai Lu <yinghai@kernel.org>
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Subject: [PATCH 08/14] PCI, parisc: Register busn_res for root buses
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Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    2 ++
 drivers/parisc/lba_pci.c |    3 +++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 7ff10c1..3f2e203 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -1014,7 +1014,9 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(bus, dino_current_bus, 255);
 	bus->subordinate = pci_scan_child_bus(bus);
+	pci_bus_update_busn_res_end(bus, bus->subordinate);
 
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index d5f3d75..b58bf8b 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1531,6 +1531,9 @@ lba_driver_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(lba_bus, lba_dev->hba.bus_num.start,
+				lba_dev->hba.bus_num.end);
+
 	lba_bus->subordinate = pci_scan_child_bus(lba_bus);
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
-- 
1.7.7

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From: Maciej Rutecki <maciej.rutecki@gmail.com>
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On sobota, 28 stycznia 2012 o 20:56:05 James Bottomley wrote:
> It looks like it might be a tg3 or RCU issue.  When I shut down my
> parisc SMP 4 way system, I get an immediate hang here
> 
> Deconfiguring network interfaces...Internet Systems Consortium DHCP
> Client 4.1.1-P1
> Copyright 2004-2010 Internet Systems Consortium.
> All rights reserved.
> For info, please visit https://www.isc.org/software/dhcp/
> 
> Listening on LPF/eth0/00:30:6e:4b:15:59
> Sending on   LPF/eth0/00:30:6e:4b:15:59
> Sending on   Socket/fallback
> DHCPRELEASE on eth0 to 153.66.140.171 port 67
> 
> Followed some seconds later by
> 
> [ 5714.268000] INFO: rcu_sched detected stall on CPU 3 (t=15000 jiffies)
> [ 5714.268000] Backtrace:
> [ 5714.268000]  [<000000004011fdd4>] show_stack+0x14/0x20
> [ 5714.268000]  [<000000004011fdf8>] dump_stack+0x18/0x28
> [ 5714.268000]  [<00000000401c1fec>] __rcu_pending+0xcc/0x5c8
> [ 5714.276000]  [<00000000401c2d60>] rcu_check_callbacks+0x80/0xf8
> [ 5714.276000] INFO: rcu_sched detected stalls on CPUs/tasks: { 3}
> (detected by 2, t=15002 jiffies)
> [ 5714.276000] Backtrace:
> [ 5714.276000]  [<000000004011fdd4>] show_stack+0x14/0x20
> [ 5714.276000]  [<000000004011fdf8>] dump_stack+0x18/0x28
> [ 5714.276000]  [<00000000401c2484>] __rcu_pending+0x564/0x5c8
> [ 5714.276000]  [<00000000401c2d60>] rcu_check_callbacks+0x80/0xf8
> [ 5714.276000]  [<0000000040155dc8>] update_process_times+0x68/0xd8
> [ 5714.276000]  [<0000000040121378>] timer_interrupt+0x1c0/0x220
> [ 5714.276000]  [<00000000401b9cfc>] handle_irq_event_percpu+0xa4/0x2a0
> [ 5714.276000]  [<00000000401be58c>] handle_percpu_irq+0x9c/0xd0
> [ 5714.276000]  [<00000000401b9500>] generic_handle_irq+0x48/0x60
> [ 5714.276000]  [<0000000040121a50>] do_cpu_irq_mask+0x1b8/0x2a8
> [ 5714.276000]  [<0000000040105074>] intr_return+0x0/0x4
> [ 5714.276000]  [<0000000040105074>] intr_return+0x0/0x4
> [ 5714.276000]  [<00000000401296dc>] cpu_idle+0x74/0x80
> [ 5714.276000]  [<000000004078e1d0>] smp_callin+0x150/0x1a0
> [ 5714.276000]
> [ 5714.348000]  [<0000000040155dc8>] update_process_times+0x68/0xd8
> [ 5714.348000]  [<0000000040121378>] timer_interrupt+0x1c0/0x220
> [ 5714.356000]  [<00000000401b9cfc>] handle_irq_event_percpu+0xa4/0x2a0
> [ 5714.364000]  [<00000000401be58c>] handle_percpu_irq+0x9c/0xd0
> [ 5714.364000]  [<00000000401b9500>] generic_handle_irq+0x48/0x60
> [ 5714.372000]  [<0000000040121a50>] do_cpu_irq_mask+0x1b8/0x2a8
> [ 5714.372000]  [<0000000040105074>] intr_return+0x0/0x4
> [ 5714.380000]
> 
> This didn't happen in 3.2
> 
> Sysrq still works and sysrq-T shows ifconfig stuck:
> 
> 
> [ 6030.376000] ifconfig        R  running task        0  1470   1452
> 0x00000014
> [ 6030.376000] Backtrace:
> [ 6030.376000]  [<000000004017c6c8>] scheduler_tick+0x180/0x1a0
> [ 6030.376000]  [<0000000040155e1c>] update_process_times+0xbc/0xd8
> [ 6030.376000]  [<0000000040121378>] timer_interrupt+0x1c0/0x220
> [ 6030.376000]  [<00000000401b9d54>] handle_irq_event_percpu+0xfc/0x2a0
> [ 6030.376000]  [<0000000040105074>] intr_return+0x0/0x4
> [ 6030.376000]  [<000000004011c638>] _raw_spin_lock_bh+0x30/0x40
> [ 6030.376000]  [<000000004011c620>] _raw_spin_lock_bh+0x18/0x40
> [ 6030.376000]  [<000000001c6e3a64>] tg3_chip_reset+0x9c4/0x1328 [tg3]
> [ 6030.376000]  [<000000001c6eca9c>] tg3_halt+0xdc/0x1d8 [tg3]
> [ 6030.376000]  [<000000001c6f9964>] tg3_close+0x194/0x3f0 [tg3]
> [ 6030.376000]  [<0000000040411518>] __dev_close_many+0x100/0x178
> [ 6030.376000]  [<0000000040415130>] __dev_close+0x30/0x50
> [ 6030.376000]  [<000000004040ebf8>] __dev_change_flags+0xb0/0x1d0
> [ 6030.376000]  [<00000000404113b0>] dev_change_flags+0x28/0x90
> [ 6030.376000]  [<0000000040488d70>] devinet_ioctl+0x748/0x898
> [ 6030.376000]  [<000000004048a5f4>] inet_ioctl+0x204/0x228
> 
> James

I created a Bugzilla entry at 
https://bugzilla.kernel.org/show_bug.cgi?id=42707
for your bug report, please add your address to the CC list in there, thanks!

-- 
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From: Yinghai Lu <yinghai@kernel.org>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.pci,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH 08/15] PCI, parisc: Register busn_res for root buses
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1247419>

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    2 ++
 drivers/parisc/lba_pci.c |    3 +++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 7ff10c1..3f2e203 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -1014,7 +1014,9 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(bus, dino_current_bus, 255);
 	bus->subordinate = pci_scan_child_bus(bus);
+	pci_bus_update_busn_res_end(bus, bus->subordinate);
 
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index d5f3d75..b58bf8b 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1531,6 +1531,9 @@ lba_driver_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(lba_bus, lba_dev->hba.bus_num.start,
+				lba_dev->hba.bus_num.end);
+
 	lba_bus->subordinate = pci_scan_child_bus(lba_bus);
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
-- 
1.7.7


From - Thu Nov 08 21:07:52 2018
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From: Cong Wang <xiyou.wangcong@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [Patch] parisc: include <linux/prefetch.h> in drivers/parisc/iommu-helpers.h
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drivers/parisc/iommu-helpers.h:62: error: implicit declaration of function 'prefetchw'
make[3]: *** [drivers/parisc/sba_iommu.o] Error 1

drivers/parisc/iommu-helpers.h needs to #include <linux/prefetch.h>
where prefetchw is declared.

Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>

---
diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h
index a9c46cc..460aed9 100644
--- a/drivers/parisc/iommu-helpers.h
+++ b/drivers/parisc/iommu-helpers.h
@@ -1,3 +1,5 @@
+#include <linux/prefetch.h>
+
 /**
  * iommu_fill_pdir - Insert coalesced scatter/gather chunks into the I/O Pdir.
  * @ioc: The I/O Controller.
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From - Thu Nov 08 21:07:52 2018
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From - Thu Nov 08 21:07:52 2018
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From: Paul Bame <bame@riverrock.org>
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Subject: parisc-linux.org issue
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Hey I just got notified that parisc-linux.org has a vulnerable apache
server.  I did an apt-get upgrade but it didn't upgrade the server,
and the vulnerability was fixed in lenny's apache2 but not apache "1".

So one question is whether (and who) to move that server to apache2.

A bigger question is what to do since lenny is at end of life.

And who's watching this machine?

	-p
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From: Yinghai Lu <yinghai@kernel.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/4135>

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    2 ++
 drivers/parisc/lba_pci.c |    3 +++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 7ff10c1..3f2e203 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -1014,7 +1014,9 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(bus, dino_current_bus, 255);
 	bus->subordinate = pci_scan_child_bus(bus);
+	pci_bus_update_busn_res_end(bus, bus->subordinate);
 
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index d5f3d75..b58bf8b 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1531,6 +1531,9 @@ lba_driver_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(lba_bus, lba_dev->hba.bus_num.start,
+				lba_dev->hba.bus_num.end);
+
 	lba_bus->subordinate = pci_scan_child_bus(lba_bus);
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
-- 
1.7.7

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From - Thu Nov 08 21:07:53 2018
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From: dann frazier <dannf@dannf.org>
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Subject: decommissioning parisc-linux.org
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As Paul noted[1], parisc-linux.org was running a vulnerable
apache which got the attention of HP's security audit team. I've been
doing most of the maintenance of the OS on this machine for a while,
but that has just meant apt-get upgrading when cron-apt told me to for
a few years. Turns out apache-ssl was obsolete (an etch version!), so
no amount of upgrading was going to fix that.

At this point I've removed apache-ssl. I tried installing apache2 to
see if any web pages would magically work - it didn't, so right now
the website is 404 farm :( I didn't spend much time trying to handle
that since.....

parisc-linux.org is running the last stable release of Debian that
supported hppa ('lenny'), and its life is now expired. As such, I
think we really need to migrate the site to another maintained
distribution and/or architecture. I'm willing to help migrate services
for the next month or so - let's just say 2012.03.14 for a good round
(heh) date - after which I plan to halt this system and let HP know
the hardware can be put to other uses. From what I can tell, we
originally installed this system almost exactly 9 years ago - ah,
rememember its predecessor dsl2? Good times. Anyway -

*************************************************************************
*** If you need any data off this machine, now's the time to grab it! ***
*************************************************************************

If you'd like to take over longterm hosting the website/domain, please
get in touch with taggart or I. If you'd like to continue using the
machine and/or HP's network to do the hosting, I can probably find a
contact for you there - though I wouldn't bet on it.

In the meantime, if anyone wants to get the website working on apache2
for the remainder of the system's lifetime, please let me know.

[1] http://www.spinics.net/lists/linux-parisc/msg03946.html
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From - Thu Nov 08 21:07:53 2018
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From: Thibaut VARENE <varenet@parisc-linux.org>
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To: dann frazier <dannf@dannf.org>
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On Wed, Feb 8, 2012 at 3:33 PM, dann frazier <dannf@dannf.org> wrote:
> As Paul noted[1], parisc-linux.org was running a vulnerable
> apache which got the attention of HP's security audit team. I've been
> doing most of the maintenance of the OS on this machine for a while,
> but that has just meant apt-get upgrading when cron-apt told me to for
> a few years. Turns out apache-ssl was obsolete (an etch version!), so
> no amount of upgrading was going to fix that.
>
> At this point I've removed apache-ssl. I tried installing apache2 to
> see if any web pages would magically work - it didn't, so right now
> the website is 404 farm :( I didn't spend much time trying to handle
> that since.....
>
> parisc-linux.org is running the last stable release of Debian that
> supported hppa ('lenny'), and its life is now expired. As such, I
> think we really need to migrate the site to another maintained
> distribution and/or architecture. I'm willing to help migrate services
> for the next month or so - let's just say 2012.03.14 for a good round
> (heh) date - after which I plan to halt this system and let HP know
> the hardware can be put to other uses. From what I can tell, we
> originally installed this system almost exactly 9 years ago - ah,
> rememember its predecessor dsl2? Good times. Anyway -
>
> *************************************************************************
> *** If you need any data off this machine, now's the time to grab it! ***
> *************************************************************************
>
> If you'd like to take over longterm hosting the website/domain, please
> get in touch with taggart or I. If you'd like to continue using the
> machine and/or HP's network to do the hosting, I can probably find a
> contact for you there - though I wouldn't bet on it.
>
> In the meantime, if anyone wants to get the website working on apache2
> for the remainder of the system's lifetime, please let me know.

Hi Dann,

What's the status of @p-l.o email addresses? I'm receiving a fair bit
of email on this domain, and I think others do too, if we need to move
on elsewhere it'd be nice to have a little headstart... ;)

Thanks

T-Bone


-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:07:53 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: decommissioning parisc-linux.org
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Cc: dann frazier <dannf@dannf.org>, linux-parisc@vger.kernel.org,
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To: Thibaut VARENE <varenet@parisc-linux.org>
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On 8-Feb-12, at 5:16 PM, Thibaut VARENE wrote:

> On Wed, Feb 8, 2012 at 3:33 PM, dann frazier <dannf@dannf.org> wrote:
>> As Paul noted[1], parisc-linux.org was running a vulnerable
>> apache which got the attention of HP's security audit team. I've been
>> doing most of the maintenance of the OS on this machine for a while,
>> but that has just meant apt-get upgrading when cron-apt told me to  
>> for
>> a few years. Turns out apache-ssl was obsolete (an etch version!), so
>> no amount of upgrading was going to fix that.
>>
>> At this point I've removed apache-ssl. I tried installing apache2 to
>> see if any web pages would magically work - it didn't, so right now
>> the website is 404 farm :( I didn't spend much time trying to handle
>> that since.....
>>
>> parisc-linux.org is running the last stable release of Debian that
>> supported hppa ('lenny'), and its life is now expired. As such, I
>> think we really need to migrate the site to another maintained
>> distribution and/or architecture. I'm willing to help migrate  
>> services
>> for the next month or so - let's just say 2012.03.14 for a good round
>> (heh) date - after which I plan to halt this system and let HP know
>> the hardware can be put to other uses. From what I can tell, we
>> originally installed this system almost exactly 9 years ago - ah,
>> rememember its predecessor dsl2? Good times. Anyway -
>>
>> *************************************************************************
>> *** If you need any data off this machine, now's the time to grab  
>> it! ***
>> *************************************************************************
>>
>> If you'd like to take over longterm hosting the website/domain,  
>> please
>> get in touch with taggart or I. If you'd like to continue using the
>> machine and/or HP's network to do the hosting, I can probably find a
>> contact for you there - though I wouldn't bet on it.
>>
>> In the meantime, if anyone wants to get the website working on  
>> apache2
>> for the remainder of the system's lifetime, please let me know.
>
> Hi Dann,
>
> What's the status of @p-l.o email addresses? I'm receiving a fair bit
> of email on this domain, and I think others do too, if we need to move
> on elsewhere it'd be nice to have a little headstart... ;)
>
> Thanks
>
> T-Bone
>
>
> -- 
> Thibaut VARENE
> http://www.parisc-linux.org/~varenet/


parisc-linux.org could be updated to unstable.  As I have mentioned, I  
am working
to restart an unstable buildd for parisc.  The magnum machine in the  
ESIEE cluster
is currently being updated for this purpose.  It is currently running  
a 3.2.2 kernel
and glibc 2.13-10.  I intend to update it to 3.2.4 and glibc 2.13-26  
this weekend.
I have built a big hunk of unstable/

As far as I can tell, the last kernel patch that I post to the @p-l.o  
list, resolves the SMP
stability issues that have plagued parisc for years.  I now have about  
six weeks running
experience on rp3440s without a single random segmentation fault or  
hpmc.  The
machines have been running at load levels not previously possible.   
This is the result
of many incremental fixes to the tool chain and the kernel.

I have no objection to moving the site to another arch although there  
is some political
benefit to having it run on parisc.  I am willing to try to build  
apache2 from unstable.

I believe it would be useful to keep the site going until we see if  
restarting buildd will
fly or not given the current level of improvement.

Regards,
Dave
--
John David Anglin	dave.anglin@bell.net

PS: My first parisc machine is still running and it is 22 years old!

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Cc: Thibaut VARENE <varenet@parisc-linux.org>,
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	taggart@lackof.org, bame@riverrock.org
To: John David Anglin <dave.anglin@bell.net>
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On 8-Feb-12, at 6:47 PM, John David Anglin wrote:

> I am willing to try to build apache2 from unstable.

I have uploaded hppa apache2 2.2.22-1 debs to my archives-new directory
on shirka.esiee.fr.

Dave
--
John David Anglin	dave.anglin@bell.net



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On 2/8/2012 8:53 PM, John David Anglin wrote:
> On 8-Feb-12, at 6:47 PM, John David Anglin wrote:
>
>> I am willing to try to build apache2 from unstable.
>
> I have uploaded hppa apache2 2.2.22-1 debs to my archives-new directory
> on shirka.esiee.fr.
I uploaded the latest apr debs this morning.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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On Thu, Feb 09, 2012 at 09:54:39AM -0500, John David Anglin wrote:
> On 2/8/2012 8:53 PM, John David Anglin wrote:
> >On 8-Feb-12, at 6:47 PM, John David Anglin wrote:
> >
> >>I am willing to try to build apache2 from unstable.
> >
> >I have uploaded hppa apache2 2.2.22-1 debs to my archives-new directory
> >on shirka.esiee.fr.
> I uploaded the latest apr debs this morning.

We have a good enough apache2 installed already from the lenny
security repo, but it isn't configured to play nice with the existing
web pages.  Anybody interested in doing that?

	-p
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From: dann frazier <dannf@dannf.org>
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Cc: Thibaut VARENE <varenet@parisc-linux.org>,
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To: John David Anglin <dave.anglin@bell.net>
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On Wed, Feb 08, 2012 at 06:47:45PM -0500, John David Anglin wrote:
> On 8-Feb-12, at 5:16 PM, Thibaut VARENE wrote:
> 
> >On Wed, Feb 8, 2012 at 3:33 PM, dann frazier <dannf@dannf.org> wrote:
> >>As Paul noted[1], parisc-linux.org was running a vulnerable
> >>apache which got the attention of HP's security audit team. I've been
> >>doing most of the maintenance of the OS on this machine for a while,
> >>but that has just meant apt-get upgrading when cron-apt told me
> >>to for
> >>a few years. Turns out apache-ssl was obsolete (an etch version!), so
> >>no amount of upgrading was going to fix that.
> >>
> >>At this point I've removed apache-ssl. I tried installing apache2 to
> >>see if any web pages would magically work - it didn't, so right now
> >>the website is 404 farm :( I didn't spend much time trying to handle
> >>that since.....
> >>
> >>parisc-linux.org is running the last stable release of Debian that
> >>supported hppa ('lenny'), and its life is now expired. As such, I
> >>think we really need to migrate the site to another maintained
> >>distribution and/or architecture. I'm willing to help migrate
> >>services
> >>for the next month or so - let's just say 2012.03.14 for a good round
> >>(heh) date - after which I plan to halt this system and let HP know
> >>the hardware can be put to other uses. From what I can tell, we
> >>originally installed this system almost exactly 9 years ago - ah,
> >>rememember its predecessor dsl2? Good times. Anyway -
> >>
> >>*************************************************************************
> >>*** If you need any data off this machine, now's the time to
> >>grab it! ***
> >>*************************************************************************
> >>
> >>If you'd like to take over longterm hosting the website/domain,
> >>please
> >>get in touch with taggart or I. If you'd like to continue using the
> >>machine and/or HP's network to do the hosting, I can probably find a
> >>contact for you there - though I wouldn't bet on it.
> >>
> >>In the meantime, if anyone wants to get the website working on
> >>apache2
> >>for the remainder of the system's lifetime, please let me know.
> >
> >Hi Dann,
> >
> >What's the status of @p-l.o email addresses? I'm receiving a fair bit
> >of email on this domain, and I think others do too, if we need to move
> >on elsewhere it'd be nice to have a little headstart... ;)
> >
> >Thanks
> >
> >T-Bone
> >
> >
> 
> 
> parisc-linux.org could be updated to unstable.  As I have mentioned,
> I am working
> to restart an unstable buildd for parisc.  

Yeah, I know this had started, but I haven't been keeping up with
the current status.

> The magnum machine in the
> ESIEE cluster
> is currently being updated for this purpose.  It is currently
> running a 3.2.2 kernel
> and glibc 2.13-10.  I intend to update it to 3.2.4 and glibc 2.13-26
> this weekend.
> I have built a big hunk of unstable/
> 
> As far as I can tell, the last kernel patch that I post to the
> @p-l.o list, resolves the SMP
> stability issues that have plagued parisc for years.  I now have
> about six weeks running
> experience on rp3440s without a single random segmentation fault or
> hpmc.  The
> machines have been running at load levels not previously possible.
> This is the result
> of many incremental fixes to the tool chain and the kernel.

Cool

> I have no objection to moving the site to another arch although
> there is some political
> benefit to having it run on parisc.  I am willing to try to build
> apache2 from unstable.

Well, we have apache2 installed from lenny now - it just isn't serving
anything useful :)

> I believe it would be useful to keep the site going until we see if
> restarting buildd will
> fly or not given the current level of improvement.

I am supportive of the site continuing to self-host, and I realize
that means it needs to run devel bits. But, there's two separate
issues I see there.

 1) We need to bridge the gap between now and then. Even if we had a
    buildd online today, just grinding through the necessary backlog
    would take weeks.
 2) I won't have time to be the principle admin for a system running
    unstable. I'm happy to help here & there, and w/ whatever
    transition ends up happening, but things like manually
    patching/fixing kernels, monitoring security updates and how they
    impact our bits, etc. Its a lot of work just for managing a single
    host.

For 1) I think the right answer is to move services to a new
stable/secure host for the time being and shut the existing machine
down. We can retain the option of moving things back once the unstable
port is in full force. As a side benefit, such a migration should also
help get the existing services running w/ newer packages
(e.g. apache2) and allow us cleanly transition services over w/
minimal downtime (demonstrate a working system first, then update DNS
records). Who knows how painful it will be to go from pre-lenny to sid
all at once.

2) can be solved by moving the domain to someone else's
infrastructure, or having a trusted volunteer to be the primary
admin for the system.
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On Wed, Feb 08, 2012 at 11:16:16PM +0100, Thibaut VARENE wrote:
> On Wed, Feb 8, 2012 at 3:33 PM, dann frazier <dannf@dannf.org> wrote:
> > As Paul noted[1], parisc-linux.org was running a vulnerable
> > apache which got the attention of HP's security audit team. I've been
> > doing most of the maintenance of the OS on this machine for a while,
> > but that has just meant apt-get upgrading when cron-apt told me to for
> > a few years. Turns out apache-ssl was obsolete (an etch version!), so
> > no amount of upgrading was going to fix that.
> >
> > At this point I've removed apache-ssl. I tried installing apache2 to
> > see if any web pages would magically work - it didn't, so right now
> > the website is 404 farm :( I didn't spend much time trying to handle
> > that since.....
> >
> > parisc-linux.org is running the last stable release of Debian that
> > supported hppa ('lenny'), and its life is now expired. As such, I
> > think we really need to migrate the site to another maintained
> > distribution and/or architecture. I'm willing to help migrate services
> > for the next month or so - let's just say 2012.03.14 for a good round
> > (heh) date - after which I plan to halt this system and let HP know
> > the hardware can be put to other uses. From what I can tell, we
> > originally installed this system almost exactly 9 years ago - ah,
> > rememember its predecessor dsl2? Good times. Anyway -
> >
> > *************************************************************************
> > *** If you need any data off this machine, now's the time to grab it! ***
> > *************************************************************************
> >
> > If you'd like to take over longterm hosting the website/domain, please
> > get in touch with taggart or I. If you'd like to continue using the
> > machine and/or HP's network to do the hosting, I can probably find a
> > contact for you there - though I wouldn't bet on it.
> >
> > In the meantime, if anyone wants to get the website working on apache2
> > for the remainder of the system's lifetime, please let me know.
> 
> Hi Dann,
> 
> What's the status of @p-l.o email addresses? I'm receiving a fair bit
> of email on this domain, and I think others do too, if we need to move
> on elsewhere it'd be nice to have a little headstart... ;)

My assumption is that mail will follow the domain.
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>>>>> "Dann" == dann frazier <dannf@dannf.org> writes:

>> What's the status of @p-l.o email addresses? I'm receiving a fair bit
>> of email on this domain, and I think others do too, if we need to
>> move on elsewhere it'd be nice to have a little headstart... ;)

Dann> My assumption is that mail will follow the domain.

I would like something to be done with the mail situation. It totally
sucks being secondary mx since I get to deal with all the spam bounces
and blacklistings.

We can either move mail forwarding to my machine wholesale so I can fix
things or we can leave it on palinux and discontinue having me as
secondary. I'm happy either way.

I'm also happy to continue providing DNS. I would like the ability to
update the zone files, though. I would have fixed the mail problems long
ago if I could...

-- 
Martin K. Petersen	Oracle Linux Engineering
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On Thu, Feb 09, 2012 at 02:18:21PM -0500, Martin K. Petersen wrote:
> >>>>> "Dann" == dann frazier <dannf@dannf.org> writes:
> 
> >> What's the status of @p-l.o email addresses? I'm receiving a fair bit
> >> of email on this domain, and I think others do too, if we need to
> >> move on elsewhere it'd be nice to have a little headstart... ;)
> 
> Dann> My assumption is that mail will follow the domain.
> 
> I would like something to be done with the mail situation. It totally
> sucks being secondary mx since I get to deal with all the spam bounces
> and blacklistings.
> 
> We can either move mail forwarding to my machine wholesale so I can fix
> things or we can leave it on palinux and discontinue having me as
> secondary. I'm happy either way.

Well, my vote is that we take you up on that offer and move it to you,
at least while things are in flux. Only problem I see  is that some
people don't forward their mail off of palinux, but its probably a
good idea to deprecate that RSN.

> I'm also happy to continue providing DNS. I would like the ability to
> update the zone files, though. I would have fixed the mail problems long
> ago if I could...

I don't see any reason we wouldn't let you take over even primary if
you wanted to. Frankly, I'm surprised we hadn't given you whatever
privs you needed already - really just seems like an oversight on our
part, my apologies.

--
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Subject: [PATCH v2 13/18] parisc/PCI: get rid of device resource fixups
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.pci/13474>

Tell the PCI core about host bridge address translation so it can take
care of bus-to-resource conversion for us.

CC: linux-parisc@vger.kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/parisc/include/asm/pci.h |   38 +-----------------------------
 arch/parisc/kernel/pci.c      |   52 -----------------------------------------
 drivers/parisc/dino.c         |   27 +++++----------------
 drivers/parisc/lba_pci.c      |   31 +++++-------------------
 4 files changed, 13 insertions(+), 135 deletions(-)

diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index 2242a5c..a8b591f 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -82,38 +82,8 @@ struct pci_hba_data {
 
 #ifdef CONFIG_64BIT
 #define PCI_F_EXTEND		0xffffffff00000000UL
-#define PCI_IS_LMMIO(hba,a)	pci_is_lmmio(hba,a)
-
-/* We need to know if an address is LMMMIO or GMMIO.
- * LMMIO requires mangling and GMMIO we must use as-is.
- */
-static __inline__  int pci_is_lmmio(struct pci_hba_data *hba, unsigned long a)
-{
-	return(((a) & PCI_F_EXTEND) == PCI_F_EXTEND);
-}
-
-/*
-** Convert between PCI (IO_VIEW) addresses and processor (PA_VIEW) addresses.
-** See pci.c for more conversions used by Generic PCI code.
-**
-** Platform characteristics/firmware guarantee that
-**	(1) PA_VIEW - IO_VIEW = lmmio_offset for both LMMIO and ELMMIO
-**	(2) PA_VIEW == IO_VIEW for GMMIO
-*/
-#define PCI_BUS_ADDR(hba,a)	(PCI_IS_LMMIO(hba,a)	\
-		?  ((a) - hba->lmmio_space_offset)	/* mangle LMMIO */ \
-		: (a))					/* GMMIO */
-#define PCI_HOST_ADDR(hba,a)	(((a) & PCI_F_EXTEND) == 0 \
-		? (a) + hba->lmmio_space_offset \
-		: (a))
-
 #else	/* !CONFIG_64BIT */
-
-#define PCI_BUS_ADDR(hba,a)	(a)
-#define PCI_HOST_ADDR(hba,a)	(a)
 #define PCI_F_EXTEND		0UL
-#define PCI_IS_LMMIO(hba,a)	(1)	/* 32-bit doesn't support GMMIO */
-
 #endif /* !CONFIG_64BIT */
 
 /*
@@ -245,13 +215,7 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 }
 #endif
 
-extern void
-pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
-			 struct resource *res);
-
-extern void
-pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-			struct pci_bus_region *region);
+#define ARCH_HAS_GENERIC_PCI_OFFSETS
 
 static inline void pcibios_penalize_isa_irq(int irq, int active)
 {
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 9efd974..74d544b 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -195,58 +195,6 @@ void __init pcibios_init_bus(struct pci_bus *bus)
 	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bridge_ctl);
 }
 
-/* called by drivers/pci/setup-bus.c:pci_setup_bridge().  */
-void __devinit pcibios_resource_to_bus(struct pci_dev *dev,
-		struct pci_bus_region *region, struct resource *res)
-{
-#ifdef CONFIG_64BIT
-	struct pci_hba_data *hba = HBA_DATA(dev->bus->bridge->platform_data);
-#endif
-
-	if (res->flags & IORESOURCE_IO) {
-		/*
-		** I/O space may see busnumbers here. Something
-		** in the form of 0xbbxxxx where bb is the bus num
-		** and xxxx is the I/O port space address.
-		** Remaining address translation are done in the
-		** PCI Host adapter specific code - ie dino_out8.
-		*/
-		region->start = PCI_PORT_ADDR(res->start);
-		region->end   = PCI_PORT_ADDR(res->end);
-	} else if (res->flags & IORESOURCE_MEM) {
-		/* Convert MMIO addr to PCI addr (undo global virtualization) */
-		region->start = PCI_BUS_ADDR(hba, res->start);
-		region->end   = PCI_BUS_ADDR(hba, res->end);
-	}
-
-	DBG_RES("pcibios_resource_to_bus(%02x %s [%lx,%lx])\n",
-		dev->bus->number, res->flags & IORESOURCE_IO ? "IO" : "MEM",
-		region->start, region->end);
-}
-
-void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-			      struct pci_bus_region *region)
-{
-#ifdef CONFIG_64BIT
-	struct pci_hba_data *hba = HBA_DATA(dev->bus->bridge->platform_data);
-#endif
-
-	if (res->flags & IORESOURCE_MEM) {
-		res->start = PCI_HOST_ADDR(hba, region->start);
-		res->end = PCI_HOST_ADDR(hba, region->end);
-	}
-
-	if (res->flags & IORESOURCE_IO) {
-		res->start = region->start;
-		res->end = region->end;
-	}
-}
-
-#ifdef CONFIG_HOTPLUG
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-EXPORT_SYMBOL(pcibios_bus_to_resource);
-#endif
-
 /*
  * pcibios align resources() is called every time generic PCI code
  * wants to generate a new address. The process of looking for
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 7ff10c1..0610e91 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -553,7 +553,6 @@ dino_fixup_bus(struct pci_bus *bus)
 	struct list_head *ln;
         struct pci_dev *dev;
         struct dino_device *dino_dev = DINO_DEV(parisc_walk_tree(bus->bridge));
-	int port_base = HBA_PORT_BASE(dino_dev->hba.hba_num);
 
 	DBG(KERN_WARNING "%s(0x%p) bus %d platform_data 0x%p\n",
 	    __func__, bus, bus->secondary,
@@ -599,8 +598,6 @@ dino_fixup_bus(struct pci_bus *bus)
 
 
 	list_for_each(ln, &bus->devices) {
-		int i;
-
 		dev = pci_dev_b(ln);
 		if (is_card_dino(&dino_dev->hba.dev->id))
 			dino_card_fixup(dev);
@@ -612,21 +609,6 @@ dino_fixup_bus(struct pci_bus *bus)
 		if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)
 			continue;
 
-		/* Adjust the I/O Port space addresses */
-		for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-			struct resource *res = &dev->resource[i];
-			if (res->flags & IORESOURCE_IO) {
-				res->start |= port_base;
-				res->end |= port_base;
-			}
-#ifdef __LP64__
-			/* Sign Extend MMIO addresses */
-			else if (res->flags & IORESOURCE_MEM) {
-				res->start |= F_EXTEND(0UL);
-				res->end   |= F_EXTEND(0UL);
-			}
-#endif
-		}
 		/* null out the ROM resource if there is one (we don't
 		 * care about an expansion rom on parisc, since it
 		 * usually contains (x86) bios code) */
@@ -991,11 +973,14 @@ static int __init dino_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = dino_dev;
 
-	pci_add_resource(&resources, &dino_dev->hba.io_space);
+	pci_add_resource_offset(&resources, &dino_dev->hba.io_space,
+				HBA_PORT_BASE(dino_dev->hba.hba_num));
 	if (dino_dev->hba.lmmio_space.flags)
-		pci_add_resource(&resources, &dino_dev->hba.lmmio_space);
+		pci_add_resource_offset(&resources, &dino_dev->hba.lmmio_space,
+					dino_dev->hba.lmmio_space_offset);
 	if (dino_dev->hba.elmmio_space.flags)
-		pci_add_resource(&resources, &dino_dev->hba.elmmio_space);
+		pci_add_resource_offset(&resources, &dino_dev->hba.elmmio_space,
+					dino_dev->hba.lmmio_space_offset);
 	if (dino_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
 
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index d5f3d75..e885764 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -635,7 +635,6 @@ lba_fixup_bus(struct pci_bus *bus)
 	u16 status;
 #endif
 	struct lba_device *ldev = LBA_DEV(parisc_walk_tree(bus->bridge));
-	int lba_portbase = HBA_PORT_BASE(ldev->hba.hba_num);
 
 	DBG("lba_fixup_bus(0x%p) bus %d platform_data 0x%p\n",
 		bus, bus->secondary, bus->bridge->platform_data);
@@ -726,27 +725,6 @@ lba_fixup_bus(struct pci_bus *bus)
 			if (!res->start)
 				continue;
 
-			if (res->flags & IORESOURCE_IO) {
-				DBG("lba_fixup_bus() I/O Ports [%lx/%lx] -> ",
-					res->start, res->end);
-				res->start |= lba_portbase;
-				res->end   |= lba_portbase;
-				DBG("[%lx/%lx]\n", res->start, res->end);
-			} else if (res->flags & IORESOURCE_MEM) {
-				/*
-				** Convert PCI (IO_VIEW) addresses to
-				** processor (PA_VIEW) addresses
-				 */
-				DBG("lba_fixup_bus() MMIO [%lx/%lx] -> ",
-					res->start, res->end);
-				res->start = PCI_HOST_ADDR(HBA_DATA(ldev), res->start);
-				res->end   = PCI_HOST_ADDR(HBA_DATA(ldev), res->end);
-				DBG("[%lx/%lx]\n", res->start, res->end);
-			} else {
-				DBG("lba_fixup_bus() WTF? 0x%lx [%lx/%lx] XXX",
-					res->flags, res->start, res->end);
-			}
-
 			/*
 			** FIXME: this will result in whinging for devices
 			** that share expansion ROMs (think quad tulip), but
@@ -1514,11 +1492,14 @@ lba_driver_probe(struct parisc_device *dev)
 		lba_dev->hba.lmmio_space.flags = 0;
 	}
 
-	pci_add_resource(&resources, &lba_dev->hba.io_space);
+	pci_add_resource_offset(&resources, &lba_dev->hba.io_space,
+				HBA_PORT_BASE(lba_dev->hba.hba_num));
 	if (lba_dev->hba.elmmio_space.start)
-		pci_add_resource(&resources, &lba_dev->hba.elmmio_space);
+		pci_add_resource_offset(&resources, &lba_dev->hba.elmmio_space,
+					lba_dev->hba.lmmio_space_offset);
 	if (lba_dev->hba.lmmio_space.flags)
-		pci_add_resource(&resources, &lba_dev->hba.lmmio_space);
+		pci_add_resource_offset(&resources, &lba_dev->hba.lmmio_space,
+					lba_dev->hba.lmmio_space_offset);
 	if (lba_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
 


From - Thu Nov 08 21:07:54 2018
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From: Cong Wang <amwang@redhat.com>
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Subject: [PATCH 59/60] highmem: kill all __kmap_atomic() [swarren@nvidia.com:
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Cc: Nicolas Pitre <nicolas.pitre@linaro.org>, linux-mips@linux-mips.org,
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To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ppc.embedded/48482>

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
---
 arch/arm/include/asm/highmem.h       |    2 +-
 arch/arm/mm/highmem.c                |    4 ++--
 arch/frv/include/asm/highmem.h       |    2 +-
 arch/frv/mm/highmem.c                |    4 ++--
 arch/mips/include/asm/highmem.h      |    2 +-
 arch/mips/mm/highmem.c               |    4 ++--
 arch/mn10300/include/asm/highmem.h   |    2 +-
 arch/parisc/include/asm/cacheflush.h |    2 +-
 arch/powerpc/include/asm/highmem.h   |    2 +-
 arch/sparc/include/asm/highmem.h     |    2 +-
 arch/sparc/mm/highmem.c              |    4 ++--
 arch/tile/include/asm/highmem.h      |    2 +-
 arch/tile/mm/highmem.c               |    4 ++--
 arch/x86/include/asm/highmem.h       |    2 +-
 arch/x86/mm/highmem_32.c             |    4 ++--
 include/linux/highmem.h              |   11 +++--------
 16 files changed, 24 insertions(+), 29 deletions(-)

diff --git a/arch/arm/include/asm/highmem.h b/arch/arm/include/asm/highmem.h
index a4edd19..8c5e828 100644
--- a/arch/arm/include/asm/highmem.h
+++ b/arch/arm/include/asm/highmem.h
@@ -57,7 +57,7 @@ static inline void *kmap_high_get(struct page *page)
 #ifdef CONFIG_HIGHMEM
 extern void *kmap(struct page *page);
 extern void kunmap(struct page *page);
-extern void *__kmap_atomic(struct page *page);
+extern void *kmap_atomic(struct page *page);
 extern void __kunmap_atomic(void *kvaddr);
 extern void *kmap_atomic_pfn(unsigned long pfn);
 extern struct page *kmap_atomic_to_page(const void *ptr);
diff --git a/arch/arm/mm/highmem.c b/arch/arm/mm/highmem.c
index 807c057..5a21505 100644
--- a/arch/arm/mm/highmem.c
+++ b/arch/arm/mm/highmem.c
@@ -36,7 +36,7 @@ void kunmap(struct page *page)
 }
 EXPORT_SYMBOL(kunmap);
 
-void *__kmap_atomic(struct page *page)
+void *kmap_atomic(struct page *page)
 {
 	unsigned int idx;
 	unsigned long vaddr;
@@ -81,7 +81,7 @@ void *__kmap_atomic(struct page *page)
 
 	return (void *)vaddr;
 }
-EXPORT_SYMBOL(__kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic);
 
 void __kunmap_atomic(void *kvaddr)
 {
diff --git a/arch/frv/include/asm/highmem.h b/arch/frv/include/asm/highmem.h
index a8d6565..716956a 100644
--- a/arch/frv/include/asm/highmem.h
+++ b/arch/frv/include/asm/highmem.h
@@ -157,7 +157,7 @@ static inline void kunmap_atomic_primary(void *kvaddr, enum km_type type)
 	pagefault_enable();
 }
 
-void *__kmap_atomic(struct page *page);
+void *kmap_atomic(struct page *page);
 void __kunmap_atomic(void *kvaddr);
 
 #endif /* !__ASSEMBLY__ */
diff --git a/arch/frv/mm/highmem.c b/arch/frv/mm/highmem.c
index fd7fcd4..31902c9 100644
--- a/arch/frv/mm/highmem.c
+++ b/arch/frv/mm/highmem.c
@@ -37,7 +37,7 @@ struct page *kmap_atomic_to_page(void *ptr)
 	return virt_to_page(ptr);
 }
 
-void *__kmap_atomic(struct page *page)
+void *kmap_atomic(struct page *page)
 {
 	unsigned long paddr;
 	int type;
@@ -64,7 +64,7 @@ void *__kmap_atomic(struct page *page)
 		return NULL;
 	}
 }
-EXPORT_SYMBOL(__kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic);
 
 void __kunmap_atomic(void *kvaddr)
 {
diff --git a/arch/mips/include/asm/highmem.h b/arch/mips/include/asm/highmem.h
index 77e6440..2d91888 100644
--- a/arch/mips/include/asm/highmem.h
+++ b/arch/mips/include/asm/highmem.h
@@ -47,7 +47,7 @@ extern void kunmap_high(struct page *page);
 
 extern void *kmap(struct page *page);
 extern void kunmap(struct page *page);
-extern void *__kmap_atomic(struct page *page);
+extern void *kmap_atomic(struct page *page);
 extern void __kunmap_atomic(void *kvaddr);
 extern void *kmap_atomic_pfn(unsigned long pfn);
 extern struct page *kmap_atomic_to_page(void *ptr);
diff --git a/arch/mips/mm/highmem.c b/arch/mips/mm/highmem.c
index 3634c7e..aff5705 100644
--- a/arch/mips/mm/highmem.c
+++ b/arch/mips/mm/highmem.c
@@ -41,7 +41,7 @@ EXPORT_SYMBOL(kunmap);
  * kmaps are appropriate for short, tight code paths only.
  */
 
-void *__kmap_atomic(struct page *page)
+void *kmap_atomic(struct page *page)
 {
 	unsigned long vaddr;
 	int idx, type;
@@ -62,7 +62,7 @@ void *__kmap_atomic(struct page *page)
 
 	return (void*) vaddr;
 }
-EXPORT_SYMBOL(__kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic);
 
 void __kunmap_atomic(void *kvaddr)
 {
diff --git a/arch/mn10300/include/asm/highmem.h b/arch/mn10300/include/asm/highmem.h
index bfe2d88..7c137cd 100644
--- a/arch/mn10300/include/asm/highmem.h
+++ b/arch/mn10300/include/asm/highmem.h
@@ -70,7 +70,7 @@ static inline void kunmap(struct page *page)
  * be used in IRQ contexts, so in some (very limited) cases we need
  * it.
  */
-static inline unsigned long __kmap_atomic(struct page *page)
+static inline unsigned long kmap_atomic(struct page *page)
 {
 	unsigned long vaddr;
 	int idx, type;
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index da601dd..9f21ab0 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -140,7 +140,7 @@ static inline void *kmap(struct page *page)
 
 #define kunmap(page)			kunmap_parisc(page_address(page))
 
-static inline void *__kmap_atomic(struct page *page)
+static inline void *kmap_atomic(struct page *page)
 {
 	pagefault_disable();
 	return page_address(page);
diff --git a/arch/powerpc/include/asm/highmem.h b/arch/powerpc/include/asm/highmem.h
index dbc2640..caaf6e0 100644
--- a/arch/powerpc/include/asm/highmem.h
+++ b/arch/powerpc/include/asm/highmem.h
@@ -79,7 +79,7 @@ static inline void kunmap(struct page *page)
 	kunmap_high(page);
 }
 
-static inline void *__kmap_atomic(struct page *page)
+static inline void *kmap_atomic(struct page *page)
 {
 	return kmap_atomic_prot(page, kmap_prot);
 }
diff --git a/arch/sparc/include/asm/highmem.h b/arch/sparc/include/asm/highmem.h
index 3d7afbb..3b6e00d 100644
--- a/arch/sparc/include/asm/highmem.h
+++ b/arch/sparc/include/asm/highmem.h
@@ -70,7 +70,7 @@ static inline void kunmap(struct page *page)
 	kunmap_high(page);
 }
 
-extern void *__kmap_atomic(struct page *page);
+extern void *kmap_atomic(struct page *page);
 extern void __kunmap_atomic(void *kvaddr);
 extern struct page *kmap_atomic_to_page(void *vaddr);
 
diff --git a/arch/sparc/mm/highmem.c b/arch/sparc/mm/highmem.c
index 77140a0..055c66c 100644
--- a/arch/sparc/mm/highmem.c
+++ b/arch/sparc/mm/highmem.c
@@ -30,7 +30,7 @@
 #include <asm/tlbflush.h>
 #include <asm/fixmap.h>
 
-void *__kmap_atomic(struct page *page)
+void *kmap_atomic(struct page *page)
 {
 	unsigned long vaddr;
 	long idx, type;
@@ -64,7 +64,7 @@ void *__kmap_atomic(struct page *page)
 
 	return (void*) vaddr;
 }
-EXPORT_SYMBOL(__kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic);
 
 void __kunmap_atomic(void *kvaddr)
 {
diff --git a/arch/tile/include/asm/highmem.h b/arch/tile/include/asm/highmem.h
index b2a6c5d..fc8429a 100644
--- a/arch/tile/include/asm/highmem.h
+++ b/arch/tile/include/asm/highmem.h
@@ -59,7 +59,7 @@ void *kmap_fix_kpte(struct page *page, int finished);
 /* This macro is used only in map_new_virtual() to map "page". */
 #define kmap_prot page_to_kpgprot(page)
 
-void *__kmap_atomic(struct page *page);
+void *kmap_atomic(struct page *page);
 void __kunmap_atomic(void *kvaddr);
 void *kmap_atomic_pfn(unsigned long pfn);
 void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
diff --git a/arch/tile/mm/highmem.c b/arch/tile/mm/highmem.c
index 31dbbd9..ef8e5a6 100644
--- a/arch/tile/mm/highmem.c
+++ b/arch/tile/mm/highmem.c
@@ -224,12 +224,12 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot)
 }
 EXPORT_SYMBOL(kmap_atomic_prot);
 
-void *__kmap_atomic(struct page *page)
+void *kmap_atomic(struct page *page)
 {
 	/* PAGE_NONE is a magic value that tells us to check immutability. */
 	return kmap_atomic_prot(page, PAGE_NONE);
 }
-EXPORT_SYMBOL(__kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic);
 
 void __kunmap_atomic(void *kvaddr)
 {
diff --git a/arch/x86/include/asm/highmem.h b/arch/x86/include/asm/highmem.h
index 3bd0402..302a323 100644
--- a/arch/x86/include/asm/highmem.h
+++ b/arch/x86/include/asm/highmem.h
@@ -61,7 +61,7 @@ void *kmap(struct page *page);
 void kunmap(struct page *page);
 
 void *kmap_atomic_prot(struct page *page, pgprot_t prot);
-void *__kmap_atomic(struct page *page);
+void *kmap_atomic(struct page *page);
 void __kunmap_atomic(void *kvaddr);
 void *kmap_atomic_pfn(unsigned long pfn);
 void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index f4f29b1..6f31ee5 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -51,11 +51,11 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot)
 }
 EXPORT_SYMBOL(kmap_atomic_prot);
 
-void *__kmap_atomic(struct page *page)
+void *kmap_atomic(struct page *page)
 {
 	return kmap_atomic_prot(page, kmap_prot);
 }
-EXPORT_SYMBOL(__kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic);
 
 /*
  * This is the same as kmap_atomic() but can map memory that doesn't
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 284ec55..6549ed7 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -55,12 +55,12 @@ static inline void kunmap(struct page *page)
 {
 }
 
-static inline void *__kmap_atomic(struct page *page)
+static inline void *kmap_atomic(struct page *page)
 {
 	pagefault_disable();
 	return page_address(page);
 }
-#define kmap_atomic_prot(page, prot)	__kmap_atomic(page)
+#define kmap_atomic_prot(page, prot)	kmap_atomic(page)
 
 static inline void __kunmap_atomic(void *addr)
 {
@@ -121,15 +121,10 @@ static inline void kmap_atomic_idx_pop(void)
 #define NARG_(_2, _1, n, ...) n
 #define NARG(...) NARG_(__VA_ARGS__, 2, 1, :)
 
-static inline void *kmap_atomic(struct page *page)
-{
-	return __kmap_atomic(page);
-}
-
 static inline void __deprecated *kmap_atomic_deprecated(struct page *page,
 							enum km_type km)
 {
-	return __kmap_atomic(page);
+	return kmap_atomic(page);
 }
 
 #define kmap_atomic1(...) kmap_atomic(__VA_ARGS__)
-- 
1.7.7.6

From - Thu Nov 08 21:07:54 2018
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From: Yinghai Lu <yinghai@kernel.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.kernel.cross-arch
Subject: [PATCH 08/22] PCI, parisc: Register busn_res for root buses
Date: Fri, 10 Feb 2012 20:06:11 -0800
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	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arch@vger.kernel.org, Yinghai Lu <yinghai@kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
	linux-parisc@vger.kernel.org
To: Jesse Barnes <jbarnes@virtuousgeek.org>,
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Xref: news.gmane.org gmane.linux.ports.parisc:4148 gmane.linux.kernel.pci:13547 gmane.linux.kernel:1252070 gmane.linux.kernel.cross-arch:12326
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/4148>

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    2 ++
 drivers/parisc/lba_pci.c |    3 +++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 7ff10c1..3f2e203 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -1014,7 +1014,9 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(bus, dino_current_bus, 255);
 	bus->subordinate = pci_scan_child_bus(bus);
+	pci_bus_update_busn_res_end(bus, bus->subordinate);
 
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index d5f3d75..b58bf8b 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1531,6 +1531,9 @@ lba_driver_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(lba_bus, lba_dev->hba.bus_num.start,
+				lba_dev->hba.bus_num.end);
+
 	lba_bus->subordinate = pci_scan_child_bus(lba_bus);
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
-- 
1.7.7

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On 9-Feb-12, at 12:55 PM, dann frazier wrote:

> Well, we have apache2 installed from lenny now - it just isn't serving
> anything useful :)
>

I don't know much about about web page setup, so I can't be much
help for this.

>> I believe it would be useful to keep the site going until we see if
>> restarting buildd will
>> fly or not given the current level of improvement.
>
> I am supportive of the site continuing to self-host, and I realize
> that means it needs to run devel bits. But, there's two separate
> issues I see there.
>
> 1) We need to bridge the gap between now and then. Even if we had a
>    buildd online today, just grinding through the necessary backlog
>    would take weeks.

Yes, I have been working on bridging the gap manually since last
summer.  I now have 5829 debs in my unstable archive.  Generally, things
have gotten easier as system stability has improved and bugs were
fixed.  It is a big job but I've done it in my spare time.

> 2) I won't have time to be the principle admin for a system running
>    unstable. I'm happy to help here & there, and w/ whatever
>    transition ends up happening, but things like manually
>    patching/fixing kernels, monitoring security updates and how they
>    impact our bits, etc. Its a lot of work just for managing a single
>    host.
>
> For 1) I think the right answer is to move services to a new
> stable/secure host for the time being and shut the existing machine
> down. We can retain the option of moving things back once the unstable
> port is in full force. As a side benefit, such a migration should also
> help get the existing services running w/ newer packages
> (e.g. apache2) and allow us cleanly transition services over w/
> minimal downtime (demonstrate a working system first, then update DNS
> records). Who knows how painful it will be to go from pre-lenny to sid
> all at once.
>
> 2) can be solved by moving the domain to someone else's
> infrastructure, or having a trusted volunteer to be the primary
> admin for the system.


I need to update a few more packages before magnum is ready for buildd.

Thibaut offered to setup the buildd but doesn't have a lot of free  
time.  I'm
willing to do general system admin and monitoring the build system,
but Thibaut  has to be in charge.  I'm hoping that Carlos is still  
willing to help
with uploads, and to try to get his current patches into the debian  
eglibc 2.13
patch set.  Otherwise, we may have to have a separate patch set.

I think ESIEE is the logical host site.  Magnum will be moved to an  
"open" IP
when it's ready to start building.  It will require careful  
firewalling at that time.

No objection to moving the current buildd to magnum.  I guess the  
security
updates are the biggest issue.  Once the buildd is running, we can  
work on
transitioning to a final release.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Sat, Feb 11, 2012 at 8:11 PM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
> On 9-Feb-12, at 12:55 PM, dann frazier wrote:

>> 2) I won't have time to be the principle admin for a system running
>> =C2=A0 unstable. I'm happy to help here & there, and w/ whatever
>> =C2=A0 transition ends up happening, but things like manually
>> =C2=A0 patching/fixing kernels, monitoring security updates and how =
they
>> =C2=A0 impact our bits, etc. Its a lot of work just for managing a s=
ingle
>> =C2=A0 host.
>>
>> For 1) I think the right answer is to move services to a new
>> stable/secure host for the time being and shut the existing machine
>> down. We can retain the option of moving things back once the unstab=
le
>> port is in full force. As a side benefit, such a migration should al=
so
>> help get the existing services running w/ newer packages
>> (e.g. apache2) and allow us cleanly transition services over w/
>> minimal downtime (demonstrate a working system first, then update DN=
S
>> records). Who knows how painful it will be to go from pre-lenny to s=
id
>> all at once.
>>
>> 2) can be solved by moving the domain to someone else's
>> infrastructure, or having a trusted volunteer to be the primary
>> admin for the system.
>
>
>
> I need to update a few more packages before magnum is ready for build=
d.
>
> Thibaut offered to setup the buildd but doesn't have a lot of free ti=
me.
> =C2=A0I'm
> willing to do general system admin and monitoring the build system,
> but Thibaut =C2=A0has to be in charge. =C2=A0I'm hoping that Carlos i=
s still willing
> to help
> with uploads, and to try to get his current patches into the debian e=
glibc
> 2.13
> patch set. =C2=A0Otherwise, we may have to have a separate patch set.

Erm, it appears I didn't make myself clear: I'm willing to provide the
/hardware/ for buildd setup, but I certainly do not have time to tend
to routine buildd maintenance, as I've mentioned already. I understood
that at some point Carlos wanted to handle that part, but from what I
gather, he's also busy so it's probably not happening. I agree we need
someone to take care of the buildds, but I'm afraid it cannot be me.

HTH

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:07:54 2018
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On 11-Feb-12, at 5:12 PM, Thibaut VARENE wrote:

> Erm, it appears I didn't make myself clear: I'm willing to provide the
> /hardware/ for buildd setup, but I certainly do not have time to tend
> to routine buildd maintenance, as I've mentioned already. I understood
> that at some point Carlos wanted to handle that part, but from what I
> gather, he's also busy so it's probably not happening. I agree we need
> someone to take care of the buildds, but I'm afraid it cannot be me.


I understand.  I'm willing to take care of the buildds, and do whatever
porting and patches that need doing as I can.  What I meant is that
you have to be in charge of system security as impacts the cluster
as a whole.  In particular, I think you will have to be involved in the
firewall setup.

I wasn't asking you to support the general system updates or buildd  
maintenance.

I will try to setup the autobuilders and hopefully Dann can answer any
questions that might arise.  The big question is the is the upload  
process
which I'm totally unfamiliar with.  There is also the security updates.

I don't know how busy Carlos is at the moment and whether he is still  
interested
in helping.  I know he gets impossible projects from time to time.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Sat, Feb 11, 2012 at 11:41 PM, John David Anglin
<dave.anglin@bell.net> wrote:
> On 11-Feb-12, at 5:12 PM, Thibaut VARENE wrote:

> I understand. =C2=A0I'm willing to take care of the buildds, and do w=
hatever
> porting and patches that need doing as I can. =C2=A0What I meant is t=
hat
> you have to be in charge of system security as impacts the cluster
> as a whole. =C2=A0In particular, I think you will have to be involved=
 in the
> firewall setup.

Oh sure, no problem with that. I'd need some info as to what are the
needed services on the machine tho. My default firewall policy is
INPUT: DROP ;-)

Besides the firewall / access control, I think the only important
thing to take care of is MX configuration (ISTR buildds need a working
MX to function) so that the machine doesn't become an open-relay that
would put ESIEE's subnet onto the DNSBLs...

> I wasn't asking you to support the general system updates or buildd
> maintenance.

Roger that.

Cheers,
T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:07:54 2018
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On Sat, Feb 11, 2012 at 5:41 PM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
> I don't know how busy Carlos is at the moment and whether he is still
> interested in helping. =A0I know he gets impossible projects from tim=
e to time.

Unfortunately I'm *very* busy right now.

However, I will continue to do all the work required to keep HPPA
working in glibc.

Please keep me in the loop and I'll try to help out whenever I can :-)

Cheers,
Carlos.
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To: "Carlos O'Donell" <carlos@systemhalted.org>
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On 11-Feb-12, at 6:29 PM, Carlos O'Donell wrote:

> However, I will continue to do all the work required to keep HPPA
> working in glibc.

Here is what needs doing in glibc:

         * need to backport current 2.13 patches to debian
         * change build to gcc-4.6
         * update test failure list, or disable so package builds
         * broken password and group caching -- I disabled it in nscd  
conf

I believe that that I sent the patches for 2.13.  They are based on what
you sent me plus Guy's patch.  If you want, I'll send them again.
It looks to me like the next debian release will be based on 2.13.

gcc-4.6 is now the default compiler for unstable although glibc still
builds with 4.4.  I believe 4.6 is better than 4.4 based on my testing.

A more complicated issue is the multiarch support in unstable.  For
testing, it may be necessary to use current or 2.22 branch binutils,
gcc with multiarch support, and a glibc build with multiarch support.
debs are in the archives directory on shirka.esiee.fr.  If you don't
want to bother updating your a500, magnum on the esiee cluster
is updated.

My latest kernel patch posted to the parisc list resolves thread
issues for git, perl, python, etc.  There are still some cancellation
failures in the glibc testsuite, but I think the overall number of fails
is down.  Given that I'm seeing much better stability not using
the tmpalias region for clear_user_page and copy_user_page,
I think the next step is to remove this support from pacache.S.
Still using the tmpalias region for flushes but in the back of my
mind I think even the flushes may be racy (same page used for
two different mappings).

The nscd bug isn't critical and has been around for years.  Still,
it needs working around.

Regards,
Dave
--
John David Anglin	dave.anglin@bell.net



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On Wed, 2012-02-08 at 07:33 -0700, dann frazier wrote:
> In the meantime, if anyone wants to get the website working on apache2
> for the remainder of the system's lifetime, please let me know.
> 
I can probably do that.  At least the static part, since I run a bunch
of apache 2 websites on my hosted system.

I've enabled it and put it up ... but it uses some type of server side
scripting which I need to enable in the apache mods, so it's not
entirely functional yet.

James


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On Sun, 2012-02-12 at 08:38 -0600, James Bottomley wrote:
> On Wed, 2012-02-08 at 07:33 -0700, dann frazier wrote:
> > In the meantime, if anyone wants to get the website working on apache2
> > for the remainder of the system's lifetime, please let me know.
> > 
> I can probably do that.  At least the static part, since I run a bunch
> of apache 2 websites on my hosted system.
> 
> I've enabled it and put it up ... but it uses some type of server side
> scripting which I need to enable in the apache mods, so it's not
> entirely functional yet.

OK, done and up.

it was using SSI ... I haven't seen that for at least 20 years ...

James


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On Sun, 2012-02-12 at 08:49 -0600, James Bottomley wrote:
> On Sun, 2012-02-12 at 08:38 -0600, James Bottomley wrote:
> > On Wed, 2012-02-08 at 07:33 -0700, dann frazier wrote:
> > > In the meantime, if anyone wants to get the website working on apache2
> > > for the remainder of the system's lifetime, please let me know.
> > > 
> > I can probably do that.  At least the static part, since I run a bunch
> > of apache 2 websites on my hosted system.
> > 
> > I've enabled it and put it up ... but it uses some type of server side
> > scripting which I need to enable in the apache mods, so it's not
> > entirely functional yet.
> 
> OK, done and up.
> 
> it was using SSI ... I haven't seen that for at least 20 years ...

I think I'm done.  I've got the three sites
{www,ftp,hwdb}.parisc-linux.org up and running.  There aren't any more,
are there (wiki seems to be eisee)?  Could someone also check the links
to see that nothing's broken.

Thanks,

James


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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: decommissioning parisc-linux.org
Date: Sun, 12 Feb 2012 17:47:04 -0500
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On Sun, Feb 12, 2012 at 3:01 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Sun, 2012-02-12 at 08:49 -0600, James Bottomley wrote:
>> On Sun, 2012-02-12 at 08:38 -0600, James Bottomley wrote:
>> > On Wed, 2012-02-08 at 07:33 -0700, dann frazier wrote:
>> > > In the meantime, if anyone wants to get the website working on a=
pache2
>> > > for the remainder of the system's lifetime, please let me know.
>> > >
>> > I can probably do that. =A0At least the static part, since I run a=
 bunch
>> > of apache 2 websites on my hosted system.
>> >
>> > I've enabled it and put it up ... but it uses some type of server =
side
>> > scripting which I need to enable in the apache mods, so it's not
>> > entirely functional yet.
>>
>> OK, done and up.
>>
>> it was using SSI ... I haven't seen that for at least 20 years ...
>
> I think I'm done. =A0I've got the three sites
> {www,ftp,hwdb}.parisc-linux.org up and running. =A0There aren't any m=
ore,
> are there (wiki seems to be eisee)? =A0Could someone also check the l=
inks
> to see that nothing's broken.

I did a quick check and everything seems to be working!

Thanks!

Cheers,
Carlos.
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From - Thu Nov 08 21:07:55 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: decommissioning parisc-linux.org
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	dann frazier <dannf@dannf.org>, linux-parisc@vger.kernel.org,
	taggart@lackof.org, bame@riverrock.org
To: "Carlos O'Donell" <carlos@systemhalted.org>
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On 12-Feb-12, at 5:47 PM, Carlos O'Donell wrote:

> On Sun, Feb 12, 2012 at 3:01 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
>> On Sun, 2012-02-12 at 08:49 -0600, James Bottomley wrote:
>>> On Sun, 2012-02-12 at 08:38 -0600, James Bottomley wrote:
>>>> On Wed, 2012-02-08 at 07:33 -0700, dann frazier wrote:
>>>>> In the meantime, if anyone wants to get the website working on  
>>>>> apache2
>>>>> for the remainder of the system's lifetime, please let me know.
>>>>>
>>>> I can probably do that.  At least the static part, since I run a  
>>>> bunch
>>>> of apache 2 websites on my hosted system.
>>>>
>>>> I've enabled it and put it up ... but it uses some type of server  
>>>> side
>>>> scripting which I need to enable in the apache mods, so it's not
>>>> entirely functional yet.
>>>
>>> OK, done and up.
>>>
>>> it was using SSI ... I haven't seen that for at least 20 years ...
>>
>> I think I'm done.  I've got the three sites
>> {www,ftp,hwdb}.parisc-linux.org up and running.  There aren't any  
>> more,
>> are there (wiki seems to be eisee)?  Could someone also check the  
>> links
>> to see that nothing's broken.
>
> I did a quick check and everything seems to be working!
>

Fantastic!  Deserves a note on PA-RISC news.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:07:55 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
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On Sun, Feb 12, 2012 at 5:56 PM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
> Fantastic! =A0Deserves a note on PA-RISC news.

OK, I've checked in an update to index.x with a new news entry, however=
=2E..

I'm not part of the webadmin group and therefore I can't update the web=
site.

Cheers,
Carlos.
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On Sun, Feb 12, 2012 at 12:01 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Sun, 2012-02-12 at 08:49 -0600, James Bottomley wrote:
>> On Sun, 2012-02-12 at 08:38 -0600, James Bottomley wrote:
>> > On Wed, 2012-02-08 at 07:33 -0700, dann frazier wrote:
>> > > In the meantime, if anyone wants to get the website working on a=
pache2
>> > > for the remainder of the system's lifetime, please let me know.
>> > >
>> > I can probably do that. =C2=A0At least the static part, since I ru=
n a bunch
>> > of apache 2 websites on my hosted system.
>> >
>> > I've enabled it and put it up ... but it uses some type of server =
side
>> > scripting which I need to enable in the apache mods, so it's not
>> > entirely functional yet.
>>
>> OK, done and up.
>>
>> it was using SSI ... I haven't seen that for at least 20 years ...
>
> I think I'm done. =C2=A0I've got the three sites
> {www,ftp,hwdb}.parisc-linux.org up and running. =C2=A0There aren't an=
y more,
> are there (wiki seems to be eisee)?

James,
=46irst, thanks for resurrecting the services for the parisc-linux.org =
domain.

Will ssh accounts be resurrected? I can provide a new SSH public key
if necessary/preferred. It's been a convenient place for me to park
any PA-RISC documents that I stumble across on the web.

Dann/Matt,
DNS entry for iou.parisc-linux.org can be killed if it hasn't been
yet. That used to point to gsyprf11.external.hp.com which was
decommission last year.

cheers,
grant
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: decommissioning parisc-linux.org
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To: Grant Grundler <grantgrundler@gmail.com>
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On Sun, 2012-02-12 at 20:05 -0800, Grant Grundler wrote:
> On Sun, Feb 12, 2012 at 12:01 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> > On Sun, 2012-02-12 at 08:49 -0600, James Bottomley wrote:
> >> On Sun, 2012-02-12 at 08:38 -0600, James Bottomley wrote:
> >> > On Wed, 2012-02-08 at 07:33 -0700, dann frazier wrote:
> >> > > In the meantime, if anyone wants to get the website working on apache2
> >> > > for the remainder of the system's lifetime, please let me know.
> >> > >
> >> > I can probably do that.  At least the static part, since I run a bunch
> >> > of apache 2 websites on my hosted system.
> >> >
> >> > I've enabled it and put it up ... but it uses some type of server side
> >> > scripting which I need to enable in the apache mods, so it's not
> >> > entirely functional yet.
> >>
> >> OK, done and up.
> >>
> >> it was using SSI ... I haven't seen that for at least 20 years ...
> >
> > I think I'm done.  I've got the three sites
> > {www,ftp,hwdb}.parisc-linux.org up and running.  There aren't any more,
> > are there (wiki seems to be eisee)?
> 
> James,
> First, thanks for resurrecting the services for the parisc-linux.org domain.

You're welcome.

> Will ssh accounts be resurrected?

Um, I don't think they've ever been revoked. Otherwise I wouldn't have
been able to log into palinux and fix stuff.

James


>  I can provide a new SSH public key
> if necessary/preferred. It's been a convenient place for me to park
> any PA-RISC documents that I stumble across on the web.
> 
> Dann/Matt,
> DNS entry for iou.parisc-linux.org can be killed if it hasn't been
> yet. That used to point to gsyprf11.external.hp.com which was
> decommission last year.
> 
> cheers,
> grant
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html


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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: decommissioning parisc-linux.org
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Cc: John David Anglin <dave.anglin@bell.net>,
	dann frazier <dannf@dannf.org>, linux-parisc@vger.kernel.org,
	taggart@lackof.org, bame@riverrock.org,
	Thibaut VARENE <T-Bone@parisc-linux.org>
To: Carlos O'Donell <carlos@systemhalted.org>
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On Sun, 2012-02-12 at 21:22 -0500, Carlos O'Donell wrote:
> On Sun, Feb 12, 2012 at 5:56 PM, John David Anglin <dave.anglin@bell.net> wrote:
> > Fantastic!  Deserves a note on PA-RISC news.
> 
> OK, I've checked in an update to index.x with a new news entry, however...
> 
> I'm not part of the webadmin group and therefore I can't update the website.

You are now.

James


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From: Thibaut VARENE <T-Bone@parisc-linux.org>
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Subject: Re: decommissioning parisc-linux.org
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On Sun, Feb 12, 2012 at 9:01 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Sun, 2012-02-12 at 08:49 -0600, James Bottomley wrote:

>> > I've enabled it and put it up ... but it uses some type of server =
side
>> > scripting which I need to enable in the apache mods, so it's not
>> > entirely functional yet.
>>
>> OK, done and up.
>>
>> it was using SSI ... I haven't seen that for at least 20 years ...
>
> I think I'm done. =C2=A0I've got the three sites
> {www,ftp,hwdb}.parisc-linux.org up and running. =C2=A0There aren't an=
y more,
> are there (wiki seems to be eisee)? =C2=A0Could someone also check th=
e links
> to see that nothing's broken.

Hi James,

Thanks for your help! The only thing that seems to be missing is
userdir support ("a2enmod userdir" should fix it)

Cheers,
T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On Sun, Feb 12, 2012 at 5:56 PM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
>> I did a quick check and everything seems to be working!
>
> Fantastic! =A0Deserves a note on PA-RISC news.

The website has been updated with a new news entry :-)

Cheers,
Carlos.
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From: Matt Fleming <matt@console-pimps.org>
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Subject: [PATCH 25/40] parisc: Use set_current_blocked() and block_sigmask()
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Cc: Oleg Nesterov <oleg@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>,
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	Matt Fleming <matt.fleming@intel.com>,
	Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
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From: Matt Fleming <matt.fleming@intel.com>

As described in e6fa16ab ("signal: sigprocmask() should do
retarget_shared_pending()") the modification of current->blocked is
incorrect as we need to check whether the signal we're about to block
is pending in the shared queue.

Also, use the new helper function introduced in commit 5e6292c0f28f
("signal: add block_sigmask() for adding sigmask to current->blocked")
which centralises the code for updating current->blocked after
successfully delivering a signal and reduces the amount of duplicate
code across architectures. In the past some architectures got this
code wrong, so using this helper function should stop that from
happening again.

Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/parisc/kernel/signal.c |   12 ++----------
 1 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 12c1ed3..bd36152 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -131,10 +131,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
 	}
 		
 	sigdelsetmask(&set, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = set;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
+	set_current_blocked(&set);
 
 	/* Good thing we saved the old gr[30], eh? */
 #ifdef CONFIG_64BIT
@@ -454,12 +451,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
 	if (!setup_rt_frame(sig, ka, info, oldset, regs, in_syscall))
 		return 0;
 
-	spin_lock_irq(&current->sighand->siglock);
-	sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
-	if (!(ka->sa.sa_flags & SA_NODEFER))
-		sigaddset(&current->blocked,sig);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
+	block_sigmask(ka, sig);
 
 	tracehook_signal_handler(sig, info, ka, regs, 
 		test_thread_flag(TIF_SINGLESTEP) ||
-- 
1.7.4.4


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From: Thibaut VARENE <T-Bone@parisc-linux.org>
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Subject: Re: decommissioning parisc-linux.org
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To: James Bottomley <James.Bottomley@hansenpartnership.com>
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On Mon, Feb 13, 2012 at 12:23 PM, Thibaut VARENE
<T-Bone@parisc-linux.org> wrote:
> On Sun, Feb 12, 2012 at 9:01 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
>> On Sun, 2012-02-12 at 08:49 -0600, James Bottomley wrote:
>
>>> > I've enabled it and put it up ... but it uses some type of server=
 side
>>> > scripting which I need to enable in the apache mods, so it's not
>>> > entirely functional yet.
>>>
>>> OK, done and up.
>>>
>>> it was using SSI ... I haven't seen that for at least 20 years ...
>>
>> I think I'm done. =C2=A0I've got the three sites
>> {www,ftp,hwdb}.parisc-linux.org up and running. =C2=A0There aren't a=
ny more,
>> are there (wiki seems to be eisee)? =C2=A0Could someone also check t=
he links
>> to see that nothing's broken.
>
> Hi James,
>
> Thanks for your help! The only thing that seems to be missing is
> userdir support ("a2enmod userdir" should fix it)

Just remembered I have admin access to palinux so I took care of
enabling userdirs. Sorry for not realizing this sooner ;P

HTH
T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From: dann frazier <dannf@dannf.org>
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Subject: Re: decommissioning parisc-linux.org
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Cc: Thibaut VARENE <varenet@parisc-linux.org>,
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	taggart@lackof.org, bame@riverrock.org,
	Carlos O'Donell <carlos@systemhalted.org>
To: John David Anglin <dave.anglin@bell.net>
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On Sat, Feb 11, 2012 at 02:11:30PM -0500, John David Anglin wrote:
> On 9-Feb-12, at 12:55 PM, dann frazier wrote:
> 
> >Well, we have apache2 installed from lenny now - it just isn't serving
> >anything useful :)
> >
> 
> I don't know much about about web page setup, so I can't be much
> help for this.
> 
> >>I believe it would be useful to keep the site going until we see if
> >>restarting buildd will
> >>fly or not given the current level of improvement.
> >
> >I am supportive of the site continuing to self-host, and I realize
> >that means it needs to run devel bits. But, there's two separate
> >issues I see there.
> >
> >1) We need to bridge the gap between now and then. Even if we had a
> >   buildd online today, just grinding through the necessary backlog
> >   would take weeks.
> 
> Yes, I have been working on bridging the gap manually since last
> summer.  I now have 5829 debs in my unstable archive.  Generally, things
> have gotten easier as system stability has improved and bugs were
> fixed.  It is a big job but I've done it in my spare time.
> 
> >2) I won't have time to be the principle admin for a system running
> >   unstable. I'm happy to help here & there, and w/ whatever
> >   transition ends up happening, but things like manually
> >   patching/fixing kernels, monitoring security updates and how they
> >   impact our bits, etc. Its a lot of work just for managing a single
> >   host.
> >
> >For 1) I think the right answer is to move services to a new
> >stable/secure host for the time being and shut the existing machine
> >down. We can retain the option of moving things back once the unstable
> >port is in full force. As a side benefit, such a migration should also
> >help get the existing services running w/ newer packages
> >(e.g. apache2) and allow us cleanly transition services over w/
> >minimal downtime (demonstrate a working system first, then update DNS
> >records). Who knows how painful it will be to go from pre-lenny to sid
> >all at once.
> >
> >2) can be solved by moving the domain to someone else's
> >infrastructure, or having a trusted volunteer to be the primary
> >admin for the system.
> 
> 
> I need to update a few more packages before magnum is ready for buildd.
> 
> Thibaut offered to setup the buildd but doesn't have a lot of free
> time.  I'm
> willing to do general system admin and monitoring the build system,
> but Thibaut  has to be in charge.  I'm hoping that Carlos is still
> willing to help
> with uploads, and to try to get his current patches into the debian
> eglibc 2.13
> patch set.  Otherwise, we may have to have a separate patch set.
> 
> I think ESIEE is the logical host site.  Magnum will be moved to an
> "open" IP
> when it's ready to start building.  It will require careful
> firewalling at that time.
> 
> No objection to moving the current buildd to magnum.  I guess the
> security
> updates are the biggest issue.  Once the buildd is running, we can
> work on
> transitioning to a final release.

All of the above sounds like good progress. However, it still leaves the
parisc-linux.org machine running an unsupported OS for an undefined
amount of time. During that time, this box will either need to be
shutoff, or manually patched to avoid HP audit scans (or, worse yet,
actual exploits). If the plan is to migrate this system to the
debian-ports unstable archive when it becomes available, we'll need
someone to maintain that install as well.
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From - Thu Nov 08 21:07:56 2018
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From: dann frazier <dannf@dannf.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: decommissioning parisc-linux.org
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
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	bame@riverrock.org
To: Grant Grundler <grantgrundler@gmail.com>
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On Sun, Feb 12, 2012 at 08:05:37PM -0800, Grant Grundler wrote:
> Dann/Matt,
> DNS entry for iou.parisc-linux.org can be killed if it hasn't been
> yet. That used to point to gsyprf11.external.hp.com which was
> decommission last year.

Matt - can you handle that?
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From: dann frazier <dannf@dannf.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: decommissioning parisc-linux.org
Date: Tue, 14 Feb 2012 11:06:50 -0700
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Sun, Feb 12, 2012 at 02:01:42PM -0600, James Bottomley wrote:
> On Sun, 2012-02-12 at 08:49 -0600, James Bottomley wrote:
> > On Sun, 2012-02-12 at 08:38 -0600, James Bottomley wrote:
> > > On Wed, 2012-02-08 at 07:33 -0700, dann frazier wrote:
> > > > In the meantime, if anyone wants to get the website working on apache2
> > > > for the remainder of the system's lifetime, please let me know.
> > > > 
> > > I can probably do that.  At least the static part, since I run a bunch
> > > of apache 2 websites on my hosted system.
> > > 
> > > I've enabled it and put it up ... but it uses some type of server side
> > > scripting which I need to enable in the apache mods, so it's not
> > > entirely functional yet.
> > 
> > OK, done and up.
> > 
> > it was using SSI ... I haven't seen that for at least 20 years ...
> 
> I think I'm done.  I've got the three sites
> {www,ftp,hwdb}.parisc-linux.org up and running.  There aren't any more,
> are there (wiki seems to be eisee)?  Could someone also check the links
> to see that nothing's broken.

Good work!
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From - Thu Nov 08 21:07:56 2018
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From: Thibaut VARENE <T-Bone@parisc-linux.org>
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Subject: Re: decommissioning parisc-linux.org
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Cc: John David Anglin <dave.anglin@bell.net>,
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	"Carlos O'Donell" <carlos@systemhalted.org>
To: dann frazier <dannf@dannf.org>
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On Tue, Feb 14, 2012 at 7:05 PM, dann frazier <dannf@dannf.org> wrote:
> On Sat, Feb 11, 2012 at 02:11:30PM -0500, John David Anglin wrote:
>> On 9-Feb-12, at 12:55 PM, dann frazier wrote:


>> >For 1) I think the right answer is to move services to a new
>> >stable/secure host for the time being and shut the existing machine
>> >down. We can retain the option of moving things back once the unsta=
ble
>> >port is in full force. As a side benefit, such a migration should a=
lso
>> >help get the existing services running w/ newer packages
>> >(e.g. apache2) and allow us cleanly transition services over w/
>> >minimal downtime (demonstrate a working system first, then update D=
NS
>> >records). Who knows how painful it will be to go from pre-lenny to =
sid
>> >all at once.
>> >
>> >2) can be solved by moving the domain to someone else's
>> >infrastructure, or having a trusted volunteer to be the primary
>> >admin for the system.
>>
>>
>> I need to update a few more packages before magnum is ready for buil=
dd.
>>
>> Thibaut offered to setup the buildd but doesn't have a lot of free
>> time. =C2=A0I'm
>> willing to do general system admin and monitoring the build system,
>> but Thibaut =C2=A0has to be in charge. =C2=A0I'm hoping that Carlos =
is still
>> willing to help
>> with uploads, and to try to get his current patches into the debian
>> eglibc 2.13
>> patch set. =C2=A0Otherwise, we may have to have a separate patch set=
=2E
>>
>> I think ESIEE is the logical host site. =C2=A0Magnum will be moved t=
o an
>> "open" IP
>> when it's ready to start building. =C2=A0It will require careful
>> firewalling at that time.
>>
>> No objection to moving the current buildd to magnum. =C2=A0I guess t=
he
>> security
>> updates are the biggest issue. =C2=A0Once the buildd is running, we =
can
>> work on
>> transitioning to a final release.
>
> All of the above sounds like good progress. However, it still leaves =
the
> parisc-linux.org machine running an unsupported OS for an undefined
> amount of time. During that time, this box will either need to be
> shutoff, or manually patched to avoid HP audit scans (or, worse yet,
> actual exploits). If the plan is to migrate this system to the
> debian-ports unstable archive when it becomes available, we'll need
> someone to maintain that install as well.

It looks to me like this burden clearly outweighs the benefits of
being selfhosted, so maybe the right move is to use a supported
architecture for hosting the website? Given the "audience" for
linux-parisc, I don't think it would make a significant difference...

my 2c.
T-Bone


--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From - Thu Nov 08 21:07:56 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: decommissioning parisc-linux.org
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On Tue, Feb 14, 2012 at 1:31 PM, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> It looks to me like this burden clearly outweighs the benefits of
> being selfhosted, so maybe the right move is to use a supported
> architecture for hosting the website? Given the "audience" for
> linux-parisc, I don't think it would make a significant difference...

I tend to agree. Use the right tool for the right job.

Fun hacking = HPPA.

Serve the website = x86.

Cheers,
Carlos.
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From - Thu Nov 08 21:07:56 2018
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From: Rusty Russell <rusty@rustcorp.com.au>
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Subject: [PATCH 5/12] arch/parisc: remove references to cpu_*_map.
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
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From: Rusty Russell <rusty@rustcorp.com.au>

This has been obsolescent for a while; time for the final push.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/smp.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -291,8 +291,7 @@ smp_cpu_init(int cpunum)
 	mb();
 
 	/* Well, support 2.4 linux scheme as well. */
-	if (cpu_isset(cpunum, cpu_online_map))
-	{
+	if (cpu_online(cpunum))	{
 		extern void machine_halt(void); /* arch/parisc.../process.c */
 
 		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);


From - Thu Nov 08 21:07:57 2018
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On 02/15/2012 10:28 AM, Rusty Russell wrote:

> From: Rusty Russell <rusty@rustcorp.com.au>
> 
> This has been obsolescent for a while; time for the final push.
> 
> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: Helge Deller <deller@gmx.de>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: linux-parisc@vger.kernel.org
> ---


Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>

Regards,
Srivatsa S. Bhat

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From: Rusty Russell <rusty@rustcorp.com.au>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 1/5] remove references to cpu_*_map in arch/
Date: Thu, 16 Feb 2012 14:21:26 +1030
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Cc: linux-mips@linux-mips.org, linux-sh@vger.kernel.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Paul Mackerras <paulus@samba.org>, sparclinux@vger.kernel.org,
 Russell King <linux@arm.linux.org.uk>, linux-hexagon@vger.kernel.org,
 Helge Deller <deller@gmx.de>, "James E.J. Bottomley" <jejb@parisc-linux.org>,
 user-mode-linux-devel@lists.sourceforge.net, Jeff Dike <jdike@addtoit.com>,
 Chris Metcalf <cmetcalf@tilera.com>,
 user-mode-linux-user@lists.sourceforge.net,
 linux-arm-kernel@lists.infradead.org, linux-parisc@vger.kernel.org,
 Ralf Baechle <ralf@linux-mips.org>, Richard Kuo <rkuo@codeaurora.org>,
 Kyle McMartin <kyle@mcmartin.ca>, Paul Mundt <lethal@linux-sh.org>,
 Richard Weinberger <richard@nod.at>, Andrew Morton <akpm@linux-foundation.org>,
 linuxppc-dev@lists.ozlabs.org, "David S. Miller" <davem@davemloft.net>
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From: Rusty Russell <rusty@rustcorp.com.au>

This has been obsolescent for a while; time for the final push.

In adjacent context, replaced old cpus_* with cpumask_*.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: David S. Miller <davem@davemloft.net> (arch/sparc)
Acked-by: Chris Metcalf <cmetcalf@tilera.com> (arch/tile)
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: linux-hexagon@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
---
 arch/arm/kernel/kprobes.c           |    4 ++--
 arch/arm/kernel/smp.c               |    7 ++++---
 arch/hexagon/kernel/smp.c           |    8 ++++----
 arch/mips/cavium-octeon/smp.c       |    2 +-
 arch/mips/kernel/mips-mt-fpaff.c    |    2 +-
 arch/mips/kernel/proc.c             |    2 +-
 arch/mips/kernel/smp-bmips.c        |    2 +-
 arch/mips/kernel/smp.c              |   27 ++++++++++++---------------
 arch/mips/kernel/smtc.c             |    2 +-
 arch/mips/mm/c-octeon.c             |    6 +++---
 arch/mips/netlogic/common/smp.c     |    6 +++---
 arch/mips/pmc-sierra/yosemite/smp.c |    6 +++---
 arch/mips/sgi-ip27/ip27-smp.c       |    2 +-
 arch/mips/sibyte/bcm1480/smp.c      |    5 ++---
 arch/mips/sibyte/sb1250/smp.c       |    7 +++----
 arch/parisc/kernel/smp.c            |    3 +--
 arch/powerpc/platforms/wsp/smp.c    |    2 +-
 arch/sh/kernel/smp.c                |    2 +-
 arch/sh/kernel/topology.c           |    2 +-
 arch/sparc/kernel/leon_kernel.c     |    6 +++---
 arch/tile/kernel/setup.c            |    6 +++---
 arch/um/kernel/skas/process.c       |    2 +-
 arch/um/kernel/smp.c                |    9 ++++-----
 23 files changed, 57 insertions(+), 63 deletions(-)

diff --git a/arch/arm/kernel/kprobes.c b/arch/arm/kernel/kprobes.c
--- a/arch/arm/kernel/kprobes.c
+++ b/arch/arm/kernel/kprobes.c
@@ -127,7 +127,7 @@ void __kprobes arch_arm_kprobe(struct kp
 		flush_insns(addr, sizeof(u16));
 	} else if (addr & 2) {
 		/* A 32-bit instruction spanning two words needs special care */
-		stop_machine(set_t32_breakpoint, (void *)addr, &cpu_online_map);
+		stop_machine(set_t32_breakpoint, (void *)addr, cpu_online_mask);
 	} else {
 		/* Word aligned 32-bit instruction can be written atomically */
 		u32 bkp = KPROBE_THUMB32_BREAKPOINT_INSTRUCTION;
@@ -190,7 +190,7 @@ int __kprobes __arch_disarm_kprobe(void 
 
 void __kprobes arch_disarm_kprobe(struct kprobe *p)
 {
-	stop_machine(__arch_disarm_kprobe, p, &cpu_online_map);
+	stop_machine(__arch_disarm_kprobe, p, cpu_online_mask);
 }
 
 void __kprobes arch_remove_kprobe(struct kprobe *p)
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -359,7 +359,7 @@ void __init smp_prepare_cpus(unsigned in
 		 * re-initialize the map in platform_smp_prepare_cpus() if
 		 * present != possible (e.g. physical hotplug).
 		 */
-		init_cpu_present(&cpu_possible_map);
+		init_cpu_present(cpu_possible_mask);
 
 		/*
 		 * Initialise the SCU if there are more than one CPU
@@ -577,8 +577,9 @@ void smp_send_stop(void)
 	unsigned long timeout;
 
 	if (num_online_cpus() > 1) {
-		cpumask_t mask = cpu_online_map;
-		cpu_clear(smp_processor_id(), mask);
+		struct cpumask mask;
+		cpumask_copy(&mask, cpu_online_mask);
+		cpumask_clear_cpu(smp_processor_id(), &mask);
 
 		smp_cross_call(&mask, IPI_CPU_STOP);
 	}
diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
--- a/arch/hexagon/kernel/smp.c
+++ b/arch/hexagon/kernel/smp.c
@@ -36,7 +36,7 @@
 #define BASE_IPI_IRQ 26
 
 /*
- * cpu_possible_map needs to be filled out prior to setup_per_cpu_areas
+ * cpu_possible_mask needs to be filled out prior to setup_per_cpu_areas
  * (which is prior to any of our smp_prepare_cpu crap), in order to set
  * up the...  per_cpu areas.
  */
@@ -211,7 +211,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
 	stack_start =  ((void *) thread) + THREAD_SIZE;
 	__vmstart(start_secondary, stack_start);
 
-	while (!cpu_isset(cpu, cpu_online_map))
+	while (!cpu_online(cpu))
 		barrier();
 
 	return 0;
@@ -232,7 +232,7 @@ void __init smp_prepare_cpus(unsigned in
 
 	/*  Right now, let's just fake it. */
 	for (i = 0; i < max_cpus; i++)
-		cpu_set(i, cpu_present_map);
+		set_cpu_present(i, true);
 
 	/*  Also need to register the interrupts for IPI  */
 	if (max_cpus > 1)
@@ -272,5 +272,5 @@ void smp_start_cpus(void)
 	int i;
 
 	for (i = 0; i < NR_CPUS; i++)
-		cpu_set(i, cpu_possible_map);
+		set_cpu_possible(i, true);
 }
diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c
--- a/arch/mips/cavium-octeon/smp.c
+++ b/arch/mips/cavium-octeon/smp.c
@@ -268,7 +268,7 @@ static int octeon_cpu_disable(void)
 
 	spin_lock(&smp_reserve_lock);
 
-	cpu_clear(cpu, cpu_online_map);
+	set_cpu_online(cpu, false);
 	cpu_clear(cpu, cpu_callin_map);
 	local_irq_disable();
 	fixup_irqs();
diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c
--- a/arch/mips/kernel/mips-mt-fpaff.c
+++ b/arch/mips/kernel/mips-mt-fpaff.c
@@ -173,7 +173,7 @@ asmlinkage long mipsmt_sys_sched_getaffi
 	if (retval)
 		goto out_unlock;
 
-	cpus_and(mask, p->thread.user_cpus_allowed, cpu_possible_map);
+	cpumask_and(&mask, &p->thread.user_cpus_allowed, cpu_possible_mask);
 
 out_unlock:
 	read_unlock(&tasklist_lock);
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -25,7 +25,7 @@ static int show_cpuinfo(struct seq_file 
 	int i;
 
 #ifdef CONFIG_SMP
-	if (!cpu_isset(n, cpu_online_map))
+	if (!cpu_online(n))
 		return 0;
 #endif
 
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -319,7 +319,7 @@ static int bmips_cpu_disable(void)
 
 	pr_info("SMP: CPU%d is offline\n", cpu);
 
-	cpu_clear(cpu, cpu_online_map);
+	set_cpu_online(cpu, false);
 	cpu_clear(cpu, cpu_callin_map);
 
 	local_flush_tlb_all();
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -148,7 +148,7 @@ static void stop_this_cpu(void *dummy)
 	/*
 	 * Remove this CPU:
 	 */
-	cpu_clear(smp_processor_id(), cpu_online_map);
+	set_cpu_online(smp_processor_id(), false);
 	for (;;) {
 		if (cpu_wait)
 			(*cpu_wait)();		/* Wait if available. */
@@ -174,7 +174,7 @@ void __init smp_prepare_cpus(unsigned in
 	mp_ops->prepare_cpus(max_cpus);
 	set_cpu_sibling_map(0);
 #ifndef CONFIG_HOTPLUG_CPU
-	init_cpu_present(&cpu_possible_map);
+	init_cpu_present(cpu_possible_mask);
 #endif
 }
 
@@ -248,7 +248,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
 	while (!cpu_isset(cpu, cpu_callin_map))
 		udelay(100);
 
-	cpu_set(cpu, cpu_online_map);
+	set_cpu_online(cpu, true);
 
 	return 0;
 }
@@ -320,13 +320,12 @@ void flush_tlb_mm(struct mm_struct *mm)
 	if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
 		smp_on_other_tlbs(flush_tlb_mm_ipi, mm);
 	} else {
-		cpumask_t mask = cpu_online_map;
 		unsigned int cpu;
 
-		cpu_clear(smp_processor_id(), mask);
-		for_each_cpu_mask(cpu, mask)
-			if (cpu_context(cpu, mm))
+		for_each_online_cpu(cpu) {
+			if (cpu != smp_processor_id() && cpu_context(cpu, mm))
 				cpu_context(cpu, mm) = 0;
+		}
 	}
 	local_flush_tlb_mm(mm);
 
@@ -360,13 +359,12 @@ void flush_tlb_range(struct vm_area_stru
 
 		smp_on_other_tlbs(flush_tlb_range_ipi, &fd);
 	} else {
-		cpumask_t mask = cpu_online_map;
 		unsigned int cpu;
 
-		cpu_clear(smp_processor_id(), mask);
-		for_each_cpu_mask(cpu, mask)
-			if (cpu_context(cpu, mm))
+		for_each_online_cpu(cpu) {
+			if (cpu != smp_processor_id() && cpu_context(cpu, mm))
 				cpu_context(cpu, mm) = 0;
+		}
 	}
 	local_flush_tlb_range(vma, start, end);
 	preempt_enable();
@@ -407,13 +405,12 @@ void flush_tlb_page(struct vm_area_struc
 
 		smp_on_other_tlbs(flush_tlb_page_ipi, &fd);
 	} else {
-		cpumask_t mask = cpu_online_map;
 		unsigned int cpu;
 
-		cpu_clear(smp_processor_id(), mask);
-		for_each_cpu_mask(cpu, mask)
-			if (cpu_context(cpu, vma->vm_mm))
+		for_each_online_cpu(cpu) {
+			if (cpu != smp_processor_id() && cpu_context(cpu, vma->vm_mm))
 				cpu_context(cpu, vma->vm_mm) = 0;
+		}
 	}
 	local_flush_tlb_page(vma, page);
 	preempt_enable();
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -292,7 +292,7 @@ static void smtc_configure_tlb(void)
  * possibly leave some TCs/VPEs as "slave" processors.
  *
  * Use c0_MVPConf0 to find out how many TCs are available, setting up
- * cpu_possible_map and the logical/physical mappings.
+ * cpu_possible_mask and the logical/physical mappings.
  */
 
 int __init smtc_build_cpu_map(int start_cpu_slot)
diff --git a/arch/mips/mm/c-octeon.c b/arch/mips/mm/c-octeon.c
--- a/arch/mips/mm/c-octeon.c
+++ b/arch/mips/mm/c-octeon.c
@@ -81,9 +81,9 @@ static void octeon_flush_icache_all_core
 	if (vma)
 		mask = *mm_cpumask(vma->vm_mm);
 	else
-		mask = cpu_online_map;
-	cpu_clear(cpu, mask);
-	for_each_cpu_mask(cpu, mask)
+		mask = *cpu_online_mask;
+	cpumask_clear_cpu(cpu, &mask);
+	for_each_cpu(cpu, &mask)
 		octeon_send_ipi_single(cpu, SMP_ICACHE_FLUSH);
 
 	preempt_enable();
diff --git a/arch/mips/netlogic/common/smp.c b/arch/mips/netlogic/common/smp.c
--- a/arch/mips/netlogic/common/smp.c
+++ b/arch/mips/netlogic/common/smp.c
@@ -165,7 +165,7 @@ void __init nlm_smp_setup(void)
 	cpu_set(boot_cpu, phys_cpu_present_map);
 	__cpu_number_map[boot_cpu] = 0;
 	__cpu_logical_map[0] = boot_cpu;
-	cpu_set(0, cpu_possible_map);
+	set_cpu_possible(0, true);
 
 	num_cpus = 1;
 	for (i = 0; i < NR_CPUS; i++) {
@@ -177,14 +177,14 @@ void __init nlm_smp_setup(void)
 			cpu_set(i, phys_cpu_present_map);
 			__cpu_number_map[i] = num_cpus;
 			__cpu_logical_map[num_cpus] = i;
-			cpu_set(num_cpus, cpu_possible_map);
+			set_cpu_possible(num_cpus, true);
 			++num_cpus;
 		}
 	}
 
 	pr_info("Phys CPU present map: %lx, possible map %lx\n",
 		(unsigned long)phys_cpu_present_map.bits[0],
-		(unsigned long)cpu_possible_map.bits[0]);
+		(unsigned long)cpumask_bits(cpu_possible_mask)[0]);
 
 	pr_info("Detected %i Slave CPU(s)\n", num_cpus);
 	nlm_set_nmi_handler(nlm_boot_secondary_cpus);
diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c
--- a/arch/mips/pmc-sierra/yosemite/smp.c
+++ b/arch/mips/pmc-sierra/yosemite/smp.c
@@ -155,10 +155,10 @@ static void __init yos_smp_setup(void)
 {
 	int i;
 
-	cpus_clear(cpu_possible_map);
+	init_cpu_possible(cpu_none_mask);
 
 	for (i = 0; i < 2; i++) {
-		cpu_set(i, cpu_possible_map);
+		set_cpu_possible(i, true);
 		__cpu_number_map[i]	= i;
 		__cpu_logical_map[i]	= i;
 	}
@@ -169,7 +169,7 @@ static void __init yos_prepare_cpus(unsi
 	/*
 	 * Be paranoid.  Enable the IPI only if we're really about to go SMP.
 	 */
-	if (cpus_weight(cpu_possible_map))
+	if (num_possible_cpus())
 		set_c0_status(STATUSF_IP5);
 }
 
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -76,7 +76,7 @@ static int do_cpumask(cnodeid_t cnode, n
 			/* Only let it join in if it's marked enabled */
 			if ((acpu->cpu_info.flags & KLINFO_ENABLE) &&
 			    (tot_cpus_found != NR_CPUS)) {
-				cpu_set(cpuid, cpu_possible_map);
+				set_cpu_possible(cpuid, true);
 				alloc_cpupda(cpuid, tot_cpus_found);
 				cpus_found++;
 				tot_cpus_found++;
diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c
--- a/arch/mips/sibyte/bcm1480/smp.c
+++ b/arch/mips/sibyte/bcm1480/smp.c
@@ -147,14 +147,13 @@ static void __init bcm1480_smp_setup(voi
 {
 	int i, num;
 
-	cpus_clear(cpu_possible_map);
-	cpu_set(0, cpu_possible_map);
+	init_cpu_possible(cpumask_of(0));
 	__cpu_number_map[0] = 0;
 	__cpu_logical_map[0] = 0;
 
 	for (i = 1, num = 0; i < NR_CPUS; i++) {
 		if (cfe_cpu_stop(i) == 0) {
-			cpu_set(i, cpu_possible_map);
+			set_cpu_possible(i, true);
 			__cpu_number_map[i] = ++num;
 			__cpu_logical_map[num] = i;
 		}
diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c
--- a/arch/mips/sibyte/sb1250/smp.c
+++ b/arch/mips/sibyte/sb1250/smp.c
@@ -126,7 +126,7 @@ static void __cpuinit sb1250_boot_second
 
 /*
  * Use CFE to find out how many CPUs are available, setting up
- * cpu_possible_map and the logical/physical mappings.
+ * cpu_possible_mask and the logical/physical mappings.
  * XXXKW will the boot CPU ever not be physical 0?
  *
  * Common setup before any secondaries are started
@@ -135,14 +135,13 @@ static void __init sb1250_smp_setup(void
 {
 	int i, num;
 
-	cpus_clear(cpu_possible_map);
-	cpu_set(0, cpu_possible_map);
+	init_cpu_possible(cpumask_of(0));
 	__cpu_number_map[0] = 0;
 	__cpu_logical_map[0] = 0;
 
 	for (i = 1, num = 0; i < NR_CPUS; i++) {
 		if (cfe_cpu_stop(i) == 0) {
-			cpu_set(i, cpu_possible_map);
+			set_cpu_possible(i, true);
 			__cpu_number_map[i] = ++num;
 			__cpu_logical_map[num] = i;
 		}
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -291,8 +291,7 @@ smp_cpu_init(int cpunum)
 	mb();
 
 	/* Well, support 2.4 linux scheme as well. */
-	if (cpu_isset(cpunum, cpu_online_map))
-	{
+	if (cpu_online(cpunum))	{
 		extern void machine_halt(void); /* arch/parisc.../process.c */
 
 		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
diff --git a/arch/powerpc/platforms/wsp/smp.c b/arch/powerpc/platforms/wsp/smp.c
--- a/arch/powerpc/platforms/wsp/smp.c
+++ b/arch/powerpc/platforms/wsp/smp.c
@@ -71,7 +71,7 @@ int __devinit smp_a2_kick_cpu(int nr)
 
 static int __init smp_a2_probe(void)
 {
-	return cpus_weight(cpu_possible_map);
+	return num_possible_cpus();
 }
 
 static struct smp_ops_t a2_smp_ops = {
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -63,7 +63,7 @@ void __init smp_prepare_cpus(unsigned in
 	mp_ops->prepare_cpus(max_cpus);
 
 #ifndef CONFIG_HOTPLUG_CPU
-	init_cpu_present(&cpu_possible_map);
+	init_cpu_present(cpu_possible_mask);
 #endif
 }
 
diff --git a/arch/sh/kernel/topology.c b/arch/sh/kernel/topology.c
--- a/arch/sh/kernel/topology.c
+++ b/arch/sh/kernel/topology.c
@@ -27,7 +27,7 @@ static cpumask_t cpu_coregroup_map(unsig
 	 * Presently all SH-X3 SMP cores are multi-cores, so just keep it
 	 * simple until we have a method for determining topology..
 	 */
-	return cpu_possible_map;
+	return *cpu_possible_mask;
 }
 
 const struct cpumask *cpu_coregroup_mask(unsigned int cpu)
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -104,11 +104,11 @@ static int irq_choose_cpu(const struct c
 {
 	cpumask_t mask;
 
-	cpus_and(mask, cpu_online_map, *affinity);
-	if (cpus_equal(mask, cpu_online_map) || cpus_empty(mask))
+	cpumask_and(&mask, cpu_online_mask, affinity);
+	if (cpumask_equal(&mask, cpu_online_mask) || cpumask_empty(&mask))
 		return boot_cpu_id;
 	else
-		return first_cpu(mask);
+		return cpumask_first(&mask);
 }
 #else
 #define irq_choose_cpu(affinity) boot_cpu_id
diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
--- a/arch/tile/kernel/setup.c
+++ b/arch/tile/kernel/setup.c
@@ -1186,7 +1186,7 @@ static void __init setup_cpu_maps(void)
 			      sizeof(cpu_lotar_map));
 	if (rc < 0) {
 		pr_err("warning: no HV_INQ_TILES_LOTAR; using AVAIL\n");
-		cpu_lotar_map = cpu_possible_map;
+		cpu_lotar_map = *cpu_possible_mask;
 	}
 
 #if CHIP_HAS_CBOX_HOME_MAP()
@@ -1196,9 +1196,9 @@ static void __init setup_cpu_maps(void)
 			      sizeof(hash_for_home_map));
 	if (rc < 0)
 		early_panic("hv_inquire_tiles(HFH_CACHE) failed: rc %d\n", rc);
-	cpumask_or(&cpu_cacheable_map, &cpu_possible_map, &hash_for_home_map);
+	cpumask_or(&cpu_cacheable_map, cpu_possible_mask, &hash_for_home_map);
 #else
-	cpu_cacheable_map = cpu_possible_map;
+	cpu_cacheable_map = *cpu_possible_mask;
 #endif
 }
 
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c
--- a/arch/um/kernel/skas/process.c
+++ b/arch/um/kernel/skas/process.c
@@ -41,7 +41,7 @@ static int __init start_kernel_proc(void
 	cpu_tasks[0].pid = pid;
 	cpu_tasks[0].task = current;
 #ifdef CONFIG_SMP
-	cpu_online_map = cpumask_of_cpu(0);
+	init_cpu_online(get_cpu_mask(0));
 #endif
 	start_kernel();
 	return 0;
diff --git a/arch/um/kernel/smp.c b/arch/um/kernel/smp.c
--- a/arch/um/kernel/smp.c
+++ b/arch/um/kernel/smp.c
@@ -76,7 +76,7 @@ static int idle_proc(void *cpup)
 		cpu_relax();
 
 	notify_cpu_starting(cpu);
-	cpu_set(cpu, cpu_online_map);
+	set_cpu_online(cpu, true);
 	default_idle();
 	return 0;
 }
@@ -110,8 +110,7 @@ void smp_prepare_cpus(unsigned int maxcp
 	for (i = 0; i < ncpus; ++i)
 		set_cpu_possible(i, true);
 
-	cpu_clear(me, cpu_online_map);
-	cpu_set(me, cpu_online_map);
+	set_cpu_online(me, true);
 	cpu_set(me, cpu_callin_map);
 
 	err = os_pipe(cpu_data[me].ipi_pipe, 1, 1);
@@ -138,13 +137,13 @@ void smp_prepare_cpus(unsigned int maxcp
 
 void smp_prepare_boot_cpu(void)
 {
-	cpu_set(smp_processor_id(), cpu_online_map);
+	set_cpu_online(smp_processor_id(), true);
 }
 
 int __cpu_up(unsigned int cpu)
 {
 	cpu_set(cpu, smp_commenced_mask);
-	while (!cpu_isset(cpu, cpu_online_map))
+	while (!cpu_online(cpu))
 		mb();
 	return 0;
 }

From - Thu Nov 08 21:07:57 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Boot error using 3.2.1: swapper (pid 1): Illegal instruction
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>> On Tue, 2012-01-17 at 11:41 +0100, Rolf Eike Beer wrote:
>>> Machine is an Apollo 705, previous kernel version was 2.6.28. Any hints
>>> appreciated. Config attached.
>>
>> Best guess is that your init binary is incompatible with the hardware
>> architecture.  It has to be compiled for PA7000 to work on an Apollo
>> system.
>
> Using the same init with kernel 2.6.28 works fine.

I've upgraded the machine to 2.6.38.8 with
b54cd0d5053633373cd3c374aa203024cbf125a0 added and
c3f957a22eca106bd28136943305b390b4337ebf reverted. This makes me believe
that f311847c2fcebd81912e2f0caf8a461dec28db41 is the culprit. Maybe
something in the 32 bit code isn't HPPA 1.1 clean?

Eike
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From: Yinghai Lu <yinghai@kernel.org>
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Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    2 ++
 drivers/parisc/lba_pci.c |    3 +++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 7ff10c1..3f2e203 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -1014,7 +1014,9 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(bus, dino_current_bus, 255);
 	bus->subordinate = pci_scan_child_bus(bus);
+	pci_bus_update_busn_res_end(bus, bus->subordinate);
 
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index d5f3d75..b58bf8b 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1531,6 +1531,9 @@ lba_driver_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(lba_bus, lba_dev->hba.bus_num.start,
+				lba_dev->hba.bus_num.end);
+
 	lba_bus->subordinate = pci_scan_child_bus(lba_bus);
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
-- 
1.7.7


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From: Paul Gortmaker <paul.gortmaker@windriver.com>
Newsgroups: gmane.linux.kernel.next,gmane.linux.ports.parisc,gmane.linux.kernel
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Upstream commit e66eed651fd18a961f11cda62f3b5286c8cc4f9f

    "list: remove prefetching from regular list iterators"

removed <linux/prefetch.h> from <linux/list.h> very early in the
v3.0 dev cycle (v2.6.39-2-ge66eed6), thereby causing build failures
when it exposed the implicit prefetch users in parisc.

Reported-by: David Rientjes <rientjes@google.com>
Reported-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---

[ The parisc defconfig has been failing to build everywhere since
  last May!  http://kisskb.ellerman.id.au/kisskb/target/2059/   And this
  one liner fix https://lkml.org/lkml/2011/10/15/121 was reported last
  Oct, and again http://www.spinics.net/lists/linux-parisc/msg03945.html
  in early Feb.  So, now with a clear reasoning in the commit header as
  to why it fails, can we finally get this in tree please? ]

diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h
index a9c46cc..8c33491 100644
--- a/drivers/parisc/iommu-helpers.h
+++ b/drivers/parisc/iommu-helpers.h
@@ -1,3 +1,5 @@
+#include <linux/prefetch.h>
+
 /**
  * iommu_fill_pdir - Insert coalesced scatter/gather chunks into the I/O Pdir.
  * @ioc: The I/O Controller.
-- 
1.7.9.1


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From: Paul Gortmaker <paul.gortmaker@windriver.com>
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Subject: [PATCH] parisc: fix longstanding build failures for !CONFIG_PCI
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Upstream commit fea80311a939a746533a6d7e7c3183729d6a3faf

    "iomap: make IOPORT/PCI mapping functions conditional"

introduced an arch independent stub for pci_iounmap() but the
parisc had its own that was unconditionally built.  So builds
since v3.0-3553-gfea8031 have been failing with:

arch/parisc/lib/iomap.c:439:6: error: redefinition of 'pci_iounmap'
include/asm-generic/iomap.h:75:20: note: previous definition of 'pci_iounmap' was here

Making the parisc one specific to CONFIG_PCI fixes the problem.

CC: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---

[This fixes the linux-next builds that have been consistently failing
 since last July -- http://kisskb.ellerman.id.au/kisskb/target/2069/ ]

diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index fb8e10a..dc0a2c3 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -436,12 +436,15 @@ void ioport_unmap(void __iomem *addr)
 	}
 }
 
+#ifdef CONFIG_PCI
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
 	if (!INDIRECT_ADDR(addr)) {
 		iounmap(addr);
 	}
 }
+EXPORT_SYMBOL(pci_iounmap);
+#endif
 
 EXPORT_SYMBOL(ioread8);
 EXPORT_SYMBOL(ioread16);
@@ -461,4 +464,3 @@ EXPORT_SYMBOL(iowrite16_rep);
 EXPORT_SYMBOL(iowrite32_rep);
 EXPORT_SYMBOL(ioport_map);
 EXPORT_SYMBOL(ioport_unmap);
-EXPORT_SYMBOL(pci_iounmap);
-- 
1.7.9.1


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Subject: [PATCH] parisc: dont unconditionally override CROSS_COMPILE for 64 bit.
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Using the 64 bit toolchains from kernel.org[1], one finds that
you can't build the a500_defconfig, because the Makefile will
stomp whatever value you have in your env. for CROSS_COMPILE.

This shows up since the kernel.org toolchains for parisc-64
do not have the "-gnu" prefix, and so you run into it always
saying hppa64-linux-gnu-gcc not found, regardless of the fact
you've not got "-gnu" put anywhere into CROSS_COMPILE.

[1] ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.5.2/

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 55cca1d..cefff6d 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -31,7 +31,9 @@ ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
 WIDTH		:= 64
-CROSS_COMPILE	:= hppa64-linux-gnu-
+ifndef CROSS_COMPILE
+ CROSS_COMPILE	:= hppa64-linux-gnu-
+endif
 else # 32-bit
 WIDTH		:=
 endif
-- 
1.7.9.1


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On Sunday 26 February 2012 18:26:53 Paul Gortmaker wrote:
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
>
> -CROSS_COMPILE	:= hppa64-linux-gnu-
> +ifndef CROSS_COMPILE
> + CROSS_COMPILE	:= hppa64-linux-gnu-
> +endif

this should accomplish the same thing in practice:
	CROSS_COMPILE ?= hppa64-linux-gnu-
-mike

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[Re: [PATCH] parisc: dont unconditionally override CROSS_COMPILE for 64 bit.] On 26/02/2012 (Sun 19:23) Mike Frysinger wrote:

> On Sunday 26 February 2012 18:26:53 Paul Gortmaker wrote:
> > --- a/arch/parisc/Makefile
> > +++ b/arch/parisc/Makefile
> >
> > -CROSS_COMPILE	:= hppa64-linux-gnu-
> > +ifndef CROSS_COMPILE
> > + CROSS_COMPILE	:= hppa64-linux-gnu-
> > +endif
> 
> this should accomplish the same thing in practice:
> 	CROSS_COMPILE ?= hppa64-linux-gnu-

Good point, I'll wait for a bit in case I was missing something else
obvious, and then resend.

THanks,
P.

> -mike



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On 28-Jan-12, at 5:41 PM, Bjorn Helgaas wrote:

> On Sat, Jan 28, 2012 at 9:56 AM, Rolf Eike Beer <eike-kernel@sf- 
> tec.de> wrote:
>> Bjorn Helgaas wrote:
>>> I'm trying to test some PCI changes on a c3700, but recent kernels
>>> don't seem to work at all.  74ea15d909b311 (current upstream) and  
>>> v3.2
>>> both fail as shown below.  I'm using c3000_defconfig (attached for
>>> 74ea15d909b311).  Should I expect this to work?
>>
>> I don't know about 3.3x, but my C3600 runs using 3.2.1. Which  
>> binutils did you
>> use for building? IIRC there is a bunch of bugs in different  
>> versions.
>
> This is a Debian 5.0 box:
>
> c3700:~# gcc -v
> Using built-in specs.
> Target: hppa-linux-gnu
> Configured with: ../src/configure -v --with-pkgversion='Debian
> 4.3.2-1.1' --with-bugurl=file:///usr/share/doc/gcc-4.3/README.Bugs
> --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr
> --enable-shared --with-system-zlib --libexecdir=/usr/lib
> --without-included-gettext --enable-threads=posix --enable-nls
> --with-gxx-include-dir=/usr/include/c++/4.3 --program-suffix=-4.3
> --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc
> --enable-mpfr --disable-libssp --enable-checking=release
> --build=hppa-linux-gnu --host=hppa-linux-gnu --target=hppa-linux-gnu
> Thread model: posix
> gcc version 4.3.2 (Debian 4.3.2-1.1)
> c3700:~# ld -v
> GNU ld (GNU Binutils for Debian) 2.18.0.20080103
> c3700:~# as -v
> GNU assembler version 2.18.0 (hppa-linux-gnu) using BFD version (GNU
> Binutils for Debian) 2.18.0.20080103


I would say you should update both binutils and GCC.  The binutils  
fixes are
less critical but they do fix the unwind support.  There are many GCC  
fixes
since 4.3.2.  The delay slot handling in the 4.3 branch is somewhat  
broken.

You probably won't be able to build either binutils or GCC from Debian
unstable sources due to the dependency requirements.  I would suggest  
using
the current binutils and GCC sources directly.  GCC 4.6.2 is pretty  
solid as
far as I can tell.

Dave
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John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:07:58 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: HPPA64: Cannot write to ext4 filesystems with files > 28672 byte
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Recent kernels (>3.x) fail when writing to ext4 filesystems with the
message "file too large". The critical size is 28672 byte (7*2^12). This
has been traced down to ext4_max_size() by Tobias Ulmer, which looks like
this:

fs/ext4/super.c, comments stripped:

loff_t ext4_max_size(int blkbits, int has_huge_files)
{
	loff_t res;
	loff_t upper_limit = MAX_LFS_FILESIZE;

	if (!has_huge_files || sizeof(blkcnt_t) < sizeof(u64)) {
		upper_limit = (1LL << 32) - 1;

		upper_limit >>= (blkbits - 9);
		upper_limit <<= blkbits;
	}

	res = (1LL << 32) - 1;
	res <<= blkbits;

	if (res > upper_limit)
		res = upper_limit;

	return res;
}

The 64 assembler output using gcc for 64 bit looks like this:

0000000000000000 <ext4_max_size>:
   0:   37 de 00 80     ldo 40(sp),sp
   4:   8f 20 20 80     cmpib,<> 0,r25,4c <ext4_max_size+0x4c>
   8:   db 5c 0f e0     extrd,s,* r26,63,32,ret0
   c:   97 9c 00 7e     subi 3f,ret0,ret0
  10:   01 7c 18 40     mtsar ret0
  14:   73 dc 3f 91     std ret0,-38(sp)
  18:   08 1c 02 53     copy ret0,r19
  1c:   37 5a 3f ef     ldo -9(r26),r26
  20:   d7 9f 12 1d     depdi,z,* -1,sar,32,ret0
  24:   db 5a 0f e0     extrd,s,* r26,63,32,r26
  28:   01 7a 18 c0     mtsarcm r26
  2c:   f7 ff 00 00     depdi,z,* -1,63,32,r31
  30:   d3 ff 17 00     extrd,s,* r31,sar,64,r31
  34:   01 73 18 40     mtsar r19
  38:   d7 ff 03 00     depd,z,* r31,sar,64,r31
  3c:   0b 9f 78 a0     cmpclr,*> r31,ret0,r0
  40:   08 1f 02 5c     copy r31,ret0
  44:   e8 40 d0 00     bve (rp)
  48:   37 de 3f 81     ldo -40(sp),sp
  4c:   01 7c 18 c0     mtsarcm ret0
  50:   d7 9f 12 1d     depdi,z,* -1,sar,3,ret0
  54:   e8 40 d0 00     bve (rp)
  58:   37 de 3f 81     ldo -40(sp),sp
  5c:   00 00 00 00     break 0,0

I think that blkbits is 12, so the depdi instructions (0x2c and 0x50) do:
shift a -1 of length 3 by 12 bits, which is 28672. Reading the C code they
should do "of length 32", so I fear gcc is somehow damaging it's length
output here.

A part from the 32 bit code looks like this:

  9c:   01 7c 18 40     mtsar ret0
  a0:   d7 9f 18 01     depwi,z -1,31,31,ret0
  a4:   d6 bf 10 00     depwi,z -1,sar,32,r21
  a8:   08 14 02 5d     copy r20,ret1
  ac:   01 7a 18 40     mtsar r26
  b0:   d3 80 00 1a     shrpw r0,ret0,sar,r26

So here a 32 bit -1 is used if I'm reading this correctly.

My current 2.6.39.2 kernel is built with the same compiler (4.5.3) and
runs fine, while 3.x doesn't work. That likely comes because the later of
those shift things has been fixed in
f17722f917b2f21497deb6edc62fb1683daa08e6, and the former is never hit.
I've also compiled this file with 4.6.2, but the ASM code looks the same.

Dave, any idea?

Eike
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From - Thu Nov 08 21:07:58 2018
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Subject: Re: [PATCH] parisc: dont unconditionally override CROSS_COMPILE for
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On 2/26/2012 6:26 PM, Paul Gortmaker wrote:
> Using the 64 bit toolchains from kernel.org[1], one finds that
> you can't build the a500_defconfig, because the Makefile will
> stomp whatever value you have in your env. for CROSS_COMPILE.
>
> This shows up since the kernel.org toolchains for parisc-64
> do not have the "-gnu" prefix, and so you run into it always
> saying hppa64-linux-gnu-gcc not found, regardless of the fact
> you've not got "-gnu" put anywhere into CROSS_COMPILE.
>
> [1] ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.5.2/
>
> Signed-off-by: Paul Gortmaker<paul.gortmaker@windriver.com>
>
> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
> index 55cca1d..cefff6d 100644
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
> @@ -31,7 +31,9 @@ ifdef CONFIG_64BIT
>   UTS_MACHINE	:= parisc64
>   CHECKFLAGS	+= -D__LP64__=1 -m64
>   WIDTH		:= 64
> -CROSS_COMPILE	:= hppa64-linux-gnu-
> +ifndef CROSS_COMPILE
> + CROSS_COMPILE	:= hppa64-linux-gnu-
> +endif
>   else # 32-bit
>   WIDTH		:=
>   endif
This change breaks native builds.  So, I assume CROSS_COMPILE must be
previously defined.

I couldn't figure out where it is defined.  CONFIG_CROSS_COMPILE in my
.config was an empty string  and CROSS_COMPILE was not defined in my
build environment.

The default toolchain prefix on Debian systems contains "gnu-".

Given that users can use CONFIG_CROSS_COMPILE or set CROSS_COMPILE
in their build env, maybe setting CROSS_COMPILE in the Makefile is a 
mistake.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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Subject: Re: [PATCH] parisc: fix longstanding build failures for !CONFIG_PCI
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On Sun, 2012-02-26 at 18:24 -0500, Paul Gortmaker wrote:
> Upstream commit fea80311a939a746533a6d7e7c3183729d6a3faf
> 
>     "iomap: make IOPORT/PCI mapping functions conditional"
> 
> introduced an arch independent stub for pci_iounmap() but the
> parisc had its own that was unconditionally built.  So builds
> since v3.0-3553-gfea8031 have been failing with:
> 
> arch/parisc/lib/iomap.c:439:6: error: redefinition of 'pci_iounmap'
> include/asm-generic/iomap.h:75:20: note: previous definition of 'pci_iounmap' was here
> 
> Making the parisc one specific to CONFIG_PCI fixes the problem.
> 
> CC: Randy Dunlap <rdunlap@xenotime.net>
> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
> ---
> 
> [This fixes the linux-next builds that have been consistently failing
>  since last July -- http://kisskb.ellerman.id.au/kisskb/target/2069/ ]
> 
> diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
> index fb8e10a..dc0a2c3 100644
> --- a/arch/parisc/lib/iomap.c
> +++ b/arch/parisc/lib/iomap.c

This should break more than just PARISC ... any non-PCI build for any
arch should be broken, so this is the proposed generic fix:

http://marc.info/?l=linux-parisc&m=132794183521355

James


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From - Thu Nov 08 21:07:58 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.next
Subject: Re: [PATCH] parisc: fix longstanding build failure on prefetch
Date: Mon, 27 Feb 2012 09:24:49 -0600
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On Sun, 2012-02-26 at 15:51 -0500, Paul Gortmaker wrote:
> Upstream commit e66eed651fd18a961f11cda62f3b5286c8cc4f9f
> 
>     "list: remove prefetching from regular list iterators"
> 
> removed <linux/prefetch.h> from <linux/list.h> very early in the
> v3.0 dev cycle (v2.6.39-2-ge66eed6), thereby causing build failures
> when it exposed the implicit prefetch users in parisc.

I already have this in my internal patch queue:

http://marc.info/?l=linux-parisc&m=132825467010662

James



From - Thu Nov 08 21:07:58 2018
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From: Paul Gortmaker <paul.gortmaker@windriver.com>
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Subject: Re: [PATCH] parisc: fix longstanding build failure on prefetch
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On 12-02-27 10:24 AM, James Bottomley wrote:
> On Sun, 2012-02-26 at 15:51 -0500, Paul Gortmaker wrote:
>> Upstream commit e66eed651fd18a961f11cda62f3b5286c8cc4f9f
>>
>>     "list: remove prefetching from regular list iterators"
>>
>> removed <linux/prefetch.h> from <linux/list.h> very early in the
>> v3.0 dev cycle (v2.6.39-2-ge66eed6), thereby causing build failures
>> when it exposed the implicit prefetch users in parisc.
> 
> I already have this in my internal patch queue:
> 
> http://marc.info/?l=linux-parisc&m=132825467010662

Is this in a different queue than what is in linux next?

It would be nice to see such build fixes get into linux-next
ASAP, so folks doing multi-arch coverage builds on their work
can know if they've introduced a regression.  At the moment,
the parisc builds in linux-next have been worthless for over
six months, and I'm sure I'm not the 1st one to waste time
"re-solving" old bugs like this.

Thanks,
Paul.

> 
> James
> 
> 

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Subject: Re: [PATCH] parisc: fix longstanding build failures for !CONFIG_PCI
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On 12-02-27 10:20 AM, James Bottomley wrote:
> On Sun, 2012-02-26 at 18:24 -0500, Paul Gortmaker wrote:
>> Upstream commit fea80311a939a746533a6d7e7c3183729d6a3faf
>>
>>     "iomap: make IOPORT/PCI mapping functions conditional"
>>
>> introduced an arch independent stub for pci_iounmap() but the
>> parisc had its own that was unconditionally built.  So builds
>> since v3.0-3553-gfea8031 have been failing with:
>>
>> arch/parisc/lib/iomap.c:439:6: error: redefinition of 'pci_iounmap'
>> include/asm-generic/iomap.h:75:20: note: previous definition of 'pci_iounmap' was here
>>
>> Making the parisc one specific to CONFIG_PCI fixes the problem.
>>
>> CC: Randy Dunlap <rdunlap@xenotime.net>
>> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
>> ---
>>
>> [This fixes the linux-next builds that have been consistently failing
>>  since last July -- http://kisskb.ellerman.id.au/kisskb/target/2069/ ]
>>
>> diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
>> index fb8e10a..dc0a2c3 100644
>> --- a/arch/parisc/lib/iomap.c
>> +++ b/arch/parisc/lib/iomap.c
> 
> This should break more than just PARISC ... any non-PCI build for any
> arch should be broken, so this is the proposed generic fix:
> 
> http://marc.info/?l=linux-parisc&m=132794183521355

Similar comments here, it would have saved me looking at it at all
if this was simply present in linux-next anytime after last July.

Thanks,
Paul.

> 
> James
> 
> 
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From - Thu Nov 08 21:07:58 2018
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From: Paul Gortmaker <paul.gortmaker@windriver.com>
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Subject: Re: [PATCH] parisc: dont unconditionally override CROSS_COMPILE for
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On 12-02-27 10:14 AM, John David Anglin wrote:
> On 2/26/2012 6:26 PM, Paul Gortmaker wrote:
>> Using the 64 bit toolchains from kernel.org[1], one finds that
>> you can't build the a500_defconfig, because the Makefile will
>> stomp whatever value you have in your env. for CROSS_COMPILE.
>>
>> This shows up since the kernel.org toolchains for parisc-64
>> do not have the "-gnu" prefix, and so you run into it always
>> saying hppa64-linux-gnu-gcc not found, regardless of the fact
>> you've not got "-gnu" put anywhere into CROSS_COMPILE.
>>
>> [1] ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.5.2/
>>
>> Signed-off-by: Paul Gortmaker<paul.gortmaker@windriver.com>
>>
>> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
>> index 55cca1d..cefff6d 100644
>> --- a/arch/parisc/Makefile
>> +++ b/arch/parisc/Makefile
>> @@ -31,7 +31,9 @@ ifdef CONFIG_64BIT
>>   UTS_MACHINE	:= parisc64
>>   CHECKFLAGS	+= -D__LP64__=1 -m64
>>   WIDTH		:= 64
>> -CROSS_COMPILE	:= hppa64-linux-gnu-
>> +ifndef CROSS_COMPILE
>> + CROSS_COMPILE	:= hppa64-linux-gnu-
>> +endif
>>   else # 32-bit
>>   WIDTH		:=
>>   endif
> This change breaks native builds.  So, I assume CROSS_COMPILE must be
> previously defined.

You lost me here.  As in a native 32bit env. doing a build for the
64 bit case is setting CROSS_COMPILE?

> 
> I couldn't figure out where it is defined.  CONFIG_CROSS_COMPILE in my
> .config was an empty string  and CROSS_COMPILE was not defined in my
> build environment.
> 
> The default toolchain prefix on Debian systems contains "gnu-".
> 
> Given that users can use CONFIG_CROSS_COMPILE or set CROSS_COMPILE
> in their build env, maybe setting CROSS_COMPILE in the Makefile is a 
> mistake.

Yeah, I'd support a complete nuke-and-pave of the whole Makefile
chunk as well.  It does seem redundant and causes more issues than
it solves.

Paul.

> 
> Dave
> 

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On Mon, 2012-02-27 at 11:02 -0500, Paul Gortmaker wrote:
> On 12-02-27 10:24 AM, James Bottomley wrote:
> > On Sun, 2012-02-26 at 15:51 -0500, Paul Gortmaker wrote:
> >> Upstream commit e66eed651fd18a961f11cda62f3b5286c8cc4f9f
> >>
> >>     "list: remove prefetching from regular list iterators"
> >>
> >> removed <linux/prefetch.h> from <linux/list.h> very early in the
> >> v3.0 dev cycle (v2.6.39-2-ge66eed6), thereby causing build failures
> >> when it exposed the implicit prefetch users in parisc.
> > 
> > I already have this in my internal patch queue:
> > 
> > http://marc.info/?l=linux-parisc&m=132825467010662
> 
> Is this in a different queue than what is in linux next?

Yes, sorry ... I hadn't got around to building the parisc tree for the
current version.  I've done that now.

> It would be nice to see such build fixes get into linux-next
> ASAP, so folks doing multi-arch coverage builds on their work
> can know if they've introduced a regression.  At the moment,
> the parisc builds in linux-next have been worthless for over
> six months, and I'm sure I'm not the 1st one to waste time
> "re-solving" old bugs like this.

So if you recheck with the next build of linux-next, they should all be
there (modulo the cross compile patch which is still under discussion).

James



From - Thu Nov 08 21:07:58 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.kernel.next,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: dont unconditionally override CROSS_COMPILE for
 64 bit.
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On 2/27/2012 11:28 AM, Paul Gortmaker wrote:
> On 12-02-27 10:14 AM, John David Anglin wrote:
>> >  On 2/26/2012 6:26 PM, Paul Gortmaker wrote:
>>> >>  Using the 64 bit toolchains from kernel.org[1], one finds that
>>> >>  you can't build the a500_defconfig, because the Makefile will
>>> >>  stomp whatever value you have in your env. for CROSS_COMPILE.
>>> >>
>>> >>  This shows up since the kernel.org toolchains for parisc-64
>>> >>  do not have the "-gnu" prefix, and so you run into it always
>>> >>  saying hppa64-linux-gnu-gcc not found, regardless of the fact
>>> >>  you've not got "-gnu" put anywhere into CROSS_COMPILE.
>>> >>
>>> >>  [1]ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.5.2/
>>> >>
>>> >>  Signed-off-by: Paul Gortmaker<paul.gortmaker@windriver.com>
>>> >>
>>> >>  diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
>>> >>  index 55cca1d..cefff6d 100644
>>> >>  --- a/arch/parisc/Makefile
>>> >>  +++ b/arch/parisc/Makefile
>>> >>  @@ -31,7 +31,9 @@ ifdef CONFIG_64BIT
>>> >>     UTS_MACHINE	:= parisc64
>>> >>     CHECKFLAGS	+= -D__LP64__=1 -m64
>>> >>     WIDTH		:= 64
>>> >>  -CROSS_COMPILE	:= hppa64-linux-gnu-
>>> >>  +ifndef CROSS_COMPILE
>>> >>  + CROSS_COMPILE	:= hppa64-linux-gnu-
>>> >>  +endif
>>> >>     else # 32-bit
>>> >>     WIDTH		:=
>>> >>     endif
>> >  This change breaks native builds.  So, I assume CROSS_COMPILE must be
>> >  previously defined.
> You lost me here.  As in a native 32bit env. doing a build for the
> 64 bit case is setting CROSS_COMPILE?
>
Yes, native hppa is 32 bit .  Building a 64-bit kernel with CONFIG_64BIT 
causes the
setting of CROSS_COMPILE and the selection of hppa64-linux-gnu-gcc, etc.
If CROSS_COMPILE wasn't previously defined, your change wouldn't have have
affected the 64-bit build.

Dave

-- 
John David Anglin    dave.anglin@bell.net


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From: Paul Gortmaker <paul.gortmaker@windriver.com>
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Subject: [PATCH v2] parisc: dont unconditionally override CROSS_COMPILE for 64 bit.
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Using the 64 bit toolchains from kernel.org[1], one finds that
you can't build the a500_defconfig, because the Makefile will
stomp whatever value you have in your env. for CROSS_COMPILE.

This shows up since the kernel.org toolchains for parisc-64
do not have the "-gnu" prefix, and so you run into it always
saying hppa64-linux-gnu-gcc not found, regardless of the fact
you've not got "-gnu" put anywhere into CROSS_COMPILE.

Since you can set CROSS_COMPILE from the environment and/or set
it in your .config file, there really is no need for it to be
poked at by the Makefile at all.  So just delete it.

[1] ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.5.2/

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---

[v2: no ifdef/endif -- just delete the offending line.]

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 55cca1d..a533367 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -31,7 +31,6 @@ ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
 WIDTH		:= 64
-CROSS_COMPILE	:= hppa64-linux-gnu-
 else # 32-bit
 WIDTH		:=
 endif
-- 
1.7.9.1


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Newsgroups: gmane.linux.kernel.next,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v2] parisc: dont unconditionally override CROSS_COMPILE
 for 64 bit.
Date: Mon, 27 Feb 2012 22:03:10 +0000
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Thread-Topic: [PATCH v2] parisc: dont unconditionally override CROSS_COMPILE
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From: Mike Frysinger <vapier@gentoo.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.next
Subject: Re: [PATCH v2] parisc: dont unconditionally override CROSS_COMPILE for 64 bit.
Date: Mon, 27 Feb 2012 20:04:52 -0500
Organization: wh0rd.org
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References: <1330298813-17262-1-git-send-email-paul.gortmaker@windriver.com> <1330378864.2822.92.camel@dabdike.int.hansenpartnership.com> <1330380189.2822.95.camel@dabdike.int.hansenpartnership.com>
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Cc: Paul Gortmaker <paul.gortmaker@windriver.com>,
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	"deller@gmx.de" <deller@gmx.de>,
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To: James Bottomley <jbottomley@parallels.com>
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On Monday 27 February 2012 17:03:10 James Bottomley wrote:
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
>=20
> -CROSS_COMPILE	:=3D hppa64-linux-gnu-
> +
> +# if no default set, try to find the corresponding 64 bit compiler
> +ifeq ($(CROSS_COMPILE),)
> +CROSS_COMPILE	:=3D $(shell $(CC) -dumpmachine | sed s/hppa-\\\(.*\\\)/hp=
pa64-\\1-/)
> +endif

fails when using "hppa2.0-xxx".  perhaps:
CROSS_COMPILE ?=3D $(shell $(CC) -dumpmachine | sed 's/^hppa[^-]*-/hppa64-/=
')

don't even need the ifeq check then
=2Dmike

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From - Thu Nov 08 21:07:58 2018
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From: Yinghai Lu <yinghai@kernel.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.kernel.cross-arch
Subject: [PATCH 09/18] PCI, parisc: Register busn_res for root buses
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Cc: Bjorn Helgaas <bhelgaas@google.com>,
	Dominik Brodowski <linux@dominikbrodowski.net>,
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To: Jesse Barnes <jbarnes@virtuousgeek.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/4202>

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    2 ++
 drivers/parisc/lba_pci.c |    3 +++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 0610e91..ea3f483 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -999,7 +999,9 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(bus, dino_current_bus, 255);
 	bus->subordinate = pci_scan_child_bus(bus);
+	pci_bus_update_busn_res_end(bus, bus->subordinate);
 
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index e885764..84fa239 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1512,6 +1512,9 @@ lba_driver_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_insert_busn_res(lba_bus, lba_dev->hba.bus_num.start,
+				lba_dev->hba.bus_num.end);
+
 	lba_bus->subordinate = pci_scan_child_bus(lba_bus);
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
-- 
1.7.7

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Subject: Re: [PATCH v2] parisc: dont unconditionally override CROSS_COMPILE
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From - Thu Nov 08 21:07:58 2018
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From: Mike Frysinger <vapier@gentoo.org>
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Subject: Re: [PATCH v2] parisc: dont unconditionally override CROSS_COMPILE for 64 bit.
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On Monday 27 February 2012 22:17:01 James Bottomley wrote:
> On Mon, 2012-02-27 at 20:04 -0500, Mike Frysinger wrote:
> > On Monday 27 February 2012 17:03:10 James Bottomley wrote:
> > > --- a/arch/parisc/Makefile
> > > +++ b/arch/parisc/Makefile
> > >=20
> > > -CROSS_COMPILE	:=3D hppa64-linux-gnu-
> > > +
> > > +# if no default set, try to find the corresponding 64 bit compiler
> > > +ifeq ($(CROSS_COMPILE),)
> > > +CROSS_COMPILE	:=3D $(shell $(CC) -dumpmachine | sed
> > > s/hppa-\\\(.*\\\)/hppa64-\\1-/) +endif
> >=20
> > fails when using "hppa2.0-xxx".  perhaps:
> > CROSS_COMPILE ?=3D $(shell $(CC) -dumpmachine | sed
> > 's/^hppa[^-]*-/hppa64-/')
> >=20
> > don't even need the ifeq check then
>=20
> How is that different from Carlos' suggestion?

sorry, but i'm not seeing any e-mails from Carlos in this thread.  what is =
his=20
suggestion ?

> The reason it doesn't work is the same ... CROSS_COMPILE is defined to be
> empty.

my suggestion was purely an incremental improvement on the patch you posted=
=2E =20
it improves two things:
	- detection when the default tuple is hppa2.0-xxx rather than hppa-xxx
	- one line for set-variable-only-when-its-unset rather than three lines
=2Dmike

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH v2] parisc: dont unconditionally override CROSS_COMPILE
 for 64 bit.
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On Tue, 2012-02-28 at 01:06 -0500, Mike Frysinger wrote:
> On Monday 27 February 2012 22:17:01 James Bottomley wrote:
> > On Mon, 2012-02-27 at 20:04 -0500, Mike Frysinger wrote:
> > > On Monday 27 February 2012 17:03:10 James Bottomley wrote:
> > > > --- a/arch/parisc/Makefile
> > > > +++ b/arch/parisc/Makefile
> > > > 
> > > > -CROSS_COMPILE	:= hppa64-linux-gnu-
> > > > +
> > > > +# if no default set, try to find the corresponding 64 bit compiler
> > > > +ifeq ($(CROSS_COMPILE),)
> > > > +CROSS_COMPILE	:= $(shell $(CC) -dumpmachine | sed
> > > > s/hppa-\\\(.*\\\)/hppa64-\\1-/) +endif
> > > 
> > > fails when using "hppa2.0-xxx".  perhaps:

Is that a valid prefix?  I was thinking hppa32 might be, but hppa2.0 is
supposed to be hppa-xxx with -mpa-risc-2-0.

But anyway, I think being clever and removing unused stuff is likely
orthogonal to the first patch which is just making it all work.

> > > CROSS_COMPILE ?= $(shell $(CC) -dumpmachine | sed
> > > 's/^hppa[^-]*-/hppa64-/')
> > > 
> > > don't even need the ifeq check then
> > 
> > How is that different from Carlos' suggestion?
> 
> sorry, but i'm not seeing any e-mails from Carlos in this thread.  what is his 
> suggestion ?

Actually, I misspoke, it was your suggestion in the first thread.

> > The reason it doesn't work is the same ... CROSS_COMPILE is defined to be
> > empty.
> 
> my suggestion was purely an incremental improvement on the patch you posted.  
> it improves two things:
> 	- detection when the default tuple is hppa2.0-xxx rather than hppa-xxx
> 	- one line for set-variable-only-when-its-unset rather than three lines
> -mike

It can't be done ... defined but empty is different from not defined in
makefiles (ifdef or ?= only checks for not defined).  CROSS_COMPILE gets
automatically defined by the top level Makefile ... that's why we need a
check for empty not a check for not defined.

James


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Subject: Re: [PATCH v2] parisc: dont unconditionally override CROSS_COMPILE for 64 bit.
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On Tuesday 28 February 2012 09:10:45 James Bottomley wrote:
> On Tue, 2012-02-28 at 01:06 -0500, Mike Frysinger wrote:
> > On Monday 27 February 2012 22:17:01 James Bottomley wrote:
> > > On Mon, 2012-02-27 at 20:04 -0500, Mike Frysinger wrote:
> > > > On Monday 27 February 2012 17:03:10 James Bottomley wrote:
> > > > > --- a/arch/parisc/Makefile
> > > > > +++ b/arch/parisc/Makefile
> > > > >=20
> > > > > -CROSS_COMPILE	:=3D hppa64-linux-gnu-
> > > > > +
> > > > > +# if no default set, try to find the corresponding 64 bit compil=
er
> > > > > +ifeq ($(CROSS_COMPILE),)
> > > > > +CROSS_COMPILE	:=3D $(shell $(CC) -dumpmachine | sed
> > > > > s/hppa-\\\(.*\\\)/hppa64-\\1-/) +endif
> > > >=20
> > > > fails when using "hppa2.0-xxx".  perhaps:
>=20
> Is that a valid prefix?  I was thinking hppa32 might be, but hppa2.0 is
> supposed to be hppa-xxx with -mpa-risc-2-0.

we've been using hppa2.0 for years.  gnuconfig certainly recognizes it:
$ grep hppa /usr/share/gnuconfig/config.sub=20
        | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa6=
4 \
        | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \

and i've seen diff projects key off of the hppa2.0* to enable newer feature=
s by=20
default.

> But anyway, I think being clever and removing unused stuff is likely
> orthogonal to the first patch which is just making it all work.

sure, but your new patch added the sed :)

> > > The reason it doesn't work is the same ... CROSS_COMPILE is defined to
> > > be empty.
> >=20
> > my suggestion was purely an incremental improvement on the patch you
> > posted.
> >=20
> > it improves two things:
> > 	- detection when the default tuple is hppa2.0-xxx rather than hppa-xxx
> > 	- one line for set-variable-only-when-its-unset rather than three lines
>=20
> It can't be done ... defined but empty is different from not defined in
> makefiles (ifdef or ?=3D only checks for not defined).  CROSS_COMPILE gets
> automatically defined by the top level Makefile ... that's why we need a
> check for empty not a check for not defined.

yeah, OK ... this behavior changed from what i was remembering.  ?=3D used =
to=20
work until the top level Makefile was improved.
=2Dmike

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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Happy New Year PARISC (take 2)
Date: Tue, 28 Feb 2012 10:28:10 -0500
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
	Carlos O'Donell <carlos@systemhalted.org>,
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	linux-parisc List <linux-parisc@vger.kernel.org>
To: John David Anglin <dave.anglin@bell.net>
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On 1/29/2012 4:45 PM, John David Anglin wrote:
> Here is take take 2.  It's against linux-stable v3.2.2.  I also have a 
> very similar
> version against v3.1.10.
>
Here is take 3.  Since take 2, I have tried mainly to explore 
performance issues.

The big difference is a new implementation of flush_cache_mm where I try to
avoid the brutal flush of the whole cache.  This drops the full GCC 
build time at
-j4 from about six hours nine minutes to three hours ten minutes on 
rp3440 (i.e.,
almost by a factor two).  Build and check time is still a bit slower 
than HP-UX.
There's probably more to tweak here.

Other changes made little difference (e.g., clear_page_asm).  I also 
explored
the affect of prefetch operations in clear_page_asm and copy_page_asm, but
the difference if any was in the noise.

Dave

-- 
John David Anglin    dave.anglin@bell.net


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diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index da601dd..08f85dc 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -115,7 +115,9 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 {
 	if (PageAnon(page)) {
 		flush_tlb_page(vma, vmaddr);
+		preempt_disable();
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
+		preempt_enable();
 	}
 }
 
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 2388bdb..7839285 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -8,6 +8,29 @@
 #include <asm/atomic.h>
 #include <asm/errno.h>
 
+/* The following has to match the LWS code in syscall.S.  We have
+   sixteen four-word locks. */
+
+static inline void
+_futex_spin_lock_irqsave (u32 __user *uaddr, unsigned long int *flags)
+{
+	extern u32 lws_lock_start[];
+	long index = ((long)uaddr & 0xf0) >> 2;
+	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
+	local_irq_save(*flags);
+	arch_spin_lock(s);
+}
+
+static inline void
+_futex_spin_unlock_irqrestore (u32 __user *uaddr, unsigned long int *flags)
+{
+	extern u32 lws_lock_start[];
+	long index = ((long)uaddr & 0xf0) >> 2;
+	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
+	arch_spin_unlock(s);
+	local_irq_restore(*flags);
+}
+
 static inline int
 futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 {
@@ -26,7 +49,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_disable();
 
-	_atomic_spin_lock_irqsave(uaddr, flags);
+	_futex_spin_lock_irqsave(uaddr, &flags);
 
 	switch (op) {
 	case FUTEX_OP_SET:
@@ -71,7 +94,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 		ret = -ENOSYS;
 	}
 
-	_atomic_spin_unlock_irqrestore(uaddr, flags);
+	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
 	pagefault_enable();
 
@@ -113,7 +136,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	 * address. This should scale to a couple of CPUs.
 	 */
 
-	_atomic_spin_lock_irqsave(uaddr, flags);
+	_futex_spin_lock_irqsave(uaddr, &flags);
 
 	ret = get_user(val, uaddr);
 
@@ -122,7 +145,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 
 	*uval = val;
 
-	_atomic_spin_unlock_irqrestore(uaddr, flags);
+	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
 	return ret;
 }
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index a84cc1f..a2a375d 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -21,15 +21,27 @@
 #include <asm/types.h>
 #include <asm/cache.h>
 
-#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define clear_page(page)	clear_page_asm((void *)(page))
+#define copy_page(to,from)      copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
+void clear_page_asm(void *page);
+void copy_page_asm(void *to, void *from);
+void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+
+// #define CONFIG_PARISC_TMPALIAS
+
+#ifdef CONFIG_PARISC_TMPALIAS
+void clear_user_highpage(struct page *page, unsigned long vaddr);
+#define clear_user_highpage clear_user_highpage
+struct vm_area_struct;
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma);
+#define __HAVE_ARCH_COPY_USER_HIGHPAGE
+#endif
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 22dadeb..891b369 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -40,7 +40,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm,addr,ptep, pteval)                        \
+        do{                                                     \
+                set_pte(ptep,pteval);                           \
+                purge_tlb_entries(mm,addr);                     \
+        } while(0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -460,10 +467,13 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #ifdef CONFIG_SMP
 	unsigned long new, old;
 
+	/* ??? This might be racy because the page table updates in
+	   entry.S don't use the same lock.  */
 	do {
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index dcd5510..5df1597 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -141,6 +141,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -230,6 +231,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 83335f3..eddeddb 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -134,7 +134,7 @@ parisc_cache_init(void)
 	if (pdc_cache_info(&cache_info) < 0)
 		panic("parisc_cache_init: pdc_cache_info failed");
 
-#if 0
+#if 1
 	printk("ic_size %lx dc_size %lx it_size %lx\n",
 		cache_info.ic_size,
 		cache_info.dc_size,
@@ -268,9 +268,11 @@ static inline void
 __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 		   unsigned long physaddr)
 {
+	preempt_disable();
 	flush_dcache_page_asm(physaddr, vmaddr);
 	if (vma->vm_flags & VM_EXEC)
 		flush_icache_page_asm(physaddr, vmaddr);
+	preempt_enable();
 }
 
 void flush_dcache_page(struct page *page)
@@ -316,7 +318,7 @@ void flush_dcache_page(struct page *page)
 		flush_tlb_page(mpnt, addr);
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
+			if (old_addr && parisc_requires_coherency())
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
 			old_addr = addr;
 		}
@@ -331,17 +333,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -375,20 +366,9 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
 
-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
-
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
-{
-	unsigned long flags;
-
-	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start(flags);
-	pdtlb_kernel(page);
-	purge_tlb_end(flags);
-	clear_user_page_asm(page, vaddr);
-}
-EXPORT_SYMBOL(clear_user_page);
+extern void purge_kernel_dcache_page_asm(unsigned long);
+extern void clear_user_page_asm(void *, unsigned long);
+extern void copy_user_page_asm(void *, void *, unsigned long);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
@@ -401,11 +381,26 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
+void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
+{
+	clear_page_asm(vto);
+	if (!parisc_requires_coherency())
+		flush_kernel_dcache_page_asm(vto);
+}
+EXPORT_SYMBOL(clear_user_page);
+
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-		    struct page *pg)
+	struct page *pg)
 {
-	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
+	/* Copy using kernel mapping.  No coherency is needed
+	   (all in kmap/kunmap) on machines that don't support
+	   non-equivalent aliasing.  However, the `from' page
+	   needs to be flushed before it can be accessed through
+	   the kernel mapping. */
+	preempt_disable();
+	flush_dcache_page_asm(__pa(vfrom), vaddr);
+	preempt_enable();
+	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
 		flush_kernel_dcache_page_asm(vto);
 }
@@ -460,8 +455,64 @@ void flush_cache_all(void)
 	on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
 }
 
+static inline unsigned long mm_total_size(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long usize = 0;
+
+	for (vma = mm->mmap; vma; vma = vma->vm_next)
+		usize += vma->vm_end - vma->vm_start;
+	return usize;
+}
+
+static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
+{
+	pte_t *ptep = NULL;
+
+        if (!pgd_none(*pgd)) {
+                pud_t *pud = pud_offset(pgd, addr);
+                if (!pud_none(*pud)) {
+                        pmd_t *pmd = pmd_offset(pud, addr);
+                        if (!pmd_none(*pmd)) {
+                                ptep = pte_offset_map(pmd, addr);
+                        }
+                }
+        }
+	return ptep;
+}
+
 void flush_cache_mm(struct mm_struct *mm)
 {
+	/* Flushing the whole cache on each cpu takes forever on
+	   rp3440, etc.  So, avoid it if mm isn't too big.  */
+	if (mm_total_size(mm) < parisc_cache_flush_threshold) {
+		struct vm_area_struct *vma;
+
+		if (mm->context == mfsp(3)) {
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				flush_user_dcache_range_asm(vma->vm_start, vma->vm_end);
+				if(vma->vm_flags & VM_EXEC)
+					flush_user_icache_range_asm(vma->vm_start, vma->vm_end);
+			}
+		} else {
+			pgd_t *pgd = mm->pgd;
+
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				unsigned long addr;
+
+				for (addr = vma->vm_start; addr < vma->vm_end; addr += PAGE_SIZE) {
+					pte_t *ptep = get_ptep(pgd, addr);
+					if (ptep != NULL) {
+						pte_t pte = *ptep;
+						if (pte_present(pte))
+							__flush_cache_page(vma, addr, page_to_phys(pte_page(pte)));
+					}
+				}
+			}
+		}
+		return;
+	}
+
 #ifdef CONFIG_SMP
 	flush_cache_all();
 #else
@@ -487,20 +538,71 @@ flush_user_icache_range(unsigned long start, unsigned long end)
 		flush_instruction_cache();
 }
 
+/* While useful for testing, this check has too much overhead for
+   general use.  */
+#define DEBUG_PAGE_MAPPING 0
+
+static inline void check_page_mapping(struct page *page)
+{
+#if DEBUG_PAGE_MAPPING
+	struct address_space *mapping = page_mapping(page);
+	struct vm_area_struct *mpnt;
+	struct prio_tree_iter iter;
+	unsigned long offset;
+	unsigned long addr, old_addr = 0;
+	pgoff_t pgoff;
+
+	if (!mapping || !mapping_mapped(mapping))
+		return;
+
+	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+
+	/* Check that all mappings are congruently mapped */
+
+	flush_dcache_mmap_lock(mapping);
+	vma_prio_tree_foreach(mpnt, &iter, &mapping->i_mmap, pgoff, pgoff) {
+		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
+		addr = mpnt->vm_start + offset;
+		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
+			if (old_addr) {
+				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
+			}
+			old_addr = addr;
+		}
+	}
+	flush_dcache_mmap_unlock(mapping);
+#endif
+}
 
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	int sr3;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
+	if ((end - start) < parisc_cache_flush_threshold) {
+		if (vma->vm_mm->context == mfsp(3)) {
+			flush_user_dcache_range_asm(start,end);
+			if(vma->vm_flags & VM_EXEC)
+				flush_user_icache_range_asm(start,end);
+		} else {
+			unsigned long addr;
+			pgd_t *pgd = vma->vm_mm->pgd;
+
+			for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+				pte_t *ptep = get_ptep(pgd, addr);
+				if (ptep) {
+					pte_t pte = *ptep;
+					check_page_mapping(pte_page(pte));
+					flush_cache_page(vma, addr, pte_pfn(pte));
+				}
+			}
+		}
 	} else {
+#ifdef CONFIG_SMP
 		flush_cache_all();
+#else
+		flush_cache_all_local();
+#endif
 	}
 }
 
@@ -513,3 +615,81 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
+
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	mtsp(mm->context,1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+}
+
+#ifdef CONFIG_PARISC_TMPALIAS
+
+void clear_user_highpage(struct page *page, unsigned long vaddr)
+{
+	void *vto;
+	unsigned long flags;
+
+	/* Clear using TMPALIAS region.  The page doesn't need to
+	   be flushed but the kernel mapping needs to be purged.  */
+
+	vto = kmap_atomic(page, KM_USER0);
+
+	/* The PA-RISC 2.0 Architecture book states on page F-6:
+	   "Before a write-capable translation is enabled, *all*
+	   non-equivalently-aliased translations must be removed
+	   from the page table and purged from the TLB.  (Note
+	   that the caches are not required to be flushed at this
+	   time.)  Before any non-equivalent aliased translation
+	   is re-enabled, the virtual address range for the writeable
+	   page (the entire page) must be flushed from the cache,
+	   and the write-capable translation removed from the page
+	   table and purged from the TLB."  */
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	purge_tlb_end(flags);
+	preempt_disable();
+	clear_user_page_asm(vto, vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma)
+{
+	void *vfrom, *vto;
+	unsigned long flags;
+
+	/* Copy using TMPALIAS region.  This has the advantage
+	   that the `from' page doesn't need to be flushed.  However,
+	   the `to' page must be flushed in copy_user_page_asm since
+	   it can be used to bring in executable code.  */
+
+	vfrom = kmap_atomic(from, KM_USER0);
+	vto = kmap_atomic(to, KM_USER1);
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	pdtlb_kernel(vfrom);
+	purge_tlb_end(flags);
+	preempt_disable();
+	copy_user_page_asm(vto, vfrom, vaddr);
+	flush_dcache_page_asm(__pa(vto), vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER1); */
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+#endif /* CONFIG_PARISC_TMPALIAS */
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 6f05944..3caa199 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -483,7 +483,7 @@
 	 * B <-> _PAGE_DMB (memory break)
 	 *
 	 * Then incredible subtlety: The access rights are
-	 * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
+	 * _PAGE_GATEWAY, _PAGE_EXEC and _PAGE_WRITE
 	 * See 3-14 of the parisc 2.0 manual
 	 *
 	 * Finally, _PAGE_READ goes in the top bit of PL1 (so we
@@ -493,7 +493,7 @@
 
 	/* PAGE_USER indicates the page can be read with user privileges,
 	 * so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1
-	 * contains _PAGE_READ */
+	 * contains _PAGE_READ) */
 	extrd,u,*=      \pte,_PAGE_USER_BIT+32,1,%r0
 	depdi		7,11,3,\prot
 	/* If we're a gateway page, drop PL2 back to zero for promotion
@@ -1777,9 +1777,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1809,7 +1809,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1828,8 +1828,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1852,7 +1853,7 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..8094d3e 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
-	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+	.flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
-	.flags = IRQF_DISABLED | IRQF_PERCPU,
+	.flags = IRQF_PERCPU,
 };
 #endif
 
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
 {
 	local_irq_disable();	/* PARANOID - should already be disabled */
 	mtctl(~0UL, 23);	/* EIRR : clear all pending external intr */
-	claim_cpu_irqs();
 #ifdef CONFIG_SMP
-	if (!cpu_eiem)
+	if (!cpu_eiem) {
+		claim_cpu_irqs();
 		cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+	}
 #else
+	claim_cpu_irqs();
 	cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 93ff3d9..9a29e34 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -199,7 +199,6 @@ ENTRY(flush_instruction_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
 	load32		cache_info, %r1
 
 	/* Flush Instruction Cache */
@@ -208,20 +207,46 @@ ENTRY(flush_instruction_cache_local)
 	LDREG		ICACHE_STRIDE(%r1), %arg1
 	LDREG		ICACHE_COUNT(%r1), %arg2
 	LDREG		ICACHE_LOOP(%r1), %arg3
-	rsm             PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fioneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fisync	/* If loop < 0, do sync */
 
 fimanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fimanyloop	/* Adjusted inner loop decr */
-	fice            %r0(%sr1, %arg0)
-	fice,m		%arg1(%sr1, %arg0)	/* Last fice and addr adjust */
+	fice            %r0(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)	/* Last fice and addr adjust */
 	movb,tr		%arg3, %r31, fimanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fisync	/* Outer loop decr */
 
 fioneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fioneloop	/* Outer loop count decr */
-	fice,m		%arg1(%sr1, %arg0)	/* Fice for one loop */
+	/* Some implementations may flush with a single fice instruction */
+	cmpib,COND(>>=),n	15, %arg2, fioneloop2
+
+fioneloop1:
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	addib,COND(>)	-16, %arg2, fioneloop1
+	fice,m		%arg1(%sr2, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fisync	/* Predict branch taken */
+
+fioneloop2:
+	addib,COND(>)	-1, %arg2, fioneloop2	/* Outer loop count decr */
+	fice,m		%arg1(%sr2, %arg0)	/* Fice for one loop */
 
 fisync:
 	sync
@@ -240,8 +265,7 @@ ENTRY(flush_data_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
-	load32 		cache_info, %r1
+	load32		cache_info, %r1
 
 	/* Flush Data Cache */
 
@@ -249,20 +273,46 @@ ENTRY(flush_data_cache_local)
 	LDREG		DCACHE_STRIDE(%r1), %arg1
 	LDREG		DCACHE_COUNT(%r1), %arg2
 	LDREG		DCACHE_LOOP(%r1), %arg3
-	rsm		PSW_SM_I, %r22
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fdoneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fdsync	/* If loop < 0, do sync */
 
 fdmanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fdmanyloop	/* Adjusted inner loop decr */
-	fdce		%r0(%sr1, %arg0)
-	fdce,m		%arg1(%sr1, %arg0)	/* Last fdce and addr adjust */
+	fdce		%r0(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)	/* Last fdce and addr adjust */
 	movb,tr		%arg3, %r31, fdmanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fdsync	/* Outer loop decr */
 
 fdoneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fdoneloop	/* Outer loop count decr */
-	fdce,m		%arg1(%sr1, %arg0)	/* Fdce for one loop */
+	/* Some implementations may flush with a single fdce instruction */
+	cmpib,COND(>>=),n	15, %arg2, fdoneloop2
+
+fdoneloop1:
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	addib,COND(>)	-16, %arg2, fdoneloop1
+	fdce,m		%arg1(%sr2, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fdsync	/* Predict branch taken */
+
+fdoneloop2:
+	addib,COND(>)	-1, %arg2, fdoneloop2	/* Outer loop count decr */
+	fdce,m		%arg1(%sr2, %arg0)	/* Fdce for one loop */
 
 fdsync:
 	syncdma
@@ -277,7 +327,104 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+/* Macros to serialize TLB purge operations on SMP.  */
+
+	.macro	tlb_lock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock,%r1
+	ldo		R%pa_tlb_lock(%r1),\la
+	rsm		PSW_SM_I,\flags
+1:	LDCW		0(\la),\tmp
+	cmpib,<>,n	0,\tmp,3f
+2:	ldw		0(\la),\tmp
+	cmpb,<>		%r0,\tmp,1b
+	nop
+	b,n		2b
+3:
+#endif
+	.endm
+
+	.macro	tlb_unlock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldi		1,\tmp
+	stw		\tmp,0(\la)
+	mtsm		\flags
+#endif
+	.endm
+
+/* Clear page using kernel mapping.  */
+
+ENTRY(clear_page_asm)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+#ifdef CONFIG_64BIT
+
+	/* Unroll the loop.  */
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:
+	std		%r0, 0(%r26)
+	std		%r0, 8(%r26)
+	std		%r0, 16(%r26)
+	std		%r0, 24(%r26)
+	std		%r0, 32(%r26)
+	std		%r0, 40(%r26)
+	std		%r0, 48(%r26)
+	std		%r0, 56(%r26)
+	std		%r0, 64(%r26)
+	std		%r0, 72(%r26)
+	std		%r0, 80(%r26)
+	std		%r0, 88(%r26)
+	std		%r0, 96(%r26)
+	std		%r0, 104(%r26)
+	std		%r0, 112(%r26)
+	std		%r0, 120(%r26)
+
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
+
+#else
+
+	/*
+	 * Note that until (if) we start saving the full 64-bit register
+	 * values on interrupt, we can't use std on a 32 bit kernel.
+	 */
+	ldi		(PAGE_SIZE / 64), %r1
+
+1:
+	stw		%r0, 0(%r26)
+	stw		%r0, 4(%r26)
+	stw		%r0, 8(%r26)
+	stw		%r0, 12(%r26)
+	stw		%r0, 16(%r26)
+	stw		%r0, 20(%r26)
+	stw		%r0, 24(%r26)
+	stw		%r0, 28(%r26)
+	stw		%r0, 32(%r26)
+	stw		%r0, 36(%r26)
+	stw		%r0, 40(%r26)
+	stw		%r0, 44(%r26)
+	stw		%r0, 48(%r26)
+	stw		%r0, 52(%r26)
+	stw		%r0, 56(%r26)
+	stw		%r0, 60(%r26)
+
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		64(%r26), %r26
+#endif
+	bv		%r0(%r2)
+	nop
+	.exit
+
+	.procend
+ENDPROC(clear_page_asm)
+
+/* Copy page using kernel mapping.  */
+
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -285,18 +432,14 @@ ENTRY(copy_user_page_asm)
 #ifdef CONFIG_64BIT
 	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
 	 * Unroll the loop by hand and arrange insn appropriately.
-	 * GCC probably can do this just as well.
+	 * Prefetch doesn't improve performance on rp3440.
+	 * GCC probably can do this just as well...
 	 */
 
-	ldd		0(%r25), %r19
 	ldi		(PAGE_SIZE / 128), %r1
 
-	ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
-	ldw		128(%r25), %r0		/* prefetch 2 */
-
-1:	ldd		8(%r25), %r20
-	ldw		192(%r25), %r0		/* prefetch 3 */
-	ldw		256(%r25), %r0		/* prefetch 4 */
+1:	ldd		0(%r25), %r19
+	ldd		8(%r25), %r20
 
 	ldd		16(%r25), %r21
 	ldd		24(%r25), %r22
@@ -330,20 +473,16 @@ ENTRY(copy_user_page_asm)
 
 	ldd		112(%r25), %r21
 	ldd		120(%r25), %r22
+	ldo		128(%r25), %r25
 	std		%r19, 96(%r26)
 	std		%r20, 104(%r26)
 
-	ldo		128(%r25), %r25
 	std		%r21, 112(%r26)
 	std		%r22, 120(%r26)
-	ldo		128(%r26), %r26
 
-	/* conditional branches nullify on forward taken branch, and on
-	 * non-taken backward branch. Note that .+4 is a backwards branch.
-	 * The ldd should only get executed if the branch is taken.
-	 */
-	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
-	ldd		0(%r25), %r19		/* start next loads */
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
 
 #else
 
@@ -399,7 +538,7 @@ ENTRY(copy_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,8 +561,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
-
 	/*
 	 * We can't do this since copy_user_page is used to bring in
 	 * file data that might have instructions. Since the data would
@@ -435,6 +572,7 @@ ENDPROC(copy_user_page_asm)
 	 * use it if more information is passed into copy_user_page().
 	 * Have to do some measurements to see if it is worthwhile to
 	 * lobby for such a change.
+	 *
 	 */
 
 ENTRY(copy_user_page_asm)
@@ -442,16 +580,21 @@ ENTRY(copy_user_page_asm)
 	.callinfo NO_CALLS
 	.entry
 
+	/* Convert virtual `to' and `from' addresses to physical addresses.
+	   Move `from' physical address to non shadowed register.  */
 	ldil		L%(__PAGE_OFFSET), %r1
 	sub		%r26, %r1, %r26
-	sub		%r25, %r1, %r23		/* move physical addr into non shadowed reg */
+	sub		%r25, %r1, %r23
 
 	ldil		L%(TMPALIAS_MAP_START), %r28
 	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
-	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+#endif
+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
+	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
@@ -466,10 +609,76 @@ ENTRY(copy_user_page_asm)
 
 	/* Purge any old translations */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+	pdtlb,l		0(%r29)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
-	ldi		64, %r1
+#ifdef CONFIG_64BIT
+	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
+	 * Unroll the loop by hand and arrange insn appropriately.
+	 * GCC probably can do this just as well.
+	 */
+
+	ldd		0(%r29), %r19
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:	ldd		8(%r29), %r20
+
+	ldd		16(%r29), %r21
+	ldd		24(%r29), %r22
+	std		%r19, 0(%r28)
+	std		%r20, 8(%r28)
+
+	ldd		32(%r29), %r19
+	ldd		40(%r29), %r20
+	std		%r21, 16(%r28)
+	std		%r22, 24(%r28)
+
+	ldd		48(%r29), %r21
+	ldd		56(%r29), %r22
+	std		%r19, 32(%r28)
+	std		%r20, 40(%r28)
+
+	ldd		64(%r29), %r19
+	ldd		72(%r29), %r20
+	std		%r21, 48(%r28)
+	std		%r22, 56(%r28)
+
+	ldd		80(%r29), %r21
+	ldd		88(%r29), %r22
+	std		%r19, 64(%r28)
+	std		%r20, 72(%r28)
+
+	ldd		 96(%r29), %r19
+	ldd		104(%r29), %r20
+	std		%r21, 80(%r28)
+	std		%r22, 88(%r28)
+
+	ldd		112(%r29), %r21
+	ldd		120(%r29), %r22
+	std		%r19, 96(%r28)
+	std		%r20, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r21, 112(%r28)
+	std		%r22, 120(%r28)
+	ldo		128(%r28), %r28
+
+	/* conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 * The ldd should only get executed if the branch is taken.
+	 */
+	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
+	ldd		0(%r29), %r19		/* start next loads */
+
+#else
+	ldi		(PAGE_SIZE / 64), %r1
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,9 +689,7 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
+1:	ldw		0(%r29), %r19
 	ldw		4(%r29), %r20
 	ldw		8(%r29), %r21
 	ldw		12(%r29), %r22
@@ -515,8 +722,10 @@ ENTRY(copy_user_page_asm)
 	stw		%r21, 56(%r28)
 	stw		%r22, 60(%r28)
 	ldo		64(%r28), %r28
+
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
+#endif
 
 	bv		%r0(%r2)
 	nop
@@ -524,9 +733,8 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -550,7 +758,13 @@ ENTRY(__clear_user_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
@@ -580,8 +794,7 @@ ENTRY(__clear_user_page_asm)
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
-	stw		%r0, 0(%r28)
+1:	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
 	stw		%r0, 12(%r28)
@@ -606,7 +819,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_dcache_page_asm)
 	.proc
@@ -630,7 +843,13 @@ ENTRY(flush_dcache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), %r1
@@ -663,8 +882,17 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		%r1(%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pdtlb		(%r25)
+	nop
 	.exit
 
 	.procend
@@ -692,7 +920,13 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pitlb,l		%r0(%sr0,%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pitlb		(%sr0,%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -725,8 +959,17 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r1(%r28)
 
 	sync
-	bv		%r0(%r2)
+
+#ifdef CONFIG_PA20
+	pitlb,l		%r0(%sr0,%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pitlb		(%sr0,%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
+	bv		%r0(%r2)
+	nop
 	.exit
 
 	.procend
@@ -775,7 +1018,7 @@ ENTRY(flush_kernel_dcache_page_asm)
 	.procend
 ENDPROC(flush_kernel_dcache_page_asm)
 
-ENTRY(purge_kernel_dcache_page)
+ENTRY(purge_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -815,7 +1058,7 @@ ENTRY(purge_kernel_dcache_page)
 	.exit
 
 	.procend
-ENDPROC(purge_kernel_dcache_page)
+ENDPROC(purge_kernel_dcache_page_asm)
 
 ENTRY(flush_user_dcache_range_asm)
 	.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index a7bb757..25835d8 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -158,5 +158,6 @@ extern void _mcount(void);
 EXPORT_SYMBOL(_mcount);
 #endif
 
-/* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+/* from pacache.S -- needed for clear/copy_page */
+EXPORT_SYMBOL(clear_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 12c1ed3..5dd1059 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -314,7 +314,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #if DEBUG_SIG
 	/* Assert that we're flushing in the correct space... */
 	{
-		int sid;
+		unsigned long sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
 		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
 		       sid, frame->tramp);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..f0cb56e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 45b7389..53a1c69 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -76,7 +76,7 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 6) < cpt) {
+	if ((cycles_elapsed >> 7) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index 8f470c9..4b22b27 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -458,12 +458,15 @@ void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 	return NULL;
 }
 
+#ifdef CONFIG_PCI
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
 	if (!INDIRECT_ADDR(addr)) {
 		iounmap(addr);
 	}
 }
+EXPORT_SYMBOL(pci_iounmap);
+#endif
 
 EXPORT_SYMBOL(ioread8);
 EXPORT_SYMBOL(ioread16);
@@ -484,4 +487,3 @@ EXPORT_SYMBOL(iowrite32_rep);
 EXPORT_SYMBOL(ioport_map);
 EXPORT_SYMBOL(ioport_unmap);
 EXPORT_SYMBOL(pci_iomap);
-EXPORT_SYMBOL(pci_iounmap);
diff --git a/arch/parisc/math-emu/cnv_float.h b/arch/parisc/math-emu/cnv_float.h
index 9071e09..37299c7 100644
--- a/arch/parisc/math-emu/cnv_float.h
+++ b/arch/parisc/math-emu/cnv_float.h
@@ -347,16 +347,15 @@
     Sgl_isinexact_to_fix(sgl_value,exponent)
 
 #define Duint_from_sgl_mantissa(sgl_value,exponent,dresultA,dresultB)	\
-  {Sall(sgl_value) <<= SGL_EXP_LENGTH;  /*  left-justify  */		\
+  {unsigned int val = Sall(sgl_value) << SGL_EXP_LENGTH;		\
     if (exponent <= 31) {						\
     	Dintp1(dresultA) = 0;						\
-    	Dintp2(dresultB) = (unsigned)Sall(sgl_value) >> (31 - exponent); \
+    	Dintp2(dresultB) = val >> (31 - exponent);			\
     }									\
     else {								\
-    	Dintp1(dresultA) = Sall(sgl_value) >> (63 - exponent);		\
-    	Dintp2(dresultB) = Sall(sgl_value) << (exponent - 31);		\
+    	Dintp1(dresultA) = val >> (63 - exponent);			\
+    	Dintp2(dresultB) = exponent <= 62 ? val << (exponent - 31) : 0;	\
     }									\
-    Sall(sgl_value) >>= SGL_EXP_LENGTH;  /* return to original */	\
   }
 
 #define Duint_setzero(dresultA,dresultB) 	\
diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h
index a9c46cc..8c33491 100644
--- a/drivers/parisc/iommu-helpers.h
+++ b/drivers/parisc/iommu-helpers.h
@@ -1,3 +1,5 @@
+#include <linux/prefetch.h>
+
 /**
  * iommu_fill_pdir - Insert coalesced scatter/gather chunks into the I/O Pdir.
  * @ioc: The I/O Controller.
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index f7c543a..d69738a 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -549,6 +549,7 @@ out_eoi:
 void
 handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 {
+	struct irqaction *action;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	kstat_incr_irqs_this_cpu(irq, desc);
@@ -556,7 +557,9 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 	if (chip->irq_ack)
 		chip->irq_ack(&desc->irq_data);
 
-	handle_irq_event_percpu(desc, desc->action);
+	action = desc->action;
+	if (action)
+		handle_irq_event_percpu(desc, action);
 
 	if (chip->irq_eoi)
 		chip->irq_eoi(&desc->irq_data);

--------------080602000706010809020909--
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From - Thu Nov 08 21:07:59 2018
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X-Mozilla-Keys:                                                                                 
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.kernel.next,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v2] parisc: dont unconditionally override CROSS_COMPILE
 for 64 bit.
Date: Tue, 28 Feb 2012 10:33:35 -0500
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To: Mike Frysinger <vapier@gentoo.org>
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On 2/28/2012 10:21 AM, Mike Frysinger wrote:
> we've been using hppa2.0 for years.  gnuconfig certainly recognizes it:
> $ grep hppa /usr/share/gnuconfig/config.sub
>          | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
>          | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
>
> and i've seen diff projects key off of the hppa2.0* to enable newer features by
> default.
Some of the above are specific to HP-UX, but hppa1.1, hppa2.0, hppa and 
hppa64 are
valid for Linux based on config.guess.

Dave

-- 
John David Anglin    dave.anglin@bell.net


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From: Mike Frysinger <vapier@gentoo.org>
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Subject: Re: [PATCH v2] parisc: dont unconditionally override CROSS_COMPILE for 64 bit.
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To: Grant Grundler <grantgrundler@gmail.com>
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On Tuesday 28 February 2012 13:22:50 Grant Grundler wrote:
> On Tue, Feb 28, 2012 at 7:33 AM, John David Anglin wrote:
> > On 2/28/2012 10:21 AM, Mike Frysinger wrote:
> >> we've been using hppa2.0 for years.  gnuconfig certainly recognizes it:
> >> $ grep hppa /usr/share/gnuconfig/config.**sub
> >>=20
> >>         | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] |
> >>=20
> >> hppa64 \
> >>=20
> >>         | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-*=
 \
> >>=20
> >> and i've seen diff projects key off of the hppa2.0* to enable newer
> >> features by
> >> default.
> >=20
> > Some of the above are specific to HP-UX, but hppa1.1, hppa2.0, hppa and
> > hppa64 are
> > valid for Linux based on config.guess.
>=20
> Mike, et al,
> I'd suggest NOT using hppa2.0 as a surrogate for 64-bit build. I'd prefer
> hppa64 if 64-bit is meant.
>=20
> hppa2.0 can also mean PA2.0 compliant binary compiled using ILP32 model.
> right?

i don't think that's what the proposed change does.  James' patch runs $(CC=
)=20
to find the active tuple, then replaces the first part with "hppa64" to get=
 a=20
64bit toolchain automatically.  but that magic only works when the tuple is=
=20
"hppa-xxx" and so will fail when the system is using "hppa2.0-xxx".

short story: the proposed change will additionally support turning "hppa2.0-
linux-gnu" into "hppa64-linux-gnu" rather than the existing "only turns hpp=
a-
linux-gnu" into "hppa64-linux-gnu".
=2Dmike

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From - Thu Nov 08 21:07:59 2018
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From: Joe Perches <joe@perches.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi,gmane.linux.usb.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.uclinux.microblaze,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc
Subject: [PATCH trivial next 0/9] treewide: Use vsprintf extention %pf
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Emit the actual function name when possible

Joe Perches (9):
  sparc: Use vsprintf extention %pf with builtin_return_address
  alpha: Use vsprintf extention %pf with builtin_return_address
  arm: Use vsprintf extention %pf with builtin_return_address
  microblaze: Use vsprintf extention %pf with builtin_return_address
  powerpc: Use vsprintf extention %pf with builtin_return_address
  parisc: Use vsprintf extention %pf with builtin_return_address
  scsi: Use vsprintf extention %pf with builtin_return_address
  staging: ramster: Use vsprintf extention %pf with builtin_return_address
  gadget: Use vsprintf extention %pf with builtin_return_address

 arch/alpha/kernel/pci_iommu.c               |   20 ++++++++++----------
 arch/arm/nwfpe/fpmodule.c                   |    2 +-
 arch/microblaze/mm/pgtable.c                |    2 +-
 arch/powerpc/mm/pgtable_32.c                |    2 +-
 arch/sparc/kernel/ds.c                      |    2 +-
 arch/sparc/mm/srmmu.c                       |    2 +-
 drivers/parisc/superio.c                    |    2 +-
 drivers/scsi/esp_scsi.c                     |    2 +-
 drivers/staging/ramster/cluster/heartbeat.c |    4 ++--
 drivers/usb/gadget/u_serial.c               |    2 +-
 10 files changed, 20 insertions(+), 20 deletions(-)

-- 
1.7.8.111.gad25c.dirty

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Subject: [PATCH trivial next 6/9] parisc: Use vsprintf extention %pf with builtin_return_address
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Emit the function name not the address when possible.

builtin_return_address() gives an address.  When building
a kernel with CONFIG_KALLSYMS, emit the actual function
name not the address.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/parisc/superio.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index e3b76d4..5003458 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -348,7 +348,7 @@ int superio_fixup_irq(struct pci_dev *pcidev)
 		BUG();
 		return -1;
 	}
-	printk("superio_fixup_irq(%s) ven 0x%x dev 0x%x from %p\n",
+	printk("superio_fixup_irq(%s) ven 0x%x dev 0x%x from %pf\n",
 		pci_name(pcidev),
 		pcidev->vendor, pcidev->device,
 		__builtin_return_address(0));
-- 
1.7.8.111.gad25c.dirty


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Subject: Re: [PATCH v2] parisc: dont unconditionally override CROSS_COMPILE
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To: Mike Frysinger <vapier@gentoo.org>
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On Tue, Feb 28, 2012 at 01:37:10PM -0500, Mike Frysinger wrote:
> On Tuesday 28 February 2012 13:22:50 Grant Grundler wrote:
> > On Tue, Feb 28, 2012 at 7:33 AM, John David Anglin wrote:
> > > On 2/28/2012 10:21 AM, Mike Frysinger wrote:
> > >> we've been using hppa2.0 for years.  gnuconfig certainly recognizes it:
> > >> $ grep hppa /usr/share/gnuconfig/config.**sub
> > >> 
> > >>         | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] |
> > >> 
> > >> hppa64 \
> > >> 
> > >>         | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
> > >> 
> > >> and i've seen diff projects key off of the hppa2.0* to enable newer
> > >> features by
> > >> default.
> > > 
> > > Some of the above are specific to HP-UX, but hppa1.1, hppa2.0, hppa and
> > > hppa64 are
> > > valid for Linux based on config.guess.
> > 
> > Mike, et al,
> > I'd suggest NOT using hppa2.0 as a surrogate for 64-bit build. I'd prefer
> > hppa64 if 64-bit is meant.
> > 
> > hppa2.0 can also mean PA2.0 compliant binary compiled using ILP32 model.
> > right?
> 
> i don't think that's what the proposed change does.  James' patch runs $(CC) 
> to find the active tuple, then replaces the first part with "hppa64" to get a 
> 64bit toolchain automatically.  but that magic only works when the tuple is 
> "hppa-xxx" and so will fail when the system is using "hppa2.0-xxx".
> 
> short story: the proposed change will additionally support turning "hppa2.0-
> linux-gnu" into "hppa64-linux-gnu" rather than the existing "only turns hppa-
> linux-gnu" into "hppa64-linux-gnu".

There is a small helper:

    cc-cross-prefix

Which may be used ifyou have two or mroe candidated for CROSS_COMPILE.

>From mips:
 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux-  $(tool-archpref)-linux-gnu-  $(tool-archpref)-unknown-linux-gnu-)

Dunno if this would help parisc in this case..

	Sam

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From: Yinghai Lu <yinghai@kernel.org>
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Subject: [PATCH 15/24] PCI, parisc: Register busn_res for root buses
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Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    5 +++++
 drivers/parisc/lba_pci.c |    3 +++
 2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 0610e91..def94af 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -984,6 +984,10 @@ static int __init dino_probe(struct parisc_device *dev)
 	if (dino_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
 
+	dino_dev->hba.bus_num.start = dino_current_bus;
+	dino_dev->hba.bus_num.end = 255;
+	dino_dev->hba.bus_num.flags |= IORESOURCE_BUS;
+	pci_add_resource(&resources, &dino_dev->hba.bus_num);
 	/*
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
@@ -999,6 +1003,7 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_update_busn_res_end(bus, bus->subordinate);
 	bus->subordinate = pci_scan_child_bus(bus);
 
 	/* This code *depends* on scanning being single threaded
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index e885764..df1e9f9 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1503,6 +1503,9 @@ lba_driver_probe(struct parisc_device *dev)
 	if (lba_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
 
+	lba_dev->hba.bus_num.flags |= IORESOURCE_BUS;
+	pci_add_resource(&resources, &lba_dev->hba.bus_num);
+
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
 		pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
-- 
1.7.7


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From: Domenico Andreoli <cavokz@gmail.com>
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Subject: Re: Happy New Year PARISC (take 2)
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Hi,

On Tue, Feb 28, 2012 at 10:28:10AM -0500, John David Anglin wrote:
>
> Here is take 3.  Since take 2, I have tried mainly to explore
> performance issues.
> 
> The big difference is a new implementation of flush_cache_mm where I try to
> avoid the brutal flush of the whole cache.  This drops the full GCC
> build time at
> -j4 from about six hours nine minutes to three hours ten minutes on
> rp3440 (i.e.,
> almost by a factor two).  Build and check time is still a bit slower
> than HP-UX.
> There's probably more to tweak here.
> 
> Other changes made little difference (e.g., clear_page_asm).  I also
> explored
> the affect of prefetch operations in clear_page_asm and copy_page_asm, but
> the difference if any was in the noise.

I applied this patch to v3.3-rc5 and then tried to build eglibc 2.13-27,
unsuccessfully. Do you have any patch for it?

Thanks,
Domenico
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On 28-Feb-12, at 5:56 PM, Domenico Andreoli wrote:

> I applied this patch to v3.3-rc5 and then tried to build eglibc  
> 2.13-27,
> unsuccessfully. Do you have any patch for it?

I have 2.13-26 installed on my home system.  I plan to build 2.13-27  
soon.

Attached are my glibc patch set.  You need to remove hppa/local-stack- 
grows-up.diff with quilt
and then import the changes below in order.  Each patch must be pushed  
after import.

However, there are some pre-dependencies.  I believe that you should  
build the current version
of binutils with the attached two changes.  They are in the upstream  
sources but I don't believe
they are in the debian source yet. You also may need to update gcc to  
the latest unstable version
of 4.4 (build might have switched to 4.6 branch).  I now build almost  
everything else with 4.6.2.

For installation, I believe that perl and some dependent libraries  
need updating.  Otherwise, the
install will break perl.

If you get that far, you will resolve many thread related problems.   
If you use udev, it should
then be possible to update.

If you get in trouble, there are many .debs in my /dave/home/archives  
directory on shirka.esiee.fr.
If you don't have access to this system, possibly Thibaut can provide  
an account.  These can help
you revert or resolve dependencies.

Dave
--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-35--15589280
Content-Disposition: attachment; filename="core-2011-08-31.diff"
Content-Type: application/octet-stream; x-unix-mode=0644;
	name="core-2011-08-31.diff"
Content-Transfer-Encoding: 7bit

Index: eglibc-2.13/nptl/allocatestack.c
===================================================================
--- eglibc-2.13.orig/nptl/allocatestack.c	2011-09-04 12:36:29.000000000 -0400
+++ eglibc-2.13/nptl/allocatestack.c	2011-09-04 12:41:22.000000000 -0400
@@ -356,6 +356,15 @@
   if (__builtin_expect (attr->flags & ATTR_FLAG_STACKADDR, 0))
     {
       uintptr_t adj;
+#if _STACK_GROWS_DOWN
+      char * stackaddr = (char *) attr->stackaddr;
+#else
+      /* Assume the same layout as the _STACK_GROWS_DOWN case, 
+	 with struct pthread at the top of the stack block. 
+	 Later we adjust the guard location and stack address 
+	 to match the _STACK_GROWS_UP case.  */
+      char * stackaddr = (char *) attr->stackaddr + attr->stacksize;
+#endif
 
       /* If the user also specified the size of the stack make sure it
 	 is large enough.  */
@@ -365,11 +374,11 @@
 
       /* Adjust stack size for alignment of the TLS block.  */
 #if TLS_TCB_AT_TP
-      adj = ((uintptr_t) attr->stackaddr - TLS_TCB_SIZE)
+      adj = ((uintptr_t) stackaddr - TLS_TCB_SIZE)
 	    & __static_tls_align_m1;
       assert (size > adj + TLS_TCB_SIZE);
 #elif TLS_DTV_AT_TP
-      adj = ((uintptr_t) attr->stackaddr - __static_tls_size)
+      adj = ((uintptr_t) stackaddr - __static_tls_size)
 	    & __static_tls_align_m1;
       assert (size > adj);
 #endif
@@ -379,10 +388,10 @@
 	 the stack.  It is the user's responsibility to do this if it
 	 is wanted.  */
 #if TLS_TCB_AT_TP
-      pd = (struct pthread *) ((uintptr_t) attr->stackaddr
+      pd = (struct pthread *) ((uintptr_t) stackaddr
 			       - TLS_TCB_SIZE - adj);
 #elif TLS_DTV_AT_TP
-      pd = (struct pthread *) (((uintptr_t) attr->stackaddr
+      pd = (struct pthread *) (((uintptr_t) stackaddr
 				- __static_tls_size - adj)
 			       - TLS_PRE_TCB_SIZE);
 #endif
@@ -394,7 +403,7 @@
       pd->specific[0] = pd->specific_1stblock;
 
       /* Remember the stack-related values.  */
-      pd->stackblock = (char *) attr->stackaddr - size;
+      pd->stackblock = (char *) stackaddr - size;
       pd->stackblock_size = size;
 
       /* This is a user-provided stack.  It will not be queued in the
@@ -625,7 +634,7 @@
 	  char *guard = mem + (((size - guardsize) / 2) & ~pagesize_m1);
 #elif _STACK_GROWS_DOWN
 	  char *guard = mem;
-# elif _STACK_GROWS_UP
+#elif _STACK_GROWS_UP
 	  char *guard = (char *) (((uintptr_t) pd - guardsize) & ~pagesize_m1);
 #endif
 	  if (mprotect (guard, guardsize, PROT_NONE) != 0)
@@ -678,9 +687,13 @@
 			prot) != 0)
 	    goto mprot_error;
 #elif _STACK_GROWS_UP
-	  if (mprotect ((char *) pd - pd->guardsize,
-			pd->guardsize - guardsize, prot) != 0)
-	    goto mprot_error;
+	  char *new_guard = (char *) (((uintptr_t) pd - guardsize) & ~pagesize_m1);
+	  char *old_guard = (char *) (((uintptr_t) pd - pd->guardsize) & ~pagesize_m1);
+	  /* The guard size difference might be > 0, but once rounded
+	     to the nearest page the size difference might be zero.  */
+	  if (old_guard - new_guard > 0)
+	    if (mprotect (old_guard, new_guard - old_guard, prot) != 0)
+	      goto mprot_error;
 #endif
 
 	  pd->guardsize = guardsize;
@@ -723,8 +736,10 @@
 #elif _STACK_GROWS_DOWN
   *stack = stacktop;
 #elif _STACK_GROWS_UP
+  /* We don't use stacktop. In _STACK_GROWS_UP the start
+     of the stack is simply stackblock (lowest address of
+     the stored block of memory for the stack).  */
   *stack = pd->stackblock;
-  assert (*stack > 0);
 #endif
 
   return 0;
Index: eglibc-2.13/nptl/pthread_attr_getstack.c
===================================================================
--- eglibc-2.13.orig/nptl/pthread_attr_getstack.c	2011-09-04 12:37:08.000000000 -0400
+++ eglibc-2.13/nptl/pthread_attr_getstack.c	2011-09-04 12:41:22.000000000 -0400
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2010 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -33,7 +33,11 @@
   iattr = (struct pthread_attr *) attr;
 
   /* Store the result.  */
+#ifdef _STACK_GROWS_DOWN
   *stackaddr = (char *) iattr->stackaddr - iattr->stacksize;
+#else
+  *stackaddr = (char *) iattr->stackaddr;
+#endif
   *stacksize = iattr->stacksize;
 
   return 0;
Index: eglibc-2.13/nptl/pthread_attr_setstack.c
===================================================================
--- eglibc-2.13.orig/nptl/pthread_attr_setstack.c	2011-09-04 12:37:37.000000000 -0400
+++ eglibc-2.13/nptl/pthread_attr_setstack.c	2011-09-04 12:41:22.000000000 -0400
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2006, 2010 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -48,7 +48,11 @@
 #endif
 
   iattr->stacksize = stacksize;
+#if _STACK_GROWS_DOWN
   iattr->stackaddr = (char *) stackaddr + stacksize;
+#else
+  iattr->stackaddr = (char *) stackaddr;
+#endif
   iattr->flags |= ATTR_FLAG_STACKADDR;
 
   return 0;
@@ -81,7 +85,11 @@
 #  endif
 
   iattr->stacksize = stacksize;
+#if _STACK_GROWS_DOWN
   iattr->stackaddr = (char *) stackaddr + stacksize;
+#else
+  iattr->stackaddr = (char *) stackaddr;
+#endif
   iattr->flags |= ATTR_FLAG_STACKADDR;
 
   return 0;
Index: eglibc-2.13/nptl/pthread_create.c
===================================================================
--- eglibc-2.13.orig/nptl/pthread_create.c	2011-09-04 12:38:04.000000000 -0400
+++ eglibc-2.13/nptl/pthread_create.c	2011-09-04 12:41:22.000000000 -0400
@@ -392,12 +392,25 @@
 #ifdef _STACK_GROWS_DOWN
   char *sp = CURRENT_STACK_FRAME;
   size_t freesize = (sp - (char *) pd->stackblock) & ~pagesize_m1;
-#else
-# error "to do"
-#endif
   assert (freesize < pd->stackblock_size);
   if (freesize > PTHREAD_STACK_MIN)
     madvise (pd->stackblock, freesize - PTHREAD_STACK_MIN, MADV_DONTNEED);
+#else
+  /* Page aligned start of memory to free (higher than or equal 
+     to current sp plus the minimum stack size).  */
+  void *freeblock = (void*)((size_t)(CURRENT_STACK_FRAME 
+				     + PTHREAD_STACK_MIN 
+				     + pagesize_m1) 
+				    & ~pagesize_m1);
+  char *free_end = (char *) (((uintptr_t) pd - pd->guardsize) & ~pagesize_m1);
+  /* Is there any space to free?  */
+  if (free_end > (char *)freeblock)
+    {
+      size_t freesize = (size_t)(free_end - (char *)freeblock);
+      assert (freesize < pd->stackblock_size);
+      madvise (freeblock, freesize, MADV_DONTNEED);
+    }
+#endif
 
   /* If the thread is detached free the TCB.  */
   if (IS_DETACHED (pd))
Index: eglibc-2.13/nptl/pthread_getattr_np.c
===================================================================
--- eglibc-2.13.orig/nptl/pthread_getattr_np.c	2011-09-04 12:38:22.000000000 -0400
+++ eglibc-2.13/nptl/pthread_getattr_np.c	2011-09-04 12:41:22.000000000 -0400
@@ -1,4 +1,5 @@
-/* Copyright (C) 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2006, 2007, 
+   2010 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -61,7 +62,11 @@
   if (__builtin_expect (thread->stackblock != NULL, 1))
     {
       iattr->stacksize = thread->stackblock_size;
+#ifdef _STACK_GROWS_DOWN
       iattr->stackaddr = (char *) thread->stackblock + iattr->stacksize;
+#else
+      iattr->stackaddr = (char *) thread->stackblock;
+#endif
     }
   else
     {
@@ -110,13 +115,21 @@
 		    {
 		      /* Found the entry.  Now we have the info we need.  */
 		      iattr->stacksize = rl.rlim_cur;
+#ifdef _STACK_GROWS_DOWN
 		      iattr->stackaddr = (void *) to;
 
 		      /* The limit might be too high.  */
 		      if ((size_t) iattr->stacksize
 			  > (size_t) iattr->stackaddr - last_to)
 			iattr->stacksize = (size_t) iattr->stackaddr - last_to;
+#else
+		      iattr->stackaddr = (void *) from;
 
+		      /* The limit might be too high.  */
+		      if ((size_t) iattr->stacksize
+			  > to - (size_t) iattr->stackaddr)
+			iattr->stacksize = to - (size_t) iattr->stackaddr;
+#endif
 		      /* We succeed and no need to look further.  */
 		      ret = 0;
 		      break;
Index: eglibc-2.13/nptl/pthread_mutex_trylock.c
===================================================================
--- eglibc-2.13.orig/nptl/pthread_mutex_trylock.c	2011-09-04 12:38:45.000000000 -0400
+++ eglibc-2.13/nptl/pthread_mutex_trylock.c	2011-09-04 12:41:22.000000000 -0400
@@ -240,7 +240,8 @@
 							  private), 0, 0);
 
 	    if (INTERNAL_SYSCALL_ERROR_P (e, __err)
-		&& INTERNAL_SYSCALL_ERRNO (e, __err) == EWOULDBLOCK)
+		&& ((INTERNAL_SYSCALL_ERRNO (e, __err) == EWOULDBLOCK)
+		    || (INTERNAL_SYSCALL_ERRNO (e, __err) == EAGAIN)))
 	      {
 		THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
 
Index: eglibc-2.13/nptl/sysdeps/pthread/aio_misc.h
===================================================================
--- eglibc-2.13.orig/nptl/sysdeps/pthread/aio_misc.h	2011-09-04 12:39:12.000000000 -0400
+++ eglibc-2.13/nptl/sysdeps/pthread/aio_misc.h	2011-09-04 12:41:22.000000000 -0400
@@ -51,7 +51,7 @@
 	  {								      \
 	    status = lll_futex_timed_wait (futexaddr, oldval, timeout,	      \
 					   LLL_PRIVATE);		      \
-	    if (status != -EWOULDBLOCK)					      \
+	    if (status != -EWOULDBLOCK && status != -EAGAIN)		      \
 	      break;							      \
 									      \
 	    oldval = *futexaddr;					      \
@@ -66,7 +66,7 @@
 	else if (status == -ETIMEDOUT)					      \
 	  result = EAGAIN;						      \
 	else								      \
-	  assert (status == 0 || status == -EWOULDBLOCK);		      \
+	  assert (status == 0 || status == -EWOULDBLOCK || status == -EAGAIN);\
 									      \
 	pthread_mutex_lock (&__aio_requests_mutex);			      \
       }									      \
Index: eglibc-2.13/nptl/sysdeps/pthread/gai_misc.h
===================================================================
--- eglibc-2.13.orig/nptl/sysdeps/pthread/gai_misc.h	2011-09-04 12:39:40.000000000 -0400
+++ eglibc-2.13/nptl/sysdeps/pthread/gai_misc.h	2011-09-04 12:41:22.000000000 -0400
@@ -52,7 +52,7 @@
 	  {								      \
 	    status = lll_futex_timed_wait (futexaddr, oldval, timeout,	      \
 					   LLL_PRIVATE);		      \
-	    if (status != -EWOULDBLOCK)					      \
+	    if (status != -EWOULDBLOCK && status != -EAGAIN)		      \
 	      break;							      \
 									      \
 	    oldval = *futexaddr;					      \
@@ -67,7 +67,7 @@
 	else if (status == -ETIMEDOUT)					      \
 	  result = EAGAIN;						      \
 	else								      \
-	  assert (status == 0 || status == -EWOULDBLOCK);		      \
+	  assert (status == 0 || status == -EWOULDBLOCK || status == -EAGAIN);\
 									      \
 	pthread_mutex_lock (&__gai_requests_mutex);			      \
       }									      \
Index: eglibc-2.13/nptl/sysdeps/unix/sysv/linux/sem_timedwait.c
===================================================================
--- eglibc-2.13.orig/nptl/sysdeps/unix/sysv/linux/sem_timedwait.c	2011-09-04 12:40:07.000000000 -0400
+++ eglibc-2.13/nptl/sysdeps/unix/sysv/linux/sem_timedwait.c	2011-09-04 12:41:22.000000000 -0400
@@ -90,7 +90,7 @@
       /* Disable asynchronous cancellation.  */
       __pthread_disable_asynccancel (oldtype);
 
-      if (err != 0 && err != -EWOULDBLOCK)
+      if (err != 0 && err != -EWOULDBLOCK && err != -EAGAIN)
 	{
 	  __set_errno (-err);
 	  err = -1;
Index: eglibc-2.13/nptl/sysdeps/unix/sysv/linux/sem_wait.c
===================================================================
--- eglibc-2.13.orig/nptl/sysdeps/unix/sysv/linux/sem_wait.c	2011-09-04 12:40:30.000000000 -0400
+++ eglibc-2.13/nptl/sysdeps/unix/sysv/linux/sem_wait.c	2011-09-04 12:41:22.000000000 -0400
@@ -62,7 +62,7 @@
       /* Disable asynchronous cancellation.  */
       __pthread_disable_asynccancel (oldtype);
 
-      if (err != 0 && err != -EWOULDBLOCK)
+      if (err != 0 && err != -EWOULDBLOCK && err != -EAGAIN)
 	{
 	  __set_errno (-err);
 	  err = -1;
@@ -107,7 +107,7 @@
       /* Disable asynchronous cancellation.  */
       __pthread_disable_asynccancel (oldtype);
     }
-  while (err == 0 || err == -EWOULDBLOCK);
+  while (err == 0 || err == -EWOULDBLOCK || err == -EAGAIN);
 
   __set_errno (-err);
   return -1;

--Apple-Mail-35--15589280
Content-Disposition: attachment; filename="ports-2011-08-31.diff"
Content-Type: application/octet-stream; x-unix-mode=0644;
	name="ports-2011-08-31.diff"
Content-Transfer-Encoding: 7bit

Index: eglibc-2.13/ports/ChangeLog.hppa
===================================================================
--- eglibc-2.13.orig/ports/ChangeLog.hppa	2011-09-04 14:13:02.000000000 -0400
+++ eglibc-2.13/ports/ChangeLog.hppa	2011-09-04 14:20:23.000000000 -0400
@@ -1,3 +1,8 @@
+2010-10-29  Carlos O'Donell  <carlos@codesourcery.com>
+
+	* sysdeps/hppa/dl-machine.h: Update copyright year.
+	(ELF_MACHINE_BEFORE_RTLD_RELOC): Call _dl_fptr_init.
+
 2010-06-24  Carlos O'Donell  <carlos@codesourcery.com>
 
 	* sysdeps/unix/sysv/linux/hppa/nptl/pt-vfork.S: Only create stack 
Index: eglibc-2.13/ports/sysdeps/hppa/configure
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/configure	2011-09-04 14:13:32.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/configure	2011-09-04 14:34:35.000000000 -0400
@@ -1,19 +1,101 @@
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+        X"$0" : 'X\(//\)$' \| \
+        X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+           s//\1/
+           q
+         }
+         /^X\/\(\/\/\)$/{
+           s//\1/
+           q
+         }
+         /^X\/\(\/\).*/{
+           s//\1/
+           q
+         }
+         s/.*/./; q'`
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
 
-{ $as_echo "$as_me:$LINENO: checking for assembler line separator" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for assembler line separator" >&5
 $as_echo_n "checking for assembler line separator... " >&6; }
-if test "${libc_cv_asm_line_sep+set}" = set; then
+if test "${libc_cv_asm_line_sep+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.s <<EOF
 nop ; is_old_puffin
 EOF
 if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
   libc_cv_asm_line_sep='!'
 else
   if test -z "$enable_hacker_mode"; then
@@ -25,7 +107,7 @@
 fi
 rm -f conftest*
 fi
-{ $as_echo "$as_me:$LINENO: result: $libc_cv_asm_line_sep" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_line_sep" >&5
 $as_echo "$libc_cv_asm_line_sep" >&6; }
 cat >>confdefs.h <<_ACEOF
 #define ASM_LINE_SEP $libc_cv_asm_line_sep
Index: eglibc-2.13/ports/sysdeps/hppa/dl-fptr.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/dl-fptr.h	2011-09-04 14:14:04.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/dl-fptr.h	2011-09-04 14:20:23.000000000 -0400
@@ -22,6 +22,9 @@
 
 #include <sysdeps/generic/dl-fptr.h>
 
+/* Initialize function pointer code. Call before relocation processing.  */
+extern void _dl_fptr_init (void);
+
 /* There are currently 33 dynamic symbols in ld.so.
    ELF_MACHINE_BOOT_FPTR_TABLE_LEN needs to be at least that big.  */
 #define ELF_MACHINE_BOOT_FPTR_TABLE_LEN 64	
Index: eglibc-2.13/ports/sysdeps/hppa/dl-machine.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/dl-machine.h	2011-09-04 14:14:30.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/dl-machine.h	2011-09-04 14:20:23.000000000 -0400
@@ -1,6 +1,5 @@
 /* Machine-dependent ELF dynamic relocation inline functions.  PA-RISC version.
-   Copyright (C) 1995-1997,1999-2003
-	Free Software Foundation, Inc.
+   Copyright (C) 1995-1997,1999-2003, 2010 Free Software Foundation, Inc.
    Contributed by David Huggins-Daines <dhd@debian.org>
    This file is part of the GNU C Library.
 
Index: eglibc-2.13/ports/sysdeps/hppa/dl-tls.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/dl-tls.h	2011-09-04 14:14:57.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/dl-tls.h	2011-09-04 14:20:23.000000000 -0400
@@ -1,5 +1,5 @@
 /* Thread-local storage handling in the ELF dynamic linker.  hppa version.
-   Copyright (C) 2003 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -27,3 +27,6 @@
 
 
 extern void *__tls_get_addr (tls_index *ti);
+
+/* Value used for dtv entries for which the allocation is delayed.  */
+#define TLS_DTV_UNALLOCATED	((void *) -1l)
Index: eglibc-2.13/ports/sysdeps/hppa/elf/configure
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/elf/configure	2011-09-04 14:15:24.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/elf/configure	2011-09-04 14:45:59.000000000 -0400
@@ -1,12 +1,94 @@
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+        X"$0" : 'X\(//\)$' \| \
+        X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+           s//\1/
+           q
+         }
+         /^X\/\(\/\/\)$/{
+           s//\1/
+           q
+         }
+         /^X\/\(\/\).*/{
+           s//\1/
+           q
+         }
+         s/.*/./; q'`
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/hppa/elf.
 
 if test "$usetls" != no; then
 # Check for support of thread-local storage handling in assembler and
 # linker.
-{ $as_echo "$as_me:$LINENO: checking for hppa TLS support" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for hppa TLS support" >&5
 $as_echo_n "checking for hppa TLS support... " >&6; }
-if test "${libc_cv_hppa_tls+set}" = set; then
+if test "${libc_cv_hppa_tls+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.s <<\EOF
@@ -41,23 +123,21 @@
 ; Done all the TLS tests.
 EOF
 if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
   libc_cv_hppa_tls=yes
 else
   libc_cv_hppa_tls=no
 fi
 rm -f conftest*
 fi
-{ $as_echo "$as_me:$LINENO: result: $libc_cv_hppa_tls" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_hppa_tls" >&5
 $as_echo "$libc_cv_hppa_tls" >&6; }
 if test $libc_cv_hppa_tls = yes; then
-  cat >>confdefs.h <<\_ACEOF
-#define HAVE_TLS_SUPPORT 1
-_ACEOF
+  $as_echo "#define HAVE_TLS_SUPPORT 1" >>confdefs.h
 
 fi
 fi
Index: eglibc-2.13/ports/sysdeps/hppa/fpu/fegetenv.c
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/fpu/fegetenv.c	2011-09-04 14:15:52.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/fpu/fegetenv.c	2011-09-04 14:20:23.000000000 -0400
@@ -1,5 +1,5 @@
 /* Store current floating-point environment.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by David Huggins-Daines <dhd@debian.org>, 2000
 
Index: eglibc-2.13/ports/sysdeps/hppa/fpu/feupdateenv.c
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/fpu/feupdateenv.c	2011-09-04 14:16:18.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/fpu/feupdateenv.c	2011-09-04 14:20:23.000000000 -0400
@@ -1,5 +1,5 @@
 /* Install given floating-point environment and raise exceptions.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by David Huggins-Daines <dhd@debian.org>, 2000
 
Index: eglibc-2.13/ports/sysdeps/hppa/fpu/ftestexcept.c
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/fpu/ftestexcept.c	2011-09-04 14:16:49.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/fpu/ftestexcept.c	2011-09-04 14:20:23.000000000 -0400
@@ -1,5 +1,5 @@
 /* Test exception in current environment.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by David Huggins-Daines <dhd@debian.org>, 2000
 
Index: eglibc-2.13/ports/sysdeps/hppa/stackinfo.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/hppa/stackinfo.h	2011-09-04 14:17:22.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/hppa/stackinfo.h	2011-09-04 14:20:23.000000000 -0400
@@ -22,6 +22,12 @@
 #ifndef _STACKINFO_H
 #define _STACKINFO_H	1
 
+#include <elf.h>
+
+/* Default to an executable stack.  PF_X can be overridden if PT_GNU_STACK is
+ * present, but it is presumed absent.  */
+#define DEFAULT_STACK_PERMS (PF_R|PF_W|PF_X)
+
 /* On PA the stack grows up.  */
 #define _STACK_GROWS_UP	1
 
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/bits/fcntl.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/unix/sysv/linux/hppa/bits/fcntl.h	2011-09-04 14:17:42.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/bits/fcntl.h	2011-09-04 14:20:23.000000000 -0400
@@ -1,5 +1,5 @@
-/* O_*, F_*, FD_* bit values for Linux/HPPA.
-   Copyright (C) 1995,1996,1997,1998,1999,2000,2002,2004
+/* O_*, F_*, FD_* bit values for Linux.
+   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2004, 2010
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -29,7 +29,7 @@
 
 
 /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
-   located on an ext2 file system */
+   located on a few file systems.  */
 #define O_ACCMODE	   0003
 #define O_RDONLY	     00
 #define O_WRONLY	     01
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h	2011-09-04 14:18:10.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h	2011-09-04 14:20:23.000000000 -0400
@@ -61,11 +61,53 @@
    
 # undef PSEUDO
 # define PSEUDO(name, syscall_name, args)				\
+	ENTRY (__##syscall_name##_nocancel)				\
+	DOARGS_##args					ASM_LINE_SEP	\
+	stwm TREG, 64(%sp)				ASM_LINE_SEP	\
+	.cfi_offset TREG, 0				ASM_LINE_SEP	\
+	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	\
+	stw %sp, -4(%sp)				ASM_LINE_SEP	\
+	.cfi_offset 30, -4				ASM_LINE_SEP	\
+	stw %r19, -32(%sp)				ASM_LINE_SEP	\
+	.cfi_offset 19, -32				ASM_LINE_SEP	\
+	/* Save r19 */					ASM_LINE_SEP	\
+	SAVE_PIC(TREG)					ASM_LINE_SEP	\
+	/* Do syscall, delay loads # */			ASM_LINE_SEP	\
+	ble  0x100(%sr2,%r0)				ASM_LINE_SEP	\
+	ldi SYS_ify (syscall_name), %r20 /* delay */	ASM_LINE_SEP	\
+	ldi NO_ERROR,%r1				ASM_LINE_SEP	\
+	cmpb,>>=,n %r1,%ret0,L(pre_nc_end)		ASM_LINE_SEP	\
+	/* Restore r19 from TREG */			ASM_LINE_SEP	\
+	LOAD_PIC(TREG) /* delay */			ASM_LINE_SEP	\
+	SYSCALL_ERROR_HANDLER				ASM_LINE_SEP	\
+	/* Use TREG for temp storage */			ASM_LINE_SEP	\
+	copy %ret0, TREG /* delay */			ASM_LINE_SEP	\
+	/* OPTIMIZE: Don't reload r19 */		ASM_LINE_SEP	\
+	/* do a -1*syscall_ret0 */			ASM_LINE_SEP	\
+	sub %r0, TREG, TREG				ASM_LINE_SEP	\
+	/* Store into errno location */			ASM_LINE_SEP	\
+	stw TREG, 0(%sr0,%ret0)				ASM_LINE_SEP	\
+	/* return -1 as error */			ASM_LINE_SEP	\
+	ldi -1, %ret0					ASM_LINE_SEP	\
+L(pre_nc_end):						ASM_LINE_SEP	\
+	/* No need to LOAD_PIC */			ASM_LINE_SEP	\
+	/* Undo frame */				ASM_LINE_SEP	\
+	ldwm -64(%sp),TREG				ASM_LINE_SEP	\
+	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	\
+	/* Restore rp before exit */			ASM_LINE_SEP	\
+	ldw -20(%sp), %rp				ASM_LINE_SEP	\
+	.cfi_restore 2					ASM_LINE_SEP	\
+	ret						ASM_LINE_SEP	\
+	END(__##syscall_name##_nocancel)		ASM_LINE_SEP	\
+	/**********************************************/ASM_LINE_SEP	\
 	ENTRY (name)							\
 	DOARGS_##args					ASM_LINE_SEP	\
 	stwm TREG, 64(%sp)				ASM_LINE_SEP	\
+	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	\
 	stw %sp, -4(%sp)				ASM_LINE_SEP	\
+	.cfi_offset 30, -4				ASM_LINE_SEP	\
 	stw %r19, -32(%sp)				ASM_LINE_SEP	\
+	.cfi_offset 19, -32				ASM_LINE_SEP	\
 	/* Done setting up frame, continue... */	ASM_LINE_SEP	\
 	SINGLE_THREAD_P					ASM_LINE_SEP	\
 	cmpib,<>,n 0,%ret0,L(pseudo_cancel)		ASM_LINE_SEP	\
@@ -128,26 +170,40 @@
 	/* No need to LOAD_PIC */			ASM_LINE_SEP	\
 	/* Undo frame */				ASM_LINE_SEP	\
 	ldwm -64(%sp),TREG				ASM_LINE_SEP	\
+	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	\
 	/* Restore rp before exit */			ASM_LINE_SEP	\
-	ldw -20(%sp), %rp				ASM_LINE_SEP
+	ldw -20(%sp), %rp				ASM_LINE_SEP	\
+	.cfi_restore 2					ASM_LINE_SEP
 
 /* Save arguments into our frame */
 # define PUSHARGS_0	/* nothing to do */
-# define PUSHARGS_1	PUSHARGS_0 stw %r26, -36(%sr0,%sp)	ASM_LINE_SEP
-# define PUSHARGS_2	PUSHARGS_1 stw %r25, -40(%sr0,%sp)	ASM_LINE_SEP
-# define PUSHARGS_3	PUSHARGS_2 stw %r24, -44(%sr0,%sp)	ASM_LINE_SEP
-# define PUSHARGS_4	PUSHARGS_3 stw %r23, -48(%sr0,%sp)	ASM_LINE_SEP
-# define PUSHARGS_5	PUSHARGS_4 stw %r22, -52(%sr0,%sp)	ASM_LINE_SEP 
-# define PUSHARGS_6	PUSHARGS_5 stw %r21, -56(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_1	PUSHARGS_0 stw %r26, -36(%sr0,%sp)	ASM_LINE_SEP	\
+			.cfi_offset 26, -36			ASM_LINE_SEP
+# define PUSHARGS_2	PUSHARGS_1 stw %r25, -40(%sr0,%sp)	ASM_LINE_SEP	\
+			.cfi_offset 25, -40			ASM_LINE_SEP
+# define PUSHARGS_3	PUSHARGS_2 stw %r24, -44(%sr0,%sp)	ASM_LINE_SEP	\
+			.cfi_offset 24, -44			ASM_LINE_SEP
+# define PUSHARGS_4	PUSHARGS_3 stw %r23, -48(%sr0,%sp)	ASM_LINE_SEP	\
+			.cfi_offset 23, -48			ASM_LINE_SEP
+# define PUSHARGS_5	PUSHARGS_4 stw %r22, -52(%sr0,%sp)	ASM_LINE_SEP	\
+			.cfi_offset 22, -52			ASM_LINE_SEP
+# define PUSHARGS_6	PUSHARGS_5 stw %r21, -56(%sr0,%sp)	ASM_LINE_SEP	\
+			.cfi_offset 21, -56			ASM_LINE_SEP
 
 /* Bring them back from the stack */
 # define POPARGS_0	/* nothing to do */
-# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	ASM_LINE_SEP
-# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	ASM_LINE_SEP
-# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	ASM_LINE_SEP
-# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	ASM_LINE_SEP
-# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	ASM_LINE_SEP
-# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	ASM_LINE_SEP
+# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	ASM_LINE_SEP	\
+			.cfi_restore 26				ASM_LINE_SEP
+# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	ASM_LINE_SEP	\
+			.cfi_restore 25				ASM_LINE_SEP
+# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	ASM_LINE_SEP	\
+			.cfi_restore 24				ASM_LINE_SEP
+# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	ASM_LINE_SEP	\
+			.cfi_restore 23				ASM_LINE_SEP
+# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	ASM_LINE_SEP	\
+			.cfi_restore 22				ASM_LINE_SEP
+# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	ASM_LINE_SEP	\
+			.cfi_restore 21				ASM_LINE_SEP
 
 # ifdef IS_IN_libpthread
 #  ifdef PIC
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/procfs.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/unix/sysv/linux/hppa/sys/procfs.h	2011-09-04 14:18:44.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/procfs.h	2011-09-04 14:20:23.000000000 -0400
@@ -29,10 +29,8 @@
    GDB unless you know what you are doing.  */
 
 #include <features.h>
-#include <signal.h>
 #include <sys/time.h>
 #include <sys/types.h>
-#include <sys/ucontext.h>
 #include <sys/user.h>
 
 __BEGIN_DECLS
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sysdep.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/unix/sysv/linux/hppa/sysdep.h	2011-09-04 14:19:27.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sysdep.h	2011-09-04 14:20:23.000000000 -0400
@@ -22,7 +22,6 @@
 
 #include <asm/unistd.h>
 #include <sysdeps/generic/sysdep.h>
-#include <sys/syscall.h>
 
 /* In order to get __set_errno() definition in INLINE_SYSCALL.  */
 #ifndef __ASSEMBLER__
@@ -35,32 +34,28 @@
 #undef SYS_ify
 #define SYS_ify(syscall_name)	(__NR_##syscall_name)
 
+/* The vfork, fork, and clone syscalls clobber r19
+ * and r21. We list r21 as either clobbered or as an
+ * input to a 6-argument syscall. We must save and
+ * restore r19 in both PIC and non-PIC cases.
+ */ 
 /* WARNING: TREG must be a callee saves register so 
    that it doesn't have to be restored after a call 
    to another function */
-#ifdef PIC
-# define TREG %r3
-# define SAVE_PIC(SREG) copy %r19, SREG ASM_LINE_SEP
-# define LOAD_PIC(LREG) copy LREG, %r19 ASM_LINE_SEP
-/* Inline assembly defines */
-# define TREG_ASM "%r4" /* Cant clobber r3, it holds framemarker */
-# define SAVE_ASM_PIC	"       copy %%r19, %" TREG_ASM "\n"
-# define LOAD_ASM_PIC	"       copy %" TREG_ASM ", %%r19\n"
-# define CLOB_TREG	TREG_ASM ,
-# define PIC_REG_DEF	register unsigned long __r19 asm("r19");
-# define PIC_REG_USE	, "r" (__r19)
-#else
-# define TREG %r3
-# define SAVE_PIC(SREG) nop ASM_LINE_SEP
-# define LOAD_PIC(LREG) nop ASM_LINE_SEP
+#define TREG 4
+#define SAVE_PIC(SREG) \
+	copy %r19, SREG ASM_LINE_SEP	\
+	.cfi_register 19, SREG
+#define LOAD_PIC(LREG) \
+	copy LREG , %r19 ASM_LINE_SEP	\
+	.cfi_restore 19
 /* Inline assembly defines */
-# define TREG_ASM 
-# define SAVE_ASM_PIC	"nop \n"
-# define LOAD_ASM_PIC	"nop \n"
-# define CLOB_TREG
-# define PIC_REG_DEF
-# define PIC_REG_USE
-#endif
+#define TREG_ASM "%r4" /* Cant clobber r3, it holds framemarker */
+#define SAVE_ASM_PIC	"       copy %%r19, %" TREG_ASM "\n"
+#define LOAD_ASM_PIC	"       copy %" TREG_ASM ", %%r19\n"
+#define CLOB_TREG	TREG_ASM ,
+#define PIC_REG_DEF	register unsigned long __r19 asm("r19");
+#define PIC_REG_USE	, "r" (__r19)
 
 #ifdef __ASSEMBLER__
 
@@ -127,12 +122,14 @@
 	.align ALIGNARG(4)				ASM_LINE_SEP	\
 	.export C_SYMBOL_NAME(name)			ASM_LINE_SEP	\
 	.type	C_SYMBOL_NAME(name),@function		ASM_LINE_SEP	\
+	cfi_startproc					ASM_LINE_SEP	\
 	C_LABEL(name)					ASM_LINE_SEP	\
 	.PROC						ASM_LINE_SEP	\
 	.CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=3	ASM_LINE_SEP	\
 	.ENTRY						ASM_LINE_SEP	\
 	/* SAVE_RP says we do */			ASM_LINE_SEP	\
 	stw %rp, -20(%sr0,%sp)				ASM_LINE_SEP	\
+	.cfi_offset 2, -20				ASM_LINE_SEP	\
 	/*FIXME: Call mcount? (carefull with stack!) */
 
 /* Some syscall wrappers do not call other functions, and
@@ -142,18 +139,21 @@
 	.align ALIGNARG(4)				ASM_LINE_SEP	\
 	.export C_SYMBOL_NAME(name)			ASM_LINE_SEP	\
 	.type	C_SYMBOL_NAME(name),@function		ASM_LINE_SEP	\
+	cfi_startproc					ASM_LINE_SEP	\
 	C_LABEL(name)					ASM_LINE_SEP	\
 	.PROC						ASM_LINE_SEP	\
 	.CALLINFO FRAME=64,NO_CALLS,SAVE_RP,ENTRY_GR=3	ASM_LINE_SEP	\
 	.ENTRY						ASM_LINE_SEP	\
 	/* SAVE_RP says we do */			ASM_LINE_SEP	\
 	stw %rp, -20(%sr0,%sp)				ASM_LINE_SEP	\
+	.cfi_offset 2, -20				ASM_LINE_SEP	\
 	/*FIXME: Call mcount? (carefull with stack!) */
 
 #undef	END
 #define END(name)							\
   	.EXIT						ASM_LINE_SEP	\
 	.PROCEND					ASM_LINE_SEP	\
+	cfi_endproc					ASM_LINE_SEP	\
 .size	C_SYMBOL_NAME(name), .-C_SYMBOL_NAME(name)	ASM_LINE_SEP
 
 /* If compiled for profiling, call `mcount' at the start 
@@ -170,9 +170,7 @@
    which means
 	ENTRY(name)
 	DO_CALL(...)
-	nop
-	bv 0(2)
-	nop
+	bv,n 0(2)
 */
 
 #define	PSEUDO(name, syscall_name, args)			\
@@ -180,8 +178,7 @@
   /* If necc. load args from stack */		ASM_LINE_SEP	\
   DOARGS_##args					ASM_LINE_SEP	\
   DO_CALL (syscall_name, args)			ASM_LINE_SEP	\
-  UNDOARGS_##args				ASM_LINE_SEP	\
-  nop						ASM_LINE_SEP
+  UNDOARGS_##args				ASM_LINE_SEP
 
 #define ret \
   /* Return value set by ERRNO code */		ASM_LINE_SEP	\
@@ -196,8 +193,7 @@
   ENTRY_LEAF (name)				ASM_LINE_SEP	\
   DOARGS_##args					ASM_LINE_SEP	\
   DO_CALL_NOERRNO (syscall_name, args)		ASM_LINE_SEP	\
-  UNDOARGS_##args				ASM_LINE_SEP	\
-  nop						ASM_LINE_SEP
+  UNDOARGS_##args				ASM_LINE_SEP
 
 #define ret_NOERRNO ret
 
@@ -211,8 +207,7 @@
   ENTRY_LEAF (name)				ASM_LINE_SEP	\
   DOARGS_##args					ASM_LINE_SEP	\
   DO_CALL_ERRVAL (syscall_name, args)		ASM_LINE_SEP	\
-  UNDOARGS_##args				ASM_LINE_SEP	\
-  nop						ASM_LINE_SEP
+  UNDOARGS_##args				ASM_LINE_SEP
 
 #define ret_ERRVAL ret
 
@@ -290,8 +285,12 @@
 #define DO_CALL(syscall_name, args)				\
 	/* Create a frame */			ASM_LINE_SEP	\
 	stwm TREG, 64(%sp)			ASM_LINE_SEP	\
+	.cfi_offset TREG, 0			ASM_LINE_SEP	\
+	.cfi_adjust_cfa_offset 64		ASM_LINE_SEP	\
 	stw %sp, -4(%sp)			ASM_LINE_SEP	\
+	.cfi_offset 30, -4			ASM_LINE_SEP	\
 	stw %r19, -32(%sp)			ASM_LINE_SEP	\
+	.cfi_offset 19, -32			ASM_LINE_SEP	\
 	/* Save r19 */				ASM_LINE_SEP	\
 	SAVE_PIC(TREG)				ASM_LINE_SEP	\
 	/* Do syscall, delay loads # */		ASM_LINE_SEP	\
@@ -314,8 +313,10 @@
 L(pre_end):					ASM_LINE_SEP	\
 	/* Restore our frame, restoring TREG */	ASM_LINE_SEP	\
 	ldwm -64(%sp), TREG			ASM_LINE_SEP	\
+	.cfi_adjust_cfa_offset -64		ASM_LINE_SEP	\
 	/* Restore return pointer */		ASM_LINE_SEP	\
-	ldw -20(%sp),%rp			ASM_LINE_SEP
+	ldw -20(%sp),%rp			ASM_LINE_SEP	\
+	.cfi_restore 2				ASM_LINE_SEP
 
 /* We do nothing with the return, except hand it back to someone else */
 #undef  DO_CALL_NOERRNO

--Apple-Mail-35--15589280
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	name="ports-2011-09-17.diff"
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Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h
===================================================================
--- eglibc-2.13.orig/ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h	2011-09-05 00:09:53.000000000 -0400
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h	2011-09-17 23:07:14.000000000 -0400
@@ -288,18 +288,20 @@
   __lll_robust_timedlock (&(futex), abstime, id, private)
 
 #define __lll_unlock(futex, private) \
-  (void)					\
-  ({ int val = atomic_exchange_rel (futex, 0);  \
-     if (__builtin_expect (val > 1, 0))         \
-       lll_futex_wake (futex, 1, private);      \
+  (void)						\
+  ({ int *__futex = (futex);				\
+     int val = atomic_exchange_rel (__futex, 0);	\
+     if (__builtin_expect (val > 1, 0))			\
+       lll_futex_wake (__futex, 1, private);		\
   })
 #define lll_unlock(futex, private) __lll_unlock(&(futex), private)
 
 #define  __lll_robust_unlock(futex,private) \
-  (void)                                               \
-    ({ int val = atomic_exchange_rel (futex, 0);       \
-       if (__builtin_expect (val & FUTEX_WAITERS, 0))  \
-         lll_futex_wake (futex, 1, private);           \
+  (void)						\
+    ({ int *__futex = (futex);				\
+       int val = atomic_exchange_rel (__futex, 0);	\
+       if (__builtin_expect (val & FUTEX_WAITERS, 0))	\
+         lll_futex_wake (__futex, 1, private);		\
     })
 #define lll_robust_unlock(futex, private) \
   __lll_robust_unlock(&(futex), private)

--Apple-Mail-35--15589280
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Index: eglibc-2.13/ports/ChangeLog.hppa
===================================================================
--- eglibc-2.13.orig/ports/ChangeLog.hppa	2011-09-24 18:40:01.000000000 -0400
+++ eglibc-2.13/ports/ChangeLog.hppa	2011-10-30 11:43:20.000000000 -0400
@@ -3,6 +3,19 @@
 	* sysdeps/hppa/dl-machine.h: Update copyright year.
 	(ELF_MACHINE_BEFORE_RTLD_RELOC): Call _dl_fptr_init.
 
+2010-08-06  Guy Martin <gmsoft@tuxicoman.be>
+
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/epoll.h:
+	Fix EPOLL_CLOEXEC and EPOLL_NONBLOCK to match kernel definition.
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/eventfd.h:
+	Fix EFD_CLOEXEC and EFD_NONBLOCK to match kernel definition.
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/inotify.h:
+	Fix IN_CLOEXEC and IN_NONBLOCK to match kernel definition.
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/signalfd.h:
+	Fix SFD_CLOEXEC and SFD_NONBLOCK to match kernel definition.
+	* ports/sysdeps/unix/sysv/linux/hppa/sys/timerfd.h:
+	Fix TFD_CLOEXEC and TFD_NONBLOCK to match kernel definition.
+
 2010-06-24  Carlos O'Donell  <carlos@codesourcery.com>
 
 	* sysdeps/unix/sysv/linux/hppa/nptl/pt-vfork.S: Only create stack 
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/epoll.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/epoll.h	2011-10-30 11:44:30.000000000 -0400
@@ -0,0 +1,144 @@
+/* Copyright (C) 2002-2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_EPOLL_H
+#define	_SYS_EPOLL_H	1
+
+#include <stdint.h>
+#include <sys/types.h>
+
+/* Get __sigset_t.  */
+#include <bits/sigset.h>
+
+#ifndef __sigset_t_defined
+# define __sigset_t_defined
+typedef __sigset_t sigset_t;
+#endif
+
+
+/* Flags to be passed to epoll_create1.  */
+enum
+  {
+    EPOLL_CLOEXEC = 010000000,
+#define EPOLL_CLOEXEC EPOLL_CLOEXEC
+    EPOLL_NONBLOCK = 00200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define EPOLL_NONBLOCK EPOLL_NONBLOCK
+  };
+
+
+enum EPOLL_EVENTS
+  {
+    EPOLLIN = 0x001,
+#define EPOLLIN EPOLLIN
+    EPOLLPRI = 0x002,
+#define EPOLLPRI EPOLLPRI
+    EPOLLOUT = 0x004,
+#define EPOLLOUT EPOLLOUT
+    EPOLLRDNORM = 0x040,
+#define EPOLLRDNORM EPOLLRDNORM
+    EPOLLRDBAND = 0x080,
+#define EPOLLRDBAND EPOLLRDBAND
+    EPOLLWRNORM = 0x100,
+#define EPOLLWRNORM EPOLLWRNORM
+    EPOLLWRBAND = 0x200,
+#define EPOLLWRBAND EPOLLWRBAND
+    EPOLLMSG = 0x400,
+#define EPOLLMSG EPOLLMSG
+    EPOLLERR = 0x008,
+#define EPOLLERR EPOLLERR
+    EPOLLHUP = 0x010,
+#define EPOLLHUP EPOLLHUP
+    EPOLLRDHUP = 0x2000,
+#define EPOLLRDHUP EPOLLRDHUP
+    EPOLLONESHOT = (1 << 30),
+#define EPOLLONESHOT EPOLLONESHOT
+    EPOLLET = (1 << 31)
+#define EPOLLET EPOLLET
+  };
+
+
+/* Valid opcodes ( "op" parameter ) to issue to epoll_ctl().  */
+#define EPOLL_CTL_ADD 1	/* Add a file descriptor to the interface.  */
+#define EPOLL_CTL_DEL 2	/* Remove a file descriptor from the interface.  */
+#define EPOLL_CTL_MOD 3	/* Change file descriptor epoll_event structure.  */
+
+
+typedef union epoll_data
+{
+  void *ptr;
+  int fd;
+  uint32_t u32;
+  uint64_t u64;
+} epoll_data_t;
+
+struct epoll_event
+{
+  uint32_t events;	/* Epoll events */
+  epoll_data_t data;	/* User data variable */
+};
+
+
+__BEGIN_DECLS
+
+/* Creates an epoll instance.  Returns an fd for the new instance.
+   The "size" parameter is a hint specifying the number of file
+   descriptors to be associated with the new instance.  The fd
+   returned by epoll_create() should be closed with close().  */
+extern int epoll_create (int __size) __THROW;
+
+/* Same as epoll_create but with an FLAGS parameter.  The unused SIZE
+   parameter has been dropped.  */
+extern int epoll_create1 (int __flags) __THROW;
+
+
+/* Manipulate an epoll instance "epfd". Returns 0 in case of success,
+   -1 in case of error ( the "errno" variable will contain the
+   specific error code ) The "op" parameter is one of the EPOLL_CTL_*
+   constants defined above. The "fd" parameter is the target of the
+   operation. The "event" parameter describes which events the caller
+   is interested in and any associated user data.  */
+extern int epoll_ctl (int __epfd, int __op, int __fd,
+		      struct epoll_event *__event) __THROW;
+
+
+/* Wait for events on an epoll instance "epfd". Returns the number of
+   triggered events returned in "events" buffer. Or -1 in case of
+   error with the "errno" variable set to the specific error code. The
+   "events" parameter is a buffer that will contain triggered
+   events. The "maxevents" is the maximum number of events to be
+   returned ( usually size of "events" ). The "timeout" parameter
+   specifies the maximum wait time in milliseconds (-1 == infinite).
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int epoll_wait (int __epfd, struct epoll_event *__events,
+		       int __maxevents, int __timeout);
+
+
+/* Same as epoll_wait, but the thread's signal mask is temporarily
+   and atomically replaced with the one provided as parameter.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int epoll_pwait (int __epfd, struct epoll_event *__events,
+			int __maxevents, int __timeout,
+			__const __sigset_t *__ss);
+
+__END_DECLS
+
+#endif /* sys/epoll.h */
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/eventfd.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/eventfd.h	2011-10-30 11:44:30.000000000 -0400
@@ -0,0 +1,54 @@
+/* Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_EVENTFD_H
+#define	_SYS_EVENTFD_H	1
+
+#include <stdint.h>
+
+
+/* Type for event counter.  */
+typedef uint64_t eventfd_t;
+
+/* Flags for signalfd.  */
+enum
+  {
+    EFD_SEMAPHORE = 1,
+#define EFD_SEMAPHORE EFD_SEMAPHORE
+    EFD_CLOEXEC = 010000000,
+#define EFD_CLOEXEC EFD_CLOEXEC
+    EFD_NONBLOCK = 00200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define EFD_NONBLOCK EFD_NONBLOCK
+  };
+
+
+__BEGIN_DECLS
+
+/* Return file descriptor for generic event channel.  Set initial
+   value to COUNT.  */
+extern int eventfd (int __count, int __flags) __THROW;
+
+/* Read event counter and possibly wait for events.  */
+extern int eventfd_read (int __fd, eventfd_t *__value);
+
+/* Increment event counter.  */
+extern int eventfd_write (int __fd, eventfd_t __value);
+
+__END_DECLS
+
+#endif /* sys/eventfd.h */
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/inotify.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/inotify.h	2011-10-30 11:44:30.000000000 -0400
@@ -0,0 +1,105 @@
+/* Copyright (C) 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_INOTIFY_H
+#define	_SYS_INOTIFY_H	1
+
+#include <stdint.h>
+
+
+/* Flags for the parameter of inotify_init1.  */
+enum
+  {
+    IN_CLOEXEC = 010000000,
+#define IN_CLOEXEC IN_CLOEXEC
+    IN_NONBLOCK = 000200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define IN_NONBLOCK IN_NONBLOCK
+  };
+
+
+/* Structure describing an inotify event.  */
+struct inotify_event
+{
+  int wd;		/* Watch descriptor.  */
+  uint32_t mask;	/* Watch mask.  */
+  uint32_t cookie;	/* Cookie to synchronize two events.  */
+  uint32_t len;		/* Length (including NULs) of name.  */
+  char name __flexarr;	/* Name.  */
+};
+
+
+/* Supported events suitable for MASK parameter of INOTIFY_ADD_WATCH.  */
+#define IN_ACCESS	 0x00000001	/* File was accessed.  */
+#define IN_MODIFY	 0x00000002	/* File was modified.  */
+#define IN_ATTRIB	 0x00000004	/* Metadata changed.  */
+#define IN_CLOSE_WRITE	 0x00000008	/* Writtable file was closed.  */
+#define IN_CLOSE_NOWRITE 0x00000010	/* Unwrittable file closed.  */
+#define IN_CLOSE	 (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* Close.  */
+#define IN_OPEN		 0x00000020	/* File was opened.  */
+#define IN_MOVED_FROM	 0x00000040	/* File was moved from X.  */
+#define IN_MOVED_TO      0x00000080	/* File was moved to Y.  */
+#define IN_MOVE		 (IN_MOVED_FROM | IN_MOVED_TO) /* Moves.  */
+#define IN_CREATE	 0x00000100	/* Subfile was created.  */
+#define IN_DELETE	 0x00000200	/* Subfile was deleted.  */
+#define IN_DELETE_SELF	 0x00000400	/* Self was deleted.  */
+#define IN_MOVE_SELF	 0x00000800	/* Self was moved.  */
+
+/* Events sent by the kernel.  */
+#define IN_UNMOUNT	 0x00002000	/* Backing fs was unmounted.  */
+#define IN_Q_OVERFLOW	 0x00004000	/* Event queued overflowed.  */
+#define IN_IGNORED	 0x00008000	/* File was ignored.  */
+
+/* Helper events.  */
+#define IN_CLOSE	 (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE)	/* Close.  */
+#define IN_MOVE		 (IN_MOVED_FROM | IN_MOVED_TO)		/* Moves.  */
+
+/* Special flags.  */
+#define IN_ONLYDIR	 0x01000000	/* Only watch the path if it is a
+					   directory.  */
+#define IN_DONT_FOLLOW	 0x02000000	/* Do not follow a sym link.  */
+#define IN_MASK_ADD	 0x20000000	/* Add to the mask of an already
+					   existing watch.  */
+#define IN_ISDIR	 0x40000000	/* Event occurred against dir.  */
+#define IN_ONESHOT	 0x80000000	/* Only send event once.  */
+
+/* All events which a program can wait on.  */
+#define IN_ALL_EVENTS	 (IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE  \
+			  | IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM	      \
+			  | IN_MOVED_TO | IN_CREATE | IN_DELETE		      \
+			  | IN_DELETE_SELF | IN_MOVE_SELF)
+
+
+__BEGIN_DECLS
+
+/* Create and initialize inotify instance.  */
+extern int inotify_init (void) __THROW;
+
+/* Create and initialize inotify instance.  */
+extern int inotify_init1 (int __flags) __THROW;
+
+/* Add watch of object NAME to inotify instance FD.  Notify about
+   events specified by MASK.  */
+extern int inotify_add_watch (int __fd, const char *__name, uint32_t __mask)
+  __THROW;
+
+/* Remove the watch specified by WD from the inotify instance FD.  */
+extern int inotify_rm_watch (int __fd, int __wd) __THROW;
+
+__END_DECLS
+
+#endif /* sys/inotify.h */
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/signalfd.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/signalfd.h	2011-10-30 11:44:30.000000000 -0400
@@ -0,0 +1,66 @@
+/* Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_SIGNALFD_H
+#define	_SYS_SIGNALFD_H	1
+
+#define __need_sigset_t
+#include <signal.h>
+#include <stdint.h>
+
+
+struct signalfd_siginfo
+{
+  uint32_t ssi_signo;
+  int32_t ssi_errno;
+  int32_t ssi_code;
+  uint32_t ssi_pid;
+  uint32_t ssi_uid;
+  int32_t ssi_fd;
+  uint32_t ssi_tid;
+  uint32_t ssi_band;
+  uint32_t ssi_overrun;
+  uint32_t ssi_trapno;
+  int32_t ssi_status;
+  int32_t ssi_int;
+  uint64_t ssi_ptr;
+  uint64_t ssi_utime;
+  uint64_t ssi_stime;
+  uint64_t ssi_addr;
+  uint8_t __pad[48];
+};
+
+/* Flags for signalfd.  */
+enum
+  {
+    SFD_CLOEXEC = 010000000,
+#define SFD_CLOEXEC SFD_CLOEXEC
+    SFD_NONBLOCK = 00200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define SFD_NONBLOCK SFD_NONBLOCK
+  };
+
+__BEGIN_DECLS
+
+/* Request notification for delivery of signals in MASK to be
+   performed using descriptor FD.*/
+extern int signalfd (int __fd, const sigset_t *__mask, int __flags)
+  __THROW __nonnull ((2));
+
+__END_DECLS
+
+#endif /* sys/signalfd.h */
Index: eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/timerfd.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ eglibc-2.13/ports/sysdeps/unix/sysv/linux/hppa/sys/timerfd.h	2011-10-30 11:44:30.000000000 -0400
@@ -0,0 +1,60 @@
+/* Copyright (C) 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_TIMERFD_H
+#define	_SYS_TIMERFD_H	1
+
+#include <time.h>
+
+
+/* Bits to be set in the FLAGS parameter of `timerfd_create'.  */
+enum
+  {
+    TFD_CLOEXEC = 010000000,
+#define TFD_CLOEXEC TFD_CLOEXEC
+    TFD_NONBLOCK = 000200004 /* HPUX has separate NDELAY & NONBLOCK */
+#define TFD_NONBLOCK TFD_NONBLOCK
+  };
+
+
+/* Bits to be set in the FLAGS parameter of `timerfd_settime'.  */
+enum
+  {
+    TFD_TIMER_ABSTIME = 1 << 0
+#define TFD_TIMER_ABSTIME TFD_TIMER_ABSTIME
+  };
+
+
+__BEGIN_DECLS
+
+/* Return file descriptor for new interval timer source.  */
+extern int timerfd_create (clockid_t __clock_id, int __flags) __THROW;
+
+/* Set next expiration time of interval timer source UFD to UTMR.  If
+   FLAGS has the TFD_TIMER_ABSTIME flag set the timeout value is
+   absolute.  Optionally return the old expiration time in OTMR.  */
+extern int timerfd_settime (int __ufd, int __flags,
+			    __const struct itimerspec *__utmr,
+			    struct itimerspec *__otmr) __THROW;
+
+/* Return the next expiration time of UFD.  */
+extern int timerfd_gettime (int __ufd, struct itimerspec *__otmr) __THROW;
+
+__END_DECLS
+
+#endif /* sys/timerfd.h */

--Apple-Mail-35--15589280
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Index: elf32-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
retrieving revision 1.182
diff -u -3 -p -r1.182 elf32-hppa.c
--- elf32-hppa.c	6 Nov 2011 20:25:17 -0000	1.182
+++ elf32-hppa.c	8 Dec 2011 11:47:53 -0000
@@ -3349,10 +3349,16 @@ final_link_relocate (asection *input_sec
       switch (r_type)
 	{
 	  case R_PARISC_DLTIND21L:
+	  case R_PARISC_TLS_GD21L:
+	  case R_PARISC_TLS_LDM21L:
+	  case R_PARISC_TLS_IE21L:
 	    r_type = R_PARISC_DPREL21L;
 	    break;
 
 	  case R_PARISC_DLTIND14R:
+	  case R_PARISC_TLS_GD14R:
+	  case R_PARISC_TLS_LDM14R:
+	  case R_PARISC_TLS_IE14R:
 	    r_type = R_PARISC_DPREL14R;
 	    break;
 
@@ -3418,53 +3424,48 @@ final_link_relocate (asection *input_sec
     case R_PARISC_DPREL21L:
     case R_PARISC_DPREL14R:
     case R_PARISC_DPREL14F:
-    case R_PARISC_TLS_GD21L:
-    case R_PARISC_TLS_LDM21L:
-    case R_PARISC_TLS_IE21L:
       /* Convert instructions that use the linkage table pointer (r19) to
 	 instructions that use the global data pointer (dp).  This is the
 	 most efficient way of using PIC code in an incomplete executable,
 	 but the user must follow the standard runtime conventions for
 	 accessing data for this to work.  */
-      if (orig_r_type == R_PARISC_DLTIND21L
-	  || (!info->shared
-	      && (r_type == R_PARISC_TLS_GD21L
-		  || r_type == R_PARISC_TLS_LDM21L
-		  || r_type == R_PARISC_TLS_IE21L)))
-	{
-	  /* Convert addil instructions if the original reloc was a
-	     DLTIND21L.  GCC sometimes uses a register other than r19 for
-	     the operation, so we must convert any addil instruction
-	     that uses this relocation.  */
-	  if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
-	    insn = ADDIL_DP;
-	  else
-	    /* We must have a ldil instruction.  It's too hard to find
-	       and convert the associated add instruction, so issue an
-	       error.  */
-	    (*_bfd_error_handler)
-	      (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
-	       input_bfd,
-	       input_section,
-	       (long) offset,
-	       howto->name,
-	       insn);
-	}
-      else if (orig_r_type == R_PARISC_DLTIND14F)
-	{
-	  /* This must be a format 1 load/store.  Change the base
-	     register to dp.  */
-	  insn = (insn & 0xfc1ffff) | (27 << 21);
-	}
-
-    /* For all the DP relative relocations, we need to examine the symbol's
-       section.  If it has no section or if it's a code section, then
-       "data pointer relative" makes no sense.  In that case we don't
-       adjust the "value", and for 21 bit addil instructions, we change the
-       source addend register from %dp to %r0.  This situation commonly
-       arises for undefined weak symbols and when a variable's "constness"
-       is declared differently from the way the variable is defined.  For
-       instance: "extern int foo" with foo defined as "const int foo".  */
+      if (orig_r_type != r_type)
+	{
+	  if (r_type == R_PARISC_DPREL21L)
+	    {
+	      /* GCC sometimes uses a register other than r19 for the
+		 operation, so we must convert any addil instruction
+		 that uses this relocation.  */
+	      if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
+		insn = ADDIL_DP;
+	      else
+		/* We must have a ldil instruction.  It's too hard to find
+		   and convert the associated add instruction, so issue an
+		   error.  */
+		(*_bfd_error_handler)
+		  (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
+		   input_bfd,
+		   input_section,
+		   (long) offset,
+		   howto->name,
+		   insn);
+	    }
+	  else if (r_type == R_PARISC_DPREL14F)
+	    {
+	      /* This must be a format 1 load/store.  Change the base
+		 register to dp.  */
+	      insn = (insn & 0xfc1ffff) | (27 << 21);
+	    }
+	}
+
+      /* For all the DP relative relocations, we need to examine the symbol's
+	 section.  If it has no section or if it's a code section, then
+	 "data pointer relative" makes no sense.  In that case we don't
+	 adjust the "value", and for 21 bit addil instructions, we change the
+	 source addend register from %dp to %r0.  This situation commonly
+	 arises for undefined weak symbols and when a variable's "constness"
+	 is declared differently from the way the variable is defined.  For
+	 instance: "extern int foo" with foo defined as "const int foo".  */
       if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
 	{
 	  if ((insn & ((0x3f << 26) | (0x1f << 21)))
@@ -3481,6 +3482,9 @@ final_link_relocate (asection *input_sec
     case R_PARISC_DLTIND21L:
     case R_PARISC_DLTIND14R:
     case R_PARISC_DLTIND14F:
+    case R_PARISC_TLS_GD21L:
+    case R_PARISC_TLS_LDM21L:
+    case R_PARISC_TLS_IE21L:
     case R_PARISC_TLS_GD14R:
     case R_PARISC_TLS_LDM14R:
     case R_PARISC_TLS_IE14R:

--Apple-Mail-35--15589280
Content-Disposition: attachment; filename="hidden.d.2"
Content-Type: application/octet-stream; x-unix-mode=0644; name="hidden.d.2"
Content-Transfer-Encoding: 7bit

Index: elf32-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
retrieving revision 1.181
diff -u -3 -p -r1.181 elf32-hppa.c
--- elf32-hppa.c	26 Oct 2011 09:47:58 -0000	1.181
+++ elf32-hppa.c	6 Nov 2011 18:21:46 -0000
@@ -1789,10 +1789,12 @@ elf32_hppa_hide_symbol (struct bfd_link_
 	}
     }
 
-  if (! hppa_elf_hash_entry (eh)->plabel)
+  /* STT_GNU_IFUNC symbol must go through PLT.  */
+  if (! hppa_elf_hash_entry (eh)->plabel
+      && eh->type != STT_GNU_IFUNC)
     {
       eh->needs_plt = 0;
-      eh->plt = elf_hash_table (info)->init_plt_refcount;
+      eh->plt = elf_hash_table (info)->init_plt_offset;
     }
 }
 
@@ -1814,6 +1816,13 @@ elf32_hppa_adjust_dynamic_symbol (struct
   if (eh->type == STT_FUNC
       || eh->needs_plt)
     {
+      /* If the symbol is used by a plabel, we must allocate a PLT slot.
+	 The refcounts are not reliable when it has been hidden since
+	 hide_symbol can be called before the plabel flag is set.  */
+      if (hppa_elf_hash_entry (eh)->plabel
+	  && eh->plt.refcount <= 0)
+	eh->plt.refcount = 1;
+
       if (eh->plt.refcount <= 0
 	  || (eh->def_regular
 	      && eh->root.type != bfd_link_hash_defweak

--Apple-Mail-35--15589280--
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X-Mozilla-Keys:                                                                                 
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From: Yinghai Lu <yinghai@kernel.org>
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Subject: [PATCH 29/39] PCI, parisc: Register busn_res for root buses
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Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    5 +++++
 drivers/parisc/lba_pci.c |    3 +++
 2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 0610e91..def94af 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -984,6 +984,10 @@ static int __init dino_probe(struct parisc_device *dev)
 	if (dino_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
 
+	dino_dev->hba.bus_num.start = dino_current_bus;
+	dino_dev->hba.bus_num.end = 255;
+	dino_dev->hba.bus_num.flags |= IORESOURCE_BUS;
+	pci_add_resource(&resources, &dino_dev->hba.bus_num);
 	/*
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
@@ -999,6 +1003,7 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_update_busn_res_end(bus, bus->subordinate);
 	bus->subordinate = pci_scan_child_bus(bus);
 
 	/* This code *depends* on scanning being single threaded
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index e885764..df1e9f9 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1503,6 +1503,9 @@ lba_driver_probe(struct parisc_device *dev)
 	if (lba_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
 
+	lba_dev->hba.bus_num.flags |= IORESOURCE_BUS;
+	pci_add_resource(&resources, &lba_dev->hba.bus_num);
+
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
 		pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
-- 
1.7.7

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From - Thu Nov 08 21:08:00 2018
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X-Mozilla-Keys:                                                                                 
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Happy New Year PARISC (take 2)
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On 28-Feb-12, at 5:56 PM, Domenico Andreoli wrote:

> I applied this patch to v3.3-rc5 and then tried to build eglibc  
> 2.13-27,
> unsuccessfully. Do you have any patch for it?


I should have remembered.  You have to remove/move the expected  
results file
(expected-results-hppa-linux-gnu-libc) out of the way -- it hasn't  
been updated.
Otherwise, the build will fail in the testsuite.

Dave
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From - Thu Nov 08 21:08:00 2018
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1260352>

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    5 +++++
 drivers/parisc/lba_pci.c |    3 +++
 2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 0610e91..def94af 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -984,6 +984,10 @@ static int __init dino_probe(struct parisc_device *dev)
 	if (dino_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
 
+	dino_dev->hba.bus_num.start = dino_current_bus;
+	dino_dev->hba.bus_num.end = 255;
+	dino_dev->hba.bus_num.flags |= IORESOURCE_BUS;
+	pci_add_resource(&resources, &dino_dev->hba.bus_num);
 	/*
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
@@ -999,6 +1003,7 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_update_busn_res_end(bus, bus->subordinate);
 	bus->subordinate = pci_scan_child_bus(bus);
 
 	/* This code *depends* on scanning being single threaded
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index e885764..df1e9f9 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1503,6 +1503,9 @@ lba_driver_probe(struct parisc_device *dev)
 	if (lba_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
 
+	lba_dev->hba.bus_num.flags |= IORESOURCE_BUS;
+	pci_add_resource(&resources, &lba_dev->hba.bus_num);
+
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
 		pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
-- 
1.7.7


From - Thu Nov 08 21:08:00 2018
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Subject: [GIT PULL] parisc fixes for 3.3-rc5
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This is a set of build fixes to get the cross compiled architecture
testbeds building again

The patches are here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6.git parisc-fixes

The short changelog is:

Cong Wang (1):
      [PARISC] include <linux/prefetch.h> in drivers/parisc/iommu-helpers.h

James Bottomley (2):
      [PARISC] don't unconditionally override CROSS_COMPILE for 64 bit.
      [PARISC] fix compile break caused by iomap: make IOPORT/PCI mapping functions conditional

And the diffstat

 arch/parisc/Makefile            |    4 ++++
 drivers/parisc/iommu-helpers.h  |    2 ++
 include/asm-generic/iomap.h     |    2 +-
 include/asm-generic/pci_iomap.h |    2 +-
 4 files changed, 8 insertions(+), 2 deletions(-)

With the full diffs below.

James

---

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 55cca1d..19ab7b2 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -31,7 +31,11 @@ ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
 WIDTH		:= 64
+
+# FIXME: if no default set, should really try to locate dynamically
+ifeq ($(CROSS_COMPILE),)
 CROSS_COMPILE	:= hppa64-linux-gnu-
+endif
 else # 32-bit
 WIDTH		:=
 endif
diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h
index a9c46cc..8c33491 100644
--- a/drivers/parisc/iommu-helpers.h
+++ b/drivers/parisc/iommu-helpers.h
@@ -1,3 +1,5 @@
+#include <linux/prefetch.h>
+
 /**
  * iommu_fill_pdir - Insert coalesced scatter/gather chunks into the I/O Pdir.
  * @ioc: The I/O Controller.
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index 8a3d4fd..6afd7d6 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -70,7 +70,7 @@ extern void ioport_unmap(void __iomem *);
 /* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
-#else
+#elif defined(CONFIG_GENERIC_IOMAP)
 struct pci_dev;
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 { }
diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h
index e58fcf8..ce37349 100644
--- a/include/asm-generic/pci_iomap.h
+++ b/include/asm-generic/pci_iomap.h
@@ -25,7 +25,7 @@ extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port,
 #define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr))
 #endif
 
-#else
+#elif defined(CONFIG_GENERIC_PCI_IOMAP)
 static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
 {
 	return NULL;




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On Sat, Mar 3, 2012 at 3:44 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6.git parisc-fixes

"fatal: Couldn't find remote ref parisc-fixes"

Forgot to push?

                Linus
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From - Thu Nov 08 21:08:00 2018
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On Sat, 2012-03-03 at 16:17 -0800, Linus Torvalds wrote:
> On Sat, Mar 3, 2012 at 3:44 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6.git parisc-fixes
> 
> "fatal: Couldn't find remote ref parisc-fixes"
> 
> Forgot to push?

Erm, no, forgot to give the URL of the right tree.  Sorry about that,
try this instead:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git parisc-fixes

James


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On 27-Feb-12, at 9:55 AM, Rolf Eike Beer wrote:

> Recent kernels (>3.x) fail when writing to ext4 filesystems with the
> message "file too large". The critical size is 28672 byte (7*2^12).  
> This
> has been traced down to ext4_max_size() by Tobias Ulmer, which looks  
> like
> this:


Fixed in GCC source trees (> 4.4).  Problem was incorrect shift caused
by truncation to int.

The following instruction was incorrect:

  50:   d7 9f 12 1d     depdi,z,* -1,sar,3,ret0

The length operand was incorrectly calculated.

Dave
--
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: HPPA64: Cannot write to ext4 filesystems with files > 28672 byte
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Am Sonntag 04 M=E4rz 2012, 17:14:14 schrieb John David Anglin:
> On 27-Feb-12, at 9:55 AM, Rolf Eike Beer wrote:
> > Recent kernels (>3.x) fail when writing to ext4 filesystems with th=
e
> > message "file too large". The critical size is 28672 byte (7*2^12).=

> > This
> > has been traced down to ext4_max_size() by Tobias Ulmer, which look=
s
> > like
>=20
> > this:
> Fixed in GCC source trees (> 4.4).  Problem was incorrect shift cause=
d
> by truncation to int.
>=20
> The following instruction was incorrect:
>=20
>   50:   d7 9f 12 1d     depdi,z,* -1,sar,3,ret0
>=20
> The length operand was incorrectly calculated.

As I said ;)

Linux pioneer 3.2.9 #1 SMP Mon Mar 5 13:17:55 CET 2012 parisc64 PA8800 =
(Mako)=20
9000/785/C8000 GNU/Linux

And I can now properly use the ext4 filesystems again, yay!

Thanks, excellent work!

Eike
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There is a fund i need you to claim.Reply for details
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From: Paul Gortmaker <paul.gortmaker@windriver.com>
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Subject: parisc: fix lib/bitmap.c in linux-next
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I'm glad I pushed to fix parisc in linux-next, since now I can tell
when I've broken it.  :)  [but hey it was a good five days while it
lasted though!]

For those of you following parisc in linux-next, as per here:

    http://kisskb.ellerman.id.au/kisskb/target/2059/

the fix is a trivial include that seems specific to parisc:

diff --git a/lib/bitmap.c b/lib/bitmap.c
index e255bfb..0b39614 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -11,6 +11,8 @@
 #include <linux/bitmap.h>
 #include <linux/bitops.h>
 #include <linux/bug.h>
+#include <linux/thread_info.h>
+
 #include <asm/uaccess.h>

and I'll have this in the module-3.4 tree in linux-next tomorrow.

Thanks,
Paul.
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Tell the PCI core about host bridge address translation so it can take
care of bus-to-resource conversion for us.

CC: linux-parisc@vger.kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/parisc/include/asm/pci.h |   38 +-----------------------------
 arch/parisc/kernel/pci.c      |   52 -----------------------------------------
 drivers/parisc/dino.c         |   27 +++++----------------
 drivers/parisc/lba_pci.c      |   31 +++++-------------------
 4 files changed, 13 insertions(+), 135 deletions(-)

diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index 2242a5c..a8b591f 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -82,38 +82,8 @@ struct pci_hba_data {
 
 #ifdef CONFIG_64BIT
 #define PCI_F_EXTEND		0xffffffff00000000UL
-#define PCI_IS_LMMIO(hba,a)	pci_is_lmmio(hba,a)
-
-/* We need to know if an address is LMMMIO or GMMIO.
- * LMMIO requires mangling and GMMIO we must use as-is.
- */
-static __inline__  int pci_is_lmmio(struct pci_hba_data *hba, unsigned long a)
-{
-	return(((a) & PCI_F_EXTEND) == PCI_F_EXTEND);
-}
-
-/*
-** Convert between PCI (IO_VIEW) addresses and processor (PA_VIEW) addresses.
-** See pci.c for more conversions used by Generic PCI code.
-**
-** Platform characteristics/firmware guarantee that
-**	(1) PA_VIEW - IO_VIEW = lmmio_offset for both LMMIO and ELMMIO
-**	(2) PA_VIEW == IO_VIEW for GMMIO
-*/
-#define PCI_BUS_ADDR(hba,a)	(PCI_IS_LMMIO(hba,a)	\
-		?  ((a) - hba->lmmio_space_offset)	/* mangle LMMIO */ \
-		: (a))					/* GMMIO */
-#define PCI_HOST_ADDR(hba,a)	(((a) & PCI_F_EXTEND) == 0 \
-		? (a) + hba->lmmio_space_offset \
-		: (a))
-
 #else	/* !CONFIG_64BIT */
-
-#define PCI_BUS_ADDR(hba,a)	(a)
-#define PCI_HOST_ADDR(hba,a)	(a)
 #define PCI_F_EXTEND		0UL
-#define PCI_IS_LMMIO(hba,a)	(1)	/* 32-bit doesn't support GMMIO */
-
 #endif /* !CONFIG_64BIT */
 
 /*
@@ -245,13 +215,7 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 }
 #endif
 
-extern void
-pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
-			 struct resource *res);
-
-extern void
-pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-			struct pci_bus_region *region);
+#define ARCH_HAS_GENERIC_PCI_OFFSETS
 
 static inline void pcibios_penalize_isa_irq(int irq, int active)
 {
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 9efd974..74d544b 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -195,58 +195,6 @@ void __init pcibios_init_bus(struct pci_bus *bus)
 	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bridge_ctl);
 }
 
-/* called by drivers/pci/setup-bus.c:pci_setup_bridge().  */
-void __devinit pcibios_resource_to_bus(struct pci_dev *dev,
-		struct pci_bus_region *region, struct resource *res)
-{
-#ifdef CONFIG_64BIT
-	struct pci_hba_data *hba = HBA_DATA(dev->bus->bridge->platform_data);
-#endif
-
-	if (res->flags & IORESOURCE_IO) {
-		/*
-		** I/O space may see busnumbers here. Something
-		** in the form of 0xbbxxxx where bb is the bus num
-		** and xxxx is the I/O port space address.
-		** Remaining address translation are done in the
-		** PCI Host adapter specific code - ie dino_out8.
-		*/
-		region->start = PCI_PORT_ADDR(res->start);
-		region->end   = PCI_PORT_ADDR(res->end);
-	} else if (res->flags & IORESOURCE_MEM) {
-		/* Convert MMIO addr to PCI addr (undo global virtualization) */
-		region->start = PCI_BUS_ADDR(hba, res->start);
-		region->end   = PCI_BUS_ADDR(hba, res->end);
-	}
-
-	DBG_RES("pcibios_resource_to_bus(%02x %s [%lx,%lx])\n",
-		dev->bus->number, res->flags & IORESOURCE_IO ? "IO" : "MEM",
-		region->start, region->end);
-}
-
-void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-			      struct pci_bus_region *region)
-{
-#ifdef CONFIG_64BIT
-	struct pci_hba_data *hba = HBA_DATA(dev->bus->bridge->platform_data);
-#endif
-
-	if (res->flags & IORESOURCE_MEM) {
-		res->start = PCI_HOST_ADDR(hba, region->start);
-		res->end = PCI_HOST_ADDR(hba, region->end);
-	}
-
-	if (res->flags & IORESOURCE_IO) {
-		res->start = region->start;
-		res->end = region->end;
-	}
-}
-
-#ifdef CONFIG_HOTPLUG
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-EXPORT_SYMBOL(pcibios_bus_to_resource);
-#endif
-
 /*
  * pcibios align resources() is called every time generic PCI code
  * wants to generate a new address. The process of looking for
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 7ff10c1..0610e91 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -553,7 +553,6 @@ dino_fixup_bus(struct pci_bus *bus)
 	struct list_head *ln;
         struct pci_dev *dev;
         struct dino_device *dino_dev = DINO_DEV(parisc_walk_tree(bus->bridge));
-	int port_base = HBA_PORT_BASE(dino_dev->hba.hba_num);
 
 	DBG(KERN_WARNING "%s(0x%p) bus %d platform_data 0x%p\n",
 	    __func__, bus, bus->secondary,
@@ -599,8 +598,6 @@ dino_fixup_bus(struct pci_bus *bus)
 
 
 	list_for_each(ln, &bus->devices) {
-		int i;
-
 		dev = pci_dev_b(ln);
 		if (is_card_dino(&dino_dev->hba.dev->id))
 			dino_card_fixup(dev);
@@ -612,21 +609,6 @@ dino_fixup_bus(struct pci_bus *bus)
 		if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)
 			continue;
 
-		/* Adjust the I/O Port space addresses */
-		for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-			struct resource *res = &dev->resource[i];
-			if (res->flags & IORESOURCE_IO) {
-				res->start |= port_base;
-				res->end |= port_base;
-			}
-#ifdef __LP64__
-			/* Sign Extend MMIO addresses */
-			else if (res->flags & IORESOURCE_MEM) {
-				res->start |= F_EXTEND(0UL);
-				res->end   |= F_EXTEND(0UL);
-			}
-#endif
-		}
 		/* null out the ROM resource if there is one (we don't
 		 * care about an expansion rom on parisc, since it
 		 * usually contains (x86) bios code) */
@@ -991,11 +973,14 @@ static int __init dino_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = dino_dev;
 
-	pci_add_resource(&resources, &dino_dev->hba.io_space);
+	pci_add_resource_offset(&resources, &dino_dev->hba.io_space,
+				HBA_PORT_BASE(dino_dev->hba.hba_num));
 	if (dino_dev->hba.lmmio_space.flags)
-		pci_add_resource(&resources, &dino_dev->hba.lmmio_space);
+		pci_add_resource_offset(&resources, &dino_dev->hba.lmmio_space,
+					dino_dev->hba.lmmio_space_offset);
 	if (dino_dev->hba.elmmio_space.flags)
-		pci_add_resource(&resources, &dino_dev->hba.elmmio_space);
+		pci_add_resource_offset(&resources, &dino_dev->hba.elmmio_space,
+					dino_dev->hba.lmmio_space_offset);
 	if (dino_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
 
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index d5f3d75..e885764 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -635,7 +635,6 @@ lba_fixup_bus(struct pci_bus *bus)
 	u16 status;
 #endif
 	struct lba_device *ldev = LBA_DEV(parisc_walk_tree(bus->bridge));
-	int lba_portbase = HBA_PORT_BASE(ldev->hba.hba_num);
 
 	DBG("lba_fixup_bus(0x%p) bus %d platform_data 0x%p\n",
 		bus, bus->secondary, bus->bridge->platform_data);
@@ -726,27 +725,6 @@ lba_fixup_bus(struct pci_bus *bus)
 			if (!res->start)
 				continue;
 
-			if (res->flags & IORESOURCE_IO) {
-				DBG("lba_fixup_bus() I/O Ports [%lx/%lx] -> ",
-					res->start, res->end);
-				res->start |= lba_portbase;
-				res->end   |= lba_portbase;
-				DBG("[%lx/%lx]\n", res->start, res->end);
-			} else if (res->flags & IORESOURCE_MEM) {
-				/*
-				** Convert PCI (IO_VIEW) addresses to
-				** processor (PA_VIEW) addresses
-				 */
-				DBG("lba_fixup_bus() MMIO [%lx/%lx] -> ",
-					res->start, res->end);
-				res->start = PCI_HOST_ADDR(HBA_DATA(ldev), res->start);
-				res->end   = PCI_HOST_ADDR(HBA_DATA(ldev), res->end);
-				DBG("[%lx/%lx]\n", res->start, res->end);
-			} else {
-				DBG("lba_fixup_bus() WTF? 0x%lx [%lx/%lx] XXX",
-					res->flags, res->start, res->end);
-			}
-
 			/*
 			** FIXME: this will result in whinging for devices
 			** that share expansion ROMs (think quad tulip), but
@@ -1514,11 +1492,14 @@ lba_driver_probe(struct parisc_device *dev)
 		lba_dev->hba.lmmio_space.flags = 0;
 	}
 
-	pci_add_resource(&resources, &lba_dev->hba.io_space);
+	pci_add_resource_offset(&resources, &lba_dev->hba.io_space,
+				HBA_PORT_BASE(lba_dev->hba.hba_num));
 	if (lba_dev->hba.elmmio_space.start)
-		pci_add_resource(&resources, &lba_dev->hba.elmmio_space);
+		pci_add_resource_offset(&resources, &lba_dev->hba.elmmio_space,
+					lba_dev->hba.lmmio_space_offset);
 	if (lba_dev->hba.lmmio_space.flags)
-		pci_add_resource(&resources, &lba_dev->hba.lmmio_space);
+		pci_add_resource_offset(&resources, &lba_dev->hba.lmmio_space,
+					lba_dev->hba.lmmio_space_offset);
 	if (lba_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
 


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From: David Howells <dhowells@redhat.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH 23/35] Disintegrate asm/system.h for PA-RISC [ver #2]
Date: Mon, 12 Mar 2012 23:39:55 +0000
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	linux-arch@vger.kernel.org, arnd@arndb.de,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1266003>

Disintegrate asm/system.h for PA-RISC.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-parisc@vger.kernel.org
---

 arch/parisc/include/asm/atomic.h        |    1 
 arch/parisc/include/asm/barrier.h       |   35 ++++++
 arch/parisc/include/asm/delay.h         |    2 
 arch/parisc/include/asm/dma.h           |    1 
 arch/parisc/include/asm/exec.h          |    6 +
 arch/parisc/include/asm/ldcw.h          |   48 +++++++++
 arch/parisc/include/asm/processor.h     |    2 
 arch/parisc/include/asm/psw.h           |   41 +++++++
 arch/parisc/include/asm/special_insns.h |   40 +++++++
 arch/parisc/include/asm/spinlock.h      |    1 
 arch/parisc/include/asm/switch_to.h     |   12 ++
 arch/parisc/include/asm/system.h        |  171 +------------------------------
 arch/parisc/include/asm/thread_info.h   |    1 
 arch/parisc/include/asm/timex.h         |    1 
 arch/parisc/include/asm/uaccess.h       |    1 
 arch/parisc/kernel/cache.c              |    1 
 arch/parisc/kernel/firmware.c           |    1 
 arch/parisc/kernel/pci.c                |    1 
 arch/parisc/kernel/ptrace.c             |    1 
 arch/parisc/kernel/smp.c                |    1 
 arch/parisc/kernel/traps.c              |    1 
 arch/parisc/lib/bitops.c                |    1 
 22 files changed, 191 insertions(+), 179 deletions(-)
 create mode 100644 arch/parisc/include/asm/barrier.h
 create mode 100644 arch/parisc/include/asm/exec.h
 create mode 100644 arch/parisc/include/asm/ldcw.h
 create mode 100644 arch/parisc/include/asm/special_insns.h
 create mode 100644 arch/parisc/include/asm/switch_to.h

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 4054b31..3ae5607 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -6,7 +6,6 @@
 #define _ASM_PARISC_ATOMIC_H_
 
 #include <linux/types.h>
-#include <asm/system.h>
 
 /*
  * Atomic operations that C can't guarantee us.  Useful for
diff --git a/arch/parisc/include/asm/barrier.h b/arch/parisc/include/asm/barrier.h
new file mode 100644
index 0000000..e77d834
--- /dev/null
+++ b/arch/parisc/include/asm/barrier.h
@@ -0,0 +1,35 @@
+#ifndef __PARISC_BARRIER_H
+#define __PARISC_BARRIER_H
+
+/*
+** This is simply the barrier() macro from linux/kernel.h but when serial.c
+** uses tqueue.h uses smp_mb() defined using barrier(), linux/kernel.h
+** hasn't yet been included yet so it fails, thus repeating the macro here.
+**
+** PA-RISC architecture allows for weakly ordered memory accesses although
+** none of the processors use it. There is a strong ordered bit that is
+** set in the O-bit of the page directory entry. Operating systems that
+** can not tolerate out of order accesses should set this bit when mapping
+** pages. The O-bit of the PSW should also be set to 1 (I don't believe any
+** of the processor implemented the PSW O-bit). The PCX-W ERS states that
+** the TLB O-bit is not implemented so the page directory does not need to
+** have the O-bit set when mapping pages (section 3.1). This section also
+** states that the PSW Y, Z, G, and O bits are not implemented.
+** So it looks like nothing needs to be done for parisc-linux (yet).
+** (thanks to chada for the above comment -ggg)
+**
+** The __asm__ op below simple prevents gcc/ld from reordering
+** instructions across the mb() "call".
+*/
+#define mb()		__asm__ __volatile__("":::"memory")	/* barrier() */
+#define rmb()		mb()
+#define wmb()		mb()
+#define smp_mb()	mb()
+#define smp_rmb()	mb()
+#define smp_wmb()	mb()
+#define smp_read_barrier_depends()	do { } while(0)
+#define read_barrier_depends()		do { } while(0)
+
+#define set_mb(var, value)		do { var = value; mb(); } while (0)
+
+#endif /* __PARISC_BARRIER_H */
diff --git a/arch/parisc/include/asm/delay.h b/arch/parisc/include/asm/delay.h
index 7a75e98..912ee7e 100644
--- a/arch/parisc/include/asm/delay.h
+++ b/arch/parisc/include/asm/delay.h
@@ -1,7 +1,7 @@
 #ifndef _PARISC_DELAY_H
 #define _PARISC_DELAY_H
 
-#include <asm/system.h>    /* for mfctl() */
+#include <asm/special_insns.h>    /* for mfctl() */
 #include <asm/processor.h> /* for boot_cpu_data */
 
 
diff --git a/arch/parisc/include/asm/dma.h b/arch/parisc/include/asm/dma.h
index f7a18f9..fd48ae2 100644
--- a/arch/parisc/include/asm/dma.h
+++ b/arch/parisc/include/asm/dma.h
@@ -9,7 +9,6 @@
 #define _ASM_DMA_H
 
 #include <asm/io.h>		/* need byte IO */
-#include <asm/system.h>	
 
 #define dma_outb	outb
 #define dma_inb		inb
diff --git a/arch/parisc/include/asm/exec.h b/arch/parisc/include/asm/exec.h
new file mode 100644
index 0000000..6bb5af7
--- /dev/null
+++ b/arch/parisc/include/asm/exec.h
@@ -0,0 +1,6 @@
+#ifndef __PARISC_EXEC_H
+#define __PARISC_EXEC_H
+
+#define arch_align_stack(x) (x)
+
+#endif /* __PARISC_EXEC_H */
diff --git a/arch/parisc/include/asm/ldcw.h b/arch/parisc/include/asm/ldcw.h
new file mode 100644
index 0000000..d2d11b7
--- /dev/null
+++ b/arch/parisc/include/asm/ldcw.h
@@ -0,0 +1,48 @@
+#ifndef __PARISC_LDCW_H
+#define __PARISC_LDCW_H
+
+#ifndef CONFIG_PA20
+/* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
+   and GCC only guarantees 8-byte alignment for stack locals, we can't
+   be assured of 16-byte alignment for atomic lock data even if we
+   specify "__attribute ((aligned(16)))" in the type declaration.  So,
+   we use a struct containing an array of four ints for the atomic lock
+   type and dynamically select the 16-byte aligned int from the array
+   for the semaphore.  */
+
+#define __PA_LDCW_ALIGNMENT	16
+#define __ldcw_align(a) ({					\
+	unsigned long __ret = (unsigned long) &(a)->lock[0];	\
+	__ret = (__ret + __PA_LDCW_ALIGNMENT - 1)		\
+		& ~(__PA_LDCW_ALIGNMENT - 1);			\
+	(volatile unsigned int *) __ret;			\
+})
+#define __LDCW	"ldcw"
+
+#else /*CONFIG_PA20*/
+/* From: "Jim Hull" <jim.hull of hp.com>
+   I've attached a summary of the change, but basically, for PA 2.0, as
+   long as the ",CO" (coherent operation) completer is specified, then the
+   16-byte alignment requirement for ldcw and ldcd is relaxed, and instead
+   they only require "natural" alignment (4-byte for ldcw, 8-byte for
+   ldcd). */
+
+#define __PA_LDCW_ALIGNMENT	4
+#define __ldcw_align(a) (&(a)->slock)
+#define __LDCW	"ldcw,co"
+
+#endif /*!CONFIG_PA20*/
+
+/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
+#define __ldcw(a) ({						\
+	unsigned __ret;						\
+	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
+		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
+	__ret;							\
+})
+
+#ifdef CONFIG_SMP
+# define __lock_aligned __attribute__((__section__(".data..lock_aligned")))
+#endif
+
+#endif /* __PARISC_LDCW_H */
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 7213ec9..acdf4ca 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -16,7 +16,6 @@
 #include <asm/pdc.h>
 #include <asm/ptrace.h>
 #include <asm/types.h>
-#include <asm/system.h>
 #include <asm/percpu.h>
 
 #endif /* __ASSEMBLY__ */
@@ -169,6 +168,7 @@ struct thread_struct {
  * Return saved PC of a blocked thread.  This is used by ps mostly.
  */
 
+struct task_struct;
 unsigned long thread_saved_pc(struct task_struct *t);
 void show_trace(struct task_struct *task, unsigned long *stack);
 
diff --git a/arch/parisc/include/asm/psw.h b/arch/parisc/include/asm/psw.h
index 5a3e23c..ad69a35 100644
--- a/arch/parisc/include/asm/psw.h
+++ b/arch/parisc/include/asm/psw.h
@@ -59,4 +59,45 @@
 #define USER_PSW_MASK (WIDE_PSW | PSW_T | PSW_N | PSW_X | PSW_B | PSW_V | PSW_CB)
 #define USER_PSW      (PSW_C | PSW_Q | PSW_P | PSW_D | PSW_I)
 
+#ifndef __ASSEMBLY__
+
+/* The program status word as bitfields.  */
+struct pa_psw {
+	unsigned int y:1;
+	unsigned int z:1;
+	unsigned int rv:2;
+	unsigned int w:1;
+	unsigned int e:1;
+	unsigned int s:1;
+	unsigned int t:1;
+
+	unsigned int h:1;
+	unsigned int l:1;
+	unsigned int n:1;
+	unsigned int x:1;
+	unsigned int b:1;
+	unsigned int c:1;
+	unsigned int v:1;
+	unsigned int m:1;
+
+	unsigned int cb:8;
+
+	unsigned int o:1;
+	unsigned int g:1;
+	unsigned int f:1;
+	unsigned int r:1;
+	unsigned int q:1;
+	unsigned int p:1;
+	unsigned int d:1;
+	unsigned int i:1;
+};
+
+#ifdef CONFIG_64BIT
+#define pa_psw(task) ((struct pa_psw *) ((char *) (task) + TASK_PT_PSW + 4))
+#else
+#define pa_psw(task) ((struct pa_psw *) ((char *) (task) + TASK_PT_PSW))
+#endif
+
+#endif /* !__ASSEMBLY__ */
+
 #endif
diff --git a/arch/parisc/include/asm/special_insns.h b/arch/parisc/include/asm/special_insns.h
new file mode 100644
index 0000000..d306b75
--- /dev/null
+++ b/arch/parisc/include/asm/special_insns.h
@@ -0,0 +1,40 @@
+#ifndef __PARISC_SPECIAL_INSNS_H
+#define __PARISC_SPECIAL_INSNS_H
+
+#define mfctl(reg)	({		\
+	unsigned long cr;		\
+	__asm__ __volatile__(		\
+		"mfctl " #reg ",%0" :	\
+		 "=r" (cr)		\
+	);				\
+	cr;				\
+})
+
+#define mtctl(gr, cr) \
+	__asm__ __volatile__("mtctl %0,%1" \
+		: /* no outputs */ \
+		: "r" (gr), "i" (cr) : "memory")
+
+/* these are here to de-mystefy the calling code, and to provide hooks */
+/* which I needed for debugging EIEM problems -PB */
+#define get_eiem() mfctl(15)
+static inline void set_eiem(unsigned long val)
+{
+	mtctl(val, 15);
+}
+
+#define mfsp(reg)	({		\
+	unsigned long cr;		\
+	__asm__ __volatile__(		\
+		"mfsp " #reg ",%0" :	\
+		 "=r" (cr)		\
+	);				\
+	cr;				\
+})
+
+#define mtsp(gr, cr) \
+	__asm__ __volatile__("mtsp %0,%1" \
+		: /* no outputs */ \
+		: "r" (gr), "i" (cr) : "memory")
+
+#endif /* __PARISC_SPECIAL_INSNS_H */
diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index 74036f4..804aa28 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -1,7 +1,6 @@
 #ifndef __ASM_SPINLOCK_H
 #define __ASM_SPINLOCK_H
 
-#include <asm/system.h>
 #include <asm/processor.h>
 #include <asm/spinlock_types.h>
 
diff --git a/arch/parisc/include/asm/switch_to.h b/arch/parisc/include/asm/switch_to.h
new file mode 100644
index 0000000..8ed8fea
--- /dev/null
+++ b/arch/parisc/include/asm/switch_to.h
@@ -0,0 +1,12 @@
+#ifndef __PARISC_SWITCH_TO_H
+#define __PARISC_SWITCH_TO_H
+
+struct task_struct;
+
+extern struct task_struct *_switch_to(struct task_struct *, struct task_struct *);
+
+#define switch_to(prev, next, last) do {			\
+	(last) = _switch_to(prev, next);			\
+} while(0)
+
+#endif /* __PARISC_SWITCH_TO_H */
diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
index b19e63a..fc2c126 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -1,165 +1,6 @@
-#ifndef __PARISC_SYSTEM_H
-#define __PARISC_SYSTEM_H
-
-#include <linux/irqflags.h>
-
-/* The program status word as bitfields.  */
-struct pa_psw {
-	unsigned int y:1;
-	unsigned int z:1;
-	unsigned int rv:2;
-	unsigned int w:1;
-	unsigned int e:1;
-	unsigned int s:1;
-	unsigned int t:1;
-
-	unsigned int h:1;
-	unsigned int l:1;
-	unsigned int n:1;
-	unsigned int x:1;
-	unsigned int b:1;
-	unsigned int c:1;
-	unsigned int v:1;
-	unsigned int m:1;
-
-	unsigned int cb:8;
-
-	unsigned int o:1;
-	unsigned int g:1;
-	unsigned int f:1;
-	unsigned int r:1;
-	unsigned int q:1;
-	unsigned int p:1;
-	unsigned int d:1;
-	unsigned int i:1;
-};
-
-#ifdef CONFIG_64BIT
-#define pa_psw(task) ((struct pa_psw *) ((char *) (task) + TASK_PT_PSW + 4))
-#else
-#define pa_psw(task) ((struct pa_psw *) ((char *) (task) + TASK_PT_PSW))
-#endif
-
-struct task_struct;
-
-extern struct task_struct *_switch_to(struct task_struct *, struct task_struct *);
-
-#define switch_to(prev, next, last) do {			\
-	(last) = _switch_to(prev, next);			\
-} while(0)
-
-#define mfctl(reg)	({		\
-	unsigned long cr;		\
-	__asm__ __volatile__(		\
-		"mfctl " #reg ",%0" :	\
-		 "=r" (cr)		\
-	);				\
-	cr;				\
-})
-
-#define mtctl(gr, cr) \
-	__asm__ __volatile__("mtctl %0,%1" \
-		: /* no outputs */ \
-		: "r" (gr), "i" (cr) : "memory")
-
-/* these are here to de-mystefy the calling code, and to provide hooks */
-/* which I needed for debugging EIEM problems -PB */
-#define get_eiem() mfctl(15)
-static inline void set_eiem(unsigned long val)
-{
-	mtctl(val, 15);
-}
-
-#define mfsp(reg)	({		\
-	unsigned long cr;		\
-	__asm__ __volatile__(		\
-		"mfsp " #reg ",%0" :	\
-		 "=r" (cr)		\
-	);				\
-	cr;				\
-})
-
-#define mtsp(gr, cr) \
-	__asm__ __volatile__("mtsp %0,%1" \
-		: /* no outputs */ \
-		: "r" (gr), "i" (cr) : "memory")
-
-
-/*
-** This is simply the barrier() macro from linux/kernel.h but when serial.c
-** uses tqueue.h uses smp_mb() defined using barrier(), linux/kernel.h
-** hasn't yet been included yet so it fails, thus repeating the macro here.
-**
-** PA-RISC architecture allows for weakly ordered memory accesses although
-** none of the processors use it. There is a strong ordered bit that is
-** set in the O-bit of the page directory entry. Operating systems that
-** can not tolerate out of order accesses should set this bit when mapping
-** pages. The O-bit of the PSW should also be set to 1 (I don't believe any
-** of the processor implemented the PSW O-bit). The PCX-W ERS states that
-** the TLB O-bit is not implemented so the page directory does not need to
-** have the O-bit set when mapping pages (section 3.1). This section also
-** states that the PSW Y, Z, G, and O bits are not implemented.
-** So it looks like nothing needs to be done for parisc-linux (yet).
-** (thanks to chada for the above comment -ggg)
-**
-** The __asm__ op below simple prevents gcc/ld from reordering
-** instructions across the mb() "call".
-*/
-#define mb()		__asm__ __volatile__("":::"memory")	/* barrier() */
-#define rmb()		mb()
-#define wmb()		mb()
-#define smp_mb()	mb()
-#define smp_rmb()	mb()
-#define smp_wmb()	mb()
-#define smp_read_barrier_depends()	do { } while(0)
-#define read_barrier_depends()		do { } while(0)
-
-#define set_mb(var, value)		do { var = value; mb(); } while (0)
-
-#ifndef CONFIG_PA20
-/* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
-   and GCC only guarantees 8-byte alignment for stack locals, we can't
-   be assured of 16-byte alignment for atomic lock data even if we
-   specify "__attribute ((aligned(16)))" in the type declaration.  So,
-   we use a struct containing an array of four ints for the atomic lock
-   type and dynamically select the 16-byte aligned int from the array
-   for the semaphore.  */
-
-#define __PA_LDCW_ALIGNMENT	16
-#define __ldcw_align(a) ({					\
-	unsigned long __ret = (unsigned long) &(a)->lock[0];	\
-	__ret = (__ret + __PA_LDCW_ALIGNMENT - 1)		\
-		& ~(__PA_LDCW_ALIGNMENT - 1);			\
-	(volatile unsigned int *) __ret;			\
-})
-#define __LDCW	"ldcw"
-
-#else /*CONFIG_PA20*/
-/* From: "Jim Hull" <jim.hull of hp.com>
-   I've attached a summary of the change, but basically, for PA 2.0, as
-   long as the ",CO" (coherent operation) completer is specified, then the
-   16-byte alignment requirement for ldcw and ldcd is relaxed, and instead
-   they only require "natural" alignment (4-byte for ldcw, 8-byte for
-   ldcd). */
-
-#define __PA_LDCW_ALIGNMENT	4
-#define __ldcw_align(a) (&(a)->slock)
-#define __LDCW	"ldcw,co"
-
-#endif /*!CONFIG_PA20*/
-
-/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
-#define __ldcw(a) ({						\
-	unsigned __ret;						\
-	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
-		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
-	__ret;							\
-})
-
-#ifdef CONFIG_SMP
-# define __lock_aligned __attribute__((__section__(".data..lock_aligned")))
-#endif
-
-#define arch_align_stack(x) (x)
-
-#endif
+/* FILE TO BE DELETED. DO NOT ADD STUFF HERE! */
+#include <asm/barrier.h>
+#include <asm/exec.h>
+#include <asm/ldcw.h>
+#include <asm/special_insns.h>
+#include <asm/switch_to.h>
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 6d9c7c7..83ae7dd 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -5,6 +5,7 @@
 
 #ifndef __ASSEMBLY__
 #include <asm/processor.h>
+#include <asm/special_insns.h>
 
 struct thread_info {
 	struct task_struct *task;	/* main task structure */
diff --git a/arch/parisc/include/asm/timex.h b/arch/parisc/include/asm/timex.h
index 3b68d77..2bd51f6 100644
--- a/arch/parisc/include/asm/timex.h
+++ b/arch/parisc/include/asm/timex.h
@@ -6,7 +6,6 @@
 #ifndef _ASMPARISC_TIMEX_H
 #define _ASMPARISC_TIMEX_H
 
-#include <asm/system.h>
 
 #define CLOCK_TICK_RATE	1193180 /* Underlying HZ */
 
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index ff4cf9d..9ac0660 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -5,7 +5,6 @@
  * User space memory access functions
  */
 #include <asm/page.h>
-#include <asm/system.h>
 #include <asm/cache.h>
 #include <asm/errno.h>
 #include <asm-generic/uaccess-unaligned.h>
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 83335f3..9d18189 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -22,7 +22,6 @@
 #include <asm/cache.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
-#include <asm/system.h>
 #include <asm/page.h>
 #include <asm/pgalloc.h>
 #include <asm/processor.h>
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 4896ed0..f65fa48 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -67,7 +67,6 @@
 #include <asm/page.h>
 #include <asm/pdc.h>
 #include <asm/pdcpat.h>
-#include <asm/system.h>
 #include <asm/processor.h>	/* for boot_cpu_data */
 
 static DEFINE_SPINLOCK(pdc_lock);
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 9efd974..4f0cf0c 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -16,7 +16,6 @@
 #include <linux/types.h>
 
 #include <asm/io.h>
-#include <asm/system.h>
 #include <asm/superio.h>
 
 #define DEBUG_RESOURCES 0
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 2905b1f..857c2f5 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -22,7 +22,6 @@
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
-#include <asm/system.h>
 #include <asm/processor.h>
 #include <asm/asm-offsets.h>
 
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 32d5884..5006e8e 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -32,7 +32,6 @@
 #include <linux/bitops.h>
 #include <linux/ftrace.h>
 
-#include <asm/system.h>
 #include <linux/atomic.h>
 #include <asm/current.h>
 #include <asm/delay.h>
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index f19e660..45ba99f 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -27,7 +27,6 @@
 #include <linux/bug.h>
 
 #include <asm/assembly.h>
-#include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/irq.h>
diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c
index a8bffd8..1871188 100644
--- a/arch/parisc/lib/bitops.c
+++ b/arch/parisc/lib/bitops.c
@@ -8,7 +8,6 @@
 
 #include <linux/kernel.h>
 #include <linux/spinlock.h>
-#include <asm/system.h>
 #include <linux/atomic.h>
 
 #ifdef CONFIG_SMP


From - Thu Nov 08 21:08:01 2018
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From: David Howells <dhowells@redhat.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 20/38] Disintegrate asm/system.h for PA-RISC [ver #3]
Date: Thu, 15 Mar 2012 20:58:23 +0000
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/13234>

Disintegrate asm/system.h for PA-RISC.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-parisc@vger.kernel.org
---

 arch/parisc/include/asm/atomic.h        |    1 
 arch/parisc/include/asm/barrier.h       |   35 ++++++
 arch/parisc/include/asm/delay.h         |    2 
 arch/parisc/include/asm/dma.h           |    1 
 arch/parisc/include/asm/exec.h          |    6 +
 arch/parisc/include/asm/ldcw.h          |   48 +++++++++
 arch/parisc/include/asm/processor.h     |    2 
 arch/parisc/include/asm/psw.h           |   41 +++++++
 arch/parisc/include/asm/special_insns.h |   40 +++++++
 arch/parisc/include/asm/spinlock.h      |    1 
 arch/parisc/include/asm/switch_to.h     |   12 ++
 arch/parisc/include/asm/system.h        |  171 +------------------------------
 arch/parisc/include/asm/thread_info.h   |    1 
 arch/parisc/include/asm/timex.h         |    1 
 arch/parisc/include/asm/uaccess.h       |    1 
 arch/parisc/kernel/cache.c              |    1 
 arch/parisc/kernel/firmware.c           |    1 
 arch/parisc/kernel/pci.c                |    1 
 arch/parisc/kernel/ptrace.c             |    1 
 arch/parisc/kernel/smp.c                |    1 
 arch/parisc/kernel/traps.c              |    1 
 arch/parisc/lib/bitops.c                |    1 
 22 files changed, 191 insertions(+), 179 deletions(-)
 create mode 100644 arch/parisc/include/asm/barrier.h
 create mode 100644 arch/parisc/include/asm/exec.h
 create mode 100644 arch/parisc/include/asm/ldcw.h
 create mode 100644 arch/parisc/include/asm/special_insns.h
 create mode 100644 arch/parisc/include/asm/switch_to.h

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 4054b31..3ae5607 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -6,7 +6,6 @@
 #define _ASM_PARISC_ATOMIC_H_
 
 #include <linux/types.h>
-#include <asm/system.h>
 
 /*
  * Atomic operations that C can't guarantee us.  Useful for
diff --git a/arch/parisc/include/asm/barrier.h b/arch/parisc/include/asm/barrier.h
new file mode 100644
index 0000000..e77d834
--- /dev/null
+++ b/arch/parisc/include/asm/barrier.h
@@ -0,0 +1,35 @@
+#ifndef __PARISC_BARRIER_H
+#define __PARISC_BARRIER_H
+
+/*
+** This is simply the barrier() macro from linux/kernel.h but when serial.c
+** uses tqueue.h uses smp_mb() defined using barrier(), linux/kernel.h
+** hasn't yet been included yet so it fails, thus repeating the macro here.
+**
+** PA-RISC architecture allows for weakly ordered memory accesses although
+** none of the processors use it. There is a strong ordered bit that is
+** set in the O-bit of the page directory entry. Operating systems that
+** can not tolerate out of order accesses should set this bit when mapping
+** pages. The O-bit of the PSW should also be set to 1 (I don't believe any
+** of the processor implemented the PSW O-bit). The PCX-W ERS states that
+** the TLB O-bit is not implemented so the page directory does not need to
+** have the O-bit set when mapping pages (section 3.1). This section also
+** states that the PSW Y, Z, G, and O bits are not implemented.
+** So it looks like nothing needs to be done for parisc-linux (yet).
+** (thanks to chada for the above comment -ggg)
+**
+** The __asm__ op below simple prevents gcc/ld from reordering
+** instructions across the mb() "call".
+*/
+#define mb()		__asm__ __volatile__("":::"memory")	/* barrier() */
+#define rmb()		mb()
+#define wmb()		mb()
+#define smp_mb()	mb()
+#define smp_rmb()	mb()
+#define smp_wmb()	mb()
+#define smp_read_barrier_depends()	do { } while(0)
+#define read_barrier_depends()		do { } while(0)
+
+#define set_mb(var, value)		do { var = value; mb(); } while (0)
+
+#endif /* __PARISC_BARRIER_H */
diff --git a/arch/parisc/include/asm/delay.h b/arch/parisc/include/asm/delay.h
index 7a75e98..912ee7e 100644
--- a/arch/parisc/include/asm/delay.h
+++ b/arch/parisc/include/asm/delay.h
@@ -1,7 +1,7 @@
 #ifndef _PARISC_DELAY_H
 #define _PARISC_DELAY_H
 
-#include <asm/system.h>    /* for mfctl() */
+#include <asm/special_insns.h>    /* for mfctl() */
 #include <asm/processor.h> /* for boot_cpu_data */
 
 
diff --git a/arch/parisc/include/asm/dma.h b/arch/parisc/include/asm/dma.h
index f7a18f9..fd48ae2 100644
--- a/arch/parisc/include/asm/dma.h
+++ b/arch/parisc/include/asm/dma.h
@@ -9,7 +9,6 @@
 #define _ASM_DMA_H
 
 #include <asm/io.h>		/* need byte IO */
-#include <asm/system.h>	
 
 #define dma_outb	outb
 #define dma_inb		inb
diff --git a/arch/parisc/include/asm/exec.h b/arch/parisc/include/asm/exec.h
new file mode 100644
index 0000000..6bb5af7
--- /dev/null
+++ b/arch/parisc/include/asm/exec.h
@@ -0,0 +1,6 @@
+#ifndef __PARISC_EXEC_H
+#define __PARISC_EXEC_H
+
+#define arch_align_stack(x) (x)
+
+#endif /* __PARISC_EXEC_H */
diff --git a/arch/parisc/include/asm/ldcw.h b/arch/parisc/include/asm/ldcw.h
new file mode 100644
index 0000000..d2d11b7
--- /dev/null
+++ b/arch/parisc/include/asm/ldcw.h
@@ -0,0 +1,48 @@
+#ifndef __PARISC_LDCW_H
+#define __PARISC_LDCW_H
+
+#ifndef CONFIG_PA20
+/* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
+   and GCC only guarantees 8-byte alignment for stack locals, we can't
+   be assured of 16-byte alignment for atomic lock data even if we
+   specify "__attribute ((aligned(16)))" in the type declaration.  So,
+   we use a struct containing an array of four ints for the atomic lock
+   type and dynamically select the 16-byte aligned int from the array
+   for the semaphore.  */
+
+#define __PA_LDCW_ALIGNMENT	16
+#define __ldcw_align(a) ({					\
+	unsigned long __ret = (unsigned long) &(a)->lock[0];	\
+	__ret = (__ret + __PA_LDCW_ALIGNMENT - 1)		\
+		& ~(__PA_LDCW_ALIGNMENT - 1);			\
+	(volatile unsigned int *) __ret;			\
+})
+#define __LDCW	"ldcw"
+
+#else /*CONFIG_PA20*/
+/* From: "Jim Hull" <jim.hull of hp.com>
+   I've attached a summary of the change, but basically, for PA 2.0, as
+   long as the ",CO" (coherent operation) completer is specified, then the
+   16-byte alignment requirement for ldcw and ldcd is relaxed, and instead
+   they only require "natural" alignment (4-byte for ldcw, 8-byte for
+   ldcd). */
+
+#define __PA_LDCW_ALIGNMENT	4
+#define __ldcw_align(a) (&(a)->slock)
+#define __LDCW	"ldcw,co"
+
+#endif /*!CONFIG_PA20*/
+
+/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
+#define __ldcw(a) ({						\
+	unsigned __ret;						\
+	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
+		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
+	__ret;							\
+})
+
+#ifdef CONFIG_SMP
+# define __lock_aligned __attribute__((__section__(".data..lock_aligned")))
+#endif
+
+#endif /* __PARISC_LDCW_H */
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 7213ec9..acdf4ca 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -16,7 +16,6 @@
 #include <asm/pdc.h>
 #include <asm/ptrace.h>
 #include <asm/types.h>
-#include <asm/system.h>
 #include <asm/percpu.h>
 
 #endif /* __ASSEMBLY__ */
@@ -169,6 +168,7 @@ struct thread_struct {
  * Return saved PC of a blocked thread.  This is used by ps mostly.
  */
 
+struct task_struct;
 unsigned long thread_saved_pc(struct task_struct *t);
 void show_trace(struct task_struct *task, unsigned long *stack);
 
diff --git a/arch/parisc/include/asm/psw.h b/arch/parisc/include/asm/psw.h
index 5a3e23c..ad69a35 100644
--- a/arch/parisc/include/asm/psw.h
+++ b/arch/parisc/include/asm/psw.h
@@ -59,4 +59,45 @@
 #define USER_PSW_MASK (WIDE_PSW | PSW_T | PSW_N | PSW_X | PSW_B | PSW_V | PSW_CB)
 #define USER_PSW      (PSW_C | PSW_Q | PSW_P | PSW_D | PSW_I)
 
+#ifndef __ASSEMBLY__
+
+/* The program status word as bitfields.  */
+struct pa_psw {
+	unsigned int y:1;
+	unsigned int z:1;
+	unsigned int rv:2;
+	unsigned int w:1;
+	unsigned int e:1;
+	unsigned int s:1;
+	unsigned int t:1;
+
+	unsigned int h:1;
+	unsigned int l:1;
+	unsigned int n:1;
+	unsigned int x:1;
+	unsigned int b:1;
+	unsigned int c:1;
+	unsigned int v:1;
+	unsigned int m:1;
+
+	unsigned int cb:8;
+
+	unsigned int o:1;
+	unsigned int g:1;
+	unsigned int f:1;
+	unsigned int r:1;
+	unsigned int q:1;
+	unsigned int p:1;
+	unsigned int d:1;
+	unsigned int i:1;
+};
+
+#ifdef CONFIG_64BIT
+#define pa_psw(task) ((struct pa_psw *) ((char *) (task) + TASK_PT_PSW + 4))
+#else
+#define pa_psw(task) ((struct pa_psw *) ((char *) (task) + TASK_PT_PSW))
+#endif
+
+#endif /* !__ASSEMBLY__ */
+
 #endif
diff --git a/arch/parisc/include/asm/special_insns.h b/arch/parisc/include/asm/special_insns.h
new file mode 100644
index 0000000..d306b75
--- /dev/null
+++ b/arch/parisc/include/asm/special_insns.h
@@ -0,0 +1,40 @@
+#ifndef __PARISC_SPECIAL_INSNS_H
+#define __PARISC_SPECIAL_INSNS_H
+
+#define mfctl(reg)	({		\
+	unsigned long cr;		\
+	__asm__ __volatile__(		\
+		"mfctl " #reg ",%0" :	\
+		 "=r" (cr)		\
+	);				\
+	cr;				\
+})
+
+#define mtctl(gr, cr) \
+	__asm__ __volatile__("mtctl %0,%1" \
+		: /* no outputs */ \
+		: "r" (gr), "i" (cr) : "memory")
+
+/* these are here to de-mystefy the calling code, and to provide hooks */
+/* which I needed for debugging EIEM problems -PB */
+#define get_eiem() mfctl(15)
+static inline void set_eiem(unsigned long val)
+{
+	mtctl(val, 15);
+}
+
+#define mfsp(reg)	({		\
+	unsigned long cr;		\
+	__asm__ __volatile__(		\
+		"mfsp " #reg ",%0" :	\
+		 "=r" (cr)		\
+	);				\
+	cr;				\
+})
+
+#define mtsp(gr, cr) \
+	__asm__ __volatile__("mtsp %0,%1" \
+		: /* no outputs */ \
+		: "r" (gr), "i" (cr) : "memory")
+
+#endif /* __PARISC_SPECIAL_INSNS_H */
diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index 74036f4..804aa28 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -1,7 +1,6 @@
 #ifndef __ASM_SPINLOCK_H
 #define __ASM_SPINLOCK_H
 
-#include <asm/system.h>
 #include <asm/processor.h>
 #include <asm/spinlock_types.h>
 
diff --git a/arch/parisc/include/asm/switch_to.h b/arch/parisc/include/asm/switch_to.h
new file mode 100644
index 0000000..8ed8fea
--- /dev/null
+++ b/arch/parisc/include/asm/switch_to.h
@@ -0,0 +1,12 @@
+#ifndef __PARISC_SWITCH_TO_H
+#define __PARISC_SWITCH_TO_H
+
+struct task_struct;
+
+extern struct task_struct *_switch_to(struct task_struct *, struct task_struct *);
+
+#define switch_to(prev, next, last) do {			\
+	(last) = _switch_to(prev, next);			\
+} while(0)
+
+#endif /* __PARISC_SWITCH_TO_H */
diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
index b19e63a..fc2c126 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -1,165 +1,6 @@
-#ifndef __PARISC_SYSTEM_H
-#define __PARISC_SYSTEM_H
-
-#include <linux/irqflags.h>
-
-/* The program status word as bitfields.  */
-struct pa_psw {
-	unsigned int y:1;
-	unsigned int z:1;
-	unsigned int rv:2;
-	unsigned int w:1;
-	unsigned int e:1;
-	unsigned int s:1;
-	unsigned int t:1;
-
-	unsigned int h:1;
-	unsigned int l:1;
-	unsigned int n:1;
-	unsigned int x:1;
-	unsigned int b:1;
-	unsigned int c:1;
-	unsigned int v:1;
-	unsigned int m:1;
-
-	unsigned int cb:8;
-
-	unsigned int o:1;
-	unsigned int g:1;
-	unsigned int f:1;
-	unsigned int r:1;
-	unsigned int q:1;
-	unsigned int p:1;
-	unsigned int d:1;
-	unsigned int i:1;
-};
-
-#ifdef CONFIG_64BIT
-#define pa_psw(task) ((struct pa_psw *) ((char *) (task) + TASK_PT_PSW + 4))
-#else
-#define pa_psw(task) ((struct pa_psw *) ((char *) (task) + TASK_PT_PSW))
-#endif
-
-struct task_struct;
-
-extern struct task_struct *_switch_to(struct task_struct *, struct task_struct *);
-
-#define switch_to(prev, next, last) do {			\
-	(last) = _switch_to(prev, next);			\
-} while(0)
-
-#define mfctl(reg)	({		\
-	unsigned long cr;		\
-	__asm__ __volatile__(		\
-		"mfctl " #reg ",%0" :	\
-		 "=r" (cr)		\
-	);				\
-	cr;				\
-})
-
-#define mtctl(gr, cr) \
-	__asm__ __volatile__("mtctl %0,%1" \
-		: /* no outputs */ \
-		: "r" (gr), "i" (cr) : "memory")
-
-/* these are here to de-mystefy the calling code, and to provide hooks */
-/* which I needed for debugging EIEM problems -PB */
-#define get_eiem() mfctl(15)
-static inline void set_eiem(unsigned long val)
-{
-	mtctl(val, 15);
-}
-
-#define mfsp(reg)	({		\
-	unsigned long cr;		\
-	__asm__ __volatile__(		\
-		"mfsp " #reg ",%0" :	\
-		 "=r" (cr)		\
-	);				\
-	cr;				\
-})
-
-#define mtsp(gr, cr) \
-	__asm__ __volatile__("mtsp %0,%1" \
-		: /* no outputs */ \
-		: "r" (gr), "i" (cr) : "memory")
-
-
-/*
-** This is simply the barrier() macro from linux/kernel.h but when serial.c
-** uses tqueue.h uses smp_mb() defined using barrier(), linux/kernel.h
-** hasn't yet been included yet so it fails, thus repeating the macro here.
-**
-** PA-RISC architecture allows for weakly ordered memory accesses although
-** none of the processors use it. There is a strong ordered bit that is
-** set in the O-bit of the page directory entry. Operating systems that
-** can not tolerate out of order accesses should set this bit when mapping
-** pages. The O-bit of the PSW should also be set to 1 (I don't believe any
-** of the processor implemented the PSW O-bit). The PCX-W ERS states that
-** the TLB O-bit is not implemented so the page directory does not need to
-** have the O-bit set when mapping pages (section 3.1). This section also
-** states that the PSW Y, Z, G, and O bits are not implemented.
-** So it looks like nothing needs to be done for parisc-linux (yet).
-** (thanks to chada for the above comment -ggg)
-**
-** The __asm__ op below simple prevents gcc/ld from reordering
-** instructions across the mb() "call".
-*/
-#define mb()		__asm__ __volatile__("":::"memory")	/* barrier() */
-#define rmb()		mb()
-#define wmb()		mb()
-#define smp_mb()	mb()
-#define smp_rmb()	mb()
-#define smp_wmb()	mb()
-#define smp_read_barrier_depends()	do { } while(0)
-#define read_barrier_depends()		do { } while(0)
-
-#define set_mb(var, value)		do { var = value; mb(); } while (0)
-
-#ifndef CONFIG_PA20
-/* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
-   and GCC only guarantees 8-byte alignment for stack locals, we can't
-   be assured of 16-byte alignment for atomic lock data even if we
-   specify "__attribute ((aligned(16)))" in the type declaration.  So,
-   we use a struct containing an array of four ints for the atomic lock
-   type and dynamically select the 16-byte aligned int from the array
-   for the semaphore.  */
-
-#define __PA_LDCW_ALIGNMENT	16
-#define __ldcw_align(a) ({					\
-	unsigned long __ret = (unsigned long) &(a)->lock[0];	\
-	__ret = (__ret + __PA_LDCW_ALIGNMENT - 1)		\
-		& ~(__PA_LDCW_ALIGNMENT - 1);			\
-	(volatile unsigned int *) __ret;			\
-})
-#define __LDCW	"ldcw"
-
-#else /*CONFIG_PA20*/
-/* From: "Jim Hull" <jim.hull of hp.com>
-   I've attached a summary of the change, but basically, for PA 2.0, as
-   long as the ",CO" (coherent operation) completer is specified, then the
-   16-byte alignment requirement for ldcw and ldcd is relaxed, and instead
-   they only require "natural" alignment (4-byte for ldcw, 8-byte for
-   ldcd). */
-
-#define __PA_LDCW_ALIGNMENT	4
-#define __ldcw_align(a) (&(a)->slock)
-#define __LDCW	"ldcw,co"
-
-#endif /*!CONFIG_PA20*/
-
-/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
-#define __ldcw(a) ({						\
-	unsigned __ret;						\
-	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
-		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
-	__ret;							\
-})
-
-#ifdef CONFIG_SMP
-# define __lock_aligned __attribute__((__section__(".data..lock_aligned")))
-#endif
-
-#define arch_align_stack(x) (x)
-
-#endif
+/* FILE TO BE DELETED. DO NOT ADD STUFF HERE! */
+#include <asm/barrier.h>
+#include <asm/exec.h>
+#include <asm/ldcw.h>
+#include <asm/special_insns.h>
+#include <asm/switch_to.h>
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 6d9c7c7..83ae7dd 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -5,6 +5,7 @@
 
 #ifndef __ASSEMBLY__
 #include <asm/processor.h>
+#include <asm/special_insns.h>
 
 struct thread_info {
 	struct task_struct *task;	/* main task structure */
diff --git a/arch/parisc/include/asm/timex.h b/arch/parisc/include/asm/timex.h
index 3b68d77..2bd51f6 100644
--- a/arch/parisc/include/asm/timex.h
+++ b/arch/parisc/include/asm/timex.h
@@ -6,7 +6,6 @@
 #ifndef _ASMPARISC_TIMEX_H
 #define _ASMPARISC_TIMEX_H
 
-#include <asm/system.h>
 
 #define CLOCK_TICK_RATE	1193180 /* Underlying HZ */
 
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index ff4cf9d..9ac0660 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -5,7 +5,6 @@
  * User space memory access functions
  */
 #include <asm/page.h>
-#include <asm/system.h>
 #include <asm/cache.h>
 #include <asm/errno.h>
 #include <asm-generic/uaccess-unaligned.h>
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 83335f3..9d18189 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -22,7 +22,6 @@
 #include <asm/cache.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
-#include <asm/system.h>
 #include <asm/page.h>
 #include <asm/pgalloc.h>
 #include <asm/processor.h>
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 4896ed0..f65fa48 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -67,7 +67,6 @@
 #include <asm/page.h>
 #include <asm/pdc.h>
 #include <asm/pdcpat.h>
-#include <asm/system.h>
 #include <asm/processor.h>	/* for boot_cpu_data */
 
 static DEFINE_SPINLOCK(pdc_lock);
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 9efd974..4f0cf0c 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -16,7 +16,6 @@
 #include <linux/types.h>
 
 #include <asm/io.h>
-#include <asm/system.h>
 #include <asm/superio.h>
 
 #define DEBUG_RESOURCES 0
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 2905b1f..857c2f5 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -22,7 +22,6 @@
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
-#include <asm/system.h>
 #include <asm/processor.h>
 #include <asm/asm-offsets.h>
 
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 32d5884..5006e8e 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -32,7 +32,6 @@
 #include <linux/bitops.h>
 #include <linux/ftrace.h>
 
-#include <asm/system.h>
 #include <linux/atomic.h>
 #include <asm/current.h>
 #include <asm/delay.h>
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index f19e660..45ba99f 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -27,7 +27,6 @@
 #include <linux/bug.h>
 
 #include <asm/assembly.h>
-#include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/irq.h>
diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c
index a8bffd8..1871188 100644
--- a/arch/parisc/lib/bitops.c
+++ b/arch/parisc/lib/bitops.c
@@ -8,7 +8,6 @@
 
 #include <linux/kernel.h>
 #include <linux/spinlock.h>
-#include <asm/system.h>
 #include <linux/atomic.h>
 
 #ifdef CONFIG_SMP


From - Thu Nov 08 21:08:01 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Yinghai Lu <yinghai@kernel.org>
Newsgroups: gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH -v11 16/30] PCI, parisc: Register busn_res for root buses
Date: Sun, 18 Mar 2012 22:42:47 -0700
Lines: 49
Approved: news@gmane.org
Message-ID: <1332135781-13695-17-git-send-email-yinghai@kernel.org>
References: <1332135781-13695-1-git-send-email-yinghai@kernel.org>
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Cc: Bjorn Helgaas <bhelgaas@google.com>,
	Dominik Brodowski <linux@dominikbrodowski.net>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arch@vger.kernel.org, Yinghai Lu <yinghai@kernel.org>,
	Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>,
	linux-parisc@vger.kernel.org
To: Jesse Barnes <jbarnes@virtuousgeek.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Tony Luck <tony.luck@intel.com>,
	David Miller <davem@davemloft.net>, x86 <x86@kernel.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.pci/14350>

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    5 +++++
 drivers/parisc/lba_pci.c |    3 +++
 2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 0610e91..def94af 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -984,6 +984,10 @@ static int __init dino_probe(struct parisc_device *dev)
 	if (dino_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
 
+	dino_dev->hba.bus_num.start = dino_current_bus;
+	dino_dev->hba.bus_num.end = 255;
+	dino_dev->hba.bus_num.flags |= IORESOURCE_BUS;
+	pci_add_resource(&resources, &dino_dev->hba.bus_num);
 	/*
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
@@ -999,6 +1003,7 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
+	pci_bus_update_busn_res_end(bus, bus->subordinate);
 	bus->subordinate = pci_scan_child_bus(bus);
 
 	/* This code *depends* on scanning being single threaded
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index e885764..df1e9f9 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1503,6 +1503,9 @@ lba_driver_probe(struct parisc_device *dev)
 	if (lba_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
 
+	lba_dev->hba.bus_num.flags |= IORESOURCE_BUS;
+	pci_add_resource(&resources, &lba_dev->hba.bus_num);
+
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
 		pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
-- 
1.7.7


From - Thu Nov 08 21:08:01 2018
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From: Kautuk Consul <consul.kautuk@gmail.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel,gmane.linux.ports.openrisc,gmane.linux.uclinux.microblaze,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.ports.parisc,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: [PATCH 0/20] mmu: arch/mm: Port OOM changes to arch page fault handlers.
Date: Tue, 20 Mar 2012 09:18:14 -0400
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--0016368e2a82ddd5fa04bbac811c
Content-Type: text/plain; charset=ISO-8859-1

Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99
(mm: retry page fault when blocking on disk transfer) and
commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb
(x86,mm: make pagefault killable)

The above commits introduced changes into the x86 pagefault handler
for making the page fault handler retryable as well as killable.

These changes reduce the mmap_sem hold time, which is crucial
during OOM killer invocation.

I was facing hang and livelock problems on my ARM and MIPS boards when
I invoked OOM by running the stress_32k.c test-case attached to this email.

Since both the ARM and MIPS porting chainges were accepted, me and my
co-worker decided to take the initiative to port these changes to all other
MMU based architectures.

Please review and do write back if there is any way I need to
improve/rewrite any
of these patches.

Signed-off-by: Mohd. Faris <mohdfarisq2010@gmail.com>
Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
---

--0016368e2a82ddd5fa04bbac811c
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From - Thu Nov 08 21:08:01 2018
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Subject: [PATCH 18/20] parisc/mm/fault.c: Port OOM changes to do_page_fault
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Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99
(mm: retry page fault when blocking on disk transfer) and
commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb
(x86,mm: make pagefault killable)

The above commits introduced changes into the x86 pagefault handler
for making the page fault handler retryable as well as killable.

These changes reduce the mmap_sem hold time, which is crucial
during OOM killer invocation.

Port these changes to parisc.

Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
---
 arch/parisc/mm/fault.c |   30 +++++++++++++++++++++++++-----
 1 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 18162ce..f247a34 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -175,10 +175,12 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	struct mm_struct *mm = tsk->mm;
 	unsigned long acc_type;
 	int fault;
+	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	if (in_atomic() || !mm)
 		goto no_context;
 
+retry:
 	down_read(&mm->mmap_sem);
 	vma = find_vma_prev(mm, address, &prev_vma);
 	if (!vma || address < vma->vm_start)
@@ -201,7 +203,12 @@ good_area:
 	 * fault.
 	 */
 
-	fault = handle_mm_fault(mm, vma, address, (acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0);
+	fault = handle_mm_fault(mm, vma, address,
+			flags | ((acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0));
+
+	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+		return;
+
 	if (unlikely(fault & VM_FAULT_ERROR)) {
 		/*
 		 * We hit a shared mapping outside of the file, or some
@@ -214,10 +221,23 @@ good_area:
 			goto bad_area;
 		BUG();
 	}
-	if (fault & VM_FAULT_MAJOR)
-		current->maj_flt++;
-	else
-		current->min_flt++;
+	if (flags & FAULT_FLAG_ALLOW_RETRY) {
+		if (fault & VM_FAULT_MAJOR)
+			current->maj_flt++;
+		else
+			current->min_flt++;
+		if (fault & VM_FAULT_RETRY) {
+			flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+			/*
+			 * No need to up_read(&mm->mmap_sem) as we would
+			 * have already released it in __lock_page_or_retry
+			 * in mm/filemap.c.
+			 */
+
+			goto retry;
+		}
+	}
 	up_read(&mm->mmap_sem);
 	return;
 
-- 
1.7.5.4

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From - Thu Nov 08 21:08:01 2018
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Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel,gmane.linux.ports.openrisc,gmane.linux.uclinux.microblaze,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.ports.parisc,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [PATCH 0/20] mmu: arch/mm: Port OOM changes to arch page fault handlers.
Date: Tue, 20 Mar 2012 14:30:49 +0100
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To: Kautuk Consul <consul.kautuk@gmail.com>
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On Tue, Mar 20, 2012 at 2:18 PM, Kautuk Consul <consul.kautuk@gmail.com> wrote:
> Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99
> (mm: retry page fault when blocking on disk transfer) and
> commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb
> (x86,mm: make pagefault killable)
>
> The above commits introduced changes into the x86 pagefault handler
> for making the page fault handler retryable as well as killable.
>
> These changes reduce the mmap_sem hold time, which is crucial
> during OOM killer invocation.
>
> I was facing hang and livelock problems on my ARM and MIPS boards when
> I invoked OOM by running the stress_32k.c test-case attached to this email.
>
> Since both the ARM and MIPS porting chainges were accepted, me and my
> co-worker decided to take the initiative to port these changes to all other
> MMU based architectures.
>
> Please review and do write back if there is any way I need to
> improve/rewrite any
> of these patches.
>

What about arch/um/?
Does UML not need this change?

-- 
Thanks,
//richard
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From - Thu Nov 08 21:08:01 2018
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Subject: Re: [PATCH 0/20] mmu: arch/mm: Port OOM changes to arch page fault handlers.
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>
> What about arch/um/?
> Does UML not need this change?

Oh yes, extremely sorry I accidentally missed that one out.
Mind if I send it separately ?

>
> --
> Thanks,
> //richard

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From - Thu Nov 08 21:08:02 2018
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On Tue, Mar 20, 2012 at 2:34 PM, Kautuk Consul <consul.kautuk@gmail.com> wrote:
>>
>> What about arch/um/?
>> Does UML not need this change?
>
> Oh yes, extremely sorry I accidentally missed that one out.
> Mind if I send it separately ?

No problem.
handle_page_fault() is the function you want to patch. :)

-- 
Thanks,
//richard

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Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/mm/fault.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 18162ce..0d3680a 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -49,7 +49,7 @@ DEFINE_PER_CPU(struct exception_data, exception_data);
  *   VM_WRITE if write operation
  *   VM_EXEC  if execute operation
  */
-static unsigned long
+static vm_flags_t
 parisc_acctyp(unsigned long code, unsigned int inst)
 {
 	if (code == 6 || code == 16)
@@ -173,7 +173,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	struct vm_area_struct *vma, *prev_vma;
 	struct task_struct *tsk = current;
 	struct mm_struct *mm = tsk->mm;
-	unsigned long acc_type;
+	vm_flags_t acc_type;
 	int fault;
 
 	if (in_atomic() || !mm)

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From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 2/4] mn10300/CPU hotplug: Add missing call to
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The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
---

 arch/mn10300/kernel/smp.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
index 9242e9f..25ca7fe 100644
--- a/arch/mn10300/kernel/smp.c
+++ b/arch/mn10300/kernel/smp.c
@@ -875,10 +875,14 @@ static void __init smp_online(void)
 
 	cpu = smp_processor_id();
 
-	local_irq_enable();
+	notify_cpu_starting(cpu);
 
+	ipi_call_lock();
 	set_cpu_online(cpu, true);
-	smp_wmb();
+	ipi_call_unlock();
+
+	local_irq_enable();
+
 }
 
 /**


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Unfortunately, some of the CPU Hotplug code has been duplicated in all of
the architectures. And in some cases, very poorly (some architectures left
out some of the important bits), to add to the woes.

Commit 5fbd036b552f633abb394a319f7c62a5c86a9cd7 (sched: Cleanup cpu_active
madness) introduced some changes that made the scheduler rely on the
CPU_STARTING notifier. And hence those architectures which forgot to
send out the CPU_STARTING notification will almost surely get into trouble.
(Xen is one example[1]).

The proper fix would be to pull out these bits into generic CPU Hotplug code.
But for now, fix this regression by adding the missing bits in the respective
architectures.

[1].https://lkml.org/lkml/2012/3/20/459
--
 Srivatsa S. Bhat (4):
      hexagon/CPU hotplug: Add missing call to notify_cpu_starting()
      mn10300/CPU hotplug: Add missing call to notify_cpu_starting()
      parisc/CPU hotplug: Add missing call to notify_cpu_starting()
      tile/CPU hotplug: Add missing call to notify_cpu_starting()


  arch/hexagon/kernel/smp.c  |    5 +++++
 arch/mn10300/kernel/smp.c  |    8 ++++++--
 arch/parisc/kernel/smp.c   |    7 ++++++-
 arch/tile/kernel/smpboot.c |    2 ++
 4 files changed, 19 insertions(+), 3 deletions(-)


Regards,
Srivatsa S. Bhat
IBM Linux Technology Center


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The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
---

 arch/hexagon/kernel/smp.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
index 0123c63..71ad6e9 100644
--- a/arch/hexagon/kernel/smp.c
+++ b/arch/hexagon/kernel/smp.c
@@ -178,7 +178,12 @@ void __cpuinit start_secondary(void)
 
 	printk(KERN_INFO "%s cpu %d\n", __func__, current_thread_info()->cpu);
 
+	notify_cpu_starting(cpu);
+
+	ipi_call_lock();
 	set_cpu_online(cpu, true);
+	ipi_call_unlock();
+
 	local_irq_enable();
 
 	cpu_idle();

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Subject: [PATCH 3/4] parisc/CPU hotplug: Add missing call to
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The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
---

 arch/parisc/kernel/smp.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 32d5884..50a4581 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -297,8 +297,13 @@ smp_cpu_init(int cpunum)
 
 		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
 		machine_halt();
-	}  
+	}
+
+	notify_cpu_starting(cpunum);
+
+	ipi_call_lock();
 	set_cpu_online(cpunum, true);
+	ipi_call_unlock();
 
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);

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The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
---

 arch/tile/kernel/smpboot.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/tile/kernel/smpboot.c b/arch/tile/kernel/smpboot.c
index b949edc..172aef7 100644
--- a/arch/tile/kernel/smpboot.c
+++ b/arch/tile/kernel/smpboot.c
@@ -196,6 +196,8 @@ void __cpuinit online_secondary(void)
 	/* This must be done before setting cpu_online_mask */
 	wmb();
 
+	notify_cpu_starting(smp_processor_id());
+
 	/*
 	 * We need to hold call_lock, so there is no inconsistency
 	 * between the time smp_call_function() determines number of

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On Thu, 2012-03-22 at 16:58 +0530, Srivatsa S. Bhat wrote:
> Commit 5fbd036b552f633abb394a319f7c62a5c86a9cd7 (sched: Cleanup cpu_active
> madness) introduced some changes that made the scheduler rely on the
> CPU_STARTING notifier. And hence those architectures which forgot to
> send out the CPU_STARTING notification will almost surely get into trouble.
> (Xen is one example[1]). 

The requirement is that CPU_STARTING is ran before set_cpu_online() or
the open-coded equivalent -- eg. blackfin gets this wrong.

However, it is also required that all this happens while local IRQs are
still disabled, since the moment we enable IRQs interrupts can happen
and interrupts can cause wakeups, and wakeups need to have this state
set up -- blackfin, cris, m32r, mips, sh, sparc64, sparc32, um?, x86 get
this wrong.

Furthermore, all archs that use CONFIG_USE_GENERIC_SMP_HELPERS should
hold ipi_call_lock() over setting the cpu online -- alpha, arm, m32r,
mips, sh, sparc32 seem wrong.

Furthermore, I was pondering the scenario where a 3rd cpu IPIs the newly
booting cpu, I suspect we need a smp_wmb() after setting cpu_active and
a rmb in select_fallback_rq() before reading active.

All in all its a complete friggin trainwreck.
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From: Peter Zijlstra <peterz@infradead.org>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH 0/4] arch/CPU hotplug: Add missing CPU Hotplug bits to
 fix nasty issues
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On Thu, 2012-03-22 at 13:13 +0100, Peter Zijlstra wrote:
> 
> Furthermore, I was pondering the scenario where a 3rd cpu IPIs the newly
> booting cpu, I suspect we need a smp_wmb() after setting cpu_active and
> a rmb in select_fallback_rq() before reading active.

Hmm, not IPI, that would be covered by the disabling of interrupts on
bringup, but somehow manage to wake a thread that's strictly affine that
the fresh cpu, like queue_work_on() or so.



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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH 0/4] arch/CPU hotplug: Add missing CPU Hotplug bits to
 fix nasty issues
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To: Peter Zijlstra <a.p.zijlstra@chello.nl>
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On Thu, 2012-03-22 at 13:13 +0100, Peter Zijlstra wrote:
> On Thu, 2012-03-22 at 16:58 +0530, Srivatsa S. Bhat wrote:
> > Commit 5fbd036b552f633abb394a319f7c62a5c86a9cd7 (sched: Cleanup cpu_active
> > madness) introduced some changes that made the scheduler rely on the
> > CPU_STARTING notifier. And hence those architectures which forgot to
> > send out the CPU_STARTING notification will almost surely get into trouble.
> > (Xen is one example[1]). 
> 
> The requirement is that CPU_STARTING is ran before set_cpu_online() or
> the open-coded equivalent -- eg. blackfin gets this wrong.
> 
> However, it is also required that all this happens while local IRQs are
> still disabled, since the moment we enable IRQs interrupts can happen
> and interrupts can cause wakeups, and wakeups need to have this state
> set up -- blackfin, cris, m32r, mips, sh, sparc64, sparc32, um?, x86 get
> this wrong.
> 
> Furthermore, all archs that use CONFIG_USE_GENERIC_SMP_HELPERS should
> hold ipi_call_lock() over setting the cpu online -- alpha, arm, m32r,
> mips, sh, sparc32 seem wrong.

So for parisc, anywhere in smp_callin() should be fine.  Our last act on
CPU bringup before going into cpu_idle() is to enable interrupts.

> Furthermore, I was pondering the scenario where a 3rd cpu IPIs the newly
> booting cpu, I suspect we need a smp_wmb() after setting cpu_active and
> a rmb in select_fallback_rq() before reading active.
> 
> All in all its a complete friggin trainwreck.

I haven't yet actually tried git head on parisc (and I won't be able to
until I actually get my machines back [currently being shipped across
the atlantic]) but if there's a problem it will show up quickly:  parisc
actually uses cpu hotplug to boot its secondary cpus.

James



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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Thu, 2012-03-22 at 14:53 +0000, James Bottomley wrote:
> parisc actually uses cpu hotplug to boot its secondary cpus. 

I think we all do these days..

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This is a couple of minor updates (fixing lws futex locking and removing
some obsolete cpu_*_map calls).

The update is available here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git parisc-misc

The short changelog is:

John David Anglin (1):
      [PARISC] futex: Use same lock set as lws calls

Rusty Russell (1):
      [PARISC] remove references to cpu_*_map.

And the diffstat:

 arch/parisc/include/asm/futex.h |   31 +++++++++++++++++++++++++++----
 arch/parisc/kernel/smp.c        |    3 +--
 2 files changed, 28 insertions(+), 6 deletions(-)

James


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Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99
(mm: retry page fault when blocking on disk transfer) and
commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb
(x86,mm: make pagefault killable)

The above commits introduced changes into the x86 pagefault handler
for making the page fault handler retryable as well as killable.

These changes reduce the mmap_sem hold time, which is crucial
during OOM killer invocation.

I was facing hang and livelock problems on my ARM and MIPS boards when
I invoked OOM by running the stress_32k.c test-case attached to this email.

Since both the ARM and MIPS porting changes were accepted, me and my
co-worker decided to take the initiative to port these changes to all other
MMU based architectures.

This is v2 of this patch set as there were some problems with the v1 of this
patchset:
- Whitespace issues as reported by David Miller and Joe Perches
- In 2 of the patches, the write(or equivalent) local variable has
been removed from the
  page fault handler because it is not really needed anymore with the
advent of the "flags"
  local variable. Thanks to Geert Uytterhoeven for that.
- The powerpc patch for this has been removed as this has already been
done by someone
  else for powerpc.

At the moment, 8 of these patches have Acked these patches as valid.
I have included their ACKed-By headers for them in their respective
arch patches.

And thanks to Guan Xuetao for actually testing this out on unicore32.

Rest of the arch owners: Please review these patches.

Signed-off-by: Mohd. Faris <mohdfarisq2010@gmail.com>
Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
---

From - Thu Nov 08 21:08:03 2018
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From: Kautuk Consul <consul.kautuk@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 17/19 v2] parisc/mm/fault.c: Port OOM changes to do_page_fault
Date: Sat, 31 Mar 2012 08:06:28 -0400
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Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99
(mm: retry page fault when blocking on disk transfer) and
commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb
(x86,mm: make pagefault killable)

The above commits introduced changes into the x86 pagefault handler
for making the page fault handler retryable as well as killable.

These changes reduce the mmap_sem hold time, which is crucial
during OOM killer invocation.

Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
---
 arch/parisc/mm/fault.c |   29 ++++++++++++++++++++++++-----
 1 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 18162ce..bd66ed6 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -175,10 +175,12 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	struct mm_struct *mm = tsk->mm;
 	unsigned long acc_type;
 	int fault;
+	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	if (in_atomic() || !mm)
 		goto no_context;
 
+retry:
 	down_read(&mm->mmap_sem);
 	vma = find_vma_prev(mm, address, &prev_vma);
 	if (!vma || address < vma->vm_start)
@@ -201,7 +203,12 @@ good_area:
 	 * fault.
 	 */
 
-	fault = handle_mm_fault(mm, vma, address, (acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0);
+	fault = handle_mm_fault(mm, vma, address,
+			flags | ((acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0));
+
+	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+		return;
+
 	if (unlikely(fault & VM_FAULT_ERROR)) {
 		/*
 		 * We hit a shared mapping outside of the file, or some
@@ -214,10 +221,22 @@ good_area:
 			goto bad_area;
 		BUG();
 	}
-	if (fault & VM_FAULT_MAJOR)
-		current->maj_flt++;
-	else
-		current->min_flt++;
+	if (flags & FAULT_FLAG_ALLOW_RETRY) {
+		if (fault & VM_FAULT_MAJOR)
+			current->maj_flt++;
+		else
+			current->min_flt++;
+		if (fault & VM_FAULT_RETRY) {
+			flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+			 /* No need to up_read(&mm->mmap_sem) as we would
+			 * have already released it in __lock_page_or_retry
+			 * in mm/filemap.c.
+			 */
+
+			goto retry;
+		}
+	}
 	up_read(&mm->mmap_sem);
 	return;
 
-- 
1.7.5.4

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From - Thu Nov 08 21:08:03 2018
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From: Kautuk Consul <consul.kautuk@gmail.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel,gmane.linux.ports.openrisc,gmane.linux.uclinux.microblaze,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: Re: [PATCH 0/19 v2] mmu: arch/mm: Port OOM changes to arch page fault handlers.
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--20cf30050bf029880304bc88eb62
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Ugh, sorry I forgot to attach the stress_32k.c test-case to this email.

Please find it attached to this one.

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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH RFC] Simplify the Linux kernel by reducing its state space
Date: Sun, 1 Apr 2012 00:33:21 +0800
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/1764>

Although there have been numerous complaints about the complexity of
parallel programming (especially over the past 5-10 years), the plain
truth is that the incremental complexity of parallel programming over
that of sequential programming is not as large as is commonly believed.
Despite that you might have heard, the mind-numbing complexity of modern
computer systems is not due so much to there being multiple CPUs, but
rather to there being any CPUs at all.  In short, for the ultimate in
computer-system simplicity, the optimal choice is NR_CPUS=0.

This commit therefore limits kernel builds to zero CPUs.  This change
has the beneficial side effect of rendering all kernel bugs harmless.
Furthermore, this commit enables additional beneficial changes, for
example, the removal of those parts of the kernel that are not needed
when there are zero CPUs.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
---

 alpha/Kconfig                     |   11 ++++++-----
 arm/Kconfig                       |    6 +++---
 blackfin/Kconfig                  |    3 ++-
 hexagon/Kconfig                   |    9 +++++----
 ia64/Kconfig                      |    9 +++++----
 m32r/Kconfig                      |   10 ++++++----
 mips/Kconfig                      |   21 +++++++++++----------
 mn10300/Kconfig                   |    3 ++-
 parisc/Kconfig                    |    6 +++---
 powerpc/platforms/Kconfig.cputype |    8 ++++----
 s390/Kconfig                      |   12 +++++++-----
 sh/Kconfig                        |   11 ++++++-----
 sparc/Kconfig                     |    8 ++++----
 tile/Kconfig                      |    9 +++++----
 x86/Kconfig                       |   16 +++++++++-------
 15 files changed, 78 insertions(+), 64 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 56a4df9..1766b4a 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -541,14 +541,15 @@ config HAVE_DEC_LOCK
 	default y
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-32)"
-	range 2 32
+	int "Maximum number of CPUs (0-0)"
+	range 0 0
 	depends on SMP
-	default "32" if ALPHA_GENERIC || ALPHA_MARVEL
-	default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
+	default "0" if ALPHA_GENERIC || ALPHA_MARVEL
+	default "0" if !ALPHA_GENERIC && !ALPHA_MARVEL
 	help
 	  MARVEL support can handle a maximum of 32 CPUs, all the others
-          with working support have a maximum of 4 CPUs.
+          with working support have a maximum of 4 CPUs.  But why take
+	  chances?  Just stick with zero CPUs.
 
 config ARCH_DISCONTIGMEM_ENABLE
 	bool "Discontiguous Memory Support (EXPERIMENTAL)"
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a48aecc..1f07a3a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1551,10 +1551,10 @@ config PAGE_OFFSET
 	default 0xC0000000
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-32)"
-	range 2 32
+	int "Maximum number of CPUs (0-0)"
+	range 0 0
 	depends on SMP
-	default "4"
+	default "0"
 
 config HOTPLUG_CPU
 	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index abe5a9e..6a78549 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -241,7 +241,8 @@ config SMP
 config NR_CPUS
 	int
 	depends on SMP
-	default 2 if BF561
+	range 0 0
+	default 0 if BF561
 
 config HOTPLUG_CPU
 	bool "Support for hot-pluggable CPUs"
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 9059e39..daab009 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -158,13 +158,14 @@ config SMP
 
 config NR_CPUS
 	int "Maximum number of CPUs" if SMP
-	range 2 6 if SMP
-	default "1" if !SMP
-	default "6" if SMP
+	range 0 0 if SMP
+	default "0" if !SMP
+	default "0" if SMP
 	---help---
 	  This allows you to specify the maximum number of CPUs which this
 	  kernel will support.  The maximum supported value is 6 and the
-	  minimum value which makes sense is 2.
+	  minimum value which makes sense is 2.  But a limit of zero is
+	  so much safer!
 
 	  This is purely to save memory - each supported CPU adds
 	  approximately eight kilobytes to the kernel image.
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index bd72669..fea0e6d 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -373,16 +373,17 @@ config SMP
 	  If you don't know what to do here, say N.
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-4096)"
-	range 2 4096
+	int "Maximum number of CPUs (0-0)"
+	range 0 0
 	depends on SMP
-	default "4096"
+	default "0"
 	help
 	  You should set this to the number of CPUs in your system, but
 	  keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
 	  only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
 	  than 64 will cause the use of a CPU mask array, causing a small
-	  performance hit.
+	  performance hit.  And setting it larger than zero risks all
+	  manner of software bugs, so we just play it safe.
 
 config HOTPLUG_CPU
 	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index ef80a65..68b9e88 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -300,14 +300,16 @@ config CHIP_M32700_TS1
 	default n
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-32)"
-	range 2 32
+	int "Maximum number of CPUs (0-0)"
+	range 0 0
 	depends on SMP
-	default "2"
+	default "0"
 	help
 	  This allows you to specify the maximum number of CPUs which this
 	  kernel will support.  The maximum supported value is 32 and the
-	  minimum value which makes sense is 2.
+	  minimum value which makes sense is 2.  Zero may not make sense,
+	  but given that there is much in this world that does not make
+	  sense, zero it is!
 
 	  This is purely to save memory - each supported CPU adds
 	  approximately eight kilobytes to the kernel image.
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 5ab6e89..3d7d06c 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2192,16 +2192,16 @@ config NR_CPUS_DEFAULT_64
 	bool
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-64)"
-	range 1 64 if NR_CPUS_DEFAULT_1
+	int "Maximum number of CPUs (0-0)"
+	range 0 0 if NR_CPUS_DEFAULT_1
 	depends on SMP
-	default "1" if NR_CPUS_DEFAULT_1
-	default "2" if NR_CPUS_DEFAULT_2
-	default "4" if NR_CPUS_DEFAULT_4
-	default "8" if NR_CPUS_DEFAULT_8
-	default "16" if NR_CPUS_DEFAULT_16
-	default "32" if NR_CPUS_DEFAULT_32
-	default "64" if NR_CPUS_DEFAULT_64
+	default "0" if NR_CPUS_DEFAULT_1
+	default "0" if NR_CPUS_DEFAULT_2
+	default "0" if NR_CPUS_DEFAULT_4
+	default "0" if NR_CPUS_DEFAULT_8
+	default "0" if NR_CPUS_DEFAULT_16
+	default "0" if NR_CPUS_DEFAULT_32
+	default "0" if NR_CPUS_DEFAULT_64
 	help
 	  This allows you to specify the maximum number of CPUs which this
 	  kernel will support.  The maximum supported value is 32 for 32-bit
@@ -2212,7 +2212,8 @@ config NR_CPUS
 	  This is purely to save memory - each supported CPU adds
 	  approximately eight kilobytes to the kernel image.  For best
 	  performance should round up your number of processors to the next
-	  power of two.
+	  power of two.  And just think how much more memory we will
+	  save by setting the limit to zero!
 
 source "kernel/time/Kconfig"
 
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 8f1c40d..85fc112 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -201,7 +201,8 @@ config SMP
 config NR_CPUS
 	int
 	depends on SMP
-	default "2"
+	range 0 0
+	default "0"
 
 source "kernel/Kconfig.preempt"
 
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 242a1b7..358eaf8 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -254,10 +254,10 @@ config HPUX
 	depends on !64BIT
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-32)"
-	range 2 32
+	int "Maximum number of CPUs (0-0)"
+	range 0 0
 	depends on SMP
-	default "32"
+	default "0"
 
 endmenu
 
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 425db18..5e607e0 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -356,11 +356,11 @@ config SMP
 	  If you don't know what to do here, say N.
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-8192)"
-	range 2 8192
+	int "Maximum number of CPUs (0-0)"
+	range 0 0
 	depends on SMP
-	default "32" if PPC64
-	default "4"
+	default "0" if PPC64
+	default "0"
 
 config NOT_COHERENT_CACHE
 	bool
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index d172758..f9bc067 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -169,15 +169,17 @@ config SMP
 	  Even if you don't know what to do here, say Y.
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-64)"
-	range 2 64
+	int "Maximum number of CPUs (0-0)"
+	range 0 0
 	depends on SMP
-	default "32" if !64BIT
-	default "64" if 64BIT
+	default "0" if !64BIT
+	default "0" if 64BIT
 	help
 	  This allows you to specify the maximum number of CPUs which this
 	  kernel will support.  The maximum supported value is 64 and the
-	  minimum value which makes sense is 2.
+	  minimum value which makes sense is 2.  The minimal value that
+	  makes sense might well be 2, but we all know that the only
+	  -sane- value is zero!
 
 	  This is purely to save memory - each supported CPU adds
 	  approximately sixteen kilobytes to the kernel image.
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 713fb58..5ddc7c0 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -705,18 +705,19 @@ config SMP
 	  If you don't know what to do here, say N.
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-32)"
-	range 2 32
+	int "Maximum number of CPUs (0-0)"
+	range 0 0
 	depends on SMP
-	default "4" if CPU_SUBTYPE_SHX3
-	default "2"
+	default "0" if CPU_SUBTYPE_SHX3
+	default "0"
 	help
 	  This allows you to specify the maximum number of CPUs which this
 	  kernel will support.  The maximum supported value is 32 and the
 	  minimum value which makes sense is 2.
 
 	  This is purely to save memory - each supported CPU adds
-	  approximately eight kilobytes to the kernel image.
+	  approximately eight kilobytes to the kernel image.  Debloating
+	  is the way, NR_CPUS to zero today!!!
 
 config HOTPLUG_CPU
 	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index ca5580e..0de9f0f 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -177,10 +177,10 @@ config SMP
 config NR_CPUS
 	int "Maximum number of CPUs"
 	depends on SMP
-	range 2 32 if SPARC32
-	range 2 1024 if SPARC64
-	default 32 if SPARC32
-	default 64 if SPARC64
+	range 0 0 if SPARC32
+	range 0 0 if SPARC64
+	default 0 if SPARC32
+	default 0 if SPARC64
 
 source kernel/Kconfig.hz
 
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 11270ca..a05112c 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -126,14 +126,15 @@ source "init/Kconfig"
 menu "Tilera-specific configuration"
 
 config NR_CPUS
-	int "Maximum number of tiles (2-255)"
-	range 2 255
+	int "Maximum number of tiles (0-0)"
+	range 0 0
 	depends on SMP
-	default "64"
+	default "0"
 	---help---
 	  Building with 64 is the recommended value, but a slightly
 	  smaller kernel memory footprint results from using a smaller
-	  value on chips with fewer tiles.
+	  value on chips with fewer tiles.  To minimize both memory
+	  footprint and bugs, use zero and only zero.
 
 source "kernel/time/Kconfig"
 
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5bed94e..a6977f2 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -773,19 +773,21 @@ config MAXSMP
 
 config NR_CPUS
 	int "Maximum number of CPUs" if SMP && !MAXSMP
-	range 2 8 if SMP && X86_32 && !X86_BIGSMP
-	range 2 512 if SMP && !MAXSMP
-	default "1" if !SMP
-	default "4096" if MAXSMP
-	default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000)
-	default "8" if SMP
+	range 0 0 if SMP && X86_32 && !X86_BIGSMP
+	range 0 0 if SMP && !MAXSMP
+	default "0" if !SMP
+	default "0" if MAXSMP
+	default "0" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000)
+	default "0" if SMP
 	---help---
 	  This allows you to specify the maximum number of CPUs which this
 	  kernel will support.  The maximum supported value is 512 and the
 	  minimum value which makes sense is 2.
 
 	  This is purely to save memory - each supported CPU adds
-	  approximately eight kilobytes to the kernel image.
+	  approximately eight kilobytes to the kernel image.  But
+	  the first supported CPU brings a lot of bugs with it, so
+	  for ultimate reliability, set the number of CPUs to zero.
 
 config SCHED_SMT
 	bool "SMT (Hyperthreading) scheduler support"

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From - Thu Nov 08 21:08:03 2018
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Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state space
Date: Sat, 31 Mar 2012 18:40:30 +0200
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To: paulmck@linux.vnet.ibm.com
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/4253>

Hi Paul,

On Sat, Mar 31, 2012 at 18:33, Paul E. McKenney
<paulmck@linux.vnet.ibm.com> wrote:
> Although there have been numerous complaints about the complexity of
> parallel programming (especially over the past 5-10 years), the plain
> truth is that the incremental complexity of parallel programming over
> that of sequential programming is not as large as is commonly believe=
d.
> Despite that you might have heard, the mind-numbing complexity of mod=
ern
> computer systems is not due so much to there being multiple CPUs, but
> rather to there being any CPUs at all. =C2=A0In short, for the ultima=
te in
> computer-system simplicity, the optimal choice is NR_CPUS=3D0.
>
> This commit therefore limits kernel builds to zero CPUs. =C2=A0This c=
hange
> has the beneficial side effect of rendering all kernel bugs harmless.
> Furthermore, this commit enables additional beneficial changes, for
> example, the removal of those parts of the kernel that are not needed
> when there are zero CPUs.
>
> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
> ---
>
> =C2=A0alpha/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 | =C2=A0 11 ++++++-----
> =C2=A0arm/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 | =C2=A0 =C2=A06 +++---
> =C2=A0blackfin/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0| =C2=A0 =C2=A03 ++-
> =C2=A0hexagon/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 | =C2=A0 =C2=A09 +++++----
> =C2=A0ia64/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0| =C2=A0 =C2=A09 +++++----
> =C2=A0m32r/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0| =C2=A0 10 ++++++----
> =C2=A0mips/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0| =C2=A0 21 +++++++++++----------
> =C2=A0mn10300/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 | =C2=A0 =C2=A03 ++-
> =C2=A0parisc/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 =C2=A0| =C2=A0 =C2=A06 +++---
> =C2=A0powerpc/platforms/Kconfig.cputype | =C2=A0 =C2=A08 ++++----
> =C2=A0s390/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0| =C2=A0 12 +++++++-----
> =C2=A0sh/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0| =C2=A0 11 ++++++-----
> =C2=A0sparc/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 | =C2=A0 =C2=A08 ++++----
> =C2=A0tile/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0| =C2=A0 =C2=A09 +++++----
> =C2=A0x86/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 | =C2=A0 16 +++++++++-------
> =C2=A015 files changed, 78 insertions(+), 64 deletions(-)

You forgot to fix half of the architectures, a.o. m68k?

Gr{oetje,eeting}s,

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 Geert (still at GMT+2)

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 =C2=A0=C2=A0 -- Linus Torvalds
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From - Thu Nov 08 21:08:04 2018
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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state space
Date: Sat, 31 Mar 2012 09:54:01 -0700
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.hexagon/409>

On Sat, Mar 31, 2012 at 06:40:30PM +0200, Geert Uytterhoeven wrote:
> Hi Paul,
>=20
> On Sat, Mar 31, 2012 at 18:33, Paul E. McKenney
> <paulmck@linux.vnet.ibm.com> wrote:
> > Although there have been numerous complaints about the complexity o=
f
> > parallel programming (especially over the past 5-10 years), the pla=
in
> > truth is that the incremental complexity of parallel programming ov=
er
> > that of sequential programming is not as large as is commonly belie=
ved.
> > Despite that you might have heard, the mind-numbing complexity of m=
odern
> > computer systems is not due so much to there being multiple CPUs, b=
ut
> > rather to there being any CPUs at all. =A0In short, for the ultimat=
e in
> > computer-system simplicity, the optimal choice is NR_CPUS=3D0.
> >
> > This commit therefore limits kernel builds to zero CPUs. =A0This ch=
ange
> > has the beneficial side effect of rendering all kernel bugs harmles=
s.
> > Furthermore, this commit enables additional beneficial changes, for
> > example, the removal of those parts of the kernel that are not need=
ed
> > when there are zero CPUs.
> >
> > Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> > Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
> > ---
> >
> > =A0alpha/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =A0 11 +=
+++++-----
> > =A0arm/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =A0 =A0=
6 +++---
> > =A0blackfin/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0 =A03 +=
+-
> > =A0hexagon/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =A0 =A09 +=
++++----
> > =A0ia64/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0 =A0=
9 +++++----
> > =A0m32r/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0 10=
 ++++++----
> > =A0mips/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0 21=
 +++++++++++----------
> > =A0mn10300/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =A0 =A03 +=
+-
> > =A0parisc/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0 =A06=
 +++---
> > =A0powerpc/platforms/Kconfig.cputype | =A0 =A08 ++++----
> > =A0s390/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0 12=
 +++++++-----
> > =A0sh/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0 =
11 ++++++-----
> > =A0sparc/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =A0 =A08=
 ++++----
> > =A0tile/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0 =A0=
9 +++++----
> > =A0x86/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =A0 16=
 +++++++++-------
> > =A015 files changed, 78 insertions(+), 64 deletions(-)
>=20
> You forgot to fix half of the architectures, a.o. m68k?

I must confess that I fixed only the SMP-capable architectures.

I of course would welcome additions for UP-only architectures.

							Thanx, Paul


From - Thu Nov 08 21:08:04 2018
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Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state space
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--f46d040713dd2d7cb504bc8f6081
Content-Type: text/plain; charset=UTF-8

Hi,

I didn't actually try to compile the patch below; it didn't look like C
code so I wasn't sure what compiler to run it through.  I guess maybe its
python?  However, I'm very sure that the patches are completely correct,
because I read them, and I also know that Paul is a trustworthy programmer.
 Thus, please add my ack

Ack'ed by: Linas Vepstas <linasvepstas@gmail.com>


On 31 March 2012 11:33, Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:

> Although there have been numerous complaints about the complexity of
> parallel programming (especially over the past 5-10 years), the plain
> truth is that the incremental complexity of parallel programming over
> that of sequential programming is not as large as is commonly believed.
> Despite that you might have heard, the mind-numbing complexity of modern
> computer systems is not due so much to there being multiple CPUs, but
> rather to there being any CPUs at all.  In short, for the ultimate in
> computer-system simplicity, the optimal choice is NR_CPUS=0.
>
> This commit therefore limits kernel builds to zero CPUs.  This change
> has the beneficial side effect of rendering all kernel bugs harmless.
> Furthermore, this commit enables additional beneficial changes, for
> example, the removal of those parts of the kernel that are not needed
> when there are zero CPUs.
>
> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
> ---
>
>  alpha/Kconfig                     |   11 ++++++-----
>  arm/Kconfig                       |    6 +++---
>  blackfin/Kconfig                  |    3 ++-
>  hexagon/Kconfig                   |    9 +++++----
>  ia64/Kconfig                      |    9 +++++----
>  m32r/Kconfig                      |   10 ++++++----
>  mips/Kconfig                      |   21 +++++++++++----------
>  mn10300/Kconfig                   |    3 ++-
>  parisc/Kconfig                    |    6 +++---
>  powerpc/platforms/Kconfig.cputype |    8 ++++----
>  s390/Kconfig                      |   12 +++++++-----
>  sh/Kconfig                        |   11 ++++++-----
>  sparc/Kconfig                     |    8 ++++----
>  tile/Kconfig                      |    9 +++++----
>  x86/Kconfig                       |   16 +++++++++-------
>  15 files changed, 78 insertions(+), 64 deletions(-)
>
> diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
> index 56a4df9..1766b4a 100644
> --- a/arch/alpha/Kconfig
> +++ b/arch/alpha/Kconfig
> @@ -541,14 +541,15 @@ config HAVE_DEC_LOCK
>        default y
>
>  config NR_CPUS
> -       int "Maximum number of CPUs (2-32)"
> -       range 2 32
> +       int "Maximum number of CPUs (0-0)"
> +       range 0 0
>        depends on SMP
> -       default "32" if ALPHA_GENERIC || ALPHA_MARVEL
> -       default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
> +       default "0" if ALPHA_GENERIC || ALPHA_MARVEL
> +       default "0" if !ALPHA_GENERIC && !ALPHA_MARVEL
>        help
>          MARVEL support can handle a maximum of 32 CPUs, all the others
> -          with working support have a maximum of 4 CPUs.
> +          with working support have a maximum of 4 CPUs.  But why take
> +         chances?  Just stick with zero CPUs.
>
>  config ARCH_DISCONTIGMEM_ENABLE
>        bool "Discontiguous Memory Support (EXPERIMENTAL)"
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index a48aecc..1f07a3a 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -1551,10 +1551,10 @@ config PAGE_OFFSET
>        default 0xC0000000
>
>  config NR_CPUS
> -       int "Maximum number of CPUs (2-32)"
> -       range 2 32
> +       int "Maximum number of CPUs (0-0)"
> +       range 0 0
>        depends on SMP
> -       default "4"
> +       default "0"
>
>  config HOTPLUG_CPU
>        bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
> diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
> index abe5a9e..6a78549 100644
> --- a/arch/blackfin/Kconfig
> +++ b/arch/blackfin/Kconfig
> @@ -241,7 +241,8 @@ config SMP
>  config NR_CPUS
>        int
>        depends on SMP
> -       default 2 if BF561
> +       range 0 0
> +       default 0 if BF561
>
>  config HOTPLUG_CPU
>        bool "Support for hot-pluggable CPUs"
> diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
> index 9059e39..daab009 100644
> --- a/arch/hexagon/Kconfig
> +++ b/arch/hexagon/Kconfig
> @@ -158,13 +158,14 @@ config SMP
>
>  config NR_CPUS
>        int "Maximum number of CPUs" if SMP
> -       range 2 6 if SMP
> -       default "1" if !SMP
> -       default "6" if SMP
> +       range 0 0 if SMP
> +       default "0" if !SMP
> +       default "0" if SMP
>        ---help---
>          This allows you to specify the maximum number of CPUs which this
>          kernel will support.  The maximum supported value is 6 and the
> -         minimum value which makes sense is 2.
> +         minimum value which makes sense is 2.  But a limit of zero is
> +         so much safer!
>
>          This is purely to save memory - each supported CPU adds
>          approximately eight kilobytes to the kernel image.
> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
> index bd72669..fea0e6d 100644
> --- a/arch/ia64/Kconfig
> +++ b/arch/ia64/Kconfig
> @@ -373,16 +373,17 @@ config SMP
>          If you don't know what to do here, say N.
>
>  config NR_CPUS
> -       int "Maximum number of CPUs (2-4096)"
> -       range 2 4096
> +       int "Maximum number of CPUs (0-0)"
> +       range 0 0
>        depends on SMP
> -       default "4096"
> +       default "0"
>        help
>          You should set this to the number of CPUs in your system, but
>          keep in mind that a kernel compiled for, e.g., 2 CPUs will boot
> but
>          only use 2 CPUs on a >2 CPU system.  Setting this to a value
> larger
>          than 64 will cause the use of a CPU mask array, causing a small
> -         performance hit.
> +         performance hit.  And setting it larger than zero risks all
> +         manner of software bugs, so we just play it safe.
>
>  config HOTPLUG_CPU
>        bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
> diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
> index ef80a65..68b9e88 100644
> --- a/arch/m32r/Kconfig
> +++ b/arch/m32r/Kconfig
> @@ -300,14 +300,16 @@ config CHIP_M32700_TS1
>        default n
>
>  config NR_CPUS
> -       int "Maximum number of CPUs (2-32)"
> -       range 2 32
> +       int "Maximum number of CPUs (0-0)"
> +       range 0 0
>        depends on SMP
> -       default "2"
> +       default "0"
>        help
>          This allows you to specify the maximum number of CPUs which this
>          kernel will support.  The maximum supported value is 32 and the
> -         minimum value which makes sense is 2.
> +         minimum value which makes sense is 2.  Zero may not make sense,
> +         but given that there is much in this world that does not make
> +         sense, zero it is!
>
>          This is purely to save memory - each supported CPU adds
>          approximately eight kilobytes to the kernel image.
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index 5ab6e89..3d7d06c 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -2192,16 +2192,16 @@ config NR_CPUS_DEFAULT_64
>        bool
>
>  config NR_CPUS
> -       int "Maximum number of CPUs (2-64)"
> -       range 1 64 if NR_CPUS_DEFAULT_1
> +       int "Maximum number of CPUs (0-0)"
> +       range 0 0 if NR_CPUS_DEFAULT_1
>        depends on SMP
> -       default "1" if NR_CPUS_DEFAULT_1
> -       default "2" if NR_CPUS_DEFAULT_2
> -       default "4" if NR_CPUS_DEFAULT_4
> -       default "8" if NR_CPUS_DEFAULT_8
> -       default "16" if NR_CPUS_DEFAULT_16
> -       default "32" if NR_CPUS_DEFAULT_32
> -       default "64" if NR_CPUS_DEFAULT_64
> +       default "0" if NR_CPUS_DEFAULT_1
> +       default "0" if NR_CPUS_DEFAULT_2
> +       default "0" if NR_CPUS_DEFAULT_4
> +       default "0" if NR_CPUS_DEFAULT_8
> +       default "0" if NR_CPUS_DEFAULT_16
> +       default "0" if NR_CPUS_DEFAULT_32
> +       default "0" if NR_CPUS_DEFAULT_64
>        help
>          This allows you to specify the maximum number of CPUs which this
>          kernel will support.  The maximum supported value is 32 for 32-bit
> @@ -2212,7 +2212,8 @@ config NR_CPUS
>          This is purely to save memory - each supported CPU adds
>          approximately eight kilobytes to the kernel image.  For best
>          performance should round up your number of processors to the next
> -         power of two.
> +         power of two.  And just think how much more memory we will
> +         save by setting the limit to zero!
>
>  source "kernel/time/Kconfig"
>
> diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
> index 8f1c40d..85fc112 100644
> --- a/arch/mn10300/Kconfig
> +++ b/arch/mn10300/Kconfig
> @@ -201,7 +201,8 @@ config SMP
>  config NR_CPUS
>        int
>        depends on SMP
> -       default "2"
> +       range 0 0
> +       default "0"
>
>  source "kernel/Kconfig.preempt"
>
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index 242a1b7..358eaf8 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -254,10 +254,10 @@ config HPUX
>        depends on !64BIT
>
>  config NR_CPUS
> -       int "Maximum number of CPUs (2-32)"
> -       range 2 32
> +       int "Maximum number of CPUs (0-0)"
> +       range 0 0
>        depends on SMP
> -       default "32"
> +       default "0"
>
>  endmenu
>
> diff --git a/arch/powerpc/platforms/Kconfig.cputype
> b/arch/powerpc/platforms/Kconfig.cputype
> index 425db18..5e607e0 100644
> --- a/arch/powerpc/platforms/Kconfig.cputype
> +++ b/arch/powerpc/platforms/Kconfig.cputype
> @@ -356,11 +356,11 @@ config SMP
>          If you don't know what to do here, say N.
>
>  config NR_CPUS
> -       int "Maximum number of CPUs (2-8192)"
> -       range 2 8192
> +       int "Maximum number of CPUs (0-0)"
> +       range 0 0
>        depends on SMP
> -       default "32" if PPC64
> -       default "4"
> +       default "0" if PPC64
> +       default "0"
>
>  config NOT_COHERENT_CACHE
>        bool
> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> index d172758..f9bc067 100644
> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -169,15 +169,17 @@ config SMP
>          Even if you don't know what to do here, say Y.
>
>  config NR_CPUS
> -       int "Maximum number of CPUs (2-64)"
> -       range 2 64
> +       int "Maximum number of CPUs (0-0)"
> +       range 0 0
>        depends on SMP
> -       default "32" if !64BIT
> -       default "64" if 64BIT
> +       default "0" if !64BIT
> +       default "0" if 64BIT
>        help
>          This allows you to specify the maximum number of CPUs which this
>          kernel will support.  The maximum supported value is 64 and the
> -         minimum value which makes sense is 2.
> +         minimum value which makes sense is 2.  The minimal value that
> +         makes sense might well be 2, but we all know that the only
> +         -sane- value is zero!
>
>          This is purely to save memory - each supported CPU adds
>          approximately sixteen kilobytes to the kernel image.
> diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
> index 713fb58..5ddc7c0 100644
> --- a/arch/sh/Kconfig
> +++ b/arch/sh/Kconfig
> @@ -705,18 +705,19 @@ config SMP
>          If you don't know what to do here, say N.
>
>  config NR_CPUS
> -       int "Maximum number of CPUs (2-32)"
> -       range 2 32
> +       int "Maximum number of CPUs (0-0)"
> +       range 0 0
>        depends on SMP
> -       default "4" if CPU_SUBTYPE_SHX3
> -       default "2"
> +       default "0" if CPU_SUBTYPE_SHX3
> +       default "0"
>        help
>          This allows you to specify the maximum number of CPUs which this
>          kernel will support.  The maximum supported value is 32 and the
>          minimum value which makes sense is 2.
>
>          This is purely to save memory - each supported CPU adds
> -         approximately eight kilobytes to the kernel image.
> +         approximately eight kilobytes to the kernel image.  Debloating
> +         is the way, NR_CPUS to zero today!!!
>
>  config HOTPLUG_CPU
>        bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
> diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
> index ca5580e..0de9f0f 100644
> --- a/arch/sparc/Kconfig
> +++ b/arch/sparc/Kconfig
> @@ -177,10 +177,10 @@ config SMP
>  config NR_CPUS
>        int "Maximum number of CPUs"
>        depends on SMP
> -       range 2 32 if SPARC32
> -       range 2 1024 if SPARC64
> -       default 32 if SPARC32
> -       default 64 if SPARC64
> +       range 0 0 if SPARC32
> +       range 0 0 if SPARC64
> +       default 0 if SPARC32
> +       default 0 if SPARC64
>
>  source kernel/Kconfig.hz
>
> diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
> index 11270ca..a05112c 100644
> --- a/arch/tile/Kconfig
> +++ b/arch/tile/Kconfig
> @@ -126,14 +126,15 @@ source "init/Kconfig"
>  menu "Tilera-specific configuration"
>
>  config NR_CPUS
> -       int "Maximum number of tiles (2-255)"
> -       range 2 255
> +       int "Maximum number of tiles (0-0)"
> +       range 0 0
>        depends on SMP
> -       default "64"
> +       default "0"
>        ---help---
>          Building with 64 is the recommended value, but a slightly
>          smaller kernel memory footprint results from using a smaller
> -         value on chips with fewer tiles.
> +         value on chips with fewer tiles.  To minimize both memory
> +         footprint and bugs, use zero and only zero.
>
>  source "kernel/time/Kconfig"
>
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 5bed94e..a6977f2 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -773,19 +773,21 @@ config MAXSMP
>
>  config NR_CPUS
>        int "Maximum number of CPUs" if SMP && !MAXSMP
> -       range 2 8 if SMP && X86_32 && !X86_BIGSMP
> -       range 2 512 if SMP && !MAXSMP
> -       default "1" if !SMP
> -       default "4096" if MAXSMP
> -       default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP ||
> X86_ES7000)
> -       default "8" if SMP
> +       range 0 0 if SMP && X86_32 && !X86_BIGSMP
> +       range 0 0 if SMP && !MAXSMP
> +       default "0" if !SMP
> +       default "0" if MAXSMP
> +       default "0" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP ||
> X86_ES7000)
> +       default "0" if SMP
>        ---help---
>          This allows you to specify the maximum number of CPUs which this
>          kernel will support.  The maximum supported value is 512 and the
>          minimum value which makes sense is 2.
>
>          This is purely to save memory - each supported CPU adds
> -         approximately eight kilobytes to the kernel image.
> +         approximately eight kilobytes to the kernel image.  But
> +         the first supported CPU brings a lot of bugs with it, so
> +         for ultimate reliability, set the number of CPUs to zero.
>
>  config SCHED_SMT
>        bool "SMT (Hyperthreading) scheduler support"
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-hexagon" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

--f46d040713dd2d7cb504bc8f6081
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div>Hi,</div><div><br></div><div>I didn&#39;t actually try to compile the =
patch below; it didn&#39;t look like C code so I wasn&#39;t sure what compi=
ler to run it through. =C2=A0I guess maybe its python? =C2=A0However, I&#39=
;m very sure that the patches are completely correct, because I read them, =
and I also know that Paul is a trustworthy programmer. =C2=A0Thus, please a=
dd my ack</div>

<div><br></div>Ack&#39;ed by: Linas Vepstas &lt;<a href=3D"mailto:linasveps=
tas@gmail.com">linasvepstas@gmail.com</a>&gt;<br><br><br><div class=3D"gmai=
l_quote">On 31 March 2012 11:33, Paul E. McKenney <span dir=3D"ltr">&lt;<a =
href=3D"mailto:paulmck@linux.vnet.ibm.com">paulmck@linux.vnet.ibm.com</a>&g=
t;</span> wrote:<br>

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">Although there have been numerous complaints=
 about the complexity of<br>
parallel programming (especially over the past 5-10 years), the plain<br>
truth is that the incremental complexity of parallel programming over<br>
that of sequential programming is not as large as is commonly believed.<br>
Despite that you might have heard, the mind-numbing complexity of modern<br=
>
computer systems is not due so much to there being multiple CPUs, but<br>
rather to there being any CPUs at all. =C2=A0In short, for the ultimate in<=
br>
computer-system simplicity, the optimal choice is NR_CPUS=3D0.<br>
<br>
This commit therefore limits kernel builds to zero CPUs. =C2=A0This change<=
br>
has the beneficial side effect of rendering all kernel bugs harmless.<br>
Furthermore, this commit enables additional beneficial changes, for<br>
example, the removal of those parts of the kernel that are not needed<br>
when there are zero CPUs.<br>
<br>
Signed-off-by: Paul E. McKenney &lt;<a href=3D"mailto:paulmck@linux.vnet.ib=
m.com">paulmck@linux.vnet.ibm.com</a>&gt;<br>
Reviewed-by: Thomas Gleixner &lt;<a href=3D"mailto:tglx@linutronix.de">tglx=
@linutronix.de</a>&gt;<br>
---<br>
<br>
=C2=A0alpha/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 | =C2=A0 11 ++++++-----<br>
=C2=A0arm/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 | =C2=A0 =C2=A06 +++---<br>
=C2=A0blackfin/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0| =C2=A0 =C2=A03 ++-<br>
=C2=A0hexagon/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 | =C2=A0 =C2=A09 +++++----<br>
=C2=A0ia64/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0| =C2=A0 =C2=A09 +++++----<br>
=C2=A0m32r/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0| =C2=A0 10 ++++++----<br>
=C2=A0mips/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0| =C2=A0 21 +++++++++++----------<br>
=C2=A0mn10300/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 | =C2=A0 =C2=A03 ++-<br>
=C2=A0parisc/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0| =C2=A0 =C2=A06 +++---<br>
=C2=A0powerpc/platforms/Kconfig.cputype | =C2=A0 =C2=A08 ++++----<br>
=C2=A0s390/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0| =C2=A0 12 +++++++-----<br>
=C2=A0sh/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0| =C2=A0 11 ++++++-----<br>
=C2=A0sparc/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 | =C2=A0 =C2=A08 ++++----<br>
=C2=A0tile/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0| =C2=A0 =C2=A09 +++++----<br>
=C2=A0x86/Kconfig =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 | =C2=A0 16 +++++++++-------<br>
=C2=A015 files changed, 78 insertions(+), 64 deletions(-)<br>
<br>
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig<br>
index 56a4df9..1766b4a 100644<br>
--- a/arch/alpha/Kconfig<br>
+++ b/arch/alpha/Kconfig<br>
@@ -541,14 +541,15 @@ config HAVE_DEC_LOCK<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0default y<br>
<br>
=C2=A0config NR_CPUS<br>
- =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (2-32)&quot;<br>
- =C2=A0 =C2=A0 =C2=A0 range 2 32<br>
+ =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (0-0)&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;32&quot; if ALPHA_GENERIC || ALPHA_MAR=
VEL<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;4&quot; if !ALPHA_GENERIC &amp;&amp; !=
ALPHA_MARVEL<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if ALPHA_GENERIC || ALPHA_MARV=
EL<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if !ALPHA_GENERIC &amp;&amp; !=
ALPHA_MARVEL<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0help<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0MARVEL support can handle a maximum of 3=
2 CPUs, all the others<br>
- =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0with working support have a maximum of =
4 CPUs.<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0with working support have a maximum of =
4 CPUs. =C2=A0But why take<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 chances? =C2=A0Just stick with zero CPUs.<br>
<br>
=C2=A0config ARCH_DISCONTIGMEM_ENABLE<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0bool &quot;Discontiguous Memory Support (EXPERI=
MENTAL)&quot;<br>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig<br>
index a48aecc..1f07a3a 100644<br>
--- a/arch/arm/Kconfig<br>
+++ b/arch/arm/Kconfig<br>
@@ -1551,10 +1551,10 @@ config PAGE_OFFSET<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0default 0xC0000000<br>
<br>
=C2=A0config NR_CPUS<br>
- =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (2-32)&quot;<br>
- =C2=A0 =C2=A0 =C2=A0 range 2 32<br>
+ =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (0-0)&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;4&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot;<br>
<br>
=C2=A0config HOTPLUG_CPU<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0bool &quot;Support for hot-pluggable CPUs (EXPE=
RIMENTAL)&quot;<br>
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig<br>
index abe5a9e..6a78549 100644<br>
--- a/arch/blackfin/Kconfig<br>
+++ b/arch/blackfin/Kconfig<br>
@@ -241,7 +241,8 @@ config SMP<br>
=C2=A0config NR_CPUS<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0int<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default 2 if BF561<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0<br>
+ =C2=A0 =C2=A0 =C2=A0 default 0 if BF561<br>
<br>
=C2=A0config HOTPLUG_CPU<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0bool &quot;Support for hot-pluggable CPUs&quot;=
<br>
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig<br>
index 9059e39..daab009 100644<br>
--- a/arch/hexagon/Kconfig<br>
+++ b/arch/hexagon/Kconfig<br>
@@ -158,13 +158,14 @@ config SMP<br>
<br>
=C2=A0config NR_CPUS<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0int &quot;Maximum number of CPUs&quot; if SMP<b=
r>
- =C2=A0 =C2=A0 =C2=A0 range 2 6 if SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;1&quot; if !SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;6&quot; if SMP<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0 if SMP<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if !SMP<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if SMP<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0---help---<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0This allows you to specify the maximum n=
umber of CPUs which this<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0kernel will support. =C2=A0The maximum s=
upported value is 6 and the<br>
- =C2=A0 =C2=A0 =C2=A0 =C2=A0 minimum value which makes sense is 2.<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 minimum value which makes sense is 2. =C2=A0B=
ut a limit of zero is<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 so much safer!<br>
<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0This is purely to save memory - each sup=
ported CPU adds<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0approximately eight kilobytes to the ker=
nel image.<br>
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig<br>
index bd72669..fea0e6d 100644<br>
--- a/arch/ia64/Kconfig<br>
+++ b/arch/ia64/Kconfig<br>
@@ -373,16 +373,17 @@ config SMP<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0If you don&#39;t know what to do here, s=
ay N.<br>
<br>
=C2=A0config NR_CPUS<br>
- =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (2-4096)&quot;<br>
- =C2=A0 =C2=A0 =C2=A0 range 2 4096<br>
+ =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (0-0)&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;4096&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot;<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0help<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0You should set this to the number of CPU=
s in your system, but<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0keep in mind that a kernel compiled for,=
 e.g., 2 CPUs will boot but<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0only use 2 CPUs on a &gt;2 CPU system. =
=C2=A0Setting this to a value larger<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0than 64 will cause the use of a CPU mask=
 array, causing a small<br>
- =C2=A0 =C2=A0 =C2=A0 =C2=A0 performance hit.<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 performance hit. =C2=A0And setting it larger =
than zero risks all<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 manner of software bugs, so we just play it s=
afe.<br>
<br>
=C2=A0config HOTPLUG_CPU<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0bool &quot;Support for hot-pluggable CPUs (EXPE=
RIMENTAL)&quot;<br>
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig<br>
index ef80a65..68b9e88 100644<br>
--- a/arch/m32r/Kconfig<br>
+++ b/arch/m32r/Kconfig<br>
@@ -300,14 +300,16 @@ config CHIP_M32700_TS1<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0default n<br>
<br>
=C2=A0config NR_CPUS<br>
- =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (2-32)&quot;<br>
- =C2=A0 =C2=A0 =C2=A0 range 2 32<br>
+ =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (0-0)&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;2&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot;<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0help<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0This allows you to specify the maximum n=
umber of CPUs which this<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0kernel will support. =C2=A0The maximum s=
upported value is 32 and the<br>
- =C2=A0 =C2=A0 =C2=A0 =C2=A0 minimum value which makes sense is 2.<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 minimum value which makes sense is 2. =C2=A0Z=
ero may not make sense,<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 but given that there is much in this world th=
at does not make<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 sense, zero it is!<br>
<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0This is purely to save memory - each sup=
ported CPU adds<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0approximately eight kilobytes to the ker=
nel image.<br>
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig<br>
index 5ab6e89..3d7d06c 100644<br>
--- a/arch/mips/Kconfig<br>
+++ b/arch/mips/Kconfig<br>
@@ -2192,16 +2192,16 @@ config NR_CPUS_DEFAULT_64<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0bool<br>
<br>
=C2=A0config NR_CPUS<br>
- =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (2-64)&quot;<br>
- =C2=A0 =C2=A0 =C2=A0 range 1 64 if NR_CPUS_DEFAULT_1<br>
+ =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (0-0)&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0 if NR_CPUS_DEFAULT_1<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;1&quot; if NR_CPUS_DEFAULT_1<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;2&quot; if NR_CPUS_DEFAULT_2<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;4&quot; if NR_CPUS_DEFAULT_4<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;8&quot; if NR_CPUS_DEFAULT_8<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;16&quot; if NR_CPUS_DEFAULT_16<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;32&quot; if NR_CPUS_DEFAULT_32<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;64&quot; if NR_CPUS_DEFAULT_64<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if NR_CPUS_DEFAULT_1<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if NR_CPUS_DEFAULT_2<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if NR_CPUS_DEFAULT_4<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if NR_CPUS_DEFAULT_8<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if NR_CPUS_DEFAULT_16<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if NR_CPUS_DEFAULT_32<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if NR_CPUS_DEFAULT_64<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0help<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0This allows you to specify the maximum n=
umber of CPUs which this<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0kernel will support. =C2=A0The maximum s=
upported value is 32 for 32-bit<br>
@@ -2212,7 +2212,8 @@ config NR_CPUS<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0This is purely to save memory - each sup=
ported CPU adds<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0approximately eight kilobytes to the ker=
nel image. =C2=A0For best<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0performance should round up your number =
of processors to the next<br>
- =C2=A0 =C2=A0 =C2=A0 =C2=A0 power of two.<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 power of two. =C2=A0And just think how much m=
ore memory we will<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 save by setting the limit to zero!<br>
<br>
=C2=A0source &quot;kernel/time/Kconfig&quot;<br>
<br>
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig<br>
index 8f1c40d..85fc112 100644<br>
--- a/arch/mn10300/Kconfig<br>
+++ b/arch/mn10300/Kconfig<br>
@@ -201,7 +201,8 @@ config SMP<br>
=C2=A0config NR_CPUS<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0int<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;2&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot;<br>
<br>
=C2=A0source &quot;kernel/Kconfig.preempt&quot;<br>
<br>
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig<br>
index 242a1b7..358eaf8 100644<br>
--- a/arch/parisc/Kconfig<br>
+++ b/arch/parisc/Kconfig<br>
@@ -254,10 +254,10 @@ config HPUX<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on !64BIT<br>
<br>
=C2=A0config NR_CPUS<br>
- =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (2-32)&quot;<br>
- =C2=A0 =C2=A0 =C2=A0 range 2 32<br>
+ =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (0-0)&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;32&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot;<br>
<br>
=C2=A0endmenu<br>
<br>
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platform=
s/Kconfig.cputype<br>
index 425db18..5e607e0 100644<br>
--- a/arch/powerpc/platforms/Kconfig.cputype<br>
+++ b/arch/powerpc/platforms/Kconfig.cputype<br>
@@ -356,11 +356,11 @@ config SMP<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0If you don&#39;t know what to do here, s=
ay N.<br>
<br>
=C2=A0config NR_CPUS<br>
- =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (2-8192)&quot;<br>
- =C2=A0 =C2=A0 =C2=A0 range 2 8192<br>
+ =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (0-0)&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;32&quot; if PPC64<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;4&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if PPC64<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot;<br>
<br>
=C2=A0config NOT_COHERENT_CACHE<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0bool<br>
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig<br>
index d172758..f9bc067 100644<br>
--- a/arch/s390/Kconfig<br>
+++ b/arch/s390/Kconfig<br>
@@ -169,15 +169,17 @@ config SMP<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Even if you don&#39;t know what to do he=
re, say Y.<br>
<br>
=C2=A0config NR_CPUS<br>
- =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (2-64)&quot;<br>
- =C2=A0 =C2=A0 =C2=A0 range 2 64<br>
+ =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (0-0)&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;32&quot; if !64BIT<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;64&quot; if 64BIT<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if !64BIT<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if 64BIT<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0help<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0This allows you to specify the maximum n=
umber of CPUs which this<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0kernel will support. =C2=A0The maximum s=
upported value is 64 and the<br>
- =C2=A0 =C2=A0 =C2=A0 =C2=A0 minimum value which makes sense is 2.<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 minimum value which makes sense is 2. =C2=A0T=
he minimal value that<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 makes sense might well be 2, but we all know =
that the only<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 -sane- value is zero!<br>
<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0This is purely to save memory - each sup=
ported CPU adds<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0approximately sixteen kilobytes to the k=
ernel image.<br>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig<br>
index 713fb58..5ddc7c0 100644<br>
--- a/arch/sh/Kconfig<br>
+++ b/arch/sh/Kconfig<br>
@@ -705,18 +705,19 @@ config SMP<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0If you don&#39;t know what to do here, s=
ay N.<br>
<br>
=C2=A0config NR_CPUS<br>
- =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (2-32)&quot;<br>
- =C2=A0 =C2=A0 =C2=A0 range 2 32<br>
+ =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of CPUs (0-0)&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;4&quot; if CPU_SUBTYPE_SHX3<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;2&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if CPU_SUBTYPE_SHX3<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot;<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0help<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0This allows you to specify the maximum n=
umber of CPUs which this<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0kernel will support. =C2=A0The maximum s=
upported value is 32 and the<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0minimum value which makes sense is 2.<br=
>
<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0This is purely to save memory - each sup=
ported CPU adds<br>
- =C2=A0 =C2=A0 =C2=A0 =C2=A0 approximately eight kilobytes to the kernel i=
mage.<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 approximately eight kilobytes to the kernel i=
mage. =C2=A0Debloating<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 is the way, NR_CPUS to zero today!!!<br>
<br>
=C2=A0config HOTPLUG_CPU<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0bool &quot;Support for hot-pluggable CPUs (EXPE=
RIMENTAL)&quot;<br>
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig<br>
index ca5580e..0de9f0f 100644<br>
--- a/arch/sparc/Kconfig<br>
+++ b/arch/sparc/Kconfig<br>
@@ -177,10 +177,10 @@ config SMP<br>
=C2=A0config NR_CPUS<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0int &quot;Maximum number of CPUs&quot;<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on SMP<br>
- =C2=A0 =C2=A0 =C2=A0 range 2 32 if SPARC32<br>
- =C2=A0 =C2=A0 =C2=A0 range 2 1024 if SPARC64<br>
- =C2=A0 =C2=A0 =C2=A0 default 32 if SPARC32<br>
- =C2=A0 =C2=A0 =C2=A0 default 64 if SPARC64<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0 if SPARC32<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0 if SPARC64<br>
+ =C2=A0 =C2=A0 =C2=A0 default 0 if SPARC32<br>
+ =C2=A0 =C2=A0 =C2=A0 default 0 if SPARC64<br>
<br>
=C2=A0source kernel/Kconfig.hz<br>
<br>
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig<br>
index 11270ca..a05112c 100644<br>
--- a/arch/tile/Kconfig<br>
+++ b/arch/tile/Kconfig<br>
@@ -126,14 +126,15 @@ source &quot;init/Kconfig&quot;<br>
=C2=A0menu &quot;Tilera-specific configuration&quot;<br>
<br>
=C2=A0config NR_CPUS<br>
- =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of tiles (2-255)&quot;<br>
- =C2=A0 =C2=A0 =C2=A0 range 2 255<br>
+ =C2=A0 =C2=A0 =C2=A0 int &quot;Maximum number of tiles (0-0)&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0depends on SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;64&quot;<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot;<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0---help---<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Building with 64 is the recommended valu=
e, but a slightly<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0smaller kernel memory footprint results =
from using a smaller<br>
- =C2=A0 =C2=A0 =C2=A0 =C2=A0 value on chips with fewer tiles.<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 value on chips with fewer tiles. =C2=A0To min=
imize both memory<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 footprint and bugs, use zero and only zero.<b=
r>
<br>
=C2=A0source &quot;kernel/time/Kconfig&quot;<br>
<br>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig<br>
index 5bed94e..a6977f2 100644<br>
--- a/arch/x86/Kconfig<br>
+++ b/arch/x86/Kconfig<br>
@@ -773,19 +773,21 @@ config MAXSMP<br>
<br>
=C2=A0config NR_CPUS<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0int &quot;Maximum number of CPUs&quot; if SMP &=
amp;&amp; !MAXSMP<br>
- =C2=A0 =C2=A0 =C2=A0 range 2 8 if SMP &amp;&amp; X86_32 &amp;&amp; !X86_B=
IGSMP<br>
- =C2=A0 =C2=A0 =C2=A0 range 2 512 if SMP &amp;&amp; !MAXSMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;1&quot; if !SMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;4096&quot; if MAXSMP<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;32&quot; if SMP &amp;&amp; (X86_NUMAQ =
|| X86_SUMMIT || X86_BIGSMP || X86_ES7000)<br>
- =C2=A0 =C2=A0 =C2=A0 default &quot;8&quot; if SMP<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0 if SMP &amp;&amp; X86_32 &amp;&amp; !X86_B=
IGSMP<br>
+ =C2=A0 =C2=A0 =C2=A0 range 0 0 if SMP &amp;&amp; !MAXSMP<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if !SMP<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if MAXSMP<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if SMP &amp;&amp; (X86_NUMAQ |=
| X86_SUMMIT || X86_BIGSMP || X86_ES7000)<br>
+ =C2=A0 =C2=A0 =C2=A0 default &quot;0&quot; if SMP<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0---help---<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0This allows you to specify the maximum n=
umber of CPUs which this<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0kernel will support. =C2=A0The maximum s=
upported value is 512 and the<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0minimum value which makes sense is 2.<br=
>
<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0This is purely to save memory - each sup=
ported CPU adds<br>
- =C2=A0 =C2=A0 =C2=A0 =C2=A0 approximately eight kilobytes to the kernel i=
mage.<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 approximately eight kilobytes to the kernel i=
mage. =C2=A0But<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 the first supported CPU brings a lot of bugs =
with it, so<br>
+ =C2=A0 =C2=A0 =C2=A0 =C2=A0 for ultimate reliability, set the number of C=
PUs to zero.<br>
<br>
=C2=A0config SCHED_SMT<br>
 =C2=A0 =C2=A0 =C2=A0 =C2=A0bool &quot;SMT (Hyperthreading) scheduler suppo=
rt&quot;<br>
<br>
--<br>
To unsubscribe from this list: send the line &quot;unsubscribe linux-hexago=
n&quot; in<br>
the body of a message to <a href=3D"mailto:majordomo@vger.kernel.org">major=
domo@vger.kernel.org</a><br>
More majordomo info at =C2=A0<a href=3D"http://vger.kernel.org/majordomo-in=
fo.html" target=3D"_blank">http://vger.kernel.org/majordomo-info.html</a><b=
r>
</blockquote></div><br>

--f46d040713dd2d7cb504bc8f6081--



From - Thu Nov 08 21:08:04 2018
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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.hexagon,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state space
Date: Sat, 31 Mar 2012 13:14:22 -0700
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 <CAHrUA35Bz68DtP-Znr=-+U+6P9CONXzN=9JdMXRfRwmVV9fy=Q@mail.gmail.com>
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Cc: linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	uclinux-dist-devel@blackfin.uclinux.org,
	linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org,
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To: Linas Vepstas <linasvepstas@gmail.com>
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On Sat, Mar 31, 2012 at 02:57:46PM -0500, Linas Vepstas wrote:
> Hi,
> 
> I didn't actually try to compile the patch below; it didn't look like C
> code so I wasn't sure what compiler to run it through.  I guess maybe its
> python?  However, I'm very sure that the patches are completely correct,
> because I read them, and I also know that Paul is a trustworthy programmer.
>  Thus, please add my ack
> 
> Ack'ed by: Linas Vepstas <linasvepstas@gmail.com>

It is Linux-kernel Kconfig language, which processed during kernel
builds.  I have added your Acked-by.  ;-)

							Thanx, Paul

> On 31 March 2012 11:33, Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:
> 
> > Although there have been numerous complaints about the complexity of
> > parallel programming (especially over the past 5-10 years), the plain
> > truth is that the incremental complexity of parallel programming over
> > that of sequential programming is not as large as is commonly believed.
> > Despite that you might have heard, the mind-numbing complexity of modern
> > computer systems is not due so much to there being multiple CPUs, but
> > rather to there being any CPUs at all.  In short, for the ultimate in
> > computer-system simplicity, the optimal choice is NR_CPUS=0.
> >
> > This commit therefore limits kernel builds to zero CPUs.  This change
> > has the beneficial side effect of rendering all kernel bugs harmless.
> > Furthermore, this commit enables additional beneficial changes, for
> > example, the removal of those parts of the kernel that are not needed
> > when there are zero CPUs.
> >
> > Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> > Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
> > ---
> >
> >  alpha/Kconfig                     |   11 ++++++-----
> >  arm/Kconfig                       |    6 +++---
> >  blackfin/Kconfig                  |    3 ++-
> >  hexagon/Kconfig                   |    9 +++++----
> >  ia64/Kconfig                      |    9 +++++----
> >  m32r/Kconfig                      |   10 ++++++----
> >  mips/Kconfig                      |   21 +++++++++++----------
> >  mn10300/Kconfig                   |    3 ++-
> >  parisc/Kconfig                    |    6 +++---
> >  powerpc/platforms/Kconfig.cputype |    8 ++++----
> >  s390/Kconfig                      |   12 +++++++-----
> >  sh/Kconfig                        |   11 ++++++-----
> >  sparc/Kconfig                     |    8 ++++----
> >  tile/Kconfig                      |    9 +++++----
> >  x86/Kconfig                       |   16 +++++++++-------
> >  15 files changed, 78 insertions(+), 64 deletions(-)
> >
> > diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
> > index 56a4df9..1766b4a 100644
> > --- a/arch/alpha/Kconfig
> > +++ b/arch/alpha/Kconfig
> > @@ -541,14 +541,15 @@ config HAVE_DEC_LOCK
> >        default y
> >
> >  config NR_CPUS
> > -       int "Maximum number of CPUs (2-32)"
> > -       range 2 32
> > +       int "Maximum number of CPUs (0-0)"
> > +       range 0 0
> >        depends on SMP
> > -       default "32" if ALPHA_GENERIC || ALPHA_MARVEL
> > -       default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
> > +       default "0" if ALPHA_GENERIC || ALPHA_MARVEL
> > +       default "0" if !ALPHA_GENERIC && !ALPHA_MARVEL
> >        help
> >          MARVEL support can handle a maximum of 32 CPUs, all the others
> > -          with working support have a maximum of 4 CPUs.
> > +          with working support have a maximum of 4 CPUs.  But why take
> > +         chances?  Just stick with zero CPUs.
> >
> >  config ARCH_DISCONTIGMEM_ENABLE
> >        bool "Discontiguous Memory Support (EXPERIMENTAL)"
> > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> > index a48aecc..1f07a3a 100644
> > --- a/arch/arm/Kconfig
> > +++ b/arch/arm/Kconfig
> > @@ -1551,10 +1551,10 @@ config PAGE_OFFSET
> >        default 0xC0000000
> >
> >  config NR_CPUS
> > -       int "Maximum number of CPUs (2-32)"
> > -       range 2 32
> > +       int "Maximum number of CPUs (0-0)"
> > +       range 0 0
> >        depends on SMP
> > -       default "4"
> > +       default "0"
> >
> >  config HOTPLUG_CPU
> >        bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
> > diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
> > index abe5a9e..6a78549 100644
> > --- a/arch/blackfin/Kconfig
> > +++ b/arch/blackfin/Kconfig
> > @@ -241,7 +241,8 @@ config SMP
> >  config NR_CPUS
> >        int
> >        depends on SMP
> > -       default 2 if BF561
> > +       range 0 0
> > +       default 0 if BF561
> >
> >  config HOTPLUG_CPU
> >        bool "Support for hot-pluggable CPUs"
> > diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
> > index 9059e39..daab009 100644
> > --- a/arch/hexagon/Kconfig
> > +++ b/arch/hexagon/Kconfig
> > @@ -158,13 +158,14 @@ config SMP
> >
> >  config NR_CPUS
> >        int "Maximum number of CPUs" if SMP
> > -       range 2 6 if SMP
> > -       default "1" if !SMP
> > -       default "6" if SMP
> > +       range 0 0 if SMP
> > +       default "0" if !SMP
> > +       default "0" if SMP
> >        ---help---
> >          This allows you to specify the maximum number of CPUs which this
> >          kernel will support.  The maximum supported value is 6 and the
> > -         minimum value which makes sense is 2.
> > +         minimum value which makes sense is 2.  But a limit of zero is
> > +         so much safer!
> >
> >          This is purely to save memory - each supported CPU adds
> >          approximately eight kilobytes to the kernel image.
> > diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
> > index bd72669..fea0e6d 100644
> > --- a/arch/ia64/Kconfig
> > +++ b/arch/ia64/Kconfig
> > @@ -373,16 +373,17 @@ config SMP
> >          If you don't know what to do here, say N.
> >
> >  config NR_CPUS
> > -       int "Maximum number of CPUs (2-4096)"
> > -       range 2 4096
> > +       int "Maximum number of CPUs (0-0)"
> > +       range 0 0
> >        depends on SMP
> > -       default "4096"
> > +       default "0"
> >        help
> >          You should set this to the number of CPUs in your system, but
> >          keep in mind that a kernel compiled for, e.g., 2 CPUs will boot
> > but
> >          only use 2 CPUs on a >2 CPU system.  Setting this to a value
> > larger
> >          than 64 will cause the use of a CPU mask array, causing a small
> > -         performance hit.
> > +         performance hit.  And setting it larger than zero risks all
> > +         manner of software bugs, so we just play it safe.
> >
> >  config HOTPLUG_CPU
> >        bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
> > diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
> > index ef80a65..68b9e88 100644
> > --- a/arch/m32r/Kconfig
> > +++ b/arch/m32r/Kconfig
> > @@ -300,14 +300,16 @@ config CHIP_M32700_TS1
> >        default n
> >
> >  config NR_CPUS
> > -       int "Maximum number of CPUs (2-32)"
> > -       range 2 32
> > +       int "Maximum number of CPUs (0-0)"
> > +       range 0 0
> >        depends on SMP
> > -       default "2"
> > +       default "0"
> >        help
> >          This allows you to specify the maximum number of CPUs which this
> >          kernel will support.  The maximum supported value is 32 and the
> > -         minimum value which makes sense is 2.
> > +         minimum value which makes sense is 2.  Zero may not make sense,
> > +         but given that there is much in this world that does not make
> > +         sense, zero it is!
> >
> >          This is purely to save memory - each supported CPU adds
> >          approximately eight kilobytes to the kernel image.
> > diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> > index 5ab6e89..3d7d06c 100644
> > --- a/arch/mips/Kconfig
> > +++ b/arch/mips/Kconfig
> > @@ -2192,16 +2192,16 @@ config NR_CPUS_DEFAULT_64
> >        bool
> >
> >  config NR_CPUS
> > -       int "Maximum number of CPUs (2-64)"
> > -       range 1 64 if NR_CPUS_DEFAULT_1
> > +       int "Maximum number of CPUs (0-0)"
> > +       range 0 0 if NR_CPUS_DEFAULT_1
> >        depends on SMP
> > -       default "1" if NR_CPUS_DEFAULT_1
> > -       default "2" if NR_CPUS_DEFAULT_2
> > -       default "4" if NR_CPUS_DEFAULT_4
> > -       default "8" if NR_CPUS_DEFAULT_8
> > -       default "16" if NR_CPUS_DEFAULT_16
> > -       default "32" if NR_CPUS_DEFAULT_32
> > -       default "64" if NR_CPUS_DEFAULT_64
> > +       default "0" if NR_CPUS_DEFAULT_1
> > +       default "0" if NR_CPUS_DEFAULT_2
> > +       default "0" if NR_CPUS_DEFAULT_4
> > +       default "0" if NR_CPUS_DEFAULT_8
> > +       default "0" if NR_CPUS_DEFAULT_16
> > +       default "0" if NR_CPUS_DEFAULT_32
> > +       default "0" if NR_CPUS_DEFAULT_64
> >        help
> >          This allows you to specify the maximum number of CPUs which this
> >          kernel will support.  The maximum supported value is 32 for 32-bit
> > @@ -2212,7 +2212,8 @@ config NR_CPUS
> >          This is purely to save memory - each supported CPU adds
> >          approximately eight kilobytes to the kernel image.  For best
> >          performance should round up your number of processors to the next
> > -         power of two.
> > +         power of two.  And just think how much more memory we will
> > +         save by setting the limit to zero!
> >
> >  source "kernel/time/Kconfig"
> >
> > diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
> > index 8f1c40d..85fc112 100644
> > --- a/arch/mn10300/Kconfig
> > +++ b/arch/mn10300/Kconfig
> > @@ -201,7 +201,8 @@ config SMP
> >  config NR_CPUS
> >        int
> >        depends on SMP
> > -       default "2"
> > +       range 0 0
> > +       default "0"
> >
> >  source "kernel/Kconfig.preempt"
> >
> > diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> > index 242a1b7..358eaf8 100644
> > --- a/arch/parisc/Kconfig
> > +++ b/arch/parisc/Kconfig
> > @@ -254,10 +254,10 @@ config HPUX
> >        depends on !64BIT
> >
> >  config NR_CPUS
> > -       int "Maximum number of CPUs (2-32)"
> > -       range 2 32
> > +       int "Maximum number of CPUs (0-0)"
> > +       range 0 0
> >        depends on SMP
> > -       default "32"
> > +       default "0"
> >
> >  endmenu
> >
> > diff --git a/arch/powerpc/platforms/Kconfig.cputype
> > b/arch/powerpc/platforms/Kconfig.cputype
> > index 425db18..5e607e0 100644
> > --- a/arch/powerpc/platforms/Kconfig.cputype
> > +++ b/arch/powerpc/platforms/Kconfig.cputype
> > @@ -356,11 +356,11 @@ config SMP
> >          If you don't know what to do here, say N.
> >
> >  config NR_CPUS
> > -       int "Maximum number of CPUs (2-8192)"
> > -       range 2 8192
> > +       int "Maximum number of CPUs (0-0)"
> > +       range 0 0
> >        depends on SMP
> > -       default "32" if PPC64
> > -       default "4"
> > +       default "0" if PPC64
> > +       default "0"
> >
> >  config NOT_COHERENT_CACHE
> >        bool
> > diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> > index d172758..f9bc067 100644
> > --- a/arch/s390/Kconfig
> > +++ b/arch/s390/Kconfig
> > @@ -169,15 +169,17 @@ config SMP
> >          Even if you don't know what to do here, say Y.
> >
> >  config NR_CPUS
> > -       int "Maximum number of CPUs (2-64)"
> > -       range 2 64
> > +       int "Maximum number of CPUs (0-0)"
> > +       range 0 0
> >        depends on SMP
> > -       default "32" if !64BIT
> > -       default "64" if 64BIT
> > +       default "0" if !64BIT
> > +       default "0" if 64BIT
> >        help
> >          This allows you to specify the maximum number of CPUs which this
> >          kernel will support.  The maximum supported value is 64 and the
> > -         minimum value which makes sense is 2.
> > +         minimum value which makes sense is 2.  The minimal value that
> > +         makes sense might well be 2, but we all know that the only
> > +         -sane- value is zero!
> >
> >          This is purely to save memory - each supported CPU adds
> >          approximately sixteen kilobytes to the kernel image.
> > diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
> > index 713fb58..5ddc7c0 100644
> > --- a/arch/sh/Kconfig
> > +++ b/arch/sh/Kconfig
> > @@ -705,18 +705,19 @@ config SMP
> >          If you don't know what to do here, say N.
> >
> >  config NR_CPUS
> > -       int "Maximum number of CPUs (2-32)"
> > -       range 2 32
> > +       int "Maximum number of CPUs (0-0)"
> > +       range 0 0
> >        depends on SMP
> > -       default "4" if CPU_SUBTYPE_SHX3
> > -       default "2"
> > +       default "0" if CPU_SUBTYPE_SHX3
> > +       default "0"
> >        help
> >          This allows you to specify the maximum number of CPUs which this
> >          kernel will support.  The maximum supported value is 32 and the
> >          minimum value which makes sense is 2.
> >
> >          This is purely to save memory - each supported CPU adds
> > -         approximately eight kilobytes to the kernel image.
> > +         approximately eight kilobytes to the kernel image.  Debloating
> > +         is the way, NR_CPUS to zero today!!!
> >
> >  config HOTPLUG_CPU
> >        bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
> > diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
> > index ca5580e..0de9f0f 100644
> > --- a/arch/sparc/Kconfig
> > +++ b/arch/sparc/Kconfig
> > @@ -177,10 +177,10 @@ config SMP
> >  config NR_CPUS
> >        int "Maximum number of CPUs"
> >        depends on SMP
> > -       range 2 32 if SPARC32
> > -       range 2 1024 if SPARC64
> > -       default 32 if SPARC32
> > -       default 64 if SPARC64
> > +       range 0 0 if SPARC32
> > +       range 0 0 if SPARC64
> > +       default 0 if SPARC32
> > +       default 0 if SPARC64
> >
> >  source kernel/Kconfig.hz
> >
> > diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
> > index 11270ca..a05112c 100644
> > --- a/arch/tile/Kconfig
> > +++ b/arch/tile/Kconfig
> > @@ -126,14 +126,15 @@ source "init/Kconfig"
> >  menu "Tilera-specific configuration"
> >
> >  config NR_CPUS
> > -       int "Maximum number of tiles (2-255)"
> > -       range 2 255
> > +       int "Maximum number of tiles (0-0)"
> > +       range 0 0
> >        depends on SMP
> > -       default "64"
> > +       default "0"
> >        ---help---
> >          Building with 64 is the recommended value, but a slightly
> >          smaller kernel memory footprint results from using a smaller
> > -         value on chips with fewer tiles.
> > +         value on chips with fewer tiles.  To minimize both memory
> > +         footprint and bugs, use zero and only zero.
> >
> >  source "kernel/time/Kconfig"
> >
> > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> > index 5bed94e..a6977f2 100644
> > --- a/arch/x86/Kconfig
> > +++ b/arch/x86/Kconfig
> > @@ -773,19 +773,21 @@ config MAXSMP
> >
> >  config NR_CPUS
> >        int "Maximum number of CPUs" if SMP && !MAXSMP
> > -       range 2 8 if SMP && X86_32 && !X86_BIGSMP
> > -       range 2 512 if SMP && !MAXSMP
> > -       default "1" if !SMP
> > -       default "4096" if MAXSMP
> > -       default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP ||
> > X86_ES7000)
> > -       default "8" if SMP
> > +       range 0 0 if SMP && X86_32 && !X86_BIGSMP
> > +       range 0 0 if SMP && !MAXSMP
> > +       default "0" if !SMP
> > +       default "0" if MAXSMP
> > +       default "0" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP ||
> > X86_ES7000)
> > +       default "0" if SMP
> >        ---help---
> >          This allows you to specify the maximum number of CPUs which this
> >          kernel will support.  The maximum supported value is 512 and the
> >          minimum value which makes sense is 2.
> >
> >          This is purely to save memory - each supported CPU adds
> > -         approximately eight kilobytes to the kernel image.
> > +         approximately eight kilobytes to the kernel image.  But
> > +         the first supported CPU brings a lot of bugs with it, so
> > +         for ultimate reliability, set the number of CPUs to zero.
> >
> >  config SCHED_SMT
> >        bool "SMT (Hyperthreading) scheduler support"
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-hexagon" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> >

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From: Linas Vepstas <linasvepstas@gmail.com>
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Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state space
Date: Sat, 31 Mar 2012 15:15:00 -0500
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	linux-arm-kernel@lists.infradead.org,
	uclinux-dist-devel@blackfin.uclinux.org,
	linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org,
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To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
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Hi,

I didn't actually try to compile the patch below; it didn't look like
C code so I wasn't sure what compiler to run it through.  I guess maybe
its python?  However, I'm very sure that the patches are completely
correct, because I read them, and I also know Paul.  And I've heard of
Thomas Gleixner.

Thus, please add my ack --

Ack'ed by: Linas Vepstas <linasvepstas@gmail.com>


On Sun, Apr 01, 2012 at 12:33:21AM +0800, Paul E. McKenney was heard to rem=
ark:
> Although there have been numerous complaints about the complexity of
> parallel programming (especially over the past 5-10 years), the plain
> truth is that the incremental complexity of parallel programming over
> that of sequential programming is not as large as is commonly believed.
> Despite that you might have heard, the mind-numbing complexity of modern
> computer systems is not due so much to there being multiple CPUs, but
> rather to there being any CPUs at all.  In short, for the ultimate in
> computer-system simplicity, the optimal choice is NR_CPUS=3D0.
>=20
> This commit therefore limits kernel builds to zero CPUs.  This change
> has the beneficial side effect of rendering all kernel bugs harmless.
> Furthermore, this commit enables additional beneficial changes, for
> example, the removal of those parts of the kernel that are not needed
> when there are zero CPUs.
>=20
> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
> ---
>=20
>  alpha/Kconfig                     |   11 ++++++-----
>  arm/Kconfig                       |    6 +++---
>  blackfin/Kconfig                  |    3 ++-
>  hexagon/Kconfig                   |    9 +++++----
>  ia64/Kconfig                      |    9 +++++----
>  m32r/Kconfig                      |   10 ++++++----
>  mips/Kconfig                      |   21 +++++++++++----------
>  mn10300/Kconfig                   |    3 ++-
>  parisc/Kconfig                    |    6 +++---
>  powerpc/platforms/Kconfig.cputype |    8 ++++----
>  s390/Kconfig                      |   12 +++++++-----
>  sh/Kconfig                        |   11 ++++++-----
>  sparc/Kconfig                     |    8 ++++----
>  tile/Kconfig                      |    9 +++++----
>  x86/Kconfig                       |   16 +++++++++-------
>  15 files changed, 78 insertions(+), 64 deletions(-)
>=20
> diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
> index 56a4df9..1766b4a 100644
> --- a/arch/alpha/Kconfig
> +++ b/arch/alpha/Kconfig
> @@ -541,14 +541,15 @@ config HAVE_DEC_LOCK
>  	default y
> =20
>  config NR_CPUS
> -	int "Maximum number of CPUs (2-32)"
> -	range 2 32
> +	int "Maximum number of CPUs (0-0)"
> +	range 0 0
>  	depends on SMP
> -	default "32" if ALPHA_GENERIC || ALPHA_MARVEL
> -	default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
> +	default "0" if ALPHA_GENERIC || ALPHA_MARVEL
> +	default "0" if !ALPHA_GENERIC && !ALPHA_MARVEL
>  	help
>  	  MARVEL support can handle a maximum of 32 CPUs, all the others
> -          with working support have a maximum of 4 CPUs.
> +          with working support have a maximum of 4 CPUs.  But why take
> +	  chances?  Just stick with zero CPUs.
> =20
>  config ARCH_DISCONTIGMEM_ENABLE
>  	bool "Discontiguous Memory Support (EXPERIMENTAL)"
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index a48aecc..1f07a3a 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -1551,10 +1551,10 @@ config PAGE_OFFSET
>  	default 0xC0000000
> =20
>  config NR_CPUS
> -	int "Maximum number of CPUs (2-32)"
> -	range 2 32
> +	int "Maximum number of CPUs (0-0)"
> +	range 0 0
>  	depends on SMP
> -	default "4"
> +	default "0"
> =20
>  config HOTPLUG_CPU
>  	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
> diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
> index abe5a9e..6a78549 100644
> --- a/arch/blackfin/Kconfig
> +++ b/arch/blackfin/Kconfig
> @@ -241,7 +241,8 @@ config SMP
>  config NR_CPUS
>  	int
>  	depends on SMP
> -	default 2 if BF561
> +	range 0 0
> +	default 0 if BF561
> =20
>  config HOTPLUG_CPU
>  	bool "Support for hot-pluggable CPUs"
> diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
> index 9059e39..daab009 100644
> --- a/arch/hexagon/Kconfig
> +++ b/arch/hexagon/Kconfig
> @@ -158,13 +158,14 @@ config SMP
> =20
>  config NR_CPUS
>  	int "Maximum number of CPUs" if SMP
> -	range 2 6 if SMP
> -	default "1" if !SMP
> -	default "6" if SMP
> +	range 0 0 if SMP
> +	default "0" if !SMP
> +	default "0" if SMP
>  	---help---
>  	  This allows you to specify the maximum number of CPUs which this
>  	  kernel will support.  The maximum supported value is 6 and the
> -	  minimum value which makes sense is 2.
> +	  minimum value which makes sense is 2.  But a limit of zero is
> +	  so much safer!
> =20
>  	  This is purely to save memory - each supported CPU adds
>  	  approximately eight kilobytes to the kernel image.
> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
> index bd72669..fea0e6d 100644
> --- a/arch/ia64/Kconfig
> +++ b/arch/ia64/Kconfig
> @@ -373,16 +373,17 @@ config SMP
>  	  If you don't know what to do here, say N.
> =20
>  config NR_CPUS
> -	int "Maximum number of CPUs (2-4096)"
> -	range 2 4096
> +	int "Maximum number of CPUs (0-0)"
> +	range 0 0
>  	depends on SMP
> -	default "4096"
> +	default "0"
>  	help
>  	  You should set this to the number of CPUs in your system, but
>  	  keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
>  	  only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
>  	  than 64 will cause the use of a CPU mask array, causing a small
> -	  performance hit.
> +	  performance hit.  And setting it larger than zero risks all
> +	  manner of software bugs, so we just play it safe.
> =20
>  config HOTPLUG_CPU
>  	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
> diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
> index ef80a65..68b9e88 100644
> --- a/arch/m32r/Kconfig
> +++ b/arch/m32r/Kconfig
> @@ -300,14 +300,16 @@ config CHIP_M32700_TS1
>  	default n
> =20
>  config NR_CPUS
> -	int "Maximum number of CPUs (2-32)"
> -	range 2 32
> +	int "Maximum number of CPUs (0-0)"
> +	range 0 0
>  	depends on SMP
> -	default "2"
> +	default "0"
>  	help
>  	  This allows you to specify the maximum number of CPUs which this
>  	  kernel will support.  The maximum supported value is 32 and the
> -	  minimum value which makes sense is 2.
> +	  minimum value which makes sense is 2.  Zero may not make sense,
> +	  but given that there is much in this world that does not make
> +	  sense, zero it is!
> =20
>  	  This is purely to save memory - each supported CPU adds
>  	  approximately eight kilobytes to the kernel image.
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index 5ab6e89..3d7d06c 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -2192,16 +2192,16 @@ config NR_CPUS_DEFAULT_64
>  	bool
> =20
>  config NR_CPUS
> -	int "Maximum number of CPUs (2-64)"
> -	range 1 64 if NR_CPUS_DEFAULT_1
> +	int "Maximum number of CPUs (0-0)"
> +	range 0 0 if NR_CPUS_DEFAULT_1
>  	depends on SMP
> -	default "1" if NR_CPUS_DEFAULT_1
> -	default "2" if NR_CPUS_DEFAULT_2
> -	default "4" if NR_CPUS_DEFAULT_4
> -	default "8" if NR_CPUS_DEFAULT_8
> -	default "16" if NR_CPUS_DEFAULT_16
> -	default "32" if NR_CPUS_DEFAULT_32
> -	default "64" if NR_CPUS_DEFAULT_64
> +	default "0" if NR_CPUS_DEFAULT_1
> +	default "0" if NR_CPUS_DEFAULT_2
> +	default "0" if NR_CPUS_DEFAULT_4
> +	default "0" if NR_CPUS_DEFAULT_8
> +	default "0" if NR_CPUS_DEFAULT_16
> +	default "0" if NR_CPUS_DEFAULT_32
> +	default "0" if NR_CPUS_DEFAULT_64
>  	help
>  	  This allows you to specify the maximum number of CPUs which this
>  	  kernel will support.  The maximum supported value is 32 for 32-bit
> @@ -2212,7 +2212,8 @@ config NR_CPUS
>  	  This is purely to save memory - each supported CPU adds
>  	  approximately eight kilobytes to the kernel image.  For best
>  	  performance should round up your number of processors to the next
> -	  power of two.
> +	  power of two.  And just think how much more memory we will
> +	  save by setting the limit to zero!
> =20
>  source "kernel/time/Kconfig"
> =20
> diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
> index 8f1c40d..85fc112 100644
> --- a/arch/mn10300/Kconfig
> +++ b/arch/mn10300/Kconfig
> @@ -201,7 +201,8 @@ config SMP
>  config NR_CPUS
>  	int
>  	depends on SMP
> -	default "2"
> +	range 0 0
> +	default "0"
> =20
>  source "kernel/Kconfig.preempt"
> =20
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index 242a1b7..358eaf8 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -254,10 +254,10 @@ config HPUX
>  	depends on !64BIT
> =20
>  config NR_CPUS
> -	int "Maximum number of CPUs (2-32)"
> -	range 2 32
> +	int "Maximum number of CPUs (0-0)"
> +	range 0 0
>  	depends on SMP
> -	default "32"
> +	default "0"
> =20
>  endmenu
> =20
> diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platfo=
rms/Kconfig.cputype
> index 425db18..5e607e0 100644
> --- a/arch/powerpc/platforms/Kconfig.cputype
> +++ b/arch/powerpc/platforms/Kconfig.cputype
> @@ -356,11 +356,11 @@ config SMP
>  	  If you don't know what to do here, say N.
> =20
>  config NR_CPUS
> -	int "Maximum number of CPUs (2-8192)"
> -	range 2 8192
> +	int "Maximum number of CPUs (0-0)"
> +	range 0 0
>  	depends on SMP
> -	default "32" if PPC64
> -	default "4"
> +	default "0" if PPC64
> +	default "0"
> =20
>  config NOT_COHERENT_CACHE
>  	bool
> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> index d172758..f9bc067 100644
> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -169,15 +169,17 @@ config SMP
>  	  Even if you don't know what to do here, say Y.
> =20
>  config NR_CPUS
> -	int "Maximum number of CPUs (2-64)"
> -	range 2 64
> +	int "Maximum number of CPUs (0-0)"
> +	range 0 0
>  	depends on SMP
> -	default "32" if !64BIT
> -	default "64" if 64BIT
> +	default "0" if !64BIT
> +	default "0" if 64BIT
>  	help
>  	  This allows you to specify the maximum number of CPUs which this
>  	  kernel will support.  The maximum supported value is 64 and the
> -	  minimum value which makes sense is 2.
> +	  minimum value which makes sense is 2.  The minimal value that
> +	  makes sense might well be 2, but we all know that the only
> +	  -sane- value is zero!
> =20
>  	  This is purely to save memory - each supported CPU adds
>  	  approximately sixteen kilobytes to the kernel image.
> diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
> index 713fb58..5ddc7c0 100644
> --- a/arch/sh/Kconfig
> +++ b/arch/sh/Kconfig
> @@ -705,18 +705,19 @@ config SMP
>  	  If you don't know what to do here, say N.
> =20
>  config NR_CPUS
> -	int "Maximum number of CPUs (2-32)"
> -	range 2 32
> +	int "Maximum number of CPUs (0-0)"
> +	range 0 0
>  	depends on SMP
> -	default "4" if CPU_SUBTYPE_SHX3
> -	default "2"
> +	default "0" if CPU_SUBTYPE_SHX3
> +	default "0"
>  	help
>  	  This allows you to specify the maximum number of CPUs which this
>  	  kernel will support.  The maximum supported value is 32 and the
>  	  minimum value which makes sense is 2.
> =20
>  	  This is purely to save memory - each supported CPU adds
> -	  approximately eight kilobytes to the kernel image.
> +	  approximately eight kilobytes to the kernel image.  Debloating
> +	  is the way, NR_CPUS to zero today!!!
> =20
>  config HOTPLUG_CPU
>  	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
> diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
> index ca5580e..0de9f0f 100644
> --- a/arch/sparc/Kconfig
> +++ b/arch/sparc/Kconfig
> @@ -177,10 +177,10 @@ config SMP
>  config NR_CPUS
>  	int "Maximum number of CPUs"
>  	depends on SMP
> -	range 2 32 if SPARC32
> -	range 2 1024 if SPARC64
> -	default 32 if SPARC32
> -	default 64 if SPARC64
> +	range 0 0 if SPARC32
> +	range 0 0 if SPARC64
> +	default 0 if SPARC32
> +	default 0 if SPARC64
> =20
>  source kernel/Kconfig.hz
> =20
> diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
> index 11270ca..a05112c 100644
> --- a/arch/tile/Kconfig
> +++ b/arch/tile/Kconfig
> @@ -126,14 +126,15 @@ source "init/Kconfig"
>  menu "Tilera-specific configuration"
> =20
>  config NR_CPUS
> -	int "Maximum number of tiles (2-255)"
> -	range 2 255
> +	int "Maximum number of tiles (0-0)"
> +	range 0 0
>  	depends on SMP
> -	default "64"
> +	default "0"
>  	---help---
>  	  Building with 64 is the recommended value, but a slightly
>  	  smaller kernel memory footprint results from using a smaller
> -	  value on chips with fewer tiles.
> +	  value on chips with fewer tiles.  To minimize both memory
> +	  footprint and bugs, use zero and only zero.
> =20
>  source "kernel/time/Kconfig"
> =20
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 5bed94e..a6977f2 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -773,19 +773,21 @@ config MAXSMP
> =20
>  config NR_CPUS
>  	int "Maximum number of CPUs" if SMP && !MAXSMP
> -	range 2 8 if SMP && X86_32 && !X86_BIGSMP
> -	range 2 512 if SMP && !MAXSMP
> -	default "1" if !SMP
> -	default "4096" if MAXSMP
> -	default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES=
7000)
> -	default "8" if SMP
> +	range 0 0 if SMP && X86_32 && !X86_BIGSMP
> +	range 0 0 if SMP && !MAXSMP
> +	default "0" if !SMP
> +	default "0" if MAXSMP
> +	default "0" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7=
000)
> +	default "0" if SMP
>  	---help---
>  	  This allows you to specify the maximum number of CPUs which this
>  	  kernel will support.  The maximum supported value is 512 and the
>  	  minimum value which makes sense is 2.
> =20
>  	  This is purely to save memory - each supported CPU adds
> -	  approximately eight kilobytes to the kernel image.
> +	  approximately eight kilobytes to the kernel image.  But
> +	  the first supported CPU brings a lot of bugs with it, so
> +	  for ultimate reliability, set the number of CPUs to zero.
> =20
>  config SCHED_SMT
>  	bool "SMT (Hyperthreading) scheduler support"
>=20
> --
> To unsubscribe from this list: send the line "unsubscribe linux-hexagon" =
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From - Thu Nov 08 21:08:04 2018
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Path: news.gmane.org!not-for-mail
From: Randy Dunlap <rdunlap@xenotime.net>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state space
Date: Sat, 31 Mar 2012 13:25:02 -0700
Lines: 23
Approved: news@gmane.org
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References: <20120331163321.GA15809@linux.vnet.ibm.com> <20120331201500.GA27640@linas.org>
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Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
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To: Linas Vepstas <linasvepstas@gmail.com>
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On 03/31/2012 01:15 PM, Linas Vepstas wrote:

> 
> Hi,
> 
> I didn't actually try to compile the patch below; it didn't look like
> C code so I wasn't sure what compiler to run it through.  I guess maybe
> its python?  However, I'm very sure that the patches are completely
> correct, because I read them, and I also know Paul.  And I've heard of
> Thomas Gleixner.


x86_64 defconfig has many build errors and warnings.  :(

back to my abacus.

-- 
~Randy
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From - Thu Nov 08 21:08:04 2018
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Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.hexagon,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state space
Date: Sat, 31 Mar 2012 13:43:32 -0700
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To: Randy Dunlap <rdunlap@xenotime.net>
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On Sat, Mar 31, 2012 at 01:25:02PM -0700, Randy Dunlap wrote:
> On 03/31/2012 01:15 PM, Linas Vepstas wrote:
> 
> > 
> > Hi,
> > 
> > I didn't actually try to compile the patch below; it didn't look like
> > C code so I wasn't sure what compiler to run it through.  I guess maybe
> > its python?  However, I'm very sure that the patches are completely
> > correct, because I read them, and I also know Paul.  And I've heard of
> > Thomas Gleixner.
> 
> 
> x86_64 defconfig has many build errors and warnings.  :(

I suggest removing the code containing the errors and warnings.  I bet
that the offending code is not needed when running with zero CPUs.

> back to my abacus.

;-)

							Thanx, Paul

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Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state
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On Sun, 2012-04-01 at 00:33 +0800, Paul E. McKenney wrote:
> Although there have been numerous complaints about the complexity of
> parallel programming (especially over the past 5-10 years), the plain
> truth is that the incremental complexity of parallel programming over
> that of sequential programming is not as large as is commonly believed.
> Despite that you might have heard, the mind-numbing complexity of modern
> computer systems is not due so much to there being multiple CPUs, but
> rather to there being any CPUs at all.  In short, for the ultimate in
> computer-system simplicity, the optimal choice is NR_CPUS=0.
> 
> This commit therefore limits kernel builds to zero CPUs.  This change
> has the beneficial side effect of rendering all kernel bugs harmless.
> Furthermore, this commit enables additional beneficial changes, for
> example, the removal of those parts of the kernel that are not needed
> when there are zero CPUs.
> 
> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
> ---

Hmm... I believe you could go one step forward and allow negative values
as well. Antimatter was proven to exist after all.

Hint : nr_cpu_ids is an "int", not an "unsigned int"

Bonus: Existing bugs become "must have" features.

Of course there is no hurry and this can wait 365 days.


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From - Thu Nov 08 21:08:04 2018
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Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state space
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On Sat, Mar 31, 2012 at 11:00:08PM +0200, Eric Dumazet wrote:
> On Sun, 2012-04-01 at 00:33 +0800, Paul E. McKenney wrote:
> > Although there have been numerous complaints about the complexity of
> > parallel programming (especially over the past 5-10 years), the plain
> > truth is that the incremental complexity of parallel programming over
> > that of sequential programming is not as large as is commonly believed.
> > Despite that you might have heard, the mind-numbing complexity of modern
> > computer systems is not due so much to there being multiple CPUs, but
> > rather to there being any CPUs at all.  In short, for the ultimate in
> > computer-system simplicity, the optimal choice is NR_CPUS=0.
> > 
> > This commit therefore limits kernel builds to zero CPUs.  This change
> > has the beneficial side effect of rendering all kernel bugs harmless.
> > Furthermore, this commit enables additional beneficial changes, for
> > example, the removal of those parts of the kernel that are not needed
> > when there are zero CPUs.
> > 
> > Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> > Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
> > ---
> 
> Hmm... I believe you could go one step forward and allow negative values
> as well. Antimatter was proven to exist after all.
> 
> Hint : nr_cpu_ids is an "int", not an "unsigned int"
> 
> Bonus: Existing bugs become "must have" features.

;-) ;-) ;-)

> Of course there is no hurry and this can wait 365 days.

James Bottomley suggested imaginary numbers of CPUs some time back,
and I suppose there is no reason you cannot have fractional numbers of
CPUs, and perhaps irrational numbers as well.  Of course, these last two
would require use of floating-point arithmetic (or something similar)
in the kernel.  So I guess we have at several years worth.  Over to you
for the negative numbers.  ;-)

							Thanx, Paul

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From - Thu Nov 08 21:08:04 2018
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Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state space
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To: paulmck@linux.vnet.ibm.com
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With that patchset in mind, I am working on a really huge patch, which 
will greatly simplify the Linux kernel  for the real problem of having 
that number of CPUs.

That patch will have a lot of changes all over the architectures, so 
what will be the best way to post it? Should I split it architecture 
dependend and into one generic part.

Currently it is a large blob of millions of changes, but will greatly 
simplify the Linux kernel.

Regards,

Lorenz Kolb

Am 31.03.2012 23:21, schrieb Paul E. McKenney:
> On Sat, Mar 31, 2012 at 11:00:08PM +0200, Eric Dumazet wrote:
>    
>> On Sun, 2012-04-01 at 00:33 +0800, Paul E. McKenney wrote:
>>      
>>> Although there have been numerous complaints about the complexity of
>>> parallel programming (especially over the past 5-10 years), the plain
>>> truth is that the incremental complexity of parallel programming over
>>> that of sequential programming is not as large as is commonly believed.
>>> Despite that you might have heard, the mind-numbing complexity of modern
>>> computer systems is not due so much to there being multiple CPUs, but
>>> rather to there being any CPUs at all.  In short, for the ultimate in
>>> computer-system simplicity, the optimal choice is NR_CPUS=0.
>>>
>>> This commit therefore limits kernel builds to zero CPUs.  This change
>>> has the beneficial side effect of rendering all kernel bugs harmless.
>>> Furthermore, this commit enables additional beneficial changes, for
>>> example, the removal of those parts of the kernel that are not needed
>>> when there are zero CPUs.
>>>
>>> Signed-off-by: Paul E. McKenney<paulmck@linux.vnet.ibm.com>
>>> Reviewed-by: Thomas Gleixner<tglx@linutronix.de>
>>> ---
>>>        
>> Hmm... I believe you could go one step forward and allow negative values
>> as well. Antimatter was proven to exist after all.
>>
>> Hint : nr_cpu_ids is an "int", not an "unsigned int"
>>
>> Bonus: Existing bugs become "must have" features.
>>      
> ;-) ;-) ;-)
>
>    
>> Of course there is no hurry and this can wait 365 days.
>>      
> James Bottomley suggested imaginary numbers of CPUs some time back,
> and I suppose there is no reason you cannot have fractional numbers of
> CPUs, and perhaps irrational numbers as well.  Of course, these last two
> would require use of floating-point arithmetic (or something similar)
> in the kernel.  So I guess we have at several years worth.  Over to you
> for the negative numbers.  ;-)
>
> 							Thanx, Paul
>
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@lists.ozlabs.org
> https://lists.ozlabs.org/listinfo/linuxppc-dev
>    




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Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state
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On Sun, Apr 01, 2012 at 12:33:21AM +0800, Paul E. McKenney wrote:
> Although there have been numerous complaints about the complexity of
> parallel programming (especially over the past 5-10 years), the plain
> truth is that the incremental complexity of parallel programming over
> that of sequential programming is not as large as is commonly believed.
> Despite that you might have heard, the mind-numbing complexity of modern
> computer systems is not due so much to there being multiple CPUs, but
> rather to there being any CPUs at all.  In short, for the ultimate in
> computer-system simplicity, the optimal choice is NR_CPUS=0.
> 
> This commit therefore limits kernel builds to zero CPUs.  This change
> has the beneficial side effect of rendering all kernel bugs harmless.
> Furthermore, this commit enables additional beneficial changes, for
> example, the removal of those parts of the kernel that are not needed
> when there are zero CPUs.
> 
> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>

Great work, but I don't think you've gone far enough with this.

What would really help is if you could consolidate all these NR_CPUS
definitions into one place so we don't have essentially the same thing
scattered across all these architectures.  We're already doing this on
ARM across our platforms, and its about time such an approach was taken
across the entire kernel tree.

It looks like the MIPS solution would be the best one to pick.
Could you rework your patch to do this please?

While you're at it, you might like to consider that having zero CPUs
makes all this architecture support redundant, so maybe you've missed
a trick there - according to my count, we could get rid of almost 3
million lines of code from arch.  We could replace all that with a
single standard implementation.

Bah, maybe I shouldn't have pushed that bpf_jit code for ARM after all...

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Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state space
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To: Lorenz Kolb <linuxppcemb@lkmail.de>
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On Sun, Apr 01, 2012 at 12:19:25AM +0200, Lorenz Kolb wrote:
> With that patchset in mind, I am working on a really huge patch,
> which will greatly simplify the Linux kernel  for the real problem
> of having that number of CPUs.
> 
> That patch will have a lot of changes all over the architectures, so
> what will be the best way to post it? Should I split it architecture
> dependend and into one generic part.
> 
> Currently it is a large blob of millions of changes, but will
> greatly simplify the Linux kernel.

Perhaps a branch on a public git tree?  If you are doing what I suspect
you are, you will end up with a very large patch set.  ;-)

							Thanx, Paul

> Regards,
> 
> Lorenz Kolb
> 
> Am 31.03.2012 23:21, schrieb Paul E. McKenney:
> >On Sat, Mar 31, 2012 at 11:00:08PM +0200, Eric Dumazet wrote:
> >>On Sun, 2012-04-01 at 00:33 +0800, Paul E. McKenney wrote:
> >>>Although there have been numerous complaints about the complexity of
> >>>parallel programming (especially over the past 5-10 years), the plain
> >>>truth is that the incremental complexity of parallel programming over
> >>>that of sequential programming is not as large as is commonly believed.
> >>>Despite that you might have heard, the mind-numbing complexity of modern
> >>>computer systems is not due so much to there being multiple CPUs, but
> >>>rather to there being any CPUs at all.  In short, for the ultimate in
> >>>computer-system simplicity, the optimal choice is NR_CPUS=0.
> >>>
> >>>This commit therefore limits kernel builds to zero CPUs.  This change
> >>>has the beneficial side effect of rendering all kernel bugs harmless.
> >>>Furthermore, this commit enables additional beneficial changes, for
> >>>example, the removal of those parts of the kernel that are not needed
> >>>when there are zero CPUs.
> >>>
> >>>Signed-off-by: Paul E. McKenney<paulmck@linux.vnet.ibm.com>
> >>>Reviewed-by: Thomas Gleixner<tglx@linutronix.de>
> >>>---
> >>Hmm... I believe you could go one step forward and allow negative values
> >>as well. Antimatter was proven to exist after all.
> >>
> >>Hint : nr_cpu_ids is an "int", not an "unsigned int"
> >>
> >>Bonus: Existing bugs become "must have" features.
> >;-) ;-) ;-)
> >
> >>Of course there is no hurry and this can wait 365 days.
> >James Bottomley suggested imaginary numbers of CPUs some time back,
> >and I suppose there is no reason you cannot have fractional numbers of
> >CPUs, and perhaps irrational numbers as well.  Of course, these last two
> >would require use of floating-point arithmetic (or something similar)
> >in the kernel.  So I guess we have at several years worth.  Over to you
> >for the negative numbers.  ;-)
> >
> >							Thanx, Paul
> >
> >_______________________________________________
> >Linuxppc-dev mailing list
> >Linuxppc-dev@lists.ozlabs.org
> >https://lists.ozlabs.org/listinfo/linuxppc-dev
> 

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From - Thu Nov 08 21:08:04 2018
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Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state	space
Date: Sat, 31 Mar 2012 18:22:12 -0700
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On Sat, Mar 31, 2012 at 11:32:00PM +0100, Russell King - ARM Linux wrote:
> On Sun, Apr 01, 2012 at 12:33:21AM +0800, Paul E. McKenney wrote:
> > Although there have been numerous complaints about the complexity of
> > parallel programming (especially over the past 5-10 years), the plain
> > truth is that the incremental complexity of parallel programming over
> > that of sequential programming is not as large as is commonly believed.
> > Despite that you might have heard, the mind-numbing complexity of modern
> > computer systems is not due so much to there being multiple CPUs, but
> > rather to there being any CPUs at all.  In short, for the ultimate in
> > computer-system simplicity, the optimal choice is NR_CPUS=0.
> > 
> > This commit therefore limits kernel builds to zero CPUs.  This change
> > has the beneficial side effect of rendering all kernel bugs harmless.
> > Furthermore, this commit enables additional beneficial changes, for
> > example, the removal of those parts of the kernel that are not needed
> > when there are zero CPUs.
> > 
> > Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> > Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
> 
> Great work, but I don't think you've gone far enough with this.
> 
> What would really help is if you could consolidate all these NR_CPUS
> definitions into one place so we don't have essentially the same thing
> scattered across all these architectures.  We're already doing this on
> ARM across our platforms, and its about time such an approach was taken
> across the entire kernel tree.
> 
> It looks like the MIPS solution would be the best one to pick.
> Could you rework your patch to do this please?
> 
> While you're at it, you might like to consider that having zero CPUs
> makes all this architecture support redundant, so maybe you've missed
> a trick there - according to my count, we could get rid of almost 3
> million lines of code from arch.  We could replace all that with a
> single standard implementation.
> 
> Bah, maybe I shouldn't have pushed that bpf_jit code for ARM after all...

;-) ;-) ;-)

							Thanx, Paul

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Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state space
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On Sun, Apr 01, 2012 at 12:33:21AM +0800, Paul E. McKenney wrote:
> Although there have been numerous complaints about the complexity of
> parallel programming (especially over the past 5-10 years), the plain
> truth is that the incremental complexity of parallel programming over
> that of sequential programming is not as large as is commonly believed.
> Despite that you might have heard, the mind-numbing complexity of modern
> computer systems is not due so much to there being multiple CPUs, but
> rather to there being any CPUs at all.  In short, for the ultimate in
> computer-system simplicity, the optimal choice is NR_CPUS=0.
> 
> This commit therefore limits kernel builds to zero CPUs.  This change
> has the beneficial side effect of rendering all kernel bugs harmless.
> Furthermore, this commit enables additional beneficial changes, for
> example, the removal of those parts of the kernel that are not needed
> when there are zero CPUs.
> 
> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>

Looks good, thanks for doing that.

Btw, I just got confirmation from hw folk that we can actually give you
hardware support for that code with an upcoming CPU which has NR_CPUS=0
cores.

Oh, and additionally, we can disable some of those so getting into the
negative is also doable from the hw perspective, so feel free to explore
that side of the problem too.

ACK.

-- 
Regards/Gruss,
    Boris.
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From - Thu Nov 08 21:08:05 2018
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The attach change has evolved over many months.  It dramatically  
improves the
performance and stability of PA8800/PA8900 machines with large caches.

It cuts the build time for GCC by more than a factor of two.

Without the change, I would get many random HPMCs.  The GCC libgomp  
testsuite
would crash my rp3440 regularly.  With the patch, I haven't had a HPMC  
in more
than three months.  Pthread support is also improved, and as a result,  
it is now possible
to build many Debian packages that gave problems (e.g., perl, python,  
git).

The largest part of the performance increase comes from the changes to  
flush_cache_mm.
Minor increases come from loop unrolling in pacache.S.

I removed the prefetch code because I found in testing that it didn't  
help performance.
Note the previous implementation did a couple of prefetches from the  
next page...

I have kept code to clear/copy using the tmpalias region but it is my  
impression that
using the kernel mappings is slightly faster and works fine.  The  
tmpalias code can be
enabled if desired by simply defining CONFIG_PARISC_TMPALIAS in page.h.

It came to my attention that the tmpalias operations are not fully  
reentrant because
the entry in the TLB could get replaced.  This happens when the same  
page is used
for two different operations.  So, I added preempt_disable()/ 
preempt_enable() pairs
around the tmpalias operations.

Another issue with the tmpalias operations is the TLB purge.  A full  
multi CPU purge
needs a lock/unlock around the purge to prevent contention.   
Fortunately, we only
need to use a local purge on PA2.0.  The lock is only needed for SMP  
PA1.1 machines.

I implemented clear_page_asm and copy_page_asm as optimized clear/copy  
routines.
At one time, I had cache prefetch code in them, but I didn't find it  
improved performance.
As they stand, there is not much difference in performance from memset  
and memcpy.

Regarding TLB handling, I added code to purge the TLB entries in the  
set_pte_at macro
and ptep_set_wrprotect.  In the latter case, this ensures that the  
address range is actually
write protected.  The cache flush is only done if the page is copied.

Signed-off-by: John David Anglin <dave.anglin@bell.net>


--Apple-Mail-85-655675035
Content-Disposition: attachment; filename="cache-tlb-patch.txt"
Content-Type: text/plain; x-unix-mode=0644; name="cache-tlb-patch.txt"
Content-Transfer-Encoding: 7bit

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index da601dd..08f85dc 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -115,7 +115,9 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 {
 	if (PageAnon(page)) {
 		flush_tlb_page(vma, vmaddr);
+		preempt_disable();
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
+		preempt_enable();
 	}
 }
 
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index a84cc1f..9400a62 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -21,15 +21,27 @@
 #include <asm/types.h>
 #include <asm/cache.h>
 
-#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define clear_page(page)	clear_page_asm((void *)(page))
+#define copy_page(to,from)	copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
+void clear_page_asm(void *page);
+void copy_page_asm(void *to, void *from);
+void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+
+// #define CONFIG_PARISC_TMPALIAS
+
+#ifdef CONFIG_PARISC_TMPALIAS
+void clear_user_highpage(struct page *page, unsigned long vaddr);
+#define clear_user_highpage clear_user_highpage
+struct vm_area_struct;
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma);
+#define __HAVE_ARCH_COPY_USER_HIGHPAGE
+#endif
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 22dadeb..891b369 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -40,7 +40,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm,addr,ptep, pteval)                        \
+        do{                                                     \
+                set_pte(ptep,pteval);                           \
+                purge_tlb_entries(mm,addr);                     \
+        } while(0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -460,10 +467,13 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #ifdef CONFIG_SMP
 	unsigned long new, old;
 
+	/* ??? This might be racy because the page table updates in
+	   entry.S don't use the same lock.  */
 	do {
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 83335f3..9561f1b 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -268,9 +268,11 @@ static inline void
 __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 		   unsigned long physaddr)
 {
+	preempt_disable();
 	flush_dcache_page_asm(physaddr, vmaddr);
 	if (vma->vm_flags & VM_EXEC)
 		flush_icache_page_asm(physaddr, vmaddr);
+	preempt_enable();
 }
 
 void flush_dcache_page(struct page *page)
@@ -316,7 +318,7 @@ void flush_dcache_page(struct page *page)
 		flush_tlb_page(mpnt, addr);
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
+			if (old_addr && parisc_requires_coherency())
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
 			old_addr = addr;
 		}
@@ -331,17 +333,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -375,20 +366,9 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
 
-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
-
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
-{
-	unsigned long flags;
-
-	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start(flags);
-	pdtlb_kernel(page);
-	purge_tlb_end(flags);
-	clear_user_page_asm(page, vaddr);
-}
-EXPORT_SYMBOL(clear_user_page);
+extern void purge_kernel_dcache_page_asm(unsigned long);
+extern void clear_user_page_asm(void *, unsigned long);
+extern void copy_user_page_asm(void *, void *, unsigned long);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
@@ -401,11 +381,26 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
+void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
+{
+	clear_page_asm(vto);
+	if (!parisc_requires_coherency())
+		flush_kernel_dcache_page_asm(vto);
+}
+EXPORT_SYMBOL(clear_user_page);
+
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-		    struct page *pg)
+	struct page *pg)
 {
-	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
+	/* Copy using kernel mapping.  No coherency is needed
+	   (all in kmap/kunmap) on machines that don't support
+	   non-equivalent aliasing.  However, the `from' page
+	   needs to be flushed before it can be accessed through
+	   the kernel mapping. */
+	preempt_disable();
+	flush_dcache_page_asm(__pa(vfrom), vaddr);
+	preempt_enable();
+	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
 		flush_kernel_dcache_page_asm(vto);
 }
@@ -460,8 +455,57 @@ void flush_cache_all(void)
 	on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
 }
 
+static inline unsigned long mm_total_size(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long usize = 0;
+
+	for (vma = mm->mmap; vma; vma = vma->vm_next)
+		usize += vma->vm_end - vma->vm_start;
+	return usize;
+}
+
+static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
+{
+	pte_t *ptep = NULL;
+
+        if (!pgd_none(*pgd)) {
+                pud_t *pud = pud_offset(pgd, addr);
+                if (!pud_none(*pud)) {
+                        pmd_t *pmd = pmd_offset(pud, addr);
+                        if (!pmd_none(*pmd)) {
+                                ptep = pte_offset_map(pmd, addr);
+                        }
+                }
+        }
+	return ptep;
+}
+
 void flush_cache_mm(struct mm_struct *mm)
 {
+	/* Flushing the whole cache on each cpu takes forever on
+	   rp3440, etc.  So, avoid it if the mm isn't too big.
+	   Note: This approach is faster than a range flush when the
+	   context is current, and it works even when non current.  */
+	if (mm_total_size(mm) < parisc_cache_flush_threshold) {
+		struct vm_area_struct *vma;
+		pgd_t *pgd = mm->pgd;
+
+		for (vma = mm->mmap; vma; vma = vma->vm_next) {
+			unsigned long addr;
+
+			for (addr = vma->vm_start; addr < vma->vm_end; addr += PAGE_SIZE) {
+				pte_t *ptep = get_ptep(pgd, addr);
+				if (ptep != NULL) {
+					pte_t pte = *ptep;
+					if (pte_present(pte))
+						__flush_cache_page(vma, addr, page_to_phys(pte_page(pte)));
+				}
+			}
+		}
+		return;
+	}
+
 #ifdef CONFIG_SMP
 	flush_cache_all();
 #else
@@ -487,20 +531,35 @@ flush_user_icache_range(unsigned long start, unsigned long end)
 		flush_instruction_cache();
 }
 
-
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	int sr3;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
+	if ((end - start) < parisc_cache_flush_threshold) {
+		if (vma->vm_mm->context == mfsp(3)) {
+			flush_user_dcache_range_asm(start,end);
+			if(vma->vm_flags & VM_EXEC)
+				flush_user_icache_range_asm(start,end);
+		} else {
+			unsigned long addr;
+			pgd_t *pgd = vma->vm_mm->pgd;
+
+			for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+				pte_t *ptep = get_ptep(pgd, addr);
+				if (ptep != NULL) {
+					pte_t pte = *ptep;
+					if (pte_present(pte))
+						flush_cache_page(vma, addr, pte_pfn(pte));
+				}
+			}
+		}
 	} else {
+#ifdef CONFIG_SMP
 		flush_cache_all();
+#else
+		flush_cache_all_local();
+#endif
 	}
 }
 
@@ -513,3 +572,81 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
+
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	mtsp(mm->context,1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+}
+
+#ifdef CONFIG_PARISC_TMPALIAS
+
+void clear_user_highpage(struct page *page, unsigned long vaddr)
+{
+	void *vto;
+	unsigned long flags;
+
+	/* Clear using TMPALIAS region.  The page doesn't need to
+	   be flushed but the kernel mapping needs to be purged.  */
+
+	vto = kmap_atomic(page, KM_USER0);
+
+	/* The PA-RISC 2.0 Architecture book states on page F-6:
+	   "Before a write-capable translation is enabled, *all*
+	   non-equivalently-aliased translations must be removed
+	   from the page table and purged from the TLB.  (Note
+	   that the caches are not required to be flushed at this
+	   time.)  Before any non-equivalent aliased translation
+	   is re-enabled, the virtual address range for the writeable
+	   page (the entire page) must be flushed from the cache,
+	   and the write-capable translation removed from the page
+	   table and purged from the TLB."  */
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	purge_tlb_end(flags);
+	preempt_disable();
+	clear_user_page_asm(vto, vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma)
+{
+	void *vfrom, *vto;
+	unsigned long flags;
+
+	/* Copy using TMPALIAS region.  This has the advantage
+	   that the `from' page doesn't need to be flushed.  However,
+	   the `to' page must be flushed in copy_user_page_asm since
+	   it can be used to bring in executable code.  */
+
+	vfrom = kmap_atomic(from, KM_USER0);
+	vto = kmap_atomic(to, KM_USER1);
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	pdtlb_kernel(vfrom);
+	purge_tlb_end(flags);
+	preempt_disable();
+	copy_user_page_asm(vto, vfrom, vaddr);
+	flush_dcache_page_asm(__pa(vto), vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER1); */
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+#endif /* CONFIG_PARISC_TMPALIAS */
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 93ff3d9..9a29e34 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -199,7 +199,6 @@ ENTRY(flush_instruction_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
 	load32		cache_info, %r1
 
 	/* Flush Instruction Cache */
@@ -208,20 +207,46 @@ ENTRY(flush_instruction_cache_local)
 	LDREG		ICACHE_STRIDE(%r1), %arg1
 	LDREG		ICACHE_COUNT(%r1), %arg2
 	LDREG		ICACHE_LOOP(%r1), %arg3
-	rsm             PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fioneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fisync	/* If loop < 0, do sync */
 
 fimanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fimanyloop	/* Adjusted inner loop decr */
-	fice            %r0(%sr1, %arg0)
-	fice,m		%arg1(%sr1, %arg0)	/* Last fice and addr adjust */
+	fice            %r0(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)	/* Last fice and addr adjust */
 	movb,tr		%arg3, %r31, fimanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fisync	/* Outer loop decr */
 
 fioneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fioneloop	/* Outer loop count decr */
-	fice,m		%arg1(%sr1, %arg0)	/* Fice for one loop */
+	/* Some implementations may flush with a single fice instruction */
+	cmpib,COND(>>=),n	15, %arg2, fioneloop2
+
+fioneloop1:
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	addib,COND(>)	-16, %arg2, fioneloop1
+	fice,m		%arg1(%sr2, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fisync	/* Predict branch taken */
+
+fioneloop2:
+	addib,COND(>)	-1, %arg2, fioneloop2	/* Outer loop count decr */
+	fice,m		%arg1(%sr2, %arg0)	/* Fice for one loop */
 
 fisync:
 	sync
@@ -240,8 +265,7 @@ ENTRY(flush_data_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
-	load32 		cache_info, %r1
+	load32		cache_info, %r1
 
 	/* Flush Data Cache */
 
@@ -249,20 +273,46 @@ ENTRY(flush_data_cache_local)
 	LDREG		DCACHE_STRIDE(%r1), %arg1
 	LDREG		DCACHE_COUNT(%r1), %arg2
 	LDREG		DCACHE_LOOP(%r1), %arg3
-	rsm		PSW_SM_I, %r22
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fdoneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fdsync	/* If loop < 0, do sync */
 
 fdmanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fdmanyloop	/* Adjusted inner loop decr */
-	fdce		%r0(%sr1, %arg0)
-	fdce,m		%arg1(%sr1, %arg0)	/* Last fdce and addr adjust */
+	fdce		%r0(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)	/* Last fdce and addr adjust */
 	movb,tr		%arg3, %r31, fdmanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fdsync	/* Outer loop decr */
 
 fdoneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fdoneloop	/* Outer loop count decr */
-	fdce,m		%arg1(%sr1, %arg0)	/* Fdce for one loop */
+	/* Some implementations may flush with a single fdce instruction */
+	cmpib,COND(>>=),n	15, %arg2, fdoneloop2
+
+fdoneloop1:
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	addib,COND(>)	-16, %arg2, fdoneloop1
+	fdce,m		%arg1(%sr2, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fdsync	/* Predict branch taken */
+
+fdoneloop2:
+	addib,COND(>)	-1, %arg2, fdoneloop2	/* Outer loop count decr */
+	fdce,m		%arg1(%sr2, %arg0)	/* Fdce for one loop */
 
 fdsync:
 	syncdma
@@ -277,7 +327,104 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+/* Macros to serialize TLB purge operations on SMP.  */
+
+	.macro	tlb_lock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock,%r1
+	ldo		R%pa_tlb_lock(%r1),\la
+	rsm		PSW_SM_I,\flags
+1:	LDCW		0(\la),\tmp
+	cmpib,<>,n	0,\tmp,3f
+2:	ldw		0(\la),\tmp
+	cmpb,<>		%r0,\tmp,1b
+	nop
+	b,n		2b
+3:
+#endif
+	.endm
+
+	.macro	tlb_unlock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldi		1,\tmp
+	stw		\tmp,0(\la)
+	mtsm		\flags
+#endif
+	.endm
+
+/* Clear page using kernel mapping.  */
+
+ENTRY(clear_page_asm)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+#ifdef CONFIG_64BIT
+
+	/* Unroll the loop.  */
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:
+	std		%r0, 0(%r26)
+	std		%r0, 8(%r26)
+	std		%r0, 16(%r26)
+	std		%r0, 24(%r26)
+	std		%r0, 32(%r26)
+	std		%r0, 40(%r26)
+	std		%r0, 48(%r26)
+	std		%r0, 56(%r26)
+	std		%r0, 64(%r26)
+	std		%r0, 72(%r26)
+	std		%r0, 80(%r26)
+	std		%r0, 88(%r26)
+	std		%r0, 96(%r26)
+	std		%r0, 104(%r26)
+	std		%r0, 112(%r26)
+	std		%r0, 120(%r26)
+
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
+
+#else
+
+	/*
+	 * Note that until (if) we start saving the full 64-bit register
+	 * values on interrupt, we can't use std on a 32 bit kernel.
+	 */
+	ldi		(PAGE_SIZE / 64), %r1
+
+1:
+	stw		%r0, 0(%r26)
+	stw		%r0, 4(%r26)
+	stw		%r0, 8(%r26)
+	stw		%r0, 12(%r26)
+	stw		%r0, 16(%r26)
+	stw		%r0, 20(%r26)
+	stw		%r0, 24(%r26)
+	stw		%r0, 28(%r26)
+	stw		%r0, 32(%r26)
+	stw		%r0, 36(%r26)
+	stw		%r0, 40(%r26)
+	stw		%r0, 44(%r26)
+	stw		%r0, 48(%r26)
+	stw		%r0, 52(%r26)
+	stw		%r0, 56(%r26)
+	stw		%r0, 60(%r26)
+
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		64(%r26), %r26
+#endif
+	bv		%r0(%r2)
+	nop
+	.exit
+
+	.procend
+ENDPROC(clear_page_asm)
+
+/* Copy page using kernel mapping.  */
+
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -285,18 +432,14 @@ ENTRY(copy_user_page_asm)
 #ifdef CONFIG_64BIT
 	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
 	 * Unroll the loop by hand and arrange insn appropriately.
-	 * GCC probably can do this just as well.
+	 * Prefetch doesn't improve performance on rp3440.
+	 * GCC probably can do this just as well...
 	 */
 
-	ldd		0(%r25), %r19
 	ldi		(PAGE_SIZE / 128), %r1
 
-	ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
-	ldw		128(%r25), %r0		/* prefetch 2 */
-
-1:	ldd		8(%r25), %r20
-	ldw		192(%r25), %r0		/* prefetch 3 */
-	ldw		256(%r25), %r0		/* prefetch 4 */
+1:	ldd		0(%r25), %r19
+	ldd		8(%r25), %r20
 
 	ldd		16(%r25), %r21
 	ldd		24(%r25), %r22
@@ -330,20 +473,16 @@ ENTRY(copy_user_page_asm)
 
 	ldd		112(%r25), %r21
 	ldd		120(%r25), %r22
+	ldo		128(%r25), %r25
 	std		%r19, 96(%r26)
 	std		%r20, 104(%r26)
 
-	ldo		128(%r25), %r25
 	std		%r21, 112(%r26)
 	std		%r22, 120(%r26)
-	ldo		128(%r26), %r26
 
-	/* conditional branches nullify on forward taken branch, and on
-	 * non-taken backward branch. Note that .+4 is a backwards branch.
-	 * The ldd should only get executed if the branch is taken.
-	 */
-	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
-	ldd		0(%r25), %r19		/* start next loads */
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
 
 #else
 
@@ -399,7 +538,7 @@ ENTRY(copy_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,8 +561,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
-
 	/*
 	 * We can't do this since copy_user_page is used to bring in
 	 * file data that might have instructions. Since the data would
@@ -435,6 +572,7 @@ ENDPROC(copy_user_page_asm)
 	 * use it if more information is passed into copy_user_page().
 	 * Have to do some measurements to see if it is worthwhile to
 	 * lobby for such a change.
+	 *
 	 */
 
 ENTRY(copy_user_page_asm)
@@ -442,16 +580,21 @@ ENTRY(copy_user_page_asm)
 	.callinfo NO_CALLS
 	.entry
 
+	/* Convert virtual `to' and `from' addresses to physical addresses.
+	   Move `from' physical address to non shadowed register.  */
 	ldil		L%(__PAGE_OFFSET), %r1
 	sub		%r26, %r1, %r26
-	sub		%r25, %r1, %r23		/* move physical addr into non shadowed reg */
+	sub		%r25, %r1, %r23
 
 	ldil		L%(TMPALIAS_MAP_START), %r28
 	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
-	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+#endif
+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
+	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
@@ -466,10 +609,76 @@ ENTRY(copy_user_page_asm)
 
 	/* Purge any old translations */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+	pdtlb,l		0(%r29)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
-	ldi		64, %r1
+#ifdef CONFIG_64BIT
+	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
+	 * Unroll the loop by hand and arrange insn appropriately.
+	 * GCC probably can do this just as well.
+	 */
+
+	ldd		0(%r29), %r19
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:	ldd		8(%r29), %r20
+
+	ldd		16(%r29), %r21
+	ldd		24(%r29), %r22
+	std		%r19, 0(%r28)
+	std		%r20, 8(%r28)
+
+	ldd		32(%r29), %r19
+	ldd		40(%r29), %r20
+	std		%r21, 16(%r28)
+	std		%r22, 24(%r28)
+
+	ldd		48(%r29), %r21
+	ldd		56(%r29), %r22
+	std		%r19, 32(%r28)
+	std		%r20, 40(%r28)
+
+	ldd		64(%r29), %r19
+	ldd		72(%r29), %r20
+	std		%r21, 48(%r28)
+	std		%r22, 56(%r28)
+
+	ldd		80(%r29), %r21
+	ldd		88(%r29), %r22
+	std		%r19, 64(%r28)
+	std		%r20, 72(%r28)
+
+	ldd		 96(%r29), %r19
+	ldd		104(%r29), %r20
+	std		%r21, 80(%r28)
+	std		%r22, 88(%r28)
+
+	ldd		112(%r29), %r21
+	ldd		120(%r29), %r22
+	std		%r19, 96(%r28)
+	std		%r20, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r21, 112(%r28)
+	std		%r22, 120(%r28)
+	ldo		128(%r28), %r28
+
+	/* conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 * The ldd should only get executed if the branch is taken.
+	 */
+	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
+	ldd		0(%r29), %r19		/* start next loads */
+
+#else
+	ldi		(PAGE_SIZE / 64), %r1
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,9 +689,7 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
+1:	ldw		0(%r29), %r19
 	ldw		4(%r29), %r20
 	ldw		8(%r29), %r21
 	ldw		12(%r29), %r22
@@ -515,8 +722,10 @@ ENTRY(copy_user_page_asm)
 	stw		%r21, 56(%r28)
 	stw		%r22, 60(%r28)
 	ldo		64(%r28), %r28
+
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
+#endif
 
 	bv		%r0(%r2)
 	nop
@@ -524,9 +733,8 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -550,7 +758,13 @@ ENTRY(__clear_user_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
@@ -580,8 +794,7 @@ ENTRY(__clear_user_page_asm)
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
-	stw		%r0, 0(%r28)
+1:	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
 	stw		%r0, 12(%r28)
@@ -606,7 +819,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_dcache_page_asm)
 	.proc
@@ -630,7 +843,13 @@ ENTRY(flush_dcache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), %r1
@@ -663,8 +882,17 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		%r1(%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pdtlb		(%r25)
+	nop
 	.exit
 
 	.procend
@@ -692,7 +920,13 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pitlb,l		%r0(%sr0,%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pitlb		(%sr0,%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -725,8 +959,17 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r1(%r28)
 
 	sync
-	bv		%r0(%r2)
+
+#ifdef CONFIG_PA20
+	pitlb,l		%r0(%sr0,%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pitlb		(%sr0,%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
+	bv		%r0(%r2)
+	nop
 	.exit
 
 	.procend
@@ -775,7 +1018,7 @@ ENTRY(flush_kernel_dcache_page_asm)
 	.procend
 ENDPROC(flush_kernel_dcache_page_asm)
 
-ENTRY(purge_kernel_dcache_page)
+ENTRY(purge_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -815,7 +1058,7 @@ ENTRY(purge_kernel_dcache_page)
 	.exit
 
 	.procend
-ENDPROC(purge_kernel_dcache_page)
+ENDPROC(purge_kernel_dcache_page_asm)
 
 ENTRY(flush_user_dcache_range_asm)
 	.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index a7bb757..25835d8 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -158,5 +158,6 @@ extern void _mcount(void);
 EXPORT_SYMBOL(_mcount);
 #endif
 
-/* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+/* from pacache.S -- needed for clear/copy_page */
+EXPORT_SYMBOL(clear_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 12c1ed3..5dd1059 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -314,7 +314,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #if DEBUG_SIG
 	/* Assert that we're flushing in the correct space... */
 	{
-		int sid;
+		unsigned long sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
 		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
 		       sid, frame->tramp);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..f0cb56e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 

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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] PARISC: Avoid undefined shift in cnv_float.h
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The attached change fixes a float conversion problem found running the
GCC testsuite with GCC configured with --with-arch=2.0.

Signed-off-by: John David Anglin <dave.anglin@bell.net>



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diff --git a/arch/parisc/math-emu/cnv_float.h b/arch/parisc/math-emu/cnv_float.h
index 9071e09..37299c7 100644
--- a/arch/parisc/math-emu/cnv_float.h
+++ b/arch/parisc/math-emu/cnv_float.h
@@ -347,16 +347,15 @@
     Sgl_isinexact_to_fix(sgl_value,exponent)
 
 #define Duint_from_sgl_mantissa(sgl_value,exponent,dresultA,dresultB)	\
-  {Sall(sgl_value) <<= SGL_EXP_LENGTH;  /*  left-justify  */		\
+  {unsigned int val = Sall(sgl_value) << SGL_EXP_LENGTH;		\
     if (exponent <= 31) {						\
     	Dintp1(dresultA) = 0;						\
-    	Dintp2(dresultB) = (unsigned)Sall(sgl_value) >> (31 - exponent); \
+    	Dintp2(dresultB) = val >> (31 - exponent);			\
     }									\
     else {								\
-    	Dintp1(dresultA) = Sall(sgl_value) >> (63 - exponent);		\
-    	Dintp2(dresultB) = Sall(sgl_value) << (exponent - 31);		\
+    	Dintp1(dresultA) = val >> (63 - exponent);			\
+    	Dintp2(dresultB) = exponent <= 62 ? val << (exponent - 31) : 0;	\
     }									\
-    Sall(sgl_value) >>= SGL_EXP_LENGTH;  /* return to original */	\
   }
 
 #define Duint_setzero(dresultA,dresultB) 	\

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Subject: Re: [PATCH] PARISC: Avoid undefined shift in cnv_float.h
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On Sun, 2012-04-01 at 12:57 -0400, John David Anglin wrote:
> The attached change fixes a float conversion problem found running the
> GCC testsuite with GCC configured with --with-arch=2.0.

Could you describe the actual problem? (it helps enormously when people
look at the change logs a year later and try and work out what the
actual issue is).

Thanks,

James


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Subject: Re: [PATCH] PARISC: Avoid undefined shift in cnv_float.h
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On 1-Apr-12, at 1:06 PM, James Bottomley wrote:

> On Sun, 2012-04-01 at 12:57 -0400, John David Anglin wrote:
>> The attached change fixes a float conversion problem found running  
>> the
>> GCC testsuite with GCC configured with --with-arch=2.0.
>
> Could you describe the actual problem? (it helps enormously when  
> people
> look at the change logs a year later and try and work out what the
> actual issue is).


The actual problem occurs for an exponent value of 63.  This is the  
maximum
exponent value that can be passed.  This causes a left shift by 32 in  
the else
hunk of the macro.  This causes undefined behavior and the wrong value  
is
returned for dresultB.  The fix is the check "exponent <= 62".  If the  
exponent
is 63, dresultB is set to 0.

The patch also optimizes the operation a bit by copying
"Sall(sgl_value) << SGL_EXP_LENGTH" to val, so that sgl_value is not  
modified.

Dave
--
John David Anglin	dave.anglin@bell.net



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Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On Sat, 31 Mar 2012, Russell King - ARM Linux wrote:

> On Sun, Apr 01, 2012 at 12:33:21AM +0800, Paul E. McKenney wrote:
> > Although there have been numerous complaints about the complexity of
> > parallel programming (especially over the past 5-10 years), the plain
> > truth is that the incremental complexity of parallel programming over
> > that of sequential programming is not as large as is commonly believed.
> > Despite that you might have heard, the mind-numbing complexity of modern
> > computer systems is not due so much to there being multiple CPUs, but
> > rather to there being any CPUs at all.  In short, for the ultimate in
> > computer-system simplicity, the optimal choice is NR_CPUS=0.
> > 
> > This commit therefore limits kernel builds to zero CPUs.  This change
> > has the beneficial side effect of rendering all kernel bugs harmless.
> > Furthermore, this commit enables additional beneficial changes, for
> > example, the removal of those parts of the kernel that are not needed
> > when there are zero CPUs.
> > 
> > Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> > Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
> 
> Great work, but I don't think you've gone far enough with this.
> 
> What would really help is if you could consolidate all these NR_CPUS
> definitions into one place so we don't have essentially the same thing
> scattered across all these architectures.  We're already doing this on
> ARM across our platforms, and its about time such an approach was taken
> across the entire kernel tree.
> 
> It looks like the MIPS solution would be the best one to pick.
> Could you rework your patch to do this please?
> 
> While you're at it, you might like to consider that having zero CPUs
> makes all this architecture support redundant, so maybe you've missed
> a trick there - according to my count, we could get rid of almost 3
> million lines of code from arch.  We could replace all that with a
> single standard implementation.

For a first step we can deprecated arch/ and make it depend on
CONFIG_STAGING. That way we can have it around a bit for sentimental
reasons w/o having a lot of churn.

Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Index: tip/Makefile
===================================================================
--- tip.orig/Makefile
+++ tip/Makefile
@@ -564,7 +564,9 @@ else
 KBUILD_CFLAGS	+= -O2
 endif
 
+ifdef CONFIG_ARCH_SUPPORT
 include $(srctree)/arch/$(SRCARCH)/Makefile
+endif
 
 ifneq ($(CONFIG_FRAME_WARN),0)
 KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
Index: tip/drivers/staging/Kconfig
===================================================================
--- tip.orig/drivers/staging/Kconfig
+++ tip/drivers/staging/Kconfig
@@ -1,6 +1,10 @@
+config ARCH_SUPPORT
+	bool
+
 menuconfig STAGING
 	bool "Staging drivers"
 	default n
+	select ARCH_SUPPORT
 	---help---
 	  This option allows you to select a number of drivers that are
 	  not of the "normal" Linux kernel quality level.  These drivers
Index: tip/Documentation/feature-removal-schedule.txt
===================================================================
--- tip.orig/Documentation/feature-removal-schedule.txt
+++ tip/Documentation/feature-removal-schedule.txt
@@ -537,3 +537,13 @@ When:	3.6
 Why:	setitimer is not returning -EFAULT if user pointer is NULL. This
 	violates the spec.
 Who:	Sasikantha Babu <sasikanth.v19@gmail.com>
+
+-----------------------------
+
+What:	Remove arch
+When:	April 1st 2013
+Why:    NR_CPUS=0 made arch/ obsolete. Keep it around a bit for
+	sentimental reasons.
+Who:	paulmck,tglx.rmk
+
+	
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From - Thu Nov 08 21:08:05 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state space
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On Sun, Apr 01, 2012 at 12:04:48PM +0200, Borislav Petkov wrote:
> On Sun, Apr 01, 2012 at 12:33:21AM +0800, Paul E. McKenney wrote:
> > Although there have been numerous complaints about the complexity of
> > parallel programming (especially over the past 5-10 years), the plain
> > truth is that the incremental complexity of parallel programming over
> > that of sequential programming is not as large as is commonly believed.
> > Despite that you might have heard, the mind-numbing complexity of modern
> > computer systems is not due so much to there being multiple CPUs, but
> > rather to there being any CPUs at all.  In short, for the ultimate in
> > computer-system simplicity, the optimal choice is NR_CPUS=0.
> > 
> > This commit therefore limits kernel builds to zero CPUs.  This change
> > has the beneficial side effect of rendering all kernel bugs harmless.
> > Furthermore, this commit enables additional beneficial changes, for
> > example, the removal of those parts of the kernel that are not needed
> > when there are zero CPUs.
> > 
> > Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> > Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
> 
> Looks good, thanks for doing that.
> 
> Btw, I just got confirmation from hw folk that we can actually give you
> hardware support for that code with an upcoming CPU which has NR_CPUS=0
> cores.
> 
> Oh, and additionally, we can disable some of those so getting into the
> negative is also doable from the hw perspective, so feel free to explore
> that side of the problem too.
> 
> ACK.

Cute!  ;-)

							Thanx, Paul


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Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH RFC] Simplify the Linux kernel by reducing its state space
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To: Thomas Gleixner <tglx@linutronix.de>
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On Sun, Apr 01, 2012 at 07:34:55PM +0200, Thomas Gleixner wrote:
> On Sat, 31 Mar 2012, Russell King - ARM Linux wrote:
> 
> > On Sun, Apr 01, 2012 at 12:33:21AM +0800, Paul E. McKenney wrote:
> > > Although there have been numerous complaints about the complexity of
> > > parallel programming (especially over the past 5-10 years), the plain
> > > truth is that the incremental complexity of parallel programming over
> > > that of sequential programming is not as large as is commonly believed.
> > > Despite that you might have heard, the mind-numbing complexity of modern
> > > computer systems is not due so much to there being multiple CPUs, but
> > > rather to there being any CPUs at all.  In short, for the ultimate in
> > > computer-system simplicity, the optimal choice is NR_CPUS=0.
> > > 
> > > This commit therefore limits kernel builds to zero CPUs.  This change
> > > has the beneficial side effect of rendering all kernel bugs harmless.
> > > Furthermore, this commit enables additional beneficial changes, for
> > > example, the removal of those parts of the kernel that are not needed
> > > when there are zero CPUs.
> > > 
> > > Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> > > Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
> > 
> > Great work, but I don't think you've gone far enough with this.
> > 
> > What would really help is if you could consolidate all these NR_CPUS
> > definitions into one place so we don't have essentially the same thing
> > scattered across all these architectures.  We're already doing this on
> > ARM across our platforms, and its about time such an approach was taken
> > across the entire kernel tree.
> > 
> > It looks like the MIPS solution would be the best one to pick.
> > Could you rework your patch to do this please?
> > 
> > While you're at it, you might like to consider that having zero CPUs
> > makes all this architecture support redundant, so maybe you've missed
> > a trick there - according to my count, we could get rid of almost 3
> > million lines of code from arch.  We could replace all that with a
> > single standard implementation.
> 
> For a first step we can deprecated arch/ and make it depend on
> CONFIG_STAGING. That way we can have it around a bit for sentimental
> reasons w/o having a lot of churn.
> 
> Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

;-) ;-) ;-)

Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

							Thanx, Paul

> Index: tip/Makefile
> ===================================================================
> --- tip.orig/Makefile
> +++ tip/Makefile
> @@ -564,7 +564,9 @@ else
>  KBUILD_CFLAGS	+= -O2
>  endif
> 
> +ifdef CONFIG_ARCH_SUPPORT
>  include $(srctree)/arch/$(SRCARCH)/Makefile
> +endif
> 
>  ifneq ($(CONFIG_FRAME_WARN),0)
>  KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
> Index: tip/drivers/staging/Kconfig
> ===================================================================
> --- tip.orig/drivers/staging/Kconfig
> +++ tip/drivers/staging/Kconfig
> @@ -1,6 +1,10 @@
> +config ARCH_SUPPORT
> +	bool
> +
>  menuconfig STAGING
>  	bool "Staging drivers"
>  	default n
> +	select ARCH_SUPPORT
>  	---help---
>  	  This option allows you to select a number of drivers that are
>  	  not of the "normal" Linux kernel quality level.  These drivers
> Index: tip/Documentation/feature-removal-schedule.txt
> ===================================================================
> --- tip.orig/Documentation/feature-removal-schedule.txt
> +++ tip/Documentation/feature-removal-schedule.txt
> @@ -537,3 +537,13 @@ When:	3.6
>  Why:	setitimer is not returning -EFAULT if user pointer is NULL. This
>  	violates the spec.
>  Who:	Sasikantha Babu <sasikanth.v19@gmail.com>
> +
> +-----------------------------
> +
> +What:	Remove arch
> +When:	April 1st 2013
> +Why:    NR_CPUS=0 made arch/ obsolete. Keep it around a bit for
> +	sentimental reasons.
> +Who:	paulmck,tglx.rmk
> +
> +	
> 

From - Thu Nov 08 21:08:05 2018
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From: Chris Metcalf <cmetcalf@tilera.com>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH 4/4] tile/CPU hotplug: Add missing call to notify_cpu_starting()
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Cc: <rkuo@codeaurora.org>, <tglx@linutronix.de>,
	<linas@codeaurora.org>, <mingo@elte.hu>, <a.p.zijlstra@chello.nl>,
	<dhowells@redhat.com>, <yasutake.koichi@jp.panasonic.com>,
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To: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
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On 3/22/2012 7:29 AM, Srivatsa S. Bhat wrote:
> The scheduler depends on receiving the CPU_STARTING notification, without
> which we end up into a lot of trouble. So add the missing call to
> notify_cpu_starting() in the bringup code.
>
> Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
> ---
>
>  arch/tile/kernel/smpboot.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)

Thanks!  Taken into the tile tree.

-- 
Chris Metcalf, Tilera Corp.
http://www.tilera.com


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On Thu, Mar 22, 2012 at 04:58:25PM +0530, Srivatsa S. Bhat wrote:
> The scheduler depends on receiving the CPU_STARTING notification, without
> which we end up into a lot of trouble. So add the missing call to
> notify_cpu_starting() in the bringup code.
> 
> Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
> ---
> 
>  arch/hexagon/kernel/smp.c |    5 +++++
>  1 files changed, 5 insertions(+), 0 deletions(-)
> 

Tested in my tree; thanks!


Acked-by: Richard Kuo <rkuo@codeaurora.org>


-- 

Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

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Hi,

Did anyone get a chance to review this patch ?

This is v2 of this patch set now.
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From: Kyle McMartin <kyle@mcmartin.ca>
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Cc: linux-arch@vger.kernel.org, Oleg Nesterov <oleg@redhat.com>,
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On Tue, Feb 14, 2012 at 11:40:58AM +0000, Matt Fleming wrote:
> From: Matt Fleming <matt.fleming@intel.com>
> 
> As described in e6fa16ab ("signal: sigprocmask() should do
> retarget_shared_pending()") the modification of current->blocked is
> incorrect as we need to check whether the signal we're about to block
> is pending in the shared queue.
> 
> Also, use the new helper function introduced in commit 5e6292c0f28f
> ("signal: add block_sigmask() for adding sigmask to current->blocked")
> which centralises the code for updating current->blocked after
> successfully delivering a signal and reduces the amount of duplicate
> code across architectures. In the past some architectures got this
> code wrong, so using this helper function should stop that from
> happening again.
> 
> Cc: Oleg Nesterov <oleg@redhat.com>
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: Helge Deller <deller@gmx.de>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: linux-parisc@vger.kernel.org
> Signed-off-by: Matt Fleming <matt.fleming@intel.com>

Nice cleanups Matt!

Acked-by: Kyle McMartin <kyle@mcmartin.ca>

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On 25-Nov-11, at 10:18 PM, James Bottomley wrote:

> On Thu, 2011-11-24 at 08:16 -0500, John David Anglin wrote:
>> As GCC has gotten larger with time, I started seeing hangs in the
>> stage1 compilers when they are compiled
>> with no optimization.  This first was seen with gnat1.  I now see it
>> with cc1 and cc1plus.
>>
>> The hangs always occur at the same place (ldw,s instruction) in the
>> GCC casesi insn pattern:
>>
>> (gdb) disass $pc-16,$pc+16
>> Dump of assembler code from 0x45fbec4 to 0x45fbee4:
>> 0x045fbec4 <cpp_spell_token+68>:	ldw 0(ret0),ret0
>> 0x045fbec8 <cpp_spell_token+72>:	cmpib,<<,n 3,ret0,0x45fc168
>> <cpp_spell_token+744>
>> 0x045fbecc <cpp_spell_token+76>:	ldil L%45fb800,r19
>> 0x045fbed0 <cpp_spell_token+80>:	ldo 6dc(r19),r19
>> => 0x045fbed4 <cpp_spell_token+84>:	ldw,s ret0(r19),r19
>> 0x045fbed8 <cpp_spell_token+88>:	bv,n r0(r19)
>> 0x045fbedc <cpp_spell_token+92>:	# 45fbeec
>> 0x045fbee0 <cpp_spell_token+96>:	# 45fbfc8
>>
>> What is interesting about this instruction is that it usually  
>> involves
>> an I and D access to the same page.
>
>> strace shows nothing for process.  gdb can't single step from the
>> instruction.  A break at the next
>> instruction is never hit.
>>
>> I see the following with sysrq-trigger:
>>
>> cc1plus R running task 0 16932 16931 0x00000010
>> Backtrace:
>> timer_interrupt(CPU 1): delayed! cycles 77ED56D2 rem BD46F next/now
>> 411D1E1AE13C/411D1E0F0CCD
>>
>> Note the delayed timer interrupt "always" seems to occur.  Also, see
>> that the program isn't running kernel
>> code.
>>
>> So, my theory is there is a bug in the TLB miss handling.  Somehow a
>> data miss ejects the instruction entry,
>> and we get into a loop inserting I and D TLB entries.  Sometimes the
>> machine gets out of the loop but it takes
>> hours.
>
> I'm still a bit Jetlagged from a customer trip to Germany, but this
> looks entirely possible: Appendix F says that a later TLB insertion
> purges an earlier one, so I'd say in a combined I/D TLB inserting
> consecutive I and D entries purges the I.
>
> It looks like a fix might be to insert TLB entries supporting both  
> data
> and instruction access in the combined TLB case.


I'm still seeing this.  I have the strong feeling that this depends in  
some
way on the size of the mapping.  I only see this with cc1 and cc1plus
when they are compiled in stage1 without optimization.  It doesn't
occur when they are are compiled with -O1.  There is a huge difference
between the size of the application maps.  For example, the executable
maps for cc1plus are 81540 kB and 12722 kB at -O0 and -O1, respectively.

The assembly code sequence is common to every "switch" statement.
Yet, the hang always occurs at exactly the same point.

I agree with your comment about the replacement, but as far as I can
tell, there is no difference in how we build the entries for data and
instruction access.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.comp.lib.glibc.ports,gmane.linux.ports.parisc
Subject: hppa: glibc and gcc 4.6, "error: _rtld_global_ro causes a section type conflict"
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Dave,

When compiling glibc on magnum with gcc-4.6 I get an odd failure about
section type conflicts.

The following is the reduced test case:

carlos@magnum:~/build/glibc$ gcc -v
Using built-in specs.
COLLECT_GCC=3Dgcc
COLLECT_LTO_WRAPPER=3D/usr/lib/gcc/hppa-linux-gnu/4.6/lto-wrapper
Target: hppa-linux-gnu
Configured with: ../src/configure -v --with-pkgversion=3D'Debian
4.6.3-1' --with-bugurl=3Dfile:///usr/share/doc/gcc-4.6/README.Bugs
--enable-languages=3Dc,c++,fortran,objc,obj-c++ --prefix=3D/usr
--program-suffix=3D-4.6 --enable-shared --enable-linker-build-id
--with-system-zlib --libexecdir=3D/usr/lib --without-included-gettext
--enable-threads=3Dposix --with-gxx-include-dir=3D/usr/include/c++/4.6
--libdir=3D/usr/lib --enable-nls --with-sysroot=3D/ --enable-clocale=3Dgnu
--enable-libstdcxx-debug --enable-libstdcxx-time=3Dyes --disable-libssp
--enable-plugin --enable-objc-gc --disable-libstdcxx-pch
--enable-checking=3Drelease --build=3Dhppa-linux-gnu --host=3Dhppa-linux-gnu
--target=3Dhppa-linux-gnu
Thread model: posix
gcc version 4.6.3 (Debian 4.6.3-1)

carlos@magnum:~/src/glibc/elf$ hppa-linux-gnu-gcc rtld.i -c -std=3Dgnu99
-fgnu89-inline -O2 -U_FORTIFY_SOURCE -Wall -Winline -Wwrite-strings
-fmerge-all-constants -fno-stack-protector -g -Wstrict-prototypes
-fPIC -mdisable-fpregs
rtld.c: In function =E2dl_main=E2:
rtld.c:937:3: warning: implicit declaration of function
=E2__canonicalize_funcptr_for_compare=E2 [-Wimplicit-function-declaration]
rtld.c: At top level:
rtld.c:150:23: error: _rtld_global_ro causes a section type conflict
carlos@magnum:~/src/glibc/elf$

Attached is the original unreduced file as rtld.tar.bz2 (modified
slightly to work standalone because glibc uses `-include' on the
command line).

Attached is the multi-delta reduced file as rtld-reduced.i.

Have you seen this before with gcc 4.6?

I'll be poking at this later, but I thought you might have seen this
so I'm posting to the list.

I know that Gentoo/hppa has already seen this issue, but not posted a solut=
ion.
https://bugs.gentoo.org/show_bug.cgi?id=3D405161

Comments?

Cheers,
Carlos.

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--e89a8ff1c3fcba677204bdb8f542--


From - Thu Nov 08 21:08:06 2018
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X-Mozilla-Keys:                                                                                 
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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Boot failure with 32bit kernel
Date: Thu, 19 Apr 2012 10:26:08 +0200
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--MP_/VXS4p+1wRZqOPyUqkJVPNyZ
Content-Type: text/plain; charset=US-ASCII
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Hi all,

I compiled a kernel with a few additional features and I was unable to
boot it. It seems that if the entry point is not 0x00100000 in vmlinux,
the boot process fails right after "Total Memory: 2048 MB".
This is the only common denominator I could find.

I've been able to reproduce this with :
 - C3600 and J5600
 - kernel 3.2.12 and 3.3.1
 - gcc 4.5.3
 - ld 2.21 and 2.22
 - palo 1.17 and 1.18


I've attached the boot output of a working and 2 broken kernels. I've
also attached a non working kconfig. To have this one, I started
from a working config and then I've added XFS as I know it's a big
chunk of code and was likely to increase the resulting binary size.

With 3.2.12, I had a working kernel until I tried
CONFIG_CC_OPTIMIZE_FOR_SIZE=y. When I did this, the resulting kernel
was slightly smaller but the entry point was further than 0x00100000.


The 10 first lines of System.map from the working 3.3.1 kernel :
10100000 T _stext
10100000 A _text
10100000 T stext
10100020 t $bss_loop
10100088 t $pgt_fill_loop
10100100 t $is_pa20
10100108 t $install_iva
10100180 t aligned_rfi
10100200 T flush_tlb_all_local
1010024c t .L11

The same from the non working 3.3.1 one :
10100000 A _text
10100100 T _stext
10100100 T stext
10100120 t $bss_loop
10100188 t $pgt_fill_loop
10100200 t $is_pa20
10100208 t $install_iva
10100280 t aligned_rfi
10100300 T flush_tlb_all_local
1010034c t .L11

I've also taken the only sparc I had out of the room but it didn't
help :)

Is this a known issue ?

Let me know if you need more details.

Thanks,
  Guy
--MP_/VXS4p+1wRZqOPyUqkJVPNyZ
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment; filename=working-output.txt

HARD Booted.
palo ipl 1.17 root@hope Sun Nov 21 23:43:13 CET 2010

Partition Start(MB) End(MB) Id Type
1               1      39   f0 Palo
2              40      78   83 ext2
3              79   16300   83 ext2
4           16301   17359   82 swap

PALO(F0) partition contains:

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).Current co=
mmand line:
2/vmlinux root=3D/dev/sda3 video=3Dmatroxfb:mem:2M,noaccel,init panic=3D5 c=
onsole=3DttyS0
 0: 2/vmlinux
 1: root=3D/dev/sda3
 2: video=3Dmatroxfb:mem:2M,noaccel,init
 3: panic=3D5
 4: console=3DttyS0

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? 0
2/vmlinux.test
Current command line:
2/vmlinux.test root=3D/dev/sda3 video=3Dmatroxfb:mem:2M,noaccel,init panic=
=3D5 console=3DttyS0
 0: 2/vmlinux.test
 1: root=3D/dev/sda3
 2: video=3Dmatroxfb:mem:2M,noaccel,init
 3: panic=3D5
 4: console=3DttyS0

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? b

Command line for kernel: 'root=3D/dev/sda3 video=3Dmatroxfb:mem:2M,noaccel,=
init panic=3D5 console=3DttyS0 palo_kernel=3D2/vmlinux.test'
Selected kernel: /vmlinux.test from partition 2
ELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4915200 mediaptr 0x1000
Segment 1 load 005ec000 size 126000 mediaptr 0x4b1000
Segment 2 load 0060b000 size 109532 mediaptr 0x4d0000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 3.2.12 (root@hope) (gcc version 4.5.3 (Gentoo 4.5.3-r2 p1.1, =
pie-0.4.7) ) #3 Tue Apr 17 19:17:18 CEST 2012
unwind_init: start =3D 0x10517000, end =3D 0x1054fdc0, entries =3D 14556
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005cf0 00000481 00000000 00000002 77b310ff 100000f0 00000008 000000=
b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x3
model 9000/785/C3600
Total Memory: 2048 MB
LCD display at f05d0008,f05d0000 registered
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 520192
Kernel command line: root=3D/dev/sda3 video=3Dmatroxfb:mem:2M,noaccel,init =
panic=3D5 console=3DttyS0 palo_kernel=3D2/vmlinux.test
PID hash table entries: 4096 (order: 2, 16384 bytes)
Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 131072 (order: 7, 524288 bytes)
Memory: 2071756k/2097152k available (3236k kernel code, 25396k reserved, 15=
42k data, 232k init)
virtual kernel memory layout:
    vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
    memory  : 0x10000000 - 0x90000000   (2048 MB)
      .init : 0x105ec000 - 0x10626000   ( 232 kB)
      .data : 0x10429024 - 0x105aa8b0   (1542 kB)
      .text : 0x10100000 - 0x10429024   (3236 kB)
SLUB: Genslabs=3D11, HWalign=3D64, Order=3D0-3, MinObjects=3D0, CPUs=3D1, N=
odes=3D1
NR_IRQS:96
Console: colour dummy device 160x64
Calibrating delay loop... 1099.77 BogoMIPS (lpj=3D2199552)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:


--MP_/VXS4p+1wRZqOPyUqkJVPNyZ
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Content-Transfer-Encoding: quoted-printable
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HARD Booted.
palo ipl 1.17 root@hope Sun Nov 21 23:43:13 CET 2010

Partition Start(MB) End(MB) Id Type
1               1      39   f0 Palo
2              40      78   83 ext2
3              79   16300   83 ext2
4           16301   17359   82 swap

PALO(F0) partition contains:

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).Current co=
mmand line:
2/vmlinux root=3D/dev/sda3 video=3Dmatroxfb:mem:2M,noaccel,init panic=3D5 c=
onsole=3DttyS0
 0: 2/vmlinux
 1: root=3D/dev/sda3
 2: video=3Dmatroxfb:mem:2M,noaccel,init
 3: panic=3D5
 4: console=3DttyS0

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? 0
2/vmlinux.test
Current command line:
2/vmlinux.test root=3D/dev/sda3 video=3Dmatroxfb:mem:2M,noaccel,init panic=
=3D5 console=3DttyS0
 0: 2/vmlinux.test
 1: root=3D/dev/sda3
 2: video=3Dmatroxfb:mem:2M,noaccel,init
 3: panic=3D5
 4: console=3DttyS0

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? b

Command line for kernel: 'root=3D/dev/sda3 video=3Dmatroxfb:mem:2M,noaccel,=
init panic=3D5 console=3DttyS0 palo_kernel=3D2/vmlinux.test'
Selected kernel: /vmlinux.test from partition 2
ELF32 executable
Entry 00100080 first 00100000 n 3
Segment 0 load 00100000 size 4702208 mediaptr 0x1000
Segment 1 load 005b8000 size 124364 mediaptr 0x47d000
Segment 2 load 005d7000 size 109520 mediaptr 0x49c000
Branching to kernel entry point 0x00100080.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 3.2.12 (root@hope) (gcc version 4.5.3 (Gentoo 4.5.3-r2 p1.1, =
pie-0.4.7) ) #4 Tue Apr 17 14:54:36 CEST 2012
unwind_init: start =3D 0x104e1000, end =3D 0x1051a960, entries =3D 14742
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005cf0 00000481 00000000 00000002 77b310ff 100000f0 00000008 000000=
b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x3
model 9000/785/C3600
Total Memory: 2048 MB
      _______________________________=20
     < Your System ate a SPARC! Gah! >
      -------------------------------=20
             \   ^__^
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
swapper (pid 0): Protection id trap (code 7)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110 Not tainted
r00-03  0004ff0e 1059a000 10112cb4 00000000
r04-07  00000001 105201cc 10524000 1052e178
r08-11  1052e194 10524020 00000000 00100000
r12-15  00080000 00000000 005f1fff 1055a33c
r16-19  1059a000 00080000 10524000 00007155
r20-23  00000000 10716000 00000000 00000001
r24-27  00000000 00000000 00000000 10524000
r28-31  00000000 03a37905 105202c0 00000000
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10100484 10100488
 IIR: 43ffff40    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 10520000 CR31: 11111111
 ORIG_R28: 00000000
 IAOQ[0]: flush_instruction_cache_local+0x0/0x28
 IAOQ[1]: flush_instruction_cache_local+0x4/0x28
 RP(r2): flush_cache_all_local+0x10/0x24
Backtrace:
 [<10112cb4>] flush_cache_all_local+0x10/0x24
 [<105baee4>] paging_init+0x78c/0x830
 [<105bb4b0>] setup_arch+0x5c/0x80
 [<105b86bc>] start_kernel+0x80/0x374
 [<10113464>] start_parisc+0x4c/0x68

Backtrace:
 [<10113b94>] die_if_kernel+0x138/0x1b0
 [<10114320>] handle_interruption+0x48c/0x63c
 [<10104078>] intr_check_sig+0x0/0x34
 [<10118b9c>] pdc_console_write+0x30/0x58
 [<10100488>] flush_instruction_cache_local+0x4/0x28

---[ end trace 139ce121c98e96c9 ]---
Kernel panic - not syncing: Attempted to kill the idle task!
Backtrace:
 [<1010ebd0>] panic+0x94/0x268
 [<10131dd0>] do_exit+0xb4/0x5b8
 [<10113bfc>] die_if_kernel+0x1a0/0x1b0
 [<10114320>] handle_interruption+0x48c/0x63c
 [<10104078>] intr_check_sig+0x0/0x34
 [<10118b9c>] pdc_console_write+0x30/0x58
 [<10100488>] flush_instruction_cache_local+0x4/0x28


--MP_/VXS4p+1wRZqOPyUqkJVPNyZ
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Booting...=20
Boot IO Dependent Code (IODC) revision 0


HARD Booted.
palo ipl 1.18 root@hope Fri Apr 13 00:26:11 CEST 2012

Partition Start(MB) End(MB) Id Type
1               1      39   f0 Palo
2              40      78   83 ext2
3              79   16300   83 ext2
4           16301   17359   82 swap

PALO(F0) partition contains:

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).Current co=
mmand line:
2/vmlinux root=3D/dev/sda3 video=3Dmatroxfb:mem:2M,noaccel,init panic=3D5 c=
onsole=3DttyS0
 0: 2/vmlinux
 1: root=3D/dev/sda3
 2: video=3Dmatroxfb:mem:2M,noaccel,init
 3: panic=3D5
 4: console=3DttyS0

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? 0
2/vmlinux.test
Current command line:
2/vmlinux.test root=3D/dev/sda3 video=3Dmatroxfb:mem:2M,noaccel,init panic=
=3D5 console=3DttyS0
 0: 2/vmlinux.test
 1: root=3D/dev/sda3
 2: video=3Dmatroxfb:mem:2M,noaccel,init
 3: panic=3D5
 4: console=3DttyS0

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? b

Command line for kernel: 'root=3D/dev/sda3 video=3Dmatroxfb:mem:2M,noaccel,=
init panic=3D5 console=3DttyS0 palo_kernel=3D2/vmlinux.test'
Selected kernel: /vmlinux.test from partition 2
ELF32 executable
Entry 00100100 first 00100000 n 3
Segment 0 load 00100000 size 5332992 mediaptr 0x1000
Segment 1 load 00644000 size 118480 mediaptr 0x517000
Segment 2 load 00661000 size 27504 mediaptr 0x534000
Branching to kernel entry point 0x00100100.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 3.3.1 (root@hope) (gcc version 4.5.3 (Gentoo 4.5.3-r2 p1.1, p=
ie-0.4.7) ) #4 Wed Apr 18 16:45:35 CEST 2012
unwind_init: start =3D 0x10579000, end =3D 0x105b5fb0, entries =3D 15611
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005cf0 00000481 00000000 00000002 77b310ff 100000f0 00000008 000000=
b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x3
model 9000/785/C3600
Total Memory: 2048 MB
      _______________________________=20
     < Your System ate a SPARC! Gah! >
      -------------------------------=20
             \   ^__^
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
swapper (pid 0): Protection id trap (code 7)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110 Not tainted
r00-03  0004ff0e 10634000 10112cf0 00000000
r04-07  105c0014 105c0000 105bc1cc 105c9bb8
r08-11  105c9bd4 105c0020 105f3800 00000668
r12-15  00100000 00080000 105c0000 105f3f70
r16-19  00080000 10634000 00667fff 000078b5
r20-23  1078c000 00000000 00000000 00000001
r24-27  00000000 00000000 00000000 105c0000
r28-31  00000000 0000078c 105bc2c0 00000000
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10100484 10100488
 IIR: 43ffff40    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 105bc000 CR31: 11111111
 ORIG_R28: 00000000
 IAOQ[0]: flush_instruction_cache_local+0x0/0x28
 IAOQ[1]: flush_instruction_cache_local+0x4/0x28
 RP(r2): flush_cache_all_local+0x10/0x24
Backtrace:
 [<10112cf0>] flush_cache_all_local+0x10/0x24
 [<10646f00>] paging_init+0x7a4/0x848
 [<106474a4>] setup_arch+0x5c/0x80
 [<106446c8>] start_kernel+0x80/0x37c
 [<101134cc>] start_parisc+0x4c/0x68

Backtrace:
 [<10113ba0>] die_if_kernel+0xac/0x1bc
 [<101143cc>] handle_interruption+0x47c/0x718
 [<10104078>] intr_check_sig+0x0/0x34
 [<101191fc>] pdc_console_write+0x30/0x58
 [<10100488>] flush_instruction_cache_local+0x4/0x28

---[ end trace 139ce121c98e96c9 ]---
Kernel panic - not syncing: Attempted to kill the idle task!
      _______________________________=20
     < Your System ate a SPARC! Gah! >
      -------------------------------=20
             \   ^__^
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
swapper (pid 0): Protection id trap (code 7)
die_if_kernel() recursion detected.
  =20

--MP_/VXS4p+1wRZqOPyUqkJVPNyZ
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Content-Disposition: attachment; filename=linux-3.3.1-broken.config

#
# Automatically generated file; DO NOT EDIT.
# Linux/parisc 3.3.1 Kernel Configuration
#
CONFIG_PARISC=3Dy
CONFIG_MMU=3Dy
CONFIG_STACK_GROWSUP=3Dy
CONFIG_RWSEM_GENERIC_SPINLOCK=3Dy
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_BUG=3Dy
CONFIG_GENERIC_HWEIGHT=3Dy
CONFIG_GENERIC_CALIBRATE_DELAY=3Dy
CONFIG_HAVE_LATENCYTOP_SUPPORT=3Dy
CONFIG_STACKTRACE_SUPPORT=3Dy
CONFIG_NEED_DMA_MAP_STATE=3Dy
CONFIG_NEED_SG_DMA_LENGTH=3Dy
CONFIG_DEFCONFIG_LIST=3D"/lib/modules/$UNAME_RELEASE/.config"
CONFIG_HAVE_IRQ_WORK=3Dy
CONFIG_IRQ_WORK=3Dy

#
# General setup
#
CONFIG_EXPERIMENTAL=3Dy
CONFIG_BROKEN_ON_SMP=3Dy
CONFIG_INIT_ENV_ARG_LIMIT=3D32
CONFIG_CROSS_COMPILE=3D""
CONFIG_LOCALVERSION=3D""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_DEFAULT_HOSTNAME=3D"(none)"
CONFIG_SWAP=3Dy
CONFIG_SYSVIPC=3Dy
CONFIG_SYSVIPC_SYSCTL=3Dy
CONFIG_POSIX_MQUEUE=3Dy
CONFIG_POSIX_MQUEUE_SYSCTL=3Dy
CONFIG_BSD_PROCESS_ACCT=3Dy
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
# CONFIG_FHANDLE is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_GENERIC_HARDIRQS=3Dy

#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=3Dy
CONFIG_GENERIC_IRQ_PROBE=3Dy

#
# RCU Subsystem
#
CONFIG_TINY_RCU=3Dy
# CONFIG_PREEMPT_RCU is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_IKCONFIG=3Dy
CONFIG_IKCONFIG_PROC=3Dy
CONFIG_LOG_BUF_SHIFT=3D16
# CONFIG_CGROUPS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=3Dy
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=3Dy
CONFIG_INITRAMFS_SOURCE=3D""
CONFIG_RD_GZIP=3Dy
CONFIG_RD_BZIP2=3Dy
CONFIG_RD_LZMA=3Dy
CONFIG_RD_XZ=3Dy
CONFIG_RD_LZO=3Dy
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=3Dy
CONFIG_ANON_INODES=3Dy
# CONFIG_EXPERT is not set
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=3Dy
CONFIG_KALLSYMS_ALL=3Dy
CONFIG_HOTPLUG=3Dy
CONFIG_PRINTK=3Dy
CONFIG_BUG=3Dy
CONFIG_ELF_CORE=3Dy
CONFIG_BASE_FULL=3Dy
CONFIG_FUTEX=3Dy
CONFIG_EPOLL=3Dy
CONFIG_SIGNALFD=3Dy
CONFIG_TIMERFD=3Dy
CONFIG_EVENTFD=3Dy
CONFIG_SHMEM=3Dy
CONFIG_AIO=3Dy
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=3Dy

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=3Dy
# CONFIG_PERF_COUNTERS is not set
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=3Dy
CONFIG_PCI_QUIRKS=3Dy
CONFIG_SLUB_DEBUG=3Dy
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=3Dy
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=3Dy
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=3Dy

#
# GCOV-based kernel profiling
#
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=3Dy
CONFIG_RT_MUTEXES=3Dy
CONFIG_BASE_SMALL=3D0
CONFIG_MODULES=3Dy
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=3Dy
CONFIG_MODULE_FORCE_UNLOAD=3Dy
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_INIT_ALL_POSSIBLE=3Dy
CONFIG_BLOCK=3Dy
CONFIG_LBDAF=3Dy
CONFIG_BLK_DEV_BSG=3Dy
CONFIG_BLK_DEV_BSGLIB=3Dy
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=3Dy

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=3Dy
CONFIG_IOSCHED_DEADLINE=3Dy
CONFIG_IOSCHED_CFQ=3Dy
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=3Dy
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED=3D"cfq"
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
CONFIG_INLINE_SPIN_UNLOCK=3Dy
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
CONFIG_INLINE_SPIN_UNLOCK_IRQ=3Dy
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
CONFIG_INLINE_READ_UNLOCK=3Dy
# CONFIG_INLINE_READ_UNLOCK_BH is not set
CONFIG_INLINE_READ_UNLOCK_IRQ=3Dy
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
CONFIG_INLINE_WRITE_UNLOCK=3Dy
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
CONFIG_INLINE_WRITE_UNLOCK_IRQ=3Dy
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
# CONFIG_MUTEX_SPIN_ON_OWNER is not set
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=3Dy
CONFIG_PA20=3Dy
CONFIG_PREFETCH=3Dy
# CONFIG_64BIT is not set
CONFIG_PARISC_PAGE_SIZE_4KB=3Dy
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
# CONFIG_SMP is not set
CONFIG_ARCH_FLATMEM_ENABLE=3Dy
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=3Dy
# CONFIG_PREEMPT is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=3Dy
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=3D250
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=3Dy
CONFIG_FLATMEM_MANUAL=3Dy
CONFIG_FLATMEM=3Dy
CONFIG_FLAT_NODE_MEM_MAP=3Dy
CONFIG_PAGEFLAGS_EXTENDED=3Dy
CONFIG_SPLIT_PTLOCK_CPUS=3D4
# CONFIG_COMPACTION is not set
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=3D0
CONFIG_VIRT_TO_BUS=3Dy
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=3D4096
CONFIG_NEED_PER_CPU_KM=3Dy
# CONFIG_CLEANCACHE is not set
# CONFIG_HPUX is not set

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
# CONFIG_GSC is not set
CONFIG_PCI=3Dy
# CONFIG_ARCH_SUPPORTS_MSI is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
CONFIG_PCI_LBA=3Dy
CONFIG_IOSAPIC=3Dy
CONFIG_IOMMU_SBA=3Dy
CONFIG_IOMMU_HELPER=3Dy
# CONFIG_PCCARD is not set
CONFIG_HOTPLUG_PCI=3Dm
# CONFIG_HOTPLUG_PCI_FAKE is not set
# CONFIG_HOTPLUG_PCI_CPCI is not set
# CONFIG_HOTPLUG_PCI_SHPC is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=3Dy
CONFIG_CHASSIS_LCD_LED=3Dy
# CONFIG_PDC_CHASSIS is not set
CONFIG_PDC_CHASSIS_WARN=3Dy
CONFIG_PDC_STABLE=3Dy

#
# Executable file formats
#
CONFIG_BINFMT_ELF=3Dy
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=3Dy
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_NET=3Dy

#
# Networking options
#
CONFIG_PACKET=3Dy
CONFIG_UNIX=3Dy
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=3Dy
CONFIG_XFRM_USER=3Dm
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=3Dm
CONFIG_NET_KEY=3Dm
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=3Dy
CONFIG_IP_MULTICAST=3Dy
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=3Dy
# CONFIG_IP_PNP_DHCP is not set
CONFIG_IP_PNP_BOOTP=3Dy
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=3Dm
CONFIG_INET_XFRM_MODE_TRANSPORT=3Dy
CONFIG_INET_XFRM_MODE_TUNNEL=3Dy
CONFIG_INET_XFRM_MODE_BEET=3Dy
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=3Dy
CONFIG_DEFAULT_TCP_CONG=3D"cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=3Dm
# CONFIG_IPV6_PRIVACY is not set
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
CONFIG_INET6_IPCOMP=3Dm
# CONFIG_IPV6_MIP6 is not set
CONFIG_INET6_XFRM_TUNNEL=3Dm
CONFIG_INET6_TUNNEL=3Dm
CONFIG_INET6_XFRM_MODE_TRANSPORT=3Dm
CONFIG_INET6_XFRM_MODE_TUNNEL=3Dm
CONFIG_INET6_XFRM_MODE_BEET=3Dm
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=3Dm
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=3Dy
CONFIG_IPV6_TUNNEL=3Dm
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=3Dy
CONFIG_NETFILTER_DEBUG=3Dy
# CONFIG_NETFILTER_ADVANCED is not set

#
# Core Netfilter Configuration
#
# CONFIG_NETFILTER_NETLINK_LOG is not set
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NETFILTER_XTABLES is not set
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV4 is not set
# CONFIG_IP_NF_IPTABLES is not set

#
# IPv6: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV6 is not set
# CONFIG_IP6_NF_IPTABLES is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
CONFIG_BQL=3Dy

#
# Network testing
#
CONFIG_NET_PKTGEN=3Dm
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH=3D"/sbin/hotplug"
# CONFIG_DEVTMPFS is not set
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_FW_LOADER=3Dy
CONFIG_FIRMWARE_IN_KERNEL=3Dy
CONFIG_EXTRA_FIRMWARE=3D""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
# CONFIG_DMA_SHARED_BUFFER is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=3Dy
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_UMEM=3Dm
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=3Dy
CONFIG_BLK_DEV_LOOP_MIN_COUNT=3D8
CONFIG_BLK_DEV_CRYPTOLOOP=3Dm

#
# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
#
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_PHANTOM is not set
# CONFIG_INTEL_MID_PTI is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_PCH_PHUB is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#

#
# Altera FPGA firmware download module
#
CONFIG_HAVE_IDE=3Dy
CONFIG_IDE=3Dy

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=3Dy
CONFIG_IDE_ATAPI=3Dy
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_IDE_GD=3Dy
CONFIG_IDE_GD_ATA=3Dy
# CONFIG_IDE_GD_ATAPI is not set
CONFIG_BLK_DEV_IDECD=3Dm
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=3Dy
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=3Dy

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=3Dy

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=3Dy
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=3Dy
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8172 is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=3Dm
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
CONFIG_BLK_DEV_SIIMAGE=3Dm
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
CONFIG_BLK_DEV_IDEDMA=3Dy

#
# SCSI device support
#
CONFIG_SCSI_MOD=3Dy
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=3Dy
CONFIG_SCSI_DMA=3Dy
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=3Dy

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=3Dy
CONFIG_CHR_DEV_ST=3Dm
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=3Dm
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=3Dy
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_MULTI_LUN=3Dy
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=3Dm

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=3Dy
# CONFIG_SCSI_FC_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=3Dm
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=3Dy
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_SCSI_BNX2X_FCOE is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=3Dy
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=3D0
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=3D16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=3D64
CONFIG_SCSI_SYM53C8XX_MMIO=3Dy
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_NSP32 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=3Dm
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=3Dy
CONFIG_SATA_PMP=3Dy

#
# Controllers with non-SFF native interface
#
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=3Dy

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=3Dy

#
# SATA SFF controllers with BMDMA
#
# CONFIG_ATA_PIIX is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
CONFIG_SATA_VIA=3Dm
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CS5536 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
CONFIG_PATA_VIA=3Dm
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=3Dy
# CONFIG_BLK_DEV_MD is not set
CONFIG_BLK_DEV_DM=3Dm
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=3Dm
CONFIG_DM_SNAPSHOT=3Dm
# CONFIG_DM_THIN_PROVISIONING is not set
CONFIG_DM_MIRROR=3Dm
# CONFIG_DM_RAID is not set
# CONFIG_DM_LOG_USERSPACE is not set
CONFIG_DM_ZERO=3Dm
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
CONFIG_DM_UEVENT=3Dy
# CONFIG_DM_FLAKEY is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=3Dy
CONFIG_NET_CORE=3Dy
CONFIG_BONDING=3Dm
CONFIG_DUMMY=3Dm
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
CONFIG_MII=3Dm
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
CONFIG_TUN=3Dm
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set

#
# CAIF transport drivers
#
CONFIG_ETHERNET=3Dy
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_CALXEDA_XGMAC is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=3Dy
CONFIG_NET_TULIP=3Dy
# CONFIG_DE2104X is not set
CONFIG_TULIP=3Dm
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=3Dy
CONFIG_TULIP_NAPI=3Dy
# CONFIG_TULIP_NAPI_HW_MITIGATION is not set
CONFIG_DE4X5=3Dm
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EXAR is not set
# CONFIG_NET_VENDOR_HP is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_IP1000 is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_PACKET_ENGINE is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_SFC is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PHYLIB is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_TR is not set

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=3Dy
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=3Dy
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=3D1600
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=3D1200
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=3Dy
# CONFIG_KEYBOARD_ATKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=3Dy
# CONFIG_MOUSE_PS2 is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=3Dm
CONFIG_SERIO_SERPORT=3Dm
# CONFIG_SERIO_PCIPS2 is not set
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=3Dy
CONFIG_CONSOLE_TRANSLATIONS=3Dy
CONFIG_VT_CONSOLE=3Dy
CONFIG_HW_CONSOLE=3Dy
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=3Dy
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=3Dy
CONFIG_LEGACY_PTY_COUNT=3D256
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVKMEM is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=3Dy
CONFIG_SERIAL_8250_CONSOLE=3Dy
CONFIG_SERIAL_8250_PCI=3Dy
CONFIG_SERIAL_8250_NR_UARTS=3D13
CONFIG_SERIAL_8250_RUNTIME_UARTS=3D4
CONFIG_SERIAL_8250_EXTENDED=3Dy
CONFIG_SERIAL_8250_MANY_PORTS=3Dy
CONFIG_SERIAL_8250_SHARE_IRQ=3Dy
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MFD_HSU is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=3Dy
CONFIG_SERIAL_CORE_CONSOLE=3Dy
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_PCH_UART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
CONFIG_RAW_DRIVER=3Dy
CONFIG_MAX_RAW_DEVS=3D256
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=3Dy
# CONFIG_RAMOOPS is not set
# CONFIG_I2C is not set
# CONFIG_SPI is not set

#
# PPS support
#
# CONFIG_PPS is not set

#
# PPS generators support
#

#
# PTP clock support
#

#
# Enable Device Drivers -> PPS to see the PTP clock options.
#
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=3Dy

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=3Dy

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=3Dy
CONFIG_VGA_ARB_MAX_GPUS=3D1
# CONFIG_DRM is not set
# CONFIG_STUB_POULSBO is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEO_OUTPUT_CONTROL=3Dm
CONFIG_FB=3Dy
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=3Dy
CONFIG_FB_CFB_COPYAREA=3Dy
CONFIG_FB_CFB_IMAGEBLIT=3Dy
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_WMT_GE_ROPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_STI=3Dy
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=3Dy
CONFIG_DUMMY_CONSOLE_COLUMNS=3D160
CONFIG_DUMMY_CONSOLE_ROWS=3D64
CONFIG_FRAMEBUFFER_CONSOLE=3Dy
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_STI_CONSOLE=3Dy
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=3Dy
CONFIG_FONT_8x16=3Dy
CONFIG_LOGO=3Dy
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_LOGO_PARISC_CLUT224=3Dy
CONFIG_SOUND=3Dy
CONFIG_SOUND_OSS_CORE=3Dy
# CONFIG_SOUND_OSS_CORE_PRECLAIM is not set
CONFIG_SND=3Dy
CONFIG_SND_TIMER=3Dy
CONFIG_SND_PCM=3Dy
CONFIG_SND_SEQUENCER=3Dy
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=3Dy
CONFIG_SND_MIXER_OSS=3Dy
CONFIG_SND_PCM_OSS=3Dy
CONFIG_SND_PCM_OSS_PLUGINS=3Dy
CONFIG_SND_SEQUENCER_OSS=3Dy
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=3Dy
CONFIG_SND_VERBOSE_PROCFS=3Dy
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=3Dy
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_AC97_CODEC=3Dy
CONFIG_SND_DRIVERS=3Dy
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_ALOOP is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
# CONFIG_SND_AC97_POWER_SAVE is not set
CONFIG_SND_PCI=3Dy
CONFIG_SND_AD1889=3Dy
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LOLA is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
# CONFIG_SND_USB is not set
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=3Dy
CONFIG_HID_SUPPORT=3Dy
CONFIG_HID=3Dy
# CONFIG_HIDRAW is not set

#
# USB Input Devices
#
CONFIG_USB_HID=3Dy
# CONFIG_HID_PID is not set
CONFIG_USB_HIDDEV=3Dy

#
# Special HID drivers
#
CONFIG_HID_A4TECH=3Dy
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=3Dy
CONFIG_HID_BELKIN=3Dy
CONFIG_HID_CHERRY=3Dy
CONFIG_HID_CHICONY=3Dy
# CONFIG_HID_PRODIKEYS is not set
CONFIG_HID_CYPRESS=3Dy
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
CONFIG_HID_EZKEY=3Dy
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_KEYTOUCH is not set
CONFIG_HID_KYE=3Dy
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_TWINHAN is not set
CONFIG_HID_KENSINGTON=3Dy
# CONFIG_HID_LCPOWER is not set
CONFIG_HID_LOGITECH=3Dy
# CONFIG_HID_LOGITECH_DJ is not set
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWHEELS_FF is not set
CONFIG_HID_MICROSOFT=3Dy
CONFIG_HID_MONTEREY=3Dy
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_NTRIG is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SONY is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
CONFIG_USB_SUPPORT=3Dy
CONFIG_USB_COMMON=3Dy
CONFIG_USB_ARCH_HAS_HCD=3Dy
CONFIG_USB_ARCH_HAS_OHCI=3Dy
CONFIG_USB_ARCH_HAS_EHCI=3Dy
CONFIG_USB_ARCH_HAS_XHCI=3Dy
CONFIG_USB=3Dy
CONFIG_USB_DEBUG=3Dy
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=3Dy
CONFIG_USB_DEVICE_CLASS=3Dy
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
# CONFIG_USB_EHCI_HCD is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=3Dy
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=3Dy
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=3Dm
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
CONFIG_USB_STORAGE_USBAT=3Dm
CONFIG_USB_STORAGE_SDDR09=3Dm
CONFIG_USB_STORAGE_SDDR55=3Dm
CONFIG_USB_STORAGE_JUMPSHOT=3Dm
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=3Dy
CONFIG_RTC_CLASS=3Dy
CONFIG_RTC_HCTOSYS=3Dy
CONFIG_RTC_HCTOSYS_DEVICE=3D"rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=3Dy
CONFIG_RTC_INTF_PROC=3Dy
CONFIG_RTC_INTF_DEV=3Dy
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=3Dy
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_BALLOON is not set
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_STAGING is not set

#
# Hardware Spinlock drivers
#
# CONFIG_IOMMU_SUPPORT is not set
# CONFIG_VIRT_DRIVERS is not set
# CONFIG_PM_DEVFREQ is not set

#
# File systems
#
CONFIG_EXT2_FS=3Dy
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=3Dy
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_EXT4_FS=3Dm
CONFIG_EXT4_FS_XATTR=3Dy
CONFIG_EXT4_FS_POSIX_ACL=3Dy
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD=3Dy
CONFIG_JBD2=3Dm
CONFIG_FS_MBCACHE=3Dm
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=3Dy
# CONFIG_XFS_QUOTA is not set
# CONFIG_XFS_POSIX_ACL is not set
# CONFIG_XFS_RT is not set
# CONFIG_XFS_DEBUG is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FS_POSIX_ACL=3Dy
CONFIG_EXPORTFS=3Dy
CONFIG_FILE_LOCKING=3Dy
CONFIG_FSNOTIFY=3Dy
CONFIG_DNOTIFY=3Dy
CONFIG_INOTIFY_USER=3Dy
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=3Dy
CONFIG_JOLIET=3Dy
CONFIG_ZISOFS=3Dy
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=3Dm
# CONFIG_MSDOS_FS is not set
CONFIG_VFAT_FS=3Dm
CONFIG_FAT_DEFAULT_CODEPAGE=3D437
CONFIG_FAT_DEFAULT_IOCHARSET=3D"iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=3Dy
CONFIG_PROC_KCORE=3Dy
CONFIG_PROC_SYSCTL=3Dy
CONFIG_PROC_PAGE_MONITOR=3Dy
CONFIG_SYSFS=3Dy
CONFIG_TMPFS=3Dy
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=3Dy
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_PSTORE is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=3Dy
CONFIG_NFS_FS=3Dy
CONFIG_NFS_V3=3Dy
# CONFIG_NFS_V3_ACL is not set
# CONFIG_NFS_V4 is not set
# CONFIG_ROOT_NFS is not set
CONFIG_NFSD=3Dy
CONFIG_NFSD_V3=3Dy
# CONFIG_NFSD_V3_ACL is not set
# CONFIG_NFSD_V4 is not set
CONFIG_LOCKD=3Dy
CONFIG_LOCKD_V4=3Dy
CONFIG_NFS_COMMON=3Dy
CONFIG_SUNRPC=3Dy
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_NLS=3Dy
CONFIG_NLS_DEFAULT=3D"iso8859-1"
CONFIG_NLS_CODEPAGE_437=3Dm
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=3Dm
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=3Dm
CONFIG_NLS_ISO8859_1=3Dm
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=3Dm
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=3Dm

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=3D4
CONFIG_ENABLE_WARN_DEPRECATED=3Dy
CONFIG_ENABLE_MUST_CHECK=3Dy
CONFIG_FRAME_WARN=3D1024
CONFIG_MAGIC_SYSRQ=3Dy
CONFIG_STRIP_ASM_SYMS=3Dy
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_DEBUG_FS is not set
CONFIG_HEADERS_CHECK=3Dy
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_DEBUG_KERNEL=3Dy
# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_HARDLOCKUP_DETECTOR is not set
CONFIG_DETECT_HUNG_TASK=3Dy
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=3D120
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=3D0
CONFIG_SCHED_DEBUG=3Dy
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
CONFIG_DEBUG_MUTEXES=3Dy
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=3Dy
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=3Dy
# CONFIG_DEBUG_LIST is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
# CONFIG_SYSCTL_SYSCALL_CHECK is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_BUILD_DOCSRC is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_SAMPLES is not set
# CONFIG_TEST_KSTRTOX is not set
CONFIG_DEBUG_RODATA=3Dy
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=3Dy
CONFIG_DEFAULT_SECURITY=3D""
CONFIG_CRYPTO=3Dy

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=3Dm
CONFIG_CRYPTO_ALGAPI2=3Dm
CONFIG_CRYPTO_AEAD2=3Dm
CONFIG_CRYPTO_BLKCIPHER=3Dm
CONFIG_CRYPTO_BLKCIPHER2=3Dm
CONFIG_CRYPTO_HASH=3Dm
CONFIG_CRYPTO_HASH2=3Dm
CONFIG_CRYPTO_RNG2=3Dm
CONFIG_CRYPTO_PCOMP2=3Dm
CONFIG_CRYPTO_MANAGER=3Dm
CONFIG_CRYPTO_MANAGER2=3Dm
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=3Dy
# CONFIG_CRYPTO_GF128MUL is not set
CONFIG_CRYPTO_NULL=3Dm
CONFIG_CRYPTO_WORKQUEUE=3Dm
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
CONFIG_CRYPTO_TEST=3Dm

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=3Dm
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=3Dm
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=3Dm
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
CONFIG_CRYPTO_BLOWFISH=3Dm
CONFIG_CRYPTO_BLOWFISH_COMMON=3Dm
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=3Dm
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=3Dm
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_HW is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=3Dy
CONFIG_GENERIC_PCI_IOMAP=3Dy
CONFIG_CRC_CCITT=3Dm
CONFIG_CRC16=3Dm
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=3Dy
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=3Dm
# CONFIG_CRC8 is not set
CONFIG_ZLIB_INFLATE=3Dy
CONFIG_ZLIB_DEFLATE=3Dm
CONFIG_LZO_DECOMPRESS=3Dy
CONFIG_XZ_DEC=3Dy
CONFIG_XZ_DEC_X86=3Dy
CONFIG_XZ_DEC_POWERPC=3Dy
CONFIG_XZ_DEC_IA64=3Dy
CONFIG_XZ_DEC_ARM=3Dy
CONFIG_XZ_DEC_ARMTHUMB=3Dy
CONFIG_XZ_DEC_SPARC=3Dy
CONFIG_XZ_DEC_BCJ=3Dy
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=3Dy
CONFIG_DECOMPRESS_BZIP2=3Dy
CONFIG_DECOMPRESS_LZMA=3Dy
CONFIG_DECOMPRESS_XZ=3Dy
CONFIG_DECOMPRESS_LZO=3Dy
CONFIG_HAS_IOMEM=3Dy
CONFIG_HAS_IOPORT=3Dy
CONFIG_HAS_DMA=3Dy
CONFIG_DQL=3Dy
CONFIG_NLATTR=3Dy
CONFIG_GENERIC_ATOMIC64=3Dy
# CONFIG_AVERAGE is not set
# CONFIG_CORDIC is not set

--MP_/VXS4p+1wRZqOPyUqkJVPNyZ--

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From - Thu Nov 08 21:08:06 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 3/6] parisc: add missing forward declarations in asm/hardware.h
Date: Sat, 21 Apr 2012 20:15:52 +0200
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=46ixes this warnings:

In file included from /home/buildbot/repos/linux/arch/parisc/include/as=
m/processor.h:15:0,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/spinlock.h:4,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/atomic.h:20,
                 from /home/buildbot/repos/linux/include/linux/atomic.h=
:4,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/bitops.h:11,
                 from /home/buildbot/repos/linux/include/linux/bitops.h=
:22,
                 from /home/buildbot/repos/linux/include/linux/kernel.h=
:19,
                 from /home/buildbot/repos/linux/include/linux/sched.h:=
55,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/asm=
-offsets.c:31:
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:106:10: w=
arning: =E2=80=98struct hardware_path=E2=80=99 declared inside paramete=
r list [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:106:10: w=
arning: its scope is only this definition or declaration, which is prob=
ably not what you want [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:116:59: w=
arning: =E2=80=98struct hardware_path=E2=80=99 declared inside paramete=
r list [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:118:47: w=
arning: =E2=80=98struct hardware_path=E2=80=99 declared inside paramete=
r list [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:119:57: w=
arning: =E2=80=98struct hardware_path=E2=80=99 declared inside paramete=
r list [enabled by default]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 arch/parisc/include/asm/hardware.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/include/asm/hardware.h b/arch/parisc/include/a=
sm/hardware.h
index 4e96268..036e703 100644
--- a/arch/parisc/include/asm/hardware.h
+++ b/arch/parisc/include/asm/hardware.h
@@ -95,12 +95,14 @@ struct bc_module {
 #define HPHW_MC	       15
 #define HPHW_FAULTY    31
=20
+struct parisc_device_id;
=20
 /* hardware.c: */
 extern const char *parisc_hardware_description(struct parisc_device_id=
 *id);
 extern enum cpu_type parisc_get_cpu_type(unsigned long hversion);
=20
 struct pci_dev;
+struct hardware_path;
=20
 /* drivers.c: */
 extern struct parisc_device *alloc_pa_dev(unsigned long hpa,
--=20
1.7.9.2


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From - Thu Nov 08 21:08:06 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 4/6] parisc: drop include of asm/pdc.h from asm/hardware.h
Date: Sat, 21 Apr 2012 20:17:43 +0200
Lines: 66
Approved: news@gmane.org
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It seems none of the symbols defined by pdc.h is needed, but it introdu=
ces an
include loop causing compile errors:

In file included from /home/buildbot/repos/linux/arch/parisc/include/as=
m/spinlock.h:4:0,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/atomic.h:20,
                 from /home/buildbot/repos/linux/include/linux/atomic.h=
:4,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/bitops.h:56,
                 from /home/buildbot/repos/linux/include/linux/bitops.h=
:35,
                 from /home/buildbot/repos/linux/include/asm-generic/ge=
torder.h:7,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/page.h:162,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/pdc.h:346,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/hardware.h:5,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/har=
dware.c:30:
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:74:16: e=
rror: field =E2=80=98cpu_type=E2=80=99 has incomplete type
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:77:20: e=
rror: field =E2=80=98model=E2=80=99 has incomplete type
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h: In func=
tion =E2=80=98parisc_requires_coherency=E2=80=99:
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:349:36: =
error: =E2=80=98mako=E2=80=99 undeclared (first use in this function)
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:349:36: =
note: each undeclared identifier is reported only once for each functio=
n it appears in
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:350:30: =
error: =E2=80=98mako2=E2=80=99 undeclared (first use in this function)

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 arch/parisc/include/asm/hardware.h |    1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/parisc/include/asm/hardware.h b/arch/parisc/include/a=
sm/hardware.h
index 036e703..d1d864b 100644
--- a/arch/parisc/include/asm/hardware.h
+++ b/arch/parisc/include/asm/hardware.h
@@ -2,7 +2,6 @@
 #define _PARISC_HARDWARE_H
=20
 #include <linux/mod_devicetable.h>
-#include <asm/pdc.h>
=20
 #define HWTYPE_ANY_ID		PA_HWTYPE_ANY_ID
 #define HVERSION_ANY_ID		PA_HVERSION_ANY_ID
--=20
1.7.9.2


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From - Thu Nov 08 21:08:06 2018
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Subject: [PATCH 0/6] PA-RISC: fix compile
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	"H. Peter Anvin" <hpa@zytor.com>,
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Since d66acc39c7cee323733c8503b9de1821a56dff7e (bitops: Optimise get_order())
getorder.h includes log2.h which leads to an include loop on PA-RISC, bringing 
a bunch of other breakage to light. This patchset fixes the compilation of the 
current state of 3.4 on HPPA.

Rolf Eike Beer (6):
  use linux/bitops.h instead of linux/log2.h to get fls()
  parisc: add missing includes in asm/spinlock.h
  parisc: add missing forward declarations in asm/hardware.h
  parisc: drop include of asm/pdc.h from asm/hardware.h
  parisc: add missing include of asm/page.h to asm/pgtable.h
  parisc: move definition of PAGE0 to asm/page.h

 arch/parisc/include/asm/hardware.h |    3 ++-
 arch/parisc/include/asm/page.h     |    6 ++++++
 arch/parisc/include/asm/pdc.h      |    7 -------
 arch/parisc/include/asm/pgtable.h  |    2 ++
 arch/parisc/include/asm/spinlock.h |    2 ++
 arch/parisc/kernel/pdc_cons.c      |    1 +
 arch/parisc/kernel/time.c          |    1 +
 drivers/parisc/sba_iommu.c         |    1 +
 drivers/video/console/sticore.c    |    2 ++
 include/asm-generic/getorder.h     |    2 +-
 10 files changed, 18 insertions(+), 9 deletions(-)

-- 
1.7.9.2

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From - Thu Nov 08 21:08:06 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 5/6] parisc: add missing include of asm/page.h to asm/pgtable.h
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Fixes these errors:

In file included from /home/buildbot/repos/linux/arch/parisc/include/asm/io.h:5:0,
                 from /home/buildbot/repos/linux/include/linux/io.h:22,
                 from /home/buildbot/repos/linux/include/linux/pci.h:54,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/setup.c:35:
/home/buildbot/repos/linux/arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef]
/home/buildbot/repos/linux/arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef]
/home/buildbot/repos/linux/arch/parisc/include/asm/pgtable.h:92:6: warning: "BITS_PER_PTE_ENTRY" is not defined [-Wundef]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 arch/parisc/include/asm/pgtable.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 22dadeb..ee99f23 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -44,6 +44,8 @@ struct vm_area_struct;
 
 #endif /* !__ASSEMBLY__ */
 
+#include <asm/page.h>
+
 #define pte_ERROR(e) \
 	printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
 #define pmd_ERROR(e) \
-- 
1.7.9.2


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Since d66acc39c7cee323733c8503b9de1821a56dff7e (bitops: Optimise get_order())
getorder.h includes log2.h which leads to an include loop on PA-RISC, bringing 
a bunch of other breakage to light. This patchset fixes the compilation of the 
current state of 3.4 on HPPA.

Rolf Eike Beer (6):
  use linux/bitops.h instead of linux/log2.h to get fls()
  parisc: add missing includes in asm/spinlock.h
  parisc: add missing forward declarations in asm/hardware.h
  parisc: drop include of asm/pdc.h from asm/hardware.h
  parisc: add missing include of asm/page.h to asm/pgtable.h
  parisc: move definition of PAGE0 to asm/page.h

 arch/parisc/include/asm/hardware.h |    3 ++-
 arch/parisc/include/asm/page.h     |    6 ++++++
 arch/parisc/include/asm/pdc.h      |    7 -------
 arch/parisc/include/asm/pgtable.h  |    2 ++
 arch/parisc/include/asm/spinlock.h |    2 ++
 arch/parisc/kernel/pdc_cons.c      |    1 +
 arch/parisc/kernel/time.c          |    1 +
 drivers/parisc/sba_iommu.c         |    1 +
 drivers/video/console/sticore.c    |    2 ++
 include/asm-generic/getorder.h     |    2 +-
 10 files changed, 18 insertions(+), 9 deletions(-)

-- 
1.7.9.2

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This was defined in asm/pdc.h which needs to include asm/page.h for
__PAGE_OFFSET. This leads to an include loop so that page.h eventually =
will
include pdc.h again. While this is no problem because of header guards,=
 it is
a problem because some symbols may be undefined. Such an error is this:

In file included from /home/buildbot/repos/linux/include/linux/bitops.h=
:35:0,
                 from /home/buildbot/repos/linux/include/asm-generic/ge=
torder.h:7,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/page.h:162,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/pdc.h:346,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/processor.h:16,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/spinlock.h:6,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/atomic.h:20,
                 from /home/buildbot/repos/linux/include/linux/atomic.h=
:4,
                 from /home/buildbot/repos/linux/include/linux/sysfs.h:=
20,
                 from /home/buildbot/repos/linux/include/linux/kobject.=
h:21,
                 from /home/buildbot/repos/linux/include/linux/device.h=
:17,
                 from /home/buildbot/repos/linux/include/linux/eisa.h:5=
,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/pci=
=2Ec:11:
/home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h: In functio=
n =E2=80=98set_bit=E2=80=99:
/home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:82:2: error=
: implicit declaration of function =E2=80=98_atomic_spin_lock_irqsave=E2=
=80=99 [-Werror=3Dimplicit-function-declaration]
/home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:84:2: error=
: implicit declaration of function =E2=80=98_atomic_spin_unlock_irqrest=
ore=E2=80=99 [-Werror=3Dimplicit-function-declaration]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 arch/parisc/include/asm/page.h  |    6 ++++++
 arch/parisc/include/asm/pdc.h   |    7 -------
 arch/parisc/kernel/pdc_cons.c   |    1 +
 arch/parisc/kernel/time.c       |    1 +
 drivers/parisc/sba_iommu.c      |    1 +
 drivers/video/console/sticore.c |    2 ++
 6 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/p=
age.h
index a84cc1f..4e0e7db 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -160,5 +160,11 @@ extern int npmem_ranges;
=20
 #include <asm-generic/memory_model.h>
 #include <asm-generic/getorder.h>
+#include <asm/pdc.h>
+
+#define PAGE0   ((struct zeropage *)__PAGE_OFFSET)
+
+/* DEFINITION OF THE ZERO-PAGE (PAG0) */
+/* based on work by Jason Eckhardt (jason@equator.com) */
=20
 #endif /* _PARISC_PAGE_H */
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pd=
c.h
index 4ca510b..7f0f2d2 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -343,8 +343,6 @@
=20
 #ifdef __KERNEL__
=20
-#include <asm/page.h> /* for __PAGE_OFFSET */
-
 extern int pdc_type;
=20
 /* Values for pdc_type */
@@ -677,11 +675,6 @@ static inline char * os_id_to_string(u16 os_id) {
=20
 #endif /* __KERNEL__ */
=20
-#define PAGE0   ((struct zeropage *)__PAGE_OFFSET)
-
-/* DEFINITION OF THE ZERO-PAGE (PAG0) */
-/* based on work by Jason Eckhardt (jason@equator.com) */
-
 /* flags of the device_path */
 #define	PF_AUTOBOOT	0x80
 #define	PF_AUTOSEARCH	0x40
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_con=
s.c
index 4f00459..9bbd2a5 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -50,6 +50,7 @@
 #include <linux/init.h>
 #include <linux/major.h>
 #include <linux/tty.h>
+#include <asm/page.h>		/* for PAGE0 */
 #include <asm/pdc.h>		/* for iodc_call() proto and friends */
=20
 static DEFINE_SPINLOCK(pdc_console_lock);
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 7c07743..70e105d 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -29,6 +29,7 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/irq.h>
+#include <asm/page.h>
 #include <asm/param.h>
 #include <asm/pdc.h>
 #include <asm/led.h>
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 8644d53..42cfcd9 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -44,6 +44,7 @@
 #include <asm/ropes.h>
 #include <asm/mckinley.h>	/* for proc_mckinley_root */
 #include <asm/runway.h>		/* for proc_runway_root */
+#include <asm/page.h>		/* for PAGE0 */
 #include <asm/pdc.h>		/* for PDC_MODEL_* */
 #include <asm/pdcpat.h>		/* for is_pdc_pat() */
 #include <asm/parisc-device.h>
diff --git a/drivers/video/console/sticore.c b/drivers/video/console/st=
icore.c
index 6468a29..39571f9 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -22,7 +22,9 @@
 #include <linux/font.h>
=20
 #include <asm/hardware.h>
+#include <asm/page.h>
 #include <asm/parisc-device.h>
+#include <asm/pdc.h>
 #include <asm/cacheflush.h>
 #include <asm/grfioctl.h>
=20
--=20
1.7.9.2


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Since d66acc39c7cee323733c8503b9de1821a56dff7e (bitops: Optimise get_order())
getorder.h includes log2.h to get fls() and fls64(). They are not defined in
log2.h, but in bitops.h. This works since log2.h includes bitops.h, but we
should do it properly to not get any bad surprises if log2.h changes.

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 include/asm-generic/getorder.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/asm-generic/getorder.h b/include/asm-generic/getorder.h
index 65e4468..563114f 100644
--- a/include/asm-generic/getorder.h
+++ b/include/asm-generic/getorder.h
@@ -4,7 +4,7 @@
 #ifndef __ASSEMBLY__
 
 #include <linux/compiler.h>
-#include <linux/log2.h>
+#include <linux/bitops.h>
 
 /*
  * Runtime evaluation of get_order()
-- 
1.7.9.2


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Since d66acc39c7cee323733c8503b9de1821a56dff7e (bitops: Optimise get_order())
getorder.h includes log2.h to get fls() and fls64(). They are not defined in
log2.h, but in bitops.h. This works since log2.h includes bitops.h, but we
should do it properly to not get any bad surprises if log2.h changes.

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 include/asm-generic/getorder.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/asm-generic/getorder.h b/include/asm-generic/getorder.h
index 65e4468..563114f 100644
--- a/include/asm-generic/getorder.h
+++ b/include/asm-generic/getorder.h
@@ -4,7 +4,7 @@
 #ifndef __ASSEMBLY__
 
 #include <linux/compiler.h>
-#include <linux/log2.h>
+#include <linux/bitops.h>
 
 /*
  * Runtime evaluation of get_order()
-- 
1.7.9.2

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This leads to this errors:

In file included from /home/buildbot/repos/linux/arch/parisc/include/as=
m/atomic.h:20:0,
                 from /home/buildbot/repos/linux/include/linux/atomic.h=
:4,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/bitops.h:56,
                 from /home/buildbot/repos/linux/include/linux/bitops.h=
:22,
                 from /home/buildbot/repos/linux/include/linux/kernel.h=
:19,
                 from /home/buildbot/repos/linux/include/linux/sched.h:=
55,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/asm=
-offsets.c:31:
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h: In funct=
ion =E2=80=98arch_spin_is_locked=E2=80=99:
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:9:2: erro=
r: implicit declaration of function =E2=80=98__ldcw_align=E2=80=99 [-We=
rror=3Dimplicit-function-declaration]
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:9:29: war=
ning: initialization makes pointer from integer without a cast [enabled=
 by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h: In funct=
ion =E2=80=98arch_spin_lock_flags=E2=80=99:
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:22:2: err=
or: implicit declaration of function =E2=80=98mb=E2=80=99 [-Werror=3Dim=
plicit-function-declaration]
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:23:4: war=
ning: assignment makes pointer from integer without a cast [enabled by =
default]
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:24:2: err=
or: implicit declaration of function =E2=80=98__ldcw=E2=80=99 [-Werror=3D=
implicit-function-declaration]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 arch/parisc/include/asm/spinlock.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/a=
sm/spinlock.h
index 804aa28..3516e0b 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -1,6 +1,8 @@
 #ifndef __ASM_SPINLOCK_H
 #define __ASM_SPINLOCK_H
=20
+#include <asm/barrier.h>
+#include <asm/ldcw.h>
 #include <asm/processor.h>
 #include <asm/spinlock_types.h>
=20
--=20
1.7.9.2

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On 19-Apr-12, at 4:26 AM, Guy Martin wrote:

> The same from the non working 3.3.1 one :
> 10100000 A _text
> 10100100 T _stext
> 10100100 T stext


It seems to me that _stext should be at the same address as _text.
_stext/stext are in __HEAD.  It is

./include/linux/init.h:#define __HEAD		.section	".head.text","ax"
./include/asm-generic/vmlinux.lds.h:#define HEAD_TEXT  *(.head.text)

We have the following in head.S:

         __HEAD

         .align  4
         .import init_thread_union,data
         .import fault_vector_20,code    /* IVA parisc 2.0 32 bit */
#ifndef CONFIG_64BIT
         .import fault_vector_11,code    /* IVA parisc 1.1 32 bit */
         .import $global$                /* forward declaration */
#endif /*!CONFIG_64BIT*/
         .export _stext,data             /* Kernel want it this way! */
_stext:
ENTRY(stext)
         .proc
         .callinfo

         /* Make sure sr4-sr7 are set to zero for the kernel address  
space */
         mtsp    %r0,%sr4

and the following in vmlinux.lds.S:

SECTIONS
{
         . = KERNEL_BINARY_TEXT_START;

         _text = .;              /* Text and read-only data */
         .text ALIGN(16) : {
                 HEAD_TEXT
                 TEXT_TEXT

It would appear the linker has messed up the ALIGN(16), but it
isn't clear why.  If you look at the kernel with objdump, I would
expect zeros from 10100000 to 10100100, but maybe something
else is there.

I don't think this is directly related to the size of the kernel.

I vaguely recall seeing this before.

Dave
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On 21-Apr-12, at 3:15 PM, John David Anglin wrote:

> It would appear the linker has messed up the ALIGN(16), but it
> isn't clear why.  If you look at the kernel with objdump, I would
> expect zeros from 10100000 to 10100100, but maybe something
> else is there.
>
> I don't think this is directly related to the size of the kernel.


As usual, I'm wrong ;(

The problem is kernel size related.

Disassembly of section .text:

10100000 <stext-0x100>:
10100000:       20 2e b2 02     ldil L%1019d800,r1
10100004:       e0 20 2c 7a     be,n 63c(sr4,r1)
...

We have a bunch of long branch stubs at the beginning of the kernel.

Dave
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On 19-Apr-12, at 4:26 AM, Guy Martin wrote:

> Hi all,
>
> I compiled a kernel with a few additional features and I was unable to
> boot it. It seems that if the entry point is not 0x00100000 in  
> vmlinux,
> the boot process fails right after "Total Memory: 2048 MB".
> This is the only common denominator I could find.
>
> I've been able to reproduce this with :
> - C3600 and J5600
> - kernel 3.2.12 and 3.3.1
> - gcc 4.5.3
> - ld 2.21 and 2.22
> - palo 1.17 and 1.18


Could you try the attached patch?  It adjusts the section arrangement so
that the long branch stubs don't appear at the start of .text.  As a  
result,
_stext and stext now are at 10100000.

The problem arises from section merging and a few branch distances
in the kernel exceeding the PA 2.0 limit.

The patch might not work if the long branch stubs don't work...

Another approach might be to add -mlong-calls to CFLAGS.  However,
these calls are less efficient.

Dave
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diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index fa6f2b8..64a9998 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -50,8 +50,10 @@ SECTIONS
 	. = KERNEL_BINARY_TEXT_START;
 
 	_text = .;		/* Text and read-only data */
-	.text ALIGN(16) : {
+	.head ALIGN(16) : {
 		HEAD_TEXT
+	} = 0
+	.text ALIGN(16) : {
 		TEXT_TEXT
 		SCHED_TEXT
 		LOCK_TEXT
@@ -65,7 +67,7 @@ SECTIONS
 		*(.fixup)
 		*(.lock.text)		/* out-of-line lock text */
 		*(.gnu.warning)
-	} = 0
+	}
 	/* End of text section */
 	_etext = .;
 

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On Sat, Apr 21, 2012 at 11:17 AM, Rolf Eike Beer <eike-kernel@sf-tec.de=
> wrote:
> It seems none of the symbols defined by pdc.h is needed,

Rolf,
I looked through both files and I agree whatever dependency might have
exsisted, doesn't appear to now.

thanks for cleaning this up,
grant

> but it introduces an
> include loop causing compile errors:
>
> In file included from /home/buildbot/repos/linux/arch/parisc/include/=
asm/spinlock.h:4:0,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 from /home/bu=
ildbot/repos/linux/arch/parisc/include/asm/atomic.h:20,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 from /home/bu=
ildbot/repos/linux/include/linux/atomic.h:4,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 from /home/bu=
ildbot/repos/linux/arch/parisc/include/asm/bitops.h:56,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 from /home/bu=
ildbot/repos/linux/include/linux/bitops.h:35,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 from /home/bu=
ildbot/repos/linux/include/asm-generic/getorder.h:7,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 from /home/bu=
ildbot/repos/linux/arch/parisc/include/asm/page.h:162,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 from /home/bu=
ildbot/repos/linux/arch/parisc/include/asm/pdc.h:346,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 from /home/bu=
ildbot/repos/linux/arch/parisc/include/asm/hardware.h:5,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 from /home/bu=
ildbot/repos/linux/arch/parisc/kernel/hardware.c:30:
> /home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:74:16:=
 error: field =E2=80=98cpu_type=E2=80=99 has incomplete type
> /home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:77:20:=
 error: field =E2=80=98model=E2=80=99 has incomplete type
> /home/buildbot/repos/linux/arch/parisc/include/asm/processor.h: In fu=
nction =E2=80=98parisc_requires_coherency=E2=80=99:
> /home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:349:36=
: error: =E2=80=98mako=E2=80=99 undeclared (first use in this function)
> /home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:349:36=
: note: each undeclared identifier is reported only once for each funct=
ion it appears in
> /home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:350:30=
: error: =E2=80=98mako2=E2=80=99 undeclared (first use in this function=
)
>
> Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
> ---
> =C2=A0arch/parisc/include/asm/hardware.h | =C2=A0 =C2=A01 -
> =C2=A01 file changed, 1 deletion(-)
>
> diff --git a/arch/parisc/include/asm/hardware.h b/arch/parisc/include=
/asm/hardware.h
> index 036e703..d1d864b 100644
> --- a/arch/parisc/include/asm/hardware.h
> +++ b/arch/parisc/include/asm/hardware.h
> @@ -2,7 +2,6 @@
> =C2=A0#define _PARISC_HARDWARE_H
>
> =C2=A0#include <linux/mod_devicetable.h>
> -#include <asm/pdc.h>
>
> =C2=A0#define HWTYPE_ANY_ID =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0PA_HWTY=
PE_ANY_ID
> =C2=A0#define HVERSION_ANY_ID =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0PA_HVERSION_ANY_ID
> --
> 1.7.9.2
>
>
> --
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Subject: Re: hppa: glibc and gcc 4.6, "error: _rtld_global_ro causes a section type conflict"
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On 15-Apr-12, at 11:00 AM, Carlos O'Donell wrote:

> When compiling glibc on magnum with gcc-4.6 I get an odd failure about
> section type conflicts.


After discussing the issue with Jakub Jelinek,  it appears the bug is  
caused by placing
function labels (plabels) in the constant pool.  PA has done this for  
longer than I can
remember, but it doesn't appear necessary.  As you know, only ia64 and  
pa use plabels.
This causes the setting of default flags for .data.rel.ro which  
conflict with those needed
for _rtld_global_ro in the dynamic linker.  The problem doesn't have  
anything directly
to do with the handling of the variable _rtld_global_ro.  This was  
what was confusing
me as everything seemed generic.

I am testing a fix.  Your testcase compiles successfully with the fix.

The issue is incredibly subtle.  I would guess it was just a matter of  
luck that other targets
aren't affected given that the code in rtld.c is not exactly exactly  
kosher from GCC POV.

Regards,
Dave
--
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Subject: Re: hppa: glibc and gcc 4.6, "error: _rtld_global_ro causes a section
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On Tue, Apr 24, 2012 at 7:55 PM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
> On 15-Apr-12, at 11:00 AM, Carlos O'Donell wrote:
>
>> When compiling glibc on magnum with gcc-4.6 I get an odd failure abo=
ut
>> section type conflicts.
>
>
>
> After discussing the issue with Jakub Jelinek, =A0it appears the bug =
is caused
> by placing
> function labels (plabels) in the constant pool.

Interesting.

> PA has done this for longer
> than I can
> remember, but it doesn't appear necessary. =A0As you know, only ia64 =
and pa
> use plabels.

Yes, we both rely on the plabel code in glibc.

> This causes the setting of default flags for .data.rel.ro which confl=
ict
> with those needed
> for _rtld_global_ro in the dynamic linker. =A0The problem doesn't hav=
e
> anything directly
> to do with the handling of the variable _rtld_global_ro. =A0This was =
what was
> confusing
> me as everything seemed generic.

Me too.

> I am testing a fix. =A0Your testcase compiles successfully with the f=
ix.

Excellent!

> The issue is incredibly subtle. =A0I would guess it was just a matter=
 of luck
> that other targets
> aren't affected given that the code in rtld.c is not exactly exactly =
kosher
> from GCC POV.

The dynamic linker isn't exactly kosher :-)

Cheers,
Carlos.
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From: Guy Martin <gmsoft@tuxicoman.be>
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On Sun, 22 Apr 2012 08:20:23 -0400
John David Anglin <dave.anglin@bell.net> wrote:
> 
> Could you try the attached patch?  It adjusts the section arrangement
> so that the long branch stubs don't appear at the start of .text.  As
> a result,
> _stext and stext now are at 10100000.

Works like a charm. I was able to boot all the kernels I had issue with.

Tested-by: Guy Martin <gmsoft@tuxicoman.be>

Thanks a lot !

  Guy

> 
> The problem arises from section merging and a few branch distances
> in the kernel exceeding the PA 2.0 limit.
> 
> The patch might not work if the long branch stubs don't work...
> 
> Another approach might be to add -mlong-calls to CFLAGS.  However,
> these calls are less efficient.
> 
> Dave
> --
> John David Anglin	dave.anglin@bell.net
> 
> 


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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: [PATCH 0/6] PA-RISC: fix compile
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Rolf Eike Beer wrote:
> Since d66acc39c7cee323733c8503b9de1821a56dff7e (bitops: Optimise
> get_order()) getorder.h includes log2.h which leads to an include loop on
> PA-RISC, bringing a bunch of other breakage to light. This patchset fixes
> the compilation of the current state of 3.4 on HPPA.
> 
> Rolf Eike Beer (6):
>   use linux/bitops.h instead of linux/log2.h to get fls()
>   parisc: add missing includes in asm/spinlock.h
>   parisc: add missing forward declarations in asm/hardware.h
>   parisc: drop include of asm/pdc.h from asm/hardware.h
>   parisc: add missing include of asm/page.h to asm/pgtable.h
>   parisc: move definition of PAGE0 to asm/page.h

Ping? #4 meanwhile got an ACK from Grant, I have not received any other 
comments. James, could you please take the latter 5 if you don't feel 
comfortable with the first one? That one is just a cleanup and makes no 
difference (yet) if things work or not.

Eike
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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: [PATCH] Fix compile failure on PA-RISC
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Hi

This patch fixes compile failure on PA-RISC.

BTW. if the PA-RISC port is uncompilable for all 3.4-rc versions (and 
contains two other bugs that prevent it from booting) ... does it mean 
that I'm the only one who is using PA-RISC with recent kernel?

Mikulas

---

Fix compile failure on PA-RISC

This patch fixes compile error on PA-RISC.

The problem is this:
linux/bitops.h includes asm/bitops.h. Through a chain of dependencies
asm/bitops.h includes asm/page.h and asm/page.h needs function fls and
others defined in asm/bitops.h and linux/bitops.h --- and these
functions are not yet defined because the files linux/bitops.h and
asm/bitops.h hasn't been fully processed.

I moved cpu_relax from asm/processor.h to asm/barrier.h (and I changed
asm/processor.h to include asm/barrier.h so that current users can
assume that asm/processor.h defines cpu_relax). I changed asm/spinlock.h
to include asm/barrier.h and NOT include asm/processor.h. This breaks
the circular chain of dependencies and makes the kernel compile.


  CHK     include/linux/version.h
  UPD     include/linux/version.h
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  CC      scripts/mod/empty.o
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/file2alias.o
  CC      kernel/bounds.s
  GEN     include/generated/bounds.h
  CC      arch/parisc/kernel/asm-offsets.s
In file included from include/asm-generic/getorder.h:7:0,
                 from /usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/page.h:162,
                 from /usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/pdc.h:346,
                 from /usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/hardware.h:5,
                 from /usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/processor.h:15,
                 from /usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h:4,
                 from /usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/atomic.h:20,
                 from include/linux/atomic.h:4,
                 from /usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h:11,
                 from include/linux/bitops.h:22,
                 from include/linux/kernel.h:19,
                 from include/linux/sched.h:55,
                 from arch/parisc/kernel/asm-offsets.c:31:
include/linux/log2.h: In function '__ilog2_u32':
include/linux/log2.h:34:2: error: implicit declaration of function 'fls' [-Werror=implicit-function-declaration]
include/linux/log2.h: In function '__ilog2_u64':
include/linux/log2.h:42:2: error: implicit declaration of function 'fls64' [-Werror=implicit-function-declaration]
include/linux/log2.h: In function '__roundup_pow_of_two':
include/linux/log2.h:63:2: error: implicit declaration of function 'fls_long' [-Werror=implicit-function-declaration]
In file included from /usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/atomic.h:20:0,
                 from include/linux/atomic.h:4,
                 from /usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h:11,
                 from include/linux/bitops.h:22,
                 from include/linux/kernel.h:19,
                 from include/linux/sched.h:55,
                 from arch/parisc/kernel/asm-offsets.c:31:
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h: In function 'arch_spin_is_locked':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h:9:2: error: implicit declaration of function '__ldcw_align' [-Werror=implicit-function-declaration]
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h:9:29: warning: initialization makes pointer from integer without a cast [enabled by default]
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h: In function 'arch_spin_lock_flags':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h:22:2: error: implicit declaration of function 'mb' [-Werror=implicit-function-declaration]
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h:23:4: warning: assignment makes pointer from integer without a cast [enabled by default]
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h:24:2: error: implicit declaration of function '__ldcw' [-Werror=implicit-function-declaration]
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h: In function 'arch_spin_unlock':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h:39:4: warning: assignment makes pointer from integer without a cast [enabled by default]
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h: In function 'arch_spin_trylock':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h:50:4: warning: assignment makes pointer from integer without a cast [enabled by default]
In file included from include/linux/atomic.h:4:0,
                 from /usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h:11,
                 from include/linux/bitops.h:22,
                 from include/linux/kernel.h:19,
                 from include/linux/sched.h:55,
                 from arch/parisc/kernel/asm-offsets.c:31:
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/atomic.h: At top level:
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/atomic.h:30:56: error: expected '=', ',', ';', 'asm' or '__attribute__' before '__lock_aligned'
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/atomic.h: In function '__atomic_add_return':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/atomic.h:66:2: error: '__atomic_hash' undeclared (first use in this function)
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/atomic.h:66:2: note: each undeclared identifier is reported only once for each function it appears in
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/atomic.h: In function 'atomic_set':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/atomic.h:77:2: error: '__atomic_hash' undeclared (first use in this function)
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/atomic.h: In function '__atomic64_add_return':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/atomic.h:160:2: error: '__atomic_hash' undeclared (first use in this function)
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/atomic.h: In function 'atomic64_set':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/atomic.h:172:2: error: '__atomic_hash' undeclared (first use in this function)
In file included from include/linux/bitops.h:22:0,
                 from include/linux/kernel.h:19,
                 from include/linux/sched.h:55,
                 from arch/parisc/kernel/asm-offsets.c:31:
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h: In function 'set_bit':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h:37:2: error: '__atomic_hash' undeclared (first use in this function)
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h: In function 'clear_bit':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h:48:2: error: '__atomic_hash' undeclared (first use in this function)
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h: In function 'change_bit':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h:59:2: error: '__atomic_hash' undeclared (first use in this function)
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h: In function 'test_and_set_bit':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h:72:2: error: '__atomic_hash' undeclared (first use in this function)
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h: In function 'test_and_clear_bit':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h:90:2: error: '__atomic_hash' undeclared (first use in this function)
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h: In function 'test_and_change_bit':
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h:107:2: error: '__atomic_hash' undeclared (first use in this function)
In file included from include/linux/bitops.h:22:0,
                 from include/linux/kernel.h:19,
                 from include/linux/sched.h:55,
                 from arch/parisc/kernel/asm-offsets.c:31:
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h: At top level:
/usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h:186:23: error: static declaration of 'fls' follows non-static declaration
include/linux/log2.h:34:9: note: previous implicit declaration of 'fls' was here
In file included from /usr/src/linux-3.4-rc5-fast/arch/parisc/include/asm/bitops.h:214:0,
                 from include/linux/bitops.h:22,
                 from include/linux/kernel.h:19,
                 from include/linux/sched.h:55,
                 from arch/parisc/kernel/asm-offsets.c:31:
include/asm-generic/bitops/fls64.h:26:28: error: static declaration of 'fls64' follows non-static declaration
include/linux/log2.h:42:9: note: previous implicit declaration of 'fls64' was here
In file included from include/linux/kernel.h:19:0,
                 from include/linux/sched.h:55,
                 from arch/parisc/kernel/asm-offsets.c:31:
include/linux/bitops.h:160:24: error: conflicting types for 'fls_long'
include/linux/log2.h:63:16: note: previous implicit declaration of 'fls_long' was here
cc1: some warnings being treated as errors
make[1]: *** [arch/parisc/kernel/asm-offsets.s] Error 1
make: *** [prepare0] Error 2
make: *** Waiting for unfinished jobs....

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
 arch/parisc/include/asm/barrier.h   |    2 ++
 arch/parisc/include/asm/processor.h |    3 +--
 arch/parisc/include/asm/spinlock.h  |    3 ++-
 3 files changed, 5 insertions(+), 3 deletions(-)

Index: linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h
===================================================================
--- linux-3.4-rc5-fast.orig/arch/parisc/include/asm/spinlock.h	2012-05-03 23:52:36.000000000 +0200
+++ linux-3.4-rc5-fast/arch/parisc/include/asm/spinlock.h	2012-05-03 23:58:09.000000000 +0200
@@ -1,8 +1,9 @@
 #ifndef __ASM_SPINLOCK_H
 #define __ASM_SPINLOCK_H
 
-#include <asm/processor.h>
+#include <asm/barrier.h>
 #include <asm/spinlock_types.h>
+#include <asm/ldcw.h>
 
 static inline int arch_spin_is_locked(arch_spinlock_t *x)
 {
Index: linux-3.4-rc5-fast/arch/parisc/include/asm/barrier.h
===================================================================
--- linux-3.4-rc5-fast.orig/arch/parisc/include/asm/barrier.h	2012-05-03 23:52:36.000000000 +0200
+++ linux-3.4-rc5-fast/arch/parisc/include/asm/barrier.h	2012-05-04 23:49:47.000000000 +0200
@@ -32,4 +32,6 @@
 
 #define set_mb(var, value)		do { var = value; mb(); } while (0)
 
+#define cpu_relax()     __asm__ __volatile__("":::"memory")
+
 #endif /* __PARISC_BARRIER_H */
Index: linux-3.4-rc5-fast/arch/parisc/include/asm/processor.h
===================================================================
--- linux-3.4-rc5-fast.orig/arch/parisc/include/asm/processor.h	2012-05-03 23:52:36.000000000 +0200
+++ linux-3.4-rc5-fast/arch/parisc/include/asm/processor.h	2012-05-03 23:58:09.000000000 +0200
@@ -17,6 +17,7 @@
 #include <asm/ptrace.h>
 #include <asm/types.h>
 #include <asm/percpu.h>
+#include <asm/barrier.h>
 
 #endif /* __ASSEMBLY__ */
 
@@ -338,8 +339,6 @@ extern unsigned long get_wchan(struct ta
 #define KSTK_EIP(tsk)	((tsk)->thread.regs.iaoq[0])
 #define KSTK_ESP(tsk)	((tsk)->thread.regs.gr[30])
 
-#define cpu_relax()	barrier()
-
 /* Used as a macro to identify the combined VIPT/PIPT cached
  * CPUs which require a guarantee of coherency (no inequivalent
  * aliases with different data, whether clean or not) to operate */

From - Thu Nov 08 21:08:08 2018
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X-Mozilla-Keys:                                                                                 
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] Revert 5dd5bc40f3b6e0ccdaad948dbadc94ad0906cb25
Date: Fri, 4 May 2012 23:04:40 -0400 (EDT)
Lines: 86
Approved: news@gmane.org
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
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Hi

This patch reverts commit 5dd5bc40f3b6e0ccdaad948dbadc94ad0906cb25.

The commit 5dd5bc40f3b6e0ccdaad948dbadc94ad0906cb25 causes system lockup 
when pdc is used as a boot console.

The kernel boots, but it locks up when transferring control to userspace 
--- the message "INIT: version 2.86 booting" is not printed and the 
computer halts. With the patch reverted, the system starts normally on 
pdc.

Mikulas

---

diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 4f00459..d14e20f 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -92,11 +92,10 @@ static int pdc_console_setup(struct console *co, char *options)
 
 static void pdc_console_poll(unsigned long unused);
 static DEFINE_TIMER(pdc_console_timer, pdc_console_poll, 0, 0);
-static struct tty_port tty_port;
 
 static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp)
 {
-	tty_port_tty_set(&tty_port, tty);
+
 	mod_timer(&pdc_console_timer, jiffies + PDC_CONS_POLL_DELAY);
 
 	return 0;
@@ -104,10 +103,8 @@ static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp)
 
 static void pdc_console_tty_close(struct tty_struct *tty, struct file *filp)
 {
-	if (!tty->count) {
+	if (!tty->count)
 		del_timer_sync(&pdc_console_timer);
-		tty_port_tty_set(&tty_port, NULL);
-	}
 }
 
 static int pdc_console_tty_write(struct tty_struct *tty, const unsigned char *buf, int count)
@@ -126,6 +123,8 @@ static int pdc_console_tty_chars_in_buffer(struct tty_struct *tty)
 	return 0; /* no buffer */
 }
 
+static struct tty_driver *pdc_console_tty_driver;
+
 static const struct tty_operations pdc_console_tty_ops = {
 	.open = pdc_console_tty_open,
 	.close = pdc_console_tty_close,
@@ -136,8 +135,10 @@ static const struct tty_operations pdc_console_tty_ops = {
 
 static void pdc_console_poll(unsigned long unused)
 {
+
 	int data, count = 0;
-	struct tty_struct *tty = tty_port_tty_get(&tty_port);
+
+	struct tty_struct *tty = pdc_console_tty_driver->ttys[0];
 
 	if (!tty)
 		return;
@@ -153,14 +154,10 @@ static void pdc_console_poll(unsigned long unused)
 	if (count)
 		tty_flip_buffer_push(tty);
 
-	tty_kref_put(tty);
-
 	if (pdc_cons.flags & CON_ENABLED)
 		mod_timer(&pdc_console_timer, jiffies + PDC_CONS_POLL_DELAY);
 }
 
-static struct tty_driver *pdc_console_tty_driver;
-
 static int __init pdc_console_tty_driver_init(void)
 {
 	int err;
@@ -185,8 +182,6 @@ static int __init pdc_console_tty_driver_init(void)
 	printk(KERN_INFO "The PDC console driver is still registered, removing CON_BOOT flag\n");
 	pdc_cons.flags &= ~CON_BOOT;
 
-	tty_port_init(&tty_port);

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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: 5fbd036b552f633abb394a319f7c62a5c86a9cd7 breaks PA-RISC boot
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Hi

Your patch 5fbd036b552f633abb394a319f7c62a5c86a9cd7 breaks PA-RISC boot. I 
have a dual-core PA-8800. With the patch applied, the kernel crashes with 
these messages. The timer structures are apparently corrupted, as the 
timer sees a negative amount of delayed cycles:

Command line for kernel: 'root=/dev/sda5 console=ttyB0 HOME=/ 
palo_kernel=2/vmlinux-3.4.0-rc5'
Selected kernel: /vmlinux-3.4.0-rc5 from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 4960256 mediaptr 0x1000
Segment 1 load 007dd320 size 597536 mediaptr 0x4bc320
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Linux version 3.4.0-rc5 (root@phoebe) (gcc version 4.6.3 
(GCC) ) #226 SMP PREEMPT Sat May 5 00:34:33 CEST 2012
[    0.000000] unwind_init: start = 0x404ef000, end = 0x4051bfb0, entries 
= 11515
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00008920 00000491 00000000 00000002 56bbf1abce93405d 
100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000302
[    0.000000] CPUID vers 20 rev 5 (0x00000285)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/785/C8000
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   
1024 MB
[    0.000000]  1) Start 0x0000004040000000 End 0x00000040bfdfffff Size   
2046 MB
[    0.000000] Total Memory: 3070 MB
[    0.000000] PERCPU: Embedded 10 pages/cpu @0000000041baa000 s8512 r8192 
d24256 u40960
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 2 zonelists in Zone order, mobility grouping on.  
Total pages: 775175
[    0.000000] Kernel command line: root=/dev/sda5 console=ttyB0 HOME=/ 
palo_kernel=2/vmlinux-3.4.0-rc5
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 
bytes)
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 
bytes) [    0.000000] Memory: 3080464k/3143680k available (3351k kernel 
code, 63216k reserved, 1442k data, 160k init)
[    0.000000] virtual kernel memory layout:
[    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   
(1007 MB)[    0.000000]     memory  : 0x0000000040000000 - 
0x00000040ffe00000   (265214 MB)
[    0.000000]       .init : 0x0000000040848000 - 0x0000000040870000   ( 
160 kB)[    0.000000]       .data : 0x0000000040445c28 - 
0x00000000405ae5d0   (1442 kB)[    0.000000]       .text : 
0x0000000040100000 - 0x0000000040445c28   (3351 kB)[    0.000000] 
Preemptible hierarchical RCU implementation.
[    0.000000] NR_IRQS:80
[    0.000000] Console: colour dummy device 160x64
[    0.060000] Calibrating delay loop... 1797.32 BogoMIPS (lpj=8986624)
[    0.190000] pid_max: default: 32768 minimum: 301
[    0.250000] Mount-cache hash table entries: 256
[    0.340000] Brought up 1 CPUs
[    0.380000] NET: Registered protocol family 16
[    0.440000] Searching for devices...
[    0.590000] Found devices:
[    0.620000] 1. Unknown machine at 0xfffffffffe780000 [128] { 0, 0x0, 
0x892, 0x00004 }
[    0.730000] 2. Unknown machine at 0xfffffffffe781000 [129] { 0, 0x0, 
0x892, 0x00004 }
[    0.830000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0b6, 
0x00009 }
[    0.920000] 4. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 
0x0, 0x880, 0x0000c }
[    1.040000] 5. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 
0x0, 0x783, 0x0000a }
[    1.140000] 6. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 
0x0, 0x783, 0x0000a }
[    1.250000] 7. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 
0x0, 0x783, 0x0000a }
[    1.360000] 8. Quicksilver AGP Bridge at 0xfffffffffed28000 [0/4] { 13, 
0x0, 0x784, 0x0000a }
[    1.480000] 9. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 
0x004, 0x000c0 }
[    1.580000] 10. unknown device at 0xfffffff0f05e0000 [17] { 10, 0x0, 
0x076, 0x000ad }
[    1.690000] 11. unknown device at 0xfffffff0f05e2000 [18] { 10, 0x0, 
0x076, 0x000ad }
[    1.790000] Enabling PDC_PAT chassis codes support v0.05
[    2.390000] Releasing cpu 1 now, hpa=fffffffffe781000
[    2.500000] FP[1] enabled: Rev 1 Model 20
[    2.500000] CPU(s): 2 x PA8900 (Shortfin) at 900.000000 MHz
[    2.630000] Setting cache flush threshold to c0000 (2 CPUs online)
[    2.840000] SBA found Pluto 2.3 at 0xfffffffffed00000
[    2.920000] Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
[    3.010000] LBA 0:0: PCI host bridge to bus 0000:00
[    3.080000] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    3.160000] pci_bus 0000:00: root bus resource [mem 
0xffffffff80000000-0xffffffff8fffffff] (bus address 
[0x80000000-0x8fffffff])
[    3.320000] pci_bus 0000:00: root bus resource [mem 
0xffffff0000000000-0xffffff0fffffffff]
[    3.430000] Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
[    3.520000] LBA 0:2: PCI host bridge to bus 0000:40
[    3.590000] pci_bus 0000:40: root bus resource [io  0x10000-0x1ffff] 
(bus address [0x0000-0xffff])
[    3.710000] pci_bus 0000:40: root bus resource [mem 
0xffffffffa0000000-0xffffffffafffffff] (bus address 
[0xa0000000-0xafffffff])
[    3.860000] pci_bus 0000:40: root bus resource [mem 
0xffffff2000000000-0xffffff2fffffffff]
[    3.970000] Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
[    4.070000] LBA 0:3: PCI host bridge to bus 0000:60
[    4.140000] pci_bus 0000:60: root bus resource [io  0x20000-0x2ffff] 
(bus address [0x0000-0xffff])
[    4.260000] pci_bus 0000:60: root bus resource [mem 
0xffffffffb0000000-0xffffffffbfffffff] (bus address 
[0xb0000000-0xbfffffff])
[    4.410000] pci_bus 0000:60: root bus resource [mem 
0xffffff3000000000-0xffffff3fffffffff]
[    4.530000] Quicksilver version TR1.0 (0x10) found at 
0xfffffffffed28000
[    4.630000] LBA 0:4: PCI host bridge to bus 0000:80
[    4.690000] pci_bus 0000:80: root bus resource [io  0x30000-0x3ffff] 
(bus address [0x0000-0xffff])
[    4.810000] pci_bus 0000:80: root bus resource [mem 
0xffffffffc0000000-0xffffffffcfffffff] (bus address 
[0xc0000000-0xcfffffff])
[    4.970000] pci_bus 0000:80: root bus resource [mem 
0xffffff4000000000-0xffffff4fffffffff]
[    5.150000] powersw: Soft power switch at 0xfffffff0f042e278 enabled.
[    5.240000] bio: create slab <bio-0> at 0
[    5.290000] vgaarb: device added: 
PCI:0000:80:00.0,decodes=io+mem,owns=io+mem,locks=none
[    5.400000] vgaarb: loaded
[    5.440000] vgaarb: bridge control possible 0000:80:00.0
[    5.510000] SCSI subsystem initialized
[    5.560000] usbcore: registered new interface driver usbfs
[    5.630000] usbcore: registered new interface driver hub
[    5.700000] usbcore: registered new device driver usb
[    5.780000] NET: Registered protocol family 2
[    5.840000] IP route cache hash table entries: 131072 (order: 8, 
1048576 bytes)
[    5.940000] TCP established hash table entries: 262144 (order: 10, 
4194304 bytes)
[    6.040000] TCP bind hash table entries: 65536 (order: 8, 1048576 
bytes)
[    6.130000] TCP: Hash tables configured (established 262144 bind 65536)
[    6.220000] TCP: reno registered
[    6.260000] UDP hash table entries: 2048 (order: 5, 131072 bytes)
[    6.350000] UDP-Lite hash table entries: 2048 (order: 5, 131072 bytes)
[    6.470000] timer_interrupt(CPU 0): delayed! cycles FFFFFFFFFFA7F011 
rem 4062EF  next/now 1C9500D655/1C94C07366
[2049638236.880448] timer_interrupt(CPU 0): delayed! cycles 1CB712F9E rem 
49DAA2
  next/now 1E60BBE095/1E607205F3
[2049638236.880448] INFO: rcu_sched detected stalls on CPUs/tasks: { 1} 
(detected by 0, t=2049638230796 jiffies)
[2049638236.880448] INFO: Stall ended before state dump start
[2049638245.450448] timer_interrupt(CPU 0): delayed! cycles 2EEDB3A63 rem 
29839D
  next/now 214FC09E95/214F971AF8


When I put debug messages to smp_cpu_init and smp_callin in 
arch/parisc/kernel/smp.c, it crashes differently, this time it tries to 
run some corrupted task on the second core and it crashes in 
kthread_should_stop:

Command line for kernel: 'root=/dev/sda5 console=ttyB0 HOME=/ 
palo_kernel=2/vmlinux-3.4.0-rc5'
Selected kernel: /vmlinux-3.4.0-rc5 from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 4960256 mediaptr 0x1000
Segment 1 load 007dd320 size 597536 mediaptr 0x4bc320
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Linux version 3.4.0-rc5 (root@phoebe) (gcc version 4.6.3 
(GCC) ) #272 SMP PREEMPT Sat May 5 04:39:10 CEST 2012
[    0.000000] unwind_init: start = 0x404ef000, end = 0x4051bfb0, entries 
= 11515
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00008920 00000491 00000000 00000002 56bbf1abce93405d 
100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000302
[    0.000000] CPUID vers 20 rev 5 (0x00000285)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/785/C8000
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   
1024 MB
[    0.000000]  1) Start 0x0000004040000000 End 0x00000040bfdfffff Size   
2046 MB
[    0.000000] Total Memory: 3070 MB
[    0.000000] PERCPU: Embedded 10 pages/cpu @0000000041baa000 s8512 r8192 
d24256 u40960
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 2 zonelists in Zone order, mobility grouping on.  
Total pages: 775175
[    0.000000] Kernel command line: root=/dev/sda5 console=ttyB0 HOME=/ 
palo_kernel=2/vmlinux-3.4.0-rc5
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 
bytes)
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 
bytes) [    0.000000] Memory: 3080464k/3143680k available (3351k kernel 
code, 63216k reserved, 1442k data, 160k init)
[    0.000000] virtual kernel memory layout:
[    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   
(1007 MB)[    0.000000]     memory  : 0x0000000040000000 - 
0x00000040ffe00000   (265214 MB)
[    0.000000]       .init : 0x0000000040848000 - 0x0000000040870000   ( 
160 kB)[    0.000000]       .data : 0x0000000040445c28 - 
0x00000000405ae5d0   (1442 kB)[    0.000000]       .text : 
0x0000000040100000 - 0x0000000040445c28   (3351 kB)[    0.000000] 
Preemptible hierarchical RCU implementation.
[    0.000000] NR_IRQS:80
[    0.000000] Console: colour dummy device 160x64
[    0.060000] Calibrating delay loop... 1797.32 BogoMIPS (lpj=8986624)
[    0.190000] pid_max: default: 32768 minimum: 301
[    0.250000] Mount-cache hash table entries: 256
[    0.340000] Brought up 1 CPUs
[    0.380000] NET: Registered protocol family 16
[    0.440000] Searching for devices...
[    0.590000] Found devices:
[    0.620000] 1. Unknown machine at 0xfffffffffe780000 [128] { 0, 0x0, 
0x892, 0x00004 }
[    0.730000] 2. Unknown machine at 0xfffffffffe781000 [129] { 0, 0x0, 
0x892, 0x00004 }
[    0.830000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0b6, 
0x00009 }
[    0.920000] 4. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 
0x0, 0x880, 0x0000c }
[    1.040000] 5. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 
0x0, 0x783, 0x0000a }
[    1.140000] 6. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 
0x0, 0x783, 0x0000a }
[    1.250000] 7. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 
0x0, 0x783, 0x0000a }
[    1.360000] 8. Quicksilver AGP Bridge at 0xfffffffffed28000 [0/4] { 13, 
0x0, 0x784, 0x0000a }
[    1.480000] 9. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 
0x004, 0x000c0 }
[    1.580000] 10. unknown device at 0xfffffff0f05e0000 [17] { 10, 0x0, 
0x076, 0x000ad }
[    1.690000] 11. unknown device at 0xfffffff0f05e2000 [18] { 10, 0x0, 
0x076, 0x000ad }
[    1.790000] Enabling PDC_PAT chassis codes support v0.05
[    2.390000] Releasing cpu 1 now, hpa=fffffffffe781000
[    2.500000] FP[1] enabled: Rev 1 Model 20
[    2.500000] 
blablablablablablablablablablablablablablablablablablablablablablablablablabla
[    2.500000] CPU(s): 2 x PA8900 (Shortfin) at 900.000000 MHz
[    2.740000] 
blablablablablablablablablablablablablablablablablablablablablablablablablabla
[    2.850000] 
blablablablablablablablablablablablablablablablablablablablablablablablablabla
[    2.960000] 
blablablablablablablablablablablablablablablablablablablablablablablablablabla
[    3.070000] 
blablablablablablablablablablablablablablablablablablablablablablablablablabla
[    3.180000] 
blablablablablablablablablablablablablablablablablablablablablablablablablabla
[    3.290000] 
blablablablablablablablablablablablablablablablablablablablablablablablablabla
[    3.400000] 
blablablablablablablablablablablablablablablablablablablablablablablablablabla
[    3.510000] 
blablablablablablablablablablablablablablablablablablablablablablablablablabla
[    3.620000] 
blablablablablablablablablablablablablablablablablablablablablablablablablabla
[    3.730000] test1
[    3.750000] test2
[    3.780000] test3
[    3.810000] test4
[    3.830000] test5
[    3.860000] test6
[    3.880000] test7
[    3.910000] test8
[    3.930000] test9
[    3.990000] Backtrace:
[    4.020000]  [<00000000401973a4>] cpu_stopper_thread+0x7c/0x248
[    4.100000]  [<0000000040167a18>] kthread+0xd8/0xe8
[    4.160000]  [<000000004010407c>] ret_from_kernel_thread+0x24/0x40
[    4.240000]
[    4.260000]
[    4.280000] Bad Address (null pointer deref?): Code=15 
regs=000000007fcd0330 (Addr=000007fffffffff0)
[    4.400000]
[    4.420000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[    4.490000] PSW: 00001000000001001111111100001111 Not tainted
[    4.560000] r00-03  000000ff0804ff0f 0000000040846360 00000000401973a4 
000000007fcd0300
[    4.670000] r04-07  0000000040828b60 0000000041bb49b0 0000000041bb49c0 
000000004086e6c0
[    4.780000] r08-11  0000000000000001 0000000041bb49c0 0000000000000001 
0000000000000001
[    4.880000] r12-15  0000000040846b60 0000000040837b60 0000000040837b60 
000000004086e6c0
[    4.990000] r16-19  0000000040846360 000000007fc5ea10 0000000000000000 
000000000800000f
[    5.100000] r20-23  0000000000000001 000000000800000e 000000000800000e 
0000000000000000
[    5.200000] r24-27  0000000000000001 000000007fcb47d8 0000000041bab6c0 
0000000040828b60
[    5.310000] r28-31  0000000000000000 000000007fcd0300 000000007fcd0330 
0000000000000001
[    5.420000] sr00-03  0000000000000000 0000000000000000 0000000000000000 
0000000000000000
[    5.530000] sr04-07  0000000000000000 0000000000000000 0000000000000000 
0000000000000000
[    5.630000]
[    5.650000] IASQ: 0000000000000000 0000000000000000 IAOQ: 
000000004016742c 0000000040167430
[    5.760000]  IIR: 0f81109c    ISR: 000000003ffff800  IOR: 
000007fffffffff0
[    5.860000]  CPU:        0   CR30: 000000007fc64000 CR31: 
ffffffffffffffff
[    5.950000]  ORIG_R28: 000000004011bd5c
[    6.000000]  IAOQ[0]: kthread_should_stop+0xc/0x18
[    6.060000]  IAOQ[1]: kthread_should_stop+0x10/0x18
[    6.130000]  RP(r2): cpu_stopper_thread+0x7c/0x248
[    6.190000] Backtrace:
[    6.220000]  [<00000000401973a4>] cpu_stopper_thread+0x7c/0x248
[    6.300000]  [<0000000040167a18>] kthread+0xd8/0xe8
[    6.370000]  [<000000004010407c>] ret_from_kernel_thread+0x24/0x40
[    6.450000]
[    6.610000] Kernel panic - not syncing: Bad Address (null pointer 
deref?)


I tried to put set_cpu_active(cpunum, true) in the startup functions for 
the secondary processor (smp_callin, smp_cpu_init) to see if the processor 
cannot start if it not active. I actually discovered that it is timing 
dependent (if I put set_cpu_active just after set_cpu_online in 
smp_cpu_init, it works, if I put set_cpu_active to be executed SOME TIME 
after set_cpu_online, it crashes). So the secondary CPU doesn't have 
problem with not being marked active, it is actually the main CPU that 
causes the crash if the secondary CPU is online and inactive.

I couldn't find out what code executing on the main CPU has problems with 
online/inactive secondary CPU. Do you have any ideas?

When I revert your patch, the machine boots and works correctly:

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index b1ccce8..9554512 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5410,7 +5410,7 @@ static int __cpuinit sched_cpu_active(struct notifier_block *nfb,
 				      unsigned long action, void *hcpu)
 {
 	switch (action & ~CPU_TASKS_FROZEN) {
-	case CPU_STARTING:
+	case CPU_ONLINE:
 	case CPU_DOWN_FAILED:
 		set_cpu_active((long)hcpu, true);
 		return NOTIFY_OK;

Mikulas
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From - Thu Nov 08 21:08:08 2018
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Subject: Re: [PATCH] Fix compile failure on PA-RISC
Date: Sat, 05 May 2012 08:55:37 +0200
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Mikulas Patocka wrote:
> Hi
> 
> This patch fixes compile failure on PA-RISC.
> 
> BTW. if the PA-RISC port is uncompilable for all 3.4-rc versions (and
> contains two other bugs that prevent it from booting) ... does it mean
> that I'm the only one who is using PA-RISC with recent kernel?
> 
> Mikulas
> 
> ---
> 
> Fix compile failure on PA-RISC
> 
> This patch fixes compile error on PA-RISC.
> 
> The problem is this:
> linux/bitops.h includes asm/bitops.h. Through a chain of dependencies
> asm/bitops.h includes asm/page.h and asm/page.h needs function fls and
> others defined in asm/bitops.h and linux/bitops.h --- and these
> functions are not yet defined because the files linux/bitops.h and
> asm/bitops.h hasn't been fully processed.

I've posted a set of patches on 2012-04-21 both on linux-kernel and linux-
parisc, but apart from one ACK I got no reaction.

I did only move the definition of PAGE0 from asm/pdc.h to asm/page.h and fixed 
another bunch of breakage that was detected while fixing this.

Eike
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On 05/05/2012 05:04 AM, Mikulas Patocka wrote:
> Hi
> 
> This patch reverts commit 5dd5bc40f3b6e0ccdaad948dbadc94ad0906cb25.
> 
> The commit 5dd5bc40f3b6e0ccdaad948dbadc94ad0906cb25 causes system lockup 
> when pdc is used as a boot console.
> 
> The kernel boots, but it locks up when transferring control to userspace 
> --- the message "INIT: version 2.86 booting" is not printed and the 
> computer halts. With the patch reverted, the system starts normally on 
> pdc.
...
> --- a/arch/parisc/kernel/pdc_cons.c
> +++ b/arch/parisc/kernel/pdc_cons.c
...
> @@ -104,10 +103,8 @@ static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp)
>  
>  static void pdc_console_tty_close(struct tty_struct *tty, struct file *filp)
>  {
> -	if (!tty->count) {
> +	if (!tty->count)

Heh, I cannot find a bug in the patch proper. However this test is and
always was bogus. Does changing "!tty->count" to "tty->count == 1" help?

>  		del_timer_sync(&pdc_console_timer);
> -		tty_port_tty_set(&tty_port, NULL);
> -	}
>  }
>  
>  static int pdc_console_tty_write(struct tty_struct *tty, const unsigned char *buf, int count)

regards,
-- 
js
suse labs


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On Fri, 4 May 2012 22:58:32 -0400 (EDT)
Mikulas Patocka <mpatocka@redhat.com> wrote:

> Hi
> 
> This patch fixes compile failure on PA-RISC.
> 
> BTW. if the PA-RISC port is uncompilable for all 3.4-rc versions (and 
> contains two other bugs that prevent it from booting) ... does it mean 
> that I'm the only one who is using PA-RISC with recent kernel?


Probably - and if so would you please get the NO_IRQ define fixed because
it seems parisc also has no maintainer any more 8)

Alan
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On Fri, May 4, 2012 at 11:55 PM, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
>
> I did only move the definition of PAGE0 from asm/pdc.h to asm/page.h and fixed
> another bunch of breakage that was detected while fixing this.

I have to say that that sounds like a more natural patch. *Every*
other architecture defines cpu_relax() in <asm/processor.h>, so it
sounds like a bad idea to make PA-RISC any more different than
necessary.

Even if only one or two people actually care.

                     Linus
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On Sat, 5 May 2012, Jiri Slaby wrote:

> On 05/05/2012 05:04 AM, Mikulas Patocka wrote:
> > Hi
> > 
> > This patch reverts commit 5dd5bc40f3b6e0ccdaad948dbadc94ad0906cb25.
> > 
> > The commit 5dd5bc40f3b6e0ccdaad948dbadc94ad0906cb25 causes system lockup 
> > when pdc is used as a boot console.
> > 
> > The kernel boots, but it locks up when transferring control to userspace 
> > --- the message "INIT: version 2.86 booting" is not printed and the 
> > computer halts. With the patch reverted, the system starts normally on 
> > pdc.
> ...
> > --- a/arch/parisc/kernel/pdc_cons.c
> > +++ b/arch/parisc/kernel/pdc_cons.c
> ...
> > @@ -104,10 +103,8 @@ static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp)
> >  
> >  static void pdc_console_tty_close(struct tty_struct *tty, struct file *filp)
> >  {
> > -	if (!tty->count) {
> > +	if (!tty->count)
> 
> Heh, I cannot find a bug in the patch proper. However this test is and
> always was bogus. Does changing "!tty->count" to "tty->count == 1" help?

Yes, it fixes it.

Mikulas

> >  		del_timer_sync(&pdc_console_timer);
> > -		tty_port_tty_set(&tty_port, NULL);
> > -	}
> >  }
> >  
> >  static int pdc_console_tty_write(struct tty_struct *tty, const unsigned char *buf, int count)
> 
> regards,
> -- 
> js
> suse labs
> 
> 

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On Sat, 5 May 2012, Alan Cox wrote:

> On Fri, 4 May 2012 22:58:32 -0400 (EDT)
> Mikulas Patocka <mpatocka@redhat.com> wrote:
> 
> > Hi
> > 
> > This patch fixes compile failure on PA-RISC.
> > 
> > BTW. if the PA-RISC port is uncompilable for all 3.4-rc versions (and 
> > contains two other bugs that prevent it from booting) ... does it mean 
> > that I'm the only one who is using PA-RISC with recent kernel?
> 
> 
> Probably - and if so would you please get the NO_IRQ define fixed because
> it seems parisc also has no maintainer any more 8)
> 
> Alan

What NO_IRQ problem do you mean? There is
#define NO_IRQ          (-1)
in arch/parisc/include/asm/irq.h.

And there are other NO_IRQ definitions in other architectures, some 
defining it to ((unsigned int)(-1)), some to 0xffffffff, some to INT_MAX, 
some to (-1) and some to (0).

Some drivers define NO_IRQ too, if not defined by the architecture.

Mikulas
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On Sat, 5 May 2012, Rolf Eike Beer wrote:

> Mikulas Patocka wrote:
> > Hi
> > 
> > This patch fixes compile failure on PA-RISC.
> > 
> > BTW. if the PA-RISC port is uncompilable for all 3.4-rc versions (and
> > contains two other bugs that prevent it from booting) ... does it mean
> > that I'm the only one who is using PA-RISC with recent kernel?
> > 
> > Mikulas
> > 
> > ---
> > 
> > Fix compile failure on PA-RISC
> > 
> > This patch fixes compile error on PA-RISC.
> > 
> > The problem is this:
> > linux/bitops.h includes asm/bitops.h. Through a chain of dependencies
> > asm/bitops.h includes asm/page.h and asm/page.h needs function fls and
> > others defined in asm/bitops.h and linux/bitops.h --- and these
> > functions are not yet defined because the files linux/bitops.h and
> > asm/bitops.h hasn't been fully processed.
> 
> I've posted a set of patches on 2012-04-21 both on linux-kernel and linux-
> parisc, but apart from one ACK I got no reaction.
> 
> I did only move the definition of PAGE0 from asm/pdc.h to asm/page.h and fixed 
> another bunch of breakage that was detected while fixing this.
> 
> Eike

I acknowledge that your patches work. So send them directly to Linus. I 
think there is not much maintenance being done on PA-RISC.

Mikulas
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On Sat, May 5, 2012 at 11:53 AM, Mikulas Patocka <mpatocka@redhat.com> =
wrote:
>
> What NO_IRQ problem do you mean? There is
> #define NO_IRQ =A0 =A0 =A0 =A0 =A0(-1)
> in arch/parisc/include/asm/irq.h.

That's the one he means.

Switching it to zero and testing that things still work would be apprec=
iated.

Much code already knows that NO_IRQ is supposed to be zero, and
there's tons of drivers that just do the (correct!) "if (!dev->irq)"
kind of thing.

Any architecture that has a non-zero NO_IRQ is basically broken.
Always has been.

                    Linus

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On 5-May-12, at 2:55 PM, Mikulas Patocka wrote:

> I acknowledge that your patches work. So send them directly to  
> Linus. I
> think there is not much maintenance being done on PA-RISC.

James wrote back in March "I haven't yet actually tried git head on  
parisc
(and I won't be able to until I actually get my machines back  
[currently being
shipped across the atlantic]) but if there's a problem it will show up  
quickly:
parisc actually uses cpu hotplug to boot its secondary cpus."

Helge resigned due to lack of time.

This is my understanding as to why there is a maintenance gap.

For what I have been doing, I only use stable kernels.  I'm currently
running 3.3.4.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Fri, 2012-05-04 at 23:26 -0400, Mikulas Patocka wrote:
> Your patch 5fbd036b552f633abb394a319f7c62a5c86a9cd7 breaks PA-RISC boot. I 
> have a dual-core PA-8800. With the patch applied, the kernel crashes with 
> these messages. The timer structures are apparently corrupted, as the 
> timer sees a negative amount of delayed cycles: 

You'll find:

  http://marc.info/?l=linux-parisc&m=133241790810604&w=2

will probably fix the issue.


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On 05/05/2012 10:09 PM, John David Anglin wrote:
> On 5-May-12, at 2:55 PM, Mikulas Patocka wrote:
> 
>> I acknowledge that your patches work. So send them directly to Linus. I
>> think there is not much maintenance being done on PA-RISC.
> 
> James wrote back in March "I haven't yet actually tried git head on parisc
> (and I won't be able to until I actually get my machines back [currently being
> shipped across the atlantic]) but if there's a problem it will show up quickly:
> parisc actually uses cpu hotplug to boot its secondary cpus."

> Helge resigned due to lack of time.

I'm still alive and was still reading the mailing list.
And I'm planning to test some newer kernels very soon again :-)
So, many thanks from my side to everyone who sent patches in the past
(incl. Mikulas, Rolf and others).

Helge
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Linus Torvalds wrote:
> On Sat, May 5, 2012 at 11:53 AM, Mikulas Patocka <mpatocka@redhat.com> 
wrote:
> > What NO_IRQ problem do you mean? There is
> > #define NO_IRQ          (-1)
> > in arch/parisc/include/asm/irq.h.
> 
> That's the one he means.
> 
> Switching it to zero and testing that things still work would be
> appreciated.
> 
> Much code already knows that NO_IRQ is supposed to be zero, and
> there's tons of drivers that just do the (correct!) "if (!dev->irq)"
> kind of thing.
> 
> Any architecture that has a non-zero NO_IRQ is basically broken.
> Always has been.

The stuff in drivers/parisc/gsc.c doesn't look as if it would survive that 
change.

Eike
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On Sat, 2012-05-05 at 23:24 +0200, Helge Deller wrote:
> On 05/05/2012 10:09 PM, John David Anglin wrote:
> > On 5-May-12, at 2:55 PM, Mikulas Patocka wrote:
> > 
> >> I acknowledge that your patches work. So send them directly to Linus. I
> >> think there is not much maintenance being done on PA-RISC.
> > 
> > James wrote back in March "I haven't yet actually tried git head on parisc
> > (and I won't be able to until I actually get my machines back [currently being
> > shipped across the atlantic]) but if there's a problem it will show up quickly:
> > parisc actually uses cpu hotplug to boot its secondary cpus."
> 
> > Helge resigned due to lack of time.
> 
> I'm still alive and was still reading the mailing list.
> And I'm planning to test some newer kernels very soon again :-)
> So, many thanks from my side to everyone who sent patches in the past
> (incl. Mikulas, Rolf and others).

If you could, it would help.  I still have no access to PA systems
(should have mine by next week), but I'm on holiday this week anyway.

James



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> What NO_IRQ problem do you mean? There is
> #define NO_IRQ          (-1)
> in arch/parisc/include/asm/irq.h.

It should be zero ready for us to get rid of it. Aa far as I can tell
pa-risc can just move to 0 without anything breaking. In fact some stuff
like serial port polling on 8250 ports will begin to work if it's done.

> And there are other NO_IRQ definitions in other architectures, some 
> defining it to ((unsigned int)(-1)), some to 0xffffffff, some to INT_MAX, 
> some to (-1) and some to (0).

Yes people are working on removing them all.

Alan
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/13945>

Add the host bridge bus number aperture to the resource list.
Like the MMIO and I/O port apertures, this is used when assigning
resources to hot-added devices or in the case of conflicts.

[bhelgaas: set flags directly, at LBA bus_num init, write changelog]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
CC: Kyle McMartin <kyle@mcmartin.ca>
CC: Helge Deller <deller@gmx.de>
CC: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |   10 ++++++++--
 drivers/parisc/lba_pci.c |    8 ++++++--
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 70517b0..ffddc4f 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -898,6 +898,7 @@ static int __init dino_probe(struct parisc_device *dev)
 	LIST_HEAD(resources);
 	struct pci_bus *bus;
 	unsigned long hpa = dev->hpa.start;
+	int max;
 
 	name = "Dino";
 	if (is_card_dino(&dev->id)) {
@@ -983,6 +984,10 @@ static int __init dino_probe(struct parisc_device *dev)
 	if (dino_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
 
+	dino_dev->hba.bus_num.start = dino_current_bus;
+	dino_dev->hba.bus_num.end = 255;
+	dino_dev->hba.bus_num.flags = IORESOURCE_BUS;
+	pci_add_resource(&resources, &dino_dev->hba.bus_num);
 	/*
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
@@ -998,12 +1003,13 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
-	bus->busn_res.end = pci_scan_child_bus(bus);
+	max = pci_scan_child_bus(bus);
+	pci_bus_update_busn_res_end(bus, max);
 
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
 	 */
-	dino_current_bus = bus->busn_res.end + 1;
+	dino_current_bus = max + 1;
 	pci_bus_assign_resources(bus);
 	pci_bus_add_devices(bus);
 	return 0;
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index cd8f9ce..4f9cf24 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -989,6 +989,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 		case PAT_PBNUM:
 			lba_dev->hba.bus_num.start = p->start;
 			lba_dev->hba.bus_num.end   = p->end;
+			lba_dev->hba.bus_num.flags = IORESOURCE_BUS;
 			break;
 
 		case PAT_LMMIO:
@@ -1366,6 +1367,7 @@ lba_driver_probe(struct parisc_device *dev)
 	void *tmp_obj;
 	char *version;
 	void __iomem *addr = ioremap_nocache(dev->hpa.start, 4096);
+	int max;
 
 	/* Read HW Rev First */
 	func_class = READ_REG32(addr + LBA_FCLASS);
@@ -1502,6 +1504,8 @@ lba_driver_probe(struct parisc_device *dev)
 	if (lba_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
 
+	pci_add_resource(&resources, &lba_dev->hba.bus_num);
+
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
 		pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
@@ -1511,7 +1515,7 @@ lba_driver_probe(struct parisc_device *dev)
 		return 0;
 	}
 
-	lba_bus->busn_res.end = pci_scan_child_bus(lba_bus);
+	max = pci_scan_child_bus(lba_bus);
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
@@ -1541,7 +1545,7 @@ lba_driver_probe(struct parisc_device *dev)
 		lba_dev->flags |= LBA_FLAG_SKIP_PROBE;
 	}
 
-	lba_next_bus = lba_res->busn_res.end + 1;
+	lba_next_bus = max + 1;
 	pci_bus_add_devices(lba_bus);
 
 	/* Whew! Finally done! Tell services we got this one covered. */
-- 
1.7.7


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From: Vincent <vincent.stehle@laposte.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
Date: Tue, 08 May 2012 23:59:56 +0200
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Hi parisc folks,

I have noticed that the mainline kernel won't boot any more on my
hp712/100, starting with v2.6.39. It panics in
flush_instruction_cache_local.

After bisection, it appeared the culprit was commit
f311847c2fcebd81912e2f0caf8a461dec28db41 "parisc: flush pages through
tmpalias space". Reverting it made v2.6.39 boot again.

=46or v3.0, I needed to revert a few more patches simply to allow
reverting the original bad commit. And starting with v3.2, I needed to
add the patch from John David Anglin to adjust section arrangement, too
(see http://www.spinics.net/lists/linux-parisc/msg04091.html).

Here is the final patch "pile" I need on v3.4-rc6 to make it boot prope=
rly:

 <patch from John David Anglin>
 Revert f311847c "parisc: flush pages through tmpalias space"
 Revert 8b4ae334 "eliminate special FLUSH flag from page table"
 Revert b54cd0d5 "[PARISC] fix pacache .size with new binutils"
 Revert b7d45818 "[PARISC] prevent speculative re-read on cache flush"

If someone manages to repair the cache routines, I would be glad to tes=
t
the patches :)

Best regards,

--=20
Vincent Stehl=E9


Kernel panic when booting v3.4-rc6 with only the patch from John David
Anglin:

=2E..
[   16.032000] Freeing unused kernel memory: 252k freed
[   16.096000]       _______________________________
[   16.096000]      < Your System ate a SPARC! Gah! >
[   16.096000]       -------------------------------
[   16.096000]              \   ^__^
[   16.096000]                  (__)\       )\/\
[   16.096000]                   U  ||----w |
[   16.096000]                      ||     ||
[   16.456000] swapper (pid 1): Illegal instruction (code 8)
[   16.520000]
[   16.536000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   16.592000] PSW: 00000000000000000000000000000000 Not tainted
[   16.660000] r00-03  00000000 00000003 101122b4 105e7b40
[   16.724000] r04-07  105da000 0000000f ffeffff6 00000001
[   16.784000] r08-11  0f2ff000 0f000000 00000001 00000001
[   16.848000] r12-15  ffeffff6 00000017 16633000 16646ffc
[   16.912000] r16-19  00000000 00000023 16633000 17430000
[   16.972000] r20-23  00000000 105e7b60 00000001 00000020
[   17.036000] r24-27  00000000 00000000 0000bb40 104ee000
[   17.096000] r28-31  0f2ff000 00000001 17430740 10268e50
[   17.160000] sr00-03  00000000 00000000 00000000 00000000
[   17.224000] sr04-07  00000000 00000000 00000000 00000000
[   17.288000]
[   17.304000] IASQ: 00000000 00000000 IAOQ: 101009ec 101009f0
[   17.372000]  IIR: 0f801280    ISR: 00000000  IOR: 0f2ff000
[   17.436000]  CPU:        0   CR30: 17430000 CR31: 00000002
[   17.500000]  ORIG_R28: 00000012
[   17.540000]  IAOQ[0]: __clear_user_page_asm+0x20/0x70
[   17.600000]  IAOQ[1]: __clear_user_page_asm+0x24/0x70
[   17.660000]  RP(r2): clear_user_page+0x38/0x50
[   17.712000] Backtrace:
[   17.740000]  [<101122b4>] clear_user_page+0x38/0x50
[   17.800000]  [<1019c37c>] handle_pte_fault+0x1e0/0x7a8
[   17.860000]  [<1019ca08>] handle_mm_fault+0xc4/0xf4
[   17.916000]  [<1019d208>] __get_user_pages+0x18c/0x370
[   17.980000]  [<101bcc08>] get_arg_page+0x5c/0x108
[   18.036000]  [<101bcecc>] copy_strings+0x114/0x25c
[   18.092000]  [<101bd030>] copy_strings_kernel+0x1c/0x30
[   18.156000]  [<101be408>] do_execve+0x1f4/0x370
[   18.208000]  [<10117f0c>] sys_execve+0x44/0x70
[   18.260000]  [<10103084>] __execve+0x20/0x34
[   18.312000]  [<1012a098>] vprintk+0x39c/0x3f0
[   18.364000]  [<1010e074>] printk+0x24/0x30
[   18.412000]  [<101110cc>] init_post+0x6c/0x148
[   18.468000]  [<1059d624>] kernel_init+0x218/0x250
[   18.524000]
[   18.540000] Backtrace:
[   18.568000]  [<10113124>] die_if_kernel+0x138/0x1b0
[   18.628000]  [<10113374>] handle_interruption+0x1d8/0x6d8
[   18.692000]  [<10104078>] intr_check_sig+0x0/0x34
[   18.748000]  [<10174e28>] rcu_irq_exit+0x50/0x60
[   18.804000]  [<101009f0>] __clear_user_page_asm+0x24/0x70
[   18.868000]
[   18.884000] ---[ end trace 1a0bf3a13bdb1148 ]---
[   18.940000] note: swapper[1] exited with preempt_count 1
[   19.004000] Kernel panic - not syncing: Attempted to kill init!
exitcode=3D0x0000000b
--
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From: Mikulas Patocka <mpatocka@redhat.com>
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On Sat, 5 May 2012, Linus Torvalds wrote:

> On Sat, May 5, 2012 at 11:53 AM, Mikulas Patocka <mpatocka@redhat.com> wr=
ote:
> >
> > What NO_IRQ problem do you mean? There is
> > #define NO_IRQ =A0 =A0 =A0 =A0 =A0(-1)
> > in arch/parisc/include/asm/irq.h.
>=20
> That's the one he means.
>=20
> Switching it to zero and testing that things still work would be apprecia=
ted.

It works, but there is plenty of interrupt controllers on PC-RISC and I=20
can only test it on C8000 with IO-SAPIC. I don't know if irq 0 is used on=
=20
some PA-RISC interrupt controller. It would be best if James Bottomley=20
tests it on his set of machines.

> Much code already knows that NO_IRQ is supposed to be zero, and
> there's tons of drivers that just do the (correct!) "if (!dev->irq)"
> kind of thing.
>=20
> Any architecture that has a non-zero NO_IRQ is basically broken.
> Always has been.
>=20
>                     Linus

And what about x86? --- irq 0 is used for timer and there is
void __init setup_default_timer_irq(void)
{
        setup_irq(0, &irq0);
}
in arch/x86/kernel/time.c.

Mikulas
--185242623-1738749370-1336532840=:16707--

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Subject: [PATCH] 5fbd036b552f633abb394a319f7c62a5c86a9cd7 breaks PA-RISC boot
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On Sat, 5 May 2012, Peter Zijlstra wrote:

> On Fri, 2012-05-04 at 23:26 -0400, Mikulas Patocka wrote:
> > Your patch 5fbd036b552f633abb394a319f7c62a5c86a9cd7 breaks PA-RISC boot. I 
> > have a dual-core PA-8800. With the patch applied, the kernel crashes with 
> > these messages. The timer structures are apparently corrupted, as the 
> > timer sees a negative amount of delayed cycles: 
> 
> You'll find:
> 
>   http://marc.info/?l=linux-parisc&m=133241790810604&w=2
> 
> will probably fix the issue.

I confirm that the patch fixes the problem.

So let's send it to Linus so that 3.4 will boot on PA-RISC.

Mikulas

---

The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Mikulas Patocka <mpatocka@redhat.com>
---

 arch/parisc/kernel/smp.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Index: linux-3.4-rc6-fast/arch/parisc/kernel/smp.c
===================================================================
--- linux-3.4-rc6-fast.orig/arch/parisc/kernel/smp.c	2012-05-09 04:54:35.000000000 +0200
+++ linux-3.4-rc6-fast/arch/parisc/kernel/smp.c	2012-05-09 04:55:24.000000000 +0200
@@ -295,8 +295,13 @@ smp_cpu_init(int cpunum)
 
 		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
 		machine_halt();
-	}  
+	}
+
+	notify_cpu_starting(cpunum);
+
+	ipi_call_lock();
 	set_cpu_online(cpunum, true);
+	ipi_call_unlock();
 
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);
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Vincent wrote:
> Hi parisc folks,
> 
> I have noticed that the mainline kernel won't boot any more on my
> hp712/100, starting with v2.6.39. It panics in
> flush_instruction_cache_local.

See the mail thread "Boot error using 3.2.1: swapper (pid 1): Illegal 
instruction (code 8)" I started when I first hit this on my 705. But James 
doesn't care.

Eike
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> And what about x86? --- irq 0 is used for timer and there is
> void __init setup_default_timer_irq(void)
> {
>         setup_irq(0, &irq0);
> }

That's an internal curio not exposed outside (or at least not in a way
that matters).

Alan
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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This is a multi-part message in MIME format.
--------------030502030704090705020604
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On 5/9/2012 2:53 AM, Rolf Eike Beer wrote:
> Vincent wrote:
>> Hi parisc folks,
>>
>> I have noticed that the mainline kernel won't boot any more on my
>> hp712/100, starting with v2.6.39. It panics in
>> flush_instruction_cache_local.
> See the mail thread "Boot error using 3.2.1: swapper (pid 1): Illegal
> instruction (code 8)" I started when I first hit this on my 705. But James
> doesn't care.
There is a fair chance that the patch posted here 
<http://www.spinics.net/lists/linux-parisc/msg04068.html>
would fix the boot issue.   However, I recently discovered a build issue 
on non SMP configurations.  Attached
is an updated version.   It applies against 3.3.4.

It has been tested extensively on rp3440.

clear_user_page does not use the tmpalias region.  I believe the problem 
with the current implementation
is that the TLB setup can be clobbered if __clear_user_page_asm is 
reentered.

Signed-off-by: John David Anglin <dave.anglin@bell.net>

Dave

-- 
John David Anglin    dave.anglin@bell.net


--------------030502030704090705020604
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diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index da601dd..08f85dc 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -115,7 +115,9 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 {
 	if (PageAnon(page)) {
 		flush_tlb_page(vma, vmaddr);
+		preempt_disable();
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
+		preempt_enable();
 	}
 }
 
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index a84cc1f..9400a62 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -21,15 +21,27 @@
 #include <asm/types.h>
 #include <asm/cache.h>
 
-#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define clear_page(page)	clear_page_asm((void *)(page))
+#define copy_page(to,from)	copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
+void clear_page_asm(void *page);
+void copy_page_asm(void *to, void *from);
+void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+
+// #define CONFIG_PARISC_TMPALIAS
+
+#ifdef CONFIG_PARISC_TMPALIAS
+void clear_user_highpage(struct page *page, unsigned long vaddr);
+#define clear_user_highpage clear_user_highpage
+struct vm_area_struct;
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma);
+#define __HAVE_ARCH_COPY_USER_HIGHPAGE
+#endif
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 22dadeb..100f409 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -12,11 +12,10 @@
 
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
+#include <linux/mm_types.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
-struct vm_area_struct;
-
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -40,7 +39,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm,addr,ptep, pteval)                        \
+        do{                                                     \
+                set_pte(ptep,pteval);                           \
+                purge_tlb_entries(mm,addr);                     \
+        } while(0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -460,10 +466,13 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #ifdef CONFIG_SMP
 	unsigned long new, old;
 
+	/* ??? This might be racy because the page table updates in
+	   entry.S don't use the same lock.  */
 	do {
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 83335f3..f31edc2 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -268,9 +268,11 @@ static inline void
 __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 		   unsigned long physaddr)
 {
+	preempt_disable();
 	flush_dcache_page_asm(physaddr, vmaddr);
 	if (vma->vm_flags & VM_EXEC)
 		flush_icache_page_asm(physaddr, vmaddr);
+	preempt_enable();
 }
 
 void flush_dcache_page(struct page *page)
@@ -316,7 +318,7 @@ void flush_dcache_page(struct page *page)
 		flush_tlb_page(mpnt, addr);
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
+			if (old_addr && parisc_requires_coherency())
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
 			old_addr = addr;
 		}
@@ -331,17 +333,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -375,20 +366,9 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
 
-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
-
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
-{
-	unsigned long flags;
-
-	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start(flags);
-	pdtlb_kernel(page);
-	purge_tlb_end(flags);
-	clear_user_page_asm(page, vaddr);
-}
-EXPORT_SYMBOL(clear_user_page);
+extern void purge_kernel_dcache_page_asm(unsigned long);
+extern void clear_user_page_asm(void *, unsigned long);
+extern void copy_user_page_asm(void *, void *, unsigned long);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
@@ -401,11 +381,26 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
+void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
+{
+	clear_page_asm(vto);
+	if (!parisc_requires_coherency())
+		flush_kernel_dcache_page_asm(vto);
+}
+EXPORT_SYMBOL(clear_user_page);
+
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-		    struct page *pg)
+	struct page *pg)
 {
-	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
+	/* Copy using kernel mapping.  No coherency is needed
+	   (all in kmap/kunmap) on machines that don't support
+	   non-equivalent aliasing.  However, the `from' page
+	   needs to be flushed before it can be accessed through
+	   the kernel mapping. */
+	preempt_disable();
+	flush_dcache_page_asm(__pa(vfrom), vaddr);
+	preempt_enable();
+	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
 		flush_kernel_dcache_page_asm(vto);
 }
@@ -460,8 +455,65 @@ void flush_cache_all(void)
 	on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
 }
 
+static inline unsigned long mm_total_size(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long usize = 0;
+
+	for (vma = mm->mmap; vma; vma = vma->vm_next)
+		usize += vma->vm_end - vma->vm_start;
+	return usize;
+}
+
+static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
+{
+	pte_t *ptep = NULL;
+
+        if (!pgd_none(*pgd)) {
+                pud_t *pud = pud_offset(pgd, addr);
+                if (!pud_none(*pud)) {
+                        pmd_t *pmd = pmd_offset(pud, addr);
+                        if (!pmd_none(*pmd)) {
+                                ptep = pte_offset_map(pmd, addr);
+                        }
+                }
+        }
+	return ptep;
+}
+
 void flush_cache_mm(struct mm_struct *mm)
 {
+	/* Flushing the whole cache on each cpu takes forever on
+	   rp3440, etc.  So, avoid it if the mm isn't too big.
+	   Note: This approach is faster than a range flush when the
+	   context is current, and it works even when non current.  */
+	if (mm_total_size(mm) < parisc_cache_flush_threshold) {
+		struct vm_area_struct *vma;
+
+		if (mm->context == mfsp(3)) {
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				flush_user_dcache_range_asm(vma->vm_start, vma->vm_end);
+				if(vma->vm_flags & VM_EXEC)
+					flush_user_icache_range_asm(vma->vm_start, vma->vm_end);
+			}
+		} else {
+			pgd_t *pgd = mm->pgd;
+
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				unsigned long addr;
+
+				for (addr = vma->vm_start; addr < vma->vm_end; addr += PAGE_SIZE) {
+					pte_t *ptep = get_ptep(pgd, addr);
+					if (ptep != NULL) {
+						pte_t pte = *ptep;
+						__flush_cache_page(vma, addr, page_to_phys(pte_page(pte)));
+					}
+				}
+			}
+		}
+		return;
+	}
+
 #ifdef CONFIG_SMP
 	flush_cache_all();
 #else
@@ -487,20 +539,34 @@ flush_user_icache_range(unsigned long start, unsigned long end)
 		flush_instruction_cache();
 }
 
-
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	int sr3;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
+	if ((end - start) < parisc_cache_flush_threshold) {
+		if (vma->vm_mm->context == mfsp(3)) {
+			flush_user_dcache_range_asm(start,end);
+			if(vma->vm_flags & VM_EXEC)
+				flush_user_icache_range_asm(start,end);
+		} else {
+			unsigned long addr;
+			pgd_t *pgd = vma->vm_mm->pgd;
+
+			for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+				pte_t *ptep = get_ptep(pgd, addr);
+				if (ptep != NULL) {
+					pte_t pte = *ptep;
+					flush_cache_page(vma, addr, pte_pfn(pte));
+				}
+			}
+		}
 	} else {
+#ifdef CONFIG_SMP
 		flush_cache_all();
+#else
+		flush_cache_all_local();
+#endif
 	}
 }
 
@@ -513,3 +579,81 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
+
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	mtsp(mm->context,1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+}
+
+#ifdef CONFIG_PARISC_TMPALIAS
+
+void clear_user_highpage(struct page *page, unsigned long vaddr)
+{
+	void *vto;
+	unsigned long flags;
+
+	/* Clear using TMPALIAS region.  The page doesn't need to
+	   be flushed but the kernel mapping needs to be purged.  */
+
+	vto = kmap_atomic(page, KM_USER0);
+
+	/* The PA-RISC 2.0 Architecture book states on page F-6:
+	   "Before a write-capable translation is enabled, *all*
+	   non-equivalently-aliased translations must be removed
+	   from the page table and purged from the TLB.  (Note
+	   that the caches are not required to be flushed at this
+	   time.)  Before any non-equivalent aliased translation
+	   is re-enabled, the virtual address range for the writeable
+	   page (the entire page) must be flushed from the cache,
+	   and the write-capable translation removed from the page
+	   table and purged from the TLB."  */
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	purge_tlb_end(flags);
+	preempt_disable();
+	clear_user_page_asm(vto, vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma)
+{
+	void *vfrom, *vto;
+	unsigned long flags;
+
+	/* Copy using TMPALIAS region.  This has the advantage
+	   that the `from' page doesn't need to be flushed.  However,
+	   the `to' page must be flushed in copy_user_page_asm since
+	   it can be used to bring in executable code.  */
+
+	vfrom = kmap_atomic(from, KM_USER0);
+	vto = kmap_atomic(to, KM_USER1);
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	pdtlb_kernel(vfrom);
+	purge_tlb_end(flags);
+	preempt_disable();
+	copy_user_page_asm(vto, vfrom, vaddr);
+	flush_dcache_page_asm(__pa(vto), vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER1); */
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+#endif /* CONFIG_PARISC_TMPALIAS */
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 93ff3d9..9a29e34 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -199,7 +199,6 @@ ENTRY(flush_instruction_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
 	load32		cache_info, %r1
 
 	/* Flush Instruction Cache */
@@ -208,20 +207,46 @@ ENTRY(flush_instruction_cache_local)
 	LDREG		ICACHE_STRIDE(%r1), %arg1
 	LDREG		ICACHE_COUNT(%r1), %arg2
 	LDREG		ICACHE_LOOP(%r1), %arg3
-	rsm             PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fioneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fisync	/* If loop < 0, do sync */
 
 fimanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fimanyloop	/* Adjusted inner loop decr */
-	fice            %r0(%sr1, %arg0)
-	fice,m		%arg1(%sr1, %arg0)	/* Last fice and addr adjust */
+	fice            %r0(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)	/* Last fice and addr adjust */
 	movb,tr		%arg3, %r31, fimanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fisync	/* Outer loop decr */
 
 fioneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fioneloop	/* Outer loop count decr */
-	fice,m		%arg1(%sr1, %arg0)	/* Fice for one loop */
+	/* Some implementations may flush with a single fice instruction */
+	cmpib,COND(>>=),n	15, %arg2, fioneloop2
+
+fioneloop1:
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	addib,COND(>)	-16, %arg2, fioneloop1
+	fice,m		%arg1(%sr2, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fisync	/* Predict branch taken */
+
+fioneloop2:
+	addib,COND(>)	-1, %arg2, fioneloop2	/* Outer loop count decr */
+	fice,m		%arg1(%sr2, %arg0)	/* Fice for one loop */
 
 fisync:
 	sync
@@ -240,8 +265,7 @@ ENTRY(flush_data_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
-	load32 		cache_info, %r1
+	load32		cache_info, %r1
 
 	/* Flush Data Cache */
 
@@ -249,20 +273,46 @@ ENTRY(flush_data_cache_local)
 	LDREG		DCACHE_STRIDE(%r1), %arg1
 	LDREG		DCACHE_COUNT(%r1), %arg2
 	LDREG		DCACHE_LOOP(%r1), %arg3
-	rsm		PSW_SM_I, %r22
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fdoneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fdsync	/* If loop < 0, do sync */
 
 fdmanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fdmanyloop	/* Adjusted inner loop decr */
-	fdce		%r0(%sr1, %arg0)
-	fdce,m		%arg1(%sr1, %arg0)	/* Last fdce and addr adjust */
+	fdce		%r0(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)	/* Last fdce and addr adjust */
 	movb,tr		%arg3, %r31, fdmanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fdsync	/* Outer loop decr */
 
 fdoneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fdoneloop	/* Outer loop count decr */
-	fdce,m		%arg1(%sr1, %arg0)	/* Fdce for one loop */
+	/* Some implementations may flush with a single fdce instruction */
+	cmpib,COND(>>=),n	15, %arg2, fdoneloop2
+
+fdoneloop1:
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	addib,COND(>)	-16, %arg2, fdoneloop1
+	fdce,m		%arg1(%sr2, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fdsync	/* Predict branch taken */
+
+fdoneloop2:
+	addib,COND(>)	-1, %arg2, fdoneloop2	/* Outer loop count decr */
+	fdce,m		%arg1(%sr2, %arg0)	/* Fdce for one loop */
 
 fdsync:
 	syncdma
@@ -277,7 +327,104 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+/* Macros to serialize TLB purge operations on SMP.  */
+
+	.macro	tlb_lock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock,%r1
+	ldo		R%pa_tlb_lock(%r1),\la
+	rsm		PSW_SM_I,\flags
+1:	LDCW		0(\la),\tmp
+	cmpib,<>,n	0,\tmp,3f
+2:	ldw		0(\la),\tmp
+	cmpb,<>		%r0,\tmp,1b
+	nop
+	b,n		2b
+3:
+#endif
+	.endm
+
+	.macro	tlb_unlock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldi		1,\tmp
+	stw		\tmp,0(\la)
+	mtsm		\flags
+#endif
+	.endm
+
+/* Clear page using kernel mapping.  */
+
+ENTRY(clear_page_asm)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+#ifdef CONFIG_64BIT
+
+	/* Unroll the loop.  */
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:
+	std		%r0, 0(%r26)
+	std		%r0, 8(%r26)
+	std		%r0, 16(%r26)
+	std		%r0, 24(%r26)
+	std		%r0, 32(%r26)
+	std		%r0, 40(%r26)
+	std		%r0, 48(%r26)
+	std		%r0, 56(%r26)
+	std		%r0, 64(%r26)
+	std		%r0, 72(%r26)
+	std		%r0, 80(%r26)
+	std		%r0, 88(%r26)
+	std		%r0, 96(%r26)
+	std		%r0, 104(%r26)
+	std		%r0, 112(%r26)
+	std		%r0, 120(%r26)
+
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
+
+#else
+
+	/*
+	 * Note that until (if) we start saving the full 64-bit register
+	 * values on interrupt, we can't use std on a 32 bit kernel.
+	 */
+	ldi		(PAGE_SIZE / 64), %r1
+
+1:
+	stw		%r0, 0(%r26)
+	stw		%r0, 4(%r26)
+	stw		%r0, 8(%r26)
+	stw		%r0, 12(%r26)
+	stw		%r0, 16(%r26)
+	stw		%r0, 20(%r26)
+	stw		%r0, 24(%r26)
+	stw		%r0, 28(%r26)
+	stw		%r0, 32(%r26)
+	stw		%r0, 36(%r26)
+	stw		%r0, 40(%r26)
+	stw		%r0, 44(%r26)
+	stw		%r0, 48(%r26)
+	stw		%r0, 52(%r26)
+	stw		%r0, 56(%r26)
+	stw		%r0, 60(%r26)
+
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		64(%r26), %r26
+#endif
+	bv		%r0(%r2)
+	nop
+	.exit
+
+	.procend
+ENDPROC(clear_page_asm)
+
+/* Copy page using kernel mapping.  */
+
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -285,18 +432,14 @@ ENTRY(copy_user_page_asm)
 #ifdef CONFIG_64BIT
 	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
 	 * Unroll the loop by hand and arrange insn appropriately.
-	 * GCC probably can do this just as well.
+	 * Prefetch doesn't improve performance on rp3440.
+	 * GCC probably can do this just as well...
 	 */
 
-	ldd		0(%r25), %r19
 	ldi		(PAGE_SIZE / 128), %r1
 
-	ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
-	ldw		128(%r25), %r0		/* prefetch 2 */
-
-1:	ldd		8(%r25), %r20
-	ldw		192(%r25), %r0		/* prefetch 3 */
-	ldw		256(%r25), %r0		/* prefetch 4 */
+1:	ldd		0(%r25), %r19
+	ldd		8(%r25), %r20
 
 	ldd		16(%r25), %r21
 	ldd		24(%r25), %r22
@@ -330,20 +473,16 @@ ENTRY(copy_user_page_asm)
 
 	ldd		112(%r25), %r21
 	ldd		120(%r25), %r22
+	ldo		128(%r25), %r25
 	std		%r19, 96(%r26)
 	std		%r20, 104(%r26)
 
-	ldo		128(%r25), %r25
 	std		%r21, 112(%r26)
 	std		%r22, 120(%r26)
-	ldo		128(%r26), %r26
 
-	/* conditional branches nullify on forward taken branch, and on
-	 * non-taken backward branch. Note that .+4 is a backwards branch.
-	 * The ldd should only get executed if the branch is taken.
-	 */
-	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
-	ldd		0(%r25), %r19		/* start next loads */
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
 
 #else
 
@@ -399,7 +538,7 @@ ENTRY(copy_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,8 +561,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
-
 	/*
 	 * We can't do this since copy_user_page is used to bring in
 	 * file data that might have instructions. Since the data would
@@ -435,6 +572,7 @@ ENDPROC(copy_user_page_asm)
 	 * use it if more information is passed into copy_user_page().
 	 * Have to do some measurements to see if it is worthwhile to
 	 * lobby for such a change.
+	 *
 	 */
 
 ENTRY(copy_user_page_asm)
@@ -442,16 +580,21 @@ ENTRY(copy_user_page_asm)
 	.callinfo NO_CALLS
 	.entry
 
+	/* Convert virtual `to' and `from' addresses to physical addresses.
+	   Move `from' physical address to non shadowed register.  */
 	ldil		L%(__PAGE_OFFSET), %r1
 	sub		%r26, %r1, %r26
-	sub		%r25, %r1, %r23		/* move physical addr into non shadowed reg */
+	sub		%r25, %r1, %r23
 
 	ldil		L%(TMPALIAS_MAP_START), %r28
 	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
-	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+#endif
+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
+	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
@@ -466,10 +609,76 @@ ENTRY(copy_user_page_asm)
 
 	/* Purge any old translations */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+	pdtlb,l		0(%r29)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
-	ldi		64, %r1
+#ifdef CONFIG_64BIT
+	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
+	 * Unroll the loop by hand and arrange insn appropriately.
+	 * GCC probably can do this just as well.
+	 */
+
+	ldd		0(%r29), %r19
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:	ldd		8(%r29), %r20
+
+	ldd		16(%r29), %r21
+	ldd		24(%r29), %r22
+	std		%r19, 0(%r28)
+	std		%r20, 8(%r28)
+
+	ldd		32(%r29), %r19
+	ldd		40(%r29), %r20
+	std		%r21, 16(%r28)
+	std		%r22, 24(%r28)
+
+	ldd		48(%r29), %r21
+	ldd		56(%r29), %r22
+	std		%r19, 32(%r28)
+	std		%r20, 40(%r28)
+
+	ldd		64(%r29), %r19
+	ldd		72(%r29), %r20
+	std		%r21, 48(%r28)
+	std		%r22, 56(%r28)
+
+	ldd		80(%r29), %r21
+	ldd		88(%r29), %r22
+	std		%r19, 64(%r28)
+	std		%r20, 72(%r28)
+
+	ldd		 96(%r29), %r19
+	ldd		104(%r29), %r20
+	std		%r21, 80(%r28)
+	std		%r22, 88(%r28)
+
+	ldd		112(%r29), %r21
+	ldd		120(%r29), %r22
+	std		%r19, 96(%r28)
+	std		%r20, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r21, 112(%r28)
+	std		%r22, 120(%r28)
+	ldo		128(%r28), %r28
+
+	/* conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 * The ldd should only get executed if the branch is taken.
+	 */
+	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
+	ldd		0(%r29), %r19		/* start next loads */
+
+#else
+	ldi		(PAGE_SIZE / 64), %r1
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,9 +689,7 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
+1:	ldw		0(%r29), %r19
 	ldw		4(%r29), %r20
 	ldw		8(%r29), %r21
 	ldw		12(%r29), %r22
@@ -515,8 +722,10 @@ ENTRY(copy_user_page_asm)
 	stw		%r21, 56(%r28)
 	stw		%r22, 60(%r28)
 	ldo		64(%r28), %r28
+
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
+#endif
 
 	bv		%r0(%r2)
 	nop
@@ -524,9 +733,8 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -550,7 +758,13 @@ ENTRY(__clear_user_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
@@ -580,8 +794,7 @@ ENTRY(__clear_user_page_asm)
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
-	stw		%r0, 0(%r28)
+1:	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
 	stw		%r0, 12(%r28)
@@ -606,7 +819,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_dcache_page_asm)
 	.proc
@@ -630,7 +843,13 @@ ENTRY(flush_dcache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), %r1
@@ -663,8 +882,17 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		%r1(%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pdtlb		(%r25)
+	nop
 	.exit
 
 	.procend
@@ -692,7 +920,13 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pitlb,l		%r0(%sr0,%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pitlb		(%sr0,%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -725,8 +959,17 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r1(%r28)
 
 	sync
-	bv		%r0(%r2)
+
+#ifdef CONFIG_PA20
+	pitlb,l		%r0(%sr0,%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pitlb		(%sr0,%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
+	bv		%r0(%r2)
+	nop
 	.exit
 
 	.procend
@@ -775,7 +1018,7 @@ ENTRY(flush_kernel_dcache_page_asm)
 	.procend
 ENDPROC(flush_kernel_dcache_page_asm)
 
-ENTRY(purge_kernel_dcache_page)
+ENTRY(purge_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -815,7 +1058,7 @@ ENTRY(purge_kernel_dcache_page)
 	.exit
 
 	.procend
-ENDPROC(purge_kernel_dcache_page)
+ENDPROC(purge_kernel_dcache_page_asm)
 
 ENTRY(flush_user_dcache_range_asm)
 	.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index a7bb757..25835d8 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -158,5 +158,6 @@ extern void _mcount(void);
 EXPORT_SYMBOL(_mcount);
 #endif
 
-/* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+/* from pacache.S -- needed for clear/copy_page */
+EXPORT_SYMBOL(clear_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 12c1ed3..5dd1059 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -314,7 +314,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #if DEBUG_SIG
 	/* Assert that we're flushing in the correct space... */
 	{
-		int sid;
+		unsigned long sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
 		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
 		       sid, frame->tramp);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..f0cb56e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 

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From: Grant Grundler <grantgrundler@gmail.com>
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Subject: Re: [PATCH] Fix compile failure on PA-RISC
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On Sun, May 6, 2012 at 5:24 AM, Alan Cox <alan@lxorguk.ukuu.org.uk> wro=
te:
>> What NO_IRQ problem do you mean? There is
>> #define NO_IRQ =A0 =A0 =A0 =A0 =A0(-1)
>> in arch/parisc/include/asm/irq.h.
>
> It should be zero ready for us to get rid of it. Aa far as I can tell
> pa-risc can just move to 0 without anything breaking. In fact some st=
uff
> like serial port polling on 8250 ports will begin to work if it's don=
e.

Alan,
Didn't this patch of yours go in?
    http://www.spinics.net/lists/linux-parisc/msg03894.html

And it's amusing to read linus' previous rants on this issue from 2005:
    http://lkml.indiana.edu/hypermail/linux/kernel/0511.2/1720.html
    http://lkml.indiana.edu/hypermail/linux/kernel/0511.2/1741.html
    http://lkml.indiana.edu/hypermail/linux/kernel/0511.2/1845.html

cheers,
grant
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On Tue, May 8, 2012 at 8:20 PM, Mikulas Patocka <mpatocka@redhat.com> wrote:
>>
>> Switching it to zero and testing that things still work would be appreciated.
>
> It works, but there is plenty of interrupt controllers on PC-RISC and I
> can only test it on C8000 with IO-SAPIC. I don't know if irq 0 is used on
> some PA-RISC interrupt controller. It would be best if James Bottomley
> tests it on his set of machines.

Heh. It sounds like we have more PA-RISC machines than we have actual users.

> And what about x86? --- irq 0 is used for timer and there is
> void __init setup_default_timer_irq(void)
> {
>        setup_irq(0, &irq0);
> }
> in arch/x86/kernel/time.c.

That's fine. There's no "irq" variable associated with it that people
can test. No driver will ever see an irq number of zero, no dynamic
irq code will ever see the zero.

So x86 rules have always been that the way drivers etc test for irq
existence has always been "irq 0 means no irq". Despite the fact that
it internally uses irq0 for its own nefarious uses.

                    Linus
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On 05/09/2012 08:53 AM, Rolf Eike Beer wrote:
> See the mail thread "Boot error using 3.2.1: swapper (pid 1): Illegal 
> instruction (code 8)" I started when I first hit this on my 705.

I agree; this is the same issue, and you pointed at the same "culprit"
commit already. Too bad I did not search the ML archive enough.

V.
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On 05/09/2012 05:55 PM, John David Anglin wrote:
> Attached is an updated version.   It applies against 3.3.4.

Thanks. It applies on v3.4-rc6 with no issue. However, it crashes at
boot in flush_dcache_page_asm.

Best regards,

V.
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On 5/9/2012 5:14 PM, Vincent wrote:
> On 05/09/2012 05:55 PM, John David Anglin wrote:
>> Attached is an updated version.   It applies against 3.3.4.
> Thanks. It applies on v3.4-rc6 with no issue. However, it crashes at
> boot in flush_dcache_page_asm.
>
Do you have a specific instruction where it crashes?

Dave

-- 
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Subject: [PATCH 1/5] PA-RISC: fix compile errors
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>

This leads to this errors:

In file included from /home/buildbot/repos/linux/arch/parisc/include/asm/atomic.h:20:0,
                 from /home/buildbot/repos/linux/include/linux/atomic.h:4,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:56,
                 from /home/buildbot/repos/linux/include/linux/bitops.h:22,
                 from /home/buildbot/repos/linux/include/linux/kernel.h:19,
                 from /home/buildbot/repos/linux/include/linux/sched.h:55,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/asm-offsets.c:31:
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h: In function "arch_spin_is_locked":
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:9:2: error: implicit declaration of function "__ldcw_align" [-Werror=implicit-function-declaration]
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:9:29: warning: initialization makes pointer from integer without a cast [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h: In function "arch_spin_lock_flags":
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:22:2: error: implicit declaration of function "mb" [-Werror=implicit-function-declaration]
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:23:4: warning: assignment makes pointer from integer without a cast [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:24:2: error: implicit declaration of function "__ldcw" [-Werror=implicit-function-declaration]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
---
 arch/parisc/include/asm/spinlock.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index 804aa28..3516e0b 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -1,6 +1,8 @@
 #ifndef __ASM_SPINLOCK_H
 #define __ASM_SPINLOCK_H
 
+#include <asm/barrier.h>
+#include <asm/ldcw.h>
 #include <asm/processor.h>
 #include <asm/spinlock_types.h>
 

From - Thu Nov 08 21:08:11 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 2/5] PA-RISC: fix compile errors
Date: Wed, 9 May 2012 18:17:13 -0400 (EDT)
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	Rolf Eike Beer <eike-kernel@sf-tec.de>,
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>

Fixes this warnings:

In file included from /home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:15:0,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:4,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/atomic.h:20,
                 from /home/buildbot/repos/linux/include/linux/atomic.h:4,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:11,
                 from /home/buildbot/repos/linux/include/linux/bitops.h:22,
                 from /home/buildbot/repos/linux/include/linux/kernel.h:19,
                 from /home/buildbot/repos/linux/include/linux/sched.h:55,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/asm-offsets.c:31:
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:106:10: warning: "struct hardware_path" declared inside parameter list [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:106:10: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:116:59: warning: "struct hardware_path" declared inside parameter list [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:118:47: warning: "struct hardware_path" declared inside parameter list [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:119:57: warning: "struct hardware_path" declared inside parameter list [enabled by default]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
---
 arch/parisc/include/asm/hardware.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/include/asm/hardware.h b/arch/parisc/include/asm/hardware.h
index 4e96268..036e703 100644
--- a/arch/parisc/include/asm/hardware.h
+++ b/arch/parisc/include/asm/hardware.h
@@ -95,12 +95,14 @@ struct bc_module {
 #define HPHW_MC	       15
 #define HPHW_FAULTY    31
 
+struct parisc_device_id;
 
 /* hardware.c: */
 extern const char *parisc_hardware_description(struct parisc_device_id *id);
 extern enum cpu_type parisc_get_cpu_type(unsigned long hversion);
 
 struct pci_dev;
+struct hardware_path;
 
 /* drivers.c: */
 extern struct parisc_device *alloc_pa_dev(unsigned long hpa,

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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 3/5] PA-RISC: fix compile errors
Date: Wed, 9 May 2012 18:17:42 -0400 (EDT)
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>

It seems none of the symbols defined by pdc.h is needed, but it introduces an
include loop causing compile errors:

In file included from /home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:4:0,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/atomic.h:20,
                 from /home/buildbot/repos/linux/include/linux/atomic.h:4,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:56,
                 from /home/buildbot/repos/linux/include/linux/bitops.h:35,
                 from /home/buildbot/repos/linux/include/asm-generic/getorder.h:7,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/page.h:162,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/pdc.h:346,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:5,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/hardware.c:30:
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:74:16: error: field "cpu_type" has incomplete type
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:77:20: error: field "model" has incomplete type
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h: In function "parisc_requires_coherency":
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:349:36: error: "mako" undeclared (first use in this function)
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:349:36: note: each undeclared identifier is reported only once for each function it appears in
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:350:30: error: "mako2" undeclared (first use in this function)

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
---
 arch/parisc/include/asm/hardware.h |    1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/parisc/include/asm/hardware.h b/arch/parisc/include/asm/hardware.h
index 036e703..d1d864b 100644
--- a/arch/parisc/include/asm/hardware.h
+++ b/arch/parisc/include/asm/hardware.h
@@ -2,7 +2,6 @@
 #define _PARISC_HARDWARE_H
 
 #include <linux/mod_devicetable.h>
-#include <asm/pdc.h>
 
 #define HWTYPE_ANY_ID		PA_HWTYPE_ANY_ID
 #define HVERSION_ANY_ID		PA_HVERSION_ANY_ID


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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 4/5] PA-RISC: fix compile errors
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>

Fixes these errors:

In file included from /home/buildbot/repos/linux/arch/parisc/include/asm/io.h:5:0,
                 from /home/buildbot/repos/linux/include/linux/io.h:22,
                 from /home/buildbot/repos/linux/include/linux/pci.h:54,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/setup.c:35:
/home/buildbot/repos/linux/arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef]
/home/buildbot/repos/linux/arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef]
/home/buildbot/repos/linux/arch/parisc/include/asm/pgtable.h:92:6: warning: "BITS_PER_PTE_ENTRY" is not defined [-Wundef]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
---
 arch/parisc/include/asm/pgtable.h |    2 ++
 1 file changed, 2 insertions(+)

Index: linux-3.4-rc6-fast/arch/parisc/include/asm/pgtable.h
===================================================================
--- linux-3.4-rc6-fast.orig/arch/parisc/include/asm/pgtable.h	2012-05-09 04:34:41.000000000 +0200
+++ linux-3.4-rc6-fast/arch/parisc/include/asm/pgtable.h	2012-05-09 04:35:16.000000000 +0200
@@ -44,6 +44,8 @@ struct vm_area_struct;
 
 #endif /* !__ASSEMBLY__ */
 
+#include <asm/page.h>
+
 #define pte_ERROR(e) \
 	printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
 #define pmd_ERROR(e) \

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From - Thu Nov 08 21:08:11 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 5/5] PA-RISC: fix compile errors
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>

This was defined in asm/pdc.h which needs to include asm/page.h for
__PAGE_OFFSET. This leads to an include loop so that page.h eventually will
include pdc.h again. While this is no problem because of header guards, it is
a problem because some symbols may be undefined. Such an error is this:

In file included from /home/buildbot/repos/linux/include/linux/bitops.h:35:0,
                 from /home/buildbot/repos/linux/include/asm-generic/getorder.h:7,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/page.h:162,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/pdc.h:346,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:16,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:6,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/atomic.h:20,
                 from /home/buildbot/repos/linux/include/linux/atomic.h:4,
                 from /home/buildbot/repos/linux/include/linux/sysfs.h:20,
                 from /home/buildbot/repos/linux/include/linux/kobject.h:21,
                 from /home/buildbot/repos/linux/include/linux/device.h:17,
                 from /home/buildbot/repos/linux/include/linux/eisa.h:5,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/pci.c:11:
/home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h: In function "set_bit":
/home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:82:2: error: implicit declaration of function "_atomic_spin_lock_irqsave" [-Werror=implicit-function-declaration]
/home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:84:2: error: implicit declaration of function "_atomic_spin_unlock_irqrestore" [-Werror=implicit-function-declaration]

Signed-off-by: Rolf Eike Beer <eike-kernel@xxxxxxxxx>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
---
 arch/parisc/include/asm/page.h  |    6 ++++++
 arch/parisc/include/asm/pdc.h   |    7 -------
 arch/parisc/kernel/pdc_cons.c   |    1 +
 arch/parisc/kernel/time.c       |    1 +
 drivers/parisc/sba_iommu.c      |    1 +
 drivers/video/console/sticore.c |    2 ++
 6 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index a84cc1f..4e0e7db 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -160,5 +160,11 @@ extern int npmem_ranges;
 
 #include <asm-generic/memory_model.h>
 #include <asm-generic/getorder.h>
+#include <asm/pdc.h>
+
+#define PAGE0   ((struct zeropage *)__PAGE_OFFSET)
+
+/* DEFINITION OF THE ZERO-PAGE (PAG0) */
+/* based on work by Jason Eckhardt (jason@equator.com) */
 
 #endif /* _PARISC_PAGE_H */
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 4ca510b..7f0f2d2 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -343,8 +343,6 @@
 
 #ifdef __KERNEL__
 
-#include <asm/page.h> /* for __PAGE_OFFSET */
-
 extern int pdc_type;
 
 /* Values for pdc_type */
@@ -677,11 +675,6 @@ static inline char * os_id_to_string(u16 os_id) {
 
 #endif /* __KERNEL__ */
 
-#define PAGE0   ((struct zeropage *)__PAGE_OFFSET)
-
-/* DEFINITION OF THE ZERO-PAGE (PAG0) */
-/* based on work by Jason Eckhardt (jason@equator.com) */
-
 /* flags of the device_path */
 #define	PF_AUTOBOOT	0x80
 #define	PF_AUTOSEARCH	0x40
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 4f00459..9bbd2a5 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -50,6 +50,7 @@
 #include <linux/init.h>
 #include <linux/major.h>
 #include <linux/tty.h>
+#include <asm/page.h>		/* for PAGE0 */
 #include <asm/pdc.h>		/* for iodc_call() proto and friends */
 
 static DEFINE_SPINLOCK(pdc_console_lock);
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 7c07743..70e105d 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -29,6 +29,7 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/irq.h>
+#include <asm/page.h>
 #include <asm/param.h>
 #include <asm/pdc.h>
 #include <asm/led.h>
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 8644d53..42cfcd9 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -44,6 +44,7 @@
 #include <asm/ropes.h>
 #include <asm/mckinley.h>	/* for proc_mckinley_root */
 #include <asm/runway.h>		/* for proc_runway_root */
+#include <asm/page.h>		/* for PAGE0 */
 #include <asm/pdc.h>		/* for PDC_MODEL_* */
 #include <asm/pdcpat.h>		/* for is_pdc_pat() */
 #include <asm/parisc-device.h>
diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index 6468a29..39571f9 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -22,7 +22,9 @@
 #include <linux/font.h>
 
 #include <asm/hardware.h>
+#include <asm/page.h>
 #include <asm/parisc-device.h>
+#include <asm/pdc.h>
 #include <asm/cacheflush.h>
 #include <asm/grfioctl.h>
 


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Subject: Re: [PATCH 5/5] PA-RISC: fix compile errors
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On Wed, May 9, 2012 at 6:19 PM, Mikulas Patocka <mpatocka@redhat.com> w=
rote:
> From: Rolf Eike Beer <eike-kernel@sf-tec.de>
>
> This was defined in asm/pdc.h which needs to include asm/page.h for
> __PAGE_OFFSET. This leads to an include loop so that page.h eventuall=
y will
> include pdc.h again. While this is no problem because of header guard=
s, it is
> a problem because some symbols may be undefined. Such an error is thi=
s:
>
> In file included from /home/buildbot/repos/linux/include/linux/bitops=
=2Eh:35:0,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/inclu=
de/asm-generic/getorder.h:7,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/arch/=
parisc/include/asm/page.h:162,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/arch/=
parisc/include/asm/pdc.h:346,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/arch/=
parisc/include/asm/processor.h:16,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/arch/=
parisc/include/asm/spinlock.h:6,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/arch/=
parisc/include/asm/atomic.h:20,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/inclu=
de/linux/atomic.h:4,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/inclu=
de/linux/sysfs.h:20,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/inclu=
de/linux/kobject.h:21,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/inclu=
de/linux/device.h:17,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/inclu=
de/linux/eisa.h:5,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/arch/=
parisc/kernel/pci.c:11:
> /home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h: In funct=
ion "set_bit":
> /home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:82:2: err=
or: implicit declaration of function "_atomic_spin_lock_irqsave" [-Werr=
or=3Dimplicit-function-declaration]
> /home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:84:2: err=
or: implicit declaration of function "_atomic_spin_unlock_irqrestore" [=
-Werror=3Dimplicit-function-declaration]
>
> Signed-off-by: Rolf Eike Beer <eike-kernel@xxxxxxxxx>

Email address got eaten?

> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
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On Wed, 9 May 2012, Matt Turner wrote:

> On Wed, May 9, 2012 at 6:19 PM, Mikulas Patocka <mpatocka@redhat.com> wro=
te:
> > From: Rolf Eike Beer <eike-kernel@sf-tec.de>
> >
> > This was defined in asm/pdc.h which needs to include asm/page.h for
> > __PAGE_OFFSET. This leads to an include loop so that page.h eventually =
will
> > include pdc.h again. While this is no problem because of header guards,=
 it is
> > a problem because some symbols may be undefined. Such an error is this:
> >
> > In file included from /home/buildbot/repos/linux/include/linux/bitops.h=
:35:0,
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/include=
/asm-generic/getorder.h:7,
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/arch/pa=
risc/include/asm/page.h:162,
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/arch/pa=
risc/include/asm/pdc.h:346,
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/arch/pa=
risc/include/asm/processor.h:16,
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/arch/pa=
risc/include/asm/spinlock.h:6,
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/arch/pa=
risc/include/asm/atomic.h:20,
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/include=
/linux/atomic.h:4,
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/include=
/linux/sysfs.h:20,
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/include=
/linux/kobject.h:21,
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/include=
/linux/device.h:17,
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/include=
/linux/eisa.h:5,
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 from /home/buildbot/repos/linux/arch/pa=
risc/kernel/pci.c:11:
> > /home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h: In functio=
n "set_bit":
> > /home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:82:2: error=
: implicit declaration of function "_atomic_spin_lock_irqsave" [-Werror=3Di=
mplicit-function-declaration]
> > /home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:84:2: error=
: implicit declaration of function "_atomic_spin_unlock_irqrestore" [-Werro=
r=3Dimplicit-function-declaration]
> >
> > Signed-off-by: Rolf Eike Beer <eike-kernel@xxxxxxxxx>
>=20
> Email address got eaten?

I was copying the patch from mailing list web archive and it mangles=20
addresses. I fixed the others addresses, but forgot about this one.

Mikulas

> > Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
>=20
--185242623-560017539-1336602846=:1272--
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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: [PATCH 5/5] PA-RISC: fix compile errors
Date: Wed, 9 May 2012 18:35:14 -0400 (EDT)
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Cc: linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Rolf Eike Beer <eike-kernel@sf-tec.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>

This was defined in asm/pdc.h which needs to include asm/page.h for
__PAGE_OFFSET. This leads to an include loop so that page.h eventually will
include pdc.h again. While this is no problem because of header guards, it is
a problem because some symbols may be undefined. Such an error is this:

In file included from /home/buildbot/repos/linux/include/linux/bitops.h:35:0,
                 from /home/buildbot/repos/linux/include/asm-generic/getorder.h:7,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/page.h:162,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/pdc.h:346,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:16,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:6,
                 from /home/buildbot/repos/linux/arch/parisc/include/asm/atomic.h:20,
                 from /home/buildbot/repos/linux/include/linux/atomic.h:4,
                 from /home/buildbot/repos/linux/include/linux/sysfs.h:20,
                 from /home/buildbot/repos/linux/include/linux/kobject.h:21,
                 from /home/buildbot/repos/linux/include/linux/device.h:17,
                 from /home/buildbot/repos/linux/include/linux/eisa.h:5,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/pci.c:11:
/home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h: In function "set_bit":
/home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:82:2: error: implicit declaration of function "_atomic_spin_lock_irqsave" [-Werror=implicit-function-declaration]
/home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:84:2: error: implicit declaration of function "_atomic_spin_unlock_irqrestore" [-Werror=implicit-function-declaration]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
---
 arch/parisc/include/asm/page.h  |    6 ++++++
 arch/parisc/include/asm/pdc.h   |    7 -------
 arch/parisc/kernel/pdc_cons.c   |    1 +
 arch/parisc/kernel/time.c       |    1 +
 drivers/parisc/sba_iommu.c      |    1 +
 drivers/video/console/sticore.c |    2 ++
 6 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index a84cc1f..4e0e7db 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -160,5 +160,11 @@ extern int npmem_ranges;
 
 #include <asm-generic/memory_model.h>
 #include <asm-generic/getorder.h>
+#include <asm/pdc.h>
+
+#define PAGE0   ((struct zeropage *)__PAGE_OFFSET)
+
+/* DEFINITION OF THE ZERO-PAGE (PAG0) */
+/* based on work by Jason Eckhardt (jason@equator.com) */
 
 #endif /* _PARISC_PAGE_H */
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 4ca510b..7f0f2d2 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -343,8 +343,6 @@
 
 #ifdef __KERNEL__
 
-#include <asm/page.h> /* for __PAGE_OFFSET */
-
 extern int pdc_type;
 
 /* Values for pdc_type */
@@ -677,11 +675,6 @@ static inline char * os_id_to_string(u16 os_id) {
 
 #endif /* __KERNEL__ */
 
-#define PAGE0   ((struct zeropage *)__PAGE_OFFSET)
-
-/* DEFINITION OF THE ZERO-PAGE (PAG0) */
-/* based on work by Jason Eckhardt (jason@equator.com) */
-
 /* flags of the device_path */
 #define	PF_AUTOBOOT	0x80
 #define	PF_AUTOSEARCH	0x40
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 4f00459..9bbd2a5 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -50,6 +50,7 @@
 #include <linux/init.h>
 #include <linux/major.h>
 #include <linux/tty.h>
+#include <asm/page.h>		/* for PAGE0 */
 #include <asm/pdc.h>		/* for iodc_call() proto and friends */
 
 static DEFINE_SPINLOCK(pdc_console_lock);
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 7c07743..70e105d 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -29,6 +29,7 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/irq.h>
+#include <asm/page.h>
 #include <asm/param.h>
 #include <asm/pdc.h>
 #include <asm/led.h>
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 8644d53..42cfcd9 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -44,6 +44,7 @@
 #include <asm/ropes.h>
 #include <asm/mckinley.h>	/* for proc_mckinley_root */
 #include <asm/runway.h>		/* for proc_runway_root */
+#include <asm/page.h>		/* for PAGE0 */
 #include <asm/pdc.h>		/* for PDC_MODEL_* */
 #include <asm/pdcpat.h>		/* for is_pdc_pat() */
 #include <asm/parisc-device.h>
diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index 6468a29..39571f9 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -22,7 +22,9 @@
 #include <linux/font.h>
 
 #include <asm/hardware.h>
+#include <asm/page.h>
 #include <asm/parisc-device.h>
+#include <asm/pdc.h>
 #include <asm/cacheflush.h>
 #include <asm/grfioctl.h>
 

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From - Thu Nov 08 21:08:12 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
Date: Wed, 9 May 2012 22:03:45 -0400
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Cc: Rolf Eike Beer <eike-kernel@sf-tec.de>,
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To: Vincent <vincent.stehle@laposte.net>
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On 9-May-12, at 5:14 PM, Vincent wrote:

> On 05/09/2012 05:55 PM, John David Anglin wrote:
>> Attached is an updated version.   It applies against 3.3.4.
>
> Thanks. It applies on v3.4-rc6 with no issue. However, it crashes at
> boot in flush_dcache_page_asm.


I want to make a general comment.

The hp712/100 is an old machine.  There is no longer ANY support for
parisc open source by HP.  If the parisc user community wants to  
continue
to run current open source software, then it will have to work  
together to
achieve this goal.

In this case, we need to figure out what is wrong with the tmpalias code
on the hp712/100.

Debian dropping hppa after the lenny release was a wake up call.  There
is pressure on other fronts.  See for example the following thread,
http://gcc.gnu.org/ml/gcc/2012-05/msg00093.html

If accepted, it would mean the end of 32-bit GCC development for parisc,
and therefore the end of parisc linux and netbsd systems.  More  
specifically,
it may be reasonable to drop support for PA 1.1 systems.  So, we need
to hear why it is important to continue to try to maintain PA 1.1  
systems.

In general, I have found Debian package maintainers to be supportive
of bug fixes for parisc.  Most packages still support parisc and build  
without
problems but there is some porting work that needs doing.  For example,
mono has seriously rotted.  Without a viable userspace, there's not much
point to maintaining the kernel.

I applaud Mikulas for reviewing Rolf Eike's fixes for 3.4 and posting  
them to the
linux-kernel list.  Maintainers have personal time issues and can't  
always be
available.

I have spent hundreds of hours building packages, working on GCC,
binutils, glibc and kernel bugs over the past year.  I have pushed fixes
upstream and back ported them as quickly as possible because it takes
considerable time before the fixes start to percolate downstream.

I have a project to restart a Debian buildd for parisc and help would be
appreciated.  The key issue is help in reporting and analyzing package
bugs. and informing the appropriate maintainers when there are problems.

I posted a number of kernel work in progress patches to the linux-parisc
list but nobody bothered to test them except for Vincent today.  All I  
know
at this point is my rp3440 is much more stable and runs twice as fast as
it used to with my cache patch.  As such, it can keep up with unstable.
This took hundreds of kernel builds and considerable long term testing.

The problem with cache bugs is they are difficult.  The parisc  
architecture
and the linux requirements for cache routines are inadequately  
documented.
So, it has become a trial and error exercise.  This has always been the
critical problem for parisc-linux and the code in cache.c reflects this.

It is impossible for volunteers to run and maintain a broad range of
hardware.  So, we need to focus on the hardware that is used and will
continue to used over the next few years.  If users want support, then
they need to be willing to help as well.

Regards,
Dave
--
John David Anglin	dave.anglin@bell.net



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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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John David Anglin wrote:

> I posted a number of kernel work in progress patches to the linux-parisc
> list but nobody bothered to test them except for Vincent today.  All I
> know
> at this point is my rp3440 is much more stable and runs twice as fast as
> it used to with my cache patch.  As such, it can keep up with unstable.
> This took hundreds of kernel builds and considerable long term testing.

I have your patch from a while back applied to my C8000 and I have not seen 
any crashes or other issues yet (since beginning of April). Your futex patches 
are on this machine for even longer. This of course means only that there is 
no obvious breakage, I did not run any special testcase for any of those stuff, 
but at least it doesn't randomly eats my machine.

I think Guy Martin has the cache patch running on at least one of his 
machines.

Related note: The #Gentoo-HPPA channel on Freenode has at least some activity 
every other day, often even daily. The last 3 critical breakages I had (the 
gcc bug breaking swap, the gcc bug breaking ext4 and the 3.4-rc compile 
breakage) were first discussed there before posting anywhere. Because of that 
the initial report e.g. to linux-parisc already had rather good data on what 
is happening.

Eike
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Subject: Re: [PATCH 1/5] PA-RISC: fix compile errors
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Mikulas Patocka wrote:
> From: Rolf Eike Beer <eike-kernel@sf-tec.de>

Thanks Mikulas for picking this up, but you have lost the patch subjects. I'll 
resend the whole series tonight.

Grant, may I transform your comment on #3 (that's #4/6) on the original series 
to an Acked-By or Reviewed-By?

Eike
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Cc: Mikulas Patocka <mpatocka@redhat.com>,
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On Wed, May 9, 2012 at 7:51 PM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
> On Tue, May 8, 2012 at 8:20 PM, Mikulas Patocka <mpatocka@redhat.com>=
 wrote:
>>> Switching it to zero and testing that things still work would be ap=
preciated.
>> It works, but there is plenty of interrupt controllers on PC-RISC an=
d I
>> can only test it on C8000 with IO-SAPIC. I don't know if irq 0 is us=
ed on
>> some PA-RISC interrupt controller. It would be best if James Bottoml=
ey
>> tests it on his set of machines.
>
> Heh. It sounds like we have more PA-RISC machines than we have actual=
 users.
>
>> And what about x86? --- irq 0 is used for timer and there is
>> void __init setup_default_timer_irq(void)
>> {
>> =C2=A0 =C2=A0 =C2=A0 =C2=A0setup_irq(0, &irq0);
>> }
>> in arch/x86/kernel/time.c.
>
> That's fine. There's no "irq" variable associated with it that people
> can test. No driver will ever see an irq number of zero, no dynamic
> irq code will ever see the zero.
>
> So x86 rules have always been that the way drivers etc test for irq
> existence has always been "irq 0 means no irq". Despite the fact that
> it internally uses irq0 for its own nefarious uses.

So can x86 please show the purely internal irq0 in its arch_show_interr=
upts(),
and accept "[PATCH] /proc/interrupts: irq zero is invalid"
(http://lkml.indiana.edu/hypermail/linux/kernel/1112.0/02229.html)?

Also, the several for_each_irq*() macros still iterate over zero, e.g.

# define for_each_irq_desc(irq, desc)                                  =
 \
        for (irq =3D 0, desc =3D irq_to_desc(irq); irq < nr_irqs;      =
     \
             irq++, desc =3D irq_to_desc(irq))                         =
   \
                if (!desc)                                             =
 \
                        ;                                              =
 \
                else


# define for_each_irq_desc_reverse(irq, desc)                          =
 \
        for (irq =3D nr_irqs - 1, desc =3D irq_to_desc(irq); irq >=3D 0=
;      \
             irq--, desc =3D irq_to_desc(irq))                         =
   \
                if (!desc)                                             =
 \
                        ;                                              =
 \
                else

Gr{oetje,eeting}s,

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 =C2=A0=C2=A0 -- Linus Torvalds

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Subject: Re: [PATCH] Fix compile failure on PA-RISC
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On Wed, 9 May 2012 10:38:30 -0700
Grant Grundler <grantgrundler@gmail.com> wrote:

> On Sun, May 6, 2012 at 5:24 AM, Alan Cox <alan@lxorguk.ukuu.org.uk> w=
rote:
> >> What NO_IRQ problem do you mean? There is
> >> #define NO_IRQ =A0 =A0 =A0 =A0 =A0(-1)
> >> in arch/parisc/include/asm/irq.h.
> >
> > It should be zero ready for us to get rid of it. Aa far as I can te=
ll
> > pa-risc can just move to 0 without anything breaking. In fact some =
stuff
> > like serial port polling on 8250 ports will begin to work if it's d=
one.
>=20
> Alan,
> Didn't this patch of yours go in?
>     http://www.spinics.net/lists/linux-parisc/msg03894.html

Last I checked it hadn't - hence the request to test it when I saw
someone actually running parisc.
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Subject: Re: [PATCH 1/5] PA-RISC: fix compile errors
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Cc: Mikulas Patocka <mpatocka@redhat.com>,
	torvalds@linux-foundation.org, linux-parisc@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>
To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On Wed, May 9, 2012 at 11:44 PM, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
> Mikulas Patocka wrote:
>> From: Rolf Eike Beer <eike-kernel@sf-tec.de>
>
> Thanks Mikulas for picking this up, but you have lost the patch subjects. I'll
> resend the whole series tonight.
>
> Grant, may I transform your comment on #3 (that's #4/6) on the original series
> to an Acked-By or Reviewed-By?

Yes - thanks for doing this. :)

cheers,
grant

>
> Eike
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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Cc: Vincent <vincent.stehle@laposte.net>, linux-parisc@vger.kernel.org
To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 5/10/2012 2:41 AM, Rolf Eike Beer wrote:
> John David Anglin wrote:
>
>> I posted a number of kernel work in progress patches to the linux-parisc
>> list but nobody bothered to test them except for Vincent today.  All I
>> know
>> at this point is my rp3440 is much more stable and runs twice as fast as
>> it used to with my cache patch.  As such, it can keep up with unstable.
>> This took hundreds of kernel builds and considerable long term testing.
> I have your patch from a while back applied to my C8000 and I have not seen
> any crashes or other issues yet (since beginning of April). Your futex patches
> are on this machine for even longer. This of course means only that there is
> no obvious breakage, I did not run any special testcase for any of those stuff,
> but at least it doesn't randomly eats my machine.
>
> I think Guy Martin has the cache patch running on at least one of his
> machines.
>
> Related note: The #Gentoo-HPPA channel on Freenode has at least some activity
> every other day, often even daily. The last 3 critical breakages I had (the
> gcc bug breaking swap, the gcc bug breaking ext4 and the 3.4-rc compile
> breakage) were first discussed there before posting anywhere. Because of that
> the initial report e.g. to linux-parisc already had rather good data on what
> is happening.
>
Thanks, it's good to know that there has been some other testing.

Does anyone have a working 32-bit kernel using the tmpalias support?  It 
would be nice
to know if the problem is a 32-bit or PA 1.1 issue.

I asked where the crash occurred because PA 2.0 mnemonics are used in 
the tmpalias
code.  On the other hand, if the failure occurs on the first flush 
instruction, the issue is likely
in the TLB insert code in entry.S.

Dave

-- 
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John David Anglin wrote:
> On 5/10/2012 2:41 AM, Rolf Eike Beer wrote:
> > John David Anglin wrote:
> >> I posted a number of kernel work in progress patches to the linux-parisc
> >> list but nobody bothered to test them except for Vincent today.  All I
> >> know at this point is my rp3440 is much more stable and runs twice as
> >> fast as it used to with my cache patch.  As such, it can keep up with
> >> unstable. This took hundreds of kernel builds and considerable long term
> >> testing.
> > 
> > I have your patch from a while back applied to my C8000 and I have not
> > seen any crashes or other issues yet (since beginning of April).

> > I think Guy Martin has the cache patch running on at least one of his
> > machines.

> Thanks, it's good to know that there has been some other testing.
> 
> Does anyone have a working 32-bit kernel using the tmpalias support?  It
> would be nice to know if the problem is a 32-bit or PA 1.1 issue.
> 
> I asked where the crash occurred because PA 2.0 mnemonics are used in
> the tmpalias code.  On the other hand, if the failure occurs on the first
> flush instruction, the issue is likely in the TLB insert code in entry.S.

I have a C3600 running a 32 bit kernel and it is rock solid. It is currently 
running 3.3.5 and has before been running 3.2.4 without any problems (but both 
without your cache patch).

Eike
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From - Thu Nov 08 21:08:12 2018
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Subject: [PATCH 4/5] parisc: add missing include of asm/page.h to asm/pgtable.h
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
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Fixes these errors:

In file included from /home/buildbot/repos/linux/arch/parisc/include/asm/io.h:5:0,
                 from /home/buildbot/repos/linux/include/linux/io.h:22,
                 from /home/buildbot/repos/linux/include/linux/pci.h:54,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/setup.c:35:
/home/buildbot/repos/linux/arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef]
/home/buildbot/repos/linux/arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef]
/home/buildbot/repos/linux/arch/parisc/include/asm/pgtable.h:92:6: warning: "BITS_PER_PTE_ENTRY" is not defined [-Wundef]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 arch/parisc/include/asm/pgtable.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 22dadeb..ee99f23 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -44,6 +44,8 @@ struct vm_area_struct;
 
 #endif /* !__ASSEMBLY__ */
 
+#include <asm/page.h>
+
 #define pte_ERROR(e) \
 	printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
 #define pmd_ERROR(e) \
-- 
1.7.9.2


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From - Thu Nov 08 21:08:12 2018
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Subject: [PATCH 5/5] parisc: move definition of PAGE0 to asm/page.h
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This was defined in asm/pdc.h which needs to include asm/page.h for
__PAGE_OFFSET. This leads to an include loop so that page.h eventually =
will
include pdc.h again. While this is no problem because of header guards,=
 it is
a problem because some symbols may be undefined. Such an error is this:

In file included from /home/buildbot/repos/linux/include/linux/bitops.h=
:35:0,
                 from /home/buildbot/repos/linux/include/asm-generic/ge=
torder.h:7,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/page.h:162,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/pdc.h:346,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/processor.h:16,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/spinlock.h:6,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/atomic.h:20,
                 from /home/buildbot/repos/linux/include/linux/atomic.h=
:4,
                 from /home/buildbot/repos/linux/include/linux/sysfs.h:=
20,
                 from /home/buildbot/repos/linux/include/linux/kobject.=
h:21,
                 from /home/buildbot/repos/linux/include/linux/device.h=
:17,
                 from /home/buildbot/repos/linux/include/linux/eisa.h:5=
,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/pci=
=2Ec:11:
/home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h: In functio=
n =E2=80=98set_bit=E2=80=99:
/home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:82:2: error=
: implicit declaration of function =E2=80=98_atomic_spin_lock_irqsave=E2=
=80=99 [-Werror=3Dimplicit-function-declaration]
/home/buildbot/repos/linux/arch/parisc/include/asm/bitops.h:84:2: error=
: implicit declaration of function =E2=80=98_atomic_spin_unlock_irqrest=
ore=E2=80=99 [-Werror=3Dimplicit-function-declaration]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 arch/parisc/include/asm/page.h  |    6 ++++++
 arch/parisc/include/asm/pdc.h   |    7 -------
 arch/parisc/kernel/pdc_cons.c   |    1 +
 arch/parisc/kernel/time.c       |    1 +
 drivers/parisc/sba_iommu.c      |    1 +
 drivers/video/console/sticore.c |    2 ++
 6 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/p=
age.h
index a84cc1f..4e0e7db 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -160,5 +160,11 @@ extern int npmem_ranges;
=20
 #include <asm-generic/memory_model.h>
 #include <asm-generic/getorder.h>
+#include <asm/pdc.h>
+
+#define PAGE0   ((struct zeropage *)__PAGE_OFFSET)
+
+/* DEFINITION OF THE ZERO-PAGE (PAG0) */
+/* based on work by Jason Eckhardt (jason@equator.com) */
=20
 #endif /* _PARISC_PAGE_H */
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pd=
c.h
index 4ca510b..7f0f2d2 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -343,8 +343,6 @@
=20
 #ifdef __KERNEL__
=20
-#include <asm/page.h> /* for __PAGE_OFFSET */
-
 extern int pdc_type;
=20
 /* Values for pdc_type */
@@ -677,11 +675,6 @@ static inline char * os_id_to_string(u16 os_id) {
=20
 #endif /* __KERNEL__ */
=20
-#define PAGE0   ((struct zeropage *)__PAGE_OFFSET)
-
-/* DEFINITION OF THE ZERO-PAGE (PAG0) */
-/* based on work by Jason Eckhardt (jason@equator.com) */
-
 /* flags of the device_path */
 #define	PF_AUTOBOOT	0x80
 #define	PF_AUTOSEARCH	0x40
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_con=
s.c
index 4f00459..9bbd2a5 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -50,6 +50,7 @@
 #include <linux/init.h>
 #include <linux/major.h>
 #include <linux/tty.h>
+#include <asm/page.h>		/* for PAGE0 */
 #include <asm/pdc.h>		/* for iodc_call() proto and friends */
=20
 static DEFINE_SPINLOCK(pdc_console_lock);
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 7c07743..70e105d 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -29,6 +29,7 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/irq.h>
+#include <asm/page.h>
 #include <asm/param.h>
 #include <asm/pdc.h>
 #include <asm/led.h>
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 8644d53..42cfcd9 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -44,6 +44,7 @@
 #include <asm/ropes.h>
 #include <asm/mckinley.h>	/* for proc_mckinley_root */
 #include <asm/runway.h>		/* for proc_runway_root */
+#include <asm/page.h>		/* for PAGE0 */
 #include <asm/pdc.h>		/* for PDC_MODEL_* */
 #include <asm/pdcpat.h>		/* for is_pdc_pat() */
 #include <asm/parisc-device.h>
diff --git a/drivers/video/console/sticore.c b/drivers/video/console/st=
icore.c
index 6468a29..39571f9 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -22,7 +22,9 @@
 #include <linux/font.h>
=20
 #include <asm/hardware.h>
+#include <asm/page.h>
 #include <asm/parisc-device.h>
+#include <asm/pdc.h>
 #include <asm/cacheflush.h>
 #include <asm/grfioctl.h>
=20
--=20
1.7.9.2


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Since d66acc39c7cee323733c8503b9de1821a56dff7e (bitops: Optimise get_order())
getorder.h includes log2.h which leads to an include loop on PA-RISC, bringing 
a bunch of other breakage to light. This patchset fixes the compilation of the 
current state of 3.4 on HPPA.

Unchanged against the first version, just added an Ack by Grant.

Rolf Eike Beer (5):
  parisc: add missing includes in asm/spinlock.h
  parisc: add missing forward declarations in asm/hardware.h
  parisc: drop include of asm/pdc.h from asm/hardware.h
  parisc: add missing include of asm/page.h to asm/pgtable.h
  parisc: move definition of PAGE0 to asm/page.h

 arch/parisc/include/asm/hardware.h |    3 ++-
 arch/parisc/include/asm/page.h     |    6 ++++++
 arch/parisc/include/asm/pdc.h      |    7 -------
 arch/parisc/include/asm/pgtable.h  |    2 ++
 arch/parisc/include/asm/spinlock.h |    2 ++
 arch/parisc/kernel/pdc_cons.c      |    1 +
 arch/parisc/kernel/time.c          |    1 +
 drivers/parisc/sba_iommu.c         |    1 +
 drivers/video/console/sticore.c    |    2 ++
 include/asm-generic/getorder.h     |    2 +-
 10 files changed, 18 insertions(+), 9 deletions(-)

-- 
1.7.9.2
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From - Thu Nov 08 21:08:12 2018
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Subject: [PATCH 1/5] parisc: add missing includes in asm/spinlock.h
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This leads to this errors:

In file included from /home/buildbot/repos/linux/arch/parisc/include/as=
m/atomic.h:20:0,
                 from /home/buildbot/repos/linux/include/linux/atomic.h=
:4,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/bitops.h:56,
                 from /home/buildbot/repos/linux/include/linux/bitops.h=
:22,
                 from /home/buildbot/repos/linux/include/linux/kernel.h=
:19,
                 from /home/buildbot/repos/linux/include/linux/sched.h:=
55,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/asm=
-offsets.c:31:
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h: In funct=
ion =E2=80=98arch_spin_is_locked=E2=80=99:
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:9:2: erro=
r: implicit declaration of function =E2=80=98__ldcw_align=E2=80=99 [-We=
rror=3Dimplicit-function-declaration]
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:9:29: war=
ning: initialization makes pointer from integer without a cast [enabled=
 by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h: In funct=
ion =E2=80=98arch_spin_lock_flags=E2=80=99:
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:22:2: err=
or: implicit declaration of function =E2=80=98mb=E2=80=99 [-Werror=3Dim=
plicit-function-declaration]
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:23:4: war=
ning: assignment makes pointer from integer without a cast [enabled by =
default]
/home/buildbot/repos/linux/arch/parisc/include/asm/spinlock.h:24:2: err=
or: implicit declaration of function =E2=80=98__ldcw=E2=80=99 [-Werror=3D=
implicit-function-declaration]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 arch/parisc/include/asm/spinlock.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/a=
sm/spinlock.h
index 804aa28..3516e0b 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -1,6 +1,8 @@
 #ifndef __ASM_SPINLOCK_H
 #define __ASM_SPINLOCK_H
=20
+#include <asm/barrier.h>
+#include <asm/ldcw.h>
 #include <asm/processor.h>
 #include <asm/spinlock_types.h>
=20
--=20
1.7.9.2



From - Thu Nov 08 21:08:12 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 2/5] parisc: add missing forward declarations in asm/hardware.h
Date: Thu, 10 May 2012 23:01:40 +0200
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To: linux-parisc@vger.kernel.org
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=46ixes this warnings:

In file included from /home/buildbot/repos/linux/arch/parisc/include/as=
m/processor.h:15:0,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/spinlock.h:4,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/atomic.h:20,
                 from /home/buildbot/repos/linux/include/linux/atomic.h=
:4,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/bitops.h:11,
                 from /home/buildbot/repos/linux/include/linux/bitops.h=
:22,
                 from /home/buildbot/repos/linux/include/linux/kernel.h=
:19,
                 from /home/buildbot/repos/linux/include/linux/sched.h:=
55,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/asm=
-offsets.c:31:
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:106:10: w=
arning: =E2=80=98struct hardware_path=E2=80=99 declared inside paramete=
r list [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:106:10: w=
arning: its scope is only this definition or declaration, which is prob=
ably not what you want [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:116:59: w=
arning: =E2=80=98struct hardware_path=E2=80=99 declared inside paramete=
r list [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:118:47: w=
arning: =E2=80=98struct hardware_path=E2=80=99 declared inside paramete=
r list [enabled by default]
/home/buildbot/repos/linux/arch/parisc/include/asm/hardware.h:119:57: w=
arning: =E2=80=98struct hardware_path=E2=80=99 declared inside paramete=
r list [enabled by default]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 arch/parisc/include/asm/hardware.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/include/asm/hardware.h b/arch/parisc/include/a=
sm/hardware.h
index 4e96268..036e703 100644
--- a/arch/parisc/include/asm/hardware.h
+++ b/arch/parisc/include/asm/hardware.h
@@ -95,12 +95,14 @@ struct bc_module {
 #define HPHW_MC	       15
 #define HPHW_FAULTY    31
=20
+struct parisc_device_id;
=20
 /* hardware.c: */
 extern const char *parisc_hardware_description(struct parisc_device_id=
 *id);
 extern enum cpu_type parisc_get_cpu_type(unsigned long hversion);
=20
 struct pci_dev;
+struct hardware_path;
=20
 /* drivers.c: */
 extern struct parisc_device *alloc_pa_dev(unsigned long hpa,
--=20
1.7.9.2


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From - Thu Nov 08 21:08:13 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 3/5] parisc: drop include of asm/pdc.h from asm/hardware.h
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It seems none of the symbols defined by pdc.h is needed, but it introdu=
ces an
include loop causing compile errors:

In file included from /home/buildbot/repos/linux/arch/parisc/include/as=
m/spinlock.h:4:0,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/atomic.h:20,
                 from /home/buildbot/repos/linux/include/linux/atomic.h=
:4,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/bitops.h:56,
                 from /home/buildbot/repos/linux/include/linux/bitops.h=
:35,
                 from /home/buildbot/repos/linux/include/asm-generic/ge=
torder.h:7,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/page.h:162,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/pdc.h:346,
                 from /home/buildbot/repos/linux/arch/parisc/include/as=
m/hardware.h:5,
                 from /home/buildbot/repos/linux/arch/parisc/kernel/har=
dware.c:30:
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:74:16: e=
rror: field =E2=80=98cpu_type=E2=80=99 has incomplete type
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:77:20: e=
rror: field =E2=80=98model=E2=80=99 has incomplete type
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h: In func=
tion =E2=80=98parisc_requires_coherency=E2=80=99:
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:349:36: =
error: =E2=80=98mako=E2=80=99 undeclared (first use in this function)
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:349:36: =
note: each undeclared identifier is reported only once for each functio=
n it appears in
/home/buildbot/repos/linux/arch/parisc/include/asm/processor.h:350:30: =
error: =E2=80=98mako2=E2=80=99 undeclared (first use in this function)

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Acked-by: Grant Grundler <grantgrundler@gmail.com>
---
 arch/parisc/include/asm/hardware.h |    1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/parisc/include/asm/hardware.h b/arch/parisc/include/a=
sm/hardware.h
index 036e703..d1d864b 100644
--- a/arch/parisc/include/asm/hardware.h
+++ b/arch/parisc/include/asm/hardware.h
@@ -2,7 +2,6 @@
 #define _PARISC_HARDWARE_H
=20
 #include <linux/mod_devicetable.h>
-#include <asm/pdc.h>
=20
 #define HWTYPE_ANY_ID		PA_HWTYPE_ANY_ID
 #define HVERSION_ANY_ID		PA_HVERSION_ANY_ID
--=20
1.7.9.2


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From: Linus Torvalds <torvalds@linux-foundation.org>
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Subject: Re: [PATCH 0/5] PA-RISC: fix compile
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On Thu, May 10, 2012 at 1:50 PM, Rolf Eike Beer <eike-kernel@sf-tec.de>=
 wrote:
>
> =A0arch/parisc/include/asm/hardware.h | =A0 =A03 ++-
> =A0arch/parisc/include/asm/page.h =A0 =A0 | =A0 =A06 ++++++
> =A0arch/parisc/include/asm/pdc.h =A0 =A0 =A0| =A0 =A07 -------
> =A0arch/parisc/include/asm/pgtable.h =A0| =A0 =A02 ++
> =A0arch/parisc/include/asm/spinlock.h | =A0 =A02 ++
> =A0arch/parisc/kernel/pdc_cons.c =A0 =A0 =A0| =A0 =A01 +
> =A0arch/parisc/kernel/time.c =A0 =A0 =A0 =A0 =A0| =A0 =A01 +
> =A0drivers/parisc/sba_iommu.c =A0 =A0 =A0 =A0 | =A0 =A01 +
> =A0drivers/video/console/sticore.c =A0 =A0| =A0 =A02 ++
> =A0include/asm-generic/getorder.h =A0 =A0 | =A0 =A02 +-
> =A010 files changed, 18 insertions(+), 9 deletions(-)

The diffstat doesn't match the actual patches - there are no getorder.h=
 changes.

Hmm?

                  Linus
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Subject: Re: [PATCH 0/5] PA-RISC: fix compile
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Linus Torvalds wrote:
> On Thu, May 10, 2012 at 1:50 PM, Rolf Eike Beer <eike-kernel@sf-tec.de> 
wrote:
> >  arch/parisc/include/asm/hardware.h |    3 ++-
> >  arch/parisc/include/asm/page.h     |    6 ++++++
> >  arch/parisc/include/asm/pdc.h      |    7 -------
> >  arch/parisc/include/asm/pgtable.h  |    2 ++
> >  arch/parisc/include/asm/spinlock.h |    2 ++
> >  arch/parisc/kernel/pdc_cons.c      |    1 +
> >  arch/parisc/kernel/time.c          |    1 +
> >  drivers/parisc/sba_iommu.c         |    1 +
> >  drivers/video/console/sticore.c    |    2 ++
> >  include/asm-generic/getorder.h     |    2 +-
> >  10 files changed, 18 insertions(+), 9 deletions(-)
> 
> The diffstat doesn't match the actual patches - there are no getorder.h
> changes.
> 
> Hmm?

Yes, sorry. That diffstat is of the old patch series that included the 
getorder.h patch I now sent to you seperately as it doesn't have to do with 
the compile breakage itself.

Eike
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From: Vincent <vincent.stehle@laposte.net>
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On 05/10/2012 06:32 PM, John David Anglin wrote:
(..)
> I asked where the crash occurred because PA 2.0 mnemonics are used in
> the tmpalias
> code.  On the other hand, if the failure occurs on the first flush
> instruction, the issue is likely
> in the TLB insert code in entry.S.

Hi John,

I think the crash occurs at the first 'fdc,m r1(ret0)', but I don't read
PA assembly that much, so you might want to cross-check by yourself :)
Here is the crash dump:

---
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
swapper (pid 1): Illegal instruction (code 8)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000000000000000000000000 Not tainted
r00-03  00000000 00000001 1019d550 105ebbc0
r04-07  00000000 00000017 16640000 ffeffff6
r08-11  0f2ff000 0f000000 00000001 fff00ff6
r12-15  1742c000 00000017 00000000 00000020
r16-19  00000000 00000043 1662f000 fffff000
r20-23  000005de 00118277 00000001 00000020
r24-27  00000000 00000000 0000bbc0 104f2000
r28-31  0f2ff000 00000001 17430600 102691d8
sr00-03  00000000 00000001 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10100c10 10100c14
 IIR: 078112a0    ISR: 00000000  IOR: 0f2ff000
 CPU:        0   CR30: 17430000 CR31: 00000002
 ORIG_R28: 1662f000
 IAOQ[0]: flush_dcache_page_asm+0x28/0x7c
 IAOQ[1]: flush_dcache_page_asm+0x2c/0x7c
 RP(r2): __get_user_pages+0x2c8/0x370
Backtrace:
 [<1019d550>] __get_user_pages+0x2c8/0x370
 [<101bcf8c>] get_arg_page+0x5c/0x108
 [<101bd250>] copy_strings+0x114/0x25c
 [<101bd3b4>] copy_strings_kernel+0x1c/0x30
 [<101be78c>] do_execve+0x1f4/0x370
 [<101180a0>] sys_execve+0x44/0x70
 [<10103084>] __execve+0x20/0x34
 [<1012a224>] vprintk+0x39c/0x3f0
 [<1010e074>] printk+0x24/0x30
 [<101110cc>] init_post+0x6c/0x148
 [<105a1624>] kernel_init+0x218/0x250

Backtrace:
 [<1011329c>] die_if_kernel+0x138/0x1b0
 [<101134ec>] handle_interruption+0x1d8/0x6d8
 [<10104078>] intr_check_sig+0x0/0x34
 [<1018975c>] __alloc_pages_nodemask+0x1a4/0x688
---

And here is the disassembly of function flush_dcache_page_asm:

---
10100be8 <flush_dcache_page_asm>:
10100be8:       23 80 01 e0     ldil L%f000000,ret0
10100bec:       d3 5a 1b 07     extrw,u r26,24,25,r26
10100bf0:       d7 99 0c 0a     depw r25,31,22,ret0
10100bf4:       d7 80 1c 14     depwi 0,31,12,ret0
10100bf8:       07 80 12 00     pdtlb r0(ret0)
10100bfc:       20 39 c2 08     ldil L%104f2000,r1
10100c00:       48 21 00 b8     ldw 5c(r1),r1
10100c04:       d7 22 19 9f     depwi,z 1,19,1,r25
10100c08:       0b 3c 06 39     add ret0,r25,r25
10100c0c:       08 39 04 39     sub r25,r1,r25
10100c10:       07 81 12 a0     fdc,m r1(ret0)
10100c14:       07 81 12 a0     fdc,m r1(ret0)
10100c18:       07 81 12 a0     fdc,m r1(ret0)
10100c1c:       07 81 12 a0     fdc,m r1(ret0)
10100c20:       07 81 12 a0     fdc,m r1(ret0)
10100c24:       07 81 12 a0     fdc,m r1(ret0)
10100c28:       07 81 12 a0     fdc,m r1(ret0)
10100c2c:       07 81 12 a0     fdc,m r1(ret0)
10100c30:       07 81 12 a0     fdc,m r1(ret0)
10100c34:       07 81 12 a0     fdc,m r1(ret0)
10100c38:       07 81 12 a0     fdc,m r1(ret0)
10100c3c:       07 81 12 a0     fdc,m r1(ret0)
10100c40:       07 81 12 a0     fdc,m r1(ret0)
10100c44:       07 81 12 a0     fdc,m r1(ret0)
10100c48:       07 81 12 a0     fdc,m r1(ret0)
10100c4c:       83 3c 9f 7d     cmpb,<< ret0,r25,10100c10
<flush_dcache_page_asm+0x28>
10100c50:       07 81 12 a0     fdc,m r1(ret0)
10100c54:       00 00 04 00     sync
10100c58:       07 20 12 00     pdtlb r0(r25)
10100c5c:       e8 40 c0 00     bv r0(rp)
10100c60:       08 00 02 40     nop
---

Best regards,

V.
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Path: news.gmane.org!not-for-mail
From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
Date: Sun, 13 May 2012 00:50:43 +0200
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Cc: Vincent <vincent.stehle@laposte.net>,
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On 05/10/2012 04:03 AM, John David Anglin wrote:
> On 9-May-12, at 5:14 PM, Vincent wrote:
>
>> On 05/09/2012 05:55 PM, John David Anglin wrote:
>>> Attached is an updated version.   It applies against 3.3.4.
>>
>> Thanks. It applies on v3.4-rc6 with no issue. However, it crashes at
>> boot in flush_dcache_page_asm.
>
>
> I want to make a general comment.
>
> The hp712/100 is an old machine.  There is no longer ANY support for
> parisc open source by HP.  If the parisc user community wants to continue
> to run current open source software, then it will have to work 
> together to
> achieve this goal.
>
> In this case, we need to figure out what is wrong with the tmpalias code
> on the hp712/100.
>
> Debian dropping hppa after the lenny release was a wake up call.  There
> is pressure on other fronts.  See for example the following thread,
> http://gcc.gnu.org/ml/gcc/2012-05/msg00093.html
>
> If accepted, it would mean the end of 32-bit GCC development for parisc,
> and therefore the end of parisc linux and netbsd systems.  More 
> specifically,
> it may be reasonable to drop support for PA 1.1 systems.  So, we need
> to hear why it is important to continue to try to maintain PA 1.1 
> systems.
>
> In general, I have found Debian package maintainers to be supportive
> of bug fixes for parisc.  Most packages still support parisc and build 
> without
> problems but there is some porting work that needs doing.  For example,
> mono has seriously rotted.  Without a viable userspace, there's not much
> point to maintaining the kernel.
>
> I applaud Mikulas for reviewing Rolf Eike's fixes for 3.4 and posting 
> them to the
> linux-kernel list.  Maintainers have personal time issues and can't 
> always be
> available.
>
> I have spent hundreds of hours building packages, working on GCC,
> binutils, glibc and kernel bugs over the past year.  I have pushed fixes
> upstream and back ported them as quickly as possible because it takes
> considerable time before the fixes start to percolate downstream.
>
> I have a project to restart a Debian buildd for parisc and help would be
> appreciated.  The key issue is help in reporting and analyzing package
> bugs. and informing the appropriate maintainers when there are problems.
>
> I posted a number of kernel work in progress patches to the linux-parisc
> list but nobody bothered to test them except for Vincent today.  All I 
> know
> at this point is my rp3440 is much more stable and runs twice as fast as
> it used to with my cache patch.  As such, it can keep up with unstable.
> This took hundreds of kernel builds and considerable long term testing.
>
> The problem with cache bugs is they are difficult.  The parisc 
> architecture
> and the linux requirements for cache routines are inadequately 
> documented.
> So, it has become a trial and error exercise.  This has always been the
> critical problem for parisc-linux and the code in cache.c reflects this.
>
> It is impossible for volunteers to run and maintain a broad range of
> hardware.  So, we need to focus on the hardware that is used and will
> continue to used over the next few years.  If users want support, then
> they need to be willing to help as well.

Hi Dave,

I have my machines now up and running again.

I tested upstream version (bcc62fb) and got on all my machines the same 
bug (same Kernel binary started on all):

Backtrace:
  [<1021dc3c>] mpage_readpages+0xf0/0x16c
  [<10257e88>] ext3_readpages+0x28/0x38
  [<101acb90>] __do_page_cache_readahead+0x1e0/0x27c
  [<101acc5c>] ra_submit+0x30/0x40
  [<101acee0>] ondemand_readahead+0xd0/0x26c

or

Backtrace:
  [<1021dc3c>] mpage_readpages+0xf0/0x16c
  [<10257e88>] ext3_readpages+0x28/0x38
  [<101acb90>] __do_page_cache_readahead+0x1e0/0x27c
  [<101acc5c>] ra_submit+0x30/0x40
  [<101acee0>] ondemand_readahead+0xd0/0x26c
  [<101ad1a8>] page_cache_sync_readahead+0x44/0x74
  [<101a38e4>] generic_file_aio_read+0x400/0x764
  [<101e243c>] do_sync_read+0xd4/0x130
  [<101e32f4>] vfs_read+0xac/0x158
  [<101ea47c>] kernel_read+0x40/0x5c
  [<101ea58c>] prepare_binprm+0xf4/0x130
  [<101eae3c>] do_execve+0x2b8/0x3a4
  [<1012199c>] sys_execve+0x64/0x94
  [<10104084>] __execve+0x20/0x34
  [<10136374>] vprintk+0x1e8/0x488
  [<101a83e8>] __free_pages+0x54/0x64


all logs attached for the 715/64, B160L and C3000 machines.

I'll test tomorrow your patch (but will try to update my binutils/gcc 
prior to that).

Helge




--------------000702020506000603020803
Content-Type: text/plain;
 name="b160L.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="b160L.log"

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'HOME=/ root=/dev/sda3 pa64root=sda5 ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 32-bit kernelELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 6647808 mediaptr 0x1000
Segment 1 load 007a0000 size 185472 mediaptr 0x658000
Segment 2 load 007ce000 size 145080 mediaptr 0x686000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 3.4.0-rc6-32bit+ (deller@p100) (gcc version 4.3.3 (GCC) ) #7 Sat May 12 22:55:41 CEST 2012
unwind_init: start = 0x106a8000, end = 0x106ebdc0, entries = 17372
WARNING: Out of order unwind entry! 106a95c0 and 106a95d0
WARNING: Out of order unwind entry! 106a95d0 and 106a95e0
WARNING: Out of order unwind entry! 106aa090 and 106aa0a0
WARNING: Out of order unwind entry! 106aa0a0 and 106aa0b0
WARNING: Out of order unwind entry! 106aa110 and 106aa120
WARNING: Out of order unwind entry! 106aa120 and 106aa130
WARNING: Out of order unwind entry! 106aa140 and 106aa150
WARNING: Out of order unwind entry! 106aa150 and 106aa160
WARNING: Out of order unwind entry! 106aa160 and 106aa170
WARNING: Out of order unwind entry! 106aa170 and 106aa180
WARNING: Out of order unwind entry! 106aa180 and 106aa190
WARNING: Out of order unwind entry! 106aa190 and 106aa1a0
WARNING: Out of order unwind entry! 106aa1a0 and 106aa1b0
WARNING: Out of order unwind entry! 106aa1b0 and 106aa1c0
WARNING: Out of order unwind entry! 106aa1c0 and 106aa1d0
WARNING: Out of order unwind entry! 106aa1d0 and 106aa1e0
WARNING: Out of order unwind entry! 106aa1e0 and 106aa1f0
WARNING: Out of order unwind entry! 106aa1f0 and 106aa200
WARNING: Out of order unwind entry! 106aa210 and 106aa220
WARNING: Out of order unwind entry! 106aa220 and 106aa230
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005020 00000481 00000000 02020202 7794d7fe 100000f0 00000004 000000ba 000000ba
vers  00000008
CPUID vers 15 rev 8 (0x000001e8)
capabilities 0x2
model 9000/778/B160L
Total Memory: 128 MB
LED display at f0190001 registered
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32512
Kernel command line: HOME=/ root=/dev/sda3 pa64root=sda5 ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
allocated 262144 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
Memory: 122356k/131072k available (4505k kernel code, 8716k reserved, 1964k data, 328k init)
virtual kernel memory layout:
    vmalloc : 0x00810000 - 0x0f000000   ( 231 MB)
    memory  : 0x10000000 - 0x18000000   ( 128 MB)
      .init : 0x107a0000 - 0x107f2000   ( 328 kB)
      .data : 0x10566690 - 0x107517b0   (1964 kB)
      .text : 0x10100000 - 0x10566690   (4505 kB)
NR_IRQS:96
Console: colour dummy device 128x48
Calibrating delay loop... 106.39 BogoMIPS (lpj=531968)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys blkio
xor: measuring software checksum speed
   8regs     :   131.200 MB/sec
   8regs_prefetch:   130.800 MB/sec
   32regs    :   206.400 MB/sec
   32regs_prefetch:   206.000 MB/sec
xor: using function: 32regs (206.400 MB/sec)
atomic64 test passed
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Phantom PseudoBC GSC+ Port at 0xffc00000 [8] { 7, 0x0, 0x504, 0x00000 }
2. Dino PCI Bridge at 0xfff80000 [8/0] { 13, 0x3, 0x680, 0x0000a }
3. Merlin+ 132 Dino RS-232 at 0xfff83000 [8/0/63] { 10, 0x0, 0x022, 0x0008c }
4. Merlin 160 Core FW-SCSI at 0xfff8c000 [8/12] { 4, 0x0, 0x03d, 0x00089 }
5. Merlin 160 Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x03d, 0x00081 }, additional addresses: 0xffd0c000 0xffc00000 
6. Merlin 160 Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x03d, 0x0008c }
7. Merlin 160 Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x03d, 0x00082 }
8. Merlin 160 Core LAN (802.3) at 0xffd07000 [8/16/6] { 10, 0x0, 0x03d, 0x0008a }
9. Merlin 160 Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x03d, 0x00074 }, additional addresses: 0xffd01000 0xffd03000 
10. Merlin 160 Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x03d, 0x0007b }
11. Merlin 160 Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x03d, 0x00084 }
12. Merlin 160 Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x03d, 0x00084 }
13. Coral SGC Graphics at 0xfa000000 [8/4] { 10, 0x0, 0x004, 0x00077 }
14. Coral SGC Graphics at 0xf4000000 [8/8] { 10, 0x0, 0x004, 0x00077 }
15. Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 0x00085 }, additional addresses: 0xf0011000 
16. Merlin L2 160 (9000/778/B160L) at 0xfffbe000 [62] { 0, 0x0, 0x502, 0x00004 }
17. Memory at 0xfffbf000 [63] { 1, 0x0, 0x067, 0x00009 }
18. Merlin+ 132 Dino PS/2 Port at 0xfff81000 [1] { 10, 0x0, 0x022, 0x00096 }
CPU(s): 1 x PA7300LC (PCX-L2) at 160.000000 MHz
Setting cache flush threshold to 920 (1 CPUs online)
Lasi version 0 at 0xffd00000 found.
Dino version 3.1 found at 0xfff80000
Dino: No PCI devices enabled.
dino 8:0: PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
powersw: Soft power switch at 0xf0140000 enabled.
bio: create slab <bio-0> at 0
raid6: int32x1     59 MB/s
raid6: int32x2     72 MB/s
raid6: int32x4     89 MB/s
raid6: int32x8     49 MB/s
raid6: using algorithm int32x4 (89 MB/s)
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Switching to clocksource cr16
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 4, 81920 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP: reno registered
UDP hash table entries: 128 (order: 0, 6144 bytes)
UDP-Lite hash table entries: 128 (order: 0, 6144 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Enabling PDC chassis warnings support v0.05
Initializing RT-Tester: OK
====[ backtrace testing ]===========
Testing a backtrace from process context.
The following trace is a kernel self test and not a bug!
Backtrace:
 [<1011b070>] show_stack+0x18/0x28
 [<101148f8>] dump_stack+0x1c/0x2c
 [<10181098>] backtrace_regression_test+0x50/0x130
 [<10118eac>] do_one_initcall+0x54/0x284
 [<107a1abc>] kernel_init+0x1a8/0x270
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a backtrace from irq context.
The following trace is a kernel self test and not a bug!
Backtrace:
 [<1011b070>] show_stack+0x18/0x28
 [<101148f8>] dump_stack+0x1c/0x2c
 [<10181028>] backtrace_test_irq_callback+0x18/0x38
 [<1013b96c>] tasklet_action+0x80/0xe4
 [<1018ffc0>] rcu_process_callbacks+0x30/0x40
 [<1013c2e0>] __do_softirq+0x148/0x198
 [<1013c39c>] run_ksoftirqd+0x6c/0x120
 [<101174bc>] schedule+0x30/0x74
 [<101546f4>] kthread+0xac/0xb4
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a saved backtrace.
The following trace is a kernel self test and not a bug!
 [<10124bd4>] save_stack_trace+0x28/0x60
 [<10181140>] backtrace_regression_test+0xf8/0x130
 [<10118eac>] do_one_initcall+0x54/0x284
 [<107a1abc>] kernel_init+0x1a8/0x270
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24
 [<ffffffff>] 0xffffffff
====[ end of backtrace testing ]====
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
msgmni has been set to 238
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
start plist test
end plist test
PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9a
    id 2bcb015a-9a02587, conforms to spec rev. 8.04
    graphics card name: HPA4071B
    id 2d08c0a7-9a02587, conforms to spec rev. 8.07
    graphics card name: HPA4450AX1024
    id 2d08c0a7-9a02587, conforms to spec rev. 8.07
    graphics card name: INTERNAL_EG_X1024
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, HPA4071B, id: 2bcb015a, mmio: 0xfa100000
fb1: stifb 1024x768-8 frame buffer device, HPA4450AX1024, id: 2d08c0a7, mmio: 0xf4100000
fb2: stifb 1024x768-8 frame buffer device, INTERNAL_EG_X1024, id: 2d08c0a7, mmio: 0xf8100000
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
8:16:4: ttyS0 at MMIO 0xffd05800 (irq = 16) is a 16550A
console [ttyS0] enabled, bootconsole disabled
console [ttyS0] enabled, bootconsole disabled
8:0:63: ttyS1 at MMIO 0xfff83800 (irq = 22) is a 16550A
Linux agpgart interface v0.103
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 19 [PCSPP,TRISTATE]
parport0: fix this legacy no-device port driver!
brd: module loaded
loop: module loaded
Uniform Multi-Platform E-IDE driver
ide-gd driver 1.18
ide-cd driver 5.00
zalon_probe: Zalon version 1, IRQ 67
ncr53c720-0: rev 0xf irq 67
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3g
scsi 0:0:6:0: Direct-Access     SEAGATE  ST32171W         HP03 PQ: 0 ANSI: 2
scsi target0:0:6: Beginning Domain Validation
scsi target0:0:6: asynchronous
scsi target0:0:6: wide asynchronous
scsi target0:0:6: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
scsi target0:0:6: Domain Validation skipping write tests
scsi target0:0:6: Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
scsi 1:0:1:0: CD-ROM            PHILIPS  PCA80SC          V3-0 PQ: 0 ANSI: 2
scsi target1:0:1: Beginning Domain Validation
scsi target1:0:1: asynchronous
scsi target1:0:1: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 8)
scsi target1:0:1: Domain Validation skipping write tests
scsi target1:0:1: Ending Domain Validation
st: Version 20101219, fixed bufsize 32768, s/g segs 256
sd 0:0:6:0: [sda] 4194685 512-byte logical blocks: (2.14 GB/2.00 GiB)
sd 0:0:6:0: [sda] Write Protect is off
sr0: scsi-1 drive
cdrom: Uniform CD-ROM driver Revision: 3.20
sd 0:0:6:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
sd 0:0:6:0: Attached scsi generic sg0 type 0
sr 1:0:1:0: Attached scsi generic sg1 type 5
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xffd07000, IRQ 18
eth0: 82596 at 0xffd07000, 08:00:09:ef:34:f5 IRQ 18.
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
uhci_hcd: USB Universal Host Controller Interface driver
serio: gsc-ps2-keyboard port at 0x0081a000 irq 21 @ 8:16:7
serio: gsc-ps2-mouse port at 0x0081c100 irq 21 @ 8:16:8
 sda: sda1 sda2 sda3 < sda5 sda6 >
mousedev: PS/2 mouse device common for all mice
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: raid10 personality registered for level 10
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
device-mapper: uevent: version 1.0.3
sd 0:0:6:0: [sda] Attached SCSI disk
device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: dm-devel@redhat.com
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
oprofile: using timer interrupt.
TCP: cubic registered
NET: Registered protocol family 17
rtc-generic rtc-generic: setting system clock to 1987-04-12 22:08:53 UTC (545263733)
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 192.168.178.50, my address is 192.168.178.65
IP-Config: Complete:
     device=eth0, addr=192.168.178.65, mask=255.255.255.0, gw=192.168.178.1
     host=b160, domain=box, nis-domain=(none)
     bootserver=192.168.178.50, rootserver=192.168.178.50, rootpath=
md: Waiting for all devices to be available before autodetect
md: If you don't use raid, use raid=noautodetect
md: Autodetecting RAID arrays.
md: Scanned 0 and added 0 devices.
md: autorun ...
md: ... autorun DONE.
attempt to access beyond end of device
sda3: rw=0, want=4, limit=2
EXT3-fs (sda3): error: unable to read superblock
attempt to access beyond end of device
sda3: rw=0, want=4, limit=2
EXT2-fs (sda3): error: unable to read superblock
swapper: sending ioctl 5310 to a partition!
swapper: sending ioctl 5310 to a partition!
attempt to access beyond end of device
sda3: rw=0, want=66, limit=2
isofs_fill_super: bread failed, dev=sda3, iso_blknum=16, block=32
List of all partitions:
0b00         1048575 sr0  driver: sr
0800         2097342 sda  driver: sd
  0801           32098 sda1 00000000-0000-0000-0000-000000000000
  0802          128520 sda2 00000000-0000-0000-0000-000000000000
  0803               1 sda3 00000000-0000-0000-0000-000000000000
  0805         1791216 sda5 00000000-0000-0000-0000-000000000000
  0806          144553 sda6 00000000-0000-0000-0000-000000000000
No filesystem could mount root, tried:  ext3 ext2 vfat iso9660
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,3)
Backtrace:
 [<1011b070>] show_stack+0x18/0x28
 [<101148f8>] dump_stack+0x1c/0x2c
 [<101149dc>] panic+0xd4/0x28c
 [<107a292c>] mount_block_root+0x254/0x28c
 [<107a2a10>] mount_root+0xac/0x138
 [<107a2b38>] prepare_namespace+0x9c/0x1f4
 [<107a1b28>] kernel_init+0x214/0x270
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24


--------------000702020506000603020803
Content-Type: text/plain;
 name="c3000.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="c3000.log"

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'HOME=/ root=/dev/sda3 pa64root=sda5 ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... 
This box can boot either 32 or 64-bit kernels...Only see a 32-bit kernel, using thatELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 6647808 mediaptr 0x1000
Segment 1 load 007a0000 size 185472 mediaptr 0x658000
Segment 2 load 007ce000 size 145080 mediaptr 0x686000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 3.4.0-rc6-32bit+ (deller@p100) (gcc version 4.3.3 (GCC) ) #7 Sat May 12 22:55:41 CEST 2012
unwind_init: start = 0x106a8000, end = 0x106ebdc0, entries = 17372
WARNING: Out of order unwind entry! 106a95c0 and 106a95d0
WARNING: Out of order unwind entry! 106a95d0 and 106a95e0
WARNING: Out of order unwind entry! 106aa090 and 106aa0a0
WARNING: Out of order unwind entry! 106aa0a0 and 106aa0b0
WARNING: Out of order unwind entry! 106aa110 and 106aa120
WARNING: Out of order unwind entry! 106aa120 and 106aa130
WARNING: Out of order unwind entry! 106aa140 and 106aa150
WARNING: Out of order unwind entry! 106aa150 and 106aa160
WARNING: Out of order unwind entry! 106aa160 and 106aa170
WARNING: Out of order unwind entry! 106aa170 and 106aa180
WARNING: Out of order unwind entry! 106aa180 and 106aa190
WARNING: Out of order unwind entry! 106aa190 and 106aa1a0
WARNING: Out of order unwind entry! 106aa1a0 and 106aa1b0
WARNING: Out of order unwind entry! 106aa1b0 and 106aa1c0
WARNING: Out of order unwind entry! 106aa1c0 and 106aa1d0
WARNING: Out of order unwind entry! 106aa1d0 and 106aa1e0
WARNING: Out of order unwind entry! 106aa1e0 and 106aa1f0
WARNING: Out of order unwind entry! 106aa1f0 and 106aa200
WARNING: Out of order unwind entry! 106aa210 and 106aa220
WARNING: Out of order unwind entry! 106aa220 and 106aa230
FP[0] enabled: Rev 1 Model 19
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005dc0 00000481 00000000 00000002 777c3e84 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 19 rev 11 (0x0000026b)
capabilities 0x7
model 9000/785/C3700
Total Memory: 2048 MB
LCD display at f05d0008,f05d0000 registered
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 520192
Kernel command line: HOME=/ root=/dev/sda3 pa64root=sda5 ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 4096 (order: 2, 16384 bytes)
Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 131072 (order: 7, 524288 bytes)
allocated 4194304 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
Memory: 2065788k/2097152k available (4505k kernel code, 31364k reserved, 1964k data, 328k init)
virtual kernel memory layout:
    vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
    memory  : 0x10000000 - 0x90000000   (2048 MB)
      .init : 0x107a0000 - 0x107f2000   ( 328 kB)
      .data : 0x10566690 - 0x107517b0   (1964 kB)
      .text : 0x10100000 - 0x10566690   (4505 kB)
NR_IRQS:96
Console: colour dummy device 128x48
Calibrating delay loop... 1495.85 BogoMIPS (lpj=7479296)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys blkio
xor: measuring software checksum speed
   8regs     :  1808.800 MB/sec
   8regs_prefetch:  1727.600 MB/sec
   32regs    :  1444.800 MB/sec
   32regs_prefetch:  1431.200 MB/sec
xor: using function: 8regs (1808.800 MB/sec)
atomic64 test passed
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. Allegro W2 at 0xfffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
7. Memory at 0xfed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
Setting cache flush threshold to a20 (1 CPUs online)
SBA found Astro 2.1 at 0xfed00000
Elroy version TR4.0 (0x5) found at 0xfed30000
LBA 10:0: PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
pci_bus 0000:00: root bus resource [mem 0xf2000000-0xf23fffff]
PCI: Enabled native mode for NS87415 (pif=0x8f)
Elroy version TR4.0 (0x5) found at 0xfed32000
LBA 10:1: PCI host bridge to bus 0000:01
pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
pci_bus 0000:01: root bus resource [mem 0xf6000000-0xf6ffffff]
pci_bus 0000:01: root bus resource [mem 0xf2400000-0xf27fffff]
pci 0000:01:04.0: no compatible bridge window for [mem 0xf6000000-0xf7ffffff]
iosapic: no IRTE for 0000:01:04.0 (IRQ not connected?)
pci 0000:01:05.0: no compatible bridge window for [mem 0xf8000000-0xf8ffffff pref]
iosapic: no IRTE for 0000:01:05.0 (IRQ not connected?)
pci 0000:01:06.0: PCI bridge to [bus 02-ff]
pci 0000:01:06.0: can't handle 64-bit address space for bridge
pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]
pci 0000:01:06.0: no compatible bridge window for [mem 0xf9000000-0xfbffffff]
pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]
pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]
pci 0000:01:06.0: device not available (can't reserve [mem 0xf9000000-0xfbffffff])
pci 0000:01:06.0: Error enabling bridge (-22), continuing
Elroy version TR4.0 (0x5) found at 0xfed38000
LBA 10:4: PCI host bridge to bus 0000:03
pci_bus 0000:03: root bus resource [io  0x28000-0x29fff] (bus address [0x8000-0x9fff])
pci_bus 0000:03: root bus resource [mem 0xf3000000-0xf33fffff]
Elroy version TR4.0 (0x5) found at 0xfed3c000
LBA 10:6: PCI host bridge to bus 0000:04
pci_bus 0000:04: root bus resource [io  0x3c000-0x3dfff] (bus address [0xc000-0xdfff])
pci_bus 0000:04: root bus resource [mem 0xf4000000-0xf5ffffff]
pci_bus 0000:04: root bus resource [mem 0xf3800000-0xf3bfffff]
iosapic: hpa not registered for 0000:04:02.0
powersw: Soft power switch at 0xf0400804 enabled.
bio: create slab <bio-0> at 0
raid6: int32x1    434 MB/s
raid6: int32x2    499 MB/s
raid6: int32x4    530 MB/s
raid6: int32x8    404 MB/s
raid6: using algorithm int32x4 (530 MB/s)
vgaarb: device added: PCI:0000:02:00.0,decodes=io+mem,owns=none,locks=none
vgaarb: loaded
vgaarb: bridge control possible 0000:02:00.0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Switching to clocksource cr16
NET: Registered protocol family 2
IP route cache hash table entries: 65536 (order: 6, 262144 bytes)
TCP established hash table entries: 262144 (order: 9, 2097152 bytes)
TCP bind hash table entries: 65536 (order: 8, 1310720 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP: reno registered
UDP hash table entries: 1024 (order: 3, 49152 bytes)
UDP-Lite hash table entries: 1024 (order: 3, 49152 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 67)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
Enabling PDC chassis warnings support v0.05
Initializing RT-Tester: OK
====[ backtrace testing ]===========
Testing a backtrace from process context.
The following trace is a kernel self test and not a bug!
Backtrace:
 [<1011b070>] show_stack+0x18/0x28
 [<101148f8>] dump_stack+0x1c/0x2c
 [<10181098>] backtrace_regression_test+0x50/0x130
 [<10118eac>] do_one_initcall+0x54/0x284
 [<107a1abc>] kernel_init+0x1a8/0x270
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a backtrace from irq context.
The following trace is a kernel self test and not a bug!
Backtrace:
 [<1011b070>] show_stack+0x18/0x28
 [<101148f8>] dump_stack+0x1c/0x2c
 [<10181028>] backtrace_test_irq_callback+0x18/0x38
 [<1013b96c>] tasklet_action+0x80/0xe4
 [<1018ffc0>] rcu_process_callbacks+0x30/0x40
 [<1013c2e0>] __do_softirq+0x148/0x198
 [<1013c39c>] run_ksoftirqd+0x6c/0x120
 [<101174bc>] schedule+0x30/0x74
 [<101546f4>] kthread+0xac/0xb4
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a saved backtrace.
The following trace is a kernel self test and not a bug!
 [<10124bd4>] save_stack_trace+0x28/0x60
 [<10181140>] backtrace_regression_test+0xf8/0x130
 [<10118eac>] do_one_initcall+0x54/0x284
 [<107a1abc>] kernel_init+0x1a8/0x270
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24
 [<ffffffff>] 0xffffffff
====[ end of backtrace testing ]====
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
msgmni has been set to 4034
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
start plist test
end plist test
PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9a
sti 0000:01:04.0: device not available (can't reserve [mem 0xf6000000-0xf7ffffff])
sti 0000:01:04.0: Cannot enable PCI device
sti: probe of 0000:01:04.0 failed with error -22
STI PCI graphic ROM found at f3800000 (2048 kB), fb at f4000000 (32 MB)
    id 35acda30-9a02587, conforms to spec rev. 8.0d
    graphics card name: A1262A
sticon: Initializing STI text console.
Console: switching to colour STI console 128x48
matroxfb 0000:02:00.0: enabling SERR and PARITY (0007 -> 0147)
matroxfb: Matrox G450 detected
PInS memtype = 4
matroxfb: cannot determine memory size
matroxfb: probe of 0000:02:00.0 failed with error -1
stifb: 'A1262A' (id: 0x35acda30) not supported.
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 3) is a 16550A
console [ttyS0] enabled, bootconsole disabled
console [ttyS0] enabled, bootconsole disabled
serial8250: ttyS1 at I/O 0x2f8 (irq = 4) is a 16550A
Linux agpgart interface v0.103
brd: module loaded
loop: module loaded
Uniform Multi-Platform E-IDE driver
ns87415 0000:00:0e.0: IDE controller (0x100b:0x0002 rev 0x03)
ns87415 0000:00:0e.0: 100% native mode on irq 7
    ide0: BM-DMA at 0x0a00-0x0a07
    ide1: BM-DMA at 0x0a08-0x0a0f
hda: CD-532E-B, ATAPI CD/DVD-ROM drive
ide0 at 0xf00-0xf07,0xe02 on irq 7
ide1 at 0xd00-0xd07,0xb02 on irq 7
ide-gd driver 1.18
ide-cd driver 5.00
ide-cd: hda: ATAPI 32X CD-ROM drive, 128kB Cache
cdrom: Uniform CD-ROM driver Revision: 3.20
sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 68
sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
sym0: SCSI BUS mode change from SE to SE.
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
sym1: <896> rev 0x7 at pci 0000:00:0f.1 irq 68
sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.2.3
scsi 1:0:5:0: Direct-Access     SEAGATE  ST39102LC        HP01 PQ: 0 ANSI: 2
scsi target1:0:5: tagged command queuing enabled, command queue depth 16.
scsi target1:0:5: Beginning Domain Validation
scsi target1:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 15)
scsi target1:0:5: Domain Validation skipping write tests
scsi target1:0:5: Ending Domain Validation
scsi 1:0:6:0: Direct-Access     HP 36.4G ST336607LC       HPC3 PQ: 0 ANSI: 3
scsi target1:0:6: tagged command queuing enabled, command queue depth 16.
scsi target1:0:6: Beginning Domain Validation
scsi target1:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
scsi target1:0:6: Domain Validation skipping write tests
scsi target1:0:6: Ending Domain Validation
st: Version 20101219, fixed bufsize 32768, s/g segs 256
sd 1:0:5:0: Attached scsi generic sg0 type 0
sd 1:0:6:0: Attached scsi generic sg1 type 0
Linux Tulip driver version 1.1.15 (Feb 27, 2007)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1
net eth0: Digital DS21142/43 Tulip rev 65 at Port 0x1000, 00:30:6e:48:aa:64, IRQ 65
tulip1: EEPROM default media type Autosense
tulip1: Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block
tulip1: Index #1 - Media 10base2 (#1) described by a 21142 Serial PHY (2) block
tulip1: Index #2 - Media AUI (#2) described by a 21142 Serial PHY (2) block
tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101
sd 1:0:5:0: [sda] 17773524 512-byte logical blocks: (9.10 GB/8.47 GiB)
sd 1:0:6:0: [sdb] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
net eth1: Digital DS21142/43 Tulip rev 33 at Port 0x28000, 00:60:b0:7a:12:89, IRQ 71
sd 1:0:6:0: [sdb] Write Protect is off
LASI 82596 driver - Revision: 1.30
sd 1:0:6:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci_hcd 0000:00:0e.2: OHCI Host Controller
ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:0e.2: irq 1, io mem 0xf2007000
sd 1:0:5:0: [sda] Write Protect is off
sd 1:0:5:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: OHCI Host Controller
usb usb1: Manufacturer: Linux 3.4.0-rc6-32bit+ ohci_hcd
usb usb1: SerialNumber: 0000:00:0e.2
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
uhci_hcd: USB Universal Host Controller Interface driver
mousedev: PS/2 mouse device common for all mice
 sdb: sdb1 sdb2 sdb3 sdb4
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
 sda: sda1 sda2 sda3 sda4
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: raid10 personality registered for level 10
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
device-mapper: uevent: version 1.0.3
device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: dm-devel@redhat.com
sd 1:0:6:0: [sdb] Attached SCSI disk
sd 1:0:5:0: [sda] Attached SCSI disk
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
oprofile: using timer interrupt.
TCP: cubic registered
NET: Registered protocol family 17
rtc-generic rtc-generic: setting system clock to 2012-05-12 20:57:11 UTC (1336856231)
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 192.168.178.50, my address is 192.168.178.66
IP-Config: Complete:
     device=eth0, addr=192.168.178.66, mask=255.255.255.0, gw=192.168.178.1
     host=c3000, domain=box, nis-domain=(none)
     bootserver=192.168.178.50, rootserver=192.168.178.50, rootpath=
md: Waiting for all devices to be available before autodetect
md: If you don't use raid, use raid=noautodetect
md: Autodetecting RAID arrays.
md: Scanned 0 and added 0 devices.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda3): mounted filesystem with writeback data mode
VFS: Mounted root (ext3 filesystem) readonly on device 8:3.
Freeing unused kernel memory: 328k freed
Backtrace:
 [<1021dc3c>] mpage_readpages+0xf0/0x16c
 [<10257e88>] ext3_readpages+0x28/0x38
 [<101acb90>] __do_page_cache_readahead+0x1e0/0x27c
 [<101acc5c>] ra_submit+0x30/0x40
 [<101acee0>] ondemand_readahead+0xd0/0x26c
ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1                                                                                                                                                                         
ohci_hcd 0000:00:0e.2: irq 1, io mem 0xf2007000                                                                                                                                                                                              
sd 1:0:5:0: [sda] Write Protect is off                                                                                                                                                                                                       
sd 1:0:5:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA                                                                                                                                                           
usb usb1: New USB device found, idVendor=1d6b, idProduct=0001                                                                                                                                                                                
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1                                                                                                                                                                           
usb usb1: Product: OHCI Host Controller                                                                                                                                                                                                      
usb usb1: Manufacturer: Linux 3.4.0-rc6-32bit+ ohci_hcd                                                                                                                                                                                      
usb usb1: SerialNumber: 0000:00:0e.2                                                                                                                                                                                                         
hub 1-0:1.0: USB hub found                                                                                                                                                                                                                   
hub 1-0:1.0: 3 ports detected                                                                                                                                                                                                                
uhci_hcd: USB Universal Host Controller Interface driver                                                                                                                                                                                     
mousedev: PS/2 mouse device common for all mice                                                                                                                                                                                              
 sdb: sdb1 sdb2 sdb3 sdb4                                                                                                                                                                                                                    
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0                                                                                                                                                                            
 sda: sda1 sda2 sda3 sda4                                                                                                                                                                                                                    
 [<101acee0>] ondemand_readahead+0xd0/0x26c                                                                                                                                                                                                  
 [<101acee0>] ondemand_readahead+0xd0/0x26c                                                                                                                                                                                                  
 [<101acee0>] ondemand_readahead+0xd0/0x26c                                                                                                                                                                                                  
 [<101ad1a8>] page_cache_sync_readahead+0x44/0x74                                                                                                                                                                                            
 [<101a38e4>] generic_file_aio_read+0x400/0x764                                                                                                                                                                                              
 [<101e243c>] do_sync_read+0xd4/0x130                                                                                                                                                                                                        
 [<101e32f4>] vfs_read+0xac/0x158                                                                                                                                                                                                            
 [<101ea47c>] kernel_read+0x40/0x5c                                                                                                                                                                                                          
 [<101ea58c>] prepare_binprm+0xf4/0x130                                                                                                                                                                                                      
 [<101eae3c>] do_execve+0x2b8/0x3a4                                                                                                                                                                                                          
 [<1012199c>] sys_execve+0x64/0x94                                                                                                                                                                                                           
 [<10104084>] __execve+0x20/0x34                                                                                                                                                                                                             
 [<1019faf8>] perf_output_begin+0x150/0x240                                                                                                                                                                                                  
 [<101a83e8>] __free_pages+0x54/0x64                                                                                                                                                                                                         
                                                                                                                                                                                                                                             
                                                                                                                                                                                                                                             
Kernel Fault: Code=26 regs=8fc30bc0 (Addr=00000034)                                                                                                                                                                                          
                                                                                                                                                                                                                                             
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                                                                                                                                                                                        
PSW: 00000000000001101111111100001111 Not tainted                                                                                                                                                                                            
r00-03  0006ff0f 8fc30c40 1021d928 8fc30b00                                                                                                                                                                                                  
r04-07  00000001 00000001 00000001 8fc30a50                                                                                                                                                                                                  
r08-11  00000001 00000000 00000004 00000001                                                                                                                                                                                                  
r12-15  8f8024c0 0000000c 10925fa0 8f812598                                                                                                                                                                                                  
r16-19  00000013 8fc30b08 00000004 1021d324                                                                                                                                                                                                  
r20-23  8fc30a48 00060370 00000002 8f8124d8                                                                                                                                                                                                  
r24-27  70030600 00000000 00000000 106fa020                                                                                                                                                                                                  
r28-31  10645000 00000000 8fc30bc0 00000002                                                                                                                                                                                                  
sr00-03  00000000 00000000 00000000 00000000                                                                                                                                                                                                 
sr04-07  00000000 00000000 00000000 00000000                                                                                                                                                                                                 
                                                                                                                                                                                                                                             
IASQ: 00000000 00000000 IAOQ: 1021d784 1021d788                                                                                                                                                                                              
 IIR: 69330068    ISR: 00000000  IOR: 00000034                                                                                                                                                                                               
 CPU:        0   CR30: 8fc30000 CR31: d23345e2                                                                                                                                                                                               
 ORIG_R28: 8fdf2000                                                                                                                                                                                                                          
 IAOQ[0]: do_mpage_readpage+0x284/0x5d4                                                                                                                                                                                                      
 IAOQ[1]: do_mpage_readpage+0x288/0x5d4                                                                                                                                                                                                      
 RP(r2): do_mpage_readpage+0x428/0x5d4                                                                                                                                                                                                       
Backtrace:                                                                                                                                                                                                                                   
 [<1021dc3c>] mpage_readpages+0xf0/0x16c                                                                                                                                                                                                     
 [<10257e88>] ext3_readpages+0x28/0x38                                                                                                                                                                                                       
 [<101acb90>] __do_page_cache_readahead+0x1e0/0x27c                                                                                                                                                                                          
 [<101acc5c>] ra_submit+0x30/0x40                                                                                                                                                                                                            
 [<101acee0>] ondemand_readahead+0xd0/0x26c                                                                                                                                                                                                  
 [<101ad1a8>] page_cache_sync_readahead+0x44/0x74                                                                                                                                                                                            
 [<101a38e4>] generic_file_aio_read+0x400/0x764                                                                                                                                                                                              
 [<101e243c>] do_sync_read+0xd4/0x130                                                                                                                                                                                                        
 [<101e32f4>] vfs_read+0xac/0x158                                                                                                                                                                                                            
 [<101ea47c>] kernel_read+0x40/0x5c                                                                                                                                                                                                          
 [<101ea58c>] prepare_binprm+0xf4/0x130                                                                                                                                                                                                      
 [<101eae3c>] do_execve+0x2b8/0x3a4                                                                                                                                                                                                          
 [<1012199c>] sys_execve+0x64/0x94                                                                                                                                                                                                           
 [<10104084>] __execve+0x20/0x34                                                                                                                                                                                                             
 [<1019faf8>] perf_output_begin+0x150/0x240                                                                                                                                                                                                  
 [<101a83e8>] __free_pages+0x54/0x64                                                                                                                                                                                                         
                                                                                                                                                                                                                                             
Kernel panic - not syncing: Kernel Fault   

--------------000702020506000603020803
Content-Type: text/plain;
 name="pa64.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="pa64.log"

Command line for kernel: 'HOME=/ root=/dev/sda5 pa64root=sda5 ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 32-bit kernelELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 6647808 mediaptr 0x1000
Segment 1 load 007a0000 size 185472 mediaptr 0x658000
Segment 2 load 007ce000 size 145080 mediaptr 0x686000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 3.4.0-rc6-32bit+ (deller@p100) (gcc version 4.3.3 (GCC) ) #7 Sat May 12 22:55:41 CEST 2012
unwind_init: start = 0x106a8000, end = 0x106ebdc0, entries = 17372
WARNING: Out of order unwind entry! 106a95c0 and 106a95d0
WARNING: Out of order unwind entry! 106a95d0 and 106a95e0
WARNING: Out of order unwind entry! 106aa090 and 106aa0a0
WARNING: Out of order unwind entry! 106aa0a0 and 106aa0b0
WARNING: Out of order unwind entry! 106aa110 and 106aa120
WARNING: Out of order unwind entry! 106aa120 and 106aa130
WARNING: Out of order unwind entry! 106aa140 and 106aa150
WARNING: Out of order unwind entry! 106aa150 and 106aa160
WARNING: Out of order unwind entry! 106aa160 and 106aa170
WARNING: Out of order unwind entry! 106aa170 and 106aa180
WARNING: Out of order unwind entry! 106aa180 and 106aa190
WARNING: Out of order unwind entry! 106aa190 and 106aa1a0
WARNING: Out of order unwind entry! 106aa1a0 and 106aa1b0
WARNING: Out of order unwind entry! 106aa1b0 and 106aa1c0
WARNING: Out of order unwind entry! 106aa1c0 and 106aa1d0
WARNING: Out of order unwind entry! 106aa1d0 and 106aa1e0
WARNING: Out of order unwind entry! 106aa1e0 and 106aa1f0
WARNING: Out of order unwind entry! 106aa1f0 and 106aa200
WARNING: Out of order unwind entry! 106aa210 and 106aa220
WARNING: Out of order unwind entry! 106aa220 and 106aa230
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: Snake.
model 000060a0 00000481 00000000 00000000 773c7d2c 00000000 00000004 00000072 00000072
vers  0000000c
model 9000/715
Total Memory: 160 MB
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 40640
Kernel command line: HOME=/ root=/dev/sda5 pa64root=sda5 ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 1024 (order: 0, 4096 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
allocated 327680 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
Memory: 154668k/163840k available (4505k kernel code, 9172k reserved, 1964k data, 328k init)
virtual kernel memory layout:
    vmalloc : 0x00810000 - 0x0f000000   ( 231 MB)
    memory  : 0x10000000 - 0x1a000000   ( 160 MB)
      .init : 0x107a0000 - 0x107f2000   ( 328 kB)
      .data : 0x10566690 - 0x107517b0   (1964 kB)
      .text : 0x10100000 - 0x10566690   (4505 kB)
NR_IRQS:96
Console: colour dummy device 128x48
Calibrating delay loop... 63.07 BogoMIPS (lpj=315392)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys blkio
xor: measuring software checksum speed
   8regs     :    44.800 MB/sec
   8regs_prefetch:    44.400 MB/sec
   32regs    :    72.000 MB/sec
   32regs_prefetch:    71.600 MB/sec
xor: using function: 32regs (72.000 MB/sec)
atomic64 test passed
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Mirage Jr GSC Builtin Graphics at 0xf8000000 [1] { 10, 0x0, 0x012, 0x00085 }
2. Mirage Jr Core BA at 0xf0100000 [2] { 11, 0x0, 0x028, 0x00081 }
3. Mirage Jr Core SCSI at 0xf0106000 [2/0/1] { 10, 0x0, 0x028, 0x00082 }
4. Mirage Jr Core LAN (802.3) at 0xf0107000 [2/0/2] { 10, 0x0, 0x028, 0x0008a }
5. Mirage Jr Core RS-232 at 0xf0105000 [2/0/4] { 10, 0x0, 0x028, 0x0008c }
6. Mirage Jr Core Centronics at 0xf0102000 [2/0/6] { 10, 0x0, 0x028, 0x00074 }
7. Mirage Jr Audio at 0xf0104000 [2/0/8] { 10, 0x0, 0x028, 0x0007b }
8. Mirage Jr Core PC Floppy at 0xf010a000 [2/0/10] { 10, 0x0, 0x028, 0x00083 }
9. Mirage Jr Core PS/2 Port at 0xf0108000 [2/0/11] { 10, 0x0, 0x028, 0x00084 }
10. Mirage Jr Core PS/2 Port at 0xf0108100 [2/0/12] { 10, 0x0, 0x028, 0x00084 }
11. Mirage Jr Wax EISA BA at 0xfc000000 [4] { 11, 0x0, 0x028, 0x00090 }
12. Mirage Jr Wax BA at 0xf0200000 [5] { 11, 0x0, 0x012, 0x0008e }
13. Mirage Jr Wax HIL at 0xf0201000 [5/0/1] { 10, 0x0, 0x012, 0x00073 }
14. Mirage Jr Wax RS-232 at 0xf0202000 [5/0/2] { 10, 0x0, 0x012, 0x0008c }
15. Mirage Jr (715/64) at 0xfffbe000 [8] { 0, 0x0, 0x60a, 0x00004 }
16. Memory at 0xfffbf000 [9] { 1, 0x0, 0x04a, 0x00009 }
CPU(s): 1 x PA7100LC (PCX-L) at 64.000000 MHz
Setting cache flush threshold to 3e0 (1 CPUs online)
Lasi version 0 at 0xf0100000 found.
LED display at f00e0000 registered
wax at 0xf0200000 found.
Wax EISA Adapter found at 0xfc000000
Enumerating EISA bus
EISA: Probing bus 0 at 4
EISA: Mainboard HWPC000 detected.
EISA: Detected 0 cards.
powersw: Gecko-style soft power switch enabled.
bio: create slab <bio-0> at 0
raid6: int32x1     28 MB/s
raid6: int32x2     31 MB/s
raid6: int32x4     37 MB/s
raid6: int32x8     17 MB/s
raid6: using algorithm int32x4 (37 MB/s)
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Switching to clocksource cr16
NET: Registered protocol family 2
IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
TCP established hash table entries: 8192 (order: 4, 65536 bytes)
TCP bind hash table entries: 8192 (order: 5, 163840 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
TCP: reno registered
UDP hash table entries: 128 (order: 0, 6144 bytes)
UDP-Lite hash table entries: 128 (order: 0, 6144 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Chassis warnings not supported.
Initializing RT-Tester: OK
====[ backtrace testing ]===========
Testing a backtrace from process context.
The following trace is a kernel self test and not a bug!
Backtrace:
 [<1011b070>] show_stack+0x18/0x28
 [<101148f8>] dump_stack+0x1c/0x2c
 [<10181098>] backtrace_regression_test+0x50/0x130
 [<10118eac>] do_one_initcall+0x54/0x284
 [<107a1abc>] kernel_init+0x1a8/0x270
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a backtrace from irq context.
The following trace is a kernel self test and not a bug!
Backtrace:
 [<1011b070>] show_stack+0x18/0x28
 [<101148f8>] dump_stack+0x1c/0x2c
 [<10181028>] backtrace_test_irq_callback+0x18/0x38
 [<1013b96c>] tasklet_action+0x80/0xe4
 [<1018ffc0>] rcu_process_callbacks+0x30/0x40
 [<1013c2e0>] __do_softirq+0x148/0x198
 [<1013c39c>] run_ksoftirqd+0x6c/0x120
 [<101174bc>] schedule+0x30/0x74
 [<101546f4>] kthread+0xac/0xb4
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a saved backtrace.
The following trace is a kernel self test and not a bug!
 [<ffffffff>] 0xffffffff
====[ end of backtrace testing ]====
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
msgmni has been set to 302
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
start plist test
end plist test
EISA EEPROM at 0x00810400
PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9a
    id 2b4ded6d-40a00499, conforms to spec rev. 8.04
    graphics card name: HPA208LC1024
sticon: Initializing STI text console.
Console: switching to colour STI console 128x48
Console: switching to colour frame buffer device 128x48
fb0: stifb 1024x768-8 frame buffer device, HPA208LC1024, id: 2b4ded6d, mmio: 0xf8100000
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
2:0:4: ttyS0 at MMIO 0xf0105800 (irq = 18) is a 16550A
console [ttyS0] enabled, bootconsole disabled
console [ttyS0] enabled, bootconsole disabled
5:0:2: ttyS1 at MMIO 0xf0202800 (irq = 25) is a 16550A
Linux agpgart interface v0.103
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 19 [PCSPP,TRISTATE]
parport0: fix this legacy no-device port driver!
brd: module loaded
loop: module loaded
Uniform Multi-Platform E-IDE driver
ide-gd driver 1.18
ide-cd driver 5.00
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2 
scsi0 : LASI SCSI 53c700
scsi 0:0:6:0: Direct-Access     QUANTUM  FIREBALL_TM3200S 300X PQ: 0 ANSI: 2
scsi target0:0:6: Beginning Domain Validation
scsi 0:0:6:0: Enabling Tag Command Queuing
scsi target0:0:6: asynchronous
scsi target0:0:6: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 8)
scsi target0:0:6: Domain Validation skipping write tests
scsi target0:0:6: Ending Domain Validation
st: Version 20101219, fixed bufsize 32768, s/g segs 256
sd 0:0:6:0: Attached scsi generic sg0 type 0
sd 0:0:6:0: [sda] 6281856 512-byte logical blocks: (3.21 GB/2.99 GiB)
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xf0107000, IRQ 17
eth0: 82596 at 0xf0107000, 08:00:09:c2:9e:60 IRQ 17.
sd 0:0:6:0: [sda] Write Protect is off
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
uhci_hcd: USB Universal Host Controller Interface driver
sd 0:0:6:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
serio: gsc-ps2-keyboard port at 0x0081a000 irq 22 @ 2:0:11
serio: gsc-ps2-mouse port at 0x0081c100 irq 22 @ 2:0:12
mousedev: PS/2 mouse device common for all mice
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: raid10 personality registered for level 10
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
device-mapper: uevent: version 1.0.3
device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: dm-devel@redhat.com
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
oprofile: using timer interrupt.
TCP: cubic registered
NET: Registered protocol family 17
rtc-generic rtc-generic: setting system clock to 1970-01-04 11:04:35 UTC (299075)
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 192.168.178.50, my address is 192.168.178.64
IP-Config: Complete:
     device=eth0, addr=192.168.178.64, mask=255.255.255.0, gw=192.168.178.1
     host=pa64, domain=box, nis-domain=(none)
     bootserver=192.168.178.50, rootserver=192.168.178.50, rootpath=
 sda: sda1 sda2 sda3 < sda5 sda6 >
sd 0:0:6:0: [sda] Attached SCSI disk
md: Waiting for all devices to be available before autodetect
md: If you don't use raid, use raid=noautodetect
md: Autodetecting RAID arrays.
md: Scanned 0 and added 0 devices.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda5): mounted filesystem with writeback data mode
VFS: Mounted root (ext3 filesystem) readonly on device 8:5.
Freeing unused kernel memory: 328k freed
Backtrace:
 [<1021dc3c>] mpage_readpages+0xf0/0x16c
 [<10257e88>] ext3_readpages+0x28/0x38
 [<101acb90>] __do_page_cache_readahead+0x1e0/0x27c
 [<101acc5c>] ra_submit+0x30/0x40
 [<101acee0>] ondemand_readahead+0xd0/0x26c
 [<101ad1a8>] page_cache_sync_readahead+0x44/0x74
 [<101a38e4>] generic_file_aio_read+0x400/0x764
 [<101e243c>] do_sync_read+0xd4/0x130
 [<101e32f4>] vfs_read+0xac/0x158
 [<101ea47c>] kernel_read+0x40/0x5c
 [<101ea58c>] prepare_binprm+0xf4/0x130
 [<101eae3c>] do_execve+0x2b8/0x3a4
 [<1012199c>] sys_execve+0x64/0x94
 [<10104084>] __execve+0x20/0x34
 [<10136374>] vprintk+0x1e8/0x488
 [<101a83e8>] __free_pages+0x54/0x64


Kernel Fault: Code=26 regs=19c24bc0 (Addr=00000034)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  0006ff0f 19c24c40 1021d928 19c24b00
r04-07  00000001 00000001 00000001 19c24a50
r08-11  00000001 00000000 00000004 00000001
r12-15  19802280 0000000c 10803980 19811598
r16-19  00000013 19c24b08 00000004 1021d324
r20-23  19c24a48 00068345 00000004 198114d8
r24-27  45830600 00000000 00000000 106fa020
r28-31  10645000 00000000 19c24bc0 00000004
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1021d784 1021d788
 IIR: 69330068    ISR: 00000000  IOR: 00000034
 CPU:        0   CR30: 19c24000 CR31: f00effff
 ORIG_R28: 19e71c00
 IAOQ[0]: do_mpage_readpage+0x284/0x5d4
 IAOQ[1]: do_mpage_readpage+0x288/0x5d4
 RP(r2): do_mpage_readpage+0x428/0x5d4
Backtrace:
 [<1021dc3c>] mpage_readpages+0xf0/0x16c
 [<10257e88>] ext3_readpages+0x28/0x38
 [<101acb90>] __do_page_cache_readahead+0x1e0/0x27c
 [<101acc5c>] ra_submit+0x30/0x40
 [<101acee0>] ondemand_readahead+0xd0/0x26c
 [<101ad1a8>] page_cache_sync_readahead+0x44/0x74
 [<101a38e4>] generic_file_aio_read+0x400/0x764
 [<101e243c>] do_sync_read+0xd4/0x130
 [<101e32f4>] vfs_read+0xac/0x158
 [<101ea47c>] kernel_read+0x40/0x5c
 [<101ea58c>] prepare_binprm+0xf4/0x130
 [<101eae3c>] do_execve+0x2b8/0x3a4
 [<1012199c>] sys_execve+0x64/0x94
 [<10104084>] __execve+0x20/0x34
 [<10136374>] vprintk+0x1e8/0x488
 [<101a83e8>] __free_pages+0x54/0x64

Kernel panic - not syncing: Kernel Fault


--------------000702020506000603020803--
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From - Thu Nov 08 21:08:14 2018
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X-Mozilla-Keys:                                                                                 

From - Thu Nov 08 21:08:14 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
Date: Sun, 13 May 2012 10:11:19 -0400
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Cc: Vincent <vincent.stehle@laposte.net>,
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To: Helge Deller <deller@gmx.de>
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On 12-May-12, at 6:50 PM, Helge Deller wrote:

> I have my machines now up and running again.

Good.

>
> I tested upstream version (bcc62fb) and got on all my machines the  
> same bug (same Kernel binary started on all):
>
> Backtrace:
> [<1021dc3c>] mpage_readpages+0xf0/0x16c
> [<10257e88>] ext3_readpages+0x28/0x38
> [<101acb90>] __do_page_cache_readahead+0x1e0/0x27c
> [<101acc5c>] ra_submit+0x30/0x40
> [<101acee0>] ondemand_readahead+0xd0/0x26c
>
> or
>
> Backtrace:
> [<1021dc3c>] mpage_readpages+0xf0/0x16c
> [<10257e88>] ext3_readpages+0x28/0x38
> [<101acb90>] __do_page_cache_readahead+0x1e0/0x27c
> [<101acc5c>] ra_submit+0x30/0x40
> [<101acee0>] ondemand_readahead+0xd0/0x26c
> [<101ad1a8>] page_cache_sync_readahead+0x44/0x74
> [<101a38e4>] generic_file_aio_read+0x400/0x764
> [<101e243c>] do_sync_read+0xd4/0x130
> [<101e32f4>] vfs_read+0xac/0x158
> [<101ea47c>] kernel_read+0x40/0x5c
> [<101ea58c>] prepare_binprm+0xf4/0x130
> [<101eae3c>] do_execve+0x2b8/0x3a4
> [<1012199c>] sys_execve+0x64/0x94
> [<10104084>] __execve+0x20/0x34
> [<10136374>] vprintk+0x1e8/0x488
> [<101a83e8>] __free_pages+0x54/0x64

I haven't tried 3.4.  These seem to be new issues.  I will try 3.4  
soon, but
could you try stable 3.3.6?  Stable 3.3 up to 3.3.4 is known to work on
various machines.

>
>
> all logs attached for the 715/64, B160L and C3000 machines.
>
> I'll test tomorrow your patch (but will try to update my binutils/ 
> gcc prior to that).


There are known issues with GCC 4.3 branch.  In particular, the  
delayed branch support
is broken (at least three different bugs).  I would suggest you  
install 4.6.3 from shirka
or magnum.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:08:14 2018
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From: Jeroen Roovers <jer@gentoo.org>
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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Cc: Rolf Eike Beer <eike-kernel@sf-tec.de>,
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On Thu, 10 May 2012 08:41:50 +0200
Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:

> I think Guy Martin has the cache patch running on at least one of his 
> machines.

I have the patched code running on a C3650 (kernel 3.2.12) and a C8000
(kernel 3.3.5). Looks stable so far, after a few days of heavy use. I
can't say it's actually running faster on either system because I
simply didn't test for that change.


     jer
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From - Thu Nov 08 21:08:14 2018
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From: Tobias Ulmer <tobiasu@tmux.org>
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Subject: 3.4.0-rc7 hangs with SMP on c8000
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Kernel hangs somewhere around initializing the other CPUs. Note that the
timing information stays the same, despite the last message coming about
~2 seconds late.

SMP worked fine on 3.3.0, especially with David Angelin's cache-tlb patch.

Command line for kernel: 'root=/dev/sda4 console=ttyB0 palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 6520832 mediaptr 0x1000
Segment 1 load 007a08c0 size 577784 mediaptr 0x6398c0
Segment 2 load 00830000 size 191360 mediaptr 0x6c7000
Segment 3 load 0085f000 size 151872 mediaptr 0x6f6000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Linux version 3.4.0-rc7+ (tobiasu@cobalt) (gcc version 4.6.2 (Gentoo 4.6.2-r1 p1.4.1) ) #2 SMP Sun May 13 19:21:35 CEST 2012
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 000088b0 00000491 00000000 00000002 56f855018c5b7ed5 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000302
[    0.000000] CPUID vers 20 rev 5 (0x00000285)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/785/C8000
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000000100000000 End 0x00000001ffdfffff Size   4094 MB
[    0.000000]  2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
[    0.000000] Total Memory: 8190 MB
[    0.000000] PERCPU: Embedded 10 pages/cpu @00000000425ed000 s8512 r8192 d24256 u40960
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Kernel command line: root=/dev/sda4 console=ttyB0 palo_kernel=2/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[    0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.000000] Memory: 8234944k/8386560k available (4492k kernel code, 151616k reserved, 1827k data, 340k init)
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS:128
[    0.000000] Console: colour dummy device 160x64
[    0.060000] Calibrating delay loop... 1993.93 BogoMIPS (lpj=9969664)
[    0.190000] pid_max: default: 32768 minimum: 301
[    0.250000] Mount-cache hash table entries: 256
[    0.310000] Brought up 1 CPUs
[    0.350000] NET: Registered protocol family 16
[    0.410000] EISA bus registered
[    0.450000] Searching for devices...
[    0.620000] Found devices:
[    0.660000] 1. Unknown machine at 0xfffffffffe780000 [128] { 0, 0x0, 0x88b, 0x00004 }
[    0.760000] 2. Unknown machine at 0xfffffffffe781000 [129] { 0, 0x0, 0x88b, 0x00004 }
[    0.860000] 3. Unknown machine at 0xfffffffffe798000 [152] { 0, 0x0, 0x88b, 0x00004 }
[    0.970000] 4. Unknown machine at 0xfffffffffe799000 [153] { 0, 0x0, 0x88b, 0x00004 }
[    1.070000] 5. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0b6, 0x00009 }
[    1.160000] 6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
[    1.270000] 7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
[    1.380000] 8. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
[    1.490000] 9. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
[    1.590000] 10. Quicksilver AGP Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x784, 0x0000a }
[    1.710000] 11. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
[    1.820000] 12. unknown device at 0xfffffff0f05e0000 [17] { 10, 0x0, 0x077, 0x000ad }
[    1.920000] 13. unknown device at 0xfffffff0f05e2000 [18] { 10, 0x0, 0x077, 0x000ad }
[    2.020000] Enabling PDC_PAT chassis codes support v0.05
[    2.540000] Releasing cpu 1 now, hpa=fffffffffe781000
[    2.650000] FP[1] enabled: Rev 1 Model 20
[    2.660000] Releasing cpu 2 now, hpa=fffffffffe798000
[    2.820000] timer_interrupt(CPU 0): delayed! cycles FFFFFFFFFF7DC908 rem 890E78  next/now 18A127FC36/18A09EEDBE
[    2.820448] FP[2] enabled: Rev 1 Model 20
[    2.820448] INFO: rcu_sched detected stalls on CPUs/tasks: { 1} (detected by 2, t=1844674407392 jiffies)
[    2.820448] INFO: Stall ended before state dump start
[    2.820448] timer_interrupt(CPU 0): delayed! cycles 44D95D66B rem 812C15  next/now 1CEF3EFEB6/1CEEBDD2A1



Booting the same image with nosmp:

[    0.000000] Linux version 3.4.0-rc7+ (tobiasu@cobalt) (gcc version 4.6.2 (Gentoo 4.6.2-r1 p1.4.1) ) #2 SMP Sun May 13 19:21:35 CEST 2012
[    0.000000] unwind_init: start = 0x4063e000, end = 0x40678e40, entries = 15076
[    0.000000] WARNING: Out of order unwind entry! 000000004063f960 and 000000004063f970
[    0.000000] WARNING: Out of order unwind entry! 000000004063f970 and 000000004063f980
[    0.000000] WARNING: Out of order unwind entry! 0000000040640620 and 0000000040640630
[    0.000000] WARNING: Out of order unwind entry! 0000000040640630 and 0000000040640640
[    0.000000] WARNING: Out of order unwind entry! 0000000040640690 and 00000000406406a0
[    0.000000] WARNING: Out of order unwind entry! 00000000406406a0 and 00000000406406b0
[    0.000000] WARNING: Out of order unwind entry! 00000000406406b0 and 00000000406406c0
[    0.000000] WARNING: Out of order unwind entry! 00000000406406c0 and 00000000406406d0
[    0.000000] WARNING: Out of order unwind entry! 00000000406406d0 and 00000000406406e0
[    0.000000] WARNING: Out of order unwind entry! 00000000406406e0 and 00000000406406f0
[    0.000000] WARNING: Out of order unwind entry! 00000000406406f0 and 0000000040640700
[    0.000000] WARNING: Out of order unwind entry! 0000000040640700 and 0000000040640710
[    0.000000] WARNING: Out of order unwind entry! 0000000040640710 and 0000000040640720
[    0.000000] WARNING: Out of order unwind entry! 0000000040640720 and 0000000040640730
[    0.000000] WARNING: Out of order unwind entry! 0000000040640730 and 0000000040640740
[    0.000000] WARNING: Out of order unwind entry! 0000000040640740 and 0000000040640750
[    0.000000] WARNING: Out of order unwind entry! 0000000040640750 and 0000000040640760
[    0.000000] WARNING: Out of order unwind entry! 0000000040640760 and 0000000040640770
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 000088b0 00000491 00000000 00000002 56f855018c5b7ed5 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000302
[    0.000000] CPUID vers 20 rev 5 (0x00000285)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/785/C8000
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000000100000000 End 0x00000001ffdfffff Size   4094 MB
[    0.000000]  2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
[    0.000000] Total Memory: 8190 MB
[    0.000000] On node 0 totalpages: 262144
[    0.000000] free_area_init_node: node 0, pgdat 40696780, node_mem_map 417e4000
[    0.000000]   Normal zone: 3584 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 258560 pages, LIFO batch:31
[    0.000000] On node 1 totalpages: 1048064
[    0.000000] free_area_init_node: node 1, pgdat 40697500, node_mem_map 140000000
[    0.000000]   Normal zone: 14329 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 1033735 pages, LIFO batch:31
[    0.000000] On node 2 totalpages: 786432
[    0.000000] free_area_init_node: node 2, pgdat 40698280, node_mem_map 4080000000
[    0.000000]   Normal zone: 10752 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 775680 pages, LIFO batch:31
[    0.000000] PERCPU: Embedded 10 pages/cpu @00000000425ed000 s8512 r8192 d24256 u40960
[    0.000000] pcpu-alloc: s8512 r8192 d24256 u40960 alloc=10*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 2067975
[    0.000000] Kernel command line: root=/dev/sda4 console=ttyB0 nosmp palo_kernel=2/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[    0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.000000] Memory: 8234944k/8386560k available (4492k kernel code, 151616k reserved, 1827k data, 340k init)
[    0.000000] virtual kernel memory layout:
[    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
[    0.000000]     memory  : 0x0000000040000000 - 0x0000004140000000   (266240 MB)
[    0.000000]       .init : 0x0000000040830000 - 0x0000000040885000   ( 340 kB)
[    0.000000]       .data : 0x0000000040563090 - 0x000000004072bcd0   (1827 kB)
[    0.000000]       .text : 0x0000000040100000 - 0x0000000040563090   (4492 kB)
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS:128
[    0.000000] Console: colour dummy device 160x64
[    0.060000] Calibrating delay loop... 1993.93 BogoMIPS (lpj=9969664)
[    0.190000] pid_max: default: 32768 minimum: 301
[    0.250000] Mount-cache hash table entries: 256
[    0.310000] SMP mode deactivated.
[    0.360000] Brought up 1 CPUs
[    0.400000] NET: Registered protocol family 16
[    0.460000] EISA bus registered
[    0.500000] Searching for devices...
[    0.660000] Found devices:
[    0.700000] 1. Unknown machine at 0xfffffffffe780000 [128] { 0, 0x0, 0x88b, 0x00004 }
[    0.800000] 2. Unknown machine at 0xfffffffffe781000 [129] { 0, 0x0, 0x88b, 0x00004 }
[    0.900000] 3. Unknown machine at 0xfffffffffe798000 [152] { 0, 0x0, 0x88b, 0x00004 }
[    1.010000] 4. Unknown machine at 0xfffffffffe799000 [153] { 0, 0x0, 0x88b, 0x00004 }
[    1.110000] 5. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0b6, 0x00009 }
[    1.200000] 6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
[    1.310000] 7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
[    1.420000] 8. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
[    1.530000] 9. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
[    1.630000] 10. Quicksilver AGP Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x784, 0x0000a }
[    1.750000] 11. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
[    1.860000] 12. unknown device at 0xfffffff0f05e0000 [17] { 10, 0x0, 0x077, 0x000ad }
[    1.960000] 13. unknown device at 0xfffffff0f05e2000 [18] { 10, 0x0, 0x077, 0x000ad }
[    2.060000] Enabling PDC_PAT chassis codes support v0.05
[    2.590000] CPU(s): 4 x PA8800 (Mako) at 1000.000000 MHz
[    2.670000] Whole cache flush 2241342 cycles, flushing 7884800 bytes 950153 cycles
[    2.670000] Setting cache flush threshold to 11bcf00 (1 CPUs online)
[    2.880000] SBA found Pluto 2.3 at 0xfffffffffed00000
[    2.980000] Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
[    3.090000] LBA 0:0: PCI host bridge to bus 0000:00
[    3.160000] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    3.240000] pci_bus 0000:00: root bus resource [mem 0xffffffff80000000-0xffffffff8fffffff] (bus address [0x80000000-0x8fffffff])
[    3.390000] pci_bus 0000:00: root bus resource [mem 0xffffff0000000000-0xffffff0fffffffff]
[    3.510000] Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
[    3.610000] LBA 0:2: PCI host bridge to bus 0000:40
[    3.680000] pci_bus 0000:40: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
[    3.800000] pci_bus 0000:40: root bus resource [mem 0xffffffffa0000000-0xffffffffafffffff] (bus address [0xa0000000-0xafffffff])
[    3.950000] pci_bus 0000:40: root bus resource [mem 0xffffff2000000000-0xffffff2fffffffff]
[    4.060000] pci 0000:40:01.0: [1000:0030] type 00 class 0x010000
[    4.060000] pci 0000:40:01.0: reg 10: [io  0x14100-0x141ff]
[    4.060000] pci 0000:40:01.0: reg 14: [mem 0xffffffffa0260000-0xffffffffa027ffff 64bit]
[    4.060000] pci 0000:40:01.0: reg 1c: [mem 0xffffffffa0240000-0xffffffffa025ffff 64bit]
[    4.060000] pci 0000:40:01.0: reg 30: [mem 0xffffffffa0100000-0xffffffffa01fffff pref]
[    4.060000] pci 0000:40:01.0: supports D1 D2
[    4.060000] pci 0000:40:01.1: [1000:0030] type 00 class 0x010000
[    4.060000] pci 0000:40:01.1: reg 10: [io  0x14000-0x140ff]
[    4.060000] pci 0000:40:01.1: reg 14: [mem 0xffffffffa0220000-0xffffffffa023ffff 64bit]
[    4.060000] pci 0000:40:01.1: reg 1c: [mem 0xffffffffa0200000-0xffffffffa021ffff 64bit]
[    4.060000] pci 0000:40:01.1: reg 30: [mem 0xffffffffa0000000-0xffffffffa00fffff pref]
[    4.060000] pci 0000:40:01.1: supports D1 D2
[    4.070000] Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
[    4.170000] LBA 0:3: PCI host bridge to bus 0000:60
[    4.240000] pci_bus 0000:60: root bus resource [io  0x20000-0x2ffff] (bus address [0x0000-0xffff])
[    4.360000] pci_bus 0000:60: root bus resource [mem 0xffffffffb0000000-0xffffffffbfffffff] (bus address [0xb0000000-0xbfffffff])
[    4.510000] pci_bus 0000:60: root bus resource [mem 0xffffff3000000000-0xffffff3fffffffff]
[    4.620000] pci 0000:60:01.0: [1033:0035] type 00 class 0x0c0310
[    4.620000] pci 0000:60:01.0: reg 10: [mem 0xffffffffb00a3000-0xffffffffb00a3fff]
[    4.620000] pci 0000:60:01.0: supports D1 D2
[    4.620000] pci 0000:60:01.0: PME# supported from D0 D1 D2 D3hot
[    4.620000] pci 0000:60:01.1: [1033:0035] type 00 class 0x0c0310
[    4.620000] pci 0000:60:01.1: reg 10: [mem 0xffffffffb00a2000-0xffffffffb00a2fff]
[    4.620000] pci 0000:60:01.1: supports D1 D2
[    4.620000] pci 0000:60:01.1: PME# supported from D0 D1 D2 D3hot
[    4.620000] pci 0000:60:01.2: [1033:00e0] type 00 class 0x0c0320
[    4.620000] pci 0000:60:01.2: reg 10: [mem 0xffffffffb00a1000-0xffffffffb00a10ff]
[    4.620000] pci 0000:60:01.2: supports D1 D2
[    4.620000] pci 0000:60:01.2: PME# supported from D0 D1 D2 D3hot
[    4.620000] pci 0000:60:02.0: [1095:0680] type 00 class 0x010185
[    4.620000] pci 0000:60:02.0: reg 10: [io  0x26158-0x2615f]
[    4.620000] pci 0000:60:02.0: reg 14: [io  0x26164-0x26167]
[    4.620000] pci 0000:60:02.0: reg 18: [io  0x26150-0x26157]
[    4.620000] pci 0000:60:02.0: reg 1c: [io  0x26160-0x26163]
[    4.620000] pci 0000:60:02.0: reg 20: [io  0x26140-0x2614f]
[    4.620000] pci 0000:60:02.0: reg 24: [mem 0xffffffffb00a0000-0xffffffffb00a00ff]
[    4.620000] pci 0000:60:02.0: reg 30: [mem 0xffffffffb0000000-0xffffffffb007ffff pref]
[    4.620000] pci 0000:60:02.0: supports D1 D2
[    4.620000] pci 0000:60:03.0: [8086:100e] type 00 class 0x020000
[    4.620000] pci 0000:60:03.0: reg 10: [mem 0xffffffffb0080000-0xffffffffb009ffff]
[    4.620000] pci 0000:60:03.0: reg 18: [io  0x26100-0x2613f]
[    4.620000] pci 0000:60:03.0: PME# supported from D0 D3hot D3cold
[    4.620000] pci 0000:60:05.0: [13f6:0111] type 00 class 0x040100
[    4.620000] pci 0000:60:05.0: reg 10: [io  0x26000-0x260ff]
[    4.620000] pci 0000:60:05.0: supports D1 D2
[    4.630000] Quicksilver version TR1.0 (0x10) found at 0xfffffffffed28000
[    4.740000] LBA 0:4: PCI host bridge to bus 0000:80
[    4.800000] pci_bus 0000:80: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0xffff])
[    4.920000] pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffcfffffff] (bus address [0xc0000000-0xcfffffff])
[    5.070000] pci_bus 0000:80: root bus resource [mem 0xffffff4000000000-0xffffff4fffffffff]
[    5.180000] pci 0000:80:00.0: [1002:4e47] type 00 class 0x030000
[    5.180000] pci 0000:80:00.0: reg 10: [mem 0xffffffffc8000000-0xffffffffcfffffff pref]
[    5.180000] pci 0000:80:00.0: reg 14: [io  0x3c000-0x3c0ff]
[    5.180000] pci 0000:80:00.0: reg 18: [mem 0xd0030000-0xd003ffff]
[    5.180000] pci 0000:80:00.0: reg 30: [mem 0xd0000000-0xd001ffff pref]
[    5.180000] pci 0000:80:00.0: supports D1 D2
[    5.180000] pci 0000:80:00.1: [1002:4e67] type 00 class 0x038000
[    5.180000] pci 0000:80:00.1: reg 10: [mem 0xffffffffc0000000-0xffffffffc7ffffff pref]
[    5.180000] pci 0000:80:00.1: reg 14: [mem 0xd0020000-0xd002ffff]
[    5.180000] pci 0000:80:00.1: supports D1 D2
[    5.180000] pci 0000:80:00.0: no compatible bridge window for [mem 0xd0030000-0xd003ffff]
[    5.290000] pci 0000:80:00.0: no compatible bridge window for [mem 0xd0000000-0xd001ffff pref]
[    5.410000] pci 0000:80:00.1: no compatible bridge window for [mem 0xd0020000-0xd002ffff]
[    5.510000] iosapic: no IRTE for 0000:80:00.1 (IRQ not connected?)
[    5.510000] pci 0000:80:00.0: BAR 6: assigned [mem 0xffffff4000000000-0xffffff400001ffff pref]
[    5.630000] pci 0000:80:00.0: BAR 2: assigned [mem 0xffffff4000020000-0xffffff400002ffff]
[    5.730000] pci 0000:80:00.1: BAR 1: assigned [mem 0xffffff4000030000-0xffffff400003ffff]
[    5.990000] powersw: Soft power switch at 0xfffffff0f042e278 enabled.
[    6.080000] bio: create slab <bio-0> at 0
[    6.130000] vgaarb: device added: PCI:0000:80:00.0,decodes=io+mem,owns=io+mem,locks=none
[    6.240000] vgaarb: loaded
[    6.280000] vgaarb: bridge control possible 0000:80:00.0
[    6.350000] SCSI subsystem initialized
[    6.400000] usbcore: registered new interface driver usbfs
[    6.470000] usbcore: registered new interface driver hub
[    6.540000] usbcore: registered new device driver usb
[    6.610000] Switching to clocksource cr16
[    6.660000] NET: Registered protocol family 2
[    6.720000] IP route cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    6.820000] TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
[    6.930000] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    7.020000] TCP: Hash tables configured (established 262144 bind 65536)
[    7.100000] TCP: reno registered
[    7.150000] UDP hash table entries: 4096 (order: 5, 131072 bytes)
[    7.230000] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes)
[    7.310000] NET: Registered protocol family 1
[    7.370000] PCI: CLS 64 bytes
[    7.390000] The PDC console driver is still registered, removing CON_BOOT flag
[    7.490000] Chassis warnings not supported.
[    7.540000] Performance monitoring counters enabled for Unknown machine
[    7.550000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    7.630000] msgmni has been set to 16083
[    7.680000] io scheduler noop registered
[    7.730000] io scheduler cfq registered (default)
[    7.800000] PDC Stable Storage facility v0.30
[    7.900000] STI GSC/PCI core graphics driver Version 0.9a
[    8.010000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    8.100000] Linux agpgart interface v0.103
[    8.150000] loop: module loaded
[    8.190000] Uniform Multi-Platform E-IDE driver
[    8.260000] siimage 0000:60:02.0: IDE controller (0x1095:0x0680 rev 0x02)
[    8.350000] siimage 0000:60:02.0: BASE CLOCK == 133
[    8.420000] siimage 0000:60:02.0: 100% native mode on irq 71
[    8.490000]     ide0: MMIO-DMA
[    8.530000]     ide1: MMIO-DMA
[    8.570000] Probing IDE interface ide0...
[    9.180000] Probing IDE interface ide1...
[    9.780000] ide0 at 0x3e080-0x3e087,0x3e08a on irq 71
[    9.840000] ide1 at 0x3e0c0-0x3e0c7,0x3e0ca on irq 71
[    9.910000] ide-gd driver 1.18
[    9.950000] ide-cd driver 5.00
[    9.990000] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[   10.080000] e1000: Copyright (c) 1999-2006 Intel Corporation.
[   10.470000] e1000 0000:60:03.0: eth0: (PCI:33MHz:32-bit) 00:13:21:1a:34:3d
[   10.570000] e1000 0000:60:03.0: eth0: Intel(R) PRO/1000 Network Connection
[   10.660000] Fusion MPT base driver 3.04.20
[   10.710000] Copyright (c) 1999-2008 LSI Corporation
[   10.770000] Fusion MPT SPI Host driver 3.04.20
[   10.840000] mptbase: ioc0: Initiating bringup
[   12.120000] ioc0: LSI53C1030 B2: Capabilities={Initiator,Target}
[   13.390000] scsi0 : ioc0: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=66
[   14.300000] scsi 0:0:0:0: Direct-Access     FUJITSU  MAW3073NP        5803 PQ: 0 ANSI: 3
[   14.400000] scsi target0:0:0: Beginning Domain Validation
[   14.490000] scsi target0:0:0: Ending Domain Validation
[   14.560000] scsi target0:0:0: FAST-160 WIDE SCSI 320.0 MB/s DT IU RTI WRFLOW PCOMP (6.25 ns, offset 127)
[   14.690000] sd 0:0:0:0: Attached scsi generic sg0 type 0
[   14.760000] sd 0:0:0:0: [sda] 143374650 512-byte logical blocks: (73.4 GB/68.3 GiB)
[   14.860000] scsi 0:0:1:0: Direct-Access     FUJITSU  MAW3073NP        5803 PQ: 0 ANSI: 3
[   14.970000] scsi target0:0:1: Beginning Domain Validation
[   15.040000] sd 0:0:0:0: [sda] Write Protect is off
[   15.100000] sd 0:0:0:0: [sda] Mode Sense: b3 00 00 08
[   15.110000] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   15.240000]  sda: sda1 sda2 sda3 sda4
[   15.290000] scsi target0:0:1: Ending Domain Validation
[   15.360000] scsi target0:0:1: FAST-160 WIDE SCSI 320.0 MB/s DT IU RTI WRFLOW PCOMP (6.25 ns, offset 127)
[   15.490000] sd 0:0:0:0: [sda] Attached SCSI disk
[   15.550000] sd 0:0:1:0: Attached scsi generic sg1 type 0
[   15.620000] sd 0:0:1:0: [sdb] 143374650 512-byte logical blocks: (73.4 GB/68.3 GiB)
[   16.120000] sd 0:0:1:0: [sdb] Write Protect is off
[   16.180000] sd 0:0:1:0: [sdb] Mode Sense: b3 00 00 08
[   17.120000] sd 0:0:1:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   18.880000] mptbase: ioc1: Initiating bringup
[   20.130000] ioc1: LSI53C1030 B2: Capabilities={Initiator,Target}
[   21.400000]  sdb: unknown partition table
[   21.460000] scsi1 : ioc1: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=67
[   22.400000] sd 0:0:1:0: [sdb] Attached SCSI disk
[   26.120000] Fusion MPT misc device (ioctl) driver 3.04.20
[   26.190000] mptctl: Registered with Fusion MPT base driver
[   26.260000] mptctl: /dev/mptctl @ (major,minor=10,220)
[   26.330000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[   26.410000] ehci_hcd: block sizes: qh 112 qtd 96 itd 192 sitd 96
[   26.420000] ehci_hcd 0000:60:01.2: EHCI Host Controller
[   26.490000] ehci_hcd 0000:60:01.2: new USB bus registered, assigned bus number 1
[   26.590000] ehci_hcd 0000:60:01.2: reset hcs_params 0x2395 dbg=0 cc=2 pcc=3 ports=5
[   26.590000] ehci_hcd 0000:60:01.2: reset portroute 1 0 1 0 0 
[   26.590000] ehci_hcd 0000:60:01.2: reset hcc_params 0002 thresh 0 uframes 256/512/1024
[   26.590000] ehci_hcd 0000:60:01.2: reset command 0080002 (park)=0 ithresh=8 period=1024 Reset HALT
[   26.590000] ehci_hcd 0000:60:01.2: ...powerup ports...
[   26.620000] ehci_hcd 0000:60:01.2: MWI active
[   26.620000] ehci_hcd 0000:60:01.2: supports USB remote wakeup
[   26.620000] ehci_hcd 0000:60:01.2: irq 70, io mem 0xffffffffb00a1000
[   26.700000] ehci_hcd 0000:60:01.2: init command 0010005 (park)=0 ithresh=1 period=512 RUN
[   26.720000] ehci_hcd 0000:60:01.2: USB 2.0 started, EHCI 0.95
[   26.790000] usb usb1: default language 0x0409
[   26.790000] usb usb1: udev 1, busnum 1, minor = 0
[   26.790000] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[   26.880000] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   26.980000] usb usb1: Product: EHCI Host Controller
[   27.040000] usb usb1: Manufacturer: Linux 3.4.0-rc7+ ehci_hcd
[   27.120000] usb usb1: SerialNumber: 0000:60:01.2
[   27.180000] usb usb1: usb_probe_device
[   27.180000] usb usb1: configuration #1 chosen from 1 choice
[   27.180000] usb usb1: adding 1-0:1.0 (config #1, interface 0)
[   27.180000] hub 1-0:1.0: usb_probe_interface
[   27.180000] hub 1-0:1.0: usb_probe_interface - got id
[   27.180000] hub 1-0:1.0: USB hub found
[   27.230000] hub 1-0:1.0: 5 ports detected
[   27.280000] hub 1-0:1.0: standalone hub
[   27.280000] hub 1-0:1.0: individual port power switching
[   27.280000] hub 1-0:1.0: individual port over-current protection
[   27.280000] hub 1-0:1.0: power on to power good time: 20ms
[   27.280000] hub 1-0:1.0: local power source is good
[   27.280000] hub 1-0:1.0: enabling power on all ports
[   27.280000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[   27.360000] ohci_hcd: block sizes: ed 80 td 96
[   27.370000] ohci_hcd 0000:60:01.0: OHCI Host Controller
[   27.440000] ohci_hcd 0000:60:01.0: new USB bus registered, assigned bus number 2
[   27.530000] ohci_hcd 0000:60:01.0: enabled NEC chipset lost interrupt quirk
[   27.530000] ohci_hcd 0000:60:01.0: created debug files
[   27.530000] ohci_hcd 0000:60:01.0: supports USB remote wakeup
[   27.530000] ohci_hcd 0000:60:01.0: irq 68, io mem 0xffffffffb00a3000
[   27.620000] hub 1-0:1.0: state 7 ports 5 chg 0000 evt 0000
[   28.190000] ohci_hcd 0000:60:01.0: OHCI controller state
[   28.190000] ohci_hcd 0000:60:01.0: OHCI 1.0, NO legacy support registers, rh state running
[   28.190000] ohci_hcd 0000:60:01.0: control 0x083 HCFS=operational CBSR=3
[   28.190000] ohci_hcd 0000:60:01.0: cmdstatus 0x00000 SOC=0
[   28.190000] ohci_hcd 0000:60:01.0: intrstatus 0x00000004 SF
[   28.190000] ohci_hcd 0000:60:01.0: intrenable 0x8000005a MIE RHSC UE RD WDH
[   28.190000] ohci_hcd 0000:60:01.0: hcca frame #01ff
[   28.190000] ohci_hcd 0000:60:01.0: roothub.a ff000203 POTPGT=255 NPS NDP=3(3)
[   28.190000] ohci_hcd 0000:60:01.0: roothub.b 00000000 PPCM=0000 DR=0000
[   28.190000] ohci_hcd 0000:60:01.0: roothub.status 00008000 DRWE
[   28.190000] ohci_hcd 0000:60:01.0: roothub.portstatus [0] 0x00000100 PPS
[   28.190000] ohci_hcd 0000:60:01.0: roothub.portstatus [1] 0x00000100 PPS
[   28.190000] ohci_hcd 0000:60:01.0: roothub.portstatus [2] 0x00000100 PPS
[   28.190000] usb usb2: default language 0x0409
[   28.190000] usb usb2: udev 1, busnum 2, minor = 128
[   28.190000] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
[   28.270000] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   28.370000] usb usb2: Product: OHCI Host Controller
[   28.430000] usb usb2: Manufacturer: Linux 3.4.0-rc7+ ohci_hcd
[   28.510000] usb usb2: SerialNumber: 0000:60:01.0
[   28.570000] usb usb2: usb_probe_device
[   28.570000] usb usb2: configuration #1 chosen from 1 choice
[   28.570000] usb usb2: adding 2-0:1.0 (config #1, interface 0)
[   28.570000] hub 2-0:1.0: usb_probe_interface
[   28.570000] hub 2-0:1.0: usb_probe_interface - got id
[   28.570000] hub 2-0:1.0: USB hub found
[   28.620000] hub 2-0:1.0: 3 ports detected
[   28.670000] hub 2-0:1.0: standalone hub
[   28.670000] hub 2-0:1.0: no power switching (usb 1.0)
[   28.670000] hub 2-0:1.0: global over-current protection
[   28.670000] hub 2-0:1.0: power on to power good time: 510ms
[   28.670000] hub 2-0:1.0: local power source is good
[   28.670000] hub 2-0:1.0: no over-current condition exists
[   28.670000] hub 2-0:1.0: trying to enable port power on non-switchable hub
[   28.680000] ohci_hcd 0000:60:01.1: OHCI Host Controller
[   28.750000] ohci_hcd 0000:60:01.1: new USB bus registered, assigned bus number 3
[   28.850000] ohci_hcd 0000:60:01.1: enabled NEC chipset lost interrupt quirk
[   28.850000] ohci_hcd 0000:60:01.1: created debug files
[   28.850000] ohci_hcd 0000:60:01.1: supports USB remote wakeup
[   28.850000] ohci_hcd 0000:60:01.1: irq 69, io mem 0xffffffffb00a2000
[   29.500000] ohci_hcd 0000:60:01.1: OHCI controller state
[   29.500000] ohci_hcd 0000:60:01.1: OHCI 1.0, NO legacy support registers, rh state running
[   29.500000] ohci_hcd 0000:60:01.1: control 0x083 HCFS=operational CBSR=3
[   29.500000] ohci_hcd 0000:60:01.1: cmdstatus 0x00000 SOC=0
[   29.500000] ohci_hcd 0000:60:01.1: intrstatus 0x00000004 SF
[   29.500000] ohci_hcd 0000:60:01.1: intrenable 0x8000005a MIE RHSC UE RD WDH
[   29.500000] ohci_hcd 0000:60:01.1: hcca frame #01ff
[   29.500000] ohci_hcd 0000:60:01.1: roothub.a ff000202 POTPGT=255 NPS NDP=2(2)
[   29.500000] ohci_hcd 0000:60:01.1: roothub.b 00000000 PPCM=0000 DR=0000
[   29.500000] ohci_hcd 0000:60:01.1: roothub.status 00008000 DRWE
[   29.500000] ohci_hcd 0000:60:01.1: roothub.portstatus [0] 0x00000100 PPS
[   29.500000] ohci_hcd 0000:60:01.1: roothub.portstatus [1] 0x00000100 PPS
[   29.500000] usb usb3: default language 0x0409
[   29.500000] usb usb3: udev 1, busnum 3, minor = 256
[   29.500000] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
[   29.580000] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   29.680000] usb usb3: Product: OHCI Host Controller
[   29.740000] usb usb3: Manufacturer: Linux 3.4.0-rc7+ ohci_hcd
[   29.820000] usb usb3: SerialNumber: 0000:60:01.1
[   29.880000] hub 2-0:1.0: state 7 ports 3 chg 0000 evt 0000
[   29.880000] usb usb3: usb_probe_device
[   29.880000] usb usb3: configuration #1 chosen from 1 choice
[   29.880000] usb usb3: adding 3-0:1.0 (config #1, interface 0)
[   29.880000] hub 3-0:1.0: usb_probe_interface
[   29.880000] hub 3-0:1.0: usb_probe_interface - got id
[   29.880000] hub 3-0:1.0: USB hub found
[   29.930000] hub 3-0:1.0: 2 ports detected
[   29.980000] hub 3-0:1.0: standalone hub
[   29.980000] hub 3-0:1.0: no power switching (usb 1.0)
[   29.980000] hub 3-0:1.0: global over-current protection
[   29.980000] hub 3-0:1.0: power on to power good time: 510ms
[   29.980000] hub 3-0:1.0: local power source is good
[   29.980000] hub 3-0:1.0: no over-current condition exists
[   29.980000] hub 3-0:1.0: trying to enable port power on non-switchable hub
[   29.980000] mousedev: PS/2 mouse device common for all mice
[   30.070000] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[   30.160000] usbcore: registered new interface driver usbhid
[   30.240000] usbhid: USB HID core driver
[   30.290000] TCP: cubic registered
[   30.330000] NET: Registered protocol family 10
[   30.390000] NET: Registered protocol family 17
[   30.450000] Registering the dns_resolver key type
[   30.520000] rtc-generic rtc-generic: setting system clock to 2012-05-13 17:30:19 UTC (1336930219)
[   30.630000] md: Waiting for all devices to be available before autodetect
[   30.720000] md: If you don't use raid, use raid=noautodetect
[   30.800000] md: Autodetecting RAID arrays.
[   30.850000] md: Scanned 0 and added 0 devices.
[   30.910000] md: autorun ...
[   30.950000] md: ... autorun DONE.
[   30.990000] hub 3-0:1.0: state 7 ports 2 chg 0000 evt 0000
[   31.000000] EXT3-fs (sda4): error: couldn't mount because of unsupported optional features (240)
[   31.130000] EXT2-fs (sda4): error: couldn't mount because of unsupported optional features (240)
[   31.360000] EXT4-fs (sda4): mounted filesystem with ordered data mode. Opts: (null)
[   31.460000] VFS: Mounted root (ext4 filesystem) readonly on device 8:4.
[   31.640000] Freeing unused kernel memory: 340k freed
[   35.610000] udevd[1038]: starting version 171
[   41.100000] EXT4-fs (sda4): re-mounted. Opts: nobarrier
[   51.060000] Adding 8787548k swap on /dev/sda3.  Priority:-1 extents:1 across:8787548k 
[   52.990000] e1000: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
[   52.990000] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   52.990000] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   63.090000] eth0: no IPv6 routers present
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On 05/13/2012 07:34 AM, Linus Torvalds wrote:

> This is almost certainly the last -rc in this series - things really
> have calmed down, and I even considered just cutting 3.4 this weekend,
> but felt that another week wouldn't hurt.
[...] 
> So go forth and test. And don't send me any pull requests unless they
> contain *only* regressions or fixes for really nasty bugs.


Oh, I just noticed that 2 important fixes which fix boot failures on
PA-RISC and mn10300 architectures haven't made it to mainline yet.

The regression was introduced in the 3.4 merge window itself (by commit
5fbd036b55 "sched: Cleanup cpu_active madness").

Links to the original posting:
PA_RISC: http://marc.info/?l=linux-parisc&m=133241790810604&w=2
mn10300: http://marc.info/?l=linux-parisc&m=133241580509804&w=2

Mikulas confirmed that this fixes the boot failure on PA-RISC:
https://lkml.org/lkml/2012/5/8/97

Regards,
Srivatsa S. Bhat

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On 13-May-12, at 3:56 PM, Srivatsa S. Bhat wrote:

> The regression was introduced in the 3.4 merge window itself (by  
> commit
> 5fbd036b55 "sched: Cleanup cpu_active madness").
>
> Links to the original posting:
> PA_RISC: http://marc.info/?l=linux-parisc&m=133241790810604&w=2


If I had the above change, I get

   CHK     include/generated/compile.h
   CC      arch/parisc/kernel/smp.o
arch/parisc/kernel/smp.c: In function 'smp_cpu_init':
arch/parisc/kernel/smp.c:300:2: error: implicit declaration of  
function 'notify_cpu_starting' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[1]: *** [arch/parisc/kernel/smp.o] Error 1

Dave
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On 05/14/2012 01:38 AM, John David Anglin wrote:

> On 13-May-12, at 3:56 PM, Srivatsa S. Bhat wrote:
> 
>> The regression was introduced in the 3.4 merge window itself (by commit
>> 5fbd036b55 "sched: Cleanup cpu_active madness").
>>
>> Links to the original posting:
>> PA_RISC: http://marc.info/?l=linux-parisc&m=133241790810604&w=2
> 
> 
> If I had the above change, I get
> 
>   CHK     include/generated/compile.h
>   CC      arch/parisc/kernel/smp.o
> arch/parisc/kernel/smp.c: In function 'smp_cpu_init':
> arch/parisc/kernel/smp.c:300:2: error: implicit declaration of function
> 'notify_cpu_starting' [-Werror=implicit-function-declaration]
> cc1: some warnings being treated as errors
> make[1]: *** [arch/parisc/kernel/smp.o] Error 1
> 


Sorry about that. I neither have the hardware nor the toolchain
to test it. I guess this problem doesn't exist for mn10300 since it
already includes linux/cpu.h when CONFIG_HOTPLUG_CPU=y

Does the below updated patch help for PA-RISC?

----
From: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>

parisc/CPU hotplug: Add missing call to notify_cpu_starting()

The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
---

 arch/parisc/kernel/smp.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)


diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 0bb1d63..4dc7b79 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -31,6 +31,7 @@
 #include <linux/delay.h>
 #include <linux/bitops.h>
 #include <linux/ftrace.h>
+#include <linux/cpu.h>
 
 #include <linux/atomic.h>
 #include <asm/current.h>
@@ -295,8 +296,13 @@ smp_cpu_init(int cpunum)
 
 		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
 		machine_halt();
-	}  
+	}
+
+	notify_cpu_starting(cpunum);
+
+	ipi_call_lock();
 	set_cpu_online(cpunum, true);
+	ipi_call_unlock();
 
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);

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	Thomas Gleixner <tglx@linutronix.de>,
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	eike-kernel@sf-tec.de, linux-parisc@vger.kernel.org,
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To: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
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On Mon, May 14, 2012 at 01:26:23AM +0530, Srivatsa S. Bhat wrote:
> On 05/13/2012 07:34 AM, Linus Torvalds wrote:
> 
> > This is almost certainly the last -rc in this series - things really
> > have calmed down, and I even considered just cutting 3.4 this weekend,
> > but felt that another week wouldn't hurt.
> [...] 
> > So go forth and test. And don't send me any pull requests unless they
> > contain *only* regressions or fixes for really nasty bugs.
> 
> 
> Oh, I just noticed that 2 important fixes which fix boot failures on
> PA-RISC and mn10300 architectures haven't made it to mainline yet.
> 
> The regression was introduced in the 3.4 merge window itself (by commit
> 5fbd036b55 "sched: Cleanup cpu_active madness").
> 
> Links to the original posting:
> PA_RISC: http://marc.info/?l=linux-parisc&m=133241790810604&w=2
> mn10300: http://marc.info/?l=linux-parisc&m=133241580509804&w=2
> 
> Mikulas confirmed that this fixes the boot failure on PA-RISC:
> https://lkml.org/lkml/2012/5/8/97

Yes, indeed my c8000 boots again :-) Only had to add cpu.h for
notify_cpu_starting() to make it complile:

The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Tobias Ulmer <tobiasu@tmux.org>
---
 arch/parisc/kernel/smp.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 0bb1d63..4dc7b79 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -31,6 +31,7 @@
 #include <linux/delay.h>
 #include <linux/bitops.h>
 #include <linux/ftrace.h>
+#include <linux/cpu.h>
 
 #include <linux/atomic.h>
 #include <asm/current.h>
@@ -295,8 +296,13 @@ smp_cpu_init(int cpunum)
 
 		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
 		machine_halt();
-	}  
+	}
+
+	notify_cpu_starting(cpunum);
+
+	ipi_call_lock();
 	set_cpu_online(cpunum, true);
+	ipi_call_unlock();
 
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);
-- 
1.7.3.4


Thanks,
Tobias

> 
> Regards,
> Srivatsa S. Bhat
> 
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To: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
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Yes, the revised change fixes the compilation error.  I'll know in a  
while if
my config boots.

Thanks,
Dave

On 13-May-12, at 4:28 PM, Srivatsa S. Bhat wrote:

> On 05/14/2012 01:38 AM, John David Anglin wrote:
>
>> On 13-May-12, at 3:56 PM, Srivatsa S. Bhat wrote:
>>
>>> The regression was introduced in the 3.4 merge window itself (by  
>>> commit
>>> 5fbd036b55 "sched: Cleanup cpu_active madness").
>>>
>>> Links to the original posting:
>>> PA_RISC: http://marc.info/?l=linux-parisc&m=133241790810604&w=2
>>
>>
>> If I had the above change, I get
>>
>>  CHK     include/generated/compile.h
>>  CC      arch/parisc/kernel/smp.o
>> arch/parisc/kernel/smp.c: In function 'smp_cpu_init':
>> arch/parisc/kernel/smp.c:300:2: error: implicit declaration of  
>> function
>> 'notify_cpu_starting' [-Werror=implicit-function-declaration]
>> cc1: some warnings being treated as errors
>> make[1]: *** [arch/parisc/kernel/smp.o] Error 1
>>
>
>
> Sorry about that. I neither have the hardware nor the toolchain
> to test it. I guess this problem doesn't exist for mn10300 since it
> already includes linux/cpu.h when CONFIG_HOTPLUG_CPU=y
>
> Does the below updated patch help for PA-RISC?
>
> ----
> From: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
>
> parisc/CPU hotplug: Add missing call to notify_cpu_starting()
>
> The scheduler depends on receiving the CPU_STARTING notification,  
> without
> which we end up into a lot of trouble. So add the missing call to
> notify_cpu_starting() in the bringup code.
>
> Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
> ---
>
> arch/parisc/kernel/smp.c |    8 +++++++-
> 1 files changed, 7 insertions(+), 1 deletions(-)
>
>
> diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
> index 0bb1d63..4dc7b79 100644
> --- a/arch/parisc/kernel/smp.c
> +++ b/arch/parisc/kernel/smp.c
> @@ -31,6 +31,7 @@
> #include <linux/delay.h>
> #include <linux/bitops.h>
> #include <linux/ftrace.h>
> +#include <linux/cpu.h>
>
> #include <linux/atomic.h>
> #include <asm/current.h>
> @@ -295,8 +296,13 @@ smp_cpu_init(int cpunum)
>
> 		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
> 		machine_halt();
> -	}
> +	}
> +
> +	notify_cpu_starting(cpunum);
> +
> +	ipi_call_lock();
> 	set_cpu_online(cpunum, true);
> +	ipi_call_unlock();
>
> 	/* Initialise the idle task for this CPU */
> 	atomic_inc(&init_mm.mm_count);
>
> --
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> parisc" in
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>

--
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On 13-May-12, at 4:40 PM, John David Anglin wrote:

> Yes, the revised change fixes the compilation error.  I'll know in a  
> while if
> my config boots.


I successfully booted 3.4-rc7 with this change on rp3440 (4 cpu smp).   
My build also
included cache and other fixes that are being discussed on the parisc  
list.

Dave
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On 13-May-12, at 10:32 AM, Jeroen Roovers wrote:

> I
> can't say it's actually running faster on either system because I
> simply didn't test for that change.

You will only see a significant performance improvement on PA8800/PA8900
machines with the 32 MB cache.

I believe other machines will see an improvement in thread support.   
However,
there is still more to fix in this area.

Dave
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Cc: Vincent <vincent.stehle@laposte.net>,
	Rolf Eike Beer <eike-kernel@sf-tec.de>,
	linux-parisc@vger.kernel.org
To: Helge Deller <deller@gmx.de>
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Hi Helge,

I had a successful bot of 3.4.0-rc7+ this evening.

I updated my running kernel patch to 3.4.  The futex patch is removed  
and Srivatsa S. Bhat's
patch added.

Attached are patch and dmesg log.

Regards,
Dave

On 12-May-12, at 6:50 PM, Helge Deller wrote:

> I have my machines now up and running again.
>
> I tested upstream version (bcc62fb) and got on all my machines the  
> same bug (same Kernel binary started on all):
>
> Backtrace:
> [<1021dc3c>] mpage_readpages+0xf0/0x16c
> [<10257e88>] ext3_readpages+0x28/0x38
> [<101acb90>] __do_page_cache_readahead+0x1e0/0x27c
> [<101acc5c>] ra_submit+0x30/0x40
> [<101acee0>] ondemand_readahead+0xd0/0x26c
>
> or
>
> Backtrace:
> [<1021dc3c>] mpage_readpages+0xf0/0x16c
> [<10257e88>] ext3_readpages+0x28/0x38
> [<101acb90>] __do_page_cache_readahead+0x1e0/0x27c
> [<101acc5c>] ra_submit+0x30/0x40
> [<101acee0>] ondemand_readahead+0xd0/0x26c
> [<101ad1a8>] page_cache_sync_readahead+0x44/0x74
> [<101a38e4>] generic_file_aio_read+0x400/0x764
> [<101e243c>] do_sync_read+0xd4/0x130
> [<101e32f4>] vfs_read+0xac/0x158
> [<101ea47c>] kernel_read+0x40/0x5c
> [<101ea58c>] prepare_binprm+0xf4/0x130
> [<101eae3c>] do_execve+0x2b8/0x3a4
> [<1012199c>] sys_execve+0x64/0x94
> [<10104084>] __execve+0x20/0x34
> [<10136374>] vprintk+0x1e8/0x488
> [<101a83e8>] __free_pages+0x54/0x64
>
>
> all logs attached for the 715/64, B160L and C3000 machines.
>
> I'll test tomorrow your patch (but will try to update my binutils/ 
> gcc prior to that).



--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-2-20889562
Content-Disposition: attachment; filename="linux-3.4-rc7-20120513.d.4"
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	name="linux-3.4-rc7-20120513.d.4"
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diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 9f21ab0..79f694f 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -115,7 +115,9 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 {
 	if (PageAnon(page)) {
 		flush_tlb_page(vma, vmaddr);
+		preempt_disable();
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
+		preempt_enable();
 	}
 }
 
diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index e67eb9c..31835b9 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -1,9 +1,10 @@
 #ifndef _PARISC_MMZONE_H
 #define _PARISC_MMZONE_H
 
+#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
+
 #ifdef CONFIG_DISCONTIGMEM
 
-#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
 extern int npmem_ranges;
 
 struct node_map_data {
@@ -60,7 +61,5 @@ static inline int pfn_valid(int pfn)
 	return 0;
 }
 
-#else /* !CONFIG_DISCONTIGMEM */
-#define MAX_PHYSMEM_RANGES 	1 
 #endif
 #endif /* _PARISC_MMZONE_H */
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index 4e0e7db..d9812d8 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -21,15 +21,27 @@
 #include <asm/types.h>
 #include <asm/cache.h>
 
-#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define clear_page(page)	clear_page_asm((void *)(page))
+#define copy_page(to,from)	copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
+void clear_page_asm(void *page);
+void copy_page_asm(void *to, void *from);
+void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+
+// #define CONFIG_PARISC_TMPALIAS
+
+#ifdef CONFIG_PARISC_TMPALIAS
+void clear_user_highpage(struct page *page, unsigned long vaddr);
+#define clear_user_highpage clear_user_highpage
+struct vm_area_struct;
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma);
+#define __HAVE_ARCH_COPY_USER_HIGHPAGE
+#endif
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index ee99f23..563724d 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -12,11 +12,10 @@
 
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
+#include <linux/mm_types.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
-struct vm_area_struct;
-
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -40,7 +39,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm,addr,ptep, pteval)                        \
+        do{                                                     \
+                set_pte(ptep,pteval);                           \
+                purge_tlb_entries(mm,addr);                     \
+        } while(0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -462,10 +468,13 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #ifdef CONFIG_SMP
 	unsigned long new, old;
 
+	/* ??? This might be racy because the page table updates in
+	   entry.S don't use the same lock.  */
 	do {
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index dcd5510..5df1597 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -141,6 +141,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -230,6 +231,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 9d18189..695f790 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -133,7 +133,7 @@ parisc_cache_init(void)
 	if (pdc_cache_info(&cache_info) < 0)
 		panic("parisc_cache_init: pdc_cache_info failed");
 
-#if 0
+#if 1
 	printk("ic_size %lx dc_size %lx it_size %lx\n",
 		cache_info.ic_size,
 		cache_info.dc_size,
@@ -267,9 +267,11 @@ static inline void
 __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 		   unsigned long physaddr)
 {
+	preempt_disable();
 	flush_dcache_page_asm(physaddr, vmaddr);
 	if (vma->vm_flags & VM_EXEC)
 		flush_icache_page_asm(physaddr, vmaddr);
+	preempt_enable();
 }
 
 void flush_dcache_page(struct page *page)
@@ -315,7 +317,7 @@ void flush_dcache_page(struct page *page)
 		flush_tlb_page(mpnt, addr);
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
+			if (old_addr && parisc_requires_coherency())
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
 			old_addr = addr;
 		}
@@ -330,17 +332,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -374,20 +365,9 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
 
-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
-
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
-{
-	unsigned long flags;
-
-	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start(flags);
-	pdtlb_kernel(page);
-	purge_tlb_end(flags);
-	clear_user_page_asm(page, vaddr);
-}
-EXPORT_SYMBOL(clear_user_page);
+extern void purge_kernel_dcache_page_asm(unsigned long);
+extern void clear_user_page_asm(void *, unsigned long);
+extern void copy_user_page_asm(void *, void *, unsigned long);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
@@ -400,11 +380,26 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
+void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
+{
+	clear_page_asm(vto);
+	if (!parisc_requires_coherency())
+		flush_kernel_dcache_page_asm(vto);
+}
+EXPORT_SYMBOL(clear_user_page);
+
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-		    struct page *pg)
+	struct page *pg)
 {
-	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
+	/* Copy using kernel mapping.  No coherency is needed
+	   (all in kmap/kunmap) on machines that don't support
+	   non-equivalent aliasing.  However, the `from' page
+	   needs to be flushed before it can be accessed through
+	   the kernel mapping. */
+	preempt_disable();
+	flush_dcache_page_asm(__pa(vfrom), vaddr);
+	preempt_enable();
+	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
 		flush_kernel_dcache_page_asm(vto);
 }
@@ -459,8 +454,65 @@ void flush_cache_all(void)
 	on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
 }
 
+static inline unsigned long mm_total_size(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long usize = 0;
+
+	for (vma = mm->mmap; vma; vma = vma->vm_next)
+		usize += vma->vm_end - vma->vm_start;
+	return usize;
+}
+
+static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
+{
+	pte_t *ptep = NULL;
+
+        if (!pgd_none(*pgd)) {
+                pud_t *pud = pud_offset(pgd, addr);
+                if (!pud_none(*pud)) {
+                        pmd_t *pmd = pmd_offset(pud, addr);
+                        if (!pmd_none(*pmd)) {
+                                ptep = pte_offset_map(pmd, addr);
+                        }
+                }
+        }
+	return ptep;
+}
+
 void flush_cache_mm(struct mm_struct *mm)
 {
+	/* Flushing the whole cache on each cpu takes forever on
+	   rp3440, etc.  So, avoid it if the mm isn't too big.
+	   Note: This approach is faster than a range flush when the
+	   context is current, and it works even when non current.  */
+	if (mm_total_size(mm) < parisc_cache_flush_threshold) {
+		struct vm_area_struct *vma;
+
+		if (mm->context == mfsp(3)) {
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				flush_user_dcache_range_asm(vma->vm_start, vma->vm_end);
+				if(vma->vm_flags & VM_EXEC)
+					flush_user_icache_range_asm(vma->vm_start, vma->vm_end);
+			}
+		} else {
+			pgd_t *pgd = mm->pgd;
+
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				unsigned long addr;
+
+				for (addr = vma->vm_start; addr < vma->vm_end; addr += PAGE_SIZE) {
+					pte_t *ptep = get_ptep(pgd, addr);
+					if (ptep != NULL) {
+						pte_t pte = *ptep;
+						__flush_cache_page(vma, addr, page_to_phys(pte_page(pte)));
+					}
+				}
+			}
+		}
+		return;
+	}
+
 #ifdef CONFIG_SMP
 	flush_cache_all();
 #else
@@ -486,20 +538,34 @@ flush_user_icache_range(unsigned long start, unsigned long end)
 		flush_instruction_cache();
 }
 
-
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	int sr3;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
+	if ((end - start) < parisc_cache_flush_threshold) {
+		if (vma->vm_mm->context == mfsp(3)) {
+			flush_user_dcache_range_asm(start,end);
+			if(vma->vm_flags & VM_EXEC)
+				flush_user_icache_range_asm(start,end);
+		} else {
+			unsigned long addr;
+			pgd_t *pgd = vma->vm_mm->pgd;
+
+			for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+				pte_t *ptep = get_ptep(pgd, addr);
+				if (ptep != NULL) {
+					pte_t pte = *ptep;
+					flush_cache_page(vma, addr, pte_pfn(pte));
+				}
+			}
+		}
 	} else {
+#ifdef CONFIG_SMP
 		flush_cache_all();
+#else
+		flush_cache_all_local();
+#endif
 	}
 }
 
@@ -512,3 +578,81 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
+
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	mtsp(mm->context,1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+}
+
+#ifdef CONFIG_PARISC_TMPALIAS
+
+void clear_user_highpage(struct page *page, unsigned long vaddr)
+{
+	void *vto;
+	unsigned long flags;
+
+	/* Clear using TMPALIAS region.  The page doesn't need to
+	   be flushed but the kernel mapping needs to be purged.  */
+
+	vto = kmap_atomic(page, KM_USER0);
+
+	/* The PA-RISC 2.0 Architecture book states on page F-6:
+	   "Before a write-capable translation is enabled, *all*
+	   non-equivalently-aliased translations must be removed
+	   from the page table and purged from the TLB.  (Note
+	   that the caches are not required to be flushed at this
+	   time.)  Before any non-equivalent aliased translation
+	   is re-enabled, the virtual address range for the writeable
+	   page (the entire page) must be flushed from the cache,
+	   and the write-capable translation removed from the page
+	   table and purged from the TLB."  */
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	purge_tlb_end(flags);
+	preempt_disable();
+	clear_user_page_asm(vto, vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma)
+{
+	void *vfrom, *vto;
+	unsigned long flags;
+
+	/* Copy using TMPALIAS region.  This has the advantage
+	   that the `from' page doesn't need to be flushed.  However,
+	   the `to' page must be flushed in copy_user_page_asm since
+	   it can be used to bring in executable code.  */
+
+	vfrom = kmap_atomic(from, KM_USER0);
+	vto = kmap_atomic(to, KM_USER1);
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	pdtlb_kernel(vfrom);
+	purge_tlb_end(flags);
+	preempt_disable();
+	copy_user_page_asm(vto, vfrom, vaddr);
+	flush_dcache_page_asm(__pa(vto), vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER1); */
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+#endif /* CONFIG_PARISC_TMPALIAS */
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 6f05944..3caa199 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -483,7 +483,7 @@
 	 * B <-> _PAGE_DMB (memory break)
 	 *
 	 * Then incredible subtlety: The access rights are
-	 * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
+	 * _PAGE_GATEWAY, _PAGE_EXEC and _PAGE_WRITE
 	 * See 3-14 of the parisc 2.0 manual
 	 *
 	 * Finally, _PAGE_READ goes in the top bit of PL1 (so we
@@ -493,7 +493,7 @@
 
 	/* PAGE_USER indicates the page can be read with user privileges,
 	 * so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1
-	 * contains _PAGE_READ */
+	 * contains _PAGE_READ) */
 	extrd,u,*=      \pte,_PAGE_USER_BIT+32,1,%r0
 	depdi		7,11,3,\prot
 	/* If we're a gateway page, drop PL2 back to zero for promotion
@@ -1777,9 +1777,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1809,7 +1809,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1828,8 +1828,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1852,7 +1853,7 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..8094d3e 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
-	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+	.flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
-	.flags = IRQF_DISABLED | IRQF_PERCPU,
+	.flags = IRQF_PERCPU,
 };
 #endif
 
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
 {
 	local_irq_disable();	/* PARANOID - should already be disabled */
 	mtctl(~0UL, 23);	/* EIRR : clear all pending external intr */
-	claim_cpu_irqs();
 #ifdef CONFIG_SMP
-	if (!cpu_eiem)
+	if (!cpu_eiem) {
+		claim_cpu_irqs();
 		cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+	}
 #else
+	claim_cpu_irqs();
 	cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 93ff3d9..9a29e34 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -199,7 +199,6 @@ ENTRY(flush_instruction_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
 	load32		cache_info, %r1
 
 	/* Flush Instruction Cache */
@@ -208,20 +207,46 @@ ENTRY(flush_instruction_cache_local)
 	LDREG		ICACHE_STRIDE(%r1), %arg1
 	LDREG		ICACHE_COUNT(%r1), %arg2
 	LDREG		ICACHE_LOOP(%r1), %arg3
-	rsm             PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fioneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fisync	/* If loop < 0, do sync */
 
 fimanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fimanyloop	/* Adjusted inner loop decr */
-	fice            %r0(%sr1, %arg0)
-	fice,m		%arg1(%sr1, %arg0)	/* Last fice and addr adjust */
+	fice            %r0(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)	/* Last fice and addr adjust */
 	movb,tr		%arg3, %r31, fimanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fisync	/* Outer loop decr */
 
 fioneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fioneloop	/* Outer loop count decr */
-	fice,m		%arg1(%sr1, %arg0)	/* Fice for one loop */
+	/* Some implementations may flush with a single fice instruction */
+	cmpib,COND(>>=),n	15, %arg2, fioneloop2
+
+fioneloop1:
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	fice,m		%arg1(%sr2, %arg0)
+	addib,COND(>)	-16, %arg2, fioneloop1
+	fice,m		%arg1(%sr2, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fisync	/* Predict branch taken */
+
+fioneloop2:
+	addib,COND(>)	-1, %arg2, fioneloop2	/* Outer loop count decr */
+	fice,m		%arg1(%sr2, %arg0)	/* Fice for one loop */
 
 fisync:
 	sync
@@ -240,8 +265,7 @@ ENTRY(flush_data_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
-	load32 		cache_info, %r1
+	load32		cache_info, %r1
 
 	/* Flush Data Cache */
 
@@ -249,20 +273,46 @@ ENTRY(flush_data_cache_local)
 	LDREG		DCACHE_STRIDE(%r1), %arg1
 	LDREG		DCACHE_COUNT(%r1), %arg2
 	LDREG		DCACHE_LOOP(%r1), %arg3
-	rsm		PSW_SM_I, %r22
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fdoneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fdsync	/* If loop < 0, do sync */
 
 fdmanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fdmanyloop	/* Adjusted inner loop decr */
-	fdce		%r0(%sr1, %arg0)
-	fdce,m		%arg1(%sr1, %arg0)	/* Last fdce and addr adjust */
+	fdce		%r0(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)	/* Last fdce and addr adjust */
 	movb,tr		%arg3, %r31, fdmanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fdsync	/* Outer loop decr */
 
 fdoneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fdoneloop	/* Outer loop count decr */
-	fdce,m		%arg1(%sr1, %arg0)	/* Fdce for one loop */
+	/* Some implementations may flush with a single fdce instruction */
+	cmpib,COND(>>=),n	15, %arg2, fdoneloop2
+
+fdoneloop1:
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	fdce,m		%arg1(%sr2, %arg0)
+	addib,COND(>)	-16, %arg2, fdoneloop1
+	fdce,m		%arg1(%sr2, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fdsync	/* Predict branch taken */
+
+fdoneloop2:
+	addib,COND(>)	-1, %arg2, fdoneloop2	/* Outer loop count decr */
+	fdce,m		%arg1(%sr2, %arg0)	/* Fdce for one loop */
 
 fdsync:
 	syncdma
@@ -277,7 +327,104 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+/* Macros to serialize TLB purge operations on SMP.  */
+
+	.macro	tlb_lock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock,%r1
+	ldo		R%pa_tlb_lock(%r1),\la
+	rsm		PSW_SM_I,\flags
+1:	LDCW		0(\la),\tmp
+	cmpib,<>,n	0,\tmp,3f
+2:	ldw		0(\la),\tmp
+	cmpb,<>		%r0,\tmp,1b
+	nop
+	b,n		2b
+3:
+#endif
+	.endm
+
+	.macro	tlb_unlock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldi		1,\tmp
+	stw		\tmp,0(\la)
+	mtsm		\flags
+#endif
+	.endm
+
+/* Clear page using kernel mapping.  */
+
+ENTRY(clear_page_asm)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+#ifdef CONFIG_64BIT
+
+	/* Unroll the loop.  */
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:
+	std		%r0, 0(%r26)
+	std		%r0, 8(%r26)
+	std		%r0, 16(%r26)
+	std		%r0, 24(%r26)
+	std		%r0, 32(%r26)
+	std		%r0, 40(%r26)
+	std		%r0, 48(%r26)
+	std		%r0, 56(%r26)
+	std		%r0, 64(%r26)
+	std		%r0, 72(%r26)
+	std		%r0, 80(%r26)
+	std		%r0, 88(%r26)
+	std		%r0, 96(%r26)
+	std		%r0, 104(%r26)
+	std		%r0, 112(%r26)
+	std		%r0, 120(%r26)
+
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
+
+#else
+
+	/*
+	 * Note that until (if) we start saving the full 64-bit register
+	 * values on interrupt, we can't use std on a 32 bit kernel.
+	 */
+	ldi		(PAGE_SIZE / 64), %r1
+
+1:
+	stw		%r0, 0(%r26)
+	stw		%r0, 4(%r26)
+	stw		%r0, 8(%r26)
+	stw		%r0, 12(%r26)
+	stw		%r0, 16(%r26)
+	stw		%r0, 20(%r26)
+	stw		%r0, 24(%r26)
+	stw		%r0, 28(%r26)
+	stw		%r0, 32(%r26)
+	stw		%r0, 36(%r26)
+	stw		%r0, 40(%r26)
+	stw		%r0, 44(%r26)
+	stw		%r0, 48(%r26)
+	stw		%r0, 52(%r26)
+	stw		%r0, 56(%r26)
+	stw		%r0, 60(%r26)
+
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		64(%r26), %r26
+#endif
+	bv		%r0(%r2)
+	nop
+	.exit
+
+	.procend
+ENDPROC(clear_page_asm)
+
+/* Copy page using kernel mapping.  */
+
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -285,18 +432,14 @@ ENTRY(copy_user_page_asm)
 #ifdef CONFIG_64BIT
 	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
 	 * Unroll the loop by hand and arrange insn appropriately.
-	 * GCC probably can do this just as well.
+	 * Prefetch doesn't improve performance on rp3440.
+	 * GCC probably can do this just as well...
 	 */
 
-	ldd		0(%r25), %r19
 	ldi		(PAGE_SIZE / 128), %r1
 
-	ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
-	ldw		128(%r25), %r0		/* prefetch 2 */
-
-1:	ldd		8(%r25), %r20
-	ldw		192(%r25), %r0		/* prefetch 3 */
-	ldw		256(%r25), %r0		/* prefetch 4 */
+1:	ldd		0(%r25), %r19
+	ldd		8(%r25), %r20
 
 	ldd		16(%r25), %r21
 	ldd		24(%r25), %r22
@@ -330,20 +473,16 @@ ENTRY(copy_user_page_asm)
 
 	ldd		112(%r25), %r21
 	ldd		120(%r25), %r22
+	ldo		128(%r25), %r25
 	std		%r19, 96(%r26)
 	std		%r20, 104(%r26)
 
-	ldo		128(%r25), %r25
 	std		%r21, 112(%r26)
 	std		%r22, 120(%r26)
-	ldo		128(%r26), %r26
 
-	/* conditional branches nullify on forward taken branch, and on
-	 * non-taken backward branch. Note that .+4 is a backwards branch.
-	 * The ldd should only get executed if the branch is taken.
-	 */
-	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
-	ldd		0(%r25), %r19		/* start next loads */
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
 
 #else
 
@@ -399,7 +538,7 @@ ENTRY(copy_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,8 +561,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
-
 	/*
 	 * We can't do this since copy_user_page is used to bring in
 	 * file data that might have instructions. Since the data would
@@ -435,6 +572,7 @@ ENDPROC(copy_user_page_asm)
 	 * use it if more information is passed into copy_user_page().
 	 * Have to do some measurements to see if it is worthwhile to
 	 * lobby for such a change.
+	 *
 	 */
 
 ENTRY(copy_user_page_asm)
@@ -442,16 +580,21 @@ ENTRY(copy_user_page_asm)
 	.callinfo NO_CALLS
 	.entry
 
+	/* Convert virtual `to' and `from' addresses to physical addresses.
+	   Move `from' physical address to non shadowed register.  */
 	ldil		L%(__PAGE_OFFSET), %r1
 	sub		%r26, %r1, %r26
-	sub		%r25, %r1, %r23		/* move physical addr into non shadowed reg */
+	sub		%r25, %r1, %r23
 
 	ldil		L%(TMPALIAS_MAP_START), %r28
 	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
-	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+#endif
+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
+	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
@@ -466,10 +609,76 @@ ENTRY(copy_user_page_asm)
 
 	/* Purge any old translations */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+	pdtlb,l		0(%r29)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
-	ldi		64, %r1
+#ifdef CONFIG_64BIT
+	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
+	 * Unroll the loop by hand and arrange insn appropriately.
+	 * GCC probably can do this just as well.
+	 */
+
+	ldd		0(%r29), %r19
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:	ldd		8(%r29), %r20
+
+	ldd		16(%r29), %r21
+	ldd		24(%r29), %r22
+	std		%r19, 0(%r28)
+	std		%r20, 8(%r28)
+
+	ldd		32(%r29), %r19
+	ldd		40(%r29), %r20
+	std		%r21, 16(%r28)
+	std		%r22, 24(%r28)
+
+	ldd		48(%r29), %r21
+	ldd		56(%r29), %r22
+	std		%r19, 32(%r28)
+	std		%r20, 40(%r28)
+
+	ldd		64(%r29), %r19
+	ldd		72(%r29), %r20
+	std		%r21, 48(%r28)
+	std		%r22, 56(%r28)
+
+	ldd		80(%r29), %r21
+	ldd		88(%r29), %r22
+	std		%r19, 64(%r28)
+	std		%r20, 72(%r28)
+
+	ldd		 96(%r29), %r19
+	ldd		104(%r29), %r20
+	std		%r21, 80(%r28)
+	std		%r22, 88(%r28)
+
+	ldd		112(%r29), %r21
+	ldd		120(%r29), %r22
+	std		%r19, 96(%r28)
+	std		%r20, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r21, 112(%r28)
+	std		%r22, 120(%r28)
+	ldo		128(%r28), %r28
+
+	/* conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 * The ldd should only get executed if the branch is taken.
+	 */
+	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
+	ldd		0(%r29), %r19		/* start next loads */
+
+#else
+	ldi		(PAGE_SIZE / 64), %r1
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,9 +689,7 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
+1:	ldw		0(%r29), %r19
 	ldw		4(%r29), %r20
 	ldw		8(%r29), %r21
 	ldw		12(%r29), %r22
@@ -515,8 +722,10 @@ ENTRY(copy_user_page_asm)
 	stw		%r21, 56(%r28)
 	stw		%r22, 60(%r28)
 	ldo		64(%r28), %r28
+
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
+#endif
 
 	bv		%r0(%r2)
 	nop
@@ -524,9 +733,8 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -550,7 +758,13 @@ ENTRY(__clear_user_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
@@ -580,8 +794,7 @@ ENTRY(__clear_user_page_asm)
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
-	stw		%r0, 0(%r28)
+1:	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
 	stw		%r0, 12(%r28)
@@ -606,7 +819,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_dcache_page_asm)
 	.proc
@@ -630,7 +843,13 @@ ENTRY(flush_dcache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), %r1
@@ -663,8 +882,17 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		%r1(%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pdtlb		(%r25)
+	nop
 	.exit
 
 	.procend
@@ -692,7 +920,13 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pitlb,l		%r0(%sr0,%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pitlb		(%sr0,%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -725,8 +959,17 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r1(%r28)
 
 	sync
-	bv		%r0(%r2)
+
+#ifdef CONFIG_PA20
+	pitlb,l		%r0(%sr0,%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pitlb		(%sr0,%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
+	bv		%r0(%r2)
+	nop
 	.exit
 
 	.procend
@@ -775,7 +1018,7 @@ ENTRY(flush_kernel_dcache_page_asm)
 	.procend
 ENDPROC(flush_kernel_dcache_page_asm)
 
-ENTRY(purge_kernel_dcache_page)
+ENTRY(purge_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -815,7 +1058,7 @@ ENTRY(purge_kernel_dcache_page)
 	.exit
 
 	.procend
-ENDPROC(purge_kernel_dcache_page)
+ENDPROC(purge_kernel_dcache_page_asm)
 
 ENTRY(flush_user_dcache_range_asm)
 	.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index a7bb757..25835d8 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -158,5 +158,6 @@ extern void _mcount(void);
 EXPORT_SYMBOL(_mcount);
 #endif
 
-/* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+/* from pacache.S -- needed for clear/copy_page */
+EXPORT_SYMBOL(clear_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 12c1ed3..5dd1059 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -314,7 +314,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #if DEBUG_SIG
 	/* Assert that we're flushing in the correct space... */
 	{
-		int sid;
+		unsigned long sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
 		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
 		       sid, frame->tramp);
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 0bb1d63..4dc7b79 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -31,6 +31,7 @@
 #include <linux/delay.h>
 #include <linux/bitops.h>
 #include <linux/ftrace.h>
+#include <linux/cpu.h>
 
 #include <linux/atomic.h>
 #include <asm/current.h>
@@ -295,8 +296,13 @@ smp_cpu_init(int cpunum)
 
 		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
 		machine_halt();
-	}  
+	}
+
+	notify_cpu_starting(cpunum);
+
+	ipi_call_lock();
 	set_cpu_online(cpunum, true);
+	ipi_call_unlock();
 
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..f0cb56e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 70e105d..4a24ba7 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -77,7 +77,7 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 6) < cpt) {
+	if ((cycles_elapsed >> 7) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index fa6f2b8..64a9998 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -50,8 +50,10 @@ SECTIONS
 	. = KERNEL_BINARY_TEXT_START;
 
 	_text = .;		/* Text and read-only data */
-	.text ALIGN(16) : {
+	.head ALIGN(16) : {
 		HEAD_TEXT
+	} = 0
+	.text ALIGN(16) : {
 		TEXT_TEXT
 		SCHED_TEXT
 		LOCK_TEXT
@@ -65,7 +67,7 @@ SECTIONS
 		*(.fixup)
 		*(.lock.text)		/* out-of-line lock text */
 		*(.gnu.warning)
-	} = 0
+	}
 	/* End of text section */
 	_etext = .;
 
diff --git a/arch/parisc/math-emu/cnv_float.h b/arch/parisc/math-emu/cnv_float.h
index 9071e09..37299c7 100644
--- a/arch/parisc/math-emu/cnv_float.h
+++ b/arch/parisc/math-emu/cnv_float.h
@@ -347,16 +347,15 @@
     Sgl_isinexact_to_fix(sgl_value,exponent)
 
 #define Duint_from_sgl_mantissa(sgl_value,exponent,dresultA,dresultB)	\
-  {Sall(sgl_value) <<= SGL_EXP_LENGTH;  /*  left-justify  */		\
+  {unsigned int val = Sall(sgl_value) << SGL_EXP_LENGTH;		\
     if (exponent <= 31) {						\
     	Dintp1(dresultA) = 0;						\
-    	Dintp2(dresultB) = (unsigned)Sall(sgl_value) >> (31 - exponent); \
+    	Dintp2(dresultB) = val >> (31 - exponent);			\
     }									\
     else {								\
-    	Dintp1(dresultA) = Sall(sgl_value) >> (63 - exponent);		\
-    	Dintp2(dresultB) = Sall(sgl_value) << (exponent - 31);		\
+    	Dintp1(dresultA) = val >> (63 - exponent);			\
+    	Dintp2(dresultB) = exponent <= 62 ? val << (exponent - 31) : 0;	\
     }									\
-    Sall(sgl_value) >>= SGL_EXP_LENGTH;  /* return to original */	\
   }
 
 #define Duint_setzero(dresultA,dresultB) 	\
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 6080f6b..231996a 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -574,6 +574,7 @@ out_eoi:
 void
 handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 {
+	struct irqaction *action;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	kstat_incr_irqs_this_cpu(irq, desc);
@@ -581,7 +582,9 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 	if (chip->irq_ack)
 		chip->irq_ack(&desc->irq_data);
 
-	handle_irq_event_percpu(desc, desc->action);
+	action = desc->action;
+	if (action)
+		handle_irq_event_percpu(desc, action);
 
 	if (chip->irq_eoi)
 		chip->irq_eoi(&desc->irq_data);

--Apple-Mail-2-20889562
Content-Disposition: attachment; filename="dmesg.0"
Content-Type: application/octet-stream; x-unix-mode=0640; name="dmesg.0"
Content-Transfer-Encoding: 7bit

Linux version 3.4.0-rc7+ (dave@mx3210) (gcc version 4.7.0 (GCC) ) #2 SMP Sun May 13 17:23:28 EDT 2012
unwind_init: start = 0x404c9000, end = 0x404f6f30, entries = 11763
FP[0] enabled: Rev 1 Model 20
The 64-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00008870 00000491 00000000 00000002 3e0505e7352af711 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 20 rev 4 (0x00000284)
capabilities 0x35
model 9000/800/rp3440  
ic_size 2000000 dc_size 2000000 it_size f0
DC  base 0x0 stride 0x80 count 0x40000 loop 0x1
dc_conf = 0x1882000  alias 0 blk 1 line 4 shift 1
	wt 0 sh 0 cst 1 hv 0
IC  base 0x0 stride 0x80 count 0x40000 loop 0x1
ic_conf = 0x1882000  alias 0 blk 1 line 4 shift 1
	wt 0 sh 0 cst 1 hv 0
D-TLB conf: sh 3 page 1 cst 1 aid 0 pad1 0
I-TLB conf: sh 3 page 1 cst 1 aid 3 pad1 0
parisc_cache_init: Only equivalent aliasing supported!
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
 1) Start 0x0000000100000000 End 0x000000027fdfffff Size   6142 MB
 2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
Total Memory: 10238 MB
initrd: 7f87c000-7ffee61e
initrd: reserving 3f87c000-3ffee61e (mem_max 27fe00000)
On node 0 totalpages: 262144
free_area_init_node: node 0, pgdat 405127c0, node_mem_map 419f7000
  Normal zone: 3584 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 258560 pages, LIFO batch:31
On node 1 totalpages: 1572352
free_area_init_node: node 1, pgdat 40513540, node_mem_map 140000000
  Normal zone: 21497 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 1550855 pages, LIFO batch:31
On node 2 totalpages: 786432
free_area_init_node: node 2, pgdat 405142c0, node_mem_map 4080000000
  Normal zone: 10752 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 775680 pages, LIFO batch:31
PERCPU: Embedded 10 pages/cpu @0000000042800000 s8448 r8192 d24320 u40960
pcpu-alloc: s8448 r8192 d24320 u40960 alloc=10*4096
pcpu-alloc: [0] 00 [0] 01 [0] 02 [0] 03 [0] 04 [0] 05 [0] 06 [0] 07 
pcpu-alloc: [0] 08 [0] 09 [0] 10 [0] 11 [0] 12 [0] 13 [0] 14 [0] 15 
pcpu-alloc: [0] 16 [0] 17 [0] 18 [0] 19 [0] 20 [0] 21 [0] 22 [0] 23 
pcpu-alloc: [0] 24 [0] 25 [0] 26 [0] 27 [0] 28 [0] 29 [0] 30 [0] 31 
SMP: bootstrap CPU ID is 0
Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 2585095
Kernel command line: root=/dev/sda5 console=ttyS1 HOME=/ rootfstype=ext3 palo_kernel=2/vmlinux
PID hash table entries: 4096 (order: 3, 32768 bytes)
Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)
Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Memory: 10280328k/10483712k available (3250k kernel code, 203384k reserved, 1429k data, 216k init)
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x0000004140000000   (266240 MB)
      .init : 0x000000004065c000 - 0x0000000040692000   ( 216 kB)
      .data : 0x000000004042c8e8 - 0x0000000040591e10   (1429 kB)
      .text : 0x0000000040100000 - 0x000000004042c8e8   (3250 kB)
Hierarchical RCU implementation.
NR_IRQS:128
Console: colour dummy device 160x64
------------------------
| Locking API testsuite:
----------------------------------------------------------------------------
                                 | spin |wlock |rlock |mutex | wsem | rsem |
  --------------------------------------------------------------------------
                     A-A deadlock:failed|failed|  ok  |failed|failed|failed|
                 A-B-B-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-B-C-C-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-C-A-B-C deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-B-C-C-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-C-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
                    double unlock:failed|failed|failed|  ok  |failed|failed|
                  initialize held:failed|failed|failed|failed|failed|failed|
                 bad unlock order:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
  --------------------------------------------------------------------------
              recursive read-lock:             |  ok  |             |failed|
           recursive read-lock #2:             |  ok  |             |failed|
            mixed read-write-lock:             |failed|             |failed|
            mixed write-read-lock:             |failed|             |failed|
  --------------------------------------------------------------------------
     hard-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     hard-irqs-on + irq-safe-A/21:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/21:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/12:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/21:failed|failed|  ok  |
         hard-safe-A + irqs-on/12:failed|failed|  ok  |
         soft-safe-A + irqs-on/12:failed|failed|  ok  |
         hard-safe-A + irqs-on/21:failed|failed|  ok  |
         soft-safe-A + irqs-on/21:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/321:failed|failed|  ok  |
      hard-irq lock-inversion/123:failed|failed|  ok  |
      soft-irq lock-inversion/123:failed|failed|  ok  |
      hard-irq lock-inversion/132:failed|failed|  ok  |
      soft-irq lock-inversion/132:failed|failed|  ok  |
      hard-irq lock-inversion/213:failed|failed|  ok  |
      soft-irq lock-inversion/213:failed|failed|  ok  |
      hard-irq lock-inversion/231:failed|failed|  ok  |
      soft-irq lock-inversion/231:failed|failed|  ok  |
      hard-irq lock-inversion/312:failed|failed|  ok  |
      soft-irq lock-inversion/312:failed|failed|  ok  |
      hard-irq lock-inversion/321:failed|failed|  ok  |
      soft-irq lock-inversion/321:failed|failed|  ok  |
      hard-irq read-recursion/123:  ok  |
      soft-irq read-recursion/123:  ok  |
      hard-irq read-recursion/132:  ok  |
      soft-irq read-recursion/132:  ok  |
      hard-irq read-recursion/213:  ok  |
      soft-irq read-recursion/213:  ok  |
      hard-irq read-recursion/231:  ok  |
      soft-irq read-recursion/231:  ok  |
      hard-irq read-recursion/312:  ok  |
      soft-irq read-recursion/312:  ok  |
      hard-irq read-recursion/321:  ok  |
      soft-irq read-recursion/321:  ok  |
--------------------------------------------------------
144 out of 218 testcases failed, as expected. |
----------------------------------------------------
Calibrating delay loop... 1594.36 BogoMIPS (lpj=3188736)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 256
Brought up 1 CPUs
devtmpfs: initialized
atomic64 test passed
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Storm Peak Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x887, 0x00004 }
2. Storm Peak Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x887, 0x00004 }
3. Storm Peak Slow at 0xfffffffffe798000 [152] { 0, 0x0, 0x887, 0x00004 }
4. Storm Peak Slow at 0xfffffffffe799000 [153] { 0, 0x0, 0x887, 0x00004 }
5. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
8. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
9. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
10. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
11. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
12. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
13. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
14. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
Releasing cpu 1 now, hpa=fffffffffe781000
FP[1] enabled: Rev 1 Model 20
Releasing cpu 2 now, hpa=fffffffffe798000
FP[2] enabled: Rev 1 Model 20
Releasing cpu 3 now, hpa=fffffffffe799000
FP[3] enabled: Rev 1 Model 20
CPU(s): 4 x PA8800 (Mako) at 800.007300 MHz
Whole cache flush 9074766 cycles, flushing 5840896 bytes 584238 cycles
Setting cache flush threshold to 2000000 (4 CPUs online)
SBA found Pluto 2.3 at 0xfffffffffed00000
Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
LBA 0:0: PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
pci_bus 0000:00: root bus resource [mem 0xffffffff80000000-0xffffffff8fffffff] (bus address [0x80000000-0x8fffffff])
pci_bus 0000:00: root bus resource [mem 0xffffff0004000000-0xffffff0fffffffff]
pci 0000:00:01.0: [1033:0035] type 00 class 0x0c0310
pci 0000:00:01.0: reg 10: [mem 0xffffffff80002000-0xffffffff80002fff]
pci 0000:00:01.0: supports D1 D2
pci 0000:00:01.0: PME# supported from D0 D1 D2 D3hot
pci 0000:00:01.1: [1033:0035] type 00 class 0x0c0310
pci 0000:00:01.1: reg 10: [mem 0xffffffff80001000-0xffffffff80001fff]
pci 0000:00:01.1: supports D1 D2
pci 0000:00:01.1: PME# supported from D0 D1 D2 D3hot
pci 0000:00:01.2: [1033:00e0] type 00 class 0x0c0320
pci 0000:00:01.2: reg 10: [mem 0xffffffff80000000-0xffffffff800000ff]
pci 0000:00:01.2: supports D1 D2
pci 0000:00:01.2: PME# supported from D0 D1 D2 D3hot
pci 0000:00:02.0: [1095:0649] type 00 class 0x01018f
pci 0000:00:02.0: reg 10: [io  0x0d18-0x0d1f]
pci 0000:00:02.0: reg 14: [io  0x0d24-0x0d27]
pci 0000:00:02.0: reg 18: [io  0x0d10-0x0d17]
pci 0000:00:02.0: reg 1c: [io  0x0d20-0x0d23]
pci 0000:00:02.0: reg 20: [io  0x0d00-0x0d0f]
pci 0000:00:02.0: supports D1 D2
Mercury version TR3.2 (0x32) found at 0xfffffffffed22000
LBA 0:1: PCI host bridge to bus 0000:20
pci_bus 0000:20: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
pci_bus 0000:20: root bus resource [mem 0xffffffff90000000-0xffffffff9fffffff] (bus address [0x90000000-0x9fffffff])
pci_bus 0000:20: root bus resource [mem 0xffffff1004000000-0xffffff1fffffffff]
pci 0000:20:01.0: [1000:0021] type 00 class 0x010000
pci 0000:20:01.0: reg 10: [io  0x12100-0x121ff]
pci 0000:20:01.0: reg 14: [mem 0xffffffff90015000-0xffffffff900153ff 64bit]
pci 0000:20:01.0: reg 1c: [mem 0xffffffff90012000-0xffffffff90013fff 64bit]
pci 0000:20:01.0: supports D1 D2
pci 0000:20:01.1: [1000:0021] type 00 class 0x010000
pci 0000:20:01.1: reg 10: [io  0x12000-0x120ff]
pci 0000:20:01.1: reg 14: [mem 0xffffffff90014000-0xffffffff900143ff 64bit]
pci 0000:20:01.1: reg 1c: [mem 0xffffffff90010000-0xffffffff90011fff 64bit]
pci 0000:20:01.1: supports D1 D2
pci 0000:20:02.0: [14e4:1645] type 00 class 0x020000
pci 0000:20:02.0: reg 10: [mem 0xffffffff90000000-0xffffffff9000ffff 64bit]
pci 0000:20:02.0: PME# supported from D3hot D3cold
Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
LBA 0:2: PCI host bridge to bus 0000:40
pci_bus 0000:40: root bus resource [io  0x20000-0x2ffff] (bus address [0x0000-0xffff])
pci_bus 0000:40: root bus resource [mem 0xffffffffa0000000-0xffffffffafffffff] (bus address [0xa0000000-0xafffffff])
pci_bus 0000:40: root bus resource [mem 0xffffff2004000000-0xffffff2fffffffff]
Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
LBA 0:3: PCI host bridge to bus 0000:60
pci_bus 0000:60: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0xffff])
pci_bus 0000:60: root bus resource [mem 0xffffffffb0000000-0xffffffffbfffffff] (bus address [0xb0000000-0xbfffffff])
pci_bus 0000:60: root bus resource [mem 0xffffff3004000000-0xffffff3fffffffff]
Mercury version TR3.2 (0x32) found at 0xfffffffffed28000
LBA 0:4: PCI host bridge to bus 0000:80
pci_bus 0000:80: root bus resource [io  0x40000-0x4ffff] (bus address [0x0000-0xffff])
pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffcfffffff] (bus address [0xc0000000-0xcfffffff])
pci_bus 0000:80: root bus resource [mem 0xffffff4004000000-0xffffff4fffffffff]
Mercury version TR3.2 (0x32) found at 0xfffffffffed2c000
LBA 0:6: PCI host bridge to bus 0000:c0
pci_bus 0000:c0: root bus resource [io  0x50000-0x5ffff] (bus address [0x0000-0xffff])
pci_bus 0000:c0: root bus resource [mem 0xffffffffe0000000-0xffffffffefffffff] (bus address [0xe0000000-0xefffffff])
pci_bus 0000:c0: root bus resource [mem 0xffffff6004000000-0xffffff6fffffffff]
Mercury version TR3.2 (0x32) found at 0xfffffffffed2e000
LBA: Truncating lmmio_space [fffffffff0000000/fffffffffecffffe] to [fffffffff0000000,fffffffffe77ffff]
LBA 0:7: PCI host bridge to bus 0000:e0
pci_bus 0000:e0: root bus resource [io  0x60000-0x6ffff] (bus address [0x0000-0xffff])
pci_bus 0000:e0: root bus resource [mem 0xfffffffff0000000-0xfffffffffe77ffff] (bus address [0xf0000000-0xfe77ffff])
pci_bus 0000:e0: root bus resource [mem 0xffffff7004000000-0xffffff7fffffffff]
pci 0000:e0:01.0: [103c:1290] type 00 class 0x078000
pci 0000:e0:01.0: reg 18: [mem 0xfffffffff4051000-0xfffffffff405100f]
pci 0000:e0:01.1: [103c:1048] type 00 class 0x070002
pci 0000:e0:01.1: reg 10: [mem 0xfffffffff4050000-0xfffffffff4050fff]
pci 0000:e0:01.1: reg 18: [mem 0xfffffffff4020000-0xfffffffff403ffff pref]
pci 0000:e0:02.0: [1002:5159] type 00 class 0x030000
pci 0000:e0:02.0: reg 10: [mem 0xfffffffff0000000-0xfffffffff3ffffff pref]
pci 0000:e0:02.0: reg 14: [io  0x6e000-0x6e0ff]
pci 0000:e0:02.0: reg 18: [mem 0xfffffffff4040000-0xfffffffff404ffff]
pci 0000:e0:02.0: reg 30: [mem 0xfffffffff4000000-0xfffffffff401ffff pref]
pci 0000:e0:02.0: supports D1 D2
powersw: Soft power switch support not available.
bio: create slab <bio-0> at 0
vgaarb: device added: PCI:0000:e0:02.0,decodes=io+mem,owns=io+mem,locks=none
vgaarb: loaded
vgaarb: bridge control possible 0000:e0:02.0
NET: Registered protocol family 2
IP route cache hash table entries: 524288 (order: 10, 4194304 bytes)
TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP: reno registered
UDP hash table entries: 8192 (order: 6, 262144 bytes)
UDP-Lite hash table entries: 8192 (order: 6, 262144 bytes)
NET: Registered protocol family 1
PCI: CLS 64 bytes
Trying to unpack rootfs image as initramfs...
Freeing initrd memory: 7625k freed
Performance monitoring counters enabled for Storm Peak Slow
msgmni has been set to 20093
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
start plist test
end plist test
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 73) is a 16550A
0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 73) is a 16550A
console [ttyS1] enabled, bootconsole disabled
0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 73) is a 16550A
0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 73) is a 16550A
Linux agpgart interface v0.103
brd: module loaded
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
mousedev: PS/2 mouse device common for all mice
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
TCP: cubic registered
rtc-generic rtc-generic: setting system clock to 2012-05-14 00:36:09 UTC (1336955769)
Freeing unused kernel memory: 216k freed
udevd[836]: starting version 175
SCSI subsystem initialized
tg3.c:v3.123 (March 21, 2012)
libata version 3.00 loaded.
pata_cmd64x 0000:00:02.0: Secondary port is disabled
scsi0 : pata_cmd64x
scsi1 : pata_cmd64x
ata1: PATA max UDMA/100 cmd 0xd18 ctl 0xd24 bmdma 0xd00 irq 69
ata2: DUMMY
pata_cmd64x: active 10 recovery 10 setup 3.
pata_cmd64x: active 10 recovery 10 setup 3.
ata1.00: ATAPI: DW-224E, C.0B, max UDMA/33
pata_cmd64x: active 3 recovery 1 setup 1.
ata1.00: configured for UDMA/33
scsi 0:0:0:0: CD-ROM            TEAC     DW-224E          C.0B PQ: 0 ANSI: 5
sr0: scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray
cdrom: Uniform CD-ROM driver Revision: 3.20
sr 0:0:0:0: Attached scsi CD-ROM sr0
tg3 0000:20:02.0: eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:30:6e:4b:16:4d
tg3 0000:20:02.0: eth0: attached PHY is 5701 (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0])
tg3 0000:20:02.0: eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[0]
tg3 0000:20:02.0: eth0: dma_rwctrl[76ff2d0f] dma_mask[32-bit]
sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 70
sym0: PA-RISC Firmware, ID 7, Fast-80, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi2 : sym-2.2.3
scsi 2:0:0:0: Direct-Access     FUJITSU  MAJ3364MC        HP12 PQ: 0 ANSI: 2
scsi target2:0:0: tagged command queuing enabled, command queue depth 16.
scsi target2:0:0: Beginning Domain Validation
scsi target2:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
scsi target2:0:0: Ending Domain Validation
sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 71
sym1: PA-RISC Firmware, ID 7, Fast-80, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi3 : sym-2.2.3
scsi 3:0:2:0: Direct-Access     SEAGATE  ST318203LC       HP04 PQ: 0 ANSI: 2
scsi target3:0:2: tagged command queuing enabled, command queue depth 16.
scsi target3:0:2: Beginning Domain Validation
scsi target3:0:2: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 15)
scsi target3:0:2: Domain Validation skipping write tests
scsi target3:0:2: Ending Domain Validation
sd 2:0:0:0: [sda] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
sd 3:0:2:0: [sdb] 35566480 512-byte logical blocks: (18.2 GB/16.9 GiB)
sd 2:0:0:0: [sda] Write Protect is off
sd 2:0:0:0: [sda] Mode Sense: ab 00 10 08
sd 3:0:2:0: [sdb] Write Protect is off
sd 3:0:2:0: [sdb] Mode Sense: 9f 00 10 08
sd 2:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA
sd 3:0:2:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA
 sdb: sdb1 sdb2
 sda: sda1 sda2 sda3 < sda5 sda6 sda7 >
sd 3:0:2:0: [sdb] Attached SCSI disk
sd 2:0:0:0: [sda] Attached SCSI disk
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda5): mounted filesystem with writeback data mode
udevd[1019]: starting version 175
udisks-part-id(1135): unaligned access to 0x00000000fafdc98e at ip=0x0000000000012b53
udisks-part-id(1135): unaligned access to 0x00000000fafdc992 at ip=0x0000000000012bc7
udisks-part-id(1135): unaligned access to 0x00000000fafdc99e at ip=0x0000000000012b53
udisks-part-id(1135): unaligned access to 0x00000000fafdc9a2 at ip=0x0000000000012bc7
udisks-part-id(1134): unaligned access to 0x00000000fb3db98e at ip=0x0000000000012b53
Adding 979928k swap on /dev/sda6.  Priority:-1 extents:1 across:979928k 
EXT3-fs (sda5): using internal journal
handle_unaligned: 179 callbacks suppressed
udisks-part-id(1617): unaligned access to 0x00000000fb6239ce at ip=0x0000000000012b53
udisks-part-id(1617): unaligned access to 0x00000000fb6239d2 at ip=0x0000000000012bc7
udisks-part-id(1617): unaligned access to 0x00000000fb6239de at ip=0x0000000000012b53
udisks-part-id(1617): unaligned access to 0x00000000fb6239e2 at ip=0x0000000000012bc7
udisks-part-id(1617): unaligned access to 0x00000000fb6239ee at ip=0x0000000000012b53
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda7): using internal journal
EXT3-fs (sda7): mounted filesystem with writeback data mode
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sdb1): using internal journal
EXT3-fs (sdb1): mounted filesystem with writeback data mode
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sdb2): using internal journal
EXT3-fs (sdb2): mounted filesystem with writeback data mode
NET: Registered protocol family 10
ADDRCONF(NETDEV_UP): eth0: link is not ready
tg3 0000:20:02.0: eth0: Link is up at 100 Mbps, full duplex
tg3 0000:20:02.0: eth0: Flow control is on for TX and on for RX
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).

--Apple-Mail-2-20889562--
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From - Thu Nov 08 21:08:15 2018
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From: Jeroen Roovers <jer@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: kernel BUG at mm/slab.c:3109!
Date: Mon, 14 May 2012 20:48:33 +0200
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This is with the cache-2 patch.

Now trying to build with SLUB to see if the problem goes away. Any more
information needed?


     jer
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From - Thu Nov 08 21:08:15 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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Cc: Vincent <vincent.stehle@laposte.net>,
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To: John David Anglin <dave.anglin@bell.net>
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This is a multi-part message in MIME format.
--------------070101010100020709070002
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On 05/14/2012 03:10 AM, John David Anglin wrote:
> I had a successful bot of 3.4.0-rc7+ this evening.
>
> I updated my running kernel patch to 3.4.  The futex patch is removed 
> and Srivatsa S. Bhat's
> patch added.

Ok, I applied your patch now.
I used latest binutils and (as suggested by Dave) gcc-4.6 branch.
I built Kernel 3.4.0-rc7 as 32bit-binary for my c3000, b160L and 715/64.

The c3000 booted nicely into userspace.

The B160L and the 715/64 (both 32bit-only PA1.X machines) crashed with 
the following trace.
All logs attached.

Any ideas?

Helge



swapper (pid 1): Illegal instruction (code 8)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000000000000000000000000 Not tainted
r00-03  00000000 00000001 101bc460 19c246c0
r04-07  00000017 19e6a5f8 19c22db8 ffeffff1
r08-11  0f2ff000 0f000000 00000033 fff00ff1
r12-15  00000000 00000017 00000001 00000000
r16-19  00000000 00000043 00000000 107e9a80
r20-23  19c245c8 10957000 00000001 00000001
r24-27  00000000 00000000 0000fa80 106e2020
r28-31  0f2ff000 000094b9 19c24740 00009271
sr00-03  00000000 00000001 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10101110 10101114
  IIR: 078112a0    ISR: 00000000  IOR: 0f2ff000
  CPU:        0   CR30: 19c24000 CR31: f00effff
  ORIG_R28: 19e84ffc
  IAOQ[0]: flush_dcache_page_asm+0x28/0x7c
  IAOQ[1]: flush_dcache_page_asm+0x2c/0x7c
  RP(r2): __get_user_pages+0x38c/0x3c4
Backtrace:
  [<101bc460>] __get_user_pages+0x38c/0x3c4
  [<101bc580>] get_user_pages+0x50/0x60
  [<101e1a1c>] get_arg_page+0x64/0xe8
  [<101e1bac>] copy_strings+0x10c/0x248
  [<101e1d10>] copy_strings_kernel+0x28/0x44
  [<101e360c>] do_execve+0x2a0/0x36c
  [<10120598>] sys_execve+0x44/0x7c
  [<10104084>] __execve+0x20/0x34
  [<10133d2c>] vprintk+0x1d8/0x4f4
  [<10134078>] printk+0x30/0x40
  [<10118550>] free_initmem+0x154/0x184
  [<10117cbc>] init_post+0xa0/0xd4
  [<1078a294>] kernel_init+0x210/0x214


--------------070101010100020709070002
Content-Type: text/plain;
 name="715_64.log"
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Content-Disposition: attachment;
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Command line for kernel: 'HOME=/ root=/dev/sda5 pa64root=sda5 ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 32-bit kernelELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 6549504 mediaptr 0x1000
Segment 1 load 00788000 size 176308 mediaptr 0x640000
Segment 2 load 007b4000 size 144916 mediaptr 0x66c000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 3.4.0-rc7-32bit+ (deller@p100) (gcc version 4.6.4 20120514 (prerelease) (GCC) ) #1 Mon May 14 23:10:09 CEST 2012
unwind_init: start = 0x10690000, end = 0x106d5190, entries = 17689
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: Snake.
model 000060a0 00000481 00000000 00000000 773c7d2c 00000000 00000004 00000072 00000072
vers  0000000c
model 9000/715
ic_size 20000 dc_size 20000 it_size 40
DC  base 0x0 stride 0x20 count 0x1000 loop 0x1
dc_conf = 0x61402000  alias 6 blk 1 line 2 shift 0
        wt 0 sh 0 cst 1 hv 0
IC  base 0x0 stride 0x20 count 0x1000 loop 0x1
ic_conf = 0x61402000  alias 6 blk 1 line 2 shift 0
        wt 0 sh 0 cst 1 hv 0
D-TLB conf: sh 3 page 1 cst 1 aid 0 pad1 0
I-TLB conf: sh 3 page 1 cst 1 aid 0 pad1 0
Total Memory: 160 MB
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 40640
Kernel command line: HOME=/ root=/dev/sda5 pa64root=sda5 ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 1024 (order: 0, 4096 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
allocated 327680 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
Memory: 154772k/163840k available (4405k kernel code, 9068k reserved, 1968k data, 320k init)
virtual kernel memory layout:
    vmalloc : 0x00810000 - 0x0f000000   ( 231 MB)
    memory  : 0x10000000 - 0x1a000000   ( 160 MB)
      .init : 0x10788000 - 0x107d8000   ( 320 kB)
      .data : 0x1054d6c4 - 0x10739770   (1968 kB)
      .text : 0x10100000 - 0x1054d6c4   (4405 kB)
NR_IRQS:96
Console: colour dummy device 128x48
Calibrating delay loop... 63.48 BogoMIPS (lpj=317440)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys blkio
xor: measuring software checksum speed
   8regs     :    44.800 MB/sec
   8regs_prefetch:    44.800 MB/sec
   32regs    :    72.800 MB/sec
   32regs_prefetch:    72.800 MB/sec
xor: using function: 32regs_prefetch (72.800 MB/sec)
atomic64 test passed
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Mirage Jr GSC Builtin Graphics at 0xf8000000 [1] { 10, 0x0, 0x012, 0x00085 }
2. Mirage Jr Core BA at 0xf0100000 [2] { 11, 0x0, 0x028, 0x00081 }
3. Mirage Jr Core SCSI at 0xf0106000 [2/0/1] { 10, 0x0, 0x028, 0x00082 }
4. Mirage Jr Core LAN (802.3) at 0xf0107000 [2/0/2] { 10, 0x0, 0x028, 0x0008a }
5. Mirage Jr Core RS-232 at 0xf0105000 [2/0/4] { 10, 0x0, 0x028, 0x0008c }
6. Mirage Jr Core Centronics at 0xf0102000 [2/0/6] { 10, 0x0, 0x028, 0x00074 }
7. Mirage Jr Audio at 0xf0104000 [2/0/8] { 10, 0x0, 0x028, 0x0007b }
8. Mirage Jr Core PC Floppy at 0xf010a000 [2/0/10] { 10, 0x0, 0x028, 0x00083 }
9. Mirage Jr Core PS/2 Port at 0xf0108000 [2/0/11] { 10, 0x0, 0x028, 0x00084 }
10. Mirage Jr Core PS/2 Port at 0xf0108100 [2/0/12] { 10, 0x0, 0x028, 0x00084 }
11. Mirage Jr Wax EISA BA at 0xfc000000 [4] { 11, 0x0, 0x028, 0x00090 }
12. Mirage Jr Wax BA at 0xf0200000 [5] { 11, 0x0, 0x012, 0x0008e }
13. Mirage Jr Wax HIL at 0xf0201000 [5/0/1] { 10, 0x0, 0x012, 0x00073 }
14. Mirage Jr Wax RS-232 at 0xf0202000 [5/0/2] { 10, 0x0, 0x012, 0x0008c }
15. Mirage Jr (715/64) at 0xfffbe000 [8] { 0, 0x0, 0x60a, 0x00004 }
16. Memory at 0xfffbf000 [9] { 1, 0x0, 0x04a, 0x00009 }
CPU(s): 1 x PA7100LC (PCX-L) at 64.000000 MHz
Setting cache flush threshold to e0 (1 CPUs online)
Lasi version 0 at 0xf0100000 found.
LED display at f00e0000 registered
wax at 0xf0200000 found.
Wax EISA Adapter found at 0xfc000000
Enumerating EISA bus
EISA: Probing bus 0 at 4
EISA: Mainboard HWPC000 detected.
EISA: Detected 0 cards.
powersw: Gecko-style soft power switch enabled.
bio: create slab <bio-0> at 0
raid6: int32x1     26 MB/s
raid6: int32x2     29 MB/s
raid6: int32x4     33 MB/s
raid6: int32x8     21 MB/s
raid6: using algorithm int32x4 (33 MB/s)
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Switching to clocksource cr16
NET: Registered protocol family 2
IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
TCP established hash table entries: 8192 (order: 4, 65536 bytes)
TCP bind hash table entries: 8192 (order: 5, 163840 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
TCP: reno registered
UDP hash table entries: 128 (order: 0, 6144 bytes)
UDP-Lite hash table entries: 128 (order: 0, 6144 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Chassis warnings not supported.
Initializing RT-Tester: OK
====[ backtrace testing ]===========
Testing a backtrace from process context.
The following trace is a kernel self test and not a bug!
Backtrace:
 [<10119d14>] dump_stack+0x1c/0x2c
 [<1017d4ec>] backtrace_regression_test+0x44/0x124
 [<10117f48>] do_one_initcall+0x258/0x2b8
 [<1078a208>] kernel_init+0x184/0x214
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a backtrace from irq context.
The following trace is a kernel self test and not a bug!
Backtrace:
 [<10119d14>] dump_stack+0x1c/0x2c
 [<1017d488>] backtrace_test_irq_callback+0x18/0x38
 [<101399d0>] tasklet_action+0x78/0xdc
 [<10139f64>] __do_softirq+0x130/0x17c
 [<1013a020>] run_ksoftirqd+0x70/0x124
 [<10151484>] kthread+0xac/0xb4
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a saved backtrace.
The following trace is a kernel self test and not a bug!
 [<10123624>] save_stack_trace+0x28/0x60
 [<1017d598>] backtrace_regression_test+0xf0/0x124
 [<10117f48>] do_one_initcall+0x258/0x2b8
 [<1078a208>] kernel_init+0x184/0x214
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24
 [<ffffffff>] 0xffffffff
====[ end of backtrace testing ]====
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
msgmni has been set to 302
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
start plist test
end plist test
EISA EEPROM at 0x00810400
PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9a
    id 2b4ded6d-40a00499, conforms to spec rev. 8.04
    graphics card name: HPA208LC1024
sticon: Initializing STI text console.
Console: switching to colour STI console 128x48
Console: switching to colour frame buffer device 128x48
fb0: stifb 1024x768-8 frame buffer device, HPA208LC1024, id: 2b4ded6d, mmio: 0xf8100000
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
2:0:4: ttyS0 at MMIO 0xf0105800 (irq = 18) is a 16550A
console [ttyS0] enabled, bootconsole disabled
console [ttyS0] enabled, bootconsole disabled
5:0:2: ttyS1 at MMIO 0xf0202800 (irq = 25) is a 16550A
Linux agpgart interface v0.103
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 19 [PCSPP,TRISTATE]
parport0: fix this legacy no-device port driver!
brd: module loaded
loop: module loaded
Uniform Multi-Platform E-IDE driver
ide-gd driver 1.18
ide-cd driver 5.00
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2 
scsi0 : LASI SCSI 53c700
scsi 0:0:6:0: Direct-Access     QUANTUM  FIREBALL_TM3200S 300X PQ: 0 ANSI: 2
scsi target0:0:6: Beginning Domain Validation
scsi 0:0:6:0: Enabling Tag Command Queuing
scsi target0:0:6: asynchronous
scsi target0:0:6: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 8)
scsi target0:0:6: Domain Validation skipping write tests
scsi target0:0:6: Ending Domain Validation
st: Version 20101219, fixed bufsize 32768, s/g segs 256
sd 0:0:6:0: Attached scsi generic sg0 type 0
sd 0:0:6:0: [sda] 6281856 512-byte logical blocks: (3.21 GB/2.99 GiB)
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xf0107000, IRQ 17
eth0: 82596 at 0xf0107000, 08:00:09:c2:9e:60 IRQ 17.
sd 0:0:6:0: [sda] Write Protect is off
sd 0:0:6:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
uhci_hcd: USB Universal Host Controller Interface driver
serio: gsc-ps2-keyboard port at 0x0081a000 irq 22 @ 2:0:11
serio: gsc-ps2-mouse port at 0x0081c100 irq 22 @ 2:0:12
mousedev: PS/2 mouse device common for all mice
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: raid10 personality registered for level 10
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
device-mapper: uevent: version 1.0.3
 sda: sda1 sda2 sda3 < sda5 sda6 >
device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: dm-devel@redhat.com
sd 0:0:6:0: [sda] Attached SCSI disk
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
oprofile: using timer interrupt.
TCP: cubic registered
NET: Registered protocol family 17
rtc-generic rtc-generic: setting system clock to 1970-01-04 01:59:05 UTC (266345)
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 192.168.178.50, my address is 192.168.178.64
IP-Config: Complete:
     device=eth0, addr=192.168.178.64, mask=255.255.255.0, gw=192.168.178.1
     host=pa64, domain=box, nis-domain=(none)
     bootserver=192.168.178.50, rootserver=192.168.178.50, rootpath=
md: Waiting for all devices to be available before autodetect
md: If you don't use raid, use raid=noautodetect
md: Autodetecting RAID arrays.
md: Scanned 0 and added 0 devices.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda5): mounted filesystem with writeback data mode
VFS: Mounted root (ext3 filesystem) readonly on device 8:5.
Freeing unused kernel memory: 320k freed
      _______________________________                                                                                                                                                                                                        
     < Your System ate a SPARC! Gah! >                                                                                                                                                                                                       
      -------------------------------                                                                                                                                                                                                        
             \   ^__^                                                                                                                                                                                                                        
                 (__)\       )\/\                                                                                                                                                                                                            
                  U  ||----w |                                                                                                                                                                                                               
                     ||     ||                                                                                                                                                                                                               
swapper (pid 1): Illegal instruction (code 8)                                                                                                                                                                                                
                                                                                                                                                                                                                                             
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                                                                                                                                                                                        
PSW: 00000000000000000000000000000000 Not tainted                                                                                                                                                                                            
r00-03  00000000 00000001 101bc460 19c246c0                                                                                                                                                                                                  
r04-07  00000017 19e6a5f8 19c22db8 ffeffff1                                                                                                                                                                                                  
r08-11  0f2ff000 0f000000 00000033 fff00ff1                                                                                                                                                                                                  
r12-15  00000000 00000017 00000001 00000000                                                                                                                                                                                                  
r16-19  00000000 00000043 00000000 107e9a80                                                                                                                                                                                                  
r20-23  19c245c8 10957000 00000001 00000001                                                                                                                                                                                                  
r24-27  00000000 00000000 0000fa80 106e2020                                                                                                                                                                                                  
r28-31  0f2ff000 000094b9 19c24740 00009271                                                                                                                                                                                                  
sr00-03  00000000 00000001 00000000 00000000                                                                                                                                                                                                 
sr04-07  00000000 00000000 00000000 00000000                                                                                                                                                                                                 
                                                                                                                                                                                                                                             
IASQ: 00000000 00000000 IAOQ: 10101110 10101114                                                                                                                                                                                              
 IIR: 078112a0    ISR: 00000000  IOR: 0f2ff000                                                                                                                                                                                               
 CPU:        0   CR30: 19c24000 CR31: f00effff                                                                                                                                                                                               
 ORIG_R28: 19e84ffc                                                                                                                                                                                                                          
 IAOQ[0]: flush_dcache_page_asm+0x28/0x7c                                                                                                                                                                                                    
 IAOQ[1]: flush_dcache_page_asm+0x2c/0x7c                                                                                                                                                                                                    
 RP(r2): __get_user_pages+0x38c/0x3c4                                                                                                                                                                                                        
Backtrace:                                                                                                                                                                                                                                   
 [<101bc460>] __get_user_pages+0x38c/0x3c4                                                                                                                                                                                                   
 [<101bc580>] get_user_pages+0x50/0x60                                                                                                                                                                                                       
 [<101e1a1c>] get_arg_page+0x64/0xe8                                                                                                                                                                                                         
 [<101e1bac>] copy_strings+0x10c/0x248                                                                                                                                                                                                       
 [<101e1d10>] copy_strings_kernel+0x28/0x44                                                                                                                                                                                                  
 [<101e360c>] do_execve+0x2a0/0x36c                                                                                                                                                                                                          
 [<10120598>] sys_execve+0x44/0x7c                                                                                                                                                                                                           
 [<10104084>] __execve+0x20/0x34                                                                                                                                                                                                             
 [<10133d2c>] vprintk+0x1d8/0x4f4                                                                                                                                                                                                            
 [<10134078>] printk+0x30/0x40                                                                                                                                                                                                               
 [<10118550>] free_initmem+0x154/0x184                                                                                                                                                                                                       
 [<10117cbc>] init_post+0xa0/0xd4                                                                                                                                                                                                            
 [<1078a294>] kernel_init+0x210/0x214                                                                                                                                                                                                        
                                                                                                                                                                                                                                             
Backtrace:                                                                                                                                                                                                                                   
 [<10119d14>] dump_stack+0x1c/0x2c                                                                                                                                                                                                           
 [<1011a290>] die_if_kernel+0xc0/0x1c0                                                                                                                                                                                                       
 [<1011a988>] handle_interruption+0x324/0x6c4                                                                                                                                                                                                
 [<10105078>] intr_check_sig+0x0/0x34                                                                                                                                                                                                        
 [<101d78e0>] mem_cgroup_charge_common+0x50/0x6c                                                                                                                                                                                             
                                                                                                                                                                                                                                             
---[ end trace 47c58df5faf7bacb ]---                                                                                                                                                                                                         
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000bCommand line for kernel: 'HOME=/ root=/dev/sda5 pa64root=sda5 ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux'

--------------070101010100020709070002
Content-Type: text/plain;
 name="b160L.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="b160L.log"

Command line for kernel: 'HOME=/ root=/dev/sda5 pa64root=sda5 ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 32-bit kernelELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 6549504 mediaptr 0x1000
Segment 1 load 00788000 size 176308 mediaptr 0x640000
Segment 2 load 007b4000 size 144916 mediaptr 0x66c000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 3.4.0-rc7-32bit+ (deller@p100) (gcc version 4.6.4 20120514 (prerelease) (GCC) ) #1 Mon May 14 23:10:09 CEST 2012
unwind_init: start = 0x10690000, end = 0x106d5190, entries = 17689
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005020 00000481 00000000 02020202 7794d7fe 100000f0 00000004 000000ba 000000ba
vers  00000008
CPUID vers 15 rev 8 (0x000001e8)
capabilities 0x2
model 9000/778/B160L
ic_size 10000 dc_size 10000 it_size 60
DC  base 0x0 stride 0x20 count 0x400 loop 0x2
dc_conf = 0x41402000  alias 4 blk 1 line 2 shift 0
        wt 0 sh 0 cst 1 hv 0
IC  base 0x0 stride 0x20 count 0x400 loop 0x2
ic_conf = 0x41402000  alias 4 blk 1 line 2 shift 0
        wt 0 sh 0 cst 1 hv 0
D-TLB conf: sh 3 page 1 cst 1 aid 0 pad1 0
I-TLB conf: sh 3 page 1 cst 1 aid 0 pad1 0
Total Memory: 128 MB
LED display at f0190001 registered
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32512
Kernel command line: HOME=/ root=/dev/sda5 pa64root=sda5 ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
allocated 262144 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
Memory: 122460k/131072k available (4405k kernel code, 8612k reserved, 1968k data, 320k init)
virtual kernel memory layout:
    vmalloc : 0x00810000 - 0x0f000000   ( 231 MB)
    memory  : 0x10000000 - 0x18000000   ( 128 MB)
      .init : 0x10788000 - 0x107d8000   ( 320 kB)
      .data : 0x1054d6c4 - 0x10739770   (1968 kB)
      .text : 0x10100000 - 0x1054d6c4   (4405 kB)
NR_IRQS:96
Console: colour dummy device 128x48
Calibrating delay loop... 106.39 BogoMIPS (lpj=531968)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys blkio
xor: measuring software checksum speed
   8regs     :   130.800 MB/sec
   8regs_prefetch:   130.800 MB/sec
   32regs    :   198.400 MB/sec
   32regs_prefetch:   198.400 MB/sec
xor: using function: 32regs_prefetch (198.400 MB/sec)
atomic64 test passed
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Phantom PseudoBC GSC+ Port at 0xffc00000 [8] { 7, 0x0, 0x504, 0x00000 }
2. Dino PCI Bridge at 0xfff80000 [8/0] { 13, 0x3, 0x680, 0x0000a }
3. Merlin+ 132 Dino RS-232 at 0xfff83000 [8/0/63] { 10, 0x0, 0x022, 0x0008c }
4. Merlin 160 Core FW-SCSI at 0xfff8c000 [8/12] { 4, 0x0, 0x03d, 0x00089 }
5. Merlin 160 Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x03d, 0x00081 }, additional addresses: 0xffd0c000 0xffc00000 
6. Merlin 160 Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x03d, 0x0008c }
7. Merlin 160 Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x03d, 0x00082 }
8. Merlin 160 Core LAN (802.3) at 0xffd07000 [8/16/6] { 10, 0x0, 0x03d, 0x0008a }
9. Merlin 160 Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x03d, 0x00074 }, additional addresses: 0xffd01000 0xffd03000 
10. Merlin 160 Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x03d, 0x0007b }
11. Merlin 160 Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x03d, 0x00084 }
12. Merlin 160 Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x03d, 0x00084 }
13. Coral SGC Graphics at 0xfa000000 [8/4] { 10, 0x0, 0x004, 0x00077 }
14. Coral SGC Graphics at 0xf4000000 [8/8] { 10, 0x0, 0x004, 0x00077 }
15. Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 0x00085 }, additional addresses: 0xf0011000 
16. Merlin L2 160 (9000/778/B160L) at 0xfffbe000 [62] { 0, 0x0, 0x502, 0x00004 }
17. Memory at 0xfffbf000 [63] { 1, 0x0, 0x067, 0x00009 }
18. Merlin+ 132 Dino PS/2 Port at 0xfff81000 [1] { 10, 0x0, 0x022, 0x00096 }
CPU(s): 1 x PA7300LC (PCX-L2) at 160.000000 MHz
Setting cache flush threshold to 8a0 (1 CPUs online)
Lasi version 0 at 0xffd00000 found.
Dino version 3.1 found at 0xfff80000
Dino: No PCI devices enabled.
dino 8:0: PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
powersw: Soft power switch at 0xf0140000 enabled.
bio: create slab <bio-0> at 0
raid6: int32x1     60 MB/s
raid6: int32x2     71 MB/s
raid6: int32x4     85 MB/s
raid6: int32x8     61 MB/s
raid6: using algorithm int32x4 (85 MB/s)
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Switching to clocksource cr16
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 4, 81920 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP: reno registered
UDP hash table entries: 128 (order: 0, 6144 bytes)
UDP-Lite hash table entries: 128 (order: 0, 6144 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Enabling PDC chassis warnings support v0.05
Initializing RT-Tester: OK
====[ backtrace testing ]===========
Testing a backtrace from process context.
The following trace is a kernel self test and not a bug!
Backtrace:
 [<10119d14>] dump_stack+0x1c/0x2c
 [<1017d4ec>] backtrace_regression_test+0x44/0x124
 [<10117f48>] do_one_initcall+0x258/0x2b8
 [<1078a208>] kernel_init+0x184/0x214
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a backtrace from irq context.
The following trace is a kernel self test and not a bug!
Backtrace:
 [<10119d14>] dump_stack+0x1c/0x2c
 [<1017d488>] backtrace_test_irq_callback+0x18/0x38
 [<101399d0>] tasklet_action+0x78/0xdc
 [<10139f64>] __do_softirq+0x130/0x17c
 [<1013a020>] run_ksoftirqd+0x70/0x124
 [<10151484>] kthread+0xac/0xb4
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a saved backtrace.
The following trace is a kernel self test and not a bug!
 [<10123624>] save_stack_trace+0x28/0x60
 [<1017d598>] backtrace_regression_test+0xf0/0x124
 [<10117f48>] do_one_initcall+0x258/0x2b8
 [<1078a208>] kernel_init+0x184/0x214
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24
 [<ffffffff>] 0xffffffff
====[ end of backtrace testing ]====
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
msgmni has been set to 239
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
start plist test
end plist test
PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9a
    id 2bcb015a-9a02587, conforms to spec rev. 8.04
    graphics card name: HPA4071B
    id 2d08c0a7-9a02587, conforms to spec rev. 8.07
    graphics card name: HPA4450AX1024
    id 2d08c0a7-9a02587, conforms to spec rev. 8.07
    graphics card name: INTERNAL_EG_X1024
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, HPA4071B, id: 2bcb015a, mmio: 0xfa100000
fb1: stifb 1024x768-8 frame buffer device, HPA4450AX1024, id: 2d08c0a7, mmio: 0xf4100000
fb2: stifb 1024x768-8 frame buffer device, INTERNAL_EG_X1024, id: 2d08c0a7, mmio: 0xf8100000
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
8:16:4: ttyS0 at MMIO 0xffd05800 (irq = 16) is a 16550A
console [ttyS0] enabled, bootconsole disabled
console [ttyS0] enabled, bootconsole disabled
8:0:63: ttyS1 at MMIO 0xfff83800 (irq = 22) is a 16550A
Linux agpgart interface v0.103
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 19 [PCSPP,TRISTATE]
parport0: fix this legacy no-device port driver!
brd: module loaded
loop: module loaded
Uniform Multi-Platform E-IDE driver
ide-gd driver 1.18
ide-cd driver 5.00
zalon_probe: Zalon version 1, IRQ 67
ncr53c720-0: rev 0xf irq 67
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3g
scsi 0:0:6:0: Direct-Access     SEAGATE  ST32171W         HP03 PQ: 0 ANSI: 2
scsi target0:0:6: Beginning Domain Validation
scsi target0:0:6: asynchronous
scsi target0:0:6: wide asynchronous
scsi target0:0:6: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
scsi target0:0:6: Domain Validation skipping write tests
scsi target0:0:6: Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
scsi 1:0:1:0: CD-ROM            PHILIPS  PCA80SC          V3-0 PQ: 0 ANSI: 2
scsi target1:0:1: Beginning Domain Validation
scsi target1:0:1: asynchronous
scsi target1:0:1: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 8)
scsi target1:0:1: Domain Validation skipping write tests
scsi target1:0:1: Ending Domain Validation
st: Version 20101219, fixed bufsize 32768, s/g segs 256
sd 0:0:6:0: [sda] 4194685 512-byte logical blocks: (2.14 GB/2.00 GiB)
sd 0:0:6:0: [sda] Write Protect is off
sr0: scsi-1 drive
cdrom: Uniform CD-ROM driver Revision: 3.20
sd 0:0:6:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
sd 0:0:6:0: Attached scsi generic sg0 type 0
sr 1:0:1:0: Attached scsi generic sg1 type 5
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xffd07000, IRQ 18
eth0: 82596 at 0xffd07000, 08:00:09:ef:34:f5 IRQ 18.
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
uhci_hcd: USB Universal Host Controller Interface driver
serio: gsc-ps2-keyboard port at 0x0081a000 irq 21 @ 8:16:7
serio: gsc-ps2-mouse port at 0x0081c100 irq 21 @ 8:16:8
 sda: sda1 sda2 sda3 < sda5 sda6 >
mousedev: PS/2 mouse device common for all mice
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: raid10 personality registered for level 10
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
device-mapper: uevent: version 1.0.3
sd 0:0:6:0: [sda] Attached SCSI disk
device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: dm-devel@redhat.com
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
oprofile: using timer interrupt.
TCP: cubic registered
NET: Registered protocol family 17
rtc-generic rtc-generic: setting system clock to 1987-04-14 10:58:29 UTC (545396309)
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 192.168.178.50, my address is 192.168.178.65
IP-Config: Complete:
     device=eth0, addr=192.168.178.65, mask=255.255.255.0, gw=192.168.178.1
     host=b160, domain=box, nis-domain=(none)
     bootserver=192.168.178.50, rootserver=192.168.178.50, rootpath=
md: Waiting for all devices to be available before autodetect
md: If you don't use raid, use raid=noautodetect
md: Autodetecting RAID arrays.
md: Scanned 0 and added 0 devices.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda5): mounted filesystem with writeback data mode
VFS: Mounted root (ext3 filesystem) readonly on device 8:5.
Freeing unused kernel memory: 320k freed
      _______________________________ 
     < Your System ate a SPARC! Gah! >
      ------------------------------- 
             \   ^__^
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
swapper (pid 1): Illegal instruction (code 8)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000000000000000000000000 Not tainted
r00-03  00000000 00000001 101bc460 17c246c0
r04-07  00000017 17eaa5f8 17c22db8 ffeffff1
r08-11  0f2ff000 0f000000 00000033 fff00ff1
r12-15  00000000 00000017 00000001 00000000
r16-19  00000000 00000043 00000000 107e8a80
r20-23  17c245c8 108fc000 00000001 00000001
r24-27  00000000 00000000 0000fa80 106e2020
r28-31  0f2ff000 000074ee 17c24740 000072e6
sr00-03  00000000 00000001 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10101110 10101114
 IIR: 078112a0    ISR: 00000000  IOR: 0f2ff000
 CPU:        0   CR30: 17c24000 CR31: f0102978
 ORIG_R28: 17ec4ffc
 IAOQ[0]: flush_dcache_page_asm+0x28/0x7c
 IAOQ[1]: flush_dcache_page_asm+0x2c/0x7c
 RP(r2): __get_user_pages+0x38c/0x3c4
Backtrace:
 [<101bc460>] __get_user_pages+0x38c/0x3c4
 [<101bc580>] get_user_pages+0x50/0x60
 [<101e1a1c>] get_arg_page+0x64/0xe8
 [<101e1bac>] copy_strings+0x10c/0x248
 [<101e1d10>] copy_strings_kernel+0x28/0x44
 [<101e360c>] do_execve+0x2a0/0x36c
 [<10120598>] sys_execve+0x44/0x7c
 [<10104084>] __execve+0x20/0x34
 [<10133d2c>] vprintk+0x1d8/0x4f4
 [<10134078>] printk+0x30/0x40
 [<10118550>] free_initmem+0x154/0x184
 [<10117cbc>] init_post+0xa0/0xd4
 [<1078a294>] kernel_init+0x210/0x214

Backtrace:
 [<10119d14>] dump_stack+0x1c/0x2c
 [<1011a290>] die_if_kernel+0xc0/0x1c0
 [<1011a988>] handle_interruption+0x324/0x6c4
 [<10105078>] intr_check_sig+0x0/0x34
 [<101d78e0>] mem_cgroup_charge_common+0x50/0x6c
 [<101bc440>] __get_user_pages+0x36c/0x3c4
 [<101bc580>] get_user_pages+0x50/0x60
 [<101e1a1c>] get_arg_page+0x64/0xe8
 [<101e1bac>] copy_strings+0x10c/0x248
 [<101e1d10>] copy_strings_kernel+0x28/0x44
 [<101e360c>] do_execve+0x2a0/0x36c
 [<10120598>] sys_execve+0x44/0x7c
 [<10104084>] __execve+0x20/0x34
 [<10133d2c>] vprintk+0x1d8/0x4f4
 [<10134078>] printk+0x30/0x40
 [<10118550>] free_initmem+0x154/0x184

---[ end trace 3da5cee95bb8512d ]---
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b


--------------070101010100020709070002
Content-Type: text/plain;
 name="c3000.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="c3000.log"

Command line for kernel: 'HOME=/ root=/dev/sda3 pa64root=sda5 ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... 
This box can boot either 32 or 64-bit kernels...Only see a 32-bit kernel, using thatELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 6549504 mediaptr 0x1000
Segment 1 load 00788000 size 176308 mediaptr 0x640000
Segment 2 load 007b4000 size 144916 mediaptr 0x66c000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 3.4.0-rc7-32bit+ (deller@p100) (gcc version 4.6.4 20120514 (prerelease) (GCC) ) #1 Mon May 14 23:10:09 CEST 2012
unwind_init: start = 0x10690000, end = 0x106d5190, entries = 17689
FP[0] enabled: Rev 1 Model 19
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005dc0 00000481 00000000 00000002 777c3e84 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 19 rev 11 (0x0000026b)
capabilities 0x7
model 9000/785/C3700
ic_size c0000 dc_size 180000 it_size f0
DC  base 0x0 stride 0x40 count 0x6000 loop 0x1
dc_conf = 0xb1802000  alias 11 blk 1 line 4 shift 0
        wt 0 sh 0 cst 1 hv 0
IC  base 0x20000 stride 0x40 count 0xc00 loop 0x1
ic_conf = 0x91802000  alias 9 blk 1 line 4 shift 0
        wt 0 sh 0 cst 1 hv 0
D-TLB conf: sh 3 page 1 cst 1 aid 0 pad1 0
I-TLB conf: sh 3 page 1 cst 1 aid 3 pad1 0
Total Memory: 2048 MB
LCD display at f05d0008,f05d0000 registered
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 520192
Kernel command line: HOME=/ root=/dev/sda3 pa64root=sda5 ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 4096 (order: 2, 16384 bytes)
Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 131072 (order: 7, 524288 bytes)
allocated 4194304 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
Memory: 2065892k/2097152k available (4405k kernel code, 31260k reserved, 1968k data, 320k init)
virtual kernel memory layout:
    vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
    memory  : 0x10000000 - 0x90000000   (2048 MB)
      .init : 0x10788000 - 0x107d8000   ( 320 kB)
      .data : 0x1054d6c4 - 0x10739770   (1968 kB)
      .text : 0x10100000 - 0x1054d6c4   (4405 kB)
NR_IRQS:96
Console: colour dummy device 128x48
Calibrating delay loop... 1495.85 BogoMIPS (lpj=7479296)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys blkio
xor: measuring software checksum speed
   8regs     :  1749.200 MB/sec
   8regs_prefetch:  1727.600 MB/sec
   32regs    :  1446.400 MB/sec
   32regs_prefetch:  1436.800 MB/sec
xor: using function: 8regs (1749.200 MB/sec)
atomic64 test passed
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. Allegro W2 at 0xfffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
7. Memory at 0xfed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
Setting cache flush threshold to 8a0 (1 CPUs online)
SBA found Astro 2.1 at 0xfed00000
Elroy version TR4.0 (0x5) found at 0xfed30000
LBA 10:0: PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
pci_bus 0000:00: root bus resource [mem 0xf2000000-0xf23fffff]
PCI: Enabled native mode for NS87415 (pif=0x8f)
Elroy version TR4.0 (0x5) found at 0xfed32000
LBA 10:1: PCI host bridge to bus 0000:01
pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
pci_bus 0000:01: root bus resource [mem 0xf6000000-0xf6ffffff]
pci_bus 0000:01: root bus resource [mem 0xf2400000-0xf27fffff]
pci 0000:01:04.0: no compatible bridge window for [mem 0xf6000000-0xf7ffffff]
iosapic: no IRTE for 0000:01:04.0 (IRQ not connected?)
pci 0000:01:05.0: no compatible bridge window for [mem 0xf8000000-0xf8ffffff pref]
iosapic: no IRTE for 0000:01:05.0 (IRQ not connected?)
pci 0000:01:06.0: PCI bridge to [bus 02-ff]
pci 0000:01:06.0: can't handle 64-bit address space for bridge
pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]
pci 0000:01:06.0: no compatible bridge window for [mem 0xf9000000-0xfbffffff]
pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]
pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]
pci 0000:01:06.0: device not available (can't reserve [mem 0xf9000000-0xfbffffff])
pci 0000:01:06.0: Error enabling bridge (-22), continuing
Elroy version TR4.0 (0x5) found at 0xfed38000
LBA 10:4: PCI host bridge to bus 0000:03
pci_bus 0000:03: root bus resource [io  0x28000-0x29fff] (bus address [0x8000-0x9fff])
pci_bus 0000:03: root bus resource [mem 0xf3000000-0xf33fffff]
Elroy version TR4.0 (0x5) found at 0xfed3c000
LBA 10:6: PCI host bridge to bus 0000:04
pci_bus 0000:04: root bus resource [io  0x3c000-0x3dfff] (bus address [0xc000-0xdfff])
pci_bus 0000:04: root bus resource [mem 0xf4000000-0xf5ffffff]
pci_bus 0000:04: root bus resource [mem 0xf3800000-0xf3bfffff]
iosapic: hpa not registered for 0000:04:02.0
powersw: Soft power switch at 0xf0400804 enabled.
bio: create slab <bio-0> at 0
raid6: int32x1    393 MB/s
raid6: int32x2    481 MB/s
raid6: int32x4    524 MB/s
raid6: int32x8    477 MB/s
raid6: using algorithm int32x4 (524 MB/s)
vgaarb: device added: PCI:0000:02:00.0,decodes=io+mem,owns=none,locks=none
vgaarb: loaded
vgaarb: bridge control possible 0000:02:00.0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Switching to clocksource cr16
NET: Registered protocol family 2
IP route cache hash table entries: 65536 (order: 6, 262144 bytes)
TCP established hash table entries: 262144 (order: 9, 2097152 bytes)
TCP bind hash table entries: 65536 (order: 8, 1310720 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP: reno registered
UDP hash table entries: 1024 (order: 3, 49152 bytes)
UDP-Lite hash table entries: 1024 (order: 3, 49152 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 67)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
Enabling PDC chassis warnings support v0.05
Initializing RT-Tester: OK
====[ backtrace testing ]===========
Testing a backtrace from process context.
The following trace is a kernel self test and not a bug!
Backtrace:
 [<10119d14>] dump_stack+0x1c/0x2c
 [<1017d4ec>] backtrace_regression_test+0x44/0x124
 [<10117f48>] do_one_initcall+0x258/0x2b8
 [<1078a208>] kernel_init+0x184/0x214
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a backtrace from irq context.
The following trace is a kernel self test and not a bug!
Backtrace:
 [<10119d14>] dump_stack+0x1c/0x2c
 [<1017d488>] backtrace_test_irq_callback+0x18/0x38
 [<101399d0>] tasklet_action+0x78/0xdc
 [<10139f64>] __do_softirq+0x130/0x17c
 [<1013a020>] run_ksoftirqd+0x70/0x124
 [<10151484>] kthread+0xac/0xb4
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a saved backtrace.
The following trace is a kernel self test and not a bug!
 [<10123624>] save_stack_trace+0x28/0x60
 [<1017d598>] backtrace_regression_test+0xf0/0x124
 [<10117f48>] do_one_initcall+0x258/0x2b8
 [<1078a208>] kernel_init+0x184/0x214
 [<1010405c>] ret_from_kernel_thread+0x1c/0x24
 [<ffffffff>] 0xffffffff
====[ end of backtrace testing ]====
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
msgmni has been set to 4034
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
start plist test
end plist test
PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9a
sti 0000:01:04.0: device not available (can't reserve [mem 0xf6000000-0xf7ffffff])
sti 0000:01:04.0: Cannot enable PCI device
sti: probe of 0000:01:04.0 failed with error -22
STI PCI graphic ROM found at f3800000 (2048 kB), fb at f4000000 (32 MB)
    id 35acda30-9a02587, conforms to spec rev. 8.0d
    graphics card name: A1262A
sticon: Initializing STI text console.
Console: switching to colour STI console 128x48
matroxfb 0000:02:00.0: enabling SERR and PARITY (0007 -> 0147)
matroxfb: Matrox G450 detected
PInS memtype = 4
matroxfb: cannot determine memory size
matroxfb: probe of 0000:02:00.0 failed with error -1
stifb: 'A1262A' (id: 0x35acda30) not supported.
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 3) is a 16550A
console [ttyS0] enabled, bootconsole disabled
console [ttyS0] enabled, bootconsole disabled
serial8250: ttyS1 at I/O 0x2f8 (irq = 4) is a 16550A
Linux agpgart interface v0.103
brd: module loaded
loop: module loaded
Uniform Multi-Platform E-IDE driver
ns87415 0000:00:0e.0: IDE controller (0x100b:0x0002 rev 0x03)
ns87415 0000:00:0e.0: 100% native mode on irq 7
    ide0: BM-DMA at 0x0a00-0x0a07
    ide1: BM-DMA at 0x0a08-0x0a0f
hda: CD-532E-B, ATAPI CD/DVD-ROM drive
ide0 at 0xf00-0xf07,0xe02 on irq 7
ide1 at 0xd00-0xd07,0xb02 on irq 7
ide-gd driver 1.18
ide-cd driver 5.00
ide-cd: hda: ATAPI 32X CD-ROM drive, 128kB Cache
cdrom: Uniform CD-ROM driver Revision: 3.20
sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 68
sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
sym0: SCSI BUS mode change from SE to SE.
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
sym1: <896> rev 0x7 at pci 0000:00:0f.1 irq 68
sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.2.3
scsi 1:0:5:0: Direct-Access     SEAGATE  ST39102LC        HP01 PQ: 0 ANSI: 2
scsi target1:0:5: tagged command queuing enabled, command queue depth 16.
scsi target1:0:5: Beginning Domain Validation
scsi target1:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 15)
scsi target1:0:5: Domain Validation skipping write tests
scsi target1:0:5: Ending Domain Validation
scsi 1:0:6:0: Direct-Access     HP 36.4G ST336607LC       HPC3 PQ: 0 ANSI: 3
scsi target1:0:6: tagged command queuing enabled, command queue depth 16.
scsi target1:0:6: Beginning Domain Validation
scsi target1:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
scsi target1:0:6: Domain Validation skipping write tests
scsi target1:0:6: Ending Domain Validation
st: Version 20101219, fixed bufsize 32768, s/g segs 256
sd 1:0:5:0: Attached scsi generic sg0 type 0
sd 1:0:6:0: Attached scsi generic sg1 type 0
Linux Tulip driver version 1.1.15 (Feb 27, 2007)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1
net eth0: Digital DS21142/43 Tulip rev 65 at Port 0x1000, 00:30:6e:48:aa:64, IRQ 65
tulip1: EEPROM default media type Autosense
tulip1: Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block
tulip1: Index #1 - Media 10base2 (#1) described by a 21142 Serial PHY (2) block
tulip1: Index #2 - Media AUI (#2) described by a 21142 Serial PHY (2) block
tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101
sd 1:0:5:0: [sda] 17773524 512-byte logical blocks: (9.10 GB/8.47 GiB)
sd 1:0:6:0: [sdb] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
sd 1:0:5:0: [sda] Write Protect is off
sd 1:0:6:0: [sdb] Write Protect is off
net eth1: Digital DS21142/43 Tulip rev 33 at Port 0x28000, 00:60:b0:7a:12:89, IRQ 71
LASI 82596 driver - Revision: 1.30
sd 1:0:5:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
sd 1:0:6:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci_hcd 0000:00:0e.2: OHCI Host Controller
ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:0e.2: irq 1, io mem 0xf2007000
 sda: sda1 sda2 sda3 sda4
 sdb: sdb1 sdb2 sdb3 sdb4
usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: OHCI Host Controller
usb usb1: Manufacturer: Linux 3.4.0-rc7-32bit+ ohci_hcd
usb usb1: SerialNumber: 0000:00:0e.2
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
uhci_hcd: USB Universal Host Controller Interface driver
mousedev: PS/2 mouse device common for all mice
sd 1:0:6:0: [sdb] Attached SCSI disk
sd 1:0:5:0: [sda] Attached SCSI disk
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: raid10 personality registered for level 10
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
device-mapper: uevent: version 1.0.3
device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: dm-devel@redhat.com
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
oprofile: using timer interrupt.
TCP: cubic registered
NET: Registered protocol family 17
rtc-generic rtc-generic: setting system clock to 2012-05-14 21:31:39 UTC (1337031099)
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 192.168.178.50, my address is 192.168.178.66
IP-Config: Complete:
     device=eth0, addr=192.168.178.66, mask=255.255.255.0, gw=192.168.178.1
     host=c3000, domain=box, nis-domain=(none)
     bootserver=192.168.178.50, rootserver=192.168.178.50, rootpath=
md: Waiting for all devices to be available before autodetect
md: If you don't use raid, use raid=noautodetect
md: Autodetecting RAID arrays.
md: Scanned 0 and added 0 devices.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda3): mounted filesystem with writeback data mode
VFS: Mounted root (ext3 filesystem) readonly on device 8:3.
Freeing unused kernel memory: 320k freed
modprobe: FATAL: Could not load /lib/modules/3.4.0-rc7-32bit+/modules.dep: No such file or directory

INIT: version 2.88 booting

--------------070101010100020709070002--
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From - Thu Nov 08 21:08:15 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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Cc: Vincent <vincent.stehle@laposte.net>,
	Rolf Eike Beer <eike-kernel@sf-tec.de>,
	linux-parisc@vger.kernel.org
To: Helge Deller <deller@gmx.de>
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On 14-May-12, at 6:11 PM, Helge Deller wrote:

> The B160L and the 715/64 (both 32bit-only PA1.X machines) crashed  
> with the following trace.
> All logs attached.
>
> Any ideas?

This is exactly the same failure as reported by Vincent.

The most likely problem is the PA 1.1 tmpalias support in entry.S is  
broken.  For example,
the cache stride that is loaded in flush_dcache_page_asm to register  
r1 is wrong.  Probably,
the do_alias macro is wrong for PA 1.1.  This is hunk of code that  
should be executed
when a fdc non access fault occurs.

nadtlb_check_alias_11:
         do_alias        spc,t0,t1,va,pte,prot,nadtlb_emulate

         idtlba          pte,(va)
         idtlbp          prot,(va)

         rfir
         nop

The TLB insert instructions on PA 1.1 have a different format than on  
PA 2.0.  I'm not sure
how this would corrupt r1.

On the other hand, I had asked Vincent to put a "b,n ." instruction  
just before the fdc loop,
boot, hit the TOC button, and capture the setup registers for the  
flush operation.  It's possible
the stride variable has been clobbered.

Dave

--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:08:15 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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Cc: Helge Deller <deller@gmx.de>, Vincent <vincent.stehle@laposte.net>,
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In particular, compare below to what happens in a normal non access  
fault:

nadtlb_miss_11:
        get_pgd         spc,ptp

        space_check     spc,t0,nadtlb_fault

        L2_ptep         ptp,pte,t0,va,nadtlb_check_alias_11

        update_ptep     ptp,pte,t0,t1

        make_insert_tlb_11      spc,pte,prot


        mfsp            %sr1,t0  /* Save sr1 so we can use it in tlb  
inserts */
        mtsp            spc,%sr1

        idtlba          pte,(%sr1,va)
        idtlbp          prot,(%sr1,va)

        mtsp            t0, %sr1        /* Restore sr1 */

        rfir
        nop

On 14-May-12, at 6:38 PM, John David Anglin wrote:

> On 14-May-12, at 6:11 PM, Helge Deller wrote:
>
>> The B160L and the 715/64 (both 32bit-only PA1.X machines) crashed  
>> with the following trace.
>> All logs attached.
>>
>> Any ideas?
>
> This is exactly the same failure as reported by Vincent.
>
> The most likely problem is the PA 1.1 tmpalias support in entry.S is  
> broken.  For example,
> the cache stride that is loaded in flush_dcache_page_asm to register  
> r1 is wrong.  Probably,
> the do_alias macro is wrong for PA 1.1.  This is hunk of code that  
> should be executed
> when a fdc non access fault occurs.
>
> nadtlb_check_alias_11:
>        do_alias        spc,t0,t1,va,pte,prot,nadtlb_emulate
>
>        idtlba          pte,(va)
>        idtlbp          prot,(va)
>
>        rfir
>        nop
>
> The TLB insert instructions on PA 1.1 have a different format than  
> on PA 2.0.  I'm not sure
> how this would corrupt r1.
>
> On the other hand, I had asked Vincent to put a "b,n ." instruction  
> just before the fdc loop,
> boot, hit the TOC button, and capture the setup registers for the  
> flush operation.  It's possible
> the stride variable has been clobbered.
>
> Dave
>
> --
> John David Anglin	dave.anglin@bell.net
>
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux- 
> parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

--
John David Anglin	dave.anglin@bell.net



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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On Tue, 2012-05-15 at 00:11 +0200, Helge Deller wrote:
> On 05/14/2012 03:10 AM, John David Anglin wrote:
> > I had a successful bot of 3.4.0-rc7+ this evening.
> >
> > I updated my running kernel patch to 3.4.  The futex patch is removed 
> > and Srivatsa S. Bhat's
> > patch added.
> 
> Ok, I applied your patch now.
> I used latest binutils and (as suggested by Dave) gcc-4.6 branch.
> I built Kernel 3.4.0-rc7 as 32bit-binary for my c3000, b160L and 715/64.
> 
> The c3000 booted nicely into userspace.
> 
> The B160L and the 715/64 (both 32bit-only PA1.X machines) crashed with 
> the following trace.
> All logs attached.
> 
> Any ideas?

Yes, I'm fairly certain there's a non-PA 1.0 instruction in the TLB
insertion code path.  The reason I didn't see it is that all the systems
I boot 32 bit kernels on have PA2.0 processors, so even in 32 bit mode,
they won't trip over an illegal 1.0 instruction.  The backtrace is bogus
because the actual problem is in the interruption after all of the trace
information is saved.  I'll see if I can get the system to trigger a
HPMC or TOC to get the actual location of the problem in the
interruption path.

I've finally got my systems, so just unpacking and setting them up now.

James


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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On Mon, 2012-05-14 at 18:38 -0400, John David Anglin wrote:
> On 14-May-12, at 6:11 PM, Helge Deller wrote:
> 
> > The B160L and the 715/64 (both 32bit-only PA1.X machines) crashed  
> > with the following trace.
> > All logs attached.
> >
> > Any ideas?
> 
> This is exactly the same failure as reported by Vincent.
> 
> The most likely problem is the PA 1.1 tmpalias support in entry.S is  
> broken.  For example,
> the cache stride that is loaded in flush_dcache_page_asm to register  
> r1 is wrong.  Probably,
> the do_alias macro is wrong for PA 1.1.  This is hunk of code that  
> should be executed
> when a fdc non access fault occurs.
> 
> nadtlb_check_alias_11:
>          do_alias        spc,t0,t1,va,pte,prot,nadtlb_emulate
> 
>          idtlba          pte,(va)
>          idtlbp          prot,(va)
> 
>          rfir
>          nop
> 
> The TLB insert instructions on PA 1.1 have a different format than on  
> PA 2.0.  I'm not sure
> how this would corrupt r1.
> 
> On the other hand, I had asked Vincent to put a "b,n ." instruction  
> just before the fdc loop,
> boot, hit the TOC button, and capture the setup registers for the  
> flush operation.  It's possible
> the stride variable has been clobbered.

Actually, I don't think it's that.  I built a PA 1.1 only kernel and
booted it successfully on the C360.  That exercises all the _11 paths,
so I don't think there's a code fault.  I do think there's a non PA1.1
instruction in there somewhere that the C360 wouldn't notice.

James


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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On Tue, 2012-05-15 at 09:09 +0100, James Bottomley wrote:
> On Mon, 2012-05-14 at 18:38 -0400, John David Anglin wrote:
> > On 14-May-12, at 6:11 PM, Helge Deller wrote:
> > 
> > > The B160L and the 715/64 (both 32bit-only PA1.X machines) crashed  
> > > with the following trace.
> > > All logs attached.
> > >
> > > Any ideas?
> > 
> > This is exactly the same failure as reported by Vincent.
> > 
> > The most likely problem is the PA 1.1 tmpalias support in entry.S is  
> > broken.  For example,
> > the cache stride that is loaded in flush_dcache_page_asm to register  
> > r1 is wrong.  Probably,
> > the do_alias macro is wrong for PA 1.1.  This is hunk of code that  
> > should be executed
> > when a fdc non access fault occurs.
> > 
> > nadtlb_check_alias_11:
> >          do_alias        spc,t0,t1,va,pte,prot,nadtlb_emulate
> > 
> >          idtlba          pte,(va)
> >          idtlbp          prot,(va)
> > 
> >          rfir
> >          nop
> > 
> > The TLB insert instructions on PA 1.1 have a different format than on  
> > PA 2.0.  I'm not sure
> > how this would corrupt r1.
> > 
> > On the other hand, I had asked Vincent to put a "b,n ." instruction  
> > just before the fdc loop,
> > boot, hit the TOC button, and capture the setup registers for the  
> > flush operation.  It's possible
> > the stride variable has been clobbered.
> 
> Actually, I don't think it's that.  I built a PA 1.1 only kernel and
> booted it successfully on the C360.  That exercises all the _11 paths,
> so I don't think there's a code fault.  I do think there's a non PA1.1
> instruction in there somewhere that the C360 wouldn't notice.

OK, I think this is the problem.  We have a depd instruction in do_alias
which is now in the _11 fault paths.

This should be the fix, if someone wants to test it before I can get
around to building it.

James

---

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 6f05944..5350342 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -581,7 +581,11 @@
 	 */
 	cmpiclr,=	0x01,\tmp,%r0
 	ldi		(_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
+#ifdef CONFIG_64BIT
 	depd,z		\prot,8,7,\prot
+#else
+	depw,z		\prot,8,7,\prot
+#endif
 	/*
 	 * OK, it is in the temp alias region, check whether "from" or "to".
 	 * Check "subtle" note in pacache.S re: r23/r26.


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On Sun, May 13, 2012 at 5:42 PM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
>
> I successfully booted 3.4-rc7 with this change on rp3440 (4 cpu smp).=
 =A0My
> build also
> included cache and other fixes that are being discussed on the parisc=
 list.

Can somebody send the final patches with proper subject lines etc,
instead of hiding them in unrelated threads? I hate picking up patches
that I don't personally know from the middle of some random thread.

                      Linus
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On 5/15/2012 5:13 AM, James Bottomley wrote:
> On Tue, 2012-05-15 at 09:09 +0100, James Bottomley wrote:
>> On Mon, 2012-05-14 at 18:38 -0400, John David Anglin wrote:
>>> On 14-May-12, at 6:11 PM, Helge Deller wrote:
>>>
>>>> The B160L and the 715/64 (both 32bit-only PA1.X machines) crashed
>>>> with the following trace.
>>>> All logs attached.
>>>>
>>>> Any ideas?
>>> This is exactly the same failure as reported by Vincent.
>>>
>>> The most likely problem is the PA 1.1 tmpalias support in entry.S is
>>> broken.  For example,
>>> the cache stride that is loaded in flush_dcache_page_asm to register
>>> r1 is wrong.  Probably,
>>> the do_alias macro is wrong for PA 1.1.  This is hunk of code that
>>> should be executed
>>> when a fdc non access fault occurs.
>>>
>>> nadtlb_check_alias_11:
>>>           do_alias        spc,t0,t1,va,pte,prot,nadtlb_emulate
>>>
>>>           idtlba          pte,(va)
>>>           idtlbp          prot,(va)
>>>
>>>           rfir
>>>           nop
>>>
>>> The TLB insert instructions on PA 1.1 have a different format than on
>>> PA 2.0.  I'm not sure
>>> how this would corrupt r1.
>>>
>>> On the other hand, I had asked Vincent to put a "b,n ." instruction
>>> just before the fdc loop,
>>> boot, hit the TOC button, and capture the setup registers for the
>>> flush operation.  It's possible
>>> the stride variable has been clobbered.
>> Actually, I don't think it's that.  I built a PA 1.1 only kernel and
>> booted it successfully on the C360.  That exercises all the _11 paths,
>> so I don't think there's a code fault.  I do think there's a non PA1.1
>> instruction in there somewhere that the C360 wouldn't notice.
> OK, I think this is the problem.  We have a depd instruction in do_alias
> which is now in the _11 fault paths.
>
> This should be the fix, if someone wants to test it before I can get
> around to building it.
>
> James
>
> ---
>
> diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
> index 6f05944..5350342 100644
> --- a/arch/parisc/kernel/entry.S
> +++ b/arch/parisc/kernel/entry.S
> @@ -581,7 +581,11 @@
>   	 */
>   	cmpiclr,=	0x01,\tmp,%r0
>   	ldi		(_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
> +#ifdef CONFIG_64BIT
>   	depd,z		\prot,8,7,\prot
> +#else
> +	depw,z		\prot,8,7,\prot
> +#endif
>   	/*
>   	 * OK, it is in the temp alias region, check whether "from" or "to".
>   	 * Check "subtle" note in pacache.S re: r23/r26.
Better check that this fix doesn't break 32-bit PA 2.0 as the seven bit 
are now being deposited
in a different place.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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Cc: John David Anglin <dave.anglin@bell.net>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@kernel.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
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On 05/15/2012 10:54 PM, Linus Torvalds wrote:

> On Sun, May 13, 2012 at 5:42 PM, John David Anglin <dave.anglin@bell.net> wrote:
>>
>> I successfully booted 3.4-rc7 with this change on rp3440 (4 cpu smp).  My
>> build also
>> included cache and other fixes that are being discussed on the parisc list.
> 
> Can somebody send the final patches with proper subject lines etc,
> instead of hiding them in unrelated threads? I hate picking up patches
> that I don't personally know from the middle of some random thread.
> 


Okay, here they are:

This is for PA-RISC:

---
From: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Subject: [PATCH] parisc/CPU hotplug: Add missing call to notify_cpu_starting()

The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-and-Tested-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-and-Tested-by: Tobias Ulmer <tobiasu@tmux.org>
Tested-by: John David Anglin <dave.anglin@bell.net>
---

 arch/parisc/kernel/smp.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 0bb1d63..4dc7b79 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -31,6 +31,7 @@
 #include <linux/delay.h>
 #include <linux/bitops.h>
 #include <linux/ftrace.h>
+#include <linux/cpu.h>
 
 #include <linux/atomic.h>
 #include <asm/current.h>
@@ -295,8 +296,13 @@ smp_cpu_init(int cpunum)
 
 		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
 		machine_halt();
-	}  
+	}
+
+	notify_cpu_starting(cpunum);
+
+	ipi_call_lock();
 	set_cpu_online(cpunum, true);
+	ipi_call_unlock();
 
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);


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On 05/15/2012 11:59 PM, Srivatsa S. Bhat wrote:

> On 05/15/2012 10:54 PM, Linus Torvalds wrote:
> 
>> On Sun, May 13, 2012 at 5:42 PM, John David Anglin <dave.anglin@bell.net> wrote:
>>>
>>> I successfully booted 3.4-rc7 with this change on rp3440 (4 cpu smp).  My
>>> build also
>>> included cache and other fixes that are being discussed on the parisc list.
>>
>> Can somebody send the final patches with proper subject lines etc,
>> instead of hiding them in unrelated threads? I hate picking up patches
>> that I don't personally know from the middle of some random thread.
>>
> 
> 
> Okay, here they are:
> 


This one is for mn10300:

---
From: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Subject: [PATCH] mn10300/CPU hotplug: Add missing call to notify_cpu_starting()

The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
---

 arch/mn10300/kernel/smp.c |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
index 910dddf..9cd69ad 100644
--- a/arch/mn10300/kernel/smp.c
+++ b/arch/mn10300/kernel/smp.c
@@ -24,6 +24,7 @@
 #include <linux/sched.h>
 #include <linux/profile.h>
 #include <linux/smp.h>
+#include <linux/cpu.h>
 #include <asm/tlbflush.h>
 #include <asm/bitops.h>
 #include <asm/processor.h>
@@ -38,7 +39,6 @@
 #include "internal.h"
 
 #ifdef CONFIG_HOTPLUG_CPU
-#include <linux/cpu.h>
 #include <asm/cacheflush.h>
 
 static unsigned long sleep_mode[NR_CPUS];
@@ -874,10 +874,13 @@ static void __init smp_online(void)
 
 	cpu = smp_processor_id();
 
-	local_irq_enable();
+	notify_cpu_starting(cpu);
 
+	ipi_call_lock();
 	set_cpu_online(cpu, true);
-	smp_wmb();
+	ipi_call_unlock();
+
+	local_irq_enable();
 }
 
 /**



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	eike-kernel@sf-tec.de, linux-parisc@vger.kernel.org,
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To: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
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On Tue, May 15, 2012 at 11:29 AM, Srivatsa S. Bhat
<srivatsa.bhat@linux.vnet.ibm.com> wrote:
>>
>> Can somebody send the final patches with proper subject lines etc,
>> instead of hiding them in unrelated threads? I hate picking up patches
>> that I don't personally know from the middle of some random thread.
>>
>
>
> Okay, here they are:

What part of "with proper subject lines" didn't you get?

Look at the subject line. Look at how you put the patch in the middle
of an old thread that was about something totally different.

This was *exactly* what I complained about. I don't want patches like this.

                  Linus
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Cc: John David Anglin <dave.anglin@bell.net>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@kernel.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On 05/16/2012 12:12 AM, Linus Torvalds wrote:

> On Tue, May 15, 2012 at 11:29 AM, Srivatsa S. Bhat
> <srivatsa.bhat@linux.vnet.ibm.com> wrote:
>>>
>>> Can somebody send the final patches with proper subject lines etc,
>>> instead of hiding them in unrelated threads? I hate picking up patches
>>> that I don't personally know from the middle of some random thread.
>>>
>>
>>
>> Okay, here they are:
> 
> What part of "with proper subject lines" didn't you get?
> 
> Look at the subject line. Look at how you put the patch in the middle
> of an old thread that was about something totally different.
> 
> This was *exactly* what I complained about. I don't want patches like this.
> 


Oops! Sorry about that! I will resend in a separate thread with appropriate
subject line.

Regards,
Srivatsa S. Bhat

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From: Helge Deller <deller@gmx.de>
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
	Vincent <vincent.stehle@laposte.net>,
	Rolf Eike Beer <eike-kernel@sf-tec.de>,
	linux-parisc@vger.kernel.org
To: John David Anglin <dave.anglin@bell.net>
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On 05/15/2012 08:23 PM, John David Anglin wrote:
> On 5/15/2012 5:13 AM, James Bottomley wrote:
>> On Tue, 2012-05-15 at 09:09 +0100, James Bottomley wrote:
>>> On Mon, 2012-05-14 at 18:38 -0400, John David Anglin wrote:
>>>> On 14-May-12, at 6:11 PM, Helge Deller wrote:
>>>>
>>>>> The B160L and the 715/64 (both 32bit-only PA1.X machines) crashed
>>>>> with the following trace.
>>>>> All logs attached.
>>>>>
>>>>> Any ideas?
>>>> This is exactly the same failure as reported by Vincent.
>>>>
>>>> The most likely problem is the PA 1.1 tmpalias support in entry.S is
>>>> broken.  For example,
>>>> the cache stride that is loaded in flush_dcache_page_asm to register
>>>> r1 is wrong.  Probably,
>>>> the do_alias macro is wrong for PA 1.1.  This is hunk of code that
>>>> should be executed
>>>> when a fdc non access fault occurs.
>>>>
>>>> nadtlb_check_alias_11:
>>>>           do_alias        spc,t0,t1,va,pte,prot,nadtlb_emulate
>>>>
>>>>           idtlba          pte,(va)
>>>>           idtlbp          prot,(va)
>>>>
>>>>           rfir
>>>>           nop
>>>>
>>>> The TLB insert instructions on PA 1.1 have a different format than on
>>>> PA 2.0.  I'm not sure
>>>> how this would corrupt r1.
>>>>
>>>> On the other hand, I had asked Vincent to put a "b,n ." instruction
>>>> just before the fdc loop,
>>>> boot, hit the TOC button, and capture the setup registers for the
>>>> flush operation.  It's possible
>>>> the stride variable has been clobbered.
>>> Actually, I don't think it's that.  I built a PA 1.1 only kernel and
>>> booted it successfully on the C360.  That exercises all the _11 paths,
>>> so I don't think there's a code fault.  I do think there's a non PA1.1
>>> instruction in there somewhere that the C360 wouldn't notice.
>> OK, I think this is the problem.  We have a depd instruction in do_alias
>> which is now in the _11 fault paths.
>>
>> This should be the fix, if someone wants to test it before I can get
>> around to building it.
>>
>> James
>>
>> ---
>>
>> diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
>> index 6f05944..5350342 100644
>> --- a/arch/parisc/kernel/entry.S
>> +++ b/arch/parisc/kernel/entry.S
>> @@ -581,7 +581,11 @@
>>        */
>>       cmpiclr,=    0x01,\tmp,%r0
>>       ldi        (_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
>> +#ifdef CONFIG_64BIT
>>       depd,z        \prot,8,7,\prot
>> +#else
>> +    depw,z        \prot,8,7,\prot
>> +#endif
>>       /*
>>        * OK, it is in the temp alias region, check whether "from" or 
>> "to".
>>        * Check "subtle" note in pacache.S re: r23/r26.
> Better check that this fix doesn't break 32-bit PA 2.0 as the seven 
> bit are now being deposited
> in a different place.


James & Dave - good catches!

James patch now let my 715/64 boot, but still crashes on my B160L:

swapper (pid 1): Illegal instruction (code 8)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001110000100001111 Not tainted
r00-03  0004e10f 00000020 101198cc 17c245c0
r04-07  ffeff000 17ec05f8 007d4000 17e60260
r08-11  17c5100b fffff000 17e60310 00020000
r12-15  00000ffc 0000000b 00000000 ffeff000
r16-19  007d4000 10768020 10000000 17c22db8
r20-23  17c245c8 108fc000 00000001 00000020
r24-27  000007d4 0f2fffe0 0000fa80 106e2020
r28-31  0f2ff000 000074ee 17c24640 000072e6
sr00-03  00000000 00000001 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
  IIR: 078113e0    ISR: 00000000  IOR: 0f2ff000
  CPU:        0   CR30: 17c24000 CR31: f0102978
  ORIG_R28: 17ebbe40
  IAOQ[0]: flush_icache_page_asm+0x28/0x7c
  IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
  RP(r2): flush_cache_page+0x90/0xb0
Backtrace:


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From - Thu Nov 08 21:08:16 2018
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From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [RESEND PATCH 0/2] arch/CPU hotplug: Add missing CPU Hotplug bits to
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Unfortunately, some of the CPU Hotplug code has been duplicated in all of
the architectures. And in some cases, very poorly (some architectures left
out some of the important bits), to add to the woes.

Commit 5fbd036b552f633abb394a319f7c62a5c86a9cd7 (sched: Cleanup cpu_active
madness) introduced some changes that made the scheduler rely on the
CPU_STARTING notifier. And hence those architectures which forgot to
send out the CPU_STARTING notification will almost surely get into trouble.
(Xen is one example[1]).

The proper fix would be to pull out these bits into generic CPU Hotplug code.
But for now, fix this regression by adding the missing bits in the respective
architectures.

[1].https://lkml.org/lkml/2012/3/20/459
--
 Srivatsa S. Bhat (2):
      parisc/CPU hotplug: Add missing call to notify_cpu_starting()
      mn10300/CPU hotplug: Add missing call to notify_cpu_starting()


  arch/mn10300/kernel/smp.c |    9 ++++++---
 arch/parisc/kernel/smp.c  |    8 +++++++-
 2 files changed, 13 insertions(+), 4 deletions(-)



Thanks,
Srivatsa S. Bhat
IBM Linux Technology Center

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Subject: [RESEND PATCH 1/2] parisc/CPU hotplug: Add missing call to
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The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-and-Tested-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-and-Tested-by: Tobias Ulmer <tobiasu@tmux.org>
Tested-by: John David Anglin <dave.anglin@bell.net>
---

 arch/parisc/kernel/smp.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 0bb1d63..4dc7b79 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -31,6 +31,7 @@
 #include <linux/delay.h>
 #include <linux/bitops.h>
 #include <linux/ftrace.h>
+#include <linux/cpu.h>
 
 #include <linux/atomic.h>
 #include <asm/current.h>
@@ -295,8 +296,13 @@ smp_cpu_init(int cpunum)
 
 		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
 		machine_halt();
-	}  
+	}
+
+	notify_cpu_starting(cpunum);
+
+	ipi_call_lock();
 	set_cpu_online(cpunum, true);
+	ipi_call_unlock();
 
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);

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Subject: [RESEND PATCH 2/2] mn10300/CPU hotplug: Add missing call to
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The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
---

 arch/mn10300/kernel/smp.c |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
index 910dddf..9cd69ad 100644
--- a/arch/mn10300/kernel/smp.c
+++ b/arch/mn10300/kernel/smp.c
@@ -24,6 +24,7 @@
 #include <linux/sched.h>
 #include <linux/profile.h>
 #include <linux/smp.h>
+#include <linux/cpu.h>
 #include <asm/tlbflush.h>
 #include <asm/bitops.h>
 #include <asm/processor.h>
@@ -38,7 +39,6 @@
 #include "internal.h"
 
 #ifdef CONFIG_HOTPLUG_CPU
-#include <linux/cpu.h>
 #include <asm/cacheflush.h>
 
 static unsigned long sleep_mode[NR_CPUS];
@@ -874,10 +874,13 @@ static void __init smp_online(void)
 
 	cpu = smp_processor_id();
 
-	local_irq_enable();
+	notify_cpu_starting(cpu);
 
+	ipi_call_lock();
 	set_cpu_online(cpu, true);
-	smp_wmb();
+	ipi_call_unlock();
+
+	local_irq_enable();
 }
 
 /**

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On Wed, 2012-05-16 at 00:15 +0530, Srivatsa S. Bhat wrote:
> On 05/16/2012 12:12 AM, Linus Torvalds wrote:
> 
> > On Tue, May 15, 2012 at 11:29 AM, Srivatsa S. Bhat
> > <srivatsa.bhat@linux.vnet.ibm.com> wrote:
> >>>
> >>> Can somebody send the final patches with proper subject lines etc,
> >>> instead of hiding them in unrelated threads? I hate picking up patches
> >>> that I don't personally know from the middle of some random thread.
> >>>
> >>
> >>
> >> Okay, here they are:
> > 
> > What part of "with proper subject lines" didn't you get?
> > 
> > Look at the subject line. Look at how you put the patch in the middle
> > of an old thread that was about something totally different.
> > 
> > This was *exactly* what I complained about. I don't want patches like this.
> > 
> 
> 
> Oops! Sorry about that! I will resend in a separate thread with appropriate
> subject line.

If it helps, I've already imported it to the parisc fixes tree with a
corrected subject line.  We still have this and the PA1.1 fix, when I
can confirm it's actually the complete fix for the boot panics.

James


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On Tue, 2012-05-15 at 14:23 -0400, John David Anglin wrote:
> On 5/15/2012 5:13 AM, James Bottomley wrote:
> > On Tue, 2012-05-15 at 09:09 +0100, James Bottomley wrote:
> >> On Mon, 2012-05-14 at 18:38 -0400, John David Anglin wrote:
> >>> On 14-May-12, at 6:11 PM, Helge Deller wrote:
> >>>
> >>>> The B160L and the 715/64 (both 32bit-only PA1.X machines) crashed
> >>>> with the following trace.
> >>>> All logs attached.
> >>>>
> >>>> Any ideas?
> >>> This is exactly the same failure as reported by Vincent.
> >>>
> >>> The most likely problem is the PA 1.1 tmpalias support in entry.S is
> >>> broken.  For example,
> >>> the cache stride that is loaded in flush_dcache_page_asm to register
> >>> r1 is wrong.  Probably,
> >>> the do_alias macro is wrong for PA 1.1.  This is hunk of code that
> >>> should be executed
> >>> when a fdc non access fault occurs.
> >>>
> >>> nadtlb_check_alias_11:
> >>>           do_alias        spc,t0,t1,va,pte,prot,nadtlb_emulate
> >>>
> >>>           idtlba          pte,(va)
> >>>           idtlbp          prot,(va)
> >>>
> >>>           rfir
> >>>           nop
> >>>
> >>> The TLB insert instructions on PA 1.1 have a different format than on
> >>> PA 2.0.  I'm not sure
> >>> how this would corrupt r1.
> >>>
> >>> On the other hand, I had asked Vincent to put a "b,n ." instruction
> >>> just before the fdc loop,
> >>> boot, hit the TOC button, and capture the setup registers for the
> >>> flush operation.  It's possible
> >>> the stride variable has been clobbered.
> >> Actually, I don't think it's that.  I built a PA 1.1 only kernel and
> >> booted it successfully on the C360.  That exercises all the _11 paths,
> >> so I don't think there's a code fault.  I do think there's a non PA1.1
> >> instruction in there somewhere that the C360 wouldn't notice.
> > OK, I think this is the problem.  We have a depd instruction in do_alias
> > which is now in the _11 fault paths.
> >
> > This should be the fix, if someone wants to test it before I can get
> > around to building it.
> >
> > James
> >
> > ---
> >
> > diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
> > index 6f05944..5350342 100644
> > --- a/arch/parisc/kernel/entry.S
> > +++ b/arch/parisc/kernel/entry.S
> > @@ -581,7 +581,11 @@
> >   	 */
> >   	cmpiclr,=	0x01,\tmp,%r0
> >   	ldi		(_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
> > +#ifdef CONFIG_64BIT
> >   	depd,z		\prot,8,7,\prot
> > +#else
> > +	depw,z		\prot,8,7,\prot
> > +#endif
> >   	/*
> >   	 * OK, it is in the temp alias region, check whether "from" or "to".
> >   	 * Check "subtle" note in pacache.S re: r23/r26.
> Better check that this fix doesn't break 32-bit PA 2.0 as the seven bit 
> are now being deposited
> in a different place.

It doesn't.  It's the same on both 32 and 64 bit: I compared with the
original code.

James


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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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James patch now let my 715/64 boot, but still crashes on my B160L:
>
> swapper (pid 1): Illegal instruction (code 8)
>
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001110000100001111 Not tainted
> r00-03  0004e10f 00000020 101198cc 17c245c0
> r04-07  ffeff000 17ec05f8 007d4000 17e60260
> r08-11  17c5100b fffff000 17e60310 00020000
> r12-15  00000ffc 0000000b 00000000 ffeff000
> r16-19  007d4000 10768020 10000000 17c22db8
> r20-23  17c245c8 108fc000 00000001 00000020
> r24-27  000007d4 0f2fffe0 0000fa80 106e2020
> r28-31  0f2ff000 000074ee 17c24640 000072e6
> sr00-03  00000000 00000001 00000000 00000000
> sr04-07  00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
>  IIR: 078113e0    ISR: 00000000  IOR: 0f2ff000
>  CPU:        0   CR30: 17c24000 CR31: f0102978
>  ORIG_R28: 17ebbe40
>  IAOQ[0]: flush_icache_page_asm+0x28/0x7c
>  IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
>  RP(r2): flush_cache_page+0x90/0xb0
> Backtrace:
This one is in a different place: flush_icache_page_asm.  It has
crashed on the first fic,m instruction.  Again it is an illegal instruction.

Dave

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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On 5/15/2012 3:24 PM, John David Anglin wrote:
> James patch now let my 715/64 boot, but still crashes on my B160L:
>>
>> swapper (pid 1): Illegal instruction (code 8)
>>
>>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>> PSW: 00000000000001001110000100001111 Not tainted
>> r00-03  0004e10f 00000020 101198cc 17c245c0
>> r04-07  ffeff000 17ec05f8 007d4000 17e60260
>> r08-11  17c5100b fffff000 17e60310 00020000
>> r12-15  00000ffc 0000000b 00000000 ffeff000
>> r16-19  007d4000 10768020 10000000 17c22db8
>> r20-23  17c245c8 108fc000 00000001 00000020
>> r24-27  000007d4 0f2fffe0 0000fa80 106e2020
>> r28-31  0f2ff000 000074ee 17c24640 000072e6
>> sr00-03  00000000 00000001 00000000 00000000
>> sr04-07  00000000 00000000 00000000 00000000
>>
>> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
>>  IIR: 078113e0    ISR: 00000000  IOR: 0f2ff000
>>  CPU:        0   CR30: 17c24000 CR31: f0102978
>>  ORIG_R28: 17ebbe40
>>  IAOQ[0]: flush_icache_page_asm+0x28/0x7c
>>  IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
>>  RP(r2): flush_cache_page+0x90/0xb0
>> Backtrace:
> This one is in a different place: flush_icache_page_asm.  It has
> crashed on the first fic,m instruction.  Again it is an illegal 
> instruction.
>
Looking at the PA 1.1 arch, I see that the space register needs to be
explicitly specified on PA 1.1 (format 26).  The implicit (format 24)
instruction was added in PA 2.0.

Could you try adding %sr0 to the fic instructions?

Thanks,
Dave



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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On Tue, 2012-05-15 at 20:50 +0200, Helge Deller wrote:
> On 05/15/2012 08:23 PM, John David Anglin wrote:
> > On 5/15/2012 5:13 AM, James Bottomley wrote:
> >> On Tue, 2012-05-15 at 09:09 +0100, James Bottomley wrote:
> >>> On Mon, 2012-05-14 at 18:38 -0400, John David Anglin wrote:
> >>>> On 14-May-12, at 6:11 PM, Helge Deller wrote:
> >>>>
> >>>>> The B160L and the 715/64 (both 32bit-only PA1.X machines) crashed
> >>>>> with the following trace.
> >>>>> All logs attached.
> >>>>>
> >>>>> Any ideas?
> >>>> This is exactly the same failure as reported by Vincent.
> >>>>
> >>>> The most likely problem is the PA 1.1 tmpalias support in entry.S is
> >>>> broken.  For example,
> >>>> the cache stride that is loaded in flush_dcache_page_asm to register
> >>>> r1 is wrong.  Probably,
> >>>> the do_alias macro is wrong for PA 1.1.  This is hunk of code that
> >>>> should be executed
> >>>> when a fdc non access fault occurs.
> >>>>
> >>>> nadtlb_check_alias_11:
> >>>>           do_alias        spc,t0,t1,va,pte,prot,nadtlb_emulate
> >>>>
> >>>>           idtlba          pte,(va)
> >>>>           idtlbp          prot,(va)
> >>>>
> >>>>           rfir
> >>>>           nop
> >>>>
> >>>> The TLB insert instructions on PA 1.1 have a different format than on
> >>>> PA 2.0.  I'm not sure
> >>>> how this would corrupt r1.
> >>>>
> >>>> On the other hand, I had asked Vincent to put a "b,n ." instruction
> >>>> just before the fdc loop,
> >>>> boot, hit the TOC button, and capture the setup registers for the
> >>>> flush operation.  It's possible
> >>>> the stride variable has been clobbered.
> >>> Actually, I don't think it's that.  I built a PA 1.1 only kernel and
> >>> booted it successfully on the C360.  That exercises all the _11 paths,
> >>> so I don't think there's a code fault.  I do think there's a non PA1.1
> >>> instruction in there somewhere that the C360 wouldn't notice.
> >> OK, I think this is the problem.  We have a depd instruction in do_alias
> >> which is now in the _11 fault paths.
> >>
> >> This should be the fix, if someone wants to test it before I can get
> >> around to building it.
> >>
> >> James
> >>
> >> ---
> >>
> >> diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
> >> index 6f05944..5350342 100644
> >> --- a/arch/parisc/kernel/entry.S
> >> +++ b/arch/parisc/kernel/entry.S
> >> @@ -581,7 +581,11 @@
> >>        */
> >>       cmpiclr,=    0x01,\tmp,%r0
> >>       ldi        (_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
> >> +#ifdef CONFIG_64BIT
> >>       depd,z        \prot,8,7,\prot
> >> +#else
> >> +    depw,z        \prot,8,7,\prot
> >> +#endif
> >>       /*
> >>        * OK, it is in the temp alias region, check whether "from" or 
> >> "to".
> >>        * Check "subtle" note in pacache.S re: r23/r26.
> > Better check that this fix doesn't break 32-bit PA 2.0 as the seven 
> > bit are now being deposited
> > in a different place.
> 
> 
> James & Dave - good catches!
> 
> James patch now let my 715/64 boot, but still crashes on my B160L:
> 
> swapper (pid 1): Illegal instruction (code 8)
> 
>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001110000100001111 Not tainted
> r00-03  0004e10f 00000020 101198cc 17c245c0
> r04-07  ffeff000 17ec05f8 007d4000 17e60260
> r08-11  17c5100b fffff000 17e60310 00020000
> r12-15  00000ffc 0000000b 00000000 ffeff000
> r16-19  007d4000 10768020 10000000 17c22db8
> r20-23  17c245c8 108fc000 00000001 00000020
> r24-27  000007d4 0f2fffe0 0000fa80 106e2020
> r28-31  0f2ff000 000074ee 17c24640 000072e6
> sr00-03  00000000 00000001 00000000 00000000
> sr04-07  00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
>   IIR: 078113e0    ISR: 00000000  IOR: 0f2ff000
>   CPU:        0   CR30: 17c24000 CR31: f0102978
>   ORIG_R28: 17ebbe40
>   IAOQ[0]: flush_icache_page_asm+0x28/0x7c
>   IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
>   RP(r2): flush_cache_page+0x90/0xb0
> Backtrace:

OK, so I assume one (the 715) has a shared D and I TLB and the b160
doesn't?

James


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
Date: Tue, 15 May 2012 21:59:45 +0200
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On 05/15/2012 09:46 PM, John David Anglin wrote:
> On 5/15/2012 3:24 PM, John David Anglin wrote:
>> James patch now let my 715/64 boot, but still crashes on my B160L:
>>>
>>> swapper (pid 1): Illegal instruction (code 8)
>>>
>>>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>> PSW: 00000000000001001110000100001111 Not tainted
>>> r00-03  0004e10f 00000020 101198cc 17c245c0
>>> r04-07  ffeff000 17ec05f8 007d4000 17e60260
>>> r08-11  17c5100b fffff000 17e60310 00020000
>>> r12-15  00000ffc 0000000b 00000000 ffeff000
>>> r16-19  007d4000 10768020 10000000 17c22db8
>>> r20-23  17c245c8 108fc000 00000001 00000020
>>> r24-27  000007d4 0f2fffe0 0000fa80 106e2020
>>> r28-31  0f2ff000 000074ee 17c24640 000072e6
>>> sr00-03  00000000 00000001 00000000 00000000
>>> sr04-07  00000000 00000000 00000000 00000000
>>>
>>> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
>>>  IIR: 078113e0    ISR: 00000000  IOR: 0f2ff000
>>>  CPU:        0   CR30: 17c24000 CR31: f0102978
>>>  ORIG_R28: 17ebbe40
>>>  IAOQ[0]: flush_icache_page_asm+0x28/0x7c
>>>  IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
>>>  RP(r2): flush_cache_page+0x90/0xb0
>>> Backtrace:
>> This one is in a different place: flush_icache_page_asm.  It has
>> crashed on the first fic,m instruction.  Again it is an illegal 
>> instruction.
>>
> Looking at the PA 1.1 arch, I see that the space register needs to be
> explicitly specified on PA 1.1 (format 26).  The implicit (format 24)
> instruction was added in PA 2.0.
>
> Could you try adding %sr0 to the fic instructions?
no illegal instruction any longer, but "bad address"....
I changed all to " fic,m           %r1(%sr0,%r28)"



Freeing unused kernel memory: 320k freed
Backtrace:
  [<101198cc>] flush_cache_page+0x90/0xb0
  [<101b9b84>] do_wp_page+0x1e0/0x7b4
  [<101bb970>] handle_pte_fault+0x284/0x7c0
  [<101bbf74>] handle_mm_fault+0xc8/0x120
  [<10118cc8>] do_page_fault+0x228/0x2d0
  [<1011a838>] handle_interruption+0x1d4/0x6c4
  [<10105078>] intr_check_sig+0x0/0x34


Bad Address (null pointer deref?): Code=17 regs=17c244c0 (Addr=0f17d000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111100100001111 Not tainted
r00-03  0004f90f 00000020 101198cc 17c24440
r04-07  4017d4c4 17ebf498 007cd000 007cdb05
r08-11  17ebee40 17ec55f4 107eb7c0 10768020
r12-15  000007cd 17ebee74 000005f4 00050000
r16-19  17c23098 17c24140 0011849c 17c22db8
r20-23  0000004b 108fc000 00000000 00000000
r24-27  000007cd 0f17dfe0 0000f9a0 106e2020
r28-31  0f17d000 17c23098 17c244c0 6fffffff
sr00-03  00000800 00000001 00000000 00000001
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
  IIR: 078102a0    ISR: 00000800  IOR: 0f17d000
  CPU:        0   CR30: 17c24000 CR31: f0102978
  ORIG_R28: 17c51000
  IAOQ[0]: flush_icache_page_asm+0x28/0x7c
  IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
  RP(r2): flush_cache_page+0x90/0xb0
Backtrace:
  [<101198cc>] flush_cache_page+0x90/0xb0
  [<101b9b84>] do_wp_page+0x1e0/0x7b4
  [<101bb970>] handle_pte_fault+0x284/0x7c0
  [<101bbf74>] handle_mm_fault+0xc8/0x120
  [<10118cc8>] do_page_fault+0x228/0x2d0
  [<1011a838>] handle_interruption+0x1d4/0x6c4
  [<10105078>] intr_check_sig+0x0/0x34


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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
Date: Tue, 15 May 2012 16:05:47 -0400
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On 5/15/2012 3:59 PM, Helge Deller wrote:
> On 05/15/2012 09:46 PM, John David Anglin wrote:
>> On 5/15/2012 3:24 PM, John David Anglin wrote:
>>> James patch now let my 715/64 boot, but still crashes on my B160L:
>>>>
>>>> swapper (pid 1): Illegal instruction (code 8)
>>>>
>>>>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>>> PSW: 00000000000001001110000100001111 Not tainted
>>>> r00-03  0004e10f 00000020 101198cc 17c245c0
>>>> r04-07  ffeff000 17ec05f8 007d4000 17e60260
>>>> r08-11  17c5100b fffff000 17e60310 00020000
>>>> r12-15  00000ffc 0000000b 00000000 ffeff000
>>>> r16-19  007d4000 10768020 10000000 17c22db8
>>>> r20-23  17c245c8 108fc000 00000001 00000020
>>>> r24-27  000007d4 0f2fffe0 0000fa80 106e2020
>>>> r28-31  0f2ff000 000074ee 17c24640 000072e6
>>>> sr00-03  00000000 00000001 00000000 00000000
>>>> sr04-07  00000000 00000000 00000000 00000000
>>>>
>>>> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
>>>>  IIR: 078113e0    ISR: 00000000  IOR: 0f2ff000
>>>>  CPU:        0   CR30: 17c24000 CR31: f0102978
>>>>  ORIG_R28: 17ebbe40
>>>>  IAOQ[0]: flush_icache_page_asm+0x28/0x7c
>>>>  IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
>>>>  RP(r2): flush_cache_page+0x90/0xb0
>>>> Backtrace:
>>> This one is in a different place: flush_icache_page_asm.  It has
>>> crashed on the first fic,m instruction.  Again it is an illegal 
>>> instruction.
>>>
>> Looking at the PA 1.1 arch, I see that the space register needs to be
>> explicitly specified on PA 1.1 (format 26).  The implicit (format 24)
>> instruction was added in PA 2.0.
>>
>> Could you try adding %sr0 to the fic instructions?
> no illegal instruction any longer, but "bad address"....
> I changed all to " fic,m           %r1(%sr0,%r28)"
>
>
>
> Freeing unused kernel memory: 320k freed
> Backtrace:
>  [<101198cc>] flush_cache_page+0x90/0xb0
>  [<101b9b84>] do_wp_page+0x1e0/0x7b4
>  [<101bb970>] handle_pte_fault+0x284/0x7c0
>  [<101bbf74>] handle_mm_fault+0xc8/0x120
>  [<10118cc8>] do_page_fault+0x228/0x2d0
>  [<1011a838>] handle_interruption+0x1d4/0x6c4
>  [<10105078>] intr_check_sig+0x0/0x34
>
>
> Bad Address (null pointer deref?): Code=17 regs=17c244c0 (Addr=0f17d000)
>
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111100100001111 Not tainted
> r00-03  0004f90f 00000020 101198cc 17c24440
> r04-07  4017d4c4 17ebf498 007cd000 007cdb05
> r08-11  17ebee40 17ec55f4 107eb7c0 10768020
> r12-15  000007cd 17ebee74 000005f4 00050000
> r16-19  17c23098 17c24140 0011849c 17c22db8
> r20-23  0000004b 108fc000 00000000 00000000
> r24-27  000007cd 0f17dfe0 0000f9a0 106e2020
> r28-31  0f17d000 17c23098 17c244c0 6fffffff
> sr00-03  00000800 00000001 00000000 00000001
> sr04-07  00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
>  IIR: 078102a0    ISR: 00000800  IOR: 0f17d000
>  CPU:        0   CR30: 17c24000 CR31: f0102978
>  ORIG_R28: 17c51000
>  IAOQ[0]: flush_icache_page_asm+0x28/0x7c
>  IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
>  RP(r2): flush_cache_page+0x90/0xb0
> Backtrace:
>  [<101198cc>] flush_cache_page+0x90/0xb0
>  [<101b9b84>] do_wp_page+0x1e0/0x7b4
>  [<101bb970>] handle_pte_fault+0x284/0x7c0
>  [<101bbf74>] handle_mm_fault+0xc8/0x120
>  [<10118cc8>] do_page_fault+0x228/0x2d0
>  [<1011a838>] handle_interruption+0x1d4/0x6c4
>  [<10105078>] intr_check_sig+0x0/0x34
>
>
>
>
Try %sr2 or %sr4.  %sr0 isn't zero.

Dave

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From - Thu Nov 08 21:08:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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On 05/15/2012 10:05 PM, John David Anglin wrote:
> On 5/15/2012 3:59 PM, Helge Deller wrote:
>> On 05/15/2012 09:46 PM, John David Anglin wrote:
>>> On 5/15/2012 3:24 PM, John David Anglin wrote:
>>>> James patch now let my 715/64 boot, but still crashes on my B160L:
>>>>>
>>>>> swapper (pid 1): Illegal instruction (code 8)
>>>>>
>>>>>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>>>> PSW: 00000000000001001110000100001111 Not tainted
>>>>> r00-03  0004e10f 00000020 101198cc 17c245c0
>>>>> r04-07  ffeff000 17ec05f8 007d4000 17e60260
>>>>> r08-11  17c5100b fffff000 17e60310 00020000
>>>>> r12-15  00000ffc 0000000b 00000000 ffeff000
>>>>> r16-19  007d4000 10768020 10000000 17c22db8
>>>>> r20-23  17c245c8 108fc000 00000001 00000020
>>>>> r24-27  000007d4 0f2fffe0 0000fa80 106e2020
>>>>> r28-31  0f2ff000 000074ee 17c24640 000072e6
>>>>> sr00-03  00000000 00000001 00000000 00000000
>>>>> sr04-07  00000000 00000000 00000000 00000000
>>>>>
>>>>> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
>>>>>  IIR: 078113e0    ISR: 00000000  IOR: 0f2ff000
>>>>>  CPU:        0   CR30: 17c24000 CR31: f0102978
>>>>>  ORIG_R28: 17ebbe40
>>>>>  IAOQ[0]: flush_icache_page_asm+0x28/0x7c
>>>>>  IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
>>>>>  RP(r2): flush_cache_page+0x90/0xb0
>>>>> Backtrace:
>>>> This one is in a different place: flush_icache_page_asm.  It has
>>>> crashed on the first fic,m instruction.  Again it is an illegal 
>>>> instruction.
>>>>
>>> Looking at the PA 1.1 arch, I see that the space register needs to be
>>> explicitly specified on PA 1.1 (format 26).  The implicit (format 24)
>>> instruction was added in PA 2.0.
>>>
>>> Could you try adding %sr0 to the fic instructions?
>> no illegal instruction any longer, but "bad address"....
>> I changed all to " fic,m           %r1(%sr0,%r28)"
>>
>>
>>
>> Freeing unused kernel memory: 320k freed
>> Backtrace:
>>  [<101198cc>] flush_cache_page+0x90/0xb0
>>  [<101b9b84>] do_wp_page+0x1e0/0x7b4
>>  [<101bb970>] handle_pte_fault+0x284/0x7c0
>>  [<101bbf74>] handle_mm_fault+0xc8/0x120
>>  [<10118cc8>] do_page_fault+0x228/0x2d0
>>  [<1011a838>] handle_interruption+0x1d4/0x6c4
>>  [<10105078>] intr_check_sig+0x0/0x34
>>
>>
>> Bad Address (null pointer deref?): Code=17 regs=17c244c0 (Addr=0f17d000)
>>
>>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>> PSW: 00000000000001001111100100001111 Not tainted
>> r00-03  0004f90f 00000020 101198cc 17c24440
>> r04-07  4017d4c4 17ebf498 007cd000 007cdb05
>> r08-11  17ebee40 17ec55f4 107eb7c0 10768020
>> r12-15  000007cd 17ebee74 000005f4 00050000
>> r16-19  17c23098 17c24140 0011849c 17c22db8
>> r20-23  0000004b 108fc000 00000000 00000000
>> r24-27  000007cd 0f17dfe0 0000f9a0 106e2020
>> r28-31  0f17d000 17c23098 17c244c0 6fffffff
>> sr00-03  00000800 00000001 00000000 00000001
>> sr04-07  00000000 00000000 00000000 00000000
>>
>> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
>>  IIR: 078102a0    ISR: 00000800  IOR: 0f17d000
>>  CPU:        0   CR30: 17c24000 CR31: f0102978
>>  ORIG_R28: 17c51000
>>  IAOQ[0]: flush_icache_page_asm+0x28/0x7c
>>  IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
>>  RP(r2): flush_cache_page+0x90/0xb0
>> Backtrace:
>>  [<101198cc>] flush_cache_page+0x90/0xb0
>>  [<101b9b84>] do_wp_page+0x1e0/0x7b4
>>  [<101bb970>] handle_pte_fault+0x284/0x7c0
>>  [<101bbf74>] handle_mm_fault+0xc8/0x120
>>  [<10118cc8>] do_page_fault+0x228/0x2d0
>>  [<1011a838>] handle_interruption+0x1d4/0x6c4
>>  [<10105078>] intr_check_sig+0x0/0x34
>>
>>
>>
>>
> Try %sr2 or %sr4.  %sr0 isn't zero.

Dave, great, you fixed it !
All my machines now boot the 32bit kernel.
%sr2 does not work since it becomes a value unequal to zero later in the 
boot process.
%sr4 did worked - it's actually used further down in pacache.S in 
flush_kernel_icache_page() as well...

I still have the problem that my B160L "hangs" during boot after 
starting crond - but I'm not sure if this is related to your patches 
since the other machines do work.
Maybe it's just some userspace trouble....

Will you send your patches to Linus as he requested in the other mail?

Helge
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On 5/15/2012 4:28 PM, Helge Deller wrote:
> Will you send your patches to Linus as he requested in the other mail?
You have the diff for the two PA 1.1 changes.  Suggest you send them.
I think these should go to stable as well as soon as it is verified that all
targets boot.

I think my cache-2 is more appropriate for linux-next.  There are a number
of subtle issues with it.  I am pleased that the users that have tried 
it have
been generally happy with it.

We need to debug why your B160L hangs.  Can you kill whatever hangs
from the console?  Sometimes the application is still in the foreground.

Dave

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On 5/15/2012 4:28 PM, Helge Deller wrote:
> %sr2 does not work since it becomes a value unequal to zero later in 
> the boot process.

I think my cache patch is broken sr2 isn't always 0.  The only code that 
plays with sr2
seems to be in lib/memcpy.c.

Dave

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On 05/15/2012 11:13 AM, James Bottomley wrote:
(..)
> OK, I think this is the problem.  We have a depd instruction in do_alias
> which is now in the _11 fault paths.
> 
> This should be the fix, if someone wants to test it before I can get
> around to building it.

Hi James,

This makes my hp712 boot now; congrats!

Works for me with v3.4-rc6 and v3.4-rc7, with the following "patches pile":

depd patch     (http://www.spinics.net/lists/linux-parisc/msg04169.html)
sections patch (http://www.spinics.net/lists/linux-parisc/msg04091.html)
cache patch    (http://www.spinics.net/lists/linux-parisc/msg04120.html)
v3.4-rc7

Thanks!

...I think I'll upload a git, somewhere, for convenience.

Best regards,

V.
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To: Helge Deller <deller@gmx.de>
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On Tue, 2012-05-15 at 22:28 +0200, Helge Deller wrote:
> On 05/15/2012 10:05 PM, John David Anglin wrote:
> > On 5/15/2012 3:59 PM, Helge Deller wrote:
> >> On 05/15/2012 09:46 PM, John David Anglin wrote:
> >>> On 5/15/2012 3:24 PM, John David Anglin wrote:
> >>>> James patch now let my 715/64 boot, but still crashes on my B160L:
> >>>>>
> >>>>> swapper (pid 1): Illegal instruction (code 8)
> >>>>>
> >>>>>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> >>>>> PSW: 00000000000001001110000100001111 Not tainted
> >>>>> r00-03  0004e10f 00000020 101198cc 17c245c0
> >>>>> r04-07  ffeff000 17ec05f8 007d4000 17e60260
> >>>>> r08-11  17c5100b fffff000 17e60310 00020000
> >>>>> r12-15  00000ffc 0000000b 00000000 ffeff000
> >>>>> r16-19  007d4000 10768020 10000000 17c22db8
> >>>>> r20-23  17c245c8 108fc000 00000001 00000020
> >>>>> r24-27  000007d4 0f2fffe0 0000fa80 106e2020
> >>>>> r28-31  0f2ff000 000074ee 17c24640 000072e6
> >>>>> sr00-03  00000000 00000001 00000000 00000000
> >>>>> sr04-07  00000000 00000000 00000000 00000000
> >>>>>
> >>>>> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
> >>>>>  IIR: 078113e0    ISR: 00000000  IOR: 0f2ff000
> >>>>>  CPU:        0   CR30: 17c24000 CR31: f0102978
> >>>>>  ORIG_R28: 17ebbe40
> >>>>>  IAOQ[0]: flush_icache_page_asm+0x28/0x7c
> >>>>>  IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
> >>>>>  RP(r2): flush_cache_page+0x90/0xb0
> >>>>> Backtrace:
> >>>> This one is in a different place: flush_icache_page_asm.  It has
> >>>> crashed on the first fic,m instruction.  Again it is an illegal 
> >>>> instruction.
> >>>>
> >>> Looking at the PA 1.1 arch, I see that the space register needs to be
> >>> explicitly specified on PA 1.1 (format 26).  The implicit (format 24)
> >>> instruction was added in PA 2.0.
> >>>
> >>> Could you try adding %sr0 to the fic instructions?
> >> no illegal instruction any longer, but "bad address"....
> >> I changed all to " fic,m           %r1(%sr0,%r28)"
> >>
> >>
> >>
> >> Freeing unused kernel memory: 320k freed
> >> Backtrace:
> >>  [<101198cc>] flush_cache_page+0x90/0xb0
> >>  [<101b9b84>] do_wp_page+0x1e0/0x7b4
> >>  [<101bb970>] handle_pte_fault+0x284/0x7c0
> >>  [<101bbf74>] handle_mm_fault+0xc8/0x120
> >>  [<10118cc8>] do_page_fault+0x228/0x2d0
> >>  [<1011a838>] handle_interruption+0x1d4/0x6c4
> >>  [<10105078>] intr_check_sig+0x0/0x34
> >>
> >>
> >> Bad Address (null pointer deref?): Code=17 regs=17c244c0 (Addr=0f17d000)
> >>
> >>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> >> PSW: 00000000000001001111100100001111 Not tainted
> >> r00-03  0004f90f 00000020 101198cc 17c24440
> >> r04-07  4017d4c4 17ebf498 007cd000 007cdb05
> >> r08-11  17ebee40 17ec55f4 107eb7c0 10768020
> >> r12-15  000007cd 17ebee74 000005f4 00050000
> >> r16-19  17c23098 17c24140 0011849c 17c22db8
> >> r20-23  0000004b 108fc000 00000000 00000000
> >> r24-27  000007cd 0f17dfe0 0000f9a0 106e2020
> >> r28-31  0f17d000 17c23098 17c244c0 6fffffff
> >> sr00-03  00000800 00000001 00000000 00000001
> >> sr04-07  00000000 00000000 00000000 00000000
> >>
> >> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
> >>  IIR: 078102a0    ISR: 00000800  IOR: 0f17d000
> >>  CPU:        0   CR30: 17c24000 CR31: f0102978
> >>  ORIG_R28: 17c51000
> >>  IAOQ[0]: flush_icache_page_asm+0x28/0x7c
> >>  IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
> >>  RP(r2): flush_cache_page+0x90/0xb0
> >> Backtrace:
> >>  [<101198cc>] flush_cache_page+0x90/0xb0
> >>  [<101b9b84>] do_wp_page+0x1e0/0x7b4
> >>  [<101bb970>] handle_pte_fault+0x284/0x7c0
> >>  [<101bbf74>] handle_mm_fault+0xc8/0x120
> >>  [<10118cc8>] do_page_fault+0x228/0x2d0
> >>  [<1011a838>] handle_interruption+0x1d4/0x6c4
> >>  [<10105078>] intr_check_sig+0x0/0x34
> >>
> >>
> >>
> >>
> > Try %sr2 or %sr4.  %sr0 isn't zero.
> 
> Dave, great, you fixed it !
> All my machines now boot the 32bit kernel.
> %sr2 does not work since it becomes a value unequal to zero later in the 
> boot process.
> %sr4 did worked - it's actually used further down in pacache.S in 
> flush_kernel_icache_page() as well...

Right, in the two byte space encoding, which is what we usually do, a
zero means use the correct quadrant space register (i.e. %sr4 through %
sr7 depending on which quadrant we're in.  Since PA doesn't use
quadrants, we keep them all at the space of the context - i.e. zero for
kernel).  The 24 bit form of the instruction has an explicit space
requirement, so you have to specify manually, which means just pick any
of %sr4-%sr7 since they're always the same.

> I still have the problem that my B160L "hangs" during boot after 
> starting crond - but I'm not sure if this is related to your patches 
> since the other machines do work.
> Maybe it's just some userspace trouble....
> 
> Will you send your patches to Linus as he requested in the other mail?

I'll take care of the urgent ones once we have a set of booting kernels.
My current attempts to boot a B180 are failing on RCU:

Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
devtmpfs: initialized
NET: Registered protocol family 16
Backtrace:
 [<10180fc4>] rcu_process_callbacks+0x20/0x40
 [<101330b0>] __do_softirq+0xd8/0x190
 [<101331d0>] run_ksoftirqd+0x68/0x118
 [<1014a144>] kthread+0xac/0xb4
 [<1010305c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=26 regs=2ec3c2c0 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111 Not tainted
r00-03  0004000f 104d9820 10180fc4 2ec3c240
r04-07  2ec76630 00000000 00000fff 10480910
r08-11  00000100 0000000a 104d9c60 104d9c80
r12-15  1047e884 103f16a8 00000009 f0100000
r16-19  f0000c70 f0000194 1fffffe0 00000100
r20-23  00000007 2ec222d8 2ec222d8 00000000
r24-27  00000000 0000006b 2ec222a8 1046a020
r28-31  2ec3c000 2ec222a0 2ec3c2c0 00000004
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10180f58 10180f5c
 IIR: 0ca01080    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 2ec3c000 CR31: f0102978
 ORIG_R28: 00000000
 IAOQ[0]: __rcu_process_callbacks+0x7c/0xc8
 IAOQ[1]: __rcu_process_callbacks+0x80/0xc8
 RP(r2): rcu_process_callbacks+0x20/0x40
Backtrace:
 [<10180fc4>] rcu_process_callbacks+0x20/0x40
 [<101330b0>] __do_softirq+0xd8/0x190
 [<101331d0>] run_ksoftirqd+0x68/0x118
 [<1014a144>] kthread+0xac/0xb4
 [<1010305c>] ret_from_kernel_thread+0x1c/0x24

Kernel panic - not syncing: Kernel Fault

James


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On Wed, May 16, 2012 at 10:30 AM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:
> JFYI, when comparing v3.4-rc7 to v3.4-rc6[3], the summaries are:
> =C2=A0- build errors: +15/-14

15 regressions:
  + arch/powerpc/platforms/512x/mpc512x_shared.c: error: 'enum
fsl_diu_monitor_port' declared inside parameter list [-Werror]:  =3D>
70:9, 84:9, 88:36
  + arch/powerpc/platforms/512x/mpc512x_shared.c: error: 'return' with
a value, in function returning void [-Werror]:  =3D> 189:2
  + arch/powerpc/platforms/512x/mpc512x_shared.c: error: function
declaration isn't a prototype [-Werror=3Dstrict-prototypes]:  =3D> 69:5=
,
88:6, 83:6, 187:1
  + arch/powerpc/platforms/512x/mpc512x_shared.c: error: its scope is
only this definition or declaration, which is probably not what you
want [-Werror]:  =3D> 70:9
  + drivers/virt/fsl_hypervisor.c: error: 'MSR_GS' undeclared (first
use in this function):  =3D> 799:80

powerpc randconfig

  + arch/x86/include/asm/uaccess_32.h: error: call to
'copy_from_user_overflow' declared with attribute error:
copy_from_user() buffer size is not provably correct:  =3D> 211:26

error in i386-randconfig, warning in i386-defconfig

  + drivers/ptp/ptp_pch.c: error: implicit declaration of function
'kfree' [-Werror=3Dimplicit-function-declaration]:  =3D> 576:2
  + drivers/ptp/ptp_pch.c: error: implicit declaration of function
'kzalloc' [-Werror=3Dimplicit-function-declaration]:  =3D> 587:2

Patch send.

  + error: "handle_edge_irq" [drivers/gpio/gpio-pch.ko] undefined!:  =3D=
> N/A
  + error: "irq_to_desc" [drivers/gpio/gpio-pch.ko] undefined!:  =3D> N=
/A

=46ixed in the mean time, I guess.

  + error: No rule to make target include/config/auto.conf:  =3D> N/A

x86_64-randconfig

  + lib/mpi/generic_mpih-mul1.c: error: inconsistent operand
constraints in an 'asm':  =3D> 50:70
  + lib/mpi/generic_mpih-mul2.c: error: inconsistent operand
constraints in an 'asm':  =3D> 49:70
  + lib/mpi/generic_mpih-mul3.c: error: inconsistent operand
constraints in an 'asm':  =3D> 49:70
  + lib/mpi/mpih-div.c: error: inconsistent operand constraints in an
'asm':  =3D> 135:122, 135:371, 97:122, 106:121, 106:370, 97:371

parisc-allmodconfig

Gr{oetje,eeting}s,

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 =C2=A0=C2=A0 -- Linus Torvalds
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On Wed, 2012-05-16 at 08:27 +0100, James Bottomley wrote:
> My current attempts to boot a B180 are failing on RCU:
> 
> Initializing cgroup subsys cpuacct
> Initializing cgroup subsys memory
> Initializing cgroup subsys devices
> Initializing cgroup subsys freezer
> devtmpfs: initialized
> NET: Registered protocol family 16
> Backtrace:
>  [<10180fc4>] rcu_process_callbacks+0x20/0x40
>  [<101330b0>] __do_softirq+0xd8/0x190
>  [<101331d0>] run_ksoftirqd+0x68/0x118
>  [<1014a144>] kthread+0xac/0xb4
>  [<1010305c>] ret_from_kernel_thread+0x1c/0x24
> 
> 
> Kernel Fault: Code=26 regs=2ec3c2c0 (Addr=00000000)

OK, debugged this: it's a prefetch(NULL) in the RCU code.  Apparently on
the PA7300LC processor, which is what my B180 has, this is actually
generating a dtlb insertion interruption.  The fix is to nullify the
prefetch if the address is zero, which I'm testing out now.

James


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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On Wed, 2012-05-16 at 10:27 +0100, James Bottomley wrote:
> On Wed, 2012-05-16 at 08:27 +0100, James Bottomley wrote:
> > My current attempts to boot a B180 are failing on RCU:
> > 
> > Initializing cgroup subsys cpuacct
> > Initializing cgroup subsys memory
> > Initializing cgroup subsys devices
> > Initializing cgroup subsys freezer
> > devtmpfs: initialized
> > NET: Registered protocol family 16
> > Backtrace:
> >  [<10180fc4>] rcu_process_callbacks+0x20/0x40
> >  [<101330b0>] __do_softirq+0xd8/0x190
> >  [<101331d0>] run_ksoftirqd+0x68/0x118
> >  [<1014a144>] kthread+0xac/0xb4
> >  [<1010305c>] ret_from_kernel_thread+0x1c/0x24
> > 
> > 
> > Kernel Fault: Code=26 regs=2ec3c2c0 (Addr=00000000)
> 
> OK, debugged this: it's a prefetch(NULL) in the RCU code.  Apparently on
> the PA7300LC processor, which is what my B180 has, this is actually
> generating a dtlb insertion interruption.  The fix is to nullify the
> prefetch if the address is zero, which I'm testing out now.

OK, confirmed, my B180 finally boot.  This is the final patch it needed.

James

---

diff --git a/arch/parisc/include/asm/prefetch.h b/arch/parisc/include/asm/prefetch.h
index c5edc60..1ee7c82 100644
--- a/arch/parisc/include/asm/prefetch.h
+++ b/arch/parisc/include/asm/prefetch.h
@@ -21,7 +21,12 @@
 #define ARCH_HAS_PREFETCH
 static inline void prefetch(const void *addr)
 {
-	__asm__("ldw 0(%0), %%r0" : : "r" (addr));
+	__asm__(
+#ifndef CONFIG_PA20
+		/* Need to avoid prefetch of NULL on PA7300LC */
+		"	extrw,u,= %0,31,32,%%r0\n"
+#endif
+		"	ldw 0(%0), %%r0" : : "r" (addr));
 }
 
 /* LDD is a PA2.0 addition. */


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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On 16-May-12, at 3:27 AM, James Bottomley wrote:

> On Tue, 2012-05-15 at 22:28 +0200, Helge Deller wrote:
>> On 05/15/2012 10:05 PM, John David Anglin wrote:
>>> On 5/15/2012 3:59 PM, Helge Deller wrote:
>>>> On 05/15/2012 09:46 PM, John David Anglin wrote:
>>>>> On 5/15/2012 3:24 PM, John David Anglin wrote:
>>>>>> James patch now let my 715/64 boot, but still crashes on my  
>>>>>> B160L:
>>>>>>>
>>>>>>> swapper (pid 1): Illegal instruction (code 8)
>>>>>>>
>>>>>>>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>>>>>> PSW: 00000000000001001110000100001111 Not tainted
>>>>>>> r00-03  0004e10f 00000020 101198cc 17c245c0
>>>>>>> r04-07  ffeff000 17ec05f8 007d4000 17e60260
>>>>>>> r08-11  17c5100b fffff000 17e60310 00020000
>>>>>>> r12-15  00000ffc 0000000b 00000000 ffeff000
>>>>>>> r16-19  007d4000 10768020 10000000 17c22db8
>>>>>>> r20-23  17c245c8 108fc000 00000001 00000020
>>>>>>> r24-27  000007d4 0f2fffe0 0000fa80 106e2020
>>>>>>> r28-31  0f2ff000 000074ee 17c24640 000072e6
>>>>>>> sr00-03  00000000 00000001 00000000 00000000
>>>>>>> sr04-07  00000000 00000000 00000000 00000000
>>>>>>>
>>>>>>> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
>>>>>>> IIR: 078113e0    ISR: 00000000  IOR: 0f2ff000
>>>>>>> CPU:        0   CR30: 17c24000 CR31: f0102978
>>>>>>> ORIG_R28: 17ebbe40
>>>>>>> IAOQ[0]: flush_icache_page_asm+0x28/0x7c
>>>>>>> IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
>>>>>>> RP(r2): flush_cache_page+0x90/0xb0
>>>>>>> Backtrace:
>>>>>> This one is in a different place: flush_icache_page_asm.  It has
>>>>>> crashed on the first fic,m instruction.  Again it is an illegal
>>>>>> instruction.
>>>>>>
>>>>> Looking at the PA 1.1 arch, I see that the space register needs  
>>>>> to be
>>>>> explicitly specified on PA 1.1 (format 26).  The implicit  
>>>>> (format 24)
>>>>> instruction was added in PA 2.0.
>>>>>
>>>>> Could you try adding %sr0 to the fic instructions?
>>>> no illegal instruction any longer, but "bad address"....
>>>> I changed all to " fic,m           %r1(%sr0,%r28)"
>>>>
>>>>
>>>>
>>>> Freeing unused kernel memory: 320k freed
>>>> Backtrace:
>>>> [<101198cc>] flush_cache_page+0x90/0xb0
>>>> [<101b9b84>] do_wp_page+0x1e0/0x7b4
>>>> [<101bb970>] handle_pte_fault+0x284/0x7c0
>>>> [<101bbf74>] handle_mm_fault+0xc8/0x120
>>>> [<10118cc8>] do_page_fault+0x228/0x2d0
>>>> [<1011a838>] handle_interruption+0x1d4/0x6c4
>>>> [<10105078>] intr_check_sig+0x0/0x34
>>>>
>>>>
>>>> Bad Address (null pointer deref?): Code=17 regs=17c244c0  
>>>> (Addr=0f17d000)
>>>>
>>>>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>>> PSW: 00000000000001001111100100001111 Not tainted
>>>> r00-03  0004f90f 00000020 101198cc 17c24440
>>>> r04-07  4017d4c4 17ebf498 007cd000 007cdb05
>>>> r08-11  17ebee40 17ec55f4 107eb7c0 10768020
>>>> r12-15  000007cd 17ebee74 000005f4 00050000
>>>> r16-19  17c23098 17c24140 0011849c 17c22db8
>>>> r20-23  0000004b 108fc000 00000000 00000000
>>>> r24-27  000007cd 0f17dfe0 0000f9a0 106e2020
>>>> r28-31  0f17d000 17c23098 17c244c0 6fffffff
>>>> sr00-03  00000800 00000001 00000000 00000001
>>>> sr04-07  00000000 00000000 00000000 00000000
>>>>
>>>> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
>>>> IIR: 078102a0    ISR: 00000800  IOR: 0f17d000
>>>> CPU:        0   CR30: 17c24000 CR31: f0102978
>>>> ORIG_R28: 17c51000
>>>> IAOQ[0]: flush_icache_page_asm+0x28/0x7c
>>>> IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
>>>> RP(r2): flush_cache_page+0x90/0xb0
>>>> Backtrace:
>>>> [<101198cc>] flush_cache_page+0x90/0xb0
>>>> [<101b9b84>] do_wp_page+0x1e0/0x7b4
>>>> [<101bb970>] handle_pte_fault+0x284/0x7c0
>>>> [<101bbf74>] handle_mm_fault+0xc8/0x120
>>>> [<10118cc8>] do_page_fault+0x228/0x2d0
>>>> [<1011a838>] handle_interruption+0x1d4/0x6c4
>>>> [<10105078>] intr_check_sig+0x0/0x34
>>>>
>>>>
>>>>
>>>>
>>> Try %sr2 or %sr4.  %sr0 isn't zero.
>>
>> Dave, great, you fixed it !
>> All my machines now boot the 32bit kernel.
>> %sr2 does not work since it becomes a value unequal to zero later  
>> in the
>> boot process.
>> %sr4 did worked - it's actually used further down in pacache.S in
>> flush_kernel_icache_page() as well...
>
> Right, in the two byte space encoding, which is what we usually do, a
> zero means use the correct quadrant space register (i.e. %sr4  
> through %
> sr7 depending on which quadrant we're in.  Since PA doesn't use
> quadrants, we keep them all at the space of the context - i.e. zero  
> for
> kernel).  The 24 bit form of the instruction has an explicit space
> requirement, so you have to specify manually, which means just pick  
> any
> of %sr4-%sr7 since they're always the same.

Don't forget to update the purge TLB instructions before and after the  
loop.

>> I still have the problem that my B160L "hangs" during boot after
>> starting crond - but I'm not sure if this is related to your patches
>> since the other machines do work.
>> Maybe it's just some userspace trouble....
>>
>> Will you send your patches to Linus as he requested in the other  
>> mail?
>
> I'll take care of the urgent ones once we have a set of booting  
> kernels.


Dave
--
John David Anglin	dave.anglin@bell.net



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On Wed, 2012-05-16 at 06:49 -0400, John David Anglin wrote:
> On 16-May-12, at 3:27 AM, James Bottomley wrote:
> 
> > On Tue, 2012-05-15 at 22:28 +0200, Helge Deller wrote:
> >> On 05/15/2012 10:05 PM, John David Anglin wrote:
> >>> On 5/15/2012 3:59 PM, Helge Deller wrote:
> >>>> On 05/15/2012 09:46 PM, John David Anglin wrote:
> >>>>> On 5/15/2012 3:24 PM, John David Anglin wrote:
> >>>>>> James patch now let my 715/64 boot, but still crashes on my  
> >>>>>> B160L:
> >>>>>>>
> >>>>>>> swapper (pid 1): Illegal instruction (code 8)
> >>>>>>>
> >>>>>>>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> >>>>>>> PSW: 00000000000001001110000100001111 Not tainted
> >>>>>>> r00-03  0004e10f 00000020 101198cc 17c245c0
> >>>>>>> r04-07  ffeff000 17ec05f8 007d4000 17e60260
> >>>>>>> r08-11  17c5100b fffff000 17e60310 00020000
> >>>>>>> r12-15  00000ffc 0000000b 00000000 ffeff000
> >>>>>>> r16-19  007d4000 10768020 10000000 17c22db8
> >>>>>>> r20-23  17c245c8 108fc000 00000001 00000020
> >>>>>>> r24-27  000007d4 0f2fffe0 0000fa80 106e2020
> >>>>>>> r28-31  0f2ff000 000074ee 17c24640 000072e6
> >>>>>>> sr00-03  00000000 00000001 00000000 00000000
> >>>>>>> sr04-07  00000000 00000000 00000000 00000000
> >>>>>>>
> >>>>>>> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
> >>>>>>> IIR: 078113e0    ISR: 00000000  IOR: 0f2ff000
> >>>>>>> CPU:        0   CR30: 17c24000 CR31: f0102978
> >>>>>>> ORIG_R28: 17ebbe40
> >>>>>>> IAOQ[0]: flush_icache_page_asm+0x28/0x7c
> >>>>>>> IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
> >>>>>>> RP(r2): flush_cache_page+0x90/0xb0
> >>>>>>> Backtrace:
> >>>>>> This one is in a different place: flush_icache_page_asm.  It has
> >>>>>> crashed on the first fic,m instruction.  Again it is an illegal
> >>>>>> instruction.
> >>>>>>
> >>>>> Looking at the PA 1.1 arch, I see that the space register needs  
> >>>>> to be
> >>>>> explicitly specified on PA 1.1 (format 26).  The implicit  
> >>>>> (format 24)
> >>>>> instruction was added in PA 2.0.
> >>>>>
> >>>>> Could you try adding %sr0 to the fic instructions?
> >>>> no illegal instruction any longer, but "bad address"....
> >>>> I changed all to " fic,m           %r1(%sr0,%r28)"
> >>>>
> >>>>
> >>>>
> >>>> Freeing unused kernel memory: 320k freed
> >>>> Backtrace:
> >>>> [<101198cc>] flush_cache_page+0x90/0xb0
> >>>> [<101b9b84>] do_wp_page+0x1e0/0x7b4
> >>>> [<101bb970>] handle_pte_fault+0x284/0x7c0
> >>>> [<101bbf74>] handle_mm_fault+0xc8/0x120
> >>>> [<10118cc8>] do_page_fault+0x228/0x2d0
> >>>> [<1011a838>] handle_interruption+0x1d4/0x6c4
> >>>> [<10105078>] intr_check_sig+0x0/0x34
> >>>>
> >>>>
> >>>> Bad Address (null pointer deref?): Code=17 regs=17c244c0  
> >>>> (Addr=0f17d000)
> >>>>
> >>>>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> >>>> PSW: 00000000000001001111100100001111 Not tainted
> >>>> r00-03  0004f90f 00000020 101198cc 17c24440
> >>>> r04-07  4017d4c4 17ebf498 007cd000 007cdb05
> >>>> r08-11  17ebee40 17ec55f4 107eb7c0 10768020
> >>>> r12-15  000007cd 17ebee74 000005f4 00050000
> >>>> r16-19  17c23098 17c24140 0011849c 17c22db8
> >>>> r20-23  0000004b 108fc000 00000000 00000000
> >>>> r24-27  000007cd 0f17dfe0 0000f9a0 106e2020
> >>>> r28-31  0f17d000 17c23098 17c244c0 6fffffff
> >>>> sr00-03  00000800 00000001 00000000 00000001
> >>>> sr04-07  00000000 00000000 00000000 00000000
> >>>>
> >>>> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
> >>>> IIR: 078102a0    ISR: 00000800  IOR: 0f17d000
> >>>> CPU:        0   CR30: 17c24000 CR31: f0102978
> >>>> ORIG_R28: 17c51000
> >>>> IAOQ[0]: flush_icache_page_asm+0x28/0x7c
> >>>> IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
> >>>> RP(r2): flush_cache_page+0x90/0xb0
> >>>> Backtrace:
> >>>> [<101198cc>] flush_cache_page+0x90/0xb0
> >>>> [<101b9b84>] do_wp_page+0x1e0/0x7b4
> >>>> [<101bb970>] handle_pte_fault+0x284/0x7c0
> >>>> [<101bbf74>] handle_mm_fault+0xc8/0x120
> >>>> [<10118cc8>] do_page_fault+0x228/0x2d0
> >>>> [<1011a838>] handle_interruption+0x1d4/0x6c4
> >>>> [<10105078>] intr_check_sig+0x0/0x34
> >>>>
> >>>>
> >>>>
> >>>>
> >>> Try %sr2 or %sr4.  %sr0 isn't zero.
> >>
> >> Dave, great, you fixed it !
> >> All my machines now boot the 32bit kernel.
> >> %sr2 does not work since it becomes a value unequal to zero later  
> >> in the
> >> boot process.
> >> %sr4 did worked - it's actually used further down in pacache.S in
> >> flush_kernel_icache_page() as well...
> >
> > Right, in the two byte space encoding, which is what we usually do, a
> > zero means use the correct quadrant space register (i.e. %sr4  
> > through %
> > sr7 depending on which quadrant we're in.  Since PA doesn't use
> > quadrants, we keep them all at the space of the context - i.e. zero  
> > for
> > kernel).  The 24 bit form of the instruction has an explicit space
> > requirement, so you have to specify manually, which means just pick  
> > any
> > of %sr4-%sr7 since they're always the same.
> 
> Don't forget to update the purge TLB instructions before and after the  
> loop.

Right, this is what I have currently.

On a related note, do you want me to put you down as author of this,
since you identified the problem?

James

---

As pointed out by serveral people, PA1.1 only has a type 26 instruction
meaning that the space register must be explicitly encoded.  Not giving an
explicit space means that the compiler uses the type 24 version which is PA2.0
only resulting in an illegal instruction crash.

This regression was caused by

    commit f311847c2fcebd81912e2f0caf8a461dec28db41
    Author: James Bottomley <James.Bottomley@HansenPartnership.com>
    Date:   Wed Dec 22 10:22:11 2010 -0600

        parisc: flush pages through tmpalias space

Reported-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org	#2.6.39+
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 93ff3d9..f1b4c1c 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -692,7 +692,7 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
-	pitlb		(%sr0,%r28)
+	pitlb		(%sr4,%r28)
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -706,27 +706,29 @@ ENTRY(flush_icache_page_asm)
 	sub		%r25, %r1, %r25
 
 
-1:      fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
+	/* fic only has the type 24 form on PA1.1, requiring an
+	 * explicit space specification, so use %sr4 */
+1:      fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
 	cmpb,COND(<<)		%r28, %r25,1b
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
 
 	sync
 	bv		%r0(%r2)
-	pitlb		(%sr0,%r25)
+	pitlb		(%sr4,%r25)
 	.exit
 
 	.procend


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From - Thu Nov 08 21:08:18 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
Date: Wed, 16 May 2012 07:17:19 -0400
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Cc: Helge Deller <deller@gmx.de>, Vincent <vincent.stehle@laposte.net>,
	Rolf Eike Beer <eike-kernel@sf-tec.de>,
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Please add:

Signed-off by:  John David Anglin  <dave.anglin@bell.net>

On 16-May-12, at 6:57 AM, James Bottomley wrote:

> On Wed, 2012-05-16 at 06:49 -0400, John David Anglin wrote:
>> On 16-May-12, at 3:27 AM, James Bottomley wrote:
>>
>>> On Tue, 2012-05-15 at 22:28 +0200, Helge Deller wrote:
>>>> On 05/15/2012 10:05 PM, John David Anglin wrote:
>>>>> On 5/15/2012 3:59 PM, Helge Deller wrote:
>>>>>> On 05/15/2012 09:46 PM, John David Anglin wrote:
>>>>>>> On 5/15/2012 3:24 PM, John David Anglin wrote:
>>>>>>>> James patch now let my 715/64 boot, but still crashes on my
>>>>>>>> B160L:
>>>>>>>>>
>>>>>>>>> swapper (pid 1): Illegal instruction (code 8)
>>>>>>>>>
>>>>>>>>>    YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>>>>>>>> PSW: 00000000000001001110000100001111 Not tainted
>>>>>>>>> r00-03  0004e10f 00000020 101198cc 17c245c0
>>>>>>>>> r04-07  ffeff000 17ec05f8 007d4000 17e60260
>>>>>>>>> r08-11  17c5100b fffff000 17e60310 00020000
>>>>>>>>> r12-15  00000ffc 0000000b 00000000 ffeff000
>>>>>>>>> r16-19  007d4000 10768020 10000000 17c22db8
>>>>>>>>> r20-23  17c245c8 108fc000 00000001 00000020
>>>>>>>>> r24-27  000007d4 0f2fffe0 0000fa80 106e2020
>>>>>>>>> r28-31  0f2ff000 000074ee 17c24640 000072e6
>>>>>>>>> sr00-03  00000000 00000001 00000000 00000000
>>>>>>>>> sr04-07  00000000 00000000 00000000 00000000
>>>>>>>>>
>>>>>>>>> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
>>>>>>>>> IIR: 078113e0    ISR: 00000000  IOR: 0f2ff000
>>>>>>>>> CPU:        0   CR30: 17c24000 CR31: f0102978
>>>>>>>>> ORIG_R28: 17ebbe40
>>>>>>>>> IAOQ[0]: flush_icache_page_asm+0x28/0x7c
>>>>>>>>> IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
>>>>>>>>> RP(r2): flush_cache_page+0x90/0xb0
>>>>>>>>> Backtrace:
>>>>>>>> This one is in a different place: flush_icache_page_asm.  It  
>>>>>>>> has
>>>>>>>> crashed on the first fic,m instruction.  Again it is an illegal
>>>>>>>> instruction.
>>>>>>>>
>>>>>>> Looking at the PA 1.1 arch, I see that the space register needs
>>>>>>> to be
>>>>>>> explicitly specified on PA 1.1 (format 26).  The implicit
>>>>>>> (format 24)
>>>>>>> instruction was added in PA 2.0.
>>>>>>>
>>>>>>> Could you try adding %sr0 to the fic instructions?
>>>>>> no illegal instruction any longer, but "bad address"....
>>>>>> I changed all to " fic,m           %r1(%sr0,%r28)"
>>>>>>
>>>>>>
>>>>>>
>>>>>> Freeing unused kernel memory: 320k freed
>>>>>> Backtrace:
>>>>>> [<101198cc>] flush_cache_page+0x90/0xb0
>>>>>> [<101b9b84>] do_wp_page+0x1e0/0x7b4
>>>>>> [<101bb970>] handle_pte_fault+0x284/0x7c0
>>>>>> [<101bbf74>] handle_mm_fault+0xc8/0x120
>>>>>> [<10118cc8>] do_page_fault+0x228/0x2d0
>>>>>> [<1011a838>] handle_interruption+0x1d4/0x6c4
>>>>>> [<10105078>] intr_check_sig+0x0/0x34
>>>>>>
>>>>>>
>>>>>> Bad Address (null pointer deref?): Code=17 regs=17c244c0
>>>>>> (Addr=0f17d000)
>>>>>>
>>>>>>    YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>>>>> PSW: 00000000000001001111100100001111 Not tainted
>>>>>> r00-03  0004f90f 00000020 101198cc 17c24440
>>>>>> r04-07  4017d4c4 17ebf498 007cd000 007cdb05
>>>>>> r08-11  17ebee40 17ec55f4 107eb7c0 10768020
>>>>>> r12-15  000007cd 17ebee74 000005f4 00050000
>>>>>> r16-19  17c23098 17c24140 0011849c 17c22db8
>>>>>> r20-23  0000004b 108fc000 00000000 00000000
>>>>>> r24-27  000007cd 0f17dfe0 0000f9a0 106e2020
>>>>>> r28-31  0f17d000 17c23098 17c244c0 6fffffff
>>>>>> sr00-03  00000800 00000001 00000000 00000001
>>>>>> sr04-07  00000000 00000000 00000000 00000000
>>>>>>
>>>>>> IASQ: 00000000 00000000 IAOQ: 1010118c 10101190
>>>>>> IIR: 078102a0    ISR: 00000800  IOR: 0f17d000
>>>>>> CPU:        0   CR30: 17c24000 CR31: f0102978
>>>>>> ORIG_R28: 17c51000
>>>>>> IAOQ[0]: flush_icache_page_asm+0x28/0x7c
>>>>>> IAOQ[1]: flush_icache_page_asm+0x2c/0x7c
>>>>>> RP(r2): flush_cache_page+0x90/0xb0
>>>>>> Backtrace:
>>>>>> [<101198cc>] flush_cache_page+0x90/0xb0
>>>>>> [<101b9b84>] do_wp_page+0x1e0/0x7b4
>>>>>> [<101bb970>] handle_pte_fault+0x284/0x7c0
>>>>>> [<101bbf74>] handle_mm_fault+0xc8/0x120
>>>>>> [<10118cc8>] do_page_fault+0x228/0x2d0
>>>>>> [<1011a838>] handle_interruption+0x1d4/0x6c4
>>>>>> [<10105078>] intr_check_sig+0x0/0x34
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>> Try %sr2 or %sr4.  %sr0 isn't zero.
>>>>
>>>> Dave, great, you fixed it !
>>>> All my machines now boot the 32bit kernel.
>>>> %sr2 does not work since it becomes a value unequal to zero later
>>>> in the
>>>> boot process.
>>>> %sr4 did worked - it's actually used further down in pacache.S in
>>>> flush_kernel_icache_page() as well...
>>>
>>> Right, in the two byte space encoding, which is what we usually  
>>> do, a
>>> zero means use the correct quadrant space register (i.e. %sr4
>>> through %
>>> sr7 depending on which quadrant we're in.  Since PA doesn't use
>>> quadrants, we keep them all at the space of the context - i.e. zero
>>> for
>>> kernel).  The 24 bit form of the instruction has an explicit space
>>> requirement, so you have to specify manually, which means just pick
>>> any
>>> of %sr4-%sr7 since they're always the same.
>>
>> Don't forget to update the purge TLB instructions before and after  
>> the
>> loop.
>
> Right, this is what I have currently.
>
> On a related note, do you want me to put you down as author of this,
> since you identified the problem?
>
> James
>
> ---
>
> As pointed out by serveral people, PA1.1 only has a type 26  
> instruction
> meaning that the space register must be explicitly encoded.  Not  
> giving an
> explicit space means that the compiler uses the type 24 version  
> which is PA2.0
> only resulting in an illegal instruction crash.
>
> This regression was caused by
>
>    commit f311847c2fcebd81912e2f0caf8a461dec28db41
>    Author: James Bottomley <James.Bottomley@HansenPartnership.com>
>    Date:   Wed Dec 22 10:22:11 2010 -0600
>
>        parisc: flush pages through tmpalias space
>
> Reported-by: Helge Deller <deller@gmx.de>
> Cc: stable@vger.kernel.org	#2.6.39+
> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
>
> diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/ 
> pacache.S
> index 93ff3d9..f1b4c1c 100644
> --- a/arch/parisc/kernel/pacache.S
> +++ b/arch/parisc/kernel/pacache.S
> @@ -692,7 +692,7 @@ ENTRY(flush_icache_page_asm)
>
> 	/* Purge any old translation */
>
> -	pitlb		(%sr0,%r28)
> +	pitlb		(%sr4,%r28)
>
> 	ldil		L%icache_stride, %r1
> 	ldw		R%icache_stride(%r1), %r1
> @@ -706,27 +706,29 @@ ENTRY(flush_icache_page_asm)
> 	sub		%r25, %r1, %r25
>
>
> -1:      fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> -	fic,m		%r1(%r28)
> +	/* fic only has the type 24 form on PA1.1, requiring an
> +	 * explicit space specification, so use %sr4 */
> +1:      fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> +	fic,m		%r1(%sr4,%r28)
> 	cmpb,COND(<<)		%r28, %r25,1b
> -	fic,m		%r1(%r28)
> +	fic,m		%r1(%sr4,%r28)
>
> 	sync
> 	bv		%r0(%r2)
> -	pitlb		(%sr0,%r25)
> +	pitlb		(%sr4,%r25)
> 	.exit
>
> 	.procend
>
>
>


Thanks,
Dave
--
John David Anglin	dave.anglin@bell.net



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> As pointed out by serveral people, PA1.1 only has a type 26 instruction
> meaning that the space register must be explicitly encoded.  Not giving an
> explicit space means that the compiler uses the type 24 version which is
> PA2.0
> only resulting in an illegal instruction crash.

> +	/* fic only has the type 24 form on PA1.1, requiring an
> +	 * explicit space specification, so use %sr4 */

Once you say 2.0 and once 1.1, I assume the latter is a typo?

Eike
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On Wed, 2012-05-16 at 13:57 +0200, Rolf Eike Beer wrote:
> > As pointed out by serveral people, PA1.1 only has a type 26 instruction
> > meaning that the space register must be explicitly encoded.  Not giving an
> > explicit space means that the compiler uses the type 24 version which is
> > PA2.0
> > only resulting in an illegal instruction crash.
> 
> > +	/* fic only has the type 24 form on PA1.1, requiring an
> > +	 * explicit space specification, so use %sr4 */
> 
> Once you say 2.0 and once 1.1, I assume the latter is a typo?

Yes, it should be 26 ... I already fixed this up before pushing it out.

James


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On Wed, 2012-05-16 at 10:47 +0200, Geert Uytterhoeven wrote:
> On Wed, May 16, 2012 at 10:30 AM, Geert Uytterhoeven
> <geert@linux-m68k.org> wrote:
>   + lib/mpi/generic_mpih-mul1.c: error: inconsistent operand
> constraints in an 'asm':  => 50:70
>   + lib/mpi/generic_mpih-mul2.c: error: inconsistent operand
> constraints in an 'asm':  => 49:70
>   + lib/mpi/generic_mpih-mul3.c: error: inconsistent operand
> constraints in an 'asm':  => 49:70
>   + lib/mpi/mpih-div.c: error: inconsistent operand constraints in an
> 'asm':  => 135:122, 135:371, 97:122, 106:121, 106:370, 97:371
> 
> parisc-allmodconfig

Wow, lib/mpi/ is a complete horror: it's full of hand crafted asm code.
The error in this case appears to be that umul_ppm() is implemented as
an xmpyu instruction.  That's a floating point instruction.  We
deliberately compile the kernel with floating point disabled because we
don't want to save and restore the floating point register file on each
context switch, hence the operand constraints are unsatisfiable.

It appears to be completely untested on non-x86 and to have been
imported via the security tree ... what are we supposed to do with this?
I thought the general principle was that asm code was really supposed to
be confined to the arch directories?

James



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On Tue, 2012-05-15 at 16:48 -0400, John David Anglin wrote:
> On 5/15/2012 4:28 PM, Helge Deller wrote:
> > Will you send your patches to Linus as he requested in the other mail?
> You have the diff for the two PA 1.1 changes.  Suggest you send them.
> I think these should go to stable as well as soon as it is verified that all
> targets boot.
> 
> I think my cache-2 is more appropriate for linux-next.  There are a number
> of subtle issues with it.  I am pleased that the users that have tried 
> it have
> been generally happy with it.

So to be a patch for the linux kernel, it really needs to be divided up
into its components.  It looks like cache-2 is a combination of five or
six separate things, and each one needs a change long.

James


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On Wed, May 16, 2012 at 5:46 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Wed, 2012-05-16 at 10:47 +0200, Geert Uytterhoeven wrote:
>> On Wed, May 16, 2012 at 10:30 AM, Geert Uytterhoeven
>> <geert@linux-m68k.org> wrote:
>> =C2=A0 + lib/mpi/generic_mpih-mul1.c: error: inconsistent operand
>> constraints in an 'asm': =C2=A0=3D> 50:70
>> =C2=A0 + lib/mpi/generic_mpih-mul2.c: error: inconsistent operand
>> constraints in an 'asm': =C2=A0=3D> 49:70
>> =C2=A0 + lib/mpi/generic_mpih-mul3.c: error: inconsistent operand
>> constraints in an 'asm': =C2=A0=3D> 49:70
>> =C2=A0 + lib/mpi/mpih-div.c: error: inconsistent operand constraints=
 in an
>> 'asm': =C2=A0=3D> 135:122, 135:371, 97:122, 106:121, 106:370, 97:371
>>
>> parisc-allmodconfig
>
> Wow, lib/mpi/ is a complete horror: it's full of hand crafted asm cod=
e.
> The error in this case appears to be that umul_ppm() is implemented a=
s
> an xmpyu instruction. =C2=A0That's a floating point instruction. =C2=A0=
We
> deliberately compile the kernel with floating point disabled because =
we
> don't want to save and restore the floating point register file on ea=
ch
> context switch, hence the operand constraints are unsatisfiable.
>
> It appears to be completely untested on non-x86 and to have been
> imported via the security tree ... what are we supposed to do with th=
is?
> I thought the general principle was that asm code was really supposed=
 to
> be confined to the arch directories?
>
> James
>
>

Yes.. it is suxx.
But it is only longlong.h and inherited from gpg..
And now there is a stuff such as /include/math-emu/soft-fp and
<stdlib/longlong.h>
I planned to look to that but now I will start doing it right away.

- Dmitry

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On Wed, May 16, 2012 at 4:46 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Wed, 2012-05-16 at 10:47 +0200, Geert Uytterhoeven wrote:
>> On Wed, May 16, 2012 at 10:30 AM, Geert Uytterhoeven
>> <geert@linux-m68k.org> wrote:
>> =C2=A0 + lib/mpi/generic_mpih-mul1.c: error: inconsistent operand
>> constraints in an 'asm': =C2=A0=3D> 50:70
>> =C2=A0 + lib/mpi/generic_mpih-mul2.c: error: inconsistent operand
>> constraints in an 'asm': =C2=A0=3D> 49:70
>> =C2=A0 + lib/mpi/generic_mpih-mul3.c: error: inconsistent operand
>> constraints in an 'asm': =C2=A0=3D> 49:70
>> =C2=A0 + lib/mpi/mpih-div.c: error: inconsistent operand constraints=
 in an
>> 'asm': =C2=A0=3D> 135:122, 135:371, 97:122, 106:121, 106:370, 97:371
>>
>> parisc-allmodconfig
>
> Wow, lib/mpi/ is a complete horror: it's full of hand crafted asm cod=
e.
> The error in this case appears to be that umul_ppm() is implemented a=
s
> an xmpyu instruction. =C2=A0That's a floating point instruction. =C2=A0=
We
> deliberately compile the kernel with floating point disabled because =
we
> don't want to save and restore the floating point register file on ea=
ch
> context switch, hence the operand constraints are unsatisfiable.

It also does fishy things on m68k, cfr. https://lkml.org/lkml/2012/3/11=
/22

> It appears to be completely untested on non-x86 and to have been
> imported via the security tree ... what are we supposed to do with th=
is?
> I thought the general principle was that asm code was really supposed=
 to
> be confined to the arch directories?

Kick it out again, or contain it in staging?

Gr{oetje,eeting}s,

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 =C2=A0=C2=A0 -- Linus Torvalds
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On 05/15/2012 11:01 PM, Vincent wrote:
> On 05/15/2012 11:13 AM, James Bottomley wrote:
> (..)
>> OK, I think this is the problem.  We have a depd instruction in do_alias
>> which is now in the _11 fault paths.
>>
>> This should be the fix, if someone wants to test it before I can get
>> around to building it.
> Hi James,
>
> This makes my hp712 boot now; congrats!
>
> Works for me with v3.4-rc6 and v3.4-rc7, with the following "patches pile":
>
> depd patch     (http://www.spinics.net/lists/linux-parisc/msg04169.html)
> sections patch (http://www.spinics.net/lists/linux-parisc/msg04091.html)
> cache patch    (http://www.spinics.net/lists/linux-parisc/msg04120.html)
> v3.4-rc7
I can confirm that the "sections patch" mentioned above is needed for my 
B160L as well.
It probably happens since I build a monolithic kernel with all needed 
modules built-in.

@James: Any chance to include this patch (or a similar one) into your 
fixes branch?

BTW, I still have issues with the B160L hanging after starting crond.... 
looking into it now...

Helge


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On Wed, 2012-05-16 at 10:47 +0200, Geert Uytterhoeven wrote:
> On Wed, May 16, 2012 at 10:30 AM, Geert Uytterhoeven
> <geert@linux-m68k.org> wrote:
> > JFYI, when comparing v3.4-rc7 to v3.4-rc6[3], the summaries are:
> >  - build errors: +15/-14
> 
> 15 regressions:
>   + arch/powerpc/platforms/512x/mpc512x_shared.c: error: 'enum
> fsl_diu_monitor_port' declared inside parameter list [-Werror]:  =>
> 70:9, 84:9, 88:36
>   + arch/powerpc/platforms/512x/mpc512x_shared.c: error: 'return' with
> a value, in function returning void [-Werror]:  => 189:2
>   + arch/powerpc/platforms/512x/mpc512x_shared.c: error: function
> declaration isn't a prototype [-Werror=strict-prototypes]:  => 69:5,
> 88:6, 83:6, 187:1
>   + arch/powerpc/platforms/512x/mpc512x_shared.c: error: its scope is
> only this definition or declaration, which is probably not what you
> want [-Werror]:  => 70:9
>   + drivers/virt/fsl_hypervisor.c: error: 'MSR_GS' undeclared (first
> use in this function):  => 799:80
>
> powerpc randconfig
 
Thanks. These are all freescale platforms, the relevant people should be
already but I've added Scott and Kumar to the CC list just in case.

Cheers,
Ben.

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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On 16-May-12, at 10:46 AM, James Bottomley wrote:

> Wow, lib/mpi/ is a complete horror: it's full of hand crafted asm  
> code.
> The error in this case appears to be that umul_ppm() is implemented as
> an xmpyu instruction.  That's a floating point instruction.  We
> deliberately compile the kernel with floating point disabled because  
> we
> don't want to save and restore the floating point register file on  
> each
> context switch, hence the operand constraints are unsatisfiable.

I haven't tried this but I think the parisc implementation of umul_ppmm
can be deleted.  There is a generic version in the file.

Dave
--
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On Sun, 2012-04-22 at 08:20 -0400, John David Anglin wrote:
> On 19-Apr-12, at 4:26 AM, Guy Martin wrote:
> 
> > Hi all,
> >
> > I compiled a kernel with a few additional features and I was unable to
> > boot it. It seems that if the entry point is not 0x00100000 in  
> > vmlinux,
> > the boot process fails right after "Total Memory: 2048 MB".
> > This is the only common denominator I could find.
> >
> > I've been able to reproduce this with :
> > - C3600 and J5600
> > - kernel 3.2.12 and 3.3.1
> > - gcc 4.5.3
> > - ld 2.21 and 2.22
> > - palo 1.17 and 1.18
> 
> 
> Could you try the attached patch?  It adjusts the section arrangement so
> that the long branch stubs don't appear at the start of .text.  As a  
> result,
> _stext and stext now are at 10100000.
> 
> The problem arises from section merging and a few branch distances
> in the kernel exceeding the PA 2.0 limit.
> 
> The patch might not work if the long branch stubs don't work...
> 
> Another approach might be to add -mlong-calls to CFLAGS.  However,
> these calls are less efficient.

OK, to add this to the fixes repo, I need a change log and a signoff
(from Dave).

I think the changelog would be:

---
fix boot failure on 32 bit caused by out of range branch stubs

In certain configurations, the resulting kernel becomes too large to
boot because the branch stubs are all placed at the very start of the
image.  Fix this by placing the branch stubs after the head text so the
distances are a bit shorter.
---

Is that about right?

Thanks,

James


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Subject: [PATCH] PARISC: fix boot failure on 32-bit systems caused by branch
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This is a multi-part message in MIME format.
--------------010900040001070703090800
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

In certain configurations, the resulting kernel becomes too large to 
boot because
the linker places the long branch stubs for the merged .text section at 
the very start
of the image.  As a result, the initial transfer of control jumps to an 
unexpected
location.  Fix this by placing the head text in a separate section so 
the stubs for
.text are not at the start of the image.

Signed-off-by: John David Anglin <dave.anglin@bell.net>

-- 
John David Anglin    dave.anglin@bell.net


--------------010900040001070703090800
Content-Type: text/plain; charset=windows-1252;
 name="vmlinux.lds.S.diff.txt"
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 arch/parisc/kernel/vmlinux.lds.S |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index fa6f2b8..64a9998 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -50,8 +50,10 @@ SECTIONS
 	. = KERNEL_BINARY_TEXT_START;
 
 	_text = .;		/* Text and read-only data */
-	.text ALIGN(16) : {
+	.head ALIGN(16) : {
 		HEAD_TEXT
+	} = 0
+	.text ALIGN(16) : {
 		TEXT_TEXT
 		SCHED_TEXT
 		LOCK_TEXT
@@ -65,7 +67,7 @@ SECTIONS
 		*(.fixup)
 		*(.lock.text)		/* out-of-line lock text */
 		*(.gnu.warning)
-	} = 0
+	}
 	/* End of text section */
 	_etext = .;
 

--------------010900040001070703090800--
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Benjamin Herrenschmidt wrote:
> Thanks. These are all freescale platforms, the relevant people should be
> already but I've added Scott and Kumar to the CC list just in case.

Seeing how this is my code, I'd say the relevant people were not CC'd. :-)

Anyway, I think I see what the problem is, but it does appear when I use
the normal defconfigs.  What .config was being used?

-- 
Timur Tabi
Linux kernel developer at Freescale

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On Thu, May 17, 2012 at 12:30 PM, Timur Tabi <timur@freescale.com> wrot=
e:

> Anyway, I think I see what the problem is, but it does appear when I =
use
> the normal defconfigs. =A0What .config was being used?

I meant to say that it does NOT appear.

--=20
Timur Tabi
Linux kernel developer at Freescale
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On Thu, May 17, 2012 at 7:52 PM, Tabi Timur-B04825 <B04825@freescale.co=
m> wrote:
> On Thu, May 17, 2012 at 12:30 PM, Timur Tabi <timur@freescale.com> wr=
ote:
>
>> Anyway, I think I see what the problem is, but it does appear when I=
 use
>> the normal defconfigs. =C2=A0What .config was being used?
>
> I meant to say that it does NOT appear.

powerpc randconfig.

Gr{oetje,eeting}s,

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 =C2=A0=C2=A0 -- Linus Torvalds
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Benjamin Herrenschmidt wrote:
>   + arch/powerpc/platforms/512x/mpc512x_shared.c: error: 'enum
>> fsl_diu_monitor_port' declared inside parameter list [-Werror]:  =>
>> 70:9, 84:9, 88:36
>>   + arch/powerpc/platforms/512x/mpc512x_shared.c: error: 'return' with
>> a value, in function returning void [-Werror]:  => 189:2
>>   + arch/powerpc/platforms/512x/mpc512x_shared.c: error: function
>> declaration isn't a prototype [-Werror=strict-prototypes]:  => 69:5,
>> 88:6, 83:6, 187:1
>>   + arch/powerpc/platforms/512x/mpc512x_shared.c: error: its scope is
>> only this definition or declaration, which is probably not what you
>> want [-Werror]:  => 70:9

So I think I have a fix for these, but I still would like the actual
.config so that I can be sure.

>>   + drivers/virt/fsl_hypervisor.c: error: 'MSR_GS' undeclared (first
>> use in this function):  => 799:80

I can't reproduce this one.  MSR_GS is defined in reg_booke.h.
fsl_hypervisor.c should not be compiled on a non-booke platform.  I don't
know if the fix is to add this to fsl_hypervisor.c:

	#include <asm/reg_booke.h>

or if I should update the Kconfig:

config FSL_HV_MANAGER
	tristate "Freescale hypervisor management driver"
	depends on FSL_SOC

to

	depends on FSL_BOOKE

or maybe

	depends on FSL_BOOKE && FSL_SOC

-- 
Timur Tabi
Linux kernel developer at Freescale

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Geert Uytterhoeven wrote:
> powerpc randconfig

Doesn't this generate a different .config every time it's run?  Do I keep
generating random .config files until the problem shows up?

-- 
Timur Tabi
Linux kernel developer at Freescale

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On 05/17/2012 01:44 PM, Timur Tabi wrote:
> Geert Uytterhoeven wrote:
>> powerpc randconfig
> 
> Doesn't this generate a different .config every time it's run?  Do I keep
> generating random .config files until the problem shows up?
> 

Regardless of the config that shows this, the MSR[GS] check should go
away.  If you have a /hypervisor node, you already know you're a guest.

-Scott

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Scott Wood wrote:
> Regardless of the config that shows this, the MSR[GS] check should go
> away.  If you have a /hypervisor node, you already know you're a guest.

Fair enough.

-- 
Timur Tabi
Linux kernel developer at Freescale

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On 05/15/2012 10:48 PM, John David Anglin wrote:
> We need to debug why your B160L hangs.  Can you kill whatever hangs
> from the console?  Sometimes the application is still in the foreground.

Ok, the B160L problem is gone now.
I found the reason for this bug between the chair and the monitor :-)   
(it was my fault - sorry .... )

But I think we still have a problem.
I'm using 3.4.0-rc7, have pulled all fixes from James "fixes" branch, 
and Dave's "vmlinux.lds" patch.

The 32bit machines (715/64 and B160L) boot nicely into userspace.
The 64bit machine (C3000) crashes directly when switching to userspace.

Do we still have another problem somewhere?
Or is it introduced because of the vmlinux.lds patch?
(Reminder: without the vmlinux.lds patch the C3000 hangs directly at 
bootup after printing memory information...)

Helge

VFS: Mounted root (ext3 filesystem) readonly on device 8:3.
Freeing unused kernel memory: 316k freed
Backtrace:
  [<10119560>] clear_user_page_asm+0x44/0x6c
  [<101195dc>] clear_user_page+0x54/0x6c
  [<101bbaa8>] handle_pte_fault+0x5dc/0x7a8
  [<101bbd3c>] handle_mm_fault+0xc8/0x120
  [<101bbffc>] __get_user_pages+0x160/0x3c4
  [<101bc348>] get_user_pages+0x50/0x60
  [<101e169c>] get_arg_page+0x64/0xe8
  [<101e182c>] copy_strings+0x10c/0x248
  [<101e1990>] copy_strings_kernel+0x28/0x44
  [<101e328c>] do_execve+0x2a0/0x36c
  [<10120424>] sys_execve+0x44/0x7c
  [<10104084>] __execve+0x20/0x34
  [<10133b9c>] vprintk+0x1d8/0x4f4
  [<10133ee8>] printk+0x30/0x40
  [<10118550>] free_initmem+0x154/0x184
  [<10117cbc>] init_post+0xa0/0xd4


Kernel Fault: Code=26 regs=8fc30940 (Addr=0f2ff000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001110 Not tainted
r00-03  0006ff0e 00000040 10119560 8fc308c0
r04-07  106e5820 107d2000 0000000f 10768020
r08-11  ffeffff1 8fd00ffc 8f49ce40 00000001
r12-15  00000000 00000017 00000001 00000000
r16-19  00004400 00000020 00000000 ffffffff
r20-23  00000000 00000000 00000001 00000040
r24-27  1090aa40 ffeffff1 0000fa40 106e2020
r28-31  0f2ff000 0007d882 8fc30940 0007d024
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10100eec 10100ef0
  IIR: 0f801280    ISR: 00000000  IOR: 0f2ff000
  CPU:        0   CR30: 8fc30000 CR31: de9345e0
  ORIG_R28: 8f812728
  IAOQ[0]: __clear_user_page_asm+0x20/0x70
  IAOQ[1]: __clear_user_page_asm+0x24/0x70
  RP(r2): clear_user_page_asm+0x44/0x6c
Backtrace:
  [<10119560>] clear_user_page_asm+0x44/0x6c
  [<101195dc>] clear_user_page+0x54/0x6c
  [<101bbaa8>] handle_pte_fault+0x5dc/0x7a8
  [<101bbd3c>] handle_mm_fault+0xc8/0x120
  [<101bbffc>] __get_user_pages+0x160/0x3c4
  [<101bc348>] get_user_pages+0x50/0x60
  [<101e169c>] get_arg_page+0x64/0xe8
  [<101e182c>] copy_strings+0x10c/0x248
  [<101e1990>] copy_strings_kernel+0x28/0x44
  [<101e328c>] do_execve+0x2a0/0x36c
  [<10120424>] sys_execve+0x44/0x7c
  [<10104084>] __execve+0x20/0x34
  [<10133b9c>] vprintk+0x1d8/0x4f4
  [<10133ee8>] printk+0x30/0x40
  [<10118550>] free_initmem+0x154/0x184
  [<10117cbc>] init_post+0xa0/0xd4

Kernel panic - not syncing: Kernel Fault

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From - Thu Nov 08 21:08:20 2018
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
Date: Thu, 17 May 2012 21:57:20 +0200
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Cc: "John David Anglin" <dave.anglin@bell.net>,
	"James Bottomley" <james.bottomley@hansenpartnership.com>,
	"Vincent" <vincent.stehle@laposte.net>,
	linux-parisc@vger.kernel.org
To: "Helge Deller" <deller@gmx.de>
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> On 05/15/2012 10:48 PM, John David Anglin wrote:
>> We need to debug why your B160L hangs.  Can you kill whatever hangs
>> from the console?  Sometimes the application is still in the foreground.
>
> Ok, the B160L problem is gone now.
> I found the reason for this bug between the chair and the monitor :-)
> (it was my fault - sorry .... )
>
> But I think we still have a problem.
> I'm using 3.4.0-rc7, have pulled all fixes from James "fixes" branch,
> and Dave's "vmlinux.lds" patch.
>
> The 32bit machines (715/64 and B160L) boot nicely into userspace.
> The 64bit machine (C3000) crashes directly when switching to userspace.
>
> Do we still have another problem somewhere?
> Or is it introduced because of the vmlinux.lds patch?
> (Reminder: without the vmlinux.lds patch the C3000 hangs directly at
> bootup after printing memory information...)
>
> Helge
>
> VFS: Mounted root (ext3 filesystem) readonly on device 8:3.
> Freeing unused kernel memory: 316k freed
> Backtrace:
>   [<10119560>] clear_user_page_asm+0x44/0x6c
>   [<101195dc>] clear_user_page+0x54/0x6c
>   [<101bbaa8>] handle_pte_fault+0x5dc/0x7a8
>   [<101bbd3c>] handle_mm_fault+0xc8/0x120
>   [<101bbffc>] __get_user_pages+0x160/0x3c4
>   [<101bc348>] get_user_pages+0x50/0x60
>   [<101e169c>] get_arg_page+0x64/0xe8
>   [<101e182c>] copy_strings+0x10c/0x248
>   [<101e1990>] copy_strings_kernel+0x28/0x44
>   [<101e328c>] do_execve+0x2a0/0x36c
>   [<10120424>] sys_execve+0x44/0x7c
>   [<10104084>] __execve+0x20/0x34
>   [<10133b9c>] vprintk+0x1d8/0x4f4
>   [<10133ee8>] printk+0x30/0x40
>   [<10118550>] free_initmem+0x154/0x184
>   [<10117cbc>] init_post+0xa0/0xd4
>
>
> Kernel Fault: Code=26 regs=8fc30940 (Addr=0f2ff000)
>
>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001101111111100001110 Not tainted
> r00-03  0006ff0e 00000040 10119560 8fc308c0
> r04-07  106e5820 107d2000 0000000f 10768020
> r08-11  ffeffff1 8fd00ffc 8f49ce40 00000001
> r12-15  00000000 00000017 00000001 00000000
> r16-19  00004400 00000020 00000000 ffffffff
> r20-23  00000000 00000000 00000001 00000040
> r24-27  1090aa40 ffeffff1 0000fa40 106e2020
> r28-31  0f2ff000 0007d882 8fc30940 0007d024
> sr00-03  00000000 00000000 00000000 00000000
> sr04-07  00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 10100eec 10100ef0
>   IIR: 0f801280    ISR: 00000000  IOR: 0f2ff000
>   CPU:        0   CR30: 8fc30000 CR31: de9345e0
>   ORIG_R28: 8f812728
>   IAOQ[0]: __clear_user_page_asm+0x20/0x70
>   IAOQ[1]: __clear_user_page_asm+0x24/0x70
>   RP(r2): clear_user_page_asm+0x44/0x6c
> Backtrace:
>   [<10119560>] clear_user_page_asm+0x44/0x6c
>   [<101195dc>] clear_user_page+0x54/0x6c
>   [<101bbaa8>] handle_pte_fault+0x5dc/0x7a8

Looks basically as if we are back at the start, no? Because the initial
problem was only a few instructions away. So, did we change the 64 bit
assembly in any way?

Eike
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From - Thu Nov 08 21:08:20 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
Date: Fri, 18 May 2012 09:12:24 +0100
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Cc: John David Anglin <dave.anglin@bell.net>,
	Vincent <vincent.stehle@laposte.net>,
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	linux-parisc@vger.kernel.org
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On Thu, 2012-05-17 at 21:26 +0200, Helge Deller wrote:
> On 05/15/2012 10:48 PM, John David Anglin wrote:
> > We need to debug why your B160L hangs.  Can you kill whatever hangs
> > from the console?  Sometimes the application is still in the foreground.
> 
> Ok, the B160L problem is gone now.
> I found the reason for this bug between the chair and the monitor :-)   
> (it was my fault - sorry .... )
> 
> But I think we still have a problem.
> I'm using 3.4.0-rc7, have pulled all fixes from James "fixes" branch, 
> and Dave's "vmlinux.lds" patch.
> 
> The 32bit machines (715/64 and B160L) boot nicely into userspace.
> The 64bit machine (C3000) crashes directly when switching to userspace.
> 
> Do we still have another problem somewhere?
> Or is it introduced because of the vmlinux.lds patch?
> (Reminder: without the vmlinux.lds patch the C3000 hangs directly at 
> bootup after printing memory information...)

I'm not seeing it on my rp3410 ... I'm going to have to find the J box
(which I think is closest to your C3000 ... that's an astro system) and
boot it.

> Helge
> 
> VFS: Mounted root (ext3 filesystem) readonly on device 8:3.
> Freeing unused kernel memory: 316k freed
> Backtrace:
>   [<10119560>] clear_user_page_asm+0x44/0x6c
>   [<101195dc>] clear_user_page+0x54/0x6c
>   [<101bbaa8>] handle_pte_fault+0x5dc/0x7a8
>   [<101bbd3c>] handle_mm_fault+0xc8/0x120
>   [<101bbffc>] __get_user_pages+0x160/0x3c4
>   [<101bc348>] get_user_pages+0x50/0x60
>   [<101e169c>] get_arg_page+0x64/0xe8
>   [<101e182c>] copy_strings+0x10c/0x248
>   [<101e1990>] copy_strings_kernel+0x28/0x44
>   [<101e328c>] do_execve+0x2a0/0x36c
>   [<10120424>] sys_execve+0x44/0x7c
>   [<10104084>] __execve+0x20/0x34
>   [<10133b9c>] vprintk+0x1d8/0x4f4
>   [<10133ee8>] printk+0x30/0x40
>   [<10118550>] free_initmem+0x154/0x184
>   [<10117cbc>] init_post+0xa0/0xd4
> 
> 
> Kernel Fault: Code=26 regs=8fc30940 (Addr=0f2ff000)
> 
>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001101111111100001110 Not tainted
> r00-03  0006ff0e 00000040 10119560 8fc308c0
> r04-07  106e5820 107d2000 0000000f 10768020
> r08-11  ffeffff1 8fd00ffc 8f49ce40 00000001
> r12-15  00000000 00000017 00000001 00000000
> r16-19  00004400 00000020 00000000 ffffffff
> r20-23  00000000 00000000 00000001 00000040
> r24-27  1090aa40 ffeffff1 0000fa40 106e2020
> r28-31  0f2ff000 0007d882 8fc30940 0007d024
> sr00-03  00000000 00000000 00000000 00000000
> sr04-07  00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 10100eec 10100ef0
>   IIR: 0f801280    ISR: 00000000  IOR: 0f2ff000
>   CPU:        0   CR30: 8fc30000 CR31: de9345e0
>   ORIG_R28: 8f812728
>   IAOQ[0]: __clear_user_page_asm+0x20/0x70
>   IAOQ[1]: __clear_user_page_asm+0x24/0x70
>   RP(r2): clear_user_page_asm+0x44/0x6c
> Backtrace:
>   [<10119560>] clear_user_page_asm+0x44/0x6c
>   [<101195dc>] clear_user_page+0x54/0x6c
>   [<101bbaa8>] handle_pte_fault+0x5dc/0x7a8
>   [<101bbd3c>] handle_mm_fault+0xc8/0x120
>   [<101bbffc>] __get_user_pages+0x160/0x3c4
>   [<101bc348>] get_user_pages+0x50/0x60
>   [<101e169c>] get_arg_page+0x64/0xe8
>   [<101e182c>] copy_strings+0x10c/0x248
>   [<101e1990>] copy_strings_kernel+0x28/0x44
>   [<101e328c>] do_execve+0x2a0/0x36c
>   [<10120424>] sys_execve+0x44/0x7c
>   [<10104084>] __execve+0x20/0x34
>   [<10133b9c>] vprintk+0x1d8/0x4f4
>   [<10133ee8>] printk+0x30/0x40
>   [<10118550>] free_initmem+0x154/0x184
>   [<10117cbc>] init_post+0xa0/0xd4
> 
> Kernel panic - not syncing: Kernel Fault

What this says is something went wrong in the tmpalias space because it
fell through to the fault path.  How much memory does this system have
(and what's the layout map)?  It's 64 bit but you're booting it with a
32 bit kernel ... I'm wondering if there's no space for tmpalias.

James


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	Since "[PATCH] PA-RISC assembler cleanups and fixes" back in 2005,
(commit b6181a0a1999c7d4dd937d7f5234fb62eca68e89 in historical tree),
we do loop until all pending signals are dealt with.  Which is fine,
except that now we need to deal with syscall restart logics in all of
them.

	What happens if we have r28 containing e.g. -ERESTARTNOINTR
when we do a syscall?  Note that x86 analog of the code in parisc
syscall_restart() differs in one respect - the same register is used
for return value and syscall number.  So once we'd copied ->orig_ax
to ->ax, that's it - it *can't* be a restart-worthy value anymore,
since then we would've been in a syscall with negative syscall number
and ->ax before the assignment would've been -ENOSYS.  I.e. not a
restart-worthy value, so we wouldn't have hit that regs->ax = regs->orig_ax
in the first place.

	On parisc the counterpart of the above doesn't work; AFAICS,
we might have whatever we bloody please in r28 when we make a syscall.
Syscall number goes in r20, arguments are apparently in r26..r21.
Return value goes into r28.  Incidentally, why do we bother restoring
r28 on syscall restart at all?  Except for that mess with multiple
pending signals, the value we have in r28 on syscall entry doesn't
seem to affect the syscall behaviour...  Some HPUX compat fun?  But
AFAICS there calling conventions are also such that r28 on entry
doesn't affect anything...[1]

	Another fun question: what prevents syscall restarts on
rt_sigreturn()?  If original signal had been taken in syscall handler
we go through syscall_exit and that'll pass 1 as in_syscall to do_signal().
Are we relying on r28 in saved sigcontext never being restart-worthy,
seeing that we'd done syscall_restart()?  But that again relies on
->orig_r28 never containing such values; if it *did* contain one,
we are really screwed since on the path from rt_sigreturn() we'll have
->orig_r28 equal to r28 at the end of signal handler (not to mention
having moved back by twice the required amount - one time when we took
the original signal, another - now).

[1] FWIW, on other architectures the situation with restoring registers on
restarts looks so:
alpha		r0 (syscall number), r19 (arg4)
arm		r0 (arg1)
avr32		r12 (arg1)
bfin		p0 (syscall number), r0 (arg1)
c6x		a4 (arg1)
cris		r10 (arg1)
frv		gr8 (arg1)
h8300		er0 (syscall number)
hexagon		r06 (syscall number), r00 (arg1)
ia64		nothing
m32r		r0 (arg1)
m68k		d0 (syscall number)
microblaze	nothing
mips		r2 (syscall number), r7 (arg1)
mn10300		d0 (syscall number)
openrisc	r11 (syscall number)
parisc		r28
ppc		r3 (arg1)
s390		r2 (arg1)
score		r4 (syscall number), r7 (arg1)
sh		r0 or r9, depending on whether it's sh32 or sh4
sparc		i0 (arg1)
tile		r0 (arg1)
unicore32	r00 (arg1)
x86		[er]ax (syscall number)
xtensa		a2 (syscall number)
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On Fri, May 18, 2012 at 10:58 AM, Al Viro <viro@zeniv.linux.org.uk> wro=
te:
=2E..
>=A0Except for that mess with multiple
> pending signals, the value we have in r28 on syscall entry doesn't
> seem to affect the syscall behaviour... =A0Some HPUX compat fun?

We stopped trying to support HPUX compat support probably 8 or so
years ago. Since HP didn't care, no one else did either.  So no need
to consider it now.

thanks,
grant

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Subject: Re: [parisc] double restarts on multiple signal arrivals
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On Fri, May 18, 2012 at 11:05:46AM -0700, Grant Grundler wrote:
> On Fri, May 18, 2012 at 10:58 AM, Al Viro <viro@zeniv.linux.org.uk> wrote:
> ...
> >?Except for that mess with multiple
> > pending signals, the value we have in r28 on syscall entry doesn't
> > seem to affect the syscall behaviour... ?Some HPUX compat fun?
> 
> We stopped trying to support HPUX compat support probably 8 or so
> years ago. Since HP didn't care, no one else did either.  So no need
> to consider it now.

In any case, it doesn't look like something that might be HPUX-related -
there r28 is not used for arguments or syscall number either, as far
as I can tell...

That's a side story, in any case; whatever the reason for restoring
r28, it only masks the bug with double restarts.  If you enter syscall
with r28 equal to e.g. -ERESTARTNOINTR, get the same value from sys_whatever()
and have a couple of pending signals, you will have syscall_restart()
called twice, each time seeing regs->gr[28] == -ERESTARTNOINTR and leaving
it unchanged.  regs->gr[31] will be decremented by 8 on each of those
calls, first time back to your syscall (correctly), then to the entry point
of the first handler minus 8.
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From - Thu Nov 08 21:08:20 2018
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Subject: Re: [parisc] double restarts on multiple signal arrivals
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On Fri, May 18, 2012 at 11:05:46AM -0700, Grant Grundler wrote:
> On Fri, May 18, 2012 at 10:58 AM, Al Viro <viro@zeniv.linux.org.uk> wrote:
> ...
> >?Except for that mess with multiple
> > pending signals, the value we have in r28 on syscall entry doesn't
> > seem to affect the syscall behaviour... ?Some HPUX compat fun?
> 
> We stopped trying to support HPUX compat support probably 8 or so
> years ago. Since HP didn't care, no one else did either.  So no need
> to consider it now.

BTW, what should we put into the trampolines of subsequent sigframes
when we are building more that one?  I.e. suppose we are in a syscall
and see two signals.  We build a sigframe for the first one, with
r25 = 1, call rt_sigreturn() in it.  Return address of original syscall
is stored into sigcontext of that frame, our return address set to the
entry point of handler1.  Now we see the second signal and build another
sigframe.  That one will have the entry point of the first handler stored
in sigframe and we'll set the things up so that return to userland will
land us in the entry of handler2.  Fine, but... what should we have in r25
for rt_sigreturn() in the second trampoline?

We return to userland and find ourselves in the beginning of handler2.
It's executed and eventually we return from it.  We are at the beginning
of the second trampoline now.  rt_sigreturn() is called, restores the
registers from the second sigcontext and returns to userland.  We are at
the beginning of handler1.  It is executed and returns.  We are at the
beginning of the first trampoline.  rt_sigreturn() _there_ restores the
original registers from the first sigcontext and we finally return to the
insn right after the original syscall (or to the syscall itself if we
took a syscall restart).

That final rt_sigreturn() will go through syscall_exit; OK, no problem
with that.  But should the earlier one (done after return from handler2()
and landing us at the entry of handler1) go through syscall_exit or
through syscall_exit_rfi?
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+patofiero,anglin

On Fri, May 18, 2012 at 12:56 PM, Al Viro <viro@zeniv.linux.org.uk> wro=
te:
> On Fri, May 18, 2012 at 11:05:46AM -0700, Grant Grundler wrote:
>> On Fri, May 18, 2012 at 10:58 AM, Al Viro <viro@zeniv.linux.org.uk> =
wrote:
>> ...
>> >?Except for that mess with multiple
>> > pending signals, the value we have in r28 on syscall entry doesn't
>> > seem to affect the syscall behaviour... ?Some HPUX compat fun?
>>
>> We stopped trying to support HPUX compat support probably 8 or so
>> years ago. Since HP didn't care, no one else did either. =A0So no ne=
ed
>> to consider it now.
>
> BTW, what should we put into the trampolines of subsequent sigframes
> when we are building more that one?

Sorry - I only knew about the state of the HPUX support...Carlos and
Dave (and a few others) understand the syscall interface. I've include
them directly and hopefully they can respond soon.

cheers,
grant

> =A0I.e. suppose we are in a syscall
> and see two signals. =A0We build a sigframe for the first one, with
> r25 =3D 1, call rt_sigreturn() in it. =A0Return address of original s=
yscall
> is stored into sigcontext of that frame, our return address set to th=
e
> entry point of handler1. =A0Now we see the second signal and build an=
other
> sigframe. =A0That one will have the entry point of the first handler =
stored
> in sigframe and we'll set the things up so that return to userland wi=
ll
> land us in the entry of handler2. =A0Fine, but... what should we have=
 in r25
> for rt_sigreturn() in the second trampoline?
>
> We return to userland and find ourselves in the beginning of handler2=
=2E
> It's executed and eventually we return from it. =A0We are at the begi=
nning
> of the second trampoline now. =A0rt_sigreturn() is called, restores t=
he
> registers from the second sigcontext and returns to userland. =A0We a=
re at
> the beginning of handler1. =A0It is executed and returns. =A0We are a=
t the
> beginning of the first trampoline. =A0rt_sigreturn() _there_ restores=
 the
> original registers from the first sigcontext and we finally return to=
 the
> insn right after the original syscall (or to the syscall itself if we
> took a syscall restart).
>
> That final rt_sigreturn() will go through syscall_exit; OK, no proble=
m
> with that. =A0But should the earlier one (done after return from hand=
ler2()
> and landing us at the entry of handler1) go through syscall_exit or
> through syscall_exit_rfi?

From - Thu Nov 08 21:08:20 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: Re: [parisc] double restarts on multiple signal arrivals
Date: Fri, 18 May 2012 16:15:42 -0400
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Cc: Al Viro <viro@zeniv.linux.org.uk>,
	John David Anglin <dave.anglin@bell.net>,
	linux-parisc@vger.kernel.org,
	Linus Torvalds <torvalds@linux-foundation.org>,
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To: Grant Grundler <grantgrundler@gmail.com>
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On Fri, May 18, 2012 at 4:12 PM, Grant Grundler <grantgrundler@gmail.co=
m> wrote:
> +patofiero,anglin
>
> On Fri, May 18, 2012 at 12:56 PM, Al Viro <viro@zeniv.linux.org.uk> w=
rote:
>> On Fri, May 18, 2012 at 11:05:46AM -0700, Grant Grundler wrote:
>>> On Fri, May 18, 2012 at 10:58 AM, Al Viro <viro@zeniv.linux.org.uk>=
 wrote:
>>> ...
>>> >?Except for that mess with multiple
>>> > pending signals, the value we have in r28 on syscall entry doesn'=
t
>>> > seem to affect the syscall behaviour... ?Some HPUX compat fun?
>>>
>>> We stopped trying to support HPUX compat support probably 8 or so
>>> years ago. Since HP didn't care, no one else did either. =A0So no n=
eed
>>> to consider it now.
>>
>> BTW, what should we put into the trampolines of subsequent sigframes
>> when we are building more that one?
>
> Sorry - I only knew about the state of the HPUX support...Carlos and
> Dave (and a few others) understand the syscall interface. I've includ=
e
> them directly and hopefully they can respond soon.

I've hit "Mark as unread" twice on this thread now because I *am*
interested in this conversation.

However, I must confess that the original email reads like a rant
without a clear explanation of exactly what you think is wrong.

I'm familiar with the PARISC signal code because I worked on the
32/64-bit compat support for the frame layout, I also helped Randolph
work on the syscall restart logic.

What I don't understand is what's wrong with it now, and your subject
begins to hint at the problem.

Can you describe in more detail exactly what problem we need to solve?

Cheers,
Carlos.

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
Date: Fri, 18 May 2012 23:09:10 +0200
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Cc: John David Anglin <dave.anglin@bell.net>,
	Vincent <vincent.stehle@laposte.net>,
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	linux-parisc@vger.kernel.org
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On 05/18/2012 10:12 AM, James Bottomley wrote:
> On Thu, 2012-05-17 at 21:26 +0200, Helge Deller wrote:
>> But I think we still have a problem.
>> I'm using 3.4.0-rc7, have pulled all fixes from James "fixes" branch,
>> and Dave's "vmlinux.lds" patch.
>>
>> The 32bit machines (715/64 and B160L) boot nicely into userspace.
>> The 64bit machine (C3000) crashes directly when switching to userspace.
>>
>> Do we still have another problem somewhere?
>> Or is it introduced because of the vmlinux.lds patch?
>> (Reminder: without the vmlinux.lds patch the C3000 hangs directly at
>> bootup after printing memory information...)
> I'm not seeing it on my rp3410 ... I'm going to have to find the J box
> (which I think is closest to your C3000 ... that's an astro system) and
> boot it.
[crash log removed - new one see below]
> What this says is something went wrong in the tmpalias space because 
> it fell through to the fault path. How much memory does this system 
> have (and what's the layout map)? It's 64 bit but you're booting it 
> with a 32 bit kernel ... I'm wondering if there's no space for 
> tmpalias. James 

James, here is the full kernel log. Does this help?

---
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing...
This box can boot either 32 or 64-bit kernels...Only see a 32-bit 
kernel, using thatELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 6549504 mediaptr 0x1000
Segment 1 load 00788000 size 175988 mediaptr 0x640000
Segment 2 load 007b3000 size 144916 mediaptr 0x66b000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 3.4.0-rc7-32bit+ (deller@p100) (gcc version 4.6.4 20120514 
(prerelease) (GCC) ) #10 Thu May 17 21:12:16 CEST 2012
unwind_init: start = 0x10690000, end = 0x106d5170, entries = 17687
FP[0] enabled: Rev 1 Model 19
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005dc0 00000481 00000000 00000002 777c3e84 100000f0 00000008 
000000b2 000000b2
vers  00000301
CPUID vers 19 rev 11 (0x0000026b)
capabilities 0x7
model 9000/785/C3700
Total Memory: 2048 MB
LCD display at f05d0008,f05d0000 registered
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 520192
Kernel command line: HOME=/ root=/dev/sda3 pa64root=sda5 b160Lroot=sda5 
ip=bootp panic_timeout=60 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 4096 (order: 2, 16384 bytes)
Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 131072 (order: 7, 524288 bytes)
allocated 4194304 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
Memory: 2065896k/2097152k available (4404k kernel code, 31256k reserved, 
1969k data, 316k init)
virtual kernel memory layout:
     vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
     memory  : 0x10000000 - 0x90000000   (2048 MB)
       .init : 0x10788000 - 0x107d7000   ( 316 kB)
       .data : 0x1054d304 - 0x10739770   (1969 kB)
       .text : 0x10100000 - 0x1054d304   (4404 kB)
NR_IRQS:96
Console: colour dummy device 128x48
Calibrating delay loop... 1495.85 BogoMIPS (lpj=7479296)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys blkio
xor: measuring software checksum speed
    8regs     :  1822.000 MB/sec
    8regs_prefetch:  1798.400 MB/sec
    32regs    :  1443.600 MB/sec
    32regs_prefetch:  1442.800 MB/sec
xor: using function: 8regs (1822.000 MB/sec)
atomic64 test passed
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. Allegro W2 at 0xfffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
7. Memory at 0xfed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
Setting cache flush threshold to 1a0 (1 CPUs online)
SBA found Astro 2.1 at 0xfed00000
Elroy version TR4.0 (0x5) found at 0xfed30000
LBA 10:0: PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
pci_bus 0000:00: root bus resource [mem 0xf2000000-0xf23fffff]
PCI: Enabled native mode for NS87415 (pif=0x8f)
Elroy version TR4.0 (0x5) found at 0xfed32000
LBA 10:1: PCI host bridge to bus 0000:01
pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address 
[0x2000-0x3fff])
pci_bus 0000:01: root bus resource [mem 0xf6000000-0xf6ffffff]
pci_bus 0000:01: root bus resource [mem 0xf2400000-0xf27fffff]
pci 0000:01:04.0: no compatible bridge window for [mem 
0xf6000000-0xf7ffffff]
iosapic: no IRTE for 0000:01:04.0 (IRQ not connected?)
pci 0000:01:05.0: no compatible bridge window for [mem 
0xf8000000-0xf8ffffff pref]
iosapic: no IRTE for 0000:01:05.0 (IRQ not connected?)
pci 0000:01:06.0: PCI bridge to [bus 02-ff]
pci 0000:01:06.0: can't handle 64-bit address space for bridge
pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]
pci 0000:01:06.0: no compatible bridge window for [mem 
0xf9000000-0xfbffffff]
pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]
pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]
pci 0000:01:06.0: device not available (can't reserve [mem 
0xf9000000-0xfbffffff])
pci 0000:01:06.0: Error enabling bridge (-22), continuing
Elroy version TR4.0 (0x5) found at 0xfed38000
LBA 10:4: PCI host bridge to bus 0000:03
pci_bus 0000:03: root bus resource [io  0x28000-0x29fff] (bus address 
[0x8000-0x9fff])
pci_bus 0000:03: root bus resource [mem 0xf3000000-0xf33fffff]
Elroy version TR4.0 (0x5) found at 0xfed3c000
LBA 10:6: PCI host bridge to bus 0000:04
pci_bus 0000:04: root bus resource [io  0x3c000-0x3dfff] (bus address 
[0xc000-0xdfff])
pci_bus 0000:04: root bus resource [mem 0xf4000000-0xf5ffffff]
pci_bus 0000:04: root bus resource [mem 0xf3800000-0xf3bfffff]
iosapic: hpa not registered for 0000:04:02.0
powersw: Soft power switch at 0xf0400804 enabled.
bio: create slab <bio-0> at 0
raid6: int32x1    393 MB/s
raid6: int32x2    481 MB/s
raid6: int32x4    524 MB/s
raid6: int32x8    478 MB/s
raid6: using algorithm int32x4 (524 MB/s)
vgaarb: device added: PCI:0000:02:00.0,decodes=io+mem,owns=none,locks=none
vgaarb: loaded
vgaarb: bridge control possible 0000:02:00.0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Switching to clocksource cr16
NET: Registered protocol family 2
IP route cache hash table entries: 65536 (order: 6, 262144 bytes)
TCP established hash table entries: 262144 (order: 9, 2097152 bytes)
TCP bind hash table entries: 65536 (order: 8, 1310720 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP: reno registered
UDP hash table entries: 1024 (order: 3, 49152 bytes)
UDP-Lite hash table entries: 1024 (order: 3, 49152 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 67)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
Enabling PDC chassis warnings support v0.05
Initializing RT-Tester: OK
====[ backtrace testing ]===========
Testing a backtrace from process context.
The following trace is a kernel self test and not a bug!
Backtrace:
  [<10119bc8>] dump_stack+0x1c/0x2c
  [<1017d35c>] backtrace_regression_test+0x44/0x124
  [<10117f48>] do_one_initcall+0x258/0x2b8
  [<1078a208>] kernel_init+0x184/0x214
  [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a backtrace from irq context.
The following trace is a kernel self test and not a bug!
Backtrace:
  [<10119bc8>] dump_stack+0x1c/0x2c
  [<1017d2f8>] backtrace_test_irq_callback+0x18/0x38
  [<10139840>] tasklet_action+0x78/0xdc
  [<10139dd4>] __do_softirq+0x130/0x17c
  [<10139e90>] run_ksoftirqd+0x70/0x124
  [<101512f4>] kthread+0xac/0xb4
  [<1010405c>] ret_from_kernel_thread+0x1c/0x24

Testing a saved backtrace.
The following trace is a kernel self test and not a bug!
  [<101234b0>] save_stack_trace+0x28/0x60
  [<1017d408>] backtrace_regression_test+0xf0/0x124
  [<10117f48>] do_one_initcall+0x258/0x2b8
  [<1078a208>] kernel_init+0x184/0x214
  [<1010405c>] ret_from_kernel_thread+0x1c/0x24
  [<ffffffff>] 0xffffffff
====[ end of backtrace testing ]====
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
msgmni has been set to 4034
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
start plist test
end plist test
PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9a
sti 0000:01:04.0: device not available (can't reserve [mem 
0xf6000000-0xf7ffffff])
sti 0000:01:04.0: Cannot enable PCI device
sti: probe of 0000:01:04.0 failed with error -22
STI PCI graphic ROM found at f3800000 (2048 kB), fb at f4000000 (32 MB)
     id 35acda30-9a02587, conforms to spec rev. 8.0d
     graphics card name: A1262A
sticon: Initializing STI text console.
Console: switching to colour STI console 128x48
matroxfb 0000:02:00.0: enabling SERR and PARITY (0007 -> 0147)
matroxfb: Matrox G450 detected
PInS memtype = 4
matroxfb: cannot determine memory size
matroxfb: probe of 0000:02:00.0 failed with error -1
stifb: 'A1262A' (id: 0x35acda30) not supported.
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 3) is a 16550A
console [ttyS0] enabled, bootconsole disabled
console [ttyS0] enabled, bootconsole disabled
serial8250: ttyS1 at I/O 0x2f8 (irq = 4) is a 16550A
Linux agpgart interface v0.103
brd: module loaded
loop: module loaded
Uniform Multi-Platform E-IDE driver
ns87415 0000:00:0e.0: IDE controller (0x100b:0x0002 rev 0x03)
ns87415 0000:00:0e.0: 100% native mode on irq 7
     ide0: BM-DMA at 0x0a00-0x0a07
     ide1: BM-DMA at 0x0a08-0x0a0f
hda: CD-532E-B, ATAPI CD/DVD-ROM drive
ide0 at 0xf00-0xf07,0xe02 on irq 7
ide1 at 0xd00-0xd07,0xb02 on irq 7
ide-gd driver 1.18
ide-cd driver 5.00
ide-cd: hda: ATAPI 32X CD-ROM drive, 128kB Cache
cdrom: Uniform CD-ROM driver Revision: 3.20
sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 68
sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
sym0: SCSI BUS mode change from SE to SE.
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
sym1: <896> rev 0x7 at pci 0000:00:0f.1 irq 68
sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.2.3
scsi 1:0:5:0: Direct-Access     SEAGATE  ST39102LC        HP01 PQ: 0 ANSI: 2
scsi target1:0:5: tagged command queuing enabled, command queue depth 16.
scsi target1:0:5: Beginning Domain Validation
scsi target1:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 15)
scsi target1:0:5: Domain Validation skipping write tests
scsi target1:0:5: Ending Domain Validation
scsi 1:0:6:0: Direct-Access     HP 36.4G ST336607LC       HPC3 PQ: 0 ANSI: 3
scsi target1:0:6: tagged command queuing enabled, command queue depth 16.
scsi target1:0:6: Beginning Domain Validation
scsi target1:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
scsi target1:0:6: Domain Validation skipping write tests
scsi target1:0:6: Ending Domain Validation
st: Version 20101219, fixed bufsize 32768, s/g segs 256
sd 1:0:5:0: Attached scsi generic sg0 type 0
sd 1:0:6:0: Attached scsi generic sg1 type 0
Linux Tulip driver version 1.1.15 (Feb 27, 2007)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1
net eth0: Digital DS21142/43 Tulip rev 65 at Port 0x1000, 
00:30:6e:48:aa:64, IRQ 65
tulip1: EEPROM default media type Autosense
tulip1: Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block
tulip1: Index #1 - Media 10base2 (#1) described by a 21142 Serial PHY 
(2) block
tulip1: Index #2 - Media AUI (#2) described by a 21142 Serial PHY (2) block
tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101
sd 1:0:5:0: [sda] 17773524 512-byte logical blocks: (9.10 GB/8.47 GiB)
sd 1:0:6:0: [sdb] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
sd 1:0:5:0: [sda] Write Protect is off
sd 1:0:6:0: [sdb] Write Protect is off
net eth1: Digital DS21142/43 Tulip rev 33 at Port 0x28000, 
00:60:b0:7a:12:89, IRQ 71
LASI 82596 driver - Revision: 1.30
sd 1:0:5:0: [sda] Write cache: disabled, read cache: enabled, supports 
DPO and FUA
sd 1:0:6:0: [sdb] Write cache: disabled, read cache: enabled, supports 
DPO and FUA
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci_hcd 0000:00:0e.2: OHCI Host Controller
ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:0e.2: irq 1, io mem 0xf2007000
  sda: sda1 sda2 sda3 sda4
  sdb: sdb1 sdb2 sdb3 sdb4
usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: OHCI Host Controller
usb usb1: Manufacturer: Linux 3.4.0-rc7-32bit+ ohci_hcd
usb usb1: SerialNumber: 0000:00:0e.2
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
uhci_hcd: USB Universal Host Controller Interface driver
mousedev: PS/2 mouse device common for all mice
sd 1:0:6:0: [sdb] Attached SCSI disk
sd 1:0:5:0: [sda] Attached SCSI disk
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: raid10 personality registered for level 10
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
device-mapper: uevent: version 1.0.3
device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: 
dm-devel@redhat.com
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
oprofile: using timer interrupt.
TCP: cubic registered
NET: Registered protocol family 17
rtc-generic rtc-generic: setting system clock to 2012-05-18 21:06:15 UTC 
(1337375175)
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 192.168.178.50, my address is 
192.168.178.66
IP-Config: Complete:
      device=eth0, addr=192.168.178.66, mask=255.255.255.0, gw=192.168.178.1
      host=c3000, domain=box, nis-domain=(none)
      bootserver=192.168.178.50, rootserver=192.168.178.50, rootpath=
md: Waiting for all devices to be available before autodetect
md: If you don't use raid, use raid=noautodetect
md: Autodetecting RAID arrays.
md: Scanned 0 and added 0 devices.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs (sda3): mounted filesystem with writeback data mode
VFS: Mounted root (ext3 filesystem) readonly on device 8:3.
Freeing unused kernel memory: 316k freed
Backtrace:
  [<10119560>] clear_user_page_asm+0x44/0x6c
  [<101195dc>] clear_user_page+0x54/0x6c
  [<101bbaa8>] handle_pte_fault+0x5dc/0x7a8
  [<101bbd3c>] handle_mm_fault+0xc8/0x120
  [<101bbffc>] __get_user_pages+0x160/0x3c4
  [<101bc348>] get_user_pages+0x50/0x60
  [<101e169c>] get_arg_page+0x64/0xe8
  [<101e182c>] copy_strings+0x10c/0x248
  [<101e1990>] copy_strings_kernel+0x28/0x44
  [<101e328c>] do_execve+0x2a0/0x36c
  [<10120424>] sys_execve+0x44/0x7c
  [<10104084>] __execve+0x20/0x34
  [<10133b9c>] vprintk+0x1d8/0x4f4
  [<10133ee8>] printk+0x30/0x40
  [<10118550>] free_initmem+0x154/0x184
  [<10117cbc>] init_post+0xa0/0xd4


Kernel Fault: Code=26 regs=8fc30940 (Addr=0f2ff000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001110 Not tainted
r00-03  0006ff0e 00000040 10119560 8fc308c0
r04-07  106e5820 107d2000 0000000f 10768020
r08-11  ffeffff1 8f0aeffc 8f08ce40 00000001
r12-15  00000000 00000017 00000001 00000000
r16-19  00004400 00000020 00000000 ffffffff
r20-23  00000000 00000000 00000001 00000040
r24-27  1090aa40 ffeffff1 0000fa40 106e2020
r28-31  0f2ff000 0007d8a3 8fc30940 0007d045
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10100eec 10100ef0
  IIR: 0f801280    ISR: 00000000  IOR: 0f2ff000
  CPU:        0   CR30: 8fc30000 CR31: ffffffff
  ORIG_R28: 8f812728
  IAOQ[0]: __clear_user_page_asm+0x20/0x70
  IAOQ[1]: __clear_user_page_asm+0x24/0x70
  RP(r2): clear_user_page_asm+0x44/0x6c
Backtrace:
  [<10119560>] clear_user_page_asm+0x44/0x6c
  [<101195dc>] clear_user_page+0x54/0x6c
  [<101bbaa8>] handle_pte_fault+0x5dc/0x7a8
  [<101bbd3c>] handle_mm_fault+0xc8/0x120
  [<101bbffc>] __get_user_pages+0x160/0x3c4
  [<101bc348>] get_user_pages+0x50/0x60
  [<101e169c>] get_arg_page+0x64/0xe8
  [<101e182c>] copy_strings+0x10c/0x248
  [<101e1990>] copy_strings_kernel+0x28/0x44
  [<101e328c>] do_execve+0x2a0/0x36c
  [<10120424>] sys_execve+0x44/0x7c
  [<10104084>] __execve+0x20/0x34
  [<10133b9c>] vprintk+0x1d8/0x4f4
  [<10133ee8>] printk+0x30/0x40
  [<10118550>] free_initmem+0x154/0x184
  [<10117cbc>] init_post+0xa0/0xd4

Kernel panic - not syncing: Kernel Fault

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From - Thu Nov 08 21:08:21 2018
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From: Al Viro <viro@ZenIV.linux.org.uk>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: Re: [parisc] double restarts on multiple signal arrivals
Date: Fri, 18 May 2012 23:24:22 +0100
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Cc: Grant Grundler <grantgrundler@gmail.com>,
	John David Anglin <dave.anglin@bell.net>,
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	Linus Torvalds <torvalds@linux-foundation.org>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Fri, May 18, 2012 at 04:15:42PM -0400, Carlos O'Donell wrote:

> I've hit "Mark as unread" twice on this thread now because I *am*
> interested in this conversation.
> 
> However, I must confess that the original email reads like a rant
> without a clear explanation of exactly what you think is wrong.
> 
> I'm familiar with the PARISC signal code because I worked on the
> 32/64-bit compat support for the frame layout, I also helped Randolph
> work on the syscall restart logic.
> 
> What I don't understand is what's wrong with it now, and your subject
> begins to hint at the problem.
> 
> Can you describe in more detail exactly what problem we need to solve?

Sure.  Have e.g. read(2) on a pipe called when you happen to have -512 in
r28 and have two signals arrive at once while inside that read().  Both
with user handlers.  Both with SA_RESTART.

When we enter the kernel, we have pt_regs created on kernel stack and
filled with the values we had in registers.  Among other things, the
value of r28 is stored in regs->orig_r28.  Note that arguments and the
syscall number are all passed through other registers, so setting the
arguments for syscall did not overwrite the value we used to have in
r28.  It's still -512.

We find which C function to call (sys_read) and go there, with return
address set to syscall_exit.

sys_read() ends up calling pipe_read(), which finds pipe empty and goes
to sleep.  The signals arrive and pipe_read() is woken up.  It sees that
	* signal_pending() is true
	* nothing has been read yet
so it return -ERESTARSYS.  sys_read() returns what it got from pipe_read().

Now we are at syscall_exit.  We set r1 to pt_regs created on stack when
we entered the syscall.  Return value of sys_read() is taken from r28 and
stored into regs->gr[28].  We check TIF_NEED_RESCHED and it's not set.
We'd reached syscall_check_sig and check TIF_SIGPENDING, which is set.
We go through syscall_do_signal and reach the call of
do_notify_resume(regs, 1), which calls do_signal(regs, 1).

There we call get_signal_to_deliver() and get one of those two signals
dequeued and returned.  Note that TIF_SIGPENDING is still set - there is
the second signal left.  We got positive signr, so we do not leave the
loop yet.  in_syscall is 1, so we call syscall_restart().

We check regs->gr[28], which is -ERESTARTSYS.  SA_RESTART is set in
sa_flags, so we fall through to the next case, which is
                regs->gr[31] -= 8; /* delayed branching */
                /* Preserve original r28. */
                regs->gr[28] = regs->orig_r28;
Note that ERESTARTSYS is 512, so the second assignment does nothing - we
still have regs->gr[28] equal to -ERESTARTSYS.  We are done with
syscall_restart().

Now we call handle_signal(), which calls setup_rt_frame().  sigframe is
allocated on userland stack and filled accordingly to the contents of *regs.
No errors occured, so we set regs->gr[31] to entry point of signal handler,
regs->gr[2] to address of sigreturn trampoline we'd created in the sigframe,
regs->gr[26..24] to arguments of handler, and regs->gr[30] to new value of
userland stack pointer.

Back in handle_signal(), we adjust the set of blocked signals and return 1.
do_signal() sees that RESTORE_SIGMASK is not set and it's done - we return
to do_notify_resume() and from there back into entry.S.

We reload registers from pt_regs and go to syscall_check_sig again.  There
we reread the thread flags and see that SIGPENDING is still set - we have
another signal to deal with.  We hit do_notify_resume() and do_signal()
again.  And again, in_syscall is 1.

do_signal() gets the remaining pending signal from get_signal_to_deliver().
Again, we call syscall_restart().  And neither regs->gr[28] nor regs->orig_r28
has been changed, so we hit the same case.  Assignment to regs->gr[28] is
a no-op again.  But look what happened to regs->gr[31] - it got decremented
by 8.  So it points 8 bytes before the entry point of the first handler now.

We proceed to set the second sigframe up.  The registers are saved in
sigcontext, adjusted so that they correspond to the call of the second
handler with future return to the second trampoline and we return all the
way out to entry.S.  There we go to syscall_check_sig again, but this
time we have no pending signals left, so we reach syscall_restore and
proceed to userland.

Now we are in the second handler.  It's executed to the end and when it
returns, we go to the address we had in r2.  I.e. the second trampoline.
There we get r25 set to 1, r20 set to __NR_rt_sigreturn and we go to
execute the syscall.  Which restores the registers from sigcontext and,
since its in_syscall argument is 1, sets ->gr[31] to sc->sc_iaoq.  Which
had been set by setup_rt_sigcontext() from regs->gr[31] at the moment it
had been called, i.e. the entry point of the first handler decremented by 8.  
Then we proceed to return to userland.  And arrive there are the right
arguments for the first handler, but instruction pointer is 8 bytes too
early.  Bad things happen, obviously.

The point where the things go wrong is the second call of syscall_restart().
It should've done nothing.  We need to do syscall restarts only when building
the first sigframe.  And usually it does work out that way, simply because
the value you happened to have in r28 is probably not one of the 4 that
make syscall_restart() do things.  So after the first time around it does
nothing.  Very similar logics on x86 does, indeed, work in all cases.
There the register used for return values happens to be the same as we use
to pass syscall number, so you can't arrange a call of syscall_restart()
analog that would trigger restart *and* leave the return value register
unchanged - you'd need %eax to be -ERESTART<something> when you enter the
syscall and that would immediately result in regs->ax set to -ENOSYS.  I.e.
no restarts would be done.  However, on parisc that doesn't work - you can
start with r28 being -ERESTARTSYS and get -ERESTARTSYS from syscall.

And no, I don't have any good suggestions on how to fix it right now.  Depends
on how does gdb on parisc play with pt_regs, among other things...

Sorry if the original posting sounded like a rant - I'd spent the last month
crawling through the assembler glue around signal hanlding all over arch/*
and that probably affected the tone.  Definitely had been affecting the amount
of spoken obscenities lately...

From - Thu Nov 08 21:08:21 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: Re: [parisc] double restarts on multiple signal arrivals
Date: Fri, 18 May 2012 21:36:47 -0400
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Cc: Grant Grundler <grantgrundler@gmail.com>,
	John David Anglin <dave.anglin@bell.net>,
	linux-parisc@vger.kernel.org,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-arch@vger.kernel.org
To: Al Viro <viro@zeniv.linux.org.uk>
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On Fri, May 18, 2012 at 6:24 PM, Al Viro <viro@zeniv.linux.org.uk> wrot=
e:
> On Fri, May 18, 2012 at 04:15:42PM -0400, Carlos O'Donell wrote:
>
>> I've hit "Mark as unread" twice on this thread now because I *am*
>> interested in this conversation.
>>
>> However, I must confess that the original email reads like a rant
>> without a clear explanation of exactly what you think is wrong.
>>
>> I'm familiar with the PARISC signal code because I worked on the
>> 32/64-bit compat support for the frame layout, I also helped Randolp=
h
>> work on the syscall restart logic.
>>
>> What I don't understand is what's wrong with it now, and your subjec=
t
>> begins to hint at the problem.
>>
>> Can you describe in more detail exactly what problem we need to solv=
e?
>
> Sure. =A0Have e.g. read(2) on a pipe called when you happen to have -=
512 in
> r28 and have two signals arrive at once while inside that read(). =A0=
Both
> with user handlers. =A0Both with SA_RESTART.
>
> When we enter the kernel, we have pt_regs created on kernel stack and
> filled with the values we had in registers. =A0Among other things, th=
e
> value of r28 is stored in regs->orig_r28. =A0Note that arguments and =
the
> syscall number are all passed through other registers, so setting the
> arguments for syscall did not overwrite the value we used to have in
> r28. =A0It's still -512.
>
> We find which C function to call (sys_read) and go there, with return
> address set to syscall_exit.
>
> sys_read() ends up calling pipe_read(), which finds pipe empty and go=
es
> to sleep. =A0The signals arrive and pipe_read() is woken up. =A0It se=
es that
> =A0 =A0 =A0 =A0* signal_pending() is true
> =A0 =A0 =A0 =A0* nothing has been read yet
> so it return -ERESTARSYS. =A0sys_read() returns what it got from pipe=
_read().
>
> Now we are at syscall_exit. =A0We set r1 to pt_regs created on stack =
when
> we entered the syscall. =A0Return value of sys_read() is taken from r=
28 and
> stored into regs->gr[28]. =A0We check TIF_NEED_RESCHED and it's not s=
et.
> We'd reached syscall_check_sig and check TIF_SIGPENDING, which is set=
=2E
> We go through syscall_do_signal and reach the call of
> do_notify_resume(regs, 1), which calls do_signal(regs, 1).
>
> There we call get_signal_to_deliver() and get one of those two signal=
s
> dequeued and returned. =A0Note that TIF_SIGPENDING is still set - the=
re is
> the second signal left. =A0We got positive signr, so we do not leave =
the
> loop yet. =A0in_syscall is 1, so we call syscall_restart().
>
> We check regs->gr[28], which is -ERESTARTSYS. =A0SA_RESTART is set in
> sa_flags, so we fall through to the next case, which is
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0regs->gr[31] -=3D 8; /* delayed branch=
ing */
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/* Preserve original r28. */
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0regs->gr[28] =3D regs->orig_r28;
> Note that ERESTARTSYS is 512, so the second assignment does nothing -=
 we
> still have regs->gr[28] equal to -ERESTARTSYS. =A0We are done with
> syscall_restart().
>
> Now we call handle_signal(), which calls setup_rt_frame(). =A0sigfram=
e is
> allocated on userland stack and filled accordingly to the contents of=
 *regs.
> No errors occured, so we set regs->gr[31] to entry point of signal ha=
ndler,
> regs->gr[2] to address of sigreturn trampoline we'd created in the si=
gframe,
> regs->gr[26..24] to arguments of handler, and regs->gr[30] to new val=
ue of
> userland stack pointer.
>
> Back in handle_signal(), we adjust the set of blocked signals and ret=
urn 1.
> do_signal() sees that RESTORE_SIGMASK is not set and it's done - we r=
eturn
> to do_notify_resume() and from there back into entry.S.
>
> We reload registers from pt_regs and go to syscall_check_sig again. =A0=
There
> we reread the thread flags and see that SIGPENDING is still set - we =
have
> another signal to deal with. =A0We hit do_notify_resume() and do_sign=
al()
> again. =A0And again, in_syscall is 1.
>
> do_signal() gets the remaining pending signal from get_signal_to_deli=
ver().
> Again, we call syscall_restart(). =A0And neither regs->gr[28] nor reg=
s->orig_r28
> has been changed, so we hit the same case. =A0Assignment to regs->gr[=
28] is
> a no-op again. =A0But look what happened to regs->gr[31] - it got dec=
remented
> by 8. =A0So it points 8 bytes before the entry point of the first han=
dler now.
>
> We proceed to set the second sigframe up. =A0The registers are saved =
in
> sigcontext, adjusted so that they correspond to the call of the secon=
d
> handler with future return to the second trampoline and we return all=
 the
> way out to entry.S. =A0There we go to syscall_check_sig again, but th=
is
> time we have no pending signals left, so we reach syscall_restore and
> proceed to userland.
>
> Now we are in the second handler. =A0It's executed to the end and whe=
n it
> returns, we go to the address we had in r2. =A0I.e. the second trampo=
line.
> There we get r25 set to 1, r20 set to __NR_rt_sigreturn and we go to
> execute the syscall. =A0Which restores the registers from sigcontext =
and,
> since its in_syscall argument is 1, sets ->gr[31] to sc->sc_iaoq. =A0=
Which
> had been set by setup_rt_sigcontext() from regs->gr[31] at the moment=
 it
> had been called, i.e. the entry point of the first handler decremente=
d by 8.
> Then we proceed to return to userland. =A0And arrive there are the ri=
ght
> arguments for the first handler, but instruction pointer is 8 bytes t=
oo
> early. =A0Bad things happen, obviously.
>
> The point where the things go wrong is the second call of syscall_res=
tart().
> It should've done nothing. =A0We need to do syscall restarts only whe=
n building
> the first sigframe. =A0And usually it does work out that way, simply =
because
> the value you happened to have in r28 is probably not one of the 4 th=
at
> make syscall_restart() do things. =A0So after the first time around i=
t does
> nothing. =A0Very similar logics on x86 does, indeed, work in all case=
s.
> There the register used for return values happens to be the same as w=
e use
> to pass syscall number, so you can't arrange a call of syscall_restar=
t()
> analog that would trigger restart *and* leave the return value regist=
er
> unchanged - you'd need %eax to be -ERESTART<something> when you enter=
 the
> syscall and that would immediately result in regs->ax set to -ENOSYS.=
 =A0I.e.
> no restarts would be done. =A0However, on parisc that doesn't work - =
you can
> start with r28 being -ERESTARTSYS and get -ERESTARTSYS from syscall.
>
> And no, I don't have any good suggestions on how to fix it right now.=
 =A0Depends
> on how does gdb on parisc play with pt_regs, among other things...
>
> Sorry if the original posting sounded like a rant - I'd spent the las=
t month
> crawling through the assembler glue around signal hanlding all over a=
rch/*
> and that probably affected the tone. =A0Definitely had been affecting=
 the amount
> of spoken obscenities lately...

Thanks Al. This is description is a work of art, I wish all
reports looked like this. I'll go over this code tomorrow and
get back to you with my thoughts. I really appreciate the
thorough review.

Cheers,
Carlos.

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From: Al Viro <viro@ZenIV.linux.org.uk>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: Re: [parisc] double restarts on multiple signal arrivals
Date: Sat, 19 May 2012 06:26:23 +0100
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Cc: Grant Grundler <grantgrundler@gmail.com>,
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	Linus Torvalds <torvalds@linux-foundation.org>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Fri, May 18, 2012 at 11:24:22PM +0100, Al Viro wrote:

> And no, I don't have any good suggestions on how to fix it right now.  Depends
> on how does gdb on parisc play with pt_regs, among other things...

I think we might be able to cheat and pull off the following:
	* stop restoring r28 on restarts.  Behaviour of syscall should not
depend on the value of r28 at the moment we enter it and it does clobber
r28 in all cases - that's where the return value goes to, after all.  And
the instruction we are restarting would better be a syscall.
	* with that done, we can reuse ->orig_r28 for any purpose.  In
particular, we can use it as "no restarts allowed" flag.  Just have it set
to zero instead of r28 in linux_gateway_entry and hpux_gateway_page, then
in syscall_restart() and insert_restart_trampoline() check that
it's still 0, go away if it isn't and set it to 1 otherwise.  Set
it to 1 in sigreturn, to make it indifferent to what we might or might
not find in r28 stored in sigcontext (strictly speaking that's not needed,
but it's less brittle than relying on rather subtle properties of what
could end up in sigcontext and trampoline; the whole thing is a nice
example of how easily subtle things break and how long does that stay
unnoticed)

	Another potential solution would be a trick a-la MIPS, but you are
already using that slot in regs->gr[] for "is it a syscall" flag (psw for
interrupt, 0 for syscall) and touching that is very likely to end up with
very unhappy gdb...

So how about the following:

diff --git a/arch/parisc/hpux/gate.S b/arch/parisc/hpux/gate.S
index 38a1c1b..0114688 100644
--- a/arch/parisc/hpux/gate.S
+++ b/arch/parisc/hpux/gate.S
@@ -71,7 +71,7 @@ ENTRY(hpux_gateway_page)
 	STREG	%r26, TASK_PT_GR26(%r1)	 	/* 1st argument */
 	STREG	%r27, TASK_PT_GR27(%r1)		/* user dp */
 	STREG   %r28, TASK_PT_GR28(%r1)         /* return value 0 */
-	STREG   %r28, TASK_PT_ORIG_R28(%r1)     /* return value 0 (saved for signals) */
+	STREG   %r0, TASK_PT_ORIG_R28(%r1)     /* don't prohibit restarts */
 	STREG   %r29, TASK_PT_GR29(%r1)         /* 8th argument */
 	STREG	%r31, TASK_PT_GR31(%r1)		/* preserve syscall return ptr */
 	
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 12c1ed3..b4dd2c1 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -88,6 +88,7 @@ restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs)
 	err |= __copy_from_user(regs->iaoq, sc->sc_iaoq, sizeof(regs->iaoq));
 	err |= __copy_from_user(regs->iasq, sc->sc_iasq, sizeof(regs->iasq));
 	err |= __get_user(regs->sar, &sc->sc_sar);
+	regs->orig_r28 = 1; /* no restarts for sigreturn */
 	DBG(2,"restore_sigcontext: iaoq is 0x%#lx / 0x%#lx\n", 
 			regs->iaoq[0],regs->iaoq[1]);
 	DBG(2,"restore_sigcontext: r28 is %ld\n", regs->gr[28]);
@@ -471,6 +472,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
 static inline void
 syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
 {
+	if (regs->orig_r28)
+		return;
+	regs->orig_r28 = 1; /* no more restarts */
 	/* Check the return code */
 	switch (regs->gr[28]) {
 	case -ERESTART_RESTARTBLOCK:
@@ -493,8 +497,6 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
 		 * we have to do is fiddle the return pointer.
 		 */
 		regs->gr[31] -= 8; /* delayed branching */
-		/* Preserve original r28. */
-		regs->gr[28] = regs->orig_r28;
 		break;
 	}
 }
@@ -502,6 +504,9 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
 static inline void
 insert_restart_trampoline(struct pt_regs *regs)
 {
+	if (regs->orig_r28)
+		return;
+	regs->orig_r28 = 1; /* no more restarts */
 	switch(regs->gr[28]) {
 	case -ERESTART_RESTARTBLOCK: {
 		/* Restart the system call - no handlers present */
@@ -536,9 +541,6 @@ insert_restart_trampoline(struct pt_regs *regs)
 		flush_user_icache_range(regs->gr[30], regs->gr[30] + 4);
 
 		regs->gr[31] = regs->gr[30] + 8;
-		/* Preserve original r28. */
-		regs->gr[28] = regs->orig_r28;
-
 		return;
 	}
 	case -ERESTARTNOHAND:
@@ -550,9 +552,6 @@ insert_restart_trampoline(struct pt_regs *regs)
 		 * slot of the branch external instruction.
 		 */
 		regs->gr[31] -= 8;
-		/* Preserve original r28. */
-		regs->gr[28] = regs->orig_r28;
-
 		return;
 	}
 	default:
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 82a52b2..54a9cbf 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -156,7 +156,7 @@ linux_gateway_entry:
 	STREG	%r26, TASK_PT_GR26(%r1)	 	/* 1st argument */
 	STREG	%r27, TASK_PT_GR27(%r1)		/* user dp */
 	STREG   %r28, TASK_PT_GR28(%r1)         /* return value 0 */
-	STREG   %r28, TASK_PT_ORIG_R28(%r1)     /* return value 0 (saved for signals) */
+	STREG   %r0, TASK_PT_ORIG_R28(%r1)      /* don't prohibit restarts */
 	STREG	%r29, TASK_PT_GR29(%r1)		/* return value 1 */
 	STREG	%r31, TASK_PT_GR31(%r1)		/* preserve syscall return ptr */
 	

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From: Al Viro <viro@ZenIV.linux.org.uk>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: [parisc] double restarts on multiple signal arrivals
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On Sat, May 19, 2012 at 06:26:23AM +0100, Al Viro wrote:
> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
> index 12c1ed3..b4dd2c1 100644
> --- a/arch/parisc/kernel/signal.c
> +++ b/arch/parisc/kernel/signal.c
> @@ -88,6 +88,7 @@ restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs)
>  	err |= __copy_from_user(regs->iaoq, sc->sc_iaoq, sizeof(regs->iaoq));
>  	err |= __copy_from_user(regs->iasq, sc->sc_iasq, sizeof(regs->iasq));
>  	err |= __get_user(regs->sar, &sc->sc_sar);
> +	regs->orig_r28 = 1; /* no restarts for sigreturn */
>  	DBG(2,"restore_sigcontext: iaoq is 0x%#lx / 0x%#lx\n", 
>  			regs->iaoq[0],regs->iaoq[1]);
>  	DBG(2,"restore_sigcontext: r28 is %ld\n", regs->gr[28]);

... only that part should be done in sys_rt_sigreturn() instead, or we'll miss
it for 32bit-on-64bit case.

diff --git a/arch/parisc/hpux/gate.S b/arch/parisc/hpux/gate.S
index 38a1c1b..0114688 100644
--- a/arch/parisc/hpux/gate.S
+++ b/arch/parisc/hpux/gate.S
@@ -71,7 +71,7 @@ ENTRY(hpux_gateway_page)
 	STREG	%r26, TASK_PT_GR26(%r1)	 	/* 1st argument */
 	STREG	%r27, TASK_PT_GR27(%r1)		/* user dp */
 	STREG   %r28, TASK_PT_GR28(%r1)         /* return value 0 */
-	STREG   %r28, TASK_PT_ORIG_R28(%r1)     /* return value 0 (saved for signals) */
+	STREG   %r0, TASK_PT_ORIG_R28(%r1)     /* don't prohibit restarts */
 	STREG   %r29, TASK_PT_GR29(%r1)         /* 8th argument */
 	STREG	%r31, TASK_PT_GR31(%r1)		/* preserve syscall return ptr */
 	
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 12c1ed3..369b1c4 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -115,6 +115,8 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
 		(usp - sigframe_size);
 	DBG(2,"sys_rt_sigreturn: frame is %p\n", frame);
 
+	regs->orig_r28 = 1; /* no restarts for sigreturn */
+
 #ifdef CONFIG_64BIT
 	compat_frame = (struct compat_rt_sigframe __user *)frame;
 	
@@ -471,6 +473,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
 static inline void
 syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
 {
+	if (regs->orig_r28)
+		return;
+	regs->orig_r28 = 1; /* no more restarts */
 	/* Check the return code */
 	switch (regs->gr[28]) {
 	case -ERESTART_RESTARTBLOCK:
@@ -493,8 +498,6 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
 		 * we have to do is fiddle the return pointer.
 		 */
 		regs->gr[31] -= 8; /* delayed branching */
-		/* Preserve original r28. */
-		regs->gr[28] = regs->orig_r28;
 		break;
 	}
 }
@@ -502,6 +505,9 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
 static inline void
 insert_restart_trampoline(struct pt_regs *regs)
 {
+	if (regs->orig_r28)
+		return;
+	regs->orig_r28 = 1; /* no more restarts */
 	switch(regs->gr[28]) {
 	case -ERESTART_RESTARTBLOCK: {
 		/* Restart the system call - no handlers present */
@@ -536,9 +542,6 @@ insert_restart_trampoline(struct pt_regs *regs)
 		flush_user_icache_range(regs->gr[30], regs->gr[30] + 4);
 
 		regs->gr[31] = regs->gr[30] + 8;
-		/* Preserve original r28. */
-		regs->gr[28] = regs->orig_r28;
-
 		return;
 	}
 	case -ERESTARTNOHAND:
@@ -550,9 +553,6 @@ insert_restart_trampoline(struct pt_regs *regs)
 		 * slot of the branch external instruction.
 		 */
 		regs->gr[31] -= 8;
-		/* Preserve original r28. */
-		regs->gr[28] = regs->orig_r28;

From - Thu Nov 08 21:08:21 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc fixes for 3.3-rc5
Date: Sat, 19 May 2012 19:51:05 +0100
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Cc: Parisc List <linux-parisc@vger.kernel.org>,
	linux-kernel <linux-kernel@vger.kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>
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This is a set of three bug fixes that gets parisc running again on
systems with PA1.1 processors.  Two fix regressions introduced in 2.6.39
and one fixes a prefetch bug that only affects PA7300LC processors.  We
also have another pending fix to do with the sectional arrangement of
vmlinux.lds, but there's a query on it during testing on one particular
system type, so I'll hold off sending it in for now.

The patches are here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git parisc-fixes

The short changelog is:


James Bottomley (2):
      [PARISC] fix panic on prefetch(NULL) on PA7300LC
      [PARISC] fix PA1.1 oops on boot

John David Anglin (1):
      [PARISC] fix crash in flush_icache_page_asm on PA1.1


And the diffstat:

 arch/parisc/include/asm/prefetch.h |    7 ++++++-
 arch/parisc/kernel/entry.S         |    4 ++++
 arch/parisc/kernel/pacache.S       |   38 +++++++++++++++++++-----------------
 3 files changed, 30 insertions(+), 19 deletions(-)

With the full diff below

James

---

diff --git a/arch/parisc/include/asm/prefetch.h b/arch/parisc/include/asm/prefetch.h
index c5edc60..1ee7c82 100644
--- a/arch/parisc/include/asm/prefetch.h
+++ b/arch/parisc/include/asm/prefetch.h
@@ -21,7 +21,12 @@
 #define ARCH_HAS_PREFETCH
 static inline void prefetch(const void *addr)
 {
-	__asm__("ldw 0(%0), %%r0" : : "r" (addr));
+	__asm__(
+#ifndef CONFIG_PA20
+		/* Need to avoid prefetch of NULL on PA7300LC */
+		"	extrw,u,= %0,31,32,%%r0\n"
+#endif
+		"	ldw 0(%0), %%r0" : : "r" (addr));
 }
 
 /* LDD is a PA2.0 addition. */
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 6f05944..5350342 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -581,7 +581,11 @@
 	 */
 	cmpiclr,=	0x01,\tmp,%r0
 	ldi		(_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
+#ifdef CONFIG_64BIT
 	depd,z		\prot,8,7,\prot
+#else
+	depw,z		\prot,8,7,\prot
+#endif
 	/*
 	 * OK, it is in the temp alias region, check whether "from" or "to".
 	 * Check "subtle" note in pacache.S re: r23/r26.
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 93ff3d9..5d7218a 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -692,7 +692,7 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
-	pitlb		(%sr0,%r28)
+	pitlb		(%sr4,%r28)
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -706,27 +706,29 @@ ENTRY(flush_icache_page_asm)
 	sub		%r25, %r1, %r25
 
 
-1:      fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
-	fic,m		%r1(%r28)
+	/* fic only has the type 26 form on PA1.1, requiring an
+	 * explicit space specification, so use %sr4 */
+1:      fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
+	fic,m		%r1(%sr4,%r28)
 	cmpb,COND(<<)		%r28, %r25,1b
-	fic,m		%r1(%r28)
+	fic,m		%r1(%sr4,%r28)
 
 	sync
 	bv		%r0(%r2)
-	pitlb		(%sr0,%r25)
+	pitlb		(%sr4,%r25)
 	.exit
 
 	.procend


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From - Thu Nov 08 21:08:21 2018
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From: Al Viro <viro@ZenIV.linux.org.uk>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: [parisc] double restarts on multiple signal arrivals
Date: Sun, 20 May 2012 09:40:42 +0100
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	Linus Torvalds <torvalds@linux-foundation.org>,
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	BTW, after looking through the asm glue there, I've noticed something
rather odd.  *All* architectures other than parisc have the following thing
done on syscall entry:
	* check if we have TIF_SYSCALL_TRACE in flags; bugger off to slow
path if we do.
	* there check if we have PT_PTRACED in current->ptrace and if so
do the standard song and dance with raising SIGTRAP or SIGTRAP | 0x80,
etc.

parisc does that in the opposite order - it goes to slow path if
current->ptrace & PT_PTRACED is true.  The same actions with raising
SIGTRAP, etc. are done only if TIF_SYSCALL_TRACE is there as well,
but by that point we'd already plonked a bunch of registers on the
stack and we actually stay on the slow path even in absense of SYSCALL_TRACE.

The thing is, other architectures have a good reason for looking at
SYSCALL_TRACE first and not bothering with all that fun if it's not set.
PT_PTRACED is set when the task is being traced; it does *not* imply
stopping on every syscall entry.  E.g. a perfectly normal situation is
when in gdb you've said
break foo.c:69
cont
and let the process run until it hits that breakpoint.  It has PT_PTRACED
all along.  It will be stopped when it gets a signal, including SIGTRAP
we'll get when it steps on that breakpoint.  But by that time it's very
likely to have passed through tons of syscalls without stopping on any of
them.  SYSCALL_TRACE is set *only* when we want the process to stop on the
next syscall.  That's what strace(1) and friends are using.  So it doesn't
make sense to get overhead for all processes that have PT_PTRACED;
SYSCALL_TRACE is less likely, so checking it first is an obvious approach.

Moreover, checking PT_TRACED first is not even cheaper in the common case
(i.e. when branch to .Ltracesys is not taken at all).  As it is, parisc does
        mfctl   %cr30, %r1
        LDREG   TI_TASK(%r1),%r1
        ldw     TASK_PTRACE(%r1), %r1
        bb,<,n  %r1,31,.Ltracesys
and that's actually an extra dereference compared to
        mfctl   %cr30, %r1
        LDREG   TI_FLAGS(%r1),%r1
        bb,<,n  %r1,31 - TIF_SYSCALL_TRACE,.Ltracesys
Note that tracehook_report_syscall_entry/tracehook_report_syscall_exit
are checking PT_PTRACED, so it's not like we needed to change anything
other than that spot - resulting logics will be equivalent to what we
have right now.  Looks like a fairly straightforward optimisation...
Am I missing something subtle and parisc-specific here?
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From - Thu Nov 08 21:08:22 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: [parisc] double restarts on multiple signal arrivals
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On Sun, May 20, 2012 at 09:40:42AM +0100, Al Viro wrote:
> Moreover, checking PT_TRACED first is not even cheaper in the common case
> (i.e. when branch to .Ltracesys is not taken at all).  As it is, parisc does
>         mfctl   %cr30, %r1
>         LDREG   TI_TASK(%r1),%r1
>         ldw     TASK_PTRACE(%r1), %r1
>         bb,<,n  %r1,31,.Ltracesys
> and that's actually an extra dereference compared to
>         mfctl   %cr30, %r1
>         LDREG   TI_FLAGS(%r1),%r1
>         bb,<,n  %r1,31 - TIF_SYSCALL_TRACE,.Ltracesys
> Note that tracehook_report_syscall_entry/tracehook_report_syscall_exit
> are checking PT_PTRACED, so it's not like we needed to change anything
> other than that spot - resulting logics will be equivalent to what we
> have right now.  Looks like a fairly straightforward optimisation...
> Am I missing something subtle and parisc-specific here?

Actually, looks like I am missing something, but it's not particulary subtle.
SYSCALL_TRACE is needed for do_syscall_trace_enter() to do anything;
any of SYSCALL_TRACE/SINGLESTEP/BLOCKSTEP is makes do_syscall_trace_leave()
do things.  So checking one bit in flags is not enough - any of those 3 is
a reason for taking the slow path.  The point still stands, though -
	mfctl   %cr30, %r1
	LDREG   TI_FLAGS(%r1),%r1
	ldi	(_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_BLOCKSTEP), %r19
        and,COND(=) %r19, %r1, %r0
	b,n	.Ltracesys
would still be no worse on the fast path and would not hit the slow path in
a lot of cases when the current code does it for no apparent reason.

Comments?
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On Fri, 2012-05-18 at 23:09 +0200, Helge Deller wrote:
> James, here is the full kernel log. Does this help?

Yes and no: it shows clearly we got all the way through the initrd, so
we've gone through the alias region thousands of times doing flushes.

> Kernel Fault: Code=26 regs=8fc30940 (Addr=0f2ff000)
> 
It's an access rights trap, presumably on the alias tlb, since the
address is definitely in the alias region.  The obvious candidate is the
protection id deposit in do_alias

	depw,z		\prot,8,7,\prot

but that all checks out fine (you can compare it with
make_insert_tlb_11). So the page should have read, write and dirty set.

The interesting thing is that the only way to get an access rights trap
in the kernel is if the protection type is zero and I just can't see how
do_alias would zero out \prot in a way that functions on your C3000
(PA2.0) but not on the PA1.1 systems.

Are you sure this is booting the same kernel?

James


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From - Thu Nov 08 21:08:22 2018
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From - Thu Nov 08 21:08:22 2018
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From: John David Anglin <dave.anglin@bell.net>
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On 20-May-12, at 5:04 AM, Al Viro wrote:

> Actually, looks like I am missing something, but it's not  
> particulary subtle.
> SYSCALL_TRACE is needed for do_syscall_trace_enter() to do anything;
> any of SYSCALL_TRACE/SINGLESTEP/BLOCKSTEP is makes  
> do_syscall_trace_leave()
> do things.  So checking one bit in flags is not enough - any of  
> those 3 is
> a reason for taking the slow path.  The point still stands, though -
> 	mfctl   %cr30, %r1
> 	LDREG   TI_FLAGS(%r1),%r1
> 	ldi	(_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_BLOCKSTEP), %r19
>        and,COND(=) %r19, %r1, %r0
> 	b,n	.Ltracesys
> would still be no worse on the fast path and would not hit the slow  
> path in
> a lot of cases when the current code does it for no apparent reason.
>
> Comments?

This looks good to me.  There is similar code in entry.S.

I added the above change to my patch set for stable 3.3.6.  System still
boots.  I singled stepped /bin/ls through a directory listing and it  
seemed
to work.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On 05/20/2012 12:01 PM, James Bottomley wrote:
> On Fri, 2012-05-18 at 23:09 +0200, Helge Deller wrote:
>> James, here is the full kernel log. Does this help?
>
> Yes and no: it shows clearly we got all the way through the initrd, so
> we've gone through the alias region thousands of times doing flushes.
>
>> Kernel Fault: Code=26 regs=8fc30940 (Addr=0f2ff000)
>>
> It's an access rights trap, presumably on the alias tlb, since the
> address is definitely in the alias region.  The obvious candidate is the
> protection id deposit in do_alias
>
> 	depw,z		\prot,8,7,\prot
>
> but that all checks out fine (you can compare it with
> make_insert_tlb_11). So the page should have read, write and dirty set.
>
> The interesting thing is that the only way to get an access rights trap
> in the kernel is if the protection type is zero and I just can't see how
> do_alias would zero out \prot in a way that functions on your C3000
> (PA2.0) but not on the PA1.1 systems.
>
> Are you sure this is booting the same kernel?

Yes, since I use tftboot to deliver same vmlinux kernel to all my machines
for bootup.

Helge
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On Sun, 2012-05-20 at 21:11 +0200, Helge Deller wrote:
> On 05/20/2012 12:01 PM, James Bottomley wrote:
> > On Fri, 2012-05-18 at 23:09 +0200, Helge Deller wrote:
> >> James, here is the full kernel log. Does this help?
> >
> > Yes and no: it shows clearly we got all the way through the initrd, so
> > we've gone through the alias region thousands of times doing flushes.
> >
> >> Kernel Fault: Code=26 regs=8fc30940 (Addr=0f2ff000)
> >>
> > It's an access rights trap, presumably on the alias tlb, since the
> > address is definitely in the alias region.  The obvious candidate is the
> > protection id deposit in do_alias
> >
> > 	depw,z		\prot,8,7,\prot
> >
> > but that all checks out fine (you can compare it with
> > make_insert_tlb_11). So the page should have read, write and dirty set.
> >
> > The interesting thing is that the only way to get an access rights trap
> > in the kernel is if the protection type is zero and I just can't see how
> > do_alias would zero out \prot in a way that functions on your C3000
> > (PA2.0) but not on the PA1.1 systems.
> >
> > Are you sure this is booting the same kernel?
> 
> Yes, since I use tftboot to deliver same vmlinux kernel to all my machines
> for bootup.

The penny finally dropped on Dave's last comment.  The _20 path needs to
use wide instructions even though it's executing narrow code because we
have to use the PA2.0 tlb insertion instruction, so it's not
CONFIG_64BIT that's the differentiator, but which interruption path
we're on.

Does this fix it?

James

---

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 5350342..07ef351 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -552,7 +552,7 @@
 	 * entry (identifying the physical page) and %r23 up with
 	 * the from tlb entry (or nothing if only a to entry---for
 	 * clear_user_page_asm) */
-	.macro		do_alias	spc,tmp,tmp1,va,pte,prot,fault
+	.macro		do_alias	spc,tmp,tmp1,va,pte,prot,fault,patype
 	cmpib,COND(<>),n 0,\spc,\fault
 	ldil		L%(TMPALIAS_MAP_START),\tmp
 #if defined(CONFIG_64BIT) && (TMPALIAS_MAP_START >= 0x80000000)
@@ -581,11 +581,15 @@
 	 */
 	cmpiclr,=	0x01,\tmp,%r0
 	ldi		(_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
-#ifdef CONFIG_64BIT
+.ifc \patype,20
 	depd,z		\prot,8,7,\prot
-#else
+.else
+.ifc \patype,11
 	depw,z		\prot,8,7,\prot
-#endif
+.else
+	.error "undefined PA type to do_alias"
+.endif
+.endif
 	/*
 	 * OK, it is in the temp alias region, check whether "from" or "to".
 	 * Check "subtle" note in pacache.S re: r23/r26.
@@ -1189,7 +1193,7 @@ dtlb_miss_20w:
 	nop
 
 dtlb_check_alias_20w:
-	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault
+	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault,20
 
 	idtlbt          pte,prot
 
@@ -1213,7 +1217,7 @@ nadtlb_miss_20w:
 	nop
 
 nadtlb_check_alias_20w:
-	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate,20
 
 	idtlbt          pte,prot
 
@@ -1245,7 +1249,7 @@ dtlb_miss_11:
 	nop
 
 dtlb_check_alias_11:
-	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault
+	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault,11
 
 	idtlba          pte,(va)
 	idtlbp          prot,(va)
@@ -1277,7 +1281,7 @@ nadtlb_miss_11:
 	nop
 
 nadtlb_check_alias_11:
-	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate,11
 
 	idtlba          pte,(va)
 	idtlbp          prot,(va)
@@ -1304,7 +1308,7 @@ dtlb_miss_20:
 	nop
 
 dtlb_check_alias_20:
-	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault
+	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault,20
 	
 	idtlbt          pte,prot
 
@@ -1330,7 +1334,7 @@ nadtlb_miss_20:
 	nop
 
 nadtlb_check_alias_20:
-	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate,20
 
 	idtlbt          pte,prot
 
@@ -1457,7 +1461,7 @@ naitlb_miss_20w:
 	nop
 
 naitlb_check_alias_20w:
-	do_alias	spc,t0,t1,va,pte,prot,naitlb_fault
+	do_alias	spc,t0,t1,va,pte,prot,naitlb_fault,20
 
 	iitlbt		pte,prot
 
@@ -1511,7 +1515,7 @@ naitlb_miss_11:
 	nop
 
 naitlb_check_alias_11:
-	do_alias	spc,t0,t1,va,pte,prot,itlb_fault
+	do_alias	spc,t0,t1,va,pte,prot,itlb_fault,11
 
 	iitlba          pte,(%sr0, va)
 	iitlbp          prot,(%sr0, va)
@@ -1557,7 +1561,7 @@ naitlb_miss_20:
 	nop
 
 naitlb_check_alias_20:
-	do_alias	spc,t0,t1,va,pte,prot,naitlb_fault
+	do_alias	spc,t0,t1,va,pte,prot,naitlb_fault,20
 
 	iitlbt          pte,prot
 


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Subject: Re: [parisc] double restarts on multiple signal arrivals
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On Sun, May 20, 2012 at 2:46 PM, John David Anglin <dave.anglin@bell.ne=
t> wrote:
> On 20-May-12, at 5:04 AM, Al Viro wrote:
>
>> Actually, looks like I am missing something, but it's not particular=
y
>> subtle.
>> SYSCALL_TRACE is needed for do_syscall_trace_enter() to do anything;
>> any of SYSCALL_TRACE/SINGLESTEP/BLOCKSTEP is makes
>> do_syscall_trace_leave()
>> do things. =A0So checking one bit in flags is not enough - any of th=
ose 3 is
>> a reason for taking the slow path. =A0The point still stands, though=
 -
>> =A0 =A0 =A0 =A0mfctl =A0 %cr30, %r1
>> =A0 =A0 =A0 =A0LDREG =A0 TI_FLAGS(%r1),%r1
>> =A0 =A0 =A0 =A0ldi =A0 =A0 (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _=
TIF_BLOCKSTEP),
>> %r19
>> =A0 =A0 =A0 and,COND(=3D) %r19, %r1, %r0
>> =A0 =A0 =A0 =A0b,n =A0 =A0 .Ltracesys
>> would still be no worse on the fast path and would not hit the slow =
path
>> in
>> a lot of cases when the current code does it for no apparent reason.
>>
>> Comments?
>
>
> This looks good to me. =A0There is similar code in entry.S.
>
> I added the above change to my patch set for stable 3.3.6. =A0System =
still
> boots. =A0I singled stepped /bin/ls through a directory listing and i=
t seemed
> to work.

I'm running this through the ringer on my local system.

I'll send out an update when I'm done testing.

Cheers,
Carlos.

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On 05/20/2012 10:15 PM, James Bottomley wrote:
> On Sun, 2012-05-20 at 21:11 +0200, Helge Deller wrote:
>> On 05/20/2012 12:01 PM, James Bottomley wrote:
>>> On Fri, 2012-05-18 at 23:09 +0200, Helge Deller wrote:
>>>> James, here is the full kernel log. Does this help?
>>> Yes and no: it shows clearly we got all the way through the initrd, so
>>> we've gone through the alias region thousands of times doing flushes.
>>>
>>>> Kernel Fault: Code=26 regs=8fc30940 (Addr=0f2ff000)
>>>>
>>> It's an access rights trap, presumably on the alias tlb, since the
>>> address is definitely in the alias region.  The obvious candidate is the
>>> protection id deposit in do_alias
>>>
>>> 	depw,z		\prot,8,7,\prot
>>>
>>> but that all checks out fine (you can compare it with
>>> make_insert_tlb_11). So the page should have read, write and dirty set.
>>>
>>> The interesting thing is that the only way to get an access rights trap
>>> in the kernel is if the protection type is zero and I just can't see how
>>> do_alias would zero out \prot in a way that functions on your C3000
>>> (PA2.0) but not on the PA1.1 systems.
>>>
>>> Are you sure this is booting the same kernel?
>> Yes, since I use tftboot to deliver same vmlinux kernel to all my machines
>> for bootup.
> The penny finally dropped on Dave's last comment.  The _20 path needs to
> use wide instructions even though it's executing narrow code because we
> have to use the PA2.0 tlb insertion instruction, so it's not
> CONFIG_64BIT that's the differentiator, but which interruption path
> we're on.
>
> Does this fix it?
Yes, this fixed the crash. No segfaults at all on all my machines  :-)

C3000:~# uname -a
Linux c3000 3.4.0-rc7-32bit+ #11 Sun May 20 22:30:48 CEST 2012 parisc 
GNU/Linux

715/64:~# uname -a
Linux pa64 3.4.0-rc7-32bit+ #11 Sun May 20 22:30:48 CEST 2012 parisc 
GNU/Linux

B160L:~# uname -a
Linux b160 3.4.0-rc7-32bit+ #11 Sun May 20 22:30:48 CEST 2012 parisc 
GNU/Linux

REALLY COOL!

This is with
- Linus git head (which includes James "parisc-fixes" branch)
- with Daves vmlinux.lds.S patch
- and James PA 20 TLB-fix patch above.



Just to make sure, I just wanted to build the same kernel now for 64bit...
Sadly hppa64-ld crashes for me...

[deller@p100 linus-linux-2.6-64bit]$ gdb 
/opt/cross-hppa-4.6/bin/hppa64-linux-ld
GNU gdb (GDB) Fedora (7.3.1-48.fc15)
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /opt/cross-hppa-4.6/bin/hppa64-linux-ld...done.
(gdb) run --build-id -o .tmp_vmlinux2 -T arch/parisc/kernel/vmlinux.lds 
arch/parisc/kernel/head.o init/built-in.o --start-group usr/built-in.o 
arch/parisc/mm/built-in.o arch/parisc/kernel/built-in.o 
arch/parisc/math-emu/built-in.o arch/parisc/kernel/init_task.o 
kernel/built-in.o mm/built-in.o fs/built-in.o ipc/built-in.o 
security/built-in.o crypto/built-in.o block/built-in.o lib/lib.a 
arch/parisc/lib/lib.a `hppa64-linux-gcc -print-libgcc-file-name` 
lib/built-in.o arch/parisc/lib/built-in.o `hppa64-linux-gcc 
-print-libgcc-file-name` drivers/built-in.o sound/built-in.o 
firmware/built-in.o net/built-in.o --end-group .tmp_kallsyms1.o
Starting program: /opt/cross-hppa-4.6/bin/hppa64-linux-ld --build-id -o 
.tmp_vmlinux2 -T arch/parisc/kernel/vmlinux.lds 
arch/parisc/kernel/head.o init/built-in.o --start-group usr/built-in.o 
arch/parisc/mm/built-in.o arch/parisc/kernel/built-in.o 
arch/parisc/math-emu/built-in.o arch/parisc/kernel/init_task.o 
kernel/built-in.o mm/built-in.o fs/built-in.o ipc/built-in.o 
security/built-in.o crypto/built-in.o block/built-in.o lib/lib.a 
arch/parisc/lib/lib.a `hppa64-linux-gcc -print-libgcc-file-name` 
lib/built-in.o arch/parisc/lib/built-in.o `hppa64-linux-gcc 
-print-libgcc-file-name` drivers/built-in.o sound/built-in.o 
firmware/built-in.o net/built-in.o --end-group .tmp_kallsyms1.o
/opt/cross-hppa-4.6/bin/hppa64-linux-ld:
Program received signal SIGSEGV, Segmentation fault.
0x00000034d7a4a26e in vfprintf () from /lib64/libc.so.6
Missing separate debuginfos, use: debuginfo-install 
glibc-2.14.1-6.x86_64 zlib-1.2.5-6.fc15.x86_64
(gdb) bt
#0  0x00000034d7a4a26e in vfprintf () from /lib64/libc.so.6
#1  0x00000034d7a4b4f4 in buffered_vfprintf () from /lib64/libc.so.6
#2  0x00000034d7a4691e in vfprintf () from /lib64/libc.so.6
#3  0x0000000000425a2d in _bfd_default_error_handler (fmt=0x4c6ff3 
"+0xlx): cannot reach %s") at /mnt/sda4/home/cvs/binutils/bfd/bfd.c:727
#4  0x0000000000441de0 in elf_hppa_final_link_relocate (eh=0x773890, 
sym_sec=<optimized out>, info=0x6e8d00, value=<optimized out>, 
contents=0x2a624e0 "\b\003\002A\017\302\022\301\b\036\002Cs\301\002(+v 
", input_section=0x7627c8,
     output_bfd=0x705900, input_bfd=0x73e270, rel=0x7779e0) at 
/mnt/sda4/home/cvs/binutils/bfd/elf64-hppa.c:3276
#5  elf64_hppa_relocate_section (output_bfd=0x705900, info=0x6e8d00, 
input_bfd=0x73e270, input_section=0x7627c8, contents=0x2a624e0 
"\b\003\002A\017\302\022\301\b\036\002Cs\301\002(+v ", relocs=<optimized 
out>, local_syms=0x2d1b230,
     local_sections=0x2dec550) at 
/mnt/sda4/home/cvs/binutils/bfd/elf64-hppa.c:3930
#6  0x000000000046250f in elf_link_input_bfd (flinfo=0x7fffffffd910, 
input_bfd=0x73e270) at /mnt/sda4/home/cvs/binutils/bfd/elflink.c:9582
#7  0x0000000000463ff7 in bfd_elf_final_link (abfd=0x705900, 
info=0x6e8d00) at /mnt/sda4/home/cvs/binutils/bfd/elflink.c:10734
#8  0x000000000043f032 in elf64_hppa_final_link (abfd=0x705900, 
info=0x6e8d00) at /mnt/sda4/home/cvs/binutils/bfd/elf64-hppa.c:3028
#9  0x0000000000417e26 in ldwrite () at 
/mnt/sda4/home/cvs/binutils/ld/ldwrite.c:582
#10 0x0000000000402f9c in main (argc=33, argv=0x7fffffffdce8) at 
/mnt/sda4/home/cvs/binutils/ld/ldmain.c:420

this is with binutils CVS head (just pulled and compiled again), gcc 
from gcc-4.6 branch

Helge
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On 20-May-12, at 5:09 PM, Helge Deller wrote:

> Just to make sure, I just wanted to build the same kernel now for  
> 64bit...
> Sadly hppa64-ld crashes for me...

Please file a bug report ;(

I haven't tested binutils for some time...

Suggest using 2.22 branch for now.

Dave
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John David Anglin	dave.anglin@bell.net



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Hi,

I just received this email as it seems that hwdb@p-l.o is still an
alias for me, which prompts the following remarks: I haven't been
doing any work on the p-l hwdb in the past 5+ years I think so maybe
that alias could be better used otherwise, and I think that aside
pruning the stuff that spammers have put there, it might be useful to
make that website/database read-only... :-)

HTH,
T-Bone


---------- Forwarded message ----------
=46rom: Karl Magnus Kolstoe <karl.kolsto@uib.no>
Date: Mon, May 21, 2012 at 6:39 AM
Subject: Washing of machine owner database
To: hwdb@parisc-linux.org
Cc: Karl Magnus Kolstoe <karl.kolsto@uib.no>


Hi,

I had a quick look at the machine database and concluded that you
might want to wash your database a bit.

Have e.g a look at "Owners of this machine" on this page;
http://hwdb.parisc-linux.org/view.php?type=3Dmachine&name=3DK100

Just thought I should mention it.

Thanks
--
Karl Magnus Kolst=C3=B8 - Member of the first RFC 1149 implementation t=
eam.


--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On Mon, May 21, 2012 at 8:37 AM, Thibaut VARENE <T-Bone@parisc-linux.or=
g> wrote:
> Hi,
>
> I just received this email as it seems that hwdb@p-l.o is still an
> alias for me, which prompts the following remarks: I haven't been
> doing any work on the p-l hwdb in the past 5+ years I think so maybe
> that alias could be better used otherwise, and I think that aside
> pruning the stuff that spammers have put there, it might be useful to
> make that website/database read-only... :-)

Thanks Thibaut!

Personally, I'd just delete anything related to "owners" from the
website. I'm willing to do that if there are no objections. Initially
it was useful to know who had particular HW. Now we can just post here
to ask if someone can please test on the necessary HW (e.g. pa8800 or
Astro chipset or 712).

cheers,
grant

ps. Kudos to Karl for pointing out the abuse.

>
> HTH,
> T-Bone
>
>
> ---------- Forwarded message ----------
> From: Karl Magnus Kolstoe <karl.kolsto@uib.no>
> Date: Mon, May 21, 2012 at 6:39 AM
> Subject: Washing of machine owner database
> To: hwdb@parisc-linux.org
> Cc: Karl Magnus Kolstoe <karl.kolsto@uib.no>
>
>
> Hi,
>
> I had a quick look at the machine database and concluded that you
> might want to wash your database a bit.
>
> Have e.g a look at "Owners of this machine" on this page;
> http://hwdb.parisc-linux.org/view.php?type=3Dmachine&name=3DK100
>
> Just thought I should mention it.
>
> Thanks
> --
> Karl Magnus Kolst=F8 - Member of the first RFC 1149 implementation te=
am.
>
>
> --
> Thibaut VARENE
> http://www.parisc-linux.org/~varenet/
> --
> To unsubscribe from this list: send the line "unsubscribe linux-paris=
c" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at =A0http://vger.kernel.org/majordomo-info.html
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Someone with an HP K360 contacted me, looking for a way to give it to
somebody who could use it, preferably for Linux work.  It's a large
machine and expensive to ship, so ideally you'd be able to pick it up
in Bergen, Norway.

If you're interested, let me know and I can get you in touch with the owner.

Bjorn
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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On 05/20/2012 11:25 PM, John David Anglin wrote:
> On 20-May-12, at 5:09 PM, Helge Deller wrote:
>
>> Just to make sure, I just wanted to build the same kernel now for 
>> 64bit...
>> Sadly hppa64-ld crashes for me...
>
> Please file a bug report ;(

Ok, will do.

>
> I haven't tested binutils for some time...
>
> Suggest using 2.22 branch for now.

hppa64-linux-ld from 2.22 segfaults the same way.

Helge
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From: "Peter Gantner \(nephros\)" <gentoo@nephros.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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  This message is in MIME format.  The first part should be readable text,
  while the remaining parts are likely unreadable without MIME-aware tools.

---1463809792-503765717-1337762020=:26323
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Hodie XIII Kal. Iun. MMXII AUC quidam/qu=E6dam/quoddam 'Helge Deller' inqui=
t:

> On 05/20/2012 10:15 PM, James Bottomley wrote:
>> On Sun, 2012-05-20 at 21:11 +0200, Helge Deller wrote:
>>> On 05/20/2012 12:01 PM, James Bottomley wrote:
>>>> On Fri, 2012-05-18 at 23:09 +0200, Helge Deller wrote:
>>>>> James, here is the full kernel log. Does this help?
>>>> Yes and no: it shows clearly we got all the way through the initrd, so
>>>> we've gone through the alias region thousands of times doing flushes.
>>>>=20
>>>>> Kernel Fault: Code=3D26 regs=3D8fc30940 (Addr=3D0f2ff000)
>>>>>=20
>>>> It's an access rights trap, presumably on the alias tlb, since the
>>>> address is definitely in the alias region.  The obvious candidate is t=
he
>>>> protection id deposit in do_alias
>>>>
>>>> =09depw,z=09=09\prot,8,7,\prot
>>>>=20
>>>> but that all checks out fine (you can compare it with
>>>> make_insert_tlb_11). So the page should have read, write and dirty set=
=2E
>>>>=20
>>>> The interesting thing is that the only way to get an access rights tra=
p
>>>> in the kernel is if the protection type is zero and I just can't see h=
ow
>>>> do_alias would zero out \prot in a way that functions on your C3000
>>>> (PA2.0) but not on the PA1.1 systems.
>>>>=20
>>>> Are you sure this is booting the same kernel?
>>> Yes, since I use tftboot to deliver same vmlinux kernel to all my machi=
nes
>>> for bootup.
>> The penny finally dropped on Dave's last comment.  The _20 path needs to
>> use wide instructions even though it's executing narrow code because we
>> have to use the PA2.0 tlb insertion instruction, so it's not
>> CONFIG_64BIT that's the differentiator, but which interruption path
>> we're on.
>>=20
>> Does this fix it?
> Yes, this fixed the crash. No segfaults at all on all my machines  :-)

Just checking in to report that I did the same patch dance on my C180 (afte=
r
spending about a week on getting its ancient Gentoo installation up to date=
=2E
Many many thanks to whoever provides the binaries on tinderbox.dev.gentoo.o=
rg):

# uname -a
Linux hydralisk 3.4.0-rc7-hyT #11 Wed May 23 10:00:17 CEST 2012 parisc=20
PA8000 (PCX-U) 9000/780/C180 GNU/Linux

and these patches work here as well (also I get the same oopses without=20
them).

You can see all relevant files here:
https://public.nephros.org/~nephros/stuff/hppa/linux-2.6-d6c77973/

In addition after a suggestion by Mikulas I applied the NO_IRQ patch from h=
ere:
http://www.spinics.net/lists/linux-parisc/msg03894.html
and it did not seem to have adverse effect.

Let me know if I can test anything else.

On a side note, I get a warning while booting about RTC being registered, i=
n the dmesg here:
https://public.nephros.org/~nephros/stuff/hppa/linux-2.6-d6c77973/try4/
as well as some warnings during compile (don't have a log of them right now=
, sorry)

Is that something peculiar to my config, or is there something amiss in the=
 current source?

------------[ cut here ]------------
WARNING: at fs/proc/generic.c:586
Modules linked in:

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111 Not tainted
r00-03  0004000f 104c4800 101e100c 6ecc6940
r04-07  6fc05240 6ecc6b40 6ecc698d 6ecb52b8
r08-11  00000000 104fe000 104fe000 00000048
r12-15  10578b18 1055c45c 000000fd f0100000
r16-19  f000168c f000020c f0000204 104c4d38
r20-23  00000000 0000000a 102b6efc 102b7ab0
r24-27  ffffffff 00002358 104c4f88 104aa000
r28-31  00000035 000000b4 6fc2c5c0 102b8d28
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101e100c 101e1010
  IIR: 03ffe01f    ISR: 00000000  IOR: 00000000
  CPU:        0   CR30: 6fc2c000 CR31: ffffffff
  ORIG_R28: 10418800
  IAOQ[0]: proc_register+0x13c/0x190
  IAOQ[1]: proc_register+0x140/0x190
  RP(r2): proc_register+0x13c/0x190
Backtrace:
  [<101e10ec>] proc_create_data+0x8c/0xb4
  [<102ff488>] rtc_proc_add_device+0x30/0x3c
  [<102fd0d8>] rtc_device_register+0x1d8/0x264
  [<10555b78>] generic_rtc_probe+0x28/0x4c
  [<102c4adc>] platform_drv_probe+0x1c/0x28
  [<102c392c>] driver_probe_device+0xac/0x1c0
  [<102c3aa8>] __driver_attach+0x68/0x9c
  [<102c20f8>] bus_for_each_dev+0x60/0xa0
  [<102c2fac>] bus_add_driver+0xac/0x230
  [<102c3e80>] driver_register+0xa4/0x13c
  [<102c4e40>] platform_driver_probe+0x20/0x6c
  [<10112850>] do_one_initcall+0x180/0x24c
  [<10540ae4>] kernel_init+0x134/0x1fc
  [<1010305c>] ret_from_kernel_thread+0x1c/0x24

---[ end trace a48b844e905b2419 ]---

Best Wishes,
   Peter G.
---1463809792-503765717-1337762020=:26323--
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Issue booting v2.6.39 .. v3.4-rc6 on hp712/100
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To: Peter Gantner (nephros) <gentoo@nephros.org>
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I haven't seen the RTC problem.  I have the following RTC options in =20
my rp3440 config:

CONFIG_HP_SDC_RTC=3Dm

CONFIG_RTC_LIB=3Dy
CONFIG_RTC_CLASS=3Dy
CONFIG_RTC_HCTOSYS=3Dy
CONFIG_RTC_HCTOSYS_DEVICE=3D"rtc0"

CONFIG_RTC_INTF_SYSFS=3Dy
CONFIG_RTC_INTF_PROC=3Dy
CONFIG_RTC_INTF_DEV=3Dy

CONFIG_RTC_DRV_GENERIC=3Dy

Dave

On 23-May-12, at 4:47 AM, Peter Gantner (nephros) wrote:

> Hodie XIII Kal. Iun. MMXII AUC quidam/qu=E6dam/quoddam 'Helge Deller'=
 =20
> inquit:
>
>> On 05/20/2012 10:15 PM, James Bottomley wrote:
>>> On Sun, 2012-05-20 at 21:11 +0200, Helge Deller wrote:
>>>> On 05/20/2012 12:01 PM, James Bottomley wrote:
>>>>> On Fri, 2012-05-18 at 23:09 +0200, Helge Deller wrote:
>>>>>> James, here is the full kernel log. Does this help?
>>>>> Yes and no: it shows clearly we got all the way through the =20
>>>>> initrd, so
>>>>> we've gone through the alias region thousands of times doing =20
>>>>> flushes.
>>>>>> Kernel Fault: Code=3D26 regs=3D8fc30940 (Addr=3D0f2ff000)
>>>>> It's an access rights trap, presumably on the alias tlb, since th=
e
>>>>> address is definitely in the alias region.  The obvious =20
>>>>> candidate is the
>>>>> protection id deposit in do_alias
>>>>>
>>>>> 	depw,z		\prot,8,7,\prot
>>>>> but that all checks out fine (you can compare it with
>>>>> make_insert_tlb_11). So the page should have read, write and =20
>>>>> dirty set.
>>>>> The interesting thing is that the only way to get an access =20
>>>>> rights trap
>>>>> in the kernel is if the protection type is zero and I just can't =
=20
>>>>> see how
>>>>> do_alias would zero out \prot in a way that functions on your =20
>>>>> C3000
>>>>> (PA2.0) but not on the PA1.1 systems.
>>>>> Are you sure this is booting the same kernel?
>>>> Yes, since I use tftboot to deliver same vmlinux kernel to all my =
=20
>>>> machines
>>>> for bootup.
>>> The penny finally dropped on Dave's last comment.  The _20 path =20
>>> needs to
>>> use wide instructions even though it's executing narrow code =20
>>> because we
>>> have to use the PA2.0 tlb insertion instruction, so it's not
>>> CONFIG_64BIT that's the differentiator, but which interruption path
>>> we're on.
>>> Does this fix it?
>> Yes, this fixed the crash. No segfaults at all on all my =20
>> machines  :-)
>
> Just checking in to report that I did the same patch dance on my =20
> C180 (after
> spending about a week on getting its ancient Gentoo installation up =20
> to date.
> Many many thanks to whoever provides the binaries on =20
> tinderbox.dev.gentoo.org):
>
> # uname -a
> Linux hydralisk 3.4.0-rc7-hyT #11 Wed May 23 10:00:17 CEST 2012 =20
> parisc PA8000 (PCX-U) 9000/780/C180 GNU/Linux
>
> and these patches work here as well (also I get the same oopses =20
> without them).
>
> You can see all relevant files here:
> https://public.nephros.org/~nephros/stuff/hppa/linux-2.6-d6c77973/
>
> In addition after a suggestion by Mikulas I applied the NO_IRQ patch =
=20
> from here:
> http://www.spinics.net/lists/linux-parisc/msg03894.html
> and it did not seem to have adverse effect.
>
> Let me know if I can test anything else.
>
> On a side note, I get a warning while booting about RTC being =20
> registered, in the dmesg here:
> https://public.nephros.org/~nephros/stuff/hppa/linux-2.6-d6c77973/=20
> try4/
> as well as some warnings during compile (don't have a log of them =20
> right now, sorry)
>
> Is that something peculiar to my config, or is there something amiss =
=20
> in the current source?
>
> ------------[ cut here ]------------
> WARNING: at fs/proc/generic.c:586
> Modules linked in:
>
>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001111 Not tainted
> r00-03  0004000f 104c4800 101e100c 6ecc6940
> r04-07  6fc05240 6ecc6b40 6ecc698d 6ecb52b8
> r08-11  00000000 104fe000 104fe000 00000048
> r12-15  10578b18 1055c45c 000000fd f0100000
> r16-19  f000168c f000020c f0000204 104c4d38
> r20-23  00000000 0000000a 102b6efc 102b7ab0
> r24-27  ffffffff 00002358 104c4f88 104aa000
> r28-31  00000035 000000b4 6fc2c5c0 102b8d28
> sr00-03  00000000 00000000 00000000 00000000
> sr04-07  00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 101e100c 101e1010
> IIR: 03ffe01f    ISR: 00000000  IOR: 00000000
> CPU:        0   CR30: 6fc2c000 CR31: ffffffff
> ORIG_R28: 10418800
> IAOQ[0]: proc_register+0x13c/0x190
> IAOQ[1]: proc_register+0x140/0x190
> RP(r2): proc_register+0x13c/0x190
> Backtrace:
> [<101e10ec>] proc_create_data+0x8c/0xb4
> [<102ff488>] rtc_proc_add_device+0x30/0x3c
> [<102fd0d8>] rtc_device_register+0x1d8/0x264
> [<10555b78>] generic_rtc_probe+0x28/0x4c
> [<102c4adc>] platform_drv_probe+0x1c/0x28
> [<102c392c>] driver_probe_device+0xac/0x1c0
> [<102c3aa8>] __driver_attach+0x68/0x9c
> [<102c20f8>] bus_for_each_dev+0x60/0xa0
> [<102c2fac>] bus_add_driver+0xac/0x230
> [<102c3e80>] driver_register+0xa4/0x13c
> [<102c4e40>] platform_driver_probe+0x20/0x6c
> [<10112850>] do_one_initcall+0x180/0x24c
> [<10540ae4>] kernel_init+0x134/0x1fc
> [<1010305c>] ret_from_kernel_thread+0x1c/0x24
>
> ---[ end trace a48b844e905b2419 ]---
>
> Best Wishes,
>  Peter G.

--
John David Anglin	dave.anglin@bell.net



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On Fri, 25 May 2012, James Bottomley wrote:

> commit 8239c25f47d2b318156993b15f33900a86ea5e17 added an argument to our
> __cpu_up() function, but didn't notice we have an extra definition for
> this in asm/smp.h resulting in a compile failure.
> 
> Fix by removing the extraneous parisc definition of __cpu_up().  While
> we're at it, remove the duplicated definition of smp_send_reschedule().

Ooops. Sorry.

> James
> 
> ---
> 
> diff --git a/arch/parisc/include/asm/smp.h b/arch/parisc/include/asm/smp.h
> index e8f8037..a5dc906 100644
> --- a/arch/parisc/include/asm/smp.h
> +++ b/arch/parisc/include/asm/smp.h
> @@ -25,7 +25,6 @@ typedef unsigned long address_t;
>  #define cpu_number_map(cpu)	(cpu)
>  #define cpu_logical_map(cpu)	(cpu)
>  
> -extern void smp_send_reschedule(int cpu);
>  extern void smp_send_all_nop(void);
>  
>  extern void arch_send_call_function_single_ipi(int cpu);
> @@ -50,6 +49,5 @@ static inline void __cpu_die (unsigned int cpu) {
>    while(1)
>      ;
>  }
> -extern int __cpu_up (unsigned int cpu);
>  
>  #endif /*  __ASM_SMP_H */
> 
> 
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I'll queue this patch in our git repo.  It seems to work fine for us,
thanks, Dave!

Parisc people, I'm a bit worried about the #include <linux/sched.h> in
asm/uaccess.h ... I'm sure that's going to lead to complications later.
It's needed to get the dynamic TASK_SIZE, which expands through the task
structure to fill in user_addr_max() ... I'm thinking though that the
top of address space doesn't provide much protection on pa (since our
stack grows up towards it anyway, so we could just replace that with
~0UL ... what do people think?

James

---

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index ddb8b24..3ff21b5 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -18,6 +18,7 @@ config PARISC
 	select IRQ_PER_CPU
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_SMP_IDLE_THREAD
+	select GENERIC_STRNCPY_FROM_USER
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 9ac0660..d07eb50 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -8,6 +8,7 @@
 #include <asm/cache.h>
 #include <asm/errno.h>
 #include <asm-generic/uaccess-unaligned.h>
+#include <linux/sched.h>
 
 #define VERIFY_READ 0
 #define VERIFY_WRITE 1
@@ -218,15 +219,15 @@ struct exception_data {
 extern unsigned long lcopy_to_user(void __user *, const void *, unsigned long);
 extern unsigned long lcopy_from_user(void *, const void __user *, unsigned long);
 extern unsigned long lcopy_in_user(void __user *, const void __user *, unsigned long);
-extern long lstrncpy_from_user(char *, const char __user *, long);
+extern long strncpy_from_user(char *, const char __user *, long);
 extern unsigned lclear_user(void __user *,unsigned long);
 extern long lstrnlen_user(const char __user *,long);
-
 /*
  * Complex access routines -- macros
  */
+#define user_addr_max() \
+	(segment_eq(get_fs(), KERNEL_DS) ? ~0UL : TASK_SIZE)
 
-#define strncpy_from_user lstrncpy_from_user
 #define strnlen_user lstrnlen_user
 #define strlen_user(str) lstrnlen_user(str, 0x7fffffffL)
 #define clear_user lclear_user
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index a7bb757..ceec85d 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -44,7 +44,6 @@ EXPORT_SYMBOL(__cmpxchg_u64);
 #endif
 
 #include <asm/uaccess.h>
-EXPORT_SYMBOL(lstrncpy_from_user);
 EXPORT_SYMBOL(lclear_user);
 EXPORT_SYMBOL(lstrnlen_user);
 
diff --git a/arch/parisc/lib/lusercopy.S b/arch/parisc/lib/lusercopy.S
index 1bd23cc..6f2d935 100644
--- a/arch/parisc/lib/lusercopy.S
+++ b/arch/parisc/lib/lusercopy.S
@@ -61,47 +61,6 @@
 	.endm
 
 	/*
-	 * long lstrncpy_from_user(char *dst, const char *src, long n)
-	 *
-	 * Returns -EFAULT if exception before terminator,
-	 *         N if the entire buffer filled,
-	 *         otherwise strlen (i.e. excludes zero byte)
-	 */
-
-ENTRY(lstrncpy_from_user)
-	.proc
-	.callinfo NO_CALLS
-	.entry
-	comib,=     0,%r24,$lsfu_done
-	copy        %r24,%r23
-	get_sr
-1:      ldbs,ma     1(%sr1,%r25),%r1
-$lsfu_loop:
-	stbs,ma     %r1,1(%r26)
-	comib,=,n   0,%r1,$lsfu_done
-	addib,<>,n  -1,%r24,$lsfu_loop
-2:      ldbs,ma     1(%sr1,%r25),%r1
-$lsfu_done:
-	sub         %r23,%r24,%r28
-$lsfu_exit:
-	bv          %r0(%r2)
-	nop
-	.exit
-ENDPROC(lstrncpy_from_user)
-
-	.section .fixup,"ax"
-3:      fixup_branch $lsfu_exit
-	ldi         -EFAULT,%r28
-	.previous
-
-	.section __ex_table,"aw"
-	ASM_ULONG_INSN 1b,3b
-	ASM_ULONG_INSN 2b,3b
-	.previous
-
-	.procend

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Fri, 25 May 2012 14:59:52 +0100

> I'll queue this patch in our git repo.  It seems to work fine for us,
> thanks, Dave!
> 
> Parisc people, I'm a bit worried about the #include <linux/sched.h> in
> asm/uaccess.h ... I'm sure that's going to lead to complications later.
> It's needed to get the dynamic TASK_SIZE, which expands through the task
> structure to fill in user_addr_max() ... I'm thinking though that the
> top of address space doesn't provide much protection on pa (since our
> stack grows up towards it anyway, so we could just replace that with
> ~0UL ... what do people think?

Do what I did on Sparc wrt. TASK_SIZE, that way you won't need to
include linux/sched.h

The only reason you need linux/sched.h is to get
test_tsk_thread_flag(), for your TASK_SIZE_OF().

But that's completely pointless for TASK_SIZE which only needs to look
at the current thread's settings.

Thus if you use test_thread_flag() for TASK_SIZE, instead of trying to
borrow TASK_SIZE_OF()'s implementation, you'll no longer have this
linux/sched.h dependency.
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On Fri, 2012-05-25 at 16:16 -0400, David Miller wrote:
> From: James Bottomley <James.Bottomley@HansenPartnership.com>
> Date: Fri, 25 May 2012 14:59:52 +0100
> 
> > I'll queue this patch in our git repo.  It seems to work fine for us,
> > thanks, Dave!
> > 
> > Parisc people, I'm a bit worried about the #include <linux/sched.h> in
> > asm/uaccess.h ... I'm sure that's going to lead to complications later.
> > It's needed to get the dynamic TASK_SIZE, which expands through the task
> > structure to fill in user_addr_max() ... I'm thinking though that the
> > top of address space doesn't provide much protection on pa (since our
> > stack grows up towards it anyway, so we could just replace that with
> > ~0UL ... what do people think?
> 
> Do what I did on Sparc wrt. TASK_SIZE, that way you won't need to
> include linux/sched.h

Yes, we have all the machinery for a variable task_size, but we never
use it.

> The only reason you need linux/sched.h is to get
> test_tsk_thread_flag(), for your TASK_SIZE_OF().
> 
> But that's completely pointless for TASK_SIZE which only needs to look
> at the current thread's settings.
> 
> Thus if you use test_thread_flag() for TASK_SIZE, instead of trying to
> borrow TASK_SIZE_OF()'s implementation, you'll no longer have this
> linux/sched.h dependency.

Right, so we have thread_info in %cr30, but we still seem to be using a
vestigial struct thread_struct as well as a struct thread_info (so we
don't have all the info at the right level).  I'll code user_max_addr as

(segment_eq(get_fs(), USER_DS) ? TMP_TASK_SIZE : ~0UL)

And do TMP_TASK_SIZE as

(test_tsk_thread_flag(tsk,TIF_32BIT) ? DEFAULT_TASK_SIZE_32 :
DEFAULT_TASK_SIZE)

until we can get this sorted out properly (i.e. by removing task_size
from struct thread_struct)

James


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I'll queue this patch in our git repo.  It seems to work fine for us,
thanks, Dave!

v2: use test_thread_flag() for max addr determination instead of
tsk->thread.task_size

James

---

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index ddb8b24..3ff21b5 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -18,6 +18,7 @@ config PARISC
 	select IRQ_PER_CPU
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_SMP_IDLE_THREAD
+	select GENERIC_STRNCPY_FROM_USER
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 0e8b7b8..1419924 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -40,12 +40,16 @@
 #define DEFAULT_TASK_SIZE32	(0xFFF00000UL)
 #define DEFAULT_MAP_BASE32	(0x40000000UL)
 
+/* FIXME: remove task_size from current->thread and remove TMP_TASK_SIZE */
 #ifdef CONFIG_64BIT
 #define DEFAULT_TASK_SIZE       (MAX_ADDRESS-0xf000000)
 #define DEFAULT_MAP_BASE        (0x200000000UL)
+#define TMP_TASK_SIZE		(test_thread_flag(TIF_32BIT) ? \
+					DEFAULT_TASK_SIZE32 : DEFAULT_TASK_SIZE)
 #else
 #define DEFAULT_TASK_SIZE	DEFAULT_TASK_SIZE32
 #define DEFAULT_MAP_BASE	DEFAULT_MAP_BASE32
+#define TMP_TASK_SIZE		DEFAULT_TASK_SIZE32
 #endif
 
 #ifdef __KERNEL__
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 9ac0660..95e656b 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -5,6 +5,7 @@
  * User space memory access functions
  */
 #include <asm/page.h>
+#include <asm/pgtable.h>	/* for MAX_ADDRESS */
 #include <asm/cache.h>
 #include <asm/errno.h>
 #include <asm-generic/uaccess-unaligned.h>
@@ -218,15 +219,15 @@ struct exception_data {
 extern unsigned long lcopy_to_user(void __user *, const void *, unsigned long);
 extern unsigned long lcopy_from_user(void *, const void __user *, unsigned long);
 extern unsigned long lcopy_in_user(void __user *, const void __user *, unsigned long);
-extern long lstrncpy_from_user(char *, const char __user *, long);
+extern long strncpy_from_user(char *, const char __user *, long);
 extern unsigned lclear_user(void __user *,unsigned long);
 extern long lstrnlen_user(const char __user *,long);
-
 /*
  * Complex access routines -- macros
  */
+#define user_addr_max() \
+	(segment_eq(get_fs(), USER_DS) ? TMP_TASK_SIZE : ~0UL)
 
-#define strncpy_from_user lstrncpy_from_user
 #define strnlen_user lstrnlen_user
 #define strlen_user(str) lstrnlen_user(str, 0x7fffffffL)
 #define clear_user lclear_user
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index a7bb757..ceec85d 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -44,7 +44,6 @@ EXPORT_SYMBOL(__cmpxchg_u64);
 #endif
 
 #include <asm/uaccess.h>
-EXPORT_SYMBOL(lstrncpy_from_user);
 EXPORT_SYMBOL(lclear_user);
 EXPORT_SYMBOL(lstrnlen_user);
 
diff --git a/arch/parisc/lib/lusercopy.S b/arch/parisc/lib/lusercopy.S
index 1bd23cc..6f2d935 100644
--- a/arch/parisc/lib/lusercopy.S
+++ b/arch/parisc/lib/lusercopy.S
@@ -61,47 +61,6 @@
 	.endm
 
 	/*
-	 * long lstrncpy_from_user(char *dst, const char *src, long n)
-	 *
-	 * Returns -EFAULT if exception before terminator,
-	 *         N if the entire buffer filled,
-	 *         otherwise strlen (i.e. excludes zero byte)
-	 */
-
-ENTRY(lstrncpy_from_user)
-	.proc
-	.callinfo NO_CALLS
-	.entry
-	comib,=     0,%r24,$lsfu_done
-	copy        %r24,%r23
-	get_sr
-1:      ldbs,ma     1(%sr1,%r25),%r1
-$lsfu_loop:
-	stbs,ma     %r1,1(%r26)
-	comib,=,n   0,%r1,$lsfu_done
-	addib,<>,n  -1,%r24,$lsfu_loop
-2:      ldbs,ma     1(%sr1,%r25),%r1
-$lsfu_done:
-	sub         %r23,%r24,%r28
-$lsfu_exit:
-	bv          %r0(%r2)
-	nop
-	.exit
-ENDPROC(lstrncpy_from_user)
-
-	.section .fixup,"ax"
-3:      fixup_branch $lsfu_exit
-	ldi         -EFAULT,%r28
-	.previous
-
-	.section __ex_table,"aw"
-	ASM_ULONG_INSN 1b,3b
-	ASM_ULONG_INSN 2b,3b
-	.previous
-
-	.procend

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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: Re: [PATCH v2] update parisc to use generic strncpy_from_user()
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On Sat, May 26, 2012 at 4:48 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> I'll queue this patch in our git repo. =A0It seems to work fine for u=
s,
> thanks, Dave!
>
> v2: use test_thread_flag() for max addr determination instead of
> tsk->thread.task_size
>

Doesn't this seems like wasted instructions on the hot path? I fully
agree with you that on PA, where the stack grows up, there isn't
anything to run into up there.

On PA the failure case is still likely going to be one where you copy
all the way through the stack (which would appear valid to the kernel)
and fault on the first unmapped page and return -EFAULT.

I'd rather see a compile-time constant like you originally suggested.

Cheers,
Carlos.

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From: Yong Zhang <yong.zhang0@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [RFC PATCH 03/10] parisc: smp: remove call to ipi_call_lock()/ipi_call_unlock()
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From: Yong Zhang <yong.zhang@windriver.com>

1) call_function.lock used in smp_call_function_many() is just to protect
   call_function.queue and &data->refs, cpu_online_mask is outside of the
   lock. And it's not necessary to protect cpu_online_mask,
   because data->cpumask is pre-calculate and even if a cpu is brougt up
   when calling arch_send_call_function_ipi_mask(), it's harmless because
   validation test in generic_smp_call_function_interrupt() will take care
   of it.

2) For cpu down issue, stop_machine() will guarantee that no concurrent
   smp_call_fuction() is processing.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/smp.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index a47828d..6266730 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -300,9 +300,7 @@ smp_cpu_init(int cpunum)
 
 	notify_cpu_starting(cpunum);
 
-	ipi_call_lock();
 	set_cpu_online(cpunum, true);
-	ipi_call_unlock();
 
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);
-- 
1.7.5.4

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Hello,
Are you a good cleaner ( House cleaning) ,kindly reply if yes  cause i got an offer for you.

Regards
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On Mon, 2012-05-28 at 13:57 -0400, Carlos O'Donell wrote:
> On Sat, May 26, 2012 at 4:48 AM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> > I'll queue this patch in our git repo.  It seems to work fine for us,
> > thanks, Dave!
> >
> > v2: use test_thread_flag() for max addr determination instead of
> > tsk->thread.task_size
> >
> 
> Doesn't this seems like wasted instructions on the hot path? I fully
> agree with you that on PA, where the stack grows up, there isn't
> anything to run into up there.
> 
> On PA the failure case is still likely going to be one where you copy
> all the way through the stack (which would appear valid to the kernel)
> and fault on the first unmapped page and return -EFAULT.
> 
> I'd rather see a compile-time constant like you originally suggested.

OK, I'll modify it just to be ~0UL.

James


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This is a couple of updates to complete our fixes and one to fix a
compile failure caused during the merge window.  Additionally, we now
switch to the generic strncopy_from_user.

The update is available here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git parisc-misc

The short changelog is:

James Bottomley (3):
      [PARISC] update parisc to use generic strncpy_from_user()
      [PARISC] Fix parisc compile failure after smp: Add task_struct argument to __cpu_up()
      [PARISC] fix TLB fault path on PA2.0 narrow systems

John David Anglin (1):
      [PARISC] fix boot failure on 32-bit systems caused by branch stubs placed before .text

And the diffstat:

 arch/parisc/Kconfig               |    1 +
 arch/parisc/include/asm/smp.h     |    2 --
 arch/parisc/include/asm/uaccess.h |    5 ++---
 arch/parisc/kernel/entry.S        |   30 +++++++++++++++------------
 arch/parisc/kernel/parisc_ksyms.c |    1 -
 arch/parisc/kernel/vmlinux.lds.S  |    6 ++++--
 arch/parisc/lib/lusercopy.S       |   41 -------------------------------------
 7 files changed, 24 insertions(+), 62 deletions(-)

James


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From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 24/27] parisc, smpboot: Use generic SMP booting infrastructure
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Convert parisc to use the generic framework to boot secondary CPUs.

Notes:
1. The secondary cpu was being set in the cpu_online_mask way too early
when things aren't initialized fully yet. Postpone that.

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: David Howells <dhowells@redhat.com>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
---

 arch/parisc/kernel/smp.c |   30 ++++++++++++++----------------
 1 files changed, 14 insertions(+), 16 deletions(-)

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 6266730..a6199e2 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -32,6 +32,7 @@
 #include <linux/bitops.h>
 #include <linux/ftrace.h>
 #include <linux/cpu.h>
+#include <linux/smpboot.h>
 
 #include <linux/atomic.h>
 #include <asm/current.h>
@@ -280,8 +281,6 @@ static void __init
 smp_cpu_init(int cpunum)
 {
 	extern int init_per_cpu(int);  /* arch/parisc/kernel/processor.c */
-	extern void init_IRQ(void);    /* arch/parisc/kernel/irq.c */
-	extern void start_cpu_itimer(void); /* arch/parisc/kernel/time.c */
 
 	/* Set modes and Enable floating point coprocessor */
 	(void) init_per_cpu(cpunum);
@@ -297,10 +296,12 @@ smp_cpu_init(int cpunum)
 		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
 		machine_halt();
 	}
+}
 
-	notify_cpu_starting(cpunum);
-
-	set_cpu_online(cpunum, true);
+void __cpuinit __cpu_pre_online(void *unused)
+{
+	extern void init_IRQ(void);    /* arch/parisc/kernel/irq.c */
+	extern void start_cpu_itimer(void); /* arch/parisc/kernel/time.c */
 
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);
@@ -310,6 +311,9 @@ smp_cpu_init(int cpunum)
 
 	init_IRQ();   /* make sure no IRQs are enabled or pending */
 	start_cpu_itimer();
+
+	flush_cache_all_local(); /* start with known state */
+	flush_tlb_all_local(NULL);
 }
 
 
@@ -319,20 +323,14 @@ smp_cpu_init(int cpunum)
  */
 void __init smp_callin(void)
 {
+	smpboot_start_secondary(NULL);
+}
+
+void __cpuinit __cpu_pre_starting(void *unused)
+{
 	int slave_id = cpu_now_booting;
 
 	smp_cpu_init(slave_id);
-	preempt_disable();
-
-	flush_cache_all_local(); /* start with known state */
-	flush_tlb_all_local(NULL);
-
-	local_irq_enable();  /* Interrupts have been off until now */
-
-	cpu_idle();      /* Wait for timer to schedule some work */
-
-	/* NOTREACHED */
-	panic("smp_callin() AAAAaaaaahhhh....\n");
 }
 
 /*


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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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I was hoping that 3.5-rc1 would allow us to build perfectly.
Unfortunately, there were three compile breakages introduced in the last
few days of the merge window, so these are the three fixes

James Bottomley (3):
      fix missing TAINT_WARN problem
      fix compile break in use of lib/strncopy_from_user.c
      fix code to find libgcc

 arch/parisc/Makefile           |    3 ++-
 arch/parisc/include/asm/Kbuild |    1 +
 arch/parisc/include/asm/bug.h  |    2 ++
 3 files changed, 5 insertions(+), 1 deletions(-)


James


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>From ad71a7070fd5912420c443b020c6cf796518f3e9 Mon Sep 17 00:00:00 2001
From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Sun, 3 Jun 2012 01:49:32 -0700
Subject: fix missing TAINT_WARN problem

Al viro broke us with

commit edd63a2763bdae0daa4f0a4d4c5d61d1154352a5
Author: Al Viro <viro@zeniv.linux.org.uk>
Date:   Fri Apr 27 13:42:45 2012 -0400

    set_restore_sigmask() is never called without SIGPENDING (and never should be)

Although it's pretty much our fault since parisc's asm/bug.h uses
BUGWARN_TAINT but doesn't include the file that defines it.  Fix that.
---
 arch/parisc/include/asm/bug.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
index 72cfdb0..62a3333 100644
--- a/arch/parisc/include/asm/bug.h
+++ b/arch/parisc/include/asm/bug.h
@@ -1,6 +1,8 @@
 #ifndef _PARISC_BUG_H
 #define _PARISC_BUG_H
 
+#include <linux/kernel.h>	/* for BUGFLAG_TAINT */
+
 /*
  * Tell the user there is some problem.
  * The offending file and line are encoded in the __bug_table section.
-- 
1.7.4.1



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Linus broke us with

commit 36126f8f2ed8168eb13aa0662b9b9585cba100a9
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat May 26 10:43:17 2012 -0700

    word-at-a-time: make the interfaces truly generic

By moving functions defined in strncopy_from_user.c into the asm-geneic
version word-at-a-time.h.  Spark and OpenRisc were fixed to use this, but
not parisc.  Fix by adding to generic-y in asm/Kbuild
---
 arch/parisc/include/asm/Kbuild |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 19a434f..4383707 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -1,3 +1,4 @@
 include include/asm-generic/Kbuild.asm
 
 header-y += pdc.h
+generic-y += word-at-a-time.h
-- 
1.7.4.1



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Subject: [PATCH 3/3] fix code to find libgcc
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Sam broke this with

commit 1f2bfbd00e466ff3489b2ca5cc75b1cccd14c123
Author: Sam Ravnborg <sam@ravnborg.org>
Date:   Sat May 5 10:18:41 2012 +0200

    kbuild: link of vmlinux moved to a script

But we should be deriving the location of libgcc in the same way as all
the other archs, so fix by adding a LIBGCC variable which is evaluated
in the makefile
---
 arch/parisc/Makefile |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index dbc3850..5707f1a 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -21,6 +21,7 @@ KBUILD_DEFCONFIG := default_defconfig
 
 NM		= sh $(srctree)/arch/parisc/nm
 CHECKFLAGS	+= -D__hppa__=1
+LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 
 MACHINE		:= $(shell uname -m)
 ifeq ($(MACHINE),parisc*)
@@ -79,7 +80,7 @@ kernel-y			:= mm/ kernel/ math-emu/
 kernel-$(CONFIG_HPUX)		+= hpux/
 
 core-y	+= $(addprefix arch/parisc/, $(kernel-y))
-libs-y	+= arch/parisc/lib/ `$(CC) -print-libgcc-file-name`
+libs-y	+= arch/parisc/lib/ $(LIBGCC)
 
 drivers-$(CONFIG_OPROFILE)		+= arch/parisc/oprofile/
 
-- 
1.7.4.1



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From: Sam Ravnborg <sam@ravnborg.org>
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Subject: Re: [PATCH 3/3] fix code to find libgcc
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On Tue, Jun 05, 2012 at 01:54:09PM +0900, James Bottomley wrote:
> Sam broke this with
Soory!
> 
> commit 1f2bfbd00e466ff3489b2ca5cc75b1cccd14c123
> Author: Sam Ravnborg <sam@ravnborg.org>
> Date:   Sat May 5 10:18:41 2012 +0200
> 
>     kbuild: link of vmlinux moved to a script
> 
> But we should be deriving the location of libgcc in the same way as all
> the other archs, so fix by adding a LIBGCC variable which is evaluated
> in the makefile
It actually took me some time to realise why the formar approach was wrong.
It is still morning here..

Thanks for fixing this!

Acked-by: Sam Ravnborg <sam@ravnborg.org>

	Sam
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From: "Rolf Eike Beer" <eike-kernel@sf-tec.de>
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Linux version 3.4.1 (root@voyager) (gcc version 4.5.3 (Gentoo 4.5.3-r2
p1.5, pie-0.4.7) ) #1 Wed Jun 6 14:15:43 CEST 2012
unwind_init: start = 0x1044e000, end = 0x1047faf0, entries = 12719
FP[0] enabled: Rev 3 Model 0
The 32-bit Kernel has started...
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: Snake.
model 00003020 00000481 00000000 00000000 77aac223 ffffffff 00000004
0000000d 00000000
vers  00000003
model 9000/705
Total Memory: 64 MB
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
swapper (pid 0): Protection id trap (code 7)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110 Not tainted
r00-03  0004000e 0004000e 1050104c 00000000
r04-07  00000001 104841cc 1048e000 104917b8
r08-11  104917d4 1048e024 00000000 00100000
r12-15  00004000 00000000 00537fff 104b58c8
r16-19  104ec800 00004000 1048e000 0000000e
r20-23  00000000 00000000 00000000 00000000
r24-27  00000001 00000000 00000000 1048e000
r28-31  00000000 00000000 10484280 00000000
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1010077c 10100780
 IIR: e840c000    ISR: 00000000  IOR: 1050104c
 CPU:        0   CR30: 10484000 CR31: 000000e0
 ORIG_R28: 00000000
 IAOQ[0]: .L21+0x0/0x8
 IAOQ[1]: .L21+0x4/0x8
 RP(r2): paging_init+0x788/0x824
Backtrace:
 [<1050104c>] paging_init+0x788/0x824
 [<10501688>] setup_arch+0x5c/0x88
 [<104fd8d0>] start_kernel+0x80/0x370
 [<1010f218>] start_parisc+0x4c/0x68

Backtrace:
 [<1010f940>] die_if_kernel+0x138/0x1b0
 [<10110094>] handle_interruption+0x46c/0x614
 [<10104078>] intr_check_sig+0x0/0x34
 [<10100780>] .L21+0x4/0x8

---[ end trace 139ce121c98e96c9 ]---
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
swapper (pid 0): Protection id trap (code 7)
die_if_kernel() recursion detected.

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From - Thu Nov 08 21:08:26 2018
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This is a set of three bug fixes for minor build breakages that got
introduced just before 3.4-rc1 was released.

The patches are here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git parisc-fixes

The short changelog is:

James Bottomley (3):
      fix code to find libgcc
      fix compile break in use of lib/strncopy_from_user.c
      fix missing TAINT_WARN problem

And the diffstat

 arch/parisc/Makefile           |    3 ++-
 arch/parisc/include/asm/Kbuild |    1 +
 arch/parisc/include/asm/bug.h  |    2 ++
 3 files changed, 5 insertions(+), 1 deletion(-)

Full diff is below.

James

---

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index dbc3850..5707f1a 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -21,6 +21,7 @@ KBUILD_DEFCONFIG := default_defconfig
 
 NM		= sh $(srctree)/arch/parisc/nm
 CHECKFLAGS	+= -D__hppa__=1
+LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 
 MACHINE		:= $(shell uname -m)
 ifeq ($(MACHINE),parisc*)
@@ -79,7 +80,7 @@ kernel-y			:= mm/ kernel/ math-emu/
 kernel-$(CONFIG_HPUX)		+= hpux/
 
 core-y	+= $(addprefix arch/parisc/, $(kernel-y))
-libs-y	+= arch/parisc/lib/ `$(CC) -print-libgcc-file-name`
+libs-y	+= arch/parisc/lib/ $(LIBGCC)
 
 drivers-$(CONFIG_OPROFILE)		+= arch/parisc/oprofile/
 
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 19a434f..4383707 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -1,3 +1,4 @@
 include include/asm-generic/Kbuild.asm
 
 header-y += pdc.h
+generic-y += word-at-a-time.h
diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
index 72cfdb0..62a3333 100644
--- a/arch/parisc/include/asm/bug.h
+++ b/arch/parisc/include/asm/bug.h
@@ -1,6 +1,8 @@
 #ifndef _PARISC_BUG_H
 #define _PARISC_BUG_H
 
+#include <linux/kernel.h>	/* for BUGFLAG_TAINT */
+
 /*
  * Tell the user there is some problem.
  * The offending file and line are encoded in the __bug_table section.




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On Thu, Jun 07, 2012 at 02:38:13PM +0900, James Bottomley wrote:
> This is a set of three bug fixes for minor build breakages that got
> introduced just before 3.4-rc1 was released.

3.4-rc1 or 3.5-rc1?  I ask as if this is 3.4-rc1, these should go to the
stable tree, right?

greg k-h

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [GIT PULL] parisc fixes for 3.4-rc1
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On Thu, 2012-06-07 at 14:52 +0900, Greg KH wrote:
> On Thu, Jun 07, 2012 at 02:38:13PM +0900, James Bottomley wrote:
> > This is a set of three bug fixes for minor build breakages that got
> > introduced just before 3.4-rc1 was released.
> 
> 3.4-rc1 or 3.5-rc1?  I ask as if this is 3.4-rc1, these should go to the
> stable tree, right?

Sorry, mislabel ... it's 3.5-rc1 ... they all fix breaks that were
introduced within the last week, so no need for a stable backport.

James


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From - Thu Nov 08 21:08:26 2018
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From: Paul Bolle <pebolle@tiscali.nl>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH] parisc: remove unused and empty header
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Nothing includes real.h. That's unsurprising, since it's basically
empty. This has apparently been the case since (at least) v2.6.12-rc2.
It can safely be removed.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
---
Tested only by prodding at the (history of the) tree with various git commands.

 arch/parisc/include/asm/real.h |    5 -----
 1 files changed, 0 insertions(+), 5 deletions(-)
 delete mode 100644 arch/parisc/include/asm/real.h

diff --git a/arch/parisc/include/asm/real.h b/arch/parisc/include/asm/real.h
deleted file mode 100644
index 82acb25..0000000
--- a/arch/parisc/include/asm/real.h
+++ /dev/null
@@ -1,5 +0,0 @@
-#ifndef _PARISC_REAL_H
-#define _PARISC_REAL_H
-
-
-#endif
-- 
1.7.7.6


From - Thu Nov 08 21:08:26 2018
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Cc: linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org
To: "James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>
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Nothing uses compat_rt_sigframe.h anymore. Commit
f671c45df23005692daa200aba768c642fb14ef2 ("[PARISC] Arch-specific compat
signals") removed all includes of that header. It also basically copied
that entire header verbatim into signal32.h. It seems it was just
forgotten to also remove compat_rt_sigframe.h from the tree. Remove that
header now.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
---
Tested mostly by, again, prodding at the (history of the) tree with
various git commands.

 arch/parisc/include/asm/compat_rt_sigframe.h |   50 --------------------------
 1 files changed, 0 insertions(+), 50 deletions(-)
 delete mode 100644 arch/parisc/include/asm/compat_rt_sigframe.h

diff --git a/arch/parisc/include/asm/compat_rt_sigframe.h b/arch/parisc/include/asm/compat_rt_sigframe.h
deleted file mode 100644
index 81bec28..0000000
--- a/arch/parisc/include/asm/compat_rt_sigframe.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#include<linux/compat.h>
-#include<linux/compat_siginfo.h>
-#include<asm/compat_ucontext.h>
-
-#ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-#define _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-
-/* In a deft move of uber-hackery, we decide to carry the top half of all
- * 64-bit registers in a non-portable, non-ABI, hidden structure.
- * Userspace can read the hidden structure if it *wants* but is never
- * guaranteed to be in the same place. Infact the uc_sigmask from the 
- * ucontext_t structure may push the hidden register file downards
- */
-struct compat_regfile {
-	/* Upper half of all the 64-bit registers that were truncated
-	   on a copy to a 32-bit userspace */
-	compat_int_t rf_gr[32];
-	compat_int_t rf_iasq[2];
-	compat_int_t rf_iaoq[2];
-	compat_int_t rf_sar;
-};
-
-#define COMPAT_SIGRETURN_TRAMP 4
-#define COMPAT_SIGRESTARTBLOCK_TRAMP 5 
-#define COMPAT_TRAMP_SIZE (COMPAT_SIGRETURN_TRAMP + COMPAT_SIGRESTARTBLOCK_TRAMP)
-
-struct compat_rt_sigframe {
-	/* XXX: Must match trampoline size in arch/parisc/kernel/signal.c 
-	        Secondary to that it must protect the ERESTART_RESTARTBLOCK
-		trampoline we left on the stack (we were bad and didn't 
-		change sp so we could run really fast.) */
-	compat_uint_t tramp[COMPAT_TRAMP_SIZE];
-	compat_siginfo_t info;
-	struct compat_ucontext uc;
-	/* Hidden location of truncated registers, *must* be last. */
-	struct compat_regfile regs; 
-};
-
-/*
- * The 32-bit ABI wants at least 48 bytes for a function call frame:
- * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of
- * which Linux/parisc uses is sp-20 for the saved return pointer...)
- * Then, the stack pointer must be rounded to a cache line (64 bytes).
- */
-#define SIGFRAME32		64
-#define FUNCTIONCALLFRAME32	48
-#define PARISC_RT_SIGFRAME_SIZE32					\
-	(((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)

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From: Kautuk Consul <consul.kautuk@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH 17/19 v2] parisc/mm/fault.c: Port OOM changes to do_page_fault
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Hi,

Can you please review this patch ?

Many archs have actually accepted this change so I think maybe this is =
okay. :)

Thanks,
Kautuk.

On Sat, Mar 31, 2012 at 5:36 PM, Kautuk Consul <consul.kautuk@gmail.com=
> wrote:
> Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99
> (mm: retry page fault when blocking on disk transfer) and
> commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb
> (x86,mm: make pagefault killable)
>
> The above commits introduced changes into the x86 pagefault handler
> for making the page fault handler retryable as well as killable.
>
> These changes reduce the mmap_sem hold time, which is crucial
> during OOM killer invocation.
>
> Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
> ---
> =A0arch/parisc/mm/fault.c | =A0 29 ++++++++++++++++++++++++-----
> =A01 files changed, 24 insertions(+), 5 deletions(-)
>
> diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
> index 18162ce..bd66ed6 100644
> --- a/arch/parisc/mm/fault.c
> +++ b/arch/parisc/mm/fault.c
> @@ -175,10 +175,12 @@ void do_page_fault(struct pt_regs *regs, unsign=
ed long code,
> =A0 =A0 =A0 =A0struct mm_struct *mm =3D tsk->mm;
> =A0 =A0 =A0 =A0unsigned long acc_type;
> =A0 =A0 =A0 =A0int fault;
> + =A0 =A0 =A0 unsigned int flags =3D FAULT_FLAG_ALLOW_RETRY | FAULT_F=
LAG_KILLABLE;
>
> =A0 =A0 =A0 =A0if (in_atomic() || !mm)
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0goto no_context;
>
> +retry:
> =A0 =A0 =A0 =A0down_read(&mm->mmap_sem);
> =A0 =A0 =A0 =A0vma =3D find_vma_prev(mm, address, &prev_vma);
> =A0 =A0 =A0 =A0if (!vma || address < vma->vm_start)
> @@ -201,7 +203,12 @@ good_area:
> =A0 =A0 =A0 =A0 * fault.
> =A0 =A0 =A0 =A0 */
>
> - =A0 =A0 =A0 fault =3D handle_mm_fault(mm, vma, address, (acc_type &=
 VM_WRITE) ? FAULT_FLAG_WRITE : 0);
> + =A0 =A0 =A0 fault =3D handle_mm_fault(mm, vma, address,
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 flags | ((acc_type & VM=
_WRITE) ? FAULT_FLAG_WRITE : 0));
> +
> + =A0 =A0 =A0 if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(cu=
rrent))
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 return;
> +
> =A0 =A0 =A0 =A0if (unlikely(fault & VM_FAULT_ERROR)) {
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/*
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 * We hit a shared mapping outside of =
the file, or some
> @@ -214,10 +221,22 @@ good_area:
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0goto bad_area;
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0BUG();
> =A0 =A0 =A0 =A0}
> - =A0 =A0 =A0 if (fault & VM_FAULT_MAJOR)
> - =A0 =A0 =A0 =A0 =A0 =A0 =A0 current->maj_flt++;
> - =A0 =A0 =A0 else
> - =A0 =A0 =A0 =A0 =A0 =A0 =A0 current->min_flt++;
> + =A0 =A0 =A0 if (flags & FAULT_FLAG_ALLOW_RETRY) {
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 if (fault & VM_FAULT_MAJOR)
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 current->maj_flt++;
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 else
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 current->min_flt++;
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 if (fault & VM_FAULT_RETRY) {
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 flags &=3D ~FAULT_FLAG_=
ALLOW_RETRY;
> +
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/* No need to up_rea=
d(&mm->mmap_sem) as we would
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0* have already relea=
sed it in __lock_page_or_retry
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0* in mm/filemap.c.
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0*/
> +
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 goto retry;
> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 }
> + =A0 =A0 =A0 }
> =A0 =A0 =A0 =A0up_read(&mm->mmap_sem);
> =A0 =A0 =A0 =A0return;
>
> --
> 1.7.5.4
>
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 3.4.1 fails to boot on Apollo 705 in paging_init
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Hi Rolf,

Did the machine worked with the old debian kernels?

According to http://hwdb.parisc-linux.org/view.php?type=machine&name=705 
it has a PA7000 (PCX-S)) CPU, which is PA1.1a generation.
Probably we still use some assembly which is not supported on PA1.1a yet.
My "oldest" testmachine was a 715/64 which is PA7100LC aka PA 1.1d 
generation...

I can try to look into this, but this will take some time since I'll 
leave for two-week vacation shortly...

Helge

On 06/06/2012 02:55 PM, Rolf Eike Beer wrote:
> Linux version 3.4.1 (root@voyager) (gcc version 4.5.3 (Gentoo 4.5.3-r2
> p1.5, pie-0.4.7) ) #1 Wed Jun 6 14:15:43 CEST 2012
> unwind_init: start = 0x1044e000, end = 0x1047faf0, entries = 12719
> FP[0] enabled: Rev 3 Model 0
> The 32-bit Kernel has started...
> bootconsole [ttyB0] enabled
> Initialized PDC Console for debugging.
> Determining PDC firmware type: Snake.
> model 00003020 00000481 00000000 00000000 77aac223 ffffffff 00000004
> 0000000d 00000000
> vers  00000003
> model 9000/705
> Total Memory: 64 MB
>        _______________________________
>       <  Your System ate a SPARC! Gah!>
>        -------------------------------
>               \   ^__^
>                   (__)\       )\/\
>                    U  ||----w |
>                       ||     ||
> swapper (pid 0): Protection id trap (code 7)
>
>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001110 Not tainted
> r00-03  0004000e 0004000e 1050104c 00000000
> r04-07  00000001 104841cc 1048e000 104917b8
> r08-11  104917d4 1048e024 00000000 00100000
> r12-15  00004000 00000000 00537fff 104b58c8
> r16-19  104ec800 00004000 1048e000 0000000e
> r20-23  00000000 00000000 00000000 00000000
> r24-27  00000001 00000000 00000000 1048e000
> r28-31  00000000 00000000 10484280 00000000
> sr00-03  00000000 00000000 00000000 00000000
> sr04-07  00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 1010077c 10100780
>   IIR: e840c000    ISR: 00000000  IOR: 1050104c
>   CPU:        0   CR30: 10484000 CR31: 000000e0
>   ORIG_R28: 00000000
>   IAOQ[0]: .L21+0x0/0x8
>   IAOQ[1]: .L21+0x4/0x8
>   RP(r2): paging_init+0x788/0x824
> Backtrace:
>   [<1050104c>] paging_init+0x788/0x824
>   [<10501688>] setup_arch+0x5c/0x88
>   [<104fd8d0>] start_kernel+0x80/0x370
>   [<1010f218>] start_parisc+0x4c/0x68
>
> Backtrace:
>   [<1010f940>] die_if_kernel+0x138/0x1b0
>   [<10110094>] handle_interruption+0x46c/0x614
>   [<10104078>] intr_check_sig+0x0/0x34
>   [<10100780>] .L21+0x4/0x8
>
> ---[ end trace 139ce121c98e96c9 ]---
>        _______________________________
>       <  Your System ate a SPARC! Gah!>
>        -------------------------------
>               \   ^__^
>                   (__)\       )\/\
>                    U  ||----w |
>                       ||     ||
> swapper (pid 0): Protection id trap (code 7)
> die_if_kernel() recursion detected.

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Helge Deller wrote:

> Did the machine worked with the old debian kernels?

I have no idea, I'm running Gentoo. Current system is this:

Linux apollo 2.6.38.8 #2 Wed Feb 15 17:42:42 CET 2012 parisc PA7000
(PCX-S) 9000/705 GNU/Linux

> According to http://hwdb.parisc-linux.org/view.php?type=machine&name=705
> it has a PA7000 (PCX-S)) CPU, which is PA1.1a generation.
> Probably we still use some assembly which is not supported on PA1.1a yet.
> My "oldest" testmachine was a 715/64 which is PA7100LC aka PA 1.1d
> generation...
>
> I can try to look into this, but this will take some time since I'll
> leave for two-week vacation shortly...

I've reported the breakage in 2.6.39 in the cache code here a while ago
(that's the stuff that recently got some work), afterwards I found no
kernel that was working.

Eike
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Subject: Re: 3.4.1 fails to boot on Apollo 705 in paging_init
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On 13-Jun-12, at 5:27 PM, Rolf Eike Beer wrote:

> I've reported the breakage in 2.6.39 in the cache code here a while  
> ago
> (that's the stuff that recently got some work), afterwards I found no
> kernel that was working.


Can you make sure that the latest set of cache fixes are present?  I'm
fairly certain they are all in 3.4.2.

If that doesn't resolve the crash, could you disassemble the code around
the failing instruction and submit to list?  Also, Helge might be able  
to test
your config.

I'm a bit skeptical that this is caused by unsupported assembly  
introduced
after 2.6.39.  If James' original tmpalias patch plus the recent fixes  
works
on top of 2.6.39, then a regression hunt may be in order.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: Tony Luck <tony.luck@intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ia64
Subject: [PATCH] debug: Do not permit CONFIG_DEBUG_STACK_USAGE=y on IA64 or PARISC
Date: Wed, 18 Jul 2012 10:35:05 -0700
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Cc: Ingo Molnar <mingo@elte.hu>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
	linux-ia64@vger.kernel.org, Fengguang Wu <fengguang.wu@intel.com>
To: linux-kernel@vger.kernel.org
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The stack_not_used() function in <linux/sched.h> assumes that stacks
grow downwards. This is not true on IA64 or PARISC, so this function
would walk off in the wrong direction and into the weeds.

Found on IA64 because of a compilation failure with recursive dependencies
on IA64_TASKSIZE and IA64_THREAD_INFO_SIZE.

Fixing the code is possible, but should be combined with other
infrastructure additions to set up the "canary" at the end of the stack.

Reported-by: Fengguang Wu <fengguang.wu@intel.com> (failed allmodconfig build)
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 lib/Kconfig.debug | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ff5bdee..4a18650 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -714,7 +714,7 @@ config STACKTRACE
 
 config DEBUG_STACK_USAGE
 	bool "Stack utilization instrumentation"
-	depends on DEBUG_KERNEL
+	depends on DEBUG_KERNEL && !IA64 && !PARISC
 	help
 	  Enables the display of the minimum amount of free stack which each
 	  task has ever had available in the sysrq-T and sysrq-P debug output.
-- 
1.7.10.2.552.gaa3bb87

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Newsgroups: gmane.linux.kernel,gmane.linux.kernel.janitors,gmane.linux.ports.parisc
Subject: Re: [next:akpm 129/309] net/core/sock.c:274:36: error: initializer
 element is not constant
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Cc: Fengguang Wu <fengguang.wu@intel.com>,
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	Andrew Morton <akpm@linux-foundation.org>,
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To: Mel Gorman <mgorman@suse.de>
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[Parisc list cc added]
On Mon, 2012-07-23 at 12:16 +0100, Mel Gorman wrote:
> On Mon, Jul 23, 2012 at 12:30:58AM +0800, Fengguang Wu wrote:
> > Hi Mel,
> > 
> > To be frank, I don't quite understand this build failure..
> > 
> > tree:   next/akpm akpm
> > head:   37e2ad4953983527f7bdb6831bf478eedcc84082
> > commit: 799dc3a908b1df8b766c35aefc24c1b5356aa051 [129/309] netvm: allow skb allocation to use PFMEMALLOC reserves
> > config: parisc-defconfig (attached as .config)
> > 
> > All related error/warning messages:
> > 
> > net/core/sock.c:274:36: error: initializer element is not constant
> > net/core/sock.c:274:36: error: (near initialization for 'memalloc_socks')
> > net/core/sock.c:274:36: error: initializer element is not constant
> > 
> 
> It looks parisc specific so am adding some parisc because this builds but
> I am less sure if it is actually correct. If it's correct, it should be
> appear before the swap-over-nfs patches to avoid bisection problems.
> I've added some parisc folk for review.
> 
> ---8<---
> parisc: Redefine ATOMIC_INIT and ATOMIC64_INIT like other architectures
> 
> The following build error occured during a parisc build with
> swap-over-NFS patches applied.
> 
> net/core/sock.c:274:36: error: initializer element is not constant
> net/core/sock.c:274:36: error: (near initialization for 'memalloc_socks')
> net/core/sock.c:274:36: error: initializer element is not constant
> 
> It's not obvious but this is due to how ATOMIC_INIT is defined on
> parisc. It should affect any user of STATIC_KEY_INIT_FALSE on that
> platform.
> 
> This patch makes the definition of ATOMIC_INIT on parisc to look like
> other arches definition.
> 
> Reported-by: Fengguang Wu <fengguang.wu@intel.com>
> Signed-off-by: Mel Gorman <mgorman@suse.de>
> ---
>  arch/parisc/include/asm/atomic.h |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
> index 6c6defc..af9cf30 100644
> --- a/arch/parisc/include/asm/atomic.h
> +++ b/arch/parisc/include/asm/atomic.h
> @@ -141,7 +141,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
>  
>  #define atomic_sub_and_test(i,v)	(atomic_sub_return((i),(v)) == 0)
>  
> -#define ATOMIC_INIT(i)	((atomic_t) { (i) })
> +#define ATOMIC_INIT(i)	{ (i) }
>  
>  #define smp_mb__before_atomic_dec()	smp_mb()
>  #define smp_mb__after_atomic_dec()	smp_mb()
> @@ -150,7 +150,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
>  
>  #ifdef CONFIG_64BIT
>  
> -#define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
> +#define ATOMIC64_INIT(i) { (i) }
>  
>  static __inline__ s64
>  __atomic64_add_return(s64 i, atomic64_t *v)

OK, I don't understand this either ... why would not casting to the
appropriate type suddenly stop warning about the initialiser being non
constant.  It looks like some type of gcc bug to me.  Our toolchain
expert (Dave) hangs out on the parisc list ... he'll want to know your
gcc -v.

James



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From: Mel Gorman <mgorman@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.janitors,gmane.linux.kernel
Subject: Re: [next:akpm 129/309] net/core/sock.c:274:36: error: initializer
 element is not constant
Date: Mon, 23 Jul 2012 12:42:58 +0100
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Cc: Fengguang Wu <fengguang.wu@intel.com>,
	kernel-janitors@vger.kernel.org,
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	Andrew Morton <akpm@linux-foundation.org>,
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On Mon, Jul 23, 2012 at 12:20:20PM +0100, James Bottomley wrote:
> [Parisc list cc added]
> On Mon, 2012-07-23 at 12:16 +0100, Mel Gorman wrote:
> > On Mon, Jul 23, 2012 at 12:30:58AM +0800, Fengguang Wu wrote:
> > > Hi Mel,
> > > 
> > > To be frank, I don't quite understand this build failure..
> > > 
> > > tree:   next/akpm akpm
> > > head:   37e2ad4953983527f7bdb6831bf478eedcc84082
> > > commit: 799dc3a908b1df8b766c35aefc24c1b5356aa051 [129/309] netvm: allow skb allocation to use PFMEMALLOC reserves
> > > config: parisc-defconfig (attached as .config)
> > > 
> > > All related error/warning messages:
> > > 
> > > net/core/sock.c:274:36: error: initializer element is not constant
> > > net/core/sock.c:274:36: error: (near initialization for 'memalloc_socks')
> > > net/core/sock.c:274:36: error: initializer element is not constant
> > > 
> > 
> > It looks parisc specific so am adding some parisc because this builds but
> > I am less sure if it is actually correct. If it's correct, it should be
> > appear before the swap-over-nfs patches to avoid bisection problems.
> > I've added some parisc folk for review.
> > 
> > ---8<---
> > parisc: Redefine ATOMIC_INIT and ATOMIC64_INIT like other architectures
> > 
> > The following build error occured during a parisc build with
> > swap-over-NFS patches applied.
> > 
> > net/core/sock.c:274:36: error: initializer element is not constant
> > net/core/sock.c:274:36: error: (near initialization for 'memalloc_socks')
> > net/core/sock.c:274:36: error: initializer element is not constant
> > 
> > It's not obvious but this is due to how ATOMIC_INIT is defined on
> > parisc. It should affect any user of STATIC_KEY_INIT_FALSE on that
> > platform.
> > 
> > This patch makes the definition of ATOMIC_INIT on parisc to look like
> > other arches definition.
> > 
> > Reported-by: Fengguang Wu <fengguang.wu@intel.com>
> > Signed-off-by: Mel Gorman <mgorman@suse.de>
> > ---
> >  arch/parisc/include/asm/atomic.h |    4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
> > index 6c6defc..af9cf30 100644
> > --- a/arch/parisc/include/asm/atomic.h
> > +++ b/arch/parisc/include/asm/atomic.h
> > @@ -141,7 +141,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
> >  
> >  #define atomic_sub_and_test(i,v)	(atomic_sub_return((i),(v)) == 0)
> >  
> > -#define ATOMIC_INIT(i)	((atomic_t) { (i) })
> > +#define ATOMIC_INIT(i)	{ (i) }
> >  
> >  #define smp_mb__before_atomic_dec()	smp_mb()
> >  #define smp_mb__after_atomic_dec()	smp_mb()
> > @@ -150,7 +150,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
> >  
> >  #ifdef CONFIG_64BIT
> >  
> > -#define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
> > +#define ATOMIC64_INIT(i) { (i) }
> >  
> >  static __inline__ s64
> >  __atomic64_add_return(s64 i, atomic64_t *v)
> 
> OK, I don't understand this either ... why would not casting to the
> appropriate type suddenly stop warning about the initialiser being non
> constant.  It looks like some type of gcc bug to me. 

I agree. I could not see any functional difference as such either but also
could not figure out why gcc would get it right for some arches and not
for others.

> Our toolchain
> expert (Dave) hangs out on the parisc list ... he'll want to know your
> gcc -v.
> 

I'm using the cross-compiler from
ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/. I do
not know what compiler Fengguang Wu was using. 

Using built-in specs.
COLLECT_GCC=/home/mel/git-public/cross-compilers/gcc-4.6.3-nolibc/hppa-linux/bin/hppa-linux-gcc
COLLECT_LTO_WRAPPER=/home/mel/git-public/cross-compilers/gcc-4.6.3-nolibc/hppa-linux/bin/../libexec/gcc/hppa-linux/4.6.3/lto-wrapper
Target: hppa-linux
Configured with: /home/tony/buildall/src/gcc/configure
--target=hppa-linux --host=x86_64-linux-gnu --build=x86_64-linux-gnu
--enable-targets=all --prefix=/opt/cross/gcc-4.6.3-nolibc/hppa-linux/
--enable-languages=c --with-newlib --without-headers
--enable-sjlj-exceptions --with-system-libunwind --disable-nls
--disable-threads --disable-shared --disable-libmudflap --disable-libssp
--disable-libgomp --disable-decimal-float --enable-checking=release
--with-mpfr=/home/tony/buildall/src/sys-x86_64
--with-gmp=/home/tony/buildall/src/sys-x86_64 --disable-bootstrap
--disable-libquadmath
Thread model: single
gcc version 4.6.3 (GCC) 

-- 
Mel Gorman
SUSE Labs
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From: Fengguang Wu <fengguang.wu@intel.com>
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Subject: Re: [next:akpm 129/309] net/core/sock.c:274:36: error: initializer
 element is not constant
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To: Mel Gorman <mgorman@suse.de>
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On Mon, Jul 23, 2012 at 12:42:58PM +0100, Mel Gorman wrote:
> On Mon, Jul 23, 2012 at 12:20:20PM +0100, James Bottomley wrote:
> > [Parisc list cc added]
> > On Mon, 2012-07-23 at 12:16 +0100, Mel Gorman wrote:
> > > On Mon, Jul 23, 2012 at 12:30:58AM +0800, Fengguang Wu wrote:
> > > > Hi Mel,
> > > > 
> > > > To be frank, I don't quite understand this build failure..
> > > > 
> > > > tree:   next/akpm akpm
> > > > head:   37e2ad4953983527f7bdb6831bf478eedcc84082
> > > > commit: 799dc3a908b1df8b766c35aefc24c1b5356aa051 [129/309] netvm: allow skb allocation to use PFMEMALLOC reserves
> > > > config: parisc-defconfig (attached as .config)
> > > > 
> > > > All related error/warning messages:
> > > > 
> > > > net/core/sock.c:274:36: error: initializer element is not constant
> > > > net/core/sock.c:274:36: error: (near initialization for 'memalloc_socks')
> > > > net/core/sock.c:274:36: error: initializer element is not constant
> > > > 
> > > 
> > > It looks parisc specific so am adding some parisc because this builds but
> > > I am less sure if it is actually correct. If it's correct, it should be
> > > appear before the swap-over-nfs patches to avoid bisection problems.
> > > I've added some parisc folk for review.
> > > 
> > > ---8<---
> > > parisc: Redefine ATOMIC_INIT and ATOMIC64_INIT like other architectures
> > > 
> > > The following build error occured during a parisc build with
> > > swap-over-NFS patches applied.
> > > 
> > > net/core/sock.c:274:36: error: initializer element is not constant
> > > net/core/sock.c:274:36: error: (near initialization for 'memalloc_socks')
> > > net/core/sock.c:274:36: error: initializer element is not constant
> > > 
> > > It's not obvious but this is due to how ATOMIC_INIT is defined on
> > > parisc. It should affect any user of STATIC_KEY_INIT_FALSE on that
> > > platform.
> > > 
> > > This patch makes the definition of ATOMIC_INIT on parisc to look like
> > > other arches definition.
> > > 
> > > Reported-by: Fengguang Wu <fengguang.wu@intel.com>
> > > Signed-off-by: Mel Gorman <mgorman@suse.de>
> > > ---
> > >  arch/parisc/include/asm/atomic.h |    4 ++--
> > >  1 file changed, 2 insertions(+), 2 deletions(-)
> > > 
> > > diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
> > > index 6c6defc..af9cf30 100644
> > > --- a/arch/parisc/include/asm/atomic.h
> > > +++ b/arch/parisc/include/asm/atomic.h
> > > @@ -141,7 +141,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
> > >  
> > >  #define atomic_sub_and_test(i,v)	(atomic_sub_return((i),(v)) == 0)
> > >  
> > > -#define ATOMIC_INIT(i)	((atomic_t) { (i) })
> > > +#define ATOMIC_INIT(i)	{ (i) }
> > >  
> > >  #define smp_mb__before_atomic_dec()	smp_mb()
> > >  #define smp_mb__after_atomic_dec()	smp_mb()
> > > @@ -150,7 +150,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
> > >  
> > >  #ifdef CONFIG_64BIT
> > >  
> > > -#define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
> > > +#define ATOMIC64_INIT(i) { (i) }
> > >  
> > >  static __inline__ s64
> > >  __atomic64_add_return(s64 i, atomic64_t *v)
> > 
> > OK, I don't understand this either ... why would not casting to the
> > appropriate type suddenly stop warning about the initialiser being non
> > constant.  It looks like some type of gcc bug to me. 
> 
> I agree. I could not see any functional difference as such either but also
> could not figure out why gcc would get it right for some arches and not
> for others.

Will gcc create a temporary (and hence non constant) value for the
conversion?

> > Our toolchain
> > expert (Dave) hangs out on the parisc list ... he'll want to know your
> > gcc -v.
> > 
> 
> I'm using the cross-compiler from
> ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/. I do
> not know what compiler Fengguang Wu was using. 

Yeah that's handy binaries and I'm using them in the x86 compile
servers. However this particular parisc-defconfig is compile tested in
an ia64 machine which is built from debian's gcc-4.7 source:

Using built-in specs.
COLLECT_GCC=/opt/cross/bin/hppa-linux-gcc
COLLECT_LTO_WRAPPER=/opt/cross/libexec/gcc/hppa-linux/4.7/lto-wrapper
Target: hppa-linux
Configured with: /home/wfg/buildall/gcc-4.7-4.7.1/src/configure --target=hppa-linux --enable-targets=all --prefix=/opt/cross --enable-lang
uages=c --without-headers --enable-sjlj-exceptions --with-system-libunwind --disable-nls --disable-threads --disable-shared --disable-libmudflap --disable-libssp --disable-libgomp --disable-decimal-float --disable-libquadmath --enable-checking=release                         Thread model: single
gcc version 4.7.1 (GCC) 

Thanks,
Fengguang

> Using built-in specs.
> COLLECT_GCC=/home/mel/git-public/cross-compilers/gcc-4.6.3-nolibc/hppa-linux/bin/hppa-linux-gcc
> COLLECT_LTO_WRAPPER=/home/mel/git-public/cross-compilers/gcc-4.6.3-nolibc/hppa-linux/bin/../libexec/gcc/hppa-linux/4.6.3/lto-wrapper
> Target: hppa-linux
> Configured with: /home/tony/buildall/src/gcc/configure
> --target=hppa-linux --host=x86_64-linux-gnu --build=x86_64-linux-gnu
> --enable-targets=all --prefix=/opt/cross/gcc-4.6.3-nolibc/hppa-linux/
> --enable-languages=c --with-newlib --without-headers
> --enable-sjlj-exceptions --with-system-libunwind --disable-nls
> --disable-threads --disable-shared --disable-libmudflap --disable-libssp
> --disable-libgomp --disable-decimal-float --enable-checking=release
> --with-mpfr=/home/tony/buildall/src/sys-x86_64
> --with-gmp=/home/tony/buildall/src/sys-x86_64 --disable-bootstrap
> --disable-libquadmath
> Thread model: single
> gcc version 4.6.3 (GCC) 
> 
> -- 
> Mel Gorman
> SUSE Labs

From - Thu Nov 08 21:08:28 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [next:akpm 129/309] net/core/sock.c:274:36: error: initializer element is not constant
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Cc: Mel Gorman <mgorman@suse.de>,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	kernel-janitors@vger.kernel.org,
	Kyle McMartin <kyle@parisc-linux.org>,
	Andrew Morton <akpm@linux-foundation.org>,
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To: Fengguang Wu <fengguang.wu@intel.com>
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On 23-Jul-12, at 8:29 AM, Fengguang Wu wrote:

> On Mon, Jul 23, 2012 at 12:42:58PM +0100, Mel Gorman wrote:
>> On Mon, Jul 23, 2012 at 12:20:20PM +0100, James Bottomley wrote:
>>> [Parisc list cc added]
>>> On Mon, 2012-07-23 at 12:16 +0100, Mel Gorman wrote:
>>>> On Mon, Jul 23, 2012 at 12:30:58AM +0800, Fengguang Wu wrote:
>>>>> Hi Mel,
>>>>>
>>>>> To be frank, I don't quite understand this build failure..
>>>>>
>>>>> tree:   next/akpm akpm
>>>>> head:   37e2ad4953983527f7bdb6831bf478eedcc84082
>>>>> commit: 799dc3a908b1df8b766c35aefc24c1b5356aa051 [129/309]  
>>>>> netvm: allow skb allocation to use PFMEMALLOC reserves
>>>>> config: parisc-defconfig (attached as .config)
>>>>>
>>>>> All related error/warning messages:
>>>>>
>>>>> net/core/sock.c:274:36: error: initializer element is not constant
>>>>> net/core/sock.c:274:36: error: (near initialization for  
>>>>> 'memalloc_socks')
>>>>> net/core/sock.c:274:36: error: initializer element is not constant
>>>>>
>>>>
>>>> It looks parisc specific so am adding some parisc because this  
>>>> builds but
>>>> I am less sure if it is actually correct. If it's correct, it  
>>>> should be
>>>> appear before the swap-over-nfs patches to avoid bisection  
>>>> problems.
>>>> I've added some parisc folk for review.
>>>>
>>>> ---8<---
>>>> parisc: Redefine ATOMIC_INIT and ATOMIC64_INIT like other  
>>>> architectures
>>>>
>>>> The following build error occured during a parisc build with
>>>> swap-over-NFS patches applied.
>>>>
>>>> net/core/sock.c:274:36: error: initializer element is not constant
>>>> net/core/sock.c:274:36: error: (near initialization for  
>>>> 'memalloc_socks')
>>>> net/core/sock.c:274:36: error: initializer element is not constant
>>>>
>>>> It's not obvious but this is due to how ATOMIC_INIT is defined on
>>>> parisc. It should affect any user of STATIC_KEY_INIT_FALSE on that
>>>> platform.
>>>>
>>>> This patch makes the definition of ATOMIC_INIT on parisc to look  
>>>> like
>>>> other arches definition.
>>>>
>>>> Reported-by: Fengguang Wu <fengguang.wu@intel.com>
>>>> Signed-off-by: Mel Gorman <mgorman@suse.de>
>>>> ---
>>>> arch/parisc/include/asm/atomic.h |    4 ++--
>>>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>>>
>>>> diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/ 
>>>> include/asm/atomic.h
>>>> index 6c6defc..af9cf30 100644
>>>> --- a/arch/parisc/include/asm/atomic.h
>>>> +++ b/arch/parisc/include/asm/atomic.h
>>>> @@ -141,7 +141,7 @@ static __inline__ int  
>>>> __atomic_add_unless(atomic_t *v, int a, int u)
>>>>
>>>> #define atomic_sub_and_test(i,v)	(atomic_sub_return((i),(v)) == 0)
>>>>
>>>> -#define ATOMIC_INIT(i)	((atomic_t) { (i) })
>>>> +#define ATOMIC_INIT(i)	{ (i) }
>>>>
>>>> #define smp_mb__before_atomic_dec()	smp_mb()
>>>> #define smp_mb__after_atomic_dec()	smp_mb()
>>>> @@ -150,7 +150,7 @@ static __inline__ int  
>>>> __atomic_add_unless(atomic_t *v, int a, int u)
>>>>
>>>> #ifdef CONFIG_64BIT
>>>>
>>>> -#define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
>>>> +#define ATOMIC64_INIT(i) { (i) }
>>>>
>>>> static __inline__ s64
>>>> __atomic64_add_return(s64 i, atomic64_t *v)
>>>
>>> OK, I don't understand this either ... why would not casting to the
>>> appropriate type suddenly stop warning about the initialiser being  
>>> non
>>> constant.  It looks like some type of gcc bug to me.
>>

Possibly, the cast causes the const attribute to be dropped...

>> I agree. I could not see any functional difference as such either  
>> but also
>> could not figure out why gcc would get it right for some arches and  
>> not
>> for others.
>
> Will gcc create a temporary (and hence non constant) value for the
> conversion?

Parisc is a callee copies architecture.  Thus, a structure passed as an
argument may be copied to a temporary.  This has been a source of
numerous bugs as the majority of architectures do it the other way  
round.

It would be easier to see what's happening with preprocessed source.

>
>>> Our toolchain
>>> expert (Dave) hangs out on the parisc list ... he'll want to know  
>>> your
>>> gcc -v.
>>>
>>
>> I'm using the cross-compiler from
>> ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/. I  
>> do
>> not know what compiler Fengguang Wu was using.
>
> Yeah that's handy binaries and I'm using them in the x86 compile
> servers. However this particular parisc-defconfig is compile tested in
> an ia64 machine which is built from debian's gcc-4.7 source:
>
> Using built-in specs.
> COLLECT_GCC=/opt/cross/bin/hppa-linux-gcc
> COLLECT_LTO_WRAPPER=/opt/cross/libexec/gcc/hppa-linux/4.7/lto-wrapper
> Target: hppa-linux
> Configured with: /home/wfg/buildall/gcc-4.7-4.7.1/src/configure -- 
> target=hppa-linux --enable-targets=all --prefix=/opt/cross --enable- 
> lang
> uages=c --without-headers --enable-sjlj-exceptions --with-system- 
> libunwind --disable-nls --disable-threads --disable-shared --disable- 
> libmudflap --disable-libssp --disable-libgomp --disable-decimal- 
> float --disable-libquadmath --enable- 
> checking=release                         Thread model: single
> gcc version 4.7.1 (GCC)
>
> Thanks,
> Fengguang
>
>> Using built-in specs.
>> COLLECT_GCC=/home/mel/git-public/cross-compilers/gcc-4.6.3-nolibc/ 
>> hppa-linux/bin/hppa-linux-gcc
>> COLLECT_LTO_WRAPPER=/home/mel/git-public/cross-compilers/gcc-4.6.3- 
>> nolibc/hppa-linux/bin/../libexec/gcc/hppa-linux/4.6.3/lto-wrapper
>> Target: hppa-linux
>> Configured with: /home/tony/buildall/src/gcc/configure
>> --target=hppa-linux --host=x86_64-linux-gnu --build=x86_64-linux-gnu
>> --enable-targets=all --prefix=/opt/cross/gcc-4.6.3-nolibc/hppa-linux/
>> --enable-languages=c --with-newlib --without-headers
>> --enable-sjlj-exceptions --with-system-libunwind --disable-nls
>> --disable-threads --disable-shared --disable-libmudflap --disable- 
>> libssp
>> --disable-libgomp --disable-decimal-float --enable-checking=release
>> --with-mpfr=/home/tony/buildall/src/sys-x86_64
>> --with-gmp=/home/tony/buildall/src/sys-x86_64 --disable-bootstrap
>> --disable-libquadmath
>> Thread model: single
>> gcc version 4.6.3 (GCC)
>>
>> -- 
>> Mel Gorman
>> SUSE Labs
> --
> To unsubscribe from this list: send the line "unsubscribe linux- 
> parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

--
John David Anglin	dave.anglin@bell.net




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From: Fengguang Wu <fengguang.wu@intel.com>
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Subject: Re: [next:akpm 129/309] net/core/sock.c:274:36: error: initializer
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	Kyle McMartin <kyle@parisc-linux.org>,
	Andrew Morton <akpm@linux-foundation.org>,
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To: John David Anglin <dave.anglin@bell.net>
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> It would be easier to see what's happening with preprocessed source.

Here is the line in sock.i:

struct static_key memalloc_socks = ((struct static_key) { .enabled = ((atomic_t) { (0) }) });

Thanks,
Fengguang
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Subject: Re: [next:akpm 129/309] net/core/sock.c:274:36: error: initializer element is not constant
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To: Fengguang Wu <fengguang.wu@intel.com>
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On 24-Jul-12, at 3:48 AM, Fengguang Wu wrote:

> Here is the line in sock.i:
>
> struct static_key memalloc_socks = ((struct static_key) { .enabled =  
> ((atomic_t) { (0) }) });


The above line contains two compound literals.  It also uses a  
designated initializer
to initialize the field enabled.  A compound literal is not a constant  
expression.

The location of the above statement isn't fully clear, but if a  
compound literal occurs
outside the body of a function, the initializer list must consist of  
constant expressions.

Removing "(atomic_t)" from the define results in a constant expression.

Test case:

typedef struct { long enabled; } atomic_t;
struct static_key { atomic_t enabled; int x; };
struct static_key memalloc_socks = ((struct static_key) { .enabled =  
((atomic_t) { (0) }) });

Dave
--
John David Anglin	dave.anglin@bell.net




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On Tue, 2012-07-24 at 17:08 -0400, John David Anglin wrote:
> Removing "(atomic_t)" from the define results in a constant expression.

OK, so this is what I'll queue for fixes:

From: Mel Gorman <mgorman@suse.de> Date: Mon, 23 Jul 2012 12:16:19
Subject: [PATCH] [PARISC] Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the  casts

The following build error occured during a parisc build with
swap-over-NFS patches applied.

net/core/sock.c:274:36: error: initializer element is not constant
net/core/sock.c:274:36: error: (near initialization for 'memalloc_socks')
net/core/sock.c:274:36: error: initializer element is not constant

Dave Anglin says:
> Here is the line in sock.i:
>
> struct static_key memalloc_socks = ((struct static_key) { .enabled =
> ((atomic_t) { (0) }) });

The above line contains two compound literals.  It also uses a designated
initializer to initialize the field enabled.  A compound literal is not a
constant expression.

The location of the above statement isn't fully clear, but if a compound
literal occurs outside the body of a function, the initializer list must
consist of constant expressions.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 6c6defc..af9cf30 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -141,7 +141,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 
 #define atomic_sub_and_test(i,v)	(atomic_sub_return((i),(v)) == 0)
 
-#define ATOMIC_INIT(i)	((atomic_t) { (i) })
+#define ATOMIC_INIT(i)	{ (i) }
 
 #define smp_mb__before_atomic_dec()	smp_mb()
 #define smp_mb__after_atomic_dec()	smp_mb()
@@ -150,7 +150,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 
 #ifdef CONFIG_64BIT
 
-#define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
+#define ATOMIC64_INIT(i) { (i) }
 
 static __inline__ s64
 __atomic64_add_return(s64 i, atomic64_t *v)


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* Tony Luck <tony.luck@intel.com> wrote:

> The stack_not_used() function in <linux/sched.h> assumes that stacks
> grow downwards. This is not true on IA64 or PARISC, so this function
> would walk off in the wrong direction and into the weeds.
> 
> Found on IA64 because of a compilation failure with recursive dependencies
> on IA64_TASKSIZE and IA64_THREAD_INFO_SIZE.
> 
> Fixing the code is possible, but should be combined with other
> infrastructure additions to set up the "canary" at the end of the stack.
> 
> Reported-by: Fengguang Wu <fengguang.wu@intel.com> (failed allmodconfig build)
> Signed-off-by: Tony Luck <tony.luck@intel.com>
> ---
>  lib/Kconfig.debug | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index ff5bdee..4a18650 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -714,7 +714,7 @@ config STACKTRACE
>  
>  config DEBUG_STACK_USAGE
>  	bool "Stack utilization instrumentation"
> -	depends on DEBUG_KERNEL
> +	depends on DEBUG_KERNEL && !IA64 && !PARISC

The modern way of doing this is by adding an ARCH_SUPPORTS_ 
flag.

Thanks,

	Ingo
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On Wed, 2012-07-25 at 09:45 +0200, Ingo Molnar wrote:
> * Tony Luck <tony.luck@intel.com> wrote:
> 
> > The stack_not_used() function in <linux/sched.h> assumes that stacks
> > grow downwards. This is not true on IA64 or PARISC, so this function
> > would walk off in the wrong direction and into the weeds.
> > 
> > Found on IA64 because of a compilation failure with recursive dependencies
> > on IA64_TASKSIZE and IA64_THREAD_INFO_SIZE.
> > 
> > Fixing the code is possible, but should be combined with other
> > infrastructure additions to set up the "canary" at the end of the stack.
> > 
> > Reported-by: Fengguang Wu <fengguang.wu@intel.com> (failed allmodconfig build)
> > Signed-off-by: Tony Luck <tony.luck@intel.com>
> > ---
> >  lib/Kconfig.debug | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> > index ff5bdee..4a18650 100644
> > --- a/lib/Kconfig.debug
> > +++ b/lib/Kconfig.debug
> > @@ -714,7 +714,7 @@ config STACKTRACE
> >  
> >  config DEBUG_STACK_USAGE
> >  	bool "Stack utilization instrumentation"
> > -	depends on DEBUG_KERNEL
> > +	depends on DEBUG_KERNEL && !IA64 && !PARISC
> 
> The modern way of doing this is by adding an ARCH_SUPPORTS_ 
> flag.

That's a bit daft, isn't it?  We'd have to add ARCH_SUPPORTS_ flags to
about 25 separate architectures just to get it not supported on these
two.

Since the problem is an invalid assumption about how the stack grows,
why not just condition it on that.  We actually have a config option for
this: CONFIG_STACK_GROWSUP.  But for some reason ia64 doesn't define
this, why not, Tony?  It looks deliberate because you have replaced a
lot of

#ifdef CONFIG_STACK_GROWSUP

with

#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)

but not all of them.

James



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From - Thu Nov 08 21:08:29 2018
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From: Mel Gorman <mgorman@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.janitors,gmane.linux.kernel
Subject: Re: [next:akpm 129/309] net/core/sock.c:274:36: error: initializer
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To: John David Anglin <dave.anglin@bell.net>
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On Tue, Jul 24, 2012 at 05:08:04PM -0400, John David Anglin wrote:
> On 24-Jul-12, at 3:48 AM, Fengguang Wu wrote:
> 
> >Here is the line in sock.i:
> >
> >struct static_key memalloc_socks = ((struct static_key) { .enabled
> >= ((atomic_t) { (0) }) });
> 
> 
> The above line contains two compound literals.  It also uses a
> designated initializer
> to initialize the field enabled.  A compound literal is not a
> constant expression.
> 
> The location of the above statement isn't fully clear, but if a
> compound literal occurs
> outside the body of a function, the initializer list must consist of
> constant expressions.
> 
> Removing "(atomic_t)" from the define results in a constant expression.
> 
> Test case:
> 
> typedef struct { long enabled; } atomic_t;
> struct static_key { atomic_t enabled; int x; };
> struct static_key memalloc_socks = ((struct static_key) { .enabled =
> ((atomic_t) { (0) }) });
> 

Thanks John for that explanation, it clears it up. The source of the
above line was linux-next/master:net/core/sock.c due to some patches I
merged. The exact line looks like this

struct static_key memalloc_socks = STATIC_KEY_INIT_FALSE;

and that thing in turns looks like

#define STATIC_KEY_INIT_FALSE ((struct static_key) \
        { .enabled = ATOMIC_INIT(0), .entries = (void *)0 })

This is a standard use of a static key (http://lwn.net/Articles/487426/)
and as I expect there will be more use of this feature in the future
it's good to get it fixed up first.

Thanks James for picking this up and putting a changelog on it.

-- 
Mel Gorman
SUSE Labs
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From: Ingo Molnar <mingo@kernel.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ia64
Subject: Re: [PATCH] debug: Do not permit CONFIG_DEBUG_STACK_USAGE=y on IA64
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* James Bottomley <James.Bottomley@HansenPartnership.com> wrote:

> On Wed, 2012-07-25 at 09:45 +0200, Ingo Molnar wrote:
> > * Tony Luck <tony.luck@intel.com> wrote:
> > 
> > > The stack_not_used() function in <linux/sched.h> assumes that stacks
> > > grow downwards. This is not true on IA64 or PARISC, so this function
> > > would walk off in the wrong direction and into the weeds.
> > > 
> > > Found on IA64 because of a compilation failure with recursive dependencies
> > > on IA64_TASKSIZE and IA64_THREAD_INFO_SIZE.
> > > 
> > > Fixing the code is possible, but should be combined with other
> > > infrastructure additions to set up the "canary" at the end of the stack.
> > > 
> > > Reported-by: Fengguang Wu <fengguang.wu@intel.com> (failed allmodconfig build)
> > > Signed-off-by: Tony Luck <tony.luck@intel.com>
> > > ---
> > >  lib/Kconfig.debug | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> > > index ff5bdee..4a18650 100644
> > > --- a/lib/Kconfig.debug
> > > +++ b/lib/Kconfig.debug
> > > @@ -714,7 +714,7 @@ config STACKTRACE
> > >  
> > >  config DEBUG_STACK_USAGE
> > >  	bool "Stack utilization instrumentation"
> > > -	depends on DEBUG_KERNEL
> > > +	depends on DEBUG_KERNEL && !IA64 && !PARISC
> > 
> > The modern way of doing this is by adding an ARCH_SUPPORTS_ 
> > flag.
> 
> That's a bit daft, isn't it? [...]

It's generally more maintainable than a random list of 
architecture exclusions because every (old or new) architecture 
can just grep for ARCH_SUPPORTS_ pattern and see whether they 
support everything that others support.

The above exclusion list of architectures is much harder to find 
in a structured way.

> [...]  We'd have to add ARCH_SUPPORTS_ flags to about 25 
> separate architectures just to get it not supported on these 
> two.

That is one off overhead and it makes things easier to maintain 
going forward.

Anyway, that's the current upstream technique and it's been in 
place for years.

> Since the problem is an invalid assumption about how the stack 
> grows, why not just condition it on that.  We actually have a 
> config option for this: CONFIG_STACK_GROWSUP.  But for some 
> reason ia64 doesn't define this, why not, Tony?  It looks 
> deliberate because you have replaced a lot of
> 
> #ifdef CONFIG_STACK_GROWSUP
> 
> with
> 
> #if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
> 
> but not all of them.

Yes, that's another possible solution, assuming that it's really 
only about the up/down difference.

Thanks,

	Ingo

From - Thu Nov 08 21:08:29 2018
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From: Tony Luck <tony.luck@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.janitors,gmane.linux.ports.parisc
Subject: Re: [next:akpm 129/309] net/core/sock.c:274:36: error: initializer
 element is not constant
Date: Thu, 26 Jul 2012 10:06:41 -0700
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On Tue, Jul 24, 2012 at 10:10 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
>> Here is the line in sock.i:
>>
>> struct static_key memalloc_socks = ((struct static_key) { .enabled =
>> ((atomic_t) { (0) }) });
>
> The above line contains two compound literals.  It also uses a designated
> initializer to initialize the field enabled.  A compound literal is not a
> constant expression.

Seeing the same thing on ia64 building next-20120726.  Same fix works
for me ... so I'll steal this whole changelog and attributes.

-Tony

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>>>>> "Ingo" == Ingo Molnar <mingo@kernel.org> writes:

Ingo> * James Bottomley <James.Bottomley@HansenPartnership.com> wrote:
>> Since the problem is an invalid assumption about how the stack
>> grows, why not just condition it on that.  We actually have a
>> config option for this: CONFIG_STACK_GROWSUP.  But for some reason
>> ia64 doesn't define this, why not, Tony?  It looks deliberate
>> because you have replaced a lot of
>> 
>> #ifdef CONFIG_STACK_GROWSUP
>> 
>> with
>> 
>> #if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
>> 
>> but not all of them.

Ingo> Yes, that's another possible solution, assuming that it's really
Ingo> only about the up/down difference.

Ingo> Thanks,

IA64 has two stacks -- the standard one, that grows down, and the
register stack engine backing store, that grows up.  The usual
mechanisms for stack growth are used, so only some of the bits
predicated on `STACK_GROWSUP' are useful.

Peter C
--
Dr Peter Chubb				        peter.chubb AT nicta.com.au
http://www.ssrg.nicta.com.au          Software Systems Research Group/NICTA
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Subject: Re: [PATCH] debug: Do not permit CONFIG_DEBUG_STACK_USAGE=y on IA64
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On Wed, 2012-07-18 at 10:35 -0700, Tony Luck wrote:
> The stack_not_used() function in <linux/sched.h> assumes that stacks
> grow downwards. This is not true on IA64 or PARISC, so this function
> would walk off in the wrong direction and into the weeds.

OK, so looking at all of this, that statement's not quite true ... at
least for parisc, we begin the stack where end_of_stack() says the end
should be and so the walker will likely find the next word after the
canary skip occupied and terminate there, so we think the stack is
larger than it really is.  It gets the wrong value, but it will never
even walk out of the stack area.

> Found on IA64 because of a compilation failure with recursive dependencies
> on IA64_TASKSIZE and IA64_THREAD_INFO_SIZE.
> 
> Fixing the code is possible, but should be combined with other
> infrastructure additions to set up the "canary" at the end of the stack.

I agree with this.  Most of it looks easily fixable, but how would I
enable the fix for ia64?  For PA it's simple: I'll just use
CONFIG_STACK_GROWSUP, but that won't work for you.

James


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From: Jiri Kosina <jkosina@suse.cz>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] parisc: fix personality flag check in copy_thread()
Date: Wed, 1 Aug 2012 21:57:53 +0200 (CEST)
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Directly comparing task_struct->personality against PER_* is not fully 
correct, as it doesn't take flags potentially stored in top three bytes 
into account.

Analogically, directly forcefully setting personality to PER_LINUX32 or
PER_LINUX discards any flags stored in the top three bytes.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---

Found accidentally, untested, I don't have the hardware.

 arch/parisc/kernel/process.c    |    2 +-
 arch/parisc/kernel/sys_parisc.c |    8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d4b94b3..2c05a92 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -309,7 +309,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 		cregs->ksp = (unsigned long)stack
 			+ (pregs->gr[21] & (THREAD_SIZE - 1));
 		cregs->gr[30] = usp;
-		if (p->personality == PER_HPUX) {
+		if (personality(p->personality) == PER_HPUX) {
 #ifdef CONFIG_HPUX
 			cregs->kpc = (unsigned long) &hpux_child_return;
 #else
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..f309990 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -225,12 +225,12 @@ long parisc_personality(unsigned long personality)
 	long err;
 
 	if (personality(current->personality) == PER_LINUX32
-	    && personality == PER_LINUX)
-		personality = PER_LINUX32;
+	    && personality(personality) == PER_LINUX)
+		personality &= ~PER_LINUX | PER_LINUX32;
 
 	err = sys_personality(personality);
-	if (err == PER_LINUX32)
-		err = PER_LINUX;
+	if (personality(err) == PER_LINUX32)
+		err &= ~PER_LINUX32 | PER_LINUX;
 
 	return err;
 }

-- 
Jiri Kosina
SUSE Labs
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On Sun, 13 May 2012, John David Anglin wrote:

> On 13-May-12, at 4:40 PM, John David Anglin wrote:
> 
> > Yes, the revised change fixes the compilation error.  I'll know in a while
> > if
> > my config boots.
> 
> 
> I successfully booted 3.4-rc7 with this change on rp3440 (4 cpu smp).  My
> build also
> included cache and other fixes that are being discussed on the parisc list.
> 
> Dave

Hi David

Can I download a series of your PA-RISC patches somewhere?

I applied this http://www.spinics.net/lists/linux-parisc/msg03352.html and 
it improved stability for me (I had no gcc crashes since that, only 
about two aptitude crashes).

How stable is it for you? Do you have some random crashes or not?

Mikulas

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On 1-Aug-12, at 9:00 PM, Mikulas Patocka wrote:

>
>
> On Sun, 13 May 2012, John David Anglin wrote:
>
>> On 13-May-12, at 4:40 PM, John David Anglin wrote:
>>
>>> Yes, the revised change fixes the compilation error.  I'll know in  
>>> a while
>>> if
>>> my config boots.
>>
>>
>> I successfully booted 3.4-rc7 with this change on rp3440 (4 cpu  
>> smp).  My
>> build also
>> included cache and other fixes that are being discussed on the  
>> parisc list.
>>
>> Dave
>
> Hi David
>
> Can I download a series of your PA-RISC patches somewhere?
>
> I applied this http://www.spinics.net/lists/linux-parisc/ 
> msg03352.html and
> it improved stability for me (I had no gcc crashes since that, only
> about two aptitude crashes).
>
> How stable is it for you? Do you have some random crashes or not?


Attached are my latest patch sets for linux-stable 3.4 and 3.5 branches.
There is no place to to download them directly.  I added Jiri Kosina's
personality fix today to the 3.5 patch set.  Otherwise, they are  
similar.

In general, stability with 3.4 has been pretty good.  I just started  
testing
3.5 a couple of days ago.  I went about three weeks without a random
crash with 3.4 after I removed Al Viro's restart patch.  It was causing
problems with irq handling.

This is on 64-bit rp3440.  I have been using it to build debian unstable
and test GCC 4.8.  So, the machine gets a fair bit of exercise.  In  
the last
little while, it has been pretty easy to keep up with the changes in  
unstable.

Sorry, I haven't had time to submit my changes.  Some of the cache fixes
are a bit hard to explain.

Dave
--
John David Anglin	dave.anglin@bell.net



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diff --git a/arch/parisc/hpux/gate.S b/arch/parisc/hpux/gate.S
index 38a1c1b..8e52a3b 100644
--- a/arch/parisc/hpux/gate.S
+++ b/arch/parisc/hpux/gate.S
@@ -72,6 +72,7 @@ ENTRY(hpux_gateway_page)
 	STREG	%r27, TASK_PT_GR27(%r1)		/* user dp */
 	STREG   %r28, TASK_PT_GR28(%r1)         /* return value 0 */
 	STREG   %r28, TASK_PT_ORIG_R28(%r1)     /* return value 0 (saved for signals) */
+	STREG	%r0, TASK_PT_ORIG_R28(%r1)	/* don't prohibit restarts */
 	STREG   %r29, TASK_PT_GR29(%r1)         /* 8th argument */
 	STREG	%r31, TASK_PT_GR31(%r1)		/* preserve syscall return ptr */
 	
diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 9f21ab0..79f694f 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -115,7 +115,9 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 {
 	if (PageAnon(page)) {
 		flush_tlb_page(vma, vmaddr);
+		preempt_disable();
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
+		preempt_enable();
 	}
 }
 
diff --git a/arch/parisc/include/asm/compat_rt_sigframe.h b/arch/parisc/include/asm/compat_rt_sigframe.h
deleted file mode 100644
index 81bec28..0000000
--- a/arch/parisc/include/asm/compat_rt_sigframe.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#include<linux/compat.h>
-#include<linux/compat_siginfo.h>
-#include<asm/compat_ucontext.h>
-
-#ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-#define _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-
-/* In a deft move of uber-hackery, we decide to carry the top half of all
- * 64-bit registers in a non-portable, non-ABI, hidden structure.
- * Userspace can read the hidden structure if it *wants* but is never
- * guaranteed to be in the same place. Infact the uc_sigmask from the 
- * ucontext_t structure may push the hidden register file downards
- */
-struct compat_regfile {
-	/* Upper half of all the 64-bit registers that were truncated
-	   on a copy to a 32-bit userspace */
-	compat_int_t rf_gr[32];
-	compat_int_t rf_iasq[2];
-	compat_int_t rf_iaoq[2];
-	compat_int_t rf_sar;
-};
-
-#define COMPAT_SIGRETURN_TRAMP 4
-#define COMPAT_SIGRESTARTBLOCK_TRAMP 5 
-#define COMPAT_TRAMP_SIZE (COMPAT_SIGRETURN_TRAMP + COMPAT_SIGRESTARTBLOCK_TRAMP)
-
-struct compat_rt_sigframe {
-	/* XXX: Must match trampoline size in arch/parisc/kernel/signal.c 
-	        Secondary to that it must protect the ERESTART_RESTARTBLOCK
-		trampoline we left on the stack (we were bad and didn't 
-		change sp so we could run really fast.) */
-	compat_uint_t tramp[COMPAT_TRAMP_SIZE];
-	compat_siginfo_t info;
-	struct compat_ucontext uc;
-	/* Hidden location of truncated registers, *must* be last. */
-	struct compat_regfile regs; 
-};
-
-/*
- * The 32-bit ABI wants at least 48 bytes for a function call frame:
- * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of
- * which Linux/parisc uses is sp-20 for the saved return pointer...)
- * Then, the stack pointer must be rounded to a cache line (64 bytes).
- */
-#define SIGFRAME32		64
-#define FUNCTIONCALLFRAME32	48
-#define PARISC_RT_SIGFRAME_SIZE32					\
-	(((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
-
-#endif
diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index e67eb9c..31835b9 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -1,9 +1,10 @@
 #ifndef _PARISC_MMZONE_H
 #define _PARISC_MMZONE_H
 
+#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
+
 #ifdef CONFIG_DISCONTIGMEM
 
-#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
 extern int npmem_ranges;
 
 struct node_map_data {
@@ -60,7 +61,5 @@ static inline int pfn_valid(int pfn)
 	return 0;
 }
 
-#else /* !CONFIG_DISCONTIGMEM */
-#define MAX_PHYSMEM_RANGES 	1 
 #endif
 #endif /* _PARISC_MMZONE_H */
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index 4e0e7db..d9812d8 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -21,15 +21,27 @@
 #include <asm/types.h>
 #include <asm/cache.h>
 
-#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define clear_page(page)	clear_page_asm((void *)(page))
+#define copy_page(to,from)	copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
+void clear_page_asm(void *page);
+void copy_page_asm(void *to, void *from);
+void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+
+// #define CONFIG_PARISC_TMPALIAS
+
+#ifdef CONFIG_PARISC_TMPALIAS
+void clear_user_highpage(struct page *page, unsigned long vaddr);
+#define clear_user_highpage clear_user_highpage
+struct vm_area_struct;
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma);
+#define __HAVE_ARCH_COPY_USER_HIGHPAGE
+#endif
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index ee99f23..563724d 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -12,11 +12,10 @@
 
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
+#include <linux/mm_types.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
-struct vm_area_struct;
-
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -40,7 +39,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm,addr,ptep, pteval)                        \
+        do{                                                     \
+                set_pte(ptep,pteval);                           \
+                purge_tlb_entries(mm,addr);                     \
+        } while(0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -462,10 +468,13 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #ifdef CONFIG_SMP
 	unsigned long new, old;
 
+	/* ??? This might be racy because the page table updates in
+	   entry.S don't use the same lock.  */
 	do {
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/include/asm/real.h b/arch/parisc/include/asm/real.h
deleted file mode 100644
index 82acb25..0000000
--- a/arch/parisc/include/asm/real.h
+++ /dev/null
@@ -1,5 +0,0 @@
-#ifndef _PARISC_REAL_H
-#define _PARISC_REAL_H
-
-
-#endif
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index dcd5510..5df1597 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -141,6 +141,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -230,6 +231,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 9d18189..795d392 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -267,9 +267,11 @@ static inline void
 __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 		   unsigned long physaddr)
 {
+	preempt_disable();
 	flush_dcache_page_asm(physaddr, vmaddr);
 	if (vma->vm_flags & VM_EXEC)
 		flush_icache_page_asm(physaddr, vmaddr);
+	preempt_enable();
 }
 
 void flush_dcache_page(struct page *page)
@@ -315,7 +317,7 @@ void flush_dcache_page(struct page *page)
 		flush_tlb_page(mpnt, addr);
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
+			if (old_addr && parisc_requires_coherency())
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
 			old_addr = addr;
 		}
@@ -330,17 +332,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -374,20 +365,9 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
 
-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
-
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
-{
-	unsigned long flags;
-
-	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start(flags);
-	pdtlb_kernel(page);
-	purge_tlb_end(flags);
-	clear_user_page_asm(page, vaddr);
-}
-EXPORT_SYMBOL(clear_user_page);
+extern void purge_kernel_dcache_page_asm(unsigned long);
+extern void clear_user_page_asm(void *, unsigned long);
+extern void copy_user_page_asm(void *, void *, unsigned long);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
@@ -400,11 +380,26 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
+void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
+{
+	clear_page_asm(vto);
+	if (!parisc_requires_coherency())
+		flush_kernel_dcache_page_asm(vto);
+}
+EXPORT_SYMBOL(clear_user_page);
+
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-		    struct page *pg)
+	struct page *pg)
 {
-	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
+	/* Copy using kernel mapping.  No coherency is needed
+	   (all in kmap/kunmap) on machines that don't support
+	   non-equivalent aliasing.  However, the `from' page
+	   needs to be flushed before it can be accessed through
+	   the kernel mapping. */
+	preempt_disable();
+	flush_dcache_page_asm(__pa(vfrom), vaddr);
+	preempt_enable();
+	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
 		flush_kernel_dcache_page_asm(vto);
 }
@@ -420,6 +415,25 @@ void kunmap_parisc(void *addr)
 EXPORT_SYMBOL(kunmap_parisc);
 #endif
 
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags, sid;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	/* Disable preemption while we play with %sr1.  */
+	preempt_disable();
+	sid = mfsp(1);
+	mtsp(mm->context,1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+	mtsp(sid,1);
+	preempt_enable();
+}
+
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {
@@ -459,8 +473,65 @@ void flush_cache_all(void)
 	on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
 }
 
+static inline unsigned long mm_total_size(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long usize = 0;
+
+	for (vma = mm->mmap; vma; vma = vma->vm_next)
+		usize += vma->vm_end - vma->vm_start;
+	return usize;
+}
+
+static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
+{
+	pte_t *ptep = NULL;
+
+        if (!pgd_none(*pgd)) {
+                pud_t *pud = pud_offset(pgd, addr);
+                if (!pud_none(*pud)) {
+                        pmd_t *pmd = pmd_offset(pud, addr);
+                        if (!pmd_none(*pmd)) {
+                                ptep = pte_offset_map(pmd, addr);
+                        }
+                }
+        }
+	return ptep;
+}
+
 void flush_cache_mm(struct mm_struct *mm)
 {
+	/* Flushing the whole cache on each cpu takes forever on
+	   rp3440, etc.  So, avoid it if the mm isn't too big.
+	   Note: This approach is faster than a range flush when the
+	   context is current, and it works even when non current.  */
+	if (mm_total_size(mm) < parisc_cache_flush_threshold) {
+		struct vm_area_struct *vma;
+
+		if (mm->context == mfsp(3)) {
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				flush_user_dcache_range_asm(vma->vm_start, vma->vm_end);
+				if(vma->vm_flags & VM_EXEC)
+					flush_user_icache_range_asm(vma->vm_start, vma->vm_end);
+			}
+		} else {
+			pgd_t *pgd = mm->pgd;
+
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				unsigned long addr;
+
+				for (addr = vma->vm_start; addr < vma->vm_end; addr += PAGE_SIZE) {
+					pte_t *ptep = get_ptep(pgd, addr);
+					if (ptep != NULL) {
+						pte_t pte = *ptep;
+						__flush_cache_page(vma, addr, page_to_phys(pte_page(pte)));
+					}
+				}
+			}
+		}
+		return;
+	}
+
 #ifdef CONFIG_SMP
 	flush_cache_all();
 #else
@@ -486,20 +557,34 @@ flush_user_icache_range(unsigned long start, unsigned long end)
 		flush_instruction_cache();
 }
 
-
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	int sr3;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
+	if ((end - start) < parisc_cache_flush_threshold) {
+		if (vma->vm_mm->context == mfsp(3)) {
+			flush_user_dcache_range_asm(start,end);
+			if(vma->vm_flags & VM_EXEC)
+				flush_user_icache_range_asm(start,end);
+		} else {
+			unsigned long addr;
+			pgd_t *pgd = vma->vm_mm->pgd;
+
+			for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+				pte_t *ptep = get_ptep(pgd, addr);
+				if (ptep != NULL) {
+					pte_t pte = *ptep;
+					flush_cache_page(vma, addr, pte_pfn(pte));
+				}
+			}
+		}
 	} else {
+#ifdef CONFIG_SMP
 		flush_cache_all();
+#else
+		flush_cache_all_local();
+#endif
 	}
 }
 
@@ -512,3 +597,67 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
+
+#ifdef CONFIG_PARISC_TMPALIAS
+
+void clear_user_highpage(struct page *page, unsigned long vaddr)
+{
+	void *vto;
+	unsigned long flags;
+
+	/* Clear using TMPALIAS region.  The page doesn't need to
+	   be flushed but the kernel mapping needs to be purged.  */
+
+	vto = kmap_atomic(page, KM_USER0);
+
+	/* The PA-RISC 2.0 Architecture book states on page F-6:
+	   "Before a write-capable translation is enabled, *all*
+	   non-equivalently-aliased translations must be removed
+	   from the page table and purged from the TLB.  (Note
+	   that the caches are not required to be flushed at this
+	   time.)  Before any non-equivalent aliased translation
+	   is re-enabled, the virtual address range for the writeable
+	   page (the entire page) must be flushed from the cache,
+	   and the write-capable translation removed from the page
+	   table and purged from the TLB."  */
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	purge_tlb_end(flags);
+	preempt_disable();
+	clear_user_page_asm(vto, vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma)
+{
+	void *vfrom, *vto;
+	unsigned long flags;
+
+	/* Copy using TMPALIAS region.  This has the advantage
+	   that the `from' page doesn't need to be flushed.  However,
+	   the `to' page must be flushed in copy_user_page_asm since
+	   it can be used to bring in executable code.  */
+
+	vfrom = kmap_atomic(from, KM_USER0);
+	vto = kmap_atomic(to, KM_USER1);
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	pdtlb_kernel(vfrom);
+	purge_tlb_end(flags);
+	preempt_disable();
+	copy_user_page_asm(vto, vfrom, vaddr);
+	flush_dcache_page_asm(__pa(vto), vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER1); */
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+#endif /* CONFIG_PARISC_TMPALIAS */
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 07ef351..e15ebf5 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -483,7 +483,7 @@
 	 * B <-> _PAGE_DMB (memory break)
 	 *
 	 * Then incredible subtlety: The access rights are
-	 * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
+	 * _PAGE_GATEWAY, _PAGE_EXEC and _PAGE_WRITE
 	 * See 3-14 of the parisc 2.0 manual
 	 *
 	 * Finally, _PAGE_READ goes in the top bit of PL1 (so we
@@ -493,7 +493,7 @@
 
 	/* PAGE_USER indicates the page can be read with user privileges,
 	 * so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1
-	 * contains _PAGE_READ */
+	 * contains _PAGE_READ) */
 	extrd,u,*=      \pte,_PAGE_USER_BIT+32,1,%r0
 	depdi		7,11,3,\prot
 	/* If we're a gateway page, drop PL2 back to zero for promotion
@@ -1785,9 +1785,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1817,7 +1817,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1836,8 +1836,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1860,7 +1861,7 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..8094d3e 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
-	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+	.flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
-	.flags = IRQF_DISABLED | IRQF_PERCPU,
+	.flags = IRQF_PERCPU,
 };
 #endif
 
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
 {
 	local_irq_disable();	/* PARANOID - should already be disabled */
 	mtctl(~0UL, 23);	/* EIRR : clear all pending external intr */
-	claim_cpu_irqs();
 #ifdef CONFIG_SMP
-	if (!cpu_eiem)
+	if (!cpu_eiem) {
+		claim_cpu_irqs();
 		cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+	}
 #else
+	claim_cpu_irqs();
 	cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 5d7218a..ed401dd 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -199,7 +199,6 @@ ENTRY(flush_instruction_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
 	load32		cache_info, %r1
 
 	/* Flush Instruction Cache */
@@ -208,20 +207,46 @@ ENTRY(flush_instruction_cache_local)
 	LDREG		ICACHE_STRIDE(%r1), %arg1
 	LDREG		ICACHE_COUNT(%r1), %arg2
 	LDREG		ICACHE_LOOP(%r1), %arg3
-	rsm             PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fioneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fisync	/* If loop < 0, do sync */
 
 fimanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fimanyloop	/* Adjusted inner loop decr */
-	fice            %r0(%sr1, %arg0)
-	fice,m		%arg1(%sr1, %arg0)	/* Last fice and addr adjust */
+	fice            %r0(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)	/* Last fice and addr adjust */
 	movb,tr		%arg3, %r31, fimanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fisync	/* Outer loop decr */
 
 fioneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fioneloop	/* Outer loop count decr */
-	fice,m		%arg1(%sr1, %arg0)	/* Fice for one loop */
+	/* Some implementations may flush with a single fice instruction */
+	cmpib,COND(>>=),n	15, %arg2, fioneloop2
+
+fioneloop1:
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	addib,COND(>)	-16, %arg2, fioneloop1
+	fice,m		%arg1(%sr4, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fisync	/* Predict branch taken */
+
+fioneloop2:
+	addib,COND(>)	-1, %arg2, fioneloop2	/* Outer loop count decr */
+	fice,m		%arg1(%sr4, %arg0)	/* Fice for one loop */
 
 fisync:
 	sync
@@ -240,8 +265,7 @@ ENTRY(flush_data_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
-	load32 		cache_info, %r1
+	load32		cache_info, %r1
 
 	/* Flush Data Cache */
 
@@ -249,20 +273,46 @@ ENTRY(flush_data_cache_local)
 	LDREG		DCACHE_STRIDE(%r1), %arg1
 	LDREG		DCACHE_COUNT(%r1), %arg2
 	LDREG		DCACHE_LOOP(%r1), %arg3
-	rsm		PSW_SM_I, %r22
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fdoneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fdsync	/* If loop < 0, do sync */
 
 fdmanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fdmanyloop	/* Adjusted inner loop decr */
-	fdce		%r0(%sr1, %arg0)
-	fdce,m		%arg1(%sr1, %arg0)	/* Last fdce and addr adjust */
+	fdce		%r0(%arg0)
+	fdce,m		%arg1(%arg0)	/* Last fdce and addr adjust */
 	movb,tr		%arg3, %r31, fdmanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fdsync	/* Outer loop decr */
 
 fdoneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fdoneloop	/* Outer loop count decr */
-	fdce,m		%arg1(%sr1, %arg0)	/* Fdce for one loop */
+	/* Some implementations may flush with a single fdce instruction */
+	cmpib,COND(>>=),n	15, %arg2, fdoneloop2
+
+fdoneloop1:
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	addib,COND(>)	-16, %arg2, fdoneloop1
+	fdce,m		%arg1(%arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fdsync	/* Predict branch taken */
+
+fdoneloop2:
+	addib,COND(>)	-1, %arg2, fdoneloop2	/* Outer loop count decr */
+	fdce,m		%arg1(%arg0)	/* Fdce for one loop */
 
 fdsync:
 	syncdma
@@ -277,7 +327,104 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+/* Macros to serialize TLB purge operations on SMP.  */
+
+	.macro	tlb_lock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock,%r1
+	ldo		R%pa_tlb_lock(%r1),\la
+	rsm		PSW_SM_I,\flags
+1:	LDCW		0(\la),\tmp
+	cmpib,<>,n	0,\tmp,3f
+2:	ldw		0(\la),\tmp
+	cmpb,<>		%r0,\tmp,1b
+	nop
+	b,n		2b
+3:
+#endif
+	.endm
+
+	.macro	tlb_unlock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldi		1,\tmp
+	stw		\tmp,0(\la)
+	mtsm		\flags
+#endif
+	.endm
+
+/* Clear page using kernel mapping.  */
+
+ENTRY(clear_page_asm)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+#ifdef CONFIG_64BIT
+
+	/* Unroll the loop.  */
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:
+	std		%r0, 0(%r26)
+	std		%r0, 8(%r26)
+	std		%r0, 16(%r26)
+	std		%r0, 24(%r26)
+	std		%r0, 32(%r26)
+	std		%r0, 40(%r26)
+	std		%r0, 48(%r26)
+	std		%r0, 56(%r26)
+	std		%r0, 64(%r26)
+	std		%r0, 72(%r26)
+	std		%r0, 80(%r26)
+	std		%r0, 88(%r26)
+	std		%r0, 96(%r26)
+	std		%r0, 104(%r26)
+	std		%r0, 112(%r26)
+	std		%r0, 120(%r26)
+
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
+
+#else
+
+	/*
+	 * Note that until (if) we start saving the full 64-bit register
+	 * values on interrupt, we can't use std on a 32 bit kernel.
+	 */
+	ldi		(PAGE_SIZE / 64), %r1
+
+1:
+	stw		%r0, 0(%r26)
+	stw		%r0, 4(%r26)
+	stw		%r0, 8(%r26)
+	stw		%r0, 12(%r26)
+	stw		%r0, 16(%r26)
+	stw		%r0, 20(%r26)
+	stw		%r0, 24(%r26)
+	stw		%r0, 28(%r26)
+	stw		%r0, 32(%r26)
+	stw		%r0, 36(%r26)
+	stw		%r0, 40(%r26)
+	stw		%r0, 44(%r26)
+	stw		%r0, 48(%r26)
+	stw		%r0, 52(%r26)
+	stw		%r0, 56(%r26)
+	stw		%r0, 60(%r26)
+
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		64(%r26), %r26
+#endif
+	bv		%r0(%r2)
+	nop
+	.exit
+
+	.procend
+ENDPROC(clear_page_asm)
+
+/* Copy page using kernel mapping.  */
+
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -285,18 +432,14 @@ ENTRY(copy_user_page_asm)
 #ifdef CONFIG_64BIT
 	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
 	 * Unroll the loop by hand and arrange insn appropriately.
-	 * GCC probably can do this just as well.
+	 * Prefetch doesn't improve performance on rp3440.
+	 * GCC probably can do this just as well...
 	 */
 
-	ldd		0(%r25), %r19
 	ldi		(PAGE_SIZE / 128), %r1
 
-	ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
-	ldw		128(%r25), %r0		/* prefetch 2 */
-
-1:	ldd		8(%r25), %r20
-	ldw		192(%r25), %r0		/* prefetch 3 */
-	ldw		256(%r25), %r0		/* prefetch 4 */
+1:	ldd		0(%r25), %r19
+	ldd		8(%r25), %r20
 
 	ldd		16(%r25), %r21
 	ldd		24(%r25), %r22
@@ -330,20 +473,16 @@ ENTRY(copy_user_page_asm)
 
 	ldd		112(%r25), %r21
 	ldd		120(%r25), %r22
+	ldo		128(%r25), %r25
 	std		%r19, 96(%r26)
 	std		%r20, 104(%r26)
 
-	ldo		128(%r25), %r25
 	std		%r21, 112(%r26)
 	std		%r22, 120(%r26)
-	ldo		128(%r26), %r26
 
-	/* conditional branches nullify on forward taken branch, and on
-	 * non-taken backward branch. Note that .+4 is a backwards branch.
-	 * The ldd should only get executed if the branch is taken.
-	 */
-	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
-	ldd		0(%r25), %r19		/* start next loads */
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
 
 #else
 
@@ -399,7 +538,7 @@ ENTRY(copy_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,8 +561,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
-
 	/*
 	 * We can't do this since copy_user_page is used to bring in
 	 * file data that might have instructions. Since the data would
@@ -435,6 +572,7 @@ ENDPROC(copy_user_page_asm)
 	 * use it if more information is passed into copy_user_page().
 	 * Have to do some measurements to see if it is worthwhile to
 	 * lobby for such a change.
+	 *
 	 */
 
 ENTRY(copy_user_page_asm)
@@ -442,16 +580,21 @@ ENTRY(copy_user_page_asm)
 	.callinfo NO_CALLS
 	.entry
 
+	/* Convert virtual `to' and `from' addresses to physical addresses.
+	   Move `from' physical address to non shadowed register.  */
 	ldil		L%(__PAGE_OFFSET), %r1
 	sub		%r26, %r1, %r26
-	sub		%r25, %r1, %r23		/* move physical addr into non shadowed reg */
+	sub		%r25, %r1, %r23
 
 	ldil		L%(TMPALIAS_MAP_START), %r28
 	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
-	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+#endif
+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
+	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
@@ -466,10 +609,76 @@ ENTRY(copy_user_page_asm)
 
 	/* Purge any old translations */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+	pdtlb,l		0(%r29)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
-	ldi		64, %r1
+#ifdef CONFIG_64BIT
+	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
+	 * Unroll the loop by hand and arrange insn appropriately.
+	 * GCC probably can do this just as well.
+	 */
+
+	ldd		0(%r29), %r19
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:	ldd		8(%r29), %r20
+
+	ldd		16(%r29), %r21
+	ldd		24(%r29), %r22
+	std		%r19, 0(%r28)
+	std		%r20, 8(%r28)
+
+	ldd		32(%r29), %r19
+	ldd		40(%r29), %r20
+	std		%r21, 16(%r28)
+	std		%r22, 24(%r28)
+
+	ldd		48(%r29), %r21
+	ldd		56(%r29), %r22
+	std		%r19, 32(%r28)
+	std		%r20, 40(%r28)
+
+	ldd		64(%r29), %r19
+	ldd		72(%r29), %r20
+	std		%r21, 48(%r28)
+	std		%r22, 56(%r28)
+
+	ldd		80(%r29), %r21
+	ldd		88(%r29), %r22
+	std		%r19, 64(%r28)
+	std		%r20, 72(%r28)
+
+	ldd		 96(%r29), %r19
+	ldd		104(%r29), %r20
+	std		%r21, 80(%r28)
+	std		%r22, 88(%r28)
+
+	ldd		112(%r29), %r21
+	ldd		120(%r29), %r22
+	std		%r19, 96(%r28)
+	std		%r20, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r21, 112(%r28)
+	std		%r22, 120(%r28)
+	ldo		128(%r28), %r28
+
+	/* conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 * The ldd should only get executed if the branch is taken.
+	 */
+	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
+	ldd		0(%r29), %r19		/* start next loads */
+
+#else
+	ldi		(PAGE_SIZE / 64), %r1
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,9 +689,7 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
+1:	ldw		0(%r29), %r19
 	ldw		4(%r29), %r20
 	ldw		8(%r29), %r21
 	ldw		12(%r29), %r22
@@ -515,8 +722,10 @@ ENTRY(copy_user_page_asm)
 	stw		%r21, 56(%r28)
 	stw		%r22, 60(%r28)
 	ldo		64(%r28), %r28
+
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
+#endif
 
 	bv		%r0(%r2)
 	nop
@@ -524,9 +733,8 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -550,7 +758,13 @@ ENTRY(__clear_user_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
@@ -580,8 +794,7 @@ ENTRY(__clear_user_page_asm)
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
-	stw		%r0, 0(%r28)
+1:	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
 	stw		%r0, 12(%r28)
@@ -606,7 +819,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_dcache_page_asm)
 	.proc
@@ -630,7 +843,13 @@ ENTRY(flush_dcache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), %r1
@@ -663,8 +882,17 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		%r1(%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pdtlb		(%r25)
+	nop
 	.exit
 
 	.procend
@@ -692,7 +920,13 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
-	pitlb		(%sr4,%r28)
+#ifdef CONFIG_PA20
+	pitlb,l         %r0(%sr4,%r28)
+#else
+	tlb_lock        %r20,%r21,%r22
+	pitlb           (%sr4,%r28)
+	tlb_unlock      %r20,%r21,%r22
+#endif
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -727,8 +961,17 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r1(%sr4,%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pitlb,l         %r0(%sr4,%r25)
+#else
+	tlb_lock        %r20,%r21,%r22
+	pitlb           (%sr4,%r25)
+	tlb_unlock      %r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pitlb		(%sr4,%r25)
+	nop
 	.exit
 
 	.procend
@@ -777,7 +1020,7 @@ ENTRY(flush_kernel_dcache_page_asm)
 	.procend
 ENDPROC(flush_kernel_dcache_page_asm)
 
-ENTRY(purge_kernel_dcache_page)
+ENTRY(purge_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -817,7 +1060,7 @@ ENTRY(purge_kernel_dcache_page)
 	.exit
 
 	.procend
-ENDPROC(purge_kernel_dcache_page)
+ENDPROC(purge_kernel_dcache_page_asm)
 
 ENTRY(flush_user_dcache_range_asm)
 	.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index a7bb757..25835d8 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -158,5 +158,6 @@ extern void _mcount(void);
 EXPORT_SYMBOL(_mcount);
 #endif
 
-/* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+/* from pacache.S -- needed for clear/copy_page */
+EXPORT_SYMBOL(clear_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 12c1ed3..5dd1059 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -314,7 +314,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #if DEBUG_SIG
 	/* Assert that we're flushing in the correct space... */
 	{
-		int sid;
+		unsigned long sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
 		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
 		       sid, frame->tramp);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..f0cb56e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 82a52b2..837c602 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -180,9 +180,10 @@ linux_gateway_entry:
 
 	/* Are we being ptraced? */
 	mfctl	%cr30, %r1
-	LDREG	TI_TASK(%r1),%r1
-	ldw	TASK_PTRACE(%r1), %r1
-	bb,<,n	%r1,31,.Ltracesys
+	LDREG   TI_FLAGS(%r1),%r1
+	ldi	(_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_BLOCKSTEP), %r19
+	and,COND(=) %r19, %r1, %r0
+	b,n	.Ltracesys
 	
 	/* Note!  We cannot use the syscall table that is mapped
 	nearby since the gateway page is mapped execute-only. */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 70e105d..4a24ba7 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -77,7 +77,7 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 6) < cpt) {
+	if ((cycles_elapsed >> 7) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
diff --git a/arch/parisc/math-emu/cnv_float.h b/arch/parisc/math-emu/cnv_float.h
index 9071e09..37299c7 100644
--- a/arch/parisc/math-emu/cnv_float.h
+++ b/arch/parisc/math-emu/cnv_float.h
@@ -347,16 +347,15 @@
     Sgl_isinexact_to_fix(sgl_value,exponent)
 
 #define Duint_from_sgl_mantissa(sgl_value,exponent,dresultA,dresultB)	\
-  {Sall(sgl_value) <<= SGL_EXP_LENGTH;  /*  left-justify  */		\
+  {unsigned int val = Sall(sgl_value) << SGL_EXP_LENGTH;		\
     if (exponent <= 31) {						\
     	Dintp1(dresultA) = 0;						\
-    	Dintp2(dresultB) = (unsigned)Sall(sgl_value) >> (31 - exponent); \
+    	Dintp2(dresultB) = val >> (31 - exponent);			\
     }									\
     else {								\
-    	Dintp1(dresultA) = Sall(sgl_value) >> (63 - exponent);		\
-    	Dintp2(dresultB) = Sall(sgl_value) << (exponent - 31);		\
+    	Dintp1(dresultA) = val >> (63 - exponent);			\
+    	Dintp2(dresultB) = exponent <= 62 ? val << (exponent - 31) : 0;	\
     }									\
-    Sall(sgl_value) >>= SGL_EXP_LENGTH;  /* return to original */	\
   }
 
 #define Duint_setzero(dresultA,dresultB) 	\
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 18162ce..524bf5a 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -175,10 +175,12 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	struct mm_struct *mm = tsk->mm;
 	unsigned long acc_type;
 	int fault;
+	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	if (in_atomic() || !mm)
 		goto no_context;
 
+retry:
 	down_read(&mm->mmap_sem);
 	vma = find_vma_prev(mm, address, &prev_vma);
 	if (!vma || address < vma->vm_start)
@@ -201,7 +203,12 @@ good_area:
 	 * fault.
 	 */
 
-	fault = handle_mm_fault(mm, vma, address, (acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0);
+	fault = handle_mm_fault(mm, vma, address,
+		flags | ((acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0));
+
+	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+		return;
+
 	if (unlikely(fault & VM_FAULT_ERROR)) {
 		/*
 		 * We hit a shared mapping outside of the file, or some
@@ -214,10 +221,22 @@ good_area:
 			goto bad_area;
 		BUG();
 	}
-	if (fault & VM_FAULT_MAJOR)
-		current->maj_flt++;
-	else
-		current->min_flt++;
+	if (flags & FAULT_FLAG_ALLOW_RETRY) {
+		if (fault & VM_FAULT_MAJOR)
+			current->maj_flt++;
+		else
+			current->min_flt++;
+		if (fault & VM_FAULT_RETRY) {
+			flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+			/* No need to up_read(&mm->mmap_sem) as we would
+			 * have already released it in __lock_page_or_retry
+			 * in mm/filemap.c.
+			 */
+
+			goto retry;
+		}
+	}
 	up_read(&mm->mmap_sem);
 	return;
 
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 3914c1e..90139f0 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -575,6 +575,7 @@ out_eoi:
 void
 handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 {
+	struct irqaction *action;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	kstat_incr_irqs_this_cpu(irq, desc);
@@ -582,7 +583,9 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 	if (chip->irq_ack)
 		chip->irq_ack(&desc->irq_data);
 
-	handle_irq_event_percpu(desc, desc->action);
+	action = desc->action;
+	if (action)
+		handle_irq_event_percpu(desc, action);
 
 	if (chip->irq_eoi)
 		chip->irq_eoi(&desc->irq_data);

--Apple-Mail-26-492618903
Content-Disposition: attachment; filename="linux-stable-3.5-20120801.d.txt"
Content-Type: text/plain; x-unix-mode=0644;
	name="linux-stable-3.5-20120801.d.txt"
Content-Transfer-Encoding: 7bit

diff --git a/arch/parisc/hpux/gate.S b/arch/parisc/hpux/gate.S
index 38a1c1b..8e52a3b 100644
--- a/arch/parisc/hpux/gate.S
+++ b/arch/parisc/hpux/gate.S
@@ -72,6 +72,7 @@ ENTRY(hpux_gateway_page)
 	STREG	%r27, TASK_PT_GR27(%r1)		/* user dp */
 	STREG   %r28, TASK_PT_GR28(%r1)         /* return value 0 */
 	STREG   %r28, TASK_PT_ORIG_R28(%r1)     /* return value 0 (saved for signals) */
+	STREG	%r0, TASK_PT_ORIG_R28(%r1)	/* don't prohibit restarts */
 	STREG   %r29, TASK_PT_GR29(%r1)         /* 8th argument */
 	STREG	%r31, TASK_PT_GR31(%r1)		/* preserve syscall return ptr */
 	
diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 9f21ab0..79f694f 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -115,7 +115,9 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 {
 	if (PageAnon(page)) {
 		flush_tlb_page(vma, vmaddr);
+		preempt_disable();
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
+		preempt_enable();
 	}
 }
 
diff --git a/arch/parisc/include/asm/compat_rt_sigframe.h b/arch/parisc/include/asm/compat_rt_sigframe.h
deleted file mode 100644
index 81bec28..0000000
--- a/arch/parisc/include/asm/compat_rt_sigframe.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#include<linux/compat.h>
-#include<linux/compat_siginfo.h>
-#include<asm/compat_ucontext.h>
-
-#ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-#define _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-
-/* In a deft move of uber-hackery, we decide to carry the top half of all
- * 64-bit registers in a non-portable, non-ABI, hidden structure.
- * Userspace can read the hidden structure if it *wants* but is never
- * guaranteed to be in the same place. Infact the uc_sigmask from the 
- * ucontext_t structure may push the hidden register file downards
- */
-struct compat_regfile {
-	/* Upper half of all the 64-bit registers that were truncated
-	   on a copy to a 32-bit userspace */
-	compat_int_t rf_gr[32];
-	compat_int_t rf_iasq[2];
-	compat_int_t rf_iaoq[2];
-	compat_int_t rf_sar;
-};
-
-#define COMPAT_SIGRETURN_TRAMP 4
-#define COMPAT_SIGRESTARTBLOCK_TRAMP 5 
-#define COMPAT_TRAMP_SIZE (COMPAT_SIGRETURN_TRAMP + COMPAT_SIGRESTARTBLOCK_TRAMP)
-
-struct compat_rt_sigframe {
-	/* XXX: Must match trampoline size in arch/parisc/kernel/signal.c 
-	        Secondary to that it must protect the ERESTART_RESTARTBLOCK
-		trampoline we left on the stack (we were bad and didn't 
-		change sp so we could run really fast.) */
-	compat_uint_t tramp[COMPAT_TRAMP_SIZE];
-	compat_siginfo_t info;
-	struct compat_ucontext uc;
-	/* Hidden location of truncated registers, *must* be last. */
-	struct compat_regfile regs; 
-};
-
-/*
- * The 32-bit ABI wants at least 48 bytes for a function call frame:
- * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of
- * which Linux/parisc uses is sp-20 for the saved return pointer...)
- * Then, the stack pointer must be rounded to a cache line (64 bytes).
- */
-#define SIGFRAME32		64
-#define FUNCTIONCALLFRAME32	48
-#define PARISC_RT_SIGFRAME_SIZE32					\
-	(((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
-
-#endif
diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index e67eb9c..31835b9 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -1,9 +1,10 @@
 #ifndef _PARISC_MMZONE_H
 #define _PARISC_MMZONE_H
 
+#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
+
 #ifdef CONFIG_DISCONTIGMEM
 
-#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
 extern int npmem_ranges;
 
 struct node_map_data {
@@ -60,7 +61,5 @@ static inline int pfn_valid(int pfn)
 	return 0;
 }
 
-#else /* !CONFIG_DISCONTIGMEM */
-#define MAX_PHYSMEM_RANGES 	1 
 #endif
 #endif /* _PARISC_MMZONE_H */
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index 4e0e7db..d9812d8 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -21,15 +21,27 @@
 #include <asm/types.h>
 #include <asm/cache.h>
 
-#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define clear_page(page)	clear_page_asm((void *)(page))
+#define copy_page(to,from)	copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
+void clear_page_asm(void *page);
+void copy_page_asm(void *to, void *from);
+void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+
+// #define CONFIG_PARISC_TMPALIAS
+
+#ifdef CONFIG_PARISC_TMPALIAS
+void clear_user_highpage(struct page *page, unsigned long vaddr);
+#define clear_user_highpage clear_user_highpage
+struct vm_area_struct;
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma);
+#define __HAVE_ARCH_COPY_USER_HIGHPAGE
+#endif
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index ee99f23..563724d 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -12,11 +12,10 @@
 
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
+#include <linux/mm_types.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
-struct vm_area_struct;
-
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -40,7 +39,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm,addr,ptep, pteval)                        \
+        do{                                                     \
+                set_pte(ptep,pteval);                           \
+                purge_tlb_entries(mm,addr);                     \
+        } while(0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -462,10 +468,13 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #ifdef CONFIG_SMP
 	unsigned long new, old;
 
+	/* ??? This might be racy because the page table updates in
+	   entry.S don't use the same lock.  */
 	do {
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/include/asm/real.h b/arch/parisc/include/asm/real.h
deleted file mode 100644
index 82acb25..0000000
--- a/arch/parisc/include/asm/real.h
+++ /dev/null
@@ -1,5 +0,0 @@
-#ifndef _PARISC_REAL_H
-#define _PARISC_REAL_H
-
-
-#endif
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index dcd5510..5df1597 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -141,6 +141,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -230,6 +231,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 9d18189..795d392 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -267,9 +267,11 @@ static inline void
 __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 		   unsigned long physaddr)
 {
+	preempt_disable();
 	flush_dcache_page_asm(physaddr, vmaddr);
 	if (vma->vm_flags & VM_EXEC)
 		flush_icache_page_asm(physaddr, vmaddr);
+	preempt_enable();
 }
 
 void flush_dcache_page(struct page *page)
@@ -315,7 +317,7 @@ void flush_dcache_page(struct page *page)
 		flush_tlb_page(mpnt, addr);
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
+			if (old_addr && parisc_requires_coherency())
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
 			old_addr = addr;
 		}
@@ -330,17 +332,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -374,20 +365,9 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
 
-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
-
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
-{
-	unsigned long flags;
-
-	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start(flags);
-	pdtlb_kernel(page);
-	purge_tlb_end(flags);
-	clear_user_page_asm(page, vaddr);
-}
-EXPORT_SYMBOL(clear_user_page);
+extern void purge_kernel_dcache_page_asm(unsigned long);
+extern void clear_user_page_asm(void *, unsigned long);
+extern void copy_user_page_asm(void *, void *, unsigned long);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
@@ -400,11 +380,26 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
+void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
+{
+	clear_page_asm(vto);
+	if (!parisc_requires_coherency())
+		flush_kernel_dcache_page_asm(vto);
+}
+EXPORT_SYMBOL(clear_user_page);
+
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-		    struct page *pg)
+	struct page *pg)
 {
-	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
+	/* Copy using kernel mapping.  No coherency is needed
+	   (all in kmap/kunmap) on machines that don't support
+	   non-equivalent aliasing.  However, the `from' page
+	   needs to be flushed before it can be accessed through
+	   the kernel mapping. */
+	preempt_disable();
+	flush_dcache_page_asm(__pa(vfrom), vaddr);
+	preempt_enable();
+	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
 		flush_kernel_dcache_page_asm(vto);
 }
@@ -420,6 +415,25 @@ void kunmap_parisc(void *addr)
 EXPORT_SYMBOL(kunmap_parisc);
 #endif
 
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags, sid;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	/* Disable preemption while we play with %sr1.  */
+	preempt_disable();
+	sid = mfsp(1);
+	mtsp(mm->context,1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+	mtsp(sid,1);
+	preempt_enable();
+}
+
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {
@@ -459,8 +473,65 @@ void flush_cache_all(void)
 	on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
 }
 
+static inline unsigned long mm_total_size(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long usize = 0;
+
+	for (vma = mm->mmap; vma; vma = vma->vm_next)
+		usize += vma->vm_end - vma->vm_start;
+	return usize;
+}
+
+static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
+{
+	pte_t *ptep = NULL;
+
+        if (!pgd_none(*pgd)) {
+                pud_t *pud = pud_offset(pgd, addr);
+                if (!pud_none(*pud)) {
+                        pmd_t *pmd = pmd_offset(pud, addr);
+                        if (!pmd_none(*pmd)) {
+                                ptep = pte_offset_map(pmd, addr);
+                        }
+                }
+        }
+	return ptep;
+}
+
 void flush_cache_mm(struct mm_struct *mm)
 {
+	/* Flushing the whole cache on each cpu takes forever on
+	   rp3440, etc.  So, avoid it if the mm isn't too big.
+	   Note: This approach is faster than a range flush when the
+	   context is current, and it works even when non current.  */
+	if (mm_total_size(mm) < parisc_cache_flush_threshold) {
+		struct vm_area_struct *vma;
+
+		if (mm->context == mfsp(3)) {
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				flush_user_dcache_range_asm(vma->vm_start, vma->vm_end);
+				if(vma->vm_flags & VM_EXEC)
+					flush_user_icache_range_asm(vma->vm_start, vma->vm_end);
+			}
+		} else {
+			pgd_t *pgd = mm->pgd;
+
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				unsigned long addr;
+
+				for (addr = vma->vm_start; addr < vma->vm_end; addr += PAGE_SIZE) {
+					pte_t *ptep = get_ptep(pgd, addr);
+					if (ptep != NULL) {
+						pte_t pte = *ptep;
+						__flush_cache_page(vma, addr, page_to_phys(pte_page(pte)));
+					}
+				}
+			}
+		}
+		return;
+	}
+
 #ifdef CONFIG_SMP
 	flush_cache_all();
 #else
@@ -486,20 +557,34 @@ flush_user_icache_range(unsigned long start, unsigned long end)
 		flush_instruction_cache();
 }
 
-
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	int sr3;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
+	if ((end - start) < parisc_cache_flush_threshold) {
+		if (vma->vm_mm->context == mfsp(3)) {
+			flush_user_dcache_range_asm(start,end);
+			if(vma->vm_flags & VM_EXEC)
+				flush_user_icache_range_asm(start,end);
+		} else {
+			unsigned long addr;
+			pgd_t *pgd = vma->vm_mm->pgd;
+
+			for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+				pte_t *ptep = get_ptep(pgd, addr);
+				if (ptep != NULL) {
+					pte_t pte = *ptep;
+					flush_cache_page(vma, addr, pte_pfn(pte));
+				}
+			}
+		}
 	} else {
+#ifdef CONFIG_SMP
 		flush_cache_all();
+#else
+		flush_cache_all_local();
+#endif
 	}
 }
 
@@ -512,3 +597,67 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
+
+#ifdef CONFIG_PARISC_TMPALIAS
+
+void clear_user_highpage(struct page *page, unsigned long vaddr)
+{
+	void *vto;
+	unsigned long flags;
+
+	/* Clear using TMPALIAS region.  The page doesn't need to
+	   be flushed but the kernel mapping needs to be purged.  */
+
+	vto = kmap_atomic(page, KM_USER0);
+
+	/* The PA-RISC 2.0 Architecture book states on page F-6:
+	   "Before a write-capable translation is enabled, *all*
+	   non-equivalently-aliased translations must be removed
+	   from the page table and purged from the TLB.  (Note
+	   that the caches are not required to be flushed at this
+	   time.)  Before any non-equivalent aliased translation
+	   is re-enabled, the virtual address range for the writeable
+	   page (the entire page) must be flushed from the cache,
+	   and the write-capable translation removed from the page
+	   table and purged from the TLB."  */
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	purge_tlb_end(flags);
+	preempt_disable();
+	clear_user_page_asm(vto, vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma)
+{
+	void *vfrom, *vto;
+	unsigned long flags;
+
+	/* Copy using TMPALIAS region.  This has the advantage
+	   that the `from' page doesn't need to be flushed.  However,
+	   the `to' page must be flushed in copy_user_page_asm since
+	   it can be used to bring in executable code.  */
+
+	vfrom = kmap_atomic(from, KM_USER0);
+	vto = kmap_atomic(to, KM_USER1);
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	pdtlb_kernel(vfrom);
+	purge_tlb_end(flags);
+	preempt_disable();
+	copy_user_page_asm(vto, vfrom, vaddr);
+	flush_dcache_page_asm(__pa(vto), vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER1); */
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+#endif /* CONFIG_PARISC_TMPALIAS */
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 18670a0..fcef82d 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -483,7 +483,7 @@
 	 * B <-> _PAGE_DMB (memory break)
 	 *
 	 * Then incredible subtlety: The access rights are
-	 * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
+	 * _PAGE_GATEWAY, _PAGE_EXEC and _PAGE_WRITE
 	 * See 3-14 of the parisc 2.0 manual
 	 *
 	 * Finally, _PAGE_READ goes in the top bit of PL1 (so we
@@ -493,7 +493,7 @@
 
 	/* PAGE_USER indicates the page can be read with user privileges,
 	 * so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1
-	 * contains _PAGE_READ */
+	 * contains _PAGE_READ) */
 	extrd,u,*=      \pte,_PAGE_USER_BIT+32,1,%r0
 	depdi		7,11,3,\prot
 	/* If we're a gateway page, drop PL2 back to zero for promotion
@@ -1785,9 +1785,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1817,7 +1817,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1836,8 +1836,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1860,7 +1861,7 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..8094d3e 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
-	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+	.flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
-	.flags = IRQF_DISABLED | IRQF_PERCPU,
+	.flags = IRQF_PERCPU,
 };
 #endif
 
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
 {
 	local_irq_disable();	/* PARANOID - should already be disabled */
 	mtctl(~0UL, 23);	/* EIRR : clear all pending external intr */
-	claim_cpu_irqs();
 #ifdef CONFIG_SMP
-	if (!cpu_eiem)
+	if (!cpu_eiem) {
+		claim_cpu_irqs();
 		cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+	}
 #else
+	claim_cpu_irqs();
 	cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 5d7218a..ed401dd 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -199,7 +199,6 @@ ENTRY(flush_instruction_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
 	load32		cache_info, %r1
 
 	/* Flush Instruction Cache */
@@ -208,20 +207,46 @@ ENTRY(flush_instruction_cache_local)
 	LDREG		ICACHE_STRIDE(%r1), %arg1
 	LDREG		ICACHE_COUNT(%r1), %arg2
 	LDREG		ICACHE_LOOP(%r1), %arg3
-	rsm             PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fioneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fisync	/* If loop < 0, do sync */
 
 fimanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fimanyloop	/* Adjusted inner loop decr */
-	fice            %r0(%sr1, %arg0)
-	fice,m		%arg1(%sr1, %arg0)	/* Last fice and addr adjust */
+	fice            %r0(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)	/* Last fice and addr adjust */
 	movb,tr		%arg3, %r31, fimanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fisync	/* Outer loop decr */
 
 fioneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fioneloop	/* Outer loop count decr */
-	fice,m		%arg1(%sr1, %arg0)	/* Fice for one loop */
+	/* Some implementations may flush with a single fice instruction */
+	cmpib,COND(>>=),n	15, %arg2, fioneloop2
+
+fioneloop1:
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	addib,COND(>)	-16, %arg2, fioneloop1
+	fice,m		%arg1(%sr4, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fisync	/* Predict branch taken */
+
+fioneloop2:
+	addib,COND(>)	-1, %arg2, fioneloop2	/* Outer loop count decr */
+	fice,m		%arg1(%sr4, %arg0)	/* Fice for one loop */
 
 fisync:
 	sync
@@ -240,8 +265,7 @@ ENTRY(flush_data_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
-	load32 		cache_info, %r1
+	load32		cache_info, %r1
 
 	/* Flush Data Cache */
 
@@ -249,20 +273,46 @@ ENTRY(flush_data_cache_local)
 	LDREG		DCACHE_STRIDE(%r1), %arg1
 	LDREG		DCACHE_COUNT(%r1), %arg2
 	LDREG		DCACHE_LOOP(%r1), %arg3
-	rsm		PSW_SM_I, %r22
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fdoneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fdsync	/* If loop < 0, do sync */
 
 fdmanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fdmanyloop	/* Adjusted inner loop decr */
-	fdce		%r0(%sr1, %arg0)
-	fdce,m		%arg1(%sr1, %arg0)	/* Last fdce and addr adjust */
+	fdce		%r0(%arg0)
+	fdce,m		%arg1(%arg0)	/* Last fdce and addr adjust */
 	movb,tr		%arg3, %r31, fdmanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fdsync	/* Outer loop decr */
 
 fdoneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fdoneloop	/* Outer loop count decr */
-	fdce,m		%arg1(%sr1, %arg0)	/* Fdce for one loop */
+	/* Some implementations may flush with a single fdce instruction */
+	cmpib,COND(>>=),n	15, %arg2, fdoneloop2
+
+fdoneloop1:
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	addib,COND(>)	-16, %arg2, fdoneloop1
+	fdce,m		%arg1(%arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fdsync	/* Predict branch taken */
+
+fdoneloop2:
+	addib,COND(>)	-1, %arg2, fdoneloop2	/* Outer loop count decr */
+	fdce,m		%arg1(%arg0)	/* Fdce for one loop */
 
 fdsync:
 	syncdma
@@ -277,7 +327,104 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+/* Macros to serialize TLB purge operations on SMP.  */
+
+	.macro	tlb_lock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock,%r1
+	ldo		R%pa_tlb_lock(%r1),\la
+	rsm		PSW_SM_I,\flags
+1:	LDCW		0(\la),\tmp
+	cmpib,<>,n	0,\tmp,3f
+2:	ldw		0(\la),\tmp
+	cmpb,<>		%r0,\tmp,1b
+	nop
+	b,n		2b
+3:
+#endif
+	.endm
+
+	.macro	tlb_unlock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldi		1,\tmp
+	stw		\tmp,0(\la)
+	mtsm		\flags
+#endif
+	.endm
+
+/* Clear page using kernel mapping.  */
+
+ENTRY(clear_page_asm)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+#ifdef CONFIG_64BIT
+
+	/* Unroll the loop.  */
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:
+	std		%r0, 0(%r26)
+	std		%r0, 8(%r26)
+	std		%r0, 16(%r26)
+	std		%r0, 24(%r26)
+	std		%r0, 32(%r26)
+	std		%r0, 40(%r26)
+	std		%r0, 48(%r26)
+	std		%r0, 56(%r26)
+	std		%r0, 64(%r26)
+	std		%r0, 72(%r26)
+	std		%r0, 80(%r26)
+	std		%r0, 88(%r26)
+	std		%r0, 96(%r26)
+	std		%r0, 104(%r26)
+	std		%r0, 112(%r26)
+	std		%r0, 120(%r26)
+
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
+
+#else
+
+	/*
+	 * Note that until (if) we start saving the full 64-bit register
+	 * values on interrupt, we can't use std on a 32 bit kernel.
+	 */
+	ldi		(PAGE_SIZE / 64), %r1
+
+1:
+	stw		%r0, 0(%r26)
+	stw		%r0, 4(%r26)
+	stw		%r0, 8(%r26)
+	stw		%r0, 12(%r26)
+	stw		%r0, 16(%r26)
+	stw		%r0, 20(%r26)
+	stw		%r0, 24(%r26)
+	stw		%r0, 28(%r26)
+	stw		%r0, 32(%r26)
+	stw		%r0, 36(%r26)
+	stw		%r0, 40(%r26)
+	stw		%r0, 44(%r26)
+	stw		%r0, 48(%r26)
+	stw		%r0, 52(%r26)
+	stw		%r0, 56(%r26)
+	stw		%r0, 60(%r26)
+
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		64(%r26), %r26
+#endif
+	bv		%r0(%r2)
+	nop
+	.exit
+
+	.procend
+ENDPROC(clear_page_asm)
+
+/* Copy page using kernel mapping.  */
+
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -285,18 +432,14 @@ ENTRY(copy_user_page_asm)
 #ifdef CONFIG_64BIT
 	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
 	 * Unroll the loop by hand and arrange insn appropriately.
-	 * GCC probably can do this just as well.
+	 * Prefetch doesn't improve performance on rp3440.
+	 * GCC probably can do this just as well...
 	 */
 
-	ldd		0(%r25), %r19
 	ldi		(PAGE_SIZE / 128), %r1
 
-	ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
-	ldw		128(%r25), %r0		/* prefetch 2 */
-
-1:	ldd		8(%r25), %r20
-	ldw		192(%r25), %r0		/* prefetch 3 */
-	ldw		256(%r25), %r0		/* prefetch 4 */
+1:	ldd		0(%r25), %r19
+	ldd		8(%r25), %r20
 
 	ldd		16(%r25), %r21
 	ldd		24(%r25), %r22
@@ -330,20 +473,16 @@ ENTRY(copy_user_page_asm)
 
 	ldd		112(%r25), %r21
 	ldd		120(%r25), %r22
+	ldo		128(%r25), %r25
 	std		%r19, 96(%r26)
 	std		%r20, 104(%r26)
 
-	ldo		128(%r25), %r25
 	std		%r21, 112(%r26)
 	std		%r22, 120(%r26)
-	ldo		128(%r26), %r26
 
-	/* conditional branches nullify on forward taken branch, and on
-	 * non-taken backward branch. Note that .+4 is a backwards branch.
-	 * The ldd should only get executed if the branch is taken.
-	 */
-	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
-	ldd		0(%r25), %r19		/* start next loads */
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
 
 #else
 
@@ -399,7 +538,7 @@ ENTRY(copy_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,8 +561,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
-
 	/*
 	 * We can't do this since copy_user_page is used to bring in
 	 * file data that might have instructions. Since the data would
@@ -435,6 +572,7 @@ ENDPROC(copy_user_page_asm)
 	 * use it if more information is passed into copy_user_page().
 	 * Have to do some measurements to see if it is worthwhile to
 	 * lobby for such a change.
+	 *
 	 */
 
 ENTRY(copy_user_page_asm)
@@ -442,16 +580,21 @@ ENTRY(copy_user_page_asm)
 	.callinfo NO_CALLS
 	.entry
 
+	/* Convert virtual `to' and `from' addresses to physical addresses.
+	   Move `from' physical address to non shadowed register.  */
 	ldil		L%(__PAGE_OFFSET), %r1
 	sub		%r26, %r1, %r26
-	sub		%r25, %r1, %r23		/* move physical addr into non shadowed reg */
+	sub		%r25, %r1, %r23
 
 	ldil		L%(TMPALIAS_MAP_START), %r28
 	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
-	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+#endif
+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
+	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
@@ -466,10 +609,76 @@ ENTRY(copy_user_page_asm)
 
 	/* Purge any old translations */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+	pdtlb,l		0(%r29)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
-	ldi		64, %r1
+#ifdef CONFIG_64BIT
+	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
+	 * Unroll the loop by hand and arrange insn appropriately.
+	 * GCC probably can do this just as well.
+	 */
+
+	ldd		0(%r29), %r19
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:	ldd		8(%r29), %r20
+
+	ldd		16(%r29), %r21
+	ldd		24(%r29), %r22
+	std		%r19, 0(%r28)
+	std		%r20, 8(%r28)
+
+	ldd		32(%r29), %r19
+	ldd		40(%r29), %r20
+	std		%r21, 16(%r28)
+	std		%r22, 24(%r28)
+
+	ldd		48(%r29), %r21
+	ldd		56(%r29), %r22
+	std		%r19, 32(%r28)
+	std		%r20, 40(%r28)
+
+	ldd		64(%r29), %r19
+	ldd		72(%r29), %r20
+	std		%r21, 48(%r28)
+	std		%r22, 56(%r28)
+
+	ldd		80(%r29), %r21
+	ldd		88(%r29), %r22
+	std		%r19, 64(%r28)
+	std		%r20, 72(%r28)
+
+	ldd		 96(%r29), %r19
+	ldd		104(%r29), %r20
+	std		%r21, 80(%r28)
+	std		%r22, 88(%r28)
+
+	ldd		112(%r29), %r21
+	ldd		120(%r29), %r22
+	std		%r19, 96(%r28)
+	std		%r20, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r21, 112(%r28)
+	std		%r22, 120(%r28)
+	ldo		128(%r28), %r28
+
+	/* conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 * The ldd should only get executed if the branch is taken.
+	 */
+	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
+	ldd		0(%r29), %r19		/* start next loads */
+
+#else
+	ldi		(PAGE_SIZE / 64), %r1
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,9 +689,7 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
+1:	ldw		0(%r29), %r19
 	ldw		4(%r29), %r20
 	ldw		8(%r29), %r21
 	ldw		12(%r29), %r22
@@ -515,8 +722,10 @@ ENTRY(copy_user_page_asm)
 	stw		%r21, 56(%r28)
 	stw		%r22, 60(%r28)
 	ldo		64(%r28), %r28
+
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
+#endif
 
 	bv		%r0(%r2)
 	nop
@@ -524,9 +733,8 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -550,7 +758,13 @@ ENTRY(__clear_user_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
@@ -580,8 +794,7 @@ ENTRY(__clear_user_page_asm)
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
-	stw		%r0, 0(%r28)
+1:	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
 	stw		%r0, 12(%r28)
@@ -606,7 +819,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_dcache_page_asm)
 	.proc
@@ -630,7 +843,13 @@ ENTRY(flush_dcache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), %r1
@@ -663,8 +882,17 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		%r1(%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pdtlb		(%r25)
+	nop
 	.exit
 
 	.procend
@@ -692,7 +920,13 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
-	pitlb		(%sr4,%r28)
+#ifdef CONFIG_PA20
+	pitlb,l         %r0(%sr4,%r28)
+#else
+	tlb_lock        %r20,%r21,%r22
+	pitlb           (%sr4,%r28)
+	tlb_unlock      %r20,%r21,%r22
+#endif
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -727,8 +961,17 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r1(%sr4,%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pitlb,l         %r0(%sr4,%r25)
+#else
+	tlb_lock        %r20,%r21,%r22
+	pitlb           (%sr4,%r25)
+	tlb_unlock      %r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pitlb		(%sr4,%r25)
+	nop
 	.exit
 
 	.procend
@@ -777,7 +1020,7 @@ ENTRY(flush_kernel_dcache_page_asm)
 	.procend
 ENDPROC(flush_kernel_dcache_page_asm)
 
-ENTRY(purge_kernel_dcache_page)
+ENTRY(purge_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -817,7 +1060,7 @@ ENTRY(purge_kernel_dcache_page)
 	.exit
 
 	.procend
-ENDPROC(purge_kernel_dcache_page)
+ENDPROC(purge_kernel_dcache_page_asm)
 
 ENTRY(flush_user_dcache_range_asm)
 	.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index ceec85d..6795dc6 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -157,5 +157,6 @@ extern void _mcount(void);
 EXPORT_SYMBOL(_mcount);
 #endif
 
-/* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+/* from pacache.S -- needed for clear/copy_page */
+EXPORT_SYMBOL(clear_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d4b94b3..2c05a92 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -309,7 +309,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 		cregs->ksp = (unsigned long)stack
 			+ (pregs->gr[21] & (THREAD_SIZE - 1));
 		cregs->gr[30] = usp;
-		if (p->personality == PER_HPUX) {
+		if (personality(p->personality) == PER_HPUX) {
 #ifdef CONFIG_HPUX
 			cregs->kpc = (unsigned long) &hpux_child_return;
 #else
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 594459b..56e0087 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -308,7 +308,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #if DEBUG_SIG
 	/* Assert that we're flushing in the correct space... */
 	{
-		int sid;
+		unsigned long sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
 		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
 		       sid, frame->tramp);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..9888765 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
@@ -225,12 +226,12 @@ long parisc_personality(unsigned long personality)
 	long err;
 
 	if (personality(current->personality) == PER_LINUX32
-	    && personality == PER_LINUX)
-		personality = PER_LINUX32;
+	    && personality(personality) == PER_LINUX)
+		personality &= ~PER_LINUX|PER_LINUX32;
 
 	err = sys_personality(personality);
-	if (err == PER_LINUX32)
-		err = PER_LINUX;
+	if (personality(err) == PER_LINUX32)
+		err &= ~PER_LINUX32|PER_LINUX;
 
 	return err;
 }
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 82a52b2..837c602 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -180,9 +180,10 @@ linux_gateway_entry:
 
 	/* Are we being ptraced? */
 	mfctl	%cr30, %r1
-	LDREG	TI_TASK(%r1),%r1
-	ldw	TASK_PTRACE(%r1), %r1
-	bb,<,n	%r1,31,.Ltracesys
+	LDREG   TI_FLAGS(%r1),%r1
+	ldi	(_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_BLOCKSTEP), %r19
+	and,COND(=) %r19, %r1, %r0
+	b,n	.Ltracesys
 	
 	/* Note!  We cannot use the syscall table that is mapped
 	nearby since the gateway page is mapped execute-only. */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 70e105d..4a24ba7 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -77,7 +77,7 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 6) < cpt) {
+	if ((cycles_elapsed >> 7) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
diff --git a/arch/parisc/math-emu/cnv_float.h b/arch/parisc/math-emu/cnv_float.h
index 9071e09..37299c7 100644
--- a/arch/parisc/math-emu/cnv_float.h
+++ b/arch/parisc/math-emu/cnv_float.h
@@ -347,16 +347,15 @@
     Sgl_isinexact_to_fix(sgl_value,exponent)
 
 #define Duint_from_sgl_mantissa(sgl_value,exponent,dresultA,dresultB)	\
-  {Sall(sgl_value) <<= SGL_EXP_LENGTH;  /*  left-justify  */		\
+  {unsigned int val = Sall(sgl_value) << SGL_EXP_LENGTH;		\
     if (exponent <= 31) {						\
     	Dintp1(dresultA) = 0;						\
-    	Dintp2(dresultB) = (unsigned)Sall(sgl_value) >> (31 - exponent); \
+    	Dintp2(dresultB) = val >> (31 - exponent);			\
     }									\
     else {								\
-    	Dintp1(dresultA) = Sall(sgl_value) >> (63 - exponent);		\
-    	Dintp2(dresultB) = Sall(sgl_value) << (exponent - 31);		\
+    	Dintp1(dresultA) = val >> (63 - exponent);			\
+    	Dintp2(dresultB) = exponent <= 62 ? val << (exponent - 31) : 0;	\
     }									\
-    Sall(sgl_value) >>= SGL_EXP_LENGTH;  /* return to original */	\
   }
 
 #define Duint_setzero(dresultA,dresultB) 	\
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 18162ce..524bf5a 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -175,10 +175,12 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	struct mm_struct *mm = tsk->mm;
 	unsigned long acc_type;
 	int fault;
+	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	if (in_atomic() || !mm)
 		goto no_context;
 
+retry:
 	down_read(&mm->mmap_sem);
 	vma = find_vma_prev(mm, address, &prev_vma);
 	if (!vma || address < vma->vm_start)
@@ -201,7 +203,12 @@ good_area:
 	 * fault.
 	 */
 
-	fault = handle_mm_fault(mm, vma, address, (acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0);
+	fault = handle_mm_fault(mm, vma, address,
+		flags | ((acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0));
+
+	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+		return;
+
 	if (unlikely(fault & VM_FAULT_ERROR)) {
 		/*
 		 * We hit a shared mapping outside of the file, or some
@@ -214,10 +221,22 @@ good_area:
 			goto bad_area;
 		BUG();
 	}
-	if (fault & VM_FAULT_MAJOR)
-		current->maj_flt++;
-	else
-		current->min_flt++;
+	if (flags & FAULT_FLAG_ALLOW_RETRY) {
+		if (fault & VM_FAULT_MAJOR)
+			current->maj_flt++;
+		else
+			current->min_flt++;
+		if (fault & VM_FAULT_RETRY) {
+			flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+			/* No need to up_read(&mm->mmap_sem) as we would
+			 * have already released it in __lock_page_or_retry
+			 * in mm/filemap.c.
+			 */
+
+			goto retry;
+		}
+	}
 	up_read(&mm->mmap_sem);
 	return;
 
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index eebd6d5..078a593 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -581,6 +581,7 @@ out_eoi:
 void
 handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 {
+	struct irqaction *action;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	kstat_incr_irqs_this_cpu(irq, desc);
@@ -588,7 +589,9 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 	if (chip->irq_ack)
 		chip->irq_ack(&desc->irq_data);
 
-	handle_irq_event_percpu(desc, desc->action);
+	action = desc->action;
+	if (action)
+		handle_irq_event_percpu(desc, action);
 
 	if (chip->irq_eoi)
 		chip->irq_eoi(&desc->irq_data);

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Directly comparing task_struct->personality against PER_* is not fully
correct, as it doesn't take flags potentially stored in top three bytes
into account.

Analogically, directly forcefully setting personality to PER_LINUX32 or
PER_LINUX discards any flags stored in the top three bytes.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---

changed since v1: fix the bit ops to reflect the fact that PER_LINUX is 
actually 0

 arch/parisc/kernel/process.c    |    2 +-
 arch/parisc/kernel/sys_parisc.c |    8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d4b94b3..2c05a92 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -309,7 +309,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 		cregs->ksp = (unsigned long)stack
 			+ (pregs->gr[21] & (THREAD_SIZE - 1));
 		cregs->gr[30] = usp;
-		if (p->personality == PER_HPUX) {
+		if (personality(p->personality) == PER_HPUX) {
 #ifdef CONFIG_HPUX
 			cregs->kpc = (unsigned long) &hpux_child_return;
 #else
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..7f9658e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -225,12 +225,12 @@ long parisc_personality(unsigned long personality)
 	long err;
 
 	if (personality(current->personality) == PER_LINUX32
-	    && personality == PER_LINUX)
-		personality = PER_LINUX32;
+	    && personality(personality) == PER_LINUX)
+		personality |= PER_LINUX32;
 
 	err = sys_personality(personality);
-	if (err == PER_LINUX32)
-		err = PER_LINUX;
+	if (personality(err) == PER_LINUX32)
+		err &= ~PER_LINUX32;
 
 	return err;
 }

-- 
Jiri Kosina
SUSE Labs
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Subject: Re: [PATCH v2] parisc: fix personality flag check in copy_thread()
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On Thu, 2012-08-02 at 09:12 +0200, Jiri Kosina wrote:
> Directly comparing task_struct->personality against PER_* is not fully
> correct, as it doesn't take flags potentially stored in top three bytes
> into account.
> 
> Analogically, directly forcefully setting personality to PER_LINUX32 or
> PER_LINUX discards any flags stored in the top three bytes.
> 
> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
> ---
> 
> changed since v1: fix the bit ops to reflect the fact that PER_LINUX is 
> actually 0

Tell me what you're trying to achieve (or what problem you're trying to
solve), because personality is notoriously tricky.

Usually personality = <whatever> is desired because if you look at the
enum for personality, it does set the top three bits in quite a few
cases.  We actually don't need any of the top 3 byte features ... but I
think making sure they're zeroed out is the correct thing to do.

In particular, if we ever get around to a 64 bit user space, our
personality will be PER_LINUX_FDPIC and then we will be setting the top
three bytes.

James


>  arch/parisc/kernel/process.c    |    2 +-
>  arch/parisc/kernel/sys_parisc.c |    8 ++++----
>  2 files changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
> index d4b94b3..2c05a92 100644
> --- a/arch/parisc/kernel/process.c
> +++ b/arch/parisc/kernel/process.c
> @@ -309,7 +309,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
>  		cregs->ksp = (unsigned long)stack
>  			+ (pregs->gr[21] & (THREAD_SIZE - 1));
>  		cregs->gr[30] = usp;
> -		if (p->personality == PER_HPUX) {
> +		if (personality(p->personality) == PER_HPUX) {
>  #ifdef CONFIG_HPUX
>  			cregs->kpc = (unsigned long) &hpux_child_return;
>  #else
> diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
> index c9b9322..7f9658e 100644
> --- a/arch/parisc/kernel/sys_parisc.c
> +++ b/arch/parisc/kernel/sys_parisc.c
> @@ -225,12 +225,12 @@ long parisc_personality(unsigned long personality)
>  	long err;
>  
>  	if (personality(current->personality) == PER_LINUX32
> -	    && personality == PER_LINUX)
> -		personality = PER_LINUX32;
> +	    && personality(personality) == PER_LINUX)
> +		personality |= PER_LINUX32;
>  
>  	err = sys_personality(personality);
> -	if (err == PER_LINUX32)
> -		err = PER_LINUX;
> +	if (personality(err) == PER_LINUX32)
> +		err &= ~PER_LINUX32;
>  
>  	return err;
>  }
> 


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Subject: Re: [PATCH v2] parisc: fix personality flag check in copy_thread()
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On Thu, 2 Aug 2012, James Bottomley wrote:

> > Directly comparing task_struct->personality against PER_* is not fully
> > correct, as it doesn't take flags potentially stored in top three bytes
> > into account.
> > 
> > Analogically, directly forcefully setting personality to PER_LINUX32 or
> > PER_LINUX discards any flags stored in the top three bytes.
> > 
> > Signed-off-by: Jiri Kosina <jkosina@suse.cz>
> > ---
> > 
> > changed since v1: fix the bit ops to reflect the fact that PER_LINUX is 
> > actually 0
> 
> Tell me what you're trying to achieve (or what problem you're trying to
> solve), because personality is notoriously tricky.

Long story short -- I was debugging a problem where 'setarch --uname-2.6' 
would not work on s390 on (older) 3.x kernel. Turned out to be a 
corruption of top bytes of personality across exec() on s390.

I was doing quite some over-the-tree grepping during this, and found out 
that at least parisc, powerpc and sparc64 (davem already queued my patch 
for this) would under some silently ignore discard the top bytes of 
personality flags passed to sys_personality().

In case of parsic, let's take a process with current->personality == 
PER_LINUX32 callling personality(PER_LINUX | UNAME26). The

        if (personality(current->personality) == PER_LINUX32
            && personality == PER_LINUX)
                personality = PER_LINUX32;

would that have no effect, and sys_personality() would be called with 
(PER_LINUX | UNAME26) instead of PER_LINUX32, just because of UNAME26 
being set as well. That doesn't seem really correct. Is it?

-- 
Jiri Kosina
SUSE Labs
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On Thu, 2012-08-02 at 13:45 +0200, Jiri Kosina wrote:
> On Thu, 2 Aug 2012, James Bottomley wrote:
> 
> > > Directly comparing task_struct->personality against PER_* is not fully
> > > correct, as it doesn't take flags potentially stored in top three bytes
> > > into account.
> > > 
> > > Analogically, directly forcefully setting personality to PER_LINUX32 or
> > > PER_LINUX discards any flags stored in the top three bytes.
> > > 
> > > Signed-off-by: Jiri Kosina <jkosina@suse.cz>
> > > ---
> > > 
> > > changed since v1: fix the bit ops to reflect the fact that PER_LINUX is 
> > > actually 0
> > 
> > Tell me what you're trying to achieve (or what problem you're trying to
> > solve), because personality is notoriously tricky.
> 
> Long story short -- I was debugging a problem where 'setarch --uname-2.6' 
> would not work on s390 on (older) 3.x kernel. Turned out to be a 
> corruption of top bytes of personality across exec() on s390.
> 
> I was doing quite some over-the-tree grepping during this, and found out 
> that at least parisc, powerpc and sparc64 (davem already queued my patch 
> for this) would under some silently ignore discard the top bytes of 
> personality flags passed to sys_personality().
> 
> In case of parsic, let's take a process with current->personality == 
> PER_LINUX32 callling personality(PER_LINUX | UNAME26). The
> 
>         if (personality(current->personality) == PER_LINUX32
>             && personality == PER_LINUX)
>                 personality = PER_LINUX32;
> 
> would that have no effect, and sys_personality() would be called with 
> (PER_LINUX | UNAME26) instead of PER_LINUX32, just because of UNAME26 
> being set as well. That doesn't seem really correct. Is it?

Heh, no.  This is a nasty mess.  Our assumption was that we own the
flags ... hence the code.  There are some flags we can't allow to be set
or reset ... but that's only for the mythical 64 bit userspace, so I
suppose we just ignore that for now and fix it if this ever appears.

I don't like the hidden assumption that PER_LINUX == 0, but otherwise
the code looks fine.

How about 

personality = (personality & ~PER_MASK) | PER_LINUX32;

and

err = (personality & ~PER_MASK) | PER_LINUX;

James



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From - Thu Nov 08 21:08:30 2018
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On Thu, 2 Aug 2012, James Bottomley wrote:

> > In case of parsic, let's take a process with current->personality == 
> > PER_LINUX32 callling personality(PER_LINUX | UNAME26). The
> > 
> >         if (personality(current->personality) == PER_LINUX32
> >             && personality == PER_LINUX)
> >                 personality = PER_LINUX32;
> > 
> > would that have no effect, and sys_personality() would be called with 
> > (PER_LINUX | UNAME26) instead of PER_LINUX32, just because of UNAME26 
> > being set as well. That doesn't seem really correct. Is it?
> 
> Heh, no.  This is a nasty mess.  

Indeed.

> Our assumption was that we own the flags ... hence the code.  There are 
> some flags we can't allow to be set or reset ... but that's only for the 
> mythical 64 bit userspace, so I suppose we just ignore that for now and 
> fix it if this ever appears.
>
> I don't like the hidden assumption that PER_LINUX == 0, but otherwise
> the code looks fine.
> 
> How about 
> 
> personality = (personality & ~PER_MASK) | PER_LINUX32;
> 
> and
> 
> err = (personality & ~PER_MASK) | PER_LINUX;

Agreed, that's a little bit nicer way how to express it (modulo the 
fact that the last 'personality' in your example should in fact be 'err'). 
Updated patch below, thanks.




From: Jiri Kosina <jkosina@suse.cz>
Subject: [PATCH 2/4] parisc: fix personality flag check in copy_thread()

Directly comparing task_struct->personality against PER_* is not fully
correct, as it doesn't take flags potentially stored in top three bytes
into account.

Analogically, directly forcefully setting personality to PER_LINUX32 or
PER_LINUX discards any flags stored in the top three bytes.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
v0->v1: fix the bit ops to reflect the fact that PER_LINUX is actually 0
v2->v2: express the PER_LINUX==0 fact in the bitops in a more obvious way

 arch/parisc/kernel/process.c    |    2 +-
 arch/parisc/kernel/sys_parisc.c |    8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d4b94b3..2c05a92 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -309,7 +309,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 		cregs->ksp = (unsigned long)stack
 			+ (pregs->gr[21] & (THREAD_SIZE - 1));
 		cregs->gr[30] = usp;
-		if (p->personality == PER_HPUX) {
+		if (personality(p->personality) == PER_HPUX) {
 #ifdef CONFIG_HPUX
 			cregs->kpc = (unsigned long) &hpux_child_return;
 #else
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..7f9658e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -225,12 +225,12 @@ long parisc_personality(unsigned long personality)
 	long err;
 
 	if (personality(current->personality) == PER_LINUX32
-	    && personality == PER_LINUX)
-		personality = PER_LINUX32;
+	    && personality(personality) == PER_LINUX)
+		personality = (personality & ~PER_MASK) | PER_LINUX32;
 
 	err = sys_personality(personality);
-	if (err == PER_LINUX32)
-		err = PER_LINUX;
+	if (personality(err) == PER_LINUX32)
+		err = (err & ~PER_MASK) | PER_LINUX;
 
 	return err;
 }

-- 
Jiri Kosina
SUSE Labs
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On Thu, Jul 26, 2012 at 10:06:41AM -0700, Tony Luck wrote:
> On Tue, Jul 24, 2012 at 10:10 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> >> Here is the line in sock.i:
> >>
> >> struct static_key memalloc_socks = ((struct static_key) { .enabled =
> >> ((atomic_t) { (0) }) });
> >
> > The above line contains two compound literals.  It also uses a designated
> > initializer to initialize the field enabled.  A compound literal is not a
> > constant expression.
> 
> Seeing the same thing on ia64 building next-20120726.  Same fix works
> for me ... so I'll steal this whole changelog and attributes.

I got the same error for alpha, the same fix applies.
---
From: Mel Gorman <mgorman@suse.de>
Subject: [PATCH] [ALPHA] Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts

The following build error occurred during an alpha build:

net/core/sock.c:274:36: error: initializer element is not constant

Dave Anglin says:
> Here is the line in sock.i:
>
> struct static_key memalloc_socks = ((struct static_key) { .enabled =
> ((atomic_t) { (0) }) });

The above line contains two compound literals.  It also uses a designated
initializer to initialize the field enabled.  A compound literal is not a
constant expression.

The location of the above statement isn't fully clear, but if a compound
literal occurs outside the body of a function, the initializer list must
consist of constant expressions.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: <stable@vger.kernel.org>
---
 arch/alpha/include/asm/atomic.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- linux.orig/arch/alpha/include/asm/atomic.h	2012-05-24 19:03:06.000000000 +0800
+++ linux/arch/alpha/include/asm/atomic.h	2012-08-02 23:01:02.243224220 +0800
@@ -14,8 +14,8 @@
  */
 
 
-#define ATOMIC_INIT(i)		( (atomic_t) { (i) } )
-#define ATOMIC64_INIT(i)	( (atomic64_t) { (i) } )
+#define ATOMIC_INIT(i)		( { (i) } )
+#define ATOMIC64_INIT(i)	( { (i) } )
 
 #define atomic_read(v)		(*(volatile int *)&(v)->counter)
 #define atomic64_read(v)	(*(volatile long *)&(v)->counter)
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On Wed, 1 Aug 2012, John David Anglin wrote:

> On 1-Aug-12, at 9:00 PM, Mikulas Patocka wrote:
> 
> > 
> > 
> > On Sun, 13 May 2012, John David Anglin wrote:
> > 
> > > On 13-May-12, at 4:40 PM, John David Anglin wrote:
> > > 
> > > > Yes, the revised change fixes the compilation error.  I'll know in a
> > > > while
> > > > if
> > > > my config boots.
> > > 
> > > 
> > > I successfully booted 3.4-rc7 with this change on rp3440 (4 cpu smp).  My
> > > build also
> > > included cache and other fixes that are being discussed on the parisc
> > > list.
> > > 
> > > Dave
> > 
> > Hi David
> > 
> > Can I download a series of your PA-RISC patches somewhere?
> > 
> > I applied this http://www.spinics.net/lists/linux-parisc/msg03352.html and
> > it improved stability for me (I had no gcc crashes since that, only
> > about two aptitude crashes).
> > 
> > How stable is it for you? Do you have some random crashes or not?
> 
> 
> Attached are my latest patch sets for linux-stable 3.4 and 3.5 branches.
> There is no place to to download them directly.  I added Jiri Kosina's
> personality fix today to the 3.5 patch set.  Otherwise, they are similar.
> 
> In general, stability with 3.4 has been pretty good.  I just started testing
> 3.5 a couple of days ago.  I went about three weeks without a random
> crash with 3.4 after I removed Al Viro's restart patch.  It was causing
> problems with irq handling.

Which restart patch do you mean?

> This is on 64-bit rp3440.  I have been using it to build debian unstable
> and test GCC 4.8.  So, the machine gets a fair bit of exercise.  In the last
> little while, it has been pretty easy to keep up with the changes in unstable.
> 
> Sorry, I haven't had time to submit my changes.  Some of the cache fixes
> are a bit hard to explain.
> 
> Dave
> --
> John David Anglin	dave.anglin@bell.net

Thanks. For me the kernel with the patch works fine - it would be nice to 
break it up to smaller pieces and submit it.

Mikulas

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On 8/7/2012 2:41 PM, Mikulas Patocka wrote:
> Which restart patch do you mean?
http://www.spinics.net/lists/linux-parisc/msg04229.html

Dave

-- 
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Cc: linux-alpha@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	Tony Luck <tony.luck@gmail.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	John David Anglin <dave.anglin@bell.net>,
	Mel Gorman <mgorman@suse.de>, kernel-janitors@vger.kernel.org,
	Kyle McMartin <kyle@parisc-linux.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Parisc List <linux-parisc@vger.kernel.org>
To: Fengguang Wu <fengguang.wu@intel.com>
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On 03/08/12 03:02, Fengguang Wu wrote:
> On Thu, Jul 26, 2012 at 10:06:41AM -0700, Tony Luck wrote:
>> On Tue, Jul 24, 2012 at 10:10 PM, James Bottomley
>> <James.Bottomley@hansenpartnership.com> wrote:
>>>> Here is the line in sock.i:
>>>>
>>>> struct static_key memalloc_socks = ((struct static_key) { .enabled =
>>>> ((atomic_t) { (0) }) });
>>>
>>> The above line contains two compound literals.  It also uses a designated
>>> initializer to initialize the field enabled.  A compound literal is not a
>>> constant expression.
>>
>> Seeing the same thing on ia64 building next-20120726.  Same fix works
>> for me ... so I'll steal this whole changelog and attributes.
> 
> I got the same error for alpha, the same fix applies.

Just trying this patch on Alpha against v3.6-rc1 and it leads to new
compilation errors, namely:

init/init_task.c:12: error: braced-group within expression allowed only
inside a function
init/init_task.c:13: error: braced-group within expression allowed only
inside a function
init/init_task.c:16: error: braced-group within expression allowed only
inside a function
init/init_task.c:16: error: braced-group within expression allowed only
inside a function
make[1]: *** [init/init_task.o] Error 1

> ---
> From: Mel Gorman <mgorman@suse.de>
> Subject: [PATCH] [ALPHA] Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts
> 
> The following build error occurred during an alpha build:
> 
> net/core/sock.c:274:36: error: initializer element is not constant
> 
> Dave Anglin says:
>> Here is the line in sock.i:
>>
>> struct static_key memalloc_socks = ((struct static_key) { .enabled =
>> ((atomic_t) { (0) }) });
> 
> The above line contains two compound literals.  It also uses a designated
> initializer to initialize the field enabled.  A compound literal is not a
> constant expression.
> 
> The location of the above statement isn't fully clear, but if a compound
> literal occurs outside the body of a function, the initializer list must
> consist of constant expressions.
> 
> Reported-by: Fengguang Wu <fengguang.wu@intel.com>
> Signed-off-by: Mel Gorman <mgorman@suse.de>
> Cc: <stable@vger.kernel.org>
> ---
>  arch/alpha/include/asm/atomic.h |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> --- linux.orig/arch/alpha/include/asm/atomic.h	2012-05-24 19:03:06.000000000 +0800
> +++ linux/arch/alpha/include/asm/atomic.h	2012-08-02 23:01:02.243224220 +0800
> @@ -14,8 +14,8 @@
>   */
>  
>  
> -#define ATOMIC_INIT(i)		( (atomic_t) { (i) } )
> -#define ATOMIC64_INIT(i)	( (atomic64_t) { (i) } )
> +#define ATOMIC_INIT(i)		( { (i) } )
> +#define ATOMIC64_INIT(i)	( { (i) } )
>  
>  #define atomic_read(v)		(*(volatile int *)&(v)->counter)
>  #define atomic64_read(v)	(*(volatile long *)&(v)->counter)

Cheers
Michael.
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Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel.janitors,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [next:akpm 129/309] net/core/sock.c:274:36: error: initializer
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Cc: linux-alpha@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
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To: Michael Cree <mcree@orcon.net.nz>
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On Sun, Aug 12, 2012 at 01:33:09PM +1200, Michael Cree wrote:
> On 03/08/12 03:02, Fengguang Wu wrote:
> > On Thu, Jul 26, 2012 at 10:06:41AM -0700, Tony Luck wrote:
> >> On Tue, Jul 24, 2012 at 10:10 PM, James Bottomley
> >> <James.Bottomley@hansenpartnership.com> wrote:
> >>>> Here is the line in sock.i:
> >>>>
> >>>> struct static_key memalloc_socks = ((struct static_key) { .enabled =
> >>>> ((atomic_t) { (0) }) });
> >>>
> >>> The above line contains two compound literals.  It also uses a designated
> >>> initializer to initialize the field enabled.  A compound literal is not a
> >>> constant expression.
> >>
> >> Seeing the same thing on ia64 building next-20120726.  Same fix works
> >> for me ... so I'll steal this whole changelog and attributes.
> > 
> > I got the same error for alpha, the same fix applies.
> 
> Just trying this patch on Alpha against v3.6-rc1 and it leads to new
> compilation errors, namely:
> 
> init/init_task.c:12: error: braced-group within expression allowed only
> inside a function
> init/init_task.c:13: error: braced-group within expression allowed only
> inside a function
> init/init_task.c:16: error: braced-group within expression allowed only
> inside a function
> init/init_task.c:16: error: braced-group within expression allowed only
> inside a function
> make[1]: *** [init/init_task.o] Error 1

Sorry! This will actually compile:

-#define ATOMIC_INIT(i)         ( { (i) } )
+#define ATOMIC_INIT(i)         { (i) }

Ditto for the 64bit version. I'll send the updated patch.

Thanks,
Fengguang
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From - Thu Nov 08 21:08:31 2018
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From: Fengguang Wu <fengguang.wu@intel.com>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel.janitors,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH] [ALPHA] Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the
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To: Michael Cree <mcree@orcon.net.nz>
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From: Mel Gorman <mgorman@suse.de>

The following build error occurred during an alpha build:

net/core/sock.c:274:36: error: initializer element is not constant

Dave Anglin says:
> Here is the line in sock.i:
>
> struct static_key memalloc_socks = ((struct static_key) { .enabled =
> ((atomic_t) { (0) }) });

The above line contains two compound literals.  It also uses a designated
initializer to initialize the field enabled.  A compound literal is not a
constant expression.

The location of the above statement isn't fully clear, but if a compound
literal occurs outside the body of a function, the initializer list must
consist of constant expressions.

Cc: <stable@vger.kernel.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---
 arch/alpha/include/asm/atomic.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- linux.orig/arch/alpha/include/asm/atomic.h	2012-08-12 10:12:36.667523339 +0800
+++ linux/arch/alpha/include/asm/atomic.h	2012-08-12 10:12:37.659523362 +0800
@@ -14,8 +14,8 @@
  */
 
 
-#define ATOMIC_INIT(i)		( (atomic_t) { (i) } )
-#define ATOMIC64_INIT(i)	( (atomic64_t) { (i) } )
+#define ATOMIC_INIT(i)		{ (i) }
+#define ATOMIC64_INIT(i)	{ (i) }
 
 #define atomic_read(v)		(*(volatile int *)&(v)->counter)
 #define atomic64_read(v)	(*(volatile long *)&(v)->counter)
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Subject: Re: [next:akpm 129/309] net/core/sock.c:274:36: error: initializer
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Cc: linux-alpha@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	Tony Luck <tony.luck@gmail.com>,
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To: Fengguang Wu <fengguang.wu@intel.com>
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On 12/08/12 14:10, Fengguang Wu wrote:
> On Sun, Aug 12, 2012 at 01:33:09PM +1200, Michael Cree wrote:
>> On 03/08/12 03:02, Fengguang Wu wrote:
>>> On Thu, Jul 26, 2012 at 10:06:41AM -0700, Tony Luck wrote:
>>>> On Tue, Jul 24, 2012 at 10:10 PM, James Bottomley
>>>> <James.Bottomley@hansenpartnership.com> wrote:
>>>>>> Here is the line in sock.i:
>>>>>>
>>>>>> struct static_key memalloc_socks = ((struct static_key) { .enabled =
>>>>>> ((atomic_t) { (0) }) });
>>>>>
>>>>> The above line contains two compound literals.  It also uses a designated
>>>>> initializer to initialize the field enabled.  A compound literal is not a
>>>>> constant expression.
>>>>
>>>> Seeing the same thing on ia64 building next-20120726.  Same fix works
>>>> for me ... so I'll steal this whole changelog and attributes.
>>>
>>> I got the same error for alpha, the same fix applies.
>>
>> Just trying this patch on Alpha against v3.6-rc1 and it leads to new
>> compilation errors, namely:
>>
>> init/init_task.c:12: error: braced-group within expression allowed only
>> inside a function
>> init/init_task.c:13: error: braced-group within expression allowed only
>> inside a function
>> init/init_task.c:16: error: braced-group within expression allowed only
>> inside a function
>> init/init_task.c:16: error: braced-group within expression allowed only
>> inside a function
>> make[1]: *** [init/init_task.o] Error 1
> 
> Sorry! This will actually compile:
> 
> -#define ATOMIC_INIT(i)         ( { (i) } )
> +#define ATOMIC_INIT(i)         { (i) }

Thanks, it now compiles correctly.  I'm currently collecting Alpha
patches to send on to Linus so will include this one.

Cheers
Michael.
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel.janitors,gmane.linux.kernel
Subject: Re: [next:akpm 129/309] net/core/sock.c:274:36: error: initializer element is not constant
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Cc: Fengguang Wu <fengguang.wu@intel.com>, linux-alpha@vger.kernel.org,
	Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
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To: Michael Cree <mcree@orcon.net.nz>
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On 11-Aug-12, at 10:42 PM, Michael Cree wrote:

> On 12/08/12 14:10, Fengguang Wu wrote:
>> On Sun, Aug 12, 2012 at 01:33:09PM +1200, Michael Cree wrote:
>>> On 03/08/12 03:02, Fengguang Wu wrote:
>>>> On Thu, Jul 26, 2012 at 10:06:41AM -0700, Tony Luck wrote:
>>>>> On Tue, Jul 24, 2012 at 10:10 PM, James Bottomley
>>>>> <James.Bottomley@hansenpartnership.com> wrote:
>>>>>>> Here is the line in sock.i:
>>>>>>>
>>>>>>> struct static_key memalloc_socks = ((struct static_key)  
>>>>>>> { .enabled =
>>>>>>> ((atomic_t) { (0) }) });
>>>>>>
>>>>>> The above line contains two compound literals.  It also uses a  
>>>>>> designated
>>>>>> initializer to initialize the field enabled.  A compound  
>>>>>> literal is not a
>>>>>> constant expression.
>>>>>
>>>>> Seeing the same thing on ia64 building next-20120726.  Same fix  
>>>>> works
>>>>> for me ... so I'll steal this whole changelog and attributes.
>>>>
>>>> I got the same error for alpha, the same fix applies.
>>>
>>> Just trying this patch on Alpha against v3.6-rc1 and it leads to new
>>> compilation errors, namely:
>>>
>>> init/init_task.c:12: error: braced-group within expression allowed  
>>> only
>>> inside a function
>>> init/init_task.c:13: error: braced-group within expression allowed  
>>> only
>>> inside a function
>>> init/init_task.c:16: error: braced-group within expression allowed  
>>> only
>>> inside a function
>>> init/init_task.c:16: error: braced-group within expression allowed  
>>> only
>>> inside a function
>>> make[1]: *** [init/init_task.o] Error 1
>>
>> Sorry! This will actually compile:
>>
>> -#define ATOMIC_INIT(i)         ( { (i) } )
>> +#define ATOMIC_INIT(i)         { (i) }
>
> Thanks, it now compiles correctly.  I'm currently collecting Alpha
> patches to send on to Linus so will include this one.


A similar change applied to 3.5.1 stable compiles successfully
on parisc.

Regards,
Dave
--
John David Anglin	dave.anglin@bell.net



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diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 6c6defc..af9cf30 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -141,7 +141,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 
 #define atomic_sub_and_test(i,v)	(atomic_sub_return((i),(v)) == 0)
 
-#define ATOMIC_INIT(i)	((atomic_t) { (i) })
+#define ATOMIC_INIT(i)	{ (i) }
 
 #define smp_mb__before_atomic_dec()	smp_mb()
 #define smp_mb__after_atomic_dec()	smp_mb()
@@ -150,7 +150,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 
 #ifdef CONFIG_64BIT
 
-#define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
+#define ATOMIC64_INIT(i) { (i) }
 
 static __inline__ s64
 __atomic64_add_return(s64 i, atomic64_t *v)

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From - Thu Nov 08 21:08:31 2018
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	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
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To: Fengguang Wu <fengguang.wu@intel.com>
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On Sun, 12 Aug 2012 10:14:05 +0800
Fengguang Wu <fengguang.wu@intel.com> wrote:

> From: Mel Gorman <mgorman@suse.de>
> 
> The following build error occurred during an alpha build:
> 
> net/core/sock.c:274:36: error: initializer element is not constant
> 
> Dave Anglin says:
> > Here is the line in sock.i:
> >
> > struct static_key memalloc_socks = ((struct static_key) { .enabled =
> > ((atomic_t) { (0) }) });
> 
> The above line contains two compound literals.  It also uses a designated
> initializer to initialize the field enabled.  A compound literal is not a
> constant expression.
> 
> The location of the above statement isn't fully clear, but if a compound
> literal occurs outside the body of a function, the initializer list must
> consist of constant expressions.
> 
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Mel Gorman <mgorman@suse.de>
> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>

I'll remvoe the Cc:stable from this one - the regression is post-3.5.
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Xref: news.gmane.org gmane.linux.kernel.pci:17125 gmane.linux.ports.parisc:4535

Previously, we enabled PERR & SERR for the first device on the bus, but
left other devices alone.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: linux-parisc@vger.kernel.org
---
 drivers/parisc/lba_pci.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 4f9cf24..4ce57c9 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -630,6 +630,7 @@ static void
 lba_fixup_bus(struct pci_bus *bus)
 {
 	struct list_head *ln;
+	struct pci_dev *dev;
 #ifdef FBB_SUPPORT
 	u16 status;
 #endif
@@ -712,8 +713,8 @@ lba_fixup_bus(struct pci_bus *bus)
 
 	list_for_each(ln, &bus->devices) {
 		int i;
-		struct pci_dev *dev = pci_dev_b(ln);
 
+		dev = pci_dev_b(ln);
 		DBG("lba_fixup_bus() %s\n", pci_name(dev));
 
 		/* Virtualize Device/Bridge Resources. */
@@ -771,6 +772,7 @@ lba_fixup_bus(struct pci_bus *bus)
 
 	/* Lastly enable FBB/PERR/SERR on all devices too */
 	list_for_each(ln, &bus->devices) {
+		dev = pci_dev_b(ln);
 		(void) pci_read_config_word(dev, PCI_COMMAND, &status);
 		status |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR | fbb_enable;
 		(void) pci_write_config_word(dev, PCI_COMMAND, status);


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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci
Subject: [PATCH 4/6] parisc/PCI: Use list_for_each_entry() for bus->devices
	traversal
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Xref: news.gmane.org gmane.linux.ports.parisc:4536 gmane.linux.kernel.pci:17126

Replace list_for_each() + pci_dev_b() with the simpler
list_for_each_entry().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    6 ++----
 drivers/parisc/lba_pci.c |    7 ++-----
 2 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index ffddc4f..4581ee0 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -477,14 +477,12 @@ dino_card_setup(struct pci_bus *bus, void __iomem *base_addr)
 	if (ccio_allocate_resource(dino_dev->hba.dev, res, _8MB,
 				F_EXTEND(0xf0000000UL) | _8MB,
 				F_EXTEND(0xffffffffUL) &~ _8MB, _8MB) < 0) {
-		struct list_head *ln, *tmp_ln;
+		struct pci_dev *dev, *tmp;
 
 		printk(KERN_ERR "Dino: cannot attach bus %s\n",
 		       dev_name(bus->bridge));
 		/* kill the bus, we can't do anything with it */
-		list_for_each_safe(ln, tmp_ln, &bus->devices) {
-			struct pci_dev *dev = pci_dev_b(ln);
-
+		list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
 			list_del(&dev->bus_list);
 		}
 			
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 4ce57c9..fdd63a6 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -629,7 +629,6 @@ truncate_pat_collision(struct resource *root, struct resource *new)
 static void
 lba_fixup_bus(struct pci_bus *bus)
 {
-	struct list_head *ln;
 	struct pci_dev *dev;
 #ifdef FBB_SUPPORT
 	u16 status;
@@ -711,10 +710,9 @@ lba_fixup_bus(struct pci_bus *bus)
 
 	}
 
-	list_for_each(ln, &bus->devices) {
+	list_for_each_entry(dev, &bus->devices, bus_list) {
 		int i;
 
-		dev = pci_dev_b(ln);
 		DBG("lba_fixup_bus() %s\n", pci_name(dev));
 
 		/* Virtualize Device/Bridge Resources. */
@@ -771,8 +769,7 @@ lba_fixup_bus(struct pci_bus *bus)
 	}
 
 	/* Lastly enable FBB/PERR/SERR on all devices too */
-	list_for_each(ln, &bus->devices) {
-		dev = pci_dev_b(ln);
+	list_for_each_entry(dev, &bus->devices, bus_list) {
 		(void) pci_read_config_word(dev, PCI_COMMAND, &status);
 		status |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR | fbb_enable;
 		(void) pci_write_config_word(dev, PCI_COMMAND, status);

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From - Thu Nov 08 21:08:32 2018
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Newsgroups: gmane.linux.kernel.pci,gmane.linux.kernel.pcmcia.devel,gmane.linux.ports.parisc
Subject: [PATCH v2 13/16] parisc/PCI: Enable PERR/SERR on all devices
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Cc: linux-pcmcia@lists.infradead.org, Yinghai Lu <yinghai@kernel.org>,
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	Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
To: linux-pci@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.pci/17166>

Previously, we enabled PERR & SERR for the first device on the bus, but
left other devices alone.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: linux-parisc@vger.kernel.org
---
 drivers/parisc/lba_pci.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 4f9cf24..4ce57c9 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -630,6 +630,7 @@ static void
 lba_fixup_bus(struct pci_bus *bus)
 {
 	struct list_head *ln;
+	struct pci_dev *dev;
 #ifdef FBB_SUPPORT
 	u16 status;
 #endif
@@ -712,8 +713,8 @@ lba_fixup_bus(struct pci_bus *bus)
 
 	list_for_each(ln, &bus->devices) {
 		int i;
-		struct pci_dev *dev = pci_dev_b(ln);
 
+		dev = pci_dev_b(ln);
 		DBG("lba_fixup_bus() %s\n", pci_name(dev));
 
 		/* Virtualize Device/Bridge Resources. */
@@ -771,6 +772,7 @@ lba_fixup_bus(struct pci_bus *bus)
 
 	/* Lastly enable FBB/PERR/SERR on all devices too */
 	list_for_each(ln, &bus->devices) {
+		dev = pci_dev_b(ln);
 		(void) pci_read_config_word(dev, PCI_COMMAND, &status);
 		status |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR | fbb_enable;
 		(void) pci_write_config_word(dev, PCI_COMMAND, status);


From - Thu Nov 08 21:08:32 2018
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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.kernel.pci,gmane.linux.kernel.pcmcia.devel,gmane.linux.ports.parisc
Subject: [PATCH v2 14/16] parisc/PCI: Use list_for_each_entry() for
	bus->devices traversal
Date: Fri, 17 Aug 2012 17:36:56 -0600
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Replace list_for_each() + pci_dev_b() with the simpler
list_for_each_entry().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    6 ++----
 drivers/parisc/lba_pci.c |    7 ++-----
 2 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index ffddc4f..4581ee0 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -477,14 +477,12 @@ dino_card_setup(struct pci_bus *bus, void __iomem *base_addr)
 	if (ccio_allocate_resource(dino_dev->hba.dev, res, _8MB,
 				F_EXTEND(0xf0000000UL) | _8MB,
 				F_EXTEND(0xffffffffUL) &~ _8MB, _8MB) < 0) {
-		struct list_head *ln, *tmp_ln;
+		struct pci_dev *dev, *tmp;
 
 		printk(KERN_ERR "Dino: cannot attach bus %s\n",
 		       dev_name(bus->bridge));
 		/* kill the bus, we can't do anything with it */
-		list_for_each_safe(ln, tmp_ln, &bus->devices) {
-			struct pci_dev *dev = pci_dev_b(ln);
-
+		list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
 			list_del(&dev->bus_list);
 		}
 			
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 4ce57c9..fdd63a6 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -629,7 +629,6 @@ truncate_pat_collision(struct resource *root, struct resource *new)
 static void
 lba_fixup_bus(struct pci_bus *bus)
 {
-	struct list_head *ln;
 	struct pci_dev *dev;
 #ifdef FBB_SUPPORT
 	u16 status;
@@ -711,10 +710,9 @@ lba_fixup_bus(struct pci_bus *bus)
 
 	}
 
-	list_for_each(ln, &bus->devices) {
+	list_for_each_entry(dev, &bus->devices, bus_list) {
 		int i;
 
-		dev = pci_dev_b(ln);
 		DBG("lba_fixup_bus() %s\n", pci_name(dev));
 
 		/* Virtualize Device/Bridge Resources. */
@@ -771,8 +769,7 @@ lba_fixup_bus(struct pci_bus *bus)
 	}
 
 	/* Lastly enable FBB/PERR/SERR on all devices too */
-	list_for_each(ln, &bus->devices) {
-		dev = pci_dev_b(ln);
+	list_for_each_entry(dev, &bus->devices, bus_list) {
 		(void) pci_read_config_word(dev, PCI_COMMAND, &status);
 		status |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR | fbb_enable;
 		(void) pci_write_config_word(dev, PCI_COMMAND, status);


From - Thu Nov 08 21:08:32 2018
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From - Thu Nov 08 21:08:32 2018
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X-Mozilla-Keys:                                                                                 

From - Thu Nov 08 21:08:32 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Frederic Weisbecker <fweisbec@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.ports.alpha
Subject: [PATCH 00/10] rcu: Add missing RCU idle APIs on idle loop
Date: Wed, 22 Aug 2012 18:23:38 +0200
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Cc: Frederic Weisbecker <fweisbec@gmail.com>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	Chris Zankel <chris@zankel.net>, "3.2.x.." <stable@kernel.org>,
	Chen Liqin <liqin.chen@sunplusct.com>,
	Lennox Wu <lennox.wu@gmail.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Parisc <linux-parisc@vger.kernel.org>,
	David Howells <dhowells@redhat.com>,
	Koichi Yasutake <yasutake.koichi@jp.panasonic.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	m68k <linux-m68k@lists.linux-m68k.org>,
	Hirokazu Takata <takata@linux-m32r.org>,
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	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	alpha <linux-alpha@vger.kernel.org>
To: LKML <linux-kernel@vger.kernel.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:4541 gmane.linux.kernel:1347961 gmane.linux.kernel.stable:30279 gmane.linux.ports.alpha:1858
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So this fixes some potential RCU stalls in a bunch of architectures.
When rcu_idle_enter()/rcu_idle_exit() became a requirement, we forgot
to handle the architectures that don't support CONFIG_NO_HZ.

I guess the set should be dispatched into arch maintainer trees.

I'm sorry I haven't built tested everywhere. But the changes are
small and need to be at least boot tested anyway.

Also many of these archs use the same kind of idle loop:

void cpu_idle(void)
{
        while (1) {
                rcu_idle_enter();
                while (!need_resched())
                        //power saving function()
                rcu_idle_exit();
                schedule_preempt_disabled();
        }
}

So once the set is merged, I'll probably try to consolidate this with a generic
simple cpu_idle() that does the above and calls the arch power saving
function. This will be only for archs that use this simple idle loop
of course.

Thanks.

Frederic Weisbecker (10):
  alpha: Add missing RCU idle APIs on idle loop
  cris: Add missing RCU idle APIs on idle loop
  frv: Add missing RCU idle APIs on idle loop
  h8300: Add missing RCU idle APIs on idle loop
  m32r: Add missing RCU idle APIs on idle loop
  m68k: Add missing RCU idle APIs on idle loop
  mn10300: Add missing RCU idle APIs on idle loop
  parisc: Add missing RCU idle APIs on idle loop
  score: Add missing RCU idle APIs on idle loop
  xtensa: Add missing RCU idle APIs on idle loop

 arch/alpha/kernel/process.c   |    6 +++++-
 arch/cris/kernel/process.c    |    3 +++
 arch/frv/kernel/process.c     |    3 +++
 arch/h8300/kernel/process.c   |    3 +++
 arch/m32r/kernel/process.c    |    3 +++
 arch/m68k/kernel/process.c    |    3 +++
 arch/mn10300/kernel/process.c |    3 +++
 arch/parisc/kernel/process.c  |    3 +++
 arch/score/kernel/process.c   |    4 +++-
 arch/xtensa/kernel/process.c  |    3 +++
 10 files changed, 32 insertions(+), 2 deletions(-)

-- 
1.7.5.4

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From - Thu Nov 08 21:08:32 2018
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From: Frederic Weisbecker <fweisbec@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.stable
Subject: [PATCH 08/10] parisc: Add missing RCU idle APIs on idle loop
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In the old times, the whole idle task was considered
as an RCU quiescent state. But as RCU became more and
more successful overtime, some RCU read side critical
section have been added even in the code of some
architectures idle tasks, for tracing for example.

So nowadays, rcu_idle_enter() and rcu_idle_exit() must
be called by the architecture to tell RCU about the part
in the idle loop that doesn't make use of rcu read side
critical sections, typically the part that puts the CPU
in low power mode.

This is necessary for RCU to find the quiescent states in
idle in order to complete grace periods.

Add this missing pair of calls in the parisc's idle loop.

Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Parisc <linux-parisc@vger.kernel.org>
Cc: 3.2.x.. <stable@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 arch/parisc/kernel/process.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d4b94b3..c54a4db 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -48,6 +48,7 @@
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
 #include <linux/uaccess.h>
+#include <linux/rcupdate.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -69,8 +70,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			barrier();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 		check_pgt_cache();
 	}
-- 
1.7.5.4


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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.ports.alpha
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Cc: LKML <linux-kernel@vger.kernel.org>,
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To: Frederic Weisbecker <fweisbec@gmail.com>
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On Wed, Aug 22, 2012 at 6:23 PM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
> So this fixes some potential RCU stalls in a bunch of architectures.
> When rcu_idle_enter()/rcu_idle_exit() became a requirement, we forgot
> to handle the architectures that don't support CONFIG_NO_HZ.
>
> I guess the set should be dispatched into arch maintainer trees.

I can take the m68k version, but are you sure you want it this way?
Each of them must be in mainline before they can enter stable.

> I'm sorry I haven't built tested everywhere. But the changes are
> small and need to be at least boot tested anyway.

Builds and boots fine on m68k under ARAnyM.
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> (for m68k)

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On Wed, Aug 22, 2012 at 07:18:04PM +0200, Geert Uytterhoeven wrote:
> On Wed, Aug 22, 2012 at 6:23 PM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
> > So this fixes some potential RCU stalls in a bunch of architectures.
> > When rcu_idle_enter()/rcu_idle_exit() became a requirement, we forgot
> > to handle the architectures that don't support CONFIG_NO_HZ.
> >
> > I guess the set should be dispatched into arch maintainer trees.
> 
> I can take the m68k version, but are you sure you want it this way?
> Each of them must be in mainline before they can enter stable.

Yeah, I was thinking the right route is for these patches to be
carried by arch maintainer who then push to Linus and then this goes
to stable.

Is that ok for you?

Otherwise I can carry the patches myself. In a tree of my own, or
Paul's or mmotm. As long as I have your ack.

Thanks.

> 
> > I'm sorry I haven't built tested everywhere. But the changes are
> > small and need to be at least boot tested anyway.
> 
> Builds and boots fine on m68k under ARAnyM.
> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> (for m68k)
> 
> Gr{oetje,eeting}s,
> 
>                         Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds
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Hi,

Changes since v1:

- Fixed preempt handling in alpha idle loop
- added ack from Geert
- fixed stable email address, sorry :-/

This time I built tested everywhere but: h8300 (compiler internal error),
and mn10300, parisc, score (cross compilers not available in
ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/)

For testing, you can pull from:

git://github.com/fweisbec/linux-dynticks.git
	rcu/idle-fix-v2 

Thanks.

Frederic Weisbecker (11):
  alpha: Fix preemption handling in idle loop
  alpha: Add missing RCU idle APIs on idle loop
  cris: Add missing RCU idle APIs on idle loop
  frv: Add missing RCU idle APIs on idle loop
  h8300: Add missing RCU idle APIs on idle loop
  m32r: Add missing RCU idle APIs on idle loop
  m68k: Add missing RCU idle APIs on idle loop
  mn10300: Add missing RCU idle APIs on idle loop
  parisc: Add missing RCU idle APIs on idle loop
  score: Add missing RCU idle APIs on idle loop
  xtensa: Add missing RCU idle APIs on idle loop

 arch/alpha/kernel/process.c   |    6 +++++-
 arch/alpha/kernel/smp.c       |    1 +
 arch/cris/kernel/process.c    |    3 +++
 arch/frv/kernel/process.c     |    3 +++
 arch/h8300/kernel/process.c   |    3 +++
 arch/m32r/kernel/process.c    |    3 +++
 arch/m68k/kernel/process.c    |    3 +++
 arch/mn10300/kernel/process.c |    3 +++
 arch/parisc/kernel/process.c  |    3 +++
 arch/score/kernel/process.c   |    4 +++-
 arch/xtensa/kernel/process.c  |    3 +++
 11 files changed, 33 insertions(+), 2 deletions(-)

-- 
1.7.5.4

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From: Frederic Weisbecker <fweisbec@gmail.com>
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Subject: [PATCH 09/11] parisc: Add missing RCU idle APIs on idle loop
Date: Thu, 23 Aug 2012 16:58:33 +0200
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In the old times, the whole idle task was considered
as an RCU quiescent state. But as RCU became more and
more successful overtime, some RCU read side critical
section have been added even in the code of some
architectures idle tasks, for tracing for example.

So nowadays, rcu_idle_enter() and rcu_idle_exit() must
be called by the architecture to tell RCU about the part
in the idle loop that doesn't make use of rcu read side
critical sections, typically the part that puts the CPU
in low power mode.

This is necessary for RCU to find the quiescent states in
idle in order to complete grace periods.

Add this missing pair of calls in the parisc's idle loop.

Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Parisc <linux-parisc@vger.kernel.org>
Cc: 3.2.x.. <stable@vger.kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 arch/parisc/kernel/process.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d4b94b3..c54a4db 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -48,6 +48,7 @@
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
 #include <linux/uaccess.h>
+#include <linux/rcupdate.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -69,8 +70,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			barrier();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 		check_pgt_cache();
 	}
-- 
1.7.5.4


From - Thu Nov 08 21:08:32 2018
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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.ports.parisc
Subject: Re: [PATCH 00/10] rcu: Add missing RCU idle APIs on idle loop
Date: Thu, 23 Aug 2012 22:23:22 +0200
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To: Frederic Weisbecker <fweisbec@gmail.com>
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Hi Frederic,

On Thu, Aug 23, 2012 at 1:02 PM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
> On Wed, Aug 22, 2012 at 07:18:04PM +0200, Geert Uytterhoeven wrote:
>> On Wed, Aug 22, 2012 at 6:23 PM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
>> > So this fixes some potential RCU stalls in a bunch of architectures.
>> > When rcu_idle_enter()/rcu_idle_exit() became a requirement, we forgot
>> > to handle the architectures that don't support CONFIG_NO_HZ.
>> >
>> > I guess the set should be dispatched into arch maintainer trees.
>>
>> I can take the m68k version, but are you sure you want it this way?
>> Each of them must be in mainline before they can enter stable.
>
> Yeah, I was thinking the right route is for these patches to be
> carried by arch maintainer who then push to Linus and then this goes
> to stable.
>
> Is that ok for you?
>
> Otherwise I can carry the patches myself. In a tree of my own, or
> Paul's or mmotm. As long as I have your ack.

I applied your patch to the m68k for-3.6/for-linus branch.
I'll ask Linus to pull later in the rc cycle (right now I don't have
anything else
queued for 3.6).
Still, I think it's better to just collect acks and send it to Linus
in one shot,
so it can go into stable in one shot too.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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Subject: Re: [PATCH 00/10] rcu: Add missing RCU idle APIs on idle loop
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Cc: LKML <linux-kernel@vger.kernel.org>,
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	Chris Zankel <chris@zankel.net>, "3.2.x.." <stable@kernel.org>,
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On Thu, Aug 23, 2012 at 10:23:22PM +0200, Geert Uytterhoeven wrote:
> Hi Frederic,
> 
> On Thu, Aug 23, 2012 at 1:02 PM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
> > On Wed, Aug 22, 2012 at 07:18:04PM +0200, Geert Uytterhoeven wrote:
> >> On Wed, Aug 22, 2012 at 6:23 PM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
> >> > So this fixes some potential RCU stalls in a bunch of architectures.
> >> > When rcu_idle_enter()/rcu_idle_exit() became a requirement, we forgot
> >> > to handle the architectures that don't support CONFIG_NO_HZ.
> >> >
> >> > I guess the set should be dispatched into arch maintainer trees.
> >>
> >> I can take the m68k version, but are you sure you want it this way?
> >> Each of them must be in mainline before they can enter stable.
> >
> > Yeah, I was thinking the right route is for these patches to be
> > carried by arch maintainer who then push to Linus and then this goes
> > to stable.
> >
> > Is that ok for you?
> >
> > Otherwise I can carry the patches myself. In a tree of my own, or
> > Paul's or mmotm. As long as I have your ack.
> 
> I applied your patch to the m68k for-3.6/for-linus branch.
> I'll ask Linus to pull later in the rc cycle (right now I don't have
> anything else
> queued for 3.6).
> Still, I think it's better to just collect acks and send it to Linus
> in one shot,
> so it can go into stable in one shot too.

Sure I can do that if you prefer.

Thanks.

> 
> Gr{oetje,eeting}s,
> 
>                         Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds
--
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To: Frederic Weisbecker <fweisbec@gmail.com>
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On 8/22/2012 12:23 PM, Frederic Weisbecker wrote:
> In the old times, the whole idle task was considered
> as an RCU quiescent state. But as RCU became more and
> more successful overtime, some RCU read side critical
> section have been added even in the code of some
> architectures idle tasks, for tracing for example.
>
> So nowadays, rcu_idle_enter() and rcu_idle_exit() must
> be called by the architecture to tell RCU about the part
> in the idle loop that doesn't make use of rcu read side
> critical sections, typically the part that puts the CPU
> in low power mode.
>
> This is necessary for RCU to find the quiescent states in
> idle in order to complete grace periods.
>
> Add this missing pair of calls in the parisc's idle loop.
>
> Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
> Cc: James E.J. Bottomley <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Parisc <linux-parisc@vger.kernel.org>
> Cc: 3.2.x.. <stable@kernel.org>
> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> ---
>   arch/parisc/kernel/process.c |    3 +++
>   1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
> index d4b94b3..c54a4db 100644
> --- a/arch/parisc/kernel/process.c
> +++ b/arch/parisc/kernel/process.c
> @@ -48,6 +48,7 @@
>   #include <linux/unistd.h>
>   #include <linux/kallsyms.h>
>   #include <linux/uaccess.h>
> +#include <linux/rcupdate.h>
>   
>   #include <asm/io.h>
>   #include <asm/asm-offsets.h>
> @@ -69,8 +70,10 @@ void cpu_idle(void)
>   
>   	/* endless idle loop with no priority at all */
>   	while (1) {
> +		rcu_idle_enter();
>   		while (!need_resched())
>   			barrier();
> +		rcu_idle_exit();
>   		schedule_preempt_disabled();
>   		check_pgt_cache();
>   	}

Builds and boots fine on parisc.
Acked-by: John David Anglin<dave.anglin@bell.net>

Dave

-- 
John David Anglin    dave.anglin@bell.net


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Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.ports.parisc,gmane.linux.ports.alpha
Subject: Re: [PATCH 00/11] rcu: Add missing RCU idle APIs on idle loop v2
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	Matt Turner <mattst88@gmail.com>,
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	Michael Cree <mcree@orcon.net.nz>
To: Frederic Weisbecker <fweisbec@gmail.com>
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On Thu, Aug 23, 2012 at 04:58:24PM +0200, Frederic Weisbecker wrote:
> Hi,
> 
> Changes since v1:
> 
> - Fixed preempt handling in alpha idle loop
> - added ack from Geert
> - fixed stable email address, sorry :-/
> 
> This time I built tested everywhere but: h8300 (compiler internal error),
> and mn10300, parisc, score (cross compilers not available in
> ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/)
> 
> For testing, you can pull from:
> 
> git://github.com/fweisbec/linux-dynticks.git
> 	rcu/idle-fix-v2 
> 
> Thanks.

I have queued these on -rcu branch rcu/idle:

	git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git

This problem has been in place since 3.3, so it is hard to argue that
it is a regression for this merge window.  I have therefore queued it
for 3.7.

								Thanx, Paul

> Frederic Weisbecker (11):
>   alpha: Fix preemption handling in idle loop
>   alpha: Add missing RCU idle APIs on idle loop
>   cris: Add missing RCU idle APIs on idle loop
>   frv: Add missing RCU idle APIs on idle loop
>   h8300: Add missing RCU idle APIs on idle loop
>   m32r: Add missing RCU idle APIs on idle loop
>   m68k: Add missing RCU idle APIs on idle loop
>   mn10300: Add missing RCU idle APIs on idle loop
>   parisc: Add missing RCU idle APIs on idle loop
>   score: Add missing RCU idle APIs on idle loop
>   xtensa: Add missing RCU idle APIs on idle loop
> 
>  arch/alpha/kernel/process.c   |    6 +++++-
>  arch/alpha/kernel/smp.c       |    1 +
>  arch/cris/kernel/process.c    |    3 +++
>  arch/frv/kernel/process.c     |    3 +++
>  arch/h8300/kernel/process.c   |    3 +++
>  arch/m32r/kernel/process.c    |    3 +++
>  arch/m68k/kernel/process.c    |    3 +++
>  arch/mn10300/kernel/process.c |    3 +++
>  arch/parisc/kernel/process.c  |    3 +++
>  arch/score/kernel/process.c   |    4 +++-
>  arch/xtensa/kernel/process.c  |    3 +++
>  11 files changed, 33 insertions(+), 2 deletions(-)
> 
> -- 
> 1.7.5.4
> 


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Subject: Re: [PATCH 00/11] rcu: Add missing RCU idle APIs on idle loop v2
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	m68k <linux-m68k@lists.linux-m68k.org>,
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	Jesper Nilsson <jesper.nilsson@axis.com>,
	Cris <linux-cris-kernel@axis.com>,
	Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	alpha <linux-alpha@vger.kernel.org>,
	Michael Cree <m
To: paulmck@linux.vnet.ibm.com
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On Fri, 2012-08-24 at 14:26 -0700, Paul E. McKenney wrote:
> On Thu, Aug 23, 2012 at 04:58:24PM +0200, Frederic Weisbecker wrote:
> > Hi,
> >=20
> > Changes since v1:
> >=20
> > - Fixed preempt handling in alpha idle loop
> > - added ack from Geert
> > - fixed stable email address, sorry :-/
> >=20
> > This time I built tested everywhere but: h8300 (compiler internal error=
),
> > and mn10300, parisc, score (cross compilers not available in
> > ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/)
> >=20
> > For testing, you can pull from:
> >=20
> > git://github.com/fweisbec/linux-dynticks.git
> > 	rcu/idle-fix-v2=20
> >=20
> > Thanks.
>=20
> I have queued these on -rcu branch rcu/idle:
>=20
> 	git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
>=20
> This problem has been in place since 3.3, so it is hard to argue that
> it is a regression for this merge window.  I have therefore queued it
> for 3.7.

I don't follow that; I would expect any serious bug fix (serious enough
for a stable update) to be acceptable for 3.6 at this point.

If the regression occurred in 3.3, then the cc lines should be something
like:

    Cc: <stable@vger.kernel.org> # 3.3+

and not the current:

    Cc: 3.2.x.. <stable@vger.kernel.org>

(Note, version annotations should be on the right of the address, not in
the 'real name' position on the left.)

Ben.

--=20
Ben Hutchings
Experience is what causes a person to make new mistakes instead of old ones=
.

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From - Thu Nov 08 21:08:33 2018
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	alpha <linux-alpha@vger.
To: Ben Hutchings <ben@decadent.org.uk>
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On 25/08/12 13:19, Ben Hutchings wrote:
> On Fri, 2012-08-24 at 14:26 -0700, Paul E. McKenney wrote:
>> On Thu, Aug 23, 2012 at 04:58:24PM +0200, Frederic Weisbecker wrote:
>>> Hi,
>>>
>>> Changes since v1:
>>>
>>> - Fixed preempt handling in alpha idle loop
>>> - added ack from Geert
>>> - fixed stable email address, sorry :-/
>>>
>>> This time I built tested everywhere but: h8300 (compiler internal error),
>>> and mn10300, parisc, score (cross compilers not available in
>>> ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/)
>>>
>>> For testing, you can pull from:
>>>
>>> git://github.com/fweisbec/linux-dynticks.git
>>> 	rcu/idle-fix-v2 
>>>
>>> Thanks.
>>
>> I have queued these on -rcu branch rcu/idle:
>>
>> 	git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
>>
>> This problem has been in place since 3.3, so it is hard to argue that
>> it is a regression for this merge window.  I have therefore queued it
>> for 3.7.
> 
> I don't follow that; I would expect any serious bug fix (serious enough
> for a stable update) to be acceptable for 3.6 at this point.
> 
> If the regression occurred in 3.3, then the cc lines should be something
> like:
> 
>     Cc: <stable@vger.kernel.org> # 3.3+
> 
> and not the current:
> 
>     Cc: 3.2.x.. <stable@vger.kernel.org>

The Alpha patches fix an even earlier regression resulting in RCU CPU
stalls on an SMP kernel built for generic Alpha (which includes the
current Debian 3.2-alpha-smp kernel) and renders the kernel pretty much
unuseable.  I've only tested the two alpha patches together but maybe
just the first patch (1/11 alpha: Fix preemption handling in idle loop)
might be needed to fix the problem in 3.2.   I'll test and let you know.

Cheers
Michael.
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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.ports.parisc,gmane.linux.ports.alpha
Subject: Re: [PATCH 00/11] rcu: Add missing RCU idle APIs on idle loop v2
Date: Fri, 24 Aug 2012 20:50:47 -0700
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Cc: Frederic Weisbecker <fweisbec@gmail.com>,
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	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
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	Michael Cree <m
To: Ben Hutchings <ben@decadent.org.uk>
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On Sat, Aug 25, 2012 at 02:19:14AM +0100, Ben Hutchings wrote:
> On Fri, 2012-08-24 at 14:26 -0700, Paul E. McKenney wrote:
> > On Thu, Aug 23, 2012 at 04:58:24PM +0200, Frederic Weisbecker wrote:
> > > Hi,
> > > 
> > > Changes since v1:
> > > 
> > > - Fixed preempt handling in alpha idle loop
> > > - added ack from Geert
> > > - fixed stable email address, sorry :-/
> > > 
> > > This time I built tested everywhere but: h8300 (compiler internal error),
> > > and mn10300, parisc, score (cross compilers not available in
> > > ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/)
> > > 
> > > For testing, you can pull from:
> > > 
> > > git://github.com/fweisbec/linux-dynticks.git
> > > 	rcu/idle-fix-v2 
> > > 
> > > Thanks.
> > 
> > I have queued these on -rcu branch rcu/idle:
> > 
> > 	git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
> > 
> > This problem has been in place since 3.3, so it is hard to argue that
> > it is a regression for this merge window.  I have therefore queued it
> > for 3.7.
> 
> I don't follow that; I would expect any serious bug fix (serious enough
> for a stable update) to be acceptable for 3.6 at this point.

OK, if any of the arch maintainers wishes to submit the patch to 3.6,
they are free to do so -- just let me know and I will drop the patch from
my tree.

That said, all this does is cause spurious warnings to be printed, so
not sure it really qualifies as serious.  But I am happy to leave that
decision with the individual arch maintainers -- it is their arch,
after all, so their decision.

							Thanx, Paul

> If the regression occurred in 3.3, then the cc lines should be something
> like:
> 
>     Cc: <stable@vger.kernel.org> # 3.3+
> 
> and not the current:
> 
>     Cc: 3.2.x.. <stable@vger.kernel.org>
> 
> (Note, version annotations should be on the right of the address, not in
> the 'real name' position on the left.)


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From: Frederic Weisbecker <fweisbec@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.ports.alpha
Subject: Re: [PATCH 00/11] rcu: Add missing RCU idle APIs on idle loop v2
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Cc: Ben Hutchings <ben@decadent.org.uk>,
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	Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	alpha <linux-alpha@vger.kernel.org>,
	Michael Cree <mcree@
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
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On Fri, Aug 24, 2012 at 08:50:47PM -0700, Paul E. McKenney wrote:
> On Sat, Aug 25, 2012 at 02:19:14AM +0100, Ben Hutchings wrote:
> > On Fri, 2012-08-24 at 14:26 -0700, Paul E. McKenney wrote:
> > > On Thu, Aug 23, 2012 at 04:58:24PM +0200, Frederic Weisbecker wrote:
> > > > Hi,
> > > > 
> > > > Changes since v1:
> > > > 
> > > > - Fixed preempt handling in alpha idle loop
> > > > - added ack from Geert
> > > > - fixed stable email address, sorry :-/
> > > > 
> > > > This time I built tested everywhere but: h8300 (compiler internal error),
> > > > and mn10300, parisc, score (cross compilers not available in
> > > > ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/)
> > > > 
> > > > For testing, you can pull from:
> > > > 
> > > > git://github.com/fweisbec/linux-dynticks.git
> > > > 	rcu/idle-fix-v2 
> > > > 
> > > > Thanks.
> > > 
> > > I have queued these on -rcu branch rcu/idle:
> > > 
> > > 	git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
> > > 
> > > This problem has been in place since 3.3, so it is hard to argue that
> > > it is a regression for this merge window.  I have therefore queued it
> > > for 3.7.
> > 
> > I don't follow that; I would expect any serious bug fix (serious enough
> > for a stable update) to be acceptable for 3.6 at this point.
> 
> OK, if any of the arch maintainers wishes to submit the patch to 3.6,
> they are free to do so -- just let me know and I will drop the patch from
> my tree.
> 
> That said, all this does is cause spurious warnings to be printed, so
> not sure it really qualifies as serious.  But I am happy to leave that
> decision with the individual arch maintainers -- it is their arch,
> after all, so their decision.

Couldn't that cause hung tasks due to long lasting synchronize_rcu() ?
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.ports.alpha
Subject: Re: [PATCH 00/11] rcu: Add missing RCU idle APIs on idle loop v2
Date: Sat, 25 Aug 2012 09:18:06 -0700
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Cc: Ben Hutchings <ben@decadent.org.uk>,
	LKML <linux-kernel@vger.kernel.org>,
	Chris Zankel <chris@zankel.net>,
	"3.2.x.." <stable@vger.kernel.org>,
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	alpha <linux-alpha@vger.kernel.org>,
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To: Frederic Weisbecker <fweisbec@gmail.com>
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On Sat, Aug 25, 2012 at 03:16:49PM +0200, Frederic Weisbecker wrote:
> On Fri, Aug 24, 2012 at 08:50:47PM -0700, Paul E. McKenney wrote:
> > On Sat, Aug 25, 2012 at 02:19:14AM +0100, Ben Hutchings wrote:
> > > On Fri, 2012-08-24 at 14:26 -0700, Paul E. McKenney wrote:
> > > > On Thu, Aug 23, 2012 at 04:58:24PM +0200, Frederic Weisbecker wrote:
> > > > > Hi,
> > > > > 
> > > > > Changes since v1:
> > > > > 
> > > > > - Fixed preempt handling in alpha idle loop
> > > > > - added ack from Geert
> > > > > - fixed stable email address, sorry :-/
> > > > > 
> > > > > This time I built tested everywhere but: h8300 (compiler internal error),
> > > > > and mn10300, parisc, score (cross compilers not available in
> > > > > ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/)
> > > > > 
> > > > > For testing, you can pull from:
> > > > > 
> > > > > git://github.com/fweisbec/linux-dynticks.git
> > > > > 	rcu/idle-fix-v2 
> > > > > 
> > > > > Thanks.
> > > > 
> > > > I have queued these on -rcu branch rcu/idle:
> > > > 
> > > > 	git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
> > > > 
> > > > This problem has been in place since 3.3, so it is hard to argue that
> > > > it is a regression for this merge window.  I have therefore queued it
> > > > for 3.7.
> > > 
> > > I don't follow that; I would expect any serious bug fix (serious enough
> > > for a stable update) to be acceptable for 3.6 at this point.
> > 
> > OK, if any of the arch maintainers wishes to submit the patch to 3.6,
> > they are free to do so -- just let me know and I will drop the patch from
> > my tree.
> > 
> > That said, all this does is cause spurious warnings to be printed, so
> > not sure it really qualifies as serious.  But I am happy to leave that
> > decision with the individual arch maintainers -- it is their arch,
> > after all, so their decision.
> 
> Couldn't that cause hung tasks due to long lasting synchronize_rcu() ?

In theory, definitely.  In practice, they haven't been running into it,
or they would be reporting hangs.

							Thanx, Paul

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From - Thu Nov 08 21:08:33 2018
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From: Michael Cree <mcree@orcon.net.nz>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.ports.parisc,gmane.linux.ports.alpha
Subject: Re: [PATCH 00/11] rcu: Add missing RCU idle APIs on idle loop v2
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	Matt Turner <mattst88@gmail.com>,
	alpha <linux-al
To: paulmck@linux.vnet.ibm.com
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On 26/08/12 04:18, Paul E. McKenney wrote:
> On Sat, Aug 25, 2012 at 03:16:49PM +0200, Frederic Weisbecker wrote:
>> On Fri, Aug 24, 2012 at 08:50:47PM -0700, Paul E. McKenney wrote:
>>> On Sat, Aug 25, 2012 at 02:19:14AM +0100, Ben Hutchings wrote:
>>>> On Fri, 2012-08-24 at 14:26 -0700, Paul E. McKenney wrote:
>>>>> On Thu, Aug 23, 2012 at 04:58:24PM +0200, Frederic Weisbecker wrote:
>>>>>> Hi,
>>>>>>
>>>>>> Changes since v1:
>>>>>>
>>>>>> - Fixed preempt handling in alpha idle loop
>>>>>> - added ack from Geert
>>>>>> - fixed stable email address, sorry :-/
>>>>>>
>>>>>> This time I built tested everywhere but: h8300 (compiler internal error),
>>>>>> and mn10300, parisc, score (cross compilers not available in
>>>>>> ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/)
>>>>>>
>>>>>> For testing, you can pull from:
>>>>>>
>>>>>> git://github.com/fweisbec/linux-dynticks.git
>>>>>> 	rcu/idle-fix-v2 
>>>>>>
>>>>>> Thanks.
>>>>>
>>>>> I have queued these on -rcu branch rcu/idle:
>>>>>
>>>>> 	git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
>>>>>
>>>>> This problem has been in place since 3.3, so it is hard to argue that
>>>>> it is a regression for this merge window.  I have therefore queued it
>>>>> for 3.7.
>>>>
>>>> I don't follow that; I would expect any serious bug fix (serious enough
>>>> for a stable update) to be acceptable for 3.6 at this point.
>>>
>>> OK, if any of the arch maintainers wishes to submit the patch to 3.6,
>>> they are free to do so -- just let me know and I will drop the patch from
>>> my tree.
>>>
>>> That said, all this does is cause spurious warnings to be printed, so
>>> not sure it really qualifies as serious.  But I am happy to leave that
>>> decision with the individual arch maintainers -- it is their arch,
>>> after all, so their decision.
>>
>> Couldn't that cause hung tasks due to long lasting synchronize_rcu() ?
> 
> In theory, definitely.  In practice, they haven't been running into it,
> or they would be reporting hangs.

I am hereby reporting that RCU CPU stall warnings and hung tasks are
being experienced on SMP kernels built for generic Alpha. This problem
dates back quite a few kernel releases. The discussed patches appear to
fix the problem.

A backport to the 3.2 kernel, of at least the Alpha patches, would be
very much appreciated! :-)

Cheers
Michael.

From - Thu Nov 08 21:08:33 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.ports.alpha
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Cc: Frederic Weisbecker <fweisbec@gmail.com>,
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To: Michael Cree <mcree@orcon.net.nz>
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On Sun, Aug 26, 2012 at 09:15:27AM +1200, Michael Cree wrote:
> On 26/08/12 04:18, Paul E. McKenney wrote:
> > On Sat, Aug 25, 2012 at 03:16:49PM +0200, Frederic Weisbecker wrote:
> >> On Fri, Aug 24, 2012 at 08:50:47PM -0700, Paul E. McKenney wrote:
> >>> On Sat, Aug 25, 2012 at 02:19:14AM +0100, Ben Hutchings wrote:
> >>>> On Fri, 2012-08-24 at 14:26 -0700, Paul E. McKenney wrote:
> >>>>> On Thu, Aug 23, 2012 at 04:58:24PM +0200, Frederic Weisbecker wrote:
> >>>>>> Hi,
> >>>>>>
> >>>>>> Changes since v1:
> >>>>>>
> >>>>>> - Fixed preempt handling in alpha idle loop
> >>>>>> - added ack from Geert
> >>>>>> - fixed stable email address, sorry :-/
> >>>>>>
> >>>>>> This time I built tested everywhere but: h8300 (compiler internal error),
> >>>>>> and mn10300, parisc, score (cross compilers not available in
> >>>>>> ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/)
> >>>>>>
> >>>>>> For testing, you can pull from:
> >>>>>>
> >>>>>> git://github.com/fweisbec/linux-dynticks.git
> >>>>>> 	rcu/idle-fix-v2 
> >>>>>>
> >>>>>> Thanks.
> >>>>>
> >>>>> I have queued these on -rcu branch rcu/idle:
> >>>>>
> >>>>> 	git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
> >>>>>
> >>>>> This problem has been in place since 3.3, so it is hard to argue that
> >>>>> it is a regression for this merge window.  I have therefore queued it
> >>>>> for 3.7.
> >>>>
> >>>> I don't follow that; I would expect any serious bug fix (serious enough
> >>>> for a stable update) to be acceptable for 3.6 at this point.
> >>>
> >>> OK, if any of the arch maintainers wishes to submit the patch to 3.6,
> >>> they are free to do so -- just let me know and I will drop the patch from
> >>> my tree.
> >>>
> >>> That said, all this does is cause spurious warnings to be printed, so
> >>> not sure it really qualifies as serious.  But I am happy to leave that
> >>> decision with the individual arch maintainers -- it is their arch,
> >>> after all, so their decision.
> >>
> >> Couldn't that cause hung tasks due to long lasting synchronize_rcu() ?
> > 
> > In theory, definitely.  In practice, they haven't been running into it,
> > or they would be reporting hangs.
> 
> I am hereby reporting that RCU CPU stall warnings and hung tasks are
> being experienced on SMP kernels built for generic Alpha. This problem
> dates back quite a few kernel releases. The discussed patches appear to
> fix the problem.

OK, fair enough.

> A backport to the 3.2 kernel, of at least the Alpha patches, would be
> very much appreciated! :-)

Both Alpha patches should apply as-is back to 3.3, and should also fix
the problem.  Could you please check this on the versions of interest?

If you are seeing something like this on 3.2 or earlier, you have some
other problem that needs to be tracked down separately.

							Thanx, Paul

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To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
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Hi! 

On Sat, 25 Aug 2012, Paul E. McKenney wrote:
> Both Alpha patches should apply as-is back to 3.3, and should also fix
> the problem.  Could you please check this on the versions of interest?

I just now tried them on top of 3.3.8 from linux-stable.git.
While they apply cleanly, I get a compile failure:

  CC      arch/alpha/kernel/process.o
arch/alpha/kernel/process.c: In function 'cpu_idle':
arch/alpha/kernel/process.c:64: error: implicit declaration of function 'schedule_preempt_disabled'
make[1]: *** [arch/alpha/kernel/process.o] Error 1
make: *** [arch/alpha/kernel] Error 2

AFAICT, schedule_preempt_disabled() was only introduced in 3.4
and thus needs to be backported for 3.3.

Regards,
Tobias

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From: Frederic Weisbecker <fweisbec@gmail.com>

In the old times, the whole idle task was considered
as an RCU quiescent state. But as RCU became more and
more successful overtime, some RCU read side critical
section have been added even in the code of some
architectures idle tasks, for tracing for example.

So nowadays, rcu_idle_enter() and rcu_idle_exit() must
be called by the architecture to tell RCU about the part
in the idle loop that doesn't make use of rcu read side
critical sections, typically the part that puts the CPU
in low power mode.

This is necessary for RCU to find the quiescent states in
idle in order to complete grace periods.

Add this missing pair of calls in the parisc's idle loop.

Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Parisc <linux-parisc@vger.kernel.org>
Cc: 3.2.x.. <stable@vger.kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 arch/parisc/kernel/process.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d4b94b3..c54a4db 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -48,6 +48,7 @@
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
 #include <linux/uaccess.h>
+#include <linux/rcupdate.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -69,8 +70,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			barrier();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 		check_pgt_cache();
 	}
-- 
1.7.8

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This is a set of two bug fixes.  One is the ATOMIC problem which is now
causing a compile failure in certain situations.  The other is
mishandling of PER_LINUX32 which may also cause user visible effects.

The patches are here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git parisc-fixes

The short changelog is:

Jiri Kosina (1):
      fix personality flag check in copy_thread()

Mel Gorman (1):
      Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts

And the diffstat:

 arch/parisc/include/asm/atomic.h | 4 ++--
 arch/parisc/kernel/process.c     | 2 +-
 arch/parisc/kernel/sys_parisc.c  | 8 ++++----
 3 files changed, 7 insertions(+), 7 deletions(-)

Full diff below.

James

---

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 6c6defc..af9cf30 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -141,7 +141,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 
 #define atomic_sub_and_test(i,v)	(atomic_sub_return((i),(v)) == 0)
 
-#define ATOMIC_INIT(i)	((atomic_t) { (i) })
+#define ATOMIC_INIT(i)	{ (i) }
 
 #define smp_mb__before_atomic_dec()	smp_mb()
 #define smp_mb__after_atomic_dec()	smp_mb()
@@ -150,7 +150,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 
 #ifdef CONFIG_64BIT
 
-#define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
+#define ATOMIC64_INIT(i) { (i) }
 
 static __inline__ s64
 __atomic64_add_return(s64 i, atomic64_t *v)
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d4b94b3..2c05a92 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -309,7 +309,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 		cregs->ksp = (unsigned long)stack
 			+ (pregs->gr[21] & (THREAD_SIZE - 1));
 		cregs->gr[30] = usp;
-		if (p->personality == PER_HPUX) {
+		if (personality(p->personality) == PER_HPUX) {
 #ifdef CONFIG_HPUX
 			cregs->kpc = (unsigned long) &hpux_child_return;
 #else
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..7426e40 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -225,12 +225,12 @@ long parisc_personality(unsigned long personality)
 	long err;
 
 	if (personality(current->personality) == PER_LINUX32
-	    && personality == PER_LINUX)
-		personality = PER_LINUX32;
+	    && personality(personality) == PER_LINUX)
+		personality = (personality & ~PER_MASK) | PER_LINUX32;
 
 	err = sys_personality(personality);
-	if (err == PER_LINUX32)
-		err = PER_LINUX;
+	if (personality(err) == PER_LINUX32)
+		err = (err & ~PER_MASK) | PER_LINUX;
 
 	return err;
 }


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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc fixes for 3.6-rc3
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This is a set of two bug fixes.  One is the ATOMIC problem which is now
causing a compile failure in certain situations.  The other is
mishandling of PER_LINUX32 which may also cause user visible effects.

The patches are here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git parisc-fixes

The short changelog is:

Jiri Kosina (1):
      fix personality flag check in copy_thread()

Mel Gorman (1):
      Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts

And the diffstat:

 arch/parisc/include/asm/atomic.h | 4 ++--
 arch/parisc/kernel/process.c     | 2 +-
 arch/parisc/kernel/sys_parisc.c  | 8 ++++----
 3 files changed, 7 insertions(+), 7 deletions(-)

Full diff below.

James

---

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 6c6defc..af9cf30 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -141,7 +141,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 
 #define atomic_sub_and_test(i,v)	(atomic_sub_return((i),(v)) == 0)
 
-#define ATOMIC_INIT(i)	((atomic_t) { (i) })
+#define ATOMIC_INIT(i)	{ (i) }
 
 #define smp_mb__before_atomic_dec()	smp_mb()
 #define smp_mb__after_atomic_dec()	smp_mb()
@@ -150,7 +150,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 
 #ifdef CONFIG_64BIT
 
-#define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
+#define ATOMIC64_INIT(i) { (i) }
 
 static __inline__ s64
 __atomic64_add_return(s64 i, atomic64_t *v)
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d4b94b3..2c05a92 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -309,7 +309,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 		cregs->ksp = (unsigned long)stack
 			+ (pregs->gr[21] & (THREAD_SIZE - 1));
 		cregs->gr[30] = usp;
-		if (p->personality == PER_HPUX) {
+		if (personality(p->personality) == PER_HPUX) {
 #ifdef CONFIG_HPUX
 			cregs->kpc = (unsigned long) &hpux_child_return;
 #else
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..7426e40 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -225,12 +225,12 @@ long parisc_personality(unsigned long personality)
 	long err;
 
 	if (personality(current->personality) == PER_LINUX32
-	    && personality == PER_LINUX)
-		personality = PER_LINUX32;
+	    && personality(personality) == PER_LINUX)
+		personality = (personality & ~PER_MASK) | PER_LINUX32;
 
 	err = sys_personality(personality);
-	if (err == PER_LINUX32)
-		err = PER_LINUX;
+	if (personality(err) == PER_LINUX32)
+		err = (err & ~PER_MASK) | PER_LINUX;
 
 	return err;
 }


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From - Thu Nov 08 21:08:34 2018
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Subject: Re: [PATCH tip/core/rcu 23/26] parisc: Add missing RCU idle APIs on
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On Thu, Aug 30, 2012 at 02:05:40PM -0700, Paul E. McKenney wrote:
> From: Frederic Weisbecker <fweisbec@gmail.com>
> 
> In the old times, the whole idle task was considered
> as an RCU quiescent state. But as RCU became more and
> more successful overtime, some RCU read side critical
> section have been added even in the code of some
> architectures idle tasks, for tracing for example.
> 
> So nowadays, rcu_idle_enter() and rcu_idle_exit() must
> be called by the architecture to tell RCU about the part
> in the idle loop that doesn't make use of rcu read side
> critical sections, typically the part that puts the CPU
> in low power mode.
> 
> This is necessary for RCU to find the quiescent states in
> idle in order to complete grace periods.
> 
> Add this missing pair of calls in the parisc's idle loop.
> 
> Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
> Cc: James E.J. Bottomley <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Parisc <linux-parisc@vger.kernel.org>
> Cc: 3.2.x.. <stable@vger.kernel.org>
> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

Reviewed-by: Josh Triplett <josh@joshtriplett.org>

>  arch/parisc/kernel/process.c |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
> index d4b94b3..c54a4db 100644
> --- a/arch/parisc/kernel/process.c
> +++ b/arch/parisc/kernel/process.c
> @@ -48,6 +48,7 @@
>  #include <linux/unistd.h>
>  #include <linux/kallsyms.h>
>  #include <linux/uaccess.h>
> +#include <linux/rcupdate.h>
>  
>  #include <asm/io.h>
>  #include <asm/asm-offsets.h>
> @@ -69,8 +70,10 @@ void cpu_idle(void)
>  
>  	/* endless idle loop with no priority at all */
>  	while (1) {
> +		rcu_idle_enter();
>  		while (!need_resched())
>  			barrier();
> +		rcu_idle_exit();
>  		schedule_preempt_disabled();
>  		check_pgt_cache();
>  	}
> -- 
> 1.7.8
> 

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From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

pa_pdc_cell has been allocated in this function and so should be
freed before leaving from the error handling cases.

spatch with a semantic match is used to found this problem.
(http://coccinelle.lip6.fr/)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
---
 arch/parisc/kernel/inventory.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index 08324aa..3295ef4 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -186,12 +186,14 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 
 	if (status != PDC_OK) {
 		/* no more cell modules or error */
+		kfree(pa_pdc_cell);
 		return status;
 	}
 
 	temp = pa_pdc_cell->cba;
 	dev = alloc_pa_dev(PAT_GET_CBA(temp), &(pa_pdc_cell->mod_path));
 	if (!dev) {
+		kfree(pa_pdc_cell);
 		return PDC_OK;
 	}
 


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From - Thu Nov 08 21:08:34 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Thread stack allocation
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To: Carlos O'Donell <carlos@systemhalted.org>
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Hi Carlos,

This weekend I decided to try build openjdk-6-6b24-1.11.4.  After a  
bit of hacking
to configure, I researched a point where the build fails with a  
segmentation fault:

/bin/sh: line 6: 27423 Segmentation fault      (core dumped) /home/ 
dave/debian/openjdk-6/openjdk-6-6b24-1.11.4/build/bootstrap/jdk1.6.0/ 
bin/java -version
/home/dave/debian/openjdk-6/openjdk-6-6b24-1.11.4/build/bootstrap/ 
jdk1.6.0/bin/java cannot be found or is corrupted.

The program fails here:
Program received signal SIGSEGV, Segmentation fault.
0x40ae4868 in ClassLoader::load_zip_library ()
     at /home/dave/debian/openjdk-6/openjdk-6-6b24-1.11.4/build/ 
openjdk-ecj/hotspot/src/share/vm/classfile/classLoader.cpp:599
599	void ClassLoader::load_zip_library() {
(gdb) p/x $sp
$12 = 0x40755a40

(gdb) disass $pc-16,$pc+16
Dump of assembler code from 0x40ae4858 to 0x40ae4878:
    0x40ae4858 <ClassLoader::print_bootclasspath()+188>:	ldw,mb  
-80(sp),r7
    0x40ae485c <ClassLoader::print_bootclasspath()+192>:	nop
    0x40ae4860 <ClassLoader::load_zip_library()+0>:	stw rp,-14(sp)
    0x40ae4864 <ClassLoader::load_zip_library()+4>:	ldo 1480(sp),sp
=> 0x40ae4868 <ClassLoader::load_zip_library()+8>:	stw r4,-68(sp)
    0x40ae486c <ClassLoader::load_zip_library()+12>:	stw r19,-20(sp)
    0x40ae4870 <ClassLoader::load_zip_library()+16>:	stw r7,-74(sp)
    0x40ae4874 <ClassLoader::load_zip_library()+20>:	stw r6,-70(sp)
End of assembler dump.
(gdb) p/x $sp-0x68
$20 = 0x407559d8

(gdb) bt
#0  0x40ae4868 in ClassLoader::load_zip_library ()
     at /home/dave/debian/openjdk-6/openjdk-6-6b24-1.11.4/build/ 
openjdk-ecj/hotspot/src/share/vm/classfile/classLoader.cpp:599
#1  0x40ae6928 in ClassLoader::initialize ()
     at /home/dave/debian/openjdk-6/openjdk-6-6b24-1.11.4/build/ 
openjdk-ecj/hotspot/src/share/vm/classfile/classLoader.cpp:1019
#2  0x40bb4060 in init_globals ()
     at /home/dave/debian/openjdk-6/openjdk-6-6b24-1.11.4/build/ 
openjdk-ecj/hotspot/src/share/vm/runtime/init.cpp:94
#3  0x40d85044 in Threads::create_vm (args=<optimized out>,
     canTryAgain=0x407542c8)
     at /home/dave/debian/openjdk-6/openjdk-6-6b24-1.11.4/build/ 
openjdk-ecj/hotspot/src/share/vm/runtime/thread.cpp:3092

When the thread is initially entered, we have:
[New Thread 0x408d3480 (LWP 22180)]
[Switching to Thread 0x408d3480 (LWP 22180)]

Breakpoint 1, Threads::create_vm (args=<optimized out>,  
canTryAgain=0x407542c8)
     at /home/dave/debian/openjdk-6/openjdk-6-6b24-1.11.4/build/ 
openjdk-ecj/hotspot/src/share/vm/runtime/thread.cpp:3092
3092	  jint status = init_globals();
(gdb) p/x $sp
$26 = 0x407544c0

The thread is created in this bit of code:
int
ContinueInNewThread(int (JNICALL *continuation)(void *), jlong  
stack_size, void * args, int ret) {
     int rslt;
#ifdef __linux__
     pthread_t tid;
     pthread_attr_t attr;
     pthread_attr_init(&attr);
     pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);

     if (stack_size > 0) {
       pthread_attr_setstacksize(&attr, stack_size);
     }

     if (pthread_create(&tid, &attr, (void *(*)(void*))continuation,  
(void*)args) == 0) {
       void * tmp;
       pthread_join(tid, &tmp);
       rslt = (int)tmp;

in "openjdk-ecj/jdk/src/solaris/bin/java_md.c".

The stack_size value is 0x180000 (1572864).  I checked that  
pthread_attr_setstacksize
is called and doesn't fail.  However, pthread_create only allocates a  
stack with PTHREAD_STACK_MIN
(16384) bytes:
dave@mx3210:/proc/21515$ cat maps
00010000-00019000 r-xp 00000000 08:07  
385654                             /home/dave/debian/openjdk-6/ 
openjdk-6-6b24-1.11.4/build/openjdk.build-ecj/j2sdk-image/bin/java
00019000-0001a000 rwxp 00009000 08:07  
385654                             /home/dave/debian/openjdk-6/ 
openjdk-6-6b24-1.11.4/build/openjdk.build-ecj/j2sdk-image/bin/java
0001a000-0003b000 rwxp 00000000 00:00  
0                                  [heap]
40000000-40010000 rw-p 00000000 00:00 0
40010000-40011000 r--p 00000000 00:00 0
40011000-40014000 rw-p 00000000 00:00 0
40145000-4015b000 r-xp 00000000 08:05  
153472                             /usr/lib/hppa-linux-gnu/libz.so.1.2.6
4015b000-4015c000 rwxp 00016000 08:05  
153472                             /usr/lib/hppa-linux-gnu/libz.so.1.2.6
401de000-401ff000 r-xp 00000000 08:05  
112978                             /lib/hppa-linux-gnu/ld-2.13.so
401ff000-40203000 rwxp 00021000 08:05  
112978                             /lib/hppa-linux-gnu/ld-2.13.so
402ab000-402bb000 r-xp 00000000 08:05  
24345                              /lib/hppa-linux-gnu/libgcc_s.so.4
402bb000-402bc000 rwxp 00010000 08:05  
24345                              /lib/hppa-linux-gnu/libgcc_s.so.4
402c8000-402d5000 r-xp 00000000 08:07  
346778                             /home/dave/debian/openjdk-6/ 
openjdk-6-6b24-1.11.4/build/openjdk.build-ecj/j2sdk-image/jre/lib/ 
parisc/libverify.so
402d5000-402d6000 rwxp 0000d000 08:07  
346778                             /home/dave/debian/openjdk-6/ 
openjdk-6-6b24-1.11.4/build/openjdk.build-ecj/j2sdk-image/jre/lib/ 
parisc/libverify.so
40315000-4031d000 r-xp 00000000 08:05  
112976                             /lib/hppa-linux-gnu/ 
libnss_compat-2.13.so
4031d000-4031e000 rwxp 00008000 08:05  
112976                             /lib/hppa-linux-gnu/ 
libnss_compat-2.13.so
4034e000-40352000 r-xp 00000000 08:07  
384388                             /home/dave/debian/openjdk-6/ 
openjdk-6-6b24-1.11.4/build/openjdk.build-ecj/j2sdk-image/jre/lib/ 
parisc/jli/libjli.so
40352000-40353000 rwxp 00004000 08:07  
384388                             /home/dave/debian/openjdk-6/ 
openjdk-6-6b24-1.11.4/build/openjdk.build-ecj/j2sdk-image/jre/lib/ 
parisc/jli/libjli.so
4036e000-40385000 r-xp 00000000 08:05  
112967                             /lib/hppa-linux-gnu/libnsl-2.13.so
40385000-40386000 rwxp 00017000 08:05  
112967                             /lib/hppa-linux-gnu/libnsl-2.13.so
40386000-40389000 rwxp 00000000 00:00 0
403e8000-403f0000 r-xp 00000000 08:05  
113001                             /lib/hppa-linux-gnu/librt-2.13.so
403f0000-403f1000 rwxp 00008000 08:05  
113001                             /lib/hppa-linux-gnu/librt-2.13.so
403f5000-40412000 r-xp 00000000 08:05  
112947                             /lib/hppa-linux-gnu/ 
libpthread-2.13.so
40412000-40413000 rwxp 0001d000 08:05  
112947                             /lib/hppa-linux-gnu/ 
libpthread-2.13.so
40413000-40415000 rwxp 00000000 00:00 0
404d8000-40557000 r-xp 00000000 08:05  
112997                             /lib/hppa-linux-gnu/libm-2.13.so
40557000-4055a000 rwxp 0007f000 08:05  
112997                             /lib/hppa-linux-gnu/libm-2.13.so
405e5000-405e8000 r-xp 00000000 08:05  
112993                             /lib/hppa-linux-gnu/libdl-2.13.so
405e8000-405e9000 rwxp 00003000 08:05  
112993                             /lib/hppa-linux-gnu/libdl-2.13.so
405eb000-4074b000 r-xp 00000000 08:05  
112951                             /lib/hppa-linux-gnu/libc-2.13.so
4074b000-40751000 rwxp 00160000 08:05  
112951                             /lib/hppa-linux-gnu/libc-2.13.so
40751000-40755000 rwxp 00000000 00:00  
0                                  [stack:22180]
40755000-40758000 ---p 00000000 00:00 0
40758000-408d2000 rwxp 00000000 00:00 0
408d2000-408d3000 ---p 00000000 00:00 0
408d3000-408d4000 rwxp 00000000 00:00 0
4094b000-4097a000 r-xp 00000000 08:07  
346767                             /home/dave/debian/openjdk-6/ 
openjdk-6-6b24-1.11.4/build/openjdk.build-ecj/j2sdk-image/jre/lib/ 
parisc/libjava.so
4097a000-4097d000 rwxp 0002f000 08:07  
346767                             /home/dave/debian/openjdk-6/ 
openjdk-6-6b24-1.11.4/build/openjdk.build-ecj/j2sdk-image/jre/lib/ 
parisc/libjava.so
409f2000-40e4b000 r-xp 00000000 08:07  
376216                             /home/dave/debian/openjdk-6/ 
openjdk-6-6b24-1.11.4/build/openjdk.build-ecj/j2sdk-image/jre/lib/ 
parisc/server/libjvm.so
40e4b000-40e78000 rwxp 00459000 08:07  
376216                             /home/dave/debian/openjdk-6/ 
openjdk-6-6b24-1.11.4/build/openjdk.build-ecj/j2sdk-image/jre/lib/ 
parisc/server/libjvm.so
40e78000-40e85000 rwxp 00000000 00:00 0
40f68000-40f73000 r-xp 00000000 08:05  
24357                              /lib/hppa-linux-gnu/ 
libnss_nis-2.13.so
40f73000-40f74000 rwxp 0000b000 08:05  
24357                              /lib/hppa-linux-gnu/ 
libnss_nis-2.13.so
41005000-4100d000 rw-s 00000000 08:05  
217840                             /tmp/hsperfdata_dave/21515
41268000-41351000 r-xp 00000000 08:05  
306529                             /usr/lib/hppa-linux-gnu/libstdc+ 
+.so.6.0.17
41351000-41358000 rwxp 000e9000 08:05  
306529                             /usr/lib/hppa-linux-gnu/libstdc+ 
+.so.6.0.17
41358000-4135f000 rwxp 00000000 00:00 0
41362000-4136f000 r-xp 00000000 08:05  
112987                             /lib/hppa-linux-gnu/ 
libnss_files-2.13.so
4136f000-41370000 rwxp 0000d000 08:05  
112987                             /lib/hppa-linux-gnu/ 
libnss_files-2.13.so
fbf00000-fbf22000 rwxp 00000000 00:00  
0                                  [stack]

This is the cause of the segv.

Thoughts?

Dave
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John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:08:34 2018
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Subject: Re: Thread stack allocation
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On 9-Sep-12, at 1:52 PM, John David Anglin wrote:

> 40751000-40755000 rwxp 00000000 00:00  
> 0                                  [stack:22180]


It seems to me this must be a kernel bug:
Breakpoint 13, __mmap (addr=0x0, len=1572864, prot=7, flags=18, fd=-1,
     offset=0) at ../ports/sysdeps/unix/sysv/linux/hppa/mmap.c:36
36	{
(gdb) disass
Dump of assembler code for function __mmap:
=> 0x406cd270 <+0>:	stw rp,-14(sp)
    0x406cd274 <+4>:	stw,ma r4,40(sp)
    0x406cd278 <+8>:	ldw -78(sp),r21
    0x406cd27c <+12>:	stw r19,-20(sp)
    0x406cd280 <+16>:	ldw -74(sp),r22
    0x406cd284 <+20>:	copy r19,r4
    0x406cd288 <+24>:	be,l 100(sr2,r0),sr0,r31
    0x406cd28c <+28>:	ldi 5a,r20

The return from this syscall is the above region.

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On 9-Sep-12, at 4:23 PM, John David Anglin wrote:

> It seems to me this must be a kernel bug:

Nope, it's a problem with guard page allocation in openjdk.
It assumes stack grows down.

--
John David Anglin	dave.anglin@bell.net



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On 9/9/2012 6:24 PM, John David Anglin wrote:
> On 9-Sep-12, at 4:23 PM, John David Anglin wrote:
> 
>> It seems to me this must be a kernel bug:
> 
> Nope, it's a problem with guard page allocation in openjdk.
> It assumes stack grows down.

Yes, that's wrong :-)

If you allocate your own stacks then glibc can't setup guard
pages for you since it violates some POSIX constraints.

For avoidance of doubt you *can* get a thread with PTHREAD_STACK_MIN
as the stack size if:

(a) RLIMIT_STACK is a useful value e.g. != infinity

... but ....

(b) RLIMIT_STACK < PTHREAD_STACK_MIN

.... then ....

We allocate PTHREAD_STACK_MIN by default which might not be enough
space for what you need.

I'm actually working heavily on a BZ for glibc that would split up
the accounting of stack space and other incidentals to avoid grouping
them. For example if you had a lot of TLS variables they could actually
consume your stack and that's wrong.

http://sourceware.org/bugzilla/show_bug.cgi?id=11787

Cheers,
Carlos.

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From - Thu Nov 08 21:08:34 2018
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From: John David Anglin <dave.anglin@bell.net>
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On 9/10/2012 11:13 AM, Carlos O'Donell wrote:
> On 9/9/2012 6:24 PM, John David Anglin wrote:
>> >On 9-Sep-12, at 4:23 PM, John David Anglin wrote:
>> >
>>> >>It seems to me this must be a kernel bug:
>> >
>> >Nope, it's a problem with guard page allocation in openjdk.
>> >It assumes stack grows down.
> Yes, that's wrong:-)
>
> If you allocate your own stacks then glibc can't setup guard
> pages for you since it violates some POSIX constraints.
I need to study the situation in more detail but what I found is openjdk
initially allocates a fairly large stack with pthread_attr_setstacksize,
then it mucks with this region setting up guard pages, etc.  This goes
seriously wrong on parisc and the initial thread is only left with a stack
which is 4096 bytes.

I disabled guard pages and the build went a lot further, but died again
due to what appears to be another stack related issue.  If this package
is to work again, it's going to need significant porting to fix the stack
handling.  I think there was a parisc patch at one time but I think it
has been removed...

If I understand correctly, we have on parisc a guard region followed
by TLS stuff at the top of stack.  I assume that the stack size allocated
with pthread_attr_setstacksize is fully available to the user.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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On 9/10/2012 11:45 AM, John David Anglin wrote:
> On 9/10/2012 11:13 AM, Carlos O'Donell wrote:
>> On 9/9/2012 6:24 PM, John David Anglin wrote:
>>> >On 9-Sep-12, at 4:23 PM, John David Anglin wrote:
>>> >
>>>> >>It seems to me this must be a kernel bug:
>>> >
>>> >Nope, it's a problem with guard page allocation in openjdk.
>>> >It assumes stack grows down.
>> Yes, that's wrong:-)
>>
>> If you allocate your own stacks then glibc can't setup guard
>> pages for you since it violates some POSIX constraints.
> I need to study the situation in more detail but what I found is openjdk
> initially allocates a fairly large stack with pthread_attr_setstacksize,
> then it mucks with this region setting up guard pages, etc.  This goes
> seriously wrong on parisc and the initial thread is only left with a stack
> which is 4096 bytes.
> 
> I disabled guard pages and the build went a lot further, but died again
> due to what appears to be another stack related issue.  If this package
> is to work again, it's going to need significant porting to fix the stack
> handling.  I think there was a parisc patch at one time but I think it
> has been removed...
> 
> If I understand correctly, we have on parisc a guard region followed
> by TLS stuff at the top of stack.  I assume that the stack size allocated
> with pthread_attr_setstacksize is fully available to the user.

No. This is what the glibc bug is about and it's what I'm fixing right now.

No matter what you do glibc allocates static tls, guard pages, and several
other things *from* the stack size you set.

This is wrong for many reasons, and we're fixing stack size accounting
upstream. Until the fix is in, which would be ~2.17 timeframe this isn't
going to get better.

If you have a small-ish stack, with lots of static tls variables, then you
loose and need to manually allocate your own stack of the appropriate size
to hold everything you need (not that there is any API to figure that out)
and do it all manually.

After the fix goes in the size you request via pthread_attr_setstacksize
will be the real size you have access to use and proper stack analysis
tools will be useful again :-)

Cheers,
Carlos.

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On Sun, Aug 26, 2012 at 11:21:37AM +0200, Tobias Klausmann wrote:
> Hi! 
> 
> On Sat, 25 Aug 2012, Paul E. McKenney wrote:
> > Both Alpha patches should apply as-is back to 3.3, and should also fix
> > the problem.  Could you please check this on the versions of interest?
> 
> I just now tried them on top of 3.3.8 from linux-stable.git.
> While they apply cleanly, I get a compile failure:
> 
>   CC      arch/alpha/kernel/process.o
> arch/alpha/kernel/process.c: In function 'cpu_idle':
> arch/alpha/kernel/process.c:64: error: implicit declaration of function 'schedule_preempt_disabled'
> make[1]: *** [arch/alpha/kernel/process.o] Error 1
> make: *** [arch/alpha/kernel] Error 2
> 
> AFAICT, schedule_preempt_disabled() was only introduced in 3.4
> and thus needs to be backported for 3.3.

Please try with this instead:

	preempt_enable_no_resched();
	schedule();
	preempt_disable();

Thanks.

> 
> Regards,
> Tobias
> 
> -- 
> panic("%s: CORRUPTED BTREE OR SOMETHING", __FUNCTION__);
>         linux-2.6.6/fs/xfs/xfs_bmap.c
--
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From - Thu Nov 08 21:08:35 2018
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From: Frederic Weisbecker <fweisbec@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.ports.parisc,gmane.linux.ports.alpha
Subject: Re: [PATCH 00/11] rcu: Add missing RCU idle APIs on idle loop v2
Date: Mon, 10 Sep 2012 23:56:08 +0200
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Cc: paulmck@linux.vnet.ibm.com, LKML <linux-kernel@vger.kernel.org>,
	Chris Zankel <chris@zankel.net>,
	"3.2.x.." <stable@vger.kernel.org>,
	Chen Liqin <liqin.chen@sunplusct.com>,
	Lennox Wu <lennox.wu@gmail.com>,
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	Helge Deller <deller@gmx.de>,
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	Koichi Yasutake <yasutake.koichi@jp.panasonic.com>,
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	m68k <linux-m68k@lists.linux-m68k.org>,
	Hirokazu Takata <takata@linux-m32r.org>,
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	Cris <linux-cris-kernel@axis.com>,
	Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	alpha <linux-alpha@vger.kernel.org>,
	Michael Cree <mcree@orcon.net.
To: Ben Hutchings <ben@decadent.org.uk>
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On Sat, Aug 25, 2012 at 02:19:14AM +0100, Ben Hutchings wrote:
> On Fri, 2012-08-24 at 14:26 -0700, Paul E. McKenney wrote:
> > On Thu, Aug 23, 2012 at 04:58:24PM +0200, Frederic Weisbecker wrote:
> > > Hi,
> > > 
> > > Changes since v1:
> > > 
> > > - Fixed preempt handling in alpha idle loop
> > > - added ack from Geert
> > > - fixed stable email address, sorry :-/
> > > 
> > > This time I built tested everywhere but: h8300 (compiler internal error),
> > > and mn10300, parisc, score (cross compilers not available in
> > > ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/)
> > > 
> > > For testing, you can pull from:
> > > 
> > > git://github.com/fweisbec/linux-dynticks.git
> > > 	rcu/idle-fix-v2 
> > > 
> > > Thanks.
> > 
> > I have queued these on -rcu branch rcu/idle:
> > 
> > 	git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
> > 
> > This problem has been in place since 3.3, so it is hard to argue that
> > it is a regression for this merge window.  I have therefore queued it
> > for 3.7.
> 
> I don't follow that; I would expect any serious bug fix (serious enough
> for a stable update) to be acceptable for 3.6 at this point.
> 
> If the regression occurred in 3.3, then the cc lines should be something
> like:
> 
>     Cc: <stable@vger.kernel.org> # 3.3+
> 
> and not the current:
> 
>     Cc: 3.2.x.. <stable@vger.kernel.org>
> 
> (Note, version annotations should be on the right of the address, not in
> the 'real name' position on the left.)

Ah indeed.

Hmm, I don't understand why we took that convention while we can reuse the name
that precedes the email to put that information.

Anyway, should I resend the patchset with this thing fixed?

Thanks.

From - Thu Nov 08 21:08:35 2018
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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.ports.parisc,gmane.linux.ports.alpha
Subject: Re: [PATCH 00/11] rcu: Add missing RCU idle APIs on idle loop v2
Date: Mon, 10 Sep 2012 15:58:45 -0700
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Cc: Ben Hutchings <ben@decadent.org.uk>,
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	"3.2.x.." <stable@vger.kernel.org>,
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	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
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	alpha <linux-alpha@vger.kernel.org>,
	Michael Cree <mcree@
To: Frederic Weisbecker <fweisbec@gmail.com>
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On Mon, Sep 10, 2012 at 11:56:08PM +0200, Frederic Weisbecker wrote:
> On Sat, Aug 25, 2012 at 02:19:14AM +0100, Ben Hutchings wrote:
> > On Fri, 2012-08-24 at 14:26 -0700, Paul E. McKenney wrote:
> > > On Thu, Aug 23, 2012 at 04:58:24PM +0200, Frederic Weisbecker wrote:
> > > > Hi,
> > > > 
> > > > Changes since v1:
> > > > 
> > > > - Fixed preempt handling in alpha idle loop
> > > > - added ack from Geert
> > > > - fixed stable email address, sorry :-/
> > > > 
> > > > This time I built tested everywhere but: h8300 (compiler internal error),
> > > > and mn10300, parisc, score (cross compilers not available in
> > > > ftp://ftp.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/)
> > > > 
> > > > For testing, you can pull from:
> > > > 
> > > > git://github.com/fweisbec/linux-dynticks.git
> > > > 	rcu/idle-fix-v2 
> > > > 
> > > > Thanks.
> > > 
> > > I have queued these on -rcu branch rcu/idle:
> > > 
> > > 	git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
> > > 
> > > This problem has been in place since 3.3, so it is hard to argue that
> > > it is a regression for this merge window.  I have therefore queued it
> > > for 3.7.
> > 
> > I don't follow that; I would expect any serious bug fix (serious enough
> > for a stable update) to be acceptable for 3.6 at this point.
> > 
> > If the regression occurred in 3.3, then the cc lines should be something
> > like:
> > 
> >     Cc: <stable@vger.kernel.org> # 3.3+
> > 
> > and not the current:
> > 
> >     Cc: 3.2.x.. <stable@vger.kernel.org>
> > 
> > (Note, version annotations should be on the right of the address, not in
> > the 'real name' position on the left.)
> 
> Ah indeed.
> 
> Hmm, I don't understand why we took that convention while we can reuse the name
> that precedes the email to put that information.
> 
> Anyway, should I resend the patchset with this thing fixed?

Please feel free to do so.  ;-)

							Thanx, Paul


From - Thu Nov 08 21:08:35 2018
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Cc: Ben Hutchings <ben@decadent.org.uk>,
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	m68k <linux-m68k@lists.linux-m68k.org>,
	Hirokazu Takata <takata@linux-m32r.org>,
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	Mikael Starvik <starvik@axis.com>,
	Jesper Nilsson <jesper.nilsson@axis.com>,
	Cris <linux-cris-kernel@axis.com>,
	Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	alpha <linux-alpha@vger.kernel.org>,
	Michael Cree <mcree@
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
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On Mon, Sep 10, 2012 at 03:58:45PM -0700, Paul E. McKenney wrote:
> > Anyway, should I resend the patchset with this thing fixed?
> 
> Please feel free to do so.  ;-)
> 
> 							Thanx, Paul
> 

So here it is.

On the menu for the updated branch:

- fixed stable tags (use # 3.3+)
- not sure what to do with "alpha: Fix preemption handling in idle loop",
  tag as stable or not?
- added tested-by Michael Cree <mcree@orcon.net.nz> for alpha patches
- propagate rename to rcu_user_*_after_irq() in the commit changelog
- remove trailing #endif in "rcu: New rcu_user_enter_after_irq() and rcu_user_exit_after_irq() APIs"
  and early rcu_user_hooks_switch() header as well (reported by WU Fenguang).
- add rcu_user_hooks_switch() header in "rcu: Switch task's syscall hooks on context switch"

I believe this all should also fix what WU Fenguang reported:

	[rcu:rcu:next 54/82] include/linux/rcupdate.h:202:20: error: redefinition of 'rcu_user_exit'
	[rcu:rcu:next 54/82] include/linux/rcupdate.h:401:19: error: redefinition of 'rcu_read_lock_bh_held'
	[rcu:rcu:idle 2/27] include/linux/rcupdate.h:969:2: error: #endif without #if

I'm not reposting the patches because few things have actually changed, except a few neats and some stuff
that have been moved from a patch to another to unbreak bisection. But the end result is about the same.
You can check the difference with a git diff between our branches.

If you want to, though, I can repost the patches.

This is pullable from:

git://github.com/fweisbec/linux-dynticks.git
	rcu/idle-for-v3.7

Thanks.

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To: Frederic Weisbecker <fweisbec@gmail.com>,
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Hi Frederic, Paul,

On Thu, Aug 23, 2012 at 11:50 PM, Frederic Weisbecker
<fweisbec@gmail.com> wrote:
> On Thu, Aug 23, 2012 at 10:23:22PM +0200, Geert Uytterhoeven wrote:
>> On Thu, Aug 23, 2012 at 1:02 PM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
>> > On Wed, Aug 22, 2012 at 07:18:04PM +0200, Geert Uytterhoeven wrote:
>> >> On Wed, Aug 22, 2012 at 6:23 PM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
>> >> > So this fixes some potential RCU stalls in a bunch of architectures.
>> >> > When rcu_idle_enter()/rcu_idle_exit() became a requirement, we forgot
>> >> > to handle the architectures that don't support CONFIG_NO_HZ.
>> >> >
>> >> > I guess the set should be dispatched into arch maintainer trees.
>> >>
>> >> I can take the m68k version, but are you sure you want it this way?
>> >> Each of them must be in mainline before they can enter stable.
>> >
>> > Yeah, I was thinking the right route is for these patches to be
>> > carried by arch maintainer who then push to Linus and then this goes
>> > to stable.
>> >
>> > Is that ok for you?
>> >
>> > Otherwise I can carry the patches myself. In a tree of my own, or
>> > Paul's or mmotm. As long as I have your ack.
>>
>> I applied your patch to the m68k for-3.6/for-linus branch.
>> I'll ask Linus to pull later in the rc cycle (right now I don't have
>> anything else
>> queued for 3.6).
>> Still, I think it's better to just collect acks and send it to Linus
>> in one shot,
>> so it can go into stable in one shot too.
>
> Sure I can do that if you prefer.

What's the conclusion on this one? I saw it entered tip.

I still have it (as the only commit) on my for-3.6 branch, but I don't
think m68k
is important enough to be the only architecture to have this fix in 3.6 ;-)

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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On Mon, Sep 17, 2012 at 10:31:24PM +0200, Geert Uytterhoeven wrote:
> Hi Frederic, Paul,
> 
> On Thu, Aug 23, 2012 at 11:50 PM, Frederic Weisbecker
> <fweisbec@gmail.com> wrote:
> > On Thu, Aug 23, 2012 at 10:23:22PM +0200, Geert Uytterhoeven wrote:
> >> On Thu, Aug 23, 2012 at 1:02 PM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
> >> > On Wed, Aug 22, 2012 at 07:18:04PM +0200, Geert Uytterhoeven wrote:
> >> >> On Wed, Aug 22, 2012 at 6:23 PM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
> >> >> > So this fixes some potential RCU stalls in a bunch of architectures.
> >> >> > When rcu_idle_enter()/rcu_idle_exit() became a requirement, we forgot
> >> >> > to handle the architectures that don't support CONFIG_NO_HZ.
> >> >> >
> >> >> > I guess the set should be dispatched into arch maintainer trees.
> >> >>
> >> >> I can take the m68k version, but are you sure you want it this way?
> >> >> Each of them must be in mainline before they can enter stable.
> >> >
> >> > Yeah, I was thinking the right route is for these patches to be
> >> > carried by arch maintainer who then push to Linus and then this goes
> >> > to stable.
> >> >
> >> > Is that ok for you?
> >> >
> >> > Otherwise I can carry the patches myself. In a tree of my own, or
> >> > Paul's or mmotm. As long as I have your ack.
> >>
> >> I applied your patch to the m68k for-3.6/for-linus branch.
> >> I'll ask Linus to pull later in the rc cycle (right now I don't have
> >> anything else
> >> queued for 3.6).
> >> Still, I think it's better to just collect acks and send it to Linus
> >> in one shot,
> >> so it can go into stable in one shot too.
> >
> > Sure I can do that if you prefer.
> 
> What's the conclusion on this one? I saw it entered tip.

I don't see it at tip/master, but perhaps I am looking at the wrong branch.

> I still have it (as the only commit) on my for-3.6 branch, but I don't
> think m68k
> is important enough to be the only architecture to have this fix in 3.6 ;-)

I got only two acks in addition to yours, plus one Tested-by.  So, no,
there does not appear to be a large groundswell of support for pushing
this into 3.6.  If it doesn't go in by some other path, I will be pushing
it into 3.7.

							Thanx, Paul


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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: I have 12GB of RAM but I can only use 1GB?
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Team,

I recently setup my rp3440 in order to get back into more active
development for hppa.

I noticed that in 3.6.0-rc6 I get the following message:
~~~
This Machine has more memory ranges than we support!
Some memory will not be used!
parisc_cache_init: Only equivalent aliasing supported!
Total Memory: 1024 MB
~~~

Which sucks since I have 12GB of RAM in this box and I want to use all of it.

If nobody has run into this problem then I'll just go digging, but I
thought I'd ask here first.

Cheers,
Carlos.
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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You wrote:
> Team,
> 
> I recently setup my rp3440 in order to get back into more active
> development for hppa.
> 
> I noticed that in 3.6.0-rc6 I get the following message:
> ~~~
> This Machine has more memory ranges than we support!
> Some memory will not be used!
> parisc_cache_init: Only equivalent aliasing supported!
> Total Memory: 1024 MB
> ~~~
> 
> Which sucks since I have 12GB of RAM in this box and I want to use all of
> it.
> 
> If nobody has run into this problem then I'll just go digging, but I
> thought I'd ask here first.

IIRC you need CONFIG_DISCONTIGMEM.

Eike
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: I have 12GB of RAM but I can only use 1GB?
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On 19-Sep-12, at 2:06 AM, Rolf Eike Beer wrote:

> IIRC you need CONFIG_DISCONTIGMEM.

Enclosed is my latest kernel patch against 3.5.4.

One of things it addresses is an issue with CONFIG_DISCONTIGMEM  
introduced in 3.4.

Another new thing is a hack which tries to paper over a softirq  
problem.  For some reason,
we sometimes run off the end of the vector pending list causing a  
panic.  This is probably related
to the restart issues discussed by Al Viro as things were worse with  
Al's suggested change.

Dave
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diff --git a/arch/parisc/hpux/gate.S b/arch/parisc/hpux/gate.S
index 38a1c1b..8e52a3b 100644
--- a/arch/parisc/hpux/gate.S
+++ b/arch/parisc/hpux/gate.S
@@ -72,6 +72,7 @@ ENTRY(hpux_gateway_page)
 	STREG	%r27, TASK_PT_GR27(%r1)		/* user dp */
 	STREG   %r28, TASK_PT_GR28(%r1)         /* return value 0 */
 	STREG   %r28, TASK_PT_ORIG_R28(%r1)     /* return value 0 (saved for signals) */
+	STREG	%r0, TASK_PT_ORIG_R28(%r1)	/* don't prohibit restarts */
 	STREG   %r29, TASK_PT_GR29(%r1)         /* 8th argument */
 	STREG	%r31, TASK_PT_GR31(%r1)		/* preserve syscall return ptr */
 	
diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 9f21ab0..79f694f 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -115,7 +115,9 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 {
 	if (PageAnon(page)) {
 		flush_tlb_page(vma, vmaddr);
+		preempt_disable();
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
+		preempt_enable();
 	}
 }
 
diff --git a/arch/parisc/include/asm/compat_rt_sigframe.h b/arch/parisc/include/asm/compat_rt_sigframe.h
deleted file mode 100644
index 81bec28..0000000
--- a/arch/parisc/include/asm/compat_rt_sigframe.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#include<linux/compat.h>
-#include<linux/compat_siginfo.h>
-#include<asm/compat_ucontext.h>
-
-#ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-#define _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-
-/* In a deft move of uber-hackery, we decide to carry the top half of all
- * 64-bit registers in a non-portable, non-ABI, hidden structure.
- * Userspace can read the hidden structure if it *wants* but is never
- * guaranteed to be in the same place. Infact the uc_sigmask from the 
- * ucontext_t structure may push the hidden register file downards
- */
-struct compat_regfile {
-	/* Upper half of all the 64-bit registers that were truncated
-	   on a copy to a 32-bit userspace */
-	compat_int_t rf_gr[32];
-	compat_int_t rf_iasq[2];
-	compat_int_t rf_iaoq[2];
-	compat_int_t rf_sar;
-};
-
-#define COMPAT_SIGRETURN_TRAMP 4
-#define COMPAT_SIGRESTARTBLOCK_TRAMP 5 
-#define COMPAT_TRAMP_SIZE (COMPAT_SIGRETURN_TRAMP + COMPAT_SIGRESTARTBLOCK_TRAMP)
-
-struct compat_rt_sigframe {
-	/* XXX: Must match trampoline size in arch/parisc/kernel/signal.c 
-	        Secondary to that it must protect the ERESTART_RESTARTBLOCK
-		trampoline we left on the stack (we were bad and didn't 
-		change sp so we could run really fast.) */
-	compat_uint_t tramp[COMPAT_TRAMP_SIZE];
-	compat_siginfo_t info;
-	struct compat_ucontext uc;
-	/* Hidden location of truncated registers, *must* be last. */
-	struct compat_regfile regs; 
-};
-
-/*
- * The 32-bit ABI wants at least 48 bytes for a function call frame:
- * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of
- * which Linux/parisc uses is sp-20 for the saved return pointer...)
- * Then, the stack pointer must be rounded to a cache line (64 bytes).
- */
-#define SIGFRAME32		64
-#define FUNCTIONCALLFRAME32	48
-#define PARISC_RT_SIGFRAME_SIZE32					\
-	(((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
-
-#endif
diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index e67eb9c..31835b9 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -1,9 +1,10 @@
 #ifndef _PARISC_MMZONE_H
 #define _PARISC_MMZONE_H
 
+#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
+
 #ifdef CONFIG_DISCONTIGMEM
 
-#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
 extern int npmem_ranges;
 
 struct node_map_data {
@@ -60,7 +61,5 @@ static inline int pfn_valid(int pfn)
 	return 0;
 }
 
-#else /* !CONFIG_DISCONTIGMEM */
-#define MAX_PHYSMEM_RANGES 	1 
 #endif
 #endif /* _PARISC_MMZONE_H */
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index 4e0e7db..d9812d8 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -21,15 +21,27 @@
 #include <asm/types.h>
 #include <asm/cache.h>
 
-#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define clear_page(page)	clear_page_asm((void *)(page))
+#define copy_page(to,from)	copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
+void clear_page_asm(void *page);
+void copy_page_asm(void *to, void *from);
+void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+
+// #define CONFIG_PARISC_TMPALIAS
+
+#ifdef CONFIG_PARISC_TMPALIAS
+void clear_user_highpage(struct page *page, unsigned long vaddr);
+#define clear_user_highpage clear_user_highpage
+struct vm_area_struct;
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma);
+#define __HAVE_ARCH_COPY_USER_HIGHPAGE
+#endif
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index ee99f23..563724d 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -12,11 +12,10 @@
 
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
+#include <linux/mm_types.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
-struct vm_area_struct;
-
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -40,7 +39,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm,addr,ptep, pteval)                        \
+        do{                                                     \
+                set_pte(ptep,pteval);                           \
+                purge_tlb_entries(mm,addr);                     \
+        } while(0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -462,10 +468,13 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #ifdef CONFIG_SMP
 	unsigned long new, old;
 
+	/* ??? This might be racy because the page table updates in
+	   entry.S don't use the same lock.  */
 	do {
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/include/asm/real.h b/arch/parisc/include/asm/real.h
deleted file mode 100644
index 82acb25..0000000
--- a/arch/parisc/include/asm/real.h
+++ /dev/null
@@ -1,5 +0,0 @@
-#ifndef _PARISC_REAL_H
-#define _PARISC_REAL_H
-
-
-#endif
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index dcd5510..5df1597 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -141,6 +141,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -230,6 +231,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 9d18189..795d392 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -267,9 +267,11 @@ static inline void
 __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 		   unsigned long physaddr)
 {
+	preempt_disable();
 	flush_dcache_page_asm(physaddr, vmaddr);
 	if (vma->vm_flags & VM_EXEC)
 		flush_icache_page_asm(physaddr, vmaddr);
+	preempt_enable();
 }
 
 void flush_dcache_page(struct page *page)
@@ -315,7 +317,7 @@ void flush_dcache_page(struct page *page)
 		flush_tlb_page(mpnt, addr);
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
+			if (old_addr && parisc_requires_coherency())
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
 			old_addr = addr;
 		}
@@ -330,17 +332,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -374,20 +365,9 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
 
-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
-
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
-{
-	unsigned long flags;
-
-	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start(flags);
-	pdtlb_kernel(page);
-	purge_tlb_end(flags);
-	clear_user_page_asm(page, vaddr);
-}
-EXPORT_SYMBOL(clear_user_page);
+extern void purge_kernel_dcache_page_asm(unsigned long);
+extern void clear_user_page_asm(void *, unsigned long);
+extern void copy_user_page_asm(void *, void *, unsigned long);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
@@ -400,11 +380,26 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
+void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
+{
+	clear_page_asm(vto);
+	if (!parisc_requires_coherency())
+		flush_kernel_dcache_page_asm(vto);
+}
+EXPORT_SYMBOL(clear_user_page);
+
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-		    struct page *pg)
+	struct page *pg)
 {
-	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
+	/* Copy using kernel mapping.  No coherency is needed
+	   (all in kmap/kunmap) on machines that don't support
+	   non-equivalent aliasing.  However, the `from' page
+	   needs to be flushed before it can be accessed through
+	   the kernel mapping. */
+	preempt_disable();
+	flush_dcache_page_asm(__pa(vfrom), vaddr);
+	preempt_enable();
+	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
 		flush_kernel_dcache_page_asm(vto);
 }
@@ -420,6 +415,25 @@ void kunmap_parisc(void *addr)
 EXPORT_SYMBOL(kunmap_parisc);
 #endif
 
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags, sid;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	/* Disable preemption while we play with %sr1.  */
+	preempt_disable();
+	sid = mfsp(1);
+	mtsp(mm->context,1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+	mtsp(sid,1);
+	preempt_enable();
+}
+
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {
@@ -459,8 +473,65 @@ void flush_cache_all(void)
 	on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
 }
 
+static inline unsigned long mm_total_size(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long usize = 0;
+
+	for (vma = mm->mmap; vma; vma = vma->vm_next)
+		usize += vma->vm_end - vma->vm_start;
+	return usize;
+}
+
+static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
+{
+	pte_t *ptep = NULL;
+
+        if (!pgd_none(*pgd)) {
+                pud_t *pud = pud_offset(pgd, addr);
+                if (!pud_none(*pud)) {
+                        pmd_t *pmd = pmd_offset(pud, addr);
+                        if (!pmd_none(*pmd)) {
+                                ptep = pte_offset_map(pmd, addr);
+                        }
+                }
+        }
+	return ptep;
+}
+
 void flush_cache_mm(struct mm_struct *mm)
 {
+	/* Flushing the whole cache on each cpu takes forever on
+	   rp3440, etc.  So, avoid it if the mm isn't too big.
+	   Note: This approach is faster than a range flush when the
+	   context is current, and it works even when non current.  */
+	if (mm_total_size(mm) < parisc_cache_flush_threshold) {
+		struct vm_area_struct *vma;
+
+		if (mm->context == mfsp(3)) {
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				flush_user_dcache_range_asm(vma->vm_start, vma->vm_end);
+				if(vma->vm_flags & VM_EXEC)
+					flush_user_icache_range_asm(vma->vm_start, vma->vm_end);
+			}
+		} else {
+			pgd_t *pgd = mm->pgd;
+
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				unsigned long addr;
+
+				for (addr = vma->vm_start; addr < vma->vm_end; addr += PAGE_SIZE) {
+					pte_t *ptep = get_ptep(pgd, addr);
+					if (ptep != NULL) {
+						pte_t pte = *ptep;
+						__flush_cache_page(vma, addr, page_to_phys(pte_page(pte)));
+					}
+				}
+			}
+		}
+		return;
+	}
+
 #ifdef CONFIG_SMP
 	flush_cache_all();
 #else
@@ -486,20 +557,34 @@ flush_user_icache_range(unsigned long start, unsigned long end)
 		flush_instruction_cache();
 }
 
-
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	int sr3;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
+	if ((end - start) < parisc_cache_flush_threshold) {
+		if (vma->vm_mm->context == mfsp(3)) {
+			flush_user_dcache_range_asm(start,end);
+			if(vma->vm_flags & VM_EXEC)
+				flush_user_icache_range_asm(start,end);
+		} else {
+			unsigned long addr;
+			pgd_t *pgd = vma->vm_mm->pgd;
+
+			for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+				pte_t *ptep = get_ptep(pgd, addr);
+				if (ptep != NULL) {
+					pte_t pte = *ptep;
+					flush_cache_page(vma, addr, pte_pfn(pte));
+				}
+			}
+		}
 	} else {
+#ifdef CONFIG_SMP
 		flush_cache_all();
+#else
+		flush_cache_all_local();
+#endif
 	}
 }
 
@@ -512,3 +597,67 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
+
+#ifdef CONFIG_PARISC_TMPALIAS
+
+void clear_user_highpage(struct page *page, unsigned long vaddr)
+{
+	void *vto;
+	unsigned long flags;
+
+	/* Clear using TMPALIAS region.  The page doesn't need to
+	   be flushed but the kernel mapping needs to be purged.  */
+
+	vto = kmap_atomic(page, KM_USER0);
+
+	/* The PA-RISC 2.0 Architecture book states on page F-6:
+	   "Before a write-capable translation is enabled, *all*
+	   non-equivalently-aliased translations must be removed
+	   from the page table and purged from the TLB.  (Note
+	   that the caches are not required to be flushed at this
+	   time.)  Before any non-equivalent aliased translation
+	   is re-enabled, the virtual address range for the writeable
+	   page (the entire page) must be flushed from the cache,
+	   and the write-capable translation removed from the page
+	   table and purged from the TLB."  */
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	purge_tlb_end(flags);
+	preempt_disable();
+	clear_user_page_asm(vto, vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma)
+{
+	void *vfrom, *vto;
+	unsigned long flags;
+
+	/* Copy using TMPALIAS region.  This has the advantage
+	   that the `from' page doesn't need to be flushed.  However,
+	   the `to' page must be flushed in copy_user_page_asm since
+	   it can be used to bring in executable code.  */
+
+	vfrom = kmap_atomic(from, KM_USER0);
+	vto = kmap_atomic(to, KM_USER1);
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	pdtlb_kernel(vfrom);
+	purge_tlb_end(flags);
+	preempt_disable();
+	copy_user_page_asm(vto, vfrom, vaddr);
+	flush_dcache_page_asm(__pa(vto), vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER1); */
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+#endif /* CONFIG_PARISC_TMPALIAS */
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 18670a0..fcef82d 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -483,7 +483,7 @@
 	 * B <-> _PAGE_DMB (memory break)
 	 *
 	 * Then incredible subtlety: The access rights are
-	 * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
+	 * _PAGE_GATEWAY, _PAGE_EXEC and _PAGE_WRITE
 	 * See 3-14 of the parisc 2.0 manual
 	 *
 	 * Finally, _PAGE_READ goes in the top bit of PL1 (so we
@@ -493,7 +493,7 @@
 
 	/* PAGE_USER indicates the page can be read with user privileges,
 	 * so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1
-	 * contains _PAGE_READ */
+	 * contains _PAGE_READ) */
 	extrd,u,*=      \pte,_PAGE_USER_BIT+32,1,%r0
 	depdi		7,11,3,\prot
 	/* If we're a gateway page, drop PL2 back to zero for promotion
@@ -1785,9 +1785,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1817,7 +1817,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1836,8 +1836,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1860,7 +1861,7 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..8094d3e 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
-	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+	.flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
-	.flags = IRQF_DISABLED | IRQF_PERCPU,
+	.flags = IRQF_PERCPU,
 };
 #endif
 
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
 {
 	local_irq_disable();	/* PARANOID - should already be disabled */
 	mtctl(~0UL, 23);	/* EIRR : clear all pending external intr */
-	claim_cpu_irqs();
 #ifdef CONFIG_SMP
-	if (!cpu_eiem)
+	if (!cpu_eiem) {
+		claim_cpu_irqs();
 		cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+	}
 #else
+	claim_cpu_irqs();
 	cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 5d7218a..ed401dd 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -199,7 +199,6 @@ ENTRY(flush_instruction_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
 	load32		cache_info, %r1
 
 	/* Flush Instruction Cache */
@@ -208,20 +207,46 @@ ENTRY(flush_instruction_cache_local)
 	LDREG		ICACHE_STRIDE(%r1), %arg1
 	LDREG		ICACHE_COUNT(%r1), %arg2
 	LDREG		ICACHE_LOOP(%r1), %arg3
-	rsm             PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fioneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fisync	/* If loop < 0, do sync */
 
 fimanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fimanyloop	/* Adjusted inner loop decr */
-	fice            %r0(%sr1, %arg0)
-	fice,m		%arg1(%sr1, %arg0)	/* Last fice and addr adjust */
+	fice            %r0(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)	/* Last fice and addr adjust */
 	movb,tr		%arg3, %r31, fimanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fisync	/* Outer loop decr */
 
 fioneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fioneloop	/* Outer loop count decr */
-	fice,m		%arg1(%sr1, %arg0)	/* Fice for one loop */
+	/* Some implementations may flush with a single fice instruction */
+	cmpib,COND(>>=),n	15, %arg2, fioneloop2
+
+fioneloop1:
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	addib,COND(>)	-16, %arg2, fioneloop1
+	fice,m		%arg1(%sr4, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fisync	/* Predict branch taken */
+
+fioneloop2:
+	addib,COND(>)	-1, %arg2, fioneloop2	/* Outer loop count decr */
+	fice,m		%arg1(%sr4, %arg0)	/* Fice for one loop */
 
 fisync:
 	sync
@@ -240,8 +265,7 @@ ENTRY(flush_data_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
-	load32 		cache_info, %r1
+	load32		cache_info, %r1
 
 	/* Flush Data Cache */
 
@@ -249,20 +273,46 @@ ENTRY(flush_data_cache_local)
 	LDREG		DCACHE_STRIDE(%r1), %arg1
 	LDREG		DCACHE_COUNT(%r1), %arg2
 	LDREG		DCACHE_LOOP(%r1), %arg3
-	rsm		PSW_SM_I, %r22
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fdoneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fdsync	/* If loop < 0, do sync */
 
 fdmanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fdmanyloop	/* Adjusted inner loop decr */
-	fdce		%r0(%sr1, %arg0)
-	fdce,m		%arg1(%sr1, %arg0)	/* Last fdce and addr adjust */
+	fdce		%r0(%arg0)
+	fdce,m		%arg1(%arg0)	/* Last fdce and addr adjust */
 	movb,tr		%arg3, %r31, fdmanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fdsync	/* Outer loop decr */
 
 fdoneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fdoneloop	/* Outer loop count decr */
-	fdce,m		%arg1(%sr1, %arg0)	/* Fdce for one loop */
+	/* Some implementations may flush with a single fdce instruction */
+	cmpib,COND(>>=),n	15, %arg2, fdoneloop2
+
+fdoneloop1:
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	addib,COND(>)	-16, %arg2, fdoneloop1
+	fdce,m		%arg1(%arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fdsync	/* Predict branch taken */
+
+fdoneloop2:
+	addib,COND(>)	-1, %arg2, fdoneloop2	/* Outer loop count decr */
+	fdce,m		%arg1(%arg0)	/* Fdce for one loop */
 
 fdsync:
 	syncdma
@@ -277,7 +327,104 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+/* Macros to serialize TLB purge operations on SMP.  */
+
+	.macro	tlb_lock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock,%r1
+	ldo		R%pa_tlb_lock(%r1),\la
+	rsm		PSW_SM_I,\flags
+1:	LDCW		0(\la),\tmp
+	cmpib,<>,n	0,\tmp,3f
+2:	ldw		0(\la),\tmp
+	cmpb,<>		%r0,\tmp,1b
+	nop
+	b,n		2b
+3:
+#endif
+	.endm
+
+	.macro	tlb_unlock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldi		1,\tmp
+	stw		\tmp,0(\la)
+	mtsm		\flags
+#endif
+	.endm
+
+/* Clear page using kernel mapping.  */
+
+ENTRY(clear_page_asm)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+#ifdef CONFIG_64BIT
+
+	/* Unroll the loop.  */
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:
+	std		%r0, 0(%r26)
+	std		%r0, 8(%r26)
+	std		%r0, 16(%r26)
+	std		%r0, 24(%r26)
+	std		%r0, 32(%r26)
+	std		%r0, 40(%r26)
+	std		%r0, 48(%r26)
+	std		%r0, 56(%r26)
+	std		%r0, 64(%r26)
+	std		%r0, 72(%r26)
+	std		%r0, 80(%r26)
+	std		%r0, 88(%r26)
+	std		%r0, 96(%r26)
+	std		%r0, 104(%r26)
+	std		%r0, 112(%r26)
+	std		%r0, 120(%r26)
+
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
+
+#else
+
+	/*
+	 * Note that until (if) we start saving the full 64-bit register
+	 * values on interrupt, we can't use std on a 32 bit kernel.
+	 */
+	ldi		(PAGE_SIZE / 64), %r1
+
+1:
+	stw		%r0, 0(%r26)
+	stw		%r0, 4(%r26)
+	stw		%r0, 8(%r26)
+	stw		%r0, 12(%r26)
+	stw		%r0, 16(%r26)
+	stw		%r0, 20(%r26)
+	stw		%r0, 24(%r26)
+	stw		%r0, 28(%r26)
+	stw		%r0, 32(%r26)
+	stw		%r0, 36(%r26)
+	stw		%r0, 40(%r26)
+	stw		%r0, 44(%r26)
+	stw		%r0, 48(%r26)
+	stw		%r0, 52(%r26)
+	stw		%r0, 56(%r26)
+	stw		%r0, 60(%r26)
+
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		64(%r26), %r26
+#endif
+	bv		%r0(%r2)
+	nop
+	.exit
+
+	.procend
+ENDPROC(clear_page_asm)
+
+/* Copy page using kernel mapping.  */
+
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -285,18 +432,14 @@ ENTRY(copy_user_page_asm)
 #ifdef CONFIG_64BIT
 	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
 	 * Unroll the loop by hand and arrange insn appropriately.
-	 * GCC probably can do this just as well.
+	 * Prefetch doesn't improve performance on rp3440.
+	 * GCC probably can do this just as well...
 	 */
 
-	ldd		0(%r25), %r19
 	ldi		(PAGE_SIZE / 128), %r1
 
-	ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
-	ldw		128(%r25), %r0		/* prefetch 2 */
-
-1:	ldd		8(%r25), %r20
-	ldw		192(%r25), %r0		/* prefetch 3 */
-	ldw		256(%r25), %r0		/* prefetch 4 */
+1:	ldd		0(%r25), %r19
+	ldd		8(%r25), %r20
 
 	ldd		16(%r25), %r21
 	ldd		24(%r25), %r22
@@ -330,20 +473,16 @@ ENTRY(copy_user_page_asm)
 
 	ldd		112(%r25), %r21
 	ldd		120(%r25), %r22
+	ldo		128(%r25), %r25
 	std		%r19, 96(%r26)
 	std		%r20, 104(%r26)
 
-	ldo		128(%r25), %r25
 	std		%r21, 112(%r26)
 	std		%r22, 120(%r26)
-	ldo		128(%r26), %r26
 
-	/* conditional branches nullify on forward taken branch, and on
-	 * non-taken backward branch. Note that .+4 is a backwards branch.
-	 * The ldd should only get executed if the branch is taken.
-	 */
-	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
-	ldd		0(%r25), %r19		/* start next loads */
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
 
 #else
 
@@ -399,7 +538,7 @@ ENTRY(copy_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,8 +561,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
-
 	/*
 	 * We can't do this since copy_user_page is used to bring in
 	 * file data that might have instructions. Since the data would
@@ -435,6 +572,7 @@ ENDPROC(copy_user_page_asm)
 	 * use it if more information is passed into copy_user_page().
 	 * Have to do some measurements to see if it is worthwhile to
 	 * lobby for such a change.
+	 *
 	 */
 
 ENTRY(copy_user_page_asm)
@@ -442,16 +580,21 @@ ENTRY(copy_user_page_asm)
 	.callinfo NO_CALLS
 	.entry
 
+	/* Convert virtual `to' and `from' addresses to physical addresses.
+	   Move `from' physical address to non shadowed register.  */
 	ldil		L%(__PAGE_OFFSET), %r1
 	sub		%r26, %r1, %r26
-	sub		%r25, %r1, %r23		/* move physical addr into non shadowed reg */
+	sub		%r25, %r1, %r23
 
 	ldil		L%(TMPALIAS_MAP_START), %r28
 	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
-	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+#endif
+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
+	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
@@ -466,10 +609,76 @@ ENTRY(copy_user_page_asm)
 
 	/* Purge any old translations */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+	pdtlb,l		0(%r29)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
-	ldi		64, %r1
+#ifdef CONFIG_64BIT
+	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
+	 * Unroll the loop by hand and arrange insn appropriately.
+	 * GCC probably can do this just as well.
+	 */
+
+	ldd		0(%r29), %r19
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:	ldd		8(%r29), %r20
+
+	ldd		16(%r29), %r21
+	ldd		24(%r29), %r22
+	std		%r19, 0(%r28)
+	std		%r20, 8(%r28)
+
+	ldd		32(%r29), %r19
+	ldd		40(%r29), %r20
+	std		%r21, 16(%r28)
+	std		%r22, 24(%r28)
+
+	ldd		48(%r29), %r21
+	ldd		56(%r29), %r22
+	std		%r19, 32(%r28)
+	std		%r20, 40(%r28)
+
+	ldd		64(%r29), %r19
+	ldd		72(%r29), %r20
+	std		%r21, 48(%r28)
+	std		%r22, 56(%r28)
+
+	ldd		80(%r29), %r21
+	ldd		88(%r29), %r22
+	std		%r19, 64(%r28)
+	std		%r20, 72(%r28)
+
+	ldd		 96(%r29), %r19
+	ldd		104(%r29), %r20
+	std		%r21, 80(%r28)
+	std		%r22, 88(%r28)
+
+	ldd		112(%r29), %r21
+	ldd		120(%r29), %r22
+	std		%r19, 96(%r28)
+	std		%r20, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r21, 112(%r28)
+	std		%r22, 120(%r28)
+	ldo		128(%r28), %r28
+
+	/* conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 * The ldd should only get executed if the branch is taken.
+	 */
+	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
+	ldd		0(%r29), %r19		/* start next loads */
+
+#else
+	ldi		(PAGE_SIZE / 64), %r1
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,9 +689,7 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
+1:	ldw		0(%r29), %r19
 	ldw		4(%r29), %r20
 	ldw		8(%r29), %r21
 	ldw		12(%r29), %r22
@@ -515,8 +722,10 @@ ENTRY(copy_user_page_asm)
 	stw		%r21, 56(%r28)
 	stw		%r22, 60(%r28)
 	ldo		64(%r28), %r28
+
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
+#endif
 
 	bv		%r0(%r2)
 	nop
@@ -524,9 +733,8 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -550,7 +758,13 @@ ENTRY(__clear_user_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
@@ -580,8 +794,7 @@ ENTRY(__clear_user_page_asm)
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
-	stw		%r0, 0(%r28)
+1:	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
 	stw		%r0, 12(%r28)
@@ -606,7 +819,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_dcache_page_asm)
 	.proc
@@ -630,7 +843,13 @@ ENTRY(flush_dcache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), %r1
@@ -663,8 +882,17 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		%r1(%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pdtlb		(%r25)
+	nop
 	.exit
 
 	.procend
@@ -692,7 +920,13 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
-	pitlb		(%sr4,%r28)
+#ifdef CONFIG_PA20
+	pitlb,l         %r0(%sr4,%r28)
+#else
+	tlb_lock        %r20,%r21,%r22
+	pitlb           (%sr4,%r28)
+	tlb_unlock      %r20,%r21,%r22
+#endif
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -727,8 +961,17 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r1(%sr4,%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pitlb,l         %r0(%sr4,%r25)
+#else
+	tlb_lock        %r20,%r21,%r22
+	pitlb           (%sr4,%r25)
+	tlb_unlock      %r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pitlb		(%sr4,%r25)
+	nop
 	.exit
 
 	.procend
@@ -777,7 +1020,7 @@ ENTRY(flush_kernel_dcache_page_asm)
 	.procend
 ENDPROC(flush_kernel_dcache_page_asm)
 
-ENTRY(purge_kernel_dcache_page)
+ENTRY(purge_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -817,7 +1060,7 @@ ENTRY(purge_kernel_dcache_page)
 	.exit
 
 	.procend
-ENDPROC(purge_kernel_dcache_page)
+ENDPROC(purge_kernel_dcache_page_asm)
 
 ENTRY(flush_user_dcache_range_asm)
 	.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index ceec85d..6795dc6 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -157,5 +157,6 @@ extern void _mcount(void);
 EXPORT_SYMBOL(_mcount);
 #endif
 
-/* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+/* from pacache.S -- needed for clear/copy_page */
+EXPORT_SYMBOL(clear_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d4b94b3..2c05a92 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -309,7 +309,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 		cregs->ksp = (unsigned long)stack
 			+ (pregs->gr[21] & (THREAD_SIZE - 1));
 		cregs->gr[30] = usp;
-		if (p->personality == PER_HPUX) {
+		if (personality(p->personality) == PER_HPUX) {
 #ifdef CONFIG_HPUX
 			cregs->kpc = (unsigned long) &hpux_child_return;
 #else
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 594459b..56e0087 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -308,7 +308,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #if DEBUG_SIG
 	/* Assert that we're flushing in the correct space... */
 	{
-		int sid;
+		unsigned long sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
 		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
 		       sid, frame->tramp);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..b3032f9 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
@@ -225,12 +226,12 @@ long parisc_personality(unsigned long personality)
 	long err;
 
 	if (personality(current->personality) == PER_LINUX32
-	    && personality == PER_LINUX)
-		personality = PER_LINUX32;
+	    && personality(personality) == PER_LINUX)
+		personality = (personality & ~PER_MASK) | PER_LINUX32;
 
 	err = sys_personality(personality);
-	if (err == PER_LINUX32)
-		err = PER_LINUX;
+	if (personality(err) == PER_LINUX32)
+		err = (err & ~PER_MASK) | PER_LINUX;
 
 	return err;
 }
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 82a52b2..837c602 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -180,9 +180,10 @@ linux_gateway_entry:
 
 	/* Are we being ptraced? */
 	mfctl	%cr30, %r1
-	LDREG	TI_TASK(%r1),%r1
-	ldw	TASK_PTRACE(%r1), %r1
-	bb,<,n	%r1,31,.Ltracesys
+	LDREG   TI_FLAGS(%r1),%r1
+	ldi	(_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_BLOCKSTEP), %r19
+	and,COND(=) %r19, %r1, %r0
+	b,n	.Ltracesys
 	
 	/* Note!  We cannot use the syscall table that is mapped
 	nearby since the gateway page is mapped execute-only. */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 70e105d..4a24ba7 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -77,7 +77,7 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 6) < cpt) {
+	if ((cycles_elapsed >> 7) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
diff --git a/arch/parisc/math-emu/cnv_float.h b/arch/parisc/math-emu/cnv_float.h
index 9071e09..37299c7 100644
--- a/arch/parisc/math-emu/cnv_float.h
+++ b/arch/parisc/math-emu/cnv_float.h
@@ -347,16 +347,15 @@
     Sgl_isinexact_to_fix(sgl_value,exponent)
 
 #define Duint_from_sgl_mantissa(sgl_value,exponent,dresultA,dresultB)	\
-  {Sall(sgl_value) <<= SGL_EXP_LENGTH;  /*  left-justify  */		\
+  {unsigned int val = Sall(sgl_value) << SGL_EXP_LENGTH;		\
     if (exponent <= 31) {						\
     	Dintp1(dresultA) = 0;						\
-    	Dintp2(dresultB) = (unsigned)Sall(sgl_value) >> (31 - exponent); \
+    	Dintp2(dresultB) = val >> (31 - exponent);			\
     }									\
     else {								\
-    	Dintp1(dresultA) = Sall(sgl_value) >> (63 - exponent);		\
-    	Dintp2(dresultB) = Sall(sgl_value) << (exponent - 31);		\
+    	Dintp1(dresultA) = val >> (63 - exponent);			\
+    	Dintp2(dresultB) = exponent <= 62 ? val << (exponent - 31) : 0;	\
     }									\
-    Sall(sgl_value) >>= SGL_EXP_LENGTH;  /* return to original */	\
   }
 
 #define Duint_setzero(dresultA,dresultB) 	\
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 18162ce..524bf5a 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -175,10 +175,12 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	struct mm_struct *mm = tsk->mm;
 	unsigned long acc_type;
 	int fault;
+	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	if (in_atomic() || !mm)
 		goto no_context;
 
+retry:
 	down_read(&mm->mmap_sem);
 	vma = find_vma_prev(mm, address, &prev_vma);
 	if (!vma || address < vma->vm_start)
@@ -201,7 +203,12 @@ good_area:
 	 * fault.
 	 */
 
-	fault = handle_mm_fault(mm, vma, address, (acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0);
+	fault = handle_mm_fault(mm, vma, address,
+		flags | ((acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0));
+
+	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+		return;
+
 	if (unlikely(fault & VM_FAULT_ERROR)) {
 		/*
 		 * We hit a shared mapping outside of the file, or some
@@ -214,10 +221,22 @@ good_area:
 			goto bad_area;
 		BUG();
 	}
-	if (fault & VM_FAULT_MAJOR)
-		current->maj_flt++;
-	else
-		current->min_flt++;
+	if (flags & FAULT_FLAG_ALLOW_RETRY) {
+		if (fault & VM_FAULT_MAJOR)
+			current->maj_flt++;
+		else
+			current->min_flt++;
+		if (fault & VM_FAULT_RETRY) {
+			flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+			/* No need to up_read(&mm->mmap_sem) as we would
+			 * have already released it in __lock_page_or_retry
+			 * in mm/filemap.c.
+			 */
+
+			goto retry;
+		}
+	}
 	up_read(&mm->mmap_sem);
 	return;
 
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index eebd6d5..078a593 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -581,6 +581,7 @@ out_eoi:
 void
 handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 {
+	struct irqaction *action;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	kstat_incr_irqs_this_cpu(irq, desc);
@@ -588,7 +589,9 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 	if (chip->irq_ack)
 		chip->irq_ack(&desc->irq_data);
 
-	handle_irq_event_percpu(desc, desc->action);
+	action = desc->action;
+	if (action)
+		handle_irq_event_percpu(desc, action);
 
 	if (chip->irq_eoi)
 		chip->irq_eoi(&desc->irq_data);

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On 9/19/2012 7:26 PM, John David Anglin wrote:
> On 19-Sep-12, at 2:06 AM, Rolf Eike Beer wrote:
> 
>> IIRC you need CONFIG_DISCONTIGMEM.
> 
> Enclosed is my latest kernel patch against 3.5.4.
> 
> One of things it addresses is an issue with CONFIG_DISCONTIGMEM introduced in 3.4.
> 
> Another new thing is a hack which tries to paper over a softirq problem.  For some reason,
> we sometimes run off the end of the vector pending list causing a panic.  This is probably related
> to the restart issues discussed by Al Viro as things were worse with Al's suggested change.

Rolf, Thibaut (on Google+), thanks for pointing out that 
without CONFIG_DISCONTIGMEM we don't pickup the other 
ranges. I have a patch to make the kernel warnings messages
clearer about this.

Dave, Thanks for the patch!

Cheers,
Carlos.

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From - Thu Nov 08 21:08:36 2018
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From: Denys Vlasenko <vda.linux@googlemail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: parisc: orphaned asm/compat_signal.h file?
Date: Mon, 24 Sep 2012 14:39:49 +0200
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Hi,

I noticed the following:

In linux-mmotm and parisc-2.6.git trees,
arch/parisc/include/asm/compat_signal.h file is just:


/* Use generic */
#include <asm-generic/compat_signal.h>


which isn't correct since asm-generic/compat_signal.h doesn't exist.

Nobody noticed this because arch/parisc/include/asm/compat_signal.h
itself is not included by any other file.

Maybe it needs to be removed?

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From - Thu Nov 08 21:08:36 2018
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Subject: Re: parisc: orphaned asm/compat_signal.h file?
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On 24-Sep-12, at 8:39 AM, Denys Vlasenko wrote:

> Maybe it needs to be removed?

Worked for me with 3.5.4.

Dave
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Commit-ID:  fbe752188d5589e7fcbb8e79824e560f77dccc92
Gitweb:     http://git.kernel.org/tip/fbe752188d5589e7fcbb8e79824e560f77dccc92
Author:     Frederic Weisbecker <fweisbec@gmail.com>
AuthorDate: Wed, 22 Aug 2012 17:27:34 +0200
Committer:  Paul E. McKenney <paulmck@linux.vnet.ibm.com>
CommitDate: Sun, 23 Sep 2012 07:44:49 -0700

parisc: Add missing RCU idle APIs on idle loop

In the old times, the whole idle task was considered
as an RCU quiescent state. But as RCU became more and
more successful overtime, some RCU read side critical
section have been added even in the code of some
architectures idle tasks, for tracing for example.

So nowadays, rcu_idle_enter() and rcu_idle_exit() must
be called by the architecture to tell RCU about the part
in the idle loop that doesn't make use of rcu read side
critical sections, typically the part that puts the CPU
in low power mode.

This is necessary for RCU to find the quiescent states in
idle in order to complete grace periods.

Add this missing pair of calls in the parisc's idle loop.

Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Parisc <linux-parisc@vger.kernel.org>
Cc: <stable@vger.kernel.org> # 3.3+
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
 arch/parisc/kernel/process.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 2c05a92..8c6b6b6 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -48,6 +48,7 @@
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
 #include <linux/uaccess.h>
+#include <linux/rcupdate.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -69,8 +70,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			barrier();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 		check_pgt_cache();
 	}
--
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: parisc: orphaned asm/compat_signal.h file?
Date: Fri, 28 Sep 2012 14:43:37 +0100
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Cc: Denys Vlasenko <vda.linux@googlemail.com>,
	Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
	linux-kernel@vger.kernel.org
To: John David Anglin <dave.anglin@bell.net>
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On Tue, 2012-09-25 at 19:23 -0400, John David Anglin wrote:
> On 24-Sep-12, at 8:39 AM, Denys Vlasenko wrote:
> 
> > Maybe it needs to be removed?
> 
> Worked for me with 3.5.4.

It's probably time to tidy up all of our asm-generic code and use the
proper infrastructure.  I thought of doing it when the word-at-a-time
problem arose, but I forgot about it.

James

---

diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 4383707..7fdde2e 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -1,4 +1,7 @@
 include include/asm-generic/Kbuild.asm
 
 header-y += pdc.h
-generic-y += word-at-a-time.h
+generic-y += word-at-a-time.h auxvec.h user.h cputime.h emergency-restart.h \
+	  segment.h topology.h vga.h device.h percpu.h hw_irq.h mutex.h \
+	  div64.h irq_regs.h kdebug.h kvm_para.h local64.h local.h param.h \
+	  poll.h xor.h
diff --git a/arch/parisc/include/asm/auxvec.h b/arch/parisc/include/asm/auxvec.h
deleted file mode 100644
index 9c3ac4b..0000000
--- a/arch/parisc/include/asm/auxvec.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#ifndef __ASMPARISC_AUXVEC_H
-#define __ASMPARISC_AUXVEC_H
-
-#endif
diff --git a/arch/parisc/include/asm/compat_signal.h b/arch/parisc/include/asm/compat_signal.h
deleted file mode 100644
index 6ad02c3..0000000
--- a/arch/parisc/include/asm/compat_signal.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* Use generic */
-#include <asm-generic/compat_signal.h>
diff --git a/arch/parisc/include/asm/cputime.h b/arch/parisc/include/asm/cputime.h
deleted file mode 100644
index dcdf2fb..0000000
--- a/arch/parisc/include/asm/cputime.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __PARISC_CPUTIME_H
-#define __PARISC_CPUTIME_H
-
-#include <asm-generic/cputime.h>
-
-#endif /* __PARISC_CPUTIME_H */
diff --git a/arch/parisc/include/asm/device.h b/arch/parisc/include/asm/device.h
deleted file mode 100644
index d8f9872..0000000
--- a/arch/parisc/include/asm/device.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * Arch specific extensions to struct device
- *
- * This file is released under the GPLv2
- */
-#include <asm-generic/device.h>
-
diff --git a/arch/parisc/include/asm/div64.h b/arch/parisc/include/asm/div64.h
deleted file mode 100644
index 6cd978c..0000000
--- a/arch/parisc/include/asm/div64.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/div64.h>
diff --git a/arch/parisc/include/asm/emergency-restart.h b/arch/parisc/include/asm/emergency-restart.h
deleted file mode 100644
index 108d8c4..0000000
--- a/arch/parisc/include/asm/emergency-restart.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_EMERGENCY_RESTART_H
-#define _ASM_EMERGENCY_RESTART_H
-
-#include <asm-generic/emergency-restart.h>
-
-#endif /* _ASM_EMERGENCY_RESTART_H */
diff --git a/arch/parisc/include/asm/hw_irq.h b/arch/parisc/include/asm/hw_irq.h
deleted file mode 100644
index 6707f7d..0000000
--- a/arch/parisc/include/asm/hw_irq.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef _ASM_HW_IRQ_H
-#define _ASM_HW_IRQ_H
-
-/*
- *	linux/include/asm/hw_irq.h
- */
-
-#endif
diff --git a/arch/parisc/include/asm/irq_regs.h b/arch/parisc/include/asm/irq_regs.h
deleted file mode 100644
index 3dd9c0b..0000000
--- a/arch/parisc/include/asm/irq_regs.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/irq_regs.h>
diff --git a/arch/parisc/include/asm/kdebug.h b/arch/parisc/include/asm/kdebug.h
deleted file mode 100644
index 6ece1b0..0000000
--- a/arch/parisc/include/asm/kdebug.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/kdebug.h>
diff --git a/arch/parisc/include/asm/kvm_para.h b/arch/parisc/include/asm/kvm_para.h
deleted file mode 100644
index 14fab8f..0000000
--- a/arch/parisc/include/asm/kvm_para.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/kvm_para.h>
diff --git a/arch/parisc/include/asm/local.h b/arch/parisc/include/asm/local.h
deleted file mode 100644
index c11c530..0000000
--- a/arch/parisc/include/asm/local.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/local.h>
diff --git a/arch/parisc/include/asm/local64.h b/arch/parisc/include/asm/local64.h
deleted file mode 100644
index 36c93b5..0000000
--- a/arch/parisc/include/asm/local64.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/local64.h>
diff --git a/arch/parisc/include/asm/mutex.h b/arch/parisc/include/asm/mutex.h
deleted file mode 100644
index 458c1f7..0000000
--- a/arch/parisc/include/asm/mutex.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Pull in the generic implementation for the mutex fastpath.
- *
- * TODO: implement optimized primitives instead, or leave the generic
- * implementation in place, or pick the atomic_xchg() based generic
- * implementation. (see asm-generic/mutex-xchg.h for details)
- */
-
-#include <asm-generic/mutex-dec.h>
diff --git a/arch/parisc/include/asm/param.h b/arch/parisc/include/asm/param.h
deleted file mode 100644
index 965d454..0000000
--- a/arch/parisc/include/asm/param.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/param.h>
diff --git a/arch/parisc/include/asm/percpu.h b/arch/parisc/include/asm/percpu.h
deleted file mode 100644
index a0dcd19..0000000
--- a/arch/parisc/include/asm/percpu.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _PARISC_PERCPU_H
-#define _PARISC_PERCPU_H
-
-#include <asm-generic/percpu.h>
-
-#endif 
-
diff --git a/arch/parisc/include/asm/poll.h b/arch/parisc/include/asm/poll.h
deleted file mode 100644
index c98509d..0000000
--- a/arch/parisc/include/asm/poll.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/poll.h>
diff --git a/arch/parisc/include/asm/real.h b/arch/parisc/include/asm/real.h
deleted file mode 100644
index 82acb25..0000000
--- a/arch/parisc/include/asm/real.h
+++ /dev/null
@@ -1,5 +0,0 @@
-#ifndef _PARISC_REAL_H
-#define _PARISC_REAL_H
-
-
-#endif
diff --git a/arch/parisc/include/asm/segment.h b/arch/parisc/include/asm/segment.h
deleted file mode 100644
index 26794dd..0000000
--- a/arch/parisc/include/asm/segment.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __PARISC_SEGMENT_H
-#define __PARISC_SEGMENT_H
-
-/* Only here because we have some old header files that expect it.. */
-
-#endif
diff --git a/arch/parisc/include/asm/topology.h b/arch/parisc/include/asm/topology.h
deleted file mode 100644
index d8133eb..0000000
--- a/arch/parisc/include/asm/topology.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_PARISC_TOPOLOGY_H
-#define _ASM_PARISC_TOPOLOGY_H
-
-#include <asm-generic/topology.h>
-
-#endif /* _ASM_PARISC_TOPOLOGY_H */
diff --git a/arch/parisc/include/asm/user.h b/arch/parisc/include/asm/user.h
deleted file mode 100644
index 8022475..0000000
--- a/arch/parisc/include/asm/user.h
+++ /dev/null
@@ -1,5 +0,0 @@
-/* This file should not exist, but lots of generic code still includes
-   it. It's a hangover from old a.out days and the traditional core
-   dump format.  We are ELF-only, and so are our core dumps.  If we
-   need to support HP/UX core format then we'll do it here
-   eventually. */
diff --git a/arch/parisc/include/asm/vga.h b/arch/parisc/include/asm/vga.h
deleted file mode 100644
index 171399a..0000000
--- a/arch/parisc/include/asm/vga.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ASM_PARISC_VGA_H__
-#define __ASM_PARISC_VGA_H__
-
-/* nothing */

From - Thu Nov 08 21:08:36 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: parisc: orphaned asm/compat_signal.h file?
Date: Sat, 29 Sep 2012 16:24:25 -0400
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Cc: Denys Vlasenko <vda.linux@googlemail.com>,
	Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
	linux-kernel@vger.kernel.org
To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On 28-Sep-12, at 9:43 AM, James Bottomley wrote:

> On Tue, 2012-09-25 at 19:23 -0400, John David Anglin wrote:
>> On 24-Sep-12, at 8:39 AM, Denys Vlasenko wrote:
>>
>>> Maybe it needs to be removed?
>>
>> Worked for me with 3.5.4.
>
> It's probably time to tidy up all of our asm-generic code and use the
> proper infrastructure.  I thought of doing it when the word-at-a-time
> problem arose, but I forgot about it.


This is a nice cleanup.  I merged the change into my patch against
v3.5.4 for linux-stable.

Had to remove the kvm_para.h hunk because I hit this issue:
https://lkml.org/lkml/2012/6/13/226
Assume this is now fixed.

I also noticed that your cleanup  doesn't remove arch/parisc/include/ 
asm/compat_rt_sigframe.h.
Not exactly an asm-generic issue, but I believe the header is unused.

Dave
--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-1--871605220
Content-Disposition: attachment;
	filename="linux-stable-3.5.4-20120929-4.d.txt"
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	name="linux-stable-3.5.4-20120929-4.d.txt"
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diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 4383707..ec37c89 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -1,4 +1,7 @@
 include include/asm-generic/Kbuild.asm
 
 header-y += pdc.h
-generic-y += word-at-a-time.h
+generic-y += word-at-a-time.h auxvec.h user.h cputime.h emergency-restart.h \
+	  segment.h topology.h vga.h device.h percpu.h hw_irq.h mutex.h \
+	  div64.h irq_regs.h kdebug.h local64.h local.h param.h \
+	  poll.h xor.h
diff --git a/arch/parisc/include/asm/auxvec.h b/arch/parisc/include/asm/auxvec.h
deleted file mode 100644
index 9c3ac4b..0000000
--- a/arch/parisc/include/asm/auxvec.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#ifndef __ASMPARISC_AUXVEC_H
-#define __ASMPARISC_AUXVEC_H
-
-#endif
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 9f21ab0..79f694f 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -115,7 +115,9 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 {
 	if (PageAnon(page)) {
 		flush_tlb_page(vma, vmaddr);
+		preempt_disable();
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
+		preempt_enable();
 	}
 }
 
diff --git a/arch/parisc/include/asm/compat_rt_sigframe.h b/arch/parisc/include/asm/compat_rt_sigframe.h
deleted file mode 100644
index 81bec28..0000000
--- a/arch/parisc/include/asm/compat_rt_sigframe.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#include<linux/compat.h>
-#include<linux/compat_siginfo.h>
-#include<asm/compat_ucontext.h>
-
-#ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-#define _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-
-/* In a deft move of uber-hackery, we decide to carry the top half of all
- * 64-bit registers in a non-portable, non-ABI, hidden structure.
- * Userspace can read the hidden structure if it *wants* but is never
- * guaranteed to be in the same place. Infact the uc_sigmask from the 
- * ucontext_t structure may push the hidden register file downards
- */
-struct compat_regfile {
-	/* Upper half of all the 64-bit registers that were truncated
-	   on a copy to a 32-bit userspace */
-	compat_int_t rf_gr[32];
-	compat_int_t rf_iasq[2];
-	compat_int_t rf_iaoq[2];
-	compat_int_t rf_sar;
-};
-
-#define COMPAT_SIGRETURN_TRAMP 4
-#define COMPAT_SIGRESTARTBLOCK_TRAMP 5 
-#define COMPAT_TRAMP_SIZE (COMPAT_SIGRETURN_TRAMP + COMPAT_SIGRESTARTBLOCK_TRAMP)
-
-struct compat_rt_sigframe {
-	/* XXX: Must match trampoline size in arch/parisc/kernel/signal.c 
-	        Secondary to that it must protect the ERESTART_RESTARTBLOCK
-		trampoline we left on the stack (we were bad and didn't 
-		change sp so we could run really fast.) */
-	compat_uint_t tramp[COMPAT_TRAMP_SIZE];
-	compat_siginfo_t info;
-	struct compat_ucontext uc;
-	/* Hidden location of truncated registers, *must* be last. */
-	struct compat_regfile regs; 
-};
-
-/*
- * The 32-bit ABI wants at least 48 bytes for a function call frame:
- * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of
- * which Linux/parisc uses is sp-20 for the saved return pointer...)
- * Then, the stack pointer must be rounded to a cache line (64 bytes).
- */
-#define SIGFRAME32		64
-#define FUNCTIONCALLFRAME32	48
-#define PARISC_RT_SIGFRAME_SIZE32					\
-	(((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
-
-#endif
diff --git a/arch/parisc/include/asm/compat_signal.h b/arch/parisc/include/asm/compat_signal.h
deleted file mode 100644
index 6ad02c3..0000000
--- a/arch/parisc/include/asm/compat_signal.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* Use generic */
-#include <asm-generic/compat_signal.h>
diff --git a/arch/parisc/include/asm/cputime.h b/arch/parisc/include/asm/cputime.h
deleted file mode 100644
index dcdf2fb..0000000
--- a/arch/parisc/include/asm/cputime.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __PARISC_CPUTIME_H
-#define __PARISC_CPUTIME_H
-
-#include <asm-generic/cputime.h>
-
-#endif /* __PARISC_CPUTIME_H */
diff --git a/arch/parisc/include/asm/device.h b/arch/parisc/include/asm/device.h
deleted file mode 100644
index d8f9872..0000000
--- a/arch/parisc/include/asm/device.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * Arch specific extensions to struct device
- *
- * This file is released under the GPLv2
- */
-#include <asm-generic/device.h>
-
diff --git a/arch/parisc/include/asm/div64.h b/arch/parisc/include/asm/div64.h
deleted file mode 100644
index 6cd978c..0000000
--- a/arch/parisc/include/asm/div64.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/div64.h>
diff --git a/arch/parisc/include/asm/emergency-restart.h b/arch/parisc/include/asm/emergency-restart.h
deleted file mode 100644
index 108d8c4..0000000
--- a/arch/parisc/include/asm/emergency-restart.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_EMERGENCY_RESTART_H
-#define _ASM_EMERGENCY_RESTART_H
-
-#include <asm-generic/emergency-restart.h>
-
-#endif /* _ASM_EMERGENCY_RESTART_H */
diff --git a/arch/parisc/include/asm/hw_irq.h b/arch/parisc/include/asm/hw_irq.h
deleted file mode 100644
index 6707f7d..0000000
--- a/arch/parisc/include/asm/hw_irq.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef _ASM_HW_IRQ_H
-#define _ASM_HW_IRQ_H
-
-/*
- *	linux/include/asm/hw_irq.h
- */
-
-#endif
diff --git a/arch/parisc/include/asm/irq_regs.h b/arch/parisc/include/asm/irq_regs.h
deleted file mode 100644
index 3dd9c0b..0000000
--- a/arch/parisc/include/asm/irq_regs.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/irq_regs.h>
diff --git a/arch/parisc/include/asm/kdebug.h b/arch/parisc/include/asm/kdebug.h
deleted file mode 100644
index 6ece1b0..0000000
--- a/arch/parisc/include/asm/kdebug.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/kdebug.h>
diff --git a/arch/parisc/include/asm/local.h b/arch/parisc/include/asm/local.h
deleted file mode 100644
index c11c530..0000000
--- a/arch/parisc/include/asm/local.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/local.h>
diff --git a/arch/parisc/include/asm/local64.h b/arch/parisc/include/asm/local64.h
deleted file mode 100644
index 36c93b5..0000000
--- a/arch/parisc/include/asm/local64.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/local64.h>
diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index e67eb9c..31835b9 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -1,9 +1,10 @@
 #ifndef _PARISC_MMZONE_H
 #define _PARISC_MMZONE_H
 
+#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
+
 #ifdef CONFIG_DISCONTIGMEM
 
-#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
 extern int npmem_ranges;
 
 struct node_map_data {
@@ -60,7 +61,5 @@ static inline int pfn_valid(int pfn)
 	return 0;
 }
 
-#else /* !CONFIG_DISCONTIGMEM */
-#define MAX_PHYSMEM_RANGES 	1 
 #endif
 #endif /* _PARISC_MMZONE_H */
diff --git a/arch/parisc/include/asm/mutex.h b/arch/parisc/include/asm/mutex.h
deleted file mode 100644
index 458c1f7..0000000
--- a/arch/parisc/include/asm/mutex.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Pull in the generic implementation for the mutex fastpath.
- *
- * TODO: implement optimized primitives instead, or leave the generic
- * implementation in place, or pick the atomic_xchg() based generic
- * implementation. (see asm-generic/mutex-xchg.h for details)
- */
-
-#include <asm-generic/mutex-dec.h>
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index 4e0e7db..d9812d8 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -21,15 +21,27 @@
 #include <asm/types.h>
 #include <asm/cache.h>
 
-#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define clear_page(page)	clear_page_asm((void *)(page))
+#define copy_page(to,from)	copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
+void clear_page_asm(void *page);
+void copy_page_asm(void *to, void *from);
+void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+
+// #define CONFIG_PARISC_TMPALIAS
+
+#ifdef CONFIG_PARISC_TMPALIAS
+void clear_user_highpage(struct page *page, unsigned long vaddr);
+#define clear_user_highpage clear_user_highpage
+struct vm_area_struct;
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma);
+#define __HAVE_ARCH_COPY_USER_HIGHPAGE
+#endif
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/parisc/include/asm/param.h b/arch/parisc/include/asm/param.h
deleted file mode 100644
index 965d454..0000000
--- a/arch/parisc/include/asm/param.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/param.h>
diff --git a/arch/parisc/include/asm/percpu.h b/arch/parisc/include/asm/percpu.h
deleted file mode 100644
index a0dcd19..0000000
--- a/arch/parisc/include/asm/percpu.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _PARISC_PERCPU_H
-#define _PARISC_PERCPU_H
-
-#include <asm-generic/percpu.h>
-
-#endif 
-
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index ee99f23..563724d 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -12,11 +12,10 @@
 
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
+#include <linux/mm_types.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
-struct vm_area_struct;
-
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -40,7 +39,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm,addr,ptep, pteval)                        \
+        do{                                                     \
+                set_pte(ptep,pteval);                           \
+                purge_tlb_entries(mm,addr);                     \
+        } while(0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -462,10 +468,13 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #ifdef CONFIG_SMP
 	unsigned long new, old;
 
+	/* ??? This might be racy because the page table updates in
+	   entry.S don't use the same lock.  */
 	do {
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/include/asm/poll.h b/arch/parisc/include/asm/poll.h
deleted file mode 100644
index c98509d..0000000
--- a/arch/parisc/include/asm/poll.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/poll.h>
diff --git a/arch/parisc/include/asm/real.h b/arch/parisc/include/asm/real.h
deleted file mode 100644
index 82acb25..0000000
--- a/arch/parisc/include/asm/real.h
+++ /dev/null
@@ -1,5 +0,0 @@
-#ifndef _PARISC_REAL_H
-#define _PARISC_REAL_H
-
-
-#endif
diff --git a/arch/parisc/include/asm/segment.h b/arch/parisc/include/asm/segment.h
deleted file mode 100644
index 26794dd..0000000
--- a/arch/parisc/include/asm/segment.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __PARISC_SEGMENT_H
-#define __PARISC_SEGMENT_H
-
-/* Only here because we have some old header files that expect it.. */
-
-#endif
diff --git a/arch/parisc/include/asm/topology.h b/arch/parisc/include/asm/topology.h
deleted file mode 100644
index d8133eb..0000000
--- a/arch/parisc/include/asm/topology.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_PARISC_TOPOLOGY_H
-#define _ASM_PARISC_TOPOLOGY_H
-
-#include <asm-generic/topology.h>
-
-#endif /* _ASM_PARISC_TOPOLOGY_H */
diff --git a/arch/parisc/include/asm/user.h b/arch/parisc/include/asm/user.h
deleted file mode 100644
index 8022475..0000000
--- a/arch/parisc/include/asm/user.h
+++ /dev/null
@@ -1,5 +0,0 @@
-/* This file should not exist, but lots of generic code still includes
-   it. It's a hangover from old a.out days and the traditional core
-   dump format.  We are ELF-only, and so are our core dumps.  If we
-   need to support HP/UX core format then we'll do it here
-   eventually. */
diff --git a/arch/parisc/include/asm/vga.h b/arch/parisc/include/asm/vga.h
deleted file mode 100644
index 171399a..0000000
--- a/arch/parisc/include/asm/vga.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ASM_PARISC_VGA_H__
-#define __ASM_PARISC_VGA_H__
-
-/* nothing */
-
-#endif /* __ASM_PARISC_VGA_H__ */
diff --git a/arch/parisc/include/asm/xor.h b/arch/parisc/include/asm/xor.h
deleted file mode 100644
index c82eb12..0000000
--- a/arch/parisc/include/asm/xor.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/xor.h>
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index dcd5510..5df1597 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -141,6 +141,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -230,6 +231,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 9d18189..795d392 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -267,9 +267,11 @@ static inline void
 __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 		   unsigned long physaddr)
 {
+	preempt_disable();
 	flush_dcache_page_asm(physaddr, vmaddr);
 	if (vma->vm_flags & VM_EXEC)
 		flush_icache_page_asm(physaddr, vmaddr);
+	preempt_enable();
 }
 
 void flush_dcache_page(struct page *page)
@@ -315,7 +317,7 @@ void flush_dcache_page(struct page *page)
 		flush_tlb_page(mpnt, addr);
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
+			if (old_addr && parisc_requires_coherency())
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
 			old_addr = addr;
 		}
@@ -330,17 +332,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -374,20 +365,9 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
 
-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
-
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
-{
-	unsigned long flags;
-
-	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start(flags);
-	pdtlb_kernel(page);
-	purge_tlb_end(flags);
-	clear_user_page_asm(page, vaddr);
-}
-EXPORT_SYMBOL(clear_user_page);
+extern void purge_kernel_dcache_page_asm(unsigned long);
+extern void clear_user_page_asm(void *, unsigned long);
+extern void copy_user_page_asm(void *, void *, unsigned long);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
@@ -400,11 +380,26 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
+void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
+{
+	clear_page_asm(vto);
+	if (!parisc_requires_coherency())
+		flush_kernel_dcache_page_asm(vto);
+}
+EXPORT_SYMBOL(clear_user_page);
+
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-		    struct page *pg)
+	struct page *pg)
 {
-	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
+	/* Copy using kernel mapping.  No coherency is needed
+	   (all in kmap/kunmap) on machines that don't support
+	   non-equivalent aliasing.  However, the `from' page
+	   needs to be flushed before it can be accessed through
+	   the kernel mapping. */
+	preempt_disable();
+	flush_dcache_page_asm(__pa(vfrom), vaddr);
+	preempt_enable();
+	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
 		flush_kernel_dcache_page_asm(vto);
 }
@@ -420,6 +415,25 @@ void kunmap_parisc(void *addr)
 EXPORT_SYMBOL(kunmap_parisc);
 #endif
 
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags, sid;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	/* Disable preemption while we play with %sr1.  */
+	preempt_disable();
+	sid = mfsp(1);
+	mtsp(mm->context,1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+	mtsp(sid,1);
+	preempt_enable();
+}
+
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {
@@ -459,8 +473,65 @@ void flush_cache_all(void)
 	on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
 }
 
+static inline unsigned long mm_total_size(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long usize = 0;
+
+	for (vma = mm->mmap; vma; vma = vma->vm_next)
+		usize += vma->vm_end - vma->vm_start;
+	return usize;
+}
+
+static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
+{
+	pte_t *ptep = NULL;
+
+        if (!pgd_none(*pgd)) {
+                pud_t *pud = pud_offset(pgd, addr);
+                if (!pud_none(*pud)) {
+                        pmd_t *pmd = pmd_offset(pud, addr);
+                        if (!pmd_none(*pmd)) {
+                                ptep = pte_offset_map(pmd, addr);
+                        }
+                }
+        }
+	return ptep;
+}
+
 void flush_cache_mm(struct mm_struct *mm)
 {
+	/* Flushing the whole cache on each cpu takes forever on
+	   rp3440, etc.  So, avoid it if the mm isn't too big.
+	   Note: This approach is faster than a range flush when the
+	   context is current, and it works even when non current.  */
+	if (mm_total_size(mm) < parisc_cache_flush_threshold) {
+		struct vm_area_struct *vma;
+
+		if (mm->context == mfsp(3)) {
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				flush_user_dcache_range_asm(vma->vm_start, vma->vm_end);
+				if(vma->vm_flags & VM_EXEC)
+					flush_user_icache_range_asm(vma->vm_start, vma->vm_end);
+			}
+		} else {
+			pgd_t *pgd = mm->pgd;
+
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				unsigned long addr;
+
+				for (addr = vma->vm_start; addr < vma->vm_end; addr += PAGE_SIZE) {
+					pte_t *ptep = get_ptep(pgd, addr);
+					if (ptep != NULL) {
+						pte_t pte = *ptep;
+						__flush_cache_page(vma, addr, page_to_phys(pte_page(pte)));
+					}
+				}
+			}
+		}
+		return;
+	}
+
 #ifdef CONFIG_SMP
 	flush_cache_all();
 #else
@@ -486,20 +557,34 @@ flush_user_icache_range(unsigned long start, unsigned long end)
 		flush_instruction_cache();
 }
 
-
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	int sr3;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
+	if ((end - start) < parisc_cache_flush_threshold) {
+		if (vma->vm_mm->context == mfsp(3)) {
+			flush_user_dcache_range_asm(start,end);
+			if(vma->vm_flags & VM_EXEC)
+				flush_user_icache_range_asm(start,end);
+		} else {
+			unsigned long addr;
+			pgd_t *pgd = vma->vm_mm->pgd;
+
+			for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+				pte_t *ptep = get_ptep(pgd, addr);
+				if (ptep != NULL) {
+					pte_t pte = *ptep;
+					flush_cache_page(vma, addr, pte_pfn(pte));
+				}
+			}
+		}
 	} else {
+#ifdef CONFIG_SMP
 		flush_cache_all();
+#else
+		flush_cache_all_local();
+#endif
 	}
 }
 
@@ -512,3 +597,67 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
+
+#ifdef CONFIG_PARISC_TMPALIAS
+
+void clear_user_highpage(struct page *page, unsigned long vaddr)
+{
+	void *vto;
+	unsigned long flags;
+
+	/* Clear using TMPALIAS region.  The page doesn't need to
+	   be flushed but the kernel mapping needs to be purged.  */
+
+	vto = kmap_atomic(page, KM_USER0);
+
+	/* The PA-RISC 2.0 Architecture book states on page F-6:
+	   "Before a write-capable translation is enabled, *all*
+	   non-equivalently-aliased translations must be removed
+	   from the page table and purged from the TLB.  (Note
+	   that the caches are not required to be flushed at this
+	   time.)  Before any non-equivalent aliased translation
+	   is re-enabled, the virtual address range for the writeable
+	   page (the entire page) must be flushed from the cache,
+	   and the write-capable translation removed from the page
+	   table and purged from the TLB."  */
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	purge_tlb_end(flags);
+	preempt_disable();
+	clear_user_page_asm(vto, vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma)
+{
+	void *vfrom, *vto;
+	unsigned long flags;
+
+	/* Copy using TMPALIAS region.  This has the advantage
+	   that the `from' page doesn't need to be flushed.  However,
+	   the `to' page must be flushed in copy_user_page_asm since
+	   it can be used to bring in executable code.  */
+
+	vfrom = kmap_atomic(from, KM_USER0);
+	vto = kmap_atomic(to, KM_USER1);
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	pdtlb_kernel(vfrom);
+	purge_tlb_end(flags);
+	preempt_disable();
+	copy_user_page_asm(vto, vfrom, vaddr);
+	flush_dcache_page_asm(__pa(vto), vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER1); */
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+#endif /* CONFIG_PARISC_TMPALIAS */
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 18670a0..fcef82d 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -483,7 +483,7 @@
 	 * B <-> _PAGE_DMB (memory break)
 	 *
 	 * Then incredible subtlety: The access rights are
-	 * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
+	 * _PAGE_GATEWAY, _PAGE_EXEC and _PAGE_WRITE
 	 * See 3-14 of the parisc 2.0 manual
 	 *
 	 * Finally, _PAGE_READ goes in the top bit of PL1 (so we
@@ -493,7 +493,7 @@
 
 	/* PAGE_USER indicates the page can be read with user privileges,
 	 * so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1
-	 * contains _PAGE_READ */
+	 * contains _PAGE_READ) */
 	extrd,u,*=      \pte,_PAGE_USER_BIT+32,1,%r0
 	depdi		7,11,3,\prot
 	/* If we're a gateway page, drop PL2 back to zero for promotion
@@ -1785,9 +1785,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1817,7 +1817,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1836,8 +1836,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1860,7 +1861,7 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index 08324aa..3295ef4 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -186,12 +186,14 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 
 	if (status != PDC_OK) {
 		/* no more cell modules or error */
+		kfree(pa_pdc_cell);
 		return status;
 	}
 
 	temp = pa_pdc_cell->cba;
 	dev = alloc_pa_dev(PAT_GET_CBA(temp), &(pa_pdc_cell->mod_path));
 	if (!dev) {
+		kfree(pa_pdc_cell);
 		return PDC_OK;
 	}
 
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..8094d3e 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
-	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+	.flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
-	.flags = IRQF_DISABLED | IRQF_PERCPU,
+	.flags = IRQF_PERCPU,
 };
 #endif
 
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
 {
 	local_irq_disable();	/* PARANOID - should already be disabled */
 	mtctl(~0UL, 23);	/* EIRR : clear all pending external intr */
-	claim_cpu_irqs();
 #ifdef CONFIG_SMP
-	if (!cpu_eiem)
+	if (!cpu_eiem) {
+		claim_cpu_irqs();
 		cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+	}
 #else
+	claim_cpu_irqs();
 	cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 5d7218a..ed401dd 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -199,7 +199,6 @@ ENTRY(flush_instruction_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
 	load32		cache_info, %r1
 
 	/* Flush Instruction Cache */
@@ -208,20 +207,46 @@ ENTRY(flush_instruction_cache_local)
 	LDREG		ICACHE_STRIDE(%r1), %arg1
 	LDREG		ICACHE_COUNT(%r1), %arg2
 	LDREG		ICACHE_LOOP(%r1), %arg3
-	rsm             PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fioneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fisync	/* If loop < 0, do sync */
 
 fimanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fimanyloop	/* Adjusted inner loop decr */
-	fice            %r0(%sr1, %arg0)
-	fice,m		%arg1(%sr1, %arg0)	/* Last fice and addr adjust */
+	fice            %r0(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)	/* Last fice and addr adjust */
 	movb,tr		%arg3, %r31, fimanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fisync	/* Outer loop decr */
 
 fioneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fioneloop	/* Outer loop count decr */
-	fice,m		%arg1(%sr1, %arg0)	/* Fice for one loop */
+	/* Some implementations may flush with a single fice instruction */
+	cmpib,COND(>>=),n	15, %arg2, fioneloop2
+
+fioneloop1:
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	addib,COND(>)	-16, %arg2, fioneloop1
+	fice,m		%arg1(%sr4, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fisync	/* Predict branch taken */
+
+fioneloop2:
+	addib,COND(>)	-1, %arg2, fioneloop2	/* Outer loop count decr */
+	fice,m		%arg1(%sr4, %arg0)	/* Fice for one loop */
 
 fisync:
 	sync
@@ -240,8 +265,7 @@ ENTRY(flush_data_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
-	load32 		cache_info, %r1
+	load32		cache_info, %r1
 
 	/* Flush Data Cache */
 
@@ -249,20 +273,46 @@ ENTRY(flush_data_cache_local)
 	LDREG		DCACHE_STRIDE(%r1), %arg1
 	LDREG		DCACHE_COUNT(%r1), %arg2
 	LDREG		DCACHE_LOOP(%r1), %arg3
-	rsm		PSW_SM_I, %r22
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fdoneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fdsync	/* If loop < 0, do sync */
 
 fdmanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fdmanyloop	/* Adjusted inner loop decr */
-	fdce		%r0(%sr1, %arg0)
-	fdce,m		%arg1(%sr1, %arg0)	/* Last fdce and addr adjust */
+	fdce		%r0(%arg0)
+	fdce,m		%arg1(%arg0)	/* Last fdce and addr adjust */
 	movb,tr		%arg3, %r31, fdmanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fdsync	/* Outer loop decr */
 
 fdoneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fdoneloop	/* Outer loop count decr */
-	fdce,m		%arg1(%sr1, %arg0)	/* Fdce for one loop */
+	/* Some implementations may flush with a single fdce instruction */
+	cmpib,COND(>>=),n	15, %arg2, fdoneloop2
+
+fdoneloop1:
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	addib,COND(>)	-16, %arg2, fdoneloop1
+	fdce,m		%arg1(%arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fdsync	/* Predict branch taken */
+
+fdoneloop2:
+	addib,COND(>)	-1, %arg2, fdoneloop2	/* Outer loop count decr */
+	fdce,m		%arg1(%arg0)	/* Fdce for one loop */
 
 fdsync:
 	syncdma
@@ -277,7 +327,104 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+/* Macros to serialize TLB purge operations on SMP.  */
+
+	.macro	tlb_lock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock,%r1
+	ldo		R%pa_tlb_lock(%r1),\la
+	rsm		PSW_SM_I,\flags
+1:	LDCW		0(\la),\tmp
+	cmpib,<>,n	0,\tmp,3f
+2:	ldw		0(\la),\tmp
+	cmpb,<>		%r0,\tmp,1b
+	nop
+	b,n		2b
+3:
+#endif
+	.endm
+
+	.macro	tlb_unlock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldi		1,\tmp
+	stw		\tmp,0(\la)
+	mtsm		\flags
+#endif
+	.endm
+
+/* Clear page using kernel mapping.  */
+
+ENTRY(clear_page_asm)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+#ifdef CONFIG_64BIT
+
+	/* Unroll the loop.  */
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:
+	std		%r0, 0(%r26)
+	std		%r0, 8(%r26)
+	std		%r0, 16(%r26)
+	std		%r0, 24(%r26)
+	std		%r0, 32(%r26)
+	std		%r0, 40(%r26)
+	std		%r0, 48(%r26)
+	std		%r0, 56(%r26)
+	std		%r0, 64(%r26)
+	std		%r0, 72(%r26)
+	std		%r0, 80(%r26)
+	std		%r0, 88(%r26)
+	std		%r0, 96(%r26)
+	std		%r0, 104(%r26)
+	std		%r0, 112(%r26)
+	std		%r0, 120(%r26)
+
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
+
+#else
+
+	/*
+	 * Note that until (if) we start saving the full 64-bit register
+	 * values on interrupt, we can't use std on a 32 bit kernel.
+	 */
+	ldi		(PAGE_SIZE / 64), %r1
+
+1:
+	stw		%r0, 0(%r26)
+	stw		%r0, 4(%r26)
+	stw		%r0, 8(%r26)
+	stw		%r0, 12(%r26)
+	stw		%r0, 16(%r26)
+	stw		%r0, 20(%r26)
+	stw		%r0, 24(%r26)
+	stw		%r0, 28(%r26)
+	stw		%r0, 32(%r26)
+	stw		%r0, 36(%r26)
+	stw		%r0, 40(%r26)
+	stw		%r0, 44(%r26)
+	stw		%r0, 48(%r26)
+	stw		%r0, 52(%r26)
+	stw		%r0, 56(%r26)
+	stw		%r0, 60(%r26)
+
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		64(%r26), %r26
+#endif
+	bv		%r0(%r2)
+	nop
+	.exit
+
+	.procend
+ENDPROC(clear_page_asm)
+
+/* Copy page using kernel mapping.  */
+
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -285,18 +432,14 @@ ENTRY(copy_user_page_asm)
 #ifdef CONFIG_64BIT
 	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
 	 * Unroll the loop by hand and arrange insn appropriately.
-	 * GCC probably can do this just as well.
+	 * Prefetch doesn't improve performance on rp3440.
+	 * GCC probably can do this just as well...
 	 */
 
-	ldd		0(%r25), %r19
 	ldi		(PAGE_SIZE / 128), %r1
 
-	ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
-	ldw		128(%r25), %r0		/* prefetch 2 */
-
-1:	ldd		8(%r25), %r20
-	ldw		192(%r25), %r0		/* prefetch 3 */
-	ldw		256(%r25), %r0		/* prefetch 4 */
+1:	ldd		0(%r25), %r19
+	ldd		8(%r25), %r20
 
 	ldd		16(%r25), %r21
 	ldd		24(%r25), %r22
@@ -330,20 +473,16 @@ ENTRY(copy_user_page_asm)
 
 	ldd		112(%r25), %r21
 	ldd		120(%r25), %r22
+	ldo		128(%r25), %r25
 	std		%r19, 96(%r26)
 	std		%r20, 104(%r26)
 
-	ldo		128(%r25), %r25
 	std		%r21, 112(%r26)
 	std		%r22, 120(%r26)
-	ldo		128(%r26), %r26
 
-	/* conditional branches nullify on forward taken branch, and on
-	 * non-taken backward branch. Note that .+4 is a backwards branch.
-	 * The ldd should only get executed if the branch is taken.
-	 */
-	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
-	ldd		0(%r25), %r19		/* start next loads */
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
 
 #else
 
@@ -399,7 +538,7 @@ ENTRY(copy_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,8 +561,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
-
 	/*
 	 * We can't do this since copy_user_page is used to bring in
 	 * file data that might have instructions. Since the data would
@@ -435,6 +572,7 @@ ENDPROC(copy_user_page_asm)
 	 * use it if more information is passed into copy_user_page().
 	 * Have to do some measurements to see if it is worthwhile to
 	 * lobby for such a change.
+	 *
 	 */
 
 ENTRY(copy_user_page_asm)
@@ -442,16 +580,21 @@ ENTRY(copy_user_page_asm)
 	.callinfo NO_CALLS
 	.entry
 
+	/* Convert virtual `to' and `from' addresses to physical addresses.
+	   Move `from' physical address to non shadowed register.  */
 	ldil		L%(__PAGE_OFFSET), %r1
 	sub		%r26, %r1, %r26
-	sub		%r25, %r1, %r23		/* move physical addr into non shadowed reg */
+	sub		%r25, %r1, %r23
 
 	ldil		L%(TMPALIAS_MAP_START), %r28
 	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
-	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+#endif
+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
+	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
@@ -466,10 +609,76 @@ ENTRY(copy_user_page_asm)
 
 	/* Purge any old translations */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+	pdtlb,l		0(%r29)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
-	ldi		64, %r1
+#ifdef CONFIG_64BIT
+	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
+	 * Unroll the loop by hand and arrange insn appropriately.
+	 * GCC probably can do this just as well.
+	 */
+
+	ldd		0(%r29), %r19
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:	ldd		8(%r29), %r20
+
+	ldd		16(%r29), %r21
+	ldd		24(%r29), %r22
+	std		%r19, 0(%r28)
+	std		%r20, 8(%r28)
+
+	ldd		32(%r29), %r19
+	ldd		40(%r29), %r20
+	std		%r21, 16(%r28)
+	std		%r22, 24(%r28)
+
+	ldd		48(%r29), %r21
+	ldd		56(%r29), %r22
+	std		%r19, 32(%r28)
+	std		%r20, 40(%r28)
+
+	ldd		64(%r29), %r19
+	ldd		72(%r29), %r20
+	std		%r21, 48(%r28)
+	std		%r22, 56(%r28)
+
+	ldd		80(%r29), %r21
+	ldd		88(%r29), %r22
+	std		%r19, 64(%r28)
+	std		%r20, 72(%r28)
+
+	ldd		 96(%r29), %r19
+	ldd		104(%r29), %r20
+	std		%r21, 80(%r28)
+	std		%r22, 88(%r28)
+
+	ldd		112(%r29), %r21
+	ldd		120(%r29), %r22
+	std		%r19, 96(%r28)
+	std		%r20, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r21, 112(%r28)
+	std		%r22, 120(%r28)
+	ldo		128(%r28), %r28
+
+	/* conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 * The ldd should only get executed if the branch is taken.
+	 */
+	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
+	ldd		0(%r29), %r19		/* start next loads */
+
+#else
+	ldi		(PAGE_SIZE / 64), %r1
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,9 +689,7 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
+1:	ldw		0(%r29), %r19
 	ldw		4(%r29), %r20
 	ldw		8(%r29), %r21
 	ldw		12(%r29), %r22
@@ -515,8 +722,10 @@ ENTRY(copy_user_page_asm)
 	stw		%r21, 56(%r28)
 	stw		%r22, 60(%r28)
 	ldo		64(%r28), %r28
+
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
+#endif
 
 	bv		%r0(%r2)
 	nop
@@ -524,9 +733,8 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -550,7 +758,13 @@ ENTRY(__clear_user_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
@@ -580,8 +794,7 @@ ENTRY(__clear_user_page_asm)
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
-	stw		%r0, 0(%r28)
+1:	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
 	stw		%r0, 12(%r28)
@@ -606,7 +819,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_dcache_page_asm)
 	.proc
@@ -630,7 +843,13 @@ ENTRY(flush_dcache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), %r1
@@ -663,8 +882,17 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		%r1(%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pdtlb		(%r25)
+	nop
 	.exit
 
 	.procend
@@ -692,7 +920,13 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
-	pitlb		(%sr4,%r28)
+#ifdef CONFIG_PA20
+	pitlb,l         %r0(%sr4,%r28)
+#else
+	tlb_lock        %r20,%r21,%r22
+	pitlb           (%sr4,%r28)
+	tlb_unlock      %r20,%r21,%r22
+#endif
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -727,8 +961,17 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r1(%sr4,%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pitlb,l         %r0(%sr4,%r25)
+#else
+	tlb_lock        %r20,%r21,%r22
+	pitlb           (%sr4,%r25)
+	tlb_unlock      %r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pitlb		(%sr4,%r25)
+	nop
 	.exit
 
 	.procend
@@ -777,7 +1020,7 @@ ENTRY(flush_kernel_dcache_page_asm)
 	.procend
 ENDPROC(flush_kernel_dcache_page_asm)
 
-ENTRY(purge_kernel_dcache_page)
+ENTRY(purge_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -817,7 +1060,7 @@ ENTRY(purge_kernel_dcache_page)
 	.exit
 
 	.procend
-ENDPROC(purge_kernel_dcache_page)
+ENDPROC(purge_kernel_dcache_page_asm)
 
 ENTRY(flush_user_dcache_range_asm)
 	.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index ceec85d..6795dc6 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -157,5 +157,6 @@ extern void _mcount(void);
 EXPORT_SYMBOL(_mcount);
 #endif
 
-/* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+/* from pacache.S -- needed for clear/copy_page */
+EXPORT_SYMBOL(clear_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d4b94b3..8c6b6b6 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -48,6 +48,7 @@
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
 #include <linux/uaccess.h>
+#include <linux/rcupdate.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -69,8 +70,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			barrier();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 		check_pgt_cache();
 	}
@@ -309,7 +312,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 		cregs->ksp = (unsigned long)stack
 			+ (pregs->gr[21] & (THREAD_SIZE - 1));
 		cregs->gr[30] = usp;
-		if (p->personality == PER_HPUX) {
+		if (personality(p->personality) == PER_HPUX) {
 #ifdef CONFIG_HPUX
 			cregs->kpc = (unsigned long) &hpux_child_return;
 #else
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 594459b..56e0087 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -308,7 +308,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #if DEBUG_SIG
 	/* Assert that we're flushing in the correct space... */
 	{
-		int sid;
+		unsigned long sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
 		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
 		       sid, frame->tramp);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..b3032f9 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -92,11 +92,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
@@ -225,12 +226,12 @@ long parisc_personality(unsigned long personality)
 	long err;
 
 	if (personality(current->personality) == PER_LINUX32
-	    && personality == PER_LINUX)
-		personality = PER_LINUX32;
+	    && personality(personality) == PER_LINUX)
+		personality = (personality & ~PER_MASK) | PER_LINUX32;
 
 	err = sys_personality(personality);
-	if (err == PER_LINUX32)
-		err = PER_LINUX;
+	if (personality(err) == PER_LINUX32)
+		err = (err & ~PER_MASK) | PER_LINUX;
 
 	return err;
 }
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 82a52b2..837c602 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -180,9 +180,10 @@ linux_gateway_entry:
 
 	/* Are we being ptraced? */
 	mfctl	%cr30, %r1
-	LDREG	TI_TASK(%r1),%r1
-	ldw	TASK_PTRACE(%r1), %r1
-	bb,<,n	%r1,31,.Ltracesys
+	LDREG   TI_FLAGS(%r1),%r1
+	ldi	(_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_BLOCKSTEP), %r19
+	and,COND(=) %r19, %r1, %r0
+	b,n	.Ltracesys
 	
 	/* Note!  We cannot use the syscall table that is mapped
 	nearby since the gateway page is mapped execute-only. */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 70e105d..4a24ba7 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -77,7 +77,7 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 6) < cpt) {
+	if ((cycles_elapsed >> 7) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
diff --git a/arch/parisc/math-emu/cnv_float.h b/arch/parisc/math-emu/cnv_float.h
index 9071e09..37299c7 100644
--- a/arch/parisc/math-emu/cnv_float.h
+++ b/arch/parisc/math-emu/cnv_float.h
@@ -347,16 +347,15 @@
     Sgl_isinexact_to_fix(sgl_value,exponent)
 
 #define Duint_from_sgl_mantissa(sgl_value,exponent,dresultA,dresultB)	\
-  {Sall(sgl_value) <<= SGL_EXP_LENGTH;  /*  left-justify  */		\
+  {unsigned int val = Sall(sgl_value) << SGL_EXP_LENGTH;		\
     if (exponent <= 31) {						\
     	Dintp1(dresultA) = 0;						\
-    	Dintp2(dresultB) = (unsigned)Sall(sgl_value) >> (31 - exponent); \
+    	Dintp2(dresultB) = val >> (31 - exponent);			\
     }									\
     else {								\
-    	Dintp1(dresultA) = Sall(sgl_value) >> (63 - exponent);		\
-    	Dintp2(dresultB) = Sall(sgl_value) << (exponent - 31);		\
+    	Dintp1(dresultA) = val >> (63 - exponent);			\
+    	Dintp2(dresultB) = exponent <= 62 ? val << (exponent - 31) : 0;	\
     }									\
-    Sall(sgl_value) >>= SGL_EXP_LENGTH;  /* return to original */	\
   }
 
 #define Duint_setzero(dresultA,dresultB) 	\
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 18162ce..524bf5a 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -175,10 +175,12 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	struct mm_struct *mm = tsk->mm;
 	unsigned long acc_type;
 	int fault;
+	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	if (in_atomic() || !mm)
 		goto no_context;
 
+retry:
 	down_read(&mm->mmap_sem);
 	vma = find_vma_prev(mm, address, &prev_vma);
 	if (!vma || address < vma->vm_start)
@@ -201,7 +203,12 @@ good_area:
 	 * fault.
 	 */
 
-	fault = handle_mm_fault(mm, vma, address, (acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0);
+	fault = handle_mm_fault(mm, vma, address,
+		flags | ((acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0));
+
+	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+		return;
+
 	if (unlikely(fault & VM_FAULT_ERROR)) {
 		/*
 		 * We hit a shared mapping outside of the file, or some
@@ -214,10 +221,22 @@ good_area:
 			goto bad_area;
 		BUG();
 	}
-	if (fault & VM_FAULT_MAJOR)
-		current->maj_flt++;
-	else
-		current->min_flt++;
+	if (flags & FAULT_FLAG_ALLOW_RETRY) {
+		if (fault & VM_FAULT_MAJOR)
+			current->maj_flt++;
+		else
+			current->min_flt++;
+		if (fault & VM_FAULT_RETRY) {
+			flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+			/* No need to up_read(&mm->mmap_sem) as we would
+			 * have already released it in __lock_page_or_retry
+			 * in mm/filemap.c.
+			 */
+
+			goto retry;
+		}
+	}
 	up_read(&mm->mmap_sem);
 	return;
 
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 432d4bb..d6c3472 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -477,14 +477,12 @@ dino_card_setup(struct pci_bus *bus, void __iomem *base_addr)
 	if (ccio_allocate_resource(dino_dev->hba.dev, res, _8MB,
 				F_EXTEND(0xf0000000UL) | _8MB,
 				F_EXTEND(0xffffffffUL) &~ _8MB, _8MB) < 0) {
-		struct list_head *ln, *tmp_ln;
+		struct pci_dev *dev, *tmp;
 
 		printk(KERN_ERR "Dino: cannot attach bus %s\n",
 		       dev_name(bus->bridge));
 		/* kill the bus, we can't do anything with it */
-		list_for_each_safe(ln, tmp_ln, &bus->devices) {
-			struct pci_dev *dev = pci_dev_b(ln);
-
+		list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
 			list_del(&dev->bus_list);
 		}
 			
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 052fa23..5208d2f 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -629,7 +629,7 @@ truncate_pat_collision(struct resource *root, struct resource *new)
 static void
 lba_fixup_bus(struct pci_bus *bus)
 {
-	struct list_head *ln;
+	struct pci_dev *dev;
 #ifdef FBB_SUPPORT
 	u16 status;
 #endif
@@ -710,9 +710,8 @@ lba_fixup_bus(struct pci_bus *bus)
 
 	}
 
-	list_for_each(ln, &bus->devices) {
+	list_for_each_entry(dev, &bus->devices, bus_list) {
 		int i;
-		struct pci_dev *dev = pci_dev_b(ln);
 
 		DBG("lba_fixup_bus() %s\n", pci_name(dev));
 
@@ -770,7 +769,7 @@ lba_fixup_bus(struct pci_bus *bus)
 	}
 
 	/* Lastly enable FBB/PERR/SERR on all devices too */
-	list_for_each(ln, &bus->devices) {
+	list_for_each_entry(dev, &bus->devices, bus_list) {
 		(void) pci_read_config_word(dev, PCI_COMMAND, &status);
 		status |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR | fbb_enable;
 		(void) pci_write_config_word(dev, PCI_COMMAND, status);
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index eebd6d5..078a593 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -581,6 +581,7 @@ out_eoi:
 void
 handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 {
+	struct irqaction *action;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	kstat_incr_irqs_this_cpu(irq, desc);
@@ -588,7 +589,9 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 	if (chip->irq_ack)
 		chip->irq_ack(&desc->irq_data);
 
-	handle_irq_event_percpu(desc, desc->action);
+	action = desc->action;
+	if (action)
+		handle_irq_event_percpu(desc, action);
 
 	if (chip->irq_eoi)
 		chip->irq_eoi(&desc->irq_data);
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 671f959..315ec22 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -250,7 +250,7 @@ restart:
 		}
 		h++;
 		pending >>= 1;
-	} while (pending);
+	} while (pending && h >= (struct softirq_action *)0x1000);
 
 	local_irq_disable();
 

--Apple-Mail-1--871605220--

From - Thu Nov 08 21:08:37 2018
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: parisc: orphaned asm/compat_signal.h file?
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To: John David Anglin <dave.anglin@bell.net>
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On Sat, Sep 29, 2012 at 10:24 PM, John David Anglin
<dave.anglin@bell.net> wrote:
> Had to remove the kvm_para.h hunk because I hit this issue:
> https://lkml.org/lkml/2012/6/13/226
> Assume this is now fixed.

Unfortunately not :-(

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: what's parisc execve_wrapper doing in the end?
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To: Al Viro <viro@ZenIV.linux.org.uk>
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[cc: parisc list]
On Thu, 2012-10-04 at 06:13 +0100, Al Viro wrote:
> On Thu, Oct 04, 2012 at 05:51:50AM +0100, Al Viro wrote:
> > I'm really confused by that one:
> >         /* If exec succeeded we need to load the args */
> > 
> >         ldo -1024(%r0),%r1
> >         cmpb,>>= %r28,%r1,error_\execve
> >         copy %r2,%r19
> > 
> > error_\execve:
> >         bv %r0(%r19)
> > 
> > Just what is going on there?  That cmpb is non-nullifying, right?  So this
> > assignment to %r2 happens whether condition is true or false.  And AFAICS
> > IAOQ_Next is set to error_\execve in both cases.  So what the hell
> > is that comparison for (and the comment about)?  Why not simply return
> > via bv %r0(%r2) and be done with that?  It had been done that way since
> > the initial parisc merge circa 2.4.0-test*...
> 
> FWIW, I suspect that hpux_execve_wrapper might have something to do with it -
> there we have
>         comb,>>= %r28,%r1,exec_error
>         copy %r2,%r19
>         ldo     -TASK_SZ_ALGN-64(%r30),%r1         ;! get task ptr
>         LDREG   TASK_PT_GR26(%r1),%r26
>         LDREG   TASK_PT_GR25(%r1),%r25
>         LDREG   TASK_PT_GR24(%r1),%r24
>         LDREG   TASK_PT_GR23(%r1),%r23
>         copy %r0,%r2    /* Flag to syscall_exit not to clear args */
> 
> exec_error:
> instead and that at least makes some sense (even though I don't see
> why syscall_exit would fail to restore them or would check %r2).  Is
> the execve_wrapper a rudiment of something similar?  It's beyond the
> history observable in the mainline, unfortunately... ;-/

It's plausible.  I just verified the theory that the branch is redundant
by successfully booting with this patch applied.

James

---

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 18670a0..d1da93f 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1893,15 +1893,7 @@ ENDPROC(sys_vfork_wrapper)
 
 	ldo -FRAME_SIZE(%r30),%r30
 	LDREG -RP_OFFSET(%r30),%r2
-
-	/* If exec succeeded we need to load the args */
-
-	ldo -1024(%r0),%r1
-	cmpb,>>= %r28,%r1,error_\execve
-	copy %r2,%r19

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Subject: Re: what's parisc execve_wrapper doing in the end?
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[parisc list added just in case I get this wrong]
On Thu, 2012-10-04 at 05:51 +0100, Al Viro wrote:
> I'm really confused by that one:
>         /* If exec succeeded we need to load the args */
> 
>         ldo -1024(%r0),%r1
>         cmpb,>>= %r28,%r1,error_\execve
>         copy %r2,%r19
> 
> error_\execve:
>         bv %r0(%r19)
> 
> Just what is going on there?  That cmpb is non-nullifying, right? 

Right, it would have to have a ,n to nullify the following instruction,
so the copy is executed in both branches.

The compare and branch clearly has no effect, so it's a vestige of
something, I think.

>  So this
> assignment to %r2 happens whether condition is true or false.  And AFAICS
> IAOQ_Next is set to error_\execve in both cases.  So what the hell
> is that comparison for (and the comment about)?  Why not simply return
> via bv %r0(%r2) and be done with that?  It had been done that way since
> the initial parisc merge circa 2.4.0-test*...

Right, but no idea what it's a vestige of.

James


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Subject: Re: what's parisc execve_wrapper doing in the end?
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On Thu, Oct 4, 2012 at 8:57 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
>> Unless I'm missing something really subtle, it looks like HPUX compat had
>> been very noticably broken since at least 2002.  Comments?
>
> I think it probably has.  I don't believe there's anyone left with hpux
> binaries actually checking it.

Was the HPUX support ever completed?

I had HPUX/Linux dual-boot on one of my systems and I was never able
to run an HPUX binary correctly.

Someone with the time and inclination is all that is missing to
cleanup the rotten HPUX bits.

There is no need to keep any of it around, that's what version control is for.

Cheers,
Carlos.
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On Thu, Oct 04, 2012 at 09:30:16AM -0400, Carlos O'Donell wrote:
> On Thu, Oct 4, 2012 at 8:57 AM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> >> Unless I'm missing something really subtle, it looks like HPUX compat had
> >> been very noticably broken since at least 2002.  Comments?
> >
> > I think it probably has.  I don't believe there's anyone left with hpux
> > binaries actually checking it.
> 
> Was the HPUX support ever completed?
> 
> I had HPUX/Linux dual-boot on one of my systems and I was never able
> to run an HPUX binary correctly.
> 
> Someone with the time and inclination is all that is missing to
> cleanup the rotten HPUX bits.
> 
> There is no need to keep any of it around, that's what version control is for.

FWIW, parisc seems to be the last architecture to keep such thing - sparc
and mips had dropped SunOS/Solaris/IRIX compat, iBCS* is long-dead (and hadn't
been in mainline kernel anyway).  Alpha might still be able to run some OSF
binaries, but there the situation is different - no alternative syscall
entry codepath, Linux just uses the same ABI and shares syscall numbers
where possible...
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From - Thu Nov 08 21:08:37 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: what's parisc execve_wrapper doing in the end?
Date: Thu, 04 Oct 2012 13:57:54 +0100
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To: Al Viro <viro@ZenIV.linux.org.uk>
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On Thu, 2012-10-04 at 13:22 +0100, Al Viro wrote:
> On Thu, Oct 04, 2012 at 11:02:16AM +0100, James Bottomley wrote:
> 
> > It's plausible.  I just verified the theory that the branch is redundant
> > by successfully booting with this patch applied.
> 
> Somewhat related question: does CONFIG_HPUX work at all?

I don't believe so.  It's been bitrotting for some time.

>   What we have there
> is this:
>         mfctl   %cr30,%r1
>         xor     %r1,%r30,%r30                   /* ye olde xor trick */
>         xor     %r1,%r30,%r1
>         xor     %r1,%r30,%r30
>         ldo     TASK_SZ_ALGN+FRAME_SIZE(%r30),%r30  /* set up kernel stack */
> followed by saving registers into &((struct task_struct *)cr30)->thread.regs.
> cr30 contains something very different, though - struct thread_info *.
> Had been that way since 2002 or so.  And after we'd been finished with
> syscall, we'll get to hpux_syscall_exit, tweak r22/r28 a bit and
> sod off to syscall_exit.  Which does
>         mfctl     %cr30, %r1
>         LDREG     TI_TASK(%r1),%r1
> and eventually restores the values of registers saved in
> &(struct task_struct)r1->thread.regs.  Except that here the value of r1 is
> ((struct thread_info *)cr30)->task, not cr30 itself.  Which matches what we
> have in current.h (and do_fork(), etc.), but not what we'd done when we
> entered the syscall.  IOW, the values we restore will have nothing to do
> with what we saved.
> 
> Unless I'm missing something really subtle, it looks like HPUX compat had
> been very noticably broken since at least 2002.  Comments?

I think it probably has.  I don't believe there's anyone left with hpux
binaries actually checking it.

James


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From - Thu Nov 08 21:08:37 2018
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From: Al Viro <viro@ZenIV.linux.org.uk>
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Subject: Re: what's parisc execve_wrapper doing in the end?
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Thu, Oct 04, 2012 at 11:02:16AM +0100, James Bottomley wrote:

> It's plausible.  I just verified the theory that the branch is redundant
> by successfully booting with this patch applied.

Somewhat related question: does CONFIG_HPUX work at all?  What we have there
is this:
        mfctl   %cr30,%r1
        xor     %r1,%r30,%r30                   /* ye olde xor trick */
        xor     %r1,%r30,%r1
        xor     %r1,%r30,%r30
        ldo     TASK_SZ_ALGN+FRAME_SIZE(%r30),%r30  /* set up kernel stack */
followed by saving registers into &((struct task_struct *)cr30)->thread.regs.
cr30 contains something very different, though - struct thread_info *.
Had been that way since 2002 or so.  And after we'd been finished with
syscall, we'll get to hpux_syscall_exit, tweak r22/r28 a bit and
sod off to syscall_exit.  Which does
        mfctl     %cr30, %r1
        LDREG     TI_TASK(%r1),%r1
and eventually restores the values of registers saved in
&(struct task_struct)r1->thread.regs.  Except that here the value of r1 is
((struct thread_info *)cr30)->task, not cr30 itself.  Which matches what we
have in current.h (and do_fork(), etc.), but not what we'd done when we
entered the syscall.  IOW, the values we restore will have nothing to do
with what we saved.

Unless I'm missing something really subtle, it looks like HPUX compat had
been very noticably broken since at least 2002.  Comments?
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From - Thu Nov 08 21:08:37 2018
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From: David Howells <dhowells@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] Disintegrate UAPI for parisc
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Can you merge the following branch into the parisc tree please.

This is to complete part of the UAPI disintegration for which the preparatory
patches were pulled recently.

Note that there are some fixup patches which are at the base of the branch
aimed at you, plus all arches get the asm-generic branch merged in too.

The following changes since commit 612a9aab56a93533e76e3ad91642db7033e03b69:

  Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux (2012-10-03 23:29:23 -0700)

are available in the git repository at:


  git://git.infradead.org/users/dhowells/linux-headers.git disintegrate-parisc

for you to fetch changes up to 36141239e2e08d847531d4d81d5e82c10835f2d5:

  UAPI: (Scripted) Disintegrate arch/parisc/include/asm (2012-10-04 18:21:12 +0100)

----------------------------------------------------------------
David Howells (6):
      UAPI: Fix the guards on various asm/unistd.h files
      UAPI: Split compound conditionals containing __KERNEL__ in Arm64
      Merge remote-tracking branch 'c6x/for-linux-next' into uapi-prep
      UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
      UAPI: (Scripted) Disintegrate include/asm-generic
      UAPI: (Scripted) Disintegrate arch/parisc/include/asm

Mark Salter (2):
      c6x: make dsk6455 the default config
      c6x: remove c6x signal.h

 arch/arm64/include/asm/hwcap.h                   |   4 +-
 arch/arm64/include/asm/stat.h                    |   4 +-
 arch/arm64/include/asm/unistd.h                  |   8 +-
 arch/arm64/include/asm/unistd32.h                |   4 -
 arch/c6x/Makefile                                |   2 +
 arch/c6x/include/asm/Kbuild                      |   1 +
 arch/c6x/include/asm/signal.h                    |  17 -
 arch/c6x/include/asm/unistd.h                    |   4 -
 arch/hexagon/include/asm/unistd.h                |   5 -
 arch/openrisc/include/asm/unistd.h               |   5 -
 arch/parisc/include/asm/Kbuild                   |   2 -
 arch/parisc/include/asm/pdc.h                    | 423 +----------
 arch/parisc/include/asm/ptrace.h                 |  46 +-
 arch/parisc/include/asm/signal.h                 | 113 +--
 arch/parisc/include/asm/termios.h                |  41 +-
 arch/parisc/include/asm/unistd.h                 | 835 +--------------------
 arch/parisc/include/uapi/asm/Kbuild              |  32 +
 arch/parisc/include/{ => uapi}/asm/auxvec.h      |   0
 arch/parisc/include/{ => uapi}/asm/bitsperlong.h |   0
 arch/parisc/include/{ => uapi}/asm/byteorder.h   |   0
 arch/parisc/include/{ => uapi}/asm/errno.h       |   0
 arch/parisc/include/{ => uapi}/asm/fcntl.h       |   0
 arch/parisc/include/{ => uapi}/asm/ioctl.h       |   0
 arch/parisc/include/{ => uapi}/asm/ioctls.h      |   0
 arch/parisc/include/{ => uapi}/asm/ipcbuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/kvm_para.h    |   0
 arch/parisc/include/{ => uapi}/asm/mman.h        |   0
 arch/parisc/include/{ => uapi}/asm/msgbuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/param.h       |   0
 arch/parisc/include/uapi/asm/pdc.h               | 427 +++++++++++
 arch/parisc/include/{ => uapi}/asm/poll.h        |   0
 arch/parisc/include/{ => uapi}/asm/posix_types.h |   0
 arch/parisc/include/uapi/asm/ptrace.h            |  47 ++
 arch/parisc/include/{ => uapi}/asm/resource.h    |   0
 arch/parisc/include/{ => uapi}/asm/sembuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/setup.h       |   0
 arch/parisc/include/{ => uapi}/asm/shmbuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/sigcontext.h  |   0
 arch/parisc/include/{ => uapi}/asm/siginfo.h     |   0
 arch/parisc/include/uapi/asm/signal.h            | 118 +++
 arch/parisc/include/{ => uapi}/asm/socket.h      |   0
 arch/parisc/include/{ => uapi}/asm/sockios.h     |   0
 arch/parisc/include/{ => uapi}/asm/stat.h        |   0
 arch/parisc/include/{ => uapi}/asm/statfs.h      |   0
 arch/parisc/include/{ => uapi}/asm/swab.h        |   0
 arch/parisc/include/{ => uapi}/asm/termbits.h    |   0
 arch/parisc/include/uapi/asm/termios.h           |  43 ++
 arch/parisc/include/{ => uapi}/asm/types.h       |   0
 arch/parisc/include/uapi/asm/unistd.h            | 837 +++++++++++++++++++++
 arch/score/include/asm/unistd.h                  |   5 -
 arch/tile/include/asm/unistd.h                   |   5 -
 arch/unicore32/include/asm/unistd.h              |   4 -
 include/asm-generic/Kbuild                       |  35 -
 include/asm-generic/bitsperlong.h                |  13 +-
 include/asm-generic/int-l64.h                    |  26 +-
 include/asm-generic/int-ll64.h                   |  31 +-
 include/asm-generic/ioctl.h                      |  95 +--
 include/asm-generic/kvm_para.h                   |   5 +-
 include/asm-generic/param.h                      |  17 +-
 include/asm-generic/resource.h                   |  66 +-
 include/asm-generic/siginfo.h                    | 297 +-------
 include/asm-generic/signal.h                     | 117 +--
 include/asm-generic/statfs.h                     |  81 +-
 include/asm-generic/termios.h                    |  49 +-
 include/asm-generic/unistd.h                     | 911 +----------------------
 include/linux/Kbuild                             |   9 +-
 include/uapi/asm-generic/Kbuild                  |  35 +
 include/{ => uapi}/asm-generic/auxvec.h          |   0
 include/uapi/asm-generic/bitsperlong.h           |  15 +
 include/{ => uapi}/asm-generic/errno-base.h      |   0
 include/{ => uapi}/asm-generic/errno.h           |   0
 include/{ => uapi}/asm-generic/fcntl.h           |   0
 include/uapi/asm-generic/int-l64.h               |  34 +
 include/uapi/asm-generic/int-ll64.h              |  39 +
 include/uapi/asm-generic/ioctl.h                 |  98 +++
 include/{ => uapi}/asm-generic/ioctls.h          |   0
 include/{ => uapi}/asm-generic/ipcbuf.h          |   0
 include/{ => uapi}/asm-generic/mman-common.h     |   0
 include/{ => uapi}/asm-generic/mman.h            |   0
 include/{ => uapi}/asm-generic/msgbuf.h          |   0
 include/uapi/asm-generic/param.h                 |  19 +
 include/{ => uapi}/asm-generic/poll.h            |   0
 include/{ => uapi}/asm-generic/posix_types.h     |   0
 include/uapi/asm-generic/resource.h              |  68 ++
 include/{ => uapi}/asm-generic/sembuf.h          |   0
 include/{ => uapi}/asm-generic/setup.h           |   0
 include/{ => uapi}/asm-generic/shmbuf.h          |   0
 include/{ => uapi}/asm-generic/shmparam.h        |   0
 include/uapi/asm-generic/siginfo.h               | 298 ++++++++
 include/{ => uapi}/asm-generic/signal-defs.h     |   0
 include/uapi/asm-generic/signal.h                | 123 +++
 include/{ => uapi}/asm-generic/socket.h          |   0
 include/{ => uapi}/asm-generic/sockios.h         |   0
 include/{ => uapi}/asm-generic/stat.h            |   0
 include/uapi/asm-generic/statfs.h                |  83 +++
 include/{ => uapi}/asm-generic/swab.h            |   0
 include/{ => uapi}/asm-generic/termbits.h        |   0
 include/uapi/asm-generic/termios.h               |  50 ++
 include/{ => uapi}/asm-generic/types.h           |   0
 include/{ => uapi}/asm-generic/ucontext.h        |   0
 include/uapi/asm-generic/unistd.h                | 902 ++++++++++++++++++++++
 security/apparmor/Makefile                       |   2 +-
 102 files changed, 3304 insertions(+), 3246 deletions(-)
 delete mode 100644 arch/c6x/include/asm/signal.h
 rename arch/parisc/include/{ => uapi}/asm/auxvec.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/bitsperlong.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/byteorder.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/errno.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/fcntl.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/ioctl.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/ioctls.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/ipcbuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/kvm_para.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/mman.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/msgbuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/param.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/pdc.h
 rename arch/parisc/include/{ => uapi}/asm/poll.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/posix_types.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/ptrace.h
 rename arch/parisc/include/{ => uapi}/asm/resource.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/sembuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/setup.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/shmbuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/sigcontext.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/siginfo.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/signal.h
 rename arch/parisc/include/{ => uapi}/asm/socket.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/sockios.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/stat.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/statfs.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/swab.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/termbits.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/termios.h
 rename arch/parisc/include/{ => uapi}/asm/types.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/unistd.h
 rename include/{ => uapi}/asm-generic/auxvec.h (100%)
 create mode 100644 include/uapi/asm-generic/bitsperlong.h
 rename include/{ => uapi}/asm-generic/errno-base.h (100%)
 rename include/{ => uapi}/asm-generic/errno.h (100%)
 rename include/{ => uapi}/asm-generic/fcntl.h (100%)
 create mode 100644 include/uapi/asm-generic/int-l64.h
 create mode 100644 include/uapi/asm-generic/int-ll64.h
 create mode 100644 include/uapi/asm-generic/ioctl.h
 rename include/{ => uapi}/asm-generic/ioctls.h (100%)
 rename include/{ => uapi}/asm-generic/ipcbuf.h (100%)
 create mode 100644 include/uapi/asm-generic/kvm_para.h
 rename include/{ => uapi}/asm-generic/mman-common.h (100%)
 rename include/{ => uapi}/asm-generic/mman.h (100%)
 rename include/{ => uapi}/asm-generic/msgbuf.h (100%)
 create mode 100644 include/uapi/asm-generic/param.h
 rename include/{ => uapi}/asm-generic/poll.h (100%)
 rename include/{ => uapi}/asm-generic/posix_types.h (100%)
 create mode 100644 include/uapi/asm-generic/resource.h
 rename include/{ => uapi}/asm-generic/sembuf.h (100%)
 rename include/{ => uapi}/asm-generic/setup.h (100%)
 rename include/{ => uapi}/asm-generic/shmbuf.h (100%)
 rename include/{ => uapi}/asm-generic/shmparam.h (100%)
 create mode 100644 include/uapi/asm-generic/siginfo.h
 rename include/{ => uapi}/asm-generic/signal-defs.h (100%)
 create mode 100644 include/uapi/asm-generic/signal.h
 rename include/{ => uapi}/asm-generic/socket.h (100%)
 rename include/{ => uapi}/asm-generic/sockios.h (100%)
 rename include/{ => uapi}/asm-generic/stat.h (100%)
 create mode 100644 include/uapi/asm-generic/statfs.h
 rename include/{ => uapi}/asm-generic/swab.h (100%)
 rename include/{ => uapi}/asm-generic/termbits.h (100%)
 create mode 100644 include/uapi/asm-generic/termios.h
 rename include/{ => uapi}/asm-generic/types.h (100%)
 rename include/{ => uapi}/asm-generic/ucontext.h (100%)
 create mode 100644 include/uapi/asm-generic/unistd.h
.
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From - Thu Nov 08 21:08:37 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: what's parisc execve_wrapper doing in the end?
Date: Thu, 4 Oct 2012 20:00:18 -0400
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Cc: Carlos O'Donell <carlos@systemhalted.org>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	Parisc List <linux-parisc@vger.kernel.org>
To: Al Viro <viro@ZenIV.linux.org.uk>
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On 4-Oct-12, at 10:07 AM, Al Viro wrote:

> On Thu, Oct 04, 2012 at 09:30:16AM -0400, Carlos O'Donell wrote:
>> On Thu, Oct 4, 2012 at 8:57 AM, James Bottomley
>> <James.Bottomley@hansenpartnership.com> wrote:
>>>> Unless I'm missing something really subtle, it looks like HPUX  
>>>> compat had
>>>> been very noticably broken since at least 2002.  Comments?
>>>
>>> I think it probably has.  I don't believe there's anyone left with  
>>> hpux
>>> binaries actually checking it.
>>
>> Was the HPUX support ever completed?
>>
>> I had HPUX/Linux dual-boot on one of my systems and I was never able
>> to run an HPUX binary correctly.
>>
>> Someone with the time and inclination is all that is missing to
>> cleanup the rotten HPUX bits.
>>
>> There is no need to keep any of it around, that's what version  
>> control is for.
>
> FWIW, parisc seems to be the last architecture to keep such thing -  
> sparc
> and mips had dropped SunOS/Solaris/IRIX compat, iBCS* is long-dead  
> (and hadn't
> been in mainline kernel anyway).  Alpha might still be able to run  
> some OSF
> binaries, but there the situation is different - no alternative  
> syscall
> entry codepath, Linux just uses the same ABI and shares syscall  
> numbers
> where possible...


I believe the HP-UX support should be removed.

I think it unlikely that anyone will complete the HP-UX  
implementation.  For example,
HP-UX has a 64-bit context for 32-bit applications when running a wide  
PA2.0
kernel.  Linux only has a 32-bit context.  As a result, it's not  
possible to exploit the 64-bit
registers and instructions in Linux.  We also don't have a 64-bit  
linux port, so 64-bit HP-UX
support is impossible.  There are quite a few other issues.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:08:37 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [GIT PULL] Disintegrate UAPI for parisc
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To: David Howells <dhowells@redhat.com>
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On Thu, 2012-10-04 at 20:51 +0100, David Howells wrote:
> Can you merge the following branch into the parisc tree please.

Just to confirm: this is for testing purposes only ... you'll be sending
the pull requests to Linus?  Because otherwise I'll need a signed pull
request from you.

I should be able to get around to testing this after I've looked at some
of the signal/kernel_thread/execve patches for Al Viro.

James


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From - Thu Nov 08 21:08:37 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: what's parisc execve_wrapper doing in the end?
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I tried out the code at

git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal.git
experimental-kernel_thread

and it gives me this panic on boot.

James

---

PALO(F0) partition contains:
PALO is formatted EXT2/3
Command line for kernel: ' root=/dev/sda3 panic=5 console=ttyS1 palo_kernel=1/vmlinux-test'
Selected kernel: /vmlinux-test from partition 1
Selected ramdisk: /initrd.img-test from partition 1
ELF64 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 5984256 mediaptr 0x1000
Segment 1 load 00741cf0 size 541128 mediaptr 0x5b6cf0
Segment 2 load 007c8000 size 190432 mediaptr 0x63b000
Segment 3 load 007f7000 size 140928 mediaptr 0x66a000
Loading ramdisk 2849281 bytes @ 3fd36000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 3.6.0+ (jejb@ion) (gcc version 4.2.4 (Debian 4.2.4-6)) #35 SMP Fri Oct 5 03:42:07 PDT 2012
[    0.000000] unwind_init: start = 0x405b7000, end = 0x405f15a0, entries = 14938
[    0.000000] WARNING: Out of order unwind entry! 00000000405b8590 and 00000000405b85a0
[    0.000000] WARNING: Out of order unwind entry! 00000000405b85a0 and 00000000405b85b0
[    0.000000] WARNING: Out of order unwind entry! 00000000405b9220 and 00000000405b9230
[    0.000000] WARNING: Out of order unwind entry! 00000000405b9230 and 00000000405b9240
[    0.000000] WARNING: Out of order unwind entry! 00000000405b9240 and 00000000405b9250
[    0.000000] WARNING: Out of order unwind entry! 00000000405b9250 and 00000000405b9260
[    0.000000] WARNING: Out of order unwind entry! 00000000405b9260 and 00000000405b9270
[    0.000000] WARNING: Out of order unwind entry! 00000000405b9270 and 00000000405b9280
[    0.000000] WARNING: Out of order unwind entry! 00000000405b9280 and 00000000405b9290
[    0.000000] WARNING: Out of order unwind entry! 00000000405b9290 and 00000000405b92a0
[    0.000000] WARNING: Out of order unwind entry! 00000000405b92c0 and 00000000405b92d0
[    0.000000] WARNING: Out of order unwind entry! 00000000405b92d0 and 00000000405b92e0
[    0.000000] WARNING: Out of order unwind entry! 00000000405b92e0 and 00000000405b92f0
[    0.000000] WARNING: Out of order unwind entry! 00000000405b92f0 and 00000000405b9300
[    0.000000] WARNING: Out of order unwind entry! 00000000405b9300 and 00000000405b9310
[    0.000000] WARNING: Out of order unwind entry! 00000000405b9310 and 00000000405b9320
[    0.000000] WARNING: Out of order unwind entry! 00000000405b9320 and 00000000405b9330
[    0.000000] WARNING: Out of order unwind entry! 00000000405b9330 and 00000000405b9340
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00008870 00000491 00000000 00000002 3e0505e7352af710 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000301
[    0.000000] CPUID vers 20 rev 4 (0x00000284)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/800/rp3440  
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
[    0.000000] Total Memory: 2046 MB
[    0.000000] initrd: 7fd36000-7ffeda01
[    0.000000] initrd: reserving 3fd36000-3ffeda01 (mem_max 7fe00000)
[    0.000000] PERCPU: Embedded 10 pages/cpu @0000000041942000 s9856 r8192 d22912 u40960
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 2 zonelists in Zone order, mobility grouping on.  Total pages: 516615
[    0.000000] Kernel command line:  root=/dev/sda3 panic=5 console=ttyS1 palo_kernel=1/vmlinux-test
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[    0.000000] Memory: 2048728k/2095104k available (4030k kernel code, 46376k reserved, 1765k data, 328k init)
[    0.000000] virtual kernel memory layout:
    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    0.000000]     memory  : 0x0000000040000000 - 0x00000040bfe00000   (264190 MB)
    0.000000]       .init : 0x00000000407c8000 - 0x000000004081a000   ( 328 kB)
    0.000000]       .data : 0x00000000404efb10 - 0x00000000406a8f10   (1765 kB)
    0.000000]       .text : 0x0000000040100000 - 0x00000000404efb10   (4030 kB)
[    0.000000] SLUB: Genslabs=11, HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=8
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  CONFIG_RCU_FANOUT set to non-default value of 32
[    0.000000] NR_IRQS:128
[    0.000000] Console: colour dummy device 160x64
[    0.000000] Calibrating delay loop... 1594.36 BogoMIPS (lpj=3188736)
[    0.048000] pid_max: default: 32768 minimum: 301
[    0.048000] Security Framework initialized
[    0.048000] SELinux:  Disabled at boot.
[    0.048000] Mount-cache hash table entries: 256
[    0.056000] Initializing cgroup subsys cpuacct
[    0.056000] Initializing cgroup subsys devices
[    0.056000] Initializing cgroup subsys freezer
[    0.064000] Initializing cgroup subsys net_cls
[    0.064000] Initializing cgroup subsys blkio
[    0.304000] Backtrace:
[    0.304000]  [<00000000401435b8>] copy_process+0x9d8/0x1698
[    0.304000]  [<00000000401151a0>] fork_idle+0x60/0xc8
[    0.304000]  [<00000000407d0c70>] idle_threads_init+0xc0/0x130
[    0.304000]  [<00000000407d2520>] smp_init+0x30/0x158
[    0.304000]  [<00000000407c87c0>] kernel_init+0x158/0x390
[    0.304000]  [<0000000040104020>] end_fault_vector+0x20/0x3c
[    0.304000]  [<000000004011bb00>] _raw_spin_trylock+0x0/0x18
[    0.304000] 
[    0.304000] 
[    0.304000] Kernel Fault: Code=26 regs=000000007f84c850 (Addr=0000000000000018)
[    0.304000] 
[    0.304000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[    0.304000] PSW: 00001000000001001111111100001111 Not tainted
[    0.304000] r00-03  000000ff0804ff0f 00000000407c4a90 0000000040129270 000000007f85d410
[    0.304000] r04-07  00000000407a0290 0000000000000000 000000007f84c348 000000007f8a0000
[    0.304000] r08-11  0000000000000000 0000000000000100 000000004069f088 0000000000000000
[    0.304000] r12-15  0000000000000000 0000000000000000 0000000000000000 000000007f84c348
[    0.304000] r16-19  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    0.304000] r20-23  0000000000000006 000000007f85da30 0000000000000000 000000007f85d410
[    0.304000] r24-27  0000000000000000 0000000000000000 000000007f85d780 00000000407a0290
[    0.304000] r28-31  0000000040104000 000000007f84c820 000000007f84c850 000000007f8a0100
[    0.304000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    0.304000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    0.304000] 
[    0.304000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040129288 000000004012928c
[    0.304000]  IIR: 50bf0030    ISR: 0000000000000000  IOR: 0000000000000018
[    0.304000]  CPU:        0   CR30: 000000007f84c000 CR31: fffffff0f0e098e0
[    0.304000]  ORIG_R28: 0000000000000000
[    0.304000]  IAOQ[0]: copy_thread+0xf8/0x110
[    0.304000]  IAOQ[1]: copy_thread+0xfc/0x110
[    0.304000]  RP(r2): copy_thread+0xe0/0x110
[    0.304000] Backtrace:
[    0.304000]  [<00000000401435b8>] copy_process+0x9d8/0x1698
[    0.304000]  [<00000000401151a0>] fork_idle+0x60/0xc8
[    0.304000]  [<00000000407d0c70>] idle_threads_init+0xc0/0x130
[    0.304000]  [<00000000407d2520>] smp_init+0x30/0x158
[    0.304000]  [<00000000407c87c0>] kernel_init+0x158/0x390
[    0.304000]  [<0000000040104020>] end_fault_vector+0x20/0x3c
[    0.304000]  [<000000004011bb00>] _raw_spin_trylock+0x0/0x18
[    0.304000] 
[    0.304000] Kernel panic - not syncing: Kernel Fault
[    0.304000] Rebooting in 5 seconds..


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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: what's parisc execve_wrapper doing in the end?
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On Fri, 2012-10-05 at 12:07 +0100, James Bottomley wrote:
> I tried out the code at
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal.git
> experimental-kernel_thread
> 
> and it gives me this panic on boot.

OK, found the fix:  the idle thread is a kernel thread, but it doesn't
come through kernel_thread().  The fix is to check for it (fortunately
it has the signal usp == 0).

I'm now getting as freeing the init memory, which then hangs, so I
suspect some type of execve failure trying to start the initrd... I'm
debugging.

James

---

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index a67f122..44e8534 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -254,7 +254,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 	extern void * const hpux_child_return;
 #endif
 
-	if (unlikely(p->flags & PF_KTHREAD)) {
+	if (unlikely((p->flags & PF_KTHREAD) && usp != 0)) {
 		memset(cregs, 0, sizeof(struct pt_regs));
 		/* kernel thread */
 		cregs->ksp = (unsigned long)stack + THREAD_SZ_ALGN;


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On Fri, 2012-10-05 at 14:44 +0100, James Bottomley wrote:
> On Fri, 2012-10-05 at 12:07 +0100, James Bottomley wrote:
> > I tried out the code at
> > 
> > git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal.git
> > experimental-kernel_thread
> > 
> > and it gives me this panic on boot.
> 
> OK, found the fix:  the idle thread is a kernel thread, but it doesn't
> come through kernel_thread().  The fix is to check for it (fortunately
> it has the signal usp == 0).
> 
> I'm now getting as freeing the init memory, which then hangs, so I
> suspect some type of execve failure trying to start the initrd... I'm
> debugging.

And the fix for this one is below: ret_from_kernel_execve has pt_regs in
%r26 ... it needs to be in %r16 for intr_return, so we just copy them
over.

With this, I can bring up the kernel all the way to a login prompt with
no apparent ill effects.

James

---

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 272c7a0..dd137fc 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -744,7 +744,8 @@ ENDPROC(ret_from_kernel_thread)
 ENTRY(ret_from_kernel_execve)
 	mfctl   %cr30, %r1
 	ldo	THREAD_SZ_ALGN(%r1), %r30
-	b,n	intr_return    /* forward */
+	b	intr_return    /* forward */
+	copy	%r26,%r16      /* pt_regs into r16 */
 ENDPROC(ret_from_kernel_execve)
 
 


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From - Thu Nov 08 21:08:38 2018
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Subject: Re: what's parisc execve_wrapper doing in the end?
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On Fri, Oct 05, 2012 at 02:44:24PM +0100, James Bottomley wrote:
> On Fri, 2012-10-05 at 12:07 +0100, James Bottomley wrote:
> > I tried out the code at
> > 
> > git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal.git
> > experimental-kernel_thread
> > 
> > and it gives me this panic on boot.
> 
> OK, found the fix:  the idle thread is a kernel thread, but it doesn't
> come through kernel_thread().  The fix is to check for it (fortunately
> it has the signal usp == 0).

Um...  I see, but I really wonder if that's the right fix.  FWIW, sparc
will have the same problem...  Hell knows.  OTOH, it's a nice way to
get of implicit interplay between copy_thread() and idle_regs() - note
that SMP architectures doing default idle_regs() need to be damn careful
about what they do in their "is that kernel thread" logics; all-zeros
pt_regs might give varying results on user_mode(regs) tests, etc.
Might be better to go for
	if (p->flags & PF_KTHREAD) {
		if (!usp) {
			we are starting an idle thread
		} else {
			we are setting things up for kernel_thread()
		}
	} else {
		we are forking
	}
kind of logics, looking at regs only in the last case.  And to hell with
(separate and overridable) idle_regs() once everything goes that way...
 
> I'm now getting as freeing the init memory, which then hangs, so I
> suspect some type of execve failure trying to start the initrd... I'm
> debugging.

What are you using for toolchain, BTW?  With gcc 4.3 / binutils 2.20
(cross-builds) I'm getting panics from mainline kernel on parisc32 all
way back to 2.6.28...
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From - Thu Nov 08 21:08:38 2018
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On Fri, 2012-10-05 at 15:48 +0100, Al Viro wrote:
> On Fri, Oct 05, 2012 at 02:44:24PM +0100, James Bottomley wrote:
> > On Fri, 2012-10-05 at 12:07 +0100, James Bottomley wrote:
> > > I tried out the code at
> > > 
> > > git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal.git
> > > experimental-kernel_thread
> > > 
> > > and it gives me this panic on boot.
> > 
> > OK, found the fix:  the idle thread is a kernel thread, but it doesn't
> > come through kernel_thread().  The fix is to check for it (fortunately
> > it has the signal usp == 0).
> 
> Um...  I see, but I really wonder if that's the right fix.  FWIW, sparc
> will have the same problem...  Hell knows.  OTOH, it's a nice way to
> get of implicit interplay between copy_thread() and idle_regs() - note
> that SMP architectures doing default idle_regs() need to be damn careful
> about what they do in their "is that kernel thread" logics; all-zeros
> pt_regs might give varying results on user_mode(regs) tests, etc.
> Might be better to go for
> 	if (p->flags & PF_KTHREAD) {
> 		if (!usp) {
> 			we are starting an idle thread
> 		} else {
> 			we are setting things up for kernel_thread()
> 		}
> 	} else {
> 		we are forking
> 	}
> kind of logics, looking at regs only in the last case.  And to hell with
> (separate and overridable) idle_regs() once everything goes that way...

But there's not a lot of point.  forking an idle thread actually doesn't
care about any of the register execution setup because it never really
uses it to execute.  That's why it was safe for us to use the user
thread setup ... I suppose the interior of the kernel thread case could
be conditioned on if (usp).


> > I'm now getting as freeing the init memory, which then hangs, so I
> > suspect some type of execve failure trying to start the initrd... I'm
> > debugging.
> 
> What are you using for toolchain, BTW?  With gcc 4.3 / binutils 2.20
> (cross-builds) I'm getting panics from mainline kernel on parisc32 all
> way back to 2.6.28...

My toolchain is

jejb@ion> gcc -v
Using built-in specs.
Target: hppa-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.4.5-8'
--with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.4 --enable-shared --enable-multiarch
--enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.4 --libdir=/usr/lib
--enable-nls --enable-clocale=gnu --enable-libstdcxx-debug
--disable-libssp --enable-objc-gc --disable-libstdcxx-pch
--enable-checking=release --build=hppa-linux-gnu --host=hppa-linux-gnu
--target=hppa-linux-gnu
Thread model: posix
gcc version 4.4.5 (Debian 4.4.5-8) 


It's the one that was in debian testing before parisc got dumped

James


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From: Al Viro <viro@ZenIV.linux.org.uk>
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Subject: Re: what's parisc execve_wrapper doing in the end?
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On Fri, Oct 05, 2012 at 03:55:36PM +0100, James Bottomley wrote:

> But there's not a lot of point.  forking an idle thread actually doesn't
> care about any of the register execution setup because it never really
> uses it to execute.  That's why it was safe for us to use the user
> thread setup ... I suppose the interior of the kernel thread case could
> be conditioned on if (usp).

FWIW, I'm digging through the fork_idle() interplay with copy_thread()
right now and the more I'm looking the less I like having called
copy_thread() at all on that path.  Note that copy_process() can trivially
tell it from the normal (do_fork()) caller, just by checking if pid
is non-NULL.  And it has to check that anyway when it decides to generate
the pid for child...

Hell knows; I wonder how much of copy_thread() work is needed in that case...
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: what's parisc execve_wrapper doing in the end?
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On 5-Oct-12, at 10:48 AM, Al Viro wrote:

> What are you using for toolchain, BTW?  With gcc 4.3 / binutils 2.20
> (cross-builds) I'm getting panics from mainline kernel on parisc32 all
> way back to 2.6.28...


Current debian unstable tools are available in shirka.esiee.fr:/home/ 
dave/archives
and shirka.esiee.fr:/home/dave/archives-new.  It's pretty straight  
forward to update
binutils, gcc, libc, etc.

gcc 4.4, 4.5, 4.6 and 4.7 are available.  In particular, 4.6 and 4.7  
have significant
bug fixes.

James seems to have an account on shirka.

I don't have any place to distribute the debs that are on shirka, or  
the time to remove
obsolete builds.  Any volunteers?

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:08:38 2018
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On Fri, Oct 05, 2012 at 03:55:36PM +0100, James Bottomley wrote:
> On Fri, 2012-10-05 at 15:48 +0100, Al Viro wrote:
> > On Fri, Oct 05, 2012 at 02:44:24PM +0100, James Bottomley wrote:
> > > On Fri, 2012-10-05 at 12:07 +0100, James Bottomley wrote:
> > > > I tried out the code at
> > > > 
> > > > git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal.git
> > > > experimental-kernel_thread
> > > > 
> > > > and it gives me this panic on boot.
> > > 
> > > OK, found the fix:  the idle thread is a kernel thread, but it doesn't
> > > come through kernel_thread().  The fix is to check for it (fortunately
> > > it has the signal usp == 0).
> > 
> > Um...  I see, but I really wonder if that's the right fix.  FWIW, sparc
> > will have the same problem...  Hell knows.  OTOH, it's a nice way to
> > get of implicit interplay between copy_thread() and idle_regs() - note
> > that SMP architectures doing default idle_regs() need to be damn careful
> > about what they do in their "is that kernel thread" logics; all-zeros
> > pt_regs might give varying results on user_mode(regs) tests, etc.
> > Might be better to go for
> > 	if (p->flags & PF_KTHREAD) {
> > 		if (!usp) {
> > 			we are starting an idle thread
> > 		} else {
> > 			we are setting things up for kernel_thread()
> > 		}
> > 	} else {
> > 		we are forking
> > 	}
> > kind of logics, looking at regs only in the last case.  And to hell with
> > (separate and overridable) idle_regs() once everything goes that way...
> 
> But there's not a lot of point.  forking an idle thread actually doesn't
> care about any of the register execution setup because it never really
> uses it to execute.  That's why it was safe for us to use the user
> thread setup ... I suppose the interior of the kernel thread case could
> be conditioned on if (usp).

BTW, speaking of parisc copy_thread()...  Why the hell do we bother
with *cregs = *pregs in userland case?  It's a part of task_struct,
after all, and we have copied that wholesale in arch_dup_task_struct().

Another thing: why do we bother with
        STREG   %r30,PT_GR21(%r1)
in fork wrapper?  We bloody well know what the offset will be, after all -
right in the beginning of that sucker we'd done
        LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
so we rely on %r30 having been (unsigned long)current_thread_info() + 
THREAD_SZ_ALGN + FRAME_SIZE.  Then we add FRAME_SIZE again.  IOW, the
offset is a known constant.  Hell, in child_return you rely on its
value...   While we are at it, I'm not sure you need to go through
wrapper_exit on the way out in parent - saving cr27 can be done via
e.g. r28 instead of r3, at which point you can simply branch to
sys_clone() with no work left for wrapper_exit.  *Child* obviously
needs to restore these registers, so let it do that in child_return,
but why bother in parent?  After all, we are talking about the callee-saved
registers, so sys_clone() is going to revert whatever changes it makes
to them...

BTW, TIF_SYSCALL_TRACE and singlestepping are turned off in child, so I don't
see any need for child_return to know where the parent had come from - it
won't have anything to do in tracesys_exit anyway.

I've folded your fixes and pushed the result; I've added (again, completely
untested) optimizations along the lines of the above on top of those, as
a separate commit.  Comments?
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From: Al Viro <viro@ZenIV.linux.org.uk>
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On Fri, Oct 05, 2012 at 06:54:02PM -0400, John David Anglin wrote:
> On 5-Oct-12, at 10:48 AM, Al Viro wrote:
> 
> >What are you using for toolchain, BTW?  With gcc 4.3 / binutils 2.20
> >(cross-builds) I'm getting panics from mainline kernel on parisc32 all
> >way back to 2.6.28...
> 
> 
> Current debian unstable tools are available in
> shirka.esiee.fr:/home/dave/archives
> and shirka.esiee.fr:/home/dave/archives-new.  It's pretty straight
> forward to update
> binutils, gcc, libc, etc.
> 
> gcc 4.4, 4.5, 4.6 and 4.7 are available.  In particular, 4.6 and 4.7
> have significant
> bug fixes.
> 
> James seems to have an account on shirka.
> 
> I don't have any place to distribute the debs that are on shirka, or
> the time to remove
> obsolete builds.  Any volunteers?

Hmm...  debian-ports would be a natural place, but TBH I'd very much prefer
to deal with cross-builds - doing kernel builds on a 100MHz 7100LC with
96M of RAM is really not fun...
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: what's parisc execve_wrapper doing in the end?
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On 5-Oct-12, at 7:32 PM, Al Viro wrote:

> On Fri, Oct 05, 2012 at 06:54:02PM -0400, John David Anglin wrote:
>> On 5-Oct-12, at 10:48 AM, Al Viro wrote:
>>
>>> What are you using for toolchain, BTW?  With gcc 4.3 / binutils 2.20
>>> (cross-builds) I'm getting panics from mainline kernel on parisc32  
>>> all
>>> way back to 2.6.28...
>>
>>
>> Current debian unstable tools are available in
>> shirka.esiee.fr:/home/dave/archives
>> and shirka.esiee.fr:/home/dave/archives-new.  It's pretty straight
>> forward to update
>> binutils, gcc, libc, etc.
>>
>> gcc 4.4, 4.5, 4.6 and 4.7 are available.  In particular, 4.6 and 4.7
>> have significant
>> bug fixes.
>>
>> James seems to have an account on shirka.
>>
>> I don't have any place to distribute the debs that are on shirka, or
>> the time to remove
>> obsolete builds.  Any volunteers?
>
> Hmm...  debian-ports would be a natural place, but TBH I'd very much  
> prefer
> to deal with cross-builds - doing kernel builds on a 100MHz 7100LC  
> with
> 96M of RAM is really not fun...
>

Right...

I had setup a buildd system system on lafayette.esiee.fr but  
unfortunately
a processor module died.  I also never received a response from debian- 
ports
(several emails) about restarting buildd for parisc.

I've continued to build packages on the rp3440 that I have at home.   
It doesn't have
much trouble keeping up with unstable.  At the same time, I use it for  
gcc testing
and development.

I would say you should be able to build cross tools using the binutils  
2.22 branch
and gcc 4.6 or 4.7.  They should work better than gcc 4.3 with  
binutils 2.20.

The reason I say that is I have built many debian packages with the  
current tools
and I have been slowly chipping away at the toolchain bugs that I have  
found.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: what's parisc execve_wrapper doing in the end?
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On Sat, 2012-10-06 at 00:04 +0100, Al Viro wrote:
> On Fri, Oct 05, 2012 at 03:55:36PM +0100, James Bottomley wrote:
> > On Fri, 2012-10-05 at 15:48 +0100, Al Viro wrote:
> > > On Fri, Oct 05, 2012 at 02:44:24PM +0100, James Bottomley wrote:
> > > > On Fri, 2012-10-05 at 12:07 +0100, James Bottomley wrote:
> > > > > I tried out the code at
> > > > > 
> > > > > git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal.git
> > > > > experimental-kernel_thread
> > > > > 
> > > > > and it gives me this panic on boot.
> > > > 
> > > > OK, found the fix:  the idle thread is a kernel thread, but it doesn't
> > > > come through kernel_thread().  The fix is to check for it (fortunately
> > > > it has the signal usp == 0).
> > > 
> > > Um...  I see, but I really wonder if that's the right fix.  FWIW, sparc
> > > will have the same problem...  Hell knows.  OTOH, it's a nice way to
> > > get of implicit interplay between copy_thread() and idle_regs() - note
> > > that SMP architectures doing default idle_regs() need to be damn careful
> > > about what they do in their "is that kernel thread" logics; all-zeros
> > > pt_regs might give varying results on user_mode(regs) tests, etc.
> > > Might be better to go for
> > > 	if (p->flags & PF_KTHREAD) {
> > > 		if (!usp) {
> > > 			we are starting an idle thread
> > > 		} else {
> > > 			we are setting things up for kernel_thread()
> > > 		}
> > > 	} else {
> > > 		we are forking
> > > 	}
> > > kind of logics, looking at regs only in the last case.  And to hell with
> > > (separate and overridable) idle_regs() once everything goes that way...
> > 
> > But there's not a lot of point.  forking an idle thread actually doesn't
> > care about any of the register execution setup because it never really
> > uses it to execute.  That's why it was safe for us to use the user
> > thread setup ... I suppose the interior of the kernel thread case could
> > be conditioned on if (usp).
> 
> BTW, speaking of parisc copy_thread()...  Why the hell do we bother
> with *cregs = *pregs in userland case?  It's a part of task_struct,
> after all, and we have copied that wholesale in arch_dup_task_struct().
> 
> Another thing: why do we bother with
>         STREG   %r30,PT_GR21(%r1)
> in fork wrapper?  We bloody well know what the offset will be, after all -
> right in the beginning of that sucker we'd done
>         LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
> so we rely on %r30 having been (unsigned long)current_thread_info() + 
> THREAD_SZ_ALGN + FRAME_SIZE.  Then we add FRAME_SIZE again.  IOW, the
> offset is a known constant.  Hell, in child_return you rely on its
> value...   While we are at it, I'm not sure you need to go through
> wrapper_exit on the way out in parent - saving cr27 can be done via
> e.g. r28 instead of r3, at which point you can simply branch to
> sys_clone() with no work left for wrapper_exit.  *Child* obviously
> needs to restore these registers, so let it do that in child_return,
> but why bother in parent?  After all, we are talking about the callee-saved
> registers, so sys_clone() is going to revert whatever changes it makes
> to them...

It sounds plausible.  I'm checking your branch out now, modulo a couple
of compile failures:

arch/parisc/kernel/entry.S: Assembler messages:
arch/parisc/kernel/entry.S:1754: Error: Invalid operands 

arch/parisc/kernel/process.c: In function 'copy_thread':
arch/parisc/kernel/process.c:256: error: 'FRAME_SIZE' undeclared (first use in this function)
arch/parisc/kernel/process.c:256: error: (Each undeclared identifier is reported only once
arch/parisc/kernel/process.c:256: error: for each function it appears in.)
arch/parisc/kernel/process.c:258: error: expected ')' before '{' token
arch/parisc/kernel/process.c:297: error: expected expression before '}' token
arch/parisc/kernel/process.c:252: warning: unused variable 'child_return'
arch/parisc/kernel/process.c:251: warning: unused variable 'ret_from_kernel_thread'

Fix up below.

> BTW, TIF_SYSCALL_TRACE and singlestepping are turned off in child, so I don't
> see any need for child_return to know where the parent had come from - it
> won't have anything to do in tracesys_exit anyway.
> 
> I've folded your fixes and pushed the result; I've added (again, completely
> untested) optimizations along the lines of the above on top of those, as
> a separate commit.  Comments?

Even with the patch applied, it's hanging on boot around the first
kthread spawns.  I'm investigating.

James

---

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index f253f36..47fb6dd 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1751,7 +1751,7 @@ ENTRY(sys_vfork_wrapper)
 	mfctl	%cr27, %r28
 	STREG	%r28, PT_CR27(%r1)
 
-	b	sys_vfork,%r2
+	b	sys_vfork
 	copy	%r1,%r26
 ENDPROC(sys_vfork_wrapper)
 
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 47eba15..61113c3 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -52,6 +52,7 @@
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
+#include <asm/assembly.h>
 #include <asm/pdc.h>
 #include <asm/pdc_chassis.h>
 #include <asm/pgalloc.h>
@@ -255,7 +256,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 #endif
 	cregs->ksp = (unsigned long)stack + THREAD_SZ_ALGN + FRAME_SIZE;
 
-	if (unlikely((p->flags & PF_KTHREAD)) {
+	if (unlikely(p->flags & PF_KTHREAD)) {
 		memset(cregs, 0, sizeof(struct pt_regs));
 		if (!usp) /* idle thread */
 			return 0;


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From: David Howells <dhowells@redhat.com>
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Subject: [GIT PULL] Disintegrate UAPI for parisc [ver #2]
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Can you merge the following branch into the parisc tree please.

This is to complete part of the UAPI disintegration for which the preparatory
patches were pulled recently.

Now that the fixups and the asm-generic chunk have been merged, I've
regenerated the patches to get rid of those dependencies and to take account of
any changes made so far in the merge window.  If you have already pulled the
older version of the branch aimed at you, then please feel free to ignore this
request.

The following changes since commit 9e2d8656f5e8aa214e66b462680cf86b210b74a8:

  Merge branch 'akpm' (Andrew's patch-bomb) (2012-10-09 16:23:15 +0900)

are available in the git repository at:


  git://git.infradead.org/users/dhowells/linux-headers.git tags/disintegrate-parisc-20121009

for you to fetch changes up to 7869b46c99d8de719f7543d6ba432a7fcc3c78b3:

  UAPI: (Scripted) Disintegrate arch/parisc/include/asm (2012-10-09 09:47:22 +0100)

----------------------------------------------------------------
UAPI Disintegration 2012-10-09

----------------------------------------------------------------
David Howells (1):
      UAPI: (Scripted) Disintegrate arch/parisc/include/asm

 arch/parisc/include/asm/Kbuild                   |   2 -
 arch/parisc/include/asm/pdc.h                    | 423 +-----------
 arch/parisc/include/asm/ptrace.h                 |  46 +-
 arch/parisc/include/asm/signal.h                 | 113 +--
 arch/parisc/include/asm/termios.h                |  41 +-
 arch/parisc/include/asm/unistd.h                 | 835 +---------------------
 arch/parisc/include/uapi/asm/Kbuild              |  32 +
 arch/parisc/include/{ => uapi}/asm/auxvec.h      |   0
 arch/parisc/include/{ => uapi}/asm/bitsperlong.h |   0
 arch/parisc/include/{ => uapi}/asm/byteorder.h   |   0
 arch/parisc/include/{ => uapi}/asm/errno.h       |   0
 arch/parisc/include/{ => uapi}/asm/fcntl.h       |   0
 arch/parisc/include/{ => uapi}/asm/ioctl.h       |   0
 arch/parisc/include/{ => uapi}/asm/ioctls.h      |   0
 arch/parisc/include/{ => uapi}/asm/ipcbuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/kvm_para.h    |   0
 arch/parisc/include/{ => uapi}/asm/mman.h        |   0
 arch/parisc/include/{ => uapi}/asm/msgbuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/param.h       |   0
 arch/parisc/include/uapi/asm/pdc.h               | 427 ++++++++++++
 arch/parisc/include/{ => uapi}/asm/poll.h        |   0
 arch/parisc/include/{ => uapi}/asm/posix_types.h |   0
 arch/parisc/include/uapi/asm/ptrace.h            |  47 ++
 arch/parisc/include/{ => uapi}/asm/resource.h    |   0
 arch/parisc/include/{ => uapi}/asm/sembuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/setup.h       |   0
 arch/parisc/include/{ => uapi}/asm/shmbuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/sigcontext.h  |   0
 arch/parisc/include/{ => uapi}/asm/siginfo.h     |   0
 arch/parisc/include/uapi/asm/signal.h            | 118 ++++
 arch/parisc/include/{ => uapi}/asm/socket.h      |   0
 arch/parisc/include/{ => uapi}/asm/sockios.h     |   0
 arch/parisc/include/{ => uapi}/asm/stat.h        |   0
 arch/parisc/include/{ => uapi}/asm/statfs.h      |   0
 arch/parisc/include/{ => uapi}/asm/swab.h        |   0
 arch/parisc/include/{ => uapi}/asm/termbits.h    |   0
 arch/parisc/include/uapi/asm/termios.h           |  43 ++
 arch/parisc/include/{ => uapi}/asm/types.h       |   0
 arch/parisc/include/uapi/asm/unistd.h            | 837 +++++++++++++++++++++++
 39 files changed, 1511 insertions(+), 1453 deletions(-)
 rename arch/parisc/include/{ => uapi}/asm/auxvec.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/bitsperlong.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/byteorder.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/errno.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/fcntl.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/ioctl.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/ioctls.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/ipcbuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/kvm_para.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/mman.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/msgbuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/param.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/pdc.h
 rename arch/parisc/include/{ => uapi}/asm/poll.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/posix_types.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/ptrace.h
 rename arch/parisc/include/{ => uapi}/asm/resource.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/sembuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/setup.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/shmbuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/sigcontext.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/siginfo.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/signal.h
 rename arch/parisc/include/{ => uapi}/asm/socket.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/sockios.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/stat.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/statfs.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/swab.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/termbits.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/termios.h
 rename arch/parisc/include/{ => uapi}/asm/types.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/unistd.h
.

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On Mon, 2012-10-08 at 12:28 +0100, James Bottomley wrote:
> Even with the patch applied, it's hanging on boot around the first
> kthread spawns.  I'm investigating.

Actually an obvious fix: you can't set up ksp and then zero the
registers.

I note that the stack frame you're creating is too big since
THREAD_SZ_ALGN includes space for a stack frame by design so adding
another one is redundant.  However, this confusion seems to permeate the
syscall code as well, so perhaps fixing it up later is better.

With this patch applied, I can now boot up successfully to a login
prompt.

James

---

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 61113c3..38db36f 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -254,8 +254,6 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 #ifdef CONFIG_HPUX
 	extern void * const hpux_child_return;
 #endif
-	cregs->ksp = (unsigned long)stack + THREAD_SZ_ALGN + FRAME_SIZE;

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On Tue, Oct 09, 2012 at 10:55:21AM +0100, James Bottomley wrote:
> On Mon, 2012-10-08 at 12:28 +0100, James Bottomley wrote:
> > Even with the patch applied, it's hanging on boot around the first
> > kthread spawns.  I'm investigating.
> 
> Actually an obvious fix: you can't set up ksp and then zero the
> registers.
> 
> I note that the stack frame you're creating is too big since
> THREAD_SZ_ALGN includes space for a stack frame by design so adding
> another one is redundant.  However, this confusion seems to permeate the
> syscall code as well, so perhaps fixing it up later is better.
> 
> With this patch applied, I can now boot up successfully to a login
> prompt.

Thanks.  Folded and pushed with the rebase - it's in experimental-kernel_thread
pushed right now.  Should propagate to git.kernel.org shortly...
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Subject: Patch "parisc: Add missing RCU idle APIs on idle loop" has been added to the 3.6-stable tree
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This is a note to let you know that I've just added the patch titled

    parisc: Add missing RCU idle APIs on idle loop

to the 3.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     parisc-add-missing-rcu-idle-apis-on-idle-loop.patch
and it can be found in the queue-3.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From fbe752188d5589e7fcbb8e79824e560f77dccc92 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Wed, 22 Aug 2012 17:27:34 +0200
Subject: parisc: Add missing RCU idle APIs on idle loop

From: Frederic Weisbecker <fweisbec@gmail.com>

commit fbe752188d5589e7fcbb8e79824e560f77dccc92 upstream.

In the old times, the whole idle task was considered
as an RCU quiescent state. But as RCU became more and
more successful overtime, some RCU read side critical
section have been added even in the code of some
architectures idle tasks, for tracing for example.

So nowadays, rcu_idle_enter() and rcu_idle_exit() must
be called by the architecture to tell RCU about the part
in the idle loop that doesn't make use of rcu read side
critical sections, typically the part that puts the CPU
in low power mode.

This is necessary for RCU to find the quiescent states in
idle in order to complete grace periods.

Add this missing pair of calls in the parisc's idle loop.

Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Parisc <linux-parisc@vger.kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/parisc/kernel/process.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -48,6 +48,7 @@
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
 #include <linux/uaccess.h>
+#include <linux/rcupdate.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -69,8 +70,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			barrier();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 		check_pgt_cache();
 	}


Patches currently in stable-queue which might be from fweisbec@gmail.com are

queue-3.6/frv-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.6/cris-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.6/m68k-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.6/alpha-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.6/h8300-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.6/parisc-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.6/m32r-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.6/score-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.6/mn10300-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.6/xtensa-add-missing-rcu-idle-apis-on-idle-loop.patch
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From - Thu Nov 08 21:08:38 2018
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This is a note to let you know that I've just added the patch titled

    parisc: Add missing RCU idle APIs on idle loop

to the 3.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     parisc-add-missing-rcu-idle-apis-on-idle-loop.patch
and it can be found in the queue-3.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From fbe752188d5589e7fcbb8e79824e560f77dccc92 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Wed, 22 Aug 2012 17:27:34 +0200
Subject: parisc: Add missing RCU idle APIs on idle loop

From: Frederic Weisbecker <fweisbec@gmail.com>

commit fbe752188d5589e7fcbb8e79824e560f77dccc92 upstream.

In the old times, the whole idle task was considered
as an RCU quiescent state. But as RCU became more and
more successful overtime, some RCU read side critical
section have been added even in the code of some
architectures idle tasks, for tracing for example.

So nowadays, rcu_idle_enter() and rcu_idle_exit() must
be called by the architecture to tell RCU about the part
in the idle loop that doesn't make use of rcu read side
critical sections, typically the part that puts the CPU
in low power mode.

This is necessary for RCU to find the quiescent states in
idle in order to complete grace periods.

Add this missing pair of calls in the parisc's idle loop.

Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Parisc <linux-parisc@vger.kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/parisc/kernel/process.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -48,6 +48,7 @@
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
 #include <linux/uaccess.h>
+#include <linux/rcupdate.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -69,8 +70,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			barrier();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 		check_pgt_cache();
 	}


Patches currently in stable-queue which might be from fweisbec@gmail.com are

queue-3.4/frv-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.4/cris-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.4/m68k-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.4/alpha-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.4/h8300-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.4/parisc-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.4/m32r-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.4/score-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.4/mn10300-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.4/xtensa-add-missing-rcu-idle-apis-on-idle-loop.patch
--
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From - Thu Nov 08 21:08:38 2018
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From: <gregkh@linuxfoundation.org>
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Subject: Patch "parisc: Add missing RCU idle APIs on idle loop" has been added to the 3.5-stable tree
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This is a note to let you know that I've just added the patch titled

    parisc: Add missing RCU idle APIs on idle loop

to the 3.5-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     parisc-add-missing-rcu-idle-apis-on-idle-loop.patch
and it can be found in the queue-3.5 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From fbe752188d5589e7fcbb8e79824e560f77dccc92 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Wed, 22 Aug 2012 17:27:34 +0200
Subject: parisc: Add missing RCU idle APIs on idle loop

From: Frederic Weisbecker <fweisbec@gmail.com>

commit fbe752188d5589e7fcbb8e79824e560f77dccc92 upstream.

In the old times, the whole idle task was considered
as an RCU quiescent state. But as RCU became more and
more successful overtime, some RCU read side critical
section have been added even in the code of some
architectures idle tasks, for tracing for example.

So nowadays, rcu_idle_enter() and rcu_idle_exit() must
be called by the architecture to tell RCU about the part
in the idle loop that doesn't make use of rcu read side
critical sections, typically the part that puts the CPU
in low power mode.

This is necessary for RCU to find the quiescent states in
idle in order to complete grace periods.

Add this missing pair of calls in the parisc's idle loop.

Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Parisc <linux-parisc@vger.kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/parisc/kernel/process.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -48,6 +48,7 @@
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
 #include <linux/uaccess.h>
+#include <linux/rcupdate.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -69,8 +70,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			barrier();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 		check_pgt_cache();
 	}


Patches currently in stable-queue which might be from fweisbec@gmail.com are

queue-3.5/frv-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.5/cris-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.5/m68k-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.5/alpha-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.5/h8300-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.5/parisc-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.5/m32r-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.5/score-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.5/mn10300-add-missing-rcu-idle-apis-on-idle-loop.patch
queue-3.5/xtensa-add-missing-rcu-idle-apis-on-idle-loop.patch
--
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From - Thu Nov 08 21:08:39 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: parisc-linux.org down?
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Community,

Is www.parisc-linux.org down for anyone else?

Cheers,
Carlos.
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From - Thu Nov 08 21:08:39 2018
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On Wednesday 10 October 2012 16:14:35 Carlos O'Donell wrote:
> Is www.parisc-linux.org down for anyone else?

yes, i cannot ping it and all connections timeout
-mike

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From - Thu Nov 08 21:08:39 2018
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Subject: [ 089/122] parisc: Add missing RCU idle APIs on idle loop
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3.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Frederic Weisbecker <fweisbec@gmail.com>

commit fbe752188d5589e7fcbb8e79824e560f77dccc92 upstream.

In the old times, the whole idle task was considered
as an RCU quiescent state. But as RCU became more and
more successful overtime, some RCU read side critical
section have been added even in the code of some
architectures idle tasks, for tracing for example.

So nowadays, rcu_idle_enter() and rcu_idle_exit() must
be called by the architecture to tell RCU about the part
in the idle loop that doesn't make use of rcu read side
critical sections, typically the part that puts the CPU
in low power mode.

This is necessary for RCU to find the quiescent states in
idle in order to complete grace periods.

Add this missing pair of calls in the parisc's idle loop.

Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Parisc <linux-parisc@vger.kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/parisc/kernel/process.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -48,6 +48,7 @@
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
 #include <linux/uaccess.h>
+#include <linux/rcupdate.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -69,8 +70,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			barrier();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 		check_pgt_cache();
 	}



From - Thu Nov 08 21:08:39 2018
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On Wed, Oct 10, 2012 at 4:14 PM, Carlos O'Donell
<carlos@systemhalted.org> wrote:
> Community,
>
> Is www.parisc-linux.org down for anyone else?

So it looks like the box is down, Dave, and Mike confirm.

Does anyone know how we manage this box?

Cheers,
Carlos.
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From - Thu Nov 08 21:08:39 2018
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Subject: [ 102/133] parisc: Add missing RCU idle APIs on idle loop
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3.5-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Frederic Weisbecker <fweisbec@gmail.com>

commit fbe752188d5589e7fcbb8e79824e560f77dccc92 upstream.

In the old times, the whole idle task was considered
as an RCU quiescent state. But as RCU became more and
more successful overtime, some RCU read side critical
section have been added even in the code of some
architectures idle tasks, for tracing for example.

So nowadays, rcu_idle_enter() and rcu_idle_exit() must
be called by the architecture to tell RCU about the part
in the idle loop that doesn't make use of rcu read side
critical sections, typically the part that puts the CPU
in low power mode.

This is necessary for RCU to find the quiescent states in
idle in order to complete grace periods.

Add this missing pair of calls in the parisc's idle loop.

Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Parisc <linux-parisc@vger.kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/parisc/kernel/process.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -48,6 +48,7 @@
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
 #include <linux/uaccess.h>
+#include <linux/rcupdate.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -69,8 +70,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			barrier();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 		check_pgt_cache();
 	}



From - Thu Nov 08 21:08:39 2018
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X-Mozilla-Keys:                                                                                 
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On Wed, Oct 10, 2012 at 8:55 PM, dann frazier <dannf@dannf.org> wrote:
>> So it looks like the box is down, Dave, and Mike confirm.
>>
>> Does anyone know how we manage this box?
>
> Yes, it appears to be down. Noone is really managing the box - the
> consensus was to move it to a VM somewhere, but noone volunteered to
> do so. I'll ask someone at hp to power cycle it to see if that brings
> it back.

Thanks for reminding me of the current situation.

I'll see what I can do about hosting www.parisc-linux.org, and perhaps
changing the site design to be something as simple as a wiki on an EC2
instance.

Cheers,
Carlos.
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On Wed, Oct 10, 2012 at 08:37:20PM -0400, Carlos O'Donell wrote:
> On Wed, Oct 10, 2012 at 4:14 PM, Carlos O'Donell
> <carlos@systemhalted.org> wrote:
> > Community,
> >
> > Is www.parisc-linux.org down for anyone else?
> 
> So it looks like the box is down, Dave, and Mike confirm.
> 
> Does anyone know how we manage this box?

Yes, it appears to be down. Noone is really managing the box - the
consensus was to move it to a VM somewhere, but noone volunteered to
do so. I'll ask someone at hp to power cycle it to see if that brings
it back.

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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.stable
Subject: [ 088/120] parisc: Add missing RCU idle APIs on idle loop
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3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Frederic Weisbecker <fweisbec@gmail.com>

commit fbe752188d5589e7fcbb8e79824e560f77dccc92 upstream.

In the old times, the whole idle task was considered
as an RCU quiescent state. But as RCU became more and
more successful overtime, some RCU read side critical
section have been added even in the code of some
architectures idle tasks, for tracing for example.

So nowadays, rcu_idle_enter() and rcu_idle_exit() must
be called by the architecture to tell RCU about the part
in the idle loop that doesn't make use of rcu read side
critical sections, typically the part that puts the CPU
in low power mode.

This is necessary for RCU to find the quiescent states in
idle in order to complete grace periods.

Add this missing pair of calls in the parisc's idle loop.

Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Parisc <linux-parisc@vger.kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/parisc/kernel/process.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -48,6 +48,7 @@
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
 #include <linux/uaccess.h>
+#include <linux/rcupdate.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -69,8 +70,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			barrier();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 		check_pgt_cache();
 	}


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On Wednesday 10 October 2012 21:04:35 Carlos O'Donell wrote:
> On Wed, Oct 10, 2012 at 8:55 PM, dann frazier <dannf@dannf.org> wrote:
> >> So it looks like the box is down, Dave, and Mike confirm.
> >>=20
> >> Does anyone know how we manage this box?
> >=20
> > Yes, it appears to be down. Noone is really managing the box - the
> > consensus was to move it to a VM somewhere, but noone volunteered to
> > do so. I'll ask someone at hp to power cycle it to see if that brings
> > it back.
>=20
> Thanks for reminding me of the current situation.
>=20
> I'll see what I can do about hosting www.parisc-linux.org, and perhaps
> changing the site design to be something as simple as a wiki on an EC2
> instance.

how big is the site ?  we host some of our medium-sized open source project=
s=20
on VMs provided by OSUOSL.  maybe worth contacting since the price is right=
 ?=20
(i.e. free ;])

although i really appreciate having sites be hosted by the things they espo=
use=20
(hppa in this case), but i can see that geek factor being less important th=
an=20
an available site.
=2Dmike

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On Fri, Oct 12, 2012 at 10:12 AM, Thibaut VARENE <varenet@gmail.com> wrote:
>
> Or so it seems
>
> HTH
>
> T-Bone
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From - Thu Nov 08 21:08:40 2018
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From - Thu Nov 08 21:08:40 2018
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From - Thu Nov 08 21:08:40 2018
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From: Fengguang Wu <fengguang.wu@intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.janitors
Subject: [jdelvare-staging:i2c-for-linus 9/15]
 drivers/leds/leds-tca6507.c:179:20: error: field 'gpio' has incomplete type
Date: Tue, 16 Oct 2012 13:58:29 +0800
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	Parisc List <linux-parisc@vger.kernel.org>
To: Jean Delvare <khali@linux-fr.org>
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Hi Jean,

FYI, kernel build failed on

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging.git i2c-for-linus
head:   c415b303a704e5c5f766fc0404093910c36cc4ab
commit: 3ad7ea18ae8c7ddda46b7276e0bda73e707ea9c1 [9/15] i2c-i801: Support SMBus multiplexing on Asus Z8 series
config: parisc-allyesconfig # make ARCH=parisc allyesconfig

All error/warnings:

drivers/leds/leds-tca6507.c:179:20: error: field 'gpio' has incomplete type
drivers/leds/leds-tca6507.c: In function 'tca6507_gpio_set_value':
drivers/leds/leds-tca6507.c:591:29: warning: initialization from incompatible pointer type [enabled by default]
drivers/leds/leds-tca6507.c:591:29: warning: (near initialization for 'tca') [enabled by default]
drivers/leds/leds-tca6507.c: In function 'tca6507_probe_gpios':
drivers/leds/leds-tca6507.c:640:2: error: implicit declaration of function 'gpiochip_add' [-Werror=implicit-function-declaration]
drivers/leds/leds-tca6507.c: In function 'tca6507_remove_gpio':
drivers/leds/leds-tca6507.c:653:3: error: implicit declaration of function 'gpiochip_remove' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
--
drivers/input/touchscreen/ad7879.c:115:19: error: field 'gc' has incomplete type
drivers/input/touchscreen/ad7879.c: In function 'ad7879_gpio_direction_input':
drivers/input/touchscreen/ad7879.c:385:22: warning: initialization from incompatible pointer type [enabled by default]
drivers/input/touchscreen/ad7879.c:385:22: warning: (near initialization for 'ts') [enabled by default]
drivers/input/touchscreen/ad7879.c: In function 'ad7879_gpio_direction_output':
drivers/input/touchscreen/ad7879.c:399:22: warning: initialization from incompatible pointer type [enabled by default]
drivers/input/touchscreen/ad7879.c:399:22: warning: (near initialization for 'ts') [enabled by default]
drivers/input/touchscreen/ad7879.c: In function 'ad7879_gpio_get_value':
drivers/input/touchscreen/ad7879.c:418:22: warning: initialization from incompatible pointer type [enabled by default]
drivers/input/touchscreen/ad7879.c:418:22: warning: (near initialization for 'ts') [enabled by default]
drivers/input/touchscreen/ad7879.c: In function 'ad7879_gpio_set_value':
drivers/input/touchscreen/ad7879.c:431:22: warning: initialization from incompatible pointer type [enabled by default]
drivers/input/touchscreen/ad7879.c:431:22: warning: (near initialization for 'ts') [enabled by default]
drivers/input/touchscreen/ad7879.c: In function 'ad7879_gpio_add':
drivers/input/touchscreen/ad7879.c:462:3: error: implicit declaration of function 'gpiochip_add' [-Werror=implicit-function-declaration]
drivers/input/touchscreen/ad7879.c: In function 'ad7879_gpio_remove':
drivers/input/touchscreen/ad7879.c:477:3: error: implicit declaration of function 'gpiochip_remove' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors

vim +179 drivers/leds/leds-tca6507.c

a6d511e5 NeilBrown 2012-01-10  163  		int time_use, level_use;
a6d511e5 NeilBrown 2012-01-10  164  	} bank[3];
a6d511e5 NeilBrown 2012-01-10  165  	struct i2c_client	*client;
a6d511e5 NeilBrown 2012-01-10  166  	struct work_struct	work;
a6d511e5 NeilBrown 2012-01-10  167  	spinlock_t		lock;
a6d511e5 NeilBrown 2012-01-10  168  
a6d511e5 NeilBrown 2012-01-10  169  	struct tca6507_led {
a6d511e5 NeilBrown 2012-01-10  170  		struct tca6507_chip	*chip;
a6d511e5 NeilBrown 2012-01-10  171  		struct led_classdev	led_cdev;
a6d511e5 NeilBrown 2012-01-10  172  		int			num;
a6d511e5 NeilBrown 2012-01-10  173  		int			ontime, offtime;
a6d511e5 NeilBrown 2012-01-10  174  		int			on_dflt, off_dflt;
a6d511e5 NeilBrown 2012-01-10  175  		int			bank;	/* Bank used, or -1 */
a6d511e5 NeilBrown 2012-01-10  176  		int			blink;	/* Set if hardware-blinking */
a6d511e5 NeilBrown 2012-01-10  177  	} leds[NUM_LEDS];
a6d511e5 NeilBrown 2012-01-10  178  #ifdef CONFIG_GPIOLIB
a6d511e5 NeilBrown 2012-01-10 @179  	struct gpio_chip		gpio;
a6d511e5 NeilBrown 2012-01-10  180  	const char			*gpio_name[NUM_LEDS];
a6d511e5 NeilBrown 2012-01-10  181  	int				gpio_map[NUM_LEDS];
a6d511e5 NeilBrown 2012-01-10  182  #endif
a6d511e5 NeilBrown 2012-01-10  183  };
a6d511e5 NeilBrown 2012-01-10  184  
a6d511e5 NeilBrown 2012-01-10  185  static const struct i2c_device_id tca6507_id[] = {
a6d511e5 NeilBrown 2012-01-10  186  	{ "tca6507" },
a6d511e5 NeilBrown 2012-01-10  187  	{ }

The code at line 179 was first introduced by commit:
a6d511e leds: add driver for TCA6507 LED controller


---
0-DAY kernel build testing backend         Open Source Technology Center
Fengguang Wu, Yuanhan Liu                              Intel Corporation
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From - Thu Nov 08 21:08:40 2018
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From: Fengguang Wu <fengguang.wu@intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.janitors
Subject: [vexpress:for-tixy 1/13] include/linux/mfd/tps65912.h:301:19: error:
 field 'gpio' has incomplete type
Date: Wed, 17 Oct 2012 01:22:43 +0800
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	Parisc List <linux-parisc@vger.kernel.org>,
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Hi Pawel,

FYI, kernel build failed on

tree:   git://git.linaro.org/people/pawelmoll/linux.git for-tixy
head:   5e1365f66d14192704de05e796498ecb3fc4ba1f
commit: 7037839fdc0ead74bfc3c43e3e5d8617a24c9bc4 [1/13] video: Versatile Express DVI output driver
config: parisc-allyesconfig # make ARCH=parisc 

All error/warnings:

In file included from drivers/mfd/tps65912-core.c:22:0:
include/linux/mfd/tps65912.h:301:19: error: field 'gpio' has incomplete type
--
drivers/mfd/sm501.c:42:19: error: field 'gpio' has incomplete type
drivers/mfd/sm501.c: In function 'to_sm501_gpio':
drivers/mfd/sm501.c:884:9: warning: initialization from incompatible pointer type [enabled by default]
drivers/mfd/sm501.c: At top level:
drivers/mfd/sm501.c:1009:15: error: variable 'gpio_chip_template' has initializer but incomplete type
drivers/mfd/sm501.c:1010:2: error: unknown field 'ngpio' specified in initializer
drivers/mfd/sm501.c:1010:2: warning: excess elements in struct initializer [enabled by default]
drivers/mfd/sm501.c:1010:2: warning: (near initialization for 'gpio_chip_template') [enabled by default]
drivers/mfd/sm501.c:1011:2: error: unknown field 'direction_input' specified in initializer
drivers/mfd/sm501.c:1011:2: warning: excess elements in struct initializer [enabled by default]
drivers/mfd/sm501.c:1011:2: warning: (near initialization for 'gpio_chip_template') [enabled by default]
drivers/mfd/sm501.c:1012:2: error: unknown field 'direction_output' specified in initializer
drivers/mfd/sm501.c:1012:2: warning: excess elements in struct initializer [enabled by default]
drivers/mfd/sm501.c:1012:2: warning: (near initialization for 'gpio_chip_template') [enabled by default]
drivers/mfd/sm501.c:1013:2: error: unknown field 'set' specified in initializer
drivers/mfd/sm501.c:1013:2: warning: excess elements in struct initializer [enabled by default]
drivers/mfd/sm501.c:1013:2: warning: (near initialization for 'gpio_chip_template') [enabled by default]
drivers/mfd/sm501.c:1014:2: error: unknown field 'get' specified in initializer
drivers/mfd/sm501.c:1014:2: warning: excess elements in struct initializer [enabled by default]
drivers/mfd/sm501.c:1014:2: warning: (near initialization for 'gpio_chip_template') [enabled by default]
drivers/mfd/sm501.c: In function 'sm501_gpio_register_chip':
drivers/mfd/sm501.c:1032:8: error: dereferencing pointer to incomplete type
drivers/mfd/sm501.c:1036:8: error: dereferencing pointer to incomplete type
drivers/mfd/sm501.c:1039:7: error: dereferencing pointer to incomplete type
drivers/mfd/sm501.c:1042:2: error: implicit declaration of function 'gpiochip_add' [-Werror=implicit-function-declaration]
drivers/mfd/sm501.c: In function 'sm501_register_gpio':
drivers/mfd/sm501.c:1089:2: error: implicit declaration of function 'gpiochip_remove' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
--
drivers/mfd/htc-i2cpld.c:51:26: error: field 'chip_out' has incomplete type
drivers/mfd/htc-i2cpld.c:55:26: error: field 'chip_in' has incomplete type
drivers/mfd/htc-i2cpld.c: In function 'htcpld_chip_set':
drivers/mfd/htc-i2cpld.c:233:14: warning: initialization from incompatible pointer type [enabled by default]
drivers/mfd/htc-i2cpld.c: In function 'htcpld_chip_get':
drivers/mfd/htc-i2cpld.c:268:14: warning: initialization from incompatible pointer type [enabled by default]
drivers/mfd/htc-i2cpld.c:272:15: warning: initialization from incompatible pointer type [enabled by default]
drivers/mfd/htc-i2cpld.c: In function 'htcpld_direction_input':
drivers/mfd/htc-i2cpld.c:305:23: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c: In function 'htcpld_chip_to_irq':
drivers/mfd/htc-i2cpld.c:312:14: warning: initialization from incompatible pointer type [enabled by default]
drivers/mfd/htc-i2cpld.c: In function 'htcpld_register_chip_gpio':
drivers/mfd/htc-i2cpld.c:457:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:458:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:459:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:460:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:461:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:462:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:463:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:464:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:465:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:468:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:469:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:470:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:471:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:472:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:473:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:474:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:475:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:476:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:477:11: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:480:2: error: implicit declaration of function 'gpiochip_add' [-Werror=implicit-function-declaration]
drivers/mfd/htc-i2cpld.c:494:3: error: implicit declaration of function 'gpiochip_remove' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
--
drivers/mfd/tps65010.c:91:19: error: field 'chip' has incomplete type
drivers/mfd/tps65010.c: In function 'tps65010_output':
drivers/mfd/tps65010.c:479:9: warning: initialization from incompatible pointer type [enabled by default]
drivers/mfd/tps65010.c: In function 'tps65010_gpio_get':
drivers/mfd/tps65010.c:496:8: warning: initialization from incompatible pointer type [enabled by default]
drivers/mfd/tps65010.c: In function 'tps65010_probe':
drivers/mfd/tps65010.c:654:3: error: implicit declaration of function 'gpiochip_add' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
--
In file included from drivers/mfd/ucb1400_core.c:26:0:
include/linux/ucb1400.h:93:19: error: field 'gc' has incomplete type
--
In file included from drivers/mfd/timberdale.c:39:0:
include/linux/spi/max7301.h:15:19: error: field 'chip' has incomplete type

vim +301 include/linux/mfd/tps65912.h

36e52873 Margarita Olaya 2011-06-09  285  
36e52873 Margarita Olaya 2011-06-09  286  struct tps65912 {
36e52873 Margarita Olaya 2011-06-09  287  	struct device *dev;
36e52873 Margarita Olaya 2011-06-09  288  	/* for read/write acces */
36e52873 Margarita Olaya 2011-06-09  289  	struct mutex io_mutex;
36e52873 Margarita Olaya 2011-06-09  290  
36e52873 Margarita Olaya 2011-06-09  291  	/* For device IO interfaces: I2C or SPI */
36e52873 Margarita Olaya 2011-06-09  292  	void *control_data;
36e52873 Margarita Olaya 2011-06-09  293  
36e52873 Margarita Olaya 2011-06-09  294  	int (*read)(struct tps65912 *tps65912, u8 reg, int size, void *dest);
36e52873 Margarita Olaya 2011-06-09  295  	int (*write)(struct tps65912 *tps65912, u8 reg, int size, void *src);
36e52873 Margarita Olaya 2011-06-09  296  
36e52873 Margarita Olaya 2011-06-09  297  	/* Client devices */
36e52873 Margarita Olaya 2011-06-09  298  	struct tps65912_pmic *pmic;
36e52873 Margarita Olaya 2011-06-09  299  
36e52873 Margarita Olaya 2011-06-09  300  	/* GPIO Handling */
36e52873 Margarita Olaya 2011-06-09 @301  	struct gpio_chip gpio;
36e52873 Margarita Olaya 2011-06-09  302  
36e52873 Margarita Olaya 2011-06-09  303  	/* IRQ Handling */
36e52873 Margarita Olaya 2011-06-09  304  	struct mutex irq_lock;
36e52873 Margarita Olaya 2011-06-09  305  	int chip_irq;
36e52873 Margarita Olaya 2011-06-09  306  	int irq_base;
36e52873 Margarita Olaya 2011-06-09  307  	int irq_num;
36e52873 Margarita Olaya 2011-06-09  308  	u32 irq_mask;
36e52873 Margarita Olaya 2011-06-09  309  };

The code at line 301 was first introduced by commit:
36e5287 mfd: tps65912: Add new mfd device


---
0-DAY kernel build testing backend         Open Source Technology Center
Fengguang Wu, Yuanhan Liu                              Intel Corporation
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On Tue, 2012-10-09 at 10:15 +0100, David Howells wrote:
> Can you merge the following branch into the parisc tree please.
> 
> This is to complete part of the UAPI disintegration for which the preparatory
> patches were pulled recently.
> 
> Now that the fixups and the asm-generic chunk have been merged, I've
> regenerated the patches to get rid of those dependencies and to take account of
> any changes made so far in the merge window.  If you have already pulled the
> older version of the branch aimed at you, then please feel free to ignore this
> request.
> 
> The following changes since commit 9e2d8656f5e8aa214e66b462680cf86b210b74a8:

I'm getting a fairly massive merge failure over our misc tree:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.0 misc

It looks like a conflict with the motion to using wrappered Kbuild for
our asm-generic clones.

James


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Subject: Re: [GIT PULL] Disintegrate UAPI for parisc [ver #2]
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James Bottomley <James.Bottomley@HansenPartnership.com> wrote:

> I'm getting a fairly massive merge failure over our misc tree:
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.0 misc
> 
> It looks like a conflict with the motion to using wrappered Kbuild for
> our asm-generic clones.

I can try merging your branch in and then disintegrating on top of that.

David
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Subject: [GIT PULL] Disintegrate UAPI for parisc [ver #3]
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Hi James,

I've regenerated the parisc bits on top of your misc branch merged onto
Linus's master branch.  Below is the revised pull request.

David
---
Can you merge the following branch into the parisc tree please?

This is to complete part of the UAPI disintegration for which the preparatory
patches were pulled recently.

Now that the fixups and the asm-generic chunk have been merged, I've
regenerated the patches to get rid of those dependencies and to take account of
any changes made so far in the merge window.  If you have already pulled the
older version of the branch aimed at you, then please feel free to ignore this
request.

The following changes since commit dd8e8c4a2c902d8350b702e7bc7c2799e5e7e331:

  thermal, cpufreq: Fix build when CPU_FREQ_TABLE isn't configured (2012-10-15 14:00:07 -0700)

are available in the git repository at:

  git://git.infradead.org/users/dhowells/linux-headers.git tags/disintegrate-parisc-20121016

for you to fetch changes up to 70c1674f62026e455c0c821fb7f4baf24d2d1139:

  UAPI: (Scripted) Disintegrate arch/parisc/include/asm (2012-10-16 21:28:05 +0100)

----------------------------------------------------------------
UAPI Disintegration 2012-10-16

----------------------------------------------------------------
David Howells (2):
      Merge branch 'misc' of git://git.kernel.org/.../jejb/parisc-2.6.git/
      UAPI: (Scripted) Disintegrate arch/parisc/include/asm

James Bottomley (1):
      [PARISC] asm: redo generic includes

 arch/parisc/include/asm/Kbuild                   |   9 +-
 arch/parisc/include/asm/auxvec.h                 |   4 -
 arch/parisc/include/asm/compat_signal.h          |   2 -
 arch/parisc/include/asm/cputime.h                |   6 -
 arch/parisc/include/asm/device.h                 |   7 -
 arch/parisc/include/asm/div64.h                  |   1 -
 arch/parisc/include/asm/emergency-restart.h      |   6 -
 arch/parisc/include/asm/hw_irq.h                 |   8 -
 arch/parisc/include/asm/irq_regs.h               |   1 -
 arch/parisc/include/asm/kdebug.h                 |   1 -
 arch/parisc/include/asm/kvm_para.h               |   1 -
 arch/parisc/include/asm/local.h                  |   1 -
 arch/parisc/include/asm/local64.h                |   1 -
 arch/parisc/include/asm/mutex.h                  |   9 -
 arch/parisc/include/asm/param.h                  |   1 -
 arch/parisc/include/asm/pdc.h                    | 423 +-----------
 arch/parisc/include/asm/percpu.h                 |   7 -
 arch/parisc/include/asm/poll.h                   |   1 -
 arch/parisc/include/asm/ptrace.h                 |  46 +-
 arch/parisc/include/asm/real.h                   |   5 -
 arch/parisc/include/asm/segment.h                |   6 -
 arch/parisc/include/asm/signal.h                 | 113 +--
 arch/parisc/include/asm/termios.h                |  41 +-
 arch/parisc/include/asm/topology.h               |   6 -
 arch/parisc/include/asm/unistd.h                 | 835 +---------------------
 arch/parisc/include/asm/user.h                   |   5 -
 arch/parisc/include/asm/vga.h                    |   6 -
 arch/parisc/include/asm/xor.h                    |   1 -
 arch/parisc/include/uapi/asm/Kbuild              |  28 +
 arch/parisc/include/{ => uapi}/asm/bitsperlong.h |   0
 arch/parisc/include/{ => uapi}/asm/byteorder.h   |   0
 arch/parisc/include/{ => uapi}/asm/errno.h       |   0
 arch/parisc/include/{ => uapi}/asm/fcntl.h       |   0
 arch/parisc/include/{ => uapi}/asm/ioctl.h       |   0
 arch/parisc/include/{ => uapi}/asm/ioctls.h      |   0
 arch/parisc/include/{ => uapi}/asm/ipcbuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/mman.h        |   0
 arch/parisc/include/{ => uapi}/asm/msgbuf.h      |   0
 arch/parisc/include/uapi/asm/pdc.h               | 427 ++++++++++++
 arch/parisc/include/{ => uapi}/asm/posix_types.h |   0
 arch/parisc/include/uapi/asm/ptrace.h            |  47 ++
 arch/parisc/include/{ => uapi}/asm/resource.h    |   0
 arch/parisc/include/{ => uapi}/asm/sembuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/setup.h       |   0
 arch/parisc/include/{ => uapi}/asm/shmbuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/sigcontext.h  |   0
 arch/parisc/include/{ => uapi}/asm/siginfo.h     |   0
 arch/parisc/include/uapi/asm/signal.h            | 118 ++++
 arch/parisc/include/{ => uapi}/asm/socket.h      |   0
 arch/parisc/include/{ => uapi}/asm/sockios.h     |   0
 arch/parisc/include/{ => uapi}/asm/stat.h        |   0
 arch/parisc/include/{ => uapi}/asm/statfs.h      |   0
 arch/parisc/include/{ => uapi}/asm/swab.h        |   0
 arch/parisc/include/{ => uapi}/asm/termbits.h    |   0
 arch/parisc/include/uapi/asm/termios.h           |  43 ++
 arch/parisc/include/{ => uapi}/asm/types.h       |   0
 arch/parisc/include/uapi/asm/unistd.h            | 837 +++++++++++++++++++++++
 57 files changed, 1511 insertions(+), 1542 deletions(-)
 delete mode 100644 arch/parisc/include/asm/auxvec.h
 delete mode 100644 arch/parisc/include/asm/compat_signal.h
 delete mode 100644 arch/parisc/include/asm/cputime.h
 delete mode 100644 arch/parisc/include/asm/device.h
 delete mode 100644 arch/parisc/include/asm/div64.h
 delete mode 100644 arch/parisc/include/asm/emergency-restart.h
 delete mode 100644 arch/parisc/include/asm/hw_irq.h
 delete mode 100644 arch/parisc/include/asm/irq_regs.h
 delete mode 100644 arch/parisc/include/asm/kdebug.h
 delete mode 100644 arch/parisc/include/asm/kvm_para.h
 delete mode 100644 arch/parisc/include/asm/local.h
 delete mode 100644 arch/parisc/include/asm/local64.h
 delete mode 100644 arch/parisc/include/asm/mutex.h
 delete mode 100644 arch/parisc/include/asm/param.h
 delete mode 100644 arch/parisc/include/asm/percpu.h
 delete mode 100644 arch/parisc/include/asm/poll.h
 delete mode 100644 arch/parisc/include/asm/real.h
 delete mode 100644 arch/parisc/include/asm/segment.h
 delete mode 100644 arch/parisc/include/asm/topology.h
 delete mode 100644 arch/parisc/include/asm/user.h
 delete mode 100644 arch/parisc/include/asm/vga.h
 delete mode 100644 arch/parisc/include/asm/xor.h
 rename arch/parisc/include/{ => uapi}/asm/bitsperlong.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/byteorder.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/errno.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/fcntl.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/ioctl.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/ioctls.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/ipcbuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/mman.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/msgbuf.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/pdc.h
 rename arch/parisc/include/{ => uapi}/asm/posix_types.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/ptrace.h
 rename arch/parisc/include/{ => uapi}/asm/resource.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/sembuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/setup.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/shmbuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/sigcontext.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/siginfo.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/signal.h
 rename arch/parisc/include/{ => uapi}/asm/socket.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/sockios.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/stat.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/statfs.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/swab.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/termbits.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/termios.h
 rename arch/parisc/include/{ => uapi}/asm/types.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/unistd.h
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From - Thu Nov 08 21:08:40 2018
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From: dann frazier <dannf@dannf.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc-linux.org down?
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On Wed, Oct 10, 2012 at 11:32:07PM -0400, Mike Frysinger wrote:
> On Wednesday 10 October 2012 21:04:35 Carlos O'Donell wrote:
> > On Wed, Oct 10, 2012 at 8:55 PM, dann frazier <dannf@dannf.org> wrote:
> > >> So it looks like the box is down, Dave, and Mike confirm.
> > >> 
> > >> Does anyone know how we manage this box?
> > > 
> > > Yes, it appears to be down. Noone is really managing the box - the
> > > consensus was to move it to a VM somewhere, but noone volunteered to
> > > do so. I'll ask someone at hp to power cycle it to see if that brings
> > > it back.
> > 
> > Thanks for reminding me of the current situation.
> > 
> > I'll see what I can do about hosting www.parisc-linux.org, and perhaps
> > changing the site design to be something as simple as a wiki on an EC2
> > instance.
> 
> how big is the site ?  we host some of our medium-sized open source projects 
> on VMs provided by OSUOSL.  maybe worth contacting since the price is right ? 
> (i.e. free ;])
> 
> although i really appreciate having sites be hosted by the things they espouse 
> (hppa in this case), but i can see that geek factor being less important than 
> an available site.

fyi, parisc-linux.org is back after a power cycle - so data should be
available if someone wants to look at the OSUOSL-like options :)


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From - Thu Nov 08 21:08:40 2018
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From: Mike Frysinger <vapier@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc-linux.org down?
Date: Thu, 18 Oct 2012 15:21:50 -0400
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To: dann frazier <dannf@dannf.org>
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On Wednesday 17 October 2012 17:48:15 dann frazier wrote:
> On Wed, Oct 10, 2012 at 11:32:07PM -0400, Mike Frysinger wrote:
> > On Wednesday 10 October 2012 21:04:35 Carlos O'Donell wrote:
> > > On Wed, Oct 10, 2012 at 8:55 PM, dann frazier wrote:
> > > >> So it looks like the box is down, Dave, and Mike confirm.
> > > >>=20
> > > >> Does anyone know how we manage this box?
> > > >=20
> > > > Yes, it appears to be down. Noone is really managing the box - the
> > > > consensus was to move it to a VM somewhere, but noone volunteered to
> > > > do so. I'll ask someone at hp to power cycle it to see if that brin=
gs
> > > > it back.
> > >=20
> > > Thanks for reminding me of the current situation.
> > >=20
> > > I'll see what I can do about hosting www.parisc-linux.org, and perhaps
> > > changing the site design to be something as simple as a wiki on an EC2
> > > instance.
> >=20
> > how big is the site ?  we host some of our medium-sized open source
> > projects on VMs provided by OSUOSL.  maybe worth contacting since the
> > price is right ? (i.e. free ;])
> >=20
> > although i really appreciate having sites be hosted by the things they
> > espouse (hppa in this case), but i can see that geek factor being less
> > important than an available site.
>=20
> fyi, parisc-linux.org is back after a power cycle - so data should be
> available if someone wants to look at the OSUOSL-like options :)

what resources does parisc-linux.org provide nowadays ?  seems like mailing=
=20
lists and git have moved to kernel.org.  that leaves web site and wiki ?  a=
nd=20
it might be advantageous to merge those into a single wiki ?
=2Dmike

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From - Thu Nov 08 21:08:40 2018
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X-Mozilla-Keys:                                                                                 
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From: Carlos O'Donell <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc-linux.org down?
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On 10/18/2012 3:21 PM, Mike Frysinger wrote:
> On Wednesday 17 October 2012 17:48:15 dann frazier wrote:
>> On Wed, Oct 10, 2012 at 11:32:07PM -0400, Mike Frysinger wrote:
>>> On Wednesday 10 October 2012 21:04:35 Carlos O'Donell wrote:
>>>> On Wed, Oct 10, 2012 at 8:55 PM, dann frazier wrote:
>>>>>> So it looks like the box is down, Dave, and Mike confirm.
>>>>>>
>>>>>> Does anyone know how we manage this box?
>>>>>
>>>>> Yes, it appears to be down. Noone is really managing the box - the
>>>>> consensus was to move it to a VM somewhere, but noone volunteered to
>>>>> do so. I'll ask someone at hp to power cycle it to see if that brings
>>>>> it back.
>>>>
>>>> Thanks for reminding me of the current situation.
>>>>
>>>> I'll see what I can do about hosting www.parisc-linux.org, and perhaps
>>>> changing the site design to be something as simple as a wiki on an EC2
>>>> instance.
>>>
>>> how big is the site ?  we host some of our medium-sized open source
>>> projects on VMs provided by OSUOSL.  maybe worth contacting since the
>>> price is right ? (i.e. free ;])
>>>
>>> although i really appreciate having sites be hosted by the things they
>>> espouse (hppa in this case), but i can see that geek factor being less
>>> important than an available site.
>>
>> fyi, parisc-linux.org is back after a power cycle - so data should be
>> available if someone wants to look at the OSUOSL-like options :)
> 
> what resources does parisc-linux.org provide nowadays ?  seems like mailing 
> lists and git have moved to kernel.org.  that leaves web site and wiki ?  and 
> it might be advantageous to merge those into a single wiki ?
> -mike
> 

Static files, and cvs.

The cvs can go, everything is done upstream, and some minor tools like the
cool disasm tool can be made available on the wiki as it's just a small program.

The static files, like manuals and things we should keep as links in the wiki.

I would be very happy with a single moinmoin wiki.

Cheers,
Carlos.
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From - Thu Nov 08 21:08:40 2018
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From: Joe Perches <joe-6d6DIl74uiNBDgjK7y7TUQ@public.gmane.org>
Newsgroups: gmane.network.openvswitch.devel,gmane.linux.davinci,gmane.linux.ports.arm.kernel,gmane.linux.drivers.rdma,gmane.linux.network,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.ppc64.devel,gmane.linux.drivers.e1000.devel,gmane.linux.usb.general,gmane.linux.kernel.wimax,gmane.linux.kernel.wireless.general,gmane.linux.drivers.ath9k.devel,gmane.linux.drivers.bcm54xx.devel,gmane.linux.drivers.rt2x00.user,gmane.linux.drivers.devicetree,gmane.linux.ports.parisc,gmane.linux.scsi,gmane.linux.scsi.open-fcoe.devel,gmane.linux.nfs,gmane.org.freifunk.batman,gmane.comp.security.firewalls.netfilter.devel,gmane.comp.security.firewalls.netfilter.general,gmane.comp.linux.lvs.devel,gmane.linux.ports.mips.general,gmane.linux.uml.devel,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.uml.user
Subject: [PATCH net-next 00/21] treewide: Use consistent api style
	for address testing
Date: Thu, 18 Oct 2012 20:55:31 -0700
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ethernet, ipv4, and ipv6 address testing uses 3 different api naming styles.

ethernet uses:	is_<foo>_ether_addr
ipv4 uses:	ipv4_is_<foo>
ipv6 uses:	ipv6_addr_<foo>

Standardize on the ipv6 style of <prefix>_addr_<type> to reduce
the number of styles to remember.

The new consistent styles are:

eth_addr_<foo>(const u8 *)
ipv4_addr_<foo>(__be32)
ipv6_addr_<foo>(const struct in6_addr *)

Add temporary backward compatibility #defines for the old names too.

Joe Perches (21):
  etherdevice: Rename is_<foo>_ether_addr tests to eth_addr_<foo>
  net: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
  arch: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
  wireless: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
  drivers: net: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
  staging: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
  infiniband: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
  scsi: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
  of: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
  s390: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
  usb: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
  uwb: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
  Documentation: networking: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
  llc_if.h: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
  in.h: Rename ipv4_is_<foo> functions to ipv4_addr_<foo>
  net: Convert ipv4_is_<foo> uses to ipv4_addr_<foo>
  infiniband: Convert ipv4_is_<foo> uses to ipv4_addr_<foo>
  ath6kl: Convert ipv4_is_<foo> uses to ipv4_addr_<foo>
  parisc: Convert ipv4_is_<foo> uses to ipv4_addr_<foo>
  lockd: Convert ipv4_is_<foo> uses to ipv4_addr_<foo>
  sctp: Convert ipv4_is_<foo> uses to ipv4_addr_<foo>

 Documentation/networking/driver.txt                |    2 +-
 arch/arm/mach-davinci/board-mityomapl138.c         |    2 +-
 arch/arm/mach-pxa/colibri-pxa3xx.c                 |    2 +-
 arch/avr32/boards/atngw100/setup.c                 |    2 +-
 arch/avr32/boards/atstk1000/atstk1002.c            |    2 +-
 arch/avr32/boards/favr-32/setup.c                  |    2 +-
 arch/avr32/boards/hammerhead/setup.c               |    2 +-
 arch/avr32/boards/merisc/setup.c                   |    2 +-
 arch/avr32/boards/mimc200/setup.c                  |    2 +-
 arch/mips/alchemy/common/platform.c                |    4 +-
 arch/um/drivers/net_kern.c                         |    6 +-
 drivers/infiniband/core/cma.c                      |    4 +-
 drivers/infiniband/hw/amso1100/c2.c                |    2 +-
 drivers/infiniband/hw/nes/nes_nic.c                |    2 +-
 drivers/net/bonding/bond_3ad.c                     |    2 +-
 drivers/net/bonding/bond_alb.c                     |    2 +-
 drivers/net/bonding/bond_main.c                    |    6 +-
 drivers/net/dummy.c                                |    2 +-
 drivers/net/ethernet/3com/3c59x.c                  |    2 +-
 drivers/net/ethernet/3com/typhoon.c                |    2 +-
 drivers/net/ethernet/8390/etherh.c                 |    2 +-
 drivers/net/ethernet/adi/bfin_mac.c                |    6 +-
 drivers/net/ethernet/aeroflex/greth.c              |    4 +-
 drivers/net/ethernet/amd/au1000_eth.c              |    2 +-
 drivers/net/ethernet/amd/depca.c                   |    4 +-
 drivers/net/ethernet/amd/pcnet32.c                 |    8 ++--
 drivers/net/ethernet/atheros/atl1c/atl1c_hw.c      |    2 +-
 drivers/net/ethernet/atheros/atl1c/atl1c_main.c    |    2 +-
 drivers/net/ethernet/atheros/atl1e/atl1e_hw.c      |    4 +-
 drivers/net/ethernet/atheros/atl1e/atl1e_main.c    |    2 +-
 drivers/net/ethernet/atheros/atlx/atl1.c           |   10 ++--
 drivers/net/ethernet/atheros/atlx/atl2.c           |   14 +++---
 drivers/net/ethernet/atheros/atlx/atlx.c           |    2 +-
 drivers/net/ethernet/broadcom/b44.c                |    4 +-
 drivers/net/ethernet/broadcom/bnx2.c               |    2 +-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c    |    6 +-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h    |    4 +-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c   |    6 +-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c     |    2 +-
 drivers/net/ethernet/broadcom/cnic.c               |    2 +-
 drivers/net/ethernet/broadcom/tg3.c                |    6 +-
 drivers/net/ethernet/brocade/bna/bnad.c            |    6 +-
 drivers/net/ethernet/cadence/at91_ether.c          |    6 +-
 drivers/net/ethernet/cadence/macb.c                |    4 +-
 drivers/net/ethernet/calxeda/xgmac.c               |    6 +-
 drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c    |    2 +-
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c    |    2 +-
 .../net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c    |    2 +-
 drivers/net/ethernet/cirrus/ep93xx_eth.c           |    2 +-
 drivers/net/ethernet/cirrus/mac89x0.c              |    2 +-
 drivers/net/ethernet/cisco/enic/enic_dev.c         |    4 +-
 drivers/net/ethernet/cisco/enic/enic_main.c        |   10 ++--
 drivers/net/ethernet/cisco/enic/enic_pp.c          |   10 ++--
 drivers/net/ethernet/davicom/dm9000.c              |    6 +-
 drivers/net/ethernet/dec/ewrk3.c                   |    4 +-
 drivers/net/ethernet/dec/tulip/de4x5.c             |    4 +-
 drivers/net/ethernet/dlink/sundance.c              |    2 +-
 drivers/net/ethernet/dnet.c                        |    6 +-
 drivers/net/ethernet/emulex/benet/be_main.c        |    8 ++--
 drivers/net/ethernet/ethoc.c                       |    6 +-
 drivers/net/ethernet/faraday/ftgmac100.c           |    2 +-
 drivers/net/ethernet/faraday/ftmac100.c            |    2 +-
 drivers/net/ethernet/freescale/fec.c               |    8 ++--
 drivers/net/ethernet/freescale/fec_mpc52xx.c       |    2 +-
 drivers/net/ethernet/freescale/gianfar_ethtool.c   |   12 ++--
 drivers/net/ethernet/freescale/ucc_geth.c          |    2 +-
 drivers/net/ethernet/i825xx/ether1.c               |    2 +-
 drivers/net/ethernet/ibm/ehea/ehea_main.c          |    4 +-
 drivers/net/ethernet/intel/e100.c                  |    4 +-
 drivers/net/ethernet/intel/e1000/e1000_main.c      |    4 +-
 drivers/net/ethernet/intel/e1000e/mac.c            |    2 +-
 drivers/net/ethernet/intel/e1000e/netdev.c         |    4 +-
 drivers/net/ethernet/intel/igb/e1000_mac.c         |    2 +-
 drivers/net/ethernet/intel/igb/igb_main.c          |    8 ++--
 drivers/net/ethernet/intel/igbvf/netdev.c          |    6 +-
 drivers/net/ethernet/intel/ixgb/ixgb_hw.c          |    6 +-
 drivers/net/ethernet/intel/ixgb/ixgb_main.c        |    6 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c      |    2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c      |   14 +++---
 drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c     |    6 +-
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c  |    8 ++--
 drivers/net/ethernet/lantiq_etop.c                 |    2 +-
 drivers/net/ethernet/marvell/mv643xx_eth.c         |    4 +-
 drivers/net/ethernet/marvell/pxa168_eth.c          |    2 +-
 drivers/net/ethernet/marvell/skge.c                |    6 +-
 drivers/net/ethernet/marvell/sky2.c                |    2 +-
 drivers/net/ethernet/mellanox/mlx4/en_netdev.c     |    2 +-
 .../net/ethernet/mellanox/mlx4/resource_tracker.c  |    4 +-
 drivers/net/ethernet/micrel/ks8695net.c            |    6 +-
 drivers/net/ethernet/micrel/ks8842.c               |    4 +-
 drivers/net/ethernet/micrel/ks8851.c               |    4 +-
 drivers/net/ethernet/micrel/ks8851_mll.c           |    2 +-
 drivers/net/ethernet/microchip/enc28j60.c          |    4 +-
 drivers/net/ethernet/myricom/myri10ge/myri10ge.c   |    2 +-
 drivers/net/ethernet/neterion/s2io.c               |    2 +-
 drivers/net/ethernet/neterion/vxge/vxge-config.c   |    2 +-
 drivers/net/ethernet/neterion/vxge/vxge-main.c     |   12 ++--
 drivers/net/ethernet/netx-eth.c                    |    2 +-
 drivers/net/ethernet/nuvoton/w90p910_ether.c       |    4 +-
 drivers/net/ethernet/nvidia/forcedeth.c            |    4 +-
 drivers/net/ethernet/nxp/lpc_eth.c                 |    8 ++--
 drivers/net/ethernet/octeon/octeon_mgmt.c          |    2 +-
 .../net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c   |    6 +-
 drivers/net/ethernet/pasemi/pasemi_mac.c           |    4 +-
 .../net/ethernet/qlogic/netxen/netxen_nic_main.c   |    4 +-
 drivers/net/ethernet/qlogic/qla3xxx.c              |    2 +-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c   |    4 +-
 drivers/net/ethernet/qlogic/qlge/qlge_main.c       |    6 +-
 drivers/net/ethernet/realtek/8139cp.c              |    2 +-
 drivers/net/ethernet/realtek/8139too.c             |    2 +-
 drivers/net/ethernet/realtek/r8169.c               |    2 +-
 drivers/net/ethernet/renesas/sh_eth.c              |    4 +-
 drivers/net/ethernet/seeq/ether3.c                 |    2 +-
 drivers/net/ethernet/sfc/efx.c                     |    2 +-
 drivers/net/ethernet/sfc/ethtool.c                 |    6 +-
 drivers/net/ethernet/sfc/siena_sriov.c             |    6 +-
 drivers/net/ethernet/sis/sis900.c                  |    2 +-
 drivers/net/ethernet/smsc/smc911x.c                |    4 +-
 drivers/net/ethernet/smsc/smc91x.c                 |    4 +-
 drivers/net/ethernet/smsc/smsc911x.c               |   10 ++--
 drivers/net/ethernet/smsc/smsc9420.c               |    6 +-
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c  |    4 +-
 drivers/net/ethernet/sun/niu.c                     |    8 ++--
 drivers/net/ethernet/sun/sungem.c                  |    2 +-
 drivers/net/ethernet/ti/cpsw.c                     |    2 +-
 drivers/net/ethernet/ti/davinci_emac.c             |    6 +-
 drivers/net/ethernet/tile/tilegx.c                 |    4 +-
 drivers/net/ethernet/tile/tilepro.c                |    4 +-
 drivers/net/ethernet/toshiba/ps3_gelic_net.c       |    2 +-
 drivers/net/ethernet/toshiba/ps3_gelic_wireless.c  |    2 +-
 drivers/net/ethernet/toshiba/spider_net.c          |    4 +-
 drivers/net/ethernet/toshiba/tc35815.c             |    4 +-
 drivers/net/ethernet/tundra/tsi108_eth.c           |    8 ++--
 drivers/net/ethernet/via/via-rhine.c               |    2 +-
 drivers/net/ethernet/wiznet/w5100.c                |    6 +-
 drivers/net/ethernet/wiznet/w5300.c                |    6 +-
 drivers/net/ethernet/xilinx/ll_temac_main.c        |    2 +-
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c  |    2 +-
 drivers/net/hamradio/bpqether.c                    |    2 +-
 drivers/net/ifb.c                                  |    2 +-
 drivers/net/macvlan.c                              |   16 +++---
 drivers/net/phy/at803x.c                           |    2 +-
 drivers/net/rionet.c                               |    4 +-
 drivers/net/team/team.c                            |    4 +-
 drivers/net/tun.c                                  |    4 +-
 drivers/net/usb/asix_common.c                      |    2 +-
 drivers/net/usb/dm9601.c                           |    4 +-
 drivers/net/usb/mcs7830.c                          |    2 +-
 drivers/net/usb/smsc75xx.c                         |    2 +-
 drivers/net/usb/smsc95xx.c                         |    2 +-
 drivers/net/veth.c                                 |    2 +-
 drivers/net/vxlan.c                                |    4 +-
 drivers/net/wimax/i2400m/driver.c                  |    2 +-
 drivers/net/wireless/adm8211.c                     |    2 +-
 drivers/net/wireless/airo.c                        |    4 +-
 drivers/net/wireless/at76c50x-usb.c                |    8 ++--
 drivers/net/wireless/ath/ath6kl/cfg80211.c         |    8 ++--
 drivers/net/wireless/ath/ath6kl/main.c             |    8 ++--
 drivers/net/wireless/ath/ath6kl/txrx.c             |   10 ++--
 drivers/net/wireless/ath/ath6kl/wmi.c              |    4 +-
 drivers/net/wireless/ath/ath9k/recv.c              |    8 ++--
 drivers/net/wireless/b43/main.c                    |    2 +-
 drivers/net/wireless/b43legacy/main.c              |    2 +-
 .../net/wireless/brcm80211/brcmfmac/dhd_linux.c    |    4 +-
 .../net/wireless/brcm80211/brcmfmac/wl_cfg80211.c  |    2 +-
 .../net/wireless/brcm80211/brcmsmac/mac80211_if.c  |    2 +-
 drivers/net/wireless/brcm80211/brcmsmac/main.c     |   16 +++---
 drivers/net/wireless/hostap/hostap_info.c          |    2 +-
 drivers/net/wireless/hostap/hostap_ioctl.c         |    8 ++--
 drivers/net/wireless/hostap/hostap_main.c          |    2 +-
 drivers/net/wireless/ipw2x00/ipw2100.c             |    6 +-
 drivers/net/wireless/ipw2x00/ipw2200.c             |   18 +++---
 drivers/net/wireless/ipw2x00/libipw_rx.c           |   12 ++--
 drivers/net/wireless/ipw2x00/libipw_tx.c           |    4 +-
 drivers/net/wireless/iwlegacy/3945-mac.c           |    2 +-
 drivers/net/wireless/iwlegacy/4965-mac.c           |    2 +-
 drivers/net/wireless/iwlegacy/common.c             |    2 +-
 drivers/net/wireless/iwlwifi/dvm/sta.c             |    2 +-
 drivers/net/wireless/libertas_tf/main.c            |    2 +-
 drivers/net/wireless/mwifiex/join.c                |    2 +-
 drivers/net/wireless/mwifiex/scan.c                |    2 +-
 drivers/net/wireless/mwifiex/sta_cmd.c             |    2 +-
 drivers/net/wireless/mwifiex/sta_cmdresp.c         |    2 +-
 drivers/net/wireless/mwifiex/uap_txrx.c            |    2 +-
 drivers/net/wireless/mwl8k.c                       |    2 +-
 drivers/net/wireless/orinoco/wext.c                |    4 +-
 drivers/net/wireless/p54/eeprom.c                  |    2 +-
 drivers/net/wireless/rndis_wlan.c                  |   18 +++---
 drivers/net/wireless/rt2x00/rt2400pci.c            |    2 +-
 drivers/net/wireless/rt2x00/rt2500pci.c            |    2 +-
 drivers/net/wireless/rt2x00/rt2500usb.c            |    2 +-
 drivers/net/wireless/rt2x00/rt2800lib.c            |    8 ++--
 drivers/net/wireless/rt2x00/rt61pci.c              |    2 +-
 drivers/net/wireless/rt2x00/rt73usb.c              |    2 +-
 drivers/net/wireless/rtl818x/rtl8180/dev.c         |    4 +-
 drivers/net/wireless/rtl818x/rtl8187/dev.c         |    4 +-
 drivers/net/wireless/rtlwifi/base.c                |    6 +-
 drivers/net/wireless/rtlwifi/cam.c                 |    2 +-
 drivers/net/wireless/rtlwifi/pci.c                 |    8 ++--
 drivers/net/wireless/rtlwifi/rc.c                  |    4 +-
 drivers/net/wireless/rtlwifi/rtl8192ce/trx.c       |    4 +-
 drivers/net/wireless/rtlwifi/rtl8192cu/trx.c       |    4 +-
 drivers/net/wireless/rtlwifi/usb.c                 |   12 ++--
 drivers/net/wireless/ti/wl1251/main.c              |   12 ++--
 drivers/net/wireless/ti/wlcore/cmd.c               |    2 +-
 drivers/net/wireless/ti/wlcore/main.c              |    6 +-
 drivers/net/wireless/ti/wlcore/tx.c                |    2 +-
 drivers/net/wireless/wl3501_cs.c                   |    2 +-
 drivers/net/wireless/zd1211rw/zd_mac.c             |    2 +-
 drivers/of/of_net.c                                |    6 +-
 drivers/parisc/led.c                               |    2 +-
 drivers/s390/net/qeth_l2_main.c                    |    4 +-
 drivers/scsi/bnx2fc/bnx2fc_els.c                   |    4 +-
 drivers/scsi/bnx2fc/bnx2fc_fcoe.c                  |    2 +-
 drivers/scsi/fcoe/fcoe.c                           |   12 ++--
 drivers/scsi/fcoe/fcoe_ctlr.c                      |    8 ++--
 drivers/scsi/fnic/fnic_fcs.c                       |    6 +-
 drivers/staging/ccg/u_ether.c                      |    6 +-
 drivers/staging/csr/sme_wext.c                     |    2 +-
 drivers/staging/et131x/et131x.c                    |    4 +-
 drivers/staging/gdm72xx/gdm_wimax.c                |    2 +-
 drivers/staging/octeon/ethernet.c                  |    2 +-
 drivers/staging/ozwpan/ozcdev.c                    |    2 +-
 .../rtl8187se/ieee80211/ieee80211_softmac.c        |    2 +-
 .../rtl8187se/ieee80211/ieee80211_softmac_wx.c     |    2 +-
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c |    2 +-
 drivers/staging/rtl8187se/r8180_core.c             |    2 +-
 drivers/staging/rtl8192e/rtl8192e/rtl_core.c       |    6 +-
 drivers/staging/rtl8192e/rtl819x_TSProc.c          |    2 +-
 drivers/staging/rtl8192e/rtllib_rx.c               |    8 ++--
 drivers/staging/rtl8192e/rtllib_softmac.c          |    4 +-
 drivers/staging/rtl8192e/rtllib_softmac_wx.c       |    4 +-
 drivers/staging/rtl8192e/rtllib_tx.c               |   12 ++--
 drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c  |    4 +-
 .../staging/rtl8192u/ieee80211/ieee80211_softmac.c |    2 +-
 .../rtl8192u/ieee80211/ieee80211_softmac_wx.c      |    2 +-
 drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c  |   12 ++--
 .../staging/rtl8192u/ieee80211/rtl819x_TSProc.c    |    2 +-
 drivers/staging/rtl8192u/r8192U_core.c             |    8 ++--
 drivers/staging/rtl8712/rtl871x_ioctl_linux.c      |    2 +-
 drivers/staging/rtl8712/rtl871x_ioctl_set.c        |    2 +-
 drivers/staging/rtl8712/rtl871x_mlme.c             |    2 +-
 drivers/staging/rtl8712/rtl871x_recv.c             |    8 ++--
 drivers/staging/slicoss/slicoss.c                  |    2 +-
 drivers/staging/vt6655/bssdb.c                     |    2 +-
 drivers/staging/vt6655/card.c                      |    2 +-
 drivers/staging/vt6655/device_main.c               |    2 +-
 drivers/staging/vt6655/dpc.c                       |    4 +-
 drivers/staging/vt6655/hostap.c                    |    4 +-
 drivers/staging/vt6655/iwctl.c                     |    2 +-
 drivers/staging/vt6655/key.c                       |    2 +-
 drivers/staging/vt6655/mib.c                       |    8 ++--
 drivers/staging/vt6655/rxtx.c                      |   10 ++--
 drivers/staging/vt6655/wpactl.c                    |    4 +-
 drivers/staging/vt6656/bssdb.c                     |    2 +-
 drivers/staging/vt6656/dpc.c                       |    4 +-
 drivers/staging/vt6656/hostap.c                    |    4 +-
 drivers/staging/vt6656/iwctl.c                     |    2 +-
 drivers/staging/vt6656/key.c                       |    2 +-
 drivers/staging/vt6656/rxtx.c                      |   14 +++---
 drivers/staging/vt6656/wpactl.c                    |    2 +-
 drivers/staging/wlags49_h2/wl_wext.c               |    2 +-
 drivers/usb/gadget/u_ether.c                       |    6 +-
 drivers/uwb/address.c                              |    2 +-
 include/linux/etherdevice.h                        |   36 ++++++++-----
 include/linux/in.h                                 |   40 ++++++++++----
 include/linux/lockd/lockd.h                        |    4 +-
 include/net/llc_if.h                               |    4 +-
 include/net/sctp/constants.h                       |   12 ++--
 net/802/stp.c                                      |    4 +-
 net/8021q/vlan_dev.c                               |    6 +-
 net/8021q/vlan_netlink.c                           |    2 +-
 net/batman-adv/bat_iv_ogm.c                        |    2 +-
 net/batman-adv/bridge_loop_avoidance.c             |    8 ++--
 net/batman-adv/routing.c                           |   20 ++++----
 net/batman-adv/soft-interface.c                    |    4 +-
 net/batman-adv/unicast.c                           |    2 +-
 net/batman-adv/vis.c                               |    4 +-
 net/bridge/br_device.c                             |    6 +-
 net/bridge/br_fdb.c                                |    2 +-
 net/bridge/br_if.c                                 |    2 +-
 net/bridge/br_input.c                              |    8 ++--
 net/bridge/br_multicast.c                          |    4 +-
 net/bridge/br_netlink.c                            |    2 +-
 net/core/netpoll.c                                 |    2 +-
 net/core/pktgen.c                                  |   14 +++---
 net/core/rtnetlink.c                               |    2 +-
 net/dsa/slave.c                                    |    2 +-
 net/ethernet/eth.c                                 |    6 +-
 net/ipv4/arp.c                                     |    4 +-
 net/ipv4/datagram.c                                |    2 +-
 net/ipv4/devinet.c                                 |    4 +-
 net/ipv4/fib_frontend.c                            |   12 ++--
 net/ipv4/igmp.c                                    |   12 ++--
 net/ipv4/ip_gre.c                                  |   22 ++++----
 net/ipv4/ipmr.c                                    |    4 +-
 net/ipv4/netfilter/ipt_rpfilter.c                  |   10 ++--
 net/ipv4/ping.c                                    |    2 +-
 net/ipv4/raw.c                                     |    2 +-
 net/ipv4/route.c                                   |   58 ++++++++++----------
 net/ipv4/udp.c                                     |    2 +-
 net/ipv6/addrconf.c                                |   12 ++--
 net/ipv6/ip6_gre.c                                 |    2 +-
 net/l2tp/l2tp_ip.c                                 |    2 +-
 net/l2tp/l2tp_ip6.c                                |    2 +-
 net/mac80211/cfg.c                                 |    2 +-
 net/mac80211/ibss.c                                |    8 ++--
 net/mac80211/ieee80211_i.h                         |    2 +-
 net/mac80211/iface.c                               |   12 ++--
 net/mac80211/mesh.c                                |    2 +-
 net/mac80211/mesh_hwmp.c                           |    4 +-
 net/mac80211/mesh_pathtbl.c                        |    4 +-
 net/mac80211/mesh_plink.c                          |    2 +-
 net/mac80211/mlme.c                                |    4 +-
 net/mac80211/rx.c                                  |   50 +++++++++---------
 net/mac80211/sta_info.c                            |    2 +-
 net/mac80211/status.c                              |    6 +-
 net/mac80211/tx.c                                  |   22 ++++----
 net/mac80211/wme.c                                 |    4 +-
 net/netfilter/ipvs/ip_vs_xmit.c                    |    6 +-
 net/netfilter/xt_cluster.c                         |    2 +-
 net/netfilter/xt_pkttype.c                         |    2 +-
 net/openvswitch/flow.c                             |    4 +-
 net/openvswitch/vport-internal_dev.c               |    2 +-
 net/sctp/protocol.c                                |   10 ++--
 net/wireless/core.c                                |    2 +-
 net/wireless/ibss.c                                |    2 +-
 net/wireless/nl80211.c                             |    4 +-
 net/wireless/util.c                                |    4 +-
 net/wireless/wext-compat.c                         |    2 +-
 net/wireless/wext-sme.c                            |    2 +-
 331 files changed, 833 insertions(+), 809 deletions(-)

-- 
1.7.8.111.gad25c.dirty


From - Thu Nov 08 21:08:41 2018
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From: Eric Dumazet <eric.dumazet@gmail.com>
Newsgroups: gmane.linux.network.bridge,gmane.linux.ports.mips.general,gmane.linux.usb.general,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.scsi.open-fcoe.devel,gmane.network.openvswitch.devel,gmane.linux.uml.devel,gmane.linux.scsi,gmane.linux.drivers.rdma,gmane.comp.linux.lvs.devel,gmane.linux.drivers.bcm54xx.devel,gmane.linux.kernel.wimax,gmane.linux.drivers.devicetree,gmane.linux.nfs,gmane.comp.security.firewalls.netfilter.general,gmane.linux.uml.user,gmane.linux.ports.arm.kernel,gmane.linux.davinci,gmane.linux.ports.parisc,gmane.linux.network,gmane.org.freifunk.batman,gmane.linux.kernel.wireless.general,gmane.linux.drivers.rt2x00.user,gmane.linux.drivers.e1000.devel,gmane.linux.drivers.ath9k.devel,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH net-next 00/21] treewide: Use consistent api
 style for address testing
Date: Fri, 19 Oct 2012 09:04:14 +0200
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Approved: news@gmane.org
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Cc: linux-mips@linux-mips.org, linux-usb@vger.kernel.org,
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To: Joe Perches <joe@perches.com>
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On Thu, 2012-10-18 at 20:55 -0700, Joe Perches wrote:
> ethernet, ipv4, and ipv6 address testing uses 3 different api naming styles.
> 
> ethernet uses:	is_<foo>_ether_addr
> ipv4 uses:	ipv4_is_<foo>
> ipv6 uses:	ipv6_addr_<foo>
> 
> Standardize on the ipv6 style of <prefix>_addr_<type> to reduce
> the number of styles to remember.
> 
> The new consistent styles are:
> 
> eth_addr_<foo>(const u8 *)
> ipv4_addr_<foo>(__be32)
> ipv6_addr_<foo>(const struct in6_addr *)
> 
> Add temporary backward compatibility #defines for the old names too.
> 
> Joe Perches (21):
>   etherdevice: Rename is_<foo>_ether_addr tests to eth_addr_<foo>
>   net: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
>   arch: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
>   wireless: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
>   drivers: net: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
>   staging: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
>   infiniband: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
>   scsi: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
>   of: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
>   s390: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
>   usb: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
>   uwb: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
>   Documentation: networking: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
>   llc_if.h: Convert is_<foo>_ether_addr uses to eth_addr_<foo>
>   in.h: Rename ipv4_is_<foo> functions to ipv4_addr_<foo>
>   net: Convert ipv4_is_<foo> uses to ipv4_addr_<foo>
>   infiniband: Convert ipv4_is_<foo> uses to ipv4_addr_<foo>
>   ath6kl: Convert ipv4_is_<foo> uses to ipv4_addr_<foo>
>   parisc: Convert ipv4_is_<foo> uses to ipv4_addr_<foo>
>   lockd: Convert ipv4_is_<foo> uses to ipv4_addr_<foo>
>   sctp: Convert ipv4_is_<foo> uses to ipv4_addr_<foo>

Yes they are some names discrepancies, thats a big deal.

And we have alloc_skb() / kfree_skb() / skb_clone() 

Why not skb_alloc() / skb_free() / skb_clone() ?

Some people actually know current code by name of functions, they dont
want to change their mind and having to grep include files and git log
to learn the new names of an old function, especially when traveling and
using a laptop.

Sure, when we want to use eth_random_addr(), a grep into include files
to check if its still the right name (old one was random_ether_addr())
is OK because we dont use this one often.

If you think about it, eth_random_addr() was not the perfect name.

Think about all the documentation you can find outside of kernel tree,
RFC and things like that, copy/pasting some linux kernel code.

This kind of changes make our life more difficult, when we have to
backport patches or rebase code, or even perform some searches to find
prior issues/discussions.

Life of a kernel developer is not only dealing with latest Linus (or
-next) tree, and using automatic 'tools'.

Thats a real pain for me at least.





From - Thu Nov 08 21:08:41 2018
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Subject: Re: [ath9k-devel] [PATCH net-next 00/21] treewide: Use
 consistent api style for address testing
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To: Eric Dumazet <eric.dumazet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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On Fri, 19 Oct 2012 09:04:14 +0200
Eric Dumazet <eric.dumazet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

> Yes they are some names discrepancies, thats a big deal.
> 
> And we have alloc_skb() / kfree_skb() / skb_clone() 
> 
> Why not skb_alloc() / skb_free() / skb_clone() ?
> 
> Some people actually know current code by name of functions, they dont
> want to change their mind and having to grep include files and git log
> to learn the new names of an old function, especially when traveling
> and using a laptop.

I agree.

Also, it makes sense to introduce a more consistent name for a function
when it's improved in some way and the callers need to be adjusted or
re-checked.

That way, the old name can be phased out as the code is made compatible
with the new function.

-- 
Regards,
Pavel Roskin

From - Thu Nov 08 21:08:41 2018
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Subject: [GIT PULL] parisc high code motion changes for 3.7-rc1
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This is a couple of high code motion patches (all within arch/parisc)
I'd like to apply at -rc1 to avoid conflicts with anything else.  One
moves us on to the generated instead of included asm file model and the
other is a pull request from David Howells for UAPI disintegration.

The patches are here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git parisc-for-linus

The short changelog is:

David Howells (1):
      UAPI: (Scripted) Disintegrate arch/parisc/include/asm

James Bottomley (1):
      asm: redo generic includes

The diffstat is:

 arch/parisc/include/asm/Kbuild                   |   9 +-
 arch/parisc/include/asm/auxvec.h                 |   4 -
 arch/parisc/include/asm/compat_signal.h          |   2 -
 arch/parisc/include/asm/cputime.h                |   6 -
 arch/parisc/include/asm/device.h                 |   7 -
 arch/parisc/include/asm/div64.h                  |   1 -
 arch/parisc/include/asm/emergency-restart.h      |   6 -
 arch/parisc/include/asm/hw_irq.h                 |   8 -
 arch/parisc/include/asm/irq_regs.h               |   1 -
 arch/parisc/include/asm/kdebug.h                 |   1 -
 arch/parisc/include/asm/kvm_para.h               |   1 -
 arch/parisc/include/asm/local.h                  |   1 -
 arch/parisc/include/asm/local64.h                |   1 -
 arch/parisc/include/asm/mutex.h                  |   9 -
 arch/parisc/include/asm/param.h                  |   1 -
 arch/parisc/include/asm/pdc.h                    | 423 +-----------
 arch/parisc/include/asm/percpu.h                 |   7 -
 arch/parisc/include/asm/poll.h                   |   1 -
 arch/parisc/include/asm/ptrace.h                 |  46 +-
 arch/parisc/include/asm/real.h                   |   5 -
 arch/parisc/include/asm/segment.h                |   6 -
 arch/parisc/include/asm/signal.h                 | 113 +--
 arch/parisc/include/asm/termios.h                |  41 +-
 arch/parisc/include/asm/topology.h               |   6 -
 arch/parisc/include/asm/unistd.h                 | 835 +---------------------
 arch/parisc/include/asm/user.h                   |   5 -
 arch/parisc/include/asm/vga.h                    |   6 -
 arch/parisc/include/asm/xor.h                    |   1 -
 arch/parisc/include/uapi/asm/Kbuild              |  28 +
 arch/parisc/include/{ => uapi}/asm/bitsperlong.h |   0
 arch/parisc/include/{ => uapi}/asm/byteorder.h   |   0
 arch/parisc/include/{ => uapi}/asm/errno.h       |   0
 arch/parisc/include/{ => uapi}/asm/fcntl.h       |   0
 arch/parisc/include/{ => uapi}/asm/ioctl.h       |   0
 arch/parisc/include/{ => uapi}/asm/ioctls.h      |   0
 arch/parisc/include/{ => uapi}/asm/ipcbuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/mman.h        |   0
 arch/parisc/include/{ => uapi}/asm/msgbuf.h      |   0
 arch/parisc/include/uapi/asm/pdc.h               | 427 ++++++++++++
 arch/parisc/include/{ => uapi}/asm/posix_types.h |   0
 arch/parisc/include/uapi/asm/ptrace.h            |  47 ++
 arch/parisc/include/{ => uapi}/asm/resource.h    |   0
 arch/parisc/include/{ => uapi}/asm/sembuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/setup.h       |   0
 arch/parisc/include/{ => uapi}/asm/shmbuf.h      |   0
 arch/parisc/include/{ => uapi}/asm/sigcontext.h  |   0
 arch/parisc/include/{ => uapi}/asm/siginfo.h     |   0
 arch/parisc/include/uapi/asm/signal.h            | 118 ++++
 arch/parisc/include/{ => uapi}/asm/socket.h      |   0
 arch/parisc/include/{ => uapi}/asm/sockios.h     |   0
 arch/parisc/include/{ => uapi}/asm/stat.h        |   0
 arch/parisc/include/{ => uapi}/asm/statfs.h      |   0
 arch/parisc/include/{ => uapi}/asm/swab.h        |   0
 arch/parisc/include/{ => uapi}/asm/termbits.h    |   0
 arch/parisc/include/uapi/asm/termios.h           |  43 ++
 arch/parisc/include/{ => uapi}/asm/types.h       |   0
 arch/parisc/include/uapi/asm/unistd.h            | 837 +++++++++++++++++++++++
 57 files changed, 1511 insertions(+), 1542 deletions(-)
 delete mode 100644 arch/parisc/include/asm/auxvec.h
 delete mode 100644 arch/parisc/include/asm/compat_signal.h
 delete mode 100644 arch/parisc/include/asm/cputime.h
 delete mode 100644 arch/parisc/include/asm/device.h
 delete mode 100644 arch/parisc/include/asm/div64.h
 delete mode 100644 arch/parisc/include/asm/emergency-restart.h
 delete mode 100644 arch/parisc/include/asm/hw_irq.h
 delete mode 100644 arch/parisc/include/asm/irq_regs.h
 delete mode 100644 arch/parisc/include/asm/kdebug.h
 delete mode 100644 arch/parisc/include/asm/kvm_para.h
 delete mode 100644 arch/parisc/include/asm/local.h
 delete mode 100644 arch/parisc/include/asm/local64.h
 delete mode 100644 arch/parisc/include/asm/mutex.h
 delete mode 100644 arch/parisc/include/asm/param.h
 delete mode 100644 arch/parisc/include/asm/percpu.h
 delete mode 100644 arch/parisc/include/asm/poll.h
 delete mode 100644 arch/parisc/include/asm/real.h
 delete mode 100644 arch/parisc/include/asm/segment.h
 delete mode 100644 arch/parisc/include/asm/topology.h
 delete mode 100644 arch/parisc/include/asm/user.h
 delete mode 100644 arch/parisc/include/asm/vga.h
 delete mode 100644 arch/parisc/include/asm/xor.h
 rename arch/parisc/include/{ => uapi}/asm/bitsperlong.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/byteorder.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/errno.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/fcntl.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/ioctl.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/ioctls.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/ipcbuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/mman.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/msgbuf.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/pdc.h
 rename arch/parisc/include/{ => uapi}/asm/posix_types.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/ptrace.h
 rename arch/parisc/include/{ => uapi}/asm/resource.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/sembuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/setup.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/shmbuf.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/sigcontext.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/siginfo.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/signal.h
 rename arch/parisc/include/{ => uapi}/asm/socket.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/sockios.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/stat.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/statfs.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/swab.h (100%)
 rename arch/parisc/include/{ => uapi}/asm/termbits.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/termios.h
 rename arch/parisc/include/{ => uapi}/asm/types.h (100%)
 create mode 100644 arch/parisc/include/uapi/asm/unistd.h

James


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On Fri, 2012-10-19 at 16:55 +0100, Al Viro wrote:
> [Sorry; forgot about that typo in Cc...  Repost to linux-arch alone]
> 
> On Tue, Oct 16, 2012 at 11:35:08PM +0100, Al Viro wrote:
> > 	1.  Basic rules for process lifetime.
> > Except for the initial process (init_task, eventual idle thread on the boot
> > CPU) all processes are created by do_fork().  There are three classes of
> > those: kernel threads, userland processes and idle threads to be.  There are
> > few low-level operations involved:
> > 	* a kernel thread can spawn a new kernel thread; the primitive
> > doing that is kernel_thread().
> > 	* a userland process can spawn a new userland process; that's
> > done by sys_fork()/sys_vfork()/sys_clone()/sys_clone2().
> > 	* a kernel thread can become a userland process.  The primitive
> > is kernel_execve().
> > 	* a kernel thread can spawn a future idle thread; that's done
> > by fork_idle().  Result is *not* scheduled until the secondary CPU gets
> > initialized and its state is heavily overwritten in process.
> 
> Minor correction: while the first two cases go through do_fork() to
> copy_process() to copy_thread(), fork_idle() calls copy_process() directly.
> 
> > 	4. What is done?
> > I've done the conversions for almost all architectures, but quite a few
> > are completely untested.
> > 
> > I'm fairly sure about alpha, x86 and um.  Tested and I understand the
> > architecture well enough.  arm, mips and c6x had been tested by architecture
> > maintainers.  This stuff also works.  alpha, arm, x86 and um are fully
> > converted in mainline by now.
> 
> arm64 fixed and tested by maintainer, put in no-rebase mode.
> 
> sparc corrected to avoid branching beyond what ba,pt allows, ACKed by Davem
> in that form.  In no-rebase mode.
> 
> m68k tested and ACKed on coldfire; I think that along with aranym testing
> here that is enough.  In no-rebase mode.
> 
> Surprisingly enough, ia64 one seems to work on actual hardware; I have sent
> Tony an incremental patch cleaning copy_thread() up, waiting for results of
> testing that on SMP box.
> 
> Even more surprisingly, unicore32 variant turned out to contain only one
> obvious typo.  Fixed and tested by maintainer of unicore32 tree and actually
> applied there, I've pulled his branch at that point.
> 
> microblaze: some fixes from Michal folded, still breakage with kernel_execve()
> side of things.
> 
> Since there had been no signs of life from hexagon folks, I'd done (absolutely
> blind and untested) tentative patches; see #arch-hexagon.  Same situation
> as with most of the embedded architectures - i.e. take with a cartload of salt,
> that pair of patches is intended to be a possible starting point for producing
> something working.
> 
> At that point we have the following situation:
> alpha                   done
> arm                     done
> arm64                   done
> avr32                   untested
> blackfin                untested
> c6x                     done
> cris                    untested
> frv                     untested, maintainer going to test
> h8300                   untested
> hexagon                 untested
> ia64                    apparently works, needs the final ACK from Tony.
> m32r                    untested
> m68k                    done
> microblaze              partially tested, maintainer hunting breakage down
> mips                    done
> mn10300                 untested
> openrisc                maintainers said to have partially working variant
> parisc                  should work, needs testing and ACK

Tested and works on top of 3.7-rc2 ... you can add my ACK.

James


> powerpc                 should work, needs testing and ACK
> s390                    should work, needs testing and ACK
> score                   untested
> sh                      untested, maintainers planned reviewing and
> testing
> sparc                   done
> tile                    maintainers writing that one
> um                      done
> unicore32               done
> x86                     done
> xtensa                  maintainers writing that one
> 
> One more thing: AFAICS, just about everything has something along the
> lines
> of
>         if (!usp)
>                 usp = <current userland sp>
>         do_fork(flags, usp, ....)
> in their sys_clone().  How about taking that into copy_thread()?
> After
> all, the logics there is
>         copy all the state, including userland stack pointer to child
>         override userland stack pointer with what the caller passed to
> copy_thread()
> often enough with "... and if we are about to override it with
> something
> different, do the following extra work".  Turning that into
>         copy all the state, including userland stack pointer to child
>         if (usp) {
>                 override the userland stack pointer for child and
> maybe do
>                 some extra work
>         }
> would seem to be a fairly natural thing.  Does anybody see problems
> with
> doing that on their architecture?  Note that with that fork() becomes
> simply
> #ifndef CONFIG_MMU
>         return -EINVAL;
> #else
>         return do_fork(SIGCHLD, 0, current_pt_regs(), 0, NULL, NULL);
> #endif
> and similar for vfork().  And these can definitely drop the
> Cthulhu-awful
> kludges for obtaining pt_regs (OK, on everything that doesn't do
> kernel_thread() via syscall-from-kernel, but by now only xtensa is
> still
> doing that).  In some cases we need to do a bit of work before that
> (gather callee-saved registers so that the child could get them as on
> alpha,
> mips, m68k, openrisc, parisc, ppc and x86, flush userland register
> windows
> on sparc and get psr/wim values on sparc32), but a lot more
> architectures
> lose the asm wrappers for those and the rest can get rid of assorted
> ugliness involved in getting that struct pt_regs *.
> 
> BTW, alpha seems to be doing an absolutely pointless work on the way
> out of
> sys_fork() et.al. - saving callee-saved registers is needed, all
> right,
> but why bother restoring all of them on the way out in the parent?
> All
> we need is rp; that's ~0.3Kb of useless reads from memory on each
> fork()...
> 
> The same goes for m68k; there the amount of traffic is less, but
> still, what
> the hell for?  Child needs callee-saved registers restored (and
> usually will
> have that done by switch_to()), but the parent needs only to make sure
> they
> are saved and available for copy_thread() to bring them to child
> (incidentally,
> copying registers is needed only when they are not embedded into
> task_struct.
> At least um is doing a memcpy() for no reason whatsoever; fix will be
> sent
> to rw shortly and ISTR seeing something similar on some of the other
> architectures).
> 
> Another cross-architecture thing: folks, watch out for what's being
> done with
> thread flags; I've just found a lovely bug on alpha where we have
> prctl(2)
> doing non-atomic modifications of those (as in ti->flags =
> (ti->flags&~x)|y;),
> which is obviously broken; TIF_SIGPENDING can be set asynchronously
> and even
> from an interrupt.  Fix for this one is going to Linus shortly (adding
> a separate field for thread-synchronous flags, taking obviously t-s
> ones
> there, including the UAC_... bunch set by that prctl()), but I don't
> think
> that I can audit that for all architectures efficiently; cursory look
> has
> found a braino on frv (fix being discussed with dhowells), but there
> may bloody
> well be more of that fun.
> --
> To unsubscribe from this list: send the line "unsubscribe linux-arch"
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> 


From - Thu Nov 08 21:08:41 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Machine stuck when userspace 100% busy
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My C3600 runs the CMake nightly builds. Basically this is a master 
process (ctest) that forks other binaries that do the actual tests. 
Afterwards it collects the output. If the child does not respond for 
some time (usually set to 30 minutes) it will get killed by ctest.

Yesterday someone accidentially introduced an endless loop into CMake, 
so some of the called tests will run at 100% CPU load forever. The 
master process was not affected by this, so these childs should have 
eventually got killed. But this did not happen. It did happen on all 
other machines building those tests 
(http://open.cdash.org/index.php?project=CMake&date=2012-10-21, e.g. 
http://open.cdash.org/viewTest.php?onlyfailed&buildid=2621607), but not 
on my machine. And from all what I can tell it does not look as if it is 
a ctest bug, but something in the scheduler or something like that not 
working properly.

$ ping voyager
PING voyager (192.168.2.119) 56(84) bytes of data.
64 bytes from voyager (192.168.2.119): icmp_seq=1 ttl=64 time=0.504 ms
64 bytes from voyager (192.168.2.119): icmp_seq=2 ttl=64 time=0.268 ms
64 bytes from voyager (192.168.2.119): icmp_seq=3 ttl=64 time=0.274 ms

So, the machine is alive and the ping time is ok. Doing ssh to it will 
get stuck for hours (literally). So, sadly, I have currently no way to 
get into userland of the machine. What I know is:

-ssh doesn't work
-kernel is alive
-the machine is very likely running at 100% CPU load from a normal user 
account (with not too excessive RAM usage AFAIK)

So for me it looks like this "userspace is at 100%" does something 
utterly bad to the scheduling, as it seems that no other processes will 
get their chance of running. If ctest would get it's chance it should 
have killed the slave after ~30 minutes, and ssh should definitely work. 
 From what I see on other machines the worst case scenario would be 18 of 
these amok processes, so after ~9 hours the dust should start to clear. 
That would have been nearly 20 hours ago, so something is not working 
there.

Any ideas?

Eike
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On Mon, Oct 22, 2012 at 3:41 AM, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
> My C3600 runs the CMake nightly builds. Basically this is a master process
> (ctest) that forks other binaries that do the actual tests. Afterwards it
> collects the output. If the child does not respond for some time (usually
> set to 30 minutes) it will get killed by ctest.
>
> Yesterday someone accidentially introduced an endless loop into CMake, so
> some of the called tests will run at 100% CPU load forever. The master
> process was not affected by this, so these childs should have eventually got
> killed. But this did not happen. It did happen on all other machines
> building those tests
> (http://open.cdash.org/index.php?project=CMake&date=2012-10-21, e.g.
> http://open.cdash.org/viewTest.php?onlyfailed&buildid=2621607), but not on
> my machine. And from all what I can tell it does not look as if it is a
> ctest bug, but something in the scheduler or something like that not working
> properly.
>
> $ ping voyager
> PING voyager (192.168.2.119) 56(84) bytes of data.
> 64 bytes from voyager (192.168.2.119): icmp_seq=1 ttl=64 time=0.504 ms
> 64 bytes from voyager (192.168.2.119): icmp_seq=2 ttl=64 time=0.268 ms
> 64 bytes from voyager (192.168.2.119): icmp_seq=3 ttl=64 time=0.274 ms
>
> So, the machine is alive and the ping time is ok. Doing ssh to it will get
> stuck for hours (literally). So, sadly, I have currently no way to get into
> userland of the machine. What I know is:
>
> -ssh doesn't work
> -kernel is alive
> -the machine is very likely running at 100% CPU load from a normal user
> account (with not too excessive RAM usage AFAIK)
>
> So for me it looks like this "userspace is at 100%" does something utterly
> bad to the scheduling, as it seems that no other processes will get their
> chance of running. If ctest would get it's chance it should have killed the
> slave after ~30 minutes, and ssh should definitely work. From what I see on
> other machines the worst case scenario would be 18 of these amok processes,
> so after ~9 hours the dust should start to clear. That would have been
> nearly 20 hours ago, so something is not working there.
>
> Any ideas?

Get on the serial console and see if you can login?

Then issue a magic-sysrq+t? What's userspace doing?

Cheers,
Carlos.
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From - Thu Nov 08 21:08:41 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: Machine stuck when userspace 100% busy
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Am , schrieb Carlos O'Donell:
> On Mon, Oct 22, 2012 at 3:41 AM, Rolf Eike Beer 
> <eike-kernel@sf-tec.de> wrote:
>> My C3600 runs the CMake nightly builds. Basically this is a master 
>> process
>> (ctest) that forks other binaries that do the actual tests. 
>> Afterwards it
>> collects the output. If the child does not respond for some time 
>> (usually
>> set to 30 minutes) it will get killed by ctest.
>>
>> Yesterday someone accidentially introduced an endless loop into 
>> CMake, so
>> some of the called tests will run at 100% CPU load forever. The 
>> master
>> process was not affected by this, so these childs should have 
>> eventually got
>> killed. But this did not happen. It did happen on all other machines
>> building those tests
>> (http://open.cdash.org/index.php?project=CMake&date=2012-10-21, e.g.
>> http://open.cdash.org/viewTest.php?onlyfailed&buildid=2621607), but 
>> not on
>> my machine. And from all what I can tell it does not look as if it 
>> is a
>> ctest bug, but something in the scheduler or something like that not 
>> working
>> properly.
>>
>> $ ping voyager
>> PING voyager (192.168.2.119) 56(84) bytes of data.
>> 64 bytes from voyager (192.168.2.119): icmp_seq=1 ttl=64 time=0.504 
>> ms
>> 64 bytes from voyager (192.168.2.119): icmp_seq=2 ttl=64 time=0.268 
>> ms
>> 64 bytes from voyager (192.168.2.119): icmp_seq=3 ttl=64 time=0.274 
>> ms
>>
>> So, the machine is alive and the ping time is ok. Doing ssh to it 
>> will get
>> stuck for hours (literally). So, sadly, I have currently no way to 
>> get into
>> userland of the machine. What I know is:
>>
>> -ssh doesn't work
>> -kernel is alive
>> -the machine is very likely running at 100% CPU load from a normal 
>> user
>> account (with not too excessive RAM usage AFAIK)
>>
>> So for me it looks like this "userspace is at 100%" does something 
>> utterly
>> bad to the scheduling, as it seems that no other processes will get 
>> their
>> chance of running. If ctest would get it's chance it should have 
>> killed the
>> slave after ~30 minutes, and ssh should definitely work. From what I 
>> see on
>> other machines the worst case scenario would be 18 of these amok 
>> processes,
>> so after ~9 hours the dust should start to clear. That would have 
>> been
>> nearly 20 hours ago, so something is not working there.
>>
>> Any ideas?
>
> Get on the serial console and see if you can login?

Was not possible, but because of something I broke on the other side of 
the serial line (i.e. no fault of the C3600).

> Then issue a magic-sysrq+t? What's userspace doing?

I went down to the machine and it was happily heartbeating as expected 
when the kernel still is able to send out ping replies. I pushed the 
power button and it shut down cleanly in something like half a minute. 
Poweron did work fine.

I see in the logs one OOM event during the CMake tests. Afterwards I 
see for another 10 minutes some nagios events, so it took a while after 
the OOM for the machine to freak out, and things like creating new 
processes was no problem until then.

I have no deeper insight in what happened later beyond what I already 
have written.

Eike
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From - Thu Nov 08 21:08:41 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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On Mon, Oct 22, 2012 at 10:07 AM, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
>> Get on the serial console and see if you can login?
>
>
> Was not possible, but because of something I broke on the other side of the
> serial line (i.e. no fault of the C3600).
>
>
>> Then issue a magic-sysrq+t? What's userspace doing?
>
>
> I went down to the machine and it was happily heartbeating as expected when
> the kernel still is able to send out ping replies. I pushed the power button
> and it shut down cleanly in something like half a minute. Poweron did work
> fine.
>
> I see in the logs one OOM event during the CMake tests. Afterwards I see for
> another 10 minutes some nagios events, so it took a while after the OOM for
> the machine to freak out, and things like creating new processes was no
> problem until then.
>
> I have no deeper insight in what happened later beyond what I already have
> written.

Without more information it's hard to determine what went wrong.

Cheers,
Carlos.
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From - Thu Nov 08 21:08:41 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Am , schrieb Carlos O'Donell:
> On Mon, Oct 22, 2012 at 10:07 AM, Rolf Eike Beer 
> <eike-kernel@sf-tec.de> wrote:
>>> Get on the serial console and see if you can login?
>>
>>
>> Was not possible, but because of something I broke on the other side 
>> of the
>> serial line (i.e. no fault of the C3600).
>>
>>
>>> Then issue a magic-sysrq+t? What's userspace doing?
>>
>>
>> I went down to the machine and it was happily heartbeating as 
>> expected when
>> the kernel still is able to send out ping replies. I pushed the 
>> power button
>> and it shut down cleanly in something like half a minute. Poweron 
>> did work
>> fine.
>>
>> I see in the logs one OOM event during the CMake tests. Afterwards I 
>> see for
>> another 10 minutes some nagios events, so it took a while after the 
>> OOM for
>> the machine to freak out, and things like creating new processes was 
>> no
>> problem until then.
>>
>> I have no deeper insight in what happened later beyond what I 
>> already have
>> written.
>
> Without more information it's hard to determine what went wrong.

Ok, this is the way I can reproduce it:

git clone git://cmake.org/cmake.git
cd cmake
git checkout cb4bff9882ecb7dbd674cc9d97ac5cd42248f0dc
mkdir build
cd build
cmake ..
make
ctest

The test RunCMake.ObjectLibrary (208 of 253 for me) will then hang the 
machine. It will not hang the machine when run on it's own.

Kernel: 3.6.2
glibc: GNU C Library stable release version 2.14.1, by Roland McGrath 
et al.
RAM: 512 MiB
Swap: 2GiB

Eike
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From - Thu Nov 08 21:08:41 2018
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From: Jean Delvare <khali@linux-fr.org>
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Subject: Re: [jdelvare-staging:i2c-for-linus 9/15] 
 drivers/leds/leds-tca6507.c:179:20: error: field 'gpio' has incomplete type
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	Parisc List <linux-parisc@vger.kernel.org>
To: Fengguang Wu <fengguang.wu@intel.com>
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Hi Fengguang,

On Tue, 16 Oct 2012 13:58:29 +0800, Fengguang Wu wrote:
> FYI, kernel build failed on
> 
> tree:   git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging.git i2c-for-linus
> head:   c415b303a704e5c5f766fc0404093910c36cc4ab
> commit: 3ad7ea18ae8c7ddda46b7276e0bda73e707ea9c1 [9/15] i2c-i801: Support SMBus multiplexing on Asus Z8 series
> config: parisc-allyesconfig # make ARCH=parisc allyesconfig

Can you please confirm that this problem is fixed in linux-next now? If
it is OK I'll send the fix to Linus quickly.

Thanks,
-- 
Jean Delvare
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From - Thu Nov 08 21:08:41 2018
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Subject: Re: [jdelvare-staging:i2c-for-linus 9/15]
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To: Jean Delvare <khali@linux-fr.org>
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Hi Jean,

On Wed, Oct 24, 2012 at 11:07:06AM +0200, Jean Delvare wrote:
> Hi Fengguang,
> 
> On Tue, 16 Oct 2012 13:58:29 +0800, Fengguang Wu wrote:
> > FYI, kernel build failed on
> > 
> > tree:   git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging.git i2c-for-linus
> > head:   c415b303a704e5c5f766fc0404093910c36cc4ab
> > commit: 3ad7ea18ae8c7ddda46b7276e0bda73e707ea9c1 [9/15] i2c-i801: Support SMBus multiplexing on Asus Z8 series
> > config: parisc-allyesconfig # make ARCH=parisc allyesconfig
> 
> Can you please confirm that this problem is fixed in linux-next now? If
> it is OK I'll send the fix to Linus quickly.

Sure. I just confirmed that linux-next 20121024 builds fine now!

Thanks,
Fengguang
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From - Thu Nov 08 21:08:42 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Machine stuck when userspace 100% busy
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 23-Oct-12, at 11:23 AM, Rolf Eike Beer wrote:

> Ok, this is the way I can reproduce it:
>
> git clone git://cmake.org/cmake.git
> cd cmake
> git checkout cb4bff9882ecb7dbd674cc9d97ac5cd42248f0dc
> mkdir build
> cd build
> cmake ..
> make
> ctest


I ran this test on my system with the following results:

94% tests passed, 15 tests failed out of 261

Label Time Summary:
Label1    =   0.26 sec
Label2    =   0.26 sec

Total Test time (real) = 11715.14 sec

The following tests FAILED:
          57 - ExportImport (Failed)
          65 - Qt4Deploy (OTHER_FAULT)
          69 - Module.GenerateExportHeader (OTHER_FAULT)
          91 - SimpleInstall-Stage2 (OTHER_FAULT)
         111 - complex (OTHER_FAULT)
         112 - complexOneConfig (OTHER_FAULT)
         115 - QtAutomoc (OTHER_FAULT)
         133 - Plugin (OTHER_FAULT)
         191 - BootstrapTest (Failed)
         196 - IncludeDirectories (OTHER_FAULT)
         202 - CMakeOnly.LinkInterfaceLoop (Timeout)
         210 - CMakeOnly.AllFindModules (Failed)
         211 - CMakeOnly.TargetScope (Failed)
         217 - RunCMake.ObjectLibrary (Failed)
         261 - CMake.CheckSourceTree (Failed)
Errors while running CTest

System didn't hang.

Machine: rp3440
Kernel: 3.6.2+ (JDA changes)
libc: debian 2.13-35

If you have fixes for any of the above fails let me know.

Dave
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From - Thu Nov 08 21:08:42 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Am , schrieb John David Anglin:
> On 23-Oct-12, at 11:23 AM, Rolf Eike Beer wrote:
>
>> Ok, this is the way I can reproduce it:
>>
>> git clone git://cmake.org/cmake.git
>> cd cmake
>> git checkout cb4bff9882ecb7dbd674cc9d97ac5cd42248f0dc
>> mkdir build
>> cd build
>> cmake ..
>> make
>> ctest
>
>
> I ran this test on my system with the following results:
>
> 94% tests passed, 15 tests failed out of 261
>
> Label Time Summary:
> Label1    =   0.26 sec
> Label2    =   0.26 sec
>
> Total Test time (real) = 11715.14 sec
>
> The following tests FAILED:
>          57 - ExportImport (Failed)
>          65 - Qt4Deploy (OTHER_FAULT)
>          69 - Module.GenerateExportHeader (OTHER_FAULT)
>          91 - SimpleInstall-Stage2 (OTHER_FAULT)
>         111 - complex (OTHER_FAULT)
>         112 - complexOneConfig (OTHER_FAULT)
>         115 - QtAutomoc (OTHER_FAULT)
>         133 - Plugin (OTHER_FAULT)
>         191 - BootstrapTest (Failed)
>         196 - IncludeDirectories (OTHER_FAULT)
>         202 - CMakeOnly.LinkInterfaceLoop (Timeout)
>         210 - CMakeOnly.AllFindModules (Failed)
>         211 - CMakeOnly.TargetScope (Failed)
>         217 - RunCMake.ObjectLibrary (Failed)
>         261 - CMake.CheckSourceTree (Failed)
> Errors while running CTest

This is more or less expected as the version under test contains a bug, 
so of course some of the tests will fail.

BootstrapTest, the Qt*, and CMakeOnly.AllFindModules are not in the 
list of things that I expected to fail. Please send me your 
Testing/Temporary/LastTest.log so I can look what the problem was with 
them. CMake.CheckSourceTree will fail if you used my commands, as you 
then have the untracked "build" directory in your source tree. So if you 
kill the build dir and put it somewhere outside the checkout and use 
"cmake /path/to/source" instead of "cmake .." this will succeed. The 
CMakeOnly.AllFindModules _could_ be a problem related to multiarch 
include directories, but that one is usually harmless.

> System didn't hang.
>
> Machine: rp3440
> Kernel: 3.6.2+ (JDA changes)
> libc: debian 2.13-35
>
> If you have fixes for any of the above fails let me know.

This is an SMP system, I bet that makes a difference for this sort of 
problem. Can you try booting with nosmp?

Btw: boot with nr_cpu=1 will make the kernel go mad, although I would 
have expected it to behave exactly like nosmp. At least when I last 
tested it.

Eike
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From - Thu Nov 08 21:08:42 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: [PATCH] HIL: remove one goto
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This goto is only used to skip the next instruction, which can easily be done
without a goto.

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 drivers/input/serio/hil_mlc.c |   11 +++++------
 1 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index bfd3865..0280167 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -686,13 +686,12 @@ static int hilse_donode(hil_mlc *mlc)
 		write_lock_irqsave(&mlc->lock, flags);
 		pack = node->object.packet;
 	out:
-		if (mlc->istarted)
-			goto out2;
-		/* Prepare to receive input */
-		if ((node + 1)->act & HILSE_IN)
-			hilse_setup_input(mlc, node + 1);
+		if (!mlc->istarted) {
+			/* Prepare to receive input */
+			if ((node + 1)->act & HILSE_IN)
+				hilse_setup_input(mlc, node + 1);
+		}
 
-	out2:
 		write_unlock_irqrestore(&mlc->lock, flags);
 
 		if (down_trylock(&mlc->osem)) {
-- 
1.7.7


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[cc to parisc list]

On Thu, 2012-11-01 at 16:45 -0700, Michel Lespinasse wrote:
> Hi,
> 
> I am currently working on a patchset to avoid the brute-force search
> in arch_get_unmapped_area functions (and also pushes some of it back
> into generic code). So far I've only sent it as an RFC on linux-mm.

Actually, I read linux-mm pretty closely (at least for the cgroups
stuff), but I must have missed it.  In general, if you need the
attention of arch maintainers, linux-arch is the right list to cc.

> Looking at the arch/parisc/kernel/sys_parisc.c implementation of
> get_shared_area(), I do have a concern though. The function basically
> ignores the pgoff argument, so that if one creates a shared mapping of
> pages 0-N of a file, and then a separate shared mapping of pages 1-N
> of that same file, both will have the same cache offset for their
> starting address.
> 
> This looks like this would create obvious aliasing issues. Am I
> misreading this ? I can't understand how this could work good enough
> to be undetected, so there must be something I'm missing here ???

No, I think it does.

I also think the pgoff != 0 case is rare, so it doesn't show very often.
To test this, I booted up with a printk for every pgoff != 0 and it
didn't trigger, so it's probably not seen in the ordinary course of
events.

Finally, we have a test for inequvalent aliases in flush_dcache_page, so
even if we do get the inequivalency, we'll resolve it correctly.

James


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Subject: Re: possible virtual aliasing issues on parisc ?
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On Fri, 2012-11-02 at 09:34 +0000, James Bottomley wrote:
> > Looking at the arch/parisc/kernel/sys_parisc.c implementation of
> > get_shared_area(), I do have a concern though. The function basically
> > ignores the pgoff argument, so that if one creates a shared mapping of
> > pages 0-N of a file, and then a separate shared mapping of pages 1-N
> > of that same file, both will have the same cache offset for their
> > starting address.
> > 
> > This looks like this would create obvious aliasing issues. Am I
> > misreading this ? I can't understand how this could work good enough
> > to be undetected, so there must be something I'm missing here ???
> 
> No, I think it does.
> 
> I also think the pgoff != 0 case is rare, so it doesn't show very often.
> To test this, I booted up with a printk for every pgoff != 0 and it
> didn't trigger, so it's probably not seen in the ordinary course of
> events.

I got it to show: Git uses mmap2 with large page offsets.  However, it
seems to use offsets with a granularity of 16MB which is 4x our aliasing
congruency, so an equivalency problem still wouldn't show up.

James


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On Fri, Nov 2, 2012 at 4:08 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Fri, 2012-11-02 at 09:34 +0000, James Bottomley wrote:
>> > Looking at the arch/parisc/kernel/sys_parisc.c implementation of
>> > get_shared_area(), I do have a concern though. The function basically
>> > ignores the pgoff argument, so that if one creates a shared mapping of
>> > pages 0-N of a file, and then a separate shared mapping of pages 1-N
>> > of that same file, both will have the same cache offset for their
>> > starting address.
>> >
>> > This looks like this would create obvious aliasing issues. Am I
>> > misreading this ? I can't understand how this could work good enough
>> > to be undetected, so there must be something I'm missing here ???
>>
>> No, I think it does.
>>
>> I also think the pgoff != 0 case is rare, so it doesn't show very often.
>> To test this, I booted up with a printk for every pgoff != 0 and it
>> didn't trigger, so it's probably not seen in the ordinary course of
>> events.
>
> I got it to show: Git uses mmap2 with large page offsets.  However, it
> seems to use offsets with a granularity of 16MB which is 4x our aliasing
> congruency, so an equivalency problem still wouldn't show up.

All right. Thanks for looking it up - I just wasn't sure if my reading
of the code was correct (and, I am surprised this isn't more common :)

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.
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On Fri, Nov 2, 2012 at 2:34 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> [cc to parisc list]
>
> On Thu, 2012-11-01 at 16:45 -0700, Michel Lespinasse wrote:
>> Hi,
>>
>> I am currently working on a patchset to avoid the brute-force search
>> in arch_get_unmapped_area functions (and also pushes some of it back
>> into generic code). So far I've only sent it as an RFC on linux-mm.
>
> Actually, I read linux-mm pretty closely (at least for the cgroups
> stuff), but I must have missed it.

Oh, I've actually only sent out the generic and x86_64 parts so far,
as I was looking for comments on the general design first. I'm going
through the architectures but haven't tried sending that out yet :)

>  In general, if you need the
> attention of arch maintainers, linux-arch is the right list to cc.

Oh nice, I didn't know about that particular list.

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.
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On Fri, 2012-11-02 at 04:20 -0700, Michel Lespinasse wrote:
> On Fri, Nov 2, 2012 at 4:08 AM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> > On Fri, 2012-11-02 at 09:34 +0000, James Bottomley wrote:
> >> > Looking at the arch/parisc/kernel/sys_parisc.c implementation of
> >> > get_shared_area(), I do have a concern though. The function basically
> >> > ignores the pgoff argument, so that if one creates a shared mapping of
> >> > pages 0-N of a file, and then a separate shared mapping of pages 1-N
> >> > of that same file, both will have the same cache offset for their
> >> > starting address.
> >> >
> >> > This looks like this would create obvious aliasing issues. Am I
> >> > misreading this ? I can't understand how this could work good enough
> >> > to be undetected, so there must be something I'm missing here ???
> >>
> >> No, I think it does.
> >>
> >> I also think the pgoff != 0 case is rare, so it doesn't show very often.
> >> To test this, I booted up with a printk for every pgoff != 0 and it
> >> didn't trigger, so it's probably not seen in the ordinary course of
> >> events.
> >
> > I got it to show: Git uses mmap2 with large page offsets.  However, it
> > seems to use offsets with a granularity of 16MB which is 4x our aliasing
> > congruency, so an equivalency problem still wouldn't show up.
> 
> All right. Thanks for looking it up - I just wasn't sure if my reading
> of the code was correct (and, I am surprised this isn't more common :)

Well, I can fix it like this, but until something actually causes an
inequivalency, I'll keep it as a low priority bug fix.

James

---

diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 7426e40..f76c108 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -73,6 +73,8 @@ static unsigned long get_shared_area(struct address_space *mapping,
 	struct vm_area_struct *vma;
 	int offset = mapping ? get_offset(mapping) : 0;
 
+	offset = (offset + (pgoff << PAGE_SHIFT)) & 0x3FF000;
+
 	addr = DCACHE_ALIGN(addr - offset) + offset;
 
 	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {



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From - Thu Nov 08 21:08:42 2018
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From: Julia Lawall <Julia.Lawall@lip6.fr>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.janitors,gmane.linux.kernel
Subject: [PATCH 15/16] drivers/parisc/pdc_stable.c: use WARN
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From: Julia Lawall <Julia.Lawall@lip6.fr>

Use WARN rather than printk followed by WARN_ON(1), for conciseness.

A simplified version of the semantic patch that makes this transformation
is as follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression list es;
@@

-printk(
+WARN(1,
  es);
-WARN_ON(1);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
 drivers/parisc/pdc_stable.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 246a92f..0f54ab6 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -212,12 +212,10 @@ pdcspath_store(struct pdcspath_entry *entry)
 			entry, devpath, entry->addr);
 
 	/* addr, devpath and count must be word aligned */
-	if (pdc_stable_write(entry->addr, devpath, sizeof(*devpath)) != PDC_OK) {
-		printk(KERN_ERR "%s: an error occurred when writing to PDC.\n"
+	if (pdc_stable_write(entry->addr, devpath, sizeof(*devpath)) != PDC_OK)
+		WARN(1, KERN_ERR "%s: an error occurred when writing to PDC.\n"
 				"It is likely that the Stable Storage data has been corrupted.\n"
 				"Please check it carefully upon next reboot.\n", __func__);
-		WARN_ON(1);
-	}
 		
 	/* kobject is already registered */
 	entry->ready = 2;

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Subject: merging printk and WARN
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It looks like these patches were not a good idea, because in each case the 
printk provides an error level, and WARN then provides another one.

Sorry for the noise.

julia
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Cc: Michel Lespinasse <walken@google.com>,
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On 2-Nov-12, at 8:30 AM, James Bottomley wrote:

> On Fri, 2012-11-02 at 04:20 -0700, Michel Lespinasse wrote:
>> On Fri, Nov 2, 2012 at 4:08 AM, James Bottomley
>> <James.Bottomley@hansenpartnership.com> wrote:
>>> On Fri, 2012-11-02 at 09:34 +0000, James Bottomley wrote:
>>>>> Looking at the arch/parisc/kernel/sys_parisc.c implementation of
>>>>> get_shared_area(), I do have a concern though. The function  
>>>>> basically
>>>>> ignores the pgoff argument, so that if one creates a shared  
>>>>> mapping of
>>>>> pages 0-N of a file, and then a separate shared mapping of pages  
>>>>> 1-N
>>>>> of that same file, both will have the same cache offset for their
>>>>> starting address.
>>>>>
>>>>> This looks like this would create obvious aliasing issues. Am I
>>>>> misreading this ? I can't understand how this could work good  
>>>>> enough
>>>>> to be undetected, so there must be something I'm missing here ???
>>>>
>>>> No, I think it does.
>>>>
>>>> I also think the pgoff != 0 case is rare, so it doesn't show very  
>>>> often.
>>>> To test this, I booted up with a printk for every pgoff != 0 and it
>>>> didn't trigger, so it's probably not seen in the ordinary course of
>>>> events.
>>>
>>> I got it to show: Git uses mmap2 with large page offsets.   
>>> However, it
>>> seems to use offsets with a granularity of 16MB which is 4x our  
>>> aliasing
>>> congruency, so an equivalency problem still wouldn't show up.
>>
>> All right. Thanks for looking it up - I just wasn't sure if my  
>> reading
>> of the code was correct (and, I am surprised this isn't more  
>> common :)
>
> Well, I can fix it like this, but until something actually causes an
> inequivalency, I'll keep it as a low priority bug fix.
>
> James
>
> ---
>
> diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/ 
> sys_parisc.c
> index 7426e40..f76c108 100644
> --- a/arch/parisc/kernel/sys_parisc.c
> +++ b/arch/parisc/kernel/sys_parisc.c
> @@ -73,6 +73,8 @@ static unsigned long get_shared_area(struct  
> address_space *mapping,
> 	struct vm_area_struct *vma;
> 	int offset = mapping ? get_offset(mapping) : 0;
>
> +	offset = (offset + (pgoff << PAGE_SHIFT)) & 0x3FF000;
> +
> 	addr = DCACHE_ALIGN(addr - offset) + offset;
>
> 	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {


I have the sense that this may fix
http://thread.gmane.org/gmane.linux.ports.parisc/4027/focus=4278
as I haven't seen the problem since I added the above change to my
patch list.

The check for inequivalent aliases in flush_dcache_page isn't  
perfect.  I've only seen
it trigger when a core dump is generated.

Dave
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On Sun, Nov 4, 2012 at 4:29 PM, John David Anglin <dave.anglin@bell.net> wrote:
> I have the sense that this may fix
> http://thread.gmane.org/gmane.linux.ports.parisc/4027/focus=4278
> as I haven't seen the problem since I added the above change to my
> patch list.

I don't have parisc machines myself to test on; however if you could
confirm that this workload does cause arch_get_unmapped_area() to be
called with (flags & MAP_SHARED) set and (pgoff % 1024) != 0, I think
this would be a good enough smoking gun to blame the bug on this.

Regarding fixes: I'm going to try and send my vma gap finder patchset
this week for possible integration into andrew's -mm tree. There will
be one parisc patch in that set which will include the fix for this
coloring issue. Of course, feel free to apply James's minimal fix
before then; I am just sending this heads up as we're likely to end up
with a conflict between both fixes in -next if we go that way :)

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.
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On Sun, Nov 04, 2012 at 09:25:53PM +0100, Julia Lawall wrote:
> It looks like these patches were not a good idea, because in each case the
> printk provides an error level, and WARN then provides another one.

I think this is not a problem within btrfs at the place where this has
changed.

david
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On Wed, Oct 31, 2012 at 08:24:34PM +0100, Rolf Eike Beer wrote:
> This goto is only used to skip the next instruction, which can easily be done
> without a goto.
> 
> Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>

Applied, thank you Rolf.

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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
	Helge Deller <deller@gmx.de>,
	Parisc List <linux-parisc@vger.kernel.org>
To: Michel Lespinasse <walken@google.com>
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On 4-Nov-12, at 8:54 PM, Michel Lespinasse wrote:

> On Sun, Nov 4, 2012 at 4:29 PM, John David Anglin <dave.anglin@bell.net 
> > wrote:
>> I have the sense that this may fix
>> http://thread.gmane.org/gmane.linux.ports.parisc/4027/focus=4278
>> as I haven't seen the problem since I added the above change to my
>> patch list.
>
> I don't have parisc machines myself to test on; however if you could
> confirm that this workload does cause arch_get_unmapped_area() to be
> called with (flags & MAP_SHARED) set and (pgoff % 1024) != 0, I think
> this would be a good enough smoking gun to blame the bug on this.

I tried the above but it doesn't trigger.  However, I can still  
generate the
problem.  Going back GCC revison 181500, I had a couple of hangs in
cc1plus.  Attached is the sysrq state for the process.  The system  
crashed
almost immediately after I issued did the sysrq.

Dave
--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-2-683259835
Content-Disposition: attachment; filename="sysrq.txt"
Content-Type: text/plain; x-unix-mode=0644; name="sysrq.txt"
Content-Transfer-Encoding: 7bit

With GCC revision 181500:

cc1plus         R  running task        0  4623   4621 0x00000010
Backtrace:
 [<00000000401191f8>] __schedule+0x298/0x608
 [<0000000040119698>] schedule+0x38/0x90
 [<0000000040105074>] intr_return+0x0/0x4
timer_interrupt(CPU 2): delayed! cycles 9456AFC7 rem DEA47  next/now 16C3418E5311/16C3418068CA

mx3210 login: timer_interrupt(CPU 0): delayed! cycles DFC6D584E rem 13F38E  next/now 16FCCB60DE51/16FCCB4CEAC3
BUG: soft lockup - CPU#3 stuck for 4282963078s! [cc1plus:4623]
BUG: soft lockup - CPU#1 stuck for 4282963078s! [swapper/1:0]
BUG: soft lockup - CPU#2 stuck for 4282963078s! [swapper/2:0]
Modules linked in:
Modules linked in:
Modules linked in:
 nfsv3
 nfsv3
 nfsv3
 nfsd
 nfsd
 exportfs
 exportfs
 nfs_acl
 nfs_acl
 nfsd
 nfs
 exportfs
 lockd
 nfs_acl
 nfs
 sunrpc
 lockd
 ipv6
 sunrpc
 ext2
 nfs
 ext3
 lockd
 mbcache
 sunrpc
 jbd
 ipv6
 ipv6
 ext2
 ext2
 zalon7xx
 ext3
 ext3
 lasi700
 mbcache
 53c700
 mbcache
 hilkbd
 jbd
 sd_mod
 jbd
 zalon7xx
 zalon7xx
 crc_t10dif
 lasi700
 lasi700
 53c700
 53c700
 hilkbd
 sg
 hilkbd
 sr_mod
 sd_mod
 sd_mod
 crc_t10dif
 crc_t10dif
 cdrom
 sg
 sg
 sr_mod
 sr_mod
 sym53c8xx
 cdrom
 cdrom
 sym53c8xx
 sym53c8xx
 pata_cmd64x
 pata_cmd64x
 pata_cmd64x
 scsi_transport_spi
 scsi_transport_spi
 scsi_transport_spi
 libata
 libata
 libata
 tg3
 tg3
 scsi_mod

 scsi_mod

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI

PSW: 00001000000001001111111100001111 Not tainted
 tg3 scsi_mod
r00-03  000000ff0804ff0f 000000004065cd20 00000000401277a8 000000007f4d81e0

r04-07  000000004064c520 0000000000000002 00000000fffffff0 0000000000000002
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
r08-11  000000f0f0d08440 0200000000000000 000000000804000e 0000000040673554
PSW: 00001000000001001111111100001111 Not tainted
r12-15  ffffffffffffffff 7fffffffffffffff ffffffffffffffff ffffffffffffffff
r16-19  fffffff0f0d00b0c ffffffffffff7fbf ffffffffffffffff 000000000800000e
r00-03  000000ff0804ff0f 000000004065cd20 00000000401277a8 000000007f4d41e0
r20-23  0000000002185000 0000000000000001 000000007cf81380 000000000800000e
r04-07  000000004064c520 0000000000000001 00000000fffffff0 0000000000000001
r24-27  000000000800000e 000000007f5f8810 0000000042824ba0 000000004064c520
r08-11  000000f0f0d08440 0100000000000000 000000000804000e 0000000040673554
r28-31  0000000000000008 000000007f4d81e0 000000007f4d8210 0000000000000001
r12-15  ffffffffffffff7f bffffffff6ff5ffe ffffffffffffffff ffffffffffffffff
sr00-03  000000000069a000 000000000069a000 0000000000000000 000000000069a000
r16-19  fffffff0f0d00b0c fdffdffff6be5ffe fffffffffffffffe 000000000800000e
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
r20-23  000000000217b000 000000007f5a23c0 000000007cc7b080 000000000800000e

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401277bc 00000000401277c0
r24-27  000000000800000e 000000007ee0b0b8 000000004281aba0 000000004064c520
r28-31  000000007f4d4000 000000007f4d41e0 000000007f4d4210 0000000000000001
sr00-03  0000000000831000 0000000000000000 0000000000000000 0000000000831000
 IIR: 03c008bc    ISR: 00000000406a0bc0  IOR: 0000000000000002
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr00-03  0000000007e77000 0000000007e77000 0000000000000000 0000000007e77000

sr04-07  0000000007e77000 0000000007e77000 0000000007e77000 0000000007e77000
IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401277c0 00000000401277c4
 CPU:        2   CR30: 000000007f4d8000 CR31: ffffffffffffffff

 ORIG_R28: 000000007f4d83f0
 IIR: 539c0020    ISR: 00000000406a0bc0  IOR: 0000000000000001
 IAOQ[0]: cpu_idle+0x7c/0xb0
      VZOUICununcqcqcqcqcqcrmunTDVZOUI
 IAOQ[1]: cpu_idle+0x80/0xb0
 CPU:        1   CR30: 000000007f4d4000 CR31: ffffffffffffffff
 RP(r2): cpu_idle+0x68/0xb0
FPSR: 00001000000000000000000000000000
 ORIG_R28: 000000007f4d43f0
FPER1: 00000000
 IAOQ[0]: cpu_idle+0x80/0xb0
Backtrace:
fr00-03  0800000000000000 0000000000000000 0000000000000000 0000000000000000
 [<00000000406736f4>] smp_callin+0x1a4/0x1c0
 IAOQ[1]: cpu_idle+0x84/0xb0

fr04-07  000000004064c520 0000000000000000 0000000040540000 4090000000000000
 RP(r2): cpu_idle+0x68/0xb0
fr08-11  0000000040145b10 0000000000000001 00000000405e39b8 000000004065ad20
Backtrace:
fr12-15  0000000000000001 0000000000000006 00000000405e4690 0000000042811bc0
timer_interrupt(CPU 2): delayed! cycles DFC46740F rem A03B2  next/now 16FCCB5EEBFF/16FCCB54E84D
fr16-19  000000007f47b038 0000000000000000 0000000000000000 000000000800000f
 [<00000000406736f4>] smp_callin+0x1a4/0x1c0
fr20-23  0000000000000000 00000000405e39ba 0000000000000054 49ef4e8000400000

fr24-27  4a80000000000000 0000000000000006 000000004054e174 0000000000000001
fr28-31  00000000405e39b8 000000004064c520 0000000000000028 0000000000000000

IASQ: 0000000007e77000 0000000007e77000 IAOQ: 0000000004017df3 0000000004017df7
 IIR: 0e7c2093    ISR: 0000000007e77000  IOR: 0000000040483000
 CPU:        3   CR30: 0000000044458000 CR31: ffffffffffffffff
 ORIG_R28: 0000000000000000
 IAOQ[0]: 0000000004017df3
 IAOQ[1]: 0000000004017df7
timer_interrupt(CPU 1): delayed! cycles DFC5623DE rem 2B27FE  next/now 16FCCB80B46A/16FCCB558C6C
 RP(r2): 0000000004017f97
timer_interrupt(CPU 3): delayed! cycles DF942EF19 rem 46F8  next/now 16FCCB561D0C/16FCCB55D614
Backtrace:
 [<0000000040128f14>] ipi_interrupt+0x184/0x200
 [<000000004019f734>] handle_irq_event_percpu+0xb4/0x308
 [<00000000401a3f48>] handle_percpu_irq+0xa0/0xd8
 [<000000004019ebb8>] generic_handle_irq+0x40/0x50
 [<00000000401205a4>] do_cpu_irq_mask+0x1ac/0x298
 [<0000000040105074>] intr_return+0x0/0x4


Kernel Fault: Code=26 regs=000000007d079130 (Addr=400000000000002f)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001110 Not tainted
r00-03  000000000804000e 000000000804000e 0000000040128f14 7fffffffffffffff
r04-07  000000004064c520 0000000000000001 0000000000000000 000000007d079100
r08-11  0000000000000004 000000004066ad20 0000000000200200 00000000405141d0
r12-15  fffffffffffffffb 000000004065c520 00000000405141c0 0000000000000002
r16-19  0000000000000006 000000004062e820 0000000040597f00 0000000000000002
r20-23  000000000800000e 0000000000000009 000000000800000e 0000000000000000
r24-27  0000000000000001 0000000000000000 0000000000000000 000000004064c520
r28-31  7fffffffffffffff 0000000000000000 000000007d079130 0000000000000002
sr00-03  0000000000705800 0000000000000000 0000000000000000 0000000000705800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040193b48 0000000040193b4c
 IIR: 0c7020dc    ISR: 0000000000000000  IOR: 400000000000002f
 CPU:        2   CR30: 000000007d078000 CR31: ffffffffffffffff
 ORIG_R28: 0000000000000000
 IAOQ[0]: generic_smp_call_function_interrupt+0xf0/0x2e0
 IAOQ[1]: generic_smp_call_function_interrupt+0xf4/0x2e0
 RP(r2): ipi_interrupt+0x184/0x200
Backtrace:
 [<0000000040128f14>] ipi_interrupt+0x184/0x200
 [<000000004019f734>] handle_irq_event_percpu+0xb4/0x308
 [<00000000401a3f48>] handle_percpu_irq+0xa0/0xd8
 [<000000004019ebb8>] generic_handle_irq+0x40/0x50
 [<00000000401205a4>] do_cpu_irq_mask+0x1ac/0x298
 [<0000000040105074>] intr_return+0x0/0x4

Kernel panic - not syncing: Kernel Fault
break 0,0: pid=2893 command='nscd'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001110 Not tainted
r00-03  000000000804000e 0000000040000000 400000000000002f 0000000040540000
r04-07  000000004064c520 000000000800000e 0000000000000000 000000000000001a
r08-11  400000000000002f 000000004066ad20 0000000000200200 00000000405141d0
r12-15  fffffffffffffffb 000000004065c520 00000000405141c0 0000000000000002
r16-19  000000007d079130 000000004062e820 0000000040597f00 00000000000001ff
r20-23  000000000000ea60 0000000000000500 0000000000000001 00000000044598f8
r24-27  0000000000000000 00000000000003e8 000000007d079618 000000004064c520
r28-31  ffffffffffffffff 00000000005c1888 000000007d0797a0 0000000000401822
sr00-03  0000000000705800 0000000000000000 0000000000000000 0000000000705800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004012828c 4000000000000033
 IIR: fffffff0f0ffffa4    ISR: 0000000000000041  IOR: 0000000000000000
 CPU:        2   CR30: 000000007d078000 CR31: ffffffffffffffff
 ORIG_R28: ffffffffffffffff
 IAOQ[0]: pdc_chassis_send_status+0x8c/0xf0
 IAOQ[1]: 0x4000000000000033
 RP(r2): 0x400000000000002f
Backtrace:
 [<00000000402b8078>] vsnprintf+0x198/0x4d0

      _______________________________ 
     < Your System ate a SPARC! Gah! >
      ------------------------------- 
             \   ^__^
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
nscd (pid 2893): Illegal instruction (code 8)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001110 Not tainted
r00-03  000000000804000e 0000000040000000 00000000402b8078 0000000040540000
r04-07  000000004064c520 000000000800000e 0000000000000000 000000000000001a
r08-11  400000000000002f 000000004066ad20 0000000000200200 00000000405141d0
r12-15  fffffffffffffffb 000000004065c520 00000000405141c0 0000000000000002
r16-19  000000007d079130 000000004062e820 0000000040597f00 00000000000001ff
r20-23  000000000000ea60 0000000000000500 0000000000000001 00000000044598f8
r24-27  0000000000000000 00000000000003e8 000000007d079618 000000004064c520
r28-31  ffffffffffffffff 00000000005c1888 000000007d079720 0000000000401822
sr00-03  0000000000705800 0000000000000000 0000000000000000 0000000000705800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402b8078 00000000402b807c
 IIR: 00000204    ISR: 0000000000705800  IOR: 0000000000000000
 CPU:        2   CR30: 000000007d078000 CR31: ffffffffffffffff
 ORIG_R28: a0e008c01100b009
 IAOQ[0]: vsnprintf+0x198/0x4d0
 IAOQ[1]: vsnprintf+0x19c/0x4d0
 RP(r2): vsnprintf+0x198/0x4d0
Backtrace:

Backtrace:
 [<000000004011e458>] dump_stack+0x18/0x28
 [<000000004011eacc>] die_if_kernel+0xfc/0x268
 [<000000004011f4e4>] handle_interruption+0x4b4/0x860
 [<00000000402b8078>] vsnprintf+0x198/0x4d0

      _______________________________ 
     < Your System ate a SPARC! Gah! >
      ------------------------------- 
             \   ^__^
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
nscd (pid 2893): Illegal instruction (code 8)
die_if_kernel() recursion detected.
timer_interrupt(CPU 0): delayed! cycles 16FCAF57713B rem B4695  next/now 16FCF1E47C50/16FCF1D935BB
BUG: soft lockup - CPU#0 stuck for 29423s! [swapper/0:0]
Modules linked in: nfsv3 nfsd exportfs nfs_acl nfs lockd sunrpc ipv6 ext2 ext3 mbcache jbd zalon7xx lasi700 53c700 hilkbd sd_mod crc_t10dif sg sr_mod cdrom sym53c8xx pata_cmd64x scsi_transport_spi libata tg3 scsi_mod

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Tainted: G      D     
r00-03  000000ff0804ff0f 0000000040669d20 0000000040105074 000000000800000e
r04-07  000000004064c520 0000000000000002 0000000000000fff 0000000040510930
r08-11  0000000040514080 000000000000000a 00000000405e46c0 0000000040669d20
r12-15  000000004066a520 0000000000000000 0000000000200000 000000004065b520
r16-19  0000000040510ca0 00000000ffffffff 00000000ffffffff 00000000405334f0
r20-23  0000000042810020 ffffffffffffffff ffe0000000000000 8000000000000000
r24-27  0000000000000001 0000000040518200 0000000042810ba0 000000004064c520
r28-31  0000000042811510 0000000040511180 0000000040510fe0 0000000002171000
sr00-03  0000000000683800 0000000000000000 0000000000000000 0000000000683800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040105078 000000004010507c
 IIR: 03c008a1    ISR: 000000004064c520  IOR: 000000004064c520
 CPU:        0   CR30: 0000000040510000 CR31: e001013408940000
 ORIG_R28: 000000004064c520
 IAOQ[0]: intr_check_resched+0x0/0xc
 IAOQ[1]: intr_check_resched+0x4/0xc
 RP(r2): intr_return+0x0/0x4
Backtrace:
 [<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
 [<0000000040105074>] intr_return+0x0/0x4
 [<000000004018767c>] update_wall_time+0x79c/0x880
 [<000000004011ac54>] do_softirq+0x64/0x68
 [<00000000401277bc>] cpu_idle+0x7c/0xb0

timer_interrupt(CPU 0): delayed! cycles 16FCBF1A8A01 rem 1CF290  next/now 16FCFF88BE51/16FCFF6BCBC1
Backtrace:
 [<0000000040128f14>] ipi_interrupt+0x184/0x200
 [<000000004019f734>] handle_irq_event_percpu+0xb4/0x308
 [<00000000401a3f48>] handle_percpu_irq+0xa0/0xd8
 [<000000004019ebb8>] generic_handle_irq+0x40/0x50
 [<00000000401205a4>] do_cpu_irq_mask+0x1ac/0x298
 [<0000000040105074>] intr_return+0x0/0x4
 [<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
 [<0000000040105074>] intr_return+0x0/0x4
 [<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
 [<0000000040105074>] intr_return+0x0/0x4
 [<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
 [<0000000040105074>] intr_return+0x0/0x4
 [<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
 [<0000000040105074>] intr_return+0x0/0x4
 [<000000004018767c>] update_wall_time+0x79c/0x880
 [<000000004011ac54>] do_softirq+0x64/0x68


Kernel Fault: Code=26 regs=0000000040511e40 (Addr=800000000000002f)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001110 Tainted: G      D     
r00-03  000000000804000e 000000000804000e 0000000040128f14 bfffffffffffffff
r04-07  000000004064c520 0000000000000001 0000000000000000 0000000040511e10
r08-11  0000000000000001 000000004066ad20 0000000000200200 00000000405141d0
r12-15  fffffffffffffffe 000000004065c520 00000000405141c0 0000000000000000
r16-19  0000000000000006 000000004062e820 0000000040597f00 0000000000000000
r20-23  000000000800000e 0000000000000000 000000000800000e 0000000000000000
r24-27  0000000000000001 0000000000000000 000000004281c480 000000004064c520
r28-31  bfffffffffffffff 0000000040511e10 0000000040511e40 0000000042810020
sr00-03  0000000000683800 0000000000000000 0000000000000000 0000000000683800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040193b48 0000000040193b4c
 IIR: 0c7020dc    ISR: 0000000000000000  IOR: 800000000000002f
 CPU:        0   CR30: 0000000040510000 CR31: e001013408940000
 ORIG_R28: 0000000000000000
 IAOQ[0]: generic_smp_call_function_interrupt+0xf0/0x2e0
 IAOQ[1]: generic_smp_call_function_interrupt+0xf4/0x2e0
 RP(r2): ipi_interrupt+0x184/0x200
Backtrace:
 [<0000000040128f14>] ipi_interrupt+0x184/0x200
 [<000000004019f734>] handle_irq_event_percpu+0xb4/0x308
 [<00000000401a3f48>] handle_percpu_irq+0xa0/0xd8
 [<000000004019ebb8>] generic_handle_irq+0x40/0x50
 [<00000000401205a4>] do_cpu_irq_mask+0x1ac/0x298
 [<0000000040105074>] intr_return+0x0/0x4
 [<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
 [<0000000040105074>] intr_return+0x0/0x4
 [<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
 [<0000000040105074>] intr_return+0x0/0x4
 [<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
 [<0000000040105074>] intr_return+0x0/0x4
 [<000000004019f7a0>] handle_irq_event_percpu+0x120/0x308
 [<0000000040105074>] intr_return+0x0/0x4
 [<000000004018767c>] update_wall_time+0x79c/0x880
 [<000000004011ac54>] do_softirq+0x64/0x68


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From - Thu Nov 08 21:08:43 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: James Hogan <james.hogan@imgtec.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.hexagon,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH 1/1] arch Kconfig: remove references to IRQ_PER_CPU
Date: Tue, 13 Nov 2012 11:59:08 +0000
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Approved: news@gmane.org
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	Paul Mundt <lethal@linux-sh.org>
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The IRQ_PER_CPU Kconfig symbol was removed in the following commit:

Commit 6a58fb3bad099076f36f0f30f44507bc3275cdb6 ("genirq: Remove
CONFIG_IRQ_PER_CPU") merged in v2.6.39-rc1.

But IRQ_PER_CPU wasn't removed from any of the architecture Kconfig
files where it was defined or selected. It's completely unused so remove
the remaining references.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
---
Based on v3.7-rc5.

Compile tested defconfigs for bfin, ia64, mips, parisc, powerpc, sh, but
not hexagon.

Grepped entire tree to check no references to CONFIG_IRQ_PER_CPU, and
grepped arch/ for Kconfig files referencing IRQ_PER_CPU.

 arch/blackfin/Kconfig |    1 -
 arch/hexagon/Kconfig  |    1 -
 arch/ia64/Kconfig     |    1 -
 arch/mips/Kconfig     |    1 -
 arch/parisc/Kconfig   |    1 -
 arch/powerpc/Kconfig  |    1 -
 arch/sh/Kconfig       |    3 ---
 7 files changed, 0 insertions(+), 9 deletions(-)

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index b6f3ad5..c709715 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -38,7 +38,6 @@ config BLACKFIN
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_ATOMIC64
 	select GENERIC_IRQ_PROBE
-	select IRQ_PER_CPU if SMP
 	select USE_GENERIC_SMP_HELPERS if SMP
 	select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
 	select GENERIC_SMP_IDLE_THREAD
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 0744f7d..800dd9c 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -12,7 +12,6 @@ config HEXAGON
 	# select ARCH_WANT_OPTIONAL_GPIOLIB
 	# select ARCH_REQUIRE_GPIOLIB
 	# select HAVE_CLK
-	# select IRQ_PER_CPU
 	# select GENERIC_PENDING_IRQ if SMP
 	select HAVE_IRQ_WORK
 	select GENERIC_ATOMIC64
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 3279646..00c2e88 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -29,7 +29,6 @@ config IA64
 	select ARCH_DISCARD_MEMBLOCK
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PENDING_IRQ if SMP
-	select IRQ_PER_CPU
 	select GENERIC_IRQ_SHOW
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index dba9390..d47de79 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2197,7 +2197,6 @@ source "mm/Kconfig"
 config SMP
 	bool "Multi-Processing support"
 	depends on SYS_SUPPORTS_SMP
-	select IRQ_PER_CPU
 	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one CPU. If you have
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 11def45..6d37987 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -16,7 +16,6 @@ config PARISC
 	select BROKEN_RODATA
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PCI_IOMAP
-	select IRQ_PER_CPU
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_STRNCPY_FROM_USER
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a902a5c..721dd7b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -125,7 +125,6 @@ config PPC
 	select HAVE_GENERIC_HARDIRQS
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select SPARSE_IRQ
-	select IRQ_PER_CPU
 	select IRQ_DOMAIN
 	select GENERIC_IRQ_SHOW
 	select GENERIC_IRQ_SHOW_LEVEL
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index babc2b8..6f799ec 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -91,9 +91,6 @@ config GENERIC_CSUM
 config GENERIC_HWEIGHT
 	def_bool y
 
-config IRQ_PER_CPU
-	def_bool y
-
 config GENERIC_GPIO
 	def_bool n
 
-- 
1.7.7.6


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From: "Luck, Tony" <tony.luck@intel.com>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: RE: [PATCH 1/1] arch Kconfig: remove references to IRQ_PER_CPU
Date: Tue, 13 Nov 2012 21:28:11 +0000
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To: James Hogan <james.hogan@imgtec.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.hexagon/480>

> But IRQ_PER_CPU wasn't removed from any of the architecture Kconfig
> files where it was defined or selected. It's completely unused so remove
> the remaining references.

Acked-by: Tony Luck <tony.luck@intel.com>

[Hope someone picks up this whole patch ... otherwise I can take the ia64 hunk]

From - Thu Nov 08 21:08:43 2018
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From: Richard Kuo <rkuo@codeaurora.org>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 1/1] arch Kconfig: remove references to IRQ_PER_CPU
Date: Tue, 13 Nov 2012 18:53:41 -0600
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Cc: linux-kernel@vger.kernel.org,
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To: James Hogan <james.hogan@imgtec.com>
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On Tue, Nov 13, 2012 at 11:59:08AM +0000, James Hogan wrote:
> The IRQ_PER_CPU Kconfig symbol was removed in the following commit:
> 
> Commit 6a58fb3bad099076f36f0f30f44507bc3275cdb6 ("genirq: Remove
> CONFIG_IRQ_PER_CPU") merged in v2.6.39-rc1.
> 
> But IRQ_PER_CPU wasn't removed from any of the architecture Kconfig
> files where it was defined or selected. It's completely unused so remove
> the remaining references.
> 
> Signed-off-by: James Hogan <james.hogan@imgtec.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Mike Frysinger <vapier@gentoo.org>
> Cc: Richard Kuo <rkuo@codeaurora.org>
> Cc: Tony Luck <tony.luck@intel.com>
> Cc: Fenghua Yu <fenghua.yu@intel.com>
> Cc: Ralf Baechle <ralf@linux-mips.org>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Paul Mundt <lethal@linux-sh.org>
> ---
> Based on v3.7-rc5.
> 
> Compile tested defconfigs for bfin, ia64, mips, parisc, powerpc, sh, but
> not hexagon.
> 
> Grepped entire tree to check no references to CONFIG_IRQ_PER_CPU, and
> grepped arch/ for Kconfig files referencing IRQ_PER_CPU.
> 
>  arch/blackfin/Kconfig |    1 -
>  arch/hexagon/Kconfig  |    1 -
>  arch/ia64/Kconfig     |    1 -
>  arch/mips/Kconfig     |    1 -
>  arch/parisc/Kconfig   |    1 -
>  arch/powerpc/Kconfig  |    1 -
>  arch/sh/Kconfig       |    3 ---
>  7 files changed, 0 insertions(+), 9 deletions(-)
> 

Hexagon's was commented out anyways, but thanks for pointing it out.

Acked-by: Richard Kuo <rkuo@codeaurora.org>

-- 

Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
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From - Thu Nov 08 21:08:44 2018
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From: Bill Pemberton <wfp5p@virginia.edu>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.alsa.devel,gmane.linux.ports.arm.kernel
Subject: [PATCH 128/493] sound: remove use of __devexit_p
Date: Mon, 19 Nov 2012 13:21:17 -0500
Lines: 1593
Approved: news@gmane.org
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Cc: Russell King <linux@arm.linux.org.uk>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.de>,
	Eric Miao <eric.y.miao@gmail.com>,
	Haojian Zhuang <haojian.zhuang@gmail.com>,
	Clemens Ladisch <clemens@ladisch.de>,
	Thibaut Varene <T-Bone@parisc-linux.org>,
	Jaya Kumar <jayakumar.alsa@gmail.com>,
	alsa-devel@alsa-project.org, linux-arm-kernel@lists.infradead.org,
	linux-parisc@vger.kernel.org
To: gregkh@linuxfoundation.org
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Xref: news.gmane.org gmane.linux.ports.parisc:4674 gmane.linux.alsa.devel:103046 gmane.linux.ports.arm.kernel:201107
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/4674>

CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Russell King <linux@arm.linux.org.uk> 
Cc: Jaroslav Kysela <perex@perex.cz> 
Cc: Takashi Iwai <tiwai@suse.de> 
Cc: Eric Miao <eric.y.miao@gmail.com> 
Cc: Haojian Zhuang <haojian.zhuang@gmail.com> 
Cc: Clemens Ladisch <clemens@ladisch.de> 
Cc: Thibaut Varene <T-Bone@parisc-linux.org> 
Cc: Jaya Kumar <jayakumar.alsa@gmail.com> 
Cc: alsa-devel@alsa-project.org 
Cc: linux-arm-kernel@lists.infradead.org 
Cc: linux-parisc@vger.kernel.org 
---
 sound/arm/aaci.c                    | 2 +-
 sound/arm/pxa2xx-ac97.c             | 2 +-
 sound/atmel/abdac.c                 | 2 +-
 sound/atmel/ac97c.c                 | 2 +-
 sound/drivers/aloop.c               | 2 +-
 sound/drivers/dummy.c               | 2 +-
 sound/drivers/mpu401/mpu401.c       | 4 ++--
 sound/drivers/mtpav.c               | 2 +-
 sound/drivers/mts64.c               | 2 +-
 sound/drivers/pcsp/pcsp.c           | 2 +-
 sound/drivers/portman2x4.c          | 2 +-
 sound/drivers/serial-u16550.c       | 2 +-
 sound/drivers/virmidi.c             | 2 +-
 sound/firewire/speakers.c           | 2 +-
 sound/isa/ad1816a/ad1816a.c         | 2 +-
 sound/isa/ad1848/ad1848.c           | 2 +-
 sound/isa/adlib.c                   | 2 +-
 sound/isa/als100.c                  | 2 +-
 sound/isa/azt2320.c                 | 2 +-
 sound/isa/cmi8328.c                 | 2 +-
 sound/isa/cmi8330.c                 | 4 ++--
 sound/isa/cs423x/cs4231.c           | 2 +-
 sound/isa/cs423x/cs4236.c           | 6 +++---
 sound/isa/es1688/es1688.c           | 4 ++--
 sound/isa/es18xx.c                  | 6 +++---
 sound/isa/galaxy/galaxy.c           | 2 +-
 sound/isa/gus/gusclassic.c          | 2 +-
 sound/isa/gus/gusextreme.c          | 2 +-
 sound/isa/gus/gusmax.c              | 2 +-
 sound/isa/gus/interwave.c           | 4 ++--
 sound/isa/msnd/msnd_pinnacle.c      | 4 ++--
 sound/isa/opl3sa2.c                 | 6 +++---
 sound/isa/opti9xx/miro.c            | 4 ++--
 sound/isa/opti9xx/opti92x-ad1848.c  | 4 ++--
 sound/isa/sb/jazz16.c               | 2 +-
 sound/isa/sb/sb16.c                 | 4 ++--
 sound/isa/sb/sb8.c                  | 2 +-
 sound/isa/sc6000.c                  | 2 +-
 sound/isa/sscape.c                  | 4 ++--
 sound/isa/wavefront/wavefront.c     | 4 ++--
 sound/mips/hal2.c                   | 2 +-
 sound/mips/sgio2audio.c             | 2 +-
 sound/oss/kahlua.c                  | 2 +-
 sound/parisc/harmony.c              | 2 +-
 sound/pci/ad1889.c                  | 2 +-
 sound/pci/ali5451/ali5451.c         | 2 +-
 sound/pci/als300.c                  | 2 +-
 sound/pci/als4000.c                 | 2 +-
 sound/pci/asihpi/asihpi.c           | 2 +-
 sound/pci/atiixp.c                  | 2 +-
 sound/pci/atiixp_modem.c            | 2 +-
 sound/pci/au88x0/au88x0.c           | 2 +-
 sound/pci/aw2/aw2-alsa.c            | 2 +-
 sound/pci/azt3328.c                 | 2 +-
 sound/pci/bt87x.c                   | 2 +-
 sound/pci/ca0106/ca0106_main.c      | 2 +-
 sound/pci/cmipci.c                  | 2 +-
 sound/pci/cs4281.c                  | 2 +-
 sound/pci/cs46xx/cs46xx.c           | 2 +-
 sound/pci/cs5530.c                  | 2 +-
 sound/pci/cs5535audio/cs5535audio.c | 2 +-
 sound/pci/ctxfi/xfi.c               | 2 +-
 sound/pci/echoaudio/echoaudio.c     | 2 +-
 sound/pci/emu10k1/emu10k1.c         | 2 +-
 sound/pci/emu10k1/emu10k1x.c        | 2 +-
 sound/pci/ens1370.c                 | 2 +-
 sound/pci/es1938.c                  | 2 +-
 sound/pci/es1968.c                  | 2 +-
 sound/pci/fm801.c                   | 2 +-
 sound/pci/hda/hda_intel.c           | 2 +-
 sound/pci/ice1712/ice1712.c         | 2 +-
 sound/pci/ice1712/ice1724.c         | 2 +-
 sound/pci/intel8x0.c                | 2 +-
 sound/pci/intel8x0m.c               | 2 +-
 sound/pci/korg1212/korg1212.c       | 2 +-
 sound/pci/lola/lola.c               | 2 +-
 sound/pci/lx6464es/lx6464es.c       | 2 +-
 sound/pci/maestro3.c                | 2 +-
 sound/pci/mixart/mixart.c           | 2 +-
 sound/pci/nm256/nm256.c             | 2 +-
 sound/pci/oxygen/oxygen.c           | 2 +-
 sound/pci/oxygen/virtuoso.c         | 2 +-
 sound/pci/pcxhr/pcxhr.c             | 2 +-
 sound/pci/riptide/riptide.c         | 4 ++--
 sound/pci/rme32.c                   | 2 +-
 sound/pci/rme96.c                   | 2 +-
 sound/pci/rme9652/hdsp.c            | 2 +-
 sound/pci/rme9652/hdspm.c           | 2 +-
 sound/pci/rme9652/rme9652.c         | 2 +-
 sound/pci/sis7019.c                 | 2 +-
 sound/pci/sonicvibes.c              | 2 +-
 sound/pci/trident/trident.c         | 2 +-
 sound/pci/via82xx.c                 | 2 +-
 sound/pci/via82xx_modem.c           | 2 +-
 sound/pci/vx222/vx222.c             | 2 +-
 sound/pci/ymfpci/ymfpci.c           | 2 +-
 sound/ppc/powermac.c                | 2 +-
 sound/sh/aica.c                     | 2 +-
 sound/sparc/cs4231.c                | 2 +-
 sound/sparc/dbri.c                  | 2 +-
 sound/spi/at73c213.c                | 2 +-
 101 files changed, 118 insertions(+), 118 deletions(-)

diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index 5119fda..eb9cad3 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -1104,7 +1104,7 @@ static struct amba_driver aaci_driver = {
 		.name	= DRIVER_NAME,
 	},
 	.probe		= aaci_probe,
-	.remove		= __devexit_p(aaci_remove),
+	.remove		= aaci_remove,
 	.suspend	= aaci_suspend,
 	.resume		= aaci_resume,
 	.id_table	= aaci_ids,
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index 4e1fda7..6a5d7b3 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -239,7 +239,7 @@ static int __devexit pxa2xx_ac97_remove(struct platform_device *dev)
 
 static struct platform_driver pxa2xx_ac97_driver = {
 	.probe		= pxa2xx_ac97_probe,
-	.remove		= __devexit_p(pxa2xx_ac97_remove),
+	.remove		= pxa2xx_ac97_remove,
 	.driver		= {
 		.name	= "pxa2xx-ac97",
 		.owner	= THIS_MODULE,
diff --git a/sound/atmel/abdac.c b/sound/atmel/abdac.c
index 277ebce..ba14434 100644
--- a/sound/atmel/abdac.c
+++ b/sound/atmel/abdac.c
@@ -589,7 +589,7 @@ static int __devexit atmel_abdac_remove(struct platform_device *pdev)
 }
 
 static struct platform_driver atmel_abdac_driver = {
-	.remove		= __devexit_p(atmel_abdac_remove),
+	.remove		= atmel_abdac_remove,
 	.driver		= {
 		.name	= "atmel_abdac",
 		.owner	= THIS_MODULE,
diff --git a/sound/atmel/ac97c.c b/sound/atmel/ac97c.c
index 9052aff..a4bcd8d 100644
--- a/sound/atmel/ac97c.c
+++ b/sound/atmel/ac97c.c
@@ -1205,7 +1205,7 @@ static int __devexit atmel_ac97c_remove(struct platform_device *pdev)
 }
 
 static struct platform_driver atmel_ac97c_driver = {
-	.remove		= __devexit_p(atmel_ac97c_remove),
+	.remove		= atmel_ac97c_remove,
 	.driver		= {
 		.name	= "atmel_ac97c",
 		.owner	= THIS_MODULE,
diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
index 1904046..c4ed8ef 100644
--- a/sound/drivers/aloop.c
+++ b/sound/drivers/aloop.c
@@ -1215,7 +1215,7 @@ static SIMPLE_DEV_PM_OPS(loopback_pm, loopback_suspend, loopback_resume);
 
 static struct platform_driver loopback_driver = {
 	.probe		= loopback_probe,
-	.remove		= __devexit_p(loopback_remove),
+	.remove		= loopback_remove,
 	.driver		= {
 		.name	= SND_LOOPBACK_DRIVER,
 		.owner	= THIS_MODULE,
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index 4f522cf4..339a924 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -1162,7 +1162,7 @@ static SIMPLE_DEV_PM_OPS(snd_dummy_pm, snd_dummy_suspend, snd_dummy_resume);
 
 static struct platform_driver snd_dummy_driver = {
 	.probe		= snd_dummy_probe,
-	.remove		= __devexit_p(snd_dummy_remove),
+	.remove		= snd_dummy_remove,
 	.driver		= {
 		.name	= SND_DUMMY_DRIVER,
 		.owner	= THIS_MODULE,
diff --git a/sound/drivers/mpu401/mpu401.c b/sound/drivers/mpu401/mpu401.c
index bc03a20..5a7136e 100644
--- a/sound/drivers/mpu401/mpu401.c
+++ b/sound/drivers/mpu401/mpu401.c
@@ -137,7 +137,7 @@ static int __devexit snd_mpu401_remove(struct platform_device *devptr)
 
 static struct platform_driver snd_mpu401_driver = {
 	.probe		= snd_mpu401_probe,
-	.remove		= __devexit_p(snd_mpu401_remove),
+	.remove		= snd_mpu401_remove,
 	.driver		= {
 		.name	= SND_MPU401_DRIVER,
 		.owner	= THIS_MODULE,
@@ -223,7 +223,7 @@ static struct pnp_driver snd_mpu401_pnp_driver = {
 	.name = "mpu401",
 	.id_table = snd_mpu401_pnpids,
 	.probe = snd_mpu401_pnp_probe,
-	.remove = __devexit_p(snd_mpu401_pnp_remove),
+	.remove = snd_mpu401_pnp_remove,
 };
 #else
 static struct pnp_driver snd_mpu401_pnp_driver;
diff --git a/sound/drivers/mtpav.c b/sound/drivers/mtpav.c
index cad73af..ebeff33 100644
--- a/sound/drivers/mtpav.c
+++ b/sound/drivers/mtpav.c
@@ -757,7 +757,7 @@ static int __devexit snd_mtpav_remove(struct platform_device *devptr)
 
 static struct platform_driver snd_mtpav_driver = {
 	.probe		= snd_mtpav_probe,
-	.remove		= __devexit_p(snd_mtpav_remove),
+	.remove		= snd_mtpav_remove,
 	.driver		= {
 		.name	= SND_MTPAV_DRIVER,
 		.owner	= THIS_MODULE,
diff --git a/sound/drivers/mts64.c b/sound/drivers/mts64.c
index 2d5514b..d2b9e09 100644
--- a/sound/drivers/mts64.c
+++ b/sound/drivers/mts64.c
@@ -1038,7 +1038,7 @@ static int __devexit snd_mts64_remove(struct platform_device *pdev)
 
 static struct platform_driver snd_mts64_driver = {
 	.probe  = snd_mts64_probe,
-	.remove = __devexit_p(snd_mts64_remove),
+	.remove = snd_mts64_remove,
 	.driver = {
 		.name = PLATFORM_DRIVER,
 		.owner	= THIS_MODULE,
diff --git a/sound/drivers/pcsp/pcsp.c b/sound/drivers/pcsp/pcsp.c
index ef17129..c9e5af9 100644
--- a/sound/drivers/pcsp/pcsp.c
+++ b/sound/drivers/pcsp/pcsp.c
@@ -227,7 +227,7 @@ static struct platform_driver pcsp_platform_driver = {
 		.pm	= PCSP_PM_OPS,
 	},
 	.probe		= pcsp_probe,
-	.remove		= __devexit_p(pcsp_remove),
+	.remove		= pcsp_remove,
 	.shutdown	= pcsp_shutdown,
 };
 
diff --git a/sound/drivers/portman2x4.c b/sound/drivers/portman2x4.c
index 8364855..c7df9dd 100644
--- a/sound/drivers/portman2x4.c
+++ b/sound/drivers/portman2x4.c
@@ -827,7 +827,7 @@ static int __devexit snd_portman_remove(struct platform_device *pdev)
 
 static struct platform_driver snd_portman_driver = {
 	.probe  = snd_portman_probe,
-	.remove = __devexit_p(snd_portman_remove),
+	.remove = snd_portman_remove,
 	.driver = {
 		.name = PLATFORM_DRIVER,
 		.owner	= THIS_MODULE,
diff --git a/sound/drivers/serial-u16550.c b/sound/drivers/serial-u16550.c
index 8670067..8930e23 100644
--- a/sound/drivers/serial-u16550.c
+++ b/sound/drivers/serial-u16550.c
@@ -993,7 +993,7 @@ static int __devexit snd_serial_remove(struct platform_device *devptr)
 
 static struct platform_driver snd_serial_driver = {
 	.probe		= snd_serial_probe,
-	.remove		= __devexit_p( snd_serial_remove),
+	.remove		=  snd_serial_remove,
 	.driver		= {
 		.name	= SND_SERIAL_DRIVER,
 		.owner	= THIS_MODULE,
diff --git a/sound/drivers/virmidi.c b/sound/drivers/virmidi.c
index d7d514d..edcc0b1 100644
--- a/sound/drivers/virmidi.c
+++ b/sound/drivers/virmidi.c
@@ -140,7 +140,7 @@ static int __devexit snd_virmidi_remove(struct platform_device *devptr)
 
 static struct platform_driver snd_virmidi_driver = {
 	.probe		= snd_virmidi_probe,
-	.remove		= __devexit_p(snd_virmidi_remove),
+	.remove		= snd_virmidi_remove,
 	.driver		= {
 		.name	= SND_VIRMIDI_DRIVER,
 		.owner	= THIS_MODULE,
diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
index 297244e..040acff 100644
--- a/sound/firewire/speakers.c
+++ b/sound/firewire/speakers.c
@@ -834,7 +834,7 @@ static struct fw_driver fwspk_driver = {
 		.name	= KBUILD_MODNAME,
 		.bus	= &fw_bus_type,
 		.probe	= fwspk_probe,
-		.remove	= __devexit_p(fwspk_remove),
+		.remove	= fwspk_remove,
 	},
 	.update   = fwspk_bus_reset,
 	.id_table = fwspk_id_table,
diff --git a/sound/isa/ad1816a/ad1816a.c b/sound/isa/ad1816a/ad1816a.c
index 2c2f829..e8c54d8 100644
--- a/sound/isa/ad1816a/ad1816a.c
+++ b/sound/isa/ad1816a/ad1816a.c
@@ -270,7 +270,7 @@ static struct pnp_card_driver ad1816a_pnpc_driver = {
 	.name		= "ad1816a",
 	.id_table	= snd_ad1816a_pnpids,
 	.probe		= snd_ad1816a_pnp_detect,
-	.remove		= __devexit_p(snd_ad1816a_pnp_remove),
+	.remove		= snd_ad1816a_pnp_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_ad1816a_pnp_suspend,
 	.resume		= snd_ad1816a_pnp_resume,
diff --git a/sound/isa/ad1848/ad1848.c b/sound/isa/ad1848/ad1848.c
index 2af77fa..8e0a9b7 100644
--- a/sound/isa/ad1848/ad1848.c
+++ b/sound/isa/ad1848/ad1848.c
@@ -164,7 +164,7 @@ static int snd_ad1848_resume(struct device *dev, unsigned int n)
 static struct isa_driver snd_ad1848_driver = {
 	.match		= snd_ad1848_match,
 	.probe		= snd_ad1848_probe,
-	.remove		= __devexit_p(snd_ad1848_remove),
+	.remove		= snd_ad1848_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_ad1848_suspend,
 	.resume		= snd_ad1848_resume,
diff --git a/sound/isa/adlib.c b/sound/isa/adlib.c
index 4d50c69..87add77 100644
--- a/sound/isa/adlib.c
+++ b/sound/isa/adlib.c
@@ -108,7 +108,7 @@ static int __devexit snd_adlib_remove(struct device *dev, unsigned int n)
 static struct isa_driver snd_adlib_driver = {
 	.match		= snd_adlib_match,
 	.probe		= snd_adlib_probe,
-	.remove		= __devexit_p(snd_adlib_remove),
+	.remove		= snd_adlib_remove,
 
 	.driver		= {
 		.name	= DEV_NAME
diff --git a/sound/isa/als100.c b/sound/isa/als100.c
index f7cdaf5..60c96a1 100644
--- a/sound/isa/als100.c
+++ b/sound/isa/als100.c
@@ -344,7 +344,7 @@ static struct pnp_card_driver als100_pnpc_driver = {
 	.name		= "als100",
         .id_table       = snd_als100_pnpids,
         .probe          = snd_als100_pnp_detect,
-        .remove         = __devexit_p(snd_als100_pnp_remove),
+	.remove		= snd_als100_pnp_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_als100_pnp_suspend,
 	.resume		= snd_als100_pnp_resume,
diff --git a/sound/isa/azt2320.c b/sound/isa/azt2320.c
index 6a2c78e..219b611 100644
--- a/sound/isa/azt2320.c
+++ b/sound/isa/azt2320.c
@@ -320,7 +320,7 @@ static struct pnp_card_driver azt2320_pnpc_driver = {
 	.name           = "azt2320",
 	.id_table       = snd_azt2320_pnpids,
 	.probe          = snd_azt2320_pnp_detect,
-	.remove         = __devexit_p(snd_azt2320_pnp_remove),
+	.remove         = snd_azt2320_pnp_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_azt2320_pnp_suspend,
 	.resume		= snd_azt2320_pnp_resume,
diff --git a/sound/isa/cmi8328.c b/sound/isa/cmi8328.c
index bde6013..55fabcf 100644
--- a/sound/isa/cmi8328.c
+++ b/sound/isa/cmi8328.c
@@ -459,7 +459,7 @@ static int snd_cmi8328_resume(struct device *pdev, unsigned int n)
 
 static struct isa_driver snd_cmi8328_driver = {
 	.probe		= snd_cmi8328_probe,
-	.remove		= __devexit_p(snd_cmi8328_remove),
+	.remove		= snd_cmi8328_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_cmi8328_suspend,
 	.resume		= snd_cmi8328_resume,
diff --git a/sound/isa/cmi8330.c b/sound/isa/cmi8330.c
index 7bd5e33..ee534e1 100644
--- a/sound/isa/cmi8330.c
+++ b/sound/isa/cmi8330.c
@@ -673,7 +673,7 @@ static int snd_cmi8330_isa_resume(struct device *dev, unsigned int n)
 static struct isa_driver snd_cmi8330_driver = {
 	.match		= snd_cmi8330_isa_match,
 	.probe		= snd_cmi8330_isa_probe,
-	.remove		= __devexit_p(snd_cmi8330_isa_remove),
+	.remove		= snd_cmi8330_isa_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_cmi8330_isa_suspend,
 	.resume		= snd_cmi8330_isa_resume,
@@ -740,7 +740,7 @@ static struct pnp_card_driver cmi8330_pnpc_driver = {
 	.name = "cmi8330",
 	.id_table = snd_cmi8330_pnpids,
 	.probe = snd_cmi8330_pnp_detect,
-	.remove = __devexit_p(snd_cmi8330_pnp_remove),
+	.remove = snd_cmi8330_pnp_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_cmi8330_pnp_suspend,
 	.resume		= snd_cmi8330_pnp_resume,
diff --git a/sound/isa/cs423x/cs4231.c b/sound/isa/cs423x/cs4231.c
index 99dda45..0c67c37 100644
--- a/sound/isa/cs423x/cs4231.c
+++ b/sound/isa/cs423x/cs4231.c
@@ -180,7 +180,7 @@ static int snd_cs4231_resume(struct device *dev, unsigned int n)
 static struct isa_driver snd_cs4231_driver = {
 	.match		= snd_cs4231_match,
 	.probe		= snd_cs4231_probe,
-	.remove		= __devexit_p(snd_cs4231_remove),
+	.remove		= snd_cs4231_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_cs4231_suspend,
 	.resume		= snd_cs4231_resume,
diff --git a/sound/isa/cs423x/cs4236.c b/sound/isa/cs423x/cs4236.c
index 740c51a..f5fba07 100644
--- a/sound/isa/cs423x/cs4236.c
+++ b/sound/isa/cs423x/cs4236.c
@@ -540,7 +540,7 @@ static int snd_cs423x_isa_resume(struct device *dev, unsigned int n)
 static struct isa_driver cs423x_isa_driver = {
 	.match		= snd_cs423x_isa_match,
 	.probe		= snd_cs423x_isa_probe,
-	.remove		= __devexit_p(snd_cs423x_isa_remove),
+	.remove		= snd_cs423x_isa_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_cs423x_isa_suspend,
 	.resume		= snd_cs423x_isa_resume,
@@ -619,7 +619,7 @@ static struct pnp_driver cs423x_pnp_driver = {
 	.name = "cs423x-pnpbios",
 	.id_table = snd_cs423x_pnpbiosids,
 	.probe = snd_cs423x_pnpbios_detect,
-	.remove = __devexit_p(snd_cs423x_pnp_remove),
+	.remove = snd_cs423x_pnp_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_cs423x_pnp_suspend,
 	.resume		= snd_cs423x_pnp_resume,
@@ -682,7 +682,7 @@ static struct pnp_card_driver cs423x_pnpc_driver = {
 	.name = CS423X_ISAPNP_DRIVER,
 	.id_table = snd_cs423x_pnpids,
 	.probe = snd_cs423x_pnpc_detect,
-	.remove = __devexit_p(snd_cs423x_pnpc_remove),
+	.remove = snd_cs423x_pnpc_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_cs423x_pnpc_suspend,
 	.resume		= snd_cs423x_pnpc_resume,
diff --git a/sound/isa/es1688/es1688.c b/sound/isa/es1688/es1688.c
index b036e60..ffad710 100644
--- a/sound/isa/es1688/es1688.c
+++ b/sound/isa/es1688/es1688.c
@@ -220,7 +220,7 @@ static int __devexit snd_es1688_isa_remove(struct device *dev, unsigned int n)
 static struct isa_driver snd_es1688_driver = {
 	.match		= snd_es1688_match,
 	.probe		= snd_es1688_isa_probe,
-	.remove		= __devexit_p(snd_es1688_isa_remove),
+	.remove		= snd_es1688_isa_remove,
 #if 0	/* FIXME */
 	.suspend	= snd_es1688_suspend,
 	.resume		= snd_es1688_resume,
@@ -338,7 +338,7 @@ static struct pnp_card_driver es968_pnpc_driver = {
 	.name		= DEV_NAME " PnP",
 	.id_table	= snd_es968_pnpids,
 	.probe		= snd_es968_pnp_detect,
-	.remove		= __devexit_p(snd_es968_pnp_remove),
+	.remove		= snd_es968_pnp_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_es968_pnp_suspend,
 	.resume		= snd_es968_pnp_resume,
diff --git a/sound/isa/es18xx.c b/sound/isa/es18xx.c
index c20baaf..b491185 100644
--- a/sound/isa/es18xx.c
+++ b/sound/isa/es18xx.c
@@ -2257,7 +2257,7 @@ static int snd_es18xx_isa_resume(struct device *dev, unsigned int n)
 static struct isa_driver snd_es18xx_isa_driver = {
 	.match		= snd_es18xx_isa_match,
 	.probe		= snd_es18xx_isa_probe,
-	.remove		= __devexit_p(snd_es18xx_isa_remove),
+	.remove		= snd_es18xx_isa_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_es18xx_isa_suspend,
 	.resume		= snd_es18xx_isa_resume,
@@ -2323,7 +2323,7 @@ static struct pnp_driver es18xx_pnp_driver = {
 	.name = "es18xx-pnpbios",
 	.id_table = snd_audiodrive_pnpbiosids,
 	.probe = snd_audiodrive_pnp_detect,
-	.remove = __devexit_p(snd_audiodrive_pnp_remove),
+	.remove = snd_audiodrive_pnp_remove,
 #ifdef CONFIG_PM
 	.suspend = snd_audiodrive_pnp_suspend,
 	.resume = snd_audiodrive_pnp_resume,
@@ -2387,7 +2387,7 @@ static struct pnp_card_driver es18xx_pnpc_driver = {
 	.name = "es18xx",
 	.id_table = snd_audiodrive_pnpids,
 	.probe = snd_audiodrive_pnpc_detect,
-	.remove = __devexit_p(snd_audiodrive_pnpc_remove),
+	.remove = snd_audiodrive_pnpc_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_audiodrive_pnpc_suspend,
 	.resume		= snd_audiodrive_pnpc_resume,
diff --git a/sound/isa/galaxy/galaxy.c b/sound/isa/galaxy/galaxy.c
index 55e2078..1858535 100644
--- a/sound/isa/galaxy/galaxy.c
+++ b/sound/isa/galaxy/galaxy.c
@@ -630,7 +630,7 @@ static int __devexit snd_galaxy_remove(struct device *dev, unsigned int n)
 static struct isa_driver snd_galaxy_driver = {
 	.match		= snd_galaxy_match,
 	.probe		= snd_galaxy_probe,
-	.remove		= __devexit_p(snd_galaxy_remove),
+	.remove		= snd_galaxy_remove,
 
 	.driver		= {
 		.name	= DEV_NAME
diff --git a/sound/isa/gus/gusclassic.c b/sound/isa/gus/gusclassic.c
index bf63336..ec4bd7e 100644
--- a/sound/isa/gus/gusclassic.c
+++ b/sound/isa/gus/gusclassic.c
@@ -221,7 +221,7 @@ static int __devexit snd_gusclassic_remove(struct device *dev, unsigned int n)
 static struct isa_driver snd_gusclassic_driver = {
 	.match		= snd_gusclassic_match,
 	.probe		= snd_gusclassic_probe,
-	.remove		= __devexit_p(snd_gusclassic_remove),
+	.remove		= snd_gusclassic_remove,
 #if 0	/* FIXME */
 	.suspend	= snd_gusclassic_suspend,
 	.remove		= snd_gusclassic_remove,
diff --git a/sound/isa/gus/gusextreme.c b/sound/isa/gus/gusextreme.c
index bc10cc2..3d76215 100644
--- a/sound/isa/gus/gusextreme.c
+++ b/sound/isa/gus/gusextreme.c
@@ -349,7 +349,7 @@ static int __devexit snd_gusextreme_remove(struct device *dev, unsigned int n)
 static struct isa_driver snd_gusextreme_driver = {
 	.match		= snd_gusextreme_match,
 	.probe		= snd_gusextreme_probe,
-	.remove		= __devexit_p(snd_gusextreme_remove),
+	.remove		= snd_gusextreme_remove,
 #if 0	/* FIXME */
 	.suspend	= snd_gusextreme_suspend,
 	.resume		= snd_gusextreme_resume,
diff --git a/sound/isa/gus/gusmax.c b/sound/isa/gus/gusmax.c
index 41c3f44..fefd5ae 100644
--- a/sound/isa/gus/gusmax.c
+++ b/sound/isa/gus/gusmax.c
@@ -366,7 +366,7 @@ static int __devexit snd_gusmax_remove(struct device *devptr, unsigned int dev)
 static struct isa_driver snd_gusmax_driver = {
 	.match		= snd_gusmax_match,
 	.probe		= snd_gusmax_probe,
-	.remove		= __devexit_p(snd_gusmax_remove),
+	.remove		= snd_gusmax_remove,
 	/* FIXME: suspend/resume */
 	.driver		= {
 		.name	= DEV_NAME
diff --git a/sound/isa/gus/interwave.c b/sound/isa/gus/interwave.c
index 3fc8b66..c61a74c 100644
--- a/sound/isa/gus/interwave.c
+++ b/sound/isa/gus/interwave.c
@@ -856,7 +856,7 @@ static int __devexit snd_interwave_isa_remove(struct device *devptr, unsigned in
 static struct isa_driver snd_interwave_driver = {
 	.match		= snd_interwave_isa_match,
 	.probe		= snd_interwave_isa_probe,
-	.remove		= __devexit_p(snd_interwave_isa_remove),
+	.remove		= snd_interwave_isa_remove,
 	/* FIXME: suspend,resume */
 	.driver		= {
 		.name	= INTERWAVE_DRIVER
@@ -907,7 +907,7 @@ static struct pnp_card_driver interwave_pnpc_driver = {
 	.name = INTERWAVE_PNP_DRIVER,
 	.id_table = snd_interwave_pnpids,
 	.probe = snd_interwave_pnp_detect,
-	.remove = __devexit_p(snd_interwave_pnp_remove),
+	.remove = snd_interwave_pnp_remove,
 	/* FIXME: suspend,resume */
 };
 
diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c
index 29cc8e1..93cafbe 100644
--- a/sound/isa/msnd/msnd_pinnacle.c
+++ b/sound/isa/msnd/msnd_pinnacle.c
@@ -1073,7 +1073,7 @@ static int __devexit snd_msnd_isa_remove(struct device *pdev, unsigned int dev)
 static struct isa_driver snd_msnd_driver = {
 	.match		= snd_msnd_isa_match,
 	.probe		= snd_msnd_isa_probe,
-	.remove		= __devexit_p(snd_msnd_isa_remove),
+	.remove		= snd_msnd_isa_remove,
 	/* FIXME: suspend, resume */
 	.driver		= {
 		.name	= DEV_NAME
@@ -1207,7 +1207,7 @@ static struct pnp_card_driver msnd_pnpc_driver = {
 	.name = "msnd_pinnacle",
 	.id_table = msnd_pnpids,
 	.probe = snd_msnd_pnp_detect,
-	.remove = __devexit_p(snd_msnd_pnp_remove),
+	.remove = snd_msnd_pnp_remove,
 };
 #endif /* CONFIG_PNP */
 
diff --git a/sound/isa/opl3sa2.c b/sound/isa/opl3sa2.c
index f6cc0b9..99855d5 100644
--- a/sound/isa/opl3sa2.c
+++ b/sound/isa/opl3sa2.c
@@ -775,7 +775,7 @@ static struct pnp_driver opl3sa2_pnp_driver = {
 	.name = "snd-opl3sa2-pnpbios",
 	.id_table = snd_opl3sa2_pnpbiosids,
 	.probe = snd_opl3sa2_pnp_detect,
-	.remove = __devexit_p(snd_opl3sa2_pnp_remove),
+	.remove = snd_opl3sa2_pnp_remove,
 #ifdef CONFIG_PM
 	.suspend = snd_opl3sa2_pnp_suspend,
 	.resume = snd_opl3sa2_pnp_resume,
@@ -842,7 +842,7 @@ static struct pnp_card_driver opl3sa2_pnpc_driver = {
 	.name = "snd-opl3sa2-cpnp",
 	.id_table = snd_opl3sa2_pnpids,
 	.probe = snd_opl3sa2_pnp_cdetect,
-	.remove = __devexit_p(snd_opl3sa2_pnp_cremove),
+	.remove = snd_opl3sa2_pnp_cremove,
 #ifdef CONFIG_PM
 	.suspend = snd_opl3sa2_pnp_csuspend,
 	.resume = snd_opl3sa2_pnp_cresume,
@@ -922,7 +922,7 @@ static int snd_opl3sa2_isa_resume(struct device *dev, unsigned int n)
 static struct isa_driver snd_opl3sa2_isa_driver = {
 	.match		= snd_opl3sa2_isa_match,
 	.probe		= snd_opl3sa2_isa_probe,
-	.remove		= __devexit_p(snd_opl3sa2_isa_remove),
+	.remove		= snd_opl3sa2_isa_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_opl3sa2_isa_suspend,
 	.resume		= snd_opl3sa2_isa_resume,
diff --git a/sound/isa/opti9xx/miro.c b/sound/isa/opti9xx/miro.c
index 4a7ff4e..cb8c930 100644
--- a/sound/isa/opti9xx/miro.c
+++ b/sound/isa/opti9xx/miro.c
@@ -1504,7 +1504,7 @@ static int __devexit snd_miro_isa_remove(struct device *devptr,
 static struct isa_driver snd_miro_driver = {
 	.match		= snd_miro_isa_match,
 	.probe		= snd_miro_isa_probe,
-	.remove		= __devexit_p(snd_miro_isa_remove),
+	.remove		= snd_miro_isa_remove,
 	/* FIXME: suspend/resume */
 	.driver		= {
 		.name	= DEV_NAME
@@ -1636,7 +1636,7 @@ static struct pnp_card_driver miro_pnpc_driver = {
 	.name		= "miro",
 	.id_table	= snd_miro_pnpids,
 	.probe		= snd_miro_pnp_probe,
-	.remove		= __devexit_p(snd_miro_pnp_remove),
+	.remove		= snd_miro_pnp_remove,
 };
 #endif
 
diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index 2899c9f..72b1769 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -1083,7 +1083,7 @@ static int snd_opti9xx_isa_resume(struct device *dev, unsigned int n)
 static struct isa_driver snd_opti9xx_driver = {
 	.match		= snd_opti9xx_isa_match,
 	.probe		= snd_opti9xx_isa_probe,
-	.remove		= __devexit_p(snd_opti9xx_isa_remove),
+	.remove		= snd_opti9xx_isa_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_opti9xx_isa_suspend,
 	.resume		= snd_opti9xx_isa_resume,
@@ -1171,7 +1171,7 @@ static struct pnp_card_driver opti9xx_pnpc_driver = {
 	.name		= "opti9xx",
 	.id_table	= snd_opti9xx_pnpids,
 	.probe		= snd_opti9xx_pnp_probe,
-	.remove		= __devexit_p(snd_opti9xx_pnp_remove),
+	.remove		= snd_opti9xx_pnp_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_opti9xx_pnp_suspend,
 	.resume		= snd_opti9xx_pnp_resume,
diff --git a/sound/isa/sb/jazz16.c b/sound/isa/sb/jazz16.c
index 410758c..529f175 100644
--- a/sound/isa/sb/jazz16.c
+++ b/sound/isa/sb/jazz16.c
@@ -380,7 +380,7 @@ static int snd_jazz16_resume(struct device *pdev, unsigned int n)
 static struct isa_driver snd_jazz16_driver = {
 	.match		= snd_jazz16_match,
 	.probe		= snd_jazz16_probe,
-	.remove		= __devexit_p(snd_jazz16_remove),
+	.remove		= snd_jazz16_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_jazz16_suspend,
 	.resume		= snd_jazz16_resume,
diff --git a/sound/isa/sb/sb16.c b/sound/isa/sb/sb16.c
index 39b8eca..bb8a688 100644
--- a/sound/isa/sb/sb16.c
+++ b/sound/isa/sb/sb16.c
@@ -592,7 +592,7 @@ static int snd_sb16_isa_resume(struct device *dev, unsigned int n)
 static struct isa_driver snd_sb16_isa_driver = {
 	.match		= snd_sb16_isa_match,
 	.probe		= snd_sb16_isa_probe,
-	.remove		= __devexit_p(snd_sb16_isa_remove),
+	.remove		= snd_sb16_isa_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_sb16_isa_suspend,
 	.resume		= snd_sb16_isa_resume,
@@ -657,7 +657,7 @@ static struct pnp_card_driver sb16_pnpc_driver = {
 #endif
 	.id_table = snd_sb16_pnpids,
 	.probe = snd_sb16_pnp_detect,
-	.remove = __devexit_p(snd_sb16_pnp_remove),
+	.remove = snd_sb16_pnp_remove,
 #ifdef CONFIG_PM
 	.suspend = snd_sb16_pnp_suspend,
 	.resume = snd_sb16_pnp_resume,
diff --git a/sound/isa/sb/sb8.c b/sound/isa/sb/sb8.c
index ab5cebe..0cc9a9a 100644
--- a/sound/isa/sb/sb8.c
+++ b/sound/isa/sb/sb8.c
@@ -244,7 +244,7 @@ static int snd_sb8_resume(struct device *dev, unsigned int n)
 static struct isa_driver snd_sb8_driver = {
 	.match		= snd_sb8_match,
 	.probe		= snd_sb8_probe,
-	.remove		= __devexit_p(snd_sb8_remove),
+	.remove		= snd_sb8_remove,
 #ifdef CONFIG_PM
 	.suspend	= snd_sb8_suspend,
 	.resume		= snd_sb8_resume,
diff --git a/sound/isa/sc6000.c b/sound/isa/sc6000.c
index d97d0f3..57266de 100644
--- a/sound/isa/sc6000.c
+++ b/sound/isa/sc6000.c
@@ -706,7 +706,7 @@ static int __devexit snd_sc6000_remove(struct device *devptr, unsigned int dev)
 static struct isa_driver snd_sc6000_driver = {
 	.match		= snd_sc6000_match,
 	.probe		= snd_sc6000_probe,
-	.remove		= __devexit_p(snd_sc6000_remove),
+	.remove		= snd_sc6000_remove,
 	/* FIXME: suspend/resume */
 	.driver		= {
 		.name	= DRV_NAME,
diff --git a/sound/isa/sscape.c b/sound/isa/sscape.c
index 8490f59..eb8fe7f 100644
--- a/sound/isa/sscape.c
+++ b/sound/isa/sscape.c
@@ -1209,7 +1209,7 @@ static int __devexit snd_sscape_remove(struct device *devptr, unsigned int dev)
 static struct isa_driver snd_sscape_driver = {
 	.match		= snd_sscape_match,
 	.probe		= snd_sscape_probe,
-	.remove		= __devexit_p(snd_sscape_remove),
+	.remove		= snd_sscape_remove,
 	/* FIXME: suspend/resume */
 	.driver		= {
 		.name	= DEV_NAME
@@ -1321,7 +1321,7 @@ static struct pnp_card_driver sscape_pnpc_driver = {
 	.name = "sscape",
 	.id_table = sscape_pnpids,
 	.probe = sscape_pnp_detect,
-	.remove = __devexit_p(sscape_pnp_remove),
+	.remove = sscape_pnp_remove,
 };
 
 #endif /* CONFIG_PNP */
diff --git a/sound/isa/wavefront/wavefront.c b/sound/isa/wavefront/wavefront.c
index e0a7327..d700ca9 100644
--- a/sound/isa/wavefront/wavefront.c
+++ b/sound/isa/wavefront/wavefront.c
@@ -593,7 +593,7 @@ static int __devexit snd_wavefront_isa_remove(struct device *devptr,
 static struct isa_driver snd_wavefront_driver = {
 	.match		= snd_wavefront_isa_match,
 	.probe		= snd_wavefront_isa_probe,
-	.remove		= __devexit_p(snd_wavefront_isa_remove),
+	.remove		= snd_wavefront_isa_remove,
 	/* FIXME: suspend, resume */
 	.driver		= {
 		.name	= DEV_NAME
@@ -648,7 +648,7 @@ static struct pnp_card_driver wavefront_pnpc_driver = {
 	.name		= "wavefront",
 	.id_table	= snd_wavefront_pnpids,
 	.probe		= snd_wavefront_pnp_detect,
-	.remove		= __devexit_p(snd_wavefront_pnp_remove),
+	.remove		= snd_wavefront_pnp_remove,
 	/* FIXME: suspend,resume */
 };
 
diff --git a/sound/mips/hal2.c b/sound/mips/hal2.c
index 5f88d1f..0bd7fb5 100644
--- a/sound/mips/hal2.c
+++ b/sound/mips/hal2.c
@@ -928,7 +928,7 @@ static int __devexit hal2_remove(struct platform_device *pdev)
 
 static struct platform_driver hal2_driver = {
 	.probe	= hal2_probe,
-	.remove	= __devexit_p(hal2_remove),
+	.remove	= hal2_remove,
 	.driver = {
 		.name	= "sgihal2",
 		.owner	= THIS_MODULE,
diff --git a/sound/mips/sgio2audio.c b/sound/mips/sgio2audio.c
index ceaa593..b67d555 100644
--- a/sound/mips/sgio2audio.c
+++ b/sound/mips/sgio2audio.c
@@ -969,7 +969,7 @@ static int __devexit snd_sgio2audio_remove(struct platform_device *pdev)
 
 static struct platform_driver sgio2audio_driver = {
 	.probe	= snd_sgio2audio_probe,
-	.remove	= __devexit_p(snd_sgio2audio_remove),
+	.remove	= snd_sgio2audio_remove,
 	.driver = {
 		.name	= "sgio2audio",
 		.owner	= THIS_MODULE,
diff --git a/sound/oss/kahlua.c b/sound/oss/kahlua.c
index 52d06a3..f0836bc 100644
--- a/sound/oss/kahlua.c
+++ b/sound/oss/kahlua.c
@@ -210,7 +210,7 @@ static struct pci_driver kahlua_driver = {
 	.name		= "kahlua",
 	.id_table	= id_tbl,
 	.probe		= probe_one,
-	.remove		= __devexit_p(remove_one),
+	.remove		= remove_one,
 };
 
 
diff --git a/sound/parisc/harmony.c b/sound/parisc/harmony.c
index f47f9e2..41307cc 100644
--- a/sound/parisc/harmony.c
+++ b/sound/parisc/harmony.c
@@ -1024,7 +1024,7 @@ static struct parisc_driver snd_harmony_driver = {
 	.name = "harmony",
 	.id_table = snd_harmony_devtable,
 	.probe = snd_harmony_probe,
-	.remove = __devexit_p(snd_harmony_remove),
+	.remove = snd_harmony_remove,
 };
 
 static int __init 
diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index e672ff4..b4dc050 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -1059,7 +1059,7 @@ static struct pci_driver ad1889_pci_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_ad1889_ids,
 	.probe = snd_ad1889_probe,
-	.remove = __devexit_p(snd_ad1889_remove),
+	.remove = snd_ad1889_remove,
 };
 
 module_pci_driver(ad1889_pci_driver);
diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c
index c7e3c53..5550bfb 100644
--- a/sound/pci/ali5451/ali5451.c
+++ b/sound/pci/ali5451/ali5451.c
@@ -2305,7 +2305,7 @@ static struct pci_driver ali5451_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_ali_ids,
 	.probe = snd_ali_probe,
-	.remove = __devexit_p(snd_ali_remove),
+	.remove = snd_ali_remove,
 	.driver = {
 		.pm = ALI_PM_OPS,
 	},
diff --git a/sound/pci/als300.c b/sound/pci/als300.c
index 5af3cb6..4e7e625 100644
--- a/sound/pci/als300.c
+++ b/sound/pci/als300.c
@@ -867,7 +867,7 @@ static struct pci_driver als300_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_als300_ids,
 	.probe = snd_als300_probe,
-	.remove = __devexit_p(snd_als300_remove),
+	.remove = snd_als300_remove,
 	.driver = {
 		.pm = SND_ALS300_PM_OPS,
 	},
diff --git a/sound/pci/als4000.c b/sound/pci/als4000.c
index feb2a14..3e0461e 100644
--- a/sound/pci/als4000.c
+++ b/sound/pci/als4000.c
@@ -1046,7 +1046,7 @@ static struct pci_driver als4000_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_als4000_ids,
 	.probe = snd_card_als4000_probe,
-	.remove = __devexit_p(snd_card_als4000_remove),
+	.remove = snd_card_als4000_remove,
 	.driver = {
 		.pm = SND_ALS4000_PM_OPS,
 	},
diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c
index eedc017..7924f05 100644
--- a/sound/pci/asihpi/asihpi.c
+++ b/sound/pci/asihpi/asihpi.c
@@ -2967,7 +2967,7 @@ static struct pci_driver driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = asihpi_pci_tbl,
 	.probe = snd_asihpi_probe,
-	.remove = __devexit_p(snd_asihpi_remove),
+	.remove = snd_asihpi_remove,
 #ifdef CONFIG_PM_SLEEP
 /*	.suspend = snd_asihpi_suspend,
 	.resume = snd_asihpi_resume, */
diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index 368df8b..b281f2a 100644
--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -1720,7 +1720,7 @@ static struct pci_driver atiixp_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_atiixp_ids,
 	.probe = snd_atiixp_probe,
-	.remove = __devexit_p(snd_atiixp_remove),
+	.remove = snd_atiixp_remove,
 	.driver = {
 		.pm = SND_ATIIXP_PM_OPS,
 	},
diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c
index 6fc03d9..95b1cd2 100644
--- a/sound/pci/atiixp_modem.c
+++ b/sound/pci/atiixp_modem.c
@@ -1341,7 +1341,7 @@ static struct pci_driver atiixp_modem_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_atiixp_ids,
 	.probe = snd_atiixp_probe,
-	.remove = __devexit_p(snd_atiixp_remove),
+	.remove = snd_atiixp_remove,
 	.driver = {
 		.pm = SND_ATIIXP_PM_OPS,
 	},
diff --git a/sound/pci/au88x0/au88x0.c b/sound/pci/au88x0/au88x0.c
index ffc376f..1b24880 100644
--- a/sound/pci/au88x0/au88x0.c
+++ b/sound/pci/au88x0/au88x0.c
@@ -379,7 +379,7 @@ static struct pci_driver vortex_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_vortex_ids,
 	.probe = snd_vortex_probe,
-	.remove = __devexit_p(snd_vortex_remove),
+	.remove = snd_vortex_remove,
 };
 
 module_pci_driver(vortex_driver);
diff --git a/sound/pci/aw2/aw2-alsa.c b/sound/pci/aw2/aw2-alsa.c
index 0f80474..9a9b920 100644
--- a/sound/pci/aw2/aw2-alsa.c
+++ b/sound/pci/aw2/aw2-alsa.c
@@ -173,7 +173,7 @@ static struct pci_driver aw2_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_aw2_ids,
 	.probe = snd_aw2_probe,
-	.remove = __devexit_p(snd_aw2_remove),
+	.remove = snd_aw2_remove,
 };
 
 module_pci_driver(aw2_driver);
diff --git a/sound/pci/azt3328.c b/sound/pci/azt3328.c
index c03b66b..8a48a69 100644
--- a/sound/pci/azt3328.c
+++ b/sound/pci/azt3328.c
@@ -2872,7 +2872,7 @@ static struct pci_driver azf3328_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_azf3328_ids,
 	.probe = snd_azf3328_probe,
-	.remove = __devexit_p(snd_azf3328_remove),
+	.remove = snd_azf3328_remove,
 	.driver = {
 		.pm = SND_AZF3328_PM_OPS,
 	},
diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index b6a95ee..a0ee0c7 100644
--- a/sound/pci/bt87x.c
+++ b/sound/pci/bt87x.c
@@ -966,7 +966,7 @@ static struct pci_driver bt87x_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_bt87x_ids,
 	.probe = snd_bt87x_probe,
-	.remove = __devexit_p(snd_bt87x_remove),
+	.remove = snd_bt87x_remove,
 };
 
 module_pci_driver(bt87x_driver);
diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c
index 65c5591..030c846 100644
--- a/sound/pci/ca0106/ca0106_main.c
+++ b/sound/pci/ca0106/ca0106_main.c
@@ -1971,7 +1971,7 @@ static struct pci_driver ca0106_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_ca0106_ids,
 	.probe = snd_ca0106_probe,
-	.remove = __devexit_p(snd_ca0106_remove),
+	.remove = snd_ca0106_remove,
 	.driver = {
 		.pm = SND_CA0106_PM_OPS,
 	},
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c
index 22122ff..2a69cc3 100644
--- a/sound/pci/cmipci.c
+++ b/sound/pci/cmipci.c
@@ -3415,7 +3415,7 @@ static struct pci_driver cmipci_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_cmipci_ids,
 	.probe = snd_cmipci_probe,
-	.remove = __devexit_p(snd_cmipci_remove),
+	.remove = snd_cmipci_remove,
 	.driver = {
 		.pm = SND_CMIPCI_PM_OPS,
 	},
diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index 8e86ec0..0ecf782 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -2095,7 +2095,7 @@ static struct pci_driver cs4281_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_cs4281_ids,
 	.probe = snd_cs4281_probe,
-	.remove = __devexit_p(snd_cs4281_remove),
+	.remove = snd_cs4281_remove,
 	.driver = {
 		.pm = CS4281_PM_OPS,
 	},
diff --git a/sound/pci/cs46xx/cs46xx.c b/sound/pci/cs46xx/cs46xx.c
index 575bed0..e47fb8b 100644
--- a/sound/pci/cs46xx/cs46xx.c
+++ b/sound/pci/cs46xx/cs46xx.c
@@ -165,7 +165,7 @@ static struct pci_driver cs46xx_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_cs46xx_ids,
 	.probe = snd_card_cs46xx_probe,
-	.remove = __devexit_p(snd_card_cs46xx_remove),
+	.remove = snd_card_cs46xx_remove,
 #ifdef CONFIG_PM_SLEEP
 	.driver = {
 		.pm = &snd_cs46xx_pm,
diff --git a/sound/pci/cs5530.c b/sound/pci/cs5530.c
index d1cca28..ed68917 100644
--- a/sound/pci/cs5530.c
+++ b/sound/pci/cs5530.c
@@ -294,7 +294,7 @@ static struct pci_driver cs5530_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_cs5530_ids,
 	.probe = snd_cs5530_probe,
-	.remove = __devexit_p(snd_cs5530_remove),
+	.remove = snd_cs5530_remove,
 };
 
 module_pci_driver(cs5530_driver);
diff --git a/sound/pci/cs5535audio/cs5535audio.c b/sound/pci/cs5535audio/cs5535audio.c
index 4915efa..b3f25e4 100644
--- a/sound/pci/cs5535audio/cs5535audio.c
+++ b/sound/pci/cs5535audio/cs5535audio.c
@@ -398,7 +398,7 @@ static struct pci_driver cs5535audio_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_cs5535audio_ids,
 	.probe = snd_cs5535audio_probe,
-	.remove = __devexit_p(snd_cs5535audio_remove),
+	.remove = snd_cs5535audio_remove,
 #ifdef CONFIG_PM_SLEEP
 	.driver = {
 		.pm = &snd_cs5535audio_pm,
diff --git a/sound/pci/ctxfi/xfi.c b/sound/pci/ctxfi/xfi.c
index 07c07d7..f5a311c 100644
--- a/sound/pci/ctxfi/xfi.c
+++ b/sound/pci/ctxfi/xfi.c
@@ -152,7 +152,7 @@ static struct pci_driver ct_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = ct_pci_dev_ids,
 	.probe = ct_card_probe,
-	.remove = __devexit_p(ct_card_remove),
+	.remove = ct_card_remove,
 	.driver = {
 		.pm = CT_CARD_PM_OPS,
 	},
diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
index abb0b86..d9181bd 100644
--- a/sound/pci/echoaudio/echoaudio.c
+++ b/sound/pci/echoaudio/echoaudio.c
@@ -2337,7 +2337,7 @@ static struct pci_driver echo_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_echo_ids,
 	.probe = snd_echo_probe,
-	.remove = __devexit_p(snd_echo_remove),
+	.remove = snd_echo_remove,
 	.driver = {
 		.pm = SND_ECHO_PM_OPS,
 	},
diff --git a/sound/pci/emu10k1/emu10k1.c b/sound/pci/emu10k1/emu10k1.c
index b7c1875..6e3cbb3 100644
--- a/sound/pci/emu10k1/emu10k1.c
+++ b/sound/pci/emu10k1/emu10k1.c
@@ -274,7 +274,7 @@ static struct pci_driver emu10k1_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_emu10k1_ids,
 	.probe = snd_card_emu10k1_probe,
-	.remove = __devexit_p(snd_card_emu10k1_remove),
+	.remove = snd_card_emu10k1_remove,
 	.driver = {
 		.pm = SND_EMU10K1_PM_OPS,
 	},
diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c
index 556fd6f..f2c0620 100644
--- a/sound/pci/emu10k1/emu10k1x.c
+++ b/sound/pci/emu10k1/emu10k1x.c
@@ -1637,7 +1637,7 @@ static struct pci_driver emu10k1x_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_emu10k1x_ids,
 	.probe = snd_emu10k1x_probe,
-	.remove = __devexit_p(snd_emu10k1x_remove),
+	.remove = snd_emu10k1x_remove,
 };
 
 module_pci_driver(emu10k1x_driver);
diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c
index 5674cc3..f631705 100644
--- a/sound/pci/ens1370.c
+++ b/sound/pci/ens1370.c
@@ -2504,7 +2504,7 @@ static struct pci_driver ens137x_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_audiopci_ids,
 	.probe = snd_audiopci_probe,
-	.remove = __devexit_p(snd_audiopci_remove),
+	.remove = snd_audiopci_remove,
 	.driver = {
 		.pm = SND_ENSONIQ_PM_OPS,
 	},
diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c
index 394c5d4..83b889f 100644
--- a/sound/pci/es1938.c
+++ b/sound/pci/es1938.c
@@ -1888,7 +1888,7 @@ static struct pci_driver es1938_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_es1938_ids,
 	.probe = snd_es1938_probe,
-	.remove = __devexit_p(snd_es1938_remove),
+	.remove = snd_es1938_remove,
 	.driver = {
 		.pm = ES1938_PM_OPS,
 	},
diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c
index 7266020..90e29c5 100644
--- a/sound/pci/es1968.c
+++ b/sound/pci/es1968.c
@@ -2916,7 +2916,7 @@ static struct pci_driver es1968_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_es1968_ids,
 	.probe = snd_es1968_probe,
-	.remove = __devexit_p(snd_es1968_remove),
+	.remove = snd_es1968_remove,
 	.driver = {
 		.pm = ES1968_PM_OPS,
 	},
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index c5806f8..8ec35dd 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -1439,7 +1439,7 @@ static struct pci_driver fm801_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_fm801_ids,
 	.probe = snd_card_fm801_probe,
-	.remove = __devexit_p(snd_card_fm801_remove),
+	.remove = snd_card_fm801_remove,
 	.driver = {
 		.pm = SND_FM801_PM_OPS,
 	},
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 2cc07c1..bad2ba0 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -3729,7 +3729,7 @@ static struct pci_driver azx_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = azx_ids,
 	.probe = azx_probe,
-	.remove = __devexit_p(azx_remove),
+	.remove = azx_remove,
 	.driver = {
 		.pm = AZX_PM_OPS,
 	},
diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c
index dd64e22..80b3409 100644
--- a/sound/pci/ice1712/ice1712.c
+++ b/sound/pci/ice1712/ice1712.c
@@ -2812,7 +2812,7 @@ static struct pci_driver ice1712_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_ice1712_ids,
 	.probe = snd_ice1712_probe,
-	.remove = __devexit_p(snd_ice1712_remove),
+	.remove = snd_ice1712_remove,
 };
 
 module_pci_driver(ice1712_driver);
diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c
index ea99e56..cf872ae 100644
--- a/sound/pci/ice1712/ice1724.c
+++ b/sound/pci/ice1712/ice1724.c
@@ -2900,7 +2900,7 @@ static struct pci_driver vt1724_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_vt1724_ids,
 	.probe = snd_vt1724_probe,
-	.remove = __devexit_p(snd_vt1724_remove),
+	.remove = snd_vt1724_remove,
 	.driver = {
 		.pm = SND_VT1724_PM_OPS,
 	},
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index ea4b706..a3ab153 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -3369,7 +3369,7 @@ static struct pci_driver intel8x0_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_intel8x0_ids,
 	.probe = snd_intel8x0_probe,
-	.remove = __devexit_p(snd_intel8x0_remove),
+	.remove = snd_intel8x0_remove,
 	.driver = {
 		.pm = INTEL8X0_PM_OPS,
 	},
diff --git a/sound/pci/intel8x0m.c b/sound/pci/intel8x0m.c
index 4d55173..cb51181 100644
--- a/sound/pci/intel8x0m.c
+++ b/sound/pci/intel8x0m.c
@@ -1335,7 +1335,7 @@ static struct pci_driver intel8x0m_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_intel8x0m_ids,
 	.probe = snd_intel8x0m_probe,
-	.remove = __devexit_p(snd_intel8x0m_remove),
+	.remove = snd_intel8x0m_remove,
 	.driver = {
 		.pm = INTEL8X0M_PM_OPS,
 	},
diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c
index 8a67ce9..1deabc6 100644
--- a/sound/pci/korg1212/korg1212.c
+++ b/sound/pci/korg1212/korg1212.c
@@ -2480,7 +2480,7 @@ static struct pci_driver korg1212_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_korg1212_ids,
 	.probe = snd_korg1212_probe,
-	.remove = __devexit_p(snd_korg1212_remove),
+	.remove = snd_korg1212_remove,
 };
 
 module_pci_driver(korg1212_driver);
diff --git a/sound/pci/lola/lola.c b/sound/pci/lola/lola.c
index ac15166..a72cca9 100644
--- a/sound/pci/lola/lola.c
+++ b/sound/pci/lola/lola.c
@@ -774,7 +774,7 @@ static struct pci_driver lola_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = lola_ids,
 	.probe = lola_probe,
-	.remove = __devexit_p(lola_remove),
+	.remove = lola_remove,
 };
 
 module_pci_driver(lola_driver);
diff --git a/sound/pci/lx6464es/lx6464es.c b/sound/pci/lx6464es/lx6464es.c
index 5579b08..62b378c 100644
--- a/sound/pci/lx6464es/lx6464es.c
+++ b/sound/pci/lx6464es/lx6464es.c
@@ -1147,7 +1147,7 @@ static struct pci_driver lx6464es_driver = {
 	.name =     KBUILD_MODNAME,
 	.id_table = snd_lx6464es_ids,
 	.probe =    snd_lx6464es_probe,
-	.remove = __devexit_p(snd_lx6464es_remove),
+	.remove = snd_lx6464es_remove,
 };
 
 module_pci_driver(lx6464es_driver);
diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c
index eb3cd3a..8b76a52 100644
--- a/sound/pci/maestro3.c
+++ b/sound/pci/maestro3.c
@@ -2780,7 +2780,7 @@ static struct pci_driver m3_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_m3_ids,
 	.probe = snd_m3_probe,
-	.remove = __devexit_p(snd_m3_remove),
+	.remove = snd_m3_remove,
 	.driver = {
 		.pm = M3_PM_OPS,
 	},
diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c
index 0762610..c5becc9 100644
--- a/sound/pci/mixart/mixart.c
+++ b/sound/pci/mixart/mixart.c
@@ -1384,7 +1384,7 @@ static struct pci_driver mixart_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_mixart_ids,
 	.probe = snd_mixart_probe,
-	.remove = __devexit_p(snd_mixart_remove),
+	.remove = snd_mixart_remove,
 };
 
 module_pci_driver(mixart_driver);
diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c
index e80e9a1..77b1811 100644
--- a/sound/pci/nm256/nm256.c
+++ b/sound/pci/nm256/nm256.c
@@ -1753,7 +1753,7 @@ static struct pci_driver nm256_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_nm256_ids,
 	.probe = snd_nm256_probe,
-	.remove = __devexit_p(snd_nm256_remove),
+	.remove = snd_nm256_remove,
 	.driver = {
 		.pm = NM256_PM_OPS,
 	},
diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c
index 2becae1..d061c79 100644
--- a/sound/pci/oxygen/oxygen.c
+++ b/sound/pci/oxygen/oxygen.c
@@ -871,7 +871,7 @@ static struct pci_driver oxygen_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = oxygen_ids,
 	.probe = generic_oxygen_probe,
-	.remove = __devexit_p(oxygen_pci_remove),
+	.remove = oxygen_pci_remove,
 #ifdef CONFIG_PM_SLEEP
 	.driver = {
 		.pm = &oxygen_pci_pm,
diff --git a/sound/pci/oxygen/virtuoso.c b/sound/pci/oxygen/virtuoso.c
index 8104eab..ebae284 100644
--- a/sound/pci/oxygen/virtuoso.c
+++ b/sound/pci/oxygen/virtuoso.c
@@ -93,7 +93,7 @@ static struct pci_driver xonar_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = xonar_ids,
 	.probe = xonar_probe,
-	.remove = __devexit_p(oxygen_pci_remove),
+	.remove = oxygen_pci_remove,
 #ifdef CONFIG_PM_SLEEP
 	.driver = {
 		.pm = &oxygen_pci_pm,
diff --git a/sound/pci/pcxhr/pcxhr.c b/sound/pci/pcxhr/pcxhr.c
index be4f145..2007a33 100644
--- a/sound/pci/pcxhr/pcxhr.c
+++ b/sound/pci/pcxhr/pcxhr.c
@@ -1698,7 +1698,7 @@ static struct pci_driver pcxhr_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = pcxhr_ids,
 	.probe = pcxhr_probe,
-	.remove = __devexit_p(pcxhr_remove),
+	.remove = pcxhr_remove,
 };
 
 module_pci_driver(pcxhr_driver);
diff --git a/sound/pci/riptide/riptide.c b/sound/pci/riptide/riptide.c
index 7d29154..9638a5a 100644
--- a/sound/pci/riptide/riptide.c
+++ b/sound/pci/riptide/riptide.c
@@ -2186,7 +2186,7 @@ static struct pci_driver driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_riptide_ids,
 	.probe = snd_card_riptide_probe,
-	.remove = __devexit_p(snd_card_riptide_remove),
+	.remove = snd_card_riptide_remove,
 	.driver = {
 		.pm = RIPTIDE_PM_OPS,
 	},
@@ -2197,7 +2197,7 @@ static struct pci_driver joystick_driver = {
 	.name = KBUILD_MODNAME "-joystick",
 	.id_table = snd_riptide_joystick_ids,
 	.probe = snd_riptide_joystick_probe,
-	.remove = __devexit_p(snd_riptide_joystick_remove),
+	.remove = snd_riptide_joystick_remove,
 };
 #endif
 
diff --git a/sound/pci/rme32.c b/sound/pci/rme32.c
index 46b3629d..d7db4d3 100644
--- a/sound/pci/rme32.c
+++ b/sound/pci/rme32.c
@@ -1988,7 +1988,7 @@ static struct pci_driver rme32_driver = {
 	.name =		KBUILD_MODNAME,
 	.id_table =	snd_rme32_ids,
 	.probe =	snd_rme32_probe,
-	.remove =	__devexit_p(snd_rme32_remove),
+	.remove =	snd_rme32_remove,
 };
 
 module_pci_driver(rme32_driver);
diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c
index 9b98dc4..4486e75 100644
--- a/sound/pci/rme96.c
+++ b/sound/pci/rme96.c
@@ -2399,7 +2399,7 @@ static struct pci_driver rme96_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_rme96_ids,
 	.probe = snd_rme96_probe,
-	.remove = __devexit_p(snd_rme96_remove),
+	.remove = snd_rme96_remove,
 };
 
 module_pci_driver(rme96_driver);
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index 0d6930c..916aff1 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -5640,7 +5640,7 @@ static struct pci_driver hdsp_driver = {
 	.name =     KBUILD_MODNAME,
 	.id_table = snd_hdsp_ids,
 	.probe =    snd_hdsp_probe,
-	.remove = __devexit_p(snd_hdsp_remove),
+	.remove = snd_hdsp_remove,
 };
 
 module_pci_driver(hdsp_driver);
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 748e36c..2435cb5 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -6974,7 +6974,7 @@ static struct pci_driver hdspm_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_hdspm_ids,
 	.probe = snd_hdspm_probe,
-	.remove = __devexit_p(snd_hdspm_remove),
+	.remove = snd_hdspm_remove,
 };
 
 module_pci_driver(hdspm_driver);
diff --git a/sound/pci/rme9652/rme9652.c b/sound/pci/rme9652/rme9652.c
index a15fc10..125d745 100644
--- a/sound/pci/rme9652/rme9652.c
+++ b/sound/pci/rme9652/rme9652.c
@@ -2635,7 +2635,7 @@ static struct pci_driver rme9652_driver = {
 	.name	  = KBUILD_MODNAME,
 	.id_table = snd_rme9652_ids,
 	.probe	  = snd_rme9652_probe,
-	.remove	  = __devexit_p(snd_rme9652_remove),
+	.remove	  = snd_rme9652_remove,
 };
 
 module_pci_driver(rme9652_driver);
diff --git a/sound/pci/sis7019.c b/sound/pci/sis7019.c
index 51e4340..e1786ef 100644
--- a/sound/pci/sis7019.c
+++ b/sound/pci/sis7019.c
@@ -1488,7 +1488,7 @@ static struct pci_driver sis7019_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_sis7019_ids,
 	.probe = snd_sis7019_probe,
-	.remove = __devexit_p(snd_sis7019_remove),
+	.remove = snd_sis7019_remove,
 	.driver = {
 		.pm = SIS_PM_OPS,
 	},
diff --git a/sound/pci/sonicvibes.c b/sound/pci/sonicvibes.c
index baa9946..bc5ca1d2 100644
--- a/sound/pci/sonicvibes.c
+++ b/sound/pci/sonicvibes.c
@@ -1534,7 +1534,7 @@ static struct pci_driver sonicvibes_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_sonic_ids,
 	.probe = snd_sonic_probe,
-	.remove = __devexit_p(snd_sonic_remove),
+	.remove = snd_sonic_remove,
 };
 
 module_pci_driver(sonicvibes_driver);
diff --git a/sound/pci/trident/trident.c b/sound/pci/trident/trident.c
index 8a6f1f7..8cec678 100644
--- a/sound/pci/trident/trident.c
+++ b/sound/pci/trident/trident.c
@@ -176,7 +176,7 @@ static struct pci_driver trident_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_trident_ids,
 	.probe = snd_trident_probe,
-	.remove = __devexit_p(snd_trident_remove),
+	.remove = snd_trident_remove,
 #ifdef CONFIG_PM_SLEEP
 	.driver = {
 		.pm = &snd_trident_pm,
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index f0b4efd..5312cb2 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -2653,7 +2653,7 @@ static struct pci_driver via82xx_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_via82xx_ids,
 	.probe = snd_via82xx_probe,
-	.remove = __devexit_p(snd_via82xx_remove),
+	.remove = snd_via82xx_remove,
 	.driver = {
 		.pm = SND_VIA82XX_PM_OPS,
 	},
diff --git a/sound/pci/via82xx_modem.c b/sound/pci/via82xx_modem.c
index 8e0efc4..fa2ecc2 100644
--- a/sound/pci/via82xx_modem.c
+++ b/sound/pci/via82xx_modem.c
@@ -1234,7 +1234,7 @@ static struct pci_driver via82xx_modem_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_via82xx_modem_ids,
 	.probe = snd_via82xx_probe,
-	.remove = __devexit_p(snd_via82xx_remove),
+	.remove = snd_via82xx_remove,
 	.driver = {
 		.pm = SND_VIA82XX_PM_OPS,
 	},
diff --git a/sound/pci/vx222/vx222.c b/sound/pci/vx222/vx222.c
index fdfbaf8..22d3f92 100644
--- a/sound/pci/vx222/vx222.c
+++ b/sound/pci/vx222/vx222.c
@@ -300,7 +300,7 @@ static struct pci_driver vx222_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_vx222_ids,
 	.probe = snd_vx222_probe,
-	.remove = __devexit_p(snd_vx222_remove),
+	.remove = snd_vx222_remove,
 	.driver = {
 		.pm = SND_VX222_PM_OPS,
 	},
diff --git a/sound/pci/ymfpci/ymfpci.c b/sound/pci/ymfpci/ymfpci.c
index e01fe34..d5ccc2d 100644
--- a/sound/pci/ymfpci/ymfpci.c
+++ b/sound/pci/ymfpci/ymfpci.c
@@ -354,7 +354,7 @@ static struct pci_driver ymfpci_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_ymfpci_ids,
 	.probe = snd_card_ymfpci_probe,
-	.remove = __devexit_p(snd_card_ymfpci_remove),
+	.remove = snd_card_ymfpci_remove,
 #ifdef CONFIG_PM_SLEEP
 	.driver = {
 		.pm = &snd_ymfpci_pm,
diff --git a/sound/ppc/powermac.c b/sound/ppc/powermac.c
index 210cafe..ce6db15 100644
--- a/sound/ppc/powermac.c
+++ b/sound/ppc/powermac.c
@@ -168,7 +168,7 @@ static SIMPLE_DEV_PM_OPS(snd_pmac_pm, snd_pmac_driver_suspend, snd_pmac_driver_r
 
 static struct platform_driver snd_pmac_driver = {
 	.probe		= snd_pmac_probe,
-	.remove		= __devexit_p(snd_pmac_remove),
+	.remove		= snd_pmac_remove,
 	.driver		= {
 		.name	= SND_PMAC_DRIVER,
 		.owner	= THIS_MODULE,
diff --git a/sound/sh/aica.c b/sound/sh/aica.c
index d48b523..2b776ee 100644
--- a/sound/sh/aica.c
+++ b/sound/sh/aica.c
@@ -652,7 +652,7 @@ static int __devinit snd_aica_probe(struct platform_device *devptr)
 
 static struct platform_driver snd_aica_driver = {
 	.probe = snd_aica_probe,
-	.remove = __devexit_p(snd_aica_remove),
+	.remove = snd_aica_remove,
 	.driver = {
 		.name = SND_AICA_DRIVER,
 		.owner	= THIS_MODULE,
diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index f2eabd3..344eb3f 100644
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -2115,7 +2115,7 @@ static struct platform_driver cs4231_driver = {
 		.of_match_table = cs4231_match,
 	},
 	.probe		= cs4231_probe,
-	.remove		= __devexit_p(cs4231_remove),
+	.remove		= cs4231_remove,
 };
 
 module_platform_driver(cs4231_driver);
diff --git a/sound/sparc/dbri.c b/sound/sparc/dbri.c
index ae35f53..55c80c4 100644
--- a/sound/sparc/dbri.c
+++ b/sound/sparc/dbri.c
@@ -2694,7 +2694,7 @@ static struct platform_driver dbri_sbus_driver = {
 		.of_match_table = dbri_match,
 	},
 	.probe		= dbri_probe,
-	.remove		= __devexit_p(dbri_remove),
+	.remove		= dbri_remove,
 };
 
 module_platform_driver(dbri_sbus_driver);
diff --git a/sound/spi/at73c213.c b/sound/spi/at73c213.c
index c6500d0..a887ef7 100644
--- a/sound/spi/at73c213.c
+++ b/sound/spi/at73c213.c
@@ -1109,7 +1109,7 @@ static struct spi_driver at73c213_driver = {
 	.probe		= snd_at73c213_probe,
 	.suspend	= snd_at73c213_suspend,
 	.resume		= snd_at73c213_resume,
-	.remove		= __devexit_p(snd_at73c213_remove),
+	.remove		= snd_at73c213_remove,
 };
 
 module_spi_driver(at73c213_driver);
-- 
1.8.0

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Subject: [PATCH 343/493] parisc: remove use of __devinitdata
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CONFIG_HOTPLUG is going away as an option so __devinitdata is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> 
Cc: Helge Deller <deller@gmx.de> 
Cc: linux-parisc@vger.kernel.org 
---
 arch/parisc/kernel/hardware.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index 80e4135..f7752f6 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -38,7 +38,7 @@
  *	so don't reference this table after starting the init process
  */
  
-static struct hp_hardware hp_hardware_list[] __devinitdata = {
+static struct hp_hardware hp_hardware_list[] = {
 	{HPHW_NPROC,0x01,0x4,0x0,"Indigo (840, 930)"},
 	{HPHW_NPROC,0x8,0x4,0x01,"Firefox(825,925)"},
 	{HPHW_NPROC,0xA,0x4,0x01,"Top Gun (835,834,935,635)"},
@@ -1230,7 +1230,7 @@ static struct hp_cpu_type_mask {
 	unsigned short model;
 	unsigned short mask;
 	enum cpu_type cpu;
-} hp_cpu_type_mask_list[] __devinitdata = {
+} hp_cpu_type_mask_list[] = {
 
 	{ 0x0000, 0x0ff0, pcx    },  /* 0x0000 - 0x000f */
 	{ 0x0048, 0x0ff0, pcxl   },  /* 0x0040 - 0x004f */
-- 
1.8.0

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From: Bill Pemberton <wfp5p@virginia.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 240/493] parisc: remove use of __devinit
Date: Mon, 19 Nov 2012 13:23:09 -0500
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CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> 
Cc: Helge Deller <deller@gmx.de> 
Cc: linux-parisc@vger.kernel.org 
---
 arch/parisc/include/asm/parport.h | 2 +-
 arch/parisc/kernel/hardware.c     | 3 +--
 drivers/parisc/dino.c             | 2 +-
 drivers/parisc/lba_pci.c          | 2 +-
 4 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/include/asm/parport.h b/arch/parisc/include/asm/parport.h
index 00d9cc3..c391d7c 100644
--- a/arch/parisc/include/asm/parport.h
+++ b/arch/parisc/include/asm/parport.h
@@ -8,7 +8,7 @@
 #define _ASM_PARPORT_H 1
 
 
-static int __devinit parport_pc_find_nonpci_ports (int autoirq, int autodma)
+static int parport_pc_find_nonpci_ports (int autoirq, int autodma)
 {
 	/* nothing ! */
 	return 0;
diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index f48a640..80e4135 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -1327,8 +1327,7 @@ const char * const cpu_name_version[][2] = {
 	[mako2] = { "PA8900 (Shortfin)",	"2.0" }
 };
 
-const char * __devinit
-parisc_hardware_description(struct parisc_device_id *id)
+const char *parisc_hardware_description(struct parisc_device_id *id)
 {
 	struct hp_hardware *listptr;
 	
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index fb6a1fe..8e4e86b 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -430,7 +430,7 @@ static void dino_choose_irq(struct parisc_device *dev, void *ctrl)
  * Cirrus 6832 Cardbus reports wrong irq on RDI Tadpole PARISC Laptop (deller@gmx.de)
  * (the irqs are off-by-one, not sure yet if this is a cirrus, dino-hardware or dino-driver problem...)
  */
-static void __devinit quirk_cirrus_cardbus(struct pci_dev *dev)
+static void quirk_cirrus_cardbus(struct pci_dev *dev)
 {
 	u8 new_irq = dev->irq - 1;
 	printk(KERN_INFO "PCI: Cirrus Cardbus IRQ fixup for %s, from %d to %d\n",
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index fdd63a6..753c548 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -34,7 +34,7 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/spinlock.h>
-#include <linux/init.h>		/* for __init and __devinit */
+#include <linux/init.h>		/* for __init and */
 #include <linux/pci.h>
 #include <linux/ioport.h>
 #include <linux/slab.h>
-- 
1.8.0

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From - Thu Nov 08 21:08:44 2018
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X-Mozilla-Keys:                                                                                 
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From: Bill Pemberton <wfp5p@virginia.edu>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.alsa.devel,gmane.linux.kernel.samsung-soc,gmane.linux.ports.arm.omap,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.hardware.blackfin.kernel.devel
Subject: [PATCH 261/493] sound: remove use of __devinit
Date: Mon, 19 Nov 2012 13:23:30 -0500
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Cc: alsa-devel@alsa-project.org, device-drivers-devel@blackfin.uclinux.org,
 Takashi Iwai <tiwai@suse.de>, Clemens Ladisch <clemens@ladisch.de>,
 Jaroslav Kysela <perex@perex.cz>, Peter Ujfalusi <peter.ujfalusi@ti.com>,
 M R Swami Reddy <mr.swami.reddy@ti.com>,
 Philipp Zabel <philipp.zabel@gmail.com>, Kukjin Kim <kgene.kim@samsung.com>,
 Russell King <linux@arm.linux.org.uk>, patches@opensource.wolfsonmicro.com,
 Vishwas A Deshpande <vishwas.a.deshpande@ti.com>,
 Paul Parsons <lost.distance@yahoo.com>, cbe-oss-dev@lists.ozlabs.org,
 Thibaut Varene <T-Bone@parisc-linux.org>,
 Haojian Zhuang <haojian.zhuang@gmail.com>, linux-samsung-soc@vger.kernel.org,
 Ben Dooks <ben-linux@fluff.org>, linux-omap@vger.kernel.org,
 linux-arm-kernel@lists.infradead.org, Jaya Kumar <jayakumar.alsa@gmail.com>,
 Eric Miao <eric.y.miao@gmail.com>, linux-parisc@vger.kernel.org,
 Geoff Levand <geoff@infradead.or
To: gregkh@linuxfoundation.org
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CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Russell King <linux@arm.linux.org.uk> 
Cc: Jaroslav Kysela <perex@perex.cz> 
Cc: Takashi Iwai <tiwai@suse.de> 
Cc: Eric Miao <eric.y.miao@gmail.com> 
Cc: Haojian Zhuang <haojian.zhuang@gmail.com> 
Cc: Clemens Ladisch <clemens@ladisch.de> 
Cc: Thibaut Varene <T-Bone@parisc-linux.org> 
Cc: Jaya Kumar <jayakumar.alsa@gmail.com> 
Cc: Geoff Levand <geoff@infradead.org> 
Cc: M R Swami Reddy <mr.swami.reddy@ti.com> 
Cc: Vishwas A Deshpande <vishwas.a.deshpande@ti.com> 
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> 
Cc: Jarkko Nikula <jarkko.nikula@bitmer.com> 
Cc: Philipp Zabel <philipp.zabel@gmail.com> 
Cc: Paul Parsons <lost.distance@yahoo.com> 
Cc: Ben Dooks <ben-linux@fluff.org> 
Cc: Kukjin Kim <kgene.kim@samsung.com> 
Cc: alsa-devel@alsa-project.org 
Cc: linux-arm-kernel@lists.infradead.org 
Cc: linux-parisc@vger.kernel.org 
Cc: linuxppc-dev@lists.ozlabs.org 
Cc: cbe-oss-dev@lists.ozlabs.org 
Cc: uclinux-dist-devel@blackfin.uclinux.org 
Cc: device-drivers-devel@blackfin.uclinux.org 
Cc: patches@opensource.wolfsonmicro.com 
Cc: linux-omap@vger.kernel.org 
Cc: linux-samsung-soc@vger.kernel.org 
---
 sound/arm/aaci.c                               | 10 +++----
 sound/arm/pxa2xx-ac97-lib.c                    |  2 +-
 sound/arm/pxa2xx-ac97.c                        |  2 +-
 sound/atmel/abdac.c                            |  4 +--
 sound/atmel/ac97c.c                            |  4 +--
 sound/drivers/aloop.c                          |  8 +++---
 sound/drivers/dummy.c                          |  8 +++---
 sound/drivers/ml403-ac97cr.c                   | 14 ++++------
 sound/drivers/mpu401/mpu401.c                  |  6 ++---
 sound/drivers/mtpav.c                          |  8 +++---
 sound/drivers/mts64.c                          | 16 ++++++------
 sound/drivers/pcsp/pcsp.c                      |  8 +++---
 sound/drivers/pcsp/pcsp_input.c                |  2 +-
 sound/drivers/pcsp/pcsp_input.h                |  2 +-
 sound/drivers/pcsp/pcsp_lib.c                  |  2 +-
 sound/drivers/pcsp/pcsp_mixer.c                |  4 +--
 sound/drivers/portman2x4.c                     | 10 +++----
 sound/drivers/serial-u16550.c                  | 10 +++----
 sound/drivers/virmidi.c                        |  2 +-
 sound/firewire/speakers.c                      |  4 +--
 sound/isa/ad1816a/ad1816a.c                    |  6 ++---
 sound/isa/ad1816a/ad1816a_lib.c                | 12 ++++-----
 sound/isa/ad1848/ad1848.c                      |  4 +--
 sound/isa/adlib.c                              |  4 +--
 sound/isa/als100.c                             |  6 ++---
 sound/isa/azt2320.c                            | 10 +++----
 sound/isa/cmi8328.c                            |  4 +--
 sound/isa/cmi8330.c                            | 16 ++++++------
 sound/isa/cs423x/cs4231.c                      |  4 +--
 sound/isa/cs423x/cs4236.c                      | 20 +++++++-------
 sound/isa/es1688/es1688.c                      | 12 ++++-----
 sound/isa/es18xx.c                             | 36 +++++++++++++-------------
 sound/isa/galaxy/galaxy.c                      | 22 ++++++++--------
 sound/isa/gus/gusclassic.c                     |  8 +++---
 sound/isa/gus/gusextreme.c                     | 12 ++++-----
 sound/isa/gus/gusmax.c                         | 10 +++----
 sound/isa/gus/interwave.c                      | 26 +++++++++----------
 sound/isa/msnd/msnd.h                          |  2 +-
 sound/isa/msnd/msnd_pinnacle.c                 | 30 ++++++++++-----------
 sound/isa/msnd/msnd_pinnacle_mixer.c           |  2 +-
 sound/isa/opl3sa2.c                            | 16 ++++++------
 sound/isa/opti9xx/miro.c                       | 26 +++++++++----------
 sound/isa/opti9xx/opti92x-ad1848.c             | 18 ++++++-------
 sound/isa/sb/emu8000.c                         | 33 ++++++++---------------
 sound/isa/sb/jazz16.c                          | 10 +++----
 sound/isa/sb/sb16.c                            | 12 ++++-----
 sound/isa/sb/sb8.c                             |  4 +--
 sound/isa/sc6000.c                             | 24 ++++++++---------
 sound/isa/sscape.c                             | 18 ++++++-------
 sound/isa/wavefront/wavefront.c                | 21 ++++++---------
 sound/isa/wavefront/wavefront_fx.c             |  3 +--
 sound/isa/wavefront/wavefront_midi.c           |  3 +--
 sound/isa/wavefront/wavefront_synth.c          | 21 +++++----------
 sound/mips/au1x00.c                            |  6 ++---
 sound/mips/hal2.c                              |  6 ++---
 sound/mips/sgio2audio.c                        |  8 +++---
 sound/oss/kahlua.c                             |  4 +--
 sound/oss/swarm_cs4297a.c                      |  2 +-
 sound/parisc/harmony.c                         | 12 +++------
 sound/pci/ad1889.c                             | 21 +++++----------
 sound/pci/ak4531_codec.c                       |  5 ++--
 sound/pci/ali5451/ali5451.c                    | 14 +++++-----
 sound/pci/als300.c                             |  6 ++---
 sound/pci/als4000.c                            |  6 ++---
 sound/pci/asihpi/asihpi.c                      | 28 ++++++++++----------
 sound/pci/asihpi/hpioctl.c                     |  2 +-
 sound/pci/asihpi/hpioctl.h                     |  2 +-
 sound/pci/atiixp.c                             | 14 +++++-----
 sound/pci/atiixp_modem.c                       | 10 +++----
 sound/pci/au88x0/au88x0.c                      |  8 +++---
 sound/pci/au88x0/au88x0_a3d.c                  |  4 +--
 sound/pci/au88x0/au88x0_core.c                 |  2 +-
 sound/pci/au88x0/au88x0_eq.c                   |  2 +-
 sound/pci/au88x0/au88x0_game.c                 |  2 +-
 sound/pci/au88x0/au88x0_mixer.c                |  2 +-
 sound/pci/au88x0/au88x0_mpu401.c               |  2 +-
 sound/pci/au88x0/au88x0_pcm.c                  |  2 +-
 sound/pci/aw2/aw2-alsa.c                       | 12 ++++-----
 sound/pci/azt3328.c                            | 21 +++++----------
 sound/pci/bt87x.c                              |  8 +++---
 sound/pci/ca0106/ca0106_main.c                 |  8 +++---
 sound/pci/ca0106/ca0106_mixer.c                | 13 +++++-----
 sound/pci/ca0106/ca0106_proc.c                 |  2 +-
 sound/pci/ca0106/ca_midi.c                     |  2 +-
 sound/pci/cmipci.c                             | 20 +++++++-------
 sound/pci/cs4281.c                             | 14 +++++-----
 sound/pci/cs46xx/cs46xx.c                      |  2 +-
 sound/pci/cs46xx/cs46xx_lib.c                  | 24 ++++++++---------
 sound/pci/cs5530.c                             |  6 ++---
 sound/pci/cs5535audio/cs5535audio.c            |  6 ++---
 sound/pci/cs5535audio/cs5535audio.h            |  6 ++---
 sound/pci/cs5535audio/cs5535audio_olpc.c       |  4 +--
 sound/pci/cs5535audio/cs5535audio_pcm.c        |  2 +-
 sound/pci/ctxfi/ctatc.c                        |  8 +++---
 sound/pci/ctxfi/ctatc.h                        |  4 +--
 sound/pci/ctxfi/cthardware.c                   |  2 +-
 sound/pci/ctxfi/cthw20k1.c                     |  2 +-
 sound/pci/ctxfi/cthw20k2.c                     |  2 +-
 sound/pci/ctxfi/xfi.c                          |  3 +--
 sound/pci/echoaudio/echoaudio.c                |  6 ++---
 sound/pci/echoaudio/echoaudio.h                |  2 +-
 sound/pci/echoaudio/midi.c                     |  2 +-
 sound/pci/emu10k1/emu10k1.c                    |  2 +-
 sound/pci/emu10k1/emu10k1_main.c               |  4 +--
 sound/pci/emu10k1/emu10k1x.c                   | 14 +++++-----
 sound/pci/emu10k1/emufx.c                      | 28 +++++++++-----------
 sound/pci/emu10k1/emumixer.c                   |  2 +-
 sound/pci/emu10k1/emumpu401.c                  |  6 ++---
 sound/pci/emu10k1/emupcm.c                     |  8 +++---
 sound/pci/emu10k1/emuproc.c                    |  2 +-
 sound/pci/emu10k1/p16v.c                       |  6 ++---
 sound/pci/emu10k1/timer.c                      |  2 +-
 sound/pci/ens1370.c                            | 20 +++++++-------
 sound/pci/es1938.c                             | 10 +++----
 sound/pci/es1968.c                             | 19 ++++++--------
 sound/pci/fm801.c                              |  8 +++---
 sound/pci/hda/hda_intel.c                      | 30 ++++++++++-----------
 sound/pci/ice1712/amp.c                        |  4 +--
 sound/pci/ice1712/aureon.c                     |  4 +--
 sound/pci/ice1712/delta.c                      |  4 +--
 sound/pci/ice1712/ews.c                        |  4 +--
 sound/pci/ice1712/hoontech.c                   | 20 +++++++-------
 sound/pci/ice1712/ice1712.c                    | 28 ++++++++++----------
 sound/pci/ice1712/ice1724.c                    | 20 +++++++-------
 sound/pci/ice1712/juli.c                       |  8 +++---
 sound/pci/ice1712/maya44.c                     |  6 ++---
 sound/pci/ice1712/phase.c                      |  8 +++---
 sound/pci/ice1712/pontis.c                     |  4 +--
 sound/pci/ice1712/prodigy192.c                 |  4 +--
 sound/pci/ice1712/prodigy_hifi.c               |  8 +++---
 sound/pci/ice1712/psc724.c                     |  4 +--
 sound/pci/ice1712/quartet.c                    |  8 +++---
 sound/pci/ice1712/revo.c                       |  6 ++---
 sound/pci/ice1712/se.c                         | 12 ++++-----
 sound/pci/ice1712/vt1720_mobo.c                |  4 +--
 sound/pci/ice1712/wtm.c                        |  4 +--
 sound/pci/intel8x0.c                           | 22 ++++++++--------
 sound/pci/intel8x0m.c                          | 12 ++++-----
 sound/pci/korg1212/korg1212.c                  |  7 +++--
 sound/pci/lola/lola.c                          |  6 ++---
 sound/pci/lola/lola_clock.c                    |  2 +-
 sound/pci/lola/lola_mixer.c                    | 16 ++++++------
 sound/pci/lola/lola_pcm.c                      |  4 +--
 sound/pci/lola/lola_proc.c                     |  2 +-
 sound/pci/lx6464es/lx6464es.c                  | 18 ++++++-------
 sound/pci/lx6464es/lx_core.c                   |  2 +-
 sound/pci/lx6464es/lx_core.h                   |  2 +-
 sound/pci/maestro3.c                           | 15 +++++------
 sound/pci/mixart/mixart.c                      |  6 ++---
 sound/pci/nm256/nm256.c                        | 14 ++++------
 sound/pci/oxygen/oxygen.c                      |  4 +--
 sound/pci/oxygen/virtuoso.c                    |  4 +--
 sound/pci/oxygen/xonar_cs43xx.c                |  2 +-
 sound/pci/oxygen/xonar_pcm179x.c               |  2 +-
 sound/pci/oxygen/xonar_wm87x6.c                |  2 +-
 sound/pci/pcxhr/pcxhr.c                        |  6 ++---
 sound/pci/riptide/riptide.c                    | 16 +++++-------
 sound/pci/rme32.c                              |  7 +++--
 sound/pci/rme96.c                              | 10 +++----
 sound/pci/rme9652/hdsp.c                       |  6 ++---
 sound/pci/rme9652/hdspm.c                      | 20 +++++++-------
 sound/pci/rme9652/rme9652.c                    | 10 +++----
 sound/pci/sis7019.c                            |  8 +++---
 sound/pci/sonicvibes.c                         | 14 +++++-----
 sound/pci/trident/trident.c                    |  2 +-
 sound/pci/trident/trident_main.c               | 18 ++++++-------
 sound/pci/via82xx.c                            | 22 ++++++++--------
 sound/pci/via82xx_modem.c                      | 10 +++----
 sound/pci/vx222/vx222.c                        |  4 +--
 sound/pci/ymfpci/ymfpci.c                      |  4 +--
 sound/pci/ymfpci/ymfpci_main.c                 | 20 +++++++-------
 sound/ppc/awacs.c                              |  3 +--
 sound/ppc/beep.c                               |  2 +-
 sound/ppc/burgundy.c                           |  2 +-
 sound/ppc/daca.c                               |  2 +-
 sound/ppc/keywest.c                            |  4 +--
 sound/ppc/pmac.c                               | 10 +++----
 sound/ppc/powermac.c                           |  2 +-
 sound/ppc/snd_ps3.c                            | 12 ++++-----
 sound/ppc/tumbler.c                            |  4 +--
 sound/sh/aica.c                                |  4 +--
 sound/sh/sh_dac_audio.c                        |  6 ++---
 sound/soc/atmel/atmel-pcm.c                    |  2 +-
 sound/soc/atmel/atmel_ssc_dai.c                |  2 +-
 sound/soc/atmel/sam9g20_wm8731.c               |  2 +-
 sound/soc/au1x/ac97c.c                         |  2 +-
 sound/soc/au1x/db1000.c                        |  2 +-
 sound/soc/au1x/db1200.c                        |  2 +-
 sound/soc/au1x/dbdma2.c                        |  2 +-
 sound/soc/au1x/dma.c                           |  2 +-
 sound/soc/au1x/i2sc.c                          |  2 +-
 sound/soc/au1x/psc-ac97.c                      |  2 +-
 sound/soc/au1x/psc-i2s.c                       |  2 +-
 sound/soc/blackfin/bf5xx-ac97-pcm.c            |  2 +-
 sound/soc/blackfin/bf5xx-ac97.c                |  2 +-
 sound/soc/blackfin/bf5xx-ad1836.c              |  2 +-
 sound/soc/blackfin/bf5xx-i2s-pcm.c             |  2 +-
 sound/soc/blackfin/bf5xx-i2s.c                 |  2 +-
 sound/soc/blackfin/bf5xx-tdm-pcm.c             |  2 +-
 sound/soc/blackfin/bf5xx-tdm.c                 |  2 +-
 sound/soc/blackfin/bf6xx-i2s.c                 |  2 +-
 sound/soc/cirrus/edb93xx.c                     |  2 +-
 sound/soc/cirrus/ep93xx-ac97.c                 |  2 +-
 sound/soc/cirrus/ep93xx-pcm.c                  |  2 +-
 sound/soc/cirrus/simone.c                      |  2 +-
 sound/soc/cirrus/snappercl15.c                 |  2 +-
 sound/soc/codecs/88pm860x-codec.c              |  2 +-
 sound/soc/codecs/ab8500-codec.c                |  2 +-
 sound/soc/codecs/ac97.c                        |  2 +-
 sound/soc/codecs/ad1836.c                      |  2 +-
 sound/soc/codecs/ad193x.c                      |  4 +--
 sound/soc/codecs/ad1980.c                      |  2 +-
 sound/soc/codecs/adau1373.c                    |  2 +-
 sound/soc/codecs/adau1701.c                    |  2 +-
 sound/soc/codecs/adav80x.c                     |  6 ++---
 sound/soc/codecs/ads117x.c                     |  2 +-
 sound/soc/codecs/ak4535.c                      |  2 +-
 sound/soc/codecs/ak4641.c                      |  2 +-
 sound/soc/codecs/ak4642.c                      |  2 +-
 sound/soc/codecs/ak4671.c                      |  2 +-
 sound/soc/codecs/alc5623.c                     |  2 +-
 sound/soc/codecs/alc5632.c                     |  2 +-
 sound/soc/codecs/cs4271.c                      |  4 +--
 sound/soc/codecs/cs42l73.c                     |  2 +-
 sound/soc/codecs/da7210.c                      |  4 +--
 sound/soc/codecs/da732x.c                      |  2 +-
 sound/soc/codecs/da9055.c                      |  2 +-
 sound/soc/codecs/dfbmcs320.c                   |  2 +-
 sound/soc/codecs/dmic.c                        |  2 +-
 sound/soc/codecs/isabelle.c                    |  2 +-
 sound/soc/codecs/jz4740.c                      |  2 +-
 sound/soc/codecs/lm4857.c                      |  2 +-
 sound/soc/codecs/lm49453.c                     |  2 +-
 sound/soc/codecs/max9768.c                     |  2 +-
 sound/soc/codecs/max9850.c                     |  2 +-
 sound/soc/codecs/max9877.c                     |  2 +-
 sound/soc/codecs/ml26124.c                     |  2 +-
 sound/soc/codecs/omap-hdmi.c                   |  2 +-
 sound/soc/codecs/pcm3008.c                     |  2 +-
 sound/soc/codecs/sgtl5000.c                    |  2 +-
 sound/soc/codecs/si476x.c                      |  2 +-
 sound/soc/codecs/sn95031.c                     |  2 +-
 sound/soc/codecs/ssm2602.c                     |  4 +--
 sound/soc/codecs/sta32x.c                      |  2 +-
 sound/soc/codecs/sta529.c                      |  2 +-
 sound/soc/codecs/stac9766.c                    |  2 +-
 sound/soc/codecs/tlv320aic32x4.c               |  2 +-
 sound/soc/codecs/tlv320dac33.c                 |  2 +-
 sound/soc/codecs/tpa6130a2.c                   |  2 +-
 sound/soc/codecs/twl4030.c                     |  2 +-
 sound/soc/codecs/twl6040.c                     |  2 +-
 sound/soc/codecs/uda134x.c                     |  2 +-
 sound/soc/codecs/uda1380.c                     |  2 +-
 sound/soc/codecs/wl1273.c                      |  2 +-
 sound/soc/codecs/wm0010.c                      |  2 +-
 sound/soc/codecs/wm1250-ev1.c                  |  4 +--
 sound/soc/codecs/wm2000.c                      |  2 +-
 sound/soc/codecs/wm2200.c                      |  2 +-
 sound/soc/codecs/wm5100.c                      |  2 +-
 sound/soc/codecs/wm5102.c                      |  2 +-
 sound/soc/codecs/wm5110.c                      |  2 +-
 sound/soc/codecs/wm8350.c                      |  2 +-
 sound/soc/codecs/wm8400.c                      |  2 +-
 sound/soc/codecs/wm8510.c                      |  4 +--
 sound/soc/codecs/wm8523.c                      |  2 +-
 sound/soc/codecs/wm8711.c                      |  4 +--
 sound/soc/codecs/wm8727.c                      |  2 +-
 sound/soc/codecs/wm8728.c                      |  4 +--
 sound/soc/codecs/wm8731.c                      |  4 +--
 sound/soc/codecs/wm8737.c                      |  4 +--
 sound/soc/codecs/wm8741.c                      |  2 +-
 sound/soc/codecs/wm8750.c                      |  4 +--
 sound/soc/codecs/wm8753.c                      |  4 +--
 sound/soc/codecs/wm8770.c                      |  2 +-
 sound/soc/codecs/wm8776.c                      |  4 +--
 sound/soc/codecs/wm8782.c                      |  2 +-
 sound/soc/codecs/wm8804.c                      |  4 +--
 sound/soc/codecs/wm8900.c                      |  4 +--
 sound/soc/codecs/wm8903.c                      |  2 +-
 sound/soc/codecs/wm8904.c                      |  2 +-
 sound/soc/codecs/wm8940.c                      |  2 +-
 sound/soc/codecs/wm8955.c                      |  2 +-
 sound/soc/codecs/wm8960.c                      |  2 +-
 sound/soc/codecs/wm8961.c                      |  2 +-
 sound/soc/codecs/wm8962.c                      |  2 +-
 sound/soc/codecs/wm8971.c                      |  2 +-
 sound/soc/codecs/wm8974.c                      |  2 +-
 sound/soc/codecs/wm8978.c                      |  2 +-
 sound/soc/codecs/wm8983.c                      |  4 +--
 sound/soc/codecs/wm8985.c                      |  4 +--
 sound/soc/codecs/wm8988.c                      |  4 +--
 sound/soc/codecs/wm8990.c                      |  2 +-
 sound/soc/codecs/wm8991.c                      |  2 +-
 sound/soc/codecs/wm8993.c                      |  2 +-
 sound/soc/codecs/wm8994.c                      |  2 +-
 sound/soc/codecs/wm8995.c                      |  4 +--
 sound/soc/codecs/wm8996.c                      |  2 +-
 sound/soc/codecs/wm9081.c                      |  2 +-
 sound/soc/codecs/wm9705.c                      |  2 +-
 sound/soc/codecs/wm9712.c                      |  2 +-
 sound/soc/codecs/wm9713.c                      |  2 +-
 sound/soc/fsl/eukrea-tlv320.c                  |  2 +-
 sound/soc/fsl/fsl_dma.c                        |  2 +-
 sound/soc/fsl/fsl_ssi.c                        |  2 +-
 sound/soc/fsl/imx-audmux.c                     |  2 +-
 sound/soc/fsl/imx-mc13783.c                    |  2 +-
 sound/soc/fsl/imx-pcm-dma.c                    |  2 +-
 sound/soc/fsl/imx-pcm-fiq.c                    |  2 +-
 sound/soc/fsl/imx-sgtl5000.c                   |  2 +-
 sound/soc/fsl/mpc5200_psc_ac97.c               |  2 +-
 sound/soc/fsl/mpc5200_psc_i2s.c                |  2 +-
 sound/soc/fsl/mx27vis-aic32x4.c                |  2 +-
 sound/soc/jz4740/jz4740-i2s.c                  |  2 +-
 sound/soc/jz4740/jz4740-pcm.c                  |  2 +-
 sound/soc/jz4740/qi_lb60.c                     |  2 +-
 sound/soc/kirkwood/kirkwood-dma.c              |  2 +-
 sound/soc/kirkwood/kirkwood-i2s.c              |  2 +-
 sound/soc/kirkwood/kirkwood-openrd.c           |  2 +-
 sound/soc/kirkwood/kirkwood-t5325.c            |  2 +-
 sound/soc/mid-x86/mfld_machine.c               |  2 +-
 sound/soc/mxs/mxs-pcm.c                        |  2 +-
 sound/soc/mxs/mxs-saif.c                       |  2 +-
 sound/soc/mxs/mxs-sgtl5000.c                   |  4 +--
 sound/soc/nuc900/nuc900-ac97.c                 |  2 +-
 sound/soc/nuc900/nuc900-pcm.c                  |  2 +-
 sound/soc/omap/ams-delta.c                     |  2 +-
 sound/soc/omap/mcbsp.c                         |  4 +--
 sound/soc/omap/mcbsp.h                         |  2 +-
 sound/soc/omap/omap-abe-twl6040.c              |  2 +-
 sound/soc/omap/omap-dmic.c                     |  2 +-
 sound/soc/omap/omap-hdmi-card.c                |  2 +-
 sound/soc/omap/omap-hdmi.c                     |  2 +-
 sound/soc/omap/omap-mcbsp.c                    |  2 +-
 sound/soc/omap/omap-mcpdm.c                    |  2 +-
 sound/soc/omap/omap-pcm.c                      |  2 +-
 sound/soc/omap/omap-twl4030.c                  |  2 +-
 sound/soc/pxa/brownstone.c                     |  2 +-
 sound/soc/pxa/corgi.c                          |  2 +-
 sound/soc/pxa/e740_wm9705.c                    |  2 +-
 sound/soc/pxa/e750_wm9705.c                    |  2 +-
 sound/soc/pxa/e800_wm9712.c                    |  2 +-
 sound/soc/pxa/hx4700.c                         |  2 +-
 sound/soc/pxa/imote2.c                         |  2 +-
 sound/soc/pxa/mioa701_wm9713.c                 |  2 +-
 sound/soc/pxa/mmp-pcm.c                        |  2 +-
 sound/soc/pxa/mmp-sspa.c                       |  2 +-
 sound/soc/pxa/poodle.c                         |  2 +-
 sound/soc/pxa/pxa-ssp.c                        |  2 +-
 sound/soc/pxa/pxa2xx-ac97.c                    |  4 +--
 sound/soc/pxa/pxa2xx-pcm.c                     |  2 +-
 sound/soc/pxa/tosa.c                           |  2 +-
 sound/soc/pxa/ttc-dkb.c                        |  2 +-
 sound/soc/s6000/s6000-i2s.c                    |  2 +-
 sound/soc/s6000/s6000-pcm.c                    |  2 +-
 sound/soc/samsung/ac97.c                       |  2 +-
 sound/soc/samsung/bells.c                      |  2 +-
 sound/soc/samsung/dma.c                        |  2 +-
 sound/soc/samsung/i2s.c                        |  5 ++--
 sound/soc/samsung/idma.c                       |  2 +-
 sound/soc/samsung/littlemill.c                 |  2 +-
 sound/soc/samsung/lowland.c                    |  2 +-
 sound/soc/samsung/pcm.c                        |  2 +-
 sound/soc/samsung/s3c2412-i2s.c                |  2 +-
 sound/soc/samsung/s3c24xx-i2s.c                |  2 +-
 sound/soc/samsung/s3c24xx_simtec.c             |  2 +-
 sound/soc/samsung/s3c24xx_simtec_hermes.c      |  2 +-
 sound/soc/samsung/s3c24xx_simtec_tlv320aic23.c |  2 +-
 sound/soc/samsung/smdk_wm8580pcm.c             |  2 +-
 sound/soc/samsung/smdk_wm8994.c                |  2 +-
 sound/soc/samsung/smdk_wm8994pcm.c             |  2 +-
 sound/soc/samsung/spdif.c                      |  2 +-
 sound/soc/samsung/speyside.c                   |  2 +-
 sound/soc/samsung/tobermory.c                  |  2 +-
 sound/soc/sh/dma-sh7760.c                      |  2 +-
 sound/soc/sh/hac.c                             |  2 +-
 sound/soc/sh/siu_dai.c                         |  2 +-
 sound/soc/sh/ssi.c                             |  2 +-
 sound/soc/soc-utils.c                          |  2 +-
 sound/soc/spear/spear_pcm.c                    |  2 +-
 sound/soc/tegra/tegra20_das.c                  |  2 +-
 sound/soc/tegra/tegra20_i2s.c                  |  2 +-
 sound/soc/tegra/tegra20_spdif.c                |  2 +-
 sound/soc/tegra/tegra30_ahub.c                 |  2 +-
 sound/soc/tegra/tegra30_i2s.c                  |  2 +-
 sound/soc/tegra/tegra_alc5632.c                |  2 +-
 sound/soc/tegra/tegra_pcm.c                    |  2 +-
 sound/soc/tegra/tegra_wm8753.c                 |  2 +-
 sound/soc/tegra/tegra_wm8903.c                 |  2 +-
 sound/soc/tegra/trimslice.c                    |  2 +-
 sound/soc/txx9/txx9aclc-ac97.c                 |  2 +-
 sound/soc/txx9/txx9aclc.c                      |  2 +-
 sound/soc/ux500/mop500.c                       |  4 +--
 sound/soc/ux500/ux500_msp_dai.c                |  2 +-
 sound/soc/ux500/ux500_pcm.c                    |  2 +-
 sound/sparc/amd7930.c                          |  8 +++---
 sound/sparc/cs4231.c                           | 24 ++++++++---------
 sound/sparc/dbri.c                             | 18 ++++++-------
 sound/spi/at73c213.c                           | 12 ++++-----
 398 files changed, 1042 insertions(+), 1120 deletions(-)

diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index eb9cad3..5ea9724 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -832,7 +832,7 @@ static struct snd_ac97_bus_ops aaci_bus_ops = {
 	.read	= aaci_ac97_read,
 };
 
-static int __devinit aaci_probe_ac97(struct aaci *aaci)
+static int aaci_probe_ac97(struct aaci *aaci)
 {
 	struct snd_ac97_template ac97_template;
 	struct snd_ac97_bus *ac97_bus;
@@ -893,7 +893,7 @@ static void aaci_free_card(struct snd_card *card)
 		iounmap(aaci->base);
 }
 
-static struct aaci * __devinit aaci_init_card(struct amba_device *dev)
+static struct aaci *aaci_init_card(struct amba_device *dev)
 {
 	struct aaci *aaci;
 	struct snd_card *card;
@@ -926,7 +926,7 @@ static struct aaci * __devinit aaci_init_card(struct amba_device *dev)
 	return aaci;
 }
 
-static int __devinit aaci_init_pcm(struct aaci *aaci)
+static int aaci_init_pcm(struct aaci *aaci)
 {
 	struct snd_pcm *pcm;
 	int ret;
@@ -948,7 +948,7 @@ static int __devinit aaci_init_pcm(struct aaci *aaci)
 	return ret;
 }
 
-static unsigned int __devinit aaci_size_fifo(struct aaci *aaci)
+static unsigned int aaci_size_fifo(struct aaci *aaci)
 {
 	struct aaci_runtime *aacirun = &aaci->playback;
 	int i;
@@ -984,7 +984,7 @@ static unsigned int __devinit aaci_size_fifo(struct aaci *aaci)
 	return i;
 }
 
-static int __devinit aaci_probe(struct amba_device *dev,
+static int aaci_probe(struct amba_device *dev,
 	const struct amba_id *id)
 {
 	struct aaci *aaci;
diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c
index 48d7c0a..6fc0ae9 100644
--- a/sound/arm/pxa2xx-ac97-lib.c
+++ b/sound/arm/pxa2xx-ac97-lib.c
@@ -314,7 +314,7 @@ int pxa2xx_ac97_hw_resume(void)
 EXPORT_SYMBOL_GPL(pxa2xx_ac97_hw_resume);
 #endif
 
-int __devinit pxa2xx_ac97_hw_probe(struct platform_device *dev)
+int pxa2xx_ac97_hw_probe(struct platform_device *dev)
 {
 	int ret;
 	pxa2xx_audio_ops_t *pdata = dev->dev.platform_data;
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index 6a5d7b3..59ffc3e 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -163,7 +163,7 @@ static int pxa2xx_ac97_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm_ops, pxa2xx_ac97_suspend, pxa2xx_ac97_resume);
 #endif
 
-static int __devinit pxa2xx_ac97_probe(struct platform_device *dev)
+static int pxa2xx_ac97_probe(struct platform_device *dev)
 {
 	struct snd_card *card;
 	struct snd_ac97_bus *ac97_bus;
diff --git a/sound/atmel/abdac.c b/sound/atmel/abdac.c
index ba14434..d3b9cf5 100644
--- a/sound/atmel/abdac.c
+++ b/sound/atmel/abdac.c
@@ -309,7 +309,7 @@ static struct snd_pcm_ops atmel_abdac_ops = {
 	.pointer	= atmel_abdac_pointer,
 };
 
-static int __devinit atmel_abdac_pcm_new(struct atmel_abdac *dac)
+static int atmel_abdac_pcm_new(struct atmel_abdac *dac)
 {
 	struct snd_pcm_hardware hw = atmel_abdac_hw;
 	struct snd_pcm *pcm;
@@ -386,7 +386,7 @@ static int set_sample_rates(struct atmel_abdac *dac)
 	return retval;
 }
 
-static int __devinit atmel_abdac_probe(struct platform_device *pdev)
+static int atmel_abdac_probe(struct platform_device *pdev)
 {
 	struct snd_card		*card;
 	struct atmel_abdac	*dac;
diff --git a/sound/atmel/ac97c.c b/sound/atmel/ac97c.c
index a4bcd8d..ebe992b 100644
--- a/sound/atmel/ac97c.c
+++ b/sound/atmel/ac97c.c
@@ -756,7 +756,7 @@ static struct ac97_pcm at91_ac97_pcm_defs[] __devinitdata = {
 	},
 };
 
-static int __devinit atmel_ac97c_pcm_new(struct atmel_ac97c *chip)
+static int atmel_ac97c_pcm_new(struct atmel_ac97c *chip)
 {
 	struct snd_pcm		*pcm;
 	struct snd_pcm_hardware	hw = atmel_ac97c_hw;
@@ -902,7 +902,7 @@ static void atmel_ac97c_reset(struct atmel_ac97c *chip)
 	}
 }
 
-static int __devinit atmel_ac97c_probe(struct platform_device *pdev)
+static int atmel_ac97c_probe(struct platform_device *pdev)
 {
 	struct snd_card			*card;
 	struct atmel_ac97c		*chip;
diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
index c4ed8ef..93c19e0 100644
--- a/sound/drivers/aloop.c
+++ b/sound/drivers/aloop.c
@@ -774,7 +774,7 @@ static struct snd_pcm_ops loopback_capture_ops = {
 	.mmap =		snd_pcm_lib_mmap_vmalloc,
 };
 
-static int __devinit loopback_pcm_new(struct loopback *loopback,
+static int loopback_pcm_new(struct loopback *loopback,
 				      int device, int substreams)
 {
 	struct snd_pcm *pcm;
@@ -998,7 +998,7 @@ static struct snd_kcontrol_new loopback_controls[]  __devinitdata = {
 }
 };
 
-static int __devinit loopback_mixer_new(struct loopback *loopback, int notify)
+static int loopback_mixer_new(struct loopback *loopback, int notify)
 {
 	struct snd_card *card = loopback->card;
 	struct snd_pcm *pcm;
@@ -1111,7 +1111,7 @@ static void print_cable_info(struct snd_info_entry *entry,
 	mutex_unlock(&loopback->cable_lock);
 }
 
-static int __devinit loopback_proc_new(struct loopback *loopback, int cidx)
+static int loopback_proc_new(struct loopback *loopback, int cidx)
 {
 	char name[32];
 	struct snd_info_entry *entry;
@@ -1132,7 +1132,7 @@ static int __devinit loopback_proc_new(struct loopback *loopback, int cidx)
 
 #endif
 
-static int __devinit loopback_probe(struct platform_device *devptr)
+static int loopback_probe(struct platform_device *devptr)
 {
 	struct snd_card *card;
 	struct loopback *loopback;
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index 339a924..7cfb2f2 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -688,7 +688,7 @@ static struct snd_pcm_ops dummy_pcm_ops_no_buf = {
 	.page =		dummy_pcm_page,
 };
 
-static int __devinit snd_card_dummy_pcm(struct snd_dummy *dummy, int device,
+static int snd_card_dummy_pcm(struct snd_dummy *dummy, int device,
 					int substreams)
 {
 	struct snd_pcm *pcm;
@@ -891,7 +891,7 @@ DUMMY_CAPSRC("CD Capture Switch", 0, MIXER_ADDR_CD),
 },
 };
 
-static int __devinit snd_card_dummy_new_mixer(struct snd_dummy *dummy)
+static int snd_card_dummy_new_mixer(struct snd_dummy *dummy)
 {
 	struct snd_card *card = dummy->card;
 	struct snd_kcontrol *kcontrol;
@@ -1031,7 +1031,7 @@ static void dummy_proc_write(struct snd_info_entry *entry,
 	}
 }
 
-static void __devinit dummy_proc_init(struct snd_dummy *chip)
+static void dummy_proc_init(struct snd_dummy *chip)
 {
 	struct snd_info_entry *entry;
 
@@ -1046,7 +1046,7 @@ static void __devinit dummy_proc_init(struct snd_dummy *chip)
 #define dummy_proc_init(x)
 #endif /* CONFIG_SND_DEBUG && CONFIG_PROC_FS */
 
-static int __devinit snd_dummy_probe(struct platform_device *devptr)
+static int snd_dummy_probe(struct platform_device *devptr)
 {
 	struct snd_card *card;
 	struct snd_dummy *dummy;
diff --git a/sound/drivers/ml403-ac97cr.c b/sound/drivers/ml403-ac97cr.c
index 6c83b1a..9a1f56f 100644
--- a/sound/drivers/ml403-ac97cr.c
+++ b/sound/drivers/ml403-ac97cr.c
@@ -1063,8 +1063,7 @@ snd_ml403_ac97cr_codec_write(struct snd_ac97 *ac97, unsigned short reg,
 	return;
 }
 
-static int __devinit
-snd_ml403_ac97cr_chip_init(struct snd_ml403_ac97cr *ml403_ac97cr)
+static int snd_ml403_ac97cr_chip_init(struct snd_ml403_ac97cr *ml403_ac97cr)
 {
 	unsigned long end_time;
 	PDEBUG(INIT_INFO, "chip_init():\n");
@@ -1108,8 +1107,7 @@ static int snd_ml403_ac97cr_dev_free(struct snd_device *snddev)
 	return snd_ml403_ac97cr_free(ml403_ac97cr);
 }
 
-static int __devinit
-snd_ml403_ac97cr_create(struct snd_card *card, struct platform_device *pfdev,
+static int snd_ml403_ac97cr_create(struct snd_card *card, struct platform_device *pfdev,
 			struct snd_ml403_ac97cr **rml403_ac97cr)
 {
 	struct snd_ml403_ac97cr *ml403_ac97cr;
@@ -1204,8 +1202,7 @@ static void snd_ml403_ac97cr_mixer_free(struct snd_ac97 *ac97)
 	PDEBUG(INIT_INFO, "mixer_free(): (done)\n");
 }
 
-static int __devinit
-snd_ml403_ac97cr_mixer(struct snd_ml403_ac97cr *ml403_ac97cr)
+static int snd_ml403_ac97cr_mixer(struct snd_ml403_ac97cr *ml403_ac97cr)
 {
 	struct snd_ac97_bus *bus;
 	struct snd_ac97_template ac97;
@@ -1237,8 +1234,7 @@ snd_ml403_ac97cr_mixer(struct snd_ml403_ac97cr *ml403_ac97cr)
 	return err;
 }
 
-static int __devinit
-snd_ml403_ac97cr_pcm(struct snd_ml403_ac97cr *ml403_ac97cr, int device,
+static int snd_ml403_ac97cr_pcm(struct snd_ml403_ac97cr *ml403_ac97cr, int device,
 		     struct snd_pcm **rpcm)
 {
 	struct snd_pcm *pcm;
@@ -1268,7 +1264,7 @@ snd_ml403_ac97cr_pcm(struct snd_ml403_ac97cr *ml403_ac97cr, int device,
 	return 0;
 }
 
-static int __devinit snd_ml403_ac97cr_probe(struct platform_device *pfdev)
+static int snd_ml403_ac97cr_probe(struct platform_device *pfdev)
 {
 	struct snd_card *card;
 	struct snd_ml403_ac97cr *ml403_ac97cr = NULL;
diff --git a/sound/drivers/mpu401/mpu401.c b/sound/drivers/mpu401/mpu401.c
index 5a7136e..5c10699 100644
--- a/sound/drivers/mpu401/mpu401.c
+++ b/sound/drivers/mpu401/mpu401.c
@@ -100,7 +100,7 @@ static int snd_mpu401_create(int dev, struct snd_card **rcard)
 	return err;
 }
 
-static int __devinit snd_mpu401_probe(struct platform_device *devptr)
+static int snd_mpu401_probe(struct platform_device *devptr)
 {
 	int dev = devptr->id;
 	int err;
@@ -156,7 +156,7 @@ static struct pnp_device_id snd_mpu401_pnpids[] = {
 
 MODULE_DEVICE_TABLE(pnp, snd_mpu401_pnpids);
 
-static int __devinit snd_mpu401_pnp(int dev, struct pnp_dev *device,
+static int snd_mpu401_pnp(int dev, struct pnp_dev *device,
 				 const struct pnp_device_id *id)
 {
 	if (!pnp_port_valid(device, 0) ||
@@ -182,7 +182,7 @@ static int __devinit snd_mpu401_pnp(int dev, struct pnp_dev *device,
 	return 0;
 }
 
-static int __devinit snd_mpu401_pnp_probe(struct pnp_dev *pnp_dev,
+static int snd_mpu401_pnp_probe(struct pnp_dev *pnp_dev,
 					  const struct pnp_device_id *id)
 {
 	static int dev;
diff --git a/sound/drivers/mtpav.c b/sound/drivers/mtpav.c
index ebeff33..8fd51d5 100644
--- a/sound/drivers/mtpav.c
+++ b/sound/drivers/mtpav.c
@@ -583,7 +583,7 @@ static irqreturn_t snd_mtpav_irqh(int irq, void *dev_id)
 /*
  * get ISA resources
  */
-static int __devinit snd_mtpav_get_ISA(struct mtpav * mcard)
+static int snd_mtpav_get_ISA(struct mtpav * mcard)
 {
 	if ((mcard->res_port = request_region(port, 3, "MotuMTPAV MIDI")) == NULL) {
 		snd_printk(KERN_ERR "MTVAP port 0x%lx is busy\n", port);
@@ -619,7 +619,7 @@ static struct snd_rawmidi_ops snd_mtpav_input = {
  * get RAWMIDI resources
  */
 
-static void __devinit snd_mtpav_set_name(struct mtpav *chip,
+static void snd_mtpav_set_name(struct mtpav *chip,
 				      struct snd_rawmidi_substream *substream)
 {
 	if (substream->number >= 0 && substream->number < chip->num_ports)
@@ -634,7 +634,7 @@ static void __devinit snd_mtpav_set_name(struct mtpav *chip,
 		strcpy(substream->name, "MTP broadcast");
 }
 
-static int __devinit snd_mtpav_get_RAWMIDI(struct mtpav *mcard)
+static int snd_mtpav_get_RAWMIDI(struct mtpav *mcard)
 {
 	int rval;
 	struct snd_rawmidi *rawmidi;
@@ -691,7 +691,7 @@ static void snd_mtpav_free(struct snd_card *card)
 
 /*
  */
-static int __devinit snd_mtpav_probe(struct platform_device *dev)
+static int snd_mtpav_probe(struct platform_device *dev)
 {
 	struct snd_card *card;
 	int err;
diff --git a/sound/drivers/mts64.c b/sound/drivers/mts64.c
index d2b9e09..2cbacb4 100644
--- a/sound/drivers/mts64.c
+++ b/sound/drivers/mts64.c
@@ -83,7 +83,7 @@ static int snd_mts64_free(struct mts64 *mts)
 	return 0;
 }
 
-static int __devinit snd_mts64_create(struct snd_card *card, 
+static int snd_mts64_create(struct snd_card *card,
 				      struct pardevice *pardev, 
 				      struct mts64 **rchip)
 {
@@ -214,7 +214,7 @@ static int mts64_device_ready(struct parport *p)
  *  0 init ok
  *  -EIO failure
  */
-static int __devinit mts64_device_init(struct parport *p)
+static int mts64_device_init(struct parport *p)
 {
 	int i;
 
@@ -290,7 +290,7 @@ static u8 mts64_map_midi_input(u8 c)
  *  0       device found
  *  -ENODEV no device
  */
-static int __devinit mts64_probe(struct parport *p)
+static int mts64_probe(struct parport *p)
 {
 	u8 c;
 
@@ -663,7 +663,7 @@ static struct snd_kcontrol_new mts64_ctl_smpte_fps __devinitdata = {
 };
 
 
-static int __devinit snd_mts64_ctl_create(struct snd_card *card, 
+static int snd_mts64_ctl_create(struct snd_card *card,
 					  struct mts64 *mts) 
 {
 	int err, i;
@@ -774,7 +774,7 @@ static struct snd_rawmidi_ops snd_mts64_rawmidi_input_ops = {
 };
 
 /* Create and initialize the rawmidi component */
-static int __devinit snd_mts64_rawmidi_create(struct snd_card *card)
+static int snd_mts64_rawmidi_create(struct snd_card *card)
 {
 	struct mts64 *mts = card->private_data;
 	struct snd_rawmidi *rmidi;
@@ -860,7 +860,7 @@ __out:
 	spin_unlock(&mts->lock);
 }
 
-static int __devinit snd_mts64_probe_port(struct parport *p)
+static int snd_mts64_probe_port(struct parport *p)
 {
 	struct pardevice *pardev;
 	int res;
@@ -884,7 +884,7 @@ static int __devinit snd_mts64_probe_port(struct parport *p)
 	return res;
 }
 
-static void __devinit snd_mts64_attach(struct parport *p)
+static void snd_mts64_attach(struct parport *p)
 {
 	struct platform_device *device;
 
@@ -940,7 +940,7 @@ static void snd_mts64_card_private_free(struct snd_card *card)
 	snd_mts64_free(mts);
 }
 
-static int __devinit snd_mts64_probe(struct platform_device *pdev)
+static int snd_mts64_probe(struct platform_device *pdev)
 {
 	struct pardevice *pardev;
 	struct parport *p;
diff --git a/sound/drivers/pcsp/pcsp.c b/sound/drivers/pcsp/pcsp.c
index c9e5af9..0ad0105 100644
--- a/sound/drivers/pcsp/pcsp.c
+++ b/sound/drivers/pcsp/pcsp.c
@@ -39,7 +39,7 @@ MODULE_PARM_DESC(nopcm, "Disable PC-Speaker PCM sound. Only beeps remain.");
 
 struct snd_pcsp pcsp_chip;
 
-static int __devinit snd_pcsp_create(struct snd_card *card)
+static int snd_pcsp_create(struct snd_card *card)
 {
 	static struct snd_device_ops ops = { };
 	struct timespec tp;
@@ -93,7 +93,7 @@ static int __devinit snd_pcsp_create(struct snd_card *card)
 	return 0;
 }
 
-static int __devinit snd_card_pcsp_probe(int devnum, struct device *dev)
+static int snd_card_pcsp_probe(int devnum, struct device *dev)
 {
 	struct snd_card *card;
 	int err;
@@ -142,7 +142,7 @@ static int __devinit snd_card_pcsp_probe(int devnum, struct device *dev)
 	return 0;
 }
 
-static int __devinit alsa_card_pcsp_init(struct device *dev)
+static int alsa_card_pcsp_init(struct device *dev)
 {
 	int err;
 
@@ -166,7 +166,7 @@ static void __devexit alsa_card_pcsp_exit(struct snd_pcsp *chip)
 	snd_card_free(chip->card);
 }
 
-static int __devinit pcsp_probe(struct platform_device *dev)
+static int pcsp_probe(struct platform_device *dev)
 {
 	int err;
 
diff --git a/sound/drivers/pcsp/pcsp_input.c b/sound/drivers/pcsp/pcsp_input.c
index b5e2b54..b874b0a 100644
--- a/sound/drivers/pcsp/pcsp_input.c
+++ b/sound/drivers/pcsp/pcsp_input.c
@@ -77,7 +77,7 @@ static int pcspkr_input_event(struct input_dev *dev, unsigned int type,
 	return 0;
 }
 
-int __devinit pcspkr_input_init(struct input_dev **rdev, struct device *dev)
+int pcspkr_input_init(struct input_dev **rdev, struct device *dev)
 {
 	int err;
 
diff --git a/sound/drivers/pcsp/pcsp_input.h b/sound/drivers/pcsp/pcsp_input.h
index e66738c..d692749 100644
--- a/sound/drivers/pcsp/pcsp_input.h
+++ b/sound/drivers/pcsp/pcsp_input.h
@@ -7,7 +7,7 @@
 #ifndef __PCSP_INPUT_H__
 #define __PCSP_INPUT_H__
 
-int __devinit pcspkr_input_init(struct input_dev **rdev, struct device *dev);
+int pcspkr_input_init(struct input_dev **rdev, struct device *dev);
 int pcspkr_input_remove(struct input_dev *dev);
 void pcspkr_stop_sound(void);
 
diff --git a/sound/drivers/pcsp/pcsp_lib.c b/sound/drivers/pcsp/pcsp_lib.c
index 434981d..29ebaa4 100644
--- a/sound/drivers/pcsp/pcsp_lib.c
+++ b/sound/drivers/pcsp/pcsp_lib.c
@@ -334,7 +334,7 @@ static struct snd_pcm_ops snd_pcsp_playback_ops = {
 	.pointer = snd_pcsp_playback_pointer,
 };
 
-int __devinit snd_pcsp_new_pcm(struct snd_pcsp *chip)
+int snd_pcsp_new_pcm(struct snd_pcsp *chip)
 {
 	int err;
 
diff --git a/sound/drivers/pcsp/pcsp_mixer.c b/sound/drivers/pcsp/pcsp_mixer.c
index 6f633f4..82bb082 100644
--- a/sound/drivers/pcsp/pcsp_mixer.c
+++ b/sound/drivers/pcsp/pcsp_mixer.c
@@ -128,7 +128,7 @@ static struct snd_kcontrol_new __devinitdata snd_pcsp_controls_spkr[] = {
 	PCSP_MIXER_CONTROL(pcspkr, "Beep Playback Switch"),
 };
 
-static int __devinit snd_pcsp_ctls_add(struct snd_pcsp *chip,
+static int snd_pcsp_ctls_add(struct snd_pcsp *chip,
 	struct snd_kcontrol_new *ctls, int num)
 {
 	int i, err;
@@ -141,7 +141,7 @@ static int __devinit snd_pcsp_ctls_add(struct snd_pcsp *chip,
 	return 0;
 }
 
-int __devinit snd_pcsp_new_mixer(struct snd_pcsp *chip, int nopcm)
+int snd_pcsp_new_mixer(struct snd_pcsp *chip, int nopcm)
 {
 	int err;
 	struct snd_card *card = chip->card;
diff --git a/sound/drivers/portman2x4.c b/sound/drivers/portman2x4.c
index c7df9dd..bc4be6f 100644
--- a/sound/drivers/portman2x4.c
+++ b/sound/drivers/portman2x4.c
@@ -96,7 +96,7 @@ static int portman_free(struct portman *pm)
 	return 0;
 }
 
-static int __devinit portman_create(struct snd_card *card, 
+static int portman_create(struct snd_card *card,
 				    struct pardevice *pardev, 
 				    struct portman **rchip)
 {
@@ -561,7 +561,7 @@ static struct snd_rawmidi_ops snd_portman_midi_input = {
 };
 
 /* Create and initialize the rawmidi component */
-static int __devinit snd_portman_rawmidi_create(struct snd_card *card)
+static int snd_portman_rawmidi_create(struct snd_card *card)
 {
 	struct portman *pm = card->private_data;
 	struct snd_rawmidi *rmidi;
@@ -648,7 +648,7 @@ static void snd_portman_interrupt(void *userdata)
 	spin_unlock(&pm->reg_lock);
 }
 
-static int __devinit snd_portman_probe_port(struct parport *p)
+static int snd_portman_probe_port(struct parport *p)
 {
 	struct pardevice *pardev;
 	int res;
@@ -672,7 +672,7 @@ static int __devinit snd_portman_probe_port(struct parport *p)
 	return res ? -EIO : 0;
 }
 
-static void __devinit snd_portman_attach(struct parport *p)
+static void snd_portman_attach(struct parport *p)
 {
 	struct platform_device *device;
 
@@ -728,7 +728,7 @@ static void snd_portman_card_private_free(struct snd_card *card)
 	portman_free(pm);
 }
 
-static int __devinit snd_portman_probe(struct platform_device *pdev)
+static int snd_portman_probe(struct platform_device *pdev)
 {
 	struct pardevice *pardev;
 	struct parport *p;
diff --git a/sound/drivers/serial-u16550.c b/sound/drivers/serial-u16550.c
index 8930e23..310b075 100644
--- a/sound/drivers/serial-u16550.c
+++ b/sound/drivers/serial-u16550.c
@@ -328,7 +328,7 @@ static void snd_uart16550_buffer_timer(unsigned long data)
  *  return 0 if found
  *  return negative error if not found
  */
-static int __devinit snd_uart16550_detect(struct snd_uart16550 *uart)
+static int snd_uart16550_detect(struct snd_uart16550 *uart)
 {
 	unsigned long io_base = uart->base;
 	int ok;
@@ -783,7 +783,7 @@ static int snd_uart16550_dev_free(struct snd_device *device)
 	return snd_uart16550_free(uart);
 }
 
-static int __devinit snd_uart16550_create(struct snd_card *card,
+static int snd_uart16550_create(struct snd_card *card,
 				       unsigned long iobase,
 				       int irq,
 				       unsigned int speed,
@@ -863,7 +863,7 @@ static int __devinit snd_uart16550_create(struct snd_card *card,
 	return 0;
 }
 
-static void __devinit snd_uart16550_substreams(struct snd_rawmidi_str *stream)
+static void snd_uart16550_substreams(struct snd_rawmidi_str *stream)
 {
 	struct snd_rawmidi_substream *substream;
 
@@ -872,7 +872,7 @@ static void __devinit snd_uart16550_substreams(struct snd_rawmidi_str *stream)
 	}
 }
 
-static int __devinit snd_uart16550_rmidi(struct snd_uart16550 *uart, int device,
+static int snd_uart16550_rmidi(struct snd_uart16550 *uart, int device,
 				      int outs, int ins,
 				      struct snd_rawmidi **rmidi)
 {
@@ -899,7 +899,7 @@ static int __devinit snd_uart16550_rmidi(struct snd_uart16550 *uart, int device,
 	return 0;
 }
 
-static int __devinit snd_serial_probe(struct platform_device *devptr)
+static int snd_serial_probe(struct platform_device *devptr)
 {
 	struct snd_card *card;
 	struct snd_uart16550 *uart;
diff --git a/sound/drivers/virmidi.c b/sound/drivers/virmidi.c
index edcc0b1..ab3ec53 100644
--- a/sound/drivers/virmidi.c
+++ b/sound/drivers/virmidi.c
@@ -83,7 +83,7 @@ struct snd_card_virmidi {
 static struct platform_device *devices[SNDRV_CARDS];
 
 
-static int __devinit snd_virmidi_probe(struct platform_device *devptr)
+static int snd_virmidi_probe(struct platform_device *devptr)
 {
 	struct snd_card *card;
 	struct snd_card_virmidi *vmidi;
diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
index 040acff..3ac0b9ed 100644
--- a/sound/firewire/speakers.c
+++ b/sound/firewire/speakers.c
@@ -663,7 +663,7 @@ static void fwspk_card_free(struct snd_card *card)
 	mutex_destroy(&fwspk->mutex);
 }
 
-static const struct device_info *__devinit fwspk_detect(struct fw_device *dev)
+static const struct device_info *fwspk_detect(struct fw_device *dev)
 {
 	static const struct device_info griffin_firewave = {
 		.driver_name = "FireWave",
@@ -699,7 +699,7 @@ static const struct device_info *__devinit fwspk_detect(struct fw_device *dev)
 	return NULL;
 }
 
-static int __devinit fwspk_probe(struct device *unit_dev)
+static int fwspk_probe(struct device *unit_dev)
 {
 	struct fw_unit *unit = fw_unit(unit_dev);
 	struct fw_device *fw_dev = fw_parent_device(unit);
diff --git a/sound/isa/ad1816a/ad1816a.c b/sound/isa/ad1816a/ad1816a.c
index e8c54d8..2de24dd 100644
--- a/sound/isa/ad1816a/ad1816a.c
+++ b/sound/isa/ad1816a/ad1816a.c
@@ -94,7 +94,7 @@ MODULE_DEVICE_TABLE(pnp_card, snd_ad1816a_pnpids);
 #define	DRIVER_NAME	"snd-card-ad1816a"
 
 
-static int __devinit snd_card_ad1816a_pnp(int dev, struct pnp_card_link *card,
+static int snd_card_ad1816a_pnp(int dev, struct pnp_card_link *card,
 					  const struct pnp_card_device_id *id)
 {
 	struct pnp_dev *pdev;
@@ -135,7 +135,7 @@ static int __devinit snd_card_ad1816a_pnp(int dev, struct pnp_card_link *card,
 	return 0;
 }
 
-static int __devinit snd_card_ad1816a_probe(int dev, struct pnp_card_link *pcard,
+static int snd_card_ad1816a_probe(int dev, struct pnp_card_link *pcard,
 					    const struct pnp_card_device_id *pid)
 {
 	int error;
@@ -219,7 +219,7 @@ static int __devinit snd_card_ad1816a_probe(int dev, struct pnp_card_link *pcard
 
 static unsigned int __devinitdata ad1816a_devices;
 
-static int __devinit snd_ad1816a_pnp_detect(struct pnp_card_link *card,
+static int snd_ad1816a_pnp_detect(struct pnp_card_link *card,
 					    const struct pnp_card_device_id *id)
 {
 	static int dev;
diff --git a/sound/isa/ad1816a/ad1816a_lib.c b/sound/isa/ad1816a/ad1816a_lib.c
index db64df6..2d61df1 100644
--- a/sound/isa/ad1816a/ad1816a_lib.c
+++ b/sound/isa/ad1816a/ad1816a_lib.c
@@ -537,7 +537,7 @@ void snd_ad1816a_resume(struct snd_ad1816a *chip)
 }
 #endif
 
-static int __devinit snd_ad1816a_probe(struct snd_ad1816a *chip)
+static int snd_ad1816a_probe(struct snd_ad1816a *chip)
 {
 	unsigned long flags;
 
@@ -583,7 +583,7 @@ static int snd_ad1816a_dev_free(struct snd_device *device)
 	return snd_ad1816a_free(chip);
 }
 
-static const char __devinit *snd_ad1816a_chip_id(struct snd_ad1816a *chip)
+static const char *snd_ad1816a_chip_id(struct snd_ad1816a *chip)
 {
 	switch (chip->hardware) {
 	case AD1816A_HW_AD1816A: return "AD1816A";
@@ -596,7 +596,7 @@ static const char __devinit *snd_ad1816a_chip_id(struct snd_ad1816a *chip)
 	}
 }
 
-int __devinit snd_ad1816a_create(struct snd_card *card,
+int snd_ad1816a_create(struct snd_card *card,
 				 unsigned long port, int irq, int dma1, int dma2,
 				 struct snd_ad1816a *chip)
 {
@@ -675,7 +675,7 @@ static struct snd_pcm_ops snd_ad1816a_capture_ops = {
 	.pointer =	snd_ad1816a_capture_pointer,
 };
 
-int __devinit snd_ad1816a_pcm(struct snd_ad1816a *chip, int device, struct snd_pcm **rpcm)
+int snd_ad1816a_pcm(struct snd_ad1816a *chip, int device, struct snd_pcm **rpcm)
 {
 	int error;
 	struct snd_pcm *pcm;
@@ -702,7 +702,7 @@ int __devinit snd_ad1816a_pcm(struct snd_ad1816a *chip, int device, struct snd_p
 	return 0;
 }
 
-int __devinit snd_ad1816a_timer(struct snd_ad1816a *chip, int device, struct snd_timer **rtimer)
+int snd_ad1816a_timer(struct snd_ad1816a *chip, int device, struct snd_timer **rtimer)
 {
 	struct snd_timer *timer;
 	struct snd_timer_id tid;
@@ -969,7 +969,7 @@ AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1),
 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0),
 };
                                         
-int __devinit snd_ad1816a_mixer(struct snd_ad1816a *chip)
+int snd_ad1816a_mixer(struct snd_ad1816a *chip)
 {
 	struct snd_card *card;
 	unsigned int idx;
diff --git a/sound/isa/ad1848/ad1848.c b/sound/isa/ad1848/ad1848.c
index 8e0a9b7..3cef9ec 100644
--- a/sound/isa/ad1848/ad1848.c
+++ b/sound/isa/ad1848/ad1848.c
@@ -64,7 +64,7 @@ MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
 module_param_array(thinkpad, bool, NULL, 0444);
 MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");
 
-static int __devinit snd_ad1848_match(struct device *dev, unsigned int n)
+static int snd_ad1848_match(struct device *dev, unsigned int n)
 {
 	if (!enable[n])
 		return 0;
@@ -84,7 +84,7 @@ static int __devinit snd_ad1848_match(struct device *dev, unsigned int n)
 	return 1;
 }
 
-static int __devinit snd_ad1848_probe(struct device *dev, unsigned int n)
+static int snd_ad1848_probe(struct device *dev, unsigned int n)
 {
 	struct snd_card *card;
 	struct snd_wss *chip;
diff --git a/sound/isa/adlib.c b/sound/isa/adlib.c
index 87add77..6a1c666 100644
--- a/sound/isa/adlib.c
+++ b/sound/isa/adlib.c
@@ -30,7 +30,7 @@ MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
 module_param_array(port, long, NULL, 0444);
 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
 
-static int __devinit snd_adlib_match(struct device *dev, unsigned int n)
+static int snd_adlib_match(struct device *dev, unsigned int n)
 {
 	if (!enable[n])
 		return 0;
@@ -47,7 +47,7 @@ static void snd_adlib_free(struct snd_card *card)
 	release_and_free_resource(card->private_data);
 }
 
-static int __devinit snd_adlib_probe(struct device *dev, unsigned int n)
+static int snd_adlib_probe(struct device *dev, unsigned int n)
 {
 	struct snd_card *card;
 	struct snd_opl3 *opl3;
diff --git a/sound/isa/als100.c b/sound/isa/als100.c
index 60c96a1..538f866 100644
--- a/sound/isa/als100.c
+++ b/sound/isa/als100.c
@@ -117,7 +117,7 @@ static struct pnp_card_device_id snd_als100_pnpids[] = {
 
 MODULE_DEVICE_TABLE(pnp_card, snd_als100_pnpids);
 
-static int __devinit snd_card_als100_pnp(int dev, struct snd_card_als100 *acard,
+static int snd_card_als100_pnp(int dev, struct snd_card_als100 *acard,
 					 struct pnp_card_link *card,
 					 const struct pnp_card_device_id *id)
 {
@@ -183,7 +183,7 @@ static int __devinit snd_card_als100_pnp(int dev, struct snd_card_als100 *acard,
 	return 0;
 }
 
-static int __devinit snd_card_als100_probe(int dev,
+static int snd_card_als100_probe(int dev,
 					struct pnp_card_link *pcard,
 					const struct pnp_card_device_id *pid)
 {
@@ -288,7 +288,7 @@ static int __devinit snd_card_als100_probe(int dev,
 
 static unsigned int __devinitdata als100_devices;
 
-static int __devinit snd_als100_pnp_detect(struct pnp_card_link *card,
+static int snd_als100_pnp_detect(struct pnp_card_link *card,
 					   const struct pnp_card_device_id *id)
 {
 	static int dev;
diff --git a/sound/isa/azt2320.c b/sound/isa/azt2320.c
index 219b611..da5ed43 100644
--- a/sound/isa/azt2320.c
+++ b/sound/isa/azt2320.c
@@ -99,7 +99,7 @@ MODULE_DEVICE_TABLE(pnp_card, snd_azt2320_pnpids);
 
 #define	DRIVER_NAME	"snd-card-azt2320"
 
-static int __devinit snd_card_azt2320_pnp(int dev, struct snd_card_azt2320 *acard,
+static int snd_card_azt2320_pnp(int dev, struct snd_card_azt2320 *acard,
 					  struct pnp_card_link *card,
 					  const struct pnp_card_device_id *id)
 {
@@ -147,7 +147,7 @@ static int __devinit snd_card_azt2320_pnp(int dev, struct snd_card_azt2320 *acar
 }
 
 /* same of snd_sbdsp_command by Jaroslav Kysela */
-static int __devinit snd_card_azt2320_command(unsigned long port, unsigned char val)
+static int snd_card_azt2320_command(unsigned long port, unsigned char val)
 {
 	int i;
 	unsigned long limit;
@@ -161,7 +161,7 @@ static int __devinit snd_card_azt2320_command(unsigned long port, unsigned char
 	return -EBUSY;
 }
 
-static int __devinit snd_card_azt2320_enable_wss(unsigned long port)
+static int snd_card_azt2320_enable_wss(unsigned long port)
 {
 	int error;
 
@@ -174,7 +174,7 @@ static int __devinit snd_card_azt2320_enable_wss(unsigned long port)
 	return 0;
 }
 
-static int __devinit snd_card_azt2320_probe(int dev,
+static int snd_card_azt2320_probe(int dev,
 					    struct pnp_card_link *pcard,
 					    const struct pnp_card_device_id *pid)
 {
@@ -266,7 +266,7 @@ static int __devinit snd_card_azt2320_probe(int dev,
 
 static unsigned int __devinitdata azt2320_devices;
 
-static int __devinit snd_azt2320_pnp_detect(struct pnp_card_link *card,
+static int snd_azt2320_pnp_detect(struct pnp_card_link *card,
 					    const struct pnp_card_device_id *id)
 {
 	static int dev;
diff --git a/sound/isa/cmi8328.c b/sound/isa/cmi8328.c
index 55fabcf..6dfead9 100644
--- a/sound/isa/cmi8328.c
+++ b/sound/isa/cmi8328.c
@@ -140,7 +140,7 @@ static void snd_cmi8328_cfg_restore(u16 port, u8 cfg[])
 	snd_cmi8328_cfg_write(port, CFG3, cfg[2]);
 }
 
-static int __devinit snd_cmi8328_mixer(struct snd_wss *chip)
+static int snd_cmi8328_mixer(struct snd_wss *chip)
 {
 	struct snd_card *card;
 	struct snd_ctl_elem_id id1, id2;
@@ -212,7 +212,7 @@ int array_find_l(long array[], long item)
 	return -1;
 }
 
-static int __devinit snd_cmi8328_probe(struct device *pdev, unsigned int ndev)
+static int snd_cmi8328_probe(struct device *pdev, unsigned int ndev)
 {
 	struct snd_card *card;
 	struct snd_opl3 *opl3;
diff --git a/sound/isa/cmi8330.c b/sound/isa/cmi8330.c
index ee534e1..4c6e4eb 100644
--- a/sound/isa/cmi8330.c
+++ b/sound/isa/cmi8330.c
@@ -281,7 +281,7 @@ static unsigned char cmi8330_sb_init_values[][2] __devinitdata = {
 };
 
 
-static int __devinit cmi8330_add_sb_mixers(struct snd_sb *chip)
+static int cmi8330_add_sb_mixers(struct snd_sb *chip)
 {
 	int idx, err;
 	unsigned long flags;
@@ -306,7 +306,7 @@ static int __devinit cmi8330_add_sb_mixers(struct snd_sb *chip)
 }
 #endif
 
-static int __devinit snd_cmi8330_mixer(struct snd_card *card, struct snd_cmi8330 *acard)
+static int snd_cmi8330_mixer(struct snd_card *card, struct snd_cmi8330 *acard)
 {
 	unsigned int idx;
 	int err;
@@ -329,7 +329,7 @@ static int __devinit snd_cmi8330_mixer(struct snd_card *card, struct snd_cmi8330
 }
 
 #ifdef CONFIG_PNP
-static int __devinit snd_cmi8330_pnp(int dev, struct snd_cmi8330 *acard,
+static int snd_cmi8330_pnp(int dev, struct snd_cmi8330 *acard,
 				     struct pnp_card_link *card,
 				     const struct pnp_card_device_id *id)
 {
@@ -437,7 +437,7 @@ static int snd_cmi8330_capture_open(struct snd_pcm_substream *substream)
 	return chip->streams[SNDRV_PCM_STREAM_CAPTURE].open(substream);
 }
 
-static int __devinit snd_cmi8330_pcm(struct snd_card *card, struct snd_cmi8330 *chip)
+static int snd_cmi8330_pcm(struct snd_card *card, struct snd_cmi8330 *chip)
 {
 	struct snd_pcm *pcm;
 	const struct snd_pcm_ops *ops;
@@ -532,7 +532,7 @@ static int snd_cmi8330_card_new(int dev, struct snd_card **cardp)
 	return 0;
 }
 
-static int __devinit snd_cmi8330_probe(struct snd_card *card, int dev)
+static int snd_cmi8330_probe(struct snd_card *card, int dev)
 {
 	struct snd_cmi8330 *acard;
 	int i, err;
@@ -613,7 +613,7 @@ static int __devinit snd_cmi8330_probe(struct snd_card *card, int dev)
 	return snd_card_register(card);
 }
 
-static int __devinit snd_cmi8330_isa_match(struct device *pdev,
+static int snd_cmi8330_isa_match(struct device *pdev,
 					   unsigned int dev)
 {
 	if (!enable[dev] || is_isapnp_selected(dev))
@@ -629,7 +629,7 @@ static int __devinit snd_cmi8330_isa_match(struct device *pdev,
 	return 1;
 }
 
-static int __devinit snd_cmi8330_isa_probe(struct device *pdev,
+static int snd_cmi8330_isa_probe(struct device *pdev,
 					   unsigned int dev)
 {
 	struct snd_card *card;
@@ -685,7 +685,7 @@ static struct isa_driver snd_cmi8330_driver = {
 
 
 #ifdef CONFIG_PNP
-static int __devinit snd_cmi8330_pnp_detect(struct pnp_card_link *pcard,
+static int snd_cmi8330_pnp_detect(struct pnp_card_link *pcard,
 					    const struct pnp_card_device_id *pid)
 {
 	static int dev;
diff --git a/sound/isa/cs423x/cs4231.c b/sound/isa/cs423x/cs4231.c
index 0c67c37..ece5d8f 100644
--- a/sound/isa/cs423x/cs4231.c
+++ b/sound/isa/cs423x/cs4231.c
@@ -68,7 +68,7 @@ MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
 module_param_array(dma2, int, NULL, 0444);
 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
 
-static int __devinit snd_cs4231_match(struct device *dev, unsigned int n)
+static int snd_cs4231_match(struct device *dev, unsigned int n)
 {
 	if (!enable[n])
 		return 0;
@@ -88,7 +88,7 @@ static int __devinit snd_cs4231_match(struct device *dev, unsigned int n)
 	return 1;
 }
 
-static int __devinit snd_cs4231_probe(struct device *dev, unsigned int n)
+static int snd_cs4231_probe(struct device *dev, unsigned int n)
 {
 	struct snd_card *card;
 	struct snd_wss *chip;
diff --git a/sound/isa/cs423x/cs4236.c b/sound/isa/cs423x/cs4236.c
index f5fba07..752ccba 100644
--- a/sound/isa/cs423x/cs4236.c
+++ b/sound/isa/cs423x/cs4236.c
@@ -251,7 +251,7 @@ static struct pnp_card_device_id snd_cs423x_pnpids[] = {
 MODULE_DEVICE_TABLE(pnp_card, snd_cs423x_pnpids);
 
 /* WSS initialization */
-static int __devinit snd_cs423x_pnp_init_wss(int dev, struct pnp_dev *pdev)
+static int snd_cs423x_pnp_init_wss(int dev, struct pnp_dev *pdev)
 {
 	if (pnp_activate_dev(pdev) < 0) {
 		printk(KERN_ERR IDENT " WSS PnP configure failed for WSS (out of resources?)\n");
@@ -272,7 +272,7 @@ static int __devinit snd_cs423x_pnp_init_wss(int dev, struct pnp_dev *pdev)
 }
 
 /* CTRL initialization */
-static int __devinit snd_cs423x_pnp_init_ctrl(int dev, struct pnp_dev *pdev)
+static int snd_cs423x_pnp_init_ctrl(int dev, struct pnp_dev *pdev)
 {
 	if (pnp_activate_dev(pdev) < 0) {
 		printk(KERN_ERR IDENT " CTRL PnP configure failed for WSS (out of resources?)\n");
@@ -284,7 +284,7 @@ static int __devinit snd_cs423x_pnp_init_ctrl(int dev, struct pnp_dev *pdev)
 }
 
 /* MPU initialization */
-static int __devinit snd_cs423x_pnp_init_mpu(int dev, struct pnp_dev *pdev)
+static int snd_cs423x_pnp_init_mpu(int dev, struct pnp_dev *pdev)
 {
 	if (pnp_activate_dev(pdev) < 0) {
 		printk(KERN_ERR IDENT " MPU401 PnP configure failed for WSS (out of resources?)\n");
@@ -303,7 +303,7 @@ static int __devinit snd_cs423x_pnp_init_mpu(int dev, struct pnp_dev *pdev)
 	return 0;
 }
 
-static int __devinit snd_card_cs423x_pnp(int dev, struct snd_card_cs4236 *acard,
+static int snd_card_cs423x_pnp(int dev, struct snd_card_cs4236 *acard,
 					 struct pnp_dev *pdev,
 					 struct pnp_dev *cdev)
 {
@@ -317,7 +317,7 @@ static int __devinit snd_card_cs423x_pnp(int dev, struct snd_card_cs4236 *acard,
 	return 0;
 }
 
-static int __devinit snd_card_cs423x_pnpc(int dev, struct snd_card_cs4236 *acard,
+static int snd_card_cs423x_pnpc(int dev, struct snd_card_cs4236 *acard,
 					  struct pnp_card_link *card,
 					  const struct pnp_card_device_id *id)
 {
@@ -378,7 +378,7 @@ static int snd_cs423x_card_new(int dev, struct snd_card **cardp)
 	return 0;
 }
 
-static int __devinit snd_cs423x_probe(struct snd_card *card, int dev)
+static int snd_cs423x_probe(struct snd_card *card, int dev)
 {
 	struct snd_card_cs4236 *acard;
 	struct snd_pcm *pcm;
@@ -456,7 +456,7 @@ static int __devinit snd_cs423x_probe(struct snd_card *card, int dev)
 	return snd_card_register(card);
 }
 
-static int __devinit snd_cs423x_isa_match(struct device *pdev,
+static int snd_cs423x_isa_match(struct device *pdev,
 					  unsigned int dev)
 {
 	if (!enable[dev] || is_isapnp_selected(dev))
@@ -481,7 +481,7 @@ static int __devinit snd_cs423x_isa_match(struct device *pdev,
 	return 1;
 }
 
-static int __devinit snd_cs423x_isa_probe(struct device *pdev,
+static int snd_cs423x_isa_probe(struct device *pdev,
 					  unsigned int dev)
 {
 	struct snd_card *card;
@@ -552,7 +552,7 @@ static struct isa_driver cs423x_isa_driver = {
 
 
 #ifdef CONFIG_PNP
-static int __devinit snd_cs423x_pnpbios_detect(struct pnp_dev *pdev,
+static int snd_cs423x_pnpbios_detect(struct pnp_dev *pdev,
 					       const struct pnp_device_id *id)
 {
 	static int dev;
@@ -626,7 +626,7 @@ static struct pnp_driver cs423x_pnp_driver = {
 #endif
 };
 
-static int __devinit snd_cs423x_pnpc_detect(struct pnp_card_link *pcard,
+static int snd_cs423x_pnpc_detect(struct pnp_card_link *pcard,
 					    const struct pnp_card_device_id *pid)
 {
 	static int dev;
diff --git a/sound/isa/es1688/es1688.c b/sound/isa/es1688/es1688.c
index ffad710..f62803b 100644
--- a/sound/isa/es1688/es1688.c
+++ b/sound/isa/es1688/es1688.c
@@ -90,12 +90,12 @@ MODULE_PARM_DESC(dma8, "8-bit DMA # for " CRD_NAME " driver.");
 #define is_isapnp_selected(dev)		0
 #endif
 
-static int __devinit snd_es1688_match(struct device *dev, unsigned int n)
+static int snd_es1688_match(struct device *dev, unsigned int n)
 {
 	return enable[n] && !is_isapnp_selected(n);
 }
 
-static int __devinit snd_es1688_legacy_create(struct snd_card *card,
+static int snd_es1688_legacy_create(struct snd_card *card,
 					struct device *dev, unsigned int n)
 {
 	struct snd_es1688 *chip = card->private_data;
@@ -134,7 +134,7 @@ static int __devinit snd_es1688_legacy_create(struct snd_card *card,
 	return error;
 }
 
-static int __devinit snd_es1688_probe(struct snd_card *card, unsigned int n)
+static int snd_es1688_probe(struct snd_card *card, unsigned int n)
 {
 	struct snd_es1688 *chip = card->private_data;
 	struct snd_opl3 *opl3;
@@ -182,7 +182,7 @@ static int __devinit snd_es1688_probe(struct snd_card *card, unsigned int n)
 	return snd_card_register(card);
 }
 
-static int __devinit snd_es1688_isa_probe(struct device *dev, unsigned int n)
+static int snd_es1688_isa_probe(struct device *dev, unsigned int n)
 {
 	struct snd_card *card;
 	int error;
@@ -233,7 +233,7 @@ static struct isa_driver snd_es1688_driver = {
 static int snd_es968_pnp_is_probed;
 
 #ifdef CONFIG_PNP
-static int __devinit snd_card_es968_pnp(struct snd_card *card, unsigned int n,
+static int snd_card_es968_pnp(struct snd_card *card, unsigned int n,
 					struct pnp_card_link *pcard,
 					const struct pnp_card_device_id *pid)
 {
@@ -258,7 +258,7 @@ static int __devinit snd_card_es968_pnp(struct snd_card *card, unsigned int n,
 				 mpu_irq[n], dma8[n], ES1688_HW_AUTO);
 }
 
-static int __devinit snd_es968_pnp_detect(struct pnp_card_link *pcard,
+static int snd_es968_pnp_detect(struct pnp_card_link *pcard,
 					  const struct pnp_card_device_id *pid)
 {
 	struct snd_card *card;
diff --git a/sound/isa/es18xx.c b/sound/isa/es18xx.c
index b491185..8fe5dc1 100644
--- a/sound/isa/es18xx.c
+++ b/sound/isa/es18xx.c
@@ -348,7 +348,7 @@ static inline int snd_es18xx_mixer_writable(struct snd_es18xx *chip, unsigned ch
 }
 
 
-static int __devinit snd_es18xx_reset(struct snd_es18xx *chip)
+static int snd_es18xx_reset(struct snd_es18xx *chip)
 {
 	int i;
         outb(0x03, chip->port + 0x06);
@@ -1363,7 +1363,7 @@ static struct snd_kcontrol_new snd_es18xx_hw_volume_controls[] = {
 ES18XX_SINGLE("Hardware Master Volume Split", 0, 0x64, 7, 1, 0),
 };
 
-static int __devinit snd_es18xx_config_read(struct snd_es18xx *chip, unsigned char reg)
+static int snd_es18xx_config_read(struct snd_es18xx *chip, unsigned char reg)
 {
 	int data;
 
@@ -1372,7 +1372,7 @@ static int __devinit snd_es18xx_config_read(struct snd_es18xx *chip, unsigned ch
 	return data;
 }
 
-static void __devinit snd_es18xx_config_write(struct snd_es18xx *chip, 
+static void snd_es18xx_config_write(struct snd_es18xx *chip,
 					      unsigned char reg, unsigned char data)
 {
 	/* No need for spinlocks, this function is used only in
@@ -1384,7 +1384,7 @@ static void __devinit snd_es18xx_config_write(struct snd_es18xx *chip,
 #endif
 }
 
-static int __devinit snd_es18xx_initialize(struct snd_es18xx *chip,
+static int snd_es18xx_initialize(struct snd_es18xx *chip,
 					   unsigned long mpu_port,
 					   unsigned long fm_port)
 {
@@ -1549,7 +1549,7 @@ static int __devinit snd_es18xx_initialize(struct snd_es18xx *chip,
         return 0;
 }
 
-static int __devinit snd_es18xx_identify(struct snd_es18xx *chip)
+static int snd_es18xx_identify(struct snd_es18xx *chip)
 {
 	int hi,lo;
 
@@ -1618,7 +1618,7 @@ static int __devinit snd_es18xx_identify(struct snd_es18xx *chip)
 	return 0;
 }
 
-static int __devinit snd_es18xx_probe(struct snd_es18xx *chip,
+static int snd_es18xx_probe(struct snd_es18xx *chip,
 					unsigned long mpu_port,
 					unsigned long fm_port)
 {
@@ -1680,7 +1680,7 @@ static struct snd_pcm_ops snd_es18xx_capture_ops = {
 	.pointer =	snd_es18xx_capture_pointer,
 };
 
-static int __devinit snd_es18xx_pcm(struct snd_card *card, int device,
+static int snd_es18xx_pcm(struct snd_card *card, int device,
 				    struct snd_pcm **rpcm)
 {
 	struct snd_es18xx *chip = card->private_data;
@@ -1777,7 +1777,7 @@ static int snd_es18xx_dev_free(struct snd_device *device)
 	return snd_es18xx_free(device->card);
 }
 
-static int __devinit snd_es18xx_new_device(struct snd_card *card,
+static int snd_es18xx_new_device(struct snd_card *card,
 					   unsigned long port,
 					   unsigned long mpu_port,
 					   unsigned long fm_port,
@@ -1839,7 +1839,7 @@ static int __devinit snd_es18xx_new_device(struct snd_card *card,
         return 0;
 }
 
-static int __devinit snd_es18xx_mixer(struct snd_card *card)
+static int snd_es18xx_mixer(struct snd_card *card)
 {
 	struct snd_es18xx *chip = card->private_data;
 	int err;
@@ -2016,7 +2016,7 @@ static struct pnp_device_id snd_audiodrive_pnpbiosids[] = {
 MODULE_DEVICE_TABLE(pnp, snd_audiodrive_pnpbiosids);
 
 /* PnP main device initialization */
-static int __devinit snd_audiodrive_pnp_init_main(int dev, struct pnp_dev *pdev)
+static int snd_audiodrive_pnp_init_main(int dev, struct pnp_dev *pdev)
 {
 	if (pnp_activate_dev(pdev) < 0) {
 		snd_printk(KERN_ERR PFX "PnP configure failure (out of resources?)\n");
@@ -2043,7 +2043,7 @@ static int __devinit snd_audiodrive_pnp_init_main(int dev, struct pnp_dev *pdev)
 	return 0;
 }
 
-static int __devinit snd_audiodrive_pnp(int dev, struct snd_es18xx *chip,
+static int snd_audiodrive_pnp(int dev, struct snd_es18xx *chip,
 					struct pnp_dev *pdev)
 {
 	chip->dev = pdev;
@@ -2073,7 +2073,7 @@ static struct pnp_card_device_id snd_audiodrive_pnpids[] = {
 
 MODULE_DEVICE_TABLE(pnp_card, snd_audiodrive_pnpids);
 
-static int __devinit snd_audiodrive_pnpc(int dev, struct snd_es18xx *chip,
+static int snd_audiodrive_pnpc(int dev, struct snd_es18xx *chip,
 					struct pnp_card_link *card,
 					const struct pnp_card_device_id *id)
 {
@@ -2111,7 +2111,7 @@ static int snd_es18xx_card_new(int dev, struct snd_card **cardp)
 			       sizeof(struct snd_es18xx), cardp);
 }
 
-static int __devinit snd_audiodrive_probe(struct snd_card *card, int dev)
+static int snd_audiodrive_probe(struct snd_card *card, int dev)
 {
 	struct snd_es18xx *chip = card->private_data;
 	struct snd_opl3 *opl3;
@@ -2169,12 +2169,12 @@ static int __devinit snd_audiodrive_probe(struct snd_card *card, int dev)
 	return snd_card_register(card);
 }
 
-static int __devinit snd_es18xx_isa_match(struct device *pdev, unsigned int dev)
+static int snd_es18xx_isa_match(struct device *pdev, unsigned int dev)
 {
 	return enable[dev] && !is_isapnp_selected(dev);
 }
 
-static int __devinit snd_es18xx_isa_probe1(int dev, struct device *devptr)
+static int snd_es18xx_isa_probe1(int dev, struct device *devptr)
 {
 	struct snd_card *card;
 	int err;
@@ -2191,7 +2191,7 @@ static int __devinit snd_es18xx_isa_probe1(int dev, struct device *devptr)
 	return 0;
 }
 
-static int __devinit snd_es18xx_isa_probe(struct device *pdev, unsigned int dev)
+static int snd_es18xx_isa_probe(struct device *pdev, unsigned int dev)
 {
 	int err;
 	static int possible_irqs[] = {5, 9, 10, 7, 11, 12, -1};
@@ -2269,7 +2269,7 @@ static struct isa_driver snd_es18xx_isa_driver = {
 
 
 #ifdef CONFIG_PNP
-static int __devinit snd_audiodrive_pnp_detect(struct pnp_dev *pdev,
+static int snd_audiodrive_pnp_detect(struct pnp_dev *pdev,
 					    const struct pnp_device_id *id)
 {
 	static int dev;
@@ -2330,7 +2330,7 @@ static struct pnp_driver es18xx_pnp_driver = {
 #endif
 };
 
-static int __devinit snd_audiodrive_pnpc_detect(struct pnp_card_link *pcard,
+static int snd_audiodrive_pnpc_detect(struct pnp_card_link *pcard,
 					       const struct pnp_card_device_id *pid)
 {
 	static int dev;
diff --git a/sound/isa/galaxy/galaxy.c b/sound/isa/galaxy/galaxy.c
index 1858535..6955e78 100644
--- a/sound/isa/galaxy/galaxy.c
+++ b/sound/isa/galaxy/galaxy.c
@@ -84,7 +84,7 @@ MODULE_PARM_DESC(dma2, "Capture DMA # for " CRD_NAME " driver.");
 
 #define DSP_COMMAND_GET_VERSION	0xe1
 
-static int __devinit dsp_get_byte(void __iomem *port, u8 *val)
+static int dsp_get_byte(void __iomem *port, u8 *val)
 {
 	int loops = 1000;
 
@@ -97,7 +97,7 @@ static int __devinit dsp_get_byte(void __iomem *port, u8 *val)
 	return 0;
 }
 
-static int __devinit dsp_reset(void __iomem *port)
+static int dsp_reset(void __iomem *port)
 {
 	u8 val;
 
@@ -111,7 +111,7 @@ static int __devinit dsp_reset(void __iomem *port)
 	return 0;
 }
 
-static int __devinit dsp_command(void __iomem *port, u8 cmd)
+static int dsp_command(void __iomem *port, u8 cmd)
 {
 	int loops = 1000;
 
@@ -124,7 +124,7 @@ static int __devinit dsp_command(void __iomem *port, u8 cmd)
 	return 0;
 }
 
-static int __devinit dsp_get_version(void __iomem *port, u8 *major, u8 *minor)
+static int dsp_get_version(void __iomem *port, u8 *major, u8 *minor)
 {
 	int err;
 
@@ -161,7 +161,7 @@ static int __devinit dsp_get_version(void __iomem *port, u8 *major, u8 *minor)
 
 #define WSS_SIGNATURE		4
 
-static int __devinit wss_detect(void __iomem *wss_port)
+static int wss_detect(void __iomem *wss_port)
 {
 	if ((ioread8(wss_port + WSS_PORT_SIGNATURE) & 0x3f) != WSS_SIGNATURE)
 		return -ENODEV;
@@ -204,7 +204,7 @@ struct snd_galaxy {
 static u32 config[SNDRV_CARDS];
 static u8 wss_config[SNDRV_CARDS];
 
-static int __devinit snd_galaxy_match(struct device *dev, unsigned int n)
+static int snd_galaxy_match(struct device *dev, unsigned int n)
 {
 	if (!enable[n])
 		return 0;
@@ -379,7 +379,7 @@ fm:
 	return 1;
 }
 
-static int __devinit galaxy_init(struct snd_galaxy *galaxy, u8 *type)
+static int galaxy_init(struct snd_galaxy *galaxy, u8 *type)
 {
 	u8 major;
 	u8 minor;
@@ -411,7 +411,7 @@ static int __devinit galaxy_init(struct snd_galaxy *galaxy, u8 *type)
 	return 0;
 }
 
-static int __devinit galaxy_set_mode(struct snd_galaxy *galaxy, u8 mode)
+static int galaxy_set_mode(struct snd_galaxy *galaxy, u8 mode)
 {
 	int err;
 
@@ -449,7 +449,7 @@ static void galaxy_set_config(struct snd_galaxy *galaxy, u32 config)
 	msleep(10);
 }
 
-static void __devinit galaxy_config(struct snd_galaxy *galaxy, u32 config)
+static void galaxy_config(struct snd_galaxy *galaxy, u32 config)
 {
 	int i;
 
@@ -461,7 +461,7 @@ static void __devinit galaxy_config(struct snd_galaxy *galaxy, u32 config)
 	galaxy_set_config(galaxy, config);
 }
 
-static int __devinit galaxy_wss_config(struct snd_galaxy *galaxy, u8 wss_config)
+static int galaxy_wss_config(struct snd_galaxy *galaxy, u8 wss_config)
 {
 	int err;
 
@@ -498,7 +498,7 @@ static void snd_galaxy_free(struct snd_card *card)
 	}
 }
 
-static int __devinit snd_galaxy_probe(struct device *dev, unsigned int n)
+static int snd_galaxy_probe(struct device *dev, unsigned int n)
 {
 	struct snd_galaxy *galaxy;
 	struct snd_wss *chip;
diff --git a/sound/isa/gus/gusclassic.c b/sound/isa/gus/gusclassic.c
index ec4bd7e..4a4c856 100644
--- a/sound/isa/gus/gusclassic.c
+++ b/sound/isa/gus/gusclassic.c
@@ -73,12 +73,12 @@ MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver.");
 module_param_array(pcm_channels, int, NULL, 0444);
 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver.");
 
-static int __devinit snd_gusclassic_match(struct device *dev, unsigned int n)
+static int snd_gusclassic_match(struct device *dev, unsigned int n)
 {
 	return enable[n];
 }
 
-static int __devinit snd_gusclassic_create(struct snd_card *card,
+static int snd_gusclassic_create(struct snd_card *card,
 		struct device *dev, unsigned int n, struct snd_gus_card **rgus)
 {
 	static long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260};
@@ -123,7 +123,7 @@ static int __devinit snd_gusclassic_create(struct snd_card *card,
 	return error;
 }
 
-static int __devinit snd_gusclassic_detect(struct snd_gus_card *gus)
+static int snd_gusclassic_detect(struct snd_gus_card *gus)
 {
 	unsigned char d;
 
@@ -142,7 +142,7 @@ static int __devinit snd_gusclassic_detect(struct snd_gus_card *gus)
 	return 0;
 }
 
-static int __devinit snd_gusclassic_probe(struct device *dev, unsigned int n)
+static int snd_gusclassic_probe(struct device *dev, unsigned int n)
 {
 	struct snd_card *card;
 	struct snd_gus_card *gus;
diff --git a/sound/isa/gus/gusextreme.c b/sound/isa/gus/gusextreme.c
index 3d76215..e8ee416 100644
--- a/sound/isa/gus/gusextreme.c
+++ b/sound/isa/gus/gusextreme.c
@@ -89,12 +89,12 @@ MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver.");
 module_param_array(pcm_channels, int, NULL, 0444);
 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver.");
 
-static int __devinit snd_gusextreme_match(struct device *dev, unsigned int n)
+static int snd_gusextreme_match(struct device *dev, unsigned int n)
 {
 	return enable[n];
 }
 
-static int __devinit snd_gusextreme_es1688_create(struct snd_card *card,
+static int snd_gusextreme_es1688_create(struct snd_card *card,
 		struct snd_es1688 *chip, struct device *dev, unsigned int n)
 {
 	static long possible_ports[] = {0x220, 0x240, 0x260};
@@ -132,7 +132,7 @@ static int __devinit snd_gusextreme_es1688_create(struct snd_card *card,
 	return error;
 }
 
-static int __devinit snd_gusextreme_gus_card_create(struct snd_card *card,
+static int snd_gusextreme_gus_card_create(struct snd_card *card,
 		struct device *dev, unsigned int n, struct snd_gus_card **rgus)
 {
 	static int possible_irqs[] = {11, 12, 15, 9, 5, 7, 3, -1};
@@ -156,7 +156,7 @@ static int __devinit snd_gusextreme_gus_card_create(struct snd_card *card,
 			0, channels[n], pcm_channels[n], 0, rgus);
 }
 
-static int __devinit snd_gusextreme_detect(struct snd_gus_card *gus,
+static int snd_gusextreme_detect(struct snd_gus_card *gus,
 	struct snd_es1688 *es1688)
 {
 	unsigned long flags;
@@ -206,7 +206,7 @@ static int __devinit snd_gusextreme_detect(struct snd_gus_card *gus,
 	return 0;
 }
 
-static int __devinit snd_gusextreme_mixer(struct snd_card *card)
+static int snd_gusextreme_mixer(struct snd_card *card)
 {
 	struct snd_ctl_elem_id id1, id2;
 	int error;
@@ -232,7 +232,7 @@ static int __devinit snd_gusextreme_mixer(struct snd_card *card)
 	return 0;
 }
 
-static int __devinit snd_gusextreme_probe(struct device *dev, unsigned int n)
+static int snd_gusextreme_probe(struct device *dev, unsigned int n)
 {
 	struct snd_card *card;
 	struct snd_gus_card *gus;
diff --git a/sound/isa/gus/gusmax.c b/sound/isa/gus/gusmax.c
index fefd5ae..6e297c8 100644
--- a/sound/isa/gus/gusmax.c
+++ b/sound/isa/gus/gusmax.c
@@ -82,7 +82,7 @@ struct snd_gusmax {
 
 #define PFX	"gusmax: "
 
-static int __devinit snd_gusmax_detect(struct snd_gus_card * gus)
+static int snd_gusmax_detect(struct snd_gus_card * gus)
 {
 	unsigned char d;
 
@@ -124,7 +124,7 @@ static irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id)
 	return IRQ_RETVAL(handled);
 }
 
-static void __devinit snd_gusmax_init(int dev, struct snd_card *card,
+static void snd_gusmax_init(int dev, struct snd_card *card,
 				      struct snd_gus_card * gus)
 {
 	gus->equal_irq = 1;
@@ -140,7 +140,7 @@ static void __devinit snd_gusmax_init(int dev, struct snd_card *card,
 	outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT));
 }
 
-static int __devinit snd_gusmax_mixer(struct snd_wss *chip)
+static int snd_gusmax_mixer(struct snd_wss *chip)
 {
 	struct snd_card *card = chip->card;
 	struct snd_ctl_elem_id id1, id2;
@@ -199,12 +199,12 @@ static void snd_gusmax_free(struct snd_card *card)
 		free_irq(maxcard->irq, (void *)maxcard);
 }
 
-static int __devinit snd_gusmax_match(struct device *pdev, unsigned int dev)
+static int snd_gusmax_match(struct device *pdev, unsigned int dev)
 {
 	return enable[dev];
 }
 
-static int __devinit snd_gusmax_probe(struct device *pdev, unsigned int dev)
+static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
 {
 	static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1};
 	static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
diff --git a/sound/isa/gus/interwave.c b/sound/isa/gus/interwave.c
index c61a74c..b5f436a 100644
--- a/sound/isa/gus/interwave.c
+++ b/sound/isa/gus/interwave.c
@@ -207,7 +207,7 @@ static struct snd_i2c_bit_ops snd_interwave_i2c_bit_ops = {
 	.getdata  = snd_interwave_i2c_getdataline,
 };
 
-static int __devinit snd_interwave_detect_stb(struct snd_interwave *iwcard,
+static int snd_interwave_detect_stb(struct snd_interwave *iwcard,
 					      struct snd_gus_card * gus, int dev,
 					      struct snd_i2c_bus **rbus)
 {
@@ -249,7 +249,7 @@ static int __devinit snd_interwave_detect_stb(struct snd_interwave *iwcard,
 }
 #endif
 
-static int __devinit snd_interwave_detect(struct snd_interwave *iwcard,
+static int snd_interwave_detect(struct snd_interwave *iwcard,
 				          struct snd_gus_card * gus,
 				          int dev
 #ifdef SNDRV_STB
@@ -318,7 +318,7 @@ static irqreturn_t snd_interwave_interrupt(int irq, void *dev_id)
 	return IRQ_RETVAL(handled);
 }
 
-static void __devinit snd_interwave_reset(struct snd_gus_card * gus)
+static void snd_interwave_reset(struct snd_gus_card * gus)
 {
 	snd_gf1_write8(gus, SNDRV_GF1_GB_RESET, 0x00);
 	udelay(160);
@@ -326,7 +326,7 @@ static void __devinit snd_interwave_reset(struct snd_gus_card * gus)
 	udelay(160);
 }
 
-static void __devinit snd_interwave_bank_sizes(struct snd_gus_card * gus, int *sizes)
+static void snd_interwave_bank_sizes(struct snd_gus_card * gus, int *sizes)
 {
 	unsigned int idx;
 	unsigned int local;
@@ -377,7 +377,7 @@ struct rom_hdr {
 	/* 511 */ unsigned char csum;
 };
 
-static void __devinit snd_interwave_detect_memory(struct snd_gus_card * gus)
+static void snd_interwave_detect_memory(struct snd_gus_card * gus)
 {
 	static unsigned int lmc[13] =
 	{
@@ -475,7 +475,7 @@ static void __devinit snd_interwave_detect_memory(struct snd_gus_card * gus)
 		snd_interwave_reset(gus);
 }
 
-static void __devinit snd_interwave_init(int dev, struct snd_gus_card * gus)
+static void snd_interwave_init(int dev, struct snd_gus_card * gus)
 {
 	unsigned long flags;
 
@@ -508,7 +508,7 @@ WSS_DOUBLE("Mic Playback Volume", 0,
 		CS4231_LEFT_MIC_INPUT, CS4231_RIGHT_MIC_INPUT, 0, 0, 31, 1)
 };
 
-static int __devinit snd_interwave_mixer(struct snd_wss *chip)
+static int snd_interwave_mixer(struct snd_wss *chip)
 {
 	struct snd_card *card = chip->card;
 	struct snd_ctl_elem_id id1, id2;
@@ -558,7 +558,7 @@ static int __devinit snd_interwave_mixer(struct snd_wss *chip)
 
 #ifdef CONFIG_PNP
 
-static int __devinit snd_interwave_pnp(int dev, struct snd_interwave *iwcard,
+static int snd_interwave_pnp(int dev, struct snd_interwave *iwcard,
 				       struct pnp_card_link *card,
 				       const struct pnp_card_device_id *id)
 {
@@ -644,7 +644,7 @@ static int snd_interwave_card_new(int dev, struct snd_card **cardp)
 	return 0;
 }
 
-static int __devinit snd_interwave_probe(struct snd_card *card, int dev)
+static int snd_interwave_probe(struct snd_card *card, int dev)
 {
 	int xirq, xdma1, xdma2;
 	struct snd_interwave *iwcard = card->private_data;
@@ -775,7 +775,7 @@ static int __devinit snd_interwave_probe(struct snd_card *card, int dev)
 	return 0;
 }
 
-static int __devinit snd_interwave_isa_probe1(int dev, struct device *devptr)
+static int snd_interwave_isa_probe1(int dev, struct device *devptr)
 {
 	struct snd_card *card;
 	int err;
@@ -793,7 +793,7 @@ static int __devinit snd_interwave_isa_probe1(int dev, struct device *devptr)
 	return 0;
 }
 
-static int __devinit snd_interwave_isa_match(struct device *pdev,
+static int snd_interwave_isa_match(struct device *pdev,
 					     unsigned int dev)
 {
 	if (!enable[dev])
@@ -805,7 +805,7 @@ static int __devinit snd_interwave_isa_match(struct device *pdev,
 	return 1;
 }
 
-static int __devinit snd_interwave_isa_probe(struct device *pdev,
+static int snd_interwave_isa_probe(struct device *pdev,
 					     unsigned int dev)
 {
 	int err;
@@ -864,7 +864,7 @@ static struct isa_driver snd_interwave_driver = {
 };
 
 #ifdef CONFIG_PNP
-static int __devinit snd_interwave_pnp_detect(struct pnp_card_link *pcard,
+static int snd_interwave_pnp_detect(struct pnp_card_link *pcard,
 					      const struct pnp_card_device_id *pid)
 {
 	static int dev;
diff --git a/sound/isa/msnd/msnd.h b/sound/isa/msnd/msnd.h
index a168ba3..dbac3a4 100644
--- a/sound/isa/msnd/msnd.h
+++ b/sound/isa/msnd/msnd.h
@@ -303,6 +303,6 @@ int snd_msndmidi_new(struct snd_card *card, int device);
 void snd_msndmidi_input_read(void *mpu);
 
 void snd_msndmix_setup(struct snd_msnd *chip);
-int __devinit snd_msndmix_new(struct snd_card *card);
+int snd_msndmix_new(struct snd_card *card);
 int snd_msndmix_force_recsrc(struct snd_msnd *chip, int recsrc);
 #endif /* __MSND_H */
diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c
index 93cafbe..75f297e 100644
--- a/sound/isa/msnd/msnd_pinnacle.c
+++ b/sound/isa/msnd/msnd_pinnacle.c
@@ -78,7 +78,7 @@
 #  define LOGNAME			"snd_msnd_pinnacle"
 #endif
 
-static void __devinit set_default_audio_parameters(struct snd_msnd *chip)
+static void set_default_audio_parameters(struct snd_msnd *chip)
 {
 	chip->play_sample_size = DEFSAMPLESIZE;
 	chip->play_sample_rate = DEFSAMPLERATE;
@@ -213,7 +213,7 @@ static int snd_msnd_reset_dsp(long io, unsigned char *info)
 	return -EIO;
 }
 
-static int __devinit snd_msnd_probe(struct snd_card *card)
+static int snd_msnd_probe(struct snd_card *card)
 {
 	struct snd_msnd *chip = card->private_data;
 	unsigned char info;
@@ -497,7 +497,7 @@ static int snd_msnd_send_dsp_cmd_chk(struct snd_msnd *chip, u8 cmd)
 	return snd_msnd_send_dsp_cmd(chip, cmd);
 }
 
-static int __devinit snd_msnd_calibrate_adc(struct snd_msnd *chip, u16 srate)
+static int snd_msnd_calibrate_adc(struct snd_msnd *chip, u16 srate)
 {
 	snd_printdd("snd_msnd_calibrate_adc(%i)\n", srate);
 	writew(srate, chip->SMA + SMA_wCalFreqAtoD);
@@ -535,7 +535,7 @@ static void snd_msnd_mpu401_close(struct snd_mpu401 *mpu)
 static long mpu_io[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
 
-static int __devinit snd_msnd_attach(struct snd_card *card)
+static int snd_msnd_attach(struct snd_card *card)
 {
 	struct snd_msnd *chip = card->private_data;
 	int err;
@@ -649,7 +649,7 @@ static void __devexit snd_msnd_unload(struct snd_card *card)
 
 /* Pinnacle/Fiji Logical Device Configuration */
 
-static int __devinit snd_msnd_write_cfg(int cfg, int reg, int value)
+static int snd_msnd_write_cfg(int cfg, int reg, int value)
 {
 	outb(reg, cfg);
 	outb(value, cfg + 1);
@@ -660,7 +660,7 @@ static int __devinit snd_msnd_write_cfg(int cfg, int reg, int value)
 	return 0;
 }
 
-static int __devinit snd_msnd_write_cfg_io0(int cfg, int num, u16 io)
+static int snd_msnd_write_cfg_io0(int cfg, int num, u16 io)
 {
 	if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
 		return -EIO;
@@ -671,7 +671,7 @@ static int __devinit snd_msnd_write_cfg_io0(int cfg, int num, u16 io)
 	return 0;
 }
 
-static int __devinit snd_msnd_write_cfg_io1(int cfg, int num, u16 io)
+static int snd_msnd_write_cfg_io1(int cfg, int num, u16 io)
 {
 	if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
 		return -EIO;
@@ -682,7 +682,7 @@ static int __devinit snd_msnd_write_cfg_io1(int cfg, int num, u16 io)
 	return 0;
 }
 
-static int __devinit snd_msnd_write_cfg_irq(int cfg, int num, u16 irq)
+static int snd_msnd_write_cfg_irq(int cfg, int num, u16 irq)
 {
 	if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
 		return -EIO;
@@ -693,7 +693,7 @@ static int __devinit snd_msnd_write_cfg_irq(int cfg, int num, u16 irq)
 	return 0;
 }
 
-static int __devinit snd_msnd_write_cfg_mem(int cfg, int num, int mem)
+static int snd_msnd_write_cfg_mem(int cfg, int num, int mem)
 {
 	u16 wmem;
 
@@ -711,7 +711,7 @@ static int __devinit snd_msnd_write_cfg_mem(int cfg, int num, int mem)
 	return 0;
 }
 
-static int __devinit snd_msnd_activate_logical(int cfg, int num)
+static int snd_msnd_activate_logical(int cfg, int num)
 {
 	if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
 		return -EIO;
@@ -720,7 +720,7 @@ static int __devinit snd_msnd_activate_logical(int cfg, int num)
 	return 0;
 }
 
-static int __devinit snd_msnd_write_cfg_logical(int cfg, int num, u16 io0,
+static int snd_msnd_write_cfg_logical(int cfg, int num, u16 io0,
 						u16 io1, u16 irq, int mem)
 {
 	if (snd_msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
@@ -738,7 +738,7 @@ static int __devinit snd_msnd_write_cfg_logical(int cfg, int num, u16 io0,
 	return 0;
 }
 
-static int __devinit snd_msnd_pinnacle_cfg_reset(int cfg)
+static int snd_msnd_pinnacle_cfg_reset(int cfg)
 {
 	int i;
 
@@ -818,7 +818,7 @@ module_param_array(joystick_io, long, NULL, S_IRUGO);
 #endif
 
 
-static int __devinit snd_msnd_isa_match(struct device *pdev, unsigned int i)
+static int snd_msnd_isa_match(struct device *pdev, unsigned int i)
 {
 	if (io[i] == SNDRV_AUTO_PORT)
 		return 0;
@@ -888,7 +888,7 @@ static int __devinit snd_msnd_isa_match(struct device *pdev, unsigned int i)
 	return 1;
 }
 
-static int __devinit snd_msnd_isa_probe(struct device *pdev, unsigned int idx)
+static int snd_msnd_isa_probe(struct device *pdev, unsigned int idx)
 {
 	int err;
 	struct snd_card *card;
@@ -1081,7 +1081,7 @@ static struct isa_driver snd_msnd_driver = {
 };
 
 #ifdef CONFIG_PNP
-static int __devinit snd_msnd_pnp_detect(struct pnp_card_link *pcard,
+static int snd_msnd_pnp_detect(struct pnp_card_link *pcard,
 					 const struct pnp_card_device_id *pid)
 {
 	static int idx;
diff --git a/sound/isa/msnd/msnd_pinnacle_mixer.c b/sound/isa/msnd/msnd_pinnacle_mixer.c
index 1de59d4..031dc69 100644
--- a/sound/isa/msnd/msnd_pinnacle_mixer.c
+++ b/sound/isa/msnd/msnd_pinnacle_mixer.c
@@ -302,7 +302,7 @@ DUMMY_VOLUME("Monitor",	0, MSND_MIXER_IMIX),
 };
 
 
-int __devinit snd_msndmix_new(struct snd_card *card)
+int snd_msndmix_new(struct snd_card *card)
 {
 	struct snd_msnd *chip = card->private_data;
 	unsigned int idx;
diff --git a/sound/isa/opl3sa2.c b/sound/isa/opl3sa2.c
index 99855d5..9f71f956 100644
--- a/sound/isa/opl3sa2.c
+++ b/sound/isa/opl3sa2.c
@@ -221,7 +221,7 @@ static void snd_opl3sa2_write(struct snd_opl3sa2 *chip, unsigned char reg, unsig
 	spin_unlock_irqrestore(&chip->reg_lock, flags);
 }
 
-static int __devinit snd_opl3sa2_detect(struct snd_card *card)
+static int snd_opl3sa2_detect(struct snd_card *card)
 {
 	struct snd_opl3sa2 *chip = card->private_data;
 	unsigned long port;
@@ -496,7 +496,7 @@ static void snd_opl3sa2_master_free(struct snd_kcontrol *kcontrol)
 	chip->master_volume = NULL;
 }
 
-static int __devinit snd_opl3sa2_mixer(struct snd_card *card)
+static int snd_opl3sa2_mixer(struct snd_card *card)
 {
 	struct snd_opl3sa2 *chip = card->private_data;
 	struct snd_ctl_elem_id id1, id2;
@@ -596,7 +596,7 @@ static int snd_opl3sa2_resume(struct snd_card *card)
 #endif /* CONFIG_PM */
 
 #ifdef CONFIG_PNP
-static int __devinit snd_opl3sa2_pnp(int dev, struct snd_opl3sa2 *chip,
+static int snd_opl3sa2_pnp(int dev, struct snd_opl3sa2 *chip,
 				     struct pnp_dev *pdev)
 {
 	if (pnp_activate_dev(pdev) < 0) {
@@ -647,7 +647,7 @@ static int snd_opl3sa2_card_new(int dev, struct snd_card **cardp)
 	return 0;
 }
 
-static int __devinit snd_opl3sa2_probe(struct snd_card *card, int dev)
+static int snd_opl3sa2_probe(struct snd_card *card, int dev)
 {
 	int xirq, xdma1, xdma2;
 	struct snd_opl3sa2 *chip;
@@ -721,7 +721,7 @@ static int __devinit snd_opl3sa2_probe(struct snd_card *card, int dev)
 }
 
 #ifdef CONFIG_PNP
-static int __devinit snd_opl3sa2_pnp_detect(struct pnp_dev *pdev,
+static int snd_opl3sa2_pnp_detect(struct pnp_dev *pdev,
 					    const struct pnp_device_id *id)
 {
 	static int dev;
@@ -782,7 +782,7 @@ static struct pnp_driver opl3sa2_pnp_driver = {
 #endif
 };
 
-static int __devinit snd_opl3sa2_pnp_cdetect(struct pnp_card_link *pcard,
+static int snd_opl3sa2_pnp_cdetect(struct pnp_card_link *pcard,
 					     const struct pnp_card_device_id *id)
 {
 	static int dev;
@@ -850,7 +850,7 @@ static struct pnp_card_driver opl3sa2_pnpc_driver = {
 };
 #endif /* CONFIG_PNP */
 
-static int __devinit snd_opl3sa2_isa_match(struct device *pdev,
+static int snd_opl3sa2_isa_match(struct device *pdev,
 					   unsigned int dev)
 {
 	if (!enable[dev])
@@ -878,7 +878,7 @@ static int __devinit snd_opl3sa2_isa_match(struct device *pdev,
 	return 1;
 }
 
-static int __devinit snd_opl3sa2_isa_probe(struct device *pdev,
+static int snd_opl3sa2_isa_probe(struct device *pdev,
 					   unsigned int dev)
 {
 	struct snd_card *card;
diff --git a/sound/isa/opti9xx/miro.c b/sound/isa/opti9xx/miro.c
index cb8c930..25418dd 100644
--- a/sound/isa/opti9xx/miro.c
+++ b/sound/isa/opti9xx/miro.c
@@ -670,7 +670,7 @@ static unsigned char aci_init_values[][2] __devinitdata = {
 	{ ACI_SET_MASTER + 1, 0x20 },
 };
 
-static int __devinit snd_set_aci_init_values(struct snd_miro *miro)
+static int snd_set_aci_init_values(struct snd_miro *miro)
 {
 	int idx, error;
 	struct snd_miro_aci *aci = miro->aci;
@@ -713,7 +713,7 @@ static int __devinit snd_set_aci_init_values(struct snd_miro *miro)
 	return 0;
 }
 
-static int __devinit snd_miro_mixer(struct snd_card *card,
+static int snd_miro_mixer(struct snd_card *card,
 				    struct snd_miro *miro)
 {
 	unsigned int idx;
@@ -771,7 +771,7 @@ static int __devinit snd_miro_mixer(struct snd_card *card,
 	return 0;
 }
 
-static int __devinit snd_miro_init(struct snd_miro *chip,
+static int snd_miro_init(struct snd_miro *chip,
 				   unsigned short hardware)
 {
 	static int opti9xx_mc_size[] = {7, 7, 10, 10, 2, 2, 2};
@@ -989,7 +989,7 @@ static void snd_miro_proc_read(struct snd_info_entry * entry,
 	snd_iprintf(buffer, "  preamp  : 0x%x\n", aci->aci_preamp);
 }
 
-static void __devinit snd_miro_proc_init(struct snd_card *card,
+static void snd_miro_proc_init(struct snd_card *card,
 					 struct snd_miro *miro)
 {
 	struct snd_info_entry *entry;
@@ -1002,7 +1002,7 @@ static void __devinit snd_miro_proc_init(struct snd_card *card,
  *  Init
  */
 
-static int __devinit snd_miro_configure(struct snd_miro *chip)
+static int snd_miro_configure(struct snd_miro *chip)
 {
 	unsigned char wss_base_bits;
 	unsigned char irq_bits;
@@ -1162,7 +1162,7 @@ __skip_mpu:
 	return 0;
 }
 
-static int __devinit snd_miro_opti_check(struct snd_miro *chip)
+static int snd_miro_opti_check(struct snd_miro *chip)
 {
 	unsigned char value;
 
@@ -1182,7 +1182,7 @@ static int __devinit snd_miro_opti_check(struct snd_miro *chip)
 	return -ENODEV;
 }
 
-static int __devinit snd_card_miro_detect(struct snd_card *card,
+static int snd_card_miro_detect(struct snd_card *card,
 					  struct snd_miro *chip)
 {
 	int i, err;
@@ -1200,7 +1200,7 @@ static int __devinit snd_card_miro_detect(struct snd_card *card,
 	return -ENODEV;
 }
 
-static int __devinit snd_card_miro_aci_detect(struct snd_card *card,
+static int snd_card_miro_aci_detect(struct snd_card *card,
 					      struct snd_miro *miro)
 {
 	unsigned char regval;
@@ -1265,7 +1265,7 @@ static void snd_card_miro_free(struct snd_card *card)
 	release_and_free_resource(miro->res_mc_base);
 }
 
-static int __devinit snd_miro_probe(struct snd_card *card)
+static int snd_miro_probe(struct snd_card *card)
 {
 	int error;
 	struct snd_miro *miro = card->private_data;
@@ -1386,7 +1386,7 @@ static int __devinit snd_miro_probe(struct snd_card *card)
 	return snd_card_register(card);
 }
 
-static int __devinit snd_miro_isa_match(struct device *devptr, unsigned int n)
+static int snd_miro_isa_match(struct device *devptr, unsigned int n)
 {
 #ifdef CONFIG_PNP
 	if (snd_miro_pnp_is_probed)
@@ -1397,7 +1397,7 @@ static int __devinit snd_miro_isa_match(struct device *devptr, unsigned int n)
 	return 1;
 }
 
-static int __devinit snd_miro_isa_probe(struct device *devptr, unsigned int n)
+static int snd_miro_isa_probe(struct device *devptr, unsigned int n)
 {
 	static long possible_ports[] = {0x530, 0xe80, 0xf40, 0x604, -1};
 	static long possible_mpu_ports[] = {0x330, 0x300, 0x310, 0x320, -1};
@@ -1513,7 +1513,7 @@ static struct isa_driver snd_miro_driver = {
 
 #ifdef CONFIG_PNP
 
-static int __devinit snd_card_miro_pnp(struct snd_miro *chip,
+static int snd_card_miro_pnp(struct snd_miro *chip,
 					struct pnp_card_link *card,
 					const struct pnp_card_device_id *pid)
 {
@@ -1574,7 +1574,7 @@ static int __devinit snd_card_miro_pnp(struct snd_miro *chip,
 	return 0;
 }
 
-static int __devinit snd_miro_pnp_probe(struct pnp_card_link *pcard,
+static int snd_miro_pnp_probe(struct pnp_card_link *pcard,
 					const struct pnp_card_device_id *pid)
 {
 	struct snd_card *card;
diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index 72b1769..4a0d193 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -186,7 +186,7 @@ static char * snd_opti9xx_names[] = {
 	"82C930",	"82C931",	"82C933"
 };
 
-static int __devinit snd_opti9xx_init(struct snd_opti9xx *chip,
+static int snd_opti9xx_init(struct snd_opti9xx *chip,
 				      unsigned short hardware)
 {
 	static int opti9xx_mc_size[] = {7, 7, 10, 10, 2, 2, 2};
@@ -593,7 +593,7 @@ WSS_DOUBLE_TLV("Aux Playback Volume", 0,
 		db_scale_4bit_12db_max),
 };
 
-static int __devinit snd_opti93x_mixer(struct snd_wss *chip)
+static int snd_opti93x_mixer(struct snd_wss *chip)
 {
 	struct snd_card *card;
 	unsigned int idx;
@@ -666,7 +666,7 @@ static irqreturn_t snd_opti93x_interrupt(int irq, void *dev_id)
 
 #endif /* OPTi93X */
 
-static int __devinit snd_opti9xx_read_check(struct snd_opti9xx *chip)
+static int snd_opti9xx_read_check(struct snd_opti9xx *chip)
 {
 	unsigned char value;
 #ifdef OPTi93X
@@ -707,7 +707,7 @@ static int __devinit snd_opti9xx_read_check(struct snd_opti9xx *chip)
 	return -ENODEV;
 }
 
-static int __devinit snd_card_opti9xx_detect(struct snd_card *card,
+static int snd_card_opti9xx_detect(struct snd_card *card,
 					     struct snd_opti9xx *chip)
 {
 	int i, err;
@@ -732,7 +732,7 @@ static int __devinit snd_card_opti9xx_detect(struct snd_card *card,
 }
 
 #ifdef CONFIG_PNP
-static int __devinit snd_card_opti9xx_pnp(struct snd_opti9xx *chip,
+static int snd_card_opti9xx_pnp(struct snd_opti9xx *chip,
 					  struct pnp_card_link *card,
 					  const struct pnp_card_device_id *pid)
 {
@@ -817,7 +817,7 @@ static void snd_card_opti9xx_free(struct snd_card *card)
 	}
 }
 
-static int __devinit snd_opti9xx_probe(struct snd_card *card)
+static int snd_opti9xx_probe(struct snd_card *card)
 {
 	static long possible_ports[] = {0x530, 0xe80, 0xf40, 0x604, -1};
 	int error;
@@ -952,7 +952,7 @@ static int snd_opti9xx_card_new(struct snd_card **cardp)
 	return 0;
 }
 
-static int __devinit snd_opti9xx_isa_match(struct device *devptr,
+static int snd_opti9xx_isa_match(struct device *devptr,
 					   unsigned int dev)
 {
 #ifdef CONFIG_PNP
@@ -964,7 +964,7 @@ static int __devinit snd_opti9xx_isa_match(struct device *devptr,
 	return 1;
 }
 
-static int __devinit snd_opti9xx_isa_probe(struct device *devptr,
+static int snd_opti9xx_isa_probe(struct device *devptr,
 					   unsigned int dev)
 {
 	struct snd_card *card;
@@ -1094,7 +1094,7 @@ static struct isa_driver snd_opti9xx_driver = {
 };
 
 #ifdef CONFIG_PNP
-static int __devinit snd_opti9xx_pnp_probe(struct pnp_card_link *pcard,
+static int snd_opti9xx_pnp_probe(struct pnp_card_link *pcard,
 					   const struct pnp_card_device_id *pid)
 {
 	struct snd_card *card;
diff --git a/sound/isa/sb/emu8000.c b/sound/isa/sb/emu8000.c
index 2aae6a0..3456c92 100644
--- a/sound/isa/sb/emu8000.c
+++ b/sound/isa/sb/emu8000.c
@@ -131,8 +131,7 @@ snd_emu8000_dma_chan(struct snd_emu8000 *emu, int ch, int mode)
 
 /*
  */
-static void __devinit
-snd_emu8000_read_wait(struct snd_emu8000 *emu)
+static void snd_emu8000_read_wait(struct snd_emu8000 *emu)
 {
 	while ((EMU8000_SMALR_READ(emu) & 0x80000000) != 0) {
 		schedule_timeout_interruptible(1);
@@ -143,8 +142,7 @@ snd_emu8000_read_wait(struct snd_emu8000 *emu)
 
 /*
  */
-static void __devinit
-snd_emu8000_write_wait(struct snd_emu8000 *emu)
+static void snd_emu8000_write_wait(struct snd_emu8000 *emu)
 {
 	while ((EMU8000_SMALW_READ(emu) & 0x80000000) != 0) {
 		schedule_timeout_interruptible(1);
@@ -156,8 +154,7 @@ snd_emu8000_write_wait(struct snd_emu8000 *emu)
 /*
  * detect a card at the given port
  */
-static int __devinit
-snd_emu8000_detect(struct snd_emu8000 *emu)
+static int snd_emu8000_detect(struct snd_emu8000 *emu)
 {
 	/* Initialise */
 	EMU8000_HWCF1_WRITE(emu, 0x0059);
@@ -182,8 +179,7 @@ snd_emu8000_detect(struct snd_emu8000 *emu)
 /*
  * intiailize audio channels
  */
-static void __devinit
-init_audio(struct snd_emu8000 *emu)
+static void init_audio(struct snd_emu8000 *emu)
 {
 	int ch;
 
@@ -223,8 +219,7 @@ init_audio(struct snd_emu8000 *emu)
 /*
  * initialize DMA address
  */
-static void __devinit
-init_dma(struct snd_emu8000 *emu)
+static void init_dma(struct snd_emu8000 *emu)
 {
 	EMU8000_SMALR_WRITE(emu, 0);
 	EMU8000_SMARR_WRITE(emu, 0);
@@ -327,8 +322,7 @@ static unsigned short init4[128] /*__devinitdata*/ = {
  * Taken from the oss driver, not obvious from the doc how this
  * is meant to work
  */
-static void __devinit
-send_array(struct snd_emu8000 *emu, unsigned short *data, int size)
+static void send_array(struct snd_emu8000 *emu, unsigned short *data, int size)
 {
 	int i;
 	unsigned short *p;
@@ -349,8 +343,7 @@ send_array(struct snd_emu8000 *emu, unsigned short *data, int size)
  * Send initialization arrays to start up, this just follows the
  * initialisation sequence in the adip.
  */
-static void __devinit
-init_arrays(struct snd_emu8000 *emu)
+static void init_arrays(struct snd_emu8000 *emu)
 {
 	send_array(emu, init1, ARRAY_SIZE(init1)/4);
 
@@ -375,8 +368,7 @@ init_arrays(struct snd_emu8000 *emu)
  * seems that the only way to do this is to use the one channel and keep
  * reallocating between read and write.
  */
-static void __devinit
-size_dram(struct snd_emu8000 *emu)
+static void size_dram(struct snd_emu8000 *emu)
 {
 	int i, size, detected_size;
 
@@ -512,8 +504,7 @@ snd_emu8000_init_fm(struct snd_emu8000 *emu)
 /*
  * The main initialization routine.
  */
-static void __devinit
-snd_emu8000_init_hw(struct snd_emu8000 *emu)
+static void snd_emu8000_init_hw(struct snd_emu8000 *emu)
 {
 	int i;
 
@@ -1031,8 +1022,7 @@ static struct snd_kcontrol_new *mixer_defs[EMU8000_NUM_CONTROLS] = {
 /*
  * create and attach mixer elements for WaveTable treble/bass controls
  */
-static int __devinit
-snd_emu8000_create_mixer(struct snd_card *card, struct snd_emu8000 *emu)
+static int snd_emu8000_create_mixer(struct snd_card *card, struct snd_emu8000 *emu)
 {
 	int i, err = 0;
 
@@ -1082,8 +1072,7 @@ static int snd_emu8000_dev_free(struct snd_device *device)
 /*
  * initialize and register emu8000 synth device.
  */
-int __devinit
-snd_emu8000_new(struct snd_card *card, int index, long port, int seq_ports,
+int snd_emu8000_new(struct snd_card *card, int index, long port, int seq_ports,
 		struct snd_seq_device **awe_ret)
 {
 	struct snd_seq_device *awe;
diff --git a/sound/isa/sb/jazz16.c b/sound/isa/sb/jazz16.c
index 529f175..5bc42fe 100644
--- a/sound/isa/sb/jazz16.c
+++ b/sound/isa/sb/jazz16.c
@@ -78,7 +78,7 @@ static irqreturn_t jazz16_interrupt(int irq, void *chip)
 	return snd_sb8dsp_interrupt(chip);
 }
 
-static int __devinit jazz16_configure_ports(unsigned long port,
+static int jazz16_configure_ports(unsigned long port,
 					    unsigned long mpu_port, int idx)
 {
 	unsigned char val;
@@ -99,7 +99,7 @@ static int __devinit jazz16_configure_ports(unsigned long port,
 	return 0;
 }
 
-static int __devinit jazz16_detect_board(unsigned long port,
+static int jazz16_detect_board(unsigned long port,
 					 unsigned long mpu_port)
 {
 	int err;
@@ -156,7 +156,7 @@ err_unmap:
 	return err;
 }
 
-static int __devinit jazz16_configure_board(struct snd_sb *chip, int mpu_irq)
+static int jazz16_configure_board(struct snd_sb *chip, int mpu_irq)
 {
 	static unsigned char jazz_irq_bits[] = { 0, 0, 2, 3, 0, 1, 0, 4,
 						 0, 2, 5, 0, 0, 0, 0, 6 };
@@ -183,7 +183,7 @@ static int __devinit jazz16_configure_board(struct snd_sb *chip, int mpu_irq)
 	return 0;
 }
 
-static int __devinit snd_jazz16_match(struct device *devptr, unsigned int dev)
+static int snd_jazz16_match(struct device *devptr, unsigned int dev)
 {
 	if (!enable[dev])
 		return 0;
@@ -218,7 +218,7 @@ static int __devinit snd_jazz16_match(struct device *devptr, unsigned int dev)
 	return 1;
 }
 
-static int __devinit snd_jazz16_probe(struct device *devptr, unsigned int dev)
+static int snd_jazz16_probe(struct device *devptr, unsigned int dev)
 {
 	struct snd_card *card;
 	struct snd_card_jazz16 *jazz16;
diff --git a/sound/isa/sb/sb16.c b/sound/isa/sb/sb16.c
index bb8a688..fcb14b8 100644
--- a/sound/isa/sb/sb16.c
+++ b/sound/isa/sb/sb16.c
@@ -250,7 +250,7 @@ MODULE_DEVICE_TABLE(pnp_card, snd_sb16_pnpids);
 
 #ifdef CONFIG_PNP
 
-static int __devinit snd_card_sb16_pnp(int dev, struct snd_card_sb16 *acard,
+static int snd_card_sb16_pnp(int dev, struct snd_card_sb16 *acard,
 				       struct pnp_card_link *card,
 				       const struct pnp_card_device_id *id)
 {
@@ -337,7 +337,7 @@ static int snd_sb16_card_new(int dev, struct snd_card **cardp)
 	return 0;
 }
 
-static int __devinit snd_sb16_probe(struct snd_card *card, int dev)
+static int snd_sb16_probe(struct snd_card *card, int dev)
 {
 	int xirq, xdma8, xdma16;
 	struct snd_sb *chip;
@@ -487,7 +487,7 @@ static int snd_sb16_resume(struct snd_card *card)
 }
 #endif
 
-static int __devinit snd_sb16_isa_probe1(int dev, struct device *pdev)
+static int snd_sb16_isa_probe1(int dev, struct device *pdev)
 {
 	struct snd_card_sb16 *acard;
 	struct snd_card *card;
@@ -517,12 +517,12 @@ static int __devinit snd_sb16_isa_probe1(int dev, struct device *pdev)
 }
 
 
-static int __devinit snd_sb16_isa_match(struct device *pdev, unsigned int dev)
+static int snd_sb16_isa_match(struct device *pdev, unsigned int dev)
 {
 	return enable[dev] && !is_isapnp_selected(dev);
 }
 
-static int __devinit snd_sb16_isa_probe(struct device *pdev, unsigned int dev)
+static int snd_sb16_isa_probe(struct device *pdev, unsigned int dev)
 {
 	int err;
 	static int possible_irqs[] = {5, 9, 10, 7, -1};
@@ -604,7 +604,7 @@ static struct isa_driver snd_sb16_isa_driver = {
 
 
 #ifdef CONFIG_PNP
-static int __devinit snd_sb16_pnp_detect(struct pnp_card_link *pcard,
+static int snd_sb16_pnp_detect(struct pnp_card_link *pcard,
 					 const struct pnp_card_device_id *pid)
 {
 	static int dev;
diff --git a/sound/isa/sb/sb8.c b/sound/isa/sb/sb8.c
index 0cc9a9a..69aa275 100644
--- a/sound/isa/sb/sb8.c
+++ b/sound/isa/sb/sb8.c
@@ -79,7 +79,7 @@ static void snd_sb8_free(struct snd_card *card)
 	release_and_free_resource(acard->fm_res);
 }
 
-static int __devinit snd_sb8_match(struct device *pdev, unsigned int dev)
+static int snd_sb8_match(struct device *pdev, unsigned int dev)
 {
 	if (!enable[dev])
 		return 0;
@@ -94,7 +94,7 @@ static int __devinit snd_sb8_match(struct device *pdev, unsigned int dev)
 	return 1;
 }
 
-static int __devinit snd_sb8_probe(struct device *pdev, unsigned int dev)
+static int snd_sb8_probe(struct device *pdev, unsigned int dev)
 {
 	struct snd_sb *chip;
 	struct snd_card *card;
diff --git a/sound/isa/sc6000.c b/sound/isa/sc6000.c
index 57266de..486da56 100644
--- a/sound/isa/sc6000.c
+++ b/sound/isa/sc6000.c
@@ -121,7 +121,7 @@ MODULE_PARM_DESC(joystick, "Enable gameport.");
 /*
  * sc6000_irq_to_softcfg - Decode irq number into cfg code.
  */
-static __devinit unsigned char sc6000_irq_to_softcfg(int irq)
+static unsigned char sc6000_irq_to_softcfg(int irq)
 {
 	unsigned char val = 0;
 
@@ -150,7 +150,7 @@ static __devinit unsigned char sc6000_irq_to_softcfg(int irq)
 /*
  * sc6000_dma_to_softcfg - Decode dma number into cfg code.
  */
-static __devinit unsigned char sc6000_dma_to_softcfg(int dma)
+static unsigned char sc6000_dma_to_softcfg(int dma)
 {
 	unsigned char val = 0;
 
@@ -173,7 +173,7 @@ static __devinit unsigned char sc6000_dma_to_softcfg(int dma)
 /*
  * sc6000_mpu_irq_to_softcfg - Decode MPU-401 irq number into cfg code.
  */
-static __devinit unsigned char sc6000_mpu_irq_to_softcfg(int mpu_irq)
+static unsigned char sc6000_mpu_irq_to_softcfg(int mpu_irq)
 {
 	unsigned char val = 0;
 
@@ -242,7 +242,7 @@ static int sc6000_write(char __iomem *vport, int cmd)
 	return -EIO;
 }
 
-static int __devinit sc6000_dsp_get_answer(char __iomem *vport, int command,
+static int sc6000_dsp_get_answer(char __iomem *vport, int command,
 					   char *data, int data_len)
 {
 	int len = 0;
@@ -269,7 +269,7 @@ static int __devinit sc6000_dsp_get_answer(char __iomem *vport, int command,
 	return len ? len : -EIO;
 }
 
-static int __devinit sc6000_dsp_reset(char __iomem *vport)
+static int sc6000_dsp_reset(char __iomem *vport)
 {
 	iowrite8(1, vport + DSP_RESET);
 	udelay(10);
@@ -281,7 +281,7 @@ static int __devinit sc6000_dsp_reset(char __iomem *vport)
 }
 
 /* detection and initialization */
-static int __devinit sc6000_hw_cfg_write(char __iomem *vport, const int *cfg)
+static int sc6000_hw_cfg_write(char __iomem *vport, const int *cfg)
 {
 	if (sc6000_write(vport, COMMAND_6C) < 0) {
 		snd_printk(KERN_WARNING "CMD 0x%x: failed!\n", COMMAND_6C);
@@ -345,7 +345,7 @@ static int sc6000_setup_board(char __iomem *vport, int config)
 	return 0;
 }
 
-static int __devinit sc6000_init_mss(char __iomem *vport, int config,
+static int sc6000_init_mss(char __iomem *vport, int config,
 				     char __iomem *vmss_port, int mss_config)
 {
 	if (sc6000_write(vport, DSP_INIT_MSS)) {
@@ -364,7 +364,7 @@ static int __devinit sc6000_init_mss(char __iomem *vport, int config,
 	return 0;
 }
 
-static void __devinit sc6000_hw_cfg_encode(char __iomem *vport, int *cfg,
+static void sc6000_hw_cfg_encode(char __iomem *vport, int *cfg,
 					   long xport, long xmpu,
 					   long xmss_port, int joystick)
 {
@@ -386,7 +386,7 @@ static void __devinit sc6000_hw_cfg_encode(char __iomem *vport, int *cfg,
 	snd_printd("hw cfg %x, %x\n", cfg[0], cfg[1]);
 }
 
-static int __devinit sc6000_init_board(char __iomem *vport,
+static int sc6000_init_board(char __iomem *vport,
 					char __iomem *vmss_port, int dev)
 {
 	char answer[15];
@@ -467,7 +467,7 @@ static int __devinit sc6000_init_board(char __iomem *vport,
 	return 0;
 }
 
-static int __devinit snd_sc6000_mixer(struct snd_wss *chip)
+static int snd_sc6000_mixer(struct snd_wss *chip)
 {
 	struct snd_card *card = chip->card;
 	struct snd_ctl_elem_id id1, id2;
@@ -502,7 +502,7 @@ static int __devinit snd_sc6000_mixer(struct snd_wss *chip)
 	return 0;
 }
 
-static int __devinit snd_sc6000_match(struct device *devptr, unsigned int dev)
+static int snd_sc6000_match(struct device *devptr, unsigned int dev)
 {
 	if (!enable[dev])
 		return 0;
@@ -545,7 +545,7 @@ static int __devinit snd_sc6000_match(struct device *devptr, unsigned int dev)
 	return 1;
 }
 
-static int __devinit snd_sc6000_probe(struct device *devptr, unsigned int dev)
+static int snd_sc6000_probe(struct device *devptr, unsigned int dev)
 {
 	static int possible_irqs[] = { 5, 7, 9, 10, 11, -1 };
 	static int possible_dmas[] = { 1, 3, 0, -1 };
diff --git a/sound/isa/sscape.c b/sound/isa/sscape.c
index eb8fe7f..0b67a79 100644
--- a/sound/isa/sscape.c
+++ b/sound/isa/sscape.c
@@ -683,7 +683,7 @@ static struct snd_kcontrol_new midi_mixer_ctl = {
  * These IRQs are encoded as bit patterns so that they can be
  * written to the control registers.
  */
-static unsigned __devinit get_irq_config(int sscape_type, int irq)
+static unsigned get_irq_config(int sscape_type, int irq)
 {
 	static const int valid_irq[] = { 9, 5, 7, 10 };
 	static const int old_irq[] = { 9, 7, 5, 15 };
@@ -706,7 +706,7 @@ static unsigned __devinit get_irq_config(int sscape_type, int irq)
  * Perform certain arcane port-checks to see whether there
  * is a SoundScape board lurking behind the given ports.
  */
-static int __devinit detect_sscape(struct soundscape *s, long wss_io)
+static int detect_sscape(struct soundscape *s, long wss_io)
 {
 	unsigned long flags;
 	unsigned d;
@@ -817,7 +817,7 @@ static int mpu401_open(struct snd_mpu401 *mpu)
 /*
  * Initialse an MPU-401 subdevice for MIDI support on the SoundScape.
  */
-static int __devinit create_mpu401(struct snd_card *card, int devnum,
+static int create_mpu401(struct snd_card *card, int devnum,
 				   unsigned long port, int irq)
 {
 	struct soundscape *sscape = get_card_soundscape(card);
@@ -845,7 +845,7 @@ static int __devinit create_mpu401(struct snd_card *card, int devnum,
  * try to support at least some of the extra bits by overriding
  * some of the CS4231 callback.
  */
-static int __devinit create_ad1845(struct snd_card *card, unsigned port,
+static int create_ad1845(struct snd_card *card, unsigned port,
 				   int irq, int dma1, int dma2)
 {
 	register struct soundscape *sscape = get_card_soundscape(card);
@@ -937,7 +937,7 @@ _error:
  * Create an ALSA soundcard entry for the SoundScape, using
  * the given list of port, IRQ and DMA resources.
  */
-static int __devinit create_sscape(int dev, struct snd_card *card)
+static int create_sscape(int dev, struct snd_card *card)
 {
 	struct soundscape *sscape = get_card_soundscape(card);
 	unsigned dma_cfg;
@@ -1143,7 +1143,7 @@ _release_region:
 }
 
 
-static int __devinit snd_sscape_match(struct device *pdev, unsigned int i)
+static int snd_sscape_match(struct device *pdev, unsigned int i)
 {
 	/*
 	 * Make sure we were given ALL of the other parameters.
@@ -1163,7 +1163,7 @@ static int __devinit snd_sscape_match(struct device *pdev, unsigned int i)
 	return 1;
 }
 
-static int __devinit snd_sscape_probe(struct device *pdev, unsigned int dev)
+static int snd_sscape_probe(struct device *pdev, unsigned int dev)
 {
 	struct snd_card *card;
 	struct soundscape *sscape;
@@ -1217,7 +1217,7 @@ static struct isa_driver snd_sscape_driver = {
 };
 
 #ifdef CONFIG_PNP
-static inline int __devinit get_next_autoindex(int i)
+static inline int get_next_autoindex(int i)
 {
 	while (i < SNDRV_CARDS && port[i] != SNDRV_AUTO_PORT)
 		++i;
@@ -1225,7 +1225,7 @@ static inline int __devinit get_next_autoindex(int i)
 }
 
 
-static int __devinit sscape_pnp_detect(struct pnp_card_link *pcard,
+static int sscape_pnp_detect(struct pnp_card_link *pcard,
 				       const struct pnp_card_device_id *pid)
 {
 	static int idx = 0;
diff --git a/sound/isa/wavefront/wavefront.c b/sound/isa/wavefront/wavefront.c
index d700ca9..abe3c34 100644
--- a/sound/isa/wavefront/wavefront.c
+++ b/sound/isa/wavefront/wavefront.c
@@ -98,8 +98,7 @@ static struct pnp_card_device_id snd_wavefront_pnpids[] = {
 
 MODULE_DEVICE_TABLE(pnp_card, snd_wavefront_pnpids);
 
-static int __devinit
-snd_wavefront_pnp (int dev, snd_wavefront_card_t *acard, struct pnp_card_link *card,
+static int snd_wavefront_pnp (int dev, snd_wavefront_card_t *acard, struct pnp_card_link *card,
 		   const struct pnp_card_device_id *id)
 {
 	struct pnp_dev *pdev;
@@ -231,8 +230,7 @@ static irqreturn_t snd_wavefront_ics2115_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static struct snd_hwdep * __devinit
-snd_wavefront_new_synth (struct snd_card *card,
+static struct snd_hwdep *snd_wavefront_new_synth (struct snd_card *card,
 			 int hw_dev,
 			 snd_wavefront_card_t *acard)
 {
@@ -257,8 +255,7 @@ snd_wavefront_new_synth (struct snd_card *card,
 	return wavefront_synth;
 }
 
-static struct snd_hwdep * __devinit
-snd_wavefront_new_fx (struct snd_card *card,
+static struct snd_hwdep *snd_wavefront_new_fx (struct snd_card *card,
 		      int hw_dev,
 		      snd_wavefront_card_t *acard,
 		      unsigned long port)
@@ -284,8 +281,7 @@ snd_wavefront_new_fx (struct snd_card *card,
 static snd_wavefront_mpu_id internal_id = internal_mpu;
 static snd_wavefront_mpu_id external_id = external_mpu;
 
-static struct snd_rawmidi *__devinit
-snd_wavefront_new_midi (struct snd_card *card,
+static struct snd_rawmidi *snd_wavefront_new_midi (struct snd_card *card,
 			int midi_dev,
 			snd_wavefront_card_t *acard,
 			unsigned long port,
@@ -361,8 +357,7 @@ static int snd_wavefront_card_new(int dev, struct snd_card **cardp)
 	return 0;
 }
 
-static int __devinit
-snd_wavefront_probe (struct snd_card *card, int dev)
+static int snd_wavefront_probe (struct snd_card *card, int dev)
 {
 	snd_wavefront_card_t *acard = card->private_data;
 	struct snd_wss *chip;
@@ -541,7 +536,7 @@ snd_wavefront_probe (struct snd_card *card, int dev)
 	return snd_card_register(card);
 }	
 
-static int __devinit snd_wavefront_isa_match(struct device *pdev,
+static int snd_wavefront_isa_match(struct device *pdev,
 					     unsigned int dev)
 {
 	if (!enable[dev])
@@ -561,7 +556,7 @@ static int __devinit snd_wavefront_isa_match(struct device *pdev,
 	return 1;
 }
 
-static int __devinit snd_wavefront_isa_probe(struct device *pdev,
+static int snd_wavefront_isa_probe(struct device *pdev,
 					     unsigned int dev)
 {
 	struct snd_card *card;
@@ -602,7 +597,7 @@ static struct isa_driver snd_wavefront_driver = {
 
 
 #ifdef CONFIG_PNP
-static int __devinit snd_wavefront_pnp_detect(struct pnp_card_link *pcard,
+static int snd_wavefront_pnp_detect(struct pnp_card_link *pcard,
 					const struct pnp_card_device_id *pid)
 {
 	static int dev;
diff --git a/sound/isa/wavefront/wavefront_fx.c b/sound/isa/wavefront/wavefront_fx.c
index e51e090..2d4fa4a 100644
--- a/sound/isa/wavefront/wavefront_fx.c
+++ b/sound/isa/wavefront/wavefront_fx.c
@@ -240,8 +240,7 @@ snd_wavefront_fx_ioctl (struct snd_hwdep *sdev, struct file *file,
    that outputs it.
 */
 
-int __devinit
-snd_wavefront_fx_start (snd_wavefront_t *dev)
+int snd_wavefront_fx_start (snd_wavefront_t *dev)
 {
 	unsigned int i;
 	int err;
diff --git a/sound/isa/wavefront/wavefront_midi.c b/sound/isa/wavefront/wavefront_midi.c
index 65329f3..faa2483 100644
--- a/sound/isa/wavefront/wavefront_midi.c
+++ b/sound/isa/wavefront/wavefront_midi.c
@@ -481,8 +481,7 @@ snd_wavefront_midi_disable_virtual (snd_wavefront_card_t *card)
 	spin_unlock_irqrestore (&card->wavefront.midi.virtual, flags);
 }
 
-int __devinit
-snd_wavefront_midi_start (snd_wavefront_card_t *card)
+int snd_wavefront_midi_start (snd_wavefront_card_t *card)
 
 {
 	int ok, i;
diff --git a/sound/isa/wavefront/wavefront_synth.c b/sound/isa/wavefront/wavefront_synth.c
index b1bf8d4..7345a87 100644
--- a/sound/isa/wavefront/wavefront_synth.c
+++ b/sound/isa/wavefront/wavefront_synth.c
@@ -1739,8 +1739,7 @@ snd_wavefront_internal_interrupt (snd_wavefront_card_t *card)
 7 Unused
 */
 
-static int __devinit
-snd_wavefront_interrupt_bits (int irq)
+static int snd_wavefront_interrupt_bits (int irq)
 
 {
 	int bits;
@@ -1767,8 +1766,7 @@ snd_wavefront_interrupt_bits (int irq)
 	return bits;
 }
 
-static void __devinit
-wavefront_should_cause_interrupt (snd_wavefront_t *dev, 
+static void wavefront_should_cause_interrupt (snd_wavefront_t *dev,
 				  int val, int port, unsigned long timeout)
 
 {
@@ -1786,8 +1784,7 @@ wavefront_should_cause_interrupt (snd_wavefront_t *dev,
 	}
 }
 
-static int __devinit
-wavefront_reset_to_cleanliness (snd_wavefront_t *dev)
+static int wavefront_reset_to_cleanliness (snd_wavefront_t *dev)
 
 {
 	int bits;
@@ -1937,8 +1934,7 @@ wavefront_reset_to_cleanliness (snd_wavefront_t *dev)
 	return (1);
 }
 
-static int __devinit
-wavefront_download_firmware (snd_wavefront_t *dev, char *path)
+static int wavefront_download_firmware (snd_wavefront_t *dev, char *path)
 
 {
 	const unsigned char *buf;
@@ -2010,8 +2006,7 @@ wavefront_download_firmware (snd_wavefront_t *dev, char *path)
 }
 
 
-static int __devinit
-wavefront_do_reset (snd_wavefront_t *dev)
+static int wavefront_do_reset (snd_wavefront_t *dev)
 
 {
 	char voices[1];
@@ -2099,8 +2094,7 @@ wavefront_do_reset (snd_wavefront_t *dev)
 	return 1;
 }
 
-int __devinit
-snd_wavefront_start (snd_wavefront_t *dev)
+int snd_wavefront_start (snd_wavefront_t *dev)
 
 {
 	int samples_are_from_rom;
@@ -2141,8 +2135,7 @@ snd_wavefront_start (snd_wavefront_t *dev)
 	return (0);
 }
 
-int __devinit
-snd_wavefront_detect (snd_wavefront_card_t *card)
+int snd_wavefront_detect (snd_wavefront_card_t *card)
 
 {
 	unsigned char   rbuf[4], wbuf[4];
diff --git a/sound/mips/au1x00.c b/sound/mips/au1x00.c
index 3f3ec0b..6110c12 100644
--- a/sound/mips/au1x00.c
+++ b/sound/mips/au1x00.c
@@ -439,8 +439,7 @@ static struct snd_pcm_ops snd_card_au1000_capture_ops = {
 	.pointer		= snd_au1000_pointer,
 };
 
-static int __devinit
-snd_au1000_pcm_new(struct snd_au1000 *au1000)
+static int snd_au1000_pcm_new(struct snd_au1000 *au1000)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -552,8 +551,7 @@ get the interrupt driven case to work efficiently */
 	spin_unlock(&au1000->ac97_lock);
 }
 
-static int __devinit
-snd_au1000_ac97_new(struct snd_au1000 *au1000)
+static int snd_au1000_ac97_new(struct snd_au1000 *au1000)
 {
 	int err;
 	struct snd_ac97_bus *pbus;
diff --git a/sound/mips/hal2.c b/sound/mips/hal2.c
index 0bd7fb5..0670a83 100644
--- a/sound/mips/hal2.c
+++ b/sound/mips/hal2.c
@@ -280,7 +280,7 @@ static struct snd_kcontrol_new hal2_ctrl_mic __devinitdata = {
 	.put            = hal2_gain_put,
 };
 
-static int __devinit hal2_mixer_create(struct snd_hal2 *hal2)
+static int hal2_mixer_create(struct snd_hal2 *hal2)
 {
 	int err;
 
@@ -733,7 +733,7 @@ static struct snd_pcm_ops hal2_capture_ops = {
 	.ack =         hal2_capture_ack,
 };
 
-static int __devinit hal2_pcm_create(struct snd_hal2 *hal2)
+static int hal2_pcm_create(struct snd_hal2 *hal2)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -874,7 +874,7 @@ static int hal2_create(struct snd_card *card, struct snd_hal2 **rchip)
 	return 0;
 }
 
-static int __devinit hal2_probe(struct platform_device *pdev)
+static int hal2_probe(struct platform_device *pdev)
 {
 	struct snd_card *card;
 	struct snd_hal2 *chip;
diff --git a/sound/mips/sgio2audio.c b/sound/mips/sgio2audio.c
index b67d555..ff32a07 100644
--- a/sound/mips/sgio2audio.c
+++ b/sound/mips/sgio2audio.c
@@ -317,7 +317,7 @@ static struct snd_kcontrol_new sgio2audio_ctrl_mic __devinitdata = {
 };
 
 
-static int __devinit snd_sgio2audio_new_mixer(struct snd_sgio2audio *chip)
+static int snd_sgio2audio_new_mixer(struct snd_sgio2audio *chip)
 {
 	int err;
 
@@ -726,7 +726,7 @@ static struct snd_pcm_ops snd_sgio2audio_capture_ops = {
  */
 
 /* create a pcm device */
-static int __devinit snd_sgio2audio_new_pcm(struct snd_sgio2audio *chip)
+static int snd_sgio2audio_new_pcm(struct snd_sgio2audio *chip)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -834,7 +834,7 @@ static struct snd_device_ops ops = {
 	.dev_free = snd_sgio2audio_dev_free,
 };
 
-static int __devinit snd_sgio2audio_create(struct snd_card *card,
+static int snd_sgio2audio_create(struct snd_card *card,
 					   struct snd_sgio2audio **rchip)
 {
 	struct snd_sgio2audio *chip;
@@ -914,7 +914,7 @@ static int __devinit snd_sgio2audio_create(struct snd_card *card,
 	return 0;
 }
 
-static int __devinit snd_sgio2audio_probe(struct platform_device *pdev)
+static int snd_sgio2audio_probe(struct platform_device *pdev)
 {
 	struct snd_card *card;
 	struct snd_sgio2audio *chip;
diff --git a/sound/oss/kahlua.c b/sound/oss/kahlua.c
index f0836bc..5d092d2 100644
--- a/sound/oss/kahlua.c
+++ b/sound/oss/kahlua.c
@@ -43,7 +43,7 @@
  *	not real hardware.
  */
 
-static u8 __devinit mixer_read(unsigned long io, u8 reg)
+static u8 mixer_read(unsigned long io, u8 reg)
 {
 	outb(reg, io + 4);
 	udelay(20);
@@ -52,7 +52,7 @@ static u8 __devinit mixer_read(unsigned long io, u8 reg)
 	return reg;
 }
 
-static int __devinit probe_one(struct pci_dev *pdev, const struct pci_device_id *ent)
+static int probe_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	struct address_info *hw_config;
 	unsigned long base;
diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
index 7d8803a..067ff1b 100644
--- a/sound/oss/swarm_cs4297a.c
+++ b/sound/oss/swarm_cs4297a.c
@@ -46,7 +46,7 @@
 *                libOSSm.so)
 * 10/11/00 trw - modified for 2.4.0-test9 kernel enhancements (NR_MAP removal)
 * 11/03/00 trw - fixed interrupt loss/stutter, added debug.
-* 11/10/00 bkz - added __devinit to cs4297a_hw_init()
+* 11/10/00 bkz - added to cs4297a_hw_init()
 * 11/10/00 trw - fixed SMP and capture spinlock hang.
 * 12/04/00 trw - cleaned up CSDEBUG flags and added "defaultorder" moduleparm.
 * 12/05/00 trw - fixed polling (myth2), and added underrun swptr fix.
diff --git a/sound/parisc/harmony.c b/sound/parisc/harmony.c
index 41307cc..cef6a11 100644
--- a/sound/parisc/harmony.c
+++ b/sound/parisc/harmony.c
@@ -856,8 +856,7 @@ static struct snd_kcontrol_new snd_harmony_controls[] = {
 		       HARMONY_GAIN_HE_SHIFT, 1, 0),
 };
 
-static void __devinit
-snd_harmony_mixer_reset(struct snd_harmony *h)
+static void snd_harmony_mixer_reset(struct snd_harmony *h)
 {
 	harmony_mute(h);
 	harmony_reset(h);
@@ -865,8 +864,7 @@ snd_harmony_mixer_reset(struct snd_harmony *h)
 	harmony_unmute(h);
 }
 
-static int __devinit
-snd_harmony_mixer_init(struct snd_harmony *h)
+static int snd_harmony_mixer_init(struct snd_harmony *h)
 {
 	struct snd_card *card;
 	int idx, err;
@@ -915,8 +913,7 @@ snd_harmony_dev_free(struct snd_device *dev)
 	return snd_harmony_free(h);
 }
 
-static int __devinit
-snd_harmony_create(struct snd_card *card, 
+static int snd_harmony_create(struct snd_card *card,
 		   struct parisc_device *padev, 
 		   struct snd_harmony **rchip)
 {
@@ -972,8 +969,7 @@ free_and_ret:
 	return err;
 }
 
-static int __devinit
-snd_harmony_probe(struct parisc_device *padev)
+static int snd_harmony_probe(struct parisc_device *padev)
 {
 	int err;
 	struct snd_card *card;
diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index b4dc050..099d9fd 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -624,8 +624,7 @@ snd_ad1889_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int __devinit
-snd_ad1889_pcm_init(struct snd_ad1889 *chip, int device, struct snd_pcm **rpcm)
+static int snd_ad1889_pcm_init(struct snd_ad1889 *chip, int device, struct snd_pcm **rpcm)
 {
 	int err;
 	struct snd_pcm *pcm;
@@ -747,8 +746,7 @@ snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffe
 	snd_iprintf(buffer, "Resampler samplerate: %u Hz\n", reg);
 }
 
-static void __devinit
-snd_ad1889_proc_init(struct snd_ad1889 *chip)
+static void snd_ad1889_proc_init(struct snd_ad1889 *chip)
 {
 	struct snd_info_entry *entry;
 
@@ -767,8 +765,7 @@ static struct ac97_quirk ac97_quirks[] = {
 	{ } /* terminator */
 };
 
-static void __devinit
-snd_ad1889_ac97_xinit(struct snd_ad1889 *chip)
+static void snd_ad1889_ac97_xinit(struct snd_ad1889 *chip)
 {
 	u16 reg;
 
@@ -805,8 +802,7 @@ snd_ad1889_ac97_free(struct snd_ac97 *ac97)
 	chip->ac97 = NULL;
 }
 
-static int __devinit
-snd_ad1889_ac97_init(struct snd_ad1889 *chip, const char *quirk_override)
+static int snd_ad1889_ac97_init(struct snd_ad1889 *chip, const char *quirk_override)
 {
 	int err;
 	struct snd_ac97_template ac97;
@@ -878,8 +874,7 @@ snd_ad1889_dev_free(struct snd_device *device)
 	return snd_ad1889_free(chip);
 }
 
-static int __devinit
-snd_ad1889_init(struct snd_ad1889 *chip) 
+static int snd_ad1889_init(struct snd_ad1889 *chip)
 {
 	ad1889_writew(chip, AD_DS_CCS, AD_DS_CCS_CLKEN); /* turn on clock */
 	ad1889_readw(chip, AD_DS_CCS);	/* flush posted write */
@@ -892,8 +887,7 @@ snd_ad1889_init(struct snd_ad1889 *chip)
 	return 0;
 }
 
-static int __devinit
-snd_ad1889_create(struct snd_card *card,
+static int snd_ad1889_create(struct snd_card *card,
 		  struct pci_dev *pci,
 		  struct snd_ad1889 **rchip)
 {
@@ -978,8 +972,7 @@ free_and_ret:
 	return err;
 }
 
-static int __devinit
-snd_ad1889_probe(struct pci_dev *pci,
+static int snd_ad1889_probe(struct pci_dev *pci,
 		 const struct pci_device_id *pci_id)
 {
 	int err;
diff --git a/sound/pci/ak4531_codec.c b/sound/pci/ak4531_codec.c
index cadf7b9..d3e5cf1 100644
--- a/sound/pci/ak4531_codec.c
+++ b/sound/pci/ak4531_codec.c
@@ -383,7 +383,7 @@ static u8 snd_ak4531_initial_map[0x19 + 1] = {
 	0x01		/* 19: Mic Amp Setup */
 };
 
-int __devinit snd_ak4531_mixer(struct snd_card *card,
+int snd_ak4531_mixer(struct snd_card *card,
 			       struct snd_ak4531 *_ak4531,
 			       struct snd_ak4531 **rak4531)
 {
@@ -483,8 +483,7 @@ static void snd_ak4531_proc_read(struct snd_info_entry *entry,
 		    ak4531->regs[AK4531_MIC_GAIN] & 1 ? "+30dB" : "+0dB");
 }
 
-static void __devinit
-snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531)
+static void snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531)
 {
 	struct snd_info_entry *entry;
 
diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c
index 5550bfb..7691659 100644
--- a/sound/pci/ali5451/ali5451.c
+++ b/sound/pci/ali5451/ali5451.c
@@ -1678,7 +1678,7 @@ static void snd_ali_pcm_free(struct snd_pcm *pcm)
 }
 
 
-static int __devinit snd_ali_pcm(struct snd_ali * codec, int device,
+static int snd_ali_pcm(struct snd_ali * codec, int device,
 				 struct ali_pcm_description *desc)
 {
 	struct snd_pcm *pcm;
@@ -1727,7 +1727,7 @@ static struct ali_pcm_description ali_pcms[] = {
 	}
 };
 
-static int __devinit snd_ali_build_pcms(struct snd_ali *codec)
+static int snd_ali_build_pcms(struct snd_ali *codec)
 {
 	int i, err;
 	for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
@@ -1842,7 +1842,7 @@ static struct snd_kcontrol_new snd_ali5451_mixer_spdif[] __devinitdata = {
 	ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
 };
 
-static int __devinit snd_ali_mixer(struct snd_ali * codec)
+static int snd_ali_mixer(struct snd_ali * codec)
 {
 	struct snd_ac97_template ac97;
 	unsigned int idx;
@@ -2079,14 +2079,14 @@ static void snd_ali_proc_read(struct snd_info_entry *entry,
 		snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
 }
 
-static void __devinit snd_ali_proc_init(struct snd_ali *codec)
+static void snd_ali_proc_init(struct snd_ali *codec)
 {
 	struct snd_info_entry *entry;
 	if (!snd_card_proc_new(codec->card, "ali5451", &entry))
 		snd_info_set_text_ops(entry, codec, snd_ali_proc_read);
 }
 
-static int __devinit snd_ali_resources(struct snd_ali *codec)
+static int snd_ali_resources(struct snd_ali *codec)
 {
 	int err;
 
@@ -2112,7 +2112,7 @@ static int snd_ali_dev_free(struct snd_device *device)
 	return 0;
 }
 
-static int __devinit snd_ali_create(struct snd_card *card,
+static int snd_ali_create(struct snd_card *card,
 				    struct pci_dev *pci,
 				    int pcm_streams,
 				    int spdif_support,
@@ -2246,7 +2246,7 @@ static int __devinit snd_ali_create(struct snd_card *card,
 	return 0;
 }
 
-static int __devinit snd_ali_probe(struct pci_dev *pci,
+static int snd_ali_probe(struct pci_dev *pci,
 				   const struct pci_device_id *pci_id)
 {
 	struct snd_card *card;
diff --git a/sound/pci/als300.c b/sound/pci/als300.c
index 4e7e625..8fac3ce 100644
--- a/sound/pci/als300.c
+++ b/sound/pci/als300.c
@@ -622,7 +622,7 @@ static struct snd_pcm_ops snd_als300_capture_ops = {
 	.pointer =	snd_als300_pointer,
 };
 
-static int __devinit snd_als300_new_pcm(struct snd_als300 *chip)
+static int snd_als300_new_pcm(struct snd_als300 *chip)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -683,7 +683,7 @@ static void snd_als300_init(struct snd_als300 *chip)
 	snd_als300_dbgcallleave();
 }
 
-static int __devinit snd_als300_create(struct snd_card *card,
+static int snd_als300_create(struct snd_card *card,
 				       struct pci_dev *pci, int chip_type,
 				       struct snd_als300 **rchip)
 {
@@ -815,7 +815,7 @@ static SIMPLE_DEV_PM_OPS(snd_als300_pm, snd_als300_suspend, snd_als300_resume);
 #define SND_ALS300_PM_OPS	NULL
 #endif
 
-static int __devinit snd_als300_probe(struct pci_dev *pci,
+static int snd_als300_probe(struct pci_dev *pci,
                              const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/als4000.c b/sound/pci/als4000.c
index 3e0461e..2588c47 100644
--- a/sound/pci/als4000.c
+++ b/sound/pci/als4000.c
@@ -694,7 +694,7 @@ static struct snd_pcm_ops snd_als4000_capture_ops = {
 	.pointer =	snd_als4000_capture_pointer
 };
 
-static int __devinit snd_als4000_pcm(struct snd_sb *chip, int device)
+static int snd_als4000_pcm(struct snd_sb *chip, int device)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -770,7 +770,7 @@ static void snd_als4000_configure(struct snd_sb *chip)
 }
 
 #ifdef SUPPORT_JOYSTICK
-static int __devinit snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev)
+static int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev)
 {
 	struct gameport *gp;
 	struct resource *r;
@@ -847,7 +847,7 @@ static void snd_card_als4000_free( struct snd_card *card )
 	pci_disable_device(acard->pci);
 }
 
-static int __devinit snd_card_als4000_probe(struct pci_dev *pci,
+static int snd_card_als4000_probe(struct pci_dev *pci,
 					  const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c
index 7924f05..a01739c 100644
--- a/sound/pci/asihpi/asihpi.c
+++ b/sound/pci/asihpi/asihpi.c
@@ -1235,7 +1235,7 @@ static struct snd_pcm_ops snd_card_asihpi_capture_mmap_ops = {
 	.pointer = snd_card_asihpi_capture_pointer,
 };
 
-static int __devinit snd_card_asihpi_pcm_new(
+static int snd_card_asihpi_pcm_new(
 		struct snd_card_asihpi *asihpi, int device)
 {
 	struct snd_pcm *pcm;
@@ -1497,7 +1497,7 @@ static int snd_asihpi_volume_mute_put(struct snd_kcontrol *kcontrol,
 	return change;
 }
 
-static int __devinit snd_asihpi_volume_add(struct snd_card_asihpi *asihpi,
+static int snd_asihpi_volume_add(struct snd_card_asihpi *asihpi,
 					struct hpi_control *hpi_ctl)
 {
 	struct snd_card *card = asihpi->card;
@@ -1593,7 +1593,7 @@ static int snd_asihpi_level_put(struct snd_kcontrol *kcontrol,
 
 static const DECLARE_TLV_DB_SCALE(db_scale_level, -1000, 100, 0);
 
-static int __devinit snd_asihpi_level_add(struct snd_card_asihpi *asihpi,
+static int snd_asihpi_level_add(struct snd_card_asihpi *asihpi,
 					struct hpi_control *hpi_ctl)
 {
 	struct snd_card *card = asihpi->card;
@@ -1715,7 +1715,7 @@ static int snd_asihpi_aesebu_rxstatus_get(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
-static int __devinit snd_asihpi_aesebu_rx_add(struct snd_card_asihpi *asihpi,
+static int snd_asihpi_aesebu_rx_add(struct snd_card_asihpi *asihpi,
 					struct hpi_control *hpi_ctl)
 {
 	struct snd_card *card = asihpi->card;
@@ -1753,7 +1753,7 @@ static int snd_asihpi_aesebu_tx_format_put(struct snd_kcontrol *kcontrol,
 }
 
 
-static int __devinit snd_asihpi_aesebu_tx_add(struct snd_card_asihpi *asihpi,
+static int snd_asihpi_aesebu_tx_add(struct snd_card_asihpi *asihpi,
 					struct hpi_control *hpi_ctl)
 {
 	struct snd_card *card = asihpi->card;
@@ -1996,7 +1996,7 @@ static int snd_asihpi_tuner_freq_put(struct snd_kcontrol *kcontrol,
 }
 
 /* Tuner control group initializer  */
-static int __devinit snd_asihpi_tuner_add(struct snd_card_asihpi *asihpi,
+static int snd_asihpi_tuner_add(struct snd_card_asihpi *asihpi,
 					struct hpi_control *hpi_ctl)
 {
 	struct snd_card *card = asihpi->card;
@@ -2100,7 +2100,7 @@ static int snd_asihpi_meter_get(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
-static int __devinit snd_asihpi_meter_add(struct snd_card_asihpi *asihpi,
+static int snd_asihpi_meter_add(struct snd_card_asihpi *asihpi,
 					struct hpi_control *hpi_ctl, int subidx)
 {
 	struct snd_card *card = asihpi->card;
@@ -2214,7 +2214,7 @@ static int snd_asihpi_mux_put(struct snd_kcontrol *kcontrol,
 }
 
 
-static int  __devinit snd_asihpi_mux_add(struct snd_card_asihpi *asihpi,
+static int  snd_asihpi_mux_add(struct snd_card_asihpi *asihpi,
 					struct hpi_control *hpi_ctl)
 {
 	struct snd_card *card = asihpi->card;
@@ -2303,7 +2303,7 @@ static int snd_asihpi_cmode_put(struct snd_kcontrol *kcontrol,
 }
 
 
-static int __devinit snd_asihpi_cmode_add(struct snd_card_asihpi *asihpi,
+static int snd_asihpi_cmode_add(struct snd_card_asihpi *asihpi,
 					struct hpi_control *hpi_ctl)
 {
 	struct snd_card *card = asihpi->card;
@@ -2471,7 +2471,7 @@ static int snd_asihpi_clkrate_get(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
-static int __devinit snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi,
+static int snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi,
 					struct hpi_control *hpi_ctl)
 {
 	struct snd_card *card = asihpi->card;
@@ -2548,7 +2548,7 @@ static int __devinit snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi,
    Mixer
  ------------------------------------------------------------*/
 
-static int __devinit snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
+static int snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
 {
 	struct snd_card *card = asihpi->card;
 	unsigned int idx = 0;
@@ -2722,7 +2722,7 @@ snd_asihpi_proc_read(struct snd_info_entry *entry,
 	}
 }
 
-static void __devinit snd_asihpi_proc_init(struct snd_card_asihpi *asihpi)
+static void snd_asihpi_proc_init(struct snd_card_asihpi *asihpi)
 {
 	struct snd_info_entry *entry;
 
@@ -2764,7 +2764,7 @@ static int snd_asihpi_hpi_ioctl(struct snd_hwdep *hw, struct file *file,
 /* results in /dev/snd/hwC#D0 file for each card with index #
    also /proc/asound/hwdep will contain '#-00: asihpi (HPI) for each card'
 */
-static int __devinit snd_asihpi_hpi_new(struct snd_card_asihpi *asihpi,
+static int snd_asihpi_hpi_new(struct snd_card_asihpi *asihpi,
 	int device, struct snd_hwdep **rhwdep)
 {
 	struct snd_hwdep *hw;
@@ -2789,7 +2789,7 @@ static int __devinit snd_asihpi_hpi_new(struct snd_card_asihpi *asihpi,
 /*------------------------------------------------------------
    CARD
  ------------------------------------------------------------*/
-static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev,
+static int snd_asihpi_probe(struct pci_dev *pci_dev,
 				       const struct pci_device_id *pci_id)
 {
 	int err;
diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c
index 8f96749..842b94d 100644
--- a/sound/pci/asihpi/hpioctl.c
+++ b/sound/pci/asihpi/hpioctl.c
@@ -307,7 +307,7 @@ out:
 	return err;
 }
 
-int __devinit asihpi_adapter_probe(struct pci_dev *pci_dev,
+int asihpi_adapter_probe(struct pci_dev *pci_dev,
 	const struct pci_device_id *pci_id)
 {
 	int idx, nm;
diff --git a/sound/pci/asihpi/hpioctl.h b/sound/pci/asihpi/hpioctl.h
index 2614aff..f99baea 100644
--- a/sound/pci/asihpi/hpioctl.h
+++ b/sound/pci/asihpi/hpioctl.h
@@ -19,7 +19,7 @@
 Linux HPI ioctl, and shared module init functions
 *******************************************************************************/
 
-int __devinit asihpi_adapter_probe(struct pci_dev *pci_dev,
+int asihpi_adapter_probe(struct pci_dev *pci_dev,
 	const struct pci_device_id *pci_id);
 void __devexit asihpi_adapter_remove(struct pci_dev *pci_dev);
 void __init asihpi_init(void);
diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index b281f2a..132c151 100644
--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -561,7 +561,7 @@ static int snd_atiixp_aclink_down(struct atiixp *chip)
 	     ATI_REG_ISR_CODEC2_NOT_READY)
 #define CODEC_CHECK_BITS (ALL_CODEC_NOT_READY|ATI_REG_ISR_NEW_FRAME)
 
-static int __devinit ac97_probing_bugs(struct pci_dev *pci)
+static int ac97_probing_bugs(struct pci_dev *pci)
 {
 	const struct snd_pci_quirk *q;
 
@@ -575,7 +575,7 @@ static int __devinit ac97_probing_bugs(struct pci_dev *pci)
 	return -1;
 }
 
-static int __devinit snd_atiixp_codec_detect(struct atiixp *chip)
+static int snd_atiixp_codec_detect(struct atiixp *chip)
 {
 	int timeout;
 
@@ -1247,7 +1247,7 @@ static struct atiixp_dma_ops snd_atiixp_spdif_dma_ops = {
 };
 	
 
-static int __devinit snd_atiixp_pcm_new(struct atiixp *chip)
+static int snd_atiixp_pcm_new(struct atiixp *chip)
 {
 	struct snd_pcm *pcm;
 	struct snd_pcm_chmap *chmap;
@@ -1412,7 +1412,7 @@ static struct ac97_quirk ac97_quirks[] __devinitdata = {
 	{ } /* terminator */
 };
 
-static int __devinit snd_atiixp_mixer_new(struct atiixp *chip, int clock,
+static int snd_atiixp_mixer_new(struct atiixp *chip, int clock,
 					  const char *quirk_override)
 {
 	struct snd_ac97_bus *pbus;
@@ -1560,7 +1560,7 @@ static void snd_atiixp_proc_read(struct snd_info_entry *entry,
 		snd_iprintf(buffer, "%02x: %08x\n", i, readl(chip->remap_addr + i));
 }
 
-static void __devinit snd_atiixp_proc_init(struct atiixp *chip)
+static void snd_atiixp_proc_init(struct atiixp *chip)
 {
 	struct snd_info_entry *entry;
 
@@ -1602,7 +1602,7 @@ static int snd_atiixp_dev_free(struct snd_device *device)
 /*
  * constructor for chip instance
  */
-static int __devinit snd_atiixp_create(struct snd_card *card,
+static int snd_atiixp_create(struct snd_card *card,
 				      struct pci_dev *pci,
 				      struct atiixp **r_chip)
 {
@@ -1661,7 +1661,7 @@ static int __devinit snd_atiixp_create(struct snd_card *card,
 }
 
 
-static int __devinit snd_atiixp_probe(struct pci_dev *pci,
+static int snd_atiixp_probe(struct pci_dev *pci,
 				     const struct pci_device_id *pci_id)
 {
 	struct snd_card *card;
diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c
index 95b1cd2..5cb8928 100644
--- a/sound/pci/atiixp_modem.c
+++ b/sound/pci/atiixp_modem.c
@@ -988,7 +988,7 @@ static struct atiixp_dma_ops snd_atiixp_capture_dma_ops = {
 	.flush_dma = atiixp_in_flush_dma,
 };
 
-static int __devinit snd_atiixp_pcm_new(struct atiixp_modem *chip)
+static int snd_atiixp_pcm_new(struct atiixp_modem *chip)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1061,7 +1061,7 @@ static irqreturn_t snd_atiixp_interrupt(int irq, void *dev_id)
  * ac97 mixer section
  */
 
-static int __devinit snd_atiixp_mixer_new(struct atiixp_modem *chip, int clock)
+static int snd_atiixp_mixer_new(struct atiixp_modem *chip, int clock)
 {
 	struct snd_ac97_bus *pbus;
 	struct snd_ac97_template ac97;
@@ -1186,7 +1186,7 @@ static void snd_atiixp_proc_read(struct snd_info_entry *entry,
 		snd_iprintf(buffer, "%02x: %08x\n", i, readl(chip->remap_addr + i));
 }
 
-static void __devinit snd_atiixp_proc_init(struct atiixp_modem *chip)
+static void snd_atiixp_proc_init(struct atiixp_modem *chip)
 {
 	struct snd_info_entry *entry;
 
@@ -1228,7 +1228,7 @@ static int snd_atiixp_dev_free(struct snd_device *device)
 /*
  * constructor for chip instance
  */
-static int __devinit snd_atiixp_create(struct snd_card *card,
+static int snd_atiixp_create(struct snd_card *card,
 				       struct pci_dev *pci,
 				       struct atiixp_modem **r_chip)
 {
@@ -1287,7 +1287,7 @@ static int __devinit snd_atiixp_create(struct snd_card *card,
 }
 
 
-static int __devinit snd_atiixp_probe(struct pci_dev *pci,
+static int snd_atiixp_probe(struct pci_dev *pci,
 				      const struct pci_device_id *pci_id)
 {
 	struct snd_card *card;
diff --git a/sound/pci/au88x0/au88x0.c b/sound/pci/au88x0/au88x0.c
index 1b24880..9cf669a 100644
--- a/sound/pci/au88x0/au88x0.c
+++ b/sound/pci/au88x0/au88x0.c
@@ -78,7 +78,7 @@ static void vortex_fix_agp_bridge(struct pci_dev *via)
 	}
 }
 
-static void __devinit snd_vortex_workaround(struct pci_dev *vortex, int fix)
+static void snd_vortex_workaround(struct pci_dev *vortex, int fix)
 {
 	struct pci_dev *via = NULL;
 
@@ -137,8 +137,7 @@ static int snd_vortex_dev_free(struct snd_device *device)
 
 // chip-specific constructor
 // (see "Management of Cards and Components")
-static int __devinit
-snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip)
+static int snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip)
 {
 	vortex_t *chip;
 	int err;
@@ -234,8 +233,7 @@ snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip)
 }
 
 // constructor -- see "Constructor" sub-section
-static int __devinit
-snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
+static int snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 {
 	static int dev;
 	struct snd_card *card;
diff --git a/sound/pci/au88x0/au88x0_a3d.c b/sound/pci/au88x0/au88x0_a3d.c
index 9ae8b3b..a00faa0 100644
--- a/sound/pci/au88x0/au88x0_a3d.c
+++ b/sound/pci/au88x0/au88x0_a3d.c
@@ -594,7 +594,7 @@ static int Vort3DRend_Initialize(vortex_t * v, unsigned short mode)
 static int vortex_a3d_register_controls(vortex_t * vortex);
 static void vortex_a3d_unregister_controls(vortex_t * vortex);
 /* A3D base support init/shudown */
-static void __devinit vortex_Vort3D_enable(vortex_t * v)
+static void vortex_Vort3D_enable(vortex_t * v)
 {
 	int i;
 
@@ -855,7 +855,7 @@ static struct snd_kcontrol_new vortex_a3d_kcontrol __devinitdata = {
 };
 
 /* Control (un)registration. */
-static int __devinit vortex_a3d_register_controls(vortex_t * vortex)
+static int vortex_a3d_register_controls(vortex_t * vortex)
 {
 	struct snd_kcontrol *kcontrol;
 	int err, i;
diff --git a/sound/pci/au88x0/au88x0_core.c b/sound/pci/au88x0/au88x0_core.c
index 2698abf..a7855e2 100644
--- a/sound/pci/au88x0/au88x0_core.c
+++ b/sound/pci/au88x0/au88x0_core.c
@@ -2680,7 +2680,7 @@ static void vortex_spdif_init(vortex_t * vortex, int spdif_sr, int spdif_mode)
 
 /* Initialization */
 
-static int __devinit vortex_core_init(vortex_t * vortex)
+static int vortex_core_init(vortex_t * vortex)
 {
 
 	printk(KERN_INFO "Vortex: init.... ");
diff --git a/sound/pci/au88x0/au88x0_eq.c b/sound/pci/au88x0/au88x0_eq.c
index 278ed81..0ddf004a 100644
--- a/sound/pci/au88x0/au88x0_eq.c
+++ b/sound/pci/au88x0/au88x0_eq.c
@@ -877,7 +877,7 @@ static char *EqBandLabels[10] __devinitdata = {
 };
 
 /* ALSA driver entry points. Init and exit. */
-static int __devinit vortex_eq_init(vortex_t * vortex)
+static int vortex_eq_init(vortex_t * vortex)
 {
 	struct snd_kcontrol *kcontrol;
 	int err, i;
diff --git a/sound/pci/au88x0/au88x0_game.c b/sound/pci/au88x0/au88x0_game.c
index 30a4567..984d015 100644
--- a/sound/pci/au88x0/au88x0_game.c
+++ b/sound/pci/au88x0/au88x0_game.c
@@ -92,7 +92,7 @@ static int vortex_game_open(struct gameport *gameport, int mode)
 	return 0;
 }
 
-static int __devinit vortex_gameport_register(vortex_t * vortex)
+static int vortex_gameport_register(vortex_t * vortex)
 {
 	struct gameport *gp;
 
diff --git a/sound/pci/au88x0/au88x0_mixer.c b/sound/pci/au88x0/au88x0_mixer.c
index fa13efb..965ea58 100644
--- a/sound/pci/au88x0/au88x0_mixer.c
+++ b/sound/pci/au88x0/au88x0_mixer.c
@@ -19,7 +19,7 @@ static int remove_ctl(struct snd_card *card, const char *name)
 	return snd_ctl_remove_id(card, &id);
 }
 
-static int __devinit snd_vortex_mixer(vortex_t * vortex)
+static int snd_vortex_mixer(vortex_t * vortex)
 {
 	struct snd_ac97_bus *pbus;
 	struct snd_ac97_template ac97;
diff --git a/sound/pci/au88x0/au88x0_mpu401.c b/sound/pci/au88x0/au88x0_mpu401.c
index e6c6a0f..e447719 100644
--- a/sound/pci/au88x0/au88x0_mpu401.c
+++ b/sound/pci/au88x0/au88x0_mpu401.c
@@ -41,7 +41,7 @@
 #define MPU401_ENTER_UART	0x3f
 #define MPU401_ACK		    0xfe
 
-static int __devinit snd_vortex_midi(vortex_t * vortex)
+static int snd_vortex_midi(vortex_t * vortex)
 {
 	struct snd_rawmidi *rmidi;
 	int temp, mode;
diff --git a/sound/pci/au88x0/au88x0_pcm.c b/sound/pci/au88x0/au88x0_pcm.c
index b240502..c7d6b35 100644
--- a/sound/pci/au88x0/au88x0_pcm.c
+++ b/sound/pci/au88x0/au88x0_pcm.c
@@ -611,7 +611,7 @@ static struct snd_kcontrol_new snd_vortex_pcm_vol __devinitdata = {
 };
 
 /* create a pcm device */
-static int __devinit snd_vortex_new_pcm(vortex_t *chip, int idx, int nr)
+static int snd_vortex_new_pcm(vortex_t *chip, int idx, int nr)
 {
 	struct snd_pcm *pcm;
 	struct snd_kcontrol *kctl;
diff --git a/sound/pci/aw2/aw2-alsa.c b/sound/pci/aw2/aw2-alsa.c
index 9a9b920..4189705 100644
--- a/sound/pci/aw2/aw2-alsa.c
+++ b/sound/pci/aw2/aw2-alsa.c
@@ -113,9 +113,9 @@ struct aw2 {
  * FUNCTION DECLARATIONS
  ********************************/
 static int snd_aw2_dev_free(struct snd_device *device);
-static int __devinit snd_aw2_create(struct snd_card *card,
+static int snd_aw2_create(struct snd_card *card,
 				    struct pci_dev *pci, struct aw2 **rchip);
-static int __devinit snd_aw2_probe(struct pci_dev *pci,
+static int snd_aw2_probe(struct pci_dev *pci,
 				   const struct pci_device_id *pci_id);
 static void __devexit snd_aw2_remove(struct pci_dev *pci);
 static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream);
@@ -135,7 +135,7 @@ static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream
 						      *substream);
 static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream
 						     *substream);
-static int __devinit snd_aw2_new_pcm(struct aw2 *chip);
+static int snd_aw2_new_pcm(struct aw2 *chip);
 
 static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol,
 					       struct snd_ctl_elem_info *uinfo);
@@ -242,7 +242,7 @@ static int snd_aw2_dev_free(struct snd_device *device)
 }
 
 /* chip-specific constructor */
-static int __devinit snd_aw2_create(struct snd_card *card,
+static int snd_aw2_create(struct snd_card *card,
 				    struct pci_dev *pci, struct aw2 **rchip)
 {
 	struct aw2 *chip;
@@ -332,7 +332,7 @@ static int __devinit snd_aw2_create(struct snd_card *card,
 }
 
 /* constructor */
-static int __devinit snd_aw2_probe(struct pci_dev *pci,
+static int snd_aw2_probe(struct pci_dev *pci,
 				   const struct pci_device_id *pci_id)
 {
 	static int dev;
@@ -591,7 +591,7 @@ static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream
 }
 
 /* create a pcm device */
-static int __devinit snd_aw2_new_pcm(struct aw2 *chip)
+static int snd_aw2_new_pcm(struct aw2 *chip)
 {
 	struct snd_pcm *pcm_playback_ana;
 	struct snd_pcm *pcm_playback_num;
diff --git a/sound/pci/azt3328.c b/sound/pci/azt3328.c
index 8a48a69..5e4031b 100644
--- a/sound/pci/azt3328.c
+++ b/sound/pci/azt3328.c
@@ -817,8 +817,7 @@ snd_azf3328_mixer_ac97_write(struct snd_ac97 *ac97,
 		snd_azf3328_mixer_ac97_map_unsupported(reg_ac97, "write");
 }
 
-static int __devinit
-snd_azf3328_mixer_new(struct snd_azf3328 *chip)
+static int snd_azf3328_mixer_new(struct snd_azf3328 *chip)
 {
 	struct snd_ac97_bus *bus;
 	struct snd_ac97_template ac97;
@@ -1245,8 +1244,7 @@ static u16 __devinitdata snd_azf3328_init_values[][2] = {
         { IDX_MIXER_REC_VOLUME,		MIXER_MUTE_MASK|0x0707 },
 };
 
-static int __devinit
-snd_azf3328_mixer_new(struct snd_azf3328 *chip)
+static int snd_azf3328_mixer_new(struct snd_azf3328 *chip)
 {
 	struct snd_card *card;
 	const struct snd_kcontrol_new *sw;
@@ -1899,8 +1897,7 @@ snd_azf3328_gameport_cooked_read(struct gameport *gameport,
 	return 0;
 }
 
-static int __devinit
-snd_azf3328_gameport(struct snd_azf3328 *chip, int dev)
+static int snd_azf3328_gameport(struct snd_azf3328 *chip, int dev)
 {
 	struct gameport *gp;
 
@@ -2212,8 +2209,7 @@ static struct snd_pcm_ops snd_azf3328_i2s_out_ops = {
 	.pointer =	snd_azf3328_pcm_pointer
 };
 
-static int __devinit
-snd_azf3328_pcm(struct snd_azf3328 *chip)
+static int snd_azf3328_pcm(struct snd_azf3328 *chip)
 {
 enum { AZF_PCMDEV_STD, AZF_PCMDEV_I2S_OUT, NUM_AZF_PCMDEVS }; /* pcm devices */
 
@@ -2344,8 +2340,7 @@ static struct snd_timer_hardware snd_azf3328_timer_hw = {
 	.precise_resolution = snd_azf3328_timer_precise_resolution,
 };
 
-static int __devinit
-snd_azf3328_timer(struct snd_azf3328 *chip, int device)
+static int snd_azf3328_timer(struct snd_azf3328 *chip, int device)
 {
 	struct snd_timer *timer = NULL;
 	struct snd_timer_id tid;
@@ -2489,8 +2484,7 @@ snd_azf3328_debug_show_ports(const struct snd_azf3328 *chip)
 #endif /* DEBUG_MISC */
 }
 
-static int __devinit
-snd_azf3328_create(struct snd_card *card,
+static int snd_azf3328_create(struct snd_card *card,
 		   struct pci_dev *pci,
 		   unsigned long device_type,
 		   struct snd_azf3328 **rchip)
@@ -2615,8 +2609,7 @@ out:
 	return err;
 }
 
-static int __devinit
-snd_azf3328_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
+static int snd_azf3328_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 {
 	static int dev;
 	struct snd_card *card;
diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index a0ee0c7..6cfb4ee 100644
--- a/sound/pci/bt87x.c
+++ b/sound/pci/bt87x.c
@@ -696,7 +696,7 @@ static int snd_bt87x_dev_free(struct snd_device *device)
 	return snd_bt87x_free(chip);
 }
 
-static int __devinit snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
+static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
 {
 	int err;
 	struct snd_pcm *pcm;
@@ -714,7 +714,7 @@ static int __devinit snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *nam
 							ALIGN(255 * 4092, 1024));
 }
 
-static int __devinit snd_bt87x_create(struct snd_card *card,
+static int snd_bt87x_create(struct snd_card *card,
 				      struct pci_dev *pci,
 				      struct snd_bt87x **rchip)
 {
@@ -837,7 +837,7 @@ static struct {
 };
 
 /* return the id of the card, or a negative value if it's blacklisted */
-static int __devinit snd_bt87x_detect_card(struct pci_dev *pci)
+static int snd_bt87x_detect_card(struct pci_dev *pci)
 {
 	int i;
 	const struct pci_device_id *supported;
@@ -862,7 +862,7 @@ static int __devinit snd_bt87x_detect_card(struct pci_dev *pci)
 	return SND_BT87X_BOARD_UNKNOWN;
 }
 
-static int __devinit snd_bt87x_probe(struct pci_dev *pci,
+static int snd_bt87x_probe(struct pci_dev *pci,
 				     const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c
index 030c846..f827687 100644
--- a/sound/pci/ca0106/ca0106_main.c
+++ b/sound/pci/ca0106/ca0106_main.c
@@ -1352,7 +1352,7 @@ static const struct snd_pcm_chmap_elem side_map[] = {
 	{ }
 };
 
-static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
+static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
 {
 	struct snd_pcm *pcm;
 	struct snd_pcm_substream *substream;
@@ -1650,7 +1650,7 @@ static void ca0106_stop_chip(struct snd_ca0106 *chip)
 	 */
 }
 
-static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
+static int snd_ca0106_create(int dev, struct snd_card *card,
 					 struct pci_dev *pci,
 					 struct snd_ca0106 **rchip)
 {
@@ -1777,7 +1777,7 @@ static int ca0106_dev_id_port(void *dev_id)
 	return ((struct snd_ca0106 *)dev_id)->port;
 }
 
-static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
+static int snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
 {
 	struct snd_ca_midi *midi;
 	char *name;
@@ -1828,7 +1828,7 @@ static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int chann
 }
 
 
-static int __devinit snd_ca0106_probe(struct pci_dev *pci,
+static int snd_ca0106_probe(struct pci_dev *pci,
 					const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/ca0106/ca0106_mixer.c b/sound/pci/ca0106/ca0106_mixer.c
index 68eacf7..2d040ef 100644
--- a/sound/pci/ca0106/ca0106_mixer.c
+++ b/sound/pci/ca0106/ca0106_mixer.c
@@ -691,8 +691,7 @@ static const int spi_dmute_bit[] = {
 	SPI_DMUTE4_BIT,
 };
 
-static struct snd_kcontrol_new __devinit
-snd_ca0106_volume_spi_dac_ctl(struct snd_ca0106_details *details,
+static struct snd_kcontrol_new snd_ca0106_volume_spi_dac_ctl(struct snd_ca0106_details *details,
 			      int channel_id)
 {
 	struct snd_kcontrol_new spi_switch = {0};
@@ -735,7 +734,7 @@ snd_ca0106_volume_spi_dac_ctl(struct snd_ca0106_details *details,
 	return spi_switch;
 }
 
-static int __devinit remove_ctl(struct snd_card *card, const char *name)
+static int remove_ctl(struct snd_card *card, const char *name)
 {
 	struct snd_ctl_elem_id id;
 	memset(&id, 0, sizeof(id));
@@ -744,7 +743,7 @@ static int __devinit remove_ctl(struct snd_card *card, const char *name)
 	return snd_ctl_remove_id(card, &id);
 }
 
-static struct snd_kcontrol __devinit *ctl_find(struct snd_card *card, const char *name)
+static struct snd_kcontrol *ctl_find(struct snd_card *card, const char *name)
 {
 	struct snd_ctl_elem_id sid;
 	memset(&sid, 0, sizeof(sid));
@@ -754,7 +753,7 @@ static struct snd_kcontrol __devinit *ctl_find(struct snd_card *card, const char
 	return snd_ctl_find_id(card, &sid);
 }
 
-static int __devinit rename_ctl(struct snd_card *card, const char *src, const char *dst)
+static int rename_ctl(struct snd_card *card, const char *src, const char *dst)
 {
 	struct snd_kcontrol *kctl = ctl_find(card, src);
 	if (kctl) {
@@ -799,7 +798,7 @@ static char *slave_sws[] __devinitdata = {
 	NULL
 };
 
-static void __devinit add_slaves(struct snd_card *card,
+static void add_slaves(struct snd_card *card,
 				 struct snd_kcontrol *master, char **list)
 {
 	for (; *list; list++) {
@@ -809,7 +808,7 @@ static void __devinit add_slaves(struct snd_card *card,
 	}
 }
 
-int __devinit snd_ca0106_mixer(struct snd_ca0106 *emu)
+int snd_ca0106_mixer(struct snd_ca0106 *emu)
 {
 	int err;
         struct snd_card *card = emu->card;
diff --git a/sound/pci/ca0106/ca0106_proc.c b/sound/pci/ca0106/ca0106_proc.c
index c694464..9fa037d 100644
--- a/sound/pci/ca0106/ca0106_proc.c
+++ b/sound/pci/ca0106/ca0106_proc.c
@@ -424,7 +424,7 @@ static void snd_ca0106_proc_i2c_write(struct snd_info_entry *entry,
         }
 }
 
-int __devinit snd_ca0106_proc_init(struct snd_ca0106 * emu)
+int snd_ca0106_proc_init(struct snd_ca0106 * emu)
 {
 	struct snd_info_entry *entry;
 	
diff --git a/sound/pci/ca0106/ca_midi.c b/sound/pci/ca0106/ca_midi.c
index c788511..8bbdf26 100644
--- a/sound/pci/ca0106/ca_midi.c
+++ b/sound/pci/ca0106/ca_midi.c
@@ -286,7 +286,7 @@ static void ca_rmidi_free(struct snd_rawmidi *rmidi)
 	ca_midi_free(rmidi->private_data);
 }
 
-int __devinit ca_midi_init(void *dev_id, struct snd_ca_midi *midi, int device, char *name)
+int ca_midi_init(void *dev_id, struct snd_ca_midi *midi, int device, char *name)
 {
 	struct snd_rawmidi *rmidi;
 	int err;
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c
index 2a69cc3..86ca0ab 100644
--- a/sound/pci/cmipci.c
+++ b/sound/pci/cmipci.c
@@ -1897,7 +1897,7 @@ static struct snd_pcm_ops snd_cmipci_capture_spdif_ops = {
 /*
  */
 
-static int __devinit snd_cmipci_pcm_new(struct cmipci *cm, int device)
+static int snd_cmipci_pcm_new(struct cmipci *cm, int device)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1920,7 +1920,7 @@ static int __devinit snd_cmipci_pcm_new(struct cmipci *cm, int device)
 	return 0;
 }
 
-static int __devinit snd_cmipci_pcm2_new(struct cmipci *cm, int device)
+static int snd_cmipci_pcm2_new(struct cmipci *cm, int device)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1942,7 +1942,7 @@ static int __devinit snd_cmipci_pcm2_new(struct cmipci *cm, int device)
 	return 0;
 }
 
-static int __devinit snd_cmipci_pcm_spdif_new(struct cmipci *cm, int device)
+static int snd_cmipci_pcm_spdif_new(struct cmipci *cm, int device)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -2663,7 +2663,7 @@ static struct snd_kcontrol_new snd_cmipci_modem_switch __devinitdata =
 DEFINE_CARD_SWITCH("Modem", modem);
 
 
-static int __devinit snd_cmipci_mixer_new(struct cmipci *cm, int pcm_spdif_device)
+static int snd_cmipci_mixer_new(struct cmipci *cm, int pcm_spdif_device)
 {
 	struct snd_card *card;
 	struct snd_kcontrol_new *sw;
@@ -2791,7 +2791,7 @@ static void snd_cmipci_proc_read(struct snd_info_entry *entry,
 	snd_iprintf(buffer, "\n");
 }
 
-static void __devinit snd_cmipci_proc_init(struct cmipci *cm)
+static void snd_cmipci_proc_init(struct cmipci *cm)
 {
 	struct snd_info_entry *entry;
 
@@ -2817,7 +2817,7 @@ static DEFINE_PCI_DEVICE_TABLE(snd_cmipci_ids) = {
  * check chip version and capabilities
  * driver name is modified according to the chip model
  */
-static void __devinit query_chip(struct cmipci *cm)
+static void query_chip(struct cmipci *cm)
 {
 	unsigned int detect;
 
@@ -2866,7 +2866,7 @@ static void __devinit query_chip(struct cmipci *cm)
 }
 
 #ifdef SUPPORT_JOYSTICK
-static int __devinit snd_cmipci_create_gameport(struct cmipci *cm, int dev)
+static int snd_cmipci_create_gameport(struct cmipci *cm, int dev)
 {
 	static int ports[] = { 0x201, 0x200, 0 }; /* FIXME: majority is 0x201? */
 	struct gameport *gp;
@@ -2959,7 +2959,7 @@ static int snd_cmipci_dev_free(struct snd_device *device)
 	return snd_cmipci_free(cm);
 }
 
-static int __devinit snd_cmipci_create_fm(struct cmipci *cm, long fm_port)
+static int snd_cmipci_create_fm(struct cmipci *cm, long fm_port)
 {
 	long iosynth;
 	unsigned int val;
@@ -3012,7 +3012,7 @@ static int __devinit snd_cmipci_create_fm(struct cmipci *cm, long fm_port)
 	return 0;
 }
 
-static int __devinit snd_cmipci_create(struct snd_card *card, struct pci_dev *pci,
+static int snd_cmipci_create(struct snd_card *card, struct pci_dev *pci,
 				       int dev, struct cmipci **rcmipci)
 {
 	struct cmipci *cm;
@@ -3265,7 +3265,7 @@ static int __devinit snd_cmipci_create(struct snd_card *card, struct pci_dev *pc
 
 MODULE_DEVICE_TABLE(pci, snd_cmipci_ids);
 
-static int __devinit snd_cmipci_probe(struct pci_dev *pci,
+static int snd_cmipci_probe(struct pci_dev *pci,
 				      const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index 0ecf782..5431c6d 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -969,7 +969,7 @@ static struct snd_pcm_ops snd_cs4281_capture_ops = {
 	.pointer =	snd_cs4281_pointer,
 };
 
-static int __devinit snd_cs4281_pcm(struct cs4281 * chip, int device,
+static int snd_cs4281_pcm(struct cs4281 * chip, int device,
 				    struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
@@ -1093,7 +1093,7 @@ static void snd_cs4281_mixer_free_ac97(struct snd_ac97 *ac97)
 		chip->ac97 = NULL;
 }
 
-static int __devinit snd_cs4281_mixer(struct cs4281 * chip)
+static int snd_cs4281_mixer(struct cs4281 * chip)
 {
 	struct snd_card *card = chip->card;
 	struct snd_ac97_template ac97;
@@ -1171,7 +1171,7 @@ static struct snd_info_entry_ops snd_cs4281_proc_ops_BA1 = {
 	.read = snd_cs4281_BA1_read,
 };
 
-static void __devinit snd_cs4281_proc_init(struct cs4281 * chip)
+static void snd_cs4281_proc_init(struct cs4281 * chip)
 {
 	struct snd_info_entry *entry;
 
@@ -1259,7 +1259,7 @@ static int snd_cs4281_gameport_open(struct gameport *gameport, int mode)
 	return 0;
 }
 
-static int __devinit snd_cs4281_create_gameport(struct cs4281 *chip)
+static int snd_cs4281_create_gameport(struct cs4281 *chip)
 {
 	struct gameport *gp;
 
@@ -1335,7 +1335,7 @@ static int snd_cs4281_dev_free(struct snd_device *device)
 
 static int snd_cs4281_chip_init(struct cs4281 *chip); /* defined below */
 
-static int __devinit snd_cs4281_create(struct snd_card *card,
+static int snd_cs4281_create(struct snd_card *card,
 				       struct pci_dev *pci,
 				       struct cs4281 ** rchip,
 				       int dual_codec)
@@ -1779,7 +1779,7 @@ static struct snd_rawmidi_ops snd_cs4281_midi_input =
 	.trigger =	snd_cs4281_midi_input_trigger,
 };
 
-static int __devinit snd_cs4281_midi(struct cs4281 * chip, int device,
+static int snd_cs4281_midi(struct cs4281 * chip, int device,
 				     struct snd_rawmidi **rrawmidi)
 {
 	struct snd_rawmidi *rmidi;
@@ -1901,7 +1901,7 @@ static void snd_cs4281_opl3_command(struct snd_opl3 *opl3, unsigned short cmd,
 	spin_unlock_irqrestore(&opl3->reg_lock, flags);
 }
 
-static int __devinit snd_cs4281_probe(struct pci_dev *pci,
+static int snd_cs4281_probe(struct pci_dev *pci,
 				      const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/cs46xx/cs46xx.c b/sound/pci/cs46xx/cs46xx.c
index e47fb8b..74a43b0 100644
--- a/sound/pci/cs46xx/cs46xx.c
+++ b/sound/pci/cs46xx/cs46xx.c
@@ -73,7 +73,7 @@ static DEFINE_PCI_DEVICE_TABLE(snd_cs46xx_ids) = {
 
 MODULE_DEVICE_TABLE(pci, snd_cs46xx_ids);
 
-static int __devinit snd_card_cs46xx_probe(struct pci_dev *pci,
+static int snd_card_cs46xx_probe(struct pci_dev *pci,
 					   const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c
index a2bb8c9..c43feb0 100644
--- a/sound/pci/cs46xx/cs46xx_lib.c
+++ b/sound/pci/cs46xx/cs46xx_lib.c
@@ -1590,7 +1590,7 @@ static struct snd_pcm_ops snd_cs46xx_capture_indirect_ops = {
 #define MAX_PLAYBACK_CHANNELS	1
 #endif
 
-int __devinit snd_cs46xx_pcm(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
+int snd_cs46xx_pcm(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1621,7 +1621,7 @@ int __devinit snd_cs46xx_pcm(struct snd_cs46xx *chip, int device, struct snd_pcm
 
 
 #ifdef CONFIG_SND_CS46XX_NEW_DSP
-int __devinit snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
+int snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1650,7 +1650,7 @@ int __devinit snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device, struct sn
 	return 0;
 }
 
-int __devinit snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
+int snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1679,7 +1679,7 @@ int __devinit snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device, str
 	return 0;
 }
 
-int __devinit snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
+int snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -2278,7 +2278,7 @@ static void snd_cs46xx_codec_reset (struct snd_ac97 * ac97)
 }
 #endif
 
-static int __devinit cs46xx_detect_codec(struct snd_cs46xx *chip, int codec)
+static int cs46xx_detect_codec(struct snd_cs46xx *chip, int codec)
 {
 	int idx, err;
 	struct snd_ac97_template ac97;
@@ -2311,7 +2311,7 @@ static int __devinit cs46xx_detect_codec(struct snd_cs46xx *chip, int codec)
 	return -ENXIO;
 }
 
-int __devinit snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device)
+int snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device)
 {
 	struct snd_card *card = chip->card;
 	struct snd_ctl_elem_id id;
@@ -2531,7 +2531,7 @@ static struct snd_rawmidi_ops snd_cs46xx_midi_input =
 	.trigger =	snd_cs46xx_midi_input_trigger,
 };
 
-int __devinit snd_cs46xx_midi(struct snd_cs46xx *chip, int device, struct snd_rawmidi **rrawmidi)
+int snd_cs46xx_midi(struct snd_cs46xx *chip, int device, struct snd_rawmidi **rrawmidi)
 {
 	struct snd_rawmidi *rmidi;
 	int err;
@@ -2613,7 +2613,7 @@ static int snd_cs46xx_gameport_open(struct gameport *gameport, int mode)
 	return 0;
 }
 
-int __devinit snd_cs46xx_gameport(struct snd_cs46xx *chip)
+int snd_cs46xx_gameport(struct snd_cs46xx *chip)
 {
 	struct gameport *gp;
 
@@ -2649,7 +2649,7 @@ static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip)
 	}
 }
 #else
-int __devinit snd_cs46xx_gameport(struct snd_cs46xx *chip) { return -ENOSYS; }
+int snd_cs46xx_gameport(struct snd_cs46xx *chip) { return -ENOSYS; }
 static inline void snd_cs46xx_remove_gameport(struct snd_cs46xx *chip) { }
 #endif /* CONFIG_GAMEPORT */
 
@@ -2674,7 +2674,7 @@ static struct snd_info_entry_ops snd_cs46xx_proc_io_ops = {
 	.read = snd_cs46xx_io_read,
 };
 
-static int __devinit snd_cs46xx_proc_init(struct snd_card *card, struct snd_cs46xx *chip)
+static int snd_cs46xx_proc_init(struct snd_card *card, struct snd_cs46xx *chip)
 {
 	struct snd_info_entry *entry;
 	int idx;
@@ -3061,7 +3061,7 @@ static void cs46xx_enable_stream_irqs(struct snd_cs46xx *chip)
 	snd_cs46xx_poke(chip, BA1_CIE, tmp);	/* capture interrupt enable */
 }
 
-int __devinit snd_cs46xx_start_dsp(struct snd_cs46xx *chip)
+int snd_cs46xx_start_dsp(struct snd_cs46xx *chip)
 {	
 	unsigned int tmp;
 	/*
@@ -3717,7 +3717,7 @@ SIMPLE_DEV_PM_OPS(snd_cs46xx_pm, snd_cs46xx_suspend, snd_cs46xx_resume);
 /*
  */
 
-int __devinit snd_cs46xx_create(struct snd_card *card,
+int snd_cs46xx_create(struct snd_card *card,
 		      struct pci_dev * pci,
 		      int external_amp, int thinkpad,
 		      struct snd_cs46xx ** rchip)
diff --git a/sound/pci/cs5530.c b/sound/pci/cs5530.c
index ed68917..94aee6e 100644
--- a/sound/pci/cs5530.c
+++ b/sound/pci/cs5530.c
@@ -94,7 +94,7 @@ static void __devexit snd_cs5530_remove(struct pci_dev *pci)
 	pci_set_drvdata(pci, NULL);
 }
 
-static u8 __devinit snd_cs5530_mixer_read(unsigned long io, u8 reg)
+static u8 snd_cs5530_mixer_read(unsigned long io, u8 reg)
 {
 	outb(reg, io + 4);
 	udelay(20);
@@ -103,7 +103,7 @@ static u8 __devinit snd_cs5530_mixer_read(unsigned long io, u8 reg)
 	return reg;
 }
 
-static int __devinit snd_cs5530_create(struct snd_card *card,
+static int snd_cs5530_create(struct snd_card *card,
 				       struct pci_dev *pci,
 				       struct snd_cs5530 **rchip)
 {
@@ -250,7 +250,7 @@ static int __devinit snd_cs5530_create(struct snd_card *card,
 	return 0;
 }
 
-static int __devinit snd_cs5530_probe(struct pci_dev *pci,
+static int snd_cs5530_probe(struct pci_dev *pci,
 					const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/cs5535audio/cs5535audio.c b/sound/pci/cs5535audio/cs5535audio.c
index b3f25e4..fa953e2 100644
--- a/sound/pci/cs5535audio/cs5535audio.c
+++ b/sound/pci/cs5535audio/cs5535audio.c
@@ -144,7 +144,7 @@ static unsigned short snd_cs5535audio_ac97_codec_read(struct snd_ac97 *ac97,
 	return snd_cs5535audio_codec_read(cs5535au, reg);
 }
 
-static int __devinit snd_cs5535audio_mixer(struct cs5535audio *cs5535au)
+static int snd_cs5535audio_mixer(struct cs5535audio *cs5535au)
 {
 	struct snd_card *card = cs5535au->card;
 	struct snd_ac97_bus *pbus;
@@ -270,7 +270,7 @@ static int snd_cs5535audio_dev_free(struct snd_device *device)
 	return snd_cs5535audio_free(cs5535au);
 }
 
-static int __devinit snd_cs5535audio_create(struct snd_card *card,
+static int snd_cs5535audio_create(struct snd_card *card,
 					    struct pci_dev *pci,
 					    struct cs5535audio **rcs5535au)
 {
@@ -338,7 +338,7 @@ pcifail:
 	return err;
 }
 
-static int __devinit snd_cs5535audio_probe(struct pci_dev *pci,
+static int snd_cs5535audio_probe(struct pci_dev *pci,
 					   const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/cs5535audio/cs5535audio.h b/sound/pci/cs5535audio/cs5535audio.h
index bb3cc64..536a6bb 100644
--- a/sound/pci/cs5535audio/cs5535audio.h
+++ b/sound/pci/cs5535audio/cs5535audio.h
@@ -97,9 +97,9 @@ struct cs5535audio {
 extern const struct dev_pm_ops snd_cs5535audio_pm;
 
 #ifdef CONFIG_OLPC
-void __devinit olpc_prequirks(struct snd_card *card,
+void olpc_prequirks(struct snd_card *card,
 		struct snd_ac97_template *ac97);
-int __devinit olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97);
+int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97);
 void __devexit olpc_quirks_cleanup(void);
 void olpc_analog_input(struct snd_ac97 *ac97, int on);
 void olpc_mic_bias(struct snd_ac97 *ac97, int on);
@@ -133,7 +133,7 @@ static inline void olpc_capture_open(struct snd_ac97 *ac97) { }
 static inline void olpc_capture_close(struct snd_ac97 *ac97) { }
 #endif
 
-int __devinit snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);
+int snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);
 
 #endif /* __SOUND_CS5535AUDIO_H */
 
diff --git a/sound/pci/cs5535audio/cs5535audio_olpc.c b/sound/pci/cs5535audio/cs5535audio_olpc.c
index 50da49b..149e21e 100644
--- a/sound/pci/cs5535audio/cs5535audio_olpc.c
+++ b/sound/pci/cs5535audio/cs5535audio_olpc.c
@@ -133,7 +133,7 @@ static struct snd_kcontrol_new olpc_cs5535audio_ctls[] __devinitdata = {
 },
 };
 
-void __devinit olpc_prequirks(struct snd_card *card,
+void olpc_prequirks(struct snd_card *card,
 		struct snd_ac97_template *ac97)
 {
 	if (!machine_is_olpc())
@@ -144,7 +144,7 @@ void __devinit olpc_prequirks(struct snd_card *card,
 		ac97->scaps |= AC97_SCAP_INV_EAPD;
 }
 
-int __devinit olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97)
+int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97)
 {
 	struct snd_ctl_elem_id elem;
 	int i, err;
diff --git a/sound/pci/cs5535audio/cs5535audio_pcm.c b/sound/pci/cs5535audio/cs5535audio_pcm.c
index dbf94b1..9ab01a7 100644
--- a/sound/pci/cs5535audio/cs5535audio_pcm.c
+++ b/sound/pci/cs5535audio/cs5535audio_pcm.c
@@ -422,7 +422,7 @@ static struct cs5535audio_dma_ops snd_cs5535audio_capture_dma_ops = {
         .read_dma_pntr = cs5535audio_capture_read_dma_pntr,
 };
 
-int __devinit snd_cs5535audio_pcm(struct cs5535audio *cs5535au)
+int snd_cs5535audio_pcm(struct cs5535audio *cs5535au)
 {
 	struct snd_pcm *pcm;
 	int err;
diff --git a/sound/pci/ctxfi/ctatc.c b/sound/pci/ctxfi/ctatc.c
index a2f997a..92054e7 100644
--- a/sound/pci/ctxfi/ctatc.c
+++ b/sound/pci/ctxfi/ctatc.c
@@ -1249,7 +1249,7 @@ static int atc_dev_free(struct snd_device *dev)
 	return ct_atc_destroy(atc);
 }
 
-static int __devinit atc_identify_card(struct ct_atc *atc, unsigned int ssid)
+static int atc_identify_card(struct ct_atc *atc, unsigned int ssid)
 {
 	const struct snd_pci_quirk *p;
 	const struct snd_pci_quirk *list;
@@ -1296,7 +1296,7 @@ static int __devinit atc_identify_card(struct ct_atc *atc, unsigned int ssid)
 	return 0;
 }
 
-int __devinit ct_atc_create_alsa_devs(struct ct_atc *atc)
+int ct_atc_create_alsa_devs(struct ct_atc *atc)
 {
 	enum CTALSADEVS i;
 	int err;
@@ -1319,7 +1319,7 @@ int __devinit ct_atc_create_alsa_devs(struct ct_atc *atc)
 	return 0;
 }
 
-static int __devinit atc_create_hw_devs(struct ct_atc *atc)
+static int atc_create_hw_devs(struct ct_atc *atc)
 {
 	struct hw *hw;
 	struct card_conf info = {0};
@@ -1665,7 +1665,7 @@ static struct ct_atc atc_preset __devinitdata = {
  *  Returns 0 if succeeds, or negative error code if fails.
  */
 
-int __devinit ct_atc_create(struct snd_card *card, struct pci_dev *pci,
+int ct_atc_create(struct snd_card *card, struct pci_dev *pci,
 			    unsigned int rsr, unsigned int msr,
 			    int chip_type, unsigned int ssid,
 			    struct ct_atc **ratc)
diff --git a/sound/pci/ctxfi/ctatc.h b/sound/pci/ctxfi/ctatc.h
index 69b51f9..490206b 100644
--- a/sound/pci/ctxfi/ctatc.h
+++ b/sound/pci/ctxfi/ctatc.h
@@ -152,9 +152,9 @@ struct ct_atc {
 };
 
 
-int __devinit ct_atc_create(struct snd_card *card, struct pci_dev *pci,
+int ct_atc_create(struct snd_card *card, struct pci_dev *pci,
 			    unsigned int rsr, unsigned int msr, int chip_type,
 			    unsigned int subsysid, struct ct_atc **ratc);
-int __devinit ct_atc_create_alsa_devs(struct ct_atc *atc);
+int ct_atc_create_alsa_devs(struct ct_atc *atc);
 
 #endif /* CTATC_H */
diff --git a/sound/pci/ctxfi/cthardware.c b/sound/pci/ctxfi/cthardware.c
index 8e64f48..e1c854a 100644
--- a/sound/pci/ctxfi/cthardware.c
+++ b/sound/pci/ctxfi/cthardware.c
@@ -20,7 +20,7 @@
 #include "cthw20k2.h"
 #include <linux/bug.h>
 
-int __devinit create_hw_obj(struct pci_dev *pci, enum CHIPTYP chip_type,
+int create_hw_obj(struct pci_dev *pci, enum CHIPTYP chip_type,
 			    enum CTCARDS model, struct hw **rhw)
 {
 	int err;
diff --git a/sound/pci/ctxfi/cthw20k1.c b/sound/pci/ctxfi/cthw20k1.c
index 4507f70..65a0169 100644
--- a/sound/pci/ctxfi/cthw20k1.c
+++ b/sound/pci/ctxfi/cthw20k1.c
@@ -2275,7 +2275,7 @@ static struct hw ct20k1_preset __devinitdata = {
 	.get_wc = get_wc,
 };
 
-int __devinit create_20k1_hw_obj(struct hw **rhw)
+int create_20k1_hw_obj(struct hw **rhw)
 {
 	struct hw20k1 *hw20k1;
 
diff --git a/sound/pci/ctxfi/cthw20k2.c b/sound/pci/ctxfi/cthw20k2.c
index b9c9349..3f2a3ad 100644
--- a/sound/pci/ctxfi/cthw20k2.c
+++ b/sound/pci/ctxfi/cthw20k2.c
@@ -2345,7 +2345,7 @@ static struct hw ct20k2_preset __devinitdata = {
 	.get_wc = get_wc,
 };
 
-int __devinit create_20k2_hw_obj(struct hw **rhw)
+int create_20k2_hw_obj(struct hw **rhw)
 {
 	struct hw20k2 *hw20k2;
 
diff --git a/sound/pci/ctxfi/xfi.c b/sound/pci/ctxfi/xfi.c
index f5a311c..8275ac3 100644
--- a/sound/pci/ctxfi/xfi.c
+++ b/sound/pci/ctxfi/xfi.c
@@ -56,8 +56,7 @@ static DEFINE_PCI_DEVICE_TABLE(ct_pci_dev_ids) = {
 };
 MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids);
 
-static int __devinit
-ct_card_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
+static int ct_card_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 {
 	static int dev;
 	struct snd_card *card;
diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
index d9181bd..3ba1585 100644
--- a/sound/pci/echoaudio/echoaudio.c
+++ b/sound/pci/echoaudio/echoaudio.c
@@ -907,7 +907,7 @@ static int snd_echo_preallocate_pages(struct snd_pcm *pcm, struct device *dev)
 
 
 /*<--snd_echo_probe() */
-static int __devinit snd_echo_new_pcm(struct echoaudio *chip)
+static int snd_echo_new_pcm(struct echoaudio *chip)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1940,7 +1940,7 @@ static int snd_echo_dev_free(struct snd_device *device)
 
 
 /* <--snd_echo_probe() */
-static __devinit int snd_echo_create(struct snd_card *card,
+static int snd_echo_create(struct snd_card *card,
 				     struct pci_dev *pci,
 				     struct echoaudio **rchip)
 {
@@ -2040,7 +2040,7 @@ static __devinit int snd_echo_create(struct snd_card *card,
 
 
 /* constructor */
-static int __devinit snd_echo_probe(struct pci_dev *pci,
+static int snd_echo_probe(struct pci_dev *pci,
 				    const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/echoaudio/echoaudio.h b/sound/pci/echoaudio/echoaudio.h
index e158369..8e55b8e 100644
--- a/sound/pci/echoaudio/echoaudio.h
+++ b/sound/pci/echoaudio/echoaudio.h
@@ -475,7 +475,7 @@ static int enable_midi_input(struct echoaudio *chip, char enable);
 static void snd_echo_midi_output_trigger(
 			struct snd_rawmidi_substream *substream, int up);
 static int midi_service_irq(struct echoaudio *chip);
-static int __devinit snd_echo_midi_create(struct snd_card *card,
+static int snd_echo_midi_create(struct snd_card *card,
 					  struct echoaudio *chip);
 #endif
 
diff --git a/sound/pci/echoaudio/midi.c b/sound/pci/echoaudio/midi.c
index a953d14..e87265f 100644
--- a/sound/pci/echoaudio/midi.c
+++ b/sound/pci/echoaudio/midi.c
@@ -307,7 +307,7 @@ static struct snd_rawmidi_ops snd_echo_midi_output = {
 
 
 /* <--snd_echo_probe() */
-static int __devinit snd_echo_midi_create(struct snd_card *card,
+static int snd_echo_midi_create(struct snd_card *card,
 					  struct echoaudio *chip)
 {
 	int err;
diff --git a/sound/pci/emu10k1/emu10k1.c b/sound/pci/emu10k1/emu10k1.c
index 6e3cbb3..77b316d 100644
--- a/sound/pci/emu10k1/emu10k1.c
+++ b/sound/pci/emu10k1/emu10k1.c
@@ -99,7 +99,7 @@ static DEFINE_PCI_DEVICE_TABLE(snd_emu10k1_ids) = {
 
 MODULE_DEVICE_TABLE(pci, snd_emu10k1_ids);
 
-static int __devinit snd_card_emu10k1_probe(struct pci_dev *pci,
+static int snd_card_emu10k1_probe(struct pci_dev *pci,
 					    const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index c21adb6..09dcc1f 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -1738,7 +1738,7 @@ static struct snd_emu_chip_details emu_chip_details[] = {
 	{ } /* terminator */
 };
 
-int __devinit snd_emu10k1_create(struct snd_card *card,
+int snd_emu10k1_create(struct snd_card *card,
 		       struct pci_dev *pci,
 		       unsigned short extin_mask,
 		       unsigned short extout_mask,
@@ -2025,7 +2025,7 @@ static unsigned char saved_regs_audigy[] = {
 	0xff /* end */
 };
 
-static int __devinit alloc_pm_buffer(struct snd_emu10k1 *emu)
+static int alloc_pm_buffer(struct snd_emu10k1 *emu)
 {
 	int size;
 
diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c
index f2c0620..45c7acb 100644
--- a/sound/pci/emu10k1/emu10k1x.c
+++ b/sound/pci/emu10k1/emu10k1x.c
@@ -842,7 +842,7 @@ static const struct snd_pcm_chmap_elem clfe_map[] = {
 	{ }
 };
 
-static int __devinit snd_emu10k1x_pcm(struct emu10k1x *emu, int device, struct snd_pcm **rpcm)
+static int snd_emu10k1x_pcm(struct emu10k1x *emu, int device, struct snd_pcm **rpcm)
 {
 	struct snd_pcm *pcm;
 	const struct snd_pcm_chmap_elem *map = NULL;
@@ -902,7 +902,7 @@ static int __devinit snd_emu10k1x_pcm(struct emu10k1x *emu, int device, struct s
 	return 0;
 }
 
-static int __devinit snd_emu10k1x_create(struct snd_card *card,
+static int snd_emu10k1x_create(struct snd_card *card,
 					 struct pci_dev *pci,
 					 struct emu10k1x **rchip)
 {
@@ -1066,7 +1066,7 @@ static void snd_emu10k1x_proc_reg_write(struct snd_info_entry *entry,
 	}
 }
 
-static int __devinit snd_emu10k1x_proc_init(struct emu10k1x * emu)
+static int snd_emu10k1x_proc_init(struct emu10k1x * emu)
 {
 	struct snd_info_entry *entry;
 	
@@ -1194,7 +1194,7 @@ static struct snd_kcontrol_new snd_emu10k1x_spdif_control =
 	.put =          snd_emu10k1x_spdif_put
 };
 
-static int __devinit snd_emu10k1x_mixer(struct emu10k1x *emu)
+static int snd_emu10k1x_mixer(struct emu10k1x *emu)
 {
 	int err;
 	struct snd_kcontrol *kctl;
@@ -1507,7 +1507,7 @@ static void snd_emu10k1x_midi_free(struct snd_rawmidi *rmidi)
 	midi->rmidi = NULL;
 }
 
-static int __devinit emu10k1x_midi_init(struct emu10k1x *emu,
+static int emu10k1x_midi_init(struct emu10k1x *emu,
 					struct emu10k1x_midi *midi, int device, char *name)
 {
 	struct snd_rawmidi *rmidi;
@@ -1531,7 +1531,7 @@ static int __devinit emu10k1x_midi_init(struct emu10k1x *emu,
 	return 0;
 }
 
-static int __devinit snd_emu10k1x_midi(struct emu10k1x *emu)
+static int snd_emu10k1x_midi(struct emu10k1x *emu)
 {
 	struct emu10k1x_midi *midi = &emu->midi;
 	int err;
@@ -1548,7 +1548,7 @@ static int __devinit snd_emu10k1x_midi(struct emu10k1x *emu)
 	return 0;
 }
 
-static int __devinit snd_emu10k1x_probe(struct pci_dev *pci,
+static int snd_emu10k1x_probe(struct pci_dev *pci,
 					const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index 5241995..a9ad7fb 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -1073,8 +1073,7 @@ static int snd_emu10k1_ipcm_peek(struct snd_emu10k1 *emu,
 #define SND_EMU10K1_PLAYBACK_CHANNELS	8
 #define SND_EMU10K1_CAPTURE_CHANNELS	4
 
-static void __devinit
-snd_emu10k1_init_mono_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
+static void snd_emu10k1_init_mono_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
 			      const char *name, int gpr, int defval)
 {
 	ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
@@ -1094,8 +1093,7 @@ snd_emu10k1_init_mono_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
 	}
 }
 
-static void __devinit
-snd_emu10k1_init_stereo_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
+static void snd_emu10k1_init_stereo_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
 				const char *name, int gpr, int defval)
 {
 	ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
@@ -1116,8 +1114,7 @@ snd_emu10k1_init_stereo_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
 	}
 }
 
-static void __devinit
-snd_emu10k1_init_mono_onoff_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
+static void snd_emu10k1_init_mono_onoff_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
 				    const char *name, int gpr, int defval)
 {
 	ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
@@ -1129,8 +1126,7 @@ snd_emu10k1_init_mono_onoff_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
 	ctl->translation = EMU10K1_GPR_TRANSLATION_ONOFF;
 }
 
-static void __devinit
-snd_emu10k1_init_stereo_onoff_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
+static void snd_emu10k1_init_stereo_onoff_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
 				      const char *name, int gpr, int defval)
 {
 	ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
@@ -1168,7 +1164,7 @@ static int snd_emu10k1_audigy_dsp_convert_32_to_2x16(
  * initial DSP configuration for Audigy
  */
 
-static int __devinit _snd_emu10k1_audigy_init_efx(struct snd_emu10k1 *emu)
+static int _snd_emu10k1_audigy_init_efx(struct snd_emu10k1 *emu)
 {
 	int err, i, z, gpr, nctl;
 	int bit_shifter16;
@@ -1757,14 +1753,14 @@ A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input))
 
 /* when volume = max, then copy only to avoid volume modification */
 /* with iMAC0 (negative values) */
-static void __devinit _volume(struct snd_emu10k1_fx8010_code *icode, u32 *ptr, u32 dst, u32 src, u32 vol)
+static void _volume(struct snd_emu10k1_fx8010_code *icode, u32 *ptr, u32 dst, u32 src, u32 vol)
 {
 	OP(icode, ptr, iMAC0, dst, C_00000000, src, vol);
 	OP(icode, ptr, iANDXOR, C_00000000, vol, C_ffffffff, C_7fffffff);
 	OP(icode, ptr, iSKIP, GPR_COND, GPR_COND, CC_REG_NONZERO, C_00000001);
 	OP(icode, ptr, iACC3, dst, src, C_00000000, C_00000000);
 }
-static void __devinit _volume_add(struct snd_emu10k1_fx8010_code *icode, u32 *ptr, u32 dst, u32 src, u32 vol)
+static void _volume_add(struct snd_emu10k1_fx8010_code *icode, u32 *ptr, u32 dst, u32 src, u32 vol)
 {
 	OP(icode, ptr, iANDXOR, C_00000000, vol, C_ffffffff, C_7fffffff);
 	OP(icode, ptr, iSKIP, GPR_COND, GPR_COND, CC_REG_NONZERO, C_00000002);
@@ -1772,7 +1768,7 @@ static void __devinit _volume_add(struct snd_emu10k1_fx8010_code *icode, u32 *pt
 	OP(icode, ptr, iSKIP, C_00000000, C_7fffffff, C_7fffffff, C_00000001);
 	OP(icode, ptr, iMAC0, dst, dst, src, vol);
 }
-static void __devinit _volume_out(struct snd_emu10k1_fx8010_code *icode, u32 *ptr, u32 dst, u32 src, u32 vol)
+static void _volume_out(struct snd_emu10k1_fx8010_code *icode, u32 *ptr, u32 dst, u32 src, u32 vol)
 {
 	OP(icode, ptr, iANDXOR, C_00000000, vol, C_ffffffff, C_7fffffff);
 	OP(icode, ptr, iSKIP, GPR_COND, GPR_COND, CC_REG_NONZERO, C_00000002);
@@ -1803,7 +1799,7 @@ static void __devinit _volume_out(struct snd_emu10k1_fx8010_code *icode, u32 *pt
 		_SWITCH_NEG(icode, ptr, GPR(dst), GPR(src))
 
 
-static int __devinit _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
+static int _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
 {
 	int err, i, z, gpr, tmp, playback, capture;
 	u32 ptr;
@@ -2373,7 +2369,7 @@ static int __devinit _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
 	return err;
 }
 
-int __devinit snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
+int snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
 {
 	spin_lock_init(&emu->fx8010.irq_lock);
 	INIT_LIST_HEAD(&emu->fx8010.gpr_ctl);
@@ -2626,7 +2622,7 @@ static int snd_emu10k1_fx8010_release(struct snd_hwdep * hw, struct file *file)
 	return 0;
 }
 
-int __devinit snd_emu10k1_fx8010_new(struct snd_emu10k1 *emu, int device, struct snd_hwdep ** rhwdep)
+int snd_emu10k1_fx8010_new(struct snd_emu10k1 *emu, int device, struct snd_hwdep ** rhwdep)
 {
 	struct snd_hwdep *hw;
 	int err;
@@ -2647,7 +2643,7 @@ int __devinit snd_emu10k1_fx8010_new(struct snd_emu10k1 *emu, int device, struct
 }
 
 #ifdef CONFIG_PM_SLEEP
-int __devinit snd_emu10k1_efx_alloc_pm_buffer(struct snd_emu10k1 *emu)
+int snd_emu10k1_efx_alloc_pm_buffer(struct snd_emu10k1 *emu)
 {
 	int len;
 
diff --git a/sound/pci/emu10k1/emumixer.c b/sound/pci/emu10k1/emumixer.c
index 9d890a5..00ff418 100644
--- a/sound/pci/emu10k1/emumixer.c
+++ b/sound/pci/emu10k1/emumixer.c
@@ -1716,7 +1716,7 @@ static int rename_ctl(struct snd_card *card, const char *src, const char *dst)
 	return -ENOENT;
 }
 
-int __devinit snd_emu10k1_mixer(struct snd_emu10k1 *emu,
+int snd_emu10k1_mixer(struct snd_emu10k1 *emu,
 				int pcm_device, int multi_device)
 {
 	int err, pcm;
diff --git a/sound/pci/emu10k1/emumpu401.c b/sound/pci/emu10k1/emumpu401.c
index bab5648..1ec9124 100644
--- a/sound/pci/emu10k1/emumpu401.c
+++ b/sound/pci/emu10k1/emumpu401.c
@@ -326,7 +326,7 @@ static void snd_emu10k1_midi_free(struct snd_rawmidi *rmidi)
 	midi->rmidi = NULL;
 }
 
-static int __devinit emu10k1_midi_init(struct snd_emu10k1 *emu, struct snd_emu10k1_midi *midi, int device, char *name)
+static int emu10k1_midi_init(struct snd_emu10k1 *emu, struct snd_emu10k1_midi *midi, int device, char *name)
 {
 	struct snd_rawmidi *rmidi;
 	int err;
@@ -349,7 +349,7 @@ static int __devinit emu10k1_midi_init(struct snd_emu10k1 *emu, struct snd_emu10
 	return 0;
 }
 
-int __devinit snd_emu10k1_midi(struct snd_emu10k1 *emu)
+int snd_emu10k1_midi(struct snd_emu10k1 *emu)
 {
 	struct snd_emu10k1_midi *midi = &emu->midi;
 	int err;
@@ -366,7 +366,7 @@ int __devinit snd_emu10k1_midi(struct snd_emu10k1 *emu)
 	return 0;
 }
 
-int __devinit snd_emu10k1_audigy_midi(struct snd_emu10k1 *emu)
+int snd_emu10k1_audigy_midi(struct snd_emu10k1 *emu)
 {
 	struct snd_emu10k1_midi *midi;
 	int err;
diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c
index 0e6664f..febfa3b 100644
--- a/sound/pci/emu10k1/emupcm.c
+++ b/sound/pci/emu10k1/emupcm.c
@@ -1391,7 +1391,7 @@ static struct snd_pcm_ops snd_emu10k1_efx_playback_ops = {
 	.page =			snd_pcm_sgbuf_ops_page,
 };
 
-int __devinit snd_emu10k1_pcm(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
+int snd_emu10k1_pcm(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	struct snd_pcm_substream *substream;
@@ -1426,7 +1426,7 @@ int __devinit snd_emu10k1_pcm(struct snd_emu10k1 * emu, int device, struct snd_p
 	return 0;
 }
 
-int __devinit snd_emu10k1_pcm_multi(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
+int snd_emu10k1_pcm_multi(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	struct snd_pcm_substream *substream;
@@ -1469,7 +1469,7 @@ static struct snd_pcm_ops snd_emu10k1_capture_mic_ops = {
 	.pointer =		snd_emu10k1_capture_pointer,
 };
 
-int __devinit snd_emu10k1_pcm_mic(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
+int snd_emu10k1_pcm_mic(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1810,7 +1810,7 @@ static struct snd_pcm_ops snd_emu10k1_fx8010_playback_ops = {
 	.ack =			snd_emu10k1_fx8010_playback_transfer,
 };
 
-int __devinit snd_emu10k1_pcm_efx(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
+int snd_emu10k1_pcm_efx(struct snd_emu10k1 * emu, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	struct snd_kcontrol *kctl;
diff --git a/sound/pci/emu10k1/emuproc.c b/sound/pci/emu10k1/emuproc.c
index bc38dd4..b51d248 100644
--- a/sound/pci/emu10k1/emuproc.c
+++ b/sound/pci/emu10k1/emuproc.c
@@ -577,7 +577,7 @@ static struct snd_info_entry_ops snd_emu10k1_proc_ops_fx8010 = {
 	.read = snd_emu10k1_fx8010_read,
 };
 
-int __devinit snd_emu10k1_proc_init(struct snd_emu10k1 * emu)
+int snd_emu10k1_proc_init(struct snd_emu10k1 * emu)
 {
 	struct snd_info_entry *entry;
 #ifdef CONFIG_SND_DEBUG
diff --git a/sound/pci/emu10k1/p16v.c b/sound/pci/emu10k1/p16v.c
index 88cec6b..3f08dd7 100644
--- a/sound/pci/emu10k1/p16v.c
+++ b/sound/pci/emu10k1/p16v.c
@@ -637,7 +637,7 @@ int snd_p16v_free(struct snd_emu10k1 *chip)
 	return 0;
 }
 
-int __devinit snd_p16v_pcm(struct snd_emu10k1 *emu, int device, struct snd_pcm **rpcm)
+int snd_p16v_pcm(struct snd_emu10k1 *emu, int device, struct snd_pcm **rpcm)
 {
 	struct snd_pcm *pcm;
 	struct snd_pcm_substream *substream;
@@ -880,7 +880,7 @@ static struct snd_kcontrol_new p16v_mixer_controls[] __devinitdata = {
 };
 
 
-int __devinit snd_p16v_mixer(struct snd_emu10k1 *emu)
+int snd_p16v_mixer(struct snd_emu10k1 *emu)
 {
 	int i, err;
         struct snd_card *card = emu->card;
@@ -897,7 +897,7 @@ int __devinit snd_p16v_mixer(struct snd_emu10k1 *emu)
 
 #define NUM_CHS	1	/* up to 4, but only first channel is used */
 
-int __devinit snd_p16v_alloc_pm_buffer(struct snd_emu10k1 *emu)
+int snd_p16v_alloc_pm_buffer(struct snd_emu10k1 *emu)
 {
 	emu->p16v_saved = vmalloc(NUM_CHS * 4 * 0x80);
 	if (! emu->p16v_saved)
diff --git a/sound/pci/emu10k1/timer.c b/sound/pci/emu10k1/timer.c
index 72321e9..b69a7f8 100644
--- a/sound/pci/emu10k1/timer.c
+++ b/sound/pci/emu10k1/timer.c
@@ -75,7 +75,7 @@ static struct snd_timer_hardware snd_emu10k1_timer_hw = {
 	.precise_resolution = snd_emu10k1_timer_precise_resolution,
 };
 
-int __devinit snd_emu10k1_timer(struct snd_emu10k1 *emu, int device)
+int snd_emu10k1_timer(struct snd_emu10k1 *emu, int device)
 {
 	struct snd_timer *timer = NULL;
 	struct snd_timer_id tid;
diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c
index f631705..5ed22dc 100644
--- a/sound/pci/ens1370.c
+++ b/sound/pci/ens1370.c
@@ -1268,7 +1268,7 @@ static const struct snd_pcm_chmap_elem surround_map[] = {
 	{ }
 };
 
-static int __devinit snd_ensoniq_pcm(struct ensoniq * ensoniq, int device,
+static int snd_ensoniq_pcm(struct ensoniq * ensoniq, int device,
 				     struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
@@ -1310,7 +1310,7 @@ static int __devinit snd_ensoniq_pcm(struct ensoniq * ensoniq, int device,
 	return 0;
 }
 
-static int __devinit snd_ensoniq_pcm2(struct ensoniq * ensoniq, int device,
+static int snd_ensoniq_pcm2(struct ensoniq * ensoniq, int device,
 				      struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
@@ -1640,7 +1640,7 @@ static struct snd_pci_quirk ens1373_line_quirk[] __devinitdata = {
 	{ } /* end */
 };
 
-static int __devinit snd_ensoniq_1371_mixer(struct ensoniq *ensoniq,
+static int snd_ensoniq_1371_mixer(struct ensoniq *ensoniq,
 					    int has_spdif, int has_line)
 {
 	struct snd_card *card = ensoniq->card;
@@ -1762,7 +1762,7 @@ static void snd_ensoniq_mixer_free_ak4531(struct snd_ak4531 *ak4531)
 	ensoniq->u.es1370.ak4531 = NULL;
 }
 
-static int __devinit snd_ensoniq_1370_mixer(struct ensoniq * ensoniq)
+static int snd_ensoniq_1370_mixer(struct ensoniq * ensoniq)
 {
 	struct snd_card *card = ensoniq->card;
 	struct snd_ak4531 ak4531;
@@ -1796,7 +1796,7 @@ static int __devinit snd_ensoniq_1370_mixer(struct ensoniq * ensoniq)
 #ifdef SUPPORT_JOYSTICK
 
 #ifdef CHIP1371
-static int __devinit snd_ensoniq_get_joystick_port(int dev)
+static int snd_ensoniq_get_joystick_port(int dev)
 {
 	switch (joystick_port[dev]) {
 	case 0: /* disabled */
@@ -1819,7 +1819,7 @@ static inline int snd_ensoniq_get_joystick_port(int dev)
 }
 #endif
 
-static int __devinit snd_ensoniq_create_gameport(struct ensoniq *ensoniq, int dev)
+static int snd_ensoniq_create_gameport(struct ensoniq *ensoniq, int dev)
 {
 	struct gameport *gp;
 	int io_port;
@@ -1913,7 +1913,7 @@ static void snd_ensoniq_proc_read(struct snd_info_entry *entry,
 #endif
 }
 
-static void __devinit snd_ensoniq_proc_init(struct ensoniq * ensoniq)
+static void snd_ensoniq_proc_init(struct ensoniq * ensoniq)
 {
 	struct snd_info_entry *entry;
 
@@ -2106,7 +2106,7 @@ static SIMPLE_DEV_PM_OPS(snd_ensoniq_pm, snd_ensoniq_suspend, snd_ensoniq_resume
 #define SND_ENSONIQ_PM_OPS	NULL
 #endif /* CONFIG_PM_SLEEP */
 
-static int __devinit snd_ensoniq_create(struct snd_card *card,
+static int snd_ensoniq_create(struct snd_card *card,
 				     struct pci_dev *pci,
 				     struct ensoniq ** rensoniq)
 {
@@ -2361,7 +2361,7 @@ static struct snd_rawmidi_ops snd_ensoniq_midi_input =
 	.trigger =	snd_ensoniq_midi_input_trigger,
 };
 
-static int __devinit snd_ensoniq_midi(struct ensoniq * ensoniq, int device,
+static int snd_ensoniq_midi(struct ensoniq * ensoniq, int device,
 				      struct snd_rawmidi **rrawmidi)
 {
 	struct snd_rawmidi *rmidi;
@@ -2422,7 +2422,7 @@ static irqreturn_t snd_audiopci_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int __devinit snd_audiopci_probe(struct pci_dev *pci,
+static int snd_audiopci_probe(struct pci_dev *pci,
 					const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c
index 83b889f..5441377 100644
--- a/sound/pci/es1938.c
+++ b/sound/pci/es1938.c
@@ -1027,7 +1027,7 @@ static struct snd_pcm_ops snd_es1938_capture_ops = {
 	.copy =		snd_es1938_capture_copy,
 };
 
-static int __devinit snd_es1938_new_pcm(struct es1938 *chip, int device)
+static int snd_es1938_new_pcm(struct es1938 *chip, int device)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1539,7 +1539,7 @@ static SIMPLE_DEV_PM_OPS(es1938_pm, es1938_suspend, es1938_resume);
 #endif /* CONFIG_PM_SLEEP */
 
 #ifdef SUPPORT_JOYSTICK
-static int __devinit snd_es1938_create_gameport(struct es1938 *chip)
+static int snd_es1938_create_gameport(struct es1938 *chip)
 {
 	struct gameport *gp;
 
@@ -1594,7 +1594,7 @@ static int snd_es1938_dev_free(struct snd_device *device)
 	return snd_es1938_free(chip);
 }
 
-static int __devinit snd_es1938_create(struct snd_card *card,
+static int snd_es1938_create(struct snd_card *card,
 				    struct pci_dev * pci,
 				    struct es1938 ** rchip)
 {
@@ -1754,7 +1754,7 @@ static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id)
 
 #define ES1938_DMA_SIZE 64
 
-static int __devinit snd_es1938_mixer(struct es1938 *chip)
+static int snd_es1938_mixer(struct es1938 *chip)
 {
 	struct snd_card *card;
 	unsigned int idx;
@@ -1792,7 +1792,7 @@ static int __devinit snd_es1938_mixer(struct es1938 *chip)
 }
        
 
-static int __devinit snd_es1938_probe(struct pci_dev *pci,
+static int snd_es1938_probe(struct pci_dev *pci,
 				      const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c
index 90e29c5..076e461 100644
--- a/sound/pci/es1968.c
+++ b/sound/pci/es1968.c
@@ -1429,8 +1429,7 @@ static void snd_es1968_free_dmabuf(struct es1968 *chip)
 	}
 }
 
-static int __devinit
-snd_es1968_init_dmabuf(struct es1968 *chip)
+static int snd_es1968_init_dmabuf(struct es1968 *chip)
 {
 	int err;
 	struct esm_memory *chunk;
@@ -1704,7 +1703,7 @@ static struct snd_pcm_ops snd_es1968_capture_ops = {
  */
 #define CLOCK_MEASURE_BUFSIZE	16768	/* enough large for a single shot */
 
-static void __devinit es1968_measure_clock(struct es1968 *chip)
+static void es1968_measure_clock(struct es1968 *chip)
 {
 	int i, apu;
 	unsigned int pa, offset, t;
@@ -1806,8 +1805,7 @@ static void snd_es1968_pcm_free(struct snd_pcm *pcm)
 	esm->pcm = NULL;
 }
 
-static int __devinit
-snd_es1968_pcm(struct es1968 *chip, int device)
+static int snd_es1968_pcm(struct es1968 *chip, int device)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -2016,8 +2014,7 @@ static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id)
  *  Mixer stuff
  */
 
-static int __devinit
-snd_es1968_mixer(struct es1968 *chip)
+static int snd_es1968_mixer(struct es1968 *chip)
 {
 	struct snd_ac97_bus *pbus;
 	struct snd_ac97_template ac97;
@@ -2465,7 +2462,7 @@ static SIMPLE_DEV_PM_OPS(es1968_pm, es1968_suspend, es1968_resume);
 
 #ifdef SUPPORT_JOYSTICK
 #define JOYSTICK_ADDR	0x200
-static int __devinit snd_es1968_create_gameport(struct es1968 *chip, int dev)
+static int snd_es1968_create_gameport(struct es1968 *chip, int dev)
 {
 	struct gameport *gp;
 	struct resource *r;
@@ -2516,7 +2513,7 @@ static inline void snd_es1968_free_gameport(struct es1968 *chip) { }
 #endif
 
 #ifdef CONFIG_SND_ES1968_INPUT
-static int __devinit snd_es1968_input_register(struct es1968 *chip)
+static int snd_es1968_input_register(struct es1968 *chip)
 {
 	struct input_dev *input_dev;
 	int err;
@@ -2668,7 +2665,7 @@ static struct ess_device_list mpu_blacklist[] __devinitdata = {
 	{ TYPE_MAESTRO2, 0x125d },
 };
 
-static int __devinit snd_es1968_create(struct snd_card *card,
+static int snd_es1968_create(struct snd_card *card,
 				       struct pci_dev *pci,
 				       int total_bufsize,
 				       int play_streams,
@@ -2795,7 +2792,7 @@ static int __devinit snd_es1968_create(struct snd_card *card,
 
 /*
  */
-static int __devinit snd_es1968_probe(struct pci_dev *pci,
+static int snd_es1968_probe(struct pci_dev *pci,
 				      const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index 8ec35dd..aa18b03 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -689,7 +689,7 @@ static struct snd_pcm_ops snd_fm801_capture_ops = {
 	.pointer =	snd_fm801_capture_pointer,
 };
 
-static int __devinit snd_fm801_pcm(struct fm801 *chip, int device, struct snd_pcm ** rpcm)
+static int snd_fm801_pcm(struct fm801 *chip, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1030,7 +1030,7 @@ static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
 	}
 }
 
-static int __devinit snd_fm801_mixer(struct fm801 *chip)
+static int snd_fm801_mixer(struct fm801 *chip)
 {
 	struct snd_ac97_template ac97;
 	unsigned int i;
@@ -1191,7 +1191,7 @@ static int snd_fm801_dev_free(struct snd_device *device)
 	return snd_fm801_free(chip);
 }
 
-static int __devinit snd_fm801_create(struct snd_card *card,
+static int snd_fm801_create(struct snd_card *card,
 				      struct pci_dev * pci,
 				      int tea575x_tuner,
 				      int radio_nr,
@@ -1296,7 +1296,7 @@ static int __devinit snd_fm801_create(struct snd_card *card,
 	return 0;
 }
 
-static int __devinit snd_card_fm801_probe(struct pci_dev *pci,
+static int snd_card_fm801_probe(struct pci_dev *pci,
 					  const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index bad2ba0..716d233 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -599,7 +599,7 @@ enum {
 #define DELAYED_INIT_MARK
 #define DELAYED_INITDATA_MARK
 #else
-#define DELAYED_INIT_MARK	__devinit
+#define DELAYED_INIT_MARK
 #define DELAYED_INITDATA_MARK	__devinitdata
 #endif
 
@@ -1708,7 +1708,7 @@ static int DELAYED_INIT_MARK azx_codec_create(struct azx *chip, const char *mode
 }
 
 /* configure each codec instance */
-static int __devinit azx_codec_configure(struct azx *chip)
+static int azx_codec_configure(struct azx *chip)
 {
 	struct hda_codec *codec;
 	list_for_each_entry(codec, &chip->bus->codec_list, list) {
@@ -2479,7 +2479,7 @@ azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
 /*
  * mixer creation - all stuff is implemented in hda module
  */
-static int __devinit azx_mixer_create(struct azx *chip)
+static int azx_mixer_create(struct azx *chip)
 {
 	return snd_hda_build_controls(chip->bus);
 }
@@ -2488,7 +2488,7 @@ static int __devinit azx_mixer_create(struct azx *chip)
 /*
  * initialize SD streams
  */
-static int __devinit azx_init_stream(struct azx *chip)
+static int azx_init_stream(struct azx *chip)
 {
 	int i;
 
@@ -2726,7 +2726,7 @@ static int DELAYED_INIT_MARK azx_first_init(struct azx *chip);
 static int DELAYED_INIT_MARK azx_probe_continue(struct azx *chip);
 
 #ifdef SUPPORT_VGA_SWITCHEROO
-static struct pci_dev __devinit *get_bound_vga(struct pci_dev *pci);
+static struct pci_dev *get_bound_vga(struct pci_dev *pci);
 
 static void azx_vs_set_state(struct pci_dev *pci,
 			     enum vga_switcheroo_state state)
@@ -2790,7 +2790,7 @@ static bool azx_vs_can_switch(struct pci_dev *pci)
 	return true;
 }
 
-static void __devinit init_vga_switcheroo(struct azx *chip)
+static void init_vga_switcheroo(struct azx *chip)
 {
 	struct pci_dev *p = get_bound_vga(chip->pci);
 	if (p) {
@@ -2807,7 +2807,7 @@ static const struct vga_switcheroo_client_ops azx_vs_ops = {
 	.can_switch = azx_vs_can_switch,
 };
 
-static int __devinit register_vga_switcheroo(struct azx *chip)
+static int register_vga_switcheroo(struct azx *chip)
 {
 	int err;
 
@@ -2899,7 +2899,7 @@ static int azx_dev_free(struct snd_device *device)
 /*
  * Check of disabled HDMI controller by vga-switcheroo
  */
-static struct pci_dev __devinit *get_bound_vga(struct pci_dev *pci)
+static struct pci_dev *get_bound_vga(struct pci_dev *pci)
 {
 	struct pci_dev *p;
 
@@ -2922,7 +2922,7 @@ static struct pci_dev __devinit *get_bound_vga(struct pci_dev *pci)
 	return NULL;
 }
 
-static bool __devinit check_hdmi_disabled(struct pci_dev *pci)
+static bool check_hdmi_disabled(struct pci_dev *pci)
 {
 	bool vga_inactive = false;
 	struct pci_dev *p = get_bound_vga(pci);
@@ -2957,7 +2957,7 @@ static struct snd_pci_quirk position_fix_list[] __devinitdata = {
 	{}
 };
 
-static int __devinit check_position_fix(struct azx *chip, int fix)
+static int check_position_fix(struct azx *chip, int fix)
 {
 	const struct snd_pci_quirk *q;
 
@@ -3015,7 +3015,7 @@ static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
 
 #define AZX_FORCE_CODEC_MASK	0x100
 
-static void __devinit check_probe_mask(struct azx *chip, int dev)
+static void check_probe_mask(struct azx *chip, int dev)
 {
 	const struct snd_pci_quirk *q;
 
@@ -3052,7 +3052,7 @@ static struct snd_pci_quirk msi_black_list[] __devinitdata = {
 	{}
 };
 
-static void __devinit check_msi(struct azx *chip)
+static void check_msi(struct azx *chip)
 {
 	const struct snd_pci_quirk *q;
 
@@ -3078,7 +3078,7 @@ static void __devinit check_msi(struct azx *chip)
 }
 
 /* check the snoop mode availability */
-static void __devinit azx_check_snoop_available(struct azx *chip)
+static void azx_check_snoop_available(struct azx *chip)
 {
 	bool snoop = chip->snoop;
 
@@ -3110,7 +3110,7 @@ static void __devinit azx_check_snoop_available(struct azx *chip)
 /*
  * constructor
  */
-static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
+static int azx_create(struct snd_card *card, struct pci_dev *pci,
 				int dev, unsigned int driver_caps,
 				struct azx **rchip)
 {
@@ -3409,7 +3409,7 @@ static void azx_firmware_cb(const struct firmware *fw, void *context)
 }
 #endif
 
-static int __devinit azx_probe(struct pci_dev *pci,
+static int azx_probe(struct pci_dev *pci,
 			       const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/ice1712/amp.c b/sound/pci/ice1712/amp.c
index d9bd27b..943cf4b 100644
--- a/sound/pci/ice1712/amp.c
+++ b/sound/pci/ice1712/amp.c
@@ -37,7 +37,7 @@ static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val)
 	snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff);
 }
 
-static int __devinit snd_vt1724_amp_init(struct snd_ice1712 *ice)
+static int snd_vt1724_amp_init(struct snd_ice1712 *ice)
 {
 	static const unsigned short wm_inits[] = {
 		WM_ATTEN_L,	0x0000,	/* 0 db */
@@ -65,7 +65,7 @@ static int __devinit snd_vt1724_amp_init(struct snd_ice1712 *ice)
 	return 0;
 }
 
-static int __devinit snd_vt1724_amp_add_controls(struct snd_ice1712 *ice)
+static int snd_vt1724_amp_add_controls(struct snd_ice1712 *ice)
 {
 	if (ice->ac97)
 		/* we use pins 39 and 41 of the VT1616 for left and right
diff --git a/sound/pci/ice1712/aureon.c b/sound/pci/ice1712/aureon.c
index ce9941c..8d16da9 100644
--- a/sound/pci/ice1712/aureon.c
+++ b/sound/pci/ice1712/aureon.c
@@ -1896,7 +1896,7 @@ static struct snd_kcontrol_new cs8415_controls[] __devinitdata = {
 	}
 };
 
-static int __devinit aureon_add_controls(struct snd_ice1712 *ice)
+static int aureon_add_controls(struct snd_ice1712 *ice)
 {
 	unsigned int i, counts;
 	int err;
@@ -2124,7 +2124,7 @@ static int aureon_resume(struct snd_ice1712 *ice)
 /*
  * initialize the chip
  */
-static int __devinit aureon_init(struct snd_ice1712 *ice)
+static int aureon_init(struct snd_ice1712 *ice)
 {
 	struct aureon_spec *spec;
 	int i, err;
diff --git a/sound/pci/ice1712/delta.c b/sound/pci/ice1712/delta.c
index bbef99b..1e8e5cf 100644
--- a/sound/pci/ice1712/delta.c
+++ b/sound/pci/ice1712/delta.c
@@ -575,7 +575,7 @@ static struct snd_ak4xxx_private akm_vx442_priv __devinitdata = {
 	.mask_flags = 0,
 };
 
-static int __devinit snd_ice1712_delta_init(struct snd_ice1712 *ice)
+static int snd_ice1712_delta_init(struct snd_ice1712 *ice)
 {
 	int err;
 	struct snd_akm4xxx *ak;
@@ -725,7 +725,7 @@ static struct snd_kcontrol_new snd_ice1712_delta_spdif_in_status __devinitdata =
 ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "Delta IEC958 Input Status", 0, ICE1712_DELTA_SPDIF_IN_STAT, 1, SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE);
 
 
-static int __devinit snd_ice1712_delta_add_controls(struct snd_ice1712 *ice)
+static int snd_ice1712_delta_add_controls(struct snd_ice1712 *ice)
 {
 	int err;
 
diff --git a/sound/pci/ice1712/ews.c b/sound/pci/ice1712/ews.c
index bf289f0..65eaf99 100644
--- a/sound/pci/ice1712/ews.c
+++ b/sound/pci/ice1712/ews.c
@@ -419,7 +419,7 @@ static struct snd_ak4xxx_private akm_6fire_priv __devinitdata = {
 
 static int snd_ice1712_6fire_write_pca(struct snd_ice1712 *ice, unsigned char reg, unsigned char data);
 
-static int __devinit snd_ice1712_ews_init(struct snd_ice1712 *ice)
+static int snd_ice1712_ews_init(struct snd_ice1712 *ice)
 {
 	int err;
 	struct snd_akm4xxx *ak;
@@ -963,7 +963,7 @@ static struct snd_kcontrol_new snd_ice1712_6fire_controls[] __devinitdata = {
 };
 
 
-static int __devinit snd_ice1712_ews_add_controls(struct snd_ice1712 *ice)
+static int snd_ice1712_ews_add_controls(struct snd_ice1712 *ice)
 {
 	unsigned int idx;
 	int err;
diff --git a/sound/pci/ice1712/hoontech.c b/sound/pci/ice1712/hoontech.c
index 3d84d21..db1e852 100644
--- a/sound/pci/ice1712/hoontech.c
+++ b/sound/pci/ice1712/hoontech.c
@@ -39,7 +39,7 @@ struct hoontech_spec {
 	unsigned short boxconfig[4];
 };
 
-static void __devinit snd_ice1712_stdsp24_gpio_write(struct snd_ice1712 *ice, unsigned char byte)
+static void snd_ice1712_stdsp24_gpio_write(struct snd_ice1712 *ice, unsigned char byte)
 {
 	byte |= ICE1712_STDSP24_CLOCK_BIT;
 	udelay(100);
@@ -52,7 +52,7 @@ static void __devinit snd_ice1712_stdsp24_gpio_write(struct snd_ice1712 *ice, un
 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, byte);
 }
 
-static void __devinit snd_ice1712_stdsp24_darear(struct snd_ice1712 *ice, int activate)
+static void snd_ice1712_stdsp24_darear(struct snd_ice1712 *ice, int activate)
 {
 	struct hoontech_spec *spec = ice->spec;
 	mutex_lock(&ice->gpio_mutex);
@@ -61,7 +61,7 @@ static void __devinit snd_ice1712_stdsp24_darear(struct snd_ice1712 *ice, int ac
 	mutex_unlock(&ice->gpio_mutex);
 }
 
-static void __devinit snd_ice1712_stdsp24_mute(struct snd_ice1712 *ice, int activate)
+static void snd_ice1712_stdsp24_mute(struct snd_ice1712 *ice, int activate)
 {
 	struct hoontech_spec *spec = ice->spec;
 	mutex_lock(&ice->gpio_mutex);
@@ -70,7 +70,7 @@ static void __devinit snd_ice1712_stdsp24_mute(struct snd_ice1712 *ice, int acti
 	mutex_unlock(&ice->gpio_mutex);
 }
 
-static void __devinit snd_ice1712_stdsp24_insel(struct snd_ice1712 *ice, int activate)
+static void snd_ice1712_stdsp24_insel(struct snd_ice1712 *ice, int activate)
 {
 	struct hoontech_spec *spec = ice->spec;
 	mutex_lock(&ice->gpio_mutex);
@@ -79,7 +79,7 @@ static void __devinit snd_ice1712_stdsp24_insel(struct snd_ice1712 *ice, int act
 	mutex_unlock(&ice->gpio_mutex);
 }
 
-static void __devinit snd_ice1712_stdsp24_box_channel(struct snd_ice1712 *ice, int box, int chn, int activate)
+static void snd_ice1712_stdsp24_box_channel(struct snd_ice1712 *ice, int box, int chn, int activate)
 {
 	struct hoontech_spec *spec = ice->spec;
 
@@ -129,7 +129,7 @@ static void __devinit snd_ice1712_stdsp24_box_channel(struct snd_ice1712 *ice, i
 	mutex_unlock(&ice->gpio_mutex);
 }
 
-static void __devinit snd_ice1712_stdsp24_box_midi(struct snd_ice1712 *ice, int box, int master)
+static void snd_ice1712_stdsp24_box_midi(struct snd_ice1712 *ice, int box, int master)
 {
 	struct hoontech_spec *spec = ice->spec;
 
@@ -157,7 +157,7 @@ static void __devinit snd_ice1712_stdsp24_box_midi(struct snd_ice1712 *ice, int
 	mutex_unlock(&ice->gpio_mutex);
 }
 
-static void __devinit snd_ice1712_stdsp24_midi2(struct snd_ice1712 *ice, int activate)
+static void snd_ice1712_stdsp24_midi2(struct snd_ice1712 *ice, int activate)
 {
 	struct hoontech_spec *spec = ice->spec;
 	mutex_lock(&ice->gpio_mutex);
@@ -166,7 +166,7 @@ static void __devinit snd_ice1712_stdsp24_midi2(struct snd_ice1712 *ice, int act
 	mutex_unlock(&ice->gpio_mutex);
 }
 
-static int __devinit snd_ice1712_hoontech_init(struct snd_ice1712 *ice)
+static int snd_ice1712_hoontech_init(struct snd_ice1712 *ice)
 {
 	struct hoontech_spec *spec;
 	int box, chn;
@@ -266,7 +266,7 @@ static void stdsp24_ak4524_lock(struct snd_akm4xxx *ak, int chip)
 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~tmp);
 }
 
-static int __devinit snd_ice1712_value_init(struct snd_ice1712 *ice)
+static int snd_ice1712_value_init(struct snd_ice1712 *ice)
 {
 	/* Hoontech STDSP24 with modified hardware */
 	static struct snd_akm4xxx akm_stdsp24_mv __devinitdata = {
@@ -316,7 +316,7 @@ static int __devinit snd_ice1712_value_init(struct snd_ice1712 *ice)
 	return 0;
 }
 
-static int __devinit snd_ice1712_ez8_init(struct snd_ice1712 *ice)
+static int snd_ice1712_ez8_init(struct snd_ice1712 *ice)
 {
 	ice->gpio.write_mask = ice->eeprom.gpiomask;
 	ice->gpio.direction = ice->eeprom.gpiodir;
diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c
index 80b3409..31719d0 100644
--- a/sound/pci/ice1712/ice1712.c
+++ b/sound/pci/ice1712/ice1712.c
@@ -387,7 +387,7 @@ static void setup_cs8427(struct snd_ice1712 *ice, int rate)
 /*
  * create and initialize callbacks for cs8427 interface
  */
-int __devinit snd_ice1712_init_cs8427(struct snd_ice1712 *ice, int addr)
+int snd_ice1712_init_cs8427(struct snd_ice1712 *ice, int addr)
 {
 	int err;
 
@@ -878,7 +878,7 @@ static struct snd_pcm_ops snd_ice1712_capture_ops = {
 	.pointer =	snd_ice1712_capture_pointer,
 };
 
-static int __devinit snd_ice1712_pcm(struct snd_ice1712 *ice, int device, struct snd_pcm **rpcm)
+static int snd_ice1712_pcm(struct snd_ice1712 *ice, int device, struct snd_pcm **rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -908,7 +908,7 @@ static int __devinit snd_ice1712_pcm(struct snd_ice1712 *ice, int device, struct
 	return 0;
 }
 
-static int __devinit snd_ice1712_pcm_ds(struct snd_ice1712 *ice, int device, struct snd_pcm **rpcm)
+static int snd_ice1712_pcm_ds(struct snd_ice1712 *ice, int device, struct snd_pcm **rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1253,7 +1253,7 @@ static struct snd_pcm_ops snd_ice1712_capture_pro_ops = {
 	.pointer =	snd_ice1712_capture_pro_pointer,
 };
 
-static int __devinit snd_ice1712_pcm_profi(struct snd_ice1712 *ice, int device, struct snd_pcm **rpcm)
+static int snd_ice1712_pcm_profi(struct snd_ice1712 *ice, int device, struct snd_pcm **rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1452,7 +1452,7 @@ static struct snd_kcontrol_new snd_ice1712_multi_capture_spdif_volume __devinitd
 	.count = 2,
 };
 
-static int __devinit snd_ice1712_build_pro_mixer(struct snd_ice1712 *ice)
+static int snd_ice1712_build_pro_mixer(struct snd_ice1712 *ice)
 {
 	struct snd_card *card = ice->card;
 	unsigned int idx;
@@ -1511,7 +1511,7 @@ static void snd_ice1712_mixer_free_ac97(struct snd_ac97 *ac97)
 	ice->ac97 = NULL;
 }
 
-static int __devinit snd_ice1712_ac97_mixer(struct snd_ice1712 *ice)
+static int snd_ice1712_ac97_mixer(struct snd_ice1712 *ice)
 {
 	int err, bus_num = 0;
 	struct snd_ac97_template ac97;
@@ -1610,7 +1610,7 @@ static void snd_ice1712_proc_read(struct snd_info_entry *entry,
 	snd_iprintf(buffer, "  GPIO_DIRECTION   : 0x%02x\n", (unsigned)snd_ice1712_read(ice, ICE1712_IREG_GPIO_DIRECTION));
 }
 
-static void __devinit snd_ice1712_proc_init(struct snd_ice1712 *ice)
+static void snd_ice1712_proc_init(struct snd_ice1712 *ice)
 {
 	struct snd_info_entry *entry;
 
@@ -2298,7 +2298,7 @@ static struct snd_ice1712_card_info *card_tables[] __devinitdata = {
 	NULL,
 };
 
-static unsigned char __devinit snd_ice1712_read_i2c(struct snd_ice1712 *ice,
+static unsigned char snd_ice1712_read_i2c(struct snd_ice1712 *ice,
 						 unsigned char dev,
 						 unsigned char addr)
 {
@@ -2310,7 +2310,7 @@ static unsigned char __devinit snd_ice1712_read_i2c(struct snd_ice1712 *ice,
 	return inb(ICEREG(ice, I2C_DATA));
 }
 
-static int __devinit snd_ice1712_read_eeprom(struct snd_ice1712 *ice,
+static int snd_ice1712_read_eeprom(struct snd_ice1712 *ice,
 					     const char *modelname)
 {
 	int dev = 0xa0;		/* EEPROM device address */
@@ -2385,7 +2385,7 @@ static int __devinit snd_ice1712_read_eeprom(struct snd_ice1712 *ice,
 
 
 
-static int __devinit snd_ice1712_chip_init(struct snd_ice1712 *ice)
+static int snd_ice1712_chip_init(struct snd_ice1712 *ice)
 {
 	outb(ICE1712_RESET | ICE1712_NATIVE, ICEREG(ice, CONTROL));
 	udelay(200);
@@ -2432,7 +2432,7 @@ static int __devinit snd_ice1712_chip_init(struct snd_ice1712 *ice)
 	return 0;
 }
 
-int __devinit snd_ice1712_spdif_build_controls(struct snd_ice1712 *ice)
+int snd_ice1712_spdif_build_controls(struct snd_ice1712 *ice)
 {
 	int err;
 	struct snd_kcontrol *kctl;
@@ -2460,7 +2460,7 @@ int __devinit snd_ice1712_spdif_build_controls(struct snd_ice1712 *ice)
 }
 
 
-static int __devinit snd_ice1712_build_controls(struct snd_ice1712 *ice)
+static int snd_ice1712_build_controls(struct snd_ice1712 *ice)
 {
 	int err;
 
@@ -2530,7 +2530,7 @@ static int snd_ice1712_dev_free(struct snd_device *device)
 	return snd_ice1712_free(ice);
 }
 
-static int __devinit snd_ice1712_create(struct snd_card *card,
+static int snd_ice1712_create(struct snd_card *card,
 					struct pci_dev *pci,
 					const char *modelname,
 					int omni,
@@ -2652,7 +2652,7 @@ static int __devinit snd_ice1712_create(struct snd_card *card,
 
 static struct snd_ice1712_card_info no_matched __devinitdata;
 
-static int __devinit snd_ice1712_probe(struct pci_dev *pci,
+static int snd_ice1712_probe(struct pci_dev *pci,
 				       const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c
index cf872ae..30b5935 100644
--- a/sound/pci/ice1712/ice1724.c
+++ b/sound/pci/ice1712/ice1724.c
@@ -1135,7 +1135,7 @@ static struct snd_pcm_ops snd_vt1724_capture_pro_ops = {
 	.pointer =	snd_vt1724_pcm_pointer,
 };
 
-static int __devinit snd_vt1724_pcm_profi(struct snd_ice1712 *ice, int device)
+static int snd_vt1724_pcm_profi(struct snd_ice1712 *ice, int device)
 {
 	struct snd_pcm *pcm;
 	int capt, err;
@@ -1315,7 +1315,7 @@ static struct snd_pcm_ops snd_vt1724_capture_spdif_ops = {
 };
 
 
-static int __devinit snd_vt1724_pcm_spdif(struct snd_ice1712 *ice, int device)
+static int snd_vt1724_pcm_spdif(struct snd_ice1712 *ice, int device)
 {
 	char *name;
 	struct snd_pcm *pcm;
@@ -1449,7 +1449,7 @@ static struct snd_pcm_ops snd_vt1724_playback_indep_ops = {
 };
 
 
-static int __devinit snd_vt1724_pcm_indep(struct snd_ice1712 *ice, int device)
+static int snd_vt1724_pcm_indep(struct snd_ice1712 *ice, int device)
 {
 	struct snd_pcm *pcm;
 	int play;
@@ -1484,7 +1484,7 @@ static int __devinit snd_vt1724_pcm_indep(struct snd_ice1712 *ice, int device)
  *  Mixer section
  */
 
-static int __devinit snd_vt1724_ac97_mixer(struct snd_ice1712 *ice)
+static int snd_vt1724_ac97_mixer(struct snd_ice1712 *ice)
 {
 	int err;
 
@@ -1570,7 +1570,7 @@ static void snd_vt1724_proc_read(struct snd_info_entry *entry,
 			    idx, inb(ice->profi_port+idx));
 }
 
-static void __devinit snd_vt1724_proc_init(struct snd_ice1712 *ice)
+static void snd_vt1724_proc_init(struct snd_ice1712 *ice)
 {
 	struct snd_info_entry *entry;
 
@@ -2307,7 +2307,7 @@ void snd_vt1724_write_i2c(struct snd_ice1712 *ice,
 	mutex_unlock(&ice->i2c_mutex);
 }
 
-static int __devinit snd_vt1724_read_eeprom(struct snd_ice1712 *ice,
+static int snd_vt1724_read_eeprom(struct snd_ice1712 *ice,
 					    const char *modelname)
 {
 	const int dev = 0xa0;		/* EEPROM device address */
@@ -2430,7 +2430,7 @@ static int snd_vt1724_chip_init(struct snd_ice1712 *ice)
 	return 0;
 }
 
-static int __devinit snd_vt1724_spdif_build_controls(struct snd_ice1712 *ice)
+static int snd_vt1724_spdif_build_controls(struct snd_ice1712 *ice)
 {
 	int err;
 	struct snd_kcontrol *kctl;
@@ -2472,7 +2472,7 @@ static int __devinit snd_vt1724_spdif_build_controls(struct snd_ice1712 *ice)
 }
 
 
-static int __devinit snd_vt1724_build_controls(struct snd_ice1712 *ice)
+static int snd_vt1724_build_controls(struct snd_ice1712 *ice)
 {
 	int err;
 
@@ -2532,7 +2532,7 @@ static int snd_vt1724_dev_free(struct snd_device *device)
 	return snd_vt1724_free(ice);
 }
 
-static int __devinit snd_vt1724_create(struct snd_card *card,
+static int snd_vt1724_create(struct snd_card *card,
 				       struct pci_dev *pci,
 				       const char *modelname,
 				       struct snd_ice1712 **r_ice1712)
@@ -2622,7 +2622,7 @@ static int __devinit snd_vt1724_create(struct snd_card *card,
  *
  */
 
-static int __devinit snd_vt1724_probe(struct pci_dev *pci,
+static int snd_vt1724_probe(struct pci_dev *pci,
 				      const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/ice1712/juli.c b/sound/pci/ice1712/juli.c
index a6b23b4..0585e9c 100644
--- a/sound/pci/ice1712/juli.c
+++ b/sound/pci/ice1712/juli.c
@@ -422,7 +422,7 @@ static char *slave_vols[] __devinitdata = {
 static __devinitdata
 DECLARE_TLV_DB_SCALE(juli_master_db_scale, -6350, 50, 1);
 
-static struct snd_kcontrol __devinit *ctl_find(struct snd_card *card,
+static struct snd_kcontrol *ctl_find(struct snd_card *card,
 		const char *name)
 {
 	struct snd_ctl_elem_id sid;
@@ -433,7 +433,7 @@ static struct snd_kcontrol __devinit *ctl_find(struct snd_card *card,
 	return snd_ctl_find_id(card, &sid);
 }
 
-static void __devinit add_slaves(struct snd_card *card,
+static void add_slaves(struct snd_card *card,
 				 struct snd_kcontrol *master,
 				 char * const *list)
 {
@@ -447,7 +447,7 @@ static void __devinit add_slaves(struct snd_card *card,
 	}
 }
 
-static int __devinit juli_add_controls(struct snd_ice1712 *ice)
+static int juli_add_controls(struct snd_ice1712 *ice)
 {
 	struct juli_spec *spec = ice->spec;
 	int err;
@@ -579,7 +579,7 @@ static void juli_ak4114_change(struct ak4114 *ak4114, unsigned char c0,
 	}
 }
 
-static int __devinit juli_init(struct snd_ice1712 *ice)
+static int juli_init(struct snd_ice1712 *ice)
 {
 	static const unsigned char ak4114_init_vals[] = {
 		/* AK4117_REG_PWRDN */	AK4114_RST | AK4114_PWN |
diff --git a/sound/pci/ice1712/maya44.c b/sound/pci/ice1712/maya44.c
index d8d749e..9292ca1 100644
--- a/sound/pci/ice1712/maya44.c
+++ b/sound/pci/ice1712/maya44.c
@@ -544,7 +544,7 @@ static struct snd_kcontrol_new maya_controls[] __devinitdata = {
 	},
 };
 
-static int __devinit maya44_add_controls(struct snd_ice1712 *ice)
+static int maya44_add_controls(struct snd_ice1712 *ice)
 {
 	int err, i;
 
@@ -561,7 +561,7 @@ static int __devinit maya44_add_controls(struct snd_ice1712 *ice)
 /*
  * initialize a wm8776 chip
  */
-static void __devinit wm8776_init(struct snd_ice1712 *ice,
+static void wm8776_init(struct snd_ice1712 *ice,
 				  struct snd_wm8776 *wm, unsigned int addr)
 {
 	static const unsigned short inits_wm8776[] = {
@@ -699,7 +699,7 @@ static unsigned char wm8776_addr[2] __devinitdata = {
 /*
  * initialize the chip
  */
-static int __devinit maya44_init(struct snd_ice1712 *ice)
+static int maya44_init(struct snd_ice1712 *ice)
 {
 	int i;
 	struct snd_maya44 *chip;
diff --git a/sound/pci/ice1712/phase.c b/sound/pci/ice1712/phase.c
index c9be75a..a9dbdd8 100644
--- a/sound/pci/ice1712/phase.c
+++ b/sound/pci/ice1712/phase.c
@@ -120,7 +120,7 @@ static struct snd_ak4xxx_private akm_phase22_priv __devinitdata = {
 	.mask_flags =	0,
 };
 
-static int __devinit phase22_init(struct snd_ice1712 *ice)
+static int phase22_init(struct snd_ice1712 *ice)
 {
 	struct snd_akm4xxx *ak;
 	int err;
@@ -157,7 +157,7 @@ static int __devinit phase22_init(struct snd_ice1712 *ice)
 	return 0;
 }
 
-static int __devinit phase22_add_controls(struct snd_ice1712 *ice)
+static int phase22_add_controls(struct snd_ice1712 *ice)
 {
 	int err = 0;
 
@@ -378,7 +378,7 @@ static int wm_master_vol_put(struct snd_kcontrol *kcontrol,
 	return change;
 }
 
-static int __devinit phase28_init(struct snd_ice1712 *ice)
+static int phase28_init(struct snd_ice1712 *ice)
 {
 	static const unsigned short wm_inits_phase28[] = {
 		/* These come first to reduce init pop noise */
@@ -918,7 +918,7 @@ static struct snd_kcontrol_new wm_controls[] __devinitdata = {
 	}
 };
 
-static int __devinit phase28_add_controls(struct snd_ice1712 *ice)
+static int phase28_add_controls(struct snd_ice1712 *ice)
 {
 	unsigned int i, counts;
 	int err;
diff --git a/sound/pci/ice1712/pontis.c b/sound/pci/ice1712/pontis.c
index 3ce1289..8676d2f 100644
--- a/sound/pci/ice1712/pontis.c
+++ b/sound/pci/ice1712/pontis.c
@@ -696,7 +696,7 @@ static void cs_proc_init(struct snd_ice1712 *ice)
 }
 
 
-static int __devinit pontis_add_controls(struct snd_ice1712 *ice)
+static int pontis_add_controls(struct snd_ice1712 *ice)
 {
 	unsigned int i;
 	int err;
@@ -717,7 +717,7 @@ static int __devinit pontis_add_controls(struct snd_ice1712 *ice)
 /*
  * initialize the chip
  */
-static int __devinit pontis_init(struct snd_ice1712 *ice)
+static int pontis_init(struct snd_ice1712 *ice)
 {
 	static const unsigned short wm_inits[] = {
 		/* These come first to reduce init pop noise */
diff --git a/sound/pci/ice1712/prodigy192.c b/sound/pci/ice1712/prodigy192.c
index 3fcf581..3426acc 100644
--- a/sound/pci/ice1712/prodigy192.c
+++ b/sound/pci/ice1712/prodigy192.c
@@ -671,7 +671,7 @@ static void stac9460_proc_init(struct snd_ice1712 *ice)
 }
 
 
-static int __devinit prodigy192_add_controls(struct snd_ice1712 *ice)
+static int prodigy192_add_controls(struct snd_ice1712 *ice)
 {
 	struct prodigy192_spec *spec = ice->spec;
 	unsigned int i;
@@ -727,7 +727,7 @@ static int prodigy192_miodio_exists(struct snd_ice1712 *ice)
 /*
  * initialize the chip
  */
-static int __devinit prodigy192_init(struct snd_ice1712 *ice)
+static int prodigy192_init(struct snd_ice1712 *ice)
 {
 	static const unsigned short stac_inits_prodigy[] = {
 		STAC946X_RESET, 0,
diff --git a/sound/pci/ice1712/prodigy_hifi.c b/sound/pci/ice1712/prodigy_hifi.c
index 4fea87f..931eb08 100644
--- a/sound/pci/ice1712/prodigy_hifi.c
+++ b/sound/pci/ice1712/prodigy_hifi.c
@@ -938,7 +938,7 @@ static void wm_proc_init(struct snd_ice1712 *ice)
 	}
 }
 
-static int __devinit prodigy_hifi_add_controls(struct snd_ice1712 *ice)
+static int prodigy_hifi_add_controls(struct snd_ice1712 *ice)
 {
 	unsigned int i;
 	int err;
@@ -955,7 +955,7 @@ static int __devinit prodigy_hifi_add_controls(struct snd_ice1712 *ice)
 	return 0;
 }
 
-static int __devinit prodigy_hd2_add_controls(struct snd_ice1712 *ice)
+static int prodigy_hd2_add_controls(struct snd_ice1712 *ice)
 {
 	unsigned int i;
 	int err;
@@ -976,7 +976,7 @@ static int __devinit prodigy_hd2_add_controls(struct snd_ice1712 *ice)
 /*
  * initialize the chip
  */
-static int __devinit prodigy_hifi_init(struct snd_ice1712 *ice)
+static int prodigy_hifi_init(struct snd_ice1712 *ice)
 {
 	static unsigned short wm_inits[] = {
 		/* These come first to reduce init pop noise */
@@ -1114,7 +1114,7 @@ static int prodigy_hd2_resume(struct snd_ice1712 *ice)
 }
 #endif
 
-static int __devinit prodigy_hd2_init(struct snd_ice1712 *ice)
+static int prodigy_hd2_init(struct snd_ice1712 *ice)
 {
 	struct prodigy_hifi_spec *spec;
 
diff --git a/sound/pci/ice1712/psc724.c b/sound/pci/ice1712/psc724.c
index 0b6c4e6..1c15552 100644
--- a/sound/pci/ice1712/psc724.c
+++ b/sound/pci/ice1712/psc724.c
@@ -316,7 +316,7 @@ static const char *clfe_deemph	= "CLFE Deemphasis Playback Switch";
 static const char *rear_clfe_izd = "Rear Infinite Zero Detect Playback Switch";
 static const char *rear_clfe_zc	= "Rear Zero Cross Detect Playback Switch";
 
-static int __devinit psc724_add_controls(struct snd_ice1712 *ice)
+static int psc724_add_controls(struct snd_ice1712 *ice)
 {
 	struct snd_kcontrol_new cont;
 	struct snd_kcontrol *ctl;
@@ -396,7 +396,7 @@ static int psc724_resume(struct snd_ice1712 *ice)
 
 /* init */
 
-static int __devinit psc724_init(struct snd_ice1712 *ice)
+static int psc724_init(struct snd_ice1712 *ice)
 {
 	struct psc724_spec *spec;
 
diff --git a/sound/pci/ice1712/quartet.c b/sound/pci/ice1712/quartet.c
index c85b2ff..1f02d0d 100644
--- a/sound/pci/ice1712/quartet.c
+++ b/sound/pci/ice1712/quartet.c
@@ -804,7 +804,7 @@ static char *slave_vols[] __devinitdata = {
 static __devinitdata
 DECLARE_TLV_DB_SCALE(qtet_master_db_scale, -6350, 50, 1);
 
-static struct snd_kcontrol __devinit *ctl_find(struct snd_card *card,
+static struct snd_kcontrol *ctl_find(struct snd_card *card,
 		const char *name)
 {
 	struct snd_ctl_elem_id sid;
@@ -815,7 +815,7 @@ static struct snd_kcontrol __devinit *ctl_find(struct snd_card *card,
 	return snd_ctl_find_id(card, &sid);
 }
 
-static void __devinit add_slaves(struct snd_card *card,
+static void add_slaves(struct snd_card *card,
 		struct snd_kcontrol *master, char * const *list)
 {
 	for (; *list; list++) {
@@ -825,7 +825,7 @@ static void __devinit add_slaves(struct snd_card *card,
 	}
 }
 
-static int __devinit qtet_add_controls(struct snd_ice1712 *ice)
+static int qtet_add_controls(struct snd_ice1712 *ice)
 {
 	struct qtet_spec *spec = ice->spec;
 	int err, i;
@@ -1007,7 +1007,7 @@ static void qtet_spdif_in_open(struct snd_ice1712 *ice,
 /*
  * initialize the chip
  */
-static int __devinit qtet_init(struct snd_ice1712 *ice)
+static int qtet_init(struct snd_ice1712 *ice)
 {
 	static const unsigned char ak4113_init_vals[] = {
 		/* AK4113_REG_PWRDN */	AK4113_RST | AK4113_PWN |
diff --git a/sound/pci/ice1712/revo.c b/sound/pci/ice1712/revo.c
index a1b7975..f37d403 100644
--- a/sound/pci/ice1712/revo.c
+++ b/sound/pci/ice1712/revo.c
@@ -467,7 +467,7 @@ static unsigned char ap192_ak4114_read(void *private_data, unsigned char addr)
 	return data;
 }
 
-static int __devinit ap192_ak4114_init(struct snd_ice1712 *ice)
+static int ap192_ak4114_init(struct snd_ice1712 *ice)
 {
 	static const unsigned char ak4114_init_vals[] = {
 		AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
@@ -495,7 +495,7 @@ static int __devinit ap192_ak4114_init(struct snd_ice1712 *ice)
 	return 0; /* error ignored; it's no fatal error */
 }
 
-static int __devinit revo_init(struct snd_ice1712 *ice)
+static int revo_init(struct snd_ice1712 *ice)
 {
 	struct snd_akm4xxx *ak;
 	int err;
@@ -573,7 +573,7 @@ static int __devinit revo_init(struct snd_ice1712 *ice)
 }
 
 
-static int __devinit revo_add_controls(struct snd_ice1712 *ice)
+static int revo_add_controls(struct snd_ice1712 *ice)
 {
 	struct revo51_spec *spec;
 	int err;
diff --git a/sound/pci/ice1712/se.c b/sound/pci/ice1712/se.c
index 53b555f..adff671 100644
--- a/sound/pci/ice1712/se.c
+++ b/sound/pci/ice1712/se.c
@@ -113,7 +113,7 @@ struct se_spec {
 /*  WM8740 interface                                                        */
 /****************************************************************************/
 
-static void __devinit se200pci_WM8740_init(struct snd_ice1712 *ice)
+static void se200pci_WM8740_init(struct snd_ice1712 *ice)
 {
 	/* nothing to do */
 }
@@ -195,7 +195,7 @@ static void se200pci_WM8766_set_volume(struct snd_ice1712 *ice, int ch,
 	}
 }
 
-static void __devinit se200pci_WM8766_init(struct snd_ice1712 *ice)
+static void se200pci_WM8766_init(struct snd_ice1712 *ice)
 {
 	se200pci_WM8766_write(ice, 0x1f, 0x000); /* RESET ALL */
 	udelay(10);
@@ -299,7 +299,7 @@ static void se200pci_WM8776_set_agc(struct snd_ice1712 *ice, unsigned int agc)
 	}
 }
 
-static void __devinit se200pci_WM8776_init(struct snd_ice1712 *ice)
+static void se200pci_WM8776_init(struct snd_ice1712 *ice)
 {
 	int i;
 	static unsigned short __devinitdata default_values[] = {
@@ -599,7 +599,7 @@ static int se200pci_cont_enum_put(struct snd_kcontrol *kc,
 static const DECLARE_TLV_DB_SCALE(db_scale_gain1, -12750, 50, 1);
 static const DECLARE_TLV_DB_SCALE(db_scale_gain2, -10350, 50, 1);
 
-static int __devinit se200pci_add_controls(struct snd_ice1712 *ice)
+static int se200pci_add_controls(struct snd_ice1712 *ice)
 {
 	int i;
 	struct snd_kcontrol_new cont;
@@ -677,7 +677,7 @@ static int __devinit se200pci_add_controls(struct snd_ice1712 *ice)
 /*  probe/initialize/setup                                                  */
 /****************************************************************************/
 
-static int __devinit se_init(struct snd_ice1712 *ice)
+static int se_init(struct snd_ice1712 *ice)
 {
 	struct se_spec *spec;
 
@@ -705,7 +705,7 @@ static int __devinit se_init(struct snd_ice1712 *ice)
 	return -ENOENT;
 }
 
-static int __devinit se_add_controls(struct snd_ice1712 *ice)
+static int se_add_controls(struct snd_ice1712 *ice)
 {
 	int err;
 
diff --git a/sound/pci/ice1712/vt1720_mobo.c b/sound/pci/ice1712/vt1720_mobo.c
index 8a0a839..87dfe9c 100644
--- a/sound/pci/ice1712/vt1720_mobo.c
+++ b/sound/pci/ice1712/vt1720_mobo.c
@@ -31,7 +31,7 @@
 #include "vt1720_mobo.h"
 
 
-static int __devinit k8x800_init(struct snd_ice1712 *ice)
+static int k8x800_init(struct snd_ice1712 *ice)
 {
 	ice->vt1720 = 1;
 
@@ -45,7 +45,7 @@ static int __devinit k8x800_init(struct snd_ice1712 *ice)
 	return 0;
 }
 
-static int __devinit k8x800_add_controls(struct snd_ice1712 *ice)
+static int k8x800_add_controls(struct snd_ice1712 *ice)
 {
 	/* FIXME: needs some quirks for VT1616? */
 	return 0;
diff --git a/sound/pci/ice1712/wtm.c b/sound/pci/ice1712/wtm.c
index 184163b..967bd41 100644
--- a/sound/pci/ice1712/wtm.c
+++ b/sound/pci/ice1712/wtm.c
@@ -447,7 +447,7 @@ static struct snd_kcontrol_new stac9640_controls[] __devinitdata = {
 
 
 /*INIT*/
-static int __devinit wtm_add_controls(struct snd_ice1712 *ice)
+static int wtm_add_controls(struct snd_ice1712 *ice)
 {
 	unsigned int i;
 	int err;
@@ -461,7 +461,7 @@ static int __devinit wtm_add_controls(struct snd_ice1712 *ice)
 	return 0;
 }
 
-static int __devinit wtm_init(struct snd_ice1712 *ice)
+static int wtm_init(struct snd_ice1712 *ice)
 {
 	static unsigned short stac_inits_prodigy[] = {
 		STAC946X_RESET, 0,
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index a3ab153..b6a5cfc 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -592,7 +592,7 @@ static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
 	return res;
 }
 
-static void __devinit snd_intel8x0_codec_read_test(struct intel8x0 *chip,
+static void snd_intel8x0_codec_read_test(struct intel8x0 *chip,
 						   unsigned int codec)
 {
 	unsigned int tmp;
@@ -1507,7 +1507,7 @@ struct ich_pcm_table {
 	int ac97_idx;
 };
 
-static int __devinit snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
+static int snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
 				       struct ich_pcm_table *rec)
 {
 	struct snd_pcm *pcm;
@@ -1656,7 +1656,7 @@ static struct ich_pcm_table ali_pcms[] __devinitdata = {
 #endif
 };
 
-static int __devinit snd_intel8x0_pcm(struct intel8x0 *chip)
+static int snd_intel8x0_pcm(struct intel8x0 *chip)
 {
 	int i, tblsize, device, err;
 	struct ich_pcm_table *tbl, *rec;
@@ -2196,7 +2196,7 @@ static struct ac97_quirk ac97_quirks[] __devinitdata = {
 	{ } /* terminator */
 };
 
-static int __devinit snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
+static int snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
 					const char *quirk_override)
 {
 	struct snd_ac97_bus *pbus;
@@ -2765,7 +2765,7 @@ static SIMPLE_DEV_PM_OPS(intel8x0_pm, intel8x0_suspend, intel8x0_resume);
 
 #define INTEL8X0_TESTBUF_SIZE	32768	/* enough large for one shot */
 
-static void __devinit intel8x0_measure_ac97_clock(struct intel8x0 *chip)
+static void intel8x0_measure_ac97_clock(struct intel8x0 *chip)
 {
 	struct snd_pcm_substream *subs;
 	struct ichdev *ichdev;
@@ -2892,7 +2892,7 @@ static struct snd_pci_quirk intel8x0_clock_list[] __devinitdata = {
 	{ }	/* terminator */
 };
 
-static int __devinit intel8x0_in_clock_list(struct intel8x0 *chip)
+static int intel8x0_in_clock_list(struct intel8x0 *chip)
 {
 	struct pci_dev *pci = chip->pci;
 	const struct snd_pci_quirk *wl;
@@ -2941,7 +2941,7 @@ static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
 			chip->ac97_sdin[2]);
 }
 
-static void __devinit snd_intel8x0_proc_init(struct intel8x0 * chip)
+static void snd_intel8x0_proc_init(struct intel8x0 * chip)
 {
 	struct snd_info_entry *entry;
 
@@ -2970,7 +2970,7 @@ static unsigned int sis_codec_bits[3] = {
 	ICH_PCR, ICH_SCR, ICH_SIS_TCR
 };
 
-static int __devinit snd_intel8x0_inside_vm(struct pci_dev *pci)
+static int snd_intel8x0_inside_vm(struct pci_dev *pci)
 {
 	int result  = inside_vm;
 	char *msg   = NULL;
@@ -3009,7 +3009,7 @@ fini:
 	return result;
 }
 
-static int __devinit snd_intel8x0_create(struct snd_card *card,
+static int snd_intel8x0_create(struct snd_card *card,
 					 struct pci_dev *pci,
 					 unsigned long device_type,
 					 struct intel8x0 ** r_intel8x0)
@@ -3259,7 +3259,7 @@ static struct snd_pci_quirk spdif_aclink_defaults[] __devinitdata = {
 };
 
 /* look up white/black list for SPDIF over ac-link */
-static int __devinit check_default_spdif_aclink(struct pci_dev *pci)
+static int check_default_spdif_aclink(struct pci_dev *pci)
 {
 	const struct snd_pci_quirk *w;
 
@@ -3276,7 +3276,7 @@ static int __devinit check_default_spdif_aclink(struct pci_dev *pci)
 	return 0;
 }
 
-static int __devinit snd_intel8x0_probe(struct pci_dev *pci,
+static int snd_intel8x0_probe(struct pci_dev *pci,
 					const struct pci_device_id *pci_id)
 {
 	struct snd_card *card;
diff --git a/sound/pci/intel8x0m.c b/sound/pci/intel8x0m.c
index cb51181..32233ff 100644
--- a/sound/pci/intel8x0m.c
+++ b/sound/pci/intel8x0m.c
@@ -710,7 +710,7 @@ struct ich_pcm_table {
 	int ac97_idx;
 };
 
-static int __devinit snd_intel8x0m_pcm1(struct intel8x0m *chip, int device,
+static int snd_intel8x0m_pcm1(struct intel8x0m *chip, int device,
 				       struct ich_pcm_table *rec)
 {
 	struct snd_pcm *pcm;
@@ -759,7 +759,7 @@ static struct ich_pcm_table intel_pcms[] __devinitdata = {
 	},
 };
 
-static int __devinit snd_intel8x0m_pcm(struct intel8x0m *chip)
+static int snd_intel8x0m_pcm(struct intel8x0m *chip)
 {
 	int i, tblsize, device, err;
 	struct ich_pcm_table *tbl, *rec;
@@ -819,7 +819,7 @@ static void snd_intel8x0m_mixer_free_ac97(struct snd_ac97 *ac97)
 }
 
 
-static int __devinit snd_intel8x0m_mixer(struct intel8x0m *chip, int ac97_clock)
+static int snd_intel8x0m_mixer(struct intel8x0m *chip, int ac97_clock)
 {
 	struct snd_ac97_bus *pbus;
 	struct snd_ac97_template ac97;
@@ -1090,7 +1090,7 @@ static void snd_intel8x0m_proc_read(struct snd_info_entry * entry,
 			(tmp & (ICH_PCR | ICH_SCR | ICH_TCR)) == 0 ? " none" : "");
 }
 
-static void __devinit snd_intel8x0m_proc_init(struct intel8x0m * chip)
+static void snd_intel8x0m_proc_init(struct intel8x0m * chip)
 {
 	struct snd_info_entry *entry;
 
@@ -1113,7 +1113,7 @@ struct ich_reg_info {
 	unsigned int offset;
 };
 
-static int __devinit snd_intel8x0m_create(struct snd_card *card,
+static int snd_intel8x0m_create(struct snd_card *card,
 					 struct pci_dev *pci,
 					 unsigned long device_type,
 					 struct intel8x0m **r_intel8x0m)
@@ -1275,7 +1275,7 @@ static struct shortname_table {
 	{ 0 },
 };
 
-static int __devinit snd_intel8x0m_probe(struct pci_dev *pci,
+static int snd_intel8x0m_probe(struct pci_dev *pci,
 					const struct pci_device_id *pci_id)
 {
 	struct snd_card *card;
diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c
index 1deabc6..3398453 100644
--- a/sound/pci/korg1212/korg1212.c
+++ b/sound/pci/korg1212/korg1212.c
@@ -2083,7 +2083,7 @@ static void snd_korg1212_proc_read(struct snd_info_entry *entry,
         snd_iprintf(buffer, "    Error count: %ld\n", korg1212->totalerrorcnt);
 }
 
-static void __devinit snd_korg1212_proc_init(struct snd_korg1212 *korg1212)
+static void snd_korg1212_proc_init(struct snd_korg1212 *korg1212)
 {
 	struct snd_info_entry *entry;
 
@@ -2154,7 +2154,7 @@ static int snd_korg1212_dev_free(struct snd_device *device)
 	return snd_korg1212_free(korg1212);
 }
 
-static int __devinit snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
+static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
                                          struct snd_korg1212 ** rchip)
 
 {
@@ -2429,8 +2429,7 @@ static int __devinit snd_korg1212_create(struct snd_card *card, struct pci_dev *
  * Card initialisation
  */
 
-static int __devinit
-snd_korg1212_probe(struct pci_dev *pci,
+static int snd_korg1212_probe(struct pci_dev *pci,
 		const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/lola/lola.c b/sound/pci/lola/lola.c
index a72cca9..7be3dad 100644
--- a/sound/pci/lola/lola.c
+++ b/sound/pci/lola/lola.c
@@ -445,7 +445,7 @@ static void lola_reset_setups(struct lola *chip)
 	lola_setup_all_analog_gains(chip, PLAY, false); /* output, update */
 }
 
-static int __devinit lola_parse_tree(struct lola *chip)
+static int lola_parse_tree(struct lola *chip)
 {
 	unsigned int val;
 	int nid, err;
@@ -568,7 +568,7 @@ static int lola_dev_free(struct snd_device *device)
 	return 0;
 }
 
-static int __devinit lola_create(struct snd_card *card, struct pci_dev *pci,
+static int lola_create(struct snd_card *card, struct pci_dev *pci,
 				 int dev, struct lola **rchip)
 {
 	struct lola *chip;
@@ -702,7 +702,7 @@ static int __devinit lola_create(struct snd_card *card, struct pci_dev *pci,
 	return err;
 }
 
-static int __devinit lola_probe(struct pci_dev *pci,
+static int lola_probe(struct pci_dev *pci,
 				const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/lola/lola_clock.c b/sound/pci/lola/lola_clock.c
index 72f8ef0..eb1d6b9 100644
--- a/sound/pci/lola/lola_clock.c
+++ b/sound/pci/lola/lola_clock.c
@@ -120,7 +120,7 @@ int lola_set_granularity(struct lola *chip, unsigned int val, bool force)
  * Clock widget handling
  */
 
-int __devinit lola_init_clock_widget(struct lola *chip, int nid)
+int lola_init_clock_widget(struct lola *chip, int nid)
 {
 	unsigned int val;
 	int i, j, nitems, nb_verbs, idx, idx_list;
diff --git a/sound/pci/lola/lola_mixer.c b/sound/pci/lola/lola_mixer.c
index 6b8d648..2191935 100644
--- a/sound/pci/lola/lola_mixer.c
+++ b/sound/pci/lola/lola_mixer.c
@@ -28,7 +28,7 @@
 #include <sound/tlv.h>
 #include "lola.h"
 
-static int __devinit lola_init_pin(struct lola *chip, struct lola_pin *pin,
+static int lola_init_pin(struct lola *chip, struct lola_pin *pin,
 				   int dir, int nid)
 {
 	unsigned int val;
@@ -91,7 +91,7 @@ static int __devinit lola_init_pin(struct lola *chip, struct lola_pin *pin,
 	return 0;
 }
 
-int __devinit lola_init_pins(struct lola *chip, int dir, int *nidp)
+int lola_init_pins(struct lola *chip, int dir, int *nidp)
 {
 	int i, err, nid;
 	nid = *nidp;
@@ -112,7 +112,7 @@ void lola_free_mixer(struct lola *chip)
 		vfree(chip->mixer.array_saved);
 }
 
-int __devinit lola_init_mixer_widget(struct lola *chip, int nid)
+int lola_init_mixer_widget(struct lola *chip, int nid)
 {
 	unsigned int val;
 	int err;
@@ -590,7 +590,7 @@ static struct snd_kcontrol_new lola_analog_mixer __devinitdata = {
 	.tlv.c = lola_analog_vol_tlv,
 };
 
-static int __devinit create_analog_mixer(struct lola *chip, int dir, char *name)
+static int create_analog_mixer(struct lola *chip, int dir, char *name)
 {
 	if (!chip->pin[dir].num_pins)
 		return 0;
@@ -656,7 +656,7 @@ static struct snd_kcontrol_new lola_input_src_mixer __devinitdata = {
  * Lola16161 or Lola881 can have Hardware sample rate converters
  * on its digital input pins
  */
-static int __devinit create_input_src_mixer(struct lola *chip)
+static int create_input_src_mixer(struct lola *chip)
 {
 	if (!chip->input_src_caps_mask)
 		return 0;
@@ -736,7 +736,7 @@ static struct snd_kcontrol_new lola_src_gain_mixer __devinitdata = {
 	.tlv.p = lola_src_gain_tlv,
 };
 
-static int __devinit create_src_gain_mixer(struct lola *chip,
+static int create_src_gain_mixer(struct lola *chip,
 					   int num, int ofs, char *name)
 {
 	lola_src_gain_mixer.name = name;
@@ -823,7 +823,7 @@ static struct snd_kcontrol_new lola_dest_gain_mixer __devinitdata = {
 	.tlv.p = lola_dest_gain_tlv,
 };
 
-static int __devinit create_dest_gain_mixer(struct lola *chip,
+static int create_dest_gain_mixer(struct lola *chip,
 					    int src_num, int src_ofs,
 					    int num, int ofs, char *name)
 {
@@ -838,7 +838,7 @@ static int __devinit create_dest_gain_mixer(struct lola *chip,
 
 /*
  */
-int __devinit lola_create_mixer(struct lola *chip)
+int lola_create_mixer(struct lola *chip)
 {
 	int err;
 
diff --git a/sound/pci/lola/lola_pcm.c b/sound/pci/lola/lola_pcm.c
index c44db68..5ea85e8 100644
--- a/sound/pci/lola/lola_pcm.c
+++ b/sound/pci/lola/lola_pcm.c
@@ -597,7 +597,7 @@ static struct snd_pcm_ops lola_pcm_ops = {
 	.page = snd_pcm_sgbuf_ops_page,
 };
 
-int __devinit lola_create_pcm(struct lola *chip)
+int lola_create_pcm(struct lola *chip)
 {
 	struct snd_pcm *pcm;
 	int i, err;
@@ -690,7 +690,7 @@ static int lola_init_stream(struct lola *chip, struct lola_stream *str,
 	return 0;
 }
 
-int __devinit lola_init_pcm(struct lola *chip, int dir, int *nidp)
+int lola_init_pcm(struct lola *chip, int dir, int *nidp)
 {
 	struct lola_pcm *pcm = &chip->pcm[dir];
 	int i, nid, err;
diff --git a/sound/pci/lola/lola_proc.c b/sound/pci/lola/lola_proc.c
index 9d7daf8..04df83d 100644
--- a/sound/pci/lola/lola_proc.c
+++ b/sound/pci/lola/lola_proc.c
@@ -206,7 +206,7 @@ static void lola_proc_regs_read(struct snd_info_entry *entry,
 	}
 }
 
-void __devinit lola_proc_debug_new(struct lola *chip)
+void lola_proc_debug_new(struct lola *chip)
 {
 	struct snd_info_entry *entry;
 
diff --git a/sound/pci/lx6464es/lx6464es.c b/sound/pci/lx6464es/lx6464es.c
index 62b378c..62ff221 100644
--- a/sound/pci/lx6464es/lx6464es.c
+++ b/sound/pci/lx6464es/lx6464es.c
@@ -578,7 +578,7 @@ static int snd_lx6464es_dev_free(struct snd_device *device)
 }
 
 /* reset the dsp during initialization */
-static int __devinit lx_init_xilinx_reset(struct lx6464es *chip)
+static int lx_init_xilinx_reset(struct lx6464es *chip)
 {
 	int i;
 	u32 plx_reg = lx_plx_reg_read(chip, ePLX_CHIPSC);
@@ -620,7 +620,7 @@ static int __devinit lx_init_xilinx_reset(struct lx6464es *chip)
 	return 0;
 }
 
-static int __devinit lx_init_xilinx_test(struct lx6464es *chip)
+static int lx_init_xilinx_test(struct lx6464es *chip)
 {
 	u32 reg;
 
@@ -650,7 +650,7 @@ static int __devinit lx_init_xilinx_test(struct lx6464es *chip)
 }
 
 /* initialize ethersound */
-static int __devinit lx_init_ethersound_config(struct lx6464es *chip)
+static int lx_init_ethersound_config(struct lx6464es *chip)
 {
 	int i;
 	u32 orig_conf_es = lx_dsp_reg_read(chip, eReg_CONFES);
@@ -690,7 +690,7 @@ static int __devinit lx_init_ethersound_config(struct lx6464es *chip)
 	return 0;
 }
 
-static int __devinit lx_init_get_version_features(struct lx6464es *chip)
+static int lx_init_get_version_features(struct lx6464es *chip)
 {
 	u32 dsp_version;
 
@@ -759,7 +759,7 @@ static int lx_set_granularity(struct lx6464es *chip, u32 gran)
 }
 
 /* initialize and test the xilinx dsp chip */
-static int __devinit lx_init_dsp(struct lx6464es *chip)
+static int lx_init_dsp(struct lx6464es *chip)
 {
 	int err;
 	int i;
@@ -835,7 +835,7 @@ static struct snd_pcm_ops lx_ops_capture = {
 	.pointer   = lx_pcm_stream_pointer,
 };
 
-static int __devinit lx_pcm_create(struct lx6464es *chip)
+static int lx_pcm_create(struct lx6464es *chip)
 {
 	int err;
 	struct snd_pcm *pcm;
@@ -954,7 +954,7 @@ static void lx_proc_levels_read(struct snd_info_entry *entry,
 	snd_iprintf(buffer, "\n");
 }
 
-static int __devinit lx_proc_create(struct snd_card *card, struct lx6464es *chip)
+static int lx_proc_create(struct snd_card *card, struct lx6464es *chip)
 {
 	struct snd_info_entry *entry;
 	int err = snd_card_proc_new(card, "levels", &entry);
@@ -966,7 +966,7 @@ static int __devinit lx_proc_create(struct snd_card *card, struct lx6464es *chip
 }
 
 
-static int __devinit snd_lx6464es_create(struct snd_card *card,
+static int snd_lx6464es_create(struct snd_card *card,
 					 struct pci_dev *pci,
 					 struct lx6464es **rchip)
 {
@@ -1082,7 +1082,7 @@ alloc_failed:
 	return err;
 }
 
-static int __devinit snd_lx6464es_probe(struct pci_dev *pci,
+static int snd_lx6464es_probe(struct pci_dev *pci,
 					const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/lx6464es/lx_core.c b/sound/pci/lx6464es/lx_core.c
index 8c3e7fc..633c860 100644
--- a/sound/pci/lx6464es/lx_core.c
+++ b/sound/pci/lx6464es/lx_core.c
@@ -385,7 +385,7 @@ polling_successful:
 
 
 /* low-level dsp access */
-int __devinit lx_dsp_get_version(struct lx6464es *chip, u32 *rdsp_version)
+int lx_dsp_get_version(struct lx6464es *chip, u32 *rdsp_version)
 {
 	u16 ret;
 	unsigned long flags;
diff --git a/sound/pci/lx6464es/lx_core.h b/sound/pci/lx6464es/lx_core.h
index 4d7ff79..5ec5e04 100644
--- a/sound/pci/lx6464es/lx_core.h
+++ b/sound/pci/lx6464es/lx_core.h
@@ -109,7 +109,7 @@ struct lx_rmh {
 
 
 /* low-level dsp access */
-int __devinit lx_dsp_get_version(struct lx6464es *chip, u32 *rdsp_version);
+int lx_dsp_get_version(struct lx6464es *chip, u32 *rdsp_version);
 int lx_dsp_get_clock_frequency(struct lx6464es *chip, u32 *rfreq);
 int lx_dsp_set_granularity(struct lx6464es *chip, u32 gran);
 int lx_dsp_read_async_events(struct lx6464es *chip, u32 *data);
diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c
index 8b76a52..7dc0cc8 100644
--- a/sound/pci/maestro3.c
+++ b/sound/pci/maestro3.c
@@ -1856,8 +1856,7 @@ static struct snd_pcm_ops snd_m3_capture_ops = {
 	.pointer =	snd_m3_pcm_pointer,
 };
 
-static int __devinit
-snd_m3_pcm(struct snd_m3 * chip, int device)
+static int snd_m3_pcm(struct snd_m3 * chip, int device)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -2031,7 +2030,7 @@ static void snd_m3_ac97_reset(struct snd_m3 *chip)
 #endif
 }
 
-static int __devinit snd_m3_mixer(struct snd_m3 *chip)
+static int snd_m3_mixer(struct snd_m3 *chip)
 {
 	struct snd_ac97_bus *pbus;
 	struct snd_ac97_template ac97;
@@ -2173,7 +2172,7 @@ static void snd_m3_assp_init(struct snd_m3 *chip)
 }
 
 
-static int __devinit snd_m3_assp_client_init(struct snd_m3 *chip, struct m3_dma *s, int index)
+static int snd_m3_assp_client_init(struct snd_m3 *chip, struct m3_dma *s, int index)
 {
 	int data_bytes = 2 * ( MINISRC_TMP_BUFFER_SIZE / 2 + 
 			       MINISRC_IN_BUFFER_SIZE / 2 +
@@ -2488,7 +2487,7 @@ static SIMPLE_DEV_PM_OPS(m3_pm, m3_suspend, m3_resume);
 #endif /* CONFIG_PM_SLEEP */
 
 #ifdef CONFIG_SND_MAESTRO3_INPUT
-static int __devinit snd_m3_input_register(struct snd_m3 *chip)
+static int snd_m3_input_register(struct snd_m3 *chip)
 {
 	struct input_dev *input_dev;
 	int err;
@@ -2532,8 +2531,7 @@ static int snd_m3_dev_free(struct snd_device *device)
 	return snd_m3_free(chip);
 }
 
-static int __devinit
-snd_m3_create(struct snd_card *card, struct pci_dev *pci,
+static int snd_m3_create(struct snd_card *card, struct pci_dev *pci,
 	      int enable_amp,
 	      int amp_gpio,
 	      struct snd_m3 **chip_ret)
@@ -2700,8 +2698,7 @@ snd_m3_create(struct snd_card *card, struct pci_dev *pci,
 
 /*
  */
-static int __devinit
-snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
+static int snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 {
 	static int dev;
 	struct snd_card *card;
diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c
index c5becc9..f744df5 100644
--- a/sound/pci/mixart/mixart.c
+++ b/sound/pci/mixart/mixart.c
@@ -1004,7 +1004,7 @@ static int snd_mixart_chip_dev_free(struct snd_device *device)
 
 /*
  */
-static int __devinit snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx)
+static int snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx)
 {
 	int err;
 	struct snd_mixart *chip;
@@ -1180,7 +1180,7 @@ static void snd_mixart_proc_read(struct snd_info_entry *entry,
 	} /* endif elf loaded */
 }
 
-static void __devinit snd_mixart_proc_init(struct snd_mixart *chip)
+static void snd_mixart_proc_init(struct snd_mixart *chip)
 {
 	struct snd_info_entry *entry;
 
@@ -1209,7 +1209,7 @@ static void __devinit snd_mixart_proc_init(struct snd_mixart *chip)
 /*
  *    probe function - creates the card manager
  */
-static int __devinit snd_mixart_probe(struct pci_dev *pci,
+static int snd_mixart_probe(struct pci_dev *pci,
 				      const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c
index 77b1811..6c06e85 100644
--- a/sound/pci/nm256/nm256.c
+++ b/sound/pci/nm256/nm256.c
@@ -928,8 +928,7 @@ static struct snd_pcm_ops snd_nm256_capture_ops = {
 	.mmap =		snd_pcm_lib_mmap_iomem,
 };
 
-static int __devinit
-snd_nm256_pcm(struct nm256 *chip, int device)
+static int snd_nm256_pcm(struct nm256 *chip, int device)
 {
 	struct snd_pcm *pcm;
 	int i, err;
@@ -1295,8 +1294,7 @@ snd_nm256_ac97_reset(struct snd_ac97 *ac97)
 }
 
 /* create an ac97 mixer interface */
-static int __devinit
-snd_nm256_mixer(struct nm256 *chip)
+static int snd_nm256_mixer(struct nm256 *chip)
 {
 	struct snd_ac97_bus *pbus;
 	struct snd_ac97_template ac97;
@@ -1336,8 +1334,7 @@ snd_nm256_mixer(struct nm256 *chip)
  * RAM.
  */
 
-static int __devinit
-snd_nm256_peek_for_sig(struct nm256 *chip)
+static int snd_nm256_peek_for_sig(struct nm256 *chip)
 {
 	/* The signature is located 1K below the end of video RAM.  */
 	void __iomem *temp;
@@ -1472,8 +1469,7 @@ static int snd_nm256_dev_free(struct snd_device *device)
 	return snd_nm256_free(chip);
 }
 
-static int __devinit
-snd_nm256_create(struct snd_card *card, struct pci_dev *pci,
+static int snd_nm256_create(struct snd_card *card, struct pci_dev *pci,
 		 struct nm256 **chip_ret)
 {
 	struct nm256 *chip;
@@ -1650,7 +1646,7 @@ static struct snd_pci_quirk nm256_quirks[] __devinitdata = {
 };
 
 
-static int __devinit snd_nm256_probe(struct pci_dev *pci,
+static int snd_nm256_probe(struct pci_dev *pci,
 				     const struct pci_device_id *pci_id)
 {
 	struct snd_card *card;
diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c
index d061c79..7fbe1cb 100644
--- a/sound/pci/oxygen/oxygen.c
+++ b/sound/pci/oxygen/oxygen.c
@@ -756,7 +756,7 @@ static const struct oxygen_model model_generic = {
 	.adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 };
 
-static int __devinit get_oxygen_model(struct oxygen *chip,
+static int get_oxygen_model(struct oxygen *chip,
 				      const struct pci_device_id *id)
 {
 	static const char *const names[] = {
@@ -848,7 +848,7 @@ static int __devinit get_oxygen_model(struct oxygen *chip,
 	return 0;
 }
 
-static int __devinit generic_oxygen_probe(struct pci_dev *pci,
+static int generic_oxygen_probe(struct pci_dev *pci,
 					  const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/oxygen/virtuoso.c b/sound/pci/oxygen/virtuoso.c
index ebae284..4a29c3a 100644
--- a/sound/pci/oxygen/virtuoso.c
+++ b/sound/pci/oxygen/virtuoso.c
@@ -58,7 +58,7 @@ static DEFINE_PCI_DEVICE_TABLE(xonar_ids) = {
 };
 MODULE_DEVICE_TABLE(pci, xonar_ids);
 
-static int __devinit get_xonar_model(struct oxygen *chip,
+static int get_xonar_model(struct oxygen *chip,
 				     const struct pci_device_id *id)
 {
 	if (get_xonar_pcm179x_model(chip, id) >= 0)
@@ -70,7 +70,7 @@ static int __devinit get_xonar_model(struct oxygen *chip,
 	return -EINVAL;
 }
 
-static int __devinit xonar_probe(struct pci_dev *pci,
+static int xonar_probe(struct pci_dev *pci,
 				 const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/oxygen/xonar_cs43xx.c b/sound/pci/oxygen/xonar_cs43xx.c
index c8febf4..babb5ea 100644
--- a/sound/pci/oxygen/xonar_cs43xx.c
+++ b/sound/pci/oxygen/xonar_cs43xx.c
@@ -431,7 +431,7 @@ static const struct oxygen_model model_xonar_d1 = {
 	.adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 };
 
-int __devinit get_xonar_cs43xx_model(struct oxygen *chip,
+int get_xonar_cs43xx_model(struct oxygen *chip,
 				     const struct pci_device_id *id)
 {
 	switch (id->subdevice) {
diff --git a/sound/pci/oxygen/xonar_pcm179x.c b/sound/pci/oxygen/xonar_pcm179x.c
index 8433aa7..60785a6 100644
--- a/sound/pci/oxygen/xonar_pcm179x.c
+++ b/sound/pci/oxygen/xonar_pcm179x.c
@@ -1087,7 +1087,7 @@ static const struct oxygen_model model_xonar_st = {
 	.adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 };
 
-int __devinit get_xonar_pcm179x_model(struct oxygen *chip,
+int get_xonar_pcm179x_model(struct oxygen *chip,
 				      const struct pci_device_id *id)
 {
 	switch (id->subdevice) {
diff --git a/sound/pci/oxygen/xonar_wm87x6.c b/sound/pci/oxygen/xonar_wm87x6.c
index b555b62..9fe2ed9 100644
--- a/sound/pci/oxygen/xonar_wm87x6.c
+++ b/sound/pci/oxygen/xonar_wm87x6.c
@@ -1320,7 +1320,7 @@ static const struct oxygen_model model_xonar_hdav_slim = {
 	.adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 };
 
-int __devinit get_xonar_wm87x6_model(struct oxygen *chip,
+int get_xonar_wm87x6_model(struct oxygen *chip,
 				     const struct pci_device_id *id)
 {
 	switch (id->subdevice) {
diff --git a/sound/pci/pcxhr/pcxhr.c b/sound/pci/pcxhr/pcxhr.c
index 2007a33..cc2008a 100644
--- a/sound/pci/pcxhr/pcxhr.c
+++ b/sound/pci/pcxhr/pcxhr.c
@@ -1203,7 +1203,7 @@ static int pcxhr_chip_dev_free(struct snd_device *device)
 
 /*
  */
-static int __devinit pcxhr_create(struct pcxhr_mgr *mgr,
+static int pcxhr_create(struct pcxhr_mgr *mgr,
 				  struct snd_card *card, int idx)
 {
 	int err;
@@ -1453,7 +1453,7 @@ static void pcxhr_proc_ltc(struct snd_info_entry *entry,
 	}
 }
 
-static void __devinit pcxhr_proc_init(struct snd_pcxhr *chip)
+static void pcxhr_proc_init(struct snd_pcxhr *chip)
 {
 	struct snd_info_entry *entry;
 
@@ -1513,7 +1513,7 @@ static int pcxhr_free(struct pcxhr_mgr *mgr)
 /*
  *    probe function - creates the card manager
  */
-static int __devinit pcxhr_probe(struct pci_dev *pci,
+static int pcxhr_probe(struct pci_dev *pci,
 				 const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/riptide/riptide.c b/sound/pci/riptide/riptide.c
index 9638a5a..42da7d5 100644
--- a/sound/pci/riptide/riptide.c
+++ b/sound/pci/riptide/riptide.c
@@ -1706,8 +1706,7 @@ static struct snd_pcm_ops snd_riptide_capture_ops = {
 	.pointer = snd_riptide_pointer,
 };
 
-static int __devinit
-snd_riptide_pcm(struct snd_riptide *chip, int device, struct snd_pcm **rpcm)
+static int snd_riptide_pcm(struct snd_riptide *chip, int device, struct snd_pcm **rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1857,8 +1856,7 @@ static int snd_riptide_dev_free(struct snd_device *device)
 	return snd_riptide_free(chip);
 }
 
-static int __devinit
-snd_riptide_create(struct snd_card *card, struct pci_dev *pci,
+static int snd_riptide_create(struct snd_card *card, struct pci_dev *pci,
 		   struct snd_riptide **rchip)
 {
 	struct snd_riptide *chip;
@@ -1993,7 +1991,7 @@ snd_riptide_proc_read(struct snd_info_entry *entry,
 	snd_iprintf(buffer, "\n");
 }
 
-static void __devinit snd_riptide_proc_init(struct snd_riptide *chip)
+static void snd_riptide_proc_init(struct snd_riptide *chip)
 {
 	struct snd_info_entry *entry;
 
@@ -2001,7 +1999,7 @@ static void __devinit snd_riptide_proc_init(struct snd_riptide *chip)
 		snd_info_set_text_ops(entry, chip, snd_riptide_proc_read);
 }
 
-static int __devinit snd_riptide_mixer(struct snd_riptide *chip)
+static int snd_riptide_mixer(struct snd_riptide *chip)
 {
 	struct snd_ac97_bus *pbus;
 	struct snd_ac97_template ac97;
@@ -2027,8 +2025,7 @@ static int __devinit snd_riptide_mixer(struct snd_riptide *chip)
 
 #ifdef SUPPORT_JOYSTICK
 
-static int __devinit
-snd_riptide_joystick_probe(struct pci_dev *pci, const struct pci_device_id *id)
+static int snd_riptide_joystick_probe(struct pci_dev *pci, const struct pci_device_id *id)
 {
 	static int dev;
 	struct gameport *gameport;
@@ -2071,8 +2068,7 @@ static void __devexit snd_riptide_joystick_remove(struct pci_dev *pci)
 }
 #endif
 
-static int __devinit
-snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
+static int snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 {
 	static int dev;
 	struct snd_card *card;
diff --git a/sound/pci/rme32.c b/sound/pci/rme32.c
index d7db4d3..1378c3c 100644
--- a/sound/pci/rme32.c
+++ b/sound/pci/rme32.c
@@ -1332,7 +1332,7 @@ snd_rme32_free_adat_pcm(struct snd_pcm *pcm)
 	rme32->adat_pcm = NULL;
 }
 
-static int __devinit snd_rme32_create(struct rme32 * rme32)
+static int snd_rme32_create(struct rme32 * rme32)
 {
 	struct pci_dev *pci = rme32->pci;
 	int err;
@@ -1554,7 +1554,7 @@ snd_rme32_proc_read(struct snd_info_entry * entry, struct snd_info_buffer *buffe
 	}
 }
 
-static void __devinit snd_rme32_proc_init(struct rme32 * rme32)
+static void snd_rme32_proc_init(struct rme32 * rme32)
 {
 	struct snd_info_entry *entry;
 
@@ -1922,8 +1922,7 @@ static void snd_rme32_card_free(struct snd_card *card)
 	snd_rme32_free(card->private_data);
 }
 
-static int __devinit
-snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
+static int snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 {
 	static int dev;
 	struct rme32 *rme32;
diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c
index 4486e75..c145d80 100644
--- a/sound/pci/rme96.c
+++ b/sound/pci/rme96.c
@@ -270,7 +270,7 @@ snd_rme96_playback_pointer(struct snd_pcm_substream *substream);
 static snd_pcm_uframes_t
 snd_rme96_capture_pointer(struct snd_pcm_substream *substream);
 
-static void __devinit 
+static void
 snd_rme96_proc_init(struct rme96 *rme96);
 
 static int
@@ -1538,8 +1538,7 @@ snd_rme96_free_adat_pcm(struct snd_pcm *pcm)
 	rme96->adat_pcm = NULL;
 }
 
-static int __devinit
-snd_rme96_create(struct rme96 *rme96)
+static int snd_rme96_create(struct rme96 *rme96)
 {
 	struct pci_dev *pci = rme96->pci;
 	int err;
@@ -1786,7 +1785,7 @@ snd_rme96_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer
 	}
 }
 
-static void __devinit 
+static void
 snd_rme96_proc_init(struct rme96 *rme96)
 {
 	struct snd_info_entry *entry;
@@ -2326,8 +2325,7 @@ static void snd_rme96_card_free(struct snd_card *card)
 	snd_rme96_free(card->private_data);
 }
 
-static int __devinit
-snd_rme96_probe(struct pci_dev *pci,
+static int snd_rme96_probe(struct pci_dev *pci,
 		const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index 916aff1..bff2f60 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -4020,7 +4020,7 @@ static void snd_hdsp_free_buffers(struct hdsp *hdsp)
 	snd_hammerfall_free_buffer(&hdsp->playback_dma_buf, hdsp->pci);
 }
 
-static int __devinit snd_hdsp_initialize_memory(struct hdsp *hdsp)
+static int snd_hdsp_initialize_memory(struct hdsp *hdsp)
 {
 	unsigned long pb_bus, cb_bus;
 
@@ -5408,7 +5408,7 @@ static int hdsp_request_fw_loader(struct hdsp *hdsp)
 }
 #endif
 
-static int __devinit snd_hdsp_create(struct snd_card *card,
+static int snd_hdsp_create(struct snd_card *card,
 				     struct hdsp *hdsp)
 {
 	struct pci_dev *pci = hdsp->pci;
@@ -5586,7 +5586,7 @@ static void snd_hdsp_card_free(struct snd_card *card)
 		snd_hdsp_free(hdsp);
 }
 
-static int __devinit snd_hdsp_probe(struct pci_dev *pci,
+static int snd_hdsp_probe(struct pci_dev *pci,
 				    const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 2435cb5..4724808 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -962,9 +962,9 @@ static DEFINE_PCI_DEVICE_TABLE(snd_hdspm_ids) = {
 MODULE_DEVICE_TABLE(pci, snd_hdspm_ids);
 
 /* prototypes */
-static int __devinit snd_hdspm_create_alsa_devices(struct snd_card *card,
+static int snd_hdspm_create_alsa_devices(struct snd_card *card,
 						   struct hdspm * hdspm);
-static int __devinit snd_hdspm_create_pcm(struct snd_card *card,
+static int snd_hdspm_create_pcm(struct snd_card *card,
 					  struct hdspm * hdspm);
 
 static inline void snd_hdspm_initialize_midi_flush(struct hdspm *hdspm);
@@ -1845,7 +1845,7 @@ static struct snd_rawmidi_ops snd_hdspm_midi_input =
 	.trigger =	snd_hdspm_midi_input_trigger,
 };
 
-static int __devinit snd_hdspm_create_midi (struct snd_card *card,
+static int snd_hdspm_create_midi (struct snd_card *card,
 					    struct hdspm *hdspm, int id)
 {
 	int err;
@@ -5233,7 +5233,7 @@ static void snd_hdspm_proc_ports_out(struct snd_info_entry *entry,
 }
 
 
-static void __devinit snd_hdspm_proc_init(struct hdspm *hdspm)
+static void snd_hdspm_proc_init(struct hdspm *hdspm)
 {
 	struct snd_info_entry *entry;
 
@@ -6369,7 +6369,7 @@ static struct snd_pcm_ops snd_hdspm_capture_ops = {
 	.page = snd_pcm_sgbuf_ops_page,
 };
 
-static int __devinit snd_hdspm_create_hwdep(struct snd_card *card,
+static int snd_hdspm_create_hwdep(struct snd_card *card,
 					    struct hdspm * hdspm)
 {
 	struct snd_hwdep *hw;
@@ -6395,7 +6395,7 @@ static int __devinit snd_hdspm_create_hwdep(struct snd_card *card,
 /*------------------------------------------------------------
    memory interface
  ------------------------------------------------------------*/
-static int __devinit snd_hdspm_preallocate_memory(struct hdspm *hdspm)
+static int snd_hdspm_preallocate_memory(struct hdspm *hdspm)
 {
 	int err;
 	struct snd_pcm *pcm;
@@ -6436,7 +6436,7 @@ static void hdspm_set_sgbuf(struct hdspm *hdspm,
 
 
 /* ------------- ALSA Devices ---------------------------- */
-static int __devinit snd_hdspm_create_pcm(struct snd_card *card,
+static int snd_hdspm_create_pcm(struct snd_card *card,
 					  struct hdspm *hdspm)
 {
 	struct snd_pcm *pcm;
@@ -6472,7 +6472,7 @@ static inline void snd_hdspm_initialize_midi_flush(struct hdspm * hdspm)
 		snd_hdspm_flush_midi_input(hdspm, i);
 }
 
-static int __devinit snd_hdspm_create_alsa_devices(struct snd_card *card,
+static int snd_hdspm_create_alsa_devices(struct snd_card *card,
 						   struct hdspm * hdspm)
 {
 	int err, i;
@@ -6531,7 +6531,7 @@ static int __devinit snd_hdspm_create_alsa_devices(struct snd_card *card,
 	return 0;
 }
 
-static int __devinit snd_hdspm_create(struct snd_card *card,
+static int snd_hdspm_create(struct snd_card *card,
 		struct hdspm *hdspm) {
 
 	struct pci_dev *pci = hdspm->pci;
@@ -6905,7 +6905,7 @@ static void snd_hdspm_card_free(struct snd_card *card)
 }
 
 
-static int __devinit snd_hdspm_probe(struct pci_dev *pci,
+static int snd_hdspm_probe(struct pci_dev *pci,
 				     const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/rme9652/rme9652.c b/sound/pci/rme9652/rme9652.c
index 125d745..077cfb7 100644
--- a/sound/pci/rme9652/rme9652.c
+++ b/sound/pci/rme9652/rme9652.c
@@ -1757,7 +1757,7 @@ snd_rme9652_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buff
 	snd_iprintf(buffer, "\n");
 }
 
-static void __devinit snd_rme9652_proc_init(struct snd_rme9652 *rme9652)
+static void snd_rme9652_proc_init(struct snd_rme9652 *rme9652)
 {
 	struct snd_info_entry *entry;
 
@@ -1788,7 +1788,7 @@ static int snd_rme9652_free(struct snd_rme9652 *rme9652)
 	return 0;
 }
 
-static int __devinit snd_rme9652_initialize_memory(struct snd_rme9652 *rme9652)
+static int snd_rme9652_initialize_memory(struct snd_rme9652 *rme9652)
 {
 	unsigned long pb_bus, cb_bus;
 
@@ -2414,7 +2414,7 @@ static struct snd_pcm_ops snd_rme9652_capture_ops = {
 	.copy =		snd_rme9652_capture_copy,
 };
 
-static int __devinit snd_rme9652_create_pcm(struct snd_card *card,
+static int snd_rme9652_create_pcm(struct snd_card *card,
 					 struct snd_rme9652 *rme9652)
 {
 	struct snd_pcm *pcm;
@@ -2438,7 +2438,7 @@ static int __devinit snd_rme9652_create_pcm(struct snd_card *card,
 	return 0;
 }
 
-static int __devinit snd_rme9652_create(struct snd_card *card,
+static int snd_rme9652_create(struct snd_card *card,
 				     struct snd_rme9652 *rme9652,
 				     int precise_ptr)
 {
@@ -2578,7 +2578,7 @@ static void snd_rme9652_card_free(struct snd_card *card)
 		snd_rme9652_free(rme9652);
 }
 
-static int __devinit snd_rme9652_probe(struct pci_dev *pci,
+static int snd_rme9652_probe(struct pci_dev *pci,
 				       const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/sis7019.c b/sound/pci/sis7019.c
index e1786ef..8548deb 100644
--- a/sound/pci/sis7019.c
+++ b/sound/pci/sis7019.c
@@ -894,7 +894,7 @@ static struct snd_pcm_ops sis_capture_ops = {
 	.pointer = sis_pcm_pointer,
 };
 
-static int __devinit sis_pcm_create(struct sis7019 *sis)
+static int sis_pcm_create(struct sis7019 *sis)
 {
 	struct snd_pcm *pcm;
 	int rc;
@@ -1013,7 +1013,7 @@ static unsigned short sis_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
 					(reg << 8) | cmd[ac97->num]);
 }
 
-static int __devinit sis_mixer_create(struct sis7019 *sis)
+static int sis_mixer_create(struct sis7019 *sis)
 {
 	struct snd_ac97_bus *bus;
 	struct snd_ac97_template ac97;
@@ -1326,7 +1326,7 @@ static int sis_alloc_suspend(struct sis7019 *sis)
 	return 0;
 }
 
-static int __devinit sis_chip_create(struct snd_card *card,
+static int sis_chip_create(struct snd_card *card,
 					struct pci_dev *pci)
 {
 	struct sis7019 *sis = card->private_data;
@@ -1417,7 +1417,7 @@ error_out:
 	return rc;
 }
 
-static int __devinit snd_sis7019_probe(struct pci_dev *pci,
+static int snd_sis7019_probe(struct pci_dev *pci,
 					const struct pci_device_id *pci_id)
 {
 	struct snd_card *card;
diff --git a/sound/pci/sonicvibes.c b/sound/pci/sonicvibes.c
index bc5ca1d2..ead7218 100644
--- a/sound/pci/sonicvibes.c
+++ b/sound/pci/sonicvibes.c
@@ -877,7 +877,7 @@ static struct snd_pcm_ops snd_sonicvibes_capture_ops = {
 	.pointer =	snd_sonicvibes_capture_pointer,
 };
 
-static int __devinit snd_sonicvibes_pcm(struct sonicvibes * sonic, int device, struct snd_pcm ** rpcm)
+static int snd_sonicvibes_pcm(struct sonicvibes * sonic, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1118,7 +1118,7 @@ static void snd_sonicvibes_master_free(struct snd_kcontrol *kcontrol)
 	sonic->master_volume = NULL;
 }
 
-static int __devinit snd_sonicvibes_mixer(struct sonicvibes * sonic)
+static int snd_sonicvibes_mixer(struct sonicvibes * sonic)
 {
 	struct snd_card *card;
 	struct snd_kcontrol *kctl;
@@ -1175,7 +1175,7 @@ static void snd_sonicvibes_proc_read(struct snd_info_entry *entry,
 	snd_iprintf(buffer, "MIDI to ext. Tx  : %s\n", tmp & 0x04 ? "on" : "off");
 }
 
-static void __devinit snd_sonicvibes_proc_init(struct sonicvibes * sonic)
+static void snd_sonicvibes_proc_init(struct sonicvibes * sonic)
 {
 	struct snd_info_entry *entry;
 
@@ -1191,7 +1191,7 @@ static void __devinit snd_sonicvibes_proc_init(struct sonicvibes * sonic)
 static struct snd_kcontrol_new snd_sonicvibes_game_control __devinitdata =
 SONICVIBES_SINGLE("Joystick Speed", 0, SV_IREG_GAME_PORT, 1, 15, 0);
 
-static int __devinit snd_sonicvibes_create_gameport(struct sonicvibes *sonic)
+static int snd_sonicvibes_create_gameport(struct sonicvibes *sonic)
 {
 	struct gameport *gp;
 
@@ -1246,7 +1246,7 @@ static int snd_sonicvibes_dev_free(struct snd_device *device)
 	return snd_sonicvibes_free(sonic);
 }
 
-static int __devinit snd_sonicvibes_create(struct snd_card *card,
+static int snd_sonicvibes_create(struct snd_card *card,
 					struct pci_dev *pci,
 					int reverb,
 					int mge,
@@ -1422,7 +1422,7 @@ static void snd_sonicvibes_midi_input_close(struct snd_mpu401 * mpu)
 	outb(sonic->irqmask |= SV_MIDI_MASK, SV_REG(sonic, IRQMASK));
 }
 
-static int __devinit snd_sonicvibes_midi(struct sonicvibes * sonic,
+static int snd_sonicvibes_midi(struct sonicvibes * sonic,
 					 struct snd_rawmidi *rmidi)
 {
 	struct snd_mpu401 * mpu = rmidi->private_data;
@@ -1441,7 +1441,7 @@ static int __devinit snd_sonicvibes_midi(struct sonicvibes * sonic,
 	return 0;
 }
 
-static int __devinit snd_sonic_probe(struct pci_dev *pci,
+static int snd_sonic_probe(struct pci_dev *pci,
 				     const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/trident/trident.c b/sound/pci/trident/trident.c
index 8cec678..7594bc2 100644
--- a/sound/pci/trident/trident.c
+++ b/sound/pci/trident/trident.c
@@ -73,7 +73,7 @@ static DEFINE_PCI_DEVICE_TABLE(snd_trident_ids) = {
 
 MODULE_DEVICE_TABLE(pci, snd_trident_ids);
 
-static int __devinit snd_trident_probe(struct pci_dev *pci,
+static int snd_trident_probe(struct pci_dev *pci,
 				       const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/trident/trident_main.c b/sound/pci/trident/trident_main.c
index 06b10d1..1bf070b 100644
--- a/sound/pci/trident/trident_main.c
+++ b/sound/pci/trident/trident_main.c
@@ -2171,7 +2171,7 @@ static struct snd_pcm_ops snd_trident_spdif_7018_ops = {
   
   ---------------------------------------------------------------------------*/
 
-int __devinit snd_trident_pcm(struct snd_trident * trident,
+int snd_trident_pcm(struct snd_trident * trident,
 			      int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
@@ -2229,7 +2229,7 @@ int __devinit snd_trident_pcm(struct snd_trident * trident,
   
   ---------------------------------------------------------------------------*/
 
-int __devinit snd_trident_foldback_pcm(struct snd_trident * trident,
+int snd_trident_foldback_pcm(struct snd_trident * trident,
 				       int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *foldback;
@@ -2286,7 +2286,7 @@ int __devinit snd_trident_foldback_pcm(struct snd_trident * trident,
   
   ---------------------------------------------------------------------------*/
 
-int __devinit snd_trident_spdif_pcm(struct snd_trident * trident,
+int snd_trident_spdif_pcm(struct snd_trident * trident,
 				    int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *spdif;
@@ -2972,7 +2972,7 @@ static int snd_trident_pcm_mixer_free(struct snd_trident *trident, struct snd_tr
   
   ---------------------------------------------------------------------------*/
 
-static int __devinit snd_trident_mixer(struct snd_trident * trident, int pcm_spdif_device)
+static int snd_trident_mixer(struct snd_trident * trident, int pcm_spdif_device)
 {
 	struct snd_ac97_template _ac97;
 	struct snd_card *card = trident->card;
@@ -3191,7 +3191,7 @@ static int snd_trident_gameport_open(struct gameport *gameport, int mode)
 	}
 }
 
-int __devinit snd_trident_create_gameport(struct snd_trident *chip)
+int snd_trident_create_gameport(struct snd_trident *chip)
 {
 	struct gameport *gp;
 
@@ -3225,7 +3225,7 @@ static inline void snd_trident_free_gameport(struct snd_trident *chip)
 	}
 }
 #else
-int __devinit snd_trident_create_gameport(struct snd_trident *chip) { return -ENOSYS; }
+int snd_trident_create_gameport(struct snd_trident *chip) { return -ENOSYS; }
 static inline void snd_trident_free_gameport(struct snd_trident *chip) { }
 #endif /* CONFIG_GAMEPORT */
 
@@ -3329,7 +3329,7 @@ static void snd_trident_proc_read(struct snd_info_entry *entry,
 	}
 }
 
-static void __devinit snd_trident_proc_init(struct snd_trident * trident)
+static void snd_trident_proc_init(struct snd_trident * trident)
 {
 	struct snd_info_entry *entry;
 	const char *s = "trident";
@@ -3358,7 +3358,7 @@ static int snd_trident_dev_free(struct snd_device *device)
   
   ---------------------------------------------------------------------------*/
 
-static int __devinit snd_trident_tlb_alloc(struct snd_trident *trident)
+static int snd_trident_tlb_alloc(struct snd_trident *trident)
 {
 	int i;
 
@@ -3539,7 +3539,7 @@ static int snd_trident_sis_init(struct snd_trident *trident)
   
   ---------------------------------------------------------------------------*/
 
-int __devinit snd_trident_create(struct snd_card *card,
+int snd_trident_create(struct snd_card *card,
 		       struct pci_dev *pci,
 		       int pcm_streams,
 		       int pcm_spdif_device,
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index 5312cb2..7ac1fe2 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -1437,7 +1437,7 @@ static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
 /*
  * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
  */
-static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
+static int snd_via8233_pcm_new(struct via82xx *chip)
 {
 	struct snd_pcm *pcm;
 	struct snd_pcm_chmap *chmap;
@@ -1505,7 +1505,7 @@ static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
 /*
  * create pcm instances for VIA8233A
  */
-static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
+static int snd_via8233a_pcm_new(struct via82xx *chip)
 {
 	struct snd_pcm *pcm;
 	struct snd_pcm_chmap *chmap;
@@ -1566,7 +1566,7 @@ static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
 /*
  * create a pcm instance for via686a/b
  */
-static int __devinit snd_via686_pcm_new(struct via82xx *chip)
+static int snd_via686_pcm_new(struct via82xx *chip)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1895,7 +1895,7 @@ static struct ac97_quirk ac97_quirks[] = {
 	{ } /* terminator */
 };
 
-static int __devinit snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
+static int snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
 {
 	struct snd_ac97_template ac97;
 	int err;
@@ -1930,7 +1930,7 @@ static int __devinit snd_via82xx_mixer_new(struct via82xx *chip, const char *qui
 
 #ifdef SUPPORT_JOYSTICK
 #define JOYSTICK_ADDR	0x200
-static int __devinit snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
+static int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
 {
 	struct gameport *gp;
 	struct resource *r;
@@ -1990,7 +1990,7 @@ static inline void snd_via686_free_gameport(struct via82xx *chip) { }
  *
  */
 
-static int __devinit snd_via8233_init_misc(struct via82xx *chip)
+static int snd_via8233_init_misc(struct via82xx *chip)
 {
 	int i, err, caps;
 	unsigned char val;
@@ -2047,7 +2047,7 @@ static int __devinit snd_via8233_init_misc(struct via82xx *chip)
 	return 0;
 }
 
-static int __devinit snd_via686_init_misc(struct via82xx *chip)
+static int snd_via686_init_misc(struct via82xx *chip)
 {
 	unsigned char legacy, legacy_cfg;
 	int rev_h = 0;
@@ -2137,7 +2137,7 @@ static void snd_via82xx_proc_read(struct snd_info_entry *entry,
 	}
 }
 
-static void __devinit snd_via82xx_proc_init(struct via82xx *chip)
+static void snd_via82xx_proc_init(struct via82xx *chip)
 {
 	struct snd_info_entry *entry;
 
@@ -2370,7 +2370,7 @@ static int snd_via82xx_dev_free(struct snd_device *device)
 	return snd_via82xx_free(chip);
 }
 
-static int __devinit snd_via82xx_create(struct snd_card *card,
+static int snd_via82xx_create(struct snd_card *card,
 					struct pci_dev *pci,
 					int chip_type,
 					int revision,
@@ -2510,7 +2510,7 @@ static struct snd_pci_quirk dxs_whitelist[] __devinitdata = {
 	{ } /* terminator */
 };
 
-static int __devinit check_dxs_list(struct pci_dev *pci, int revision)
+static int check_dxs_list(struct pci_dev *pci, int revision)
 {
 	const struct snd_pci_quirk *w;
 
@@ -2535,7 +2535,7 @@ static int __devinit check_dxs_list(struct pci_dev *pci, int revision)
 	return VIA_DXS_48K;
 };
 
-static int __devinit snd_via82xx_probe(struct pci_dev *pci,
+static int snd_via82xx_probe(struct pci_dev *pci,
 				       const struct pci_device_id *pci_id)
 {
 	struct snd_card *card;
diff --git a/sound/pci/via82xx_modem.c b/sound/pci/via82xx_modem.c
index fa2ecc2..a7f5c64 100644
--- a/sound/pci/via82xx_modem.c
+++ b/sound/pci/via82xx_modem.c
@@ -836,7 +836,7 @@ static void init_viadev(struct via82xx_modem *chip, int idx, unsigned int reg_of
 /*
  * create a pcm instance for via686a/b
  */
-static int __devinit snd_via686_pcm_new(struct via82xx_modem *chip)
+static int snd_via686_pcm_new(struct via82xx_modem *chip)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -885,7 +885,7 @@ static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
 }
 
 
-static int __devinit snd_via82xx_mixer_new(struct via82xx_modem *chip)
+static int snd_via82xx_mixer_new(struct via82xx_modem *chip)
 {
 	struct snd_ac97_template ac97;
 	int err;
@@ -928,7 +928,7 @@ static void snd_via82xx_proc_read(struct snd_info_entry *entry, struct snd_info_
 	}
 }
 
-static void __devinit snd_via82xx_proc_init(struct via82xx_modem *chip)
+static void snd_via82xx_proc_init(struct via82xx_modem *chip)
 {
 	struct snd_info_entry *entry;
 
@@ -1103,7 +1103,7 @@ static int snd_via82xx_dev_free(struct snd_device *device)
 	return snd_via82xx_free(chip);
 }
 
-static int __devinit snd_via82xx_create(struct snd_card *card,
+static int snd_via82xx_create(struct snd_card *card,
 					struct pci_dev *pci,
 					int chip_type,
 					int revision,
@@ -1168,7 +1168,7 @@ static int __devinit snd_via82xx_create(struct snd_card *card,
 }
 
 
-static int __devinit snd_via82xx_probe(struct pci_dev *pci,
+static int snd_via82xx_probe(struct pci_dev *pci,
 				       const struct pci_device_id *pci_id)
 {
 	struct snd_card *card;
diff --git a/sound/pci/vx222/vx222.c b/sound/pci/vx222/vx222.c
index 22d3f92..6d4fbcf 100644
--- a/sound/pci/vx222/vx222.c
+++ b/sound/pci/vx222/vx222.c
@@ -134,7 +134,7 @@ static int snd_vx222_dev_free(struct snd_device *device)
 }
 
 
-static int __devinit snd_vx222_create(struct snd_card *card, struct pci_dev *pci,
+static int snd_vx222_create(struct snd_card *card, struct pci_dev *pci,
 				      struct snd_vx_hardware *hw,
 				      struct snd_vx222 **rchip)
 {
@@ -188,7 +188,7 @@ static int __devinit snd_vx222_create(struct snd_card *card, struct pci_dev *pci
 }
 
 
-static int __devinit snd_vx222_probe(struct pci_dev *pci,
+static int snd_vx222_probe(struct pci_dev *pci,
 				     const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/ymfpci/ymfpci.c b/sound/pci/ymfpci/ymfpci.c
index d5ccc2d..2dbb55f 100644
--- a/sound/pci/ymfpci/ymfpci.c
+++ b/sound/pci/ymfpci/ymfpci.c
@@ -79,7 +79,7 @@ static DEFINE_PCI_DEVICE_TABLE(snd_ymfpci_ids) = {
 MODULE_DEVICE_TABLE(pci, snd_ymfpci_ids);
 
 #ifdef SUPPORT_JOYSTICK
-static int __devinit snd_ymfpci_create_gameport(struct snd_ymfpci *chip, int dev,
+static int snd_ymfpci_create_gameport(struct snd_ymfpci *chip, int dev,
 						int legacy_ctrl, int legacy_ctrl2)
 {
 	struct gameport *gp;
@@ -167,7 +167,7 @@ static inline int snd_ymfpci_create_gameport(struct snd_ymfpci *chip, int dev, i
 void snd_ymfpci_free_gameport(struct snd_ymfpci *chip) { }
 #endif /* SUPPORT_JOYSTICK */
 
-static int __devinit snd_card_ymfpci_probe(struct pci_dev *pci,
+static int snd_card_ymfpci_probe(struct pci_dev *pci,
 					   const struct pci_device_id *pci_id)
 {
 	static int dev;
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index 3a6f03f..b947594 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -598,7 +598,7 @@ static void snd_ymfpci_pcm_init_voice(struct snd_ymfpci_pcm *ypcm, unsigned int
 	}
 }
 
-static int __devinit snd_ymfpci_ac3_init(struct snd_ymfpci *chip)
+static int snd_ymfpci_ac3_init(struct snd_ymfpci *chip)
 {
 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
 				4096, &chip->ac3_tmp_base) < 0)
@@ -1144,7 +1144,7 @@ static struct snd_pcm_ops snd_ymfpci_capture_rec_ops = {
 	.pointer =		snd_ymfpci_capture_pointer,
 };
 
-int __devinit snd_ymfpci_pcm(struct snd_ymfpci *chip, int device, struct snd_pcm ** rpcm)
+int snd_ymfpci_pcm(struct snd_ymfpci *chip, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1187,7 +1187,7 @@ static struct snd_pcm_ops snd_ymfpci_capture_ac97_ops = {
 	.pointer =		snd_ymfpci_capture_pointer,
 };
 
-int __devinit snd_ymfpci_pcm2(struct snd_ymfpci *chip, int device, struct snd_pcm ** rpcm)
+int snd_ymfpci_pcm2(struct snd_ymfpci *chip, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1225,7 +1225,7 @@ static struct snd_pcm_ops snd_ymfpci_playback_spdif_ops = {
 	.pointer =		snd_ymfpci_playback_pointer,
 };
 
-int __devinit snd_ymfpci_pcm_spdif(struct snd_ymfpci *chip, int device, struct snd_pcm ** rpcm)
+int snd_ymfpci_pcm_spdif(struct snd_ymfpci *chip, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1270,7 +1270,7 @@ static const struct snd_pcm_chmap_elem surround_map[] = {
 	{ }
 };
 
-int __devinit snd_ymfpci_pcm_4ch(struct snd_ymfpci *chip, int device, struct snd_pcm ** rpcm)
+int snd_ymfpci_pcm_4ch(struct snd_ymfpci *chip, int device, struct snd_pcm ** rpcm)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -1826,7 +1826,7 @@ static void snd_ymfpci_mixer_free_ac97(struct snd_ac97 *ac97)
 	chip->ac97 = NULL;
 }
 
-int __devinit snd_ymfpci_mixer(struct snd_ymfpci *chip, int rear_switch)
+int snd_ymfpci_mixer(struct snd_ymfpci *chip, int rear_switch)
 {
 	struct snd_ac97_template ac97;
 	struct snd_kcontrol *kctl;
@@ -1970,7 +1970,7 @@ static struct snd_timer_hardware snd_ymfpci_timer_hw = {
 	.precise_resolution = snd_ymfpci_timer_precise_resolution,
 };
 
-int __devinit snd_ymfpci_timer(struct snd_ymfpci *chip, int device)
+int snd_ymfpci_timer(struct snd_ymfpci *chip, int device)
 {
 	struct snd_timer *timer = NULL;
 	struct snd_timer_id tid;
@@ -2006,7 +2006,7 @@ static void snd_ymfpci_proc_read(struct snd_info_entry *entry,
 		snd_iprintf(buffer, "%04x: %04x\n", i, snd_ymfpci_readl(chip, i));
 }
 
-static int __devinit snd_ymfpci_proc_init(struct snd_card *card, struct snd_ymfpci *chip)
+static int snd_ymfpci_proc_init(struct snd_card *card, struct snd_ymfpci *chip)
 {
 	struct snd_info_entry *entry;
 	
@@ -2128,7 +2128,7 @@ static void snd_ymfpci_download_image(struct snd_ymfpci *chip)
 	snd_ymfpci_enable_dsp(chip);
 }
 
-static int __devinit snd_ymfpci_memalloc(struct snd_ymfpci *chip)
+static int snd_ymfpci_memalloc(struct snd_ymfpci *chip)
 {
 	long size, playback_ctrl_size;
 	int voice, bank, reg;
@@ -2394,7 +2394,7 @@ static int snd_ymfpci_resume(struct device *dev)
 SIMPLE_DEV_PM_OPS(snd_ymfpci_pm, snd_ymfpci_suspend, snd_ymfpci_resume);
 #endif /* CONFIG_PM_SLEEP */
 
-int __devinit snd_ymfpci_create(struct snd_card *card,
+int snd_ymfpci_create(struct snd_card *card,
 				struct pci_dev * pci,
 				unsigned short old_legacy_ctrl,
 				struct snd_ymfpci ** rchip)
diff --git a/sound/ppc/awacs.c b/sound/ppc/awacs.c
index b366793..667a067 100644
--- a/sound/ppc/awacs.c
+++ b/sound/ppc/awacs.c
@@ -872,8 +872,7 @@ static void snd_pmac_awacs_update_automute(struct snd_pmac *chip, int do_notify)
 /*
  * initialize chip
  */
-int __devinit
-snd_pmac_awacs_init(struct snd_pmac *chip)
+int snd_pmac_awacs_init(struct snd_pmac *chip)
 {
 	int pm7500 = IS_PM7500;
 	int pm5500 = IS_PM5500;
diff --git a/sound/ppc/beep.c b/sound/ppc/beep.c
index a9d3507..0040f04 100644
--- a/sound/ppc/beep.c
+++ b/sound/ppc/beep.c
@@ -215,7 +215,7 @@ static struct snd_kcontrol_new snd_pmac_beep_mixer = {
 };
 
 /* Initialize beep stuff */
-int __devinit snd_pmac_attach_beep(struct snd_pmac *chip)
+int snd_pmac_attach_beep(struct snd_pmac *chip)
 {
 	struct pmac_beep *beep;
 	struct input_dev *input_dev;
diff --git a/sound/ppc/burgundy.c b/sound/ppc/burgundy.c
index 00e2d51..6c76724 100644
--- a/sound/ppc/burgundy.c
+++ b/sound/ppc/burgundy.c
@@ -617,7 +617,7 @@ static void snd_pmac_burgundy_update_automute(struct snd_pmac *chip, int do_noti
 /*
  * initialize burgundy
  */
-int __devinit snd_pmac_burgundy_init(struct snd_pmac *chip)
+int snd_pmac_burgundy_init(struct snd_pmac *chip)
 {
 	int imac = of_machine_is_compatible("iMac");
 	int i, err;
diff --git a/sound/ppc/daca.c b/sound/ppc/daca.c
index 24200b7..b865262 100644
--- a/sound/ppc/daca.c
+++ b/sound/ppc/daca.c
@@ -244,7 +244,7 @@ static void daca_cleanup(struct snd_pmac *chip)
 }
 
 /* exported */
-int __devinit snd_pmac_daca_init(struct snd_pmac *chip)
+int snd_pmac_daca_init(struct snd_pmac *chip)
 {
 	int i, err;
 	struct pmac_daca *mix;
diff --git a/sound/ppc/keywest.c b/sound/ppc/keywest.c
index 4080bec..01aecc2 100644
--- a/sound/ppc/keywest.c
+++ b/sound/ppc/keywest.c
@@ -115,7 +115,7 @@ void snd_pmac_keywest_cleanup(struct pmac_keywest *i2c)
 	}
 }
 
-int __devinit snd_pmac_tumbler_post_init(void)
+int snd_pmac_tumbler_post_init(void)
 {
 	int err;
 	
@@ -130,7 +130,7 @@ int __devinit snd_pmac_tumbler_post_init(void)
 }
 
 /* exported */
-int __devinit snd_pmac_keywest_init(struct pmac_keywest *i2c)
+int snd_pmac_keywest_init(struct pmac_keywest *i2c)
 {
 	int err;
 
diff --git a/sound/ppc/pmac.c b/sound/ppc/pmac.c
index ab96cde..792bf7b 100644
--- a/sound/ppc/pmac.c
+++ b/sound/ppc/pmac.c
@@ -702,7 +702,7 @@ static struct snd_pcm_ops snd_pmac_capture_ops = {
 	.pointer =	snd_pmac_capture_pointer,
 };
 
-int __devinit snd_pmac_pcm_new(struct snd_pmac *chip)
+int snd_pmac_pcm_new(struct snd_pmac *chip)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -907,7 +907,7 @@ static int snd_pmac_dev_free(struct snd_device *device)
  * check the machine support byteswap (little-endian)
  */
 
-static void __devinit detect_byte_swap(struct snd_pmac *chip)
+static void detect_byte_swap(struct snd_pmac *chip)
 {
 	struct device_node *mio;
 
@@ -933,7 +933,7 @@ static void __devinit detect_byte_swap(struct snd_pmac *chip)
 /*
  * detect a sound chip
  */
-static int __devinit snd_pmac_detect(struct snd_pmac *chip)
+static int snd_pmac_detect(struct snd_pmac *chip)
 {
 	struct device_node *sound;
 	struct device_node *dn;
@@ -1161,7 +1161,7 @@ static struct snd_kcontrol_new auto_mute_controls[] __devinitdata = {
 	},
 };
 
-int __devinit snd_pmac_add_automute(struct snd_pmac *chip)
+int snd_pmac_add_automute(struct snd_pmac *chip)
 {
 	int err;
 	chip->auto_mute = 1;
@@ -1178,7 +1178,7 @@ int __devinit snd_pmac_add_automute(struct snd_pmac *chip)
 /*
  * create and detect a pmac chip record
  */
-int __devinit snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return)
+int snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return)
 {
 	struct snd_pmac *chip;
 	struct device_node *np;
diff --git a/sound/ppc/powermac.c b/sound/ppc/powermac.c
index ce6db15..625d12e 100644
--- a/sound/ppc/powermac.c
+++ b/sound/ppc/powermac.c
@@ -51,7 +51,7 @@ static struct platform_device *device;
 /*
  */
 
-static int __devinit snd_pmac_probe(struct platform_device *devptr)
+static int snd_pmac_probe(struct platform_device *devptr)
 {
 	struct snd_card *card;
 	struct snd_pmac *chip;
diff --git a/sound/ppc/snd_ps3.c b/sound/ppc/snd_ps3.c
index 9b18b52..8c7dcbe 100644
--- a/sound/ppc/snd_ps3.c
+++ b/sound/ppc/snd_ps3.c
@@ -786,7 +786,7 @@ static struct snd_pcm_ops snd_ps3_pcm_spdif_ops = {
 };
 
 
-static int __devinit snd_ps3_map_mmio(void)
+static int snd_ps3_map_mmio(void)
 {
 	the_card.mapped_mmio_vaddr =
 		ioremap(the_card.ps3_dev->m_region->bus_addr,
@@ -808,7 +808,7 @@ static void snd_ps3_unmap_mmio(void)
 	the_card.mapped_mmio_vaddr = NULL;
 }
 
-static int __devinit snd_ps3_allocate_irq(void)
+static int snd_ps3_allocate_irq(void)
 {
 	int ret;
 	u64 lpar_addr, lpar_size;
@@ -866,7 +866,7 @@ static void snd_ps3_free_irq(void)
 	ps3_irq_plug_destroy(the_card.irq_no);
 }
 
-static void __devinit snd_ps3_audio_set_base_addr(uint64_t ioaddr_start)
+static void snd_ps3_audio_set_base_addr(uint64_t ioaddr_start)
 {
 	uint64_t val;
 	int ret;
@@ -882,7 +882,7 @@ static void __devinit snd_ps3_audio_set_base_addr(uint64_t ioaddr_start)
 			ret);
 }
 
-static void __devinit snd_ps3_audio_fixup(struct snd_ps3_card_info *card)
+static void snd_ps3_audio_fixup(struct snd_ps3_card_info *card)
 {
 	/*
 	 * avsetting driver seems to never change the followings
@@ -906,7 +906,7 @@ static void __devinit snd_ps3_audio_fixup(struct snd_ps3_card_info *card)
 		   PS3_AUDIO_AO_3WMCTRL_ASOPLRCK_DEFAULT);
 }
 
-static int __devinit snd_ps3_init_avsetting(struct snd_ps3_card_info *card)
+static int snd_ps3_init_avsetting(struct snd_ps3_card_info *card)
 {
 	int ret;
 	pr_debug("%s: start\n", __func__);
@@ -928,7 +928,7 @@ static int __devinit snd_ps3_init_avsetting(struct snd_ps3_card_info *card)
 	return ret;
 }
 
-static int __devinit snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
+static int snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
 {
 	int i, ret;
 	u64 lpar_addr, lpar_size;
diff --git a/sound/ppc/tumbler.c b/sound/ppc/tumbler.c
index 9cea84c..6dd2e47 100644
--- a/sound/ppc/tumbler.c
+++ b/sound/ppc/tumbler.c
@@ -1276,7 +1276,7 @@ static void tumbler_resume(struct snd_pmac *chip)
 #endif
 
 /* initialize tumbler */
-static int __devinit tumbler_init(struct snd_pmac *chip)
+static int tumbler_init(struct snd_pmac *chip)
 {
 	int irq;
 	struct pmac_tumbler *mix = chip->mixer_data;
@@ -1349,7 +1349,7 @@ static void tumbler_cleanup(struct snd_pmac *chip)
 }
 
 /* exported */
-int __devinit snd_pmac_tumbler_init(struct snd_pmac *chip)
+int snd_pmac_tumbler_init(struct snd_pmac *chip)
 {
 	int i, err;
 	struct pmac_tumbler *mix;
diff --git a/sound/sh/aica.c b/sound/sh/aica.c
index 2b776ee..a6de99f 100644
--- a/sound/sh/aica.c
+++ b/sound/sh/aica.c
@@ -574,7 +574,7 @@ static int load_aica_firmware(void)
 	return err;
 }
 
-static int __devinit add_aicamixer_controls(struct snd_card_aica
+static int add_aicamixer_controls(struct snd_card_aica
 					    *dreamcastcard)
 {
 	int err;
@@ -603,7 +603,7 @@ static int __devexit snd_aica_remove(struct platform_device *devptr)
 	return 0;
 }
 
-static int __devinit snd_aica_probe(struct platform_device *devptr)
+static int snd_aica_probe(struct platform_device *devptr)
 {
 	int err;
 	struct snd_card_aica *dreamcastcard;
diff --git a/sound/sh/sh_dac_audio.c b/sound/sh/sh_dac_audio.c
index 0a33947..b0f12f2 100644
--- a/sound/sh/sh_dac_audio.c
+++ b/sound/sh/sh_dac_audio.c
@@ -261,7 +261,7 @@ static struct snd_pcm_ops snd_sh_dac_pcm_ops = {
 	.mmap		= snd_pcm_lib_mmap_iomem,
 };
 
-static int __devinit snd_sh_dac_pcm(struct snd_sh_dac *chip, int device)
+static int snd_sh_dac_pcm(struct snd_sh_dac *chip, int device)
 {
 	int err;
 	struct snd_pcm *pcm;
@@ -346,7 +346,7 @@ static enum hrtimer_restart sh_dac_audio_timer(struct hrtimer *handle)
 }
 
 /* create  --  chip-specific constructor for the cards components */
-static int __devinit snd_sh_dac_create(struct snd_card *card,
+static int snd_sh_dac_create(struct snd_card *card,
 				       struct platform_device *devptr,
 				       struct snd_sh_dac **rchip)
 {
@@ -392,7 +392,7 @@ static int __devinit snd_sh_dac_create(struct snd_card *card,
 }
 
 /* driver .probe  --  constructor */
-static int __devinit snd_sh_dac_probe(struct platform_device *devptr)
+static int snd_sh_dac_probe(struct platform_device *devptr)
 {
 	struct snd_sh_dac *chip;
 	struct snd_card *card;
diff --git a/sound/soc/atmel/atmel-pcm.c b/sound/soc/atmel/atmel-pcm.c
index 194eb85..92cc26d 100644
--- a/sound/soc/atmel/atmel-pcm.c
+++ b/sound/soc/atmel/atmel-pcm.c
@@ -473,7 +473,7 @@ static struct snd_soc_platform_driver atmel_soc_platform = {
 	.resume		= atmel_pcm_resume,
 };
 
-static int __devinit atmel_soc_platform_probe(struct platform_device *pdev)
+static int atmel_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &atmel_soc_platform);
 }
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
index 90a1188..f2e6efd 100644
--- a/sound/soc/atmel/atmel_ssc_dai.c
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -787,7 +787,7 @@ static struct snd_soc_dai_driver atmel_ssc_dai[NUM_SSC_DEVICES] = {
 #endif
 };
 
-static __devinit int asoc_ssc_probe(struct platform_device *pdev)
+static int asoc_ssc_probe(struct platform_device *pdev)
 {
 	BUG_ON(pdev->id < 0);
 	BUG_ON(pdev->id >= ARRAY_SIZE(atmel_ssc_dai));
diff --git a/sound/soc/atmel/sam9g20_wm8731.c b/sound/soc/atmel/sam9g20_wm8731.c
index a1dfe46..1197515 100644
--- a/sound/soc/atmel/sam9g20_wm8731.c
+++ b/sound/soc/atmel/sam9g20_wm8731.c
@@ -195,7 +195,7 @@ static struct snd_soc_card snd_soc_at91sam9g20ek = {
 	.set_bias_level = at91sam9g20ek_set_bias_level,
 };
 
-static int __devinit at91sam9g20ek_audio_probe(struct platform_device *pdev)
+static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
 {
 	struct clk *pllb;
 	struct snd_soc_card *card = &snd_soc_at91sam9g20ek;
diff --git a/sound/soc/au1x/ac97c.c b/sound/soc/au1x/ac97c.c
index f54edf4..a444bfb 100644
--- a/sound/soc/au1x/ac97c.c
+++ b/sound/soc/au1x/ac97c.c
@@ -223,7 +223,7 @@ static struct snd_soc_dai_driver au1xac97c_dai_driver = {
 	.ops			= &alchemy_ac97c_ops,
 };
 
-static int __devinit au1xac97c_drvprobe(struct platform_device *pdev)
+static int au1xac97c_drvprobe(struct platform_device *pdev)
 {
 	int ret;
 	struct resource *iores, *dmares;
diff --git a/sound/soc/au1x/db1000.c b/sound/soc/au1x/db1000.c
index faf55ab..2a8bf01 100644
--- a/sound/soc/au1x/db1000.c
+++ b/sound/soc/au1x/db1000.c
@@ -34,7 +34,7 @@ static struct snd_soc_card db1000_ac97 = {
 	.num_links	= 1,
 };
 
-static int __devinit db1000_audio_probe(struct platform_device *pdev)
+static int db1000_audio_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &db1000_ac97;
 	card->dev = &pdev->dev;
diff --git a/sound/soc/au1x/db1200.c b/sound/soc/au1x/db1200.c
index 2d7f9b8..f319419 100644
--- a/sound/soc/au1x/db1200.c
+++ b/sound/soc/au1x/db1200.c
@@ -176,7 +176,7 @@ static struct snd_soc_card *db1200_cards[] __devinitdata = {
 	&db1550_i2s_machine,
 };
 
-static int __devinit db1200_audio_probe(struct platform_device *pdev)
+static int db1200_audio_probe(struct platform_device *pdev)
 {
 	const struct platform_device_id *pid = platform_get_device_id(pdev);
 	struct snd_soc_card *card;
diff --git a/sound/soc/au1x/dbdma2.c b/sound/soc/au1x/dbdma2.c
index fe5bbf4..ec85c58 100644
--- a/sound/soc/au1x/dbdma2.c
+++ b/sound/soc/au1x/dbdma2.c
@@ -347,7 +347,7 @@ static struct snd_soc_platform_driver au1xpsc_soc_platform = {
 	.pcm_free	= au1xpsc_pcm_free_dma_buffers,
 };
 
-static int __devinit au1xpsc_pcm_drvprobe(struct platform_device *pdev)
+static int au1xpsc_pcm_drvprobe(struct platform_device *pdev)
 {
 	struct au1xpsc_audio_dmadata *dmadata;
 
diff --git a/sound/soc/au1x/dma.c b/sound/soc/au1x/dma.c
index 264e820..ccfbe5b 100644
--- a/sound/soc/au1x/dma.c
+++ b/sound/soc/au1x/dma.c
@@ -322,7 +322,7 @@ static struct snd_soc_platform_driver alchemy_pcm_soc_platform = {
 	.pcm_free	= alchemy_pcm_free_dma_buffers,
 };
 
-static int __devinit alchemy_pcm_drvprobe(struct platform_device *pdev)
+static int alchemy_pcm_drvprobe(struct platform_device *pdev)
 {
 	struct alchemy_pcm_ctx *ctx;
 
diff --git a/sound/soc/au1x/i2sc.c b/sound/soc/au1x/i2sc.c
index 329ec51..4737c85 100644
--- a/sound/soc/au1x/i2sc.c
+++ b/sound/soc/au1x/i2sc.c
@@ -225,7 +225,7 @@ static struct snd_soc_dai_driver au1xi2s_dai_driver = {
 	.ops = &au1xi2s_dai_ops,
 };
 
-static int __devinit au1xi2s_drvprobe(struct platform_device *pdev)
+static int au1xi2s_drvprobe(struct platform_device *pdev)
 {
 	struct resource *iores, *dmares;
 	struct au1xpsc_audio_data *ctx;
diff --git a/sound/soc/au1x/psc-ac97.c b/sound/soc/au1x/psc-ac97.c
index dab4b75..c541c92 100644
--- a/sound/soc/au1x/psc-ac97.c
+++ b/sound/soc/au1x/psc-ac97.c
@@ -361,7 +361,7 @@ static const struct snd_soc_dai_driver au1xpsc_ac97_dai_template = {
 	.ops = &au1xpsc_ac97_dai_ops,
 };
 
-static int __devinit au1xpsc_ac97_drvprobe(struct platform_device *pdev)
+static int au1xpsc_ac97_drvprobe(struct platform_device *pdev)
 {
 	int ret;
 	struct resource *iores, *dmares;
diff --git a/sound/soc/au1x/psc-i2s.c b/sound/soc/au1x/psc-i2s.c
index 73800b2..bed90cc 100644
--- a/sound/soc/au1x/psc-i2s.c
+++ b/sound/soc/au1x/psc-i2s.c
@@ -288,7 +288,7 @@ static const struct snd_soc_dai_driver au1xpsc_i2s_dai_template = {
 	.ops = &au1xpsc_i2s_dai_ops,
 };
 
-static int __devinit au1xpsc_i2s_drvprobe(struct platform_device *pdev)
+static int au1xpsc_i2s_drvprobe(struct platform_device *pdev)
 {
 	struct resource *iores, *dmares;
 	unsigned long sel;
diff --git a/sound/soc/blackfin/bf5xx-ac97-pcm.c b/sound/soc/blackfin/bf5xx-ac97-pcm.c
index cb29219..dce0f25 100644
--- a/sound/soc/blackfin/bf5xx-ac97-pcm.c
+++ b/sound/soc/blackfin/bf5xx-ac97-pcm.c
@@ -453,7 +453,7 @@ static struct snd_soc_platform_driver bf5xx_ac97_soc_platform = {
 	.pcm_free	= bf5xx_pcm_free_dma_buffers,
 };
 
-static int __devinit bf5xx_soc_platform_probe(struct platform_device *pdev)
+static int bf5xx_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &bf5xx_ac97_soc_platform);
 }
diff --git a/sound/soc/blackfin/bf5xx-ac97.c b/sound/soc/blackfin/bf5xx-ac97.c
index cce2e8d..6845373 100644
--- a/sound/soc/blackfin/bf5xx-ac97.c
+++ b/sound/soc/blackfin/bf5xx-ac97.c
@@ -282,7 +282,7 @@ static struct snd_soc_dai_driver bfin_ac97_dai = {
 		.formats = SNDRV_PCM_FMTBIT_S16_LE, },
 };
 
-static int __devinit asoc_bfin_ac97_probe(struct platform_device *pdev)
+static int asoc_bfin_ac97_probe(struct platform_device *pdev)
 {
 	struct sport_device *sport_handle;
 	int ret;
diff --git a/sound/soc/blackfin/bf5xx-ad1836.c b/sound/soc/blackfin/bf5xx-ad1836.c
index f34b99f..b87f5aa 100644
--- a/sound/soc/blackfin/bf5xx-ad1836.c
+++ b/sound/soc/blackfin/bf5xx-ad1836.c
@@ -75,7 +75,7 @@ static struct snd_soc_card bf5xx_ad1836 = {
 	.num_links = 1,
 };
 
-static __devinit int bf5xx_ad1836_driver_probe(struct platform_device *pdev)
+static int bf5xx_ad1836_driver_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &bf5xx_ad1836;
 	const char **link_name;
diff --git a/sound/soc/blackfin/bf5xx-i2s-pcm.c b/sound/soc/blackfin/bf5xx-i2s-pcm.c
index a0fbb1e..b3a5cbe 100644
--- a/sound/soc/blackfin/bf5xx-i2s-pcm.c
+++ b/sound/soc/blackfin/bf5xx-i2s-pcm.c
@@ -292,7 +292,7 @@ static struct snd_soc_platform_driver bf5xx_i2s_soc_platform = {
 	.pcm_free	= bf5xx_pcm_free_dma_buffers,
 };
 
-static int __devinit bfin_i2s_soc_platform_probe(struct platform_device *pdev)
+static int bfin_i2s_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &bf5xx_i2s_soc_platform);
 }
diff --git a/sound/soc/blackfin/bf5xx-i2s.c b/sound/soc/blackfin/bf5xx-i2s.c
index 990b6d1..f07e3ae 100644
--- a/sound/soc/blackfin/bf5xx-i2s.c
+++ b/sound/soc/blackfin/bf5xx-i2s.c
@@ -245,7 +245,7 @@ static struct snd_soc_dai_driver bf5xx_i2s_dai = {
 	.ops = &bf5xx_i2s_dai_ops,
 };
 
-static int __devinit bf5xx_i2s_probe(struct platform_device *pdev)
+static int bf5xx_i2s_probe(struct platform_device *pdev)
 {
 	struct sport_device *sport_handle;
 	int ret;
diff --git a/sound/soc/blackfin/bf5xx-tdm-pcm.c b/sound/soc/blackfin/bf5xx-tdm-pcm.c
index 9740e0f..23a4dec 100644
--- a/sound/soc/blackfin/bf5xx-tdm-pcm.c
+++ b/sound/soc/blackfin/bf5xx-tdm-pcm.c
@@ -317,7 +317,7 @@ static struct snd_soc_platform_driver bf5xx_tdm_soc_platform = {
 	.pcm_free       = bf5xx_pcm_free_dma_buffers,
 };
 
-static int __devinit bf5xx_soc_platform_probe(struct platform_device *pdev)
+static int bf5xx_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &bf5xx_tdm_soc_platform);
 }
diff --git a/sound/soc/blackfin/bf5xx-tdm.c b/sound/soc/blackfin/bf5xx-tdm.c
index a4fe59c..806f8f0 100644
--- a/sound/soc/blackfin/bf5xx-tdm.c
+++ b/sound/soc/blackfin/bf5xx-tdm.c
@@ -249,7 +249,7 @@ static struct snd_soc_dai_driver bf5xx_tdm_dai = {
 	.ops = &bf5xx_tdm_dai_ops,
 };
 
-static int __devinit bfin_tdm_probe(struct platform_device *pdev)
+static int bfin_tdm_probe(struct platform_device *pdev)
 {
 	struct sport_device *sport_handle;
 	int ret;
diff --git a/sound/soc/blackfin/bf6xx-i2s.c b/sound/soc/blackfin/bf6xx-i2s.c
index 0021bd6..a87b7b2 100644
--- a/sound/soc/blackfin/bf6xx-i2s.c
+++ b/sound/soc/blackfin/bf6xx-i2s.c
@@ -186,7 +186,7 @@ static struct snd_soc_dai_driver bfin_i2s_dai = {
 	.ops = &bfin_i2s_dai_ops,
 };
 
-static int __devinit bfin_i2s_probe(struct platform_device *pdev)
+static int bfin_i2s_probe(struct platform_device *pdev)
 {
 	struct sport_device *sport;
 	struct device *dev = &pdev->dev;
diff --git a/sound/soc/cirrus/edb93xx.c b/sound/soc/cirrus/edb93xx.c
index b610600..0e766a5 100644
--- a/sound/soc/cirrus/edb93xx.c
+++ b/sound/soc/cirrus/edb93xx.c
@@ -80,7 +80,7 @@ static struct snd_soc_card snd_soc_edb93xx = {
 	.num_links	= 1,
 };
 
-static int __devinit edb93xx_probe(struct platform_device *pdev)
+static int edb93xx_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &snd_soc_edb93xx;
 	int ret;
diff --git a/sound/soc/cirrus/ep93xx-ac97.c b/sound/soc/cirrus/ep93xx-ac97.c
index 2c15880..e70f53f 100644
--- a/sound/soc/cirrus/ep93xx-ac97.c
+++ b/sound/soc/cirrus/ep93xx-ac97.c
@@ -352,7 +352,7 @@ static struct snd_soc_dai_driver ep93xx_ac97_dai = {
 	.ops			= &ep93xx_ac97_dai_ops,
 };
 
-static int __devinit ep93xx_ac97_probe(struct platform_device *pdev)
+static int ep93xx_ac97_probe(struct platform_device *pdev)
 {
 	struct ep93xx_ac97_info *info;
 	struct resource *res;
diff --git a/sound/soc/cirrus/ep93xx-pcm.c b/sound/soc/cirrus/ep93xx-pcm.c
index 4274ba2..b294fb1 100644
--- a/sound/soc/cirrus/ep93xx-pcm.c
+++ b/sound/soc/cirrus/ep93xx-pcm.c
@@ -213,7 +213,7 @@ static struct snd_soc_platform_driver ep93xx_soc_platform = {
 	.pcm_free	= &ep93xx_pcm_free_dma_buffers,
 };
 
-static int __devinit ep93xx_soc_platform_probe(struct platform_device *pdev)
+static int ep93xx_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &ep93xx_soc_platform);
 }
diff --git a/sound/soc/cirrus/simone.c b/sound/soc/cirrus/simone.c
index 04f59a9..1c8d9aa 100644
--- a/sound/soc/cirrus/simone.c
+++ b/sound/soc/cirrus/simone.c
@@ -41,7 +41,7 @@ static struct snd_soc_card snd_soc_simone = {
 
 static struct platform_device *simone_snd_ac97_device;
 
-static int __devinit simone_probe(struct platform_device *pdev)
+static int simone_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &snd_soc_simone;
 	int ret;
diff --git a/sound/soc/cirrus/snappercl15.c b/sound/soc/cirrus/snappercl15.c
index a98bec1..7f8dcd2 100644
--- a/sound/soc/cirrus/snappercl15.c
+++ b/sound/soc/cirrus/snappercl15.c
@@ -98,7 +98,7 @@ static struct snd_soc_card snd_soc_snappercl15 = {
 	.num_links	= 1,
 };
 
-static int __devinit snappercl15_probe(struct platform_device *pdev)
+static int snappercl15_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &snd_soc_snappercl15;
 	int ret;
diff --git a/sound/soc/codecs/88pm860x-codec.c b/sound/soc/codecs/88pm860x-codec.c
index 6e9d31b..0631036 100644
--- a/sound/soc/codecs/88pm860x-codec.c
+++ b/sound/soc/codecs/88pm860x-codec.c
@@ -1423,7 +1423,7 @@ static struct snd_soc_codec_driver soc_codec_dev_pm860x = {
 	.num_dapm_routes = ARRAY_SIZE(pm860x_dapm_routes),
 };
 
-static int __devinit pm860x_codec_probe(struct platform_device *pdev)
+static int pm860x_codec_probe(struct platform_device *pdev)
 {
 	struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
 	struct pm860x_priv *pm860x;
diff --git a/sound/soc/codecs/ab8500-codec.c b/sound/soc/codecs/ab8500-codec.c
index bf9db7f..300ea60 100644
--- a/sound/soc/codecs/ab8500-codec.c
+++ b/sound/soc/codecs/ab8500-codec.c
@@ -2554,7 +2554,7 @@ static struct snd_soc_codec_driver ab8500_codec_driver = {
 	.num_dapm_routes =	ARRAY_SIZE(ab8500_dapm_routes),
 };
 
-static int __devinit ab8500_codec_driver_probe(struct platform_device *pdev)
+static int ab8500_codec_driver_probe(struct platform_device *pdev)
 {
 	int status;
 	struct ab8500_codec_drvdata *drvdata;
diff --git a/sound/soc/codecs/ac97.c b/sound/soc/codecs/ac97.c
index 0ae093b..5c0837b 100644
--- a/sound/soc/codecs/ac97.c
+++ b/sound/soc/codecs/ac97.c
@@ -118,7 +118,7 @@ static struct snd_soc_codec_driver soc_codec_dev_ac97 = {
 	.resume =	ac97_soc_resume,
 };
 
-static __devinit int ac97_probe(struct platform_device *pdev)
+static int ac97_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_ac97, &ac97_dai, 1);
diff --git a/sound/soc/codecs/ad1836.c b/sound/soc/codecs/ad1836.c
index 1613241..384ae12 100644
--- a/sound/soc/codecs/ad1836.c
+++ b/sound/soc/codecs/ad1836.c
@@ -360,7 +360,7 @@ static const struct regmap_config ad1836_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static int __devinit ad1836_spi_probe(struct spi_device *spi)
+static int ad1836_spi_probe(struct spi_device *spi)
 {
 	struct ad1836_priv *ad1836;
 	int ret;
diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c
index 9537b66..209b7b5 100644
--- a/sound/soc/codecs/ad193x.c
+++ b/sound/soc/codecs/ad193x.c
@@ -378,7 +378,7 @@ static const struct regmap_config ad193x_spi_regmap_config = {
 	.volatile_reg = adau193x_reg_volatile,
 };
 
-static int __devinit ad193x_spi_probe(struct spi_device *spi)
+static int ad193x_spi_probe(struct spi_device *spi)
 {
 	struct ad193x_priv *ad193x;
 
@@ -430,7 +430,7 @@ static const struct i2c_device_id ad193x_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, ad193x_id);
 
-static int __devinit ad193x_i2c_probe(struct i2c_client *client,
+static int ad193x_i2c_probe(struct i2c_client *client,
 		const struct i2c_device_id *id)
 {
 	struct ad193x_priv *ad193x;
diff --git a/sound/soc/codecs/ad1980.c b/sound/soc/codecs/ad1980.c
index b095553..db6657f 100644
--- a/sound/soc/codecs/ad1980.c
+++ b/sound/soc/codecs/ad1980.c
@@ -255,7 +255,7 @@ static struct snd_soc_codec_driver soc_codec_dev_ad1980 = {
 	.read = ac97_read,
 };
 
-static __devinit int ad1980_probe(struct platform_device *pdev)
+static int ad1980_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_ad1980, &ad1980_dai, 1);
diff --git a/sound/soc/codecs/adau1373.c b/sound/soc/codecs/adau1373.c
index 7f62721..e20e267 100644
--- a/sound/soc/codecs/adau1373.c
+++ b/sound/soc/codecs/adau1373.c
@@ -1353,7 +1353,7 @@ static struct snd_soc_codec_driver adau1373_codec_driver = {
 	.num_dapm_routes = ARRAY_SIZE(adau1373_dapm_routes),
 };
 
-static int __devinit adau1373_i2c_probe(struct i2c_client *client,
+static int adau1373_i2c_probe(struct i2c_client *client,
 	const struct i2c_device_id *id)
 {
 	struct adau1373 *adau1373;
diff --git a/sound/soc/codecs/adau1701.c b/sound/soc/codecs/adau1701.c
index f02b1c83..bd7d58f 100644
--- a/sound/soc/codecs/adau1701.c
+++ b/sound/soc/codecs/adau1701.c
@@ -489,7 +489,7 @@ static struct snd_soc_codec_driver adau1701_codec_drv = {
 	.set_sysclk		= adau1701_set_sysclk,
 };
 
-static __devinit int adau1701_i2c_probe(struct i2c_client *client,
+static int adau1701_i2c_probe(struct i2c_client *client,
 		const struct i2c_device_id *id)
 {
 	struct adau1701 *adau1701;
diff --git a/sound/soc/codecs/adav80x.c b/sound/soc/codecs/adav80x.c
index cd5d0f6..cb960fd 100644
--- a/sound/soc/codecs/adav80x.c
+++ b/sound/soc/codecs/adav80x.c
@@ -839,7 +839,7 @@ static struct snd_soc_codec_driver adav80x_codec_driver = {
 	.num_dapm_routes = ARRAY_SIZE(adav80x_dapm_routes),
 };
 
-static int __devinit adav80x_bus_probe(struct device *dev,
+static int adav80x_bus_probe(struct device *dev,
 		enum snd_soc_control_type control_type)
 {
 	struct adav80x *adav80x;
@@ -868,7 +868,7 @@ static int __devexit adav80x_bus_remove(struct device *dev)
 }
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit adav80x_spi_probe(struct spi_device *spi)
+static int adav80x_spi_probe(struct spi_device *spi)
 {
 	return adav80x_bus_probe(&spi->dev, SND_SOC_SPI);
 }
@@ -895,7 +895,7 @@ static const struct i2c_device_id adav80x_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, adav80x_id);
 
-static int __devinit adav80x_i2c_probe(struct i2c_client *client,
+static int adav80x_i2c_probe(struct i2c_client *client,
 		const struct i2c_device_id *id)
 {
 	return adav80x_bus_probe(&client->dev, SND_SOC_I2C);
diff --git a/sound/soc/codecs/ads117x.c b/sound/soc/codecs/ads117x.c
index 93aae10..a152f5a 100644
--- a/sound/soc/codecs/ads117x.c
+++ b/sound/soc/codecs/ads117x.c
@@ -36,7 +36,7 @@ static struct snd_soc_dai_driver ads117x_dai = {
 
 static struct snd_soc_codec_driver soc_codec_dev_ads117x;
 
-static __devinit int ads117x_probe(struct platform_device *pdev)
+static int ads117x_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_ads117x, &ads117x_dai, 1);
diff --git a/sound/soc/codecs/ak4535.c b/sound/soc/codecs/ak4535.c
index 66b3669..77e285c 100644
--- a/sound/soc/codecs/ak4535.c
+++ b/sound/soc/codecs/ak4535.c
@@ -436,7 +436,7 @@ static struct snd_soc_codec_driver soc_codec_dev_ak4535 = {
 	.num_dapm_routes = ARRAY_SIZE(ak4535_audio_map),
 };
 
-static __devinit int ak4535_i2c_probe(struct i2c_client *i2c,
+static int ak4535_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct ak4535_priv *ak4535;
diff --git a/sound/soc/codecs/ak4641.c b/sound/soc/codecs/ak4641.c
index 8c8ef10..09da215 100644
--- a/sound/soc/codecs/ak4641.c
+++ b/sound/soc/codecs/ak4641.c
@@ -557,7 +557,7 @@ static struct snd_soc_codec_driver soc_codec_dev_ak4641 = {
 };
 
 
-static int __devinit ak4641_i2c_probe(struct i2c_client *i2c,
+static int ak4641_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct ak4641_platform_data *pdata = i2c->dev.platform_data;
diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c
index e2c3222..aba3813 100644
--- a/sound/soc/codecs/ak4642.c
+++ b/sound/soc/codecs/ak4642.c
@@ -520,7 +520,7 @@ static struct snd_soc_codec_driver soc_codec_dev_ak4648 = {
 };
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int ak4642_i2c_probe(struct i2c_client *i2c,
+static int ak4642_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct ak4642_priv *ak4642;
diff --git a/sound/soc/codecs/ak4671.c b/sound/soc/codecs/ak4671.c
index 2fc0a5d..93a76cb 100644
--- a/sound/soc/codecs/ak4671.c
+++ b/sound/soc/codecs/ak4671.c
@@ -655,7 +655,7 @@ static struct snd_soc_codec_driver soc_codec_dev_ak4671 = {
 	.num_dapm_routes = ARRAY_SIZE(ak4671_intercon),
 };
 
-static int __devinit ak4671_i2c_probe(struct i2c_client *client,
+static int ak4671_i2c_probe(struct i2c_client *client,
 		const struct i2c_device_id *id)
 {
 	struct ak4671_priv *ak4671;
diff --git a/sound/soc/codecs/alc5623.c b/sound/soc/codecs/alc5623.c
index cef214e..5a7ad19 100644
--- a/sound/soc/codecs/alc5623.c
+++ b/sound/soc/codecs/alc5623.c
@@ -991,7 +991,7 @@ static struct snd_soc_codec_driver soc_codec_device_alc5623 = {
  *    low  = 0x1a
  *    high = 0x1b
  */
-static __devinit int alc5623_i2c_probe(struct i2c_client *client,
+static int alc5623_i2c_probe(struct i2c_client *client,
 				const struct i2c_device_id *id)
 {
 	struct alc5623_platform_data *pdata;
diff --git a/sound/soc/codecs/alc5632.c b/sound/soc/codecs/alc5632.c
index 93fd94d..7026e3d 100644
--- a/sound/soc/codecs/alc5632.c
+++ b/sound/soc/codecs/alc5632.c
@@ -1116,7 +1116,7 @@ static struct regmap_config alc5632_regmap = {
  *    low  = 0x1a
  *    high = 0x1b
  */
-static __devinit int alc5632_i2c_probe(struct i2c_client *client,
+static int alc5632_i2c_probe(struct i2c_client *client,
 				const struct i2c_device_id *id)
 {
 	struct alc5632_priv *alc5632;
diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c
index 976b9bd..3d637b2 100644
--- a/sound/soc/codecs/cs4271.c
+++ b/sound/soc/codecs/cs4271.c
@@ -570,7 +570,7 @@ static struct snd_soc_codec_driver soc_codec_dev_cs4271 = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit cs4271_spi_probe(struct spi_device *spi)
+static int cs4271_spi_probe(struct spi_device *spi)
 {
 	struct cs4271_private *cs4271;
 
@@ -609,7 +609,7 @@ static const struct i2c_device_id cs4271_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, cs4271_i2c_id);
 
-static int __devinit cs4271_i2c_probe(struct i2c_client *client,
+static int cs4271_i2c_probe(struct i2c_client *client,
 				      const struct i2c_device_id *id)
 {
 	struct cs4271_private *cs4271;
diff --git a/sound/soc/codecs/cs42l73.c b/sound/soc/codecs/cs42l73.c
index f68bbc7..362c20b 100644
--- a/sound/soc/codecs/cs42l73.c
+++ b/sound/soc/codecs/cs42l73.c
@@ -1345,7 +1345,7 @@ static struct regmap_config cs42l73_regmap = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static __devinit int cs42l73_i2c_probe(struct i2c_client *i2c_client,
+static int cs42l73_i2c_probe(struct i2c_client *i2c_client,
 				       const struct i2c_device_id *id)
 {
 	struct cs42l73_private *cs42l73;
diff --git a/sound/soc/codecs/da7210.c b/sound/soc/codecs/da7210.c
index 7ab571d..0c3b09c 100644
--- a/sound/soc/codecs/da7210.c
+++ b/sound/soc/codecs/da7210.c
@@ -1218,7 +1218,7 @@ static const struct regmap_config da7210_regmap_config_i2c = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static int __devinit da7210_i2c_probe(struct i2c_client *i2c,
+static int da7210_i2c_probe(struct i2c_client *i2c,
 			   	      const struct i2c_device_id *id)
 {
 	struct da7210_priv *da7210;
@@ -1323,7 +1323,7 @@ static const struct regmap_config da7210_regmap_config_spi = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static int __devinit da7210_spi_probe(struct spi_device *spi)
+static int da7210_spi_probe(struct spi_device *spi)
 {
 	struct da7210_priv *da7210;
 	int ret;
diff --git a/sound/soc/codecs/da732x.c b/sound/soc/codecs/da732x.c
index c6f1ef9..850bfed 100644
--- a/sound/soc/codecs/da732x.c
+++ b/sound/soc/codecs/da732x.c
@@ -1557,7 +1557,7 @@ static struct snd_soc_codec_driver soc_codec_dev_da732x = {
 	.reg_cache_size		= ARRAY_SIZE(da732x_reg_cache),
 };
 
-static __devinit int da732x_i2c_probe(struct i2c_client *i2c,
+static int da732x_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct da732x_priv *da732x;
diff --git a/sound/soc/codecs/da9055.c b/sound/soc/codecs/da9055.c
index 468ad60..cf8dfeb 100644
--- a/sound/soc/codecs/da9055.c
+++ b/sound/soc/codecs/da9055.c
@@ -1484,7 +1484,7 @@ static const struct regmap_config da9055_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static int __devinit da9055_i2c_probe(struct i2c_client *i2c,
+static int da9055_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct da9055_priv *da9055;
diff --git a/sound/soc/codecs/dfbmcs320.c b/sound/soc/codecs/dfbmcs320.c
index af7e38d..61ccf30 100644
--- a/sound/soc/codecs/dfbmcs320.c
+++ b/sound/soc/codecs/dfbmcs320.c
@@ -33,7 +33,7 @@ static struct snd_soc_dai_driver dfbmcs320_dai = {
 
 static struct snd_soc_codec_driver soc_codec_dev_dfbmcs320;
 
-static int __devinit dfbmcs320_probe(struct platform_device *pdev)
+static int dfbmcs320_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_dfbmcs320,
 			&dfbmcs320_dai, 1);
diff --git a/sound/soc/codecs/dmic.c b/sound/soc/codecs/dmic.c
index 95b39ac..0dc7fab 100644
--- a/sound/soc/codecs/dmic.c
+++ b/sound/soc/codecs/dmic.c
@@ -66,7 +66,7 @@ static struct snd_soc_codec_driver soc_dmic = {
 	.probe	= dmic_probe,
 };
 
-static int __devinit dmic_dev_probe(struct platform_device *pdev)
+static int dmic_dev_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_dmic, &dmic_dai, 1);
diff --git a/sound/soc/codecs/isabelle.c b/sound/soc/codecs/isabelle.c
index 25e57ea..8853a83 100644
--- a/sound/soc/codecs/isabelle.c
+++ b/sound/soc/codecs/isabelle.c
@@ -1119,7 +1119,7 @@ static const struct regmap_config isabelle_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static int __devinit isabelle_i2c_probe(struct i2c_client *i2c,
+static int isabelle_i2c_probe(struct i2c_client *i2c,
 					const struct i2c_device_id *id)
 {
 	struct regmap *isabelle_regmap;
diff --git a/sound/soc/codecs/jz4740.c b/sound/soc/codecs/jz4740.c
index d295dcf..3606f26 100644
--- a/sound/soc/codecs/jz4740.c
+++ b/sound/soc/codecs/jz4740.c
@@ -348,7 +348,7 @@ static const struct regmap_config jz4740_codec_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static int __devinit jz4740_codec_probe(struct platform_device *pdev)
+static int jz4740_codec_probe(struct platform_device *pdev)
 {
 	int ret;
 	struct jz4740_codec *jz4740_codec;
diff --git a/sound/soc/codecs/lm4857.c b/sound/soc/codecs/lm4857.c
index b0db011..27e7991 100644
--- a/sound/soc/codecs/lm4857.c
+++ b/sound/soc/codecs/lm4857.c
@@ -209,7 +209,7 @@ static struct snd_soc_codec_driver soc_codec_dev_lm4857 = {
 	.set_bias_level = lm4857_set_bias_level,
 };
 
-static int __devinit lm4857_i2c_probe(struct i2c_client *i2c,
+static int lm4857_i2c_probe(struct i2c_client *i2c,
 	const struct i2c_device_id *id)
 {
 	struct lm4857 *lm4857;
diff --git a/sound/soc/codecs/lm49453.c b/sound/soc/codecs/lm49453.c
index af16b4a..568e499 100644
--- a/sound/soc/codecs/lm49453.c
+++ b/sound/soc/codecs/lm49453.c
@@ -1483,7 +1483,7 @@ static const struct regmap_config lm49453_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static __devinit int lm49453_i2c_probe(struct i2c_client *i2c,
+static int lm49453_i2c_probe(struct i2c_client *i2c,
 				       const struct i2c_device_id *id)
 {
 	struct lm49453_priv *lm49453;
diff --git a/sound/soc/codecs/max9768.c b/sound/soc/codecs/max9768.c
index 367d886..4ece6ab 100644
--- a/sound/soc/codecs/max9768.c
+++ b/sound/soc/codecs/max9768.c
@@ -159,7 +159,7 @@ static const struct regmap_config max9768_i2c_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static int __devinit max9768_i2c_probe(struct i2c_client *client,
+static int max9768_i2c_probe(struct i2c_client *client,
 	const struct i2c_device_id *id)
 {
 	struct max9768 *max9768;
diff --git a/sound/soc/codecs/max9850.c b/sound/soc/codecs/max9850.c
index adf2317..261b62f 100644
--- a/sound/soc/codecs/max9850.c
+++ b/sound/soc/codecs/max9850.c
@@ -329,7 +329,7 @@ static struct snd_soc_codec_driver soc_codec_dev_max9850 = {
 	.num_dapm_routes = ARRAY_SIZE(max9850_dapm_routes),
 };
 
-static int __devinit max9850_i2c_probe(struct i2c_client *i2c,
+static int max9850_i2c_probe(struct i2c_client *i2c,
 		const struct i2c_device_id *id)
 {
 	struct max9850_priv *max9850;
diff --git a/sound/soc/codecs/max9877.c b/sound/soc/codecs/max9877.c
index bc15f5a..5243340 100644
--- a/sound/soc/codecs/max9877.c
+++ b/sound/soc/codecs/max9877.c
@@ -258,7 +258,7 @@ int max9877_add_controls(struct snd_soc_codec *codec)
 }
 EXPORT_SYMBOL_GPL(max9877_add_controls);
 
-static int __devinit max9877_i2c_probe(struct i2c_client *client,
+static int max9877_i2c_probe(struct i2c_client *client,
 		const struct i2c_device_id *id)
 {
 	i2c = client;
diff --git a/sound/soc/codecs/ml26124.c b/sound/soc/codecs/ml26124.c
index 7b15fe8..d3d6b26 100644
--- a/sound/soc/codecs/ml26124.c
+++ b/sound/soc/codecs/ml26124.c
@@ -626,7 +626,7 @@ static const struct regmap_config ml26124_i2c_regmap = {
 	.write_flag_mask = 0x01,
 };
 
-static __devinit int ml26124_i2c_probe(struct i2c_client *i2c,
+static int ml26124_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct ml26124_priv *priv;
diff --git a/sound/soc/codecs/omap-hdmi.c b/sound/soc/codecs/omap-hdmi.c
index 1437766..8ddc3d56 100644
--- a/sound/soc/codecs/omap-hdmi.c
+++ b/sound/soc/codecs/omap-hdmi.c
@@ -39,7 +39,7 @@ static struct snd_soc_dai_driver omap_hdmi_codec_dai = {
 	},
 };
 
-static __devinit int omap_hdmi_codec_probe(struct platform_device *pdev)
+static int omap_hdmi_codec_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev, &omap_hdmi_codec,
 			&omap_hdmi_codec_dai, 1);
diff --git a/sound/soc/codecs/pcm3008.c b/sound/soc/codecs/pcm3008.c
index bb48aa6..74561f3 100644
--- a/sound/soc/codecs/pcm3008.c
+++ b/sound/soc/codecs/pcm3008.c
@@ -149,7 +149,7 @@ static struct snd_soc_codec_driver soc_codec_dev_pcm3008 = {
 	.resume =	pcm3008_soc_resume,
 };
 
-static int __devinit pcm3008_codec_probe(struct platform_device *pdev)
+static int pcm3008_codec_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_pcm3008, &pcm3008_dai, 1);
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index 66e6e43..40d4fc1 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -1404,7 +1404,7 @@ static struct snd_soc_codec_driver sgtl5000_driver = {
 	.num_dapm_routes = ARRAY_SIZE(sgtl5000_dapm_routes),
 };
 
-static __devinit int sgtl5000_i2c_probe(struct i2c_client *client,
+static int sgtl5000_i2c_probe(struct i2c_client *client,
 					const struct i2c_device_id *id)
 {
 	struct sgtl5000_priv *sgtl5000;
diff --git a/sound/soc/codecs/si476x.c b/sound/soc/codecs/si476x.c
index 13fff24..8c46732 100644
--- a/sound/soc/codecs/si476x.c
+++ b/sound/soc/codecs/si476x.c
@@ -226,7 +226,7 @@ static struct snd_soc_codec_driver soc_codec_dev_si476x = {
 	.write  = si476x_codec_write,
 };
 
-static int __devinit si476x_platform_probe(struct platform_device *pdev)
+static int si476x_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_si476x,
 				      &si476x_dai, 1);
diff --git a/sound/soc/codecs/sn95031.c b/sound/soc/codecs/sn95031.c
index 97bad86..98529c5 100644
--- a/sound/soc/codecs/sn95031.c
+++ b/sound/soc/codecs/sn95031.c
@@ -896,7 +896,7 @@ struct snd_soc_codec_driver sn95031_codec = {
 	.num_dapm_routes	= ARRAY_SIZE(sn95031_audio_map),
 };
 
-static int __devinit sn95031_device_probe(struct platform_device *pdev)
+static int sn95031_device_probe(struct platform_device *pdev)
 {
 	pr_debug("codec device probe called for %s\n", dev_name(&pdev->dev));
 	return snd_soc_register_codec(&pdev->dev, &sn95031_codec,
diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c
index c290fe10..6fa63cc 100644
--- a/sound/soc/codecs/ssm2602.c
+++ b/sound/soc/codecs/ssm2602.c
@@ -691,7 +691,7 @@ static const struct regmap_config ssm2602_regmap_config = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit ssm2602_spi_probe(struct spi_device *spi)
+static int ssm2602_spi_probe(struct spi_device *spi)
 {
 	struct ssm2602_priv *ssm2602;
 	int ret;
@@ -736,7 +736,7 @@ static struct spi_driver ssm2602_spi_driver = {
  *    low  = 0x1a
  *    high = 0x1b
  */
-static int __devinit ssm2602_i2c_probe(struct i2c_client *i2c,
+static int ssm2602_i2c_probe(struct i2c_client *i2c,
 			     const struct i2c_device_id *id)
 {
 	struct ssm2602_priv *ssm2602;
diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c
index 2b10e20..2309f5a 100644
--- a/sound/soc/codecs/sta32x.c
+++ b/sound/soc/codecs/sta32x.c
@@ -995,7 +995,7 @@ static const struct regmap_config sta32x_regmap = {
 	.volatile_reg =		sta32x_reg_is_volatile,
 };
 
-static __devinit int sta32x_i2c_probe(struct i2c_client *i2c,
+static int sta32x_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct sta32x_priv *sta32x;
diff --git a/sound/soc/codecs/sta529.c b/sound/soc/codecs/sta529.c
index 34a73b8..570a09e 100644
--- a/sound/soc/codecs/sta529.c
+++ b/sound/soc/codecs/sta529.c
@@ -380,7 +380,7 @@ static const struct regmap_config sta529_regmap = {
 	.num_reg_defaults = ARRAY_SIZE(sta529_reg_defaults),
 };
 
-static __devinit int sta529_i2c_probe(struct i2c_client *i2c,
+static int sta529_i2c_probe(struct i2c_client *i2c,
 		const struct i2c_device_id *id)
 {
 	struct sta529 *sta529;
diff --git a/sound/soc/codecs/stac9766.c b/sound/soc/codecs/stac9766.c
index 29a8b391..20ad890 100644
--- a/sound/soc/codecs/stac9766.c
+++ b/sound/soc/codecs/stac9766.c
@@ -385,7 +385,7 @@ static struct snd_soc_codec_driver soc_codec_dev_stac9766 = {
 	.reg_cache_default = stac9766_reg,
 };
 
-static __devinit int stac9766_probe(struct platform_device *pdev)
+static int stac9766_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
diff --git a/sound/soc/codecs/tlv320aic32x4.c b/sound/soc/codecs/tlv320aic32x4.c
index 4cc54d5..1d45339 100644
--- a/sound/soc/codecs/tlv320aic32x4.c
+++ b/sound/soc/codecs/tlv320aic32x4.c
@@ -716,7 +716,7 @@ static struct snd_soc_codec_driver soc_codec_dev_aic32x4 = {
 	.set_bias_level = aic32x4_set_bias_level,
 };
 
-static __devinit int aic32x4_i2c_probe(struct i2c_client *i2c,
+static int aic32x4_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct aic32x4_pdata *pdata = i2c->dev.platform_data;
diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c
index c1e3804..8af052b 100644
--- a/sound/soc/codecs/tlv320dac33.c
+++ b/sound/soc/codecs/tlv320dac33.c
@@ -1514,7 +1514,7 @@ static struct snd_soc_dai_driver dac33_dai = {
 	.ops = &dac33_dai_ops,
 };
 
-static int __devinit dac33_i2c_probe(struct i2c_client *client,
+static int dac33_i2c_probe(struct i2c_client *client,
 				     const struct i2c_device_id *id)
 {
 	struct tlv320dac33_platform_data *pdata;
diff --git a/sound/soc/codecs/tpa6130a2.c b/sound/soc/codecs/tpa6130a2.c
index aea6262..f1c0399 100644
--- a/sound/soc/codecs/tpa6130a2.c
+++ b/sound/soc/codecs/tpa6130a2.c
@@ -359,7 +359,7 @@ int tpa6130a2_add_controls(struct snd_soc_codec *codec)
 }
 EXPORT_SYMBOL_GPL(tpa6130a2_add_controls);
 
-static int __devinit tpa6130a2_probe(struct i2c_client *client,
+static int tpa6130a2_probe(struct i2c_client *client,
 				     const struct i2c_device_id *id)
 {
 	struct device *dev;
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index d7e4e1b..c53c7fa 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -2334,7 +2334,7 @@ static struct snd_soc_codec_driver soc_codec_dev_twl4030 = {
 	.num_dapm_routes = ARRAY_SIZE(intercon),
 };
 
-static int __devinit twl4030_codec_probe(struct platform_device *pdev)
+static int twl4030_codec_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl4030,
 			twl4030_dai, ARRAY_SIZE(twl4030_dai));
diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c
index 37f060e..e3256ba 100644
--- a/sound/soc/codecs/twl6040.c
+++ b/sound/soc/codecs/twl6040.c
@@ -1229,7 +1229,7 @@ static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
 	.num_dapm_routes = ARRAY_SIZE(intercon),
 };
 
-static int __devinit twl6040_codec_probe(struct platform_device *pdev)
+static int twl6040_codec_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl6040,
 				      twl6040_dai, ARRAY_SIZE(twl6040_dai));
diff --git a/sound/soc/codecs/uda134x.c b/sound/soc/codecs/uda134x.c
index 9c60366..6c5a395 100644
--- a/sound/soc/codecs/uda134x.c
+++ b/sound/soc/codecs/uda134x.c
@@ -601,7 +601,7 @@ static struct snd_soc_codec_driver soc_codec_dev_uda134x = {
 	.set_bias_level = uda134x_set_bias_level,
 };
 
-static int __devinit uda134x_codec_probe(struct platform_device *pdev)
+static int uda134x_codec_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_uda134x, &uda134x_dai, 1);
diff --git a/sound/soc/codecs/uda1380.c b/sound/soc/codecs/uda1380.c
index 2f6c391..289dfe1 100644
--- a/sound/soc/codecs/uda1380.c
+++ b/sound/soc/codecs/uda1380.c
@@ -795,7 +795,7 @@ static struct snd_soc_codec_driver soc_codec_dev_uda1380 = {
 };
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int uda1380_i2c_probe(struct i2c_client *i2c,
+static int uda1380_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct uda1380_priv *uda1380;
diff --git a/sound/soc/codecs/wl1273.c b/sound/soc/codecs/wl1273.c
index 1823a45..2ae0302 100644
--- a/sound/soc/codecs/wl1273.c
+++ b/sound/soc/codecs/wl1273.c
@@ -485,7 +485,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wl1273 = {
 	.remove = wl1273_remove,
 };
 
-static int __devinit wl1273_platform_probe(struct platform_device *pdev)
+static int wl1273_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_wl1273,
 				      &wl1273_dai, 1);
diff --git a/sound/soc/codecs/wm0010.c b/sound/soc/codecs/wm0010.c
index 5af91d6..c449178 100644
--- a/sound/soc/codecs/wm0010.c
+++ b/sound/soc/codecs/wm0010.c
@@ -863,7 +863,7 @@ static int wm0010_probe(struct snd_soc_codec *codec)
 	return 0;
 }
 
-static int __devinit wm0010_spi_probe(struct spi_device *spi)
+static int wm0010_spi_probe(struct spi_device *spi)
 {
 	unsigned long gpio_flags;
 	int ret;
diff --git a/sound/soc/codecs/wm1250-ev1.c b/sound/soc/codecs/wm1250-ev1.c
index 169fac1..18e58bd 100644
--- a/sound/soc/codecs/wm1250-ev1.c
+++ b/sound/soc/codecs/wm1250-ev1.c
@@ -153,7 +153,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm1250_ev1 = {
 	.idle_bias_off = true,
 };
 
-static int __devinit wm1250_ev1_pdata(struct i2c_client *i2c)
+static int wm1250_ev1_pdata(struct i2c_client *i2c)
 {
 	struct wm1250_ev1_pdata *pdata = dev_get_platdata(&i2c->dev);
 	struct wm1250_priv *wm1250;
@@ -199,7 +199,7 @@ static void wm1250_ev1_free(struct i2c_client *i2c)
 		gpio_free_array(wm1250->gpios, ARRAY_SIZE(wm1250->gpios));
 }
 
-static int __devinit wm1250_ev1_probe(struct i2c_client *i2c,
+static int wm1250_ev1_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *i2c_id)
 {
 	int id, board, rev, ret;
diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index da4e707..9956b74 100644
--- a/sound/soc/codecs/wm2000.c
+++ b/sound/soc/codecs/wm2000.c
@@ -764,7 +764,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm2000 = {
 	.num_controls = ARRAY_SIZE(wm2000_controls),
 };
 
-static int __devinit wm2000_i2c_probe(struct i2c_client *i2c,
+static int wm2000_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *i2c_id)
 {
 	struct wm2000_priv *wm2000;
diff --git a/sound/soc/codecs/wm2200.c b/sound/soc/codecs/wm2200.c
index 11cabda..b6428c6 100644
--- a/sound/soc/codecs/wm2200.c
+++ b/sound/soc/codecs/wm2200.c
@@ -2184,7 +2184,7 @@ static const unsigned int wm2200_mic_ctrl_reg[] = {
 	WM2200_IN3L_CONTROL,
 };
 
-static __devinit int wm2200_i2c_probe(struct i2c_client *i2c,
+static int wm2200_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm2200_pdata *pdata = dev_get_platdata(&i2c->dev);
diff --git a/sound/soc/codecs/wm5100.c b/sound/soc/codecs/wm5100.c
index 96069ec..ee4e4b2 100644
--- a/sound/soc/codecs/wm5100.c
+++ b/sound/soc/codecs/wm5100.c
@@ -2414,7 +2414,7 @@ static const unsigned int wm5100_mic_ctrl_reg[] = {
 	WM5100_IN4L_CONTROL,
 };
 
-static __devinit int wm5100_i2c_probe(struct i2c_client *i2c,
+static int wm5100_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm5100_pdata *pdata = dev_get_platdata(&i2c->dev);
diff --git a/sound/soc/codecs/wm5102.c b/sound/soc/codecs/wm5102.c
index 4a57802..0210a08 100644
--- a/sound/soc/codecs/wm5102.c
+++ b/sound/soc/codecs/wm5102.c
@@ -1447,7 +1447,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm5102 = {
 	.num_dapm_routes = ARRAY_SIZE(wm5102_dapm_routes),
 };
 
-static int __devinit wm5102_probe(struct platform_device *pdev)
+static int wm5102_probe(struct platform_device *pdev)
 {
 	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
 	struct wm5102_priv *wm5102;
diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index 6f66b11..59f5d16 100644
--- a/sound/soc/codecs/wm5110.c
+++ b/sound/soc/codecs/wm5110.c
@@ -949,7 +949,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm5110 = {
 	.num_dapm_routes = ARRAY_SIZE(wm5110_dapm_routes),
 };
 
-static int __devinit wm5110_probe(struct platform_device *pdev)
+static int wm5110_probe(struct platform_device *pdev)
 {
 	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
 	struct wm5110_priv *wm5110;
diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c
index d0e35d3..24eaf4d 100644
--- a/sound/soc/codecs/wm8350.c
+++ b/sound/soc/codecs/wm8350.c
@@ -1627,7 +1627,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8350 = {
 	.num_dapm_routes = ARRAY_SIZE(wm8350_dapm_routes),
 };
 
-static int __devinit wm8350_probe(struct platform_device *pdev)
+static int wm8350_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_wm8350,
 			&wm8350_dai, 1);
diff --git a/sound/soc/codecs/wm8400.c b/sound/soc/codecs/wm8400.c
index a9a85f6..fde7b17 100644
--- a/sound/soc/codecs/wm8400.c
+++ b/sound/soc/codecs/wm8400.c
@@ -1439,7 +1439,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8400 = {
 	.num_dapm_routes = ARRAY_SIZE(wm8400_dapm_routes),
 };
 
-static int __devinit wm8400_probe(struct platform_device *pdev)
+static int wm8400_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_wm8400,
 			&wm8400_dai, 1);
diff --git a/sound/soc/codecs/wm8510.c b/sound/soc/codecs/wm8510.c
index 91816eb..28dbbdc 100644
--- a/sound/soc/codecs/wm8510.c
+++ b/sound/soc/codecs/wm8510.c
@@ -648,7 +648,7 @@ static const struct regmap_config wm8510_regmap = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8510_spi_probe(struct spi_device *spi)
+static int wm8510_spi_probe(struct spi_device *spi)
 {
 	struct wm8510_priv *wm8510;
 	int ret;
@@ -688,7 +688,7 @@ static struct spi_driver wm8510_spi_driver = {
 #endif /* CONFIG_SPI_MASTER */
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8510_i2c_probe(struct i2c_client *i2c,
+static int wm8510_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8510_priv *wm8510;
diff --git a/sound/soc/codecs/wm8523.c b/sound/soc/codecs/wm8523.c
index 6004c17..c05c55d 100644
--- a/sound/soc/codecs/wm8523.c
+++ b/sound/soc/codecs/wm8523.c
@@ -453,7 +453,7 @@ static const struct regmap_config wm8523_regmap = {
 };
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8523_i2c_probe(struct i2c_client *i2c,
+static int wm8523_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8523_priv *wm8523;
diff --git a/sound/soc/codecs/wm8711.c b/sound/soc/codecs/wm8711.c
index c97eb50..a366fdc 100644
--- a/sound/soc/codecs/wm8711.c
+++ b/sound/soc/codecs/wm8711.c
@@ -429,7 +429,7 @@ static const struct regmap_config wm8711_regmap = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8711_spi_probe(struct spi_device *spi)
+static int wm8711_spi_probe(struct spi_device *spi)
 {
 	struct wm8711_priv *wm8711;
 	int ret;
@@ -470,7 +470,7 @@ static struct spi_driver wm8711_spi_driver = {
 #endif /* CONFIG_SPI_MASTER */
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8711_i2c_probe(struct i2c_client *client,
+static int wm8711_i2c_probe(struct i2c_client *client,
 				      const struct i2c_device_id *id)
 {
 	struct wm8711_priv *wm8711;
diff --git a/sound/soc/codecs/wm8727.c b/sound/soc/codecs/wm8727.c
index a38c36b..3bc03f8 100644
--- a/sound/soc/codecs/wm8727.c
+++ b/sound/soc/codecs/wm8727.c
@@ -45,7 +45,7 @@ static struct snd_soc_dai_driver wm8727_dai = {
 
 static struct snd_soc_codec_driver soc_codec_dev_wm8727;
 
-static __devinit int wm8727_probe(struct platform_device *pdev)
+static int wm8727_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_wm8727, &wm8727_dai, 1);
diff --git a/sound/soc/codecs/wm8728.c b/sound/soc/codecs/wm8728.c
index 50aa6dd..245c2b4 100644
--- a/sound/soc/codecs/wm8728.c
+++ b/sound/soc/codecs/wm8728.c
@@ -280,7 +280,7 @@ static const struct regmap_config wm8728_regmap = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8728_spi_probe(struct spi_device *spi)
+static int wm8728_spi_probe(struct spi_device *spi)
 {
 	struct wm8728_priv *wm8728;
 	int ret;
@@ -321,7 +321,7 @@ static struct spi_driver wm8728_spi_driver = {
 #endif /* CONFIG_SPI_MASTER */
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8728_i2c_probe(struct i2c_client *i2c,
+static int wm8728_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8728_priv *wm8728;
diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index c277327..71617ad 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -631,7 +631,7 @@ static const struct regmap_config wm8731_regmap = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8731_spi_probe(struct spi_device *spi)
+static int wm8731_spi_probe(struct spi_device *spi)
 {
 	struct wm8731_priv *wm8731;
 	int ret;
@@ -679,7 +679,7 @@ static struct spi_driver wm8731_spi_driver = {
 #endif /* CONFIG_SPI_MASTER */
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8731_i2c_probe(struct i2c_client *i2c,
+static int wm8731_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8731_priv *wm8731;
diff --git a/sound/soc/codecs/wm8737.c b/sound/soc/codecs/wm8737.c
index 46caa41..9e1a100 100644
--- a/sound/soc/codecs/wm8737.c
+++ b/sound/soc/codecs/wm8737.c
@@ -645,7 +645,7 @@ static const struct regmap_config wm8737_regmap = {
 };
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8737_i2c_probe(struct i2c_client *i2c,
+static int wm8737_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8737_priv *wm8737;
@@ -705,7 +705,7 @@ static struct i2c_driver wm8737_i2c_driver = {
 #endif
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8737_spi_probe(struct spi_device *spi)
+static int wm8737_spi_probe(struct spi_device *spi)
 {
 	struct wm8737_priv *wm8737;
 	int ret, i;
diff --git a/sound/soc/codecs/wm8741.c b/sound/soc/codecs/wm8741.c
index 24c5576..019558c 100644
--- a/sound/soc/codecs/wm8741.c
+++ b/sound/soc/codecs/wm8741.c
@@ -562,7 +562,7 @@ static struct i2c_driver wm8741_i2c_driver = {
 #endif
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8741_spi_probe(struct spi_device *spi)
+static int wm8741_spi_probe(struct spi_device *spi)
 {
 	struct wm8741_priv *wm8741;
 	int ret, i;
diff --git a/sound/soc/codecs/wm8750.c b/sound/soc/codecs/wm8750.c
index b45575e..28256c4 100644
--- a/sound/soc/codecs/wm8750.c
+++ b/sound/soc/codecs/wm8750.c
@@ -769,7 +769,7 @@ static const struct regmap_config wm8750_regmap = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8750_spi_probe(struct spi_device *spi)
+static int wm8750_spi_probe(struct spi_device *spi)
 {
 	struct wm8750_priv *wm8750;
 	struct regmap *regmap;
@@ -817,7 +817,7 @@ static struct spi_driver wm8750_spi_driver = {
 #endif /* CONFIG_SPI_MASTER */
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8750_i2c_probe(struct i2c_client *i2c,
+static int wm8750_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8750_priv *wm8750;
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index 0daacac..c22f580 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -1550,7 +1550,7 @@ static const struct regmap_config wm8753_regmap = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8753_spi_probe(struct spi_device *spi)
+static int wm8753_spi_probe(struct spi_device *spi)
 {
 	struct wm8753_priv *wm8753;
 	int ret;
@@ -1607,7 +1607,7 @@ static struct spi_driver wm8753_spi_driver = {
 #endif /* CONFIG_SPI_MASTER */
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8753_i2c_probe(struct i2c_client *i2c,
+static int wm8753_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8753_priv *wm8753;
diff --git a/sound/soc/codecs/wm8770.c b/sound/soc/codecs/wm8770.c
index 849b5f3..053a2f5 100644
--- a/sound/soc/codecs/wm8770.c
+++ b/sound/soc/codecs/wm8770.c
@@ -650,7 +650,7 @@ static const struct regmap_config wm8770_regmap = {
 	.volatile_reg = wm8770_volatile_reg,
 };
 
-static int __devinit wm8770_spi_probe(struct spi_device *spi)
+static int wm8770_spi_probe(struct spi_device *spi)
 {
 	struct wm8770_priv *wm8770;
 	int ret, i;
diff --git a/sound/soc/codecs/wm8776.c b/sound/soc/codecs/wm8776.c
index 7bb0ee5..93bca00 100644
--- a/sound/soc/codecs/wm8776.c
+++ b/sound/soc/codecs/wm8776.c
@@ -492,7 +492,7 @@ static const struct regmap_config wm8776_regmap = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8776_spi_probe(struct spi_device *spi)
+static int wm8776_spi_probe(struct spi_device *spi)
 {
 	struct wm8776_priv *wm8776;
 	int ret;
@@ -532,7 +532,7 @@ static struct spi_driver wm8776_spi_driver = {
 #endif /* CONFIG_SPI_MASTER */
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8776_i2c_probe(struct i2c_client *i2c,
+static int wm8776_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8776_priv *wm8776;
diff --git a/sound/soc/codecs/wm8782.c b/sound/soc/codecs/wm8782.c
index 6b82ae6..4b752b7 100644
--- a/sound/soc/codecs/wm8782.c
+++ b/sound/soc/codecs/wm8782.c
@@ -42,7 +42,7 @@ static struct snd_soc_dai_driver wm8782_dai = {
 
 static struct snd_soc_codec_driver soc_codec_dev_wm8782;
 
-static __devinit int wm8782_probe(struct platform_device *pdev)
+static int wm8782_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_wm8782, &wm8782_dai, 1);
diff --git a/sound/soc/codecs/wm8804.c b/sound/soc/codecs/wm8804.c
index 368fe09..cad8ea0 100644
--- a/sound/soc/codecs/wm8804.c
+++ b/sound/soc/codecs/wm8804.c
@@ -702,7 +702,7 @@ static struct regmap_config wm8804_regmap_config = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8804_spi_probe(struct spi_device *spi)
+static int wm8804_spi_probe(struct spi_device *spi)
 {
 	struct wm8804_priv *wm8804;
 	int ret;
@@ -745,7 +745,7 @@ static struct spi_driver wm8804_spi_driver = {
 #endif
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8804_i2c_probe(struct i2c_client *i2c,
+static int wm8804_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8804_priv *wm8804;
diff --git a/sound/soc/codecs/wm8900.c b/sound/soc/codecs/wm8900.c
index d68b2dd..375720e 100644
--- a/sound/soc/codecs/wm8900.c
+++ b/sound/soc/codecs/wm8900.c
@@ -1247,7 +1247,7 @@ static const struct regmap_config wm8900_regmap = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8900_spi_probe(struct spi_device *spi)
+static int wm8900_spi_probe(struct spi_device *spi)
 {
 	struct wm8900_priv *wm8900;
 	int ret;
@@ -1286,7 +1286,7 @@ static struct spi_driver wm8900_spi_driver = {
 #endif /* CONFIG_SPI_MASTER */
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8900_i2c_probe(struct i2c_client *i2c,
+static int wm8900_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8900_priv *wm8900;
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index 8e9977b..930b1a2 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -2020,7 +2020,7 @@ static int wm8903_set_pdata_from_of(struct i2c_client *i2c,
 	return 0;
 }
 
-static __devinit int wm8903_i2c_probe(struct i2c_client *i2c,
+static int wm8903_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8903_platform_data *pdata = dev_get_platdata(&i2c->dev);
diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
index b1d0ea5..6a150d0 100644
--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -2111,7 +2111,7 @@ static const struct regmap_config wm8904_regmap = {
 	.num_reg_defaults = ARRAY_SIZE(wm8904_reg_defaults),
 };
 
-static __devinit int wm8904_i2c_probe(struct i2c_client *i2c,
+static int wm8904_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8904_priv *wm8904;
diff --git a/sound/soc/codecs/wm8940.c b/sound/soc/codecs/wm8940.c
index 9a9a17f..d80fbcf 100644
--- a/sound/soc/codecs/wm8940.c
+++ b/sound/soc/codecs/wm8940.c
@@ -742,7 +742,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8940 = {
 	.volatile_register = wm8940_volatile_register,
 };
 
-static __devinit int wm8940_i2c_probe(struct i2c_client *i2c,
+static int wm8940_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8940_priv *wm8940;
diff --git a/sound/soc/codecs/wm8955.c b/sound/soc/codecs/wm8955.c
index a18b15b..b1fd4d7 100644
--- a/sound/soc/codecs/wm8955.c
+++ b/sound/soc/codecs/wm8955.c
@@ -1012,7 +1012,7 @@ static const struct regmap_config wm8955_regmap = {
 	.num_reg_defaults = ARRAY_SIZE(wm8955_reg_defaults),
 };
 
-static __devinit int wm8955_i2c_probe(struct i2c_client *i2c,
+static int wm8955_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8955_priv *wm8955;
diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
index bb6eba5..e22a440 100644
--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -1028,7 +1028,7 @@ static const struct regmap_config wm8960_regmap = {
 	.volatile_reg = wm8960_volatile,
 };
 
-static __devinit int wm8960_i2c_probe(struct i2c_client *i2c,
+static int wm8960_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
diff --git a/sound/soc/codecs/wm8961.c b/sound/soc/codecs/wm8961.c
index aade82e..f862f7b 100644
--- a/sound/soc/codecs/wm8961.c
+++ b/sound/soc/codecs/wm8961.c
@@ -937,7 +937,7 @@ static const struct regmap_config wm8961_regmap = {
 	.readable_reg = wm8961_readable,
 };
 
-static __devinit int wm8961_i2c_probe(struct i2c_client *i2c,
+static int wm8961_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8961_priv *wm8961;
diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index de01896..dccc56f 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3588,7 +3588,7 @@ static const struct regmap_config wm8962_regmap = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static __devinit int wm8962_i2c_probe(struct i2c_client *i2c,
+static int wm8962_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8962_pdata *pdata = dev_get_platdata(&i2c->dev);
diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c
index eea701e..6028e99 100644
--- a/sound/soc/codecs/wm8971.c
+++ b/sound/soc/codecs/wm8971.c
@@ -717,7 +717,7 @@ static const struct regmap_config wm8971_regmap = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static __devinit int wm8971_i2c_probe(struct i2c_client *i2c,
+static int wm8971_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8971_priv *wm8971;
diff --git a/sound/soc/codecs/wm8974.c b/sound/soc/codecs/wm8974.c
index ff5e507..a1c8c52 100644
--- a/sound/soc/codecs/wm8974.c
+++ b/sound/soc/codecs/wm8974.c
@@ -625,7 +625,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8974 = {
 	.num_dapm_routes = ARRAY_SIZE(wm8974_dapm_routes),
 };
 
-static __devinit int wm8974_i2c_probe(struct i2c_client *i2c,
+static int wm8974_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	int ret;
diff --git a/sound/soc/codecs/wm8978.c b/sound/soc/codecs/wm8978.c
index 5a8a0a3..7028f1a 100644
--- a/sound/soc/codecs/wm8978.c
+++ b/sound/soc/codecs/wm8978.c
@@ -1038,7 +1038,7 @@ static const struct regmap_config wm8978_regmap_config = {
 	.num_reg_defaults = ARRAY_SIZE(wm8978_reg_defaults),
 };
 
-static __devinit int wm8978_i2c_probe(struct i2c_client *i2c,
+static int wm8978_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8978_priv *wm8978;
diff --git a/sound/soc/codecs/wm8983.c b/sound/soc/codecs/wm8983.c
index e29c736..9b2b612 100644
--- a/sound/soc/codecs/wm8983.c
+++ b/sound/soc/codecs/wm8983.c
@@ -1087,7 +1087,7 @@ static const struct regmap_config wm8983_regmap = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8983_spi_probe(struct spi_device *spi)
+static int wm8983_spi_probe(struct spi_device *spi)
 {
 	struct wm8983_priv *wm8983;
 	int ret;
@@ -1127,7 +1127,7 @@ static struct spi_driver wm8983_spi_driver = {
 #endif
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8983_i2c_probe(struct i2c_client *i2c,
+static int wm8983_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8983_priv *wm8983;
diff --git a/sound/soc/codecs/wm8985.c b/sound/soc/codecs/wm8985.c
index 4e1ef71..76c0503 100644
--- a/sound/soc/codecs/wm8985.c
+++ b/sound/soc/codecs/wm8985.c
@@ -1111,7 +1111,7 @@ static const struct regmap_config wm8985_regmap = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8985_spi_probe(struct spi_device *spi)
+static int wm8985_spi_probe(struct spi_device *spi)
 {
 	struct wm8985_priv *wm8985;
 	int ret;
@@ -1163,7 +1163,7 @@ static struct spi_driver wm8985_spi_driver = {
 #endif
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8985_i2c_probe(struct i2c_client *i2c,
+static int wm8985_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8985_priv *wm8985;
diff --git a/sound/soc/codecs/wm8988.c b/sound/soc/codecs/wm8988.c
index 1e6cb3e..20b0425 100644
--- a/sound/soc/codecs/wm8988.c
+++ b/sound/soc/codecs/wm8988.c
@@ -872,7 +872,7 @@ static struct regmap_config wm8988_regmap = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8988_spi_probe(struct spi_device *spi)
+static int wm8988_spi_probe(struct spi_device *spi)
 {
 	struct wm8988_priv *wm8988;
 	int ret;
@@ -918,7 +918,7 @@ static struct spi_driver wm8988_spi_driver = {
 #endif /* CONFIG_SPI_MASTER */
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8988_i2c_probe(struct i2c_client *i2c,
+static int wm8988_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8988_priv *wm8988;
diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c
index db75bd2..a666c16 100644
--- a/sound/soc/codecs/wm8990.c
+++ b/sound/soc/codecs/wm8990.c
@@ -1382,7 +1382,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8990 = {
 };
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8990_i2c_probe(struct i2c_client *i2c,
+static int wm8990_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8990_priv *wm8990;
diff --git a/sound/soc/codecs/wm8991.c b/sound/soc/codecs/wm8991.c
index e09efea..556e43f 100644
--- a/sound/soc/codecs/wm8991.c
+++ b/sound/soc/codecs/wm8991.c
@@ -1357,7 +1357,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8991 = {
 	.reg_cache_default = wm8991_reg_defs
 };
 
-static __devinit int wm8991_i2c_probe(struct i2c_client *i2c,
+static int wm8991_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8991_priv *wm8991;
diff --git a/sound/soc/codecs/wm8993.c b/sound/soc/codecs/wm8993.c
index d57ec80..0a7c29a 100644
--- a/sound/soc/codecs/wm8993.c
+++ b/sound/soc/codecs/wm8993.c
@@ -1645,7 +1645,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8993 = {
 	.set_bias_level = wm8993_set_bias_level,
 };
 
-static __devinit int wm8993_i2c_probe(struct i2c_client *i2c,
+static int wm8993_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8993_priv *wm8993;
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 52d4ec7..2c1e0b5 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -4247,7 +4247,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8994 = {
 	.set_bias_level = wm8994_set_bias_level,
 };
 
-static int __devinit wm8994_probe(struct platform_device *pdev)
+static int wm8994_probe(struct platform_device *pdev)
 {
 	struct wm8994_priv *wm8994;
 
diff --git a/sound/soc/codecs/wm8995.c b/sound/soc/codecs/wm8995.c
index 2503294..bbfb5b9 100644
--- a/sound/soc/codecs/wm8995.c
+++ b/sound/soc/codecs/wm8995.c
@@ -2256,7 +2256,7 @@ static struct regmap_config wm8995_regmap = {
 };
 
 #if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8995_spi_probe(struct spi_device *spi)
+static int wm8995_spi_probe(struct spi_device *spi)
 {
 	struct wm8995_priv *wm8995;
 	int ret;
@@ -2310,7 +2310,7 @@ static struct spi_driver wm8995_spi_driver = {
 #endif
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8995_i2c_probe(struct i2c_client *i2c,
+static int wm8995_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8995_priv *wm8995;
diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c
index ed7d6ed..49a4147 100644
--- a/sound/soc/codecs/wm8996.c
+++ b/sound/soc/codecs/wm8996.c
@@ -2765,7 +2765,7 @@ static struct snd_soc_dai_driver wm8996_dai[] = {
 	},
 };
 
-static __devinit int wm8996_i2c_probe(struct i2c_client *i2c,
+static int wm8996_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm8996_priv *wm8996;
diff --git a/sound/soc/codecs/wm9081.c b/sound/soc/codecs/wm9081.c
index d639602..f6b522a 100644
--- a/sound/soc/codecs/wm9081.c
+++ b/sound/soc/codecs/wm9081.c
@@ -1327,7 +1327,7 @@ static const struct regmap_config wm9081_regmap = {
 };
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm9081_i2c_probe(struct i2c_client *i2c,
+static int wm9081_i2c_probe(struct i2c_client *i2c,
 				      const struct i2c_device_id *id)
 {
 	struct wm9081_priv *wm9081;
diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index 9c380f6..b330d7a 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -382,7 +382,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
 	.num_dapm_routes = ARRAY_SIZE(wm9705_audio_map),
 };
 
-static __devinit int wm9705_probe(struct platform_device *pdev)
+static int wm9705_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 73de205..c44ea10 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -685,7 +685,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm9712 = {
 	.num_dapm_routes = ARRAY_SIZE(wm9712_audio_map),
 };
 
-static __devinit int wm9712_probe(struct platform_device *pdev)
+static int wm9712_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_wm9712, wm9712_dai, ARRAY_SIZE(wm9712_dai));
diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index 5e5afeb..0285223 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -1254,7 +1254,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm9713 = {
 	.num_dapm_routes = ARRAY_SIZE(wm9713_audio_map),
 };
 
-static __devinit int wm9713_probe(struct platform_device *pdev)
+static int wm9713_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev,
 			&soc_codec_dev_wm9713, wm9713_dai, ARRAY_SIZE(wm9713_dai));
diff --git a/sound/soc/fsl/eukrea-tlv320.c b/sound/soc/fsl/eukrea-tlv320.c
index 855b851..8a87f0e 100644
--- a/sound/soc/fsl/eukrea-tlv320.c
+++ b/sound/soc/fsl/eukrea-tlv320.c
@@ -93,7 +93,7 @@ static struct snd_soc_card eukrea_tlv320 = {
 	.num_links	= 1,
 };
 
-static int __devinit eukrea_tlv320_probe(struct platform_device *pdev)
+static int eukrea_tlv320_probe(struct platform_device *pdev)
 {
 	int ret;
 	int int_port = 0, ext_port;
diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
index 36fbf7a..8a07360 100644
--- a/sound/soc/fsl/fsl_dma.c
+++ b/sound/soc/fsl/fsl_dma.c
@@ -894,7 +894,7 @@ static struct snd_pcm_ops fsl_dma_ops = {
 	.pointer	= fsl_dma_pointer,
 };
 
-static int __devinit fsl_soc_dma_probe(struct platform_device *pdev)
+static int fsl_soc_dma_probe(struct platform_device *pdev)
  {
 	struct dma_object *dma;
 	struct device_node *np = pdev->dev.of_node;
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 4ed2afd..7decbd9 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -639,7 +639,7 @@ static void make_lowercase(char *s)
 	}
 }
 
-static int __devinit fsl_ssi_probe(struct platform_device *pdev)
+static int fsl_ssi_probe(struct platform_device *pdev)
 {
 	struct fsl_ssi_private *ssi_private;
 	int ret = 0;
diff --git a/sound/soc/fsl/imx-audmux.c b/sound/soc/fsl/imx-audmux.c
index ff0266b..71454ae 100644
--- a/sound/soc/fsl/imx-audmux.c
+++ b/sound/soc/fsl/imx-audmux.c
@@ -244,7 +244,7 @@ int imx_audmux_v2_configure_port(unsigned int port, unsigned int ptcr,
 }
 EXPORT_SYMBOL_GPL(imx_audmux_v2_configure_port);
 
-static int __devinit imx_audmux_probe(struct platform_device *pdev)
+static int imx_audmux_probe(struct platform_device *pdev)
 {
 	struct resource *res;
 	struct pinctrl *pinctrl;
diff --git a/sound/soc/fsl/imx-mc13783.c b/sound/soc/fsl/imx-mc13783.c
index ed027c2..6803e0a 100644
--- a/sound/soc/fsl/imx-mc13783.c
+++ b/sound/soc/fsl/imx-mc13783.c
@@ -98,7 +98,7 @@ static struct snd_soc_card imx_mc13783 = {
 	.num_dapm_routes = ARRAY_SIZE(imx_mc13783_routes),
 };
 
-static int __devinit imx_mc13783_probe(struct platform_device *pdev)
+static int imx_mc13783_probe(struct platform_device *pdev)
 {
 	int ret;
 
diff --git a/sound/soc/fsl/imx-pcm-dma.c b/sound/soc/fsl/imx-pcm-dma.c
index 4252e16..d0ebbfa 100644
--- a/sound/soc/fsl/imx-pcm-dma.c
+++ b/sound/soc/fsl/imx-pcm-dma.c
@@ -154,7 +154,7 @@ static struct snd_soc_platform_driver imx_soc_platform_mx2 = {
 	.pcm_free	= imx_pcm_free,
 };
 
-static int __devinit imx_soc_platform_probe(struct platform_device *pdev)
+static int imx_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &imx_soc_platform_mx2);
 }
diff --git a/sound/soc/fsl/imx-pcm-fiq.c b/sound/soc/fsl/imx-pcm-fiq.c
index 8d88642..5a452a4 100644
--- a/sound/soc/fsl/imx-pcm-fiq.c
+++ b/sound/soc/fsl/imx-pcm-fiq.c
@@ -281,7 +281,7 @@ static struct snd_soc_platform_driver imx_soc_platform_fiq = {
 	.pcm_free	= imx_pcm_fiq_free,
 };
 
-static int __devinit imx_soc_platform_probe(struct platform_device *pdev)
+static int imx_soc_platform_probe(struct platform_device *pdev)
 {
 	struct imx_ssi *ssi = platform_get_drvdata(pdev);
 	int ret;
diff --git a/sound/soc/fsl/imx-sgtl5000.c b/sound/soc/fsl/imx-sgtl5000.c
index dc646b2..013322c 100644
--- a/sound/soc/fsl/imx-sgtl5000.c
+++ b/sound/soc/fsl/imx-sgtl5000.c
@@ -56,7 +56,7 @@ static const struct snd_soc_dapm_widget imx_sgtl5000_dapm_widgets[] = {
 	SND_SOC_DAPM_SPK("Ext Spk", NULL),
 };
 
-static int __devinit imx_sgtl5000_probe(struct platform_device *pdev)
+static int imx_sgtl5000_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct device_node *ssi_np, *codec_np;
diff --git a/sound/soc/fsl/mpc5200_psc_ac97.c b/sound/soc/fsl/mpc5200_psc_ac97.c
index da6d6d9..8a7ec26 100644
--- a/sound/soc/fsl/mpc5200_psc_ac97.c
+++ b/sound/soc/fsl/mpc5200_psc_ac97.c
@@ -277,7 +277,7 @@ static struct snd_soc_dai_driver psc_ac97_dai[] = {
  * - Probe/remove operations
  * - OF device match table
  */
-static int __devinit psc_ac97_of_probe(struct platform_device *op)
+static int psc_ac97_of_probe(struct platform_device *op)
 {
 	int rc;
 	struct snd_ac97 ac97;
diff --git a/sound/soc/fsl/mpc5200_psc_i2s.c b/sound/soc/fsl/mpc5200_psc_i2s.c
index e25c62d..328b9df 100644
--- a/sound/soc/fsl/mpc5200_psc_i2s.c
+++ b/sound/soc/fsl/mpc5200_psc_i2s.c
@@ -153,7 +153,7 @@ static struct snd_soc_dai_driver psc_i2s_dai[] = {{
  * - Probe/remove operations
  * - OF device match table
  */
-static int __devinit psc_i2s_of_probe(struct platform_device *op)
+static int psc_i2s_of_probe(struct platform_device *op)
 {
 	int rc;
 	struct psc_dma *psc_dma;
diff --git a/sound/soc/fsl/mx27vis-aic32x4.c b/sound/soc/fsl/mx27vis-aic32x4.c
index 687b830..e88a5ea 100644
--- a/sound/soc/fsl/mx27vis-aic32x4.c
+++ b/sound/soc/fsl/mx27vis-aic32x4.c
@@ -180,7 +180,7 @@ static struct snd_soc_card mx27vis_aic32x4 = {
 	.num_dapm_routes = ARRAY_SIZE(aic32x4_dapm_routes),
 };
 
-static int __devinit mx27vis_aic32x4_probe(struct platform_device *pdev)
+static int mx27vis_aic32x4_probe(struct platform_device *pdev)
 {
 	struct snd_mx27vis_platform_data *pdata = pdev->dev.platform_data;
 	int ret;
diff --git a/sound/soc/jz4740/jz4740-i2s.c b/sound/soc/jz4740/jz4740-i2s.c
index 940e0f3..21051b3 100644
--- a/sound/soc/jz4740/jz4740-i2s.c
+++ b/sound/soc/jz4740/jz4740-i2s.c
@@ -425,7 +425,7 @@ static struct snd_soc_dai_driver jz4740_i2s_dai = {
 	.resume = jz4740_i2s_resume,
 };
 
-static int __devinit jz4740_i2s_dev_probe(struct platform_device *pdev)
+static int jz4740_i2s_dev_probe(struct platform_device *pdev)
 {
 	struct jz4740_i2s *i2s;
 	int ret;
diff --git a/sound/soc/jz4740/jz4740-pcm.c b/sound/soc/jz4740/jz4740-pcm.c
index c7b61ab..770e4e2 100644
--- a/sound/soc/jz4740/jz4740-pcm.c
+++ b/sound/soc/jz4740/jz4740-pcm.c
@@ -335,7 +335,7 @@ static struct snd_soc_platform_driver jz4740_soc_platform = {
 		.pcm_free	= jz4740_pcm_free,
 };
 
-static int __devinit jz4740_pcm_probe(struct platform_device *pdev)
+static int jz4740_pcm_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &jz4740_soc_platform);
 }
diff --git a/sound/soc/jz4740/qi_lb60.c b/sound/soc/jz4740/qi_lb60.c
index 5c15950..5937ddf 100644
--- a/sound/soc/jz4740/qi_lb60.c
+++ b/sound/soc/jz4740/qi_lb60.c
@@ -96,7 +96,7 @@ static const struct gpio qi_lb60_gpios[] = {
 	{ QI_LB60_AMP_GPIO, GPIOF_OUT_INIT_LOW, "AMP" },
 };
 
-static int __devinit qi_lb60_probe(struct platform_device *pdev)
+static int qi_lb60_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &qi_lb60;
 	int ret;
diff --git a/sound/soc/kirkwood/kirkwood-dma.c b/sound/soc/kirkwood/kirkwood-dma.c
index da85321..23ead2b 100644
--- a/sound/soc/kirkwood/kirkwood-dma.c
+++ b/sound/soc/kirkwood/kirkwood-dma.c
@@ -369,7 +369,7 @@ static struct snd_soc_platform_driver kirkwood_soc_platform = {
 	.pcm_free	= kirkwood_dma_free_dma_buffers,
 };
 
-static int __devinit kirkwood_soc_platform_probe(struct platform_device *pdev)
+static int kirkwood_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &kirkwood_soc_platform);
 }
diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index 4565dc3..2c6e99f 100644
--- a/sound/soc/kirkwood/kirkwood-i2s.c
+++ b/sound/soc/kirkwood/kirkwood-i2s.c
@@ -398,7 +398,7 @@ static struct snd_soc_dai_driver kirkwood_i2s_dai = {
 	.ops = &kirkwood_i2s_dai_ops,
 };
 
-static __devinit int kirkwood_i2s_dev_probe(struct platform_device *pdev)
+static int kirkwood_i2s_dev_probe(struct platform_device *pdev)
 {
 	struct resource *mem;
 	struct kirkwood_asoc_platform_data *data =
diff --git a/sound/soc/kirkwood/kirkwood-openrd.c b/sound/soc/kirkwood/kirkwood-openrd.c
index f8518dc..1c682ef 100644
--- a/sound/soc/kirkwood/kirkwood-openrd.c
+++ b/sound/soc/kirkwood/kirkwood-openrd.c
@@ -71,7 +71,7 @@ static struct snd_soc_card openrd_client = {
 	.num_links = ARRAY_SIZE(openrd_client_dai),
 };
 
-static int __devinit openrd_probe(struct platform_device *pdev)
+static int openrd_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &openrd_client;
 	int ret;
diff --git a/sound/soc/kirkwood/kirkwood-t5325.c b/sound/soc/kirkwood/kirkwood-t5325.c
index d66b21e..bc142a7 100644
--- a/sound/soc/kirkwood/kirkwood-t5325.c
+++ b/sound/soc/kirkwood/kirkwood-t5325.c
@@ -92,7 +92,7 @@ static struct snd_soc_card t5325 = {
 	.num_dapm_routes = ARRAY_SIZE(t5325_route),
 };
 
-static int __devinit t5325_probe(struct platform_device *pdev)
+static int t5325_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &t5325;
 	int ret;
diff --git a/sound/soc/mid-x86/mfld_machine.c b/sound/soc/mid-x86/mfld_machine.c
index c703870..671eb18 100644
--- a/sound/soc/mid-x86/mfld_machine.c
+++ b/sound/soc/mid-x86/mfld_machine.c
@@ -358,7 +358,7 @@ static irqreturn_t snd_mfld_jack_detection(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static int __devinit snd_mfld_mc_probe(struct platform_device *pdev)
+static int snd_mfld_mc_probe(struct platform_device *pdev)
 {
 	int ret_val = 0, irq;
 	struct mfld_mc_private *mc_drv_ctx;
diff --git a/sound/soc/mxs/mxs-pcm.c b/sound/soc/mxs/mxs-pcm.c
index f82d766..d41c770 100644
--- a/sound/soc/mxs/mxs-pcm.c
+++ b/sound/soc/mxs/mxs-pcm.c
@@ -220,7 +220,7 @@ static struct snd_soc_platform_driver mxs_soc_platform = {
 	.pcm_free	= mxs_pcm_free,
 };
 
-int __devinit mxs_pcm_platform_register(struct device *dev)
+int mxs_pcm_platform_register(struct device *dev)
 {
 	return snd_soc_register_platform(dev, &mxs_soc_platform);
 }
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index 93fe366..c8c882a 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -655,7 +655,7 @@ static irqreturn_t mxs_saif_irq(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int __devinit mxs_saif_probe(struct platform_device *pdev)
+static int mxs_saif_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct resource *iores, *dmares;
diff --git a/sound/soc/mxs/mxs-sgtl5000.c b/sound/soc/mxs/mxs-sgtl5000.c
index add904e..638c42d 100644
--- a/sound/soc/mxs/mxs-sgtl5000.c
+++ b/sound/soc/mxs/mxs-sgtl5000.c
@@ -112,7 +112,7 @@ static struct snd_soc_card mxs_sgtl5000 = {
 	.num_links	= ARRAY_SIZE(mxs_sgtl5000_dai),
 };
 
-static int __devinit mxs_sgtl5000_probe_dt(struct platform_device *pdev)
+static int mxs_sgtl5000_probe_dt(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct device_node *saif_np[2], *codec_np;
@@ -145,7 +145,7 @@ static int __devinit mxs_sgtl5000_probe_dt(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devinit mxs_sgtl5000_probe(struct platform_device *pdev)
+static int mxs_sgtl5000_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &mxs_sgtl5000;
 	int ret;
diff --git a/sound/soc/nuc900/nuc900-ac97.c b/sound/soc/nuc900/nuc900-ac97.c
index a2171bf..0121557 100644
--- a/sound/soc/nuc900/nuc900-ac97.c
+++ b/sound/soc/nuc900/nuc900-ac97.c
@@ -314,7 +314,7 @@ static struct snd_soc_dai_driver nuc900_ac97_dai = {
 	.ops = &nuc900_ac97_dai_ops,
 };
 
-static int __devinit nuc900_ac97_drvprobe(struct platform_device *pdev)
+static int nuc900_ac97_drvprobe(struct platform_device *pdev)
 {
 	struct nuc900_audio *nuc900_audio;
 	int ret;
diff --git a/sound/soc/nuc900/nuc900-pcm.c b/sound/soc/nuc900/nuc900-pcm.c
index ca49f9d..37d8cc3 100644
--- a/sound/soc/nuc900/nuc900-pcm.c
+++ b/sound/soc/nuc900/nuc900-pcm.c
@@ -337,7 +337,7 @@ static struct snd_soc_platform_driver nuc900_soc_platform = {
 	.pcm_free	= nuc900_dma_free_dma_buffers,
 };
 
-static int __devinit nuc900_soc_platform_probe(struct platform_device *pdev)
+static int nuc900_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &nuc900_soc_platform);
 }
diff --git a/sound/soc/omap/ams-delta.c b/sound/soc/omap/ams-delta.c
index 9c0107e..1acab65 100644
--- a/sound/soc/omap/ams-delta.c
+++ b/sound/soc/omap/ams-delta.c
@@ -575,7 +575,7 @@ static struct snd_soc_card ams_delta_audio_card = {
 };
 
 /* Module init/exit */
-static __devinit int ams_delta_probe(struct platform_device *pdev)
+static int ams_delta_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &ams_delta_audio_card;
 	int ret;
diff --git a/sound/soc/omap/mcbsp.c b/sound/soc/omap/mcbsp.c
index afb8d4f..e166312 100644
--- a/sound/soc/omap/mcbsp.c
+++ b/sound/soc/omap/mcbsp.c
@@ -932,7 +932,7 @@ static const struct attribute_group sidetone_attr_group = {
 	.attrs = (struct attribute **)sidetone_attrs,
 };
 
-static int __devinit omap_st_add(struct omap_mcbsp *mcbsp,
+static int omap_st_add(struct omap_mcbsp *mcbsp,
 				 struct resource *res)
 {
 	struct omap_mcbsp_st_data *st_data;
@@ -959,7 +959,7 @@ static int __devinit omap_st_add(struct omap_mcbsp *mcbsp,
  * McBSP1 and McBSP3 are directly mapped on 1610 and 1510.
  * 730 has only 2 McBSP, and both of them are MPU peripherals.
  */
-int __devinit omap_mcbsp_init(struct platform_device *pdev)
+int omap_mcbsp_init(struct platform_device *pdev)
 {
 	struct omap_mcbsp *mcbsp = platform_get_drvdata(pdev);
 	struct resource *res;
diff --git a/sound/soc/omap/mcbsp.h b/sound/soc/omap/mcbsp.h
index 49a6725..27bf6c3 100644
--- a/sound/soc/omap/mcbsp.h
+++ b/sound/soc/omap/mcbsp.h
@@ -341,7 +341,7 @@ int omap_st_enable(struct omap_mcbsp *mcbsp);
 int omap_st_disable(struct omap_mcbsp *mcbsp);
 int omap_st_is_enabled(struct omap_mcbsp *mcbsp);
 
-int __devinit omap_mcbsp_init(struct platform_device *pdev);
+int omap_mcbsp_init(struct platform_device *pdev);
 void __devexit omap_mcbsp_sysfs_remove(struct omap_mcbsp *mcbsp);
 
 #endif /* __ASOC_MCBSP_H */
diff --git a/sound/soc/omap/omap-abe-twl6040.c b/sound/soc/omap/omap-abe-twl6040.c
index ab439fe..a594ebf 100644
--- a/sound/soc/omap/omap-abe-twl6040.c
+++ b/sound/soc/omap/omap-abe-twl6040.c
@@ -273,7 +273,7 @@ static struct snd_soc_card omap_abe_card = {
 	.num_dapm_routes = ARRAY_SIZE(audio_map),
 };
 
-static __devinit int omap_abe_probe(struct platform_device *pdev)
+static int omap_abe_probe(struct platform_device *pdev)
 {
 	struct omap_abe_twl6040_data *pdata = dev_get_platdata(&pdev->dev);
 	struct device_node *node = pdev->dev.of_node;
diff --git a/sound/soc/omap/omap-dmic.c b/sound/soc/omap/omap-dmic.c
index d101541..bd46176 100644
--- a/sound/soc/omap/omap-dmic.c
+++ b/sound/soc/omap/omap-dmic.c
@@ -448,7 +448,7 @@ static struct snd_soc_dai_driver omap_dmic_dai = {
 	.ops = &omap_dmic_dai_ops,
 };
 
-static __devinit int asoc_dmic_probe(struct platform_device *pdev)
+static int asoc_dmic_probe(struct platform_device *pdev)
 {
 	struct omap_dmic *dmic;
 	struct resource *res;
diff --git a/sound/soc/omap/omap-hdmi-card.c b/sound/soc/omap/omap-hdmi-card.c
index 290b94c..092d45c 100644
--- a/sound/soc/omap/omap-hdmi-card.c
+++ b/sound/soc/omap/omap-hdmi-card.c
@@ -45,7 +45,7 @@ static struct snd_soc_card snd_soc_omap_hdmi = {
 	.num_links = 1,
 };
 
-static __devinit int omap_hdmi_probe(struct platform_device *pdev)
+static int omap_hdmi_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &snd_soc_omap_hdmi;
 	int ret;
diff --git a/sound/soc/omap/omap-hdmi.c b/sound/soc/omap/omap-hdmi.c
index 7225e7c..3845781 100644
--- a/sound/soc/omap/omap-hdmi.c
+++ b/sound/soc/omap/omap-hdmi.c
@@ -262,7 +262,7 @@ static struct snd_soc_dai_driver omap_hdmi_dai = {
 	.ops = &omap_hdmi_dai_ops,
 };
 
-static __devinit int omap_hdmi_probe(struct platform_device *pdev)
+static int omap_hdmi_probe(struct platform_device *pdev)
 {
 	int ret;
 	struct resource *hdmi_rsrc;
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 734a6dc..316ea7d 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -758,7 +758,7 @@ static const struct of_device_id omap_mcbsp_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, omap_mcbsp_of_match);
 
-static __devinit int asoc_mcbsp_probe(struct platform_device *pdev)
+static int asoc_mcbsp_probe(struct platform_device *pdev)
 {
 	struct omap_mcbsp_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct omap_mcbsp *mcbsp;
diff --git a/sound/soc/omap/omap-mcpdm.c b/sound/soc/omap/omap-mcpdm.c
index 9a37da1..803ff6a 100644
--- a/sound/soc/omap/omap-mcpdm.c
+++ b/sound/soc/omap/omap-mcpdm.c
@@ -429,7 +429,7 @@ void omap_mcpdm_configure_dn_offsets(struct snd_soc_pcm_runtime *rtd,
 }
 EXPORT_SYMBOL_GPL(omap_mcpdm_configure_dn_offsets);
 
-static __devinit int asoc_mcpdm_probe(struct platform_device *pdev)
+static int asoc_mcpdm_probe(struct platform_device *pdev)
 {
 	struct omap_mcpdm *mcpdm;
 	struct resource *res;
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index 0fb8614..21f927b 100644
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -302,7 +302,7 @@ static struct snd_soc_platform_driver omap_soc_platform = {
 	.pcm_free	= omap_pcm_free_dma_buffers,
 };
 
-static __devinit int omap_pcm_probe(struct platform_device *pdev)
+static int omap_pcm_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev,
 			&omap_soc_platform);
diff --git a/sound/soc/omap/omap-twl4030.c b/sound/soc/omap/omap-twl4030.c
index c356c6f..c505ec2 100644
--- a/sound/soc/omap/omap-twl4030.c
+++ b/sound/soc/omap/omap-twl4030.c
@@ -107,7 +107,7 @@ static struct snd_soc_card omap_twl4030_card = {
 	.num_links = ARRAY_SIZE(omap_twl4030_dai_links),
 };
 
-static __devinit int omap_twl4030_probe(struct platform_device *pdev)
+static int omap_twl4030_probe(struct platform_device *pdev)
 {
 	struct omap_tw4030_pdata *pdata = dev_get_platdata(&pdev->dev);
 	struct device_node *node = pdev->dev.of_node;
diff --git a/sound/soc/pxa/brownstone.c b/sound/soc/pxa/brownstone.c
index 162532b..8c5b325 100644
--- a/sound/soc/pxa/brownstone.c
+++ b/sound/soc/pxa/brownstone.c
@@ -140,7 +140,7 @@ static struct snd_soc_card brownstone = {
 	.num_dapm_routes = ARRAY_SIZE(brownstone_audio_map),
 };
 
-static int __devinit brownstone_probe(struct platform_device *pdev)
+static int brownstone_probe(struct platform_device *pdev)
 {
 	int ret;
 
diff --git a/sound/soc/pxa/corgi.c b/sound/soc/pxa/corgi.c
index d74cc33..3e08dcf 100644
--- a/sound/soc/pxa/corgi.c
+++ b/sound/soc/pxa/corgi.c
@@ -303,7 +303,7 @@ static struct snd_soc_card corgi = {
 	.num_dapm_routes = ARRAY_SIZE(corgi_audio_map),
 };
 
-static int __devinit corgi_probe(struct platform_device *pdev)
+static int corgi_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &corgi;
 	int ret;
diff --git a/sound/soc/pxa/e740_wm9705.c b/sound/soc/pxa/e740_wm9705.c
index f2c828e..189d77c 100644
--- a/sound/soc/pxa/e740_wm9705.c
+++ b/sound/soc/pxa/e740_wm9705.c
@@ -144,7 +144,7 @@ static struct gpio e740_audio_gpios[] = {
 	{ GPIO_E740_WM9705_nAVDD2, GPIOF_OUT_INIT_HIGH, "Audio power" },
 };
 
-static int __devinit e740_probe(struct platform_device *pdev)
+static int e740_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &e740;
 	int ret;
diff --git a/sound/soc/pxa/e750_wm9705.c b/sound/soc/pxa/e750_wm9705.c
index fb38914..319d55b 100644
--- a/sound/soc/pxa/e750_wm9705.c
+++ b/sound/soc/pxa/e750_wm9705.c
@@ -126,7 +126,7 @@ static struct gpio e750_audio_gpios[] = {
 	{ GPIO_E750_SPK_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
 };
 
-static int __devinit e750_probe(struct platform_device *pdev)
+static int e750_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &e750;
 	int ret;
diff --git a/sound/soc/pxa/e800_wm9712.c b/sound/soc/pxa/e800_wm9712.c
index 9a93cae..9fa2cd1 100644
--- a/sound/soc/pxa/e800_wm9712.c
+++ b/sound/soc/pxa/e800_wm9712.c
@@ -116,7 +116,7 @@ static struct gpio e800_audio_gpios[] = {
 	{ GPIO_E800_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
 };
 
-static int __devinit e800_probe(struct platform_device *pdev)
+static int e800_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &e800;
 	int ret;
diff --git a/sound/soc/pxa/hx4700.c b/sound/soc/pxa/hx4700.c
index 368cd51..40c07b3 100644
--- a/sound/soc/pxa/hx4700.c
+++ b/sound/soc/pxa/hx4700.c
@@ -183,7 +183,7 @@ static struct gpio hx4700_audio_gpios[] = {
 	{ GPIO92_HX4700_HP_DRIVER, GPIOF_OUT_INIT_LOW, "EP_POWER" },
 };
 
-static int __devinit hx4700_audio_probe(struct platform_device *pdev)
+static int hx4700_audio_probe(struct platform_device *pdev)
 {
 	int ret;
 
diff --git a/sound/soc/pxa/imote2.c b/sound/soc/pxa/imote2.c
index d8b123b..e89441d 100644
--- a/sound/soc/pxa/imote2.c
+++ b/sound/soc/pxa/imote2.c
@@ -65,7 +65,7 @@ static struct snd_soc_card imote2 = {
 	.num_links = 1,
 };
 
-static int __devinit imote2_probe(struct platform_device *pdev)
+static int imote2_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &imote2;
 	int ret;
diff --git a/sound/soc/pxa/mioa701_wm9713.c b/sound/soc/pxa/mioa701_wm9713.c
index c02d1da..135a839 100644
--- a/sound/soc/pxa/mioa701_wm9713.c
+++ b/sound/soc/pxa/mioa701_wm9713.c
@@ -186,7 +186,7 @@ static struct snd_soc_card mioa701 = {
 	.num_links = ARRAY_SIZE(mioa701_dai),
 };
 
-static int __devinit mioa701_wm9713_probe(struct platform_device *pdev)
+static int mioa701_wm9713_probe(struct platform_device *pdev)
 {
 	int rc;
 
diff --git a/sound/soc/pxa/mmp-pcm.c b/sound/soc/pxa/mmp-pcm.c
index 3e8cb21..1324673 100644
--- a/sound/soc/pxa/mmp-pcm.c
+++ b/sound/soc/pxa/mmp-pcm.c
@@ -257,7 +257,7 @@ struct snd_soc_platform_driver mmp_soc_platform = {
 	.pcm_free	= mmp_pcm_free_dma_buffers,
 };
 
-static __devinit int mmp_pcm_probe(struct platform_device *pdev)
+static int mmp_pcm_probe(struct platform_device *pdev)
 {
 	struct mmp_audio_platdata *pdata = pdev->dev.platform_data;
 
diff --git a/sound/soc/pxa/mmp-sspa.c b/sound/soc/pxa/mmp-sspa.c
index acdbdcf..c97ce5b0 100644
--- a/sound/soc/pxa/mmp-sspa.c
+++ b/sound/soc/pxa/mmp-sspa.c
@@ -405,7 +405,7 @@ struct snd_soc_dai_driver mmp_sspa_dai = {
 	.ops = &mmp_sspa_dai_ops,
 };
 
-static __devinit int asoc_mmp_sspa_probe(struct platform_device *pdev)
+static int asoc_mmp_sspa_probe(struct platform_device *pdev)
 {
 	struct sspa_priv *priv;
 	struct resource *res;
diff --git a/sound/soc/pxa/poodle.c b/sound/soc/pxa/poodle.c
index 48ba129..bc00684 100644
--- a/sound/soc/pxa/poodle.c
+++ b/sound/soc/pxa/poodle.c
@@ -269,7 +269,7 @@ static struct snd_soc_card poodle = {
 	.num_dapm_routes = ARRAY_SIZE(poodle_audio_map),
 };
 
-static int __devinit poodle_probe(struct platform_device *pdev)
+static int poodle_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &poodle;
 	int ret;
diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c
index 9d13de0..6a61748 100644
--- a/sound/soc/pxa/pxa-ssp.c
+++ b/sound/soc/pxa/pxa-ssp.c
@@ -794,7 +794,7 @@ static struct snd_soc_dai_driver pxa_ssp_dai = {
 		.ops = &pxa_ssp_dai_ops,
 };
 
-static __devinit int asoc_ssp_probe(struct platform_device *pdev)
+static int asoc_ssp_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_dai(&pdev->dev, &pxa_ssp_dai);
 }
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index 19224cb..0a6194d 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -104,7 +104,7 @@ static int pxa2xx_ac97_resume(struct snd_soc_dai *dai)
 #define pxa2xx_ac97_resume	NULL
 #endif
 
-static int __devinit pxa2xx_ac97_probe(struct snd_soc_dai *dai)
+static int pxa2xx_ac97_probe(struct snd_soc_dai *dai)
 {
 	return pxa2xx_ac97_hw_probe(to_platform_device(dai->dev));
 }
@@ -234,7 +234,7 @@ static struct snd_soc_dai_driver pxa_ac97_dai_driver[] = {
 
 EXPORT_SYMBOL_GPL(soc_ac97_ops);
 
-static __devinit int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
+static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
 {
 	if (pdev->id != -1) {
 		dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
diff --git a/sound/soc/pxa/pxa2xx-pcm.c b/sound/soc/pxa/pxa2xx-pcm.c
index 96cd23d..9d6f78a 100644
--- a/sound/soc/pxa/pxa2xx-pcm.c
+++ b/sound/soc/pxa/pxa2xx-pcm.c
@@ -120,7 +120,7 @@ static struct snd_soc_platform_driver pxa2xx_soc_platform = {
 	.pcm_free	= pxa2xx_pcm_free_dma_buffers,
 };
 
-static int __devinit pxa2xx_soc_platform_probe(struct platform_device *pdev)
+static int pxa2xx_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &pxa2xx_soc_platform);
 }
diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c
index fca9e41..4f6d8b1 100644
--- a/sound/soc/pxa/tosa.c
+++ b/sound/soc/pxa/tosa.c
@@ -241,7 +241,7 @@ static struct snd_soc_card tosa = {
 	.num_links = ARRAY_SIZE(tosa_dai),
 };
 
-static int __devinit tosa_probe(struct platform_device *pdev)
+static int tosa_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &tosa;
 	int ret;
diff --git a/sound/soc/pxa/ttc-dkb.c b/sound/soc/pxa/ttc-dkb.c
index 0e22e68..490c76c 100644
--- a/sound/soc/pxa/ttc-dkb.c
+++ b/sound/soc/pxa/ttc-dkb.c
@@ -131,7 +131,7 @@ static struct snd_soc_card ttc_dkb_card = {
 	.num_dapm_routes = ARRAY_SIZE(ttc_audio_map),
 };
 
-static int __devinit ttc_dkb_probe(struct platform_device *pdev)
+static int ttc_dkb_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &ttc_dkb_card;
 	int ret;
diff --git a/sound/soc/s6000/s6000-i2s.c b/sound/soc/s6000/s6000-i2s.c
index aa44a4f..79abcd0 100644
--- a/sound/soc/s6000/s6000-i2s.c
+++ b/sound/soc/s6000/s6000-i2s.c
@@ -436,7 +436,7 @@ static struct snd_soc_dai_driver s6000_i2s_dai = {
 	.ops = &s6000_i2s_dai_ops,
 };
 
-static int __devinit s6000_i2s_probe(struct platform_device *pdev)
+static int s6000_i2s_probe(struct platform_device *pdev)
 {
 	struct s6000_i2s_dev *dev;
 	struct resource *scbmem, *sifmem, *region, *dma1, *dma2;
diff --git a/sound/soc/s6000/s6000-pcm.c b/sound/soc/s6000/s6000-pcm.c
index af245bc..d4672ba 100644
--- a/sound/soc/s6000/s6000-pcm.c
+++ b/sound/soc/s6000/s6000-pcm.c
@@ -500,7 +500,7 @@ static struct snd_soc_platform_driver s6000_soc_platform = {
 	.pcm_free = 	s6000_pcm_free,
 };
 
-static int __devinit s6000_soc_platform_probe(struct platform_device *pdev)
+static int s6000_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &s6000_soc_platform);
 }
diff --git a/sound/soc/samsung/ac97.c b/sound/soc/samsung/ac97.c
index a9f9632d..1d097f7 100644
--- a/sound/soc/samsung/ac97.c
+++ b/sound/soc/samsung/ac97.c
@@ -370,7 +370,7 @@ static struct snd_soc_dai_driver s3c_ac97_dai[] = {
 	},
 };
 
-static __devinit int s3c_ac97_probe(struct platform_device *pdev)
+static int s3c_ac97_probe(struct platform_device *pdev)
 {
 	struct resource *mem_res, *dmatx_res, *dmarx_res, *dmamic_res, *irq_res;
 	struct s3c_audio_pdata *ac97_pdata;
diff --git a/sound/soc/samsung/bells.c b/sound/soc/samsung/bells.c
index 0e02d14..f7545ac 100644
--- a/sound/soc/samsung/bells.c
+++ b/sound/soc/samsung/bells.c
@@ -412,7 +412,7 @@ static struct snd_soc_card bells_cards[] = {
 };
 
 
-static __devinit int bells_probe(struct platform_device *pdev)
+static int bells_probe(struct platform_device *pdev)
 {
 	int ret;
 
diff --git a/sound/soc/samsung/dma.c b/sound/soc/samsung/dma.c
index f02896e..3705a8a 100644
--- a/sound/soc/samsung/dma.c
+++ b/sound/soc/samsung/dma.c
@@ -432,7 +432,7 @@ static struct snd_soc_platform_driver samsung_asoc_platform = {
 	.pcm_free	= dma_free_dma_buffers,
 };
 
-static int __devinit samsung_asoc_platform_probe(struct platform_device *pdev)
+static int samsung_asoc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &samsung_asoc_platform);
 }
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index ec4567b..6a60e71 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -950,8 +950,7 @@ static const struct snd_soc_dai_ops samsung_i2s_dai_ops = {
 					SNDRV_PCM_FMTBIT_S16_LE | \
 					SNDRV_PCM_FMTBIT_S24_LE)
 
-static __devinit
-struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
+static struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
 {
 	struct i2s_dai *i2s;
 
@@ -992,7 +991,7 @@ struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
 	return i2s;
 }
 
-static __devinit int samsung_i2s_probe(struct platform_device *pdev)
+static int samsung_i2s_probe(struct platform_device *pdev)
 {
 	u32 dma_pl_chan, dma_cp_chan, dma_pl_sec_chan;
 	struct i2s_dai *pri_dai, *sec_dai = NULL;
diff --git a/sound/soc/samsung/idma.c b/sound/soc/samsung/idma.c
index 9db1a5d..136285b 100644
--- a/sound/soc/samsung/idma.c
+++ b/sound/soc/samsung/idma.c
@@ -416,7 +416,7 @@ static struct snd_soc_platform_driver asoc_idma_platform = {
 	.pcm_free = idma_free,
 };
 
-static int __devinit asoc_idma_platform_probe(struct platform_device *pdev)
+static int asoc_idma_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &asoc_idma_platform);
 }
diff --git a/sound/soc/samsung/littlemill.c b/sound/soc/samsung/littlemill.c
index c84e1ac..0d06249 100644
--- a/sound/soc/samsung/littlemill.c
+++ b/sound/soc/samsung/littlemill.c
@@ -297,7 +297,7 @@ static struct snd_soc_card littlemill = {
 	.late_probe = littlemill_late_probe,
 };
 
-static __devinit int littlemill_probe(struct platform_device *pdev)
+static int littlemill_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &littlemill;
 	int ret;
diff --git a/sound/soc/samsung/lowland.c b/sound/soc/samsung/lowland.c
index 782ee23..e4f08fc 100644
--- a/sound/soc/samsung/lowland.c
+++ b/sound/soc/samsung/lowland.c
@@ -180,7 +180,7 @@ static struct snd_soc_card lowland = {
 	.num_dapm_routes = ARRAY_SIZE(audio_paths),
 };
 
-static __devinit int lowland_probe(struct platform_device *pdev)
+static int lowland_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &lowland;
 	int ret;
diff --git a/sound/soc/samsung/pcm.c b/sound/soc/samsung/pcm.c
index 918f943..3708658 100644
--- a/sound/soc/samsung/pcm.c
+++ b/sound/soc/samsung/pcm.c
@@ -490,7 +490,7 @@ static struct snd_soc_dai_driver s3c_pcm_dai[] = {
 	},
 };
 
-static __devinit int s3c_pcm_dev_probe(struct platform_device *pdev)
+static int s3c_pcm_dev_probe(struct platform_device *pdev)
 {
 	struct s3c_pcm_info *pcm;
 	struct resource *mem_res, *dmatx_res, *dmarx_res;
diff --git a/sound/soc/samsung/s3c2412-i2s.c b/sound/soc/samsung/s3c2412-i2s.c
index 83fd46a..e2db71e 100644
--- a/sound/soc/samsung/s3c2412-i2s.c
+++ b/sound/soc/samsung/s3c2412-i2s.c
@@ -160,7 +160,7 @@ static struct snd_soc_dai_driver s3c2412_i2s_dai = {
 	.ops = &s3c2412_i2s_dai_ops,
 };
 
-static __devinit int s3c2412_iis_dev_probe(struct platform_device *pdev)
+static int s3c2412_iis_dev_probe(struct platform_device *pdev)
 {
 	return s3c_i2sv2_register_dai(&pdev->dev, -1, &s3c2412_i2s_dai);
 }
diff --git a/sound/soc/samsung/s3c24xx-i2s.c b/sound/soc/samsung/s3c24xx-i2s.c
index 347676f..05491d9 100644
--- a/sound/soc/samsung/s3c24xx-i2s.c
+++ b/sound/soc/samsung/s3c24xx-i2s.c
@@ -465,7 +465,7 @@ static struct snd_soc_dai_driver s3c24xx_i2s_dai = {
 	.ops = &s3c24xx_i2s_dai_ops,
 };
 
-static __devinit int s3c24xx_iis_dev_probe(struct platform_device *pdev)
+static int s3c24xx_iis_dev_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_dai(&pdev->dev, &s3c24xx_i2s_dai);
 }
diff --git a/sound/soc/samsung/s3c24xx_simtec.c b/sound/soc/samsung/s3c24xx_simtec.c
index 335a7d8..98b7c98 100644
--- a/sound/soc/samsung/s3c24xx_simtec.c
+++ b/sound/soc/samsung/s3c24xx_simtec.c
@@ -313,7 +313,7 @@ const struct dev_pm_ops simtec_audio_pmops = {
 EXPORT_SYMBOL_GPL(simtec_audio_pmops);
 #endif
 
-int __devinit simtec_audio_core_probe(struct platform_device *pdev,
+int simtec_audio_core_probe(struct platform_device *pdev,
 				      struct snd_soc_card *card)
 {
 	struct platform_device *snd_dev;
diff --git a/sound/soc/samsung/s3c24xx_simtec_hermes.c b/sound/soc/samsung/s3c24xx_simtec_hermes.c
index df40b8a..80617c3 100644
--- a/sound/soc/samsung/s3c24xx_simtec_hermes.c
+++ b/sound/soc/samsung/s3c24xx_simtec_hermes.c
@@ -99,7 +99,7 @@ static struct snd_soc_card snd_soc_machine_simtec_aic33 = {
 	.num_dapm_routes = ARRAY_SIZE(base_map),
 };
 
-static int __devinit simtec_audio_hermes_probe(struct platform_device *pd)
+static int simtec_audio_hermes_probe(struct platform_device *pd)
 {
 	dev_info(&pd->dev, "probing....\n");
 	return simtec_audio_core_probe(pd, &snd_soc_machine_simtec_aic33);
diff --git a/sound/soc/samsung/s3c24xx_simtec_tlv320aic23.c b/sound/soc/samsung/s3c24xx_simtec_tlv320aic23.c
index 2e64534..e359d3d 100644
--- a/sound/soc/samsung/s3c24xx_simtec_tlv320aic23.c
+++ b/sound/soc/samsung/s3c24xx_simtec_tlv320aic23.c
@@ -88,7 +88,7 @@ static struct snd_soc_card snd_soc_machine_simtec_aic23 = {
 	.num_dapm_routes = ARRAY_SIZE(base_map),
 };
 
-static int __devinit simtec_audio_tlv320aic23_probe(struct platform_device *pd)
+static int simtec_audio_tlv320aic23_probe(struct platform_device *pd)
 {
 	return simtec_audio_core_probe(pd, &snd_soc_machine_simtec_aic23);
 }
diff --git a/sound/soc/samsung/smdk_wm8580pcm.c b/sound/soc/samsung/smdk_wm8580pcm.c
index 73bef15..649997e 100644
--- a/sound/soc/samsung/smdk_wm8580pcm.c
+++ b/sound/soc/samsung/smdk_wm8580pcm.c
@@ -153,7 +153,7 @@ static struct snd_soc_card smdk_pcm = {
  * is absent (or not connected), so we connect EXT_VOICE_CLK(OSC4),
  * 2.0484Mhz, directly with MCLK both Codec and SoC.
  */
-static int __devinit snd_smdk_probe(struct platform_device *pdev)
+static int snd_smdk_probe(struct platform_device *pdev)
 {
 	int ret = 0;
 
diff --git a/sound/soc/samsung/smdk_wm8994.c b/sound/soc/samsung/smdk_wm8994.c
index 7707d6e..1a01571 100644
--- a/sound/soc/samsung/smdk_wm8994.c
+++ b/sound/soc/samsung/smdk_wm8994.c
@@ -150,7 +150,7 @@ static struct snd_soc_card smdk = {
 };
 
 
-static int __devinit smdk_audio_probe(struct platform_device *pdev)
+static int smdk_audio_probe(struct platform_device *pdev)
 {
 	int ret;
 	struct snd_soc_card *card = &smdk;
diff --git a/sound/soc/samsung/smdk_wm8994pcm.c b/sound/soc/samsung/smdk_wm8994pcm.c
index 8bec27e..84d8f94 100644
--- a/sound/soc/samsung/smdk_wm8994pcm.c
+++ b/sound/soc/samsung/smdk_wm8994pcm.c
@@ -129,7 +129,7 @@ static struct snd_soc_card smdk_pcm = {
 	.num_links = 1,
 };
 
-static int __devinit snd_smdk_probe(struct platform_device *pdev)
+static int snd_smdk_probe(struct platform_device *pdev)
 {
 	int ret = 0;
 
diff --git a/sound/soc/samsung/spdif.c b/sound/soc/samsung/spdif.c
index 9275a03..5612ea8 100644
--- a/sound/soc/samsung/spdif.c
+++ b/sound/soc/samsung/spdif.c
@@ -357,7 +357,7 @@ static struct snd_soc_dai_driver samsung_spdif_dai = {
 	.resume = spdif_resume,
 };
 
-static __devinit int spdif_probe(struct platform_device *pdev)
+static int spdif_probe(struct platform_device *pdev)
 {
 	struct s3c_audio_pdata *spdif_pdata;
 	struct resource *mem_res, *dma_res;
diff --git a/sound/soc/samsung/speyside.c b/sound/soc/samsung/speyside.c
index 173f47c..01bad86 100644
--- a/sound/soc/samsung/speyside.c
+++ b/sound/soc/samsung/speyside.c
@@ -320,7 +320,7 @@ static struct snd_soc_card speyside = {
 	.late_probe = speyside_late_probe,
 };
 
-static __devinit int speyside_probe(struct platform_device *pdev)
+static int speyside_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &speyside;
 	int ret;
diff --git a/sound/soc/samsung/tobermory.c b/sound/soc/samsung/tobermory.c
index da7ce64..01d474c 100644
--- a/sound/soc/samsung/tobermory.c
+++ b/sound/soc/samsung/tobermory.c
@@ -214,7 +214,7 @@ static struct snd_soc_card tobermory = {
 	.late_probe = tobermory_late_probe,
 };
 
-static __devinit int tobermory_probe(struct platform_device *pdev)
+static int tobermory_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &tobermory;
 	int ret;
diff --git a/sound/soc/sh/dma-sh7760.c b/sound/soc/sh/dma-sh7760.c
index 7a50c2a..9b06724 100644
--- a/sound/soc/sh/dma-sh7760.c
+++ b/sound/soc/sh/dma-sh7760.c
@@ -348,7 +348,7 @@ static struct snd_soc_platform sh7760_soc_platform = {
 	.pcm_free	= camelot_pcm_free,
 };
 
-static int __devinit sh7760_soc_platform_probe(struct platform_device *pdev)
+static int sh7760_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &sh7760_soc_platform);
 }
diff --git a/sound/soc/sh/hac.c b/sound/soc/sh/hac.c
index dd00356..2efdd48 100644
--- a/sound/soc/sh/hac.c
+++ b/sound/soc/sh/hac.c
@@ -310,7 +310,7 @@ static struct snd_soc_dai_driver sh4_hac_dai[] = {
 #endif
 };
 
-static int __devinit hac_soc_platform_probe(struct platform_device *pdev)
+static int hac_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_dais(&pdev->dev, sh4_hac_dai,
 			ARRAY_SIZE(sh4_hac_dai));
diff --git a/sound/soc/sh/siu_dai.c b/sound/soc/sh/siu_dai.c
index 7b1bc77..694cb96 100644
--- a/sound/soc/sh/siu_dai.c
+++ b/sound/soc/sh/siu_dai.c
@@ -726,7 +726,7 @@ static struct snd_soc_dai_driver siu_i2s_dai = {
 	.ops = &siu_dai_ops,
 };
 
-static int __devinit siu_probe(struct platform_device *pdev)
+static int siu_probe(struct platform_device *pdev)
 {
 	const struct firmware *fw_entry;
 	struct resource *res, *region;
diff --git a/sound/soc/sh/ssi.c b/sound/soc/sh/ssi.c
index 768de1c..1b26656 100644
--- a/sound/soc/sh/ssi.c
+++ b/sound/soc/sh/ssi.c
@@ -379,7 +379,7 @@ static struct snd_soc_dai_driver sh4_ssi_dai[] = {
 #endif
 };
 
-static int __devinit sh4_soc_dai_probe(struct platform_device *pdev)
+static int sh4_soc_dai_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_dais(&pdev->dev, sh4_ssi_dai,
 			ARRAY_SIZE(sh4_ssi_dai));
diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c
index d9a3ac9..813689d 100644
--- a/sound/soc/soc-utils.c
+++ b/sound/soc/soc-utils.c
@@ -94,7 +94,7 @@ static struct snd_soc_dai_driver dummy_dai = {
 	.name = "snd-soc-dummy-dai",
 };
 
-static __devinit int snd_soc_dummy_probe(struct platform_device *pdev)
+static int snd_soc_dummy_probe(struct platform_device *pdev)
 {
 	int ret;
 
diff --git a/sound/soc/spear/spear_pcm.c b/sound/soc/spear/spear_pcm.c
index 9f8f5cd..29c23d3 100644
--- a/sound/soc/spear/spear_pcm.c
+++ b/sound/soc/spear/spear_pcm.c
@@ -184,7 +184,7 @@ struct snd_soc_platform_driver spear_soc_platform = {
 	.pcm_free	=	spear_pcm_free,
 };
 
-static int __devinit spear_soc_platform_probe(struct platform_device *pdev)
+static int spear_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &spear_soc_platform);
 }
diff --git a/sound/soc/tegra/tegra20_das.c b/sound/soc/tegra/tegra20_das.c
index 45c67e0..b0c29eb 100644
--- a/sound/soc/tegra/tegra20_das.c
+++ b/sound/soc/tegra/tegra20_das.c
@@ -131,7 +131,7 @@ static const struct regmap_config tegra20_das_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static int __devinit tegra20_das_probe(struct platform_device *pdev)
+static int tegra20_das_probe(struct platform_device *pdev)
 {
 	struct resource *res, *region;
 	void __iomem *regs;
diff --git a/sound/soc/tegra/tegra20_i2s.c b/sound/soc/tegra/tegra20_i2s.c
index 1892a0c..256607f 100644
--- a/sound/soc/tegra/tegra20_i2s.c
+++ b/sound/soc/tegra/tegra20_i2s.c
@@ -331,7 +331,7 @@ static const struct regmap_config tegra20_i2s_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static __devinit int tegra20_i2s_platform_probe(struct platform_device *pdev)
+static int tegra20_i2s_platform_probe(struct platform_device *pdev)
 {
 	struct tegra20_i2s *i2s;
 	struct resource *mem, *memregion, *dmareq;
diff --git a/sound/soc/tegra/tegra20_spdif.c b/sound/soc/tegra/tegra20_spdif.c
index ee04bae..8df9ab0 100644
--- a/sound/soc/tegra/tegra20_spdif.c
+++ b/sound/soc/tegra/tegra20_spdif.c
@@ -257,7 +257,7 @@ static const struct regmap_config tegra20_spdif_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static __devinit int tegra20_spdif_platform_probe(struct platform_device *pdev)
+static int tegra20_spdif_platform_probe(struct platform_device *pdev)
 {
 	struct tegra20_spdif *spdif;
 	struct resource *mem, *memregion, *dmareq;
diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c
index b167b1f..ed812d2 100644
--- a/sound/soc/tegra/tegra30_ahub.c
+++ b/sound/soc/tegra/tegra30_ahub.c
@@ -433,7 +433,7 @@ static const struct regmap_config tegra30_ahub_ahub_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static int __devinit tegra30_ahub_probe(struct platform_device *pdev)
+static int tegra30_ahub_probe(struct platform_device *pdev)
 {
 	struct clk *clk;
 	int i;
diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c
index eb28f27..af2c187 100644
--- a/sound/soc/tegra/tegra30_i2s.c
+++ b/sound/soc/tegra/tegra30_i2s.c
@@ -391,7 +391,7 @@ static const struct regmap_config tegra30_i2s_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static __devinit int tegra30_i2s_platform_probe(struct platform_device *pdev)
+static int tegra30_i2s_platform_probe(struct platform_device *pdev)
 {
 	struct tegra30_i2s *i2s;
 	u32 cif_ids[2];
diff --git a/sound/soc/tegra/tegra_alc5632.c b/sound/soc/tegra/tegra_alc5632.c
index 2ccffdb..bf40691 100644
--- a/sound/soc/tegra/tegra_alc5632.c
+++ b/sound/soc/tegra/tegra_alc5632.c
@@ -150,7 +150,7 @@ static struct snd_soc_card snd_soc_tegra_alc5632 = {
 	.fully_routed = true,
 };
 
-static __devinit int tegra_alc5632_probe(struct platform_device *pdev)
+static int tegra_alc5632_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct snd_soc_card *card = &snd_soc_tegra_alc5632;
diff --git a/sound/soc/tegra/tegra_pcm.c b/sound/soc/tegra/tegra_pcm.c
index e187339..4061984 100644
--- a/sound/soc/tegra/tegra_pcm.c
+++ b/sound/soc/tegra/tegra_pcm.c
@@ -253,7 +253,7 @@ static struct snd_soc_platform_driver tegra_pcm_platform = {
 	.pcm_free	= tegra_pcm_free,
 };
 
-int __devinit tegra_pcm_platform_register(struct device *dev)
+int tegra_pcm_platform_register(struct device *dev)
 {
 	return snd_soc_register_platform(dev, &tegra_pcm_platform);
 }
diff --git a/sound/soc/tegra/tegra_wm8753.c b/sound/soc/tegra/tegra_wm8753.c
index 7512884..f5ea8a9 100644
--- a/sound/soc/tegra/tegra_wm8753.c
+++ b/sound/soc/tegra/tegra_wm8753.c
@@ -122,7 +122,7 @@ static struct snd_soc_card snd_soc_tegra_wm8753 = {
 	.fully_routed = true,
 };
 
-static __devinit int tegra_wm8753_driver_probe(struct platform_device *pdev)
+static int tegra_wm8753_driver_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &snd_soc_tegra_wm8753;
 	struct tegra_wm8753 *machine;
diff --git a/sound/soc/tegra/tegra_wm8903.c b/sound/soc/tegra/tegra_wm8903.c
index a583a6b..fa838d3 100644
--- a/sound/soc/tegra/tegra_wm8903.c
+++ b/sound/soc/tegra/tegra_wm8903.c
@@ -252,7 +252,7 @@ static struct snd_soc_card snd_soc_tegra_wm8903 = {
 	.fully_routed = true,
 };
 
-static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev)
+static int tegra_wm8903_driver_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct snd_soc_card *card = &snd_soc_tegra_wm8903;
diff --git a/sound/soc/tegra/trimslice.c b/sound/soc/tegra/trimslice.c
index 8173551..5f98970 100644
--- a/sound/soc/tegra/trimslice.c
+++ b/sound/soc/tegra/trimslice.c
@@ -120,7 +120,7 @@ static struct snd_soc_card snd_soc_trimslice = {
 	.fully_routed = true,
 };
 
-static __devinit int tegra_snd_trimslice_probe(struct platform_device *pdev)
+static int tegra_snd_trimslice_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &snd_soc_trimslice;
 	struct tegra_trimslice *trimslice;
diff --git a/sound/soc/txx9/txx9aclc-ac97.c b/sound/soc/txx9/txx9aclc-ac97.c
index e3dd45e..4855398 100644
--- a/sound/soc/txx9/txx9aclc-ac97.c
+++ b/sound/soc/txx9/txx9aclc-ac97.c
@@ -170,7 +170,7 @@ static struct snd_soc_dai_driver txx9aclc_ac97_dai = {
 	},
 };
 
-static int __devinit txx9aclc_ac97_dev_probe(struct platform_device *pdev)
+static int txx9aclc_ac97_dev_probe(struct platform_device *pdev)
 {
 	struct txx9aclc_plat_drvdata *drvdata;
 	struct resource *r;
diff --git a/sound/soc/txx9/txx9aclc.c b/sound/soc/txx9/txx9aclc.c
index 856a2cf..bdb8165 100644
--- a/sound/soc/txx9/txx9aclc.c
+++ b/sound/soc/txx9/txx9aclc.c
@@ -417,7 +417,7 @@ static struct snd_soc_platform_driver txx9aclc_soc_platform = {
 	.pcm_free	= txx9aclc_pcm_free_dma_buffers,
 };
 
-static int __devinit txx9aclc_soc_platform_probe(struct platform_device *pdev)
+static int txx9aclc_soc_platform_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_platform(&pdev->dev, &txx9aclc_soc_platform);
 }
diff --git a/sound/soc/ux500/mop500.c b/sound/soc/ux500/mop500.c
index c964d60..c04c927 100644
--- a/sound/soc/ux500/mop500.c
+++ b/sound/soc/ux500/mop500.c
@@ -71,7 +71,7 @@ static void mop500_of_node_put(void)
 	}
 }
 
-static int __devinit mop500_of_probe(struct platform_device *pdev,
+static int mop500_of_probe(struct platform_device *pdev,
 				struct device_node *np)
 {
 	struct device_node *codec_np, *msp_np[2];
@@ -99,7 +99,7 @@ static int __devinit mop500_of_probe(struct platform_device *pdev,
 	return 0;
 }
 
-static int __devinit mop500_probe(struct platform_device *pdev)
+static int mop500_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	int ret;
diff --git a/sound/soc/ux500/ux500_msp_dai.c b/sound/soc/ux500/ux500_msp_dai.c
index 74bb3c0..5e9fc81 100644
--- a/sound/soc/ux500/ux500_msp_dai.c
+++ b/sound/soc/ux500/ux500_msp_dai.c
@@ -767,7 +767,7 @@ static struct snd_soc_dai_driver ux500_msp_dai_drv[UX500_NBR_OF_DAI] = {
 	},
 };
 
-static int __devinit ux500_msp_drv_probe(struct platform_device *pdev)
+static int ux500_msp_drv_probe(struct platform_device *pdev)
 {
 	struct ux500_msp_i2s_drvdata *drvdata;
 	int ret = 0;
diff --git a/sound/soc/ux500/ux500_pcm.c b/sound/soc/ux500/ux500_pcm.c
index b703532..9703b2d 100644
--- a/sound/soc/ux500/ux500_pcm.c
+++ b/sound/soc/ux500/ux500_pcm.c
@@ -296,7 +296,7 @@ static int __devexit ux500_pcm_drv_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devinit ux500_pcm_drv_remove(struct platform_device *pdev)
+static int ux500_pcm_drv_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 
diff --git a/sound/sparc/amd7930.c b/sound/sparc/amd7930.c
index 5701787..5809a94 100644
--- a/sound/sparc/amd7930.c
+++ b/sound/sparc/amd7930.c
@@ -755,7 +755,7 @@ static struct snd_pcm_ops snd_amd7930_capture_ops = {
 	.pointer	=	snd_amd7930_capture_pointer,
 };
 
-static int __devinit snd_amd7930_pcm(struct snd_amd7930 *amd)
+static int snd_amd7930_pcm(struct snd_amd7930 *amd)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -884,7 +884,7 @@ static struct snd_kcontrol_new amd7930_controls[] __devinitdata = {
 	},
 };
 
-static int __devinit snd_amd7930_mixer(struct snd_amd7930 *amd)
+static int snd_amd7930_mixer(struct snd_amd7930 *amd)
 {
 	struct snd_card *card;
 	int idx, err;
@@ -933,7 +933,7 @@ static struct snd_device_ops snd_amd7930_dev_ops = {
 	.dev_free	=	snd_amd7930_dev_free,
 };
 
-static int __devinit snd_amd7930_create(struct snd_card *card,
+static int snd_amd7930_create(struct snd_card *card,
 					struct platform_device *op,
 					int irq, int dev,
 					struct snd_amd7930 **ramd)
@@ -1002,7 +1002,7 @@ static int __devinit snd_amd7930_create(struct snd_card *card,
 	return 0;
 }
 
-static int __devinit amd7930_sbus_probe(struct platform_device *op)
+static int amd7930_sbus_probe(struct platform_device *op)
 {
 	struct resource *rp = &op->resource[0];
 	static int dev_num;
diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index 344eb3f..102ad1e 100644
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -702,7 +702,7 @@ static int snd_cs4231_timer_stop(struct snd_timer *timer)
 	return 0;
 }
 
-static void __devinit snd_cs4231_init(struct snd_cs4231 *chip)
+static void snd_cs4231_init(struct snd_cs4231 *chip)
 {
 	unsigned long flags;
 
@@ -1019,7 +1019,7 @@ static snd_pcm_uframes_t snd_cs4231_capture_pointer(
 	return bytes_to_frames(substream->runtime, ptr);
 }
 
-static int __devinit snd_cs4231_probe(struct snd_cs4231 *chip)
+static int snd_cs4231_probe(struct snd_cs4231 *chip)
 {
 	unsigned long flags;
 	int i;
@@ -1218,7 +1218,7 @@ static struct snd_pcm_ops snd_cs4231_capture_ops = {
 	.pointer	=	snd_cs4231_capture_pointer,
 };
 
-static int __devinit snd_cs4231_pcm(struct snd_card *card)
+static int snd_cs4231_pcm(struct snd_card *card)
 {
 	struct snd_cs4231 *chip = card->private_data;
 	struct snd_pcm *pcm;
@@ -1247,7 +1247,7 @@ static int __devinit snd_cs4231_pcm(struct snd_card *card)
 	return 0;
 }
 
-static int __devinit snd_cs4231_timer(struct snd_card *card)
+static int snd_cs4231_timer(struct snd_card *card)
 {
 	struct snd_cs4231 *chip = card->private_data;
 	struct snd_timer *timer;
@@ -1537,7 +1537,7 @@ CS4231_SINGLE("Line Out Switch", 0, CS4231_PIN_CTRL, 6, 1, 1),
 CS4231_SINGLE("Headphone Out Switch", 0, CS4231_PIN_CTRL, 7, 1, 1)
 };
 
-static int __devinit snd_cs4231_mixer(struct snd_card *card)
+static int snd_cs4231_mixer(struct snd_card *card)
 {
 	struct snd_cs4231 *chip = card->private_data;
 	int err, idx;
@@ -1558,7 +1558,7 @@ static int __devinit snd_cs4231_mixer(struct snd_card *card)
 
 static int dev;
 
-static int __devinit cs4231_attach_begin(struct snd_card **rcard)
+static int cs4231_attach_begin(struct snd_card **rcard)
 {
 	struct snd_card *card;
 	struct snd_cs4231 *chip;
@@ -1589,7 +1589,7 @@ static int __devinit cs4231_attach_begin(struct snd_card **rcard)
 	return 0;
 }
 
-static int __devinit cs4231_attach_finish(struct snd_card *card)
+static int cs4231_attach_finish(struct snd_card *card)
 {
 	struct snd_cs4231 *chip = card->private_data;
 	int err;
@@ -1793,7 +1793,7 @@ static struct snd_device_ops snd_cs4231_sbus_dev_ops = {
 	.dev_free	=	snd_cs4231_sbus_dev_free,
 };
 
-static int __devinit snd_cs4231_sbus_create(struct snd_card *card,
+static int snd_cs4231_sbus_create(struct snd_card *card,
 					    struct platform_device *op,
 					    int dev)
 {
@@ -1856,7 +1856,7 @@ static int __devinit snd_cs4231_sbus_create(struct snd_card *card,
 	return 0;
 }
 
-static int __devinit cs4231_sbus_probe(struct platform_device *op)
+static int cs4231_sbus_probe(struct platform_device *op)
 {
 	struct resource *rp = &op->resource[0];
 	struct snd_card *card;
@@ -1959,7 +1959,7 @@ static struct snd_device_ops snd_cs4231_ebus_dev_ops = {
 	.dev_free	=	snd_cs4231_ebus_dev_free,
 };
 
-static int __devinit snd_cs4231_ebus_create(struct snd_card *card,
+static int snd_cs4231_ebus_create(struct snd_card *card,
 					    struct platform_device *op,
 					    int dev)
 {
@@ -2048,7 +2048,7 @@ static int __devinit snd_cs4231_ebus_create(struct snd_card *card,
 	return 0;
 }
 
-static int __devinit cs4231_ebus_probe(struct platform_device *op)
+static int cs4231_ebus_probe(struct platform_device *op)
 {
 	struct snd_card *card;
 	int err;
@@ -2072,7 +2072,7 @@ static int __devinit cs4231_ebus_probe(struct platform_device *op)
 }
 #endif
 
-static int __devinit cs4231_probe(struct platform_device *op)
+static int cs4231_probe(struct platform_device *op)
 {
 #ifdef EBUS_SUPPORT
 	if (!strcmp(op->dev.of_node->parent->name, "ebus"))
diff --git a/sound/sparc/dbri.c b/sound/sparc/dbri.c
index 55c80c4..8763ba0 100644
--- a/sound/sparc/dbri.c
+++ b/sound/sparc/dbri.c
@@ -745,7 +745,7 @@ static void dbri_reset(struct snd_dbri *dbri)
 }
 
 /* Lock must not be held before calling this */
-static void __devinit dbri_initialize(struct snd_dbri *dbri)
+static void dbri_initialize(struct snd_dbri *dbri)
 {
 	s32 *cmd;
 	u32 dma_addr;
@@ -1305,7 +1305,7 @@ to the DBRI via the CHI interface and few of the DBRI's PIO pins.
  * Lock must not be held before calling it.
 
 */
-static __devinit void cs4215_setup_pipes(struct snd_dbri *dbri)
+static void cs4215_setup_pipes(struct snd_dbri *dbri)
 {
 	unsigned long flags;
 
@@ -1338,7 +1338,7 @@ static __devinit void cs4215_setup_pipes(struct snd_dbri *dbri)
 	dbri_cmdwait(dbri);
 }
 
-static __devinit int cs4215_init_data(struct cs4215 *mm)
+static int cs4215_init_data(struct cs4215 *mm)
 {
 	/*
 	 * No action, memory resetting only.
@@ -1630,7 +1630,7 @@ static int cs4215_prepare(struct snd_dbri *dbri, unsigned int rate,
 /*
  *
  */
-static __devinit int cs4215_init(struct snd_dbri *dbri)
+static int cs4215_init(struct snd_dbri *dbri)
 {
 	u32 reg2 = sbus_readl(dbri->regs + REG2);
 	dprintk(D_MM, "cs4215_init: reg2=0x%x\n", reg2);
@@ -2217,7 +2217,7 @@ static struct snd_pcm_ops snd_dbri_ops = {
 	.pointer = snd_dbri_pointer,
 };
 
-static int __devinit snd_dbri_pcm(struct snd_card *card)
+static int snd_dbri_pcm(struct snd_card *card)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -2436,7 +2436,7 @@ static struct snd_kcontrol_new dbri_controls[] __devinitdata = {
 	CS4215_SINGLE("Mic boost", 4, 4, 1, 1)
 };
 
-static int __devinit snd_dbri_mixer(struct snd_card *card)
+static int snd_dbri_mixer(struct snd_card *card)
 {
 	int idx, err;
 	struct snd_dbri *dbri;
@@ -2500,7 +2500,7 @@ static void dbri_debug_read(struct snd_info_entry *entry,
 }
 #endif
 
-static void __devinit snd_dbri_proc(struct snd_card *card)
+static void snd_dbri_proc(struct snd_card *card)
 {
 	struct snd_dbri *dbri = card->private_data;
 	struct snd_info_entry *entry;
@@ -2523,7 +2523,7 @@ static void __devinit snd_dbri_proc(struct snd_card *card)
 */
 static void snd_dbri_free(struct snd_dbri *dbri);
 
-static int __devinit snd_dbri_create(struct snd_card *card,
+static int snd_dbri_create(struct snd_card *card,
 				     struct platform_device *op,
 				     int irq, int dev)
 {
@@ -2593,7 +2593,7 @@ static void snd_dbri_free(struct snd_dbri *dbri)
 				  (void *)dbri->dma, dbri->dma_dvma);
 }
 
-static int __devinit dbri_probe(struct platform_device *op)
+static int dbri_probe(struct platform_device *op)
 {
 	struct snd_dbri *dbri;
 	struct resource *rp;
diff --git a/sound/spi/at73c213.c b/sound/spi/at73c213.c
index a887ef7..7f39fa2 100644
--- a/sound/spi/at73c213.c
+++ b/sound/spi/at73c213.c
@@ -330,7 +330,7 @@ static struct snd_pcm_ops at73c213_playback_ops = {
 	.pointer	= snd_at73c213_pcm_pointer,
 };
 
-static int __devinit snd_at73c213_pcm_new(struct snd_at73c213 *chip, int device)
+static int snd_at73c213_pcm_new(struct snd_at73c213 *chip, int device)
 {
 	struct snd_pcm *pcm;
 	int retval;
@@ -709,7 +709,7 @@ AT73C213_MONO_SWITCH("Aux Capture Switch", 0, DAC_CTRL, DAC_CTRL_ONAUXIN,
 AT73C213_MONO_SWITCH("Line Capture Switch", 0, DAC_CTRL, 0, 0x03, 0),
 };
 
-static int __devinit snd_at73c213_mixer(struct snd_at73c213 *chip)
+static int snd_at73c213_mixer(struct snd_at73c213 *chip)
 {
 	struct snd_card *card;
 	int errval, idx;
@@ -744,7 +744,7 @@ cleanup:
 /*
  * Device functions
  */
-static int __devinit snd_at73c213_ssc_init(struct snd_at73c213 *chip)
+static int snd_at73c213_ssc_init(struct snd_at73c213 *chip)
 {
 	/*
 	 * Continuous clock output.
@@ -774,7 +774,7 @@ static int __devinit snd_at73c213_ssc_init(struct snd_at73c213 *chip)
 	return 0;
 }
 
-static int __devinit snd_at73c213_chip_init(struct snd_at73c213 *chip)
+static int snd_at73c213_chip_init(struct snd_at73c213 *chip)
 {
 	int retval;
 	unsigned char dac_ctrl = 0;
@@ -879,7 +879,7 @@ static int snd_at73c213_dev_free(struct snd_device *device)
 	return 0;
 }
 
-static int __devinit snd_at73c213_dev_init(struct snd_card *card,
+static int snd_at73c213_dev_init(struct snd_card *card,
 					 struct spi_device *spi)
 {
 	static struct snd_device_ops ops = {
@@ -940,7 +940,7 @@ out:
 	return retval;
 }
 
-static int __devinit snd_at73c213_probe(struct spi_device *spi)
+static int snd_at73c213_probe(struct spi_device *spi)
 {
 	struct snd_card			*card;
 	struct snd_at73c213		*chip;
-- 
1.8.0

From - Thu Nov 08 21:08:45 2018
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From: Bill Pemberton <wfp5p@virginia.edu>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.alsa.devel,gmane.linux.kernel.samsung-soc,gmane.linux.ports.arm.omap,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.hardware.blackfin.kernel.devel
Subject: [PATCH 491/493] sound: remove use of __devexit
Date: Mon, 19 Nov 2012 13:27:20 -0500
Lines: 5017
Approved: news@gmane.org
Message-ID: <1353349642-3677-491-git-send-email-wfp5p@virginia.edu>
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NNTP-Posting-Date: Mon, 19 Nov 2012 21:59:55 +0000 (UTC)
Cc: alsa-devel@alsa-project.org, Philipp Zabel <philipp.zabel@gmail.com>,
 Takashi Iwai <tiwai@suse.de>, Clemens Ladisch <clemens@ladisch.de>,
 Jaroslav Kysela <perex@perex.cz>, Peter Ujfalusi <peter.ujfalusi@ti.com>,
 M R Swami Reddy <mr.swami.reddy@ti.com>,
 device-drivers-devel@blackfin.uclinux.org, Kukjin Kim <kgene.kim@samsung.com>,
 Russell King <linux@arm.linux.org.uk>, patches@opensource.wolfsonmicro.com,
 Vishwas A Deshpande <vishwas.a.deshpande@ti.com>,
 Paul Parsons <lost.distance@yahoo.com>,
 Thibaut Varene <T-Bone@parisc-linux.org>,
 Haojian Zhuang <haojian.zhuang@gmail.com>, linux-samsung-soc@vger.kernel.org,
 Ben Dooks <ben-linux@fluff.org>, linux-omap@vger.kernel.org,
 linux-arm-kernel@lists.infradead.org, Jaya Kumar <jayakumar.alsa@gmail.com>,
 Eric Miao <eric.y.miao@gmail.com>, linux-parisc@vger.kernel.org,
 uclinux-dist-devel@blackfin.uclinux.org, linuxppc-dev@lists.oz
To: gregkh@linuxfoundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ppc.embedded/54759>

CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Russell King <linux@arm.linux.org.uk> 
Cc: Jaroslav Kysela <perex@perex.cz> 
Cc: Takashi Iwai <tiwai@suse.de> 
Cc: Eric Miao <eric.y.miao@gmail.com> 
Cc: Haojian Zhuang <haojian.zhuang@gmail.com> 
Cc: Clemens Ladisch <clemens@ladisch.de> 
Cc: Thibaut Varene <T-Bone@parisc-linux.org> 
Cc: Jaya Kumar <jayakumar.alsa@gmail.com> 
Cc: M R Swami Reddy <mr.swami.reddy@ti.com> 
Cc: Vishwas A Deshpande <vishwas.a.deshpande@ti.com> 
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> 
Cc: Jarkko Nikula <jarkko.nikula@bitmer.com> 
Cc: Philipp Zabel <philipp.zabel@gmail.com> 
Cc: Paul Parsons <lost.distance@yahoo.com> 
Cc: Ben Dooks <ben-linux@fluff.org> 
Cc: Kukjin Kim <kgene.kim@samsung.com> 
Cc: alsa-devel@alsa-project.org 
Cc: linux-arm-kernel@lists.infradead.org 
Cc: linux-parisc@vger.kernel.org 
Cc: uclinux-dist-devel@blackfin.uclinux.org 
Cc: device-drivers-devel@blackfin.uclinux.org 
Cc: patches@opensource.wolfsonmicro.com 
Cc: linuxppc-dev@lists.ozlabs.org 
Cc: linux-omap@vger.kernel.org 
Cc: linux-samsung-soc@vger.kernel.org 
---
 sound/arm/aaci.c                         | 2 +-
 sound/arm/pxa2xx-ac97.c                  | 2 +-
 sound/atmel/abdac.c                      | 2 +-
 sound/atmel/ac97c.c                      | 2 +-
 sound/drivers/aloop.c                    | 2 +-
 sound/drivers/dummy.c                    | 2 +-
 sound/drivers/mpu401/mpu401.c            | 4 ++--
 sound/drivers/mtpav.c                    | 2 +-
 sound/drivers/mts64.c                    | 2 +-
 sound/drivers/pcsp/pcsp.c                | 4 ++--
 sound/drivers/portman2x4.c               | 2 +-
 sound/drivers/serial-u16550.c            | 2 +-
 sound/drivers/virmidi.c                  | 2 +-
 sound/firewire/speakers.c                | 2 +-
 sound/isa/ad1816a/ad1816a.c              | 2 +-
 sound/isa/ad1848/ad1848.c                | 2 +-
 sound/isa/adlib.c                        | 2 +-
 sound/isa/als100.c                       | 2 +-
 sound/isa/azt2320.c                      | 2 +-
 sound/isa/cmi8328.c                      | 2 +-
 sound/isa/cmi8330.c                      | 4 ++--
 sound/isa/cs423x/cs4231.c                | 2 +-
 sound/isa/cs423x/cs4236.c                | 6 +++---
 sound/isa/es1688/es1688.c                | 4 ++--
 sound/isa/es18xx.c                       | 6 +++---
 sound/isa/galaxy/galaxy.c                | 2 +-
 sound/isa/gus/gusclassic.c               | 2 +-
 sound/isa/gus/gusextreme.c               | 2 +-
 sound/isa/gus/gusmax.c                   | 2 +-
 sound/isa/gus/interwave.c                | 4 ++--
 sound/isa/msnd/msnd_pinnacle.c           | 6 +++---
 sound/isa/opl3sa2.c                      | 6 +++---
 sound/isa/opti9xx/miro.c                 | 4 ++--
 sound/isa/opti9xx/opti92x-ad1848.c       | 4 ++--
 sound/isa/sb/jazz16.c                    | 2 +-
 sound/isa/sb/sb16.c                      | 4 ++--
 sound/isa/sb/sb8.c                       | 2 +-
 sound/isa/sc6000.c                       | 2 +-
 sound/isa/sscape.c                       | 4 ++--
 sound/isa/wavefront/wavefront.c          | 4 ++--
 sound/mips/hal2.c                        | 2 +-
 sound/mips/sgio2audio.c                  | 2 +-
 sound/oss/kahlua.c                       | 4 ++--
 sound/parisc/harmony.c                   | 2 +-
 sound/pci/ad1889.c                       | 2 +-
 sound/pci/ali5451/ali5451.c              | 2 +-
 sound/pci/als300.c                       | 2 +-
 sound/pci/als4000.c                      | 2 +-
 sound/pci/asihpi/asihpi.c                | 2 +-
 sound/pci/asihpi/hpioctl.c               | 2 +-
 sound/pci/asihpi/hpioctl.h               | 2 +-
 sound/pci/atiixp.c                       | 2 +-
 sound/pci/atiixp_modem.c                 | 2 +-
 sound/pci/au88x0/au88x0.c                | 2 +-
 sound/pci/aw2/aw2-alsa.c                 | 4 ++--
 sound/pci/azt3328.c                      | 2 +-
 sound/pci/bt87x.c                        | 2 +-
 sound/pci/ca0106/ca0106_main.c           | 2 +-
 sound/pci/cmipci.c                       | 2 +-
 sound/pci/cs4281.c                       | 2 +-
 sound/pci/cs46xx/cs46xx.c                | 2 +-
 sound/pci/cs5530.c                       | 2 +-
 sound/pci/cs5535audio/cs5535audio.c      | 2 +-
 sound/pci/cs5535audio/cs5535audio.h      | 2 +-
 sound/pci/cs5535audio/cs5535audio_olpc.c | 2 +-
 sound/pci/ctxfi/xfi.c                    | 2 +-
 sound/pci/echoaudio/echoaudio.c          | 2 +-
 sound/pci/emu10k1/emu10k1.c              | 2 +-
 sound/pci/emu10k1/emu10k1x.c             | 2 +-
 sound/pci/ens1370.c                      | 2 +-
 sound/pci/es1938.c                       | 2 +-
 sound/pci/es1968.c                       | 2 +-
 sound/pci/fm801.c                        | 2 +-
 sound/pci/hda/hda_intel.c                | 2 +-
 sound/pci/ice1712/ice1712.c              | 2 +-
 sound/pci/ice1712/ice1724.c              | 2 +-
 sound/pci/intel8x0.c                     | 2 +-
 sound/pci/intel8x0m.c                    | 2 +-
 sound/pci/korg1212/korg1212.c            | 2 +-
 sound/pci/lola/lola.c                    | 2 +-
 sound/pci/lx6464es/lx6464es.c            | 2 +-
 sound/pci/maestro3.c                     | 2 +-
 sound/pci/mixart/mixart.c                | 2 +-
 sound/pci/nm256/nm256.c                  | 2 +-
 sound/pci/pcxhr/pcxhr.c                  | 2 +-
 sound/pci/riptide/riptide.c              | 4 ++--
 sound/pci/rme32.c                        | 2 +-
 sound/pci/rme96.c                        | 2 +-
 sound/pci/rme9652/hdsp.c                 | 2 +-
 sound/pci/rme9652/hdspm.c                | 2 +-
 sound/pci/rme9652/rme9652.c              | 2 +-
 sound/pci/sis7019.c                      | 2 +-
 sound/pci/sonicvibes.c                   | 2 +-
 sound/pci/trident/trident.c              | 2 +-
 sound/pci/via82xx.c                      | 2 +-
 sound/pci/via82xx_modem.c                | 2 +-
 sound/pci/vx222/vx222.c                  | 2 +-
 sound/pci/ymfpci/ymfpci.c                | 2 +-
 sound/ppc/powermac.c                     | 2 +-
 sound/sh/aica.c                          | 2 +-
 sound/soc/atmel/atmel-pcm.c              | 2 +-
 sound/soc/atmel/atmel_ssc_dai.c          | 2 +-
 sound/soc/atmel/sam9g20_wm8731.c         | 2 +-
 sound/soc/au1x/ac97c.c                   | 2 +-
 sound/soc/au1x/db1000.c                  | 2 +-
 sound/soc/au1x/db1200.c                  | 2 +-
 sound/soc/au1x/dbdma2.c                  | 2 +-
 sound/soc/au1x/dma.c                     | 2 +-
 sound/soc/au1x/i2sc.c                    | 2 +-
 sound/soc/au1x/psc-ac97.c                | 2 +-
 sound/soc/au1x/psc-i2s.c                 | 2 +-
 sound/soc/blackfin/bf5xx-ac97-pcm.c      | 2 +-
 sound/soc/blackfin/bf5xx-ac97.c          | 2 +-
 sound/soc/blackfin/bf5xx-ad1836.c        | 2 +-
 sound/soc/blackfin/bf5xx-i2s-pcm.c       | 2 +-
 sound/soc/blackfin/bf5xx-i2s.c           | 2 +-
 sound/soc/blackfin/bf5xx-tdm-pcm.c       | 2 +-
 sound/soc/blackfin/bf5xx-tdm.c           | 2 +-
 sound/soc/blackfin/bf6xx-i2s.c           | 2 +-
 sound/soc/blackfin/bfin-eval-adau1373.c  | 2 +-
 sound/soc/blackfin/bfin-eval-adau1701.c  | 2 +-
 sound/soc/blackfin/bfin-eval-adav80x.c   | 2 +-
 sound/soc/cirrus/edb93xx.c               | 2 +-
 sound/soc/cirrus/ep93xx-ac97.c           | 2 +-
 sound/soc/cirrus/ep93xx-i2s.c            | 2 +-
 sound/soc/cirrus/ep93xx-pcm.c            | 2 +-
 sound/soc/cirrus/simone.c                | 2 +-
 sound/soc/cirrus/snappercl15.c           | 2 +-
 sound/soc/codecs/88pm860x-codec.c        | 2 +-
 sound/soc/codecs/ab8500-codec.c          | 2 +-
 sound/soc/codecs/ac97.c                  | 2 +-
 sound/soc/codecs/ad1836.c                | 2 +-
 sound/soc/codecs/ad193x.c                | 4 ++--
 sound/soc/codecs/ad1980.c                | 2 +-
 sound/soc/codecs/ad73311.c               | 2 +-
 sound/soc/codecs/adau1373.c              | 2 +-
 sound/soc/codecs/adau1701.c              | 2 +-
 sound/soc/codecs/adav80x.c               | 6 +++---
 sound/soc/codecs/ads117x.c               | 2 +-
 sound/soc/codecs/ak4104.c                | 2 +-
 sound/soc/codecs/ak4535.c                | 2 +-
 sound/soc/codecs/ak4641.c                | 2 +-
 sound/soc/codecs/ak4642.c                | 2 +-
 sound/soc/codecs/ak4671.c                | 2 +-
 sound/soc/codecs/alc5623.c               | 2 +-
 sound/soc/codecs/alc5632.c               | 2 +-
 sound/soc/codecs/cs4271.c                | 4 ++--
 sound/soc/codecs/cs42l73.c               | 2 +-
 sound/soc/codecs/da7210.c                | 4 ++--
 sound/soc/codecs/da732x.c                | 2 +-
 sound/soc/codecs/da9055.c                | 2 +-
 sound/soc/codecs/dfbmcs320.c             | 2 +-
 sound/soc/codecs/dmic.c                  | 2 +-
 sound/soc/codecs/isabelle.c              | 2 +-
 sound/soc/codecs/jz4740.c                | 2 +-
 sound/soc/codecs/lm4857.c                | 2 +-
 sound/soc/codecs/lm49453.c               | 2 +-
 sound/soc/codecs/max9768.c               | 2 +-
 sound/soc/codecs/max98088.c              | 2 +-
 sound/soc/codecs/max98095.c              | 2 +-
 sound/soc/codecs/max9850.c               | 2 +-
 sound/soc/codecs/max9877.c               | 2 +-
 sound/soc/codecs/ml26124.c               | 2 +-
 sound/soc/codecs/omap-hdmi.c             | 2 +-
 sound/soc/codecs/pcm3008.c               | 2 +-
 sound/soc/codecs/rt5631.c                | 2 +-
 sound/soc/codecs/sgtl5000.c              | 2 +-
 sound/soc/codecs/si476x.c                | 2 +-
 sound/soc/codecs/sn95031.c               | 2 +-
 sound/soc/codecs/ssm2602.c               | 4 ++--
 sound/soc/codecs/sta32x.c                | 2 +-
 sound/soc/codecs/sta529.c                | 2 +-
 sound/soc/codecs/stac9766.c              | 2 +-
 sound/soc/codecs/tlv320aic32x4.c         | 2 +-
 sound/soc/codecs/tlv320dac33.c           | 2 +-
 sound/soc/codecs/tpa6130a2.c             | 2 +-
 sound/soc/codecs/twl4030.c               | 2 +-
 sound/soc/codecs/twl6040.c               | 2 +-
 sound/soc/codecs/uda134x.c               | 2 +-
 sound/soc/codecs/uda1380.c               | 2 +-
 sound/soc/codecs/wl1273.c                | 2 +-
 sound/soc/codecs/wm0010.c                | 2 +-
 sound/soc/codecs/wm1250-ev1.c            | 2 +-
 sound/soc/codecs/wm2000.c                | 2 +-
 sound/soc/codecs/wm2200.c                | 2 +-
 sound/soc/codecs/wm5100.c                | 2 +-
 sound/soc/codecs/wm5102.c                | 2 +-
 sound/soc/codecs/wm5110.c                | 2 +-
 sound/soc/codecs/wm8350.c                | 2 +-
 sound/soc/codecs/wm8400.c                | 2 +-
 sound/soc/codecs/wm8510.c                | 4 ++--
 sound/soc/codecs/wm8523.c                | 2 +-
 sound/soc/codecs/wm8711.c                | 4 ++--
 sound/soc/codecs/wm8727.c                | 2 +-
 sound/soc/codecs/wm8728.c                | 4 ++--
 sound/soc/codecs/wm8731.c                | 4 ++--
 sound/soc/codecs/wm8737.c                | 4 ++--
 sound/soc/codecs/wm8741.c                | 2 +-
 sound/soc/codecs/wm8750.c                | 4 ++--
 sound/soc/codecs/wm8753.c                | 4 ++--
 sound/soc/codecs/wm8770.c                | 2 +-
 sound/soc/codecs/wm8776.c                | 4 ++--
 sound/soc/codecs/wm8782.c                | 2 +-
 sound/soc/codecs/wm8804.c                | 4 ++--
 sound/soc/codecs/wm8900.c                | 4 ++--
 sound/soc/codecs/wm8903.c                | 2 +-
 sound/soc/codecs/wm8904.c                | 2 +-
 sound/soc/codecs/wm8940.c                | 2 +-
 sound/soc/codecs/wm8955.c                | 2 +-
 sound/soc/codecs/wm8960.c                | 2 +-
 sound/soc/codecs/wm8961.c                | 2 +-
 sound/soc/codecs/wm8962.c                | 2 +-
 sound/soc/codecs/wm8971.c                | 2 +-
 sound/soc/codecs/wm8974.c                | 2 +-
 sound/soc/codecs/wm8978.c                | 2 +-
 sound/soc/codecs/wm8983.c                | 4 ++--
 sound/soc/codecs/wm8985.c                | 4 ++--
 sound/soc/codecs/wm8988.c                | 4 ++--
 sound/soc/codecs/wm8990.c                | 2 +-
 sound/soc/codecs/wm8991.c                | 2 +-
 sound/soc/codecs/wm8993.c                | 2 +-
 sound/soc/codecs/wm8994.c                | 2 +-
 sound/soc/codecs/wm8995.c                | 4 ++--
 sound/soc/codecs/wm8996.c                | 2 +-
 sound/soc/codecs/wm9081.c                | 2 +-
 sound/soc/codecs/wm9090.c                | 2 +-
 sound/soc/codecs/wm9705.c                | 2 +-
 sound/soc/codecs/wm9712.c                | 2 +-
 sound/soc/codecs/wm9713.c                | 2 +-
 sound/soc/fsl/eukrea-tlv320.c            | 2 +-
 sound/soc/fsl/fsl_dma.c                  | 2 +-
 sound/soc/fsl/imx-audmux.c               | 4 ++--
 sound/soc/fsl/imx-mc13783.c              | 2 +-
 sound/soc/fsl/imx-pcm-dma.c              | 2 +-
 sound/soc/fsl/imx-pcm-fiq.c              | 2 +-
 sound/soc/fsl/imx-sgtl5000.c             | 2 +-
 sound/soc/fsl/imx-ssi.c                  | 2 +-
 sound/soc/fsl/mpc5200_psc_ac97.c         | 2 +-
 sound/soc/fsl/mpc5200_psc_i2s.c          | 2 +-
 sound/soc/fsl/mpc8610_hpcd.c             | 2 +-
 sound/soc/fsl/mx27vis-aic32x4.c          | 2 +-
 sound/soc/fsl/p1022_ds.c                 | 2 +-
 sound/soc/fsl/p1022_rdk.c                | 2 +-
 sound/soc/fsl/pcm030-audio-fabric.c      | 2 +-
 sound/soc/jz4740/jz4740-i2s.c            | 2 +-
 sound/soc/jz4740/jz4740-pcm.c            | 2 +-
 sound/soc/jz4740/qi_lb60.c               | 2 +-
 sound/soc/kirkwood/kirkwood-dma.c        | 2 +-
 sound/soc/kirkwood/kirkwood-i2s.c        | 2 +-
 sound/soc/kirkwood/kirkwood-openrd.c     | 2 +-
 sound/soc/kirkwood/kirkwood-t5325.c      | 2 +-
 sound/soc/mid-x86/mfld_machine.c         | 2 +-
 sound/soc/mxs/mxs-pcm.c                  | 2 +-
 sound/soc/mxs/mxs-saif.c                 | 2 +-
 sound/soc/mxs/mxs-sgtl5000.c             | 2 +-
 sound/soc/nuc900/nuc900-ac97.c           | 2 +-
 sound/soc/nuc900/nuc900-pcm.c            | 2 +-
 sound/soc/omap/ams-delta.c               | 2 +-
 sound/soc/omap/mcbsp.c                   | 2 +-
 sound/soc/omap/mcbsp.h                   | 2 +-
 sound/soc/omap/omap-abe-twl6040.c        | 2 +-
 sound/soc/omap/omap-dmic.c               | 2 +-
 sound/soc/omap/omap-hdmi-card.c          | 2 +-
 sound/soc/omap/omap-hdmi.c               | 2 +-
 sound/soc/omap/omap-mcbsp.c              | 2 +-
 sound/soc/omap/omap-mcpdm.c              | 2 +-
 sound/soc/omap/omap-pcm.c                | 2 +-
 sound/soc/omap/omap-twl4030.c            | 2 +-
 sound/soc/pxa/brownstone.c               | 2 +-
 sound/soc/pxa/corgi.c                    | 2 +-
 sound/soc/pxa/e740_wm9705.c              | 2 +-
 sound/soc/pxa/e750_wm9705.c              | 2 +-
 sound/soc/pxa/e800_wm9712.c              | 2 +-
 sound/soc/pxa/hx4700.c                   | 2 +-
 sound/soc/pxa/imote2.c                   | 2 +-
 sound/soc/pxa/mioa701_wm9713.c           | 2 +-
 sound/soc/pxa/mmp-pcm.c                  | 2 +-
 sound/soc/pxa/mmp-sspa.c                 | 2 +-
 sound/soc/pxa/palm27x.c                  | 2 +-
 sound/soc/pxa/poodle.c                   | 2 +-
 sound/soc/pxa/pxa-ssp.c                  | 2 +-
 sound/soc/pxa/pxa2xx-ac97.c              | 2 +-
 sound/soc/pxa/pxa2xx-i2s.c               | 2 +-
 sound/soc/pxa/pxa2xx-pcm.c               | 2 +-
 sound/soc/pxa/tosa.c                     | 2 +-
 sound/soc/pxa/ttc-dkb.c                  | 2 +-
 sound/soc/s6000/s6000-i2s.c              | 2 +-
 sound/soc/s6000/s6000-pcm.c              | 2 +-
 sound/soc/samsung/ac97.c                 | 2 +-
 sound/soc/samsung/bells.c                | 2 +-
 sound/soc/samsung/dma.c                  | 2 +-
 sound/soc/samsung/i2s.c                  | 2 +-
 sound/soc/samsung/idma.c                 | 2 +-
 sound/soc/samsung/littlemill.c           | 2 +-
 sound/soc/samsung/lowland.c              | 2 +-
 sound/soc/samsung/pcm.c                  | 2 +-
 sound/soc/samsung/s3c2412-i2s.c          | 2 +-
 sound/soc/samsung/s3c24xx-i2s.c          | 2 +-
 sound/soc/samsung/s3c24xx_simtec.c       | 2 +-
 sound/soc/samsung/smdk_wm8580pcm.c       | 2 +-
 sound/soc/samsung/smdk_wm8994.c          | 2 +-
 sound/soc/samsung/smdk_wm8994pcm.c       | 2 +-
 sound/soc/samsung/spdif.c                | 2 +-
 sound/soc/samsung/speyside.c             | 2 +-
 sound/soc/samsung/tobermory.c            | 2 +-
 sound/soc/sh/dma-sh7760.c                | 2 +-
 sound/soc/sh/hac.c                       | 2 +-
 sound/soc/sh/siu_dai.c                   | 2 +-
 sound/soc/sh/ssi.c                       | 2 +-
 sound/soc/soc-utils.c                    | 2 +-
 sound/soc/spear/spear_pcm.c              | 2 +-
 sound/soc/tegra/tegra20_das.c            | 2 +-
 sound/soc/tegra/tegra20_i2s.c            | 2 +-
 sound/soc/tegra/tegra20_spdif.c          | 2 +-
 sound/soc/tegra/tegra30_ahub.c           | 2 +-
 sound/soc/tegra/tegra30_i2s.c            | 2 +-
 sound/soc/tegra/tegra_alc5632.c          | 2 +-
 sound/soc/tegra/tegra_pcm.c              | 2 +-
 sound/soc/tegra/tegra_wm8753.c           | 2 +-
 sound/soc/tegra/tegra_wm8903.c           | 2 +-
 sound/soc/tegra/trimslice.c              | 2 +-
 sound/soc/txx9/txx9aclc-ac97.c           | 2 +-
 sound/soc/txx9/txx9aclc.c                | 2 +-
 sound/soc/ux500/mop500.c                 | 2 +-
 sound/soc/ux500/ux500_msp_dai.c          | 2 +-
 sound/soc/ux500/ux500_pcm.c              | 2 +-
 sound/sparc/cs4231.c                     | 2 +-
 sound/sparc/dbri.c                       | 2 +-
 sound/spi/at73c213.c                     | 2 +-
 329 files changed, 371 insertions(+), 371 deletions(-)

diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index e54a83e..63b1e14 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -1072,7 +1072,7 @@ static int aaci_probe(struct amba_device *dev,
 	return ret;
 }
 
-static int __devexit aaci_remove(struct amba_device *dev)
+static int aaci_remove(struct amba_device *dev)
 {
 	struct snd_card *card = amba_get_drvdata(dev);
 
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index 59ffc3e..ec54be4 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -224,7 +224,7 @@ err_dev:
 	return ret;
 }
 
-static int __devexit pxa2xx_ac97_remove(struct platform_device *dev)
+static int pxa2xx_ac97_remove(struct platform_device *dev)
 {
 	struct snd_card *card = platform_get_drvdata(dev);
 
diff --git a/sound/atmel/abdac.c b/sound/atmel/abdac.c
index d3b9cf5..071ce1b 100644
--- a/sound/atmel/abdac.c
+++ b/sound/atmel/abdac.c
@@ -567,7 +567,7 @@ static SIMPLE_DEV_PM_OPS(atmel_abdac_pm, atmel_abdac_suspend, atmel_abdac_resume
 #define ATMEL_ABDAC_PM_OPS	NULL
 #endif
 
-static int __devexit atmel_abdac_remove(struct platform_device *pdev)
+static int atmel_abdac_remove(struct platform_device *pdev)
 {
 	struct snd_card *card = platform_get_drvdata(pdev);
 	struct atmel_abdac *dac = get_dac(card);
diff --git a/sound/atmel/ac97c.c b/sound/atmel/ac97c.c
index 7b5664f..79d6bda 100644
--- a/sound/atmel/ac97c.c
+++ b/sound/atmel/ac97c.c
@@ -1168,7 +1168,7 @@ static SIMPLE_DEV_PM_OPS(atmel_ac97c_pm, atmel_ac97c_suspend, atmel_ac97c_resume
 #define ATMEL_AC97C_PM_OPS	NULL
 #endif
 
-static int __devexit atmel_ac97c_remove(struct platform_device *pdev)
+static int atmel_ac97c_remove(struct platform_device *pdev)
 {
 	struct snd_card *card = platform_get_drvdata(pdev);
 	struct atmel_ac97c *chip = get_chip(card);
diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
index 542a5b7..7a7a5cb 100644
--- a/sound/drivers/aloop.c
+++ b/sound/drivers/aloop.c
@@ -1177,7 +1177,7 @@ static int loopback_probe(struct platform_device *devptr)
 	return err;
 }
 
-static int __devexit loopback_remove(struct platform_device *devptr)
+static int loopback_remove(struct platform_device *devptr)
 {
 	snd_card_free(platform_get_drvdata(devptr));
 	platform_set_drvdata(devptr, NULL);
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index 7cfb2f2..7a1d41a 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -1126,7 +1126,7 @@ static int snd_dummy_probe(struct platform_device *devptr)
 	return err;
 }
 
-static int __devexit snd_dummy_remove(struct platform_device *devptr)
+static int snd_dummy_remove(struct platform_device *devptr)
 {
 	snd_card_free(platform_get_drvdata(devptr));
 	platform_set_drvdata(devptr, NULL);
diff --git a/sound/drivers/mpu401/mpu401.c b/sound/drivers/mpu401/mpu401.c
index 5c10699..b99415f 100644
--- a/sound/drivers/mpu401/mpu401.c
+++ b/sound/drivers/mpu401/mpu401.c
@@ -126,7 +126,7 @@ static int snd_mpu401_probe(struct platform_device *devptr)
 	return 0;
 }
 
-static int __devexit snd_mpu401_remove(struct platform_device *devptr)
+static int snd_mpu401_remove(struct platform_device *devptr)
 {
 	snd_card_free(platform_get_drvdata(devptr));
 	platform_set_drvdata(devptr, NULL);
@@ -211,7 +211,7 @@ static int snd_mpu401_pnp_probe(struct pnp_dev *pnp_dev,
 	return -ENODEV;
 }
 
-static void __devexit snd_mpu401_pnp_remove(struct pnp_dev *dev)
+static void snd_mpu401_pnp_remove(struct pnp_dev *dev)
 {
 	struct snd_card *card = (struct snd_card *) pnp_get_drvdata(dev);
 
diff --git a/sound/drivers/mtpav.c b/sound/drivers/mtpav.c
index 8fd51d5..88cc634 100644
--- a/sound/drivers/mtpav.c
+++ b/sound/drivers/mtpav.c
@@ -746,7 +746,7 @@ static int snd_mtpav_probe(struct platform_device *dev)
 	return err;
 }
 
-static int __devexit snd_mtpav_remove(struct platform_device *devptr)
+static int snd_mtpav_remove(struct platform_device *devptr)
 {
 	snd_card_free(platform_get_drvdata(devptr));
 	platform_set_drvdata(devptr, NULL);
diff --git a/sound/drivers/mts64.c b/sound/drivers/mts64.c
index f1d463e..5eec128 100644
--- a/sound/drivers/mts64.c
+++ b/sound/drivers/mts64.c
@@ -1025,7 +1025,7 @@ __err:
 	return err;
 }
 
-static int __devexit snd_mts64_remove(struct platform_device *pdev)
+static int snd_mts64_remove(struct platform_device *pdev)
 {
 	struct snd_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/drivers/pcsp/pcsp.c b/sound/drivers/pcsp/pcsp.c
index 0ad0105..7a5fdb9 100644
--- a/sound/drivers/pcsp/pcsp.c
+++ b/sound/drivers/pcsp/pcsp.c
@@ -161,7 +161,7 @@ static int alsa_card_pcsp_init(struct device *dev)
 	return 0;
 }
 
-static void __devexit alsa_card_pcsp_exit(struct snd_pcsp *chip)
+static void alsa_card_pcsp_exit(struct snd_pcsp *chip)
 {
 	snd_card_free(chip->card);
 }
@@ -184,7 +184,7 @@ static int pcsp_probe(struct platform_device *dev)
 	return 0;
 }
 
-static int __devexit pcsp_remove(struct platform_device *dev)
+static int pcsp_remove(struct platform_device *dev)
 {
 	struct snd_pcsp *chip = platform_get_drvdata(dev);
 	alsa_card_pcsp_exit(chip);
diff --git a/sound/drivers/portman2x4.c b/sound/drivers/portman2x4.c
index bc4be6f..66996f3 100644
--- a/sound/drivers/portman2x4.c
+++ b/sound/drivers/portman2x4.c
@@ -814,7 +814,7 @@ __err:
 	return err;
 }
 
-static int __devexit snd_portman_remove(struct platform_device *pdev)
+static int snd_portman_remove(struct platform_device *pdev)
 {
 	struct snd_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/drivers/serial-u16550.c b/sound/drivers/serial-u16550.c
index 310b075..9b0a139 100644
--- a/sound/drivers/serial-u16550.c
+++ b/sound/drivers/serial-u16550.c
@@ -982,7 +982,7 @@ static int snd_serial_probe(struct platform_device *devptr)
 	return err;
 }
 
-static int __devexit snd_serial_remove(struct platform_device *devptr)
+static int snd_serial_remove(struct platform_device *devptr)
 {
 	snd_card_free(platform_get_drvdata(devptr));
 	platform_set_drvdata(devptr, NULL);
diff --git a/sound/drivers/virmidi.c b/sound/drivers/virmidi.c
index ab3ec53..cc4be88 100644
--- a/sound/drivers/virmidi.c
+++ b/sound/drivers/virmidi.c
@@ -129,7 +129,7 @@ static int snd_virmidi_probe(struct platform_device *devptr)
 	return err;
 }
 
-static int __devexit snd_virmidi_remove(struct platform_device *devptr)
+static int snd_virmidi_remove(struct platform_device *devptr)
 {
 	snd_card_free(platform_get_drvdata(devptr));
 	platform_set_drvdata(devptr, NULL);
diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
index 3ac0b9ed..d684655 100644
--- a/sound/firewire/speakers.c
+++ b/sound/firewire/speakers.c
@@ -770,7 +770,7 @@ error:
 	return err;
 }
 
-static int __devexit fwspk_remove(struct device *dev)
+static int fwspk_remove(struct device *dev)
 {
 	struct fwspk *fwspk = dev_get_drvdata(dev);
 
diff --git a/sound/isa/ad1816a/ad1816a.c b/sound/isa/ad1816a/ad1816a.c
index f63bf61..5640370 100644
--- a/sound/isa/ad1816a/ad1816a.c
+++ b/sound/isa/ad1816a/ad1816a.c
@@ -238,7 +238,7 @@ static int snd_ad1816a_pnp_detect(struct pnp_card_link *card,
         return -ENODEV;
 }
 
-static void __devexit snd_ad1816a_pnp_remove(struct pnp_card_link * pcard)
+static void snd_ad1816a_pnp_remove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/isa/ad1848/ad1848.c b/sound/isa/ad1848/ad1848.c
index 3cef9ec..c214ecf 100644
--- a/sound/isa/ad1848/ad1848.c
+++ b/sound/isa/ad1848/ad1848.c
@@ -132,7 +132,7 @@ out:	snd_card_free(card);
 	return error;
 }
 
-static int __devexit snd_ad1848_remove(struct device *dev, unsigned int n)
+static int snd_ad1848_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
 	dev_set_drvdata(dev, NULL);
diff --git a/sound/isa/adlib.c b/sound/isa/adlib.c
index 6a1c666..d265455 100644
--- a/sound/isa/adlib.c
+++ b/sound/isa/adlib.c
@@ -98,7 +98,7 @@ out:	snd_card_free(card);
 	return error;
 }
 
-static int __devexit snd_adlib_remove(struct device *dev, unsigned int n)
+static int snd_adlib_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
 	dev_set_drvdata(dev, NULL);
diff --git a/sound/isa/als100.c b/sound/isa/als100.c
index b282f007..c395ac3 100644
--- a/sound/isa/als100.c
+++ b/sound/isa/als100.c
@@ -307,7 +307,7 @@ static int snd_als100_pnp_detect(struct pnp_card_link *card,
 	return -ENODEV;
 }
 
-static void __devexit snd_als100_pnp_remove(struct pnp_card_link * pcard)
+static void snd_als100_pnp_remove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/isa/azt2320.c b/sound/isa/azt2320.c
index 19b1fee..c83418d 100644
--- a/sound/isa/azt2320.c
+++ b/sound/isa/azt2320.c
@@ -285,7 +285,7 @@ static int snd_azt2320_pnp_detect(struct pnp_card_link *card,
         return -ENODEV;
 }
 
-static void __devexit snd_azt2320_pnp_remove(struct pnp_card_link * pcard)
+static void snd_azt2320_pnp_remove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/isa/cmi8328.c b/sound/isa/cmi8328.c
index 6dfead9..a7369fe 100644
--- a/sound/isa/cmi8328.c
+++ b/sound/isa/cmi8328.c
@@ -401,7 +401,7 @@ error:
 	return err;
 }
 
-static int __devexit snd_cmi8328_remove(struct device *pdev, unsigned int dev)
+static int snd_cmi8328_remove(struct device *pdev, unsigned int dev)
 {
 	struct snd_card *card = dev_get_drvdata(pdev);
 	struct snd_cmi8328 *cmi = card->private_data;
diff --git a/sound/isa/cmi8330.c b/sound/isa/cmi8330.c
index e294e22..d96641c 100644
--- a/sound/isa/cmi8330.c
+++ b/sound/isa/cmi8330.c
@@ -647,7 +647,7 @@ static int snd_cmi8330_isa_probe(struct device *pdev,
 	return 0;
 }
 
-static int __devexit snd_cmi8330_isa_remove(struct device *devptr,
+static int snd_cmi8330_isa_remove(struct device *devptr,
 					    unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
@@ -717,7 +717,7 @@ static int snd_cmi8330_pnp_detect(struct pnp_card_link *pcard,
 	return 0;
 }
 
-static void __devexit snd_cmi8330_pnp_remove(struct pnp_card_link * pcard)
+static void snd_cmi8330_pnp_remove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/isa/cs423x/cs4231.c b/sound/isa/cs423x/cs4231.c
index ece5d8f..aa7a5d8 100644
--- a/sound/isa/cs423x/cs4231.c
+++ b/sound/isa/cs423x/cs4231.c
@@ -148,7 +148,7 @@ out:	snd_card_free(card);
 	return error;
 }
 
-static int __devexit snd_cs4231_remove(struct device *dev, unsigned int n)
+static int snd_cs4231_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
 	dev_set_drvdata(dev, NULL);
diff --git a/sound/isa/cs423x/cs4236.c b/sound/isa/cs423x/cs4236.c
index 752ccba..10602b8 100644
--- a/sound/isa/cs423x/cs4236.c
+++ b/sound/isa/cs423x/cs4236.c
@@ -500,7 +500,7 @@ static int snd_cs423x_isa_probe(struct device *pdev,
 	return 0;
 }
 
-static int __devexit snd_cs423x_isa_remove(struct device *pdev,
+static int snd_cs423x_isa_remove(struct device *pdev,
 					   unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(pdev));
@@ -597,7 +597,7 @@ static int snd_cs423x_pnpbios_detect(struct pnp_dev *pdev,
 	return 0;
 }
 
-static void __devexit snd_cs423x_pnp_remove(struct pnp_dev *pdev)
+static void snd_cs423x_pnp_remove(struct pnp_dev *pdev)
 {
 	snd_card_free(pnp_get_drvdata(pdev));
 	pnp_set_drvdata(pdev, NULL);
@@ -659,7 +659,7 @@ static int snd_cs423x_pnpc_detect(struct pnp_card_link *pcard,
 	return 0;
 }
 
-static void __devexit snd_cs423x_pnpc_remove(struct pnp_card_link * pcard)
+static void snd_cs423x_pnpc_remove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/isa/es1688/es1688.c b/sound/isa/es1688/es1688.c
index f62803b..a964e56 100644
--- a/sound/isa/es1688/es1688.c
+++ b/sound/isa/es1688/es1688.c
@@ -210,7 +210,7 @@ out:
 	return error;
 }
 
-static int __devexit snd_es1688_isa_remove(struct device *dev, unsigned int n)
+static int snd_es1688_isa_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
 	dev_set_drvdata(dev, NULL);
@@ -295,7 +295,7 @@ static int snd_es968_pnp_detect(struct pnp_card_link *pcard,
 	return 0;
 }
 
-static void __devexit snd_es968_pnp_remove(struct pnp_card_link * pcard)
+static void snd_es968_pnp_remove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/isa/es18xx.c b/sound/isa/es18xx.c
index 8fe5dc1..45e259f 100644
--- a/sound/isa/es18xx.c
+++ b/sound/isa/es18xx.c
@@ -2231,7 +2231,7 @@ static int snd_es18xx_isa_probe(struct device *pdev, unsigned int dev)
 	}
 }
 
-static int __devexit snd_es18xx_isa_remove(struct device *devptr,
+static int snd_es18xx_isa_remove(struct device *devptr,
 					   unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
@@ -2302,7 +2302,7 @@ static int snd_audiodrive_pnp_detect(struct pnp_dev *pdev,
 	return 0;
 }
 
-static void __devexit snd_audiodrive_pnp_remove(struct pnp_dev * pdev)
+static void snd_audiodrive_pnp_remove(struct pnp_dev * pdev)
 {
 	snd_card_free(pnp_get_drvdata(pdev));
 	pnp_set_drvdata(pdev, NULL);
@@ -2363,7 +2363,7 @@ static int snd_audiodrive_pnpc_detect(struct pnp_card_link *pcard,
 	return 0;
 }
 
-static void __devexit snd_audiodrive_pnpc_remove(struct pnp_card_link * pcard)
+static void snd_audiodrive_pnpc_remove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/isa/galaxy/galaxy.c b/sound/isa/galaxy/galaxy.c
index 6955e78..672184e 100644
--- a/sound/isa/galaxy/galaxy.c
+++ b/sound/isa/galaxy/galaxy.c
@@ -620,7 +620,7 @@ error:
 	return err;
 }
 
-static int __devexit snd_galaxy_remove(struct device *dev, unsigned int n)
+static int snd_galaxy_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
 	dev_set_drvdata(dev, NULL);
diff --git a/sound/isa/gus/gusclassic.c b/sound/isa/gus/gusclassic.c
index 4a4c856..3a85beb 100644
--- a/sound/isa/gus/gusclassic.c
+++ b/sound/isa/gus/gusclassic.c
@@ -211,7 +211,7 @@ out:	snd_card_free(card);
 	return error;
 }
 
-static int __devexit snd_gusclassic_remove(struct device *dev, unsigned int n)
+static int snd_gusclassic_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
 	dev_set_drvdata(dev, NULL);
diff --git a/sound/isa/gus/gusextreme.c b/sound/isa/gus/gusextreme.c
index e8ee416..99ab85c 100644
--- a/sound/isa/gus/gusextreme.c
+++ b/sound/isa/gus/gusextreme.c
@@ -339,7 +339,7 @@ out:	snd_card_free(card);
 	return error;
 }
 
-static int __devexit snd_gusextreme_remove(struct device *dev, unsigned int n)
+static int snd_gusextreme_remove(struct device *dev, unsigned int n)
 {
 	snd_card_free(dev_get_drvdata(dev));
 	dev_set_drvdata(dev, NULL);
diff --git a/sound/isa/gus/gusmax.c b/sound/isa/gus/gusmax.c
index 6e297c8..69477d3 100644
--- a/sound/isa/gus/gusmax.c
+++ b/sound/isa/gus/gusmax.c
@@ -354,7 +354,7 @@ static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
 	return err;
 }
 
-static int __devexit snd_gusmax_remove(struct device *devptr, unsigned int dev)
+static int snd_gusmax_remove(struct device *devptr, unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
 	dev_set_drvdata(devptr, NULL);
diff --git a/sound/isa/gus/interwave.c b/sound/isa/gus/interwave.c
index b5f436a..02d1dd0 100644
--- a/sound/isa/gus/interwave.c
+++ b/sound/isa/gus/interwave.c
@@ -846,7 +846,7 @@ static int snd_interwave_isa_probe(struct device *pdev,
 	}
 }
 
-static int __devexit snd_interwave_isa_remove(struct device *devptr, unsigned int dev)
+static int snd_interwave_isa_remove(struct device *devptr, unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
 	dev_set_drvdata(devptr, NULL);
@@ -896,7 +896,7 @@ static int snd_interwave_pnp_detect(struct pnp_card_link *pcard,
 	return 0;
 }
 
-static void __devexit snd_interwave_pnp_remove(struct pnp_card_link * pcard)
+static void snd_interwave_pnp_remove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c
index 75f297e..c57216d 100644
--- a/sound/isa/msnd/msnd_pinnacle.c
+++ b/sound/isa/msnd/msnd_pinnacle.c
@@ -634,7 +634,7 @@ err_release_region:
 }
 
 
-static void __devexit snd_msnd_unload(struct snd_card *card)
+static void snd_msnd_unload(struct snd_card *card)
 {
 	struct snd_msnd *chip = card->private_data;
 
@@ -1061,7 +1061,7 @@ cfg_error:
 #endif
 }
 
-static int __devexit snd_msnd_isa_remove(struct device *pdev, unsigned int dev)
+static int snd_msnd_isa_remove(struct device *pdev, unsigned int dev)
 {
 	snd_msnd_unload(dev_get_drvdata(pdev));
 	dev_set_drvdata(pdev, NULL);
@@ -1185,7 +1185,7 @@ _release_card:
 	return ret;
 }
 
-static void __devexit snd_msnd_pnp_remove(struct pnp_card_link *pcard)
+static void snd_msnd_pnp_remove(struct pnp_card_link *pcard)
 {
 	snd_msnd_unload(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/isa/opl3sa2.c b/sound/isa/opl3sa2.c
index 9f71f956..cdbfb17 100644
--- a/sound/isa/opl3sa2.c
+++ b/sound/isa/opl3sa2.c
@@ -754,7 +754,7 @@ static int snd_opl3sa2_pnp_detect(struct pnp_dev *pdev,
 	return 0;
 }
 
-static void __devexit snd_opl3sa2_pnp_remove(struct pnp_dev * pdev)
+static void snd_opl3sa2_pnp_remove(struct pnp_dev * pdev)
 {
 	snd_card_free(pnp_get_drvdata(pdev));
 	pnp_set_drvdata(pdev, NULL);
@@ -820,7 +820,7 @@ static int snd_opl3sa2_pnp_cdetect(struct pnp_card_link *pcard,
 	return 0;
 }
 
-static void __devexit snd_opl3sa2_pnp_cremove(struct pnp_card_link * pcard)
+static void snd_opl3sa2_pnp_cremove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
@@ -896,7 +896,7 @@ static int snd_opl3sa2_isa_probe(struct device *pdev,
 	return 0;
 }
 
-static int __devexit snd_opl3sa2_isa_remove(struct device *devptr,
+static int snd_opl3sa2_isa_remove(struct device *devptr,
 					    unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
diff --git a/sound/isa/opti9xx/miro.c b/sound/isa/opti9xx/miro.c
index f8747ab..f4f0e7d 100644
--- a/sound/isa/opti9xx/miro.c
+++ b/sound/isa/opti9xx/miro.c
@@ -1491,7 +1491,7 @@ static int snd_miro_isa_probe(struct device *devptr, unsigned int n)
 	return 0;
 }
 
-static int __devexit snd_miro_isa_remove(struct device *devptr,
+static int snd_miro_isa_remove(struct device *devptr,
 					 unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
@@ -1624,7 +1624,7 @@ static int snd_miro_pnp_probe(struct pnp_card_link *pcard,
 	return 0;
 }
 
-static void __devexit snd_miro_pnp_remove(struct pnp_card_link * pcard)
+static void snd_miro_pnp_remove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index 4a0d193..4a69f7e 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -1031,7 +1031,7 @@ static int snd_opti9xx_isa_probe(struct device *devptr,
 	return 0;
 }
 
-static int __devexit snd_opti9xx_isa_remove(struct device *devptr,
+static int snd_opti9xx_isa_remove(struct device *devptr,
 					    unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
@@ -1146,7 +1146,7 @@ static int snd_opti9xx_pnp_probe(struct pnp_card_link *pcard,
 	return 0;
 }
 
-static void __devexit snd_opti9xx_pnp_remove(struct pnp_card_link * pcard)
+static void snd_opti9xx_pnp_remove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/isa/sb/jazz16.c b/sound/isa/sb/jazz16.c
index 5bc42fe..0560d07 100644
--- a/sound/isa/sb/jazz16.c
+++ b/sound/isa/sb/jazz16.c
@@ -341,7 +341,7 @@ err_free:
 	return err;
 }
 
-static int __devexit snd_jazz16_remove(struct device *devptr, unsigned int dev)
+static int snd_jazz16_remove(struct device *devptr, unsigned int dev)
 {
 	struct snd_card *card = dev_get_drvdata(devptr);
 
diff --git a/sound/isa/sb/sb16.c b/sound/isa/sb/sb16.c
index fcb14b8..e44a645 100644
--- a/sound/isa/sb/sb16.c
+++ b/sound/isa/sb/sb16.c
@@ -563,7 +563,7 @@ static int snd_sb16_isa_probe(struct device *pdev, unsigned int dev)
 	}
 }
 
-static int __devexit snd_sb16_isa_remove(struct device *pdev, unsigned int dev)
+static int snd_sb16_isa_remove(struct device *pdev, unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(pdev));
 	dev_set_drvdata(pdev, NULL);
@@ -631,7 +631,7 @@ static int snd_sb16_pnp_detect(struct pnp_card_link *pcard,
 	return -ENODEV;
 }
 
-static void __devexit snd_sb16_pnp_remove(struct pnp_card_link * pcard)
+static void snd_sb16_pnp_remove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/isa/sb/sb8.c b/sound/isa/sb/sb8.c
index 69aa275..237d964 100644
--- a/sound/isa/sb/sb8.c
+++ b/sound/isa/sb/sb8.c
@@ -205,7 +205,7 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev)
 	return err;
 }
 
-static int __devexit snd_sb8_remove(struct device *pdev, unsigned int dev)
+static int snd_sb8_remove(struct device *pdev, unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(pdev));
 	dev_set_drvdata(pdev, NULL);
diff --git a/sound/isa/sc6000.c b/sound/isa/sc6000.c
index 486da56..fc648f2 100644
--- a/sound/isa/sc6000.c
+++ b/sound/isa/sc6000.c
@@ -687,7 +687,7 @@ err_exit:
 	return err;
 }
 
-static int __devexit snd_sc6000_remove(struct device *devptr, unsigned int dev)
+static int snd_sc6000_remove(struct device *devptr, unsigned int dev)
 {
 	struct snd_card *card = dev_get_drvdata(devptr);
 	char __iomem **vport = card->private_data;
diff --git a/sound/isa/sscape.c b/sound/isa/sscape.c
index 0b67a79..fc4ff0f 100644
--- a/sound/isa/sscape.c
+++ b/sound/isa/sscape.c
@@ -1197,7 +1197,7 @@ _release_card:
 	return ret;
 }
 
-static int __devexit snd_sscape_remove(struct device *devptr, unsigned int dev)
+static int snd_sscape_remove(struct device *devptr, unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
 	dev_set_drvdata(devptr, NULL);
@@ -1310,7 +1310,7 @@ _release_card:
 	return ret;
 }
 
-static void __devexit sscape_pnp_remove(struct pnp_card_link * pcard)
+static void sscape_pnp_remove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/isa/wavefront/wavefront.c b/sound/isa/wavefront/wavefront.c
index abe3c34..145a805 100644
--- a/sound/isa/wavefront/wavefront.c
+++ b/sound/isa/wavefront/wavefront.c
@@ -575,7 +575,7 @@ static int snd_wavefront_isa_probe(struct device *pdev,
 	return 0;
 }
 
-static int __devexit snd_wavefront_isa_remove(struct device *devptr,
+static int snd_wavefront_isa_remove(struct device *devptr,
 					      unsigned int dev)
 {
 	snd_card_free(dev_get_drvdata(devptr));
@@ -632,7 +632,7 @@ static int snd_wavefront_pnp_detect(struct pnp_card_link *pcard,
 	return 0;
 }
 
-static void __devexit snd_wavefront_pnp_remove(struct pnp_card_link * pcard)
+static void snd_wavefront_pnp_remove(struct pnp_card_link * pcard)
 {
 	snd_card_free(pnp_get_card_drvdata(pcard));
 	pnp_set_card_drvdata(pcard, NULL);
diff --git a/sound/mips/hal2.c b/sound/mips/hal2.c
index 690e019..7420c59 100644
--- a/sound/mips/hal2.c
+++ b/sound/mips/hal2.c
@@ -917,7 +917,7 @@ static int hal2_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit hal2_remove(struct platform_device *pdev)
+static int hal2_remove(struct platform_device *pdev)
 {
 	struct snd_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/mips/sgio2audio.c b/sound/mips/sgio2audio.c
index 8b5ef60..6a1de57 100644
--- a/sound/mips/sgio2audio.c
+++ b/sound/mips/sgio2audio.c
@@ -958,7 +958,7 @@ static int snd_sgio2audio_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit snd_sgio2audio_remove(struct platform_device *pdev)
+static int snd_sgio2audio_remove(struct platform_device *pdev)
 {
 	struct snd_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/oss/kahlua.c b/sound/oss/kahlua.c
index 5d092d2..2a44cc1 100644
--- a/sound/oss/kahlua.c
+++ b/sound/oss/kahlua.c
@@ -183,7 +183,7 @@ err_out_free:
 	return 1;
 }
 
-static void __devexit remove_one(struct pci_dev *pdev)
+static void remove_one(struct pci_dev *pdev)
 {
 	struct address_info *hw_config = pci_get_drvdata(pdev);
 	sb_dsp_unload(hw_config, 0);
@@ -220,7 +220,7 @@ static int __init kahlua_init_module(void)
 	return pci_register_driver(&kahlua_driver);
 }
 
-static void __devexit kahlua_cleanup_module(void)
+static void kahlua_cleanup_module(void)
 {
 	pci_unregister_driver(&kahlua_driver);
 }
diff --git a/sound/parisc/harmony.c b/sound/parisc/harmony.c
index cef6a11..7a624cc 100644
--- a/sound/parisc/harmony.c
+++ b/sound/parisc/harmony.c
@@ -1008,7 +1008,7 @@ free_and_ret:
 	return err;
 }
 
-static int __devexit
+static int
 snd_harmony_remove(struct parisc_device *padev)
 {
 	snd_card_free(parisc_get_drvdata(padev));
diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index 099d9fd..874c79b 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -1035,7 +1035,7 @@ free_and_ret:
 	return err;
 }
 
-static void __devexit
+static void
 snd_ad1889_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c
index b611059..4b61bd1 100644
--- a/sound/pci/ali5451/ali5451.c
+++ b/sound/pci/ali5451/ali5451.c
@@ -2295,7 +2295,7 @@ static int snd_ali_probe(struct pci_dev *pci,
 	return err;
 }
 
-static void __devexit snd_ali_remove(struct pci_dev *pci)
+static void snd_ali_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/als300.c b/sound/pci/als300.c
index 8fac3ce..6da6ea4 100644
--- a/sound/pci/als300.c
+++ b/sound/pci/als300.c
@@ -278,7 +278,7 @@ static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static void __devexit snd_als300_remove(struct pci_dev *pci)
+static void snd_als300_remove(struct pci_dev *pci)
 {
 	snd_als300_dbgcallenter();
 	snd_card_free(pci_get_drvdata(pci));
diff --git a/sound/pci/als4000.c b/sound/pci/als4000.c
index 2588c47..e8f4f03 100644
--- a/sound/pci/als4000.c
+++ b/sound/pci/als4000.c
@@ -981,7 +981,7 @@ out:
 	return err;
 }
 
-static void __devexit snd_card_als4000_remove(struct pci_dev *pci)
+static void snd_card_als4000_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c
index a01739c..72ee21d 100644
--- a/sound/pci/asihpi/asihpi.c
+++ b/sound/pci/asihpi/asihpi.c
@@ -2944,7 +2944,7 @@ __nodev:
 
 }
 
-static void __devexit snd_asihpi_remove(struct pci_dev *pci_dev)
+static void snd_asihpi_remove(struct pci_dev *pci_dev)
 {
 	struct hpi_adapter *hpi = pci_get_drvdata(pci_dev);
 	snd_card_free(hpi->snd_card);
diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c
index 842b94d..39228f0 100644
--- a/sound/pci/asihpi/hpioctl.c
+++ b/sound/pci/asihpi/hpioctl.c
@@ -420,7 +420,7 @@ err:
 	return -ENODEV;
 }
 
-void __devexit asihpi_adapter_remove(struct pci_dev *pci_dev)
+void asihpi_adapter_remove(struct pci_dev *pci_dev)
 {
 	int idx;
 	struct hpi_message hm;
diff --git a/sound/pci/asihpi/hpioctl.h b/sound/pci/asihpi/hpioctl.h
index f99baea..b6f3f94 100644
--- a/sound/pci/asihpi/hpioctl.h
+++ b/sound/pci/asihpi/hpioctl.h
@@ -21,7 +21,7 @@ Linux HPI ioctl, and shared module init functions
 
 int asihpi_adapter_probe(struct pci_dev *pci_dev,
 	const struct pci_device_id *pci_id);
-void __devexit asihpi_adapter_remove(struct pci_dev *pci_dev);
+void asihpi_adapter_remove(struct pci_dev *pci_dev);
 void __init asihpi_init(void);
 void __exit asihpi_exit(void);
 
diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index a4ea06f..adeacbb 100644
--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -1710,7 +1710,7 @@ static int snd_atiixp_probe(struct pci_dev *pci,
 	return err;
 }
 
-static void __devexit snd_atiixp_remove(struct pci_dev *pci)
+static void snd_atiixp_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c
index 5cb8928..a942b77 100644
--- a/sound/pci/atiixp_modem.c
+++ b/sound/pci/atiixp_modem.c
@@ -1331,7 +1331,7 @@ static int snd_atiixp_probe(struct pci_dev *pci,
 	return err;
 }
 
-static void __devexit snd_atiixp_remove(struct pci_dev *pci)
+static void snd_atiixp_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/au88x0/au88x0.c b/sound/pci/au88x0/au88x0.c
index 9cf669a..179588f 100644
--- a/sound/pci/au88x0/au88x0.c
+++ b/sound/pci/au88x0/au88x0.c
@@ -366,7 +366,7 @@ static int snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci
 }
 
 // destructor -- see "Destructor" sub-section
-static void __devexit snd_vortex_remove(struct pci_dev *pci)
+static void snd_vortex_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/aw2/aw2-alsa.c b/sound/pci/aw2/aw2-alsa.c
index c1f35e4..361984d 100644
--- a/sound/pci/aw2/aw2-alsa.c
+++ b/sound/pci/aw2/aw2-alsa.c
@@ -117,7 +117,7 @@ static int snd_aw2_create(struct snd_card *card,
 				    struct pci_dev *pci, struct aw2 **rchip);
 static int snd_aw2_probe(struct pci_dev *pci,
 				   const struct pci_device_id *pci_id);
-static void __devexit snd_aw2_remove(struct pci_dev *pci);
+static void snd_aw2_remove(struct pci_dev *pci);
 static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream);
 static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream);
 static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream);
@@ -389,7 +389,7 @@ static int snd_aw2_probe(struct pci_dev *pci,
 }
 
 /* destructor */
-static void __devexit snd_aw2_remove(struct pci_dev *pci)
+static void snd_aw2_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/azt3328.c b/sound/pci/azt3328.c
index 8c3502d..39363c2 100644
--- a/sound/pci/azt3328.c
+++ b/sound/pci/azt3328.c
@@ -2713,7 +2713,7 @@ out:
 	return err;
 }
 
-static void __devexit
+static void
 snd_azf3328_remove(struct pci_dev *pci)
 {
 	snd_azf3328_dbgcallenter();
diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index 354ec5a..41c9044 100644
--- a/sound/pci/bt87x.c
+++ b/sound/pci/bt87x.c
@@ -948,7 +948,7 @@ _error:
 	return err;
 }
 
-static void __devexit snd_bt87x_remove(struct pci_dev *pci)
+static void snd_bt87x_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c
index f827687..1610a57 100644
--- a/sound/pci/ca0106/ca0106_main.c
+++ b/sound/pci/ca0106/ca0106_main.c
@@ -1893,7 +1893,7 @@ static int snd_ca0106_probe(struct pci_dev *pci,
 	return err;
 }
 
-static void __devexit snd_ca0106_remove(struct pci_dev *pci)
+static void snd_ca0106_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c
index d67209a..7177993 100644
--- a/sound/pci/cmipci.c
+++ b/sound/pci/cmipci.c
@@ -3314,7 +3314,7 @@ static int snd_cmipci_probe(struct pci_dev *pci,
 
 }
 
-static void __devexit snd_cmipci_remove(struct pci_dev *pci)
+static void snd_cmipci_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index 5431c6d..9e65315 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -1968,7 +1968,7 @@ static int snd_cs4281_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_cs4281_remove(struct pci_dev *pci)
+static void snd_cs4281_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/cs46xx/cs46xx.c b/sound/pci/cs46xx/cs46xx.c
index 74a43b0..6c48bcb 100644
--- a/sound/pci/cs46xx/cs46xx.c
+++ b/sound/pci/cs46xx/cs46xx.c
@@ -155,7 +155,7 @@ static int snd_card_cs46xx_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_card_cs46xx_remove(struct pci_dev *pci)
+static void snd_card_cs46xx_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/cs5530.c b/sound/pci/cs5530.c
index 94aee6e..241f546 100644
--- a/sound/pci/cs5530.c
+++ b/sound/pci/cs5530.c
@@ -88,7 +88,7 @@ static int snd_cs5530_dev_free(struct snd_device *device)
 	return snd_cs5530_free(chip);
 }
 
-static void __devexit snd_cs5530_remove(struct pci_dev *pci)
+static void snd_cs5530_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/cs5535audio/cs5535audio.c b/sound/pci/cs5535audio/cs5535audio.c
index cf188b2..54136e1 100644
--- a/sound/pci/cs5535audio/cs5535audio.c
+++ b/sound/pci/cs5535audio/cs5535audio.c
@@ -387,7 +387,7 @@ probefail_out:
 	return err;
 }
 
-static void __devexit snd_cs5535audio_remove(struct pci_dev *pci)
+static void snd_cs5535audio_remove(struct pci_dev *pci)
 {
 	olpc_quirks_cleanup();
 	snd_card_free(pci_get_drvdata(pci));
diff --git a/sound/pci/cs5535audio/cs5535audio.h b/sound/pci/cs5535audio/cs5535audio.h
index 536a6bb..d6422ad 100644
--- a/sound/pci/cs5535audio/cs5535audio.h
+++ b/sound/pci/cs5535audio/cs5535audio.h
@@ -100,7 +100,7 @@ extern const struct dev_pm_ops snd_cs5535audio_pm;
 void olpc_prequirks(struct snd_card *card,
 		struct snd_ac97_template *ac97);
 int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97);
-void __devexit olpc_quirks_cleanup(void);
+void olpc_quirks_cleanup(void);
 void olpc_analog_input(struct snd_ac97 *ac97, int on);
 void olpc_mic_bias(struct snd_ac97 *ac97, int on);
 
diff --git a/sound/pci/cs5535audio/cs5535audio_olpc.c b/sound/pci/cs5535audio/cs5535audio_olpc.c
index 6a98019..67fba40 100644
--- a/sound/pci/cs5535audio/cs5535audio_olpc.c
+++ b/sound/pci/cs5535audio/cs5535audio_olpc.c
@@ -185,7 +185,7 @@ int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97)
 	return 0;
 }
 
-void __devexit olpc_quirks_cleanup(void)
+void olpc_quirks_cleanup(void)
 {
 	gpio_free(OLPC_GPIO_MIC_AC);
 }
diff --git a/sound/pci/ctxfi/xfi.c b/sound/pci/ctxfi/xfi.c
index 8275ac3..97db201 100644
--- a/sound/pci/ctxfi/xfi.c
+++ b/sound/pci/ctxfi/xfi.c
@@ -118,7 +118,7 @@ error:
 	return err;
 }
 
-static void __devexit ct_card_remove(struct pci_dev *pci)
+static void ct_card_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
index f4400ba..31ba99e 100644
--- a/sound/pci/echoaudio/echoaudio.c
+++ b/sound/pci/echoaudio/echoaudio.c
@@ -2316,7 +2316,7 @@ static SIMPLE_DEV_PM_OPS(snd_echo_pm, snd_echo_suspend, snd_echo_resume);
 #endif /* CONFIG_PM_SLEEP */
 
 
-static void __devexit snd_echo_remove(struct pci_dev *pci)
+static void snd_echo_remove(struct pci_dev *pci)
 {
 	struct echoaudio *chip;
 
diff --git a/sound/pci/emu10k1/emu10k1.c b/sound/pci/emu10k1/emu10k1.c
index 77b316d..fe7e7b6 100644
--- a/sound/pci/emu10k1/emu10k1.c
+++ b/sound/pci/emu10k1/emu10k1.c
@@ -199,7 +199,7 @@ static int snd_card_emu10k1_probe(struct pci_dev *pci,
 	return err;
 }
 
-static void __devexit snd_card_emu10k1_remove(struct pci_dev *pci)
+static void snd_card_emu10k1_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c
index 9c618c2..cc897e9 100644
--- a/sound/pci/emu10k1/emu10k1x.c
+++ b/sound/pci/emu10k1/emu10k1x.c
@@ -1619,7 +1619,7 @@ static int snd_emu10k1x_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_emu10k1x_remove(struct pci_dev *pci)
+static void snd_emu10k1x_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c
index 2e42aab..20c14a7 100644
--- a/sound/pci/ens1370.c
+++ b/sound/pci/ens1370.c
@@ -2494,7 +2494,7 @@ static int snd_audiopci_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_audiopci_remove(struct pci_dev *pci)
+static void snd_audiopci_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c
index 5441377..4062722 100644
--- a/sound/pci/es1938.c
+++ b/sound/pci/es1938.c
@@ -1878,7 +1878,7 @@ static int snd_es1938_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_es1938_remove(struct pci_dev *pci)
+static void snd_es1938_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c
index 71629cd..8c6e693 100644
--- a/sound/pci/es1968.c
+++ b/sound/pci/es1968.c
@@ -2903,7 +2903,7 @@ static int snd_es1968_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_es1968_remove(struct pci_dev *pci)
+static void snd_es1968_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index 446fc99..324013d 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -1367,7 +1367,7 @@ static int snd_card_fm801_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_card_fm801_remove(struct pci_dev *pci)
+static void snd_card_fm801_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 0aedbe1..25723c0 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -3525,7 +3525,7 @@ out_free:
 	return err;
 }
 
-static void __devexit azx_remove(struct pci_dev *pci)
+static void azx_remove(struct pci_dev *pci)
 {
 	struct snd_card *card = pci_get_drvdata(pci);
 
diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c
index b6e9dda..b528515 100644
--- a/sound/pci/ice1712/ice1712.c
+++ b/sound/pci/ice1712/ice1712.c
@@ -2797,7 +2797,7 @@ static int snd_ice1712_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_ice1712_remove(struct pci_dev *pci)
+static void snd_ice1712_remove(struct pci_dev *pci)
 {
 	struct snd_card *card = pci_get_drvdata(pci);
 	struct snd_ice1712 *ice = card->private_data;
diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c
index 7551c34..e07076f 100644
--- a/sound/pci/ice1712/ice1724.c
+++ b/sound/pci/ice1712/ice1724.c
@@ -2792,7 +2792,7 @@ __found:
 	return 0;
 }
 
-static void __devexit snd_vt1724_remove(struct pci_dev *pci)
+static void snd_vt1724_remove(struct pci_dev *pci)
 {
 	struct snd_card *card = pci_get_drvdata(pci);
 	struct snd_ice1712 *ice = card->private_data;
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index 4074d4f..24aecf7 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -3359,7 +3359,7 @@ static int snd_intel8x0_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_intel8x0_remove(struct pci_dev *pci)
+static void snd_intel8x0_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/intel8x0m.c b/sound/pci/intel8x0m.c
index 921521d..7569bf5 100644
--- a/sound/pci/intel8x0m.c
+++ b/sound/pci/intel8x0m.c
@@ -1325,7 +1325,7 @@ static int snd_intel8x0m_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_intel8x0m_remove(struct pci_dev *pci)
+static void snd_intel8x0m_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c
index 3398453..0f920de 100644
--- a/sound/pci/korg1212/korg1212.c
+++ b/sound/pci/korg1212/korg1212.c
@@ -2469,7 +2469,7 @@ static int snd_korg1212_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_korg1212_remove(struct pci_dev *pci)
+static void snd_korg1212_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/lola/lola.c b/sound/pci/lola/lola.c
index 7be3dad..a32dda7 100644
--- a/sound/pci/lola/lola.c
+++ b/sound/pci/lola/lola.c
@@ -756,7 +756,7 @@ out_free:
 	return err;
 }
 
-static void __devexit lola_remove(struct pci_dev *pci)
+static void lola_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/lx6464es/lx6464es.c b/sound/pci/lx6464es/lx6464es.c
index c9119ce..b2540fb 100644
--- a/sound/pci/lx6464es/lx6464es.c
+++ b/sound/pci/lx6464es/lx6464es.c
@@ -1136,7 +1136,7 @@ out_free:
 
 }
 
-static void __devexit snd_lx6464es_remove(struct pci_dev *pci)
+static void snd_lx6464es_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c
index 986cd07..ed26007 100644
--- a/sound/pci/maestro3.c
+++ b/sound/pci/maestro3.c
@@ -2767,7 +2767,7 @@ static int snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 	return 0;
 }
 
-static void __devexit snd_m3_remove(struct pci_dev *pci)
+static void snd_m3_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c
index f744df5..65bc05b 100644
--- a/sound/pci/mixart/mixart.c
+++ b/sound/pci/mixart/mixart.c
@@ -1374,7 +1374,7 @@ static int snd_mixart_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_mixart_remove(struct pci_dev *pci)
+static void snd_mixart_remove(struct pci_dev *pci)
 {
 	snd_mixart_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c
index 6c3fd38..dad075e 100644
--- a/sound/pci/nm256/nm256.c
+++ b/sound/pci/nm256/nm256.c
@@ -1738,7 +1738,7 @@ static int snd_nm256_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_nm256_remove(struct pci_dev *pci)
+static void snd_nm256_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/pcxhr/pcxhr.c b/sound/pci/pcxhr/pcxhr.c
index cc2008a..7276d42 100644
--- a/sound/pci/pcxhr/pcxhr.c
+++ b/sound/pci/pcxhr/pcxhr.c
@@ -1688,7 +1688,7 @@ static int pcxhr_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit pcxhr_remove(struct pci_dev *pci)
+static void pcxhr_remove(struct pci_dev *pci)
 {
 	pcxhr_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/riptide/riptide.c b/sound/pci/riptide/riptide.c
index 42da7d5..baf28ca 100644
--- a/sound/pci/riptide/riptide.c
+++ b/sound/pci/riptide/riptide.c
@@ -2057,7 +2057,7 @@ static int snd_riptide_joystick_probe(struct pci_dev *pci, const struct pci_devi
 	return 0;
 }
 
-static void __devexit snd_riptide_joystick_remove(struct pci_dev *pci)
+static void snd_riptide_joystick_remove(struct pci_dev *pci)
 {
 	struct gameport *gameport = pci_get_drvdata(pci);
 	if (gameport) {
@@ -2172,7 +2172,7 @@ static int snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_i
 	return err;
 }
 
-static void __devexit snd_card_riptide_remove(struct pci_dev *pci)
+static void snd_card_riptide_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/rme32.c b/sound/pci/rme32.c
index 1378c3c..04f51da 100644
--- a/sound/pci/rme32.c
+++ b/sound/pci/rme32.c
@@ -1977,7 +1977,7 @@ static int snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_
 	return 0;
 }
 
-static void __devexit snd_rme32_remove(struct pci_dev *pci)
+static void snd_rme32_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c
index c145d80..2fbec92 100644
--- a/sound/pci/rme96.c
+++ b/sound/pci/rme96.c
@@ -2387,7 +2387,7 @@ static int snd_rme96_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_rme96_remove(struct pci_dev *pci)
+static void snd_rme96_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index bff2f60..6b19f32 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -5630,7 +5630,7 @@ static int snd_hdsp_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_hdsp_remove(struct pci_dev *pci)
+static void snd_hdsp_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 4724808..1bf1d8d 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -6964,7 +6964,7 @@ static int snd_hdspm_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_hdspm_remove(struct pci_dev *pci)
+static void snd_hdspm_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/rme9652/rme9652.c b/sound/pci/rme9652/rme9652.c
index 077cfb7..ca8420e 100644
--- a/sound/pci/rme9652/rme9652.c
+++ b/sound/pci/rme9652/rme9652.c
@@ -2625,7 +2625,7 @@ static int snd_rme9652_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_rme9652_remove(struct pci_dev *pci)
+static void snd_rme9652_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/sis7019.c b/sound/pci/sis7019.c
index 8548deb..a9d7a1c 100644
--- a/sound/pci/sis7019.c
+++ b/sound/pci/sis7019.c
@@ -1478,7 +1478,7 @@ error_out:
 	return rc;
 }
 
-static void __devexit snd_sis7019_remove(struct pci_dev *pci)
+static void snd_sis7019_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/sonicvibes.c b/sound/pci/sonicvibes.c
index f192476..da10d1d 100644
--- a/sound/pci/sonicvibes.c
+++ b/sound/pci/sonicvibes.c
@@ -1524,7 +1524,7 @@ static int snd_sonic_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_sonic_remove(struct pci_dev *pci)
+static void snd_sonic_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/trident/trident.c b/sound/pci/trident/trident.c
index 7594bc2..ea71f89 100644
--- a/sound/pci/trident/trident.c
+++ b/sound/pci/trident/trident.c
@@ -166,7 +166,7 @@ static int snd_trident_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_trident_remove(struct pci_dev *pci)
+static void snd_trident_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index 5481695..6716479 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -2643,7 +2643,7 @@ static int snd_via82xx_probe(struct pci_dev *pci,
 	return err;
 }
 
-static void __devexit snd_via82xx_remove(struct pci_dev *pci)
+static void snd_via82xx_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/via82xx_modem.c b/sound/pci/via82xx_modem.c
index a7f5c64..11d5320 100644
--- a/sound/pci/via82xx_modem.c
+++ b/sound/pci/via82xx_modem.c
@@ -1224,7 +1224,7 @@ static int snd_via82xx_probe(struct pci_dev *pci,
 	return err;
 }
 
-static void __devexit snd_via82xx_remove(struct pci_dev *pci)
+static void snd_via82xx_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/vx222/vx222.c b/sound/pci/vx222/vx222.c
index 6d4fbcf..2400277 100644
--- a/sound/pci/vx222/vx222.c
+++ b/sound/pci/vx222/vx222.c
@@ -251,7 +251,7 @@ static int snd_vx222_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_vx222_remove(struct pci_dev *pci)
+static void snd_vx222_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/pci/ymfpci/ymfpci.c b/sound/pci/ymfpci/ymfpci.c
index 2dbb55f..b0e1a0c 100644
--- a/sound/pci/ymfpci/ymfpci.c
+++ b/sound/pci/ymfpci/ymfpci.c
@@ -344,7 +344,7 @@ static int snd_card_ymfpci_probe(struct pci_dev *pci,
 	return 0;
 }
 
-static void __devexit snd_card_ymfpci_remove(struct pci_dev *pci)
+static void snd_card_ymfpci_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
 	pci_set_drvdata(pci, NULL);
diff --git a/sound/ppc/powermac.c b/sound/ppc/powermac.c
index 625d12e..09fc848 100644
--- a/sound/ppc/powermac.c
+++ b/sound/ppc/powermac.c
@@ -136,7 +136,7 @@ __error:
 }
 
 
-static int __devexit snd_pmac_remove(struct platform_device *devptr)
+static int snd_pmac_remove(struct platform_device *devptr)
 {
 	snd_card_free(platform_get_drvdata(devptr));
 	platform_set_drvdata(devptr, NULL);
diff --git a/sound/sh/aica.c b/sound/sh/aica.c
index 1cbbf42..0ab1f91 100644
--- a/sound/sh/aica.c
+++ b/sound/sh/aica.c
@@ -591,7 +591,7 @@ static int add_aicamixer_controls(struct snd_card_aica
 	return 0;
 }
 
-static int __devexit snd_aica_remove(struct platform_device *devptr)
+static int snd_aica_remove(struct platform_device *devptr)
 {
 	struct snd_card_aica *dreamcastcard;
 	dreamcastcard = platform_get_drvdata(devptr);
diff --git a/sound/soc/atmel/atmel-pcm.c b/sound/soc/atmel/atmel-pcm.c
index 92cc26d..41849c6 100644
--- a/sound/soc/atmel/atmel-pcm.c
+++ b/sound/soc/atmel/atmel-pcm.c
@@ -478,7 +478,7 @@ static int atmel_soc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &atmel_soc_platform);
 }
 
-static int __devexit atmel_soc_platform_remove(struct platform_device *pdev)
+static int atmel_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
index f2e6efd..d3528cd 100644
--- a/sound/soc/atmel/atmel_ssc_dai.c
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -794,7 +794,7 @@ static int asoc_ssc_probe(struct platform_device *pdev)
 	return snd_soc_register_dai(&pdev->dev, &atmel_ssc_dai[pdev->id]);
 }
 
-static int __devexit asoc_ssc_remove(struct platform_device *pdev)
+static int asoc_ssc_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dai(&pdev->dev);
 	return 0;
diff --git a/sound/soc/atmel/sam9g20_wm8731.c b/sound/soc/atmel/sam9g20_wm8731.c
index 1197515..8e533c9 100644
--- a/sound/soc/atmel/sam9g20_wm8731.c
+++ b/sound/soc/atmel/sam9g20_wm8731.c
@@ -244,7 +244,7 @@ err:
 	return ret;
 }
 
-static int __devexit at91sam9g20ek_audio_remove(struct platform_device *pdev)
+static int at91sam9g20ek_audio_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/au1x/ac97c.c b/sound/soc/au1x/ac97c.c
index a444bfb..ea7d9d1 100644
--- a/sound/soc/au1x/ac97c.c
+++ b/sound/soc/au1x/ac97c.c
@@ -276,7 +276,7 @@ static int au1xac97c_drvprobe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit au1xac97c_drvremove(struct platform_device *pdev)
+static int au1xac97c_drvremove(struct platform_device *pdev)
 {
 	struct au1xpsc_audio_data *ctx = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/au1x/db1000.c b/sound/soc/au1x/db1000.c
index 2a8bf01..376d976 100644
--- a/sound/soc/au1x/db1000.c
+++ b/sound/soc/au1x/db1000.c
@@ -41,7 +41,7 @@ static int db1000_audio_probe(struct platform_device *pdev)
 	return snd_soc_register_card(card);
 }
 
-static int __devexit db1000_audio_remove(struct platform_device *pdev)
+static int db1000_audio_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 	snd_soc_unregister_card(card);
diff --git a/sound/soc/au1x/db1200.c b/sound/soc/au1x/db1200.c
index fdda99c..a497a0c 100644
--- a/sound/soc/au1x/db1200.c
+++ b/sound/soc/au1x/db1200.c
@@ -186,7 +186,7 @@ static int db1200_audio_probe(struct platform_device *pdev)
 	return snd_soc_register_card(card);
 }
 
-static int __devexit db1200_audio_remove(struct platform_device *pdev)
+static int db1200_audio_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 	snd_soc_unregister_card(card);
diff --git a/sound/soc/au1x/dbdma2.c b/sound/soc/au1x/dbdma2.c
index ec85c58..3b4eafa 100644
--- a/sound/soc/au1x/dbdma2.c
+++ b/sound/soc/au1x/dbdma2.c
@@ -362,7 +362,7 @@ static int au1xpsc_pcm_drvprobe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &au1xpsc_soc_platform);
 }
 
-static int __devexit au1xpsc_pcm_drvremove(struct platform_device *pdev)
+static int au1xpsc_pcm_drvremove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 
diff --git a/sound/soc/au1x/dma.c b/sound/soc/au1x/dma.c
index ccfbe5b..befd107 100644
--- a/sound/soc/au1x/dma.c
+++ b/sound/soc/au1x/dma.c
@@ -335,7 +335,7 @@ static int alchemy_pcm_drvprobe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &alchemy_pcm_soc_platform);
 }
 
-static int __devexit alchemy_pcm_drvremove(struct platform_device *pdev)
+static int alchemy_pcm_drvremove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 
diff --git a/sound/soc/au1x/i2sc.c b/sound/soc/au1x/i2sc.c
index 4737c85..072448a 100644
--- a/sound/soc/au1x/i2sc.c
+++ b/sound/soc/au1x/i2sc.c
@@ -263,7 +263,7 @@ static int au1xi2s_drvprobe(struct platform_device *pdev)
 	return snd_soc_register_dai(&pdev->dev, &au1xi2s_dai_driver);
 }
 
-static int __devexit au1xi2s_drvremove(struct platform_device *pdev)
+static int au1xi2s_drvremove(struct platform_device *pdev)
 {
 	struct au1xpsc_audio_data *ctx = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/au1x/psc-ac97.c b/sound/soc/au1x/psc-ac97.c
index c541c92..6ba07e3 100644
--- a/sound/soc/au1x/psc-ac97.c
+++ b/sound/soc/au1x/psc-ac97.c
@@ -427,7 +427,7 @@ static int au1xpsc_ac97_drvprobe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit au1xpsc_ac97_drvremove(struct platform_device *pdev)
+static int au1xpsc_ac97_drvremove(struct platform_device *pdev)
 {
 	struct au1xpsc_audio_data *wd = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/au1x/psc-i2s.c b/sound/soc/au1x/psc-i2s.c
index bed90cc..360b4e5 100644
--- a/sound/soc/au1x/psc-i2s.c
+++ b/sound/soc/au1x/psc-i2s.c
@@ -353,7 +353,7 @@ static int au1xpsc_i2s_drvprobe(struct platform_device *pdev)
 	return snd_soc_register_dai(&pdev->dev, &wd->dai_drv);
 }
 
-static int __devexit au1xpsc_i2s_drvremove(struct platform_device *pdev)
+static int au1xpsc_i2s_drvremove(struct platform_device *pdev)
 {
 	struct au1xpsc_audio_data *wd = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/blackfin/bf5xx-ac97-pcm.c b/sound/soc/blackfin/bf5xx-ac97-pcm.c
index dce0f25..7e2f360 100644
--- a/sound/soc/blackfin/bf5xx-ac97-pcm.c
+++ b/sound/soc/blackfin/bf5xx-ac97-pcm.c
@@ -458,7 +458,7 @@ static int bf5xx_soc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &bf5xx_ac97_soc_platform);
 }
 
-static int __devexit bf5xx_soc_platform_remove(struct platform_device *pdev)
+static int bf5xx_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/blackfin/bf5xx-ac97.c b/sound/soc/blackfin/bf5xx-ac97.c
index 6845373..8e41bcb 100644
--- a/sound/soc/blackfin/bf5xx-ac97.c
+++ b/sound/soc/blackfin/bf5xx-ac97.c
@@ -352,7 +352,7 @@ gpio_err:
 	return ret;
 }
 
-static int __devexit asoc_bfin_ac97_remove(struct platform_device *pdev)
+static int asoc_bfin_ac97_remove(struct platform_device *pdev)
 {
 	struct sport_device *sport_handle = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/blackfin/bf5xx-ad1836.c b/sound/soc/blackfin/bf5xx-ad1836.c
index b87f5aa..d23f4b0 100644
--- a/sound/soc/blackfin/bf5xx-ad1836.c
+++ b/sound/soc/blackfin/bf5xx-ad1836.c
@@ -98,7 +98,7 @@ static int bf5xx_ad1836_driver_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit bf5xx_ad1836_driver_remove(struct platform_device *pdev)
+static int bf5xx_ad1836_driver_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/blackfin/bf5xx-i2s-pcm.c b/sound/soc/blackfin/bf5xx-i2s-pcm.c
index b3a5cbe..262c1de 100644
--- a/sound/soc/blackfin/bf5xx-i2s-pcm.c
+++ b/sound/soc/blackfin/bf5xx-i2s-pcm.c
@@ -297,7 +297,7 @@ static int bfin_i2s_soc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &bf5xx_i2s_soc_platform);
 }
 
-static int __devexit bfin_i2s_soc_platform_remove(struct platform_device *pdev)
+static int bfin_i2s_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/blackfin/bf5xx-i2s.c b/sound/soc/blackfin/bf5xx-i2s.c
index f07e3ae..168d88b 100644
--- a/sound/soc/blackfin/bf5xx-i2s.c
+++ b/sound/soc/blackfin/bf5xx-i2s.c
@@ -267,7 +267,7 @@ static int bf5xx_i2s_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit bf5xx_i2s_remove(struct platform_device *pdev)
+static int bf5xx_i2s_remove(struct platform_device *pdev)
 {
 	struct sport_device *sport_handle = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/blackfin/bf5xx-tdm-pcm.c b/sound/soc/blackfin/bf5xx-tdm-pcm.c
index 23a4dec..0e6b888 100644
--- a/sound/soc/blackfin/bf5xx-tdm-pcm.c
+++ b/sound/soc/blackfin/bf5xx-tdm-pcm.c
@@ -322,7 +322,7 @@ static int bf5xx_soc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &bf5xx_tdm_soc_platform);
 }
 
-static int __devexit bf5xx_soc_platform_remove(struct platform_device *pdev)
+static int bf5xx_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/blackfin/bf5xx-tdm.c b/sound/soc/blackfin/bf5xx-tdm.c
index 806f8f0..c1e516e 100644
--- a/sound/soc/blackfin/bf5xx-tdm.c
+++ b/sound/soc/blackfin/bf5xx-tdm.c
@@ -295,7 +295,7 @@ sport_config_err:
 	return ret;
 }
 
-static int __devexit bfin_tdm_remove(struct platform_device *pdev)
+static int bfin_tdm_remove(struct platform_device *pdev)
 {
 	struct sport_device *sport_handle = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/blackfin/bf6xx-i2s.c b/sound/soc/blackfin/bf6xx-i2s.c
index a87b7b2..8f33797 100644
--- a/sound/soc/blackfin/bf6xx-i2s.c
+++ b/sound/soc/blackfin/bf6xx-i2s.c
@@ -208,7 +208,7 @@ static int bfin_i2s_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit bfin_i2s_remove(struct platform_device *pdev)
+static int bfin_i2s_remove(struct platform_device *pdev)
 {
 	struct sport_device *sport = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/blackfin/bfin-eval-adau1373.c b/sound/soc/blackfin/bfin-eval-adau1373.c
index c494e85..4ef9683 100644
--- a/sound/soc/blackfin/bfin-eval-adau1373.c
+++ b/sound/soc/blackfin/bfin-eval-adau1373.c
@@ -157,7 +157,7 @@ static int bfin_eval_adau1373_probe(struct platform_device *pdev)
 	return snd_soc_register_card(&bfin_eval_adau1373);
 }
 
-static int __devexit bfin_eval_adau1373_remove(struct platform_device *pdev)
+static int bfin_eval_adau1373_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/blackfin/bfin-eval-adau1701.c b/sound/soc/blackfin/bfin-eval-adau1701.c
index eb2dab8..3b55081 100644
--- a/sound/soc/blackfin/bfin-eval-adau1701.c
+++ b/sound/soc/blackfin/bfin-eval-adau1701.c
@@ -97,7 +97,7 @@ static int bfin_eval_adau1701_probe(struct platform_device *pdev)
 	return snd_soc_register_card(&bfin_eval_adau1701);
 }
 
-static int __devexit bfin_eval_adau1701_remove(struct platform_device *pdev)
+static int bfin_eval_adau1701_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/blackfin/bfin-eval-adav80x.c b/sound/soc/blackfin/bfin-eval-adav80x.c
index 5d71f76..3b1b61a 100644
--- a/sound/soc/blackfin/bfin-eval-adav80x.c
+++ b/sound/soc/blackfin/bfin-eval-adav80x.c
@@ -122,7 +122,7 @@ static int bfin_eval_adav80x_probe(struct platform_device *pdev)
 	return snd_soc_register_card(&bfin_eval_adav80x);
 }
 
-static int __devexit bfin_eval_adav80x_remove(struct platform_device *pdev)
+static int bfin_eval_adav80x_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/cirrus/edb93xx.c b/sound/soc/cirrus/edb93xx.c
index 0e766a5..5db68cf 100644
--- a/sound/soc/cirrus/edb93xx.c
+++ b/sound/soc/cirrus/edb93xx.c
@@ -101,7 +101,7 @@ static int edb93xx_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit edb93xx_remove(struct platform_device *pdev)
+static int edb93xx_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/cirrus/ep93xx-ac97.c b/sound/soc/cirrus/ep93xx-ac97.c
index e70f53f..f3f50e6 100644
--- a/sound/soc/cirrus/ep93xx-ac97.c
+++ b/sound/soc/cirrus/ep93xx-ac97.c
@@ -402,7 +402,7 @@ fail:
 	return ret;
 }
 
-static int __devexit ep93xx_ac97_remove(struct platform_device *pdev)
+static int ep93xx_ac97_remove(struct platform_device *pdev)
 {
 	struct ep93xx_ac97_info	*info = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/cirrus/ep93xx-i2s.c b/sound/soc/cirrus/ep93xx-i2s.c
index fe62a61..3365d4e 100644
--- a/sound/soc/cirrus/ep93xx-i2s.c
+++ b/sound/soc/cirrus/ep93xx-i2s.c
@@ -422,7 +422,7 @@ fail:
 	return err;
 }
 
-static int __devexit ep93xx_i2s_remove(struct platform_device *pdev)
+static int ep93xx_i2s_remove(struct platform_device *pdev)
 {
 	struct ep93xx_i2s_info *info = dev_get_drvdata(&pdev->dev);
 
diff --git a/sound/soc/cirrus/ep93xx-pcm.c b/sound/soc/cirrus/ep93xx-pcm.c
index b294fb1..72eb7a4 100644
--- a/sound/soc/cirrus/ep93xx-pcm.c
+++ b/sound/soc/cirrus/ep93xx-pcm.c
@@ -218,7 +218,7 @@ static int ep93xx_soc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &ep93xx_soc_platform);
 }
 
-static int __devexit ep93xx_soc_platform_remove(struct platform_device *pdev)
+static int ep93xx_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/cirrus/simone.c b/sound/soc/cirrus/simone.c
index 1c8d9aa..a397bb0 100644
--- a/sound/soc/cirrus/simone.c
+++ b/sound/soc/cirrus/simone.c
@@ -63,7 +63,7 @@ static int simone_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit simone_remove(struct platform_device *pdev)
+static int simone_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/cirrus/snappercl15.c b/sound/soc/cirrus/snappercl15.c
index 7f8dcd2..9d77fe2 100644
--- a/sound/soc/cirrus/snappercl15.c
+++ b/sound/soc/cirrus/snappercl15.c
@@ -119,7 +119,7 @@ static int snappercl15_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit snappercl15_remove(struct platform_device *pdev)
+static int snappercl15_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/codecs/88pm860x-codec.c b/sound/soc/codecs/88pm860x-codec.c
index 0631036..60159c0 100644
--- a/sound/soc/codecs/88pm860x-codec.c
+++ b/sound/soc/codecs/88pm860x-codec.c
@@ -1463,7 +1463,7 @@ out:
 	return -EINVAL;
 }
 
-static int __devexit pm860x_codec_remove(struct platform_device *pdev)
+static int pm860x_codec_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	platform_set_drvdata(pdev, NULL);
diff --git a/sound/soc/codecs/ab8500-codec.c b/sound/soc/codecs/ab8500-codec.c
index 300ea60..6c12ac2 100644
--- a/sound/soc/codecs/ab8500-codec.c
+++ b/sound/soc/codecs/ab8500-codec.c
@@ -2580,7 +2580,7 @@ static int ab8500_codec_driver_probe(struct platform_device *pdev)
 	return status;
 }
 
-static int __devexit ab8500_codec_driver_remove(struct platform_device *pdev)
+static int ab8500_codec_driver_remove(struct platform_device *pdev)
 {
 	dev_info(&pdev->dev, "%s Enter.\n", __func__);
 
diff --git a/sound/soc/codecs/ac97.c b/sound/soc/codecs/ac97.c
index 5c0837b..ef2ae32 100644
--- a/sound/soc/codecs/ac97.c
+++ b/sound/soc/codecs/ac97.c
@@ -124,7 +124,7 @@ static int ac97_probe(struct platform_device *pdev)
 			&soc_codec_dev_ac97, &ac97_dai, 1);
 }
 
-static int __devexit ac97_remove(struct platform_device *pdev)
+static int ac97_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/ad1836.c b/sound/soc/codecs/ad1836.c
index 384ae12..9a92b79 100644
--- a/sound/soc/codecs/ad1836.c
+++ b/sound/soc/codecs/ad1836.c
@@ -383,7 +383,7 @@ static int ad1836_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit ad1836_spi_remove(struct spi_device *spi)
+static int ad1836_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 	return 0;
diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c
index 209b7b5..784554b 100644
--- a/sound/soc/codecs/ad193x.c
+++ b/sound/soc/codecs/ad193x.c
@@ -397,7 +397,7 @@ static int ad193x_spi_probe(struct spi_device *spi)
 			&ad193x_dai, 1);
 }
 
-static int __devexit ad193x_spi_remove(struct spi_device *spi)
+static int ad193x_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 	return 0;
@@ -450,7 +450,7 @@ static int ad193x_i2c_probe(struct i2c_client *client,
 			&ad193x_dai, 1);
 }
 
-static int __devexit ad193x_i2c_remove(struct i2c_client *client)
+static int ad193x_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/ad1980.c b/sound/soc/codecs/ad1980.c
index db6657f..f385342 100644
--- a/sound/soc/codecs/ad1980.c
+++ b/sound/soc/codecs/ad1980.c
@@ -261,7 +261,7 @@ static int ad1980_probe(struct platform_device *pdev)
 			&soc_codec_dev_ad1980, &ad1980_dai, 1);
 }
 
-static int __devexit ad1980_remove(struct platform_device *pdev)
+static int ad1980_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/ad73311.c b/sound/soc/codecs/ad73311.c
index 82c2a7e..b1f2baf 100644
--- a/sound/soc/codecs/ad73311.c
+++ b/sound/soc/codecs/ad73311.c
@@ -47,7 +47,7 @@ static int ad73311_probe(struct platform_device *pdev)
 			&soc_codec_dev_ad73311, &ad73311_dai, 1);
 }
 
-static int __devexit ad73311_remove(struct platform_device *pdev)
+static int ad73311_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/adau1373.c b/sound/soc/codecs/adau1373.c
index e20e267..8d180fe 100644
--- a/sound/soc/codecs/adau1373.c
+++ b/sound/soc/codecs/adau1373.c
@@ -1370,7 +1370,7 @@ static int adau1373_i2c_probe(struct i2c_client *client,
 	return ret;
 }
 
-static int __devexit adau1373_i2c_remove(struct i2c_client *client)
+static int adau1373_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/adau1701.c b/sound/soc/codecs/adau1701.c
index bd7d58f..e6e2c75 100644
--- a/sound/soc/codecs/adau1701.c
+++ b/sound/soc/codecs/adau1701.c
@@ -505,7 +505,7 @@ static int adau1701_i2c_probe(struct i2c_client *client,
 	return ret;
 }
 
-static __devexit int adau1701_i2c_remove(struct i2c_client *client)
+static int adau1701_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/adav80x.c b/sound/soc/codecs/adav80x.c
index cb960fd..3289616 100644
--- a/sound/soc/codecs/adav80x.c
+++ b/sound/soc/codecs/adav80x.c
@@ -860,7 +860,7 @@ static int adav80x_bus_probe(struct device *dev,
 	return ret;
 }
 
-static int __devexit adav80x_bus_remove(struct device *dev)
+static int adav80x_bus_remove(struct device *dev)
 {
 	snd_soc_unregister_codec(dev);
 	kfree(dev_get_drvdata(dev));
@@ -873,7 +873,7 @@ static int adav80x_spi_probe(struct spi_device *spi)
 	return adav80x_bus_probe(&spi->dev, SND_SOC_SPI);
 }
 
-static int __devexit adav80x_spi_remove(struct spi_device *spi)
+static int adav80x_spi_remove(struct spi_device *spi)
 {
 	return adav80x_bus_remove(&spi->dev);
 }
@@ -901,7 +901,7 @@ static int adav80x_i2c_probe(struct i2c_client *client,
 	return adav80x_bus_probe(&client->dev, SND_SOC_I2C);
 }
 
-static int __devexit adav80x_i2c_remove(struct i2c_client *client)
+static int adav80x_i2c_remove(struct i2c_client *client)
 {
 	return adav80x_bus_remove(&client->dev);
 }
diff --git a/sound/soc/codecs/ads117x.c b/sound/soc/codecs/ads117x.c
index a152f5a..506d474 100644
--- a/sound/soc/codecs/ads117x.c
+++ b/sound/soc/codecs/ads117x.c
@@ -42,7 +42,7 @@ static int ads117x_probe(struct platform_device *pdev)
 			&soc_codec_dev_ads117x, &ads117x_dai, 1);
 }
 
-static int __devexit ads117x_remove(struct platform_device *pdev)
+static int ads117x_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/ak4104.c b/sound/soc/codecs/ak4104.c
index b391f26..abca654 100644
--- a/sound/soc/codecs/ak4104.c
+++ b/sound/soc/codecs/ak4104.c
@@ -267,7 +267,7 @@ err:
 	return ret;
 }
 
-static int __devexit ak4104_spi_remove(struct spi_device *spi)
+static int ak4104_spi_remove(struct spi_device *spi)
 {
 	struct ak4104_private *ak4101 = spi_get_drvdata(spi);
 	regmap_exit(ak4101->regmap);
diff --git a/sound/soc/codecs/ak4535.c b/sound/soc/codecs/ak4535.c
index 77e285c..204005b 100644
--- a/sound/soc/codecs/ak4535.c
+++ b/sound/soc/codecs/ak4535.c
@@ -464,7 +464,7 @@ static int ak4535_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int ak4535_i2c_remove(struct i2c_client *client)
+static int ak4535_i2c_remove(struct i2c_client *client)
 {
 	struct ak4535_priv *ak4535 = i2c_get_clientdata(client);
 
diff --git a/sound/soc/codecs/ak4641.c b/sound/soc/codecs/ak4641.c
index 09da215..69c2d21 100644
--- a/sound/soc/codecs/ak4641.c
+++ b/sound/soc/codecs/ak4641.c
@@ -610,7 +610,7 @@ err_out:
 	return ret;
 }
 
-static int __devexit ak4641_i2c_remove(struct i2c_client *i2c)
+static int ak4641_i2c_remove(struct i2c_client *i2c)
 {
 	struct ak4641_platform_data *pdata = i2c->dev.platform_data;
 
diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c
index aba3813..b838fc2 100644
--- a/sound/soc/codecs/ak4642.c
+++ b/sound/soc/codecs/ak4642.c
@@ -540,7 +540,7 @@ static int ak4642_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int ak4642_i2c_remove(struct i2c_client *client)
+static int ak4642_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/ak4671.c b/sound/soc/codecs/ak4671.c
index 93a76cb..9425ebd 100644
--- a/sound/soc/codecs/ak4671.c
+++ b/sound/soc/codecs/ak4671.c
@@ -674,7 +674,7 @@ static int ak4671_i2c_probe(struct i2c_client *client,
 	return ret;
 }
 
-static __devexit int ak4671_i2c_remove(struct i2c_client *client)
+static int ak4671_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/alc5623.c b/sound/soc/codecs/alc5623.c
index 5a7ad19..f479b5e 100644
--- a/sound/soc/codecs/alc5623.c
+++ b/sound/soc/codecs/alc5623.c
@@ -1058,7 +1058,7 @@ static int alc5623_i2c_probe(struct i2c_client *client,
 	return ret;
 }
 
-static __devexit int alc5623_i2c_remove(struct i2c_client *client)
+static int alc5623_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/alc5632.c b/sound/soc/codecs/alc5632.c
index 7026e3d..856c8ef 100644
--- a/sound/soc/codecs/alc5632.c
+++ b/sound/soc/codecs/alc5632.c
@@ -1179,7 +1179,7 @@ static int alc5632_i2c_probe(struct i2c_client *client,
 	return ret;
 }
 
-static __devexit int alc5632_i2c_remove(struct i2c_client *client)
+static int alc5632_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c
index 3d637b2..8238998 100644
--- a/sound/soc/codecs/cs4271.c
+++ b/sound/soc/codecs/cs4271.c
@@ -585,7 +585,7 @@ static int cs4271_spi_probe(struct spi_device *spi)
 		&cs4271_dai, 1);
 }
 
-static int __devexit cs4271_spi_remove(struct spi_device *spi)
+static int cs4271_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 	return 0;
@@ -625,7 +625,7 @@ static int cs4271_i2c_probe(struct i2c_client *client,
 		&cs4271_dai, 1);
 }
 
-static int __devexit cs4271_i2c_remove(struct i2c_client *client)
+static int cs4271_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/cs42l73.c b/sound/soc/codecs/cs42l73.c
index 362c20b..c82a0f8 100644
--- a/sound/soc/codecs/cs42l73.c
+++ b/sound/soc/codecs/cs42l73.c
@@ -1406,7 +1406,7 @@ static int cs42l73_i2c_probe(struct i2c_client *i2c_client,
 	return 0;
 }
 
-static __devexit int cs42l73_i2c_remove(struct i2c_client *client)
+static int cs42l73_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/da7210.c b/sound/soc/codecs/da7210.c
index 0c3b09c..e456463 100644
--- a/sound/soc/codecs/da7210.c
+++ b/sound/soc/codecs/da7210.c
@@ -1257,7 +1257,7 @@ err_regmap:
 	return ret;
 }
 
-static int __devexit da7210_i2c_remove(struct i2c_client *client)
+static int da7210_i2c_remove(struct i2c_client *client)
 {
 	struct da7210_priv *da7210 = i2c_get_clientdata(client);
 
@@ -1359,7 +1359,7 @@ err_regmap:
 	return ret;
 }
 
-static int __devexit da7210_spi_remove(struct spi_device *spi)
+static int da7210_spi_remove(struct spi_device *spi)
 {
 	struct da7210_priv *da7210 = spi_get_drvdata(spi);
 	snd_soc_unregister_codec(&spi->dev);
diff --git a/sound/soc/codecs/da732x.c b/sound/soc/codecs/da732x.c
index 850bfed..cea2827 100644
--- a/sound/soc/codecs/da732x.c
+++ b/sound/soc/codecs/da732x.c
@@ -1596,7 +1596,7 @@ err:
 	return ret;
 }
 
-static __devexit int da732x_i2c_remove(struct i2c_client *client)
+static int da732x_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 
diff --git a/sound/soc/codecs/da9055.c b/sound/soc/codecs/da9055.c
index cf8dfeb..3549a34 100644
--- a/sound/soc/codecs/da9055.c
+++ b/sound/soc/codecs/da9055.c
@@ -1517,7 +1517,7 @@ static int da9055_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static int __devexit da9055_remove(struct i2c_client *client)
+static int da9055_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/dfbmcs320.c b/sound/soc/codecs/dfbmcs320.c
index 61ccf30..4f4f7f4 100644
--- a/sound/soc/codecs/dfbmcs320.c
+++ b/sound/soc/codecs/dfbmcs320.c
@@ -39,7 +39,7 @@ static int dfbmcs320_probe(struct platform_device *pdev)
 			&dfbmcs320_dai, 1);
 }
 
-static int __devexit dfbmcs320_remove(struct platform_device *pdev)
+static int dfbmcs320_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 
diff --git a/sound/soc/codecs/dmic.c b/sound/soc/codecs/dmic.c
index 0dc7fab..66967ba 100644
--- a/sound/soc/codecs/dmic.c
+++ b/sound/soc/codecs/dmic.c
@@ -72,7 +72,7 @@ static int dmic_dev_probe(struct platform_device *pdev)
 			&soc_dmic, &dmic_dai, 1);
 }
 
-static int __devexit dmic_dev_remove(struct platform_device *pdev)
+static int dmic_dev_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/isabelle.c b/sound/soc/codecs/isabelle.c
index 8853a83..054a18f 100644
--- a/sound/soc/codecs/isabelle.c
+++ b/sound/soc/codecs/isabelle.c
@@ -1145,7 +1145,7 @@ static int isabelle_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static int __devexit isabelle_i2c_remove(struct i2c_client *client)
+static int isabelle_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/jz4740.c b/sound/soc/codecs/jz4740.c
index 3606f26..d991529 100644
--- a/sound/soc/codecs/jz4740.c
+++ b/sound/soc/codecs/jz4740.c
@@ -380,7 +380,7 @@ static int jz4740_codec_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit jz4740_codec_remove(struct platform_device *pdev)
+static int jz4740_codec_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 
diff --git a/sound/soc/codecs/lm4857.c b/sound/soc/codecs/lm4857.c
index 27e7991..1d004a4 100644
--- a/sound/soc/codecs/lm4857.c
+++ b/sound/soc/codecs/lm4857.c
@@ -228,7 +228,7 @@ static int lm4857_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static int __devexit lm4857_i2c_remove(struct i2c_client *i2c)
+static int lm4857_i2c_remove(struct i2c_client *i2c)
 {
 	snd_soc_unregister_codec(&i2c->dev);
 	return 0;
diff --git a/sound/soc/codecs/lm49453.c b/sound/soc/codecs/lm49453.c
index 568e499..a008933 100644
--- a/sound/soc/codecs/lm49453.c
+++ b/sound/soc/codecs/lm49453.c
@@ -1517,7 +1517,7 @@ static int lm49453_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static int __devexit lm49453_i2c_remove(struct i2c_client *client)
+static int lm49453_i2c_remove(struct i2c_client *client)
 {
 	struct lm49453_priv *lm49453 = i2c_get_clientdata(client);
 
diff --git a/sound/soc/codecs/max9768.c b/sound/soc/codecs/max9768.c
index 4ece6ab..63ccd6f 100644
--- a/sound/soc/codecs/max9768.c
+++ b/sound/soc/codecs/max9768.c
@@ -210,7 +210,7 @@ static int max9768_i2c_probe(struct i2c_client *client,
 	return err;
 }
 
-static int __devexit max9768_i2c_remove(struct i2c_client *client)
+static int max9768_i2c_remove(struct i2c_client *client)
 {
 	struct max9768 *max9768 = i2c_get_clientdata(client);
 
diff --git a/sound/soc/codecs/max98088.c b/sound/soc/codecs/max98088.c
index b858264..a4c16fd 100644
--- a/sound/soc/codecs/max98088.c
+++ b/sound/soc/codecs/max98088.c
@@ -2084,7 +2084,7 @@ static int max98088_i2c_probe(struct i2c_client *i2c,
        return ret;
 }
 
-static int __devexit max98088_i2c_remove(struct i2c_client *client)
+static int max98088_i2c_remove(struct i2c_client *client)
 {
        snd_soc_unregister_codec(&client->dev);
        return 0;
diff --git a/sound/soc/codecs/max98095.c b/sound/soc/codecs/max98095.c
index 1e17aef..41cdd16 100644
--- a/sound/soc/codecs/max98095.c
+++ b/sound/soc/codecs/max98095.c
@@ -2511,7 +2511,7 @@ static int max98095_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static int __devexit max98095_i2c_remove(struct i2c_client *client)
+static int max98095_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/max9850.c b/sound/soc/codecs/max9850.c
index 261b62f..8720ebc 100644
--- a/sound/soc/codecs/max9850.c
+++ b/sound/soc/codecs/max9850.c
@@ -347,7 +347,7 @@ static int max9850_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int max9850_i2c_remove(struct i2c_client *client)
+static int max9850_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/max9877.c b/sound/soc/codecs/max9877.c
index 5243340..0c01469 100644
--- a/sound/soc/codecs/max9877.c
+++ b/sound/soc/codecs/max9877.c
@@ -268,7 +268,7 @@ static int max9877_i2c_probe(struct i2c_client *client,
 	return 0;
 }
 
-static __devexit int max9877_i2c_remove(struct i2c_client *client)
+static int max9877_i2c_remove(struct i2c_client *client)
 {
 	i2c = NULL;
 
diff --git a/sound/soc/codecs/ml26124.c b/sound/soc/codecs/ml26124.c
index d3d6b26..d38a05b 100644
--- a/sound/soc/codecs/ml26124.c
+++ b/sound/soc/codecs/ml26124.c
@@ -649,7 +649,7 @@ static int ml26124_i2c_probe(struct i2c_client *i2c,
 			&soc_codec_dev_ml26124, &ml26124_dai, 1);
 }
 
-static __devexit int ml26124_i2c_remove(struct i2c_client *client)
+static int ml26124_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/omap-hdmi.c b/sound/soc/codecs/omap-hdmi.c
index 8ddc3d56..529d064 100644
--- a/sound/soc/codecs/omap-hdmi.c
+++ b/sound/soc/codecs/omap-hdmi.c
@@ -45,7 +45,7 @@ static int omap_hdmi_codec_probe(struct platform_device *pdev)
 			&omap_hdmi_codec_dai, 1);
 }
 
-static __devexit int omap_hdmi_codec_remove(struct platform_device *pdev)
+static int omap_hdmi_codec_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/pcm3008.c b/sound/soc/codecs/pcm3008.c
index 74561f3..f2a6282 100644
--- a/sound/soc/codecs/pcm3008.c
+++ b/sound/soc/codecs/pcm3008.c
@@ -155,7 +155,7 @@ static int pcm3008_codec_probe(struct platform_device *pdev)
 			&soc_codec_dev_pcm3008, &pcm3008_dai, 1);
 }
 
-static int __devexit pcm3008_codec_remove(struct platform_device *pdev)
+static int pcm3008_codec_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/rt5631.c b/sound/soc/codecs/rt5631.c
index 32d5ff4..e8a096c 100644
--- a/sound/soc/codecs/rt5631.c
+++ b/sound/soc/codecs/rt5631.c
@@ -1748,7 +1748,7 @@ static int rt5631_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int rt5631_i2c_remove(struct i2c_client *client)
+static int rt5631_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index 40d4fc1..dca33c6 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -1422,7 +1422,7 @@ static int sgtl5000_i2c_probe(struct i2c_client *client,
 	return ret;
 }
 
-static __devexit int sgtl5000_i2c_remove(struct i2c_client *client)
+static int sgtl5000_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 
diff --git a/sound/soc/codecs/si476x.c b/sound/soc/codecs/si476x.c
index 8c46732..f2d61a1 100644
--- a/sound/soc/codecs/si476x.c
+++ b/sound/soc/codecs/si476x.c
@@ -232,7 +232,7 @@ static int si476x_platform_probe(struct platform_device *pdev)
 				      &si476x_dai, 1);
 }
 
-static int __devexit si476x_platform_remove(struct platform_device *pdev)
+static int si476x_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/sn95031.c b/sound/soc/codecs/sn95031.c
index 98529c5..d1ae869d 100644
--- a/sound/soc/codecs/sn95031.c
+++ b/sound/soc/codecs/sn95031.c
@@ -903,7 +903,7 @@ static int sn95031_device_probe(struct platform_device *pdev)
 			sn95031_dais, ARRAY_SIZE(sn95031_dais));
 }
 
-static int __devexit sn95031_device_remove(struct platform_device *pdev)
+static int sn95031_device_remove(struct platform_device *pdev)
 {
 	pr_debug("codec device remove called\n");
 	snd_soc_unregister_codec(&pdev->dev);
diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c
index 6fa63cc..f8d30e5 100644
--- a/sound/soc/codecs/ssm2602.c
+++ b/sound/soc/codecs/ssm2602.c
@@ -713,7 +713,7 @@ static int ssm2602_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit ssm2602_spi_remove(struct spi_device *spi)
+static int ssm2602_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 	return 0;
@@ -759,7 +759,7 @@ static int ssm2602_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static int __devexit ssm2602_i2c_remove(struct i2c_client *client)
+static int ssm2602_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c
index 2309f5a..6aa2753 100644
--- a/sound/soc/codecs/sta32x.c
+++ b/sound/soc/codecs/sta32x.c
@@ -1033,7 +1033,7 @@ static int sta32x_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int sta32x_i2c_remove(struct i2c_client *client)
+static int sta32x_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/sta529.c b/sound/soc/codecs/sta529.c
index 570a09e..09ed245 100644
--- a/sound/soc/codecs/sta529.c
+++ b/sound/soc/codecs/sta529.c
@@ -412,7 +412,7 @@ static int sta529_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static int __devexit sta529_i2c_remove(struct i2c_client *client)
+static int sta529_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 
diff --git a/sound/soc/codecs/stac9766.c b/sound/soc/codecs/stac9766.c
index 20ad890..2eda85ba 100644
--- a/sound/soc/codecs/stac9766.c
+++ b/sound/soc/codecs/stac9766.c
@@ -391,7 +391,7 @@ static int stac9766_probe(struct platform_device *pdev)
 			&soc_codec_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
 }
 
-static int __devexit stac9766_remove(struct platform_device *pdev)
+static int stac9766_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/tlv320aic32x4.c b/sound/soc/codecs/tlv320aic32x4.c
index 1d45339..5d71c86 100644
--- a/sound/soc/codecs/tlv320aic32x4.c
+++ b/sound/soc/codecs/tlv320aic32x4.c
@@ -748,7 +748,7 @@ static int aic32x4_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int aic32x4_i2c_remove(struct i2c_client *client)
+static int aic32x4_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c
index 8af052b..922f9b3a 100644
--- a/sound/soc/codecs/tlv320dac33.c
+++ b/sound/soc/codecs/tlv320dac33.c
@@ -1586,7 +1586,7 @@ err_gpio:
 	return ret;
 }
 
-static int __devexit dac33_i2c_remove(struct i2c_client *client)
+static int dac33_i2c_remove(struct i2c_client *client)
 {
 	struct tlv320dac33_priv *dac33 = i2c_get_clientdata(client);
 
diff --git a/sound/soc/codecs/tpa6130a2.c b/sound/soc/codecs/tpa6130a2.c
index f1c0399..eb3de04 100644
--- a/sound/soc/codecs/tpa6130a2.c
+++ b/sound/soc/codecs/tpa6130a2.c
@@ -455,7 +455,7 @@ err_gpio:
 	return ret;
 }
 
-static int __devexit tpa6130a2_remove(struct i2c_client *client)
+static int tpa6130a2_remove(struct i2c_client *client)
 {
 	struct tpa6130a2_data *data = i2c_get_clientdata(client);
 
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index c53c7fa..63b280b 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -2340,7 +2340,7 @@ static int twl4030_codec_probe(struct platform_device *pdev)
 			twl4030_dai, ARRAY_SIZE(twl4030_dai));
 }
 
-static int __devexit twl4030_codec_remove(struct platform_device *pdev)
+static int twl4030_codec_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c
index e3256ba..3fc3fc6 100644
--- a/sound/soc/codecs/twl6040.c
+++ b/sound/soc/codecs/twl6040.c
@@ -1235,7 +1235,7 @@ static int twl6040_codec_probe(struct platform_device *pdev)
 				      twl6040_dai, ARRAY_SIZE(twl6040_dai));
 }
 
-static int __devexit twl6040_codec_remove(struct platform_device *pdev)
+static int twl6040_codec_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/uda134x.c b/sound/soc/codecs/uda134x.c
index 6c5a395..6d0aa44 100644
--- a/sound/soc/codecs/uda134x.c
+++ b/sound/soc/codecs/uda134x.c
@@ -607,7 +607,7 @@ static int uda134x_codec_probe(struct platform_device *pdev)
 			&soc_codec_dev_uda134x, &uda134x_dai, 1);
 }
 
-static int __devexit uda134x_codec_remove(struct platform_device *pdev)
+static int uda134x_codec_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/uda1380.c b/sound/soc/codecs/uda1380.c
index 289dfe1..474b812 100644
--- a/sound/soc/codecs/uda1380.c
+++ b/sound/soc/codecs/uda1380.c
@@ -814,7 +814,7 @@ static int uda1380_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static int __devexit uda1380_i2c_remove(struct i2c_client *i2c)
+static int uda1380_i2c_remove(struct i2c_client *i2c)
 {
 	snd_soc_unregister_codec(&i2c->dev);
 	return 0;
diff --git a/sound/soc/codecs/wl1273.c b/sound/soc/codecs/wl1273.c
index 2ae0302..54cd3da 100644
--- a/sound/soc/codecs/wl1273.c
+++ b/sound/soc/codecs/wl1273.c
@@ -491,7 +491,7 @@ static int wl1273_platform_probe(struct platform_device *pdev)
 				      &wl1273_dai, 1);
 }
 
-static int __devexit wl1273_platform_remove(struct platform_device *pdev)
+static int wl1273_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm0010.c b/sound/soc/codecs/wm0010.c
index c449178..132fee5 100644
--- a/sound/soc/codecs/wm0010.c
+++ b/sound/soc/codecs/wm0010.c
@@ -963,7 +963,7 @@ static int wm0010_spi_probe(struct spi_device *spi)
 	return 0;
 }
 
-static int __devexit wm0010_spi_remove(struct spi_device *spi)
+static int wm0010_spi_remove(struct spi_device *spi)
 {
 	struct wm0010_priv *wm0010 = spi_get_drvdata(spi);
 
diff --git a/sound/soc/codecs/wm1250-ev1.c b/sound/soc/codecs/wm1250-ev1.c
index 18e58bd..13de5ac 100644
--- a/sound/soc/codecs/wm1250-ev1.c
+++ b/sound/soc/codecs/wm1250-ev1.c
@@ -237,7 +237,7 @@ static int wm1250_ev1_probe(struct i2c_client *i2c,
 	return 0;
 }
 
-static int __devexit wm1250_ev1_remove(struct i2c_client *i2c)
+static int wm1250_ev1_remove(struct i2c_client *i2c)
 {
 	snd_soc_unregister_codec(&i2c->dev);
 	wm1250_ev1_free(i2c);
diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index 9956b74..637f8d1 100644
--- a/sound/soc/codecs/wm2000.c
+++ b/sound/soc/codecs/wm2000.c
@@ -871,7 +871,7 @@ out:
 	return ret;
 }
 
-static __devexit int wm2000_i2c_remove(struct i2c_client *i2c)
+static int wm2000_i2c_remove(struct i2c_client *i2c)
 {
 	snd_soc_unregister_codec(&i2c->dev);
 
diff --git a/sound/soc/codecs/wm2200.c b/sound/soc/codecs/wm2200.c
index b6428c6..761304b 100644
--- a/sound/soc/codecs/wm2200.c
+++ b/sound/soc/codecs/wm2200.c
@@ -2388,7 +2388,7 @@ err:
 	return ret;
 }
 
-static __devexit int wm2200_i2c_remove(struct i2c_client *i2c)
+static int wm2200_i2c_remove(struct i2c_client *i2c)
 {
 	struct wm2200_priv *wm2200 = i2c_get_clientdata(i2c);
 
diff --git a/sound/soc/codecs/wm5100.c b/sound/soc/codecs/wm5100.c
index d5d8b52..812c326 100644
--- a/sound/soc/codecs/wm5100.c
+++ b/sound/soc/codecs/wm5100.c
@@ -2639,7 +2639,7 @@ err:
 	return ret;
 }
 
-static __devexit int wm5100_i2c_remove(struct i2c_client *i2c)
+static int wm5100_i2c_remove(struct i2c_client *i2c)
 {
 	struct wm5100_priv *wm5100 = i2c_get_clientdata(i2c);
 
diff --git a/sound/soc/codecs/wm5102.c b/sound/soc/codecs/wm5102.c
index 0210a08..4fc8fa7 100644
--- a/sound/soc/codecs/wm5102.c
+++ b/sound/soc/codecs/wm5102.c
@@ -1495,7 +1495,7 @@ static int wm5102_probe(struct platform_device *pdev)
 				      wm5102_dai, ARRAY_SIZE(wm5102_dai));
 }
 
-static int __devexit wm5102_remove(struct platform_device *pdev)
+static int wm5102_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index 59f5d16..5bb182f 100644
--- a/sound/soc/codecs/wm5110.c
+++ b/sound/soc/codecs/wm5110.c
@@ -988,7 +988,7 @@ static int wm5110_probe(struct platform_device *pdev)
 				      wm5110_dai, ARRAY_SIZE(wm5110_dai));
 }
 
-static int __devexit wm5110_remove(struct platform_device *pdev)
+static int wm5110_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c
index 24eaf4d..154655f 100644
--- a/sound/soc/codecs/wm8350.c
+++ b/sound/soc/codecs/wm8350.c
@@ -1633,7 +1633,7 @@ static int wm8350_probe(struct platform_device *pdev)
 			&wm8350_dai, 1);
 }
 
-static int __devexit wm8350_remove(struct platform_device *pdev)
+static int wm8350_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8400.c b/sound/soc/codecs/wm8400.c
index fde7b17..ae2b6bc 100644
--- a/sound/soc/codecs/wm8400.c
+++ b/sound/soc/codecs/wm8400.c
@@ -1445,7 +1445,7 @@ static int wm8400_probe(struct platform_device *pdev)
 			&wm8400_dai, 1);
 }
 
-static int __devexit wm8400_remove(struct platform_device *pdev)
+static int wm8400_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8510.c b/sound/soc/codecs/wm8510.c
index 28dbbdc..a18ed57 100644
--- a/sound/soc/codecs/wm8510.c
+++ b/sound/soc/codecs/wm8510.c
@@ -670,7 +670,7 @@ static int wm8510_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit wm8510_spi_remove(struct spi_device *spi)
+static int wm8510_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 	return 0;
@@ -711,7 +711,7 @@ static int wm8510_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8510_i2c_remove(struct i2c_client *client)
+static int wm8510_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8523.c b/sound/soc/codecs/wm8523.c
index c05c55d..f3a13bd 100644
--- a/sound/soc/codecs/wm8523.c
+++ b/sound/soc/codecs/wm8523.c
@@ -528,7 +528,7 @@ err_enable:
 	return ret;
 }
 
-static __devexit int wm8523_i2c_remove(struct i2c_client *client)
+static int wm8523_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8711.c b/sound/soc/codecs/wm8711.c
index a366fdc..f68b52f 100644
--- a/sound/soc/codecs/wm8711.c
+++ b/sound/soc/codecs/wm8711.c
@@ -451,7 +451,7 @@ static int wm8711_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit wm8711_spi_remove(struct spi_device *spi)
+static int wm8711_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 
@@ -493,7 +493,7 @@ static int wm8711_i2c_probe(struct i2c_client *client,
 	return ret;
 }
 
-static __devexit int wm8711_i2c_remove(struct i2c_client *client)
+static int wm8711_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8727.c b/sound/soc/codecs/wm8727.c
index 3bc03f8..462f5e4 100644
--- a/sound/soc/codecs/wm8727.c
+++ b/sound/soc/codecs/wm8727.c
@@ -51,7 +51,7 @@ static int wm8727_probe(struct platform_device *pdev)
 			&soc_codec_dev_wm8727, &wm8727_dai, 1);
 }
 
-static int __devexit wm8727_remove(struct platform_device *pdev)
+static int wm8727_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8728.c b/sound/soc/codecs/wm8728.c
index 245c2b4..ce7105a 100644
--- a/sound/soc/codecs/wm8728.c
+++ b/sound/soc/codecs/wm8728.c
@@ -302,7 +302,7 @@ static int wm8728_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit wm8728_spi_remove(struct spi_device *spi)
+static int wm8728_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 
@@ -344,7 +344,7 @@ static int wm8728_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8728_i2c_remove(struct i2c_client *client)
+static int wm8728_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index 71617ad..dfb93d8 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -661,7 +661,7 @@ static int wm8731_spi_probe(struct spi_device *spi)
 	return 0;
 }
 
-static int __devexit wm8731_spi_remove(struct spi_device *spi)
+static int wm8731_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 	return 0;
@@ -710,7 +710,7 @@ static int wm8731_i2c_probe(struct i2c_client *i2c,
 	return 0;
 }
 
-static __devexit int wm8731_i2c_remove(struct i2c_client *client)
+static int wm8731_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8737.c b/sound/soc/codecs/wm8737.c
index 9e1a100..825b14d 100644
--- a/sound/soc/codecs/wm8737.c
+++ b/sound/soc/codecs/wm8737.c
@@ -679,7 +679,7 @@ static int wm8737_i2c_probe(struct i2c_client *i2c,
 
 }
 
-static __devexit int wm8737_i2c_remove(struct i2c_client *client)
+static int wm8737_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 
@@ -737,7 +737,7 @@ static int wm8737_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit wm8737_spi_remove(struct spi_device *spi)
+static int wm8737_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 
diff --git a/sound/soc/codecs/wm8741.c b/sound/soc/codecs/wm8741.c
index 019558c..2709399 100644
--- a/sound/soc/codecs/wm8741.c
+++ b/sound/soc/codecs/wm8741.c
@@ -596,7 +596,7 @@ static int wm8741_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit wm8741_spi_remove(struct spi_device *spi)
+static int wm8741_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8750.c b/sound/soc/codecs/wm8750.c
index 28256c4..6549c6f 100644
--- a/sound/soc/codecs/wm8750.c
+++ b/sound/soc/codecs/wm8750.c
@@ -791,7 +791,7 @@ static int wm8750_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit wm8750_spi_remove(struct spi_device *spi)
+static int wm8750_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 	return 0;
@@ -840,7 +840,7 @@ static int wm8750_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8750_i2c_remove(struct i2c_client *client)
+static int wm8750_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index c22f580..1c51110 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -1585,7 +1585,7 @@ err:
 	return ret;
 }
 
-static int __devexit wm8753_spi_remove(struct spi_device *spi)
+static int wm8753_spi_remove(struct spi_device *spi)
 {
 	struct wm8753_priv *wm8753 = spi_get_drvdata(spi);
 
@@ -1643,7 +1643,7 @@ err:
 	return ret;
 }
 
-static __devexit int wm8753_i2c_remove(struct i2c_client *client)
+static int wm8753_i2c_remove(struct i2c_client *client)
 {
 	struct wm8753_priv *wm8753 = i2c_get_clientdata(client);
 
diff --git a/sound/soc/codecs/wm8770.c b/sound/soc/codecs/wm8770.c
index 053a2f5..89a18d8 100644
--- a/sound/soc/codecs/wm8770.c
+++ b/sound/soc/codecs/wm8770.c
@@ -697,7 +697,7 @@ static int wm8770_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit wm8770_spi_remove(struct spi_device *spi)
+static int wm8770_spi_remove(struct spi_device *spi)
 {
 	struct wm8770_priv *wm8770 = spi_get_drvdata(spi);
 	int i;
diff --git a/sound/soc/codecs/wm8776.c b/sound/soc/codecs/wm8776.c
index 93bca00..146c41d 100644
--- a/sound/soc/codecs/wm8776.c
+++ b/sound/soc/codecs/wm8776.c
@@ -514,7 +514,7 @@ static int wm8776_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit wm8776_spi_remove(struct spi_device *spi)
+static int wm8776_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 	return 0;
@@ -555,7 +555,7 @@ static int wm8776_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8776_i2c_remove(struct i2c_client *client)
+static int wm8776_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8782.c b/sound/soc/codecs/wm8782.c
index 4b752b7..f1fdbf6 100644
--- a/sound/soc/codecs/wm8782.c
+++ b/sound/soc/codecs/wm8782.c
@@ -48,7 +48,7 @@ static int wm8782_probe(struct platform_device *pdev)
 			&soc_codec_dev_wm8782, &wm8782_dai, 1);
 }
 
-static int __devexit wm8782_remove(struct platform_device *pdev)
+static int wm8782_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8804.c b/sound/soc/codecs/wm8804.c
index cad8ea0..47e7065 100644
--- a/sound/soc/codecs/wm8804.c
+++ b/sound/soc/codecs/wm8804.c
@@ -725,7 +725,7 @@ static int wm8804_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit wm8804_spi_remove(struct spi_device *spi)
+static int wm8804_spi_remove(struct spi_device *spi)
 {
 	struct wm8804_priv *wm8804 = spi_get_drvdata(spi);
 	snd_soc_unregister_codec(&spi->dev);
@@ -775,7 +775,7 @@ err:
 	return ret;
 }
 
-static __devexit int wm8804_i2c_remove(struct i2c_client *i2c)
+static int wm8804_i2c_remove(struct i2c_client *i2c)
 {
 	struct wm8804_priv *wm8804 = i2c_get_clientdata(i2c);
 
diff --git a/sound/soc/codecs/wm8900.c b/sound/soc/codecs/wm8900.c
index 375720e..6a453a2 100644
--- a/sound/soc/codecs/wm8900.c
+++ b/sound/soc/codecs/wm8900.c
@@ -1269,7 +1269,7 @@ static int wm8900_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit wm8900_spi_remove(struct spi_device *spi)
+static int wm8900_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 	return 0;
@@ -1309,7 +1309,7 @@ static int wm8900_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8900_i2c_remove(struct i2c_client *client)
+static int wm8900_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index 930b1a2..eca4ff1 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -2206,7 +2206,7 @@ err:
 	return ret;
 }
 
-static __devexit int wm8903_i2c_remove(struct i2c_client *client)
+static int wm8903_i2c_remove(struct i2c_client *client)
 {
 	struct wm8903_priv *wm8903 = i2c_get_clientdata(client);
 
diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
index 6a150d0..331b7bc 100644
--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -2247,7 +2247,7 @@ err_enable:
 	return ret;
 }
 
-static __devexit int wm8904_i2c_remove(struct i2c_client *client)
+static int wm8904_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8940.c b/sound/soc/codecs/wm8940.c
index d80fbcf..aba34cf 100644
--- a/sound/soc/codecs/wm8940.c
+++ b/sound/soc/codecs/wm8940.c
@@ -762,7 +762,7 @@ static int wm8940_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8940_i2c_remove(struct i2c_client *client)
+static int wm8940_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 
diff --git a/sound/soc/codecs/wm8955.c b/sound/soc/codecs/wm8955.c
index b1fd4d7..0ebcf2e 100644
--- a/sound/soc/codecs/wm8955.c
+++ b/sound/soc/codecs/wm8955.c
@@ -1045,7 +1045,7 @@ err:
 	return ret;
 }
 
-static __devexit int wm8955_i2c_remove(struct i2c_client *client)
+static int wm8955_i2c_remove(struct i2c_client *client)
 {
 	struct wm8955_priv *wm8955 = i2c_get_clientdata(client);
 
diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
index e22a440..a29b5df 100644
--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -1062,7 +1062,7 @@ static int wm8960_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8960_i2c_remove(struct i2c_client *client)
+static int wm8960_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8961.c b/sound/soc/codecs/wm8961.c
index f862f7b..9c0163c 100644
--- a/sound/soc/codecs/wm8961.c
+++ b/sound/soc/codecs/wm8961.c
@@ -993,7 +993,7 @@ static int wm8961_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8961_i2c_remove(struct i2c_client *client)
+static int wm8961_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 
diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index dccc56f..7e82420 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3703,7 +3703,7 @@ err:
 	return ret;
 }
 
-static __devexit int wm8962_i2c_remove(struct i2c_client *client)
+static int wm8962_i2c_remove(struct i2c_client *client)
 {
 	struct wm8962_priv *wm8962 = dev_get_drvdata(&client->dev);
 
diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c
index 6028e99..d8a07b7 100644
--- a/sound/soc/codecs/wm8971.c
+++ b/sound/soc/codecs/wm8971.c
@@ -741,7 +741,7 @@ static int wm8971_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8971_i2c_remove(struct i2c_client *client)
+static int wm8971_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8974.c b/sound/soc/codecs/wm8974.c
index a1c8c52..f7c428b 100644
--- a/sound/soc/codecs/wm8974.c
+++ b/sound/soc/codecs/wm8974.c
@@ -636,7 +636,7 @@ static int wm8974_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8974_i2c_remove(struct i2c_client *client)
+static int wm8974_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 
diff --git a/sound/soc/codecs/wm8978.c b/sound/soc/codecs/wm8978.c
index 7028f1a..32e0085 100644
--- a/sound/soc/codecs/wm8978.c
+++ b/sound/soc/codecs/wm8978.c
@@ -1079,7 +1079,7 @@ err:
 	return ret;
 }
 
-static __devexit int wm8978_i2c_remove(struct i2c_client *client)
+static int wm8978_i2c_remove(struct i2c_client *client)
 {
 	struct wm8978_priv *wm8978 = i2c_get_clientdata(client);
 
diff --git a/sound/soc/codecs/wm8983.c b/sound/soc/codecs/wm8983.c
index 9b2b612..910bdef 100644
--- a/sound/soc/codecs/wm8983.c
+++ b/sound/soc/codecs/wm8983.c
@@ -1110,7 +1110,7 @@ static int wm8983_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit wm8983_spi_remove(struct spi_device *spi)
+static int wm8983_spi_remove(struct spi_device *spi)
 {
 	snd_soc_unregister_codec(&spi->dev);
 	return 0;
@@ -1152,7 +1152,7 @@ static int wm8983_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8983_i2c_remove(struct i2c_client *client)
+static int wm8983_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8985.c b/sound/soc/codecs/wm8985.c
index 76c0503..e49b1a6 100644
--- a/sound/soc/codecs/wm8985.c
+++ b/sound/soc/codecs/wm8985.c
@@ -1142,7 +1142,7 @@ err:
 	return ret;
 }
 
-static int __devexit wm8985_spi_remove(struct spi_device *spi)
+static int wm8985_spi_remove(struct spi_device *spi)
 {
 	struct wm8985_priv *wm8985 = spi_get_drvdata(spi);
 
@@ -1195,7 +1195,7 @@ err:
 	return ret;
 }
 
-static __devexit int wm8985_i2c_remove(struct i2c_client *i2c)
+static int wm8985_i2c_remove(struct i2c_client *i2c)
 {
 	struct wm8985_priv *wm8985 = i2c_get_clientdata(i2c);
 
diff --git a/sound/soc/codecs/wm8988.c b/sound/soc/codecs/wm8988.c
index 20b0425..a6f7523 100644
--- a/sound/soc/codecs/wm8988.c
+++ b/sound/soc/codecs/wm8988.c
@@ -899,7 +899,7 @@ static int wm8988_spi_probe(struct spi_device *spi)
 	return ret;
 }
 
-static int __devexit wm8988_spi_remove(struct spi_device *spi)
+static int wm8988_spi_remove(struct spi_device *spi)
 {
 	struct wm8988_priv *wm8988 = spi_get_drvdata(spi);
 	snd_soc_unregister_codec(&spi->dev);
@@ -946,7 +946,7 @@ static int wm8988_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8988_i2c_remove(struct i2c_client *client)
+static int wm8988_i2c_remove(struct i2c_client *client)
 {
 	struct wm8988_priv *wm8988 = i2c_get_clientdata(client);
 	snd_soc_unregister_codec(&client->dev);
diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c
index a666c16..1809af7 100644
--- a/sound/soc/codecs/wm8990.c
+++ b/sound/soc/codecs/wm8990.c
@@ -1401,7 +1401,7 @@ static int wm8990_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8990_i2c_remove(struct i2c_client *client)
+static int wm8990_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 
diff --git a/sound/soc/codecs/wm8991.c b/sound/soc/codecs/wm8991.c
index 556e43f..ebd9d2f 100644
--- a/sound/soc/codecs/wm8991.c
+++ b/sound/soc/codecs/wm8991.c
@@ -1376,7 +1376,7 @@ static int wm8991_i2c_probe(struct i2c_client *i2c,
 	return ret;
 }
 
-static __devexit int wm8991_i2c_remove(struct i2c_client *client)
+static int wm8991_i2c_remove(struct i2c_client *client)
 {
 	snd_soc_unregister_codec(&client->dev);
 
diff --git a/sound/soc/codecs/wm8993.c b/sound/soc/codecs/wm8993.c
index 0a7c29a..738f42d 100644
--- a/sound/soc/codecs/wm8993.c
+++ b/sound/soc/codecs/wm8993.c
@@ -1749,7 +1749,7 @@ err:
 	return ret;
 }
 
-static __devexit int wm8993_i2c_remove(struct i2c_client *i2c)
+static int wm8993_i2c_remove(struct i2c_client *i2c)
 {
 	struct wm8993_priv *wm8993 = i2c_get_clientdata(i2c);
 
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 2c1e0b5..c349433 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -4264,7 +4264,7 @@ static int wm8994_probe(struct platform_device *pdev)
 			wm8994_dai, ARRAY_SIZE(wm8994_dai));
 }
 
-static int __devexit wm8994_remove(struct platform_device *pdev)
+static int wm8994_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm8995.c b/sound/soc/codecs/wm8995.c
index bbfb5b9..5e3df11 100644
--- a/sound/soc/codecs/wm8995.c
+++ b/sound/soc/codecs/wm8995.c
@@ -2290,7 +2290,7 @@ err_alloc:
 	return ret;
 }
 
-static int __devexit wm8995_spi_remove(struct spi_device *spi)
+static int wm8995_spi_remove(struct spi_device *spi)
 {
 	struct wm8995_priv *wm8995 = spi_get_drvdata(spi);
 	snd_soc_unregister_codec(&spi->dev);
@@ -2347,7 +2347,7 @@ err_alloc:
 	return ret;
 }
 
-static __devexit int wm8995_i2c_remove(struct i2c_client *client)
+static int wm8995_i2c_remove(struct i2c_client *client)
 {
 	struct wm8995_priv *wm8995 = i2c_get_clientdata(client);
 
diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c
index 49a4147..e0544e2 100644
--- a/sound/soc/codecs/wm8996.c
+++ b/sound/soc/codecs/wm8996.c
@@ -3077,7 +3077,7 @@ err:
 	return ret;
 }
 
-static __devexit int wm8996_i2c_remove(struct i2c_client *client)
+static int wm8996_i2c_remove(struct i2c_client *client)
 {
 	struct wm8996_priv *wm8996 = i2c_get_clientdata(client);
 	int i;
diff --git a/sound/soc/codecs/wm9081.c b/sound/soc/codecs/wm9081.c
index f6b522a..e85754b 100644
--- a/sound/soc/codecs/wm9081.c
+++ b/sound/soc/codecs/wm9081.c
@@ -1393,7 +1393,7 @@ err:
 	return ret;
 }
 
-static __devexit int wm9081_i2c_remove(struct i2c_client *client)
+static int wm9081_i2c_remove(struct i2c_client *client)
 {
 	struct wm9081_priv *wm9081 = i2c_get_clientdata(client);
 
diff --git a/sound/soc/codecs/wm9090.c b/sound/soc/codecs/wm9090.c
index bfb22dc..3d70611 100644
--- a/sound/soc/codecs/wm9090.c
+++ b/sound/soc/codecs/wm9090.c
@@ -668,7 +668,7 @@ err:
 	return ret;
 }
 
-static int __devexit wm9090_i2c_remove(struct i2c_client *i2c)
+static int wm9090_i2c_remove(struct i2c_client *i2c)
 {
 	struct wm9090_priv *wm9090 = i2c_get_clientdata(i2c);
 
diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index b330d7a..05b1f34 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -388,7 +388,7 @@ static int wm9705_probe(struct platform_device *pdev)
 			&soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
 }
 
-static int __devexit wm9705_remove(struct platform_device *pdev)
+static int wm9705_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index c44ea10..8e9a6a3 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -691,7 +691,7 @@ static int wm9712_probe(struct platform_device *pdev)
 			&soc_codec_dev_wm9712, wm9712_dai, ARRAY_SIZE(wm9712_dai));
 }
 
-static int __devexit wm9712_remove(struct platform_device *pdev)
+static int wm9712_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index 0285223..f7afa68 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -1260,7 +1260,7 @@ static int wm9713_probe(struct platform_device *pdev)
 			&soc_codec_dev_wm9713, wm9713_dai, ARRAY_SIZE(wm9713_dai));
 }
 
-static int __devexit wm9713_remove(struct platform_device *pdev)
+static int wm9713_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
 	return 0;
diff --git a/sound/soc/fsl/eukrea-tlv320.c b/sound/soc/fsl/eukrea-tlv320.c
index 8a87f0e..75ffdf0 100644
--- a/sound/soc/fsl/eukrea-tlv320.c
+++ b/sound/soc/fsl/eukrea-tlv320.c
@@ -142,7 +142,7 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit eukrea_tlv320_remove(struct platform_device *pdev)
+static int eukrea_tlv320_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_card(&eukrea_tlv320);
 
diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
index 8a07360..9cc5c1f 100644
--- a/sound/soc/fsl/fsl_dma.c
+++ b/sound/soc/fsl/fsl_dma.c
@@ -958,7 +958,7 @@ static int fsl_soc_dma_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit fsl_soc_dma_remove(struct platform_device *pdev)
+static int fsl_soc_dma_remove(struct platform_device *pdev)
 {
 	struct dma_object *dma = dev_get_drvdata(&pdev->dev);
 
diff --git a/sound/soc/fsl/imx-audmux.c b/sound/soc/fsl/imx-audmux.c
index 71454ae..251f4d9 100644
--- a/sound/soc/fsl/imx-audmux.c
+++ b/sound/soc/fsl/imx-audmux.c
@@ -162,7 +162,7 @@ static void __init audmux_debugfs_init(void)
 	}
 }
 
-static void __devexit audmux_debugfs_remove(void)
+static void audmux_debugfs_remove(void)
 {
 	debugfs_remove_recursive(audmux_debugfs_root);
 }
@@ -278,7 +278,7 @@ static int imx_audmux_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit imx_audmux_remove(struct platform_device *pdev)
+static int imx_audmux_remove(struct platform_device *pdev)
 {
 	if (audmux_type == IMX31_AUDMUX)
 		audmux_debugfs_remove();
diff --git a/sound/soc/fsl/imx-mc13783.c b/sound/soc/fsl/imx-mc13783.c
index 6803e0a..4ae30f2 100644
--- a/sound/soc/fsl/imx-mc13783.c
+++ b/sound/soc/fsl/imx-mc13783.c
@@ -148,7 +148,7 @@ static int imx_mc13783_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit imx_mc13783_remove(struct platform_device *pdev)
+static int imx_mc13783_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_card(&imx_mc13783);
 
diff --git a/sound/soc/fsl/imx-pcm-dma.c b/sound/soc/fsl/imx-pcm-dma.c
index d0ebbfa..bf363d8 100644
--- a/sound/soc/fsl/imx-pcm-dma.c
+++ b/sound/soc/fsl/imx-pcm-dma.c
@@ -159,7 +159,7 @@ static int imx_soc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &imx_soc_platform_mx2);
 }
 
-static int __devexit imx_soc_platform_remove(struct platform_device *pdev)
+static int imx_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/fsl/imx-pcm-fiq.c b/sound/soc/fsl/imx-pcm-fiq.c
index 5a452a4..5ec362a 100644
--- a/sound/soc/fsl/imx-pcm-fiq.c
+++ b/sound/soc/fsl/imx-pcm-fiq.c
@@ -315,7 +315,7 @@ failed_register:
 	return ret;
 }
 
-static int __devexit imx_soc_platform_remove(struct platform_device *pdev)
+static int imx_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/fsl/imx-sgtl5000.c b/sound/soc/fsl/imx-sgtl5000.c
index 013322c..9dfec02 100644
--- a/sound/soc/fsl/imx-sgtl5000.c
+++ b/sound/soc/fsl/imx-sgtl5000.c
@@ -184,7 +184,7 @@ fail:
 	return ret;
 }
 
-static int __devexit imx_sgtl5000_remove(struct platform_device *pdev)
+static int imx_sgtl5000_remove(struct platform_device *pdev)
 {
 	struct imx_sgtl5000_data *data = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/fsl/imx-ssi.c b/sound/soc/fsl/imx-ssi.c
index 0392e7b..3b48042 100644
--- a/sound/soc/fsl/imx-ssi.c
+++ b/sound/soc/fsl/imx-ssi.c
@@ -638,7 +638,7 @@ failed_clk:
 	return ret;
 }
 
-static int __devexit imx_ssi_remove(struct platform_device *pdev)
+static int imx_ssi_remove(struct platform_device *pdev)
 {
 	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	struct imx_ssi *ssi = platform_get_drvdata(pdev);
diff --git a/sound/soc/fsl/mpc5200_psc_ac97.c b/sound/soc/fsl/mpc5200_psc_ac97.c
index 7ba4764..a4aec04 100644
--- a/sound/soc/fsl/mpc5200_psc_ac97.c
+++ b/sound/soc/fsl/mpc5200_psc_ac97.c
@@ -310,7 +310,7 @@ static int psc_ac97_of_probe(struct platform_device *op)
 	return 0;
 }
 
-static int __devexit psc_ac97_of_remove(struct platform_device *op)
+static int psc_ac97_of_remove(struct platform_device *op)
 {
 	mpc5200_audio_dma_destroy(op);
 	snd_soc_unregister_dais(&op->dev, ARRAY_SIZE(psc_ac97_dai));
diff --git a/sound/soc/fsl/mpc5200_psc_i2s.c b/sound/soc/fsl/mpc5200_psc_i2s.c
index 39ef9ad..b95b966 100644
--- a/sound/soc/fsl/mpc5200_psc_i2s.c
+++ b/sound/soc/fsl/mpc5200_psc_i2s.c
@@ -205,7 +205,7 @@ static int psc_i2s_of_probe(struct platform_device *op)
 
 }
 
-static int __devexit psc_i2s_of_remove(struct platform_device *op)
+static int psc_i2s_of_remove(struct platform_device *op)
 {
 	mpc5200_audio_dma_destroy(op);
 	snd_soc_unregister_dais(&op->dev, ARRAY_SIZE(psc_i2s_dai));
diff --git a/sound/soc/fsl/mpc8610_hpcd.c b/sound/soc/fsl/mpc8610_hpcd.c
index 2b6dc68..228c52e 100644
--- a/sound/soc/fsl/mpc8610_hpcd.c
+++ b/sound/soc/fsl/mpc8610_hpcd.c
@@ -368,7 +368,7 @@ error_alloc:
  *
  * This function is called when the platform device is removed.
  */
-static int __devexit mpc8610_hpcd_remove(struct platform_device *pdev)
+static int mpc8610_hpcd_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 	struct mpc8610_hpcd_data *machine_data =
diff --git a/sound/soc/fsl/mx27vis-aic32x4.c b/sound/soc/fsl/mx27vis-aic32x4.c
index e88a5ea..3d10741 100644
--- a/sound/soc/fsl/mx27vis-aic32x4.c
+++ b/sound/soc/fsl/mx27vis-aic32x4.c
@@ -219,7 +219,7 @@ static int mx27vis_aic32x4_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit mx27vis_aic32x4_remove(struct platform_device *pdev)
+static int mx27vis_aic32x4_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_card(&mx27vis_aic32x4);
 
diff --git a/sound/soc/fsl/p1022_ds.c b/sound/soc/fsl/p1022_ds.c
index a54ad5b..ba59c23 100644
--- a/sound/soc/fsl/p1022_ds.c
+++ b/sound/soc/fsl/p1022_ds.c
@@ -376,7 +376,7 @@ error_put:
  *
  * This function is called when the platform device is removed.
  */
-static int __devexit p1022_ds_remove(struct platform_device *pdev)
+static int p1022_ds_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 	struct machine_data *mdata =
diff --git a/sound/soc/fsl/p1022_rdk.c b/sound/soc/fsl/p1022_rdk.c
index fa5fd14..f215519 100644
--- a/sound/soc/fsl/p1022_rdk.c
+++ b/sound/soc/fsl/p1022_rdk.c
@@ -326,7 +326,7 @@ error_put:
  *
  * This function is called when the platform device is removed.
  */
-static int __devexit p1022_rdk_remove(struct platform_device *pdev)
+static int p1022_rdk_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 	struct machine_data *mdata =
diff --git a/sound/soc/fsl/pcm030-audio-fabric.c b/sound/soc/fsl/pcm030-audio-fabric.c
index b4b449c..8e52c148 100644
--- a/sound/soc/fsl/pcm030-audio-fabric.c
+++ b/sound/soc/fsl/pcm030-audio-fabric.c
@@ -101,7 +101,7 @@ static int __init pcm030_fabric_probe(struct platform_device *op)
 	return ret;
 }
 
-static int __devexit pcm030_fabric_remove(struct platform_device *op)
+static int pcm030_fabric_remove(struct platform_device *op)
 {
 	struct pcm030_audio_data *pdata = platform_get_drvdata(op);
 	int ret;
diff --git a/sound/soc/jz4740/jz4740-i2s.c b/sound/soc/jz4740/jz4740-i2s.c
index 21051b3..6cef491 100644
--- a/sound/soc/jz4740/jz4740-i2s.c
+++ b/sound/soc/jz4740/jz4740-i2s.c
@@ -492,7 +492,7 @@ err_free:
 	return ret;
 }
 
-static int __devexit jz4740_i2s_dev_remove(struct platform_device *pdev)
+static int jz4740_i2s_dev_remove(struct platform_device *pdev)
 {
 	struct jz4740_i2s *i2s = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/jz4740/jz4740-pcm.c b/sound/soc/jz4740/jz4740-pcm.c
index 770e4e2..7100592 100644
--- a/sound/soc/jz4740/jz4740-pcm.c
+++ b/sound/soc/jz4740/jz4740-pcm.c
@@ -340,7 +340,7 @@ static int jz4740_pcm_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &jz4740_soc_platform);
 }
 
-static int __devexit jz4740_pcm_remove(struct platform_device *pdev)
+static int jz4740_pcm_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/jz4740/qi_lb60.c b/sound/soc/jz4740/qi_lb60.c
index 5937ddf..55fd6b5 100644
--- a/sound/soc/jz4740/qi_lb60.c
+++ b/sound/soc/jz4740/qi_lb60.c
@@ -116,7 +116,7 @@ static int qi_lb60_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit qi_lb60_remove(struct platform_device *pdev)
+static int qi_lb60_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/kirkwood/kirkwood-dma.c b/sound/soc/kirkwood/kirkwood-dma.c
index 23ead2b..4407844 100644
--- a/sound/soc/kirkwood/kirkwood-dma.c
+++ b/sound/soc/kirkwood/kirkwood-dma.c
@@ -374,7 +374,7 @@ static int kirkwood_soc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &kirkwood_soc_platform);
 }
 
-static int __devexit kirkwood_soc_platform_remove(struct platform_device *pdev)
+static int kirkwood_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index 2c6e99f..4fa01cb 100644
--- a/sound/soc/kirkwood/kirkwood-i2s.c
+++ b/sound/soc/kirkwood/kirkwood-i2s.c
@@ -476,7 +476,7 @@ error:
 	return err;
 }
 
-static __devexit int kirkwood_i2s_dev_remove(struct platform_device *pdev)
+static int kirkwood_i2s_dev_remove(struct platform_device *pdev)
 {
 	struct kirkwood_dma_data *priv = dev_get_drvdata(&pdev->dev);
 
diff --git a/sound/soc/kirkwood/kirkwood-openrd.c b/sound/soc/kirkwood/kirkwood-openrd.c
index 1c682ef..b979c71 100644
--- a/sound/soc/kirkwood/kirkwood-openrd.c
+++ b/sound/soc/kirkwood/kirkwood-openrd.c
@@ -85,7 +85,7 @@ static int openrd_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit openrd_remove(struct platform_device *pdev)
+static int openrd_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/kirkwood/kirkwood-t5325.c b/sound/soc/kirkwood/kirkwood-t5325.c
index bc142a7..1d0ed6f 100644
--- a/sound/soc/kirkwood/kirkwood-t5325.c
+++ b/sound/soc/kirkwood/kirkwood-t5325.c
@@ -106,7 +106,7 @@ static int t5325_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit t5325_remove(struct platform_device *pdev)
+static int t5325_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/mid-x86/mfld_machine.c b/sound/soc/mid-x86/mfld_machine.c
index 671eb18..4139116 100644
--- a/sound/soc/mid-x86/mfld_machine.c
+++ b/sound/soc/mid-x86/mfld_machine.c
@@ -417,7 +417,7 @@ unalloc:
 	return ret_val;
 }
 
-static int __devexit snd_mfld_mc_remove(struct platform_device *pdev)
+static int snd_mfld_mc_remove(struct platform_device *pdev)
 {
 	struct mfld_mc_private *mc_drv_ctx = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/mxs/mxs-pcm.c b/sound/soc/mxs/mxs-pcm.c
index d41c770..564b5b6 100644
--- a/sound/soc/mxs/mxs-pcm.c
+++ b/sound/soc/mxs/mxs-pcm.c
@@ -226,7 +226,7 @@ int mxs_pcm_platform_register(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(mxs_pcm_platform_register);
 
-void __devexit mxs_pcm_platform_unregister(struct device *dev)
+void mxs_pcm_platform_unregister(struct device *dev)
 {
 	snd_soc_unregister_platform(dev);
 }
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index c8c882a..0a78e60 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -790,7 +790,7 @@ failed_pdev_alloc:
 	return ret;
 }
 
-static int __devexit mxs_saif_remove(struct platform_device *pdev)
+static int mxs_saif_remove(struct platform_device *pdev)
 {
 	mxs_pcm_platform_unregister(&pdev->dev);
 	snd_soc_unregister_dai(&pdev->dev);
diff --git a/sound/soc/mxs/mxs-sgtl5000.c b/sound/soc/mxs/mxs-sgtl5000.c
index 638c42d..b1d9b5e 100644
--- a/sound/soc/mxs/mxs-sgtl5000.c
+++ b/sound/soc/mxs/mxs-sgtl5000.c
@@ -176,7 +176,7 @@ static int mxs_sgtl5000_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit mxs_sgtl5000_remove(struct platform_device *pdev)
+static int mxs_sgtl5000_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/nuc900/nuc900-ac97.c b/sound/soc/nuc900/nuc900-ac97.c
index 0121557..0418467 100644
--- a/sound/soc/nuc900/nuc900-ac97.c
+++ b/sound/soc/nuc900/nuc900-ac97.c
@@ -382,7 +382,7 @@ out0:
 	return ret;
 }
 
-static int __devexit nuc900_ac97_drvremove(struct platform_device *pdev)
+static int nuc900_ac97_drvremove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dai(&pdev->dev);
 
diff --git a/sound/soc/nuc900/nuc900-pcm.c b/sound/soc/nuc900/nuc900-pcm.c
index 37d8cc3..c894ff0 100644
--- a/sound/soc/nuc900/nuc900-pcm.c
+++ b/sound/soc/nuc900/nuc900-pcm.c
@@ -342,7 +342,7 @@ static int nuc900_soc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &nuc900_soc_platform);
 }
 
-static int __devexit nuc900_soc_platform_remove(struct platform_device *pdev)
+static int nuc900_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/omap/ams-delta.c b/sound/soc/omap/ams-delta.c
index 1acab65..2600447 100644
--- a/sound/soc/omap/ams-delta.c
+++ b/sound/soc/omap/ams-delta.c
@@ -591,7 +591,7 @@ static int ams_delta_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit ams_delta_remove(struct platform_device *pdev)
+static int ams_delta_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/omap/mcbsp.c b/sound/soc/omap/mcbsp.c
index e166312..b741958 100644
--- a/sound/soc/omap/mcbsp.c
+++ b/sound/soc/omap/mcbsp.c
@@ -1087,7 +1087,7 @@ err_thres:
 	return ret;
 }
 
-void __devexit omap_mcbsp_sysfs_remove(struct omap_mcbsp *mcbsp)
+void omap_mcbsp_sysfs_remove(struct omap_mcbsp *mcbsp)
 {
 	if (mcbsp->pdata->buffer_size)
 		sysfs_remove_group(&mcbsp->dev->kobj, &additional_attr_group);
diff --git a/sound/soc/omap/mcbsp.h b/sound/soc/omap/mcbsp.h
index 27bf6c3..3adacfb 100644
--- a/sound/soc/omap/mcbsp.h
+++ b/sound/soc/omap/mcbsp.h
@@ -342,6 +342,6 @@ int omap_st_disable(struct omap_mcbsp *mcbsp);
 int omap_st_is_enabled(struct omap_mcbsp *mcbsp);
 
 int omap_mcbsp_init(struct platform_device *pdev);
-void __devexit omap_mcbsp_sysfs_remove(struct omap_mcbsp *mcbsp);
+void omap_mcbsp_sysfs_remove(struct omap_mcbsp *mcbsp);
 
 #endif /* __ASOC_MCBSP_H */
diff --git a/sound/soc/omap/omap-abe-twl6040.c b/sound/soc/omap/omap-abe-twl6040.c
index a594ebf..5ea8b60 100644
--- a/sound/soc/omap/omap-abe-twl6040.c
+++ b/sound/soc/omap/omap-abe-twl6040.c
@@ -390,7 +390,7 @@ err_unregister:
 	return ret;
 }
 
-static int __devexit omap_abe_remove(struct platform_device *pdev)
+static int omap_abe_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 	struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card);
diff --git a/sound/soc/omap/omap-dmic.c b/sound/soc/omap/omap-dmic.c
index bd46176..ba49ccd 100644
--- a/sound/soc/omap/omap-dmic.c
+++ b/sound/soc/omap/omap-dmic.c
@@ -518,7 +518,7 @@ err_put_clk:
 	return ret;
 }
 
-static int __devexit asoc_dmic_remove(struct platform_device *pdev)
+static int asoc_dmic_remove(struct platform_device *pdev)
 {
 	struct omap_dmic *dmic = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/omap/omap-hdmi-card.c b/sound/soc/omap/omap-hdmi-card.c
index 092d45c..d4eaa92 100644
--- a/sound/soc/omap/omap-hdmi-card.c
+++ b/sound/soc/omap/omap-hdmi-card.c
@@ -61,7 +61,7 @@ static int omap_hdmi_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit omap_hdmi_remove(struct platform_device *pdev)
+static int omap_hdmi_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/omap/omap-hdmi.c b/sound/soc/omap/omap-hdmi.c
index 3845781..7ea2481 100644
--- a/sound/soc/omap/omap-hdmi.c
+++ b/sound/soc/omap/omap-hdmi.c
@@ -324,7 +324,7 @@ static int omap_hdmi_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit omap_hdmi_remove(struct platform_device *pdev)
+static int omap_hdmi_remove(struct platform_device *pdev)
 {
 	struct hdmi_priv *hdmi_data = dev_get_drvdata(&pdev->dev);
 
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 316ea7d..0ad16ab 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -799,7 +799,7 @@ static int asoc_mcbsp_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit asoc_mcbsp_remove(struct platform_device *pdev)
+static int asoc_mcbsp_remove(struct platform_device *pdev)
 {
 	struct omap_mcbsp *mcbsp = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/omap/omap-mcpdm.c b/sound/soc/omap/omap-mcpdm.c
index 803ff6a..2fe8be2 100644
--- a/sound/soc/omap/omap-mcpdm.c
+++ b/sound/soc/omap/omap-mcpdm.c
@@ -487,7 +487,7 @@ static int asoc_mcpdm_probe(struct platform_device *pdev)
 	return snd_soc_register_dai(&pdev->dev, &omap_mcpdm_dai);
 }
 
-static int __devexit asoc_mcpdm_remove(struct platform_device *pdev)
+static int asoc_mcpdm_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dai(&pdev->dev);
 	return 0;
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index 21f927b..47bdbd4 100644
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -308,7 +308,7 @@ static int omap_pcm_probe(struct platform_device *pdev)
 			&omap_soc_platform);
 }
 
-static int __devexit omap_pcm_remove(struct platform_device *pdev)
+static int omap_pcm_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/omap/omap-twl4030.c b/sound/soc/omap/omap-twl4030.c
index c505ec2..4541d28 100644
--- a/sound/soc/omap/omap-twl4030.c
+++ b/sound/soc/omap/omap-twl4030.c
@@ -154,7 +154,7 @@ static int omap_twl4030_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit omap_twl4030_remove(struct platform_device *pdev)
+static int omap_twl4030_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/pxa/brownstone.c b/sound/soc/pxa/brownstone.c
index 8c5b325..4ad7609 100644
--- a/sound/soc/pxa/brownstone.c
+++ b/sound/soc/pxa/brownstone.c
@@ -152,7 +152,7 @@ static int brownstone_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit brownstone_remove(struct platform_device *pdev)
+static int brownstone_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_card(&brownstone);
 	return 0;
diff --git a/sound/soc/pxa/corgi.c b/sound/soc/pxa/corgi.c
index 3e08dcf..f4cce1e 100644
--- a/sound/soc/pxa/corgi.c
+++ b/sound/soc/pxa/corgi.c
@@ -317,7 +317,7 @@ static int corgi_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit corgi_remove(struct platform_device *pdev)
+static int corgi_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/pxa/e740_wm9705.c b/sound/soc/pxa/e740_wm9705.c
index 189d77c..70d799b 100644
--- a/sound/soc/pxa/e740_wm9705.c
+++ b/sound/soc/pxa/e740_wm9705.c
@@ -165,7 +165,7 @@ static int e740_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit e740_remove(struct platform_device *pdev)
+static int e740_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/pxa/e750_wm9705.c b/sound/soc/pxa/e750_wm9705.c
index 319d55b..f94d2ab 100644
--- a/sound/soc/pxa/e750_wm9705.c
+++ b/sound/soc/pxa/e750_wm9705.c
@@ -147,7 +147,7 @@ static int e750_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit e750_remove(struct platform_device *pdev)
+static int e750_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/pxa/e800_wm9712.c b/sound/soc/pxa/e800_wm9712.c
index 9fa2cd1..8768a64 100644
--- a/sound/soc/pxa/e800_wm9712.c
+++ b/sound/soc/pxa/e800_wm9712.c
@@ -137,7 +137,7 @@ static int e800_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit e800_remove(struct platform_device *pdev)
+static int e800_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/pxa/hx4700.c b/sound/soc/pxa/hx4700.c
index 40c07b3..dcc9b04 100644
--- a/sound/soc/pxa/hx4700.c
+++ b/sound/soc/pxa/hx4700.c
@@ -204,7 +204,7 @@ static int hx4700_audio_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit hx4700_audio_remove(struct platform_device *pdev)
+static int hx4700_audio_remove(struct platform_device *pdev)
 {
 	snd_soc_jack_free_gpios(&hs_jack, 1, &hs_jack_gpio);
 	snd_soc_unregister_card(&snd_soc_card_hx4700);
diff --git a/sound/soc/pxa/imote2.c b/sound/soc/pxa/imote2.c
index e89441d..eef1f7b 100644
--- a/sound/soc/pxa/imote2.c
+++ b/sound/soc/pxa/imote2.c
@@ -79,7 +79,7 @@ static int imote2_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit imote2_remove(struct platform_device *pdev)
+static int imote2_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/pxa/mioa701_wm9713.c b/sound/soc/pxa/mioa701_wm9713.c
index 135a839..97b711e 100644
--- a/sound/soc/pxa/mioa701_wm9713.c
+++ b/sound/soc/pxa/mioa701_wm9713.c
@@ -202,7 +202,7 @@ static int mioa701_wm9713_probe(struct platform_device *pdev)
 	return rc;
 }
 
-static int __devexit mioa701_wm9713_remove(struct platform_device *pdev)
+static int mioa701_wm9713_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/pxa/mmp-pcm.c b/sound/soc/pxa/mmp-pcm.c
index 1324673..190eb0b 100644
--- a/sound/soc/pxa/mmp-pcm.c
+++ b/sound/soc/pxa/mmp-pcm.c
@@ -274,7 +274,7 @@ static int mmp_pcm_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &mmp_soc_platform);
 }
 
-static int __devexit mmp_pcm_remove(struct platform_device *pdev)
+static int mmp_pcm_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/pxa/mmp-sspa.c b/sound/soc/pxa/mmp-sspa.c
index c97ce5b0..41c3a09 100644
--- a/sound/soc/pxa/mmp-sspa.c
+++ b/sound/soc/pxa/mmp-sspa.c
@@ -453,7 +453,7 @@ static int asoc_mmp_sspa_probe(struct platform_device *pdev)
 	return snd_soc_register_dai(&pdev->dev, &mmp_sspa_dai);
 }
 
-static int __devexit asoc_mmp_sspa_remove(struct platform_device *pdev)
+static int asoc_mmp_sspa_remove(struct platform_device *pdev)
 {
 	struct sspa_priv *priv = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/pxa/palm27x.c b/sound/soc/pxa/palm27x.c
index b374f09..2074e2d 100644
--- a/sound/soc/pxa/palm27x.c
+++ b/sound/soc/pxa/palm27x.c
@@ -187,7 +187,7 @@ put_device:
 	return ret;
 }
 
-static int __devexit palm27x_asoc_remove(struct platform_device *pdev)
+static int palm27x_asoc_remove(struct platform_device *pdev)
 {
 	platform_device_unregister(palm27x_snd_device);
 	return 0;
diff --git a/sound/soc/pxa/poodle.c b/sound/soc/pxa/poodle.c
index bc00684..fafe463 100644
--- a/sound/soc/pxa/poodle.c
+++ b/sound/soc/pxa/poodle.c
@@ -291,7 +291,7 @@ static int poodle_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit poodle_remove(struct platform_device *pdev)
+static int poodle_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c
index 6a61748..d3eb0c2 100644
--- a/sound/soc/pxa/pxa-ssp.c
+++ b/sound/soc/pxa/pxa-ssp.c
@@ -799,7 +799,7 @@ static int asoc_ssp_probe(struct platform_device *pdev)
 	return snd_soc_register_dai(&pdev->dev, &pxa_ssp_dai);
 }
 
-static int __devexit asoc_ssp_remove(struct platform_device *pdev)
+static int asoc_ssp_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dai(&pdev->dev);
 	return 0;
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index 0a6194d..4b0a009 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -249,7 +249,7 @@ static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
 			ARRAY_SIZE(pxa_ac97_dai_driver));
 }
 
-static int __devexit pxa2xx_ac97_dev_remove(struct platform_device *pdev)
+static int pxa2xx_ac97_dev_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(pxa_ac97_dai_driver));
 	return 0;
diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c
index 591ba1d..6b1a06f 100644
--- a/sound/soc/pxa/pxa2xx-i2s.c
+++ b/sound/soc/pxa/pxa2xx-i2s.c
@@ -365,7 +365,7 @@ static int pxa2xx_i2s_drv_probe(struct platform_device *pdev)
 	return snd_soc_register_dai(&pdev->dev, &pxa_i2s_dai);
 }
 
-static int __devexit pxa2xx_i2s_drv_remove(struct platform_device *pdev)
+static int pxa2xx_i2s_drv_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dai(&pdev->dev);
 	return 0;
diff --git a/sound/soc/pxa/pxa2xx-pcm.c b/sound/soc/pxa/pxa2xx-pcm.c
index 9d6f78a..ecff116 100644
--- a/sound/soc/pxa/pxa2xx-pcm.c
+++ b/sound/soc/pxa/pxa2xx-pcm.c
@@ -125,7 +125,7 @@ static int pxa2xx_soc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &pxa2xx_soc_platform);
 }
 
-static int __devexit pxa2xx_soc_platform_remove(struct platform_device *pdev)
+static int pxa2xx_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c
index 4f6d8b1..a3fe191 100644
--- a/sound/soc/pxa/tosa.c
+++ b/sound/soc/pxa/tosa.c
@@ -262,7 +262,7 @@ static int tosa_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit tosa_remove(struct platform_device *pdev)
+static int tosa_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/pxa/ttc-dkb.c b/sound/soc/pxa/ttc-dkb.c
index 490c76c..f4ea4f6 100644
--- a/sound/soc/pxa/ttc-dkb.c
+++ b/sound/soc/pxa/ttc-dkb.c
@@ -146,7 +146,7 @@ static int ttc_dkb_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit ttc_dkb_remove(struct platform_device *pdev)
+static int ttc_dkb_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/s6000/s6000-i2s.c b/sound/soc/s6000/s6000-i2s.c
index 79abcd0..fee4d47 100644
--- a/sound/soc/s6000/s6000-i2s.c
+++ b/sound/soc/s6000/s6000-i2s.c
@@ -566,7 +566,7 @@ err_release_none:
 	return ret;
 }
 
-static void __devexit s6000_i2s_remove(struct platform_device *pdev)
+static void s6000_i2s_remove(struct platform_device *pdev)
 {
 	struct s6000_i2s_dev *dev = dev_get_drvdata(&pdev->dev);
 	struct resource *region;
diff --git a/sound/soc/s6000/s6000-pcm.c b/sound/soc/s6000/s6000-pcm.c
index d4672ba..1358c7d 100644
--- a/sound/soc/s6000/s6000-pcm.c
+++ b/sound/soc/s6000/s6000-pcm.c
@@ -505,7 +505,7 @@ static int s6000_soc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &s6000_soc_platform);
 }
 
-static int __devexit s6000_soc_platform_remove(struct platform_device *pdev)
+static int s6000_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/samsung/ac97.c b/sound/soc/samsung/ac97.c
index 1d097f7..c9a3fff 100644
--- a/sound/soc/samsung/ac97.c
+++ b/sound/soc/samsung/ac97.c
@@ -478,7 +478,7 @@ err1:
 	return ret;
 }
 
-static __devexit int s3c_ac97_remove(struct platform_device *pdev)
+static int s3c_ac97_remove(struct platform_device *pdev)
 {
 	struct resource *mem_res, *irq_res;
 
diff --git a/sound/soc/samsung/bells.c b/sound/soc/samsung/bells.c
index f7545ac..3733b01 100644
--- a/sound/soc/samsung/bells.c
+++ b/sound/soc/samsung/bells.c
@@ -429,7 +429,7 @@ static int bells_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit bells_remove(struct platform_device *pdev)
+static int bells_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_card(&bells_cards[pdev->id]);
 
diff --git a/sound/soc/samsung/dma.c b/sound/soc/samsung/dma.c
index 3705a8a..897dedc 100644
--- a/sound/soc/samsung/dma.c
+++ b/sound/soc/samsung/dma.c
@@ -437,7 +437,7 @@ static int samsung_asoc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &samsung_asoc_platform);
 }
 
-static int __devexit samsung_asoc_platform_remove(struct platform_device *pdev)
+static int samsung_asoc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index 6a60e71..533f454 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -1113,7 +1113,7 @@ err:
 	return ret;
 }
 
-static __devexit int samsung_i2s_remove(struct platform_device *pdev)
+static int samsung_i2s_remove(struct platform_device *pdev)
 {
 	struct i2s_dai *i2s, *other;
 	struct resource *res;
diff --git a/sound/soc/samsung/idma.c b/sound/soc/samsung/idma.c
index 136285b..a07950b 100644
--- a/sound/soc/samsung/idma.c
+++ b/sound/soc/samsung/idma.c
@@ -421,7 +421,7 @@ static int asoc_idma_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &asoc_idma_platform);
 }
 
-static int __devexit asoc_idma_platform_remove(struct platform_device *pdev)
+static int asoc_idma_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/samsung/littlemill.c b/sound/soc/samsung/littlemill.c
index 0d06249..86f49b2 100644
--- a/sound/soc/samsung/littlemill.c
+++ b/sound/soc/samsung/littlemill.c
@@ -314,7 +314,7 @@ static int littlemill_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit littlemill_remove(struct platform_device *pdev)
+static int littlemill_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/samsung/lowland.c b/sound/soc/samsung/lowland.c
index e4f08fc..4ab621d 100644
--- a/sound/soc/samsung/lowland.c
+++ b/sound/soc/samsung/lowland.c
@@ -197,7 +197,7 @@ static int lowland_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit lowland_remove(struct platform_device *pdev)
+static int lowland_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/samsung/pcm.c b/sound/soc/samsung/pcm.c
index 3708658..2731457a 100644
--- a/sound/soc/samsung/pcm.c
+++ b/sound/soc/samsung/pcm.c
@@ -605,7 +605,7 @@ err1:
 	return ret;
 }
 
-static __devexit int s3c_pcm_dev_remove(struct platform_device *pdev)
+static int s3c_pcm_dev_remove(struct platform_device *pdev)
 {
 	struct s3c_pcm_info *pcm = &s3c_pcm[pdev->id];
 	struct resource *mem_res;
diff --git a/sound/soc/samsung/s3c2412-i2s.c b/sound/soc/samsung/s3c2412-i2s.c
index e2db71e..7243cc3 100644
--- a/sound/soc/samsung/s3c2412-i2s.c
+++ b/sound/soc/samsung/s3c2412-i2s.c
@@ -165,7 +165,7 @@ static int s3c2412_iis_dev_probe(struct platform_device *pdev)
 	return s3c_i2sv2_register_dai(&pdev->dev, -1, &s3c2412_i2s_dai);
 }
 
-static __devexit int s3c2412_iis_dev_remove(struct platform_device *pdev)
+static int s3c2412_iis_dev_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dai(&pdev->dev);
 	return 0;
diff --git a/sound/soc/samsung/s3c24xx-i2s.c b/sound/soc/samsung/s3c24xx-i2s.c
index 05491d9..142e130 100644
--- a/sound/soc/samsung/s3c24xx-i2s.c
+++ b/sound/soc/samsung/s3c24xx-i2s.c
@@ -470,7 +470,7 @@ static int s3c24xx_iis_dev_probe(struct platform_device *pdev)
 	return snd_soc_register_dai(&pdev->dev, &s3c24xx_i2s_dai);
 }
 
-static __devexit int s3c24xx_iis_dev_remove(struct platform_device *pdev)
+static int s3c24xx_iis_dev_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dai(&pdev->dev);
 	return 0;
diff --git a/sound/soc/samsung/s3c24xx_simtec.c b/sound/soc/samsung/s3c24xx_simtec.c
index 98b7c98..3564444 100644
--- a/sound/soc/samsung/s3c24xx_simtec.c
+++ b/sound/soc/samsung/s3c24xx_simtec.c
@@ -371,7 +371,7 @@ err_clk:
 }
 EXPORT_SYMBOL_GPL(simtec_audio_core_probe);
 
-int __devexit simtec_audio_remove(struct platform_device *pdev)
+int simtec_audio_remove(struct platform_device *pdev)
 {
 	struct platform_device *snd_dev = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/samsung/smdk_wm8580pcm.c b/sound/soc/samsung/smdk_wm8580pcm.c
index 649997e..b0bf4c8 100644
--- a/sound/soc/samsung/smdk_wm8580pcm.c
+++ b/sound/soc/samsung/smdk_wm8580pcm.c
@@ -173,7 +173,7 @@ static int snd_smdk_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit snd_smdk_remove(struct platform_device *pdev)
+static int snd_smdk_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_card(&smdk_pcm);
 	platform_set_drvdata(pdev, NULL);
diff --git a/sound/soc/samsung/smdk_wm8994.c b/sound/soc/samsung/smdk_wm8994.c
index 1a01571..ede44d3 100644
--- a/sound/soc/samsung/smdk_wm8994.c
+++ b/sound/soc/samsung/smdk_wm8994.c
@@ -164,7 +164,7 @@ static int smdk_audio_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit smdk_audio_remove(struct platform_device *pdev)
+static int smdk_audio_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/samsung/smdk_wm8994pcm.c b/sound/soc/samsung/smdk_wm8994pcm.c
index 84d8f94..0154fb3 100644
--- a/sound/soc/samsung/smdk_wm8994pcm.c
+++ b/sound/soc/samsung/smdk_wm8994pcm.c
@@ -143,7 +143,7 @@ static int snd_smdk_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit snd_smdk_remove(struct platform_device *pdev)
+static int snd_smdk_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_card(&smdk_pcm);
 	platform_set_drvdata(pdev, NULL);
diff --git a/sound/soc/samsung/spdif.c b/sound/soc/samsung/spdif.c
index 5612ea8..73f6646 100644
--- a/sound/soc/samsung/spdif.c
+++ b/sound/soc/samsung/spdif.c
@@ -453,7 +453,7 @@ err0:
 	return ret;
 }
 
-static __devexit int spdif_remove(struct platform_device *pdev)
+static int spdif_remove(struct platform_device *pdev)
 {
 	struct samsung_spdif_info *spdif = &spdif_info;
 	struct resource *mem_res;
diff --git a/sound/soc/samsung/speyside.c b/sound/soc/samsung/speyside.c
index 01bad86..f9ed2d6 100644
--- a/sound/soc/samsung/speyside.c
+++ b/sound/soc/samsung/speyside.c
@@ -337,7 +337,7 @@ static int speyside_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit speyside_remove(struct platform_device *pdev)
+static int speyside_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/samsung/tobermory.c b/sound/soc/samsung/tobermory.c
index 01d474c..6565184 100644
--- a/sound/soc/samsung/tobermory.c
+++ b/sound/soc/samsung/tobermory.c
@@ -231,7 +231,7 @@ static int tobermory_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __devexit tobermory_remove(struct platform_device *pdev)
+static int tobermory_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/sh/dma-sh7760.c b/sound/soc/sh/dma-sh7760.c
index 9b06724..19eff8f 100644
--- a/sound/soc/sh/dma-sh7760.c
+++ b/sound/soc/sh/dma-sh7760.c
@@ -353,7 +353,7 @@ static int sh7760_soc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &sh7760_soc_platform);
 }
 
-static int __devexit sh7760_soc_platform_remove(struct platform_device *pdev)
+static int sh7760_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/sh/hac.c b/sound/soc/sh/hac.c
index 2efdd48..4cc2d64 100644
--- a/sound/soc/sh/hac.c
+++ b/sound/soc/sh/hac.c
@@ -316,7 +316,7 @@ static int hac_soc_platform_probe(struct platform_device *pdev)
 			ARRAY_SIZE(sh4_hac_dai));
 }
 
-static int __devexit hac_soc_platform_remove(struct platform_device *pdev)
+static int hac_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(sh4_hac_dai));
 	return 0;
diff --git a/sound/soc/sh/siu_dai.c b/sound/soc/sh/siu_dai.c
index 694cb96..34facdc 100644
--- a/sound/soc/sh/siu_dai.c
+++ b/sound/soc/sh/siu_dai.c
@@ -815,7 +815,7 @@ ereqfw:
 	return ret;
 }
 
-static int __devexit siu_remove(struct platform_device *pdev)
+static int siu_remove(struct platform_device *pdev)
 {
 	struct siu_info *info = dev_get_drvdata(&pdev->dev);
 	struct resource *res;
diff --git a/sound/soc/sh/ssi.c b/sound/soc/sh/ssi.c
index 1b26656..c8e73a7 100644
--- a/sound/soc/sh/ssi.c
+++ b/sound/soc/sh/ssi.c
@@ -385,7 +385,7 @@ static int sh4_soc_dai_probe(struct platform_device *pdev)
 			ARRAY_SIZE(sh4_ssi_dai));
 }
 
-static int __devexit sh4_soc_dai_remove(struct platform_device *pdev)
+static int sh4_soc_dai_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(sh4_ssi_dai));
 	return 0;
diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c
index 813689d..fe4541d 100644
--- a/sound/soc/soc-utils.c
+++ b/sound/soc/soc-utils.c
@@ -111,7 +111,7 @@ static int snd_soc_dummy_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static __devexit int snd_soc_dummy_remove(struct platform_device *pdev)
+static int snd_soc_dummy_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	snd_soc_unregister_codec(&pdev->dev);
diff --git a/sound/soc/spear/spear_pcm.c b/sound/soc/spear/spear_pcm.c
index 29c23d3..9b76cc5 100644
--- a/sound/soc/spear/spear_pcm.c
+++ b/sound/soc/spear/spear_pcm.c
@@ -189,7 +189,7 @@ static int spear_soc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &spear_soc_platform);
 }
 
-static int __devexit spear_soc_platform_remove(struct platform_device *pdev)
+static int spear_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 
diff --git a/sound/soc/tegra/tegra20_das.c b/sound/soc/tegra/tegra20_das.c
index 7b0a1f5..6543184 100644
--- a/sound/soc/tegra/tegra20_das.c
+++ b/sound/soc/tegra/tegra20_das.c
@@ -200,7 +200,7 @@ err:
 	return ret;
 }
 
-static int __devexit tegra20_das_remove(struct platform_device *pdev)
+static int tegra20_das_remove(struct platform_device *pdev)
 {
 	if (!das)
 		return -ENODEV;
diff --git a/sound/soc/tegra/tegra20_i2s.c b/sound/soc/tegra/tegra20_i2s.c
index 34557d3..caa772d 100644
--- a/sound/soc/tegra/tegra20_i2s.c
+++ b/sound/soc/tegra/tegra20_i2s.c
@@ -447,7 +447,7 @@ err:
 	return ret;
 }
 
-static int __devexit tegra20_i2s_platform_remove(struct platform_device *pdev)
+static int tegra20_i2s_platform_remove(struct platform_device *pdev)
 {
 	struct tegra20_i2s *i2s = dev_get_drvdata(&pdev->dev);
 
diff --git a/sound/soc/tegra/tegra20_spdif.c b/sound/soc/tegra/tegra20_spdif.c
index a2f9fe8..04771d1 100644
--- a/sound/soc/tegra/tegra20_spdif.c
+++ b/sound/soc/tegra/tegra20_spdif.c
@@ -357,7 +357,7 @@ err:
 	return ret;
 }
 
-static int __devexit tegra20_spdif_platform_remove(struct platform_device *pdev)
+static int tegra20_spdif_platform_remove(struct platform_device *pdev)
 {
 	struct tegra20_spdif *spdif = dev_get_drvdata(&pdev->dev);
 
diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c
index e1cc576..f354dc3 100644
--- a/sound/soc/tegra/tegra30_ahub.c
+++ b/sound/soc/tegra/tegra30_ahub.c
@@ -585,7 +585,7 @@ err:
 	return ret;
 }
 
-static int __devexit tegra30_ahub_remove(struct platform_device *pdev)
+static int tegra30_ahub_remove(struct platform_device *pdev)
 {
 	if (!ahub)
 		return -ENODEV;
diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c
index 18d6847..27e91dd 100644
--- a/sound/soc/tegra/tegra30_i2s.c
+++ b/sound/soc/tegra/tegra30_i2s.c
@@ -492,7 +492,7 @@ err:
 	return ret;
 }
 
-static int __devexit tegra30_i2s_platform_remove(struct platform_device *pdev)
+static int tegra30_i2s_platform_remove(struct platform_device *pdev)
 {
 	struct tegra30_i2s *i2s = dev_get_drvdata(&pdev->dev);
 
diff --git a/sound/soc/tegra/tegra_alc5632.c b/sound/soc/tegra/tegra_alc5632.c
index b2e3c00..c80adb9 100644
--- a/sound/soc/tegra/tegra_alc5632.c
+++ b/sound/soc/tegra/tegra_alc5632.c
@@ -227,7 +227,7 @@ err:
 	return ret;
 }
 
-static int __devexit tegra_alc5632_remove(struct platform_device *pdev)
+static int tegra_alc5632_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 	struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
diff --git a/sound/soc/tegra/tegra_pcm.c b/sound/soc/tegra/tegra_pcm.c
index 4061984..c925ab0 100644
--- a/sound/soc/tegra/tegra_pcm.c
+++ b/sound/soc/tegra/tegra_pcm.c
@@ -259,7 +259,7 @@ int tegra_pcm_platform_register(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(tegra_pcm_platform_register);
 
-void __devexit tegra_pcm_platform_unregister(struct device *dev)
+void tegra_pcm_platform_unregister(struct device *dev)
 {
 	snd_soc_unregister_platform(dev);
 }
diff --git a/sound/soc/tegra/tegra_wm8753.c b/sound/soc/tegra/tegra_wm8753.c
index 53008b0..c8ef88a6 100644
--- a/sound/soc/tegra/tegra_wm8753.c
+++ b/sound/soc/tegra/tegra_wm8753.c
@@ -188,7 +188,7 @@ err:
 	return ret;
 }
 
-static int __devexit tegra_wm8753_driver_remove(struct platform_device *pdev)
+static int tegra_wm8753_driver_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 	struct tegra_wm8753 *machine = snd_soc_card_get_drvdata(card);
diff --git a/sound/soc/tegra/tegra_wm8903.c b/sound/soc/tegra/tegra_wm8903.c
index 2599252..bbd79bf 100644
--- a/sound/soc/tegra/tegra_wm8903.c
+++ b/sound/soc/tegra/tegra_wm8903.c
@@ -402,7 +402,7 @@ err:
 	return ret;
 }
 
-static int __devexit tegra_wm8903_driver_remove(struct platform_device *pdev)
+static int tegra_wm8903_driver_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
diff --git a/sound/soc/tegra/trimslice.c b/sound/soc/tegra/trimslice.c
index 055fd0e..7fcf6c2 100644
--- a/sound/soc/tegra/trimslice.c
+++ b/sound/soc/tegra/trimslice.c
@@ -183,7 +183,7 @@ err:
 	return ret;
 }
 
-static int __devexit tegra_snd_trimslice_remove(struct platform_device *pdev)
+static int tegra_snd_trimslice_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 	struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
diff --git a/sound/soc/txx9/txx9aclc-ac97.c b/sound/soc/txx9/txx9aclc-ac97.c
index 4855398..16ab696 100644
--- a/sound/soc/txx9/txx9aclc-ac97.c
+++ b/sound/soc/txx9/txx9aclc-ac97.c
@@ -208,7 +208,7 @@ static int txx9aclc_ac97_dev_probe(struct platform_device *pdev)
 	return snd_soc_register_dai(&pdev->dev, &txx9aclc_ac97_dai);
 }
 
-static int __devexit txx9aclc_ac97_dev_remove(struct platform_device *pdev)
+static int txx9aclc_ac97_dev_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dai(&pdev->dev);
 	return 0;
diff --git a/sound/soc/txx9/txx9aclc.c b/sound/soc/txx9/txx9aclc.c
index bdb8165..45a6428 100644
--- a/sound/soc/txx9/txx9aclc.c
+++ b/sound/soc/txx9/txx9aclc.c
@@ -422,7 +422,7 @@ static int txx9aclc_soc_platform_probe(struct platform_device *pdev)
 	return snd_soc_register_platform(&pdev->dev, &txx9aclc_soc_platform);
 }
 
-static int __devexit txx9aclc_soc_platform_remove(struct platform_device *pdev)
+static int txx9aclc_soc_platform_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_platform(&pdev->dev);
 	return 0;
diff --git a/sound/soc/ux500/mop500.c b/sound/soc/ux500/mop500.c
index c04c927..fb694e9 100644
--- a/sound/soc/ux500/mop500.c
+++ b/sound/soc/ux500/mop500.c
@@ -136,7 +136,7 @@ static int mop500_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int __devexit mop500_remove(struct platform_device *pdev)
+static int mop500_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *mop500_card = platform_get_drvdata(pdev);
 
diff --git a/sound/soc/ux500/ux500_msp_dai.c b/sound/soc/ux500/ux500_msp_dai.c
index 5e9fc81..6a284fb 100644
--- a/sound/soc/ux500/ux500_msp_dai.c
+++ b/sound/soc/ux500/ux500_msp_dai.c
@@ -844,7 +844,7 @@ err_pclk:
 	return ret;
 }
 
-static int __devexit ux500_msp_drv_remove(struct platform_device *pdev)
+static int ux500_msp_drv_remove(struct platform_device *pdev)
 {
 	struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(&pdev->dev);
 
diff --git a/sound/soc/ux500/ux500_pcm.c b/sound/soc/ux500/ux500_pcm.c
index 9703b2d..a5cb09d 100644
--- a/sound/soc/ux500/ux500_pcm.c
+++ b/sound/soc/ux500/ux500_pcm.c
@@ -281,7 +281,7 @@ static struct snd_soc_platform_driver ux500_pcm_soc_drv = {
 	.pcm_new        = ux500_pcm_new,
 };
 
-static int __devexit ux500_pcm_drv_probe(struct platform_device *pdev)
+static int ux500_pcm_drv_probe(struct platform_device *pdev)
 {
 	int ret;
 
diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index 0953402..b4e9254 100644
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -2086,7 +2086,7 @@ static int cs4231_probe(struct platform_device *op)
 	return -ENODEV;
 }
 
-static int __devexit cs4231_remove(struct platform_device *op)
+static int cs4231_remove(struct platform_device *op)
 {
 	struct snd_cs4231 *chip = dev_get_drvdata(&op->dev);
 
diff --git a/sound/sparc/dbri.c b/sound/sparc/dbri.c
index aca99ec..71faacb 100644
--- a/sound/sparc/dbri.c
+++ b/sound/sparc/dbri.c
@@ -2663,7 +2663,7 @@ _err:
 	return err;
 }
 
-static int __devexit dbri_remove(struct platform_device *op)
+static int dbri_remove(struct platform_device *op)
 {
 	struct snd_card *card = dev_get_drvdata(&op->dev);
 
diff --git a/sound/spi/at73c213.c b/sound/spi/at73c213.c
index 9d92ecb..f78eae8 100644
--- a/sound/spi/at73c213.c
+++ b/sound/spi/at73c213.c
@@ -1007,7 +1007,7 @@ out:
 	return retval;
 }
 
-static int __devexit snd_at73c213_remove(struct spi_device *spi)
+static int snd_at73c213_remove(struct spi_device *spi)
 {
 	struct snd_card *card = dev_get_drvdata(&spi->dev);
 	struct snd_at73c213 *chip = card->private_data;
-- 
1.8.0

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Cc: gregkh@linuxfoundation.org, Jaroslav Kysela <perex@perex.cz>,
	Takashi Iwai <tiwai@suse.de>,
	Eric Miao <eric.y.miao@gmail.com>,
	Haojian Zhuang <haojian.zhuang@gmail.com>,
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	Jaya Kumar <jayakumar.alsa@gmail.com>,
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To: Bill Pemberton <wfp5p@virginia.edu>
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On Mon, Nov 19, 2012 at 01:21:17PM -0500, Bill Pemberton wrote:
>  sound/arm/aaci.c                    | 2 +-

For this driver,

Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
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From - Thu Nov 08 21:08:45 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: [GIT PULL] parisc fixes for 3.6-rc3
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Cc: Parisc List <linux-parisc@vger.kernel.org>,
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This is two bug fixes: one fixes a loophole where rt_sigprocmask() with
the wrong values panics the box (Denial of Service) and the other fixes
an aliasing problem with get_shared_area() which could cause data
corruption.

The patches are here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git parisc-fixes

The short changelog is:

Al Viro (1):
      fix user-triggerable panic on parisc

James Bottomley (1):
      fix virtual aliasing issue in get_shared_area()

And the diffstat:

 arch/parisc/kernel/signal32.c   | 6 ++++--
 arch/parisc/kernel/sys_parisc.c | 2 ++
 2 files changed, 6 insertions(+), 2 deletions(-)

Full diff is below.

James

---

diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index fd49aed..5dede04 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -65,7 +65,8 @@ put_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
 {
 	compat_sigset_t s;
 
-	if (sz != sizeof *set) panic("put_sigset32()");
+	if (sz != sizeof *set)
+		return -EINVAL;
 	sigset_64to32(&s, set);
 
 	return copy_to_user(up, &s, sizeof s);
@@ -77,7 +78,8 @@ get_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
 	compat_sigset_t s;
 	int r;
 
-	if (sz != sizeof *set) panic("put_sigset32()");
+	if (sz != sizeof *set)
+		return -EINVAL;
 
 	if ((r = copy_from_user(&s, up, sz)) == 0) {
 		sigset_32to64(set, &s);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 7426e40..f76c108 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -73,6 +73,8 @@ static unsigned long get_shared_area(struct address_space *mapping,
 	struct vm_area_struct *vma;
 	int offset = mapping ? get_offset(mapping) : 0;
 
+	offset = (offset + (pgoff << PAGE_SHIFT)) & 0x3FF000;
+
 	addr = DCACHE_ALIGN(addr - offset) + offset;
 
 	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {



From - Thu Nov 08 21:08:45 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: sigaltstack doesn't round ss.ss_sp as required
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In trying to build the debian libsigsegv2 package, I found that  
sigaltstack
doesn't round ss.ss_sp.  The tests intentionally pass an unaligned  
pointer.
This results in the two stack overflow tests failing.

According to the Linux manual page:

"When a signal handler is invoked on the alternate stack, the kernel
automatically aligns the address given in ss.ss_sp to a suitable address
boundary for the underlying hardware architecture."

The stack address for the signal handler needs to be adjusted to provide
for frame marker and stack argument slots.

Dave
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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] parisc: sigaltstack doesn't round ss.ss_sp as required
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On 24-Nov-12, at 10:05 AM, John David Anglin wrote:

> In trying to build the debian libsigsegv2 package, I found that  
> sigaltstack
> doesn't round ss.ss_sp.  The tests intentionally pass an unaligned  
> pointer.
> This results in the two stack overflow tests failing.


The attached patch fixes this issue.

Signed-off-by: John David Anglin <dave.anglin@bell.net>


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diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 594459b..324644d 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -188,8 +188,10 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
 	DBG(1,"get_sigframe: ka = %#lx, sp = %#lx, frame_size = %#lx\n",
 			(unsigned long)ka, sp, frame_size);
 	
+	/* Align alternate stack and reserve 64 bytes for the signal
+	   handler's frame marker.  */
 	if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp))
-		sp = current->sas_ss_sp; /* Stacks grow up! */
+		sp = (current->sas_ss_sp + 0x7f) & ~0x3f; /* Stacks grow up! */
 
 	DBG(1,"get_sigframe: Returning sp = %#lx\n", (unsigned long)sp);
 	return (void __user *) sp; /* Stacks grow up.  Fun. */

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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: [PATCH] parisc: sigaltstack doesn't round ss.ss_sp as required
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John David Anglin wrote:
> On 24-Nov-12, at 10:05 AM, John David Anglin wrote:
> > In trying to build the debian libsigsegv2 package, I found that
> > sigaltstack
> > doesn't round ss.ss_sp.  The tests intentionally pass an unaligned
> > pointer.
> > This results in the two stack overflow tests failing.
> 
> The attached patch fixes this issue.

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 594459b..324644d 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -188,8 +188,10 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
 	DBG(1,"get_sigframe: ka = %#lx, sp = %#lx, frame_size = %#lx\n",
 			(unsigned long)ka, sp, frame_size);
 	
+	/* Align alternate stack and reserve 64 bytes for the signal
+	   handler's frame marker.  */
 	if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp))
-		sp = current->sas_ss_sp; /* Stacks grow up! */
+		sp = (current->sas_ss_sp + 0x7f) & ~0x3f; /* Stacks grow up! */
 
 	DBG(1,"get_sigframe: Returning sp = %#lx\n", (unsigned long)sp);
 	return (void __user *) sp; /* Stacks grow up.  Fun. */

What about something like this (entirely untested, but you'll get the idea):

sp = round_down(current->sas_ss_sp + 64, 64);

Greetings.

Eike
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From - Thu Nov 08 21:08:46 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: sigaltstack doesn't round ss.ss_sp as required
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Cc: Helge Deller <deller@gmx.de>,
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	"James E.J. Bottomley" <jejb@parisc-linux.org>
To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 25-Nov-12, at 5:07 PM, Rolf Eike Beer wrote:

> John David Anglin wrote:
>> On 24-Nov-12, at 10:05 AM, John David Anglin wrote:
>>> In trying to build the debian libsigsegv2 package, I found that
>>> sigaltstack
>>> doesn't round ss.ss_sp.  The tests intentionally pass an unaligned
>>> pointer.
>>> This results in the two stack overflow tests failing.
>>
>> The attached patch fixes this issue.
>
> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
> index 594459b..324644d 100644
> --- a/arch/parisc/kernel/signal.c
> +++ b/arch/parisc/kernel/signal.c
> @@ -188,8 +188,10 @@ get_sigframe(struct k_sigaction *ka, unsigned  
> long sp, size_t frame_size)
> 	DBG(1,"get_sigframe: ka = %#lx, sp = %#lx, frame_size = %#lx\n",
> 			(unsigned long)ka, sp, frame_size);
> 	
> +	/* Align alternate stack and reserve 64 bytes for the signal
> +	   handler's frame marker.  */
> 	if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp))
> -		sp = current->sas_ss_sp; /* Stacks grow up! */
> +		sp = (current->sas_ss_sp + 0x7f) & ~0x3f; /* Stacks grow up! */
>
> 	DBG(1,"get_sigframe: Returning sp = %#lx\n", (unsigned long)sp);
> 	return (void __user *) sp; /* Stacks grow up.  Fun. */
>
> What about something like this (entirely untested, but you'll get  
> the idea):
>
> sp = round_down(current->sas_ss_sp + 64, 64);


We need to round up to ensure a full 64 bytes for frame marker.
I'll leave it to James to decide if it makes the code clearer.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:08:46 2018
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From: Bill Pemberton <wfp5p@virginia.edu>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 07/20] ALSA: parisc/harmony: remove __dev* attributes
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To: alsa-devel@alsa-project.org
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CONFIG_HOTPLUG is going away as an option.  As result the __dev*
markings will be going away.

Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst,
and __devexit.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: linux-parisc@vger.kernel.org
---
 sound/parisc/harmony.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/sound/parisc/harmony.c b/sound/parisc/harmony.c
index f47f9e2..0e66ba4 100644
--- a/sound/parisc/harmony.c
+++ b/sound/parisc/harmony.c
@@ -856,7 +856,7 @@ static struct snd_kcontrol_new snd_harmony_controls[] = {
 		       HARMONY_GAIN_HE_SHIFT, 1, 0),
 };
 
-static void __devinit
+static void
 snd_harmony_mixer_reset(struct snd_harmony *h)
 {
 	harmony_mute(h);
@@ -865,7 +865,7 @@ snd_harmony_mixer_reset(struct snd_harmony *h)
 	harmony_unmute(h);
 }
 
-static int __devinit
+static int
 snd_harmony_mixer_init(struct snd_harmony *h)
 {
 	struct snd_card *card;
@@ -915,7 +915,7 @@ snd_harmony_dev_free(struct snd_device *dev)
 	return snd_harmony_free(h);
 }
 
-static int __devinit
+static int
 snd_harmony_create(struct snd_card *card, 
 		   struct parisc_device *padev, 
 		   struct snd_harmony **rchip)
@@ -972,7 +972,7 @@ free_and_ret:
 	return err;
 }
 
-static int __devinit
+static int
 snd_harmony_probe(struct parisc_device *padev)
 {
 	int err;
@@ -1012,7 +1012,7 @@ free_and_ret:
 	return err;
 }
 
-static int __devexit
+static int
 snd_harmony_remove(struct parisc_device *padev)
 {
 	snd_card_free(parisc_get_drvdata(padev));
@@ -1024,7 +1024,7 @@ static struct parisc_driver snd_harmony_driver = {
 	.name = "harmony",
 	.id_table = snd_harmony_devtable,
 	.probe = snd_harmony_probe,
-	.remove = __devexit_p(snd_harmony_remove),
+	.remove = snd_harmony_remove,
 };
 
 static int __init 
-- 
1.8.0.1

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From: Bill Pemberton <wfp5p@virginia.edu>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 09/20] ALSA: ad1889: remove __dev* attributes
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CONFIG_HOTPLUG is going away as an option.  As result the __dev*
markings will be going away.

Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst,
and __devexit.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Thibaut Varene <T-Bone@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
---
 sound/pci/ad1889.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index e672ff4..ad8a311 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -624,7 +624,7 @@ snd_ad1889_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int __devinit
+static int
 snd_ad1889_pcm_init(struct snd_ad1889 *chip, int device, struct snd_pcm **rpcm)
 {
 	int err;
@@ -747,7 +747,7 @@ snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffe
 	snd_iprintf(buffer, "Resampler samplerate: %u Hz\n", reg);
 }
 
-static void __devinit
+static void
 snd_ad1889_proc_init(struct snd_ad1889 *chip)
 {
 	struct snd_info_entry *entry;
@@ -767,7 +767,7 @@ static struct ac97_quirk ac97_quirks[] = {
 	{ } /* terminator */
 };
 
-static void __devinit
+static void
 snd_ad1889_ac97_xinit(struct snd_ad1889 *chip)
 {
 	u16 reg;
@@ -805,7 +805,7 @@ snd_ad1889_ac97_free(struct snd_ac97 *ac97)
 	chip->ac97 = NULL;
 }
 
-static int __devinit
+static int
 snd_ad1889_ac97_init(struct snd_ad1889 *chip, const char *quirk_override)
 {
 	int err;
@@ -878,7 +878,7 @@ snd_ad1889_dev_free(struct snd_device *device)
 	return snd_ad1889_free(chip);
 }
 
-static int __devinit
+static int
 snd_ad1889_init(struct snd_ad1889 *chip) 
 {
 	ad1889_writew(chip, AD_DS_CCS, AD_DS_CCS_CLKEN); /* turn on clock */
@@ -892,7 +892,7 @@ snd_ad1889_init(struct snd_ad1889 *chip)
 	return 0;
 }
 
-static int __devinit
+static int
 snd_ad1889_create(struct snd_card *card,
 		  struct pci_dev *pci,
 		  struct snd_ad1889 **rchip)
@@ -978,7 +978,7 @@ free_and_ret:
 	return err;
 }
 
-static int __devinit
+static int
 snd_ad1889_probe(struct pci_dev *pci,
 		 const struct pci_device_id *pci_id)
 {
@@ -1042,7 +1042,7 @@ free_and_ret:
 	return err;
 }
 
-static void __devexit
+static void
 snd_ad1889_remove(struct pci_dev *pci)
 {
 	snd_card_free(pci_get_drvdata(pci));
@@ -1059,7 +1059,7 @@ static struct pci_driver ad1889_pci_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_ad1889_ids,
 	.probe = snd_ad1889_probe,
-	.remove = __devexit_p(snd_ad1889_remove),
+	.remove = snd_ad1889_remove,
 };
 
 module_pci_driver(ad1889_pci_driver);
-- 
1.8.0.1

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From - Thu Nov 08 21:08:46 2018
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From: Al Viro <viro@ZenIV.linux.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc] ptrace breakage
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	1) PTRACE_SYSCALL doesn't work for 64bit process on parisc64.
Compat syscall table is used instead of 64bit one.  IMO we should either
refuse to allow PTRACE_SYSCALL for 64bit processes or duplicate the
logics choosing the right syscall table into .Ltracesys.

	2) if you have let the tracee run with PTRACE_SYSCALL and
it had stopped, you can use PTRACE_POKEUSR to modify syscall number
(r20) and arguments 1--4 (r26--r23).  Modifications will have effect.
However, modifying arguments 5 and 6 (r22 and r21 resp.) works only
when process (32bit one) runs on 64bit host - on 32bit one it has no
effect.  AFAICS, the diff below should fix that one.

	Comments?

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 86742df..5e05524 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -309,10 +309,13 @@ tracesys_next:
 	LDREG   TASK_PT_GR25(%r1), %r25
 	LDREG   TASK_PT_GR24(%r1), %r24
 	LDREG   TASK_PT_GR23(%r1), %r23
-#ifdef CONFIG_64BIT
 	LDREG   TASK_PT_GR22(%r1), %r22
 	LDREG   TASK_PT_GR21(%r1), %r21
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
+#else
+	stw     %r22, -52(%r30)                 /* 5th argument */
+	stw     %r21, -56(%r30)                 /* 6th argument */
 #endif
 
 	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
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On Sun, 2012-12-09 at 06:16 +0000, Al Viro wrote:
> 	1) PTRACE_SYSCALL doesn't work for 64bit process on parisc64.
> Compat syscall table is used instead of 64bit one.  IMO we should either
> refuse to allow PTRACE_SYSCALL for 64bit processes or duplicate the
> logics choosing the right syscall table into .Ltracesys.

We don't have a 64 bit userspace (except for a toy one I created to test
out a few thing), so I'd be happy returning -ENOSYS.

> 	2) if you have let the tracee run with PTRACE_SYSCALL and
> it had stopped, you can use PTRACE_POKEUSR to modify syscall number
> (r20) and arguments 1--4 (r26--r23).  Modifications will have effect.
> However, modifying arguments 5 and 6 (r22 and r21 resp.) works only
> when process (32bit one) runs on 64bit host - on 32bit one it has no
> effect.  AFAICS, the diff below should fix that one.
> 
> 	Comments?
> 
> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> index 86742df..5e05524 100644
> --- a/arch/parisc/kernel/syscall.S
> +++ b/arch/parisc/kernel/syscall.S
> @@ -309,10 +309,13 @@ tracesys_next:
>  	LDREG   TASK_PT_GR25(%r1), %r25
>  	LDREG   TASK_PT_GR24(%r1), %r24
>  	LDREG   TASK_PT_GR23(%r1), %r23
> -#ifdef CONFIG_64BIT
>  	LDREG   TASK_PT_GR22(%r1), %r22
>  	LDREG   TASK_PT_GR21(%r1), %r21
> +#ifdef CONFIG_64BIT
>  	ldo	-16(%r30),%r29			/* Reference param save area */
> +#else
> +	stw     %r22, -52(%r30)                 /* 5th argument */
> +	stw     %r21, -56(%r30)                 /* 6th argument */
>  #endif

I'll defer to the glibc guys on this.  The code before you modified it
is correct according to the ABI, but it does look like gate calls are
done with 8 args in registers on 32 bit in which case the above would be
correct.

James


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From: Al Viro <viro@ZenIV.linux.org.uk>
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Subject: Re: [parisc] ptrace breakage
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On Sun, Dec 09, 2012 at 10:19:51AM +0000, James Bottomley wrote:

> > 	2) if you have let the tracee run with PTRACE_SYSCALL and
> > it had stopped, you can use PTRACE_POKEUSR to modify syscall number
> > (r20) and arguments 1--4 (r26--r23).  Modifications will have effect.
> > However, modifying arguments 5 and 6 (r22 and r21 resp.) works only
> > when process (32bit one) runs on 64bit host - on 32bit one it has no
> > effect.  AFAICS, the diff below should fix that one.
> > 
> > 	Comments?
> > 
> > diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> > index 86742df..5e05524 100644
> > --- a/arch/parisc/kernel/syscall.S
> > +++ b/arch/parisc/kernel/syscall.S
> > @@ -309,10 +309,13 @@ tracesys_next:
> >  	LDREG   TASK_PT_GR25(%r1), %r25
> >  	LDREG   TASK_PT_GR24(%r1), %r24
> >  	LDREG   TASK_PT_GR23(%r1), %r23
> > -#ifdef CONFIG_64BIT
> >  	LDREG   TASK_PT_GR22(%r1), %r22
> >  	LDREG   TASK_PT_GR21(%r1), %r21
> > +#ifdef CONFIG_64BIT
> >  	ldo	-16(%r30),%r29			/* Reference param save area */
> > +#else
> > +	stw     %r22, -52(%r30)                 /* 5th argument */
> > +	stw     %r21, -56(%r30)                 /* 6th argument */
> >  #endif
> 
> I'll defer to the glibc guys on this.  The code before you modified it
> is correct according to the ABI, but it does look like gate calls are
> done with 8 args in registers on 32 bit in which case the above would be
> correct.

Er...  What happens on PTRACE_SYSCALL path is that we reload the registers
clobbered by do_syscall_trace_enter().  Sure, on 32bit we'd already pushed
the arguments 5 and 6 on stack (originally from r22/r21), so they are not
clobbered.  However, this reload has a side effect - if whoever's tracing us
does PTRACE_POKEUSER to modify pt_regs, we end up with changed value reloaded.
What this patch does is making this behaviour consistent between 32bit and
64bit hosts.

BTW, note that if we e.g. end up restarting the syscall, the changes to r22
and r21 *will* have effect on the second pass on 32bit.  With the current
kernel.  The registers will be restored from pt_regs on the way out.
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From: Vineet Gupta <vgupta@synopsys.com>

* parisc: /proc/sys/kernel/unaligned-trap => SYSCTL_ARCH_UNALIGN_ALLOW

* ia64: /proc/sys/kernel/ignore-unaligned-usertrap =>
					SYSCTL_ARCH_UNALIGN_NO_WARN

This allows other architectures, specifically ARC to reuse these sysctl
knobs.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Serge Hallyn <serge.hallyn@canonical.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: linux-ia64@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 arch/ia64/Kconfig   |    1 +
 arch/parisc/Kconfig |    1 +
 init/Kconfig        |   16 ++++++++++++++++
 kernel/sysctl.c     |   16 +++++++++++++---
 4 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 3279646..5fb1064 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -40,6 +40,7 @@ config IA64
 	select ARCH_THREAD_INFO_ALLOCATOR
 	select ARCH_CLOCKSOURCE_DATA
 	select GENERIC_TIME_VSYSCALL_OLD
+	select SYSCTL_ARCH_UNALIGN_NO_WARN
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_RELA
 	default y
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 11def45..7d9de54 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -20,6 +20,7 @@ config PARISC
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_STRNCPY_FROM_USER
+	select SYSCTL_ARCH_UNALIGN_ALLOW
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_RELA
 
diff --git a/init/Kconfig b/init/Kconfig
index 6fdd6e3..de4b184 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1169,6 +1169,22 @@ config SYSCTL_EXCEPTION_TRACE
 	help
 	  Enable support for /proc/sys/debug/exception-trace.
 
+config SYSCTL_ARCH_UNALIGN_NO_WARN
+	bool
+	help
+	  Enable support for /proc/sys/kernel/ignore-unaligned-usertrap
+	  Allows arch to define/use @no_unaligned_warning to possbly warn about
+	  unaligned access emulation going on under the hood.
+	  see arch/ia64/kernel/unaligned.c for reference
+
+config SYSCTL_ARCH_UNALIGN_ALLOW
+	bool
+	help
+	  Enable support for /proc/sys/kernel/unaligned-trap
+	  Allows arches to define/use @unaligned_enabled to runtime toggle
+	  the unaligned access emulation.
+	  see arch/parisc/kernel/unaligned.c for reference
+
 config KALLSYMS
 	 bool "Load all symbols for debugging/ksymoops" if EXPERT
 	 default y
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 26f65ea..9c618bf 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -157,14 +157,20 @@ extern int sysctl_tsb_ratio;
 
 #ifdef __hppa__
 extern int pwrsw_enabled;
-extern int unaligned_enabled;
 #endif
 
 #ifdef CONFIG_IA64
-extern int no_unaligned_warning;
 extern int unaligned_dump_stack;
 #endif
 
+#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW
+extern int unaligned_enabled;
+#endif
+
+#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN
+extern int no_unaligned_warning;
+#endif
+
 #ifdef CONFIG_PROC_SYSCTL
 static int proc_do_cad_pid(struct ctl_table *table, int write,
 		  void __user *buffer, size_t *lenp, loff_t *ppos);
@@ -504,6 +510,8 @@ static struct ctl_table kern_table[] = {
 	 	.mode		= 0644,
 		.proc_handler	= proc_dointvec,
 	},
+#endif
+#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW
 	{
 		.procname	= "unaligned-trap",
 		.data		= &unaligned_enabled,
@@ -870,7 +878,7 @@ static struct ctl_table kern_table[] = {
 		.proc_handler	= proc_doulongvec_minmax,
 	},
 #endif
-#ifdef CONFIG_IA64
+#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN
 	{
 		.procname	= "ignore-unaligned-usertrap",
 		.data		= &no_unaligned_warning,
@@ -878,6 +886,8 @@ static struct ctl_table kern_table[] = {
 	 	.mode		= 0644,
 		.proc_handler	= proc_dointvec,
 	},
+#endif
+#ifdef CONFIG_IA64
 	{
 		.procname	= "unaligned-dump-stack",
 		.data		= &unaligned_dump_stack,
-- 
1.7.4.1


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The CMake test suite includes running some git operations. I see the git test 
failing every some days, e.g. here:

http://open.cdash.org/testDetails.php?test=164070366&build=2734103

The syslog output to this event is this:

Dec 27 05:14:38 voyager kernel: 
Dec 27 05:14:38 voyager kernel: do_page_fault() pid=21120 command='git' type=6 
address=0x00000003
Dec 27 05:14:38 voyager kernel: 
Dec 27 05:14:38 voyager kernel: YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Dec 27 05:14:38 voyager kernel: PSW: 00000000000001000000000000001111 Not 
tainted
Dec 27 05:14:38 voyager kernel: r00-03  0004000f 4083bb40 00000000 00000007
Dec 27 05:14:38 voyager kernel: r04-07  4036e6f8 4103b480 00000000 4083c000
Dec 27 05:14:38 voyager kernel: r08-11  000000fb 4036b624 403709a4 00000000
Dec 27 05:14:38 voyager kernel: r12-15  402ffc60 fffff000 00800000 001397ae
Dec 27 05:14:38 voyager kernel: r16-19  fb217954 fb217964 4083c000 00000000
Dec 27 05:14:38 voyager kernel: r20-23  00000003 00000054 00000049 4103b900
Dec 27 05:14:38 voyager kernel: r24-27  0000000e 00123ec2 00000000 001350fc
Dec 27 05:14:38 voyager kernel: r28-31  00000000 00000002 4083c280 fefefeff
Dec 27 05:14:38 voyager kernel: sr00-03  0000002c 00000000 00000000 0000002c
Dec 27 05:14:38 voyager kernel: sr04-07  0000002c 0000002c 0000002c 0000002c
Dec 27 05:14:38 voyager kernel: 
Dec 27 05:14:38 voyager kernel: VZOUICununcqcqcqcqcqcrmunTDVZOUI
Dec 27 05:14:38 voyager kernel: FPSR: 00000000000000000000000000000000
Dec 27 05:14:38 voyager kernel: FPER1: 00000000
Dec 27 05:14:38 voyager kernel: fr00-03  0000000000000000 0000000000000000 
0000000000000000 0000000000000000
Dec 27 05:14:38 voyager kernel: fr04-07  0000000000000000 7d00000000000000 
00000004e2000000 4097700000000000
Dec 27 05:14:38 voyager kernel: fr08-11  0000000000000000 0000000000000000 
00000004019ff37b 2ecf5011101b4ce8
Dec 27 05:14:38 voyager kernel: fr12-15  4097700000000000 0000000000000000 
41d436ef72347f39 0000000050d30cd9
Dec 27 05:14:38 voyager kernel: fr16-19  0004fe0f105ad000 1012db6800000006 
0000000000000000 0000000000000031
Dec 27 05:14:38 voyager kernel: fr20-23  105ad00010605800 000000061060580a 
0000000000000088 00229d5b00000000
Dec 27 05:14:38 voyager kernel: fr24-27  0000000000000000 00000000a0b5ed8d 
00000000000000ff 0000000000000000
Dec 27 05:14:38 voyager kernel: fr28-31  00000005000203f9 105ad2b810592000 
105ad2a4000000ff 2f8302001011b974
Dec 27 05:14:38 voyager kernel: 
Dec 27 05:14:38 voyager kernel: IASQ: 0000002c 0000002c IAOQ: 00000003 
00000007
Dec 27 05:14:38 voyager kernel: IIR: 43ffff80    ISR: 0000002c  IOR: 4103b504
Dec 27 05:14:38 voyager kernel: CPU:        0   CR30: 2f100000 CR31: ffffffff
Dec 27 05:14:38 voyager kernel: ORIG_R28: 00000000
Dec 27 05:14:38 voyager kernel: IAOQ[0]: 00000003
Dec 27 05:14:38 voyager kernel: IAOQ[1]: 00000007
Dec 27 05:14:38 voyager kernel: RP(r2): 00000000

Kernel is up to date:

Linux voyager 3.7.1 #1 Thu Dec 20 12:22:22 CET 2012 parisc PA8600 (PCX-W+) 
9000/785/C3600 GNU/Linux

Glibc is 2.14.1.

Any ideas?

Eike
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From - Thu Nov 08 21:08:46 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Random crashes when calling git
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On 27-Dec-12, at 4:42 AM, Rolf Eike Beer wrote:

> Any ideas?

Try running the test under gdb.  Git has branched to location 0 causing
a page fault.  We need a backtrace(s) to learn something useful.  There
may be multiple backtraces (info thread).

Enable core dumps if not enabled.  Might find something useful by
examining it (gdb -c core /usr/bin/git).

Git uses threads.  I expect the problem is thread related since it  
doesn't
happen all the time, and for that reason it might not be reproducible  
running
under gdb..

You might try building git and running its testsuite.  I remember that
some thread related tests used to fail for me.  I think it may be  
possible
to build git without pthread support.

Dave
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Subject: [PATCH] parisc: Remove obsolete regs parameter from do_execve() in hpux_execve()
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commit da3d4c5fa56236dd924d77ffc4f982356816b93b ("get rid of pt_regs
argument of do_execve()") removed the parameter, but forgot to update
hpux_execve():

arch/parisc/hpux/fs.c: In function 'hpux_execve':
arch/parisc/hpux/fs.c:47:6: error: too many arguments to function 'do_execve'

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
http://kisskb.ellerman.id.au/kisskb/buildresult/7864854/

 arch/parisc/hpux/fs.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
index a0760b8..838b479 100644
--- a/arch/parisc/hpux/fs.c
+++ b/arch/parisc/hpux/fs.c
@@ -43,8 +43,7 @@ int hpux_execve(struct pt_regs *regs)
 
 	error = do_execve(filename->name,
 			  (const char __user *const __user *) regs->gr[25],
-			  (const char __user *const __user *) regs->gr[24],
-			  regs);
+			  (const char __user *const __user *) regs->gr[24]);
 
 	putname(filename);
 
-- 
1.7.0.4

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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] parisc: Improve ptrace support for gdb single-step
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Various GCC tests use gdb to simulate a multithreaded application.  Many
of these tests have been failing on parisc linux.

GCC does this by using gdb to single-step the application, then gdb is  
used to
call other test specific code.  Where this fails is when the  
application is stepped
into the delay slot of a taken branch.  This sets the PSW B bit.  When  
the test
specific code is executed, this usually clears the PSW B bit.   
Currently, gdb is
not allowed to set the B bit.  So, the code falls through what should  
be a taken
branch.

The attached patch adds the PSW B bit to the set of bits that gdb is  
allowed to
set.  In order to set the B bit, the trace system call must return  
using an interrupt
restore.  The patch also modifies this code to use the saved IAOQ  
values when
they are saved by a ptrace syscall or interruption.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
---



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diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 18670a0..c19b2b0 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -2064,7 +2057,7 @@ syscall_restore:
 
 	/* Are we being ptraced? */
 	ldw	TASK_FLAGS(%r1),%r19
-	ldi	(_TIF_SINGLESTEP|_TIF_BLOCKSTEP),%r2
+	ldi	_TIF_SYSCALL_TRACE_MASK,%r2
 	and,COND(=)	%r19,%r2,%r0
 	b,n	syscall_restore_rfi
 
@@ -2177,15 +2170,23 @@ syscall_restore_rfi:
 	/* sr2 should be set to zero for userspace syscalls */
 	STREG	%r0,TASK_PT_SR2(%r1)
 
-pt_regs_ok:
 	LDREG	TASK_PT_GR31(%r1),%r2
-	depi	3,31,2,%r2			   /* ensure return to user mode. */
-	STREG	%r2,TASK_PT_IAOQ0(%r1)
+	depi	3,31,2,%r2		   /* ensure return to user mode. */
+	STREG   %r2,TASK_PT_IAOQ0(%r1)
 	ldo	4(%r2),%r2
 	STREG	%r2,TASK_PT_IAOQ1(%r1)
+	b	intr_restore
 	copy	%r25,%r16
+
+pt_regs_ok:
+	LDREG	TASK_PT_IAOQ0(%r1),%r2
+	depi	3,31,2,%r2		   /* ensure return to user mode. */
+	STREG	%r2,TASK_PT_IAOQ0(%r1)
+	LDREG	TASK_PT_IAOQ1(%r1),%r2
+	depi	3,31,2,%r2
+	STREG	%r2,TASK_PT_IAOQ1(%r1)
 	b	intr_restore
-	nop
+	copy	%r25,%r16
 
 	.import schedule,code
 syscall_do_resched:
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 857c2f5..534abd4 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -26,7 +26,7 @@
 #include <asm/asm-offsets.h>
 
 /* PSW bits we allow the debugger to modify */
-#define USER_PSW_BITS	(PSW_N | PSW_V | PSW_CB)
+#define USER_PSW_BITS	(PSW_N | PSW_B | PSW_V | PSW_CB)
 
 /*
  * Called by kernel/ptrace.c when detaching..

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To: Carlos O'Donell <carlos@systemhalted.org>
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On 29-Dec-12, at 8:31 AM, Carlos O'Donell wrote:

>
> On Dec 28, 2012 6:18 PM, "John David Anglin" <dave.anglin@bell.net>  
> wrote:
> >
> > Various GCC tests use gdb to simulate a multithreaded  
> application.  Many
> > of these tests have been failing on parisc linux.
> >
> > GCC does this by using gdb to single-step the application, then  
> gdb is used to
> > call other test specific code.  Where this fails is when the  
> application is stepped
> > into the delay slot of a taken branch.  This sets the PSW B bit.   
> When the test
> > specific code is executed, this usually clears the PSW B bit.   
> Currently, gdb is
> > not allowed to set the B bit.  So, the code falls through what  
> should be a taken
> > branch.
>
> How exactly does this trigger? Step into delay slot, then what, call  
> an inferior function, then resume?
>
Yes.

I have attached a test case and gdb script which show bug.

Compile testcase with something like the following:
Executing on host: /home/dave/gnu/gcc/objdir/gcc/xgcc -B/home/dave/gnu/ 
gcc/objdir/gcc/ /home/dave/gnu/gcc/gcc/gcc/testsuite/gcc.dg/simulate- 
thread/speculative-store-4.c  -fno-diagnostics-show-caret   -O0 -g  -- 
param allow-store-data-races=0  -lm   -o speculative-store-4.exe

Execute with something like:
gdb -nx -nw -x /home/dave/gnu/gcc/gcc/gcc/testsuite/gcc.dg/simulate- 
thread/simulate-thread.gdb ./speculative-store-4.exe

You can see that the gdb script executes inferior functions to  
simulate thread behavior and to determine
whether the test is done.

I debugged this by adding extra print and disp statements to the  
kernel, gdb and the gdb script.

According to the PA 2.0 arch, a non sequential iaoq queue without the  
B bit being set invokes undefined
behavior.  Possibly, this should be checked for when the return is  
setup after pt_regs_ok.  However, I
think it is ok to let gdb play with the B bit.  See the definition of  
USER_PSW_MASK in psw.h:

#define USER_PSW_MASK (WIDE_PSW | PSW_T | PSW_N | PSW_X | PSW_B |  
PSW_V | PSW_CB)

This defines the PSW bits that the user can change using exception  
support.  Probably, the two sets
should be the same.

> > The attached patch adds the PSW B bit to the set of bits that gdb  
> is allowed to
> > set.  In order to set the B bit, the trace system call must return  
> using an interrupt
> > restore.  The patch also modifies this code to use the saved IAOQ  
> values when
> > they are saved by a ptrace syscall or interruption.
> >
> > Signed-off-by: John David Anglin <dave.anglin@bell.net>
>
> What testing did you do with patch?
>
I have been running the change with 3.7.x kernels for a couple of  
weeks.  I checked that strace still works
and GCC test results for tests using gdb are now similar to the  
results on hpux.

I believe gdb still has problems regarding delay slots, PSW bits and  
inferior function calls.  This mainly shows
up in the GCC guality tests.  Of course, there are hundreds of FAILs  
in the gdb testsuite...

Dave
--
John David Anglin	dave.anglin@bell.net



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/* { dg-do link } */
/* { dg-options "--param allow-store-data-races=0" } */
/* { dg-final { simulate-thread } } */

#include <stdio.h>
#include <stdlib.h>

#include "simulate-thread.h"

/* PR 54139 */
/* Test that speculative stores do not happen for --param
   allow-store-data-races=0.  */

int g_13=1, insns=1;

__attribute__((noinline))
void simulate_thread_main()
{
  int l_245;

  /* Since g_13 is unilaterally set positive above, there should be
     no store to g_13 below.  */
  for (l_245 = 0; l_245 <= 1; l_245 += 1)
    for (; g_13 <= 0; g_13 = 1)
      ;
}

int main()
{
  simulate_thread_main ();
  simulate_thread_done ();
  return 0;
}

void simulate_thread_other_threads ()
{
  ++g_13;
  ++insns;
}

int simulate_thread_step_verify ()
{
  return 0;
}

int simulate_thread_final_verify ()
{
  if (g_13 != insns)
    {
      printf("FAIL: g_13 was incorrectly cached\n");
      return 1;
    }
  return 0;
}

--Apple-Mail-59-535004512
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set height 0
break simulate_thread_main
# disp/i $pc
run

set $ret = 0
while (simulate_thread_fini != 1) && (! $ret)
  set $ret |= simulate_thread_wrapper_other_threads()
  stepi
  set $ret |= simulate_thread_step_verify()
end

if (! $ret)
  set $ret |= simulate_thread_wrapper_final_verify()
end
continue
quit $ret

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From: John David Anglin <dave.anglin@bell.net>
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Cc: Carlos O'Donell <carlos@systemhalted.org>, jejb@parisc-linux.org,
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To: John David Anglin <dave.anglin@bell.net>
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On 29-Dec-12, at 11:42 AM, John David Anglin wrote:

> I have attached a test case and gdb script which show bug.


Forgot .h file.

Dave
--
John David Anglin	dave.anglin@bell.net



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int simulate_thread_fini = 0;

void __attribute__((noinline))
simulate_thread_done ()
{
  simulate_thread_fini = 1;
}

/* A hostile thread is one which changes a memory location so quickly
   that another thread may never see the same value again.  This is
   simulated when simulate_thread_other_thread() is defined to modify
   a memory location every cycle.

   A process implementing a dependency on this value can run into
   difficulties with such a hostile thread.  For instance,
   implementing an add with a compare_and_swap loop goes something
   like:

     expected = *mem;
   loop:
     new = expected += value;
     if (!succeed (expected = compare_and_swap (mem, expected, new)))
       goto loop;

   If the content of 'mem' are changed every cycle by
   simulate_thread_other_thread () this will become an infinite loop
   since the value *mem will never be 'expected' by the time the
   compare_and_swap is executed.

   HOSTILE_THREAD_THRESHOLD defines the number of intructions which a
   program will execute before triggering the hostile thread
   pause. The pause will last for HOSTILE_THREAD_PAUSE instructions,
   and then the counter will reset and begin again.  During the pause
   period, simulate_thread_other_thread will not be called.

   This provides a chance for forward progress to be made and the
   infinite loop to be avoided.

   If the testcase defines HOSTILE_PAUSE_ERROR, then it will be
   considered a RUNTIME FAILURE if the hostile pause is triggered.
   This will allow to test for guaranteed forward progress routines.

   If the default values for HOSTILE_THREAD_THRESHOLD or
   HOSTILE_THREAD_PAUSE are insufficient, then the testcase may
   override these by defining the values before including this file.

   Most testcase are intended to run for very short periods of time,
   so these defaults are considered to be high enough to not trigger
   on a typical case, but not drag the test time out too much if a
   hostile condition is interferring.  */

  
/* Define the threshold instruction count to start pausing the hostile 
   thread.  To avoid huge potential log files when things are not going well,
   set this number very low.  If a test specifically requires that the forward
   progress guarantee is made, this number should be raised by the testcase. */
#if !defined (HOSTILE_THREAD_THRESHOLD)
#define HOSTILE_THREAD_THRESHOLD 	50
#endif

/* Define the length of pause in cycles for the hostile thread to pause to
   allow forward progress to be made.  If this number is too low, a 
   compare_and_swap loop may not have time to finish, especially on a
   128 bit operation. */
#if !defined (HOSTILE_THREAD_PAUSE)
#define HOSTILE_THREAD_PAUSE	20
#endif

/* Define the number of instructions which are allowed to be executed before
   the testcase is deemed to fail.  This is primarily to avoid huge log files
   when a testcase goes into an infinte loop.  */
#if !defined (INSN_COUNT_THRESHOLD)
#define INSN_COUNT_THRESHOLD	10000
#endif

void simulate_thread_other_threads (void);
int simulate_thread_final_verify (void);

static int simulate_thread_hostile_pause = 0;

/* This function wraps simulate_thread_other_threads an monitors for
   an infinite loop.  If the threshold value HOSTILE_THREAD_THRESHOLD
   is reached, the other_thread process is paused for
   HOSTILE_THREAD_PAUSE cycles before resuming, and the counters start
   again.  */
int
simulate_thread_wrapper_other_threads()
{
  static int insn_count = 0;
  static int hostile_count = 0;
  static int hostile_pause = 0;

  if (++insn_count >= INSN_COUNT_THRESHOLD)
    {
      printf ("FAIL: Testcase exceeded maximum instruction count threshold\n");
      return 1;
    }

  if (++hostile_count >= HOSTILE_THREAD_THRESHOLD)
    {
      if (!simulate_thread_hostile_pause)
        simulate_thread_hostile_pause = 1;

      /* Count cycles before calling the hostile thread again.  */
      if (hostile_pause++ < HOSTILE_THREAD_PAUSE)
	return 0;

      /* Reset the pause counter, as well as the thread counter.  */
      hostile_pause = 0;
      hostile_count = 0;
    }
  simulate_thread_other_threads ();
  return 0;
}


/* If the test case defines HOSTILE_PAUSE_ERROR, then the test case
   will fail execution if it had a hostile pause.  */
int
simulate_thread_wrapper_final_verify ()
{
  int ret = simulate_thread_final_verify ();
#if defined (HOSTILE_PAUSE_ERROR)
  if (simulate_thread_hostile_pause)
    {
      printf ("FAIL: Forward progress made only by pausing hostile thread\n");
      ret = ret | 1;    /* 0 indicates proper comnpletion.  */
    }
#endif
  return ret;
}

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Subject: Re: Random crashes when calling git
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John David Anglin wrote:
> On 27-Dec-12, at 4:42 AM, Rolf Eike Beer wrote:
> > Any ideas?
> 
> Try running the test under gdb.  Git has branched to location 0 causing
> a page fault.  We need a backtrace(s) to learn something useful.  There
> may be multiple backtraces (info thread).

I have not managed to reproduce this this way.

> Enable core dumps if not enabled.  Might find something useful by
> examining it (gdb -c core /usr/bin/git).
> 
> Git uses threads.  I expect the problem is thread related since it
> doesn't
> happen all the time, and for that reason it might not be reproducible
> running under gdb..
> 
> You might try building git and running its testsuite.  I remember that
> some thread related tests used to fail for me.  I think it may be
> possible to build git without pthread support.

I got 2 failures in 5400, 1 in 5406 and one in 5500 so far (in 4 runs).

Eike
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John David Anglin wrote:
> On 27-Dec-12, at 4:42 AM, Rolf Eike Beer wrote:
> > Any ideas?
> 
> Try running the test under gdb.  Git has branched to location 0 causing
> a page fault.  We need a backtrace(s) to learn something useful.  There
> may be multiple backtraces (info thread).

This did not lead anywhere. I tried running the test only with strace, but 
even that did not lead to any crash.

> Enable core dumps if not enabled.  Might find something useful by
> examining it (gdb -c core /usr/bin/git).
> 
> Git uses threads.  I expect the problem is thread related since it
> doesn't
> happen all the time, and for that reason it might not be reproducible
> running under gdb..

I've put together the used git executable as well as 4 core dumps at 
http://opensource.sf-tec.de/git-crash.tar.bz2

It would be nice if you could take a look and tell me if this gives you 
anything.

Greetings,

Eike
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Random crashes when calling git
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On 31-Dec-12, at 6:03 AM, Rolf Eike Beer wrote:

> I've put together the used git executable as well as 4 core dumps at
> http://opensource.sf-tec.de/git-crash.tar.bz2
>
> It would be nice if you could take a look and tell me if this gives  
> you
> anything.

I looked at the first one:

(gdb) p/x $pc
$1 = 0x0
(gdb) info threads
   Id   Target Id         Frame
   2    LWP 28212         0x000e054c in receive_status (in=1077339896,
     refs=0x19e578) at send-pack.c:163
* 1    LWP 28214         0x00000000 in ?? ()
(gdb) info reg
flags          0x4000f	262159
r1             0x40fe7b40	1090419520
rp             0x0	0
r3             0x7	7
r4             0x4036e6f8	1077339896
r5             0x417e7480	1098806400
r6             0x0	0
r7             0x40fe8000	1090420736
r8             0xfb	251
r9             0x4036b624	1077327396
r10            0x403709a4	1077348772
r11            0x0	0
r12            0x402ffc60	1076886624
r13            0xfffff000	4294963200
r14            0x800000	8388608
r15            0x14fcb2	1375410
r16            0xfb03d9d4	4211333588
r17            0xfb03d9e4	4211333604
r18            0x40fe8000	1090420736
r19            0x0	0
r20            0x3	3
r21            0x54	84
r22            0x49	73
---Type <return> to continue, or q <return> to quit---
r23            0x0	0
r24            0xe	14
r25            0x136bb2	1272754
r26            0x0	0
dp             0x14b0fc	1356028
ret0           0x0	0
ret1           0x2	2
sp             0x40fe8280	1090421376
r31            0xfefefeff	4278124287
sar            0x1d	29
pcoqh          0x3	3
pcsqh          0x2e	46
pcoqt          0x7	7
pcsqt          0x2e	46
eiem           0xfe000000	4261412864
iir            0x43ffff80	1140850560
isr            0x2e	46
ior            0x417e7504	1098806532
ipsw           0x4fe0f	327183
goto           *value not available*
sr4            0x2e	46
sr0            0x2e	46
sr1            0x0	0
(gdb) p/x $sp
$3 = 0x40fe8280
(gdb) x/64x $sp-64
0x40fe8240:	0x00000000	0x00000000	0x00000000	0x00000000
0x40fe8250:	0x00000000	0x00000000	0x00000000	0x00000000
0x40fe8260:	0x00000000	0x00000000	0x00000000	0x00000000
0x40fe8270:	0x00000000	0x00000000	0x00000000	0x00000000
0x40fe8280:	0x00000000	0x00000000	0x00000000	0x00000000
0x40fe8290:	0x00007265	0x6d6f7465	0x3a013030	0x3065756e
0x40fe82a0:	0x7061636b	0x206f6b0a	0x30303139	0x6f6b2072
0x40fe82b0:	0x6566732f	0x68656164	0x732f6d61	0x73746572
0x40fe82c0:	0x0a303030	0x30000000	0x00000000	0x00000000
0x40fe82d0:	0x00000000	0x00000000	0x00000000	0x00000000
0x40fe82e0:	0x00000000	0x00000000	0x00000000	0x00000000
0x40fe82f0:	0x00000000	0x00000000	0x00000000	0x00000000
0x40fe8300:	0x00000000	0x00000000	0x00000000	0x00000000
0x40fe8310:	0x00000000	0x00000000	0x00000000	0x00000000
0x40fe8320:	0x00000000	0x00000000	0x00000000	0x00000000
0x40fe8330:	0x00000000	0x00000000	0x00000000	0x00000000

I think this is the infamous thread stack corruption bug.  There are
numerous discussions about it on the list.

It's just a guess but I believe my kernel patch may help.  Attaching  
latest
version for 3.7.1.

If the patch doesn't help, then I think we need to review the glibc
patch sets for debian and gentoo.  I have installed an unmodified
version of 2.13-37.

Happy New Year,
Dave
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John David Anglin	dave.anglin@bell.net


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diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 58c53c8..bdcea33 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -88,7 +88,7 @@ ENTRY(hpux_fork_wrapper)
 
 	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r2,PT_SYSCALL_RP(%r1)	;! save for child
 	STREG	%r30,PT_GR21(%r1)	;! save for child
 
 	LDREG	PT_GR30(%r1),%r25
@@ -132,7 +132,7 @@ ENTRY(hpux_child_return)
 	bl,n	schedule_tail, %r2
 #endif
 
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_SYSCALL_RP-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 ENDPROC(hpux_child_return)
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 9f21ab0..79f694f 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -115,7 +115,9 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 {
 	if (PageAnon(page)) {
 		flush_tlb_page(vma, vmaddr);
+		preempt_disable();
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
+		preempt_enable();
 	}
 }
 
diff --git a/arch/parisc/include/asm/compat_rt_sigframe.h b/arch/parisc/include/asm/compat_rt_sigframe.h
deleted file mode 100644
index b3f95a7..0000000
--- a/arch/parisc/include/asm/compat_rt_sigframe.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#include <linux/compat.h>
-#include <linux/compat_siginfo.h>
-#include <asm/compat_ucontext.h>
-
-#ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-#define _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-
-/* In a deft move of uber-hackery, we decide to carry the top half of all
- * 64-bit registers in a non-portable, non-ABI, hidden structure.
- * Userspace can read the hidden structure if it *wants* but is never
- * guaranteed to be in the same place. Infact the uc_sigmask from the 
- * ucontext_t structure may push the hidden register file downards
- */
-struct compat_regfile {
-	/* Upper half of all the 64-bit registers that were truncated
-	   on a copy to a 32-bit userspace */
-	compat_int_t rf_gr[32];
-	compat_int_t rf_iasq[2];
-	compat_int_t rf_iaoq[2];
-	compat_int_t rf_sar;
-};
-
-#define COMPAT_SIGRETURN_TRAMP 4
-#define COMPAT_SIGRESTARTBLOCK_TRAMP 5 
-#define COMPAT_TRAMP_SIZE (COMPAT_SIGRETURN_TRAMP + COMPAT_SIGRESTARTBLOCK_TRAMP)
-
-struct compat_rt_sigframe {
-	/* XXX: Must match trampoline size in arch/parisc/kernel/signal.c 
-	        Secondary to that it must protect the ERESTART_RESTARTBLOCK
-		trampoline we left on the stack (we were bad and didn't 
-		change sp so we could run really fast.) */
-	compat_uint_t tramp[COMPAT_TRAMP_SIZE];
-	compat_siginfo_t info;
-	struct compat_ucontext uc;
-	/* Hidden location of truncated registers, *must* be last. */
-	struct compat_regfile regs; 
-};
-
-/*
- * The 32-bit ABI wants at least 48 bytes for a function call frame:
- * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of
- * which Linux/parisc uses is sp-20 for the saved return pointer...)
- * Then, the stack pointer must be rounded to a cache line (64 bytes).
- */
-#define SIGFRAME32		64
-#define FUNCTIONCALLFRAME32	48
-#define PARISC_RT_SIGFRAME_SIZE32					\
-	(((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
-
-#endif
diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index e67eb9c..31835b9 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -1,9 +1,10 @@
 #ifndef _PARISC_MMZONE_H
 #define _PARISC_MMZONE_H
 
+#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
+
 #ifdef CONFIG_DISCONTIGMEM
 
-#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
 extern int npmem_ranges;
 
 struct node_map_data {
@@ -60,7 +61,5 @@ static inline int pfn_valid(int pfn)
 	return 0;
 }
 
-#else /* !CONFIG_DISCONTIGMEM */
-#define MAX_PHYSMEM_RANGES 	1 
 #endif
 #endif /* _PARISC_MMZONE_H */
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index 4e0e7db..d9812d8 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -21,15 +21,27 @@
 #include <asm/types.h>
 #include <asm/cache.h>
 
-#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define clear_page(page)	clear_page_asm((void *)(page))
+#define copy_page(to,from)	copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
+void clear_page_asm(void *page);
+void copy_page_asm(void *to, void *from);
+void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+
+// #define CONFIG_PARISC_TMPALIAS
+
+#ifdef CONFIG_PARISC_TMPALIAS
+void clear_user_highpage(struct page *page, unsigned long vaddr);
+#define clear_user_highpage clear_user_highpage
+struct vm_area_struct;
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma);
+#define __HAVE_ARCH_COPY_USER_HIGHPAGE
+#endif
 
 /*
  * These are used to make use of C type-checking..
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index ee99f23..563724d 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -12,11 +12,10 @@
 
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
+#include <linux/mm_types.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
-struct vm_area_struct;
-
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -40,7 +39,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm,addr,ptep, pteval)                        \
+        do{                                                     \
+                set_pte(ptep,pteval);                           \
+                purge_tlb_entries(mm,addr);                     \
+        } while(0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -462,10 +468,13 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #ifdef CONFIG_SMP
 	unsigned long new, old;
 
+	/* ??? This might be racy because the page table updates in
+	   entry.S don't use the same lock.  */
 	do {
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index dcd5510..5df1597 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -141,6 +141,7 @@ int main(void)
 	DEFINE(TASK_PT_IAOQ0, offsetof(struct task_struct, thread.regs.iaoq[0]));
 	DEFINE(TASK_PT_IAOQ1, offsetof(struct task_struct, thread.regs.iaoq[1]));
 	DEFINE(TASK_PT_CR27, offsetof(struct task_struct, thread.regs.cr27));
+	DEFINE(TASK_PT_SYSCALL_RP, offsetof(struct task_struct, thread.regs.pad0));
 	DEFINE(TASK_PT_ORIG_R28, offsetof(struct task_struct, thread.regs.orig_r28));
 	DEFINE(TASK_PT_KSP, offsetof(struct task_struct, thread.regs.ksp));
 	DEFINE(TASK_PT_KPC, offsetof(struct task_struct, thread.regs.kpc));
@@ -230,6 +231,7 @@ int main(void)
 	DEFINE(PT_IAOQ0, offsetof(struct pt_regs, iaoq[0]));
 	DEFINE(PT_IAOQ1, offsetof(struct pt_regs, iaoq[1]));
 	DEFINE(PT_CR27, offsetof(struct pt_regs, cr27));
+	DEFINE(PT_SYSCALL_RP, offsetof(struct pt_regs, pad0));
 	DEFINE(PT_ORIG_R28, offsetof(struct pt_regs, orig_r28));
 	DEFINE(PT_KSP, offsetof(struct pt_regs, ksp));
 	DEFINE(PT_KPC, offsetof(struct pt_regs, kpc));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 48e16dc..fb449c3 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -267,9 +267,11 @@ static inline void
 __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 		   unsigned long physaddr)
 {
+	preempt_disable();
 	flush_dcache_page_asm(physaddr, vmaddr);
 	if (vma->vm_flags & VM_EXEC)
 		flush_icache_page_asm(physaddr, vmaddr);
+	preempt_enable();
 }
 
 void flush_dcache_page(struct page *page)
@@ -314,7 +316,7 @@ void flush_dcache_page(struct page *page)
 		flush_tlb_page(mpnt, addr);
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
+			if (old_addr && parisc_requires_coherency())
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
 			old_addr = addr;
 		}
@@ -329,17 +331,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -373,20 +364,9 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
 
-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
-
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
-{
-	unsigned long flags;
-
-	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start(flags);
-	pdtlb_kernel(page);
-	purge_tlb_end(flags);
-	clear_user_page_asm(page, vaddr);
-}
-EXPORT_SYMBOL(clear_user_page);
+extern void purge_kernel_dcache_page_asm(unsigned long);
+extern void clear_user_page_asm(void *, unsigned long);
+extern void copy_user_page_asm(void *, void *, unsigned long);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
@@ -399,11 +379,26 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
+void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
+{
+	clear_page_asm(vto);
+	if (!parisc_requires_coherency())
+		flush_kernel_dcache_page_asm(vto);
+}
+EXPORT_SYMBOL(clear_user_page);
+
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-		    struct page *pg)
+	struct page *pg)
 {
-	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
+	/* Copy using kernel mapping.  No coherency is needed
+	   (all in kmap/kunmap) on machines that don't support
+	   non-equivalent aliasing.  However, the `from' page
+	   needs to be flushed before it can be accessed through
+	   the kernel mapping. */
+	preempt_disable();
+	flush_dcache_page_asm(__pa(vfrom), vaddr);
+	preempt_enable();
+	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
 		flush_kernel_dcache_page_asm(vto);
 }
@@ -419,6 +414,25 @@ void kunmap_parisc(void *addr)
 EXPORT_SYMBOL(kunmap_parisc);
 #endif
 
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags, sid;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	/* Disable preemption while we play with %sr1.  */
+	preempt_disable();
+	sid = mfsp(1);
+	mtsp(mm->context,1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+	mtsp(sid,1);
+	preempt_enable();
+}
+
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {
@@ -458,8 +472,65 @@ void flush_cache_all(void)
 	on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
 }
 
+static inline unsigned long mm_total_size(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long usize = 0;
+
+	for (vma = mm->mmap; vma; vma = vma->vm_next)
+		usize += vma->vm_end - vma->vm_start;
+	return usize;
+}
+
+static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
+{
+	pte_t *ptep = NULL;
+
+        if (!pgd_none(*pgd)) {
+                pud_t *pud = pud_offset(pgd, addr);
+                if (!pud_none(*pud)) {
+                        pmd_t *pmd = pmd_offset(pud, addr);
+                        if (!pmd_none(*pmd)) {
+                                ptep = pte_offset_map(pmd, addr);
+                        }
+                }
+        }
+	return ptep;
+}
+
 void flush_cache_mm(struct mm_struct *mm)
 {
+	/* Flushing the whole cache on each cpu takes forever on
+	   rp3440, etc.  So, avoid it if the mm isn't too big.
+	   Note: This approach is faster than a range flush when the
+	   context is current, and it works even when non current.  */
+	if (mm_total_size(mm) < parisc_cache_flush_threshold) {
+		struct vm_area_struct *vma;
+
+		if (mm->context == mfsp(3)) {
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				flush_user_dcache_range_asm(vma->vm_start, vma->vm_end);
+				if(vma->vm_flags & VM_EXEC)
+					flush_user_icache_range_asm(vma->vm_start, vma->vm_end);
+			}
+		} else {
+			pgd_t *pgd = mm->pgd;
+
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				unsigned long addr;
+
+				for (addr = vma->vm_start; addr < vma->vm_end; addr += PAGE_SIZE) {
+					pte_t *ptep = get_ptep(pgd, addr);
+					if (ptep != NULL) {
+						pte_t pte = *ptep;
+						__flush_cache_page(vma, addr, page_to_phys(pte_page(pte)));
+					}
+				}
+			}
+		}
+		return;
+	}
+
 #ifdef CONFIG_SMP
 	flush_cache_all();
 #else
@@ -485,20 +556,34 @@ flush_user_icache_range(unsigned long start, unsigned long end)
 		flush_instruction_cache();
 }
 
-
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	int sr3;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
+	if ((end - start) < parisc_cache_flush_threshold) {
+		if (vma->vm_mm->context == mfsp(3)) {
+			flush_user_dcache_range_asm(start,end);
+			if(vma->vm_flags & VM_EXEC)
+				flush_user_icache_range_asm(start,end);
+		} else {
+			unsigned long addr;
+			pgd_t *pgd = vma->vm_mm->pgd;
+
+			for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+				pte_t *ptep = get_ptep(pgd, addr);
+				if (ptep != NULL) {
+					pte_t pte = *ptep;
+					flush_cache_page(vma, addr, pte_pfn(pte));
+				}
+			}
+		}
 	} else {
+#ifdef CONFIG_SMP
 		flush_cache_all();
+#else
+		flush_cache_all_local();
+#endif
 	}
 }
 
@@ -511,3 +596,67 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
+
+#ifdef CONFIG_PARISC_TMPALIAS
+
+void clear_user_highpage(struct page *page, unsigned long vaddr)
+{
+	void *vto;
+	unsigned long flags;
+
+	/* Clear using TMPALIAS region.  The page doesn't need to
+	   be flushed but the kernel mapping needs to be purged.  */
+
+	vto = kmap_atomic(page, KM_USER0);
+
+	/* The PA-RISC 2.0 Architecture book states on page F-6:
+	   "Before a write-capable translation is enabled, *all*
+	   non-equivalently-aliased translations must be removed
+	   from the page table and purged from the TLB.  (Note
+	   that the caches are not required to be flushed at this
+	   time.)  Before any non-equivalent aliased translation
+	   is re-enabled, the virtual address range for the writeable
+	   page (the entire page) must be flushed from the cache,
+	   and the write-capable translation removed from the page
+	   table and purged from the TLB."  */
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	purge_tlb_end(flags);
+	preempt_disable();
+	clear_user_page_asm(vto, vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma)
+{
+	void *vfrom, *vto;
+	unsigned long flags;
+
+	/* Copy using TMPALIAS region.  This has the advantage
+	   that the `from' page doesn't need to be flushed.  However,
+	   the `to' page must be flushed in copy_user_page_asm since
+	   it can be used to bring in executable code.  */
+
+	vfrom = kmap_atomic(from, KM_USER0);
+	vto = kmap_atomic(to, KM_USER1);
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	pdtlb_kernel(vfrom);
+	purge_tlb_end(flags);
+	preempt_disable();
+	copy_user_page_asm(vto, vfrom, vaddr);
+	flush_dcache_page_asm(__pa(vto), vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER1); */
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+#endif /* CONFIG_PARISC_TMPALIAS */
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 18670a0..c19b2b0 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -483,7 +483,7 @@
 	 * B <-> _PAGE_DMB (memory break)
 	 *
 	 * Then incredible subtlety: The access rights are
-	 * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
+	 * _PAGE_GATEWAY, _PAGE_EXEC and _PAGE_WRITE
 	 * See 3-14 of the parisc 2.0 manual
 	 *
 	 * Finally, _PAGE_READ goes in the top bit of PL1 (so we
@@ -493,7 +493,7 @@
 
 	/* PAGE_USER indicates the page can be read with user privileges,
 	 * so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1
-	 * contains _PAGE_READ */
+	 * contains _PAGE_READ) */
 	extrd,u,*=      \pte,_PAGE_USER_BIT+32,1,%r0
 	depdi		7,11,3,\prot
 	/* If we're a gateway page, drop PL2 back to zero for promotion
@@ -1785,9 +1785,9 @@ ENTRY(sys_fork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* These are call-clobbered registers and therefore
-	   also syscall-clobbered (we hope). */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 
 	LDREG	PT_GR30(%r1),%r25
@@ -1817,7 +1817,7 @@ ENTRY(child_return)
 	nop
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30), %r1
-	LDREG	TASK_PT_GR19(%r1),%r2
+	LDREG	TASK_PT_SYSCALL_RP(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 ENDPROC(child_return)
@@ -1836,8 +1836,9 @@ ENTRY(sys_clone_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	/* WARNING - Clobbers r19 and r21, userspace must save these! */
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
+
+	/* WARNING - Clobbers r21, userspace must save! */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2
 	copy	%r1,%r24
@@ -1860,7 +1861,7 @@ ENTRY(sys_vfork_wrapper)
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
-	STREG	%r2,PT_GR19(%r1)	/* save for child */
+	STREG	%r2,PT_SYSCALL_RP(%r1)	/* save for child */
 	STREG	%r30,PT_GR21(%r1)
 
 	BL	sys_vfork,%r2
@@ -1893,15 +1894,7 @@ ENDPROC(sys_vfork_wrapper)
 
 	ldo -FRAME_SIZE(%r30),%r30
 	LDREG -RP_OFFSET(%r30),%r2
-
-	/* If exec succeeded we need to load the args */
-
-	ldo -1024(%r0),%r1
-	cmpb,>>= %r28,%r1,error_\execve
-	copy %r2,%r19
-
-error_\execve:
-	bv %r0(%r19)
+	bv,n %r0(%r2)
 	nop
 	.endm
 
@@ -2064,7 +2057,7 @@ syscall_restore:
 
 	/* Are we being ptraced? */
 	ldw	TASK_FLAGS(%r1),%r19
-	ldi	(_TIF_SINGLESTEP|_TIF_BLOCKSTEP),%r2
+	ldi	_TIF_SYSCALL_TRACE_MASK,%r2
 	and,COND(=)	%r19,%r2,%r0
 	b,n	syscall_restore_rfi
 
@@ -2177,15 +2170,23 @@ syscall_restore_rfi:
 	/* sr2 should be set to zero for userspace syscalls */
 	STREG	%r0,TASK_PT_SR2(%r1)
 
-pt_regs_ok:
 	LDREG	TASK_PT_GR31(%r1),%r2
-	depi	3,31,2,%r2			   /* ensure return to user mode. */
-	STREG	%r2,TASK_PT_IAOQ0(%r1)
+	depi	3,31,2,%r2		   /* ensure return to user mode. */
+	STREG   %r2,TASK_PT_IAOQ0(%r1)
 	ldo	4(%r2),%r2
 	STREG	%r2,TASK_PT_IAOQ1(%r1)
+	b	intr_restore
 	copy	%r25,%r16
+
+pt_regs_ok:
+	LDREG	TASK_PT_IAOQ0(%r1),%r2
+	depi	3,31,2,%r2		   /* ensure return to user mode. */
+	STREG	%r2,TASK_PT_IAOQ0(%r1)
+	LDREG	TASK_PT_IAOQ1(%r1),%r2
+	depi	3,31,2,%r2
+	STREG	%r2,TASK_PT_IAOQ1(%r1)
 	b	intr_restore
-	nop
+	copy	%r25,%r16
 
 	.import schedule,code
 syscall_do_resched:
diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index 08324aa..3295ef4 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -186,12 +186,14 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 
 	if (status != PDC_OK) {
 		/* no more cell modules or error */
+		kfree(pa_pdc_cell);
 		return status;
 	}
 
 	temp = pa_pdc_cell->cba;
 	dev = alloc_pa_dev(PAT_GET_CBA(temp), &(pa_pdc_cell->mod_path));
 	if (!dev) {
+		kfree(pa_pdc_cell);
 		return PDC_OK;
 	}
 
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1aff..8094d3e 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
-	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+	.flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
-	.flags = IRQF_DISABLED | IRQF_PERCPU,
+	.flags = IRQF_PERCPU,
 };
 #endif
 
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
 {
 	local_irq_disable();	/* PARANOID - should already be disabled */
 	mtctl(~0UL, 23);	/* EIRR : clear all pending external intr */
-	claim_cpu_irqs();
 #ifdef CONFIG_SMP
-	if (!cpu_eiem)
+	if (!cpu_eiem) {
+		claim_cpu_irqs();
 		cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+	}
 #else
+	claim_cpu_irqs();
 	cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 5d7218a..ed401dd 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -199,7 +199,6 @@ ENTRY(flush_instruction_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
 	load32		cache_info, %r1
 
 	/* Flush Instruction Cache */
@@ -208,20 +207,46 @@ ENTRY(flush_instruction_cache_local)
 	LDREG		ICACHE_STRIDE(%r1), %arg1
 	LDREG		ICACHE_COUNT(%r1), %arg2
 	LDREG		ICACHE_LOOP(%r1), %arg3
-	rsm             PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fioneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fisync	/* If loop < 0, do sync */
 
 fimanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fimanyloop	/* Adjusted inner loop decr */
-	fice            %r0(%sr1, %arg0)
-	fice,m		%arg1(%sr1, %arg0)	/* Last fice and addr adjust */
+	fice            %r0(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)	/* Last fice and addr adjust */
 	movb,tr		%arg3, %r31, fimanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fisync	/* Outer loop decr */
 
 fioneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fioneloop	/* Outer loop count decr */
-	fice,m		%arg1(%sr1, %arg0)	/* Fice for one loop */
+	/* Some implementations may flush with a single fice instruction */
+	cmpib,COND(>>=),n	15, %arg2, fioneloop2
+
+fioneloop1:
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	fice,m		%arg1(%sr4, %arg0)
+	addib,COND(>)	-16, %arg2, fioneloop1
+	fice,m		%arg1(%sr4, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fisync	/* Predict branch taken */
+
+fioneloop2:
+	addib,COND(>)	-1, %arg2, fioneloop2	/* Outer loop count decr */
+	fice,m		%arg1(%sr4, %arg0)	/* Fice for one loop */
 
 fisync:
 	sync
@@ -240,8 +265,7 @@ ENTRY(flush_data_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
-	load32 		cache_info, %r1
+	load32		cache_info, %r1
 
 	/* Flush Data Cache */
 
@@ -249,20 +273,46 @@ ENTRY(flush_data_cache_local)
 	LDREG		DCACHE_STRIDE(%r1), %arg1
 	LDREG		DCACHE_COUNT(%r1), %arg2
 	LDREG		DCACHE_LOOP(%r1), %arg3
-	rsm		PSW_SM_I, %r22
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
 	addib,COND(=)		-1, %arg3, fdoneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fdsync	/* If loop < 0, do sync */
 
 fdmanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fdmanyloop	/* Adjusted inner loop decr */
-	fdce		%r0(%sr1, %arg0)
-	fdce,m		%arg1(%sr1, %arg0)	/* Last fdce and addr adjust */
+	fdce		%r0(%arg0)
+	fdce,m		%arg1(%arg0)	/* Last fdce and addr adjust */
 	movb,tr		%arg3, %r31, fdmanyloop	/* Re-init inner loop count */
 	addib,COND(<=),n	-1, %arg2, fdsync	/* Outer loop decr */
 
 fdoneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fdoneloop	/* Outer loop count decr */
-	fdce,m		%arg1(%sr1, %arg0)	/* Fdce for one loop */
+	/* Some implementations may flush with a single fdce instruction */
+	cmpib,COND(>>=),n	15, %arg2, fdoneloop2
+
+fdoneloop1:
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	fdce,m		%arg1(%arg0)
+	addib,COND(>)	-16, %arg2, fdoneloop1
+	fdce,m		%arg1(%arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fdsync	/* Predict branch taken */
+
+fdoneloop2:
+	addib,COND(>)	-1, %arg2, fdoneloop2	/* Outer loop count decr */
+	fdce,m		%arg1(%arg0)	/* Fdce for one loop */
 
 fdsync:
 	syncdma
@@ -277,7 +327,104 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+/* Macros to serialize TLB purge operations on SMP.  */
+
+	.macro	tlb_lock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock,%r1
+	ldo		R%pa_tlb_lock(%r1),\la
+	rsm		PSW_SM_I,\flags
+1:	LDCW		0(\la),\tmp
+	cmpib,<>,n	0,\tmp,3f
+2:	ldw		0(\la),\tmp
+	cmpb,<>		%r0,\tmp,1b
+	nop
+	b,n		2b
+3:
+#endif
+	.endm
+
+	.macro	tlb_unlock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldi		1,\tmp
+	stw		\tmp,0(\la)
+	mtsm		\flags
+#endif
+	.endm
+
+/* Clear page using kernel mapping.  */
+
+ENTRY(clear_page_asm)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+#ifdef CONFIG_64BIT
+
+	/* Unroll the loop.  */
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:
+	std		%r0, 0(%r26)
+	std		%r0, 8(%r26)
+	std		%r0, 16(%r26)
+	std		%r0, 24(%r26)
+	std		%r0, 32(%r26)
+	std		%r0, 40(%r26)
+	std		%r0, 48(%r26)
+	std		%r0, 56(%r26)
+	std		%r0, 64(%r26)
+	std		%r0, 72(%r26)
+	std		%r0, 80(%r26)
+	std		%r0, 88(%r26)
+	std		%r0, 96(%r26)
+	std		%r0, 104(%r26)
+	std		%r0, 112(%r26)
+	std		%r0, 120(%r26)
+
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
+
+#else
+
+	/*
+	 * Note that until (if) we start saving the full 64-bit register
+	 * values on interrupt, we can't use std on a 32 bit kernel.
+	 */
+	ldi		(PAGE_SIZE / 64), %r1
+
+1:
+	stw		%r0, 0(%r26)
+	stw		%r0, 4(%r26)
+	stw		%r0, 8(%r26)
+	stw		%r0, 12(%r26)
+	stw		%r0, 16(%r26)
+	stw		%r0, 20(%r26)
+	stw		%r0, 24(%r26)
+	stw		%r0, 28(%r26)
+	stw		%r0, 32(%r26)
+	stw		%r0, 36(%r26)
+	stw		%r0, 40(%r26)
+	stw		%r0, 44(%r26)
+	stw		%r0, 48(%r26)
+	stw		%r0, 52(%r26)
+	stw		%r0, 56(%r26)
+	stw		%r0, 60(%r26)
+
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		64(%r26), %r26
+#endif
+	bv		%r0(%r2)
+	nop
+	.exit
+
+	.procend
+ENDPROC(clear_page_asm)
+
+/* Copy page using kernel mapping.  */
+
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -285,18 +432,14 @@ ENTRY(copy_user_page_asm)
 #ifdef CONFIG_64BIT
 	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
 	 * Unroll the loop by hand and arrange insn appropriately.
-	 * GCC probably can do this just as well.
+	 * Prefetch doesn't improve performance on rp3440.
+	 * GCC probably can do this just as well...
 	 */
 
-	ldd		0(%r25), %r19
 	ldi		(PAGE_SIZE / 128), %r1
 
-	ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
-	ldw		128(%r25), %r0		/* prefetch 2 */
-
-1:	ldd		8(%r25), %r20
-	ldw		192(%r25), %r0		/* prefetch 3 */
-	ldw		256(%r25), %r0		/* prefetch 4 */
+1:	ldd		0(%r25), %r19
+	ldd		8(%r25), %r20
 
 	ldd		16(%r25), %r21
 	ldd		24(%r25), %r22
@@ -330,20 +473,16 @@ ENTRY(copy_user_page_asm)
 
 	ldd		112(%r25), %r21
 	ldd		120(%r25), %r22
+	ldo		128(%r25), %r25
 	std		%r19, 96(%r26)
 	std		%r20, 104(%r26)
 
-	ldo		128(%r25), %r25
 	std		%r21, 112(%r26)
 	std		%r22, 120(%r26)
-	ldo		128(%r26), %r26
 
-	/* conditional branches nullify on forward taken branch, and on
-	 * non-taken backward branch. Note that .+4 is a backwards branch.
-	 * The ldd should only get executed if the branch is taken.
-	 */
-	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
-	ldd		0(%r25), %r19		/* start next loads */
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
 
 #else
 
@@ -399,7 +538,7 @@ ENTRY(copy_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,8 +561,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
-
 	/*
 	 * We can't do this since copy_user_page is used to bring in
 	 * file data that might have instructions. Since the data would
@@ -435,6 +572,7 @@ ENDPROC(copy_user_page_asm)
 	 * use it if more information is passed into copy_user_page().
 	 * Have to do some measurements to see if it is worthwhile to
 	 * lobby for such a change.
+	 *
 	 */
 
 ENTRY(copy_user_page_asm)
@@ -442,16 +580,21 @@ ENTRY(copy_user_page_asm)
 	.callinfo NO_CALLS
 	.entry
 
+	/* Convert virtual `to' and `from' addresses to physical addresses.
+	   Move `from' physical address to non shadowed register.  */
 	ldil		L%(__PAGE_OFFSET), %r1
 	sub		%r26, %r1, %r26
-	sub		%r25, %r1, %r23		/* move physical addr into non shadowed reg */
+	sub		%r25, %r1, %r23
 
 	ldil		L%(TMPALIAS_MAP_START), %r28
 	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
-	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+#endif
+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
+	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
@@ -466,10 +609,76 @@ ENTRY(copy_user_page_asm)
 
 	/* Purge any old translations */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+	pdtlb,l		0(%r29)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
-	ldi		64, %r1
+#ifdef CONFIG_64BIT
+	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
+	 * Unroll the loop by hand and arrange insn appropriately.
+	 * GCC probably can do this just as well.
+	 */
+
+	ldd		0(%r29), %r19
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:	ldd		8(%r29), %r20
+
+	ldd		16(%r29), %r21
+	ldd		24(%r29), %r22
+	std		%r19, 0(%r28)
+	std		%r20, 8(%r28)
+
+	ldd		32(%r29), %r19
+	ldd		40(%r29), %r20
+	std		%r21, 16(%r28)
+	std		%r22, 24(%r28)
+
+	ldd		48(%r29), %r21
+	ldd		56(%r29), %r22
+	std		%r19, 32(%r28)
+	std		%r20, 40(%r28)
+
+	ldd		64(%r29), %r19
+	ldd		72(%r29), %r20
+	std		%r21, 48(%r28)
+	std		%r22, 56(%r28)
+
+	ldd		80(%r29), %r21
+	ldd		88(%r29), %r22
+	std		%r19, 64(%r28)
+	std		%r20, 72(%r28)
+
+	ldd		 96(%r29), %r19
+	ldd		104(%r29), %r20
+	std		%r21, 80(%r28)
+	std		%r22, 88(%r28)
+
+	ldd		112(%r29), %r21
+	ldd		120(%r29), %r22
+	std		%r19, 96(%r28)
+	std		%r20, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r21, 112(%r28)
+	std		%r22, 120(%r28)
+	ldo		128(%r28), %r28
+
+	/* conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 * The ldd should only get executed if the branch is taken.
+	 */
+	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
+	ldd		0(%r29), %r19		/* start next loads */
+
+#else
+	ldi		(PAGE_SIZE / 64), %r1
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,9 +689,7 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
+1:	ldw		0(%r29), %r19
 	ldw		4(%r29), %r20
 	ldw		8(%r29), %r21
 	ldw		12(%r29), %r22
@@ -515,8 +722,10 @@ ENTRY(copy_user_page_asm)
 	stw		%r21, 56(%r28)
 	stw		%r22, 60(%r28)
 	ldo		64(%r28), %r28
+
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
+#endif
 
 	bv		%r0(%r2)
 	nop
@@ -524,9 +733,8 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -550,7 +758,13 @@ ENTRY(__clear_user_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
@@ -580,8 +794,7 @@ ENTRY(__clear_user_page_asm)
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
-	stw		%r0, 0(%r28)
+1:	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
 	stw		%r0, 12(%r28)
@@ -606,7 +819,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_dcache_page_asm)
 	.proc
@@ -630,7 +843,13 @@ ENTRY(flush_dcache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), %r1
@@ -663,8 +882,17 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		%r1(%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pdtlb		(%r25)
+	nop
 	.exit
 
 	.procend
@@ -692,7 +920,13 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
-	pitlb		(%sr4,%r28)
+#ifdef CONFIG_PA20
+	pitlb,l         %r0(%sr4,%r28)
+#else
+	tlb_lock        %r20,%r21,%r22
+	pitlb           (%sr4,%r28)
+	tlb_unlock      %r20,%r21,%r22
+#endif
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -727,8 +961,17 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r1(%sr4,%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pitlb,l         %r0(%sr4,%r25)
+#else
+	tlb_lock        %r20,%r21,%r22
+	pitlb           (%sr4,%r25)
+	tlb_unlock      %r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pitlb		(%sr4,%r25)
+	nop
 	.exit
 
 	.procend
@@ -777,7 +1020,7 @@ ENTRY(flush_kernel_dcache_page_asm)
 	.procend
 ENDPROC(flush_kernel_dcache_page_asm)
 
-ENTRY(purge_kernel_dcache_page)
+ENTRY(purge_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -817,7 +1060,7 @@ ENTRY(purge_kernel_dcache_page)
 	.exit
 
 	.procend
-ENDPROC(purge_kernel_dcache_page)
+ENDPROC(purge_kernel_dcache_page_asm)
 
 ENTRY(flush_user_dcache_range_asm)
 	.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index ceec85d..6795dc6 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -157,5 +157,6 @@ extern void _mcount(void);
 EXPORT_SYMBOL(_mcount);
 #endif
 
-/* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+/* from pacache.S -- needed for clear/copy_page */
+EXPORT_SYMBOL(clear_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 857c2f5..534abd4 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -26,7 +26,7 @@
 #include <asm/asm-offsets.h>
 
 /* PSW bits we allow the debugger to modify */
-#define USER_PSW_BITS	(PSW_N | PSW_V | PSW_CB)
+#define USER_PSW_BITS	(PSW_N | PSW_B | PSW_V | PSW_CB)
 
 /*
  * Called by kernel/ptrace.c when detaching..
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 5379969..52c85b2 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -190,8 +190,10 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
 	DBG(1,"get_sigframe: ka = %#lx, sp = %#lx, frame_size = %#lx\n",
 			(unsigned long)ka, sp, frame_size);
 	
+	/* Align alternate stack and reserve 64 bytes for the signal
+	   handler's frame marker.  */
 	if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp))
-		sp = current->sas_ss_sp; /* Stacks grow up! */
+		sp = (current->sas_ss_sp + 0x7f) & ~0x3f; /* Stacks grow up! */
 
 	DBG(1,"get_sigframe: Returning sp = %#lx\n", (unsigned long)sp);
 	return (void __user *) sp; /* Stacks grow up.  Fun. */
@@ -310,7 +312,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #if DEBUG_SIG
 	/* Assert that we're flushing in the correct space... */
 	{
-		int sid;
+		unsigned long sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
 		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
 		       sid, frame->tramp);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index f76c108..a047b32 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -94,11 +94,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 86742df..c893ec4 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -309,10 +309,13 @@ tracesys_next:
 	LDREG   TASK_PT_GR25(%r1), %r25
 	LDREG   TASK_PT_GR24(%r1), %r24
 	LDREG   TASK_PT_GR23(%r1), %r23
-#ifdef CONFIG_64BIT
 	LDREG   TASK_PT_GR22(%r1), %r22
 	LDREG   TASK_PT_GR21(%r1), %r21
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
+#else
+	stw	%r22, -52(%r30)			/* 5th argument */
+	stw	%r21, -56(%r30)			/* 6th argument */
 #endif
 
 	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 70e105d..4a24ba7 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -77,7 +77,7 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 6) < cpt) {
+	if ((cycles_elapsed >> 7) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
diff --git a/arch/parisc/math-emu/cnv_float.h b/arch/parisc/math-emu/cnv_float.h
index 9071e09..37299c7 100644
--- a/arch/parisc/math-emu/cnv_float.h
+++ b/arch/parisc/math-emu/cnv_float.h
@@ -347,16 +347,15 @@
     Sgl_isinexact_to_fix(sgl_value,exponent)
 
 #define Duint_from_sgl_mantissa(sgl_value,exponent,dresultA,dresultB)	\
-  {Sall(sgl_value) <<= SGL_EXP_LENGTH;  /*  left-justify  */		\
+  {unsigned int val = Sall(sgl_value) << SGL_EXP_LENGTH;		\
     if (exponent <= 31) {						\
     	Dintp1(dresultA) = 0;						\
-    	Dintp2(dresultB) = (unsigned)Sall(sgl_value) >> (31 - exponent); \
+    	Dintp2(dresultB) = val >> (31 - exponent);			\
     }									\
     else {								\
-    	Dintp1(dresultA) = Sall(sgl_value) >> (63 - exponent);		\
-    	Dintp2(dresultB) = Sall(sgl_value) << (exponent - 31);		\
+    	Dintp1(dresultA) = val >> (63 - exponent);			\
+    	Dintp2(dresultB) = exponent <= 62 ? val << (exponent - 31) : 0;	\
     }									\
-    Sall(sgl_value) >>= SGL_EXP_LENGTH;  /* return to original */	\
   }
 
 #define Duint_setzero(dresultA,dresultB) 	\
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 18162ce..524bf5a 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -175,10 +175,12 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	struct mm_struct *mm = tsk->mm;
 	unsigned long acc_type;
 	int fault;
+	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	if (in_atomic() || !mm)
 		goto no_context;
 
+retry:
 	down_read(&mm->mmap_sem);
 	vma = find_vma_prev(mm, address, &prev_vma);
 	if (!vma || address < vma->vm_start)
@@ -201,7 +203,12 @@ good_area:
 	 * fault.
 	 */
 
-	fault = handle_mm_fault(mm, vma, address, (acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0);
+	fault = handle_mm_fault(mm, vma, address,
+		flags | ((acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0));
+
+	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+		return;
+
 	if (unlikely(fault & VM_FAULT_ERROR)) {
 		/*
 		 * We hit a shared mapping outside of the file, or some
@@ -214,10 +221,22 @@ good_area:
 			goto bad_area;
 		BUG();
 	}
-	if (fault & VM_FAULT_MAJOR)
-		current->maj_flt++;
-	else
-		current->min_flt++;
+	if (flags & FAULT_FLAG_ALLOW_RETRY) {
+		if (fault & VM_FAULT_MAJOR)
+			current->maj_flt++;
+		else
+			current->min_flt++;
+		if (fault & VM_FAULT_RETRY) {
+			flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+			/* No need to up_read(&mm->mmap_sem) as we would
+			 * have already released it in __lock_page_or_retry
+			 * in mm/filemap.c.
+			 */
+
+			goto retry;
+		}
+	}
 	up_read(&mm->mmap_sem);
 	return;
 
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 57d86d0..f1b49d3 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -581,6 +581,7 @@ out_eoi:
 void
 handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 {
+	struct irqaction *action;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	kstat_incr_irqs_this_cpu(irq, desc);
@@ -588,7 +589,9 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 	if (chip->irq_ack)
 		chip->irq_ack(&desc->irq_data);
 
-	handle_irq_event_percpu(desc, desc->action);
+	action = desc->action;
+	if (action)
+		handle_irq_event_percpu(desc, action);
 
 	if (chip->irq_eoi)
 		chip->irq_eoi(&desc->irq_data);
diff --git a/kernel/softirq.c b/kernel/softirq.c
index cc96bdc..6d68000 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -259,7 +259,7 @@ restart:
 		}
 		h++;
 		pending >>= 1;
-	} while (pending);
+	} while (pending && h >= (struct softirq_action *)0x1000);
 
 	local_irq_disable();
 

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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: Random crashes when calling git
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You wrote:
> On 31-Dec-12, at 6:03 AM, Rolf Eike Beer wrote:
> > I've put together the used git executable as well as 4 core dumps at
> > http://opensource.sf-tec.de/git-crash.tar.bz2
> > 
> > It would be nice if you could take a look and tell me if this gives
> > you
> > anything.
> 
> I looked at the first one:

> I think this is the infamous thread stack corruption bug.  There are
> numerous discussions about it on the list.
> 
> It's just a guess but I believe my kernel patch may help.  Attaching
> latest
> version for 3.7.1.

Thx, I'll have a look when I'm back in the office next week.

Until next year,

Eike
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From - Thu Nov 08 21:08:47 2018
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From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [RESEND PATCH] Convert PARISC sysctl to be generic
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Hi,

This came out ARC Port's review by Arnd where he suggested using the existing
sysctl knobs in parisc and/or ia64 for runtime controlling unaligned access
emulation.

Turns out that ARC port needs bit of both.

The common sysctl knobs are now #ifdef based on init/Kconfig options which
the corresponding arches now select in their Kconfigs.
No other arch code is touched (although code has not been compile tested).

If this patch is ACKable, I would request you to please take this patch
via your arch tree - to avoid any merge-hassles and other interdependencies
later.

P.S. I've deliberately NOT added the new items at the end of arch/*/Kconfig,
to avoid any merge conflicts going further - anyhow both the ia64/parisc
Kconfigs are not sorted either.

Thx,
-Vineet


Vineet Gupta (1):
  sysctl: Enable PARISC "unaligned-trap" to be used cross-arch

 arch/parisc/Kconfig |    1 +
 init/Kconfig        |    8 ++++++++
 kernel/sysctl.c     |    7 ++++++-
 3 files changed, 15 insertions(+), 1 deletions(-)

-- 
1.7.4.1


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From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
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Subject: [RESEND PATCH] sysctl: Enable PARISC "unaligned-trap" to be used cross-arch
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PARISC defines /proc/sys/kernel/unaligned-trap to runtime toggle
unaligned access emulation.

The exact mechanics of enablig/disabling are still arch specific, we can
make the sysctl usable by other arches.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Serge Hallyn <serge.hallyn@canonical.com>
---
 arch/parisc/Kconfig |    1 +
 init/Kconfig        |    8 ++++++++
 kernel/sysctl.c     |    7 ++++++-
 3 files changed, 15 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index b77feff..8c76095 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -20,6 +20,7 @@ config PARISC
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_STRNCPY_FROM_USER
+	select SYSCTL_ARCH_UNALIGN_ALLOW
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_RELA
 	select CLONE_BACKWARDS
diff --git a/init/Kconfig b/init/Kconfig
index e188f9f..e64bb18 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1240,6 +1240,14 @@ config SYSCTL_ARCH_UNALIGN_NO_WARN
 	  unaligned access emulation going on under the hood.
 	  see arch/ia64/kernel/unaligned.c for reference
 
+config SYSCTL_ARCH_UNALIGN_ALLOW
+	bool
+	help
+	  Enable support for /proc/sys/kernel/unaligned-trap
+	  Allows arches to define/use @unaligned_enabled to runtime toggle
+	  the unaligned access emulation.
+	  see arch/parisc/kernel/unaligned.c for reference
+
 config KALLSYMS
 	 bool "Load all symbols for debugging/ksymoops" if EXPERT
 	 default y
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 840fd5e..c4cd655 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -157,13 +157,16 @@ extern int sysctl_tsb_ratio;
 
 #ifdef __hppa__
 extern int pwrsw_enabled;
-extern int unaligned_enabled;
 #endif
 
 #ifdef CONFIG_IA64
 extern int unaligned_dump_stack;
 #endif
 
+#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW
+extern int unaligned_enabled;
+#endif
+
 #ifdef CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN
 extern int no_unaligned_warning;
 #endif
@@ -548,6 +551,8 @@ static struct ctl_table kern_table[] = {
 	 	.mode		= 0644,
 		.proc_handler	= proc_dointvec,
 	},
+#endif
+#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW
 	{
 		.procname	= "unaligned-trap",
 		.data		= &unaligned_enabled,
-- 
1.7.4.1


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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: Random crashes when calling git
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John David Anglin wrote:
> On 31-Dec-12, at 6:03 AM, Rolf Eike Beer wrote:
>
>> I've put together the used git executable as well as 4 core dumps at
>> http://opensource.sf-tec.de/git-crash.tar.bz2
>>
>> It would be nice if you could take a look and tell me if this gives  
>> you
>> anything.

> I think this is the infamous thread stack corruption bug.  There are
> numerous discussions about it on the list.
>
> It's just a guess but I believe my kernel patch may help.  Attaching  
> latest
> version for 3.7.1.
>
> If the patch doesn't help, then I think we need to review the glibc
> patch sets for debian and gentoo.  I have installed an unmodified
> version of 2.13-37.

I have now applied this patch and while at it added another 1GB of RAM, 
but I don't think the latter will make any difference.

I was now able to run the CMake git test for more than a dozen times in 
a row without a single failure and also the git testsuite is now in the 
range of the 6000 with it's tests, which is far beyond anything it was 
able to reach until now. So I think that your patch indeed makes things 
better.

Time to split it up and submit it upstream ;)

Eike
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From - Thu Nov 08 21:08:47 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Random crashes when calling git
Date: Tue, 08 Jan 2013 09:54:06 -0500
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 1/8/2013 9:30 AM, Rolf Eike Beer wrote:
> I was now able to run the CMake git test for more than a dozen times 
> in a row without a single failure and also the git testsuite is now in 
> the range of the 6000 with it's tests, which is far beyond anything it 
> was able to reach until now. So I think that your patch indeed makes 
> things better.
I have have built git several times and run the full testsuite successfully.
>
> Time to split it up and submit it upstream ;)
>
Helge has recently setup a new parisc-linux git tree on kernel.org and 
is going to help with
pushing patches upstream.  So, there is hope :-)

Dave

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John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:08:47 2018
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From: Michel Lespinasse <walken@google.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha
Subject: [PATCH 0/8] vm_unmapped_area: finish the mission
Date: Tue,  8 Jan 2013 17:28:07 -0800
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Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	linuxppc-dev@lists.ozlabs.org, linux-parisc@vger.kernel.org,
	linux-alpha@vger.kernel.org, linux-ia64@vger.kernel.org
To: Rik van Riel <riel@redhat.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Matt Turner <mattst88@gmail.com>,
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Xref: news.gmane.org gmane.linux.ports.ia64:22855 gmane.linux.kernel.mm:93011 gmane.linux.kernel:1418765 gmane.linux.ports.ppc64.devel:86879 gmane.linux.ports.parisc:4706 gmane.linux.ports.alpha:1979
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/22855>

These patches, which apply on top of v3.8-rc kernels, are to complete the
VMA gap finding code I introduced (following Rik's initial proposal) in
v3.8-rc1.

First 5 patches introduce the use of vm_unmapped_area() to replace brute
force searches on parisc, alpha, frv and ia64 architectures (all relatively
trivial uses of the vm_unmapped_area() infrastructure)

Next 2 patches do the same as above for the powerpc architecture. This
change is not as trivial as for the other architectures, because we
need to account for each address space slice potentially having a
different page size.

The last patch removes the free_area_cache, which was used by all the
brute force searches before they got converted to the
vm_unmapped_area() infrastructure.

I did some basic testing on x86 and powerpc; however the first 5 (simpler)
patches for parisc, alpha, frv and ia64 architectures are untested.

Michel Lespinasse (8):
  mm: use vm_unmapped_area() on parisc architecture
  mm: use vm_unmapped_area() on alpha architecture
  mm: use vm_unmapped_area() on frv architecture
  mm: use vm_unmapped_area() on ia64 architecture
  mm: use vm_unmapped_area() in hugetlbfs on ia64 architecture
  mm: remove free_area_cache use in powerpc architecture
  mm: use vm_unmapped_area() on powerpc architecture
  mm: remove free_area_cache

 arch/alpha/kernel/osf_sys.c              |   20 ++--
 arch/arm/mm/mmap.c                       |    2 -
 arch/arm64/mm/mmap.c                     |    2 -
 arch/frv/mm/elf-fdpic.c                  |   49 +++----
 arch/ia64/kernel/sys_ia64.c              |   37 ++----
 arch/ia64/mm/hugetlbpage.c               |   20 ++--
 arch/mips/mm/mmap.c                      |    2 -
 arch/parisc/kernel/sys_parisc.c          |   46 +++----
 arch/powerpc/include/asm/page_64.h       |    3 +-
 arch/powerpc/mm/hugetlbpage.c            |    2 +-
 arch/powerpc/mm/mmap_64.c                |    2 -
 arch/powerpc/mm/slice.c                  |  228 +++++++++++++-----------------
 arch/powerpc/platforms/cell/spufs/file.c |    2 +-
 arch/s390/mm/mmap.c                      |    4 -
 arch/sparc/kernel/sys_sparc_64.c         |    2 -
 arch/tile/mm/mmap.c                      |    2 -
 arch/x86/ia32/ia32_aout.c                |    2 -
 arch/x86/mm/mmap.c                       |    2 -
 fs/binfmt_aout.c                         |    2 -
 fs/binfmt_elf.c                          |    2 -
 include/linux/mm_types.h                 |    3 -
 include/linux/sched.h                    |    2 -
 kernel/fork.c                            |    4 -
 mm/mmap.c                                |   28 ----
 mm/nommu.c                               |    4 -
 mm/util.c                                |    1 -
 26 files changed, 163 insertions(+), 310 deletions(-)

-- 
1.7.7.3
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From - Thu Nov 08 21:08:48 2018
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From: Michel Lespinasse <walken@google.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha
Subject: [PATCH 1/8] mm: use vm_unmapped_area() on parisc architecture
Date: Tue,  8 Jan 2013 17:28:08 -0800
Lines: 87
Approved: news@gmane.org
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Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	linuxppc-dev@lists.ozlabs.org, linux-parisc@vger.kernel.org,
	linux-alpha@vger.kernel.org, linux-ia64@vger.kernel.org
To: Rik van Riel <riel@redhat.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Matt Turner <mattst88@gmail.com>,
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	Tony Luck <tony.luck@intel.com>
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Xref: news.gmane.org gmane.linux.ports.ia64:22856 gmane.linux.kernel.mm:93012 gmane.linux.kernel:1418766 gmane.linux.ports.ppc64.devel:86880 gmane.linux.ports.parisc:4707 gmane.linux.ports.alpha:1980
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Update the parisc arch_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.

Signed-off-by: Michel Lespinasse <walken@google.com>

---
 arch/parisc/kernel/sys_parisc.c |   46 ++++++++++++++------------------------
 1 files changed, 17 insertions(+), 29 deletions(-)

diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index f76c10863c62..6ab138088076 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -35,18 +35,15 @@
 
 static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
 {
-	struct vm_area_struct *vma;
+	struct vm_unmapped_area_info info;
 
-	addr = PAGE_ALIGN(addr);
-
-	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
-		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (TASK_SIZE - len < addr)
-			return -ENOMEM;
-		if (!vma || addr + len <= vma->vm_start)
-			return addr;
-		addr = vma->vm_end;
-	}
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = PAGE_ALIGN(addr);
+	info.high_limit = TASK_SIZE;
+	info.align_mask = 0;
+	info.align_offset = 0;
+	return vm_unmapped_area(&info);
 }
 
 #define DCACHE_ALIGN(addr) (((addr) + (SHMLBA - 1)) &~ (SHMLBA - 1))
@@ -63,30 +60,21 @@ static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
  */
 static int get_offset(struct address_space *mapping)
 {
-	int offset = (unsigned long) mapping << (PAGE_SHIFT - 8);
-	return offset & 0x3FF000;
+	return (unsigned long) mapping >> 8;
 }
 
 static unsigned long get_shared_area(struct address_space *mapping,
 		unsigned long addr, unsigned long len, unsigned long pgoff)
 {
-	struct vm_area_struct *vma;
-	int offset = mapping ? get_offset(mapping) : 0;
-
-	offset = (offset + (pgoff << PAGE_SHIFT)) & 0x3FF000;
+	struct vm_unmapped_area_info info;
 
-	addr = DCACHE_ALIGN(addr - offset) + offset;
-
-	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
-		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (TASK_SIZE - len < addr)
-			return -ENOMEM;
-		if (!vma || addr + len <= vma->vm_start)
-			return addr;
-		addr = DCACHE_ALIGN(vma->vm_end - offset) + offset;
-		if (addr < vma->vm_end) /* handle wraparound */
-			return -ENOMEM;
-	}
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = PAGE_ALIGN(addr);
+	info.high_limit = TASK_SIZE;
+	info.align_mask = PAGE_MASK & (SHMLBA - 1);
+	info.align_offset = (get_offset(mapping) + pgoff) << PAGE_SHIFT;
+	return vm_unmapped_area(&info);
 }
 
 unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
-- 
1.7.7.3
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From - Thu Nov 08 21:08:48 2018
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Subject: [PATCH 3/8] mm: use vm_unmapped_area() on frv architecture
Date: Tue,  8 Jan 2013 17:28:10 -0800
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Xref: news.gmane.org gmane.linux.kernel.mm:93013 gmane.linux.kernel:1418767 gmane.linux.ports.ppc64.devel:86881 gmane.linux.ports.parisc:4708 gmane.linux.ports.alpha:1981 gmane.linux.ports.ia64:22857
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93013>

Update the frv arch_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.

Signed-off-by: Michel Lespinasse <walken@google.com>

---
 arch/frv/mm/elf-fdpic.c |   49 ++++++++++++++++------------------------------
 1 files changed, 17 insertions(+), 32 deletions(-)

diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c
index 385fd30b142f..836f14707a62 100644
--- a/arch/frv/mm/elf-fdpic.c
+++ b/arch/frv/mm/elf-fdpic.c
@@ -60,7 +60,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 				     unsigned long pgoff, unsigned long flags)
 {
 	struct vm_area_struct *vma;
-	unsigned long limit;
+	struct vm_unmapped_area_info info;
 
 	if (len > TASK_SIZE)
 		return -ENOMEM;
@@ -79,39 +79,24 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	}
 
 	/* search between the bottom of user VM and the stack grow area */
-	addr = PAGE_SIZE;
-	limit = (current->mm->start_stack - 0x00200000);
-	if (addr + len <= limit) {
-		limit -= len;
-
-		if (addr <= limit) {
-			vma = find_vma(current->mm, PAGE_SIZE);
-			for (; vma; vma = vma->vm_next) {
-				if (addr > limit)
-					break;
-				if (addr + len <= vma->vm_start)
-					goto success;
-				addr = vma->vm_end;
-			}
-		}
-	}
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = PAGE_SIZE;
+	info.high_limit = (current->mm->start_stack - 0x00200000);
+	info.align_mask = 0;
+	info.align_offset = 0;
+	addr = vm_unmapped_area(&info);
+	if (!(addr & ~PAGE_MASK))
+		goto success;
+	VM_BUG_ON(addr != -ENOMEM);
 
 	/* search from just above the WorkRAM area to the top of memory */
-	addr = PAGE_ALIGN(0x80000000);
-	limit = TASK_SIZE - len;
-	if (addr <= limit) {
-		vma = find_vma(current->mm, addr);
-		for (; vma; vma = vma->vm_next) {
-			if (addr > limit)
-				break;
-			if (addr + len <= vma->vm_start)
-				goto success;
-			addr = vma->vm_end;
-		}
-
-		if (!vma && addr <= limit)
-			goto success;
-	}
+	info.low_limit = PAGE_ALIGN(0x80000000);
+	info.high_limit = TASK_SIZE;
+	addr = vm_unmapped_area(&info);
+	if (!(addr & ~PAGE_MASK))
+		goto success;
+	VM_BUG_ON(addr != -ENOMEM);
 
 #if 0
 	printk("[area] l=%lx (ENOMEM) f='%s'\n",
-- 
1.7.7.3

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Subject: [PATCH 2/8] mm: use vm_unmapped_area() on alpha architecture
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Xref: news.gmane.org gmane.linux.kernel.mm:93014 gmane.linux.kernel:1418768 gmane.linux.ports.ppc64.devel:86882 gmane.linux.ports.parisc:4709 gmane.linux.ports.alpha:1982 gmane.linux.ports.ia64:22858
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93014>

Update the alpha arch_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.

Signed-off-by: Michel Lespinasse <walken@google.com>

---
 arch/alpha/kernel/osf_sys.c |   20 +++++++++-----------
 1 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 14db93e4c8a8..ba707e23ef37 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1298,17 +1298,15 @@ static unsigned long
 arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
 		         unsigned long limit)
 {
-	struct vm_area_struct *vma = find_vma(current->mm, addr);
-
-	while (1) {
-		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (limit - len < addr)
-			return -ENOMEM;
-		if (!vma || addr + len <= vma->vm_start)
-			return addr;
-		addr = vma->vm_end;
-		vma = vma->vm_next;
-	}
+	struct vm_unmapped_area_info info;
+
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = addr;
+	info.high_limit = limit;
+	info.align_mask = 0;
+	info.align_offset = 0;
+	return vm_unmapped_area(&info);
 }
 
 unsigned long
-- 
1.7.7.3

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From - Thu Nov 08 21:08:48 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ia64
Subject: [PATCH 5/8] mm: use vm_unmapped_area() in hugetlbfs on ia64 architecture
Date: Tue,  8 Jan 2013 17:28:12 -0800
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Xref: news.gmane.org gmane.linux.kernel.mm:93015 gmane.linux.kernel:1418769 gmane.linux.ports.ppc64.devel:86883 gmane.linux.ports.parisc:4710 gmane.linux.ports.alpha:1983 gmane.linux.ports.ia64:22859
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93015>

Update the ia64 hugetlb_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.

Signed-off-by: Michel Lespinasse <walken@google.com>

---
 arch/ia64/mm/hugetlbpage.c |   20 +++++++++-----------
 1 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
index 5ca674b74737..76069c18ee42 100644
--- a/arch/ia64/mm/hugetlbpage.c
+++ b/arch/ia64/mm/hugetlbpage.c
@@ -148,7 +148,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb,
 unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
 		unsigned long pgoff, unsigned long flags)
 {
-	struct vm_area_struct *vmm;
+	struct vm_unmapped_area_info info;
 
 	if (len > RGN_MAP_LIMIT)
 		return -ENOMEM;
@@ -165,16 +165,14 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
 	/* This code assumes that RGN_HPAGE != 0. */
 	if ((REGION_NUMBER(addr) != RGN_HPAGE) || (addr & (HPAGE_SIZE - 1)))
 		addr = HPAGE_REGION_BASE;
-	else
-		addr = ALIGN(addr, HPAGE_SIZE);
-	for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) {
-		/* At this point:  (!vmm || addr < vmm->vm_end). */
-		if (REGION_OFFSET(addr) + len > RGN_MAP_LIMIT)
-			return -ENOMEM;
-		if (!vmm || (addr + len) <= vmm->vm_start)
-			return addr;
-		addr = ALIGN(vmm->vm_end, HPAGE_SIZE);
-	}
+
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = addr;
+	info.high_limit = HPAGE_REGION_BASE + RGN_MAP_LIMIT;
+	info.align_mask = PAGE_MASK & (HPAGE_SIZE - 1);
+	info.align_offset = 0;
+	return vm_unmapped_area(&info);
 }
 
 static int __init hugetlb_setup_sz(char *str)
-- 
1.7.7.3

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From - Thu Nov 08 21:08:48 2018
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From: Michel Lespinasse <walken@google.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ia64
Subject: [PATCH 4/8] mm: use vm_unmapped_area() on ia64 architecture
Date: Tue,  8 Jan 2013 17:28:11 -0800
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To: Rik van Riel <riel@redhat.com>,
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
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Xref: news.gmane.org gmane.linux.kernel.mm:93016 gmane.linux.kernel:1418770 gmane.linux.ports.ppc64.devel:86884 gmane.linux.ports.parisc:4711 gmane.linux.ports.alpha:1984 gmane.linux.ports.ia64:22860
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93016>

Update the ia64 arch_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.

Signed-off-by: Michel Lespinasse <walken@google.com>

---
 arch/ia64/kernel/sys_ia64.c |   37 ++++++++++++-------------------------
 1 files changed, 12 insertions(+), 25 deletions(-)

diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index d9439ef2f661..41e33f84c185 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -25,9 +25,9 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 			unsigned long pgoff, unsigned long flags)
 {
 	long map_shared = (flags & MAP_SHARED);
-	unsigned long start_addr, align_mask = PAGE_SIZE - 1;
+	unsigned long align_mask = 0;
 	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma;
+	struct vm_unmapped_area_info info;
 
 	if (len > RGN_MAP_LIMIT)
 		return -ENOMEM;
@@ -44,7 +44,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 		addr = 0;
 #endif
 	if (!addr)
-		addr = mm->free_area_cache;
+		addr = TASK_UNMAPPED_BASE;
 
 	if (map_shared && (TASK_SIZE > 0xfffffffful))
 		/*
@@ -53,28 +53,15 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 		 * tasks, we prefer to avoid exhausting the address space too quickly by
 		 * limiting alignment to a single page.
 		 */
-		align_mask = SHMLBA - 1;
-
-  full_search:
-	start_addr = addr = (addr + align_mask) & ~align_mask;
-
-	for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
-		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (TASK_SIZE - len < addr || RGN_MAP_LIMIT - len < REGION_OFFSET(addr)) {
-			if (start_addr != TASK_UNMAPPED_BASE) {
-				/* Start a new search --- just in case we missed some holes.  */
-				addr = TASK_UNMAPPED_BASE;
-				goto full_search;
-			}
-			return -ENOMEM;
-		}
-		if (!vma || addr + len <= vma->vm_start) {
-			/* Remember the address where we stopped this search:  */
-			mm->free_area_cache = addr + len;
-			return addr;
-		}
-		addr = (vma->vm_end + align_mask) & ~align_mask;
-	}
+		align_mask = PAGE_MASK & (SHMLBA - 1);
+
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = addr;
+	info.high_limit = TASK_SIZE;
+	info.align_mask = align_mask;
+	info.align_offset = 0;
+	return vm_unmapped_area(&info);
 }
 
 asmlinkage long
-- 
1.7.7.3

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From - Thu Nov 08 21:08:48 2018
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X-Mozilla-Keys:                                                                                 
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From: Michel Lespinasse <walken@google.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ia64
Subject: [PATCH 6/8] mm: remove free_area_cache use in powerpc architecture
Date: Tue,  8 Jan 2013 17:28:13 -0800
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93017>

As all other architectures have been converted to use vm_unmapped_area(),
we are about to retire the free_area_cache.

This change simply removes the use of that cache in
slice_get_unmapped_area(), which will most certainly have a
performance cost. Next one will convert that function to use the
vm_unmapped_area() infrastructure and regain the performance.

Signed-off-by: Michel Lespinasse <walken@google.com>

---
 arch/powerpc/include/asm/page_64.h       |    3 +-
 arch/powerpc/mm/hugetlbpage.c            |    2 +-
 arch/powerpc/mm/slice.c                  |  108 +++++------------------------
 arch/powerpc/platforms/cell/spufs/file.c |    2 +-
 4 files changed, 22 insertions(+), 93 deletions(-)

diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h
index cd915d6b093d..88693cef4f3d 100644
--- a/arch/powerpc/include/asm/page_64.h
+++ b/arch/powerpc/include/asm/page_64.h
@@ -99,8 +99,7 @@ extern unsigned long slice_get_unmapped_area(unsigned long addr,
 					     unsigned long len,
 					     unsigned long flags,
 					     unsigned int psize,
-					     int topdown,
-					     int use_cache);
+					     int topdown);
 
 extern unsigned int get_slice_psize(struct mm_struct *mm,
 				    unsigned long addr);
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 1a6de0a7d8eb..5dc52d803ed8 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -742,7 +742,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 	struct hstate *hstate = hstate_file(file);
 	int mmu_psize = shift_to_mmu_psize(huge_page_shift(hstate));
 
-	return slice_get_unmapped_area(addr, len, flags, mmu_psize, 1, 0);
+	return slice_get_unmapped_area(addr, len, flags, mmu_psize, 1);
 }
 #endif
 
diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index cf9dada734b6..999a74f25ebe 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -240,23 +240,15 @@ static void slice_convert(struct mm_struct *mm, struct slice_mask mask, int psiz
 static unsigned long slice_find_area_bottomup(struct mm_struct *mm,
 					      unsigned long len,
 					      struct slice_mask available,
-					      int psize, int use_cache)
+					      int psize)
 {
 	struct vm_area_struct *vma;
-	unsigned long start_addr, addr;
+	unsigned long addr;
 	struct slice_mask mask;
 	int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
 
-	if (use_cache) {
-		if (len <= mm->cached_hole_size) {
-			start_addr = addr = TASK_UNMAPPED_BASE;
-			mm->cached_hole_size = 0;
-		} else
-			start_addr = addr = mm->free_area_cache;
-	} else
-		start_addr = addr = TASK_UNMAPPED_BASE;
+	addr = TASK_UNMAPPED_BASE;
 
-full_search:
 	for (;;) {
 		addr = _ALIGN_UP(addr, 1ul << pshift);
 		if ((TASK_SIZE - len) < addr)
@@ -272,63 +264,24 @@ full_search:
 				addr = _ALIGN_UP(addr + 1,  1ul << SLICE_HIGH_SHIFT);
 			continue;
 		}
-		if (!vma || addr + len <= vma->vm_start) {
-			/*
-			 * Remember the place where we stopped the search:
-			 */
-			if (use_cache)
-				mm->free_area_cache = addr + len;
+		if (!vma || addr + len <= vma->vm_start)
 			return addr;
-		}
-		if (use_cache && (addr + mm->cached_hole_size) < vma->vm_start)
-		        mm->cached_hole_size = vma->vm_start - addr;
 		addr = vma->vm_end;
 	}
 
-	/* Make sure we didn't miss any holes */
-	if (use_cache && start_addr != TASK_UNMAPPED_BASE) {
-		start_addr = addr = TASK_UNMAPPED_BASE;
-		mm->cached_hole_size = 0;
-		goto full_search;
-	}
 	return -ENOMEM;
 }
 
 static unsigned long slice_find_area_topdown(struct mm_struct *mm,
 					     unsigned long len,
 					     struct slice_mask available,
-					     int psize, int use_cache)
+					     int psize)
 {
 	struct vm_area_struct *vma;
 	unsigned long addr;
 	struct slice_mask mask;
 	int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
 
-	/* check if free_area_cache is useful for us */
-	if (use_cache) {
-		if (len <= mm->cached_hole_size) {
-			mm->cached_hole_size = 0;
-			mm->free_area_cache = mm->mmap_base;
-		}
-
-		/* either no address requested or can't fit in requested
-		 * address hole
-		 */
-		addr = mm->free_area_cache;
-
-		/* make sure it can fit in the remaining address space */
-		if (addr > len) {
-			addr = _ALIGN_DOWN(addr - len, 1ul << pshift);
-			mask = slice_range_to_mask(addr, len);
-			if (slice_check_fit(mask, available) &&
-			    slice_area_is_free(mm, addr, len))
-					/* remember the address as a hint for
-					 * next time
-					 */
-					return (mm->free_area_cache = addr);
-		}
-	}
-
 	addr = mm->mmap_base;
 	while (addr > len) {
 		/* Go down by chunk size */
@@ -352,16 +305,8 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
 		 * return with success:
 		 */
 		vma = find_vma(mm, addr);
-		if (!vma || (addr + len) <= vma->vm_start) {
-			/* remember the address as a hint for next time */
-			if (use_cache)
-				mm->free_area_cache = addr;
+		if (!vma || (addr + len) <= vma->vm_start)
 			return addr;
-		}
-
-		/* remember the largest hole we saw so far */
-		if (use_cache && (addr + mm->cached_hole_size) < vma->vm_start)
-		        mm->cached_hole_size = vma->vm_start - addr;
 
 		/* try just below the current vma->vm_start */
 		addr = vma->vm_start;
@@ -373,28 +318,18 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
 	 * can happen with large stack limits and large mmap()
 	 * allocations.
 	 */
-	addr = slice_find_area_bottomup(mm, len, available, psize, 0);
-
-	/*
-	 * Restore the topdown base:
-	 */
-	if (use_cache) {
-		mm->free_area_cache = mm->mmap_base;
-		mm->cached_hole_size = ~0UL;
-	}
-
-	return addr;
+	return slice_find_area_bottomup(mm, len, available, psize);
 }
 
 
 static unsigned long slice_find_area(struct mm_struct *mm, unsigned long len,
 				     struct slice_mask mask, int psize,
-				     int topdown, int use_cache)
+				     int topdown)
 {
 	if (topdown)
-		return slice_find_area_topdown(mm, len, mask, psize, use_cache);
+		return slice_find_area_topdown(mm, len, mask, psize);
 	else
-		return slice_find_area_bottomup(mm, len, mask, psize, use_cache);
+		return slice_find_area_bottomup(mm, len, mask, psize);
 }
 
 #define or_mask(dst, src)	do {			\
@@ -415,7 +350,7 @@ static unsigned long slice_find_area(struct mm_struct *mm, unsigned long len,
 
 unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 				      unsigned long flags, unsigned int psize,
-				      int topdown, int use_cache)
+				      int topdown)
 {
 	struct slice_mask mask = {0, 0};
 	struct slice_mask good_mask;
@@ -430,8 +365,8 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 	BUG_ON(mm->task_size == 0);
 
 	slice_dbg("slice_get_unmapped_area(mm=%p, psize=%d...\n", mm, psize);
-	slice_dbg(" addr=%lx, len=%lx, flags=%lx, topdown=%d, use_cache=%d\n",
-		  addr, len, flags, topdown, use_cache);
+	slice_dbg(" addr=%lx, len=%lx, flags=%lx, topdown=%d\n",
+		  addr, len, flags, topdown);
 
 	if (len > mm->task_size)
 		return -ENOMEM;
@@ -503,8 +438,7 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 		/* Now let's see if we can find something in the existing
 		 * slices for that size
 		 */
-		newaddr = slice_find_area(mm, len, good_mask, psize, topdown,
-					  use_cache);
+		newaddr = slice_find_area(mm, len, good_mask, psize, topdown);
 		if (newaddr != -ENOMEM) {
 			/* Found within the good mask, we don't have to setup,
 			 * we thus return directly
@@ -536,8 +470,7 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 	 * anywhere in the good area.
 	 */
 	if (addr) {
-		addr = slice_find_area(mm, len, good_mask, psize, topdown,
-				       use_cache);
+		addr = slice_find_area(mm, len, good_mask, psize, topdown);
 		if (addr != -ENOMEM) {
 			slice_dbg(" found area at 0x%lx\n", addr);
 			return addr;
@@ -547,15 +480,14 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 	/* Now let's see if we can find something in the existing slices
 	 * for that size plus free slices
 	 */
-	addr = slice_find_area(mm, len, potential_mask, psize, topdown,
-			       use_cache);
+	addr = slice_find_area(mm, len, potential_mask, psize, topdown);
 
 #ifdef CONFIG_PPC_64K_PAGES
 	if (addr == -ENOMEM && psize == MMU_PAGE_64K) {
 		/* retry the search with 4k-page slices included */
 		or_mask(potential_mask, compat_mask);
 		addr = slice_find_area(mm, len, potential_mask, psize,
-				       topdown, use_cache);
+				       topdown);
 	}
 #endif
 
@@ -586,8 +518,7 @@ unsigned long arch_get_unmapped_area(struct file *filp,
 				     unsigned long flags)
 {
 	return slice_get_unmapped_area(addr, len, flags,
-				       current->mm->context.user_psize,
-				       0, 1);
+				       current->mm->context.user_psize, 0);
 }
 
 unsigned long arch_get_unmapped_area_topdown(struct file *filp,
@@ -597,8 +528,7 @@ unsigned long arch_get_unmapped_area_topdown(struct file *filp,
 					     const unsigned long flags)
 {
 	return slice_get_unmapped_area(addr0, len, flags,
-				       current->mm->context.user_psize,
-				       1, 1);
+				       current->mm->context.user_psize, 1);
 }
 
 unsigned int get_slice_psize(struct mm_struct *mm, unsigned long addr)
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 0cfece4cf6ef..2eb4df2a9388 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -352,7 +352,7 @@ static unsigned long spufs_get_unmapped_area(struct file *file,
 
 	/* Else, try to obtain a 64K pages slice */
 	return slice_get_unmapped_area(addr, len, flags,
-				       MMU_PAGE_64K, 1, 0);
+				       MMU_PAGE_64K, 1);
 }
 #endif /* CONFIG_SPU_FS_64K_LS */
 
-- 
1.7.7.3

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From - Thu Nov 08 21:08:48 2018
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From: Michel Lespinasse <walken@google.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ia64
Subject: [PATCH 7/8] mm: use vm_unmapped_area() on powerpc architecture
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Xref: news.gmane.org gmane.linux.kernel.mm:93018 gmane.linux.kernel:1418772 gmane.linux.ports.ppc64.devel:86886 gmane.linux.ports.parisc:4713 gmane.linux.ports.alpha:1986 gmane.linux.ports.ia64:22862
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93018>

Update the powerpc slice_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.

Signed-off-by: Michel Lespinasse <walken@google.com>

---
 arch/powerpc/mm/slice.c |  128 +++++++++++++++++++++++++++++-----------------
 1 files changed, 81 insertions(+), 47 deletions(-)

diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index 999a74f25ebe..048346b7eed5 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -242,31 +242,51 @@ static unsigned long slice_find_area_bottomup(struct mm_struct *mm,
 					      struct slice_mask available,
 					      int psize)
 {
-	struct vm_area_struct *vma;
-	unsigned long addr;
-	struct slice_mask mask;
 	int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
+	unsigned long addr, found, slice;
+	struct vm_unmapped_area_info info;
 
-	addr = TASK_UNMAPPED_BASE;
+	info.flags = 0;
+	info.length = len;
+	info.align_mask = PAGE_MASK & ((1ul << pshift) - 1);
+	info.align_offset = 0;
 
-	for (;;) {
-		addr = _ALIGN_UP(addr, 1ul << pshift);
-		if ((TASK_SIZE - len) < addr)
-			break;
-		vma = find_vma(mm, addr);
-		BUG_ON(vma && (addr >= vma->vm_end));
+	addr = TASK_UNMAPPED_BASE;
+	while (addr < TASK_SIZE) {
+		info.low_limit = addr;
+		if (addr < SLICE_LOW_TOP) {
+			slice = GET_LOW_SLICE_INDEX(addr);
+			addr = (slice + 1) << SLICE_LOW_SHIFT;
+			if (!(available.low_slices & (1u << slice)))
+				continue;
+		} else {
+			slice = GET_HIGH_SLICE_INDEX(addr);
+			addr = (slice + 1) << SLICE_HIGH_SHIFT;
+			if (!(available.high_slices & (1u << slice)))
+				continue;
+		}
 
-		mask = slice_range_to_mask(addr, len);
-		if (!slice_check_fit(mask, available)) {
-			if (addr < SLICE_LOW_TOP)
-				addr = _ALIGN_UP(addr + 1,  1ul << SLICE_LOW_SHIFT);
-			else
-				addr = _ALIGN_UP(addr + 1,  1ul << SLICE_HIGH_SHIFT);
-			continue;
+ next_slice:
+		if (addr >= TASK_SIZE)
+			addr = TASK_SIZE;
+		else if (addr < SLICE_LOW_TOP) {
+			slice = GET_LOW_SLICE_INDEX(addr);
+			if (available.low_slices & (1u << slice)) {
+				addr = (slice + 1) << SLICE_LOW_SHIFT;
+				goto next_slice;
+			}
+		} else {
+			slice = GET_HIGH_SLICE_INDEX(addr);
+			if (available.high_slices & (1u << slice)) {
+				addr = (slice + 1) << SLICE_HIGH_SHIFT;
+				goto next_slice;
+			}
 		}
-		if (!vma || addr + len <= vma->vm_start)
-			return addr;
-		addr = vma->vm_end;
+		info.high_limit = addr;
+
+		found = vm_unmapped_area(&info);
+		if (!(found & ~PAGE_MASK))
+			return found;
 	}
 
 	return -ENOMEM;
@@ -277,39 +297,53 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
 					     struct slice_mask available,
 					     int psize)
 {
-	struct vm_area_struct *vma;
-	unsigned long addr;
-	struct slice_mask mask;
 	int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
+	unsigned long addr, found, slice;
+	struct vm_unmapped_area_info info;
 
-	addr = mm->mmap_base;
-	while (addr > len) {
-		/* Go down by chunk size */
-		addr = _ALIGN_DOWN(addr - len, 1ul << pshift);
+	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
+	info.length = len;
+	info.align_mask = PAGE_MASK & ((1ul << pshift) - 1);
+	info.align_offset = 0;
 
-		/* Check for hit with different page size */
-		mask = slice_range_to_mask(addr, len);
-		if (!slice_check_fit(mask, available)) {
-			if (addr < SLICE_LOW_TOP)
-				addr = _ALIGN_DOWN(addr, 1ul << SLICE_LOW_SHIFT);
-			else if (addr < (1ul << SLICE_HIGH_SHIFT))
-				addr = SLICE_LOW_TOP;
-			else
-				addr = _ALIGN_DOWN(addr, 1ul << SLICE_HIGH_SHIFT);
-			continue;
+	addr = mm->mmap_base;
+	while (addr > PAGE_SIZE) {
+		info.high_limit = addr;
+                if (addr < SLICE_LOW_TOP) {
+			slice = GET_LOW_SLICE_INDEX(addr - 1);
+			addr = slice << SLICE_LOW_SHIFT;
+			if (!(available.low_slices & (1u << slice)))
+				continue;
+		} else {
+			slice = GET_HIGH_SLICE_INDEX(addr - 1);
+			addr = slice ? (slice << SLICE_HIGH_SHIFT) :
+								SLICE_LOW_TOP;
+			if (!(available.high_slices & (1u << slice)))
+				continue;
 		}
 
-		/*
-		 * Lookup failure means no vma is above this address,
-		 * else if new region fits below vma->vm_start,
-		 * return with success:
-		 */
-		vma = find_vma(mm, addr);
-		if (!vma || (addr + len) <= vma->vm_start)
-			return addr;
+ next_slice:
+		if (addr < PAGE_SIZE)
+			addr = PAGE_SIZE;
+		else if (addr < SLICE_LOW_TOP) {
+			slice = GET_LOW_SLICE_INDEX(addr - 1);
+			if (available.low_slices & (1u << slice)) {
+				addr = slice << SLICE_LOW_SHIFT;
+				goto next_slice;
+			}
+		} else {
+			slice = GET_HIGH_SLICE_INDEX(addr - 1);
+			if (available.high_slices & (1u << slice)) {
+				addr = slice ? (slice << SLICE_HIGH_SHIFT) :
+								SLICE_LOW_TOP;
+				goto next_slice;
+			}
+		}
+		info.low_limit = addr;
 
-		/* try just below the current vma->vm_start */
-		addr = vma->vm_start;
+		found = vm_unmapped_area(&info);
+		if (!(found & ~PAGE_MASK))
+			return found;
 	}
 
 	/*
-- 
1.7.7.3

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From - Thu Nov 08 21:08:48 2018
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From: Michel Lespinasse <walken@google.com>
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Subject: [PATCH 8/8] mm: remove free_area_cache
Date: Tue,  8 Jan 2013 17:28:15 -0800
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Xref: news.gmane.org gmane.linux.kernel.mm:93019 gmane.linux.kernel:1418773 gmane.linux.ports.ppc64.devel:86887 gmane.linux.ports.parisc:4714 gmane.linux.ports.alpha:1987 gmane.linux.ports.ia64:22863
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93019>

Since all architectures have been converted to use vm_unmapped_area(),
there is no remaining use for the free_area_cache.

Signed-off-by: Michel Lespinasse <walken@google.com>

---
 arch/arm/mm/mmap.c               |    2 --
 arch/arm64/mm/mmap.c             |    2 --
 arch/mips/mm/mmap.c              |    2 --
 arch/powerpc/mm/mmap_64.c        |    2 --
 arch/s390/mm/mmap.c              |    4 ----
 arch/sparc/kernel/sys_sparc_64.c |    2 --
 arch/tile/mm/mmap.c              |    2 --
 arch/x86/ia32/ia32_aout.c        |    2 --
 arch/x86/mm/mmap.c               |    2 --
 fs/binfmt_aout.c                 |    2 --
 fs/binfmt_elf.c                  |    2 --
 include/linux/mm_types.h         |    3 ---
 include/linux/sched.h            |    2 --
 kernel/fork.c                    |    4 ----
 mm/mmap.c                        |   28 ----------------------------
 mm/nommu.c                       |    4 ----
 mm/util.c                        |    1 -
 17 files changed, 0 insertions(+), 66 deletions(-)

diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 10062ceadd1c..0c6356255fe3 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -181,11 +181,9 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base(random_factor);
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
 
diff --git a/arch/arm64/mm/mmap.c b/arch/arm64/mm/mmap.c
index 7c7be7855638..8ed6cb1a900f 100644
--- a/arch/arm64/mm/mmap.c
+++ b/arch/arm64/mm/mmap.c
@@ -90,11 +90,9 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base();
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
 EXPORT_SYMBOL_GPL(arch_pick_mmap_layout);
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index d9be7540a6be..f4e63c29d044 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -158,11 +158,9 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base(random_factor);
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
 
diff --git a/arch/powerpc/mm/mmap_64.c b/arch/powerpc/mm/mmap_64.c
index 67a42ed0d2fc..cb8bdbe4972f 100644
--- a/arch/powerpc/mm/mmap_64.c
+++ b/arch/powerpc/mm/mmap_64.c
@@ -92,10 +92,8 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base();
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index c59a5efa58b1..f2a462625c9e 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -91,11 +91,9 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base();
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
 
@@ -173,11 +171,9 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
 		mm->get_unmapped_area = s390_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base();
 		mm->get_unmapped_area = s390_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
 
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 708bc29d36a8..f3c169f9d3a1 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -290,7 +290,6 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	    sysctl_legacy_va_layout) {
 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		/* We know it's 32-bit */
 		unsigned long task_size = STACK_TOP32;
@@ -302,7 +301,6 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 
 		mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor);
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
 
diff --git a/arch/tile/mm/mmap.c b/arch/tile/mm/mmap.c
index f96f4cec602a..d67d91ebf63e 100644
--- a/arch/tile/mm/mmap.c
+++ b/arch/tile/mm/mmap.c
@@ -66,10 +66,8 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (!is_32bit || rlimit(RLIMIT_STACK) == RLIM_INFINITY) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base(mm);
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index a703af19c281..3b3558577642 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -309,8 +309,6 @@ static int load_aout_binary(struct linux_binprm *bprm)
 		(current->mm->start_data = N_DATADDR(ex));
 	current->mm->brk = ex.a_bss +
 		(current->mm->start_brk = N_BSSADDR(ex));
-	current->mm->free_area_cache = TASK_UNMAPPED_BASE;
-	current->mm->cached_hole_size = 0;
 
 	retval = setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT);
 	if (retval < 0) {
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index 845df6835f9f..62c29a5bfe26 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -115,10 +115,8 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = mmap_legacy_base();
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base();
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index 6043567b95c2..692e75ca6415 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -256,8 +256,6 @@ static int load_aout_binary(struct linux_binprm * bprm)
 		(current->mm->start_data = N_DATADDR(ex));
 	current->mm->brk = ex.a_bss +
 		(current->mm->start_brk = N_BSSADDR(ex));
-	current->mm->free_area_cache = current->mm->mmap_base;
-	current->mm->cached_hole_size = 0;
 
 	retval = setup_arg_pages(bprm, STACK_TOP, EXSTACK_DEFAULT);
 	if (retval < 0) {
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 0c42cdbabecf..e2087dea9c1e 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -730,8 +730,6 @@ static int load_elf_binary(struct linux_binprm *bprm)
 
 	/* Do this so that we can load the interpreter, if need be.  We will
 	   change some of these later */
-	current->mm->free_area_cache = current->mm->mmap_base;
-	current->mm->cached_hole_size = 0;
 	retval = setup_arg_pages(bprm, randomize_stack_top(STACK_TOP),
 				 executable_stack);
 	if (retval < 0) {
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index f8f5162a3571..e50eb047ea8a 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -329,12 +329,9 @@ struct mm_struct {
 	unsigned long (*get_unmapped_area) (struct file *filp,
 				unsigned long addr, unsigned long len,
 				unsigned long pgoff, unsigned long flags);
-	void (*unmap_area) (struct mm_struct *mm, unsigned long addr);
 #endif
 	unsigned long mmap_base;		/* base of mmap area */
 	unsigned long task_size;		/* size of task vm space */
-	unsigned long cached_hole_size; 	/* if non-zero, the largest hole below free_area_cache */
-	unsigned long free_area_cache;		/* first hole of size cached_hole_size or larger */
 	unsigned long highest_vm_end;		/* highest vma end address */
 	pgd_t * pgd;
 	atomic_t mm_users;			/* How many users with user space? */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 206bb089c06b..fa7e0a60ebe9 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -366,8 +366,6 @@ extern unsigned long
 arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
 			  unsigned long len, unsigned long pgoff,
 			  unsigned long flags);
-extern void arch_unmap_area(struct mm_struct *, unsigned long);
-extern void arch_unmap_area_topdown(struct mm_struct *, unsigned long);
 #else
 static inline void arch_pick_mmap_layout(struct mm_struct *mm) {}
 #endif
diff --git a/kernel/fork.c b/kernel/fork.c
index a31b823b3c2d..bdf61755ef4a 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -364,8 +364,6 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 	mm->locked_vm = 0;
 	mm->mmap = NULL;
 	mm->mmap_cache = NULL;
-	mm->free_area_cache = oldmm->mmap_base;
-	mm->cached_hole_size = ~0UL;
 	mm->map_count = 0;
 	cpumask_clear(mm_cpumask(mm));
 	mm->mm_rb = RB_ROOT;
@@ -539,8 +537,6 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p)
 	mm->nr_ptes = 0;
 	memset(&mm->rss_stat, 0, sizeof(mm->rss_stat));
 	spin_lock_init(&mm->page_table_lock);
-	mm->free_area_cache = TASK_UNMAPPED_BASE;
-	mm->cached_hole_size = ~0UL;
 	mm_init_aio(mm);
 	mm_init_owner(mm, p);
 
diff --git a/mm/mmap.c b/mm/mmap.c
index f54b235f29a9..532f447879d4 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1800,15 +1800,6 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 }
 #endif	
 
-void arch_unmap_area(struct mm_struct *mm, unsigned long addr)
-{
-	/*
-	 * Is this a new hole at the lowest possible address?
-	 */
-	if (addr >= TASK_UNMAPPED_BASE && addr < mm->free_area_cache)
-		mm->free_area_cache = addr;
-}
-
 /*
  * This mmap-allocator allocates new areas top-down from below the
  * stack's low limit (the base):
@@ -1865,19 +1856,6 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 }
 #endif
 
-void arch_unmap_area_topdown(struct mm_struct *mm, unsigned long addr)
-{
-	/*
-	 * Is this a new hole at the highest possible address?
-	 */
-	if (addr > mm->free_area_cache)
-		mm->free_area_cache = addr;
-
-	/* dont allow allocations above current base */
-	if (mm->free_area_cache > mm->mmap_base)
-		mm->free_area_cache = mm->mmap_base;
-}
-
 unsigned long
 get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
 		unsigned long pgoff, unsigned long flags)
@@ -2276,7 +2254,6 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
 {
 	struct vm_area_struct **insertion_point;
 	struct vm_area_struct *tail_vma = NULL;
-	unsigned long addr;
 
 	insertion_point = (prev ? &prev->vm_next : &mm->mmap);
 	vma->vm_prev = NULL;
@@ -2293,11 +2270,6 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
 	} else
 		mm->highest_vm_end = prev ? prev->vm_end : 0;
 	tail_vma->vm_next = NULL;
-	if (mm->unmap_area == arch_unmap_area)
-		addr = prev ? prev->vm_end : mm->mmap_base;
-	else
-		addr = vma ?  vma->vm_start : mm->mmap_base;
-	mm->unmap_area(mm, addr);
 	mm->mmap_cache = NULL;		/* Kill the cache. */
 }
 
diff --git a/mm/nommu.c b/mm/nommu.c
index 79c3cac87afa..b5535ff2f9d1 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1852,10 +1852,6 @@ unsigned long arch_get_unmapped_area(struct file *file, unsigned long addr,
 	return -ENOMEM;
 }
 
-void arch_unmap_area(struct mm_struct *mm, unsigned long addr)
-{
-}
-
 void unmap_mapping_range(struct address_space *mapping,
 			 loff_t const holebegin, loff_t const holelen,
 			 int even_cows)
diff --git a/mm/util.c b/mm/util.c
index c55e26b17d93..4c19aa6a1b43 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -293,7 +293,6 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 {
 	mm->mmap_base = TASK_UNMAPPED_BASE;
 	mm->get_unmapped_area = arch_get_unmapped_area;
-	mm->unmap_area = arch_unmap_area;
 }
 #endif
 
-- 
1.7.7.3

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Subject: Re: [PATCH 0/8] vm_unmapped_area: finish the mission
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Whoops, I was supposed to find a more appropriate subject line before
sending this :]

On Tue, Jan 8, 2013 at 5:28 PM, Michel Lespinasse <walken@google.com> wrote:
> These patches, which apply on top of v3.8-rc kernels, are to complete the
> VMA gap finding code I introduced (following Rik's initial proposal) in
> v3.8-rc1.

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.

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On Tue, 2013-01-08 at 17:28 -0800, Michel Lespinasse wrote:
> Update the powerpc slice_get_unmapped_area function to make use of
> vm_unmapped_area() instead of implementing a brute force search.
> 
> Signed-off-by: Michel Lespinasse <walken@google.com>
> 
> ---
>  arch/powerpc/mm/slice.c |  128 +++++++++++++++++++++++++++++-----------------
>  1 files changed, 81 insertions(+), 47 deletions(-)

That doesn't look good ... the resulting code is longer than the
original, which makes me wonder how it is an improvement...

Now it could just be a matter of how the code is factored, I see
quite a bit of duplication of the whole slice mask test...

Cheers,
Ben.

> diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
> index 999a74f25ebe..048346b7eed5 100644
> --- a/arch/powerpc/mm/slice.c
> +++ b/arch/powerpc/mm/slice.c
> @@ -242,31 +242,51 @@ static unsigned long slice_find_area_bottomup(struct mm_struct *mm,
>  					      struct slice_mask available,
>  					      int psize)
>  {
> -	struct vm_area_struct *vma;
> -	unsigned long addr;
> -	struct slice_mask mask;
>  	int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
> +	unsigned long addr, found, slice;
> +	struct vm_unmapped_area_info info;
>  
> -	addr = TASK_UNMAPPED_BASE;
> +	info.flags = 0;
> +	info.length = len;
> +	info.align_mask = PAGE_MASK & ((1ul << pshift) - 1);
> +	info.align_offset = 0;
>  
> -	for (;;) {
> -		addr = _ALIGN_UP(addr, 1ul << pshift);
> -		if ((TASK_SIZE - len) < addr)
> -			break;
> -		vma = find_vma(mm, addr);
> -		BUG_ON(vma && (addr >= vma->vm_end));
> +	addr = TASK_UNMAPPED_BASE;
> +	while (addr < TASK_SIZE) {
> +		info.low_limit = addr;
> +		if (addr < SLICE_LOW_TOP) {
> +			slice = GET_LOW_SLICE_INDEX(addr);
> +			addr = (slice + 1) << SLICE_LOW_SHIFT;
> +			if (!(available.low_slices & (1u << slice)))
> +				continue;
> +		} else {
> +			slice = GET_HIGH_SLICE_INDEX(addr);
> +			addr = (slice + 1) << SLICE_HIGH_SHIFT;
> +			if (!(available.high_slices & (1u << slice)))
> +				continue;
> +		}
>  
> -		mask = slice_range_to_mask(addr, len);
> -		if (!slice_check_fit(mask, available)) {
> -			if (addr < SLICE_LOW_TOP)
> -				addr = _ALIGN_UP(addr + 1,  1ul << SLICE_LOW_SHIFT);
> -			else
> -				addr = _ALIGN_UP(addr + 1,  1ul << SLICE_HIGH_SHIFT);
> -			continue;
> + next_slice:
> +		if (addr >= TASK_SIZE)
> +			addr = TASK_SIZE;
> +		else if (addr < SLICE_LOW_TOP) {
> +			slice = GET_LOW_SLICE_INDEX(addr);
> +			if (available.low_slices & (1u << slice)) {
> +				addr = (slice + 1) << SLICE_LOW_SHIFT;
> +				goto next_slice;
> +			}
> +		} else {
> +			slice = GET_HIGH_SLICE_INDEX(addr);
> +			if (available.high_slices & (1u << slice)) {
> +				addr = (slice + 1) << SLICE_HIGH_SHIFT;
> +				goto next_slice;
> +			}
>  		}
> -		if (!vma || addr + len <= vma->vm_start)
> -			return addr;
> -		addr = vma->vm_end;
> +		info.high_limit = addr;
> +
> +		found = vm_unmapped_area(&info);
> +		if (!(found & ~PAGE_MASK))
> +			return found;
>  	}
>  
>  	return -ENOMEM;
> @@ -277,39 +297,53 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
>  					     struct slice_mask available,
>  					     int psize)
>  {
> -	struct vm_area_struct *vma;
> -	unsigned long addr;
> -	struct slice_mask mask;
>  	int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
> +	unsigned long addr, found, slice;
> +	struct vm_unmapped_area_info info;
>  
> -	addr = mm->mmap_base;
> -	while (addr > len) {
> -		/* Go down by chunk size */
> -		addr = _ALIGN_DOWN(addr - len, 1ul << pshift);
> +	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
> +	info.length = len;
> +	info.align_mask = PAGE_MASK & ((1ul << pshift) - 1);
> +	info.align_offset = 0;
>  
> -		/* Check for hit with different page size */
> -		mask = slice_range_to_mask(addr, len);
> -		if (!slice_check_fit(mask, available)) {
> -			if (addr < SLICE_LOW_TOP)
> -				addr = _ALIGN_DOWN(addr, 1ul << SLICE_LOW_SHIFT);
> -			else if (addr < (1ul << SLICE_HIGH_SHIFT))
> -				addr = SLICE_LOW_TOP;
> -			else
> -				addr = _ALIGN_DOWN(addr, 1ul << SLICE_HIGH_SHIFT);
> -			continue;
> +	addr = mm->mmap_base;
> +	while (addr > PAGE_SIZE) {
> +		info.high_limit = addr;
> +                if (addr < SLICE_LOW_TOP) {
> +			slice = GET_LOW_SLICE_INDEX(addr - 1);
> +			addr = slice << SLICE_LOW_SHIFT;
> +			if (!(available.low_slices & (1u << slice)))
> +				continue;
> +		} else {
> +			slice = GET_HIGH_SLICE_INDEX(addr - 1);
> +			addr = slice ? (slice << SLICE_HIGH_SHIFT) :
> +								SLICE_LOW_TOP;
> +			if (!(available.high_slices & (1u << slice)))
> +				continue;
>  		}
>  
> -		/*
> -		 * Lookup failure means no vma is above this address,
> -		 * else if new region fits below vma->vm_start,
> -		 * return with success:
> -		 */
> -		vma = find_vma(mm, addr);
> -		if (!vma || (addr + len) <= vma->vm_start)
> -			return addr;
> + next_slice:
> +		if (addr < PAGE_SIZE)
> +			addr = PAGE_SIZE;
> +		else if (addr < SLICE_LOW_TOP) {
> +			slice = GET_LOW_SLICE_INDEX(addr - 1);
> +			if (available.low_slices & (1u << slice)) {
> +				addr = slice << SLICE_LOW_SHIFT;
> +				goto next_slice;
> +			}
> +		} else {
> +			slice = GET_HIGH_SLICE_INDEX(addr - 1);
> +			if (available.high_slices & (1u << slice)) {
> +				addr = slice ? (slice << SLICE_HIGH_SHIFT) :
> +								SLICE_LOW_TOP;
> +				goto next_slice;
> +			}
> +		}
> +		info.low_limit = addr;
>  
> -		/* try just below the current vma->vm_start */
> -		addr = vma->vm_start;
> +		found = vm_unmapped_area(&info);
> +		if (!(found & ~PAGE_MASK))
> +			return found;
>  	}
>  
>  	/*


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From - Thu Nov 08 21:08:48 2018
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Subject: Re: [PATCH 7/8] mm: use vm_unmapped_area() on powerpc architecture
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On Tue, Jan 8, 2013 at 6:15 PM, Benjamin Herrenschmidt
<benh@kernel.crashing.org> wrote:
> On Tue, 2013-01-08 at 17:28 -0800, Michel Lespinasse wrote:
>> Update the powerpc slice_get_unmapped_area function to make use of
>> vm_unmapped_area() instead of implementing a brute force search.
>>
>> Signed-off-by: Michel Lespinasse <walken@google.com>
>>
>> ---
>>  arch/powerpc/mm/slice.c |  128 +++++++++++++++++++++++++++++-----------------
>>  1 files changed, 81 insertions(+), 47 deletions(-)
>
> That doesn't look good ... the resulting code is longer than the
> original, which makes me wonder how it is an improvement...

Well no fair, the previous patch (for powerpc as well) has 22
insertions and 93 deletions :)

The benefit is that the new code has lower algorithmic complexity, it
replaces a per-vma loop with O(N) complexity with an outer loop that
finds contiguous slice blocks and passes them to vm_unmapped_area()
which is only O(log N) complexity. So the new code will be faster for
workloads which use lots of vmas.

That said, I do agree that the code that looks for contiguous
available slices looks kinda ugly - just not sure how to make it look
nicer though.

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.
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Subject: Re: [PATCH 7/8] mm: use vm_unmapped_area() on powerpc architecture
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On Tue, 2013-01-08 at 18:38 -0800, Michel Lespinasse wrote:
> 
> Well no fair, the previous patch (for powerpc as well) has 22
> insertions and 93 deletions :)
> 
> The benefit is that the new code has lower algorithmic complexity, it
> replaces a per-vma loop with O(N) complexity with an outer loop that
> finds contiguous slice blocks and passes them to vm_unmapped_area()
> which is only O(log N) complexity. So the new code will be faster for
> workloads which use lots of vmas.
> 
> That said, I do agree that the code that looks for contiguous
> available slices looks kinda ugly - just not sure how to make it look
> nicer though.

Ok. I think at least you can move that construct:

+               if (addr < SLICE_LOW_TOP) {
+                       slice = GET_LOW_SLICE_INDEX(addr);
+                       addr = (slice + 1) << SLICE_LOW_SHIFT;
+                       if (!(available.low_slices & (1u << slice)))
+                               continue;
+               } else {
+                       slice = GET_HIGH_SLICE_INDEX(addr);
+                       addr = (slice + 1) << SLICE_HIGH_SHIFT;
+                       if (!(available.high_slices & (1u << slice)))
+                               continue;
+               }

Into some kind of helper. It will probably compile to the same thing but
at least it's more readable and it will avoid a fuckup in the future if
somebody changes the algorithm and forgets to update one of the
copies :-)

Cheers,
Ben.


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From - Thu Nov 08 21:08:49 2018
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Subject: Re: [PATCH 7/8] mm: use vm_unmapped_area() on powerpc architecture
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Matt Turner <mattst88@gmail.com>,
	David Howells <dhowells@redhat.com>,
	Tony Luck <tony.luck@intel.com>, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	linuxppc-dev@lists.ozlabs.org, linux-parisc@vger.kernel.org,
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To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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On Wed, Jan 09, 2013 at 02:32:56PM +1100, Benjamin Herrenschmidt wrote:
> Ok. I think at least you can move that construct:
> 
> +               if (addr < SLICE_LOW_TOP) {
> +                       slice = GET_LOW_SLICE_INDEX(addr);
> +                       addr = (slice + 1) << SLICE_LOW_SHIFT;
> +                       if (!(available.low_slices & (1u << slice)))
> +                               continue;
> +               } else {
> +                       slice = GET_HIGH_SLICE_INDEX(addr);
> +                       addr = (slice + 1) << SLICE_HIGH_SHIFT;
> +                       if (!(available.high_slices & (1u << slice)))
> +                               continue;
> +               }
> 
> Into some kind of helper. It will probably compile to the same thing but
> at least it's more readable and it will avoid a fuckup in the future if
> somebody changes the algorithm and forgets to update one of the
> copies :-)

All right, does the following look more palatable then ?
(didn't re-test it, though)

Signed-off-by: Michel Lespinasse <walken@google.com>

---
 arch/powerpc/mm/slice.c |  123 ++++++++++++++++++++++++++++++-----------------
 1 files changed, 78 insertions(+), 45 deletions(-)

diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index 999a74f25ebe..3e99c149271a 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -237,36 +237,69 @@ static void slice_convert(struct mm_struct *mm, struct slice_mask mask, int psiz
 #endif
 }
 
+/*
+ * Compute which slice addr is part of;
+ * set *boundary_addr to the start or end boundary of that slice
+ * (depending on 'end' parameter);
+ * return boolean indicating if the slice is marked as available in the
+ * 'available' slice_mark.
+ */
+static bool slice_scan_available(unsigned long addr,
+				 struct slice_mask available,
+				 int end,
+				 unsigned long *boundary_addr)
+{
+	unsigned long slice;
+	if (addr < SLICE_LOW_TOP) {
+		slice = GET_LOW_SLICE_INDEX(addr);
+		*boundary_addr = (slice + end) << SLICE_LOW_SHIFT;
+		return !!(available.low_slices & (1u << slice));
+	} else {
+		slice = GET_HIGH_SLICE_INDEX(addr);
+		*boundary_addr = (slice + end) ?
+			((slice + end) << SLICE_HIGH_SHIFT) : SLICE_LOW_TOP;
+		return !!(available.high_slices & (1u << slice));
+	}
+}
+
 static unsigned long slice_find_area_bottomup(struct mm_struct *mm,
 					      unsigned long len,
 					      struct slice_mask available,
 					      int psize)
 {
-	struct vm_area_struct *vma;
-	unsigned long addr;
-	struct slice_mask mask;
 	int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
+	unsigned long addr, found, next_end;
+	struct vm_unmapped_area_info info;
 
-	addr = TASK_UNMAPPED_BASE;
-
-	for (;;) {
-		addr = _ALIGN_UP(addr, 1ul << pshift);
-		if ((TASK_SIZE - len) < addr)
-			break;
-		vma = find_vma(mm, addr);
-		BUG_ON(vma && (addr >= vma->vm_end));
+	info.flags = 0;
+	info.length = len;
+	info.align_mask = PAGE_MASK & ((1ul << pshift) - 1);
+	info.align_offset = 0;
 
-		mask = slice_range_to_mask(addr, len);
-		if (!slice_check_fit(mask, available)) {
-			if (addr < SLICE_LOW_TOP)
-				addr = _ALIGN_UP(addr + 1,  1ul << SLICE_LOW_SHIFT);
-			else
-				addr = _ALIGN_UP(addr + 1,  1ul << SLICE_HIGH_SHIFT);
+	addr = TASK_UNMAPPED_BASE;
+	while (addr < TASK_SIZE) {
+		info.low_limit = addr;
+		if (!slice_scan_available(addr, available, 1, &addr))
 			continue;
+
+ next_slice:
+		/*
+		 * At this point [info.low_limit; addr) covers
+		 * available slices only and ends at a slice boundary.
+		 * Check if we need to reduce the range, or if we can
+		 * extend it to cover the next available slice.
+		 */
+		if (addr >= TASK_SIZE)
+			addr = TASK_SIZE;
+		else if (slice_scan_available(addr, available, 1, &next_end)) {
+			addr = next_end;
+			goto next_slice;
 		}
-		if (!vma || addr + len <= vma->vm_start)
-			return addr;
-		addr = vma->vm_end;
+		info.high_limit = addr;
+
+		found = vm_unmapped_area(&info);
+		if (!(found & ~PAGE_MASK))
+			return found;
 	}
 
 	return -ENOMEM;
@@ -277,39 +310,39 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
 					     struct slice_mask available,
 					     int psize)
 {
-	struct vm_area_struct *vma;
-	unsigned long addr;
-	struct slice_mask mask;
 	int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
+	unsigned long addr, found, prev;
+	struct vm_unmapped_area_info info;
 
-	addr = mm->mmap_base;
-	while (addr > len) {
-		/* Go down by chunk size */
-		addr = _ALIGN_DOWN(addr - len, 1ul << pshift);
+	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
+	info.length = len;
+	info.align_mask = PAGE_MASK & ((1ul << pshift) - 1);
+	info.align_offset = 0;
 
-		/* Check for hit with different page size */
-		mask = slice_range_to_mask(addr, len);
-		if (!slice_check_fit(mask, available)) {
-			if (addr < SLICE_LOW_TOP)
-				addr = _ALIGN_DOWN(addr, 1ul << SLICE_LOW_SHIFT);
-			else if (addr < (1ul << SLICE_HIGH_SHIFT))
-				addr = SLICE_LOW_TOP;
-			else
-				addr = _ALIGN_DOWN(addr, 1ul << SLICE_HIGH_SHIFT);
+	addr = mm->mmap_base;
+	while (addr > PAGE_SIZE) {
+		info.high_limit = addr;
+		if (!slice_scan_available(addr - 1, available, 0, &addr))
 			continue;
-		}
 
+ prev_slice:
 		/*
-		 * Lookup failure means no vma is above this address,
-		 * else if new region fits below vma->vm_start,
-		 * return with success:
+		 * At this point [addr; info.high_limit) covers
+		 * available slices only and starts at a slice boundary.
+		 * Check if we need to reduce the range, or if we can
+		 * extend it to cover the previous available slice.
 		 */
-		vma = find_vma(mm, addr);
-		if (!vma || (addr + len) <= vma->vm_start)
-			return addr;
+		if (addr < PAGE_SIZE)
+			addr = PAGE_SIZE;
+		else if (slice_scan_available(addr - 1, available, 0, &prev)) {
+			addr = prev;
+			goto prev_slice;
+		}
+		info.low_limit = addr;
 
-		/* try just below the current vma->vm_start */
-		addr = vma->vm_start;
+		found = vm_unmapped_area(&info);
+		if (!(found & ~PAGE_MASK))
+			return found;
 	}
 
 	/*

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.

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From - Thu Nov 08 21:08:49 2018
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Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ia64
Subject: Re: [PATCH 1/8] mm: use vm_unmapped_area() on parisc architecture
Date: Wed, 09 Jan 2013 11:56:35 -0500
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To: Michel Lespinasse <walken@google.com>
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On 01/08/2013 08:28 PM, Michel Lespinasse wrote:
> Update the parisc arch_get_unmapped_area function to make use of
> vm_unmapped_area() instead of implementing a brute force search.
>
> Signed-off-by: Michel Lespinasse <walken@google.com>

Acked-by: Rik van Riel <riel@redhat.com>

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From - Thu Nov 08 21:08:49 2018
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Subject: Re: [PATCH 2/8] mm: use vm_unmapped_area() on alpha architecture
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On 01/08/2013 08:28 PM, Michel Lespinasse wrote:
> Update the alpha arch_get_unmapped_area function to make use of
> vm_unmapped_area() instead of implementing a brute force search.
>
> Signed-off-by: Michel Lespinasse <walken@google.com>

Acked-by: Rik van Riel <riel@redhat.com>

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Subject: Re: [PATCH 3/8] mm: use vm_unmapped_area() on frv architecture
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93096>

On 01/08/2013 08:28 PM, Michel Lespinasse wrote:
> Update the frv arch_get_unmapped_area function to make use of
> vm_unmapped_area() instead of implementing a brute force search.
>
> Signed-off-by: Michel Lespinasse <walken@google.com>

Acked-by: Rik van Riel <riel@redhat.com>

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From - Thu Nov 08 21:08:49 2018
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Subject: Re: [PATCH 4/8] mm: use vm_unmapped_area() on ia64 architecture
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On 01/08/2013 08:28 PM, Michel Lespinasse wrote:
> Update the ia64 arch_get_unmapped_area function to make use of
> vm_unmapped_area() instead of implementing a brute force search.
>
> Signed-off-by: Michel Lespinasse <walken@google.com>

Acked-by: Rik van Riel <riel@redhat.com>

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From - Thu Nov 08 21:08:49 2018
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Subject: Re: [PATCH 5/8] mm: use vm_unmapped_area() in hugetlbfs on ia64 architecture
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93098>

On 01/08/2013 08:28 PM, Michel Lespinasse wrote:
> Update the ia64 hugetlb_get_unmapped_area function to make use of
> vm_unmapped_area() instead of implementing a brute force search.
>
> Signed-off-by: Michel Lespinasse <walken@google.com>

Acked-by: Rik van Riel <riel@redhat.com>

--
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From - Thu Nov 08 21:08:49 2018
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On 01/08/2013 08:28 PM, Michel Lespinasse wrote:
> As all other architectures have been converted to use vm_unmapped_area(),
> we are about to retire the free_area_cache.
>
> This change simply removes the use of that cache in
> slice_get_unmapped_area(), which will most certainly have a
> performance cost. Next one will convert that function to use the
> vm_unmapped_area() infrastructure and regain the performance.
>
> Signed-off-by: Michel Lespinasse <walken@google.com>

Acked-by: Rik van Riel <riel@redhat.com>

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On 01/08/2013 08:28 PM, Michel Lespinasse wrote:
> Update the powerpc slice_get_unmapped_area function to make use of
> vm_unmapped_area() instead of implementing a brute force search.
>
> Signed-off-by: Michel Lespinasse <walken@google.com>

Acked-by: Rik van Riel <riel@redhat.com>

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From - Thu Nov 08 21:08:49 2018
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On 01/08/2013 08:28 PM, Michel Lespinasse wrote:
> Since all architectures have been converted to use vm_unmapped_area(),
> there is no remaining use for the free_area_cache.
>
> Signed-off-by: Michel Lespinasse <walken@google.com>

Yay

Acked-by: Rik van Riel <riel@redhat.com>

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From - Thu Nov 08 21:08:49 2018
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On 01/09/2013 06:23 AM, Michel Lespinasse wrote:
> On Wed, Jan 09, 2013 at 02:32:56PM +1100, Benjamin Herrenschmidt wrote:
>> Ok. I think at least you can move that construct:
>>
>> +               if (addr < SLICE_LOW_TOP) {
>> +                       slice = GET_LOW_SLICE_INDEX(addr);
>> +                       addr = (slice + 1) << SLICE_LOW_SHIFT;
>> +                       if (!(available.low_slices & (1u << slice)))
>> +                               continue;
>> +               } else {
>> +                       slice = GET_HIGH_SLICE_INDEX(addr);
>> +                       addr = (slice + 1) << SLICE_HIGH_SHIFT;
>> +                       if (!(available.high_slices & (1u << slice)))
>> +                               continue;
>> +               }
>>
>> Into some kind of helper. It will probably compile to the same thing but
>> at least it's more readable and it will avoid a fuckup in the future if
>> somebody changes the algorithm and forgets to update one of the
>> copies :-)
>
> All right, does the following look more palatable then ?
> (didn't re-test it, though)

Looks equivalent. I have also not tested :)

> Signed-off-by: Michel Lespinasse <walken@google.com>

Acked-by: Rik van Riel <riel@redhat.com>

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Subject: [PATCH 8/9] parisc: Provide dma_mmap_coherent() and dma_get_sgtable()
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parisc/allmodconfig:

drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=80=98vb=
2_dc_mmap=E2=80=99:
drivers/media/v4l2-core/videobuf2-dma-contig.c:204: error: implicit dec=
laration of function =E2=80=98dma_mmap_coherent=E2=80=99
drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=80=98vb=
2_dc_get_base_sgt=E2=80=99:
drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: implicit dec=
laration of function =E2=80=98dma_get_sgtable=E2=80=99

=46or architectures using dma_map_ops, dma_mmap_coherent() and
dma_get_sgtable() are provided in <asm-generic/dma-mapping-common.h>.

Parisc does not use dma_map_ops, hence it should implement them as inli=
ne
stubs using dma_common_mmap() and dma_common_get_sgtable().

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/include/asm/dma-mapping.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/includ=
e/asm/dma-mapping.h
index 467bbd5..1fac0bf 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -238,4 +238,14 @@ void * sba_get_iommu(struct parisc_device *dev);
 /* At the moment, we panic on error for IOMMU resource exaustion */
 #define dma_mapping_error(dev, x)	0
=20
+/* drivers/base/dma-mapping.c */
+extern int dma_common_mmap(struct device *dev, struct vm_area_struct *=
vma,
+			   void *cpu_addr, dma_addr_t dma_addr, size_t size);
+extern int dma_common_get_sgtable(struct device *dev, struct sg_table =
*sgt,
+				  void *cpu_addr, dma_addr_t dma_addr,
+				  size_t size);
+
+#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s=
)
+#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v,=
 h, s)
+
 #endif
--=20
1.7.0.4


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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH 8/9] parisc: Provide dma_mmap_coherent() and
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On Sun, 2013-01-13 at 11:44 +0100, Geert Uytterhoeven wrote:
> parisc/allmodconfig:
>=20
> drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=80=98=
vb2_dc_mmap=E2=80=99:
> drivers/media/v4l2-core/videobuf2-dma-contig.c:204: error: implicit d=
eclaration of function =E2=80=98dma_mmap_coherent=E2=80=99
> drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=80=98=
vb2_dc_get_base_sgt=E2=80=99:
> drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: implicit d=
eclaration of function =E2=80=98dma_get_sgtable=E2=80=99
>=20
> For architectures using dma_map_ops, dma_mmap_coherent() and
> dma_get_sgtable() are provided in <asm-generic/dma-mapping-common.h>.
>=20
> Parisc does not use dma_map_ops, hence it should implement them as in=
line
> stubs using dma_common_mmap() and dma_common_get_sgtable().
>=20
> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Cc: Marek Szyprowski <m.szyprowski@samsung.com>
> Cc: linux-parisc@vger.kernel.org
> ---
>  arch/parisc/include/asm/dma-mapping.h |   10 ++++++++++
>  1 files changed, 10 insertions(+), 0 deletions(-)
>=20
> diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/incl=
ude/asm/dma-mapping.h
> index 467bbd5..1fac0bf 100644
> --- a/arch/parisc/include/asm/dma-mapping.h
> +++ b/arch/parisc/include/asm/dma-mapping.h
> @@ -238,4 +238,14 @@ void * sba_get_iommu(struct parisc_device *dev);
>  /* At the moment, we panic on error for IOMMU resource exaustion */
>  #define dma_mapping_error(dev, x)	0
> =20
> +/* drivers/base/dma-mapping.c */
> +extern int dma_common_mmap(struct device *dev, struct vm_area_struct=
 *vma,
> +			   void *cpu_addr, dma_addr_t dma_addr, size_t size);
> +extern int dma_common_get_sgtable(struct device *dev, struct sg_tabl=
e *sgt,
> +				  void *cpu_addr, dma_addr_t dma_addr,
> +				  size_t size);
> +
> +#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h,=
 s)
> +#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, =
v, h, s)

What is the documentation around these functions?  The name sounds
suspiciously like you want a mapping of a buffer coherent between kerne=
l
and user space, which doesn't seem possible for us given the API.  We'r=
e
a VIPT architecture, so the only way we can do this is to have the
actual vma user space address be congruent with cpu_addr.  How do we do
that if the vma and kernel addresses are already fixed?

In other words, either the interface is unusable by parisc, or the
common code definitely won't work for us.

James



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On Sun, Jan 13, 2013 at 12:36 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Sun, 2013-01-13 at 11:44 +0100, Geert Uytterhoeven wrote:
>> parisc/allmodconfig:
>>
>> drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=80=98=
vb2_dc_mmap=E2=80=99:
>> drivers/media/v4l2-core/videobuf2-dma-contig.c:204: error: implicit =
declaration of function =E2=80=98dma_mmap_coherent=E2=80=99
>> drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=80=98=
vb2_dc_get_base_sgt=E2=80=99:
>> drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: implicit =
declaration of function =E2=80=98dma_get_sgtable=E2=80=99
>>
>> For architectures using dma_map_ops, dma_mmap_coherent() and
>> dma_get_sgtable() are provided in <asm-generic/dma-mapping-common.h>=
=2E
>>
>> Parisc does not use dma_map_ops, hence it should implement them as i=
nline
>> stubs using dma_common_mmap() and dma_common_get_sgtable().
>>
>> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
>> Cc: Marek Szyprowski <m.szyprowski@samsung.com>
>> Cc: linux-parisc@vger.kernel.org
>> ---
>>  arch/parisc/include/asm/dma-mapping.h |   10 ++++++++++
>>  1 files changed, 10 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/inc=
lude/asm/dma-mapping.h
>> index 467bbd5..1fac0bf 100644
>> --- a/arch/parisc/include/asm/dma-mapping.h
>> +++ b/arch/parisc/include/asm/dma-mapping.h
>> @@ -238,4 +238,14 @@ void * sba_get_iommu(struct parisc_device *dev)=
;
>>  /* At the moment, we panic on error for IOMMU resource exaustion */
>>  #define dma_mapping_error(dev, x)    0
>>
>> +/* drivers/base/dma-mapping.c */
>> +extern int dma_common_mmap(struct device *dev, struct vm_area_struc=
t *vma,
>> +                        void *cpu_addr, dma_addr_t dma_addr, size_t=
 size);
>> +extern int dma_common_get_sgtable(struct device *dev, struct sg_tab=
le *sgt,
>> +                               void *cpu_addr, dma_addr_t dma_addr,
>> +                               size_t size);
>> +
>> +#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h=
, s)
>> +#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t,=
 v, h, s)
>
> What is the documentation around these functions?  The name sounds
> suspiciously like you want a mapping of a buffer coherent between ker=
nel
> and user space, which doesn't seem possible for us given the API.  We=
're
> a VIPT architecture, so the only way we can do this is to have the
> actual vma user space address be congruent with cpu_addr.  How do we =
do
> that if the vma and kernel addresses are already fixed?

I was already afraid of this when seeing the "coherent" in the naming..=
=2E

> In other words, either the interface is unusable by parisc, or the
> common code definitely won't work for us.

So you probably want a static inline function that returns -EINVAL for =
now?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
                                -- Linus Torvalds

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On Sun, 2013-01-13 at 14:12 +0100, Geert Uytterhoeven wrote:
> On Sun, Jan 13, 2013 at 12:36 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> > On Sun, 2013-01-13 at 11:44 +0100, Geert Uytterhoeven wrote:
> >> parisc/allmodconfig:
> >>
> >> drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=80=
=98vb2_dc_mmap=E2=80=99:
> >> drivers/media/v4l2-core/videobuf2-dma-contig.c:204: error: implici=
t declaration of function =E2=80=98dma_mmap_coherent=E2=80=99
> >> drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=80=
=98vb2_dc_get_base_sgt=E2=80=99:
> >> drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: implici=
t declaration of function =E2=80=98dma_get_sgtable=E2=80=99
> >>
> >> For architectures using dma_map_ops, dma_mmap_coherent() and
> >> dma_get_sgtable() are provided in <asm-generic/dma-mapping-common.=
h>.
> >>
> >> Parisc does not use dma_map_ops, hence it should implement them as=
 inline
> >> stubs using dma_common_mmap() and dma_common_get_sgtable().
> >>
> >> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
> >> Cc: Marek Szyprowski <m.szyprowski@samsung.com>
> >> Cc: linux-parisc@vger.kernel.org
> >> ---
> >>  arch/parisc/include/asm/dma-mapping.h |   10 ++++++++++
> >>  1 files changed, 10 insertions(+), 0 deletions(-)
> >>
> >> diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/i=
nclude/asm/dma-mapping.h
> >> index 467bbd5..1fac0bf 100644
> >> --- a/arch/parisc/include/asm/dma-mapping.h
> >> +++ b/arch/parisc/include/asm/dma-mapping.h
> >> @@ -238,4 +238,14 @@ void * sba_get_iommu(struct parisc_device *de=
v);
> >>  /* At the moment, we panic on error for IOMMU resource exaustion =
*/
> >>  #define dma_mapping_error(dev, x)    0
> >>
> >> +/* drivers/base/dma-mapping.c */
> >> +extern int dma_common_mmap(struct device *dev, struct vm_area_str=
uct *vma,
> >> +                        void *cpu_addr, dma_addr_t dma_addr, size=
_t size);
> >> +extern int dma_common_get_sgtable(struct device *dev, struct sg_t=
able *sgt,
> >> +                               void *cpu_addr, dma_addr_t dma_add=
r,
> >> +                               size_t size);
> >> +
> >> +#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c,=
 h, s)
> >> +#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, =
t, v, h, s)
> >
> > What is the documentation around these functions?  The name sounds
> > suspiciously like you want a mapping of a buffer coherent between k=
ernel
> > and user space, which doesn't seem possible for us given the API.  =
We're
> > a VIPT architecture, so the only way we can do this is to have the
> > actual vma user space address be congruent with cpu_addr.  How do w=
e do
> > that if the vma and kernel addresses are already fixed?
>=20
> I was already afraid of this when seeing the "coherent" in the naming=
=2E..

Afraid of what, that the interface won't actually work for VIPT or that
we need special functions?

We won't be the only ones: MIPS at least will have this issue.

But I would like to clear up whether we can actually use this on PA or
not.

> > In other words, either the interface is unusable by parisc, or the
> > common code definitely won't work for us.
>=20
> So you probably want a static inline function that returns -EINVAL fo=
r now?

Yes, that should work (provided the consumers handle the return code
correctly).

James



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Subject: Re: [PATCH 8/9] parisc: Provide dma_mmap_coherent() and dma_get_sgtable()
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On Sun, Jan 13, 2013 at 2:49 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Sun, 2013-01-13 at 14:12 +0100, Geert Uytterhoeven wrote:
>> On Sun, Jan 13, 2013 at 12:36 PM, James Bottomley
>> <James.Bottomley@hansenpartnership.com> wrote:
>> > On Sun, 2013-01-13 at 11:44 +0100, Geert Uytterhoeven wrote:
>> >> parisc/allmodconfig:
>> >>
>> >> drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=80=
=98vb2_dc_mmap=E2=80=99:
>> >> drivers/media/v4l2-core/videobuf2-dma-contig.c:204: error: implic=
it declaration of function =E2=80=98dma_mmap_coherent=E2=80=99
>> >> drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=80=
=98vb2_dc_get_base_sgt=E2=80=99:
>> >> drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: implic=
it declaration of function =E2=80=98dma_get_sgtable=E2=80=99
>> >>
>> >> For architectures using dma_map_ops, dma_mmap_coherent() and
>> >> dma_get_sgtable() are provided in <asm-generic/dma-mapping-common=
=2Eh>.
>> >>
>> >> Parisc does not use dma_map_ops, hence it should implement them a=
s inline
>> >> stubs using dma_common_mmap() and dma_common_get_sgtable().
>> >>
>> >> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
>> >> Cc: Marek Szyprowski <m.szyprowski@samsung.com>
>> >> Cc: linux-parisc@vger.kernel.org
>> >> ---
>> >>  arch/parisc/include/asm/dma-mapping.h |   10 ++++++++++
>> >>  1 files changed, 10 insertions(+), 0 deletions(-)
>> >>
>> >> diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/=
include/asm/dma-mapping.h
>> >> index 467bbd5..1fac0bf 100644
>> >> --- a/arch/parisc/include/asm/dma-mapping.h
>> >> +++ b/arch/parisc/include/asm/dma-mapping.h
>> >> @@ -238,4 +238,14 @@ void * sba_get_iommu(struct parisc_device *d=
ev);
>> >>  /* At the moment, we panic on error for IOMMU resource exaustion=
 */
>> >>  #define dma_mapping_error(dev, x)    0
>> >>
>> >> +/* drivers/base/dma-mapping.c */
>> >> +extern int dma_common_mmap(struct device *dev, struct vm_area_st=
ruct *vma,
>> >> +                        void *cpu_addr, dma_addr_t dma_addr, siz=
e_t size);
>> >> +extern int dma_common_get_sgtable(struct device *dev, struct sg_=
table *sgt,
>> >> +                               void *cpu_addr, dma_addr_t dma_ad=
dr,
>> >> +                               size_t size);
>> >> +
>> >> +#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c=
, h, s)
>> >> +#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d,=
 t, v, h, s)
>> >
>> > What is the documentation around these functions?  The name sounds
>> > suspiciously like you want a mapping of a buffer coherent between =
kernel
>> > and user space, which doesn't seem possible for us given the API. =
 We're
>> > a VIPT architecture, so the only way we can do this is to have the
>> > actual vma user space address be congruent with cpu_addr.  How do =
we do
>> > that if the vma and kernel addresses are already fixed?
>>
>> I was already afraid of this when seeing the "coherent" in the namin=
g...
>
> Afraid of what, that the interface won't actually work for VIPT or th=
at
> we need special functions?

That it wouldn't work on parisc.

> We won't be the only ones: MIPS at least will have this issue.

MIPS uses <asm-generic/dma-mapping-common.h>, BUT has some ugly
#ifdefery in sound/core/pcm_native.c:snd_pcm_lib_default_mmap().

BTW, does current ALSA mmap() work on parisc?

> But I would like to clear up whether we can actually use this on PA o=
r
> not.
>
>> > In other words, either the interface is unusable by parisc, or the
>> > common code definitely won't work for us.
>>
>> So you probably want a static inline function that returns -EINVAL f=
or now?
>
> Yes, that should work (provided the consumers handle the return code
> correctly).

OK. Let's wait (for Marek's documentation) and see whether we can fix i=
t
for real in 3.8, or have to resort to -EINVAL.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
                                -- Linus Torvalds

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH 8/9] parisc: Provide dma_mmap_coherent() and
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On Sun, 2013-01-13 at 15:52 +0100, Geert Uytterhoeven wrote:
> On Sun, Jan 13, 2013 at 2:49 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> > On Sun, 2013-01-13 at 14:12 +0100, Geert Uytterhoeven wrote:
> >> On Sun, Jan 13, 2013 at 12:36 PM, James Bottomley
> >> <James.Bottomley@hansenpartnership.com> wrote:
> >> > On Sun, 2013-01-13 at 11:44 +0100, Geert Uytterhoeven wrote:
> >> >> parisc/allmodconfig:
> >> >>
> >> >> drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=
=80=98vb2_dc_mmap=E2=80=99:
> >> >> drivers/media/v4l2-core/videobuf2-dma-contig.c:204: error: impl=
icit declaration of function =E2=80=98dma_mmap_coherent=E2=80=99
> >> >> drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=
=80=98vb2_dc_get_base_sgt=E2=80=99:
> >> >> drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: impl=
icit declaration of function =E2=80=98dma_get_sgtable=E2=80=99
> >> >>
> >> >> For architectures using dma_map_ops, dma_mmap_coherent() and
> >> >> dma_get_sgtable() are provided in <asm-generic/dma-mapping-comm=
on.h>.
> >> >>
> >> >> Parisc does not use dma_map_ops, hence it should implement them=
 as inline
> >> >> stubs using dma_common_mmap() and dma_common_get_sgtable().
> >> >>
> >> >> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
> >> >> Cc: Marek Szyprowski <m.szyprowski@samsung.com>
> >> >> Cc: linux-parisc@vger.kernel.org
> >> >> ---
> >> >>  arch/parisc/include/asm/dma-mapping.h |   10 ++++++++++
> >> >>  1 files changed, 10 insertions(+), 0 deletions(-)
> >> >>
> >> >> diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/paris=
c/include/asm/dma-mapping.h
> >> >> index 467bbd5..1fac0bf 100644
> >> >> --- a/arch/parisc/include/asm/dma-mapping.h
> >> >> +++ b/arch/parisc/include/asm/dma-mapping.h
> >> >> @@ -238,4 +238,14 @@ void * sba_get_iommu(struct parisc_device =
*dev);
> >> >>  /* At the moment, we panic on error for IOMMU resource exausti=
on */
> >> >>  #define dma_mapping_error(dev, x)    0
> >> >>
> >> >> +/* drivers/base/dma-mapping.c */
> >> >> +extern int dma_common_mmap(struct device *dev, struct vm_area_=
struct *vma,
> >> >> +                        void *cpu_addr, dma_addr_t dma_addr, s=
ize_t size);
> >> >> +extern int dma_common_get_sgtable(struct device *dev, struct s=
g_table *sgt,
> >> >> +                               void *cpu_addr, dma_addr_t dma_=
addr,
> >> >> +                               size_t size);
> >> >> +
> >> >> +#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v,=
 c, h, s)
> >> >> +#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(=
d, t, v, h, s)
> >> >
> >> > What is the documentation around these functions?  The name soun=
ds
> >> > suspiciously like you want a mapping of a buffer coherent betwee=
n kernel
> >> > and user space, which doesn't seem possible for us given the API=
=2E  We're
> >> > a VIPT architecture, so the only way we can do this is to have t=
he
> >> > actual vma user space address be congruent with cpu_addr.  How d=
o we do
> >> > that if the vma and kernel addresses are already fixed?
> >>
> >> I was already afraid of this when seeing the "coherent" in the nam=
ing...
> >
> > Afraid of what, that the interface won't actually work for VIPT or =
that
> > we need special functions?
>=20
> That it wouldn't work on parisc.

Hmm, so that would seem to be a serious deficiency with the API then.

> > We won't be the only ones: MIPS at least will have this issue.
>=20
> MIPS uses <asm-generic/dma-mapping-common.h>, BUT has some ugly
> #ifdefery in sound/core/pcm_native.c:snd_pcm_lib_default_mmap().
>=20
> BTW, does current ALSA mmap() work on parisc?

Yes, we used to have the same #ifdeffery, but in the alsa core ... I
can't remember how we fixed it for our two sound drivers (harmony and
AD1889).

> > But I would like to clear up whether we can actually use this on PA=
 or
> > not.
> >
> >> > In other words, either the interface is unusable by parisc, or t=
he
> >> > common code definitely won't work for us.
> >>
> >> So you probably want a static inline function that returns -EINVAL=
 for now?
> >
> > Yes, that should work (provided the consumers handle the return cod=
e
> > correctly).
>=20
> OK. Let's wait (for Marek's documentation) and see whether we can fix=
 it
> for real in 3.8, or have to resort to -EINVAL.

The way we could fix this is by altering the kernel CPU address, using =
a
kmap area, so we have to change the virtual address by which the kernel
refers to this page to be coherent with user space, but the API is two
narrow to allow that, so perhaps we need to redesign how the API works.

James



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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Purge existing TLB entries in set_pte_at and ptep_set_wrprotect
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	"James E.J. Bottomley" <jejb@parisc-linux.org>
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This patch goes a long way toward fixing the minifail bug, and it  
significantly
improves the stability of SMP machines such as the rp3440.  When write  
protecting
a page for COW, we need to purge the existing translation.  Otherwise,  
the COW
break doesn't occur as expected.

The patch assumes the kernel will flush page when it does copy.

Signed-off-by: John David Anglin <dave.anglin@bell.net>


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diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index ee99f23..2c6dedb 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -12,11 +12,10 @@
 
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
+#include <linux/mm_types.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
-struct vm_area_struct;
-
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -40,7 +39,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm,addr,ptep, pteval)                        \
+        do{                                                     \
+                set_pte(ptep,pteval);                           \
+                purge_tlb_entries(mm,addr);                     \
+        } while(0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -466,6 +472,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 48e16dc..467d902 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -419,6 +419,26 @@ void kunmap_parisc(void *addr)
 EXPORT_SYMBOL(kunmap_parisc);
 #endif
 
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags, sid;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	/* Disable preemption while we play with %sr1.  */
+	preempt_disable();
+	sid = mfsp(1);
+	mtsp(mm->context,1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+	mtsp(sid,1);
+	preempt_enable();
+}
+EXPORT_SYMBOL(purge_tlb_entries);
+
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {

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Dave
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATC] parisc: Remove IRQF_DISABLED
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This patch removes IRQF_DISABLED from irq.c.  See comment in  
interrupt.h:

  * IRQF_DISABLED - keep irqs disabled when calling the action handler.
  *                 DEPRECATED. This flag is a NOOP and scheduled to  
be removed

Signed-off-by: John David Anglin <dave.anglin@bell.net>


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diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 0299d63..8094d3e 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
-	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+	.flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
-	.flags = IRQF_DISABLED | IRQF_PERCPU,
+	.flags = IRQF_PERCPU,
 };
 #endif
 

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Subject: [PATCH] parisc: Fix comment describing setup of access rights in entry.S
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This comment describes incredibly subtle code, so it should be right!

Signed-off-by: John David Anglin <dave.anglin@bell.net>


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diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index eb7850b..7c96489 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -483,7 +483,7 @@
 	 * B <-> _PAGE_DMB (memory break)
 	 *
 	 * Then incredible subtlety: The access rights are
-	 * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
+	 * _PAGE_GATEWAY, _PAGE_EXEC and _PAGE_WRITE
 	 * See 3-14 of the parisc 2.0 manual
 	 *
 	 * Finally, _PAGE_READ goes in the top bit of PL1 (so we
@@ -493,7 +493,7 @@
 
 	/* PAGE_USER indicates the page can be read with user privileges,
 	 * so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1
-	 * contains _PAGE_READ */
+	 * contains _PAGE_READ) */
 	extrd,u,*=      \pte,_PAGE_USER_BIT+32,1,%r0
 	depdi		7,11,3,\prot
 	/* If we're a gateway page, drop PL2 back to zero for promotion

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Someone mentioned several months ago that compat_rt_sigframe.h was not  
used anywhere.
Removing it works for me.

Signed-off-by: John David Anglin <dave.anglin@bell.net>



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diff --git a/arch/parisc/include/asm/compat_rt_sigframe.h b/arch/parisc/include/asm/compat_rt_sigframe.h
deleted file mode 100644
index b3f95a7..0000000
--- a/arch/parisc/include/asm/compat_rt_sigframe.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#include <linux/compat.h>
-#include <linux/compat_siginfo.h>
-#include <asm/compat_ucontext.h>
-
-#ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-#define _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-
-/* In a deft move of uber-hackery, we decide to carry the top half of all
- * 64-bit registers in a non-portable, non-ABI, hidden structure.
- * Userspace can read the hidden structure if it *wants* but is never
- * guaranteed to be in the same place. Infact the uc_sigmask from the 
- * ucontext_t structure may push the hidden register file downards
- */
-struct compat_regfile {
-	/* Upper half of all the 64-bit registers that were truncated
-	   on a copy to a 32-bit userspace */
-	compat_int_t rf_gr[32];
-	compat_int_t rf_iasq[2];
-	compat_int_t rf_iaoq[2];
-	compat_int_t rf_sar;
-};
-
-#define COMPAT_SIGRETURN_TRAMP 4
-#define COMPAT_SIGRESTARTBLOCK_TRAMP 5 
-#define COMPAT_TRAMP_SIZE (COMPAT_SIGRETURN_TRAMP + COMPAT_SIGRESTARTBLOCK_TRAMP)
-
-struct compat_rt_sigframe {
-	/* XXX: Must match trampoline size in arch/parisc/kernel/signal.c 
-	        Secondary to that it must protect the ERESTART_RESTARTBLOCK
-		trampoline we left on the stack (we were bad and didn't 
-		change sp so we could run really fast.) */
-	compat_uint_t tramp[COMPAT_TRAMP_SIZE];
-	compat_siginfo_t info;
-	struct compat_ucontext uc;
-	/* Hidden location of truncated registers, *must* be last. */
-	struct compat_regfile regs; 
-};
-
-/*
- * The 32-bit ABI wants at least 48 bytes for a function call frame:
- * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of
- * which Linux/parisc uses is sp-20 for the saved return pointer...)
- * Then, the stack pointer must be rounded to a cache line (64 bytes).
- */
-#define SIGFRAME32		64
-#define FUNCTIONCALLFRAME32	48
-#define PARISC_RT_SIGFRAME_SIZE32					\
-	(((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)

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Subject: Re: [PATCH] parisc: Purge existing TLB entries in
 =?UTF-8?Q?set=5Fpte=5Fat=20and=20ptep=5Fset=5Fwrprotect?=
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Am 13.01.2013 22:52, schrieb John David Anglin:
> This patch goes a long way toward fixing the minifail bug, and it  
> significantly
> improves the stability of SMP machines such as the rp3440.  When
> write  protecting
> a page for COW, we need to purge the existing translation.  
> Otherwise,  the COW
> break doesn't occur as expected.
>
> The patch assumes the kernel will flush page when it does copy.
>
> Signed-off-by: John David Anglin <dave.anglin@bell.net>

CC stable?
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From - Thu Nov 08 21:08:51 2018
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Subject: Re: [PATCH] parisc: Purge existing TLB entries in set_pte_at and
 ptep_set_wrprotect
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On Sun, 2013-01-13 at 16:52 -0500, John David Anglin wrote:

> +void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
> +{
> +       unsigned long flags, sid;
> +
> +       /* Note: purge_tlb_entries can be called at startup with
> +          no context.  */
> +
> +       /* Disable preemption while we play with %sr1.  */
> +       preempt_disable();
> +       sid = mfsp(1);
> 
There's no need at all to save and restore %sr1 is there?  It's defined
to be a volatile register.  As long as you make sure nothing gets in to
change its value, you never need to restore the previous one.

James
> 
> +       mtsp(mm->context,1);
> +       purge_tlb_start(flags);
> +       pdtlb(addr);
> +       pitlb(addr);
> +       purge_tlb_end(flags);
> +       mtsp(sid,1);
> +       preempt_enable();
> +}

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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Purge existing TLB entries in set_pte_at and ptep_set_wrprotect - take 2
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Attached is new version of patch which no longer saves and restores  
%sr1.  Lightly tested with a GCC build
and a build of Debian gtk+3.0 package.

Signed-off-by: John David Anglin <dave.anglin@bell.net>


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diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index ee99f23..2c6dedb 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -12,11 +12,10 @@
 
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
+#include <linux/mm_types.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
-struct vm_area_struct;
-
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -40,7 +39,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm,addr,ptep, pteval)                        \
+        do{                                                     \
+                set_pte(ptep,pteval);                           \
+                purge_tlb_entries(mm,addr);                     \
+        } while(0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -466,6 +472,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 48e16dc..1524fd8 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -419,6 +419,24 @@ void kunmap_parisc(void *addr)
 EXPORT_SYMBOL(kunmap_parisc);
 #endif
 
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	/* Disable preemption while we play with %sr1.  */
+	preempt_disable();
+	mtsp(mm->context,1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+	preempt_enable();
+}
+EXPORT_SYMBOL(purge_tlb_entries);
+
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {

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Dave
--
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On Mon, 2013-01-14 at 19:45 -0500, John David Anglin wrote:
> Attached is new version of patch which no longer saves and restores  
> %sr1.  Lightly tested with a GCC build
> and a build of Debian gtk+3.0 package.

I can merge it with your previous changelog, but for ease of git users,
the accepted format is

<patch description for git>

---

<Any other details you don't want in git>

git ignores everything after the three dashes on a single line.

So your preamble should be (I also added an explanation of why we think
the problem is occurring):

This patch goes a long way toward fixing the minifail bug, and
it  significantly improves the stability of SMP machines such as
the rp3440.  When write  protecting a page for COW, we need to
purge the existing translation.  Otherwise, the COW break
doesn't occur as expected because the TLB may still have a stale entry
which allows writes.

Signed-off-by: John David Anglin <dave.anglin@bell.net>

---

v2: Attached is new version of patch which no longer saves and
restores  %sr1.  Lightly tested with a GCC build and a build of
Debian gtk+3.0 package.

James




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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.cross-arch
Subject: Re: [RESEND PATCH] sysctl: Enable PARISC "unaligned-trap" to be used
 cross-arch
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	linux-arch@vger.kernel.org, arnd@arndb.de,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Serge Hallyn <serge.hallyn@canonical.com>
To: Vineet Gupta <Vineet.Gupta1@synopsys.com>
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On 01/03/2013 07:59 AM, Vineet Gupta wrote:
> PARISC defines /proc/sys/kernel/unaligned-trap to runtime toggle
> unaligned access emulation.
>
> The exact mechanics of enablig/disabling are still arch specific, we can
> make the sysctl usable by other arches.
>
> Signed-off-by: Vineet Gupta<vgupta@synopsys.com>
> Cc: "James E.J. Bottomley"<jejb@parisc-linux.org>
> Cc: Helge Deller<deller@gmx.de>
> Cc: "Eric W. Biederman"<ebiederm@xmission.com>
> Cc: Serge Hallyn<serge.hallyn@canonical.com>

Acked-by: Helge Deller <deller@gmx.de>

Vineet, as discussed, please push it through the ARC architecture tree...

Helge

> ---
>   arch/parisc/Kconfig |    1 +
>   init/Kconfig        |    8 ++++++++
>   kernel/sysctl.c     |    7 ++++++-
>   3 files changed, 15 insertions(+), 1 deletions(-)
>
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index b77feff..8c76095 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -20,6 +20,7 @@ config PARISC
>   	select ARCH_HAVE_NMI_SAFE_CMPXCHG
>   	select GENERIC_SMP_IDLE_THREAD
>   	select GENERIC_STRNCPY_FROM_USER
> +	select SYSCTL_ARCH_UNALIGN_ALLOW
>   	select HAVE_MOD_ARCH_SPECIFIC
>   	select MODULES_USE_ELF_RELA
>   	select CLONE_BACKWARDS
> diff --git a/init/Kconfig b/init/Kconfig
> index e188f9f..e64bb18 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -1240,6 +1240,14 @@ config SYSCTL_ARCH_UNALIGN_NO_WARN
>   	  unaligned access emulation going on under the hood.
>   	  see arch/ia64/kernel/unaligned.c for reference
>
> +config SYSCTL_ARCH_UNALIGN_ALLOW
> +	bool
> +	help
> +	  Enable support for /proc/sys/kernel/unaligned-trap
> +	  Allows arches to define/use @unaligned_enabled to runtime toggle
> +	  the unaligned access emulation.
> +	  see arch/parisc/kernel/unaligned.c for reference
> +
>   config KALLSYMS
>   	 bool "Load all symbols for debugging/ksymoops" if EXPERT
>   	 default y
> diff --git a/kernel/sysctl.c b/kernel/sysctl.c
> index 840fd5e..c4cd655 100644
> --- a/kernel/sysctl.c
> +++ b/kernel/sysctl.c
> @@ -157,13 +157,16 @@ extern int sysctl_tsb_ratio;
>
>   #ifdef __hppa__
>   extern int pwrsw_enabled;
> -extern int unaligned_enabled;
>   #endif
>
>   #ifdef CONFIG_IA64
>   extern int unaligned_dump_stack;
>   #endif
>
> +#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW
> +extern int unaligned_enabled;
> +#endif
> +
>   #ifdef CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN
>   extern int no_unaligned_warning;
>   #endif
> @@ -548,6 +551,8 @@ static struct ctl_table kern_table[] = {
>   	 	.mode		= 0644,
>   		.proc_handler	= proc_dointvec,
>   	},
> +#endif
> +#ifdef CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW
>   	{
>   		.procname	= "unaligned-trap",
>   		.data		=&unaligned_enabled,

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James Bottomley wrote:
> On Mon, 2013-01-14 at 19:45 -0500, John David Anglin wrote:
> > Attached is new version of patch which no longer saves and restores
> > %sr1.  Lightly tested with a GCC build
> > and a build of Debian gtk+3.0 package.
> 
> I can merge it with your previous changelog, but for ease of git users,
> the accepted format is

> v2: Attached is new version of patch which no longer saves and
> restores  %sr1.  Lightly tested with a GCC build and a build of
> Debian gtk+3.0 package.

Do we want that to go back into stable kernels?

Eike
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Hi Rolf,

On 01/16/2013 10:44 PM, Rolf Eike Beer wrote:
> James Bottomley wrote:
>> On Mon, 2013-01-14 at 19:45 -0500, John David Anglin wrote:
>>> Attached is new version of patch which no longer saves and restores
>>> %sr1.  Lightly tested with a GCC build
>>> and a build of Debian gtk+3.0 package.
>>
>> I can merge it with your previous changelog, but for ease of git users,
>> the accepted format is
> 
>> v2: Attached is new version of patch which no longer saves and
>> restores  %sr1.  Lightly tested with a GCC build and a build of
>> Debian gtk+3.0 package.
> 
> Do we want that to go back into stable kernels?

Short answer: Yes.

Long answer:
First we need those patches upstream - which is what did not happened yet.
Then I wanted to take a look what we can send to stable.

Helge
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc fixes for v3.8-rc5
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To: Linus <torvalds@linux-foundation.org>,
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Hi Linus,

please consider pulling the following 4 patches for 3.8-rc5 which improve
the stability of the linux kernel on the parisc architecture.

Only parisc arch-specfic files are changed.

Thanks,
Helge  


The following changes since commit d287b8750e47c1702dab0e37ac11012bb751ece0:

  Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs (2013-01-07 09:41:20 -0800)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git for-linus


----------------------------------------------------------------
John David Anglin (4):
      parisc: avoid undefined shift in cnv_float.h
      parisc: don't claim cpu irqs more than once
      parisc: improve ptrace support for gdb single-step
      parisc: sigaltstack doesn't round ss.ss_sp as required

 arch/parisc/kernel/entry.S       | 18 +++++++++++++-----
 arch/parisc/kernel/irq.c         |  6 ++++--
 arch/parisc/kernel/ptrace.c      |  2 +-
 arch/parisc/kernel/signal.c      |  4 +++-
 arch/parisc/math-emu/cnv_float.h | 11 +++++------
 5 files changed, 26 insertions(+), 15 deletions(-)

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From: dann frazier <dannf@dannf.org>
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Subject: Re: decommissioning parisc-linux.org
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Cc: Thibaut VARENE <T-Bone@parisc-linux.org>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Tue, Feb 14, 2012 at 01:33:48PM -0500, Carlos O'Donell wrote:
> On Tue, Feb 14, 2012 at 1:31 PM, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> > It looks to me like this burden clearly outweighs the benefits of
> > being selfhosted, so maybe the right move is to use a supported
> > architecture for hosting the website? Given the "audience" for
> > linux-parisc, I don't think it would make a significant difference...
> 
> I tend to agree. Use the right tool for the right job.
> 
> Fun hacking = HPPA.
> 
> Serve the website = x86.

fyi, the subnet on which palinux (aka parisc-linux.org) is hosted will
be going away at the end of February. This sounds like a good target
date for the move :)
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From - Thu Nov 08 21:08:51 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: decommissioning parisc-linux.org
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On 23-Jan-13, at 4:17 PM, dann frazier wrote:

> On Tue, Feb 14, 2012 at 01:33:48PM -0500, Carlos O'Donell wrote:
>> On Tue, Feb 14, 2012 at 1:31 PM, Thibaut VARENE <T-Bone@parisc-linux.org 
>> > wrote:
>>> It looks to me like this burden clearly outweighs the benefits of
>>> being selfhosted, so maybe the right move is to use a supported
>>> architecture for hosting the website? Given the "audience" for
>>> linux-parisc, I don't think it would make a significant  
>>> difference...
>>
>> I tend to agree. Use the right tool for the right job.
>>
>> Fun hacking = HPPA.
>>
>> Serve the website = x86.
>
> fyi, the subnet on which palinux (aka parisc-linux.org) is hosted will
> be going away at the end of February. This sounds like a good target
> date for the move :)

There are a few people who still use the domain for parisc related mail.
James Bottomley is the most active.  Hopefully, this will also get moved
with the website.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:08:51 2018
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From: dann frazier <dannf@dannf.org>
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To: John David Anglin <dave.anglin@bell.net>
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On Wed, Jan 23, 2013 at 06:14:01PM -0500, John David Anglin wrote:
> On 23-Jan-13, at 4:17 PM, dann frazier wrote:
> 
> >On Tue, Feb 14, 2012 at 01:33:48PM -0500, Carlos O'Donell wrote:
> >>On Tue, Feb 14, 2012 at 1:31 PM, Thibaut VARENE
> >><T-Bone@parisc-linux.org> wrote:
> >>>It looks to me like this burden clearly outweighs the benefits of
> >>>being selfhosted, so maybe the right move is to use a supported
> >>>architecture for hosting the website? Given the "audience" for
> >>>linux-parisc, I don't think it would make a significant
> >>>difference...
> >>
> >>I tend to agree. Use the right tool for the right job.
> >>
> >>Fun hacking = HPPA.
> >>
> >>Serve the website = x86.
> >
> >fyi, the subnet on which palinux (aka parisc-linux.org) is hosted will
> >be going away at the end of February. This sounds like a good target
> >date for the move :)
> 
> There are a few people who still use the domain for parisc related mail.
> James Bottomley is the most active.  Hopefully, this will also get moved
> with the website.

Yeah, I agree - it just needs somewhere to move to first :)

We can also just point the MX somewhere else, if there's a good
mail hosting option that doesn't want to host the website.

Note that it sounds like HP might be willing to move the system to a
new DC, re-IP and basically run it till something fails. But that's an
inevitable eventuality, and at that point it becomes an emergency.
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From - Thu Nov 08 21:08:51 2018
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Xref: news.gmane.org gmane.linux.kernel.mm:93858 gmane.linux.kernel:1428148 gmane.linux.ports.ppc64.devel:87328 gmane.linux.ports.parisc:4751 gmane.linux.ports.alpha:2003 gmane.linux.ports.ia64:22952
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93858>

This is a resend of my "finish the mission" patch series. I need arch
maintainers to approve so I can push this to andrew's -mm tree.

These patches, which apply on top of v3.8-rc kernels, are to complete the
VMA gap finding code I introduced (following Rik's initial proposal) in
v3.8-rc1.

First 5 patches introduce the use of vm_unmapped_area() to replace brute
force searches on parisc, alpha, frv and ia64 architectures (all relatively
trivial uses of the vm_unmapped_area() infrastructure)

Next 2 patches do the same as above for the powerpc architecture. This
change is not as trivial as for the other architectures, because we
need to account for each address space slice potentially having a
different page size.

The last patch removes the free_area_cache, which was used by all the
brute force searches before they got converted to the
vm_unmapped_area() infrastructure.

I did some basic testing on x86 and powerpc; however the first 5 (simpler)
patches for parisc, alpha, frv and ia64 architectures are untested.

Michel Lespinasse (8):
  mm: use vm_unmapped_area() on parisc architecture
  mm: use vm_unmapped_area() on alpha architecture
  mm: use vm_unmapped_area() on frv architecture
  mm: use vm_unmapped_area() on ia64 architecture
  mm: use vm_unmapped_area() in hugetlbfs on ia64 architecture
  mm: remove free_area_cache use in powerpc architecture
  mm: use vm_unmapped_area() on powerpc architecture
  mm: remove free_area_cache

 arch/alpha/kernel/osf_sys.c              |   20 ++--
 arch/arm/mm/mmap.c                       |    2 -
 arch/arm64/mm/mmap.c                     |    2 -
 arch/frv/mm/elf-fdpic.c                  |   49 +++----
 arch/ia64/kernel/sys_ia64.c              |   37 ++----
 arch/ia64/mm/hugetlbpage.c               |   20 ++--
 arch/mips/mm/mmap.c                      |    2 -
 arch/parisc/kernel/sys_parisc.c          |   46 +++----
 arch/powerpc/include/asm/page_64.h       |    3 +-
 arch/powerpc/mm/hugetlbpage.c            |    2 +-
 arch/powerpc/mm/mmap_64.c                |    2 -
 arch/powerpc/mm/slice.c                  |  228 +++++++++++++-----------------
 arch/powerpc/platforms/cell/spufs/file.c |    2 +-
 arch/s390/mm/mmap.c                      |    4 -
 arch/sparc/kernel/sys_sparc_64.c         |    2 -
 arch/tile/mm/mmap.c                      |    2 -
 arch/x86/ia32/ia32_aout.c                |    2 -
 arch/x86/mm/mmap.c                       |    2 -
 fs/binfmt_aout.c                         |    2 -
 fs/binfmt_elf.c                          |    2 -
 include/linux/mm_types.h                 |    3 -
 include/linux/sched.h                    |    2 -
 kernel/fork.c                            |    4 -
 mm/mmap.c                                |   28 ----
 mm/nommu.c                               |    4 -
 mm/util.c                                |    1 -
 26 files changed, 163 insertions(+), 310 deletions(-)

-- 
1.7.7.3

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From - Thu Nov 08 21:08:51 2018
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From: Michel Lespinasse <walken@google.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ia64
Subject: [PATCH 1/8] mm: use vm_unmapped_area() on parisc architecture
Date: Wed, 23 Jan 2013 17:29:44 -0800
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Approved: news@gmane.org
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To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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	Helge Deller <deller@gmx.de>,
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	Matt Turner <mattst88@gmail.com>,
	David Howells <dhowells@redhat.com>,
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Xref: news.gmane.org gmane.linux.kernel.mm:93859 gmane.linux.kernel:1428149 gmane.linux.ports.ppc64.devel:87329 gmane.linux.ports.parisc:4752 gmane.linux.ports.alpha:2004 gmane.linux.ports.ia64:22953
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93859>

Update the parisc arch_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.

Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Rik van Riel <riel@redhat.com>

---
 arch/parisc/kernel/sys_parisc.c |   46 ++++++++++++++------------------------
 1 files changed, 17 insertions(+), 29 deletions(-)

diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index f76c10863c62..6ab138088076 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -35,18 +35,15 @@
 
 static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
 {
-	struct vm_area_struct *vma;
+	struct vm_unmapped_area_info info;
 
-	addr = PAGE_ALIGN(addr);
-
-	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
-		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (TASK_SIZE - len < addr)
-			return -ENOMEM;
-		if (!vma || addr + len <= vma->vm_start)
-			return addr;
-		addr = vma->vm_end;
-	}
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = PAGE_ALIGN(addr);
+	info.high_limit = TASK_SIZE;
+	info.align_mask = 0;
+	info.align_offset = 0;
+	return vm_unmapped_area(&info);
 }
 
 #define DCACHE_ALIGN(addr) (((addr) + (SHMLBA - 1)) &~ (SHMLBA - 1))
@@ -63,30 +60,21 @@ static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
  */
 static int get_offset(struct address_space *mapping)
 {
-	int offset = (unsigned long) mapping << (PAGE_SHIFT - 8);
-	return offset & 0x3FF000;
+	return (unsigned long) mapping >> 8;
 }
 
 static unsigned long get_shared_area(struct address_space *mapping,
 		unsigned long addr, unsigned long len, unsigned long pgoff)
 {
-	struct vm_area_struct *vma;
-	int offset = mapping ? get_offset(mapping) : 0;
-
-	offset = (offset + (pgoff << PAGE_SHIFT)) & 0x3FF000;
+	struct vm_unmapped_area_info info;
 
-	addr = DCACHE_ALIGN(addr - offset) + offset;
-
-	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
-		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (TASK_SIZE - len < addr)
-			return -ENOMEM;
-		if (!vma || addr + len <= vma->vm_start)
-			return addr;
-		addr = DCACHE_ALIGN(vma->vm_end - offset) + offset;
-		if (addr < vma->vm_end) /* handle wraparound */
-			return -ENOMEM;
-	}
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = PAGE_ALIGN(addr);
+	info.high_limit = TASK_SIZE;
+	info.align_mask = PAGE_MASK & (SHMLBA - 1);
+	info.align_offset = (get_offset(mapping) + pgoff) << PAGE_SHIFT;
+	return vm_unmapped_area(&info);
 }
 
 unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
-- 
1.7.7.3

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X-Mozilla-Keys:                                                                                 
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From: Michel Lespinasse <walken@google.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ia64
Subject: [PATCH 2/8] mm: use vm_unmapped_area() on alpha architecture
Date: Wed, 23 Jan 2013 17:29:45 -0800
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Xref: news.gmane.org gmane.linux.kernel.mm:93860 gmane.linux.kernel:1428150 gmane.linux.ports.ppc64.devel:87330 gmane.linux.ports.parisc:4753 gmane.linux.ports.alpha:2005 gmane.linux.ports.ia64:22954
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93860>

Update the alpha arch_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.

Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Rik van Riel <riel@redhat.com>

---
 arch/alpha/kernel/osf_sys.c |   20 +++++++++-----------
 1 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 14db93e4c8a8..ba707e23ef37 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1298,17 +1298,15 @@ static unsigned long
 arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
 		         unsigned long limit)
 {
-	struct vm_area_struct *vma = find_vma(current->mm, addr);
-
-	while (1) {
-		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (limit - len < addr)
-			return -ENOMEM;
-		if (!vma || addr + len <= vma->vm_start)
-			return addr;
-		addr = vma->vm_end;
-		vma = vma->vm_next;
-	}
+	struct vm_unmapped_area_info info;
+
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = addr;
+	info.high_limit = limit;
+	info.align_mask = 0;
+	info.align_offset = 0;
+	return vm_unmapped_area(&info);
 }
 
 unsigned long
-- 
1.7.7.3

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From - Thu Nov 08 21:08:52 2018
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From: Michel Lespinasse <walken@google.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ia64
Subject: [PATCH 3/8] mm: use vm_unmapped_area() on frv architecture
Date: Wed, 23 Jan 2013 17:29:46 -0800
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Xref: news.gmane.org gmane.linux.kernel.mm:93861 gmane.linux.kernel:1428151 gmane.linux.ports.ppc64.devel:87331 gmane.linux.ports.parisc:4754 gmane.linux.ports.alpha:2006 gmane.linux.ports.ia64:22955
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93861>

Update the frv arch_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.

Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Rik van Riel <riel@redhat.com>

---
 arch/frv/mm/elf-fdpic.c |   49 ++++++++++++++++------------------------------
 1 files changed, 17 insertions(+), 32 deletions(-)

diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c
index 385fd30b142f..836f14707a62 100644
--- a/arch/frv/mm/elf-fdpic.c
+++ b/arch/frv/mm/elf-fdpic.c
@@ -60,7 +60,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 				     unsigned long pgoff, unsigned long flags)
 {
 	struct vm_area_struct *vma;
-	unsigned long limit;
+	struct vm_unmapped_area_info info;
 
 	if (len > TASK_SIZE)
 		return -ENOMEM;
@@ -79,39 +79,24 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	}
 
 	/* search between the bottom of user VM and the stack grow area */
-	addr = PAGE_SIZE;
-	limit = (current->mm->start_stack - 0x00200000);
-	if (addr + len <= limit) {
-		limit -= len;
-
-		if (addr <= limit) {
-			vma = find_vma(current->mm, PAGE_SIZE);
-			for (; vma; vma = vma->vm_next) {
-				if (addr > limit)
-					break;
-				if (addr + len <= vma->vm_start)
-					goto success;
-				addr = vma->vm_end;
-			}
-		}
-	}
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = PAGE_SIZE;
+	info.high_limit = (current->mm->start_stack - 0x00200000);
+	info.align_mask = 0;
+	info.align_offset = 0;
+	addr = vm_unmapped_area(&info);
+	if (!(addr & ~PAGE_MASK))
+		goto success;
+	VM_BUG_ON(addr != -ENOMEM);
 
 	/* search from just above the WorkRAM area to the top of memory */
-	addr = PAGE_ALIGN(0x80000000);
-	limit = TASK_SIZE - len;
-	if (addr <= limit) {
-		vma = find_vma(current->mm, addr);
-		for (; vma; vma = vma->vm_next) {
-			if (addr > limit)
-				break;
-			if (addr + len <= vma->vm_start)
-				goto success;
-			addr = vma->vm_end;
-		}
-
-		if (!vma && addr <= limit)
-			goto success;
-	}
+	info.low_limit = PAGE_ALIGN(0x80000000);
+	info.high_limit = TASK_SIZE;
+	addr = vm_unmapped_area(&info);
+	if (!(addr & ~PAGE_MASK))
+		goto success;
+	VM_BUG_ON(addr != -ENOMEM);
 
 #if 0
 	printk("[area] l=%lx (ENOMEM) f='%s'\n",
-- 
1.7.7.3

--
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From - Thu Nov 08 21:08:52 2018
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X-Mozilla-Keys:                                                                                 
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From: Michel Lespinasse <walken@google.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ia64
Subject: [PATCH 4/8] mm: use vm_unmapped_area() on ia64 architecture
Date: Wed, 23 Jan 2013 17:29:47 -0800
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Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.kernel.mm:93862 gmane.linux.kernel:1428152 gmane.linux.ports.ppc64.devel:87332 gmane.linux.ports.parisc:4755 gmane.linux.ports.alpha:2007 gmane.linux.ports.ia64:22956
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93862>

Update the ia64 arch_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.

Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Rik van Riel <riel@redhat.com>

---
 arch/ia64/kernel/sys_ia64.c |   37 ++++++++++++-------------------------
 1 files changed, 12 insertions(+), 25 deletions(-)

diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index d9439ef2f661..41e33f84c185 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -25,9 +25,9 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 			unsigned long pgoff, unsigned long flags)
 {
 	long map_shared = (flags & MAP_SHARED);
-	unsigned long start_addr, align_mask = PAGE_SIZE - 1;
+	unsigned long align_mask = 0;
 	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma;
+	struct vm_unmapped_area_info info;
 
 	if (len > RGN_MAP_LIMIT)
 		return -ENOMEM;
@@ -44,7 +44,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 		addr = 0;
 #endif
 	if (!addr)
-		addr = mm->free_area_cache;
+		addr = TASK_UNMAPPED_BASE;
 
 	if (map_shared && (TASK_SIZE > 0xfffffffful))
 		/*
@@ -53,28 +53,15 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 		 * tasks, we prefer to avoid exhausting the address space too quickly by
 		 * limiting alignment to a single page.
 		 */
-		align_mask = SHMLBA - 1;
-
-  full_search:
-	start_addr = addr = (addr + align_mask) & ~align_mask;
-
-	for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
-		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (TASK_SIZE - len < addr || RGN_MAP_LIMIT - len < REGION_OFFSET(addr)) {
-			if (start_addr != TASK_UNMAPPED_BASE) {
-				/* Start a new search --- just in case we missed some holes.  */
-				addr = TASK_UNMAPPED_BASE;
-				goto full_search;
-			}
-			return -ENOMEM;
-		}
-		if (!vma || addr + len <= vma->vm_start) {
-			/* Remember the address where we stopped this search:  */
-			mm->free_area_cache = addr + len;
-			return addr;
-		}
-		addr = (vma->vm_end + align_mask) & ~align_mask;
-	}
+		align_mask = PAGE_MASK & (SHMLBA - 1);
+
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = addr;
+	info.high_limit = TASK_SIZE;
+	info.align_mask = align_mask;
+	info.align_offset = 0;
+	return vm_unmapped_area(&info);
 }
 
 asmlinkage long
-- 
1.7.7.3

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Subject: [PATCH 5/8] mm: use vm_unmapped_area() in hugetlbfs on ia64 architecture
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Xref: news.gmane.org gmane.linux.kernel.mm:93863 gmane.linux.kernel:1428153 gmane.linux.ports.ppc64.devel:87333 gmane.linux.ports.parisc:4756 gmane.linux.ports.alpha:2008 gmane.linux.ports.ia64:22957
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93863>

Update the ia64 hugetlb_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.

Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Rik van Riel <riel@redhat.com>

---
 arch/ia64/mm/hugetlbpage.c |   20 +++++++++-----------
 1 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
index 5ca674b74737..76069c18ee42 100644
--- a/arch/ia64/mm/hugetlbpage.c
+++ b/arch/ia64/mm/hugetlbpage.c
@@ -148,7 +148,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb,
 unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
 		unsigned long pgoff, unsigned long flags)
 {
-	struct vm_area_struct *vmm;
+	struct vm_unmapped_area_info info;
 
 	if (len > RGN_MAP_LIMIT)
 		return -ENOMEM;
@@ -165,16 +165,14 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
 	/* This code assumes that RGN_HPAGE != 0. */
 	if ((REGION_NUMBER(addr) != RGN_HPAGE) || (addr & (HPAGE_SIZE - 1)))
 		addr = HPAGE_REGION_BASE;
-	else
-		addr = ALIGN(addr, HPAGE_SIZE);
-	for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) {
-		/* At this point:  (!vmm || addr < vmm->vm_end). */
-		if (REGION_OFFSET(addr) + len > RGN_MAP_LIMIT)
-			return -ENOMEM;
-		if (!vmm || (addr + len) <= vmm->vm_start)
-			return addr;
-		addr = ALIGN(vmm->vm_end, HPAGE_SIZE);
-	}
+
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = addr;
+	info.high_limit = HPAGE_REGION_BASE + RGN_MAP_LIMIT;
+	info.align_mask = PAGE_MASK & (HPAGE_SIZE - 1);
+	info.align_offset = 0;
+	return vm_unmapped_area(&info);
 }
 
 static int __init hugetlb_setup_sz(char *str)
-- 
1.7.7.3

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Subject: [PATCH 6/8] mm: remove free_area_cache use in powerpc architecture
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Xref: news.gmane.org gmane.linux.kernel.mm:93864 gmane.linux.kernel:1428154 gmane.linux.ports.ppc64.devel:87334 gmane.linux.ports.parisc:4757 gmane.linux.ports.alpha:2009 gmane.linux.ports.ia64:22958
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93864>

As all other architectures have been converted to use vm_unmapped_area(),
we are about to retire the free_area_cache.

This change simply removes the use of that cache in
slice_get_unmapped_area(), which will most certainly have a
performance cost. Next one will convert that function to use the
vm_unmapped_area() infrastructure and regain the performance.

Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Rik van Riel <riel@redhat.com>

---
 arch/powerpc/include/asm/page_64.h       |    3 +-
 arch/powerpc/mm/hugetlbpage.c            |    2 +-
 arch/powerpc/mm/slice.c                  |  108 +++++------------------------
 arch/powerpc/platforms/cell/spufs/file.c |    2 +-
 4 files changed, 22 insertions(+), 93 deletions(-)

diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h
index cd915d6b093d..88693cef4f3d 100644
--- a/arch/powerpc/include/asm/page_64.h
+++ b/arch/powerpc/include/asm/page_64.h
@@ -99,8 +99,7 @@ extern unsigned long slice_get_unmapped_area(unsigned long addr,
 					     unsigned long len,
 					     unsigned long flags,
 					     unsigned int psize,
-					     int topdown,
-					     int use_cache);
+					     int topdown);
 
 extern unsigned int get_slice_psize(struct mm_struct *mm,
 				    unsigned long addr);
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 1a6de0a7d8eb..5dc52d803ed8 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -742,7 +742,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 	struct hstate *hstate = hstate_file(file);
 	int mmu_psize = shift_to_mmu_psize(huge_page_shift(hstate));
 
-	return slice_get_unmapped_area(addr, len, flags, mmu_psize, 1, 0);
+	return slice_get_unmapped_area(addr, len, flags, mmu_psize, 1);
 }
 #endif
 
diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index cf9dada734b6..999a74f25ebe 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -240,23 +240,15 @@ static void slice_convert(struct mm_struct *mm, struct slice_mask mask, int psiz
 static unsigned long slice_find_area_bottomup(struct mm_struct *mm,
 					      unsigned long len,
 					      struct slice_mask available,
-					      int psize, int use_cache)
+					      int psize)
 {
 	struct vm_area_struct *vma;
-	unsigned long start_addr, addr;
+	unsigned long addr;
 	struct slice_mask mask;
 	int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
 
-	if (use_cache) {
-		if (len <= mm->cached_hole_size) {
-			start_addr = addr = TASK_UNMAPPED_BASE;
-			mm->cached_hole_size = 0;
-		} else
-			start_addr = addr = mm->free_area_cache;
-	} else
-		start_addr = addr = TASK_UNMAPPED_BASE;
+	addr = TASK_UNMAPPED_BASE;
 
-full_search:
 	for (;;) {
 		addr = _ALIGN_UP(addr, 1ul << pshift);
 		if ((TASK_SIZE - len) < addr)
@@ -272,63 +264,24 @@ full_search:
 				addr = _ALIGN_UP(addr + 1,  1ul << SLICE_HIGH_SHIFT);
 			continue;
 		}
-		if (!vma || addr + len <= vma->vm_start) {
-			/*
-			 * Remember the place where we stopped the search:
-			 */
-			if (use_cache)
-				mm->free_area_cache = addr + len;
+		if (!vma || addr + len <= vma->vm_start)
 			return addr;
-		}
-		if (use_cache && (addr + mm->cached_hole_size) < vma->vm_start)
-		        mm->cached_hole_size = vma->vm_start - addr;
 		addr = vma->vm_end;
 	}
 
-	/* Make sure we didn't miss any holes */
-	if (use_cache && start_addr != TASK_UNMAPPED_BASE) {
-		start_addr = addr = TASK_UNMAPPED_BASE;
-		mm->cached_hole_size = 0;
-		goto full_search;
-	}
 	return -ENOMEM;
 }
 
 static unsigned long slice_find_area_topdown(struct mm_struct *mm,
 					     unsigned long len,
 					     struct slice_mask available,
-					     int psize, int use_cache)
+					     int psize)
 {
 	struct vm_area_struct *vma;
 	unsigned long addr;
 	struct slice_mask mask;
 	int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
 
-	/* check if free_area_cache is useful for us */
-	if (use_cache) {
-		if (len <= mm->cached_hole_size) {
-			mm->cached_hole_size = 0;
-			mm->free_area_cache = mm->mmap_base;
-		}
-
-		/* either no address requested or can't fit in requested
-		 * address hole
-		 */
-		addr = mm->free_area_cache;
-
-		/* make sure it can fit in the remaining address space */
-		if (addr > len) {
-			addr = _ALIGN_DOWN(addr - len, 1ul << pshift);
-			mask = slice_range_to_mask(addr, len);
-			if (slice_check_fit(mask, available) &&
-			    slice_area_is_free(mm, addr, len))
-					/* remember the address as a hint for
-					 * next time
-					 */
-					return (mm->free_area_cache = addr);
-		}
-	}
-
 	addr = mm->mmap_base;
 	while (addr > len) {
 		/* Go down by chunk size */
@@ -352,16 +305,8 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
 		 * return with success:
 		 */
 		vma = find_vma(mm, addr);
-		if (!vma || (addr + len) <= vma->vm_start) {
-			/* remember the address as a hint for next time */
-			if (use_cache)
-				mm->free_area_cache = addr;
+		if (!vma || (addr + len) <= vma->vm_start)
 			return addr;
-		}
-
-		/* remember the largest hole we saw so far */
-		if (use_cache && (addr + mm->cached_hole_size) < vma->vm_start)
-		        mm->cached_hole_size = vma->vm_start - addr;
 
 		/* try just below the current vma->vm_start */
 		addr = vma->vm_start;
@@ -373,28 +318,18 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
 	 * can happen with large stack limits and large mmap()
 	 * allocations.
 	 */
-	addr = slice_find_area_bottomup(mm, len, available, psize, 0);
-
-	/*
-	 * Restore the topdown base:
-	 */
-	if (use_cache) {
-		mm->free_area_cache = mm->mmap_base;
-		mm->cached_hole_size = ~0UL;
-	}
-
-	return addr;
+	return slice_find_area_bottomup(mm, len, available, psize);
 }
 
 
 static unsigned long slice_find_area(struct mm_struct *mm, unsigned long len,
 				     struct slice_mask mask, int psize,
-				     int topdown, int use_cache)
+				     int topdown)
 {
 	if (topdown)
-		return slice_find_area_topdown(mm, len, mask, psize, use_cache);
+		return slice_find_area_topdown(mm, len, mask, psize);
 	else
-		return slice_find_area_bottomup(mm, len, mask, psize, use_cache);
+		return slice_find_area_bottomup(mm, len, mask, psize);
 }
 
 #define or_mask(dst, src)	do {			\
@@ -415,7 +350,7 @@ static unsigned long slice_find_area(struct mm_struct *mm, unsigned long len,
 
 unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 				      unsigned long flags, unsigned int psize,
-				      int topdown, int use_cache)
+				      int topdown)
 {
 	struct slice_mask mask = {0, 0};
 	struct slice_mask good_mask;
@@ -430,8 +365,8 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 	BUG_ON(mm->task_size == 0);
 
 	slice_dbg("slice_get_unmapped_area(mm=%p, psize=%d...\n", mm, psize);
-	slice_dbg(" addr=%lx, len=%lx, flags=%lx, topdown=%d, use_cache=%d\n",
-		  addr, len, flags, topdown, use_cache);
+	slice_dbg(" addr=%lx, len=%lx, flags=%lx, topdown=%d\n",
+		  addr, len, flags, topdown);
 
 	if (len > mm->task_size)
 		return -ENOMEM;
@@ -503,8 +438,7 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 		/* Now let's see if we can find something in the existing
 		 * slices for that size
 		 */
-		newaddr = slice_find_area(mm, len, good_mask, psize, topdown,
-					  use_cache);
+		newaddr = slice_find_area(mm, len, good_mask, psize, topdown);
 		if (newaddr != -ENOMEM) {
 			/* Found within the good mask, we don't have to setup,
 			 * we thus return directly
@@ -536,8 +470,7 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 	 * anywhere in the good area.
 	 */
 	if (addr) {
-		addr = slice_find_area(mm, len, good_mask, psize, topdown,
-				       use_cache);
+		addr = slice_find_area(mm, len, good_mask, psize, topdown);
 		if (addr != -ENOMEM) {
 			slice_dbg(" found area at 0x%lx\n", addr);
 			return addr;
@@ -547,15 +480,14 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 	/* Now let's see if we can find something in the existing slices
 	 * for that size plus free slices
 	 */
-	addr = slice_find_area(mm, len, potential_mask, psize, topdown,
-			       use_cache);
+	addr = slice_find_area(mm, len, potential_mask, psize, topdown);
 
 #ifdef CONFIG_PPC_64K_PAGES
 	if (addr == -ENOMEM && psize == MMU_PAGE_64K) {
 		/* retry the search with 4k-page slices included */
 		or_mask(potential_mask, compat_mask);
 		addr = slice_find_area(mm, len, potential_mask, psize,
-				       topdown, use_cache);
+				       topdown);
 	}
 #endif
 
@@ -586,8 +518,7 @@ unsigned long arch_get_unmapped_area(struct file *filp,
 				     unsigned long flags)
 {
 	return slice_get_unmapped_area(addr, len, flags,
-				       current->mm->context.user_psize,
-				       0, 1);
+				       current->mm->context.user_psize, 0);
 }
 
 unsigned long arch_get_unmapped_area_topdown(struct file *filp,
@@ -597,8 +528,7 @@ unsigned long arch_get_unmapped_area_topdown(struct file *filp,
 					     const unsigned long flags)
 {
 	return slice_get_unmapped_area(addr0, len, flags,
-				       current->mm->context.user_psize,
-				       1, 1);
+				       current->mm->context.user_psize, 1);
 }
 
 unsigned int get_slice_psize(struct mm_struct *mm, unsigned long addr)
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 0cfece4cf6ef..2eb4df2a9388 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -352,7 +352,7 @@ static unsigned long spufs_get_unmapped_area(struct file *file,
 
 	/* Else, try to obtain a 64K pages slice */
 	return slice_get_unmapped_area(addr, len, flags,
-				       MMU_PAGE_64K, 1, 0);
+				       MMU_PAGE_64K, 1);
 }
 #endif /* CONFIG_SPU_FS_64K_LS */
 
-- 
1.7.7.3

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Xref: news.gmane.org gmane.linux.kernel.mm:93865 gmane.linux.kernel:1428155 gmane.linux.ports.ppc64.devel:87335 gmane.linux.ports.parisc:4758 gmane.linux.ports.alpha:2010 gmane.linux.ports.ia64:22959
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93865>

Update the powerpc slice_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.

Signed-off-by: Michel Lespinasse <walken@google.com>

---
 arch/powerpc/mm/slice.c |  123 ++++++++++++++++++++++++++++++-----------------
 1 files changed, 78 insertions(+), 45 deletions(-)

diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index 999a74f25ebe..3e99c149271a 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -237,36 +237,69 @@ static void slice_convert(struct mm_struct *mm, struct slice_mask mask, int psiz
 #endif
 }
 
+/*
+ * Compute which slice addr is part of;
+ * set *boundary_addr to the start or end boundary of that slice
+ * (depending on 'end' parameter);
+ * return boolean indicating if the slice is marked as available in the
+ * 'available' slice_mark.
+ */
+static bool slice_scan_available(unsigned long addr,
+				 struct slice_mask available,
+				 int end,
+				 unsigned long *boundary_addr)
+{
+	unsigned long slice;
+	if (addr < SLICE_LOW_TOP) {
+		slice = GET_LOW_SLICE_INDEX(addr);
+		*boundary_addr = (slice + end) << SLICE_LOW_SHIFT;
+		return !!(available.low_slices & (1u << slice));
+	} else {
+		slice = GET_HIGH_SLICE_INDEX(addr);
+		*boundary_addr = (slice + end) ?
+			((slice + end) << SLICE_HIGH_SHIFT) : SLICE_LOW_TOP;
+		return !!(available.high_slices & (1u << slice));
+	}
+}
+
 static unsigned long slice_find_area_bottomup(struct mm_struct *mm,
 					      unsigned long len,
 					      struct slice_mask available,
 					      int psize)
 {
-	struct vm_area_struct *vma;
-	unsigned long addr;
-	struct slice_mask mask;
 	int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
+	unsigned long addr, found, next_end;
+	struct vm_unmapped_area_info info;
 
-	addr = TASK_UNMAPPED_BASE;
-
-	for (;;) {
-		addr = _ALIGN_UP(addr, 1ul << pshift);
-		if ((TASK_SIZE - len) < addr)
-			break;
-		vma = find_vma(mm, addr);
-		BUG_ON(vma && (addr >= vma->vm_end));
+	info.flags = 0;
+	info.length = len;
+	info.align_mask = PAGE_MASK & ((1ul << pshift) - 1);
+	info.align_offset = 0;
 
-		mask = slice_range_to_mask(addr, len);
-		if (!slice_check_fit(mask, available)) {
-			if (addr < SLICE_LOW_TOP)
-				addr = _ALIGN_UP(addr + 1,  1ul << SLICE_LOW_SHIFT);
-			else
-				addr = _ALIGN_UP(addr + 1,  1ul << SLICE_HIGH_SHIFT);
+	addr = TASK_UNMAPPED_BASE;
+	while (addr < TASK_SIZE) {
+		info.low_limit = addr;
+		if (!slice_scan_available(addr, available, 1, &addr))
 			continue;
+
+ next_slice:
+		/*
+		 * At this point [info.low_limit; addr) covers
+		 * available slices only and ends at a slice boundary.
+		 * Check if we need to reduce the range, or if we can
+		 * extend it to cover the next available slice.
+		 */
+		if (addr >= TASK_SIZE)
+			addr = TASK_SIZE;
+		else if (slice_scan_available(addr, available, 1, &next_end)) {
+			addr = next_end;
+			goto next_slice;
 		}
-		if (!vma || addr + len <= vma->vm_start)
-			return addr;
-		addr = vma->vm_end;
+		info.high_limit = addr;
+
+		found = vm_unmapped_area(&info);
+		if (!(found & ~PAGE_MASK))
+			return found;
 	}
 
 	return -ENOMEM;
@@ -277,39 +310,39 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
 					     struct slice_mask available,
 					     int psize)
 {
-	struct vm_area_struct *vma;
-	unsigned long addr;
-	struct slice_mask mask;
 	int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
+	unsigned long addr, found, prev;
+	struct vm_unmapped_area_info info;
 
-	addr = mm->mmap_base;
-	while (addr > len) {
-		/* Go down by chunk size */
-		addr = _ALIGN_DOWN(addr - len, 1ul << pshift);
+	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
+	info.length = len;
+	info.align_mask = PAGE_MASK & ((1ul << pshift) - 1);
+	info.align_offset = 0;
 
-		/* Check for hit with different page size */
-		mask = slice_range_to_mask(addr, len);
-		if (!slice_check_fit(mask, available)) {
-			if (addr < SLICE_LOW_TOP)
-				addr = _ALIGN_DOWN(addr, 1ul << SLICE_LOW_SHIFT);
-			else if (addr < (1ul << SLICE_HIGH_SHIFT))
-				addr = SLICE_LOW_TOP;
-			else
-				addr = _ALIGN_DOWN(addr, 1ul << SLICE_HIGH_SHIFT);
+	addr = mm->mmap_base;
+	while (addr > PAGE_SIZE) {
+		info.high_limit = addr;
+		if (!slice_scan_available(addr - 1, available, 0, &addr))
 			continue;
-		}
 
+ prev_slice:
 		/*
-		 * Lookup failure means no vma is above this address,
-		 * else if new region fits below vma->vm_start,
-		 * return with success:
+		 * At this point [addr; info.high_limit) covers
+		 * available slices only and starts at a slice boundary.
+		 * Check if we need to reduce the range, or if we can
+		 * extend it to cover the previous available slice.
 		 */
-		vma = find_vma(mm, addr);
-		if (!vma || (addr + len) <= vma->vm_start)
-			return addr;
+		if (addr < PAGE_SIZE)
+			addr = PAGE_SIZE;
+		else if (slice_scan_available(addr - 1, available, 0, &prev)) {
+			addr = prev;
+			goto prev_slice;
+		}
+		info.low_limit = addr;
 
-		/* try just below the current vma->vm_start */
-		addr = vma->vm_start;
+		found = vm_unmapped_area(&info);
+		if (!(found & ~PAGE_MASK))
+			return found;
 	}
 
 	/*
-- 
1.7.7.3

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Xref: news.gmane.org gmane.linux.kernel.mm:93866 gmane.linux.kernel:1428156 gmane.linux.ports.ppc64.devel:87336 gmane.linux.ports.parisc:4759 gmane.linux.ports.alpha:2011 gmane.linux.ports.ia64:22960
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/93866>

Since all architectures have been converted to use vm_unmapped_area(),
there is no remaining use for the free_area_cache.

Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Rik van Riel <riel@redhat.com>

---
 arch/arm/mm/mmap.c               |    2 --
 arch/arm64/mm/mmap.c             |    2 --
 arch/mips/mm/mmap.c              |    2 --
 arch/powerpc/mm/mmap_64.c        |    2 --
 arch/s390/mm/mmap.c              |    4 ----
 arch/sparc/kernel/sys_sparc_64.c |    2 --
 arch/tile/mm/mmap.c              |    2 --
 arch/x86/ia32/ia32_aout.c        |    2 --
 arch/x86/mm/mmap.c               |    2 --
 fs/binfmt_aout.c                 |    2 --
 fs/binfmt_elf.c                  |    2 --
 include/linux/mm_types.h         |    3 ---
 include/linux/sched.h            |    2 --
 kernel/fork.c                    |    4 ----
 mm/mmap.c                        |   28 ----------------------------
 mm/nommu.c                       |    4 ----
 mm/util.c                        |    1 -
 17 files changed, 0 insertions(+), 66 deletions(-)

diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 10062ceadd1c..0c6356255fe3 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -181,11 +181,9 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base(random_factor);
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
 
diff --git a/arch/arm64/mm/mmap.c b/arch/arm64/mm/mmap.c
index 7c7be7855638..8ed6cb1a900f 100644
--- a/arch/arm64/mm/mmap.c
+++ b/arch/arm64/mm/mmap.c
@@ -90,11 +90,9 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base();
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
 EXPORT_SYMBOL_GPL(arch_pick_mmap_layout);
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index d9be7540a6be..f4e63c29d044 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -158,11 +158,9 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base(random_factor);
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
 
diff --git a/arch/powerpc/mm/mmap_64.c b/arch/powerpc/mm/mmap_64.c
index 67a42ed0d2fc..cb8bdbe4972f 100644
--- a/arch/powerpc/mm/mmap_64.c
+++ b/arch/powerpc/mm/mmap_64.c
@@ -92,10 +92,8 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base();
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index c59a5efa58b1..f2a462625c9e 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -91,11 +91,9 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base();
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
 
@@ -173,11 +171,9 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
 		mm->get_unmapped_area = s390_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base();
 		mm->get_unmapped_area = s390_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
 
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 708bc29d36a8..f3c169f9d3a1 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -290,7 +290,6 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	    sysctl_legacy_va_layout) {
 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		/* We know it's 32-bit */
 		unsigned long task_size = STACK_TOP32;
@@ -302,7 +301,6 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 
 		mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor);
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
 
diff --git a/arch/tile/mm/mmap.c b/arch/tile/mm/mmap.c
index f96f4cec602a..d67d91ebf63e 100644
--- a/arch/tile/mm/mmap.c
+++ b/arch/tile/mm/mmap.c
@@ -66,10 +66,8 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (!is_32bit || rlimit(RLIMIT_STACK) == RLIM_INFINITY) {
 		mm->mmap_base = TASK_UNMAPPED_BASE;
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base(mm);
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index a703af19c281..3b3558577642 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -309,8 +309,6 @@ static int load_aout_binary(struct linux_binprm *bprm)
 		(current->mm->start_data = N_DATADDR(ex));
 	current->mm->brk = ex.a_bss +
 		(current->mm->start_brk = N_BSSADDR(ex));
-	current->mm->free_area_cache = TASK_UNMAPPED_BASE;
-	current->mm->cached_hole_size = 0;
 
 	retval = setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT);
 	if (retval < 0) {
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index 845df6835f9f..62c29a5bfe26 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -115,10 +115,8 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	if (mmap_is_legacy()) {
 		mm->mmap_base = mmap_legacy_base();
 		mm->get_unmapped_area = arch_get_unmapped_area;
-		mm->unmap_area = arch_unmap_area;
 	} else {
 		mm->mmap_base = mmap_base();
 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
-		mm->unmap_area = arch_unmap_area_topdown;
 	}
 }
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index 6043567b95c2..692e75ca6415 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -256,8 +256,6 @@ static int load_aout_binary(struct linux_binprm * bprm)
 		(current->mm->start_data = N_DATADDR(ex));
 	current->mm->brk = ex.a_bss +
 		(current->mm->start_brk = N_BSSADDR(ex));
-	current->mm->free_area_cache = current->mm->mmap_base;
-	current->mm->cached_hole_size = 0;
 
 	retval = setup_arg_pages(bprm, STACK_TOP, EXSTACK_DEFAULT);
 	if (retval < 0) {
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 0c42cdbabecf..e2087dea9c1e 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -730,8 +730,6 @@ static int load_elf_binary(struct linux_binprm *bprm)
 
 	/* Do this so that we can load the interpreter, if need be.  We will
 	   change some of these later */
-	current->mm->free_area_cache = current->mm->mmap_base;
-	current->mm->cached_hole_size = 0;
 	retval = setup_arg_pages(bprm, randomize_stack_top(STACK_TOP),
 				 executable_stack);
 	if (retval < 0) {
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index f8f5162a3571..e50eb047ea8a 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -329,12 +329,9 @@ struct mm_struct {
 	unsigned long (*get_unmapped_area) (struct file *filp,
 				unsigned long addr, unsigned long len,
 				unsigned long pgoff, unsigned long flags);
-	void (*unmap_area) (struct mm_struct *mm, unsigned long addr);
 #endif
 	unsigned long mmap_base;		/* base of mmap area */
 	unsigned long task_size;		/* size of task vm space */
-	unsigned long cached_hole_size; 	/* if non-zero, the largest hole below free_area_cache */
-	unsigned long free_area_cache;		/* first hole of size cached_hole_size or larger */
 	unsigned long highest_vm_end;		/* highest vma end address */
 	pgd_t * pgd;
 	atomic_t mm_users;			/* How many users with user space? */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 206bb089c06b..fa7e0a60ebe9 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -366,8 +366,6 @@ extern unsigned long
 arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
 			  unsigned long len, unsigned long pgoff,
 			  unsigned long flags);
-extern void arch_unmap_area(struct mm_struct *, unsigned long);
-extern void arch_unmap_area_topdown(struct mm_struct *, unsigned long);
 #else
 static inline void arch_pick_mmap_layout(struct mm_struct *mm) {}
 #endif
diff --git a/kernel/fork.c b/kernel/fork.c
index a31b823b3c2d..bdf61755ef4a 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -364,8 +364,6 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 	mm->locked_vm = 0;
 	mm->mmap = NULL;
 	mm->mmap_cache = NULL;
-	mm->free_area_cache = oldmm->mmap_base;
-	mm->cached_hole_size = ~0UL;
 	mm->map_count = 0;
 	cpumask_clear(mm_cpumask(mm));
 	mm->mm_rb = RB_ROOT;
@@ -539,8 +537,6 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p)
 	mm->nr_ptes = 0;
 	memset(&mm->rss_stat, 0, sizeof(mm->rss_stat));
 	spin_lock_init(&mm->page_table_lock);
-	mm->free_area_cache = TASK_UNMAPPED_BASE;
-	mm->cached_hole_size = ~0UL;
 	mm_init_aio(mm);
 	mm_init_owner(mm, p);
 
diff --git a/mm/mmap.c b/mm/mmap.c
index f54b235f29a9..532f447879d4 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1800,15 +1800,6 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 }
 #endif	
 
-void arch_unmap_area(struct mm_struct *mm, unsigned long addr)
-{
-	/*
-	 * Is this a new hole at the lowest possible address?
-	 */
-	if (addr >= TASK_UNMAPPED_BASE && addr < mm->free_area_cache)
-		mm->free_area_cache = addr;
-}
-
 /*
  * This mmap-allocator allocates new areas top-down from below the
  * stack's low limit (the base):
@@ -1865,19 +1856,6 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 }
 #endif
 
-void arch_unmap_area_topdown(struct mm_struct *mm, unsigned long addr)
-{
-	/*
-	 * Is this a new hole at the highest possible address?
-	 */
-	if (addr > mm->free_area_cache)
-		mm->free_area_cache = addr;
-
-	/* dont allow allocations above current base */
-	if (mm->free_area_cache > mm->mmap_base)
-		mm->free_area_cache = mm->mmap_base;
-}
-
 unsigned long
 get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
 		unsigned long pgoff, unsigned long flags)
@@ -2276,7 +2254,6 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
 {
 	struct vm_area_struct **insertion_point;
 	struct vm_area_struct *tail_vma = NULL;
-	unsigned long addr;
 
 	insertion_point = (prev ? &prev->vm_next : &mm->mmap);
 	vma->vm_prev = NULL;
@@ -2293,11 +2270,6 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
 	} else
 		mm->highest_vm_end = prev ? prev->vm_end : 0;
 	tail_vma->vm_next = NULL;
-	if (mm->unmap_area == arch_unmap_area)
-		addr = prev ? prev->vm_end : mm->mmap_base;
-	else
-		addr = vma ?  vma->vm_start : mm->mmap_base;
-	mm->unmap_area(mm, addr);
 	mm->mmap_cache = NULL;		/* Kill the cache. */
 }
 
diff --git a/mm/nommu.c b/mm/nommu.c
index 79c3cac87afa..b5535ff2f9d1 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1852,10 +1852,6 @@ unsigned long arch_get_unmapped_area(struct file *file, unsigned long addr,
 	return -ENOMEM;
 }
 
-void arch_unmap_area(struct mm_struct *mm, unsigned long addr)
-{
-}
-
 void unmap_mapping_range(struct address_space *mapping,
 			 loff_t const holebegin, loff_t const holelen,
 			 int even_cows)
diff --git a/mm/util.c b/mm/util.c
index c55e26b17d93..4c19aa6a1b43 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -293,7 +293,6 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 {
 	mm->mmap_base = TASK_UNMAPPED_BASE;
 	mm->get_unmapped_area = arch_get_unmapped_area;
-	mm->unmap_area = arch_unmap_area;
 }
 #endif
 
-- 
1.7.7.3

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Hi Helge,

On Tue, Jan 22, 2013 at 10:11 PM, Helge Deller <deller@gmx.de> wrote:
> please consider pulling the following 4 patches for 3.8-rc5 which improve
> the stability of the linux kernel on the parisc architecture.

I think you forgot https://patchwork.kernel.org/patch/1917351/

Gr{oetje,eeting}s,

                        Geert

--
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Hi Geert,

From: Geert Uytterhoeven <geert@linux-m68k.org>
> On Tue, Jan 22, 2013 at 10:11 PM, Helge Deller <deller@gmx.de> wrote:
> > please consider pulling the following 4 patches for 3.8-rc5 which
> improve
> > the stability of the linux kernel on the parisc architecture.
> 
> I think you forgot https://patchwork.kernel.org/patch/1917351/

I did not scheduled it as bug fix for 3.8, since the HPUX support is broken in the parisc tree anyway.

But I did not forgot your patch either. It's in my local git repository and will go in for kernel 3.9. That's why it's in state "accepted" in patchwork already.
I hope that's OK for you?

Helge
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On Wed, 2013-01-23 at 17:29 -0800, Michel Lespinasse wrote:
> Update the parisc arch_get_unmapped_area function to make use of
> vm_unmapped_area() instead of implementing a brute force search.
> 
> Signed-off-by: Michel Lespinasse <walken@google.com>
> Acked-by: Rik van Riel <riel@redhat.com>
> 
> ---
>  arch/parisc/kernel/sys_parisc.c |   46 ++++++++++++++------------------------
>  1 files changed, 17 insertions(+), 29 deletions(-)
> 
> diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
> index f76c10863c62..6ab138088076 100644
> --- a/arch/parisc/kernel/sys_parisc.c
> +++ b/arch/parisc/kernel/sys_parisc.c
> @@ -35,18 +35,15 @@
>  
>  static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
>  {
> -	struct vm_area_struct *vma;
> +	struct vm_unmapped_area_info info;
>  
> -	addr = PAGE_ALIGN(addr);
> -
> -	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
> -		/* At this point:  (!vma || addr < vma->vm_end). */
> -		if (TASK_SIZE - len < addr)
> -			return -ENOMEM;
> -		if (!vma || addr + len <= vma->vm_start)
> -			return addr;
> -		addr = vma->vm_end;
> -	}
> +	info.flags = 0;
> +	info.length = len;
> +	info.low_limit = PAGE_ALIGN(addr);
> +	info.high_limit = TASK_SIZE;
> +	info.align_mask = 0;
> +	info.align_offset = 0;
> +	return vm_unmapped_area(&info);
>  }
>  
>  #define DCACHE_ALIGN(addr) (((addr) + (SHMLBA - 1)) &~ (SHMLBA - 1))

This macro is now redundant and can be removed.

> @@ -63,30 +60,21 @@ static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
>   */
>  static int get_offset(struct address_space *mapping)
>  {
> -	int offset = (unsigned long) mapping << (PAGE_SHIFT - 8);
> -	return offset & 0x3FF000;
> +	return (unsigned long) mapping >> 8;

I'm not sure I agree with this shift (but I think the original was wrong
as well so the comment probably needs updating.)  Trying to derive
entropy from the mapping address is always nasty.  Mostly they're
embedded in the inode, so the right shift should be something like
log2(sizeof(inode)) + 1 and since the inode size is usually somewhere
between 512 and 1024 bytes, that comes out to 10 I think.

>  }
>  
>  static unsigned long get_shared_area(struct address_space *mapping,
>  		unsigned long addr, unsigned long len, unsigned long pgoff)
>  {
> -	struct vm_area_struct *vma;
> -	int offset = mapping ? get_offset(mapping) : 0;
> -
> -	offset = (offset + (pgoff << PAGE_SHIFT)) & 0x3FF000;
> +	struct vm_unmapped_area_info info;
>  
> -	addr = DCACHE_ALIGN(addr - offset) + offset;
> -
> -	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
> -		/* At this point:  (!vma || addr < vma->vm_end). */
> -		if (TASK_SIZE - len < addr)
> -			return -ENOMEM;
> -		if (!vma || addr + len <= vma->vm_start)
> -			return addr;
> -		addr = DCACHE_ALIGN(vma->vm_end - offset) + offset;
> -		if (addr < vma->vm_end) /* handle wraparound */
> -			return -ENOMEM;
> -	}
> +	info.flags = 0;
> +	info.length = len;
> +	info.low_limit = PAGE_ALIGN(addr);
> +	info.high_limit = TASK_SIZE;
> +	info.align_mask = PAGE_MASK & (SHMLBA - 1);
> +	info.align_offset = (get_offset(mapping) + pgoff) << PAGE_SHIFT;
> +	return vm_unmapped_area(&info);
>  }
>  
>  unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,

Other than that, I think this will work, but I'd like to test it.

James


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To: Helge Deller <deller@gmx.de>
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Hi Helge,

On Thu, Jan 24, 2013 at 11:27 AM, Helge Deller <deller@gmx.de> wrote:
> From: Geert Uytterhoeven <geert@linux-m68k.org>
>> On Tue, Jan 22, 2013 at 10:11 PM, Helge Deller <deller@gmx.de> wrote:
>> > please consider pulling the following 4 patches for 3.8-rc5 which
>> improve
>> > the stability of the linux kernel on the parisc architecture.
>>
>> I think you forgot https://patchwork.kernel.org/patch/1917351/
>
> I did not scheduled it as bug fix for 3.8, since the HPUX support is broken in the parisc tree anyway.

IC, I didn't know that.

> But I did not forgot your patch either. It's in my local git repository and will go in for kernel 3.9. That's why it's in state "accepted" in patchwork already.
> I hope that's OK for you?

Sure, it's up to you.

It's just one of the three issues preventing you from having a green
parisc-allmodconfig build on http://kisskb.ellerman.id.au/kisskb/matrix/.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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Michel Lespinasse <walken@google.com> wrote:

> Update the frv arch_get_unmapped_area function to make use of
> vm_unmapped_area() instead of implementing a brute force search.
> 
> Signed-off-by: Michel Lespinasse <walken@google.com>
> Acked-by: Rik van Riel <riel@redhat.com>

Acked-by: David Howells <dhowells@redhat.com>

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On 9/01/2013, at 2:28 PM, Michel Lespinasse wrote:
> Update the alpha arch_get_unmapped_area function to make use of
> vm_unmapped_area() instead of implementing a brute force search.
>
> Signed-off-by: Michel Lespinasse <walken@google.com>

'Tis running fine on my alpha.

Tested-by: Michael Cree <mcree@orcon.net.nz>

Cheers
Michael.

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parisc/allmodconfig:

drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=80=98vb=
2_dc_mmap=E2=80=99:
drivers/media/v4l2-core/videobuf2-dma-contig.c:204: error: implicit dec=
laration of function =E2=80=98dma_mmap_coherent=E2=80=99
drivers/media/v4l2-core/videobuf2-dma-contig.c: In function =E2=80=98vb=
2_dc_get_base_sgt=E2=80=99:
drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: implicit dec=
laration of function =E2=80=98dma_get_sgtable=E2=80=99

=46or architectures using dma_map_ops, dma_mmap_coherent() and
dma_get_sgtable() are provided in <asm-generic/dma-mapping-common.h>.

Parisc does not use dma_map_ops, hence it should implement them itself.
=46or now, use dummy implementations that just return -EINVAL, until th=
e
API has been finalized, as it cannot be supported on PA-RISC as-is.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: James Bottomley <James.Bottomley@hansenpartnership.com>
Cc: linux-parisc@vger.kernel.org
---
v2: Dummy implementations that just return -EINVAL
---
 arch/parisc/include/asm/dma-mapping.h |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/includ=
e/asm/dma-mapping.h
index 467bbd5..106b395 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -238,4 +238,19 @@ void * sba_get_iommu(struct parisc_device *dev);
 /* At the moment, we panic on error for IOMMU resource exaustion */
 #define dma_mapping_error(dev, x)	0
=20
+/* This API cannot be supported on PA-RISC */
+static inline int dma_mmap_coherent(struct device *dev,
+				    struct vm_area_struct *vma, void *cpu_addr,
+				    dma_addr_t dma_addr, size_t size)
+{
+	return -EINVAL;
+}
+
+static inline int dma_get_sgtable(struct device *dev, struct sg_table =
*sgt,
+				  void *cpu_addr, dma_addr_t dma_addr,
+				  size_t size)
+{
+	return -EINVAL;
+}
+
 #endif
--=20
1.7.0.4

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Similiar to other 64 bit Linux targets autofs_wqt_t needs to be of type int
which has a size of 32 bits on 32- and 64-bit parisc kernels.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/include/uapi/linux/auto_fs.h b/include/uapi/linux/auto_fs.h
index 77cdba9..d551754 100644
--- a/include/uapi/linux/auto_fs.h
+++ b/include/uapi/linux/auto_fs.h
@@ -43,7 +43,7 @@
  */
 
 #if defined(__sparc__) || defined(__mips__) || defined(__x86_64__) \
- || defined(__powerpc__) || defined(__s390__)
+ || defined(__powerpc__) || defined(__s390__) || defined(__hppa__)
 typedef unsigned int autofs_wqt_t;
 #else
 typedef unsigned long autofs_wqt_t;
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[adding autofs list and maintainer for their perusal and ack, although
this is an obvious fix to me

James]
On Thu, 2013-01-31 at 21:01 +0100, Helge Deller wrote:
> Similiar to other 64 bit Linux targets autofs_wqt_t needs to be of type int
> which has a size of 32 bits on 32- and 64-bit parisc kernels.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/include/uapi/linux/auto_fs.h b/include/uapi/linux/auto_fs.h
> index 77cdba9..d551754 100644
> --- a/include/uapi/linux/auto_fs.h
> +++ b/include/uapi/linux/auto_fs.h
> @@ -43,7 +43,7 @@
>   */
>  
>  #if defined(__sparc__) || defined(__mips__) || defined(__x86_64__) \
> - || defined(__powerpc__) || defined(__s390__)
> + || defined(__powerpc__) || defined(__s390__) || defined(__hppa__)
>  typedef unsigned int autofs_wqt_t;
>  #else
>  typedef unsigned long autofs_wqt_t;
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
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James Bottomley wrote:
> [adding autofs list and maintainer for their perusal and ack, although
> this is an obvious fix to me
> 
> James]
> 
> On Thu, 2013-01-31 at 21:01 +0100, Helge Deller wrote:
> > Similiar to other 64 bit Linux targets autofs_wqt_t needs to be of type
> > int
> > which has a size of 32 bits on 32- and 64-bit parisc kernels.
> > 
> > Signed-off-by: Helge Deller <deller@gmx.de>
> > 
> > diff --git a/include/uapi/linux/auto_fs.h b/include/uapi/linux/auto_fs.h
> > index 77cdba9..d551754 100644
> > --- a/include/uapi/linux/auto_fs.h
> > +++ b/include/uapi/linux/auto_fs.h
> > @@ -43,7 +43,7 @@
> > 
> >   */
> >  
> >  #if defined(__sparc__) || defined(__mips__) || defined(__x86_64__) \
> > 
> > - || defined(__powerpc__) || defined(__s390__)
> > + || defined(__powerpc__) || defined(__s390__) || defined(__hppa__)
> > 
> >  typedef unsigned int autofs_wqt_t;
> >  #else
> >  typedef unsigned long autofs_wqt_t;

Wouldn't it make sense to make it an unsigned int on all platforms? This 
wouldn't make any difference on 32 bit platforms and would prevent that to 
happen on the next 32-on-64 bit platform again.

Eike
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On 01/31/2013 12:26 PM, James Bottomley wrote:
> [adding autofs list and maintainer for their perusal and ack, although
> this is an obvious fix to me
> 
> James]

The #if list probably should be inverted, and only specific platforms
should have unsigned long...

	-hpa

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On Thu, 2013-01-31 at 13:29 -0800, H. Peter Anvin wrote:
> On 01/31/2013 12:26 PM, James Bottomley wrote:
> > [adding autofs list and maintainer for their perusal and ack, although
> > this is an obvious fix to me
> > 
> > James]
> 
> The #if list probably should be inverted, and only specific platforms
> should have unsigned long...

The whitelist is 64 bit only platforms, like ia64, isn't it?  So yes,
they're far less numerous.

James


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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: add CONFIG_MLONGCALLS option to enable linkage of
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When building a 64bit kernel which includes all necessary drivers and
filesystems the vmlinux kernel often gets so huge, that the linker won't
be able to resolve the branch stubs. This patch overcomes this limit by
providing an option to compile the kernel with the -mlong-calls compiler
option.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index b77feff..3df1c35 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -161,6 +161,23 @@ config PREFETCH
 	def_bool y
 	depends on PA8X00 || PA7200
 
+config MLONGCALLS
+	bool "Enable the -mlong-calls compiler option for big kernels"
+	def_bool y if (!MODULES)
+	depends on PA8X00
+	help
+	  If you configure the kernel to include many drivers built-in instead
+	  as modules, the kernel executable may become too big, so that the
+	  linker will not be able to resolve some long branches and fails to link
+	  your vmlinux kernel. In that case enabling this option will help you
+	  to overcome this limit by using the -mlong-calls compiler option.
+
+	  Usually you want to say N here, unless you e.g. want to build
+	  a kernel which includes all necessary drivers built-in and which can
+	  be used for TFTP booting without the need to have an initrd ramdisk.
+
+	  Enabling this option will probably slow down your kernel.
+
 config 64BIT
 	bool "64-bit kernel"
 	depends on PA8X00
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5707f1a..ed9a14c 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -65,6 +64,10 @@ ifndef CONFIG_FUNCTION_TRACER
   cflags-y	+= -ffunction-sections
 endif
 
+# Use long jumps instead of long branches (needed if your linker fails to
+# link a too big vmlinux executable)
+cflags-$(CONFIG_MLONGCALLS)	+= -mlong-calls
+
 # select which processor to optimise for
 cflags-$(CONFIG_PA7100)		+= -march=1.1 -mschedule=7100
 cflags-$(CONFIG_PA7200)		+= -march=1.1 -mschedule=7200
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On 01/31/2013 01:42 PM, James Bottomley wrote:
> On Thu, 2013-01-31 at 13:29 -0800, H. Peter Anvin wrote:
>> On 01/31/2013 12:26 PM, James Bottomley wrote:
>>> [adding autofs list and maintainer for their perusal and ack, although
>>> this is an obvious fix to me
>>>
>>> James]
>>
>> The #if list probably should be inverted, and only specific platforms
>> should have unsigned long...
> 
> The whitelist is 64 bit only platforms, like ia64, isn't it?  So yes,
> they're far less numerous.
> 

Correct.  It is basically the 64-bit platforms without any 32-bit
userspace, like Alpha and IA64.

	-hpa



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From: Helge Deller <deller@gmx.de>
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The current Makefile will only choose the hppa64 cross compiler when
running natively on hppa in a 32bit userspace.
This patch additionally chooses the correct 32/64 bit hppa compiler even
when doing real cross compiling to hppa/hppa64 from another architecture.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5707f1a..ed9a14c 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -32,11 +32,6 @@ ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
 WIDTH		:= 64

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H. Peter Anvin wrote:
> On 01/31/2013 01:42 PM, James Bottomley wrote:
> > On Thu, 2013-01-31 at 13:29 -0800, H. Peter Anvin wrote:
> >> On 01/31/2013 12:26 PM, James Bottomley wrote:
> >>> [adding autofs list and maintainer for their perusal and ack, although
> >>> this is an obvious fix to me
> >>> 
> >>> James]
> >> 
> >> The #if list probably should be inverted, and only specific platforms
> >> should have unsigned long...
> > 
> > The whitelist is 64 bit only platforms, like ia64, isn't it?  So yes,
> > they're far less numerous.
> 
> Correct.  It is basically the 64-bit platforms without any 32-bit
> userspace, like Alpha and IA64.

Arm64? Should this be a CONFIG_ARCH_CAN_HAVE_32BIT_USERSPACE that would cover 
this? And may e.g. be used to remove compat_ioctl on those archs, too?

Eike
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On 01/31/2013 02:10 PM, Rolf Eike Beer wrote:
> H. Peter Anvin wrote:
>> On 01/31/2013 01:42 PM, James Bottomley wrote:
>>> On Thu, 2013-01-31 at 13:29 -0800, H. Peter Anvin wrote:
>>>> On 01/31/2013 12:26 PM, James Bottomley wrote:
>>>>> [adding autofs list and maintainer for their perusal and
>>>>> ack, although this is an obvious fix to me
>>>>> 
>>>>> James]
>>>> 
>>>> The #if list probably should be inverted, and only specific
>>>> platforms should have unsigned long...
>>> 
>>> The whitelist is 64 bit only platforms, like ia64, isn't it?
>>> So yes, they're far less numerous.
>> 
>> Correct.  It is basically the 64-bit platforms without any
>> 32-bit userspace, like Alpha and IA64.
> 
> Arm64? Should this be a CONFIG_ARCH_CAN_HAVE_32BIT_USERSPACE that
> would cover this? And may e.g. be used to remove compat_ioctl on
> those archs, too?
> 

compat_ioctl should be CONFIG_COMPAT.

	-hpa


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From: Catalin Marinas <catalin.marinas@arm.com>
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Subject: Re: [PATCH] parisc: unbreak automounter support on 64-bit kernel with
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 31 January 2013 22:10, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
> H. Peter Anvin wrote:
>> On 01/31/2013 01:42 PM, James Bottomley wrote:
>> > On Thu, 2013-01-31 at 13:29 -0800, H. Peter Anvin wrote:
>> >> On 01/31/2013 12:26 PM, James Bottomley wrote:
>> >>> [adding autofs list and maintainer for their perusal and ack, although
>> >>> this is an obvious fix to me
>> >>>
>> >>> James]
>> >>
>> >> The #if list probably should be inverted, and only specific platforms
>> >> should have unsigned long...
>> >
>> > The whitelist is 64 bit only platforms, like ia64, isn't it?  So yes,
>> > they're far less numerous.
>>
>> Correct.  It is basically the 64-bit platforms without any 32-bit
>> userspace, like Alpha and IA64.
>
> Arm64?

It supports 32-bit user-space (CONFIG_COMPAT). But we missed this
#ifdef for arm64. I'm not familiar with the autofs subsystem but at a
first look it seems that autofs_wqt_t types are not shared with user
space as part of a structure. It can come as an argument for an ioctl
command but as long as we don't expect this type to hold data larger
than 32-bit it should be ok.

-- 
Catalin
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH 17/19 v2] parisc/mm/fault.c: Port OOM changes to do_page_fault
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Cc: linux-parisc <linux-parisc@vger.kernel.org>
To: Kautuk Consul <consul.kautuk@gmail.com>,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
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Hi Kautuk,

sorry for the very late reply!

Anyway, the patch seems OK, and we will include it in the next parisc kernel.

THANKS!!!

Helge

@Dave, James: 
- This is the patch "11" in Dave's package...
- Kautuk even sent a testcase: http://marc.info/?l=linux-mm&m=133319623304492&w=2




On 06/12/2012 05:55 PM, Kautuk Consul wrote:
> Hi,
> 
> Can you please review this patch ?
> 
> Many archs have actually accepted this change so I think maybe this is okay. :)
> 
> Thanks,
> Kautuk.
> 
> On Sat, Mar 31, 2012 at 5:36 PM, Kautuk Consul <consul.kautuk@gmail.com> wrote:
>> Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99
>> (mm: retry page fault when blocking on disk transfer) and
>> commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb
>> (x86,mm: make pagefault killable)
>>
>> The above commits introduced changes into the x86 pagefault handler
>> for making the page fault handler retryable as well as killable.
>>
>> These changes reduce the mmap_sem hold time, which is crucial
>> during OOM killer invocation.
>>
>> Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
>> ---
>>  arch/parisc/mm/fault.c |   29 ++++++++++++++++++++++++-----
>>  1 files changed, 24 insertions(+), 5 deletions(-)
>>
>> diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
>> index 18162ce..bd66ed6 100644
>> --- a/arch/parisc/mm/fault.c
>> +++ b/arch/parisc/mm/fault.c
>> @@ -175,10 +175,12 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
>>        struct mm_struct *mm = tsk->mm;
>>        unsigned long acc_type;
>>        int fault;
>> +       unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
>>
>>        if (in_atomic() || !mm)
>>                goto no_context;
>>
>> +retry:
>>        down_read(&mm->mmap_sem);
>>        vma = find_vma_prev(mm, address, &prev_vma);
>>        if (!vma || address < vma->vm_start)
>> @@ -201,7 +203,12 @@ good_area:
>>         * fault.
>>         */
>>
>> -       fault = handle_mm_fault(mm, vma, address, (acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0);
>> +       fault = handle_mm_fault(mm, vma, address,
>> +                       flags | ((acc_type & VM_WRITE) ? FAULT_FLAG_WRITE : 0));
>> +
>> +       if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
>> +               return;
>> +
>>        if (unlikely(fault & VM_FAULT_ERROR)) {
>>                /*
>>                 * We hit a shared mapping outside of the file, or some
>> @@ -214,10 +221,22 @@ good_area:
>>                        goto bad_area;
>>                BUG();
>>        }
>> -       if (fault & VM_FAULT_MAJOR)
>> -               current->maj_flt++;
>> -       else
>> -               current->min_flt++;
>> +       if (flags & FAULT_FLAG_ALLOW_RETRY) {
>> +               if (fault & VM_FAULT_MAJOR)
>> +                       current->maj_flt++;
>> +               else
>> +                       current->min_flt++;
>> +               if (fault & VM_FAULT_RETRY) {
>> +                       flags &= ~FAULT_FLAG_ALLOW_RETRY;
>> +
>> +                        /* No need to up_read(&mm->mmap_sem) as we would
>> +                        * have already released it in __lock_page_or_retry
>> +                        * in mm/filemap.c.
>> +                        */
>> +
>> +                       goto retry;
>> +               }
>> +       }
>>        up_read(&mm->mmap_sem);
>>        return;
>>
>> --
>> 1.7.5.4
>>

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From - Thu Nov 08 21:08:54 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: disable preemption while flushing D- or I-caches
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It is necessary to disable preemption during cache flushes done through the
TMPALIAS region to ensure that the TLB setup is not clobbered by another flush.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 9f21ab0..79f694f 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -115,7 +115,9 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 {
 	if (PageAnon(page)) {
 		flush_tlb_page(vma, vmaddr);
+		preempt_disable();
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
+		preempt_enable();
 	}
 }
 
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index b89a85a..703ed48 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -267,9 +267,11 @@ static inline void
 __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 		   unsigned long physaddr)
 {
+	preempt_disable();
 	flush_dcache_page_asm(physaddr, vmaddr);
 	if (vma->vm_flags & VM_EXEC)
 		flush_icache_page_asm(physaddr, vmaddr);
+	preempt_enable();
 }
 
 void flush_dcache_page(struct page *page)
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This patch unbreaks the current logic in that way, that even if
CONFIG_DISCONTIGMEM isn't set, the user may be informed, that he should turn on
CONFIG_DISCONTIGMEM for his machine.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index e67eb9c..31835b9 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -1,9 +1,10 @@
 #ifndef _PARISC_MMZONE_H
 #define _PARISC_MMZONE_H
 
+#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
+
 #ifdef CONFIG_DISCONTIGMEM
 
-#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
 extern int npmem_ranges;
 
 struct node_map_data {
@@ -60,7 +61,5 @@ static inline int pfn_valid(int pfn)
 	return 0;
 }
 
-#else /* !CONFIG_DISCONTIGMEM */
-#define MAX_PHYSMEM_RANGES 	1 
 #endif
 #endif /* _PARISC_MMZONE_H */
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: space register variables need to be in native length
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Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index fd05170..52c85b2 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -312,7 +312,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #if DEBUG_SIG
 	/* Assert that we're flushing in the correct space... */
 	{
-		int sid;
+		unsigned long sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
 		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
 		       sid, frame->tramp);
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: ensure that mmapped shared pages are aligned at
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Author: John David Anglin <dave.anglin@bell.net>

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index f76c108..a047b32 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -94,11 +94,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
--
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Subject: [PATCH] parisc: Pass the 5th and 6th argument for on the stack for
 32bit ptraced processes too
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Author: John David Anglin <dave.anglin@bell.net>

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 86742df..c893ec4 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -309,10 +309,13 @@ tracesys_next:
 	LDREG   TASK_PT_GR25(%r1), %r25
 	LDREG   TASK_PT_GR24(%r1), %r24
 	LDREG   TASK_PT_GR23(%r1), %r23
-#ifdef CONFIG_64BIT
 	LDREG   TASK_PT_GR22(%r1), %r22
 	LDREG   TASK_PT_GR21(%r1), %r21
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
+#else
+	stw	%r22, -52(%r30)			/* 5th argument */
+	stw	%r21, -56(%r30)			/* 6th argument */
 #endif
 
 	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
--
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Pass the 5th and 6th argument for on the stack
 for 32bit ptraced processes too
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This patch was originally submitted by Al Viro:
https://patchwork.kernel.org/patch/1853531/


On 02/03/2013 12:46 AM, Helge Deller wrote:
> Author: John David Anglin <dave.anglin@bell.net>
> 
> Signed-off-by: John David Anglin <dave.anglin@bell.net>
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> index 86742df..c893ec4 100644
> --- a/arch/parisc/kernel/syscall.S
> +++ b/arch/parisc/kernel/syscall.S
> @@ -309,10 +309,13 @@ tracesys_next:
>  	LDREG   TASK_PT_GR25(%r1), %r25
>  	LDREG   TASK_PT_GR24(%r1), %r24
>  	LDREG   TASK_PT_GR23(%r1), %r23
> -#ifdef CONFIG_64BIT
>  	LDREG   TASK_PT_GR22(%r1), %r22
>  	LDREG   TASK_PT_GR21(%r1), %r21
> +#ifdef CONFIG_64BIT
>  	ldo	-16(%r30),%r29			/* Reference param save area */
> +#else
> +	stw	%r22, -52(%r30)			/* 5th argument */
> +	stw	%r21, -56(%r30)			/* 6th argument */
>  #endif
>  
>  	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
> 

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Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fixes and cleanups in page cache flushing (1/4)
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Author: John David Anglin <dave.anglin@bell.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:4785
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This is the first patch in a series of 4, with which the page cache flushing of
parisc will gets fixed and enhanced. This even fixes the nasty "minifail" bug
(http://wiki.parisc-linux.org/TestCases?highlight=%28minifail%29) which
prevented parisc to stay an official debian port.  Basically the flush in
copy_user_page together with the TLB patch from commit
7139bc1579901b53db7e898789e916ee2fb52d78 is what fixes the minifail bug. 

This patch still uses the TMPALIAS approach.  The new copy_user_page
implementation calls flush_dcache_page_asm to flush the user dcache page
(crucial for minifail fix) via a kernel TMPALIAS mapping.  After that, it just
copies the page using the kernel mapping.  It does a final flush if needed.
Generally it is hard to avoid doing some cache flushes using the kernel mapping
(e.g., copy_to_user_page and copy_from_user_page).

This patch depends on a subsequent change to pacache.S implementing
clear_page_asm and copy_page_asm.  These are optimized routines to clear and
copy a page.  The calls in clear_user_page and copy_user_page could be replaced
by calls to memset and memcpy, respectively.  I tested prefetch optimizations
in clear_page_asm and copy_page_asm but didn't see any significant performance
improvement on rp3440.  I'm not sure if these are routines are significantly
faster than memset and/or memcpy, but they are there for further performance
evaluation. 

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index 4e0e7db..d9812d8 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -21,15 +21,27 @@
 #include <asm/types.h>
 #include <asm/cache.h>
 
-#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
+#define clear_page(page)	clear_page_asm((void *)(page))
+#define copy_page(to, from)	copy_page_asm((void *)(to), (void *)(from))
 
 struct page;
 
-void copy_user_page_asm(void *to, void *from);
+void clear_page_asm(void *page);
+void copy_page_asm(void *to, void *from);
+void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			   struct page *pg);
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
+
+/* #define CONFIG_PARISC_TMPALIAS */
+
+#ifdef CONFIG_PARISC_TMPALIAS
+void clear_user_highpage(struct page *page, unsigned long vaddr);
+#define clear_user_highpage clear_user_highpage
+struct vm_area_struct;
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma);
+#define __HAVE_ARCH_COPY_USER_HIGHPAGE
+#endif
 
 /*
  * These are used to make use of C type-checking..

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index b89a85a..703ed48 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -329,17 +331,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
-	unsigned long flags;
-	/* This function is implemented in assembly in pacache.S */
-	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
-	purge_tlb_start(flags);
-	__clear_user_page_asm(page, vaddr);
-	purge_tlb_end(flags);
-}
-
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
@@ -373,20 +364,9 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
 
-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
-
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
-{
-	unsigned long flags;
-
-	purge_kernel_dcache_page((unsigned long)page);
-	purge_tlb_start(flags);
-	pdtlb_kernel(page);
-	purge_tlb_end(flags);
-	clear_user_page_asm(page, vaddr);
-}
-EXPORT_SYMBOL(clear_user_page);
+extern void purge_kernel_dcache_page_asm(unsigned long);
+extern void clear_user_page_asm(void *, unsigned long);
+extern void copy_user_page_asm(void *, void *, unsigned long);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
@@ -399,11 +379,26 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
+void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
+{
+	clear_page_asm(vto);
+	if (!parisc_requires_coherency())
+		flush_kernel_dcache_page_asm(vto);
+}
+EXPORT_SYMBOL(clear_user_page);
+
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-		    struct page *pg)
+	struct page *pg)
 {
-	/* no coherency needed (all in kmap/kunmap) */
-	copy_user_page_asm(vto, vfrom);
+	/* Copy using kernel mapping.  No coherency is needed
+	   (all in kmap/kunmap) on machines that don't support
+	   non-equivalent aliasing.  However, the `from' page
+	   needs to be flushed before it can be accessed through
+	   the kernel mapping. */
+	preempt_disable();
+	flush_dcache_page_asm(__pa(vfrom), vaddr);
+	preempt_enable();
+	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
 		flush_kernel_dcache_page_asm(vto);
 }
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index ceec85d..6795dc6 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -157,5 +157,6 @@ extern void _mcount(void);
 EXPORT_SYMBOL(_mcount);
 #endif
 
-/* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+/* from pacache.S -- needed for clear/copy_page */
+EXPORT_SYMBOL(clear_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: fixes and cleanups in page cache flushing (2/4)
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	John David Anglin <dave.anglin@bell.net>
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Author: John David Anglin <dave.anglin@bell.net>

Implement clear_page_asm and copy_page_asm. These are optimized routines to
clear and copy a page.  I tested prefetch optimizations in clear_page_asm and
copy_page_asm but didn't see any significant performance improvement on rp3440.
I'm not sure if these are routines are significantly faster than memset and/or
memcpy, but they are there for further performance evaluation. 

TLB purge operations on PA 1.X SMP machines are now serialized with the help of
the new tlb_lock() and tlb_unlock() macros, since on some PA-RISC machines, TLB
purges need to be serialized in software.  Obviously, lock isn't needed in UP
kernels.  On PA 2.0 machines, there is a local TLB instruction which is much
less disruptive to the memory subsystem.  No lock is needed for local purge.

Loops are also unrolled in flush_instruction_cache_local and
flush_data_cache_local.

The implementation of what used to be copy_user_page (now copy_user_page_asm)
is now fixed. Additionally 64-bit support is now added. Read the preceding
comment which I didn't change.  I left the comment but it is now inaccurate.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 5d7218a..312b484 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -199,7 +199,6 @@ ENTRY(flush_instruction_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
 	load32		cache_info, %r1
 
 	/* Flush Instruction Cache */
@@ -208,7 +207,8 @@ ENTRY(flush_instruction_cache_local)
 	LDREG		ICACHE_STRIDE(%r1), %arg1
 	LDREG		ICACHE_COUNT(%r1), %arg2
 	LDREG		ICACHE_LOOP(%r1), %arg3
-	rsm             PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	mtsp		%r0, %sr1
 	addib,COND(=)		-1, %arg3, fioneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fisync	/* If loop < 0, do sync */
 
@@ -220,7 +220,33 @@ fimanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(<=),n	-1, %arg2, fisync	/* Outer loop decr */
 
 fioneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fioneloop	/* Outer loop count decr */
+	/* Some implementations may flush with a single fice instruction */
+	cmpib,COND(>>=),n	15, %arg2, fioneloop2
+
+fioneloop1:
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	fice,m		%arg1(%sr1, %arg0)
+	addib,COND(>)	-16, %arg2, fioneloop1
+	fice,m		%arg1(%sr1, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fisync	/* Predict branch taken */
+
+fioneloop2:
+	addib,COND(>)	-1, %arg2, fioneloop2	/* Outer loop count decr */
 	fice,m		%arg1(%sr1, %arg0)	/* Fice for one loop */
 
 fisync:
@@ -240,8 +266,7 @@ ENTRY(flush_data_cache_local)
 	.callinfo NO_CALLS
 	.entry
 
-	mtsp		%r0, %sr1
-	load32 		cache_info, %r1
+	load32		cache_info, %r1
 
 	/* Flush Data Cache */
 
@@ -249,7 +274,8 @@ ENTRY(flush_data_cache_local)
 	LDREG		DCACHE_STRIDE(%r1), %arg1
 	LDREG		DCACHE_COUNT(%r1), %arg2
 	LDREG		DCACHE_LOOP(%r1), %arg3
-	rsm		PSW_SM_I, %r22
+	rsm		PSW_SM_I, %r22		/* No mmgt ops during loop*/
+	mtsp		%r0, %sr1
 	addib,COND(=)		-1, %arg3, fdoneloop	/* Preadjust and test */
 	movb,<,n	%arg3, %r31, fdsync	/* If loop < 0, do sync */
 
@@ -261,7 +287,33 @@ fdmanyloop:					/* Loop if LOOP >= 2 */
 	addib,COND(<=),n	-1, %arg2, fdsync	/* Outer loop decr */
 
 fdoneloop:					/* Loop if LOOP = 1 */
-	addib,COND(>)		-1, %arg2, fdoneloop	/* Outer loop count decr */
+	/* Some implementations may flush with a single fdce instruction */
+	cmpib,COND(>>=),n	15, %arg2, fdoneloop2
+
+fdoneloop1:
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	fdce,m		%arg1(%sr1, %arg0)
+	addib,COND(>)	-16, %arg2, fdoneloop1
+	fdce,m		%arg1(%sr1, %arg0)
+
+	/* Check if done */
+	cmpb,COND(=),n	%arg2, %r0, fdsync	/* Predict branch taken */
+
+fdoneloop2:
+	addib,COND(>)	-1, %arg2, fdoneloop2	/* Outer loop count decr */
 	fdce,m		%arg1(%sr1, %arg0)	/* Fdce for one loop */
 
 fdsync:
@@ -277,7 +329,104 @@ ENDPROC(flush_data_cache_local)
 
 	.align	16
 
-ENTRY(copy_user_page_asm)
+/* Macros to serialize TLB purge operations on SMP.  */
+
+	.macro	tlb_lock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldil		L%pa_tlb_lock,%r1
+	ldo		R%pa_tlb_lock(%r1),\la
+	rsm		PSW_SM_I,\flags
+1:	LDCW		0(\la),\tmp
+	cmpib,<>,n	0,\tmp,3f
+2:	ldw		0(\la),\tmp
+	cmpb,<>		%r0,\tmp,1b
+	nop
+	b,n		2b
+3:
+#endif
+	.endm
+
+	.macro	tlb_unlock	la,flags,tmp
+#ifdef CONFIG_SMP
+	ldi		1,\tmp
+	stw		\tmp,0(\la)
+	mtsm		\flags
+#endif
+	.endm
+
+/* Clear page using kernel mapping.  */
+
+ENTRY(clear_page_asm)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+#ifdef CONFIG_64BIT
+
+	/* Unroll the loop.  */
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:
+	std		%r0, 0(%r26)
+	std		%r0, 8(%r26)
+	std		%r0, 16(%r26)
+	std		%r0, 24(%r26)
+	std		%r0, 32(%r26)
+	std		%r0, 40(%r26)
+	std		%r0, 48(%r26)
+	std		%r0, 56(%r26)
+	std		%r0, 64(%r26)
+	std		%r0, 72(%r26)
+	std		%r0, 80(%r26)
+	std		%r0, 88(%r26)
+	std		%r0, 96(%r26)
+	std		%r0, 104(%r26)
+	std		%r0, 112(%r26)
+	std		%r0, 120(%r26)
+
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
+
+#else
+
+	/*
+	 * Note that until (if) we start saving the full 64-bit register
+	 * values on interrupt, we can't use std on a 32 bit kernel.
+	 */
+	ldi		(PAGE_SIZE / 64), %r1
+
+1:
+	stw		%r0, 0(%r26)
+	stw		%r0, 4(%r26)
+	stw		%r0, 8(%r26)
+	stw		%r0, 12(%r26)
+	stw		%r0, 16(%r26)
+	stw		%r0, 20(%r26)
+	stw		%r0, 24(%r26)
+	stw		%r0, 28(%r26)
+	stw		%r0, 32(%r26)
+	stw		%r0, 36(%r26)
+	stw		%r0, 40(%r26)
+	stw		%r0, 44(%r26)
+	stw		%r0, 48(%r26)
+	stw		%r0, 52(%r26)
+	stw		%r0, 56(%r26)
+	stw		%r0, 60(%r26)
+
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		64(%r26), %r26
+#endif
+	bv		%r0(%r2)
+	nop
+	.exit
+
+	.procend
+ENDPROC(clear_page_asm)
+
+/* Copy page using kernel mapping.  */
+
+ENTRY(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -285,18 +434,14 @@ ENTRY(copy_user_page_asm)
 #ifdef CONFIG_64BIT
 	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
 	 * Unroll the loop by hand and arrange insn appropriately.
-	 * GCC probably can do this just as well.
+	 * Prefetch doesn't improve performance on rp3440.
+	 * GCC probably can do this just as well...
 	 */
 
-	ldd		0(%r25), %r19
 	ldi		(PAGE_SIZE / 128), %r1
 
-	ldw		64(%r25), %r0		/* prefetch 1 cacheline ahead */
-	ldw		128(%r25), %r0		/* prefetch 2 */
-
-1:	ldd		8(%r25), %r20
-	ldw		192(%r25), %r0		/* prefetch 3 */
-	ldw		256(%r25), %r0		/* prefetch 4 */
+1:	ldd		0(%r25), %r19
+	ldd		8(%r25), %r20
 
 	ldd		16(%r25), %r21
 	ldd		24(%r25), %r22
@@ -330,20 +475,16 @@ ENTRY(copy_user_page_asm)
 
 	ldd		112(%r25), %r21
 	ldd		120(%r25), %r22
+	ldo		128(%r25), %r25
 	std		%r19, 96(%r26)
 	std		%r20, 104(%r26)
 
-	ldo		128(%r25), %r25
 	std		%r21, 112(%r26)
 	std		%r22, 120(%r26)
-	ldo		128(%r26), %r26
 
-	/* conditional branches nullify on forward taken branch, and on
-	 * non-taken backward branch. Note that .+4 is a backwards branch.
-	 * The ldd should only get executed if the branch is taken.
-	 */
-	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
-	ldd		0(%r25), %r19		/* start next loads */
+	/* Note reverse branch hint for addib is taken.  */
+	addib,COND(>),n	-1, %r1, 1b
+	ldo		128(%r26), %r26
 
 #else
 
@@ -399,7 +540,7 @@ ENTRY(copy_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,8 +563,6 @@ ENDPROC(copy_user_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
-
 	/*
 	 * We can't do this since copy_user_page is used to bring in
 	 * file data that might have instructions. Since the data would
@@ -435,6 +574,7 @@ ENDPROC(copy_user_page_asm)
 	 * use it if more information is passed into copy_user_page().
 	 * Have to do some measurements to see if it is worthwhile to
 	 * lobby for such a change.
+	 *
 	 */
 
 ENTRY(copy_user_page_asm)
@@ -442,16 +582,21 @@ ENTRY(copy_user_page_asm)
 	.callinfo NO_CALLS
 	.entry
 
+	/* Convert virtual `to' and `from' addresses to physical addresses.
+	   Move `from' physical address to non shadowed register.  */
 	ldil		L%(__PAGE_OFFSET), %r1
 	sub		%r26, %r1, %r26
-	sub		%r25, %r1, %r23		/* move physical addr into non shadowed reg */
+	sub		%r25, %r1, %r23
 
 	ldil		L%(TMPALIAS_MAP_START), %r28
 	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
-	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+#endif
+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
+	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
@@ -466,10 +611,76 @@ ENTRY(copy_user_page_asm)
 
 	/* Purge any old translations */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+	pdtlb,l		0(%r29)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
+#ifdef CONFIG_64BIT
+	/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
+	 * Unroll the loop by hand and arrange insn appropriately.
+	 * GCC probably can do this just as well.
+	 */
 
-	ldi		64, %r1
+	ldd		0(%r29), %r19
+	ldi		(PAGE_SIZE / 128), %r1
+
+1:	ldd		8(%r29), %r20
+
+	ldd		16(%r29), %r21
+	ldd		24(%r29), %r22
+	std		%r19, 0(%r28)
+	std		%r20, 8(%r28)
+
+	ldd		32(%r29), %r19
+	ldd		40(%r29), %r20
+	std		%r21, 16(%r28)
+	std		%r22, 24(%r28)
+
+	ldd		48(%r29), %r21
+	ldd		56(%r29), %r22
+	std		%r19, 32(%r28)
+	std		%r20, 40(%r28)
+
+	ldd		64(%r29), %r19
+	ldd		72(%r29), %r20
+	std		%r21, 48(%r28)
+	std		%r22, 56(%r28)
+
+	ldd		80(%r29), %r21
+	ldd		88(%r29), %r22
+	std		%r19, 64(%r28)
+	std		%r20, 72(%r28)
+
+	ldd		 96(%r29), %r19
+	ldd		104(%r29), %r20
+	std		%r21, 80(%r28)
+	std		%r22, 88(%r28)
+
+	ldd		112(%r29), %r21
+	ldd		120(%r29), %r22
+	std		%r19, 96(%r28)
+	std		%r20, 104(%r28)
+
+	ldo		128(%r29), %r29
+	std		%r21, 112(%r28)
+	std		%r22, 120(%r28)
+	ldo		128(%r28), %r28
+
+	/* conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 * The ldd should only get executed if the branch is taken.
+	 */
+	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
+	ldd		0(%r29), %r19		/* start next loads */
+
+#else
+	ldi		(PAGE_SIZE / 64), %r1
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,9 +691,7 @@ ENTRY(copy_user_page_asm)
 	 * use ldd/std on a 32 bit kernel.
 	 */
 
-
-1:
-	ldw		0(%r29), %r19
+1:	ldw		0(%r29), %r19
 	ldw		4(%r29), %r20
 	ldw		8(%r29), %r21
 	ldw		12(%r29), %r22
@@ -515,8 +724,10 @@ ENTRY(copy_user_page_asm)
 	stw		%r21, 56(%r28)
 	stw		%r22, 60(%r28)
 	ldo		64(%r28), %r28
+
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
+#endif
 
 	bv		%r0(%r2)
 	nop
@@ -524,9 +735,8 @@ ENTRY(copy_user_page_asm)
 
 	.procend
 ENDPROC(copy_user_page_asm)
-#endif
 
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -550,7 +760,13 @@ ENTRY(__clear_user_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 #ifdef CONFIG_64BIT
 	ldi		(PAGE_SIZE / 128), %r1
@@ -580,8 +796,7 @@ ENTRY(__clear_user_page_asm)
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
 
-1:
-	stw		%r0, 0(%r28)
+1:	stw		%r0, 0(%r28)
 	stw		%r0, 4(%r28)
 	stw		%r0, 8(%r28)
 	stw		%r0, 12(%r28)
@@ -606,7 +821,7 @@ ENTRY(__clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
 
 ENTRY(flush_dcache_page_asm)
 	.proc
@@ -630,7 +845,13 @@ ENTRY(flush_dcache_page_asm)
 
 	/* Purge any old translation */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
 	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), %r1
@@ -663,8 +884,17 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		%r1(%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r25)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r25)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pdtlb		(%r25)
+	nop
 	.exit
 
 	.procend
@@ -692,7 +922,13 @@ ENTRY(flush_icache_page_asm)
 
 	/* Purge any old translation */
 
-	pitlb		(%sr4,%r28)
+#ifdef CONFIG_PA20
+	pitlb,l         %r0(%sr4,%r28)
+#else
+	tlb_lock        %r20,%r21,%r22
+	pitlb           (%sr4,%r28)
+	tlb_unlock      %r20,%r21,%r22
+#endif
 
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r1
@@ -727,8 +963,17 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r1(%sr4,%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pitlb,l         %r0(%sr4,%r25)
+#else
+	tlb_lock        %r20,%r21,%r22
+	pitlb           (%sr4,%r25)
+	tlb_unlock      %r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
-	pitlb		(%sr4,%r25)
+	nop
 	.exit
 
 	.procend
@@ -777,7 +1022,7 @@ ENTRY(flush_kernel_dcache_page_asm)
 	.procend
 ENDPROC(flush_kernel_dcache_page_asm)
 
-ENTRY(purge_kernel_dcache_page)
+ENTRY(purge_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -817,7 +1062,7 @@ ENTRY(purge_kernel_dcache_page)
 	.exit
 
 	.procend
-ENDPROC(purge_kernel_dcache_page)
+ENDPROC(purge_kernel_dcache_page_asm)
 
 ENTRY(flush_user_dcache_range_asm)
 	.proc
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fixes and cleanups in page cache flushing (3/4)
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	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
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Author: John David Anglin <dave.anglin@bell.net>

flush_cache_mm, for the non current case also uses flush_dcache_page_asm
and flush_icache_page_asm which are TMPALIAS flushes.

For the non current case, the algorithm used by get_ptep is derived from the
vmalloc_to_page implementation in vmalloc.c.  It is essentially a generic page
table lookup.  The other alternative was to duplicate the lookup in entry.S.
The break point for switching to a full cache flush is somewhat arbitrary.  The
same approach is used in flush_cache_range for non current case.  In a GCC
build and check, many small programs are executed and this change provided a
significant performance enhancement, e.g. GCC build time was cut almost in half
on a rp3440 at j4.  Previously, we always flushed the entire cache.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index b89a85a..bce3b85 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -476,8 +476,66 @@ void flush_cache_all(void)
 	on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
 }
 
+static inline unsigned long mm_total_size(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long usize = 0;
+
+	for (vma = mm->mmap; vma; vma = vma->vm_next)
+		usize += vma->vm_end - vma->vm_start;
+	return usize;
+}
+
+static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
+{
+	pte_t *ptep = NULL;
+
+	if (!pgd_none(*pgd)) {
+		pud_t *pud = pud_offset(pgd, addr);
+		if (!pud_none(*pud)) {
+			pmd_t *pmd = pmd_offset(pud, addr);
+			if (!pmd_none(*pmd))
+				ptep = pte_offset_map(pmd, addr);
+		}
+	}
+	return ptep;
+}
+
 void flush_cache_mm(struct mm_struct *mm)
 {
+	/* Flushing the whole cache on each cpu takes forever on
+	   rp3440, etc.  So, avoid it if the mm isn't too big.  */
+	if (mm_total_size(mm) < parisc_cache_flush_threshold) {
+		struct vm_area_struct *vma;
+
+		if (mm->context == mfsp(3)) {
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				flush_user_dcache_range_asm(vma->vm_start,
+					vma->vm_end);
+				if (vma->vm_flags & VM_EXEC)
+					flush_user_icache_range_asm(
+					  vma->vm_start, vma->vm_end);
+			}
+		} else {
+			pgd_t *pgd = mm->pgd;
+
+			for (vma = mm->mmap; vma; vma = vma->vm_next) {
+				unsigned long addr;
+
+				for (addr = vma->vm_start; addr < vma->vm_end;
+				     addr += PAGE_SIZE) {
+					pte_t *ptep = get_ptep(pgd, addr);
+					if (ptep != NULL) {
+						pte_t pte = *ptep;
+						__flush_cache_page(vma, addr,
+						  page_to_phys(pte_page(pte)));
+					}
+				}
+			}
+		}
+		return;
+	}
+
 #ifdef CONFIG_SMP
 	flush_cache_all();
 #else
@@ -503,20 +561,36 @@ flush_user_icache_range(unsigned long start, unsigned long end)
 		flush_instruction_cache();
 }
 
-
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	int sr3;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
+	if ((end - start) < parisc_cache_flush_threshold) {
+		if (vma->vm_mm->context == mfsp(3)) {
+			flush_user_dcache_range_asm(start, end);
+			if (vma->vm_flags & VM_EXEC)
+				flush_user_icache_range_asm(start, end);
+		} else {
+			unsigned long addr;
+			pgd_t *pgd = vma->vm_mm->pgd;
+
+			for (addr = start & PAGE_MASK; addr < end;
+			     addr += PAGE_SIZE) {
+				pte_t *ptep = get_ptep(pgd, addr);
+				if (ptep != NULL) {
+					pte_t pte = *ptep;
+					flush_cache_page(vma,
+					   addr, pte_pfn(pte));
+				}
+			}
+		}
 	} else {
+#ifdef CONFIG_SMP
 		flush_cache_all();
+#else
+		flush_cache_all_local();
+#endif
 	}
 }
 
--
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Subject: [PATCH] parisc: fixes and cleanups in page cache flushing (4/4)
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Author: John David Anglin <dave.anglin@bell.net>

CONFIG_PARISC_TMPALIAS enables clear_user_highpage and copy_user_highpage.
These are essentially alternative implementations of clear_user_page and
copy_user_page.  They don't have anything to do with x86 high pages, but they
build on the infrastructure to save a few instructions.  Read the comment in
clear_user_highpage as it is very important to the implementation.  For this
reason, there isn't any gain in using the TMPALIAS/highpage approach.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index b89a85a..703ed48 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -529,3 +595,67 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
 
 }
+
+#ifdef CONFIG_PARISC_TMPALIAS
+
+void clear_user_highpage(struct page *page, unsigned long vaddr)
+{
+	void *vto;
+	unsigned long flags;
+
+	/* Clear using TMPALIAS region.  The page doesn't need to
+	   be flushed but the kernel mapping needs to be purged.  */
+
+	vto = kmap_atomic(page, KM_USER0);
+
+	/* The PA-RISC 2.0 Architecture book states on page F-6:
+	   "Before a write-capable translation is enabled, *all*
+	   non-equivalently-aliased translations must be removed
+	   from the page table and purged from the TLB.  (Note
+	   that the caches are not required to be flushed at this
+	   time.)  Before any non-equivalent aliased translation
+	   is re-enabled, the virtual address range for the writeable
+	   page (the entire page) must be flushed from the cache,
+	   and the write-capable translation removed from the page
+	   table and purged from the TLB."  */
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	purge_tlb_end(flags);
+	preempt_disable();
+	clear_user_page_asm(vto, vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+void copy_user_highpage(struct page *to, struct page *from,
+	unsigned long vaddr, struct vm_area_struct *vma)
+{
+	void *vfrom, *vto;
+	unsigned long flags;
+
+	/* Copy using TMPALIAS region.  This has the advantage
+	   that the `from' page doesn't need to be flushed.  However,
+	   the `to' page must be flushed in copy_user_page_asm since
+	   it can be used to bring in executable code.  */
+
+	vfrom = kmap_atomic(from, KM_USER0);
+	vto = kmap_atomic(to, KM_USER1);
+
+	purge_kernel_dcache_page_asm((unsigned long)vto);
+	purge_tlb_start(flags);
+	pdtlb_kernel(vto);
+	pdtlb_kernel(vfrom);
+	purge_tlb_end(flags);
+	preempt_disable();
+	copy_user_page_asm(vto, vfrom, vaddr);
+	flush_dcache_page_asm(__pa(vto), vaddr);
+	preempt_enable();
+
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER1); */
+	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
+}
+
+#endif /* CONFIG_PARISC_TMPALIAS */
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From - Thu Nov 08 21:08:55 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: fixes and cleanups in page cache flushing (1/4)
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Need to mention here:

Author of this patch series is:
Author: John David Anglin <dave.anglin@bell.net>

When I sent the mail the "Author" tag vanished in the mail header...

Helge

On 02/03/2013 11:59 PM, Helge Deller wrote:
> This is the first patch in a series of 4, with which the page cache flushing of
> parisc will gets fixed and enhanced. This even fixes the nasty "minifail" bug
> (http://wiki.parisc-linux.org/TestCases?highlight=%28minifail%29) which
> prevented parisc to stay an official debian port.  Basically the flush in
> copy_user_page together with the TLB patch from commit
> 7139bc1579901b53db7e898789e916ee2fb52d78 is what fixes the minifail bug. 
> 
> This patch still uses the TMPALIAS approach.  The new copy_user_page
> implementation calls flush_dcache_page_asm to flush the user dcache page
> (crucial for minifail fix) via a kernel TMPALIAS mapping.  After that, it just
> copies the page using the kernel mapping.  It does a final flush if needed.
> Generally it is hard to avoid doing some cache flushes using the kernel mapping
> (e.g., copy_to_user_page and copy_from_user_page).
> 
> This patch depends on a subsequent change to pacache.S implementing
> clear_page_asm and copy_page_asm.  These are optimized routines to clear and
> copy a page.  The calls in clear_user_page and copy_user_page could be replaced
> by calls to memset and memcpy, respectively.  I tested prefetch optimizations
> in clear_page_asm and copy_page_asm but didn't see any significant performance
> improvement on rp3440.  I'm not sure if these are routines are significantly
> faster than memset and/or memcpy, but they are there for further performance
> evaluation. 
> 
> Signed-off-by: John David Anglin <dave.anglin@bell.net>
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> 
> diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
> index 4e0e7db..d9812d8 100644
> --- a/arch/parisc/include/asm/page.h
> +++ b/arch/parisc/include/asm/page.h
> @@ -21,15 +21,27 @@
>  #include <asm/types.h>
>  #include <asm/cache.h>
>  
> -#define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
> -#define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))
> +#define clear_page(page)	clear_page_asm((void *)(page))
> +#define copy_page(to, from)	copy_page_asm((void *)(to), (void *)(from))
>  
>  struct page;
>  
> -void copy_user_page_asm(void *to, void *from);
> +void clear_page_asm(void *page);
> +void copy_page_asm(void *to, void *from);
> +void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
>  void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
>  			   struct page *pg);
> -void clear_user_page(void *page, unsigned long vaddr, struct page *pg);
> +
> +/* #define CONFIG_PARISC_TMPALIAS */
> +
> +#ifdef CONFIG_PARISC_TMPALIAS
> +void clear_user_highpage(struct page *page, unsigned long vaddr);
> +#define clear_user_highpage clear_user_highpage
> +struct vm_area_struct;
> +void copy_user_highpage(struct page *to, struct page *from,
> +	unsigned long vaddr, struct vm_area_struct *vma);
> +#define __HAVE_ARCH_COPY_USER_HIGHPAGE
> +#endif
>  
>  /*
>   * These are used to make use of C type-checking..
> 
> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
> index b89a85a..703ed48 100644
> --- a/arch/parisc/kernel/cache.c
> +++ b/arch/parisc/kernel/cache.c
> @@ -329,17 +331,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
>  EXPORT_SYMBOL(flush_data_cache_local);
>  EXPORT_SYMBOL(flush_kernel_icache_range_asm);
>  
> -void clear_user_page_asm(void *page, unsigned long vaddr)
> -{
> -	unsigned long flags;
> -	/* This function is implemented in assembly in pacache.S */
> -	extern void __clear_user_page_asm(void *page, unsigned long vaddr);
> -
> -	purge_tlb_start(flags);
> -	__clear_user_page_asm(page, vaddr);
> -	purge_tlb_end(flags);
> -}
> -
>  #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
>  int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
>  
> @@ -373,20 +364,9 @@ void __init parisc_setup_cache_timing(void)
>  	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
>  }
>  
> -extern void purge_kernel_dcache_page(unsigned long);
> -extern void clear_user_page_asm(void *page, unsigned long vaddr);
> -
> -void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
> -{
> -	unsigned long flags;
> -
> -	purge_kernel_dcache_page((unsigned long)page);
> -	purge_tlb_start(flags);
> -	pdtlb_kernel(page);
> -	purge_tlb_end(flags);
> -	clear_user_page_asm(page, vaddr);
> -}
> -EXPORT_SYMBOL(clear_user_page);
> +extern void purge_kernel_dcache_page_asm(unsigned long);
> +extern void clear_user_page_asm(void *, unsigned long);
> +extern void copy_user_page_asm(void *, void *, unsigned long);
>  
>  void flush_kernel_dcache_page_addr(void *addr)
>  {
> @@ -399,11 +379,26 @@ void flush_kernel_dcache_page_addr(void *addr)
>  }
>  EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
>  
> +void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
> +{
> +	clear_page_asm(vto);
> +	if (!parisc_requires_coherency())
> +		flush_kernel_dcache_page_asm(vto);
> +}
> +EXPORT_SYMBOL(clear_user_page);
> +
>  void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
> -		    struct page *pg)
> +	struct page *pg)
>  {
> -	/* no coherency needed (all in kmap/kunmap) */
> -	copy_user_page_asm(vto, vfrom);
> +	/* Copy using kernel mapping.  No coherency is needed
> +	   (all in kmap/kunmap) on machines that don't support
> +	   non-equivalent aliasing.  However, the `from' page
> +	   needs to be flushed before it can be accessed through
> +	   the kernel mapping. */
> +	preempt_disable();
> +	flush_dcache_page_asm(__pa(vfrom), vaddr);
> +	preempt_enable();
> +	copy_page_asm(vto, vfrom);
>  	if (!parisc_requires_coherency())
>  		flush_kernel_dcache_page_asm(vto);
>  }
> diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
> index ceec85d..6795dc6 100644
> --- a/arch/parisc/kernel/parisc_ksyms.c
> +++ b/arch/parisc/kernel/parisc_ksyms.c
> @@ -157,5 +157,6 @@ extern void _mcount(void);
>  EXPORT_SYMBOL(_mcount);
>  #endif
>  
> -/* from pacache.S -- needed for copy_page */
> -EXPORT_SYMBOL(copy_user_page_asm);
> +/* from pacache.S -- needed for clear/copy_page */
> +EXPORT_SYMBOL(clear_page_asm);
> +EXPORT_SYMBOL(copy_page_asm);
> 

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Subject: Re: [PATCH] parisc: fixes and cleanups in page cache flushing (1/4)
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On Sun, Feb 3, 2013 at 3:04 PM, Helge Deller <deller@gmx.de> wrote:
> Need to mention here:
>
> Author of this patch series is:
> Author: John David Anglin <dave.anglin@bell.net>
>
> When I sent the mail the "Author" tag vanished in the mail header...
>
> Helge

Send with git send-email. It manages all of this for you.
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Subject: Re: [PATCH] parisc: fixes and cleanups in page cache flushing (1/4)
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Helge Deller wrote:
> This is the first patch in a series of 4, with which the page cache 
> flushing of
> parisc will gets fixed and enhanced. This even fixes the nasty 
> "minifail" bug
> (http://wiki.parisc-linux.org/TestCases?highlight=%28minifail%29) 
> which
> prevented parisc to stay an official debian port.  Basically the 
> flush in
> copy_user_page together with the TLB patch from commit
> 7139bc1579901b53db7e898789e916ee2fb52d78 is what fixes the minifail 
> bug.

Is this series expected to fix the thread related problems I see in the 
git testsuite?

Eike
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From - Thu Nov 08 21:08:55 2018
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Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.hexagon,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
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The IRQ_PER_CPU Kconfig symbol was removed in the following commit:

Commit 6a58fb3bad099076f36f0f30f44507bc3275cdb6 ("genirq: Remove
CONFIG_IRQ_PER_CPU") merged in v2.6.39-rc1.

But IRQ_PER_CPU wasn't removed from any of the architecture Kconfig
files where it was defined or selected. It's completely unused so remove
the remaining references.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: Tony Luck <tony.luck@intel.com>
Acked-by: Richard Kuo <rkuo@codeaurora.org>
---

Does anybody want to pick this patch up?

 arch/blackfin/Kconfig |    1 -
 arch/hexagon/Kconfig  |    1 -
 arch/ia64/Kconfig     |    1 -
 arch/mips/Kconfig     |    1 -
 arch/parisc/Kconfig   |    1 -
 arch/powerpc/Kconfig  |    1 -
 arch/sh/Kconfig       |    3 ---
 7 files changed, 0 insertions(+), 9 deletions(-)

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index b6f3ad5..c709715 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -38,7 +38,6 @@ config BLACKFIN
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_ATOMIC64
 	select GENERIC_IRQ_PROBE
-	select IRQ_PER_CPU if SMP
 	select USE_GENERIC_SMP_HELPERS if SMP
 	select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
 	select GENERIC_SMP_IDLE_THREAD
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 0744f7d..800dd9c 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -12,7 +12,6 @@ config HEXAGON
 	# select ARCH_WANT_OPTIONAL_GPIOLIB
 	# select ARCH_REQUIRE_GPIOLIB
 	# select HAVE_CLK
-	# select IRQ_PER_CPU
 	# select GENERIC_PENDING_IRQ if SMP
 	select HAVE_IRQ_WORK
 	select GENERIC_ATOMIC64
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 3279646..00c2e88 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -29,7 +29,6 @@ config IA64
 	select ARCH_DISCARD_MEMBLOCK
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PENDING_IRQ if SMP
-	select IRQ_PER_CPU
 	select GENERIC_IRQ_SHOW
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 2ac626a..451c2e7 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2161,7 +2161,6 @@ source "mm/Kconfig"
 config SMP
 	bool "Multi-Processing support"
 	depends on SYS_SUPPORTS_SMP
-	select IRQ_PER_CPU
 	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one CPU. If you have
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index b77feff..8525be4 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -16,7 +16,6 @@ config PARISC
 	select BROKEN_RODATA
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PCI_IOMAP
-	select IRQ_PER_CPU
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_STRNCPY_FROM_USER
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 17903f1..f3d7090a 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -125,7 +125,6 @@ config PPC
 	select HAVE_GENERIC_HARDIRQS
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select SPARSE_IRQ
-	select IRQ_PER_CPU
 	select IRQ_DOMAIN
 	select GENERIC_IRQ_SHOW
 	select GENERIC_IRQ_SHOW_LEVEL
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index babc2b8..6f799ec 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -91,9 +91,6 @@ config GENERIC_CSUM
 config GENERIC_HWEIGHT
 	def_bool y
 
-config IRQ_PER_CPU
-	def_bool y
-
 config GENERIC_GPIO
 	def_bool n
 
-- 
1.7.7.6


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Subject: Re: [PATCH RESEND 1/1] arch Kconfig: remove
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On Mon, Feb 04, 2013 at 10:09:43AM +0000, James Hogan wrote:
> The IRQ_PER_CPU Kconfig symbol was removed in the following commit:
> 
> Commit 6a58fb3bad099076f36f0f30f44507bc3275cdb6 ("genirq: Remove
> CONFIG_IRQ_PER_CPU") merged in v2.6.39-rc1.
> 
> But IRQ_PER_CPU wasn't removed from any of the architecture Kconfig
> files where it was defined or selected. It's completely unused so remove
> the remaining references.
> 
> Signed-off-by: James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
> Cc: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
> Cc: Mike Frysinger <vapier-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org>
> Cc: Fenghua Yu <fenghua.yu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Cc: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
> Cc: "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
> Cc: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
> Cc: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
> Cc: Paul Mackerras <paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>
> Cc: Paul Mundt <lethal-M7jkjyW5wf5g9hUCZPvPmw@public.gmane.org>
> Acked-by: Tony Luck <tony.luck-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Acked-by: Richard Kuo <rkuo-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>

Acked-by: Paul Mundt <lethal-M7jkjyW5wf5g9hUCZPvPmw@public.gmane.org>

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From: "Helge Deller" <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: fixes and cleanups in page cache flushing (1/4)
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> Von: Rolf Eike Beer <eike-kernel@sf-tec.de>
> Helge Deller wrote:
> > This is the first patch in a series of 4, with which the page cache 
> > flushing of
> > parisc will gets fixed and enhanced. This even fixes the nasty 
> > "minifail" bug
> > (http://wiki.parisc-linux.org/TestCases?highlight=%28minifail%29) 
> > which
> > prevented parisc to stay an official debian port.  Basically the 
> > flush in
> > copy_user_page together with the TLB patch from commit
> > 7139bc1579901b53db7e898789e916ee2fb52d78 is what fixes the minifail 
> > bug.
> 
> Is this series expected to fix the thread related problems I see in the 
> git testsuite?

I expect so, if not, please let us know!

If you want to test yourself, you may check out my "testing" branch from parisc-linux.git which includes all necessary patches:
https://git.kernel.org/?p=linux/kernel/git/deller/parisc-linux.git;a=shortlog;h=refs/heads/testing

Helge
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Subject: Re: [PATCH] parisc: fixes and cleanups in page cache flushing (1/4)
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> > Von: Rolf Eike Beer <eike-kernel@sf-tec.de>
> > Helge Deller wrote:
> > > This is the first patch in a series of 4, with which the page cache 
> > > flushing of
> > > parisc will gets fixed and enhanced. This even fixes the nasty 
> > > "minifail" bug
> > > (http://wiki.parisc-linux.org/TestCases?highlight=%28minifail%29) 
> > > which
> > > prevented parisc to stay an official debian port.  Basically the 
> > > flush in
> > > copy_user_page together with the TLB patch from commit
> > > 7139bc1579901b53db7e898789e916ee2fb52d78 is what fixes the minifail 
> > > bug.
> > 
> > Is this series expected to fix the thread related problems I see in the 
> > git testsuite?
> 
> I expect so, if not, please let us know!

Ahem... actually:
MAYBE!!!

The problem is, that you probably will need an updated glibc (and maybe compiler) as well. Dave has done a lot of work to fix stuff. We have copied the most important update-packages to ftp.parisc-linux.org. To update, just make sure the following lines are in your /etc/apt/source.list file:
deb ftp://ftp.de.debian.org/debian-ports unstable main
deb ftp://ftp.parisc-linux.org/debian-ports/unstable unstable main
deb-src ftp://ftp.de.debian.org/debian unstable main

Do *not* just update to the packages of debian-ports.org. If you do that it will render your system unbootable, since the udev-package is broken and it will not find your discs at startup.

It's on my todo-list to upload further packages, update the website on how to update your system, and of course to get a buildd working...

Helge
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From - Thu Nov 08 21:08:56 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] parisc: fixes and cleanups in page cache flushing (1/4)
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On 2/4/2013 11:37 AM, Helge Deller wrote:
>>> Von: Rolf Eike Beer <eike-kernel@sf-tec.de>
>>> Helge Deller wrote:
>>>> This is the first patch in a series of 4, with which the page cache
>>>> flushing of
>>>> parisc will gets fixed and enhanced. This even fixes the nasty
>>>> "minifail" bug
>>>> (http://wiki.parisc-linux.org/TestCases?highlight=%28minifail%29)
>>>> which
>>>> prevented parisc to stay an official debian port.  Basically the
>>>> flush in
>>>> copy_user_page together with the TLB patch from commit
>>>> 7139bc1579901b53db7e898789e916ee2fb52d78 is what fixes the minifail
>>>> bug.
>>> Is this series expected to fix the thread related problems I see in the
>>> git testsuite?
>> I expect so, if not, please let us know!
> Ahem... actually:
> MAYBE!!!
>
> The problem is, that you probably will need an updated glibc (and maybe compiler) as well. Dave has done a lot of work to fix stuff. We have copied the most important update-packages to ftp.parisc-linux.org. To update, just make sure the following lines are in your /etc/apt/source.list file:
> deb ftp://ftp.de.debian.org/debian-ports unstable main
> deb ftp://ftp.parisc-linux.org/debian-ports/unstable unstable main
> deb-src ftp://ftp.de.debian.org/debian unstable main
>
> Do *not* just update to the packages of debian-ports.org. If you do that it will render your system unbootable, since the udev-package is broken and it will not find your discs at startup.
>
> It's on my todo-list to upload further packages, update the website on how to update your system, and of course to get a buildd working...
Just a note, these packages are for debian systems.  I believe that Eike is
running gentoo.  With respect to glibc, Carlos had a set of changes which I
submitted to Debian.  The full set was accepted around the -30 unstable 
release.
I think most of these are in gentoo but the matter needs review.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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John David Anglin wrote:
> On 2/4/2013 11:37 AM, Helge Deller wrote:
> >>> Von: Rolf Eike Beer <eike-kernel@sf-tec.de>
> >>> 
> >>> Helge Deller wrote:
> >>>> This is the first patch in a series of 4, with which the page cache
> >>>> flushing of
> >>>> parisc will gets fixed and enhanced. This even fixes the nasty
> >>>> "minifail" bug
> >>>> (http://wiki.parisc-linux.org/TestCases?highlight=%28minifail%29)
> >>>> which
> >>>> prevented parisc to stay an official debian port.  Basically the
> >>>> flush in
> >>>> copy_user_page together with the TLB patch from commit
> >>>> 7139bc1579901b53db7e898789e916ee2fb52d78 is what fixes the minifail
> >>>> bug.
> >>> 
> >>> Is this series expected to fix the thread related problems I see in the
> >>> git testsuite?
> >> 
> >> I expect so, if not, please let us know!
> > 
> > Ahem... actually:
> > MAYBE!!!
> > 
> > The problem is, that you probably will need an updated glibc (and maybe
> > compiler) as well. Dave has done a lot of work to fix stuff. We have
> > copied the most important update-packages to ftp.parisc-linux.org. To
> > update, just make sure the following lines are in your
> > /etc/apt/source.list file: deb ftp://ftp.de.debian.org/debian-ports
> > unstable main
> > deb ftp://ftp.parisc-linux.org/debian-ports/unstable unstable main
> > deb-src ftp://ftp.de.debian.org/debian unstable main
> > 
> > Do *not* just update to the packages of debian-ports.org. If you do that
> > it will render your system unbootable, since the udev-package is broken
> > and it will not find your discs at startup.
> > 
> > It's on my todo-list to upload further packages, update the website on how
> > to update your system, and of course to get a buildd working...
> Just a note, these packages are for debian systems.  I believe that Eike is
> running gentoo.  With respect to glibc, Carlos had a set of changes which I
> submitted to Debian.  The full set was accepted around the -30 unstable
> release.
> I think most of these are in gentoo but the matter needs review.

Oh Dave, I wanted to write a mail with "apt-get: no such command" or something 
;) I have tested your patchset you sent on 2012-12-31 and it fixed my git 
issues. So it simply boils down to: is everything from that patchset now in 
Helge's tree?

Eike
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From - Thu Nov 08 21:08:56 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH RESEND 1/1] arch Kconfig: remove references to
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To: James Hogan <james.hogan@imgtec.com>
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On Mon, 2013-02-04 at 10:09 +0000, James Hogan wrote:
> The IRQ_PER_CPU Kconfig symbol was removed in the following commit:
> 
> Commit 6a58fb3bad099076f36f0f30f44507bc3275cdb6 ("genirq: Remove
> CONFIG_IRQ_PER_CPU") merged in v2.6.39-rc1.
> 
> But IRQ_PER_CPU wasn't removed from any of the architecture Kconfig
> files where it was defined or selected. It's completely unused so remove
> the remaining references.
> 
> Signed-off-by: James Hogan <james.hogan@imgtec.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Mike Frysinger <vapier@gentoo.org>
> Cc: Fenghua Yu <fenghua.yu@intel.com>
> Cc: Ralf Baechle <ralf@linux-mips.org>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Paul Mundt <lethal@linux-sh.org>
> Acked-by: Tony Luck <tony.luck@intel.com>
> Acked-by: Richard Kuo <rkuo@codeaurora.org>

For what it's worth ACK, but I don't really think you need it since the
patch is trivial and obviously correct.

> 
> Does anybody want to pick this patch up?

I see Thomas already has.  Thanks, by the way, for not doing this as one
patch per architecture ...

James


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From - Thu Nov 08 21:08:56 2018
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Subject: Re: [PATCH] parisc: fixes and cleanups in page cache flushing (1/4)
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
	James.Bottomley@hansenpartnership.com
To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 2/4/2013 12:57 PM, Rolf Eike Beer wrote:
> John David Anglin wrote:
>> On 2/4/2013 11:37 AM, Helge Deller wrote:
>>>>> Von: Rolf Eike Beer <eike-kernel@sf-tec.de>
>>>>>
>>>>> Helge Deller wrote:
>>>>>> This is the first patch in a series of 4, with which the page cache
>>>>>> flushing of
>>>>>> parisc will gets fixed and enhanced. This even fixes the nasty
>>>>>> "minifail" bug
>>>>>> (http://wiki.parisc-linux.org/TestCases?highlight=%28minifail%29)
>>>>>> which
>>>>>> prevented parisc to stay an official debian port.  Basically the
>>>>>> flush in
>>>>>> copy_user_page together with the TLB patch from commit
>>>>>> 7139bc1579901b53db7e898789e916ee2fb52d78 is what fixes the minifail
>>>>>> bug.
>>>>> Is this series expected to fix the thread related problems I see in the
>>>>> git testsuite?
>>>> I expect so, if not, please let us know!
>>> Ahem... actually:
>>> MAYBE!!!
>>>
>>> The problem is, that you probably will need an updated glibc (and maybe
>>> compiler) as well. Dave has done a lot of work to fix stuff. We have
>>> copied the most important update-packages to ftp.parisc-linux.org. To
>>> update, just make sure the following lines are in your
>>> /etc/apt/source.list file: deb ftp://ftp.de.debian.org/debian-ports
>>> unstable main
>>> deb ftp://ftp.parisc-linux.org/debian-ports/unstable unstable main
>>> deb-src ftp://ftp.de.debian.org/debian unstable main
>>>
>>> Do *not* just update to the packages of debian-ports.org. If you do that
>>> it will render your system unbootable, since the udev-package is broken
>>> and it will not find your discs at startup.
>>>
>>> It's on my todo-list to upload further packages, update the website on how
>>> to update your system, and of course to get a buildd working...
>> Just a note, these packages are for debian systems.  I believe that Eike is
>> running gentoo.  With respect to glibc, Carlos had a set of changes which I
>> submitted to Debian.  The full set was accepted around the -30 unstable
>> release.
>> I think most of these are in gentoo but the matter needs review.
> Oh Dave, I wanted to write a mail with "apt-get: no such command" or something
> ;) I have tested your patchset you sent on 2012-12-31 and it fixed my git
> issues. So it simply boils down to: is everything from that patchset now in
> Helge's tree?
Mostly.  I believe there is still some stuff for entry.S and syscall.S 
that's not in the tree but I haven't
checked.  All the cache related changes are mow in Helge's tree plus 
some other changes.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:08:56 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.autofs
Subject: [PATCH] unbreak automounter support on 64-bit kernel with 32-bit
 userspace (v2)
Date: Mon, 4 Feb 2013 20:39:52 +0100
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To: "H. Peter Anvin" <hpa@zytor.com>, linux-parisc@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Rolf Eike Beer <eike-kernel@sf-tec.de>,
	Ian Kent <raven@themaw.net>, autofs@vger.kernel.org
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automount-support is broken on the parisc architecture, because the existing
#if list does not include a check for defined(__hppa__). The HPPA (parisc)
architecture is similiar to other 64bit Linux targets where we have to define
autofs_wqt_t (which is passed back and forth to user space) as int type which
has a size of 32bit across 32 and 64bit kernels.

During the discussion on the mailing list, H. Peter Anvin suggested to invert
the #if list since only specific platforms (specifically those who do not have
a 32bit userspace, like IA64 and Alpha) should have autofs_wqt_t as unsigned
long type.

This suggestion is probably the best way to go, since Arm64 (and maybe others?)
seems to have a non-working automounter. So in the long run even for other new
upcoming architectures this inverted check seem to be the best solution, since
it will not require them to change this #if again (unless they are 64bit only).

Signed-off-by: Helge Deller <deller@gmx.de>
CC: James Bottomley <James.Bottomley@HansenPartnership.com>
CC: Catalin Marinas <catalin.marinas@arm.com>
CC: Rolf Eike Beer <eike-kernel@sf-tec.de>
CC: H. Peter Anvin <hpa@zytor.com>
CC: Ian Kent <raven@themaw.net>


diff --git a/include/uapi/linux/auto_fs.h b/include/uapi/linux/auto_fs.h
index 77cdba9..bb991df 100644
--- a/include/uapi/linux/auto_fs.h
+++ b/include/uapi/linux/auto_fs.h
@@ -28,25 +28,16 @@
 #define AUTOFS_MIN_PROTO_VERSION	AUTOFS_PROTO_VERSION
 
 /*
- * Architectures where both 32- and 64-bit binaries can be executed
- * on 64-bit kernels need this.  This keeps the structure format
- * uniform, and makes sure the wait_queue_token isn't too big to be
- * passed back down to the kernel.
- *
- * This assumes that on these architectures:
- * mode     32 bit    64 bit
- * -------------------------
- * int      32 bit    32 bit
- * long     32 bit    64 bit
- *
- * If so, 32-bit user-space code should be backwards compatible.
+ * The wait_queue_token (autofs_wqt_t) is part of a structure which is passed
+ * back to the kernel via ioctl from userspace. On architectures where 32- and
+ * 64-bit userspace binaries can be executed it's important that the size of
+ * autofs_wqt_t stays constant between 32- and 64-bit Linux kernels so that we
+ * do not break the binary ABI interface by changing the structure size.
  */

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: kernel panic
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I found this kernel panic on one of my machines.
Seems to be signal-related...
Helge

[98879.332000] WARNING: at mm/mmap.c:2657
[98879.380000] Modules linked in:
[98879.416000]
[98879.432000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[98879.488000] PSW: 00001000000001000000000100001111 Not tainted
[98879.560000] r00-03  000000000804010f 0000000040a9a1f0 000000004013fcfc 0000000000000000
[98879.656000] r04-07  0000000040a3f1f0 00000000bd90b300 00000000000001be 00000000acf68770
[98879.752000] r08-11  0000000000100000 0000000000000001 0000000000020000 0000000000180000
[98879.848000] r12-15  000000000d800000 0000000040a9b1f0 0000000000800100 0000000000040004
[98879.944000] r16-19  0000000040a9b9f0 0000000040a571f0 0000000040a571f0 0000000040889500
[98880.040000] r20-23  000000000007002f 000000000800000e 000000000800000f 00000000401fdb70
[98880.136000] r24-27  ffffffffffffffe0 fffffffffffffe42 00000000409a9000 0000000040a3f1f0
[98880.232000] r28-31  0000000000000001 00000000acf68800 00000000acf687a0 0000000001f32000
[98880.328000] sr00-03  0000000003fec800 0000000000000000 0000000000000000 0000000003fc3800
[98880.424000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[98880.520000]
[98880.540000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040200118 000000004020011c
[98880.640000]  IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000
[98880.720000]  CPU:        0   CR30: 00000000acf68000 CR31: 00000000ffffffff
[98880.804000]  ORIG_R28: 0000000000000000
[98880.852000]  IAOQ[0]: exit_mmap+0x240/0x268
[98880.900000]  IAOQ[1]: exit_mmap+0x244/0x268
[98880.952000]  RP(r2): mmput+0x10c/0x258
[98880.996000] Backtrace:
[98881.024000]  [<000000004013fcfc>] mmput+0x10c/0x258
[98881.084000]  [<000000004014b9d0>] do_exit+0x680/0xef0
[98881.144000]  [<000000004014c550>] do_group_exit+0xc0/0x128
[98881.212000]  [<000000004015c9ec>] get_signal_to_deliver+0x794/0x7f8
[98881.284000]  [<0000000040124af0>] do_signal+0x68/0xc08
[98881.348000]  [<00000000401256bc>] do_notify_resume+0x2c/0xd0
[98881.416000]  [<00000000401050b8>] intr_check_sig+0x34/0x38
[98881.480000]
[98881.500000] ---[ end trace 0f7f718b0b117609 ]---
[98881.556000] BUG: Bad rss-counter state mm:00000000bd90b300 idx:0 val:20
[98881.636000] BUG: Bad rss-counter state mm:00000000bd90b300 idx:1 val:5
[98884.412000] BUG: Bad page state in process xxxmake  pfn:6cd9c
[98884.412000] page:00000000425e1a20 count:-1 mapcount:0 mapping:          (null) index:0x0
[98884.412000] page flags: 0x0()
[98884.412000] Modules linked in:
[98884.412000] Backtrace:
[98884.412000]  [<000000004011ba04>] dump_stack+0x24/0x30
[98884.412000]  [<00000000401ce9ac>] bad_page+0x1cc/0x250
[98884.412000]  [<00000000401cf0ec>] get_page_from_freelist+0x58c/0x7e8
[98884.412000]  [<00000000401d0460>] __alloc_pages_nodemask+0x198/0xaa8
[98884.412000]  [<000000004060c02c>] __netdev_alloc_frag+0xc4/0x270
[98884.412000]  [<000000004061289c>] __netdev_alloc_skb+0x74/0x178
[98884.412000]  [<00000000405cb01c>] tulip_interrupt+0x4c4/0x18b0
[98885.164000]
[98885.164000] Disabling lock debugging due to kernel taint
[101813.652000] Backtrace:
[101813.684000]  [<00000000404534f0>] __down_read_trylock+0x40/0xb0
[101813.756000]  [<00000000401765ec>] down_read_trylock+0x24/0x30
[101813.824000]  [<0000000040206a5c>] page_lock_anon_vma_read+0x6c/0x258
[101813.904000]  [<0000000040207054>] page_referenced+0x134/0x3f0
[101813.972000]  [<00000000401db818>] shrink_active_list+0x400/0x5d8
[101814.044000]  [<00000000401dd834>] shrink_lruvec+0x5e4/0x718
[101814.112000]  [<00000000401de934>] kswapd+0x894/0xcf0
[101814.172000]  [<000000004016f758>] kthread+0x168/0x190
[101814.236000]  [<0000000040104020>] end_fault_vector+0x20/0xc0
[101814.304000]  [<00000000401b1828>] handle_irq_event_percpu+0x300/0x360
[101814.384000]  [<00000000401b6ddc>] handle_percpu_irq+0xd4/0xe8
[101814.452000]  [<000000004014ee8c>] irq_exit+0x8c/0x98
[101814.512000]  [<000000004060df14>] skb_free_head+0x64/0x98
[101814.580000]  [<000000004060e0e8>] skb_release_data+0x1a0/0x1b8
[101814.648000]  [<000000004060e26c>] __kfree_skb+0x16c/0x180
[101814.716000]  [<0000000040678158>] tcp_data_queue+0x8e8/0xf80
[101814.784000]
[101814.804000]
[101814.820000] Kernel Fault: Code=26 regs=00000000bf4cc9b0 (Addr=000000000000000c)
[101814.908000]
[101814.928000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[101814.988000] PSW: 00001000000001001111100100001110 Tainted: G    B   W
[101815.068000] r00-03  000000ff0804f90e 0000000040a2a710 00000000404534f0 0000000000000008
[101815.164000] r04-07  0000000040a3f1f0 00000000bd6cf2d9 000000000000000c 0000000042200f20
[101815.260000] r08-11  00000000bf4cc618 0000000000000000 00000000bf4cc288 ffffffffffffffe0
[101815.360000] r12-15  0000000000000015 00000000408fac80 0000000040a9a9f0 0000000000000001
[101815.456000] r16-19  0000000040a9a1f0 0000000042200f40 0000000042200f20 0000000000000001
[101815.552000] r20-23  00000000bf4cc608 0000000000000000 0000000000000000 00000000bf4cc618
[101815.648000] r24-27  0000000000000000 0000000000000000 000000000000000c 0000000040a3f1f0
[101815.744000] r28-31  000000000800000f 00000000bf4cc980 00000000bf4cc9b0 00000000bd6cf2d8
[101815.844000] sr00-03  00000000072bd000 000000000009d800 0000000000000000 00000000072bd000
[101815.940000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[101816.040000]
[101816.056000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040117670 0000000040117674
[101816.160000]  IIR: 0f4015df    ISR: 0000000000000000  IOR: 000000000000000c
[101816.244000]  CPU:        1   CR30: 00000000bf4cc000 CR31: 00000000ffffffff
[101816.324000]  ORIG_R28: 0000000040a3f1f0
[101816.372000]  IAOQ[0]: _raw_spin_lock_irqsave+0x28/0x38
[101816.436000]  IAOQ[1]: _raw_spin_lock_irqsave+0x2c/0x38
[101816.496000]  RP(r2): __down_read_trylock+0x40/0xb0
[101816.556000] Backtrace: 
[101816.584000]  [<00000000404534f0>] __down_read_trylock+0x40/0xb0
[101816.656000]  [<00000000401765ec>] down_read_trylock+0x24/0x30
[101816.728000]  [<0000000040206a5c>] page_lock_anon_vma_read+0x6c/0x258
[101816.804000]  [<0000000040207054>] page_referenced+0x134/0x3f0
[101816.876000]  [<00000000401db818>] shrink_active_list+0x400/0x5d8
[101816.948000]  [<00000000401dd834>] shrink_lruvec+0x5e4/0x718
[101817.016000]  [<00000000401de934>] kswapd+0x894/0xcf0
[101817.076000]  [<000000004016f758>] kthread+0x168/0x190
[101817.136000]  [<0000000040104020>] end_fault_vector+0x20/0xc0
[101817.208000]  [<00000000401b1828>] handle_irq_event_percpu+0x300/0x360
[101817.284000]  [<00000000401b6ddc>] handle_percpu_irq+0xd4/0xe8
[101817.356000]  [<000000004014ee8c>] irq_exit+0x8c/0x98
[101817.416000]  [<000000004060df14>] skb_free_head+0x64/0x98
[101817.480000]  [<000000004060e0e8>] skb_release_data+0x1a0/0x1b8
[101817.552000]  [<000000004060e26c>] __kfree_skb+0x16c/0x180
[101817.616000]  [<0000000040678158>] tcp_data_queue+0x8e8/0xf80
[101817.684000]
[101817.708000] Kernel panic - not syncing: Kernel Fault


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On 2/4/2013 2:52 PM, Helge Deller wrote:
> I found this kernel panic on one of my machines.
> Seems to be signal-related...
There seem to be two issues.  For the second, can you see any reason
why the pointer to the lock would be corrupt (i.e., point to NULL).

Dave

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On 02/04/2013 11:39 AM, Helge Deller wrote:
> 
> This suggestion is probably the best way to go, since Arm64 (and maybe others?)
> seems to have a non-working automounter. So in the long run even for other new
> upcoming architectures this inverted check seem to be the best solution, since
> it will not require them to change this #if again (unless they are 64bit only).
> 

... and even then they will generally work just fine.

	-hpa

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Subject: Re: [PATCH] unbreak automounter support on 64-bit kernel with
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On Mon, 2013-02-04 at 20:39 +0100, Helge Deller wrote:
> automount-support is broken on the parisc architecture, because the existing
> #if list does not include a check for defined(__hppa__). The HPPA (parisc)
> architecture is similiar to other 64bit Linux targets where we have to define
> autofs_wqt_t (which is passed back and forth to user space) as int type which
> has a size of 32bit across 32 and 64bit kernels.
> 
> During the discussion on the mailing list, H. Peter Anvin suggested to invert
> the #if list since only specific platforms (specifically those who do not have
> a 32bit userspace, like IA64 and Alpha) should have autofs_wqt_t as unsigned
> long type.
> 
> This suggestion is probably the best way to go, since Arm64 (and maybe others?)
> seems to have a non-working automounter. So in the long run even for other new
> upcoming architectures this inverted check seem to be the best solution, since
> it will not require them to change this #if again (unless they are 64bit only).
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> CC: James Bottomley <James.Bottomley@HansenPartnership.com>
> CC: Catalin Marinas <catalin.marinas@arm.com>
> CC: Rolf Eike Beer <eike-kernel@sf-tec.de>
> CC: H. Peter Anvin <hpa@zytor.com>
> CC: Ian Kent <raven@themaw.net>
> 
> 
> diff --git a/include/uapi/linux/auto_fs.h b/include/uapi/linux/auto_fs.h
> index 77cdba9..bb991df 100644
> --- a/include/uapi/linux/auto_fs.h
> +++ b/include/uapi/linux/auto_fs.h
> @@ -28,25 +28,16 @@
>  #define AUTOFS_MIN_PROTO_VERSION	AUTOFS_PROTO_VERSION
>  
>  /*
> - * Architectures where both 32- and 64-bit binaries can be executed
> - * on 64-bit kernels need this.  This keeps the structure format
> - * uniform, and makes sure the wait_queue_token isn't too big to be
> - * passed back down to the kernel.
> - *
> - * This assumes that on these architectures:
> - * mode     32 bit    64 bit
> - * -------------------------
> - * int      32 bit    32 bit
> - * long     32 bit    64 bit
> - *
> - * If so, 32-bit user-space code should be backwards compatible.
> + * The wait_queue_token (autofs_wqt_t) is part of a structure which is passed
> + * back to the kernel via ioctl from userspace. On architectures where 32- and
> + * 64-bit userspace binaries can be executed it's important that the size of
> + * autofs_wqt_t stays constant between 32- and 64-bit Linux kernels so that we
> + * do not break the binary ABI interface by changing the structure size.
>   */
> -
> -#if defined(__sparc__) || defined(__mips__) || defined(__x86_64__) \
> - || defined(__powerpc__) || defined(__s390__)
> -typedef unsigned int autofs_wqt_t;
> -#else
> +#if defined(__ia64__) || defined(__alpha__) /* pure 64bit architectures */
>  typedef unsigned long autofs_wqt_t;
> +#else
> +typedef unsigned int autofs_wqt_t;
>  #endif
>  
>  /* Packet types */

Acked-by: Ian Kent <raven@themaw.net>


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From - Thu Nov 08 21:08:56 2018
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Subject: Re: [PATCH] unbreak automounter support on 64-bit kernel with 32-bit
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	James Bottomley <James.Bottomley@HansenPartnership.com>,
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On 02/05/2013 09:58 PM, Ian Kent wrote:
>>
>> diff --git a/include/uapi/linux/auto_fs.h b/include/uapi/linux/auto_fs.h
>> index 77cdba9..bb991df 100644
>> --- a/include/uapi/linux/auto_fs.h
>> +++ b/include/uapi/linux/auto_fs.h
>> @@ -28,25 +28,16 @@
>>   #define AUTOFS_MIN_PROTO_VERSION	AUTOFS_PROTO_VERSION
>>
>>   /*
>> - * Architectures where both 32- and 64-bit binaries can be executed
>> - * on 64-bit kernels need this.  This keeps the structure format
>> - * uniform, and makes sure the wait_queue_token isn't too big to be
>> - * passed back down to the kernel.
>> - *
>> - * This assumes that on these architectures:
>> - * mode     32 bit    64 bit
>> - * -------------------------
>> - * int      32 bit    32 bit
>> - * long     32 bit    64 bit
>> - *
>> - * If so, 32-bit user-space code should be backwards compatible.
>> + * The wait_queue_token (autofs_wqt_t) is part of a structure which is passed
>> + * back to the kernel via ioctl from userspace. On architectures where 32- and
>> + * 64-bit userspace binaries can be executed it's important that the size of
>> + * autofs_wqt_t stays constant between 32- and 64-bit Linux kernels so that we
>> + * do not break the binary ABI interface by changing the structure size.
>>    */
>> -
>> -#if defined(__sparc__) || defined(__mips__) || defined(__x86_64__) \
>> - || defined(__powerpc__) || defined(__s390__)
>> -typedef unsigned int autofs_wqt_t;
>> -#else
>> +#if defined(__ia64__) || defined(__alpha__) /* pure 64bit architectures */
>>   typedef unsigned long autofs_wqt_t;
>> +#else
>> +typedef unsigned int autofs_wqt_t;
>>   #endif
>>
>>   /* Packet types */
>
> Acked-by: Ian Kent <raven@themaw.net>
>

Acked-by: H. Peter Anvin <hpa@zytor.com>

	-hpa


-- 
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I work for Intel.  I don't speak on their behalf.

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From - Thu Nov 08 21:08:56 2018
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From: Catalin Marinas <catalin.marinas@arm.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.autofs
Subject: Re: [PATCH] unbreak automounter support on 64-bit kernel with
 32-bit userspace (v2)
Date: Wed, 6 Feb 2013 17:21:20 +0000
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References: <510AE21D.2090002@zytor.com>
 <20130204193952.GA5785@p100.box>
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Cc: "H. Peter Anvin" <hpa@zytor.com>,
	"linux-parisc@vger.kernel.org" <linux-parisc@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>,
	Rolf Eike Beer <eike-kernel@sf-tec.de>,
	Ian Kent <raven@themaw.net>,
	"autofs@vger.kernel.org" <autofs@vger.kernel.org>
To: Helge Deller <deller@gmx.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/4806>

On Mon, Feb 04, 2013 at 07:39:52PM +0000, Helge Deller wrote:
> automount-support is broken on the parisc architecture, because the existing
> #if list does not include a check for defined(__hppa__). The HPPA (parisc)
> architecture is similiar to other 64bit Linux targets where we have to define
> autofs_wqt_t (which is passed back and forth to user space) as int type which
> has a size of 32bit across 32 and 64bit kernels.
> 
> During the discussion on the mailing list, H. Peter Anvin suggested to invert
> the #if list since only specific platforms (specifically those who do not have
> a 32bit userspace, like IA64 and Alpha) should have autofs_wqt_t as unsigned
> long type.
> 
> This suggestion is probably the best way to go, since Arm64 (and maybe others?)
> seems to have a non-working automounter. So in the long run even for other new
> upcoming architectures this inverted check seem to be the best solution, since
> it will not require them to change this #if again (unless they are 64bit only).
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> CC: James Bottomley <James.Bottomley@HansenPartnership.com>
> CC: Catalin Marinas <catalin.marinas@arm.com>
> CC: Rolf Eike Beer <eike-kernel@sf-tec.de>
> CC: H. Peter Anvin <hpa@zytor.com>
> CC: Ian Kent <raven@themaw.net>

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: wire up process_vm_readv, process_vm_writev, kcmp
 and finit_module syscalls
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index e178f30..2c8b9bd 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -822,8 +822,12 @@
 #define __NR_syncfs		(__NR_Linux + 327)
 #define __NR_setns		(__NR_Linux + 328)
 #define __NR_sendmmsg		(__NR_Linux + 329)
+#define __NR_process_vm_readv	(__NR_Linux + 330)
+#define __NR_process_vm_writev	(__NR_Linux + 331)
+#define __NR_kcmp		(__NR_Linux + 332)
+#define __NR_finit_module	(__NR_Linux + 333)
 
-#define __NR_Linux_syscalls	(__NR_sendmmsg + 1)
+#define __NR_Linux_syscalls	(__NR_finit_module + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 54d950b..cf7094c 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -428,6 +428,10 @@
 	ENTRY_SAME(syncfs)
 	ENTRY_SAME(setns)
 	ENTRY_COMP(sendmmsg)
+	ENTRY_COMP(process_vm_readv)	/* 330 */
+	ENTRY_COMP(process_vm_writev)
+	ENTRY_SAME(kcmp)
+	ENTRY_SAME(finit_module)
 
 	/* Nothing yet */
 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix personality on 32bit kernel
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To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Process personality is stored together with other flags like UNAME26 in
an integer variable.  Overwriting this value with PER_LINUX drops all
other existing flags and as such broke tools like the uname26 tool.

Actually this was only broken on 32bit kernels, since for 32bit-ELF
binaries on 64-bit kernels the SET_PERSONALITY macro from
arch/parisc/kernel/binfmt_elf32.c is used which does not modifies the
personality value at all (which is wrong as long as we don't run HPUX
binaries or similiar).

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index 19f6cb1..ad2b503 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -247,7 +247,7 @@ typedef unsigned long elf_greg_t;
 #define ELF_PLATFORM  ("PARISC\0")
 
 #define SET_PERSONALITY(ex) \
-	current->personality = PER_LINUX; \
+	set_personality((current->personality & ~PER_MASK) | PER_LINUX); \
 	current->thread.map_base = DEFAULT_MAP_BASE; \
 	current->thread.task_size = DEFAULT_TASK_SIZE \
 
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: correctly wire up mq_* functions for CONFIG_COMPAT
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Fix mq_open, mq_timedsend, mq_timedreceive, mq_notify and mq_getsetattr
syscalls when running 32bit applications on 64bit kernel.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index cf7094c..e5fcd4c 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -327,12 +327,12 @@
 	ENTRY_SAME(epoll_wait)
  	ENTRY_SAME(remap_file_pages)
 	ENTRY_SAME(semtimedop)
-	ENTRY_SAME(mq_open)
+	ENTRY_COMP(mq_open)
 	ENTRY_SAME(mq_unlink)		/* 230 */
-	ENTRY_SAME(mq_timedsend)
-	ENTRY_SAME(mq_timedreceive)
-	ENTRY_SAME(mq_notify)
-	ENTRY_SAME(mq_getsetattr)
+	ENTRY_COMP(mq_timedsend)
+	ENTRY_COMP(mq_timedreceive)
+	ENTRY_COMP(mq_notify)
+	ENTRY_COMP(mq_getsetattr)
 	ENTRY_COMP(waitid)		/* 235 */
 	ENTRY_OURS(fadvise64_64)
 	ENTRY_SAME(set_tid_address)
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: convert msgrcv and msgsnd syscalls to use compat
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The currently used hand-crufted implementation is partly buggy and returned
different error return codes.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 3df1c35..81bc84f 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -272,6 +272,10 @@ config COMPAT
 	def_bool y
 	depends on 64BIT
 
+config SYSVIPC_COMPAT
+	def_bool y
+	depends on SYSVIPC
+
 config HPUX
 	bool "Support for HP-UX binaries"
 	depends on !64BIT
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index db7a662..94710cf 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -28,6 +28,7 @@ typedef u16	compat_nlink_t;
 typedef u16	compat_ipc_pid_t;
 typedef s32	compat_daddr_t;
 typedef u32	compat_caddr_t;
+typedef s32	compat_key_t;
 typedef s32	compat_timer_t;
 
 typedef s32	compat_int_t;
@@ -188,6 +189,66 @@ typedef struct compat_siginfo {
 #define COMPAT_OFF_T_MAX	0x7fffffff
 #define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL
 
+struct compat_ipc64_perm {
+	compat_key_t key;
+	__compat_uid_t uid;
+	__compat_gid_t gid;
+	__compat_uid_t cuid;
+	__compat_gid_t cgid;
+	unsigned short int __pad1;
+	compat_mode_t mode;
+	unsigned short int __pad2;
+	unsigned short int seq;
+	unsigned int __pad3;
+	unsigned long __unused1;	/* yes they really are 64bit pads */
+	unsigned long __unused2;
+};
+
+struct compat_semid64_ds {
+	struct compat_ipc64_perm sem_perm;
+	compat_time_t sem_otime;
+	unsigned int __unused1;
+	compat_time_t sem_ctime;
+	unsigned int __unused2;
+	compat_ulong_t sem_nsems;
+	compat_ulong_t __unused3;
+	compat_ulong_t __unused4;
+};
+
+struct compat_msqid64_ds {
+	struct compat_ipc64_perm msg_perm;
+	unsigned int __unused1;
+	compat_time_t msg_stime;
+	unsigned int __unused2;
+	compat_time_t msg_rtime;
+	unsigned int __unused3;
+	compat_time_t msg_ctime;
+	compat_ulong_t msg_cbytes;
+	compat_ulong_t msg_qnum;
+	compat_ulong_t msg_qbytes;
+	compat_pid_t msg_lspid;
+	compat_pid_t msg_lrpid;
+	compat_ulong_t __unused4;
+	compat_ulong_t __unused5;
+};
+
+struct compat_shmid64_ds {
+	struct compat_ipc64_perm shm_perm;
+	unsigned int __unused1;
+	compat_time_t shm_atime;
+	unsigned int __unused2;
+	compat_time_t shm_dtime;
+	unsigned int __unused3;
+	compat_time_t shm_ctime;
+	unsigned int __unused4;
+	compat_size_t shm_segsz;
+	compat_pid_t shm_cpid;
+	compat_pid_t shm_lpid;
+	compat_ulong_t shm_nattch;
+	compat_ulong_t __unused5;
+	compat_ulong_t __unused6;
+};
+
 /*
  * A pointer passed in from user mode. This should not
  * be used for syscall parameters, just declare them
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 9cfdaa1..cee60f7 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -21,7 +21,6 @@
 #include <linux/time.h>
 #include <linux/smp.h>
 #include <linux/sem.h>
-#include <linux/msg.h>
 #include <linux/shm.h>
 #include <linux/slab.h>
 #include <linux/uio.h>
@@ -73,63 +72,6 @@ asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
 	return ret;
 }
 
-struct msgbuf32 {
-    int mtype;
-    char mtext[1];
-};
-
-asmlinkage long sys32_msgsnd(int msqid,
-				struct msgbuf32 __user *umsgp32,
-				size_t msgsz, int msgflg)
-{
-	struct msgbuf *mb;
-	struct msgbuf32 mb32;
-	int err;
-
-	if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
-		return -ENOMEM;
-
-	err = get_user(mb32.mtype, &umsgp32->mtype);
-	mb->mtype = mb32.mtype;
-	err |= copy_from_user(mb->mtext, &umsgp32->mtext, msgsz);
-
-	if (err)
-		err = -EFAULT;
-	else
-		KERNEL_SYSCALL(err, sys_msgsnd, msqid, (struct msgbuf __user *)mb, msgsz, msgflg);
-
-	kfree(mb);
-	return err;
-}
-
-asmlinkage long sys32_msgrcv(int msqid,
-				struct msgbuf32 __user *umsgp32,
-				size_t msgsz, long msgtyp, int msgflg)
-{
-	struct msgbuf *mb;
-	struct msgbuf32 mb32;
-	int err, len;
-
-	if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
-		return -ENOMEM;
-
-	KERNEL_SYSCALL(err, sys_msgrcv, msqid, (struct msgbuf __user *)mb, msgsz, msgtyp, msgflg);
-
-	if (err >= 0) {
-		len = err;
-		mb32.mtype = mb->mtype;
-		err = put_user(mb32.mtype, &umsgp32->mtype);
-		err |= copy_to_user(&umsgp32->mtext, mb->mtext, len);
-		if (err)
-			err = -EFAULT;
-		else
-			err = len;
-	}
-
-	kfree(mb);
-	return err;
-}

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Subject: Re: [PATCH] parisc: convert msgrcv and msgsnd syscalls to use compat layer
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On Mon, Feb 11, 2013 at 2:34 PM, Helge Deller <deller@gmx.de> wrote:
> The currently used hand-crufted implementation is partly buggy and returned
                            ^

Maybe an apt typo? :)

> different error return codes.
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From - Thu Nov 08 21:08:57 2018
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Subject: [GIT PULL] parisc fixes for 3.8-rc7
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This is a couple of patches, one to fix a broken build with HPUX
compatibility and the other to solve a coherency problem we've been
seeing in our TLB where setting a page read only occasionally fails to
trigger a COW because of a stale writeable TLB entry.

The patches are here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git parisc-fixes

The short changelog is:

Geert Uytterhoeven (1):
      hpux: Remove obsolete regs parameter from do_execve() in hpux_execve()

John David Anglin (1):
      Purge existing TLB entries in set_pte_at and ptep_set_wrprotect

and the diffstat:

 arch/parisc/hpux/fs.c             |  3 +--
 arch/parisc/include/asm/pgtable.h | 13 ++++++++++---
 arch/parisc/kernel/cache.c        | 18 ++++++++++++++++++
 3 files changed, 29 insertions(+), 5 deletions(-)

Full diff is attached below.

James

---

diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
index a0760b8..838b479 100644
--- a/arch/parisc/hpux/fs.c
+++ b/arch/parisc/hpux/fs.c
@@ -43,8 +43,7 @@ int hpux_execve(struct pt_regs *regs)
 
 	error = do_execve(filename->name,
 			  (const char __user *const __user *) regs->gr[25],
-			  (const char __user *const __user *) regs->gr[24],
-			  regs);
+			  (const char __user *const __user *) regs->gr[24]);
 
 	putname(filename);
 
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index ee99f23..7df49fa 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -12,11 +12,10 @@
 
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
+#include <linux/mm_types.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
-struct vm_area_struct;
-
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -40,7 +39,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm, addr, ptep, pteval)                      \
+	do {                                                    \
+		set_pte(ptep, pteval);                          \
+		purge_tlb_entries(mm, addr);                    \
+	} while (0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -466,6 +472,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 48e16dc..b89a85a 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -419,6 +419,24 @@ void kunmap_parisc(void *addr)
 EXPORT_SYMBOL(kunmap_parisc);
 #endif
 
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	/* Disable preemption while we play with %sr1.  */
+	preempt_disable();
+	mtsp(mm->context, 1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+	preempt_enable();
+}
+EXPORT_SYMBOL(purge_tlb_entries);
+
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {


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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: convert msgrcv and msgsnd syscalls to use compat
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To: Matt Turner <mattst88@gmail.com>, linux-parisc@vger.kernel.org,
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* Matt Turner <mattst88@gmail.com>:
> On Mon, Feb 11, 2013 at 2:34 PM, Helge Deller <deller@gmx.de> wrote:
> > The currently used hand-crufted implementation is partly buggy and returned
>                             ^
> 
> Maybe an apt typo? :)

:-)

Anyway, I missed the dependency on CONFIG_COMPAT and as such the 32bit
build got broken. Here is the updated patch...

Helge


commit 4132dad5ac5df6ae669c70d2a3e5a834a8b8076f
Author: Helge Deller <deller@gmx.de>
Date:   Tue Feb 19 20:47:37 2013 +0100

parisc: convert msgrcv and msgsnd syscalls to use compat layer

Switch over to use the existing compat_* implementation for msgrcv() and
msgsnd().  Existing code was even partly buggy since it returned on some paths
different error codes than the standard.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 3df1c35..af48d26 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -272,6 +272,10 @@ config COMPAT
 	def_bool y
 	depends on 64BIT
 
+config SYSVIPC_COMPAT
+	def_bool y
+	depends on COMPAT && SYSVIPC
+
 config HPUX
 	bool "Support for HP-UX binaries"
 	depends on !64BIT
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index db7a662..94710cf 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -28,6 +28,7 @@ typedef u16	compat_nlink_t;
 typedef u16	compat_ipc_pid_t;
 typedef s32	compat_daddr_t;
 typedef u32	compat_caddr_t;
+typedef s32	compat_key_t;
 typedef s32	compat_timer_t;
 
 typedef s32	compat_int_t;
@@ -188,6 +189,66 @@ typedef struct compat_siginfo {
 #define COMPAT_OFF_T_MAX	0x7fffffff
 #define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL
 
+struct compat_ipc64_perm {
+	compat_key_t key;
+	__compat_uid_t uid;
+	__compat_gid_t gid;
+	__compat_uid_t cuid;
+	__compat_gid_t cgid;
+	unsigned short int __pad1;
+	compat_mode_t mode;
+	unsigned short int __pad2;
+	unsigned short int seq;
+	unsigned int __pad3;
+	unsigned long __unused1;	/* yes they really are 64bit pads */
+	unsigned long __unused2;
+};
+
+struct compat_semid64_ds {
+	struct compat_ipc64_perm sem_perm;
+	compat_time_t sem_otime;
+	unsigned int __unused1;
+	compat_time_t sem_ctime;
+	unsigned int __unused2;
+	compat_ulong_t sem_nsems;
+	compat_ulong_t __unused3;
+	compat_ulong_t __unused4;
+};
+
+struct compat_msqid64_ds {
+	struct compat_ipc64_perm msg_perm;
+	unsigned int __unused1;
+	compat_time_t msg_stime;
+	unsigned int __unused2;
+	compat_time_t msg_rtime;
+	unsigned int __unused3;
+	compat_time_t msg_ctime;
+	compat_ulong_t msg_cbytes;
+	compat_ulong_t msg_qnum;
+	compat_ulong_t msg_qbytes;
+	compat_pid_t msg_lspid;
+	compat_pid_t msg_lrpid;
+	compat_ulong_t __unused4;
+	compat_ulong_t __unused5;
+};
+
+struct compat_shmid64_ds {
+	struct compat_ipc64_perm shm_perm;
+	unsigned int __unused1;
+	compat_time_t shm_atime;
+	unsigned int __unused2;
+	compat_time_t shm_dtime;
+	unsigned int __unused3;
+	compat_time_t shm_ctime;
+	unsigned int __unused4;
+	compat_size_t shm_segsz;
+	compat_pid_t shm_cpid;
+	compat_pid_t shm_lpid;
+	compat_ulong_t shm_nattch;
+	compat_ulong_t __unused5;
+	compat_ulong_t __unused6;
+};
+
 /*
  * A pointer passed in from user mode. This should not
  * be used for syscall parameters, just declare them
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 9cfdaa1..cee60f7 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -21,7 +21,6 @@
 #include <linux/time.h>
 #include <linux/smp.h>
 #include <linux/sem.h>
-#include <linux/msg.h>
 #include <linux/shm.h>
 #include <linux/slab.h>
 #include <linux/uio.h>
@@ -73,63 +72,6 @@ asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
 	return ret;
 }
 
-struct msgbuf32 {
-    int mtype;
-    char mtext[1];
-};
-
-asmlinkage long sys32_msgsnd(int msqid,
-				struct msgbuf32 __user *umsgp32,
-				size_t msgsz, int msgflg)
-{
-	struct msgbuf *mb;
-	struct msgbuf32 mb32;
-	int err;
-
-	if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
-		return -ENOMEM;
-
-	err = get_user(mb32.mtype, &umsgp32->mtype);
-	mb->mtype = mb32.mtype;
-	err |= copy_from_user(mb->mtext, &umsgp32->mtext, msgsz);
-
-	if (err)
-		err = -EFAULT;
-	else
-		KERNEL_SYSCALL(err, sys_msgsnd, msqid, (struct msgbuf __user *)mb, msgsz, msgflg);
-
-	kfree(mb);
-	return err;
-}
-
-asmlinkage long sys32_msgrcv(int msqid,
-				struct msgbuf32 __user *umsgp32,
-				size_t msgsz, long msgtyp, int msgflg)
-{
-	struct msgbuf *mb;
-	struct msgbuf32 mb32;
-	int err, len;
-
-	if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
-		return -ENOMEM;
-
-	KERNEL_SYSCALL(err, sys_msgrcv, msqid, (struct msgbuf __user *)mb, msgsz, msgtyp, msgflg);
-
-	if (err >= 0) {
-		len = err;
-		mb32.mtype = mb->mtype;
-		err = put_user(mb32.mtype, &umsgp32->mtype);
-		err |= copy_to_user(&umsgp32->mtext, mb->mtext, len);
-		if (err)
-			err = -EFAULT;
-		else
-			err = len;
-	}
-
-	kfree(mb);
-	return err;
-}

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commit 38526701a6dd86e1f6bd6f025878f990ecae3c8c
Author: Helge Deller <deller@gmx.de>
Date:   Tue Feb 19 21:11:39 2013 +0100

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index 5dede04..2ddcabb 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -65,7 +65,7 @@ put_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
 {
 	compat_sigset_t s;
 
-	if (sz != sizeof *set)
+	if (sz != sizeof(compat_sigset_t))
 		return -EINVAL;
 	sigset_64to32(&s, set);
 
@@ -78,7 +78,7 @@ get_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
 	compat_sigset_t s;
 	int r;
 
-	if (sz != sizeof *set)
+	if (sz != sizeof(compat_sigset_t))
 		return -EINVAL;
 
 	if ((r = copy_from_user(&s, up, sz)) == 0) {
@@ -94,8 +94,11 @@ int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set, compat_sigset_t _
 	sigset_t old_set, new_set;
 	int ret;
 
-	if (set && get_sigset32(set, &new_set, sigsetsize))
-		return -EFAULT;
+	if (set) {
+		ret = get_sigset32(set, &new_set, sigsetsize);
+		if (ret)
+			return ret;
+	}
 	
 	KERNEL_SYSCALL(ret, sys_rt_sigprocmask, how, set ? (sigset_t __user *)&new_set : NULL,
 				 oset ? (sigset_t __user *)&old_set : NULL, sigsetsize);
@@ -128,6 +131,10 @@ sys32_rt_sigaction(int sig, const struct sigaction32 __user *act, struct sigacti
 	struct k_sigaction new_sa, old_sa;
 	int ret = -EINVAL;
 
+	/* XXX: Don't preclude handling different sized sigset_t's.  */
+	if (sigsetsize != sizeof(compat_sigset_t))
+		return -EINVAL;
+
 	if (act) {
 		if (copy_from_user(&new_sa32.sa, act, sizeof new_sa32.sa))
 			return -EFAULT;
--
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commit c065e93d5a0fe16e6cfb81d61ab6f5aaee9c25a6
Author: Helge Deller <deller@gmx.de>
Date:   Tue Feb 19 21:23:59 2013 +0100

fallocate(off_t) gets redirected by glibc to fallocate64(loff_t) where
the 64bit loff_t values get splitted into two 32bit (hi/lo) values. This
patch fixes this syscall for the 32- and 64bit kernel.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index a047b32..54d619d 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -213,6 +213,13 @@ asmlinkage long parisc_sync_file_range(int fd,
 			(loff_t)hi_nbytes << 32 | lo_nbytes, flags);
 }
 
+asmlinkage long parisc_fallocate(int fd, int mode, u32 offhi, u32 offlo,
+				u32 lenhi, u32 lenlo)
+{
+        return sys_fallocate(fd, mode, ((u64)offhi << 32) | offlo,
+                             ((u64)lenhi << 32) | lenlo);
+}
+
 asmlinkage unsigned long sys_alloc_hugepages(int key, unsigned long addr, unsigned long len, int prot, int flag)
 {
 	return -ENOMEM;
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index cee60f7..9862944 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -142,13 +142,6 @@ long sys32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf,
 				  buf, len);
 }
 
-asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
-				u32 lenhi, u32 lenlo)
-{
-        return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
-                             ((loff_t)lenhi << 32) | lenlo);
-}

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commit 569d66d55af40773eb50062f331ef3fffc754849
Author: Helge Deller <deller@gmx.de>
Date:   Tue Feb 19 21:42:45 2013 +0100

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 3043194..f2e390f 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -149,6 +149,7 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)	\
 #define __ARCH_WANT_SYS_SIGNAL
 #define __ARCH_WANT_SYS_TIME
 #define __ARCH_WANT_COMPAT_SYS_TIME
+#define __ARCH_WANT_COMPAT_SYS_SCHED_RR_GET_INTERVAL
 #define __ARCH_WANT_SYS_UTIME
 #define __ARCH_WANT_SYS_WAITPID
 #define __ARCH_WANT_SYS_SOCKETCALL
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 9862944..0115eac 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -60,18 +60,6 @@ asmlinkage long sys32_unimplemented(int r26, int r25, int r24, int r23,
     return -ENOSYS;
 }
 
-asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
-	struct compat_timespec __user *interval)
-{
-	struct timespec t;
-	int ret;
-
-	KERNEL_SYSCALL(ret, sys_sched_rr_get_interval, pid, (struct timespec __user *)&t);
-	if (put_compat_timespec(&t, interval))
-		return -EFAULT;
-	return ret;
-}

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commit 375e130d5c9809c99afe56d6640b70f3c002e8ac
Date:   Tue Feb 19 22:55:17 2013 +0100

Utilize the existing compat_sys_sendfile function for 64bit kernel and add
wrappers for sendfile and sendfile64 to correctly handle the 32/64 bit sign
extension.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index f2e390f..74f801e 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -167,6 +167,7 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)	\
 #define __ARCH_WANT_SYS_FORK
 #define __ARCH_WANT_SYS_VFORK
 #define __ARCH_WANT_SYS_CLONE
+#define __ARCH_WANT_COMPAT_SYS_SENDFILE
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 0115eac..eca69bb 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -60,42 +60,23 @@ asmlinkage long sys32_unimplemented(int r26, int r25, int r24, int r23,
     return -ENOSYS;
 }
 
-asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, s32 count)
+/* Note: it is necessary to treat out_fd and in_fd as unsigned ints, with the
+ * corresponding cast to a signed int to insure that the proper conversion
+ * (sign extension) between the register representation of a signed int (msr in
+ * 32-bit mode) and the register representation of a signed int (msr in 64-bit
+ * mode) is performed.
+ */
+asmlinkage long sys32_sendfile(u32 out_fd, u32 in_fd,
+			       compat_off_t __user *offset, compat_size_t count)
 {
-        mm_segment_t old_fs = get_fs();
-        int ret;
-        off_t of;
-
-        if (offset && get_user(of, offset))
-                return -EFAULT;
-
-        set_fs(KERNEL_DS);
-        ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, count);
-        set_fs(old_fs);
-
-        if (offset && put_user(of, offset))
-                return -EFAULT;
-
-        return ret;
+	return compat_sys_sendfile((int)out_fd, (int)in_fd, offset, count);
 }
 
-asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count)
+asmlinkage long sys32_sendfile64(u32 out_fd, u32 in_fd,
+				 compat_loff_t __user *offset, compat_size_t count)
 {
-	mm_segment_t old_fs = get_fs();
-	int ret;
-	loff_t lof;
-	
-	if (offset && get_user(lof, offset))
-		return -EFAULT;
-		
-	set_fs(KERNEL_DS);
-	ret = sys_sendfile64(out_fd, in_fd, offset ? (loff_t __user *)&lof : NULL, count);
-	set_fs(old_fs);
-	
-	if (offset && put_user(lof, offset))
-		return -EFAULT;
-		
-	return ret;
+	return sys_sendfile64((int)out_fd, (int)in_fd,
+				(loff_t __user *)offset, count);
 }
 
 
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 9180719..129fd47 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -304,7 +304,7 @@
 	ENTRY_SAME(gettid)
 	ENTRY_OURS(readahead)
 	ENTRY_SAME(tkill)
-	ENTRY_SAME(sendfile64)
+	ENTRY_DIFF(sendfile64)
 	ENTRY_COMP(futex)		/* 210 */
 	ENTRY_COMP(sched_setaffinity)
 	ENTRY_COMP(sched_getaffinity)
--
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From: Michel Lespinasse <walken@google.com>
Subject: mm: use vm_unmapped_area() on parisc architecture

Update the parisc arch_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.

Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/parisc/kernel/sys_parisc.c |   46 +++++++++++-------------------
 1 file changed, 17 insertions(+), 29 deletions(-)

diff -puN arch/parisc/kernel/sys_parisc.c~mm-use-vm_unmapped_area-on-parisc-architecture arch/parisc/kernel/sys_parisc.c
--- a/arch/parisc/kernel/sys_parisc.c~mm-use-vm_unmapped_area-on-parisc-architecture
+++ a/arch/parisc/kernel/sys_parisc.c
@@ -35,18 +35,15 @@
 
 static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
 {
-	struct vm_area_struct *vma;
+	struct vm_unmapped_area_info info;
 
-	addr = PAGE_ALIGN(addr);
-
-	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
-		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (TASK_SIZE - len < addr)
-			return -ENOMEM;
-		if (!vma || addr + len <= vma->vm_start)
-			return addr;
-		addr = vma->vm_end;
-	}
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = PAGE_ALIGN(addr);
+	info.high_limit = TASK_SIZE;
+	info.align_mask = 0;
+	info.align_offset = 0;
+	return vm_unmapped_area(&info);
 }
 
 #define DCACHE_ALIGN(addr) (((addr) + (SHMLBA - 1)) &~ (SHMLBA - 1))
@@ -63,30 +60,21 @@ static unsigned long get_unshared_area(u
  */
 static int get_offset(struct address_space *mapping)
 {
-	int offset = (unsigned long) mapping << (PAGE_SHIFT - 8);
-	return offset & 0x3FF000;
+	return (unsigned long) mapping >> 8;
 }
 
 static unsigned long get_shared_area(struct address_space *mapping,
 		unsigned long addr, unsigned long len, unsigned long pgoff)
 {
-	struct vm_area_struct *vma;
-	int offset = mapping ? get_offset(mapping) : 0;
-
-	offset = (offset + (pgoff << PAGE_SHIFT)) & 0x3FF000;
+	struct vm_unmapped_area_info info;
 
-	addr = DCACHE_ALIGN(addr - offset) + offset;

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Subject: [GIT PULL] parisc updates for 3.9
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi Linus,

The following changes since commit 19f949f52599ba7c3f67a5897ac6be14bfcb1200:

  Linux 3.8 (2013-02-18 15:58:34 -0800)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.9

for you to fetch changes up to 1dda59b4f3d03fa28d86f3ea235655f0f96aab3e:

  arch/parisc/include/asm: use ARRAY_SIZE macro in mmzone.h (2013-02-20 22:57:49 +0100)

----------------------------------------------------------------
Al Viro (1):
      parisc: fix ptrace breakage

Geert Uytterhoeven (1):
      [PARISC] hpux: Remove obsolete regs parameter from do_execve() in hpux_execve()

Helge Deller (13):
      Merge tag 'parisc-fixes' of git://git.kernel.org/.../jejb/parisc-2.6 into stable-3.8
      parisc: enhance automatic CONFIG_CROSS_COMPILE detection
      parisc: add CONFIG_MLONGCALLS option to enable linkage of huge vmlinux executables
      parisc: led driver requires CONFIG_VM_EVENT_COUNTERS
      parisc: wire up process_vm_readv, process_vm_writev, kcmp and finit_module syscalls
      parisc: fix personality on 32bit kernel
      parisc: correctly wire up mq_* functions for CONFIG_COMPAT case
      parisc: convert msgrcv and msgsnd syscalls to use compat layer
      parisc: fix error return codes for rt_sigaction and rt_sigprocmask
      parisc: fix fallocate syscall
      parisc: switch to available compat_sched_rr_get_interval implementation
      parisc: sendfile and sendfile64 syscall cleanups
      parisc: remove empty lines and unnecessary #ifdef coding in include/asm/signal.h

Joe Perches (1):
      drivers/parisc: Use printf extension %pR for struct resource

John David Anglin (10):
      [PARISC] Purge existing TLB entries in set_pte_at and ptep_set_wrprotect
      parisc: Fix comment describing setup of access rights in entry.S
      parisc: fixes and cleanups in page cache flushing (1/4)
      parisc: fixes and cleanups in page cache flushing (2/4)
      parisc: fixes and cleanups in page cache flushing (3/4)
      parisc: fixes and cleanups in page cache flushing (4/4)
      parisc: disable preemption while flushing D- or I-caches through TMPALIAS region
      parisc: ensure that mmapped shared pages are aligned at SHMLBA addresses
      parisc: always detect multiple physical ranges
      parisc: space register variables need to be in native length (unsigned long)

Julia Lawall (1):
      drivers/parisc/pdc_stable.c: use WARN

Kautuk Consul (1):
      parisc/mm/fault.c: Port OOM changes to do_page_fault

Nikitas Angelinas (1):
      arch/parisc/include/asm: use ARRAY_SIZE macro in mmzone.h

Paul Bolle (1):
      parisc: remove unused compat_rt_sigframe.h header

Peter Zijlstra (1):
      parisc: remove IRQF_DISABLED

Wei Yongjun (1):
      parisc: fix possible memory leak in pat_query_module()

 arch/parisc/Kconfig                          |  21 ++
 arch/parisc/Makefile                         |  13 +-
 arch/parisc/hpux/fs.c                        |   3 +-
 arch/parisc/include/asm/cacheflush.h         |   2 +
 arch/parisc/include/asm/compat.h             |  61 +++++
 arch/parisc/include/asm/compat_rt_sigframe.h |  50 ----
 arch/parisc/include/asm/elf.h                |   2 +-
 arch/parisc/include/asm/floppy.h             |   4 +-
 arch/parisc/include/asm/mmzone.h             |   7 +-
 arch/parisc/include/asm/page.h               |  20 +-
 arch/parisc/include/asm/pgtable.h            |  13 +-
 arch/parisc/include/asm/signal.h             |   4 -
 arch/parisc/include/asm/unistd.h             |   2 +
 arch/parisc/include/uapi/asm/unistd.h        |   6 +-
 arch/parisc/kernel/cache.c                   | 221 +++++++++++++++---
 arch/parisc/kernel/entry.S                   |   4 +-
 arch/parisc/kernel/inventory.c               |   2 +
 arch/parisc/kernel/irq.c                     |   4 +-
 arch/parisc/kernel/pacache.S                 | 335 +++++++++++++++++++++++----
 arch/parisc/kernel/parisc_ksyms.c            |   5 +-
 arch/parisc/kernel/signal.c                  |   2 +-
 arch/parisc/kernel/signal32.c                |  15 +-
 arch/parisc/kernel/sys_parisc.c              |  16 +-
 arch/parisc/kernel/sys_parisc32.c            | 122 ++--------
 arch/parisc/kernel/syscall.S                 |   5 +-
 arch/parisc/kernel/syscall_table.S           |  27 +--
 arch/parisc/mm/fault.c                       |  30 ++-
 drivers/parisc/Kconfig                       |   1 +
 drivers/parisc/dino.c                        |  13 +-
 drivers/parisc/hppb.c                        |   6 +-
 drivers/parisc/pdc_stable.c                  |   6 +-
 drivers/parisc/superio.c                     |   2 +-
 32 files changed, 708 insertions(+), 316 deletions(-)
 delete mode 100644 arch/parisc/include/asm/compat_rt_sigframe.h
--
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Cc: Linux Kernel Development <linux-kernel@vger.kernel.org>,
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	James Bottomley <James.Bottomley@hansenpartnership.com>
To: Helge Deller <deller@gmx.de>
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On Fri, Feb 22, 2013 at 1:16 PM, Helge Deller <deller@gmx.de> wrote:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.9

In general, I'd love to also get a short human-readable explanation of
what the pull does for the merge message. As it is, I just made
something up.

               Linus
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [patch 1/1] mm: use vm_unmapped_area() on parisc architecture
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On 02/22/2013 12:12 AM, akpm@linux-foundation.org wrote:
> From: Michel Lespinasse <walken@google.com>
> Subject: mm: use vm_unmapped_area() on parisc architecture
> 
> Update the parisc arch_get_unmapped_area function to make use of
> vm_unmapped_area() instead of implementing a brute force search.
> 
> Signed-off-by: Michel Lespinasse <walken@google.com>
> Acked-by: Rik van Riel <riel@redhat.com>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

James had two comments regarding this patch:
https://patchwork.kernel.org/patch/2027451/

Anyway, given the fact that this patch is a nice cleanup, that it does not do more
wrong than what was maybe wrong before, and that I tested a 32- and 64bit kernel 
with that patch, I would say:

Acked-by: Helge Deller <deller@gmx.de>


> ---
> 
>  arch/parisc/kernel/sys_parisc.c |   46 +++++++++++-------------------
>  1 file changed, 17 insertions(+), 29 deletions(-)
> 
> diff -puN arch/parisc/kernel/sys_parisc.c~mm-use-vm_unmapped_area-on-parisc-architecture arch/parisc/kernel/sys_parisc.c
> --- a/arch/parisc/kernel/sys_parisc.c~mm-use-vm_unmapped_area-on-parisc-architecture
> +++ a/arch/parisc/kernel/sys_parisc.c
> @@ -35,18 +35,15 @@
>  
>  static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
>  {
> -	struct vm_area_struct *vma;
> +	struct vm_unmapped_area_info info;
>  
> -	addr = PAGE_ALIGN(addr);
> -
> -	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
> -		/* At this point:  (!vma || addr < vma->vm_end). */
> -		if (TASK_SIZE - len < addr)
> -			return -ENOMEM;
> -		if (!vma || addr + len <= vma->vm_start)
> -			return addr;
> -		addr = vma->vm_end;
> -	}
> +	info.flags = 0;
> +	info.length = len;
> +	info.low_limit = PAGE_ALIGN(addr);
> +	info.high_limit = TASK_SIZE;
> +	info.align_mask = 0;
> +	info.align_offset = 0;
> +	return vm_unmapped_area(&info);
>  }
>  
>  #define DCACHE_ALIGN(addr) (((addr) + (SHMLBA - 1)) &~ (SHMLBA - 1))
> @@ -63,30 +60,21 @@ static unsigned long get_unshared_area(u
>   */
>  static int get_offset(struct address_space *mapping)
>  {
> -	int offset = (unsigned long) mapping << (PAGE_SHIFT - 8);
> -	return offset & 0x3FF000;
> +	return (unsigned long) mapping >> 8;
>  }
>  
>  static unsigned long get_shared_area(struct address_space *mapping,
>  		unsigned long addr, unsigned long len, unsigned long pgoff)
>  {
> -	struct vm_area_struct *vma;
> -	int offset = mapping ? get_offset(mapping) : 0;
> -
> -	offset = (offset + (pgoff << PAGE_SHIFT)) & 0x3FF000;
> +	struct vm_unmapped_area_info info;
>  
> -	addr = DCACHE_ALIGN(addr - offset) + offset;
> -
> -	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
> -		/* At this point:  (!vma || addr < vma->vm_end). */
> -		if (TASK_SIZE - len < addr)
> -			return -ENOMEM;
> -		if (!vma || addr + len <= vma->vm_start)
> -			return addr;
> -		addr = DCACHE_ALIGN(vma->vm_end - offset) + offset;
> -		if (addr < vma->vm_end) /* handle wraparound */
> -			return -ENOMEM;
> -	}
> +	info.flags = 0;
> +	info.length = len;
> +	info.low_limit = PAGE_ALIGN(addr);
> +	info.high_limit = TASK_SIZE;
> +	info.align_mask = PAGE_MASK & (SHMLBA - 1);
> +	info.align_offset = (get_offset(mapping) + pgoff) << PAGE_SHIFT;
> +	return vm_unmapped_area(&info);
>  }
>  
>  unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
> _
> 

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From - Thu Nov 08 21:08:58 2018
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From: Stephen Boyd <sboyd@codeaurora.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
Date: Tue, 26 Feb 2013 19:00:16 -0800
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Cc: linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>,
	linux-parisc@vger.kernel.org, linux-s390@vger.kernel.org,
	Arjan van de Ven <arjan@linux.intel.com>,
	Helge Deller <deller@gmx.de>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Chris Metcalf <cmetcalf@tilera.com>
To: Andrew Morton <akpm@linux-foundation.org>
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The help text for this config is duplicated across the x86,
parisc, and s390 Kconfig.debug files. Arnd Bergman noted that the
help text was slightly misleading and should be fixed to state
that enabling this option isn't a problem when using pre 4.4 gcc.

To simplify the rewording, consolidate the text into
lib/Kconfig.debug and modify it there to be more explicit about
when you should say N to this config.

Also, make the text a bit more generic by stating that this
option enables compile time checks so we can cover architectures
which emit warnings vs. ones which emit errors. The details of
how an architecture decided to implement the checks isn't as
important as the concept of compile time checking of
copy_from_user() calls.

While we're doing this, remove all the copy_from_user_overflow()
code that's duplicated many times and place it into lib/ so that
any architecture supporting this option can get the function for
free.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: linux-parisc@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---

Per Helge Deller prodding me, I'm resending just this patch.

https://patchwork.kernel.org/patch/833182/

 arch/parisc/Kconfig             |  1 +
 arch/parisc/Kconfig.debug       | 14 --------------
 arch/s390/Kconfig               |  1 +
 arch/s390/Kconfig.debug         | 14 --------------
 arch/s390/lib/Makefile          |  1 -
 arch/s390/lib/usercopy.c        |  8 --------
 arch/sparc/lib/Makefile         |  1 -
 arch/sparc/lib/usercopy.c       |  9 ---------
 arch/tile/Kconfig               |  8 +-------
 arch/tile/include/asm/uaccess.h |  7 ++++++-
 arch/tile/lib/uaccess.c         |  8 --------
 arch/x86/Kconfig                |  1 +
 arch/x86/Kconfig.debug          | 14 --------------
 arch/x86/lib/usercopy_32.c      |  6 ------
 lib/Kconfig.debug               | 18 ++++++++++++++++++
 lib/Makefile                    |  1 +
 lib/usercopy.c                  |  9 +++++++++
 17 files changed, 38 insertions(+), 83 deletions(-)
 delete mode 100644 arch/s390/lib/usercopy.c
 delete mode 100644 arch/sparc/lib/usercopy.c
 create mode 100644 lib/usercopy.c

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index a2a47d9..96be92f 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -1,5 +1,6 @@
 config PARISC
 	def_bool y
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 	select HAVE_IDE
 	select HAVE_OPROFILE
 	select HAVE_FUNCTION_TRACER if 64BIT
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 7305ac8..bc989e5 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -12,18 +12,4 @@ config DEBUG_RODATA
          portion of the kernel code won't be covered by a TLB anymore.
          If in doubt, say "N".
 
-config DEBUG_STRICT_USER_COPY_CHECKS
-	bool "Strict copy size checks"
-	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
-	---help---
-	  Enabling this option turns a certain set of sanity checks for user
-	  copy operations into compile time failures.
-
-	  The copy_from_user() etc checks are there to help test if there
-	  are sufficient security checks on the length argument of
-	  the copy operation, by having gcc prove that the argument is
-	  within bounds.
-
-	  If unsure, or if you run an older (pre 4.4) gcc, say N.
-
 endmenu
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 4b50537..516621f 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -91,6 +91,7 @@ config S390
 	select ARCH_INLINE_WRITE_UNLOCK_BH
 	select ARCH_INLINE_WRITE_UNLOCK_IRQ
 	select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 	select ARCH_SAVE_PAGE_KEYS if HIBERNATION
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select BUILDTIME_EXTABLE_SORT
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index fc32a2d..c56878e 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -17,20 +17,6 @@ config STRICT_DEVMEM
 
 	  If you are unsure, say Y.
 
-config DEBUG_STRICT_USER_COPY_CHECKS
-	def_bool n
-	prompt "Strict user copy size checks"
-	---help---
-	  Enabling this option turns a certain set of sanity checks for user
-	  copy operations into compile time warnings.
-
-	  The copy_from_user() etc checks are there to help test if there
-	  are sufficient security checks on the length argument of
-	  the copy operation, by having gcc prove that the argument is
-	  within bounds.
-
-	  If unsure, or if you run an older (pre 4.4) gcc, say N.
-
 config S390_PTDUMP
 	bool "Export kernel pagetable layout to userspace via debugfs"
 	depends on DEBUG_KERNEL
diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
index 6ab0d0b..20b0e97 100644
--- a/arch/s390/lib/Makefile
+++ b/arch/s390/lib/Makefile
@@ -3,7 +3,6 @@
 #
 
 lib-y += delay.o string.o uaccess_std.o uaccess_pt.o
-obj-y += usercopy.o
 obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o mem32.o
 obj-$(CONFIG_64BIT) += mem64.o
 lib-$(CONFIG_64BIT) += uaccess_mvcos.o
diff --git a/arch/s390/lib/usercopy.c b/arch/s390/lib/usercopy.c
deleted file mode 100644
index 14b363f..0000000
--- a/arch/s390/lib/usercopy.c
+++ /dev/null
@@ -1,8 +0,0 @@
-#include <linux/module.h>
-#include <linux/bug.h>
-
-void copy_from_user_overflow(void)
-{
-	WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index 8410065f2..dbe119b 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -45,4 +45,3 @@ obj-y                 += iomap.o
 obj-$(CONFIG_SPARC32) += atomic32.o ucmpdi2.o
 obj-y                 += ksyms.o
 obj-$(CONFIG_SPARC64) += PeeCeeI.o
-obj-y                 += usercopy.o
diff --git a/arch/sparc/lib/usercopy.c b/arch/sparc/lib/usercopy.c
deleted file mode 100644
index 5c4284c..0000000
--- a/arch/sparc/lib/usercopy.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/bug.h>
-
-void copy_from_user_overflow(void)
-{
-	WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 1404497..9d65a48 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -19,6 +19,7 @@ config TILE
 	select HAVE_SYSCALL_WRAPPERS if TILEGX
 	select HAVE_VIRT_TO_BUS
 	select SYS_HYPERVISOR
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_CLOCKEVENTS
 	select MODULES_USE_ELF_RELA
@@ -117,13 +118,6 @@ config STRICT_DEVMEM
 config SMP
 	def_bool y
 
-# Allow checking for compile-time determined overflow errors in
-# copy_from_user().  There are still unprovable places in the
-# generic code as of 2.6.34, so this option is not really compatible
-# with -Werror, which is more useful in general.
-config DEBUG_COPY_FROM_USER
-	def_bool n
-
 config HVC_TILE
 	depends on TTY
 	select HVC_DRIVER
diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
index 9ab078a..8a082bc 100644
--- a/arch/tile/include/asm/uaccess.h
+++ b/arch/tile/include/asm/uaccess.h
@@ -395,7 +395,12 @@ _copy_from_user(void *to, const void __user *from, unsigned long n)
 	return n;
 }
 
-#ifdef CONFIG_DEBUG_COPY_FROM_USER
+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+/*
+ * There are still unprovable places in the generic code as of 2.6.34, so this
+ * option is not really compatible with -Werror, which is more useful in
+ * general.
+ */
 extern void copy_from_user_overflow(void)
 	__compiletime_warning("copy_from_user() size is not provably correct");
 
diff --git a/arch/tile/lib/uaccess.c b/arch/tile/lib/uaccess.c
index f8d398c..030abe3 100644
--- a/arch/tile/lib/uaccess.c
+++ b/arch/tile/lib/uaccess.c
@@ -22,11 +22,3 @@ int __range_ok(unsigned long addr, unsigned long size)
 		 is_arch_mappable_range(addr, size));
 }
 EXPORT_SYMBOL(__range_ok);
-
-#ifdef CONFIG_DEBUG_COPY_FROM_USER
-void copy_from_user_overflow(void)
-{
-       WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
-#endif
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index a4f24f5..f045e0a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -20,6 +20,7 @@ config X86_64
 ### Arch settings
 config X86
 	def_bool y
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 	select HAVE_AOUT if X86_32
 	select HAVE_UNSTABLE_SCHED_CLOCK
 	select ARCH_SUPPORTS_NUMA_BALANCING
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index b322f12..dea0da5 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -292,20 +292,6 @@ config OPTIMIZE_INLINING
 
 	  If unsure, say N.
 
-config DEBUG_STRICT_USER_COPY_CHECKS
-	bool "Strict copy size checks"
-	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
-	---help---
-	  Enabling this option turns a certain set of sanity checks for user
-	  copy operations into compile time failures.
-
-	  The copy_from_user() etc checks are there to help test if there
-	  are sufficient security checks on the length argument of
-	  the copy operation, by having gcc prove that the argument is
-	  within bounds.
-
-	  If unsure, or if you run an older (pre 4.4) gcc, say N.
-
 config DEBUG_NMI_SELFTEST
 	bool "NMI Selftest"
 	depends on DEBUG_KERNEL && X86_LOCAL_APIC
diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
index f0312d7..3eb18ac 100644
--- a/arch/x86/lib/usercopy_32.c
+++ b/arch/x86/lib/usercopy_32.c
@@ -689,9 +689,3 @@ _copy_from_user(void *to, const void __user *from, unsigned long n)
 	return n;
 }
 EXPORT_SYMBOL(_copy_from_user);
-
-void copy_from_user_overflow(void)
-{
-	WARN(1, "Buffer overflow detected!\n");
-}
-EXPORT_SYMBOL(copy_from_user_overflow);
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 28be08c..ae80518 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1292,6 +1292,24 @@ config LATENCYTOP
 	  Enable this option if you want to use the LatencyTOP tool
 	  to find out which userspace is blocking on what kernel operations.
 
+config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	bool
+
+config DEBUG_STRICT_USER_COPY_CHECKS
+	bool "Strict user copy size checks"
+	depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
+	help
+	  Enabling this option turns a certain set of sanity checks for user
+	  copy operations into compile time failures.
+
+	  The copy_from_user() etc checks are there to help test if there
+	  are sufficient security checks on the length argument of
+	  the copy operation, by having gcc prove that the argument is
+	  within bounds.
+
+	  If unsure, say N.
+
 source mm/Kconfig.debug
 source kernel/trace/Kconfig
 
diff --git a/lib/Makefile b/lib/Makefile
index 32f4455..59fabd0 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -15,6 +15,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
 	 is_single_threaded.o plist.o decompress.o kobject_uevent.o \
 	 earlycpio.o percpu-refcount.o
 
+lib-$(CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS) += usercopy.o
 lib-$(CONFIG_MMU) += ioremap.o
 lib-$(CONFIG_SMP) += cpumask.o
 
diff --git a/lib/usercopy.c b/lib/usercopy.c
new file mode 100644
index 0000000..4f5b1dd
--- /dev/null
+++ b/lib/usercopy.c
@@ -0,0 +1,9 @@
+#include <linux/export.h>
+#include <linux/bug.h>
+#include <linux/uaccess.h>
+
+void copy_from_user_overflow(void)
+{
+	WARN(1, "Buffer overflow detected!\n");
+}
+EXPORT_SYMBOL(copy_from_user_overflow);
-- 
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Subject: Re: [PATCH] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECK
Date: Wed, 27 Feb 2013 20:32:20 +0000
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On Wednesday 27 February 2013, Stephen Boyd wrote:
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index 28be08c..ae80518 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -1292,6 +1292,24 @@ config LATENCYTOP
>  	  Enable this option if you want to use the LatencyTOP tool
>  	  to find out which userspace is blocking on what kernel operations.
>  
> +config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
> +	bool
> +
> +config DEBUG_STRICT_USER_COPY_CHECKS
> +	bool "Strict user copy size checks"
> +	depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
> +	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
> +	help
> +	  Enabling this option turns a certain set of sanity checks for user
> +	  copy operations into compile time failures.
> +
> +	  The copy_from_user() etc checks are there to help test if there
> +	  are sufficient security checks on the length argument of
> +	  the copy operation, by having gcc prove that the argument is
> +	  within bounds.
> +
> +	  If unsure, say N.
> +

Is there actually any architecture dependency left after this?
I wonder if we actually need the ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
symbol, or could just show the DEBUG_STRICT_USER_COPY_CHECKS option
on all architectures.

It's fine to do your patch as a first step though, which would not
change the behavior.

> diff --git a/lib/Makefile b/lib/Makefile
> index 32f4455..59fabd0 100644
> --- a/lib/Makefile
> +++ b/lib/Makefile
> @@ -15,6 +15,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
>  	 is_single_threaded.o plist.o decompress.o kobject_uevent.o \
>  	 earlycpio.o percpu-refcount.o
>  
> +lib-$(CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS) += usercopy.o
>  lib-$(CONFIG_MMU) += ioremap.o
>  lib-$(CONFIG_SMP) += cpumask.o
>

I think this should instead be

+lib-$(DEBUG_STRICT_USER_COPY_CHECKS) += usercopy.o

No point building that file if we are not using it.

Other than that, 

Acked-by: Arnd Bergmann <arnd@arndb.de>
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From: Stephen Boyd <sboyd@codeaurora.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECK
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On 02/27/13 12:32, Arnd Bergmann wrote:
> On Wednesday 27 February 2013, Stephen Boyd wrote:
>> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
>> index 28be08c..ae80518 100644
>> --- a/lib/Kconfig.debug
>> +++ b/lib/Kconfig.debug
>> @@ -1292,6 +1292,24 @@ config LATENCYTOP
>>  	  Enable this option if you want to use the LatencyTOP tool
>>  	  to find out which userspace is blocking on what kernel operations.
>>  
>> +config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
>> +	bool
>> +
>> +config DEBUG_STRICT_USER_COPY_CHECKS
>> +	bool "Strict user copy size checks"
>> +	depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
>> +	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
>> +	help
>> +	  Enabling this option turns a certain set of sanity checks for user
>> +	  copy operations into compile time failures.
>> +
>> +	  The copy_from_user() etc checks are there to help test if there
>> +	  are sufficient security checks on the length argument of
>> +	  the copy operation, by having gcc prove that the argument is
>> +	  within bounds.
>> +
>> +	  If unsure, say N.
>> +
> Is there actually any architecture dependency left after this?
> I wonder if we actually need the ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
> symbol, or could just show the DEBUG_STRICT_USER_COPY_CHECKS option
> on all architectures.
>
> It's fine to do your patch as a first step though, which would not
> change the behavior.

A lot of arches seem to not want to enable it because false positives
are everywhere. It really depends on how good the compiler is at doing
constant propagation and dead code removal.

>
>> diff --git a/lib/Makefile b/lib/Makefile
>> index 32f4455..59fabd0 100644
>> --- a/lib/Makefile
>> +++ b/lib/Makefile
>> @@ -15,6 +15,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
>>  	 is_single_threaded.o plist.o decompress.o kobject_uevent.o \
>>  	 earlycpio.o percpu-refcount.o
>>  
>> +lib-$(CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS) += usercopy.o
>>  lib-$(CONFIG_MMU) += ioremap.o
>>  lib-$(CONFIG_SMP) += cpumask.o
>>
> I think this should instead be
>
> +lib-$(DEBUG_STRICT_USER_COPY_CHECKS) += usercopy.o
>
> No point building that file if we are not using it.

We still need it to link the kernel because the callers of the function
don't have ifdefs. Also, all arches were doing an obj-y before, so this
is equivalent.

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On Wednesday 27 February 2013, Stephen Boyd wrote:
> On 02/27/13 12:32, Arnd Bergmann wrote:
> > On Wednesday 27 February 2013, Stephen Boyd wrote:
> >> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> >> index 28be08c..ae80518 100644
> >> --- a/lib/Kconfig.debug
> >> +++ b/lib/Kconfig.debug
> >> @@ -1292,6 +1292,24 @@ config LATENCYTOP
> >>  	  Enable this option if you want to use the LatencyTOP tool
> >>  	  to find out which userspace is blocking on what kernel operations.
> >>  
> >> +config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
> >> +	bool
> >> +
> >> +config DEBUG_STRICT_USER_COPY_CHECKS
> >> +	bool "Strict user copy size checks"
> >> +	depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
> >> +	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
> >> +	help
> >> +	  Enabling this option turns a certain set of sanity checks for user
> >> +	  copy operations into compile time failures.
> >> +
> >> +	  The copy_from_user() etc checks are there to help test if there
> >> +	  are sufficient security checks on the length argument of
> >> +	  the copy operation, by having gcc prove that the argument is
> >> +	  within bounds.
> >> +
> >> +	  If unsure, say N.
> >> +
> > Is there actually any architecture dependency left after this?
> > I wonder if we actually need the ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
> > symbol, or could just show the DEBUG_STRICT_USER_COPY_CHECKS option
> > on all architectures.
> >
> > It's fine to do your patch as a first step though, which would not
> > change the behavior.
> 
> A lot of arches seem to not want to enable it because false positives
> are everywhere. It really depends on how good the compiler is at doing
> constant propagation and dead code removal.

Ok, I see. Of course they would not need to enable that option, but
I guess if we know that enabling it doesn't work, there is no point
in providing the option.

> >>  
> >> +lib-$(CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS) += usercopy.o
> >>  lib-$(CONFIG_MMU) += ioremap.o
> >>  lib-$(CONFIG_SMP) += cpumask.o
> >>
> > I think this should instead be
> >
> > +lib-$(DEBUG_STRICT_USER_COPY_CHECKS) += usercopy.o
> >
> > No point building that file if we are not using it.
> 
> We still need it to link the kernel because the callers of the function
> don't have ifdefs. Also, all arches were doing an obj-y before, so this
> is equivalent.

Ok.

	Arnd
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From: Helge Deller <deller@gmx.de>
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Subject: upcoming patches for 3.9
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the following patches are queued in the "fixes-for-3.9" branch of my git tree at 
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git

Helge
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commit 31a54684da3c14384168889035c54d5cb3c6d32a
Author: Helge Deller <deller@gmx.de>
Date:   Wed Feb 27 00:37:12 2013 +0100

Avoid the following warning when configuring the kernel for parisc:
warning: (LOCKDEP && FAULT_INJECTION_STACKTRACE_FILTER && LATENCYTOP && KMEMCHECK) selects FRAME_POINTER \
which has unmet direct dependencies (DEBUG_KERNEL && (CRIS || M68K || FRV || UML || AVR32 || SUPERH ||  \
BLACKFIN || MN10300) || ARCH_WANT_FRAME_POINTERS)

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 7f9b3c5..313cce5 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -5,6 +5,7 @@ config PARISC
 	select HAVE_FUNCTION_TRACER if 64BIT
 	select HAVE_FUNCTION_GRAPH_TRACER if 64BIT
 	select HAVE_FUNCTION_TRACE_MCOUNT_TEST if 64BIT
+	select ARCH_WANT_FRAME_POINTERS
 	select RTC_CLASS
 	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
--
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commit 4e5a5143e77add104aeee9cd6a92a2f89ab6edd6
Author: Helge Deller <deller@gmx.de>
Date:   Wed Feb 27 00:14:56 2013 +0100

parisc: fix compile warnings triggered by atomic_sub(sizeof(),v)

This fixes compile warnings like this one:
net/ipv4/igmp.c: In function =E2=80=98ip_mc_leave_group=E2=80=99:
net/ipv4/igmp.c:1898:3: warning: overflow in implicit constant conversi=
on [-Woverflow]

atomic_sub() is defined as
and if VAL is of type unsigned int (as returned by sizeof()), negating
this value will overflow. Fix this by type-casting VAL to int type:

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm=
/atomic.h
index af9cf30..f38e198 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -115,8 +115,8 @@ static __inline__ int __atomic_add_unless(atomic_t =
*v, int a, int u)
 }
=20
=20
-#define atomic_add(i,v)	((void)(__atomic_add_return( (i),(v))))
-#define atomic_sub(i,v)	((void)(__atomic_add_return(-(i),(v))))
+#define atomic_add(i,v)	((void)(__atomic_add_return(        (i),(v))))
+#define atomic_sub(i,v)	((void)(__atomic_add_return(-((int) (i)),(v)))=
)
 #define atomic_inc(v)	((void)(__atomic_add_return(   1,(v))))
 #define atomic_dec(v)	((void)(__atomic_add_return(  -1,(v))))
=20
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commit c58c540c25a4ae98e021876cb32afb7794428267
Author: Helge Deller <deller@gmx.de>
Date:   Wed Feb 27 00:32:10 2013 +0100

parisc: switch to compat_functions of io_setup, io_getevents and io_submit

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index fc9cab1..a410b1b 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -310,10 +310,10 @@
 	ENTRY_COMP(sched_getaffinity)
 	ENTRY_SAME(ni_syscall)	/* set_thread_area */
 	ENTRY_SAME(ni_syscall)	/* get_thread_area */
-	ENTRY_SAME(io_setup)		/* 215 */
+	ENTRY_COMP(io_setup)		/* 215 */
 	ENTRY_SAME(io_destroy)
-	ENTRY_SAME(io_getevents)
-	ENTRY_SAME(io_submit)
+	ENTRY_COMP(io_getevents)
+	ENTRY_COMP(io_submit)
 	ENTRY_SAME(io_cancel)
 	ENTRY_SAME(alloc_hugepages)	/* 220 */
 	ENTRY_SAME(free_hugepages)
--
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commit db0c2fcccf9ea3dc30f6e3b910bca7f819fb3a21
Author: Helge Deller <deller@gmx.de>
Date:   Wed Feb 27 00:02:31 2013 +0100

parisc: remove unused variable 'compat_val'

clean up after commit 6e26aab98ce8a818fb1ec47f8f727a8480a9011b
(switch to generic sigaltstack)

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 98e9e71..940188d 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -242,7 +242,6 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	unsigned long haddr, sigframe_size;
 	int err = 0;
 #ifdef CONFIG_64BIT
-	compat_int_t compat_val;
 	struct compat_rt_sigframe __user * compat_frame;
 	compat_sigset_t compat_set;
 #endif
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Cc: Arnd Bergmann <arnd@arndb.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
	linux-parisc@vger.kernel.org, linux-s390@vger.kernel.org,
	Arjan van de Ven <arjan@linux.intel.com>,
	Helge Deller <deller@gmx.de>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Chris Metcalf <cmetcalf@tilera.com>
To: Stephen Boyd <sboyd@codeaurora.org>
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On 02/27/2013 12:42 PM, Stephen Boyd wrote:
>>
>> It's fine to do your patch as a first step though, which would not
>> change the behavior.
> 
> A lot of arches seem to not want to enable it because false positives
> are everywhere. It really depends on how good the compiler is at doing
> constant propagation and dead code removal.
> 

Although some of the cases I have seen being flagged as "false
positives" have been real bugs.

	-hpa


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Subject: parisc: avoid unitialized variable warning in pa_memcpy()
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commit eed0220c5b2f33e4da2e9ba207c798c1bdebe500
Author: Helge Deller <deller@gmx.de>
Date:   Wed Feb 27 00:06:48 2013 +0100

parisc: avoid unitialized variable warning in pa_memcpy()

Avoid this warning, while still prevent gcc from optimizing away the ex=
ception code:
arch/parisc/lib/memcpy.c: In function =E2=80=98pa_memcpy=E2=80=99:
arch/parisc/lib/memcpy.c:256:2: warning: =E2=80=98dummy=E2=80=99 may be=
 used uninitialized in this function [-Wuninitialized]

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index 1dbca5c..a49cc81 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -68,7 +68,7 @@
 DECLARE_PER_CPU(struct exception_data, exception_data);
=20
 #define preserve_branch(label)	do {					\
-	volatile int dummy;						\
+	volatile int dummy =3D 0;						\
 	/* The following branch is never taken, it's just here to  */	\
 	/* prevent gcc from optimizing away our exception code. */ 	\
 	if (unlikely(dummy !=3D dummy))					\
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Subject: parisc: check return value of down_interruptible() in hp_sdc_rtc.c
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commit 42dfe13d133f945b49377c29b8c828205b231b4c
Author: Helge Deller <deller@gmx.de>
Date:   Wed Feb 27 22:46:56 2013 +0100

parisc: check return value of down_interruptible() in hp_sdc_rtc.c

additionally comment out unused code (which may be used later)

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c
index 0b4f542..2e3334b 100644
--- a/drivers/input/misc/hp_sdc_rtc.c
+++ b/drivers/input/misc/hp_sdc_rtc.c
@@ -109,7 +109,9 @@ static int hp_sdc_rtc_do_read_bbrtc (struct rtc_time *rtctm)
 	
 	if (hp_sdc_enqueue_transaction(&t)) return -1;
 	
-	down_interruptible(&tsem);  /* Put ourselves to sleep for results. */
+	/* Put ourselves to sleep for results. */
+	if (WARN_ON(down_interruptible(&tsem)))
+		return -1;
 	
 	/* Check for nonpresence of BBRTC */
 	if (!((tseq[83] | tseq[90] | tseq[69] | tseq[76] |
@@ -176,11 +178,16 @@ static int64_t hp_sdc_rtc_read_i8042timer (uint8_t loadcmd, int numreg)
 	t.seq =			tseq;
 	t.act.semaphore =	&i8042tregs;
 
-	down_interruptible(&i8042tregs);  /* Sleep if output regs in use. */
+	/* Sleep if output regs in use. */
+	if (WARN_ON(down_interruptible(&i8042tregs)))
+		return -1;
 
 	if (hp_sdc_enqueue_transaction(&t)) return -1;
 	
-	down_interruptible(&i8042tregs);  /* Sleep until results come back. */
+	/* Sleep until results come back. */
+	if (WARN_ON(down_interruptible(&i8042tregs)))
+		return -1;
+
 	up(&i8042tregs);
 
 	return (tseq[5] | 
@@ -276,6 +283,7 @@ static inline int hp_sdc_rtc_read_ct(struct timeval *res) {
 }
 
 
+#if 0 /* not used yet */
 /* Set the i8042 real-time clock */
 static int hp_sdc_rtc_set_rt (struct timeval *setto)
 {
@@ -386,6 +394,7 @@ static int hp_sdc_rtc_set_i8042timer (struct timeval *setto, uint8_t setcmd)
 	}
 	return 0;
 }
+#endif
 
 static ssize_t hp_sdc_rtc_read(struct file *file, char __user *buf,
 			       size_t count, loff_t *ppos) {
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Cc: Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>,
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To: Stephen Boyd <sboyd@codeaurora.org>
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On 02/27/2013 04:00 AM, Stephen Boyd wrote:
> The help text for this config is duplicated across the x86,
> parisc, and s390 Kconfig.debug files. Arnd Bergman noted that the
> help text was slightly misleading and should be fixed to state
> that enabling this option isn't a problem when using pre 4.4 gcc.
> 
> To simplify the rewording, consolidate the text into
> lib/Kconfig.debug and modify it there to be more explicit about
> when you should say N to this config.
> 
> Also, make the text a bit more generic by stating that this
> option enables compile time checks so we can cover architectures
> which emit warnings vs. ones which emit errors. The details of
> how an architecture decided to implement the checks isn't as
> important as the concept of compile time checking of
> copy_from_user() calls.
> 
> While we're doing this, remove all the copy_from_user_overflow()
> code that's duplicated many times and place it into lib/ so that
> any architecture supporting this option can get the function for
> free.
> 
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: Ingo Molnar <mingo@elte.hu>
> Cc: H. Peter Anvin <hpa@zytor.com>
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-s390@vger.kernel.org
> Cc: Arjan van de Ven <arjan@linux.intel.com>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
> Cc: Chris Metcalf <cmetcalf@tilera.com>
> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
> ---
> 
> Per Helge Deller prodding me, I'm resending just this patch.

Yes, I found it in kernel patchwork and I think it's a good cleanup.
Tested OK on parisc:

Acked-by: Helge Deller <deller@gmx.de>




> https://patchwork.kernel.org/patch/833182/
> 
>  arch/parisc/Kconfig             |  1 +
>  arch/parisc/Kconfig.debug       | 14 --------------
>  arch/s390/Kconfig               |  1 +
>  arch/s390/Kconfig.debug         | 14 --------------
>  arch/s390/lib/Makefile          |  1 -
>  arch/s390/lib/usercopy.c        |  8 --------
>  arch/sparc/lib/Makefile         |  1 -
>  arch/sparc/lib/usercopy.c       |  9 ---------
>  arch/tile/Kconfig               |  8 +-------
>  arch/tile/include/asm/uaccess.h |  7 ++++++-
>  arch/tile/lib/uaccess.c         |  8 --------
>  arch/x86/Kconfig                |  1 +
>  arch/x86/Kconfig.debug          | 14 --------------
>  arch/x86/lib/usercopy_32.c      |  6 ------
>  lib/Kconfig.debug               | 18 ++++++++++++++++++
>  lib/Makefile                    |  1 +
>  lib/usercopy.c                  |  9 +++++++++
>  17 files changed, 38 insertions(+), 83 deletions(-)
>  delete mode 100644 arch/s390/lib/usercopy.c
>  delete mode 100644 arch/sparc/lib/usercopy.c
>  create mode 100644 lib/usercopy.c
> 
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index a2a47d9..96be92f 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -1,5 +1,6 @@
>  config PARISC
>  	def_bool y
> +	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
>  	select HAVE_IDE
>  	select HAVE_OPROFILE
>  	select HAVE_FUNCTION_TRACER if 64BIT
> diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
> index 7305ac8..bc989e5 100644
> --- a/arch/parisc/Kconfig.debug
> +++ b/arch/parisc/Kconfig.debug
> @@ -12,18 +12,4 @@ config DEBUG_RODATA
>           portion of the kernel code won't be covered by a TLB anymore.
>           If in doubt, say "N".
>  
> -config DEBUG_STRICT_USER_COPY_CHECKS
> -	bool "Strict copy size checks"
> -	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
> -	---help---
> -	  Enabling this option turns a certain set of sanity checks for user
> -	  copy operations into compile time failures.
> -
> -	  The copy_from_user() etc checks are there to help test if there
> -	  are sufficient security checks on the length argument of
> -	  the copy operation, by having gcc prove that the argument is
> -	  within bounds.
> -
> -	  If unsure, or if you run an older (pre 4.4) gcc, say N.
> -
>  endmenu
> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> index 4b50537..516621f 100644
> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -91,6 +91,7 @@ config S390
>  	select ARCH_INLINE_WRITE_UNLOCK_BH
>  	select ARCH_INLINE_WRITE_UNLOCK_IRQ
>  	select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
> +	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
>  	select ARCH_SAVE_PAGE_KEYS if HIBERNATION
>  	select ARCH_WANT_IPC_PARSE_VERSION
>  	select BUILDTIME_EXTABLE_SORT
> diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
> index fc32a2d..c56878e 100644
> --- a/arch/s390/Kconfig.debug
> +++ b/arch/s390/Kconfig.debug
> @@ -17,20 +17,6 @@ config STRICT_DEVMEM
>  
>  	  If you are unsure, say Y.
>  
> -config DEBUG_STRICT_USER_COPY_CHECKS
> -	def_bool n
> -	prompt "Strict user copy size checks"
> -	---help---
> -	  Enabling this option turns a certain set of sanity checks for user
> -	  copy operations into compile time warnings.
> -
> -	  The copy_from_user() etc checks are there to help test if there
> -	  are sufficient security checks on the length argument of
> -	  the copy operation, by having gcc prove that the argument is
> -	  within bounds.
> -
> -	  If unsure, or if you run an older (pre 4.4) gcc, say N.
> -
>  config S390_PTDUMP
>  	bool "Export kernel pagetable layout to userspace via debugfs"
>  	depends on DEBUG_KERNEL
> diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
> index 6ab0d0b..20b0e97 100644
> --- a/arch/s390/lib/Makefile
> +++ b/arch/s390/lib/Makefile
> @@ -3,7 +3,6 @@
>  #
>  
>  lib-y += delay.o string.o uaccess_std.o uaccess_pt.o
> -obj-y += usercopy.o
>  obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o mem32.o
>  obj-$(CONFIG_64BIT) += mem64.o
>  lib-$(CONFIG_64BIT) += uaccess_mvcos.o
> diff --git a/arch/s390/lib/usercopy.c b/arch/s390/lib/usercopy.c
> deleted file mode 100644
> index 14b363f..0000000
> --- a/arch/s390/lib/usercopy.c
> +++ /dev/null
> @@ -1,8 +0,0 @@
> -#include <linux/module.h>
> -#include <linux/bug.h>
> -
> -void copy_from_user_overflow(void)
> -{
> -	WARN(1, "Buffer overflow detected!\n");
> -}
> -EXPORT_SYMBOL(copy_from_user_overflow);
> diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
> index 8410065f2..dbe119b 100644
> --- a/arch/sparc/lib/Makefile
> +++ b/arch/sparc/lib/Makefile
> @@ -45,4 +45,3 @@ obj-y                 += iomap.o
>  obj-$(CONFIG_SPARC32) += atomic32.o ucmpdi2.o
>  obj-y                 += ksyms.o
>  obj-$(CONFIG_SPARC64) += PeeCeeI.o
> -obj-y                 += usercopy.o
> diff --git a/arch/sparc/lib/usercopy.c b/arch/sparc/lib/usercopy.c
> deleted file mode 100644
> index 5c4284c..0000000
> --- a/arch/sparc/lib/usercopy.c
> +++ /dev/null
> @@ -1,9 +0,0 @@
> -#include <linux/module.h>
> -#include <linux/kernel.h>
> -#include <linux/bug.h>
> -
> -void copy_from_user_overflow(void)
> -{
> -	WARN(1, "Buffer overflow detected!\n");
> -}
> -EXPORT_SYMBOL(copy_from_user_overflow);
> diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
> index 1404497..9d65a48 100644
> --- a/arch/tile/Kconfig
> +++ b/arch/tile/Kconfig
> @@ -19,6 +19,7 @@ config TILE
>  	select HAVE_SYSCALL_WRAPPERS if TILEGX
>  	select HAVE_VIRT_TO_BUS
>  	select SYS_HYPERVISOR
> +	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
>  	select ARCH_HAVE_NMI_SAFE_CMPXCHG
>  	select GENERIC_CLOCKEVENTS
>  	select MODULES_USE_ELF_RELA
> @@ -117,13 +118,6 @@ config STRICT_DEVMEM
>  config SMP
>  	def_bool y
>  
> -# Allow checking for compile-time determined overflow errors in
> -# copy_from_user().  There are still unprovable places in the
> -# generic code as of 2.6.34, so this option is not really compatible
> -# with -Werror, which is more useful in general.
> -config DEBUG_COPY_FROM_USER
> -	def_bool n
> -
>  config HVC_TILE
>  	depends on TTY
>  	select HVC_DRIVER
> diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
> index 9ab078a..8a082bc 100644
> --- a/arch/tile/include/asm/uaccess.h
> +++ b/arch/tile/include/asm/uaccess.h
> @@ -395,7 +395,12 @@ _copy_from_user(void *to, const void __user *from, unsigned long n)
>  	return n;
>  }
>  
> -#ifdef CONFIG_DEBUG_COPY_FROM_USER
> +#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
> +/*
> + * There are still unprovable places in the generic code as of 2.6.34, so this
> + * option is not really compatible with -Werror, which is more useful in
> + * general.
> + */
>  extern void copy_from_user_overflow(void)
>  	__compiletime_warning("copy_from_user() size is not provably correct");
>  
> diff --git a/arch/tile/lib/uaccess.c b/arch/tile/lib/uaccess.c
> index f8d398c..030abe3 100644
> --- a/arch/tile/lib/uaccess.c
> +++ b/arch/tile/lib/uaccess.c
> @@ -22,11 +22,3 @@ int __range_ok(unsigned long addr, unsigned long size)
>  		 is_arch_mappable_range(addr, size));
>  }
>  EXPORT_SYMBOL(__range_ok);
> -
> -#ifdef CONFIG_DEBUG_COPY_FROM_USER
> -void copy_from_user_overflow(void)
> -{
> -       WARN(1, "Buffer overflow detected!\n");
> -}
> -EXPORT_SYMBOL(copy_from_user_overflow);
> -#endif
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index a4f24f5..f045e0a 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -20,6 +20,7 @@ config X86_64
>  ### Arch settings
>  config X86
>  	def_bool y
> +	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
>  	select HAVE_AOUT if X86_32
>  	select HAVE_UNSTABLE_SCHED_CLOCK
>  	select ARCH_SUPPORTS_NUMA_BALANCING
> diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
> index b322f12..dea0da5 100644
> --- a/arch/x86/Kconfig.debug
> +++ b/arch/x86/Kconfig.debug
> @@ -292,20 +292,6 @@ config OPTIMIZE_INLINING
>  
>  	  If unsure, say N.
>  
> -config DEBUG_STRICT_USER_COPY_CHECKS
> -	bool "Strict copy size checks"
> -	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
> -	---help---
> -	  Enabling this option turns a certain set of sanity checks for user
> -	  copy operations into compile time failures.
> -
> -	  The copy_from_user() etc checks are there to help test if there
> -	  are sufficient security checks on the length argument of
> -	  the copy operation, by having gcc prove that the argument is
> -	  within bounds.
> -
> -	  If unsure, or if you run an older (pre 4.4) gcc, say N.
> -
>  config DEBUG_NMI_SELFTEST
>  	bool "NMI Selftest"
>  	depends on DEBUG_KERNEL && X86_LOCAL_APIC
> diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
> index f0312d7..3eb18ac 100644
> --- a/arch/x86/lib/usercopy_32.c
> +++ b/arch/x86/lib/usercopy_32.c
> @@ -689,9 +689,3 @@ _copy_from_user(void *to, const void __user *from, unsigned long n)
>  	return n;
>  }
>  EXPORT_SYMBOL(_copy_from_user);
> -
> -void copy_from_user_overflow(void)
> -{
> -	WARN(1, "Buffer overflow detected!\n");
> -}
> -EXPORT_SYMBOL(copy_from_user_overflow);
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index 28be08c..ae80518 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -1292,6 +1292,24 @@ config LATENCYTOP
>  	  Enable this option if you want to use the LatencyTOP tool
>  	  to find out which userspace is blocking on what kernel operations.
>  
> +config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
> +	bool
> +
> +config DEBUG_STRICT_USER_COPY_CHECKS
> +	bool "Strict user copy size checks"
> +	depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
> +	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
> +	help
> +	  Enabling this option turns a certain set of sanity checks for user
> +	  copy operations into compile time failures.
> +
> +	  The copy_from_user() etc checks are there to help test if there
> +	  are sufficient security checks on the length argument of
> +	  the copy operation, by having gcc prove that the argument is
> +	  within bounds.
> +
> +	  If unsure, say N.
> +
>  source mm/Kconfig.debug
>  source kernel/trace/Kconfig
>  
> diff --git a/lib/Makefile b/lib/Makefile
> index 32f4455..59fabd0 100644
> --- a/lib/Makefile
> +++ b/lib/Makefile
> @@ -15,6 +15,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
>  	 is_single_threaded.o plist.o decompress.o kobject_uevent.o \
>  	 earlycpio.o percpu-refcount.o
>  
> +lib-$(CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS) += usercopy.o
>  lib-$(CONFIG_MMU) += ioremap.o
>  lib-$(CONFIG_SMP) += cpumask.o
>  
> diff --git a/lib/usercopy.c b/lib/usercopy.c
> new file mode 100644
> index 0000000..4f5b1dd
> --- /dev/null
> +++ b/lib/usercopy.c
> @@ -0,0 +1,9 @@
> +#include <linux/export.h>
> +#include <linux/bug.h>
> +#include <linux/uaccess.h>
> +
> +void copy_from_user_overflow(void)
> +{
> +	WARN(1, "Buffer overflow detected!\n");
> +}
> +EXPORT_SYMBOL(copy_from_user_overflow);
> 


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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECK
Date: Thu, 28 Feb 2013 09:45:10 +1100
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Approved: news@gmane.org
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Cc: Stephen Boyd <sboyd@codeaurora.org>, Arnd Bergmann <arnd@arndb.de>,
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	linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
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Hi all,

On Wed, 27 Feb 2013 14:19:16 -0800 "H. Peter Anvin" <hpa@zytor.com> wrote:
>
> Although some of the cases I have seen being flagged as "false
> positives" have been real bugs.

[hijacking the thread :-)]

I have been getting this warning for a very long time ( which would be an
error if CONFIG_DEBUG_STRICT_USER_COPY_CHECK was set):

i386 defconfig
i386-linux-gcc (GCC) 4.6.3

In file included from arch/x86/include/asm/uaccess.h:537:0,
                 from include/linux/uaccess.h:5,
                 from include/linux/highmem.h:8,
                 from include/linux/pagemap.h:10,
                 from fs/binfmt_misc.c:27:
arch/x86/include/asm/uaccess_32.h: In function 'parse_command.part.2':
arch/x86/include/asm/uaccess_32.h:211:26: warning: call to 'copy_from_user_=
overflow' declared with attribute warning: copy_from_user() buffer size is =
not provably correct [enabled by default]

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

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From - Thu Nov 08 21:08:59 2018
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Subject: Re: [PATCH] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECK
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Cc: Arnd Bergmann <arnd@arndb.de>,
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On 02/27/13 14:19, H. Peter Anvin wrote:
> On 02/27/2013 12:42 PM, Stephen Boyd wrote:
>>> It's fine to do your patch as a first step though, which would not
>>> change the behavior.
>> A lot of arches seem to not want to enable it because false positives
>> are everywhere. It really depends on how good the compiler is at doing
>> constant propagation and dead code removal.
>>
> Although some of the cases I have seen being flagged as "false
> positives" have been real bugs.

There were so many false-positives on x86_64 that Andrew eventually
dropped my patch to add support for this option to the copy_from_user()
function there.

-- 
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On 02/27/2013 02:45 PM, Stephen Rothwell wrote:
> Hi all,
> 
> On Wed, 27 Feb 2013 14:19:16 -0800 "H. Peter Anvin" <hpa@zytor.com>
> wrote:
>> 
>> Although some of the cases I have seen being flagged as "false 
>> positives" have been real bugs.
> 
> [hijacking the thread :-)]
> 
> I have been getting this warning for a very long time ( which would
> be an error if CONFIG_DEBUG_STRICT_USER_COPY_CHECK was set):
> 
> i386 defconfig i386-linux-gcc (GCC) 4.6.3
> 
> In file included from arch/x86/include/asm/uaccess.h:537:0, from
> include/linux/uaccess.h:5, from include/linux/highmem.h:8, from
> include/linux/pagemap.h:10, from fs/binfmt_misc.c:27: 
> arch/x86/include/asm/uaccess_32.h: In function
> 'parse_command.part.2': arch/x86/include/asm/uaccess_32.h:211:26:
> warning: call to 'copy_from_user_overflow' declared with attribute
> warning: copy_from_user() buffer size is not provably correct
> [enabled by default]
> 

OK, that is surprising, because that copy is very clearly properly
guarded:

static int parse_command(const char __user *buffer, size_t count)
{
	char s[4];

	if (!count)
		return 0;
	if (count > 3)
		return -EINVAL;
	if (copy_from_user(s, buffer, count))
		return -EFAULT;

It isn't possible for count to be anything other than 1, 2 or 3 there,
and it is very surprising that gcc can't see it.

This might be worth filing a gcc bug for.

	-hpa

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To: Stephen Boyd <sboyd@codeaurora.org>
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On 02/27/2013 02:52 PM, Stephen Boyd wrote:
> On 02/27/13 14:19, H. Peter Anvin wrote:
>> On 02/27/2013 12:42 PM, Stephen Boyd wrote:
>>>> It's fine to do your patch as a first step though, which would not
>>>> change the behavior.
>>> A lot of arches seem to not want to enable it because false positives
>>> are everywhere. It really depends on how good the compiler is at doing
>>> constant propagation and dead code removal.
>>>
>> Although some of the cases I have seen being flagged as "false
>> positives" have been real bugs.
> 
> There were so many false-positives on x86_64 that Andrew eventually
> dropped my patch to add support for this option to the copy_from_user()
> function there.
> 

I would probably have taken it, especially if it came with more x86-64
to i386 unification.

It's an option, though.

	-hpa

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On 2/27/2013 2:45 PM, Stephen Rothwell wrote:
> Hi all,
>
> On Wed, 27 Feb 2013 14:19:16 -0800 "H. Peter Anvin" <hpa@zytor.com> wrote:
>>
>> Although some of the cases I have seen being flagged as "false
>> positives" have been real bugs.
>
> [hijacking the thread :-)]
>
> I have been getting this warning for a very long time ( which would be an
> error if CONFIG_DEBUG_STRICT_USER_COPY_CHECK was set):
>
> i386 defconfig
> i386-linux-gcc (GCC) 4.6.3
>
> In file included from arch/x86/include/asm/uaccess.h:537:0,
>                   from include/linux/uaccess.h:5,
>                   from include/linux/highmem.h:8,
>                   from include/linux/pagemap.h:10,
>                   from fs/binfmt_misc.c:27:
> arch/x86/include/asm/uaccess_32.h: In function 'parse_command.part.2':
> arch/x86/include/asm/uaccess_32.h:211:26: warning: call to 'copy_from_user_overflow' declared with attribute warning: copy_from_user() buffer size is not provably correct [enabled by default]
>


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35392

the gcc folks finally fixed that one it seems

(but while there are some false positives, esp with older gcc, the majority were real originally.. just those all got fixed)


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	James Bottomley <James.Bottomley@hansenpartnership.com>
To: Helge Deller <deller@gmx.de>
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Helge Deller wrote:

> atomic_sub() is defined as
> and if VAL is of type unsigned int (as returned by sizeof()), negating
> this value will overflow. Fix this by type-casting VAL to int type:

Something in the first line of the message seems missing.

Eike
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From: Stephen Boyd <sboyd@codeaurora.org>
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Subject: Re: [PATCH] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECK
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Cc: Arnd Bergmann <arnd@arndb.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
	linux-parisc@vger.kernel.org, linux-s390@vger.kernel.org,
	Arjan van de Ven <arjan@linux.intel.com>,
	Helge Deller <deller@gmx.de>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Chris Metcalf <cmetcalf@tilera.com>
To: "H. Peter Anvin" <hpa@zytor.com>
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On 02/27/13 14:55, H. Peter Anvin wrote:
> On 02/27/2013 02:52 PM, Stephen Boyd wrote:
>> On 02/27/13 14:19, H. Peter Anvin wrote:
>>> On 02/27/2013 12:42 PM, Stephen Boyd wrote:
>>>>> It's fine to do your patch as a first step though, which would not
>>>>> change the behavior.
>>>> A lot of arches seem to not want to enable it because false positives
>>>> are everywhere. It really depends on how good the compiler is at doing
>>>> constant propagation and dead code removal.
>>>>
>>> Although some of the cases I have seen being flagged as "false
>>> positives" have been real bugs.
>> There were so many false-positives on x86_64 that Andrew eventually
>> dropped my patch to add support for this option to the copy_from_user()
>> function there.
>>
> I would probably have taken it, especially if it came with more x86-64
> to i386 unification.
>
> It's an option, though.

You acked the patch[1]. Will you pick it up?

[1] https://patchwork.kernel.org/patch/833192/

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From - Thu Nov 08 21:09:00 2018
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From: "H. Peter Anvin" <hpa@zytor.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] Consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECK
Date: Wed, 27 Feb 2013 15:21:06 -0800
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References: <1361934016-22630-1-git-send-email-sboyd@codeaurora.org> <201302272032.21014.arnd@arndb.de> <512E6FA9.4060504@codeaurora.org> <512E8664.3070903@zytor.com> <512E8E48.8020007@codeaurora.org> <512E8ECF.1080307@zytor.com> <512E9480.7020306@codeaurora.org>
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Cc: Arnd Bergmann <arnd@arndb.de>,
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	linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
	linux-parisc@vger.kernel.org, linux-s390@vger.kernel.org,
	Arjan van de Ven <arjan@linux.intel.com>,
	Helge Deller <deller@gmx.de>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
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	Chris Metcalf <cmetcalf@tilera.com>
To: Stephen Boyd <sboyd@codeaurora.org>
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On 02/27/2013 03:19 PM, Stephen Boyd wrote:
> On 02/27/13 14:55, H. Peter Anvin wrote:
>> On 02/27/2013 02:52 PM, Stephen Boyd wrote:
>>> On 02/27/13 14:19, H. Peter Anvin wrote:
>>>> On 02/27/2013 12:42 PM, Stephen Boyd wrote:
>>>>>> It's fine to do your patch as a first step though, which would not
>>>>>> change the behavior.
>>>>> A lot of arches seem to not want to enable it because false positives
>>>>> are everywhere. It really depends on how good the compiler is at doing
>>>>> constant propagation and dead code removal.
>>>>>
>>>> Although some of the cases I have seen being flagged as "false
>>>> positives" have been real bugs.
>>> There were so many false-positives on x86_64 that Andrew eventually
>>> dropped my patch to add support for this option to the copy_from_user()
>>> function there.
>>>
>> I would probably have taken it, especially if it came with more x86-64
>> to i386 unification.
>>
>> It's an option, though.
> 
> You acked the patch[1]. Will you pick it up?
> 
> [1] https://patchwork.kernel.org/patch/833192/
> 

I can, although I would prefer if it came with the uaccess/usercopy
unification.

	-hpa

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From - Thu Nov 08 21:09:00 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: fix compile warnings triggered by atomic_sub(sizeof(),v)
Date: Thu, 28 Feb 2013 00:41:17 +0100
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Cc: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@hansenpartnership.com>
To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 02/28/2013 12:09 AM, Rolf Eike Beer wrote:
> Helge Deller wrote:
> 
>> atomic_sub() is defined as
>> and if VAL is of type unsigned int (as returned by sizeof()), negating
>> this value will overflow. Fix this by type-casting VAL to int type:
> 
> Something in the first line of the message seems missing.

Oops...
This line:
#define atomic_sub(VAL,v)        ((void)(__atomic_add_return(-(VAL),(v))))
is missing.
It was probably ignored by git am or was eaten by vi due to the "#" :-(

I'll fix that.

Thanks!
Helge 

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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: [PATCH] [parisc] do not install modules when installing kernel
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PA-RISC is the only arch that installs the modules when installing the =
kernel.

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
---
 arch/parisc/Makefile | 4 +---
 1 Datei ge=E4ndert, 1 Zeile hinzugef=FCgt(+), 3 Zeilen entfernt(-)

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index ed9a14c..01d95e2 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -113,12 +113,10 @@ palo: vmlinux
 # Shorthands for known targets not supported by parisc, use vmlinux as=
 default
 Image zImage bzImage: vmlinux
=20
-kernel_install: vmlinux
+install: vmlinux
 	sh $(src)/arch/parisc/install.sh \
 			$(KERNELRELEASE) $< System.map "$(INSTALL_PATH)"
=20
-install: kernel_install modules_install

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: parisc: fix redefinition of SET_PERSONALITY
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commit cf8e18ea2f8be26e8f9e44ed677d25f558ca301a
Author: Helge Deller <deller@gmx.de>
Date:   Sat Mar 2 20:15:28 2013 +0100

commit e72837e3e7bae3f182c4ac63c9424e86f1158dd0 introduced
a default SET_PERSONALITY() in include/linux/elf.h.
This breaks with our own SET_PERSONALITY define for
32bit userspace on 64bit kernel.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/binfmt_elf32.c b/arch/parisc/kernel/binfmt_elf32.c
index f61692d..00dc66f 100644
--- a/arch/parisc/kernel/binfmt_elf32.c
+++ b/arch/parisc/kernel/binfmt_elf32.c
@@ -85,6 +85,7 @@ struct elf_prpsinfo32
  * could set a processor dependent flag in the thread_struct.
  */
 
+#undef SET_PERSONALITY
 #define SET_PERSONALITY(ex) \
 	set_thread_flag(TIF_32BIT); \
 	current->thread.map_base = DEFAULT_MAP_BASE32; \
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On 03/01/2013 11:23 PM, Rolf Eike Beer wrote:
> PA-RISC is the only arch that installs the modules when installing th=
e kernel.
>=20
> Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>


Thanks!

Applied to my fixes-for-3.9-latest branch at
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git

Helge

> ---
>  arch/parisc/Makefile | 4 +---
>  1 Datei ge=E4ndert, 1 Zeile hinzugef=FCgt(+), 3 Zeilen entfernt(-)
>=20
> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
> index ed9a14c..01d95e2 100644
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
> @@ -113,12 +113,10 @@ palo: vmlinux
>  # Shorthands for known targets not supported by parisc, use vmlinux =
as default
>  Image zImage bzImage: vmlinux
> =20
> -kernel_install: vmlinux
> +install: vmlinux
>  	sh $(src)/arch/parisc/install.sh \
>  			$(KERNELRELEASE) $< System.map "$(INSTALL_PATH)"
> =20
> -install: kernel_install modules_install
> -
>  CLEAN_FILES	+=3D lifimage
>  MRPROPER_FILES	+=3D palo.conf
> =20
>=20

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On Monday 04 February 2013 12:11:25 John David Anglin wrote:
> On 2/4/2013 11:37 AM, Helge Deller wrote:
> >>> Von: Rolf Eike Beer <eike-kernel@sf-tec.de>
> >>>=20
> >>> Helge Deller wrote:
> >>>> This is the first patch in a series of 4, with which the page cache
> >>>> flushing of
> >>>> parisc will gets fixed and enhanced. This even fixes the nasty
> >>>> "minifail" bug
> >>>> (http://wiki.parisc-linux.org/TestCases?highlight=3D%28minifail%29)
> >>>> which
> >>>> prevented parisc to stay an official debian port.  Basically the
> >>>> flush in
> >>>> copy_user_page together with the TLB patch from commit
> >>>> 7139bc1579901b53db7e898789e916ee2fb52d78 is what fixes the minifail
> >>>> bug.
> >>>=20
> >>> Is this series expected to fix the thread related problems I see in t=
he
> >>> git testsuite?
> >>=20
> >> I expect so, if not, please let us know!
> >=20
> > Ahem... actually:
> > MAYBE!!!
> >=20
> > The problem is, that you probably will need an updated glibc (and maybe
> > compiler) as well. Dave has done a lot of work to fix stuff. We have
> > copied the most important update-packages to ftp.parisc-linux.org. To
> > update, just make sure the following lines are in your
> > /etc/apt/source.list file: deb ftp://ftp.de.debian.org/debian-ports
> > unstable main
> > deb ftp://ftp.parisc-linux.org/debian-ports/unstable unstable main
> > deb-src ftp://ftp.de.debian.org/debian unstable main
> >=20
> > Do *not* just update to the packages of debian-ports.org. If you do that
> > it will render your system unbootable, since the udev-package is broken
> > and it will not find your discs at startup.
> >=20
> > It's on my todo-list to upload further packages, update the website on
> > how to update your system, and of course to get a buildd working...
>=20
> Just a note, these packages are for debian systems.  I believe that Eike =
is
> running gentoo.  With respect to glibc, Carlos had a set of changes which=
 I
> submitted to Debian.  The full set was accepted around the -30 unstable
> release.
> I think most of these are in gentoo but the matter needs review.

afaik, Gentoo's glibc-2.17 should have all relevant fixes
=2Dmike

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From - Thu Nov 08 21:09:00 2018
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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Hi Linus,

The following changes since commit b0af9cd9aab60ceb17d3ebabb9fdf4ff0a99cf50:

  Merge tag 'lzo-update-signature-20130226' of git://github.com/markus-oberhumer/linux (2013-02-28 20:45:52 -0800)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git fixes-for-3.9-latest

for you to fetch changes up to cf8e18ea2f8be26e8f9e44ed677d25f558ca301a:

  parisc: fix redefinition of SET_PERSONALITY (2013-03-02 20:15:28 +0100)

----------------------------------------------------------------

Second round of patches for the parisc architecture for Linux 3.9

The most important fix in this branch is the switch of io_setup,
io_getevents and io_submit syscalls to use the available compat
syscalls when running 32bit userspace on 64bit kernel.
Other than that it's mostly removal of compile warnings.

----------------------------------------------------------------
Helge Deller (7):
      parisc: select ARCH_WANT_FRAME_POINTERS
      parisc: switch to compat_functions of io_setup, io_getevents and io_submit
      parisc: remove unused variable 'compat_val'
      parisc: avoid unitialized variable warning in pa_memcpy()
      parisc: check return value of down_interruptible() in hp_sdc_rtc.c
      parisc: fix compile warnings triggered by atomic_sub(sizeof(),v)
      parisc: fix redefinition of SET_PERSONALITY

Rolf Eike Beer (1):
      parisc: do not install modules when installing kernel

 arch/parisc/Kconfig                |  1 +
 arch/parisc/Makefile               |  4 +---
 arch/parisc/include/asm/atomic.h   |  4 ++--
 arch/parisc/kernel/binfmt_elf32.c  |  1 +
 arch/parisc/kernel/signal.c        |  1 -
 arch/parisc/kernel/syscall_table.S |  6 +++---
 arch/parisc/lib/memcpy.c           |  2 +-
 drivers/input/misc/hp_sdc_rtc.c    | 15 ++++++++++++---
 8 files changed, 21 insertions(+), 13 deletions(-)
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Hi Helge,

On 2-Mar-13, at 2:42 PM, Helge Deller wrote:

> Applied to my fixes-for-3.9-latest branch at
> http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git


I built the above branch yesterday.  We seem to have a regression in  
behavior.
My build of perl 5.14.2-18 failed with the following error:

....
Failed 1 test out of 2039, 99.95% okay.
         op/sigdispatch.t
### Since not all tests were successful, you may want to run some of
### them individually and examine any diagnostic messages they produce.
### See the INSTALL document's section on "make test".
### You have a good chance to get more information by running
###   ./perl harness
### in the 't' directory since most (>=80%) of the tests succeeded.
### You may have to set your dynamic library search path,
### LD_LIBRARY_PATH, to point to the build directory:
###   setenv LD_LIBRARY_PATH `pwd`; cd t; ./perl harness
###   LD_LIBRARY_PATH=`pwd`; export LD_LIBRARY_PATH; cd t; ./perl  
harness
###   export LD_LIBRARY_PATH=`pwd`; cd t; ./perl harness
### for csh-style shells, like tcsh; or for traditional/modern
### Bourne-style shells, like bash, ksh, and zsh, respectively.
u=18.18  s=28.38  cu=1367.86  cs=974.72  scripts=2039  tests=465774
make[1]: *** [test] Error 1
make[1]: Leaving directory `/home/dave/debian/perl/perl-5.14.2'
make: *** [perl.static] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
Build command 'cd perl-5.14.2 && dpkg-buildpackage -b -uc' failed.

I ran ./perl harness again and the same test failed.  As this looked
like a kernel issue, I tried the build again with 3.7.6+ and had a  
successful
build.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:09:00 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] [parisc] do not install modules when installing kernel
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Cc: Rolf Eike Beer <eike-kernel@sf-tec.de>,
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To: John David Anglin <dave.anglin@bell.net>
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On 03/03/2013 10:25 PM, John David Anglin wrote:
> Hi Helge,
> 
> On 2-Mar-13, at 2:42 PM, Helge Deller wrote:
> 
>> Applied to my fixes-for-3.9-latest branch at
>> http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git
> 
> 
> I built the above branch yesterday.  We seem to have a regression in behavior.
> My build of perl 5.14.2-18 failed with the following error:
> 
> ....
> Failed 1 test out of 2039, 99.95% okay.
>         op/sigdispatch.t
> ### Since not all tests were successful, you may want to run some of
> ### them individually and examine any diagnostic messages they produce.
> ### See the INSTALL document's section on "make test".
> ### You have a good chance to get more information by running
> ###   ./perl harness
> ### in the 't' directory since most (>=80%) of the tests succeeded.
> ### You may have to set your dynamic library search path,
> ### LD_LIBRARY_PATH, to point to the build directory:
> ###   setenv LD_LIBRARY_PATH `pwd`; cd t; ./perl harness
> ###   LD_LIBRARY_PATH=`pwd`; export LD_LIBRARY_PATH; cd t; ./perl harness
> ###   export LD_LIBRARY_PATH=`pwd`; cd t; ./perl harness
> ### for csh-style shells, like tcsh; or for traditional/modern
> ### Bourne-style shells, like bash, ksh, and zsh, respectively.
> u=18.18  s=28.38  cu=1367.86  cs=974.72  scripts=2039  tests=465774
> make[1]: *** [test] Error 1
> make[1]: Leaving directory `/home/dave/debian/perl/perl-5.14.2'
> make: *** [perl.static] Error 2
> dpkg-buildpackage: error: debian/rules build gave error exit status 2
> Build command 'cd perl-5.14.2 && dpkg-buildpackage -b -uc' failed.
> 
> I ran ./perl harness again and the same test failed.  As this looked
> like a kernel issue, I tried the build again with 3.7.6+ and had a successful
> build.

Hi Dave,

please pull Linus tree again on top.
There is a patch-fix from Al Viro regarding signals....
Just a guess....and 3.9 is still not stable...

Helge
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Am Freitag 22 Februar 2013, 22:16:15 schrieb Helge Deller:
> Hi Linus,
> 
> The following changes since commit 19f949f52599ba7c3f67a5897ac6be14bfcb1200:
> 
>   Linux 3.8 (2013-02-18 15:58:34 -0800)
> 
> are available in the git repository at:

Can we get some of them into the stable series so we have a kernel that let's 
e.g. git work properly before may?

Greetings,

Eike
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From - Thu Nov 08 21:09:01 2018
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On 9-Mar-13, at 4:20 PM, Rolf Eike Beer wrote:

> Am Freitag 22 Februar 2013, 22:16:15 schrieb Helge Deller:
>> Hi Linus,
>>
>> The following changes since commit  
>> 19f949f52599ba7c3f67a5897ac6be14bfcb1200:
>>
>>  Linux 3.8 (2013-02-18 15:58:34 -0800)
>>
>> are available in the git repository at:
>
> Can we get some of them into the stable series so we have a kernel  
> that let's
> e.g. git work properly before may?


3.9-rc1 (no patches) is working well for me on rp3440.  It's been  
building GCC and
debian packages for 5+ days.

Thanks Helge for all the updates!

Dave
--
John David Anglin	dave.anglin@bell.net



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Subject: PA8800 with 3.9.0-rc1-JeR-10942-g6dbe51c : WARNING: at
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--MP_/MEflJxHANEqpE2x8XuAx=g=
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Booting... <Cpu0> 000010e800e00000  0000000000000000  CC_BOOT_INIT_PRI_PATH

Boot IO Dependent Code (IODC) revision 2
<Cpu0> 0000109000e00000  0000000000000000  CC_BOOT_LOAD_IPL_PRI_PATH
<Cpu0> 160012cb00e00000  0000000000000000  CC_MPS_SLAVE_WAKEUP_ALL
<Cpu0> 160012cd00e00000  0000000000000001  CC_MPS_SLAVE_WAKEUP
<Cpu0> 080012ce00e00000  000000f0f0d07860  CC_MPS_SLAVE_WAKE_FUNC
<Cpu1> 160012d501e00000  0100020000000052  CC_MPS_SLAVE_AWAKE
<Cpu0> 0000097c00e00000  00009000010000ff  CC_BOOT_MONARCH_SLAVE_CHECK
<Cpu1> 080012d601e00000  000000f0f0d07860  CC_MPS_SLAVE_WAKE_ADDR
<Cpu0> 160012cf00e00000  000090000100000e  CC_MPS_CPU_WAITING
<Cpu1> 0300096301e00000  0000000008000008  CC_BOOT_MEM_CPU_RENDEZVOUS
<Cpu1> 160012d301e00000  0100900000000000  CC_MPS_SLAVE_SLEEPING
<Cpu1> 080012d401e00000  000000f0f0d07dc0  CC_MPS_SLAVE_SLEEP_ADDR
<Cpu0> 160012d000e00000  0000900001000000  CC_MPS_CPU_WAIT_OVER


HARD Booted.
<Cpu0> 0000107e00e00000  0000000000000000  CC_BOOT_LAUNCH_IPL_PRI
<Cpu0> 0100142900e00000  fffffff0f0e0ac00  CC_CPU_INTRIGUE_LDB
<Cpu0> 3400082100e00000  0000000000000001  CC_BOOT_BOOT_COMPLETE
palo ipl 1.18 portage@karsten Wed Jan 30 03:41:23 CET 2013

Partition Start(MB) End(MB) Id Type
1               1      14   f0 Palo
2              15    1048   83 ext2
3            1049    3100   82 swap
4            3101   70003   83 ext2

PALO(F0) partition contains:

Command line for kernel: 'root=/dev/sda4 sti_font=VGA8x16 sti=0/4/0/0 console=ttyB0 palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 6938624 mediaptr 0x1000
Segment 1 load 0080a110 size 952560 mediaptr 0x69f110
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 3.9.0-rc1-JeR-10942-g6dbe51c (jeroen@karsten) (gcc version 4.7.2 (Gentoo 4.7.2 p1.3) ) #1 SMP PREEMPT Thu Mar 14 18:58:11 CET 2013
[    0.000000] unwind_init: start = 0x406a2000, end = 0x406dde20, entries = 15330
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 000088a0 00000491 00000000 00000002 56f8f25b673eb55a 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000302
[    0.000000] CPUID vers 20 rev 5 (0x00000285)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/785/C8000
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
[    0.000000] Total Memory: 2046 MB
[    0.000000] PERCPU: Embedded 10 pages/cpu @0000000041a25000 s10752 r8192 d22016 u40960
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 2 zonelists in Zone order, mobility grouping on.  Total pages: 516615
[    0.000000] Kernel command line: root=/dev/sda4 sti_font=VGA8x16 sti=0/4/0/0 console=ttyB0 palo_kernel=2/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[    0.000000] Memory: 2049644k/2095104k available (4818k kernel code, 45460k reserved, 1906k data, 364k init)
[    0.000000] virtual kernel memory layout:
    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    0.000000]     memory  : 0x0000000040000000 - 0x00000040bfe00000   (264190 MB)
    0.000000]       .init : 0x0000000040898000 - 0x00000000408f3000   ( 364 kB)
    0.000000]       .data : 0x00000000405b48c0 - 0x00000000407913b0   (1906 kB)
    0.000000]       .text : 0x0000000040100000 - 0x00000000405b48c0   (4818 kB)
[    0.000000] SLUB: Genslabs=11, HWalign=64, Order=0-3, MinObjects=0, CPUs=32, Nodes=8
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000] NR_IRQS:128
[    0.000000] Console: colour dummy device 160x64
[    0.060000] Calibrating delay loop... 1795.07 BogoMIPS (lpj=3590144)
[    0.164000] pid_max: default: 32768 minimum: 301
[    0.224000] Mount-cache hash table entries: 256
[    0.284000] Initializing cgroup subsys cpuacct
[    0.344000] Initializing cgroup subsys devices
[    0.400000] Initializing cgroup subsys freezer
[    0.460000] Initializing cgroup subsys blkio
[    0.532000] Brought up 1 CPUs
[    0.572000] devtmpfs: initialized
[    0.616000] xor: measuring software checksum speed
[    0.720000]    8regs     :  4241.000 MB/sec
[    0.812000]    8regs_prefetch:  3216.000 MB/sec
[    0.908000]    32regs    :  3463.000 MB/sec
[    1.000000]    32regs_prefetch:  3238.000 MB/sec
[    1.060000] xor: using function: 8regs (4241.000 MB/sec)
[    1.128000] NET: Registered protocol family 16
[    1.188000] EISA bus registered
[    1.232000] Searching for devices...
[    1.380000] Found devices:
[    1.416000] 1. Crestone Peak Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x88a, 0x00004 }
[    1.524000] 2. Crestone Peak Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x88a, 0x00004 }
[    1.628000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0b6, 0x00009 }
[    1.720000] 4. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
[    1.832000] 5. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
[    1.940000] 6. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
[    2.048000] 7. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
[    2.156000] 8. Quicksilver AGP Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x784, 0x0000a }
[    2.268000] 9. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
[    2.372000] 10. unknown device at 0xfffffff0f05e0000 [17] { 10, 0x0, 0x076, 0x000ad }
[    2.476000] 11. unknown device at 0xfffffff0f05e2000 [18] { 10, 0x0, 0x076, 0x000ad }
[    2.580000] Enabling PDC_PAT chassis codes support v0.05
<Cpu0> 38000c6400e00000  a0e008101100c000  CC_PAT_ENCODED_FIELD_MAJOR_FWD_PROG
<Cpu0> 36000c6a00e00000  0000000000000420  CC_PAT_DATA_FIELD_MAJOR_FWD_PROG
[    3.476000] Releasing cpu 1 now, hpa=fffffffffe781000
<Cpu1> 0000099101e00000  0000000000000000  CC_BOOT_OS_RENDEZVOUS
<Cpu1> 0100142901e00000  fffffff0f0e0ac00  CC_CPU_INTRIGUE_LDB
[    3.900000] FP[1] enabled: Rev 1 Model 20
[    3.904000] CPU(s): 2 x PA8800 (Mako) at 900.000000 MHz
[    4.032000] Setting cache flush threshold to 2000000 (2 CPUs online)
[    4.252000] SBA found Pluto 2.3 at 0xfffffffffed00000
[    4.396000] Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
[    4.524000] LBA 0:0: PCI host bridge to bus 0000:00
[    4.592000] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    4.672000] pci_bus 0000:00: root bus resource [mem 0xffffffff80000000-0xffffffff8fffffff] (bus address [0x80000000-0x8fffffff])
[    4.824000] pci_bus 0000:00: root bus resource [mem 0xffffff0000000000-0xffffff0fffffffff]
[    4.932000] pci_bus 0000:00: root bus resource [bus 00-07]
[    5.020000] Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
[    5.148000] LBA 0:2: PCI host bridge to bus 0000:40
[    5.212000] pci_bus 0000:40: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
[    5.332000] pci_bus 0000:40: root bus resource [mem 0xffffffffa0000000-0xffffffffafffffff] (bus address [0xa0000000-0xafffffff])
[    5.484000] pci_bus 0000:40: root bus resource [mem 0xffffff2000000000-0xffffff2fffffffff]
[    5.592000] pci_bus 0000:40: root bus resource [bus 40-47]
[    5.680000] Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
[    5.808000] LBA 0:3: PCI host bridge to bus 0000:60
[    5.872000] pci_bus 0000:60: root bus resource [io  0x20000-0x2ffff] (bus address [0x0000-0xffff])
[    5.992000] pci_bus 0000:60: root bus resource [mem 0xffffffffb0000000-0xffffffffbfffffff] (bus address [0xb0000000-0xbfffffff])
[    6.144000] pci_bus 0000:60: root bus resource [mem 0xffffff3000000000-0xffffff3fffffffff]
[    6.252000] pci_bus 0000:60: root bus resource [bus 60-67]
[    6.340000] Quicksilver version TR1.0 (0x10) found at 0xfffffffffed28000
[    6.472000] LBA 0:4: PCI host bridge to bus 0000:80
[    6.536000] pci_bus 0000:80: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0xffff])
[    6.656000] pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffcfffffff] (bus address [0xc0000000-0xcfffffff])
[    6.808000] pci_bus 0000:80: root bus resource [mem 0xffffff4000000000-0xffffff4fffffffff]
[    6.916000] pci_bus 0000:80: root bus resource [bus 80-87]
<Cpu0> 0300108200e00000  0000000000000000  CC_PROCS_ENTRY_IN
<Cpu0> 0300030700e00000  0000000000000000  CC_SYSTEM_STATE_RUNNING_OK
[    7.396000] powersw: Soft power switch at 0xfffffff0f042e278 enabled.
[    7.492000] bio: create slab <bio-0> at 0
[    7.616000] raid6: int64x1    869 MB/s
[    7.732000] raid6: int64x2   1077 MB/s
[    7.848000] raid6: int64x4   1118 MB/s
[    7.912000] ------------[ cut here ]------------
[    7.912000] WARNING: at lib/timerqueue.c:74
[    7.912000] Modules linked in:
[    7.912000]
[    7.912000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[    7.912000] PSW: 00001000000001001111111100001110 Not tainted
[    7.912000] r00-03  000000ff0804ff0e 0000000040887a10 000000004016a9b4 000000007fc45010
[    7.912000] r04-07  000000004086b210 0000000041a25700 0000000041a25540 0000000000000002
[    7.912000] r08-11  0000000000000000 0000000025c17800 0000000041a25530 0000000041a25530
[    7.912000] r12-15  000000004087f210 0000000000000001 0000000041a25520 00000000406f01c0
[    7.912000] r16-19  0000000000000001 0000000000000004 00000000407855c0 00000001d7978a00
[    7.912000] r20-23  0000000000000000 0000000000000000 0000000000000000 0000000000000159
[    7.912000] r24-27  0000000000000002 0000000041a25700 0000000041a25540 000000004086b210
[    7.912000] r28-31  000000004074f040 000000007fc44fe0 000000007fc450a0 0000000000000000
[    7.912000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    7.912000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    7.912000]
[    7.912000] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004035cf6c 000000004035cf70
[    7.912000]  IIR: 03ffe01f    ISR: 0000000010040000  IOR: 00000001d3f4f040
[    7.912000]  CPU:        0   CR30: 000000007fc44000 CR31: ffffffffffffffff
[    7.912000]  ORIG_R28: 0000000040115420
[    7.912000]  IAOQ[0]: timerqueue_del+0x3c/0xa0
[    7.912000]  IAOQ[1]: timerqueue_del+0x40/0xa0
[    7.912000]  RP(r2): __remove_hrtimer.isra.24+0x44/0x90
[    7.912000] Backtrace:
[    7.912000]  [<000000004016a9b4>] __remove_hrtimer.isra.24+0x44/0x90
[    7.912000]  [<000000004016b1d4>] hrtimer_run_queues+0x1e4/0x2f0
[    7.912000]  [<000000004014fbd8>] run_local_timers+0x20/0x48
[    7.912000]  [<000000004014fc58>] update_process_times+0x58/0xd8
[    7.912000]  [<000000004011b080>] timer_interrupt+0x1b8/0x208
[    7.912000]  [<00000000401b7d34>] handle_irq_event_percpu+0xc4/0x308
[    7.912000]  [<00000000401bca78>] handle_percpu_irq+0xa8/0xe8
[    7.912000]  [<00000000401b728c>] generic_handle_irq+0x54/0x70
[    7.912000]  [<000000004011bccc>] do_cpu_irq_mask+0x20c/0x2a8
[    7.912000]  [<0000000040105074>] intr_return+0x0/0x4
[    7.912000]  [<0000000040172df4>] finish_task_switch+0x44/0x150
[    7.912000]  [<0000000040104020>] end_fault_vector+0x20/0x28
[    7.912000]  [<000000004023e558>] mntput_no_expire+0xa0/0x260
[    7.912000]  [<000000004023e750>] mntput+0x38/0x50
[    7.912000]  [<0000000040223c14>] path_put+0x3c/0x58
[    7.912000]  [<000000004011346c>] __schedule+0x4cc/0x640
[    7.912000]
[    7.912000] ---[ end trace c2961b48c8a696d9 ]---

--MP_/MEflJxHANEqpE2x8XuAx=g=
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: PA8800 with 3.9.0-rc1-JeR-10942-g6dbe51c : WARNING: at lib/timerqueue.c:74
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On 15-Mar-13, at 10:22 AM, Jeroen Roovers wrote:

> [    7.912000] WARNING: at lib/timerqueue.c:74

Is this reproducible?  I have seen the occasional RB issue but I've
never been able to reproduce them.

Dave
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Subject: Re: PA8800 with 3.9.0-rc1-JeR-10942-g6dbe51c : WARNING: at
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On Sat, 16 Mar 2013 18:34:17 -0400
John David Anglin <dave.anglin@bell.net> wrote:

> On 15-Mar-13, at 10:22 AM, Jeroen Roovers wrote:
> 
> > [    7.912000] WARNING: at lib/timerqueue.c:74
> 
> Is this reproducible?  I have seen the occasional RB issue but I've
> never been able to reproduce them.

Yes. Every time I boot this kernel with Helge's patches, built with
the previously attached config, it trips on this very same issue.


     jer
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Subject: Re: PA8800 with 3.9.0-rc1-JeR-10942-g6dbe51c : WARNING: at lib/timerqueue.c:74
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Hi Jeroen,

On 03/18/2013 01:58 PM, Jeroen Roovers wrote:
> On Sat, 16 Mar 2013 18:34:17 -0400
> John David Anglin <dave.anglin@bell.net> wrote:
> 
>> On 15-Mar-13, at 10:22 AM, Jeroen Roovers wrote:
>>
>>> [    7.912000] WARNING: at lib/timerqueue.c:74
>>
>> Is this reproducible?  I have seen the occasional RB issue but I've
>> never been able to reproduce them.
> 
> Yes. Every time I boot this kernel with Helge's patches, built with
> the previously attached config, it trips on this very same issue.

Which patches are you referring to? All my patches are upstream in 3.9.0-rcX.

I built a kernel with your config as well, but did not ran into the issues you have.
But that's not really surprising, since I tested on a different 1-CPU machine only...

Just looking at your config (which I diffed with the one I use), I would suggest that you play around with a few of the following options to narrow down the problem (ignore the +/- -> should just give you an idea what to change).
Out of your backtrace it seems there is a problem with timer/SMP/locking or similiar (or just our old cache-problem)...

Helge

-CONFIG_GENERIC_LOCKBREAK=y
-CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_PREEMPT_RCU=y
+CONFIG_TREE_RCU=y
+# CONFIG_PREEMPT_RCU is not set
-# CONFIG_RCU_BOOST is not set
-CONFIG_SLUB_DEBUG=y
-# CONFIG_COMPAT_BRK is not set
-# CONFIG_SLAB is not set
-CONFIG_SLUB=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
-CONFIG_UNINLINE_SPIN_UNLOCK=y
-CONFIG_MUTEX_SPIN_ON_OWNER=y
+CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
+CONFIG_INLINE_READ_UNLOCK=y
+CONFIG_INLINE_READ_UNLOCK_IRQ=y
+CONFIG_INLINE_WRITE_UNLOCK=y
+CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
-# CONFIG_PREEMPT_NONE is not set
+CONFIG_PREEMPT_NONE=y
-CONFIG_PREEMPT=y
-CONFIG_PREEMPT_COUNT=y
+# CONFIG_PREEMPT is not set

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On 19-Mar-13, at 6:38 PM, Helge Deller wrote:

> Out of your backtrace it seems there is a problem with timer/SMP/ 
> locking or similiar (or just our old cache-problem)...

Based on testing with rc1 and rc2, we still have some cache issues,  
although far less than before.  For some
reason, rc2 seemed worse than rc1.  Testing rc3.

This seems to be a kernel issue, so I'm not sure why we would have  
cache issues.

Dave
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Subject: Re: PA8800 with 3.9.0-rc1-JeR-10942-g6dbe51c : WARNING: at
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On Tue, 19 Mar 2013 23:38:59 +0100
Helge Deller <deller@gmx.de> wrote:

> Just looking at your config (which I diffed with the one I use), I
> would suggest that you play around with a few of the following
> options to narrow down the problem (ignore the +/- -> should just
> give you an idea what to change). Out of your backtrace it seems
> there is a problem with timer/SMP/locking or similiar (or just our
> old cache-problem)...

> -CONFIG_GENERIC_LOCKBREAK=y
> -CONFIG_TREE_PREEMPT_RCU=y
> -CONFIG_PREEMPT_RCU=y
> +CONFIG_TREE_RCU=y
> +# CONFIG_PREEMPT_RCU is not set
> -# CONFIG_RCU_BOOST is not set
> -CONFIG_SLUB_DEBUG=y
> -# CONFIG_COMPAT_BRK is not set
> -# CONFIG_SLAB is not set
> -CONFIG_SLUB=y
> +CONFIG_SLAB=y
> +# CONFIG_SLUB is not set
> +# CONFIG_SLOB is not set
> -CONFIG_UNINLINE_SPIN_UNLOCK=y
> -CONFIG_MUTEX_SPIN_ON_OWNER=y
> +CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
> +CONFIG_INLINE_READ_UNLOCK=y
> +CONFIG_INLINE_READ_UNLOCK_IRQ=y
> +CONFIG_INLINE_WRITE_UNLOCK=y
> +CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
> -# CONFIG_PREEMPT_NONE is not set
> +CONFIG_PREEMPT_NONE=y
> -CONFIG_PREEMPT=y
> -CONFIG_PREEMPT_COUNT=y
> +# CONFIG_PREEMPT is not set

All of the above are changed by just this change:

-# CONFIG_PREEMPT_NONE is not set
+CONFIG_PREEMPT_NONE=y
 # CONFIG_PREEMPT_VOLUNTARY is not set
-CONFIG_PREEMPT=y
-CONFIG_PREEMPT_COUNT=y
+# CONFIG_PREEMPT is not set

and yes, that makes the kernel boot properly again. I haven't tried the
third option, CONFIG_PREEMPT_VOLUNTARY.


Regards,
     jer
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On Wed, 20 Mar 2013 18:27:56 +0100
Jeroen Roovers <jer@gentoo.org> wrote:

> > -# CONFIG_SLAB is not set
> > -CONFIG_SLUB=y
> > +CONFIG_SLAB=y
> > +# CONFIG_SLUB is not set
> > +# CONFIG_SLOB is not set

> All of the above are changed by just this change:

Except SLAB/SLOB/SLUB, of course.


      jer
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On 3/20/2013 1:27 PM, Jeroen Roovers wrote:
> +CONFIG_PREEMPT_NONE=y
Given that CONFIG_PREEMPT is broken, we must be missing at least one
preempt_disable()/preempt_enable() pair.

Dave

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On 20-Mar-13, at 4:12 PM, John David Anglin wrote:

> On 3/20/2013 1:27 PM, Jeroen Roovers wrote:
>> +CONFIG_PREEMPT_NONE=y
> Given that CONFIG_PREEMPT is broken, we must be missing at least one
> preempt_disable()/preempt_enable() pair.


You might try the attached change.  My rp3440 booted with  
CONFIG_PREEMPT=y
and CONFIG_PREEMPT_NONE=y with it.  The fix is just a guess.

Dave
--
John David Anglin	dave.anglin@bell.net



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diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 4b12890..1871724 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -372,10 +372,12 @@ void flush_kernel_dcache_page_addr(void *addr)
 {
 	unsigned long flags;
 
+	preempt_disable();
 	flush_kernel_dcache_page_asm(addr);
 	purge_tlb_start(flags);
 	pdtlb_kernel(addr);
 	purge_tlb_end(flags);
+	preempt_enable();
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 

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On Wed, 20 Mar 2013 22:02:55 -0400
John David Anglin <dave.anglin@bell.net> wrote:

> On 20-Mar-13, at 4:12 PM, John David Anglin wrote:
> 
> > On 3/20/2013 1:27 PM, Jeroen Roovers wrote:
> >> +CONFIG_PREEMPT_NONE=y
> > Given that CONFIG_PREEMPT is broken, we must be missing at least one
> > preempt_disable()/preempt_enable() pair.
> 
> 
> You might try the attached change.  My rp3440 booted with  
> CONFIG_PREEMPT=y
> and CONFIG_PREEMPT_NONE=y with it.  The fix is just a guess.

That gave me the exact same error.


     jer
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From: Helge Deller <deller@gmx.de>
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Hi Kurt,

On 03/22/2013 12:43 PM, Kurt Fitzner wrote:
> I see on the PA-RISC Linux web site a note about Squeeze being worked on
> for HPPA.  I also see a few old discussions on the subject here.  Did
> this ever make it past the discussion stage?

Partly...

> Was there an HPPA testing back in Lenny, or just unstable?  What I am
> looking for, I suppose, is the most "squeeze-like" packages available.

- latest before-squeeze unstable packages were moved to debian-ports.org
- John David Anglin has continued to build current debian "unstable" packages
- I've provided a download-location at ftp.parisc-linux.org for those.

So, what you need to do is to drop other lines from your /etc/apt/sources.list file, and instead add those two lines:

deb ftp://ftp.de.debian.org/debian-ports unstable main
deb ftp://ftp.parisc-linux.org/debian-ports/unstable  unstable main

This will bring you up to debian-unstable (which is more like wheezy) for the most important packages.
If you miss specific packages, please let us know.

Dave and me are still hoping to be able to set up a buildd-server for parisc again.

Helge
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On 23-Mar-13, at 6:04 PM, Helge Deller wrote:

> Hi Kurt,
>
> On 03/22/2013 12:43 PM, Kurt Fitzner wrote:
>> I see on the PA-RISC Linux web site a note about Squeeze being  
>> worked on
>> for HPPA.  I also see a few old discussions on the subject here.  Did
>> this ever make it past the discussion stage?
>
> Partly...
>
>> Was there an HPPA testing back in Lenny, or just unstable?  What I am
>> looking for, I suppose, is the most "squeeze-like" packages  
>> available.
>
> - latest before-squeeze unstable packages were moved to debian- 
> ports.org
> - John David Anglin has continued to build current debian "unstable"  
> packages
> - I've provided a download-location at ftp.parisc-linux.org for those.

I would really recommend going with the packages at ftp://ftp.parisc-linux.org/debian-ports/unstable
instead of the squeeze packages on debian-ports.org.  The dependencies  
are somewhat broken for
the stuff on debian-ports.org and great care is needed in installing  
these packages.  For example,
the udev package on debian-ports is a bootstrap breaker.  It might be  
that we could fill in the squeeze
port but it would be a fair bit of work.

>
> So, what you need to do is to drop other lines from your /etc/apt/ 
> sources.list file, and instead add those two lines:
>
> deb ftp://ftp.de.debian.org/debian-ports unstable main
> deb ftp://ftp.parisc-linux.org/debian-ports/unstable  unstable main

For unstable sources, add this line:

deb-src http://ftp.debian.org/debian/ unstable main contrib non-free

>
> This will bring you up to debian-unstable (which is more like  
> wheezy) for the most important packages.
> If you miss specific packages, please let us know.

I'm wondering if we should capture what we have as it's almost  
wheezy.  Soon unstable will start to
diverge for the next release.

You should be aware that I have not built the current kernel package  
as I we need the latest fixes
in the kernel.org tree.

>
> Dave and me are still hoping to be able to set up a buildd-server  
> for parisc again.

Without a buildd-server, it's a bit hard to tell what we are  
missing...  However, we currently have all
the major tool chains that have been ported to hppa.  Thus, most stuff  
can be built from source without
problems.  However, we have problems with openjdk and other similar  
packages that don't
support stack grows up.

>
> Helge


Dave
--
John David Anglin	dave.anglin@bell.net



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Prepare for removing num_physpages and simplify mem_init().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: linux-parisc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 arch/parisc/mm/init.c |   46 +++-------------------------------------------
 1 file changed, 3 insertions(+), 43 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1fe9d841..f80c175 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -214,7 +214,6 @@ static void __init setup_bootmem(void)
 	mem_limit_func();       /* check for "mem=" argument */
 
 	mem_max = 0;
-	num_physpages = 0;
 	for (i = 0; i < npmem_ranges; i++) {
 		unsigned long rsize;
 
@@ -229,10 +228,8 @@ static void __init setup_bootmem(void)
 				npmem_ranges = i + 1;
 				mem_max = mem_limit;
 			}
-	        num_physpages += pmem_ranges[i].pages;
 			break;
 		}
-	    num_physpages += pmem_ranges[i].pages;
 		mem_max += rsize;
 	}
 
@@ -532,7 +529,7 @@ void free_initmem(void)
 	 * pages are no-longer executable */
 	flush_icache_range(init_begin, init_end);
 	
-	num_physpages += free_initmem_default(-1);
+	free_initmem_default(-1);
 
 	/* set up a new led state on systems shipped LED State panel */
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE);
@@ -580,8 +577,6 @@ unsigned long pcxl_dma_start __read_mostly;
 
 void __init mem_init(void)
 {
-	int codesize, reservedpages, datasize, initsize;
-
 	/* Do sanity checks on page table constants */
 	BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
 	BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));
@@ -603,33 +598,6 @@ void __init mem_init(void)
 	}
 #endif
 
-	codesize = (unsigned long)_etext - (unsigned long)_text;
-	datasize = (unsigned long)_edata - (unsigned long)_etext;
-	initsize = (unsigned long)__init_end - (unsigned long)__init_begin;
-
-	reservedpages = 0;
-{
-	unsigned long pfn;
-#ifdef CONFIG_DISCONTIGMEM
-	int i;
-
-	for (i = 0; i < npmem_ranges; i++) {
-		for (pfn = node_start_pfn(i); pfn < node_end_pfn(i); pfn++) {
-			if (PageReserved(pfn_to_page(pfn)))
-				reservedpages++;
-		}
-	}
-#else /* !CONFIG_DISCONTIGMEM */
-	for (pfn = 0; pfn < max_pfn; pfn++) {
-		/*
-		 * Only count reserved RAM pages
-		 */
-		if (PageReserved(pfn_to_page(pfn)))
-			reservedpages++;
-	}
-#endif
-}
-
 #ifdef CONFIG_PA11
 	if (hppa_dma_ops == &pcxl_dma_ops) {
 		pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
@@ -643,15 +611,7 @@ void __init mem_init(void)
 	parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
 #endif
 
-	printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n",
-		nr_free_pages() << (PAGE_SHIFT-10),
-		num_physpages << (PAGE_SHIFT-10),
-		codesize >> 10,
-		reservedpages << (PAGE_SHIFT-10),
-		datasize >> 10,
-		initsize >> 10
-	);
-
+	mem_init_print_info(NULL);
 #ifdef CONFIG_DEBUG_KERNEL /* double-sanity-check paranoia */
 	printk("virtual kernel memory layout:\n"
 	       "    vmalloc : 0x%p - 0x%p   (%4ld MB)\n"
@@ -1099,6 +1059,6 @@ void flush_tlb_all(void)
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-	num_physpages += free_reserved_area(start, end, -1, "initrd");
+	free_reserved_area(start, end, -1, "initrd");
 }
 #endif
-- 
1.7.9.5

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Subject: [RFC PATCH v2, part4 27/39] mm/PARISC: prepare for removing num_physpages and simplify mem_init()
Date: Sun, 24 Mar 2013 15:25:11 +0800
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	Wen Congyang <wency@cn.fujitsu.com>,
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	Minchan Kim <minchan@kernel.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
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To: Andrew Morton <akpm@linux-foundation.org>,
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Prepare for removing num_physpages and simplify mem_init().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: linux-parisc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 arch/parisc/mm/init.c |   46 +++-------------------------------------------
 1 file changed, 3 insertions(+), 43 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1fe9d841..f80c175 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -214,7 +214,6 @@ static void __init setup_bootmem(void)
 	mem_limit_func();       /* check for "mem=" argument */
 
 	mem_max = 0;
-	num_physpages = 0;
 	for (i = 0; i < npmem_ranges; i++) {
 		unsigned long rsize;
 
@@ -229,10 +228,8 @@ static void __init setup_bootmem(void)
 				npmem_ranges = i + 1;
 				mem_max = mem_limit;
 			}
-	        num_physpages += pmem_ranges[i].pages;
 			break;
 		}
-	    num_physpages += pmem_ranges[i].pages;
 		mem_max += rsize;
 	}
 
@@ -532,7 +529,7 @@ void free_initmem(void)
 	 * pages are no-longer executable */
 	flush_icache_range(init_begin, init_end);
 	
-	num_physpages += free_initmem_default(-1);
+	free_initmem_default(-1);
 
 	/* set up a new led state on systems shipped LED State panel */
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE);
@@ -580,8 +577,6 @@ unsigned long pcxl_dma_start __read_mostly;
 
 void __init mem_init(void)
 {
-	int codesize, reservedpages, datasize, initsize;
-
 	/* Do sanity checks on page table constants */
 	BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
 	BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));
@@ -603,33 +598,6 @@ void __init mem_init(void)
 	}
 #endif
 
-	codesize = (unsigned long)_etext - (unsigned long)_text;
-	datasize = (unsigned long)_edata - (unsigned long)_etext;
-	initsize = (unsigned long)__init_end - (unsigned long)__init_begin;
-
-	reservedpages = 0;
-{
-	unsigned long pfn;
-#ifdef CONFIG_DISCONTIGMEM
-	int i;
-
-	for (i = 0; i < npmem_ranges; i++) {
-		for (pfn = node_start_pfn(i); pfn < node_end_pfn(i); pfn++) {
-			if (PageReserved(pfn_to_page(pfn)))
-				reservedpages++;
-		}
-	}
-#else /* !CONFIG_DISCONTIGMEM */
-	for (pfn = 0; pfn < max_pfn; pfn++) {
-		/*
-		 * Only count reserved RAM pages
-		 */
-		if (PageReserved(pfn_to_page(pfn)))
-			reservedpages++;
-	}
-#endif
-}
-
 #ifdef CONFIG_PA11
 	if (hppa_dma_ops == &pcxl_dma_ops) {
 		pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
@@ -643,15 +611,7 @@ void __init mem_init(void)
 	parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
 #endif
 
-	printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n",
-		nr_free_pages() << (PAGE_SHIFT-10),
-		num_physpages << (PAGE_SHIFT-10),
-		codesize >> 10,
-		reservedpages << (PAGE_SHIFT-10),
-		datasize >> 10,
-		initsize >> 10
-	);
-
+	mem_init_print_info(NULL);
 #ifdef CONFIG_DEBUG_KERNEL /* double-sanity-check paranoia */
 	printk("virtual kernel memory layout:\n"
 	       "    vmalloc : 0x%p - 0x%p   (%4ld MB)\n"
@@ -1099,6 +1059,6 @@ void flush_tlb_all(void)
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-	num_physpages += free_reserved_area(start, end, -1, "initrd");
+	free_reserved_area(start, end, -1, "initrd");
 }
 #endif
-- 
1.7.9.5

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From - Thu Nov 08 21:09:02 2018
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X-Mozilla-Keys:                                                                                 
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From: Jiang Liu <liuj97@gmail.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v3, part4 27/39] mm/PARISC: prepare for removing num_physpages and simplify mem_init()
Date: Tue, 26 Mar 2013 23:54:46 +0800
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Cc: Jiang Liu <jiang.liu@huawei.com>,
	Wen Congyang <wency@cn.fujitsu.com>,
	Mel Gorman <mgorman@suse.de>,
	Minchan Kim <minchan@kernel.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
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To: Andrew Morton <akpm@linux-foundation.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/96863>

Prepare for removing num_physpages and simplify mem_init().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: linux-parisc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
Hi all,
	Sorry for my mistake that my previous patch series has been screwed up.
So I regenerate a third version and also set up a git tree at:
	git://github.com/jiangliu/linux.git mem_init
	Any help to review and test are welcomed!

	Regards!
	Gerry
---
 arch/parisc/mm/init.c |   46 +++-------------------------------------------
 1 file changed, 3 insertions(+), 43 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1fe9d841..f80c175 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -214,7 +214,6 @@ static void __init setup_bootmem(void)
 	mem_limit_func();       /* check for "mem=" argument */
 
 	mem_max = 0;
-	num_physpages = 0;
 	for (i = 0; i < npmem_ranges; i++) {
 		unsigned long rsize;
 
@@ -229,10 +228,8 @@ static void __init setup_bootmem(void)
 				npmem_ranges = i + 1;
 				mem_max = mem_limit;
 			}
-	        num_physpages += pmem_ranges[i].pages;
 			break;
 		}
-	    num_physpages += pmem_ranges[i].pages;
 		mem_max += rsize;
 	}
 
@@ -532,7 +529,7 @@ void free_initmem(void)
 	 * pages are no-longer executable */
 	flush_icache_range(init_begin, init_end);
 	
-	num_physpages += free_initmem_default(-1);
+	free_initmem_default(-1);
 
 	/* set up a new led state on systems shipped LED State panel */
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE);
@@ -580,8 +577,6 @@ unsigned long pcxl_dma_start __read_mostly;
 
 void __init mem_init(void)
 {
-	int codesize, reservedpages, datasize, initsize;
-
 	/* Do sanity checks on page table constants */
 	BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
 	BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));
@@ -603,33 +598,6 @@ void __init mem_init(void)
 	}
 #endif
 
-	codesize = (unsigned long)_etext - (unsigned long)_text;
-	datasize = (unsigned long)_edata - (unsigned long)_etext;
-	initsize = (unsigned long)__init_end - (unsigned long)__init_begin;
-
-	reservedpages = 0;
-{
-	unsigned long pfn;
-#ifdef CONFIG_DISCONTIGMEM
-	int i;
-
-	for (i = 0; i < npmem_ranges; i++) {
-		for (pfn = node_start_pfn(i); pfn < node_end_pfn(i); pfn++) {
-			if (PageReserved(pfn_to_page(pfn)))
-				reservedpages++;
-		}
-	}
-#else /* !CONFIG_DISCONTIGMEM */
-	for (pfn = 0; pfn < max_pfn; pfn++) {
-		/*
-		 * Only count reserved RAM pages
-		 */
-		if (PageReserved(pfn_to_page(pfn)))
-			reservedpages++;
-	}
-#endif
-}
-
 #ifdef CONFIG_PA11
 	if (hppa_dma_ops == &pcxl_dma_ops) {
 		pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
@@ -643,15 +611,7 @@ void __init mem_init(void)
 	parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
 #endif
 
-	printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n",
-		nr_free_pages() << (PAGE_SHIFT-10),
-		num_physpages << (PAGE_SHIFT-10),
-		codesize >> 10,
-		reservedpages << (PAGE_SHIFT-10),
-		datasize >> 10,
-		initsize >> 10
-	);
-
+	mem_init_print_info(NULL);
 #ifdef CONFIG_DEBUG_KERNEL /* double-sanity-check paranoia */
 	printk("virtual kernel memory layout:\n"
 	       "    vmalloc : 0x%p - 0x%p   (%4ld MB)\n"
@@ -1099,6 +1059,6 @@ void flush_tlb_all(void)
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-	num_physpages += free_reserved_area(start, end, -1, "initrd");
+	free_reserved_area(start, end, -1, "initrd");
 }
 #endif
-- 
1.7.9.5

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From - Thu Nov 08 21:09:02 2018
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Subject: lib/mpi/generic_mpih-mul1.c:50:3: error: inconsistent operand
 constraints in an 'asm'
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Hi Dmitry,

FYI, kernel build failed on

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux master
head:   a12183c62717ac4579319189a00f5883a18dff08
commit: 5ce3e312ec5c11abce13215be70700778bf601f0 crypto: GnuPG based MPI lib - header files (part 2)
date:   1 year, 5 months ago
config: make ARCH=parisc allyesconfig

All error/warnings:

   In file included from lib/mpi/generic_mpih-mul1.c:30:0:
   lib/mpi/longlong.h:355:1: warning: function declaration isn't a prototype [-Wstrict-prototypes]
   lib/mpi/generic_mpih-mul1.c: In function 'mpihelp_mul_1':
>> lib/mpi/generic_mpih-mul1.c:50:3: error: inconsistent operand constraints in an 'asm'
--
   In file included from lib/mpi/generic_mpih-mul2.c:30:0:
   lib/mpi/longlong.h:355:1: warning: function declaration isn't a prototype [-Wstrict-prototypes]
   lib/mpi/generic_mpih-mul2.c: In function 'mpihelp_addmul_1':
>> lib/mpi/generic_mpih-mul2.c:49:3: error: inconsistent operand constraints in an 'asm'
--
   In file included from lib/mpi/generic_mpih-mul3.c:30:0:
   lib/mpi/longlong.h:355:1: warning: function declaration isn't a prototype [-Wstrict-prototypes]
   lib/mpi/generic_mpih-mul3.c: In function 'mpihelp_submul_1':
>> lib/mpi/generic_mpih-mul3.c:49:3: error: inconsistent operand constraints in an 'asm'
--
   In file included from lib/mpi/mpih-div.c:31:0:
   lib/mpi/longlong.h:355:1: warning: function declaration isn't a prototype [-Wstrict-prototypes]
   lib/mpi/mpih-div.c: In function 'mpihelp_mod_1':
>> lib/mpi/mpih-div.c:97:5: error: inconsistent operand constraints in an 'asm'
>> lib/mpi/mpih-div.c:97:5: error: inconsistent operand constraints in an 'asm'
>> lib/mpi/mpih-div.c:106:4: error: inconsistent operand constraints in an 'asm'
>> lib/mpi/mpih-div.c:106:4: error: inconsistent operand constraints in an 'asm'
>> lib/mpi/mpih-div.c:135:5: error: inconsistent operand constraints in an 'asm'
>> lib/mpi/mpih-div.c:135:5: error: inconsistent operand constraints in an 'asm'

vim +/asm +50 lib/mpi/generic_mpih-mul1.c

cdec9cb5 Dmitry Kasatkin 2011-08-31  34  	      mpi_limb_t s2_limb)
cdec9cb5 Dmitry Kasatkin 2011-08-31  35  {
cdec9cb5 Dmitry Kasatkin 2011-08-31  36  	mpi_limb_t cy_limb;
cdec9cb5 Dmitry Kasatkin 2011-08-31  37  	mpi_size_t j;
cdec9cb5 Dmitry Kasatkin 2011-08-31  38  	mpi_limb_t prod_high, prod_low;
cdec9cb5 Dmitry Kasatkin 2011-08-31  39  
cdec9cb5 Dmitry Kasatkin 2011-08-31  40  	/* The loop counter and index J goes from -S1_SIZE to -1.  This way
cdec9cb5 Dmitry Kasatkin 2011-08-31  41  	 * the loop becomes faster.  */
cdec9cb5 Dmitry Kasatkin 2011-08-31  42  	j = -s1_size;
cdec9cb5 Dmitry Kasatkin 2011-08-31  43  
cdec9cb5 Dmitry Kasatkin 2011-08-31  44  	/* Offset the base pointers to compensate for the negative indices.  */
cdec9cb5 Dmitry Kasatkin 2011-08-31  45  	s1_ptr -= j;
cdec9cb5 Dmitry Kasatkin 2011-08-31  46  	res_ptr -= j;
cdec9cb5 Dmitry Kasatkin 2011-08-31  47  
cdec9cb5 Dmitry Kasatkin 2011-08-31  48  	cy_limb = 0;
cdec9cb5 Dmitry Kasatkin 2011-08-31  49  	do {
cdec9cb5 Dmitry Kasatkin 2011-08-31 @50  		umul_ppmm(prod_high, prod_low, s1_ptr[j], s2_limb);
cdec9cb5 Dmitry Kasatkin 2011-08-31  51  		prod_low += cy_limb;
cdec9cb5 Dmitry Kasatkin 2011-08-31  52  		cy_limb = (prod_low < cy_limb ? 1 : 0) + prod_high;
cdec9cb5 Dmitry Kasatkin 2011-08-31  53  		res_ptr[j] = prod_low;
cdec9cb5 Dmitry Kasatkin 2011-08-31  54  	} while (++j);
cdec9cb5 Dmitry Kasatkin 2011-08-31  55  
cdec9cb5 Dmitry Kasatkin 2011-08-31  56  	return cy_limb;
cdec9cb5 Dmitry Kasatkin 2011-08-31  57  }



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From: Rusty Russell <rusty@rustcorp.com.au>
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Sebastian Wankerl <sisewank@cip.cs.fau.de> writes:
> On 04/04/13 03:00, Rusty Russell wrote:
>> Sebastian Wankerl <sisewank@cip.cs.fau.de> writes:
>>> Add non-zero module sections to sysfs on architectures unequal to PARISC.
>>> KGDB needs all module sections for proper module debugging. Therefore, commit 
>>> 35dead4235e2b67da7275b4122fed37099c2f462 is revoked except for PARISC
>>> architecture.
>> #ifdef CONFIG_PARISC in the middle of kernel/module.c is super-ugly, and
>> wrong.
>
> I don't see why this is wrong. It used to load all sections to sysfs
> until the patch mentioned. Actually, it is the PARISC build chain which
> is broken.

Exactly.  Don't workaround it here, revert it and put the
duplicate-section-name fixup in parisc where it belongs.

Assuming parisc still produces these dup sections: that patch is 4 years
old now.

Untested:

diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 2a625fb..28d32a2 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -341,6 +341,11 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
 			    ".PARISC.unwind", 14) == 0)
 			me->arch.unwind_section = i;
 
+		/* we produce multiple, empty .text sections, and kallsyms
+		 * gets upset.  make non-alloc so it doesn't see them. */
+		if (sechdrs[i].sh_size == 0)
+			sechdrs[i].sh_flags &= ~SHF_ALLOC;
+
 		if (sechdrs[i].sh_type != SHT_RELA)
 			continue;
 
>> My preference would be to fix kgdb.  If the section is empty, what need
>> does it have to examine it?
>
> GDB needs to know all sections of the binary and its addresses.

Why?  Does something refer to this empty section?  Why has noone noticed
this since 2009?

> It is generally useful to be able to check up all sections of the binary
> regardless if they are empty or not so one can see the binary's
> structure.

A zero-length section doesn't change the binary's structure.  You don't
see non-SHF_ALLOC sections either.

Cheers,
Rusty.
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On Fri, 2013-04-05 at 14:30 +1030, Rusty Russell wrote:
> Sebastian Wankerl <sisewank@cip.cs.fau.de> writes:
> > On 04/04/13 03:00, Rusty Russell wrote:
> >> Sebastian Wankerl <sisewank@cip.cs.fau.de> writes:
> >>> Add non-zero module sections to sysfs on architectures unequal to PARISC.
> >>> KGDB needs all module sections for proper module debugging. Therefore, commit 
> >>> 35dead4235e2b67da7275b4122fed37099c2f462 is revoked except for PARISC
> >>> architecture.

Thanks for actually cc'ing us.

> >> #ifdef CONFIG_PARISC in the middle of kernel/module.c is super-ugly, and
> >> wrong.
> >
> > I don't see why this is wrong. It used to load all sections to sysfs
> > until the patch mentioned. Actually, it is the PARISC build chain which
> > is broken.
> 
> Exactly.  Don't workaround it here, revert it and put the
> duplicate-section-name fixup in parisc where it belongs.
> 
> Assuming parisc still produces these dup sections: that patch is 4 years
> old now.

Just so you know: this isn't a parisc specific problem.  Gcc produces
duplicate section names under various circumstances, but the one that
bites us is -ffunction-sections.  Note that there are proposals to use
-ffunction-sections on all architectures (so we can garbage collect
unused functions) in which case you'll induce the bug identified in
35dead4235e2b67da7275b4122fed37099c2f462 on every architecture

The problem is our assumption that section names be unique.  This
assumption is wrong.  The ELF spec says (version 1.1 page 1-15): "An
object file may have more than one section with the same name."  We need
to fix the kernel not to rely on a bogus assumption ... but we had no
idea how to do that in a way that preserved the backwards compatibility
of sections subdirectory.

I admit that 35dead4235e2b67da7275b4122fed37099c2f462 is a hack, but now
the problem has got attention, can we fix it properly?

James


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On 04/05/13 06:00, Rusty Russell wrote:
> Exactly.  Don't workaround it here, revert it and put the
> duplicate-section-name fixup in parisc where it belongs.
>
> Assuming parisc still produces these dup sections: that patch is 4 years
> old now.
>
> Untested:
>
> diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
> index 2a625fb..28d32a2 100644
> --- a/arch/parisc/kernel/module.c
> +++ b/arch/parisc/kernel/module.c
> @@ -341,6 +341,11 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
>  			    ".PARISC.unwind", 14) == 0)
>  			me->arch.unwind_section = i;
>  
> +		/* we produce multiple, empty .text sections, and kallsyms
> +		 * gets upset.  make non-alloc so it doesn't see them. */
> +		if (sechdrs[i].sh_size == 0)
> +			sechdrs[i].sh_flags &= ~SHF_ALLOC;
> +
>  		if (sechdrs[i].sh_type != SHT_RELA)
>  			continue;
We just worked your suggested patch in.

> Why?  Does something refer to this empty section?  Why has noone noticed
> this since 2009?

GDB wants to know all section with attribute ALLOC, regardless whether
they are empty or not. Thus, it is useful if all of them appear in sysfs.
> A zero-length section doesn't change the binary's structure.  You don't
> see non-SHF_ALLOC sections either.

Yes, but they do occupy an index in the section headers of the binary.
GDB needs to know all of them in the right order.
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] Add non-zero module sections to sysfs
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On 6-Apr-13, at 6:52 AM, James Bottomley wrote:

> On Sat, 2013-04-06 at 15:22 +1030, Rusty Russell wrote:
>>> The problem is our assumption that section names be unique.  This
>>> assumption is wrong.  The ELF spec says (version 1.1 page 1-15): "An
>>> object file may have more than one section with the same name."   
>>> We need
>>> to fix the kernel not to rely on a bogus assumption ... but we had  
>>> no
>>> idea how to do that in a way that preserved the backwards  
>>> compatibility
>>> of sections subdirectory.
>>>
>>> I admit that 35dead4235e2b67da7275b4122fed37099c2f462 is a hack,  
>>> but now
>>> the problem has got attention, can we fix it properly?
>>
>> Yep.  The original patch didn't go through me, or we would have had  
>> this
>> discussion back then...
>>
>> The use of section names in sysfs goes back to one Mr. Corbet.  Why  
>> did
>> he do it that way?  Because gdb's add-symbol-file makes the same
>> assumption.  So if we fixed the sysfs somehow, it still wouldn't be
>> useful, since there's no way to tell gdb :(
>>
>> The real answer don't use -ffunction-sections on modules: probably  
>> not
>> as important as the rest of the kernel.  And the new shiny is
>> -flto anyway.
>>
>> And that leaves us with a PA-RISC specific issue, for which we should
>> move the fix to PA-RISC.
>>
>> Thoughts?
>
> Well, we don't have much of a choice.  Our ELF stub jump on 32 bits  
> is a
> PCREL17.  That means once a module size is over 128k there's a  
> chance we
> might not be able to link it because the jump is too big for the
> instruction.  IPV6 is one such big module today, but I'm sure there  
> are
> others.  The only way I know to fix this is to allow the linker to
> insert stubs between functions, so we only fail at linking if a single
> function is >128k big.  The way to do this is -ffunction-sections,
> unless there's something else we could do (all we really need is a way
> to ensure we can insert ELF stubs every 128k).

There is now a config work around for this.  See:
http://www.spinics.net/lists/linux-parisc/msg04521.html

Dave
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From - Thu Nov 08 21:09:03 2018
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From: Jiang Liu <liuj97@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH v4, part3 30/41] mm/PARISC: prepare for removing num_physpages and simplify mem_init()
Date: Sat,  6 Apr 2013 22:32:29 +0800
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Cc: Jiang Liu <jiang.liu@huawei.com>,
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	Mel Gorman <mgorman@suse.de>, Minchan Kim <minchan@kernel.org>,
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Prepare for removing num_physpages and simplify mem_init().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: linux-parisc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 arch/parisc/mm/init.c |   46 +++-------------------------------------------
 1 file changed, 3 insertions(+), 43 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1fe9d841..f80c175 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -214,7 +214,6 @@ static void __init setup_bootmem(void)
 	mem_limit_func();       /* check for "mem=" argument */
 
 	mem_max = 0;
-	num_physpages = 0;
 	for (i = 0; i < npmem_ranges; i++) {
 		unsigned long rsize;
 
@@ -229,10 +228,8 @@ static void __init setup_bootmem(void)
 				npmem_ranges = i + 1;
 				mem_max = mem_limit;
 			}
-	        num_physpages += pmem_ranges[i].pages;
 			break;
 		}
-	    num_physpages += pmem_ranges[i].pages;
 		mem_max += rsize;
 	}
 
@@ -532,7 +529,7 @@ void free_initmem(void)
 	 * pages are no-longer executable */
 	flush_icache_range(init_begin, init_end);
 	
-	num_physpages += free_initmem_default(-1);
+	free_initmem_default(-1);
 
 	/* set up a new led state on systems shipped LED State panel */
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE);
@@ -580,8 +577,6 @@ unsigned long pcxl_dma_start __read_mostly;
 
 void __init mem_init(void)
 {
-	int codesize, reservedpages, datasize, initsize;
-
 	/* Do sanity checks on page table constants */
 	BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
 	BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));
@@ -603,33 +598,6 @@ void __init mem_init(void)
 	}
 #endif
 
-	codesize = (unsigned long)_etext - (unsigned long)_text;
-	datasize = (unsigned long)_edata - (unsigned long)_etext;
-	initsize = (unsigned long)__init_end - (unsigned long)__init_begin;
-
-	reservedpages = 0;
-{
-	unsigned long pfn;
-#ifdef CONFIG_DISCONTIGMEM
-	int i;
-
-	for (i = 0; i < npmem_ranges; i++) {
-		for (pfn = node_start_pfn(i); pfn < node_end_pfn(i); pfn++) {
-			if (PageReserved(pfn_to_page(pfn)))
-				reservedpages++;
-		}
-	}
-#else /* !CONFIG_DISCONTIGMEM */
-	for (pfn = 0; pfn < max_pfn; pfn++) {
-		/*
-		 * Only count reserved RAM pages
-		 */
-		if (PageReserved(pfn_to_page(pfn)))
-			reservedpages++;
-	}
-#endif
-}
-
 #ifdef CONFIG_PA11
 	if (hppa_dma_ops == &pcxl_dma_ops) {
 		pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
@@ -643,15 +611,7 @@ void __init mem_init(void)
 	parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
 #endif
 
-	printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n",
-		nr_free_pages() << (PAGE_SHIFT-10),
-		num_physpages << (PAGE_SHIFT-10),
-		codesize >> 10,
-		reservedpages << (PAGE_SHIFT-10),
-		datasize >> 10,
-		initsize >> 10
-	);

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Hello.

On Fri, Apr 05, 2013 at 12:07:15PM +0200, James Bottomley wrote:
> Just so you know: this isn't a parisc specific problem.  Gcc produces
> duplicate section names under various circumstances, but the one that
> bites us is -ffunction-sections.  Note that there are proposals to use
> -ffunction-sections on all architectures (so we can garbage collect
> unused functions) in which case you'll induce the bug identified in
> 35dead4235e2b67da7275b4122fed37099c2f462 on every architecture

I am not able to produce an object file with duplicate section names
using gcc on x86. Even with -ffunction-sections, every section gets a
unique name. Is this architecture-specific behaviour of gcc?

Greetings,
Philip

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From - Thu Nov 08 21:09:03 2018
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From: Rusty Russell <rusty@rustcorp.com.au>
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Subject: Re: [PATCH] Add non-zero module sections to sysfs
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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James Bottomley <James.Bottomley@HansenPartnership.com> writes:
> On Fri, 2013-04-05 at 14:30 +1030, Rusty Russell wrote:
>> Sebastian Wankerl <sisewank@cip.cs.fau.de> writes:
>> > On 04/04/13 03:00, Rusty Russell wrote:
>> >> Sebastian Wankerl <sisewank@cip.cs.fau.de> writes:
>> >>> Add non-zero module sections to sysfs on architectures unequal to PARISC.
>> >>> KGDB needs all module sections for proper module debugging. Therefore, commit 
>> >>> 35dead4235e2b67da7275b4122fed37099c2f462 is revoked except for PARISC
>> >>> architecture.
>
> Thanks for actually cc'ing us.
>
>> >> #ifdef CONFIG_PARISC in the middle of kernel/module.c is super-ugly, and
>> >> wrong.
>> >
>> > I don't see why this is wrong. It used to load all sections to sysfs
>> > until the patch mentioned. Actually, it is the PARISC build chain which
>> > is broken.
>> 
>> Exactly.  Don't workaround it here, revert it and put the
>> duplicate-section-name fixup in parisc where it belongs.
>> 
>> Assuming parisc still produces these dup sections: that patch is 4 years
>> old now.
>
> Just so you know: this isn't a parisc specific problem.  Gcc produces
> duplicate section names under various circumstances, but the one that
> bites us is -ffunction-sections.

*This* is a PA-RISC specific issue.  -ffunction-sections is a different
problem, which this hack wouldn't help.

> Note that there are proposals to use
> -ffunction-sections on all architectures (so we can garbage collect
> unused functions) in which case you'll induce the bug identified in
> 35dead4235e2b67da7275b4122fed37099c2f462 on every architecture

Good point, though I note that we seem to have stalled on
-ffunction-sections.  (And I vaguely recall an issue with
-ffunction-sections and using ld -o which would fold duplicate named
sections back together reducing elimination opportunities).

> The problem is our assumption that section names be unique.  This
> assumption is wrong.  The ELF spec says (version 1.1 page 1-15): "An
> object file may have more than one section with the same name."  We need
> to fix the kernel not to rely on a bogus assumption ... but we had no
> idea how to do that in a way that preserved the backwards compatibility
> of sections subdirectory.
>
> I admit that 35dead4235e2b67da7275b4122fed37099c2f462 is a hack, but now
> the problem has got attention, can we fix it properly?

Yep.  The original patch didn't go through me, or we would have had this
discussion back then...

The use of section names in sysfs goes back to one Mr. Corbet.  Why did
he do it that way?  Because gdb's add-symbol-file makes the same
assumption.  So if we fixed the sysfs somehow, it still wouldn't be
useful, since there's no way to tell gdb :(

The real answer don't use -ffunction-sections on modules: probably not
as important as the rest of the kernel.  And the new shiny is
-flto anyway.

And that leaves us with a PA-RISC specific issue, for which we should
move the fix to PA-RISC.

Thoughts?
Rusty.

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH] Add non-zero module sections to sysfs
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On Sat, 2013-04-06 at 15:22 +1030, Rusty Russell wrote:
> > The problem is our assumption that section names be unique.  This
> > assumption is wrong.  The ELF spec says (version 1.1 page 1-15): "An
> > object file may have more than one section with the same name."  We need
> > to fix the kernel not to rely on a bogus assumption ... but we had no
> > idea how to do that in a way that preserved the backwards compatibility
> > of sections subdirectory.
> >
> > I admit that 35dead4235e2b67da7275b4122fed37099c2f462 is a hack, but now
> > the problem has got attention, can we fix it properly?
> 
> Yep.  The original patch didn't go through me, or we would have had this
> discussion back then...
>
> The use of section names in sysfs goes back to one Mr. Corbet.  Why did
> he do it that way?  Because gdb's add-symbol-file makes the same
> assumption.  So if we fixed the sysfs somehow, it still wouldn't be
> useful, since there's no way to tell gdb :(
> 
> The real answer don't use -ffunction-sections on modules: probably not
> as important as the rest of the kernel.  And the new shiny is
> -flto anyway.
> 
> And that leaves us with a PA-RISC specific issue, for which we should
> move the fix to PA-RISC.
> 
> Thoughts?

Well, we don't have much of a choice.  Our ELF stub jump on 32 bits is a
PCREL17.  That means once a module size is over 128k there's a chance we
might not be able to link it because the jump is too big for the
instruction.  IPV6 is one such big module today, but I'm sure there are
others.  The only way I know to fix this is to allow the linker to
insert stubs between functions, so we only fail at linking if a single
function is >128k big.  The way to do this is -ffunction-sections,
unless there's something else we could do (all we really need is a way
to ensure we can insert ELF stubs every 128k).

We're not the only architecture that has these problems: frv, metag and
score seem to as well.

James


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From - Thu Nov 08 21:09:03 2018
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From: James Bottomley <James.bottomley@HansenPartnership.com>
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To: John David Anglin <dave.anglin@bell.net>
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John David Anglin <dave.anglin@bell.net> wrote:

>On 6-Apr-13, at 6:52 AM, James Bottomley wrote:
>
>> On Sat, 2013-04-06 at 15:22 +1030, Rusty Russell wrote:
>>>> The problem is our assumption that section names be unique.  This
>>>> assumption is wrong.  The ELF spec says (version 1.1 page 1-15):
>"An
>>>> object file may have more than one section with the same name."   
>>>> We need
>>>> to fix the kernel not to rely on a bogus assumption ... but we had 
>
>>>> no
>>>> idea how to do that in a way that preserved the backwards  
>>>> compatibility
>>>> of sections subdirectory.
>>>>
>>>> I admit that 35dead4235e2b67da7275b4122fed37099c2f462 is a hack,  
>>>> but now
>>>> the problem has got attention, can we fix it properly?
>>>
>>> Yep.  The original patch didn't go through me, or we would have had 
>
>>> this
>>> discussion back then...
>>>
>>> The use of section names in sysfs goes back to one Mr. Corbet.  Why 
>
>>> did
>>> he do it that way?  Because gdb's add-symbol-file makes the same
>>> assumption.  So if we fixed the sysfs somehow, it still wouldn't be
>>> useful, since there's no way to tell gdb :(
>>>
>>> The real answer don't use -ffunction-sections on modules: probably  
>>> not
>>> as important as the rest of the kernel.  And the new shiny is
>>> -flto anyway.
>>>
>>> And that leaves us with a PA-RISC specific issue, for which we
>should
>>> move the fix to PA-RISC.
>>>
>>> Thoughts?
>>
>> Well, we don't have much of a choice.  Our ELF stub jump on 32 bits  
>> is a
>> PCREL17.  That means once a module size is over 128k there's a  
>> chance we
>> might not be able to link it because the jump is too big for the
>> instruction.  IPV6 is one such big module today, but I'm sure there  
>> are
>> others.  The only way I know to fix this is to allow the linker to
>> insert stubs between functions, so we only fail at linking if a
>single
>> function is >128k big.  The way to do this is -ffunction-sections,
>> unless there's something else we could do (all we really need is a
>way
>> to ensure we can insert ELF stubs every 128k).
>
>There is now a config work around for this.  See:
>http://www.spinics.net/lists/linux-parisc/msg04521.html

The longcalls config option only works on pa2 doesn't it? Although we could just deprecate pa1.

James
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To: James Bottomley <James.bottomley@HansenPartnership.com>
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On 6-Apr-13, at 9:22 PM, James Bottomley wrote:

>
>
> John David Anglin <dave.anglin@bell.net> wrote:
>
>> On 6-Apr-13, at 6:52 AM, James Bottomley wrote:
>>
>>> On Sat, 2013-04-06 at 15:22 +1030, Rusty Russell wrote:
>>>>> The problem is our assumption that section names be unique.  This
>>>>> assumption is wrong.  The ELF spec says (version 1.1 page 1-15):
>> "An
>>>>> object file may have more than one section with the same name."
>>>>> We need
>>>>> to fix the kernel not to rely on a bogus assumption ... but we had
>>
>>>>> no
>>>>> idea how to do that in a way that preserved the backwards
>>>>> compatibility
>>>>> of sections subdirectory.
>>>>>
>>>>> I admit that 35dead4235e2b67da7275b4122fed37099c2f462 is a hack,
>>>>> but now
>>>>> the problem has got attention, can we fix it properly?
>>>>
>>>> Yep.  The original patch didn't go through me, or we would have had
>>
>>>> this
>>>> discussion back then...
>>>>
>>>> The use of section names in sysfs goes back to one Mr. Corbet.  Why
>>
>>>> did
>>>> he do it that way?  Because gdb's add-symbol-file makes the same
>>>> assumption.  So if we fixed the sysfs somehow, it still wouldn't be
>>>> useful, since there's no way to tell gdb :(
>>>>
>>>> The real answer don't use -ffunction-sections on modules: probably
>>>> not
>>>> as important as the rest of the kernel.  And the new shiny is
>>>> -flto anyway.
>>>>
>>>> And that leaves us with a PA-RISC specific issue, for which we
>> should
>>>> move the fix to PA-RISC.
>>>>
>>>> Thoughts?
>>>
>>> Well, we don't have much of a choice.  Our ELF stub jump on 32 bits
>>> is a
>>> PCREL17.  That means once a module size is over 128k there's a
>>> chance we
>>> might not be able to link it because the jump is too big for the
>>> instruction.  IPV6 is one such big module today, but I'm sure there
>>> are
>>> others.  The only way I know to fix this is to allow the linker to
>>> insert stubs between functions, so we only fail at linking if a
>> single
>>> function is >128k big.  The way to do this is -ffunction-sections,
>>> unless there's something else we could do (all we really need is a
>> way
>>> to ensure we can insert ELF stubs every 128k).
>>
>> There is now a config work around for this.  See:
>> http://www.spinics.net/lists/linux-parisc/msg04521.html
>
> The longcalls config option only works on pa2 doesn't it? Although  
> we could just deprecate pa1.


No, it works on pa1.1 but the calls are more efficient on pa2.  On  
linux with a flat space, they should be
about the same in terms of instruction count.  On HP-UX, an additional  
space register load is needed.
For calls within the same space, the be instruction is pretty  
efficient but we never implemented linker
support for it in binutils.  If I recall correctly, it works if the  
call is local to a module but not for global calls.
It does work in HP-UX.

Dave
--
John David Anglin	dave.anglin@bell.net



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[Adding a few people to CC who may be able to help with Mike's doubts
on PA-RISC; folks, if any of you could have a quick look at the parisc
piece below, that would be helpful]

Mike,

On Wed, Apr 3, 2013 at 1:17 AM, Mike Frysinger <vapier@gentoo.org> wrote:
> On Tuesday 02 April 2013 02:54:39 Michael Kerrisk (man-pages) wrote:
>> On Mon, Apr 1, 2013 at 12:32 PM, Mike Frysinger wrote:
>> > On Monday 01 April 2013 05:29:11 Michael Kerrisk (man-pages) wrote:
>> >> On Mon, Apr 1, 2013 at 10:29 AM, Mike Frysinger wrote:
>> >> > on a related topic, would it be useful to document the exact calling
>> >> > convention for architecture system calls ?  from time to time, i need
>> >> > to reference this, and i inevitably turn to a variety of sources to
>> >> > dig up the answer (the kernel itself, or strace, or qemu, or glibc,
>> >> > or uClibc, or lss, or other random places).  i would find it handy to
>> >> > have all of these in a single location.
>> >>
>> >> Sounds like it would be useful to have that documented. Would you have
>> >> a chance to write patches for that?
>> >
>> > should we do it in syscall(2) ?  or a dedicated man page ?
>>
>> It's a little hard to say until I see the shape of what comes. Can you
>> provide a rough per-syscall example or two of what you expect to
>> document? (Don't write too concrete a patch yet, until I can get a
>> handle on what you intend.)
>
> this renders nicely i think.  it shows most of the stuff i'm interested in.
> might be useful to add a dedicated section covering the clobbers in the
> future.

Thanks for that. It looks good to me, and I have applied. But it
renders too wide (wherever possible, I try to ensure that everything
renders inside 80 columns), so I have split into tables, one with
"instruction, NR, ret" and another with the arguments (arg1 to arg7).

Now, just to make 100% sure of your intention, the NR column would be
better named "syscall #" (or similar), right? (I've made that change.)

> --- a/man2/syscall.2
> +++ b/man2/syscall.2
> @@ -79,6 +79,35 @@ and an error code is stored in
>  .BR syscall ()
>  first appeared in
>  4BSD.
> +.SS Architecture calling conventions
> +Every architecture has its own way of invoking & passing arguments to the
> +kernel.
> +Note that the instruction listed below might not be the fastest or best way to
> +transition to the kernel, so you might have to refer to the VDSO.

Mike, any chance that I could interest you in writing a vdso(7) man
page? I've felt the lack of such a page for a while (it need not be
too long), but am not deep enough into the details to write it easily
(I am not sure if you are).

> +Also note that this doesn't cover the entire calling convention -- some
> +architectures may indiscriminately clobber other registers not listed here.
> +.if t \{\
> +.ft CW
> +\}
> +.TS
> +l l l l l l l l l l l.
> +arch/ABI       insn    NR      ret     arg1    arg2    arg3    arg4    arg5    arg6    arg7
> +_
> +arm/OABI       swi NR; -       a1      a1      a2      a3      a4      v1      v2      v3
> +arm/EABI       swi 0x0;        r7      r1      r1      r2      r3      r4      r5      r6      r7
> +bfin   excpt 0x0;      P0      R0      R0      R1      R2      R3      R4      R5      -
> +i386   int $0x80;      eax     eax     ebx     ecx     edx     esi     edi     ebp     -
> +ia64   break 0x100000; r15     r10/r8  r11     r9      r10     r14     r15     r13     -
> +.\" not sure about insn or NR
> +.\" parisc     ble 0x100(%%sr2, %%r0); -       r28     r26     r25     r24     r23     r22     r21     -

PA-RISC folks, are you able to confirm/correct the above?

> +sparc/32       t 0x10; g1      o0      o0      o1      o2      o3      o4      o5      -
> +sparc/64       t 0x6d; g1      o0      o0      o1      o2      o3      o4      o5      -
> +x86_64 syscall;        rax     rax     rdi     rsi     rdx     r10     r8      r9      -
> +.TE
> +.if t \{\
> +.in
> +.ft P
> +\}
>  .SS Architecture-specific requirements
>  Each architecture ABI has its own requirements on how
>  system call arguments are passed to the kernel.

Cheers,

Michael

--
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Author of "The Linux Programming Interface"; http://man7.org/tlpi/
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On Sun, Apr 07, 2013 at 12:00:50PM +0200, Michael Kerrisk (man-pages) wrote:
> [Adding a few people to CC who may be able to help with Mike's doubts
> on PA-RISC; folks, if any of you could have a quick look at the parisc
> piece below, that would be helpful]
> 

The syscall number is in %r20, everything else looks correct. The
returned value is in %r28 and the args are %r26 through %r21.

--Kyle

> Mike,
> 
> On Wed, Apr 3, 2013 at 1:17 AM, Mike Frysinger <vapier@gentoo.org> wrote:
> > On Tuesday 02 April 2013 02:54:39 Michael Kerrisk (man-pages) wrote:
> >> On Mon, Apr 1, 2013 at 12:32 PM, Mike Frysinger wrote:
> >> > On Monday 01 April 2013 05:29:11 Michael Kerrisk (man-pages) wrote:
> >> >> On Mon, Apr 1, 2013 at 10:29 AM, Mike Frysinger wrote:
> >> >> > on a related topic, would it be useful to document the exact calling
> >> >> > convention for architecture system calls ?  from time to time, i need
> >> >> > to reference this, and i inevitably turn to a variety of sources to
> >> >> > dig up the answer (the kernel itself, or strace, or qemu, or glibc,
> >> >> > or uClibc, or lss, or other random places).  i would find it handy to
> >> >> > have all of these in a single location.
> >> >>
> >> >> Sounds like it would be useful to have that documented. Would you have
> >> >> a chance to write patches for that?
> >> >
> >> > should we do it in syscall(2) ?  or a dedicated man page ?
> >>
> >> It's a little hard to say until I see the shape of what comes. Can you
> >> provide a rough per-syscall example or two of what you expect to
> >> document? (Don't write too concrete a patch yet, until I can get a
> >> handle on what you intend.)
> >
> > this renders nicely i think.  it shows most of the stuff i'm interested in.
> > might be useful to add a dedicated section covering the clobbers in the
> > future.
> 
> Thanks for that. It looks good to me, and I have applied. But it
> renders too wide (wherever possible, I try to ensure that everything
> renders inside 80 columns), so I have split into tables, one with
> "instruction, NR, ret" and another with the arguments (arg1 to arg7).
> 
> Now, just to make 100% sure of your intention, the NR column would be
> better named "syscall #" (or similar), right? (I've made that change.)
> 
> > --- a/man2/syscall.2
> > +++ b/man2/syscall.2
> > @@ -79,6 +79,35 @@ and an error code is stored in
> >  .BR syscall ()
> >  first appeared in
> >  4BSD.
> > +.SS Architecture calling conventions
> > +Every architecture has its own way of invoking & passing arguments to the
> > +kernel.
> > +Note that the instruction listed below might not be the fastest or best way to
> > +transition to the kernel, so you might have to refer to the VDSO.
> 
> Mike, any chance that I could interest you in writing a vdso(7) man
> page? I've felt the lack of such a page for a while (it need not be
> too long), but am not deep enough into the details to write it easily
> (I am not sure if you are).
> 
> > +Also note that this doesn't cover the entire calling convention -- some
> > +architectures may indiscriminately clobber other registers not listed here.
> > +.if t \{\
> > +.ft CW
> > +\}
> > +.TS
> > +l l l l l l l l l l l.
> > +arch/ABI       insn    NR      ret     arg1    arg2    arg3    arg4    arg5    arg6    arg7
> > +_
> > +arm/OABI       swi NR; -       a1      a1      a2      a3      a4      v1      v2      v3
> > +arm/EABI       swi 0x0;        r7      r1      r1      r2      r3      r4      r5      r6      r7
> > +bfin   excpt 0x0;      P0      R0      R0      R1      R2      R3      R4      R5      -
> > +i386   int $0x80;      eax     eax     ebx     ecx     edx     esi     edi     ebp     -
> > +ia64   break 0x100000; r15     r10/r8  r11     r9      r10     r14     r15     r13     -
> > +.\" not sure about insn or NR
> > +.\" parisc     ble 0x100(%%sr2, %%r0); -       r28     r26     r25     r24     r23     r22     r21     -
> 
> PA-RISC folks, are you able to confirm/correct the above?
> 
> > +sparc/32       t 0x10; g1      o0      o0      o1      o2      o3      o4      o5      -
> > +sparc/64       t 0x6d; g1      o0      o0      o1      o2      o3      o4      o5      -
> > +x86_64 syscall;        rax     rax     rdi     rsi     rdx     r10     r8      r9      -
> > +.TE
> > +.if t \{\
> > +.in
> > +.ft P
> > +\}
> >  .SS Architecture-specific requirements
> >  Each architecture ABI has its own requirements on how
> >  system call arguments are passed to the kernel.
> 
> Cheers,
> 
> Michael
> 
> --
> Michael Kerrisk
> Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
> Author of "The Linux Programming Interface"; http://man7.org/tlpi/
> 
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On Sun, 2013-04-07 at 09:55 -0400, Kyle McMartin wrote:
> On Sun, Apr 07, 2013 at 12:00:50PM +0200, Michael Kerrisk (man-pages) wrote:
> > [Adding a few people to CC who may be able to help with Mike's doubts
> > on PA-RISC; folks, if any of you could have a quick look at the parisc
> > piece below, that would be helpful]
> > 
> 
> The syscall number is in %r20, everything else looks correct. The
> returned value is in %r28 and the args are %r26 through %r21.

Actually, that's not quite correct.  on 64 bits it's arg1-8 are %r26-%
r19 but on 32 the convention is that arg1-arg4 are %r26-%r23 and the
rest on stack.  We can also do register pair combining on 32 bits for a
64 bit argument.

Our register use is documented in 

Documentation/parisc/registers

James


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On Sun, Apr 07, 2013 at 07:56:49AM -0700, James Bottomley wrote:
> Actually, that's not quite correct.  on 64 bits it's arg1-8 are %r26-%
> r19 but on 32 the convention is that arg1-arg4 are %r26-%r23 and the
> rest on stack.  We can also do register pair combining on 32 bits for a
> 64 bit argument.

I guess the confusion is whether you're writing this from the kernel
side or the userspace side. The syscall instruction is called with six
arg registers, but we fix it on entry to the kernel when we call into C.
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On Sun, 2013-04-07 at 11:11 -0400, Kyle McMartin wrote:
> On Sun, Apr 07, 2013 at 07:56:49AM -0700, James Bottomley wrote:
> > Actually, that's not quite correct.  on 64 bits it's arg1-8 are %r26-%
> > r19 but on 32 the convention is that arg1-arg4 are %r26-%r23 and the
> > rest on stack.  We can also do register pair combining on 32 bits for a
> > 64 bit argument.
> 
> I guess the confusion is whether you're writing this from the kernel
> side or the userspace side. The syscall instruction is called with six
> arg registers, but we fix it on entry to the kernel when we call into C.

Oh, right, syscall arguments, sorry didn't manage to extract the content
from all the quotes.  I was just thinking general ABI.

The syscall arguments are all in

arch/parisc/include/asm/unistd.h

As Kyle says, we override the calling convention and define in-register
arguments even on 32 bit (so %r26-%r21).  We actually don't define
_syscall6() yet, but we're ready for it.

James


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On Sunday 07 April 2013 09:55:14 Kyle McMartin wrote:
> On Sun, Apr 07, 2013 at 12:00:50PM +0200, Michael Kerrisk (man-pages) wro=
te:
> > [Adding a few people to CC who may be able to help with Mike's doubts
> > on PA-RISC; folks, if any of you could have a quick look at the parisc
> > piece below, that would be helpful]
>=20
> The syscall number is in %r20, everything else looks correct. The
> returned value is in %r28 and the args are %r26 through %r21.

just to be clear, the only insn you need is:
	ble 0x100(%sr2, %r0);

the kernel docs say sr2 holds the kernel gateway page (so i guess 0x100 is =
a=20
known offset into that).  the docs don't mention r0 that i can see, so i'm=
=20
guessing it's one of those "always 0" registers ?

the sysdep code has an ldi call in the branch delay slot (i think), but all=
=20
that seems to do is load r20 with the syscall nr.
=2Dmike

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On 7-Apr-13, at 2:39 PM, Mike Frysinger wrote:

> just to be clear, the only insn you need is:
> 	ble 0x100(%sr2, %r0);
>
> the kernel docs say sr2 holds the kernel gateway page (so i guess  
> 0x100 is a
> known offset into that).  the docs don't mention r0 that i can see,  
> so i'm
> guessing it's one of those "always 0" registers ?

Yes.  There is also an entry at offset 0xb0 for light-weight- 
syscalls.  Currently,
this implements an atomic CAS operation used for pthread support.

Dave
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From: Rusty Russell <rusty@rustcorp.com.au>
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Cc: Sebastian Wankerl <sisewank@cip.cs.fau.de>,
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Philip Kranz <philip.kranz@googlemail.com> writes:
> Hello.
>
> On Fri, Apr 05, 2013 at 12:07:15PM +0200, James Bottomley wrote:
>> Just so you know: this isn't a parisc specific problem.  Gcc produces
>> duplicate section names under various circumstances, but the one that
>> bites us is -ffunction-sections.  Note that there are proposals to use
>> -ffunction-sections on all architectures (so we can garbage collect
>> unused functions) in which case you'll induce the bug identified in
>> 35dead4235e2b67da7275b4122fed37099c2f462 on every architecture
>
> I am not able to produce an object file with duplicate section names
> using gcc on x86. Even with -ffunction-sections, every section gets a
> unique name. Is this architecture-specific behaviour of gcc?

Good point.  ld -r will collapse them into the same section (since gcc
produces them they have to have the same section attributes).

You can do it with --unique, but no arch uses that.  PARISC has a
platform-specific toolchain hack which does that for .text sections.
(Thanks to Alan Modra for that clue...)

Thanks,
Rusty.
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On Sun, Apr 7, 2013 at 8:48 PM, John David Anglin <dave.anglin-CzeTG9NwML0@public.gmane.org=
> wrote:
> On 7-Apr-13, at 2:39 PM, Mike Frysinger wrote:
>
>> just to be clear, the only insn you need is:
>>         ble 0x100(%sr2, %r0);
>>
>> the kernel docs say sr2 holds the kernel gateway page (so i guess 0x=
100 is
>> a
>> known offset into that).  the docs don't mention r0 that i can see, =
so i'm
>> guessing it's one of those "always 0" registers ?
>
>
> Yes.  There is also an entry at offset 0xb0 for light-weight-syscalls=
=2E
> Currently,
> this implements an atomic CAS operation used for pthread support.

Mike (and Kyle),

=46or review, here are the tables as they now stand:

=3D=3D=3D=3D=3D
   Architecture calling conventions
       Every architecture has its own way of invoking and passing argum=
ents to
       the kernel.  The details for various architectures are  listed  =
in  the
       two tables below.

       The  first  table  lists  the  instruction used to transition to=
 kernel
       mode, (which might not be the fastest or best way to transition =
to  the
       kernel,  so  you might have to refer to the VDSO), the register =
used to
       indicate the system call number, and the register used  to  retu=
rn  the
       system call result.

       arch/ABI   instruction          syscall #   retval  Notes
       =E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80
       arm/OABI   swi NR               -           a1      NR is syscal=
l #
       arm/EABI   swi 0x0              r7          r1
       blackfin   excpt 0x0            P0          R0
       i386       int $0x80            eax         eax
       ia64       break 0x100000       r15         r10/r8C
       parisc     ble 0x100(%sr2, %r0) r20         r28
       sparc/32   t 0x10               g1          o0
       sparc/64   t 0x6d               g1          o0
       x86_64     syscall              rax         rax

       The second table shows the registers used to pass the system cal=
l argu=E2=80=90
       ments.

       arch/ABI   arg1   arg2   arg3   arg4   arg5   arg6   arg7
       =E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80
       arm/OABI   a1     a2     a3     a4     v1     v2     v3
       arm/EABI   r1     r2     r3     r4     r5     r6     r7
       blackfin   R0     R1     R2     R3     R4     R5     -
       i386       ebx    ecx    edx    esi    edi    ebp    -
       ia64       r11    r9     r10    r14    r15    r13    -
       parisc     r26    r25    r24    r23    r22    r21    -
       sparc/32   o0     o1     o2     o3     o4     o5     -
       sparc/64   o0     o1     o2     o3     o4     o5     -
       x86_64     rdi    rsi    rdx    r10    r8     r9     -

       Note that these tables don't cover the entire  calling  conventi=
on=E2=80=94some
       architectures  may  indiscriminately clobber other registers not=
 listed
       here.
=3D=3D=3D=3D=3D

Cheers,

Michael
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On Sun, Apr 7, 2013 at 5:11 PM, Kyle McMartin <kyle-pfcGkIkfWfAsA/PxXw9srA@public.gmane.org> wrote:
> On Sun, Apr 07, 2013 at 07:56:49AM -0700, James Bottomley wrote:
>> Actually, that's not quite correct.  on 64 bits it's arg1-8 are %r26-%
>> r19 but on 32 the convention is that arg1-arg4 are %r26-%r23 and the
>> rest on stack.  We can also do register pair combining on 32 bits for a
>> 64 bit argument.
>
> I guess the confusion is whether you're writing this from the kernel
> side or the userspace side. The syscall instruction is called with six
> arg registers, but we fix it on entry to the kernel when we call into C.> --
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Thanks, Kyle.
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On 4/8/2013 7:54 AM, Kurt Fitzner wrote:
> On 23/03/2013 7:53 PM, John David Anglin wrote:
>> I would really recommend going with the packages at
>> ftp://ftp.parisc-linux.org/debian-ports/unstable
>> instead of the squeeze packages on debian-ports.org.  The dependencies
>> are somewhat broken for
>> the stuff on debian-ports.org and great care is needed in installing
>> these packages.  For example,
>> the udev package on debian-ports is a bootstrap breaker.  It might be
>> that we could fill in the squeeze
>> port but it would be a fair bit of work.
> I've spent some time over the last couple weeks trying to work out an
> upgrade path to the the unstable packages on parisc-linux.org, but am
> having a very hard time.  Trying to go from Debian 5 directly to a
> mostly (but not totally) complete post-6 Wheezy without having through
> intermediary steps seems to be beyond aptitude (or me) to resolve.  I
> can handle missing packages, but the number of broken packages aptitude
> says there will be at the end of an upgrade is daunting.  And I've only
> got one HPPA box which leaves me a little on the chicken side with
> respects to playing.
>
> I must admit to being less than an expert on Debian's packaging system,
> mostly because it has always "just worked", but I am wondering if my
> problems are stemming from the current unstable packages being set as
> superceding packages that no longer exist in between what I have and them.
>
> What I think I really need is a snapshot of what was unstable the day
> Lenny was officially dropped.  Does this exist anywhere?
I don't think that exists.  What exists is the snapshot when the 
unstable hppa packages were
copied from debian.org to debian-ports.org.  Unfortunately, at that 
time, there were various
missing packages.  So, updating would result in many important packages 
being deleted.
Further, many packages have common portions that are architecture 
independent.  However,
they often are still version dependent.  So, as things evolved, the 
common parts needed
for the hppa stuff has disappeared.

Thus, the only option is to use the packages on 
ftp://ftp.parisc-linux.org/debian-ports/unstable
together with what's on debian-ports.org.  In what I upload, I include 
the common parts from
debian-ports.org.  So, hopefully, things will not get as inconsistent.

Last week I uploaded many new packages, so the archive is much closer to 
the unstable for
other ports (particularly, for packages starting with [a-l]).  I install 
all packages that I use before
uploading so I know that at least on my system there are no broken 
packages (it started as
a server system).  However, there's likely still a bunch of stuff that 
needs updating for desktop
systems.

I haven't tried to do an upgrade directly using 
ftp://ftp.parisc-linux.org/debian-ports/unstable.  Helge
Deller has done it.  So, maybe he can comment.  In general, I would do 
the update as follows:

1) Build and install 3.9-rc5 or later from kernel.org.
2) Update packages from eglibc source.
3) Update packages from binutils source.
4) Install packages from GCC 4.6 and 4.7.
5) Update packages from perl source.
6) Update packages from python2.7 source.

This puts you in the position of being able to build missing packages if 
necessary.

 From there, update selectively.  If any update wants to remove packages 
that are largely
unrelated to the update, stop and try to find out why.  Possibly, the 
packages to be removed
need updating first.

Would you be willing to post what's missing and broken?  I can try and 
fill in what's missing.

Dave

-- 
John David Anglin    dave.anglin@bell.net



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On 23/03/2013 7:53 PM, John David Anglin wrote:
> I would really recommend going with the packages at
> ftp://ftp.parisc-linux.org/debian-ports/unstable
> instead of the squeeze packages on debian-ports.org.  The dependencies
> are somewhat broken for
> the stuff on debian-ports.org and great care is needed in installing
> these packages.  For example,
> the udev package on debian-ports is a bootstrap breaker.  It might be
> that we could fill in the squeeze
> port but it would be a fair bit of work.

I've spent some time over the last couple weeks trying to work out an
upgrade path to the the unstable packages on parisc-linux.org, but am
having a very hard time.  Trying to go from Debian 5 directly to a
mostly (but not totally) complete post-6 Wheezy without having through
intermediary steps seems to be beyond aptitude (or me) to resolve.  I
can handle missing packages, but the number of broken packages aptitude
says there will be at the end of an upgrade is daunting.  And I've only
got one HPPA box which leaves me a little on the chicken side with
respects to playing.

I must admit to being less than an expert on Debian's packaging system,
mostly because it has always "just worked", but I am wondering if my
problems are stemming from the current unstable packages being set as
superceding packages that no longer exist in between what I have and them.

What I think I really need is a snapshot of what was unstable the day
Lenny was officially dropped.  Does this exist anywhere?

Thanks,

     Kurt.

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On Mon, Apr 08, 2013 at 01:44:45PM +0930, Rusty Russell wrote:
> Philip Kranz <philip.kranz@googlemail.com> writes:
> > I am not able to produce an object file with duplicate section names
> > using gcc on x86. Even with -ffunction-sections, every section gets a
> > unique name. Is this architecture-specific behaviour of gcc?
> 
> Good point.  ld -r will collapse them into the same section (since gcc
> produces them they have to have the same section attributes).
> 
> You can do it with --unique, but no arch uses that.  PARISC has a
> platform-specific toolchain hack which does that for .text sections.
> (Thanks to Alan Modra for that clue...)

So that problem is indeed platform-specific. If it is safe to assume
that kernel modules don't have duplicate section names (except on
PARISC), it would make sense to simply move the check for empty sections
to arch/parisc as you suggested.

James, what do you think about that?

Greetings,
Philip

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Cc: Kurt Fitzner <kurt.fitzner@gmail.com>,
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To: John David Anglin <dave.anglin@bell.net>
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On 04/08/2013 04:31 PM, John David Anglin wrote:
> On 4/8/2013 7:54 AM, Kurt Fitzner wrote:
>> On 23/03/2013 7:53 PM, John David Anglin wrote:
>>> I would really recommend going with the packages at
>>> ftp://ftp.parisc-linux.org/debian-ports/unstable
>>> instead of the squeeze packages on debian-ports.org.  The dependencies
>>> are somewhat broken for
>>> the stuff on debian-ports.org and great care is needed in installing
>>> these packages.  For example,
>>> the udev package on debian-ports is a bootstrap breaker.  It might be
>>> that we could fill in the squeeze
>>> port but it would be a fair bit of work.
>> I've spent some time over the last couple weeks trying to work out an
>> upgrade path to the the unstable packages on parisc-linux.org, but am
>> having a very hard time.  Trying to go from Debian 5 directly to a
>> mostly (but not totally) complete post-6 Wheezy without having through
>> intermediary steps seems to be beyond aptitude (or me) to resolve.  I
>> can handle missing packages, but the number of broken packages aptitude
>> says there will be at the end of an upgrade is daunting.  And I've only
>> got one HPPA box which leaves me a little on the chicken side with
>> respects to playing.
>>
>> I must admit to being less than an expert on Debian's packaging system,
>> mostly because it has always "just worked", but I am wondering if my
>> problems are stemming from the current unstable packages being set as
>> superceding packages that no longer exist in between what I have and them.
>>
>> What I think I really need is a snapshot of what was unstable the day
>> Lenny was officially dropped.  Does this exist anywhere?
> I don't think that exists.  What exists is the snapshot when the unstable hppa packages were
> copied from debian.org to debian-ports.org.  Unfortunately, at that time, there were various
> missing packages.  So, updating would result in many important packages being deleted.
> Further, many packages have common portions that are architecture independent.  However,
> they often are still version dependent.  So, as things evolved, the common parts needed
> for the hppa stuff has disappeared.
> 
> Thus, the only option is to use the packages on ftp://ftp.parisc-linux.org/debian-ports/unstable
> together with what's on debian-ports.org.  In what I upload, I include the common parts from
> debian-ports.org.  So, hopefully, things will not get as inconsistent.
> 
> Last week I uploaded many new packages, so the archive is much closer to the unstable for
> other ports (particularly, for packages starting with [a-l]).  I install all packages that I use before
> uploading so I know that at least on my system there are no broken packages (it started as
> a server system).  However, there's likely still a bunch of stuff that needs updating for desktop
> systems.
> 
> I haven't tried to do an upgrade directly using ftp://ftp.parisc-linux.org/debian-ports/unstable.  Helge
> Deller has done it.  So, maybe he can comment.  

Nothing important on which I can comment here.
Most of my machines were running unstable before the migration to debian-ports happened.
>From there on I just updated all packages with the ones which Dave provided, and
which are now on ftp://ftp.parisc-linux.org/debian-ports/unstable.

Since I mostly don't run desktop-apps I didn't had any bigger issues.

On one of the machines I think I installed the Lenny images and then just updated the packages. 

Helge

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On 08/04/2013 11:31 AM, John David Anglin wrote:

> 1) Build and install 3.9-rc5 or later from kernel.org.

Is it safe to jump from 2.6.26 to 3.9?  I haven't followed Linux kernel
development for quite a while, not since my SLS and Slackware days when
I'd roll my own kernel regularly, but I remember lots of things broke
when I wasn't careful (libc, anything navigating /proc, etc).

> Would you be willing to post what's missing and broken?  I can try and
> fill in what's missing.

Your warning about the packages on debian-ports.org had prompted me to
remove it from my sources, which in turn was making aptitude throw fits
when asked to calculate any sort of package upgrade.  I have since added
it back in, and (perhaps in conjunction with the packages you have
recently added) have been able to upgrade most of my tool chain now
(gcc, autoconf/make, libtool).

One package I can't seem to upgrade without losing half my system is
dpkg, which I will need in order to build any recent source packages.
I'm still trying to work out if there's anything missing, or if it's
just dependencies that aptitude can't sort out without help.  I may just
have to strip it down to its debian bolts and go from there.

    Kurt.


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Don't use create_proc_read_entry() as that is deprecated, but rather use
proc_create_data() and seq_file instead.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
cc: Helge Deller <deller@gmx.de>
cc: linux-parisc@vger.kernel.org
---

 arch/parisc/kernel/pdc_chassis.c |   47 +++++++++++++++++++-------------------
 1 file changed, 24 insertions(+), 23 deletions(-)

diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c
index d47ba1a..8fa314f 100644
--- a/arch/parisc/kernel/pdc_chassis.c
+++ b/arch/parisc/kernel/pdc_chassis.c
@@ -30,11 +30,13 @@
 #endif
 
 #include <linux/init.h>
+#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/reboot.h>
 #include <linux/notifier.h>
 #include <linux/cache.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 
 #include <asm/pdc_chassis.h>
 #include <asm/processor.h>
@@ -244,38 +246,38 @@ int pdc_chassis_send_status(int message)
 
 #ifdef CONFIG_PDC_CHASSIS_WARN
 #ifdef CONFIG_PROC_FS
-static int pdc_chassis_warn_pread(char *page, char **start, off_t off,
-		int count, int *eof, void *data)
+static int pdc_chassis_warn_show(struct seq_file *m, void *v)
 {
-	char *out = page;
-	int len, ret;
 	unsigned long warn;
 	u32 warnreg;
 
-	ret = pdc_chassis_warn(&warn);
-	if (ret != PDC_OK)
+	if (pdc_chassis_warn(&warn) != PDC_OK)
 		return -EIO;
 
 	warnreg = (warn & 0xFFFFFFFF);
 
 	if ((warnreg >> 24) & 0xFF)
-		out += sprintf(out, "Chassis component failure! (eg fan or PSU): 0x%.2x\n", ((warnreg >> 24) & 0xFF));
-
-	out += sprintf(out, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
-	out += sprintf(out, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
-	out += sprintf(out, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
-
-	len = out - page - off;
-	if (len < count) {
-		*eof = 1;
-		if (len <= 0) return 0;
-	} else {
-		len = count;
-	}
-	*start = page + off;
-	return len;
+		seq_printf(m, "Chassis component failure! (eg fan or PSU): 0x%.2x\n",
+			   (warnreg >> 24) & 0xFF);
+
+	seq_printf(m, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
+	seq_printf(m, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
+	seq_printf(m, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
+	return 0;
+}
+
+static int pdc_chassis_warn_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pdc_chassis_warn_show, NULL);
 }
 
+static const struct file_operations pdc_chassis_warn_fops = {
+	.open		= pdc_chassis_warn_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
 static int __init pdc_chassis_create_procfs(void)
 {
 	unsigned long test;
@@ -290,8 +292,7 @@ static int __init pdc_chassis_create_procfs(void)
 
 	printk(KERN_INFO "Enabling PDC chassis warnings support v%s\n",
 			PDC_CHASSIS_VER);
-	create_proc_read_entry("chassis", 0400, NULL, pdc_chassis_warn_pread,
-				NULL);
+	proc_create("chassis", 0400, NULL, &pdc_chassis_warn_fops);
 	return 0;
 }
 


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Subject: Re: [PATCH] Add non-zero module sections to sysfs
Date: Thu, 11 Apr 2013 16:11:55 +0200
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On Mon, Apr 08, 2013 at 01:44:45PM +0930, Rusty Russell wrote:
> Philip Kranz <philip.kranz@googlemail.com> writes:
> > Hello.
> >
> > On Fri, Apr 05, 2013 at 12:07:15PM +0200, James Bottomley wrote:
> >> Just so you know: this isn't a parisc specific problem.  Gcc produces
> >> duplicate section names under various circumstances, but the one that
> >> bites us is -ffunction-sections.  Note that there are proposals to use
> >> -ffunction-sections on all architectures (so we can garbage collect
> >> unused functions) in which case you'll induce the bug identified in
> >> 35dead4235e2b67da7275b4122fed37099c2f462 on every architecture
> >
> > I am not able to produce an object file with duplicate section names
> > using gcc on x86. Even with -ffunction-sections, every section gets a
> > unique name. Is this architecture-specific behaviour of gcc?
> 
> Good point.  ld -r will collapse them into the same section (since gcc
> produces them they have to have the same section attributes).
> 
> You can do it with --unique, but no arch uses that.  PARISC has a
> platform-specific toolchain hack which does that for .text sections.
> (Thanks to Alan Modra for that clue...)

Just for clarification, as we are currently preparing a patch set that
depends on this: Would the patch below be an acceptable solution for
this?

Thanks,
Philip



diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 2a625fb..1fd4411 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -341,6 +341,11 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
                ".PARISC.unwind", 14) == 0)
            me->arch.unwind_section = i;
 
+       /* we produce multiple, empty .text sections, and kallsyms
+       * gets upset.  make non-alloc so it doesn't see them. */
+       if (sechdrs[i].sh_size == 0)
+           sechdrs[i].sh_flags &= ~SHF_ALLOC;
+
        if (sechdrs[i].sh_type != SHT_RELA)
            continue;
 
diff --git a/kernel/module.c b/kernel/module.c
index 3c2c72d..42e0d5a 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1316,7 +1316,7 @@ resolve_symbol_wait(struct module *mod,
 #ifdef CONFIG_KALLSYMS
 static inline bool sect_empty(const Elf_Shdr *sect)
 {
-   return !(sect->sh_flags & SHF_ALLOC) || sect->sh_size == 0;
+   return !(sect->sh_flags & SHF_ALLOC);
 }
 
 struct module_sect_attr

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On Sunday 07 April 2013 14:48:42 John David Anglin wrote:
> On 7-Apr-13, at 2:39 PM, Mike Frysinger wrote:
> > just to be clear, the only insn you need is:
> > 	ble 0x100(%sr2, %r0);
> >=20
> > the kernel docs say sr2 holds the kernel gateway page (so i guess
> > 0x100 is a
> > known offset into that).  the docs don't mention r0 that i can see,
> > so i'm
> > guessing it's one of those "always 0" registers ?
>=20
> Yes.  There is also an entry at offset 0xb0 for light-weight-
> syscalls.  Currently,
> this implements an atomic CAS operation used for pthread support.

interesting.  sounds like a poor man's vDSO.  i'll document this the new=20
vdso(7) man page.
=2Dmike

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On 11-Apr-13, at 9:55 PM, Mike Frysinger wrote:

> On Sunday 07 April 2013 14:48:42 John David Anglin wrote:
>> On 7-Apr-13, at 2:39 PM, Mike Frysinger wrote:
>>> just to be clear, the only insn you need is:
>>> 	ble 0x100(%sr2, %r0);
>>>
>>> the kernel docs say sr2 holds the kernel gateway page (so i guess
>>> 0x100 is a
>>> known offset into that).  the docs don't mention r0 that i can see,
>>> so i'm
>>> guessing it's one of those "always 0" registers ?
>>
>> Yes.  There is also an entry at offset 0xb0 for light-weight-
>> syscalls.  Currently,
>> this implements an atomic CAS operation used for pthread support.
>
> interesting.  sounds like a poor man's vDSO.  i'll document this the  
> new
> vdso(7) man page.

Not exactly, the code runs on the gateway page which is in kernel space.
The main reason for doing the operation in kernel space is to prevent
processes from being preempted while executing in the lock region.  In  
general,
parisc processes are not preempted on the gateway page.  There are
some subtleties regarding fault handling.

There is support in glibc and libgcc for these calls.  The libgcc  
implementation
in linux-atomic.c is very similar to that on arm.

Dave
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On Thursday 11 April 2013 22:34:43 John David Anglin wrote:
> On 11-Apr-13, at 9:55 PM, Mike Frysinger wrote:
> > On Sunday 07 April 2013 14:48:42 John David Anglin wrote:
> >> On 7-Apr-13, at 2:39 PM, Mike Frysinger wrote:
> >>> just to be clear, the only insn you need is:
> >>> 	ble 0x100(%sr2, %r0);
> >>>=20
> >>> the kernel docs say sr2 holds the kernel gateway page (so i guess
> >>> 0x100 is a
> >>> known offset into that).  the docs don't mention r0 that i can see,
> >>> so i'm
> >>> guessing it's one of those "always 0" registers ?
> >>=20
> >> Yes.  There is also an entry at offset 0xb0 for light-weight-
> >> syscalls.  Currently,
> >> this implements an atomic CAS operation used for pthread support.
> >=20
> > interesting.  sounds like a poor man's vDSO.  i'll document this the
> > new
> > vdso(7) man page.
>=20
> Not exactly, the code runs on the gateway page which is in kernel space.
> The main reason for doing the operation in kernel space is to prevent
> processes from being preempted while executing in the lock region.  In
> general,
> parisc processes are not preempted on the gateway page.  There are
> some subtleties regarding fault handling.

sure ... the Blackfin arch does a similar thing for providing fast atomic=20
primitives to userspace since the ISA can't.

what do you think of this section for vdso(7) ?  i might have to split the=
=20
"real" vdso arches from these others since there's a couple now (arm, bfin,=
=20
parisc), and i think there might be more down the line (microblaze).

=2ESS parisc (hppa) functions
=2E\" See linux/arch/parisc/kernel/syscall.S
=2E\" See linux/Documentation/parisc/registers
The parisc port has a code page full of utility functions.
Rather than use the normal ELF aux vector approach, it passes the address of
the page to the process via the SR2 register.
This is done to match the way HP-UX works.

Since it's just a raw page of code, there is no ELF information for doing
symbol lookups or versioning.
Simply call into the appropriate offset via the branch instruction, e.g.:
=2Ebr
ble <offset>(%sr2, %r0)
=2Eif t \{\
=2Eft CW
\}
=2ETS
l l.
offset	function
_
00b0	lws_entry
00e0	set_thread_pointer
0100	linux_gateway_entry (syscall)
0268	syscall_nosys
0274	tracesys
0324	tracesys_next
0368	tracesys_exit
03a0	tracesys_sigexit
03b8	lws_start
03dc	lws_exit_nosys
03e0	lws_exit
03e4	lws_compare_and_swap64
03e8	lws_compare_and_swap
0404	cas_wouldblock
0410	cas_action
=2ETE
=2Eif t \{\
=2Ein
=2Eft P
\}

> There is support in glibc and libgcc for these calls.  The libgcc
> implementation
> in linux-atomic.c is very similar to that on arm.

interesting.  another arch to add :).
=2Dmike

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On Thu, 2013-04-11 at 23:38 -0400, Mike Frysinger wrote:
> On Thursday 11 April 2013 22:34:43 John David Anglin wrote:
> > On 11-Apr-13, at 9:55 PM, Mike Frysinger wrote:
> > > On Sunday 07 April 2013 14:48:42 John David Anglin wrote:
> > >> On 7-Apr-13, at 2:39 PM, Mike Frysinger wrote:
> > >>> just to be clear, the only insn you need is:
> > >>>   ble 0x100(%sr2, %r0);
> > >>> 
> > >>> the kernel docs say sr2 holds the kernel gateway page (so i guess
> > >>> 0x100 is a
> > >>> known offset into that).  the docs don't mention r0 that i can see,
> > >>> so i'm
> > >>> guessing it's one of those "always 0" registers ?
> > >> 
> > >> Yes.  There is also an entry at offset 0xb0 for light-weight-
> > >> syscalls.  Currently,
> > >> this implements an atomic CAS operation used for pthread support.
> > > 
> > > interesting.  sounds like a poor man's vDSO.  i'll document this the
> > > new
> > > vdso(7) man page.
> > 
> > Not exactly, the code runs on the gateway page which is in kernel space.
> > The main reason for doing the operation in kernel space is to prevent
> > processes from being preempted while executing in the lock region.  In
> > general,
> > parisc processes are not preempted on the gateway page.  There are
> > some subtleties regarding fault handling.
> 
> sure ... the Blackfin arch does a similar thing for providing fast atomic 
> primitives to userspace since the ISA can't.
> 
> what do you think of this section for vdso(7) ?  i might have to split the 
> "real" vdso arches from these others since there's a couple now (arm, bfin, 
> parisc), and i think there might be more down the line (microblaze).

I've got to say, I really don't think this can be classified as a vdso.
For a vdso, the kernel exports an ELF object that can be linked
dynamically into any elf binary requiring it.  The ELF section
information provides full details and so vdso entries can be called by
symbol.

In the parisc gateway page implementation, we have a set of "hidden"
primitives which the executable must know how to call (no self
description like a vdso).  This mechanism is identical to the original
intent of the x86 int <n> instruction (an instruction that traps into
the kernel and performs some primitive action but to use it, you have to
know which function corresponds to which value of <n>).

James


> .SS parisc (hppa) functions
> .\" See linux/arch/parisc/kernel/syscall.S
> .\" See linux/Documentation/parisc/registers
> The parisc port has a code page full of utility functions.
> Rather than use the normal ELF aux vector approach, it passes the address of
> the page to the process via the SR2 register.
> This is done to match the way HP-UX works.
> 
> Since it's just a raw page of code, there is no ELF information for doing
> symbol lookups or versioning.
> Simply call into the appropriate offset via the branch instruction, e.g.:
> .br
> ble <offset>(%sr2, %r0)
> .if t \{\
> .ft CW
> \}
> .TS
> l l.
> offset  function
> _
> 00b0    lws_entry
> 00e0    set_thread_pointer
> 0100    linux_gateway_entry (syscall)
> 0268    syscall_nosys
> 0274    tracesys
> 0324    tracesys_next
> 0368    tracesys_exit
> 03a0    tracesys_sigexit
> 03b8    lws_start
> 03dc    lws_exit_nosys
> 03e0    lws_exit
> 03e4    lws_compare_and_swap64
> 03e8    lws_compare_and_swap
> 0404    cas_wouldblock
> 0410    cas_action
> .TE
> .if t \{\
> .in
> .ft P
> \}
> 
> > There is support in glibc and libgcc for these calls.  The libgcc
> > implementation
> > in linux-atomic.c is very similar to that on arm.
> 
> interesting.  another arch to add :).
> -mike


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On Thu, Apr 11, 2013 at 09:55:43PM -0400, Mike Frysinger wrote:
> interesting.  sounds like a poor man's vDSO.  i'll document this the new 
> vdso(7) man page.
> -mike

fwiw ia64 does basically the same thing for a subset of syscalls
(fsys.c)

--Kyle
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Cc: John David Anglin <dave.anglin@bell.net>,
	Kyle McMartin <kyle@mcmartin.ca>,
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To: James Bottomley <James.Bottomley@hansenpartnership.com>
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On Friday 12 April 2013 00:45:12 James Bottomley wrote:
> On Thu, 2013-04-11 at 23:38 -0400, Mike Frysinger wrote:
> > On Thursday 11 April 2013 22:34:43 John David Anglin wrote:
> > > On 11-Apr-13, at 9:55 PM, Mike Frysinger wrote:
> > > > On Sunday 07 April 2013 14:48:42 John David Anglin wrote:
> > > >> On 7-Apr-13, at 2:39 PM, Mike Frysinger wrote:
> > > >>> just to be clear, the only insn you need is:
> > > >>>   ble 0x100(%sr2, %r0);
> > > >>>=20
> > > >>> the kernel docs say sr2 holds the kernel gateway page (so i guess
> > > >>> 0x100 is a
> > > >>> known offset into that).  the docs don't mention r0 that i can se=
e,
> > > >>> so i'm
> > > >>> guessing it's one of those "always 0" registers ?
> > > >>=20
> > > >> Yes.  There is also an entry at offset 0xb0 for light-weight-
> > > >> syscalls.  Currently,
> > > >> this implements an atomic CAS operation used for pthread support.
> > > >=20
> > > > interesting.  sounds like a poor man's vDSO.  i'll document this the
> > > > new
> > > > vdso(7) man page.
> > >=20
> > > Not exactly, the code runs on the gateway page which is in kernel
> > > space. The main reason for doing the operation in kernel space is to
> > > prevent processes from being preempted while executing in the lock
> > > region.  In general,
> > > parisc processes are not preempted on the gateway page.  There are
> > > some subtleties regarding fault handling.
> >=20
> > sure ... the Blackfin arch does a similar thing for providing fast atom=
ic
> > primitives to userspace since the ISA can't.
> >=20
> > what do you think of this section for vdso(7) ?  i might have to split
> > the "real" vdso arches from these others since there's a couple now
> > (arm, bfin, parisc), and i think there might be more down the line
> > (microblaze).
>=20
> I've got to say, I really don't think this can be classified as a vdso.
> For a vdso, the kernel exports an ELF object that can be linked
> dynamically into any elf binary requiring it.  The ELF section
> information provides full details and so vdso entries can be called by
> symbol.

strictly speaking, sure, a vDSO is only a vDSO if it's an ELF (since the=20
acronym is literally "virtual dynamic shared object").  however, i see the=
=20
vdso as being a bit more of a flexible concept -- it's a place of shared co=
de=20
that the kernel manages and exports for all userspace processes. =20
fundamentally, the point of the vDSO is to provide services to greatly spee=
d=20
up userspace.  in that regard, these mapped pages are exactly like vDSOs.

thus i think it's appropriate to document these "fixed code" regions that m=
any=20
arches export (ARM, Blackfin, Itanium, Microblaze, PA-RISC) in the same man=
=20
page as the vdso.  especially since (currently) arches do one or the other,=
=20
but not both.

> In the parisc gateway page implementation, we have a set of "hidden"
> primitives which the executable must know how to call (no self
> description like a vdso).  This mechanism is identical to the original
> intent of the x86 int <n> instruction (an instruction that traps into
> the kernel and performs some primitive action but to use it, you have to
> know which function corresponds to which value of <n>).

would it be useful to document all of them ?  or just the ones that userspa=
ce=20
actively uses (like syscall/cas) ?  or should all of this be recorded in th=
e=20
kernel's Documentation/parisc/ subdir and just have the man page refer peop=
le=20
there (like it does for ARM & Blackfin currently) ?
=2Dmike

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Subject: Re: [PATCH] man2 : syscall.2 : document syscall calling conventions
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To: Mike Frysinger <vapier@gentoo.org>
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On Fri, 2013-04-12 at 14:45 -0400, Mike Frysinger wrote:
> On Friday 12 April 2013 00:45:12 James Bottomley wrote:
> > On Thu, 2013-04-11 at 23:38 -0400, Mike Frysinger wrote:
> > > what do you think of this section for vdso(7) ?  i might have to split
> > > the "real" vdso arches from these others since there's a couple now
> > > (arm, bfin, parisc), and i think there might be more down the line
> > > (microblaze).
> > 
> > I've got to say, I really don't think this can be classified as a vdso.
> > For a vdso, the kernel exports an ELF object that can be linked
> > dynamically into any elf binary requiring it.  The ELF section
> > information provides full details and so vdso entries can be called by
> > symbol.
> 
> strictly speaking, sure, a vDSO is only a vDSO if it's an ELF (since the 
> acronym is literally "virtual dynamic shared object").  however, i see the 
> vdso as being a bit more of a flexible concept -- it's a place of shared code 
> that the kernel manages and exports for all userspace processes.  
> fundamentally, the point of the vDSO is to provide services to greatly speed 
> up userspace.  in that regard, these mapped pages are exactly like vDSOs.

I don't entirely understand this classification.  If the kernel<->user
gateway becomes classified as a vdso, that covers our syscall interface
on every archtecture.  There's now no distinction between a vdso (which
may not even move to kernel mode) and a syscall.

I think the difference is that a syscall is a specific call to a known
kernel routine by number and it involves a transition to kernel mode.  A
vdso is an exported link object containing certain functions which may
or may not cause a trap to kernel mode when executed.  The distinction
is how you do the call.  For syscalls, you have to know the number and
the arguments.  For vdso you just have to know the symbol (and
obviously, the prototype for C code) and the kernel supplies the
implementation direct to the userspace binary.

> thus i think it's appropriate to document these "fixed code" regions that many 
> arches export (ARM, Blackfin, Itanium, Microblaze, PA-RISC) in the same man 
> page as the vdso.  especially since (currently) arches do one or the other, 
> but not both.

I really see these as a type of lightweight syscall.  You use the
syscall prototype (call by number with known arguments) but the call may
not necessarily transition to kernel mode proper to handle the function.

> > In the parisc gateway page implementation, we have a set of "hidden"
> > primitives which the executable must know how to call (no self
> > description like a vdso).  This mechanism is identical to the original
> > intent of the x86 int <n> instruction (an instruction that traps into
> > the kernel and performs some primitive action but to use it, you have to
> > know which function corresponds to which value of <n>).
> 
> would it be useful to document all of them ?  or just the ones that userspace 
> actively uses (like syscall/cas) ?  or should all of this be recorded in the 
> kernel's Documentation/parisc/ subdir and just have the man page refer people 
> there (like it does for ARM & Blackfin currently) ?

I'm not sure.  For x86 they're in include/asm/traps.h.  I think the only
ones we really use are int3 for breakpoint, int4 for overflow and int80
for legacy syscall.

James



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Subject: Re: [PATCH] man2 : syscall.2 : document syscall calling conventions
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On Friday 12 April 2013 15:14:47 James Bottomley wrote:
> On Fri, 2013-04-12 at 14:45 -0400, Mike Frysinger wrote:
> > On Friday 12 April 2013 00:45:12 James Bottomley wrote:
> > > On Thu, 2013-04-11 at 23:38 -0400, Mike Frysinger wrote:
> > > > what do you think of this section for vdso(7) ?  i might have to
> > > > split the "real" vdso arches from these others since there's a
> > > > couple now (arm, bfin, parisc), and i think there might be more down
> > > > the line (microblaze).
> > >=20
> > > I've got to say, I really don't think this can be classified as a vds=
o.
> > > For a vdso, the kernel exports an ELF object that can be linked
> > > dynamically into any elf binary requiring it.  The ELF section
> > > information provides full details and so vdso entries can be called by
> > > symbol.
> >=20
> > strictly speaking, sure, a vDSO is only a vDSO if it's an ELF (since the
> > acronym is literally "virtual dynamic shared object").  however, i see
> > the vdso as being a bit more of a flexible concept -- it's a place of
> > shared code that the kernel manages and exports for all userspace
> > processes. fundamentally, the point of the vDSO is to provide services
> > to greatly speed up userspace.  in that regard, these mapped pages are
> > exactly like vDSOs.
>=20
> I don't entirely understand this classification.  If the kernel<->user
> gateway becomes classified as a vdso, that covers our syscall interface
> on every archtecture.  There's now no distinction between a vdso (which
> may not even move to kernel mode) and a syscall.
>=20
> I think the difference is that a syscall is a specific call to a known
> kernel routine by number and it involves a transition to kernel mode.  A
> vdso is an exported link object containing certain functions which may
> or may not cause a trap to kernel mode when executed.  The distinction
> is how you do the call.  For syscalls, you have to know the number and
> the arguments.  For vdso you just have to know the symbol (and
> obviously, the prototype for C code) and the kernel supplies the
> implementation direct to the userspace binary.

i'm not fully versed in the parisc linux gateway page or how the architectu=
re=20
is handling things, so i could be completely off here.  from reading the so=
urce=20
code, it *looked* like it was just a page of utility funcs that userspace=20
branches to without changing privilege modes or going through the full sysc=
all=20
routines.

so i'm saying the gateway page itself can be thought of in the same vein as=
 a=20
vDSO.  it's a black box with entry points that provide light weight service=
s=20
to userspace.  sometimes it ends up triggering a full syscall, sometimes it=
=20
doesn't (just like a vDSO).

> > thus i think it's appropriate to document these "fixed code" regions th=
at
> > many arches export (ARM, Blackfin, Itanium, Microblaze, PA-RISC) in the
> > same man page as the vdso.  especially since (currently) arches do one
> > or the other, but not both.
>=20
> I really see these as a type of lightweight syscall.  You use the
> syscall prototype (call by number with known arguments) but the call may
> not necessarily transition to kernel mode proper to handle the function.

if you think of the vdso in a very strict light (it's exactly an ELF that t=
he=20
kernel automatically maps into every process's address space), then i guess=
=20
you can only classify these as lightweight syscalls (where the address/offs=
et=20
is the "syscall #").

i see vdso as being a more flexible concept than that -- if it's code mappe=
d=20
into a process's address space and provides useful lightweight services tha=
t=20
are meant to be used specifically in lieu of syscall(), then it's vdso-like=
 and=20
should be in the vdso(7) man page.  it has a lot more in common imo with a=
=20
vdso than it does with an actual syscall.  i certainly think vdso(7) is mor=
e=20
appropriate for these regions than syscall(2) or syscalls(2).

> > > In the parisc gateway page implementation, we have a set of "hidden"
> > > primitives which the executable must know how to call (no self
> > > description like a vdso).  This mechanism is identical to the original
> > > intent of the x86 int <n> instruction (an instruction that traps into
> > > the kernel and performs some primitive action but to use it, you have
> > > to know which function corresponds to which value of <n>).
> >=20
> > would it be useful to document all of them ?  or just the ones that
> > userspace actively uses (like syscall/cas) ?  or should all of this be
> > recorded in the kernel's Documentation/parisc/ subdir and just have the
> > man page refer people there (like it does for ARM & Blackfin currently)
> > ?
>=20
> I'm not sure.  For x86 they're in include/asm/traps.h.  I think the only
> ones we really use are int3 for breakpoint, int4 for overflow and int80
> for legacy syscall.

hmm, i wasn't even considering the other arch-specific services offered by =
e.g.=20
software interrupts.  i don't think those belong in vdso(7) as they don't=20
confer any of the lightweight advantages the vdso is designed to bring, but=
 it=20
might be useful to document these somewhere.  they're also not as common fo=
r=20
people to encounter as a vdso ...
=2Dmike

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On Fri, 2013-04-12 at 15:46 -0400, Mike Frysinger wrote:
> On Friday 12 April 2013 15:14:47 James Bottomley wrote:
> > On Fri, 2013-04-12 at 14:45 -0400, Mike Frysinger wrote:
> > > On Friday 12 April 2013 00:45:12 James Bottomley wrote:
> > > > On Thu, 2013-04-11 at 23:38 -0400, Mike Frysinger wrote:
> > > > > what do you think of this section for vdso(7) ?  i might have to
> > > > > split the "real" vdso arches from these others since there's a
> > > > > couple now (arm, bfin, parisc), and i think there might be more down
> > > > > the line (microblaze).
> > > > 
> > > > I've got to say, I really don't think this can be classified as a vdso.
> > > > For a vdso, the kernel exports an ELF object that can be linked
> > > > dynamically into any elf binary requiring it.  The ELF section
> > > > information provides full details and so vdso entries can be called by
> > > > symbol.
> > > 
> > > strictly speaking, sure, a vDSO is only a vDSO if it's an ELF (since the
> > > acronym is literally "virtual dynamic shared object").  however, i see
> > > the vdso as being a bit more of a flexible concept -- it's a place of
> > > shared code that the kernel manages and exports for all userspace
> > > processes. fundamentally, the point of the vDSO is to provide services
> > > to greatly speed up userspace.  in that regard, these mapped pages are
> > > exactly like vDSOs.
> > 
> > I don't entirely understand this classification.  If the kernel<->user
> > gateway becomes classified as a vdso, that covers our syscall interface
> > on every archtecture.  There's now no distinction between a vdso (which
> > may not even move to kernel mode) and a syscall.
> > 
> > I think the difference is that a syscall is a specific call to a known
> > kernel routine by number and it involves a transition to kernel mode.  A
> > vdso is an exported link object containing certain functions which may
> > or may not cause a trap to kernel mode when executed.  The distinction
> > is how you do the call.  For syscalls, you have to know the number and
> > the arguments.  For vdso you just have to know the symbol (and
> > obviously, the prototype for C code) and the kernel supplies the
> > implementation direct to the userspace binary.
> 
> i'm not fully versed in the parisc linux gateway page or how the architecture 
> is handling things, so i could be completely off here.  from reading the source 
> code, it *looked* like it was just a page of utility funcs that userspace 
> branches to without changing privilege modes or going through the full syscall 
> routines.

Oh, if that's the misunderstanding, then the gateway page is "special".
It actually has PAGE_GATEWAY bits set (this is linux terminology; in
parisc terminology it's Execute, promote to PL0)in the page map.  So
anything executing on this page executes with kernel level privilege
(there's more to it than that: to have this happen, you also have to use
a branch with a ,gate completer to activate the privilege promotion).
The upshot is that everything that runs on the gateway page runs at
kernel privilege but with the current user process address space
(although you have access to kernel space via %sr2).  For the 0x100
syscall entry, we redo the space registers to point to the kernel
address space (preserving the user address space in %sr3), move to wide
mode if required, save the user registers and branch into the kernel
syscall entry point.  For all the other functions, we execute at kernel
privilege but don't flip address spaces.  The basic upshot of this is
that these code snippets are executed atomically (because the kernel
can't be pre-empted) and they may perform architecturally forbidden (to
PL3) operations (like setting control registers).

James



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On 12-Apr-13, at 12:45 AM, James Bottomley wrote:

> On Thu, 2013-04-11 at 23:38 -0400, Mike Frysinger wrote:
>> On Thursday 11 April 2013 22:34:43 John David Anglin wrote:
>>> On 11-Apr-13, at 9:55 PM, Mike Frysinger wrote:
>>>> On Sunday 07 April 2013 14:48:42 John David Anglin wrote:
>>>>> On 7-Apr-13, at 2:39 PM, Mike Frysinger wrote:
>>>>>> just to be clear, the only insn you need is:
>>>>>>  ble 0x100(%sr2, %r0);
>>>>>>
>>>>>> the kernel docs say sr2 holds the kernel gateway page (so i guess
>>>>>> 0x100 is a
>>>>>> known offset into that).  the docs don't mention r0 that i can  
>>>>>> see,
>>>>>> so i'm
>>>>>> guessing it's one of those "always 0" registers ?
>>>>>
>>>>> Yes.  There is also an entry at offset 0xb0 for light-weight-
>>>>> syscalls.  Currently,
>>>>> this implements an atomic CAS operation used for pthread support.
>>>>
>>>> interesting.  sounds like a poor man's vDSO.  i'll document this  
>>>> the
>>>> new
>>>> vdso(7) man page.
>>>
>>> Not exactly, the code runs on the gateway page which is in kernel  
>>> space.
>>> The main reason for doing the operation in kernel space is to  
>>> prevent
>>> processes from being preempted while executing in the lock  
>>> region.  In
>>> general,
>>> parisc processes are not preempted on the gateway page.  There are
>>> some subtleties regarding fault handling.
>>
>> sure ... the Blackfin arch does a similar thing for providing fast  
>> atomic
>> primitives to userspace since the ISA can't.
>>
>> what do you think of this section for vdso(7) ?  i might have to  
>> split the
>> "real" vdso arches from these others since there's a couple now  
>> (arm, bfin,
>> parisc), and i think there might be more down the line (microblaze).
>
> I've got to say, I really don't think this can be classified as a  
> vdso.
> For a vdso, the kernel exports an ELF object that can be linked
> dynamically into any elf binary requiring it.  The ELF section
> information provides full details and so vdso entries can be called by
> symbol.
>
> In the parisc gateway page implementation, we have a set of "hidden"
> primitives which the executable must know how to call (no self
> description like a vdso).  This mechanism is identical to the original
> intent of the x86 int <n> instruction (an instruction that traps into
> the kernel and performs some primitive action but to use it, you  
> have to
> know which function corresponds to which value of <n>).

I agree with James.  There is no ELF object exported to userspace.  The
content of the gateway page is hidden.  The data structures used for
the locks are in the kernel itself.  Access is via a special branch  
instruction
rather than a break/trap instruction.

>
> James
>
>
>> .SS parisc (hppa) functions
>> .\" See linux/arch/parisc/kernel/syscall.S
>> .\" See linux/Documentation/parisc/registers
>> The parisc port has a code page full of utility functions.
>> Rather than use the normal ELF aux vector approach, it passes the  
>> address of
>> the page to the process via the SR2 register.
>> This is done to match the way HP-UX works.
>>
>> Since it's just a raw page of code, there is no ELF information for  
>> doing
>> symbol lookups or versioning.
>> Simply call into the appropriate offset via the branch instruction,  
>> e.g.:
>> .br
>> ble <offset>(%sr2, %r0)
>> .if t \{\
>> .ft CW
>> \}
>> .TS
>> l l.
>> offset  function
>> _
>> 00b0    lws_entry
>> 00e0    set_thread_pointer
>> 0100    linux_gateway_entry (syscall)
>> 0268    syscall_nosys
>> 0274    tracesys
>> 0324    tracesys_next
>> 0368    tracesys_exit
>> 03a0    tracesys_sigexit
>> 03b8    lws_start
>> 03dc    lws_exit_nosys
>> 03e0    lws_exit
>> 03e4    lws_compare_and_swap64
>> 03e8    lws_compare_and_swap
>> 0404    cas_wouldblock
>> 0410    cas_action
>> .TE
>> .if t \{\
>> .in
>> .ft P
>> \}
>>
>>> There is support in glibc and libgcc for these calls.  The libgcc
>>> implementation
>>> in linux-atomic.c is very similar to that on arm.
>>
>> interesting.  another arch to add :).
>> -mike
>
>
>

--
John David Anglin	dave.anglin@bell.net



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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/98496>

Prepare for killing free_all_bootmem_node() by using
free_all_bootmem().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: linux-parisc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 arch/parisc/mm/init.c |   12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index f80c175..ab76b84 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -585,18 +585,8 @@ void __init mem_init(void)
 			> BITS_PER_LONG);
 
 	high_memory = __va((max_pfn << PAGE_SHIFT));
-
-#ifndef CONFIG_DISCONTIGMEM
-	max_mapnr = page_to_pfn(virt_to_page(high_memory - 1)) + 1;
+	set_max_mapnr(page_to_pfn(virt_to_page(high_memory - 1)) + 1);
 	free_all_bootmem();
-#else
-	{
-		int i;
-
-		for (i = 0; i < npmem_ranges; i++)
-			free_all_bootmem_node(NODE_DATA(i));
-	}
-#endif
 
 #ifdef CONFIG_PA11
 	if (hppa_dma_ops == &pcxl_dma_ops) {
-- 
1.7.9.5

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From - Thu Nov 08 21:09:06 2018
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From: Will Deacon <will.deacon@arm.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] parisc: uaccess: fix compiler warnings caused by __put_user casting
Date: Wed, 17 Apr 2013 11:06:26 +0100
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Cc: linux-kernel@vger.kernel.org, Will Deacon <will.deacon@arm.com>,
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To: linux-parisc@vger.kernel.org
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When targetting 32-bit processors, __put_user emits a pair of stw
instructions for the 8-byte case. If the type of __val is a pointer, the
marshalling code casts it to the wider integer type of u64, resulting
in the following compiler warnings:

  kernel/signal.c: In function 'copy_siginfo_to_user':
  kernel/signal.c:2752:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  kernel/signal.c:2752:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  [...]

This patch fixes the warnings by removing the marshalling code and using
the correct output modifiers in the __put_{user,kernel}_asm64 macros
so that GCC will allocate the right registers without the need to
extract the two words explicitly.

Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/parisc/include/asm/uaccess.h | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 4ba2c93..a95af07 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -181,30 +181,24 @@ struct exception_data {
 #if !defined(CONFIG_64BIT)
 
 #define __put_kernel_asm64(__val,ptr) do {		    \
-	u64 __val64 = (u64)(__val);			    \
-	u32 hi = (__val64) >> 32;			    \
-	u32 lo = (__val64) & 0xffffffff;		    \
 	__asm__ __volatile__ (				    \
-		"\n1:\tstw %2,0(%1)"			    \
-		"\n2:\tstw %3,4(%1)\n\t"		    \
+		"\n1:\tstw %R2,0(%1)"			    \
+		"\n2:\tstw %2,4(%1)\n\t"		    \
 		ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\
 		ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
+		: "r"(ptr), "r"(__val), "0"(__pu_err) \
 		: "r1");				    \
 } while (0)
 
 #define __put_user_asm64(__val,ptr) do {	    	    \
-	u64 __val64 = (u64)(__val);			    \
-	u32 hi = (__val64) >> 32;			    \
-	u32 lo = (__val64) & 0xffffffff;		    \
 	__asm__ __volatile__ (				    \
-		"\n1:\tstw %2,0(%%sr3,%1)"		    \
-		"\n2:\tstw %3,4(%%sr3,%1)\n\t"		    \
+		"\n1:\tstw %R2,0(%%sr3,%1)"		    \
+		"\n2:\tstw %2,4(%%sr3,%1)\n\t"		    \
 		ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\
 		ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
+		: "r"(ptr), "r"(__val), "0"(__pu_err) \
 		: "r1");				    \
 } while (0)
 
-- 
1.8.0

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From - Thu Nov 08 21:09:06 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: PARISC Linux website and status update
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Hello everyone,

During the last few days I've invested some time in updating our 
* main website at http://www.parisc-linux.org (including news-updates and favicon) and the 
* Wiki at http://wiki.parisc-linux.org

As such, we now have some more current documentation about
* http://wiki.parisc-linux.org/Debian_Ports_Installation  - How to install from Debian-Ports
* http://wiki.parisc-linux.org/Debian_Ports - Status about (technical) migration to Debian-Ports, and
* http://wiki.parisc-linux.org/TODO - current status and TODOs regarding infrastructure, debian packages and kernel development.

Feedback and corrections are very much welcome.
Volunteers to help are even more welcome :-)

Helge


BTW: We have a Wiki at kernel.org (https://parisc.wiki.kernel.org) as well. Right now I only added links to the existing website/wiki there...
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From - Thu Nov 08 21:09:06 2018
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From: "Keven Miller \(3k\)" <kevenm@3kranger.com>
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Subject: Re: PARISC Linux website and status update
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Just wanted to pipe up and let you all know someone else follows this hppa 
thread,
having installed Lenny 5.0 onto an A500 box sometime ago.
(I made dvds from the iso files).

I am clueless about kernel programming, but wanted a device driver.

Thus finding a couple tutorials, I created sample drivers, and the one I 
needed.
Finally finished with rebuilding the kernel - with some vague-to-me examples
of needed commands.

Just a C programmer at heart, having been thrust into C++, Java, Cobol, 
Transact,
and a few other languages.

Keven Miller       www.3kranger.com
kevenm@3kranger.com


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Helge Deller wrote:
> Hello everyone,
> 
> During the last few days I've invested some time in updating our
> * main website at http://www.parisc-linux.org (including news-updates and
> favicon) and the * Wiki at http://wiki.parisc-linux.org
> 
> As such, we now have some more current documentation about
> * http://wiki.parisc-linux.org/Debian_Ports_Installation  - How to install
> from Debian-Ports * http://wiki.parisc-linux.org/Debian_Ports - Status
> about (technical) migration to Debian-Ports, and *
> http://wiki.parisc-linux.org/TODO - current status and TODOs regarding
> infrastructure, debian packages and kernel development.
> 
> Feedback and corrections are very much welcome.
> Volunteers to help are even more welcome :-)

While I understand your focus on Debian, on an official port website I would 
think that other supported distros should at least be mentioned. And it's not 
that hard, as there is only one distro at all that has HPPA support in their 
official tree at all ;)

Eike
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From - Thu Nov 08 21:09:06 2018
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--047d7bea3f98456b9004dabe94a2
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On Fri, Apr 19, 2013 at 11:55 PM, Rolf Eike Beer <eike-kernel@sf-tec.de>wrote:

> Helge Deller wrote:
> > Hello everyone,
> >
> > During the last few days I've invested some time in updating our
> > * main website at http://www.parisc-linux.org (including news-updates
> and
> > favicon) and the * Wiki at http://wiki.parisc-linux.org
> >
> > As such, we now have some more current documentation about
> > * http://wiki.parisc-linux.org/Debian_Ports_Installation  - How to
> install
> > from Debian-Ports * http://wiki.parisc-linux.org/Debian_Ports - Status
> > about (technical) migration to Debian-Ports, and *
> > http://wiki.parisc-linux.org/TODO - current status and TODOs regarding
> > infrastructure, debian packages and kernel development.
> >
> > Feedback and corrections are very much welcome.
> > Volunteers to help are even more welcome :-)
>
> While I understand your focus on Debian, on an official port website I
> would
> think that other supported distros should at least be mentioned. And it's
> not
> that hard, as there is only one distro at all that has HPPA support in
> their
> official tree at all ;)
>
> Like this: http://wiki.parisc-linux.org/Distributions ?

Might be completely outdated though.

-- 
Thibaut VARENE
http://hacks.slashdirt.org/

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<div dir=3D"ltr"><div class=3D"gmail_extra">On Fri, Apr 19, 2013 at 11:55 P=
M, Rolf Eike Beer <span dir=3D"ltr">&lt;<a href=3D"mailto:eike-kernel@sf-te=
c.de" target=3D"_blank">eike-kernel@sf-tec.de</a>&gt;</span> wrote:<br><div=
 class=3D"gmail_quote">

<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-=
left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;p=
adding-left:1ex"><div class=3D"im">Helge Deller wrote:<br>
&gt; Hello everyone,<br>
&gt;<br>
&gt; During the last few days I&#39;ve invested some time in updating our<b=
r>
&gt; * main website at <a href=3D"http://www.parisc-linux.org" target=3D"_b=
lank">http://www.parisc-linux.org</a> (including news-updates and<br>
&gt; favicon) and the * Wiki at <a href=3D"http://wiki.parisc-linux.org" ta=
rget=3D"_blank">http://wiki.parisc-linux.org</a><br>
&gt;<br>
&gt; As such, we now have some more current documentation about<br>
&gt; * <a href=3D"http://wiki.parisc-linux.org/Debian_Ports_Installation" t=
arget=3D"_blank">http://wiki.parisc-linux.org/Debian_Ports_Installation</a>=
 =C2=A0- How to install<br>
&gt; from Debian-Ports * <a href=3D"http://wiki.parisc-linux.org/Debian_Por=
ts" target=3D"_blank">http://wiki.parisc-linux.org/Debian_Ports</a> - Statu=
s<br>
&gt; about (technical) migration to Debian-Ports, and *<br>
&gt; <a href=3D"http://wiki.parisc-linux.org/TODO" target=3D"_blank">http:/=
/wiki.parisc-linux.org/TODO</a> - current status and TODOs regarding<br>
&gt; infrastructure, debian packages and kernel development.<br>
&gt;<br>
&gt; Feedback and corrections are very much welcome.<br>
&gt; Volunteers to help are even more welcome :-)<br>
<br>
</div>While I understand your focus on Debian, on an official port website =
I would<br>
think that other supported distros should at least be mentioned. And it&#39=
;s not<br>
that hard, as there is only one distro at all that has HPPA support in thei=
r<br>
official tree at all ;)<br><br></blockquote><div style>Like this: <a href=
=3D"http://wiki.parisc-linux.org/Distributions">http://wiki.parisc-linux.or=
g/Distributions</a> ?</div><div style><br></div><div style>Might be complet=
ely outdated though.<br clear=3D"all">

<div><br></div>-- <br>Thibaut VARENE<br><a href=3D"http://hacks.slashdirt.o=
rg/" target=3D"_blank">http://hacks.slashdirt.org/</a>


</div></div></div></div>

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Helge Deller wrote:
> Hello everyone,
>=20
> During the last few days I've invested some time in updating our
> * main website at http://www.parisc-linux.org (including news-updates=
 and
> favicon) and the * Wiki at http://wiki.parisc-linux.org
>=20
> As such, we now have some more current documentation about
> * http://wiki.parisc-linux.org/Debian_Ports_Installation =C2=A0- How =
to install
> from Debian-Ports * http://wiki.parisc-linux.org/Debian_Ports - Statu=
s
> about (technical) migration to Debian-Ports, and *
> http://wiki.parisc-linux.org/TODO - current status and TODOs regardin=
g
> infrastructure, debian packages and kernel development.
>=20
> Feedback and corrections are very much welcome.
> Volunteers to help are even more welcome :-)

While I understand your focus on Debian, on an official port website I =
would=20
think that other supported distros should at least be mentioned. And it=
's not=20
that hard, as there is only one distro at all that has HPPA support in =
their=20
official tree at all ;)

Would that be Gentoo?
Last time I checked the minimal install CD was out of date.
I did manage to get it up and running on my j6750.

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Hi Rolf Eike,

> On Fri, Apr 19, 2013 at 11:55 PM, Rolf Eike Beer <eike-kernel@sf-tec.de <mailto:eike-kernel@sf-tec.de>> wrote:
>     Helge Deller wrote:
>     > Hello everyone,
>     >
>     > During the last few days I've invested some time in updating our
>     > * main website at http://www.parisc-linux.org (including news-updates and
>     > favicon) and the * Wiki at http://wiki.parisc-linux.org
>     >
>     > As such, we now have some more current documentation about
>     > * http://wiki.parisc-linux.org/Debian_Ports_Installation  - How to install
>     > from Debian-Ports * http://wiki.parisc-linux.org/Debian_Ports - Status
>     > about (technical) migration to Debian-Ports, and *
>     > http://wiki.parisc-linux.org/TODO - current status and TODOs regarding
>     > infrastructure, debian packages and kernel development.
>     >
>     > Feedback and corrections are very much welcome.
>     > Volunteers to help are even more welcome :-)
> 
>     While I understand your focus on Debian, on an official port website I would
>     think that other supported distros should at least be mentioned. And it's not
>     that hard, as there is only one distro at all that has HPPA support in their
>     official tree at all ;)

You are absolutely right!
It was not at all my intention to focus on Debian (heck - I'm using Fedora for all my non-PARISC machines only :-)).

So, sorry for forgetting to mention GENTOO LINUX on the website!
I've fixed it now (please wait one hour until the cron job activates the changes).   

FWIW, the parisc Wiki already mentioned Gentoo in various places.

> Like this: http://wiki.parisc-linux.org/Distributions ?

Good link. I referenced that as well.

Helge
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On Sat, 20 Apr 2013 11:51:29 +0800 (HKT)
Brendan Horan <brendanhoran@basstech.net> wrote:

> Would that be Gentoo?
> Last time I checked the minimal install CD was out of date.

The only two ways in which the install CD could be truly "out of date"
is if the kernel and userland tools wouldn't support the new hardware
you wanted to install Gentoo Linux on (like previously unsupported disk
controllers) or if you wanted to install it on a novel filesystem that
the install CD's kernel and tools didn't yet support.

> I did manage to get it up and running on my j6750.

The install CD's version isn't important to the installation but
for the two exceptions mentioned above. Indeed, you might even use a
Debian install CD to do a Gentoo Linux install. The "stage3" tarballs
which contain the actual install base are what is important[1], and they
have been kept up to date quite well. That said, we recently released a
new set of boot images (CD[2] and netboot[3]) with support for
recent hardware, filesystems and (yes!) SMP.


     jer


[1] http://distfiles.gentoo.org/releases/hppa/autobuilds/current-stage3/
[2] http://distfiles.gentoo.org/experimental/hppa/livecd/
[3] http://distfiles.gentoo.org/experimental/hppa/netboot/
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On Sat, 20 Apr 2013 11:51:29 +0800 (HKT)
Brendan Horan <brendanhoran@basstech.net> wrote:

> Would that be Gentoo?
> Last time I checked the minimal install CD was out of date.

The only two ways in which the install CD could be truly "out of date"
is if the kernel and userland tools wouldn't support the new hardware
you wanted to install Gentoo Linux on (like previously unsupported disk
controllers) or if you wanted to install it on a novel filesystem that
the install CD's kernel and tools didn't yet support.


> I did manage to get it up and running on my j6750.

The install CD's version isn't important to the installation but
for the two exceptions mentioned above. Indeed, you might even use a
Debian install CD to do a Gentoo Linux install. The "stage3" tarballs
which contain the actual install base are what is important[1], and they
have been kept up to date quite well. That said, we recently released a
new set of boot images (CD[2] and netboot[3]) with support for
recent hardware, filesystems and (yes!) SMP.


     jer


[1] http://distfiles.gentoo.org/releases/hppa/autobuilds/current-stage3/
[2] http://distfiles.gentoo.org/experimental/hppa/livecd/
[3] http://distfiles.gentoo.org/experimental/hppa/netboot/


I've been using Gentoo for years :) 
So I understand an "older" install CD is still fine:)

Thanks for pointing out the new live cd for me!

Brendan
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Hi, I have an HP C3750 with 875Mhz PA8700+ cpu. I'm currently running
debian lenny with kernel 2.6.26 32 bit. I am trying to compile and run
the last linux kernel, 3.8.7, compiled with 64 bit kernel flag
enabled. The compilation succeed, and with file vmlinux I get:
vmlinux: ELF 64-bit MSB executable, PA-RISC 2.0 (LP64) version 1
(GNU/Linux), statically linked, not stripped

after copying it to /boot partition and rebooted the machine, I
instructed palo to load this new kernel. Unfortunately it doesn't
work, I have a serial console and the last message I see is palo
saying "If this is the last message you see, you may need to switch to
your console...."
On the lcd display of the c3750 I see "bus error". Eventually I had to
do an hard reset and come back to the previous kernel.
I don't know if the problem is because the machine doesn't support 64
bit kernel (although I think it should) or because there's some
misconfiguration in the linux kernel.
Has anybody had a similar experience?
Thanks
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From - Thu Nov 08 21:09:07 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] PARISC: provide __ucmpdi2
Date: Sat, 20 Apr 2013 15:41:06 -0400
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Provide __ucmpdi2 to resolve undefined references in 32 bit builds.

The Debian experimental linux source package (3.8.5-1) build fails  
with the following errors:
...
MODPOST 2016 modules
ERROR: "__ucmpdi2" [fs/btrfs/btrfs.ko] undefined!
ERROR: "__ucmpdi2" [drivers/md/dm-verity.ko] undefined!

The attached patch resolves this problem.  It is based on the s390  
implementation
of ucmpdi2.c.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
---




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diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index 6795dc6..568b2c6 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -120,11 +120,13 @@ extern void __ashrdi3(void);
 extern void __ashldi3(void);
 extern void __lshrdi3(void);
 extern void __muldi3(void);
+extern void __ucmpdi2(void);
 
 EXPORT_SYMBOL(__ashrdi3);
 EXPORT_SYMBOL(__ashldi3);
 EXPORT_SYMBOL(__lshrdi3);
 EXPORT_SYMBOL(__muldi3);
+EXPORT_SYMBOL(__ucmpdi2);
 
 asmlinkage void * __canonicalize_funcptr_for_compare(void *);
 EXPORT_SYMBOL(__canonicalize_funcptr_for_compare);
diff --git a/arch/parisc/lib/Makefile b/arch/parisc/lib/Makefile
index 5f2e690..5651536 100644
--- a/arch/parisc/lib/Makefile
+++ b/arch/parisc/lib/Makefile
@@ -2,6 +2,7 @@
 # Makefile for parisc-specific library files
 #
 
-lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o
+lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o \
+	   ucmpdi2.o
 
 obj-y	:= iomap.o
--- /dev/null	2013-04-18 22:44:06.316000000 -0400
+++ linux/arch/parisc/lib/ucmpdi2.c	2013-04-20 10:50:01.000000000 -0400
@@ -0,0 +1,25 @@
+#include <linux/module.h>
+
+union ull_union {
+	unsigned long long ull;
+	struct {
+		unsigned int high;
+		unsigned int low;
+	} ui;
+};
+
+int __ucmpdi2(unsigned long long a, unsigned long long b)
+{
+	union ull_union au = {.ull = a};
+	union ull_union bu = {.ull = b};
+
+	if (au.ui.high < bu.ui.high)
+		return 0;
+	else if (au.ui.high > bu.ui.high)
+		return 2;
+	if (au.ui.low < bu.ui.low)
+		return 0;
+	else if (au.ui.low > bu.ui.low)
+		return 2;
+	return 1;
+}

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Dave
--
John David Anglin	dave.anglin@bell.net


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Am Samstag 20 April 2013, 15:41:06 schrieb John David Anglin:
> Provide __ucmpdi2 to resolve undefined references in 32 bit builds.
> 
> The Debian experimental linux source package (3.8.5-1) build fails
> with the following errors:
> ...
> MODPOST 2016 modules
> ERROR: "__ucmpdi2" [fs/btrfs/btrfs.ko] undefined!
> ERROR: "__ucmpdi2" [drivers/md/dm-verity.ko] undefined!
> 
> The attached patch resolves this problem.  It is based on the s390
> implementation
> of ucmpdi2.c.
> 
> Signed-off-by: John David Anglin <dave.anglin@bell.net>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>

If this is in 3.8.5 this should also get a Cc:stable@kernel.org

Eike
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From - Thu Nov 08 21:09:07 2018
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On 20-Apr-13, at 3:51 PM, Rolf Eike Beer wrote:

> Am Samstag 20 April 2013, 15:41:06 schrieb John David Anglin:
>> Provide __ucmpdi2 to resolve undefined references in 32 bit builds.
>>
>> The Debian experimental linux source package (3.8.5-1) build fails
>> with the following errors:
>> ...
>> MODPOST 2016 modules
>> ERROR: "__ucmpdi2" [fs/btrfs/btrfs.ko] undefined!
>> ERROR: "__ucmpdi2" [drivers/md/dm-verity.ko] undefined!
>>
>> The attached patch resolves this problem.  It is based on the s390
>> implementation
>> of ucmpdi2.c.
>>
>> Signed-off-by: John David Anglin <dave.anglin@bell.net>
>> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
>> Cc: Helge Deller <deller@gmx.de>
>
> If this is in 3.8.5 this should also get a Cc:stable@kernel.org


It is not in anything.

Dave
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Am Samstag 20 April 2013, 15:52:59 schrieb John David Anglin:
> On 20-Apr-13, at 3:51 PM, Rolf Eike Beer wrote:
> > Am Samstag 20 April 2013, 15:41:06 schrieb John David Anglin:
> >> Provide __ucmpdi2 to resolve undefined references in 32 bit builds.
> >> 
> >> The Debian experimental linux source package (3.8.5-1) build fails
> >> with the following errors:
> >> ...
> >> MODPOST 2016 modules
> >> ERROR: "__ucmpdi2" [fs/btrfs/btrfs.ko] undefined!
> >> ERROR: "__ucmpdi2" [drivers/md/dm-verity.ko] undefined!
> >> 
> >> The attached patch resolves this problem.  It is based on the s390
> >> implementation
> >> of ucmpdi2.c.
> >> 
> >> Signed-off-by: John David Anglin <dave.anglin@bell.net>
> >> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> >> Cc: Helge Deller <deller@gmx.de>
> > 
> > If this is in 3.8.5 this should also get a Cc:stable@kernel.org
> 
> It is not in anything.

The function? Or the error? If the function is missing, i.e. the error will 
happen once enabling e.g. btrfs, in a already released kernel we should get 
this into stable.

Eike
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On 20-Apr-13, at 4:02 PM, Rolf Eike Beer wrote:

> Am Samstag 20 April 2013, 15:52:59 schrieb John David Anglin:
>> On 20-Apr-13, at 3:51 PM, Rolf Eike Beer wrote:
>>> Am Samstag 20 April 2013, 15:41:06 schrieb John David Anglin:
>>>> Provide __ucmpdi2 to resolve undefined references in 32 bit builds.
>>>>
>>>> The Debian experimental linux source package (3.8.5-1) build fails
>>>> with the following errors:
>>>> ...
>>>> MODPOST 2016 modules
>>>> ERROR: "__ucmpdi2" [fs/btrfs/btrfs.ko] undefined!
>>>> ERROR: "__ucmpdi2" [drivers/md/dm-verity.ko] undefined!
>>>>
>>>> The attached patch resolves this problem.  It is based on the s390
>>>> implementation
>>>> of ucmpdi2.c.
>>>>
>>>> Signed-off-by: John David Anglin <dave.anglin@bell.net>
>>>> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
>>>> Cc: Helge Deller <deller@gmx.de>
>>>
>>> If this is in 3.8.5 this should also get a Cc:stable@kernel.org
>>
>> It is not in anything.
>
> The function? Or the error? If the function is missing, i.e. the  
> error will
> happen once enabling e.g. btrfs, in a already released kernel we  
> should get
> this into stable.

The error is probably in all active stable branches given that most  
ports provide the function.
GCC generates a call to __ucmpdi2 if the backend doesn't support  
unsigned 64-bit compares.
Normally, the function is resolved by libgcc.  I have no objection to  
pushing the patch back
but Helge and James usually decide this.

Dave
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Xref: news.gmane.org gmane.linux.ports.arm.kernel:232601 gmane.linux.kernel:1478898 gmane.linux.ports.parisc:4930
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/232601>

Most architectures that define CONFIG_HAVE_DMA=y, have implementations for
both dma_alloc_attrs() and dma_free_attrs().  All achitectures that do
not define CONFIG_HAVE_DMA also have both of these definitions provided by
dma-mapping-broken.h.

Provide a default definition for the archs that define CONFIG_HAVE_DMA=y,
but have no implementation for dma_{alloc,free}_attrs() by simply calling
dma_{alloc,free}_coherent() and throwing away the attrs argument.

Damian Hobson-Garcia (4):
  Provide default implementation for dma_{alloc,free}_attrs on arm64
  Provide default implementation for dma_{alloc,free}_attrs on c6x
  Provide default implementation for dma_{alloc,free}_attrs on parisc
  Provide default implementation for dma_{alloc,free}_attrs on s390

 arch/arm64/include/asm/dma-mapping.h  |    3 +++
 arch/c6x/include/asm/dma-mapping.h    |    3 +++
 arch/parisc/include/asm/dma-mapping.h |    3 +++
 arch/s390/include/asm/dma-mapping.h   |    3 +++
 4 files changed, 12 insertions(+), 0 deletions(-)

-- 
1.7.5.4

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From: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [RFC/PATCH 3/4] parisc: Provide default implementation for dma_{alloc,free}_attrs
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Most architectures that define CONFIG_HAVE_DMA, have implementations for
both dma_alloc_attrs() and dma_free_attrs().  All achitectures that do
not define CONFIG_HAVE_DMA also have both of these definitions provided by
dma-mapping-broken.h.

Add default implementations for these functions on parisc.

Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
---
 arch/parisc/include/asm/dma-mapping.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 106b395..d0eae5f 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -46,6 +46,9 @@ extern struct hppa_dma_ops pcx_dma_ops;
 
 extern struct hppa_dma_ops *hppa_dma_ops;
 
+#define dma_alloc_attrs(d, s, h, f, a) dma_alloc_coherent(d, s, h, f)
+#define dma_free_attrs(d, s, h, f, a) dma_free_coherent(d, s, h, f)
+
 static inline void *
 dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
 		   gfp_t flag)
-- 
1.7.5.4


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From: Will Deacon <will.deacon@arm.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v2] parisc: uaccess: fix compiler warnings caused by __put_user casting
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When targetting 32-bit processors, __put_user emits a pair of stw
instructions for the 8-byte case. If the type of __val is a pointer, the
marshalling code casts it to the wider integer type of u64, resulting
in the following compiler warnings:

  kernel/signal.c: In function 'copy_siginfo_to_user':
  kernel/signal.c:2752:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  kernel/signal.c:2752:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  [...]

This patch fixes the warnings by removing the marshalling code and using
the correct output modifiers in the __put_{user,kernel}_asm64 macros
so that GCC will allocate the right registers without the need to
extract the two words explicitly.

Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---

v1->v2: Put the output modifier on the correct word, so 64-bit put_user
        doesn't end up word-swapped.

 arch/parisc/include/asm/uaccess.h | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 4ba2c93..e0a8235 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -181,30 +181,24 @@ struct exception_data {
 #if !defined(CONFIG_64BIT)
 
 #define __put_kernel_asm64(__val,ptr) do {		    \
-	u64 __val64 = (u64)(__val);			    \
-	u32 hi = (__val64) >> 32;			    \
-	u32 lo = (__val64) & 0xffffffff;		    \
 	__asm__ __volatile__ (				    \
 		"\n1:\tstw %2,0(%1)"			    \
-		"\n2:\tstw %3,4(%1)\n\t"		    \
+		"\n2:\tstw %R2,4(%1)\n\t"		    \
 		ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\
 		ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
+		: "r"(ptr), "r"(__val), "0"(__pu_err) \
 		: "r1");				    \
 } while (0)
 
 #define __put_user_asm64(__val,ptr) do {	    	    \
-	u64 __val64 = (u64)(__val);			    \
-	u32 hi = (__val64) >> 32;			    \
-	u32 lo = (__val64) & 0xffffffff;		    \
 	__asm__ __volatile__ (				    \
 		"\n1:\tstw %2,0(%%sr3,%1)"		    \
-		"\n2:\tstw %3,4(%%sr3,%1)\n\t"		    \
+		"\n2:\tstw %R2,4(%%sr3,%1)\n\t"		    \
 		ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\
 		ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
+		: "r"(ptr), "r"(__val), "0"(__pu_err) \
 		: "r1");				    \
 } while (0)
 
-- 
1.8.0

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From - Thu Nov 08 21:09:07 2018
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From: Graham Gower <graham.gower@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: install medium for c8000 [was Re: PARISC Linux website and status update]
Date: Mon, 22 Apr 2013 22:42:48 +0930
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On 20 April 2013 06:42, Helge Deller <deller@gmx.de> wrote:
> Hello everyone,
>
> During the last few days I've invested some time in updating our
> * main website at http://www.parisc-linux.org (including news-updates and favicon) and the
> * Wiki at http://wiki.parisc-linux.org
>
> As such, we now have some more current documentation about
> * http://wiki.parisc-linux.org/Debian_Ports_Installation  - How to install from Debian-Ports

Hi,

I'm wondering if there is an install iso with a kernel that has
CONFIG_PDC_CONSOLE=y, so that I can install on a c8000. (Or am I
missing something, is there a way to get it to work without this?)

Its kinda annoying if I've got to build a cross toolchain, cross
compile a kernel, tftpboot, nfsroot, etc. in order to put something on
the hard drive.

-Graham
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Xref: news.gmane.org gmane.linux.debian.ports.hppa:6845 gmane.linux.ports.parisc:4934
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On Mon, April 22, 2013 15:12, Graham Gower wrote:
> I'm wondering if there is an install iso with a kernel that has
> CONFIG_PDC_CONSOLE=3Dy, so that I can install on a c8000. (Or am I
> missing something, is there a way to get it to work without this?)
>
> Its kinda annoying if I've got to build a cross toolchain, cross
> compile a kernel, tftpboot, nfsroot, etc. in order to put something on =
the
> hard drive.

AFAIK the C8000s have unsupported serial ports / network card.

Adding a real cheap serial card worked very well for me with the 'latest'
HPPA netinstall iso.

Balint succeeded installing a C8000 by using a USB CD-ROM drive (+
additional serial card).

See threads:

http://lists.debian.org/debian-hppa/2010/05/msg00005.html
http://lists.debian.org/debian-hppa/2010/05/msg00004.html

There are a few more threads from Jan-May 2010 that may contain some
useful information about installing on a C8000.

Hope this helps.

Cheers,
Geert


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Am Montag 22 April 2013, 17:00:07 schrieb Geert Lorang:
> On Mon, April 22, 2013 15:12, Graham Gower wrote:
> > I'm wondering if there is an install iso with a kernel that has
> > CONFIG_PDC_CONSOLE=y, so that I can install on a c8000. (Or am I
> > missing something, is there a way to get it to work without this?)
> > 
> > Its kinda annoying if I've got to build a cross toolchain, cross
> > compile a kernel, tftpboot, nfsroot, etc. in order to put something on the
> > hard drive.
> 
> AFAIK the C8000s have unsupported serial ports / network card.

The network card is an e1000, which has a somewhat weird "checksum" for the 
EEPROM. In newer kernels the driver knows how to handle that. For older 
kernels you need to set the MAC by hand, but otherwise everything is fine.

About the serial I'm not absolutely sure, but I think it worked. The only 
thing I needed to change was to set the console to ttyB0 instead of ttyS0.

Greetings,

Eike
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On 17-Apr-13, at 5:04 PM, Helge Deller wrote:

>>> Have you had a chance to try my patch on a UP machine?  With the  
>>> additional locking,
>>> there's an increased chance that lockups might occur.  That's the  
>>> risk.
>
> Yes, I'm running your patch on a UP (PA8600 CPU) and a SMP (PA8500 I  
> think) machine.
> No lockups until now, only the do_softirq() crashes I mentioned above.

I don't think I should upload my Debian kernel build.  It suffers  
seriously from the do_softirq() crashes.
It gets to the login console and dies either immediately or after I  
hit a carriage return.

[ ok ] Starting Postfix Mail Transport Agent: postfix.

Debian GNU/Linux 7.0 mx3210 ttyS1

mx3210 login: [  235.148000] Backtrace:
[  235.148000]  [<0000000040116878>] do_softirq+0x50/0x68
[  235.148000]  [<0000000040146ad8>] irq_exit+0x60/0x80
[  235.148000]  [<000000004011baf4>] do_cpu_irq_mask+0x214/0x2a0
[  235.148000]  [<0000000040105074>] intr_return+0x0/0x4
[  235.148000]  [<00000000401040c0>] _switch_to_ret+0x0/0xf40
[  235.148000]
[  235.148000]
[  235.148000] Kernel Fault: Code=26 regs=000000007ecf07f0  
(Addr=0000000000000010)
[  235.148000]
[  235.148000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[  235.148000] PSW: 00001000000001000000000000001111 Not tainted
[  235.148000] r00-03  000000000804000f 000000004065c080  
0000000040146728 0000000000000001
[  235.148000] r04-07  000000004080fd00 0000000000000048  
000000000000000a 000000007ecf07c0
[  235.148000] r08-11  0000000040824500 0000000000200040  
0000000000000003 0000000040838d00
[  235.148000] r12-15  0000000040755740 0000000040838500  
0000000040837500 0000000040838d00
[  235.148000] r16-19  0000000040824500 0000000000000100  
0000000000000009 0000000042606b24
[  235.148000] r20-23  ffe0000000000000 0000000042606020  
8000000000000000 000000000000c7e0
[  235.148000] r24-27  0000000000000001 0000000040660200  
000000004065c0c8 000000004080fd00
[  235.148000] r28-31  0000000000000000 000000007ecf07c0  
000000007ecf07f0 0000000001d7f000
[  235.148000] sr00-03  0000000000b16000 0000000000000000  
0000000000000000 0000000000b16000
[  235.148000] sr04-07  0000000000000000 0000000000000000  
0000000000000000 0000000000000000
[  235.148000]
[  235.148000] IASQ: 0000000000000000 0000000000000000 IAOQ:  
00000000401466bc 00000000401466c0
[  235.148000]  IIR: 53820020    ISR: 0000000000000000  IOR:  
0000000000000010
[  235.148000]  CPU:        3   CR30: 000000007ecf0000 CR31:  
ffffffffffffffff
[  235.148000]  ORIG_R28: 0000000000000000
[  235.148000]  IAOQ[0]: __do_softirq+0x144/0x280
[  235.148000]  IAOQ[1]: __do_softirq+0x148/0x280
[  235.148000]  RP(r2): __do_softirq+0x1b0/0x280
[  235.148000] Backtrace:
[  235.148000]  [<0000000040116878>] do_softirq+0x50/0x68
[  235.148000]  [<0000000040146ad8>] irq_exit+0x60/0x80
[  235.148000]  [<000000004011baf4>] do_cpu_irq_mask+0x214/0x2a0
[  235.148000]  [<0000000040105074>] intr_return+0x0/0x4
[  235.148000]  [<00000000401040c0>] _switch_to_ret+0x0/0xf40
[  235.148000]
[  235.148000] Kernel panic - not syncing: Kernel Fault

This reminds me of the two hacks that I once had:

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 3aca9f2..b891626 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -582,6 +582,7 @@ out_eoi:
  void
  handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
  {
+       struct irqaction *action;
         struct irq_chip *chip = irq_desc_get_chip(desc);

         kstat_incr_irqs_this_cpu(irq, desc);
@@ -589,7 +590,9 @@ handle_percpu_irq(unsigned int irq, struct  
irq_desc *desc)
         if (chip->irq_ack)
                 chip->irq_ack(&desc->irq_data);

-       handle_irq_event_percpu(desc, desc->action);
+       action = desc->action;
+       if (action)
+               handle_irq_event_percpu(desc, action);

         if (chip->irq_eoi)
                 chip->irq_eoi(&desc->irq_data);
diff --git a/kernel/softirq.c b/kernel/softirq.c
index ed567ba..0344acb 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -259,7 +259,7 @@ restart:
                 }
                 h++;
                 pending >>= 1;
-       } while (pending);
+       } while (pending && h >= (struct softirq_action *)0x1000);

         local_irq_disable();

In the last, I had decided that we had run off the pending queue.  You  
were going to
ask around about this bug.

Then, I tried to boot twice 2.6.39-rc7+.  Both failed with lockups:

[ ok ] Starting Postfix Mail Transport Agent: postfix.

Debian GNU/Linux 7.0 mx3210 ttyS1

mx3210 login: BUG: soft lockup - CPU#3 stuck for 4278967496s! [swapper/ 
3:0]
Modules linked in: iscsi_tcp libiscsi_tcp libiscsiBUG: soft lockup -  
CPU#2 stuck for 4278967496s! [swapper/2:0]
Modules linked in: iscsi_tcp libiscsi_tcp libiscsi  
scsi_transport_iscsi nfsd exportfs ipv6 ext2 ext3 mbcache jbd dm_mod  
zalon7xx lasi700 53c700 hilkbd sd_mod crc_t10dif sg sr_mod cdrom tg3  
sym53c8xx pata_cmd64x scsi_transport_spi ptp pps_core libata scsi_mod

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  000000ff0804ff0f 000000004074fff0 00000000401255a0  
000000007f0ec190
r04-07  000000004073c7f0 000000007f0ec1f0 0000000000000002  
0000000000000002
r08-11  000000f0f0d08440 0200000000000000 000000000804000e  
00000000407678fc
r12-15  0000000000000041 0000000040826500 0000000040837d00  
0000000040660300
r16-19  fffffff0f0d00b0c 0000000000000004 0000000040826500  
000000000800000e
r20-23  0000000001d75000 000000007f257e00 000000007f7c1cc0  
000000000800000e
r24-27  000000000800000e 0000000000000000 000000004250d748  
000000004073c7f0
r28-31  0000000000000008 000000007f0ec1f0 000000007f0ec220  
0000000040684444
sr00-03  0000000000963000 0000000000963000 0000000000000000  
0000000000963000
sr04-07  0000000000000000 0000000000000000 0000000000000000  
0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401255b4  
00000000401255b8
  IIR: 03c008bc    ISR: 000000004075eff0  IOR: ffffffffc0000000
  CPU:        2   CR30: 000000007f0ec000 CR31: ffffffffffffffff
  ORIG_R28: 000000004060ac30
  IAOQ[0]: cpu_idle+0x8c/0xc0
  IAOQ[1]: cpu_idle+0x90/0xc0
  RP(r2): cpu_idle+0x78/0xc0
Backtrace:
  [<0000000040767ab0>] smp_callin+0x1b8/0x1d8

BUG: soft lockup - CPU#1 stuck for 4278967496s! [swapper/1:0]
Modules linked in: iscsi_tcp libiscsi_tcp libiscsi  
scsi_transport_iscsi nfsd exportfs ipv6 ext2 ext3 mbcache jbd dm_mod  
zalon7xx lasi700 53c700 hilkbd sd_mod crc_t10dif sg sr_mod cdrom tg3  
sym53c8xx pata_cmd64x scsi_transport_spi ptp pps_core libata scsi_mod

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000011001111111100001111 Not tainted
r00-03  000000ff080cff0f 000000004074fff0 00000000401255a0  
000000007f0e4190
r04-07  000000004073c7f0 000000007f0e41f0 0000000000000001  
0000000000000001
r08-11  000000f0f0d08440 0100000000000000 000000000804000e  
00000000407678fc
r12-15  00000000409ba638 00000000409ba638 00000000405ec040  
0000000000000001
r16-19  fffffff0f0d00b0c 000000007eab57a8 0000000040668580  
000000000800000e
r20-23  0000000001d6b000 000000007f257ec0 000000007f7c1cc0  
000000000800000e
r24-27  000000000800000e 0000000000000000 0000000042503748  
000000004073c7f0
r28-31  0000000000000008 000000007f0e41f0 000000007f0e4220  
0000000040684444
sr00-03  0000000000963000 0000000000963000 0000000000000000  
0000000000963000
sr04-07  0000000000000000 0000000000000000 0000000000000000  
0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401255c0  
00000000401255b4
  IIR: 0805025d    ISR: 000000004075eff0  IOR: ffffffffc0000000
  CPU:        1   CR30: 000000007f0e4000 CR31: ffffffffffffffff
  ORIG_R28: 000000004060ac30
  IAOQ[0]: cpu_idle+0x98/0xc0
  IAOQ[1]: cpu_idle+0x8c/0xc0
  RP(r2): cpu_idle+0x78/0xc0
Backtrace:
  [<0000000040767ab0>] smp_callin+0x1b8/0x1d8

BUG: soft lockup - CPU#0 stuck for 4278967497s! [swapper/0:0]
Modules linked in: iscsi_tcp libiscsi_tcp libiscsi  
scsi_transport_iscsi nfsd exportfs ipv6 ext2 ext3 mbcache jbd dm_mod  
zalon7xx lasi700 53c700 hilkbd sd_mod crc_t10dif sg sr_mod cdrom tg3  
sym53c8xx pata_cmd64x scsi_transport_spi ptp pps_core libata scsi_mod

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  000000ff0804ff0f 000000004074fff0 00000000401255a0  
00000000405e82e0
r04-07  000000004073c7f0 00000000405e8340 0000000040691070  
000000004078fb98
r08-11  0000000040691008 00000000424f6100 000000000804000e  
000000004011b244
r12-15  0000000000000fe7 000000004067a768 0000000000000fe6  
0000000000000001
r16-19  00000000f0d00b0c 0000000000000fe7 0000000000000fe6  
000000000800000e
r20-23  0000000001d61000 000000000800000f 000000007f7c1cc0  
000000000800000e
r24-27  000000000800000e 0000000000000000 00000000424f9748  
000000004073c7f0
r28-31  00000000405e8000 00000000405e8340 00000000405e8370  
0000000040684444
sr00-03  0000000000963000 0000000000963000 0000000000000000  
0000000000963000
sr04-07  0000000000000000 0000000000000000 0000000000000000  
0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401255b8  
00000000401255bc
  IIR: 539c0020    ISR: 000000004075eff0  IOR: ffffffffc0000000
  CPU:        0   CR30: 00000000405e8000 CR31: 2001001408940008
  ORIG_R28: 000000004060ac30
  IAOQ[0]: cpu_idle+0x90/0xc0
  IAOQ[1]: cpu_idle+0x94/0xc0
  RP(r2): cpu_idle+0x78/0xc0
Backtrace:
  [<000000004010bc48>] rest_init+0xe0/0xf8
  [<0000000040760f14>] start_kernel+0x7a4/0x7d0
  [<00000000404ec278>] rpc_pipe_ioctl+0xf0/0x118
  [<00000000404adb4c>] ip_mroute_getsockopt+0x84/0x118
  [<000000004048ae10>] udp_ioctl+0x80/0xc8
  [<0000000040486ba0>] raw_sendmsg+0x290/0x8b0
  [<0000000040465998>] do_tcp_getsockopt.isra.21+0x270/0x6c0
  [<0000000040441864>] compat_sys_getsockopt+0x1ec/0x228
  [<00000000404415b0>] compat_sys_setsockopt+0x1d8/0x2a0
  [<0000000040440f00>] cmsghdr_from_user_compat_to_kern+0x2a8/0x2f8
  [<0000000040440a9c>] get_compat_msghdr+0x11c/0x170


  scsi_transport_iscsi nfsd exportfs ipv6 ext2 ext3 mbcache jbd dm_mod  
zalon7xx lasi700 53c700 hilkbd sd_mod crc_t10dif sg sr_mod cdrom tg3  
sym53c8xx pata_cmd64x scsi_transport_spi ptp pps_core libata scsi_mod

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  000000ff0804ff0f 000000004074fff0 00000000401255a0  
000000007f0f0190
r04-07  000000004073c7f0 000000007f0f01f0 0000000000000003  
0000000000000003
r08-11  000000f0f0d08440 0300000000000000 000000000804000e  
00000000407678fc
r12-15  000000004060ac30 000000004071b3b0 0000000000000000  
0000000000000001
r16-19  fffffff0f0d00b0c 000000004074eff0 000000004250f750  
000000000800000e
r20-23  0000000001d7f000 000000000800000f 000000007e2dc0c0  
000000000800000e
r24-27  000000000800000e 0000000000000000 0000000042517748  
000000004073c7f0
r28-31  000000007f0f0000 000000007f0f01f0 000000007f0f0220  
0000000040684444
sr00-03  0000000000aa6000 0000000000000000 0000000000000000  
0000000000aa6000
sr04-07  0000000000000000 0000000000000000 0000000000000000  
0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401255b8  
00000000401255bc
  IIR: 539c0020    ISR: 000000004075eff0  IOR: ffffffffc0000000
  CPU:        3   CR30: 000000007f0f0000 CR31: ffffffffffffffff
  ORIG_R28: 000000004060ac30
  IAOQ[0]: cpu_idle+0x90/0xc0
  IAOQ[1]: cpu_idle+0x94/0xc0
  RP(r2): cpu_idle+0x78/0xc0
Backtrace:
  [<0000000040767ab0>] smp_callin+0x1b8/0x1d8

Since the number of seconds is wrong in the lockup message (e.g., "  
CPU#0 stuck for 4278967497s!"),
it occurred to me that something isn't being initialized properly.   
So, I powered the machine down and
rebooted again.  This time it booted 3.9-rc7+ successfully.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: Graham Gower <graham.gower@gmail.com>
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Subject: Re: install medium for c8000 [was Re: PARISC Linux website and status update]
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On 23 April 2013 01:47, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
> Am Montag 22 April 2013, 17:00:07 schrieb Geert Lorang:
>> On Mon, April 22, 2013 15:12, Graham Gower wrote:
>> > I'm wondering if there is an install iso with a kernel that has
>> > CONFIG_PDC_CONSOLE=y, so that I can install on a c8000. (Or am I
>> > missing something, is there a way to get it to work without this?)
>> >
>> > Its kinda annoying if I've got to build a cross toolchain, cross
>> > compile a kernel, tftpboot, nfsroot, etc. in order to put something on the
>> > hard drive.
>>
>> AFAIK the C8000s have unsupported serial ports / network card.
>
> The network card is an e1000, which has a somewhat weird "checksum" for the
> EEPROM. In newer kernels the driver knows how to handle that. For older
> kernels you need to set the MAC by hand, but otherwise everything is fine.
>
> About the serial I'm not absolutely sure, but I think it worked. The only
> thing I needed to change was to set the console to ttyB0 instead of ttyS0.
>
> Greetings,
>
> Eike

Yes, I understand these issues. I went through the process of doing a
gentoo install a couple of years ago. And I did so without an
additional serial port. It just took ages to figure out getting all
the bits built. I fired up my c8000 again yesterday, but noticed one
of the disks is flakey so I can't log in now.

A PDC_CONSOLE enabled kernel requires no additional serial port, it
works fine over the serial port. But the debian/gentoo install kernels
disable it for some reason. All you need to do is boot without a
keyboard attached, with your serial port set at 9600/n8, you'll get
the PDC stuff come up and be able to 'boot lan'.

But if, like me, you don't have another fast hppa box to build stuff
on, you'll need to:
 - build a cross hppa-linux toolchain
 - build palo bits with native toolchain and the 32bit hppa-linux toolchain
 - build a cross hppa64-linux toolchain
 - cross build a 64 bit kernel with hppa64-linux toolchain
 - smash your kernel and palo together in a lan boot compatible way
 - set up a dhcpd/tftpd/nfsd that all gel together for lan booting
your parisc box.

Needless to say, this can be time consuming and error prone. Which is
why I'm asking...

Does anyone have a PDC_CONSOLE enabled install iso? Or lan bootable image?

-Graham
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From - Thu Nov 08 21:09:07 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] PARISC: Change kunmap macro to static inline function
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Change kunmap macro to static inline function to fix build error  
compiling drivers/base/dma-buf.c.

Without the change, the following error can occur:

   CC      drivers/base/dma-buf.o
/home/dave/debian/linux/linux-3.8.5/drivers/base/dma-buf.c: In  
function 'dma_buf_kunmap':
/home/dave/debian/linux/linux-3.8.5/drivers/base/dma-buf.c:427:46:  
error: macro "kunmap" passed 3 arguments, but takes just 1
/home/dave/debian/linux/linux-3.8.5/drivers/base/dma-buf.c:427:3:  
warning: statement with no effect [-Wunused-value]
make[7]: *** [drivers/base/dma-buf.o] Error 1
make[6]: *** [drivers/base] Error 2
make[5]: *** [drivers] Error 2
make[4]: *** [sub-make] Error 2
make[3]: *** [all] Error 2
make[3]: Leaving directory `/home/dave/debian/linux/linux-3.8.5/debian/ 
build/build_hppa_none_parisc64'

I believe parisc is the only arch to implement kunmap using a macro.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
---


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diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 79f694f..f0e2784 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -140,7 +140,10 @@ static inline void *kmap(struct page *page)
 	return page_address(page);
 }
 
-#define kunmap(page)			kunmap_parisc(page_address(page))
+static inline void kunmap(struct page *page)
+{
+	kunmap_parisc(page_address(page));
+}
 
 static inline void *kmap_atomic(struct page *page)
 {

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Subject: [PATCH] parisc: disable -mlong-calls compiler option for kernel
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commit 87622023a2071f81037c92d34ab20ed062e53ea5
Author: Helge Deller <deller@gmx.de>
Date:   Tue Apr 23 15:59:45 2013 +0200

parisc: disable -mlong-calls compiler option for kernel modules

CONFIG_MLONGCALLS was introduced in commit
ec758f98328da3eb933a25dc7a2eed01ef44d849 to overcome linker issues when linking
huge linux kernels (e.g. with many modules linked in).

But in the kernel module loader there is no support yet for the new
relocation types, which is why modules built with -mlong-calls can't be
loaded.
Furthermore, for modules long calls are not really necessary, since we already use
stub sections which resolve long distance calls.

So, let's just disable this compiler option when compiling kernel
modules.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 01d95e2..c9259b5 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -65,8 +65,10 @@ ifndef CONFIG_FUNCTION_TRACER
 endif
 
 # Use long jumps instead of long branches (needed if your linker fails to
-# link a too big vmlinux executable)
-cflags-$(CONFIG_MLONGCALLS)	+= -mlong-calls
+# link a too big vmlinux executable). Not enabled for building modules.
+ifdef CONFIG_MLONGCALLS
+KBUILD_CFLAGS_KERNEL += -mlong-calls
+endif
 
 # select which processor to optimise for
 cflags-$(CONFIG_PA7100)		+= -march=1.1 -mschedule=7100
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From - Thu Nov 08 21:09:08 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: increase kernel stack size to 32k
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commit e4e1e78facf7565cada909a69c7fb6415b6e7b83
Author: Helge Deller <deller@gmx.de>
Date:   Tue Apr 23 17:19:37 2013 +0200

parisc: increase kernel stack size to 32k

This commit temporarily increases the kernel stack size to 32k to avoid
stack overflows which led to strange and hard-to-debug kernel crashes
all over various kernel components.

The upcoming real fix will implement an own irq stack which should avoid
those crashes without the need for 32k stacks.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index d1fb79a..55335c1 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -40,7 +40,7 @@ struct thread_info {
 
 /* thread information allocation */
 
-#define THREAD_SIZE_ORDER            2
+#define THREAD_SIZE_ORDER            3	/* 32k stack */
 /* Be sure to hunt all references to this down when you change the size of
  * the kernel stack */
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_SIZE_ORDER)
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: use spin_lock_irqsave/spin_unlock_irqrestore for PTE
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From: John David Anglin <dave.anglin@bell.net>

User applications running on SMP kernels have long suffered from instability
and random segmentation faults.  This patch improves the situation although
there is more work to be done.

One of the problems is the various routines in pgtable.h that update page table
entries use different locking mechanisms, or no lock at all (set_pte_at).  This
change modifies the routines to all use the same lock pa_dbit_lock.  This lock
is used for dirty bit updates in the interruption code. The patch also purges
the TLB entries associated with the PTE to ensure that inconsistent values are
not used after the page table entry is updated.  The UP and SMP code are now
identical.

The change also includes a minor update to the purge_tlb_entries function in
cache.c to improve its efficiency.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: Helge Deller <deller@gmx.de> 


diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 7df49fa..d5ad7a6 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -16,6 +16,8 @@
 #include <asm/processor.h>
 #include <asm/cache.h>
 
+extern spinlock_t pa_dbit_lock;
+
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -44,8 +46,11 @@ extern void purge_tlb_entries(struct mm_struct *, unsigned long);
 
 #define set_pte_at(mm, addr, ptep, pteval)                      \
 	do {                                                    \
+		unsigned long flags;				\
+		spin_lock_irqsave(&pa_dbit_lock, flags);	\
 		set_pte(ptep, pteval);                          \
 		purge_tlb_entries(mm, addr);                    \
+		spin_unlock_irqrestore(&pa_dbit_lock, flags);	\
 	} while (0)
 
 #endif /* !__ASSEMBLY__ */
@@ -435,48 +440,46 @@ extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t *);
 
 static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
 {
-#ifdef CONFIG_SMP
+	pte_t pte;
+	unsigned long flags;
+
 	if (!pte_young(*ptep))
 		return 0;
-	return test_and_clear_bit(xlate_pabit(_PAGE_ACCESSED_BIT), &pte_val(*ptep));
-#else
-	pte_t pte = *ptep;
-	if (!pte_young(pte))
+
+	spin_lock_irqsave(&pa_dbit_lock, flags);
+	pte = *ptep;
+	if (!pte_young(pte)) {
+		spin_unlock_irqrestore(&pa_dbit_lock, flags);
 		return 0;
-	set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte));
+	}
+	set_pte(ptep, pte_mkold(pte));
+	purge_tlb_entries(vma->vm_mm, addr);
+	spin_unlock_irqrestore(&pa_dbit_lock, flags);
 	return 1;
-#endif
 }
 
-extern spinlock_t pa_dbit_lock;
-
 struct mm_struct;
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
 	pte_t old_pte;
+	unsigned long flags;
 
-	spin_lock(&pa_dbit_lock);
+	spin_lock_irqsave(&pa_dbit_lock, flags);
 	old_pte = *ptep;
 	pte_clear(mm,addr,ptep);
-	spin_unlock(&pa_dbit_lock);
+	purge_tlb_entries(mm, addr);
+	spin_unlock_irqrestore(&pa_dbit_lock, flags);
 
 	return old_pte;
 }
 
 static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-#ifdef CONFIG_SMP
-	unsigned long new, old;
-
-	do {
-		old = pte_val(*ptep);
-		new = pte_val(pte_wrprotect(__pte (old)));
-	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	unsigned long flags;
+	spin_lock_irqsave(&pa_dbit_lock, flags);
+	set_pte(ptep, pte_wrprotect(*ptep));
 	purge_tlb_entries(mm, addr);
-#else
-	pte_t old_pte = *ptep;
-	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
-#endif
+	spin_unlock_irqrestore(&pa_dbit_lock, flags);
 }
 
 #define pte_same(A,B)	(pte_val(A) == pte_val(B))
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 4b12890..83ded26 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -421,14 +421,11 @@ void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 	/* Note: purge_tlb_entries can be called at startup with
 	   no context.  */
 
-	/* Disable preemption while we play with %sr1.  */
-	preempt_disable();
-	mtsp(mm->context, 1);
 	purge_tlb_start(flags);
+	mtsp(mm->context, 1);
 	pdtlb(addr);
 	pitlb(addr);
 	purge_tlb_end(flags);
-	preempt_enable();
 }
 EXPORT_SYMBOL(purge_tlb_entries);
 
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From: Helge Deller <deller@gmx.de>
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Subject: queued parisc patches on top of kernel 3.9
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Hello everyone,

I've queued up a few patches which I think would be really nice to get
into kernel 3.9 (which isn't that likely since 3.9 is pretty much
closed). Nevertheless, with those patches all my machines have survived
all my tests, including hackbench, using sysrq-t and an load of > 300.

If you want to try, I suggest that you pull the "fixes-3.9-urgent" branch of:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git 

----------------------------------------------------------------
Helge Deller (2):
      parisc: increase kernel stack size to 32k
      parisc: disable -mlong-calls compiler option for kernel modules

John David Anglin (3):
      parisc: Provide __ucmpdi2 to resolve undefined references in 32 bit builds.
      parisc: Change kunmap macro to static inline function
      parisc: use spin_lock_irqsave/spin_unlock_irqrestore for PTE updates

Will Deacon (1):
      parisc: uaccess: fix compiler warnings caused by __put_user casting

 arch/parisc/Makefile                  |  6 +++--
 arch/parisc/include/asm/cacheflush.h  |  5 +++-
 arch/parisc/include/asm/pgtable.h     | 47 +++++++++++++++++++----------------
 arch/parisc/include/asm/thread_info.h |  2 +-
 arch/parisc/include/asm/uaccess.h     | 14 +++--------
 arch/parisc/kernel/cache.c            |  5 +---
 arch/parisc/kernel/parisc_ksyms.c     |  2 ++
 arch/parisc/lib/Makefile              |  3 ++-
 arch/parisc/lib/ucmpdi2.c             | 25 +++++++++++++++++++
 9 files changed, 68 insertions(+), 41 deletions(-)
 create mode 100644 arch/parisc/lib/ucmpdi2.c
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Subject: Re: [PATCH] parisc: increase kernel stack size to 32k
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On 04/23/2013 10:22 PM, Helge Deller wrote:
> commit e4e1e78facf7565cada909a69c7fb6415b6e7b83
> Author: Helge Deller <deller@gmx.de>
> Date:   Tue Apr 23 17:19:37 2013 +0200
> 
> parisc: increase kernel stack size to 32k
> 
> --- a/arch/parisc/include/asm/thread_info.h
> +++ b/arch/parisc/include/asm/thread_info.h
> -#define THREAD_SIZE_ORDER            2
> +#define THREAD_SIZE_ORDER            3	/* 32k stack */

I tested again, and it actually needs to be 64k stacks to not crash any longer.
So, the right temporary fix is:

> +#define THREAD_SIZE_ORDER            4	/* 64k stack */

Will send updated patch soon.

Helge
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This is with 3.9-rc6.

Begin forwarded message:

> From: Paul Martin <pm@debian.org>
> Date: April 24, 2013 7:01:58 AM GMT-04:00
> To: Dave Anglin <dave.anglin@bell.net>, 706050@bugs.debian.org
> Cc: control@bugs.debian.org
> Subject: Re: Bug#706050: logrotate: spurious "error: getting file  
> ACL" messages
>
> tags 706050 pending
> thanks
>
> On Sun, Apr 21, 2013 at 09:49:08AM -0400, Dave Anglin wrote:
>> Installed 3.8.3-3 on system with ext3 file systems without ACL  
>> support.
>> Now get mail with following with following content:
>>
>> /etc/cron.daily/logrotate:
>> error: getting file ACL /var/log/mysql.log: Function not implemented
>> error: getting file ACL /var/log/syslog.1: Function not implemented
>
> [snip]
>
>> Shouldn't these be supressed?
>
> Yes, they should.
>
> The test is
>
>        if ((prev_acl = acl_get_fd(fdcurr)) == NULL) {
>                if (errno != ENOTSUP) {
>                        message(MESS_ERROR, "getting file ACL %s: %s 
> \n",
>                                currLog, strerror(errno));
>
>
> and your kernel is responding with ENOSYS instead.  This contradicts
> the manpage acl_get_fd(3):
>
>     [ENOTSUP]          The file system on which the file identified  
> by fd is
>                        located does not support ACLs, or ACLs are  
> disabled.
>
> Upstream haven't spotted this, so I'll fix the logic in the next  
> upload...
>
> -- 
> Paul Martin <pm@debian.org>
>

--
John David Anglin	dave.anglin@bell.net



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On Sat, Apr 20, 2013 at 9:48 AM, Helge Deller <deller@gmx.de> wrote:
> So, sorry for forgetting to mention GENTOO LINUX on the website!
> I've fixed it now (please wait one hour until the cron job activates the changes).

I'm using Gentoo for all my hppa hacking right now since I wanted to
focus on toolchain issues rather than distribution issues :/

c.
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On 4/24/2013 9:18 AM, Carlos O'Donell wrote:
> On Sat, Apr 20, 2013 at 9:48 AM, Helge Deller <deller@gmx.de> wrote:
>> So, sorry for forgetting to mention GENTOO LINUX on the website!
>> I've fixed it now (please wait one hour until the cron job activates the changes).
> I'm using Gentoo for all my hppa hacking right now since I wanted to
> focus on toolchain issues rather than distribution issues :/
I have to say one learns a lot about toolchain issues building a 
distribution...

Have you played with mysql-5.5?  Testsuite appears to show some
glibc problems (pthread_cond_timedwait).  Thoughts?

Dave

-- 
John David Anglin    dave.anglin@bell.net

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On Wed, 24 Apr 2013 07:27:11 -0400
John David Anglin <dave.anglin@bell.net> wrote:

> > and your kernel is responding with ENOSYS instead.  This contradicts
> > the manpage acl_get_fd(3):

Looks like [1], notified upstream at [2]. We shouldn't be issuing
ENOSYS at all here.


     jer


[1] https://bugs.gentoo.org/show_bug.cgi?id=460702
[2] http://lists.nongnu.org/archive/html/acl-devel/2012-12/msg00000.html
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On Wed, Apr 24, 2013 at 9:48 AM, John David Anglin <dave.anglin@bell.net> wrote:
> On 4/24/2013 9:18 AM, Carlos O'Donell wrote:
>>
>> On Sat, Apr 20, 2013 at 9:48 AM, Helge Deller <deller@gmx.de> wrote:
>>>
>>> So, sorry for forgetting to mention GENTOO LINUX on the website!
>>> I've fixed it now (please wait one hour until the cron job activates the
>>> changes).
>>
>> I'm using Gentoo for all my hppa hacking right now since I wanted to
>> focus on toolchain issues rather than distribution issues :/
>
> I have to say one learns a lot about toolchain issues building a
> distribution...

Absolutely. That doesn't detract from needing a stable environment
to build and test with, which gentoo provides.

> Have you played with mysql-5.5?  Testsuite appears to show some
> glibc problems (pthread_cond_timedwait).  Thoughts?

What glibc version?

We use the generic pthread_cond_timedwait implementation.

The only thought I have is that pthread_cond_timedwait in master
might try to use PI-aware mutexes and we haven't had much testing
of the PI support in hppa. So there might be some issues to review
there. I'll run the mysql-5.5 testsuite to try validate some of the
cleanup I have planned.

Cheers,
Carlos.
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From - Thu Nov 08 21:09:08 2018
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Subject: Gentoo boot on C8000 (was: Re: PARISC Linux website and status update)
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Hi,

[del]
>have been kept up to date quite well. That said, we recently released a
>new set of boot images (CD[2] and netboot[3]) with support for
>recent hardware, filesystems and (yes!) SMP.
>
>
>     jer
>
>
>[1] http://distfiles.gentoo.org/releases/hppa/autobuilds/current-stage3/
>[2] http://distfiles.gentoo.org/experimental/hppa/livecd/
>[3] http://distfiles.gentoo.org/experimental/hppa/netboot/

Tried [2] on my C8000 dual CPU, on a serial line just now:

...
HARD Booted.
<Cpu0> 0000109800e00000  0000000000000000  CC_BOOT_LAUNCH_IPL_OTHR
<Cpu0> 0100142900e00000  fffffff0f0e0ac00  CC_CPU_INTRIGUE_LDB
<Cpu0> 3400082100e00000  0000000000000001  CC_BOOT_BOOT_COMPLETE
palo ipl 1.5 root@hope Sat Apr 23 18:06:47 CEST 2005
...

[    0.000000] Linux version 3.6.11-livecd64 (root@terminator) (gcc version 4.6.3 (Gentoo 4.6.3 p1.9) ) #1 SMP Thu Jan 24 16:09:18 UTC 2013
[    0.000000] unwind_init: start = 0x406ad000, end = 0x406e85e0, entries = 15198
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 000089b0 00000491 00000000 00000002 56fa29f07c511780 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000401
[    0.000000] CPUID vers 20 rev 10 (0x0000028a)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/785/C8000
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000000100000000 End 0x00000001ffdfffff Size   4094 MB
[    0.000000]  2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
[    0.000000] Total Memory: 8190 MB
[    0.000000] initrd: 7fda6000-7ffee9d0
[    0.000000] initrd: reserving 3fda6000-3ffee9d0 (mem_max 1ffe00000)
[    0.000000] PERCPU: Embedded 10 pages/cpu @000000004266e000 s9728 r8192 d23040 u40960
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 2067975
[    0.000000] Kernel command line:  root=/dev/ram0 init=/linuxrc cdroot dokeymap looptype=squashfs loop=/image.squashfs console=ttyB0 palo_kernel=0/livecd
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[    0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.000000] Memory: 8230968k/8386560k available (4846k kernel code, 155592k reserved, 1929k data, 376k init)
[    0.000000] SLUB: Genslabs=11, HWalign=64, Order=0-3, MinObjects=0, CPUs=32, Nodes=8
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS:128
[    0.000000] Console: colour dummy device 160x64
[    0.056000] Calibrating delay loop... 1988.60 BogoMIPS (lpj=3977216)
[    0.156000] pid_max: default: 32768 minimum: 301
[    0.216000] Mount-cache hash table entries: 256
[    0.276000] Brought up 1 CPUs
[    0.316000] xor: measuring software checksum speed
[    0.420000]    8regs     :  4697.000 MB/sec
[    0.512000]    8regs_prefetch:  3504.000 MB/sec
[    0.608000]    32regs    :  3852.000 MB/sec
[    0.700000]    32regs_prefetch:  3552.000 MB/sec
[    0.760000] xor: using function: 8regs (4697.000 MB/sec)
[    0.828000] NET: Registered protocol family 16
[    0.888000] EISA bus registered
[    0.928000] Searching for devices...
[    1.080000] Found devices:
[    1.116000] 1. Crestone Peak Mako+ Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x89b, 0x00004 }
[    1.232000] 2. Crestone Peak Mako+ Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x89b, 0x00004 }
[    1.344000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0b6, 0x00009 }
[    1.436000] 4. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
[    1.544000] 5. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
[    1.652000] 6. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
[    1.760000] 7. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
[    1.868000] 8. Quicksilver AGP Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x784, 0x0000a }
[    1.980000] 9. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
[    2.088000] 10. unknown device at 0xfffffff0f05e0000 [17] { 10, 0x0, 0x076, 0x000ad }
[    2.192000] 11. unknown device at 0xfffffff0f05e2000 [18] { 10, 0x0, 0x076, 0x000ad }
[    2.296000] Enabling PDC_PAT chassis codes support v0.05
<Cpu0> 38000c6400e00000  a0e008101100c000  CC_PAT_ENCODED_FIELD_MAJOR_FWD_PROG
<Cpu0> 36000c6a00e00000  0000000000000420  CC_PAT_DATA_FIELD_MAJOR_FWD_PROG
[    3.228000] Releasing cpu 1 now, hpa=fffffffffe781000
<Cpu1> 0000099101e00000  0000000000000000  CC_BOOT_OS_RENDEZVOUS
<Cpu1> 0100142901e00000  fffffff0f0e0ac00  CC_CPU_INTRIGUE_LDB
[    3.664000] FP[1] enabled: Rev 1 Model 20
[    3.668000] genirq: Flags mismatch irq 64. 00015620 (timer) vs. 00015620 (timer)
[    3.816000] genirq: Flags mismatch irq 65. 00000420 (IPI) vs. 00000420 (IPI)
[    3.924000] CPU(s): 2 x PA8900 (Shortfin) at 1000.000000 MHz
[    4.008000] Setting cache flush threshold to 4000000 (2 CPUs online)
[    4.256000] SBA found Pluto 2.3 at 0xfffffffffed00000
[    4.472000] Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
[    4.616000] LBA 0:0: PCI host bridge to bus 0000:00
[    4.680000] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    4.760000] pci_bus 0000:00: root bus resource [mem 0xffffffff80000000-0
fffff8fffffff] (bus address [0x80000000-0x8fffffff])
[    4.912000] pci_bus 0000:00: root bus resource [mem 0xffffff0000000000-0xffffff0fffffffff]
[    5.024000] pci_bus 0000:00: root bus resource [bus 00-07]
[    5.120000] Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
[    5.264000] LBA 0:2: PCI host bridge to bus 0000:40
[    5.328000] pci_bus 0000:40: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
[    5.448000] pci_bus 0000:40: root bus resource [mem 0xffffffffa0000000-0xffffffffafffffff] (bus address [0xa0000000-0xafffffff])
[    5.600000] pci_bus 0000:40: root bus resource [mem 0xffffff2000000000-0xffffff2fffffffff]
[    5.708000] pci_bus 0000:40: root bus resource [bus 40-47]
[    5.804000] Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
[    5.948000] LBA 0:3: PCI host bridge to bus 0000:60
[    6.016000] pci_bus 0000:60: root bus resource [io  0x20000-0x2ffff] (bus address [0x0000-0xffff])
[    6.132000] pci_bus 0000:60: root bus resource [mem 0xffffffffb0000000-0xffffffffbfffffff] (bus address [0xb0000000-0xbfffffff])
[    6.284000] pci_bus 0000:60: root bus resource [mem 0xffffff3000000000-0xffffff3fffffffff]
[    6.396000] pci_bus 0000:60: root bus resource [bus 60-67]
[    6.492000] Quicksilver version TR1.0 (0x10) found at 0xfffffffffed28000
[    6.640000] LBA 0:4: PCI host bridge to bus 0000:80
[    6.708000] pci_bus 0000:80: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0xffff])
[    6.824000] pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffcfffffff] (bus address [0xc0000000-0xcfffffff])
[    6.976000] pci_bus 0000:80: root bus resource [mem 0xffffff4000000000-0xffffff4fffffffff]
[    7.084000] pci_bus 0000:80: root bus resource [bus 80-87]
[    7.160000] pci 0000:80:00.0: no compatible bridge window for [mem 0xd0030000-0xd003ffff]
[    7.268000] pci 0000:80:00.0: no compatible bridge window for [mem 0xd0000000-0xd001ffff pref]
[    7.380000] pci 0000:80:00.1: no compatible bridge window for [mem 0xd0020000-0xd002ffff]
[    7.488000] iosapic: no IRTE for 0000:80:00.1 (IRQ not connected?)
[    7.568000] pci 0000:80:00.0: BAR 6: assigned [mem 0xffffff4000000000-0xffffff400001ffff pref]
[    7.684000] pci 0000:80:00.0: BAR 2: assigned [mem 0xffffff4000020000-0xffffff400002ffff]
[    7.792000] pci 0000:80:00.1: BAR 1: assigned [mem 0xffffff4000030000-0xffffff400003ffff]
<Cpu0> 0300108200e00000  0000000000000000  CC_PROCS_ENTRY_IN
<Cpu0> 0300030700e00000  0000000000000000  CC_SYSTEM_STATE_RUNNING_OK
[    8.304000] powersw: Soft power switch at 0xfffffff0f042e278 enabled.
[    8.400000] bio: create slab <bio-0> at 0
[    8.520000] raid6: int64x1    988 MB/s
[    8.636000] raid6: int64x2   1207 MB/s
[    8.752000] raid6: int64x4   1342 MB/s
[    8.868000] raid6: int64x8   1270 MB/s
[    8.916000] raid6: using algorithm int64x4 (1342 MB/s)
[    8.984000] raid6: using intx1 recovery algorithm
[    9.044000] vgaarb: device added: PCI:0000:80:00.0,decodes=io+mem,owns=io+mem,locks=none
[    9.152000] vgaarb: loaded
[    9.188000] vgaarb: bridge control possible 0000:80:00.0
[    9.260000] SCSI subsystem initialized
[    9.308000] usbcore: registered new interface driver usbfs
[    9.380000] usbcore: registered new interface driver hub
[    9.452000] usbcore: registered new device driver usb
[    9.524000] NET: Registered protocol family 2
[    9.584000] TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
[    9.684000] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    9.776000] TCP: Hash tables configured (established 262144 bind 65536)
[    9.860000] TCP: reno registered
[    9.684000] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    9.776000] TCP: Hash tables configured (established 262144 bind 65536)
[    9.860000] TCP: reno registered
[    9.904000] UDP hash table entries: 4096 (order: 5, 131072 bytes)
[    9.984000] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes)
[   10.072000] NET: Registered protocol family 1
[   10.204000] Unpacking initramfs...
[   11.540000] Freeing initrd memory: 2338k freed
[   11.600000] The PDC console driver is still registered, removing CON_BOOT flag
[   11.696000] Chassis warnings not supported.
[   11.752000] Performance monitoring counters enabled for Crestone Peak Mako+ Slow
[   11.860000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[   11.960000] msgmni has been set to 16080
[   12.012000] io scheduler noop registered
[   12.064000] io scheduler deadline registered
[   12.120000] io scheduler cfq registered (default)
[   12.184000] STI GSC/PCI core graphics driver Version 0.9a
[   12.256000] radeonfb 0000:80:00.0: enabling SERR and PARITY (0107 -> 0147)
<Cpu1> e800009801e00000  00000000401173e8  CC_ERR_CHECK_HPMC
<Cpu1> 37000f7301e00000  8040004000000000  CC_ERR_CPU_CHECK_SUMMARY
<Cpu1> f600105e01e00000  fffffff0f0c00000  CC_MC_HPMC_MONARCH_SELECTED
<Cpu1> 140003b201e00000  000000000000000b  CC_ERR_HPMC_STATE_ENTRY
<Cpu1> 5600100b01e00000  0000000000000194  CC_MC_OS_HPMC_LEN_ERR
<Cpu1> 5600106401e00000  fffffff0f0436fc0  CC_MC_BR_TO_OS_HPMC_FAILED
<Cpu1> e800009801e00000  00000000401173e8  CC_ERR_CHECK_HPMC
<Cpu0> ec000c9600e00000  0000000000000000  CC_ERR_CHECK_FALL_THROUGH
<Cpu1> 37000f7301e00000  8040004000000000  CC_ERR_CPU_CHECK_SUMMARY
<Cpu1> 4000109f01e00000  0000000000000000  CC_MC_HPMC_INITIATED
<Cpu1> 4000101901e00000  0000000000000000  CC_MC_MULTIPLE_HPMCS
<Cpu1> 030010d501e00000  0000000000000000  CC_CPU_STOP
[   72.356000] INFO: rcu_sched detected stalls on CPUs/tasks: { 1} (detected by 0, t=15002 jiffies)
[   72.356000] Backtrace:
[   72.356000]  [<0000000040136238>] dump_stack+0x18/0x28
[   72.356000]  [<00000000401badec>] rcu_check_callbacks+0x824/0x840
[   72.356000]  [<000000004016c6fc>] update_process_times+0x64/0xb0
[   72.356000]  [<00000000401378c8>] timer_interrupt+0x198/0x1f8
[   72.356000]  [<00000000401b1c4c>] handle_irq_event_percpu+0xbc/0x2f8
[   72.356000]  [<00000000401b62ec>] handle_percpu_irq+0x9c/0xd0
[   72.356000]  [<00000000401b10b4>] generic_handle_irq+0x44/0x58
[   72.356000]  [<000000004013839c>] do_cpu_irq_mask+0x1ac/0x290
[   72.356000]  [<0000000040105074>] intr_return+0x0/0x4
[   72.356000]  [<000000004013f428>] cpu_idle+0x80/0xb0

And that's it. Well, the ISO *is* an experimental one ;-) Any idea what
to try?

CU,
Uli
-- 
Dipl. Inf. Ulrich Teichert|e-mail: Ulrich.Teichert@gmx.de | Listening to:
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From - Thu Nov 08 21:09:08 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: Gentoo boot on C8000 (was: Re: PARISC Linux website and status update)
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Am Mittwoch 24 April 2013, 21:44:52 schrieb Ulrich Teichert:
> Hi,
>=20
> [del]
>=20
> >have been kept up to date quite well. That said, we recently release=
d a
> >new set of boot images (CD[2] and netboot[3]) with support for
> >recent hardware, filesystems and (yes!) SMP.
> >
> >     jer
> >
> >[1] http://distfiles.gentoo.org/releases/hppa/autobuilds/current-sta=
ge3/
> >[2] http://distfiles.gentoo.org/experimental/hppa/livecd/
> >[3] http://distfiles.gentoo.org/experimental/hppa/netboot/
>=20
> Tried [2] on my C8000 dual CPU, on a serial line just now:
>=20
> ...
> HARD Booted.
> <Cpu0> 0000109800e00000  0000000000000000  CC_BOOT_LAUNCH_IPL_OTHR
> <Cpu0> 0100142900e00000  fffffff0f0e0ac00  CC_CPU_INTRIGUE_LDB
> <Cpu0> 3400082100e00000  0000000000000001  CC_BOOT_BOOT_COMPLETE
> palo ipl 1.5 root@hope Sat Apr 23 18:06:47 CEST 2005
> ...
>=20
> [    0.000000] Kernel command line:  root=3D/dev/ram0
> init=3D/linuxrc cdroot dokeymap looptype=3Dsquashfs loop=3D/image.squ=
ashfs
> console=3DttyB0 palo_kernel=3D0/livecd
[=E2=80=A6]
> [   12.256000] radeonfb 0000:80:00.0: enabling SERR and PARITY (0107 =
->
> 0147) <Cpu1> e800009801e00000  00000000401173e8  CC_ERR_CHECK_HPMC
> <Cpu1> 37000f7301e00000  8040004000000000  CC_ERR_CPU_CHECK_SUMMARY
> <Cpu1> f600105e01e00000  fffffff0f0c00000  CC_MC_HPMC_MONARCH_SELECTE=
D
> <Cpu1> 140003b201e00000  000000000000000b  CC_ERR_HPMC_STATE_ENTRY
> <Cpu1> 5600100b01e00000  0000000000000194  CC_MC_OS_HPMC_LEN_ERR
> <Cpu1> 5600106401e00000  fffffff0f0436fc0  CC_MC_BR_TO_OS_HPMC_FAILED=

> <Cpu1> e800009801e00000  00000000401173e8  CC_ERR_CHECK_HPMC
> <Cpu0> ec000c9600e00000  0000000000000000  CC_ERR_CHECK_FALL_THROUGH
> <Cpu1> 37000f7301e00000  8040004000000000  CC_ERR_CPU_CHECK_SUMMARY
> <Cpu1> 4000109f01e00000  0000000000000000  CC_MC_HPMC_INITIATED
> <Cpu1> 4000101901e00000  0000000000000000  CC_MC_MULTIPLE_HPMCS
> <Cpu1> 030010d501e00000  0000000000000000  CC_CPU_STOP
> [   72.356000] INFO: rcu_sched detected stalls on CPUs/tasks: { 1} (d=
etected
> by 0, t=3D15002 jiffies) [   72.356000] Backtrace:
> [   72.356000]  [<0000000040136238>] dump_stack+0x18/0x28
> [   72.356000]  [<00000000401badec>] rcu_check_callbacks+0x824/0x840
> [   72.356000]  [<000000004016c6fc>] update_process_times+0x64/0xb0
> [   72.356000]  [<00000000401378c8>] timer_interrupt+0x198/0x1f8
> [   72.356000]  [<00000000401b1c4c>] handle_irq_event_percpu+0xbc/0x2=
f8
> [   72.356000]  [<00000000401b62ec>] handle_percpu_irq+0x9c/0xd0
> [   72.356000]  [<00000000401b10b4>] generic_handle_irq+0x44/0x58
> [   72.356000]  [<000000004013839c>] do_cpu_irq_mask+0x1ac/0x290
> [   72.356000]  [<0000000040105074>] intr_return+0x0/0x4
> [   72.356000]  [<000000004013f428>] cpu_idle+0x80/0xb0
>=20
> And that's it. Well, the ISO *is* an experimental one ;-) Any idea wh=
at
> to try?

video=3Dradeonfb:off

HTH,

Eike
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From - Thu Nov 08 21:09:09 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Gentoo boot on C8000 (was: Re: PARISC Linux website and status
 update)
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Cc: Ulrich Teichert <krypton@ulrich-teichert.org>,
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 4/24/2013 4:08 PM, Rolf Eike Beer wrote:
> Am Mittwoch 24 April 2013, 21:44:52 schrieb Ulrich Teichert:
>> Hi,
>>
>> [del]
>>
>>> have been kept up to date quite well. That said, we recently releas=
ed a
>>> new set of boot images (CD[2] and netboot[3]) with support for
>>> recent hardware, filesystems and (yes!) SMP.
>>>
>>>      jer
>>>
>>> [1] http://distfiles.gentoo.org/releases/hppa/autobuilds/current-st=
age3/
>>> [2] http://distfiles.gentoo.org/experimental/hppa/livecd/
>>> [3] http://distfiles.gentoo.org/experimental/hppa/netboot/
>> Tried [2] on my C8000 dual CPU, on a serial line just now:
>>
>> ...
>> HARD Booted.
>> <Cpu0> 0000109800e00000  0000000000000000  CC_BOOT_LAUNCH_IPL_OTHR
>> <Cpu0> 0100142900e00000  fffffff0f0e0ac00  CC_CPU_INTRIGUE_LDB
>> <Cpu0> 3400082100e00000  0000000000000001  CC_BOOT_BOOT_COMPLETE
>> palo ipl 1.5 root@hope Sat Apr 23 18:06:47 CEST 2005
>> ...
>>
>> [    0.000000] Kernel command line:  root=3D/dev/ram0
>> init=3D/linuxrc cdroot dokeymap looptype=3Dsquashfs loop=3D/image.sq=
uashfs
>> console=3DttyB0 palo_kernel=3D0/livecd
> [=E2=80=A6]
>> [   12.256000] radeonfb 0000:80:00.0: enabling SERR and PARITY (0107=
 ->
>> 0147) <Cpu1> e800009801e00000  00000000401173e8  CC_ERR_CHECK_HPMC
>> <Cpu1> 37000f7301e00000  8040004000000000  CC_ERR_CPU_CHECK_SUMMARY
>> <Cpu1> f600105e01e00000  fffffff0f0c00000  CC_MC_HPMC_MONARCH_SELECT=
ED
>> <Cpu1> 140003b201e00000  000000000000000b  CC_ERR_HPMC_STATE_ENTRY
>> <Cpu1> 5600100b01e00000  0000000000000194  CC_MC_OS_HPMC_LEN_ERR
>> <Cpu1> 5600106401e00000  fffffff0f0436fc0  CC_MC_BR_TO_OS_HPMC_FAILE=
D
>> <Cpu1> e800009801e00000  00000000401173e8  CC_ERR_CHECK_HPMC
>> <Cpu0> ec000c9600e00000  0000000000000000  CC_ERR_CHECK_FALL_THROUGH
>> <Cpu1> 37000f7301e00000  8040004000000000  CC_ERR_CPU_CHECK_SUMMARY
>> <Cpu1> 4000109f01e00000  0000000000000000  CC_MC_HPMC_INITIATED
>> <Cpu1> 4000101901e00000  0000000000000000  CC_MC_MULTIPLE_HPMCS
>> <Cpu1> 030010d501e00000  0000000000000000  CC_CPU_STOP
>> [   72.356000] INFO: rcu_sched detected stalls on CPUs/tasks: { 1} (=
detected
>> by 0, t=3D15002 jiffies) [   72.356000] Backtrace:
>> [   72.356000]  [<0000000040136238>] dump_stack+0x18/0x28
>> [   72.356000]  [<00000000401badec>] rcu_check_callbacks+0x824/0x840
>> [   72.356000]  [<000000004016c6fc>] update_process_times+0x64/0xb0
>> [   72.356000]  [<00000000401378c8>] timer_interrupt+0x198/0x1f8
>> [   72.356000]  [<00000000401b1c4c>] handle_irq_event_percpu+0xbc/0x=
2f8
>> [   72.356000]  [<00000000401b62ec>] handle_percpu_irq+0x9c/0xd0
>> [   72.356000]  [<00000000401b10b4>] generic_handle_irq+0x44/0x58
>> [   72.356000]  [<000000004013839c>] do_cpu_irq_mask+0x1ac/0x290
>> [   72.356000]  [<0000000040105074>] intr_return+0x0/0x4
>> [   72.356000]  [<000000004013f428>] cpu_idle+0x80/0xb0
>>
>> And that's it. Well, the ISO *is* an experimental one ;-) Any idea w=
hat
>> to try?
> video=3Dradeonfb:off

I think this is a thread stack overrun.  See this patch:
http://www.spinics.net/lists/linux-parisc/msg04680.html
but increase THREAD_SIZE_ORDER to 4.

There are various manifestations of this but they all involve crashes=20
during interrupt handling.

Dave

--=20
John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:09:09 2018
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Cc: Helge Deller <deller@gmx.de>,
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	linux-parisc <linux-parisc@vger.kernel.org>
To: Carlos O'Donell <carlos@systemhalted.org>
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On 4/24/2013 3:33 PM, Carlos O'Donell wrote:
> On Wed, Apr 24, 2013 at 9:48 AM, John David Anglin <dave.anglin@bell.net> wrote:
>> On 4/24/2013 9:18 AM, Carlos O'Donell wrote:
>>> On Sat, Apr 20, 2013 at 9:48 AM, Helge Deller <deller@gmx.de> wrote:
>>>> So, sorry for forgetting to mention GENTOO LINUX on the website!
>>>> I've fixed it now (please wait one hour until the cron job activates the
>>>> changes).
>>> I'm using Gentoo for all my hppa hacking right now since I wanted to
>>> focus on toolchain issues rather than distribution issues :/
>> I have to say one learns a lot about toolchain issues building a
>> distribution...
> Absolutely. That doesn't detract from needing a stable environment
> to build and test with, which gentoo provides.
In my opinion, debian unstable is now "stable".  Probably, this is 
because it has been
pretty much frozen except for bug fixes for several months.  It taken 
many months but
the SMP stability problems are pretty much fixed.  Helge's machine was 
running stably
at a load average of ~250 in hackbench testing.  It used to crash reliably.

It is great that gentoo supported users through a rocky period.
>
>> Have you played with mysql-5.5?  Testsuite appears to show some
>> glibc problems (pthread_cond_timedwait).  Thoughts?
> What glibc version?
Debian 2.13-38.  Nothing much has changed since your patches were 
integrated.
Kernel was 3.9-r7+.
>
> We use the generic pthread_cond_timedwait implementation.
>
> The only thought I have is that pthread_cond_timedwait in master
> might try to use PI-aware mutexes and we haven't had much testing
> of the PI support in hppa. So there might be some issues to review
> there. I'll run the mysql-5.5 testsuite to try validate some of the
> cleanup I have planned.
That would be great.

Dave

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On Wed, 2013-04-24 at 09:33 +0200, Helge Deller wrote:
> On 04/23/2013 10:22 PM, Helge Deller wrote:
> > commit e4e1e78facf7565cada909a69c7fb6415b6e7b83
> > Author: Helge Deller <deller@gmx.de>
> > Date:   Tue Apr 23 17:19:37 2013 +0200
> > 
> > parisc: increase kernel stack size to 32k
> > 
> > --- a/arch/parisc/include/asm/thread_info.h
> > +++ b/arch/parisc/include/asm/thread_info.h
> > -#define THREAD_SIZE_ORDER            2
> > +#define THREAD_SIZE_ORDER            3	/* 32k stack */
> 
> I tested again, and it actually needs to be 64k stacks to not crash any longer.
> So, the right temporary fix is:
> 
> > +#define THREAD_SIZE_ORDER            4	/* 64k stack */
> 
> Will send updated patch soon.

This is an indicator of something seriously wrong somewhere.  We've
always had the 16k stack just because of our large frames.  In theory,
the IRQ stack should only be the same size as the kernel stack, so if we
have both in the same place, we should only need at max 32k ... if we're
still seeing problems related to stack overrun, then it might be we have
an IRQ recursion where we shouldn't have.  To be honest, I have a hard
time explaining why our stacks should be over 8k.

James


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From: Graham Gower <graham.gower@gmail.com>
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Subject: Re: Gentoo boot on C8000 (was: Re: PARISC Linux website and status update)
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On 25 April 2013 05:58, John David Anglin <dave.anglin@bell.net> wrote:
> On 4/24/2013 4:08 PM, Rolf Eike Beer wrote:
>>
>> video=radeonfb:off
>
>
> I think this is a thread stack overrun.  See this patch:
> http://www.spinics.net/lists/linux-parisc/msg04680.html
> but increase THREAD_SIZE_ORDER to 4.
>
> There are various manifestations of this but they all involve crashes during
> interrupt handling.

I get the same bug with radeonfb on my c8000. Bumping
THREAD_SIZE_ORDER did not help. Passing the video=radeonfb:off kernel
parameter is an effective workaround.

When building as a module and later loading radeonfb.ko, the hang
remains but the machine responds to ping. I snapped the output below,
which hopefully helps someone. I'm using a stock kernel 3.8.8.

-Graham

burke:~# modprobe radeonfb
[  403.888000] radeonfb 0000:80:00.0: enabling SERR and PARITY (0107 -> 0147)
[  463.712000] INFO: rcu_sched detected stalls on CPUs/tasks: { 3}
(detected by 1, t=15021 jiffies, g=3107, c=3106, q=27)
[  463.856000] Task dump for CPU 3:
[  463.896000] modprobe        R  running task        0  2822   2815 0x00000016
[  463.992000] Backtrace:
[  464.024000]  [<00000000403ca6a8>] __driver_attach+0x100/0x108
[  464.100000]  [<00000000403c7940>] bus_for_each_dev+0x98/0xf8
[  464.172000]  [<00000000403c9c70>] driver_attach+0x28/0x38
[  464.244000]  [<00000000403c9534>] bus_add_driver+0xfc/0x360
[  464.320000]  [<00000000403cad58>] driver_register+0x90/0x1e8
[  464.396000]  [<000000004036a628>] __pci_register_driver+0x48/0x58
[  464.476000]  [<000000001029f04c>] radeonfb_init+0x2c/0x38 [radeonfb]
[  464.560000]  [<0000000040117524>] do_one_initcall+0x18c/0x1e8
[  464.636000]  [<0000000040193998>] load_module+0x1cf0/0x2298
[  464.708000]  [<0000000040194018>] sys_init_module+0xd8/0x110
[  464.784000]  [<0000000040105f48>] syscall_exit+0x0/0x14
[  464.852000]
[  464.872000] timer_interrupt(CPU 1): delayed! cycles 4BEAD5A6 rem
23615A  next/now 8B58E727CD/8B58C3C673
[  476.324000] BUG: soft lockup - CPU#0 stuck for 22s! [sshd:2766]
[  476.324000] Modules linked in: radeonfb(+) i2c_algo_bit fb_ddc
snd_cmipci snd_mpu401_uart snd_opl3_lib snd_hwdep snd_rawmidi
snd_seq_device snd_pcm snd_page_alloc snd_timer snd soundcore
[  476.324000]
[  476.324000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[  476.324000] PSW: 00001000000001101111111100001111 Not tainted
[  476.324000] r00-03  000000ff0806ff0f 0000000040820370
000000004018e7d0 000000004073def0
[  476.324000] r04-07  000000004080f370 0000000043626500
00000000406ac1c0 0000000000000001
[  476.324000] r08-11  0000000000000003 0000000040706c70
fffffffffffffffe 00000000407b1890
[  476.324000] r12-15  0000000000000000 00000000406c8540
0000000000000000 000000004075e624
[  476.324000] r16-19  000000007ecea428 0000000000080140
0000000000068848 fffffffffe799000
[  476.324000] r20-23  ffffffffffffffff 0000000043626530
000000000800000f 0000000000000001
[  476.324000] r24-27  0000000000000004 0000000000000004
0000000043626538 000000004080f370
[  476.324000] r28-31  0000000000000001 000000007e140740
000000007e1406a0 0000000000000004
[  476.324000] sr00-03  000000000062d800 0000000000000000
0000000000000000 000000000062d800
[  476.324000] sr04-07  0000000000000000 0000000000000000
0000000000000000 0000000000000000
[  476.324000]
[  476.324000] IASQ: 0000000000000000 0000000000000000 IAOQ:
000000004018e69c 000000004018e6a0
[  476.324000]  IIR: 44bc0040    ISR: 00000000406b7940  IOR: 000000004080f370
[  476.324000]  CPU:        0   CR30: 000000007e140000 CR31: fffffff0f0e034e0
[  476.324000]  ORIG_R28: 0000000000000002
[  476.324000]  IAOQ[0]: smp_call_function_many+0x344/0x3d8
[  476.324000]  IAOQ[1]: smp_call_function_many+0x348/0x3d8
[  476.324000]  RP(r2): on_each_cpu+0x50/0x90
[  476.324000] Backtrace:
[  476.324000]  [<000000004018e7d0>] on_each_cpu+0x50/0x90
[  476.324000]  [<0000000040119aec>] flush_cache_mm+0x24/0x30
[  476.324000]  [<000000004013d158>] dup_mm+0x118/0x5e8
[  476.324000]  [<000000004013e0ec>] copy_process.part.63+0xa24/0x1488
[  476.324000]
[  476.324000] Kernel panic - not syncing: softlockup: hung tasks
[  476.324000] Backtrace:
[  476.324000]  [<000000004011a0f0>] dump_stack+0x18/0x28
[  476.324000]  [<000000004013fbd8>] panic+0x128/0x398
[  476.324000]  [<000000004019af98>] watchdog_timer_fn+0x2b0/0x2c8
[  476.324000]  [<000000004016c714>] hrtimer_run_queues+0x134/0x320
[  476.324000]  [<0000000040151af4>] update_process_times+0x4c/0xc0
[  476.324000]  [<000000004011b7bc>] timer_interrupt+0x19c/0x200
[  476.324000]  [<000000004019bfa4>] handle_irq_event_percpu+0xac/0x300
[  476.324000]  [<00000000401a08f0>] handle_percpu_irq+0xa8/0xe0
[  476.324000]  [<000000004019b3f0>] generic_handle_irq+0x40/0x50
[  476.324000]  [<000000004011c320>] do_cpu_irq_mask+0x1d0/0x2b8
[  476.324000]  [<0000000040105074>] intr_return+0x0/0x4
[  476.324000]
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On Wed, Apr 24, 2013 at 1:08 PM, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
> video=radeonfb:off

Has anyone tried with kernel modesetting?

It seems immensely more interesting than radeonfb.
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On 04/25/2013 02:59 PM, Matt Turner wrote:
> On Wed, Apr 24, 2013 at 1:08 PM, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
>> video=radeonfb:off
> 
> Has anyone tried with kernel modesetting?
> 
> It seems immensely more interesting than radeonfb.
> --
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> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

Looks rather similar.

burke:~# modprobe radeon
[  489.408000] [drm] radeon defaulting to kernel modesetting.
[  489.480000] [drm] radeon kernel modesetting enabled.
[  489.548000] radeon 0000:80:00.0: enabling SERR and PARITY (0107 -> 0147)
[  489.716000] [drm] initializing kernel modesetting (R420 0x1002:0x4A4D 0x1002:0x4A4D).
[  489.860000] [drm] register mmio base: 0x00020000
[  489.920000] [drm] register mmio size: 65536
[  531.016000] BUG: soft lockup - CPU#3 stuck for 22s! [bash:2745]
[  531.092000] Modules linked in: radeon(+) cfbfillrect cfbimgblt cfbcopyarea i2c_algo_bit drm_kms_helper ttm drm parisc_agp agpgart
[  531.248000] 
[  531.268000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[  531.332000] PSW: 00001000000001101111111000001111 Not tainted
[  531.408000] r00-03  000000ff0806fe0f 00000000407a78d0 000000004018e790 00000000406cd0f0
[  531.512000] r04-07  00000000407980d0 00000000435c2500 00000000406401c0 0000000000000001
[  531.620000] r08-11  0000000000000003 000000004069aaf0 fffffffffffffff7 0000000040740bd0
[  531.724000] r12-15  0000000000000000 000000004065c540 0000000000000000 00000000406ee624
[  531.828000] r16-19  000000007e0946e8 00000000000fb648 00000000000f6c78 0000000000000000
[  531.936000] r20-23  ffffffffffffffff 00000000435c2530 000000000800000f 0000000000000001
[  532.040000] r24-27  0000000000000003 0000000000000004 00000000435c2538 00000000407980d0
[  532.148000] r28-31  0000000000000001 000000007e050740 000000007e0506a0 0000000000000004
[  532.252000] sr00-03  0000000000658000 0000000000000000 0000000000000000 0000000000658000
[  532.360000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[  532.464000] 
[  532.484000] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004018e65c 000000004018e660
[  532.596000]  IIR: 44bc0040    ISR: 000000004064b940  IOR: 000000007f881438
[  532.688000]  CPU:        3   CR30: 000000007e050000 CR31: fffffff0f0e034e0
[  532.776000]  ORIG_R28: 0000000000000002
[  532.828000]  IAOQ[0]: smp_call_function_many+0x344/0x3d8
[  532.896000]  IAOQ[1]: smp_call_function_many+0x348/0x3d8
[  532.968000]  RP(r2): on_each_cpu+0x50/0x90
[  533.020000] Backtrace:
[  533.052000]  [<000000004018e790>] on_each_cpu+0x50/0x90
[  533.120000]  [<0000000040119aac>] flush_cache_mm+0x24/0x30
[  533.196000]  [<000000004013d118>] dup_mm+0x118/0x5e8
[  533.260000]  [<000000004013e0ac>] copy_process.part.63+0xa24/0x1488
[  533.344000] 
[  533.364000] Kernel panic - not syncing: softlockup: hung tasks
[  533.440000] Backtrace:
[  533.472000]  [<000000004011a0b0>] dump_stack+0x18/0x28
[  533.540000]  [<000000004013fb98>] panic+0x128/0x398
[  533.604000]  [<000000004019af58>] watchdog_timer_fn+0x2b0/0x2c8
[  533.680000]  [<000000004016c6d4>] hrtimer_run_queues+0x134/0x320
[  533.760000]  [<0000000040151ab4>] update_process_times+0x4c/0xc0
[  533.840000]  [<000000004011b77c>] timer_interrupt+0x19c/0x200
[  533.916000]  [<000000004019bf64>] handle_irq_event_percpu+0xac/0x300
[  534.000000]  [<00000000401a08b0>] handle_percpu_irq+0xa8/0xe0
[  534.076000]  [<000000004019b3b0>] generic_handle_irq+0x40/0x50
[  534.152000]  [<000000004011c2e0>] do_cpu_irq_mask+0x1d0/0x2b8
[  534.228000]  [<0000000040105074>] intr_return+0x0/0x4
[  534.296000] 
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From - Thu Nov 08 21:09:09 2018
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Subject: Re: Gentoo boot on C8000 (was: Re: PARISC Linux website and status update)
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Hi,

>> And that's it. Well, the ISO *is* an experimental one ;-) Any idea what
>> to try?
>
>video=radeonfb:off

Right, that got it to boot ;-) But it failed to recognize my hard disk:

[   15.020000] Fusion MPT base driver 3.04.20
[   15.072000] Copyright (c) 1999-2008 LSI Corporation
[   15.136000] Fusion MPT SPI Host driver 3.04.20
[   15.220000] mptbase: ioc0: Initiating bringup
[   15.760000] ioc0: LSI53C1030 B2: Capabilities={Initiator,Target}
[   16.328000] scsi0 : ioc0: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=66
[   43.872000] mptscsih: ioc0: attempting task abort! (sc=000000007f29e300)
[   43.960000] scsi 0:0:6:0: CDB: 
[   44.000000] cdb[0]=0x12: 12 00 00 00 24 00
[   54.176000] mptscsih: ioc0: WARNING - Issuing Reset from mptscsih_IssueTaskMgmt!! doorbell=0x24000000
[   55.584000] mptscsih: ioc0: task abort: SUCCESS (rv=2002) (sc=000000007f29e300)
[   55.680000] scsi target0:0:6: asynchronous
[   55.928000] mptscsih: ioc0: attempting target reset! (sc=000000007f29e300)
[   56.020000] scsi 0:0:6:0: CDB: 
[   56.060000] cdb[0]=0x12: 12 00 00 00 24 00
[   56.476000] mptscsih: ioc0: target reset: SUCCESS (sc=000000007f29e300)
[   56.812000] mptscsih: ioc0: attempting bus reset! (sc=000000007f29e300)
[   56.900000] scsi 0:0:6:0: CDB: 
[   56.944000] cdb[0]=0x12: 12 00 00 00 24 00
[   57.632000] mptscsih: ioc0: bus reset: SUCCESS (sc=000000007f29e300)
[   67.968000] mptscsih: ioc0: attempting host reset! (sc=000000007f29e300)
[   68.816000] mptscsih: ioc0: host reset: SUCCESS (sc=000000007f29e300)
[   68.900000] scsi target0:0:6: asynchronous
[   79.152000] scsi 0:0:6:0: Device offlined - not ready after error recovery
[   81.268000] mptbase: ioc1: Initiating bringup
[   81.808000] ioc1: LSI53C1030 B2: Capabilities={Initiator,Target}
[   82.376000] scsi1 : ioc1: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=67

Which is a bit strange as I can boot HPUX from it just fine. Is that a
common problem? Or should I just try another disk? E1000 ethernet support
is OK and running, though,

CU,
Uli
-- 
Dipl. Inf. Ulrich Teichert|e-mail: Ulrich.Teichert@gmx.de | Listening to:
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24539 Neumuenster, Germany|Sacred Decay (The Estranged), She's Lost Control
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From - Thu Nov 08 21:09:09 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Gentoo boot on C8000 (was: Re: PARISC Linux website and status
 update)
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On Thu, 2013-04-25 at 21:06 +0200, Ulrich Teichert wrote:
> Hi,
> 
> >> And that's it. Well, the ISO *is* an experimental one ;-) Any idea what
> >> to try?
> >
> >video=radeonfb:off
> 
> Right, that got it to boot ;-) But it failed to recognize my hard disk:
> 
> [   15.020000] Fusion MPT base driver 3.04.20
> [   15.072000] Copyright (c) 1999-2008 LSI Corporation
> [   15.136000] Fusion MPT SPI Host driver 3.04.20
> [   15.220000] mptbase: ioc0: Initiating bringup
> [   15.760000] ioc0: LSI53C1030 B2: Capabilities={Initiator,Target}
> [   16.328000] scsi0 : ioc0: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=66
> [   43.872000] mptscsih: ioc0: attempting task abort! (sc=000000007f29e300)
> [   43.960000] scsi 0:0:6:0: CDB: 
> [   44.000000] cdb[0]=0x12: 12 00 00 00 24 00
> [   54.176000] mptscsih: ioc0: WARNING - Issuing Reset from mptscsih_IssueTaskMgmt!! doorbell=0x24000000
> [   55.584000] mptscsih: ioc0: task abort: SUCCESS (rv=2002) (sc=000000007f29e300)
> [   55.680000] scsi target0:0:6: asynchronous
> [   55.928000] mptscsih: ioc0: attempting target reset! (sc=000000007f29e300)
> [   56.020000] scsi 0:0:6:0: CDB: 
> [   56.060000] cdb[0]=0x12: 12 00 00 00 24 00
> [   56.476000] mptscsih: ioc0: target reset: SUCCESS (sc=000000007f29e300)
> [   56.812000] mptscsih: ioc0: attempting bus reset! (sc=000000007f29e300)
> [   56.900000] scsi 0:0:6:0: CDB: 
> [   56.944000] cdb[0]=0x12: 12 00 00 00 24 00
> [   57.632000] mptscsih: ioc0: bus reset: SUCCESS (sc=000000007f29e300)
> [   67.968000] mptscsih: ioc0: attempting host reset! (sc=000000007f29e300)
> [   68.816000] mptscsih: ioc0: host reset: SUCCESS (sc=000000007f29e300)
> [   68.900000] scsi target0:0:6: asynchronous
> [   79.152000] scsi 0:0:6:0: Device offlined - not ready after error recovery
> [   81.268000] mptbase: ioc1: Initiating bringup
> [   81.808000] ioc1: LSI53C1030 B2: Capabilities={Initiator,Target}
> [   82.376000] scsi1 : ioc1: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=67
> 
> Which is a bit strange as I can boot HPUX from it just fine. Is that a
> common problem? Or should I just try another disk? E1000 ethernet support
> is OK and running, though,

That one looks very much like an interrupt routing problem ... the full
log might give more diagnostic information.

James


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From - Thu Nov 08 21:09:09 2018
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From: Ulrich Teichert <krypton@ulrich-teichert.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Gentoo boot on C8000 (was: Re: PARISC Linux website and status
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Hi,

>That one looks very much like an interrupt routing problem ... the full
>log might give more diagnostic information.

No problem:

[    0.000000] Linux version 3.6.11-livecd64 (root@terminator) (gcc version 4.6.3 (Gentoo 4.6.3 p1.9) ) #1 SMP Thu Jan 24 16:09:18 UTC 2013
[    0.000000] unwind_init: start = 0x406ad000, end = 0x406e85e0, entries = 15198
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 000089b0 00000491 00000000 00000002 56fa29f07c511780 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000401
[    0.000000] CPUID vers 20 rev 10 (0x0000028a)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/785/C8000
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000000100000000 End 0x00000001ffdfffff Size   4094 MB
[    0.000000]  2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
[    0.000000] Total Memory: 8190 MB
[    0.000000] initrd: 7fda6000-7ffee9d0
[    0.000000] initrd: reserving 3fda6000-3ffee9d0 (mem_max 1ffe00000)
[    0.000000] On node 0 totalpages: 262144
[    0.000000] free_area_init_node: node 0, pgdat 40706780, node_mem_map 41865000
[    0.000000]   Normal zone: 3584 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 258560 pages, LIFO batch:31
[    0.000000] On node 1 totalpages: 1048064
[    0.000000] free_area_init_node: node 1, pgdat 40707540, node_mem_map 140000000
[    0.000000]   Normal zone: 14329 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 1033735 pages, LIFO batch:31
[    0.000000] On node 2 totalpages: 786432
[    0.000000] free_area_init_node: node 2, pgdat 40708300, node_mem_map 4080000000
[    0.000000]   Normal zone: 10752 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 775680 pages, LIFO batch:31
[    0.000000] PERCPU: Embedded 10 pages/cpu @000000004266e000 s9728 r8192 d23040 u40960
[    0.000000] pcpu-alloc: s9728 r8192 d23040 u40960 alloc=10*4096
[    0.000000] pcpu-alloc: [0] 00 [0] 01 [0] 02 [0] 03 [0] 04 [0] 05 [0] 06 [0] 07 
[    0.000000] pcpu-alloc: [0] 08 [0] 09 [0] 10 [0] 11 [0] 12 [0] 13 [0] 14 [0] 15 
[    0.000000] pcpu-alloc: [0] 16 [0] 17 [0] 18 [0] 19 [0] 20 [0] 21 [0] 22 [0] 23 
[    0.000000] pcpu-alloc: [0] 24 [0] 25 [0] 26 [0] 27 [0] 28 [0] 29 [0] 30 [0] 31 
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 2067975
[    0.000000] Kernel command line:  root=/dev/ram0 init=/linuxrc cdroot dokeymap looptype=squashfs loop=/image.squashfs console=ttyB0 video=radeonfb:off palo_kernel=0/livecd
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[    0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.000000] Memory: 8230968k/8386560k available (4846k kernel code, 155592k reserved, 1929k data, 376k init)
[    0.000000] SLUB: Genslabs=11, HWalign=64, Order=0-3, MinObjects=0, CPUs=32, Nodes=8
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS:128
[    0.000000] Console: colour dummy device 160x64
[    0.060000] Calibrating delay loop... 1988.60 BogoMIPS (lpj=3977216)
[    0.156000] pid_max: default: 32768 minimum: 301
[    0.216000] Mount-cache hash table entries: 256
[    0.276000] Brought up 1 CPUs
[    0.316000] xor: measuring software checksum speed
[    0.420000]    8regs     :  4697.000 MB/sec
[    0.512000]    8regs_prefetch:  3504.000 MB/sec
[    0.608000]    32regs    :  3852.000 MB/sec
[    0.700000]    32regs_prefetch:  3552.000 MB/sec
[    0.760000] xor: using function: 8regs (4697.000 MB/sec)
[    0.828000] NET: Registered protocol family 16
[    0.888000] EISA bus registered
[    0.928000] Searching for devices...
[    1.080000] Found devices:
[    1.116000] 1. Crestone Peak Mako+ Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x89b, 0x00004 }
[    1.232000] 2. Crestone Peak Mako+ Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x89b, 0x00004 }
[    1.344000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0b6, 0x00009 }
[    1.436000] 4. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
[    1.544000] 5. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
[    1.652000] 6. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
[    1.760000] 7. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
[    1.868000] 8. Quicksilver AGP Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x784, 0x0000a }
[    1.980000] 9. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
[    2.088000] 10. unknown device at 0xfffffff0f05e0000 [17] { 10, 0x0, 0x076, 0x000ad }
[    2.192000] 11. unknown device at 0xfffffff0f05e2000 [18] { 10, 0x0, 0x076, 0x000ad }
[    2.296000] Enabling PDC_PAT chassis codes support v0.05
[    3.192000] Releasing cpu 1 now, hpa=fffffffffe781000
[    3.616000] FP[1] enabled: Rev 1 Model 20
[    3.620000] genirq: Flags mismatch irq 64. 00015620 (timer) vs. 00015620 (timer)
[    3.768000] genirq: Flags mismatch irq 65. 00000420 (IPI) vs. 00000420 (IPI)
[    3.876000] CPU(s): 2 x PA8900 (Shortfin) at 1000.000000 MHz
[    3.960000] Whole cache flush 8506953 cycles, flushing 8413184 bytes 1019328 cycles
[    3.960000] Setting cache flush threshold to 4000000 (2 CPUs online)
[    4.192000] SBA found Pluto 2.3 at 0xfffffffffed00000
[    4.408000] Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
[    4.552000] LBA 0:0: PCI host bridge to bus 0000:00
[    4.616000] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    4.696000] pci_bus 0000:00: root bus resource [mem 0xffffffff80000000-0xffffffff8fffffff] (bus address [0x80000000-0x8fffffff])
[    4.848000] pci_bus 0000:00: root bus resource [mem 0xffffff0000000000-0xffffff0fffffffff]
[    4.960000] pci_bus 0000:00: busn_res: [bus 00-07] is inserted under domain [bus 00-ff]
[    4.960000] pci_bus 0000:00: root bus resource [bus 00-07]
[    5.056000] Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
[    5.200000] LBA 0:2: PCI host bridge to bus 0000:40
[    5.264000] pci_bus 0000:40: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
[    5.384000] pci_bus 0000:40: root bus resource [mem 0xffffffffa0000000-0xffffffffafffffff] (bus address [0xa0000000-0xafffffff])
[    5.536000] pci_bus 0000:40: root bus resource [mem 0xffffff2000000000-0xffffff2fffffffff]
[    5.644000] pci_bus 0000:40: busn_res: [bus 40-47] is inserted under domain [bus 00-ff]
[    5.644000] pci_bus 0000:40: root bus resource [bus 40-47]
[    5.716000] pci 0000:40:01.0: [1000:0030] type 00 class 0x010000
[    5.716000] pci 0000:40:01.0: reg 10: [io  0x14100-0x141ff]
[    5.716000] pci 0000:40:01.0: reg 14: [mem 0xffffffffa0260000-0xffffffffa027ffff 64bit]
[    5.716000] pci 0000:40:01.0: reg 1c: [mem 0xffffffffa0240000-0xffffffffa025ffff 64bit]
[    5.716000] pci 0000:40:01.0: reg 30: [mem 0xffffffffa0100000-0xffffffffa01fffff pref]
[    5.716000] pci 0000:40:01.0: supports D1 D2
[    5.716000] pci 0000:40:01.1: [1000:0030] type 00 class 0x010000
[    5.716000] pci 0000:40:01.1: reg 10: [io  0x14000-0x140ff]
[    5.716000] pci 0000:40:01.1: reg 14: [mem 0xffffffffa0220000-0xffffffffa023ffff 64bit]
[    5.716000] pci 0000:40:01.1: reg 1c: [mem 0xffffffffa0200000-0xffffffffa021ffff 64bit]
[    5.716000] pci 0000:40:01.1: reg 30: [mem 0xffffffffa0000000-0xffffffffa00fffff pref]
[    5.716000] pci 0000:40:01.1: supports D1 D2
[    5.740000] Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
[    5.888000] LBA 0:3: PCI host bridge to bus 0000:60
[    5.952000] pci_bus 0000:60: root bus resource [io  0x20000-0x2ffff] (bus address [0x0000-0xffff])
[    6.068000] pci_bus 0000:60: root bus resource [mem 0xffffffffb0000000-0xffffffffbfffffff] (bus address [0xb0000000-0xbfffffff])
[    6.220000] pci_bus 0000:60: root bus resource [mem 0xffffff3000000000-0xffffff3fffffffff]
[    6.332000] pci_bus 0000:60: busn_res: [bus 60-67] is inserted under domain [bus 00-ff]
[    6.332000] pci_bus 0000:60: root bus resource [bus 60-67]
[    6.404000] pci 0000:60:01.0: [1033:0035] type 00 class 0x0c0310
[    6.404000] pci 0000:60:01.0: reg 10: [mem 0xffffffffb00a3000-0xffffffffb00a3fff]
[    6.404000] pci 0000:60:01.0: supports D1 D2
[    6.404000] pci 0000:60:01.0: PME# supported from D0 D1 D2 D3hot
[    6.404000] pci 0000:60:01.1: [1033:0035] type 00 class 0x0c0310
[    6.404000] pci 0000:60:01.1: reg 10: [mem 0xffffffffb00a2000-0xffffffffb00a2fff]
[    6.404000] pci 0000:60:01.1: supports D1 D2
[    6.404000] pci 0000:60:01.1: PME# supported from D0 D1 D2 D3hot
[    6.404000] pci 0000:60:01.2: [1033:00e0] type 00 class 0x0c0320
[    6.404000] pci 0000:60:01.2: reg 10: [mem 0xffffffffb00a1000-0xffffffffb00a10ff]
[    6.404000] pci 0000:60:01.2: supports D1 D2
[    6.404000] pci 0000:60:01.2: PME# supported from D0 D1 D2 D3hot
[    6.404000] pci 0000:60:02.0: [1095:0680] type 00 class 0x010185
[    6.404000] pci 0000:60:02.0: reg 10: [io  0x26058-0x2605f]
[    6.404000] pci 0000:60:02.0: reg 14: [io  0x26064-0x26067]
[    6.404000] pci 0000:60:02.0: reg 18: [io  0x26050-0x26057]
[    6.404000] pci 0000:60:02.0: reg 1c: [io  0x26060-0x26063]
[    6.404000] pci 0000:60:02.0: reg 20: [io  0x26040-0x2604f]
[    6.404000] pci 0000:60:02.0: reg 24: [mem 0xffffffffb00a0000-0xffffffffb00a00ff]
[    6.404000] pci 0000:60:02.0: reg 30: [mem 0xffffffffb0000000-0xffffffffb007ffff pref]
[    6.404000] pci 0000:60:02.0: supports D1 D2
[    6.404000] pci 0000:60:03.0: [8086:100e] type 00 class 0x020000
[    6.404000] pci 0000:60:03.0: reg 10: [mem 0xffffffffb0080000-0xffffffffb009ffff]
[    6.404000] pci 0000:60:03.0: reg 18: [io  0x26000-0x2603f]
[    6.404000] pci 0000:60:03.0: PME# supported from D0 D3hot D3cold
[    6.428000] Quicksilver version TR1.0 (0x10) found at 0xfffffffffed28000
[    6.576000] LBA 0:4: PCI host bridge to bus 0000:80
[    6.644000] pci_bus 0000:80: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0xffff])
[    6.760000] pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffcfffffff] (bus address [0xc0000000-0xcfffffff])
[    6.912000] pci_bus 0000:80: root bus resource [mem 0xffffff4000000000-0xffffff4fffffffff]
[    7.024000] pci_bus 0000:80: busn_res: [bus 80-87] is inserted under domain [bus 00-ff]
[    7.024000] pci_bus 0000:80: root bus resource [bus 80-87]
[    7.096000] pci 0000:80:00.0: [1002:4a4d] type 00 class 0x030000
[    7.096000] pci 0000:80:00.0: reg 10: [mem 0xffffffffc8000000-0xffffffffcfffffff pref]
[    7.096000] pci 0000:80:00.0: reg 14: [io  0x3c000-0x3c0ff]
[    7.096000] pci 0000:80:00.0: reg 18: [mem 0xd0030000-0xd003ffff]
[    7.096000] pci 0000:80:00.0: reg 30: [mem 0xd0000000-0xd001ffff pref]
[    7.096000] pci 0000:80:00.0: supports D1 D2
[    7.096000] pci 0000:80:00.1: [1002:4a6d] type 00 class 0x038000
[    7.096000] pci 0000:80:00.1: reg 10: [mem 0xffffffffc0000000-0xffffffffc7ffffff pref]
[    7.096000] pci 0000:80:00.1: reg 14: [mem 0xd0020000-0xd002ffff]
[    7.096000] pci 0000:80:00.1: supports D1 D2
[    7.096000] pci 0000:80:00.0: no compatible bridge window for [mem 0xd0030000-0xd003ffff]
[    7.204000] pci 0000:80:00.0: no compatible bridge window for [mem 0xd0000000-0xd001ffff pref]
[    7.316000] pci 0000:80:00.1: no compatible bridge window for [mem 0xd0020000-0xd002ffff]
[    7.424000] iosapic: no IRTE for 0000:80:00.1 (IRQ not connected?)
[    7.504000] pci 0000:80:00.0: BAR 6: assigned [mem 0xffffff4000000000-0xffffff400001ffff pref]
[    7.620000] pci 0000:80:00.0: BAR 2: assigned [mem 0xffffff4000020000-0xffffff400002ffff]
[    7.728000] pci 0000:80:00.1: BAR 1: assigned [mem 0xffffff4000030000-0xffffff400003ffff]
[    8.240000] powersw: Soft power switch at 0xfffffff0f042e278 enabled.
[    8.336000] bio: create slab <bio-0> at 0
[    8.456000] raid6: int64x1    987 MB/s
[    8.572000] raid6: int64x2   1207 MB/s
[    8.688000] raid6: int64x4   1342 MB/s
[    8.804000] raid6: int64x8   1269 MB/s
[    8.852000] raid6: using algorithm int64x4 (1342 MB/s)
[    8.920000] raid6: using intx1 recovery algorithm
[    8.980000] vgaarb: device added: PCI:0000:80:00.0,decodes=io+mem,owns=io+mem,locks=none
[    9.088000] vgaarb: loaded
[    9.124000] vgaarb: bridge control possible 0000:80:00.0
[    9.196000] SCSI subsystem initialized
[    9.244000] usbcore: registered new interface driver usbfs
[    9.316000] usbcore: registered new interface driver hub
[    9.388000] usbcore: registered new device driver usb
[    9.460000] NET: Registered protocol family 2
[    9.520000] TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
[    9.620000] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    9.712000] TCP: Hash tables configured (established 262144 bind 65536)
[    9.800000] TCP: reno registered
[    9.840000] UDP hash table entries: 4096 (order: 5, 131072 bytes)
[    9.920000] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes)
[   10.008000] NET: Registered protocol family 1
[   10.064000] PCI: CLS 64 bytes
[   10.140000] Unpacking initramfs...
[   11.484000] Freeing initrd memory: 2338k freed
[   11.544000] The PDC console driver is still registered, removing CON_BOOT flag
[   11.640000] Chassis warnings not supported.
[   11.696000] Performance monitoring counters enabled for Crestone Peak Mako+ Slow
[   11.804000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[   11.904000] msgmni has been set to 16080
[   11.956000] io scheduler noop registered
[   12.008000] io scheduler deadline registered
[   12.068000] io scheduler cfq registered (default)
[   12.128000] STI GSC/PCI core graphics driver Version 0.9a
[   12.256000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[   12.336000] Linux agpgart interface v0.103
[   12.396000] loop: module loaded
[   12.436000] Uniform Multi-Platform E-IDE driver
[   12.520000] siimage 0000:60:02.0: IDE controller (0x1095:0x0680 rev 0x02)
[   12.612000] siimage 0000:60:02.0: BASE CLOCK == 133
[   12.676000] siimage 0000:60:02.0: 100% native mode on irq 71
[   12.748000]     ide0: MMIO-DMA
[   12.788000]     ide1: MMIO-DMA
[   12.832000] Probing IDE interface ide0...
[   13.400000] Probing IDE interface ide1...
[   14.136000] hdc: HL-DT-STDVD-ROM GDR8164B, ATAPI CD/DVD-ROM drive
[   14.552000] hdc: host max PIO4 wanted PIO255(auto-tune) selected PIO4
[   14.552000] hdc: UDMA/44 mode selected
[   14.604000] ide0 at 0x60080-0x60087,0x6008a on irq 71
[   14.668000] ide1 at 0x600c0-0x600c7,0x600ca on irq 71
[   14.736000] ide-gd driver 1.18
[   14.776000] ide-cd driver 5.00
[   14.824000] ide-cd: hdc: ATAPI 48X DVD-ROM drive, 256kB Cache
[   14.900000] cdrom: Uniform CD-ROM driver Revision: 3.20
[   15.020000] Fusion MPT base driver 3.04.20
[   15.072000] Copyright (c) 1999-2008 LSI Corporation
[   15.136000] Fusion MPT SPI Host driver 3.04.20
[   15.220000] mptbase: ioc0: Initiating bringup
[   15.760000] ioc0: LSI53C1030 B2: Capabilities={Initiator,Target}
[   16.328000] scsi0 : ioc0: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=66
[   43.872000] mptscsih: ioc0: attempting task abort! (sc=000000007f29e300)
[   43.960000] scsi 0:0:6:0: CDB: 
[   44.000000] cdb[0]=0x12: 12 00 00 00 24 00
[   54.176000] mptscsih: ioc0: WARNING - Issuing Reset from mptscsih_IssueTaskMgmt!! doorbell=0x24000000
[   55.584000] mptscsih: ioc0: task abort: SUCCESS (rv=2002) (sc=000000007f29e300)
[   55.680000] scsi target0:0:6: asynchronous
[   55.928000] mptscsih: ioc0: attempting target reset! (sc=000000007f29e300)
[   56.020000] scsi 0:0:6:0: CDB: 
[   56.060000] cdb[0]=0x12: 12 00 00 00 24 00
[   56.476000] mptscsih: ioc0: target reset: SUCCESS (sc=000000007f29e300)
[   56.812000] mptscsih: ioc0: attempting bus reset! (sc=000000007f29e300)
[   56.900000] scsi 0:0:6:0: CDB: 
[   56.944000] cdb[0]=0x12: 12 00 00 00 24 00
[   57.632000] mptscsih: ioc0: bus reset: SUCCESS (sc=000000007f29e300)
[   67.968000] mptscsih: ioc0: attempting host reset! (sc=000000007f29e300)
[   68.816000] mptscsih: ioc0: host reset: SUCCESS (sc=000000007f29e300)
[   68.900000] scsi target0:0:6: asynchronous
[   79.152000] scsi 0:0:6:0: Device offlined - not ready after error recovery
[   81.268000] mptbase: ioc1: Initiating bringup
[   81.808000] ioc1: LSI53C1030 B2: Capabilities={Initiator,Target}
[   82.376000] scsi1 : ioc1: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=67
[   86.868000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[   86.952000] ehci_hcd: block sizes: qh 104 qtd 96 itd 192 sitd 96
[   86.976000] ehci_hcd 0000:60:01.2: EHCI Host Controller
[   87.048000] ehci_hcd 0000:60:01.2: new USB bus registered, assigned bus number 1
[   87.144000] ehci_hcd 0000:60:01.2: reset hcs_params 0x2395 dbg=0 cc=2 pcc=3 ports=5
[   87.144000] ehci_hcd 0000:60:01.2: reset portroute 1 0 1 0 0 
[   87.144000] ehci_hcd 0000:60:01.2: reset hcc_params 0002 thresh 0 uframes 256/512/1024
[   87.144000] ehci_hcd 0000:60:01.2: reset command 0080002 (park)=0 ithresh=8 period=1024 Reset HALT
[   87.144000] ehci_hcd 0000:60:01.2: ...powerup ports...
[   87.168000] ehci_hcd 0000:60:01.2: MWI active
[   87.168000] ehci_hcd 0000:60:01.2: supports USB remote wakeup
[   87.168000] ehci_hcd 0000:60:01.2: irq 70, io mem 0xffffffffb00a1000
[   87.248000] ehci_hcd 0000:60:01.2: init command 0010005 (park)=0 ithresh=1 period=512 RUN
[   87.260000] ehci_hcd 0000:60:01.2: USB 2.0 started, EHCI 0.95
[   87.332000] usb usb1: default language 0x0409
[   87.332000] usb usb1: udev 1, busnum 1, minor = 0
[   87.332000] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[   87.424000] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   87.520000] usb usb1: Product: EHCI Host Controller
[   87.584000] usb usb1: Manufacturer: Linux 3.6.11-livecd64 ehci_hcd
[   87.664000] usb usb1: SerialNumber: 0000:60:01.2
[   87.724000] usb usb1: usb_probe_device
[   87.724000] usb usb1: configuration #1 chosen from 1 choice
[   87.724000] usb usb1: adding 1-0:1.0 (config #1, interface 0)
[   87.724000] hub 1-0:1.0: usb_probe_interface
[   87.724000] hub 1-0:1.0: usb_probe_interface - got id
[   87.724000] hub 1-0:1.0: USB hub found
[   87.776000] hub 1-0:1.0: 5 ports detected
[   87.828000] hub 1-0:1.0: standalone hub
[   87.828000] hub 1-0:1.0: individual port power switching
[   87.828000] hub 1-0:1.0: individual port over-current protection
[   87.828000] hub 1-0:1.0: power on to power good time: 20ms
[   87.828000] hub 1-0:1.0: local power source is good
[   87.828000] hub 1-0:1.0: enabling power on all ports
[   87.828000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[   87.908000] ohci_hcd: block sizes: ed 80 td 96
[   87.936000] ohci_hcd 0000:60:01.0: OHCI Host Controller
[   88.004000] ohci_hcd 0000:60:01.0: new USB bus registered, assigned bus number 2
[   88.100000] ohci_hcd 0000:60:01.0: enabled NEC chipset lost interrupt quirk
[   88.100000] ohci_hcd 0000:60:01.0: created debug files
[   88.100000] ohci_hcd 0000:60:01.0: supports USB remote wakeup
[   88.100000] ohci_hcd 0000:60:01.0: irq 68, io mem 0xffffffffb00a3000
[   88.184000] hub 1-0:1.0: state 7 ports 5 chg 0000 evt 0000
[   88.748000] ohci_hcd 0000:60:01.0: OHCI controller state
[   88.748000] ohci_hcd 0000:60:01.0: OHCI 1.0, NO legacy support registers, rh state running
[   88.748000] ohci_hcd 0000:60:01.0: control 0x083 HCFS=operational CBSR=3
[   88.748000] ohci_hcd 0000:60:01.0: cmdstatus 0x00000 SOC=0
[   88.748000] ohci_hcd 0000:60:01.0: intrstatus 0x00000004 SF
[   88.748000] ohci_hcd 0000:60:01.0: intrenable 0x8000005a MIE RHSC UE RD WDH
[   88.748000] ohci_hcd 0000:60:01.0: hcca frame #01ff
[   88.748000] ohci_hcd 0000:60:01.0: roothub.a ff000203 POTPGT=255 NPS NDP=3(3)
[   88.748000] ohci_hcd 0000:60:01.0: roothub.b 00000000 PPCM=0000 DR=0000
[   88.748000] ohci_hcd 0000:60:01.0: roothub.status 00008000 DRWE
[   88.748000] ohci_hcd 0000:60:01.0: roothub.portstatus [0] 0x00000100 PPS
[   88.748000] ohci_hcd 0000:60:01.0: roothub.portstatus [1] 0x00000100 PPS
[   88.748000] ohci_hcd 0000:60:01.0: roothub.portstatus [2] 0x00000100 PPS
[   88.748000] usb usb2: default language 0x0409
[   88.748000] usb usb2: udev 1, busnum 2, minor = 128
[   88.748000] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
[   88.836000] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   88.932000] usb usb2: Product: OHCI Host Controller
[   88.996000] usb usb2: Manufacturer: Linux 3.6.11-livecd64 ohci_hcd
[   89.080000] usb usb2: SerialNumber: 0000:60:01.0
[   89.140000] usb usb2: usb_probe_device
[   89.140000] usb usb2: configuration #1 chosen from 1 choice
[   89.140000] usb usb2: adding 2-0:1.0 (config #1, interface 0)
[   89.140000] hub 2-0:1.0: usb_probe_interface
[   89.140000] hub 2-0:1.0: usb_probe_interface - got id
[   89.140000] hub 2-0:1.0: USB hub found
[   89.188000] hub 2-0:1.0: 3 ports detected
[   89.244000] hub 2-0:1.0: standalone hub
[   89.244000] hub 2-0:1.0: no power switching (usb 1.0)
[   89.244000] hub 2-0:1.0: global over-current protection
[   89.244000] hub 2-0:1.0: power on to power good time: 510ms
[   89.244000] hub 2-0:1.0: local power source is good
[   89.244000] hub 2-0:1.0: no over-current condition exists
[   89.244000] hub 2-0:1.0: trying to enable port power on non-switchable hub
[   89.268000] ohci_hcd 0000:60:01.1: OHCI Host Controller
[   89.336000] ohci_hcd 0000:60:01.1: new USB bus registered, assigned bus number 3
[   89.432000] ohci_hcd 0000:60:01.1: enabled NEC chipset lost interrupt quirk
[   89.432000] ohci_hcd 0000:60:01.1: created debug files
[   89.432000] ohci_hcd 0000:60:01.1: supports USB remote wakeup
[   89.432000] ohci_hcd 0000:60:01.1: irq 69, io mem 0xffffffffb00a2000
[   90.080000] ohci_hcd 0000:60:01.1: OHCI controller state
[   90.080000] ohci_hcd 0000:60:01.1: OHCI 1.0, NO legacy support registers, rh state running
[   90.080000] ohci_hcd 0000:60:01.1: control 0x083 HCFS=operational CBSR=3
[   90.080000] ohci_hcd 0000:60:01.1: cmdstatus 0x00000 SOC=0
[   90.080000] ohci_hcd 0000:60:01.1: intrstatus 0x00000004 SF
[   90.080000] ohci_hcd 0000:60:01.1: intrenable 0x8000005a MIE RHSC UE RD WDH
[   90.080000] ohci_hcd 0000:60:01.1: hcca frame #01ff
[   90.080000] ohci_hcd 0000:60:01.1: roothub.a ff000202 POTPGT=255 NPS NDP=2(2)
[   90.080000] ohci_hcd 0000:60:01.1: roothub.b 00000000 PPCM=0000 DR=0000
[   90.080000] ohci_hcd 0000:60:01.1: roothub.status 00008000 DRWE
[   90.080000] ohci_hcd 0000:60:01.1: roothub.portstatus [0] 0x00000100 PPS
[   90.080000] ohci_hcd 0000:60:01.1: roothub.portstatus [1] 0x00000100 PPS
[   90.080000] usb usb3: default language 0x0409
[   90.080000] usb usb3: udev 1, busnum 3, minor = 256
[   90.080000] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
[   90.168000] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   90.264000] usb usb3: Product: OHCI Host Controller
[   90.328000] usb usb3: Manufacturer: Linux 3.6.11-livecd64 ohci_hcd
[   90.412000] usb usb3: SerialNumber: 0000:60:01.1
[   90.472000] hub 2-0:1.0: state 7 ports 3 chg 0000 evt 0000
[   90.472000] usb usb3: usb_probe_device
[   90.472000] usb usb3: configuration #1 chosen from 1 choice
[   90.472000] usb usb3: adding 3-0:1.0 (config #1, interface 0)
[   90.472000] hub 3-0:1.0: usb_probe_interface
[   90.472000] hub 3-0:1.0: usb_probe_interface - got id
[   90.472000] hub 3-0:1.0: USB hub found
[   90.520000] hub 3-0:1.0: 2 ports detected
[   90.576000] hub 3-0:1.0: standalone hub
[   90.576000] hub 3-0:1.0: no power switching (usb 1.0)
[   90.576000] hub 3-0:1.0: global over-current protection
[   90.576000] hub 3-0:1.0: power on to power good time: 510ms
[   90.576000] hub 3-0:1.0: local power source is good
[   90.576000] hub 3-0:1.0: no over-current condition exists
[   90.576000] hub 3-0:1.0: trying to enable port power on non-switchable hub
[   90.576000] usbcore: registered new interface driver libusual
[   90.652000] mousedev: PS/2 mouse device common for all mice
[   90.732000] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[   90.824000] md: raid1 personality registered for level 1
[   90.896000] md: raid6 personality registered for level 6
[   90.964000] md: raid5 personality registered for level 5
[   91.036000] md: raid4 personality registered for level 4
[   91.104000] hub 3-0:1.0: state 7 ports 2 chg 0000 evt 0000
[   91.108000] usbcore: registered new interface driver usbhid
[   91.184000] usbhid: USB HID core driver
[   91.232000] TCP: cubic registered
[   91.276000] NET: Registered protocol family 10
[   91.336000] NET: Registered protocol family 17
[   91.396000] Key type dns_resolver registered
[   91.460000] rtc-generic rtc-generic: setting system clock to 2013-03-17 09:30:08 UTC (1363512608)
[   92.056000] Freeing unused kernel memory: 376k freed
[  168.076000] ISO 9660 Extensions: Microsoft Joliet Level 3
[  169.840000] ISO 9660 Extensions: RRIP_1991A
[  381.100000] udevd[4964]: starting version 171
[  383.248000] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[  383.248000] e1000: Copyright (c) 1999-2006 Intel Corporation.
[  384.504000] e1000 0000:60:03.0: eth0: (PCI:33MHz:32-bit) 00:13:21:1a:c5:a5
[  384.504000] e1000 0000:60:03.0: eth0: Intel(R) PRO/1000 Network Connection
[  450.320000] warning: process `hwsetup' used the deprecated sysctl system call with 1.23.
[  459.952000] hdc: UDMA/44 mode selected
[  462.008000] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[  462.024000] e1000: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
[  462.024000] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[  480.360000] RPC: Registered named UNIX socket transport module.
[  480.360000] RPC: Registered udp transport module.
[  480.360000] RPC: Registered tcp transport module.
[  480.360000] RPC: Registered tcp NFSv4.1 backchannel transport module.
[  526.456000] timer_interrupt(CPU 0): delayed! cycles 6D20C802 rem 1151FE  next/now 9DB32D5936/9DB31C0738
[  532.064000] timer_interrupt(CPU 1): delayed! cycles 8BDE3C25 rem 1566DB  next/now 9E9442784D/9E942D1172
[  535.804000] timer_interrupt(CPU 1): delayed! cycles 8BAEB7CF rem 7E231  next/now 9F732E574D/9F7326751C
[  539.344000] timer_interrupt(CPU 1): delayed! cycles 7A0EDE04 rem 321FC  next/now A045F16B4D/A045EE4951
[  545.640000] timer_interrupt(CPU 0): delayed! cycles 7A0F65F6 rem 29A0A  next/now A23781DB36/A2377F412C
[  560.924000] timer_interrupt(CPU 1): delayed! cycles 7A1125BA rem DA46  next/now A54C36164D/A54C353C07
[  565.084000] timer_interrupt(CPU 1): delayed! cycles 7A101DFF rem 1E201  next/now A6442AA64D/A64428C44C
[  572.508000] timer_interrupt(CPU 1): delayed! cycles 7A0BBEC8 rem 64138  next/now A7FEE8EF4D/A7FEE2AE15
[  582.576000] timer_interrupt(CPU 1): delayed! cycles 7A0C167D rem 5E983  next/now AA57026C4D/AA56FC82CA
[  863.356000] PDC Stable Storage facility v0.30

eth0 has a flaky connector, that's why it comes up only after a delay,

CU,
Uli
-- 
Dipl. Inf. Ulrich Teichert|e-mail: Ulrich.Teichert@gmx.de | Listening to:
Stormweg 24               |Pale Bride (The Von Bondies), Slip Away (Sedatives)
24539 Neumuenster, Germany|Sacred Decay (The Estranged), She's Lost Control
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From - Thu Nov 08 21:09:09 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [GIT PULL] late parisc fixes for 3.9
Date: Thu, 25 Apr 2013 23:24:38 +0200
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1481292>

Hi Linus,

I know it's *very* late in the 3.9 release cycle, but since there aren't
that many people testing the parisc linux kernel, a few (for our port)
critical issues just showed up a few days back for the first time.

That said, it would be very kind if you could pull this patchset which
touches parisc source files only.

What's in it?
* add missing __ucmpdi2 symbol, which is required for btrfs on 32bit kernel.
* change kunmap() macro to static inline function. This fixes a
  debian/gcc-4.4 build error.
* add locking when doing PTE updates. This fixes random userspace crashes.
* disable (optional) -mlong-calls compiler option for modules, else
  modules can't be loaded at runtime.
* a smart patch by Will Deacon which fixes 64bit put_user() warnings on
  32bit kernel.

Thanks,
Helge



The following changes since commit 0fbd06761f5c17cc9b20e02af60fd7ee9c895996:

  Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc (2013-04-24 17:10:18 -0700)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git fixes-3.9-late

for you to fetch changes up to bda079d336cd8183e1d844a265ea87ae3e1bbe78:

  parisc: use spin_lock_irqsave/spin_unlock_irqrestore for PTE updates (2013-04-25 22:37:00 +0200)

----------------------------------------------------------------
Helge Deller (1):
      parisc: disable -mlong-calls compiler option for kernel modules

John David Anglin (3):
      parisc: Provide __ucmpdi2 to resolve undefined references in 32 bit builds.
      parisc: Change kunmap macro to static inline function
      parisc: use spin_lock_irqsave/spin_unlock_irqrestore for PTE updates

Will Deacon (1):
      parisc: uaccess: fix compiler warnings caused by __put_user casting

 arch/parisc/Makefile                 |  6 +++--
 arch/parisc/include/asm/cacheflush.h |  5 +++-
 arch/parisc/include/asm/pgtable.h    | 47 +++++++++++++++++++-----------------
 arch/parisc/include/asm/uaccess.h    | 14 +++--------
 arch/parisc/kernel/cache.c           |  5 +---
 arch/parisc/kernel/parisc_ksyms.c    |  2 ++
 arch/parisc/lib/Makefile             |  3 ++-
 arch/parisc/lib/ucmpdi2.c            | 25 +++++++++++++++++++
 8 files changed, 67 insertions(+), 40 deletions(-)
 create mode 100644 arch/parisc/lib/ucmpdi2.c

--------------



diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 01d95e2..113e282 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -65,8 +65,10 @@ ifndef CONFIG_FUNCTION_TRACER
 endif
 
 # Use long jumps instead of long branches (needed if your linker fails to
-# link a too big vmlinux executable)
-cflags-$(CONFIG_MLONGCALLS)	+= -mlong-calls
+# link a too big vmlinux executable). Not enabled for building modules.
+ifdef CONFIG_MLONGCALLS
+KBUILD_CFLAGS_KERNEL += -mlong-calls
+endif
 
 # select which processor to optimise for
 cflags-$(CONFIG_PA7100)		+= -march=1.1 -mschedule=7100
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 79f694f..f0e2784 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -140,7 +140,10 @@ static inline void *kmap(struct page *page)
 	return page_address(page);
 }
 
-#define kunmap(page)			kunmap_parisc(page_address(page))
+static inline void kunmap(struct page *page)
+{
+	kunmap_parisc(page_address(page));
+}
 
 static inline void *kmap_atomic(struct page *page)
 {
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 7df49fa..1e40d7f 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -16,6 +16,8 @@
 #include <asm/processor.h>
 #include <asm/cache.h>
 
+extern spinlock_t pa_dbit_lock;
+
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -44,8 +46,11 @@ extern void purge_tlb_entries(struct mm_struct *, unsigned long);
 
 #define set_pte_at(mm, addr, ptep, pteval)                      \
 	do {                                                    \
+		unsigned long flags;				\
+		spin_lock_irqsave(&pa_dbit_lock, flags);	\
 		set_pte(ptep, pteval);                          \
 		purge_tlb_entries(mm, addr);                    \
+		spin_unlock_irqrestore(&pa_dbit_lock, flags);	\
 	} while (0)
 
 #endif /* !__ASSEMBLY__ */
@@ -435,48 +440,46 @@ extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t *);
 
 static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
 {
-#ifdef CONFIG_SMP
+	pte_t pte;
+	unsigned long flags;
+
 	if (!pte_young(*ptep))
 		return 0;
-	return test_and_clear_bit(xlate_pabit(_PAGE_ACCESSED_BIT), &pte_val(*ptep));
-#else
-	pte_t pte = *ptep;
-	if (!pte_young(pte))
+
+	spin_lock_irqsave(&pa_dbit_lock, flags);
+	pte = *ptep;
+	if (!pte_young(pte)) {
+		spin_unlock_irqrestore(&pa_dbit_lock, flags);
 		return 0;
-	set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte));
+	}
+	set_pte(ptep, pte_mkold(pte));
+	purge_tlb_entries(vma->vm_mm, addr);
+	spin_unlock_irqrestore(&pa_dbit_lock, flags);
 	return 1;
-#endif
 }
 
-extern spinlock_t pa_dbit_lock;
-
 struct mm_struct;
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
 	pte_t old_pte;
+	unsigned long flags;
 
-	spin_lock(&pa_dbit_lock);
+	spin_lock_irqsave(&pa_dbit_lock, flags);
 	old_pte = *ptep;
 	pte_clear(mm,addr,ptep);
-	spin_unlock(&pa_dbit_lock);
+	purge_tlb_entries(mm, addr);
+	spin_unlock_irqrestore(&pa_dbit_lock, flags);
 
 	return old_pte;
 }
 
 static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
-#ifdef CONFIG_SMP
-	unsigned long new, old;
-
-	do {
-		old = pte_val(*ptep);
-		new = pte_val(pte_wrprotect(__pte (old)));
-	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	unsigned long flags;
+	spin_lock_irqsave(&pa_dbit_lock, flags);
+	set_pte(ptep, pte_wrprotect(*ptep));
 	purge_tlb_entries(mm, addr);
-#else
-	pte_t old_pte = *ptep;
-	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
-#endif
+	spin_unlock_irqrestore(&pa_dbit_lock, flags);
 }
 
 #define pte_same(A,B)	(pte_val(A) == pte_val(B))
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 4ba2c93..e0a8235 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -181,30 +181,24 @@ struct exception_data {
 #if !defined(CONFIG_64BIT)
 
 #define __put_kernel_asm64(__val,ptr) do {		    \
-	u64 __val64 = (u64)(__val);			    \
-	u32 hi = (__val64) >> 32;			    \
-	u32 lo = (__val64) & 0xffffffff;		    \
 	__asm__ __volatile__ (				    \
 		"\n1:\tstw %2,0(%1)"			    \
-		"\n2:\tstw %3,4(%1)\n\t"		    \
+		"\n2:\tstw %R2,4(%1)\n\t"		    \
 		ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\
 		ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
+		: "r"(ptr), "r"(__val), "0"(__pu_err) \
 		: "r1");				    \
 } while (0)
 
 #define __put_user_asm64(__val,ptr) do {	    	    \
-	u64 __val64 = (u64)(__val);			    \
-	u32 hi = (__val64) >> 32;			    \
-	u32 lo = (__val64) & 0xffffffff;		    \
 	__asm__ __volatile__ (				    \
 		"\n1:\tstw %2,0(%%sr3,%1)"		    \
-		"\n2:\tstw %3,4(%%sr3,%1)\n\t"		    \
+		"\n2:\tstw %R2,4(%%sr3,%1)\n\t"		    \
 		ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\
 		ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
+		: "r"(ptr), "r"(__val), "0"(__pu_err) \
 		: "r1");				    \
 } while (0)
 
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 4b12890..83ded26 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -421,14 +421,11 @@ void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 	/* Note: purge_tlb_entries can be called at startup with
 	   no context.  */
 
-	/* Disable preemption while we play with %sr1.  */
-	preempt_disable();
-	mtsp(mm->context, 1);
 	purge_tlb_start(flags);
+	mtsp(mm->context, 1);
 	pdtlb(addr);
 	pitlb(addr);
 	purge_tlb_end(flags);
-	preempt_enable();
 }
 EXPORT_SYMBOL(purge_tlb_entries);
 
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index 6795dc6..568b2c6 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -120,11 +120,13 @@ extern void __ashrdi3(void);
 extern void __ashldi3(void);
 extern void __lshrdi3(void);
 extern void __muldi3(void);
+extern void __ucmpdi2(void);
 
 EXPORT_SYMBOL(__ashrdi3);
 EXPORT_SYMBOL(__ashldi3);
 EXPORT_SYMBOL(__lshrdi3);
 EXPORT_SYMBOL(__muldi3);
+EXPORT_SYMBOL(__ucmpdi2);
 
 asmlinkage void * __canonicalize_funcptr_for_compare(void *);
 EXPORT_SYMBOL(__canonicalize_funcptr_for_compare);
diff --git a/arch/parisc/lib/Makefile b/arch/parisc/lib/Makefile
index 5f2e690..5651536 100644
--- a/arch/parisc/lib/Makefile
+++ b/arch/parisc/lib/Makefile
@@ -2,6 +2,7 @@
 # Makefile for parisc-specific library files
 #
 
-lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o
+lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o \
+	   ucmpdi2.o
 
 obj-y	:= iomap.o
diff --git a/arch/parisc/lib/ucmpdi2.c b/arch/parisc/lib/ucmpdi2.c
new file mode 100644
index 0000000..149c016
--- /dev/null
+++ b/arch/parisc/lib/ucmpdi2.c
@@ -0,0 +1,25 @@
+#include <linux/module.h>
+
+union ull_union {
+	unsigned long long ull;
+	struct {
+		unsigned int high;
+		unsigned int low;
+	} ui;
+};
+
+int __ucmpdi2(unsigned long long a, unsigned long long b)
+{
+	union ull_union au = {.ull = a};
+	union ull_union bu = {.ull = b};
+
+	if (au.ui.high < bu.ui.high)
+		return 0;
+	else if (au.ui.high > bu.ui.high)
+		return 2;
+	if (au.ui.low < bu.ui.low)
+		return 0;
+	else if (au.ui.low > bu.ui.low)
+		return 2;
+	return 1;
+}

From - Thu Nov 08 21:09:09 2018
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Path: news.gmane.org!not-for-mail
From: Ulrich Teichert <krypton@ulrich-teichert.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Gentoo boot on C8000 (was: Re: PARISC Linux website and status
Date: Fri, 26 Apr 2013 21:57:39 +0200 (MEST)
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Hi,

me again - sorry for pestering the list again, but this:

[snip]
>[   15.020000] Fusion MPT base driver 3.04.20
>[   15.072000] Copyright (c) 1999-2008 LSI Corporation
>[   15.136000] Fusion MPT SPI Host driver 3.04.20
>[   15.220000] mptbase: ioc0: Initiating bringup
>[   15.760000] ioc0: LSI53C1030 B2: Capabilities={Initiator,Target}
>[   16.328000] scsi0 : ioc0: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=66
>[   43.872000] mptscsih: ioc0: attempting task abort! (sc=000000007f29e300)
>[   43.960000] scsi 0:0:6:0: CDB: 
>[   44.000000] cdb[0]=0x12: 12 00 00 00 24 00
>[   54.176000] mptscsih: ioc0: WARNING - Issuing Reset from mptscsih_IssueTaskMgmt!! doorbell=0x24000000
>[   55.584000] mptscsih: ioc0: task abort: SUCCESS (rv=2002) (sc=000000007f29e300)
>[   55.680000] scsi target0:0:6: asynchronous
>[   55.928000] mptscsih: ioc0: attempting target reset! (sc=000000007f29e300)
[etc]

Turned out to be a broken disk which blocked the SCSI-bus! Once I pulled it,
the remaining disk got recognized just fine from the experimental gentoo
install CD (from http://distfiles.gentoo.org/experimental/hppa/livecd).

Sorry for the fuss and thanks for helping me to see the obvious,
CU,
Uli
-- 
Dipl. Inf. Ulrich Teichert|e-mail: Ulrich.Teichert@gmx.de | Listening to:
Stormweg 24               |Pale Bride (The Von Bondies), Slip Away (Sedatives)
24539 Neumuenster, Germany|Sacred Decay (The Estranged), She's Lost Control
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From - Thu Nov 08 21:09:10 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: increase kernel stack size to 32k
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* James Bottomley <James.Bottomley@HansenPartnership.com>:
> On Wed, 2013-04-24 at 09:33 +0200, Helge Deller wrote:
> > On 04/23/2013 10:22 PM, Helge Deller wrote:
> > > commit e4e1e78facf7565cada909a69c7fb6415b6e7b83
> > > Author: Helge Deller <deller@gmx.de>
> > > Date:   Tue Apr 23 17:19:37 2013 +0200
> > > 
> > > parisc: increase kernel stack size to 32k
> > > 
> > > --- a/arch/parisc/include/asm/thread_info.h
> > > +++ b/arch/parisc/include/asm/thread_info.h
> > > -#define THREAD_SIZE_ORDER            2
> > > +#define THREAD_SIZE_ORDER            3	/* 32k stack */
> > 
> > I tested again, and it actually needs to be 64k stacks to not crash any longer.
> > So, the right temporary fix is:
> > 
> > > +#define THREAD_SIZE_ORDER            4	/* 64k stack */
> > 
> > Will send updated patch soon.
> 
> This is an indicator of something seriously wrong somewhere.  We've
> always had the 16k stack just because of our large frames.  In theory,
> the IRQ stack should only be the same size as the kernel stack, so if we
> have both in the same place, we should only need at max 32k ... if we're
> still seeing problems related to stack overrun, then it might be we have
> an IRQ recursion where we shouldn't have.  To be honest, I have a hard
> time explaining why our stacks should be over 8k.


You are probably right.

Below is now a first implementation to support IRQ stacks for parisc.

I booted it successfully on 32- and 64bit kernels. 
Uncommenting the WARN_ON_ONCE(1) will show that the stacks get activated.
As a nice feature we now have CONFIG_DEBUG_STACKOVERFLOW as well, which
should help us to find the problematic functions (if there are any).

I have not tested it with my testcases yet, but if people want to play,
here it is...

Helge


 Kconfig.debug             |   11 ++++++
 include/asm/irq.h         |    2 +
 include/asm/processor.h   |   17 ++++++++--
 include/asm/thread_info.h |    2 -
 kernel/entry.S            |   22 ++++++++++++
 kernel/irq.c              |   78
+++++++++++++++++++++++++++++++++++++++++++++-
 6 files changed, 128 insertions(+), 4 deletions(-)



diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 7305ac8..ed88c37 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -12,6 +12,17 @@ config DEBUG_RODATA
          portion of the kernel code won't be covered by a TLB anymore.
          If in doubt, say "N".
 
+config DEBUG_STACKOVERFLOW
+	bool "Check for stack overflows"
+	depends on DEBUG_KERNEL
+	---help---
+	  Say Y here if you want to check the overflows of kernel, IRQ
+	  and exception stacks. This option will cause messages of the
+	  stacks in detail when free stack space drops below a certain
+	  limit.
+	  If in doubt, say "N".
+
+
 config DEBUG_STRICT_USER_COPY_CHECKS
 	bool "Strict copy size checks"
 	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
diff --git a/arch/parisc/include/asm/irq.h b/arch/parisc/include/asm/irq.h
index 1073599..0417ebf 100644
--- a/arch/parisc/include/asm/irq.h
+++ b/arch/parisc/include/asm/irq.h
@@ -10,6 +10,8 @@
 #include <linux/cpumask.h>
 #include <asm/types.h>
 
+#define __ARCH_HAS_DO_SOFTIRQ
+
 #define NO_IRQ		(-1)
 
 #ifdef CONFIG_GSC
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 09b54a5..1c126c6 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -20,8 +20,6 @@
 
 #endif /* __ASSEMBLY__ */
 
-#define KERNEL_STACK_SIZE 	(4*PAGE_SIZE)
-
 /*
  * Default implementation of macro that returns current
  * instruction pointer ("program counter").
@@ -60,6 +58,21 @@
 
 #ifndef __ASSEMBLY__
 
+#ifdef __KERNEL__
+
+/*
+ * IRQ STACK - used for irq and irq bh handler
+ */
+#define IRQ_STACK_SIZE (4096 * 4) // PAGE_SIZE
+
+union irq_stack_union {
+	unsigned long irq_stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
+};
+
+DECLARE_PER_CPU(union irq_stack_union, irq_stack_union);
+DECLARE_PER_CPU(unsigned int, irq_count);
+#endif /* __KERNEL__ */
+
 /*
  * Data detected about CPUs at boot time which is the same for all CPU's.
  * HP boxes are SMP - ie identical processors.
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index d1fb79a..8642ea8 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -40,7 +40,7 @@ struct thread_info {
 
 /* thread information allocation */
 
-#define THREAD_SIZE_ORDER            2
+#define THREAD_SIZE_ORDER            2 /* keep on 2 for 16k */
 /* Be sure to hunt all references to this down when you change the size of
  * the kernel stack */
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_SIZE_ORDER)
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index f33201b..117d516 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1997,6 +1997,28 @@ ftrace_stub:
 ENDPROC(return_to_handler)
 #endif	/* CONFIG_FUNCTION_TRACER */
 
+/* void call_on_stack(unsigned long param1, void *func, unsigned long new_stack) */
+ENTRY(call_on_stack)
+	STREG	%sp, 8(%arg2)
+	STREG	%rp, 16(%arg2)
+
+	/* HPPA calling convention for function pointers */
+#ifdef CONFIG_64BIT
+	LDREG	16(%arg1), %arg1
+	bve,l	(%arg1), %rp
+	addi    0x40, %arg2, %sp
+#else
+	addi    0x40, %arg2, %sp
+	be,l	0(%sr4,%arg1), %sr0, %r31
+	copy	%r31, %rp
+#endif
+
+	addi    -0x40, %sp, %sp
+	LDREG	16(%sp),%rp
+	bv	(%rp)
+	LDREG	8(%sp),%sp
+ENDPROC(call_on_stack)
+
 
 get_register:
 	/*
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 8094d3e..d864057 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -330,6 +330,60 @@ static inline int eirr_to_irq(unsigned long eirr)
 	return (BITS_PER_LONG - bit) + TIMER_IRQ;
 }
 
+
+int sysctl_panic_on_stackoverflow __read_mostly;
+
+/*
+ * Stack overflow check:
+ */
+static inline void stack_overflow_check(unsigned long sp, unsigned long stack_start, unsigned long stack_size)
+{
+#ifdef CONFIG_DEBUG_STACKOVERFLOW
+#define STACK_MARGIN	256
+	if (sp >= stack_start && sp < (stack_start + stack_size - STACK_MARGIN))
+		return;
+
+	WARN_ONCE(1, "do_IRQ(): %s has overflown a kernel stack (sp:%lx, irq stk bottom-top:%lx-%lx)\n",
+		current->comm, sp,
+		stack_start, stack_start + stack_size);
+
+	if (sysctl_panic_on_stackoverflow)
+		panic("low stack detected by irq handler - check messages\n");
+#endif
+}
+
+extern void call_on_stack(unsigned long param1, void *func, unsigned long new_stack); /* in entry.S */
+
+#define current_stack_pointer() ({ unsigned long sp; asm volatile ("copy %%r30, %0" : "=r"(sp)); (sp); })
+
+static void noinline execute_on_irq_stack(void *func, unsigned long param1)
+{
+	int cpu = smp_processor_id();
+	unsigned long sp, irq_stack;
+	void (*direct_call)(unsigned long param1) = func;
+
+	irq_stack = (unsigned long) &per_cpu(irq_stack_union, cpu);
+	sp = current_stack_pointer();
+
+	/*
+	 * this is where we try to switch to the IRQ stack. However, if we are
+	 * already using the IRQ stack (because we interrupted a hardirq
+	 * handler) we can't do that and just have to keep using the
+	 * current stack (which is the irq stack already after all)
+	 */
+
+	if ((sp - irq_stack) >= sizeof(union irq_stack_union)) {
+		stack_overflow_check(sp, (unsigned long)task_stack_page(current), THREAD_SIZE);
+		call_on_stack(param1, func, irq_stack);
+		// WARN_ON_ONCE(1); /* enable to check if irq stack is being used. */
+		// TODO: check if backtrace works from irq stack
+	} else {
+		stack_overflow_check(sp,  irq_stack, IRQ_STACK_SIZE);
+		direct_call(param1);
+	}
+
+}
+
 /* ONLY called from entry.S:intr_extint() */
 void do_cpu_irq_mask(struct pt_regs *regs)
 {
@@ -364,7 +418,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 		goto set_out;
 	}
 #endif
-	generic_handle_irq(irq);
+	execute_on_irq_stack(&generic_handle_irq, irq);
 
  out:
 	irq_exit();
@@ -423,3 +477,25 @@ void __init init_IRQ(void)
 
 }
 
+
+DEFINE_PER_CPU(union irq_stack_union, irq_stack_union);
+
+asmlinkage void do_softirq(void)
+{
+	__u32 pending;
+	unsigned long flags;
+
+	if (in_interrupt())
+		return;
+
+	local_irq_save(flags);
+
+	pending = local_softirq_pending();
+
+	/* Switch to interrupt stack */
+	if (pending) {
+		execute_on_irq_stack(&__do_softirq, 0);
+		WARN_ON_ONCE(softirq_count());
+	}
+	local_irq_restore(flags);
+}

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From - Thu Nov 08 21:09:10 2018
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From: Zhao Hongjiang <zhaohongjiang@huawei.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: remove the second argument of kmap_atomic
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kmap_atomic allows only one argument now, just move the second.

Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com>
---
 arch/parisc/kernel/cache.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 4b12890..6df734a 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -609,7 +609,7 @@ void clear_user_highpage(struct page *page, unsigned long vaddr)
 	/* Clear using TMPALIAS region.  The page doesn't need to
 	   be flushed but the kernel mapping needs to be purged.  */
 
-	vto = kmap_atomic(page, KM_USER0);
+	vto = kmap_atomic(page);
 
 	/* The PA-RISC 2.0 Architecture book states on page F-6:
 	   "Before a write-capable translation is enabled, *all*
@@ -644,8 +644,8 @@ void copy_user_highpage(struct page *to, struct page *from,
 	   the `to' page must be flushed in copy_user_page_asm since
 	   it can be used to bring in executable code.  */
 
-	vfrom = kmap_atomic(from, KM_USER0);
-	vto = kmap_atomic(to, KM_USER1);
+	vfrom = kmap_atomic(from);
+	vto = kmap_atomic(to);
 
 	purge_kernel_dcache_page_asm((unsigned long)vto);
 	purge_tlb_start(flags);
-- 
1.7.1

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Zhao Hongjiang wrote:
> kmap_atomic allows only one argument now, just move the second.

Do you mean "remove"?
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Subject: Re: [PATCH] parisc: increase kernel stack size to 32k
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On 04/27/2013 12:30 AM, Helge Deller wrote:
> * James Bottomley <James.Bottomley@HansenPartnership.com>:
>> On Wed, 2013-04-24 at 09:33 +0200, Helge Deller wrote:
>>> On 04/23/2013 10:22 PM, Helge Deller wrote:
>>>> commit e4e1e78facf7565cada909a69c7fb6415b6e7b83
>>>> Author: Helge Deller <deller@gmx.de>
>>>> Date:   Tue Apr 23 17:19:37 2013 +0200
>>>>
>>>> parisc: increase kernel stack size to 32k
>>>>
>>>> --- a/arch/parisc/include/asm/thread_info.h
>>>> +++ b/arch/parisc/include/asm/thread_info.h
>>>> -#define THREAD_SIZE_ORDER            2
>>>> +#define THREAD_SIZE_ORDER            3	/* 32k stack */
>>>
>>> I tested again, and it actually needs to be 64k stacks to not crash any longer.
>>> So, the right temporary fix is:
>>>
>>>> +#define THREAD_SIZE_ORDER            4	/* 64k stack */
>>>
>>> Will send updated patch soon.
>>
>> This is an indicator of something seriously wrong somewhere.  We've
>> always had the 16k stack just because of our large frames.  In theory,
>> the IRQ stack should only be the same size as the kernel stack, so if we
>> have both in the same place, we should only need at max 32k ... if we're
>> still seeing problems related to stack overrun, then it might be we have
>> an IRQ recursion where we shouldn't have.  To be honest, I have a hard
>> time explaining why our stacks should be over 8k.

Attached is a new version of my irq-stack-patch, which made my system really stable :-)
As test I did used "hackbench 300" (from the LTP project) which created 12000 threads:
uptime: 23:44:09 up 17 min,  2 users,  load average: 1232.23, 2966.09, 2466.39

My findings so far:
* kernel stack: THREAD_SIZE_ORDER needs to be at least 2 (=16k). x86 has 1 (8k).
  With 8k kernel stacks and  DEBUG_STACKOVERFLOW enabled, I get directly after bootup: 
stackcheck: swapper/0 has overflown a kernel stack (sp:bfc52030, stk bottom-top:bfc50000-bfc52000)

* IRQ stack: 16k seems sufficient as well.

So, the combination of 16k kernel stack and 16k irq stacks seems OK.

I still need to clean up my patch, test if backtraces still work (with which I currently
have problems) and prepare a final patch. 

Helge

--------------000209020801060300070501
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diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 7305ac8..ed88c37 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -12,6 +12,17 @@ config DEBUG_RODATA
          portion of the kernel code won't be covered by a TLB anymore.
          If in doubt, say "N".
 
+config DEBUG_STACKOVERFLOW
+	bool "Check for stack overflows"
+	depends on DEBUG_KERNEL
+	---help---
+	  Say Y here if you want to check the overflows of kernel, IRQ
+	  and exception stacks. This option will cause messages of the
+	  stacks in detail when free stack space drops below a certain
+	  limit.
+	  If in doubt, say "N".
+
+
 config DEBUG_STRICT_USER_COPY_CHECKS
 	bool "Strict copy size checks"
 	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
diff --git a/arch/parisc/include/asm/irq.h b/arch/parisc/include/asm/irq.h
index 1073599..0417ebf 100644
--- a/arch/parisc/include/asm/irq.h
+++ b/arch/parisc/include/asm/irq.h
@@ -10,6 +10,8 @@
 #include <linux/cpumask.h>
 #include <asm/types.h>
 
+#define __ARCH_HAS_DO_SOFTIRQ
+
 #define NO_IRQ		(-1)
 
 #ifdef CONFIG_GSC
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 09b54a5..d725591 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -20,8 +20,6 @@
 
 #endif /* __ASSEMBLY__ */
 
-#define KERNEL_STACK_SIZE 	(4*PAGE_SIZE)
-
 /*
  * Default implementation of macro that returns current
  * instruction pointer ("program counter").
@@ -33,6 +31,8 @@
 #endif
 #define current_text_addr() ({ void *pc; current_ia(pc); pc; })
 
+#define get_current_sp(sp)	__asm__("copy %%r30, %0" : "=r"(sp))
+
 #define TASK_SIZE_OF(tsk)       ((tsk)->thread.task_size)
 #define TASK_SIZE	        TASK_SIZE_OF(current)
 #define TASK_UNMAPPED_BASE      (current->thread.map_base)
@@ -61,6 +61,20 @@
 #ifndef __ASSEMBLY__
 
 /*
+ * IRQ STACK - used for irq and irq bh handler
+ */
+#ifdef __KERNEL__
+
+#define IRQ_STACK_SIZE (4096 << 2) /* = 16k, todo: use: PAGE_SIZE instead of 4096 */
+
+union irq_stack_union {
+	unsigned long irq_stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
+};
+
+DECLARE_PER_CPU(union irq_stack_union, irq_stack_union);
+#endif /* __KERNEL__ */
+
+/*
  * Data detected about CPUs at boot time which is the same for all CPU's.
  * HP boxes are SMP - ie identical processors.
  *
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index d1fb79a..85568cc 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -40,7 +40,7 @@ struct thread_info {
 
 /* thread information allocation */
 
-#define THREAD_SIZE_ORDER            2
+#define THREAD_SIZE_ORDER            2 /* keep value 2 for 16k, use 3 for 32k */
 /* Be sure to hunt all references to this down when you change the size of
  * the kernel stack */
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_SIZE_ORDER)
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index f33201b..117d516 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1997,6 +1997,28 @@ ftrace_stub:
 ENDPROC(return_to_handler)
 #endif	/* CONFIG_FUNCTION_TRACER */
 
+/* void call_on_stack(unsigned long param1, void *func, unsigned long new_stack) */
+ENTRY(call_on_stack)
+	STREG	%sp, 8(%arg2)
+	STREG	%rp, 16(%arg2)
+
+	/* HPPA calling convention for function pointers */
+#ifdef CONFIG_64BIT
+	LDREG	16(%arg1), %arg1
+	bve,l	(%arg1), %rp
+	addi    0x40, %arg2, %sp
+#else
+	addi    0x40, %arg2, %sp
+	be,l	0(%sr4,%arg1), %sr0, %r31
+	copy	%r31, %rp
+#endif
+
+	addi    -0x40, %sp, %sp
+	LDREG	16(%sp),%rp
+	bv	(%rp)
+	LDREG	8(%sp),%sp
+ENDPROC(call_on_stack)
+
 
 get_register:
 	/*
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 8094d3e..6c23120 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -330,6 +330,60 @@ static inline int eirr_to_irq(unsigned long eirr)
 	return (BITS_PER_LONG - bit) + TIMER_IRQ;
 }
 
+
+int sysctl_panic_on_stackoverflow __read_mostly;
+
+/*
+ * Stack overflow check:
+ */
+static inline void stack_overflow_check(unsigned long sp, unsigned long stack_start,
+			unsigned long stack_size, const char *stackname)
+{
+#ifdef CONFIG_DEBUG_STACKOVERFLOW
+#define STACK_MARGIN	128
+	if (likely((sp - stack_start) < (stack_size - STACK_MARGIN)))
+		return;
+
+	WARN("stackcheck: %s has overflown the %s stack (sp:%lx, stk bottom-top:%lx-%lx)\n",
+		current->comm, stackname, sp,
+		stack_start, stack_start + stack_size);
+
+	if (sysctl_panic_on_stackoverflow)
+		panic("low stack detected by irq handler - check messages\n");
+#endif
+}
+
+extern void call_on_stack(unsigned long param1, void *func, unsigned long new_stack); /* in entry.S */
+
+
+static void noinline execute_on_irq_stack(void *func, unsigned long param1)
+{
+	int cpu = smp_processor_id();
+	unsigned long sp, irq_stack;
+	void (*direct_call)(unsigned long param1) = func;
+
+	irq_stack = (unsigned long) &per_cpu(irq_stack_union, cpu);
+	get_current_sp(sp);
+
+	/*
+	 * this is where we try to switch to the IRQ stack. However, if we are
+	 * already using the IRQ stack (because we interrupted a hardirq
+	 * handler) we can't do that and just have to keep using the
+	 * current stack (which is the irq stack already after all)
+	 */
+
+	if ((sp - irq_stack) >= IRQ_STACK_SIZE) {
+		stack_overflow_check(sp, (unsigned long)task_stack_page(current), THREAD_SIZE, "kernel");
+		call_on_stack(param1, func, irq_stack);
+		// WARN_ON_ONCE(1); /* enable to check if irq stack is being used. */
+		// TODO: check if backtrace works from irq stack
+		// TODO: use get_current_sp() macro in other code as well.
+	} else {
+		stack_overflow_check(sp,  irq_stack, IRQ_STACK_SIZE, "irq");
+		direct_call(param1);
+	}
+}
+
 /* ONLY called from entry.S:intr_extint() */
 void do_cpu_irq_mask(struct pt_regs *regs)
 {
@@ -364,7 +418,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 		goto set_out;
 	}
 #endif
-	generic_handle_irq(irq);
+	execute_on_irq_stack(&generic_handle_irq, irq);
 
  out:
 	irq_exit();
@@ -423,3 +477,24 @@ void __init init_IRQ(void)
 
 }
 
+DEFINE_PER_CPU(union irq_stack_union, irq_stack_union);
+
+asmlinkage void do_softirq(void)
+{
+	__u32 pending;
+	unsigned long flags;
+
+	if (in_interrupt())
+		return;
+
+	local_irq_save(flags);
+
+	pending = local_softirq_pending();
+
+	/* Switch to interrupt stack */
+	if (pending) {
+		execute_on_irq_stack(&__do_softirq, 0);
+		WARN_ON_ONCE(softirq_count());
+	}
+	local_irq_restore(flags);
+}

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On 27-Apr-13, at 5:53 PM, Helge Deller wrote:

> On 04/27/2013 12:30 AM, Helge Deller wrote:
>> * James Bottomley <James.Bottomley@HansenPartnership.com>:
>>> On Wed, 2013-04-24 at 09:33 +0200, Helge Deller wrote:
>>>> On 04/23/2013 10:22 PM, Helge Deller wrote:
>>>>> commit e4e1e78facf7565cada909a69c7fb6415b6e7b83
>>>>> Author: Helge Deller <deller@gmx.de>
>>>>> Date:   Tue Apr 23 17:19:37 2013 +0200
>>>>>
>>>>> parisc: increase kernel stack size to 32k
>>>>>
>>>>> --- a/arch/parisc/include/asm/thread_info.h
>>>>> +++ b/arch/parisc/include/asm/thread_info.h
>>>>> -#define THREAD_SIZE_ORDER            2
>>>>> +#define THREAD_SIZE_ORDER            3	/* 32k stack */
>>>>
>>>> I tested again, and it actually needs to be 64k stacks to not  
>>>> crash any longer.
>>>> So, the right temporary fix is:
>>>>
>>>>> +#define THREAD_SIZE_ORDER            4	/* 64k stack */
>>>>
>>>> Will send updated patch soon.
>>>
>>> This is an indicator of something seriously wrong somewhere.  We've
>>> always had the 16k stack just because of our large frames.  In  
>>> theory,
>>> the IRQ stack should only be the same size as the kernel stack, so  
>>> if we
>>> have both in the same place, we should only need at max 32k ... if  
>>> we're
>>> still seeing problems related to stack overrun, then it might be  
>>> we have
>>> an IRQ recursion where we shouldn't have.  To be honest, I have a  
>>> hard
>>> time explaining why our stacks should be over 8k.
>
> Attached is a new version of my irq-stack-patch, which made my  
> system really stable :-)
> As test I did used "hackbench 300" (from the LTP project) which  
> created 12000 threads:
> uptime: 23:44:09 up 17 min,  2 users,  load average: 1232.23,  
> 2966.09, 2466.39
>
> My findings so far:
> * kernel stack: THREAD_SIZE_ORDER needs to be at least 2 (=16k). x86  
> has 1 (8k).
>  With 8k kernel stacks and  DEBUG_STACKOVERFLOW enabled, I get  
> directly after bootup:
> stackcheck: swapper/0 has overflown a kernel stack (sp:bfc52030, stk  
> bottom-top:bfc50000-bfc52000)
>
> * IRQ stack: 16k seems sufficient as well.
>
> So, the combination of 16k kernel stack and 16k irq stacks seems OK.
>
> I still need to clean up my patch, test if backtraces still work  
> (with which I currently
> have problems) and prepare a final patch.


So far, I haven't been able to break the first version of the irqstack  
patch.  It's working far better than
setting THREAD_SIZE_ORDER to 4.  There were various application errors  
with the latter.  Building
new version.

I have the following comments:

+#define get_current_sp(sp)	__asm__("copy %%r30, %0" : "=r"(sp))

Probably, should be __asm__ __volatile__.  I'm not sure that all changes
to the stack pointer are known to GCC.

+/* void call_on_stack(unsigned long param1, void *func, unsigned long  
new_stack) */
+ENTRY(call_on_stack)
+	STREG	%sp, 8(%arg2)
+	STREG	%rp, 16(%arg2)
+
+	/* HPPA calling convention for function pointers */
+#ifdef CONFIG_64BIT
+	LDREG	16(%arg1), %arg1
+	bve,l	(%arg1), %rp
+	addi    0x40, %arg2, %sp
+#else
+	addi    0x40, %arg2, %sp
+	be,l	0(%sr4,%arg1), %sr0, %r31
+	copy	%r31, %rp
+#endif
+
+	addi    -0x40, %sp, %sp
+	LDREG	16(%sp),%rp
+	bv	(%rp)
+	LDREG	8(%sp),%sp
+ENDPROC(call_on_stack)

This doesn't full adhere to calling conventions but may work in  
limited circumstances.  For
example, 64-bit calls nominally require setup of the argument  
pointer.  There's also save
and restore of the PIC register if it can be modified.

Dave
--
John David Anglin	dave.anglin@bell.net



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On 2013/4/27 19:43, Rolf Eike Beer wrote:
> Zhao Hongjiang wrote:
>> kmap_atomic allows only one argument now, just move the second.
> 
> Do you mean "remove"?
> 
yes, this should be "remove".

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Subject: Re: [PATCH] parisc: remove the second argument of kmap_atomic
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On 04/27/2013 12:42 PM, Zhao Hongjiang wrote:
> kmap_atomic allows only one argument now, just move the second.
> 
> Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com>

Thanks!
Queued up in parisc tree for 3.10.

Helge


> ---
>  arch/parisc/kernel/cache.c |    6 +++---
>  1 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
> index 4b12890..6df734a 100644
> --- a/arch/parisc/kernel/cache.c
> +++ b/arch/parisc/kernel/cache.c
> @@ -609,7 +609,7 @@ void clear_user_highpage(struct page *page, unsigned long vaddr)
>  	/* Clear using TMPALIAS region.  The page doesn't need to
>  	   be flushed but the kernel mapping needs to be purged.  */
>  
> -	vto = kmap_atomic(page, KM_USER0);
> +	vto = kmap_atomic(page);
>  
>  	/* The PA-RISC 2.0 Architecture book states on page F-6:
>  	   "Before a write-capable translation is enabled, *all*
> @@ -644,8 +644,8 @@ void copy_user_highpage(struct page *to, struct page *from,
>  	   the `to' page must be flushed in copy_user_page_asm since
>  	   it can be used to bring in executable code.  */
>  
> -	vfrom = kmap_atomic(from, KM_USER0);
> -	vto = kmap_atomic(to, KM_USER1);
> +	vfrom = kmap_atomic(from);
> +	vto = kmap_atomic(to);
>  
>  	purge_kernel_dcache_page_asm((unsigned long)vto);
>  	purge_tlb_start(flags);
> 

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Subject: Re: [RFC/PATCH 3/4] parisc: Provide default implementation for dma_{alloc,free}_attrs
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On 04/22/2013 07:10 AM, Damian Hobson-Garcia wrote:
> Most architectures that define CONFIG_HAVE_DMA, have implementations for
> both dma_alloc_attrs() and dma_free_attrs().  All achitectures that do
> not define CONFIG_HAVE_DMA also have both of these definitions provided by
> dma-mapping-broken.h.
> 
> Add default implementations for these functions on parisc.
> 
> Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>

Thanks!
Queued up in the parisc tree for 3.10

Helge

> ---
>  arch/parisc/include/asm/dma-mapping.h |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
> index 106b395..d0eae5f 100644
> --- a/arch/parisc/include/asm/dma-mapping.h
> +++ b/arch/parisc/include/asm/dma-mapping.h
> @@ -46,6 +46,9 @@ extern struct hppa_dma_ops pcx_dma_ops;
>  
>  extern struct hppa_dma_ops *hppa_dma_ops;
>  
> +#define dma_alloc_attrs(d, s, h, f, a) dma_alloc_coherent(d, s, h, f)
> +#define dma_free_attrs(d, s, h, f, a) dma_free_coherent(d, s, h, f)
> +
>  static inline void *
>  dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
>  		   gfp_t flag)
> 

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On 04/11/2013 03:30 PM, David Howells wrote:
> Don't use create_proc_read_entry() as that is deprecated, but rather use
> proc_create_data() and seq_file instead.
> 
> Signed-off-by: David Howells <dhowells@redhat.com>
> cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> cc: Helge Deller <deller@gmx.de>
> cc: linux-parisc@vger.kernel.org

Signed-off-by: Helge Deller <deller@gmx.de>

Thanks!
I've queued it up in the parisc tree for 3.10

Helge


> ---
> 
>  arch/parisc/kernel/pdc_chassis.c |   47 +++++++++++++++++++-------------------
>  1 file changed, 24 insertions(+), 23 deletions(-)
> 
> diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c
> index d47ba1a..8fa314f 100644
> --- a/arch/parisc/kernel/pdc_chassis.c
> +++ b/arch/parisc/kernel/pdc_chassis.c
> @@ -30,11 +30,13 @@
>  #endif
>  
>  #include <linux/init.h>
> +#include <linux/module.h>
>  #include <linux/kernel.h>
>  #include <linux/reboot.h>
>  #include <linux/notifier.h>
>  #include <linux/cache.h>
>  #include <linux/proc_fs.h>
> +#include <linux/seq_file.h>
>  
>  #include <asm/pdc_chassis.h>
>  #include <asm/processor.h>
> @@ -244,38 +246,38 @@ int pdc_chassis_send_status(int message)
>  
>  #ifdef CONFIG_PDC_CHASSIS_WARN
>  #ifdef CONFIG_PROC_FS
> -static int pdc_chassis_warn_pread(char *page, char **start, off_t off,
> -		int count, int *eof, void *data)
> +static int pdc_chassis_warn_show(struct seq_file *m, void *v)
>  {
> -	char *out = page;
> -	int len, ret;
>  	unsigned long warn;
>  	u32 warnreg;
>  
> -	ret = pdc_chassis_warn(&warn);
> -	if (ret != PDC_OK)
> +	if (pdc_chassis_warn(&warn) != PDC_OK)
>  		return -EIO;
>  
>  	warnreg = (warn & 0xFFFFFFFF);
>  
>  	if ((warnreg >> 24) & 0xFF)
> -		out += sprintf(out, "Chassis component failure! (eg fan or PSU): 0x%.2x\n", ((warnreg >> 24) & 0xFF));
> -
> -	out += sprintf(out, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
> -	out += sprintf(out, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
> -	out += sprintf(out, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
> -
> -	len = out - page - off;
> -	if (len < count) {
> -		*eof = 1;
> -		if (len <= 0) return 0;
> -	} else {
> -		len = count;
> -	}
> -	*start = page + off;
> -	return len;
> +		seq_printf(m, "Chassis component failure! (eg fan or PSU): 0x%.2x\n",
> +			   (warnreg >> 24) & 0xFF);
> +
> +	seq_printf(m, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
> +	seq_printf(m, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
> +	seq_printf(m, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
> +	return 0;
> +}
> +
> +static int pdc_chassis_warn_open(struct inode *inode, struct file *file)
> +{
> +	return single_open(file, pdc_chassis_warn_show, NULL);
>  }
>  
> +static const struct file_operations pdc_chassis_warn_fops = {
> +	.open		= pdc_chassis_warn_open,
> +	.read		= seq_read,
> +	.llseek		= seq_lseek,
> +	.release	= seq_release,
> +};
> +
>  static int __init pdc_chassis_create_procfs(void)
>  {
>  	unsigned long test;
> @@ -290,8 +292,7 @@ static int __init pdc_chassis_create_procfs(void)
>  
>  	printk(KERN_INFO "Enabling PDC chassis warnings support v%s\n",
>  			PDC_CHASSIS_VER);
> -	create_proc_read_entry("chassis", 0400, NULL, pdc_chassis_warn_pread,
> -				NULL);
> +	proc_create("chassis", 0400, NULL, &pdc_chassis_warn_fops);
>  	return 0;
>  }
>  
> 

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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH 12/26] hp_sdc_rtc: Don't use create_proc_read_entry()
 [RFC]
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To: David Howells <dhowells@redhat.com>
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On 04/11/2013 03:29 PM, David Howells wrote:
> Don't use create_proc_read_entry() as that is deprecated, but rather use
> proc_create_data() and seq_file instead.
> 
> Signed-off-by: David Howells <dhowells@redhat.com>
> cc: Brian S. Julin <bri@calyx.com>
> cc: Helge Deller <deller@gmx.de>
> cc: linux-m68k@lists.linux-m68k.org

Signed-off-by: Helge Deller <deller@gmx.de>


Thanks David,

I've cleaned up a few whitespace issues and queued it up for 3.10 in the parisc tree.

Helge


> ---
> 
>  drivers/input/misc/hp_sdc_rtc.c |   58 +++++++++++++++++----------------------
>  1 file changed, 26 insertions(+), 32 deletions(-)
> 
> diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c
> index 2e3334b..770479d 100644
> --- a/drivers/input/misc/hp_sdc_rtc.c
> +++ b/drivers/input/misc/hp_sdc_rtc.c
> @@ -41,6 +41,7 @@
>  #include <linux/time.h>
>  #include <linux/miscdevice.h>
>  #include <linux/proc_fs.h>
> +#include <linux/seq_file.h>
>  #include <linux/poll.h>
>  #include <linux/rtc.h>
>  #include <linux/mutex.h>
> @@ -74,9 +75,6 @@ static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait);
>  static int hp_sdc_rtc_open(struct inode *inode, struct file *file);
>  static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on);
>  
> -static int hp_sdc_rtc_read_proc(char *page, char **start, off_t off,
> -				int count, int *eof, void *data);
> -
>  static void hp_sdc_rtc_isr (int irq, void *dev_id, 
>  			    uint8_t status, uint8_t data) 
>  {
> @@ -427,22 +425,19 @@ static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on)
>          return fasync_helper (fd, filp, on, &hp_sdc_rtc_async_queue);
>  }
>  
> -static int hp_sdc_rtc_proc_output (char *buf)
> +static int hp_sdc_rtc_proc_show(struct seq_file *m, void *v)
>  {
>  #define YN(bit) ("no")
>  #define NY(bit) ("yes")
> -        char *p;
>          struct rtc_time tm;
>  	struct timeval tv;
>  
>  	memset(&tm, 0, sizeof(struct rtc_time));
>  
> -	p = buf;
> -
>  	if (hp_sdc_rtc_read_bbrtc(&tm)) {
> -		p += sprintf(p, "BBRTC\t\t: READ FAILED!\n");
> +		seq_puts(m, "BBRTC\t\t: READ FAILED!\n");
>  	} else {
> -		p += sprintf(p,
> +		seq_printf(m,
>  			     "rtc_time\t: %02d:%02d:%02d\n"
>  			     "rtc_date\t: %04d-%02d-%02d\n"
>  			     "rtc_epoch\t: %04lu\n",
> @@ -452,41 +447,41 @@ static int hp_sdc_rtc_proc_output (char *buf)
>  	}
>  
>  	if (hp_sdc_rtc_read_rt(&tv)) {
> -		p += sprintf(p, "i8042 rtc\t: READ FAILED!\n");
> +		seq_puts(m, "i8042 rtc\t: READ FAILED!\n");
>  	} else {
> -		p += sprintf(p, "i8042 rtc\t: %ld.%02d seconds\n", 
> +		seq_printf(m, "i8042 rtc\t: %ld.%02d seconds\n", 
>  			     tv.tv_sec, (int)tv.tv_usec/1000);
>  	}
>  
>  	if (hp_sdc_rtc_read_fhs(&tv)) {
> -		p += sprintf(p, "handshake\t: READ FAILED!\n");
> +		seq_puts(m, "handshake\t: READ FAILED!\n");
>  	} else {
> -        	p += sprintf(p, "handshake\t: %ld.%02d seconds\n", 
> +        	seq_printf(m, "handshake\t: %ld.%02d seconds\n", 
>  			     tv.tv_sec, (int)tv.tv_usec/1000);
>  	}
>  
>  	if (hp_sdc_rtc_read_mt(&tv)) {
> -		p += sprintf(p, "alarm\t\t: READ FAILED!\n");
> +		seq_puts(m, "alarm\t\t: READ FAILED!\n");
>  	} else {
> -		p += sprintf(p, "alarm\t\t: %ld.%02d seconds\n", 
> +		seq_printf(m, "alarm\t\t: %ld.%02d seconds\n", 
>  			     tv.tv_sec, (int)tv.tv_usec/1000);
>  	}
>  
>  	if (hp_sdc_rtc_read_dt(&tv)) {
> -		p += sprintf(p, "delay\t\t: READ FAILED!\n");
> +		seq_puts(m, "delay\t\t: READ FAILED!\n");
>  	} else {
> -		p += sprintf(p, "delay\t\t: %ld.%02d seconds\n", 
> +		seq_printf(m, "delay\t\t: %ld.%02d seconds\n", 
>  			     tv.tv_sec, (int)tv.tv_usec/1000);
>  	}
>  
>  	if (hp_sdc_rtc_read_ct(&tv)) {
> -		p += sprintf(p, "periodic\t: READ FAILED!\n");
> +		seq_puts(m, "periodic\t: READ FAILED!\n");
>  	} else {
> -		p += sprintf(p, "periodic\t: %ld.%02d seconds\n", 
> +		seq_printf(m, "periodic\t: %ld.%02d seconds\n", 
>  			     tv.tv_sec, (int)tv.tv_usec/1000);
>  	}
>  
> -        p += sprintf(p,
> +        seq_printf(m,
>                       "DST_enable\t: %s\n"
>                       "BCD\t\t: %s\n"
>                       "24hr\t\t: %s\n"
> @@ -506,23 +501,23 @@ static int hp_sdc_rtc_proc_output (char *buf)
>                       1UL,
>                       1 ? "okay" : "dead");
>  
> -        return  p - buf;
> +        return 0;
>  #undef YN
>  #undef NY
>  }
>  
> -static int hp_sdc_rtc_read_proc(char *page, char **start, off_t off,
> -                         int count, int *eof, void *data)
> +static int hp_sdc_rtc_proc_open(struct inode *inode, struct file *file)
>  {
> -	int len = hp_sdc_rtc_proc_output (page);
> -        if (len <= off+count) *eof = 1;
> -        *start = page + off;
> -        len -= off;
> -        if (len>count) len = count;
> -        if (len<0) len = 0;
> -        return len;
> +	return single_open(file, hp_sdc_rtc_proc_show, NULL);
>  }
>  
> +static const struct file_operations hp_sdc_rtc_proc_fops = {
> +	.open		= hp_sdc_rtc_proc_open,
> +	.read		= seq_read,
> +	.llseek		= seq_lseek,
> +	.release	= seq_release,
> +};
> +
>  static int hp_sdc_rtc_ioctl(struct file *file, 
>  			    unsigned int cmd, unsigned long arg)
>  {
> @@ -715,8 +710,7 @@ static int __init hp_sdc_rtc_init(void)
>  	if (misc_register(&hp_sdc_rtc_dev) != 0)
>  		printk(KERN_INFO "Could not register misc. dev for i8042 rtc\n");
>  
> -        create_proc_read_entry ("driver/rtc", 0, NULL,
> -				hp_sdc_rtc_read_proc, NULL);
> +        proc_create("driver/rtc", 0, NULL, &hp_sdc_rtc_proc_fops);
>  
>  	printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support loaded "
>  			 "(RTC v " RTC_VERSION ")\n");
> 

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Subject: [PATCH v2 0/4] dma-mapping: Define dma_{alloc,free}_attrs() for all archs
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Xref: news.gmane.org gmane.linux.kernel:1482890 gmane.linux.ports.arm.kernel:234166 gmane.linux.ports.parisc:4972
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Most architectures that define CONFIG_HAVE_DMA=y, have implementations for
both dma_alloc_attrs() and dma_free_attrs().  All achitectures that do
not define CONFIG_HAVE_DMA also have both of these definitions provided by
dma-mapping-broken.h.

Provide a default definition for the archs that define CONFIG_HAVE_DMA=y,
but have no implementation for dma_{alloc,free}_attrs(). 

As I don't have hardware for any of these systems, the patches are only
compile-tested where I could (arm64, s390) and untested for the archs
where I couldn't find a readily available prebuilt cross-compiler (c6x, parisc).

Changes from v1
---------------

arm64, s390:
 * Since these archs are using dma_ops, pass appropirate value for attrs to 
   dma_ops->alloc().
 * Indicate that these patches are compile teseted only (I don't have hardware)


c6x, parisc:
 * Indicate that these patches are untested (I don't have cross compilers)

Cheers,
Damian 


Damian Hobson-Garcia (4):
  arm64: Provide default implementation for dma_{alloc,free}_attrs
  c6x: Provide default implementation for dma_{alloc,free}_attrs
  parisc: Provide default implementation for dma_{alloc,free}_attrs
  s390: Provide default implementation for dma_{alloc,free}_attrs

 arch/arm64/include/asm/dma-mapping.h  |   17 +++++++++++------
 arch/c6x/include/asm/dma-mapping.h    |    3 +++
 arch/parisc/include/asm/dma-mapping.h |    3 +++
 arch/s390/include/asm/dma-mapping.h   |   17 +++++++++++------
 4 files changed, 28 insertions(+), 12 deletions(-)

-- 
1.7.5.4


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Xref: news.gmane.org gmane.linux.ports.parisc:4973 gmane.linux.kernel:1482893
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Most architectures that define CONFIG_HAVE_DMA, have implementations for
both dma_alloc_attrs() and dma_free_attrs().  All achitectures that do
not define CONFIG_HAVE_DMA also have both of these definitions provided by
dma-mapping-broken.h.

Add default implementations for these functions on parisc.

Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
---
 arch/parisc/include/asm/dma-mapping.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 106b395..d0eae5f 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -46,6 +46,9 @@ extern struct hppa_dma_ops pcx_dma_ops;
 
 extern struct hppa_dma_ops *hppa_dma_ops;
 
+#define dma_alloc_attrs(d, s, h, f, a) dma_alloc_coherent(d, s, h, f)
+#define dma_free_attrs(d, s, h, f, a) dma_free_coherent(d, s, h, f)
+
 static inline void *
 dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
 		   gfp_t flag)
-- 
1.7.5.4

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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Error compiling 3.9.0
Date: Tue, 30 Apr 2013 11:37:01 +0200
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--nextPart3483958.orSjGFe6ez
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Compiling for my C8000 (64 bit) failed:

*arch/parisc/kernel/built-in.o: In function `sys_fork_wrapper':
*(.text+0x4dc8): relocation truncated to fit: R_PARISC_PCREL17F against symbol 
`sys_fork' defined in .text.sys_fork section in kernel/built-in.o
*hppa64-unknown-linux-gnu-ld: arch/parisc/kernel/built-in.o(.text+0xllx): 
cannot reach (null)
*arch/parisc/kernel/built-in.o: In function `sys_vfork_wrapper':
*(.text+0x4e1c): relocation truncated to fit: R_PARISC_PCREL17F against symbol 
`sys_vfork' defined in .text.sys_vfork section in kernel/built-in.o
*make: *** [vmlinux] Error 1

This is after I enabled MLONGCALLS, without longcalls it failed, too. I'm now 
trying with binutils 2.23.1 instead of 2.22.

My C3600 (32 bit) doesn't even come that far, I get:

make: hppa-linux-gnu-gcc: Command not found
make: hppa-linux-gnu-gcc: Command not found
/usr/src/linux-3.9.0/scripts/gcc-version.sh: line 25: hppa-linux-gnu-gcc: 
command not found
/usr/src/linux-3.9.0/scripts/gcc-version.sh: line 26: hppa-linux-gnu-gcc: 
command not found
Sorry, GCC v3.3 or above is required to build the kernel.
make: *** [checkbin] Error 1

Any ideas?

Eike
--nextPart3483958.orSjGFe6ez
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#
# Automatically generated file; DO NOT EDIT.
# Linux/parisc 3.9.0 Kernel Configuration
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_LOW_RES=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE="hppa64-unknown-linux-gnu-"
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_FHANDLE=y
# CONFIG_AUDIT is not set
CONFIG_HAVE_GENERIC_HARDIRQS=y

#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
# CONFIG_ALWAYS_USE_PERSISTENT_CLOCK is not set

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
# CONFIG_TASKSTATS is not set

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_PREEMPT_RCU is not set
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_FANOUT=64
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_NOCB_CPU is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=18
# CONFIG_CGROUPS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
CONFIG_UIDGID_CONVERTED=y
CONFIG_UIDGID_STRICT_TYPE_CHECKS=y
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EXPERT is not set
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW=y
CONFIG_KALLSYMS=y
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
CONFIG_USE_GENERIC_SMP_HELPERS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_CLONE_BACKWARDS=y

#
# GCOV-based kernel profiling
#
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_BROKEN_RODATA=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_MLONGCALLS=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_CLEANCACHE=y
CONFIG_FRONTSWAP=y
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_NR_CPUS=2

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
# CONFIG_GSC_LASI is not set
# CONFIG_GSC_WAX is not set
# CONFIG_EISA is not set
CONFIG_PCI=y
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=y
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=m
CONFIG_XFRM_USER=m
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=m
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
CONFIG_INET_UDP_DIAG=y
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
CONFIG_IPV6_PRIVACY=y
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
# CONFIG_IPV6_MIP6 is not set
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_BEET is not set
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=m
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_GRE is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
CONFIG_STP=m
CONFIG_BRIDGE=m
# CONFIG_BRIDGE_IGMP_SNOOPING is not set
# CONFIG_BRIDGE_VLAN_FILTERING is not set
CONFIG_HAVE_NET_DSA=y
CONFIG_VLAN_8021Q=m
# CONFIG_VLAN_8021Q_GVRP is not set
# CONFIG_VLAN_8021Q_MVRP is not set
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
CONFIG_DNS_RESOLVER=y
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
CONFIG_BQL=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
# CONFIG_DEVTMPFS_MOUNT is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
# CONFIG_DMA_SHARED_BUFFER is not set

#
# Bus devices
#
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=4
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_BLK_DEV_SX8 is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=4096
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_RSXX is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_AD525X_DPOT is not set
# CONFIG_PHANTOM is not set
# CONFIG_INTEL_MID_PTI is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ATMEL_SSC is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1780 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_BMP085_I2C is not set
# CONFIG_PCH_PHUB is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_SENSORS_LIS3_I2C is not set

#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=y

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_IDE_GD=y
# CONFIG_IDE_GD_ATA is not set
# CONFIG_IDE_GD_ATAPI is not set
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_IDE_TASK_IOCTL is not set
# CONFIG_IDE_PROC_FS is not set

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8172 is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=y
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
CONFIG_BLK_DEV_SIIMAGE=y
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_SCSI_BNX2X_FCOE is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_LASI700 is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_ZALON is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_CHELSIO_FCOE is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
# CONFIG_ATA is not set
CONFIG_MD=y
# CONFIG_BLK_DEV_MD is not set
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
# CONFIG_DM_THIN_PROVISIONING is not set
# CONFIG_DM_CACHE is not set
CONFIG_DM_MIRROR=m
# CONFIG_DM_RAID is not set
# CONFIG_DM_LOG_USERSPACE is not set
CONFIG_DM_ZERO=m
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_UEVENT is not set
# CONFIG_DM_FLAKEY is not set
# CONFIG_DM_VERITY is not set
# CONFIG_TARGET_CORE is not set
CONFIG_FUSION=y
CONFIG_FUSION_SPI=y
# CONFIG_FUSION_FC is not set
# CONFIG_FUSION_SAS is not set
CONFIG_FUSION_MAX_SGE=128
# CONFIG_FUSION_CTL is not set
# CONFIG_FUSION_LOGGING is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
CONFIG_MII=m
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_VXLAN is not set
CONFIG_NETCONSOLE=m
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set

#
# CAIF transport drivers
#

#
# Distributed Switch Architecture drivers
#
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_MV88E6060 is not set
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
# CONFIG_NET_DSA_MV88E6131 is not set
# CONFIG_NET_DSA_MV88E6123_61_65 is not set
CONFIG_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_CADENCE is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_CALXEDA_XGMAC is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_DNET is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EXAR is not set
# CONFIG_NET_VENDOR_HP is not set
CONFIG_NET_VENDOR_INTEL=y
# CONFIG_E100 is not set
CONFIG_E1000=m
# CONFIG_E1000E is not set
# CONFIG_IGB is not set
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
# CONFIG_IXGBE is not set
# CONFIG_NET_VENDOR_I825XX is not set
# CONFIG_IP1000 is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_PACKET_ENGINE is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_SFC is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
# CONFIG_AT803X_PHY is not set
# CONFIG_AMD_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MDIO_BITBANG is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
CONFIG_KEYBOARD_HIL_OLD=y
# CONFIG_KEYBOARD_HIL is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
# CONFIG_MOUSE_PS2 is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_CYAPA is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
# CONFIG_SERIO_SERPORT is not set
CONFIG_SERIO_GSCPS2=y
# CONFIG_HP_SDC is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
CONFIG_DEVKMEM=y

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
CONFIG_SERIAL_8250_RSA=y
# CONFIG_SERIAL_8250_DW is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MFD_HSU is not set
CONFIG_SERIAL_MUX=m
CONFIG_PDC_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_PCH_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=y

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EG20T is not set
# CONFIG_I2C_INTEL_MID is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PXA_PCI is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set
# CONFIG_HSI is not set

#
# PPS support
#
# CONFIG_PPS is not set

#
# PPS generators support
#

#
# PTP clock support
#
# CONFIG_PTP_1588_CLOCK is not set

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# CONFIG_PTP_1588_CLOCK_PCH is not set
CONFIG_GPIO_DEVRES=y
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_POWER_AVS is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
# CONFIG_SSB_B43_PCI_BRIDGE is not set
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS80031 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_STMPE is not set
# CONFIG_MFD_TC3589X is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_SMSC is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_MAX77686 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_LPC_SCH is not set
# CONFIG_LPC_ICH is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_AS3711 is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
CONFIG_AGP=y
# CONFIG_AGP_PARISC is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_DDC=y
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_WMT_GE_ROPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_STI=y
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
CONFIG_FB_MATROX=y
CONFIG_FB_MATROX_MILLENIUM=y
CONFIG_FB_MATROX_MYSTIQUE=y
CONFIG_FB_MATROX_G=y
# CONFIG_FB_MATROX_I2C is not set
CONFIG_FB_RADEON=y
CONFIG_FB_RADEON_I2C=y
CONFIG_FB_RADEON_BACKLIGHT=y
# CONFIG_FB_RADEON_DEBUG is not set
CONFIG_FB_ATY128=y
CONFIG_FB_ATY128_BACKLIGHT=y
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
CONFIG_FB_VOODOO1=y
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_GOLDFISH is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
# CONFIG_EXYNOS_VIDEO is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=m
# CONFIG_LCD_PLATFORM is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_GENERIC=y
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630 is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LP855X is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_LOGO_PARISC_CLUT224=y
# CONFIG_SOUND is not set

#
# HID support
#
CONFIG_HID=y
# CONFIG_HIDRAW is not set
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y

#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=y
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
CONFIG_HID_CYPRESS=y
CONFIG_HID_DRAGONRISE=y
# CONFIG_DRAGONRISE_FF is not set
# CONFIG_HID_EMS_FF is not set
CONFIG_HID_EZKEY=y
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_KEYTOUCH is not set
CONFIG_HID_KYE=y
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
CONFIG_HID_GYRATION=y
CONFIG_HID_TWINHAN=y
CONFIG_HID_KENSINGTON=y
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LENOVO_TPKBD is not set
CONFIG_HID_LOGITECH=y
# CONFIG_HID_LOGITECH_DJ is not set
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWHEELS_FF is not set
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
# CONFIG_HID_MULTITOUCH is not set
CONFIG_HID_NTRIG=y
CONFIG_HID_ORTEK=y
CONFIG_HID_PANTHERLORD=y
# CONFIG_PANTHERLORD_FF is not set
CONFIG_HID_PETALYNX=y
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEELSERIES is not set
CONFIG_HID_SUNPLUS=y
CONFIG_HID_GREENASIA=y
# CONFIG_GREENASIA_FF is not set
CONFIG_HID_SMARTJOYPLUS=y
# CONFIG_SMARTJOYPLUS_FF is not set
# CONFIG_HID_TIVO is not set
CONFIG_HID_TOPSEED=y
CONFIG_HID_THRUSTMASTER=y
# CONFIG_THRUSTMASTER_FF is not set
CONFIG_HID_ZEROPLUS=y
# CONFIG_ZEROPLUS_FF is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set

#
# USB HID support
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
CONFIG_USB_HIDDEV=y

#
# I2C HID support
#
# CONFIG_I2C_HID is not set
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB_ARCH_HAS_XHCI=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_SSB is not set
# CONFIG_USB_CHIPIDEA is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
CONFIG_USB_STORAGE_DEBUG=y
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HSIC_USB3503 is not set

#
# USB Physical Layer drivers
#
# CONFIG_OMAP_USB3 is not set
# CONFIG_OMAP_CONTROL_USB is not set
# CONFIG_USB_ISP1301 is not set
# CONFIG_USB_RCAR_PHY is not set
# CONFIG_USB_GADGET is not set

#
# OTG and related infrastructure
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
# CONFIG_RTC_DRV_DS2404 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_STAGING is not set

#
# Hardware Spinlock drivers
#
# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set

#
# Rpmsg drivers
#
# CONFIG_VIRT_DRIVERS is not set
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
# CONFIG_IPACK_BUS is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_EXT4_FS=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD=y
CONFIG_JBD2=y
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_FS_POSIX_ACL is not set
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
# CONFIG_MSDOS_FS is not set
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_PSTORE is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_F2FS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
# CONFIG_NFS_FS is not set
# CONFIG_NFSD is not set
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="UTF-8"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=m
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=m

#
# Kernel hacking
#
CONFIG_PRINTK_TIME=y
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
# CONFIG_DEBUG_KERNEL is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y

#
# RCU Debugging
#
# CONFIG_SPARSE_RCU_POINTER is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_SAMPLES is not set
# CONFIG_TEST_KSTRTOX is not set

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_ENCRYPTED_KEYS is not set
# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=m
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=m
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=m
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=m
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=m
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_USER_API_SKCIPHER=y
# CONFIG_CRYPTO_HW is not set
# CONFIG_ASYMMETRIC_KEY_TYPE is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_NLATTR=y
# CONFIG_AVERAGE is not set
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set

--nextPart3483958.orSjGFe6ez--

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From - Thu Nov 08 21:09:11 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Error compiling 3.9.0
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 4/30/2013 10:02 AM, Rolf Eike Beer wrote:
> Am 30.04.2013 15:00, schrieb John David Anglin:
>> On 30-Apr-13, at 5:37 AM, Rolf Eike Beer wrote:
>>
>>> Compiling for my C8000 (64 bit) failed:
>>>
>>> *arch/parisc/kernel/built-in.o: In function `sys_fork_wrapper':
>>> *(.text+0x4dc8): relocation truncated to fit: R_PARISC_PCREL17F  
>>> against symbol
>>> `sys_fork' defined in .text.sys_fork section in kernel/built-in.o
>>> *hppa64-unknown-linux-gnu-ld: arch/parisc/kernel/built-in.o(.text 
>>> +0xllx):
>>> cannot reach (null)
>>> *arch/parisc/kernel/built-in.o: In function `sys_vfork_wrapper':
>>> *(.text+0x4e1c): relocation truncated to fit: R_PARISC_PCREL17F  
>>> against symbol
>>> `sys_vfork' defined in .text.sys_vfork section in kernel/built-in.o
>>> *make: *** [vmlinux] Error 1
>>
>> Some form of a 17-bit branch has been used (e.g., b), to branch to
>> sys_fork.  Assume
>> you are building without modules, so you have a big kernel.
>
> I have modules, but I had seen an error before so I tried enabling 
> longcalls. Currently building without MLONGCALLS with new binutils to 
> see if it works then, i.e. the error below goes away.
Longcalls will not fix the above.  The option doesn't affect assembly code.

A "b" instruction is not a "call".  By that, I mean that the linker 
doesn't add long call stubs, etc.  It only
supports a 17-bit pc-relative offset.  The prelinking done by linux can 
result in objects that are too big
and out of range branches as above.
>
>> Problem seems to be here:
>>
>>         .macro  fork_like name
>> ENTRY(sys_\name\()_wrapper)
>>         LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
>>         ldo     TASK_REGS(%r1),%r1
>>         reg_save %r1
>>         mfctl   %cr27, %r28
>>         b       sys_\name
>>         STREG   %r28, PT_CR27(%r1)
>> ENDPROC(sys_\name\()_wrapper)
>>         .endm
>>
>> If %r2 can be clobbered, the "b" instruction could be changed to the
>> "BL" macro.
>> This would give 22-bit branch on PA 2.0.  For example,
>>
>> BL    sys_\name, %r2
Does this work?  I think %r2 should be available but I can't check at 
the moment.
>>
>>>
>>> This is after I enabled MLONGCALLS, witho
>>> ut longcalls it failed, too. I'm now
>>> trying with binutils 2.23.1 instead of 2.22.
>>
>> The above is not a binutils bug!
>
> Nope, but probably this:
>
> *hppa64-unknown-linux-gnu-ld: scripts/link-vmlinux.sh: line 52: 5398 
> Segmentation fault      ${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o ${2} -T 
> ${lds} ${KBUILD_VMLINUX_INIT} --start-group ${KBUILD_VMLINUX_MAIN} 
> --end-group ${1}
No, it's probably a kernel bug.  Is the crash consistent?  If it isn't, 
then it's an OS or kernel bug.

I've built thousands of Debian packages.  All the ld and as segmentation 
faults that I have seen go away
if I rerun the command.
>
>>> My C3600 (32 bit) doesn't even come that far, I get:
>>>
>>> make: hppa-linux-gnu-gcc: Command not found
>>> make: hppa-linux-gnu-gcc: Command not found
>>> /usr/src/linux-3.9.0/scripts/gcc-version.sh: line 25: 
>>> hppa-linux-gnu- gcc:
>>> command not found
>>> /usr/src/linux-3.9.0/scripts/gcc-version.sh: line 26: 
>>> hppa-linux-gnu- gcc:
>>> command not found
>>> Sorry, GCC v3.3 or above is required to build the kernel.
>>> make: *** [checkbin] Error 1
>>
>>
>> I don't think anyone changed this code from previous versions. I seem 
>> to have
>> hppa-linux-gnu-gcc on my system.  At some point, the alternatives  
>> might have
>> been called hppa-linux-*.
>
> It's called hppa2.0-* for me. The interesting thing is: cd to the 
> linux-3.7.1 source and "make something" works fine, so it's indeed 
> something in the kernel.
>
> Eike
>
> P.S.: did you intentionally removed the list from CC? Feel free to add 
> it back if it was by accident.
No, I hit the wrong button.  Added it back.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: Error compiling 3.9.0
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Am Dienstag 30 April 2013, 10:45:54 schrieb John David Anglin:
> On 4/30/2013 10:02 AM, Rolf Eike Beer wrote:
> > Am 30.04.2013 15:00, schrieb John David Anglin:
> >> On 30-Apr-13, at 5:37 AM, Rolf Eike Beer wrote:
> >>> Compiling for my C8000 (64 bit) failed:
> >>> 
> >>> *arch/parisc/kernel/built-in.o: In function `sys_fork_wrapper':
> >>> *(.text+0x4dc8): relocation truncated to fit: R_PARISC_PCREL17F
> >>> against symbol
> >>> `sys_fork' defined in .text.sys_fork section in kernel/built-in.o
> >>> *hppa64-unknown-linux-gnu-ld: arch/parisc/kernel/built-in.o(.text
> >>> +0xllx):
> >>> cannot reach (null)
> >>> *arch/parisc/kernel/built-in.o: In function `sys_vfork_wrapper':
> >>> *(.text+0x4e1c): relocation truncated to fit: R_PARISC_PCREL17F
> >>> against symbol
> >>> `sys_vfork' defined in .text.sys_vfork section in kernel/built-in.o
> >>> *make: *** [vmlinux] Error 1
> >> 
> >> Some form of a 17-bit branch has been used (e.g., b), to branch to
> >> sys_fork.  Assume
> >> you are building without modules, so you have a big kernel.
> > 
> > I have modules, but I had seen an error before so I tried enabling
> > longcalls. Currently building without MLONGCALLS with new binutils to
> > see if it works then, i.e. the error below goes away.
> 
> Longcalls will not fix the above.  The option doesn't affect assembly code.
> 
> A "b" instruction is not a "call".  By that, I mean that the linker
> doesn't add long call stubs, etc.  It only
> supports a 17-bit pc-relative offset.  The prelinking done by linux can
> result in objects that are too big
> and out of range branches as above.
> 
> >> Problem seems to be here:
> >>         .macro  fork_like name
> >> 
> >> ENTRY(sys_\name\()_wrapper)
> >> 
> >>         LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
> >>         ldo     TASK_REGS(%r1),%r1
> >>         reg_save %r1
> >>         mfctl   %cr27, %r28
> >>         b       sys_\name
> >>         STREG   %r28, PT_CR27(%r1)
> >> 
> >> ENDPROC(sys_\name\()_wrapper)
> >> 
> >>         .endm
> >> 
> >> If %r2 can be clobbered, the "b" instruction could be changed to the
> >> "BL" macro.
> >> This would give 22-bit branch on PA 2.0.  For example,
> >> 
> >> BL    sys_\name, %r2
> 
> Does this work?  I think %r2 should be available but I can't check at
> the moment.

Have not tried yet.

> >>> This is after I enabled MLONGCALLS, witho
> >>> ut longcalls it failed, too. I'm now
> >>> trying with binutils 2.23.1 instead of 2.22.
> >> 
> >> The above is not a binutils bug!
> > 
> > Nope, but probably this:
> > 
> > *hppa64-unknown-linux-gnu-ld: scripts/link-vmlinux.sh: line 52: 5398
> > Segmentation fault      ${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o ${2} -T
> > ${lds} ${KBUILD_VMLINUX_INIT} --start-group ${KBUILD_VMLINUX_MAIN}
> > --end-group ${1}
> 
> No, it's probably a kernel bug.  Is the crash consistent?  If it isn't,
> then it's an OS or kernel bug.

I have got the same crash again. This are the first 2 tries I ever made with 
binutils 2.23.1 for 64 bit binaries, so I have nothing to compare to.

Eike
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From - Thu Nov 08 21:09:11 2018
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On 30-Apr-13, at 12:40 PM, Rolf Eike Beer wrote:

>>> Nope, but probably this:
>>>
>>> *hppa64-unknown-linux-gnu-ld: scripts/link-vmlinux.sh: line 52: 5398
>>> Segmentation fault      ${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o  
>>> ${2} -T
>>> ${lds} ${KBUILD_VMLINUX_INIT} --start-group ${KBUILD_VMLINUX_MAIN}
>>> --end-group ${1}
>>
>> No, it's probably a kernel bug.  Is the crash consistent?  If it  
>> isn't,
>> then it's an OS or kernel bug.
>
> I have got the same crash again. This are the first 2 tries I ever  
> made with
> binutils 2.23.1 for 64 bit binaries, so I have nothing to compare to.

I have successfully built 3.9.0 with debian binutils 2.23.2-2, so I  
think the above
issue is specific to your kernel, config, etc.  So, full details are  
needed.  Particularly,
details on how to reproduce the fault are needed.

Dave
--
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Am 02.05.2013 03:34, schrieb John David Anglin:
> On 30-Apr-13, at 12:40 PM, Rolf Eike Beer wrote:
> 
>>>> Nope, but probably this:
>>>> 
>>>> *hppa64-unknown-linux-gnu-ld: scripts/link-vmlinux.sh: line 52: 
>>>> 5398
>>>> Segmentation fault      ${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o  
>>>> ${2} -T
>>>> ${lds} ${KBUILD_VMLINUX_INIT} --start-group ${KBUILD_VMLINUX_MAIN}
>>>> --end-group ${1}
>>> 
>>> No, it's probably a kernel bug.  Is the crash consistent?  If it  
>>> isn't,
>>> then it's an OS or kernel bug.
>> 
>> I have got the same crash again. This are the first 2 tries I ever  
>> made with
>> binutils 2.23.1 for 64 bit binaries, so I have nothing to compare to.
> 
> I have successfully built 3.9.0 with debian binutils 2.23.2-2, so I
> think the above
> issue is specific to your kernel, config, etc.  So, full details are
> needed.  Particularly,
> details on how to reproduce the fault are needed.

It's a plain 3.9.0, the .config was attached to the first mail. I 
always get the same problem at the same place:

   KSYM    .tmp_kallsyms1.o
hppa64-unknown-linux-gnu-ld: scripts/link-vmlinux.sh: line 52: 11674 
Segmentation fault      ${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o ${2} -T 
${lds} ${KBUILD_VMLINUX_INIT} --start-group ${KBUILD_VMLINUX_MAIN} 
--end-group ${1}
make: *** [vmlinux] Error 139

Greetings,

Eike
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From - Thu Nov 08 21:09:11 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix partly 16/64k PAGE_SIZE boot
Date: Thu, 2 May 2013 22:41:45 +0200
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To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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This patch fixes partly PAGE_SIZEs of 16K or 64K by adjusting the
assembler PTE lookup code and the assembler TEMPALIAS code.  Furthermore
some data alignments for PAGE_SIZE have been limited to 4K (or less) to
not waste too much memory with greater page sizes. As a side note, the
palo loader can (currently) only handle up to 10 ELF segments which is
fixed with tighter aligning as well.

My testings indicated that the ldci command in the sba iommu coding
needed adjustment by the PAGE_SHIFT value and that the I/O PDIR Page
size was only set to 4K for my machine (C3000).

All this fixes partly the boot, but there are still quite some caching
problems left.  Examples are e.g. the symbios logic driver which is
failing:

sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 69                                                                                                                          
sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking                                                                                                              
CACHE TEST FAILED: DMA error (dstat=0x81).sym0: CACHE INCORRECTLY CONFIGURED. 

and the tulip network driver which doesn't seem to work correctly
either:

Sending BOOTP requests .net eth0: Setting full-duplex based on MII#1
link partner capability of 05e1                                                                    
..... timed out!   

Beside those kernel fixes glibc will need fixes too to be able to handle
>4K page sizes.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index f33201b..18f7b28 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -400,7 +400,11 @@
 #if PT_NLEVELS == 3
 	extru		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
 #else
+# if PAGE_SIZE > 4096
+	extru		\va,31-ASM_PGDIR_SHIFT,32-ASM_PGDIR_SHIFT,\index
+# else
 	extru		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
+# endif
 #endif
 	dep             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	copy		%r0,\pte
@@ -615,7 +619,7 @@
 
 	.text
 
-	.align	PAGE_SIZE
+	.align 4096
 
 ENTRY(fault_vector_20)
 	/* First vector is invalid (0) */
diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index 5595a2f..e158b6f 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -55,13 +55,13 @@
 	 * IODC requires 7K byte stack.  That leaves 1K byte for os_hpmc.
 	 */
 
-	.align	PAGE_SIZE
+	.align 4096
 hpmc_stack:
 	.block 16384
 
 #define HPMC_IODC_BUF_SIZE 0x8000
 
-	.align	PAGE_SIZE
+	.align 4096
 hpmc_iodc_buf:
 	.block HPMC_IODC_BUF_SIZE
 
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 312b484..5e1de60 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -563,6 +563,15 @@ ENDPROC(copy_page_asm)
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
+        /* Drop prot bits and convert to page addr for iitlbt and idtlbt */
+        #define PAGE_ADD_SHIFT  (PAGE_SHIFT-12)
+        .macro          convert_phys_for_tlb_insert20  phys
+        extrd,u         \phys, 56-PAGE_ADD_SHIFT, 32-PAGE_ADD_SHIFT, \phys
+#if _PAGE_SIZE_ENCODING_DEFAULT
+        depdi           _PAGE_SIZE_ENCODING_DEFAULT, 63, (63-58), \phys
+#endif
+	.endm
+
 	/*
 	 * We can't do this since copy_user_page is used to bring in
 	 * file data that might have instructions. Since the data would
@@ -589,15 +598,14 @@ ENTRY(copy_user_page_asm)
 	sub		%r25, %r1, %r23
 
 	ldil		L%(TMPALIAS_MAP_START), %r28
-	/* FIXME for different page sizes != 4k */
 #ifdef CONFIG_64BIT
 #if (TMPALIAS_MAP_START >= 0x80000000)
 	depdi		0, 31,32, %r28		/* clear any sign extension */
 #endif
-	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
-	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
+	convert_phys_for_tlb_insert20 %r26	/* convert phys addr to tlb insert format */
+	convert_phys_for_tlb_insert20 %r23	/* convert phys addr to tlb insert format */
 	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
-	depdi		0, 63,12, %r28		/* Clear any offset bits */
+	depdi		0, 63,PAGE_SHIFT, %r28  /* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
 #else
@@ -747,11 +755,10 @@ ENTRY(clear_user_page_asm)
 #ifdef CONFIG_64BIT
 #if (TMPALIAS_MAP_START >= 0x80000000)
 	depdi		0, 31,32, %r28		/* clear any sign extension */
-	/* FIXME: page size dependend */
 #endif
-	extrd,u		%r26, 56,32, %r26	/* convert phys addr to tlb insert format */
+	convert_phys_for_tlb_insert20 %r26	/* convert phys addr to tlb insert format */
 	depd		%r25, 63,22, %r28	/* Form aliased virtual address 'to' */
-	depdi		0, 63,12, %r28		/* Clear any offset bits */
+	depdi		0, 63,PAGE_SHIFT, %r28	/* Clear any offset bits */
 #else
 	extrw,u		%r26, 24,25, %r26	/* convert phys addr to tlb insert format */
 	depw		%r25, 31,22, %r28	/* Form aliased virtual address 'to' */
@@ -832,11 +839,10 @@ ENTRY(flush_dcache_page_asm)
 #ifdef CONFIG_64BIT
 #if (TMPALIAS_MAP_START >= 0x80000000)
 	depdi		0, 31,32, %r28		/* clear any sign extension */
-	/* FIXME: page size dependend */
 #endif
-	extrd,u		%r26, 56,32, %r26	/* convert phys addr to tlb insert format */
+	convert_phys_for_tlb_insert20 %r26	/* convert phys addr to tlb insert format */
 	depd		%r25, 63,22, %r28	/* Form aliased virtual address 'to' */
-	depdi		0, 63,12, %r28		/* Clear any offset bits */
+	depdi		0, 63,PAGE_SHIFT, %r28	/* Clear any offset bits */
 #else
 	extrw,u		%r26, 24,25, %r26	/* convert phys addr to tlb insert format */
 	depw		%r25, 31,22, %r28	/* Form aliased virtual address 'to' */
@@ -909,11 +915,10 @@ ENTRY(flush_icache_page_asm)
 #ifdef CONFIG_64BIT
 #if (TMPALIAS_MAP_START >= 0x80000000)
 	depdi		0, 31,32, %r28		/* clear any sign extension */
-	/* FIXME: page size dependend */
 #endif
-	extrd,u		%r26, 56,32, %r26	/* convert phys addr to tlb insert format */
+	convert_phys_for_tlb_insert20 %r26	/* convert phys addr to tlb insert format */
 	depd		%r25, 63,22, %r28	/* Form aliased virtual address 'to' */
-	depdi		0, 63,12, %r28		/* Clear any offset bits */
+	depdi		0, 63,PAGE_SHIFT, %r28  /* Clear any offset bits */
 #else
 	extrw,u		%r26, 24,25, %r26	/* convert phys addr to tlb insert format */
 	depw		%r25, 31,22, %r28	/* Form aliased virtual address 'to' */
@@ -959,7 +964,7 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r1(%sr4,%r28)
 	fic,m		%r1(%sr4,%r28)
 	fic,m		%r1(%sr4,%r28)
-	cmpb,COND(<<)		%r28, %r25,1b
+	cmpb,COND(<<)	%r28, %r25,1b
 	fic,m		%r1(%sr4,%r28)
 
 	sync
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index a3328c2..76b63e7 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -129,6 +129,8 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_INFO "The 32-bit Kernel has started...\n");
 #endif
 
+	printk(KERN_INFO "Default page size is %dKB.\n", (int)(PAGE_SIZE / 1024));
+
 	pdc_console_init();
 
 #ifdef CONFIG_64BIT
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 5e05524..b27f4aa 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -15,6 +15,7 @@
 #include <asm/thread_info.h>
 #include <asm/assembly.h>
 #include <asm/processor.h>
+#include <asm/cache.h>
 
 #include <linux/linkage.h>
 
@@ -643,7 +644,7 @@ ENTRY(end_linux_gateway_page)
 
 	.section .rodata,"a"
 
-	.align PAGE_SIZE
+	.align 8
 	/* Light-weight-syscall table */
 	/* Start of lws table. */
 ENTRY(lws_table)
@@ -652,13 +653,13 @@ ENTRY(lws_table)
 END(lws_table)
 	/* End of lws table */
 
-	.align PAGE_SIZE
+	.align 8
 ENTRY(sys_call_table)
 #include "syscall_table.S"
 END(sys_call_table)
 
 #ifdef CONFIG_64BIT
-	.align PAGE_SIZE
+	.align 8
 ENTRY(sys_call_table64)
 #define SYSCALL_TABLE_64BIT
 #include "syscall_table.S"
@@ -674,7 +675,7 @@ END(sys_call_table64)
 		with ldcw.
 	*/
 	.section .data
-	.align	PAGE_SIZE
+	.align	L1_CACHE_BYTES
 ENTRY(lws_lock_start)
 	/* lws locks */
 	.rept 16
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 42cfcd9..1ff1b67 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -575,7 +575,7 @@ sba_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
 
 	mtsp(sid,1);
 	asm("lci 0(%%sr1, %1), %0" : "=r" (ci) : "r" (vba));
-	pa |= (ci >> 12) & 0xff;  /* move CI (8 bits) into lowest byte */
+	pa |= (ci >> PAGE_SHIFT) & 0xff;  /* move CI (8 bits) into lowest byte */
 
 	pa |= SBA_PDIR_VALID_BIT;	/* set "valid" bit */
 	*pdir_ptr = cpu_to_le64(pa);	/* swap and store into I/O Pdir */
@@ -1376,7 +1376,7 @@ static void
 sba_ioc_init(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
 {
 	u32 iova_space_size, iova_space_mask;
-	unsigned int pdir_size, iov_order;
+	unsigned int pdir_size, iov_order, tcnfg;
 
 	/*
 	** Determine IOVA Space size from memory size.
@@ -1468,8 +1468,19 @@ sba_ioc_init(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
 	WRITE_REG(ioc->ibase | 1, ioc->ioc_hpa+IOC_IBASE);
 	WRITE_REG(ioc->imask, ioc->ioc_hpa+IOC_IMASK);
 
-	/* Set I/O PDIR Page size to 4K */
-	WRITE_REG(0, ioc->ioc_hpa+IOC_TCNFG);
+	/* Set I/O PDIR Page size to system page size */
+	switch (PAGE_SHIFT) {
+		case 12: tcnfg = 0; break;	/*  4K */
+		case 13: tcnfg = 1; break;	/*  8K */
+		case 14: tcnfg = 2; break;	/* 16K */
+		case 16: tcnfg = 3; break;	/* 64K */
+		default:
+			panic(__FILE__ "Unsupported system page size %d",
+				1 << PAGE_SHIFT);
+			break;
+	}
+	/* Set I/O PDIR Page size to PAGE_SIZE (4k/16k/...) */
+	WRITE_REG(tcnfg, ioc->ioc_hpa+IOC_TCNFG);
 
 	/*
 	** Clear I/O TLB of any possible entries.
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: document the parisc gateway page
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Include some documentation about how the parisc gateway page technically
works and how it is used from userspace.

James Bottomley is the original author of this description and it was
copied here out of an email thread from Apr 12 2013 titled:
man2 : syscall.2 : document syscall calling conventions

CC: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 5e05524..546770a 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -1,12 +1,35 @@
 /* 
  * Linux/PA-RISC Project (http://www.parisc-linux.org/)
  * 
- * System call entry code Copyright (c) Matthew Wilcox 1999 <willy@bofh.ai>
+ * System call entry code / Linux gateway page
+ * Copyright (c) Matthew Wilcox 1999 <willy@bofh.ai>
  * Licensed under the GNU GPL.
  * thanks to Philipp Rumpf, Mike Shaver and various others
  * sorry about the wall, puffin..
  */
 
+/*
+How does the Linux gateway page on PA-RISC work?
+------------------------------------------------
+The Linux gateway page on PA-RISC is "special".
+It actually has PAGE_GATEWAY bits set (this is linux terminology; in parisc
+terminology it's Execute, promote to PL0) in the page map.  So anything
+executing on this page executes with kernel level privilege (there's more to it
+than that: to have this happen, you also have to use a branch with a ,gate
+completer to activate the privilege promotion).  The upshot is that everything
+that runs on the gateway page runs at kernel privilege but with the current
+user process address space (although you have access to kernel space via %sr2).
+For the 0x100 syscall entry, we redo the space registers to point to the kernel
+address space (preserving the user address space in %sr3), move to wide mode if
+required, save the user registers and branch into the kernel syscall entry
+point.  For all the other functions, we execute at kernel privilege but don't
+flip address spaces. The basic upshot of this is that these code snippets are
+executed atomically (because the kernel can't be pre-empted) and they may
+perform architecturally forbidden (to PL3) operations (like setting control
+registers).
+*/
+
+
 #include <asm/asm-offsets.h>
 #include <asm/unistd.h>
 #include <asm/errno.h>
--
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 5/2/2013 8:41 AM, Rolf Eike Beer wrote:
> Am 02.05.2013 03:34, schrieb John David Anglin:
>> On 30-Apr-13, at 12:40 PM, Rolf Eike Beer wrote:
>>
>>>>> Nope, but probably this:
>>>>>
>>>>> *hppa64-unknown-linux-gnu-ld: scripts/link-vmlinux.sh: line 52: 5398
>>>>> Segmentation fault      ${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o  
>>>>> ${2} -T
>>>>> ${lds} ${KBUILD_VMLINUX_INIT} --start-group ${KBUILD_VMLINUX_MAIN}
>>>>> --end-group ${1}
>>>>
>>>> No, it's probably a kernel bug.  Is the crash consistent? If it  
>>>> isn't,
>>>> then it's an OS or kernel bug.
>>>
>>> I have got the same crash again. This are the first 2 tries I ever  
>>> made with
>>> binutils 2.23.1 for 64 bit binaries, so I have nothing to compare to.
>>
>> I have successfully built 3.9.0 with debian binutils 2.23.2-2, so I
>> think the above
>> issue is specific to your kernel, config, etc.  So, full details are
>> needed.  Particularly,
>> details on how to reproduce the fault are needed.
>
> It's a plain 3.9.0, the .config was attached to the first mail. I 
> always get the same problem at the same place:
>
>   KSYM    .tmp_kallsyms1.o
> hppa64-unknown-linux-gnu-ld: scripts/link-vmlinux.sh: line 52: 11674 
> Segmentation fault      ${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o ${2} -T 
> ${lds} ${KBUILD_VMLINUX_INIT} --start-group ${KBUILD_VMLINUX_MAIN} 
> --end-group ${1}
> make: *** [vmlinux] Error 139
Although I can confirm the branch distance issue with your .config, I 
don't see the above.  Thus, some
debugging on your part would be needed to find out what's going on.

There should be info about the segmentation fault in your system log.  
Gdb can tell you which application
faulted but without a debug version, it will be hard to tell what's 
happening.  Failing command would need
debugging.

Dave

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From: Mike Frysinger <vapier@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix NATIVE set up in build
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The ifeq operator does not accept globs, so this little bit of code will
never match (unless uname literally prints out "parsic*").  Rewrite to
use a pattern matching operator so that NATIVE is set to 1 on parisc.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 arch/parisc/Makefile | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 113e282..2f967cc 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -24,9 +24,7 @@ CHECKFLAGS	+= -D__hppa__=1
 LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 
 MACHINE		:= $(shell uname -m)
-ifeq ($(MACHINE),parisc*)
-NATIVE		:= 1
-endif
+NATIVE		:= $(if $(filter parisc%,$(MACHINE)),1,0)
 
 ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
-- 
1.8.2.1

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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: [PATCH] parisc: fix NATIVE set up in build
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Am 04.05.2013 18:50, schrieb Mike Frysinger:
> The ifeq operator does not accept globs, so this little bit of code 
> will
> never match (unless uname literally prints out "parsic*").  Rewrite to
                                                   ^^^^^^

That would never match ;)

Eike
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Subject: [PATCH] parisc: use long branch in fork_like macro
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The "b" branch instruction used in the fork_like macro only can handle  
17-bit pc-relative offsets.
This fails with an out of range offset with some .config files.   
Rewrite to use the "be" instruction which
can branch to any address in a space.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---



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diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index f33201b..3a6bb7b 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1694,7 +1695,8 @@ ENTRY(sys_\name\()_wrapper)
 	ldo	TASK_REGS(%r1),%r1
 	reg_save %r1
 	mfctl	%cr27, %r28
-	b	sys_\name
+	ldil	L%sys_\name, %r31
+	be	R%sys_\name(%sr4,%r31)
 	STREG	%r28, PT_CR27(%r1)
 ENDPROC(sys_\name\()_wrapper)
 	.endm

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] kernel/modsign_certificate.S: fix build on parisc
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Module signing functionality breaks the kernel build on parisc with the
following error: 

kernel/built-in.o: In function `load_module_signing_keys':
kernel/modsign_pubkey.c:67: undefined reference to `modsign_certificate_list_end'
kernel/modsign_pubkey.c:66: undefined reference to `modsign_certificate_list'
make[3]: *** [vmlinux] Error 1

The reason why the build fails is because on parisc assembly syntax is
different than on other architectures. Most importantly, a semicolon
marks the start of a comment, while exclamation marks separates
statements.

Currently the GLOBAL(name) macro uses a semicolon to separate the .globl
and the ASM_SYMBOL() statements. On PA-RISC the semicolon will now just
strip the ASM_SYMBOL() statements since it thinks it is a comment and as
such the modsign_certificate_list/modsign_certificate_list_end symbols
will not get defined and will not be in the vmlinux binary.

Fix this problem by adding an own implementation for GLOBAL() on the
PARISC architecture.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/kernel/modsign_certificate.S b/kernel/modsign_certificate.S
index 246b4c6..9b9c2ab 100644
--- a/kernel/modsign_certificate.S
+++ b/kernel/modsign_certificate.S
@@ -7,9 +7,17 @@
 #define ASM_SYMBOL(sym) PASTE(SYMBOL_PREFIX, sym)
 #endif
 
-#define GLOBAL(name)	\
-	.globl ASM_SYMBOL(name);	\
+#if defined(__hppa__)
+ /* HPPA/PA-RISC assembly is special: comments start with semicolon
+  * and exclamation marks separates statements. */
+ #define GLOBAL(name)	\
+	.globl ASM_SYMBOL(name) ! \
 	ASM_SYMBOL(name):
+#else
+ #define GLOBAL(name)	\
+	.globl ASM_SYMBOL(name) ; \
+	ASM_SYMBOL(name):
+#endif
 
 	.section ".init.data","aw"
 
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] MPILIB: disable usage of floating point registers on parisc
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The umul_ppmm() macro for parisc uses the xmpyu assembler statement
which does calculation via a floating point register.

But usage of floating point registers inside the Linux kernel are not
allowed and gcc will stop compilation due to the -mdisable-fpregs
compiler option.

Fix this by disabling the umul_ppmm() and udiv_qrnnd() macros. The
mpilib will then use the generic built-in implementations instead.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/lib/mpi/longlong.h b/lib/mpi/longlong.h
index 095ab15..d411355 100644
--- a/lib/mpi/longlong.h
+++ b/lib/mpi/longlong.h
@@ -318,7 +318,8 @@ extern UDItype __udiv_qrnnd();
 	     "rM" ((USItype)(bh)), \
 	     "rM" ((USItype)(al)), \
 	     "rM" ((USItype)(bl)))
-#if defined(_PA_RISC1_1)
+#if 0 && defined(_PA_RISC1_1)
+/* xmpyu uses floating point register which is not allowed in Linux kernel. */
 #define umul_ppmm(wh, wl, u, v) \
 do { \
 	union {UDItype __ll; \
@@ -337,7 +338,7 @@ do { \
 #define UMUL_TIME 40
 #define UDIV_TIME 80
 #endif
-#ifndef LONGLONG_STANDALONE
+#if 0 /* #ifndef LONGLONG_STANDALONE */
 #define udiv_qrnnd(q, r, n1, n0, d) \
 do { USItype __r; \
 	(q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: implement atomic64_dec_if_positive()
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 0339181..967d727 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -12,6 +12,7 @@ config PARISC
 	select BUG
 	select HAVE_PERF_EVENTS
 	select GENERIC_ATOMIC64 if !64BIT
+	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select HAVE_GENERIC_HARDIRQS
 	select BROKEN_RODATA
 	select GENERIC_IRQ_PROBE
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index f38e198..472886c 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -229,6 +229,29 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
 
+/*
+ * atomic64_dec_if_positive - decrement by 1 if old value positive
+ * @v: pointer of type atomic_t
+ *
+ * The function returns the old value of *v minus 1, even if
+ * the atomic variable, v, was not decremented.
+ */
+static inline long atomic64_dec_if_positive(atomic64_t *v)
+{
+	long c, old, dec;
+	c = atomic64_read(v);
+	for (;;) {
+		dec = c - 1;
+		if (unlikely(dec < 0))
+			break;
+		old = atomic64_cmpxchg((v), c, dec);
+		if (likely(old == c))
+			break;
+		c = old;
+	}
+	return dec;
+}
+
 #endif /* !CONFIG_64BIT */
 
 
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: more irq statistics in /proc/interrupts
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Add framework and initial values for more fine grained statistics in
/proc/interrupts.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index 0d68184..a9c0fb1 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -1,11 +1,45 @@
 /* hardirq.h: PA-RISC hard IRQ support.
  *
  * Copyright (C) 2001 Matthew Wilcox <matthew@wil.cx>
+ * Copyright (C) 2013 Helge Deller <deller@gmx.de>
  */
 
 #ifndef _PARISC_HARDIRQ_H
 #define _PARISC_HARDIRQ_H
 
-#include <asm-generic/hardirq.h>
+#include <linux/cache.h>
+#include <linux/threads.h>
+#include <linux/irq.h>
+
+typedef struct {
+	unsigned int __softirq_pending;
+#ifdef CONFIG_DEBUG_STACKOVERFLOW
+	unsigned int kernel_stack_usage;
+#endif
+#ifdef CONFIG_SMP
+	unsigned int irq_resched_count;
+	unsigned int irq_call_count;
+	/*
+	 * irq_tlb_count is double-counted in irq_call_count, so it must be
+	 * subtracted from irq_call_count when displaying irq_call_count
+	 */
+	unsigned int irq_tlb_count;
+#endif
+} ____cacheline_aligned irq_cpustat_t;
+
+DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
+
+#define __ARCH_IRQ_STAT
+#define __IRQ_STAT(cpu, member) (irq_stat[cpu].member)
+#define inc_irq_stat(member)	this_cpu_inc(irq_stat.member)
+#define local_softirq_pending()	this_cpu_read(irq_stat.__softirq_pending)
+
+#define __ARCH_SET_SOFTIRQ_PENDING
+
+#define set_softirq_pending(x)	\
+		this_cpu_write(irq_stat.__softirq_pending, (x))
+#define or_softirq_pending(x)	this_cpu_or(irq_stat.__softirq_pending, (x))
+
+#define ack_bad_irq(irq) WARN(1, "unexpected IRQ trap at vector %02x\n", irq)
 
 #endif /* _PARISC_HARDIRQ_H */
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 09b54a5..8469664 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -97,7 +97,6 @@ struct cpuinfo_parisc {
 	unsigned long txn_addr;     /* MMIO addr of EIR or id_eid */
 #ifdef CONFIG_SMP
 	unsigned long pending_ipi;  /* bitmap of type ipi_message_type */
-	unsigned long ipi_count;    /* number ipi Interrupts */
 #endif
 	unsigned long bh_count;     /* number of times bh was invoked */
 	unsigned long prof_counter; /* per CPU profiling support */
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index b81a514f..14015fc 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -152,6 +152,40 @@ static struct irq_chip cpu_interrupt_type = {
 	.irq_retrigger	= NULL,
 };
 
+DEFINE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
+#define irq_stats(x)		(&per_cpu(irq_stat, x))
+
+/*
+ * /proc/interrupts printing for arch specific interrupts
+ */
+int arch_show_interrupts(struct seq_file *p, int prec)
+{
+	int j;
+
+#ifdef CONFIG_DEBUG_STACKOVERFLOW
+	seq_printf(p, "%*s: ", prec, "STK");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10u ", irq_stats(j)->kernel_stack_usage);
+	seq_printf(p, "  Kernel stack usage\n");
+#endif
+#ifdef CONFIG_SMP
+	seq_printf(p, "%*s: ", prec, "RES");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10u ", irq_stats(j)->irq_resched_count);
+	seq_printf(p, "  Rescheduling interrupts\n");
+	seq_printf(p, "%*s: ", prec, "CAL");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10u ", irq_stats(j)->irq_call_count -
+					irq_stats(j)->irq_tlb_count);
+	seq_printf(p, "  Function call interrupts\n");
+	seq_printf(p, "%*s: ", prec, "TLB");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10u ", irq_stats(j)->irq_tlb_count);
+	seq_printf(p, "  TLB shootdowns\n");
+#endif
+	return 0;
+}
+
 int show_interrupts(struct seq_file *p, void *v)
 {
 	int i = *(loff_t *) v, j;
@@ -219,6 +253,9 @@ int show_interrupts(struct seq_file *p, void *v)
 		raw_spin_unlock_irqrestore(&desc->lock, flags);
 	}
 
+	if (i == NR_IRQS)
+		arch_show_interrupts(p, 3);
+
 	return 0;
 }
 
@@ -340,13 +377,22 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 	/* Our stack starts directly behind the thread_info struct. */
 	unsigned long stack_start = (unsigned long) current_thread_info();
 	unsigned long sp = regs->gr[30];
+	unsigned long stack_usage;
+	unsigned int *last_usage;
 
 	/* if sr7 != 0, we interrupted a userspace process which we do not want
 	 * to check for stack overflow. We will only check the kernel stack. */
 	if (regs->sr[7])
 		return;
 
-	if (likely((sp - stack_start) < (THREAD_SIZE - STACK_MARGIN)))
+	/* calculate kernel stack usage */
+	stack_usage = sp - stack_start;
+	last_usage = &per_cpu(irq_stat.kernel_stack_usage, smp_processor_id());
+
+	if (unlikely(stack_usage > *last_usage))
+		*last_usage = stack_usage;
+
+	if (likely(stack_usage < (THREAD_SIZE - STACK_MARGIN)))
 		return;
 
 	pr_emerg("stackcheck: %s will most likely overflow kernel stack "
@@ -450,3 +496,4 @@ void __init init_IRQ(void)
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
 }
+
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 6266730..e907744 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -127,7 +127,7 @@ ipi_interrupt(int irq, void *dev_id)
 	unsigned long flags;
 
 	/* Count this now; we may make a call that never returns. */
-	p->ipi_count++;
+	inc_irq_stat(irq_call_count);
 
 	mb();	/* Order interrupt and bit testing. */
 
@@ -155,6 +155,7 @@ ipi_interrupt(int irq, void *dev_id)
 				
 			case IPI_RESCHEDULE:
 				smp_debug(100, KERN_DEBUG "CPU%d IPI_RESCHEDULE\n", this_cpu);
+				inc_irq_stat(irq_resched_count);
 				scheduler_ipi();
 				break;
 
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 3ac462d..9fbcc22 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -1077,6 +1077,7 @@ void flush_tlb_all(void)
 {
 	int do_recycle;
 
+	inc_irq_stat(irq_tlb_count);
 	do_recycle = 0;
 	spin_lock(&sid_lock);
 	if (dirty_space_ids > RECYCLE_THRESHOLD) {
@@ -1097,6 +1098,7 @@ void flush_tlb_all(void)
 #else
 void flush_tlb_all(void)
 {
+	inc_irq_stat(irq_tlb_count);
 	spin_lock(&sid_lock);
 	flush_tlb_all_local(NULL);
 	recycle_sids();
--
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: only re-enable interrupts if we need to schedule or deliver signals when returning to userspace
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Helge and I have found that we have a kernel stack overflow problem  
which causes a variety of random failures.
Currently, we re-enable interrupts when returning from an external  
interrupt incase we need to schedule or delivery
signals.  As a result, a potentially unlimited number of interrupts  
can occur while we are running on the kernel
stack.  It is very limited in space (currently, 16k).  This change  
defers enabling interrupts until we have
actually decided to schedule or delivery signals.  This only occurs  
when we about to return to userspace.  This
limits the number of interrupts on the kernel stack to one.  In other  
cases, interrupts remain disabled until the
final return from interrupt (rfi).

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---



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diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index f33201b..bd7bec3 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -825,11 +826,6 @@ ENTRY(syscall_exit_rfi)
 	STREG   %r19,PT_SR7(%r16)
 
 intr_return:
-	/* NOTE: Need to enable interrupts incase we schedule. */
-	ssm     PSW_SM_I, %r0
-
-intr_check_resched:
-
 	/* check for reschedule */
 	mfctl   %cr30,%r1
 	LDREG   TI_FLAGS(%r1),%r19	/* sched.h: TIF_NEED_RESCHED */
@@ -856,6 +852,11 @@ intr_check_sig:
 	LDREG	PT_IASQ1(%r16), %r20
 	cmpib,COND(=),n 0,%r20,intr_restore /* backward */
 
+	/* NOTE: We need to enable interrupts if we have to deliver
+	 * signals. We used to do this earlier but it caused kernel
+	 * stack overflows. */
+	ssm     PSW_SM_I, %r0
+
 	copy	%r0, %r25			/* long in_syscall = 0 */
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
@@ -907,6 +908,10 @@ intr_do_resched:
 	cmpib,COND(=)	0, %r20, intr_do_preempt
 	nop
 
+	/* NOTE: We need to enable interrupts if we schedule.  We used
+	 * to do this earlier but it caused kernel stack overflows. */
+	ssm     PSW_SM_I, %r0
+
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif

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--
John David Anglin	dave.anglin@bell.net


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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] parisc: Use BL macro instead of b instruction to branch to do_cpu_irq_mask
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The b branch instruction only supports a 17-bit pc-relative offset.   
The BL macro provides for a 22-bit
call offset on PA 2.0 targets.  This reduces the chance that  
do_cpu_irq_mask will not be reachable.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---


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diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index f33201b..bd7bec3 100644
@@ -972,14 +977,13 @@ intr_extint:
 	copy	%r29, %r26	/* arg0 is pt_regs */
 	copy	%r29, %r16	/* save pt_regs */
 
-	ldil	L%intr_return, %r2

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: add kernel stack overflow check
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Add the CONFIG_DEBUG_STACKOVERFLOW config option to enable checks to
detect kernel stack overflows.

Stack overflows can not be detected reliable since we do not want to
introduce too much overhead.

Instead, during irq processing in do_cpu_irq_mask() we check kernel
stack usage of the interrupted kernel process. Kernel threads can be
easily detected by checking the value of space register 7 (sr7) which
is zero when running inside the kernel.

Since THREAD_SIZE is 16k and PAGE_SIZE is 4k, reduce the alignment of
the init thread to the lower value (PAGE_SIZE) in the kernel
vmlinux.ld.S linker script.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index bc989e5..fa6c322 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -13,3 +13,15 @@ config DEBUG_RODATA
          If in doubt, say "N".
 
 endmenu
+
+config DEBUG_STACKOVERFLOW
+	bool "Check for stack overflows"
+	default y
+	depends on DEBUG_KERNEL
+	---help---
+	  Say Y here if you want to check the overflows of kernel, IRQ
+	  and exception stacks. This option will cause messages of the
+	  stacks in detail when free stack space drops below a certain
+	  limit.
+	  If in doubt, say "N".
+
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 6182832..540c88f 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -40,7 +40,7 @@ struct thread_info {
 
 /* thread information allocation */
 
-#define THREAD_SIZE_ORDER            2
+#define THREAD_SIZE_ORDER	2 /* PA-RISC requires at least 16k stack */
 /* Be sure to hunt all references to this down when you change the size of
  * the kernel stack */
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_SIZE_ORDER)
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 8094d3e..61e51ac 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -330,6 +330,34 @@ static inline int eirr_to_irq(unsigned long eirr)
 	return (BITS_PER_LONG - bit) + TIMER_IRQ;
 }
 
+int sysctl_panic_on_stackoverflow = 1;
+
+static inline void stack_overflow_check(struct pt_regs *regs)
+{
+#ifdef CONFIG_DEBUG_STACKOVERFLOW
+	#define STACK_MARGIN	(256*6)
+
+	/* Our stack starts directly behind the thread_info struct. */
+	unsigned long stack_start = (unsigned long) current_thread_info();
+	unsigned long sp = regs->gr[30];
+
+	/* if sr7 != 0, we interrupted a userspace process which we do not want
+	 * to check for stack overflow. We will only check the kernel stack. */
+	if (regs->sr[7])
+		return;
+
+	if (likely((sp - stack_start) < (THREAD_SIZE - STACK_MARGIN)))
+		return;
+
+	pr_emerg("stackcheck: %s will most likely overflow kernel stack "
+		 "(sp:%lx, stk bottom-top:%lx-%lx)\n",
+		current->comm, sp, stack_start, stack_start + THREAD_SIZE);
+
+	if (sysctl_panic_on_stackoverflow)
+		panic("low stack detected by irq handler - check messages\n");
+#endif
+}
+
 /* ONLY called from entry.S:intr_extint() */
 void do_cpu_irq_mask(struct pt_regs *regs)
 {
@@ -364,6 +392,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 		goto set_out;
 	}
 #endif
+	stack_overflow_check(regs);
 	generic_handle_irq(irq);
 
  out:
@@ -420,6 +449,4 @@ void __init init_IRQ(void)
 	cpu_eiem = EIEM_MASK(TIMER_IRQ);
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
-
 }

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: implement irq stacks
Date: Tue, 7 May 2013 22:25:42 +0200
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Default kernel stack size on parisc is 16k.  During tests we found that the
kernel stack can easily grow beyond 13k, which leaves 3k left for irq
processing.

This patch adds the possibility to activate an additional stack of 16k per CPU
which is being used during irq processing.  This implementation does not yet
uses this irq stack for the irq bh handler.

The assembler code for call_on_stack was heavily cleaned up by John
David Anglin.

CC: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index fe4afb0..cad060f 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -243,6 +243,14 @@ config SMP
 
 	  If you don't know what to do here, say N.
 
+config IRQSTACKS
+	bool "Use separate kernel stacks when processing interrupts"
+	default n
+	help
+	  If you say Y here the kernel will use separate kernel stacks
+	  for handling hard and soft interrupts.  This can help avoid
+	  overflowing the process kernel stacks.
+
 config HOTPLUG_CPU
 	bool
 	default y if SMP
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 09b54a5..242f06a 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -20,8 +20,6 @@
 
 #endif /* __ASSEMBLY__ */
 
-#define KERNEL_STACK_SIZE 	(4*PAGE_SIZE)
-
 /*
  * Default implementation of macro that returns current
  * instruction pointer ("program counter").
@@ -61,6 +59,23 @@
 #ifndef __ASSEMBLY__
 
 /*
+ * IRQ STACK - used for irq handler
+ */
+#ifdef __KERNEL__
+
+#define IRQ_STACK_SIZE      (4096 << 2) /* 16k irq stack size */
+
+union irq_stack_union {
+	unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
+};
+
+DECLARE_PER_CPU(union irq_stack_union, irq_stack_union);
+
+void call_on_stack(unsigned long p1, void *func, unsigned long new_stack);
+
+#endif /* __KERNEL__ */
+
+/*
  * Data detected about CPUs at boot time which is the same for all CPU's.
  * HP boxes are SMP - ie identical processors.
  *
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 3f3326d..4bb96ad 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -2010,6 +2010,47 @@ ftrace_stub:
 ENDPROC(return_to_handler)
 #endif	/* CONFIG_FUNCTION_TRACER */
 
+#ifdef CONFIG_IRQSTACKS
+/* void call_on_stack(unsigned long param1, void *func,
+		      unsigned long new_stack) */
+ENTRY(call_on_stack)
+	copy	%sp, %r1
+
+	/* Regarding the HPPA calling conventions for function pointers,
+	   we assume the PIC register is not changed across call.  For
+	   CONFIG_64BIT, the argument pointer is left to point at the
+	   argument region allocated for the call to call_on_stack. */
+# ifdef CONFIG_64BIT
+	/* Switch to new stack.  We allocate two 128 byte frames.  */
+	ldo	256(%arg2), %sp
+	/* Save previous stack pointer and return pointer in frame marker */
+	STREG	%rp, -144(%sp)
+	/* Calls always use function descriptor */
+	LDREG	16(%arg1), %arg1
+	bve,l	(%arg1), %rp
+	STREG	%r1, -136(%sp)
+	LDREG	-144(%sp), %rp
+	bve	(%rp)
+	LDREG	-136(%sp), %sp
+# else
+	/* Switch to new stack.  We allocate two 64 byte frames.  */
+	ldo	128(%arg2), %sp
+	/* Save previous stack pointer and return pointer in frame marker */
+	STREG	%r1, -68(%sp)
+	STREG	%rp, -84(%sp)
+	/* Calls use function descriptor if PLABEL bit is set */
+	bb,>=,n	%arg1, 30, 1f
+	depwi	0,31,2, %arg1
+	LDREG	0(%arg1), %arg1
+1:
+	be,l	0(%sr4,%arg1), %sr0, %r31
+	copy	%r31, %rp
+	LDREG	-84(%sp), %rp
+	bv	(%rp)
+	LDREG	-68(%sp), %sp
+# endif /* CONFIG_64BIT */
+ENDPROC(call_on_stack)
+#endif /* CONFIG_IRQSTACKS */
 
 get_register:
 	/*
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 61e51ac..810f9cf8 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -358,6 +358,29 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 #endif
 }
 
+#ifdef CONFIG_IRQSTACKS
+DEFINE_PER_CPU(union irq_stack_union, irq_stack_union);
+
+static void execute_on_irq_stack(void *func, unsigned long param1)
+{
+	unsigned long *irq_stack_start;
+	unsigned long irq_stack;
+	int cpu = smp_processor_id();
+
+	irq_stack_start = &per_cpu(irq_stack_union, cpu).stack[0];
+	irq_stack = (unsigned long) irq_stack_start;
+	irq_stack = ALIGN(irq_stack, 16); /* align for stack frame usage */
+
+	BUG_ON(*irq_stack_start); /* report bug if we were called recursive. */
+	*irq_stack_start = 1;
+
+	/* This is where we switch to the IRQ stack. */
+	call_on_stack(param1, func, irq_stack);
+
+	*irq_stack_start = 0;
+}
+#endif /* CONFIG_IRQSTACKS */
+
 /* ONLY called from entry.S:intr_extint() */
 void do_cpu_irq_mask(struct pt_regs *regs)
 {
@@ -393,7 +416,12 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	}
 #endif
 	stack_overflow_check(regs);
+
+#ifdef CONFIG_IRQSTACKS
+	execute_on_irq_stack(&generic_handle_irq, irq);
+#else
 	generic_handle_irq(irq);
+#endif /* CONFIG_IRQSTACKS */
 
  out:
 	irq_exit();
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Fix up build error on UP and show correctly number of function call
(ipi) irqs.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index a9c0fb1..12373c4 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -19,12 +19,8 @@ typedef struct {
 #ifdef CONFIG_SMP
 	unsigned int irq_resched_count;
 	unsigned int irq_call_count;
-	/*
-	 * irq_tlb_count is double-counted in irq_call_count, so it must be
-	 * subtracted from irq_call_count when displaying irq_call_count
-	 */
-	unsigned int irq_tlb_count;
 #endif
+	unsigned int irq_tlb_count;
 } ____cacheline_aligned irq_cpustat_t;
 
 DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index 8f1a810..5273da9 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -22,6 +22,8 @@ extern spinlock_t pa_tlb_lock;
 extern void flush_tlb_all(void);
 extern void flush_tlb_all_local(void *);
 
+#define smp_flush_tlb_all()	flush_tlb_all()
+
 /*
  * flush_tlb_mm()
  *
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index a237e32..e255db0 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -175,14 +175,13 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 	seq_printf(p, "  Rescheduling interrupts\n");
 	seq_printf(p, "%*s: ", prec, "CAL");
 	for_each_online_cpu(j)
-		seq_printf(p, "%10u ", irq_stats(j)->irq_call_count -
-					irq_stats(j)->irq_tlb_count);
+		seq_printf(p, "%10u ", irq_stats(j)->irq_call_count);
 	seq_printf(p, "  Function call interrupts\n");
+#endif
 	seq_printf(p, "%*s: ", prec, "TLB");
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_tlb_count);
 	seq_printf(p, "  TLB shootdowns\n");
-#endif
 	return 0;
 }
 
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 218e20b..e3614fb 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -264,17 +264,6 @@ void arch_send_call_function_single_ipi(int cpu)
 }
 
 /*
- * Flush all other CPU's tlb and then mine.  Do this with on_each_cpu()
- * as we want to ensure all TLB's flushed before proceeding.
- */
-
-void
-smp_flush_tlb_all(void)
-{
-	on_each_cpu(flush_tlb_all_local, NULL, 1);
-}

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	James Bottomley <James.Bottomley@HansenPartnership.com>
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Linus,

please pull the parisc architecture updates for v3.10 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-for-3.10


Main fixes and updates in this patch series are:
 - we faced kernel stack corruptions because of multiple delivery of interrupts
 - added kernel stack overflow checks
 - added possibility to use dedicated stacks for irq processing
 - initial support for page sizes > 4k
 - more information in /proc/interrupts (e.g. TLB flushes and number of IPI calls)
 - documented how the parisc gateway page works
 - and of course quite some other smaller cleanups and fixes.

Thanks,
Helge

----------------------------------------------------------------
Damian Hobson-Garcia (1):
      parisc: Provide default implementation for dma_{alloc, free}_attrs

Helge Deller (7):
      parisc: fix partly 16/64k PAGE_SIZE boot
      parisc: document the parisc gateway page
      parisc: implement atomic64_dec_if_positive()
      parisc: add kernel stack overflow check
      parisc: implement irq stacks
      parisc: more irq statistics in /proc/interrupts
      parisc: tlb flush counting fix for SMP and UP

John David Anglin (2):
      parisc: use long branch in fork_like macro
      parisc: only re-enable interrupts if we need to schedule or deliver signals when returning to userspace

Mike Frysinger (1):
      parisc: fix NATIVE set up in build

Rolf Eike Beer (1):
      parisc: fix whitespace errors in arch/parisc/kernel/traps.c

Zhao Hongjiang (1):
      parisc: remove the second argument of kmap_atomic

 arch/parisc/Kconfig                   |   9 +++
 arch/parisc/Kconfig.debug             |  11 ++++
 arch/parisc/Makefile                  |   4 +-
 arch/parisc/include/asm/atomic.h      |  23 ++++++++
 arch/parisc/include/asm/dma-mapping.h |   3 +
 arch/parisc/include/asm/hardirq.h     |  32 ++++++++++-
 arch/parisc/include/asm/processor.h   |  20 ++++++-
 arch/parisc/include/asm/thread_info.h |   2 +-
 arch/parisc/include/asm/tlbflush.h    |   2 +
 arch/parisc/kernel/cache.c            |   6 +-
 arch/parisc/kernel/entry.S            |  68 +++++++++++++++++++---
 arch/parisc/kernel/hpmc.S             |   4 +-
 arch/parisc/kernel/irq.c              | 104 +++++++++++++++++++++++++++++++++-
 arch/parisc/kernel/pacache.S          |  33 ++++++-----
 arch/parisc/kernel/setup.c            |   2 +
 arch/parisc/kernel/smp.c              |  14 +----
 arch/parisc/kernel/syscall.S          |  34 +++++++++--
 arch/parisc/kernel/traps.c            |  24 ++++----
 arch/parisc/kernel/vmlinux.lds.S      |   2 +-
 arch/parisc/mm/init.c                 |   2 +
 drivers/parisc/sba_iommu.c            |  19 +++++--
 21 files changed, 348 insertions(+), 70 deletions(-)
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] parisc: fix NATIVE set up in build
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Cc: linux-parisc@vger.kernel.org, Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>
To: Mike Frysinger <vapier@gentoo.org>
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This patch breaks builds on current Debian systems that want compiler  
prefixes
like hppa64-linux-gnu-", "hppa-linux-gnu-" or no prefix for native 32- 
bit.  The NATIVE
match previous failed and we got the correct FSF prefix.

Dave

On 4-May-13, at 12:50 PM, Mike Frysinger wrote:

> The ifeq operator does not accept globs, so this little bit of code  
> will
> never match (unless uname literally prints out "parsic*").  Rewrite to
> use a pattern matching operator so that NATIVE is set to 1 on parisc.
>
> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
> ---
> arch/parisc/Makefile | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
> index 113e282..2f967cc 100644
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
> @@ -24,9 +24,7 @@ CHECKFLAGS	+= -D__hppa__=1
> LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
>
> MACHINE		:= $(shell uname -m)
> -ifeq ($(MACHINE),parisc*)
> -NATIVE		:= 1
> -endif
> +NATIVE		:= $(if $(filter parisc%,$(MACHINE)),1,0)
>
> ifdef CONFIG_64BIT
> UTS_MACHINE	:= parisc64
> -- 
> 1.8.2.1
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux- 
> parisc" in
> the body of a message to majordomo@vger.kernel.org
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>

--
John David Anglin	dave.anglin@bell.net



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Hi Guys,

On Wed, 8 May 2013 00:11:02 +0200 Helge Deller <deller@gmx.de> wrote:
>
> please pull the parisc architecture updates for v3.10 from:
>=20
>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git p=
arisc-for-3.10

Does this mean that the parisc tree I have in linux-next
(git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git#for-next)
is defunct?

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

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From: Jiang Liu <liuj97@gmail.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5, part4 30/41] mm/PARISC: prepare for removing num_physpages and simplify mem_init()
Date: Wed,  8 May 2013 23:51:27 +0800
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Cc: Jiang Liu <jiang.liu@huawei.com>,
	David Rientjes <rientjes@google.com>,
	Wen Congyang <wency@cn.fujitsu.com>,
	Mel Gorman <mgorman@suse.de>,
	Minchan Kim <minchan@kernel.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Michal Hocko <mhocko@suse.cz>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/99564>

Prepare for removing num_physpages and simplify mem_init().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: linux-parisc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 arch/parisc/mm/init.c |   46 +++-------------------------------------------
 1 file changed, 3 insertions(+), 43 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1fe9d841..f80c175 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -214,7 +214,6 @@ static void __init setup_bootmem(void)
 	mem_limit_func();       /* check for "mem=" argument */
 
 	mem_max = 0;
-	num_physpages = 0;
 	for (i = 0; i < npmem_ranges; i++) {
 		unsigned long rsize;
 
@@ -229,10 +228,8 @@ static void __init setup_bootmem(void)
 				npmem_ranges = i + 1;
 				mem_max = mem_limit;
 			}
-	        num_physpages += pmem_ranges[i].pages;
 			break;
 		}
-	    num_physpages += pmem_ranges[i].pages;
 		mem_max += rsize;
 	}
 
@@ -532,7 +529,7 @@ void free_initmem(void)
 	 * pages are no-longer executable */
 	flush_icache_range(init_begin, init_end);
 	
-	num_physpages += free_initmem_default(-1);
+	free_initmem_default(-1);
 
 	/* set up a new led state on systems shipped LED State panel */
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE);
@@ -580,8 +577,6 @@ unsigned long pcxl_dma_start __read_mostly;
 
 void __init mem_init(void)
 {
-	int codesize, reservedpages, datasize, initsize;
-
 	/* Do sanity checks on page table constants */
 	BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
 	BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));
@@ -603,33 +598,6 @@ void __init mem_init(void)
 	}
 #endif
 
-	codesize = (unsigned long)_etext - (unsigned long)_text;
-	datasize = (unsigned long)_edata - (unsigned long)_etext;
-	initsize = (unsigned long)__init_end - (unsigned long)__init_begin;
-
-	reservedpages = 0;
-{
-	unsigned long pfn;
-#ifdef CONFIG_DISCONTIGMEM
-	int i;
-
-	for (i = 0; i < npmem_ranges; i++) {
-		for (pfn = node_start_pfn(i); pfn < node_end_pfn(i); pfn++) {
-			if (PageReserved(pfn_to_page(pfn)))
-				reservedpages++;
-		}
-	}
-#else /* !CONFIG_DISCONTIGMEM */
-	for (pfn = 0; pfn < max_pfn; pfn++) {
-		/*
-		 * Only count reserved RAM pages
-		 */
-		if (PageReserved(pfn_to_page(pfn)))
-			reservedpages++;
-	}
-#endif
-}
-
 #ifdef CONFIG_PA11
 	if (hppa_dma_ops == &pcxl_dma_ops) {
 		pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
@@ -643,15 +611,7 @@ void __init mem_init(void)
 	parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
 #endif
 
-	printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n",
-		nr_free_pages() << (PAGE_SHIFT-10),
-		num_physpages << (PAGE_SHIFT-10),
-		codesize >> 10,
-		reservedpages << (PAGE_SHIFT-10),
-		datasize >> 10,
-		initsize >> 10
-	);
-
+	mem_init_print_info(NULL);
 #ifdef CONFIG_DEBUG_KERNEL /* double-sanity-check paranoia */
 	printk("virtual kernel memory layout:\n"
 	       "    vmalloc : 0x%p - 0x%p   (%4ld MB)\n"
@@ -1099,6 +1059,6 @@ void flush_tlb_all(void)
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-	num_physpages += free_reserved_area(start, end, -1, "initrd");
+	free_reserved_area(start, end, -1, "initrd");
 }
 #endif
-- 
1.7.9.5

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From - Thu Nov 08 21:09:12 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [RFC] [PATCH] parisc: use Page Deallocation Table from firmware to
 exclude broken memory (v1)
Date: Wed, 8 May 2013 22:22:06 +0200
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To: linux-parisc@vger.kernel.org,
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This is an initial patch which uses the Page Deallocation Table (PDT) from
firmware to exclude known-to-be-broken memory regions.

Currently only reporting is implemented.

TODOs:
- really exclude broken memory regions from being used by Linux
- check if PDT works as expected on a 32bit kernel as well.
- check if currently implemented reporting is correct.

Feedback/Testers (with broken hardware :-)) wanted!

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 7eb616e..8b8ad6f 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -143,6 +143,18 @@ struct pdc_btlb_info {	/* PDC_BLOCK_TLB, return of PDC_BTLB_INFO */
 
 #endif /* !CONFIG_PA20 */
 
+struct pdc_memory_retinfo { /* PDC_MEM/PDC_MEM_MEMINFO (return info) */
+	unsigned long pdt_size;
+	unsigned long page_entries;
+	unsigned long pdt_status;
+	unsigned long dbe_loc;
+	unsigned long good_mem;
+};
+
+struct pdc_memory_read_pdt { /* PDC_MEM/PDC_MEM_READ_PDT (return info) */
+	unsigned long page_entries;
+};
+
 #ifdef CONFIG_64BIT
 struct pdc_memory_table_raddr { /* PDC_MEM/PDC_MEM_TABLE (return info) */
 	unsigned long entries_returned;
@@ -301,6 +313,9 @@ int pdc_get_initiator(struct hardware_path *, struct pdc_initiator *);
 int pdc_tod_read(struct pdc_tod *tod);
 int pdc_tod_set(unsigned long sec, unsigned long usec);
 
+int pdc_mem_pdt_info(struct pdc_memory_retinfo *rinfo);
+int pdc_mem_pdt_read_entries(struct pdc_memory_read_pdt *rpdt_read,
+		unsigned long *pdt_entries_ptr);
 #ifdef CONFIG_64BIT
 int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr,
 		struct pdc_memory_table *tbl, unsigned long entries);
diff --git a/arch/parisc/include/uapi/asm/pdc.h b/arch/parisc/include/uapi/asm/pdc.h
index 702498f..b067b86 100644
--- a/arch/parisc/include/uapi/asm/pdc.h
+++ b/arch/parisc/include/uapi/asm/pdc.h
@@ -131,12 +131,12 @@
 #define PDC_TLB_SETUP		1	/* set up miss handling 	*/
 
 #define PDC_MEM		20		/* Manage memory		*/
-#define PDC_MEM_MEMINFO		0
-#define PDC_MEM_ADD_PAGE	1
-#define PDC_MEM_CLEAR_PDT	2
-#define PDC_MEM_READ_PDT	3
-#define PDC_MEM_RESET_CLEAR	4
-#define PDC_MEM_GOODMEM		5
+#define PDC_MEM_MEMINFO		0	/* Return Page Deallocation Table (PDT) info */
+#define PDC_MEM_ADD_PAGE	1	/* Add page to PDT		*/
+#define PDC_MEM_CLEAR_PDT	2	/* Clear PDT			*/
+#define PDC_MEM_READ_PDT	3	/* Read PDT entry		*/
+#define PDC_MEM_RESET_CLEAR	4	/* Reset PDT clear flag		*/
+#define PDC_MEM_GOODMEM		5	/* Set good_mem value		*/
 #define PDC_MEM_TABLE		128	/* Non contig mem map (sprockets) */
 #define PDC_MEM_RETURN_ADDRESS_TABLE	PDC_MEM_TABLE
 #define PDC_MEM_GET_MEMORY_SYSTEM_TABLES_SIZE	131
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index f65fa48..87ad71c 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -955,6 +955,41 @@ int pdc_tod_read(struct pdc_tod *tod)
 }
 EXPORT_SYMBOL(pdc_tod_read);
 
+int __init pdc_mem_pdt_info(struct pdc_memory_retinfo *rinfo)
+{
+	int retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_MEM, PDC_MEM_MEMINFO, __pa(pdc_result), 0);
+	convert_to_wide(pdc_result);
+	memcpy(rinfo, pdc_result, sizeof(*rinfo));
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
+
+int __init pdc_mem_pdt_read_entries(struct pdc_memory_read_pdt *rpdt_read,
+		unsigned long *pdt_entries_ptr)
+{
+	int retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_MEM, PDC_MEM_READ_PDT, __pa(pdc_result),
+			__pa(pdc_result2));
+	if (retval == PDC_OK) {
+		convert_to_wide(pdc_result);
+		memcpy(rpdt_read, pdc_result, sizeof(*rpdt_read));
+		convert_to_wide(pdc_result2);
+		memcpy(pdt_entries_ptr, pdc_result2,
+			rpdt_read->page_entries * sizeof(*pdt_entries_ptr));
+	}
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
+
 /**
  * pdc_tod_set - Set the Time-Of-Day clock.
  * @sec: The number of seconds since epoch.
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index ce939ac..32b9bbc 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -111,6 +111,49 @@ static void __init mem_limit_func(void)
 		mem_limit = limit;
 }
 
+/*
+ * Check Page Deallocation Table (PDT). The PDT is maintained in firmware and
+ * provides a list of bad memory areas.
+ */
+static int __init reserve_pdt_pages(void)
+{
+	int ret, i;
+	struct pdc_memory_retinfo rinfo;
+	struct pdc_memory_read_pdt pdt_read_ret;
+	unsigned long pdt_entry[80];
+
+	ret = pdc_mem_pdt_info(&rinfo);
+	if (ret != PDC_OK) {
+		pr_warn("Firmware (PDT) provides invalid information (%d).\n",
+			ret);
+		return 0;
+	}
+
+	/* printk("PDT: ret = %d, pdt_size = %lu, page_entries = %lu,
+			pdt_status = %lu, dbe_loc = %lu, good_mem = %lu\n",
+			ret, rinfo.pdt_size, rinfo.page_entries,
+			rinfo.pdt_status, rinfo.dbe_loc, rinfo.good_mem); */
+
+	if (rinfo.page_entries == 0) {
+		pr_info("Firmware (PDT) reports fully functional memory.\n");
+		return 0;
+	}
+
+	pr_warn("WARNING: Firmware (PDT) reports %lu pages of broken memory:\n",
+		rinfo.page_entries);
+	BUG_ON(rinfo.page_entries > ARRAY_SIZE(pdt_entry));
+
+	ret = pdc_mem_pdt_read_entries(&pdt_read_ret, pdt_entry);
+	BUG_ON(ret != PDC_OK);
+
+	for (i = 0; i < pdt_read_ret.page_entries; i++)
+		pr_warn("BAD PAGE at 0x%lx (error_tye = %lu)\n",
+			pdt_entry[i] & (1UL << (BITS_PER_LONG-4)),
+			pdt_entry[i] >> (BITS_PER_LONG-1));
+
+	return 0;
+}
+
 #define MAX_GAP (0x40000000UL >> PAGE_SHIFT)
 
 static void __init setup_bootmem(void)
@@ -202,6 +245,9 @@ static void __init setup_bootmem(void)
 		request_resource(&iomem_resource, res);
 	}
 
+	/* Check Page Deallocation Table (PDT) for bad memory. */
+	reserve_pdt_pages();
+
 	/*
 	 * For 32 bit kernels we limit the amount of memory we can
 	 * support, in order to preserve enough kernel address space
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We need to enable local irqs to avoid this runtime warning.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 55f92b6..2840d43 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -286,3 +286,8 @@ void *dereference_function_descriptor(void *ptr)
 	return ptr;
 }
 #endif
+
+void arch_cpu_idle(void)
+{
+	local_irq_enable();
+}
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH] parisc: avoid WARNING: at kernel/cpu/idle.c:96
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Cc: linux-parisc@vger.kernel.org,
	John David Anglin <dave.anglin@bell.net>,
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	Thomas Gleixner <tglx@linutronix.de>
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On Wed, 2013-05-08 at 22:42 +0200, Helge Deller wrote:
> We need to enable local irqs to avoid this runtime warning.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
> index 55f92b6..2840d43 100644
> --- a/arch/parisc/kernel/process.c
> +++ b/arch/parisc/kernel/process.c
> @@ -286,3 +286,8 @@ void *dereference_function_descriptor(void *ptr)
>  	return ptr;
>  }
>  #endif
> +
> +void arch_cpu_idle(void)
> +{
> +	local_irq_enable();

This is definitely wrong.  we'd need at least a cpu_relax() in there.
Without that the cpu will bounce around in the idle loop.  I'd advise
that we simply keep the default cpu_idle_poll().

However, this looks like a kernel bug to me in cpu_idle_loop()?  not
something we should be working around in the arch code.

Thomas, what's going on here?  It looks like you can never avoid the
WARN_ON_ONCE if you don't provide any arch specific idle functions.  If
you wish to allow this case then the correct patch (keeping the WARN_ON)
would appear to be this one.

James

----
diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c
index 8b86c0c..829e41f 100644
--- a/kernel/cpu/idle.c
+++ b/kernel/cpu/idle.c
@@ -56,6 +56,7 @@ void __weak arch_cpu_idle_dead(void) { }
 void __weak arch_cpu_idle(void)
 {
 	cpu_idle_force_poll = 1;
+	local_irq_enable();
 }
 
 /*


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From - Thu Nov 08 21:09:13 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: implement irq stacks - part 2
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This patch fixes few build issues which were introduced with the last
irq stack patch, e.g. the combination of stack overflow check and irq
stack.

Furthermore it now does proper locking and changes the irq bh handler to
use the irq stack as well.

One issue still needs fixing: The irq stack usage counter will not be
incremented and will show zero.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index 12373c4..c4be3c7 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -11,10 +11,17 @@
 #include <linux/threads.h>
 #include <linux/irq.h>
 
+#ifdef CONFIG_IRQSTACKS
+#define __ARCH_HAS_DO_SOFTIRQ
+#endif
+
 typedef struct {
 	unsigned int __softirq_pending;
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
 	unsigned int kernel_stack_usage;
+#ifdef CONFIG_IRQSTACKS
+	unsigned int irq_stack_usage;
+#endif
 #endif
 #ifdef CONFIG_SMP
 	unsigned int irq_resched_count;
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 0640155..cfbc439 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -63,10 +63,13 @@
  */
 #ifdef __KERNEL__
 
+#include <linux/spinlock_types.h>
+
 #define IRQ_STACK_SIZE      (4096 << 2) /* 16k irq stack size */
 
 union irq_stack_union {
 	unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
+	raw_spinlock_t lock;
 };
 
 DECLARE_PER_CPU(union irq_stack_union, irq_stack_union);
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index e255db0..010a1fc 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -166,22 +166,28 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 	seq_printf(p, "%*s: ", prec, "STK");
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->kernel_stack_usage);
-	seq_printf(p, "  Kernel stack usage\n");
+	seq_puts(p, "  Kernel stack usage\n");
+# ifdef CONFIG_IRQSTACKS
+	seq_printf(p, "%*s: ", prec, "IST");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10u ", irq_stats(j)->irq_stack_usage);
+	seq_puts(p, "  Interrupt stack usage\n");
+# endif
 #endif
 #ifdef CONFIG_SMP
 	seq_printf(p, "%*s: ", prec, "RES");
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_resched_count);
-	seq_printf(p, "  Rescheduling interrupts\n");
+	seq_puts(p, "  Rescheduling interrupts\n");
 	seq_printf(p, "%*s: ", prec, "CAL");
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_call_count);
-	seq_printf(p, "  Function call interrupts\n");
+	seq_puts(p, "  Function call interrupts\n");
 #endif
 	seq_printf(p, "%*s: ", prec, "TLB");
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_tlb_count);
-	seq_printf(p, "  TLB shootdowns\n");
+	seq_puts(p, "  TLB shootdowns\n");
 	return 0;
 }
 
@@ -378,6 +384,7 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 	unsigned long sp = regs->gr[30];
 	unsigned long stack_usage;
 	unsigned int *last_usage;
+	int cpu = smp_processor_id();
 
 	/* if sr7 != 0, we interrupted a userspace process which we do not want
 	 * to check for stack overflow. We will only check the kernel stack. */
@@ -386,7 +393,31 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 
 	/* calculate kernel stack usage */
 	stack_usage = sp - stack_start;
-	last_usage = &per_cpu(irq_stat.kernel_stack_usage, smp_processor_id());
+#ifdef CONFIG_IRQSTACKS
+	if (likely(stack_usage <= THREAD_SIZE))
+		goto check_kernel_stack; /* found kernel stack */
+
+	/* check irq stack usage */
+	stack_start = (unsigned long) &per_cpu(irq_stack_union, cpu).stack;
+	stack_usage = sp - stack_start;
+
+	last_usage = &per_cpu(irq_stat.irq_stack_usage, cpu);
+	if (unlikely(stack_usage > *last_usage))
+		*last_usage = stack_usage;
+
+	if (likely(stack_usage < (IRQ_STACK_SIZE - STACK_MARGIN)))
+		return;
+
+	pr_emerg("stackcheck: %s will most likely overflow irq stack "
+		 "(sp:%lx, stk bottom-top:%lx-%lx)\n",
+		current->comm, sp, stack_start, stack_start + IRQ_STACK_SIZE);
+	goto panic_check;
+
+check_kernel_stack:
+#endif
+
+	/* check kernel stack usage */
+	last_usage = &per_cpu(irq_stat.kernel_stack_usage, cpu);
 
 	if (unlikely(stack_usage > *last_usage))
 		*last_usage = stack_usage;
@@ -398,31 +429,66 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 		 "(sp:%lx, stk bottom-top:%lx-%lx)\n",
 		current->comm, sp, stack_start, stack_start + THREAD_SIZE);
 
+#ifdef CONFIG_IRQSTACKS
+panic_check:
+#endif
 	if (sysctl_panic_on_stackoverflow)
 		panic("low stack detected by irq handler - check messages\n");
 #endif
 }
 
 #ifdef CONFIG_IRQSTACKS
-DEFINE_PER_CPU(union irq_stack_union, irq_stack_union);
+DEFINE_PER_CPU(union irq_stack_union, irq_stack_union) =
+	{ .lock = __RAW_SPIN_LOCK_UNLOCKED((irq_stack_union).lock)  };
 
 static void execute_on_irq_stack(void *func, unsigned long param1)
 {
-	unsigned long *irq_stack_start;
+	union irq_stack_union *union_ptr;
 	unsigned long irq_stack;
-	int cpu = smp_processor_id();
+	raw_spinlock_t *irq_stack_in_use;
 
-	irq_stack_start = &per_cpu(irq_stack_union, cpu).stack[0];
-	irq_stack = (unsigned long) irq_stack_start;
-	irq_stack = ALIGN(irq_stack, 16); /* align for stack frame usage */
+	union_ptr = &per_cpu(irq_stack_union, smp_processor_id());
+	irq_stack = (unsigned long) &union_ptr->stack;
+	irq_stack = ALIGN(irq_stack + sizeof(irq_stack_union.lock),
+			 64); /* align for stack frame usage */
+
+	/* We may be called recursive. If we are already using the irq stack,
+	 * just continue to use it. Use the atomic ldcw instruction to serialize
+	 * the irq stack usage.
+	 */
+	irq_stack_in_use = &union_ptr->lock;
+	if (!do_raw_spin_trylock(irq_stack_in_use)) {
+		void (*direct_call)(unsigned long p1) = func;
 
-	BUG_ON(*irq_stack_start); /* report bug if we were called recursive. */
-	*irq_stack_start = 1;
+		/* We are using the IRQ stack already.
+		 * Do direct call on current stack. */
+		direct_call(param1);
+		return;
+	}
 
 	/* This is where we switch to the IRQ stack. */
 	call_on_stack(param1, func, irq_stack);
 
-	*irq_stack_start = 0;
+	/* free up irq stack use. */
+	do_raw_spin_unlock(irq_stack_in_use);
+}
+
+asmlinkage void do_softirq(void)
+{
+	__u32 pending;
+	unsigned long flags;
+
+	if (in_interrupt())
+		return;
+
+	local_irq_save(flags);
+
+	pending = local_softirq_pending();
+
+	if (pending)
+		execute_on_irq_stack(__do_softirq, 0);
+
+	local_irq_restore(flags);
 }
 #endif /* CONFIG_IRQSTACKS */
 
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On Tuesday 07 May 2013 19:24:04 John David Anglin wrote:
> This patch breaks builds on current Debian systems that want compiler
> prefixes
> like hppa64-linux-gnu-", "hppa-linux-gnu-" or no prefix for native 32-
> bit.  The NATIVE
> match previous failed and we got the correct FSF prefix.

that was the intention of the code
-mike

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From: Mike Frysinger <vapier@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: make default cross compiler search more robust
Date: Thu,  9 May 2013 01:08:35 -0400
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To: linux-parisc@vger.kernel.org, Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>
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People/distros vary how they prefix the toolchain name for 64bit builds.
Rather than enforce one convention over another, add a for loop which
does a search for all the general prefixes.  This code will run for both
native and cross builds when CROSS_COMPILE isn't explicitly set.

For 64bit builds, we now search for (in order):
	hppa64-unknown-linux-gnu
	hppa64-linux-gnu
	hppa64-linux

For 32bit builds, we look for:
	hppa-unknown-linux-gnu
	hppa-linux-gnu
	hppa-linux
	hppa1.1-unknown-linux-gnu
	hppa1.1-linux-gnu
	hppa1.1-linux
	hppa2.0-unknown-linux-gnu
	hppa2.0-linux-gnu
	hppa2.0-linux

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 arch/parisc/Makefile | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 2f967cc..523ae34 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -23,9 +23,6 @@ NM		= sh $(srctree)/arch/parisc/nm
 CHECKFLAGS	+= -D__hppa__=1
 LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 
-MACHINE		:= $(shell uname -m)
-NATIVE		:= $(if $(filter parisc%,$(MACHINE)),1,0)
-
 ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
@@ -35,12 +32,17 @@ WIDTH		:=
 endif
 
 # attempt to help out folks who are cross-compiling
-ifeq ($(NATIVE),1)
-CROSS_COMPILE	:= hppa$(WIDTH)-linux-
-else
- ifeq ($(CROSS_COMPILE),)
- CROSS_COMPILE	:= hppa$(WIDTH)-linux-gnu-
- endif
+ifeq ($(CROSS_COMPILE),)
+CROSS_COMPILE := $(shell \
+	arches="hppa$(WIDTH)"; \
+	[ -z "$(WIDTH)" ] && arches="$$a hppa1.1 hppa2.0"; \
+	for a in $$arches; do \
+		for p in unknown-linux-gnu linux-gnu linux; do \
+			c="$$a-$$p-"; \
+			command -v $${c}gcc >/dev/null 2>&1 && echo $$c && break 2; \
+		done; \
+	done \
+)
 endif
 
 OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
-- 
1.8.2.1

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From: Jeroen Roovers <jer@gentoo.org>
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Subject: Re: [PATCH] parisc: make default cross compiler search more robust
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On Thu,  9 May 2013 01:08:35 -0400
Mike Frysinger <vapier@gentoo.org> wrote:

> People/distros vary how they prefix the toolchain name for 64bit
> builds. Rather than enforce one convention over another, add a for
> loop which does a search for all the general prefixes.  This code
> will run for both native and cross builds when CROSS_COMPILE isn't
> explicitly set.

Several architectures appear to use a scriptlet called 
cc-cross-prefix for this. See scripts/Kbuild.include.


     jer
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Subject: Re: [PATCH] parisc: make default cross compiler search more robust
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On 05/09/2013 02:28 PM, Jeroen Roovers wrote:
> On Thu,  9 May 2013 01:08:35 -0400
> Mike Frysinger <vapier@gentoo.org> wrote:
> 
>> People/distros vary how they prefix the toolchain name for 64bit
>> builds. Rather than enforce one convention over another, add a for
>> loop which does a search for all the general prefixes.  This code
>> will run for both native and cross builds when CROSS_COMPILE isn't
>> explicitly set.
> 
> Several architectures appear to use a scriptlet called 
> cc-cross-prefix for this. See scripts/Kbuild.include.

That's cool :-)

Basically this

+ifneq ($(SUBARCH),$(ARCH))
+       ifeq ($(CROSS_COMPILE),)
+               CROSS_COMPILE := $(call cc-cross-prefix, hppa$(WIDTH)-linux- hppa$(WIDTH)-linux-gnu-)
+       endif
 endif

should then be enough.

Do we really need to search for: 
	hppa1.1-unknown-linux-gnu
	hppa1.1-linux-gnu
	hppa1.1-linux
	hppa2.0-unknown-linux-gnu
	hppa2.0-linux-gnu
	hppa2.0-linux
on 32bit?

Helge
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On Thursday 09 May 2013 09:14:51 Helge Deller wrote:
> On 05/09/2013 02:28 PM, Jeroen Roovers wrote:
> > On Thu,  9 May 2013 01:08:35 -0400 Mike Frysinger wrote:
> >> People/distros vary how they prefix the toolchain name for 64bit
> >> builds. Rather than enforce one convention over another, add a for
> >> loop which does a search for all the general prefixes.  This code
> >> will run for both native and cross builds when CROSS_COMPILE isn't
> >> explicitly set.
> >=20
> > Several architectures appear to use a scriptlet called
> > cc-cross-prefix for this. See scripts/Kbuild.include.
>=20
> That's cool :-)
>=20
> Basically this
>=20
> +ifneq ($(SUBARCH),$(ARCH))
> +       ifeq ($(CROSS_COMPILE),)
> +               CROSS_COMPILE :=3D $(call cc-cross-prefix,
> hppa$(WIDTH)-linux- hppa$(WIDTH)-linux-gnu-)
> +       endif
>  endif
>=20
> should then be enough.
>=20
> Do we really need to search for:
> 	hppa1.1-unknown-linux-gnu
> 	hppa1.1-linux-gnu
> 	hppa1.1-linux
> 	hppa2.0-unknown-linux-gnu
> 	hppa2.0-linux-gnu
> 	hppa2.0-linux
> on 32bit?

Gentoo actively uses hppa1.1 and hppa2.0 (i'm not sure we have any systems=
=20
that don't use those).  we've seen some projects key off of those tuples (l=
ike=20
gmp) to change code selection.

similarly, the reason i included -unknown- is that is the tuple we use in=20
Gentoo for our native toolchain.  for 64bit ones, we've been using ${ARCH}6=
4-
linux as it was only good for building the kernel ... it didn't include a C=
=20
lib itself.

along that last line, hppa is the only target anymore where we have a=20
dedicated 64bit compiler for the kernel.  all the other ports have biarch=20
support in gcc/binutils :/.

CC_ARCHES =3D hppa$(WIDTH) hppa1.1 hppa2.0
CC_SUFFIXES =3D linux linux-gnu unknown-linux-gnu
CROSS_COMPILE :=3D $(call cc-cross-prefix, \
	$(foreach a,$(CC_ARCHES),$(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
=2Dmike

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From - Thu Nov 08 21:09:13 2018
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Subject: Re: [GIT PULL] parisc updates for v3.10
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To: Stephen Rothwell <sfr@canb.auug.org.au>
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Hi Stephen,

On 05/08/2013 03:37 AM, Stephen Rothwell wrote:
> On Wed, 8 May 2013 00:11:02 +0200 Helge Deller <deller@gmx.de> wrote:
>>
>> please pull the parisc architecture updates for v3.10 from:
>>
>>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-for-3.10
> 
> Does this mean that the parisc tree I have in linux-next
> (git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git#for-next)
> is defunct?

Not sure. It will be either James or me who will send pull requests...
Of course we will agree who of us will do that and from which tree.

So, would it hurt if you add a second parisc tree for linux-next?
I've just created a "for-next" branch in my git repository: 
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git#for-next

Helge
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To: Helge Deller <deller@gmx.de>
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Hi Helge,

On Thu, 09 May 2013 22:31:04 +0200 Helge Deller <deller@gmx.de> wrote:
>
> On 05/08/2013 03:37 AM, Stephen Rothwell wrote:
> > On Wed, 8 May 2013 00:11:02 +0200 Helge Deller <deller@gmx.de> wrote:
> >>
> >> please pull the parisc architecture updates for v3.10 from:
> >>
> >>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.gi=
t parisc-for-3.10
> >=20
> > Does this mean that the parisc tree I have in linux-next
> > (git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git#for-=
next)
> > is defunct?
>=20
> Not sure. It will be either James or me who will send pull requests...
> Of course we will agree who of us will do that and from which tree.
>=20
> So, would it hurt if you add a second parisc tree for linux-next?
> I've just created a "for-next" branch in my git repository:=20
> git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git#for=
-next

I have no problem having both trees in linux-next (as long as you don't
tread on each other's toes and cause merge problem too often :-)).

I have added your tree from today (noting that it is empty).  I have set
you and the parisc mailing list as contacts.

Thanks for adding your subsystem tree as a participant of linux-next.  As
you may know, this is not a judgment of your code.  The purpose of
linux-next is for integration testing and to lower the impact of
conflicts between subsystems in the next merge window.=20

You will need to ensure that the patches/commits in your tree/series have
been:
     * submitted under GPL v2 (or later) and include the Contributor's
	Signed-off-by,
     * posted to the relevant mailing list,
     * reviewed by you (or another maintainer of your subsystem tree),
     * successfully unit tested, and=20
     * destined for the current or next Linux merge window.

Basically, this should be just what you would send to Linus (or ask him
to fetch).  It is allowed to be rebased if you deem it necessary.

--=20
Cheers,
Stephen Rothwell=20
sfr@canb.auug.org.au

Legal Stuff:
By participating in linux-next, your subsystem tree contributions are
public and will be included in the linux-next trees.  You may be sent
e-mail messages indicating errors or other issues when the
patches/commits from your subsystem tree are merged and tested in
linux-next.  These messages may also be cross-posted to the linux-next
mailing list, the linux-kernel mailing list, etc.  The linux-next tree
project and IBM (my employer) make no warranties regarding the linux-next
project, the testing procedures, the results, the e-mails, etc.  If you
don't agree to these ground rules, let me know and I'll remove your tree
from participation in linux-next.

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From - Thu Nov 08 21:09:14 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: implement irq stacks - part 2 (v2)
Date: Fri, 10 May 2013 23:24:01 +0200
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To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
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This patch fixes few build issues which were introduced with the last
irq stack patch, e.g. the combination of stack overflow check and irq
stack.

Furthermore we now do proper locking and change the irq bh handler
to use the irq stack as well.

In /proc/interrupts one now can monitor how huge the irq stack has grown
and how often it was preferred over the kernel stack.

IRQ stacks are now enabled by default just to make sure that we not
overflow the kernel stack by accident.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index cad060f..6507dab 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -245,7 +245,7 @@ config SMP
 
 config IRQSTACKS
 	bool "Use separate kernel stacks when processing interrupts"
-	default n
+	default y
 	help
 	  If you say Y here the kernel will use separate kernel stacks
 	  for handling hard and soft interrupts.  This can help avoid
diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index 12373c4..c19f713 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -11,10 +11,18 @@
 #include <linux/threads.h>
 #include <linux/irq.h>
 
+#ifdef CONFIG_IRQSTACKS
+#define __ARCH_HAS_DO_SOFTIRQ
+#endif
+
 typedef struct {
 	unsigned int __softirq_pending;
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
 	unsigned int kernel_stack_usage;
+#ifdef CONFIG_IRQSTACKS
+	unsigned int irq_stack_usage;
+	unsigned int irq_stack_counter;
+#endif
 #endif
 #ifdef CONFIG_SMP
 	unsigned int irq_resched_count;
@@ -28,6 +36,7 @@ DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
 #define __ARCH_IRQ_STAT
 #define __IRQ_STAT(cpu, member) (irq_stat[cpu].member)
 #define inc_irq_stat(member)	this_cpu_inc(irq_stat.member)
+#define __inc_irq_stat(member)	__this_cpu_inc(irq_stat.member)
 #define local_softirq_pending()	this_cpu_read(irq_stat.__softirq_pending)
 
 #define __ARCH_SET_SOFTIRQ_PENDING
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 0640155..cfbc439 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -63,10 +63,13 @@
  */
 #ifdef __KERNEL__
 
+#include <linux/spinlock_types.h>
+
 #define IRQ_STACK_SIZE      (4096 << 2) /* 16k irq stack size */
 
 union irq_stack_union {
 	unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
+	raw_spinlock_t lock;
 };
 
 DECLARE_PER_CPU(union irq_stack_union, irq_stack_union);
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index e255db0..55237a7 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -166,22 +166,32 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 	seq_printf(p, "%*s: ", prec, "STK");
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->kernel_stack_usage);
-	seq_printf(p, "  Kernel stack usage\n");
+	seq_puts(p, "  Kernel stack usage\n");
+# ifdef CONFIG_IRQSTACKS
+	seq_printf(p, "%*s: ", prec, "IST");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10u ", irq_stats(j)->irq_stack_usage);
+	seq_puts(p, "  Interrupt stack usage\n");
+	seq_printf(p, "%*s: ", prec, "ISC");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10u ", irq_stats(j)->irq_stack_counter);
+	seq_puts(p, "  Interrupt stack usage counter\n");
+# endif
 #endif
 #ifdef CONFIG_SMP
 	seq_printf(p, "%*s: ", prec, "RES");
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_resched_count);
-	seq_printf(p, "  Rescheduling interrupts\n");
+	seq_puts(p, "  Rescheduling interrupts\n");
 	seq_printf(p, "%*s: ", prec, "CAL");
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_call_count);
-	seq_printf(p, "  Function call interrupts\n");
+	seq_puts(p, "  Function call interrupts\n");
 #endif
 	seq_printf(p, "%*s: ", prec, "TLB");
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_tlb_count);
-	seq_printf(p, "  TLB shootdowns\n");
+	seq_puts(p, "  TLB shootdowns\n");
 	return 0;
 }
 
@@ -378,6 +388,7 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 	unsigned long sp = regs->gr[30];
 	unsigned long stack_usage;
 	unsigned int *last_usage;
+	int cpu = smp_processor_id();
 
 	/* if sr7 != 0, we interrupted a userspace process which we do not want
 	 * to check for stack overflow. We will only check the kernel stack. */
@@ -386,7 +397,31 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 
 	/* calculate kernel stack usage */
 	stack_usage = sp - stack_start;
-	last_usage = &per_cpu(irq_stat.kernel_stack_usage, smp_processor_id());
+#ifdef CONFIG_IRQSTACKS
+	if (likely(stack_usage <= THREAD_SIZE))
+		goto check_kernel_stack; /* found kernel stack */
+
+	/* check irq stack usage */
+	stack_start = (unsigned long) &per_cpu(irq_stack_union, cpu).stack;
+	stack_usage = sp - stack_start;
+
+	last_usage = &per_cpu(irq_stat.irq_stack_usage, cpu);
+	if (unlikely(stack_usage > *last_usage))
+		*last_usage = stack_usage;
+
+	if (likely(stack_usage < (IRQ_STACK_SIZE - STACK_MARGIN)))
+		return;
+
+	pr_emerg("stackcheck: %s will most likely overflow irq stack "
+		 "(sp:%lx, stk bottom-top:%lx-%lx)\n",
+		current->comm, sp, stack_start, stack_start + IRQ_STACK_SIZE);
+	goto panic_check;
+
+check_kernel_stack:
+#endif
+
+	/* check kernel stack usage */
+	last_usage = &per_cpu(irq_stat.kernel_stack_usage, cpu);
 
 	if (unlikely(stack_usage > *last_usage))
 		*last_usage = stack_usage;
@@ -398,31 +433,69 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 		 "(sp:%lx, stk bottom-top:%lx-%lx)\n",
 		current->comm, sp, stack_start, stack_start + THREAD_SIZE);
 
+#ifdef CONFIG_IRQSTACKS
+panic_check:
+#endif
 	if (sysctl_panic_on_stackoverflow)
 		panic("low stack detected by irq handler - check messages\n");
 #endif
 }
 
 #ifdef CONFIG_IRQSTACKS
-DEFINE_PER_CPU(union irq_stack_union, irq_stack_union);
+DEFINE_PER_CPU(union irq_stack_union, irq_stack_union) = {
+		.lock = __RAW_SPIN_LOCK_UNLOCKED((irq_stack_union).lock)
+	};
 
 static void execute_on_irq_stack(void *func, unsigned long param1)
 {
-	unsigned long *irq_stack_start;
+	union irq_stack_union *union_ptr;
 	unsigned long irq_stack;
-	int cpu = smp_processor_id();
+	raw_spinlock_t *irq_stack_in_use;
 
-	irq_stack_start = &per_cpu(irq_stack_union, cpu).stack[0];
-	irq_stack = (unsigned long) irq_stack_start;
-	irq_stack = ALIGN(irq_stack, 16); /* align for stack frame usage */
+	union_ptr = &per_cpu(irq_stack_union, smp_processor_id());
+	irq_stack = (unsigned long) &union_ptr->stack;
+	irq_stack = ALIGN(irq_stack + sizeof(irq_stack_union.lock),
+			 64); /* align for stack frame usage */
 
-	BUG_ON(*irq_stack_start); /* report bug if we were called recursive. */
-	*irq_stack_start = 1;
+	/* We may be called recursive. If we are already using the irq stack,
+	 * just continue to use it. Use spinlocks to serialize
+	 * the irq stack usage.
+	 */
+	irq_stack_in_use = &union_ptr->lock;
+	if (!raw_spin_trylock(irq_stack_in_use)) {
+		void (*direct_call)(unsigned long p1) = func;
+
+		/* We are using the IRQ stack already.
+		 * Do direct call on current stack. */
+		direct_call(param1);
+		return;
+	}
 
 	/* This is where we switch to the IRQ stack. */
 	call_on_stack(param1, func, irq_stack);
 
-	*irq_stack_start = 0;
+	__inc_irq_stat(irq_stack_counter);
+
+	/* free up irq stack usage. */
+	do_raw_spin_unlock(irq_stack_in_use);
+}
+
+asmlinkage void do_softirq(void)
+{
+	__u32 pending;
+	unsigned long flags;
+
+	if (in_interrupt())
+		return;
+
+	local_irq_save(flags);
+
+	pending = local_softirq_pending();
+
+	if (pending)
+		execute_on_irq_stack(__do_softirq, 0);
+
+	local_irq_restore(flags);
 }
 #endif /* CONFIG_IRQSTACKS */
 
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index ce939ac..1c96564 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -1069,7 +1069,7 @@ void flush_tlb_all(void)
 {
 	int do_recycle;
 
-	inc_irq_stat(irq_tlb_count);
+	__inc_irq_stat(irq_tlb_count);
 	do_recycle = 0;
 	spin_lock(&sid_lock);
 	if (dirty_space_ids > RECYCLE_THRESHOLD) {
@@ -1090,7 +1090,7 @@ void flush_tlb_all(void)
 #else
 void flush_tlb_all(void)
 {
-	inc_irq_stat(irq_tlb_count);
+	__inc_irq_stat(irq_tlb_count);
 	spin_lock(&sid_lock);
 	flush_tlb_all_local(NULL);
 	recycle_sids();
--
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From - Thu Nov 08 21:09:14 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix SMP races when updating PTE and TLB entries in entry.S
Date: Fri, 10 May 2013 19:21:38 -0400
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Currently, race conditions exist in the handling of TLB interruptions  
in entry.S.  In particular, dirty
bit updates can be lost if an accessed interruption occurs just after  
the dirty bit interruption on a
different cpu.  Lost dirty bit updates result in user pages not being  
flushed and general system
instability.  This change adds lock and unlock macros to synchronize  
all PTE and TLB updates
done in entry.S.  As a result, userspace stability is significantly  
improved.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---



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diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index f33201b..471f4e5 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -444,9 +445,41 @@
 	L2_ptep		\pgd,\pte,\index,\va,\fault
 	.endm
 
+	/* Acquire pa_dbit_lock lock. */
+	.macro		dbit_lock	spc,tmp,tmp1
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n	0,\spc,2f
+	load32		PA(pa_dbit_lock),\tmp
+1:	LDCW		0(\tmp),\tmp1
+	cmpib,COND(=)	0,\tmp1,1b
+	nop
+2:
+#endif
+	.endm
+
+	/* Release pa_dbit_lock lock without reloading lock address. */
+	.macro		dbit_unlock0	spc,tmp
+#ifdef CONFIG_SMP
+	or,COND(=)	%r0,\spc,%r0
+	stw             \spc,0(\tmp)
+#endif
+	.endm
+
+	/* Release pa_dbit_lock lock. */
+	.macro		dbit_unlock1	spc,tmp
+#ifdef CONFIG_SMP
+	load32		PA(pa_dbit_lock),\tmp
+	dbit_unlock0	\spc,\tmp
+#endif
+	.endm
+
 	/* Set the _PAGE_ACCESSED bit of the PTE.  Be clever and
 	 * don't needlessly dirty the cache line if it was already set */
-	.macro		update_ptep	ptep,pte,tmp,tmp1
+	.macro		update_ptep	spc,ptep,pte,tmp,tmp1
+#ifdef CONFIG_SMP
+	or,COND(=)	%r0,\spc,%r0
+	LDREG		0(\ptep),\pte
+#endif
 	ldi		_PAGE_ACCESSED,\tmp1
 	or		\tmp1,\pte,\tmp
 	and,COND(<>)	\tmp1,\pte,%r0
@@ -455,7 +488,11 @@
 
 	/* Set the dirty bit (and accessed bit).  No need to be
 	 * clever, this is only used from the dirty fault */
-	.macro		update_dirty	ptep,pte,tmp
+	.macro		update_dirty	spc,ptep,pte,tmp
+#ifdef CONFIG_SMP
+	or,COND(=)	%r0,\spc,%r0
+	LDREG		0(\ptep),\pte
+#endif
 	ldi		_PAGE_ACCESSED|_PAGE_DIRTY,\tmp
 	or		\tmp,\pte,\pte
 	STREG		\pte,0(\ptep)
@@ -1099,11 +1139,13 @@ dtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,dtlb_check_alias_20w
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 	
 	idtlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1123,11 +1165,13 @@ nadtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,nadtlb_check_alias_20w
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	idtlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1149,7 +1193,8 @@ dtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_11
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1160,6 +1205,7 @@ dtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1180,7 +1226,8 @@ nadtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_alias_11
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1192,6 +1239,7 @@ nadtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1212,13 +1260,15 @@ dtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_20
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 
 	idtlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1238,13 +1288,15 @@ nadtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_alias_20
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 	
         idtlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1345,11 +1397,13 @@ itlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 	
 	iitlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1367,11 +1421,13 @@ naitlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,naitlb_check_alias_20w
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	iitlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1393,7 +1449,8 @@ itlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1404,6 +1461,7 @@ itlb_miss_11:
 	iitlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1415,7 +1473,8 @@ naitlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,naitlb_check_alias_11
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1426,6 +1485,7 @@ naitlb_miss_11:
 	iitlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1447,13 +1507,15 @@ itlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0	
 
 	iitlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1465,13 +1527,15 @@ naitlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,naitlb_check_alias_20
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 
 	iitlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1495,29 +1559,13 @@ dbit_trap_20w:
 
 	L3_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20w
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20w:
-	LDCW		0(t0),t1
-	cmpib,COND(=)         0,t1,dbit_spin_20w
-	nop
-
-dbit_nolock_20w:
-#endif
-	update_dirty	ptp,pte,t1
+	dbit_lock	spc,t0,t1
+	update_dirty	spc,ptp,pte,t1
 
 	make_insert_tlb	spc,pte,prot
 		
 	idtlbt          pte,prot
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20w
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20w:
-#endif
+	dbit_unlock0	spc,t0
 
 	rfir
 	nop
@@ -1531,18 +1579,8 @@ dbit_trap_11:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_11
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_11:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_11
-	nop
-
-dbit_nolock_11:
-#endif
-	update_dirty	ptp,pte,t1
+	dbit_lock	spc,t0,t1
+	update_dirty	spc,ptp,pte,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1553,13 +1591,7 @@ dbit_nolock_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp            t1, %sr1     /* Restore sr1 */
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_11
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_11:
-#endif
+	dbit_unlock0	spc,t0
 
 	rfir
 	nop
@@ -1571,32 +1603,15 @@ dbit_trap_20:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_20
-	nop
-
-dbit_nolock_20:
-#endif
-	update_dirty	ptp,pte,t1
+	dbit_lock	spc,t0,t1
+	update_dirty	spc,ptp,pte,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t1
 	
         idtlbt          pte,prot
-
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20
-	ldi             1,t1
-	stw             t1,0(t0)

From - Thu Nov 08 21:09:14 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: make default cross compiler search more robust (v3)
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People/distros vary how they prefix the toolchain name for 64bit builds.
Rather than enforce one convention over another, add a for loop which
does a search for all the general prefixes.

For 64bit builds, we now search for (in order):
	hppa64-unknown-linux-gnu
	hppa64-linux-gnu
	hppa64-linux

For 32bit builds, we look for:
	hppa-unknown-linux-gnu
	hppa-linux-gnu
	hppa-linux
	hppa1.1-unknown-linux-gnu
	hppa1.1-linux-gnu
	hppa1.1-linux
	hppa2.0-unknown-linux-gnu
	hppa2.0-linux-gnu
	hppa2.0-linux

This patch was initiated by Mike Frysinger, with feedback from Jeroen
Roovers, John David Anglin and Helge Deller.

Signed-off-by: Helge Deller <deller@gmx.de>
CC: Mike Frysinger <vapier@gentoo.org>
CC: Jeroen Roovers <jer@gentoo.org>
CC: John David Anglin <dave.anglin@bell.net>


diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 2f967cc..4e5b7b5 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -23,24 +23,21 @@ NM		= sh $(srctree)/arch/parisc/nm
 CHECKFLAGS	+= -D__hppa__=1
 LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 
-MACHINE		:= $(shell uname -m)
-NATIVE		:= $(if $(filter parisc%,$(MACHINE)),1,0)
-
 ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
-WIDTH		:= 64
+CC_ARCHES	= hppa64
 else # 32-bit
-WIDTH		:=
+CC_ARCHES	= hppa hppa1.1 hppa2.0
 endif
 
-# attempt to help out folks who are cross-compiling
-ifeq ($(NATIVE),1)
-CROSS_COMPILE	:= hppa$(WIDTH)-linux-
-else
- ifeq ($(CROSS_COMPILE),)
- CROSS_COMPILE	:= hppa$(WIDTH)-linux-gnu-
- endif
+ifneq ($(SUBARCH),$(ARCH))
+	ifeq ($(CROSS_COMPILE),)
+		CC_SUFFIXES = linux linux-gnu unknown-linux-gnu
+		CROSS_COMPILE := $(call cc-cross-prefix, \
+			$(foreach a,$(CC_ARCHES), \
+			$(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
+	endif
 endif
 
 OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
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From - Thu Nov 08 21:09:14 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: make default cross compiler search more robust (v3)
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Cc: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
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	Jeroen Roovers <jer@gentoo.org>
To: Helge Deller <deller@gmx.de>
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On 11-May-13, at 3:04 PM, Helge Deller wrote:

> People/distros vary how they prefix the toolchain name for 64bit  
> builds.
> Rather than enforce one convention over another, add a for loop which
> does a search for all the general prefixes.
>
> For 64bit builds, we now search for (in order):
> 	hppa64-unknown-linux-gnu
> 	hppa64-linux-gnu
> 	hppa64-linux
>
> For 32bit builds, we look for:
> 	hppa-unknown-linux-gnu
> 	hppa-linux-gnu
> 	hppa-linux
> 	hppa1.1-unknown-linux-gnu
> 	hppa1.1-linux-gnu
> 	hppa1.1-linux
> 	hppa2.0-unknown-linux-gnu
> 	hppa2.0-linux-gnu
> 	hppa2.0-linux


As I tried to say before, I would search for hppa2.0 before hppa1.1 in  
case both are installed.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:09:14 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: make default cross compiler search more robust
 (v4)
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Cc: Mike Frysinger <vapier@gentoo.org>, Jeroen Roovers <jer@gentoo.org>
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	James Bottomley <James.Bottomley@HansenPartnership.com>,
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People/distros vary how they prefix the toolchain name for 64bit builds.
Rather than enforce one convention over another, add a for loop which
does a search for all the general prefixes.

For 64bit builds, we now search for (in order):
	hppa64-unknown-linux-gnu
	hppa64-linux-gnu
	hppa64-linux

For 32bit builds, we look for:
	hppa-unknown-linux-gnu
	hppa-linux-gnu
	hppa-linux
	hppa2.0-unknown-linux-gnu
	hppa2.0-linux-gnu
	hppa2.0-linux
	hppa1.1-unknown-linux-gnu
	hppa1.1-linux-gnu
	hppa1.1-linux

This patch was initiated by Mike Frysinger, with feedback from Jeroen
Roovers, John David Anglin and Helge Deller.

CC: Mike Frysinger <vapier@gentoo.org>
CC: Jeroen Roovers <jer@gentoo.org>
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 2f967cc..4e5b7b5 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -23,24 +23,21 @@ NM		= sh $(srctree)/arch/parisc/nm
 CHECKFLAGS	+= -D__hppa__=1
 LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 
-MACHINE		:= $(shell uname -m)
-NATIVE		:= $(if $(filter parisc%,$(MACHINE)),1,0)
-
 ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
-WIDTH		:= 64
+CC_ARCHES	= hppa64
 else # 32-bit
-WIDTH		:=
+CC_ARCHES	= hppa hppa2.0 hppa1.1
 endif
 
-# attempt to help out folks who are cross-compiling
-ifeq ($(NATIVE),1)
-CROSS_COMPILE	:= hppa$(WIDTH)-linux-
-else
- ifeq ($(CROSS_COMPILE),)
- CROSS_COMPILE	:= hppa$(WIDTH)-linux-gnu-
- endif
+ifneq ($(SUBARCH),$(UTS_MACHINE))
+	ifeq ($(CROSS_COMPILE),)
+		CC_SUFFIXES = linux linux-gnu unknown-linux-gnu
+		CROSS_COMPILE := $(call cc-cross-prefix, \
+			$(foreach a,$(CC_ARCHES), \
+			$(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
+	endif
 endif
 
 OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
--
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From - Thu Nov 08 21:09:14 2018
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From: Mike Frysinger <vapier@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: make default cross compiler search more robust (v4)
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On Sat, 11 May 2013 23:55:55 +0200
Helge Deller <deller@gmx.de> wrote:

> People/distros vary how they prefix the toolchain name for 64bit
> builds. Rather than enforce one convention over another, add a for
> loop which does a search for all the general prefixes.
> 
> For 64bit builds, we now search for (in order):
> 	hppa64-unknown-linux-gnu
> 	hppa64-linux-gnu
> 	hppa64-linux
> 
> For 32bit builds, we look for:
> 	hppa-unknown-linux-gnu
> 	hppa-linux-gnu
> 	hppa-linux
> 	hppa2.0-unknown-linux-gnu
> 	hppa2.0-linux-gnu
> 	hppa2.0-linux
> 	hppa1.1-unknown-linux-gnu
> 	hppa1.1-linux-gnu
> 	hppa1.1-linux
> 
> This patch was initiated by Mike Frysinger, with feedback from Jeroen
> Roovers, John David Anglin and Helge Deller.
> 
> CC: Mike Frysinger <vapier@gentoo.org>
> CC: Jeroen Roovers <jer@gentoo.org>
> Signed-off-by: John David Anglin <dave.anglin@bell.net>
> Signed-off-by: Helge Deller <deller@gmx.de>

Signed-off-by: Jeroen Roovers <jer@gentoo.org>


     jer
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On Sun, 12 May 2013, Geert Uytterhoeven wrote:
> However, the full list of errors isn't that unmanageable, so I'm following
> up with a digested list...

lib/mpi/generic_mpih-mul1.c:50:3: error: inconsistent operand constraints in an 'asm': 1 errors in 1 logs
lib/mpi/generic_mpih-mul2.c:49:3: error: inconsistent operand constraints in an 'asm': 1 errors in 1 logs
lib/mpi/generic_mpih-mul3.c:49:3: error: inconsistent operand constraints in an 'asm': 1 errors in 1 logs
lib/mpi/mpih-div.c:142:6: error: inconsistent operand constraints in an 'asm': 1 errors in 1 logs
lib/mpi/mpih-div.c:205:6: error: inconsistent operand constraints in an 'asm': 1 errors in 1 logs
	v3.10-rc1/parisc/parisc-allmodconfig


Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
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From - Thu Nov 08 21:09:14 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc updates for v3.10
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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Hi Linus,

please pull the parisc-for-3.10 branch of 

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-for-3.10

to get the latest bug and build fixes for the parisc architecture.

Thanks,
Helge

---------------------------------------

The second round of parisc updates for 3.10 includes build fixes and
enhancements to utilize irq stacks, fixes SMP races when updating PTE
and TLB entries by proper locking and makes the search for the correct
cross compiler more robust on Debian and Gentoo.

----------------------------------------------------------------
Helge Deller (2):
      parisc: implement irq stacks - part 2 (v2)
      parisc: make default cross compiler search more robust (v3)

John David Anglin (1):
      parisc: fix SMP races when updating PTE and TLB entries in entry.S

 arch/parisc/Kconfig                 |   2 +-
 arch/parisc/Makefile                |  21 +++--
 arch/parisc/include/asm/hardirq.h   |   9 +++
 arch/parisc/include/asm/processor.h |   3 +
 arch/parisc/kernel/entry.S          | 155 +++++++++++++++++++-----------------
 arch/parisc/kernel/irq.c            | 101 +++++++++++++++++++----
 arch/parisc/mm/init.c               |   4 +-
 7 files changed, 194 insertions(+), 101 deletions(-)
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> Helge Deller (2):
>       parisc: make default cross compiler search more robust (v3)

Needs CC:stable as without this building 3.9.x is not possible in some 
configurations.

> John David Anglin (1):
>       parisc: fix SMP races when updating PTE and TLB entries in entry.S

Possibly also this as it's a bugfix, but Dave is the one who may be judge how 
"clear" it is.

The same is probably true for these from the first round of updates:

John David Anglin (2):
      parisc: use long branch in fork_like macro
Mike Frysinger (1):
      parisc: fix NATIVE set up in build

While I _really_ appreciate the speedup that recently happened to the parisc 
development recently I would also appreciate if we can can finally get the 
bugfix parts of that into stable kernels so we have the non-development tree 
buildable and working without the need to backport all those stuff by hand.

Eike
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Subject: parisc boot crash on 3.10-rc1+git
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I saw parsic fixes in todays git and gave my RP3440 a test. It did not 
work - first a __schedule_bug, then a lot of warnings from 
drivers/pci/search.c (2 different places) and finally a kernel panic.

Main Menu: Enter command or menu > bo

Interact with IPL (Y, N, or Cancel)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.18 root@rp3440 K nov   28 08:41:24 EET 2012


Partition Start(MB) End(MB) Id Type


1               1      32   f0 Palo


2              33     224   83 ext2


3             225   31696   83 ext2


4           31697   34715   82 swap


PALO(F0) partition contains:


Information: No console specified on kernel command line. This is normal.

PALO will choose the console currently used by firmware (serial).Current command line:

2/vmlinux root=/dev/sdb3 console=ttyS0

 0: 2/vmlinux

 1: root=/dev/sdb3

 2: console=ttyS0


<#>    edit the numbered field

'b'    boot with this command line

'r'    restore command line

'l'    list dir

? 0 2

console=ttyS0 1

Current command line:

2/vmlinux root=/dev/sdb3 console=ttyS1

 0: 2/vmlinux

 1: root=/dev/sdb3

 2: console=ttyS1


<#>    edit the numbered field

'b'    boot with this command line

'r'    restore command line

'l'    list dir

? 0 b


Command line for kernel: 'root=/dev/sdb3 console=ttyS1 palo_kernel=2/vmlinux'

Selected kernel: /vmlinux from partition 2

ELF64 executable

Entry 00100000 first 00100000 n 4

Segment 0 load 00100000 size 5349376 mediaptr 0x1000

Segment 1 load 00657bd0 size 460536 mediaptr 0x51bbd0

Segment 2 load 006cc000 size 127840 mediaptr 0x58d000

Segment 3 load 006ec000 size 23400 mediaptr 0x5ad000

Branching to kernel entry point 0x00100000.  If this is the last

message you see, you may need to switch your console.  This is

a common symptom -- search the FAQ and mailing list at parisc-linux.org


Linux version 3.10.0-rc1-00087-g674825d (mroos@rp3440) (gcc version 4.6.3 (Gentoo 4.6.3 p1.9) ) #28 Tue May 14 14:13:02 EEST 2013
unwind_init: start = 0x40541000, end = 0x405753b0, entries = 13371
FP[0] enabled: Rev 1 Model 20
The 64-bit Kernel has started...
Default page size is 4KB.
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00008860 00000491 00000000 00000002 3e45475d0860fe3d 100000f0 00000008 000000b2 000000b2
vers  00000302
CPUID vers 20 rev 5 (0x00000285)
capabilities 0x35
model 9000/800/rp3410  
parisc_cache_init: Only equivalent aliasing supported!
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
 1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
Total Memory: 2046 MB
Built 2 zonelists in Zone order, mobility grouping on.  Total pages: 516615
Kernel command line: root=/dev/sdb3 console=ttyS1 palo_kernel=2/vmlinux
PID hash table entries: 4096 (order: 3, 32768 bytes)
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Sorting __ex_table...
Memory: 2053004k/2095104k available (3701k kernel code, 42100k reserved, 1472k data, 152k init)
virtual kernel memory layout:
   vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
   memory  : 0x0000000040000000 - 0x00000040bfe00000   (264190 MB)
     .init : 0x00000000406cc000 - 0x00000000406f2000   ( 152 kB)
     .data : 0x000000004049d4e8 - 0x000000004060d810   (1472 kB)
     .text : 0x0000000040100000 - 0x000000004049d4e8   (3701 kB)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=8
NR_IRQS:80
Console: colour dummy device 160x64
Calibrating delay loop... 1594.36 BogoMIPS (lpj=3188736)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 256
BUG: scheduling while atomic: swapper/0/0x0000000d
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 3.10.0-rc1-00087-g674825d #28
Backtrace:
 [<0000000040114c90>] show_stack+0x20/0x38
 [<000000004030066c>] dump_stack+0x3c/0x50
 [<000000004016b6a8>] __schedule_bug+0x70/0x98
 [<000000004010fde0>] __schedule+0x368/0x398
 [<000000004010ff40>] schedule+0x38/0x90
 [<0000000040110184>] schedule_preempt_disabled+0x2c/0x50
 [<000000004010bc30>] rest_init+0xe0/0x108
 [<00000000406ccd50>] start_kernel+0x550/0x578
 [<00000000404972bc>] packet_ioctl+0x22c/0x238
 [<000000004047a2a4>] ip_mroute_getsockopt+0x114/0x138
 [<0000000040469de8>] ip_mc_msfget+0x1c0/0x1e0
 [<000000004045428c>] raw_ioctl+0x104/0x120
 [<0000000040452860>] raw_probe_proto_opt+0x88/0x130

devtmpfs: initialized
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Storm Peak Slow DC- at 0xfffffffffe780000 [128] { 0, 0x0, 0x886, 0x00004 }
2. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
3. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
4. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
5. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
6. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
7. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
8. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
9. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
10. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
11. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
Enabling PDC_PAT chassis codes support v0.05
CPU(s): 1 x PA8800 (Mako) at 799.999900 MHz
Setting cache flush threshold to 2000000 (1 CPUs online)
SBA found Pluto 2.3 at 0xfffffffffed00000
Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
LBA 0:0: PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
pci_bus 0000:00: root bus resource [mem 0xffffffff80000000-0xffffffff8fffffff] (bus address [0x80000000-0x8fffffff])
pci_bus 0000:00: root bus resource [mem 0xffffff0004000000-0xffffff0fffffffff]
pci_bus 0000:00: root bus resource [bus 00-07]
Mercury version TR3.2 (0x32) found at 0xfffffffffed22000
LBA 0:1: PCI host bridge to bus 0000:20
pci_bus 0000:20: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
pci_bus 0000:20: root bus resource [mem 0xffffffff90000000-0xffffffff9fffffff] (bus address [0x90000000-0x9fffffff])
pci_bus 0000:20: root bus resource [mem 0xffffff1004000000-0xffffff1fffffffff]
pci_bus 0000:20: root bus resource [bus 20-27]
Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
LBA 0:2: PCI host bridge to bus 0000:40
pci_bus 0000:40: root bus resource [io  0x20000-0x2ffff] (bus address [0x0000-0xffff])
pci_bus 0000:40: root bus resource [mem 0xffffffffa0000000-0xffffffffafffffff] (bus address [0xa0000000-0xafffffff])
pci_bus 0000:40: root bus resource [mem 0xffffff2004000000-0xffffff2fffffffff]
pci_bus 0000:40: root bus resource [bus 40-47]
Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
LBA 0:3: PCI host bridge to bus 0000:60
pci_bus 0000:60: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0xffff])
pci_bus 0000:60: root bus resource [mem 0xffffffffb0000000-0xffffffffbfffffff] (bus address [0xb0000000-0xbfffffff])
pci_bus 0000:60: root bus resource [mem 0xffffff3004000000-0xffffff3fffffffff]
pci_bus 0000:60: root bus resource [bus 60-67]
Mercury version TR3.2 (0x32) found at 0xfffffffffed28000
LBA 0:4: PCI host bridge to bus 0000:80
pci_bus 0000:80: root bus resource [io  0x40000-0x4ffff] (bus address [0x0000-0xffff])
pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffcfffffff] (bus address [0xc0000000-0xcfffffff])
pci_bus 0000:80: root bus resource [mem 0xffffff4004000000-0xffffff4fffffffff]
pci_bus 0000:80: root bus resource [bus 80-87]
Mercury version TR3.2 (0x32) found at 0xfffffffffed2c000
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:110
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111001100001111 Tainted: G        W   
r00-03  000000ff0804f30f 000000007fc58ca0 0000000040327f0c 000000007fc58d40
r04-07  00000000406a9250 0000000000000000 0000000000000000 0000000000000000
r08-11  00000000000000c0 00000000405f98a0 00000000000000c0 000000007fc58aa8
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 000000007fd13470
r20-23  000000007fd13440 000000007fd13428 000000007fd13418 00000000418170e0
r24-27  0000000000000000 00000000000000c0 0000000000000000 00000000406a9250
r28-31  0000000000000100 000000007fc58d10 000000007fc58dd0 000000000000011c
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327eb8 0000000040327ebc
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d58
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 5555555555555555
 IAOQ[0]: pci_find_next_bus+0xa0/0xb0
 IAOQ[1]: pci_find_next_bus+0xa4/0xb0
 RP(r2): pci_find_bus+0x44/0xa0
Backtrace:
 [<0000000040327f0c>] pci_find_bus+0x44/0xa0
 [<000000004031f26c>] pci_create_root_bus+0x9c/0x448
 [<00000000406dee8c>] lba_driver_probe+0x484/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0
 [<00000000406ccec0>] do_basic_setup+0x148/0x1a8

---[ end trace 3621c5f12f0e44c3 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:110
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111001100001111 Tainted: G        W   
r00-03  000000ff0804f30f 000000007fc58ca0 0000000040327f0c 000000007fc58d40
r04-07  00000000406a9250 000000007fc88c00 000000007fc88c00 0000000000000000
r08-11  00000000000000c0 00000000405f98a0 00000000000000c0 000000007fc58aa8
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 000000000800000f
r20-23  0000000040607a50 000000007fd13428 000000007fd13418 00000000418170e0
r24-27  0000000000000000 00000000000000c0 000000007fc88c00 00000000406a9250
r28-31  0000000000000100 000000007fc58d10 000000007fc58dd0 000000000000012f
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327eb8 0000000040327ebc
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d58
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 5555555555555555
 IAOQ[0]: pci_find_next_bus+0xa0/0xb0
 IAOQ[1]: pci_find_next_bus+0xa4/0xb0
 RP(r2): pci_find_bus+0x44/0xa0
Backtrace:
 [<0000000040327f0c>] pci_find_bus+0x44/0xa0
 [<000000004031f26c>] pci_create_root_bus+0x9c/0x448
 [<00000000406dee8c>] lba_driver_probe+0x484/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0
 [<00000000406ccec0>] do_basic_setup+0x148/0x1a8

---[ end trace 3621c5f12f0e44c4 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:110
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111001100001111 Tainted: G        W   
r00-03  000000ff0804f30f 000000007fc58ca0 0000000040327f0c 000000007fc58d40
r04-07  00000000406a9250 000000007fc89400 000000007fc89400 0000000000000000
r08-11  00000000000000c0 00000000405f98a0 00000000000000c0 000000007fc58aa8
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 000000000800000f
r20-23  0000000040607a50 000000007fd13428 000000007fd13418 00000000418170e0
r24-27  0000000000000000 00000000000000c0 000000007fc89400 00000000406a9250
r28-31  0000000000000100 000000007fc58d10 000000007fc58dd0 0000000000000145
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327eb8 0000000040327ebc
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d58
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 5555555555555555
 IAOQ[0]: pci_find_next_bus+0xa0/0xb0
 IAOQ[1]: pci_find_next_bus+0xa4/0xb0
 RP(r2): pci_find_bus+0x44/0xa0
Backtrace:
 [<0000000040327f0c>] pci_find_bus+0x44/0xa0
 [<000000004031f26c>] pci_create_root_bus+0x9c/0x448
 [<00000000406dee8c>] lba_driver_probe+0x484/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0
 [<00000000406ccec0>] do_basic_setup+0x148/0x1a8

---[ end trace 3621c5f12f0e44c5 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:110
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111001100001111 Tainted: G        W   
r00-03  000000ff0804f30f 000000007fc58ca0 0000000040327f0c 000000007fc58d40
r04-07  00000000406a9250 000000007fc89c00 000000007fc89c00 0000000000000000
r08-11  00000000000000c0 00000000405f98a0 00000000000000c0 000000007fc58aa8
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 000000000800000f
r20-23  0000000040607a50 000000007fd13428 000000007fd13418 00000000418170e0
r24-27  0000000000000000 00000000000000c0 000000007fc89c00 00000000406a9250
r28-31  0000000000000100 000000007fc58d10 000000007fc58dd0 000000000000015c
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327eb8 0000000040327ebc
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d58
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 5555555555555555
 IAOQ[0]: pci_find_next_bus+0xa0/0xb0
 IAOQ[1]: pci_find_next_bus+0xa4/0xb0
 RP(r2): pci_find_bus+0x44/0xa0
Backtrace:
 [<0000000040327f0c>] pci_find_bus+0x44/0xa0
 [<000000004031f26c>] pci_create_root_bus+0x9c/0x448
 [<00000000406dee8c>] lba_driver_probe+0x484/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0
 [<00000000406ccec0>] do_basic_setup+0x148/0x1a8

---[ end trace 3621c5f12f0e44c6 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:110
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111001100001111 Tainted: G        W   
r00-03  000000ff0804f30f 000000007fc58ca0 0000000040327f0c 000000007fc58d40
r04-07  00000000406a9250 000000007fd12400 000000007fd12400 0000000000000000
r08-11  00000000000000c0 00000000405f98a0 00000000000000c0 000000007fc58aa8
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 000000000800000f
r20-23  0000000040607a50 000000007fd13428 000000007fd13418 00000000418170e0
r24-27  0000000000000000 00000000000000c0 000000007fd12400 00000000406a9250
r28-31  0000000000000100 000000007fc58d10 000000007fc58dd0 0000000000000172
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327eb8 0000000040327ebc
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d58
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 5555555555555555
 IAOQ[0]: pci_find_next_bus+0xa0/0xb0
 IAOQ[1]: pci_find_next_bus+0xa4/0xb0
 RP(r2): pci_find_bus+0x44/0xa0
Backtrace:
 [<0000000040327f0c>] pci_find_bus+0x44/0xa0
 [<000000004031f26c>] pci_create_root_bus+0x9c/0x448
 [<00000000406dee8c>] lba_driver_probe+0x484/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0
 [<00000000406ccec0>] do_basic_setup+0x148/0x1a8

---[ end trace 3621c5f12f0e44c7 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:110
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111001100001111 Tainted: G        W   
r00-03  000000ff0804f30f 000000007fc58ca0 0000000040327f0c 000000007fc58d40
r04-07  00000000406a9250 000000007fd12c00 000000007fd12c00 0000000000000000
r08-11  00000000000000c0 00000000405f98a0 00000000000000c0 000000007fc58aa8
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 000000000800000f
r20-23  0000000040607a50 000000007fd13428 000000007fd13418 00000000418170e0
r24-27  0000000000000000 00000000000000c0 000000007fd12c00 00000000406a9250
r28-31  0000000000000100 000000007fc58d10 000000007fc58dd0 0000000000000187
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327eb8 0000000040327ebc
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d58
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 5555555555555555
 IAOQ[0]: pci_find_next_bus+0xa0/0xb0
 IAOQ[1]: pci_find_next_bus+0xa4/0xb0
 RP(r2): pci_find_bus+0x44/0xa0
Backtrace:
 [<0000000040327f0c>] pci_find_bus+0x44/0xa0
 [<000000004031f26c>] pci_create_root_bus+0x9c/0x448
 [<00000000406dee8c>] lba_driver_probe+0x484/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0
 [<00000000406ccec0>] do_basic_setup+0x148/0x1a8

---[ end trace 3621c5f12f0e44c8 ]---
LBA 0:6: PCI host bridge to bus 0000:c0
pci_bus 0000:c0: root bus resource [io  0x50000-0x5ffff] (bus address [0x0000-0xffff])
pci_bus 0000:c0: root bus resource [mem 0xffffffffe0000000-0xffffffffefffffff] (bus address [0xe0000000-0xefffffff])
pci_bus 0000:c0: root bus resource [mem 0xffffff6004000000-0xffffff6fffffffff]
pci_bus 0000:c0: root bus resource [bus c0-c7]
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000000 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000040607a50
r20-23  0000000040607a50 fffffffff4050005 0000000000000040 0000000000000060
r24-27  0000000000000000 0000000000000000 000000007fd13400 00000000406a9250
r28-31  0000000000000100 000000007fc58d40 000000007fc58e10 00000000000001a1
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44c9 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000008 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000008 000000007fd13400 00000000406a9250
r28-31  0000000000000100 000000007fc58d40 000000007fc58e10 00000000000001b7
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44ca ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000010 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000010 000000007fd13400 00000000406a9250
r28-31  0000000000000100 000000007fc58d40 000000007fc58e10 00000000000001cc
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44cb ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000018 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000018 000000007fd13400 00000000406a9250
r28-31  0000000000000100 000000007fc58d40 000000007fc58e10 00000000000001e1
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44cc ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000020 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000020 000000007fd13400 00000000406a9250
r28-31  0000000000000100 000000007fc58d40 000000007fc58e10 00000000000001f6
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44cd ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000028 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000028 000000007fd13400 00000000406a9250
r28-31  0000000000000200 000000007fc58d40 000000007fc58e10 000000000000020a
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44ce ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000030 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000030 000000007fd13400 00000000406a9250
r28-31  0000000000000200 000000007fc58d40 000000007fc58e10 0000000000000220
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44cf ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000038 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000038 000000007fd13400 00000000406a9250
r28-31  0000000000000200 000000007fc58d40 000000007fc58e10 0000000000000235
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44d0 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000040 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000040 000000007fd13400 00000000406a9250
r28-31  0000000000000200 000000007fc58d40 000000007fc58e10 000000000000024a
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44d1 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000048 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000048 000000007fd13400 00000000406a9250
r28-31  0000000000000200 000000007fc58d40 000000007fc58e10 0000000000000260
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44d2 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000050 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000050 000000007fd13400 00000000406a9250
r28-31  0000000000000200 000000007fc58d40 000000007fc58e10 0000000000000275
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44d3 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000058 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000058 000000007fd13400 00000000406a9250
r28-31  0000000000000200 000000007fc58d40 000000007fc58e10 000000000000028a
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44d4 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000060 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000060 000000007fd13400 00000000406a9250
r28-31  0000000000000200 000000007fc58d40 000000007fc58e10 000000000000029f
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44d5 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000068 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000068 000000007fd13400 00000000406a9250
r28-31  0000000000000200 000000007fc58d40 000000007fc58e10 00000000000002b4
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44d6 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000070 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000070 000000007fd13400 00000000406a9250
r28-31  0000000000000200 000000007fc58d40 000000007fc58e10 00000000000002c9
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44d7 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000078 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000078 000000007fd13400 00000000406a9250
r28-31  0000000000000200 000000007fc58d40 000000007fc58e10 00000000000002de
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44d8 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000080 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000080 000000007fd13400 00000000406a9250
r28-31  0000000000000200 000000007fc58d40 000000007fc58e10 00000000000002f5
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44d9 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000088 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000088 000000007fd13400 00000000406a9250
r28-31  0000000000000300 000000007fc58d40 000000007fc58e10 0000000000000309
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44da ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000090 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000090 000000007fd13400 00000000406a9250
r28-31  0000000000000300 000000007fc58d40 000000007fc58e10 000000000000031f
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44db ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  0000000000000098 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 0000000000000098 000000007fd13400 00000000406a9250
r28-31  0000000000000300 000000007fc58d40 000000007fc58e10 0000000000000335
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44dc ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  00000000000000a0 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 00000000000000a0 000000007fd13400 00000000406a9250
r28-31  0000000000000300 000000007fc58d40 000000007fc58e10 000000000000034a
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44dd ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  00000000000000a8 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 00000000000000a8 000000007fd13400 00000000406a9250
r28-31  0000000000000300 000000007fc58d40 000000007fc58e10 0000000000000360
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44de ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  00000000000000b0 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 00000000000000b0 000000007fd13400 00000000406a9250
r28-31  0000000000000300 000000007fc58d40 000000007fc58e10 0000000000000374
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44df ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  00000000000000b8 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 00000000000000b8 000000007fd13400 00000000406a9250
r28-31  0000000000000300 000000007fc58d40 000000007fc58e10 000000000000038a
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44e0 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  00000000000000c0 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 00000000000000c0 000000007fd13400 00000000406a9250
r28-31  0000000000000300 000000007fc58d40 000000007fc58e10 00000000000003a0
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44e1 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  00000000000000c8 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 00000000000000c8 000000007fd13400 00000000406a9250
r28-31  0000000000000300 000000007fc58d40 000000007fc58e10 00000000000003b4
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44e2 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  00000000000000d0 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 00000000000000d0 000000007fd13400 00000000406a9250
r28-31  0000000000000300 000000007fc58d40 000000007fc58e10 00000000000003ca
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44e3 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  00000000000000d8 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 00000000000000d8 000000007fd13400 00000000406a9250
r28-31  0000000000000300 000000007fc58d40 000000007fc58e10 00000000000003e0
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44e4 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  00000000000000e0 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 00000000000000e0 000000007fd13400 00000000406a9250
r28-31  0000000000000300 000000007fc58d40 000000007fc58e10 00000000000003f5
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44e5 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  00000000000000e8 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 00000000000000e8 000000007fd13400 00000000406a9250
r28-31  0000000000000400 000000007fc58d40 000000007fc58e10 000000000000040c
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44e6 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  00000000000000f0 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 00000000000000f0 000000007fd13400 00000000406a9250
r28-31  0000000000000400 000000007fc58d40 000000007fc58e10 0000000000000421
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44e7 ]---
------------[ cut here ]------------
WARNING: at drivers/pci/search.c:137
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Tainted: G        W   
r00-03  000000000804000f 000000007fc58cc0 000000004010c3e4 000000007fc58d70
r04-07  00000000406a9250 000000007fd13400 000000007fd13400 000000007fd13400
r08-11  00000000000000f8 00000000405f98a0 00000000000000c0 00000000406c8250
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
r20-23  0000000040607a50 fffffffff4050005 000000007fc58e38 0000000000000004
r24-27  0000000000000000 00000000000000f8 000000007fd13400 00000000406a9250
r28-31  0000000000000400 000000007fc58d40 000000007fc58e10 0000000000000435
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040327e08 0000000040327e0c
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000ff16058d98
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 0000000000000001
 IAOQ[0]: pci_get_slot+0xe0/0xf0
 IAOQ[1]: pci_get_slot+0xe4/0xf0
 RP(r2): pci_scan_single_device+0x3c/0x120
Backtrace:
 [<000000004010c3e4>] pci_scan_single_device+0x3c/0x120
 [<000000004031ed58>] pci_scan_slot+0x68/0x158
 [<000000004031fd0c>] pci_scan_child_bus+0x54/0x130
 [<00000000406deec0>] lba_driver_probe+0x4b8/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0

---[ end trace 3621c5f12f0e44e8 ]---
------------[ cut here ]------------
kernel BUG at mm/vmalloc.c:1339!
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
task: 000000007fc54000 ti: 000000007fc58000 task.ti: 000000007fc58000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Tainted: G        W   
r00-03  000000ff0804ff0f 000000007fc58c10 00000000401cc1ac 000000007fc58c90
r04-07  00000000406a9250 0000000000000001 0000000000000001 000000007fc88138
r08-11  00000000000000d0 0000000040112c44 000000003f000000 0000000000008000
r12-15  00000000406b6250 00000000406b6250 00000000406f0768 0000000000000000
r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 000000000800000f
r20-23  0000000040112c44 00000000000000d0 000000003f000000 0000000000008000
r24-27  0000000000000001 0000000000000001 0000000000001000 00000000406a9250
r28-31  0000000000000400 000000007fc58c60 000000007fc58d50 000000000000044b
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401cb094 00000000401cb098
 IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000
 CPU:        0   CR30: 000000007fc58000 CR31: fffffff0f0e098e0
 ORIG_R28: 00000000000c6000
 IAOQ[0]: __get_vm_area_node.isra.22+0x1dc/0x1f8
 IAOQ[1]: __get_vm_area_node.isra.22+0x1e0/0x1f8
 RP(r2): get_vm_area+0x3c/0x50
Backtrace:
 [<00000000401cc1ac>] get_vm_area+0x3c/0x50
 [<0000000040112c44>] __ioremap+0x184/0x210
 [<00000000406dea5c>] lba_driver_probe+0x54/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48
 [<000000004037a018>] bus_add_driver+0x188/0x358
 [<000000004037b764>] driver_register+0x9c/0x1c8
 [<000000004011b2c8>] register_parisc_driver+0x58/0xb8
 [<00000000406defa4>] lba_init+0x24/0x38
 [<00000000406cf18c>] parisc_init+0x2e4/0x318
 [<0000000040111774>] do_one_initcall+0x54/0x1c0
 [<00000000406ccec0>] do_basic_setup+0x148/0x1a8

CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.10.0-rc1-00087-g674825d #28
Backtrace:
 [<0000000040114c90>] show_stack+0x20/0x38
 [<000000004030066c>] dump_stack+0x3c/0x50
 [<0000000040114b58>] die_if_kernel.part.3+0xe0/0x1f8
 [<0000000040114d20>] die_if_kernel+0x58/0xb0
 [<0000000040114e7c>] handle_break+0x104/0x128
 [<000000004011575c>] handle_interruption+0x49c/0x7b8
 [<00000000401cb094>] __get_vm_area_node.isra.22+0x1dc/0x1f8
 [<00000000401cc1ac>] get_vm_area+0x3c/0x50
 [<0000000040112c44>] __ioremap+0x184/0x210
 [<00000000406dea5c>] lba_driver_probe+0x54/0x578
 [<000000004011a634>] parisc_driver_probe+0x3c/0x68
 [<000000004037ad34>] really_probe+0x94/0x2d0
 [<000000004037b124>] driver_probe_device+0x34/0x48
 [<000000004037b22c>] __driver_attach+0xf4/0x100
 [<00000000403787f8>] bus_for_each_dev+0x90/0xe8
 [<000000004037a7bc>] driver_attach+0x34/0x48

Kernel panic - not syncing: Fatal exception in interrupt

-- 
Meelis Roos (mroos@linux.ee)

From - Thu Nov 08 21:09:15 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: parisc boot crash on 3.10-rc1+git
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Hi Meelis,
(I dropped linux-kernel mailing list from CC!)

On 05/14/2013 01:48 PM, Meelis Roos wrote:
> I saw parsic fixes in todays git and gave my RP3440 a test.

Great :-)

> It did not 
> work - first a __schedule_bug, 

I assume you have CONFIG_PREEMPT enabled?
We know it's currently broken.

> then a lot of warnings from 
> drivers/pci/search.c (2 different places) and finally a kernel panic.

See below.

> BUG: scheduling while atomic: swapper/0/0x0000000d
> Modules linked in:
> CPU: 0 PID: 0 Comm: swapper Not tainted 3.10.0-rc1-00087-g674825d #28
> Backtrace:
>  [<0000000040114c90>] show_stack+0x20/0x38
>  [<000000004030066c>] dump_stack+0x3c/0x50
>  [<000000004016b6a8>] __schedule_bug+0x70/0x98
>  [<000000004010fde0>] __schedule+0x368/0x398
>  [<000000004010ff40>] schedule+0x38/0x90
>  [<0000000040110184>] schedule_preempt_disabled+0x2c/0x50

^ yep.... CONFIG_PREEMPT I assume.


> WARNING: at drivers/pci/search.c:110

this line has: WARN_ON(in_interrupt());
I assume this is triggered by CONFIG_PREEMPT as well.

> ------------[ cut here ]------------
> kernel BUG at mm/vmalloc.c:1339!

-> again: BUG_ON(in_interrupt());


Please try again with CONFIG_PREEMPT disabled.

Helge
--
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc boot crash on 3.10-rc1+git
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> (I dropped linux-kernel mailing list from CC!)

Fine by me since linux-parisc seems to be active.

> > It did not 
> > work - first a __schedule_bug, 
> 
> I assume you have CONFIG_PREEMPT enabled?
> We know it's currently broken.

It is already disabled:

CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y

I just enabled the new irqstacks...

Full config:

#
# Automatically generated file; DO NOT EDIT.
# Linux/parisc 3.10.0-rc1 Kernel Configuration
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE="hppa64-linux-"
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_DEFAULT_HOSTNAME="rp3440"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_FHANDLE is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_GENERIC_HARDIRQS=y

#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
# CONFIG_ALWAYS_USE_PERSISTENT_CLOCK is not set

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_PREEMPT_RCU is not set
# CONFIG_RCU_STALL_COMMON is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=17
# CONFIG_CGROUPS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
CONFIG_UIDGID_CONVERTED=y
# CONFIG_UIDGID_STRICT_TYPE_CHECKS is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW=y
CONFIG_HOTPLUG=y
# CONFIG_EXPERT is not set
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_PCI_QUIRKS=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_CLONE_BACKWARDS=y

#
# GCOV-based kernel profiling
#
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_BROKEN_RODATA=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
# CONFIG_MLONGCALLS is not set
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
# CONFIG_SMP is not set
CONFIG_IRQSTACKS=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
# CONFIG_GSC is not set
CONFIG_PCI=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=m
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=m
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=m
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=m
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=m
CONFIG_IPV6_PRIVACY=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_GRE=m
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
CONFIG_NETLINK_MMAP=y
CONFIG_NETLINK_DIAG=m
CONFIG_BQL=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_FIB_RULES=y
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
# CONFIG_DMA_SHARED_BUFFER is not set

#
# Bus devices
#
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
# CONFIG_BLK_DEV is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_PHANTOM is not set
# CONFIG_INTEL_MID_PTI is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ATMEL_SSC is not set
# CONFIG_ENCLOSURE_SERVICES is not set
CONFIG_HP_ILO=m
# CONFIG_PCH_PHUB is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
CONFIG_EEPROM_93CX6=m
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#

#
# Altera FPGA firmware download module
#
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_SCSI_BNX2X_FCOE is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_CHELSIO_FCOE is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=m
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
# CONFIG_SATA_PMP is not set

#
# Controllers with non-SFF native interface
#
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
# CONFIG_ATA_PIIX is not set
# CONFIG_SATA_HIGHBANK is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
CONFIG_PATA_CMD64X=m
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CS5536 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_LEGACY is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_MII is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set

#
# CAIF transport drivers
#

#
# Distributed Switch Architecture drivers
#
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_MV88E6060 is not set
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
# CONFIG_NET_DSA_MV88E6131 is not set
# CONFIG_NET_DSA_MV88E6123_61_65 is not set
CONFIG_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_CADENCE is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
CONFIG_TIGON3=m
# CONFIG_BNX2X is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_CALXEDA_XGMAC is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_DNET is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EXAR is not set
# CONFIG_NET_VENDOR_HP is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_IP1000 is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_PACKET_ENGINE is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_SFC is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
# CONFIG_AT803X_PHY is not set
# CONFIG_AMD_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MDIO_BITBANG is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
CONFIG_DEVKMEM=y

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
# CONFIG_SERIAL_8250_DW is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MFD_HSU is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_PCH_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
# CONFIG_SPI is not set

#
# Qualcomm MSM SSBI bus support
#
# CONFIG_SSBI is not set
# CONFIG_HSI is not set

#
# PPS support
#
CONFIG_PPS=m
# CONFIG_PPS_DEBUG is not set
# CONFIG_NTP_PPS is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_GPIO is not set

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=m

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# CONFIG_PTP_1588_CLOCK_PCH is not set
CONFIG_GPIO_DEVRES=y
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_POWER_AVS is not set
CONFIG_HWMON=m
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
# CONFIG_EXYNOS_VIDEO is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_SOUND is not set

#
# HID support
#
# CONFIG_HID is not set
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB_ARCH_HAS_XHCI=y
# CONFIG_USB_SUPPORT is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
# CONFIG_RTC_DRV_DS2404 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y

#
# HID Sensor RTC drivers
#
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VIRT_DRIVERS is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_STAGING is not set

#
# Hardware Spinlock drivers
#
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_SUPPORT=y

#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set

#
# Rpmsg drivers
#
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set

#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT23=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
CONFIG_GENERIC_ACL=y

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
# CONFIG_NLS is not set

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
# CONFIG_DETECT_HUNG_TASK is not set
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_BOOT_PRINTK_DELAY is not set

#
# RCU Debugging
#
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_SAMPLES is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_DEBUG_RODATA is not set
CONFIG_DEBUG_STACKOVERFLOW=y

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=m
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_CMAC is not set
CONFIG_CRYPTO_HMAC=m
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=m
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=m
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_HW is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IO=y
# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
CONFIG_ZLIB_INFLATE=m
CONFIG_ZLIB_DEFLATE=m
# CONFIG_XZ_DEC is not set
# CONFIG_XZ_DEC_BCJ is not set
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_DQL=y
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
# CONFIG_AVERAGE is not set
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set

-- 
Meelis Roos (mroos@linux.ee)
--
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From - Thu Nov 08 21:09:15 2018
X-Mozilla-Status: 0011
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc boot crash on 3.10-rc1+git
Date: Wed, 15 May 2013 20:16:21 +0200
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Cc: linux-parisc@vger.kernel.org
To: Meelis Roos <mroos@linux.ee>
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This is a multi-part message in MIME format.
--------------030800080103050901040501
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

Hi Meelis,

On 05/15/2013 08:59 AM, Meelis Roos wrote:
>>> It did not work - first a __schedule_bug, 
>>
>> I assume you have CONFIG_PREEMPT enabled? We know it's currently broken.
> 
> It is already disabled:
> 
> CONFIG_PREEMPT_NONE=y
> # CONFIG_PREEMPT_VOLUNTARY is not set
> # CONFIG_PREEMPT is not set
> CONFIG_PREEMPT_COUNT=y
> 
> I just enabled the new irqstacks...

Ok, the good thing is, that I got today a rp5470 with which I could reproduce your problems.

The bad thing is:
Beside CONFIG_PREEMPT, CONFIG_DISCONTIGMEM is broken too.

I never noticed the DISCONTIGMEM bug, because all my other machines have flat/linear memory.

Attached is a .config with which I was able to successfully boot (tftpboot) into.
I'm right now looking into getting this machine installed via a new 3.10-rc1 kernel with the debian-5010-hppa-DVD-1.iso (and the initrd from it).

If I have something working I will make it available.

Helge

--------------030800080103050901040501
Content-Type: text/plain; charset=UTF-8;
 name=".config"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename=".config"

#
# Automatically generated file; DO NOT EDIT.
# Linux/parisc 3.10.0-rc1 Kernel Configuration
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
CONFIG_LOCALVERSION="-64bit"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_FHANDLE is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_GENERIC_HARDIRQS=y

#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_IRQ_DOMAIN=y
# CONFIG_IRQ_DOMAIN_DEBUG is not set
# CONFIG_ALWAYS_USE_PERSISTENT_CLOCK is not set

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_PREEMPT_RCU is not set
# CONFIG_RCU_STALL_COMMON is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=17
# CONFIG_CGROUPS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW=y
CONFIG_HOTPLUG=y
# CONFIG_EXPERT is not set
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_PCI_QUIRKS=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_CLONE_BACKWARDS=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_DEADLINE is not set
CONFIG_IOSCHED_CFQ=y
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_BROKEN_RODATA=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_MLONGCALLS=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
# CONFIG_SMP is not set
CONFIG_IRQSTACKS=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_NEED_BOUNCE_POOL=y
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
# CONFIG_EISA is not set
CONFIG_PCI=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
CONFIG_PCI_STUB=m
CONFIG_PCI_ATS=y
CONFIG_PCI_IOV=y
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=m
CONFIG_COREDUMP=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=m
CONFIG_XFRM_USER=m
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
# CONFIG_XFRM_STATISTICS is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_NET_IP_TUNNEL is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_IPVTI is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=m
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
# CONFIG_INET_UDP_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
# CONFIG_NETFILTER_ADVANCED is not set

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=y
CONFIG_NETFILTER_NETLINK_LOG=y
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_PROCFS=y
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_IRC=m
# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
# CONFIG_NF_NAT_AMANDA is not set
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_SIP=m
# CONFIG_NF_NAT_TFTP is not set
CONFIG_NETFILTER_XTABLES=m

#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m

#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_LOG=m
# CONFIG_NETFILTER_XT_TARGET_NETMAP is not set
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
# CONFIG_NETFILTER_XT_TARGET_REDIRECT is not set
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m

#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
# CONFIG_IP_SET is not set
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT_IPV4=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
# CONFIG_NF_NAT_PPTP is not set
# CONFIG_NF_NAT_H323 is not set
CONFIG_IP_NF_MANGLE=m
# CONFIG_IP_NF_RAW is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=m
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_MMAP is not set
# CONFIG_NETLINK_DIAG is not set
CONFIG_BQL=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
CONFIG_AF_RXRPC=y
# CONFIG_AF_RXRPC_DEBUG is not set
# CONFIG_RXKAD is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_RFKILL_REGULATOR is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
# CONFIG_DEVTMPFS_MOUNT is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
# CONFIG_DMA_SHARED_BUFFER is not set

#
# Bus devices
#
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_RSXX is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_PHANTOM is not set
# CONFIG_INTEL_MID_PTI is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ATMEL_SSC is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_PCH_PHUB is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#

#
# Altera FPGA firmware download module
#
CONFIG_HAVE_IDE=y
CONFIG_IDE=y

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_IDE_GD=m
CONFIG_IDE_GD_ATA=y
CONFIG_IDE_GD_ATAPI=y
CONFIG_BLK_DEV_IDECD=m
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_PLATFORM is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
# CONFIG_BLK_DEV_OFFBOARD is not set
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8172 is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
CONFIG_BLK_DEV_TC86C001=m
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=y
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
CONFIG_SCSI_SRP_ATTRS=y
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
CONFIG_ISCSI_BOOT_SYSFS=y
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_SCSI_BNX2X_FCOE is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_LE_ON_BE=y
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
CONFIG_SCSI_QLA_ISCSI=y
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_CHELSIO_FCOE is not set
CONFIG_SCSI_DH=y
# CONFIG_SCSI_DH_RDAC is not set
# CONFIG_SCSI_DH_HP_SW is not set
# CONFIG_SCSI_DH_EMC is not set
# CONFIG_SCSI_DH_ALUA is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
# CONFIG_ATA_PIIX is not set
# CONFIG_SATA_HIGHBANK is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CS5536 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
CONFIG_ATA_GENERIC=y
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
# CONFIG_DM_CRYPT is not set
# CONFIG_DM_SNAPSHOT is not set
# CONFIG_DM_THIN_PROVISIONING is not set
# CONFIG_DM_CACHE is not set
# CONFIG_DM_MIRROR is not set
CONFIG_DM_RAID=m
# CONFIG_DM_ZERO is not set
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
CONFIG_DM_UEVENT=y
# CONFIG_DM_FLAKEY is not set
# CONFIG_DM_VERITY is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
CONFIG_DUMMY=m
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
CONFIG_MII=m
# CONFIG_NET_TEAM is not set
CONFIG_MACVLAN=m
CONFIG_MACVTAP=m
# CONFIG_VXLAN is not set
CONFIG_NETCONSOLE=m
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_TUN=y
# CONFIG_VETH is not set
# CONFIG_ARCNET is not set

#
# CAIF transport drivers
#

#
# Distributed Switch Architecture drivers
#
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_MV88E6060 is not set
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
# CONFIG_NET_DSA_MV88E6131 is not set
# CONFIG_NET_DSA_MV88E6123_61_65 is not set
CONFIG_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_CADENCE is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_CALXEDA_XGMAC is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
# CONFIG_TULIP_MMIO is not set
# CONFIG_TULIP_NAPI is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EXAR is not set
CONFIG_NET_VENDOR_HP=y
CONFIG_HP100=m
CONFIG_NET_VENDOR_INTEL=y
# CONFIG_E100 is not set
# CONFIG_E1000 is not set
# CONFIG_E1000E is not set
# CONFIG_IGB is not set
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
# CONFIG_IXGBE is not set
CONFIG_NET_VENDOR_I825XX=y
CONFIG_LASI_82596=y
# CONFIG_IP1000 is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
CONFIG_NET_PACKET_ENGINE=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_QLOGIC=y
CONFIG_QLA3XXX=m
CONFIG_QLCNIC=m
CONFIG_QLCNIC_SRIOV=y
CONFIG_QLGE=m
# CONFIG_NETXEN_NIC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_SFC is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_PHYLIB=y

#
# MII PHY device drivers
#
# CONFIG_AT803X_PHY is not set
# CONFIG_AMD_PHY is not set
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
# CONFIG_BCM87XX_PHY is not set
CONFIG_ICPLUS_PHY=m
CONFIG_REALTEK_PHY=m
CONFIG_NATIONAL_PHY=m
CONFIG_STE10XP=m
CONFIG_LSI_ET1011C_PHY=m
# CONFIG_MICREL_PHY is not set
# CONFIG_FIXED_PHY is not set
CONFIG_MDIO_BITBANG=m
# CONFIG_PPP is not set
CONFIG_SLIP=m
CONFIG_SLHC=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLIP_SMART=y
CONFIG_SLIP_MODE_SLIP6=y

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=m
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_HIL_OLD is not set
# CONFIG_KEYBOARD_HIL is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_UINPUT is not set
CONFIG_HP_SDC_RTC=m
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_IMS_PCU is not set
# CONFIG_INPUT_CMA3000 is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=m
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=m
CONFIG_HIL_MLC=m
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_NOZOMI=m
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVKMEM is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set
# CONFIG_SERIAL_8250_DW is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MFD_HSU is not set
CONFIG_SERIAL_MUX=y
CONFIG_SERIAL_MUX_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_PCH_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=m
CONFIG_HW_RANDOM_TIMERIOMEM=m
CONFIG_HW_RANDOM_TPM=m
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
CONFIG_TCG_TPM=m
CONFIG_TCG_ATMEL=m
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
# CONFIG_SPI is not set

#
# Qualcomm MSM SSBI bus support
#
# CONFIG_SSBI is not set
# CONFIG_HSI is not set

#
# PPS support
#
CONFIG_PPS=m
# CONFIG_PPS_DEBUG is not set
# CONFIG_NTP_PPS is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_GPIO is not set

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=m

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# CONFIG_PTP_1588_CLOCK_PCH is not set
CONFIG_GPIO_DEVRES=y
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_POWER_AVS is not set
CONFIG_HWMON=m
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
CONFIG_SENSORS_I5K_AMB=m
# CONFIG_SENSORS_F71805F is not set
CONFIG_SENSORS_F71882FG=m
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_PC87360 is not set
CONFIG_SENSORS_PC87427=m
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_SCH5627 is not set
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_VIA686A is not set
CONFIG_SENSORS_VT1211=m
CONFIG_SENSORS_VT8231=m
# CONFIG_SENSORS_W83627HF is not set
CONFIG_SENSORS_W83627EHF=m
# CONFIG_THERMAL is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set

#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
# CONFIG_ALIM7101_WDT is not set
# CONFIG_I6300ESB_WDT is not set

#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
# CONFIG_SSB_B43_PCI_BRIDGE is not set
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=m
# CONFIG_MFD_CROS_EC is not set
CONFIG_HTC_PASIC3=m
# CONFIG_LPC_ICH is not set
CONFIG_LPC_SCH=m
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
CONFIG_MFD_SM501=m
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
# CONFIG_REGULATOR_DUMMY is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=m
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
CONFIG_REGULATOR_USERSPACE_CONSUMER=m
CONFIG_MEDIA_SUPPORT=m

#
# Multimedia core support
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
# CONFIG_MEDIA_RC_SUPPORT is not set
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set

#
# Media drivers
#
# CONFIG_MEDIA_USB_SUPPORT is not set
# CONFIG_MEDIA_PCI_SUPPORT is not set

#
# Supported MMC/SDIO adapters
#
# CONFIG_CYPRESS_FIRMWARE is not set

#
# Media ancillary drivers (tuners, sensors, i2c, frontends)
#

#
# Customise DVB Frontends
#

#
# Tools to develop new frontends
#
# CONFIG_DVB_DUMMY_FE is not set

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=m
CONFIG_FB_SYS_COPYAREA=m
CONFIG_FB_SYS_IMAGEBLIT=m
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=m
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_STI=y
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_TMIO is not set
CONFIG_FB_SM501=m
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_GOLDFISH is not set
# CONFIG_FB_VIRTUAL is not set
CONFIG_FB_METRONOME=m
CONFIG_FB_MB862XX=m
CONFIG_FB_MB862XX_PCI_GDC=y
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
# CONFIG_EXYNOS_VIDEO is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_GENERIC is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_LOGO_PARISC_CLUT224=y
# CONFIG_SOUND is not set

#
# HID support
#
CONFIG_HID=m
CONFIG_HIDRAW=y
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=m

#
# Special HID drivers
#
CONFIG_HID_A4TECH=m
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=m
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=m
CONFIG_HID_CHERRY=m
CONFIG_HID_CHICONY=m
CONFIG_HID_CYPRESS=m
CONFIG_HID_DRAGONRISE=m
CONFIG_DRAGONRISE_FF=y
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
CONFIG_HID_EZKEY=m
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_KEYTOUCH is not set
CONFIG_HID_KYE=m
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
CONFIG_HID_GYRATION=m
# CONFIG_HID_ICADE is not set
CONFIG_HID_TWINHAN=m
CONFIG_HID_KENSINGTON=m
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LENOVO_TPKBD is not set
CONFIG_HID_LOGITECH=m
# CONFIG_HID_LOGITECH_DJ is not set
CONFIG_LOGITECH_FF=y
CONFIG_LOGIRUMBLEPAD2_FF=y
# CONFIG_LOGIG940_FF is not set
CONFIG_LOGIWHEELS_FF=y
# CONFIG_HID_MAGICMOUSE is not set
CONFIG_HID_MICROSOFT=m
CONFIG_HID_MONTEREY=m
# CONFIG_HID_MULTITOUCH is not set
CONFIG_HID_NTRIG=m
# CONFIG_HID_ORTEK is not set
CONFIG_HID_PANTHERLORD=m
CONFIG_PANTHERLORD_FF=y
CONFIG_HID_PETALYNX=m
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_PS3REMOTE is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
CONFIG_HID_SAMSUNG=m
CONFIG_HID_SONY=m
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEELSERIES is not set
CONFIG_HID_SUNPLUS=m
CONFIG_HID_GREENASIA=m
CONFIG_GREENASIA_FF=y
CONFIG_HID_SMARTJOYPLUS=m
CONFIG_SMARTJOYPLUS_FF=y
# CONFIG_HID_TIVO is not set
CONFIG_HID_TOPSEED=m
# CONFIG_HID_THINGM is not set
CONFIG_HID_THRUSTMASTER=m
CONFIG_THRUSTMASTER_FF=y
# CONFIG_HID_WACOM is not set
# CONFIG_HID_WIIMOTE is not set
CONFIG_HID_ZEROPLUS=m
CONFIG_ZEROPLUS_FF=y
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set

#
# USB HID support
#
CONFIG_USB_HID=m
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB_ARCH_HAS_XHCI=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=m
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=m
CONFIG_USB_DEBUG=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
CONFIG_USB_DYNAMIC_MINORS=y
CONFIG_USB_MON=m
CONFIG_USB_WUSB_CBAF=m
# CONFIG_USB_WUSB_CBAF_DEBUG is not set

#
# USB Host Controller Drivers
#
CONFIG_USB_C67X00_HCD=m
CONFIG_USB_XHCI_HCD=m
# CONFIG_USB_XHCI_HCD_DEBUGGING is not set
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=m
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
CONFIG_USB_ISP116X_HCD=m
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_HCD_SSB is not set
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
CONFIG_USB_R8A66597_HCD=m
# CONFIG_USB_HCD_SSB is not set

#
# USB Device Class drivers
#
CONFIG_USB_ACM=m
CONFIG_USB_PRINTER=m
CONFIG_USB_WDM=m
CONFIG_USB_TMC=m

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
# CONFIG_USB_STORAGE is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_CHIPIDEA is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_PHY is not set
# CONFIG_USB_GADGET is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# LED drivers
#
# CONFIG_LEDS_REGULATOR is not set
# CONFIG_LEDS_OT200 is not set

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_ONESHOT=y
CONFIG_LEDS_TRIGGER_IDE_DISK=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
# CONFIG_LEDS_TRIGGER_CPU is not set
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m

#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
# CONFIG_LEDS_TRIGGER_CAMERA is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_DS1286=m
CONFIG_RTC_DRV_DS1511=m
CONFIG_RTC_DRV_DS1553=m
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_STK17TA8=m
CONFIG_RTC_DRV_M48T86=m
CONFIG_RTC_DRV_M48T35=m
CONFIG_RTC_DRV_M48T59=m
# CONFIG_RTC_DRV_MSM6242 is not set
CONFIG_RTC_DRV_BQ4802=m
# CONFIG_RTC_DRV_RP5C01 is not set
CONFIG_RTC_DRV_V3020=m
# CONFIG_RTC_DRV_DS2404 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
CONFIG_UIO=y
# CONFIG_UIO_CIF is not set
# CONFIG_UIO_PDRV is not set
CONFIG_UIO_PDRV_GENIRQ=m
# CONFIG_UIO_DMEM_GENIRQ is not set
CONFIG_UIO_AEC=m
CONFIG_UIO_SERCOS3=m
CONFIG_UIO_PCI_GENERIC=m
# CONFIG_UIO_NETX is not set
# CONFIG_VIRT_DRIVERS is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
CONFIG_STAGING=y
# CONFIG_ET131X is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_ECHO is not set
# CONFIG_COMEDI is not set
# CONFIG_ASUS_OLED is not set
# CONFIG_RTS5139 is not set
# CONFIG_TRANZPORT is not set
# CONFIG_IDE_PHISON is not set
# CONFIG_DX_SEP is not set
# CONFIG_ZSMALLOC is not set
# CONFIG_FB_SM7XX is not set
# CONFIG_CRYSTALHD is not set
# CONFIG_FB_XGI is not set
# CONFIG_USB_ENESTORAGE is not set
# CONFIG_BCM_WIMAX is not set
# CONFIG_FT1000 is not set

#
# Speakup console speech
#
# CONFIG_SPEAKUP is not set
# CONFIG_STAGING_MEDIA is not set

#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_USB_WPAN_HCD is not set
# CONFIG_WIMAX_GDM72XX is not set
# CONFIG_NET_VENDOR_SILICOM is not set
# CONFIG_CED1401 is not set
# CONFIG_DGRP is not set
# CONFIG_USB_DWC2 is not set

#
# Hardware Spinlock drivers
#
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_SUPPORT=y

#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set

#
# Rpmsg drivers
#
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set

#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
CONFIG_EXT3_DEFAULTS_TO_ORDERED=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=m
# CONFIG_XFS_QUOTA is not set
# CONFIG_XFS_POSIX_ACL is not set
# CONFIG_XFS_RT is not set
# CONFIG_XFS_WARN is not set
# CONFIG_XFS_DEBUG is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
CONFIG_BTRFS_FS=m
# CONFIG_BTRFS_FS_POSIX_ACL is not set
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=m
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=y
CONFIG_CUSE=y
CONFIG_GENERIC_ACL=y

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_ZISOFS is not set
CONFIG_UDF_FS=y

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=y
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_PSTORE is not set
CONFIG_SYSV_FS=y
# CONFIG_UFS_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_NLS=m
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set

#
# Kernel hacking
#
CONFIG_PRINTK_TIME=y
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_LOCKUP_DETECTOR=y
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=1
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=1
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_BOOT_PRINTK_DELAY is not set

#
# RCU Debugging
#
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_LKDTM is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_DYNAMIC_DEBUG is not set
CONFIG_ATOMIC64_SELFTEST=y
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_SAMPLES is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_DEBUG_RODATA is not set
CONFIG_DEBUG_STACKOVERFLOW=y

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_TRUSTED_KEYS is not set
# CONFIG_ENCRYPTED_KEYS is not set
CONFIG_KEYS_DEBUG_PROC_KEYS=y
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
CONFIG_SECURITYFS=y
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_ASYNC_PQ=m
CONFIG_ASYNC_RAID6_RECOV=m
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
CONFIG_CRYPTO_PCBC=m
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_CMAC is not set
CONFIG_CRYPTO_HMAC=m
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_GHASH is not set
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=m
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_HW is not set
# CONFIG_ASYMMETRIC_KEY_TYPE is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_RAID6_PQ=m
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC_ITU_T=y
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=y
# CONFIG_CRC8 is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=m
CONFIG_LZO_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_DQL=y
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
# CONFIG_AVERAGE is not set
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set

--------------030800080103050901040501--
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Am Mittwoch 15 Mai 2013, 20:16:21 schrieb Helge Deller:
> Hi Meelis,
> 
> On 05/15/2013 08:59 AM, Meelis Roos wrote:
> >>> It did not work - first a __schedule_bug,
> >> 
> >> I assume you have CONFIG_PREEMPT enabled? We know it's currently broken.
> > 
> > It is already disabled:
> > 
> > CONFIG_PREEMPT_NONE=y
> > # CONFIG_PREEMPT_VOLUNTARY is not set
> > # CONFIG_PREEMPT is not set
> > CONFIG_PREEMPT_COUNT=y
> > 
> > I just enabled the new irqstacks...
> 
> Ok, the good thing is, that I got today a rp5470 with which I could
> reproduce your problems.
> 
> The bad thing is:
> Beside CONFIG_PREEMPT, CONFIG_DISCONTIGMEM is broken too.

My C8000 runs 3.7.3 happily, so it must have happened after that.

Eike
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Cc: Meelis Roos <mroos@linux.ee>, linux-parisc@vger.kernel.org
To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 15-May-13, at 3:34 PM, Rolf Eike Beer wrote:

> Am Mittwoch 15 Mai 2013, 20:16:21 schrieb Helge Deller:
>> Hi Meelis,
>>
>> On 05/15/2013 08:59 AM, Meelis Roos wrote:
>>>>> It did not work - first a __schedule_bug,
>>>>
>>>> I assume you have CONFIG_PREEMPT enabled? We know it's currently  
>>>> broken.
>>>
>>> It is already disabled:
>>>
>>> CONFIG_PREEMPT_NONE=y
>>> # CONFIG_PREEMPT_VOLUNTARY is not set
>>> # CONFIG_PREEMPT is not set
>>> CONFIG_PREEMPT_COUNT=y
>>>
>>> I just enabled the new irqstacks...
>>
>> Ok, the good thing is, that I got today a rp5470 with which I could
>> reproduce your problems.
>>
>> The bad thing is:
>> Beside CONFIG_PREEMPT, CONFIG_DISCONTIGMEM is broken too.
>
> My C8000 runs 3.7.3 happily, so it must have happened after that.


I suspect that you actually have to have discontiguous memory to  
trigger the bug.

Dave
--
John David Anglin	dave.anglin@bell.net



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> > Ok, the good thing is, that I got today a rp5470 with which I could
> > reproduce your problems.
> > 
> > The bad thing is:
> > Beside CONFIG_PREEMPT, CONFIG_DISCONTIGMEM is broken too.
> 
> My C8000 runs 3.7.3 happily, so it must have happened after that.

My RP3440 runs 3.9.0 fine, with mostly the same config as I sent (modulo 
the new questions).

Debian was becoming too hard so I switched to Gentoo on parisc and so 
far it has been fine. But to bootstrap Gentoo, I had to use old Debian 
so no ext4, just ext3.

-- 
Meelis Roos (mroos@linux.ee)
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Am Mittwoch 15 Mai 2013, 18:32:34 schrieb John David Anglin:
> On 15-May-13, at 3:34 PM, Rolf Eike Beer wrote:
> > Am Mittwoch 15 Mai 2013, 20:16:21 schrieb Helge Deller:
> >> Hi Meelis,
> >> 
> >> On 05/15/2013 08:59 AM, Meelis Roos wrote:
> >>>>> It did not work - first a __schedule_bug,
> >>>> 
> >>>> I assume you have CONFIG_PREEMPT enabled? We know it's currently
> >>>> broken.
> >>> 
> >>> It is already disabled:
> >>> 
> >>> CONFIG_PREEMPT_NONE=y
> >>> # CONFIG_PREEMPT_VOLUNTARY is not set
> >>> # CONFIG_PREEMPT is not set
> >>> CONFIG_PREEMPT_COUNT=y
> >>> 
> >>> I just enabled the new irqstacks...
> >> 
> >> Ok, the good thing is, that I got today a rp5470 with which I could
> >> reproduce your problems.
> >> 
> >> The bad thing is:
> >> Beside CONFIG_PREEMPT, CONFIG_DISCONTIGMEM is broken too.
> > 
> > My C8000 runs 3.7.3 happily, so it must have happened after that.
> 
> I suspect that you actually have to have discontiguous memory to
> trigger the bug.

The C8000 has discontigmem. I can easily see if it is working or not: if I 
only have 1GB of RAM available it doesn't work. But I have all 2GB of RAM 
available.

Eike
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On 16-May-13, at 2:35 AM, Meelis Roos wrote:

>>> Ok, the good thing is, that I got today a rp5470 with which I could
>>> reproduce your problems.
>>>
>>> The bad thing is:
>>> Beside CONFIG_PREEMPT, CONFIG_DISCONTIGMEM is broken too.
>>
>> My C8000 runs 3.7.3 happily, so it must have happened after that.
>
> My RP3440 runs 3.9.0 fine, with mostly the same config as I sent  
> (modulo
> the new questions).


3.9.0 plus all parisc changes for 3.10 runs ok on my rp3440.  Do you  
have
the three parisc patches merged after 3.10-rc1?  There's only about  
one day's
worth of commits between what I have and 3.10-rc1.

I have CONFIG_DISCONTIGMEM set.

Memory Ranges:
  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
  1) Start 0x0000000100000000 End 0x00000001ffdfffff Size   4094 MB
  2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
Total Memory: 8190 MB

--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:09:16 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: Re: parisc boot crash on 3.10-rc1+git
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To: John David Anglin <dave.anglin@bell.net>
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> > > > Ok, the good thing is, that I got today a rp5470 with which I could
> > > > reproduce your problems.
> > > > 
> > > > The bad thing is:
> > > > Beside CONFIG_PREEMPT, CONFIG_DISCONTIGMEM is broken too.
> > > 
> > > My C8000 runs 3.7.3 happily, so it must have happened after that.
> > 
> > My RP3440 runs 3.9.0 fine, with mostly the same config as I sent (modulo
> > the new questions).
> 
> 
> 3.9.0 plus all parisc changes for 3.10 runs ok on my rp3440.  Do you have
> the three parisc patches merged after 3.10-rc1?  There's only about one day's
> worth of commits between what I have and 3.10-rc1.
> 
> I have CONFIG_DISCONTIGMEM set.
> 
> Memory Ranges:
> 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
> 1) Start 0x0000000100000000 End 0x00000001ffdfffff Size   4094 MB
> 2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
> Total Memory: 8190 MB

I took 3.10-rc1+git with the batch of hppa changes: 
v3.10-rc1-87-g674825d

[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB

.config was already on the list, there are

CONFIG_IRQSTACKS=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y

CONFIG_DISCONTIGMEM_MANUAL=y
CONFIG_DISCONTIGMEM=y


-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:09:16 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: only re-enable interrupts if we need to schedule or
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please include to stable kernel v3.9 series.
upstream commit c207a76bf155cb5cf24cf849c08f6555e9180594

From: John David Anglin <dave.anglin@bell.net>

Helge and I have found that we have a kernel stack overflow problem
which causes a variety of random failures.  Currently, we re-enable
interrupts when returning from an external interrupt incase we need to
schedule or delivery signals.  As a result, a potentially unlimited
number of interrupts can occur while we are running on the kernel stack.
It is very limited in space (currently, 16k).  This change defers
enabling interrupts until we have actually decided to schedule or
delivery signals.  This only occurs when we about to return to
userspace.  This limits the number of interrupts on the kernel stack to
one.  In other cases, interrupts remain disabled until the final return
from interrupt (rfi).

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 36f4f1d..3f3326d 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -833,11 +833,6 @@ ENTRY(syscall_exit_rfi)
 	STREG   %r19,PT_SR7(%r16)
 
 intr_return:
-	/* NOTE: Need to enable interrupts incase we schedule. */
-	ssm     PSW_SM_I, %r0
-
-intr_check_resched:
-
 	/* check for reschedule */
 	mfctl   %cr30,%r1
 	LDREG   TI_FLAGS(%r1),%r19	/* sched.h: TIF_NEED_RESCHED */
@@ -864,6 +859,11 @@ intr_check_sig:
 	LDREG	PT_IASQ1(%r16), %r20
 	cmpib,COND(=),n 0,%r20,intr_restore /* backward */
 
+	/* NOTE: We need to enable interrupts if we have to deliver
+	 * signals. We used to do this earlier but it caused kernel
+	 * stack overflows. */
+	ssm     PSW_SM_I, %r0
+
 	copy	%r0, %r25			/* long in_syscall = 0 */
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
@@ -915,6 +915,10 @@ intr_do_resched:
 	cmpib,COND(=)	0, %r20, intr_do_preempt
 	nop
 
+	/* NOTE: We need to enable interrupts if we schedule.  We used
+	 * to do this earlier but it caused kernel stack overflows. */
+	ssm     PSW_SM_I, %r0
+
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
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From - Thu Nov 08 21:09:16 2018
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Subject: [PATCH] parisc: fix SMP races when updating PTE and TLB entries in
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please add to stable kernel v3.9
upstream commit f0a18819e261afc5fdbd8c5c6f9943123c5461ba

From: John David Anglin <dave.anglin@bell.net>

Currently, race conditions exist in the handling of TLB interruptions in
entry.S.  In particular, dirty bit updates can be lost if an accessed
interruption occurs just after the dirty bit interruption on a different
cpu.  Lost dirty bit updates result in user pages not being flushed and
general system instability.  This change adds lock and unlock macros to
synchronize all PTE and TLB updates done in entry.S.  As a result,
userspace stability is significantly improved.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 4bb96ad..ae27cb6 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -452,9 +452,41 @@
 	L2_ptep		\pgd,\pte,\index,\va,\fault
 	.endm
 
+	/* Acquire pa_dbit_lock lock. */
+	.macro		dbit_lock	spc,tmp,tmp1
+#ifdef CONFIG_SMP
+	cmpib,COND(=),n	0,\spc,2f
+	load32		PA(pa_dbit_lock),\tmp
+1:	LDCW		0(\tmp),\tmp1
+	cmpib,COND(=)	0,\tmp1,1b
+	nop
+2:
+#endif
+	.endm
+
+	/* Release pa_dbit_lock lock without reloading lock address. */
+	.macro		dbit_unlock0	spc,tmp
+#ifdef CONFIG_SMP
+	or,COND(=)	%r0,\spc,%r0
+	stw             \spc,0(\tmp)
+#endif
+	.endm
+
+	/* Release pa_dbit_lock lock. */
+	.macro		dbit_unlock1	spc,tmp
+#ifdef CONFIG_SMP
+	load32		PA(pa_dbit_lock),\tmp
+	dbit_unlock0	\spc,\tmp
+#endif
+	.endm
+
 	/* Set the _PAGE_ACCESSED bit of the PTE.  Be clever and
 	 * don't needlessly dirty the cache line if it was already set */
-	.macro		update_ptep	ptep,pte,tmp,tmp1
+	.macro		update_ptep	spc,ptep,pte,tmp,tmp1
+#ifdef CONFIG_SMP
+	or,COND(=)	%r0,\spc,%r0
+	LDREG		0(\ptep),\pte
+#endif
 	ldi		_PAGE_ACCESSED,\tmp1
 	or		\tmp1,\pte,\tmp
 	and,COND(<>)	\tmp1,\pte,%r0
@@ -463,7 +495,11 @@
 
 	/* Set the dirty bit (and accessed bit).  No need to be
 	 * clever, this is only used from the dirty fault */
-	.macro		update_dirty	ptep,pte,tmp
+	.macro		update_dirty	spc,ptep,pte,tmp
+#ifdef CONFIG_SMP
+	or,COND(=)	%r0,\spc,%r0
+	LDREG		0(\ptep),\pte
+#endif
 	ldi		_PAGE_ACCESSED|_PAGE_DIRTY,\tmp
 	or		\tmp,\pte,\pte
 	STREG		\pte,0(\ptep)
@@ -1111,11 +1147,13 @@ dtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,dtlb_check_alias_20w
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 	
 	idtlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1135,11 +1173,13 @@ nadtlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,nadtlb_check_alias_20w
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	idtlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1161,7 +1201,8 @@ dtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_11
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1172,6 +1213,7 @@ dtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1192,7 +1234,8 @@ nadtlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_alias_11
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1204,6 +1247,7 @@ nadtlb_miss_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1224,13 +1268,15 @@ dtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_20
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 
 	idtlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1250,13 +1296,15 @@ nadtlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_alias_20
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 	
         idtlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1357,11 +1405,13 @@ itlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 	
 	iitlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1379,11 +1429,13 @@ naitlb_miss_20w:
 
 	L3_ptep		ptp,pte,t0,va,naitlb_check_alias_20w
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	iitlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1405,7 +1457,8 @@ itlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1416,6 +1469,7 @@ itlb_miss_11:
 	iitlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1427,7 +1481,8 @@ naitlb_miss_11:
 
 	L2_ptep		ptp,pte,t0,va,naitlb_check_alias_11
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1438,6 +1493,7 @@ naitlb_miss_11:
 	iitlbp		prot,(%sr1,va)
 
 	mtsp		t0, %sr1	/* Restore sr1 */
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1459,13 +1515,15 @@ itlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0	
 
 	iitlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1477,13 +1535,15 @@ naitlb_miss_20:
 
 	L2_ptep		ptp,pte,t0,va,naitlb_check_alias_20
 
-	update_ptep	ptp,pte,t0,t1
+	dbit_lock	spc,t0,t1
+	update_ptep	spc,ptp,pte,t0,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t0
 
 	iitlbt          pte,prot
+	dbit_unlock1	spc,t0
 
 	rfir
 	nop
@@ -1507,29 +1567,13 @@ dbit_trap_20w:
 
 	L3_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20w
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20w:
-	LDCW		0(t0),t1
-	cmpib,COND(=)         0,t1,dbit_spin_20w
-	nop
-
-dbit_nolock_20w:
-#endif
-	update_dirty	ptp,pte,t1
+	dbit_lock	spc,t0,t1
+	update_dirty	spc,ptp,pte,t1
 
 	make_insert_tlb	spc,pte,prot
 		
 	idtlbt          pte,prot
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20w
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_20w:
-#endif
+	dbit_unlock0	spc,t0
 
 	rfir
 	nop
@@ -1543,18 +1587,8 @@ dbit_trap_11:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_11
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_11:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_11
-	nop
-
-dbit_nolock_11:
-#endif
-	update_dirty	ptp,pte,t1
+	dbit_lock	spc,t0,t1
+	update_dirty	spc,ptp,pte,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1565,13 +1599,7 @@ dbit_nolock_11:
 	idtlbp		prot,(%sr1,va)
 
 	mtsp            t1, %sr1     /* Restore sr1 */
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_11
-	ldi             1,t1
-	stw             t1,0(t0)
-
-dbit_nounlock_11:
-#endif
+	dbit_unlock0	spc,t0
 
 	rfir
 	nop
@@ -1583,32 +1611,15 @@ dbit_trap_20:
 
 	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nolock_20
-	load32		PA(pa_dbit_lock),t0
-
-dbit_spin_20:
-	LDCW		0(t0),t1
-	cmpib,=         0,t1,dbit_spin_20
-	nop
-
-dbit_nolock_20:
-#endif
-	update_dirty	ptp,pte,t1
+	dbit_lock	spc,t0,t1
+	update_dirty	spc,ptp,pte,t1
 
 	make_insert_tlb	spc,pte,prot
 
 	f_extend	pte,t1
 	
         idtlbt          pte,prot
-
-#ifdef CONFIG_SMP
-	cmpib,COND(=),n        0,spc,dbit_nounlock_20
-	ldi             1,t1
-	stw             t1,0(t0)

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Subject: [PATCH] parisc: use long branch in fork_like macro
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please add to stable kernel v3.9
upstream commit bbbfde782084b4f0d85ddffb88f1cf4650ff40e4

From: John David Anglin <dave.anglin@bell.net>

The "b" branch instruction used in the fork_like macro only can handle
17-bit pc-relative offsets.
This fails with an out of range offset with some .config files.
Rewrite to use the "be" instruction which
can branch to any address in a space.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index aa486e4..36f4f1d 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1702,7 +1702,8 @@ ENTRY(sys_\name\()_wrapper)
 	ldo	TASK_REGS(%r1),%r1
 	reg_save %r1
 	mfctl	%cr27, %r28
-	b	sys_\name
+	ldil	L%sys_\name, %r31
+	be	R%sys_\name(%sr4,%r31)
 	STREG	%r28, PT_CR27(%r1)
 ENDPROC(sys_\name\()_wrapper)
 	.endm

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: make default cross compiler search more robust
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please add to stable kernel v3.9
this patch is a merge of upstream commits 
	93782eba49e23c3f311a6b05a19ba15927ec4e8b
and
	6880b0150a7c25fd75c5ece80abc49ebf53c38c1


People/distros vary how they prefix the toolchain name for 64bit builds.
Rather than enforce one convention over another, add a for loop which
does a search for all the general prefixes.

For 64bit builds, we now search for (in order):
	hppa64-unknown-linux-gnu
	hppa64-linux-gnu
	hppa64-linux

For 32bit builds, we look for:
	hppa-unknown-linux-gnu
	hppa-linux-gnu
	hppa-linux
	hppa2.0-unknown-linux-gnu
	hppa2.0-linux-gnu
	hppa2.0-linux
	hppa1.1-unknown-linux-gnu
	hppa1.1-linux-gnu
	hppa1.1-linux

This patch was initiated by Mike Frysinger, with feedback from Jeroen
Roovers, John David Anglin and Helge Deller.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Jeroen Roovers <jer@gentoo.org>
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 113e282..1976900 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -23,26 +23,21 @@ NM		= sh $(srctree)/arch/parisc/nm
 CHECKFLAGS	+= -D__hppa__=1
 LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 
-MACHINE		:= $(shell uname -m)
-ifeq ($(MACHINE),parisc*)
-NATIVE		:= 1
-endif
-
 ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
-WIDTH		:= 64
+CC_ARCHES	= hppa64
 else # 32-bit
-WIDTH		:=
+CC_ARCHES	= hppa hppa2.0 hppa1.1
 endif
 
-# attempt to help out folks who are cross-compiling
-ifeq ($(NATIVE),1)
-CROSS_COMPILE	:= hppa$(WIDTH)-linux-
-else
- ifeq ($(CROSS_COMPILE),)
- CROSS_COMPILE	:= hppa$(WIDTH)-linux-gnu-
- endif
+ifneq ($(SUBARCH),$(UTS_MACHINE))
+	ifeq ($(CROSS_COMPILE),)
+		CC_SUFFIXES = linux linux-gnu unknown-linux-gnu
+		CROSS_COMPILE := $(call cc-cross-prefix, \
+			$(foreach a,$(CC_ARCHES), \
+			$(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
+	endif
 endif
 
 OBJCOPY_FLAGS =-O binary -R .note -R .comment -S

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: add rp5470 entry to machine database
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To: linux-parisc@vger.kernel.org,
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index f7752f6..9e2d2e4 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -222,6 +222,7 @@ static struct hp_hardware hp_hardware_list[] = {
 	{HPHW_NPROC,0x5DD,0x4,0x81,"Duet W2"},
 	{HPHW_NPROC,0x5DE,0x4,0x81,"Piccolo W+"},
 	{HPHW_NPROC,0x5DF,0x4,0x81,"Cantata W2"},
+	{HPHW_NPROC,0x5DF,0x0,0x00,"Marcato W+? (rp5470)"},
 	{HPHW_NPROC,0x5E0,0x4,0x91,"Cantata DC- W2"},
 	{HPHW_NPROC,0x5E1,0x4,0x91,"Crescendo DC- W2"},
 	{HPHW_NPROC,0x5E2,0x4,0x91,"Crescendo 650 W2"},
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Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: use PAGE_SHIFT instead of hardcoded value 12 in
 pacache.S
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additionally clean up some whitespaces & tabs.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 5e1de60..36d7f40 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -605,14 +605,14 @@ ENTRY(copy_user_page_asm)
 	convert_phys_for_tlb_insert20 %r26	/* convert phys addr to tlb insert format */
 	convert_phys_for_tlb_insert20 %r23	/* convert phys addr to tlb insert format */
 	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */
-	depdi		0, 63,PAGE_SHIFT, %r28  /* Clear any offset bits */
+	depdi		0, 63,PAGE_SHIFT, %r28	/* Clear any offset bits */
 	copy		%r28, %r29
 	depdi		1, 41,1, %r29		/* Form aliased virtual address 'from' */
 #else
 	extrw,u		%r26, 24,25, %r26	/* convert phys addr to tlb insert format */
 	extrw,u		%r23, 24,25, %r23	/* convert phys addr to tlb insert format */
 	depw		%r24, 31,22, %r28	/* Form aliased virtual address 'to' */
-	depwi		0, 31,12, %r28		/* Clear any offset bits */
+	depwi		0, 31,PAGE_SHIFT, %r28	/* Clear any offset bits */
 	copy		%r28, %r29
 	depwi		1, 9,1, %r29		/* Form aliased virtual address 'from' */
 #endif
@@ -762,7 +762,7 @@ ENTRY(clear_user_page_asm)
 #else
 	extrw,u		%r26, 24,25, %r26	/* convert phys addr to tlb insert format */
 	depw		%r25, 31,22, %r28	/* Form aliased virtual address 'to' */
-	depwi		0, 31,12, %r28		/* Clear any offset bits */
+	depwi		0, 31,PAGE_SHIFT, %r28	/* Clear any offset bits */
 #endif
 
 	/* Purge any old translation */
@@ -846,7 +846,7 @@ ENTRY(flush_dcache_page_asm)
 #else
 	extrw,u		%r26, 24,25, %r26	/* convert phys addr to tlb insert format */
 	depw		%r25, 31,22, %r28	/* Form aliased virtual address 'to' */
-	depwi		0, 31,12, %r28		/* Clear any offset bits */
+	depwi		0, 31,PAGE_SHIFT, %r28	/* Clear any offset bits */
 #endif
 
 	/* Purge any old translation */
@@ -918,11 +918,11 @@ ENTRY(flush_icache_page_asm)
 #endif
 	convert_phys_for_tlb_insert20 %r26	/* convert phys addr to tlb insert format */
 	depd		%r25, 63,22, %r28	/* Form aliased virtual address 'to' */
-	depdi		0, 63,PAGE_SHIFT, %r28  /* Clear any offset bits */
+	depdi		0, 63,PAGE_SHIFT, %r28	/* Clear any offset bits */
 #else
 	extrw,u		%r26, 24,25, %r26	/* convert phys addr to tlb insert format */
 	depw		%r25, 31,22, %r28	/* Form aliased virtual address 'to' */
-	depwi		0, 31,12, %r28		/* Clear any offset bits */
+	depwi		0, 31,PAGE_SHIFT, %r28	/* Clear any offset bits */
 #endif
 
 	/* Purge any old translation */
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/MAINTAINERS b/MAINTAINERS
index 3d7782b..c0aab68 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6069,6 +6069,7 @@ L:	linux-parisc@vger.kernel.org
 W:	http://www.parisc-linux.org/
 Q:	http://patchwork.kernel.org/project/linux-parisc/list/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
 S:	Maintained
 F:	arch/parisc/
 F:	drivers/parisc/
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From - Thu Nov 08 21:09:16 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: avoid WARNING: at kernel/cpu/idle.c:96
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To: Helge Deller <deller@gmx.de>, Thomas Gleixner <tglx@linutronix.de>
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On Wed, 2013-05-08 at 14:05 -0700, James Bottomley wrote:
> On Wed, 2013-05-08 at 22:42 +0200, Helge Deller wrote:
> > We need to enable local irqs to avoid this runtime warning.
> > 
> > Signed-off-by: Helge Deller <deller@gmx.de>
> > 
> > diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
> > index 55f92b6..2840d43 100644
> > --- a/arch/parisc/kernel/process.c
> > +++ b/arch/parisc/kernel/process.c
> > @@ -286,3 +286,8 @@ void *dereference_function_descriptor(void *ptr)
> >  	return ptr;
> >  }
> >  #endif
> > +
> > +void arch_cpu_idle(void)
> > +{
> > +	local_irq_enable();
> 
> This is definitely wrong.  we'd need at least a cpu_relax() in there.
> Without that the cpu will bounce around in the idle loop.  I'd advise
> that we simply keep the default cpu_idle_poll().
> 
> However, this looks like a kernel bug to me in cpu_idle_loop()?  not
> something we should be working around in the arch code.
> 
> Thomas, what's going on here?  It looks like you can never avoid the
> WARN_ON_ONCE if you don't provide any arch specific idle functions.  If
> you wish to allow this case then the correct patch (keeping the WARN_ON)
> would appear to be this one.

Ping on this, please, Thomas ... the patch looks fairly obviously
correct, do you just want us to take it through the parisc tree?

James


> James
> 
> ----
> diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c
> index 8b86c0c..829e41f 100644
> --- a/kernel/cpu/idle.c
> +++ b/kernel/cpu/idle.c
> @@ -56,6 +56,7 @@ void __weak arch_cpu_idle_dead(void) { }
>  void __weak arch_cpu_idle(void)
>  {
>  	cpu_idle_force_poll = 1;
> +	local_irq_enable();
>  }
>  
>  /*
> 
> 
> --
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From - Thu Nov 08 21:09:17 2018
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From: Greg KH <gregkh@linuxfoundation.org>
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On Thu, May 16, 2013 at 09:32:20PM +0200, Helge Deller wrote:
> please add to stable kernel v3.9
> this patch is a merge of upstream commits 
> 	93782eba49e23c3f311a6b05a19ba15927ec4e8b
> and
> 	6880b0150a7c25fd75c5ece80abc49ebf53c38c1

I prefer to take the original upstream patches, so I've just applied
both of these, instead of your merge.

thanks,

greg k-h
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On 05/09/2013 02:35 AM, James Bottomley wrote:
> On Wed, 2013-05-08 at 22:42 +0200, Helge Deller wrote:
>> We need to enable local irqs to avoid this runtime warning.
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
>> index 55f92b6..2840d43 100644
>> --- a/arch/parisc/kernel/process.c
>> +++ b/arch/parisc/kernel/process.c
>> @@ -286,3 +286,8 @@ void *dereference_function_descriptor(void *ptr)
>>  	return ptr;
>>  }
>>  #endif
>> +
>> +void arch_cpu_idle(void)
>> +{
>> +	local_irq_enable();
> 
> This is definitely wrong.  we'd need at least a cpu_relax() in there.
> Without that the cpu will bounce around in the idle loop.  I'd advise
> that we simply keep the default cpu_idle_poll().
> 
> However, this looks like a kernel bug to me in cpu_idle_loop()?  not
> something we should be working around in the arch code.
> 
> Thomas, what's going on here?  It looks like you can never avoid the
> WARN_ON_ONCE if you don't provide any arch specific idle functions.  If
> you wish to allow this case then the correct patch (keeping the WARN_ON)
> would appear to be this one.
> 
> James
> 
> ----
> diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c
> index 8b86c0c..829e41f 100644
> --- a/kernel/cpu/idle.c
> +++ b/kernel/cpu/idle.c
> @@ -56,6 +56,7 @@ void __weak arch_cpu_idle_dead(void) { }
>  void __weak arch_cpu_idle(void)
>  {
>  	cpu_idle_force_poll = 1;
> +	local_irq_enable();
>  }
> 
>  /*
> 

This patch looks like the correct fix to me.

Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>

Regards,
Srivatsa S. Bhat


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On 05/17/2013 08:25 PM, Greg KH wrote:
> On Thu, May 16, 2013 at 09:32:20PM +0200, Helge Deller wrote:
>> please add to stable kernel v3.9
>> this patch is a merge of upstream commits 
>> 	93782eba49e23c3f311a6b05a19ba15927ec4e8b
>> and
>> 	6880b0150a7c25fd75c5ece80abc49ebf53c38c1
> 
> I prefer to take the original upstream patches, so I've just applied
> both of these, instead of your merge.

That's absolutely fine.
Thanks!

Helge


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This is a multi-part message in MIME format.
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On 05/15/2013 08:16 PM, Helge Deller wrote:
> Hi Meelis,
> 
> On 05/15/2013 08:59 AM, Meelis Roos wrote:
>>>> It did not work - first a __schedule_bug, 
>>>
>>> I assume you have CONFIG_PREEMPT enabled? We know it's currently broken.
>>
>> It is already disabled:
>>
>> CONFIG_PREEMPT_NONE=y
>> # CONFIG_PREEMPT_VOLUNTARY is not set
>> # CONFIG_PREEMPT is not set
>> CONFIG_PREEMPT_COUNT=y
>>
>> I just enabled the new irqstacks...
> 
> Ok, the good thing is, that I got today a rp5470 with which I could reproduce your problems.
> 
> The bad thing is:
> Beside CONFIG_PREEMPT, CONFIG_DISCONTIGMEM is broken too.
> 
> I never noticed the DISCONTIGMEM bug, because all my other machines have flat/linear memory.

I'm not sure any more, that DISCONTIGMEM is buggy... still need more testing on this.

> Attached is a .config with which I was able to successfully boot (tftpboot) into.
> I'm right now looking into getting this machine installed via a new 3.10-rc1 kernel with the debian-5010-hppa-DVD-1.iso (and the initrd from it).
> 
> If I have something working I will make it available.

Just as a heads-up.

I was able to build a stable kernel (3.10-rc1 based + patches).
Dave and me still have at least two patches which made my kernel stable.
With those, I was now able to boot, install and fully upgrade to debian-unstable on my rp5470 (4xPA8700 CPUs).
In the config I used CONFIG_SMP=y (CONFIG_SMP=n crashed!), CONFIG_DISCONTIGMEM=n and CONFIG_PREEMPT=n. 
My config is attached to this mail. 
So, please stay tuned, I'm still working on getting further patches into 3.10.

And, maybe we get to a point, where we can provide new installation-medias....

Helge

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From - Thu Nov 08 21:09:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: show number of FPE and unaligned access handler
 calls in /proc/interrupts
Date: Sat, 18 May 2013 21:35:44 +0200
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Show number of floating point assistant and unaligned access fixup
handler in /proc/interrupts file. 

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index c19f713..4c6dd8d 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -28,6 +28,8 @@ typedef struct {
 	unsigned int irq_resched_count;
 	unsigned int irq_call_count;
 #endif
+	unsigned int irq_unaligned_count;
+	unsigned int irq_fpassist_count;
 	unsigned int irq_tlb_count;
 } ____cacheline_aligned irq_cpustat_t;
 
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 55237a7..9c2d953 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -188,6 +188,14 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_call_count);
 	seq_puts(p, "  Function call interrupts\n");
 #endif
+	seq_printf(p, "%*s: ", prec, "UAH");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10u ", irq_stats(j)->irq_unaligned_count);
+	seq_puts(p, "  Unaligned access handler traps\n");
+	seq_printf(p, "%*s: ", prec, "FPA");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10u ", irq_stats(j)->irq_fpassist_count);
+	seq_puts(p, "  Floating point assist traps\n");
 	seq_printf(p, "%*s: ", prec, "TLB");
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_tlb_count);
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index fe41a98..04e47c6 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -646,6 +646,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 	case 14:
 		/* Assist Exception Trap, i.e. floating point exception. */
 		die_if_kernel("Floating point exception", regs, 0); /* quiet */
+		__inc_irq_stat(irq_fpassist_count);
 		handle_fpe(regs);
 		return;
 
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index 234e368..d7c0acb 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -27,6 +27,7 @@
 #include <linux/signal.h>
 #include <linux/ratelimit.h>
 #include <asm/uaccess.h>
+#include <asm/hardirq.h>
 
 /* #define DEBUG_UNALIGNED 1 */
 
@@ -454,6 +455,8 @@ void handle_unaligned(struct pt_regs *regs)
 	struct siginfo si;
 	register int flop=0;	/* true if this is a flop */
 
+	__inc_irq_stat(irq_unaligned_count);
+
 	/* log a message with pacing */
 	if (user_mode(regs)) {
 		if (current->thread.flags & PARISC_UAC_SIGBUS) {
--
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From - Thu Nov 08 21:09:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: avoid WARNING: at kernel/cpu/idle.c:96
Date: Sat, 18 May 2013 21:40:55 +0200
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-parisc@vger.kernel.org,
	John David Anglin <dave.anglin@bell.net>,
	linux-kernel <linux-kernel@vger.kernel.org>
To: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
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On 05/17/2013 09:25 PM, Srivatsa S. Bhat wrote:
> On 05/09/2013 02:35 AM, James Bottomley wrote:
>> On Wed, 2013-05-08 at 22:42 +0200, Helge Deller wrote:
>>> We need to enable local irqs to avoid this runtime warning.
>>>
>>> Signed-off-by: Helge Deller <deller@gmx.de>
>>>
>>> diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
>>> index 55f92b6..2840d43 100644
>>> --- a/arch/parisc/kernel/process.c
>>> +++ b/arch/parisc/kernel/process.c
>>> @@ -286,3 +286,8 @@ void *dereference_function_descriptor(void *ptr)
>>>  	return ptr;
>>>  }
>>>  #endif
>>> +
>>> +void arch_cpu_idle(void)
>>> +{
>>> +	local_irq_enable();
>>
>> This is definitely wrong.  we'd need at least a cpu_relax() in there.
>> Without that the cpu will bounce around in the idle loop.  I'd advise
>> that we simply keep the default cpu_idle_poll().
>>
>> However, this looks like a kernel bug to me in cpu_idle_loop()?  not
>> something we should be working around in the arch code.
>>
>> Thomas, what's going on here?  It looks like you can never avoid the
>> WARN_ON_ONCE if you don't provide any arch specific idle functions.  If
>> you wish to allow this case then the correct patch (keeping the WARN_ON)
>> would appear to be this one.
>>
>> James
>>
>> ----
>> diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c
>> index 8b86c0c..829e41f 100644
>> --- a/kernel/cpu/idle.c
>> +++ b/kernel/cpu/idle.c
>> @@ -56,6 +56,7 @@ void __weak arch_cpu_idle_dead(void) { }
>>  void __weak arch_cpu_idle(void)
>>  {
>>  	cpu_idle_force_poll = 1;
>> +	local_irq_enable();
>>  }
>>
>>  /*
>>
> 
> This patch looks like the correct fix to me.
> 
> Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>

Thanks Srivatsa!

I can push it through the parisc tree if nobody objects...

Helge
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From - Thu Nov 08 21:09:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: use arch_spinlock_t instead of raw_spinlock_t in
 irqstacks
Date: Sun, 19 May 2013 00:21:13 +0200
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To: linux-parisc@vger.kernel.org,
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We need to use arch_spinlock_t spinlocks instead of raw_spinlock_t
spinlocks for irqstack protection else we will hit the "trylock failure
on UP" error message with CONFIG_SMP=n and CONFIG_DEBUG_SPINLOCK=y.

Since we can be called recursive here even on UP (we are in the irq
handler which handles even irq bh) this spinlock error message is just
wrong.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index cfbc439..b2dca96 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -69,7 +69,7 @@
 
 union irq_stack_union {
 	unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
-	raw_spinlock_t lock;
+	arch_spinlock_t lock;
 };
 
 DECLARE_PER_CPU(union irq_stack_union, irq_stack_union);
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 55237a7..9ba8e5a 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -443,14 +451,14 @@ panic_check:
 
 #ifdef CONFIG_IRQSTACKS
 DEFINE_PER_CPU(union irq_stack_union, irq_stack_union) = {
-		.lock = __RAW_SPIN_LOCK_UNLOCKED((irq_stack_union).lock)
+		.lock = __ARCH_SPIN_LOCK_UNLOCKED,
 	};
 
 static void execute_on_irq_stack(void *func, unsigned long param1)
 {
 	union irq_stack_union *union_ptr;
 	unsigned long irq_stack;
-	raw_spinlock_t *irq_stack_in_use;
+	arch_spinlock_t *irq_stack_in_use;
 
 	union_ptr = &per_cpu(irq_stack_union, smp_processor_id());
 	irq_stack = (unsigned long) &union_ptr->stack;
@@ -462,7 +470,7 @@ static void execute_on_irq_stack(void *func, unsigned long param1)
 	 * the irq stack usage.
 	 */
 	irq_stack_in_use = &union_ptr->lock;
-	if (!raw_spin_trylock(irq_stack_in_use)) {
+	if (!arch_spin_trylock(irq_stack_in_use)) {
 		void (*direct_call)(unsigned long p1) = func;
 
 		/* We are using the IRQ stack already.
@@ -477,7 +485,7 @@ static void execute_on_irq_stack(void *func, unsigned long param1)
 	__inc_irq_stat(irq_stack_counter);
 
 	/* free up irq stack usage. */
-	do_raw_spin_unlock(irq_stack_in_use);
+	arch_spin_unlock(irq_stack_in_use);
 }
 
 asmlinkage void do_softirq(void)
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From - Thu Nov 08 21:09:17 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: make interrupt and interruption stack allocation reentrant
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The get_stack_use_cr30 and get_stack_use_r30 macros allocate a stack  
frame for external
interrupts and interruptions requiring a stack frame.  They are  
currently not reentrant in that
they save register context before the stack is set or adjusted.

I have observed a number of system crashes where there was clear  
evidence of stack corruption
during interrupt processing, and as a result register corruption.   
Some interruptions can still occur
during interruption processing, however external interrupts are  
disabled and data TLB misses
don't occur for absolute accesses.  So, it's not entirely clear what  
triggers this issue.  Also, if an
interruption occurs when Q=0, it is generally not possible to recover  
as the shadowed registers
are not copied.

The attached patch reworks the get_stack_use_cr30 and  
get_stack_use_r30 macros to allocate
stack before doing register saves.  The new code is a couple of  
instructions shorter than the old
implementation.  Thus, it's an improvement even if it doesn't fully  
resolve the stack corruption
issue.  Based on limited testing, it improves SMP system stability.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---


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diff --git a/arch/parisc/include/asm/assembly.h b/arch/parisc/include/asm/assembly.h
index 89fb400..0da8482 100644
--- a/arch/parisc/include/asm/assembly.h
+++ b/arch/parisc/include/asm/assembly.h
@@ -438,7 +438,6 @@
 	SAVE_SP  (%sr4, PT_SR4 (\regs))
 	SAVE_SP  (%sr5, PT_SR5 (\regs))
 	SAVE_SP  (%sr6, PT_SR6 (\regs))
-	SAVE_SP  (%sr7, PT_SR7 (\regs))
 
 	SAVE_CR  (%cr17, PT_IASQ0(\regs))
 	mtctl	 %r0,	%cr17
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index ae27cb6..e8f07dd 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -65,15 +65,11 @@
 	rsm	PSW_SM_I, %r0	/* barrier for "Relied upon Translation */
 	mtsp	%r0, %sr4
 	mtsp	%r0, %sr5
-	mfsp	%sr7, %r1
-	or,=    %r0,%r1,%r0	/* Only save sr7 in sr3 if sr7 != 0 */
-	mtsp	%r1, %sr3
+	mtsp	%r0, %sr6
 	tovirt_r1 %r29
 	load32	KERNEL_PSW, %r1
 
 	rsm     PSW_SM_QUIET,%r0	/* second "heavy weight" ctl op */
-	mtsp	%r0, %sr6
-	mtsp	%r0, %sr7
 	mtctl	%r0, %cr17	/* Clear IIASQ tail */
 	mtctl	%r0, %cr17	/* Clear IIASQ head */
 	mtctl	%r1, %ipsw
@@ -119,17 +115,20 @@
 
 	/* we save the registers in the task struct */
 
+	copy	%r30, %r17
 	mfctl   %cr30, %r1
+	ldo	THREAD_SZ_ALGN(%r1), %r30
+	mtsp	%r0,%sr7
+	mtsp	%r16,%sr3
 	tophys  %r1,%r9
 	LDREG	TI_TASK(%r9), %r1	/* thread_info -> task_struct */
 	tophys  %r1,%r9
 	ldo     TASK_REGS(%r9),%r9
-	STREG   %r30, PT_GR30(%r9)
+	STREG   %r17,PT_GR30(%r9)
 	STREG   %r29,PT_GR29(%r9)
 	STREG   %r26,PT_GR26(%r9)
+	STREG	%r16,PT_SR7(%r9)
 	copy    %r9,%r29
-	mfctl   %cr30, %r1
-	ldo	THREAD_SZ_ALGN(%r1), %r30
 	.endm
 
 	.macro  get_stack_use_r30
@@ -137,10 +136,12 @@
 	/* we put a struct pt_regs on the stack and save the registers there */
 
 	tophys  %r30,%r9
-	STREG   %r30,PT_GR30(%r9)
+	copy	%r30,%r1
 	ldo	PT_SZ_ALGN(%r30),%r30
+	STREG   %r1,PT_GR30(%r9)
 	STREG   %r29,PT_GR29(%r9)
 	STREG   %r26,PT_GR26(%r9)
+	STREG	%r16,PT_SR7(%r9)
 	copy    %r9,%r29
 	.endm
 

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--
John David Anglin	dave.anglin@bell.net


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Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---
 drivers/parisc/superio.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index ac6e8e7..a042d06 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -494,15 +494,4 @@ static struct pci_driver superio_driver = {
 	.probe =        superio_probe,
 };
 
-static int __init superio_modinit(void)
-{
-	return pci_register_driver(&superio_driver);
-}
-
-static void __exit superio_exit(void)
-{
-	pci_unregister_driver(&superio_driver);
-}

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Hello,
On 2013/04/30 12:01, Damian Hobson-Garcia wrote:
> Most architectures that define CONFIG_HAVE_DMA=y, have implementations for
> both dma_alloc_attrs() and dma_free_attrs().  All achitectures that do
> not define CONFIG_HAVE_DMA also have both of these definitions provided by
> dma-mapping-broken.h.
> 
> Provide a default definition for the archs that define CONFIG_HAVE_DMA=y,
> but have no implementation for dma_{alloc,free}_attrs(). 
> 
> As I don't have hardware for any of these systems, the patches are only
> compile-tested where I could (arm64, s390) and untested for the archs
> where I couldn't find a readily available prebuilt cross-compiler (c6x, parisc).
> 


>  arch/arm64/include/asm/dma-mapping.h  |   17 +++++++++++------
>  arch/c6x/include/asm/dma-mapping.h    |    3 +++
>  arch/parisc/include/asm/dma-mapping.h |    3 +++
>  arch/s390/include/asm/dma-mapping.h   |   17 +++++++++++------
>  4 files changed, 28 insertions(+), 12 deletions(-)
> 

Since this series spans several architectures, what would be the best
way to have this patch series merged?
Should I resubmit each patch to the mailing list for each architecture
separately?

Thank you,
Damian

-- 
Damian Hobson-Garcia
IGEL Co.,Ltd
http://www.igel.co.jp

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On Wed, May 22, 2013 at 03:37:17AM +0100, Damian Hobson-Garcia wrote:
> Hello,
> On 2013/04/30 12:01, Damian Hobson-Garcia wrote:
> > Most architectures that define CONFIG_HAVE_DMA=y, have implementations for
> > both dma_alloc_attrs() and dma_free_attrs().  All achitectures that do
> > not define CONFIG_HAVE_DMA also have both of these definitions provided by
> > dma-mapping-broken.h.

BTW, shouldn't this be called CONFIG_HAVE_DMA_ATTRS?

> > Provide a default definition for the archs that define CONFIG_HAVE_DMA=y,
> > but have no implementation for dma_{alloc,free}_attrs(). 
> > 
> > As I don't have hardware for any of these systems, the patches are only
> > compile-tested where I could (arm64, s390) and untested for the archs
> > where I couldn't find a readily available prebuilt cross-compiler (c6x, parisc).
> 
> >  arch/arm64/include/asm/dma-mapping.h  |   17 +++++++++++------
> >  arch/c6x/include/asm/dma-mapping.h    |    3 +++
> >  arch/parisc/include/asm/dma-mapping.h |    3 +++
> >  arch/s390/include/asm/dma-mapping.h   |   17 +++++++++++------
> >  4 files changed, 28 insertions(+), 12 deletions(-)
> > 
> 
> Since this series spans several architectures, what would be the best
> way to have this patch series merged?
> Should I resubmit each patch to the mailing list for each architecture
> separately?

I'm happy to take the arm64 patch.

Thanks.

-- 
Catalin

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On 05/22/2013 04:37 AM, Damian Hobson-Garcia wrote:
> Hello,
> On 2013/04/30 12:01, Damian Hobson-Garcia wrote:
>> Most architectures that define CONFIG_HAVE_DMA=y, have implementations for
>> both dma_alloc_attrs() and dma_free_attrs().  All achitectures that do
>> not define CONFIG_HAVE_DMA also have both of these definitions provided by
>> dma-mapping-broken.h.
>>
>> Provide a default definition for the archs that define CONFIG_HAVE_DMA=y,
>> but have no implementation for dma_{alloc,free}_attrs(). 
>>
>> As I don't have hardware for any of these systems, the patches are only
>> compile-tested where I could (arm64, s390) and untested for the archs
>> where I couldn't find a readily available prebuilt cross-compiler (c6x, parisc).
>>
> 
> 
>>  arch/arm64/include/asm/dma-mapping.h  |   17 +++++++++++------
>>  arch/c6x/include/asm/dma-mapping.h    |    3 +++
>>  arch/parisc/include/asm/dma-mapping.h |    3 +++
>>  arch/s390/include/asm/dma-mapping.h   |   17 +++++++++++------
>>  4 files changed, 28 insertions(+), 12 deletions(-)
>>
> 
> Since this series spans several architectures, what would be the best
> way to have this patch series merged?
> Should I resubmit each patch to the mailing list for each architecture
> separately?

I already pushed the parisc change upstream.
See commit 7f64fb41aad9a8504dd76e81b2391eae64e1498a

Helge
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	Will Deacon <Will.Deacon@arm.com>,
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Hi Catalin,
On 2013/05/22 18:47, Catalin Marinas wrote:
> On Wed, May 22, 2013 at 03:37:17AM +0100, Damian Hobson-Garcia wrote:
>> Hello,
>> On 2013/04/30 12:01, Damian Hobson-Garcia wrote:
>>> Most architectures that define CONFIG_HAVE_DMA=y, have implementations for
>>> both dma_alloc_attrs() and dma_free_attrs().  All achitectures that do
>>> not define CONFIG_HAVE_DMA also have both of these definitions provided by
>>> dma-mapping-broken.h.
> 
> BTW, shouldn't this be called CONFIG_HAVE_DMA_ATTRS?

CONFIG_HAVE_DMA_ATTRS is currently used to enable the functions to
set/get the DMA attribute values. Poking through the headers, it looks
like the struct dma_attrs is defined regardless of the
CONFIG_HAVE_DMA_ATTRS setting, so in that respect
we always seem to "have" DMA attributes (if we have DMA), but they may
not always be meaningful (ie. set to some value).

> 
>>> Provide a default definition for the archs that define CONFIG_HAVE_DMA=y,
>>> but have no implementation for dma_{alloc,free}_attrs(). 
>>>
>>> As I don't have hardware for any of these systems, the patches are only
>>> compile-tested where I could (arm64, s390) and untested for the archs
>>> where I couldn't find a readily available prebuilt cross-compiler (c6x, parisc).
>>
>>>  arch/arm64/include/asm/dma-mapping.h  |   17 +++++++++++------
>>>  arch/c6x/include/asm/dma-mapping.h    |    3 +++
>>>  arch/parisc/include/asm/dma-mapping.h |    3 +++
>>>  arch/s390/include/asm/dma-mapping.h   |   17 +++++++++++------
>>>  4 files changed, 28 insertions(+), 12 deletions(-)
>>>
>>
>> Since this series spans several architectures, what would be the best
>> way to have this patch series merged?
>> Should I resubmit each patch to the mailing list for each architecture
>> separately?
> 
> I'm happy to take the arm64 patch.
Very much appreciated.

> 
> Thanks.
> 
Damian
-- 
Damian Hobson-Garcia
IGEL Co.,Ltd
http://www.igel.co.jp
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From - Thu Nov 08 21:09:18 2018
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From: Chen Gang <gang.chen@asianux.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uml.devel,gmane.linux.uml.user
Subject: [PATCH] arch: configuration, deleting 'CONFIG_BUG' since always need
 it.
Date: Thu, 23 May 2013 15:57:35 +0800
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	<linux-arm-kernel@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>,
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	Mike Frysinger <vapier@gentoo.org>, ysato@users.sourceforge.jp,
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	"mingo@redhat.com" <mingo@redhat.com>, hpa@zytor.com,
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	paulmck@linux.vnet.ibm.com,
	Frederic Weisbecker <fweisbec@gmail.com>,
	David Miller <davem@davemloft.net>,
	Andrew Morton <akpm@linux-foundation.org>,
	akinobu.mita@gmail.com, Catalin Marinas <Catalin.Marinas@arm.com>,
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The crazy user can unset 'CONFIG_BUG' in menuconfig: "> General setup >
Configure standard kernel features (expert users) > BUG() Support".

But in fact, we always need it, and quite a few of architectures have
already implemented it (e.g. alpha, arc, arm, avr32, blackfin, cris,
frv, ia64, m68k, mips, mn10300, parisc, powerpc, s390, sh, sparc, x86).

And kernel also already has prepared a default effective implementation
for the architectures which is unwilling to implement it by themselves
(e.g. arm64, c6x, h8300, hexagon, m32r, metag, microblaze, openrisc,
score, tile, um, unicore32, xtensa).

So need get rid of 'CONFIG_BUG', and let it always enabled everywhere.


Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 arch/arm/Kconfig          |    1 -
 arch/avr32/Kconfig        |    1 -
 arch/blackfin/Kconfig     |    1 -
 arch/h8300/Kconfig        |    1 -
 arch/hexagon/Kconfig      |    1 -
 arch/parisc/Kconfig       |    2 --
 arch/powerpc/Kconfig      |    1 -
 arch/s390/Kconfig         |    2 +-
 arch/sh/Kconfig           |    2 +-
 arch/um/Kconfig.common    |    1 -
 arch/x86/Kconfig          |    1 -
 include/asm-generic/bug.h |   29 -----------------------------
 init/Kconfig              |   10 ----------
 lib/Kconfig.debug         |    2 +-
 14 files changed, 3 insertions(+), 52 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a7fc5ea..ea4a146 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -265,7 +265,6 @@ config PHYS_OFFSET
 
 config GENERIC_BUG
 	def_bool y
-	depends on BUG
 
 source "init/Kconfig"
 
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index bdc3558..7c9005a 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -55,7 +55,6 @@ config GENERIC_CALIBRATE_DELAY
 
 config GENERIC_BUG
 	def_bool y
-	depends on BUG
 
 source "init/Kconfig"
 
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index a117652..637dc42 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -47,7 +47,6 @@ config GENERIC_CSUM
 
 config GENERIC_BUG
 	def_bool y
-	depends on BUG
 
 config ZONE_DMA
 	def_bool y
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 303e4f9..88848da 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -56,7 +56,6 @@ config GENERIC_CALIBRATE_DELAY
 
 config GENERIC_BUG
         bool
-        depends on BUG
 
 config TIME_LOW_RES
 	bool
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 33a9792..f50cc8f 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -84,7 +84,6 @@ config STACKTRACE_SUPPORT
 
 config GENERIC_BUG
 	def_bool y
-	depends on BUG
 
 menu "Machine selection"
 
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 6507dab..5de1f8c 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -10,7 +10,6 @@ config PARISC
 	select RTC_CLASS
 	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
-	select BUG
 	select HAVE_PERF_EVENTS
 	select GENERIC_ATOMIC64 if !64BIT
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
@@ -62,7 +61,6 @@ config ARCH_HAS_ILOG2_U64
 config GENERIC_BUG
 	bool
 	default y
-	depends on BUG
 
 config GENERIC_HWEIGHT
 	bool
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c33e3ad..34f4ca9 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -187,7 +187,6 @@ config AUDIT_ARCH
 config GENERIC_BUG
 	bool
 	default y
-	depends on BUG
 
 config SYS_SUPPORTS_APM_EMULATION
 	default y if PMAC_APM_EMU
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index da183c5..5d7b3db 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -29,7 +29,7 @@ config GENERIC_HWEIGHT
 	def_bool y
 
 config GENERIC_BUG
-	def_bool y if BUG
+	def_bool y
 
 config GENERIC_BUG_RELATIVE_POINTERS
 	def_bool y
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 8c868cf..d555e7f 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -84,7 +84,7 @@ config RWSEM_XCHGADD_ALGORITHM
 
 config GENERIC_BUG
 	def_bool y
-	depends on BUG && SUPERH32
+	depends on SUPERH32
 
 config GENERIC_CSUM
 	def_bool y
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index bceee66..7aae42a 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -53,7 +53,6 @@ config GENERIC_CALIBRATE_DELAY
 config GENERIC_BUG
 	bool
 	default y
-	depends on BUG
 
 config HZ
 	int
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 723e42e..a36e1b4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -166,7 +166,6 @@ config GENERIC_ISA_DMA
 
 config GENERIC_BUG
 	def_bool y
-	depends on BUG
 	select GENERIC_BUG_RELATIVE_POINTERS if X86_64
 
 config GENERIC_BUG_RELATIVE_POINTERS
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 7d10f96..5d50903 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -12,8 +12,6 @@
 #ifndef __ASSEMBLY__
 #include <linux/kernel.h>
 
-#ifdef CONFIG_BUG
-
 #ifdef CONFIG_GENERIC_BUG
 struct bug_entry {
 #ifndef CONFIG_GENERIC_BUG_RELATIVE_POINTERS
@@ -106,33 +104,6 @@ extern void warn_slowpath_null(const char *file, const int line);
 	unlikely(__ret_warn_on);					\
 })
 
-#else /* !CONFIG_BUG */
-#ifndef HAVE_ARCH_BUG
-#define BUG() do {} while(0)
-#endif
-
-#ifndef HAVE_ARCH_BUG_ON
-#define BUG_ON(condition) do { if (condition) ; } while(0)
-#endif
-
-#ifndef HAVE_ARCH_WARN_ON
-#define WARN_ON(condition) ({						\
-	int __ret_warn_on = !!(condition);				\
-	unlikely(__ret_warn_on);					\
-})
-#endif
-
-#ifndef WARN
-#define WARN(condition, format...) ({					\
-	int __ret_warn_on = !!(condition);				\
-	unlikely(__ret_warn_on);					\
-})
-#endif
-
-#define WARN_TAINT(condition, taint, format...) WARN_ON(condition)
-
-#endif
-
 #define WARN_ON_ONCE(condition)	({				\
 	static bool __section(.data.unlikely) __warned;		\
 	int __ret_warn_once = !!(condition);			\
diff --git a/init/Kconfig b/init/Kconfig
index 7fb26a6..bc1dd49 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1360,16 +1360,6 @@ config PRINTK
 	  very difficult to diagnose system problems, saying N here is
 	  strongly discouraged.
 
-config BUG
-	bool "BUG() support" if EXPERT
-	default y
-	help
-          Disabling this option eliminates support for BUG and WARN, reducing
-          the size of your kernel image and potentially quietly ignoring
-          numerous fatal conditions. You should only consider disabling this
-          option for embedded systems with no facilities for reporting errors.
-          Just say Y.
-
 config ELF_CORE
 	depends on COREDUMP
 	default y
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 566cf2b..54b3251 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -700,7 +700,7 @@ config HAVE_DEBUG_BUGVERBOSE
 
 config DEBUG_BUGVERBOSE
 	bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EXPERT
-	depends on BUG && (GENERIC_BUG || HAVE_DEBUG_BUGVERBOSE)
+	depends on GENERIC_BUG || HAVE_DEBUG_BUGVERBOSE
 	default y
 	help
 	  Say Y here to make BUG() panics output the file name and line number
-- 
1.7.7.6

From - Thu Nov 08 21:09:18 2018
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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.hexagon
Subject: Re: [PATCH] arch: configuration, deleting 'CONFIG_BUG' since always
 need it.
Date: Thu, 23 May 2013 10:40:29 +0200
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
 Linux-sh list <linux-sh@vger.kernel.org>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
 "paulus@samba.org" <paulus@samba.org>, "H. Peter Anvin" <hpa@zytor.com>,
 Michel Lespinasse <walken@google.com>,
 Hans-Christian Egtvedt <egtvedt@samfundet.no>,
 Linux-Arch <linux-arch@vger.kernel.org>, linux-s390@vger.kernel.org,
 Russell King - ARM Linux <linux@arm.linux.org.uk>,
 uml-devel <user-mode-linux-devel@lists.sourceforge.net>,
 Yoshinori Sato <ysato@users.sourceforge.jp>,
 Richard Weinberger <richard@nod.at>, Helge Deller <deller@gmx.de>,
 the arch/x86 maintainers <x86@kernel.org>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 "mingo@redhat.com" <mingo@redhat.com>,
 Frederic Weisbecker <fweisbec@gmail.com>,
 Paul McKenney <paulmck@linux.vnet.ibm.com>,
 =?UTF-8?Q?H=C3=A5vard_Skinnemoen?= <hskinnemoen@gmail.com>,
 Serge Hallyn <serge.hallyn
To: Chen Gang <gang.chen@asianux.com>
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On Thu, May 23, 2013 at 9:57 AM, Chen Gang <gang.chen@asianux.com> wrote:
> The crazy user can unset 'CONFIG_BUG' in menuconfig: "> General setup >
> Configure standard kernel features (expert users) > BUG() Support".
>
> But in fact, we always need it, and quite a few of architectures have

Sorry, but we don't. I think you don't get the meaning of the BUG config symbol
(see below).

> already implemented it (e.g. alpha, arc, arm, avr32, blackfin, cris,
> frv, ia64, m68k, mips, mn10300, parisc, powerpc, s390, sh, sparc, x86).

What do you mean by "already implemented it"? E.g. on m68k, I can disable
or enable CONFIG_BUG. Both work.

> And kernel also already has prepared a default effective implementation
> for the architectures which is unwilling to implement it by themselves
> (e.g. arm64, c6x, h8300, hexagon, m32r, metag, microblaze, openrisc,
> score, tile, um, unicore32, xtensa).

This is not about providing an implementation or not...

> -config BUG
> -       bool "BUG() support" if EXPERT
> -       default y
> -       help
> -          Disabling this option eliminates support for BUG and WARN, reducing
> -          the size of your kernel image and potentially quietly ignoring
> -          numerous fatal conditions. You should only consider disabling this
> -          option for embedded systems with no facilities for reporting errors.
> -          Just say Y.

... It's about reducing memory size on devices where you can't show bug or
warning messages.

> So need get rid of 'CONFIG_BUG', and let it always enabled everywhere.

So please keep it.

Thanks!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Subject: Re: [PATCH] arch: configuration,
 deleting 'CONFIG_BUG' since always need it.
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On Thursday 23 May 2013, Geert Uytterhoeven wrote:
> > -config BUG
> > -       bool "BUG() support" if EXPERT
> > -       default y
> > -       help
> > -          Disabling this option eliminates support for BUG and WARN, reducing
> > -          the size of your kernel image and potentially quietly ignoring
> > -          numerous fatal conditions. You should only consider disabling this
> > -          option for embedded systems with no facilities for reporting errors.
> > -          Just say Y.
> 
> ... It's about reducing memory size on devices where you can't show bug or
> warning messages.
> 
> > So need get rid of 'CONFIG_BUG', and let it always enabled everywhere.
> 
> So please keep it.

Agreed. The one annoying property of disabling BUG() support is that it causes
a large number of build warnings since the compiler now has to assume that a lot
of code is reachable when it is normally annotate as unreachable.

When I do "randconfig" tests, I always turn on CONFIG_BUG because of this.

	Arnd

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Subject: Re: [PATCH] arch: configuration,
	deleting 'CONFIG_BUG' since	always need it.
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On Thu, May 23, 2013 at 10:40:29AM +0200, Geert Uytterhoeven wrote:
> On Thu, May 23, 2013 at 9:57 AM, Chen Gang <gang.chen-bOixZGp5f+dBDgjK7y7TUQ@public.gmane.org> wrote:
> > -config BUG
> > -       bool "BUG() support" if EXPERT
> > -       default y
> > -       help
> > -          Disabling this option eliminates support for BUG and WARN, reducing
> > -          the size of your kernel image and potentially quietly ignoring
> > -          numerous fatal conditions. You should only consider disabling this
> > -          option for embedded systems with no facilities for reporting errors.
> > -          Just say Y.
> 
> ... It's about reducing memory size on devices where you can't show bug or
> warning messages.

And turning off CONFIG_BUG causes lots of warning messages at compile time
about functions which are returning nothing which shouldn't.

The problem is: trying to fix that _will_ mean the result is a larger
kernel than if you just do the usual arch-implemented thing of placing
an defined faulting instruction at the BUG() site - which defeats the
purpose of turning off CONFIG_BUG.

Therefore, it's better that CONFIG_BUG always be y and we stop kidding
ourselves that it's possible to turn this off and safely save space.

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Subject: Re: [PATCH] arch: configuration, deleting 'CONFIG_BUG' since always
 need it.
Date: Thu, 23 May 2013 11:12:56 +0200
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On Thu, May 23, 2013 at 11:05 AM, Russell King - ARM Linux
<linux@arm.linux.org.uk> wrote:
> On Thu, May 23, 2013 at 10:40:29AM +0200, Geert Uytterhoeven wrote:
>> On Thu, May 23, 2013 at 9:57 AM, Chen Gang <gang.chen@asianux.com> wrote:
>> > -config BUG
>> > -       bool "BUG() support" if EXPERT
>> > -       default y
>> > -       help
>> > -          Disabling this option eliminates support for BUG and WARN, reducing
>> > -          the size of your kernel image and potentially quietly ignoring
>> > -          numerous fatal conditions. You should only consider disabling this
>> > -          option for embedded systems with no facilities for reporting errors.
>> > -          Just say Y.
>>
>> ... It's about reducing memory size on devices where you can't show bug or
>> warning messages.
>
> And turning off CONFIG_BUG causes lots of warning messages at compile time
> about functions which are returning nothing which shouldn't.
>
> The problem is: trying to fix that _will_ mean the result is a larger
> kernel than if you just do the usual arch-implemented thing of placing
> an defined faulting instruction at the BUG() site - which defeats the
> purpose of turning off CONFIG_BUG.

Is __builtin_unreachable() working well these days?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

From - Thu Nov 08 21:09:18 2018
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Subject: Re: [PATCH] arch: configuration,
 deleting 'CONFIG_BUG' since always need it.
Date: Thu, 23 May 2013 11:39:37 +0200
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On Thursday 23 May 2013, Geert Uytterhoeven wrote:
> > The problem is: trying to fix that will mean the result is a larger
> > kernel than if you just do the usual arch-implemented thing of placing
> > an defined faulting instruction at the BUG() site - which defeats the
> > purpose of turning off CONFIG_BUG.
> 
> Is __builtin_unreachable() working well these days?
> 

Hmm, I just tried the trivial patch below, which seemed to do the right thing.
Needs a little more investigation, but that might actually be the correct
solution. I thought that at some point __builtin_unreachable() was the same
as "do {} while (1)", but this is not the case with the gcc I was using --
it just tells gcc that we don't expect to ever get here.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 7d10f96..9afff7d 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -108,11 +108,11 @@ extern void warn_slowpath_null(const char *file, const int line);
 
 #else /* !CONFIG_BUG */
 #ifndef HAVE_ARCH_BUG
-#define BUG() do {} while(0)
+#define BUG() __builtin_unreachable ()
 #endif
 
 #ifndef HAVE_ARCH_BUG_ON
-#define BUG_ON(condition) do { if (condition) ; } while(0)
+#define BUG_ON(condition) do { if (condition) __builtin_unreachable(); } while(0)
 #endif
 
 #ifndef HAVE_ARCH_WARN_ON

From - Thu Nov 08 21:09:18 2018
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From: Catalin Marinas <catalin.marinas@arm.com>
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Subject: Re: [PATCH v2 0/4] dma-mapping: Define dma_{alloc,free}_attrs()
 for all archs
Date: Thu, 23 May 2013 10:47:09 +0100
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To: Damian Hobson-Garcia <dhobsong@igel.co.jp>
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On Thu, May 23, 2013 at 03:47:13AM +0100, Damian Hobson-Garcia wrote:
> Hi Catalin,
> On 2013/05/22 18:47, Catalin Marinas wrote:
> > On Wed, May 22, 2013 at 03:37:17AM +0100, Damian Hobson-Garcia wrote:
> >> Hello,
> >> On 2013/04/30 12:01, Damian Hobson-Garcia wrote:
> >>> Most architectures that define CONFIG_HAVE_DMA=y, have implementations for
> >>> both dma_alloc_attrs() and dma_free_attrs().  All achitectures that do
> >>> not define CONFIG_HAVE_DMA also have both of these definitions provided by
> >>> dma-mapping-broken.h.
> > 
> > BTW, shouldn't this be called CONFIG_HAVE_DMA_ATTRS?
> 
> CONFIG_HAVE_DMA_ATTRS is currently used to enable the functions to
> set/get the DMA attribute values. Poking through the headers, it looks
> like the struct dma_attrs is defined regardless of the
> CONFIG_HAVE_DMA_ATTRS setting, so in that respect
> we always seem to "have" DMA attributes (if we have DMA), but they may
> not always be meaningful (ie. set to some value).

My point was about the commit log - grep'ing the kernel for
CONFIG_HAVE_DMA did not return anything.

-- 
Catalin
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From - Thu Nov 08 21:09:18 2018
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From: Chen Gang <gang.chen@asianux.com>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.hexagon
Subject: Re: [PATCH] arch: configuration, deleting 'CONFIG_BUG' since always
 need it.
Date: Thu, 23 May 2013 18:05:10 +0800
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
 Linux-sh list <linux-sh@vger.kernel.org>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
 "paulus@samba.org" <paulus@samba.org>, "H. Peter Anvin" <hpa@zytor.com>,
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 =?UTF-8?B?SMOldmFy?= =?UTF-8?B?ZCBTa2lubmVtb2Vu?= <hskinnemoen@gmail.com>,
 Serge Hally
To: Geert Uytterhoeven <geert@linux-m68k.org>
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On 05/23/2013 05:12 PM, Geert Uytterhoeven wrote:
> On Thu, May 23, 2013 at 11:05 AM, Russell King - ARM Linux
> <linux@arm.linux.org.uk> wrote:
>> > On Thu, May 23, 2013 at 10:40:29AM +0200, Geert Uytterhoeven wrote:
>>> >> On Thu, May 23, 2013 at 9:57 AM, Chen Gang <gang.chen@asianux.com> wrote:
>>>> >> > -config BUG
>>>> >> > -       bool "BUG() support" if EXPERT
>>>> >> > -       default y
>>>> >> > -       help
>>>> >> > -          Disabling this option eliminates support for BUG and WARN, reducing
>>>> >> > -          the size of your kernel image and potentially quietly ignoring
>>>> >> > -          numerous fatal conditions. You should only consider disabling this
>>>> >> > -          option for embedded systems with no facilities for reporting errors.
>>>> >> > -          Just say Y.
>>> >>
>>> >> ... It's about reducing memory size on devices where you can't show bug or
>>> >> warning messages.
>> >
>> > And turning off CONFIG_BUG causes lots of warning messages at compile time
>> > about functions which are returning nothing which shouldn't.
>> >
>> > The problem is: trying to fix that _will_ mean the result is a larger
>> > kernel than if you just do the usual arch-implemented thing of placing
>> > an defined faulting instruction at the BUG() site - which defeats the
>> > purpose of turning off CONFIG_BUG.
> Is __builtin_unreachable() working well these days?

In fact, using __builtin_unreachable() is a standard way for
architectures to implemented their own BUG() (e.g. x86, s390, powerpc,
arm ...)

Before __builtin_unreachable(), must need an inline asm instruction
which architecture specific.

I have test using __builtin_unreachable() without an related asm
instruction before, it prints many unexpected things (please see the
attachment).

So I think, it is not suitable to use it in "asm-generic/bug.h"


Thanks.
-- 
Chen Gang

Asianux Corporation

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_______________________________________________
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From: Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>
Newsgroups: gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] arch: configuration,
	deleting 'CONFIG_BUG' since	always need it.
Date: Thu, 23 May 2013 11:04:09 +0100
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Cc: Linux-sh list <linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
        Catalin Marinas <Catalin.Marinas-5wv7dgnIgG8@public.gmane.org>,
        Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>,
        Chen Gang <gang.chen-bOixZGp5f+dBDgjK7y7TUQ@public.gmane.org>,
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        Linux-Arch <linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
        Yoshinori Sato <ysato-Rn4VEauK+AKRv+LV9MX5uooqe+aC9MnS@public.gmane.org>,
        Richard Weinberger <richard-/L3Ra7n9ekc@public.gmane.org>, Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>,
        the arch/x86 maintainers <x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
        "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>,
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        Frederic Weisbecker <fweisbec-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
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On Thu, May 23, 2013 at 11:39:37AM +0200, Arnd Bergmann wrote:
> On Thursday 23 May 2013, Geert Uytterhoeven wrote:
> > > The problem is: trying to fix that will mean the result is a larger
> > > kernel than if you just do the usual arch-implemented thing of placing
> > > an defined faulting instruction at the BUG() site - which defeats the
> > > purpose of turning off CONFIG_BUG.
> > 
> > Is __builtin_unreachable() working well these days?
> > 
> 
> Hmm, I just tried the trivial patch below, which seemed to do the right thing.
> Needs a little more investigation, but that might actually be the correct
> solution. I thought that at some point __builtin_unreachable() was the same
> as "do {} while (1)", but this is not the case with the gcc I was using --
> it just tells gcc that we don't expect to ever get here.

All this is doing is hiding the warning, nothing more.

What the compiler does is this:

	beq	1f
	... some asm code ...
	__builtin_reachable() point
	maybe a literal table
1:	... some asm code doing some other part of the function ...

and what will happen is that the first block of asm will fall through the
(possibly present) literal table into the following asm code.  So, as
specified in the gcc manual, if you ever hit a __builtin_unreachable()
point, your program is undefined (as in, the behaviour of it can no longer
be known.)

We can't make that guarantee with BUG() - because sometimes they do fire
and sometimes in the most unlikely scenarios, particularly if you're not
looking, or at the most inconvenient time.

So, if you want to use this, then you should update the CONFIG_BUG text
to include a warning to this effect:

     Warning: if CONFIG_BUG is turned off, and control flow reaches
     a BUG(), the system behaviour will be undefined.

so that people can make an informed choice about this, because at the
moment:

          Disabling this option eliminates support for BUG and WARN, reducing
          the size of your kernel image and potentially quietly ignoring
          numerous fatal conditions. You should only consider disabling this
          option for embedded systems with no facilities for reporting errors.
          Just say Y.

will become completely misleading.  Turning this option off will _not_
result in "quietly ignoring numerous fatal conditions".

And I come back to one of my previous arguments - is it not better to
panic() if we hit one of these conditions so that the system can try to
do a panic-reboot rather than continue blindly into the unknown?

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Subject: Re: [PATCH] arch: configuration,
 deleting 'CONFIG_BUG' since always need it.
Date: Thu, 23 May 2013 03:09:50 -0700
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
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To: Arnd Bergmann <arnd@arndb.de>
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Arnd Bergmann <arnd@arndb.de> writes:

> On Thursday 23 May 2013, Geert Uytterhoeven wrote:
>> > The problem is: trying to fix that will mean the result is a larger
>> > kernel than if you just do the usual arch-implemented thing of placing
>> > an defined faulting instruction at the BUG() site - which defeats the
>> > purpose of turning off CONFIG_BUG.
>> 
>> Is __builtin_unreachable() working well these days?
>> 
>
> Hmm, I just tried the trivial patch below, which seemed to do the right thing.
> Needs a little more investigation, but that might actually be the correct
> solution. I thought that at some point __builtin_unreachable() was the same
> as "do {} while (1)", but this is not the case with the gcc I was using --
> it just tells gcc that we don't expect to ever get here.

Yes.

We already have this abstracted in compiler.h as the macro unreachable,
so the slight modification of your patch below should handle this case.

For compilers without __builtin_unreachable() unreachable() expands to
do {} while(1) but an infinite loop seems reasonable and preserves the
semantics of the code, unlike the current noop that is do {} while(0).

> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
>
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 7d10f96..9afff7d 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -108,11 +108,11 @@ extern void warn_slowpath_null(const char *file, const int line);
 
 #else /* !CONFIG_BUG */
 #ifndef HAVE_ARCH_BUG
-#define BUG() do {} while(0)
+#define BUG() unreachable ()
 #endif
 
 #ifndef HAVE_ARCH_BUG_ON
-#define BUG_ON(condition) do { if (condition) ; } while(0)
+#define BUG_ON(condition) do { if (condition) unreachable(); } while(0)
 #endif
 
 #ifndef HAVE_ARCH_WARN_ON

From - Thu Nov 08 21:09:18 2018
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From: Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>
Newsgroups: gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] arch: configuration,
	deleting 'CONFIG_BUG' since	always need it.
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On Thu, May 23, 2013 at 03:09:50AM -0700, Eric W. Biederman wrote:
> Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org> writes:
> 
> > On Thursday 23 May 2013, Geert Uytterhoeven wrote:
> >> > The problem is: trying to fix that will mean the result is a larger
> >> > kernel than if you just do the usual arch-implemented thing of placing
> >> > an defined faulting instruction at the BUG() site - which defeats the
> >> > purpose of turning off CONFIG_BUG.
> >> 
> >> Is __builtin_unreachable() working well these days?
> >> 
> >
> > Hmm, I just tried the trivial patch below, which seemed to do the right thing.
> > Needs a little more investigation, but that might actually be the correct
> > solution. I thought that at some point __builtin_unreachable() was the same
> > as "do {} while (1)", but this is not the case with the gcc I was using --
> > it just tells gcc that we don't expect to ever get here.
> 
> Yes.
> 
> We already have this abstracted in compiler.h as the macro unreachable,
> so the slight modification of your patch below should handle this case.
> 
> For compilers without __builtin_unreachable() unreachable() expands to
> do {} while(1) but an infinite loop seems reasonable and preserves the
> semantics of the code, unlike the current noop that is do {} while(0).

Semantics of the code really don't come in to it if you use unreachable().
unreachable() is an effective do { } while (0) to the compiler.  It just
doesn't warn about it anymore.  It's actually worse than that - it's
permission to the compiler to just stop considering flow control at that
point and do anything it likes with the following instruction slot.

What __builtin_unreachable() means to the compiler is "we will *never*
get here".  That isn't the case for BUG() - BUG() means "we hope that
we will never get here, but we might, and if we do your data is in
grave danger."

We should either have something at that point (like a call to a function
which panics) or remove the ability to turn off CONFIG_BUG and anyone who
cares about kernel size needs to come up with a single trapping
instruction BUG() implementation.

From - Thu Nov 08 21:09:19 2018
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Subject: Re: [PATCH] arch: configuration, deleting 'CONFIG_BUG' since always
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On 05/23/2013 06:04 PM, Russell King - ARM Linux wrote:
> So, if you want to use this, then you should update the CONFIG_BUG text
> to include a warning to this effect:
> 
>      Warning: if CONFIG_BUG is turned off, and control flow reaches
>      a BUG(), the system behaviour will be undefined.
> 
> so that people can make an informed choice about this, because at the
> moment:
> 
>           Disabling this option eliminates support for BUG and WARN, reducing
>           the size of your kernel image and potentially quietly ignoring
>           numerous fatal conditions. You should only consider disabling this
>           option for embedded systems with no facilities for reporting errors.
>           Just say Y.
> 
> will become completely misleading.  Turning this option off will _not_
> result in "quietly ignoring numerous fatal conditions".
> 
> And I come back to one of my previous arguments - is it not better to
> panic() if we hit one of these conditions so that the system can try to
> do a panic-reboot rather than continue blindly into the unknown?

But I still suggest to delete CONFIG_BUG in common kernel.

Since currently, disable 'CONFIG_BUG' is not a common features (most of
architectures are always enable it), it is only belongs to some
architectures specific features (may some embedded systems).

It is not suitable to still let 'CONFIG_BUG' exist in
"asm-generic/bug.h" which is only for common features.

And each architecture can customize their own BUG(), if one architecture
wants to Disabling this option, let it specify its own BUG().

So, most of architectures need not consider this issue again.


Thanks.
-- 
Chen Gang

Asianux Corporation

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From: Arnd Bergmann <arnd@arndb.de>
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Subject: Re: [PATCH] arch: configuration,
 deleting 'CONFIG_BUG' since always need it.
Date: Thu, 23 May 2013 12:59:43 +0200
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
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To: "Russell King - ARM Linux" <linux@arm.linux.org.uk>
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On Thursday 23 May 2013, Russell King - ARM Linux wrote:
> So, if you want to use this, then you should update the CONFIG_BUG text
> to include a warning to this effect:
> 
>      Warning: if CONFIG_BUG is turned off, and control flow reaches
>      a BUG(), the system behaviour will be undefined.
> 
> so that people can make an informed choice about this, because at the
> moment:
> 
>           Disabling this option eliminates support for BUG and WARN, reducing
>           the size of your kernel image and potentially quietly ignoring
>           numerous fatal conditions. You should only consider disabling this
>           option for embedded systems with no facilities for reporting errors.
>           Just say Y.
> 
> will become completely misleading.  Turning this option off will not
> result in "quietly ignoring numerous fatal conditions".

I must be missing something, to me the two descriptions mean the same thing.

> And I come back to one of my previous arguments - is it not better to
> panic() if we hit one of these conditions so that the system can try to
> do a panic-reboot rather than continue blindly into the unknown?

I think this all comes from the 'linux-tiny' project that tried to squeeze
out the last bits of kernel object code size at some point. The idea was
that if you have code like

	BUG_ON(something_unexpected_happened());

or

	switch (my_enum) {
	case FOO:
		return f1();
	case BAR:
		return f2();
	default:
		BUG();
	}

You don't just want to avoid the code for printing the bug message and
the invalid instruction, we also want the compiler to not emit the 
function call or check the enum for unexpected values. The meaning of
BUG() is really that person writing that statement was sure it cannot
happen unless there is a bug in the kernel, which has likely already
corrupted data. Printing a diagnostic at this point is nice if someone
is there to look at it, but letting the kernel do further actions that
may be undefined is not going to make things worse.

	Arnd

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Subject: Re: [PATCH] arch: configuration,
 deleting 'CONFIG_BUG' since always need it.
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To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
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On 05/23/2013 06:59 PM, Arnd Bergmann wrote:
> You don't just want to avoid the code for printing the bug message and
> the invalid instruction, we also want the compiler to not emit the 
> function call or check the enum for unexpected values. The meaning of
> BUG() is really that person writing that statement was sure it cannot
> happen unless there is a bug in the kernel, which has likely already
> corrupted data. Printing a diagnostic at this point is nice if someone
> is there to look at it, but letting the kernel do further actions that
> may be undefined is not going to make things worse.

So I think neither unreachable() nor panic() are suitable for this
condition.

I guess 'CONFIG_BUG' is not belong to common features, now (and in the
future), so it is not suitable still exist in "asm-generic/bug.h", need
remove it firstly.

And then let the specific architectures to implement their own BUG(), if
they want some special features.

SO most of arches can skip this issue.


Thanks.
-- 
Chen Gang

Asianux Corporation

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From: Russell King - ARM Linux <linux@arm.linux.org.uk>
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Subject: Re: [PATCH] arch: configuration, deleting 'CONFIG_BUG' since
 always need it.
Date: Thu, 23 May 2013 12:24:01 +0100
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
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 the arch/x86 maintainers <x86@kernel.org>,
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 Frederic Weisbecker <fweisbec@gmail.com>,
 Paul McKenney <paulmck@linux.vnet.ibm.com>,
 =?iso-8859-1?Q?H=E5vard?= Skinnemoen <hskinnemoen@gmail.com>,
 Ser
To: Arnd Bergmann <arnd@arndb.de>
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On Thu, May 23, 2013 at 12:59:43PM +0200, Arnd Bergmann wrote:
> On Thursday 23 May 2013, Russell King - ARM Linux wrote:
> > So, if you want to use this, then you should update the CONFIG_BUG text
> > to include a warning to this effect:
> > 
> >      Warning: if CONFIG_BUG is turned off, and control flow reaches
> >      a BUG(), the system behaviour will be undefined.
> > 
> > so that people can make an informed choice about this, because at the
> > moment:
> > 
> >           Disabling this option eliminates support for BUG and WARN, reducing
> >           the size of your kernel image and potentially quietly ignoring
> >           numerous fatal conditions. You should only consider disabling this
> >           option for embedded systems with no facilities for reporting errors.
> >           Just say Y.
> > 
> > will become completely misleading.  Turning this option off will not
> > result in "quietly ignoring numerous fatal conditions".
> 
> I must be missing something, to me the two descriptions mean the same thing.

To me, the current text suggests that we still detect the fatal condition
but the code continues to execute in a manner controlled by the program.

The latter is uncontrolled code (or data) execution in ways unspecified
by the program.

> You don't just want to avoid the code for printing the bug message and
> the invalid instruction, we also want the compiler to not emit the 
> function call or check the enum for unexpected values. The meaning of
> BUG() is really that person writing that statement was sure it cannot
> happen unless there is a bug in the kernel, which has likely already
> corrupted data. Printing a diagnostic at this point is nice if someone
> is there to look at it, but letting the kernel do further actions that
> may be undefined is not going to make things worse.

I'm not talking about printing a diagnostic.  I'm talking about the CPU
remaining under the control of the program it is running - that being
the Linux kernel.

With CONFIG_BUG unset, turning on things like reboot-on-panic and such
like is worthless.  Arguably even is having a hardware watchdog - because
even if you hit one of these BUG() conditions where the CPU goes off and
does its own thing, it might be sufficient that the system is still able
to take care of the watchdog.

This is the problem you guys are missing - unreachable() means "we lose
control of the CPU at this point".

If you have an embedded system and you've taken out all the printk()
stuff, you most certainly want the system to do _something_ if you hit
an unexpected condition.

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Subject: Re: [PATCH] arch: configuration,
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On Thursday 23 May 2013, Russell King - ARM Linux wrote:
> This is the problem you guys are missing - unreachable() means "we lose
> control of the CPU at this point".

I'm absolutely aware of this. Again, the current behaviour of doing nothing
at all isn't very different from undefined behavior when you get when you
get to the end of a function returning a pointer without a "return" statement,
or when you return from a function that has determined that it is not safe
to continue.

> If you have an embedded system and you've taken out all the printk()
> stuff, you most certainly want the system to do something if you hit
> an unexpected condition.

I did not claim that it was a good idea to disable BUG(), all I said is
that "random stuff may happen" is probably what Matt Mackall had in mind when
he introduced the option.

	Arnd

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From: Russell King - ARM Linux <linux@arm.linux.org.uk>
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Subject: Re: [PATCH] arch: configuration, deleting 'CONFIG_BUG' since
 always need it.
Date: Thu, 23 May 2013 13:50:33 +0100
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
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 Paul McKenney <paulmck@linux.vnet.ibm.com>,
 =?iso-8859-1?Q?H=E5vard?= Skinnemoen <hskinnemoen@gmail.com>,
 Ser
To: Arnd Bergmann <arnd@arndb.de>
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On Thu, May 23, 2013 at 02:09:02PM +0200, Arnd Bergmann wrote:
> On Thursday 23 May 2013, Russell King - ARM Linux wrote:
> > This is the problem you guys are missing - unreachable() means "we lose
> > control of the CPU at this point".
> 
> I'm absolutely aware of this. Again, the current behaviour of doing nothing
> at all isn't very different from undefined behavior when you get when you
> get to the end of a function returning a pointer without a "return" statement,
> or when you return from a function that has determined that it is not safe
> to continue.

Running off the end of a function like that is a different kettle of fish.
The execution path is still as the compiler intends - what isn't is that
the data returned is likely to be random trash.

That's _quite_ different from the CPU starting to execute the contents
of a literal data pool.

From - Thu Nov 08 21:09:19 2018
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Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.hexagon
Subject: Re: [PATCH] arch: configuration, deleting 'CONFIG_BUG' since always
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
 Linux-sh list <linux-sh@vger.kernel.org>, Chen Gang <gang.chen@asianux.com>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
 "paulus@samba.org" <paulus@samba.org>, "H. Peter Anvin" <hpa@zytor.com>,
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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On Thu, May 23, 2013 at 2:50 PM, Russell King - ARM Linux
<linux@arm.linux.org.uk> wrote:
> On Thu, May 23, 2013 at 02:09:02PM +0200, Arnd Bergmann wrote:
>> On Thursday 23 May 2013, Russell King - ARM Linux wrote:
>> > This is the problem you guys are missing - unreachable() means "we lose
>> > control of the CPU at this point".
>>
>> I'm absolutely aware of this. Again, the current behaviour of doing nothing
>> at all isn't very different from undefined behavior when you get when you
>> get to the end of a function returning a pointer without a "return" statement,
>> or when you return from a function that has determined that it is not safe
>> to continue.
>
> Running off the end of a function like that is a different kettle of fish.
> The execution path is still as the compiler intends - what isn't is that
> the data returned is likely to be random trash.
>
> That's _quite_ different from the CPU starting to execute the contents
> of a literal data pool.

I agree it's best to e.g. trap and reboot.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

From - Thu Nov 08 21:09:19 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix irq stack on UP and SMP
Date: Thu, 23 May 2013 23:52:50 +0200
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To: linux-parisc@vger.kernel.org,
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The logic to detect if the irq stack was already in use with
raw_spin_trylock() is wrong, because it will generate a "trylock failure
on UP" error message with CONFIG_SMP=n and CONFIG_DEBUG_SPINLOCK=y.

arch_spin_trylock() can't be used either since in the CONFIG_SMP=n case
no atomic protection is given and we are reentrant here.

Now we will use a mutex instead, which is safe on UP and SMP.

Counting how often the irq stack was used is pretty useless, so just
drop this piece of code.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index 4c6dd8d..241c345 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -17,13 +17,8 @@
 
 typedef struct {
 	unsigned int __softirq_pending;
-#ifdef CONFIG_DEBUG_STACKOVERFLOW
 	unsigned int kernel_stack_usage;
-#ifdef CONFIG_IRQSTACKS
 	unsigned int irq_stack_usage;
-	unsigned int irq_stack_counter;
-#endif
-#endif
 #ifdef CONFIG_SMP
 	unsigned int irq_resched_count;
 	unsigned int irq_call_count;
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index cfbc439..cc2290a 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -17,7 +17,6 @@
 #include <asm/ptrace.h>
 #include <asm/types.h>
 #include <asm/percpu.h>
-
 #endif /* __ASSEMBLY__ */
 
 /*
@@ -59,26 +58,6 @@
 #ifndef __ASSEMBLY__
 
 /*
- * IRQ STACK - used for irq handler
- */
-#ifdef __KERNEL__
-
-#include <linux/spinlock_types.h>
-
-#define IRQ_STACK_SIZE      (4096 << 2) /* 16k irq stack size */
-
-union irq_stack_union {
-	unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
-	raw_spinlock_t lock;
-};
-
-DECLARE_PER_CPU(union irq_stack_union, irq_stack_union);
-
-void call_on_stack(unsigned long p1, void *func, unsigned long new_stack);
-
-#endif /* __KERNEL__ */
-
-/*
  * Data detected about CPUs at boot time which is the same for all CPU's.
  * HP boxes are SMP - ie identical processors.
  *
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 9c2d953..88ba8a8 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -27,7 +27,7 @@
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
 #include <linux/seq_file.h>
-#include <linux/spinlock.h>
+#include <linux/mutex.h>
 #include <linux/types.h>
 #include <asm/io.h>
 
@@ -172,10 +172,6 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_stack_usage);
 	seq_puts(p, "  Interrupt stack usage\n");
-	seq_printf(p, "%*s: ", prec, "ISC");
-	for_each_online_cpu(j)
-		seq_printf(p, "%10u ", irq_stats(j)->irq_stack_counter);
-	seq_puts(p, "  Interrupt stack usage counter\n");
 # endif
 #endif
 #ifdef CONFIG_SMP
@@ -384,6 +380,23 @@ static inline int eirr_to_irq(unsigned long eirr)
 	return (BITS_PER_LONG - bit) + TIMER_IRQ;
 }
 
+#ifdef CONFIG_IRQSTACKS
+/*
+ * IRQ STACK - used for irq handler
+ */
+#define IRQ_STACK_SIZE      (4096 << 2) /* 16k irq stack size */
+
+union irq_stack_union {
+	unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
+	struct mutex lock;
+};
+
+DEFINE_PER_CPU(union irq_stack_union, irq_stack_union) = {
+		.lock = __MUTEX_INITIALIZER(irq_stack_union.lock),
+	};
+#endif
+
+
 int sysctl_panic_on_stackoverflow = 1;
 
 static inline void stack_overflow_check(struct pt_regs *regs)
@@ -450,15 +463,14 @@ panic_check:
 }
 
 #ifdef CONFIG_IRQSTACKS
-DEFINE_PER_CPU(union irq_stack_union, irq_stack_union) = {
-		.lock = __RAW_SPIN_LOCK_UNLOCKED((irq_stack_union).lock)
-	};
+/* in entry.S: */
+void call_on_stack(unsigned long p1, void *func, unsigned long new_stack);
 
 static void execute_on_irq_stack(void *func, unsigned long param1)
 {
 	union irq_stack_union *union_ptr;
 	unsigned long irq_stack;
-	raw_spinlock_t *irq_stack_in_use;
+	struct mutex *irq_stack_in_use;
 
 	union_ptr = &per_cpu(irq_stack_union, smp_processor_id());
 	irq_stack = (unsigned long) &union_ptr->stack;
@@ -470,7 +482,7 @@ static void execute_on_irq_stack(void *func, unsigned long param1)
 	 * the irq stack usage.
 	 */
 	irq_stack_in_use = &union_ptr->lock;
-	if (!raw_spin_trylock(irq_stack_in_use)) {
+	if (!mutex_trylock(irq_stack_in_use)) {
 		void (*direct_call)(unsigned long p1) = func;
 
 		/* We are using the IRQ stack already.
@@ -482,10 +494,8 @@ static void execute_on_irq_stack(void *func, unsigned long param1)
 	/* This is where we switch to the IRQ stack. */
 	call_on_stack(param1, func, irq_stack);
 
-	__inc_irq_stat(irq_stack_counter);

From - Thu Nov 08 21:09:19 2018
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From: Chen Gang <gang.chen@asianux.com>
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Subject: Re: [PATCH] arch: configuration, deleting 'CONFIG_BUG' since always
 need it.
Date: Fri, 24 May 2013 10:13:35 +0800
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
 Linux-sh list <linux-sh@vger.kernel.org>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
 "paulus@samba.org" <paulus@samba.org>, "H. Peter Anvin" <hpa@zytor.com>,
 Michel Lespinasse <walken@google.com>,
 Hans-Christian Egtvedt <egtvedt@samfundet.no>,
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 Yoshinori Sato <ysato@users.sourceforge.jp>,
 Richard Weinberger <richard@nod.at>, Helge Deller <deller@gmx.de>,
 the arch/x86 maintainers <x86@kernel.org>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 "mingo@redhat.com" <mingo@redhat.com>,
 Frederic Weisbecker <fweisbec@gmail.com>,
 Paul McKenney <paulmck@linux.vnet.ibm.com>,
 =?UTF-8?B?SMOldmFyZCBTa2lubmVtb2Vu?= <hskinnemoen@gmail.com>,
 Serge Hallyn <serge.hall
To: Geert Uytterhoeven <geert@linux-m68k.org>
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On 05/23/2013 10:10 PM, Geert Uytterhoeven wrote:
> On Thu, May 23, 2013 at 2:50 PM, Russell King - ARM Linux
> <linux@arm.linux.org.uk> wrote:
>> > On Thu, May 23, 2013 at 02:09:02PM +0200, Arnd Bergmann wrote:
>>> >> On Thursday 23 May 2013, Russell King - ARM Linux wrote:
>>>> >> > This is the problem you guys are missing - unreachable() means "we lose
>>>> >> > control of the CPU at this point".
>>> >>
>>> >> I'm absolutely aware of this. Again, the current behaviour of doing nothing
>>> >> at all isn't very different from undefined behavior when you get when you
>>> >> get to the end of a function returning a pointer without a "return" statement,
>>> >> or when you return from a function that has determined that it is not safe
>>> >> to continue.
>> >
>> > Running off the end of a function like that is a different kettle of fish.
>> > The execution path is still as the compiler intends - what isn't is that
>> > the data returned is likely to be random trash.
>> >
>> > That's _quite_ different from the CPU starting to execute the contents
>> > of a literal data pool.
> I agree it's best to e.g. trap and reboot.

After read the arch/*/include/asm/bug.h,

It seems panic() is not suitable for NOMMU platforms (only m68k use it,
also need CONFIG_BUG and CONFIG_SUN3 enabled).

And unreachable() is need followed with an asm inline instruction (arm,
x86, powerpc mips...).

And __builtin_trap() is "the mechanism used may vary from release to
release so should not rely on any particular implementation" (ref to
"http://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html", used by m68k,
sparc, ia64).

I can not find any *trap*() and *unreachable*() in "include/asm-generic/"

I can not find any suitable implementation which 'generic' enough to add
in "include/asm-generic/" (and in fact, CONFIG_BUG itself is not
'generic' enough to be in "include/asm-generic/").


At last, I still suggest to delete CONFIG_BUG, so most of architectures
can skip this issue firstly.

Then for specific architectures, also can get 3 benefits:

a. the related maintainers can implement it as their own willing (not
need discus it with another platform maintainers again);

b. the related maintainers can free use the platform specific features
(which can not be used in "include/asm-generic/");

c. the related maintainers are more familiar their own architectures
demands and requirements.



----------- arch/m68k/include/asm/bug.h --------------------------------

  1 #ifndef _M68K_BUG_H
  2 #define _M68K_BUG_H
  3
  4 #ifdef CONFIG_MMU
  5 #ifdef CONFIG_BUG
  6 #ifdef CONFIG_DEBUG_BUGVERBOSE
  7 #ifndef CONFIG_SUN3
  8 #define BUG() do { \
  9         printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
 10         __builtin_trap(); \
 11 } while (0)
 12 #else
 13 #define BUG() do { \
 14         printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
 15         panic("BUG!"); \
 16 } while (0)
 17 #endif
 18 #else
 19 #define BUG() do { \
 20         __builtin_trap(); \
 21 } while (0)
 22 #endif
 23
 24 #define HAVE_ARCH_BUG
 25 #endif
 26 #endif /* CONFIG_MMU */
 27
 28 #include <asm-generic/bug.h>
 29
 30 #endif




Thanks.
-- 
Chen Gang

Asianux Corporation

From - Thu Nov 08 21:09:19 2018
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From: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH v2 0/4] dma-mapping: Define dma_{alloc,free}_attrs() for
 all archs
Date: Fri, 24 May 2013 11:52:22 +0900
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Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
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To: Catalin Marinas <catalin.marinas@arm.com>
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On 2013/05/23 18:47, Catalin Marinas wrote:
> On Thu, May 23, 2013 at 03:47:13AM +0100, Damian Hobson-Garcia wrote:
>> Hi Catalin,
>> On 2013/05/22 18:47, Catalin Marinas wrote:
>>> On Wed, May 22, 2013 at 03:37:17AM +0100, Damian Hobson-Garcia wrote:
>>>> Hello,
>>>> On 2013/04/30 12:01, Damian Hobson-Garcia wrote:
>>>>> Most architectures that define CONFIG_HAVE_DMA=y, have implementations for
>>>>> both dma_alloc_attrs() and dma_free_attrs().  All achitectures that do
>>>>> not define CONFIG_HAVE_DMA also have both of these definitions provided by
>>>>> dma-mapping-broken.h.
>>>
>>> BTW, shouldn't this be called CONFIG_HAVE_DMA_ATTRS?
>>
>> CONFIG_HAVE_DMA_ATTRS is currently used to enable the functions to
>> set/get the DMA attribute values. Poking through the headers, it looks
>> like the struct dma_attrs is defined regardless of the
>> CONFIG_HAVE_DMA_ATTRS setting, so in that respect
>> we always seem to "have" DMA attributes (if we have DMA), but they may
>> not always be meaningful (ie. set to some value).
> 
> My point was about the commit log - grep'ing the kernel for
> CONFIG_HAVE_DMA did not return anything.
> 

Oh yes, my mistake.  It should be CONFIG_HAS_DMA instead of
CONFIG_HAVE_DMA.  I'll update it.

Damian


-- 
Damian Hobson-Garcia
IGEL Co.,Ltd
http://www.igel.co.jp

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From: Chen Gang <gang.chen@asianux.com>
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Subject: Re: [PATCH] arch: configuration, deleting 'CONFIG_BUG' since always
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
 Linux-sh list <linux-sh@vger.kernel.org>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
 "paulus@samba.org" <paulus@samba.org>, "H. Peter Anvin" <hpa@zytor.com>,
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 the arch/x86 maintainers <x86@kernel.org>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 "mingo@redhat.com" <mingo@redhat.com>,
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 =?UTF-8?B?SMOldmFyZCBTa2lubmVtb2Vu?= <hskinnemoen@gmail.com>,
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On 05/24/2013 10:13 AM, Chen Gang wrote:
> On 05/23/2013 10:10 PM, Geert Uytterhoeven wrote:
>> On Thu, May 23, 2013 at 2:50 PM, Russell King - ARM Linux
>> <linux@arm.linux.org.uk> wrote:
>>>> On Thu, May 23, 2013 at 02:09:02PM +0200, Arnd Bergmann wrote:
>>>>>> On Thursday 23 May 2013, Russell King - ARM Linux wrote:
>>>>>>>> This is the problem you guys are missing - unreachable() means "we lose
>>>>>>>> control of the CPU at this point".
>>>>>>
>>>>>> I'm absolutely aware of this. Again, the current behaviour of doing nothing
>>>>>> at all isn't very different from undefined behavior when you get when you
>>>>>> get to the end of a function returning a pointer without a "return" statement,
>>>>>> or when you return from a function that has determined that it is not safe
>>>>>> to continue.
>>>>
>>>> Running off the end of a function like that is a different kettle of fish.
>>>> The execution path is still as the compiler intends - what isn't is that
>>>> the data returned is likely to be random trash.
>>>>
>>>> That's _quite_ different from the CPU starting to execute the contents
>>>> of a literal data pool.
>> I agree it's best to e.g. trap and reboot.
> 

In fact: if enable CONFIG_BUG, but not enable HAVE_ARCH_BUG, the
default implementation is:

 47 #ifndef HAVE_ARCH_BUG
 48 #define BUG() do { \
 49         printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
 50         panic("BUG!"); \
 51 } while (0)
 52 #endif

So if we delete CONFIG_BUG, the default implementation will be almost
like panic(),  and in panic() itself, also calls printk() !!

So...

:-)



> After read the arch/*/include/asm/bug.h,
> 
> It seems panic() is not suitable for NOMMU platforms (only m68k use it,
> also need CONFIG_BUG and CONFIG_SUN3 enabled).
> 
> And unreachable() is need followed with an asm inline instruction (arm,
> x86, powerpc mips...).
> 
> And __builtin_trap() is "the mechanism used may vary from release to
> release so should not rely on any particular implementation" (ref to
> "http://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html", used by m68k,
> sparc, ia64).
> 
> I can not find any *trap*() and *unreachable*() in "include/asm-generic/"
> 
> I can not find any suitable implementation which 'generic' enough to add
> in "include/asm-generic/" (and in fact, CONFIG_BUG itself is not
> 'generic' enough to be in "include/asm-generic/").
> 
> 
> At last, I still suggest to delete CONFIG_BUG, so most of architectures
> can skip this issue firstly.
> 
> Then for specific architectures, also can get 3 benefits:
> 
> a. the related maintainers can implement it as their own willing (not
> need discus it with another platform maintainers again);
> 
> b. the related maintainers can free use the platform specific features
> (which can not be used in "include/asm-generic/");
> 
> c. the related maintainers are more familiar their own architectures
> demands and requirements.
> 
> 
> 
> ----------- arch/m68k/include/asm/bug.h --------------------------------
> 
>   1 #ifndef _M68K_BUG_H
>   2 #define _M68K_BUG_H
>   3
>   4 #ifdef CONFIG_MMU
>   5 #ifdef CONFIG_BUG
>   6 #ifdef CONFIG_DEBUG_BUGVERBOSE
>   7 #ifndef CONFIG_SUN3
>   8 #define BUG() do { \
>   9         printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
>  10         __builtin_trap(); \
>  11 } while (0)
>  12 #else
>  13 #define BUG() do { \
>  14         printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
>  15         panic("BUG!"); \
>  16 } while (0)
>  17 #endif
>  18 #else
>  19 #define BUG() do { \
>  20         __builtin_trap(); \
>  21 } while (0)
>  22 #endif
>  23
>  24 #define HAVE_ARCH_BUG
>  25 #endif
>  26 #endif /* CONFIG_MMU */
>  27
>  28 #include <asm-generic/bug.h>
>  29
>  30 #endif
> 
> 
> 
> 
> Thanks.
> 


-- 
Chen Gang

Asianux Corporation

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Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] arch: configuration,
 deleting 'CONFIG_BUG' since always need it.
Date: Thu, 23 May 2013 22:59:55 -0700
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>, linux-sh@vger.kernel.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>, heiko.carstens@de.ibm.com,
 "paulus@samba.org" <paulus@samba.org>, hpa@zytor.com, walken@google.com,
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Chen Gang <gang.chen@asianux.com> writes:

> The crazy user can unset 'CONFIG_BUG' in menuconfig: "> General setup >
> Configure standard kernel features (expert users) > BUG() Support".
>
> But in fact, we always need it, and quite a few of architectures have
> already implemented it (e.g. alpha, arc, arm, avr32, blackfin, cris,
> frv, ia64, m68k, mips, mn10300, parisc, powerpc, s390, sh, sparc, x86).
>
> And kernel also already has prepared a default effective implementation
> for the architectures which is unwilling to implement it by themselves
> (e.g. arm64, c6x, h8300, hexagon, m32r, metag, microblaze, openrisc,
> score, tile, um, unicore32, xtensa).
>
> So need get rid of 'CONFIG_BUG', and let it always enabled everywhere.


This looks like the right way to handle this to me.  If the BUG
annotations are too big and not needed they should simply be deleted
from the code base.  Disabling CONFIG_BUG which removes the BUG
annotations from the binaries without modifying the source code seems
like the wrong approach.

Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix irq stack on UP and SMP
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The logic to detect if the irq stack was already in use with
raw_spin_trylock() is wrong, because it will generate a "trylock failure
on UP" error message with CONFIG_SMP=n and CONFIG_DEBUG_SPINLOCK=y.
 
arch_spin_trylock() can't be used either since in the CONFIG_SMP=n case
no atomic protection is given and we are reentrant here. A mutex didn't
worked either and brings more overhead by turning off interrupts.

So, let's use the fastest path for parisc which is the ldcw instruction. 
 
Counting how often the irq stack was used is pretty useless, so just
drop this piece of code.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index 4c6dd8d..241c345 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -17,13 +17,8 @@
 
 typedef struct {
 	unsigned int __softirq_pending;
-#ifdef CONFIG_DEBUG_STACKOVERFLOW
 	unsigned int kernel_stack_usage;
-#ifdef CONFIG_IRQSTACKS
 	unsigned int irq_stack_usage;
-	unsigned int irq_stack_counter;
-#endif
-#endif
 #ifdef CONFIG_SMP
 	unsigned int irq_resched_count;
 	unsigned int irq_call_count;
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index cfbc439..cc2290a 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -17,7 +17,6 @@
 #include <asm/ptrace.h>
 #include <asm/types.h>
 #include <asm/percpu.h>
-
 #endif /* __ASSEMBLY__ */
 
 /*
@@ -59,26 +58,6 @@
 #ifndef __ASSEMBLY__
 
 /*
- * IRQ STACK - used for irq handler
- */
-#ifdef __KERNEL__
-
-#include <linux/spinlock_types.h>
-
-#define IRQ_STACK_SIZE      (4096 << 2) /* 16k irq stack size */
-
-union irq_stack_union {
-	unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
-	raw_spinlock_t lock;
-};
-
-DECLARE_PER_CPU(union irq_stack_union, irq_stack_union);
-
-void call_on_stack(unsigned long p1, void *func, unsigned long new_stack);
-
-#endif /* __KERNEL__ */
-
-/*
  * Data detected about CPUs at boot time which is the same for all CPU's.
  * HP boxes are SMP - ie identical processors.
  *
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 9c2d953..2e6443b 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -27,11 +27,11 @@
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
 #include <linux/seq_file.h>
-#include <linux/spinlock.h>
 #include <linux/types.h>
 #include <asm/io.h>
 
 #include <asm/smp.h>
+#include <asm/ldcw.h>
 
 #undef PARISC_IRQ_CR16_COUNTS
 
@@ -172,10 +172,6 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_stack_usage);
 	seq_puts(p, "  Interrupt stack usage\n");
-	seq_printf(p, "%*s: ", prec, "ISC");
-	for_each_online_cpu(j)
-		seq_printf(p, "%10u ", irq_stats(j)->irq_stack_counter);
-	seq_puts(p, "  Interrupt stack usage counter\n");
 # endif
 #endif
 #ifdef CONFIG_SMP
@@ -384,6 +380,24 @@ static inline int eirr_to_irq(unsigned long eirr)
 	return (BITS_PER_LONG - bit) + TIMER_IRQ;
 }
 
+#ifdef CONFIG_IRQSTACKS
+/*
+ * IRQ STACK - used for irq handler
+ */
+#define IRQ_STACK_SIZE      (4096 << 2) /* 16k irq stack size */
+
+union irq_stack_union {
+	unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
+	volatile unsigned int slock[4];
+	volatile unsigned int lock[1];
+};
+
+DEFINE_PER_CPU(union irq_stack_union, irq_stack_union) = {
+		.slock = { 1,1,1,1 },
+	};
+#endif
+
+
 int sysctl_panic_on_stackoverflow = 1;
 
 static inline void stack_overflow_check(struct pt_regs *regs)
@@ -450,27 +464,26 @@ panic_check:
 }
 
 #ifdef CONFIG_IRQSTACKS
-DEFINE_PER_CPU(union irq_stack_union, irq_stack_union) = {
-		.lock = __RAW_SPIN_LOCK_UNLOCKED((irq_stack_union).lock)
-	};
+/* in entry.S: */
+void call_on_stack(unsigned long p1, void *func, unsigned long new_stack);
 
 static void execute_on_irq_stack(void *func, unsigned long param1)
 {
 	union irq_stack_union *union_ptr;
 	unsigned long irq_stack;
-	raw_spinlock_t *irq_stack_in_use;
+	volatile unsigned int *irq_stack_in_use;
 
 	union_ptr = &per_cpu(irq_stack_union, smp_processor_id());
 	irq_stack = (unsigned long) &union_ptr->stack;
-	irq_stack = ALIGN(irq_stack + sizeof(irq_stack_union.lock),
+	irq_stack = ALIGN(irq_stack + sizeof(irq_stack_union.slock),
 			 64); /* align for stack frame usage */
 
 	/* We may be called recursive. If we are already using the irq stack,
 	 * just continue to use it. Use spinlocks to serialize
 	 * the irq stack usage.
 	 */
-	irq_stack_in_use = &union_ptr->lock;
-	if (!raw_spin_trylock(irq_stack_in_use)) {
+	irq_stack_in_use = (volatile unsigned int *)__ldcw_align(union_ptr);
+	if (!__ldcw(irq_stack_in_use)) {
 		void (*direct_call)(unsigned long p1) = func;
 
 		/* We are using the IRQ stack already.
@@ -482,10 +495,8 @@ static void execute_on_irq_stack(void *func, unsigned long param1)
 	/* This is where we switch to the IRQ stack. */
 	call_on_stack(param1, func, irq_stack);
 
-	__inc_irq_stat(irq_stack_counter);

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Subject: stifb broken on PCI - was: Upgrade woes - was Re: install/update/upgrade
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On 05/24/2013 02:51 AM, John David Anglin wrote:
> On 23-May-13, at 8:36 PM, Dave Land wrote:
> 
>> May 23 10:48:21 hpviz kernel: [    1.880000] STI GSC/PCI core graphics driver V$
>> May 23 10:48:21 hpviz kernel: [    1.880000] sti 0000:01:01.0: enabling SERR an$
>> May 23 10:48:21 hpviz kernel: [    1.884000] STI PCI graphic ROM found at fffff$
>> *May 23 10:48:21 hpviz kernel: [    1.952000] Unable to handle STI device '0000:$*
> 
> 
> This is exactly the problem that I see.

Me too :-(

On my 32bit "old" parisc machine 715/64 with GSC bus it still works.

But on all my PCI machines it fails the same way.
Same result as Dave: pdc_add_valid() returns error.

For me it seems something has changed wrt PCI.

I tried to debug it somewhat, but I have no clue.
Maybe this commit is somewhat related: ?

commit 39c2462e163448c7df466c7262109ec6a24d5f88
Author: Bjorn Helgaas <bhelgaas@google.com>
Date:   Thu Feb 23 20:19:03 2012 -0700
    parisc/PCI: get rid of device resource fixups
    Tell the PCI core about host bridge address translation so it can take
    care of bus-to-resource conversion for us.

Helge
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From - Thu Nov 08 21:09:20 2018
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Subject: [GIT PULL] parisc fixes for 3.10-rc3
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
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	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi Linus,

please pull the latest parisc architecture fixes.

This time we made the kernel- and interruption stack allocation
reentrant which fixed some strange kernel crashes (specifically
protection ID traps). Furthemore this patchset fixes the interrupt stack
in UP and SMP configurations by using native locking instructions.  And
finally usage of floating point calculations on parisc were disabled in
the MPILIB.

Thanks,
Helge


The following changes since commit 17fdfd0851617b6c18c0913364caf2a54171ce85:

  Merge tag 'trace-fixes-v3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace (2013-05-24 10:46:55 -0700)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-for-3.10

for you to fetch changes up to d96b51ec14650b490ab98e738bcc02309396e5bc:

  parisc: fix irq stack on UP and SMP (2013-05-24 23:29:01 +0200)

----------------------------------------------------------------
Helge Deller (6):
      MPILIB: disable usage of floating point registers on parisc
      parisc: add rp5470 entry to machine database
      parisc: use PAGE_SHIFT instead of hardcoded value 12 in pacache.S
      parisc: add additional parisc git tree to MAINTAINERS file
      parisc: show number of FPE and unaligned access handler calls in /proc/interrupts
      parisc: fix irq stack on UP and SMP

John David Anglin (1):
      parisc: make interrupt and interruption stack allocation reentrant

Peter Huewe (1):
      parisc/superio: Use module_pci_driver to register driver

 MAINTAINERS                         |  1 +
 arch/parisc/include/asm/assembly.h  |  1 -
 arch/parisc/include/asm/hardirq.h   |  7 ++----
 arch/parisc/include/asm/processor.h | 21 ----------------
 arch/parisc/kernel/entry.S          | 19 +++++++-------
 arch/parisc/kernel/hardware.c       |  1 +
 arch/parisc/kernel/irq.c            | 49 +++++++++++++++++++++++++------------
 arch/parisc/kernel/pacache.S        | 12 ++++-----
 arch/parisc/kernel/traps.c          |  1 +
 arch/parisc/kernel/unaligned.c      |  3 +++
 drivers/parisc/superio.c            | 13 +---------
 lib/mpi/longlong.h                  |  5 ++--
 12 files changed, 62 insertions(+), 71 deletions(-)
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From - Thu Nov 08 21:09:20 2018
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From: Chen Gang <gang.chen@asianux.com>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.hexagon
Subject: [PATCH v2] arch: configuration issue, random return value when disable
 'CONFIG_BUG'
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
 Linux-sh list <linux-sh@vger.kernel.org>,
 Peter Zijlstra <peterz@infradead.org>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
 "paulus@samba.org" <paulus@samba.org>, "H. Peter Anvin" <hpa@zytor.com>,
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To: Geert Uytterhoeven <geert@linux-m68k.org>, 
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If user disable 'CONFIG_BUG' in menuconfig, many areas not only will
report compiling warnings, but also may return a random value from the
function when BUG().

In fact, most of architectures need always let 'CONFIG_BUG' enabled, so
'#ifdef CONFIG_BUG' is already not 'generic' enough in "include/asm-
generic/".

Also kernel has already provided the 'generic' implementation in
"include/asm-generic" when 'CONFIG_BUG' enabled. Even if we disable
'CONFIG_BUG', we also shall have to implement the BUG() in "include/asm-
generic", just like when 'CONFIG_BUG' enabled (at least, it is not the
minimal size implementation).

So need remove 'CONFIG_BUG', and let it always enabled everywhere, then
fix this issue.

The architectures which need their own architecture specific features
(e.g. minimal size implementation), can customize their own BUG() and
__WARN_TAINT() to give a better fix (e.g. use one inline asm code, then
followed by 'unreachable' function, or another more better fix ways).


Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 arch/arm/Kconfig          |    1 -
 arch/avr32/Kconfig        |    1 -
 arch/blackfin/Kconfig     |    1 -
 arch/h8300/Kconfig        |    1 -
 arch/hexagon/Kconfig      |    1 -
 arch/parisc/Kconfig       |    2 --
 arch/powerpc/Kconfig      |    1 -
 arch/s390/Kconfig         |    2 +-
 arch/sh/Kconfig           |    2 +-
 arch/um/Kconfig.common    |    1 -
 arch/x86/Kconfig          |    1 -
 include/asm-generic/bug.h |   29 -----------------------------
 init/Kconfig              |   10 ----------
 lib/Kconfig.debug         |    2 +-
 14 files changed, 3 insertions(+), 52 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a7fc5ea..ea4a146 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -265,7 +265,6 @@ config PHYS_OFFSET
 
 config GENERIC_BUG
 	def_bool y
-	depends on BUG
 
 source "init/Kconfig"
 
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index bdc3558..7c9005a 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -55,7 +55,6 @@ config GENERIC_CALIBRATE_DELAY
 
 config GENERIC_BUG
 	def_bool y
-	depends on BUG
 
 source "init/Kconfig"
 
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index a117652..637dc42 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -47,7 +47,6 @@ config GENERIC_CSUM
 
 config GENERIC_BUG
 	def_bool y
-	depends on BUG
 
 config ZONE_DMA
 	def_bool y
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 303e4f9..88848da 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -56,7 +56,6 @@ config GENERIC_CALIBRATE_DELAY
 
 config GENERIC_BUG
         bool
-        depends on BUG
 
 config TIME_LOW_RES
 	bool
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 33a9792..f50cc8f 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -84,7 +84,6 @@ config STACKTRACE_SUPPORT
 
 config GENERIC_BUG
 	def_bool y
-	depends on BUG
 
 menu "Machine selection"
 
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 6507dab..5de1f8c 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -10,7 +10,6 @@ config PARISC
 	select RTC_CLASS
 	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
-	select BUG
 	select HAVE_PERF_EVENTS
 	select GENERIC_ATOMIC64 if !64BIT
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
@@ -62,7 +61,6 @@ config ARCH_HAS_ILOG2_U64
 config GENERIC_BUG
 	bool
 	default y
-	depends on BUG
 
 config GENERIC_HWEIGHT
 	bool
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c33e3ad..34f4ca9 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -187,7 +187,6 @@ config AUDIT_ARCH
 config GENERIC_BUG
 	bool
 	default y
-	depends on BUG
 
 config SYS_SUPPORTS_APM_EMULATION
 	default y if PMAC_APM_EMU
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index da183c5..5d7b3db 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -29,7 +29,7 @@ config GENERIC_HWEIGHT
 	def_bool y
 
 config GENERIC_BUG
-	def_bool y if BUG
+	def_bool y
 
 config GENERIC_BUG_RELATIVE_POINTERS
 	def_bool y
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 8c868cf..d555e7f 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -84,7 +84,7 @@ config RWSEM_XCHGADD_ALGORITHM
 
 config GENERIC_BUG
 	def_bool y
-	depends on BUG && SUPERH32
+	depends on SUPERH32
 
 config GENERIC_CSUM
 	def_bool y
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index bceee66..7aae42a 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -53,7 +53,6 @@ config GENERIC_CALIBRATE_DELAY
 config GENERIC_BUG
 	bool
 	default y
-	depends on BUG
 
 config HZ
 	int
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 723e42e..a36e1b4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -166,7 +166,6 @@ config GENERIC_ISA_DMA
 
 config GENERIC_BUG
 	def_bool y
-	depends on BUG
 	select GENERIC_BUG_RELATIVE_POINTERS if X86_64
 
 config GENERIC_BUG_RELATIVE_POINTERS
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 7d10f96..5d50903 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -12,8 +12,6 @@
 #ifndef __ASSEMBLY__
 #include <linux/kernel.h>
 
-#ifdef CONFIG_BUG
-
 #ifdef CONFIG_GENERIC_BUG
 struct bug_entry {
 #ifndef CONFIG_GENERIC_BUG_RELATIVE_POINTERS
@@ -106,33 +104,6 @@ extern void warn_slowpath_null(const char *file, const int line);
 	unlikely(__ret_warn_on);					\
 })
 
-#else /* !CONFIG_BUG */
-#ifndef HAVE_ARCH_BUG
-#define BUG() do {} while(0)
-#endif
-
-#ifndef HAVE_ARCH_BUG_ON
-#define BUG_ON(condition) do { if (condition) ; } while(0)
-#endif
-
-#ifndef HAVE_ARCH_WARN_ON
-#define WARN_ON(condition) ({						\
-	int __ret_warn_on = !!(condition);				\
-	unlikely(__ret_warn_on);					\
-})
-#endif
-
-#ifndef WARN
-#define WARN(condition, format...) ({					\
-	int __ret_warn_on = !!(condition);				\
-	unlikely(__ret_warn_on);					\
-})
-#endif
-
-#define WARN_TAINT(condition, taint, format...) WARN_ON(condition)
-
-#endif
-
 #define WARN_ON_ONCE(condition)	({				\
 	static bool __section(.data.unlikely) __warned;		\
 	int __ret_warn_once = !!(condition);			\
diff --git a/init/Kconfig b/init/Kconfig
index 7fb26a6..bc1dd49 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1360,16 +1360,6 @@ config PRINTK
 	  very difficult to diagnose system problems, saying N here is
 	  strongly discouraged.
 
-config BUG
-	bool "BUG() support" if EXPERT
-	default y
-	help
-          Disabling this option eliminates support for BUG and WARN, reducing
-          the size of your kernel image and potentially quietly ignoring
-          numerous fatal conditions. You should only consider disabling this
-          option for embedded systems with no facilities for reporting errors.
-          Just say Y.
-
 config ELF_CORE
 	depends on COREDUMP
 	default y
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 566cf2b..54b3251 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -700,7 +700,7 @@ config HAVE_DEBUG_BUGVERBOSE
 
 config DEBUG_BUGVERBOSE
 	bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EXPERT
-	depends on BUG && (GENERIC_BUG || HAVE_DEBUG_BUGVERBOSE)
+	depends on GENERIC_BUG || HAVE_DEBUG_BUGVERBOSE
 	default y
 	help
 	  Say Y here to make BUG() panics output the file name and line number
-- 
1.7.7.6

From - Thu Nov 08 21:09:20 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.next,gmane.linux.kernel
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Hi all,

Today's linux-next merge of the parisc-hd tree got conflicts in
arch/parisc/include/asm/processor.h and arch/parisc/kernel/irq.c between
commit d96b51ec1465 ("parisc: fix irq stack on UP and SMP") from Linus'
tree and commit 1c92ce8487f6 ("parisc: use arch_spinlock_t instead of
raw_spinlock_t in irqstacks") from the parisc-hd tree.

I just used the version of both files from Linus' tree and can carry the
fix as necessary (no action is required).

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

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From - Thu Nov 08 21:09:20 2018
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Subject: [PATCH] arch: parisc: kernel: memory overflow, 'name' length is too
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'path.bc[i]' can be asigned by PCI_SLOT() which can '> 10', so sizeof(6
* "%u:" + "%u" + '\0') may be 21.

Since 'name' length is 20, it may be memory overflow.

And 'path.bc[i]' is 'unsigned char' for printing, we can be sure the
max length of 'name' must be less than 28.

So simplify thinking, we can use 28 instead of 20 directly, and do not
think of whether 'patchc.bc[i]' can '> 100'.


Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 arch/parisc/kernel/drivers.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 5709c5e..14285ca 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -394,7 +394,7 @@ EXPORT_SYMBOL(print_pci_hwpath);
 static void setup_bus_id(struct parisc_device *padev)
 {
 	struct hardware_path path;
-	char name[20];
+	char name[28];
 	char *output = name;
 	int i;
 
-- 
1.7.7.6
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From: Meelis Roos <mroos@linux.ee>
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I saw that 3.10-rc3 is out with a new bunch of parisc fixes. Tried it on 
my RP3440 and it works - thank you!

Only one new minor problem has appeared: a warning from cpu_idle during 
bootup. Seems harmless but not good. It does not reappear under load - 
I did Gentoo upgrade with
emerge --sync && emerge -u -N world && emerge --depclean
and no further problems.

[    3.132000] sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 21
[    3.136000] sym0: PA-RISC Firmware, ID 7, Fast-80, LVD, parity checking
[    3.168000] sym0: SCSI BUS has been reset.
[    3.176000] scsi0 : sym-2.2.3
[    3.176000] ------------[ cut here ]------------
[    3.176000] WARNING: at kernel/cpu/idle.c:98
[    3.176000] Modules linked in:
[    3.176000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.10.0-rc3 #30
[    3.176000] task: 00000000405ff580 ti: 000000004057e000 task.ti: 000000004057e000

[    3.184000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[    3.184000] PSW: 00001000000001001110100100001110 Not tainted
[    3.192000] r00-03  000000ff0804e90e 00000000406b8210 0000000040174ecc 000000004057e350
[    3.192000] r04-07  00000000406a9210 000000004057e3d0 0000000000000001 00000000405ded3e
[    3.200000] r08-11  0000000000000001 0000000040597c2c 000000000804000e 000000004011407c
[    3.204000] r12-15  0000000000000013 0000000000000000 00000000000130e4 0000000000000000
[    3.204000] r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
[    3.212000] r20-23  0000000000000000 0000000000000002 00000000000000d7 0000000000000001
[    3.220000] r24-27  0000000000000001 000000004057e000 0000000000000000 00000000406a9210
[    3.220000] r28-31  0000000000000000 000000004057e3d0 000000004057e400 0000000000000001
[    3.228000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[    3.236000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

[    3.244000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040174f9c 0000000040174fa0
[    3.244000]  IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000
[    3.248000]  CPU:        0   CR30: 000000004057e000 CR31: fffffff0f0e05ee0
[    3.248000]  ORIG_R28: 000000004016bb90
[    3.260000]  IAOQ[0]: cpu_idle_loop+0x15c/0x170
[    3.260000]  IAOQ[1]: cpu_idle_loop+0x160/0x170
[    3.260000]  RP(r2): cpu_idle_loop+0x8c/0x170
[    3.264000] Backtrace:
[    3.268000]  [<0000000040174ff8>] cpu_startup_entry+0x48/0x50
[    3.268000]  [<000000004010bc40>] rest_init+0xf0/0x108
[    3.276000]  [<00000000406ccd50>] start_kernel+0x550/0x578
[    3.276000]  [<0000000040497560>] packet_ioctl+0x1a0/0x238
[    3.276000]  [<000000004047a540>] ip_mroute_getsockopt+0x88/0x138
[    3.284000]  [<0000000040457fbc>] udp_ioctl+0xcc/0xd8
[    3.284000]  [<0000000040455880>] udp_lib_getsockopt+0x30/0x130
[    3.288000]  [<0000000040452c18>] raw_probe_proto_opt+0x118/0x130

[    3.288000] ---[ end trace c7ab5f13fa5da8f2 ]---

-- 
Meelis Roos (mroos@linux.ee)
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PA-RISC already handled the dummy console screen size selection in Kconfig,
so generalize this to other platforms.

ARM keeps on using screen_info, which is filled in by platform-specific
code, or from ATAGS.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 drivers/video/console/Kconfig    |   16 ++++++++++------
 drivers/video/console/dummycon.c |    5 +----
 2 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index 8af6ad3..7bfe7e1 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -76,18 +76,22 @@ config DUMMY_CONSOLE
 
 config DUMMY_CONSOLE_COLUMNS
         int "Initial number of console screen columns"
-        depends on PARISC && DUMMY_CONSOLE
-        default "160"
+        depends on DUMMY_CONSOLE && !ARM
+        default 160 if PARISC
+        default 80
         help
-          The default value is 160, which should fit a 1280x1024 monitor.
+          On PA-RISC, the default value is 160, which should fit a 1280x1024
+          monitor.
           Select 80 if you use a 640x480 resolution by default.
 
 config DUMMY_CONSOLE_ROWS
         int "Initial number of console screen rows"
-        depends on PARISC && DUMMY_CONSOLE
-        default "64"
+        depends on DUMMY_CONSOLE && !ARM
+        default 64 if PARISC
+        default 25
         help
-          The default value is 64, which should fit a 1280x1024 monitor.
+          On PA-RISC, the default value is 64, which should fit a 1280x1024
+          monitor.
           Select 25 if you use a 640x480 resolution by default.
 
 config FRAMEBUFFER_CONSOLE
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index b63860f..6b1a5d1 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -20,13 +20,10 @@
 #if defined(__arm__)
 #define DUMMY_COLUMNS	screen_info.orig_video_cols
 #define DUMMY_ROWS	screen_info.orig_video_lines
-#elif defined(__hppa__)
+#else
 /* set by Kconfig. Use 80x25 for 640x480 and 160x64 for 1280x1024 */
 #define DUMMY_COLUMNS	CONFIG_DUMMY_CONSOLE_COLUMNS
 #define DUMMY_ROWS	CONFIG_DUMMY_CONSOLE_ROWS
-#else
-#define DUMMY_COLUMNS	80
-#define DUMMY_ROWS	25
 #endif
 
 static const char *dummycon_startup(void)
-- 
1.7.0.4

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From - Thu Nov 08 21:09:20 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: parisc boot crash on 3.10-rc1+git
Date: Mon, 27 May 2013 21:20:50 +0200
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Cc: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
To: Meelis Roos <mroos@linux.ee>, Thomas Gleixner <tglx@linutronix.de>
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On 05/27/2013 09:15 AM, Meelis Roos wrote:
> I saw that 3.10-rc3 is out with a new bunch of parisc fixes. Tried it on
> my RP3440 and it works - thank you!
Thanks. Great!

> Only one new minor problem has appeared: a warning from cpu_idle during
> bootup. Seems harmless but not good. It does not reappear under load -
> I did Gentoo upgrade with
> emerge --sync&&  emerge -u -N world&&  emerge --depclean
> and no further problems.

That's a known problem.
Patch from James Bottomley is here:
https://patchwork.kernel.org/patch/2541701/

@Thomas, it would be great if you could comment on that patch....

Another known problem is, that the sti framebuffer driver currently does 
not work, which means you won't get a graphical login screen....

Helge
> [    3.132000] sym0:<1010-66>  rev 0x1 at pci 0000:20:01.0 irq 21
> [    3.136000] sym0: PA-RISC Firmware, ID 7, Fast-80, LVD, parity checking
> [    3.168000] sym0: SCSI BUS has been reset.
> [    3.176000] scsi0 : sym-2.2.3
> [    3.176000] ------------[ cut here ]------------
> [    3.176000] WARNING: at kernel/cpu/idle.c:98
> [    3.176000] Modules linked in:
> [    3.176000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.10.0-rc3 #30
> [    3.176000] task: 00000000405ff580 ti: 000000004057e000 task.ti: 000000004057e000
>
> [    3.184000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [    3.184000] PSW: 00001000000001001110100100001110 Not tainted
> [    3.192000] r00-03  000000ff0804e90e 00000000406b8210 0000000040174ecc 000000004057e350
> [    3.192000] r04-07  00000000406a9210 000000004057e3d0 0000000000000001 00000000405ded3e
> [    3.200000] r08-11  0000000000000001 0000000040597c2c 000000000804000e 000000004011407c
> [    3.204000] r12-15  0000000000000013 0000000000000000 00000000000130e4 0000000000000000
> [    3.204000] r16-19  00000000f0d00b0c 00000000000130e4 0000000000000000 0000000000000000
> [    3.212000] r20-23  0000000000000000 0000000000000002 00000000000000d7 0000000000000001
> [    3.220000] r24-27  0000000000000001 000000004057e000 0000000000000000 00000000406a9210
> [    3.220000] r28-31  0000000000000000 000000004057e3d0 000000004057e400 0000000000000001
> [    3.228000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> [    3.236000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
>
> [    3.244000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040174f9c 0000000040174fa0
> [    3.244000]  IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000
> [    3.248000]  CPU:        0   CR30: 000000004057e000 CR31: fffffff0f0e05ee0
> [    3.248000]  ORIG_R28: 000000004016bb90
> [    3.260000]  IAOQ[0]: cpu_idle_loop+0x15c/0x170
> [    3.260000]  IAOQ[1]: cpu_idle_loop+0x160/0x170
> [    3.260000]  RP(r2): cpu_idle_loop+0x8c/0x170
> [    3.264000] Backtrace:
> [    3.268000]  [<0000000040174ff8>] cpu_startup_entry+0x48/0x50
> [    3.268000]  [<000000004010bc40>] rest_init+0xf0/0x108
> [    3.276000]  [<00000000406ccd50>] start_kernel+0x550/0x578
> [    3.276000]  [<0000000040497560>] packet_ioctl+0x1a0/0x238
> [    3.276000]  [<000000004047a540>] ip_mroute_getsockopt+0x88/0x138
> [    3.284000]  [<0000000040457fbc>] udp_ioctl+0xcc/0xd8
> [    3.284000]  [<0000000040455880>] udp_lib_getsockopt+0x30/0x130
> [    3.288000]  [<0000000040452c18>] raw_probe_proto_opt+0x118/0x130
>
> [    3.288000] ---[ end trace c7ab5f13fa5da8f2 ]---

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From - Thu Nov 08 21:09:20 2018
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On Tue, 28 May 2013, Geert Uytterhoeven wrote:
> JFYI, when comparing v3.10-rc3 to v3.10-rc2[3], the summaries are:
>   - build errors: +15/-10

Ignoring the PPC64 relocation truncations in powerpc-allyesconfig:

  + error: "__sync_fetch_and_and_4" [drivers/staging/line6/line6usb.ko] undefined!:  => N/A
  + error: "__sync_fetch_and_or_4" [drivers/staging/line6/line6usb.ko] undefined!:  => N/A

parisc-allmodconfig

  + error: "devm_request_threaded_irq" [drivers/i2c/busses/i2c-designware-pci.ko] undefined!:  => N/A
  + error: "devm_request_threaded_irq" [drivers/input/touchscreen/st1232.ko] undefined!:  => N/A
  + error: "devm_request_threaded_irq" [drivers/mfd/si476x-core.ko] undefined!:  => N/A
  + error: "devm_request_threaded_irq" [drivers/net/ethernet/marvell/mvmdio.ko] undefined!:  => N/A
  + error: "devm_request_threaded_irq" [drivers/staging/dwc2/dwc2.ko] undefined!:  => N/A
  + error: "irq_create_mapping" [drivers/mfd/mfd-core.ko] undefined!:  => N/A
  
s390-allmodconfig, s390-allyesconfig

Related warning for the last one:

warning: (ARM_GIC && ARM_VIC && RENESAS_INTC_IRQPIN && RENESAS_IRQC && VERSATILE_FPGA_IRQ && REGMAP && GPIO_LYNXPOINT && GPIO_GRGPIO && GPIO_PCF857X && GPIO_LANGWELL && MFD_CORE && MFD_MAX77686 && MFD_MAX8997 && AB8500_CORE && MFD_LP8788 && MFD_TPS65910 && TWL4030_CORE && MFD_WM831X_I2C && MFD_WM831X_SPI && EXTCON_MAX77693) selects IRQ_DOMAIN which has unmet direct dependencies (HAVE_GENERIC_HARDIRQS)

> [1] http://kisskb.ellerman.id.au/kisskb/head/6268/ (all 120 configs)
> [3] http://kisskb.ellerman.id.au/kisskb/head/6246/ (all 120 configs)

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

From - Thu Nov 08 21:09:20 2018
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Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.hexagon
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
 Linux-sh list <linux-sh@vger.kernel.org>, Chen Gang <gang.chen@asianux.com>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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* Russell King - ARM Linux <linux@arm.linux.org.uk> wrote:

> So, if you want to use this, then you should update the CONFIG_BUG text 
> to include a warning to this effect:
> 
>      Warning: if CONFIG_BUG is turned off, and control flow reaches
>      a BUG(), the system behaviour will be undefined.
> 
> so that people can make an informed choice about this, because at the
> moment:
> 
>           Disabling this option eliminates support for BUG and WARN, reducing
>           the size of your kernel image and potentially quietly ignoring
>           numerous fatal conditions. You should only consider disabling this
>           option for embedded systems with no facilities for reporting errors.
>           Just say Y.
> 
> will become completely misleading.  Turning this option off will _not_ 
> result in "quietly ignoring numerous fatal conditions".

I'm fine with adding your text as a clarification - but I think 'quietly 
ignoring fatal conditions' very much implies an undefined outcome if that 
unexpected condition does occur: the code might crash, it might corrupt 
memory or it might do some other unexpected thing.

There are many other places that do a BUG_ON() of a NULL pointer or so, or 
of a zero refcount, or a not held lock - and turning the BUG_ON() off 
makes the code unpredictable _anyway_ - even if the compiler does not 
notice an uninitialized variable.

So pretty much any weakening of BUG_ON() _will_ make the kernel more 
unpredictable.

> And I come back to one of my previous arguments - is it not better to 
> panic() if we hit one of these conditions so that the system can try to 
> do a panic-reboot rather than continue blindly into the unknown?

It will often continue blindly into the unknown even if the compiler is 
happy ...

The only difference is that it's "unpredictable" in a way not visible from 
the C code: the code won't necessarily fall through the BUG() when hitting 
that condition - although in practice it probably will.

So I think the same principle applies to it as to any other debugging 
code: it's fine to be able to turn debugging off. It's a performance 
versus kernel robustness/determinism trade-off.

Thanks,

	Ingo

From - Thu Nov 08 21:09:20 2018
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From: Chen Gang <gang.chen@asianux.com>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.hexagon
Subject: Re: [PATCH] arch: configuration, deleting 'CONFIG_BUG' since always
 need it.
Date: Tue, 28 May 2013 18:25:44 +0800
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Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
 Linux-sh list <linux-sh@vger.kernel.org>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
 "paulus@samba.org" <paulus@samba.org>, "H. Peter Anvin" <hpa@zytor.com>,
 Michel Lespinasse <walken@google.com>,
 Hans-Christian Egtvedt <egtvedt@samfundet.no>,
 Linux-Arch <linux-arch@vger.kernel.org>, linux-s390@vger.kernel.org,
 Russell King - ARM Linux <linux@arm.linux.org.uk>,
 uml-devel <user-mode-linux-devel@lists.sourceforge.net>,
 Yoshinori Sato <ysato@users.sourceforge.jp>,
 Richard Weinberger <richard@nod.at>, Helge Deller <deller@gmx.de>,
 the arch/x86 maintainers <x86@kernel.org>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 "mingo@redhat.com" <mingo@redhat.com>,
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 Frederic Weisbecker <fweisbec@gmail.com>,
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 H?vard Skinnemoen <hskinnemoen@gmail.com>,
To: Ingo Molnar <mingo@kernel.org>
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On 05/28/2013 04:19 PM, Ingo Molnar wrote:
>> > And I come back to one of my previous arguments - is it not better to 
>> > panic() if we hit one of these conditions so that the system can try to 
>> > do a panic-reboot rather than continue blindly into the unknown?
> It will often continue blindly into the unknown even if the compiler is 
> happy ...
> 

For Server, it is necessary to always enable CONFIG_BUG and call panic()

When analyzing core dump or KDB trap, we have to assume that the kernel
has already "continued blindly", but lucky, we can get the core dump or
KDB trap finally (sometimes, we really even can not get core dump or KDB
trap).


For PC, it is useless to disable CONFIG_BUG

The PC memory has already large enough to skip the minimal size
optimization. And its speed is also high enough to skip the speed
improvement by minimal size optimization.


For Embedded system, some of architectures may disable CONFIG_BUG.

Embedded system are widely used in many area, so the requirement of each
architectures for BUG() may be different,

  some may need reboot as quickly as possible for urgent processing;
  some may need dead looping in BUG() for avoid user amazing;
    (if auto-reboot, users feel out of control, don't know what happens)
  some may still need panic() just like Server requirements.
  others may not care about it, just implement it as minimal size.



> The only difference is that i

t's "unpredictable" in a way not visible from
> the C code: the code won't necessarily fall through the BUG() when hitting 
> that condition - although in practice it probably will.
> 
> So I think the same principle applies to it as to any other debugging 
> code: it's fine to be able to turn debugging off. It's a performance 
> versus kernel robustness/determinism trade-off.

'minimal size' for BUG() is belongs to some of Embedded system specific
features, it is not 'generic' enough to be in "include/asm-generic/".

If we still provide the "disable CONFIG_BUG", some of 'crazy users'
(e.g. randconfig) may make 'noise' to most of architectures.

So we need not provide "disable CONFIG_BUG" features for all platforms,
since most of architectures need not support it, and the architecture
which really need minimal size, can implement it by itself as a
architecture specific feature.



Thanks.
-- 
Chen Gang

Asianux Corporation

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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] parisc: fix race conditions flushing user cache pages
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There are two issues addressed by this patch:

1) When we flush user instruction and data pages using the kernel  
tmpalias region, we need to
ensure that the local TLB entry for the tmpalias page is never  
replaced with a different mapping.
Previously, we purged the entry before and after the cache flush  
loop.  Although preemption was
disabled, it seemed possible that the value might change during  
interrupt processing.  The patch
removes the purge and disables interrupts during the initial TLB entry  
purge and cache flush.

2) In a number of places, we flush the TLB for the page and then flush  
the page.  We disabled
preemption around the flush.  This change disables preemption around  
both the TLB and cache
flushes as it seemed the effect of the purge might be lost.

Without this change, I saw four random segmentation faults in about  
1.5 days of intensive package
building last weekend.  With the change, I haven't seen a single  
random segmentation fault in about
one week of building Debian packages on 4-way rp3440.  So, there is a  
significant improvement
in system stability.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---



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diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index f0e2784..772dc27 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -114,8 +114,8 @@ static inline void
 flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr)
 {
 	if (PageAnon(page)) {
-		flush_tlb_page(vma, vmaddr);
 		preempt_disable();
+		flush_tlb_page(vma, vmaddr);
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
 		preempt_enable();
 	}
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 65fb4cb..2bbdada 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -397,10 +397,10 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 	   the kernel mapping. */
 	preempt_disable();
 	flush_dcache_page_asm(__pa(vfrom), vaddr);
-	preempt_enable();
 	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
 		flush_kernel_dcache_page_asm(vto);
+	preempt_enable();
 }
 EXPORT_SYMBOL(copy_user_page);
 
@@ -619,11 +619,11 @@ void clear_user_highpage(struct page *page, unsigned long vaddr)
 	   and the write-capable translation removed from the page
 	   table and purged from the TLB."  */
 
+	preempt_disable();
 	purge_kernel_dcache_page_asm((unsigned long)vto);
 	purge_tlb_start(flags);
 	pdtlb_kernel(vto);
 	purge_tlb_end(flags);
-	preempt_disable();
 	clear_user_page_asm(vto, vaddr);
 	preempt_enable();
 
@@ -644,12 +644,12 @@ void copy_user_highpage(struct page *to, struct page *from,
 	vfrom = kmap_atomic(from);
 	vto = kmap_atomic(to);
 
+	preempt_disable();
 	purge_kernel_dcache_page_asm((unsigned long)vto);
 	purge_tlb_start(flags);
 	pdtlb_kernel(vto);
 	pdtlb_kernel(vfrom);
 	purge_tlb_end(flags);
-	preempt_disable();
 	copy_user_page_asm(vto, vfrom, vaddr);
 	flush_dcache_page_asm(__pa(vto), vaddr);
 	preempt_enable();
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 36d7f40..46a83be 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -331,11 +331,10 @@ ENDPROC(flush_data_cache_local)
 
 /* Macros to serialize TLB purge operations on SMP.  */
 
-	.macro	tlb_lock	la,flags,tmp
+	.macro	tlb_lock	la,tmp
 #ifdef CONFIG_SMP
 	ldil		L%pa_tlb_lock,%r1
 	ldo		R%pa_tlb_lock(%r1),\la
-	rsm		PSW_SM_I,\flags
 1:	LDCW		0(\la),\tmp
 	cmpib,<>,n	0,\tmp,3f
 2:	ldw		0(\la),\tmp
@@ -346,11 +345,10 @@ ENDPROC(flush_data_cache_local)
 #endif
 	.endm
 
-	.macro	tlb_unlock	la,flags,tmp
+	.macro	tlb_unlock	la,tmp
 #ifdef CONFIG_SMP
 	ldi		1,\tmp
 	stw		\tmp,0(\la)
-	mtsm		\flags
 #endif
 	.endm
 
@@ -617,16 +615,22 @@ ENTRY(copy_user_page_asm)
 	depwi		1, 9,1, %r29		/* Form aliased virtual address 'from' */
 #endif
 
+	/* We need to ensure that the TLB entry is not replaced with
+	   a different value while the clear/copy loop executes.
+	   If this results in too much latency, interrupts could
+	   be re-enabled periodically.  */
+	rsm		PSW_SM_I, %r19		/* save I-bit state */
+
 	/* Purge any old translations */
 
 #ifdef CONFIG_PA20
 	pdtlb,l		0(%r28)
 	pdtlb,l		0(%r29)
 #else
-	tlb_lock	%r20,%r21,%r22
+	tlb_lock	%r20,%r22
 	pdtlb		0(%r28)
 	pdtlb		0(%r29)
-	tlb_unlock	%r20,%r21,%r22
+	tlb_unlock	%r20,%r22
 #endif
 
 #ifdef CONFIG_64BIT
@@ -736,7 +740,7 @@ ENTRY(copy_user_page_asm)
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
 #endif
-
+	mtsm		%r19
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -765,14 +769,20 @@ ENTRY(clear_user_page_asm)
 	depwi		0, 31,PAGE_SHIFT, %r28	/* Clear any offset bits */
 #endif
 
+	/* We need to ensure that the TLB entry is not replaced with
+	   a different value while the clear/copy loop executes.
+	   If this results in too much latency, interrupts could
+	   be re-enabled periodically.  */
+	rsm		PSW_SM_I, %r19		/* save I-bit state */
+
 	/* Purge any old translation */
 
 #ifdef CONFIG_PA20
 	pdtlb,l		0(%r28)
 #else
-	tlb_lock	%r20,%r21,%r22
+	tlb_lock	%r20,%r22
 	pdtlb		0(%r28)
-	tlb_unlock	%r20,%r21,%r22
+	tlb_unlock	%r20,%r22
 #endif
 
 #ifdef CONFIG_64BIT
@@ -823,6 +833,7 @@ ENTRY(clear_user_page_asm)
 	ldo		64(%r28), %r28
 #endif	/* CONFIG_64BIT */
 
+	mtsm		%r19
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -849,18 +860,20 @@ ENTRY(flush_dcache_page_asm)
 	depwi		0, 31,PAGE_SHIFT, %r28	/* Clear any offset bits */
 #endif
 
+	rsm		PSW_SM_I, %r19		/* save I-bit state */
+
 	/* Purge any old translation */
 
 #ifdef CONFIG_PA20
 	pdtlb,l		0(%r28)
 #else
-	tlb_lock	%r20,%r21,%r22
+	tlb_lock	%r20,%r22
 	pdtlb		0(%r28)
-	tlb_unlock	%r20,%r21,%r22
+	tlb_unlock	%r20,%r22
 #endif
 
 	ldil		L%dcache_stride, %r1
-	ldw		R%dcache_stride(%r1), %r1
+	ldw		R%dcache_stride(%r1), %r23
 
 #ifdef CONFIG_64BIT
 	depdi,z		1, 63-PAGE_SHIFT,1, %r25
@@ -868,37 +881,30 @@ ENTRY(flush_dcache_page_asm)
 	depwi,z		1, 31-PAGE_SHIFT,1, %r25
 #endif
 	add		%r28, %r25, %r25
-	sub		%r25, %r1, %r25
-
-
-1:      fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
+	sub		%r25, %r23, %r25
+
+
+1:      fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
+	fdc,m		%r23(%r28)
 	cmpb,COND(<<)		%r28, %r25,1b
-	fdc,m		%r1(%r28)
+	fdc,m		%r23(%r28)
 
+	mtsm		%r19
 	sync
 
-#ifdef CONFIG_PA20
-	pdtlb,l		0(%r25)
-#else
-	tlb_lock	%r20,%r21,%r22
-	pdtlb		0(%r25)
-	tlb_unlock	%r20,%r21,%r22
-#endif
-
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -925,18 +931,20 @@ ENTRY(flush_icache_page_asm)
 	depwi		0, 31,PAGE_SHIFT, %r28	/* Clear any offset bits */
 #endif
 
+	rsm		PSW_SM_I, %r19		/* save I-bit state */
+
 	/* Purge any old translation */
 
 #ifdef CONFIG_PA20
 	pitlb,l         %r0(%sr4,%r28)
 #else
-	tlb_lock        %r20,%r21,%r22
+	tlb_lock        %r20,%r22
 	pitlb           (%sr4,%r28)
-	tlb_unlock      %r20,%r21,%r22
+	tlb_unlock      %r20,%r22
 #endif
 
 	ldil		L%icache_stride, %r1
-	ldw		R%icache_stride(%r1), %r1
+	ldw		R%icache_stride(%r1), %r23
 
 #ifdef CONFIG_64BIT
 	depdi,z		1, 63-PAGE_SHIFT,1, %r25
@@ -944,39 +952,32 @@ ENTRY(flush_icache_page_asm)
 	depwi,z		1, 31-PAGE_SHIFT,1, %r25
 #endif
 	add		%r28, %r25, %r25
-	sub		%r25, %r1, %r25
+	sub		%r25, %r23, %r25
 
 
 	/* fic only has the type 26 form on PA1.1, requiring an
 	 * explicit space specification, so use %sr4 */
-1:      fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
+1:      fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
 	cmpb,COND(<<)	%r28, %r25,1b
-	fic,m		%r1(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
 
+	mtsm		%r19
 	sync
 
-#ifdef CONFIG_PA20
-	pitlb,l         %r0(%sr4,%r25)
-#else
-	tlb_lock        %r20,%r21,%r22
-	pitlb           (%sr4,%r25)
-	tlb_unlock      %r20,%r21,%r22
-#endif

From - Thu Nov 08 21:09:21 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.hexagon,gmane.linux.hardware.blackfin.kernel.devel
Subject: Re: [PATCH] arch: configuration,
 deleting 'CONFIG_BUG' since always need it.
Date: Tue, 28 May 2013 16:49:20 +0200
Lines: 165
Approved: news@gmane.org
Message-ID: <2827337.zlCzuksfVM@wuerfel>
References: <519DCBEF.3090208@asianux.com>
 <20130523100409.GK18614@n2100.arm.linux.org.uk>
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Cc: Linux-sh list <linux-sh@vger.kernel.org>,
 Catalin Marinas <Catalin.Marinas@arm.com>, Chen Gang <gang.chen@asianux.com>,
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 the arch/x86 maintainers <x86@kernel.org>,
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To: linuxppc-dev@lists.ozlabs.org
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On Tuesday 28 May 2013 10:19:10 Ingo Molnar wrote:
> 
> * Russell King - ARM Linux <linux@arm.linux.org.uk> wrote:
> 
> > So, if you want to use this, then you should update the CONFIG_BUG text 
> > to include a warning to this effect:
> > 
> >      Warning: if CONFIG_BUG is turned off, and control flow reaches
> >      a BUG(), the system behaviour will be undefined.
> > 
> > so that people can make an informed choice about this, because at the
> > moment:
> > 
> >           Disabling this option eliminates support for BUG and WARN, reducing
> >           the size of your kernel image and potentially quietly ignoring
> >           numerous fatal conditions. You should only consider disabling this
> >           option for embedded systems with no facilities for reporting errors.
> >           Just say Y.
> > 
> > will become completely misleading.  Turning this option off will _not_ 
> > result in "quietly ignoring numerous fatal conditions".
> 
> I'm fine with adding your text as a clarification - but I think 'quietly 
> ignoring fatal conditions' very much implies an undefined outcome if that 
> unexpected condition does occur: the code might crash, it might corrupt 
> memory or it might do some other unexpected thing.
> 
> There are many other places that do a BUG_ON() of a NULL pointer or so, or 
> of a zero refcount, or a not held lock - and turning the BUG_ON() off 
> makes the code unpredictable _anyway_ - even if the compiler does not 
> notice an uninitialized variable.
> 
> So pretty much any weakening of BUG_ON() _will_ make the kernel more 
> unpredictable.

FWIW, I've run some size analyis using the ARM 'multi_v7_defconfig'
and gcc-4.8, using various definitions for BUG() and BUG_ON(), to
see how big the size improvement actually gets

1. Baseline: normal bug plus CONFIG_BUG_VERBOSE
   text    data     bss     dec     hex filename
3743196  224396  206812 4174404  3fb244 vmlinux-bugverbose

2. disabling CONFIG_BUG_VERBOSE, saving 0.6%
3716920  224380  206812 4148112  3f4b90 vmlinux-nobugverbose

3. #define BUG() panic(__func__), #define BUG_ON(c) if(c) BUG(), saving 1.0%
3701076  224384  206812 4132272  3f0db0 vmlinux-bug-panicfunc

3. #define BUG() panic(__func__), #define BUG_ON(c) if(c) BUG(), saving 1.5%
3678884  224400  206812 4110096  3eb710 vmlinux-bug-panic

4. #define BUG() unreachable(), saving 2.1%
3652636  224384  206812 4083832  3e5078 vmlinux-bug-unreachable

5. as 4, plus #define BUG_ON(c) if(c) unreachable(), saving 2.2%
3651108  224380  206812 4082300  3e4a7c vmlinux-bugon-unreachable

6. #define BUG() do{}while(0), saving 2.1%
3654264  224380  206812 4085456  3e56d0 vmlinux-nobug

7. as 6, plus #define BUG_ON if(0 && (c)) unreachable, saving 2.2%
3648392  223996  206748 4079136  3e3e20 vmlinux-no-bugon

8. my patch below, saving 1.8%
3666532  224380  206812 4097724  3e86bc obj-tmp/vmlinux

The gain of doing unreachable and letting the code run off whereever
is minimal compared to the current state of doing nothing, but it
avoids the warnings.

Same test using x86_defconfig:

1. CONFIG_BUG=y, CONFIG_BUGVERBOSE=n
10797859        1395648 1175552 13369059         cbfee3 vmlinux-x86-bug

2. CONFIG_BUG=n, saves 1.0%
10658553        1395584 1175552 13229689         c9de79 vmlinux-x86-nobug

3. with my patch, saves 0.8%
10684186        1395584 1175552 13255322         ca429a vmlinux-x86-archbug

Getting 1-2% savings in kernel size seems absolutely worth keeping the
option, but 0.2-0.4% left for getting reproducible behavior also seems
worthwhile. The result in the patch below.

This basically loses any of the BUG() reporting, but leaves the
logic to trap and kill the task in place when CONFIG_BUG is disabled.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/arm/include/asm/bug.h b/arch/arm/include/asm/bug.h
index 7af5c6c..f25e638 100644
--- a/arch/arm/include/asm/bug.h
+++ b/arch/arm/include/asm/bug.h
@@ -3,8 +3,6 @@
 
 #include <linux/linkage.h>
 
-#ifdef CONFIG_BUG
-
 /*
  * Use a suitable undefined instruction to use for ARM/Thumb2 bug handling.
  * We need to be careful not to conflict with those used by other modules and
@@ -51,10 +50,10 @@ do {								\
 	asm volatile(BUG_INSTR_TYPE #__value);			\
 	unreachable();						\
 } while (0)
 #endif  /* CONFIG_DEBUG_BUGVERBOSE */
 
 #define HAVE_ARCH_BUG
-#endif  /* CONFIG_BUG */
+#define HAVE_ARCH_BUG_ON
 
 #include <asm-generic/bug.h>
 
diff --git a/arch/x86/include/asm/bug.h b/arch/x86/include/asm/bug.h
index 2f03ff0..ba38ebb 100644
--- a/arch/x86/include/asm/bug.h
+++ b/arch/x86/include/asm/bug.h
@@ -1,7 +1,6 @@
 #ifndef _ASM_X86_BUG_H
 #define _ASM_X86_BUG_H
 
-#ifdef CONFIG_BUG
 #define HAVE_ARCH_BUG
 
 #ifdef CONFIG_DEBUG_BUGVERBOSE
@@ -33,8 +32,6 @@ do {								\
 } while (0)
 #endif
 
-#endif /* !CONFIG_BUG */
-
 #include <asm-generic/bug.h>
 
 #endif /* _ASM_X86_BUG_H */
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 7d10f96..bbd2872 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -112,12 +112,13 @@ extern void warn_slowpath_null(const char *file, const int line);
 #endif
 
 #ifndef HAVE_ARCH_BUG_ON
-#define BUG_ON(condition) do { if (condition) ; } while(0)
+#define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0)
 #endif
 
 #ifndef HAVE_ARCH_WARN_ON
 #define WARN_ON(condition) ({						\
 	int __ret_warn_on = !!(condition);				\
+	(void)__ret_warn_on;						\
 	unlikely(__ret_warn_on);					\
 })
 #endif
@@ -125,6 +126,8 @@ extern void warn_slowpath_null(const char *file, const int line);
 #ifndef WARN
 #define WARN(condition, format...) ({					\
 	int __ret_warn_on = !!(condition);				\
+	if (0 && (__ret_warn_on))					\
+		printk(format);						\
 	unlikely(__ret_warn_on);					\
 })
 #endif

From - Thu Nov 08 21:09:21 2018
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From: "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
Newsgroups: gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] arch: configuration,
 deleting 'CONFIG_BUG' since always need it.
Date: Tue, 28 May 2013 07:55:32 -0700
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Approved: news@gmane.org
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	<20130523090534.GJ18614@n2100.arm.linux.org.uk>
	<CAMuHMdWez-j1Maa3BD7ucmzv0_zFJnChERQiHFmkCaZUzG0_AA@mail.gmail.com>
	<201305231139.38233.arnd@arndb.de>
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Cc: Linux-sh list <linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
        Catalin Marinas <Catalin.Marinas-5wv7dgnIgG8@public.gmane.org>,
        Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>,
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        Heiko Carstens <heiko.carstens-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>,
        "paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org" <paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>,
        Michel Lespinasse <walken-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
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        Linux-Arch <linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
        Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
        uml-devel <user-mode-linux-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
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        Richard Weinberger <richard-/L3Ra7n9ekc@public.gmane.org>, Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>,
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To: Ingo Molnar <mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
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On 05/28/2013 01:19 AM, Ingo Molnar wrote:
> 
> So I think the same principle applies to it as to any other debugging 
> code: it's fine to be able to turn debugging off. It's a performance 
> versus kernel robustness/determinism trade-off.
> 

I suspect, rather, that BUG() should turn into a trap (or jump to a
death routine) under any circumstances.  The one thing that can be
omitted for small configurations are the annotations, which only serve
to output a more human-readable error message.

	-hpa

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Subject: Re: [PATCH] arch: configuration,
 deleting 'CONFIG_BUG' since always need it.
Date: Tue, 28 May 2013 17:43:52 +0200
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To: "H. Peter Anvin" <hpa@zytor.com>
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On Tuesday 28 May 2013, H. Peter Anvin wrote:
> On 05/28/2013 01:19 AM, Ingo Molnar wrote:
> > 
> > So I think the same principle applies to it as to any other debugging 
> > code: it's fine to be able to turn debugging off. It's a performance 
> > versus kernel robustness/determinism trade-off.
> > 
> 
> I suspect, rather, that BUG() should turn into a trap (or jump to a
> death routine) under any circumstances.  The one thing that can be
> omitted for small configurations are the annotations, which only serve
> to output a more human-readable error message.

Right, that is what the patch I just posted does.

On a related note, I found that WARN_ON() can no longer be compiled
out since there is already code that relies on the side-effects of
the condition. I assume that was an intentional change I missed,
since it used to be defined so that you could remove it completely.

	Arnd

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Newsgroups: gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] arch: configuration,
 deleting 'CONFIG_BUG' since always need it.
Date: Tue, 28 May 2013 09:06:48 -0700
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To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
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On 05/28/2013 08:43 AM, Arnd Bergmann wrote:
> 
> Right, that is what the patch I just posted does.
> 
> On a related note, I found that WARN_ON() can no longer be compiled
> out since there is already code that relies on the side-effects of
> the condition. I assume that was an intentional change I missed,
> since it used to be defined so that you could remove it completely.
> 

It is possible to define WARN_ON() as:

#define WARN_ON(x) ((void)(x))

... which preserves side effects.

	-hpa

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Subject: Re: [PATCH] arch: configuration,
	deleting 'CONFIG_BUG' since always need it.
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On Tuesday 28 May 2013, H. Peter Anvin wrote:
> On 05/28/2013 08:43 AM, Arnd Bergmann wrote:
> > 
> > Right, that is what the patch I just posted does.
> > 
> > On a related note, I found that WARN_ON() can no longer be compiled
> > out since there is already code that relies on the side-effects of
> > the condition. I assume that was an intentional change I missed,
> > since it used to be defined so that you could remove it completely.
> > 
> 
> It is possible to define WARN_ON() as:
> 
> #define WARN_ON(x) ((void)(x))
> 
> ... which preserves side effects.

Yes, actually the return value has to be maintained as well.
The current (!CONFIG_BUG) default implementation is

#define WARN_ON(condition) ({                                           \
        int __ret_warn_on = !!(condition);                              \
        unlikely(__ret_warn_on);                                        \
})

which seems fine.

#define WARN_ON(condition) unlikely(!!(condition))

is probably just as good.

	Arnd

From - Thu Nov 08 21:09:21 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50
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To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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With CONFIG_DISCONTIGMEM=y and multiple physical memory areas,
cat /proc/kpageflags triggers this kernel bug:

kernel BUG at arch/parisc/include/asm/mmzone.h:50!
CPU: 2 PID: 7848 Comm: cat Tainted: G      D W 3.10.0-rc3-64bit #44
 IAOQ[0]: kpageflags_read0x128/0x238
 IAOQ[1]: kpageflags_read0x12c/0x238
 RP(r2): proc_reg_read0xbc/0x130
Backtrace:
 [<00000000402ca2d4>] proc_reg_read0xbc/0x130
 [<0000000040235bcc>] vfs_read0xc4/0x1d0
 [<0000000040235f0c>] SyS_read0x94/0xf0
 [<0000000040105fc0>] syscall_exit0x0/0x14

kpageflags_read() walks through the whole memory, even if some memory
areas are physically not available. So, we should better not BUG on an
unavailable pfn in pfn_to_nid() but just return the expected value -1 or
0.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index 0e625ab..cc50d33 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -39,17 +39,14 @@ extern unsigned char pfnnid_map[PFNNID_MAP_MAX];
 static inline int pfn_to_nid(unsigned long pfn)
 {
 	unsigned int i;
-	unsigned char r;
 
 	if (unlikely(pfn_is_io(pfn)))
 		return 0;
 
 	i = pfn >> PFNNID_SHIFT;
 	BUG_ON(i >= ARRAY_SIZE(pfnnid_map));
-	r = pfnnid_map[i];
-	BUG_ON(r == 0xff);
 
-	return (int)r;
+	return (int)pfnnid_map[i];
 }
 
 static inline int pfn_valid(int pfn)
--
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From - Thu Nov 08 21:09:21 2018
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From: Paul Bolle <pebolle@tiscali.nl>
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Subject: [PATCH] parisc: rename "CONFIG_PA7100" to "CONFIG_PA7000"
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There's a Makefile line setting cflags for CONFIG_PA7100. But that
Kconfig macro doesn't exist. There is a Kconfig symbol PA7000, which
covers both PA7000 and PA7100 processors. So let's use the corresponding
Kconfig macro.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
---
Untested. This needs testing for two reasons:

- the gcc documentation suggests this might not work for PA7000
processors of architecture 1.0 (aka, "PA7000 (PCX)");

- this has line has always been a NOP. See, a comparable line was added
in v2.5.45. It depended on CONFIG_PA7100, which didn't exist. A Kconfig
symbol PA7100 has actually never been part of the tree. (In v2.5.46 the
Kconfig symbol PA7000 was added, but that still kept that line a NOP.)

 arch/parisc/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 1976900..96ec398 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -66,7 +66,7 @@ KBUILD_CFLAGS_KERNEL += -mlong-calls
 endif
 
 # select which processor to optimise for
-cflags-$(CONFIG_PA7100)		+= -march=1.1 -mschedule=7100
+cflags-$(CONFIG_PA7000)		+= -march=1.1 -mschedule=7100
 cflags-$(CONFIG_PA7200)		+= -march=1.1 -mschedule=7200
 cflags-$(CONFIG_PA7100LC)	+= -march=1.1 -mschedule=7100LC
 cflags-$(CONFIG_PA7300LC)	+= -march=1.1 -mschedule=7300
-- 
1.7.11.7


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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/100919>

Prepare for removing num_physpages and simplify mem_init().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: linux-parisc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 arch/parisc/mm/init.c | 47 +++--------------------------------------------
 1 file changed, 3 insertions(+), 44 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 74608f7..3f31102 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -214,7 +214,6 @@ static void __init setup_bootmem(void)
 	mem_limit_func();       /* check for "mem=" argument */
 
 	mem_max = 0;
-	num_physpages = 0;
 	for (i = 0; i < npmem_ranges; i++) {
 		unsigned long rsize;
 
@@ -229,10 +228,8 @@ static void __init setup_bootmem(void)
 				npmem_ranges = i + 1;
 				mem_max = mem_limit;
 			}
-	        num_physpages += pmem_ranges[i].pages;
 			break;
 		}
-	    num_physpages += pmem_ranges[i].pages;
 		mem_max += rsize;
 	}
 
@@ -532,7 +529,7 @@ void free_initmem(void)
 	 * pages are no-longer executable */
 	flush_icache_range(init_begin, init_end);
 	
-	num_physpages += free_initmem_default(-1);
+	free_initmem_default(-1);
 
 	/* set up a new led state on systems shipped LED State panel */
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE);
@@ -580,8 +577,6 @@ unsigned long pcxl_dma_start __read_mostly;
 
 void __init mem_init(void)
 {
-	int codesize, reservedpages, datasize, initsize;
-
 	/* Do sanity checks on page table constants */
 	BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
 	BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));
@@ -603,33 +598,6 @@ void __init mem_init(void)
 	}
 #endif
 
-	codesize = (unsigned long)_etext - (unsigned long)_text;
-	datasize = (unsigned long)_edata - (unsigned long)_etext;
-	initsize = (unsigned long)__init_end - (unsigned long)__init_begin;
-
-	reservedpages = 0;
-{
-	unsigned long pfn;
-#ifdef CONFIG_DISCONTIGMEM
-	int i;
-
-	for (i = 0; i < npmem_ranges; i++) {
-		for (pfn = node_start_pfn(i); pfn < node_end_pfn(i); pfn++) {
-			if (PageReserved(pfn_to_page(pfn)))
-				reservedpages++;
-		}
-	}
-#else /* !CONFIG_DISCONTIGMEM */
-	for (pfn = 0; pfn < max_pfn; pfn++) {
-		/*
-		 * Only count reserved RAM pages
-		 */
-		if (PageReserved(pfn_to_page(pfn)))
-			reservedpages++;
-	}
-#endif
-}
-
 #ifdef CONFIG_PA11
 	if (hppa_dma_ops == &pcxl_dma_ops) {
 		pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
@@ -643,15 +611,7 @@ void __init mem_init(void)
 	parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
 #endif
 
-	printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n",
-		nr_free_pages() << (PAGE_SHIFT-10),
-		num_physpages << (PAGE_SHIFT-10),
-		codesize >> 10,
-		reservedpages << (PAGE_SHIFT-10),
-		datasize >> 10,
-		initsize >> 10
-	);
-
+	mem_init_print_info(NULL);
 #ifdef CONFIG_DEBUG_KERNEL /* double-sanity-check paranoia */
 	printk("virtual kernel memory layout:\n"
 	       "    vmalloc : 0x%p - 0x%p   (%4ld MB)\n"
@@ -1101,7 +1061,6 @@ void flush_tlb_all(void)
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-	num_physpages += free_reserved_area((void *)start, (void *)end, -1,
-					    "initrd");
+	free_reserved_area((void *)start, (void *)end, -1, "initrd");
 }
 #endif
-- 
1.8.1.2

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Subject: [PATCH, v2 08/13] mm/PARISC: prepare for killing free_all_bootmem_node()
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/100944>

Prepare for killing free_all_bootmem_node() by using
free_all_bootmem().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: linux-parisc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 arch/parisc/mm/init.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 3f31102..cf4ca13 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -585,18 +585,8 @@ void __init mem_init(void)
 			> BITS_PER_LONG);
 
 	high_memory = __va((max_pfn << PAGE_SHIFT));
-
-#ifndef CONFIG_DISCONTIGMEM
-	max_mapnr = page_to_pfn(virt_to_page(high_memory - 1)) + 1;
+	set_max_mapnr(page_to_pfn(virt_to_page(high_memory - 1)) + 1);
 	free_all_bootmem();
-#else
-	{
-		int i;
-
-		for (i = 0; i < npmem_ranges; i++)
-			free_all_bootmem_node(NODE_DATA(i));
-	}
-#endif
 
 #ifdef CONFIG_PA11
 	if (hppa_dma_ops == &pcxl_dma_ops) {
-- 
1.8.1.2

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From - Thu Nov 08 21:09:22 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.cross-arch
Subject: [PATCH] arch: parisc: kernel: using strlcpy() instead of strcpy()
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'boot_args' is an input args, and 'boot_command_line' has a fix length.

So need use strlcpy() instead of strcpy() to avoid memory overflow.


Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 arch/parisc/kernel/setup.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 60c1ae6..7349a3f 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -69,7 +69,8 @@ void __init setup_cmdline(char **cmdline_p)
 		/* called from hpux boot loader */
 		boot_command_line[0] = '\0';
 	} else {
-		strcpy(boot_command_line, (char *)__va(boot_args[1]));
+		strlcpy(boot_command_line, (char *)__va(boot_args[1]),
+			COMMAND_LINE_SIZE);
 
 #ifdef CONFIG_BLK_DEV_INITRD
 		if (boot_args[2] != 0) /* did palo pass us a ramdisk? */
-- 
1.7.7.6
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/MAINTAINERS b/MAINTAINERS
index fd3a495..9fc8e2a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6087,7 +6087,13 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
 S:	Maintained
 F:	arch/parisc/
+F:	Documentation/parisc/
 F:	drivers/parisc/
+F:	drivers/char/agp/parisc-agp.c
+F:	drivers/video/sti*
+F:	drivers/video/console/sti*
+F:	drivers/video/logo/logo_parisc*
+F:	sound/parisc/
 
 PC87360 HARDWARE MONITORING DRIVER
 M:	Jim Cromie <jim.cromie@gmail.com>
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc/PCI: lba: fix: convert to pci_create_root_bus() for
 correct root bus resources
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This commit dc7dce280a26d069ad5a58bf3da86e5e83415c65
Author: Bjorn Helgaas <bhelgaas@google.com>
Date:   Fri Oct 28 16:27:27 2011 -0600
   parisc/PCI: lba: convert to pci_create_root_bus() for correct root bus
                    resources

  Supply root bus resources to pci_create_root_bus() so they're correct
  immediately.  This fixes the problem of "early" and "header" quirks seeing
  incorrect root bus resources.

forgot to set the IORESOURCE_BUS bus flag which led to incorrect resource
assignments and a non-working stifb framebuffer on most parisc machines.

LBA 10:1: PCI host bridge to bus 0000:01
pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
pci_bus 0000:01: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff])
pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff])
pci_bus 0000:01: root bus resource [??? 0x00000001 flags 0x0]

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 2ef7103..29f3d7d 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1494,7 +1494,7 @@ lba_driver_probe(struct parisc_device *dev)
 
 	pci_add_resource_offset(&resources, &lba_dev->hba.io_space,
 				HBA_PORT_BASE(lba_dev->hba.hba_num));
-	if (lba_dev->hba.elmmio_space.start)
+	if (lba_dev->hba.elmmio_space.flags)
 		pci_add_resource_offset(&resources, &lba_dev->hba.elmmio_space,
 					lba_dev->hba.lmmio_space_offset);
 	if (lba_dev->hba.lmmio_space.flags)
@@ -1503,6 +1503,7 @@ lba_driver_probe(struct parisc_device *dev)
 	if (lba_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
 
+	lba_dev->hba.bus_num.flags = IORESOURCE_BUS;
 	pci_add_resource(&resources, &lba_dev->hba.bus_num);
 
 	dev->dev.platform_data = lba_dev;
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From - Thu Nov 08 21:09:22 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: fix race conditions flushing user cache pages
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Cc: linux-parisc List <linux-parisc@vger.kernel.org>,
	Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>
To: John David Anglin <dave.anglin@bell.net>
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On Tue, 2013-05-28 at 08:09 -0400, John David Anglin wrote:
> There are two issues addressed by this patch:
> 
> 1) When we flush user instruction and data pages using the kernel  
> tmpalias region, we need to
> ensure that the local TLB entry for the tmpalias page is never  
> replaced with a different mapping.
> Previously, we purged the entry before and after the cache flush  
> loop.  Although preemption was
> disabled, it seemed possible that the value might change during  
> interrupt processing.  The patch
> removes the purge and disables interrupts during the initial TLB entry  
> purge and cache flush.
> 
> 2) In a number of places, we flush the TLB for the page and then flush  
> the page.  We disabled
> preemption around the flush.  This change disables preemption around  
> both the TLB and cache
> flushes as it seemed the effect of the purge might be lost.
> 
> Without this change, I saw four random segmentation faults in about  
> 1.5 days of intensive package
> building last weekend.  With the change, I haven't seen a single  
> random segmentation fault in about
> one week of building Debian packages on 4-way rp3440.  So, there is a  
> significant improvement
> in system stability.

an rp3440 is PA2.0, so you weren't really testing any of the tlb purge
locking changes.

Also, I don't know what happened, but the actual tmpalias theory
requires a TLB purge before and after and I though we used to have them.
The reason is twofold:

     1. You don't want the caches to speculate in the tmpalias region
     2. A flush after makes the routines interrupt safe (because you can
        interrupt in a tmpalias operation, do another tmpalias
        operation, purge the cache and restart within the non interrupt
        tmpalias and expect everything to work).

Trying to disable interrupts sounds like problem 2.  Can we return to
the proper tmpalias operations rather than trying to hack around them?

James




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From - Thu Nov 08 21:09:22 2018
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On 05/30/2013 04:55 PM, James Bottomley wrote:
> On Tue, 2013-05-28 at 08:09 -0400, John David Anglin wrote:
>> There are two issues addressed by this patch:
>>
>> 1) When we flush user instruction and data pages using the kernel  
>> tmpalias region, we need to
>> ensure that the local TLB entry for the tmpalias page is never  
>> replaced with a different mapping.
>> Previously, we purged the entry before and after the cache flush  
>> loop.  Although preemption was
>> disabled, it seemed possible that the value might change during  
>> interrupt processing.  The patch
>> removes the purge and disables interrupts during the initial TLB entry  
>> purge and cache flush.
>>
>> 2) In a number of places, we flush the TLB for the page and then flush  
>> the page.  We disabled
>> preemption around the flush.  This change disables preemption around  
>> both the TLB and cache
>> flushes as it seemed the effect of the purge might be lost.
>>
>> Without this change, I saw four random segmentation faults in about  
>> 1.5 days of intensive package
>> building last weekend.  With the change, I haven't seen a single  
>> random segmentation fault in about
>> one week of building Debian packages on 4-way rp3440.  So, there is a  
>> significant improvement
>> in system stability.
> 
> an rp3440 is PA2.0, so you weren't really testing any of the tlb purge
> locking changes.

Which kind of system do we need to test those "tlb purge locking changes" (PAx.y)?
At least I can confirm, that Dave's patches have made all my systems 
absolutely stable.
 
> Also, I don't know what happened, but the actual tmpalias theory
> requires a TLB purge before and after and I though we used to have them.
> The reason is twofold:
> 
>      1. You don't want the caches to speculate in the tmpalias region
>      2. A flush after makes the routines interrupt safe (because you can
>         interrupt in a tmpalias operation, do another tmpalias
>         operation, purge the cache and restart within the non interrupt
>         tmpalias and expect everything to work).
> 
> Trying to disable interrupts sounds like problem 2.  Can we return to
> the proper tmpalias operations rather than trying to hack around them?

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From - Thu Nov 08 21:09:22 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: fix race conditions flushing user cache pages
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Cc: John David Anglin <dave.anglin@bell.net>,
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On 05/30/2013 05:01 PM, Helge Deller wrote:
> On 05/30/2013 04:55 PM, James Bottomley wrote:
>> On Tue, 2013-05-28 at 08:09 -0400, John David Anglin wrote:
>>> There are two issues addressed by this patch:
>>>
>>> 1) When we flush user instruction and data pages using the kernel  
>>> tmpalias region, we need to
>>> ensure that the local TLB entry for the tmpalias page is never  
>>> replaced with a different mapping.
>>> Previously, we purged the entry before and after the cache flush  
>>> loop.  Although preemption was
>>> disabled, it seemed possible that the value might change during  
>>> interrupt processing.  The patch
>>> removes the purge and disables interrupts during the initial TLB entry  
>>> purge and cache flush.
>>>
>>> 2) In a number of places, we flush the TLB for the page and then flush  
>>> the page.  We disabled
>>> preemption around the flush.  This change disables preemption around  
>>> both the TLB and cache
>>> flushes as it seemed the effect of the purge might be lost.
>>>
>>> Without this change, I saw four random segmentation faults in about  
>>> 1.5 days of intensive package
>>> building last weekend.  With the change, I haven't seen a single  
>>> random segmentation fault in about
>>> one week of building Debian packages on 4-way rp3440.  So, there is a  
>>> significant improvement
>>> in system stability.
>>
>> an rp3440 is PA2.0, so you weren't really testing any of the tlb purge
>> locking changes.
> 
> Which kind of system do we need to test those "tlb purge locking changes" (PAx.y)?
> At least I can confirm, that Dave's patches have made all my systems 
> absolutely stable.

For those who want to test right now, you can check out the "for-next" branch of:
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
in which I've queue up the outstanding patches for 3.10...

(web: http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/log/?h=for-next)

Helge
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Subject: Re: [PATCH] arch: parisc: kernel: using strlcpy() instead of strcpy()
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On Thu, May 30, 2013 at 09:18:43AM +0800, Chen Gang wrote:
> 
> 'boot_args' is an input args, and 'boot_command_line' has a fix length.
> 
> So need use strlcpy() instead of strcpy() to avoid memory overflow.
> 
> 
> Signed-off-by: Chen Gang <gang.chen@asianux.com>
> ---
>  arch/parisc/kernel/setup.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
> index 60c1ae6..7349a3f 100644
> --- a/arch/parisc/kernel/setup.c
> +++ b/arch/parisc/kernel/setup.c
> @@ -69,7 +69,8 @@ void __init setup_cmdline(char **cmdline_p)
>  		/* called from hpux boot loader */
>  		boot_command_line[0] = '\0';
>  	} else {
> -		strcpy(boot_command_line, (char *)__va(boot_args[1]));
> +		strlcpy(boot_command_line, (char *)__va(boot_args[1]),
> +			COMMAND_LINE_SIZE);

What about add 
boot_command_line[COMMAND_LINE_SIZE - 1] = '\0';
to protect the following another strcpy?

"
strcpy(command_line, boot_command_line);
"
>  
>  #ifdef CONFIG_BLK_DEV_INITRD
>  		if (boot_args[2] != 0) /* did palo pass us a ramdisk? */
> -- 
> 1.7.7.6
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Subject: Re: [PATCH] parisc: fix race conditions flushing user cache pages
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On Thu, 2013-05-30 at 17:01 +0200, Helge Deller wrote:
> On 05/30/2013 04:55 PM, James Bottomley wrote:
> > On Tue, 2013-05-28 at 08:09 -0400, John David Anglin wrote:
> >> There are two issues addressed by this patch:
> >>
> >> 1) When we flush user instruction and data pages using the kernel  
> >> tmpalias region, we need to
> >> ensure that the local TLB entry for the tmpalias page is never  
> >> replaced with a different mapping.
> >> Previously, we purged the entry before and after the cache flush  
> >> loop.  Although preemption was
> >> disabled, it seemed possible that the value might change during  
> >> interrupt processing.  The patch
> >> removes the purge and disables interrupts during the initial TLB entry  
> >> purge and cache flush.
> >>
> >> 2) In a number of places, we flush the TLB for the page and then flush  
> >> the page.  We disabled
> >> preemption around the flush.  This change disables preemption around  
> >> both the TLB and cache
> >> flushes as it seemed the effect of the purge might be lost.
> >>
> >> Without this change, I saw four random segmentation faults in about  
> >> 1.5 days of intensive package
> >> building last weekend.  With the change, I haven't seen a single  
> >> random segmentation fault in about
> >> one week of building Debian packages on 4-way rp3440.  So, there is a  
> >> significant improvement
> >> in system stability.
> > 
> > an rp3440 is PA2.0, so you weren't really testing any of the tlb purge
> > locking changes.
> 
> Which kind of system do we need to test those "tlb purge locking changes" (PAx.y)?

the #ifdef is CONFIG_PA20, so any 1.x system should work.  The actual
locks are only needed for the Merced systems, which are N class because
they have an architectural bug where there can only be one purge active
on the CPU bus at any one time.

> At least I can confirm, that Dave's patches have made all my systems 
> absolutely stable.

Can we try the proper fix before things like disabling interrupts.
copy_page_asm and clear_page_asm don't have the necessary purges at the
end.  I don't think this ever mattered for clear_page_asm since it's
only used in the memory backend for pages going to userspace (so not at
interrupt), but for some reason we've suddenly started using
copy_page_asm, which could be used at interrupt.

I honestly don't think we should be using copy_page_asm at all.  The
speed up we get from it isn't realised because we have to flush the
cache after we've finished to try and make I/D coherence.  This makes
the call the same cost as the kmapped memcpy but requires twice the
tmpalias space to be allocated because of the from and to mappings.

James

> > Also, I don't know what happened, but the actual tmpalias theory
> > requires a TLB purge before and after and I though we used to have them.
> > The reason is twofold:
> > 
> >      1. You don't want the caches to speculate in the tmpalias region
> >      2. A flush after makes the routines interrupt safe (because you can
> >         interrupt in a tmpalias operation, do another tmpalias
> >         operation, purge the cache and restart within the non interrupt
> >         tmpalias and expect everything to work).
> > 
> > Trying to disable interrupts sounds like problem 2.  Can we return to
> > the proper tmpalias operations rather than trying to hack around them?
> 
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Subject: Re: [PATCH] arch: parisc: kernel: using strlcpy() instead of strcpy()
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On Thu, May 30, 2013 at 09:18:43AM +0800, Chen Gang wrote:
> 
> 'boot_args' is an input args, and 'boot_command_line' has a fix length.
> 
> So need use strlcpy() instead of strcpy() to avoid memory overflow.
> 

This is basically impossible, since boot_args is fixed in size by palo,
initialized to zero, and length checked in the bootloader. It's also
only 256+4 bytes compared to the 1024 bytes set aside for
boot_command_line.

That said, it's harmless to use strlcpy here, and obviously (more)
correct. Thanks!

Acked-by: Kyle McMartin <kyle@mcmartin.ca>

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] parport_pc: disable PARPORT_PC_SUPERIO on parisc architecture
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If enabled, CONFIG_PARPORT_PC_SUPERIO scans on PC-like hardware for
various super-io chips by accessing i/o ports in a range which will
crash any parisc hardware at once.

In addition, parisc has it's own incompatible superio chip
(CONFIG_SUPERIO), so if we disable PARPORT_PC_SUPERIO completely for
parisc we can avoid that people by accident enable the parport_pc
superio option too.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parport/Kconfig b/drivers/parport/Kconfig
index 24e12d4..a505760 100644
--- a/drivers/parport/Kconfig
+++ b/drivers/parport/Kconfig
@@ -71,7 +71,7 @@ config PARPORT_PC_FIFO
 
 config PARPORT_PC_SUPERIO
 	bool "SuperIO chipset support"
-	depends on PARPORT_PC
+	depends on PARPORT_PC && !PARISC
 	help
 	  Saying Y here enables some probes for Super-IO chipsets in order to
 	  find out things like base addresses, IRQ lines and DMA channels.  It
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: fix race conditions flushing user cache pages
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On 5/30/2013 11:11 AM, James Bottomley wrote:
> On Thu, 2013-05-30 at 17:01 +0200, Helge Deller wrote:
>> On 05/30/2013 04:55 PM, James Bottomley wrote:
>>> On Tue, 2013-05-28 at 08:09 -0400, John David Anglin wrote:
>>>> There are two issues addressed by this patch:
>>>>
>>>> 1) When we flush user instruction and data pages using the kernel
>>>> tmpalias region, we need to
>>>> ensure that the local TLB entry for the tmpalias page is never
>>>> replaced with a different mapping.
>>>> Previously, we purged the entry before and after the cache flush
>>>> loop.  Although preemption was
>>>> disabled, it seemed possible that the value might change during
>>>> interrupt processing.  The patch
>>>> removes the purge and disables interrupts during the initial TLB entry
>>>> purge and cache flush.
>>>>
>>>> 2) In a number of places, we flush the TLB for the page and then flush
>>>> the page.  We disabled
>>>> preemption around the flush.  This change disables preemption around
>>>> both the TLB and cache
>>>> flushes as it seemed the effect of the purge might be lost.
>>>>
>>>> Without this change, I saw four random segmentation faults in about
>>>> 1.5 days of intensive package
>>>> building last weekend.  With the change, I haven't seen a single
>>>> random segmentation fault in about
>>>> one week of building Debian packages on 4-way rp3440.  So, there is a
>>>> significant improvement
>>>> in system stability.
>>> an rp3440 is PA2.0, so you weren't really testing any of the tlb purge
>>> locking changes.
>> Which kind of system do we need to test those "tlb purge locking changes" (PAx.y)?
> the #ifdef is CONFIG_PA20, so any 1.x system should work.  The actual
> locks are only needed for the Merced systems, which are N class because
> they have an architectural bug where there can only be one purge active
> on the CPU bus at any one time.
With respect to the functions doing copies and flushes via the tmpalias 
region, it's my
theory that the locks aren't needed for local purges on PA 2.0. This was 
implemented
previously and isn't relevant to current change.

For global TLB purges, I think the problem is also present on rp3440 
(i.e., disabling
the locks causes problems).  I'm fairly sure that I tried this.
>
>> At least I can confirm, that Dave's patches have made all my systems
>> absolutely stable.
> Can we try the proper fix before things like disabling interrupts.
> copy_page_asm and clear_page_asm don't have the necessary purges at the
> end.  I don't think this ever mattered for clear_page_asm since it's
> only used in the memory backend for pages going to userspace (so not at
> interrupt), but for some reason we've suddenly started using
> copy_page_asm, which could be used at interrupt.
>
> I honestly don't think we should be using copy_page_asm at all.  The
> speed up we get from it isn't realised because we have to flush the
> cache after we've finished to try and make I/D coherence.  This makes
> the call the same cost as the kmapped memcpy but requires twice the
> tmpalias space to be allocated because of the from and to mappings.
>
> James
>
>>> Also, I don't know what happened, but the actual tmpalias theory
>>> requires a TLB purge before and after and I though we used to have them.
>>> The reason is twofold:
>>>
>>>       1. You don't want the caches to speculate in the tmpalias region
>>>       2. A flush after makes the routines interrupt safe (because you can
>>>          interrupt in a tmpalias operation, do another tmpalias
>>>          operation, purge the cache and restart within the non interrupt
>>>          tmpalias and expect everything to work).
I had questioned whether this is true.  In any case, if an interrupt 
occurs, the TLB entry needs
a reload.  So, if latency isn't an issue, it's likely better to disable 
interrupts.  One also doesn't
need after TLB purge.

The copy and clear routines never had TLB purges after the loops. That 
needs fixing
if we follow your suggestion.  At the moment, these routines are unused.

>>>
>>> Trying to disable interrupts sounds like problem 2.  Can we return to
>>> the proper tmpalias operations rather than trying to hack around them?
I'm willing to test to see if adding the purges to clear_user_page and 
copy_user_page helps.
They just need to call flush_kernel_dcache_page_addr instead of 
flush_kernel_dcache_page_asm.

Dave

-- 
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Subject: Re: [PATCH] parisc/PCI: lba: fix: convert to pci_create_root_bus()
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On Thu, May 30, 2013 at 8:10 AM, Helge Deller <deller@gmx.de> wrote:
> This commit dc7dce280a26d069ad5a58bf3da86e5e83415c65
> Author: Bjorn Helgaas <bhelgaas@google.com>
> Date:   Fri Oct 28 16:27:27 2011 -0600
>    parisc/PCI: lba: convert to pci_create_root_bus() for correct root bus
>                     resources
>
>   Supply root bus resources to pci_create_root_bus() so they're correct
>   immediately.  This fixes the problem of "early" and "header" quirks seeing
>   incorrect root bus resources.
>
> forgot to set the IORESOURCE_BUS bus flag which led to incorrect resource
> assignments and a non-working stifb framebuffer on most parisc machines.
>
> LBA 10:1: PCI host bridge to bus 0000:01
> pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
> pci_bus 0000:01: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff])
> pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff])
> pci_bus 0000:01: root bus resource [??? 0x00000001 flags 0x0]
>
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
> index 2ef7103..29f3d7d 100644
> --- a/drivers/parisc/lba_pci.c
> +++ b/drivers/parisc/lba_pci.c
> @@ -1494,7 +1494,7 @@ lba_driver_probe(struct parisc_device *dev)
>
>         pci_add_resource_offset(&resources, &lba_dev->hba.io_space,
>                                 HBA_PORT_BASE(lba_dev->hba.hba_num));
> -       if (lba_dev->hba.elmmio_space.start)
> +       if (lba_dev->hba.elmmio_space.flags)

Commit dc7dce280a added this test of "elmmio_space.start", which
indeed looks like it should be for "flags" instead.

>                 pci_add_resource_offset(&resources, &lba_dev->hba.elmmio_space,
>                                         lba_dev->hba.lmmio_space_offset);
>         if (lba_dev->hba.lmmio_space.flags)
> @@ -1503,6 +1503,7 @@ lba_driver_probe(struct parisc_device *dev)
>         if (lba_dev->hba.gmmio_space.flags)
>                 pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
>
> +       lba_dev->hba.bus_num.flags = IORESOURCE_BUS;

But I think this one is actually related to commit 30aa80da43
("parisc/PCI: register busn_res for root buses").  I would set the
bus_num resource type in lba_legacy_resources() to be parallel with
lba_pat_resources(), as in the attached patch, but this way is OK,
too.

Whichever way you go, both fixes look good to me:

Acked-by: Bjorn Helgaas <bhelgaas@google.com>

>         pci_add_resource(&resources, &lba_dev->hba.bus_num);
>
>         dev->dev.platform_data = lba_dev;

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Subject: Re: [PATCH] parisc/PCI: lba: fix: convert to pci_create_root_bus()
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Hi Bjorn,

On 05/30/2013 08:04 PM, Bjorn Helgaas wrote:
> On Thu, May 30, 2013 at 8:10 AM, Helge Deller <deller@gmx.de> wrote:
>> This commit dc7dce280a26d069ad5a58bf3da86e5e83415c65
>> Author: Bjorn Helgaas <bhelgaas@google.com>
>> Date:   Fri Oct 28 16:27:27 2011 -0600
>>    parisc/PCI: lba: convert to pci_create_root_bus() for correct root bus
>>                     resources
>>
>>   Supply root bus resources to pci_create_root_bus() so they're correct
>>   immediately.  This fixes the problem of "early" and "header" quirks seeing
>>   incorrect root bus resources.
>>
>> forgot to set the IORESOURCE_BUS bus flag which led to incorrect resource
>> assignments and a non-working stifb framebuffer on most parisc machines.
>>
>> LBA 10:1: PCI host bridge to bus 0000:01
>> pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
>> pci_bus 0000:01: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff])
>> pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff])
>> pci_bus 0000:01: root bus resource [??? 0x00000001 flags 0x0]
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
>> index 2ef7103..29f3d7d 100644
>> --- a/drivers/parisc/lba_pci.c
>> +++ b/drivers/parisc/lba_pci.c
>> @@ -1494,7 +1494,7 @@ lba_driver_probe(struct parisc_device *dev)
>>
>>         pci_add_resource_offset(&resources, &lba_dev->hba.io_space,
>>                                 HBA_PORT_BASE(lba_dev->hba.hba_num));
>> -       if (lba_dev->hba.elmmio_space.start)
>> +       if (lba_dev->hba.elmmio_space.flags)
> 
> Commit dc7dce280a added this test of "elmmio_space.start", which
> indeed looks like it should be for "flags" instead.

Great!
Since I have no real knowledge about PCI, could you maybe comment on these
other ".start -> .flags" changes as well ?

--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -668,7 +668,7 @@ lba_fixup_bus(struct pci_bus *bus)
                        BUG();
                }
 
-               if (ldev->hba.elmmio_space.start) {
+               if (ldev->hba.elmmio_space.flags) {
                        err = request_resource(&iomem_resource,
                                        &(ldev->hba.elmmio_space));
                        if (err < 0) {
@@ -993,7 +993,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 
                case PAT_LMMIO:
                        /* used to fix up pre-initialized MEM BARs */
-                       if (!lba_dev->hba.lmmio_space.start) {
+                       if (!lba_dev->hba.lmmio_space.flags) {
                                sprintf(lba_dev->hba.lmmio_name,
                                                "PCI%02x LMMIO",
                                                (int)lba_dev->hba.bus_num.start);
@@ -1001,7 +1001,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
                                        io->start;
                                r = &lba_dev->hba.lmmio_space;
                                r->name = lba_dev->hba.lmmio_name;
-                       } else if (!lba_dev->hba.elmmio_space.start) {
+                       } else if (!lba_dev->hba.elmmio_space.flags) {
                                sprintf(lba_dev->hba.elmmio_name,
                                                "PCI%02x ELMMIO",
                                                (int)lba_dev->hba.bus_num.start);


>> @@ -1503,6 +1503,7 @@ lba_driver_probe(struct parisc_device *dev)
>>         if (lba_dev->hba.gmmio_space.flags)
>>                 pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
>>
>> +       lba_dev->hba.bus_num.flags = IORESOURCE_BUS;
> 
> But I think this one is actually related to commit 30aa80da43
> ("parisc/PCI: register busn_res for root buses").  I would set the
> bus_num resource type in lba_legacy_resources() to be parallel with
> lba_pat_resources(), as in the attached patch, but this way is OK,
> too.
> 
> Whichever way you go, both fixes look good to me:
> 
> Acked-by: Bjorn Helgaas <bhelgaas@google.com>

Thanks, I'll take and push your change. 
Still need to test on another machine though.

Maybe you could help me with another problem which I have with my C3000 as well?

That's the current log:
Found devices:
1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. Allegro W2 at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
7. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
Whole cache flush 492314 cycles, flushing 7983104 bytes 1594427 cycles
Setting cache flush threshold to 180000 (1 CPUs online)
SBA found Astro 2.1 at 0xfffffffffed00000
Elroy version TR4.0 (0x5) found at 0xfffffffffed30000
LBA 10:0: PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
pci_bus 0000:00: root bus resource [mem 0xfffffffff2000000-0xfffffffff23fffff] (bus address [0xf2000000-0xf23fffff])
pci_bus 0000:00: root bus resource [bus 00]
pci 0000:00:0c.0: [1011:0019] type 00 class 0x020000
pci 0000:00:0c.0: reg 10: [io  0x1000-0x107f]
pci 0000:00:0c.0: reg 14: [mem 0xfffffffff2008000-0xfffffffff20083ff]
pci 0000:00:0c.0: reg 30: [mem 0xfffffffff2040000-0xfffffffff207ffff pref]
pci 0000:00:0d.0: [11d4:1889] type 00 class 0x040100
pci 0000:00:0d.0: reg 10: [mem 0xfffffffff200c000-0xfffffffff200c1ff pref]
pci 0000:00:0d.0: reg 14: [mem 0xfffffffff200b000-0xfffffffff200b00f pref]
pci 0000:00:0d.0: reg 18: [mem 0xfffffffff200a000-0xfffffffff200a00f pref]
pci 0000:00:0d.0: reg 1c: [mem 0xfffffffff2009000-0xfffffffff200900f pref]
pci 0000:00:0d.0: supports D2
pci 0000:00:0e.0: [100b:0002] type 00 class 0x01018a
PCI: Enabled native mode for NS87415 (pif=0x8f)
pci 0000:00:0e.0: reg 10: [io  0x0f00-0x0f07]
pci 0000:00:0e.0: reg 14: [io  0x0e00-0x0e03]
pci 0000:00:0e.0: reg 18: [io  0x0d00-0x0d07]
pci 0000:00:0e.0: reg 1c: [io  0x0b00-0x0b03]
pci 0000:00:0e.0: reg 20: [io  0x0a00-0x0a0f]
pci 0000:00:0e.1: [100b:000e] type 00 class 0x068000
pci 0000:00:0e.2: [100b:0012] type 00 class 0x0c0310
pci 0000:00:0e.2: reg 10: [mem 0xfffffffff2007000-0xfffffffff2007fff]
pci 0000:00:0e.2: reg 14: [mem 0xfffffffff2006000-0xfffffffff2006fff]
pci 0000:00:0f.0: [1000:000b] type 00 class 0x010000
pci 0000:00:0f.0: reg 10: [io  0x0900-0x09ff]
pci 0000:00:0f.0: reg 14: [mem 0xfffffffff2005000-0xfffffffff20053ff 64bit]
pci 0000:00:0f.0: reg 1c: [mem 0xfffffffff2002000-0xfffffffff2003fff 64bit]
pci 0000:00:0f.0: supports D1 D2
pci 0000:00:0f.1: [1000:000b] type 00 class 0x010000
pci 0000:00:0f.1: reg 10: [io  0x0800-0x08ff]
pci 0000:00:0f.1: reg 14: [mem 0xfffffffff2004000-0xfffffffff20043ff 64bit]
pci 0000:00:0f.1: reg 1c: [mem 0xfffffffff2000000-0xfffffffff2001fff 64bit]
pci 0000:00:0f.1: supports D1 D2
Elroy version TR4.0 (0x5) found at 0xfffffffffed32000
LBA 10:1: PCI host bridge to bus 0000:01
pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
pci_bus 0000:01: root bus resource [mem 0xfffffffff6000000-0xfffffffff6ffffff] (bus address [0xf6000000-0xf6ffffff])
pci_bus 0000:01: root bus resource [mem 0xfffffffff2400000-0xfffffffff27fffff] (bus address [0xf2400000-0xf27fffff])
pci_bus 0000:01: root bus resource [bus 01-02]
pci 0000:01:04.0: [103c:1005] type 00 class 0x038000
pci 0000:01:04.0: reg 10: [mem 0xf6000000-0xf7ffffff]
pci 0000:01:04.0: reg 30: [mem 0xfffffffff2400000-0xfffffffff240ffff pref]
pci 0000:01:05.0: [121a:0002] type 00 class 0x040000
pci 0000:01:05.0: reg 10: [mem 0xf8000000-0xf8ffffff pref]
pci 0000:01:06.0: [3388:0021] type 01 class 0x060400
pci 0000:01:06.0: supports D1 D2
pci 0000:01:06.0: PME# supported from D1 D2 D3hot D3cold
pci 0000:01:04.0: no compatible bridge window for [mem 0xf6000000-0xf7ffffff]

^^ HERE ^^^
That's actually the problem.
pci 0000:01:04.0, pci 0000:01:05.0 and maybe pci 0000:01:06.0 should be:
pci 0000:00:04.0, pci 0000:00:05.0 and maybe pci 0000:00:06.0.

This problem is documented in lba_pci.c as a bug on the C3000 machines, that
everything listed under PCI02 actually lives under PCI00.
Just search for the lengthy comment in lba_pci.c (search for keyword C3000).

Can you maybe give me some hints how I can build a proper workaround for that problem?
Is there any similar workaround in the pci codebase which I haven't found yet?
The reference code in lba_pci.c doesn't compile any longer, but maybe 
it's possible to reactivate it somehow?


iosapic: no IRTE for 0000:01:04.0 (IRQ not connected?)
pci 0000:01:05.0: no compatible bridge window for [mem 0xf8000000-0xf8ffffff pref]
iosapic: no IRTE for 0000:01:05.0 (IRQ not connected?)
pci_bus 0000:02: busn_res: can not insert [bus 02-ff] under [bus 01-02] (conflicts with (null) [bus 01-02])
pci 0000:02:00.0: [102b:0525] type 00 class 0x030000
pci 0000:02:00.0: reg 10: [mem 0xfa000000-0xfbffffff pref]
pci 0000:02:00.0: reg 14: [mem 0xf9800000-0xf9803fff]
pci 0000:02:00.0: reg 18: [mem 0xf9000000-0xf97fffff]
pci 0000:02:00.0: reg 30: [mem 0xf9820000-0xf983ffff pref]
pci 0000:01:06.0: PCI bridge to [bus 02-ff]

^^^^ HERE ^^^^
Should this be something like (in **): ?
   pci 0000:01:06.0: PCI bridge to *BUS 02-ff* [bus 02-ff
But probably it's related to the C3000 bug mentioned above.
   

pci 0000:01:06.0:   bridge window [io  0x0000-0x0fff]
pci 0000:01:06.0:   bridge window [mem 0xf9000000-0xfbffffff]
pci 0000:01:06.0:   bridge window [mem 0xffffffff00000000-0xffffffff000fffff 64bit pref]
pci 0000:01:06.0: address space collision: [io  0x0000-0x0fff] conflicts with PCI01 Ports [io  0x12000-0x13fff]
pci 0000:01:06.0: no compatible bridge window for [mem 0xf9000000-0xfbffffff]
pci 0000:01:06.0: no compatible bridge window for [mem 0xffffffff00000000-0xffffffff000fffff 64bit pref]
pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]
pci_bus 0000:02: busn_res: [bus 02-ff] end is updated to 02
pci 0000:01:06.0: device not available (can't reserve [io  0x0000-0x0fff])
pci 0000:01:06.0: Error enabling bridge (-22), continuing
Elroy version TR4.0 (0x5) found at 0xfffffffffed38000
LBA 10:4: PCI host bridge to bus 0000:03
pci_bus 0000:03: root bus resource [io  0x28000-0x29fff] (bus address [0x8000-0x9fff])
pci_bus 0000:03: root bus resource [mem 0xfffffffff3000000-0xfffffffff33fffff] (bus address [0xf3000000-0xf33fffff])
pci_bus 0000:03: root bus resource [bus 03]
pci 0000:03:01.0: [12ae:0001] type 00 class 0x020000
pci 0000:03:01.0: reg 10: [mem 0xfffffffff3000000-0xfffffffff3003fff]
pci 0000:03:03.0: [1011:0019] type 00 class 0x020000
pci 0000:03:03.0: reg 10: [io  0x28000-0x2807f]
pci 0000:03:03.0: reg 14: [mem 0xfffffffff3004000-0xfffffffff300407f]
pci 0000:03:03.0: reg 30: [mem 0xfffffffff3040000-0xfffffffff307ffff pref]
Elroy version TR4.0 (0x5) found at 0xfffffffffed3c000
.....

Thanks!
Helge
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: parport0: fix this legacy no-device port driver!
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Fix the above kernel error from parport_announce_port() on 32bit GSC
machines (e.g. B160L). The parport driver requires now a pointer to the
device struct.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
index a5251cb..6e3a60c 100644
--- a/drivers/parport/parport_gsc.c
+++ b/drivers/parport/parport_gsc.c
@@ -234,7 +234,7 @@ static int parport_PS2_supported(struct parport *pb)
 
 struct parport *parport_gsc_probe_port(unsigned long base,
 				       unsigned long base_hi, int irq,
-				       int dma, struct pci_dev *dev)
+				       int dma, struct parisc_device *padev)
 {
 	struct parport_gsc_private *priv;
 	struct parport_operations *ops;
@@ -258,7 +258,6 @@ struct parport *parport_gsc_probe_port(unsigned long base,
 	priv->ctr_writable = 0xff;
 	priv->dma_buf = 0;
 	priv->dma_handle = 0;
-	priv->dev = dev;
 	p->base = base;
 	p->base_hi = base_hi;
 	p->irq = irq;
@@ -282,6 +281,7 @@ struct parport *parport_gsc_probe_port(unsigned long base,
 		return NULL;
 	}
 
+	p->dev = &padev->dev;
 	p->base_hi = base_hi;
 	p->modes = tmp.modes;
 	p->size = (p->modes & PARPORT_MODE_EPP)?8:3;
@@ -373,7 +373,7 @@ static int parport_init_chip(struct parisc_device *dev)
 	}
 	
 	p = parport_gsc_probe_port(port, 0, dev->irq,
-			/* PARPORT_IRQ_NONE */ PARPORT_DMA_NONE, NULL);
+			/* PARPORT_IRQ_NONE */ PARPORT_DMA_NONE, dev);
 	if (p)
 		parport_count++;
 	dev_set_drvdata(&dev->dev, p);
diff --git a/drivers/parport/parport_gsc.h b/drivers/parport/parport_gsc.h
index fc9c37c..8122147 100644
--- a/drivers/parport/parport_gsc.h
+++ b/drivers/parport/parport_gsc.h
@@ -217,6 +217,6 @@ extern void parport_gsc_dec_use_count(void);
 extern struct parport *parport_gsc_probe_port(unsigned long base,
 						unsigned long base_hi,
 						int irq, int dma,
-						struct pci_dev *dev);
+						struct parisc_device *padev);
 
 #endif	/* __DRIVERS_PARPORT_PARPORT_GSC_H */
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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci
Subject: Re: [PATCH] parisc/PCI: lba: fix: convert to pci_create_root_bus()
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[+cc linux-pci]

On Thu, May 30, 2013 at 09:47:11PM +0200, Helge Deller wrote:
> Hi Bjorn,
> 
> On 05/30/2013 08:04 PM, Bjorn Helgaas wrote:
> > On Thu, May 30, 2013 at 8:10 AM, Helge Deller <deller@gmx.de> wrote:
> >> This commit dc7dce280a26d069ad5a58bf3da86e5e83415c65
> >> Author: Bjorn Helgaas <bhelgaas@google.com>
> >> Date:   Fri Oct 28 16:27:27 2011 -0600
> >>    parisc/PCI: lba: convert to pci_create_root_bus() for correct root bus
> >>                     resources
> >>
> >>   Supply root bus resources to pci_create_root_bus() so they're correct
> >>   immediately.  This fixes the problem of "early" and "header" quirks seeing
> >>   incorrect root bus resources.
> >>
> >> forgot to set the IORESOURCE_BUS bus flag which led to incorrect resource
> >> assignments and a non-working stifb framebuffer on most parisc machines.
> >>
> >> LBA 10:1: PCI host bridge to bus 0000:01
> >> pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
> >> pci_bus 0000:01: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff])
> >> pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff])
> >> pci_bus 0000:01: root bus resource [??? 0x00000001 flags 0x0]
> >>
> >> Signed-off-by: Helge Deller <deller@gmx.de>
> >>
> >> diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
> >> index 2ef7103..29f3d7d 100644
> >> --- a/drivers/parisc/lba_pci.c
> >> +++ b/drivers/parisc/lba_pci.c
> >> @@ -1494,7 +1494,7 @@ lba_driver_probe(struct parisc_device *dev)
> >>
> >>         pci_add_resource_offset(&resources, &lba_dev->hba.io_space,
> >>                                 HBA_PORT_BASE(lba_dev->hba.hba_num));
> >> -       if (lba_dev->hba.elmmio_space.start)
> >> +       if (lba_dev->hba.elmmio_space.flags)
> > 
> > Commit dc7dce280a added this test of "elmmio_space.start", which
> > indeed looks like it should be for "flags" instead.
> 
> Great!
> Since I have no real knowledge about PCI, could you maybe comment on these
> other ".start -> .flags" changes as well ?
> 
> --- a/drivers/parisc/lba_pci.c
> +++ b/drivers/parisc/lba_pci.c
> @@ -668,7 +668,7 @@ lba_fixup_bus(struct pci_bus *bus)
>                         BUG();
>                 }
>  
> -               if (ldev->hba.elmmio_space.start) {
> +               if (ldev->hba.elmmio_space.flags) {
>                         err = request_resource(&iomem_resource,
>                                         &(ldev->hba.elmmio_space));
>                         if (err < 0) {
> @@ -993,7 +993,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
>  
>                 case PAT_LMMIO:
>                         /* used to fix up pre-initialized MEM BARs */
> -                       if (!lba_dev->hba.lmmio_space.start) {
> +                       if (!lba_dev->hba.lmmio_space.flags) {
>                                 sprintf(lba_dev->hba.lmmio_name,
>                                                 "PCI%02x LMMIO",
>                                                 (int)lba_dev->hba.bus_num.start);
> @@ -1001,7 +1001,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
>                                         io->start;
>                                 r = &lba_dev->hba.lmmio_space;
>                                 r->name = lba_dev->hba.lmmio_name;
> -                       } else if (!lba_dev->hba.elmmio_space.start) {
> +                       } else if (!lba_dev->hba.elmmio_space.flags) {
>                                 sprintf(lba_dev->hba.elmmio_name,
>                                                 "PCI%02x ELMMIO",
>                                                 (int)lba_dev->hba.bus_num.start);
> 

I think the above changes look fine, too.  I don't think they'll fix
any current problems, but it seems good to make all the tests use
"flags" consistently.

> Maybe you could help me with another problem which I have with my C3000 as well?
> 
> That's the current log:
> Found devices:
> 1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
> 2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
> 3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
> 4. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
> 5. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
> 6. Allegro W2 at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
> 7. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
> CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
> Whole cache flush 492314 cycles, flushing 7983104 bytes 1594427 cycles
> Setting cache flush threshold to 180000 (1 CPUs online)
> SBA found Astro 2.1 at 0xfffffffffed00000

> Elroy version TR4.0 (0x5) found at 0xfffffffffed30000
> LBA 10:0: PCI host bridge to bus 0000:00
> pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
> pci_bus 0000:00: root bus resource [mem 0xfffffffff2000000-0xfffffffff23fffff] (bus address [0xf2000000-0xf23fffff])
> pci_bus 0000:00: root bus resource [bus 00]
> pci 0000:00:0c.0: [1011:0019] type 00 class 0x020000
> pci 0000:00:0c.0: reg 10: [io  0x1000-0x107f]
> pci 0000:00:0c.0: reg 14: [mem 0xfffffffff2008000-0xfffffffff20083ff]
> pci 0000:00:0c.0: reg 30: [mem 0xfffffffff2040000-0xfffffffff207ffff pref]
> pci 0000:00:0d.0: [11d4:1889] type 00 class 0x040100
> pci 0000:00:0d.0: reg 10: [mem 0xfffffffff200c000-0xfffffffff200c1ff pref]
> pci 0000:00:0d.0: reg 14: [mem 0xfffffffff200b000-0xfffffffff200b00f pref]
> pci 0000:00:0d.0: reg 18: [mem 0xfffffffff200a000-0xfffffffff200a00f pref]
> pci 0000:00:0d.0: reg 1c: [mem 0xfffffffff2009000-0xfffffffff200900f pref]
> pci 0000:00:0d.0: supports D2
> pci 0000:00:0e.0: [100b:0002] type 00 class 0x01018a
> PCI: Enabled native mode for NS87415 (pif=0x8f)
> pci 0000:00:0e.0: reg 10: [io  0x0f00-0x0f07]
> pci 0000:00:0e.0: reg 14: [io  0x0e00-0x0e03]
> pci 0000:00:0e.0: reg 18: [io  0x0d00-0x0d07]
> pci 0000:00:0e.0: reg 1c: [io  0x0b00-0x0b03]
> pci 0000:00:0e.0: reg 20: [io  0x0a00-0x0a0f]
> pci 0000:00:0e.1: [100b:000e] type 00 class 0x068000
> pci 0000:00:0e.2: [100b:0012] type 00 class 0x0c0310
> pci 0000:00:0e.2: reg 10: [mem 0xfffffffff2007000-0xfffffffff2007fff]
> pci 0000:00:0e.2: reg 14: [mem 0xfffffffff2006000-0xfffffffff2006fff]
> pci 0000:00:0f.0: [1000:000b] type 00 class 0x010000
> pci 0000:00:0f.0: reg 10: [io  0x0900-0x09ff]
> pci 0000:00:0f.0: reg 14: [mem 0xfffffffff2005000-0xfffffffff20053ff 64bit]
> pci 0000:00:0f.0: reg 1c: [mem 0xfffffffff2002000-0xfffffffff2003fff 64bit]
> pci 0000:00:0f.0: supports D1 D2
> pci 0000:00:0f.1: [1000:000b] type 00 class 0x010000
> pci 0000:00:0f.1: reg 10: [io  0x0800-0x08ff]
> pci 0000:00:0f.1: reg 14: [mem 0xfffffffff2004000-0xfffffffff20043ff 64bit]
> pci 0000:00:0f.1: reg 1c: [mem 0xfffffffff2000000-0xfffffffff2001fff 64bit]
> pci 0000:00:0f.1: supports D1 D2

> Elroy version TR4.0 (0x5) found at 0xfffffffffed32000
> LBA 10:1: PCI host bridge to bus 0000:01
> pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
> pci_bus 0000:01: root bus resource [mem 0xfffffffff6000000-0xfffffffff6ffffff] (bus address [0xf6000000-0xf6ffffff])

16MB window (probably "directed range").

> pci_bus 0000:01: root bus resource [mem 0xfffffffff2400000-0xfffffffff27fffff] (bus address [0xf2400000-0xf27fffff])

4MB window (probably "distributed range").

> pci_bus 0000:01: root bus resource [bus 01-02]
> pci 0000:01:04.0: [103c:1005] type 00 class 0x038000
> pci 0000:01:04.0: reg 10: [mem 0xf6000000-0xf7ffffff]

This BAR requires 32MB, so it doesn't fit inside the window.

Has this device ever worked on Linux, or do you know if it works on HP-UX?
If so, our idea of the LBA 10:1 bridge windows is probably wrong.  There
is no generic mechanism for LBA window workarounds (i.e., nothing like
the PCI quirk mechanism), but you might be able to detect and work
around this issue in lba_pat_resources() or lba_legacy_resources().
Of course, you have to know where to get the correct window info.  It
looks like lba_legacy_resources() reads that directly from hardware
via sba_distributed_lmmio() and sba_directed_lmmio().  I'd be surprised
if the hardware registers gave the wrong values, since they're probably
used directly for routing.

> pci 0000:01:04.0: reg 30: [mem 0xfffffffff2400000-0xfffffffff240ffff pref]
> pci 0000:01:05.0: [121a:0002] type 00 class 0x040000
> pci 0000:01:05.0: reg 10: [mem 0xf8000000-0xf8ffffff pref]

Also wrong because it doesn't fit in any window we know about.

> pci 0000:01:06.0: [3388:0021] type 01 class 0x060400
> pci 0000:01:06.0: supports D1 D2
> pci 0000:01:06.0: PME# supported from D1 D2 D3hot D3cold
> pci 0000:01:04.0: no compatible bridge window for [mem 0xf6000000-0xf7ffffff]
> 
> ^^ HERE ^^^
> That's actually the problem.
> pci 0000:01:04.0, pci 0000:01:05.0 and maybe pci 0000:01:06.0 should be:
> pci 0000:00:04.0, pci 0000:00:05.0 and maybe pci 0000:00:06.0.
> 
> This problem is documented in lba_pci.c as a bug on the C3000 machines, that
> everything listed under PCI02 actually lives under PCI00.
> Just search for the lengthy comment in lba_pci.c (search for keyword C3000).
> 
> Can you maybe give me some hints how I can build a proper workaround for that problem?
> Is there any similar workaround in the pci codebase which I haven't found yet?
> The reference code in lba_pci.c doesn't compile any longer, but maybe 
> it's possible to reactivate it somehow?
> 
> 
> iosapic: no IRTE for 0000:01:04.0 (IRQ not connected?)
> pci 0000:01:05.0: no compatible bridge window for [mem 0xf8000000-0xf8ffffff pref]
> iosapic: no IRTE for 0000:01:05.0 (IRQ not connected?)
> pci_bus 0000:02: busn_res: can not insert [bus 02-ff] under [bus 01-02] (conflicts with (null) [bus 01-02])

The PCI core does know that LBA 10:0 leads only to [bus 01-02], but maybe
we try to set the end of the range higher during enumeration, in case we
find bridges?  We *shouldn't* go past bus 02 though, because then we might
falsely believe a device on bus 03 was under this LBA.  I'm not sure what's
going on here.

> pci 0000:02:00.0: [102b:0525] type 00 class 0x030000
> pci 0000:02:00.0: reg 10: [mem 0xfa000000-0xfbffffff pref]
> pci 0000:02:00.0: reg 14: [mem 0xf9800000-0xf9803fff]
> pci 0000:02:00.0: reg 18: [mem 0xf9000000-0xf97fffff]
> pci 0000:02:00.0: reg 30: [mem 0xf9820000-0xf983ffff pref]

These are all wrong, too.

> pci 0000:01:06.0: PCI bridge to [bus 02-ff]
> 
> ^^^^ HERE ^^^^
> Should this be something like (in **): ?
>    pci 0000:01:06.0: PCI bridge to *BUS 02-ff* [bus 02-ff
> But probably it's related to the C3000 bug mentioned above.
>    
> 
> pci 0000:01:06.0:   bridge window [io  0x0000-0x0fff]

Something's wrong here, too.  The host bridge I/O window is
[io  0x12000-0x13fff] (bus address [0x2000-0x3fff]), and this
P2P bridge window is not inside it.

> pci 0000:01:06.0:   bridge window [mem 0xf9000000-0xfbffffff]

This looks wrong, too.

> pci 0000:01:06.0:   bridge window [mem 0xffffffff00000000-0xffffffff000fffff 64bit pref]
> pci 0000:01:06.0: address space collision: [io  0x0000-0x0fff] conflicts with PCI01 Ports [io  0x12000-0x13fff]
> pci 0000:01:06.0: no compatible bridge window for [mem 0xf9000000-0xfbffffff]
> pci 0000:01:06.0: no compatible bridge window for [mem 0xffffffff00000000-0xffffffff000fffff 64bit pref]
> pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]

I don't know what's going on here -- looks like that resource is all zeroes?

> pci_bus 0000:02: busn_res: [bus 02-ff] end is updated to 02
> pci 0000:01:06.0: device not available (can't reserve [io  0x0000-0x0fff])
> pci 0000:01:06.0: Error enabling bridge (-22), continuing

> Elroy version TR4.0 (0x5) found at 0xfffffffffed38000
> LBA 10:4: PCI host bridge to bus 0000:03
> pci_bus 0000:03: root bus resource [io  0x28000-0x29fff] (bus address [0x8000-0x9fff])
> pci_bus 0000:03: root bus resource [mem 0xfffffffff3000000-0xfffffffff33fffff] (bus address [0xf3000000-0xf33fffff])
> pci_bus 0000:03: root bus resource [bus 03]
> pci 0000:03:01.0: [12ae:0001] type 00 class 0x020000
> pci 0000:03:01.0: reg 10: [mem 0xfffffffff3000000-0xfffffffff3003fff]
> pci 0000:03:03.0: [1011:0019] type 00 class 0x020000
> pci 0000:03:03.0: reg 10: [io  0x28000-0x2807f]
> pci 0000:03:03.0: reg 14: [mem 0xfffffffff3004000-0xfffffffff300407f]
> pci 0000:03:03.0: reg 30: [mem 0xfffffffff3040000-0xfffffffff307ffff pref]
> Elroy version TR4.0 (0x5) found at 0xfffffffffed3c000
> .....

Wow, this is a real train wreck.  Has this configuration ever worked under
Linux?  Does it work under HP-UX?  Maybe it has devices that aren't
officially supported and the firmware did the wrong thing?  (Though it'd
still be nice if Linux did something more sensible than this.)

Sorry, no answers :)

Bjorn
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From - Thu Nov 08 21:09:23 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc/PCI: lba: fix: convert to pci_create_root_bus()
 for correct root bus resources
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On 05/30/2013 11:12 PM, Bjorn Helgaas wrote:
> On Thu, May 30, 2013 at 09:47:11PM +0200, Helge Deller wrote:
>> Maybe you could help me with another problem which I have with my C3000 as well?
>>
>> That's the current log:
>> Found devices:
>> 1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
>> 2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
>> 3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
>> 4. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
>> 5. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
>> 6. Allegro W2 at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
>> 7. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
>> CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
>> Whole cache flush 492314 cycles, flushing 7983104 bytes 1594427 cycles
>> Setting cache flush threshold to 180000 (1 CPUs online)
>> SBA found Astro 2.1 at 0xfffffffffed00000
> 
>> Elroy version TR4.0 (0x5) found at 0xfffffffffed30000
>> LBA 10:0: PCI host bridge to bus 0000:00
>> pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
>> pci_bus 0000:00: root bus resource [mem 0xfffffffff2000000-0xfffffffff23fffff] (bus address [0xf2000000-0xf23fffff])
>> pci_bus 0000:00: root bus resource [bus 00]
>> pci 0000:00:0c.0: [1011:0019] type 00 class 0x020000
>> pci 0000:00:0c.0: reg 10: [io  0x1000-0x107f]
>> pci 0000:00:0c.0: reg 14: [mem 0xfffffffff2008000-0xfffffffff20083ff]
>> pci 0000:00:0c.0: reg 30: [mem 0xfffffffff2040000-0xfffffffff207ffff pref]
>> pci 0000:00:0d.0: [11d4:1889] type 00 class 0x040100
>> pci 0000:00:0d.0: reg 10: [mem 0xfffffffff200c000-0xfffffffff200c1ff pref]
>> pci 0000:00:0d.0: reg 14: [mem 0xfffffffff200b000-0xfffffffff200b00f pref]
>> pci 0000:00:0d.0: reg 18: [mem 0xfffffffff200a000-0xfffffffff200a00f pref]
>> pci 0000:00:0d.0: reg 1c: [mem 0xfffffffff2009000-0xfffffffff200900f pref]
>> pci 0000:00:0d.0: supports D2
>> pci 0000:00:0e.0: [100b:0002] type 00 class 0x01018a
>> PCI: Enabled native mode for NS87415 (pif=0x8f)
>> pci 0000:00:0e.0: reg 10: [io  0x0f00-0x0f07]
>> pci 0000:00:0e.0: reg 14: [io  0x0e00-0x0e03]
>> pci 0000:00:0e.0: reg 18: [io  0x0d00-0x0d07]
>> pci 0000:00:0e.0: reg 1c: [io  0x0b00-0x0b03]
>> pci 0000:00:0e.0: reg 20: [io  0x0a00-0x0a0f]
>> pci 0000:00:0e.1: [100b:000e] type 00 class 0x068000
>> pci 0000:00:0e.2: [100b:0012] type 00 class 0x0c0310
>> pci 0000:00:0e.2: reg 10: [mem 0xfffffffff2007000-0xfffffffff2007fff]
>> pci 0000:00:0e.2: reg 14: [mem 0xfffffffff2006000-0xfffffffff2006fff]
>> pci 0000:00:0f.0: [1000:000b] type 00 class 0x010000
>> pci 0000:00:0f.0: reg 10: [io  0x0900-0x09ff]
>> pci 0000:00:0f.0: reg 14: [mem 0xfffffffff2005000-0xfffffffff20053ff 64bit]
>> pci 0000:00:0f.0: reg 1c: [mem 0xfffffffff2002000-0xfffffffff2003fff 64bit]
>> pci 0000:00:0f.0: supports D1 D2
>> pci 0000:00:0f.1: [1000:000b] type 00 class 0x010000
>> pci 0000:00:0f.1: reg 10: [io  0x0800-0x08ff]
>> pci 0000:00:0f.1: reg 14: [mem 0xfffffffff2004000-0xfffffffff20043ff 64bit]
>> pci 0000:00:0f.1: reg 1c: [mem 0xfffffffff2000000-0xfffffffff2001fff 64bit]
>> pci 0000:00:0f.1: supports D1 D2
> 
>> Elroy version TR4.0 (0x5) found at 0xfffffffffed32000
>> LBA 10:1: PCI host bridge to bus 0000:01
>> pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
>> pci_bus 0000:01: root bus resource [mem 0xfffffffff6000000-0xfffffffff6ffffff] (bus address [0xf6000000-0xf6ffffff])
> 
> 16MB window (probably "directed range").
> 
>> pci_bus 0000:01: root bus resource [mem 0xfffffffff2400000-0xfffffffff27fffff] (bus address [0xf2400000-0xf27fffff])
> 
> 4MB window (probably "distributed range").
> 
>> pci_bus 0000:01: root bus resource [bus 01-02]
>> pci 0000:01:04.0: [103c:1005] type 00 class 0x038000
>> pci 0000:01:04.0: reg 10: [mem 0xf6000000-0xf7ffffff]
> 
> This BAR requires 32MB, so it doesn't fit inside the window.
> 
> Has this device ever worked on Linux, or do you know if it works on HP-UX?

Yes, that's a simple HP graphics framebuffer card for HP-UX:
01:04.0 Display controller: Hewlett-Packard Company A4977A Visualize EG (rev 03)
        Flags: 66MHz, medium devsel
        Memory at f6000000 (32-bit, non-prefetchable) [size=32M]
        Expansion ROM at f2400000 [disabled] [size=64K]

> If so, our idea of the LBA 10:1 bridge windows is probably wrong.  There
> is no generic mechanism for LBA window workarounds (i.e., nothing like
> the PCI quirk mechanism), but you might be able to detect and work
> around this issue in lba_pat_resources() or lba_legacy_resources().
> Of course, you have to know where to get the correct window info.  It
> looks like lba_legacy_resources() reads that directly from hardware
> via sba_distributed_lmmio() and sba_directed_lmmio().  I'd be surprised
> if the hardware registers gave the wrong values, since they're probably
> used directly for routing.
> 
>> pci 0000:01:04.0: reg 30: [mem 0xfffffffff2400000-0xfffffffff240ffff pref]
>> pci 0000:01:05.0: [121a:0002] type 00 class 0x040000
>> pci 0000:01:05.0: reg 10: [mem 0xf8000000-0xf8ffffff pref]
> 
> Also wrong because it doesn't fit in any window we know about.

01:05.0 Multimedia video controller: 3Dfx Interactive, Inc. Voodoo 2 (rev 02)
        Flags: fast devsel
        Memory at f8000000 (32-bit, prefetchable) [size=16M]

-> from PC. IIRC, it worked once for me under Linux in this machine (when the C3000 workaround worked).

>> pci 0000:01:06.0: [3388:0021] type 01 class 0x060400
>> pci 0000:01:06.0: supports D1 D2
>> pci 0000:01:06.0: PME# supported from D1 D2 D3hot D3cold

01:06.0 PCI bridge: Hint Corp HB6 Universal PCI-PCI bridge (non-transparent mode) (rev 12) (prog-if 00 [Normal decode])
        Flags: bus master, fast Back2Back, medium devsel, latency 255
        Bus: primary=01, secondary=02, subordinate=02, sec-latency=255
        I/O behind bridge: 00000000-00000fff
        Memory behind bridge: f9000000-fbffffff
        Prefetchable memory behind bridge: ffffffff00000000-ffffffff000fffff
        Capabilities: [80] Power Management version 2
        Capabilities: [90] CompactPCI hot-swap <?>
        Capabilities: [a0] Vital Product Data

-> I don't know any longer what that is.
Will plug it out.

>> pci 0000:01:04.0: no compatible bridge window for [mem 0xf6000000-0xf7ffffff]
>>
>> ^^ HERE ^^^
>> That's actually the problem.
>> pci 0000:01:04.0, pci 0000:01:05.0 and maybe pci 0000:01:06.0 should be:
>> pci 0000:00:04.0, pci 0000:00:05.0 and maybe pci 0000:00:06.0.
>>
>> This problem is documented in lba_pci.c as a bug on the C3000 machines, that
>> everything listed under PCI02 actually lives under PCI00.
>> Just search for the lengthy comment in lba_pci.c (search for keyword C3000).
>>
>> Can you maybe give me some hints how I can build a proper workaround for that problem?
>> Is there any similar workaround in the pci codebase which I haven't found yet?
>> The reference code in lba_pci.c doesn't compile any longer, but maybe 
>> it's possible to reactivate it somehow?
>>
>>
>> iosapic: no IRTE for 0000:01:04.0 (IRQ not connected?)
>> pci 0000:01:05.0: no compatible bridge window for [mem 0xf8000000-0xf8ffffff pref]
>> iosapic: no IRTE for 0000:01:05.0 (IRQ not connected?)
>> pci_bus 0000:02: busn_res: can not insert [bus 02-ff] under [bus 01-02] (conflicts with (null) [bus 01-02])
> 
> The PCI core does know that LBA 10:0 leads only to [bus 01-02], but maybe
> we try to set the end of the range higher during enumeration, in case we
> find bridges?  We *shouldn't* go past bus 02 though, because then we might
> falsely believe a device on bus 03 was under this LBA.  I'm not sure what's
> going on here.
> 
>> pci 0000:02:00.0: [102b:0525] type 00 class 0x030000
>> pci 0000:02:00.0: reg 10: [mem 0xfa000000-0xfbffffff pref]
>> pci 0000:02:00.0: reg 14: [mem 0xf9800000-0xf9803fff]
>> pci 0000:02:00.0: reg 18: [mem 0xf9000000-0xf97fffff]
>> pci 0000:02:00.0: reg 30: [mem 0xf9820000-0xf983ffff pref]
> 
> These are all wrong, too.
> 
>> pci 0000:01:06.0: PCI bridge to [bus 02-ff]
>>
>> ^^^^ HERE ^^^^
>> Should this be something like (in **): ?
>>    pci 0000:01:06.0: PCI bridge to *BUS 02-ff* [bus 02-ff
>> But probably it's related to the C3000 bug mentioned above.
>>    
>>
>> pci 0000:01:06.0:   bridge window [io  0x0000-0x0fff]
> 
> Something's wrong here, too.  The host bridge I/O window is
> [io  0x12000-0x13fff] (bus address [0x2000-0x3fff]), and this
> P2P bridge window is not inside it.
> 
>> pci 0000:01:06.0:   bridge window [mem 0xf9000000-0xfbffffff]
> 
> This looks wrong, too.
> 
>> pci 0000:01:06.0:   bridge window [mem 0xffffffff00000000-0xffffffff000fffff 64bit pref]
>> pci 0000:01:06.0: address space collision: [io  0x0000-0x0fff] conflicts with PCI01 Ports [io  0x12000-0x13fff]
>> pci 0000:01:06.0: no compatible bridge window for [mem 0xf9000000-0xfbffffff]
>> pci 0000:01:06.0: no compatible bridge window for [mem 0xffffffff00000000-0xffffffff000fffff 64bit pref]
>> pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]
> 
> I don't know what's going on here -- looks like that resource is all zeroes?
> 
>> pci_bus 0000:02: busn_res: [bus 02-ff] end is updated to 02
>> pci 0000:01:06.0: device not available (can't reserve [io  0x0000-0x0fff])
>> pci 0000:01:06.0: Error enabling bridge (-22), continuing

>> Elroy version TR4.0 (0x5) found at 0xfffffffffed38000
>> LBA 10:4: PCI host bridge to bus 0000:03
>> pci_bus 0000:03: root bus resource [io  0x28000-0x29fff] (bus address [0x8000-0x9fff])
>> pci_bus 0000:03: root bus resource [mem 0xfffffffff3000000-0xfffffffff33fffff] (bus address [0xf3000000-0xf33fffff])
>> pci_bus 0000:03: root bus resource [bus 03]
>> pci 0000:03:01.0: [12ae:0001] type 00 class 0x020000
>> pci 0000:03:01.0: reg 10: [mem 0xfffffffff3000000-0xfffffffff3003fff]
>> pci 0000:03:03.0: [1011:0019] type 00 class 0x020000
>> pci 0000:03:03.0: reg 10: [io  0x28000-0x2807f]
>> pci 0000:03:03.0: reg 14: [mem 0xfffffffff3004000-0xfffffffff300407f]
>> pci 0000:03:03.0: reg 30: [mem 0xfffffffff3040000-0xfffffffff307ffff pref]
>> Elroy version TR4.0 (0x5) found at 0xfffffffffed3c000
>> .....
> 
> Wow, this is a real train wreck.  Has this configuration ever worked under
> Linux?  Does it work under HP-UX?

I think all devices beside 01:06.0 worked under Linux in the past.
I'll take out the 01:06.0 and try again.

>  Maybe it has devices that aren't
> officially supported and the firmware did the wrong thing?  (Though it'd
> still be nice if Linux did something more sensible than this.)

Yes :-)

Helge
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From - Thu Nov 08 21:09:23 2018
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From: Dmitry Kasatkin <dmitry.s.kasatkin@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] MPILIB: disable usage of floating point registers on parisc
Date: Fri, 31 May 2013 17:43:19 +0300
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Sorry. I am not at @intel.com any more. Did not see it.
Will handle.

- Dmitry


On Mon, May 6, 2013 at 1:08 AM, Helge Deller <deller@gmx.de> wrote:
> The umul_ppmm() macro for parisc uses the xmpyu assembler statement
> which does calculation via a floating point register.
>
> But usage of floating point registers inside the Linux kernel are not
> allowed and gcc will stop compilation due to the -mdisable-fpregs
> compiler option.
>
> Fix this by disabling the umul_ppmm() and udiv_qrnnd() macros. The
> mpilib will then use the generic built-in implementations instead.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/lib/mpi/longlong.h b/lib/mpi/longlong.h
> index 095ab15..d411355 100644
> --- a/lib/mpi/longlong.h
> +++ b/lib/mpi/longlong.h
> @@ -318,7 +318,8 @@ extern UDItype __udiv_qrnnd();
>              "rM" ((USItype)(bh)), \
>              "rM" ((USItype)(al)), \
>              "rM" ((USItype)(bl)))
> -#if defined(_PA_RISC1_1)
> +#if 0 && defined(_PA_RISC1_1)
> +/* xmpyu uses floating point register which is not allowed in Linux kernel. */
>  #define umul_ppmm(wh, wl, u, v) \
>  do { \
>         union {UDItype __ll; \
> @@ -337,7 +338,7 @@ do { \
>  #define UMUL_TIME 40
>  #define UDIV_TIME 80
>  #endif
> -#ifndef LONGLONG_STANDALONE
> +#if 0 /* #ifndef LONGLONG_STANDALONE */
>  #define udiv_qrnnd(q, r, n1, n0, d) \
>  do { USItype __r; \
>         (q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \
> --
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc/PCI: lba: fix: convert to pci_create_root_bus()
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On 05/30/2013 11:40 PM, Helge Deller wrote:
> On 05/30/2013 11:12 PM, Bjorn Helgaas wrote:
>> On Thu, May 30, 2013 at 09:47:11PM +0200, Helge Deller wrote:
>>> Maybe you could help me with another problem which I have with my C3000 as well?
>>>
>>> That's the current log:
>>> Found devices:
>>> 1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
>>> 2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
>>> 3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
>>> 4. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
>>> 5. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
>>> 6. Allegro W2 at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
>>> 7. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
>>> CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
>>> Whole cache flush 492314 cycles, flushing 7983104 bytes 1594427 cycles
>>> Setting cache flush threshold to 180000 (1 CPUs online)
>>> SBA found Astro 2.1 at 0xfffffffffed00000
>>
>>> Elroy version TR4.0 (0x5) found at 0xfffffffffed30000
>>> LBA 10:0: PCI host bridge to bus 0000:00
>>> pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
>>> pci_bus 0000:00: root bus resource [mem 0xfffffffff2000000-0xfffffffff23fffff] (bus address [0xf2000000-0xf23fffff])
>>> pci_bus 0000:00: root bus resource [bus 00]
>>> pci 0000:00:0c.0: [1011:0019] type 00 class 0x020000
>>> pci 0000:00:0c.0: reg 10: [io  0x1000-0x107f]
>>> pci 0000:00:0c.0: reg 14: [mem 0xfffffffff2008000-0xfffffffff20083ff]
>>> pci 0000:00:0c.0: reg 30: [mem 0xfffffffff2040000-0xfffffffff207ffff pref]
>>> pci 0000:00:0d.0: [11d4:1889] type 00 class 0x040100
>>> pci 0000:00:0d.0: reg 10: [mem 0xfffffffff200c000-0xfffffffff200c1ff pref]
>>> pci 0000:00:0d.0: reg 14: [mem 0xfffffffff200b000-0xfffffffff200b00f pref]
>>> pci 0000:00:0d.0: reg 18: [mem 0xfffffffff200a000-0xfffffffff200a00f pref]
>>> pci 0000:00:0d.0: reg 1c: [mem 0xfffffffff2009000-0xfffffffff200900f pref]
>>> pci 0000:00:0d.0: supports D2
>>> pci 0000:00:0e.0: [100b:0002] type 00 class 0x01018a
>>> PCI: Enabled native mode for NS87415 (pif=0x8f)
>>> pci 0000:00:0e.0: reg 10: [io  0x0f00-0x0f07]
>>> pci 0000:00:0e.0: reg 14: [io  0x0e00-0x0e03]
>>> pci 0000:00:0e.0: reg 18: [io  0x0d00-0x0d07]
>>> pci 0000:00:0e.0: reg 1c: [io  0x0b00-0x0b03]
>>> pci 0000:00:0e.0: reg 20: [io  0x0a00-0x0a0f]
>>> pci 0000:00:0e.1: [100b:000e] type 00 class 0x068000
>>> pci 0000:00:0e.2: [100b:0012] type 00 class 0x0c0310
>>> pci 0000:00:0e.2: reg 10: [mem 0xfffffffff2007000-0xfffffffff2007fff]
>>> pci 0000:00:0e.2: reg 14: [mem 0xfffffffff2006000-0xfffffffff2006fff]
>>> pci 0000:00:0f.0: [1000:000b] type 00 class 0x010000
>>> pci 0000:00:0f.0: reg 10: [io  0x0900-0x09ff]
>>> pci 0000:00:0f.0: reg 14: [mem 0xfffffffff2005000-0xfffffffff20053ff 64bit]
>>> pci 0000:00:0f.0: reg 1c: [mem 0xfffffffff2002000-0xfffffffff2003fff 64bit]
>>> pci 0000:00:0f.0: supports D1 D2
>>> pci 0000:00:0f.1: [1000:000b] type 00 class 0x010000
>>> pci 0000:00:0f.1: reg 10: [io  0x0800-0x08ff]
>>> pci 0000:00:0f.1: reg 14: [mem 0xfffffffff2004000-0xfffffffff20043ff 64bit]
>>> pci 0000:00:0f.1: reg 1c: [mem 0xfffffffff2000000-0xfffffffff2001fff 64bit]
>>> pci 0000:00:0f.1: supports D1 D2
>>
>>> Elroy version TR4.0 (0x5) found at 0xfffffffffed32000
>>> LBA 10:1: PCI host bridge to bus 0000:01
>>> pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
>>> pci_bus 0000:01: root bus resource [mem 0xfffffffff6000000-0xfffffffff6ffffff] (bus address [0xf6000000-0xf6ffffff])
>>
>> 16MB window (probably "directed range").
>>
>>> pci_bus 0000:01: root bus resource [mem 0xfffffffff2400000-0xfffffffff27fffff] (bus address [0xf2400000-0xf27fffff])
>>
>> 4MB window (probably "distributed range").
>>
>>> pci_bus 0000:01: root bus resource [bus 01-02]
>>> pci 0000:01:04.0: [103c:1005] type 00 class 0x038000
>>> pci 0000:01:04.0: reg 10: [mem 0xf6000000-0xf7ffffff]
>>
>> This BAR requires 32MB, so it doesn't fit inside the window.
>>
>> Has this device ever worked on Linux, or do you know if it works on HP-UX?
> 
> Yes, that's a simple HP graphics framebuffer card for HP-UX:
> 01:04.0 Display controller: Hewlett-Packard Company A4977A Visualize EG (rev 03)
>         Flags: 66MHz, medium devsel
>         Memory at f6000000 (32-bit, non-prefetchable) [size=32M]
>         Expansion ROM at f2400000 [disabled] [size=64K]
> 
>> If so, our idea of the LBA 10:1 bridge windows is probably wrong.  There
>> is no generic mechanism for LBA window workarounds (i.e., nothing like
>> the PCI quirk mechanism), but you might be able to detect and work
>> around this issue in lba_pat_resources() or lba_legacy_resources().
>> Of course, you have to know where to get the correct window info.  It
>> looks like lba_legacy_resources() reads that directly from hardware
>> via sba_distributed_lmmio() and sba_directed_lmmio().  I'd be surprised
>> if the hardware registers gave the wrong values, since they're probably
>> used directly for routing.
>>
>>> pci 0000:01:04.0: reg 30: [mem 0xfffffffff2400000-0xfffffffff240ffff pref]
>>> pci 0000:01:05.0: [121a:0002] type 00 class 0x040000
>>> pci 0000:01:05.0: reg 10: [mem 0xf8000000-0xf8ffffff pref]
>>
>> Also wrong because it doesn't fit in any window we know about.
> 
> 01:05.0 Multimedia video controller: 3Dfx Interactive, Inc. Voodoo 2 (rev 02)
>         Flags: fast devsel
>         Memory at f8000000 (32-bit, prefetchable) [size=16M]
> 
> -> from PC. IIRC, it worked once for me under Linux in this machine (when the C3000 workaround worked).
> 
>>> pci 0000:01:06.0: [3388:0021] type 01 class 0x060400
>>> pci 0000:01:06.0: supports D1 D2
>>> pci 0000:01:06.0: PME# supported from D1 D2 D3hot D3cold
> 
> 01:06.0 PCI bridge: Hint Corp HB6 Universal PCI-PCI bridge (non-transparent mode) (rev 12) (prog-if 00 [Normal decode])
>         Flags: bus master, fast Back2Back, medium devsel, latency 255
>         Bus: primary=01, secondary=02, subordinate=02, sec-latency=255
>         I/O behind bridge: 00000000-00000fff
>         Memory behind bridge: f9000000-fbffffff
>         Prefetchable memory behind bridge: ffffffff00000000-ffffffff000fffff
>         Capabilities: [80] Power Management version 2
>         Capabilities: [90] CompactPCI hot-swap <?>
>         Capabilities: [a0] Vital Product Data
> 
> -> I don't know any longer what that is.
> Will plug it out.
> 
>>> pci 0000:01:04.0: no compatible bridge window for [mem 0xf6000000-0xf7ffffff]
>>>
>>> ^^ HERE ^^^
>>> That's actually the problem.
>>> pci 0000:01:04.0, pci 0000:01:05.0 and maybe pci 0000:01:06.0 should be:
>>> pci 0000:00:04.0, pci 0000:00:05.0 and maybe pci 0000:00:06.0.
>>>
>>> This problem is documented in lba_pci.c as a bug on the C3000 machines, that
>>> everything listed under PCI02 actually lives under PCI00.
>>> Just search for the lengthy comment in lba_pci.c (search for keyword C3000).
>>>
>>> Can you maybe give me some hints how I can build a proper workaround for that problem?
>>> Is there any similar workaround in the pci codebase which I haven't found yet?
>>> The reference code in lba_pci.c doesn't compile any longer, but maybe 
>>> it's possible to reactivate it somehow?
>>>
>>>
>>> iosapic: no IRTE for 0000:01:04.0 (IRQ not connected?)
>>> pci 0000:01:05.0: no compatible bridge window for [mem 0xf8000000-0xf8ffffff pref]
>>> iosapic: no IRTE for 0000:01:05.0 (IRQ not connected?)
>>> pci_bus 0000:02: busn_res: can not insert [bus 02-ff] under [bus 01-02] (conflicts with (null) [bus 01-02])
>>
>> The PCI core does know that LBA 10:0 leads only to [bus 01-02], but maybe
>> we try to set the end of the range higher during enumeration, in case we
>> find bridges?  We *shouldn't* go past bus 02 though, because then we might
>> falsely believe a device on bus 03 was under this LBA.  I'm not sure what's
>> going on here.
>>
>>> pci 0000:02:00.0: [102b:0525] type 00 class 0x030000
>>> pci 0000:02:00.0: reg 10: [mem 0xfa000000-0xfbffffff pref]
>>> pci 0000:02:00.0: reg 14: [mem 0xf9800000-0xf9803fff]
>>> pci 0000:02:00.0: reg 18: [mem 0xf9000000-0xf97fffff]
>>> pci 0000:02:00.0: reg 30: [mem 0xf9820000-0xf983ffff pref]
>>
>> These are all wrong, too.
>>
>>> pci 0000:01:06.0: PCI bridge to [bus 02-ff]
>>>
>>> ^^^^ HERE ^^^^
>>> Should this be something like (in **): ?
>>>    pci 0000:01:06.0: PCI bridge to *BUS 02-ff* [bus 02-ff
>>> But probably it's related to the C3000 bug mentioned above.
>>>    
>>>
>>> pci 0000:01:06.0:   bridge window [io  0x0000-0x0fff]
>>
>> Something's wrong here, too.  The host bridge I/O window is
>> [io  0x12000-0x13fff] (bus address [0x2000-0x3fff]), and this
>> P2P bridge window is not inside it.
>>
>>> pci 0000:01:06.0:   bridge window [mem 0xf9000000-0xfbffffff]
>>
>> This looks wrong, too.
>>
>>> pci 0000:01:06.0:   bridge window [mem 0xffffffff00000000-0xffffffff000fffff 64bit pref]
>>> pci 0000:01:06.0: address space collision: [io  0x0000-0x0fff] conflicts with PCI01 Ports [io  0x12000-0x13fff]
>>> pci 0000:01:06.0: no compatible bridge window for [mem 0xf9000000-0xfbffffff]
>>> pci 0000:01:06.0: no compatible bridge window for [mem 0xffffffff00000000-0xffffffff000fffff 64bit pref]
>>> pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]
>>
>> I don't know what's going on here -- looks like that resource is all zeroes?
>>
>>> pci_bus 0000:02: busn_res: [bus 02-ff] end is updated to 02
>>> pci 0000:01:06.0: device not available (can't reserve [io  0x0000-0x0fff])
>>> pci 0000:01:06.0: Error enabling bridge (-22), continuing
> 
>>> Elroy version TR4.0 (0x5) found at 0xfffffffffed38000
>>> LBA 10:4: PCI host bridge to bus 0000:03
>>> pci_bus 0000:03: root bus resource [io  0x28000-0x29fff] (bus address [0x8000-0x9fff])
>>> pci_bus 0000:03: root bus resource [mem 0xfffffffff3000000-0xfffffffff33fffff] (bus address [0xf3000000-0xf33fffff])
>>> pci_bus 0000:03: root bus resource [bus 03]
>>> pci 0000:03:01.0: [12ae:0001] type 00 class 0x020000
>>> pci 0000:03:01.0: reg 10: [mem 0xfffffffff3000000-0xfffffffff3003fff]
>>> pci 0000:03:03.0: [1011:0019] type 00 class 0x020000
>>> pci 0000:03:03.0: reg 10: [io  0x28000-0x2807f]
>>> pci 0000:03:03.0: reg 14: [mem 0xfffffffff3004000-0xfffffffff300407f]
>>> pci 0000:03:03.0: reg 30: [mem 0xfffffffff3040000-0xfffffffff307ffff pref]
>>> Elroy version TR4.0 (0x5) found at 0xfffffffffed3c000
>>> .....
>>
>> Wow, this is a real train wreck.  Has this configuration ever worked under
>> Linux?  Does it work under HP-UX?
> 
> I think all devices beside 01:06.0 worked under Linux in the past.
> I'll take out the 01:06.0 and try again.
> 
>>  Maybe it has devices that aren't
>> officially supported and the firmware did the wrong thing?  (Though it'd
>> still be nice if Linux did something more sensible than this.)

Ok, I removed all unnecessary cards, incl. 100MBit NIC, 1000MBit NIC, Matrox G200 and a Visualize FX.

Now it works nicely and as expected.
Even the Visualize EG graphics card and the Voodo2 work (which were my main problem) :-)


THANKS!


Found devices:
1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. Allegro W2 at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
7. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
SBA found Astro 2.1 at 0xfffffffffed00000
Elroy version TR4.0 (0x5) found at 0xfffffffffed30000
LBA 10:0: PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
pci_bus 0000:00: root bus resource [mem 0xfffffffff4000000-0xfffffffff47fffff] (bus address [0xf4000000-0xf47fffff])
pci_bus 0000:00: root bus resource [bus 00]
pci 0000:00:0c.0: [1011:0019] type 00 class 0x020000
pci 0000:00:0c.0: reg 10: [io  0x1000-0x107f]
pci 0000:00:0c.0: reg 14: [mem 0xfffffffff4008000-0xfffffffff40083ff]
pci 0000:00:0c.0: reg 30: [mem 0xfffffffff4040000-0xfffffffff407ffff pref]
pci 0000:00:0d.0: [11d4:1889] type 00 class 0x040100
pci 0000:00:0d.0: reg 10: [mem 0xfffffffff400c000-0xfffffffff400c1ff pref]
pci 0000:00:0d.0: reg 14: [mem 0xfffffffff400b000-0xfffffffff400b00f pref]
pci 0000:00:0d.0: reg 18: [mem 0xfffffffff400a000-0xfffffffff400a00f pref]
pci 0000:00:0d.0: reg 1c: [mem 0xfffffffff4009000-0xfffffffff400900f pref]
pci 0000:00:0d.0: supports D2
pci 0000:00:0e.0: [100b:0002] type 00 class 0x01018a
PCI: Enabled native mode for NS87415 (pif=0x8f)
pci 0000:00:0e.0: reg 10: [io  0x0f00-0x0f07]
pci 0000:00:0e.0: reg 14: [io  0x0e00-0x0e03]
pci 0000:00:0e.0: reg 18: [io  0x0d00-0x0d07]
pci 0000:00:0e.0: reg 1c: [io  0x0b00-0x0b03]
pci 0000:00:0e.0: reg 20: [io  0x0a00-0x0a0f]
pci 0000:00:0e.1: [100b:000e] type 00 class 0x068000
pci 0000:00:0e.2: [100b:0012] type 00 class 0x0c0310
pci 0000:00:0e.2: reg 10: [mem 0xfffffffff4007000-0xfffffffff4007fff]
pci 0000:00:0e.2: reg 14: [mem 0xfffffffff4006000-0xfffffffff4006fff]
pci 0000:00:0f.0: [1000:000b] type 00 class 0x010000
pci 0000:00:0f.0: reg 10: [io  0x0900-0x09ff]
pci 0000:00:0f.0: reg 14: [mem 0xfffffffff4005000-0xfffffffff40053ff 64bit]
pci 0000:00:0f.0: reg 1c: [mem 0xfffffffff4002000-0xfffffffff4003fff 64bit]
pci 0000:00:0f.0: supports D1 D2
pci 0000:00:0f.1: [1000:000b] type 00 class 0x010000
pci 0000:00:0f.1: reg 10: [io  0x0800-0x08ff]
pci 0000:00:0f.1: reg 14: [mem 0xfffffffff4004000-0xfffffffff40043ff 64bit]
pci 0000:00:0f.1: reg 1c: [mem 0xfffffffff4000000-0xfffffffff4001fff 64bit]
pci 0000:00:0f.1: supports D1 D2
Elroy version TR4.0 (0x5) found at 0xfffffffffed32000
LBA 10:1: PCI host bridge to bus 0000:01
pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
pci_bus 0000:01: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff])
pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff])
pci_bus 0000:01: root bus resource [bus 01]
pci 0000:01:04.0: [103c:1005] type 00 class 0x038000
pci 0000:01:04.0: reg 10: [mem 0xfffffffffa000000-0xfffffffffbffffff]
pci 0000:01:04.0: reg 30: [mem 0xfffffffff4800000-0xfffffffff480ffff pref]
iosapic: hpa not registered for 0000:01:04.0
Elroy version TR4.0 (0x5) found at 0xfffffffffed38000
LBA 10:4: PCI host bridge to bus 0000:02
pci_bus 0000:02: root bus resource [io  0x28000-0x29fff] (bus address [0x8000-0x9fff])
pci_bus 0000:02: root bus resource [mem 0xfffffffff9000000-0xfffffffff9ffffff] (bus address [0xf9000000-0xf9ffffff])
pci_bus 0000:02: root bus resource [mem 0xfffffffff6000000-0xfffffffff67fffff] (bus address [0xf6000000-0xf67fffff])
pci_bus 0000:02: root bus resource [bus 02]
pci 0000:02:03.0: [121a:0002] type 00 class 0x040000
pci 0000:02:03.0: reg 10: [mem 0xfffffffff9000000-0xfffffffff9ffffff pref]
iosapic: hpa not registered for 0000:02:03.0
Elroy version TR4.0 (0x5) found at 0xfffffffffed3c000
LBA 10:6: PCI host bridge to bus 0000:03
pci_bus 0000:03: root bus resource [io  0x3c000-0x3dfff] (bus address [0xc000-0xdfff])
pci_bus 0000:03: root bus resource [mem 0xfffffffff7000000-0xfffffffff77fffff] (bus address [0xf7000000-0xf77fffff])
pci_bus 0000:03: root bus resource [bus 03]
.....
.....
STI GSC/PCI core graphics driver Version 0.9a
sti 0000:01:04.0: enabling SERR and PARITY (0002 -> 0142)
STI PCI graphic ROM found at fffffffff4800000 (64 kB), fb at fffffffffa000000 (32 MB)
    id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
    graphics card name: PCI_GRAFFITIX1024
sticon: Initializing STI text console.
Console: switching to colour STI console 128x48
Console: switching to colour frame buffer device 128x48
fb0: stifb 1024x768-8 frame buffer device, PCI_GRAFFITIX1024, id: 2d08c0a7, mmio: 0xfffffffffa100000
sstfb 0000:02:03.0: enabling SERR and PARITY (0002 -> 0142)
Voodoo2 (revision 2) with ICS ICS5342 dac
framebuffer at 0xfffffffff9400000, mapped to 0x0000000000700000, size 2MB
fb1: Voodoo2 frame buffer device at 0x0000000000700000
.....

lspci -v:
---------
00:0c.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
	Subsystem: Hewlett-Packard Company Device 104f
	Flags: bus master, medium devsel, latency 255, IRQ 65
	I/O ports at 1000 [size=128]
	Memory at fffffffff4008000 (32-bit, non-prefetchable) [size=1K]
	Expansion ROM at fffffffff4040000 [disabled] [size=256K]
	Kernel driver in use: tulip

00:0d.0 Multimedia audio controller: Analog Devices AD1889 sound chip
	Subsystem: Analog Devices AD1889 sound chip
	Flags: bus master, medium devsel, latency 255, IRQ 66
	Memory at fffffffff400c000 (32-bit, prefetchable) [size=512]
	Memory at fffffffff400b000 (32-bit, prefetchable) [size=16]
	Memory at fffffffff400a000 (32-bit, prefetchable) [size=16]
	Memory at fffffffff4009000 (32-bit, prefetchable) [size=16]
	Capabilities: [dc] Power Management version 1

00:0e.0 IDE interface: National Semiconductor Corporation 87415/87560 IDE (rev 03) (prog-if 8f [Master SecP SecO PriP PriO])
	Flags: bus master, medium devsel, latency 255, IRQ 7
	I/O ports at 0f00 [size=8]
	I/O ports at 0e00 [size=4]
	I/O ports at 0d00 [size=8]
	I/O ports at 0b00 [size=4]
	I/O ports at 0a00 [size=16]
	Kernel driver in use: NS87415_IDE

00:0e.1 Bridge: National Semiconductor Corporation 87560 Legacy I/O (rev 01)
	Flags: bus master, medium devsel, latency 255, IRQ 67
	Kernel driver in use: SuperIO

00:0e.2 USB controller: National Semiconductor Corporation USB Controller (rev 02) (prog-if 10 [OHCI])
	Flags: bus master, medium devsel, latency 240, IRQ 1
	Memory at fffffffff4007000 (32-bit, non-prefetchable) [size=4K]
	Memory at fffffffff4006000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci_hcd

00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53C896/897 (rev 07)
	Subsystem: LSI Logic / Symbios Logic LSI53C896/7 PCI to Dual Channel Ultra2 SCSI Multifunction Controller
	Flags: bus master, medium devsel, latency 255, IRQ 68
	I/O ports at 0900 [size=256]
	Memory at fffffffff4005000 (64-bit, non-prefetchable) [size=1K]
	Memory at fffffffff4002000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: [40] Power Management version 2
	Kernel driver in use: sym53c8xx

00:0f.1 SCSI storage controller: LSI Logic / Symbios Logic 53C896/897 (rev 07)
	Subsystem: LSI Logic / Symbios Logic LSI53C896/7 PCI to Dual Channel Ultra2 SCSI Multifunction Controller
	Flags: bus master, medium devsel, latency 255, IRQ 68
	I/O ports at 0800 [size=256]
	Memory at fffffffff4004000 (64-bit, non-prefetchable) [size=1K]
	Memory at fffffffff4000000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: [40] Power Management version 2
	Kernel driver in use: sym53c8xx

01:04.0 Display controller: Hewlett-Packard Company A4977A Visualize EG (rev 03)
	Flags: 66MHz, medium devsel
	Memory at fffffffffa000000 (32-bit, non-prefetchable) [size=32M]
	Expansion ROM at fffffffff4800000 [disabled] [size=64K]
	Kernel driver in use: sti

02:03.0 Multimedia video controller: 3Dfx Interactive, Inc. Voodoo 2 (rev 02)
	Flags: fast devsel
	Memory at fffffffff9000000 (32-bit, prefetchable) [size=16M]
	Kernel driver in use: sstfb

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From: Bjorn Helgaas <bhelgaas@google.com>
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Subject: Re: [PATCH] parisc/PCI: lba: fix: convert to pci_create_root_bus()
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On Fri, May 31, 2013 at 2:46 PM, Helge Deller <deller@gmx.de> wrote:
> On 05/30/2013 11:40 PM, Helge Deller wrote:
>> On 05/30/2013 11:12 PM, Bjorn Helgaas wrote:
>>> On Thu, May 30, 2013 at 09:47:11PM +0200, Helge Deller wrote:
>>>> Maybe you could help me with another problem which I have with my C3000 as well?
>>>>
>>>> That's the current log:
>>>> Found devices:
>>>> 1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
>>>> 2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
>>>> 3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
>>>> 4. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
>>>> 5. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
>>>> 6. Allegro W2 at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
>>>> 7. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
>>>> CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
>>>> Whole cache flush 492314 cycles, flushing 7983104 bytes 1594427 cycles
>>>> Setting cache flush threshold to 180000 (1 CPUs online)
>>>> SBA found Astro 2.1 at 0xfffffffffed00000
>>>
>>>> Elroy version TR4.0 (0x5) found at 0xfffffffffed30000
>>>> LBA 10:0: PCI host bridge to bus 0000:00
>>>> pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
>>>> pci_bus 0000:00: root bus resource [mem 0xfffffffff2000000-0xfffffffff23fffff] (bus address [0xf2000000-0xf23fffff])
>>>> pci_bus 0000:00: root bus resource [bus 00]
>>>> pci 0000:00:0c.0: [1011:0019] type 00 class 0x020000
>>>> pci 0000:00:0c.0: reg 10: [io  0x1000-0x107f]
>>>> pci 0000:00:0c.0: reg 14: [mem 0xfffffffff2008000-0xfffffffff20083ff]
>>>> pci 0000:00:0c.0: reg 30: [mem 0xfffffffff2040000-0xfffffffff207ffff pref]
>>>> pci 0000:00:0d.0: [11d4:1889] type 00 class 0x040100
>>>> pci 0000:00:0d.0: reg 10: [mem 0xfffffffff200c000-0xfffffffff200c1ff pref]
>>>> pci 0000:00:0d.0: reg 14: [mem 0xfffffffff200b000-0xfffffffff200b00f pref]
>>>> pci 0000:00:0d.0: reg 18: [mem 0xfffffffff200a000-0xfffffffff200a00f pref]
>>>> pci 0000:00:0d.0: reg 1c: [mem 0xfffffffff2009000-0xfffffffff200900f pref]
>>>> pci 0000:00:0d.0: supports D2
>>>> pci 0000:00:0e.0: [100b:0002] type 00 class 0x01018a
>>>> PCI: Enabled native mode for NS87415 (pif=0x8f)
>>>> pci 0000:00:0e.0: reg 10: [io  0x0f00-0x0f07]
>>>> pci 0000:00:0e.0: reg 14: [io  0x0e00-0x0e03]
>>>> pci 0000:00:0e.0: reg 18: [io  0x0d00-0x0d07]
>>>> pci 0000:00:0e.0: reg 1c: [io  0x0b00-0x0b03]
>>>> pci 0000:00:0e.0: reg 20: [io  0x0a00-0x0a0f]
>>>> pci 0000:00:0e.1: [100b:000e] type 00 class 0x068000
>>>> pci 0000:00:0e.2: [100b:0012] type 00 class 0x0c0310
>>>> pci 0000:00:0e.2: reg 10: [mem 0xfffffffff2007000-0xfffffffff2007fff]
>>>> pci 0000:00:0e.2: reg 14: [mem 0xfffffffff2006000-0xfffffffff2006fff]
>>>> pci 0000:00:0f.0: [1000:000b] type 00 class 0x010000
>>>> pci 0000:00:0f.0: reg 10: [io  0x0900-0x09ff]
>>>> pci 0000:00:0f.0: reg 14: [mem 0xfffffffff2005000-0xfffffffff20053ff 64bit]
>>>> pci 0000:00:0f.0: reg 1c: [mem 0xfffffffff2002000-0xfffffffff2003fff 64bit]
>>>> pci 0000:00:0f.0: supports D1 D2
>>>> pci 0000:00:0f.1: [1000:000b] type 00 class 0x010000
>>>> pci 0000:00:0f.1: reg 10: [io  0x0800-0x08ff]
>>>> pci 0000:00:0f.1: reg 14: [mem 0xfffffffff2004000-0xfffffffff20043ff 64bit]
>>>> pci 0000:00:0f.1: reg 1c: [mem 0xfffffffff2000000-0xfffffffff2001fff 64bit]
>>>> pci 0000:00:0f.1: supports D1 D2
>>>
>>>> Elroy version TR4.0 (0x5) found at 0xfffffffffed32000
>>>> LBA 10:1: PCI host bridge to bus 0000:01
>>>> pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
>>>> pci_bus 0000:01: root bus resource [mem 0xfffffffff6000000-0xfffffffff6ffffff] (bus address [0xf6000000-0xf6ffffff])
>>>
>>> 16MB window (probably "directed range").
>>>
>>>> pci_bus 0000:01: root bus resource [mem 0xfffffffff2400000-0xfffffffff27fffff] (bus address [0xf2400000-0xf27fffff])
>>>
>>> 4MB window (probably "distributed range").
>>>
>>>> pci_bus 0000:01: root bus resource [bus 01-02]
>>>> pci 0000:01:04.0: [103c:1005] type 00 class 0x038000
>>>> pci 0000:01:04.0: reg 10: [mem 0xf6000000-0xf7ffffff]
>>>
>>> This BAR requires 32MB, so it doesn't fit inside the window.
>>>
>>> Has this device ever worked on Linux, or do you know if it works on HP-UX?
>>
>> Yes, that's a simple HP graphics framebuffer card for HP-UX:
>> 01:04.0 Display controller: Hewlett-Packard Company A4977A Visualize EG (rev 03)
>>         Flags: 66MHz, medium devsel
>>         Memory at f6000000 (32-bit, non-prefetchable) [size=32M]
>>         Expansion ROM at f2400000 [disabled] [size=64K]
>>
>>> If so, our idea of the LBA 10:1 bridge windows is probably wrong.  There
>>> is no generic mechanism for LBA window workarounds (i.e., nothing like
>>> the PCI quirk mechanism), but you might be able to detect and work
>>> around this issue in lba_pat_resources() or lba_legacy_resources().
>>> Of course, you have to know where to get the correct window info.  It
>>> looks like lba_legacy_resources() reads that directly from hardware
>>> via sba_distributed_lmmio() and sba_directed_lmmio().  I'd be surprised
>>> if the hardware registers gave the wrong values, since they're probably
>>> used directly for routing.
>>>
>>>> pci 0000:01:04.0: reg 30: [mem 0xfffffffff2400000-0xfffffffff240ffff pref]
>>>> pci 0000:01:05.0: [121a:0002] type 00 class 0x040000
>>>> pci 0000:01:05.0: reg 10: [mem 0xf8000000-0xf8ffffff pref]
>>>
>>> Also wrong because it doesn't fit in any window we know about.
>>
>> 01:05.0 Multimedia video controller: 3Dfx Interactive, Inc. Voodoo 2 (rev 02)
>>         Flags: fast devsel
>>         Memory at f8000000 (32-bit, prefetchable) [size=16M]
>>
>> -> from PC. IIRC, it worked once for me under Linux in this machine (when the C3000 workaround worked).
>>
>>>> pci 0000:01:06.0: [3388:0021] type 01 class 0x060400
>>>> pci 0000:01:06.0: supports D1 D2
>>>> pci 0000:01:06.0: PME# supported from D1 D2 D3hot D3cold
>>
>> 01:06.0 PCI bridge: Hint Corp HB6 Universal PCI-PCI bridge (non-transparent mode) (rev 12) (prog-if 00 [Normal decode])
>>         Flags: bus master, fast Back2Back, medium devsel, latency 255
>>         Bus: primary=01, secondary=02, subordinate=02, sec-latency=255
>>         I/O behind bridge: 00000000-00000fff
>>         Memory behind bridge: f9000000-fbffffff
>>         Prefetchable memory behind bridge: ffffffff00000000-ffffffff000fffff
>>         Capabilities: [80] Power Management version 2
>>         Capabilities: [90] CompactPCI hot-swap <?>
>>         Capabilities: [a0] Vital Product Data
>>
>> -> I don't know any longer what that is.
>> Will plug it out.
>>
>>>> pci 0000:01:04.0: no compatible bridge window for [mem 0xf6000000-0xf7ffffff]
>>>>
>>>> ^^ HERE ^^^
>>>> That's actually the problem.
>>>> pci 0000:01:04.0, pci 0000:01:05.0 and maybe pci 0000:01:06.0 should be:
>>>> pci 0000:00:04.0, pci 0000:00:05.0 and maybe pci 0000:00:06.0.
>>>>
>>>> This problem is documented in lba_pci.c as a bug on the C3000 machines, that
>>>> everything listed under PCI02 actually lives under PCI00.
>>>> Just search for the lengthy comment in lba_pci.c (search for keyword C3000).
>>>>
>>>> Can you maybe give me some hints how I can build a proper workaround for that problem?
>>>> Is there any similar workaround in the pci codebase which I haven't found yet?
>>>> The reference code in lba_pci.c doesn't compile any longer, but maybe
>>>> it's possible to reactivate it somehow?
>>>>
>>>>
>>>> iosapic: no IRTE for 0000:01:04.0 (IRQ not connected?)
>>>> pci 0000:01:05.0: no compatible bridge window for [mem 0xf8000000-0xf8ffffff pref]
>>>> iosapic: no IRTE for 0000:01:05.0 (IRQ not connected?)
>>>> pci_bus 0000:02: busn_res: can not insert [bus 02-ff] under [bus 01-02] (conflicts with (null) [bus 01-02])
>>>
>>> The PCI core does know that LBA 10:0 leads only to [bus 01-02], but maybe
>>> we try to set the end of the range higher during enumeration, in case we
>>> find bridges?  We *shouldn't* go past bus 02 though, because then we might
>>> falsely believe a device on bus 03 was under this LBA.  I'm not sure what's
>>> going on here.
>>>
>>>> pci 0000:02:00.0: [102b:0525] type 00 class 0x030000
>>>> pci 0000:02:00.0: reg 10: [mem 0xfa000000-0xfbffffff pref]
>>>> pci 0000:02:00.0: reg 14: [mem 0xf9800000-0xf9803fff]
>>>> pci 0000:02:00.0: reg 18: [mem 0xf9000000-0xf97fffff]
>>>> pci 0000:02:00.0: reg 30: [mem 0xf9820000-0xf983ffff pref]
>>>
>>> These are all wrong, too.
>>>
>>>> pci 0000:01:06.0: PCI bridge to [bus 02-ff]
>>>>
>>>> ^^^^ HERE ^^^^
>>>> Should this be something like (in **): ?
>>>>    pci 0000:01:06.0: PCI bridge to *BUS 02-ff* [bus 02-ff
>>>> But probably it's related to the C3000 bug mentioned above.
>>>>
>>>>
>>>> pci 0000:01:06.0:   bridge window [io  0x0000-0x0fff]
>>>
>>> Something's wrong here, too.  The host bridge I/O window is
>>> [io  0x12000-0x13fff] (bus address [0x2000-0x3fff]), and this
>>> P2P bridge window is not inside it.
>>>
>>>> pci 0000:01:06.0:   bridge window [mem 0xf9000000-0xfbffffff]
>>>
>>> This looks wrong, too.
>>>
>>>> pci 0000:01:06.0:   bridge window [mem 0xffffffff00000000-0xffffffff000fffff 64bit pref]
>>>> pci 0000:01:06.0: address space collision: [io  0x0000-0x0fff] conflicts with PCI01 Ports [io  0x12000-0x13fff]
>>>> pci 0000:01:06.0: no compatible bridge window for [mem 0xf9000000-0xfbffffff]
>>>> pci 0000:01:06.0: no compatible bridge window for [mem 0xffffffff00000000-0xffffffff000fffff 64bit pref]
>>>> pci 0000:01:06.0: no compatible bridge window for [??? 0x00000000 flags 0x0]
>>>
>>> I don't know what's going on here -- looks like that resource is all zeroes?
>>>
>>>> pci_bus 0000:02: busn_res: [bus 02-ff] end is updated to 02
>>>> pci 0000:01:06.0: device not available (can't reserve [io  0x0000-0x0fff])
>>>> pci 0000:01:06.0: Error enabling bridge (-22), continuing
>>
>>>> Elroy version TR4.0 (0x5) found at 0xfffffffffed38000
>>>> LBA 10:4: PCI host bridge to bus 0000:03
>>>> pci_bus 0000:03: root bus resource [io  0x28000-0x29fff] (bus address [0x8000-0x9fff])
>>>> pci_bus 0000:03: root bus resource [mem 0xfffffffff3000000-0xfffffffff33fffff] (bus address [0xf3000000-0xf33fffff])
>>>> pci_bus 0000:03: root bus resource [bus 03]
>>>> pci 0000:03:01.0: [12ae:0001] type 00 class 0x020000
>>>> pci 0000:03:01.0: reg 10: [mem 0xfffffffff3000000-0xfffffffff3003fff]
>>>> pci 0000:03:03.0: [1011:0019] type 00 class 0x020000
>>>> pci 0000:03:03.0: reg 10: [io  0x28000-0x2807f]
>>>> pci 0000:03:03.0: reg 14: [mem 0xfffffffff3004000-0xfffffffff300407f]
>>>> pci 0000:03:03.0: reg 30: [mem 0xfffffffff3040000-0xfffffffff307ffff pref]
>>>> Elroy version TR4.0 (0x5) found at 0xfffffffffed3c000
>>>> .....
>>>
>>> Wow, this is a real train wreck.  Has this configuration ever worked under
>>> Linux?  Does it work under HP-UX?
>>
>> I think all devices beside 01:06.0 worked under Linux in the past.
>> I'll take out the 01:06.0 and try again.
>>
>>>  Maybe it has devices that aren't
>>> officially supported and the firmware did the wrong thing?  (Though it'd
>>> still be nice if Linux did something more sensible than this.)
>
> Ok, I removed all unnecessary cards, incl. 100MBit NIC, 1000MBit NIC, Matrox G200 and a Visualize FX.
>
> Now it works nicely and as expected.
> Even the Visualize EG graphics card and the Voodo2 work (which were my main problem) :-)

Good, glad that works.  We *ought* to be able to do better, e.g., by
just ignoring cards that we can't use.

If you have a chance, you might collect the complete dmesg log from
both the working configuration and the broken one, and attach them to
a new kernel.org PCI bugzilla.  Maybe we can ponder them and figure
something out.

I suspect the problem is related to the fact that we don't really
enforce the host bridge apertures reported by the platform.  But we
might be able to tighten that up, or do something specific to parisc
that would help this situation.

Bjorn

> Found devices:
> 1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
> 2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
> 3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
> 4. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
> 5. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
> 6. Allegro W2 at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
> 7. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
> CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
> SBA found Astro 2.1 at 0xfffffffffed00000
> Elroy version TR4.0 (0x5) found at 0xfffffffffed30000
> LBA 10:0: PCI host bridge to bus 0000:00
> pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
> pci_bus 0000:00: root bus resource [mem 0xfffffffff4000000-0xfffffffff47fffff] (bus address [0xf4000000-0xf47fffff])
> pci_bus 0000:00: root bus resource [bus 00]
> pci 0000:00:0c.0: [1011:0019] type 00 class 0x020000
> pci 0000:00:0c.0: reg 10: [io  0x1000-0x107f]
> pci 0000:00:0c.0: reg 14: [mem 0xfffffffff4008000-0xfffffffff40083ff]
> pci 0000:00:0c.0: reg 30: [mem 0xfffffffff4040000-0xfffffffff407ffff pref]
> pci 0000:00:0d.0: [11d4:1889] type 00 class 0x040100
> pci 0000:00:0d.0: reg 10: [mem 0xfffffffff400c000-0xfffffffff400c1ff pref]
> pci 0000:00:0d.0: reg 14: [mem 0xfffffffff400b000-0xfffffffff400b00f pref]
> pci 0000:00:0d.0: reg 18: [mem 0xfffffffff400a000-0xfffffffff400a00f pref]
> pci 0000:00:0d.0: reg 1c: [mem 0xfffffffff4009000-0xfffffffff400900f pref]
> pci 0000:00:0d.0: supports D2
> pci 0000:00:0e.0: [100b:0002] type 00 class 0x01018a
> PCI: Enabled native mode for NS87415 (pif=0x8f)
> pci 0000:00:0e.0: reg 10: [io  0x0f00-0x0f07]
> pci 0000:00:0e.0: reg 14: [io  0x0e00-0x0e03]
> pci 0000:00:0e.0: reg 18: [io  0x0d00-0x0d07]
> pci 0000:00:0e.0: reg 1c: [io  0x0b00-0x0b03]
> pci 0000:00:0e.0: reg 20: [io  0x0a00-0x0a0f]
> pci 0000:00:0e.1: [100b:000e] type 00 class 0x068000
> pci 0000:00:0e.2: [100b:0012] type 00 class 0x0c0310
> pci 0000:00:0e.2: reg 10: [mem 0xfffffffff4007000-0xfffffffff4007fff]
> pci 0000:00:0e.2: reg 14: [mem 0xfffffffff4006000-0xfffffffff4006fff]
> pci 0000:00:0f.0: [1000:000b] type 00 class 0x010000
> pci 0000:00:0f.0: reg 10: [io  0x0900-0x09ff]
> pci 0000:00:0f.0: reg 14: [mem 0xfffffffff4005000-0xfffffffff40053ff 64bit]
> pci 0000:00:0f.0: reg 1c: [mem 0xfffffffff4002000-0xfffffffff4003fff 64bit]
> pci 0000:00:0f.0: supports D1 D2
> pci 0000:00:0f.1: [1000:000b] type 00 class 0x010000
> pci 0000:00:0f.1: reg 10: [io  0x0800-0x08ff]
> pci 0000:00:0f.1: reg 14: [mem 0xfffffffff4004000-0xfffffffff40043ff 64bit]
> pci 0000:00:0f.1: reg 1c: [mem 0xfffffffff4000000-0xfffffffff4001fff 64bit]
> pci 0000:00:0f.1: supports D1 D2
> Elroy version TR4.0 (0x5) found at 0xfffffffffed32000
> LBA 10:1: PCI host bridge to bus 0000:01
> pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
> pci_bus 0000:01: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff])
> pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff])
> pci_bus 0000:01: root bus resource [bus 01]
> pci 0000:01:04.0: [103c:1005] type 00 class 0x038000
> pci 0000:01:04.0: reg 10: [mem 0xfffffffffa000000-0xfffffffffbffffff]
> pci 0000:01:04.0: reg 30: [mem 0xfffffffff4800000-0xfffffffff480ffff pref]
> iosapic: hpa not registered for 0000:01:04.0
> Elroy version TR4.0 (0x5) found at 0xfffffffffed38000
> LBA 10:4: PCI host bridge to bus 0000:02
> pci_bus 0000:02: root bus resource [io  0x28000-0x29fff] (bus address [0x8000-0x9fff])
> pci_bus 0000:02: root bus resource [mem 0xfffffffff9000000-0xfffffffff9ffffff] (bus address [0xf9000000-0xf9ffffff])
> pci_bus 0000:02: root bus resource [mem 0xfffffffff6000000-0xfffffffff67fffff] (bus address [0xf6000000-0xf67fffff])
> pci_bus 0000:02: root bus resource [bus 02]
> pci 0000:02:03.0: [121a:0002] type 00 class 0x040000
> pci 0000:02:03.0: reg 10: [mem 0xfffffffff9000000-0xfffffffff9ffffff pref]
> iosapic: hpa not registered for 0000:02:03.0
> Elroy version TR4.0 (0x5) found at 0xfffffffffed3c000
> LBA 10:6: PCI host bridge to bus 0000:03
> pci_bus 0000:03: root bus resource [io  0x3c000-0x3dfff] (bus address [0xc000-0xdfff])
> pci_bus 0000:03: root bus resource [mem 0xfffffffff7000000-0xfffffffff77fffff] (bus address [0xf7000000-0xf77fffff])
> pci_bus 0000:03: root bus resource [bus 03]
> .....
> .....
> STI GSC/PCI core graphics driver Version 0.9a
> sti 0000:01:04.0: enabling SERR and PARITY (0002 -> 0142)
> STI PCI graphic ROM found at fffffffff4800000 (64 kB), fb at fffffffffa000000 (32 MB)
>     id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
>     graphics card name: PCI_GRAFFITIX1024
> sticon: Initializing STI text console.
> Console: switching to colour STI console 128x48
> Console: switching to colour frame buffer device 128x48
> fb0: stifb 1024x768-8 frame buffer device, PCI_GRAFFITIX1024, id: 2d08c0a7, mmio: 0xfffffffffa100000
> sstfb 0000:02:03.0: enabling SERR and PARITY (0002 -> 0142)
> Voodoo2 (revision 2) with ICS ICS5342 dac
> framebuffer at 0xfffffffff9400000, mapped to 0x0000000000700000, size 2MB
> fb1: Voodoo2 frame buffer device at 0x0000000000700000
> .....
>
> lspci -v:
> ---------
> 00:0c.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
>         Subsystem: Hewlett-Packard Company Device 104f
>         Flags: bus master, medium devsel, latency 255, IRQ 65
>         I/O ports at 1000 [size=128]
>         Memory at fffffffff4008000 (32-bit, non-prefetchable) [size=1K]
>         Expansion ROM at fffffffff4040000 [disabled] [size=256K]
>         Kernel driver in use: tulip
>
> 00:0d.0 Multimedia audio controller: Analog Devices AD1889 sound chip
>         Subsystem: Analog Devices AD1889 sound chip
>         Flags: bus master, medium devsel, latency 255, IRQ 66
>         Memory at fffffffff400c000 (32-bit, prefetchable) [size=512]
>         Memory at fffffffff400b000 (32-bit, prefetchable) [size=16]
>         Memory at fffffffff400a000 (32-bit, prefetchable) [size=16]
>         Memory at fffffffff4009000 (32-bit, prefetchable) [size=16]
>         Capabilities: [dc] Power Management version 1
>
> 00:0e.0 IDE interface: National Semiconductor Corporation 87415/87560 IDE (rev 03) (prog-if 8f [Master SecP SecO PriP PriO])
>         Flags: bus master, medium devsel, latency 255, IRQ 7
>         I/O ports at 0f00 [size=8]
>         I/O ports at 0e00 [size=4]
>         I/O ports at 0d00 [size=8]
>         I/O ports at 0b00 [size=4]
>         I/O ports at 0a00 [size=16]
>         Kernel driver in use: NS87415_IDE
>
> 00:0e.1 Bridge: National Semiconductor Corporation 87560 Legacy I/O (rev 01)
>         Flags: bus master, medium devsel, latency 255, IRQ 67
>         Kernel driver in use: SuperIO
>
> 00:0e.2 USB controller: National Semiconductor Corporation USB Controller (rev 02) (prog-if 10 [OHCI])
>         Flags: bus master, medium devsel, latency 240, IRQ 1
>         Memory at fffffffff4007000 (32-bit, non-prefetchable) [size=4K]
>         Memory at fffffffff4006000 (32-bit, non-prefetchable) [size=4K]
>         Kernel driver in use: ohci_hcd
>
> 00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53C896/897 (rev 07)
>         Subsystem: LSI Logic / Symbios Logic LSI53C896/7 PCI to Dual Channel Ultra2 SCSI Multifunction Controller
>         Flags: bus master, medium devsel, latency 255, IRQ 68
>         I/O ports at 0900 [size=256]
>         Memory at fffffffff4005000 (64-bit, non-prefetchable) [size=1K]
>         Memory at fffffffff4002000 (64-bit, non-prefetchable) [size=8K]
>         Capabilities: [40] Power Management version 2
>         Kernel driver in use: sym53c8xx
>
> 00:0f.1 SCSI storage controller: LSI Logic / Symbios Logic 53C896/897 (rev 07)
>         Subsystem: LSI Logic / Symbios Logic LSI53C896/7 PCI to Dual Channel Ultra2 SCSI Multifunction Controller
>         Flags: bus master, medium devsel, latency 255, IRQ 68
>         I/O ports at 0800 [size=256]
>         Memory at fffffffff4004000 (64-bit, non-prefetchable) [size=1K]
>         Memory at fffffffff4000000 (64-bit, non-prefetchable) [size=8K]
>         Capabilities: [40] Power Management version 2
>         Kernel driver in use: sym53c8xx
>
> 01:04.0 Display controller: Hewlett-Packard Company A4977A Visualize EG (rev 03)
>         Flags: 66MHz, medium devsel
>         Memory at fffffffffa000000 (32-bit, non-prefetchable) [size=32M]
>         Expansion ROM at fffffffff4800000 [disabled] [size=64K]
>         Kernel driver in use: sti
>
> 02:03.0 Multimedia video controller: 3Dfx Interactive, Inc. Voodoo 2 (rev 02)
>         Flags: fast devsel
>         Memory at fffffffff9000000 (32-bit, prefetchable) [size=16M]
>         Kernel driver in use: sstfb
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc/PCI: lba: fix: convert to pci_create_root_bus()
 for correct root bus resources (v2)
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changes in v2:
- updated the patch to change all .start -> .flags
- dropped setting IORESOURCE_BUS, will use Bjorns patch instead.


commit dc7dce280a
Author: Bjorn Helgaas <bhelgaas@google.com>
Date:   Fri Oct 28 16:27:27 2011 -0600
   parisc/PCI: lba: convert to pci_create_root_bus() for correct root bus
                    resources

  Supply root bus resources to pci_create_root_bus() so they're correct
  immediately.  This fixes the problem of "early" and "header" quirks seeing
  incorrect root bus resources.

added tests for elmmio_space.start while it should use
elmmio_space.flags.  This for example led to incorrect resource
assignments and a non-working stifb framebuffer on most parisc machines.

LBA 10:1: PCI host bridge to bus 0000:01
pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
pci_bus 0000:01: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff])
pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff])
pci_bus 0000:01: root bus resource [??? 0x00000001 flags 0x0]

Signed-off-by: Helge Deller <deller@gmx.de>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 2ef7103..90c5805 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -668,7 +668,7 @@ lba_fixup_bus(struct pci_bus *bus)
 			BUG();
 		}
 
-		if (ldev->hba.elmmio_space.start) {
+		if (ldev->hba.elmmio_space.flags) {
 			err = request_resource(&iomem_resource,
 					&(ldev->hba.elmmio_space));
 			if (err < 0) {
@@ -993,7 +993,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 
 		case PAT_LMMIO:
 			/* used to fix up pre-initialized MEM BARs */
-			if (!lba_dev->hba.lmmio_space.start) {
+			if (!lba_dev->hba.lmmio_space.flags) {
 				sprintf(lba_dev->hba.lmmio_name,
 						"PCI%02x LMMIO",
 						(int)lba_dev->hba.bus_num.start);
@@ -1001,7 +1001,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 					io->start;
 				r = &lba_dev->hba.lmmio_space;
 				r->name = lba_dev->hba.lmmio_name;
-			} else if (!lba_dev->hba.elmmio_space.start) {
+			} else if (!lba_dev->hba.elmmio_space.flags) {
 				sprintf(lba_dev->hba.elmmio_name,
 						"PCI%02x ELMMIO",
 						(int)lba_dev->hba.bus_num.start);
@@ -1494,7 +1494,7 @@ lba_driver_probe(struct parisc_device *dev)
 
 	pci_add_resource_offset(&resources, &lba_dev->hba.io_space,
 				HBA_PORT_BASE(lba_dev->hba.hba_num));
-	if (lba_dev->hba.elmmio_space.start)
+	if (lba_dev->hba.elmmio_space.flags)
 		pci_add_resource_offset(&resources, &lba_dev->hba.elmmio_space,
 					lba_dev->hba.lmmio_space_offset);
 	if (lba_dev->hba.lmmio_space.flags)
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From - Thu Nov 08 21:09:23 2018
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Subject: [GIT PULL] parisc updates for v3.10-rc4
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Hi Linus,

please pull the latest changes for the parisc architecture.

They are available in the for-3.10 branch in the git repository at:
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git for-3.10

Thanks!
Helge

----------------------------------------------------------------

This patcheset includes fixes for:
- the PCI/LBA which brings back the stifb graphics framebuffer console
- possible memory overflows in parisc kernel init code
- parport support on older GSC machines
- avoids that users by mistake enable PARPORT_PC_SUPERIO on parisc
- MAINTAINERS file list updates for parisc.

----------------------------------------------------------------
Bjorn Helgaas (1):
      parisc/PCI: Set type for LBA bus_num resource

Chen Gang (2):
      parisc: memory overflow, 'name' length is too short for using
      parisc: kernel: using strlcpy() instead of strcpy()

Helge Deller (5):
      parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50
      MAINTAINERS: update parisc architecture file list
      parisc/PCI: lba: fix: convert to pci_create_root_bus() for correct root bus resources (v2)
      parport_pc: disable PARPORT_PC_SUPERIO on parisc architecture
      parisc: parport0: fix this legacy no-device port driver!

Paul Bolle (1):
      parisc: rename "CONFIG_PA7100" to "CONFIG_PA7000"

 MAINTAINERS                      | 8 ++++++++
 arch/parisc/Makefile             | 2 +-
 arch/parisc/include/asm/mmzone.h | 5 +----
 arch/parisc/kernel/drivers.c     | 2 +-
 arch/parisc/kernel/setup.c       | 3 ++-
 drivers/parisc/lba_pci.c         | 9 +++++----
 drivers/parport/Kconfig          | 2 +-
 drivers/parport/parport_gsc.c    | 6 +++---
 drivers/parport/parport_gsc.h    | 2 +-
 9 files changed, 23 insertions(+), 16 deletions(-)
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Hi Geoff,

On 06/01/2013 02:21 AM, Geoff wrote:
> I am still working on sorting out a fresh lenny -> sid upgrade. I have managed apt-get update, upgrade and dist-upgrade after lots of stuffing around (notes kept). It appears that "dependency based boot sequencing" gets in the way.
> 
> I'd like to try a kernel build next. Could anyone please point me towards a "cookbook" set of instructions and a suitably patched repository?

For the most stable kernel check out my stable-3.10 branch of 
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git

e.g.: 
clone a linux tree (3.10-rcX) from Linus, then:
git pull  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git  stable-3.10

You need a "palo.conf" file, e.g. I use this one for tftbooting...
http://www.parisc-linux.org/~deller/palo.conf
-> copy it to your kernel directory (where you build).

Then take (if you like) one of my .config files (either the 32 or 64bit one).
http://www.parisc-linux.org/~deller/config-3.10-64bit
http://www.parisc-linux.org/~deller/config-3.10-32bit
copy this config file to your parisc kernel tree (build tree),
rename the file to ".config".
run "make ARCH=parisc oldconfig"

run "make ARCH=parisc -j8 palo"

for tftpbooting, copy the "lifimage" file to the tftp-bootdirectory.
for direct booting of local disc, copy the "vmlinux" to /boot (on the parisc machine).

Boot up your PA machine, and run
boot lan -> for tftpbooting, or
boot pri -> for local booting (if you have the new vmlinux in /boot.

http://wiki.parisc-linux.org/Debian_Ports_Installation has some instructions (for kernel 3.9) as well.

Helge
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Newsgroups: gmane.linux.kernel.pci,gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc/PCI: lba: fix: convert to pci_create_root_bus()
 for correct root bus resources
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To: Bjorn Helgaas <bhelgaas@google.com>
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On 05/31/2013 11:25 PM, Bjorn Helgaas wrote:
>>>> Maybe it has devices that aren't
>>>> officially supported and the firmware did the wrong thing?  (Though it'd
>>>> still be nice if Linux did something more sensible than this.)
>>
>> Ok, I removed all unnecessary cards, incl. 100MBit NIC, 1000MBit NIC, Matrox G200 and a Visualize FX.
>>
>> Now it works nicely and as expected.
>> Even the Visualize EG graphics card and the Voodo2 work (which were my main problem) :-)
> 
> Good, glad that works.  We *ought* to be able to do better, e.g., by
> just ignoring cards that we can't use.
> 
> If you have a chance, you might collect the complete dmesg log from
> both the working configuration and the broken one, and attach them to
> a new kernel.org PCI bugzilla. 

I opened bugzilla #59191
https://bugzilla.kernel.org/show_bug.cgi?id=59191
(Someone needs to reassign this bug to Driver/PCI component - I can't.)

Thanks!
Helge

From - Thu Nov 08 21:09:23 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix cache coherency for copy/clear_user_page operations
Date: Sun, 2 Jun 2013 12:09:35 -0400
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As noted by James E.J. Bottomley, we need to purge the kernel TLB  
entries used when copying/clearing
to user pages on PA 2.0 systems that require cache coherency.   
Otherwise, we generate inequivalent
aliases and incorrect cache operation.

The patch also disables preemption around both the TLB and cache  
flushes as it seemed the effect of the
purge might be lost.

So far with approximately two days testing, I have seen no random  
segmentation faults on 4-way rp3440.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---



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diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index f0e2784..772dc27 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -114,8 +114,8 @@ static inline void
 flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr)
 {
 	if (PageAnon(page)) {
-		flush_tlb_page(vma, vmaddr);
 		preempt_disable();
+		flush_tlb_page(vma, vmaddr);
 		flush_dcache_page_asm(page_to_phys(page), vmaddr);
 		preempt_enable();
 	}
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 65fb4cb..a16ede352 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -383,7 +383,7 @@ void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
 {
 	clear_page_asm(vto);
 	if (!parisc_requires_coherency())
-		flush_kernel_dcache_page_asm(vto);
+		flush_kernel_dcache_page_addr(vto);
 }
 EXPORT_SYMBOL(clear_user_page);
 
@@ -397,10 +397,10 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 	   the kernel mapping. */
 	preempt_disable();
 	flush_dcache_page_asm(__pa(vfrom), vaddr);
-	preempt_enable();
 	copy_page_asm(vto, vfrom);
 	if (!parisc_requires_coherency())
-		flush_kernel_dcache_page_asm(vto);
+		flush_kernel_dcache_page_addr(vto);
+	preempt_enable();
 }
 EXPORT_SYMBOL(copy_user_page);
 
@@ -619,11 +619,11 @@ void clear_user_highpage(struct page *page, unsigned long vaddr)
 	   and the write-capable translation removed from the page
 	   table and purged from the TLB."  */
 
+	preempt_disable();
 	purge_kernel_dcache_page_asm((unsigned long)vto);
 	purge_tlb_start(flags);
 	pdtlb_kernel(vto);
 	purge_tlb_end(flags);
-	preempt_disable();
 	clear_user_page_asm(vto, vaddr);
 	preempt_enable();
 
@@ -644,12 +644,12 @@ void copy_user_highpage(struct page *to, struct page *from,
 	vfrom = kmap_atomic(from);
 	vto = kmap_atomic(to);
 
+	preempt_disable();
 	purge_kernel_dcache_page_asm((unsigned long)vto);
 	purge_tlb_start(flags);
 	pdtlb_kernel(vto);
 	pdtlb_kernel(vfrom);
 	purge_tlb_end(flags);
-	preempt_disable();
 	copy_user_page_asm(vto, vfrom, vaddr);
 	flush_dcache_page_asm(__pa(vto), vaddr);
 	preempt_enable();

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Subject: [PATCH] parisc: Use unshadowed index register for flush instructions in flush_dcache_page_asm and flush_icache_page_asm
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The comment at the start of pacache.S states that the base and index  
registers used for
fdc,fic, and pdc instructions should not use shadowed registers.   
Although this is probably
unnecessary for tmpalias flushes, there is also no reason not to  
comply.  The same
index register (%r23) is used as in other routines.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---



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diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 36d7f40..5f98abc 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -860,7 +860,7 @@ ENTRY(flush_dcache_page_asm)
 #endif
 
 	ldil		L%dcache_stride, %r1
-	ldw		R%dcache_stride(%r1), %r1
+	ldw		R%dcache_stride(%r1), r23
 
 #ifdef CONFIG_64BIT
 	depdi,z		1, 63-PAGE_SHIFT,1, %r25
@@ -868,26 +868,26 @@ ENTRY(flush_dcache_page_asm)
 	depwi,z		1, 31-PAGE_SHIFT,1, %r25
 #endif
 	add		%r28, %r25, %r25
-	sub		%r25, %r1, %r25
-
-
-1:      fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
-	fdc,m		%r1(%r28)
+	sub		%r25, r23, %r25
+
+
+1:      fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
+	fdc,m		r23(%r28)
 	cmpb,COND(<<)		%r28, %r25,1b
-	fdc,m		%r1(%r28)
+	fdc,m		r23(%r28)
 
 	sync
 
@@ -936,7 +936,7 @@ ENTRY(flush_icache_page_asm)
 #endif
 
 	ldil		L%icache_stride, %r1
-	ldw		R%icache_stride(%r1), %r1
+	ldw		R%icache_stride(%r1), %r23
 
 #ifdef CONFIG_64BIT
 	depdi,z		1, 63-PAGE_SHIFT,1, %r25
@@ -944,28 +944,28 @@ ENTRY(flush_icache_page_asm)
 	depwi,z		1, 31-PAGE_SHIFT,1, %r25
 #endif
 	add		%r28, %r25, %r25
-	sub		%r25, %r1, %r25
+	sub		%r25, %r23, %r25
 
 
 	/* fic only has the type 26 form on PA1.1, requiring an
 	 * explicit space specification, so use %sr4 */
-1:      fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
-	fic,m		%r1(%sr4,%r28)
+1:      fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
 	cmpb,COND(<<)	%r28, %r25,1b
-	fic,m		%r1(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
 
 	sync
 

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Use unshadowed index register for flush
 instructions in flush_dcache_page_asm and flush_icache_page_asm
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Cc: linux-parisc List <linux-parisc@vger.kernel.org>,
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On Sun, 2013-06-02 at 12:21 -0400, John David Anglin wrote:
> The comment at the start of pacache.S states that the base and index  
> registers used for
> fdc,fic, and pdc instructions should not use shadowed registers.   
> Although this is probably
> unnecessary for tmpalias flushes, there is also no reason not to  
> comply.  The same
> index register (%r23) is used as in other routines.

Please don't do this, it's a misinterpretation of the comment.

What the comment is trying to say is that we use unshadowed registers to
pass information to the tmpalias handler in our tlb insertion
interruption.  It's the do_alias macro in entry.S.  The only actual
unshadowed registers it uses are %r23 and %r26.  Apart from these having
to have specific values, the rest of the routine is free to use any
other registers (either shadowed or unshadowed) as it sees fit.

If the comment is unclear, perhaps it needs fixing?

James


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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] parisc: Use unshadowed index register for flush instructions in flush_dcache_page_asm and flush_icache_page_asm
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On 2-Jun-13, at 12:43 PM, James Bottomley wrote:

> On Sun, 2013-06-02 at 12:21 -0400, John David Anglin wrote:
>> The comment at the start of pacache.S states that the base and index
>> registers used for
>> fdc,fic, and pdc instructions should not use shadowed registers.
>> Although this is probably
>> unnecessary for tmpalias flushes, there is also no reason not to
>> comply.  The same
>> index register (%r23) is used as in other routines.
>
> Please don't do this, it's a misinterpretation of the comment.

I don't think so.  See the discussion around cases 16 and 17 in  
handle_interruption.

>
> What the comment is trying to say is that we use unshadowed  
> registers to
> pass information to the tmpalias handler in our tlb insertion
> interruption.  It's the do_alias macro in entry.S.  The only actual
> unshadowed registers it uses are %r23 and %r26.  Apart from these  
> having
> to have specific values, the rest of the routine is free to use any
> other registers (either shadowed or unshadowed) as it sees fit.
>
> If the comment is unclear, perhaps it needs fixing?


%r23 is only used by the do_alias macro for interruptions in the  
'from' region.
See this hunk:

#ifdef CONFIG_64BIT
         extrd,u,*=      \va,41,1,%r0
#else
         extrw,u,=       \va,9,1,%r0
#endif
         or,COND(tr)     %r23,%r0,\pte
         or              %r26,%r0,\pte

The extract instruction tests whether the interruption was in the 'to'  
tmpalias
region.  If it is in the 'to' region, the instruction following using  
%r23 is nullified.

So, %r23 can be used for the index register in these two functions  
which don't
use the 'from' tmpalias region.

Dave
--
John David Anglin	dave.anglin@bell.net



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Subject: Re: [PATCH] parisc: Use unshadowed index register for flush
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On Sun, 2013-06-02 at 13:16 -0400, John David Anglin wrote:
> On 2-Jun-13, at 12:43 PM, James Bottomley wrote:
> 
> > On Sun, 2013-06-02 at 12:21 -0400, John David Anglin wrote:
> >> The comment at the start of pacache.S states that the base and index
> >> registers used for
> >> fdc,fic, and pdc instructions should not use shadowed registers.
> >> Although this is probably
> >> unnecessary for tmpalias flushes, there is also no reason not to
> >> comply.  The same
> >> index register (%r23) is used as in other routines.
> >
> > Please don't do this, it's a misinterpretation of the comment.
> 
> I don't think so.  See the discussion around cases 16 and 17 in  
> handle_interruption.

Please be clearer: I don't understand what you think the problem is.  16
and 17 are the non access TLB traps which we can't get into in the
tmpalias code.

The way we handle tlb misses (for both NA, D and I types) within the
tmpalias region is in the do_alias macro of the interruption handler.
We never go through to the fault handler.

> >
> > What the comment is trying to say is that we use unshadowed  
> > registers to
> > pass information to the tmpalias handler in our tlb insertion
> > interruption.  It's the do_alias macro in entry.S.  The only actual
> > unshadowed registers it uses are %r23 and %r26.  Apart from these  
> > having
> > to have specific values, the rest of the routine is free to use any
> > other registers (either shadowed or unshadowed) as it sees fit.
> >
> > If the comment is unclear, perhaps it needs fixing?
> 
> 
> %r23 is only used by the do_alias macro for interruptions in the  
> 'from' region.
> See this hunk:
> 
> #ifdef CONFIG_64BIT
>          extrd,u,*=      \va,41,1,%r0
> #else
>          extrw,u,=       \va,9,1,%r0
> #endif
>          or,COND(tr)     %r23,%r0,\pte
>          or              %r26,%r0,\pte
> 
> The extract instruction tests whether the interruption was in the 'to'  
> tmpalias
> region.  If it is in the 'to' region, the instruction following using  
> %r23 is nullified.
> 
> So, %r23 can be used for the index register in these two functions  
> which don't
> use the 'from' tmpalias region.

It can, but it's dangerous and confusing to use it because we've
specifically called out that it has a special meaning in the vario0us
comments.  Using it for a different purpose from what we stated in the
comments within the code needlessly confuses the reader who comes after
us.

James


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From - Thu Nov 08 21:09:24 2018
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Subject: Re: [PATCH] parisc: Fix cache coherency for copy/clear_user_page
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On Sun, 2013-06-02 at 12:09 -0400, John David Anglin wrote:
> As noted by James E.J. Bottomley, we need to purge the kernel TLB  
> entries used when copying/clearing
> to user pages on PA 2.0 systems that require cache coherency.   
> Otherwise, we generate inequivalent
> aliases and incorrect cache operation.

What I meant was we have to remove the tmpalias tlb entry at the end of
the tmpalias operation.  This means in the asm of pacache.S.  Like the
patch below (untested because all my boxes are currently in a shipping
container on the docks at Seattle).  


> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
> index 65fb4cb..a16ede352 100644
> --- a/arch/parisc/kernel/cache.c
> +++ b/arch/parisc/kernel/cache.c
> @@ -383,7 +383,7 @@ void clear_user_page(void *vto, unsigned long
> vaddr, struct page *page)
>  {
>         clear_page_asm(vto);
>         if (!parisc_requires_coherency())
> -               flush_kernel_dcache_page_asm(vto);
> +               flush_kernel_dcache_page_addr(vto);
>  }
>  EXPORT_SYMBOL(clear_user_page);
>  
> @@ -397,10 +397,10 @@ void copy_user_page(void *vto, void *vfrom,
> unsigned long vaddr,
>            the kernel mapping. */
>         preempt_disable();
>         flush_dcache_page_asm(__pa(vfrom), vaddr);
> -       preempt_enable();
>         copy_page_asm(vto, vfrom);
>         if (!parisc_requires_coherency())
> -               flush_kernel_dcache_page_asm(vto);
> +               flush_kernel_dcache_page_addr(vto);
> +       preempt_enable();
>  }
>  EXPORT_SYMBOL(copy_user_page);
> 
These two changes should be ineffective.  The only time
clear_user_page() and copy_user_page() are used is if the architecture
doesn't supply clear_user_highpage() and copy_user_highpage() along with
the necessary defines for highmem.h, which we do.

If we go back to the non highpage defines, we've effectively double
purged, because the kunmap_atomic will do the kernel tlb purge for us as
well.

James


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Subject: Re: [PATCH] parisc: Use unshadowed index register for flush instructions in flush_dcache_page_asm and flush_icache_page_asm
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On 2-Jun-13, at 1:34 PM, James Bottomley wrote:

> On Sun, 2013-06-02 at 13:16 -0400, John David Anglin wrote:
>> On 2-Jun-13, at 12:43 PM, James Bottomley wrote:
>>
>>> On Sun, 2013-06-02 at 12:21 -0400, John David Anglin wrote:
>>>> The comment at the start of pacache.S states that the base and  
>>>> index
>>>> registers used for
>>>> fdc,fic, and pdc instructions should not use shadowed registers.
>>>> Although this is probably
>>>> unnecessary for tmpalias flushes, there is also no reason not to
>>>> comply.  The same
>>>> index register (%r23) is used as in other routines.
>>>
>>> Please don't do this, it's a misinterpretation of the comment.
>>
>> I don't think so.  See the discussion around cases 16 and 17 in
>> handle_interruption.
>
> Please be clearer: I don't understand what you think the problem  
> is.  16
> and 17 are the non access TLB traps which we can't get into in the
> tmpalias code.
>
> The way we handle tlb misses (for both NA, D and I types) within the
> tmpalias region is in the do_alias macro of the interruption handler.
> We never go through to the fault handler.
>
>>>
>>> What the comment is trying to say is that we use unshadowed
>>> registers to
>>> pass information to the tmpalias handler in our tlb insertion
>>> interruption.  It's the do_alias macro in entry.S.  The only actual
>>> unshadowed registers it uses are %r23 and %r26.  Apart from these
>>> having
>>> to have specific values, the rest of the routine is free to use any
>>> other registers (either shadowed or unshadowed) as it sees fit.
>>>
>>> If the comment is unclear, perhaps it needs fixing?
>>
>>
>> %r23 is only used by the do_alias macro for interruptions in the
>> 'from' region.
>> See this hunk:
>>
>> #ifdef CONFIG_64BIT
>>         extrd,u,*=      \va,41,1,%r0
>> #else
>>         extrw,u,=       \va,9,1,%r0
>> #endif
>>         or,COND(tr)     %r23,%r0,\pte
>>         or              %r26,%r0,\pte
>>
>> The extract instruction tests whether the interruption was in the  
>> 'to'
>> tmpalias
>> region.  If it is in the 'to' region, the instruction following using
>> %r23 is nullified.
>>
>> So, %r23 can be used for the index register in these two functions
>> which don't
>> use the 'from' tmpalias region.
>
> It can, but it's dangerous and confusing to use it because we've
> specifically called out that it has a special meaning in the vario0us
> comments.  Using it for a different purpose from what we stated in the
> comments within the code needlessly confuses the reader who comes  
> after
> us.


I don't think it's dangerous.  %r23 is a call clobbered register in  
these functions.
It can be anything on entry to these functions and it is not  
initialized.

We could use %r31 instead if you want to keep %r23 for tmpalias use.

The issue is the inconsistency between the initial comment which  
applies to the
fault handler and the tmpalias routines that have different rules for  
non access
faults.

Helge originally pointed out the issue.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH] parisc: Fix cache coherency for copy/clear_user_page
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On Sun, 2013-06-02 at 11:02 -0700, James Bottomley wrote:
> On Sun, 2013-06-02 at 12:09 -0400, John David Anglin wrote:
> > As noted by James E.J. Bottomley, we need to purge the kernel TLB  
> > entries used when copying/clearing
> > to user pages on PA 2.0 systems that require cache coherency.   
> > Otherwise, we generate inequivalent
> > aliases and incorrect cache operation.
> 
> What I meant was we have to remove the tmpalias tlb entry at the end of
> the tmpalias operation.  This means in the asm of pacache.S.  Like the
> patch below (untested because all my boxes are currently in a shipping
> container on the docks at Seattle).  

Let's try with the patch this time

James

---
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 36d7f40..9f0a377 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -686,6 +686,9 @@ ENTRY(copy_user_page_asm)
 	 */
 	addib,COND(>),n	-1, %r1, 1b		/* bundle 10 */
 	ldd		0(%r29), %r19		/* start next loads */
+	/* move back to the page for the purges below */
+	ldo		-256(%r29), %r29
+	ldo		-256(%r28), %r28
 
 #else
 	ldi		(PAGE_SIZE / 64), %r1
@@ -735,6 +738,19 @@ ENTRY(copy_user_page_asm)
 
 	addib,COND(>)		-1, %r1,1b
 	ldo		64(%r29), %r29
+	/* move back to the page for the purges below */
+	ldo		-128(%r28), %r28
+	ldo		-128(%r29), %r29
+#endif
+
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+	pdtlb,l		0(%r29)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r28)
+	pdtlb		0(%r29)
+	tlb_unlock	%r20,%r21,%r22
 #endif
 
 	bv		%r0(%r2)
@@ -799,6 +815,7 @@ ENTRY(clear_user_page_asm)
 	std		%r0, 120(%r28)
 	addib,COND(>)		-1, %r1, 1b
 	ldo		128(%r28), %r28
+	ldo		-256(%r28),%r28 /* move back to the same page */
 
 #else	/* ! CONFIG_64BIT */
 	ldi		(PAGE_SIZE / 64), %r1
@@ -821,8 +838,17 @@ ENTRY(clear_user_page_asm)
 	stw		%r0, 60(%r28)
 	addib,COND(>)		-1, %r1, 1b
 	ldo		64(%r28), %r28
+	ldo		-128(%r28),%r28 /* move back to the same page */
 #endif	/* CONFIG_64BIT */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
+
 	bv		%r0(%r2)
 	nop
 	.exit


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On 2-Jun-13, at 2:02 PM, James Bottomley wrote:

> On Sun, 2013-06-02 at 12:09 -0400, John David Anglin wrote:
>> As noted by James E.J. Bottomley, we need to purge the kernel TLB
>> entries used when copying/clearing
>> to user pages on PA 2.0 systems that require cache coherency.
>> Otherwise, we generate inequivalent
>> aliases and incorrect cache operation.
>
> What I meant was we have to remove the tmpalias tlb entry at the end  
> of
> the tmpalias operation.  This means in the asm of pacache.S.  Like the
> patch below (untested because all my boxes are currently in a shipping
> container on the docks at Seattle).

The entries are removed in flush_dcache_page_asm  and  
flush_icache_page_asm.
They are not currently removed in copy_user_page_asm and  
clear_user_page_asm.

The latter two routines are not currently used.   
CONFIG_PARISC_TMPALIAS needs
to be defined to switch to using the latter two routines.   
copy_user_page_asm has
never been enabled in the linux source and I haven't tested in the  
highpage code in
over a year.

>
>
>> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
>> index 65fb4cb..a16ede352 100644
>> --- a/arch/parisc/kernel/cache.c
>> +++ b/arch/parisc/kernel/cache.c
>> @@ -383,7 +383,7 @@ void clear_user_page(void *vto, unsigned long
>> vaddr, struct page *page)
>> {
>>        clear_page_asm(vto);
>>        if (!parisc_requires_coherency())
>> -               flush_kernel_dcache_page_asm(vto);
>> +               flush_kernel_dcache_page_addr(vto);
>> }
>> EXPORT_SYMBOL(clear_user_page);
>>
>> @@ -397,10 +397,10 @@ void copy_user_page(void *vto, void *vfrom,
>> unsigned long vaddr,
>>           the kernel mapping. */
>>        preempt_disable();
>>        flush_dcache_page_asm(__pa(vfrom), vaddr);
>> -       preempt_enable();
>>        copy_page_asm(vto, vfrom);
>>        if (!parisc_requires_coherency())
>> -               flush_kernel_dcache_page_asm(vto);
>> +               flush_kernel_dcache_page_addr(vto);
>> +       preempt_enable();
>> }
>> EXPORT_SYMBOL(copy_user_page);
>>
> These two changes should be ineffective.  The only time
> clear_user_page() and copy_user_page() are used is if the architecture
> doesn't supply clear_user_highpage() and copy_user_highpage() along  
> with
> the necessary defines for highmem.h, which we do.

Yes, I added them.

>
> If we go back to the non highpage defines, we've effectively double
> purged, because the kunmap_atomic will do the kernel tlb purge for  
> us as
> well.


Actually, no.  The checks in clear_user_page and copy_user_page are
!parisc_requires_coherency().  They can't affect rp3440.  So, the  
original
code was correct.  So, the improved stability has to have come from  
moving
the preempt lines.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:09:24 2018
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Subject: Re: [PATCH] arch: parisc: kernel: using strlcpy() instead of strcpy()
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To: Wang YanQing <udknight@gmail.com>,
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On 05/30/2013 11:06 PM, Wang YanQing wrote:
> What about add 
> boot_command_line[COMMAND_LINE_SIZE - 1] = '\0';
> to protect the following another strcpy?
> 
> "
> strcpy(command_line, boot_command_line);
> "

If the 'dest' length is not less than COMMAND_LINE_SIZE, the strlcpy()
will copy 'COMMAND_LINE_SIZE - 1' contents, and always set '\0' in the end.

So the next strcpy() will be safe.


Thanks.
-- 
Chen Gang

Asianux Corporation
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On 05/30/2013 11:35 PM, Kyle McMartin wrote:
> On Thu, May 30, 2013 at 09:18:43AM +0800, Chen Gang wrote:
>> > 
>> > 'boot_args' is an input args, and 'boot_command_line' has a fix length.
>> > 
>> > So need use strlcpy() instead of strcpy() to avoid memory overflow.
>> > 
> This is basically impossible, since boot_args is fixed in size by palo,
> initialized to zero, and length checked in the bootloader. It's also
> only 256+4 bytes compared to the 1024 bytes set aside for
> boot_command_line.
> 
> That said, it's harmless to use strlcpy here, and obviously (more)
> correct. Thanks!
> 

OK, thanks.

> Acked-by: Kyle McMartin <kyle@mcmartin.ca>
> 
> 

Thank you. :-)


-- 
Chen Gang

Asianux Corporation

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix kernel BUG at
 arch/parisc/include/asm/mmzone.h:50 (part 2)
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Make sure that we really return -1 (instead of 0x00ff) as node id for
page frame numbers which are not physically available.

This finally fixes the kernel panic when running
cat /proc/kpageflags /proc/kpagecount.

Theoretically this patch now limits the number of physical memory ranges
to 127 instead of 254, but currently we have MAX_PHYSMEM_RANGES
hardcoded to 8 which is sufficient for all existing parisc machines.
    
Signed-off-by: Helge Deller <deller@gmx.de

diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index cc50d33..b6b34a0 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -27,7 +27,7 @@ extern struct node_map_data node_data[];
 
 #define PFNNID_SHIFT (30 - PAGE_SHIFT)
 #define PFNNID_MAP_MAX  512     /* support 512GB */
-extern unsigned char pfnnid_map[PFNNID_MAP_MAX];
+extern signed char pfnnid_map[PFNNID_MAP_MAX];
 
 #ifndef CONFIG_64BIT
 #define pfn_is_io(pfn) ((pfn & (0xf0000000UL >> PAGE_SHIFT)) == (0xf0000000UL >> PAGE_SHIFT))
@@ -46,7 +46,7 @@ static inline int pfn_to_nid(unsigned long pfn)
 	i = pfn >> PFNNID_SHIFT;
 	BUG_ON(i >= ARRAY_SIZE(pfnnid_map));
 
-	return (int)pfnnid_map[i];
+	return pfnnid_map[i];
 }
 
 static inline int pfn_valid(int pfn)
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1c96564..505b56c 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -47,7 +47,7 @@ pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((__section__ (".data..vm0.pt
 
 #ifdef CONFIG_DISCONTIGMEM
 struct node_map_data node_data[MAX_NUMNODES] __read_mostly;
-unsigned char pfnnid_map[PFNNID_MAP_MAX] __read_mostly;
+signed char pfnnid_map[PFNNID_MAP_MAX] __read_mostly;
 #endif
 
 static struct resource data_resource = {
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Subject: [PATCH] parisc: fix serial ports on C8000 workstation
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

The C8000 workstation (64 bit kernel only) has a somewhat different
serial port configuration that other models.
Thonmas Bogendoerfers sent a patch to fix this in September 2010, which
was now minimally modified by me.

Signed-off-by: Helge Deller <deller@gmx.de>
CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de>


diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index 9e2d2e4..8722756 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -1205,6 +1205,7 @@ static struct hp_hardware hp_hardware_list[] = {
 	{HPHW_FIO, 0x004, 0x00320, 0x0, "Metheus Frame Buffer"}, 
 	{HPHW_FIO, 0x004, 0x00340, 0x0, "BARCO CX4500 VME Grphx Cnsl"}, 
 	{HPHW_FIO, 0x004, 0x00360, 0x0, "Hughes TOG VME FDDI"}, 
+	{HPHW_FIO, 0x076, 0x000AD, 0x00, "Crestone Peak RS-232"},
 	{HPHW_IOA, 0x185, 0x0000B, 0x00, "Java BC Summit Port"}, 
 	{HPHW_IOA, 0x1FF, 0x0000B, 0x00, "Hitachi Ghostview Summit Port"}, 
 	{HPHW_IOA, 0x580, 0x0000B, 0x10, "U2-IOA BC Runway Port"}, 
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 9544cdc..e79e006 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -811,6 +811,70 @@ int iosapic_fixup_irq(void *isi_obj, struct pci_dev *pcidev)
 	return pcidev->irq;
 }
 
+static struct iosapic_info *first_isi = NULL;
+
+#ifdef CONFIG_64BIT
+int iosapic_serial_irq(int num)
+{
+	struct iosapic_info *isi = first_isi;
+	struct irt_entry *irte = NULL;  /* only used if PAT PDC */
+	struct vector_info *vi;
+	int isi_line;	/* line used by device */
+
+	/* lookup IRT entry for isi/slot/pin set */
+	irte = &irt_cell[num];
+
+	DBG_IRT("iosapic_serial_irq(): irte %p %x %x %x %x %x %x %x %x\n",
+		irte,
+		irte->entry_type,
+		irte->entry_length,
+		irte->polarity_trigger,
+		irte->src_bus_irq_devno,
+		irte->src_bus_id,
+		irte->src_seg_id,
+		irte->dest_iosapic_intin,
+		(u32) irte->dest_iosapic_addr);
+	isi_line = irte->dest_iosapic_intin;
+
+	/* get vector info for this input line */
+	vi = isi->isi_vector + isi_line;
+	DBG_IRT("iosapic_serial_irq:  line %d vi 0x%p\n", isi_line, vi);
+
+	/* If this IRQ line has already been setup, skip it */
+	if (vi->irte)
+		goto out;
+
+	vi->irte = irte;
+
+	/*
+	 * Allocate processor IRQ
+	 *
+	 * XXX/FIXME The txn_alloc_irq() code and related code should be
+	 * moved to enable_irq(). That way we only allocate processor IRQ
+	 * bits for devices that actually have drivers claiming them.
+	 * Right now we assign an IRQ to every PCI device present,
+	 * regardless of whether it's used or not.
+	 */
+	vi->txn_irq = txn_alloc_irq(8);
+
+	if (vi->txn_irq < 0)
+		panic("I/O sapic: couldn't get TXN IRQ\n");
+
+	/* enable_irq() will use txn_* to program IRdT */
+	vi->txn_addr = txn_alloc_addr(vi->txn_irq);
+	vi->txn_data = txn_alloc_data(vi->txn_irq);
+
+	vi->eoi_addr = isi->addr + IOSAPIC_REG_EOI;
+	vi->eoi_data = cpu_to_le32(vi->txn_data);
+
+	cpu_claim_irq(vi->txn_irq, &iosapic_interrupt_type, vi);
+
+ out:
+
+	return vi->txn_irq;
+}
+#endif
+
 
 /*
 ** squirrel away the I/O Sapic Version
@@ -877,6 +941,8 @@ void *iosapic_register(unsigned long hpa)
 		vip->irqline = (unsigned char) cnt;
 		vip->iosapic = isi;
 	}
+	if (!first_isi)
+		first_isi = isi;
 	return isi;
 }
 
diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/8250/8250_gsc.c
index 097dff9..bb91b47 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -30,6 +30,12 @@ static int __init serial_init_chip(struct parisc_device *dev)
 	unsigned long address;
 	int err;
 
+#ifdef CONFIG_64BIT
+	extern int iosapic_serial_irq(int cellnum);
+	if (!dev->irq && (dev->id.sversion == 0xad))
+		dev->irq = iosapic_serial_irq(dev->mod_index-1);
+#endif
+
 	if (!dev->irq) {
 		/* We find some unattached serial ports by walking native
 		 * busses.  These should be silently ignored.  Otherwise,
@@ -51,7 +57,8 @@ static int __init serial_init_chip(struct parisc_device *dev)
 	memset(&uart, 0, sizeof(uart));
 	uart.port.iotype	= UPIO_MEM;
 	/* 7.272727MHz on Lasi.  Assumed the same for Dino, Wax and Timi. */
-	uart.port.uartclk	= 7272727;
+	uart.port.uartclk	= (dev->id.sversion != 0xad) ?
+					7272727 : 1843200;
 	uart.port.mapbase	= address;
 	uart.port.membase	= ioremap_nocache(address, 16);
 	uart.port.irq	= dev->irq;
@@ -73,6 +80,7 @@ static struct parisc_device_id serial_tbl[] = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00075 },
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008c },
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008d },
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x000ad },
 	{ 0 }
 };
 
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: [PATCH] parisc: fix serial ports on C8000 workstation
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Helge Deller wrote:
> From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> 
> The C8000 workstation (64 bit kernel only) has a somewhat different
> serial port configuration that other models.
> Thonmas Bogendoerfers sent a patch to fix this in September 2010, which
> was now minimally modified by me.

Cool, that explains why it doesn't work for me. And it saves me the time to 
debug what _I_ did wrong ;)

> diff --git a/drivers/tty/serial/8250/8250_gsc.c
> b/drivers/tty/serial/8250/8250_gsc.c index 097dff9..bb91b47 100644
> --- a/drivers/tty/serial/8250/8250_gsc.c
> +++ b/drivers/tty/serial/8250/8250_gsc.c
> @@ -30,6 +30,12 @@ static int __init serial_init_chip(struct parisc_device
> *dev) unsigned long address;
>  	int err;
> 
> +#ifdef CONFIG_64BIT
> +	extern int iosapic_serial_irq(int cellnum);
> +	if (!dev->irq && (dev->id.sversion == 0xad))
> +		dev->irq = iosapic_serial_irq(dev->mod_index-1);
> +#endif
> +

Forward declaration in the middle of a function. Is this permitted? By 
standard and by coding style? Looks strange to me.

>  	if (!dev->irq) {
>  		/* We find some unattached serial ports by walking native
>  		 * busses.  These should be silently ignored.  Otherwise,
> @@ -51,7 +57,8 @@ static int __init serial_init_chip(struct parisc_device
> *dev) memset(&uart, 0, sizeof(uart));
>  	uart.port.iotype	= UPIO_MEM;
>  	/* 7.272727MHz on Lasi.  Assumed the same for Dino, Wax and Timi. */
> -	uart.port.uartclk	= 7272727;
> +	uart.port.uartclk	= (dev->id.sversion != 0xad) ?
> +					7272727 : 1843200;

If there is a nice comment explaining 72 another nice comment for the other 
number should be added.

Eike
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Subject: Re: [PATCH] parisc: fix serial ports on C8000 workstation
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
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	Thomas Bogendoerfer <tsbogend@alpha.franken.de>
To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 9-Jun-13, at 5:49 PM, Rolf Eike Beer wrote:

>> 	/* 7.272727MHz on Lasi.  Assumed the same for Dino, Wax and Timi. */
>> -	uart.port.uartclk	= 7272727;
>> +	uart.port.uartclk	= (dev->id.sversion != 0xad) ?
>> +					7272727 : 1843200;
>
> If there is a nice comment explaining 72 another nice comment for  
> the other
> number should be added.

1.8432 MHz is a common oscillator frequency for UARTs.  See for example,
http://en.wikipedia.org/wiki/Crystal_oscillator_frequencies

Dave
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> > The C8000 workstation (64 bit kernel only) has a somewhat different
> > serial port configuration that other models.
> > Thonmas Bogendoerfers sent a patch to fix this in September 2010, w=
hich
> > was now minimally modified by me.

I shouldn't send patches that late... too many typos and not very good =
patch description :-)

> Cool, that explains why it doesn't work for me. And it saves me the t=
ime to
> debug what _I_ did wrong ;)

Rolf, the original patch from Thomas Bogend=C3=B6rfer including his com=
ments is here:
http://comments.gmane.org/gmane.linux.ports.parisc/3258
(if you need the patch only, go here: https://patchwork.kernel.org/patc=
h/357572/raw/)

Maybe you want to clean up the other parts, e.g. impmi or pci_mmap?

Helge
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: Re: [PATCH] parisc: fix serial ports on C8000 workstation
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On Mon, Jun 10, 2013 at 10:27:09AM +0200, Helge Deller wrote:
> Maybe you want to clean up the other parts, e.g. impmi or pci_mmap?

ipmi is already cleaned up, but I didn't get any response from the
maintainer.

http://www.spinics.net/lists/linux-parisc/msg03191.html

Thomas.

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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: Re: [PATCH] parisc: fix serial ports on C8000 workstation
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Am 10.06.2013 12:00, schrieb Thomas Bogendoerfer:
> On Mon, Jun 10, 2013 at 10:27:09AM +0200, Helge Deller wrote:
>> Maybe you want to clean up the other parts, e.g. impmi or pci_mmap?
> 
> ipmi is already cleaned up, but I didn't get any response from the
> maintainer.
> 
> http://www.spinics.net/lists/linux-parisc/msg03191.html

parisc_registered should be a bool, and you don't reset it on 
unregister_parisc_driver. If this can be compiled as module you get bad 
effects (i.e. OOPS, crash ) on repeated modprobe/rmmod.

> info->irq               = 0; /* no interrup */

There is a 't' missing at the end.

I would say resend the patch, it probably got lost.

Eike
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: provide pci_mmap_page_range() for parisc
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

pci_mmap_page_range() is needed for X11-server support on C8000 with ATI
FireGL card.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index 3234f49..4651540 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -225,4 +225,9 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 	return channel ? 15 : 14;
 }
 
+#define HAVE_PCI_MMAP
+
+extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+	enum pci_mmap_state mmap_state, int write_combine);
+
 #endif /* __ASM_PARISC_PCI_H */
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 6030905..64f2764 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -220,6 +220,33 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
 }
 
 
+int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+			enum pci_mmap_state mmap_state, int write_combine)
+{
+	unsigned long prot;
+
+	/*
+	 * I/O space can be accessed via normal processor loads and stores on
+	 * this platform but for now we elect not to do this and portable
+	 * drivers should not do this anyway.
+	 */
+	if (mmap_state == pci_mmap_io)
+		return -EINVAL;
+
+	if (write_combine)
+		return -EINVAL;
+
+	/*
+	 * Ignore write-combine; for now only return uncached mappings.
+	 */
+	prot = pgprot_val(vma->vm_page_prot);
+	prot |= _PAGE_NO_CACHE;
+	vma->vm_page_prot = __pgprot(prot);
+
+	return remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
+		vma->vm_end - vma->vm_start, vma->vm_page_prot);
+}
+
 /*
  * A driver is enabling the device.  We make sure that all the appropriate
  * bits are set to allow the device to operate as the driver is expecting.
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: fix LMMIO mismatch between PAT length and MASK
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

The LMMIO length reported by PAT and the length given by the LBA MASK
register are not consistent. This leads e.g. to a non-working ATI FireGL
card with the radeon DRM driver since the memory can't be mapped.

Fix this by correctly adjusting the resource sizes.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 1f05913..7dc0e40 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -994,6 +994,15 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 		case PAT_LMMIO:
 			/* used to fix up pre-initialized MEM BARs */
 			if (!lba_dev->hba.lmmio_space.flags) {
+				unsigned long lba_len;
+				lba_len = ~READ_REG32(lba_dev->hba.base_addr
+						+ LBA_LMMIO_MASK);
+				if ((p->end - p->start) != lba_len) {
+					pr_warn("PCI%02x LMMIO mismatch between PAT length (0x%lx) and MASK register (0x%lx), fixing.\n",
+					  (int)lba_dev->hba.bus_num.start,
+						p->end - p->start, lba_len);
+					p->end = p->start + lba_len;
+				}
 				sprintf(lba_dev->hba.lmmio_name,
 						"PCI%02x LMMIO",
 						(int)lba_dev->hba.bus_num.start);
--
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On Fri, Jun 14, 2013 at 12:11 AM, Helge Deller <deller@gmx.de> wrote:
> From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
>
> The LMMIO length reported by PAT and the length given by the LBA MASK
> register are not consistent. This leads e.g. to a non-working ATI FireGL
> card with the radeon DRM driver since the memory can't be mapped.
>
> Fix this by correctly adjusting the resource sizes.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
> index 1f05913..7dc0e40 100644
> --- a/drivers/parisc/lba_pci.c
> +++ b/drivers/parisc/lba_pci.c
> @@ -994,6 +994,15 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
>                 case PAT_LMMIO:
>                         /* used to fix up pre-initialized MEM BARs */
>                         if (!lba_dev->hba.lmmio_space.flags) {
> +                               unsigned long lba_len;
> +                               lba_len = ~READ_REG32(lba_dev->hba.base_addr
> +                                               + LBA_LMMIO_MASK);
> +                               if ((p->end - p->start) != lba_len) {
> +                                       pr_warn("PCI%02x LMMIO mismatch between PAT length (0x%lx) and MASK register (0x%lx), fixing.\n",
> +                                         (int)lba_dev->hba.bus_num.start,
> +                                               p->end - p->start, lba_len);
> +                                       p->end = p->start + lba_len;
> +                               }
>                                 sprintf(lba_dev->hba.lmmio_name,
>                                                 "PCI%02x LMMIO",
>                                                 (int)lba_dev->hba.bus_num.start);
> --

With these two patches, does kernel modesetting (and X11?) work?
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Subject: Re: [PATCH] parisc: fix LMMIO mismatch between PAT length and MASK
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To: Matt Turner <mattst88@gmail.com>, linux-parisc@vger.kernel.org,
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* Matt Turner <mattst88@gmail.com>:
> On Fri, Jun 14, 2013 at 12:11 AM, Helge Deller <deller@gmx.de> wrote:
> > From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> >
> > The LMMIO length reported by PAT and the length given by the LBA MASK
> > register are not consistent. This leads e.g. to a non-working ATI FireGL
> > card with the radeon DRM driver since the memory can't be mapped.
> >
> > Fix this by correctly adjusting the resource sizes.
> >
> > Signed-off-by: Helge Deller <deller@gmx.de>
> >
> > diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
> > index 1f05913..7dc0e40 100644
> > --- a/drivers/parisc/lba_pci.c
> > +++ b/drivers/parisc/lba_pci.c
> > @@ -994,6 +994,15 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
> >                 case PAT_LMMIO:
> >                         /* used to fix up pre-initialized MEM BARs */
> >                         if (!lba_dev->hba.lmmio_space.flags) {
> > +                               unsigned long lba_len;
> > +                               lba_len = ~READ_REG32(lba_dev->hba.base_addr
> > +                                               + LBA_LMMIO_MASK);
> > +                               if ((p->end - p->start) != lba_len) {
> > +                                       pr_warn("PCI%02x LMMIO mismatch between PAT length (0x%lx) and MASK register (0x%lx), fixing.\n",
> > +                                         (int)lba_dev->hba.bus_num.start,
> > +                                               p->end - p->start, lba_len);
> > +                                       p->end = p->start + lba_len;
> > +                               }
> >                                 sprintf(lba_dev->hba.lmmio_name,
> >                                                 "PCI%02x LMMIO",
> >                                                 (int)lba_dev->hba.bus_num.start);
> > --
> 
> With these two patches, does kernel modesetting (and X11?) work?

Yes, C8000 with ATI FireGL works then for me with framebuffer, SMP, serial port...everything I tested so far.

Important: *Disable* RADEON Framebuffer driver, and enable Radeon DRM driver instead!

I did not tested X11 yet (still need to fully install the C8000 with our
unstable) - but Thomas mentioned once that this is needed for X11.

BTW, I'll prepare a new installation CD for all machines soon...hopefully until end of
next week and hopefully when kernel 3.10 is released.

If you want to test, pull from git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
a)  my "for-3.10" branch, then
b)  my "important-for-3.10" branch (two fixed on which I wait for James)...

PS: Does someone has a C800 with 0x77 serial ports? In that case some
small patch to the serial driver is needed to get it detected....

Helge
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* Helge Deller <deller@gmx.de>:
> PS: Does someone has a C800 with 0x77 serial ports? In that case some
> small patch to the serial driver is needed to get it detected....

I meant C8000 of course...
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On Fri, Jun 14, 2013 at 09:11:42AM +0200, Helge Deller wrote:
> From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> 
> The LMMIO length reported by PAT and the length given by the LBA MASK
> register are not consistent. This leads e.g. to a non-working ATI FireGL
> card with the radeon DRM driver since the memory can't be mapped.
> 
> Fix this by correctly adjusting the resource sizes.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>

add my Acked-By or Signed-off-by, whatever you like.

BTW. thanks for cleaning up the patches.

Thomas.

-- 
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good idea.                                                [ RFC1925, 2.3 ]
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On Fri, Jun 14, 2013 at 09:38:27AM +0200, Helge Deller wrote:
> I did not tested X11 yet (still need to fully install the C8000 with our
> unstable) - but Thomas mentioned once that this is needed for X11.

the pci mmap thing is a must for X11 to even get the card detected. This
patch is needed for the FireGL X3 cards with 256MB video memory.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]
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On Fri, Jun 14, 2013 at 09:05:41AM +0200, Helge Deller wrote:
> From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> 
> pci_mmap_page_range() is needed for X11-server support on C8000 with ATI
> FireGL card.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>

You could add my Acked-By or Signed-off-by whatever fits your needs.

Thomas.

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>From 48bbf44a96676ce6f520a408378730c976e9a11e Mon Sep 17 00:00:00 2001
From: James Bottomley <JBottomley@Parallels.com>
Date: Wed, 8 May 2013 14:05:34 -0700
Subject: [PATCH] [PARISC] fix WARNING: at kernel/cpu/idle.c:96

On PA-RISC (and presumably any other arch that doesn't implement its own
arch_cpu_idle), we get this spurious boot warning.  The problem is that the
way the idle task is selected initially using the weak arch_cpu_idle() in
idle.c causes us to enter this place once with interrupts enabled.  Fix this
by disabling interrupts in the weak arch_cpu_idle() code.

Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

---

Thomas, I'm getting a bit impatient: this is a clear bug in the cpu idle
code and we keep getting reports of this as a boot crash on parisc.  If
you don't push it through your tree, I'll take it through the parisc
one.


diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c
index d5585f5..0a4d11e 100644
--- a/kernel/cpu/idle.c
+++ b/kernel/cpu/idle.c
@@ -58,6 +58,7 @@ void __weak arch_cpu_idle_dead(void) { }
 void __weak arch_cpu_idle(void)
 {
 	cpu_idle_force_poll = 1;
+	local_irq_enable();
 }
 
 /*


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On 06/14/2013 11:55 AM, James Bottomley wrote:
>>From 48bbf44a96676ce6f520a408378730c976e9a11e Mon Sep 17 00:00:00 2001
> From: James Bottomley <JBottomley@Parallels.com>
> Date: Wed, 8 May 2013 14:05:34 -0700
> Subject: [PATCH] [PARISC] fix WARNING: at kernel/cpu/idle.c:96
>
> On PA-RISC (and presumably any other arch that doesn't implement its own
> arch_cpu_idle), we get this spurious boot warning.  The problem is that the
> way the idle task is selected initially using the weak arch_cpu_idle() in
> idle.c causes us to enter this place once with interrupts enabled.  Fix this
> by disabling interrupts in the weak arch_cpu_idle() code.

Is this changelog correct?  It looks to me like you are enabling 
interrupts down there.

David Daney


>
> Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
> Cc: stable@vger.kernel.org
> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
>
> ---
>
> Thomas, I'm getting a bit impatient: this is a clear bug in the cpu idle
> code and we keep getting reports of this as a boot crash on parisc.  If
> you don't push it through your tree, I'll take it through the parisc
> one.
>
>
> diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c
> index d5585f5..0a4d11e 100644
> --- a/kernel/cpu/idle.c
> +++ b/kernel/cpu/idle.c
> @@ -58,6 +58,7 @@ void __weak arch_cpu_idle_dead(void) { }
>   void __weak arch_cpu_idle(void)
>   {
>   	cpu_idle_force_poll = 1;
> +	local_irq_enable();

Here     ^^^^^^^^^^^^^^^^


>   }
>
>   /*
>
>
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On Fri, 2013-06-14 at 12:11 -0700, David Daney wrote:
> On 06/14/2013 11:55 AM, James Bottomley wrote:
> >>From 48bbf44a96676ce6f520a408378730c976e9a11e Mon Sep 17 00:00:00 2001
> > From: James Bottomley <JBottomley@Parallels.com>
> > Date: Wed, 8 May 2013 14:05:34 -0700
> > Subject: [PATCH] [PARISC] fix WARNING: at kernel/cpu/idle.c:96
> >
> > On PA-RISC (and presumably any other arch that doesn't implement its own
> > arch_cpu_idle), we get this spurious boot warning.  The problem is that the
> > way the idle task is selected initially using the weak arch_cpu_idle() in
> > idle.c causes us to enter this place once with interrupts enabled.  Fix this
> > by disabling interrupts in the weak arch_cpu_idle() code.
> 
> Is this changelog correct?  It looks to me like you are enabling 
> interrupts down there.

Yes, obvious typo, sorry.  The WARN_ON check is for disabled interrupts
the fix is to enable them.

James


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On Fri, 14 Jun 2013, James Bottomley wrote:

> >From 48bbf44a96676ce6f520a408378730c976e9a11e Mon Sep 17 00:00:00 2001
> From: James Bottomley <JBottomley@Parallels.com>
> Date: Wed, 8 May 2013 14:05:34 -0700
> Subject: [PATCH] [PARISC] fix WARNING: at kernel/cpu/idle.c:96
> 
> On PA-RISC (and presumably any other arch that doesn't implement its own
> arch_cpu_idle), we get this spurious boot warning.  The problem is that the
> way the idle task is selected initially using the weak arch_cpu_idle() in
> idle.c causes us to enter this place once with interrupts enabled.  Fix this
> by disabling interrupts in the weak arch_cpu_idle() code.
> 
> Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
> Cc: stable@vger.kernel.org

What's the stable tag for? This code got merged in 3,10, so stable is
totally irrelevant.

> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
> 
> ---
> 
> Thomas, I'm getting a bit impatient: this is a clear bug in the cpu idle
> code and we keep getting reports of this as a boot crash on parisc.  If
> you don't push it through your tree, I'll take it through the parisc
> one.

Hold your breath. I was not even CC'ed on the original patch and I
admit that I ignored the patch which starts with [PARISC].

If the subject line would have started with [idle], [core/idle] I
definitely would have paid attention.

Aside of that the rest of the subject line is just annoyingly
sloppy. We do not fix a WARNING. That's not what this patch is
about. The patch fixes a problem which got introduced with the idle
rework, period.

I'll pick it up and fix the changelog.

Thanks,

	tglx

> 
> diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c
> index d5585f5..0a4d11e 100644
> --- a/kernel/cpu/idle.c
> +++ b/kernel/cpu/idle.c
> @@ -58,6 +58,7 @@ void __weak arch_cpu_idle_dead(void) { }
>  void __weak arch_cpu_idle(void)
>  {
>  	cpu_idle_force_poll = 1;
> +	local_irq_enable();
>  }
>  
>  /*
> 
> 
> 
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Subject: Re: [PATCH RESEND] fix WARNING: at kernel/cpu/idle.c:96
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Fri, 14 Jun 2013, Thomas Gleixner wrote:
> On Fri, 14 Jun 2013, James Bottomley wrote:
> 
> > >From 48bbf44a96676ce6f520a408378730c976e9a11e Mon Sep 17 00:00:00 2001
> > From: James Bottomley <JBottomley@Parallels.com>
> > Date: Wed, 8 May 2013 14:05:34 -0700
> > Subject: [PATCH] [PARISC] fix WARNING: at kernel/cpu/idle.c:96
> > 
> > On PA-RISC (and presumably any other arch that doesn't implement its own
> > arch_cpu_idle), we get this spurious boot warning.  The problem is that the
> > way the idle task is selected initially using the weak arch_cpu_idle() in
> > idle.c causes us to enter this place once with interrupts enabled.  Fix this
> > by disabling interrupts in the weak arch_cpu_idle() code.
> > 
> > Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
> > Cc: stable@vger.kernel.org
> 
> What's the stable tag for? This code got merged in 3,10, so stable is
> totally irrelevant.
> 
> > Signed-off-by: James Bottomley <JBottomley@Parallels.com>
> > 
> > ---
> > 
> > Thomas, I'm getting a bit impatient: this is a clear bug in the cpu idle
> > code and we keep getting reports of this as a boot crash on parisc.  If
> > you don't push it through your tree, I'll take it through the parisc
> > one.
> 
> Hold your breath. I was not even CC'ed on the original patch and I
> admit that I ignored the patch which starts with [PARISC].
> 
> If the subject line would have started with [idle], [core/idle] I
> definitely would have paid attention.
> 
> Aside of that the rest of the subject line is just annoyingly
> sloppy. We do not fix a WARNING. That's not what this patch is
> about. The patch fixes a problem which got introduced with the idle
> rework, period.
> 
> I'll pick it up and fix the changelog.

And it needs fixing. It says:

"... way the idle task is selected initially using the weak
 arch_cpu_idle() in idle.c causes us to enter this place once with
 interrupts enabled.  Fix this by disabling interrupts in the weak
 arch_cpu_idle() code."

And the patch does:

 void __weak arch_cpu_idle(void)
 {
        cpu_idle_force_poll = 1;
+       local_irq_enable();
 }

Instead of bullying around you might consider to read
Documentation/SubmittingPatches.

Thanks,

	tglx
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH RESEND] fix WARNING: at kernel/cpu/idle.c:96
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On Fri, 2013-06-14 at 22:39 +0200, Thomas Gleixner wrote:
> On Fri, 14 Jun 2013, James Bottomley wrote:
> 
> > >From 48bbf44a96676ce6f520a408378730c976e9a11e Mon Sep 17 00:00:00 2001
> > From: James Bottomley <JBottomley@Parallels.com>
> > Date: Wed, 8 May 2013 14:05:34 -0700
> > Subject: [PATCH] [PARISC] fix WARNING: at kernel/cpu/idle.c:96
> > 
> > On PA-RISC (and presumably any other arch that doesn't implement its own
> > arch_cpu_idle), we get this spurious boot warning.  The problem is that the
> > way the idle task is selected initially using the weak arch_cpu_idle() in
> > idle.c causes us to enter this place once with interrupts enabled.  Fix this
> > by disabling interrupts in the weak arch_cpu_idle() code.
> > 
> > Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
> > Cc: stable@vger.kernel.org
> 
> What's the stable tag for? This code got merged in 3,10, so stable is
> totally irrelevant.

Hm, OK, it's been so long I'm misremembering which kernel versions need
it.

> > Signed-off-by: James Bottomley <JBottomley@Parallels.com>
> > 
> > ---
> > 
> > Thomas, I'm getting a bit impatient: this is a clear bug in the cpu idle
> > code and we keep getting reports of this as a boot crash on parisc.  If
> > you don't push it through your tree, I'll take it through the parisc
> > one.
> 
> Hold your breath. I was not even CC'ed on the original patch and I
> admit that I ignored the patch which starts with [PARISC].

Oh, you were ... I made sure of that. It's thread with subject

Re: [PATCH] parisc: avoid WARNING: at kernel/cpu/idle.c:96

You were cc'd from the one dated Wed, 08 May 2013 14:05:34 -0700

> If the subject line would have started with [idle], [core/idle] I
> definitely would have paid attention.
> 
> Aside of that the rest of the subject line is just annoyingly
> sloppy. We do not fix a WARNING. That's not what this patch is
> about. The patch fixes a problem which got introduced with the idle
> rework, period.
> 
> I'll pick it up and fix the changelog.

Sure, whatever you think is best ... Given Linus' current mood I think
leading with a description of the actual user visible problem being
fixed is a good way to make sure he doesn't get annoyed, but it's your
call.

James




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From: Paul Gortmaker <paul.gortmaker@windriver.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: delete __cpuinit usage from all users
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The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications.  For example, the fix in
commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.

After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out.  Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.

This removes all the parisc uses of the __cpuinit macros.

[1] https://lkml.org/lkml/2013/5/20/589

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---

[This was generated against today's linux-next tree ; I'm assuming all
 pending parisc changes are in there currently.]

 arch/parisc/kernel/firmware.c  | 14 ++++++++------
 arch/parisc/kernel/hardware.c  |  2 +-
 arch/parisc/kernel/processor.c |  6 +++---
 arch/parisc/kernel/smp.c       |  8 ++++----
 4 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index f65fa48..2239590 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -150,7 +150,7 @@ static void convert_to_wide(unsigned long *addr)
 }
 
 #ifdef CONFIG_64BIT
-void __cpuinit set_firmware_width_unlocked(void)
+void set_firmware_width_unlocked(void)
 {
 	int ret;
 
@@ -167,7 +167,7 @@ void __cpuinit set_firmware_width_unlocked(void)
  * This function must be called before any pdc_* function that uses the
  * convert_to_wide function.
  */
-void __cpuinit set_firmware_width(void)
+void set_firmware_width(void)
 {
 	unsigned long flags;
 	spin_lock_irqsave(&pdc_lock, flags);
@@ -175,11 +175,13 @@ void __cpuinit set_firmware_width(void)
 	spin_unlock_irqrestore(&pdc_lock, flags);
 }
 #else
-void __cpuinit set_firmware_width_unlocked(void) {
+void set_firmware_width_unlocked(void)
+{
 	return;
 }
 
-void __cpuinit set_firmware_width(void) {
+void set_firmware_width(void)
+{
 	return;
 }
 #endif /*CONFIG_64BIT*/
@@ -301,7 +303,7 @@ int pdc_chassis_warn(unsigned long *warn)
 	return retval;
 }
 
-int __cpuinit pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
+int pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
 {
 	int ret;
 
@@ -322,7 +324,7 @@ int __cpuinit pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
  * This PDC call returns the presence and status of all the coprocessors
  * attached to the processor.
  */
-int __cpuinit pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info)
+int pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info)
 {
 	int ret;
 	unsigned long flags;
diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index 9e2d2e4..6f4bbb8 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -1366,7 +1366,7 @@ const char *parisc_hardware_description(struct parisc_device_id *id)
 
 
 /* Interpret hversion (ret[0]) from PDC_MODEL(4)/PDC_MODEL_INFO(0) */
-enum cpu_type __cpuinit
+enum cpu_type
 parisc_get_cpu_type(unsigned long hversion)
 {
 	struct hp_cpu_type_mask *ptr;
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index c8fb61e..a128a94 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -73,7 +73,7 @@ extern int update_cr16_clocksource(void);	/* from time.c */
  *
  * FIXME: doesn't do much yet...
  */
-static void __cpuinit
+static void
 init_percpu_prof(unsigned long cpunum)
 {
 	struct cpuinfo_parisc *p;
@@ -92,7 +92,7 @@ init_percpu_prof(unsigned long cpunum)
  * (return 1).  If so, initialize the chip and tell other partners in crime 
  * they have work to do.
  */
-static int __cpuinit processor_probe(struct parisc_device *dev)
+static int processor_probe(struct parisc_device *dev)
 {
 	unsigned long txn_addr;
 	unsigned long cpuid;
@@ -299,7 +299,7 @@ void __init collect_boot_cpu_data(void)
  *
  * o Enable CPU profiling hooks.
  */
-int __cpuinit init_per_cpu(int cpunum)
+int init_per_cpu(int cpunum)
 {
 	int ret;
 	struct pdc_coproc_cfg coproc_cfg;
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index e3614fb..8a252f2 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -62,9 +62,9 @@ static int smp_debug_lvl = 0;
 volatile struct task_struct *smp_init_current_idle_task;
 
 /* track which CPU is booting */
-static volatile int cpu_now_booting __cpuinitdata;
+static volatile int cpu_now_booting;
 
-static int parisc_max_cpus __cpuinitdata = 1;
+static int parisc_max_cpus = 1;
 
 static DEFINE_PER_CPU(spinlock_t, ipi_lock);
 
@@ -328,7 +328,7 @@ void __init smp_callin(void)
 /*
  * Bring one cpu online.
  */
-int __cpuinit smp_boot_one_cpu(int cpuid, struct task_struct *idle)
+int smp_boot_one_cpu(int cpuid, struct task_struct *idle)
 {
 	const struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpuid);
 	long timeout;
@@ -424,7 +424,7 @@ void smp_cpus_done(unsigned int cpu_max)
 }
 
 
-int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle)
+int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 {
 	if (cpu != 0 && cpu < parisc_max_cpus)
 		smp_boot_one_cpu(cpu, tidle);
-- 
1.8.1.2

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From - Thu Nov 08 21:09:26 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: delete __cpuinit usage from all users
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org
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On Mon, 2013-06-17 at 16:34 -0400, Paul Gortmaker wrote:
> The __cpuinit type of throwaway sections might have made sense
> some time ago when RAM was more constrained, but now the savings
> do not offset the cost and complications.  For example, the fix in
> commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
> is a good example of the nasty type of bugs that can be created
> with improper use of the various __init prefixes.
> 
> After a discussion on LKML[1] it was decided that cpuinit should go
> the way of devinit and be phased out.  Once all the users are gone,
> we can then finally remove the macros themselves from linux/init.h.

Fine by us ... I'd recommend just rolling this into one patch for all
the cpuinit tags and sending it via the trivial tree (which goes to
linux-next) that way we'll know if we do anything to compromise it.

James


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From - Thu Nov 08 21:09:26 2018
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From: Paul Gortmaker <paul.gortmaker@windriver.com>
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Subject: Re: [PATCH] parisc: delete __cpuinit usage from all users
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Cc: Helge Deller <deller@gmx.de>, <linux-parisc@vger.kernel.org>
To: James Bottomley <James.Bottomley@hansenpartnership.com>
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On 13-06-17 06:47 PM, James Bottomley wrote:
> On Mon, 2013-06-17 at 16:34 -0400, Paul Gortmaker wrote:
>> The __cpuinit type of throwaway sections might have made sense
>> some time ago when RAM was more constrained, but now the savings
>> do not offset the cost and complications.  For example, the fix in
>> commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
>> is a good example of the nasty type of bugs that can be created
>> with improper use of the various __init prefixes.
>>
>> After a discussion on LKML[1] it was decided that cpuinit should go
>> the way of devinit and be phased out.  Once all the users are gone,
>> we can then finally remove the macros themselves from linux/init.h.
> 
> Fine by us ... I'd recommend just rolling this into one patch for all
> the cpuinit tags and sending it via the trivial tree (which goes to
> linux-next) that way we'll know if we do anything to compromise it.

Thanks James,

I'll add an ack'd by for you and keep it with the arch agnostic
chunks.  I do want it to go by the arch maintainers 1st though,
and give them 1st right of refusal on carrying the change; e.g.
for MIPS, Ralf wanted to carry the patch due to the level of
tree activity still pending there.  And for sparc, it touches
some trampoline code, so I want to be sure I don't inflict a
silent boot death on the SPARC folks.  It will get in linux-next
though -- I'll be asking Stephen for that shortly.

P.
--

> 
> James
> 
> 
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From - Thu Nov 08 21:09:26 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: fix LMMIO mismatch between PAT length and MASK
 register
Date: Tue, 18 Jun 2013 23:21:25 +0200
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To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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* Helge Deller <deller@gmx.de>:
> From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> 
> The LMMIO length reported by PAT and the length given by the LBA MASK
> register are not consistent. This leads e.g. to a non-working ATI FireGL
> card with the radeon DRM driver since the memory can't be mapped.
> 
> Fix this by correctly adjusting the resource sizes.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>

This is an updated/cleaner approach to this problem.
Still I want some more testing on it with various machines.

Basically we now extend the LMMIO range up to 256MB above the initial
start of the region if the value of the MASK register seems to allow it.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 1f05913..acc3fe8 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -613,6 +613,46 @@ truncate_pat_collision(struct resource *root, struct resource *new)
 	return 0;	/* truncation successful */
 }
 
+/*
+ * extend_lmmio_len: extend lmmio range to maximum length
+ */
+static unsigned long
+extend_lmmio_len(unsigned long start, unsigned long end, unsigned long lba_len)
+{
+	struct resource *tmp;
+
+	pr_debug("LMMIO mismatch: PAT length = 0x%lx, MASK register = 0x%lx\n",
+		end - start, lba_len);
+
+	lba_len = min(lba_len+1, 256UL*1024*1024); /* limit to 256 MB */
+
+	pr_info("LBA: lmmio_space [0x%lx-0x%lx] - original\n", start, end);
+
+	end += lba_len;
+	if (end < start) /* fix overflow */
+		end = -1ULL;
+
+	pr_debug("LBA: lmmio_space [0x%lx-0x%lx] - current\n", start, end);
+
+	/* first overlap */
+	for (tmp = iomem_resource.child; tmp; tmp = tmp->sibling) {
+		pr_debug("LBA: testing %pR\n", tmp);
+		if (tmp->start == start)
+			continue; /* ignore ourself */
+		if (tmp->end < start)
+			continue;
+		if (tmp->start > end)
+			continue;
+		if (end >= tmp->start)
+			end = tmp->start - 1;
+	}
+
+	pr_info("LBA: lmmio_space [0x%lx-0x%lx] - new\n", start, end);
+
+	/* return new end */
+	return end;
+}
+
 #else
 #define truncate_pat_collision(r,n)  (0)
 #endif
@@ -994,6 +1034,14 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 		case PAT_LMMIO:
 			/* used to fix up pre-initialized MEM BARs */
 			if (!lba_dev->hba.lmmio_space.flags) {
+				unsigned long lba_len;
+
+				lba_len = ~READ_REG32(lba_dev->hba.base_addr
+						+ LBA_LMMIO_MASK);
+				if ((p->end - p->start) != lba_len)
+					p->end = extend_lmmio_len(p->start,
+						p->end, lba_len);
+
 				sprintf(lba_dev->hba.lmmio_name,
 						"PCI%02x LMMIO",
 						(int)lba_dev->hba.bus_num.start);
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Subject: [GIT PULL] parisc updates for v3.10
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi Linus,

Please pull the latest parisc architecture fixes from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.10

It contains a kernel segfault fix when reading /proc/kpageflags or /proc/kpagecount,
two fixes for the serial port and PCI graphic card support on C8000 workstations
and a fix to use unshadowed registers for flushing D- and I-caches.


This patchset touches parisc-specific source files only.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (1):
      parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50 (part 2)

John David Anglin (1):
      parisc: Use unshadowed index register for flush instructions in flush_dcache_page_asm and flush_icache_page_asm

Thomas Bogendoerfer (2):
      parisc: fix serial ports on C8000 workstation
      parisc: provide pci_mmap_page_range() for parisc

 arch/parisc/include/asm/mmzone.h   |  4 +-
 arch/parisc/include/asm/pci.h      |  5 +++
 arch/parisc/kernel/hardware.c      |  1 +
 arch/parisc/kernel/pacache.S       | 76 +++++++++++++++++++-------------------
 arch/parisc/kernel/pci.c           | 27 ++++++++++++++
 arch/parisc/mm/init.c              |  2 +-
 drivers/parisc/iosapic.c           | 66 +++++++++++++++++++++++++++++++++
 drivers/tty/serial/8250/8250_gsc.c | 10 ++++-
 8 files changed, 149 insertions(+), 42 deletions(-)
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Hi Greg,

could you please queue up the following upstream commits (in this order)
for the next v3.9.x stable kernel?

9372450cc22d185f708e5cc3557cf991be4b7dc5 parisc: add kernel stack overflow check
200c880420a2c02a0899120ce52d801fad705b90 parisc: implement irq stacks
cd85d5514d5c4d7e78abac923fc032457d0c5091 parisc: more irq statistics in /proc/interrupts
0fc537d1d655cdae69b489dbba46ad617cfc1373 parisc: tlb flush counting fix for SMP and UP
1ab4ce762370b82870834899e49c08129d7ae271 parisc: remove the second argument of kmap_atomic()
416821d3d68164909b2cbcf398e4ba0797f5f8a2 parisc: implement irq stacks - part 2 (v2)
949451b9b19da5e998778eb78929aafc73b5c227 parisc: add rp5470 entry to machine database
d0c3be806a3fe7f4abdb0f7e7287addb55e73f35 parisc: show number of FPE and unaligned access handler calls in /proc/interrupts
b63a2bbc0b9b106a93e11952ab057e2408f2eb02 parisc: make interrupt and interruption stack allocation reentrant
d96b51ec14650b490ab98e738bcc02309396e5bc parisc: fix irq stack on UP and SMP
3f108de96ba449a8df3d7e3c053bf890fee2cb95 parisc: memory overflow, 'name' length is too short for using
ae249b5fa27f9fba25aa59664d4338efc2dd2394 parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50
766039022a480ede847659daaa78772bdcc598ae parisc: rename "CONFIG_PA7100" to "CONFIG_PA7000"
ea99b1adf22abd62bdcf14b1c9a0a4d3664eefd8 parisc: kernel: using strlcpy() instead of strcpy()
4edb38695d9a3cd62739f8595e21f36f0aabf4c2 parisc: parport0: fix this legacy no-device port driver!
91ea8207168793b365322be3c90a4ee9e8b03ed4 parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50 (part 2)
9a66d1869d90f13fbaf83dcce5b1aeec86fbc699 parisc: fix serial ports on C8000 workstation
2cc7138f4347df939ce03f313e3d87794bab36f8 parisc: provide pci_mmap_page_range() for parisc

Those backports are necessary for the parisc architecture to reach a
similiar stability and security level as upstream v3.10 will have (for
example, without the irq stack we crashed badly because of stack
overflows).

All source files touched are only used by the parisc architecture.

Thanks,
Helge

----------
diffstat:
 arch/parisc/Kconfig                   |   8 ++
 arch/parisc/Kconfig.debug             |  11 ++
 arch/parisc/Makefile                  |   2 +-
 arch/parisc/include/asm/assembly.h    |   1 -
 arch/parisc/include/asm/hardirq.h     |  38 ++++++-
 arch/parisc/include/asm/mmzone.h      |   7 +-
 arch/parisc/include/asm/pci.h         |   5 +
 arch/parisc/include/asm/processor.h   |   4 -
 arch/parisc/include/asm/thread_info.h |   2 +-
 arch/parisc/include/asm/tlbflush.h    |   2 +
 arch/parisc/kernel/cache.c            |   6 +-
 arch/parisc/kernel/drivers.c          |   2 +-
 arch/parisc/kernel/entry.S            |  60 +++++++++--
 arch/parisc/kernel/hardware.c         |   2 +
 arch/parisc/kernel/irq.c              | 198 +++++++++++++++++++++++++++++++++-
 arch/parisc/kernel/pci.c              |  27 +++++
 arch/parisc/kernel/setup.c            |   3 +-
 arch/parisc/kernel/smp.c              |  14 +--
 arch/parisc/kernel/traps.c            |   1 +
 arch/parisc/kernel/unaligned.c        |   3 +
 arch/parisc/kernel/vmlinux.lds.S      |   2 +-
 arch/parisc/mm/init.c                 |   4 +-
 drivers/parisc/iosapic.c              |  66 ++++++++++++
 drivers/parport/parport_gsc.c         |   6 +-
 drivers/parport/parport_gsc.h         |   2 +-
 drivers/tty/serial/8250/8250_gsc.c    |  10 +-
 26 files changed, 437 insertions(+), 49 deletions(-)
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From - Thu Nov 08 21:09:26 2018
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From: Greg KH <gregkh@linuxfoundation.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.stable
Subject: Re: [PATCH] parisc stable patches for v3.9.x
Date: Fri, 21 Jun 2013 08:39:23 -0700
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To: Helge Deller <deller@gmx.de>
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On Thu, Jun 20, 2013 at 11:54:29PM +0200, Helge Deller wrote:
> Hi Greg,
> 
> could you please queue up the following upstream commits (in this order)
> for the next v3.9.x stable kernel?
> 
> 9372450cc22d185f708e5cc3557cf991be4b7dc5 parisc: add kernel stack overflow check
> 200c880420a2c02a0899120ce52d801fad705b90 parisc: implement irq stacks
> cd85d5514d5c4d7e78abac923fc032457d0c5091 parisc: more irq statistics in /proc/interrupts
> 0fc537d1d655cdae69b489dbba46ad617cfc1373 parisc: tlb flush counting fix for SMP and UP
> 1ab4ce762370b82870834899e49c08129d7ae271 parisc: remove the second argument of kmap_atomic()
> 416821d3d68164909b2cbcf398e4ba0797f5f8a2 parisc: implement irq stacks - part 2 (v2)
> 949451b9b19da5e998778eb78929aafc73b5c227 parisc: add rp5470 entry to machine database
> d0c3be806a3fe7f4abdb0f7e7287addb55e73f35 parisc: show number of FPE and unaligned access handler calls in /proc/interrupts
> b63a2bbc0b9b106a93e11952ab057e2408f2eb02 parisc: make interrupt and interruption stack allocation reentrant
> d96b51ec14650b490ab98e738bcc02309396e5bc parisc: fix irq stack on UP and SMP
> 3f108de96ba449a8df3d7e3c053bf890fee2cb95 parisc: memory overflow, 'name' length is too short for using
> ae249b5fa27f9fba25aa59664d4338efc2dd2394 parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50
> 766039022a480ede847659daaa78772bdcc598ae parisc: rename "CONFIG_PA7100" to "CONFIG_PA7000"
> ea99b1adf22abd62bdcf14b1c9a0a4d3664eefd8 parisc: kernel: using strlcpy() instead of strcpy()
> 4edb38695d9a3cd62739f8595e21f36f0aabf4c2 parisc: parport0: fix this legacy no-device port driver!
> 91ea8207168793b365322be3c90a4ee9e8b03ed4 parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50 (part 2)
> 9a66d1869d90f13fbaf83dcce5b1aeec86fbc699 parisc: fix serial ports on C8000 workstation
> 2cc7138f4347df939ce03f313e3d87794bab36f8 parisc: provide pci_mmap_page_range() for parisc
> 
> Those backports are necessary for the parisc architecture to reach a
> similiar stability and security level as upstream v3.10 will have (for
> example, without the irq stack we crashed badly because of stack
> overflows).
> 
> All source files touched are only used by the parisc architecture.

All now applied, thanks.

greg k-h
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From: Helge Deller <deller@gmx.de>
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Subject: Fwd: [RFC PATCH 11/16] hppa: locks: remove unused arch_*_relax operations
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Thanks Will,

forwarding to linux-parisc@vger.kernel.org so that it gets into parisc patchwork.

I'll queue this patch up for 3.11 if it's OK for you.

Helge

-------- Original Message --------
Subject: [RFC PATCH 11/16] hppa: locks: remove unused arch_*_relax operations
Date: Fri, 21 Jun 2013 18:17:32 +0100
From: Will Deacon <will.deacon@arm.com>
To: linux-arch@vger.kernel.org
CC: Will Deacon <will.deacon@arm.com>, Helge Deller <deller@gmx.de>

The arch_{spin,read,write}_relax macros are not used anywhere in the
kernel and are typically just aliases for cpu_relax().

This patch removes the unused definitions for parisc.

Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/parisc/include/asm/spinlock.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index 3516e0b..64f2992 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -191,8 +191,4 @@ static __inline__ int arch_write_can_lock(arch_rwlock_t *rw)
 #define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
 #define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
 
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()

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Subject: [PATCH] parisc: more capabilities info in /proc/cpuinfo
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index c8fb61e..4997909 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -374,7 +374,20 @@ show_cpuinfo (struct seq_file *m, void *v)
 			seq_printf(m, " os32");
 		if (boot_cpu_data.pdc.capabilities & PDC_MODEL_OS64)
 			seq_printf(m, " os64");
-		seq_printf(m, "\n");
+		if (boot_cpu_data.pdc.capabilities & PDC_MODEL_IOPDIR_FDC)
+			seq_printf(m, " iopdir_fdc");
+		switch (boot_cpu_data.pdc.capabilities & PDC_MODEL_NVA_MASK) {
+			case PDC_MODEL_NVA_SUPPORTED:
+				seq_printf(m, " nva_supported");
+				break;
+			case PDC_MODEL_NVA_SLOW:
+				seq_printf(m, " nva_slow");
+				break;
+			case PDC_MODEL_NVA_UNSUPPORTED:
+				seq_printf(m, " needs_equivalent_aliasing");
+				break;
+		}
+		seq_printf(m, " (0x%02lx)\n", boot_cpu_data.pdc.capabilities);
 
 		seq_printf(m, "model\t\t: %s\n"
 				"model name\t: %s\n",
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Subject: Re: Fwd: [RFC PATCH 11/16] hppa: locks: remove unused arch_*_relax
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On Fri, Jun 21, 2013 at 07:32:37PM +0100, Helge Deller wrote:
> Thanks Will,

Hi Helge,

> forwarding to linux-parisc@vger.kernel.org so that it gets into parisc patchwork.
> 
> I'll queue this patch up for 3.11 if it's OK for you.

Fine by me. Each patch in the series is self-contained, so they can get
merged via the arch trees without any problem.

Thanks!

Will
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From: Will Deacon <will.deacon@arm.com>
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Subject: Re: Fwd: [RFC PATCH 11/16] hppa: locks: remove unused arch_*_relax
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Date: Mon, 24 Jun 2013 12:37:22 +0100
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On Mon, Jun 24, 2013 at 09:55:22AM +0100, Will Deacon wrote:
> On Fri, Jun 21, 2013 at 07:32:37PM +0100, Helge Deller wrote:
> > Thanks Will,
> 
> Hi Helge,
> 
> > forwarding to linux-parisc@vger.kernel.org so that it gets into parisc patchwork.
> > 
> > I'll queue this patch up for 3.11 if it's OK for you.
> 
> Fine by me. Each patch in the series is self-contained, so they can get
> merged via the arch trees without any problem.

Wait a second; turns out the GENERIC_LOCKBREAK code *can* emit calls to
these functions, so I'll need to sort that out before you can take the
arch-side of things.

Better hold off on this until I have that fixed.

Cheers,

Will
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From: Paul Gortmaker <paul.gortmaker-CWA4WttNNZF54TAoqtyWWQ@public.gmane.org>
Newsgroups: gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.kernel,gmane.linux.ports.sh.devel,gmane.linux.ports.openrisc,gmane.linux.ports.sparc,gmane.linux.ports.ia64,gmane.linux.network,gmane.linux.ports.hexagon,gmane.linux.power-management.general,gmane.linux.kernel.cpufreq,gmane.linux.drivers.sensors,gmane.linux.acpi.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH-next 00/32] Delete support for __cpuinit
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        Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>,
        linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Viresh Kumar <viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
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This is the whole patch queue for removal of __cpuinit support
against the latest linux-next tree (Jun24th).  Some of you may
have already seen chunks of it, or already read the logistics
of what is being done (and why) here:

  https://lkml.org/lkml/2013/6/20/513

I won't repeat all that here again, other than to say this send
is to ensure arch/subsystem maintainers get a 2nd chance to know
what is going on and to look at what is being proposed for their
area of code.  That, and to ensure one complete continuous copy
of it gets mailed out.  You can also see the patch queue here:

  http://git.kernel.org/cgit/linux/kernel/git/paulg/cpuinit-delete.git

If you've noticed that a chunk for MIPS isn't present here, that
is because it has already been queued in the linux-mips for-next
branch.

Thanks,
Paul.

---
Cc: Len Brown <lenb-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
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Paul Gortmaker (32):
  init.h: remove __cpuinit sections from the kernel
  modpost: remove all traces of cpuinit/cpuexit sections
  alpha: delete __cpuinit usage from all users
  powerpc: delete __cpuinit usage from all users
  parisc: delete __cpuinit usage from all users
  ia64: delete __cpuinit usage from all ia64 users
  arm: delete __cpuinit/__CPUINIT usage from all ARM users
  sparc: delete __cpuinit/__CPUINIT usage from all users
  arm64: delete __cpuinit usage from all users
  arc: delete __cpuinit usage from all arc files
  blackfin: delete __cpuinit usage from all blackfin files
  s390: delete __cpuinit usage from all s390 files
  sh: delete __cpuinit usage from all sh files
  tile: delete __cpuinit usage from all tile files
  metag: delete __cpuinit usage from all metag files
  cris: delete __cpuinit usage from all cris files
  frv: delete __cpuinit usage from all frv files
  hexagon: delete __cpuinit usage from all hexagon files
  m32r: delete __cpuinit usage from all m32r files
  openrisc: delete __cpuinit usage from all openrisc files
  xtensa: delete __cpuinit usage from all xtensa files
  score: delete __cpuinit usage from all score files
  x86: delete __cpuinit usage from all x86 files
  clocksource+irqchip: delete __cpuinit usage from all related files
  cpufreq: delete __cpuinit usage from all cpufreq files
  hwmon: delete __cpuinit usage from all hwmon files
  acpi: delete __cpuinit usage from all acpi files
  net: delete __cpuinit usage from all net files
  rcu: delete __cpuinit usage from all rcu files
  kernel: delete __cpuinit usage from all core kernel files
  drivers: delete __cpuinit usage from all remaining drivers files
  block: delete __cpuinit usage from all block files

 Documentation/cpu-hotplug.txt                 |  6 +--
 arch/alpha/kernel/smp.c                       | 10 ++---
 arch/alpha/kernel/traps.c                     |  4 +-
 arch/arc/include/asm/irq.h                    |  2 +-
 arch/arc/kernel/irq.c                         |  2 +-
 arch/arc/kernel/setup.c                       | 10 ++---
 arch/arc/kernel/smp.c                         |  4 +-
 arch/arc/kernel/time.c                        |  6 +--
 arch/arc/mm/cache_arc700.c                    |  4 +-
 arch/arc/mm/tlb.c                             |  4 +-
 arch/arm/common/mcpm_platsmp.c                |  4 +-
 arch/arm/include/asm/arch_timer.h             |  2 +-
 arch/arm/kernel/head-common.S                 |  1 -
 arch/arm/kernel/head.S                        |  1 -
 arch/arm/kernel/hw_breakpoint.c               |  4 +-
 arch/arm/kernel/perf_event_cpu.c              |  6 +--
 arch/arm/kernel/psci_smp.c                    |  3 +-
 arch/arm/kernel/smp.c                         | 18 ++++----
 arch/arm/kernel/smp_twd.c                     |  6 +--
 arch/arm/lib/delay.c                          |  2 +-
 arch/arm/mach-exynos/headsmp.S                |  2 -
 arch/arm/mach-exynos/platsmp.c                |  4 +-
 arch/arm/mach-highbank/platsmp.c              |  2 +-
 arch/arm/mach-imx/platsmp.c                   |  2 +-
 arch/arm/mach-msm/headsmp.S                   |  2 -
 arch/arm/mach-msm/platsmp.c                   |  6 +--
 arch/arm/mach-msm/timer.c                     |  4 +-
 arch/arm/mach-mvebu/coherency.c               |  2 +-
 arch/arm/mach-mvebu/headsmp.S                 |  2 -
 arch/arm/mach-mvebu/platsmp.c                 |  5 +--
 arch/arm/mach-omap2/omap-headsmp.S            |  2 -
 arch/arm/mach-omap2/omap-mpuss-lowpower.c     |  2 +-
 arch/arm/mach-omap2/omap-smp.c                |  4 +-
 arch/arm/mach-omap2/omap-wakeupgen.c          |  4 +-
 arch/arm/mach-prima2/headsmp.S                |  2 -
 arch/arm/mach-prima2/platsmp.c                |  4 +-
 arch/arm/mach-shmobile/headsmp-scu.S          |  1 -
 arch/arm/mach-shmobile/headsmp.S              |  2 -
 arch/arm/mach-shmobile/smp-emev2.c            |  2 +-
 arch/arm/mach-shmobile/smp-r8a7779.c          |  2 +-
 arch/arm/mach-shmobile/smp-sh73a0.c           |  2 +-
 arch/arm/mach-socfpga/headsmp.S               |  1 -
 arch/arm/mach-socfpga/platsmp.c               |  2 +-
 arch/arm/mach-spear/generic.h                 |  2 +-
 arch/arm/mach-spear/platsmp.c                 |  4 +-
 arch/arm/mach-tegra/platsmp.c                 |  4 +-
 arch/arm/mach-tegra/pm.c                      |  2 +-
 arch/arm/mach-ux500/platsmp.c                 |  4 +-
 arch/arm/mach-zynq/common.h                   |  2 +-
 arch/arm/mach-zynq/headsmp.S                  |  2 -
 arch/arm/mach-zynq/platsmp.c                  |  6 +--
 arch/arm/mm/proc-arm1020.S                    |  2 -
 arch/arm/mm/proc-arm1020e.S                   |  2 -
 arch/arm/mm/proc-arm1022.S                    |  2 -
 arch/arm/mm/proc-arm1026.S                    |  3 --
 arch/arm/mm/proc-arm720.S                     |  2 -
 arch/arm/mm/proc-arm740.S                     |  2 -
 arch/arm/mm/proc-arm7tdmi.S                   |  2 -
 arch/arm/mm/proc-arm920.S                     |  2 -
 arch/arm/mm/proc-arm922.S                     |  2 -
 arch/arm/mm/proc-arm925.S                     |  2 -
 arch/arm/mm/proc-arm926.S                     |  2 -
 arch/arm/mm/proc-arm940.S                     |  2 -
 arch/arm/mm/proc-arm946.S                     |  2 -
 arch/arm/mm/proc-arm9tdmi.S                   |  2 -
 arch/arm/mm/proc-fa526.S                      |  2 -
 arch/arm/mm/proc-feroceon.S                   |  2 -
 arch/arm/mm/proc-mohawk.S                     |  2 -
 arch/arm/mm/proc-sa110.S                      |  2 -
 arch/arm/mm/proc-sa1100.S                     |  2 -
 arch/arm/mm/proc-v6.S                         |  2 -
 arch/arm/mm/proc-v7-2level.S                  |  4 --
 arch/arm/mm/proc-v7-3level.S                  |  4 --
 arch/arm/mm/proc-v7.S                         |  2 -
 arch/arm/mm/proc-xsc3.S                       |  2 -
 arch/arm/mm/proc-xscale.S                     |  2 -
 arch/arm/plat-versatile/platsmp.c             |  6 +--
 arch/arm64/include/asm/arch_timer.h           |  2 +-
 arch/arm64/kernel/debug-monitors.c            |  6 +--
 arch/arm64/kernel/hw_breakpoint.c             |  4 +-
 arch/arm64/kernel/smp.c                       |  8 ++--
 arch/blackfin/kernel/perf_event.c             |  2 +-
 arch/blackfin/kernel/setup.c                  |  4 +-
 arch/blackfin/mach-bf561/smp.c                |  6 +--
 arch/blackfin/mach-common/cache-c.c           |  4 +-
 arch/blackfin/mach-common/ints-priority.c     |  2 +-
 arch/blackfin/mach-common/smp.c               |  8 ++--
 arch/cris/arch-v32/kernel/smp.c               |  2 +-
 arch/frv/kernel/setup.c                       |  2 +-
 arch/hexagon/kernel/setup.c                   |  2 +-
 arch/hexagon/kernel/smp.c                     |  4 +-
 arch/ia64/kernel/acpi.c                       |  4 +-
 arch/ia64/kernel/err_inject.c                 |  8 ++--
 arch/ia64/kernel/mca.c                        | 12 ++---
 arch/ia64/kernel/numa.c                       |  4 +-
 arch/ia64/kernel/palinfo.c                    |  4 +-
 arch/ia64/kernel/salinfo.c                    |  4 +-
 arch/ia64/kernel/setup.c                      | 10 ++---
 arch/ia64/kernel/smpboot.c                    |  8 ++--
 arch/ia64/kernel/topology.c                   | 18 ++++----
 arch/ia64/mm/contig.c                         |  3 +-
 arch/ia64/mm/discontig.c                      |  2 +-
 arch/ia64/mm/numa.c                           |  2 +-
 arch/ia64/sn/kernel/setup.c                   |  8 ++--
 arch/ia64/xen/hypervisor.c                    |  2 +-
 arch/m32r/kernel/smpboot.c                    |  2 +-
 arch/metag/kernel/perf/perf_event.c           |  6 +--
 arch/metag/kernel/smp.c                       | 16 +++----
 arch/metag/kernel/traps.c                     |  2 +-
 arch/openrisc/kernel/setup.c                  |  2 +-
 arch/parisc/kernel/firmware.c                 | 14 +++---
 arch/parisc/kernel/hardware.c                 |  2 +-
 arch/parisc/kernel/processor.c                |  6 +--
 arch/parisc/kernel/smp.c                      |  8 ++--
 arch/powerpc/include/asm/rtas.h               |  4 +-
 arch/powerpc/include/asm/vdso.h               |  2 +-
 arch/powerpc/kernel/cacheinfo.c               | 36 ++++++++-------
 arch/powerpc/kernel/rtas.c                    |  4 +-
 arch/powerpc/kernel/smp.c                     |  4 +-
 arch/powerpc/kernel/sysfs.c                   |  6 +--
 arch/powerpc/kernel/time.c                    |  1 -
 arch/powerpc/kernel/vdso.c                    |  2 +-
 arch/powerpc/mm/44x_mmu.c                     |  6 +--
 arch/powerpc/mm/hash_utils_64.c               |  2 +-
 arch/powerpc/mm/mmu_context_nohash.c          |  6 +--
 arch/powerpc/mm/numa.c                        |  7 ++-
 arch/powerpc/mm/tlb_nohash.c                  |  2 +-
 arch/powerpc/perf/core-book3s.c               |  4 +-
 arch/powerpc/platforms/44x/currituck.c        |  4 +-
 arch/powerpc/platforms/44x/iss4xx.c           |  4 +-
 arch/powerpc/platforms/85xx/smp.c             |  6 +--
 arch/powerpc/platforms/powermac/smp.c         |  2 +-
 arch/powerpc/platforms/powernv/smp.c          |  2 +-
 arch/s390/kernel/cache.c                      | 15 +++----
 arch/s390/kernel/perf_cpum_cf.c               |  4 +-
 arch/s390/kernel/processor.c                  |  2 +-
 arch/s390/kernel/smp.c                        | 17 ++++---
 arch/s390/kernel/sysinfo.c                    |  2 +-
 arch/s390/kernel/vtime.c                      |  6 +--
 arch/s390/mm/fault.c                          |  4 +-
 arch/score/mm/tlb-score.c                     |  2 +-
 arch/sh/kernel/cpu/init.c                     | 18 ++++----
 arch/sh/kernel/cpu/sh2/probe.c                |  2 +-
 arch/sh/kernel/cpu/sh2a/probe.c               |  2 +-
 arch/sh/kernel/cpu/sh3/probe.c                |  2 +-
 arch/sh/kernel/cpu/sh4/probe.c                |  2 +-
 arch/sh/kernel/cpu/sh4a/smp-shx3.c            |  6 +--
 arch/sh/kernel/cpu/sh5/probe.c                |  2 +-
 arch/sh/kernel/perf_event.c                   |  4 +-
 arch/sh/kernel/process.c                      |  2 +-
 arch/sh/kernel/setup.c                        |  2 +-
 arch/sh/kernel/smp.c                          |  8 ++--
 arch/sh/kernel/traps_32.c                     |  2 +-
 arch/sh/kernel/traps_64.c                     |  2 +-
 arch/sh/mm/tlb-sh5.c                          |  2 +-
 arch/sparc/kernel/ds.c                        | 11 ++---
 arch/sparc/kernel/entry.h                     |  2 +-
 arch/sparc/kernel/hvtramp.S                   |  1 -
 arch/sparc/kernel/irq_64.c                    |  5 ++-
 arch/sparc/kernel/leon_smp.c                  | 10 ++---
 arch/sparc/kernel/mdesc.c                     | 34 +++++++-------
 arch/sparc/kernel/smp_32.c                    | 20 ++++-----
 arch/sparc/kernel/smp_64.c                    |  9 ++--
 arch/sparc/kernel/sun4d_smp.c                 |  6 +--
 arch/sparc/kernel/sun4m_smp.c                 |  6 +--
 arch/sparc/kernel/sysfs.c                     |  4 +-
 arch/sparc/kernel/trampoline_32.S             |  3 --
 arch/sparc/kernel/trampoline_64.S             |  2 -
 arch/sparc/mm/init_64.c                       |  2 +-
 arch/sparc/mm/srmmu.c                         | 12 ++---
 arch/tile/kernel/irq.c                        |  2 +-
 arch/tile/kernel/messaging.c                  |  2 +-
 arch/tile/kernel/setup.c                      | 12 ++---
 arch/tile/kernel/smpboot.c                    |  8 ++--
 arch/tile/kernel/time.c                       |  2 +-
 arch/x86/include/asm/cpu.h                    |  2 +-
 arch/x86/include/asm/microcode.h              |  4 +-
 arch/x86/include/asm/microcode_intel.h        |  4 +-
 arch/x86/include/asm/mmconfig.h               |  4 +-
 arch/x86/include/asm/mpspec.h                 |  2 +-
 arch/x86/include/asm/numa.h                   |  6 +--
 arch/x86/include/asm/prom.h                   |  2 +-
 arch/x86/include/asm/smp.h                    |  2 +-
 arch/x86/kernel/acpi/boot.c                   |  6 +--
 arch/x86/kernel/apic/apic.c                   | 30 ++++++-------
 arch/x86/kernel/apic/apic_numachip.c          |  2 +-
 arch/x86/kernel/apic/es7000_32.c              |  2 +-
 arch/x86/kernel/apic/numaq_32.c               |  2 +-
 arch/x86/kernel/apic/x2apic_cluster.c         |  2 +-
 arch/x86/kernel/apic/x2apic_uv_x.c            | 14 +++---
 arch/x86/kernel/cpu/amd.c                     | 33 +++++++-------
 arch/x86/kernel/cpu/centaur.c                 | 26 +++++------
 arch/x86/kernel/cpu/common.c                  | 64 +++++++++++++--------------
 arch/x86/kernel/cpu/cyrix.c                   | 40 ++++++++---------
 arch/x86/kernel/cpu/hypervisor.c              |  2 +-
 arch/x86/kernel/cpu/intel.c                   | 30 ++++++-------
 arch/x86/kernel/cpu/intel_cacheinfo.c         | 55 +++++++++++------------
 arch/x86/kernel/cpu/mcheck/mce.c              | 23 +++++-----
 arch/x86/kernel/cpu/mcheck/mce_amd.c          | 14 +++---
 arch/x86/kernel/cpu/mcheck/therm_throt.c      |  9 ++--
 arch/x86/kernel/cpu/perf_event.c              |  2 +-
 arch/x86/kernel/cpu/perf_event_amd_ibs.c      |  2 +-
 arch/x86/kernel/cpu/perf_event_amd_uncore.c   | 31 +++++++------
 arch/x86/kernel/cpu/perf_event_intel_uncore.c | 20 ++++-----
 arch/x86/kernel/cpu/rdrand.c                  |  2 +-
 arch/x86/kernel/cpu/scattered.c               |  4 +-
 arch/x86/kernel/cpu/topology.c                |  2 +-
 arch/x86/kernel/cpu/transmeta.c               |  6 +--
 arch/x86/kernel/cpu/umc.c                     |  2 +-
 arch/x86/kernel/cpu/vmware.c                  |  2 +-
 arch/x86/kernel/cpuid.c                       |  7 ++-
 arch/x86/kernel/devicetree.c                  |  2 +-
 arch/x86/kernel/head_32.S                     |  1 -
 arch/x86/kernel/i387.c                        |  8 ++--
 arch/x86/kernel/irq_32.c                      |  2 +-
 arch/x86/kernel/kvm.c                         | 10 ++---
 arch/x86/kernel/kvmclock.c                    |  2 +-
 arch/x86/kernel/microcode_core.c              |  2 +-
 arch/x86/kernel/microcode_core_early.c        |  6 +--
 arch/x86/kernel/microcode_intel_early.c       | 26 +++++------
 arch/x86/kernel/mmconf-fam10h_64.c            | 12 ++---
 arch/x86/kernel/msr.c                         |  6 +--
 arch/x86/kernel/process.c                     |  2 +-
 arch/x86/kernel/setup.c                       |  2 +-
 arch/x86/kernel/smpboot.c                     | 28 ++++++------
 arch/x86/kernel/tboot.c                       |  6 +--
 arch/x86/kernel/tsc.c                         |  4 +-
 arch/x86/kernel/tsc_sync.c                    | 18 ++++----
 arch/x86/kernel/vsyscall_64.c                 |  6 +--
 arch/x86/kernel/x86_init.c                    |  4 +-
 arch/x86/kernel/xsave.c                       |  4 +-
 arch/x86/mm/mmio-mod.c                        |  4 +-
 arch/x86/mm/numa.c                            | 12 ++---
 arch/x86/mm/numa_emulation.c                  | 12 ++---
 arch/x86/mm/setup_nx.c                        |  4 +-
 arch/x86/pci/amd_bus.c                        |  8 ++--
 arch/x86/platform/ce4100/ce4100.c             |  2 +-
 arch/x86/platform/mrst/mrst.c                 |  4 +-
 arch/x86/xen/enlighten.c                      |  6 +--
 arch/x86/xen/setup.c                          |  6 +--
 arch/x86/xen/smp.c                            | 12 ++---
 arch/x86/xen/spinlock.c                       |  2 +-
 arch/x86/xen/xen-ops.h                        |  2 +-
 arch/xtensa/kernel/time.c                     |  2 +-
 block/blk-iopoll.c                            |  6 +--
 block/blk-softirq.c                           |  6 +--
 drivers/acpi/acpi_processor.c                 |  2 +-
 drivers/acpi/processor_core.c                 |  8 ++--
 drivers/acpi/processor_driver.c               |  8 ++--
 drivers/acpi/processor_idle.c                 |  6 +--
 drivers/base/cpu.c                            |  2 +-
 drivers/base/topology.c                       | 10 ++---
 drivers/clocksource/arm_arch_timer.c          |  8 ++--
 drivers/clocksource/exynos_mct.c              |  4 +-
 drivers/clocksource/metag_generic.c           |  6 +--
 drivers/clocksource/time-armada-370-xp.c      |  4 +-
 drivers/clocksource/timer-marco.c             |  4 +-
 drivers/cpufreq/cpufreq.c                     |  4 +-
 drivers/cpufreq/cpufreq_stats.c               |  4 +-
 drivers/cpufreq/dbx500-cpufreq.c              |  2 +-
 drivers/cpufreq/intel_pstate.c                |  4 +-
 drivers/cpufreq/longhaul.c                    |  6 +--
 drivers/cpufreq/longhaul.h                    | 26 +++++------
 drivers/cpufreq/longrun.c                     |  8 ++--
 drivers/cpufreq/omap-cpufreq.c                |  2 +-
 drivers/cpufreq/powernow-k7.c                 |  8 ++--
 drivers/cpufreq/powernow-k8.c                 |  6 +--
 drivers/hwmon/coretemp.c                      | 39 ++++++++--------
 drivers/hwmon/via-cputemp.c                   |  8 ++--
 drivers/irqchip/irq-gic.c                     |  8 ++--
 drivers/oprofile/timer_int.c                  |  4 +-
 drivers/xen/xen-acpi-cpuhotplug.c             |  2 +-
 include/asm-generic/vmlinux.lds.h             | 12 -----
 include/linux/cpu.h                           |  2 +-
 include/linux/init.h                          | 19 ++++----
 include/linux/perf_event.h                    |  2 +-
 init/calibrate.c                              | 13 +++---
 kernel/cpu.c                                  |  6 +--
 kernel/events/core.c                          |  4 +-
 kernel/fork.c                                 |  2 +-
 kernel/hrtimer.c                              |  6 +--
 kernel/printk.c                               |  2 +-
 kernel/profile.c                              |  2 +-
 kernel/rcutorture.c                           |  6 +--
 kernel/rcutree.c                              |  6 +--
 kernel/rcutree.h                              |  4 +-
 kernel/rcutree_plugin.h                       |  6 +--
 kernel/relay.c                                |  2 +-
 kernel/sched/core.c                           | 12 ++---
 kernel/sched/fair.c                           |  2 +-
 kernel/smp.c                                  |  2 +-
 kernel/smpboot.c                              |  2 +-
 kernel/softirq.c                              |  8 ++--
 kernel/time/tick-sched.c                      |  2 +-
 kernel/timer.c                                | 10 ++---
 kernel/workqueue.c                            |  4 +-
 lib/Kconfig.debug                             |  2 +-
 lib/earlycpio.c                               |  2 +-
 lib/percpu_counter.c                          |  2 +-
 mm/memcontrol.c                               |  2 +-
 mm/page-writeback.c                           |  4 +-
 mm/slab.c                                     | 10 ++---
 mm/slub.c                                     |  4 +-
 mm/vmstat.c                                   |  6 +--
 net/core/flow.c                               |  4 +-
 net/iucv/iucv.c                               |  2 +-
 scripts/mod/modpost.c                         | 52 ++++------------------
 307 files changed, 896 insertions(+), 1037 deletions(-)

-- 
1.8.1.2

From - Thu Nov 08 21:09:27 2018
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From: Paul Gortmaker <paul.gortmaker@windriver.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 05/32] parisc: delete __cpuinit usage from all users
Date: Mon, 24 Jun 2013 15:30:10 -0400
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The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications.  For example, the fix in
commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.

After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out.  Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.

This removes all the parisc uses of the __cpuinit macros.

[1] https://lkml.org/lkml/2013/5/20/589

Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---

[This commit is part of the __cpuinit removal work.  If you don't see
 any problems with it, then you don't have to do anything ; it will be
 submitted with all the rest of the __cpuinit removal work.  On the
 other hand, if you want to carry this patch in with your other pending
 changes so as to handle conflicts with other pending work yourself, then
 that is fine too, as the commits can largely be treated independently.
 For more information, please see: https://lkml.org/lkml/2013/6/20/513 ]

 arch/parisc/kernel/firmware.c  | 14 ++++++++------
 arch/parisc/kernel/hardware.c  |  2 +-
 arch/parisc/kernel/processor.c |  6 +++---
 arch/parisc/kernel/smp.c       |  8 ++++----
 4 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index f65fa48..2239590 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -150,7 +150,7 @@ static void convert_to_wide(unsigned long *addr)
 }
 
 #ifdef CONFIG_64BIT
-void __cpuinit set_firmware_width_unlocked(void)
+void set_firmware_width_unlocked(void)
 {
 	int ret;
 
@@ -167,7 +167,7 @@ void __cpuinit set_firmware_width_unlocked(void)
  * This function must be called before any pdc_* function that uses the
  * convert_to_wide function.
  */
-void __cpuinit set_firmware_width(void)
+void set_firmware_width(void)
 {
 	unsigned long flags;
 	spin_lock_irqsave(&pdc_lock, flags);
@@ -175,11 +175,13 @@ void __cpuinit set_firmware_width(void)
 	spin_unlock_irqrestore(&pdc_lock, flags);
 }
 #else
-void __cpuinit set_firmware_width_unlocked(void) {
+void set_firmware_width_unlocked(void)
+{
 	return;
 }
 
-void __cpuinit set_firmware_width(void) {
+void set_firmware_width(void)
+{
 	return;
 }
 #endif /*CONFIG_64BIT*/
@@ -301,7 +303,7 @@ int pdc_chassis_warn(unsigned long *warn)
 	return retval;
 }
 
-int __cpuinit pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
+int pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
 {
 	int ret;
 
@@ -322,7 +324,7 @@ int __cpuinit pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
  * This PDC call returns the presence and status of all the coprocessors
  * attached to the processor.
  */
-int __cpuinit pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info)
+int pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info)
 {
 	int ret;
 	unsigned long flags;
diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index 8722756..06cb399 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -1367,7 +1367,7 @@ const char *parisc_hardware_description(struct parisc_device_id *id)
 
 
 /* Interpret hversion (ret[0]) from PDC_MODEL(4)/PDC_MODEL_INFO(0) */
-enum cpu_type __cpuinit
+enum cpu_type
 parisc_get_cpu_type(unsigned long hversion)
 {
 	struct hp_cpu_type_mask *ptr;
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index c8fb61e..a128a94 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -73,7 +73,7 @@ extern int update_cr16_clocksource(void);	/* from time.c */
  *
  * FIXME: doesn't do much yet...
  */
-static void __cpuinit
+static void
 init_percpu_prof(unsigned long cpunum)
 {
 	struct cpuinfo_parisc *p;
@@ -92,7 +92,7 @@ init_percpu_prof(unsigned long cpunum)
  * (return 1).  If so, initialize the chip and tell other partners in crime 
  * they have work to do.
  */
-static int __cpuinit processor_probe(struct parisc_device *dev)
+static int processor_probe(struct parisc_device *dev)
 {
 	unsigned long txn_addr;
 	unsigned long cpuid;
@@ -299,7 +299,7 @@ void __init collect_boot_cpu_data(void)
  *
  * o Enable CPU profiling hooks.
  */
-int __cpuinit init_per_cpu(int cpunum)
+int init_per_cpu(int cpunum)
 {
 	int ret;
 	struct pdc_coproc_cfg coproc_cfg;
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index e3614fb..8a252f2 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -62,9 +62,9 @@ static int smp_debug_lvl = 0;
 volatile struct task_struct *smp_init_current_idle_task;
 
 /* track which CPU is booting */
-static volatile int cpu_now_booting __cpuinitdata;
+static volatile int cpu_now_booting;
 
-static int parisc_max_cpus __cpuinitdata = 1;
+static int parisc_max_cpus = 1;
 
 static DEFINE_PER_CPU(spinlock_t, ipi_lock);
 
@@ -328,7 +328,7 @@ void __init smp_callin(void)
 /*
  * Bring one cpu online.
  */
-int __cpuinit smp_boot_one_cpu(int cpuid, struct task_struct *idle)
+int smp_boot_one_cpu(int cpuid, struct task_struct *idle)
 {
 	const struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpuid);
 	long timeout;
@@ -424,7 +424,7 @@ void smp_cpus_done(unsigned int cpu_max)
 }
 
 
-int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle)
+int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 {
 	if (cpu != 0 && cpu < parisc_max_cpus)
 		smp_boot_one_cpu(cpu, tidle);
-- 
1.8.1.2


From - Thu Nov 08 21:09:27 2018
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From: Paul Gortmaker <paul.gortmaker-CWA4WttNNZF54TAoqtyWWQ@public.gmane.org>
Newsgroups: gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.kernel.cpufreq,gmane.linux.drivers.sensors,gmane.linux.acpi.devel,gmane.linux.network,gmane.linux.ports.sparc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.arm.kernel
Subject: [PATCH-next 00/32] Delete support for __cpuinit
Date: Mon, 24 Jun 2013 16:00:21 -0400
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[Resending with only lists on Cc: -- previous mail header on the 00/32
 was too long; failed to get passed vger's crap filters.]

On 13-06-24 03:30 PM, Paul Gortmaker wrote:
> This is the whole patch queue for removal of __cpuinit support
> against the latest linux-next tree (Jun24th).  Some of you may
> have already seen chunks of it, or already read the logistics
> of what is being done (and why) here:
> 
>   https://lkml.org/lkml/2013/6/20/513
> 
> I won't repeat all that here again, other than to say this send
> is to ensure arch/subsystem maintainers get a 2nd chance to know
> what is going on and to look at what is being proposed for their
> area of code.  That, and to ensure one complete continuous copy
> of it gets mailed out.  You can also see the patch queue here:
> 
>   http://git.kernel.org/cgit/linux/kernel/git/paulg/cpuinit-delete.git
> 
> If you've noticed that a chunk for MIPS isn't present here, that
> is because it has already been queued in the linux-mips for-next
> branch.
> 
> Thanks,
> Paul.
> 
> ---
> Cc: Len Brown <lenb-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Cc: "Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org>
> Cc: Richard Henderson <rth-hL46jP5Bxq7R7s880joybQ@public.gmane.org>
> Cc: Ivan Kokshaysky <ink-biIs/Y0ymYJMZLIVYojuPNP0rXTJTi09@public.gmane.org>
> Cc: Matt Turner <mattst88-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: Vineet Gupta <vgupta-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
> Cc: Russell King <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>
> Cc: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
> Cc: Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>
> Cc: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
> Cc: Mike Frysinger <vapier-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org>
> Cc: Bob Liu <lliubbo-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: Sonic Zhang <sonic.zhang-OyLXuOCK7orQT0dZR+AlfA@public.gmane.org>
> Cc: Jens Axboe <axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>
> Cc: John Stultz <john.stultz-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> Cc: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
> Cc: "Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org>
> Cc: Viresh Kumar <viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> Cc: Mikael Starvik <starvik-VrBV9hrLPhE@public.gmane.org>
> Cc: Jesper Nilsson <jesper.nilsson-VrBV9hrLPhE@public.gmane.org>
> Cc: Greg Kroah-Hartman <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
> Cc: David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Cc: Richard Kuo <rkuo-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
> Cc: Fenghua Yu <fenghua.yu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Cc: Tony Luck <tony.luck-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Cc: Fenghua Yu <fenghua.yu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Cc: Hirokazu Takata <takata-TMSiXQfHlQjsTix1lMzHGQ@public.gmane.org>
> Cc: James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
> Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
> Cc: Rusty Russell <rusty-8n+1lVoiYb80n/F98K4Iww@public.gmane.org>
> Cc: "David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
> Cc: Jonas Bonn <jonas-A9uVI2HLR7kOP4wsBPIw7w@public.gmane.org>
> Cc: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
> Cc: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
> Cc: Paul Mackerras <paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>
> Cc: Josh Boyer <jwboyer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: Matt Porter <mporter-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
> Cc: Kumar Gala <galak-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
> Cc: "Paul E. McKenney" <paulmck-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
> Cc: Josh Triplett <josh-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org>
> Cc: Dipankar Sarma <dipankar-xthvdsQ13ZrQT0dZR+AlfA@public.gmane.org>
> Cc: Martin Schwidefsky <schwidefsky-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
> Cc: Heiko Carstens <heiko.carstens-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
> Cc: Chen Liqin <liqin.chen-+XGAvkf1AAHby3iVrkZq2A@public.gmane.org>
> Cc: Lennox Wu <lennox.wu-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: Paul Mundt <lethal-M7jkjyW5wf5g9hUCZPvPmw@public.gmane.org>
> Cc: "David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
> Cc: Chris Metcalf <cmetcalf-kv+TWInifGbQT0dZR+AlfA@public.gmane.org>
> Cc: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
> Cc: Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Cc: "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
> Cc: Chris Zankel <chris-YvXeqwSYzG2sTnJN9+BGXg@public.gmane.org>
> Cc: Max Filippov <jcmvbkbc-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: linux-acpi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
> Cc: uclinux-dist-devel-ZG0+EudsQA8dtHy/vicBwGD2FQJk+8+b@public.gmane.org
> Cc: cpufreq-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-cris-kernel-VrBV9hrLPhE@public.gmane.org
> Cc: linux-hexagon-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: lm-sensors-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org
> Cc: linux-ia64-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-m32r-rQhvJZKUsGBRYuoOT4C5/9i2O/JbrIOy@public.gmane.org
> Cc: linux-m32r-ja-rQhvJZKUsGBRYuoOT4C5/9i2O/JbrIOy@public.gmane.org
> Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-ZwoEplunGu2h2975yA52AaxOck334EZe@public.gmane.org
> Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
> Cc: linux390-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org
> Cc: linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: sparclinux-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
> Cc: linux-xtensa-PjhNF2WwrV/0Sa2dR60CXw@public.gmane.org
> 
> Paul Gortmaker (32):
>   init.h: remove __cpuinit sections from the kernel
>   modpost: remove all traces of cpuinit/cpuexit sections
>   alpha: delete __cpuinit usage from all users
>   powerpc: delete __cpuinit usage from all users
>   parisc: delete __cpuinit usage from all users
>   ia64: delete __cpuinit usage from all ia64 users
>   arm: delete __cpuinit/__CPUINIT usage from all ARM users
>   sparc: delete __cpuinit/__CPUINIT usage from all users
>   arm64: delete __cpuinit usage from all users
>   arc: delete __cpuinit usage from all arc files
>   blackfin: delete __cpuinit usage from all blackfin files
>   s390: delete __cpuinit usage from all s390 files
>   sh: delete __cpuinit usage from all sh files
>   tile: delete __cpuinit usage from all tile files
>   metag: delete __cpuinit usage from all metag files
>   cris: delete __cpuinit usage from all cris files
>   frv: delete __cpuinit usage from all frv files
>   hexagon: delete __cpuinit usage from all hexagon files
>   m32r: delete __cpuinit usage from all m32r files
>   openrisc: delete __cpuinit usage from all openrisc files
>   xtensa: delete __cpuinit usage from all xtensa files
>   score: delete __cpuinit usage from all score files
>   x86: delete __cpuinit usage from all x86 files
>   clocksource+irqchip: delete __cpuinit usage from all related files
>   cpufreq: delete __cpuinit usage from all cpufreq files
>   hwmon: delete __cpuinit usage from all hwmon files
>   acpi: delete __cpuinit usage from all acpi files
>   net: delete __cpuinit usage from all net files
>   rcu: delete __cpuinit usage from all rcu files
>   kernel: delete __cpuinit usage from all core kernel files
>   drivers: delete __cpuinit usage from all remaining drivers files
>   block: delete __cpuinit usage from all block files
> 
>  Documentation/cpu-hotplug.txt                 |  6 +--
>  arch/alpha/kernel/smp.c                       | 10 ++---
>  arch/alpha/kernel/traps.c                     |  4 +-
>  arch/arc/include/asm/irq.h                    |  2 +-
>  arch/arc/kernel/irq.c                         |  2 +-
>  arch/arc/kernel/setup.c                       | 10 ++---
>  arch/arc/kernel/smp.c                         |  4 +-
>  arch/arc/kernel/time.c                        |  6 +--
>  arch/arc/mm/cache_arc700.c                    |  4 +-
>  arch/arc/mm/tlb.c                             |  4 +-
>  arch/arm/common/mcpm_platsmp.c                |  4 +-
>  arch/arm/include/asm/arch_timer.h             |  2 +-
>  arch/arm/kernel/head-common.S                 |  1 -
>  arch/arm/kernel/head.S                        |  1 -
>  arch/arm/kernel/hw_breakpoint.c               |  4 +-
>  arch/arm/kernel/perf_event_cpu.c              |  6 +--
>  arch/arm/kernel/psci_smp.c                    |  3 +-
>  arch/arm/kernel/smp.c                         | 18 ++++----
>  arch/arm/kernel/smp_twd.c                     |  6 +--
>  arch/arm/lib/delay.c                          |  2 +-
>  arch/arm/mach-exynos/headsmp.S                |  2 -
>  arch/arm/mach-exynos/platsmp.c                |  4 +-
>  arch/arm/mach-highbank/platsmp.c              |  2 +-
>  arch/arm/mach-imx/platsmp.c                   |  2 +-
>  arch/arm/mach-msm/headsmp.S                   |  2 -
>  arch/arm/mach-msm/platsmp.c                   |  6 +--
>  arch/arm/mach-msm/timer.c                     |  4 +-
>  arch/arm/mach-mvebu/coherency.c               |  2 +-
>  arch/arm/mach-mvebu/headsmp.S                 |  2 -
>  arch/arm/mach-mvebu/platsmp.c                 |  5 +--
>  arch/arm/mach-omap2/omap-headsmp.S            |  2 -
>  arch/arm/mach-omap2/omap-mpuss-lowpower.c     |  2 +-
>  arch/arm/mach-omap2/omap-smp.c                |  4 +-
>  arch/arm/mach-omap2/omap-wakeupgen.c          |  4 +-
>  arch/arm/mach-prima2/headsmp.S                |  2 -
>  arch/arm/mach-prima2/platsmp.c                |  4 +-
>  arch/arm/mach-shmobile/headsmp-scu.S          |  1 -
>  arch/arm/mach-shmobile/headsmp.S              |  2 -
>  arch/arm/mach-shmobile/smp-emev2.c            |  2 +-
>  arch/arm/mach-shmobile/smp-r8a7779.c          |  2 +-
>  arch/arm/mach-shmobile/smp-sh73a0.c           |  2 +-
>  arch/arm/mach-socfpga/headsmp.S               |  1 -
>  arch/arm/mach-socfpga/platsmp.c               |  2 +-
>  arch/arm/mach-spear/generic.h                 |  2 +-
>  arch/arm/mach-spear/platsmp.c                 |  4 +-
>  arch/arm/mach-tegra/platsmp.c                 |  4 +-
>  arch/arm/mach-tegra/pm.c                      |  2 +-
>  arch/arm/mach-ux500/platsmp.c                 |  4 +-
>  arch/arm/mach-zynq/common.h                   |  2 +-
>  arch/arm/mach-zynq/headsmp.S                  |  2 -
>  arch/arm/mach-zynq/platsmp.c                  |  6 +--
>  arch/arm/mm/proc-arm1020.S                    |  2 -
>  arch/arm/mm/proc-arm1020e.S                   |  2 -
>  arch/arm/mm/proc-arm1022.S                    |  2 -
>  arch/arm/mm/proc-arm1026.S                    |  3 --
>  arch/arm/mm/proc-arm720.S                     |  2 -
>  arch/arm/mm/proc-arm740.S                     |  2 -
>  arch/arm/mm/proc-arm7tdmi.S                   |  2 -
>  arch/arm/mm/proc-arm920.S                     |  2 -
>  arch/arm/mm/proc-arm922.S                     |  2 -
>  arch/arm/mm/proc-arm925.S                     |  2 -
>  arch/arm/mm/proc-arm926.S                     |  2 -
>  arch/arm/mm/proc-arm940.S                     |  2 -
>  arch/arm/mm/proc-arm946.S                     |  2 -
>  arch/arm/mm/proc-arm9tdmi.S                   |  2 -
>  arch/arm/mm/proc-fa526.S                      |  2 -
>  arch/arm/mm/proc-feroceon.S                   |  2 -
>  arch/arm/mm/proc-mohawk.S                     |  2 -
>  arch/arm/mm/proc-sa110.S                      |  2 -
>  arch/arm/mm/proc-sa1100.S                     |  2 -
>  arch/arm/mm/proc-v6.S                         |  2 -
>  arch/arm/mm/proc-v7-2level.S                  |  4 --
>  arch/arm/mm/proc-v7-3level.S                  |  4 --
>  arch/arm/mm/proc-v7.S                         |  2 -
>  arch/arm/mm/proc-xsc3.S                       |  2 -
>  arch/arm/mm/proc-xscale.S                     |  2 -
>  arch/arm/plat-versatile/platsmp.c             |  6 +--
>  arch/arm64/include/asm/arch_timer.h           |  2 +-
>  arch/arm64/kernel/debug-monitors.c            |  6 +--
>  arch/arm64/kernel/hw_breakpoint.c             |  4 +-
>  arch/arm64/kernel/smp.c                       |  8 ++--
>  arch/blackfin/kernel/perf_event.c             |  2 +-
>  arch/blackfin/kernel/setup.c                  |  4 +-
>  arch/blackfin/mach-bf561/smp.c                |  6 +--
>  arch/blackfin/mach-common/cache-c.c           |  4 +-
>  arch/blackfin/mach-common/ints-priority.c     |  2 +-
>  arch/blackfin/mach-common/smp.c               |  8 ++--
>  arch/cris/arch-v32/kernel/smp.c               |  2 +-
>  arch/frv/kernel/setup.c                       |  2 +-
>  arch/hexagon/kernel/setup.c                   |  2 +-
>  arch/hexagon/kernel/smp.c                     |  4 +-
>  arch/ia64/kernel/acpi.c                       |  4 +-
>  arch/ia64/kernel/err_inject.c                 |  8 ++--
>  arch/ia64/kernel/mca.c                        | 12 ++---
>  arch/ia64/kernel/numa.c                       |  4 +-
>  arch/ia64/kernel/palinfo.c                    |  4 +-
>  arch/ia64/kernel/salinfo.c                    |  4 +-
>  arch/ia64/kernel/setup.c                      | 10 ++---
>  arch/ia64/kernel/smpboot.c                    |  8 ++--
>  arch/ia64/kernel/topology.c                   | 18 ++++----
>  arch/ia64/mm/contig.c                         |  3 +-
>  arch/ia64/mm/discontig.c                      |  2 +-
>  arch/ia64/mm/numa.c                           |  2 +-
>  arch/ia64/sn/kernel/setup.c                   |  8 ++--
>  arch/ia64/xen/hypervisor.c                    |  2 +-
>  arch/m32r/kernel/smpboot.c                    |  2 +-
>  arch/metag/kernel/perf/perf_event.c           |  6 +--
>  arch/metag/kernel/smp.c                       | 16 +++----
>  arch/metag/kernel/traps.c                     |  2 +-
>  arch/openrisc/kernel/setup.c                  |  2 +-
>  arch/parisc/kernel/firmware.c                 | 14 +++---
>  arch/parisc/kernel/hardware.c                 |  2 +-
>  arch/parisc/kernel/processor.c                |  6 +--
>  arch/parisc/kernel/smp.c                      |  8 ++--
>  arch/powerpc/include/asm/rtas.h               |  4 +-
>  arch/powerpc/include/asm/vdso.h               |  2 +-
>  arch/powerpc/kernel/cacheinfo.c               | 36 ++++++++-------
>  arch/powerpc/kernel/rtas.c                    |  4 +-
>  arch/powerpc/kernel/smp.c                     |  4 +-
>  arch/powerpc/kernel/sysfs.c                   |  6 +--
>  arch/powerpc/kernel/time.c                    |  1 -
>  arch/powerpc/kernel/vdso.c                    |  2 +-
>  arch/powerpc/mm/44x_mmu.c                     |  6 +--
>  arch/powerpc/mm/hash_utils_64.c               |  2 +-
>  arch/powerpc/mm/mmu_context_nohash.c          |  6 +--
>  arch/powerpc/mm/numa.c                        |  7 ++-
>  arch/powerpc/mm/tlb_nohash.c                  |  2 +-
>  arch/powerpc/perf/core-book3s.c               |  4 +-
>  arch/powerpc/platforms/44x/currituck.c        |  4 +-
>  arch/powerpc/platforms/44x/iss4xx.c           |  4 +-
>  arch/powerpc/platforms/85xx/smp.c             |  6 +--
>  arch/powerpc/platforms/powermac/smp.c         |  2 +-
>  arch/powerpc/platforms/powernv/smp.c          |  2 +-
>  arch/s390/kernel/cache.c                      | 15 +++----
>  arch/s390/kernel/perf_cpum_cf.c               |  4 +-
>  arch/s390/kernel/processor.c                  |  2 +-
>  arch/s390/kernel/smp.c                        | 17 ++++---
>  arch/s390/kernel/sysinfo.c                    |  2 +-
>  arch/s390/kernel/vtime.c                      |  6 +--
>  arch/s390/mm/fault.c                          |  4 +-
>  arch/score/mm/tlb-score.c                     |  2 +-
>  arch/sh/kernel/cpu/init.c                     | 18 ++++----
>  arch/sh/kernel/cpu/sh2/probe.c                |  2 +-
>  arch/sh/kernel/cpu/sh2a/probe.c               |  2 +-
>  arch/sh/kernel/cpu/sh3/probe.c                |  2 +-
>  arch/sh/kernel/cpu/sh4/probe.c                |  2 +-
>  arch/sh/kernel/cpu/sh4a/smp-shx3.c            |  6 +--
>  arch/sh/kernel/cpu/sh5/probe.c                |  2 +-
>  arch/sh/kernel/perf_event.c                   |  4 +-
>  arch/sh/kernel/process.c                      |  2 +-
>  arch/sh/kernel/setup.c                        |  2 +-
>  arch/sh/kernel/smp.c                          |  8 ++--
>  arch/sh/kernel/traps_32.c                     |  2 +-
>  arch/sh/kernel/traps_64.c                     |  2 +-
>  arch/sh/mm/tlb-sh5.c                          |  2 +-
>  arch/sparc/kernel/ds.c                        | 11 ++---
>  arch/sparc/kernel/entry.h                     |  2 +-
>  arch/sparc/kernel/hvtramp.S                   |  1 -
>  arch/sparc/kernel/irq_64.c                    |  5 ++-
>  arch/sparc/kernel/leon_smp.c                  | 10 ++---
>  arch/sparc/kernel/mdesc.c                     | 34 +++++++-------
>  arch/sparc/kernel/smp_32.c                    | 20 ++++-----
>  arch/sparc/kernel/smp_64.c                    |  9 ++--
>  arch/sparc/kernel/sun4d_smp.c                 |  6 +--
>  arch/sparc/kernel/sun4m_smp.c                 |  6 +--
>  arch/sparc/kernel/sysfs.c                     |  4 +-
>  arch/sparc/kernel/trampoline_32.S             |  3 --
>  arch/sparc/kernel/trampoline_64.S             |  2 -
>  arch/sparc/mm/init_64.c                       |  2 +-
>  arch/sparc/mm/srmmu.c                         | 12 ++---
>  arch/tile/kernel/irq.c                        |  2 +-
>  arch/tile/kernel/messaging.c                  |  2 +-
>  arch/tile/kernel/setup.c                      | 12 ++---
>  arch/tile/kernel/smpboot.c                    |  8 ++--
>  arch/tile/kernel/time.c                       |  2 +-
>  arch/x86/include/asm/cpu.h                    |  2 +-
>  arch/x86/include/asm/microcode.h              |  4 +-
>  arch/x86/include/asm/microcode_intel.h        |  4 +-
>  arch/x86/include/asm/mmconfig.h               |  4 +-
>  arch/x86/include/asm/mpspec.h                 |  2 +-
>  arch/x86/include/asm/numa.h                   |  6 +--
>  arch/x86/include/asm/prom.h                   |  2 +-
>  arch/x86/include/asm/smp.h                    |  2 +-
>  arch/x86/kernel/acpi/boot.c                   |  6 +--
>  arch/x86/kernel/apic/apic.c                   | 30 ++++++-------
>  arch/x86/kernel/apic/apic_numachip.c          |  2 +-
>  arch/x86/kernel/apic/es7000_32.c              |  2 +-
>  arch/x86/kernel/apic/numaq_32.c               |  2 +-
>  arch/x86/kernel/apic/x2apic_cluster.c         |  2 +-
>  arch/x86/kernel/apic/x2apic_uv_x.c            | 14 +++---
>  arch/x86/kernel/cpu/amd.c                     | 33 +++++++-------
>  arch/x86/kernel/cpu/centaur.c                 | 26 +++++------
>  arch/x86/kernel/cpu/common.c                  | 64 +++++++++++++--------------
>  arch/x86/kernel/cpu/cyrix.c                   | 40 ++++++++---------
>  arch/x86/kernel/cpu/hypervisor.c              |  2 +-
>  arch/x86/kernel/cpu/intel.c                   | 30 ++++++-------
>  arch/x86/kernel/cpu/intel_cacheinfo.c         | 55 +++++++++++------------
>  arch/x86/kernel/cpu/mcheck/mce.c              | 23 +++++-----
>  arch/x86/kernel/cpu/mcheck/mce_amd.c          | 14 +++---
>  arch/x86/kernel/cpu/mcheck/therm_throt.c      |  9 ++--
>  arch/x86/kernel/cpu/perf_event.c              |  2 +-
>  arch/x86/kernel/cpu/perf_event_amd_ibs.c      |  2 +-
>  arch/x86/kernel/cpu/perf_event_amd_uncore.c   | 31 +++++++------
>  arch/x86/kernel/cpu/perf_event_intel_uncore.c | 20 ++++-----
>  arch/x86/kernel/cpu/rdrand.c                  |  2 +-
>  arch/x86/kernel/cpu/scattered.c               |  4 +-
>  arch/x86/kernel/cpu/topology.c                |  2 +-
>  arch/x86/kernel/cpu/transmeta.c               |  6 +--
>  arch/x86/kernel/cpu/umc.c                     |  2 +-
>  arch/x86/kernel/cpu/vmware.c                  |  2 +-
>  arch/x86/kernel/cpuid.c                       |  7 ++-
>  arch/x86/kernel/devicetree.c                  |  2 +-
>  arch/x86/kernel/head_32.S                     |  1 -
>  arch/x86/kernel/i387.c                        |  8 ++--
>  arch/x86/kernel/irq_32.c                      |  2 +-
>  arch/x86/kernel/kvm.c                         | 10 ++---
>  arch/x86/kernel/kvmclock.c                    |  2 +-
>  arch/x86/kernel/microcode_core.c              |  2 +-
>  arch/x86/kernel/microcode_core_early.c        |  6 +--
>  arch/x86/kernel/microcode_intel_early.c       | 26 +++++------
>  arch/x86/kernel/mmconf-fam10h_64.c            | 12 ++---
>  arch/x86/kernel/msr.c                         |  6 +--
>  arch/x86/kernel/process.c                     |  2 +-
>  arch/x86/kernel/setup.c                       |  2 +-
>  arch/x86/kernel/smpboot.c                     | 28 ++++++------
>  arch/x86/kernel/tboot.c                       |  6 +--
>  arch/x86/kernel/tsc.c                         |  4 +-
>  arch/x86/kernel/tsc_sync.c                    | 18 ++++----
>  arch/x86/kernel/vsyscall_64.c                 |  6 +--
>  arch/x86/kernel/x86_init.c                    |  4 +-
>  arch/x86/kernel/xsave.c                       |  4 +-
>  arch/x86/mm/mmio-mod.c                        |  4 +-
>  arch/x86/mm/numa.c                            | 12 ++---
>  arch/x86/mm/numa_emulation.c                  | 12 ++---
>  arch/x86/mm/setup_nx.c                        |  4 +-
>  arch/x86/pci/amd_bus.c                        |  8 ++--
>  arch/x86/platform/ce4100/ce4100.c             |  2 +-
>  arch/x86/platform/mrst/mrst.c                 |  4 +-
>  arch/x86/xen/enlighten.c                      |  6 +--
>  arch/x86/xen/setup.c                          |  6 +--
>  arch/x86/xen/smp.c                            | 12 ++---
>  arch/x86/xen/spinlock.c                       |  2 +-
>  arch/x86/xen/xen-ops.h                        |  2 +-
>  arch/xtensa/kernel/time.c                     |  2 +-
>  block/blk-iopoll.c                            |  6 +--
>  block/blk-softirq.c                           |  6 +--
>  drivers/acpi/acpi_processor.c                 |  2 +-
>  drivers/acpi/processor_core.c                 |  8 ++--
>  drivers/acpi/processor_driver.c               |  8 ++--
>  drivers/acpi/processor_idle.c                 |  6 +--
>  drivers/base/cpu.c                            |  2 +-
>  drivers/base/topology.c                       | 10 ++---
>  drivers/clocksource/arm_arch_timer.c          |  8 ++--
>  drivers/clocksource/exynos_mct.c              |  4 +-
>  drivers/clocksource/metag_generic.c           |  6 +--
>  drivers/clocksource/time-armada-370-xp.c      |  4 +-
>  drivers/clocksource/timer-marco.c             |  4 +-
>  drivers/cpufreq/cpufreq.c                     |  4 +-
>  drivers/cpufreq/cpufreq_stats.c               |  4 +-
>  drivers/cpufreq/dbx500-cpufreq.c              |  2 +-
>  drivers/cpufreq/intel_pstate.c                |  4 +-
>  drivers/cpufreq/longhaul.c                    |  6 +--
>  drivers/cpufreq/longhaul.h                    | 26 +++++------
>  drivers/cpufreq/longrun.c                     |  8 ++--
>  drivers/cpufreq/omap-cpufreq.c                |  2 +-
>  drivers/cpufreq/powernow-k7.c                 |  8 ++--
>  drivers/cpufreq/powernow-k8.c                 |  6 +--
>  drivers/hwmon/coretemp.c                      | 39 ++++++++--------
>  drivers/hwmon/via-cputemp.c                   |  8 ++--
>  drivers/irqchip/irq-gic.c                     |  8 ++--
>  drivers/oprofile/timer_int.c                  |  4 +-
>  drivers/xen/xen-acpi-cpuhotplug.c             |  2 +-
>  include/asm-generic/vmlinux.lds.h             | 12 -----
>  include/linux/cpu.h                           |  2 +-
>  include/linux/init.h                          | 19 ++++----
>  include/linux/perf_event.h                    |  2 +-
>  init/calibrate.c                              | 13 +++---
>  kernel/cpu.c                                  |  6 +--
>  kernel/events/core.c                          |  4 +-
>  kernel/fork.c                                 |  2 +-
>  kernel/hrtimer.c                              |  6 +--
>  kernel/printk.c                               |  2 +-
>  kernel/profile.c                              |  2 +-
>  kernel/rcutorture.c                           |  6 +--
>  kernel/rcutree.c                              |  6 +--
>  kernel/rcutree.h                              |  4 +-
>  kernel/rcutree_plugin.h                       |  6 +--
>  kernel/relay.c                                |  2 +-
>  kernel/sched/core.c                           | 12 ++---
>  kernel/sched/fair.c                           |  2 +-
>  kernel/smp.c                                  |  2 +-
>  kernel/smpboot.c                              |  2 +-
>  kernel/softirq.c                              |  8 ++--
>  kernel/time/tick-sched.c                      |  2 +-
>  kernel/timer.c                                | 10 ++---
>  kernel/workqueue.c                            |  4 +-
>  lib/Kconfig.debug                             |  2 +-
>  lib/earlycpio.c                               |  2 +-
>  lib/percpu_counter.c                          |  2 +-
>  mm/memcontrol.c                               |  2 +-
>  mm/page-writeback.c                           |  4 +-
>  mm/slab.c                                     | 10 ++---
>  mm/slub.c                                     |  4 +-
>  mm/vmstat.c                                   |  6 +--
>  net/core/flow.c                               |  4 +-
>  net/iucv/iucv.c                               |  2 +-
>  scripts/mod/modpost.c                         | 52 ++++------------------
>  307 files changed, 896 insertions(+), 1037 deletions(-)
> 

From - Thu Nov 08 21:09:27 2018
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Subject: [PATCH] parisc: Ensure volatile space register %sr1 is not clobbered
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I still see the occasional random segv on rp3440.  Looking at one of  
these (a code 15), it appeared the problem must
be with the cache handling of anonymous pages.  Reviewing this, I  
noticed that the space register %sr1 might be
being clobbered when we flush an anonymous page.

Register %sr1 is used for TLB purges in a couple of places.  These  
purges are needed on PA8800 and PA8900
processors to ensure cache consistency of flushed cache lines.

The solution here is simply to move the %sr1 load into the TLB lock  
region needed to ensure that one purge executes
at a time on SMP systems.  This was already the case for one use.   
After a few days of operation, I haven't had a random
segv on my rp3440.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---


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diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index 5273da9..9cdbc74 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -68,8 +68,8 @@ static inline void flush_tlb_page(struct vm_area_struct *vma,
 	/* For one page, it's not worth testing the split_tlb variable */
 
 	mb();
-	mtsp(vma->vm_mm->context,1);
 	purge_tlb_start(flags);
+	mtsp(vma->vm_mm->context,1);
 	pdtlb(addr);
 	pitlb(addr);
 	purge_tlb_end(flags);
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 65fb4cb..2e65aa5 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -440,8 +440,8 @@ void __flush_tlb_range(unsigned long sid, unsigned long start,
 	else {
 		unsigned long flags;
 
-		mtsp(sid, 1);
 		purge_tlb_start(flags);
+		mtsp(sid, 1);
 		if (split_tlb) {
 			while (npages--) {
 				pdtlb(start);

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--
John David Anglin	dave.anglin@bell.net


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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: document the shadow registers
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/Documentation/parisc/registers b/Documentation/parisc/registers
index dd3cadd..10c7d17 100644
--- a/Documentation/parisc/registers
+++ b/Documentation/parisc/registers
@@ -78,6 +78,14 @@ Shadow Registers		used by interruption handler code
 TOC enable bit			1
 
 =========================================================================
+
+The PA-RISC architecture defines 7 registers as "shadow registers".
+Those are used in RETURN FROM INTERRUPTION AND RESTORE instruction to reduce
+the state save and restore time by eliminating the need for general register
+(GR) saves and restores in interruption handlers.
+Shadow registers are the GRs 1, 8, 9, 16, 17, 24, and 25.
+
+=========================================================================
 Register usage notes, originally from John Marvin, with some additional
 notes from Randolph Chung.
 
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The latest palo (PA-RISC Boot Loader) allows loading of a
gzip-compressed vmlinuz kernel. So let's switch to build a vmlinuz file
when we build a palo boot image.

PALO version 1.9 (or higher) is required for this which is available in
the dev_gzip branch of
git://git.kernel.org/pub/scm/linux/kernel/git/deller/palo.git 

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 6507dab..c88c147 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -3,6 +3,7 @@ config PARISC
 	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 	select HAVE_IDE
 	select HAVE_OPROFILE
+	select HAVE_KERNEL_GZIP
 	select HAVE_FUNCTION_TRACER if 64BIT
 	select HAVE_FUNCTION_GRAPH_TRACER if 64BIT
 	select HAVE_FUNCTION_TRACE_MCOUNT_TEST if 64BIT
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 96ec398..6666133 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -17,6 +17,8 @@
 # Mike Shaver, Helge Deller and Martin K. Petersen
 #
 
+KBUILD_IMAGE := $(objtree)/vmlinuz
+
 KBUILD_DEFCONFIG := default_defconfig
 
 NM		= sh $(srctree)/arch/parisc/nm
@@ -92,7 +94,7 @@ PALOCONF := $(shell if [ -f $(src)/palo.conf ]; then echo $(src)/palo.conf; \
 	else echo $(obj)/palo.conf; \
 	fi)
 
-palo: vmlinux
+palo: vmlinuz
 	@if test ! -x "$(PALO)"; then \
 		echo 'ERROR: Please install palo first (apt-get install palo)';\
 		echo 'or build it from source and install it somewhere in your $$PATH';\
@@ -107,10 +109,10 @@ palo: vmlinux
 	fi
 	$(PALO) -f $(PALOCONF)
 
-# Shorthands for known targets not supported by parisc, use vmlinux as default
-Image zImage bzImage: vmlinux
+vmlinuz: vmlinux
+	@gzip -cf -9 $< > $@
 
-install: vmlinux
+install: vmlinuz
 	sh $(src)/arch/parisc/install.sh \
 			$(KERNELRELEASE) $< System.map "$(INSTALL_PATH)"
 
@@ -119,6 +121,7 @@ MRPROPER_FILES	+= palo.conf
 
 define archhelp
 	@echo  '* vmlinux	- Uncompressed kernel image (./vmlinux)'
+	@echo  '  vmlinuz	- Compressed kernel image (./vmlinuz)'
 	@echo  '  palo		- Bootable image (./lifimage)'
 	@echo  '  install	- Install kernel using'
 	@echo  '		  (your) ~/bin/$(INSTALLKERNEL) or'
diff --git a/arch/parisc/defpalo.conf b/arch/parisc/defpalo.conf
index 4e1ae25..fac130a 100644
--- a/arch/parisc/defpalo.conf
+++ b/arch/parisc/defpalo.conf
@@ -4,7 +4,7 @@
 # Most people using 'make palo' want a bootable file, usable for
 # network or tape booting for example.
 --init-tape=lifimage
---recoverykernel=vmlinux
+--recoverykernel=vmlinuz
 
 ########## Pick your ROOT here! ##########
 # You need at least one 'root='!
@@ -12,10 +12,10 @@
 # If you want a root ramdisk, use the next 2 lines
 #   (Edit the ramdisk image name!!!!)
 --ramdisk=ram-disk-image-file
---commandline=0/vmlinux HOME=/ root=/dev/ram initrd=0/ramdisk
+--commandline=0/vmlinuz HOME=/ root=/dev/ram initrd=0/ramdisk
 
 # If you want NFS root, use the following command line (Edit the HOSTNAME!!!)
-#--commandline=0/vmlinux HOME=/ root=/dev/nfs nfsroot=HOSTNAME ip=bootp
+#--commandline=0/vmlinuz HOME=/ root=/dev/nfs nfsroot=HOSTNAME ip=bootp
 
 # If you have root on a disk partition, use this (Edit the partition name!!!)
-#--commandline=0/vmlinux HOME=/ root=/dev/sda1
+#--commandline=0/vmlinuz HOME=/ root=/dev/sda1
diff --git a/arch/parisc/install.sh b/arch/parisc/install.sh
index e593fc8..4da682b 100644
--- a/arch/parisc/install.sh
+++ b/arch/parisc/install.sh
@@ -26,13 +26,13 @@ if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
 
 # Default install
 
-if [ -f $4/vmlinux ]; then
-	mv $4/vmlinux $4/vmlinux.old
+if [ -f $4/vmlinuz ]; then
+	mv $4/vmlinuz $4/vmlinuz.old
 fi
 
 if [ -f $4/System.map ]; then
 	mv $4/System.map $4/System.old
 fi
 
-cat $2 > $4/vmlinux
+cat $2 > $4/vmlinuz
 cp $3 $4/System.map
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: implement full version of access_ok()
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Up to now PA-RISC could live with a trivial version of access_ok().
Our fault handlers can correctly handle fault cases.

But testcases showed that we need a better access check else we won't
always return correct errno failure codes to userspace.

Problem showed up during 32bit userspace tests in which writev() used a
32bit memory area and length which would then wrap around on 64bit
kernel.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index e0a8235..37ca987 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -4,11 +4,14 @@
 /*
  * User space memory access functions
  */
+#include <asm/processor.h>
 #include <asm/page.h>
 #include <asm/cache.h>
 #include <asm/errno.h>
 #include <asm-generic/uaccess-unaligned.h>
 
+#include <linux/sched.h>
+
 #define VERIFY_READ 0
 #define VERIFY_WRITE 1
 
@@ -33,12 +36,43 @@ extern int __get_user_bad(void);
 extern int __put_kernel_bad(void);
 extern int __put_user_bad(void);
 
-static inline long access_ok(int type, const void __user * addr,
-		unsigned long size)
+
+/*
+ * Test whether a block of memory is a valid user space address.
+ * Returns 0 if the range is valid, nonzero otherwise.
+ */
+static inline int __range_not_ok(unsigned long addr, unsigned long size,
+				 unsigned long limit)
 {
-	return 1;
+	unsigned long __newaddr = addr + size;
+	return (__newaddr < addr || __newaddr > limit || size > limit);
 }
 
+/**
+ * access_ok: - Checks if a user space pointer is valid
+ * @type: Type of access: %VERIFY_READ or %VERIFY_WRITE.  Note that
+ *        %VERIFY_WRITE is a superset of %VERIFY_READ - if it is safe
+ *        to write to a block, it is always safe to read from it.
+ * @addr: User space pointer to start of block to check
+ * @size: Size of block to check
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Checks if a pointer to a block of memory in user space is valid.
+ *
+ * Returns true (nonzero) if the memory block may be valid, false (zero)
+ * if it is definitely invalid.
+ *
+ * Note that, depending on architecture, this function probably just
+ * checks that the pointer is in the user space range - after calling
+ * this function, memory access functions may still return -EFAULT.
+ */
+#define access_ok(type, addr, size)					\
+(	__chk_user_ptr(addr),						\
+	!__range_not_ok((unsigned long) (__force void *) (addr),	\
+			size, user_addr_max())				\
+)
+
 #define put_user __put_user
 #define get_user __get_user
 
@@ -218,7 +252,11 @@ extern long lstrnlen_user(const char __user *,long);
 /*
  * Complex access routines -- macros
  */
-#define user_addr_max() (~0UL)
+#ifdef CONFIG_COMPAT
+#define user_addr_max() (TASK_SIZE)
+#else
+#define user_addr_max() (DEFAULT_TASK_SIZE)
+#endif
 
 #define strnlen_user lstrnlen_user
 #define strlen_user(str) lstrnlen_user(str, 0x7fffffffL)
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: switch to gzip-compressed vmlinuz kernel
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	James Bottomley <James.Bottomley@HansenPartnership.com>
To: Helge Deller <deller@gmx.de>
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On 29-Jun-13, at 7:31 AM, Helge Deller wrote:

> PALO version 1.9 (or higher) is required for this which is available  
> in
> the dev_gzip branch of
> git://git.kernel.org/pub/scm/linux/kernel/git/deller/palo.git


Helge, as the resident palo guru, could you update the debian/ 
changelog and
build a new package when you make changes?  We have gone through about
three versions without any documentation as to what was changed.

I have built a palo-1.19 package which should be uploaded to the  
archive soon.
Made up something for changelog.

Dave
--
John David Anglin	dave.anglin@bell.net



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Hi Dave,

On 06/29/2013 09:38 PM, John David Anglin wrote:
> On 29-Jun-13, at 7:31 AM, Helge Deller wrote:
> 
>> PALO version 1.9 (or higher) is required for this which is available in
>> the dev_gzip branch of
>> git://git.kernel.org/pub/scm/linux/kernel/git/deller/palo.git
> 
> Helge, as the resident palo guru, could you update the debian/changelog and
> build a new package when you make changes?  We have gone through about
> three versions without any documentation as to what was changed.

Sure, that's what I had in mind. And add a spec file for RH :-)
But I just sent the patch to patchwork so that it's not being missed at some point.
I did not yet wanted to apply it....

> I have built a palo-1.19 package which should be uploaded to the archive soon.
> Made up something for changelog.

Please don't upload it yet.
It still needs more testing.

Helge

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On 29-Jun-13, at 3:54 PM, Helge Deller wrote:

> Hi Dave,
>
> On 06/29/2013 09:38 PM, John David Anglin wrote:
>> On 29-Jun-13, at 7:31 AM, Helge Deller wrote:
>>
>>> PALO version 1.9 (or higher) is required for this which is  
>>> available in
>>> the dev_gzip branch of
>>> git://git.kernel.org/pub/scm/linux/kernel/git/deller/palo.git
>>
>> Helge, as the resident palo guru, could you update the debian/ 
>> changelog and
>> build a new package when you make changes?  We have gone through  
>> about
>> three versions without any documentation as to what was changed.
>
> Sure, that's what I had in mind. And add a spec file for RH :-)
> But I just sent the patch to patchwork so that it's not being missed  
> at some point.
> I did not yet wanted to apply it....
>
>> I have built a palo-1.19 package which should be uploaded to the  
>> archive soon.
>> Made up something for changelog.
>
> Please don't upload it yet.
> It still needs more testing.


Holding.

I have been using 1.18 up to now.

Dave
--
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Subject: [PATCH] parisc: optimize mtsp(0,sr) inline assembly
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If the value which should be moved into a space register is zero, we can
optimize the inline assembly to become "mtsp %r0,%srX".

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/special_insns.h b/arch/parisc/include/asm/special_insns.h
index d306b75..e150930 100644
--- a/arch/parisc/include/asm/special_insns.h
+++ b/arch/parisc/include/asm/special_insns.h
@@ -32,9 +32,12 @@ static inline void set_eiem(unsigned long val)
 	cr;				\
 })
 
-#define mtsp(gr, cr) \
-	__asm__ __volatile__("mtsp %0,%1" \
+#define mtsp(val, cr) \
+	{ if (__builtin_constant_p(val) && ((val) == 0)) \
+	 __asm__ __volatile__("mtsp %%r0,%0" : : "i" (cr) : "memory"); \
+	else \
+	 __asm__ __volatile__("mtsp %0,%1" \
 		: /* no outputs */ \
-		: "r" (gr), "i" (cr) : "memory")
+		: "r" (val), "i" (cr) : "memory"); }
 
 #endif /* __PARISC_SPECIAL_INSNS_H */
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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] parisc: Ensure volatile space register %sr1 is not clobbered (v2)
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This patch is functionally identical to the previous one except the  
computation of the space id
is moved outside the lock region in the first hunk.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---



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diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index 5273da9..d703061 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -63,13 +63,14 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
 static inline void flush_tlb_page(struct vm_area_struct *vma,
 	unsigned long addr)
 {
-	unsigned long flags;
+	unsigned long flags, sid;
 
 	/* For one page, it's not worth testing the split_tlb variable */
 
 	mb();
-	mtsp(vma->vm_mm->context,1);
+	sid = vma->vm_mm->context;
 	purge_tlb_start(flags);
+	mtsp(sid,1);
 	pdtlb(addr);
 	pitlb(addr);
 	purge_tlb_end(flags);
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 65fb4cb..2e65aa5 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -440,8 +440,8 @@ void __flush_tlb_range(unsigned long sid, unsigned long start,
 	else {
 		unsigned long flags;
 
-		mtsp(sid, 1);
 		purge_tlb_start(flags);
+		mtsp(sid, 1);
 		if (split_tlb) {
 			while (npages--) {
 				pdtlb(start);

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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: switch to gzip-compressed vmlinuz kernel
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	James Bottomley <James.Bottomley@HansenPartnership.com>
To: John David Anglin <dave.anglin@bell.net>
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On 06/29/2013 10:00 PM, John David Anglin wrote:
>>> I have built a palo-1.19 package which should be uploaded to the archive soon.
>>> Made up something for changelog.

FYI, I've just uploaded a new palo-1.90 package with changelog and such to our repository at parisc-linux.org.
My palo source repository is http://git.kernel.org/cgit/linux/kernel/git/deller/palo.git
The master branch now holds all my changes - do not use the dev_gzip branch any longer.

I'm planning for a palo-2.0 package as soon as I have time to finish the other wishlist items (e.g. xz-support, loading ISO/tftboot images, ...).
 
Helge
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From - Thu Nov 08 21:09:28 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: megaraid hang on parisc
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On Wed, 2013-07-03 at 21:28 +0200, Helge Deller wrote:
>                 Cc:
> list parisc-linux
> <parisc-linux@lists.parisc-linux.org>

Wrong list ... we switched to vger long ago (cc updated)

> Hi James,
> 
> one of my parisc machines has a built-in (HP) megaraid controller.
> 
> With Linux kernel 3.10(final) I get a hang in issue_scb_block() in drivers/scsi/megaraid.c
> which is then finally detected and killed by the hung tasks thread.   
> Maybe you have an idea?

It's probably one of

     1. Endianness issue in the driver meaning the command doesn't look
        right to the firmware
     2. Failure to Issue, may be a missed PCI post flush
     3. Interrupt routing problem

But without diagnosing, it's hard to say.

James

> This is not special to 3.10 - it happens with older kernel releases as well.
> 
> Helge
> 
> Synthesizing the initial hotplug events...megaraid_legacy 0000:50:00.1: enabling device (0000 -> 0002)
> megaraid_legacy 0000:50:00.1: enabling SERR and PARITY (0002 -> 0142)
> megaraid: found 0x8086:0x1960:bus 80:slot 0:func 1
> scsi4:Found MegaRAID controller at 0x7e000, IRQ:71
> done.
> Waiting for /dev to be fully populated...
> ....
> BUG: soft lockup - CPU#2 stuck for 23s! [modprobe:1272]
> Modules linked in: megaraid(+)
> CPU: 2 PID: 1272 Comm: modprobe Not tainted 3.10.0-64bit-c3000+ #55
> task: 00000000bedee100 ti: 00000000bdca8000 task.ti: 00000000bdca8000
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000011001111111100001111 Not tainted
> r00-03  000000ff080cff0f 00000000040a3000 00000000040abca0 00000000bdca8bb0
> r04-07  00000000040a3000 00000000bdc87010 00000000bed0b490 00000000bdc87008
> r08-11  0000000000000050 00000000bed0b490 00000000bdca8a88 000000000007e000
> r12-15  ffffffff94000000 00000000bed0b000 0000000000000047 00000000bdc86000
> r16-19  0000000000001228 000000000000000f 0000000000005001 00000000000000ff
> r20-23  00000000bdc8701e 00000000bdca8a96 00000000bf7220c0 0000001ae4d03500
> r24-27  0000000040b58cf0 00000000bdca8a88 00000000bed0b490 00000000040a3000
> r28-31  00000000000000ff 00000000bdca8b80 00000000bdca8c70 00000000000000ff
> sr00-03  0000000000000000 0000000000000000 0000000000000000 000000000007f000
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000040a566c 00000000040a5664
>  IIR: 08000240    ISR: 00000000bdca8d48  IOR: 0000000040c2ef80
>  CPU:        2   CR30: 00000000bdca8000 CR31: ffffffffffffffff
>  ORIG_R28: 0000000000000000
>  IAOQ[0]: issue_scb_block+0x134/0x4d8 [megaraid]
>  IAOQ[1]: issue_scb_block+0x12c/0x4d8 [megaraid]
>  RP(r2): megaraid_probe_one+0x808/0x1a68 [megaraid]
> Backtrace:
>  [<00000000040abca0>] megaraid_probe_one+0x808/0x1a68 [megaraid]
> 
> Kernel panic - not syncing: softlockup: hung tasks
> CPU: 2 PID: 1272 Comm: modprobe Not tainted 3.10.0-64bit-c3000+ #55
> Backtrace:
>  [<000000004012041c>] show_stack+0x2c/0x40
>  [<00000000403bf2fc>] dump_stack+0x64/0x78
>  [<000000004014b4a4>] panic+0x1a4/0x4f0
>  [<00000000401d1840>] watchdog_timer_fn+0x328/0x350
>  [<00000000401891b4>] hrtimer_run_queues+0x14c/0x3e0
>  [<0000000040163e74>] run_local_timers+0x34/0x70
>  [<0000000040163f28>] update_process_times+0x78/0x148
>  [<0000000040121ae0>] timer_interrupt+0x200/0x288
>  [<00000000401d2c98>] handle_irq_event_percpu+0xb8/0x378
>  [<00000000401d8d0c>] handle_percpu_irq+0xbc/0xf8
>  [<00000000401d1d0c>] generic_handle_irq+0x4c/0x68
>  [<00000000401062d0>] syscall_do_resched+0x28/0x34



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From - Thu Nov 08 21:09:28 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix gcc miscompilation in pa_memcpy()
Date: Thu, 4 Jul 2013 22:34:11 +0200
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To: linux-parisc@vger.kernel.org,
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When running the LTP testsuite one may hit this kernel BUG() with the
write06 testcase:

kernel BUG at mm/filemap.c:2023!
CPU: 1 PID: 8614 Comm: writev01 Not tainted 3.10.0-rc7-64bit-c3000+ #6
IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401e6e84 00000000401e6e88
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000001fbe0380820
 CPU:        1   CR30: 00000000bef80000 CR31: ffffffffffffffff
 ORIG_R28: 00000000bdc192c0
 IAOQ[0]: iov_iter_advance+0x3c/0xc0
 IAOQ[1]: iov_iter_advance+0x40/0xc0
 RP(r2): generic_file_buffered_write+0x204/0x3f0
Backtrace:
 [<00000000401e764c>] generic_file_buffered_write+0x204/0x3f0
 [<00000000401eab24>] __generic_file_aio_write+0x244/0x448
 [<00000000401eadc0>] generic_file_aio_write+0x98/0x150
 [<000000004024f460>] do_sync_readv_writev+0xc0/0x130
 [<000000004025037c>] compat_do_readv_writev+0x12c/0x340
 [<00000000402505f8>] compat_writev+0x68/0xa0
 [<0000000040251d88>] compat_SyS_writev+0x98/0xf8

Reason for this crash is a gcc miscompilation in the fault handlers of
pa_memcpy() which return the fault address instead of the copied bytes.
Since this seems to be a generic problem with gcc-4.7.x (and below), it's
better to simplify the fault handlers in pa_memcpy to avoid this problem.

Here is a simple reproducer for the problem:

int main(int argc, char **argv)
{
	int fd, nbytes;
	struct iovec wr_iovec[] = {
		{ "TEST STRING                     ",32},
		{ (char*)0x40005000,32} }; // random memory.
	fd = open(DATA_FILE, O_RDWR | O_CREAT, 0666);
	nbytes = writev(fd, wr_iovec, 2);
	printf("return value = %d, errno %d (%s)\n",
		nbytes, errno, strerror(errno));
	return 0;
}

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: John David Anglin <dave.anglin@bell.net>

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index a49cc81..ac4370b 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -2,6 +2,7 @@
  *    Optimized memory copy routines.
  *
  *    Copyright (C) 2004 Randolph Chung <tausq@debian.org>
+ *    Copyright (C) 2013 Helge Deller <deller@gmx.de>
  *
  *    This program is free software; you can redistribute it and/or modify
  *    it under the terms of the GNU General Public License as published by
@@ -153,17 +154,21 @@ static inline void prefetch_dst(const void *addr)
 #define prefetch_dst(addr) do { } while(0)
 #endif
 
+#define PA_MEMCPY_OK		0
+#define PA_MEMCPY_LOAD_ERROR	1
+#define PA_MEMCPY_STORE_ERROR	2
+
 /* Copy from a not-aligned src to an aligned dst, using shifts. Handles 4 words
  * per loop.  This code is derived from glibc. 
  */
-static inline unsigned long copy_dstaligned(unsigned long dst, unsigned long src, unsigned long len, unsigned long o_dst, unsigned long o_src, unsigned long o_len)
+static inline unsigned long copy_dstaligned(unsigned long dst,
+					unsigned long src, unsigned long len)
 {
 	/* gcc complains that a2 and a3 may be uninitialized, but actually
 	 * they cannot be.  Initialize a2/a3 to shut gcc up.
 	 */
 	register unsigned int a0, a1, a2 = 0, a3 = 0;
 	int sh_1, sh_2;
-	struct exception_data *d;
 
 	/* prefetch_src((const void *)src); */
 
@@ -197,7 +202,7 @@ static inline unsigned long copy_dstaligned(unsigned long dst, unsigned long src
 			goto do2;
 		case 0:
 			if (len == 0)
-				return 0;
+				return PA_MEMCPY_OK;
 			/* a3 = ((unsigned int *) src)[0];
 			   a0 = ((unsigned int *) src)[1]; */
 			ldw(s_space, 0, src, a3, cda_ldw_exc);
@@ -256,42 +261,35 @@ do0:
 	preserve_branch(handle_load_error);
 	preserve_branch(handle_store_error);
 
-	return 0;
+	return PA_MEMCPY_OK;
 
 handle_load_error:
 	__asm__ __volatile__ ("cda_ldw_exc:\n");
-	d = &__get_cpu_var(exception_data);
-	DPRINTF("cda_ldw_exc: o_len=%lu fault_addr=%lu o_src=%lu ret=%lu\n",
-		o_len, d->fault_addr, o_src, o_len - d->fault_addr + o_src);
-	return o_len * 4 - d->fault_addr + o_src;
+	return PA_MEMCPY_LOAD_ERROR;
 
 handle_store_error:
 	__asm__ __volatile__ ("cda_stw_exc:\n");
-	d = &__get_cpu_var(exception_data);
-	DPRINTF("cda_stw_exc: o_len=%lu fault_addr=%lu o_dst=%lu ret=%lu\n",
-		o_len, d->fault_addr, o_dst, o_len - d->fault_addr + o_dst);
-	return o_len * 4 - d->fault_addr + o_dst;
+	return PA_MEMCPY_STORE_ERROR;
 }
 
 
-/* Returns 0 for success, otherwise, returns number of bytes not transferred. */
-static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+/* Returns PA_MEMCPY_OK, PA_MEMCPY_LOAD_ERROR or PA_MEMCPY_STORE_ERROR.
+ * In case of an access fault the faulty address can be read from the per_cpu
+ * exception data struct. */
+static unsigned long pa_memcpy_internal(void *dstp, const void *srcp,
+					unsigned long len)
 {
 	register unsigned long src, dst, t1, t2, t3;
 	register unsigned char *pcs, *pcd;
 	register unsigned int *pws, *pwd;
 	register double *pds, *pdd;
-	unsigned long ret = 0;
-	unsigned long o_dst, o_src, o_len;
-	struct exception_data *d;
+	unsigned long ret;
 
 	src = (unsigned long)srcp;
 	dst = (unsigned long)dstp;
 	pcs = (unsigned char *)srcp;
 	pcd = (unsigned char *)dstp;
 
-	o_dst = dst; o_src = src; o_len = len;
-
 	/* prefetch_src((const void *)srcp); */
 
 	if (len < THRESHOLD)
@@ -401,7 +399,7 @@ byte_copy:
 		len--;
 	}
 
-	return 0;
+	return PA_MEMCPY_OK;
 
 unaligned_copy:
 	/* possibly we are aligned on a word, but not on a double... */
@@ -438,8 +436,7 @@ unaligned_copy:
 		src = (unsigned long)pcs;
 	}
 
-	ret = copy_dstaligned(dst, src, len / sizeof(unsigned int), 
-		o_dst, o_src, o_len);
+	ret = copy_dstaligned(dst, src, len / sizeof(unsigned int));
 	if (ret)
 		return ret;
 
@@ -454,17 +451,41 @@ unaligned_copy:
 
 handle_load_error:
 	__asm__ __volatile__ ("pmc_load_exc:\n");
-	d = &__get_cpu_var(exception_data);
-	DPRINTF("pmc_load_exc: o_len=%lu fault_addr=%lu o_src=%lu ret=%lu\n",
-		o_len, d->fault_addr, o_src, o_len - d->fault_addr + o_src);
-	return o_len - d->fault_addr + o_src;
+	return PA_MEMCPY_LOAD_ERROR;
 
 handle_store_error:
 	__asm__ __volatile__ ("pmc_store_exc:\n");
+	return PA_MEMCPY_STORE_ERROR;
+}
+
+
+/* Returns 0 for success, otherwise, returns number of bytes not transferred. */
+static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+{
+	unsigned long ret, fault_addr, reference;
+	struct exception_data *d;
+
+	ret = pa_memcpy_internal(dstp, srcp, len);
+	if (likely(ret == PA_MEMCPY_OK))
+		return 0;
+
+	/* if a load or store fault occured we can get the faulty addr */
 	d = &__get_cpu_var(exception_data);
-	DPRINTF("pmc_store_exc: o_len=%lu fault_addr=%lu o_dst=%lu ret=%lu\n",
-		o_len, d->fault_addr, o_dst, o_len - d->fault_addr + o_dst);
-	return o_len - d->fault_addr + o_dst;
+	fault_addr = d->fault_addr;
+
+	/* error in load or store? */
+	if (ret == PA_MEMCPY_LOAD_ERROR)
+		reference = (unsigned long) srcp;
+	else
+		reference = (unsigned long) dstp;
+
+	DPRINTF("pa_memcpy: fault type = %lu, len=%lu fault_addr=%lu ref=%lu\n",
+		ret, len, fault_addr, reference);
+
+	if (fault_addr >= reference)
+		return len - (fault_addr - reference);
+	else
+		return len;
 }
 
 #ifdef __KERNEL__
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Am Donnerstag 04 Juli 2013, 22:34:11 schrieb Helge Deller:
> When running the LTP testsuite one may hit this kernel BUG() with the
> write06 testcase:
> 
> kernel BUG at mm/filemap.c:2023!
> CPU: 1 PID: 8614 Comm: writev01 Not tainted 3.10.0-rc7-64bit-c3000+ #6
> IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401e6e84
> 00000000401e6e88 IIR: 03ffe01f    ISR: 0000000010340000  IOR:
> 000001fbe0380820
>  CPU:        1   CR30: 00000000bef80000 CR31: ffffffffffffffff
>  ORIG_R28: 00000000bdc192c0
>  IAOQ[0]: iov_iter_advance+0x3c/0xc0
>  IAOQ[1]: iov_iter_advance+0x40/0xc0
>  RP(r2): generic_file_buffered_write+0x204/0x3f0
> Backtrace:
>  [<00000000401e764c>] generic_file_buffered_write+0x204/0x3f0
>  [<00000000401eab24>] __generic_file_aio_write+0x244/0x448
>  [<00000000401eadc0>] generic_file_aio_write+0x98/0x150
>  [<000000004024f460>] do_sync_readv_writev+0xc0/0x130
>  [<000000004025037c>] compat_do_readv_writev+0x12c/0x340
>  [<00000000402505f8>] compat_writev+0x68/0xa0
>  [<0000000040251d88>] compat_SyS_writev+0x98/0xf8
> 
> Reason for this crash is a gcc miscompilation in the fault handlers of
> pa_memcpy() which return the fault address instead of the copied bytes.
> Since this seems to be a generic problem with gcc-4.7.x (and below), it's
> better to simplify the fault handlers in pa_memcpy to avoid this problem.

Which gcc PR# is that?

Greetings,

Eike
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] parisc: Fix gcc miscompilation in pa_memcpy()
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On 7/5/2013 5:05 PM, Rolf Eike Beer wrote:
> Am Donnerstag 04 Juli 2013, 22:34:11 schrieb Helge Deller:
>> When running the LTP testsuite one may hit this kernel BUG() with the
>> write06 testcase:
>>
>> kernel BUG at mm/filemap.c:2023!
>> CPU: 1 PID: 8614 Comm: writev01 Not tainted 3.10.0-rc7-64bit-c3000+ #6
>> IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401e6e84
>> 00000000401e6e88 IIR: 03ffe01f    ISR: 0000000010340000  IOR:
>> 000001fbe0380820
>>   CPU:        1   CR30: 00000000bef80000 CR31: ffffffffffffffff
>>   ORIG_R28: 00000000bdc192c0
>>   IAOQ[0]: iov_iter_advance+0x3c/0xc0
>>   IAOQ[1]: iov_iter_advance+0x40/0xc0
>>   RP(r2): generic_file_buffered_write+0x204/0x3f0
>> Backtrace:
>>   [<00000000401e764c>] generic_file_buffered_write+0x204/0x3f0
>>   [<00000000401eab24>] __generic_file_aio_write+0x244/0x448
>>   [<00000000401eadc0>] generic_file_aio_write+0x98/0x150
>>   [<000000004024f460>] do_sync_readv_writev+0xc0/0x130
>>   [<000000004025037c>] compat_do_readv_writev+0x12c/0x340
>>   [<00000000402505f8>] compat_writev+0x68/0xa0
>>   [<0000000040251d88>] compat_SyS_writev+0x98/0xf8
>>
>> Reason for this crash is a gcc miscompilation in the fault handlers of
>> pa_memcpy() which return the fault address instead of the copied bytes.
>> Since this seems to be a generic problem with gcc-4.7.x (and below), it's
>> better to simplify the fault handlers in pa_memcpy to avoid this problem.
> Which gcc PR# is that?
There is no gcc PR as pa_memcpy is not legitimate C code.  There is an 
implicit assumption
that certain variables will contain correct values when an exception 
occurs and the code randomly
jumps to one of the exception blocks.  There is no guarantee of this.  
If a PR was filed, it would likely
be marked as invalid.

I would judge there's no hope in fixing this in 4.7.

Dave

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Graham Gower <graham.gower <at> gmail.com> writes:

> Looks rather similar.
> 
> burke:~# modprobe radeon
> ...
> [  531.016000] BUG: soft lockup - CPU#3 stuck for 22s! [bash:2745]
> ...
> [  533.364000] Kernel panic - not syncing: softlockup: hung tasks

Same here at c8000 with firegl x3, running unstable Debian with vanilla 
3.10 kernel. Does anyone know a solution?



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From: Grant Grundler <grantgrundler@gmail.com>
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Subject: FREE: a500, J6000, PCI cards
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Sorry to say, I haven't powered up my PA-RISC HW in over 2 years.
That's a clear sign I need to clean out the space for other projects.

If anyone in the San Francisco Bay Area wants to pick up, please email
me off list to arrange a time to stop by my house (or work if that's
more convient).

Since I'm giving these away, I'm asking they not be resold, only
re-gifted or recycled.

A500 and J6000 are both Dual CPU (single core) and more than 4GB of
RAM. I have lots of PCI cards to go with them and an extra j6000 IO
cage.

cheers,
grant
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Helge Deller <deller <at> gmx.de> writes:

> I did not tested X11 yet (still need to fully install the C8000 with our
> unstable) - but Thomas mentioned once that this is needed for X11.

I've built from test-3.10 branch of your repo:
Linux version 3.10.0-rc6-64bit-c3000+ (root@parisc) 
(gcc version 4.6.4 (GCC) ) #4 SMP PREEMPT Mon Jul 8 23:16:48 
MSK 2013

I'm using a c8000 with firegl x3. I approve that console works, 
although in an unaccelerated mode. However xorg isn't:
http://pastebin.com/Y1h2BVHB
The system is latest unstable. The xorg is of 1:7.7+3 version.

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On 7/9/2013 1:34 AM, Alex Ivanov wrote:
> I'm using a c8000 with firegl x3. I approve that console works,
> although in an unaccelerated mode. However xorg isn't:
> http://pastebin.com/Y1h2BVHB
> The system is latest unstable. The xorg is of 1:7.7+3 version.
Suggest you hack arch/parisc/kernel/cache.c to disable this
optimization:

         /* Flushing the whole cache on each cpu takes forever on
            rp3440, etc.  So, avoid it if the mm isn't too big.  */
         if (mm_total_size(mm) < parisc_cache_flush_threshold) {

It is probably the get_ptep call in the non current case that's failing
with firegl x3.  It would be useful if you could test if the current case
, "mm->context == mfsp(3)" case works.  You would have to move return
and disable non current block.

Dave

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John David Anglin <dave.anglin <at> bell.net> writes:

> It would be useful if you could test if the current case
> , "mm->context == mfsp(3)" case works.
> You would have to move return
> and disable non current block.

Done. The system seems to work as usual. Should i do 
some specific checks?

> Suggest you hack arch/parisc/kernel/cache.c to 
> disable this optimization

The panic on SMP kernel changed to another one:
http://pastebin.com/SfUfd0Un
Same was before with an UP kernel. The only thing
i've changed since is moving to the latest toolchains.
Can't reproduce the previous panic case, so can't
comment on your proposed solution.

P.S.: The hw is not faulty, works ok under hpux.

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This is a multi-part message in MIME format.
--------------060600090709030508050008
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On 7/9/2013 3:45 PM, Alex Ivanov wrote:
> The panic on SMP kernel changed to another one:
> http://pastebin.com/SfUfd0Un
This is just a guess but I don't think page is valid
if the pfn is not valid.  You might try this untested change.

flush_cache_mm might have same problem (i.e., we may need to
check whether the pfn for the pte is valid).

Dave

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--------------060600090709030508050008
Content-Type: text/plain; charset=windows-1252;
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diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 65fb4cb..8f60123 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -74,10 +74,13 @@ EXPORT_SYMBOL(flush_cache_all_local);
 void
 update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
 {
-	struct page *page = pte_page(*ptep);
+	struct page *page;
 
-	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
-	    test_bit(PG_dcache_dirty, &page->flags)) {
+	if (!pfn_valid(*ptep))
+		return;
+
+	page = pte_page(*ptep);
+	if (page_mapping(page) && test_bit(PG_dcache_dirty, &page->flags)) {
 
 		flush_kernel_dcache_page(page);
 		clear_bit(PG_dcache_dirty, &page->flags);

--------------060600090709030508050008--
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi Linus,

Please pull the latest parisc updates from

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-for-3.11

PA-RISC updates for v3.11 include a gcc miscompilation fix,
gzip-compressed vmlinuz support, a fix in the PCI code for ATI FireGL
support on c8000 machines, a fix to prevent that %sr1 is being clobbered
and a few smaller optimizations and documentation updates.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (6):
      parisc: fix LMMIO mismatch between PAT length and MASK register
      parisc: more capabilities info in /proc/cpuinfo
      parisc: document the shadow registers
      parisc: switch to gzip-compressed vmlinuz kernel
      parisc: optimize mtsp(0,sr) inline assembly
      parisc: Fix gcc miscompilation in pa_memcpy()

John David Anglin (1):
      parisc: Ensure volatile space register %sr1 is not clobbered

 Documentation/parisc/registers          |  8 ++++
 arch/parisc/Makefile                    | 15 +++++--
 arch/parisc/defpalo.conf                |  8 ++--
 arch/parisc/include/asm/special_insns.h |  9 ++--
 arch/parisc/include/asm/tlbflush.h      |  5 ++-
 arch/parisc/install.sh                  |  6 +--
 arch/parisc/kernel/cache.c              |  2 +-
 arch/parisc/kernel/processor.c          | 19 ++++++--
 arch/parisc/lib/memcpy.c                | 79 +++++++++++++++++++++------------
 drivers/parisc/lba_pci.c                | 56 +++++++++++++++++++++++
 10 files changed, 158 insertions(+), 49 deletions(-)
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Cc: Alex Ivanov <gnidorah@p0n4ik.tk>, linux-parisc@vger.kernel.org
To: John David Anglin <dave.anglin@bell.net>
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On 9-Jul-13, at 4:59 PM, John David Anglin wrote:

> On 7/9/2013 3:45 PM, Alex Ivanov wrote:
>> The panic on SMP kernel changed to another one:
>> http://pastebin.com/SfUfd0Un
> This is just a guess but I don't think page is valid
> if the pfn is not valid.  You might try this untested change.
>
> flush_cache_mm might have same problem (i.e., we may need to
> check whether the pfn for the pte is valid).

This version compiles and boots on rp3440.

Dave
--
John David Anglin	dave.anglin@bell.net



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diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 65fb4cb..b07720f 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -74,10 +74,13 @@ EXPORT_SYMBOL(flush_cache_all_local);
 void
 update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
 {
-	struct page *page = pte_page(*ptep);
+	struct page *page;
 
-	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
-	    test_bit(PG_dcache_dirty, &page->flags)) {
+	if (!pfn_valid(pte_pfn(*ptep)))
+		return;
+
+	page = pte_page(*ptep);
+	if (page_mapping(page) && test_bit(PG_dcache_dirty, &page->flags)) {
 
 		flush_kernel_dcache_page(page);
 		clear_bit(PG_dcache_dirty, &page->flags);
@@ -519,8 +522,9 @@ void flush_cache_mm(struct mm_struct *mm)
 					pte_t *ptep = get_ptep(pgd, addr);
 					if (ptep != NULL) {
 						pte_t pte = *ptep;
-						__flush_cache_page(vma, addr,
-						  page_to_phys(pte_page(pte)));
+						if (pfn_valid(pte_pfn(pte)))
+							__flush_cache_page(vma, addr,
+						  		page_to_phys(pte_page(pte)));
 					}
 				}
 			}

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From: gnidorah@p0n4ik.tk
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Subject: [PATCH] parisc: agp/parisc-agp: allow binding of user memory to the AGP GART
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The patch allows binding of user memory to the AGP GART=20
on systems with HP Quicksilver AGP bus. This resolves 'bind memory =
failed'=20
error seen in dmesg:

[   29.365973] [TTM] AGP Bind memory failed.
=85
[   29.367030] [drm] Forcing AGP to PCI mode=20

The system doesn't more fail to bind the memory, and hence not falling
back to the PCI mode (if other failures aren't detected).

This is just a simple write down from the following patches:
agp/amd-k7: Allow binding user memory to the AGP GART [1]
agp/hp-agp: Allow binding user memory to the AGP GART [2]

Both fixes are in upstream.

[1] https://lkml.org/lkml/2010/10/15/469
[2] http://marc.info/?l=3Dlinux-ia64&m=3D131412890819311&w=3D2


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diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index 94821ab..9576fad 100644
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -129,7 +129,8 @@ parisc_agp_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
 	off_t j, io_pg_start;
 	int io_pg_count;
 
-	if (type != 0 || mem->type != 0) {
+	if (type != mem->type ||
+		agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type)) {
 		return -EINVAL;
 	}
 
@@ -175,7 +176,8 @@ parisc_agp_remove_memory(struct agp_memory *mem, off_t pg_start, int type)
 	struct _parisc_agp_info *info = &parisc_agp_info;
 	int i, io_pg_start, io_pg_count;
 
-	if (type != 0 || mem->type != 0) {
+	if (type != mem->type ||
+		agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type)) {
 		return -EINVAL;
 	}
 

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From - Thu Nov 08 21:09:30 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: agp/parisc-agp: allow binding of user memory
 to the AGP GART
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Hi Alex,

On 07/10/2013 08:17 AM, gnidorah@p0n4ik.tk wrote:
> The patch allows binding of user memory to the AGP GART=20
> on systems with HP Quicksilver AGP bus. This resolves 'bind memory fa=
iled'=20
> error seen in dmesg:
>=20
> [   29.365973] [TTM] AGP Bind memory failed.
> =85
> [   29.367030] [drm] Forcing AGP to PCI mode=20
>=20
> The system doesn't more fail to bind the memory, and hence not fallin=
g
> back to the PCI mode (if other failures aren't detected).
>=20
> This is just a simple write down from the following patches:
> agp/amd-k7: Allow binding user memory to the AGP GART [1]
> agp/hp-agp: Allow binding user memory to the AGP GART [2]
>=20
> Both fixes are in upstream.
>=20
> [1] https://lkml.org/lkml/2010/10/15/469
> [2] http://marc.info/?l=3Dlinux-ia64&m=3D131412890819311&w=3D2

Thanks for the patch!!!

Could you please attach patches inline (as text) next time?
Our patchwork tool (https://patchwork.kernel.org/project/linux-parisc/l=
ist/) missed to pick up your patch too.

=46urthermore, I just noticed that vger.kernel.org stopped forwarding m=
e mails to the mailing list
during the last few days. So, I would have missed your patch if I would=
n't have noticed the failing forwarding.

Thanks,
Helge

PS: I attached it here again for patchwork....


diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-ag=
p.c
index 94821ab..9576fad 100644
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -129,7 +129,8 @@ parisc_agp_insert_memory(struct agp_memory *mem, of=
f_t pg_start, int type)
 	off_t j, io_pg_start;
 	int io_pg_count;
=20
-	if (type !=3D 0 || mem->type !=3D 0) {
+	if (type !=3D mem->type ||
+		agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type)) {
 		return -EINVAL;
 	}
=20
@@ -175,7 +176,8 @@ parisc_agp_remove_memory(struct agp_memory *mem, of=
f_t pg_start, int type)
 	struct _parisc_agp_info *info =3D &parisc_agp_info;
 	int i, io_pg_start, io_pg_count;
=20
-	if (type !=3D 0 || mem->type !=3D 0) {
+	if (type !=3D mem->type ||
+		agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type)) {
 		return -EINVAL;
 	}
=20
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: agp/parisc-agp: allow binding of user memory
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Hi Alex,

On 07/10/2013 09:14 PM, Helge Deller wrote:
> On 07/10/2013 08:17 AM, gnidorah@p0n4ik.tk wrote:
>> The patch allows binding of user memory to the AGP GART=20
>> on systems with HP Quicksilver AGP bus. This resolves 'bind memory f=
ailed'=20
>> error seen in dmesg:
>>
>> [   29.365973] [TTM] AGP Bind memory failed.
>> =85
>> [   29.367030] [drm] Forcing AGP to PCI mode=20
>>
>> The system doesn't more fail to bind the memory, and hence not falli=
ng
>> back to the PCI mode (if other failures aren't detected).
>>
>> This is just a simple write down from the following patches:
>> agp/amd-k7: Allow binding user memory to the AGP GART [1]
>> agp/hp-agp: Allow binding user memory to the AGP GART [2]
>>
>> Both fixes are in upstream.
>>
>> [1] https://lkml.org/lkml/2010/10/15/469
>> [2] http://marc.info/?l=3Dlinux-ia64&m=3D131412890819311&w=3D2


Please send an Signed-off-by: line for your patch too...

Helge




>=20
> Thanks for the patch!!!
>=20
> Could you please attach patches inline (as text) next time?
> Our patchwork tool (https://patchwork.kernel.org/project/linux-parisc=
/list/) missed to pick up your patch too.
>=20
> Furthermore, I just noticed that vger.kernel.org stopped forwarding m=
e mails to the mailing list
> during the last few days. So, I would have missed your patch if I wou=
ldn't have noticed the failing forwarding.
>=20
> Thanks,
> Helge
>=20
> PS: I attached it here again for patchwork....
>=20
>=20
> diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-=
agp.c
> index 94821ab..9576fad 100644
> --- a/drivers/char/agp/parisc-agp.c
> +++ b/drivers/char/agp/parisc-agp.c
> @@ -129,7 +129,8 @@ parisc_agp_insert_memory(struct agp_memory *mem, =
off_t pg_start, int type)
>  	off_t j, io_pg_start;
>  	int io_pg_count;
> =20
> -	if (type !=3D 0 || mem->type !=3D 0) {
> +	if (type !=3D mem->type ||
> +		agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type)) {
>  		return -EINVAL;
>  	}
> =20
> @@ -175,7 +176,8 @@ parisc_agp_remove_memory(struct agp_memory *mem, =
off_t pg_start, int type)
>  	struct _parisc_agp_info *info =3D &parisc_agp_info;
>  	int i, io_pg_start, io_pg_count;
> =20
> -	if (type !=3D 0 || mem->type !=3D 0) {
> +	if (type !=3D mem->type ||
> +		agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type)) {
>  		return -EINVAL;
>  	}
> =20
>=20

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From: Alex Ivanov <gnidorah@p0n4ik.tk>
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10.07.2013, 23:14, "Helge Deller" <deller@gmx.de>:

> =9AHi Alex,
>
> =9AThanks for the patch!!!
>
> =9ACould you please attach patches inline (as text) next time?
> =9AOur patchwork tool (https://patchwork.kernel.org/project/linux-par=
isc/list/) missed to pick up your patch too.
>
> =9AFurthermore, I just noticed that vger.kernel.org stopped forwardin=
g me mails to the mailing list
> =9Aduring the last few days. So, I would have missed your patch if I =
wouldn't have noticed the failing forwarding.
>
> =9AThanks,
> =9AHelge

Helge,

> Could you please attach patches inline (as text) next time?

My mistake, i'll do next time.

> Please send an Signed-off-by: line for your patch too...

Signed-off-by: Alex Ivanov <gnidorah@p0n4ik.tk>

Thank you!
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Sorry for not CC'ing to the list.

10.07.2013, 03:35, "John David Anglin" <dave.anglin@bell.net>:

> =9AOn 9-Jul-13, at 4:59 PM, John David Anglin wrote:
>> =9A=9AOn 7/9/2013 3:45 PM, Alex Ivanov wrote:
>>> =9A=9AThe panic on SMP kernel changed to another one:
>>> =9A=9Ahttp://pastebin.com/SfUfd0Un
>> =9A=9AThis is just a guess but I don't think page is valid
>> =9A=9Aif the pfn is not valid. =9AYou might try this untested change=
=2E
>>
>> =9A=9Aflush_cache_mm might have same problem (i.e., we may need to
>> =9A=9Acheck whether the pfn for the pte is valid).
> =9AThis version compiles and boots on rp3440.
>
> =9ADave
> =9A--
> =9AJohn David Anglin dave.anglin@bell.net

Dave,

Thank you so much! Your guess looks to be right. After applying of your
patch there was no more KP and X just worked.
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On 7/10/2013 4:19 PM, Alex Ivanov wrote:
> Sorry for not CC'ing to the list.
>
> 10.07.2013, 03:35, "John David Anglin" <dave.anglin@bell.net>:
>
>>   On 9-Jul-13, at 4:59 PM, John David Anglin wrote:
>>>    On 7/9/2013 3:45 PM, Alex Ivanov wrote:
>>>>    The panic on SMP kernel changed to another one:
>>>>    http://pastebin.com/SfUfd0Un
>>>    This is just a guess but I don't think page is valid
>>>    if the pfn is not valid.  You might try this untested change.
>>>
>>>    flush_cache_mm might have same problem (i.e., we may need to
>>>    check whether the pfn for the pte is valid).
>>   This version compiles and boots on rp3440.
>>
>>   Dave
>>   --
>>   John David Anglin dave.anglin@bell.net
> Dave,
>
> Thank you so much! Your guess looks to be right. After applying of your
> patch there was no more KP and X just worked.
I have been studying this issue a bit more.  It looks to me as if it 
would be better to call
vm_normal_page to get the page.  It returns NULL when we a have special 
mapping that
doesn't want to be associated with a struct page.  See comment in 
mm/memory.c.

I'll send a patch when I get a chance to test this approach.

Dave

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On Wed, Jul 10, 2013 at 1:19 PM, Alex Ivanov <gnidorah@p0n4ik.tk> wrote:
> Thank you so much! Your guess looks to be right. After applying of your
> patch there was no more KP and X just worked.

Nice! Does DRI work?
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11.07.2013, 01:14, "Matt Turner" <mattst88@gmail.com>:
> On Wed, Jul 10, 2013 at 1:19 PM, Alex Ivanov <gnidorah@p0n4ik.tk> wro=
te:
>
>> =9AThank you so much! Your guess looks to be right. After applying o=
f your
>> =9Apatch there was no more KP and X just worked.
>
> Nice! Does DRI work?

Not on my side. Plus i can't visually jump over 8bit depth, although Xo=
rg=20
states 24bit in it's log.
As for DRI, i'm experiencing=20
"ring test failed (scratch(0x15E4)=3D0xCAFEDEAD)" with a firegl x3.

Can't figure out why, the ring vaddr (0x0000000060001000) is within the
limits of dma32. But the ring test fails. And i'm afraid that just addi=
ng a=20
buffer bounces in places will not help.
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: add defconfig for c8000 machine
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/configs/c8000_defconfig b/arch/parisc/configs/c8000_defconfig
new file mode 100644
index 0000000..f110063
--- /dev/null
+++ b/arch/parisc/configs/c8000_defconfig
@@ -0,0 +1,279 @@
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_FHANDLE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_RELAY=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_RD_BZIP2=y
+CONFIG_RD_LZMA=y
+CONFIG_RD_LZO=y
+CONFIG_EXPERT=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_SLAB=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_BLK_DEV_INTEGRITY=y
+CONFIG_PA8X00=y
+CONFIG_MLONGCALLS=y
+CONFIG_64BIT=y
+CONFIG_SMP=y
+CONFIG_PREEMPT=y
+# CONFIG_CROSS_MEMORY_ATTACH is not set
+CONFIG_IOMMU_CCIO=y
+CONFIG_PCI=y
+CONFIG_PCI_LBA=y
+# CONFIG_SUPERIO is not set
+# CONFIG_CHASSIS_LCD_LED is not set
+# CONFIG_PDC_CHASSIS is not set
+# CONFIG_PDC_CHASSIS_WARN is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_BINFMT_MISC=m
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=m
+CONFIG_XFRM_SUB_POLICY=y
+CONFIG_NET_KEY=m
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_IP_PNP_RARP=y
+CONFIG_NET_IPIP=m
+CONFIG_IP_MROUTE=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_SYN_COOKIES=y
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+CONFIG_INET_IPCOMP=m
+CONFIG_INET_XFRM_MODE_BEET=m
+CONFIG_INET_DIAG=m
+# CONFIG_IPV6 is not set
+CONFIG_IP_DCCP=m
+# CONFIG_IP_DCCP_CCID3 is not set
+CONFIG_TIPC=m
+CONFIG_LLC2=m
+CONFIG_DNS_RESOLVER=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+# CONFIG_STANDALONE is not set
+CONFIG_PARPORT=y
+CONFIG_PARPORT_PC=y
+CONFIG_PARPORT_PC_FIFO=y
+CONFIG_BLK_DEV_UMEM=m
+CONFIG_BLK_DEV_LOOP=m
+CONFIG_BLK_DEV_CRYPTOLOOP=m
+CONFIG_BLK_DEV_SX8=m
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=6144
+CONFIG_CDROM_PKTCDVD=m
+CONFIG_CDROM_PKTCDVD_WCACHE=y
+CONFIG_ATA_OVER_ETH=m
+CONFIG_IDE=y
+CONFIG_BLK_DEV_IDECD=y
+CONFIG_BLK_DEV_PLATFORM=y
+CONFIG_BLK_DEV_GENERIC=y
+CONFIG_BLK_DEV_SIIMAGE=y
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_ST=m
+CONFIG_BLK_DEV_SR=m
+CONFIG_CHR_DEV_SG=y
+CONFIG_CHR_DEV_SCH=m
+CONFIG_SCSI_CONSTANTS=y
+CONFIG_SCSI_LOGGING=y
+CONFIG_SCSI_FC_ATTRS=y
+CONFIG_SCSI_SAS_LIBSAS=m
+CONFIG_ISCSI_TCP=m
+CONFIG_ISCSI_BOOT_SYSFS=m
+CONFIG_FUSION=y
+CONFIG_FUSION_SPI=y
+CONFIG_FUSION_SAS=y
+CONFIG_NETDEVICES=y
+CONFIG_DUMMY=m
+CONFIG_NETCONSOLE=m
+CONFIG_TUN=y
+CONFIG_E1000=y
+CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_MPPE=m
+CONFIG_PPPOE=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
+# CONFIG_WLAN is not set
+CONFIG_INPUT_FF_MEMLESS=m
+# CONFIG_KEYBOARD_ATKBD is not set
+# CONFIG_KEYBOARD_HIL_OLD is not set
+# CONFIG_KEYBOARD_HIL is not set
+CONFIG_MOUSE_PS2=m
+CONFIG_INPUT_MISC=y
+CONFIG_INPUT_CM109=m
+CONFIG_SERIO_SERPORT=m
+CONFIG_SERIO_PARKBD=m
+CONFIG_SERIO_GSCPS2=m
+# CONFIG_HP_SDC is not set
+CONFIG_SERIO_PCIPS2=m
+CONFIG_SERIO_LIBPS2=y
+CONFIG_SERIO_RAW=m
+CONFIG_SERIAL_8250=y
+# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=8
+CONFIG_SERIAL_8250_RUNTIME_UARTS=8
+CONFIG_SERIAL_8250_EXTENDED=y
+# CONFIG_SERIAL_MUX is not set
+CONFIG_SERIAL_JSM=m
+CONFIG_PRINTER=y
+CONFIG_HW_RANDOM=y
+CONFIG_RAW_DRIVER=m
+CONFIG_PTP_1588_CLOCK=y
+CONFIG_SSB=m
+CONFIG_SSB_DRIVER_PCICORE=y
+CONFIG_AGP=y
+CONFIG_AGP_PARISC=y
+CONFIG_DRM=y
+CONFIG_DRM_RADEON=y
+CONFIG_FIRMWARE_EDID=y
+CONFIG_FB_FOREIGN_ENDIAN=y
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_FB_TILEBLITTING=y
+# CONFIG_FB_STI is not set
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+# CONFIG_LCD_CLASS_DEVICE is not set
+# CONFIG_BACKLIGHT_GENERIC is not set
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_STI_CONSOLE is not set
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+# CONFIG_LOGO_LINUX_CLUT224 is not set
+CONFIG_SOUND=m
+CONFIG_SND=m
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_MIXER_OSS=m
+CONFIG_SND_PCM_OSS=m
+CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_VERBOSE_PRINTK=y
+CONFIG_SND_AD1889=m
+# CONFIG_SND_USB is not set
+# CONFIG_SND_GSC is not set
+CONFIG_HID_A4TECH=m
+CONFIG_HID_APPLE=m
+CONFIG_HID_BELKIN=m
+CONFIG_HID_CHERRY=m
+CONFIG_HID_CHICONY=m
+CONFIG_HID_CYPRESS=m
+CONFIG_HID_DRAGONRISE=m
+CONFIG_HID_EZKEY=m
+CONFIG_HID_KYE=m
+CONFIG_HID_GYRATION=m
+CONFIG_HID_TWINHAN=m
+CONFIG_HID_KENSINGTON=m
+CONFIG_HID_LOGITECH=m
+CONFIG_HID_LOGITECH_DJ=m
+CONFIG_HID_MICROSOFT=m
+CONFIG_HID_MONTEREY=m
+CONFIG_HID_NTRIG=m
+CONFIG_HID_ORTEK=m
+CONFIG_HID_PANTHERLORD=m
+CONFIG_HID_PETALYNX=m
+CONFIG_HID_SAMSUNG=m
+CONFIG_HID_SUNPLUS=m
+CONFIG_HID_GREENASIA=m
+CONFIG_HID_SMARTJOYPLUS=m
+CONFIG_HID_TOPSEED=m
+CONFIG_HID_THRUSTMASTER=m
+CONFIG_HID_ZEROPLUS=m
+CONFIG_USB_HID=m
+CONFIG_USB=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_STORAGE=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
+CONFIG_EXT4_FS=m
+CONFIG_REISERFS_FS=m
+CONFIG_REISERFS_PROC_INFO=y
+CONFIG_XFS_FS=m
+CONFIG_XFS_POSIX_ACL=y
+CONFIG_QUOTA=y
+CONFIG_QFMT_V1=m
+CONFIG_QFMT_V2=m
+CONFIG_AUTOFS4_FS=m
+CONFIG_FUSE_FS=m
+CONFIG_ISO9660_FS=y
+CONFIG_JOLIET=y
+CONFIG_MSDOS_FS=m
+CONFIG_VFAT_FS=m
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_XATTR=y
+CONFIG_NFS_FS=m
+CONFIG_NLS_CODEPAGE_437=m
+CONFIG_NLS_CODEPAGE_737=m
+CONFIG_NLS_CODEPAGE_775=m
+CONFIG_NLS_CODEPAGE_850=m
+CONFIG_NLS_CODEPAGE_852=m
+CONFIG_NLS_CODEPAGE_855=m
+CONFIG_NLS_CODEPAGE_857=m
+CONFIG_NLS_CODEPAGE_860=m
+CONFIG_NLS_CODEPAGE_861=m
+CONFIG_NLS_CODEPAGE_862=m
+CONFIG_NLS_CODEPAGE_863=m
+CONFIG_NLS_CODEPAGE_864=m
+CONFIG_NLS_CODEPAGE_865=m
+CONFIG_NLS_CODEPAGE_866=m
+CONFIG_NLS_CODEPAGE_869=m
+CONFIG_NLS_CODEPAGE_936=m
+CONFIG_NLS_CODEPAGE_950=m
+CONFIG_NLS_CODEPAGE_932=m
+CONFIG_NLS_CODEPAGE_949=m
+CONFIG_NLS_CODEPAGE_874=m
+CONFIG_NLS_ISO8859_8=m
+CONFIG_NLS_CODEPAGE_1250=m
+CONFIG_NLS_CODEPAGE_1251=m
+CONFIG_NLS_ASCII=m
+CONFIG_NLS_ISO8859_1=m
+CONFIG_NLS_ISO8859_2=m
+CONFIG_NLS_ISO8859_3=m
+CONFIG_NLS_ISO8859_4=m
+CONFIG_NLS_ISO8859_5=m
+CONFIG_NLS_ISO8859_6=m
+CONFIG_NLS_ISO8859_7=m
+CONFIG_NLS_ISO8859_9=m
+CONFIG_NLS_ISO8859_13=m
+CONFIG_NLS_ISO8859_14=m
+CONFIG_NLS_ISO8859_15=m
+CONFIG_NLS_KOI8_R=m
+CONFIG_NLS_KOI8_U=m
+CONFIG_NLS_UTF8=m
+CONFIG_UNUSED_SYMBOLS=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_SLAB=y
+CONFIG_DEBUG_SLAB_LEAK=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_DEBUG_STACKOVERFLOW=y
+CONFIG_LOCKUP_DETECTOR=y
+CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_DEBUG_RT_MUTEXES=y
+CONFIG_RT_MUTEX_TESTER=y
+CONFIG_PROVE_RCU_DELAY=y
+CONFIG_DEBUG_BLOCK_EXT_DEVT=y
+CONFIG_LATENCYTOP=y
+CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
+CONFIG_KEYS=y
+# CONFIG_CRYPTO_HW is not set
+CONFIG_FONTS=y
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: add generic 32- and 64-bit defconfigs
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New defconfigs which should be able to boot on any 32/64bit machine.
Many drivers are selected to be compiled-in to avoid the need for an
additional initrd and still being able to boot.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig
new file mode 100644
index 0000000..7f03614
--- /dev/null
+++ b/arch/parisc/configs/generic-32bit_defconfig
@@ -0,0 +1,340 @@
+CONFIG_LOCALVERSION="-32bit"
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_FHANDLE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=16
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_RD_BZIP2=y
+CONFIG_RD_LZMA=y
+CONFIG_RD_LZO=y
+CONFIG_EXPERT=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_PERF_EVENTS=y
+CONFIG_SLAB=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+# CONFIG_LBDAF is not set
+# CONFIG_BLK_DEV_BSG is not set
+CONFIG_PA7100LC=y
+CONFIG_SMP=y
+CONFIG_HZ_100=y
+CONFIG_IOMMU_CCIO=y
+CONFIG_GSC_LASI=y
+CONFIG_GSC_WAX=y
+CONFIG_EISA=y
+CONFIG_PCI=y
+CONFIG_GSC_DINO=y
+CONFIG_PCI_LBA=y
+CONFIG_PCCARD=m
+CONFIG_YENTA=m
+CONFIG_PD6729=m
+CONFIG_I82092=m
+# CONFIG_PDC_CHASSIS is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_BINFMT_MISC=m
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=m
+CONFIG_NET_KEY=m
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+CONFIG_INET_DIAG=m
+CONFIG_LLC2=m
+# CONFIG_WIRELESS is not set
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+CONFIG_PARPORT=y
+CONFIG_PARPORT_PC=m
+CONFIG_PARPORT_PC_PCMCIA=m
+CONFIG_PARPORT_1284=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_CRYPTOLOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=6144
+CONFIG_IDE=y
+CONFIG_BLK_DEV_IDECS=m
+CONFIG_BLK_DEV_IDECD=y
+CONFIG_BLK_DEV_GENERIC=y
+CONFIG_BLK_DEV_NS87415=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_ST=y
+CONFIG_BLK_DEV_SR=y
+CONFIG_CHR_DEV_SG=y
+CONFIG_SCSI_LASI700=y
+CONFIG_SCSI_SYM53C8XX_2=y
+CONFIG_SCSI_ZALON=y
+CONFIG_SCSI_DH=y
+CONFIG_ATA=y
+CONFIG_MD=y
+CONFIG_BLK_DEV_MD=m
+CONFIG_MD_LINEAR=m
+CONFIG_MD_RAID0=m
+CONFIG_MD_RAID1=m
+CONFIG_MD_RAID10=m
+CONFIG_MD_RAID456=m
+CONFIG_BLK_DEV_DM=y
+CONFIG_DM_UEVENT=y
+CONFIG_NETDEVICES=y
+CONFIG_BONDING=m
+CONFIG_DUMMY=m
+CONFIG_TUN=m
+# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_NET_VENDOR_ADAPTEC is not set
+# CONFIG_NET_VENDOR_ALTEON is not set
+# CONFIG_NET_VENDOR_AMD is not set
+# CONFIG_NET_VENDOR_ATHEROS is not set
+# CONFIG_NET_CADENCE is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_BROCADE is not set
+# CONFIG_NET_VENDOR_CHELSIO is not set
+# CONFIG_NET_VENDOR_CIRRUS is not set
+# CONFIG_NET_VENDOR_CISCO is not set
+CONFIG_NET_TULIP=y
+CONFIG_TULIP=y
+# CONFIG_NET_VENDOR_DLINK is not set
+# CONFIG_NET_VENDOR_EMULEX is not set
+# CONFIG_NET_VENDOR_EXAR is not set
+# CONFIG_NET_VENDOR_FUJITSU is not set
+# CONFIG_NET_VENDOR_HP is not set
+CONFIG_LASI_82596=y
+# CONFIG_NET_VENDOR_MELLANOX is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_MYRI is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NVIDIA is not set
+# CONFIG_NET_VENDOR_OKI is not set
+# CONFIG_NET_PACKET_ENGINE is not set
+# CONFIG_NET_VENDOR_QLOGIC is not set
+# CONFIG_NET_VENDOR_REALTEK is not set
+# CONFIG_NET_VENDOR_RDC is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_SILAN is not set
+# CONFIG_NET_VENDOR_SIS is not set
+# CONFIG_NET_VENDOR_STMICRO is not set
+# CONFIG_NET_VENDOR_SUN is not set
+# CONFIG_NET_VENDOR_TEHUTI is not set
+# CONFIG_NET_VENDOR_TI is not set
+# CONFIG_NET_VENDOR_VIA is not set
+# CONFIG_NET_VENDOR_XIRCOM is not set
+CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPPOE=m
+# CONFIG_WLAN is not set
+CONFIG_INPUT_POLLDEV=y
+CONFIG_KEYBOARD_HIL_OLD=m
+CONFIG_KEYBOARD_HIL=m
+CONFIG_MOUSE_SERIAL=y
+CONFIG_INPUT_MISC=y
+CONFIG_INPUT_UINPUT=m
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_LEGACY_PTY_COUNT=64
+CONFIG_SERIAL_8250=y
+# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_CS=m
+CONFIG_SERIAL_8250_NR_UARTS=8
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_MANY_PORTS=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_PRINTER=m
+CONFIG_PPDEV=m
+# CONFIG_HW_RANDOM is not set
+CONFIG_I2C=y
+CONFIG_POWER_SUPPLY=y
+# CONFIG_HWMON is not set
+CONFIG_AGP=y
+CONFIG_VIDEO_OUTPUT_CONTROL=y
+CONFIG_FB=y
+CONFIG_FB_FOREIGN_ENDIAN=y
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_FB_MATROX=m
+CONFIG_FB_MATROX_G=y
+CONFIG_FB_VOODOO1=m
+CONFIG_DUMMY_CONSOLE_COLUMNS=128
+CONFIG_DUMMY_CONSOLE_ROWS=48
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+# CONFIG_LOGO_LINUX_CLUT224 is not set
+CONFIG_SOUND=m
+CONFIG_SND=m
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_MIXER_OSS=m
+CONFIG_SND_PCM_OSS=m
+CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_DYNAMIC_MINORS=y
+CONFIG_SND_AD1889=m
+# CONFIG_SND_PCMCIA is not set
+CONFIG_SND_HARMONY=m
+CONFIG_HIDRAW=y
+CONFIG_HID_A4TECH=y
+CONFIG_HID_APPLE=y
+CONFIG_HID_BELKIN=y
+CONFIG_HID_CHERRY=y
+CONFIG_HID_CHICONY=y
+CONFIG_HID_CYPRESS=y
+CONFIG_HID_DRAGONRISE=y
+CONFIG_HID_EZKEY=y
+CONFIG_HID_KYE=y
+CONFIG_HID_GYRATION=y
+CONFIG_HID_TWINHAN=y
+CONFIG_HID_KENSINGTON=y
+CONFIG_HID_LOGITECH=y
+CONFIG_HID_LOGITECH_DJ=m
+CONFIG_HID_MICROSOFT=y
+CONFIG_HID_MONTEREY=y
+CONFIG_HID_NTRIG=y
+CONFIG_HID_ORTEK=y
+CONFIG_HID_PANTHERLORD=y
+CONFIG_HID_PETALYNX=y
+CONFIG_HID_SAMSUNG=y
+CONFIG_HID_SONY=y
+CONFIG_HID_SUNPLUS=y
+CONFIG_HID_GREENASIA=y
+CONFIG_HID_SMARTJOYPLUS=y
+CONFIG_HID_TOPSEED=y
+CONFIG_HID_THRUSTMASTER=y
+CONFIG_HID_ZEROPLUS=y
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_MON=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_UHCI_HCD=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_IDE_DISK=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
+CONFIG_DMADEVICES=y
+CONFIG_AUXDISPLAY=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
+CONFIG_EXT3_FS_POSIX_ACL=y
+CONFIG_EXT3_FS_SECURITY=y
+CONFIG_XFS_FS=m
+CONFIG_XFS_QUOTA=y
+CONFIG_XFS_POSIX_ACL=y
+CONFIG_XFS_RT=y
+CONFIG_QUOTA=y
+CONFIG_QUOTA_NETLINK_INTERFACE=y
+CONFIG_QFMT_V2=y
+CONFIG_AUTOFS4_FS=y
+CONFIG_ISO9660_FS=y
+CONFIG_JOLIET=y
+CONFIG_VFAT_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_NFS_FS=m
+# CONFIG_NFS_V2 is not set
+CONFIG_NFSD=m
+CONFIG_NFSD_V3=y
+CONFIG_NFSD_V3_ACL=y
+CONFIG_CIFS=m
+CONFIG_CIFS_WEAK_PW_HASH=y
+CONFIG_CIFS_XATTR=y
+CONFIG_CIFS_POSIX=y
+# CONFIG_CIFS_DEBUG is not set
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_CODEPAGE_737=m
+CONFIG_NLS_CODEPAGE_775=m
+CONFIG_NLS_CODEPAGE_850=m
+CONFIG_NLS_CODEPAGE_852=m
+CONFIG_NLS_CODEPAGE_855=m
+CONFIG_NLS_CODEPAGE_857=m
+CONFIG_NLS_CODEPAGE_860=m
+CONFIG_NLS_CODEPAGE_861=m
+CONFIG_NLS_CODEPAGE_862=m
+CONFIG_NLS_CODEPAGE_863=m
+CONFIG_NLS_CODEPAGE_864=m
+CONFIG_NLS_CODEPAGE_865=m
+CONFIG_NLS_CODEPAGE_866=m
+CONFIG_NLS_CODEPAGE_869=m
+CONFIG_NLS_CODEPAGE_936=m
+CONFIG_NLS_CODEPAGE_950=m
+CONFIG_NLS_CODEPAGE_932=m
+CONFIG_NLS_CODEPAGE_949=m
+CONFIG_NLS_CODEPAGE_874=m
+CONFIG_NLS_ISO8859_8=m
+CONFIG_NLS_CODEPAGE_1250=y
+CONFIG_NLS_CODEPAGE_1251=m
+CONFIG_NLS_ASCII=m
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_2=m
+CONFIG_NLS_ISO8859_3=m
+CONFIG_NLS_ISO8859_4=m
+CONFIG_NLS_ISO8859_5=m
+CONFIG_NLS_ISO8859_6=m
+CONFIG_NLS_ISO8859_7=m
+CONFIG_NLS_ISO8859_9=m
+CONFIG_NLS_ISO8859_13=m
+CONFIG_NLS_ISO8859_14=m
+CONFIG_NLS_ISO8859_15=m
+CONFIG_NLS_KOI8_R=m
+CONFIG_NLS_KOI8_U=m
+CONFIG_NLS_UTF8=y
+CONFIG_UNUSED_SYMBOLS=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_DEBUG_STACKOVERFLOW=y
+CONFIG_DEBUG_SHIRQ=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_TIMER_STATS=y
+CONFIG_DEBUG_RT_MUTEXES=y
+CONFIG_RT_MUTEX_TESTER=y
+CONFIG_DEBUG_SPINLOCK=y
+CONFIG_DEBUG_MUTEXES=y
+CONFIG_RCU_CPU_STALL_INFO=y
+CONFIG_LATENCYTOP=y
+CONFIG_LKDTM=m
+CONFIG_KEYS=y
+CONFIG_KEYS_DEBUG_PROC_KEYS=y
+CONFIG_CRYPTO_NULL=m
+CONFIG_CRYPTO_TEST=m
+CONFIG_CRYPTO_HMAC=y
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_SHA1=y
+CONFIG_CRYPTO_SHA512=m
+CONFIG_CRYPTO_TGR192=m
+CONFIG_CRYPTO_WP512=m
+CONFIG_CRYPTO_ANUBIS=m
+CONFIG_CRYPTO_BLOWFISH=m
+CONFIG_CRYPTO_CAST5=m
+CONFIG_CRYPTO_CAST6=m
+CONFIG_CRYPTO_DES=y
+CONFIG_CRYPTO_KHAZAD=m
+CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_TEA=m
+CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_DEFLATE=y
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
+CONFIG_CRC_CCITT=m
+CONFIG_CRC_T10DIF=y
+CONFIG_FONTS=y
diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig
new file mode 100644
index 0000000..6952cb5
--- /dev/null
+++ b/arch/parisc/configs/generic-64bit_defconfig
@@ -0,0 +1,350 @@
+CONFIG_LOCALVERSION="-64bit"
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+# CONFIG_UTS_NS is not set
+# CONFIG_IPC_NS is not set
+# CONFIG_PID_NS is not set
+# CONFIG_NET_NS is not set
+CONFIG_RELAY=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_BLK_DEV_INTEGRITY=y
+# CONFIG_IOSCHED_DEADLINE is not set
+CONFIG_PA8X00=y
+CONFIG_MLONGCALLS=y
+CONFIG_64BIT=y
+CONFIG_SMP=y
+# CONFIG_COMPACTION is not set
+CONFIG_HPPB=y
+CONFIG_IOMMU_CCIO=y
+CONFIG_GSC_LASI=y
+CONFIG_GSC_WAX=y
+CONFIG_PCI=y
+CONFIG_PCI_STUB=m
+CONFIG_PCI_IOV=y
+CONFIG_GSC_DINO=y
+CONFIG_PCI_LBA=y
+CONFIG_BINFMT_MISC=m
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=m
+CONFIG_XFRM_SUB_POLICY=y
+CONFIG_XFRM_MIGRATE=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+CONFIG_INET_XFRM_MODE_TRANSPORT=m
+CONFIG_INET_XFRM_MODE_TUNNEL=m
+CONFIG_INET_XFRM_MODE_BEET=m
+CONFIG_INET_LRO=m
+CONFIG_INET_DIAG=m
+CONFIG_NETFILTER=y
+# CONFIG_NETFILTER_ADVANCED is not set
+CONFIG_NETFILTER_NETLINK_LOG=y
+CONFIG_DCB=y
+CONFIG_AF_RXRPC=y
+# CONFIG_WIRELESS is not set
+CONFIG_DEVTMPFS=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_IDE=y
+CONFIG_IDE_GD=m
+CONFIG_IDE_GD_ATAPI=y
+CONFIG_BLK_DEV_IDECD=m
+CONFIG_BLK_DEV_NS87415=y
+CONFIG_BLK_DEV_SIIMAGE=y
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_DEV_SR=y
+CONFIG_SCSI_ISCSI_ATTRS=y
+CONFIG_SCSI_SRP_ATTRS=y
+CONFIG_ISCSI_BOOT_SYSFS=y
+CONFIG_SCSI_MPT2SAS=y
+CONFIG_SCSI_LASI700=m
+CONFIG_SCSI_SYM53C8XX_2=y
+CONFIG_SCSI_ZALON=y
+CONFIG_SCSI_QLA_ISCSI=m
+CONFIG_SCSI_DH=y
+CONFIG_ATA=y
+CONFIG_ATA_GENERIC=y
+CONFIG_MD=y
+CONFIG_MD_LINEAR=m
+CONFIG_MD_RAID0=m
+CONFIG_BLK_DEV_DM=m
+CONFIG_DM_RAID=m
+CONFIG_DM_UEVENT=y
+CONFIG_FUSION=y
+CONFIG_FUSION_SPI=y
+CONFIG_FUSION_SAS=y
+CONFIG_NETDEVICES=y
+CONFIG_DUMMY=m
+CONFIG_MACVLAN=m
+CONFIG_MACVTAP=m
+CONFIG_NETCONSOLE=m
+CONFIG_NETCONSOLE_DYNAMIC=y
+CONFIG_TUN=y
+# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_NET_VENDOR_ADAPTEC is not set
+# CONFIG_NET_VENDOR_ALTEON is not set
+# CONFIG_NET_VENDOR_AMD is not set
+# CONFIG_NET_VENDOR_ARC is not set
+# CONFIG_NET_VENDOR_ATHEROS is not set
+# CONFIG_NET_CADENCE is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_BROCADE is not set
+# CONFIG_NET_VENDOR_CHELSIO is not set
+# CONFIG_NET_VENDOR_CISCO is not set
+CONFIG_NET_TULIP=y
+CONFIG_TULIP=y
+# CONFIG_NET_VENDOR_DLINK is not set
+# CONFIG_NET_VENDOR_EMULEX is not set
+# CONFIG_NET_VENDOR_EXAR is not set
+CONFIG_HP100=m
+CONFIG_E1000=y
+CONFIG_LASI_82596=y
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MELLANOX is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_MYRI is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NVIDIA is not set
+# CONFIG_NET_VENDOR_OKI is not set
+CONFIG_QLA3XXX=m
+CONFIG_QLCNIC=m
+CONFIG_QLGE=m
+# CONFIG_NET_VENDOR_REALTEK is not set
+# CONFIG_NET_VENDOR_RDC is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_SILAN is not set
+# CONFIG_NET_VENDOR_SIS is not set
+# CONFIG_NET_VENDOR_SMSC is not set
+# CONFIG_NET_VENDOR_STMICRO is not set
+# CONFIG_NET_VENDOR_SUN is not set
+# CONFIG_NET_VENDOR_TEHUTI is not set
+# CONFIG_NET_VENDOR_TI is not set
+# CONFIG_NET_VENDOR_VIA is not set
+# CONFIG_NET_VENDOR_WIZNET is not set
+CONFIG_PHYLIB=y
+CONFIG_MARVELL_PHY=m
+CONFIG_DAVICOM_PHY=m
+CONFIG_QSEMI_PHY=m
+CONFIG_LXT_PHY=m
+CONFIG_CICADA_PHY=m
+CONFIG_VITESSE_PHY=m
+CONFIG_SMSC_PHY=m
+CONFIG_BROADCOM_PHY=m
+CONFIG_ICPLUS_PHY=m
+CONFIG_REALTEK_PHY=m
+CONFIG_NATIONAL_PHY=m
+CONFIG_STE10XP=m
+CONFIG_LSI_ET1011C_PHY=m
+CONFIG_MDIO_BITBANG=m
+CONFIG_SLIP=m
+CONFIG_SLIP_COMPRESSED=y
+CONFIG_SLIP_SMART=y
+CONFIG_SLIP_MODE_SLIP6=y
+# CONFIG_WLAN is not set
+CONFIG_INPUT_EVDEV=y
+# CONFIG_KEYBOARD_HIL_OLD is not set
+# CONFIG_KEYBOARD_HIL is not set
+# CONFIG_INPUT_MOUSE is not set
+CONFIG_INPUT_MISC=y
+CONFIG_HP_SDC_RTC=m
+CONFIG_SERIO_SERPORT=m
+CONFIG_HP_SDC=m
+CONFIG_HIL_MLC=m
+CONFIG_SERIO_RAW=m
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
+# CONFIG_LEGACY_PTYS is not set
+CONFIG_NOZOMI=m
+# CONFIG_DEVKMEM is not set
+CONFIG_SERIAL_8250=y
+# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=8
+CONFIG_SERIAL_8250_RUNTIME_UARTS=8
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_MANY_PORTS=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_JSM=m
+CONFIG_HW_RANDOM_TIMERIOMEM=m
+CONFIG_TCG_TPM=m
+CONFIG_TCG_ATMEL=m
+CONFIG_PTP_1588_CLOCK=m
+CONFIG_SENSORS_I5K_AMB=m
+CONFIG_SENSORS_F71882FG=m
+CONFIG_SENSORS_PC87427=m
+CONFIG_SENSORS_VT1211=m
+CONFIG_SENSORS_VT8231=m
+CONFIG_SENSORS_W83627EHF=m
+CONFIG_WATCHDOG=y
+CONFIG_SOFT_WATCHDOG=m
+CONFIG_SSB=m
+CONFIG_SSB_DRIVER_PCICORE=y
+CONFIG_HTC_PASIC3=m
+CONFIG_LPC_SCH=m
+CONFIG_MFD_SM501=m
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=m
+CONFIG_REGULATOR_USERSPACE_CONSUMER=m
+CONFIG_MEDIA_SUPPORT=m
+CONFIG_AGP=y
+CONFIG_AGP_PARISC=y
+CONFIG_DRM=y
+CONFIG_DRM_RADEON=y
+CONFIG_DRM_RADEON_UMS=y
+CONFIG_FIRMWARE_EDID=y
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+# CONFIG_BACKLIGHT_GENERIC is not set
+CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+CONFIG_HID=m
+CONFIG_HIDRAW=y
+CONFIG_HID_DRAGONRISE=m
+CONFIG_DRAGONRISE_FF=y
+CONFIG_HID_KYE=m
+CONFIG_HID_GYRATION=m
+CONFIG_HID_TWINHAN=m
+CONFIG_LOGITECH_FF=y
+CONFIG_LOGIRUMBLEPAD2_FF=y
+CONFIG_HID_NTRIG=m
+CONFIG_HID_PANTHERLORD=m
+CONFIG_PANTHERLORD_FF=y
+CONFIG_HID_PETALYNX=m
+CONFIG_HID_SAMSUNG=m
+CONFIG_HID_SONY=m
+CONFIG_HID_SUNPLUS=m
+CONFIG_HID_GREENASIA=m
+CONFIG_GREENASIA_FF=y
+CONFIG_HID_SMARTJOYPLUS=m
+CONFIG_SMARTJOYPLUS_FF=y
+CONFIG_HID_TOPSEED=m
+CONFIG_HID_THRUSTMASTER=m
+CONFIG_THRUSTMASTER_FF=y
+CONFIG_HID_ZEROPLUS=m
+CONFIG_ZEROPLUS_FF=y
+CONFIG_USB_HID=m
+CONFIG_HID_PID=y
+CONFIG_USB_HIDDEV=y
+CONFIG_USB=y
+CONFIG_USB_DEBUG=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_DYNAMIC_MINORS=y
+CONFIG_USB_MON=m
+CONFIG_USB_WUSB_CBAF=m
+CONFIG_USB_XHCI_HCD=m
+CONFIG_USB_EHCI_HCD=m
+CONFIG_USB_OHCI_HCD=m
+CONFIG_USB_R8A66597_HCD=m
+CONFIG_USB_ACM=m
+CONFIG_USB_PRINTER=m
+CONFIG_USB_WDM=m
+CONFIG_USB_TMC=m
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_ONESHOT=y
+CONFIG_LEDS_TRIGGER_IDE_DISK=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=m
+CONFIG_LEDS_TRIGGER_BACKLIGHT=m
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
+CONFIG_UIO=y
+CONFIG_UIO_PDRV_GENIRQ=m
+CONFIG_UIO_AEC=m
+CONFIG_UIO_SERCOS3=m
+CONFIG_UIO_PCI_GENERIC=m
+CONFIG_STAGING=y
+# CONFIG_NET_VENDOR_SILICOM is not set
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS_POSIX_ACL=y
+CONFIG_EXT3_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_XFS_FS=m
+CONFIG_BTRFS_FS=m
+CONFIG_QUOTA=y
+CONFIG_QUOTA_NETLINK_INTERFACE=y
+CONFIG_QFMT_V2=y
+CONFIG_AUTOFS4_FS=y
+CONFIG_FUSE_FS=y
+CONFIG_CUSE=y
+CONFIG_ISO9660_FS=y
+CONFIG_UDF_FS=y
+CONFIG_VFAT_FS=m
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_CONFIGFS_FS=y
+CONFIG_SYSV_FS=y
+CONFIG_NFS_FS=m
+CONFIG_NFS_V4=m
+CONFIG_NFS_V4_1=y
+CONFIG_NFSD=m
+CONFIG_NFSD_V4=y
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NLS_CODEPAGE_437=m
+CONFIG_NLS_CODEPAGE_850=m
+CONFIG_NLS_CODEPAGE_852=m
+CONFIG_NLS_CODEPAGE_1250=m
+CONFIG_NLS_CODEPAGE_1251=m
+CONFIG_NLS_ASCII=m
+CONFIG_NLS_ISO8859_1=m
+CONFIG_NLS_ISO8859_2=m
+CONFIG_NLS_UTF8=m
+CONFIG_PRINTK_TIME=y
+CONFIG_STRIP_ASM_SYMS=y
+CONFIG_UNUSED_SYMBOLS=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_STACKOVERFLOW=y
+CONFIG_LOCKUP_DETECTOR=y
+CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
+CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
+# CONFIG_SCHED_DEBUG is not set
+CONFIG_TIMER_STATS=y
+CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
+CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_ECB=m
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_MD4=m
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_SHA256=m
+CONFIG_CRYPTO_ARC4=m
+CONFIG_CRYPTO_FCRYPT=m
+CONFIG_CRYPTO_DEFLATE=m
+# CONFIG_CRYPTO_HW is not set
+CONFIG_CRC_CCITT=m
+CONFIG_LIBCRC32C=y
+CONFIG_XZ_DEC_X86=y
+CONFIG_XZ_DEC_POWERPC=y
+CONFIG_XZ_DEC_IA64=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_ARMTHUMB=y
+CONFIG_XZ_DEC_SPARC=y
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From - Thu Nov 08 21:09:30 2018
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To: Alex Ivanov <gnidorah@p0n4ik.tk>
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adding linux parisc mailing list...:

On 07/11/2013 09:46 PM, Helge Deller wrote:
> On 07/10/2013 11:29 PM, Alex Ivanov wrote:
>> 11.07.2013, 01:14, "Matt Turner" <mattst88@gmail.com>:
>>> On Wed, Jul 10, 2013 at 1:19 PM, Alex Ivanov <gnidorah@p0n4ik.tk> wrote:
>>>
>>>>  Thank you so much! Your guess looks to be right. After applying of your
>>>>  patch there was no more KP and X just worked.
>>>
>>> Nice! Does DRI work?
>>
>> Not on my side. Plus i can't visually jump over 8bit depth, although Xorg 
>> states 24bit in it's log.
>> As for DRI, i'm experiencing 
>> "ring test failed (scratch(0x15E4)=0xCAFEDEAD)" with a firegl x3.
> 
> FWIW, I'm seeing the same failure on my FireGL X1:
> 80:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Radeon R300 NG [FireGL X1] (rev 80)
> 
> [drm] radeon: irq initialized.
> [drm] Loading R300 Microcode
> [drm] radeon: ring at 0x0000000060001000
> [drm:r100_ring_test] *ERROR* radeon: ring test failed (scratch(0x15E4)=0xCAFEDEAD)
> [drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22).
> radeon 0000:80:00.0: failed initializing CP (-22).
> radeon 0000:80:00.0: Disabling GPU acceleration
> [drm:r100_cp_fini] *ERROR* Wait for CP idle timeout, shutting down CP.
> [drm] radeon: cp finalized
> [drm] radeon: cp finalized
> 
> I haven't tested X11 yet.
> 
>> Can't figure out why, the ring vaddr (0x0000000060001000) is within the
>> limits of dma32. But the ring test fails. And i'm afraid that just adding a 
>> buffer bounces in places will not help.
> 
> Helge
> 

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From: Hans Henry von Tresckow <hvontres@gmail.com>
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Subject: RP-2470 Available for donation
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We are surplussing an old rp-2470 server at work. I don't know the
exact configuration right now, but would this be of any interest to
anyone here? If not, it is probably going to get recyled soon :(

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From: Jeroen Roovers <jer@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] palo/paloio.c:64: warning: implicit declaration of function
 'memcmp'
Date: Thu, 18 Jul 2013 16:55:39 +0200
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I have been carrying this patch in the Gentoo repository[1] for quite a
while now.

[1]
http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/sys-boot/palo/files/palo-1.18-include.patch?view=log

Add missing include for memcmp.

Signed-off-by: Jeroen Roovers <jer@gentoo.org>

diff --git a/palo/paloio.c b/palo/paloio.c
index 518c6a5..64e8e45 100644
--- a/a/palo/paloio.c
+++ b/b/palo/paloio.c
@@ -7,6 +7,7 @@
  */
 #include <unistd.h>
 #include <stdio.h>
+#include <string.h>
 #include <errno.h>
 #include <sys/types.h>
 #include <sys/stat.h>
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From - Thu Nov 08 21:09:31 2018
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From: Jeroen Roovers <jer@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] palo/palo.c:482:5: /usr/include/bits/fcntl2.h:50:24: error:
 call to '__open_missing_mode' declared with attribute error: open with
 O_CREAT in second argument needs 3 arguments
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In file included from /usr/include/fcntl.h:296:0,
                 from palo.c:16:
In function 'open',
    inlined from 'do_formatted' at palo.c:482:5:
/usr/include/bits/fcntl2.h:50:24: error: call to '__open_missing_mode'
declared with attribute error: open with O_CREAT in second argument
needs 3 arguments

Signed-off-by: Jeroen Roovers <jer@gentoo.org>

diff --git a/palo/palo.c b/palo/palo.c
index 10031fd..fffb7ec 100644
--- a/palo/palo.c
+++ b/palo/palo.c
@@ -484,7 +484,7 @@ do_formatted(int init, int media, const char *medianame, int partition,
            error(14, "bootloader");

        sprintf(badblockfilename, "/tmp/paloblk-%d", getpid());
-       if ((fd = open(badblockfilename, O_RDWR | O_CREAT | O_TRUNC)) < 0) {
+       if ((fd = open(badblockfilename, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR)) < 0) {
            perror(badblockfilename);
            exit(1);
        }
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Subject: Re: [PATCH] palo/palo.c:482:5: /usr/include/bits/fcntl2.h:50:24:
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Hi Jeroen,

On 07/18/2013 05:43 PM, Jeroen Roovers wrote:
> In file included from /usr/include/fcntl.h:296:0,
>                  from palo.c:16:
> In function 'open',
>     inlined from 'do_formatted' at palo.c:482:5:
> /usr/include/bits/fcntl2.h:50:24: error: call to '__open_missing_mode'
> declared with attribute error: open with O_CREAT in second argument
> needs 3 arguments
> 
> Signed-off-by: Jeroen Roovers <jer@gentoo.org>

Thanks for both patches!
I've just pushed both upstream to the palo git tree.

Both changes aren't that huge, so I'm right now not planning to
bump the version number - unless you need it for gentoo...?
Just let me know (or if you have further patches, e.g. gentoo specific files?)

Helge
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From - Thu Nov 08 21:09:31 2018
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From: Jeroen Roovers <jer@gentoo.org>
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Subject: Re: [PATCH] palo/palo.c:482:5: /usr/include/bits/fcntl2.h:50:24:
 error: call to '__open_missing_mode' declared with attribute error: open
 with O_CREAT in second argument needs 3 arguments
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On Sat, 20 Jul 2013 21:53:10 +0200
Helge Deller <deller@gmx.de> wrote:

> Thanks for both patches!
> I've just pushed both upstream to the palo git tree.

Great!

> Both changes aren't that huge, so I'm right now not planning to
> bump the version number - unless you need it for gentoo...?

Both patches are already used in Gentoo, so that's fine.


     jer
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From - Thu Nov 08 21:09:31 2018
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Subject: Re: SCSI Drive Enumeration
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Changing crypto: crc_t10dif from a module to builtin fixed the boot.   
See
http://www.mail-archive.com/linux-crypto@vger.kernel.org/msg09061.html

Dave

On 20-Jul-13, at 7:08 PM, Dave Anglin wrote:

> Hi Helge,
>
> Have you tried 3.11-rc1?  It doesn't boot for me because SCSI drives  
> no longer are enumerated as sda, sdb, ...
>
> ehci-pci: EHCI PCI platform driver
> scsi0 : pata_cmd64x
> scsi1 : pata_cmd64x
> ata1: PATA max UDMA/100 cmd 0xd18 ctl 0xd24 bmdma 0xd00 irq 69
> ata2: DUMMY
> ehci-pci 0000:00:01.2: EHCI Host Controller
> ehci-pci 0000:00:01.2: new USB bus registered, assigned bus number 1
> ehci-pci 0000:00:01.2: irq 68, io mem 0xffffffff80000000
> ehci-pci 0000:00:01.2: USB 2.0 started, EHCI 0.95
> usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
> usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> usb usb1: Product: EHCI Host Controller
> usb usb1: Manufacturer: Linux 3.11.0-rc1+ ehci_hcd
> usb usb1: SerialNumber: 0000:00:01.2
> hub 1-0:1.0: USB hub found
> hub 1-0:1.0: 5 ports detected
> ata1.00: ATAPI: DW-224E, C.0B, max UDMA/33
> ata1.00: configured for UDMA/33
> scsi 0:0:0:0: CD-ROM            TEAC     DW-224E          C.0B PQ: 0  
> ANSI: 5
> usb 1-2: new high-speed USB device number 2 using ehci-pci
> sr0: scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray
> cdrom: Uniform CD-ROM driver Revision: 3.20
> usb 1-2: New USB device found, idVendor=1058, idProduct=0748
> usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=5
> usb 1-2: Product: My Passport 0748
> usb 1-2: Manufacturer: Western Digital
> usb 1-2: SerialNumber: 575836314542325A33383231
> sr 0:0:0:0: Attached scsi generic sg0 type 5
> usb-storage 1-2:1.0: USB Mass Storage device detected
> scsi2 : usb-storage 1-2:1.0
> usbcore: registered new interface driver usb-storage
> tg3 0000:20:02.0 eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI: 
> 66MHz:64-bit) MAC address 00:30:6e:4b:16:4d
> tg3 0000:20:02.0 eth0: attached PHY is 5701 (10/100/1000Base-T  
> Ethernet) (WireSpeed[1], EEE[0])
> tg3 0000:20:02.0 eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0]  
> TSOcap[0]
> tg3 0000:20:02.0 eth0: dma_rwctrl[76ff2d0f] dma_mask[32-bit]
> sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 70
> sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
> sym0: SCSI BUS has been reset.
> scsi3 : sym-2.2.3
> scsi 2:0:0:0: Direct-Access     WD       My Passport 0748 1022 PQ: 0  
> ANSI: 6
> scsi 2:0:0:0: Attached scsi generic sg1 type 0
> scsi 3:0:0:0: Direct-Access     FUJITSU  MAJ3364MC        HP12 PQ: 0  
> ANSI: 2
> scsi target3:0:0: tagged command queuing enabled, command queue  
> depth 16.
> scsi target3:0:0: Beginning Domain Validation
> scsi target3:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
> scsi target3:0:0: Ending Domain Validation
> scsi 3:0:0:0: Attached scsi generic sg2 type 0
> sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 71
> sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
> sym1: SCSI BUS has been reset.
> scsi4 : sym-2.2.3
> scsi 4:0:2:0: Direct-Access     SEAGATE  ST318203LC       HP04 PQ: 0  
> ANSI: 2
> scsi target4:0:2: tagged command queuing enabled, command queue  
> depth 16.
> scsi target4:0:2: Beginning Domain Validation
> scsi target4:0:2: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 15)
> scsi target4:0:2: Domain Validation skipping write tests
> scsi target4:0:2: Ending Domain Validation
> scsi 4:0:2:0: Attached scsi generic sg3 type 0
> Begin: Loading essential drivers ... done.
> Begin: Running /scripts/init-premount ... done.
> Begin: Mounting root file system ... Begin: Running /scripts/local- 
> top ... device-mapper: ioctl: 4.25.0-ioctl (2013-06-26) initialised: dm-devel@redhat.com
> done.
> Begin: Waiting for root file system ... done.
> Gave up waiting for root device.  Common problems:
> - Boot args (cat /proc/cmdline)
>   - Check rootdelay= (did the system wait long enough?)
>   - Check root= (did the system wait for the right device?)
> - Missing modules (cat /proc/modules; ls /dev)
> ALERT!  /dev/sdb5 does not exist.  Dropping to a shell!
> modprobe: module i8042 not found in modules.dep
> modprobe: module uhci-hcd not found in modules.dep
> ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> usbcore: registered new interface driver usbhid
> usbhid: USB HID core driver
>
>
> BusyBox v1.20.2 (Debian 1:1.20.0-8) built-in shell (ash)
> Enter 'help' for a list of built-in commands.
>
> Thoughts?
>
> Dave
>

--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:09:31 2018
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Subject: [PATCH]  parisc: Fix cache routines to ignore vma's with an invalid pfn
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The parisc architecture does not have a pte special bit.  As a result,  
special mappings are handled with the
VM_PFNMAP and VM_MIXEDMAP flags.  VM_MIXEDMAP mappings may or may not  
have a "struct page"
backing.  When pfn_valid() is false, there is no "struct page"  
backing.  Otherwise, they are treated as normal
pages.

The FireGL driver uses the  VM_MIXEDMAP without a backing "struct  
page".  This treatment caused a panic
due to a TLB data miss in update_mmu_cache.  This appeared to be in  
the code generated for page_address().
We were in fact using a very circular bit of code to determine the  
physical address of the PFN in various cache
routines.  This wasn't valid when there was no "struct page" backing.   
The needed address can in fact be determined
simply from the PFN itself without using the "struct page".

The attached patch updates update_mmu_cache(), flush_cache_mm(),  
flush_cache_range() and flush_cache_page()
to check pfn_valid() and to directly compute the PFN physical and  
virtual addresses.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---



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diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 2e65aa5..57876fa 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -71,18 +71,27 @@ flush_cache_all_local(void)
 }
 EXPORT_SYMBOL(flush_cache_all_local);
 
+/* Virtual address of pfn.  */
+#define pfn_va(pfn)	__va(PFN_PHYS(pfn))
+
 void
 update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
 {
-	struct page *page = pte_page(*ptep);
+	unsigned long pfn = pte_pfn(*ptep);
+	struct page *page;
 
-	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
-	    test_bit(PG_dcache_dirty, &page->flags)) {
+	/* We don't have pte special.  As a result, we can be called with
+	   an invalid pfn and we don't need to flush the kernel dcache page.
+	   This occurs with FireGL card in C8000.  */
+	if (!pfn_valid(pfn))
+		return;
 
-		flush_kernel_dcache_page(page);
+	page = pfn_to_page(pfn);
+	if (page_mapping(page) && test_bit(PG_dcache_dirty, &page->flags)) {
+		flush_kernel_dcache_page_addr(pfn_va(pfn));
 		clear_bit(PG_dcache_dirty, &page->flags);
 	} else if (parisc_requires_coherency())
-		flush_kernel_dcache_page(page);
+		flush_kernel_dcache_page_addr(pfn_va(pfn));
 }
 
 void
@@ -518,21 +527,20 @@ void flush_cache_mm(struct mm_struct *mm)
 				     addr += PAGE_SIZE) {
 					pte_t *ptep = get_ptep(pgd, addr);
 					if (ptep != NULL) {
-						pte_t pte = *ptep;
-						__flush_cache_page(vma, addr,
-						  page_to_phys(pte_page(pte)));
+						unsigned long pfn = pte_pfn(*ptep);
+						if (pfn_valid(pfn))
+							__flush_cache_page(vma, addr, PFN_PHYS(pfn));
 					}
 				}
 			}
 		}
-		return;
-	}
-
+	} else {
 #ifdef CONFIG_SMP
-	flush_cache_all();
+		flush_cache_all();
 #else
-	flush_cache_all_local();
+		flush_cache_all_local();
 #endif
+	}
 }
 
 void
@@ -571,9 +579,9 @@ void flush_cache_range(struct vm_area_struct *vma,
 			     addr += PAGE_SIZE) {
 				pte_t *ptep = get_ptep(pgd, addr);
 				if (ptep != NULL) {
-					pte_t pte = *ptep;
-					flush_cache_page(vma,
-					   addr, pte_pfn(pte));
+					unsigned long pfn = pte_pfn(*ptep);
+					if (pfn_valid(pfn))
+						__flush_cache_page(vma, addr, PFN_PHYS(pfn));
 				}
 			}
 		}
@@ -591,9 +599,10 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 {
 	BUG_ON(!vma->vm_mm->context);
 
-	flush_tlb_page(vma, vmaddr);
-	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));

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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH]  parisc: Fix cache routines to ignore vma's with an invalid
 pfn
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To: John David Anglin <dave.anglin@bell.net>
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Hi Dave,

On 07/23/2013 06:27 PM, John David Anglin wrote:
> The parisc architecture does not have a pte special bit.  As a result, special mappings are handled with the
> VM_PFNMAP and VM_MIXEDMAP flags.  VM_MIXEDMAP mappings may or may not have a "struct page"
> backing.  When pfn_valid() is false, there is no "struct page" backing.  Otherwise, they are treated as normal
> pages.
> 
> The FireGL driver uses the  VM_MIXEDMAP without a backing "struct page".  This treatment caused a panic
> due to a TLB data miss in update_mmu_cache.  This appeared to be in the code generated for page_address().
> We were in fact using a very circular bit of code to determine the physical address of the PFN in various cache
> routines.  This wasn't valid when there was no "struct page" backing.  The needed address can in fact be determined
> simply from the PFN itself without using the "struct page".
> 
> The attached patch updates update_mmu_cache(), flush_cache_mm(), flush_cache_range() and flush_cache_page()
> to check pfn_valid() and to directly compute the PFN physical and virtual addresses.

This patch gave lots of checkscript warnings.
Mostly because we now use more than 80 chars/line.

I've restructured the functions with cleaner return/continue code and submitted it into my "for-next" git tree at
https://patchwork.kernel.org/patch/2825923/mbox/

The modified patch is now here:
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=for-next&id=606cd30e0e20806e3566d223223a6cb4e47ec9ea
and attached to this mail.
It's currently only compile-tested.

Helge


--------------090601060802030604010003
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>From patchwork Tue Jul 23 16:27:52 2013
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: parisc: Fix cache routines to ignore vma's with an invalid pfn
From: John David Anglin <dave.anglin@bell.net>
X-Patchwork-Id: 2832084
Message-Id: <BLU0-SMTP618F2A575D86195DC418DD976F0@phx.gbl>
To: linux-parisc List <linux-parisc@vger.kernel.org>
Cc: Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>
Date: Tue, 23 Jul 2013 12:27:52 -0400

The parisc architecture does not have a pte special bit. As a result,
special mappings are handled with the VM_PFNMAP and VM_MIXEDMAP flags.
VM_MIXEDMAP mappings may or may not have a "struct page" backing. When
pfn_valid() is false, there is no "struct page" backing. Otherwise, they
are treated as normal pages.

The FireGL driver uses the VM_MIXEDMAP without a backing "struct page".
This treatment caused a panic due to a TLB data miss in
update_mmu_cache. This appeared to be in the code generated for
page_address(). We were in fact using a very circular bit of code to
determine the physical address of the PFN in various cache routines.
This wasn't valid when there was no "struct page" backing.  The needed
address can in fact be determined simply from the PFN itself without
using the "struct page".

The attached patch updates update_mmu_cache(), flush_cache_mm(),
flush_cache_range() and flush_cache_page() to check pfn_valid() and to
directly compute the PFN physical and virtual addresses.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: <stable@vger.kernel.org> # 3.10

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 2e65aa5..28045e7 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -71,18 +71,27 @@ flush_cache_all_local(void)
 }
 EXPORT_SYMBOL(flush_cache_all_local);
 
+/* Virtual address of pfn.  */
+#define pfn_va(pfn)	__va(PFN_PHYS(pfn))
+
 void
 update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
 {
-	struct page *page = pte_page(*ptep);
+	unsigned long pfn = pte_pfn(*ptep);
+	struct page *page;
 
-	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
-	    test_bit(PG_dcache_dirty, &page->flags)) {
+	/* We don't have pte special.  As a result, we can be called with
+	   an invalid pfn and we don't need to flush the kernel dcache page.
+	   This occurs with FireGL card in C8000.  */
+	if (!pfn_valid(pfn))
+		return;
 
-		flush_kernel_dcache_page(page);
+	page = pfn_to_page(pfn);
+	if (page_mapping(page) && test_bit(PG_dcache_dirty, &page->flags)) {
+		flush_kernel_dcache_page_addr(pfn_va(pfn));
 		clear_bit(PG_dcache_dirty, &page->flags);
 	} else if (parisc_requires_coherency())
-		flush_kernel_dcache_page(page);
+		flush_kernel_dcache_page_addr(pfn_va(pfn));
 }
 
 void
@@ -495,44 +504,42 @@ static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
 
 void flush_cache_mm(struct mm_struct *mm)
 {
+	struct vm_area_struct *vma;
+	pgd_t *pgd;
+
 	/* Flushing the whole cache on each cpu takes forever on
 	   rp3440, etc.  So, avoid it if the mm isn't too big.  */
-	if (mm_total_size(mm) < parisc_cache_flush_threshold) {
-		struct vm_area_struct *vma;
-
-		if (mm->context == mfsp(3)) {
-			for (vma = mm->mmap; vma; vma = vma->vm_next) {
-				flush_user_dcache_range_asm(vma->vm_start,
-					vma->vm_end);
-				if (vma->vm_flags & VM_EXEC)
-					flush_user_icache_range_asm(
-					  vma->vm_start, vma->vm_end);
-			}
-		} else {
-			pgd_t *pgd = mm->pgd;
-
-			for (vma = mm->mmap; vma; vma = vma->vm_next) {
-				unsigned long addr;
-
-				for (addr = vma->vm_start; addr < vma->vm_end;
-				     addr += PAGE_SIZE) {
-					pte_t *ptep = get_ptep(pgd, addr);
-					if (ptep != NULL) {
-						pte_t pte = *ptep;
-						__flush_cache_page(vma, addr,
-						  page_to_phys(pte_page(pte)));
-					}
-				}
-			}
+	if (mm_total_size(mm) >= parisc_cache_flush_threshold) {
+		flush_cache_all();
+		return;
+	}
+
+	if (mm->context == mfsp(3)) {
+		for (vma = mm->mmap; vma; vma = vma->vm_next) {
+			flush_user_dcache_range_asm(vma->vm_start, vma->vm_end);
+			if ((vma->vm_flags & VM_EXEC) == 0)
+				continue;
+			flush_user_icache_range_asm(vma->vm_start, vma->vm_end);
 		}
 		return;
 	}
 
-#ifdef CONFIG_SMP
-	flush_cache_all();
-#else
-	flush_cache_all_local();
-#endif
+	pgd = mm->pgd;
+	for (vma = mm->mmap; vma; vma = vma->vm_next) {
+		unsigned long addr;
+
+		for (addr = vma->vm_start; addr < vma->vm_end;
+		     addr += PAGE_SIZE) {
+			unsigned long pfn;
+			pte_t *ptep = get_ptep(pgd, addr);
+			if (!ptep)
+				continue;
+			pfn = pte_pfn(*ptep);
+			if (!pfn_valid(pfn))
+				continue;
+			__flush_cache_page(vma, addr, PFN_PHYS(pfn));
+		}
+	}
 }
 
 void
@@ -556,33 +563,32 @@ flush_user_icache_range(unsigned long start, unsigned long end)
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
+	unsigned long addr;
+	pgd_t *pgd;
+
 	BUG_ON(!vma->vm_mm->context);
 
-	if ((end - start) < parisc_cache_flush_threshold) {
-		if (vma->vm_mm->context == mfsp(3)) {
-			flush_user_dcache_range_asm(start, end);
-			if (vma->vm_flags & VM_EXEC)
-				flush_user_icache_range_asm(start, end);
-		} else {
-			unsigned long addr;
-			pgd_t *pgd = vma->vm_mm->pgd;
-
-			for (addr = start & PAGE_MASK; addr < end;
-			     addr += PAGE_SIZE) {
-				pte_t *ptep = get_ptep(pgd, addr);
-				if (ptep != NULL) {
-					pte_t pte = *ptep;
-					flush_cache_page(vma,
-					   addr, pte_pfn(pte));
-				}
-			}
-		}
-	} else {
-#ifdef CONFIG_SMP
+	if ((end - start) >= parisc_cache_flush_threshold) {
 		flush_cache_all();
-#else
-		flush_cache_all_local();
-#endif
+		return;
+	}
+
+	if (vma->vm_mm->context == mfsp(3)) {
+		flush_user_dcache_range_asm(start, end);
+		if (vma->vm_flags & VM_EXEC)
+			flush_user_icache_range_asm(start, end);
+		return;
+	}
+
+	pgd = vma->vm_mm->pgd;
+	for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+		unsigned long pfn;
+		pte_t *ptep = get_ptep(pgd, addr);
+		if (!ptep)
+			continue;
+		pfn = pte_pfn(*ptep);
+		if (pfn_valid(pfn))
+			__flush_cache_page(vma, addr, PFN_PHYS(pfn));
 	}
 }
 
@@ -591,9 +597,10 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 {
 	BUG_ON(!vma->vm_mm->context);
 
-	flush_tlb_page(vma, vmaddr);
-	__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));

From - Thu Nov 08 21:09:31 2018
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Subject: Re: [PATCH]  parisc: Fix cache routines to ignore vma's with an invalid pfn
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To: Helge Deller <deller@gmx.de>
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On 23-Jul-13, at 5:52 PM, Helge Deller wrote:

> I've restructured the functions with cleaner return/continue code  
> and submitted it into my "for-next" git tree at
> https://patchwork.kernel.org/patch/2825923/mbox/

Looks fine to me.  I'll test soon.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: Chen Gang <gang.chen@asianux.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Kconfig: use 'PA8X00' as the default choise instead
 of 'PA7000'
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=46or server, 64-bit kernel is widely used and '64BIT' have been alread=
y
as the default option of a server.

So better to use 64-bit kernel as default choise instead of 32-bit
kernel.

Or when use cross-compiler 'hppa64-linux-gnu-gcc' with allmodconfig, it
will report BUILD_BUG_ON:

  arch/parisc/mm/init.c: In function =91mem_init=92:
  arch/parisc/mm/init.c:581:2: error: call to =91__compiletime_assert_5=
81=92 declared with attribute error: BUILD_BUG_ON failed: PTE_ENTRY_SIZ=
E !=3D sizeof(pte_t)


Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 arch/parisc/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index aa399a5..37bdecf 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -111,7 +111,7 @@ menu "Processor type and features"
=20
 choice
 	prompt "Processor type"
-	default PA7000
+	default PA8X00
=20
 config PA7000
 	bool "PA7000/PA7100"
--=20
1.7.7.6
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From: Chen Gang <gang.chen@asianux.com>
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Subject: [Suggestion] parisc: kernel: about section mismatch warning.
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Hello Maintainers:

When building parisc with allmodconfig by 'hppa64-linux-gnu-', I find section mismatch warnings.

I am not quite sure whether they will cause real issue or not, please
help check, thanks.

  LD      arch/parisc/kernel/built-in.o
WARNING: arch/parisc/kernel/built-in.o(.data+0x118): Section mismatch in reference from the variable .L24 to the function .init.text:do_device_inventory()
The variable .L24 references
the function __init do_device_inventory()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console

WARNING: arch/parisc/kernel/built-in.o(.data+0x120): Section mismatch in reference from the variable .L26 to the function .init.text:parisc_pdc_chassis_init()
The variable .L26 references
the function __init parisc_pdc_chassis_init()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console


At least, I am sure it is not the source code issue, is it the cross-
compiler's issue (need change suitable compiler), or just skip them ?

Welcome any suggestions or completions.


Thanks.
--
Chen Gang
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24.07.2013, =D7 3:44, John David Anglin <dave.anglin@bell.net> =CE=C1=D0=
=C9=D3=C1=CC(=C1):

> On 23-Jul-13, at 5:52 PM, Helge Deller wrote:
>=20
>> I've restructured the functions with cleaner return/continue code an=
d submitted it into my "for-next" git tree at
>> https://patchwork.kernel.org/patch/2825923/mbox/
>=20
> Looks fine to me.  I'll test soon.
>=20
> Dave
> --
> John David Anglin	dave.anglin@bell.net
>=20
>=20
>=20
> --
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Thank you both! It behaves normally at my side.--
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Subject: Re: [PATCH] parisc: Kconfig: use 'PA8X00' as the default choise
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On Wed, 2013-07-24 at 16:12 +0800, Chen Gang wrote:
> For server, 64-bit kernel is widely used and '64BIT' have been alread=
y
> as the default option of a server.
>=20
> So better to use 64-bit kernel as default choise instead of 32-bit
> kernel.

I think this is irrelevant since we have defconfig for this.  You
apparent request doesn't match the code below.

> Or when use cross-compiler 'hppa64-linux-gnu-gcc' with allmodconfig, =
it
> will report BUILD_BUG_ON:
>=20
>   arch/parisc/mm/init.c: In function =E2=80=98mem_init=E2=80=99:
>   arch/parisc/mm/init.c:581:2: error: call to =E2=80=98__compiletime_=
assert_581=E2=80=99 declared with attribute error: BUILD_BUG_ON failed:=
 PTE_ENTRY_SIZE !=3D sizeof(pte_t)

This shows you're using a buggy compiler.  PTE_OFFSET_SIZE is generated
as part of the build process, so you need a correct compiler.

> Signed-off-by: Chen Gang <gang.chen@asianux.com>
> ---
>  arch/parisc/Kconfig |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>=20
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index aa399a5..37bdecf 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -111,7 +111,7 @@ menu "Processor type and features"
> =20
>  choice
>  	prompt "Processor type"
> -	default PA7000
> +	default PA8X00

This doesn't require 64 bit: PA8xxx processors can operate happily in 3=
2
bit mode it does make the question appear, since PA7xxx are 32 bit only=
=2E

James


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On Wed, 2013-07-24 at 16:27 +0800, Chen Gang wrote:
> Hello Maintainers:
> 
> When building parisc with allmodconfig by 'hppa64-linux-gnu-', I find section mismatch warnings.
> 
> I am not quite sure whether they will cause real issue or not, please
> help check, thanks.

I think you need to try a new compiler before we start looking at issues
that don't show up in our build.  However, since it doesn't show up in
the parisc build, I don't actually think it's real, since it's a
temporary label in core code.

James


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On 07/24/2013 10:11 PM, James Bottomley wrote:
> On Wed, 2013-07-24 at 16:27 +0800, Chen Gang wrote:
>> Hello Maintainers:
>>
>> When building parisc with allmodconfig by 'hppa64-linux-gnu-', I find section mismatch warnings.
>>
>> I am not quite sure whether they will cause real issue or not, please
>> help check, thanks.
> 
> I think you need to try a new compiler before we start looking at issues
> that don't show up in our build.  However, since it doesn't show up in
> the parisc build, I don't actually think it's real, since it's a
> temporary label in core code.
> 

OK, thanks, I should use a new compiler for it, I will continue.

And welcome any additional suggestions or completions (especially the
information about parisc compiler).


Thanks.
-- 
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Subject: Re: [PATCH] parisc: Kconfig: use 'PA8X00' as the default choise instead
 of 'PA7000'
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On 07/24/2013 10:00 PM, James Bottomley wrote:
>=20
> On Wed, 2013-07-24 at 16:12 +0800, Chen Gang wrote:
>> For server, 64-bit kernel is widely used and '64BIT' have been alrea=
dy
>> as the default option of a server.
>>
>> So better to use 64-bit kernel as default choise instead of 32-bit
>> kernel.
>=20
> I think this is irrelevant since we have defconfig for this.  You
> apparent request doesn't match the code below.
>=20

Hmm... but I still suggest when use 'allmodconfig' let 64-bit as the
default choice (normally 64-bit is the default choice for servers).

>> Or when use cross-compiler 'hppa64-linux-gnu-gcc' with allmodconfig,=
 it
>> will report BUILD_BUG_ON:
>>
>>   arch/parisc/mm/init.c: In function =E2=80=98mem_init=E2=80=99:
>>   arch/parisc/mm/init.c:581:2: error: call to =E2=80=98__compiletime=
_assert_581=E2=80=99 declared with attribute error: BUILD_BUG_ON failed=
: PTE_ENTRY_SIZE !=3D sizeof(pte_t)
>=20
> This shows you're using a buggy compiler.  PTE_OFFSET_SIZE is generat=
ed
> as part of the build process, so you need a correct compiler.
>=20

Hmm... It means the compiler assumes to build 64-bit code (hppa64), but
our configuration is for 32-bit, they are mismatch.

Maybe we can say hppa64-linux-gnu-gcc can not build the 32-bit parisc
code (although it is not precise), but at least, it is not a real bug.

This contents wants to say: when use 'allmodconfig' for a server, we do
not build a 64-bit server.


>> Signed-off-by: Chen Gang <gang.chen@asianux.com>
>> ---
>>  arch/parisc/Kconfig |    2 +-
>>  1 files changed, 1 insertions(+), 1 deletions(-)
>>
>> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
>> index aa399a5..37bdecf 100644
>> --- a/arch/parisc/Kconfig
>> +++ b/arch/parisc/Kconfig
>> @@ -111,7 +111,7 @@ menu "Processor type and features"
>> =20
>>  choice
>>  	prompt "Processor type"
>> -	default PA7000
>> +	default PA8X00
>=20
> This doesn't require 64 bit: PA8xxx processors can operate happily in=
 32
> bit mode it does make the question appear, since PA7xxx are 32 bit on=
ly.
>=20

Yeah, 'PA8X00' can compitable with 32-bit, but it likes 64-bit, the
following config files are for 'PA8X00':

  a500_defconfig: for 64-bit
  c3000_defconfig: for 32-bit
  c8000_defconfig: for 64-bit
  generic-64bit_defconfig: for 64-bit

At least, we can say PA8xxx is a 64-bit processor for parisc, is it
correct ?

And for 'allmodconfig', if let 'PA8X00' as default choice, it will buil=
d
64-bit kernel.


Thanks.
--=20
Chen Gang

--=20
Chen Gang
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From: Joe Perches <joe@perches.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.network,gmane.linux.alsa.devel
Subject: [trivial PATCH] treewide: Fix printks with 0x%#
Date: Thu, 25 Jul 2013 11:53:25 -0700
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Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>, Helge Deller
 <deller@gmx.de>,  John Stultz <john.stultz@linaro.org>, Thomas Gleixner
 <tglx@linutronix.de>, Daniele Venzano <venza@brownhat.org>, Andi Kleen
 <andi@firstfloor.org>, Jaroslav Kysela <perex@perex.cz>, Takashi Iwai
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To: Jiri Kosina <trivial@kernel.org>
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Using 0x%# emits 0x0x.  Only one is necessary.

Signed-off-by: Joe Perches <joe@perches.com>
---
 arch/parisc/kernel/signal.c       | 2 +-
 drivers/clocksource/acpi_pm.c     | 4 ++--
 drivers/net/ethernet/sis/sis900.c | 2 +-
 mm/memory-failure.c               | 2 +-
 sound/pci/ens1370.c               | 2 +-
 sound/pci/via82xx.c               | 2 +-
 6 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 940188d..35c5bf1 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -85,7 +85,7 @@ restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs)
 	err |= __copy_from_user(regs->iaoq, sc->sc_iaoq, sizeof(regs->iaoq));
 	err |= __copy_from_user(regs->iasq, sc->sc_iasq, sizeof(regs->iasq));
 	err |= __get_user(regs->sar, &sc->sc_sar);
-	DBG(2,"restore_sigcontext: iaoq is 0x%#lx / 0x%#lx\n", 
+	DBG(2,"restore_sigcontext: iaoq is %#lx / %#lx\n",
 			regs->iaoq[0],regs->iaoq[1]);
 	DBG(2,"restore_sigcontext: r28 is %ld\n", regs->gr[28]);
 	return err;
diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index 6efe4d1..6eab889 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -200,14 +200,14 @@ static int __init init_acpi_pm_clocksource(void)
 			if ((value2 < value1) && ((value2) < 0xFFF))
 				break;
 			printk(KERN_INFO "PM-Timer had inconsistent results:"
-			       " 0x%#llx, 0x%#llx - aborting.\n",
+			       " %#llx, %#llx - aborting.\n",
 			       value1, value2);
 			pmtmr_ioport = 0;
 			return -EINVAL;
 		}
 		if (i == ACPI_PM_READ_CHECKS) {
 			printk(KERN_INFO "PM-Timer failed consistency check "
-			       " (0x%#llx) - aborting.\n", value1);
+			       " (%#llx) - aborting.\n", value1);
 			pmtmr_ioport = 0;
 			return -ENODEV;
 		}
diff --git a/drivers/net/ethernet/sis/sis900.c b/drivers/net/ethernet/sis/sis900.c
index eb4aea3..6c1e34c 100644
--- a/drivers/net/ethernet/sis/sis900.c
+++ b/drivers/net/ethernet/sis/sis900.c
@@ -1723,7 +1723,7 @@ static irqreturn_t sis900_interrupt(int irq, void *dev_instance)
 
 	if(netif_msg_intr(sis_priv))
 		printk(KERN_DEBUG "%s: exiting interrupt, "
-		       "interrupt status = 0x%#8.8x.\n",
+		       "interrupt status = %#8.8x\n",
 		       net_dev->name, sr32(isr));
 
 	spin_unlock (&sis_priv->lock);
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 09ae111..29d3f38 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1267,7 +1267,7 @@ void memory_failure_queue(unsigned long pfn, int trapno, int flags)
 	if (kfifo_put(&mf_cpu->fifo, &entry))
 		schedule_work_on(smp_processor_id(), &mf_cpu->work);
 	else
-		pr_err("Memory failure: buffer overflow when queuing memory failure at 0x%#lx\n",
+		pr_err("Memory failure: buffer overflow when queuing memory failure at %#lx\n",
 		       pfn);
 	spin_unlock_irqrestore(&mf_cpu->lock, proc_flags);
 	put_cpu_var(memory_failure_cpu);
diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c
index ca8929b..61262f3 100644
--- a/sound/pci/ens1370.c
+++ b/sound/pci/ens1370.c
@@ -1842,7 +1842,7 @@ static int snd_ensoniq_create_gameport(struct ensoniq *ensoniq, int dev)
 
 	default:
 		if (!request_region(io_port, 8, "ens137x: gameport")) {
-			printk(KERN_WARNING "ens137x: gameport io port 0x%#x in use\n",
+			printk(KERN_WARNING "ens137x: gameport io port %#x in use\n",
 			       io_port);
 			return -EBUSY;
 		}
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index 3c511d0..5ae6f04 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -1940,7 +1940,7 @@ static int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legac
 
 	r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
 	if (!r) {
-		printk(KERN_WARNING "via82xx: cannot reserve joystick port 0x%#x\n",
+		printk(KERN_WARNING "via82xx: cannot reserve joystick port %#x\n",
 		       JOYSTICK_ADDR);
 		return -EBUSY;
 	}



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From: Takashi Iwai <tiwai@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.network,gmane.linux.kernel.mm,gmane.linux.alsa.devel
Subject: Re: [trivial PATCH] treewide: Fix printks with 0x%#
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Cc: Jiri Kosina <trivial@kernel.org>,
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To: Joe Perches <joe@perches.com>
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At Thu, 25 Jul 2013 11:53:25 -0700,
Joe Perches wrote:
> 
> 
> Using 0x%# emits 0x0x.  Only one is necessary.
> 
> Signed-off-by: Joe Perches <joe@perches.com>

Acked-by: Takashi Iwai <tiwai@suse.de>


thanks,

Takashi

> ---
>  arch/parisc/kernel/signal.c       | 2 +-
>  drivers/clocksource/acpi_pm.c     | 4 ++--
>  drivers/net/ethernet/sis/sis900.c | 2 +-
>  mm/memory-failure.c               | 2 +-
>  sound/pci/ens1370.c               | 2 +-
>  sound/pci/via82xx.c               | 2 +-
>  6 files changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
> index 940188d..35c5bf1 100644
> --- a/arch/parisc/kernel/signal.c
> +++ b/arch/parisc/kernel/signal.c
> @@ -85,7 +85,7 @@ restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs)
>  	err |= __copy_from_user(regs->iaoq, sc->sc_iaoq, sizeof(regs->iaoq));
>  	err |= __copy_from_user(regs->iasq, sc->sc_iasq, sizeof(regs->iasq));
>  	err |= __get_user(regs->sar, &sc->sc_sar);
> -	DBG(2,"restore_sigcontext: iaoq is 0x%#lx / 0x%#lx\n", 
> +	DBG(2,"restore_sigcontext: iaoq is %#lx / %#lx\n",
>  			regs->iaoq[0],regs->iaoq[1]);
>  	DBG(2,"restore_sigcontext: r28 is %ld\n", regs->gr[28]);
>  	return err;
> diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
> index 6efe4d1..6eab889 100644
> --- a/drivers/clocksource/acpi_pm.c
> +++ b/drivers/clocksource/acpi_pm.c
> @@ -200,14 +200,14 @@ static int __init init_acpi_pm_clocksource(void)
>  			if ((value2 < value1) && ((value2) < 0xFFF))
>  				break;
>  			printk(KERN_INFO "PM-Timer had inconsistent results:"
> -			       " 0x%#llx, 0x%#llx - aborting.\n",
> +			       " %#llx, %#llx - aborting.\n",
>  			       value1, value2);
>  			pmtmr_ioport = 0;
>  			return -EINVAL;
>  		}
>  		if (i == ACPI_PM_READ_CHECKS) {
>  			printk(KERN_INFO "PM-Timer failed consistency check "
> -			       " (0x%#llx) - aborting.\n", value1);
> +			       " (%#llx) - aborting.\n", value1);
>  			pmtmr_ioport = 0;
>  			return -ENODEV;
>  		}
> diff --git a/drivers/net/ethernet/sis/sis900.c b/drivers/net/ethernet/sis/sis900.c
> index eb4aea3..6c1e34c 100644
> --- a/drivers/net/ethernet/sis/sis900.c
> +++ b/drivers/net/ethernet/sis/sis900.c
> @@ -1723,7 +1723,7 @@ static irqreturn_t sis900_interrupt(int irq, void *dev_instance)
>  
>  	if(netif_msg_intr(sis_priv))
>  		printk(KERN_DEBUG "%s: exiting interrupt, "
> -		       "interrupt status = 0x%#8.8x.\n",
> +		       "interrupt status = %#8.8x\n",
>  		       net_dev->name, sr32(isr));
>  
>  	spin_unlock (&sis_priv->lock);
> diff --git a/mm/memory-failure.c b/mm/memory-failure.c
> index 09ae111..29d3f38 100644
> --- a/mm/memory-failure.c
> +++ b/mm/memory-failure.c
> @@ -1267,7 +1267,7 @@ void memory_failure_queue(unsigned long pfn, int trapno, int flags)
>  	if (kfifo_put(&mf_cpu->fifo, &entry))
>  		schedule_work_on(smp_processor_id(), &mf_cpu->work);
>  	else
> -		pr_err("Memory failure: buffer overflow when queuing memory failure at 0x%#lx\n",
> +		pr_err("Memory failure: buffer overflow when queuing memory failure at %#lx\n",
>  		       pfn);
>  	spin_unlock_irqrestore(&mf_cpu->lock, proc_flags);
>  	put_cpu_var(memory_failure_cpu);
> diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c
> index ca8929b..61262f3 100644
> --- a/sound/pci/ens1370.c
> +++ b/sound/pci/ens1370.c
> @@ -1842,7 +1842,7 @@ static int snd_ensoniq_create_gameport(struct ensoniq *ensoniq, int dev)
>  
>  	default:
>  		if (!request_region(io_port, 8, "ens137x: gameport")) {
> -			printk(KERN_WARNING "ens137x: gameport io port 0x%#x in use\n",
> +			printk(KERN_WARNING "ens137x: gameport io port %#x in use\n",
>  			       io_port);
>  			return -EBUSY;
>  		}
> diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
> index 3c511d0..5ae6f04 100644
> --- a/sound/pci/via82xx.c
> +++ b/sound/pci/via82xx.c
> @@ -1940,7 +1940,7 @@ static int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legac
>  
>  	r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
>  	if (!r) {
> -		printk(KERN_WARNING "via82xx: cannot reserve joystick port 0x%#x\n",
> +		printk(KERN_WARNING "via82xx: cannot reserve joystick port %#x\n",
>  		       JOYSTICK_ADDR);
>  		return -EBUSY;
>  	}
> 
> 
> 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Kconfig: use 'PA8X00' as the default choise instead
 of 'PA7000'
Date: Fri, 26 Jul 2013 22:08:54 +0200
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Parisc List <linux-parisc@vger.kernel.org>
To: Chen Gang F T <chen.gang.flying.transformer@gmail.com>
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Hi Chen,

On 07/25/2013 02:37 AM, Chen Gang F T wrote:
> On 07/24/2013 10:00 PM, James Bottomley wrote:
>>
>> On Wed, 2013-07-24 at 16:12 +0800, Chen Gang wrote:
>>> For server, 64-bit kernel is widely used and '64BIT' have been alre=
ady
>>> as the default option of a server.
>>>
>>> So better to use 64-bit kernel as default choise instead of 32-bit
>>> kernel.
>>
>> I think this is irrelevant since we have defconfig for this.

I do have the same opinion.
It's not necessary.

=46urthermore, for a real 64 bit kernel you need to enable
CONFIG_64BIT not CONFIG_PA8X00.

> Hmm... but I still suggest when use 'allmodconfig' let 64-bit as the
> default choice (normally 64-bit is the default choice for servers).

Yeah, but we do support workstations as well.

>>> Or when use cross-compiler 'hppa64-linux-gnu-gcc' with allmodconfig=
, it
>>> will report BUILD_BUG_ON:
>>>
>>>   arch/parisc/mm/init.c: In function =E2=80=98mem_init=E2=80=99:
>>>   arch/parisc/mm/init.c:581:2: error: call to =E2=80=98__compiletim=
e_assert_581=E2=80=99 declared with attribute error: BUILD_BUG_ON faile=
d: PTE_ENTRY_SIZE !=3D sizeof(pte_t)
>>
>> This shows you're using a buggy compiler.  PTE_OFFSET_SIZE is genera=
ted
>> as part of the build process, so you need a correct compiler.
>>
>=20
> Hmm... It means the compiler assumes to build 64-bit code (hppa64), b=
ut
> our configuration is for 32-bit, they are mismatch.
>=20
> Maybe we can say hppa64-linux-gnu-gcc can not build the 32-bit parisc
> code (although it is not precise), but at least, it is not a real bug=
=2E

It's a fact:
hppa64-linux-gnu-gcc can *not* build the 32-bit parisc.
Only hppa-linux-gnu-gcc can build 32bit code.=20


> This contents wants to say: when use 'allmodconfig' for a server, we =
do
> not build a 64-bit server.
>=20
>=20
>>> Signed-off-by: Chen Gang <gang.chen@asianux.com>

Thanks for your patch, but:
NAK.

Helge

>>> ---
>>>  arch/parisc/Kconfig |    2 +-
>>>  1 files changed, 1 insertions(+), 1 deletions(-)
>>>
>>> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
>>> index aa399a5..37bdecf 100644
>>> --- a/arch/parisc/Kconfig
>>> +++ b/arch/parisc/Kconfig
>>> @@ -111,7 +111,7 @@ menu "Processor type and features"
>>> =20
>>>  choice
>>>  	prompt "Processor type"
>>> -	default PA7000
>>> +	default PA8X00
>>
>> This doesn't require 64 bit: PA8xxx processors can operate happily i=
n 32
>> bit mode it does make the question appear, since PA7xxx are 32 bit o=
nly.
>>
>=20
> Yeah, 'PA8X00' can compitable with 32-bit, but it likes 64-bit, the
> following config files are for 'PA8X00':
>=20
>   a500_defconfig: for 64-bit
>   c3000_defconfig: for 32-bit
>   c8000_defconfig: for 64-bit
>   generic-64bit_defconfig: for 64-bit
>=20
> At least, we can say PA8xxx is a 64-bit processor for parisc, is it
> correct ?
>=20
> And for 'allmodconfig', if let 'PA8X00' as default choice, it will bu=
ild
> 64-bit kernel.
>=20
>=20
> Thanks.
>=20

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Subject: [PATCH] parisc: Remove arch/parisc/kernel/sys32.h header
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The KERNEL_SYSCALL define is not used anymore so the header can be  
removed.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---


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diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 940188d..07349b0 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -56,13 +56,6 @@
 #define A(__x)	((unsigned long)(__x))
 
 /*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-#ifdef CONFIG_64BIT
-#include "sys32.h"
-#endif
-
-/*
  * Do a signal return - restore sigcontext.
  */
 
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index 33eca1b..6c6a271 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -34,7 +34,6 @@
 #include <asm/uaccess.h>
 
 #include "signal32.h"
-#include "sys32.h"
 
 #define DEBUG_COMPAT_SIG 0 
 #define DEBUG_COMPAT_SIG_LEVEL 2
diff --git a/arch/parisc/kernel/sys32.h b/arch/parisc/kernel/sys32.h
deleted file mode 100644
index 60dd470..0000000
--- a/arch/parisc/kernel/sys32.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/* 
- *    Copyright (C) 2002 Richard Hirst <rhirst at parisc-linux.org>
- *    Copyright (C) 2003 James Bottomley <jejb at parisc-linux.org>
- *    Copyright (C) 2003 Randolph Chung <tausq with parisc-linux.org>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#ifndef _PARISC64_KERNEL_SYS32_H
-#define _PARISC64_KERNEL_SYS32_H
-
-#include <linux/compat.h>
-
-/* Call a kernel syscall which will use kernel space instead of user
- * space for its copy_to/from_user.
- */
-#define KERNEL_SYSCALL(ret, syscall, args...) \
-{ \
-    mm_segment_t old_fs = get_fs(); \
-    set_fs(KERNEL_DS); \
-    ret = syscall(args); \
-    set_fs (old_fs); \
-}
-
-#endif
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index a134ff4..bb9f3b6 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -42,8 +42,6 @@
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
 
-#include "sys32.h"

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On 07/27/2013 04:08 AM, Helge Deller wrote:
> Hi Chen,
>=20
> On 07/25/2013 02:37 AM, Chen Gang F T wrote:
>> On 07/24/2013 10:00 PM, James Bottomley wrote:
>>>
>>> On Wed, 2013-07-24 at 16:12 +0800, Chen Gang wrote:
>>>> For server, 64-bit kernel is widely used and '64BIT' have been alr=
eady
>>>> as the default option of a server.
>>>>
>>>> So better to use 64-bit kernel as default choise instead of 32-bit
>>>> kernel.
>>>
>>> I think this is irrelevant since we have defconfig for this.
>=20
> I do have the same opinion.
> It's not necessary.
>=20
> Furthermore, for a real 64 bit kernel you need to enable
> CONFIG_64BIT not CONFIG_PA8X00.
>=20

But for "allmodconfig", it can not enable 'CONFIG_64BIT' automatically.

>> Hmm... but I still suggest when use 'allmodconfig' let 64-bit as the
>> default choice (normally 64-bit is the default choice for servers).
>=20
> Yeah, but we do support workstations as well.
>=20

OH, thanks, I really don't know about it (today I know :-) ), in my
original memory, parisc is mainly for server and well known by many mem=
bers.

As far as I know, we often set mainly used item as default choice, if
have several mainly used item, need set general or compatible item as
default choice.

If 'PA8X00' is our mainly used item (only 'PA8X00' support 64-bit), I
still suggest to set it as default choice. Or when 'allmodconfig' works
for a server, finds 'CONFIG_64BIT' unset, it really wonders "Why ?"

>>>> Or when use cross-compiler 'hppa64-linux-gnu-gcc' with allmodconfi=
g, it
>>>> will report BUILD_BUG_ON:
>>>>
>>>>   arch/parisc/mm/init.c: In function =A1=AEmem_init=A1=AF:
>>>>   arch/parisc/mm/init.c:581:2: error: call to =A1=AE__compiletime_=
assert_581=A1=AF declared with attribute error: BUILD_BUG_ON failed: PT=
E_ENTRY_SIZE !=3D sizeof(pte_t)
>>>
>>> This shows you're using a buggy compiler.  PTE_OFFSET_SIZE is gener=
ated
>>> as part of the build process, so you need a correct compiler.
>>>
>>
>> Hmm... It means the compiler assumes to build 64-bit code (hppa64), =
but
>> our configuration is for 32-bit, they are mismatch.
>>
>> Maybe we can say hppa64-linux-gnu-gcc can not build the 32-bit paris=
c
>> code (although it is not precise), but at least, it is not a real bu=
g.
>=20
> It's a fact:
> hppa64-linux-gnu-gcc can *not* build the 32-bit parisc.
> Only hppa-linux-gnu-gcc can build 32bit code.=20
>=20
>=20

Thank you for your confirmation.

I should build hppa-linux-gnu-gcc cross-compiler firstly.

Hmm... I try to finish it within this week (but not quite sure), but at
least I should finish it within next month (2013-08-31).

Welcome any additional suggestions or completions (especially the
related information for parisc cross-compiler).

>> This contents wants to say: when use 'allmodconfig' for a server, we=
 do
>> not build a 64-bit server.
>>
>>
>>>> Signed-off-by: Chen Gang <gang.chen@asianux.com>
>=20
> Thanks for your patch, but:
> NAK.
>=20

OK, I can understand.

Thank you too.

> Helge
>=20
>>>> ---
>>>>  arch/parisc/Kconfig |    2 +-
>>>>  1 files changed, 1 insertions(+), 1 deletions(-)
>>>>
>>>> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
>>>> index aa399a5..37bdecf 100644
>>>> --- a/arch/parisc/Kconfig
>>>> +++ b/arch/parisc/Kconfig
>>>> @@ -111,7 +111,7 @@ menu "Processor type and features"
>>>> =20
>>>>  choice
>>>>  	prompt "Processor type"
>>>> -	default PA7000
>>>> +	default PA8X00
>>>
>>> This doesn't require 64 bit: PA8xxx processors can operate happily =
in 32
>>> bit mode it does make the question appear, since PA7xxx are 32 bit =
only.
>>>
>>
>> Yeah, 'PA8X00' can compitable with 32-bit, but it likes 64-bit, the
>> following config files are for 'PA8X00':
>>
>>   a500_defconfig: for 64-bit
>>   c3000_defconfig: for 32-bit
>>   c8000_defconfig: for 64-bit
>>   generic-64bit_defconfig: for 64-bit
>>
>> At least, we can say PA8xxx is a 64-bit processor for parisc, is it
>> correct ?
>>
>> And for 'allmodconfig', if let 'PA8X00' as default choice, it will b=
uild
>> 64-bit kernel.
>>
>>
>> Thanks.
>>
>=20


--=20
Chen Gang

--=20
Chen Gang
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From: Chen Gang <gang.chen@asianux.com>
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Subject: [Suggestion] parisc: about the warnings "unsigned expression < 0
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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Hello Maintainers:

Are the warnings real issue (I guess so, but don't know how to fix) ?

Please help check, thanks.

The cross compiler is built from (gcc-4.9.0 and binutils-2.23.2 with
'hppa-gchen-linux'), the related warnings (for 'allmodconfig'):

In file included from arch/parisc/math-emu/fmpyfadd.c:50:0:
arch/parisc/math-emu/fmpyfadd.c: In function 'dbl_fmpyfadd':
arch/parisc/math-emu/dbl_float.h:755:30: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
  if ((unsigned int)(src1dstD += (src2D)) < (unsigned int)(src2D)) { \
                              ^
arch/parisc/math-emu/fmpyfadd.c:394:4: note: in expansion of macro 'Fourword_add'
    Fourword_add(tmpresp1, tmpresp2, tmpresp3, tmpresp4,
    ^
arch/parisc/math-emu/dbl_float.h:765:33: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
     if ((unsigned int)(src1dstC += (src2C)) <   \
   
                              ^
:-)

Thanks.
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After use own built cross compiler (gcc-4.9.0, binutils-2.23.2 with
'hppa64-gchen-linux'), no the related warnings any more.

The original compiler which I used ('hppa64-linux-gnu') is incorrect.

:-)

Thanks.

On 07/25/2013 07:58 AM, Chen Gang F T wrote:
> On 07/24/2013 10:11 PM, James Bottomley wrote:
>> On Wed, 2013-07-24 at 16:27 +0800, Chen Gang wrote:
>>> Hello Maintainers:
>>>
>>> When building parisc with allmodconfig by 'hppa64-linux-gnu-', I find section mismatch warnings.
>>>
>>> I am not quite sure whether they will cause real issue or not, please
>>> help check, thanks.
>>
>> I think you need to try a new compiler before we start looking at issues
>> that don't show up in our build.  However, since it doesn't show up in
>> the parisc build, I don't actually think it's real, since it's a
>> temporary label in core code.
>>
> 
> OK, thanks, I should use a new compiler for it, I will continue.
> 
> And welcome any additional suggestions or completions (especially the
> information about parisc compiler).
> 
> 
> Thanks.
> 


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On 29-Jul-13, at 4:49 AM, Chen Gang wrote:

> After use own built cross compiler (gcc-4.9.0, binutils-2.23.2 with
> 'hppa64-gchen-linux'), no the related warnings any more.
>
> The original compiler which I used ('hppa64-linux-gnu') is incorrect.

I haven't seen the warning with any recent compiler and possibly your  
compiler
selection versus CONFIG_64BIT was wrong.  What does 'hppa64-linux-gnu - 
v'
show?

gcc-4.9.0 is not released and any particular snapshot may be buggy.   
Suggest using
4.8 branch.

Dave
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On 07/29/2013 03:47 PM, John David Anglin wrote:
> On 29-Jul-13, at 4:49 AM, Chen Gang wrote:
> 
>> After use own built cross compiler (gcc-4.9.0, binutils-2.23.2 with
>> 'hppa64-gchen-linux'), no the related warnings any more.
>>
>> The original compiler which I used ('hppa64-linux-gnu') is incorrect.
> 
> I haven't seen the warning with any recent compiler and possibly your compiler
> selection versus CONFIG_64BIT was wrong.  What does 'hppa64-linux-gnu -v'
> show?
> 
> gcc-4.9.0 is not released and any particular snapshot may be buggy.  Suggest using
> 4.8 branch.

Hi Chen,

I'm using the prebuilt cross-gcc package from Fedora (since my x86_64 machines run Fedora):
https://koji.fedoraproject.org/koji/packageinfo?packageID=13624 (cross-gcc)
https://koji.fedoraproject.org/koji/packageinfo?packageID=13623 (cross-binutils)

If you use debian/ubuntu you could use "alien" to convert it to a debian/ubuntu package.

Helge
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The following kernel packages are now in the parisc-linux.org archive:

-rw-r--r--   1 deller   ftpadmin 19931220 Jul 29 22:01 linux- 
image-3.10-1-parisc-smp_3.10.3-1_hppa.deb
-rw-r--r--   1 deller   ftpadmin 21374850 Jul 29 22:01 linux- 
image-3.10-1-parisc64-smp_3.10.3-1_hppa.deb
-rw-r--r--   1 deller   ftpadmin 20766562 Jul 29 22:01 linux- 
image-3.10-1-parisc64_3.10.3-1_hppa.deb
-rw-r--r--   1 deller   ftpadmin 19290152 Jul 29 22:01 linux- 
image-3.10-1-parisc_3.10.3-1_hppa.deb

Dave
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From: Chen Gang <gang.chen@asianux.com>
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On 07/29/2013 09:47 PM, John David Anglin wrote:
> On 29-Jul-13, at 4:49 AM, Chen Gang wrote:
> 
>> After use own built cross compiler (gcc-4.9.0, binutils-2.23.2 with
>> 'hppa64-gchen-linux'), no the related warnings any more.
>>
>> The original compiler which I used ('hppa64-linux-gnu') is incorrect.
> 
> I haven't seen the warning with any recent compiler and possibly your
> compiler
> selection versus CONFIG_64BIT was wrong.  What does 'hppa64-linux-gnu -v'
> show?
> 

The incorrect compiler's information.

[root@dhcp122 linux-next]# rpm -qf /usr/bin/hppa64-linux-gnu-gcc
gcc-hppa64-linux-gnu-4.7.1-0.1.20120606.fc17.x86_64
[root@dhcp122 linux-next]# hppa64-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=hppa64-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/hppa64-linux-gnu/4.7.1/lto-wrapper
Target: hppa64-linux-gnu
Configured with: ../gcc-4.7.1-RC-20120606/configure --disable-dependency-tracking --disable-silent-rules --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/var/lib --mandir=/usr/share/man --infodir=/usr/share/info --build=x86_64-redhat-linux-gnu --host=x86_64-redhat-linux-gnu --target=hppa64-linux-gnu --enable-targets=all --program-prefix=hppa64-linux-gnu- --enable-languages=c --without-headers --enable-sjlj-exceptions --with-system-libunwind --disable-nls --disable-threads --disable-shared --disable-libmudflap --disable-libssp --disable-libgomp --disable-libquadmath --disable-gold --disable-decimal-float --enable-checking= --enable-gnu-uniqu
 e-object --enable-linker-build-id --disable-plugin --enable-nls --with-system-zlib --with-bugurl=http://bugzilla.redhat.com/bugzilla/ --enable-obsolete
Thread model: single
gcc version 4.7.1 20120606 (Red Hat 4.7.1-0.1.20120606) (GCC) 


> gcc-4.9.0 is not released and any particular snapshot may be buggy. 
> Suggest using
> 4.8 branch.
> 

gcc-4.9.0 with binutil-2.23.2 for 'hppa64-linux' is correct for parisc
with 'CONFIG_64BIT' enabled.

I intend to use gcc-4.9.0, (I want to find more issues not only for
kernel, but also for gcc, so I can have more chances to provide my
contributions for both of them)

;-)

> Dave
> -- 
> John David Anglin    dave.anglin@bell.net
> 
> 
> 
> 
> 

Thanks.
-- 
Chen Gang
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.openipmi
Subject: [PATCH] BMC support for PARISC machines
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The last line of PARISC machines (C8000, RP34x0, etc.) have a BMC for
controlling temperature, fan speed and other stuff. The BMC is connected
via a special bus and listed in the firmware device tree. This change
adds support for these BMCs to the IPMI driver.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---

This is the second try to get this change integrated. If you see
any problems with this patch, please give me hints how to improve
this patch.


 drivers/char/ipmi/ipmi_si_intf.c |   77 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index af4b23f..b017b8a 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -71,6 +71,11 @@
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 
+#ifdef CONFIG_PARISC
+#include <asm/hardware.h>	/* for register_parisc_driver() stuff */
+#include <asm/parisc-device.h>
+#endif
+
 #define PFX "ipmi_si: "
 
 /* Measure times between events in the driver. */
@@ -298,6 +303,9 @@ static int pci_registered;
 #ifdef CONFIG_ACPI
 static int pnp_registered;
 #endif
+#ifdef CONFIG_PARISC
+static int parisc_registered;
+#endif
 
 static unsigned int kipmid_max_busy_us[SI_MAX_PARMS];
 static int num_max_busy_us;
@@ -2697,6 +2705,64 @@ static struct platform_driver ipmi_driver = {
 	.remove		= ipmi_remove,
 };
 
+#ifdef CONFIG_PARISC
+static int ipmi_parisc_probe(struct parisc_device *dev)
+{
+	struct smi_info *info;
+
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
+
+	if (!info) {
+		dev_err(&dev->dev,
+			"could not allocate memory for PARISC probe\n");
+		return -ENOMEM;
+	}
+
+	info->si_type		= SI_KCS;
+	info->addr_source	= SI_DEVICETREE;
+	info->io_setup		= mem_setup;
+	info->io.addr_type	= IPMI_MEM_ADDR_SPACE;
+	info->io.addr_data	= dev->hpa.start;
+	info->io.regsize	= 1;
+	info->io.regspacing	= 1;
+	info->io.regshift	= 0;
+	info->irq		= 0; /* no interrupt */
+	info->irq_setup		= NULL;
+	info->dev		= &dev->dev;
+
+	dev_dbg(&dev->dev, "addr 0x%lx regsize %d spacing %d irq %d\n",
+		info->io.addr_data, info->io.regsize, info->io.regspacing,
+		info->irq);
+
+	dev_set_drvdata(&dev->dev, info);
+
+	if (add_smi(info)) {
+		kfree(info);
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+static int ipmi_parisc_remove(struct parisc_device *dev)
+{
+	cleanup_one_si(dev_get_drvdata(&dev->dev));
+	return 0;
+}
+
+static struct parisc_device_id ipmi_parisc_tbl[] = {
+	{ HPHW_MC, HVERSION_REV_ANY_ID, 0x004, 0xC0 },
+	{ 0, }
+};
+
+static struct parisc_driver ipmi_parisc_driver = {
+	.name =		"ipmi",
+	.id_table =	ipmi_parisc_tbl,
+	.probe =	ipmi_parisc_probe,
+	.remove =	ipmi_parisc_remove,
+};
+#endif /* CONFIG_PARISC */
+
 static int wait_for_msg_done(struct smi_info *smi_info)
 {
 	enum si_sm_result     smi_result;
@@ -3462,6 +3528,13 @@ static int init_ipmi_si(void)
 		spmi_find_bmc();
 #endif
 
+#ifdef CONFIG_PARISC
+	register_parisc_driver(&ipmi_parisc_driver);
+	parisc_registered = 1;
+	/* poking PC IO addresses will crash machine, don't do it */
+	si_trydefaults = 0;
+#endif
+
 	/* We prefer devices with interrupts, but in the case of a machine
 	   with multiple BMCs we assume that there will be several instances
 	   of a given type so if we succeed in registering a type then also
@@ -3608,6 +3681,10 @@ static void cleanup_ipmi_si(void)
 	if (pnp_registered)
 		pnp_unregister_driver(&ipmi_pnp_driver);
 #endif
+#ifdef CONFIG_PARISC
+	if (parisc_registered)
+		unregister_parisc_driver(&ipmi_parisc_driver);
+#endif
 
 	platform_driver_unregister(&ipmi_driver);
 
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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We can't use dev->mod_index for selecting the interrupt routing entry,
because it's not an index into interrupt routing table. It will be even
wrong on a machine with 2 CPUs (4 cores). But all needed information is
contained in the PAT entries for the serial ports. mod[0] contains the iosapic
address and mod_info has some indications for the interrupt input (at least
it looks like it). This patch implements the searching for the right iosapic
and uses this interrupt input information.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---

 drivers/char/ipmi/ipmi_si_intf.c |   78 ++++++++++++++++++++++++++++++++++++++
 arch/parisc/include/asm/parisc-device.h |    1 +
 arch/parisc/kernel/inventory.c          |    1 +
 drivers/parisc/iosapic.c                |   40 +++++++++++++++++++++----------
 drivers/tty/serial/8250/8250_gsc.c      |    4 ++--
 4 files changed, 32 insertions(+), 14 deletions(-)

diff --git a/arch/parisc/include/asm/parisc-device.h b/arch/parisc/include/asm/parisc-device.h
index 9afdad6..b1d8c9d 100644
--- a/arch/parisc/include/asm/parisc-device.h
+++ b/arch/parisc/include/asm/parisc-device.h
@@ -23,6 +23,7 @@ struct parisc_device {
 	/* generic info returned from pdc_pat_cell_module() */
 	unsigned long	mod_info;	/* PAT specific - Misc Module info */
 	unsigned long	pmod_loc;	/* physical Module location */
+	unsigned long	mod0;
 #endif
 	u64		dma_mask;	/* DMA mask for I/O */
 	struct device 	dev;
diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index 3295ef4..f0b6722 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -211,6 +211,7 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 	/* REVISIT: who is the consumer of this? not sure yet... */
 	dev->mod_info = pa_pdc_cell->mod_info;	/* pass to PAT_GET_ENTITY() */
 	dev->pmod_loc = pa_pdc_cell->mod_location;
+	dev->mod0 = pa_pdc_cell->mod[0];
 
 	register_parisc_device(dev);	/* advertise device */
 
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index e79e006..c520d8e 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -811,18 +811,28 @@ int iosapic_fixup_irq(void *isi_obj, struct pci_dev *pcidev)
 	return pcidev->irq;
 }
 
-static struct iosapic_info *first_isi = NULL;
+static struct iosapic_info *iosapic_list;
 
 #ifdef CONFIG_64BIT
-int iosapic_serial_irq(int num)
+int iosapic_serial_irq(struct parisc_device *dev)
 {
-	struct iosapic_info *isi = first_isi;
-	struct irt_entry *irte = NULL;  /* only used if PAT PDC */
+	struct iosapic_info *isi;
+	struct irt_entry *irte;
 	struct vector_info *vi;
-	int isi_line;	/* line used by device */
-
+	int cnt;
+	int intin;
+	
+	intin = (dev->mod_info >> 24) & 15;
+	
 	/* lookup IRT entry for isi/slot/pin set */
-	irte = &irt_cell[num];
+	for (cnt = 0; cnt < irt_num_entry; cnt++) {
+		irte = &irt_cell[cnt];
+		if (COMPARE_IRTE_ADDR(irte, dev->mod0) &&
+		    irte->dest_iosapic_intin == intin)
+			break;
+	}
+	if (cnt >= irt_num_entry)
+		return 0; /* no irq found, force polling */
 
 	DBG_IRT("iosapic_serial_irq(): irte %p %x %x %x %x %x %x %x %x\n",
 		irte,
@@ -834,11 +844,17 @@ int iosapic_serial_irq(int num)
 		irte->src_seg_id,
 		irte->dest_iosapic_intin,
 		(u32) irte->dest_iosapic_addr);
-	isi_line = irte->dest_iosapic_intin;
+	
+	/* search for iosapic */
+	for (isi = iosapic_list; isi; isi = isi->isi_next)
+		if (isi->isi_hpa == dev->mod0)
+			break;
+	if (!isi)
+		return 0; /* no iosapic found, force polling */
 
 	/* get vector info for this input line */
-	vi = isi->isi_vector + isi_line;
-	DBG_IRT("iosapic_serial_irq:  line %d vi 0x%p\n", isi_line, vi);
+	vi = isi->isi_vector + intin;
+	DBG_IRT("iosapic_serial_irq:  line %d vi 0x%p\n", iosapic_intin, vi);
 
 	/* If this IRQ line has already been setup, skip it */
 	if (vi->irte)
@@ -941,8 +957,8 @@ void *iosapic_register(unsigned long hpa)
 		vip->irqline = (unsigned char) cnt;
 		vip->iosapic = isi;
 	}
-	if (!first_isi)
-		first_isi = isi;
+	isi->isi_next = iosapic_list;
+	iosapic_list = isi;
 	return isi;
 }
 
diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/8250/8250_gsc.c
index bb91b47..694c8bd 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -31,9 +31,9 @@ static int __init serial_init_chip(struct parisc_device *dev)
 	int err;
 
 #ifdef CONFIG_64BIT
-	extern int iosapic_serial_irq(int cellnum);
+	extern int iosapic_serial_irq(struct parisc_device *dev);
 	if (!dev->irq && (dev->id.sversion == 0xad))
-		dev->irq = iosapic_serial_irq(dev->mod_index-1);
+		dev->irq = iosapic_serial_irq(dev);
 #endif
 
 	if (!dev->irq) {
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From - Thu Nov 08 21:09:33 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.openipmi
Subject: Re: [PATCH] BMC support for PARISC machines
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To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Thomas Bogendoerfer wrote:
> The last line of PARISC machines (C8000, RP34x0, etc.) have a BMC for
> controlling temperature, fan speed and other stuff. The BMC is connected
> via a special bus and listed in the firmware device tree. This change
> adds support for these BMCs to the IPMI driver.
> 
> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> ---
> 
> This is the second try to get this change integrated. If you see
> any problems with this patch, please give me hints how to improve
> this patch.
> 
> 
>  drivers/char/ipmi/ipmi_si_intf.c |   77
> ++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+)
> 
> diff --git a/drivers/char/ipmi/ipmi_si_intf.c
> b/drivers/char/ipmi/ipmi_si_intf.c index af4b23f..b017b8a 100644
> --- a/drivers/char/ipmi/ipmi_si_intf.c
> +++ b/drivers/char/ipmi/ipmi_si_intf.c
> @@ -71,6 +71,11 @@
>  #include <linux/of_address.h>
>  #include <linux/of_irq.h>
> 
> +#ifdef CONFIG_PARISC
> +#include <asm/hardware.h>	/* for register_parisc_driver() stuff */
> +#include <asm/parisc-device.h>
> +#endif
> +
>  #define PFX "ipmi_si: "
> 
>  /* Measure times between events in the driver. */
> @@ -298,6 +303,9 @@ static int pci_registered;
>  #ifdef CONFIG_ACPI
>  static int pnp_registered;
>  #endif
> +#ifdef CONFIG_PARISC
> +static int parisc_registered;
> +#endif
>  static unsigned int kipmid_max_busy_us[SI_MAX_PARMS];
>  static int num_max_busy_us;

Can be bool

> @@ -2697,6 +2705,64 @@ static struct platform_driver ipmi_driver = {
>  	.remove		= ipmi_remove,
>  };
> 
> +#ifdef CONFIG_PARISC
> +static int ipmi_parisc_probe(struct parisc_device *dev)
> +{
> +	struct smi_info *info;
> +
> +	info = kzalloc(sizeof(*info), GFP_KERNEL);
> +
> +	if (!info) {
> +		dev_err(&dev->dev,
> +			"could not allocate memory for PARISC probe\n");
> +		return -ENOMEM;
> +	}
> +
> +	info->si_type		= SI_KCS;
> +	info->addr_source	= SI_DEVICETREE;
> +	info->io_setup		= mem_setup;
> +	info->io.addr_type	= IPMI_MEM_ADDR_SPACE;
> +	info->io.addr_data	= dev->hpa.start;
> +	info->io.regsize	= 1;
> +	info->io.regspacing	= 1;
> +	info->io.regshift	= 0;
> +	info->irq		= 0; /* no interrupt */
> +	info->irq_setup		= NULL;
> +	info->dev		= &dev->dev;
> +
> +	dev_dbg(&dev->dev, "addr 0x%lx regsize %d spacing %d irq %d\n",
> +		info->io.addr_data, info->io.regsize, info->io.regspacing,
> +		info->irq);

Printing regsize, regspacing, and IRQ here is kind of pointless as they have 
fixed values, no?

> +	dev_set_drvdata(&dev->dev, info);
> +
> +	if (add_smi(info)) {
> +		kfree(info);
> +		return -EBUSY;
> +	}

add_smi() will already return an error code AFAICS. So just forward that.

Regards,

Eike
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From - Thu Nov 08 21:09:33 2018
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.openipmi
Subject: [PATCH v2] BMC support for PARISC machines
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The last line of PARISC machines (C8000, RP34x0, etc.) have a BMC for
controlling temperature, fan speed and other stuff. The BMC is connected
via a special bus and listed in the firmware device tree. This change
adds support for these BMCs to the IPMI driver.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---

v2: Fixed SMP problem by using smi_alloc_info() to get spinlock initialized
    correctly

This is the second try to get this change integrated. If you see
any problems with this patch, please give me hints how to improve
this patch.


 drivers/char/ipmi/ipmi_si_intf.c |   75 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index af4b23f..1ea4201 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -71,6 +71,11 @@
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 
+#ifdef CONFIG_PARISC
+#include <asm/hardware.h>	/* for register_parisc_driver() stuff */
+#include <asm/parisc-device.h>
+#endif
+
 #define PFX "ipmi_si: "
 
 /* Measure times between events in the driver. */
@@ -298,6 +303,9 @@ static int pci_registered;
 #ifdef CONFIG_ACPI
 static int pnp_registered;
 #endif
+#ifdef CONFIG_PARISC
+static int parisc_registered;
+#endif
 
 static unsigned int kipmid_max_busy_us[SI_MAX_PARMS];
 static int num_max_busy_us;
@@ -2697,6 +2705,62 @@ static struct platform_driver ipmi_driver = {
 	.remove		= ipmi_remove,
 };
 
+#ifdef CONFIG_PARISC
+static int ipmi_parisc_probe(struct parisc_device *dev)
+{
+	struct smi_info *info;
+
+	info = smi_info_alloc();
+
+	if (!info) {
+		dev_err(&dev->dev,
+			"could not allocate memory for PARISC probe\n");
+		return -ENOMEM;
+	}
+
+	info->si_type		= SI_KCS;
+	info->addr_source	= SI_DEVICETREE;
+	info->io_setup		= mem_setup;
+	info->io.addr_type	= IPMI_MEM_ADDR_SPACE;
+	info->io.addr_data	= dev->hpa.start;
+	info->io.regsize	= 1;
+	info->io.regspacing	= 1;
+	info->io.regshift	= 0;
+	info->irq		= 0; /* no interrupt */
+	info->irq_setup		= NULL;
+	info->dev		= &dev->dev;
+
+	dev_dbg(&dev->dev, "addr 0x%lx\n", info->io.addr_data);
+
+	dev_set_drvdata(&dev->dev, info);
+
+	if (add_smi(info)) {
+		kfree(info);
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+static int ipmi_parisc_remove(struct parisc_device *dev)
+{
+	cleanup_one_si(dev_get_drvdata(&dev->dev));
+	return 0;
+}
+
+static struct parisc_device_id ipmi_parisc_tbl[] = {
+	{ HPHW_MC, HVERSION_REV_ANY_ID, 0x004, 0xC0 },
+	{ 0, }
+};
+
+static struct parisc_driver ipmi_parisc_driver = {
+	.name =		"ipmi",
+	.id_table =	ipmi_parisc_tbl,
+	.probe =	ipmi_parisc_probe,
+	.remove =	ipmi_parisc_remove,
+};
+#endif /* CONFIG_PARISC */
+
 static int wait_for_msg_done(struct smi_info *smi_info)
 {
 	enum si_sm_result     smi_result;
@@ -3462,6 +3526,13 @@ static int init_ipmi_si(void)
 		spmi_find_bmc();
 #endif
 
+#ifdef CONFIG_PARISC
+	register_parisc_driver(&ipmi_parisc_driver);
+	parisc_registered = 1;
+	/* poking PC IO addresses will crash machine, don't do it */
+	si_trydefaults = 0;
+#endif
+
 	/* We prefer devices with interrupts, but in the case of a machine
 	   with multiple BMCs we assume that there will be several instances
 	   of a given type so if we succeed in registering a type then also
@@ -3608,6 +3679,10 @@ static void cleanup_ipmi_si(void)
 	if (pnp_registered)
 		pnp_unregister_driver(&ipmi_pnp_driver);
 #endif
+#ifdef CONFIG_PARISC
+	if (parisc_registered)
+		unregister_parisc_driver(&ipmi_parisc_driver);
+#endif
 
 	platform_driver_unregister(&ipmi_driver);
 
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I tried 3.11-rc3 yesterday on my RP3440. It works, but has acquired a 
new warning during Gentoo emerge cycle:
[  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
[  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
[  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
[  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
[  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
[ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
[ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
[ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
[ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
[ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest

There is no file named conftest present after emerge, so it must have 
been some temporary program.

-- 
Meelis Roos (mroos@linux.ee)
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On Tue, Jul 30, 2013 at 2:06 PM, Meelis Roos <mroos@linux.ee> wrote:
> There is no file named conftest present after emerge, so it must have
> been some temporary program.

conftest is generated many times during a ./configure run.
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From - Thu Nov 08 21:09:33 2018
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From: Corey Minyard <tcminyard@gmail.com>
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Subject: Re: [PATCH v2] BMC support for PARISC machines
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Ok, I have it in my tree.  Rolf mentioned a few cleanup things, but this 
is consistent with what is already there.  I should clean up all the 
things Rolf talked about in all the cases.

Thanks,

-corey

On 07/30/2013 04:13 PM, Thomas Bogendoerfer wrote:
> The last line of PARISC machines (C8000, RP34x0, etc.) have a BMC for
> controlling temperature, fan speed and other stuff. The BMC is connected
> via a special bus and listed in the firmware device tree. This change
> adds support for these BMCs to the IPMI driver.
>
> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> ---
>
> v2: Fixed SMP problem by using smi_alloc_info() to get spinlock initialized
>      correctly
>
> This is the second try to get this change integrated. If you see
> any problems with this patch, please give me hints how to improve
> this patch.
>
>
>   drivers/char/ipmi/ipmi_si_intf.c |   75 ++++++++++++++++++++++++++++++++++++++
>   1 file changed, 75 insertions(+)
>
> diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
> index af4b23f..1ea4201 100644
> --- a/drivers/char/ipmi/ipmi_si_intf.c
> +++ b/drivers/char/ipmi/ipmi_si_intf.c
> @@ -71,6 +71,11 @@
>   #include <linux/of_address.h>
>   #include <linux/of_irq.h>
>   
> +#ifdef CONFIG_PARISC
> +#include <asm/hardware.h>	/* for register_parisc_driver() stuff */
> +#include <asm/parisc-device.h>
> +#endif
> +
>   #define PFX "ipmi_si: "
>   
>   /* Measure times between events in the driver. */
> @@ -298,6 +303,9 @@ static int pci_registered;
>   #ifdef CONFIG_ACPI
>   static int pnp_registered;
>   #endif
> +#ifdef CONFIG_PARISC
> +static int parisc_registered;
> +#endif
>   
>   static unsigned int kipmid_max_busy_us[SI_MAX_PARMS];
>   static int num_max_busy_us;
> @@ -2697,6 +2705,62 @@ static struct platform_driver ipmi_driver = {
>   	.remove		= ipmi_remove,
>   };
>   
> +#ifdef CONFIG_PARISC
> +static int ipmi_parisc_probe(struct parisc_device *dev)
> +{
> +	struct smi_info *info;
> +
> +	info = smi_info_alloc();
> +
> +	if (!info) {
> +		dev_err(&dev->dev,
> +			"could not allocate memory for PARISC probe\n");
> +		return -ENOMEM;
> +	}
> +
> +	info->si_type		= SI_KCS;
> +	info->addr_source	= SI_DEVICETREE;
> +	info->io_setup		= mem_setup;
> +	info->io.addr_type	= IPMI_MEM_ADDR_SPACE;
> +	info->io.addr_data	= dev->hpa.start;
> +	info->io.regsize	= 1;
> +	info->io.regspacing	= 1;
> +	info->io.regshift	= 0;
> +	info->irq		= 0; /* no interrupt */
> +	info->irq_setup		= NULL;
> +	info->dev		= &dev->dev;
> +
> +	dev_dbg(&dev->dev, "addr 0x%lx\n", info->io.addr_data);
> +
> +	dev_set_drvdata(&dev->dev, info);
> +
> +	if (add_smi(info)) {
> +		kfree(info);
> +		return -EBUSY;
> +	}
> +
> +	return 0;
> +}
> +
> +static int ipmi_parisc_remove(struct parisc_device *dev)
> +{
> +	cleanup_one_si(dev_get_drvdata(&dev->dev));
> +	return 0;
> +}
> +
> +static struct parisc_device_id ipmi_parisc_tbl[] = {
> +	{ HPHW_MC, HVERSION_REV_ANY_ID, 0x004, 0xC0 },
> +	{ 0, }
> +};
> +
> +static struct parisc_driver ipmi_parisc_driver = {
> +	.name =		"ipmi",
> +	.id_table =	ipmi_parisc_tbl,
> +	.probe =	ipmi_parisc_probe,
> +	.remove =	ipmi_parisc_remove,
> +};
> +#endif /* CONFIG_PARISC */
> +
>   static int wait_for_msg_done(struct smi_info *smi_info)
>   {
>   	enum si_sm_result     smi_result;
> @@ -3462,6 +3526,13 @@ static int init_ipmi_si(void)
>   		spmi_find_bmc();
>   #endif
>   
> +#ifdef CONFIG_PARISC
> +	register_parisc_driver(&ipmi_parisc_driver);
> +	parisc_registered = 1;
> +	/* poking PC IO addresses will crash machine, don't do it */
> +	si_trydefaults = 0;
> +#endif
> +
>   	/* We prefer devices with interrupts, but in the case of a machine
>   	   with multiple BMCs we assume that there will be several instances
>   	   of a given type so if we succeed in registering a type then also
> @@ -3608,6 +3679,10 @@ static void cleanup_ipmi_si(void)
>   	if (pnp_registered)
>   		pnp_unregister_driver(&ipmi_pnp_driver);
>   #endif
> +#ifdef CONFIG_PARISC
> +	if (parisc_registered)
> +		unregister_parisc_driver(&ipmi_parisc_driver);
> +#endif
>   
>   	platform_driver_unregister(&ipmi_driver);
>   

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From - Thu Nov 08 21:09:33 2018
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On 07/30/2013 11:06 PM, Meelis Roos wrote:
> I tried 3.11-rc3 yesterday on my RP3440. It works, but has acquired a 
> new warning during Gentoo emerge cycle:
> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
> 
> There is no file named conftest present after emerge, so it must have 
> been some temporary program.

Those warnings are uncritical - but you should update binutils.
See: http://permalink.gmane.org/gmane.linux.ports.parisc/3834

Helge
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From - Thu Nov 08 21:09:33 2018
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Cc: Meelis Roos <mroos@linux.ee>, linux-parisc@vger.kernel.org
To: Helge Deller <deller@gmx.de>
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On 31-Jul-13, at 5:44 AM, Helge Deller wrote:

> On 07/30/2013 11:06 PM, Meelis Roos wrote:
>> I tried 3.11-rc3 yesterday on my RP3440. It works, but has acquired a
>> new warning during Gentoo emerge cycle:
>> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file  
>> conftest
>> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file  
>> conftest
>> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file  
>> conftest
>> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file  
>> conftest
>> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file  
>> conftest
>> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file  
>> conftest
>> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file  
>> conftest
>> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file  
>> conftest
>> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file  
>> conftest
>> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file  
>> conftest
>>
>> There is no file named conftest present after emerge, so it must have
>> been some temporary program.
>
> Those warnings are uncritical - but you should update binutils.
> See: http://permalink.gmane.org/gmane.linux.ports.parisc/3834

I don't think we can assume that.  What I fixed was was the text and  
data mappings
where they overlappedi at the end of the text region:

[ 7649.720000] INEQUIVALENT ALIASES 0x13000 and 0x14000 in file tst- 
cputimer1
Virtual addresses 0x13000 and 0x14000 where both pointing at same  
page.  The mapping
mapping through 0x13000 was read only, so I think this case was  
probably harmless.  If the
inequivalent aliases above are writeable, then there is a problem.   
Compare the addresses
in the two cases.

Dave
--
John David Anglin	dave.anglin@bell.net



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To: Linus Torvalds <torvalds@linux-foundation.org>,
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Hi Linus,

please pull the latest parisc architecture fixes from:
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.11-rc4

The majority of lines changed are due the addition of a defconfig for the C8000
machine.  Even the fix in parisc/kernel/cache.c file is actually ony a 10-line
fix, but the change became bigger (and much nicer) to avoid errors of the
checkpatch script.

Here is the short-changelog:

This round of parisc updates includes mostly fixes for the C8000 workstation.
We have a new defconfig file for this machine, as well as fixes for it's serial
port, the AGP driver and the cache routines to cope with the vmas of the
FireGL card in a C8000.  The sys32.h header file was not used and as such it's
now gone.


Thanks,
Helge 

----------------------------------------------------------------
Alex Ivanov (1):
      parisc: agp/parisc-agp: allow binding of user memory to the AGP GART

Helge Deller (1):
      parisc: add defconfig for c8000 machine

John David Anglin (2):
      parisc: Fix cache routines to ignore vma's with an invalid pfn
      parisc: Remove arch/parisc/kernel/sys32.h header

Thomas Bogendoerfer (1):
      parisc: Fix interrupt routing for C8000 serial ports

 arch/parisc/configs/c8000_defconfig     | 279 ++++++++++++++++++++++++++++++++
 arch/parisc/include/asm/parisc-device.h |   3 +
 arch/parisc/kernel/cache.c              | 135 ++++++++--------
 arch/parisc/kernel/inventory.c          |   1 +
 arch/parisc/kernel/signal.c             |   7 -
 arch/parisc/kernel/signal32.c           |   1 -
 arch/parisc/kernel/sys32.h              |  36 -----
 arch/parisc/kernel/sys_parisc32.c       |   2 -
 drivers/char/agp/parisc-agp.c           |   6 +-
 drivers/parisc/iosapic.c                |  38 +++--
 drivers/tty/serial/8250/8250_gsc.c      |   3 +-
 11 files changed, 386 insertions(+), 125 deletions(-)
 create mode 100644 arch/parisc/configs/c8000_defconfig
 delete mode 100644 arch/parisc/kernel/sys32.h

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Subject: Re: INEQUIVALENT ALIASES in 3.11-rc3
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> > I tried 3.11-rc3 yesterday on my RP3440. It works, but has acquired a 
> > new warning during Gentoo emerge cycle:
> > [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
> > [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
> > [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
> > [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
> > [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file conftest
> > [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
> > [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
> > [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
> > [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
> > [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file conftest
> > 
> > There is no file named conftest present after emerge, so it must have 
> > been some temporary program.
> 
> Those warnings are uncritical - but you should update binutils.
> See: http://permalink.gmane.org/gmane.linux.ports.parisc/3834

I did a full deep emerge update on Gentoo taht also installed binutils 
2.23.1. I will look for further messages when there is something new to 
upgrade - during the same upgrade, it got messages about locale-archive.

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:09:33 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: INEQUIVALENT ALIASES in 3.11-rc3
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On 1-Aug-13, at 5:28 AM, Meelis Roos wrote:

>>> I tried 3.11-rc3 yesterday on my RP3440. It works, but has  
>>> acquired a
>>> new warning during Gentoo emerge cycle:
>>> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file  
>>> conftest
>>> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file  
>>> conftest
>>> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file  
>>> conftest
>>> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file  
>>> conftest
>>> [  922.492000] INEQUIVALENT ALIASES 0x4197a000 and 0x7b000 in file  
>>> conftest
>>> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file  
>>> conftest
>>> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file  
>>> conftest
>>> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file  
>>> conftest
>>> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file  
>>> conftest
>>> [ 4577.536000] INEQUIVALENT ALIASES 0x41a76000 and 0x7b000 in file  
>>> conftest
>>>
>>> There is no file named conftest present after emerge, so it must  
>>> have
>>> been some temporary program.
>>
>> Those warnings are uncritical - but you should update binutils.
>> See: http://permalink.gmane.org/gmane.linux.ports.parisc/3834
>
> I did a full deep emerge update on Gentoo taht also installed binutils
> 2.23.1. I will look for further messages when there is something new  
> to
> upgrade - during the same upgrade, it got messages about locale- 
> archive.


conftest is the name of the test program used by configure.  It's  
output log is in config.log in the directory
being configured.

As I said, the above messages typically occur when a core dump  
occurs.  This is because the core dump
flushes all the mappings that the application has and the kernel  
detects the inequivalent aliases.  Probably,
this occurred twice in the package being configured.

It is easy to generate inequivalent aliases with a custom linker  
script.  It's quite likely they are being generated
by the eglibc package but that's just a guess.

Dave
--
John David Anglin	dave.anglin@bell.net



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Hi Dave,

On 07/30/2013 12:46 AM, John David Anglin wrote:
> The following kernel packages are now in the parisc-linux.org
> archive:
> 
> linux-image-3.10-1-parisc-smp_3.10.3-1_hppa.deb 
> linux-image-3.10-1-parisc64-smp_3.10.3-1_hppa.deb 
> linux-image-3.10-1-parisc64_3.10.3-1_hppa.deb 
> linux-image-3.10-1-parisc_3.10.3-1_hppa.deb

That's fantastic!
This brings us one big step further to being able to build a real debian-unstable-installer boot CD.

I'm still hoping the C8000 patches I pushed for inclusion into 3.11 will then
show up in stable 3.10 series soon as well. If that happens we will have a kernel
which should boot on all machines - including the c8000.

Helge
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From - Thu Nov 08 21:09:33 2018
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From: John David Anglin <dave.anglin@bell.net>
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On 1-Aug-13, at 6:20 PM, Helge Deller wrote:

> Hi Dave,
>
> On 07/30/2013 12:46 AM, John David Anglin wrote:
>> The following kernel packages are now in the parisc-linux.org
>> archive:
>>
>> linux-image-3.10-1-parisc-smp_3.10.3-1_hppa.deb
>> linux-image-3.10-1-parisc64-smp_3.10.3-1_hppa.deb
>> linux-image-3.10-1-parisc64_3.10.3-1_hppa.deb
>> linux-image-3.10-1-parisc_3.10.3-1_hppa.deb
>
> That's fantastic!
> This brings us one big step further to being able to build a real  
> debian-unstable-installer boot CD.
>
> I'm still hoping the C8000 patches I pushed for inclusion into 3.11  
> will then
> show up in stable 3.10 series soon as well. If that happens we will  
> have a kernel
> which should boot on all machines - including the c8000.


I have bootstrap tested the linux-image-3.10-1-parisc64- 
smp_3.10.3-1_hppa.deb package.  We'll
have to see if 3.10 will be the Debian choice for the next release.

As I mentioned in private, I have found that flush_cache_all() is the  
principal problem causing random
segmentation faults on SMP systems.  Unfortunately, the only fix so  
far is to not use flush_cache_all()
in flush_cache_mm() and flush_cache_range(), and this really slows  
things down running GCC
testsuite.  It doesn't seem to hurt much for other stuff.

My thought that this might be a timing issue didn't work.  I tried  
masking all external interrupts except for
IPI on all processors first, but it didn't help.  It may be this can  
be narrowed somewhat.  I suspect that we
have an inconsistent cache state during fork.

I think if this issue is fixed, c8000's will be worth a bit more than  
100 Euros...

Dave
--
John David Anglin	dave.anglin@bell.net



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On Thu, 2013-08-01 at 18:39 -0400, John David Anglin wrote:
> On 1-Aug-13, at 6:20 PM, Helge Deller wrote:
> 
> > Hi Dave,
> >
> > On 07/30/2013 12:46 AM, John David Anglin wrote:
> >> The following kernel packages are now in the parisc-linux.org
> >> archive:
> >>
> >> linux-image-3.10-1-parisc-smp_3.10.3-1_hppa.deb
> >> linux-image-3.10-1-parisc64-smp_3.10.3-1_hppa.deb
> >> linux-image-3.10-1-parisc64_3.10.3-1_hppa.deb
> >> linux-image-3.10-1-parisc_3.10.3-1_hppa.deb
> >
> > That's fantastic!
> > This brings us one big step further to being able to build a real  
> > debian-unstable-installer boot CD.
> >
> > I'm still hoping the C8000 patches I pushed for inclusion into 3.11  
> > will then
> > show up in stable 3.10 series soon as well. If that happens we will  
> > have a kernel
> > which should boot on all machines - including the c8000.
> 
> 
> I have bootstrap tested the linux-image-3.10-1-parisc64- 
> smp_3.10.3-1_hppa.deb package.  We'll
> have to see if 3.10 will be the Debian choice for the next release.
> 
> As I mentioned in private, I have found that flush_cache_all() is the  
> principal problem causing random
> segmentation faults on SMP systems.

That would tend to indicate the architectural flush code is wrong: it
isn't flushing all as it should be.

James


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From - Thu Nov 08 21:09:34 2018
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On 1-Aug-13, at 6:52 PM, James Bottomley wrote:

> On Thu, 2013-08-01 at 18:39 -0400, John David Anglin wrote:
>> On 1-Aug-13, at 6:20 PM, Helge Deller wrote:
>>
>>> Hi Dave,
>>>
>>> On 07/30/2013 12:46 AM, John David Anglin wrote:
>>>> The following kernel packages are now in the parisc-linux.org
>>>> archive:
>>>>
>>>> linux-image-3.10-1-parisc-smp_3.10.3-1_hppa.deb
>>>> linux-image-3.10-1-parisc64-smp_3.10.3-1_hppa.deb
>>>> linux-image-3.10-1-parisc64_3.10.3-1_hppa.deb
>>>> linux-image-3.10-1-parisc_3.10.3-1_hppa.deb
>>>
>>> That's fantastic!
>>> This brings us one big step further to being able to build a real
>>> debian-unstable-installer boot CD.
>>>
>>> I'm still hoping the C8000 patches I pushed for inclusion into 3.11
>>> will then
>>> show up in stable 3.10 series soon as well. If that happens we will
>>> have a kernel
>>> which should boot on all machines - including the c8000.
>>
>>
>> I have bootstrap tested the linux-image-3.10-1-parisc64-
>> smp_3.10.3-1_hppa.deb package.  We'll
>> have to see if 3.10 will be the Debian choice for the next release.
>>
>> As I mentioned in private, I have found that flush_cache_all() is the
>> principal problem causing random
>> segmentation faults on SMP systems.
>
> That would tend to indicate the architectural flush code is wrong: it
> isn't flushing all as it should be.


That thought had occurred to me.  It's also possible that it doesn't  
work
properly with the L3 added in the PA8800/PA8900 systems.

What seems to work is flushing all the user mappings.

I should note that I have also seen corruption of space register %sr1
(added checks in the routines that use pa_memcpy).  I think the only
way that can happen is kernel stack corruption.  Probably, this is also
caused by flush_cache_all.  I know this issue has been around for
a long time.

I'll look at the flush code again.

Dave
--
John David Anglin	dave.anglin@bell.net



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Hello everyone,

this is just a short update on the status of the parisc port from my point of
view, including a short summary of what have been done during the last few weeks
and what is planned for the near future. 

So, what's the status of the Linux kernel for parisc?

Basically, I think all major outstanding kernel patches are now in the upcoming
kernel 3.11 tree, and the important ones will show up in the stable kernel 3.10
series soon as well. Kernel 3.9 should be OK as well, but some patches might be
missing.

With kernel 3.11 (and 3.10.5 or higher) I expect most instability issues from
the past to be gone.  There might still be minor issues with userspace
segfaults (due to cache issues), but they are rare....

Looking back, the main problems of instability and kernel crashes in the past
were assumely due to 
   a) cache and TLB flushing were unreliable,
   b) kernel stack overflows (because of sudden irq processing which used too much stack), and
   c) miscompiled code in pa_memcpy() because of C-code which is not valid C...

Testing on my machines showed, that the kernels 3.10.x and 3.11 will boot in UP
and SMP mode on nearly all machines. Most notably, we now have support for the
C8000 workstation, for which serial ports and framebuffer mode with FireGL
cards should work (Thank you Thomas!). Even a patch for the BMC in the C8000
will probably be included latest with kernel 3.12.

Debian:
We have our own debian package repository at
http://ftp.parisc-linux.org/debian-ports/ which currently holds more than 8300
pre-built debian packages (Thank you Dave!!!).  Even pre-built debian 3.10
kernel images are now available there.  We don't yet have a real
debian-installation media yet.
I've prepared a bootable image and some instructions on how to install
debian-unstable from our repository, but you should only try this if you are a
linux/parisc expert.  Brave people will find those instructions here:
http://wiki.parisc-linux.org/Debian_Ports_Installation For all others I'd
suggest to wait until we have the debian-installer finished, which is still one
of my top-priorities.

Furthermore, we sadly still don't have buildd-server. What really is missing
here is someone who is willing to host a parisc server and provide enough
direct bandwith to the internet.  Giving away real server hardware is probably
doable (and those parisc machines luckily aren't expensive any longer on ebay
:-)) and even administration would be done by Dave, me or someone else if
necessary.
On the other side, Dave has the buildd/wanna-build software installed on his
machine.  The wanna-build software needs a custom trigger script to handle
running on a non local machine.  It is needed to populate the source and
packages database.  Maybe, somebody has already done this and may give him a
hint?

Gentoo:
If you don't want to wait for debian, I'd suggest that you try Gentoo instead.
For instructions please see their website at
http://www.gentoo.org/main/en/where.xml (architecture hppa).

PARISC website:
Our current parisc website at http://www.parisc-linux.org is still based on
CVS, and it's sometimes unreliable (means: sometimes it's not reachable).  To
solve this issue my plan is to migrate it's content in september to the wiki at
kernel.org: https://parisc.wiki.kernel.org/
If someone is interested in doing that - and maybe has some interest and
knowledge in how nice web sites should look like, please let me know!

TODO:
There is still much on my todo list, most importantly
- keep pushing kernel patches upstream (https://patchwork.kernel.org/project/linux-parisc/list/)
- build a debian-installer ISO, and
- migrate the website.
For all other things I keep a personal TODO-list at
http://wiki.parisc-linux.org/TODO. Again, volunteers for some of those topics
are always welcome!

Last but not least I want to say a thank-you to all people who have contributed
to this project during the last weeks. The following list of people is taken
purely from the kernel git tree and shows those who have directly or indirectly
contributed to parisc kernel source tree. Same thank-you goes of course to all
other here unnamed people who have tested stuff, reported issues, fixed
userspace or kept on the discussion.

THANK YOU!

Helge



List of contributors to the kernel tree:
----------------------------------------
Alex Ivanov
Al Viro
Bill Pemberton
Bjorn Helgaas
Chen Gang
Cong Wang
Damian Hobson-Garcia
David Howells
Frederic Weisbecker
Geert Uytterhoeven
Guy Martin
Helge Deller
H. Peter Anvin
James Bottomley
Jiang Liu
Jiri Slaby
Joe Perches
John David Anglin
John Stultz
Julia Lawall
Kautuk Consul
Kees Cook
Kyle McMartin
Larry Finger
Mathias Krause
Matt Fleming
Michael S. Tsirkin
Michel Lespinasse
Mike Frysinger
Myron Stowe
Nikitas Angelinas
Paul Bolle
Paul Gortmaker
Peter Huewe
Peter Zijlstra
Rolf Eike Beer
Srivatsa S. Bhat
Thomas Bogendoerfer
Thomas Gleixner
Torben Hohn
Wei Yongjun
Will Deacon
Yinghai Lu
Yong Zhang
Zhao Hongjiang

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11.07.2013, 23:48, "Helge Deller" <deller@gmx.de>:
> adding linux parisc mailing list...:
>
> On 07/11/2013 09:46 PM, Helge Deller wrote:
>
>> =9AOn 07/10/2013 11:29 PM, Alex Ivanov wrote:
>>> =9A11.07.2013, 01:14, "Matt Turner" <mattst88@gmail.com>:
>>>> =9AOn Wed, Jul 10, 2013 at 1:19 PM, Alex Ivanov <gnidorah@p0n4ik.t=
k> wrote:
>>>>> =9A=9AThank you so much! Your guess looks to be right. After appl=
ying of your
>>>>> =9A=9Apatch there was no more KP and X just worked.
>>>> =9ANice! Does DRI work?
>>> =9ANot on my side. Plus i can't visually jump over 8bit depth, alth=
ough Xorg
>>> =9Astates 24bit in it's log.
>>> =9AAs for DRI, i'm experiencing
>>> =9A"ring test failed (scratch(0x15E4)=3D0xCAFEDEAD)" with a firegl =
x3.
>> =9AFWIW, I'm seeing the same failure on my FireGL X1:
>> =9A80:00.0 VGA compatible controller: Advanced Micro Devices [AMD] n=
ee ATI Radeon R300 NG [FireGL X1] (rev 80)
>>
>> =9A[drm] radeon: irq initialized.
>> =9A[drm] Loading R300 Microcode
>> =9A[drm] radeon: ring at 0x0000000060001000
>> =9A[drm:r100_ring_test] *ERROR* radeon: ring test failed (scratch(0x=
15E4)=3D0xCAFEDEAD)
>> =9A[drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22).
>> =9Aradeon 0000:80:00.0: failed initializing CP (-22).
>> =9Aradeon 0000:80:00.0: Disabling GPU acceleration
>> =9A[drm:r100_cp_fini] *ERROR* Wait for CP idle timeout, shutting dow=
n CP.
>> =9A[drm] radeon: cp finalized
>> =9A[drm] radeon: cp finalized

I still have no clue why this happens. Broken SBA IOMMU / DRM code? Mis=
sing syncing primitives?
Should we forward this to dri-devel mail list?
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On Sat, Aug 3, 2013 at 4:41 PM, Helge Deller <deller@gmx.de> wrote:
> So, what's the status of the Linux kernel for parisc?
>
> Basically, I think all major outstanding kernel patches are now in the upcoming
> kernel 3.11 tree, and the important ones will show up in the stable kernel 3.10
> series soon as well. Kernel 3.9 should be OK as well, but some patches might be
> missing.
>
> With kernel 3.11 (and 3.10.5 or higher) I expect most instability issues from
> the past to be gone.  There might still be minor issues with userspace
> segfaults (due to cache issues), but they are rare....

Thanks for all the work Helge!

On the glibc front I don't have as good news. We shipped 2.18 without
all of the hppa patches, but keep a patchset up to date, and I'm
merging in some changes from Dave.

The glibc testsuite results are really bad, but hopefully I'll poke at
those over the coming year.

I'm using gentoo, and taking patches form the gentoo people and
feeding those upstream as they are reported (I still have a few to go
through).

Cheers,
Carlos.
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Carlos O'Donell wrote:
> On Sat, Aug 3, 2013 at 4:41 PM, Helge Deller <deller@gmx.de> wrote:
> > So, what's the status of the Linux kernel for parisc?
> > 
> > Basically, I think all major outstanding kernel patches are now in the
> > upcoming kernel 3.11 tree, and the important ones will show up in the
> > stable kernel 3.10 series soon as well. Kernel 3.9 should be OK as well,
> > but some patches might be missing.
> > 
> > With kernel 3.11 (and 3.10.5 or higher) I expect most instability issues
> > from the past to be gone.  There might still be minor issues with
> > userspace segfaults (due to cache issues), but they are rare....
> 
> Thanks for all the work Helge!
> 
> On the glibc front I don't have as good news. We shipped 2.18 without
> all of the hppa patches, but keep a patchset up to date, and I'm
> merging in some changes from Dave.
> 
> The glibc testsuite results are really bad, but hopefully I'll poke at
> those over the coming year.
> 
> I'm using gentoo, and taking patches form the gentoo people and
> feeding those upstream as they are reported (I still have a few to go
> through).

Thanks to all of you working on that.

I currently do not have problems with glibc, at least I don't see any (Gentoo, 
using their 2.14 version). What I see are problems in binutils, although 
AFAICT those are not really HPPA-specific. One easy test is to build a recent 
version of CMake: if you specify no compiler flags bootstrapping will work, as 
I inserted -Wl,--unique=.text.* into the LDFLAGS there. But if you pass -O2 if 
will not build (binutils 2.23.[12]). If you remove the linker flag it will not 
work without -O2. I can't build newer kernels for my C8000 with frame pointers 
as it will crash ld with a NULL deref somewhere, older kernels work (probably 
smaller).

But otherwise my machine became pretty stable in the last time, that is really 
good ;)

Greetings,

Eike
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: State of the PA-RISC/HPPA port (August 2013)
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
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To: "Carlos O'Donell" <carlos@systemhalted.org>
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On 4-Aug-13, at 8:21 AM, Carlos O'Donell wrote:

> The glibc testsuite results are really bad, but hopefully I'll poke at
> those over the coming year.

Attached results from last Debian 2.17 build.

Have kernel patch installed that fixed tst-mqueue2.  However, I think  
there are
still issues with writev syscall.

We might knock out quite a few if we found the cause of cancel test  
failures.

Dave
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#
# Testsuite failures, someone should be working towards
# fixing these! They are listed here for the purpose of
# regression testing during builds.
# Format: <Failed test>, Error <Make error code> [(ignored)]
#
annexc.out, Error 1 (ignored)
check-execstack.out, Error 1
check-localplt.out, Error 1
check-textrel.out, Error 1
run-conformtest.out, Error 1 (ignored)
test-double.out, Error 1
test-float.out, Error 1
test-idouble.out, Error 1
test-ifloat.out, Error 1
tst-addr1.out, Error 1
tst-attr3.out, Error 1
tst-audit2.out, Error 139
tst-backtrace2.out, Error 1
tst-backtrace3.out, Error 1
tst-backtrace4.out, Error 1
tst-backtrace5.out, Error 1
tst-backtrace6.out, Error 1
tst-cancel22.out, Error 1
tst-cancel23.out, Error 1
tst-cancel4.out, Error 1
tst-cancel5.out, Error 1
tst-cancelx20.out, Error 1
tst-cancelx21.out, Error 1
tst-cancelx4.out, Error 1
tst-cancelx5.out, Error 1
tst-cleanupx4.out, Error 1
tst-cond25.out, Error 1
tst-cpuclock2.out, Error 1
tst-getcpu.out, Error 1
tst-makecontext.out, Error 255
tst-mqueue8x.out, Error 1
tst-trim1.out, Error 1

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From: John David Anglin <dave.anglin@bell.net>
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To: Alex Ivanov <gnidorah@p0n4ik.tk>
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On 4-Aug-13, at 7:00 AM, Alex Ivanov wrote:

> 11.07.2013, 23:48, "Helge Deller" <deller@gmx.de>:
>> adding linux parisc mailing list...:
>>
>> On 07/11/2013 09:46 PM, Helge Deller wrote:
>>
>>>  On 07/10/2013 11:29 PM, Alex Ivanov wrote:
>>>>  11.07.2013, 01:14, "Matt Turner" <mattst88@gmail.com>:
>>>>>  On Wed, Jul 10, 2013 at 1:19 PM, Alex Ivanov  
>>>>> <gnidorah@p0n4ik.tk> wrote:
>>>>>>   Thank you so much! Your guess looks to be right. After  
>>>>>> applying of your
>>>>>>   patch there was no more KP and X just worked.
>>>>>  Nice! Does DRI work?
>>>>  Not on my side. Plus i can't visually jump over 8bit depth,  
>>>> although Xorg
>>>>  states 24bit in it's log.
>>>>  As for DRI, i'm experiencing
>>>>  "ring test failed (scratch(0x15E4)=0xCAFEDEAD)" with a firegl x3.
>>>  FWIW, I'm seeing the same failure on my FireGL X1:
>>>  80:00.0 VGA compatible controller: Advanced Micro Devices [AMD]  
>>> nee ATI Radeon R300 NG [FireGL X1] (rev 80)
>>>
>>>  [drm] radeon: irq initialized.
>>>  [drm] Loading R300 Microcode
>>>  [drm] radeon: ring at 0x0000000060001000
>>>  [drm:r100_ring_test] *ERROR* radeon: ring test failed  
>>> (scratch(0x15E4)=0xCAFEDEAD)
>>>  [drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22).
>>>  radeon 0000:80:00.0: failed initializing CP (-22).
>>>  radeon 0000:80:00.0: Disabling GPU acceleration
>>>  [drm:r100_cp_fini] *ERROR* Wait for CP idle timeout, shutting  
>>> down CP.
>>>  [drm] radeon: cp finalized
>>>  [drm] radeon: cp finalized
>
> I still have no clue why this happens. Broken SBA IOMMU / DRM code?  
> Missing syncing primitives?

I wonder if there is a endian issue in the microcode load.

Dave
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On Sun, Aug 4, 2013 at 8:44 AM, John David Anglin <dave.anglin@bell.net> wrote:
> I wonder if there is a endian issue in the microcode load.

It should work on PowerPC (big-endian).
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Folks,

Which PCI/AGP local graphics options are you using today
on PA-RISC machines? I mean Xorg usage.

I'd like to use native option of my machine (FireGL X1/X3
in C8000), but it's currently broken (no DRM and software
accel is incredibly slow plus colors in 24bpp mode are wrong), 
so i'm looking for the alternatives.

Thanks in advance.
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Hi Alex,

On 08/08/2013 01:32 PM, Alex Ivanov wrote:
> Which PCI/AGP local graphics options are you using today
> on PA-RISC machines? I mean Xorg usage.

I'm not sure if it makes much sense to use a PA-RISC
machine as desktop machine nowadays. Every Intel-based
machine is faster, cheaper, better supported (graphic cards)
and uses less power... 
 
> I'd like to use native option of my machine (FireGL X1/X3
> in C8000), but it's currently broken (no DRM and software
> accel is incredibly slow plus colors in 24bpp mode are wrong), 
> so i'm looking for the alternatives.

For all other parisc machines we have the stifb driver which
supports the built-in graphic cards like Visualize-EG.
Visualize-FX cards are not supported and probably will never
be supported.

The only other card I used once (at least I tested it shortly)
was a Vodoo 2 card. Sadly it only supported 800x600 with 16bit if
I remember correctly.
I tried a Matrox PCI once too, but I think it had some issues.

So, I still hope we can get the FireGL supported fully soon...

Helge
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Helge,

Thank you much for the answer!

> I'm not sure if it makes much sense to use a PA-RISC
> machine as desktop machine nowadays. Every Intel-based
> machine is faster, cheaper, better supported (graphic cards)
> and uses less power...

Got your point.
That's true. Still would be nice to use workstation model
as workstation.

> The only other card I used once (at least I tested it shortly)
> was a Vodoo 2 card. Sadly it only supported 800x600 with 16bit if
> I remember correctly.
> I tried a Matrox PCI once too, but I think it had some issues.

I have some S3 (PCI 5v) and an Asus AGP (not AGP Pro) though
can't test them, as i don't have corresponding risers.
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On 10-Aug-13, at 2:00 AM, gnidorah@p0n4ik.tk wrote:

>> I'm not sure if it makes much sense to use a PA-RISC
>> machine as desktop machine nowadays. Every Intel-based
>> machine is faster, cheaper, better supported (graphic cards)
>> and uses less power...
>
> Got your point.
> That's true. Still would be nice to use workstation model
> as workstation.

Yes, it's a bit of a cop out.

I still tend to think the bug is in the firmware load.  Is there any  
external way to confirm that it loads
correctly (e.g., a led on card)?  The error indicates that the command  
processor (CP) isn't working.

There is a manual "Radeon R5xx Acceleration" that might help debug.

Dave
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John David Anglin	dave.anglin@bell.net



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On 4-Aug-13, at 7:00 AM, Alex Ivanov wrote:

> 11.07.2013, 23:48, "Helge Deller" <deller@gmx.de>:
>> adding linux parisc mailing list...:
>>
>> On 07/11/2013 09:46 PM, Helge Deller wrote:
>>
>>>  On 07/10/2013 11:29 PM, Alex Ivanov wrote:
>>>>  11.07.2013, 01:14, "Matt Turner" <mattst88@gmail.com>:
>>>>>  On Wed, Jul 10, 2013 at 1:19 PM, Alex Ivanov  
>>>>> <gnidorah@p0n4ik.tk> wrote:
>>>>>>   Thank you so much! Your guess looks to be right. After  
>>>>>> applying of your
>>>>>>   patch there was no more KP and X just worked.
>>>>>  Nice! Does DRI work?
>>>>  Not on my side. Plus i can't visually jump over 8bit depth,  
>>>> although Xorg
>>>>  states 24bit in it's log.
>>>>  As for DRI, i'm experiencing
>>>>  "ring test failed (scratch(0x15E4)=0xCAFEDEAD)" with a firegl x3.
>>>  FWIW, I'm seeing the same failure on my FireGL X1:
>>>  80:00.0 VGA compatible controller: Advanced Micro Devices [AMD]  
>>> nee ATI Radeon R300 NG [FireGL X1] (rev 80)
>>>
>>>  [drm] radeon: irq initialized.
>>>  [drm] Loading R300 Microcode
>>>  [drm] radeon: ring at 0x0000000060001000
>>>  [drm:r100_ring_test] *ERROR* radeon: ring test failed  
>>> (scratch(0x15E4)=0xCAFEDEAD)
>>>  [drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22).
>>>  radeon 0000:80:00.0: failed initializing CP (-22).
>>>  radeon 0000:80:00.0: Disabling GPU acceleration
>>>  [drm:r100_cp_fini] *ERROR* Wait for CP idle timeout, shutting  
>>> down CP.
>>>  [drm] radeon: cp finalized
>>>  [drm] radeon: cp finalized

Have you tried agpmode=-1 to force PCI mode.  It seems like this was a  
problem at one time on ubuntu:
http://phoronix.com/forums/showthread.php?17615-Testing-radeon-KMS-on-Ubuntu

Dave
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> =EF=D4: Alex Ivanov <gnidorah@p0n4ik.tk>
> =F4=C5=CD=C1: =EF=D4=D7=C5=D4: [PATCH] parisc: fix LMMIO mismatch bet=
ween PAT length and MASK register
> =E4=C1=D4=C1: 10 =C1=D7=C7=D5=D3=D4=C1 2013 =C7., 23:55:35 GMT+04:00
> =EB=CF=CD=D5: John David Anglin <dave.anglin@bell.net>
>=20
>=20
> 10.08.2013, =D7 23:41, John David Anglin <dave.anglin@bell.net> =CE=C1=
=D0=C9=D3=C1=CC(=C1):
>>=20
>> Have you tried agpmode=3D-1 to force PCI mode.  It seems like this w=
as a problem at one time on ubuntu:
>> http://phoronix.com/forums/showthread.php?17615-Testing-radeon-KMS-o=
n-Ubuntu
>>=20
>> Dave
>> --
>> John David Anglin	dave.anglin@bell.net
>=20
>=20
> John,
>=20
> I've tried this one and many other things (except the messing with en=
dianness) so far. The error is=20
> still there.
>=20
> Thanks.
>=20

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Hi Helge,

Le 3 ao=FBt 2013 =E0 22:41, Helge Deller <deller@gmx.de> a =E9crit :

> Furthermore, we sadly still don't have buildd-server. What really is =
missing
> here is someone who is willing to host a parisc server and provide en=
ough
> direct bandwith to the internet.  Giving away real server hardware is=
 probably
> doable (and those parisc machines luckily aren't expensive any longer=
 on ebay
> :-)) and even administration would be done by Dave, me or someone els=
e if
> necessary.

I think this is not exactly the issue. As I told you before, you are we=
lcome to set up the A500 (since the rp3440 is broken, and I don't have =
the means to repair it) hosted at ESIEE (which has plenty of bw) as an =
autobuild. I think the problem has more to do with finding someone know=
ledgeable about the process AND willing to go through the pain of said =
setup. I for one will not volunteer, for the reasons I already detailed=
 in previous emails ;-)

HTH

T-Bone

--=20
Thibaut VAR=C8NE
http://hacks.slashdirt.org/--
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From: Jeroen Roovers <jer@gentoo.org>
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Subject: fanotify_mark()
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Trying out systemd I found that libc 2.17 does not build
fanotify_mark() support[1]. When I got it to do that (see attached
patch, which is probably incorrect), calls to fanotify_mark() still
failed on a C8000 (64-bit kernel). I am sure I am missing something
obvious.


Kind regards,
     jer


[1] https://bugs.gentoo.org/show_bug.cgi?id=480268
--MP_/suDRCDq20p3sK_9GVh4_jcQ
Content-Type: text/plain
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--- a/ports/sysdeps/unix/sysv/linux/hppa/syscalls.list
+++ b/ports/sysdeps/unix/sysv/linux/hppa/syscalls.list
@@ -36,3 +36,4 @@
 setrlimit	-	setrlimit	i:ip	__setrlimit	setrlimit	
 getrlimit	-	getrlimit	i:ip	__getrlimit	getrlimit	
 prlimit64	EXTRA	prlimit64	i:iipp	__prlimit64	prlimit64@@GLIBC_2.17
+fanotify_mark	EXTRA	fanotify_mark	i:iiiis	__fanotify_mark fanotify_mark@@GLIBC_2.17

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From - Thu Nov 08 21:09:35 2018
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Subject: Re: fanotify_mark()
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On 08/13/2013 03:49 PM, Jeroen Roovers wrote:
> Trying out systemd I found that libc 2.17 does not build
> fanotify_mark() support[1]. When I got it to do that (see attached
> patch, which is probably incorrect), calls to fanotify_mark() still
> failed on a C8000 (64-bit kernel). I am sure I am missing something
> obvious.
> 
> [1] https://bugs.gentoo.org/show_bug.cgi?id=480268

In the Linux kernel we use the compat layer for 32bit syscalls on 64bit kernel:
arch/parisc/kernel/syscall_table.S:     ENTRY_COMP(fanotify_mark)
which means we call (with 32bit userspace on 64bit kernel):
fs/notify/fanotify/fanotify_user.c:COMPAT_SYSCALL_DEFINE6(fanotify_mark, int, fanotify_fd, unsigned int, flags,
                __u32, mask0, __u32, mask1, int, dfd, const char  __user *, pathname)
which has 6 parameters.

So, I assume you need one more "i" in this line here (change i:iiiis -> i:iiiiis {to 5 i's}):
> +fanotify_mark	EXTRA	fanotify_mark	i:iiiis	__fanotify_mark fanotify_mark@@GLIBC_2.17

Just an assumption...

Helge
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From - Thu Nov 08 21:09:35 2018
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To: =?ISO-8859-1?Q?Thibaut_Var=E8ne?= <T-Bone@parisc-linux.org>
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Hi Thibaut,

On 08/13/2013 11:38 AM, Thibaut Var=E8ne wrote:
> Le 3 ao=FBt 2013 =E0 22:41, Helge Deller <deller@gmx.de> a =E9crit :
>> Furthermore, we sadly still don't have buildd-server. What really
>> is missing here is someone who is willing to host a parisc server
>> and provide enough direct bandwith to the internet.  Giving away
>> real server hardware is probably doable (and those parisc machines
>> luckily aren't expensive any longer on ebay :-)) and even
>> administration would be done by Dave, me or someone else if=20
>> necessary.
>=20
> I think this is not exactly the issue. As I told you before, you are
> welcome to set up the A500 (since the rp3440 is broken, and I don't
> have the means to repair it) hosted at ESIEE (which has plenty of bw)
> as an autobuild. I think the problem has more to do with finding
> someone knowledgeable about the process AND willing to go through the
> pain of said setup. I for one will not volunteer, for the reasons I
> already detailed in previous emails ;-)

Sure, I didn't forgot your offer, and yes, it's a lot of work...
Nevertheless, it doesn't hurt if we have more build servers as well.

Thanks!
Helge
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On Tue, 13 Aug 2013 23:29:42 +0200
Helge Deller <deller@gmx.de> wrote:

> > [1] https://bugs.gentoo.org/show_bug.cgi?id=480268
> 
> In the Linux kernel we use the compat layer for 32bit syscalls on
> 64bit kernel: arch/parisc/kernel/syscall_table.S:
> ENTRY_COMP(fanotify_mark) which means we call (with 32bit userspace
> on 64bit kernel):
> fs/notify/fanotify/fanotify_user.c:COMPAT_SYSCALL_DEFINE6(fanotify_mark,
> int, fanotify_fd, unsigned int, flags, __u32, mask0, __u32, mask1,
> int, dfd, const char  __user *, pathname) which has 6 parameters.
> 
> So, I assume you need one more "i" in this line here (change i:iiiis
> -> i:iiiiis {to 5 i's}):

I tried that too with a similarly bad result (I forgot to keep a
binary tarball of the packages glibc for easy switching, and I didn't
keep the strace output of the first attempt either).

As noted on the bug report. The bug report lists the relevant strace
output of the delightfully simple implementation of fanotify_mark in
the fatrace[1] tool as well:

# grep fanotif fatrace.strace
361   fanotify_init(0, 0)               = 3
361   fanotify_mark(0x3, 0x11, 0x4800003b, 0, 0xffffff9c) = -1 EINVAL
(Invalid argument)

I have since tried with a 32-bit kernel on a C3600, and there I get a
different one:

# grep fanotif fatrace.strace
2810  fanotify_init(0, 0)               = 3
2810  fanotify_mark(0x3, 0x11, 0x4800003b, 0, 0xffffff9c) = -1 EBADF
(Bad file descriptor)


     jer


[1] https://launchpad.net/fatrace
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On 13-Aug-13, at 5:36 PM, Helge Deller wrote:

> Hi Thibaut,
>
> On 08/13/2013 11:38 AM, Thibaut Var=E8ne wrote:
>> Le 3 ao=FBt 2013 =E0 22:41, Helge Deller <deller@gmx.de> a =E9crit :
>>> Furthermore, we sadly still don't have buildd-server. What really
>>> is missing here is someone who is willing to host a parisc server
>>> and provide enough direct bandwith to the internet.  Giving away
>>> real server hardware is probably doable (and those parisc machines
>>> luckily aren't expensive any longer on ebay :-)) and even
>>> administration would be done by Dave, me or someone else if
>>> necessary.
>>
>> I think this is not exactly the issue. As I told you before, you are
>> welcome to set up the A500 (since the rp3440 is broken, and I don't
>> have the means to repair it) hosted at ESIEE (which has plenty of bw=
)
>> as an autobuild. I think the problem has more to do with finding
>> someone knowledgeable about the process AND willing to go through th=
e
>> pain of said setup. I for one will not volunteer, for the reasons I
>> already detailed in previous emails ;-)
>
> Sure, I didn't forgot your offer, and yes, it's a lot of work...
> Nevertheless, it doesn't hurt if we have more build servers as well.


I have buildd running on my rp3440 and also have installed the wanna-=20
build
database infrastructure.  What is lacking are the trigger scripts for =20
wanna-build to
handle the remote debian source and parisc package archives.  There is =
=20
a local
trigger script.

So at the moment, the simplest solution appears to be mirroring the =20
archives locally.
I'm a bit worried about how much net bandwidth this will require.

All the packages to set up buildd and wanna-build are in the parisc =20
archive.  It's
not that much work.  The work in running a buildd server is in =20
monitoring
it and resolving package build issues.  I'm not seeing the ports =20
access issue being
resolved unless we can demonstrate a working system.

Dave
--
John David Anglin	dave.anglin@bell.net



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On 10-Aug-13, at 3:56 PM, Alex Ivanov wrote:

>> I've tried this one and many other things (except the messing with  
>> endianness) so far. The error is
>> still there.
>


Alex, I don't know which distro your using but I built and uploaded a  
new debian build of mesa and some packages it
depends on to the parisc archive.  Mesa and the open source ATI driver  
build without problems on parisc.  However, this
thread suggests we need to go backwards to resolve the endian issues:
http://forums.gentoo.org/viewtopic-p-7128758.html

I have a RV100 in my rp3440 that I may play a bit with if I get a  
chance.

While this might be a kernel issue, I suggest that the bug needs to be  
filed on the relevant distro package list and
maybe on the package source list as well.

Dave
--
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On 1-Aug-13, at 6:52 PM, James Bottomley wrote:

> On Thu, 2013-08-01 at 18:39 -0400, John David Anglin wrote:
>> On 1-Aug-13, at 6:20 PM, Helge Deller wrote:
>>
>>> Hi Dave,
>>>
>>> On 07/30/2013 12:46 AM, John David Anglin wrote:
>>>> The following kernel packages are now in the parisc-linux.org
>>>> archive:
>>>>
>>>> linux-image-3.10-1-parisc-smp_3.10.3-1_hppa.deb
>>>> linux-image-3.10-1-parisc64-smp_3.10.3-1_hppa.deb
>>>> linux-image-3.10-1-parisc64_3.10.3-1_hppa.deb
>>>> linux-image-3.10-1-parisc_3.10.3-1_hppa.deb
>>>
>>> That's fantastic!
>>> This brings us one big step further to being able to build a real
>>> debian-unstable-installer boot CD.
>>>
>>> I'm still hoping the C8000 patches I pushed for inclusion into 3.11
>>> will then
>>> show up in stable 3.10 series soon as well. If that happens we will
>>> have a kernel
>>> which should boot on all machines - including the c8000.
>>
>>
>> I have bootstrap tested the linux-image-3.10-1-parisc64-
>> smp_3.10.3-1_hppa.deb package.  We'll
>> have to see if 3.10 will be the Debian choice for the next release.
>>
>> As I mentioned in private, I have found that flush_cache_all() is the
>> principal problem causing random
>> segmentation faults on SMP systems.
>
> That would tend to indicate the architectural flush code is wrong: it
> isn't flushing all as it should be.


After looking at this, I think there is an irq problem.  It looks like  
we loose IPI
interrupts on occasion, or there is a sequencing issue in processing  
them.
In particular, it would be bad if we simultaneously tried to purge  
both theTLB
and cache at the same time.  However, this isn't the whole answer.

Dave
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On Wed, 2013-08-14 at 19:43 -0400, John David Anglin wrote:
> On 1-Aug-13, at 6:52 PM, James Bottomley wrote:
> 
> > On Thu, 2013-08-01 at 18:39 -0400, John David Anglin wrote:
> >> On 1-Aug-13, at 6:20 PM, Helge Deller wrote:
> >>
> >>> Hi Dave,
> >>>
> >>> On 07/30/2013 12:46 AM, John David Anglin wrote:
> >>>> The following kernel packages are now in the parisc-linux.org
> >>>> archive:
> >>>>
> >>>> linux-image-3.10-1-parisc-smp_3.10.3-1_hppa.deb
> >>>> linux-image-3.10-1-parisc64-smp_3.10.3-1_hppa.deb
> >>>> linux-image-3.10-1-parisc64_3.10.3-1_hppa.deb
> >>>> linux-image-3.10-1-parisc_3.10.3-1_hppa.deb
> >>>
> >>> That's fantastic!
> >>> This brings us one big step further to being able to build a real
> >>> debian-unstable-installer boot CD.
> >>>
> >>> I'm still hoping the C8000 patches I pushed for inclusion into 3.11
> >>> will then
> >>> show up in stable 3.10 series soon as well. If that happens we will
> >>> have a kernel
> >>> which should boot on all machines - including the c8000.
> >>
> >>
> >> I have bootstrap tested the linux-image-3.10-1-parisc64-
> >> smp_3.10.3-1_hppa.deb package.  We'll
> >> have to see if 3.10 will be the Debian choice for the next release.
> >>
> >> As I mentioned in private, I have found that flush_cache_all() is the
> >> principal problem causing random
> >> segmentation faults on SMP systems.
> >
> > That would tend to indicate the architectural flush code is wrong: it
> > isn't flushing all as it should be.
> 
> 
> After looking at this, I think there is an irq problem.  It looks like  
> we loose IPI
> interrupts on occasion,

I don't really think this can be the case.  Our flushes are all done via
the generic function on_each_cpu() with wait set to true.  If we were
losing IPIs, this would cause the wait to wait forever and you should
see a system hang (or at least one CPU spinning in cpu_relax while it
waits).  on_each_cpu() uses a list to process and store invocations, so
even two simultaneous calls to the flush functions should be strictly
sequenced on each cpu.

>  or there is a sequencing issue in processing  
> them.
> In particular, it would be bad if we simultaneously tried to purge  
> both theTLB
> and cache at the same time.  However, this isn't the whole answer.

I can't really see how: the architectural TLB flush will, of course,
purge TLBs in the tmpalias region, but they'll just refill on the next
access for a flush, so I could see simultaneous TLB flush and cache
flush slowing each other down, but I can't see a problem arising, unless
I've missed something?

James


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10.08.2013, 18:07, "John David Anglin" <dave.anglin@bell.net>:
> On 10-Aug-13, at 2:00 AM, gnidorah@p0n4ik.tk wrote:
>
>>> =9AI'm not sure if it makes much sense to use a PA-RISC
>>> =9Amachine as desktop machine nowadays. Every Intel-based
>>> =9Amachine is faster, cheaper, better supported (graphic cards)
>>> =9Aand uses less power...
>> =9AGot your point.
>> =9AThat's true. Still would be nice to use workstation model
>> =9Aas workstation.
>
> Yes, it's a bit of a cop out.
>
> I still tend to think the bug is in the firmware load. =9AIs there an=
y
> external way to confirm that it loads
> correctly (e.g., a led on card)? =9AThe error indicates that the comm=
and
> processor (CP) isn't working.
>
> There is a manual "Radeon R5xx Acceleration" that might help debug.
>
> Dave
> --
> John David Anglin dave.anglin@bell.net

Dave,
=46orgive me for being silent.

Unfortunately, i'm not seeing a presence of any 'works ok' marker.

Thanks for the manual! I've only read a tech note on drm radeon interna=
ls:
http://www.botchco.com/agd5f/?p=3D50
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=46orgot CC to the list

16.08.2013, 09:25, "Alex Ivanov" <gnidorah@p0n4ik.tk>:

15.08.2013, 03:36, "John David Anglin" <dave.anglin@bell.net>:

> =9AOn 10-Aug-13, at 3:56 PM, Alex Ivanov wrote:
>>> =9A=9AI've tried this one and many other things (except the messing=
 with
>>> =9A=9Aendianness) so far. The error is
>>> =9A=9Astill there.
> =9AAlex, I don't know which distro your using but I built and uploade=
d a
> =9Anew debian build of mesa and some packages it
> =9Adepends on to the parisc archive. =9AMesa and the open source ATI =
driver
> =9Abuild without problems on parisc. =9AHowever, this
> =9Athread suggests we need to go backwards to resolve the endian issu=
es:
> =9Ahttp://forums.gentoo.org/viewtopic-p-7128758.html
>
> =9AI have a RV100 in my rp3440 that I may play a bit with if I get a
> =9Achance.
>
> =9AWhile this might be a kernel issue, I suggest that the bug needs t=
o be
> =9Afiled on the relevant distro package list and
> =9Amaybe on the package source list as well.
>
> =9ADave
> =9A--
> =9AJohn David Anglin dave.anglin@bell.net

Dave,

I'm on a Debian.
The problem is that the same issue happens with framebuffer console too
(new kernels use radeon drm for this purpose, instead of radeonfb), whi=
ch
resides in kernel.
The console comes unnacelerated and is the same slow as X.
So yes, this seems to be a kernel issue.
-------- =FA=C1=D7=C5=D2=DB=C5=CE=C9=C5 =D0=C5=D2=C5=D3=D9=CC=C1=C5=CD=CF=
=C7=CF =D3=CF=CF=C2=DD=C5=CE=C9=D1 --------
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04.08.2013, 00:41, "Helge Deller" <deller@gmx.de>:
> I've prepared a bootable image and some instructions on how to install
> debian-unstable from our repository, but you should only try this if you are a
> linux/parisc expert.  Brave people will find those instructions here:
> http://wiki.parisc-linux.org/Debian_Ports_Installation For all others I'd
> suggest to wait until we have the debian-installer finished, which is still one
> of my top-priorities.

Helge,

Thanks for the image and an updated guide. Now i was able to deploy
from stratch in minutes (not counting the time spent on debootstrap process).
No more pokering with Gentoo live cd for doing debootstrap, like i did before :-)

Guys, thank you for your hard work!
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On Wed, 14 Aug 2013 00:54:00 +0200
Jeroen Roovers <jer@gentoo.org> wrote:

> On Tue, 13 Aug 2013 23:29:42 +0200
> Helge Deller <deller@gmx.de> wrote:
> 
> > > [1] https://bugs.gentoo.org/show_bug.cgi?id=480268
> > 
> > In the Linux kernel we use the compat layer for 32bit syscalls on
> > 64bit kernel: arch/parisc/kernel/syscall_table.S:
> > ENTRY_COMP(fanotify_mark) which means we call (with 32bit userspace
> > on 64bit kernel):
> > fs/notify/fanotify/fanotify_user.c:COMPAT_SYSCALL_DEFINE6(fanotify_mark,
> > int, fanotify_fd, unsigned int, flags, __u32, mask0, __u32, mask1,
> > int, dfd, const char  __user *, pathname) which has 6 parameters.
> > 
> > So, I assume you need one more "i" in this line here (change i:iiiis
> > -> i:iiiiis {to 5 i's}):
> 
> I tried that too with a similarly bad result

After the 5 i patch =and= recompiling fatrace, fanotify_mark() now works
properly. Which brings me no closer to systemd support on HPPA, I'm
afraid, but at least systemd now installs properly. I'm working on
writing up another e-mail about the next hurdle[1] systemd presents us.


     jer


[1] Sneak preview: https://bugs.gentoo.org/show_bug.cgi?id=482214
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__get_cpu_var() is used for multiple purposes in the kernel source. One of them is
address calculation via the form &__get_cpu_var(x). This calculates the address for
the instance of the percpu variable of the current processor based on an offset.

Others usage cases are for storing and retrieving data from the current processors percpu area.
__get_cpu_var() can be used as an lvalue when writing data or on the right side of an assignment.

__get_cpu_var() is defined as :


#define __get_cpu_var(var) (*this_cpu_ptr(&(var)))



__get_cpu_var() always only does a address determination. However, store and retrieve operations
could use a segment prefix (or global register on other platforms) to avoid the address calculation.

this_cpu_write() and this_cpu_read() can directly take an offset into a percpu area and use
optimized assembly code to read and write per cpu variables.


This patch converts __get_cpu_var into either and explicit address calculation using this_cpu_ptr()
or into a use of this_cpu operations that use the offset. Thereby address calcualtions are avoided
and less registers are used when code is generated.

At the end of the patchset all uses of __get_cpu_var have been removed so the macro is removed too.

The patchset includes passes over all arches as well. Once these operations are used throughout then
specialized macros can be defined in non -x86 arches as well in order to optimize per cpu access by
f.e. using a global register that may be set to the per cpu base.




Transformations done to __get_cpu_var()


1. Determine the address of the percpu instance of the current processor.

	DEFINE_PER_CPU(int, y);
	int *x = &__get_cpu_var(y);

    Converts to

	int *x = this_cpu_ptr(&y);


2. Same as #1 but this time an array structure is involved.

	DEFINE_PER_CPU(int, y[20]);
	int *x = __get_cpu_var(y);

    Converts to

	int *x = this_cpu_ptr(y);


3. Retrieve the content of the current processors instance of a per cpu variable.

	DEFINE_PER_CPU(int, u);
	int x = __get_cpu_var(y)

   Converts to

	int x = __this_cpu_read(y);


4. Retrieve the content of a percpu struct

	DEFINE_PER_CPU(struct mystruct, y);
	struct mystruct x = __get_cpu_var(y);

   Converts to

	memcpy(this_cpu_ptr(&y), x, sizeof(x));


5. Assignment to a per cpu variable

	DEFINE_PER_CPU(int, y)
	__get_cpu_var(y) = x;

   Converts to

	this_cpu_write(y, x);


6. Increment/Decrement etc of a per cpu variable

	DEFINE_PER_CPU(int, y);
	__get_cpu_var(y)++

   Converts to

	this_cpu_inc(y)



Index: linux/arch/parisc/lib/memcpy.c
===================================================================
--- linux.orig/arch/parisc/lib/memcpy.c	2013-08-26 13:28:53.000000000 -0500
+++ linux/arch/parisc/lib/memcpy.c	2013-08-26 13:30:41.656224744 -0500
@@ -470,7 +470,7 @@ static unsigned long pa_memcpy(void *dst
 		return 0;
 
 	/* if a load or store fault occured we can get the faulty addr */
-	d = &__get_cpu_var(exception_data);
+	d = this_cpu_ptr(&exception_data);
 	fault_addr = d->fault_addr;
 
 	/* error in load or store? */
Index: linux/arch/parisc/mm/fault.c
===================================================================
--- linux.orig/arch/parisc/mm/fault.c	2013-08-26 13:28:53.000000000 -0500
+++ linux/arch/parisc/mm/fault.c	2013-08-26 13:30:41.656224744 -0500
@@ -145,7 +145,7 @@ int fixup_exception(struct pt_regs *regs
 	fix = search_exception_tables(regs->iaoq[0]);
 	if (fix) {
 		struct exception_data *d;
-		d = &__get_cpu_var(exception_data);
+		d = this_cpu_ptr(&exception_data);
 		d->fault_ip = regs->iaoq[0];
 		d->fault_space = regs->isr;
 		d->fault_addr = regs->ior;


From - Thu Nov 08 21:09:36 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: fanotify_mark()
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On 08/26/2013 01:46 AM, Jeroen Roovers wrote:
> On Wed, 14 Aug 2013 00:54:00 +0200
> Jeroen Roovers <jer@gentoo.org> wrote:
> 
>> On Tue, 13 Aug 2013 23:29:42 +0200
>> Helge Deller <deller@gmx.de> wrote:
>>
>>>> [1] https://bugs.gentoo.org/show_bug.cgi?id=480268
>>>
>>> In the Linux kernel we use the compat layer for 32bit syscalls on
>>> 64bit kernel: arch/parisc/kernel/syscall_table.S:
>>> ENTRY_COMP(fanotify_mark) which means we call (with 32bit userspace
>>> on 64bit kernel):
>>> fs/notify/fanotify/fanotify_user.c:COMPAT_SYSCALL_DEFINE6(fanotify_mark,
>>> int, fanotify_fd, unsigned int, flags, __u32, mask0, __u32, mask1,
>>> int, dfd, const char  __user *, pathname) which has 6 parameters.
>>>
>>> So, I assume you need one more "i" in this line here (change i:iiiis
>>> -> i:iiiiis {to 5 i's}):
>>
>> I tried that too with a similarly bad result
> 
> After the 5 i patch =and= recompiling fatrace, fanotify_mark() now works
> properly.

Great!
I didn't checked, but will the "5 i" work on 32bit too? Don't think so...

> Which brings me no closer to systemd support on HPPA, I'm
> afraid, but at least systemd now installs properly. I'm working on
> writing up another e-mail about the next hurdle[1] systemd presents us.
> [1] Sneak preview: https://bugs.gentoo.org/show_bug.cgi?id=482214

Did you already filed this signal-problem upstream as suggested in comment #3 (https://bugs.gentoo.org/show_bug.cgi?id=482214#c3)?

Helge

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On 26-Aug-13, at 5:27 PM, Helge Deller wrote:

>> Which brings me no closer to systemd support on HPPA, I'm
>> afraid, but at least systemd now installs properly. I'm working on
>> writing up another e-mail about the next hurdle[1] systemd presents  
>> us.
>> [1] Sneak preview: https://bugs.gentoo.org/show_bug.cgi?id=482214
>
> Did you already filed this signal-problem upstream as suggested in  
> comment #3 (https://bugs.gentoo.org/show_bug.cgi?id=482214#c3)?


I believe two of the signal numbers come from HP-UX.

Dave
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Cc: Jiri Kosina <trivial@kernel.org>,
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On Thursday 25 July 2013 14:53:25 Joe Perches wrote:
> Using 0x%# emits 0x0x.  Only one is necessary.

sounds like a job for checkpatch.pl :)
-mike

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From - Thu Nov 08 21:09:36 2018
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Cc: Jiri Kosina <trivial@kernel.org>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	John Stultz <john.stultz@linaro.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Daniele Venzano <venza@brownhat.org>,
	Andi Kleen <andi@firstfloor.org>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.de>,
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To: Mike Frysinger <vapier@gentoo.org>
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On Tue, 2013-08-27 at 01:39 -0400, Mike Frysinger wrote:
> On Thursday 25 July 2013 14:53:25 Joe Perches wrote:
> > Using 0x%# emits 0x0x.  Only one is necessary.
> 
> sounds like a job for checkpatch.pl :)

Here.  Submit it yourself...
---
 scripts/checkpatch.pl | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 9ba4fc4..520f8e7 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3869,6 +3869,18 @@ sub process {
 			}
 		}
 
+# check for formats with "0x%#"
+		if ($line =~ /"X*"/) {
+			my $fmt = get_quoted_string($line, $rawline);
+			if ($fmt =~ /0x%#/) {
+				if (WARN("REDUNDANT_HEX",
+					 "Redundant hex prefix 0x format\n" . $herecurr) &&
+				    $fix) {
+					$fixed[$linenr - 1] =~ s/0x%#/%#/g;
+				}
+			}
+		}
+
 # Check for misused memsets
 		if ($^V && $^V ge 5.10.0 &&
 		    defined $stat &&



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On Mon, 26 Aug 2013 23:27:39 +0200
Helge Deller <deller@gmx.de> wrote:

> > After the 5 i patch =and= recompiling fatrace, fanotify_mark() now
> > works properly.
> 
> Great!
> I didn't checked, but will the "5 i" work on 32bit too? Don't think
> so...

Yes, that works too.


     jer
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Subject: systemd real-time signals choices clash with Linux/PARISC available
 SIGRT range, WAS: fanotify_mark()
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On Mon, 26 Aug 2013 18:37:54 -0400
John David Anglin <dave.anglin@bell.net> wrote:

> On 26-Aug-13, at 5:27 PM, Helge Deller wrote:
> >> [1] Sneak preview: https://bugs.gentoo.org/show_bug.cgi?id=482214
> >
> > Did you already filed this signal-problem upstream as suggested in  
> > comment #3 (https://bugs.gentoo.org/show_bug.cgi?id=482214#c3)?

Well, there are two ways to resolve this problem, and seeing who is
developing systemd and seeing the generous way the "available" signal
range is used, I'm pretty doubtful about changes there.

As I said in comment #2, that range could be compacted (a lot) and then
fit easily on any future platform. Since it was a design choice even
reflected in man pages[1] ("[...], SIGRTMIN+29   Sets the log level to
[...]"), I'm very afraid they will not change it easily.

> I believe two of the signal numbers come from HP-UX.

#define SIGXCPU         33
#define SIGXFSZ         34
#define SIGSTKFLT       36

According to [2], SIGSTKFLT isn't used.

Do we still support HP-UX? I have never seen a binary for it I could
try with, but then maybe I never went looking for one, either. :)


     jer


[1] http://www.freedesktop.org/software/systemd/man/systemd.html
[2]
http://h21007.www2.hp.com/portal/download/files/unprot/STK/Linux_STK/impacts/i60.html
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Subject: Re: systemd real-time signals choices clash with Linux/PARISC available
 SIGRT range, WAS: fanotify_mark()
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On 8/27/2013 11:26 AM, John David Anglin wrote:
> Can we change _NSIG to 69 so there are 32 RT signals as on other arches?
It looks like it needs to be a power of 2.  MIPS uses 128.

Dave

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Subject: Re: systemd real-time signals choices clash with Linux/PARISC available
 SIGRT range, WAS: fanotify_mark()
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On 8/27/2013 10:46 AM, Jeroen Roovers wrote:
> On Mon, 26 Aug 2013 18:37:54 -0400
> John David Anglin <dave.anglin@bell.net> wrote:
>
>> On 26-Aug-13, at 5:27 PM, Helge Deller wrote:
>>>> [1] Sneak preview: https://bugs.gentoo.org/show_bug.cgi?id=482214
>>> Did you already filed this signal-problem upstream as suggested in
>>> comment #3 (https://bugs.gentoo.org/show_bug.cgi?id=482214#c3)?
> Well, there are two ways to resolve this problem, and seeing who is
> developing systemd and seeing the generous way the "available" signal
> range is used, I'm pretty doubtful about changes there.
>
> As I said in comment #2, that range could be compacted (a lot) and then
> fit easily on any future platform. Since it was a design choice even
> reflected in man pages[1] ("[...], SIGRTMIN+29   Sets the log level to
> [...]"), I'm very afraid they will not change it easily.
>
>> I believe two of the signal numbers come from HP-UX.
> #define SIGXCPU         33
> #define SIGXFSZ         34
The signal numbers for these two signals come from HP-UX but the signals 
are used
by Linux, so I can't see how they can change.
> #define SIGSTKFLT       36
>
> According to [2], SIGSTKFLT isn't used.
This signal isn't used by HP-UX but it is used by Linux, so again this 
can't change.

Can we change _NSIG to 69 so there are 32 RT signals as on other arches?

>
> Do we still support HP-UX? I have never seen a binary for it I could
> try with, but then maybe I never went looking for one, either. :)
Doesn't really matter...
>
>
>       jer
>
>
> [1] http://www.freedesktop.org/software/systemd/man/systemd.html
> [2]
> http://h21007.www2.hp.com/portal/download/files/unprot/STK/Linux_STK/impacts/i60.html
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From - Thu Nov 08 21:09:37 2018
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From - Thu Nov 08 21:09:37 2018
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From: Christoph Lameter <cl@linux.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: [gcv v3 33/35] parisc: Replace __get_cpu_var uses
Date: Wed, 28 Aug 2013 20:06:37 +0000
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To: Tejun Heo <tj@kernel.org>
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__get_cpu_var() is used for multiple purposes in the kernel source. One of them is
address calculation via the form &__get_cpu_var(x). This calculates the address for
the instance of the percpu variable of the current processor based on an offset.

Other use cases are for storing and retrieving data from the current processors percpu area.
__get_cpu_var() can be used as an lvalue when writing data or on the right side of an assignment.

__get_cpu_var() is defined as :


#define __get_cpu_var(var) (*this_cpu_ptr(&(var)))



__get_cpu_var() always only does an address determination. However, store and retrieve operations
could use a segment prefix (or global register on other platforms) to avoid the address calculation.

this_cpu_write() and this_cpu_read() can directly take an offset into a percpu area and use
optimized assembly code to read and write per cpu variables.


This patch converts __get_cpu_var into either an explicit address calculation using this_cpu_ptr()
or into a use of this_cpu operations that use the offset. Thereby address calcualtions are avoided
and less registers are used when code is generated.

At the end of the patchset all uses of __get_cpu_var have been removed so the macro is removed too.

The patchset includes passes over all arches as well. Once these operations are used throughout then
specialized macros can be defined in non -x86 arches as well in order to optimize per cpu access by
f.e. using a global register that may be set to the per cpu base.




Transformations done to __get_cpu_var()


1. Determine the address of the percpu instance of the current processor.

	DEFINE_PER_CPU(int, y);
	int *x = &__get_cpu_var(y);

    Converts to

	int *x = this_cpu_ptr(&y);


2. Same as #1 but this time an array structure is involved.

	DEFINE_PER_CPU(int, y[20]);
	int *x = __get_cpu_var(y);

    Converts to

	int *x = this_cpu_ptr(y);


3. Retrieve the content of the current processors instance of a per cpu variable.

	DEFINE_PER_CPU(int, u);
	int x = __get_cpu_var(y)

   Converts to

	int x = __this_cpu_read(y);


4. Retrieve the content of a percpu struct

	DEFINE_PER_CPU(struct mystruct, y);
	struct mystruct x = __get_cpu_var(y);

   Converts to

	memcpy(this_cpu_ptr(&x), y, sizeof(x));


5. Assignment to a per cpu variable

	DEFINE_PER_CPU(int, y)
	__get_cpu_var(y) = x;

   Converts to

	this_cpu_write(y, x);


6. Increment/Decrement etc of a per cpu variable

	DEFINE_PER_CPU(int, y);
	__get_cpu_var(y)++

   Converts to

	this_cpu_inc(y)



Index: linux/arch/parisc/lib/memcpy.c
===================================================================
--- linux.orig/arch/parisc/lib/memcpy.c	2013-08-26 13:28:53.000000000 -0500
+++ linux/arch/parisc/lib/memcpy.c	2013-08-26 13:30:41.656224744 -0500
@@ -470,7 +470,7 @@ static unsigned long pa_memcpy(void *dst
 		return 0;
 
 	/* if a load or store fault occured we can get the faulty addr */
-	d = &__get_cpu_var(exception_data);
+	d = this_cpu_ptr(&exception_data);
 	fault_addr = d->fault_addr;
 
 	/* error in load or store? */
Index: linux/arch/parisc/mm/fault.c
===================================================================
--- linux.orig/arch/parisc/mm/fault.c	2013-08-26 13:28:53.000000000 -0500
+++ linux/arch/parisc/mm/fault.c	2013-08-26 13:30:41.656224744 -0500
@@ -145,7 +145,7 @@ int fixup_exception(struct pt_regs *regs
 	fix = search_exception_tables(regs->iaoq[0]);
 	if (fix) {
 		struct exception_data *d;
-		d = &__get_cpu_var(exception_data);
+		d = this_cpu_ptr(&exception_data);
 		d->fault_ip = regs->iaoq[0];
 		d->fault_space = regs->isr;
 		d->fault_addr = regs->ior;


From - Thu Nov 08 21:09:37 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Does there exists any 32bit-only PARISC SMP machines?
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Hi all,

I was asked by the debian kernel team to drop on parisc the UP kernels and only provide SMP kernels even for UP-machines.

For 64bit it might make sense to only ship a 64bit SMP kernel, but I'm not sure if it makes sense for 32bit kernels.
One major question would be, if there exists any 32bit parisc machines which support multiple CPUs at all?
If not, then it would make sense to drop the 32bit SMP kernels instead.  

So, are there any 32bit SMP machines out there?
Any other thoughts on this topic?

Thanks,
Helge
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From - Thu Nov 08 21:09:37 2018
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From: Jianguo Wu <wujianguo@huawei.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.sparc
Subject: [PATCH 4/4] mm/arch: use NUMA_NODE
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/5284>

Use more appropriate NUMA_NO_NODE instead of -1 in some archs' module_alloc()

Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
---
 arch/arm/kernel/module.c    |    2 +-
 arch/arm64/kernel/module.c  |    2 +-
 arch/mips/kernel/module.c   |    2 +-
 arch/parisc/kernel/module.c |    2 +-
 arch/s390/kernel/module.c   |    2 +-
 arch/sparc/kernel/module.c  |    2 +-
 arch/x86/kernel/module.c    |    2 +-
 7 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index 85c3fb6..8f4cff3 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -40,7 +40,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL_EXEC, -1,
+				GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index ca0e3d5..8f898bd 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -29,7 +29,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL_EXEC, -1,
+				    GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index 977a623..b507e07 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -46,7 +46,7 @@ static DEFINE_SPINLOCK(dbe_lock);
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULE_START, MODULE_END,
-				GFP_KERNEL, PAGE_KERNEL, -1,
+				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 2a625fb..50dfafc 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -219,7 +219,7 @@ void *module_alloc(unsigned long size)
 	 * init_data correctly */
 	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
 				    GFP_KERNEL | __GFP_HIGHMEM,
-				    PAGE_KERNEL_RWX, -1,
+				    PAGE_KERNEL_RWX, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 7845e15..b89b591 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -50,7 +50,7 @@ void *module_alloc(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL, -1,
+				    GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 #endif
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index 4435488..97655e0 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -29,7 +29,7 @@ static void *module_map(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL, -1,
+				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #else
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index 216a4d7..18be189 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -49,7 +49,7 @@ void *module_alloc(unsigned long size)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
 				GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
-				-1, __builtin_return_address(0));
+				NUMA_NO_NODE, __builtin_return_address(0));
 }
 
 #ifdef CONFIG_X86_32
-- 
1.7.1


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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Does there exists any 32bit-only PARISC SMP machines?
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On Thu, 2013-08-29 at 20:51 +0200, Helge Deller wrote:
> Hi all,
> 
> I was asked by the debian kernel team to drop on parisc the UP kernels
> and only provide SMP kernels even for UP-machines.

> For 64bit it might make sense to only ship a 64bit SMP kernel, but I'm
> not sure if it makes sense for 32bit kernels.
> One major question would be, if there exists any 32bit parisc machines
> which support multiple CPUs at all?
> If not, then it would make sense to drop the 32bit SMP kernels
> instead.  
> 
> So, are there any 32bit SMP machines out there?

Yes, the J class systems have some 32 bit only SMP boxes (well one, the
J210XC, I think) ... mostly with 7200 and above processors.

> Any other thoughts on this topic?

SMP will certainly work.  The main problem with SMP on UP is the
unnecessary spinlock cost.  I think given there's very few owners of J
class SMP 32 bit systems, 32 bit UP and 64 bit SMP is OK.

James


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From - Thu Nov 08 21:09:37 2018
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Subject: Re: [PATCH 4/4] mm/arch: use NUMA_NODE
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Cc linux-mm@kvack.org

On 2013/8/30 10:06, Jianguo Wu wrote:

> Use more appropriate NUMA_NO_NODE instead of -1 in some archs' module_alloc()
> 
> Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
> ---
>  arch/arm/kernel/module.c    |    2 +-
>  arch/arm64/kernel/module.c  |    2 +-
>  arch/mips/kernel/module.c   |    2 +-
>  arch/parisc/kernel/module.c |    2 +-
>  arch/s390/kernel/module.c   |    2 +-
>  arch/sparc/kernel/module.c  |    2 +-
>  arch/x86/kernel/module.c    |    2 +-
>  7 files changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
> index 85c3fb6..8f4cff3 100644
> --- a/arch/arm/kernel/module.c
> +++ b/arch/arm/kernel/module.c
> @@ -40,7 +40,7 @@
>  void *module_alloc(unsigned long size)
>  {
>  	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
> -				GFP_KERNEL, PAGE_KERNEL_EXEC, -1,
> +				GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
>  				__builtin_return_address(0));
>  }
>  #endif
> diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
> index ca0e3d5..8f898bd 100644
> --- a/arch/arm64/kernel/module.c
> +++ b/arch/arm64/kernel/module.c
> @@ -29,7 +29,7 @@
>  void *module_alloc(unsigned long size)
>  {
>  	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
> -				    GFP_KERNEL, PAGE_KERNEL_EXEC, -1,
> +				    GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
>  				    __builtin_return_address(0));
>  }
>  
> diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
> index 977a623..b507e07 100644
> --- a/arch/mips/kernel/module.c
> +++ b/arch/mips/kernel/module.c
> @@ -46,7 +46,7 @@ static DEFINE_SPINLOCK(dbe_lock);
>  void *module_alloc(unsigned long size)
>  {
>  	return __vmalloc_node_range(size, 1, MODULE_START, MODULE_END,
> -				GFP_KERNEL, PAGE_KERNEL, -1,
> +				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
>  				__builtin_return_address(0));
>  }
>  #endif
> diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
> index 2a625fb..50dfafc 100644
> --- a/arch/parisc/kernel/module.c
> +++ b/arch/parisc/kernel/module.c
> @@ -219,7 +219,7 @@ void *module_alloc(unsigned long size)
>  	 * init_data correctly */
>  	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
>  				    GFP_KERNEL | __GFP_HIGHMEM,
> -				    PAGE_KERNEL_RWX, -1,
> +				    PAGE_KERNEL_RWX, NUMA_NO_NODE,
>  				    __builtin_return_address(0));
>  }
>  
> diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
> index 7845e15..b89b591 100644
> --- a/arch/s390/kernel/module.c
> +++ b/arch/s390/kernel/module.c
> @@ -50,7 +50,7 @@ void *module_alloc(unsigned long size)
>  	if (PAGE_ALIGN(size) > MODULES_LEN)
>  		return NULL;
>  	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
> -				    GFP_KERNEL, PAGE_KERNEL, -1,
> +				    GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
>  				    __builtin_return_address(0));
>  }
>  #endif
> diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
> index 4435488..97655e0 100644
> --- a/arch/sparc/kernel/module.c
> +++ b/arch/sparc/kernel/module.c
> @@ -29,7 +29,7 @@ static void *module_map(unsigned long size)
>  	if (PAGE_ALIGN(size) > MODULES_LEN)
>  		return NULL;
>  	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
> -				GFP_KERNEL, PAGE_KERNEL, -1,
> +				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
>  				__builtin_return_address(0));
>  }
>  #else
> diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
> index 216a4d7..18be189 100644
> --- a/arch/x86/kernel/module.c
> +++ b/arch/x86/kernel/module.c
> @@ -49,7 +49,7 @@ void *module_alloc(unsigned long size)
>  		return NULL;
>  	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
>  				GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
> -				-1, __builtin_return_address(0));
> +				NUMA_NO_NODE, __builtin_return_address(0));
>  }
>  
>  #ifdef CONFIG_X86_32



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From - Thu Nov 08 21:09:37 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc debian kernel - missing  modules for C8000 - linux-image-3.10-2-parisc64-smp
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On 25-Aug-13, at 5:22 PM, Helge Deller wrote:

> Can you maybe try to enable those kernel options generally on the  
> 64bit SMP/UP kernels too (either as module or built-in):
>
> For the IDE CDROM:
> CONFIG_BLK_DEV_SIIMAGE=y
>
> For the built-in SCSI controller:
> CONFIG_FUSION=y
> CONFIG_FUSION_SPI=y
>
> Built-in NIC:
> CONFIG_E1000=y   (not CONFIG_E1000E)
>
> and for Radeon DRM:
> CONFIG_DRM_RADEON=y
> CONFIG_AGP=y
> CONFIG_AGP_PARISC=y
> CONFIG_VGA_ARB=y
> CONFIG_VGA_ARB_MAX_GPUS=16
> CONFIG_DRM=y
> CONFIG_DRM_KMS_HELPER=y
> CONFIG_DRM_TTM=y
> CONFIG_BACKLIGHT_LCD_SUPPORT=y  (<-- seems to be needed).


I added the above to my rp3440 config as modules.  Adding the above as  
built-in made the kernel too big
to link without using long calls.  This exposed a bug in 64-bit ld.   
It crashed linking trying to print "cannot reach"
errors.  This is fixed in the latest binutils upload to the archive  
and the binutils source.

With radeon support enabled, I get a consistent warning at kernel/ 
workqueue.c:1378.  See attached output
from dmesg.  Possibly, it has something to do with ring test failure.

Thoughts?

Dave
--
John David Anglin	dave.anglin@bell.net



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Linux version 3.11.0-rc7+ (dave@mx3210) (gcc version 4.8.1 (GCC) ) #1 SMP Sat Aug 31 11:35:56 EDT 2013
unwind_init: start = 0x405c9000, end = 0x405ffa40, entries = 13988
FP[0] enabled: Rev 1 Model 20
The 64-bit Kernel has started...
Default page size is 4KB.
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00008870 00000491 00000000 00000002 3e0505e7352af711 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 20 rev 4 (0x00000284)
capabilities 0x35
model 9000/800/rp3440  
parisc_cache_init: Only equivalent aliasing supported!
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
 1) Start 0x0000000100000000 End 0x00000001ffdfffff Size   4094 MB
 2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
Total Memory: 8190 MB
initrd: 7e1c6000-7ebee641
initrd: reserving 3e1c6000-3ebee641 (mem_max 1ffe00000)
On node 0 totalpages: 262144
free_area_init_node: node 0, pgdat 4061b900, node_mem_map 41725000
  Normal zone: 3584 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 262144 pages, LIFO batch:31
On node 1 totalpages: 1048064
free_area_init_node: node 1, pgdat 4061c5c0, node_mem_map 140000000
  Normal zone: 14329 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 1048064 pages, LIFO batch:31
On node 2 totalpages: 786432
free_area_init_node: node 2, pgdat 4061d280, node_mem_map 4080000000
  Normal zone: 10752 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 786432 pages, LIFO batch:31
PERCPU: Embedded 14 pages/cpu @000000004252e000 s26752 r8192 d22400 u57344
pcpu-alloc: s26752 r8192 d22400 u57344 alloc=14*4096
pcpu-alloc: [0] 00 [0] 01 [0] 02 [0] 03 [0] 04 [0] 05 [0] 06 [0] 07 
pcpu-alloc: [0] 08 [0] 09 [0] 10 [0] 11 [0] 12 [0] 13 [0] 14 [0] 15 
pcpu-alloc: [0] 16 [0] 17 [0] 18 [0] 19 [0] 20 [0] 21 [0] 22 [0] 23 
pcpu-alloc: [0] 24 [0] 25 [0] 26 [0] 27 [0] 28 [0] 29 [0] 30 [0] 31 
SMP: bootstrap CPU ID is 0
Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 2067975
Kernel command line: root=UUID=ac66c6a1-0b08-481d-a400-9fb6e7a49f1b console=ttyS1 HOME=/ rootfstype=xfs palo_kernel=2/vmlinuz
PID hash table entries: 4096 (order: 3, 32768 bytes)
Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
Sorting __ex_table...
Memory: 8223672K/8386560K available (4167K kernel code, 886K rwdata, 732K rodata, 256K init, 398K bss, 162888K reserved)
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x0000004140000000   (266240 MB)
      .init : 0x0000000040790000 - 0x00000000407d0000   ( 256 kB)
      .data : 0x0000000040511c18 - 0x00000000406a64d0   (1618 kB)
      .text : 0x0000000040100000 - 0x0000000040511c18   (4167 kB)
Hierarchical RCU implementation.
NR_IRQS:128
Console: colour dummy device 160x64
------------------------
| Locking API testsuite:
----------------------------------------------------------------------------
                                 | spin |wlock |rlock |mutex | wsem | rsem |
  --------------------------------------------------------------------------
                     A-A deadlock:failed|failed|  ok  |failed|failed|failed|
                 A-B-B-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-B-C-C-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-C-A-B-C deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-B-C-C-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-C-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
                    double unlock:failed|failed|failed|  ok  |failed|failed|
                  initialize held:failed|failed|failed|failed|failed|failed|
                 bad unlock order:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
  --------------------------------------------------------------------------
              recursive read-lock:             |  ok  |             |failed|
           recursive read-lock #2:             |  ok  |             |failed|
            mixed read-write-lock:             |failed|             |failed|
            mixed write-read-lock:             |failed|             |failed|
  --------------------------------------------------------------------------
     hard-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     hard-irqs-on + irq-safe-A/21:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/21:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/12:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/21:failed|failed|  ok  |
         hard-safe-A + irqs-on/12:failed|failed|  ok  |
         soft-safe-A + irqs-on/12:failed|failed|  ok  |
         hard-safe-A + irqs-on/21:failed|failed|  ok  |
         soft-safe-A + irqs-on/21:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/321:failed|failed|  ok  |
      hard-irq lock-inversion/123:failed|failed|  ok  |
      soft-irq lock-inversion/123:failed|failed|  ok  |
      hard-irq lock-inversion/132:failed|failed|  ok  |
      soft-irq lock-inversion/132:failed|failed|  ok  |
      hard-irq lock-inversion/213:failed|failed|  ok  |
      soft-irq lock-inversion/213:failed|failed|  ok  |
      hard-irq lock-inversion/231:failed|failed|  ok  |
      soft-irq lock-inversion/231:failed|failed|  ok  |
      hard-irq lock-inversion/312:failed|failed|  ok  |
      soft-irq lock-inversion/312:failed|failed|  ok  |
      hard-irq lock-inversion/321:failed|failed|  ok  |
      soft-irq lock-inversion/321:failed|failed|  ok  |
      hard-irq read-recursion/123:  ok  |
      soft-irq read-recursion/123:  ok  |
      hard-irq read-recursion/132:  ok  |
      soft-irq read-recursion/132:  ok  |
      hard-irq read-recursion/213:  ok  |
      soft-irq read-recursion/213:  ok  |
      hard-irq read-recursion/231:  ok  |
      soft-irq read-recursion/231:  ok  |
      hard-irq read-recursion/312:  ok  |
      soft-irq read-recursion/312:  ok  |
      hard-irq read-recursion/321:  ok  |
      soft-irq read-recursion/321:  ok  |
  --------------------------------------------------------------------------
  | Wound/wait tests |
  ---------------------
                  ww api failures:  ok  |  ok  |  ok  |
               ww contexts mixing:failed|  ok  |
             finishing ww context:  ok  |  ok  |  ok  |  ok  |
               locking mismatches:  ok  |  ok  |  ok  |
                 EDEADLK handling:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
           spinlock nest unlocked:failed|
  -----------------------------------------------------
                                 |block | try  |context|
  -----------------------------------------------------
                          context:failed|  ok  |  ok  |
                              try:failed|  ok  |failed|
                            block:failed|  ok  |failed|
                         spinlock:failed|  ok  |failed|
--------------------------------------------------------
153 out of 253 testcases failed, as expected. |
----------------------------------------------------
Calibrating delay loop... 1594.16 BogoMIPS (lpj=7970816)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 256
Brought up 1 CPUs
devtmpfs: initialized
atomic64 test passed
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Storm Peak Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x887, 0x00004 }
2. Storm Peak Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x887, 0x00004 }
3. Storm Peak Slow at 0xfffffffffe798000 [152] { 0, 0x0, 0x887, 0x00004 }
4. Storm Peak Slow at 0xfffffffffe799000 [153] { 0, 0x0, 0x887, 0x00004 }
5. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
8. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
9. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
10. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
11. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
12. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
13. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
14. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
Enabling PDC_PAT chassis codes support v0.05
Releasing cpu 1 now, hpa=fffffffffe781000
FP[1] enabled: Rev 1 Model 20
Releasing cpu 2 now, hpa=fffffffffe798000
FP[2] enabled: Rev 1 Model 20
Releasing cpu 3 now, hpa=fffffffffe799000
FP[3] enabled: Rev 1 Model 20
CPU(s): 4 x PA8800 (Mako) at 800.013300 MHz
Whole cache flush 8999457 cycles, flushing 7143424 bytes 722653 cycles
Setting cache flush threshold to 2000000 (4 CPUs online)
SBA found Pluto 2.3 at 0xfffffffffed00000
Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
LBA 0:0: PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
pci_bus 0000:00: root bus resource [mem 0xffffffff80000000-0xffffffff8fffffff] (bus address [0x80000000-0x8fffffff])
pci_bus 0000:00: root bus resource [mem 0xffffff0004000000-0xffffff0fffffffff]
pci_bus 0000:00: root bus resource [bus 00-07]
pci 0000:00:01.0: [1033:0035] type 00 class 0x0c0310
pci 0000:00:01.0: reg 0x10: [mem 0xffffffff80002000-0xffffffff80002fff]
pci 0000:00:01.0: supports D1 D2
pci 0000:00:01.0: PME# supported from D0 D1 D2 D3hot
pci 0000:00:01.1: [1033:0035] type 00 class 0x0c0310
pci 0000:00:01.1: reg 0x10: [mem 0xffffffff80001000-0xffffffff80001fff]
pci 0000:00:01.1: supports D1 D2
pci 0000:00:01.1: PME# supported from D0 D1 D2 D3hot
pci 0000:00:01.2: [1033:00e0] type 00 class 0x0c0320
pci 0000:00:01.2: reg 0x10: [mem 0xffffffff80000000-0xffffffff800000ff]
pci 0000:00:01.2: supports D1 D2
pci 0000:00:01.2: PME# supported from D0 D1 D2 D3hot
pci 0000:00:02.0: [1095:0649] type 00 class 0x01018f
pci 0000:00:02.0: reg 0x10: [io  0x0d18-0x0d1f]
pci 0000:00:02.0: reg 0x14: [io  0x0d24-0x0d27]
pci 0000:00:02.0: reg 0x18: [io  0x0d10-0x0d17]
pci 0000:00:02.0: reg 0x1c: [io  0x0d20-0x0d23]
pci 0000:00:02.0: reg 0x20: [io  0x0d00-0x0d0f]
pci 0000:00:02.0: supports D1 D2
Mercury version TR3.2 (0x32) found at 0xfffffffffed22000
LBA 0:1: PCI host bridge to bus 0000:20
pci_bus 0000:20: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
pci_bus 0000:20: root bus resource [mem 0xffffffff90000000-0xffffffff9fffffff] (bus address [0x90000000-0x9fffffff])
pci_bus 0000:20: root bus resource [mem 0xffffff1004000000-0xffffff1fffffffff]
pci_bus 0000:20: root bus resource [bus 20-27]
pci 0000:20:01.0: [1000:0021] type 00 class 0x010000
pci 0000:20:01.0: reg 0x10: [io  0x12100-0x121ff]
pci 0000:20:01.0: reg 0x14: [mem 0xffffffff90015000-0xffffffff900153ff 64bit]
pci 0000:20:01.0: reg 0x1c: [mem 0xffffffff90012000-0xffffffff90013fff 64bit]
pci 0000:20:01.0: supports D1 D2
pci 0000:20:01.1: [1000:0021] type 00 class 0x010000
pci 0000:20:01.1: reg 0x10: [io  0x12000-0x120ff]
pci 0000:20:01.1: reg 0x14: [mem 0xffffffff90014000-0xffffffff900143ff 64bit]
pci 0000:20:01.1: reg 0x1c: [mem 0xffffffff90010000-0xffffffff90011fff 64bit]
pci 0000:20:01.1: supports D1 D2
pci 0000:20:02.0: [14e4:1645] type 00 class 0x020000
pci 0000:20:02.0: reg 0x10: [mem 0xffffffff90000000-0xffffffff9000ffff 64bit]
pci 0000:20:02.0: PME# supported from D3hot D3cold
Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
LBA 0:2: PCI host bridge to bus 0000:40
pci_bus 0000:40: root bus resource [io  0x20000-0x2ffff] (bus address [0x0000-0xffff])
pci_bus 0000:40: root bus resource [mem 0xffffffffa0000000-0xffffffffafffffff] (bus address [0xa0000000-0xafffffff])
pci_bus 0000:40: root bus resource [mem 0xffffff2004000000-0xffffff2fffffffff]
pci_bus 0000:40: root bus resource [bus 40-47]
Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
LBA 0:3: PCI host bridge to bus 0000:60
pci_bus 0000:60: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0xffff])
pci_bus 0000:60: root bus resource [mem 0xffffffffb0000000-0xffffffffbfffffff] (bus address [0xb0000000-0xbfffffff])
pci_bus 0000:60: root bus resource [mem 0xffffff3004000000-0xffffff3fffffffff]
pci_bus 0000:60: root bus resource [bus 60-67]
Mercury version TR3.2 (0x32) found at 0xfffffffffed28000
LBA: lmmio_space [0xffffffffc0000000-0xffffffffdfffffff] - new
LBA 0:4: PCI host bridge to bus 0000:80
pci_bus 0000:80: root bus resource [io  0x40000-0x4ffff] (bus address [0x0000-0xffff])
pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffdfffffff] (bus address [0xc0000000-0xdfffffff])
pci_bus 0000:80: root bus resource [mem 0xffffff4004000000-0xffffff4fffffffff]
pci_bus 0000:80: root bus resource [bus 80-87]
Mercury version TR3.2 (0x32) found at 0xfffffffffed2c000
LBA 0:6: PCI host bridge to bus 0000:c0
pci_bus 0000:c0: root bus resource [io  0x50000-0x5ffff] (bus address [0x0000-0xffff])
pci_bus 0000:c0: root bus resource [mem 0xffffffffe0000000-0xffffffffefffffff] (bus address [0xe0000000-0xefffffff])
pci_bus 0000:c0: root bus resource [mem 0xffffff6004000000-0xffffff6fffffffff]
pci_bus 0000:c0: root bus resource [bus c0-c7]
Mercury version TR3.2 (0x32) found at 0xfffffffffed2e000
LBA: lmmio_space [0xfffffffff0000000-0xfffffffffe77ffff] - new
LBA 0:7: PCI host bridge to bus 0000:e0
pci_bus 0000:e0: root bus resource [io  0x60000-0x6ffff] (bus address [0x0000-0xffff])
pci_bus 0000:e0: root bus resource [mem 0xfffffffff0000000-0xfffffffffe77ffff] (bus address [0xf0000000-0xfe77ffff])
pci_bus 0000:e0: root bus resource [mem 0xffffff7004000000-0xffffff7fffffffff]
pci_bus 0000:e0: root bus resource [bus e0-e7]
pci 0000:e0:01.0: [103c:1290] type 00 class 0x078000
pci 0000:e0:01.0: reg 0x18: [mem 0xfffffffff4051000-0xfffffffff405100f]
pci 0000:e0:01.1: [103c:1048] type 00 class 0x070002
pci 0000:e0:01.1: reg 0x10: [mem 0xfffffffff4050000-0xfffffffff4050fff]
pci 0000:e0:01.1: reg 0x18: [mem 0xfffffffff4020000-0xfffffffff403ffff pref]
pci 0000:e0:02.0: [1002:5159] type 00 class 0x030000
pci 0000:e0:02.0: reg 0x10: [mem 0xfffffffff0000000-0xfffffffff3ffffff pref]
pci 0000:e0:02.0: reg 0x14: [io  0x6e000-0x6e0ff]
pci 0000:e0:02.0: reg 0x18: [mem 0xfffffffff4040000-0xfffffffff404ffff]
pci 0000:e0:02.0: reg 0x30: [mem 0xfffffffff4000000-0xfffffffff401ffff pref]
pci 0000:e0:02.0: supports D1 D2
powersw: Soft power switch support not available.
bio: create slab <bio-0> at 0
vgaarb: device added: PCI:0000:e0:02.0,decodes=io+mem,owns=io+mem,locks=none
vgaarb: loaded
vgaarb: bridge control possible 0000:e0:02.0
NET: Registered protocol family 2
TCP established hash table entries: 65536 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 65536 bind 65536)
TCP: reno registered
UDP hash table entries: 4096 (order: 5, 131072 bytes)
UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
PCI: CLS 64 bytes
Trying to unpack rootfs image as initramfs...
Freeing initrd memory: 10400K (000000007e1c6000 - 000000007ebee000)
Performance monitoring counters enabled for Storm Peak Slow
msgmni has been set to 16082
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 73) is a 16550A
0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 73) is a 16550A
console [ttyS1] enabled, bootconsole disabled
0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 73) is a 16550A
0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 73) is a 16550A
Linux agpgart interface v0.103
brd: module loaded
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
mousedev: PS/2 mouse device common for all mice
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
hidraw: raw HID events driver (C) Jiri Kosina
TCP: cubic registered
rtc-generic rtc-generic: setting system clock to 2013-08-31 16:09:46 UTC (1377965386)
Freeing unused kernel memory: 256K (0000000040790000 - 00000000407d0000)
udevd[890]: starting version 175
pps_core: LinuxPPS API ver. 1 registered
pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
SCSI subsystem initialized
PTP clock support registered
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
tg3.c:v3.132 (May 21, 2013)
libata version 3.00 loaded.
usbcore: registered new device driver usb
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
pata_cmd64x 0000:00:02.0: Secondary port is disabled
ehci-pci: EHCI PCI platform driver
scsi0 : pata_cmd64x
scsi1 : pata_cmd64x
ata1: PATA max UDMA/100 cmd 0xd18 ctl 0xd24 bmdma 0xd00 irq 69
ata2: DUMMY
pata_cmd64x: active 10 recovery 10 setup 3.
pata_cmd64x: active 10 recovery 10 setup 3.
ehci-pci 0000:00:01.2: EHCI Host Controller
ehci-pci 0000:00:01.2: new USB bus registered, assigned bus number 1
ehci-pci 0000:00:01.2: irq 68, io mem 0xffffffff80000000
ehci-pci 0000:00:01.2: USB 2.0 started, EHCI 0.95
usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: EHCI Host Controller
usb usb1: Manufacturer: Linux 3.11.0-rc7+ ehci_hcd
usb usb1: SerialNumber: 0000:00:01.2
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 5 ports detected
ata1.00: ATAPI: DW-224E, C.0B, max UDMA/33
pata_cmd64x: active 3 recovery 1 setup 1.
ata1.00: configured for UDMA/33
scsi 0:0:0:0: CD-ROM            TEAC     DW-224E          C.0B PQ: 0 ANSI: 5
usb 1-2: new high-speed USB device number 2 using ehci-pci
sr0: scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray
cdrom: Uniform CD-ROM driver Revision: 3.20
sr 0:0:0:0: Attached scsi CD-ROM sr0
usb 1-2: New USB device found, idVendor=1058, idProduct=0748
usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=5
usb 1-2: Product: My Passport 0748
usb 1-2: Manufacturer: Western Digital
usb 1-2: SerialNumber: 575836314542325A33383231
sr 0:0:0:0: Attached scsi generic sg0 type 5
usb-storage 1-2:1.0: USB Mass Storage device detected
scsi2 : usb-storage 1-2:1.0
usbcore: registered new interface driver usb-storage
tg3 0000:20:02.0 eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:30:6e:4b:16:4d
tg3 0000:20:02.0 eth0: attached PHY is 5701 (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0])
tg3 0000:20:02.0 eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[0]
tg3 0000:20:02.0 eth0: dma_rwctrl[76ff2d0f] dma_mask[32-bit]
sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 70
sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi3 : sym-2.2.3
scsi 2:0:0:0: Direct-Access     WD       My Passport 0748 1022 PQ: 0 ANSI: 6
scsi 2:0:0:0: Attached scsi generic sg1 type 0
sd 2:0:0:0: [sda] Spinning up disk...
scsi 3:0:0:0: Direct-Access     FUJITSU  MAJ3364MC        HP12 PQ: 0 ANSI: 2
scsi target3:0:0: tagged command queuing enabled, command queue depth 16.
scsi target3:0:0: Beginning Domain Validation
scsi target3:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
scsi target3:0:0: Ending Domain Validation
sd 3:0:0:0: Attached scsi generic sg2 type 0
sd 3:0:0:0: [sdb] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
sd 3:0:0:0: [sdb] Write Protect is off
sd 3:0:0:0: [sdb] Mode Sense: ab 00 10 08
....ready
sd 2:0:0:0: [sda] 3906963456 512-byte logical blocks: (2.00 TB/1.81 TiB)
sd 2:0:0:0: [sda] Write Protect is off
sd 2:0:0:0: [sda] Mode Sense: 47 00 10 08
sd 2:0:0:0: [sda] No Caching mode page present
sd 2:0:0:0: [sda] Assuming drive cache: write through
sd 2:0:0:0: [sda] No Caching mode page present
sd 2:0:0:0: [sda] Assuming drive cache: write through
 sda: sda1 sda2
sd 2:0:0:0: [sda] No Caching mode page present
sd 2:0:0:0: [sda] Assuming drive cache: write through
sd 2:0:0:0: [sda] Attached SCSI disk
sd 3:0:0:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA
 sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 sdb7 >
sd 3:0:0:0: [sdb] Attached SCSI disk
sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 71
sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi4 : sym-2.2.3
scsi 4:0:2:0: Direct-Access     SEAGATE  ST3300007LC      0005 PQ: 0 ANSI: 3
scsi target4:0:2: tagged command queuing enabled, command queue depth 16.
scsi target4:0:2: Beginning Domain Validation
scsi target4:0:2: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
scsi target4:0:2: Ending Domain Validation
sd 4:0:2:0: Attached scsi generic sg3 type 0
sd 4:0:2:0: [sdc] 585937500 512-byte logical blocks: (300 GB/279 GiB)
sd 4:0:2:0: [sdc] Write Protect is off
sd 4:0:2:0: [sdc] Mode Sense: ab 00 10 08
sd 4:0:2:0: [sdc] Write cache: disabled, read cache: enabled, supports DPO and FUA
 sdc: sdc1 sdc2 sdc3 sdc4 < sdc5 sdc6 sdc7 >
sd 4:0:2:0: [sdc] Attached SCSI disk
device-mapper: ioctl: 4.25.0-ioctl (2013-06-26) initialised: dm-devel@redhat.com
raid6: int64x1    796 MB/s
raid6: int64x2    994 MB/s
raid6: int64x4   1071 MB/s
raid6: int64x8   1016 MB/s
raid6: using algorithm int64x4 (1071 MB/s)
raid6: using intx1 recovery algorithm
xor: measuring software checksum speed
   8regs     :  3745.200 MB/sec
   8regs_prefetch:  2818.800 MB/sec
   32regs    :  3263.200 MB/sec
   32regs_prefetch:  2842.400 MB/sec
xor: using function: 8regs (3745.200 MB/sec)
bio: create slab <bio-1> at 1
Btrfs loaded
SGI XFS with ACLs, security attributes, realtime, large block/inode numbers, no debug enabled
XFS (sdc5): Mounting Filesystem
XFS (sdc5): Ending clean mount
udevd[1167]: starting version 175
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci-pci: OHCI PCI platform driver
ohci-pci 0000:00:01.0: OHCI PCI host controller
ohci-pci 0000:00:01.0: new USB bus registered, assigned bus number 2
ohci-pci 0000:00:01.0: irq 66, io mem 0xffffffff80002000
[drm] Initialized drm 1.1.0 20060810
usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb2: Product: OHCI PCI host controller
usb usb2: Manufacturer: Linux 3.11.0-rc7+ ohci_hcd
usb usb2: SerialNumber: 0000:00:01.0
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 3 ports detected
ohci-pci 0000:00:01.1: OHCI PCI host controller
ohci-pci 0000:00:01.1: new USB bus registered, assigned bus number 3
ohci-pci 0000:00:01.1: irq 67, io mem 0xffffffff80001000
[drm] radeon kernel modesetting enabled.
radeon 0000:e0:02.0: enabling SERR and PARITY (0187 -> 01c7)
[drm] initializing kernel modesetting (RV100 0x1002:0x5159 0x103C:0x1292).
[drm] register mmio base: 0xF4040000
[drm] register mmio size: 65536
[drm] GPU not posted. posting now...
radeon 0000:e0:02.0: VRAM: 64M 0xFFFFFFFFF0000000 - 0xFFFFFFFFF3FFFFFF (8M used)
radeon 0000:e0:02.0: GTT: 512M 0xFFFFFFFFD0000000 - 0xFFFFFFFFEFFFFFFF
[drm] Detected VRAM RAM=64M, BAR=64M
[drm] RAM width 64bits DDR
[TTM] Zone  kernel: Available graphics memory: 4117164 kiB
[TTM] Zone   dma32: Available graphics memory: 2097152 kiB
[TTM] Initializing pool allocator
[drm] radeon: 8M of VRAM memory ready
[drm] radeon: 512M of GTT memory ready.
[drm] GART: num cpu pages 131072, num gpu pages 131072
[drm] PCI GART of 512M enabled (table at 0x0000000042380000).
radeon 0000:e0:02.0: WB disabled
radeon 0000:e0:02.0: fence driver on ring 0 use gpu addr 0xffffffffd0000000 and cpu addr 0x000000007c712000
[drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[drm] Driver supports precise vblank timestamp query.
------------[ cut here ]------------
WARNING: at kernel/workqueue.c:1378
Modules linked in: radeon(+) cfbfillrect cfbimgblt cfbcopyarea i2c_algo_bit drm_kms_helper ttm drm i2c_core ohci_pci(+) ohci_hcd backlight xfs exportfs btrfs xor lzo_compress zlib_deflate raid6_pq crc32c libcrc32c dm_mod zalon7xx lasi700 53c700 hilkbd sd_mod crc_t10dif usb_storage sg sr_mod cdrom ehci_pci pata_cmd64x ehci_hcd sym53c8xx tg3 usbcore libata scsi_transport_spi ptp usb_common pps_core scsi_mod
CPU: 3 PID: 1218 Comm: modprobe Not tainted 3.11.0-rc7+ #1
task: 000000007f619038 ti: 000000007c51c000 task.ti: 000000007c51c000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001110 Not tainted
r00-03  000000000804000e 000000007c51d2b0 000000004015ec88 000000007c51d2b0
r04-07  0000000040768840 0000000042560d00 000000007c455f20 000000007c455f28
r08-11  000000007c51d350 000000007fc40600 0000000000000020 0000000000000020
r12-15  0000000000000003 0000000000000001 000000004078c040 000000007c51c288
r16-19  0000000000000050 0000000000000000 000000007c51c410 0000000000000000
usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb3: Product: OHCI PCI host controller
usb usb3: Manufacturer: Linux 3.11.0-rc7+ ohci_hcd
usb usb3: SerialNumber: 0000:00:01.1
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
r20-23  0000000000000000 4000000000000000 c800000000000000 f900000000000000
r24-27  000000007c455f20 000000007c455f20 000000004255d600 0000000040768840
r28-31  0000000000000001 000000007c51d350 000000007c51d380 0000000000000000
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000113000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004015ee5c 000000004015ee60
 IIR: 03ffe01f    ISR: 0000000010240000  IOR: 000000095755d600
 CPU:        3   CR30: 000000007c51c000 CR31: ffffffffffffffff
 ORIG_R28: 0000000000000001
 IAOQ[0]: __queue_work+0x2dc/0x360
 IAOQ[1]: __queue_work+0x2e0/0x360
 RP(r2): __queue_work+0x108/0x360
Backtrace:
 [<000000004015ef64>] queue_work_on+0x84/0xa8
 [<000000001df55dfc>] r100_irq_process+0x2ec/0x5d8 [radeon]
 [<000000001df48cc4>] radeon_driver_irq_preinstall_kms+0x16c/0x1a0 [radeon]
 [<000000001ce8d024>] drm_irq_install+0x11c/0x3c0 [drm]
 [<000000001df48f8c>] radeon_irq_kms_init+0x8c/0x168 [radeon]
 [<000000001df5aeac>] r100_startup+0x22c/0x3c8 [radeon]
 [<000000001df5b880>] r100_init+0x348/0x5c0 [radeon]
 [<000000001defbff4>] radeon_device_init+0x79c/0x9d0 [radeon]
 [<000000001deff588>] radeon_driver_load_kms+0xb8/0x1a8 [radeon]
 [<000000001ce9682c>] drm_get_pci_dev+0x28c/0x390 [drm]
 [<000000001def96e4>] radeon_pci_probe+0xcc/0x120 [radeon]
 [<000000004035fd24>] pci_device_probe+0xc4/0xf8
 [<00000000403d0f88>] really_probe+0xd0/0x328
 [<00000000403d1398>] __driver_attach+0x100/0x108
 [<00000000403ce240>] bus_for_each_dev+0xa0/0x100
 [<00000000403d087c>] driver_attach+0x34/0x48

---[ end trace e80e0a4cc6460a7f ]---
[drm] radeon: irq initialized.
[drm] Loading R100 Microcode
[drm] radeon: ring at 0xFFFFFFFFD0001000
[drm:r100_ring_test] *ERROR* radeon: ring test failed (scratch(0x15E4)=0xCAFEDEAD)
[drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22).
radeon 0000:e0:02.0: failed initializing CP (-22).
radeon 0000:e0:02.0: Disabling GPU acceleration
[drm] radeon: cp finalized
[drm] No TV DAC info found in BIOS
[drm] Radeon Display Connectors
[drm] Connector 0:
[drm]   VGA-1
[drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
[drm]   Encoders:
[drm]     CRT1: INTERNAL_DAC1
[drm] Connector 1:
[drm]   DVI-I-1
[drm]   HPD1
[drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
[drm]   Encoders:
[drm]     CRT2: INTERNAL_DAC2
[drm]     DFP1: INTERNAL_TMDS1
radeon 0000:e0:02.0: No connectors reported connected with modes
[drm] Cannot find any crtc or sizes - going 1024x768
[drm] fb mappable at 0xFFFFFFFFF0040000
[drm] vram apper at 0xFFFFFFFFF0000000
[drm] size 786432
[drm] fb depth is 8
[drm]    pitch is 1024
Console: switching to colour frame buffer device 128x48
radeon 0000:e0:02.0: fb0: radeondrmfb frame buffer device
radeon 0000:e0:02.0: registered panic notifier
[drm] Initialized radeon 2.34.0 20080528 for 0000:e0:02.0 on minor 0
Adding 7815616k swap on /dev/sdc3.  Priority:-1 extents:1 across:7815616k 
XFS (sdc7): Mounting Filesystem
XFS (sdc7): Ending clean mount
XFS (sdc6): Mounting Filesystem
XFS (sdc6): Ending clean mount
XFS (sda1): Mounting Filesystem
XFS (sda1): Ending clean mount
NET: Registered protocol family 10
IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
tg3 0000:20:02.0 eth0: Link is up at 100 Mbps, full duplex
tg3 0000:20:02.0 eth0: Flow control is on for TX and on for RX
IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Loading iSCSI transport class v2.0-870.
iscsi: registered transport (tcp)
postgres (3599): /proc/3599/oom_adj is deprecated, please use /proc/3599/oom_score_adj instead.

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Subject: Re: parisc debian kernel - missing  modules for C8000 - linux-image-3.10-2-parisc64-smp
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On 31-Aug-13, at 1:13 PM, John David Anglin wrote:

> With radeon support enabled, I get a consistent warning at kernel/ 
> workqueue.c:1378.  See attached output
> from dmesg.  Possibly, it has something to do with ring test failure.


Found fix:
http://www.spinics.net/lists/dri-devel/msg44316.html

Ring test still fails.

Dave
--
John David Anglin	dave.anglin@bell.net



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On 21-Aug-13, at 1:57 PM, Carlos O'Donell wrote:

> On Tue, Aug 20, 2013 at 11:20 AM, John David Anglin
> <dave.anglin@bell.net> wrote:
>> Hi Carlos,
>>
>> Yes, it been there for many years but it doesn't use glibc's  
>> atomic.h.  It
>> directly
>> does light-weight system calls into kernel.  The implementation is  
>> very
>> similar to arm.
>> See: libgcc/config/pa/linux-atomic.c.
>>
>> Helge did the initial implementation and I have fixed a few bugs in  
>> it.
>>
>> I changed to using this atomic support in the qt4-x11 package  
>> because the
>> existing
>> ldcw based locking broke the qt4smoke package build.  I need to  
>> submit my
>> patch
>> somewhere.
>
> Awesome. Responded to Guy Martin with this info.


I noticed today that the /usr/bin/dot command was dropping core.  It  
generates several
threads when it runs.

Looking at one of the dumps, it turned out that the exception was in  
g_private_get.  This
involves various atomic operations.  Looking at the glib2.0 atomic  
implementation,
I see it depends on the GCC cpp define  
__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4.
Because of the library implementation, this symbol isn't being  
defined.  So, glib2.0's
atomic support isn't atomic.

I'm looking at a GCC change to define the above.  Maybe this will  
help.  The situation might
be similar for other packages.

Dave
--
John David Anglin	dave.anglin@bell.net



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Subject: Re: parisc debian kernel - missing  modules for C8000 - linux-image-3.10-2-parisc64-smp
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01.09.2013, =D7 18:48, John David Anglin <dave.anglin@bell.net> =CE=C1=D0=
=C9=D3=C1=CC(=C1):

> I had one boot instance where the initial ring test succeeded:
>=20
> [drm] radeon kernel modesetting enabled.radeon 0000:e0:02.0: enabling=
 SERR and PARITY (0187 -> 01c7)
> [drm] initializing kernel modesetting (RV100 0x1002:0x5159 0x103C:0x1=
292).
> [drm] register mmio base: 0xF4040000
> [drm] register mmio size: 65536
> [drm] GPU not posted. posting now...
> radeon 0000:e0:02.0: VRAM: 64M 0xFFFFFFFFF0000000 - 0xFFFFFFFFF3FFFFF=
=46 (8M used)
> radeon 0000:e0:02.0: GTT: 512M 0xFFFFFFFFD0000000 - 0xFFFFFFFFEFFFFFF=
=46
> [drm] Detected VRAM RAM=3D64M, BAR=3D64M
> [drm] RAM width 64bits DDR[TTM] Zone  kernel: Available graphics memo=
ry: 4117164 kiB
> [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
> [TTM] Initializing pool allocator
> [drm] radeon: 8M of VRAM memory ready
> [drm] radeon: 512M of GTT memory ready.
> [drm] GART: num cpu pages 131072, num gpu pages 131072
> [drm] PCI GART of 512M enabled (table at 0x00000000424C0000).
> radeon 0000:e0:02.0: WB disabled
> radeon 0000:e0:02.0: fence driver on ring 0 use gpu addr 0xffffffffd0=
000000 and cpu addr 0x000000007df2b000
> [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
> [drm] Driver supports precise vblank timestamp query.
> [drm] radeon: irq initialized.
> [drm] Loading R100 Microcode
> [drm] radeon: ring at 0xFFFFFFFFD0001000
> [drm] ring test succeeded in 0 usecs
> radeon 0000:e0:02.0: GPU lockup CP stall for more than 10000msec
> radeon 0000:e0:02.0: GPU lockup (waiting for 0x0000000000000001 last =
fence id 0x0000000000000000)
> [drm:r100_ib_test] *ERROR* radeon: fence wait failed (-45).
> [drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on GFX r=
ing (-45).
> [drm:radeon_device_init] *ERROR* ib ring test failed (-45).
> [drm] No TV DAC info found in BIOS
> [drm] Radeon Display Connectors
> [drm] Connector 0:
> [drm]   VGA-1
> [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
> [drm]   Encoders:
> [drm]     CRT1: INTERNAL_DAC1
> [drm] Connector 1:
> [drm]   DVI-I-1
> [drm]   HPD1
> [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
> [drm]   Encoders:
> [drm]     CRT2: INTERNAL_DAC2
> [drm]     DFP1: INTERNAL_TMDS1
> radeon 0000:e0:02.0: No connectors reported connected with modes
> [drm] Cannot find any crtc or sizes - going 1024x768
> [drm] fb mappable at 0xFFFFFFFFF0040000
> [drm] vram apper at 0xFFFFFFFFF0000000
> [drm] size 786432
> [drm] fb depth is 8
> [drm]    pitch is 1024
> Console: switching to colour frame buffer device 128x48
> radeon 0000:e0:02.0: fb0: radeondrmfb frame buffer device
> radeon 0000:e0:02.0: registered panic notifier
> [drm] Initialized radeon 2.34.0 20080528 for 0000:e0:02.0 on minor 0
>=20
> There may be some kind of timing issue.  I would swear that it didn't=
 take 10s for the "GPU
> lockup CP stall" message to occur.

Dave,

Passed ring test makes no sense there, as CP isn't working. If you'll j=
ust disable ring test function, you'll get
absolutely same output (aside of 'ring test succeeded').
I'm feeling these aren't timings but improperly initialized CP.--
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On 2-Sep-13, at 2:43 AM, gnidorah@p0n4ik.tk wrote:

>
> 01.09.2013, =D7 18:48, John David Anglin <dave.anglin@bell.net> =20
> =CE=C1=D0=C9=D3=C1=CC(=C1):
>
>> I had one boot instance where the initial ring test succeeded:
>>
>> [drm] radeon kernel modesetting enabled.radeon 0000:e0:02.0: =20
>> enabling SERR and PARITY (0187 -> 01c7)
>> [drm] initializing kernel modesetting (RV100 0x1002:0x5159 0x103C:=20
>> 0x1292).
>> [drm] register mmio base: 0xF4040000
>> [drm] register mmio size: 65536
>> [drm] GPU not posted. posting now...
>> radeon 0000:e0:02.0: VRAM: 64M 0xFFFFFFFFF0000000 - =20
>> 0xFFFFFFFFF3FFFFFF (8M used)
>> radeon 0000:e0:02.0: GTT: 512M 0xFFFFFFFFD0000000 - =20
>> 0xFFFFFFFFEFFFFFFF
>> [drm] Detected VRAM RAM=3D64M, BAR=3D64M
>> [drm] RAM width 64bits DDR[TTM] Zone  kernel: Available graphics =20
>> memory: 4117164 kiB
>> [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
>> [TTM] Initializing pool allocator
>> [drm] radeon: 8M of VRAM memory ready
>> [drm] radeon: 512M of GTT memory ready.
>> [drm] GART: num cpu pages 131072, num gpu pages 131072
>> [drm] PCI GART of 512M enabled (table at 0x00000000424C0000).
>> radeon 0000:e0:02.0: WB disabled
>> radeon 0000:e0:02.0: fence driver on ring 0 use gpu addr =20
>> 0xffffffffd0000000 and cpu addr 0x000000007df2b000
>> [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
>> [drm] Driver supports precise vblank timestamp query.
>> [drm] radeon: irq initialized.
>> [drm] Loading R100 Microcode
>> [drm] radeon: ring at 0xFFFFFFFFD0001000
>> [drm] ring test succeeded in 0 usecs
>> radeon 0000:e0:02.0: GPU lockup CP stall for more than 10000msec
>> radeon 0000:e0:02.0: GPU lockup (waiting for 0x0000000000000001 =20
>> last fence id 0x0000000000000000)
>> [drm:r100_ib_test] *ERROR* radeon: fence wait failed (-45).
>> [drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on GFX =
=20
>> ring (-45).
>> [drm:radeon_device_init] *ERROR* ib ring test failed (-45).
>> [drm] No TV DAC info found in BIOS
>> [drm] Radeon Display Connectors
>> [drm] Connector 0:
>> [drm]   VGA-1
>> [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
>> [drm]   Encoders:
>> [drm]     CRT1: INTERNAL_DAC1
>> [drm] Connector 1:
>> [drm]   DVI-I-1
>> [drm]   HPD1
>> [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
>> [drm]   Encoders:
>> [drm]     CRT2: INTERNAL_DAC2
>> [drm]     DFP1: INTERNAL_TMDS1
>> radeon 0000:e0:02.0: No connectors reported connected with modes
>> [drm] Cannot find any crtc or sizes - going 1024x768
>> [drm] fb mappable at 0xFFFFFFFFF0040000
>> [drm] vram apper at 0xFFFFFFFFF0000000
>> [drm] size 786432
>> [drm] fb depth is 8
>> [drm]    pitch is 1024
>> Console: switching to colour frame buffer device 128x48
>> radeon 0000:e0:02.0: fb0: radeondrmfb frame buffer device
>> radeon 0000:e0:02.0: registered panic notifier
>> [drm] Initialized radeon 2.34.0 20080528 for 0000:e0:02.0 on minor 0
>>
>> There may be some kind of timing issue.  I would swear that it =20
>> didn't take 10s for the "GPU
>> lockup CP stall" message to occur.
>
> Dave,
>
> Passed ring test makes no sense there, as CP isn't working. If =20
> you'll just disable ring test function, you'll get
> absolutely same output (aside of 'ring test succeeded').
> I'm feeling these aren't timings but improperly initialized CP.--

You don't think it ran briefly and crashed?

I have a thought.  The code that loads the microcode appears to be =20
trying to load in 32-bit hunks.  Maybe
we have a 64-bit path on the bus and we need to load the firmware in =20
64-bit words.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: Domenico Andreoli <cavokz@gmail.com>
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On Fri, Aug 30, 2013 at 06:42:21AM +0400, James Bottomley wrote:
> On Thu, 2013-08-29 at 20:51 +0200, Helge Deller wrote:
> > Hi all,
> > 
> > I was asked by the debian kernel team to drop on parisc the UP kernels
> > and only provide SMP kernels even for UP-machines.
> 
> > For 64bit it might make sense to only ship a 64bit SMP kernel, but I'm
> > not sure if it makes sense for 32bit kernels.
> > One major question would be, if there exists any 32bit parisc machines
> > which support multiple CPUs at all?
> > If not, then it would make sense to drop the 32bit SMP kernels
> > instead.  
> > 
> > So, are there any 32bit SMP machines out there?
> 
> Yes, the J class systems have some 32 bit only SMP boxes (well one, the
> J210XC, I think) ... mostly with 7200 and above processors.

J5600 is SMP capable in both 32bit and 64bit mode.

> 
> > Any other thoughts on this topic?
> 
> SMP will certainly work.  The main problem with SMP on UP is the
> unnecessary spinlock cost.  I think given there's very few owners of J
> class SMP 32 bit systems, 32 bit UP and 64 bit SMP is OK.

mine doesn't boot 64bit SMP since 2.6.22. I've never been able to trace
it down but can confirm it happens also on more recent kernels.

at the moment, if I want SMP I need 32 bit.

Domenico
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Hi Domenico,

> J5600 is SMP capable in both 32bit and 64bit mode.
> mine doesn't boot 64bit SMP since 2.6.22. I've never been able to trace
> it down but can confirm it happens also on more recent kernels.

Could you please try a 64bit-SMP (stable series) 3.10 or 3.11 kernel?
I'm pretty sure your machine should now boot and work with a 64bit SMP kernel.
If not, please send your bootlog so that we can try to analyze.

Thanks,
Helge
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Subject: Re: Does there exists any 32bit-only PARISC SMP machines?
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On Thu, Aug 29, 2013 at 08:51:52PM +0200, Helge Deller wrote:
> So, are there any 32bit SMP machines out there?

Workstations:

J200, J210, J210XC

Server:

D250, D260, D270, D280, D350, D360
G70, H70, U70
K200, K210, K220

and some obscure beasts like T500, T520.

http://www.openpa.net/systems/index.html

has a good list.

I own an J200 with 2 CPUs. Never booted linux on it so far.

> Any other thoughts on this topic?

I'd skip supplying a 32bit SMP kernel package until there is a real demand
for it.

Thomas.

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On Wed, Sep 04, 2013 at 10:13:09AM +0200, Helge Deller wrote:
> Hi Domenico,

Helge,

> > J5600 is SMP capable in both 32bit and 64bit mode.
> > mine doesn't boot 64bit SMP since 2.6.22. I've never been able to trace
> > it down but can confirm it happens also on more recent kernels.
> 
> Could you please try a 64bit-SMP (stable series) 3.10 or 3.11 kernel?
> I'm pretty sure your machine should now boot and work with a 64bit SMP kernel.
> If not, please send your bootlog so that we can try to analyze.

yes, indeed. I realized aftewards I could have been more informative
here. thanks for supporting :)

I confirm that smp parisc64 v3.11 doesn't bring up both the cpus on my
system but at least it boots one, something that didn't happen in some
darker moments since 2.6.22.

similar "SMP: CPU:1 is stuck." happens also with debian v3.10-parisc64-smp kernel.

here is the full boot log:


Firmware Version 5.0                                                                                                              

Duplex Console IO Dependent Code (IODC) revision 1                                                                                

------------------------------------------------------------------------------                                                    
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved                                                          
------------------------------------------------------------------------------                                                    

  Processor   Speed            State           Coprocessor State  I/D Cache                                                       
  ---------  --------   ---------------------  -----------------  -------------                                                   
      0      552 MHz    Active                 Functional         512 kB/1 MB                                                     
      1      552 MHz    Idle                   Functional         512 kB/1 MB                                                     

  Central Bus Speed:                   120 MHz                                                                                    

  Available memory:             4294967296 bytes                                                                                  
  Good memory required:           31256576 bytes                                                                                  

  Primary boot path:    FWSCSI.3.0                                                                                                
  Alternate boot path:  FWSCSI.4.0                                                                                                
  Console path:         GRAPHICS(7)                                                                                               
  Keyboard path:        USB                                                                                                       

CPU 0                                                                                                                             
NOTICE :  Processor self-tests have been disabled because FASTBOOT is                                                             
          enabled.  To enable self-tests, disable FASTBOOT with the FASTBOOT                                                      
          command in the CONFIGURATION menu and reboot the system.                                                                
NOTICE :  Memory has been initialized but not tested because FASTBOOT is                                                          
          enabled.  To test memory, disable FASTBOOT with the FASTBOOT                                                            
          command in the CONFIGURATION menu and reboot the system.                                                                

CPU 1                                                                                                                             
NOTICE :  Processor self-tests have been disabled because FASTBOOT is                                                             
          enabled.  To enable self-tests, disable FASTBOOT with the FASTBOOT                                                      
          command in the CONFIGURATION menu and reboot the system.                                                                


Processor is booting from first available device.                                                                                 

To discontinue, press any key within 10 seconds.                                                                                  

10 seconds expired.                                                                                                               
Proceeding...                                                                                                                     

Searching for device(s) with bootable media...                                                                                    
This may take several minutes.                                                                                                    

To discontinue search, press any key (termination may not be immediate).                                                          

Attempting to boot Primary Path...                                                                                                

BOOTABLE DEVICE FOUND:                                                                                                            
   Path Number        Device Path              Device Type and Utilities                                                          
   -----------        -----------------        -------------------------                                                          
   P0                 FWSCSI.3.0               IBM-SSG H01D073                                                                    
                                               IPL                                                                                

Booting...                                                                                                                        
Boot IO Dependent Code (IODC) revision 0                                                                                          


HARD Booted.                                                                                                                      
palo ipl 1.91 root@c3000 Sat Jul  6 22:19:28 CEST 2013                                                                            

Partition Start(MB) End(MB) Id Type                                                                                               
1               1      31   f0 Palo                                                                                               
2              32     313   83 ext2                                                                                               
3             314   67068   83 ext2                                                                                               
4           67069   69515   82 swap                                                                                               

PALO(F0) partition contains:                                                                                                      
    0/vmlinux32 7312226(0) bytes @ 0x48000                                                                                        

Information: No console specified on kernel command line. This is normal.                                                         
PALO will choose the console currently used by firmware (serial).                                                                 
Command line for kernel: 'root=/dev/sda3 panic=60 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux'                          
Selected kernel: /vmlinux from partition 2                                                                                        
Selected ramdisk: /initrd.img from partition 2                                                                                    
ELF64 executable                                                                                                                  
Entry 00100000 first 00100000 n 4                                                                                                 
Segment 0 load 00100000 size 7086080 mediaptr 0x1000                                                                              
Segment 1 load 007f7680 size 596536 mediaptr 0x6c3680                                                                             
Segment 2 load 0088c000 size 138848 mediaptr 0x756000                                                                             
Segment 3 load 008ae000 size 38912 mediaptr 0x778000                                                                              
Loading ramdisk 2150813 bytes @ 3fde1000...                                                                                       
Branching to kernel entry point 0x00100000.  If this is the last                                                                  
message you see, you may need to switch your console.  This is                                                                    
a common symptom -- search the FAQ and mailing list at parisc-linux.org                                                           

[    0.000000] Linux version 3.11.0 (cavok@ska) (gcc version 4.8.1 (GCC) ) #6 SMP Wed Sep 4 12:12:41 CEST 2013                    
[    0.000000] unwind_init: start = 0x406b0000, end = 0x406eb800, entries = 15232                                                 
[    0.000000] FP[0] enabled: Rev 1 Model 16                                                                                      
[    0.000000] The 64-bit Kernel has started...                                                                                   
[    0.000000] Default page size is 4KB.                                                                                          
[    0.000000] bootconsole [ttyB0] enabled                                                                                        
[    0.000000] Initialized PDC Console for debugging.                                                                             
[    0.000000] Determining PDC firmware type: System Map.                                                                         
[    0.000000] model 00005d10 00000491 00000000 00000002 77b406fc 100000f0 00000008 000000b2 000000b2                             
[    0.000000] vers  00000300                                                                                                     
[    0.000000] CPUID vers 17 rev 10 (0x0000022a)                                                                                  
[    0.000000] capabilities 0x3                                                                                                   
[    0.000000] model 9000/785/J5600                                                                                               
[    0.000000] Memory Ranges:                                                                                                     
[    0.000000]  0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 MB                                                 
[    0.000000]  1) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 MB                                                 
[    0.000000] Total Memory: 4096 MB                                                                                              
[    0.000000] LCD display at fffffff0f05d0008,fffffff0f05d0000 registered                                                        
[    0.000000] PERCPU: Embedded 10 pages/cpu @0000000044487000 s10240 r8192 d22528 u40960                                         
[    0.000000] SMP: bootstrap CPU ID is 0                                                                                         
[    0.000000] Built 2 zonelists in Zone order, mobility grouping on.  Total pages: 1034240                                       
[    0.000000] Kernel command line: root=/dev/sda3 panic=60 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux                 
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)                                                               
[    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)                                                 
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)                                                   
[    0.000000] Sorting __ex_table...                                                                                              
[    0.000000] Memory: 4114408K/4194304K available (4838K kernel code, 1045K rwdata, 984K rodata, 176K init, 265K bss, 79896K res)
[    0.000000] virtual kernel memory layout:                                                                                      
    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)                                                   
    0.000000]     memory  : 0x0000000040000000 - 0x0000001140000000   (69632 MB)                                                  
    0.000000]       .init : 0x000000004088c000 - 0x00000000408b8000   ( 176 kB)                                                   
    0.000000]       .data : 0x00000000405b9a18 - 0x00000000407b5120   (2029 kB)                                                   
    0.000000]       .text : 0x0000000040100000 - 0x00000000405b9a18   (4838 kB)                                                   
[    0.000000] Hierarchical RCU implementation.                                                                                   
[    0.000000]  CONFIG_RCU_FANOUT set to non-default value of 32                                                                  
[    0.000000] NR_IRQS:80                                                                                                         
[    0.000000] Console: colour dummy device 160x64                                                                                
[    0.060000] Calibrating delay loop... 1099.36 BogoMIPS (lpj=5496832)                                                           
[    0.170000] pid_max: default: 32768 minimum: 301                                                                               
[    0.230000] Mount-cache hash table entries: 256                                                                                
[    0.290000] Brought up 1 CPUs                                                                                                  
[    0.340000] NET: Registered protocol family 16                                                                                 
[    0.400000] Searching for devices...                                                                                           
[    0.710000] Found devices:                                                                                                     
[    0.740000] 1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }                                     
[    0.850000] 2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }                                       
[    0.960000] 3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }                                       
[    1.060000] 4. Elroy PCI Bridge at 0xfffffffffed34000 [10/2] { 13, 0x0, 0x782, 0x0000a }                                       
[    1.170000] 5. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }                                       
[    1.280000] 6. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }                                       
[    1.380000] 7. Forte W+ 2w at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5d1, 0x00004 }                                               
[    1.480000] 8. Forte W+ 2w at 0xfffffffffffa2000 [34] { 0, 0x0, 0x5d1, 0x00004 }                                               
[    1.580000] 9. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09e, 0x00009 }                                                    
[    1.790000] Releasing cpu 1 now, hpa=fffffffffffa2000                                                                          
[    2.860000] SMP: CPU:1 is stuck.                                                                                               
[    2.900000] CPU(s): 2 x PA8600 (PCX-W+) at 552.000000 MHz                                                                      
[    2.970000] Setting cache flush threshold to 100000 (1 CPUs online)                                                            
[    3.180000] SBA found Astro 2.1 at 0xfffffffffed00000                                                                          
[    3.250000] Elroy version TR2.1 (0x2) found at 0xfffffffffed30000                                                              
[    3.330000] LBA 10:0: PCI host bridge to bus 0000:00                                                                           
[    3.400000] pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]                                                             
[    3.480000] pci_bus 0000:00: root bus resource [mem 0xfffffffff4000000-0xfffffffff47fffff] (bus address [0xf4000000-0xf47fffff)
[    3.630000] pci_bus 0000:00: root bus resource [bus 00]                                                                        
[    3.700000] PCI: Enabled native mode for NS87415 (pif=0x8f)                                                                    
[    3.780000] Elroy version TR2.1 (0x2) found at 0xfffffffffed32000                                                              
[    3.860000] LBA 10:1: PCI host bridge to bus 0000:01                                                                           
[    3.930000] pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])                             
[    4.040000] pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff)
[    4.200000] pci_bus 0000:01: root bus resource [bus 01]                                                                        
[    4.270000] Elroy version TR2.1 (0x2) found at 0xfffffffffed34000                                                              
[    4.350000] LBA 10:2: PCI host bridge to bus 0000:02                                                                           
[    4.420000] pci_bus 0000:02: root bus resource [io  0x24000-0x25fff] (bus address [0x4000-0x5fff])                             
[    4.540000] pci_bus 0000:02: root bus resource [mem 0xfffffffff5000000-0xfffffffff57fffff] (bus address [0xf5000000-0xf57fffff)
[    4.690000] pci_bus 0000:02: root bus resource [bus 02-04]                                                                     
[    4.770000] pci 0000:02:02.0: PCI bridge to [bus 03-ff]                                                                        
[    4.840000] pci 0000:02:02.0: address space collision: [io  0x0000-0x0fff] conflicts with PCI02 Ports [io  0x24000-0x25fff]    
[    4.990000] pci 0000:02:02.0: no compatible bridge window for [mem 0xf0100000-0xf01fffff pref]                                 
[    5.100000] pci 0000:02:02.0: no compatible bridge window for [??? 0x00000000 flags 0x0]                                       
[    5.220000] pci 0000:02:03.0: PCI bridge to [bus 04-ff]                                                                        
[    5.290000] pci 0000:02:03.0: address space collision: [io  0x0000-0x0fff] conflicts with PCI02 Ports [io  0x24000-0x25fff]    
[    5.430000] pci 0000:02:03.0: no compatible bridge window for [mem 0xf0100000-0xf01fffff pref]                                 
[    5.550000] pci 0000:02:03.0: no compatible bridge window for [??? 0x00000000 flags 0x0]                                       
[    5.650000] pci 0000:02:02.0: device not available (can't reserve [io  0x0000-0x0fff])                                         
[    5.760000] pci 0000:02:02.0: Error enabling bridge (-22), continuing                                                          
[    5.840000] pci 0000:02:03.0: device not available (can't reserve [io  0x0000-0x0fff])                                         
[    5.950000] pci 0000:02:03.0: Error enabling bridge (-22), continuing                                                          
[    6.030000] Elroy version TR2.1 (0x2) found at 0xfffffffffed38000                                                              
[    6.110000] LBA 10:4: PCI host bridge to bus 0000:05                                                                           
[    6.180000] pci_bus 0000:05: root bus resource [io  0x38000-0x39fff] (bus address [0x8000-0x9fff])                             
[    6.300000] pci_bus 0000:05: root bus resource [mem 0xfffffffff6000000-0xfffffffff67fffff] (bus address [0xf6000000-0xf67fffff)
[    6.450000] pci_bus 0000:05: root bus resource [bus 05]                                                                        
[    6.520000] Elroy version TR2.1 (0x2) found at 0xfffffffffed3c000                                                              
[    6.600000] LBA 10:6: PCI host bridge to bus 0000:06                                                                           
[    6.660000] pci_bus 0000:06: root bus resource [io  0x4c000-0x4dfff] (bus address [0xc000-0xdfff])                             
[    6.780000] pci_bus 0000:06: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff)
[    6.930000] pci_bus 0000:06: root bus resource [mem 0xfffffffff7000000-0xfffffffff77fffff] (bus address [0xf7000000-0xf77fffff)
[    7.090000] pci_bus 0000:06: root bus resource [bus 06]                                                                        
[    7.160000] iosapic: hpa not registered for 0000:06:07.0                                                                       
[    7.240000] powersw: Soft power switch at 0xfffffff0f0400804 enabled.                                                          
[    7.340000] bio: create slab <bio-0> at 0                                                                                      
[    7.400000] vgaarb: loaded                                                                                                     
[    7.430000] SCSI subsystem initialized                                                                                         
[    7.480000] usbcore: registered new interface driver usbfs                                                                     
[    7.560000] usbcore: registered new interface driver hub                                                                       
[    7.630000] usbcore: registered new device driver usb                                                                          
[    7.690000] Linux video capture interface: v2.00                                                                               
[    7.750000] Advanced Linux Sound Architecture Driver Initialized.                                                              
[    7.840000] Switched to clocksource cr16                                                                                       
[    7.900000] NET: Registered protocol family 2                                                                                  
[    7.960000] TCP established hash table entries: 32768 (order: 7, 524288 bytes)                                                 
[    8.060000] TCP bind hash table entries: 32768 (order: 7, 524288 bytes)                                                        
[    8.150000] TCP: Hash tables configured (established 32768 bind 32768)                                                         
[    8.230000] TCP: reno registered                                                                                               
[    8.280000] UDP hash table entries: 2048 (order: 4, 65536 bytes)                                                               
[    8.360000] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes)                                                          
[    8.440000] NET: Registered protocol family 1                                                                                  
[    8.500000] SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 20)                                                  
[    8.590000] SuperIO: Serial port 1 at 0x3f8                                                                                    
[    8.650000] SuperIO: Serial port 2 at 0x2f8                                                                                    
[    8.700000] SuperIO: Parallel port at 0x378                                                                                    
[    8.760000] SuperIO: Floppy controller at 0x3f0                                                                                
[    8.820000] SuperIO: ACPI at 0x7e0                                                                                             
[    8.860000] SuperIO: USB regulator enabled                                                                                     
[    8.980000] pci 0000:01:05.0: enabling SERR and PARITY (0017 -> 0157)                                                          
[    9.060000] pci 0000:01:05.1: enabling SERR and PARITY (0017 -> 0157)                                                          
[    9.140000] pci 0000:01:05.2: enabling SERR and PARITY (0017 -> 0157)                                                          
[    9.230000] Enabling PDC chassis warnings support v0.05                                                                        
[    9.300000] Performance monitoring counters enabled for Forte W+ 2w                                                            
[    9.390000] msgmni has been set to 8035                                                                                        
[    9.440000] alg: No test for stdrng (krng)                                                                                     
[    9.490000] io scheduler noop registered                                                                                       
[    9.540000] io scheduler deadline registered (default)                                                                         
[    9.620000] PDC Stable Storage facility v0.30                                                                                  
[    9.980000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled                                                            
[   10.070000] serial8250: ttyS0 at I/O 0x3f8 (irq = 3) is a 16550A                                                               
[   10.150000] console [ttyS0] enabled, bootconsole disabled                                                                      
[   10.150000] console [ttyS0] enabled, bootconsole disabled                                                                      
[   10.280000] serial8250: ttyS1 at I/O 0x2f8 (irq = 4) is a 16550A                                                               
[   10.370000] brd: module loaded                                                                                                 
[   10.400000] loop: module loaded                                                                                                
[   10.640000] sym0: <896> rev 0x4 at pci 0000:00:0f.0 irq 21                                                                     
[   10.700000] sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking                                                         
[   10.780000] sym0: SCSI BUS has been reset.                                                                                     
[   10.840000] sym0: SCSI BUS mode change from SE to SE.                                                                          
[   10.840000] sym0: SCSI BUS has been reset.                                                                                     
[   10.950000] scsi0 : sym-2.2.3                                                                                                  
[   16.540000] sym1: <896> rev 0x4 at pci 0000:00:0f.1 irq 21                                                                     
[   16.610000] sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking                                                        
[   16.690000] sym1: SCSI BUS has been reset.                                                                                     
[   16.750000] scsi1 : sym-2.2.3                                                                                                  
[   20.570000] scsi target1:0:3: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)                                                
[   20.670000] scsi 1:0:3:0: Direct-Access     IBM-SSG  H01D073          RSQH PQ: 0 ANSI: 3                                       
[   20.760000] scsi target1:0:3: tagged command queuing enabled, command queue depth 16.                                          
[   20.860000] scsi target1:0:3: Beginning Domain Validation                                                                      
[   20.980000] scsi target1:0:3: Domain Validation skipping write tests                                                           
[   21.050000] scsi target1:0:3: Ending Domain Validation                                                                         
[   21.120000] scsi target1:0:4: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)                                                
[   21.220000] scsi 1:0:4:0: Direct-Access     IBM-SSG  H01D073          RSQK PQ: 0 ANSI: 3                                       
[   21.310000] scsi target1:0:4: tagged command queuing enabled, command queue depth 16.                                          
[   21.410000] scsi target1:0:4: Beginning Domain Validation                                                                      
[   21.520000] scsi target1:0:4: Domain Validation skipping write tests                                                           
[   21.600000] scsi target1:0:4: Ending Domain Validation                                                                         
[   21.660000] scsi 1:0:5:0: Direct-Access     QUANTUM  ATLAS10K-18LVD   HP06 PQ: 0 ANSI: 3                                       
[   21.760000] scsi target1:0:5: tagged command queuing enabled, command queue depth 16.                                          
[   21.860000] scsi target1:0:5: Beginning Domain Validation                                                                      
[   21.920000] scsi target1:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)                                                
[   22.010000] scsi target1:0:5: Domain Validation skipping write tests                                                           
[   22.090000] scsi target1:0:5: Ending Domain Validation                                                                         
[   22.160000] scsi 1:0:6:0: Direct-Access     FUJITSU  MAJ3182MC        HP12 PQ: 0 ANSI: 2                                       
[   22.250000] scsi target1:0:6: tagged command queuing enabled, command queue depth 16.                                          
[   22.350000] scsi target1:0:6: Beginning Domain Validation                                                                      
[   22.420000] scsi target1:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)                                                
[   22.510000] scsi target1:0:6: Domain Validation skipping write tests                                                           
[   22.580000] scsi target1:0:6: Ending Domain Validation                                                                         
[   24.990000] sd 1:0:5:0: [sdc] 35566480 512-byte logical blocks: (18.2 GB/16.9 GiB)                                             
[   25.080000] sd 1:0:3:0: Attached scsi generic sg0 type 0                                                                       
[   25.150000] sd 1:0:4:0: Attached scsi generic sg1 type 0                                                                       
[   25.210000] sd 1:0:5:0: Attached scsi generic sg2 type 0                                                                       
[   25.280000] sd 1:0:6:0: Attached scsi generic sg3 type 0                                                                       
[   25.340000] tun: Universal TUN/TAP device driver, 1.6                                                                          
[   25.400000] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>                                                             
[   25.470000] 3c59x: Donald Becker and others.                                                                                   
[   25.530000] 0000:01:08.0: 3Com PCI 3c905C Tornado at 0000000000044000.                                                         
[   25.630000] sd 1:0:5:0: [sdc] Write Protect is off                                                                             
[   25.690000] sd 1:0:4:0: [sdb] 142368624 512-byte logical blocks: (72.8 GB/67.8 GiB)                                            
[   25.780000] sd 1:0:3:0: [sda] 142368624 512-byte logical blocks: (72.8 GB/67.8 GiB)                                            
[   25.870000] sd 1:0:6:0: [sdd] 35566480 512-byte logical blocks: (18.2 GB/16.9 GiB)                                             
[   25.960000] Linux Tulip driver version 1.1.15 (Feb 27, 2007)                                                                   
[   26.040000] tulip0: no phy info, aborting mtable build                                                                         
[   26.100000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1                                               
[   26.210000] net eth1: Digital DS21142/43 Tulip rev 65 at Port 0x1000, 00:10:83:cf:27:e7, IRQ 18                                
[   26.310000] sd 1:0:5:0: [sdc] Write cache: disabled, read cache: enabled, supports DPO and FUA                                 
[   26.410000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver                                                         
[   26.490000] ehci-pci: EHCI PCI platform driver                                                                                 
[   26.550000] ehci-pci 0000:01:05.2: enabling SERR and PARITY (0013 -> 0153)                                                     
[   26.630000] ehci-pci 0000:01:05.2: EHCI Host Controller                                                                        
[   26.690000] ehci-pci 0000:01:05.2: new USB bus registered, assigned bus number 1                                               
[   26.780000] ehci-pci 0000:01:05.2: irq 24, io mem 0xfffffffff4801000                                                           
[   26.860000] sd 1:0:4:0: [sdb] Write Protect is off                                                                             
[   26.910000] sd 1:0:3:0: [sda] Write Protect is off                                                                             
[   26.970000] sd 1:0:6:0: [sdd] Write Protect is off                                                                             
[   27.030000] ehci-pci 0000:01:05.2: USB 2.0 started, EHCI 0.95                                                                  
[   27.100000] sd 1:0:4:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA                                 
[   27.200000] sd 1:0:3:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA                                 
[   27.300000] sd 1:0:6:0: [sdd] Write cache: disabled, read cache: enabled, supports DPO and FUA                                 
[   27.410000] hub 1-0:1.0: USB hub found                                                                                         
[   27.450000] hub 1-0:1.0: 4 ports detected                                                                                      
[   27.500000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver                                                             
[   27.580000] ohci-pci: OHCI PCI platform driver                                                                                 
[   27.630000] ohci-pci 0000:00:0e.2: OHCI PCI host controller                                                                    
[   27.700000] ohci-pci 0000:00:0e.2: new USB bus registered, assigned bus number 2                                               
[   27.790000] ohci-pci 0000:00:0e.2: irq 1, io mem 0xfffffffff4007000                                                            
[   27.920000] hub 2-0:1.0: USB hub found                                                                                         
[   27.960000] hub 2-0:1.0: 3 ports detected                                                                                      
[   28.010000] uhci_hcd: USB Universal Host Controller Interface driver                                                           
[   28.090000] uhci_hcd 0000:01:05.0: enabling SERR and PARITY (0013 -> 0153)                                                     
[   28.170000] uhci_hcd 0000:01:05.0: UHCI Host Controller                                                                        
[   28.230000] uhci_hcd 0000:01:05.0: new USB bus registered, assigned bus number 3                                               
[   28.320000] uhci_hcd 0000:01:05.0: irq 22, io base 0x00012200                                                                  
[   28.390000] hub 3-0:1.0: USB hub found                                                                                         
[   28.440000] hub 3-0:1.0: 2 ports detected                                                                                      
[   28.500000] uhci_hcd 0000:01:05.1: Refused to change power state, currently in D3                                              
[   28.580000] uhci_hcd 0000:01:05.1: enabling SERR and PARITY (0013 -> 0153)                                                     
[   28.670000] uhci_hcd 0000:01:05.1: UHCI Host Controller                                                                        
[   28.730000] uhci_hcd 0000:01:05.1: new USB bus registered, assigned bus number 4                                               
[   28.820000] uhci_hcd 0000:01:05.1: irq 23, io base 0x00012100                                                                  
[   28.890000]  sdc: sdc1 sdc2 sdc3 sdc4                                                                                          
[   28.940000] hub 4-0:1.0: USB hub found                                                                                         
[   28.980000] hub 4-0:1.0: 2 ports detected                                                                                      
[   29.030000]  sdb: sdb1 sdb2 sdb3 sdb4                                                                                          
[   29.080000] usbcore: registered new interface driver usb-storage                                                               
[   29.150000] mousedev: PS/2 mouse device common for all mice                                                                    
[   29.220000] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0                                                  
[   29.680000] TCP: cubic registered                                                                                              
[   29.720000] NET: Registered protocol family 17                                                                                 
[   29.780000] sd 1:0:5:0: [sdc] Attached SCSI disk                                                                               
[   29.830000]  sda: sda1 sda2 sda3 sda4                                                                                          
[   29.880000]  sdd: sdd1 sdd2 sdd3 < sdd5 sdd6 >                                                                                 
[   29.940000] rtc-generic rtc-generic: setting system clock to 2013-09-04 13:51:21 UTC (1378302681)                              
[   30.040000] ALSA device list:                                                                                                  
[   30.080000]   #0: Analog Devices AD1889 at 0xfffffffff400c000 irq 19                                                           
[   30.270000] sd 1:0:4:0: [sdb] Attached SCSI disk                                                                               
[   30.340000] sd 1:0:6:0: [sdd] Attached SCSI disk                                                                               
[   30.510000] sd 1:0:3:0: [sda] Attached SCSI disk                                                                               
[   30.580000] REISERFS (device sda3): found reiserfs format "3.6" with standard journal                                          
[   30.670000] REISERFS (device sda3): using ordered data mode                                                                    
[   30.740000] reiserfs: using flush barriers                                                                                     
[   30.790000] REISERFS (device sda3): journal params: device sda3, size 8192, journal first block 18, max trans len 1024, max ba0
[   30.980000] REISERFS (device sda3): checking transaction log (sda3)                                                            
[   31.090000] REISERFS (device sda3): Using r5 hash to sort names                                                                
[   31.160000] VFS: Mounted root (reiserfs filesystem) readonly on device 8:3.                                                    
[   31.250000] Freeing unused kernel memory: 176K (000000004088c000 - 00000000408b8000)                                           
Mount failed for selinuxfs on /sys/fs/selinux:  No such file or directory                                                         
INIT: version 2.88 booting                                                                                                        
Using makefile-style concurrent boot in runlevel S.                                                                               
Starting the hotplug events dispatcher: udevd.                                                                                    
Synthesizing the initial hotplug events...done.                                                                                   
Waiting for /dev to be fully populated...[   35.260000] bttv: driver version 0.9.19 loaded                                        
[   35.310000] bttv: using 8 buffers with 2080k (520 pages) each for capture                                                      
[   35.400000] bttv: Bt8xx card found (0)                                                                                         
[   35.440000] bttv: 0: Bt878 (rev 17) at 0000:03:08.0, irq: 26, latency: 255, mmio: 0xfffffffff5007000                           
[   35.630000] bttv: 0: detected: Provideo PV150B-1 [card=98], PCI subsystem ID is aa04:1464                                      
[   35.730000] bttv: 0: using: ProVideo PV150 [card=98,autodetected]                                                              
[   35.800000] bttv: 0: tuner absent                                                                                              
[   35.840000] bttv: 0: Setting PLL: 28636363 => 35468950 (needs up to 100ms)                                                     
[   37.550000] bttv: PLL set ok                                                                                                   
[   37.580000] bttv: 0: registered device video0                                                                                  
[   37.630000] bttv: 0: registered device vbi0                                                                                    
[   37.760000] bttv: Bt8xx card found (1)                                                                                         
[   37.810000] bttv: 1: Bt878 (rev 17) at 0000:03:09.0, irq: 27, latency: 255, mmio: 0xfffffffff5005000                           
[   37.920000] bttv: 1: detected: Provideo PV150B-2 [card=98], PCI subsystem ID is aa05:1465                                      
[   38.020000] bttv: 1: using: ProVideo PV150 [card=98,autodetected]                                                              
[   38.090000] bttv: 1: tuner absent                                                                                              
[   38.130000] bttv: 1: Setting PLL: 28636363 => 35468950 (needs up to 100ms)                                                     
[   38.290000] bttv: PLL set ok                                                                                                   
[   38.320000] bttv: 1: registered device video1                                                                                  
[   38.370000] bttv: 1: registered device vbi1                                                                                    
[   38.470000] bttv: Bt8xx card found (2)                                                                                         
[   38.520000] bttv: 2: Bt878 (rev 17) at 0000:03:0a.0, irq: 28, latency: 255, mmio: 0xfffffffff5003000                           
[   38.630000] bttv: 2: detected: Provideo PV150B-3 [card=98], PCI subsystem ID is aa06:1466                                      
[   38.730000] bttv: 2: using: ProVideo PV150 [card=98,autodetected]                                                              
[   38.800000] bttv: 2: tuner absent                                                                                              
[   38.840000] bttv: 2: Setting PLL: 28636363 => 35468950 (needs up to 100ms)                                                     
[   38.960000] bttv: PLL set ok                                                                                                   
[   38.990000] bttv: 2: registered device video2                                                                                  
[   39.040000] bttv: 2: registered device vbi2                                                                                    
[   39.110000] bttv: Bt8xx card found (3)                                                                                         
[   39.160000] bttv: 3: Bt878 (rev 17) at 0000:03:0b.0, irq: 29, latency: 255, mmio: 0xfffffffff5001000                           
[   39.270000] bttv: 3: detected: Provideo PV150B-4 [card=98], PCI subsystem ID is aa07:1467                                      
[   39.360000] bttv: 3: using: ProVideo PV150 [card=98,autodetected]                                                              
[   39.440000] bttv: 3: tuner absent                                                                                              
[   39.480000] bttv: 3: Setting PLL: 28636363 => 35468950 (needs up to 100ms)                                                     
[   39.600000] bttv: PLL set ok                                                                                                   
[   39.630000] bttv: 3: registered device video3                                                                                  
[   39.680000] bttv: 3: registered device vbi3                                                                                    
[   39.740000] bttv: Bt8xx card found (4)                                                                                         
[   39.790000] bttv: 4: Bt878 (rev 17) at 0000:04:08.0, irq: 30, latency: 255, mmio: 0xfffffffff5107000                           
[   39.900000] bttv: 4: detected: Provideo PV150A-1 [card=98], PCI subsystem ID is aa00:1460                                      
[   40.000000] bttv: 4: using: ProVideo PV150 [card=98,autodetected]                                                              
[   40.070000] bttv: 4: tuner absent                                                                                              
[   40.110000] bttv: 4: Setting PLL: 28636363 => 35468950 (needs up to 100ms)                                                     
[   40.240000] bttv: PLL set ok                                                                                                   
[   40.270000] bttv: 4: registered device video4                                                                                  
[   40.320000] bttv: 4: registered device vbi4                                                                                    
[   40.380000] bttv: Bt8xx card found (5)                                                                                         
[   40.420000] bttv: 5: Bt878 (rev 17) at 0000:04:09.0, irq: 31, latency: 255, mmio: 0xfffffffff5105000                           
[   40.530000] bttv: 5: detected: Provideo PV150A-2 [card=98], PCI subsystem ID is aa01:1461                                      
[   40.630000] bttv: 5: using: ProVideo PV150 [card=98,autodetected]                                                              
[   40.700000] bttv: 5: tuner absent                                                                                              
[   40.740000] bttv: 5: Setting PLL: 28636363 => 35468950 (needs up to 100ms)                                                     
[   40.870000] bttv: PLL set ok                                                                                                   
[   40.900000] bttv: 5: registered device video5                                                                                  
[   40.950000] bttv: 5: registered device vbi5                                                                                    
[   41.010000] bttv: Bt8xx card found (6)                                                                                         
[   41.050000] bttv: 6: Bt878 (rev 17) at 0000:04:0a.0, irq: 32, latency: 255, mmio: 0xfffffffff5103000                           
[   41.160000] bttv: 6: detected: Provideo PV150A-3 [card=98], PCI subsystem ID is aa02:1462                                      
[   41.260000] bttv: 6: using: ProVideo PV150 [card=98,autodetected]                                                              
[   41.330000] bttv: 6: tuner absent                                                                                              
[   41.370000] bttv: 6: Setting PLL: 28636363 => 35468950 (needs up to 100ms)                                                     
[   41.500000] bttv: PLL set ok                                                                                                   
[   41.530000] bttv: 6: registered device video6                                                                                  
[   41.580000] bttv: 6: registered device vbi6                                                                                    
[   41.640000] bttv: Bt8xx card found (7)                                                                                         
[   41.680000] bttv: 7: Bt878 (rev 17) at 0000:04:0b.0, irq: 29, latency: 255, mmio: 0xfffffffff5101000                           
[   41.790000] bttv: 7: subsystem: 2201:1061 (UNKNOWN)                                                                            
[   41.850000] bttv: 7: using:  *** UNKNOWN/GENERIC ***  [card=0,autodetected]                                                    
[   41.970000] bttv: 7: tuner type unset
[   42.020000] bttv: 7: registered device video7
[   42.070000] bttv: 7: registered device vbi7
[   42.140000] IR keymap rc-hauppauge not found
[   42.200000] Registered IR keymap rc-empty
[   42.240000] input: i2c IR (Hauppauge) as /devices/virtual/rc/rc0/input0
[   42.320000] rc0: i2c IR (Hauppauge) as /devices/virtual/rc/rc0
[   42.390000] ir-kbd-i2c: i2c IR (Hauppauge) detected at i2c-7/7-0018/ir0 [bt878 #7 [sw]]

and here is the full config:

#
# Automatically generated file; DO NOT EDIT.
# Linux/parisc 3.11.0 Kernel Configuration
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_LOW_RES=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_FHANDLE is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_GENERIC_HARDIRQS=y

#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_PREEMPT_RCU is not set
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_FANOUT=32
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_NOCB_CPU is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=15
# CONFIG_CGROUPS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
CONFIG_UIDGID_CONVERTED=y
# CONFIG_UIDGID_STRICT_TYPE_CHECKS is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW=y
# CONFIG_EXPERT is not set
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_PCI_QUIRKS=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
CONFIG_USE_GENERIC_SMP_HELPERS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_CLONE_BACKWARDS=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
# CONFIG_IOSCHED_CFQ is not set
CONFIG_DEFAULT_DEADLINE=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="deadline"
CONFIG_BROKEN_RODATA=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
# CONFIG_MLONGCALLS is not set
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
# CONFIG_IRQSTACKS is not set
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
# CONFIG_ZBUD is not set
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_NR_CPUS=2

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
# CONFIG_GSC is not set
CONFIG_PCI=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set

#
# PCI host controller drivers
#
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_PDC_CHASSIS is not set
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_XFRM_USER is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_NET_IP_TUNNEL is not set
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_MMAP is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_NET_MPLS_GSO is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_DEVTMPFS is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
# CONFIG_DMA_SHARED_BUFFER is not set

#
# Bus devices
#
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=2
CONFIG_BLK_DEV_CRYPTOLOOP=m
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_BLK_DEV_SX8 is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=8192
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_RSXX is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ATMEL_SSC is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1780 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_BMP085_I2C is not set
# CONFIG_PCH_PHUB is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_SENSORS_LIS3_I2C is not set

#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=y
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_SCSI_BNX2X_FCOE is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_CHELSIO_FCOE is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
CONFIG_MII=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
CONFIG_TUN=y
# CONFIG_VETH is not set
# CONFIG_NLMON is not set
# CONFIG_ARCNET is not set

#
# CAIF transport drivers
#

#
# Distributed Switch Architecture drivers
#
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_MV88E6060 is not set
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
# CONFIG_NET_DSA_MV88E6131 is not set
# CONFIG_NET_DSA_MV88E6123_61_65 is not set
CONFIG_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
CONFIG_VORTEX=y
# CONFIG_TYPHOON is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_CADENCE is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_CALXEDA_XGMAC is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
# CONFIG_TULIP_MMIO is not set
# CONFIG_TULIP_NAPI is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EXAR is not set
# CONFIG_NET_VENDOR_HP is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_IP1000 is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_PACKET_ENGINE is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_SH_ETH is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_SFC is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PHYLIB is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_PCIPS2 is not set
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVKMEM is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=16
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
# CONFIG_SERIAL_8250_MANY_PORTS is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set
# CONFIG_SERIAL_8250_DW is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MFD_HSU is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_PCH_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
# CONFIG_I2C_COMPAT is not set
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EG20T is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PXA_PCI is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set
# CONFIG_HSI is not set

#
# PPS support
#
# CONFIG_PPS is not set

#
# PPS generators support
#

#
# PTP clock support
#
# CONFIG_PTP_1588_CLOCK is not set

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_GPIO_DEVRES=y
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_POWER_AVS is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_AS3711 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX77686 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SMSC is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_STMPE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS80031 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TC3589X is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_REGULATOR is not set
CONFIG_MEDIA_SUPPORT=y

#
# Multimedia core support
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
CONFIG_MEDIA_ANALOG_TV_SUPPORT=y
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
CONFIG_MEDIA_RC_SUPPORT=y
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_V4L2=y
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
CONFIG_VIDEO_TUNER=m
CONFIG_VIDEOBUF_GEN=m
CONFIG_VIDEOBUF_DMA_SG=m
# CONFIG_VIDEO_V4L2_INT_DEVICE is not set
# CONFIG_TTPCI_EEPROM is not set

#
# Media drivers
#
CONFIG_RC_CORE=y
# CONFIG_RC_MAP is not set
# CONFIG_RC_DECODERS is not set
# CONFIG_RC_DEVICES is not set
# CONFIG_MEDIA_USB_SUPPORT is not set
CONFIG_MEDIA_PCI_SUPPORT=y

#
# Media capture/analog TV support
#
# CONFIG_VIDEO_IVTV is not set
# CONFIG_VIDEO_ZORAN is not set
# CONFIG_VIDEO_HEXIUM_GEMINI is not set
# CONFIG_VIDEO_HEXIUM_ORION is not set
# CONFIG_VIDEO_MXB is not set

#
# Media capture/analog/hybrid TV support
#
# CONFIG_VIDEO_CX25821 is not set
# CONFIG_VIDEO_CX88 is not set
CONFIG_VIDEO_BT848=m
# CONFIG_VIDEO_SAA7134 is not set

#
# Supported MMC/SDIO adapters
#
CONFIG_VIDEO_BTCX=m
CONFIG_VIDEO_TVEEPROM=m
# CONFIG_CYPRESS_FIRMWARE is not set

#
# Media ancillary drivers (tuners, sensors, i2c, frontends)
#
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y
CONFIG_MEDIA_ATTACH=y
CONFIG_VIDEO_IR_I2C=y

#
# Audio decoders, processors and mixers
#
CONFIG_VIDEO_TVAUDIO=m
CONFIG_VIDEO_TDA7432=m
CONFIG_VIDEO_MSP3400=m

#
# RDS decoders
#
CONFIG_VIDEO_SAA6588=m

#
# Video decoders
#

#
# Video and audio decoders
#

#
# Video encoders
#

#
# Camera sensor devices
#

#
# Flash devices
#

#
# Video improvement chips
#

#
# Miscelaneous helper chips
#

#
# Sensors used on soc_camera driver
#
CONFIG_MEDIA_TUNER=y
CONFIG_MEDIA_TUNER_SIMPLE=y
CONFIG_MEDIA_TUNER_TDA8290=y
CONFIG_MEDIA_TUNER_TDA827X=y
CONFIG_MEDIA_TUNER_TDA18271=y
CONFIG_MEDIA_TUNER_TDA9887=y
CONFIG_MEDIA_TUNER_MT20XX=y
CONFIG_MEDIA_TUNER_XC2028=y
CONFIG_MEDIA_TUNER_XC5000=y
CONFIG_MEDIA_TUNER_XC4000=y
CONFIG_MEDIA_TUNER_MC44S803=y

#
# Tools to develop new frontends
#
# CONFIG_DVB_DUMMY_FE is not set

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
# CONFIG_EXYNOS_VIDEO is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
# CONFIG_STI_CONSOLE is not set
CONFIG_SOUND=y
# CONFIG_SOUND_OSS_CORE is not set
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
# CONFIG_SND_SEQUENCER is not set
# CONFIG_SND_MIXER_OSS is not set
# CONFIG_SND_PCM_OSS is not set
# CONFIG_SND_DYNAMIC_MINORS is not set
# CONFIG_SND_SUPPORT_OLD_API is not set
# CONFIG_SND_VERBOSE_PROCFS is not set
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_AC97_CODEC=y
# CONFIG_SND_DRIVERS is not set
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=y
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LOLA is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
# CONFIG_SND_USB is not set
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=y

#
# HID support
#
# CONFIG_HID is not set

#
# USB HID support
#
# CONFIG_USB_HID is not set
# CONFIG_HID_PID is not set

#
# I2C HID support
#
# CONFIG_I2C_HID is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_FUSBH200_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_CHIPIDEA is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_PHY is not set
# CONFIG_USB_GADGET is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
# CONFIG_RTC_DRV_DS2404 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y

#
# HID Sensor RTC drivers
#
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VIRT_DRIVERS is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_STAGING is not set

#
# Hardware Spinlock drivers
#
# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set

#
# Rpmsg drivers
#
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_EXT4_FS=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_FS_POSIX_ACL is not set
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=y
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=m
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_REDUCED=y
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=4096
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
# CONFIG_FRAME_POINTER is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y

#
# Memory Debugging
#
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_VM is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Lockups and Hangs
#
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_WRITECOUNT is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_RCU_CPU_STALL_INFO is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y

#
# Runtime Testing
#
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_RODATA is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_CMAC is not set
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_HW is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IO=y
# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
CONFIG_ZLIB_INFLATE=m
# CONFIG_XZ_DEC is not set
# CONFIG_XZ_DEC_BCJ is not set
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
# CONFIG_AVERAGE is not set
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set

Regards,
Domenico
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From: Domenico Andreoli <cavokz@gmail.com>
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Subject: Re: Re: Does there exists any 32bit-only PARISC SMP machines?
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On Wed, Sep 04, 2013 at 04:07:05PM +0200, Domenico Andreoli wrote:
> On Wed, Sep 04, 2013 at 10:13:09AM +0200, Helge Deller wrote:
> > Hi Domenico,
> 
> Helge,
> 
> > > J5600 is SMP capable in both 32bit and 64bit mode.
> > > mine doesn't boot 64bit SMP since 2.6.22. I've never been able to trace
> > > it down but can confirm it happens also on more recent kernels.
> > 
> > Could you please try a 64bit-SMP (stable series) 3.10 or 3.11 kernel?
> > I'm pretty sure your machine should now boot and work with a 64bit SMP kernel.
> > If not, please send your bootlog so that we can try to analyze.
> 
> yes, indeed. I realized aftewards I could have been more informative
> here. thanks for supporting :)
> 
> I confirm that smp parisc64 v3.11 doesn't bring up both the cpus on my
> system but at least it boots one, something that didn't happen in some
> darker moments since 2.6.22.
> 
> similar "SMP: CPU:1 is stuck." happens also with debian v3.10-parisc64-smp kernel.

BTW, this is the most detailed investigation I'm aware of:

https://lkml.org/lkml/2008/4/20/251

thanks,
Domenico
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From - Thu Nov 08 21:09:38 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Does there exists any 32bit-only PARISC SMP machines?
Date: Wed, 04 Sep 2013 11:41:03 -0400
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On 9/4/2013 10:28 AM, Domenico Andreoli wrote:
> BTW, this is the most detailed investigation I'm aware of:
>
> https://lkml.org/lkml/2008/4/20/251
I have the sense that MEM_RENDEZ_HI may not be set correctly for your 
machine:

         /* Set the smp rendezvous address into page zero.
         ** It would be safer to do this in init_smp_config() but
         ** it's just way easier to deal with here because
         ** of 64-bit function ptrs and the address is local to this file.
         */
         load32          PA(smp_slave_stext),%r10
         stw             %r10,0x10(%r0)  /* MEM_RENDEZ */
         stw             %r0,0x28(%r0)   /* MEM_RENDEZ_HI - assume addr 
< 4GB */

This is possibly due to a change in memory range detection:

--- dmesg.txt 2008-04-21 11:19:16.000000000 +0200
+++ dmesg2.txt 2008-04-21 15:27:46.000000000 +0200
@@ -1,6 +1,7 @@
-Linux version 2.6.22-3-parisc64-smp (Debian 2.6.22-6) (maks@debian.org) 
(gcc version 4.1.3 20071019 (prerelease) (Debian 4.1.2-17)) #2 SMP Mon 
Nov 12 21:04:20 CET 2007
+Linux version 2.6.25 (cavok@ska) (gcc version 4.1.3 20080308 
(prerelease) (Debian 4.1.2-21)) #8 SMP Mon Apr 21 12:25:50 CES8
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
+console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005d10 00000491 00000000 00000002 77b406fc 100000f0 00000008 
000000b2 000000b2
@@ -8,41 +9,28 @@
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x3
model 9000/785/J5600
-Memory Ranges:
- 0) Start 0x0000000000000000 End 0x00000000efffffff Size 3840 MB
- 1) Start 0x00000010f0000000 End 0x00000010ffffffff Size 256 MB
-Total Memory: 4096 MB
-initrd: 7fa75000-7ffee77e
-initrd: reserving 3fa75000-3ffee77e (mem_max 100000000)
-On node 0 totalpages: 983040
- Normal zone: 13440 pages used for memmap
- Normal zone: 0 pages reserved
- Normal zone: 969600 pages, LIFO batch:31
-On node 1 totalpages: 65536
- Normal zone: 896 pages used for memmap
- Normal zone: 0 pages reserved
- Normal zone: 64640 pages, LIFO batch:15
+Total Memory: 3840 MB

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:09:38 2018
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From: Alex Ivanov <gnidorah@p0n4ik.tk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc debian kernel - missing  modules for C8000 - linux-image-3.10-2-parisc64-smp
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02.09.2013, =D7 18:10, John David Anglin <dave.anglin@bell.net> =CE=C1=D0=
=C9=D3=C1=CC(=C1):

> You don't think it ran briefly and crashed?
>=20
> I have a thought.  The code that loads the microcode appears to be tr=
ying to load in 32-bit hunks.  Maybe
> we have a 64-bit path on the bus and we need to load the firmware in =
64-bit words.
>=20
> Dave
> --
> John David Anglin	dave.anglin@bell.net

Dave,

Am i understood you right?

--- r100.c.orig 2013-09-04 16:53:28.000000000 +0000
+++ r100.c      2013-09-04 18:28:23.000000000 +0000
@@ -1049,9 +1049,13 @@ static int r100_cp_init_microcode(struct
        return err;
 }
=20
+#define RADEON_CP_ME_RAM_DATAHL 0x07dc0x07e0
+
+void r100_mm_wregq(struct radeon_device *rdev, uint64_t reg, uint64_t =
v,
+                  bool always_indirect);
 static void r100_cp_load_microcode(struct radeon_device *rdev)
 {
-       const __be32 *fw_data;
+       const __be64 *fw_data;
        int i, size;
=20
        if (r100_gui_wait_for_idle(rdev)) {
@@ -1060,14 +1064,12 @@ static void r100_cp_load_microcode(struc
        }
=20
        if (rdev->me_fw) {
-               size =3D rdev->me_fw->size / 4;
-               fw_data =3D (const __be32 *)&rdev->me_fw->data[0];
+               size =3D rdev->me_fw->size / 8;
+               fw_data =3D (const __be64 *)&rdev->me_fw->data[0];
                WREG32(RADEON_CP_ME_RAM_ADDR, 0);
-               for (i =3D 0; i < size; i +=3D 2) {
-                       WREG32(RADEON_CP_ME_RAM_DATAH,
-                              be32_to_cpup(&fw_data[i]));
-                       WREG32(RADEON_CP_ME_RAM_DATAL,
-                              be32_to_cpup(&fw_data[i + 1]));
+               for (i =3D 0; i < size; i +=3D 1) {
+                       r100_mm_wregq(rdev, RADEON_CP_ME_RAM_DATAHL,
+                               be64_to_cpup(&fw_data[i]), false);
                }
        }
 }
@@ -4078,6 +4080,21 @@ void r100_mm_wreg(struct radeon_device *
        }
 }
=20
+void r100_mm_wregq(struct radeon_device *rdev, uint64_t reg, uint64_t =
v,
+                  bool always_indirect)
+{
+        if (reg < rdev->rmmio_size && !always_indirect)
+                writeq(v, ((void __iomem *)rdev->rmmio) + reg);
+        else {
+                unsigned long flags;
+
+                spin_lock_irqsave(&rdev->mmio_idx_lock, flags);
+                writeq(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_=
INDEX);
+                writeq(v, ((void __iomem *)rdev->rmmio) + RADEON_MM_DA=
TA);
+                spin_unlock_irqrestore(&rdev->mmio_idx_lock, flags);
+        }
+}
+
 u32 r100_io_rreg(struct radeon_device *rdev, u32 reg)
 {
        if (reg < rdev->rio_mem_size)

I'm not sure if this correct, but it didn't help.--
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Subject: Re: parisc debian kernel - missing  modules for C8000 - linux-image-3.10-2-parisc64-smp
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I meant 0x07dc07e0 not 0x07dc0x07e0 for sure...

04.09.2013, 22:34, "Alex Ivanov" <gnidorah@p0n4ik.tk>:
> 02.09.2013, =D7 18:10, John David Anglin <dave.anglin@bell.net> =CE=C1=
=D0=C9=D3=C1=CC(=C1):
>
>> =9AYou don't think it ran briefly and crashed?
>>
>> =9AI have a thought. =9AThe code that loads the microcode appears to=
 be trying to load in 32-bit hunks. =9AMaybe
>> =9Awe have a 64-bit path on the bus and we need to load the firmware=
 in 64-bit words.
>>
>> =9ADave
>> =9A--
>> =9AJohn David Anglin dave.anglin@bell.net
>
> Dave,
>
> Am i understood you right?
>
> --- r100.c.orig 2013-09-04 16:53:28.000000000 +0000
> +++ r100.c =9A=9A=9A=9A=9A2013-09-04 18:28:23.000000000 +0000
> @@ -1049,9 +1049,13 @@ static int r100_cp_init_microcode(struct
> =9A=9A=9A=9A=9A=9A=9A=9Areturn err;
> =9A}
>
> +#define RADEON_CP_ME_RAM_DATAHL 0x07dc0x07e0
> +
> +void r100_mm_wregq(struct radeon_device *rdev, uint64_t reg, uint64_=
t v,
> + =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Abool always_indi=
rect);
> =9Astatic void r100_cp_load_microcode(struct radeon_device *rdev)
> =9A{
> - =9A=9A=9A=9A=9A=9Aconst __be32 *fw_data;
> + =9A=9A=9A=9A=9A=9Aconst __be64 *fw_data;
> =9A=9A=9A=9A=9A=9A=9A=9Aint i, size;
>
> =9A=9A=9A=9A=9A=9A=9A=9Aif (r100_gui_wait_for_idle(rdev)) {
> @@ -1060,14 +1064,12 @@ static void r100_cp_load_microcode(struc
> =9A=9A=9A=9A=9A=9A=9A=9A}
>
> =9A=9A=9A=9A=9A=9A=9A=9Aif (rdev->me_fw) {
> - =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Asize =3D rdev->me_fw->siz=
e / 4;
> - =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Afw_data =3D (const __be32=
 *)&rdev->me_fw->data[0];
> + =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Asize =3D rdev->me_fw->siz=
e / 8;
> + =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Afw_data =3D (const __be64=
 *)&rdev->me_fw->data[0];
> =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9AWREG32(RADEON_CP_ME_R=
AM_ADDR, 0);
> - =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Afor (i =3D 0; i < size; i=
 +=3D 2) {
> - =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9AW=
REG32(RADEON_CP_ME_RAM_DATAH,
> - =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=
=9A=9A=9A=9A=9A=9Abe32_to_cpup(&fw_data[i]));
> - =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9AW=
REG32(RADEON_CP_ME_RAM_DATAL,
> - =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=
=9A=9A=9A=9A=9A=9Abe32_to_cpup(&fw_data[i + 1]));
> + =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Afor (i =3D 0; i < size; i=
 +=3D 1) {
> + =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Ar=
100_mm_wregq(rdev, RADEON_CP_ME_RAM_DATAHL,
> + =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=
=9A=9A=9A=9A=9A=9A=9Abe64_to_cpup(&fw_data[i]), false);
> =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A}
> =9A=9A=9A=9A=9A=9A=9A=9A}
> =9A}
> @@ -4078,6 +4080,21 @@ void r100_mm_wreg(struct radeon_device *
> =9A=9A=9A=9A=9A=9A=9A=9A}
> =9A}
>
> +void r100_mm_wregq(struct radeon_device *rdev, uint64_t reg, uint64_=
t v,
> + =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Abool always_indi=
rect)
> +{
> + =9A=9A=9A=9A=9A=9A=9Aif (reg < rdev->rmmio_size && !always_indirect=
)
> + =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Awriteq(v, ((void __iom=
em *)rdev->rmmio) + reg);
> + =9A=9A=9A=9A=9A=9A=9Aelse {
> + =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Aunsigned long flags;
> +
> + =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Aspin_lock_irqsave(&rde=
v->mmio_idx_lock, flags);
> + =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Awriteq(reg, ((void __i=
omem *)rdev->rmmio) + RADEON_MM_INDEX);
> + =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Awriteq(v, ((void __iom=
em *)rdev->rmmio) + RADEON_MM_DATA);
> + =9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9A=9Aspin_unlock_irqrestore=
(&rdev->mmio_idx_lock, flags);
> + =9A=9A=9A=9A=9A=9A=9A}
> +}
> +
> =9Au32 r100_io_rreg(struct radeon_device *rdev, u32 reg)
> =9A{
> =9A=9A=9A=9A=9A=9A=9A=9Aif (reg < rdev->rio_mem_size)
>
> I'm not sure if this correct, but it didn't help.--
> To unsubscribe from this list: send the line "unsubscribe linux-paris=
c" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at =9Ahttp://vger.kernel.org/majordomo-info.html
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From: Alex Ivanov <gnidorah@p0n4ik.tk>
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30.07.2013, 05:00, "Thomas Bogendoerfer" <tsbogend@alpha.franken.de>:
> We can't use dev->mod_index for selecting the interrupt routing entry,
> because it's not an index into interrupt routing table. It will be even
> wrong on a machine with 2 CPUs (4 cores). But all needed information is
> contained in the PAT entries for the serial ports. mod[0] contains the iosapic
> address and mod_info has some indications for the interrupt input (at least
> it looks like it). This patch implements the searching for the right iosapic
> and uses this interrupt input information.

Thomas,

Thanks for the fix! This indeed fixed serial on my c8000. Now, there is no
need to use PDC_CONSOLE on this machine anymore.
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Subject: Re: parisc debian kernel - missing  modules for C8000 - linux-image-3.10-2-parisc64-smp
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Should have just given link:
http://developer.amd.com/resources/documentation-articles/developer-guides-manuals/

It is listed near bottom as "R5xx Family 3D Programming Guide".

On 4-Sep-13, at 3:53 PM, John David Anglin wrote:

> Alex,
>
> That was the general idea although I was looking at the code in  
> radeon_cp.c.  I now think my suggestion
> was incorrect as the CP data is loaded via registers.
>
> After a bit of searching, I found a document which describes reading  
> and writing to MicroEngine RAM.
> See page 22.  I think we need to confirm after writing that we can  
> read back the control program
> successfully.


Dave
--
John David Anglin	dave.anglin@bell.net



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04.09.2013, 23:54, "John David Anglin" <dave.anglin@bell.net>:
> Alex,
>
> That was the general idea although I was looking at the code in
> radeon_cp.c. =9AI now think my suggestion
> was incorrect as the CP data is loaded via registers.
>
> After a bit of searching, I found a document which describes reading =
and
> writing to MicroEngine RAM.
> See page 22. =9AI think we need to confirm after writing that we can =
read
> back the control program
> successfully.
>
> Dave

I disregarded this too, though WREG32 macro name evidently says that
it does writing to registers.
I'm touching the r100.c, as they've opted out a radeon_cp.c one.

Good find! I though that it would be worth to check the load somehow,
as well. I've added the following piece after the load:

                WREG32(RADEON_CP_ME_RAM_RADDR, 0);
                for (i =3D 0; i < size; i +=3D 2) =20
                        if (RREG32(RADEON_CP_ME_RAM_DATAH)
                                !=3D be32_to_cpup(&fw_data[i]) ||
                                RREG32(RADEON_CP_ME_RAM_DATAL)
                                !=3D be32_to_cpup(&fw_data[i+1])) {
                                printk(KERN_WARNING "RADEON_CP_ME_RAM_D=
ATAH "
                                        "MISMATCH!\n");
                                break;
                        }

I've recompiled with this and booted to the new kernel, but seeing no w=
arning,
so it looks like it passes.

What's strange though is why they write zero instead of concrete memory=
 address
to the CP_ME_RAM_ADDR register...
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Subject: [PATCH] parisc: Export flush_cache_page() (needed by lustre)
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ERROR: "flush_cache_page" [drivers/staging/lustre/lustre/libcfs/libcfs.ko] undefined!

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 arch/parisc/kernel/cache.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index c035673..b521c0a 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -602,6 +602,7 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 		__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
 	}
 }
+EXPORT_SYMBOL_GPL(flush_cache_page);
 
 #ifdef CONFIG_PARISC_TMPALIAS
 
-- 
1.7.9.5

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On Thu, 2013-09-05 at 11:33 +0200, Geert Uytterhoeven wrote:
> ERROR: "flush_cache_page" [drivers/staging/lustre/lustre/libcfs/libcfs.ko] undefined!
> 
> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
> ---
>  arch/parisc/kernel/cache.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
> index c035673..b521c0a 100644
> --- a/arch/parisc/kernel/cache.c
> +++ b/arch/parisc/kernel/cache.c
> @@ -602,6 +602,7 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
>  		__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
>  	}
>  }
> +EXPORT_SYMBOL_GPL(flush_cache_page);

This is an internal API: no architecture exports this.  Whoever is
trying to use it needs to use the correct API, so this is the wrong
patch.

James


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From - Thu Nov 08 21:09:39 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Does there exists any 32bit-only PARISC SMP machines?
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On 9/4/2013 11:41 AM, John David Anglin wrote:
> On 9/4/2013 10:28 AM, Domenico Andreoli wrote:
>> BTW, this is the most detailed investigation I'm aware of:
>>
>> https://lkml.org/lkml/2008/4/20/251
> I have the sense that MEM_RENDEZ_HI may not be set correctly for your 
> machine:
>
>         /* Set the smp rendezvous address into page zero.
>         ** It would be safer to do this in init_smp_config() but
>         ** it's just way easier to deal with here because
>         ** of 64-bit function ptrs and the address is local to this file.
>         */
>         load32          PA(smp_slave_stext),%r10
>         stw             %r10,0x10(%r0)  /* MEM_RENDEZ */
>         stw             %r0,0x28(%r0)   /* MEM_RENDEZ_HI - assume addr 
> < 4GB */
>
> This is possibly due to a change in memory range detection:
>
> --- dmesg.txt 2008-04-21 11:19:16.000000000 +0200
> +++ dmesg2.txt 2008-04-21 15:27:46.000000000 +0200
> @@ -1,6 +1,7 @@
> -Linux version 2.6.22-3-parisc64-smp (Debian 2.6.22-6) 
> (maks@debian.org) (gcc version 4.1.3 20071019 (prerelease) (Debian 
> 4.1.2-17)) #2 SMP Mon Nov 12 21:04:20 CET 2007
> +Linux version 2.6.25 (cavok@ska) (gcc version 4.1.3 20080308 
> (prerelease) (Debian 4.1.2-21)) #8 SMP Mon Apr 21 12:25:50 CES8
Kyle more or less confirmed that smp_slave_stext is not being call.  The 
firmware documentation
indicates that this might occur if memory isn't "properly" initialized.  
It would be helpful if you did a regression search
for the change that broke the cpu release.

Dave

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From - Thu Nov 08 21:09:39 2018
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Subject: Re: [PATCH] parisc: Export flush_cache_page() (needed by lustre)
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On Thu, Sep 05, 2013 at 09:01:59AM -0700, James Bottomley wrote:
> > +EXPORT_SYMBOL_GPL(flush_cache_page);
> 
> This is an internal API: no architecture exports this.  Whoever is
> trying to use it needs to use the correct API, so this is the wrong
> patch.
> 

I suspect it's copy_{to,from}_user_page being called here:

drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c:
copy_to_user_page(vma, page, addr,

which we could probably take out of line.

--Kyle

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On Thu, Sep 5, 2013 at 7:13 PM, Kyle McMartin <kyle@infradead.org> wrote:
> On Thu, Sep 05, 2013 at 09:01:59AM -0700, James Bottomley wrote:
>> > +EXPORT_SYMBOL_GPL(flush_cache_page);
>>
>> This is an internal API: no architecture exports this.  Whoever is
>> trying to use it needs to use the correct API, so this is the wrong
>> patch.
>>
>
> I suspect it's copy_{to,from}_user_page being called here:

Indeed. Sorry, I should have mentioned that.

> drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c:
> copy_to_user_page(vma, page, addr,
>
> which we could probably take out of line.

If you want to hide flush_cache_page() for modules, yes.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
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Subject: Re: [PATCH] parisc: Export flush_cache_page() (needed by lustre)
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On 9/5/2013 12:01 PM, James Bottomley wrote:
> On Thu, 2013-09-05 at 11:33 +0200, Geert Uytterhoeven wrote:
>> ERROR: "flush_cache_page" [drivers/staging/lustre/lustre/libcfs/libcfs.ko] undefined!
>>
>> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
>> ---
>>   arch/parisc/kernel/cache.c |    1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
>> index c035673..b521c0a 100644
>> --- a/arch/parisc/kernel/cache.c
>> +++ b/arch/parisc/kernel/cache.c
>> @@ -602,6 +602,7 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
>>   		__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
>>   	}
>>   }
>> +EXPORT_SYMBOL_GPL(flush_cache_page);
> This is an internal API: no architecture exports this.  Whoever is
> trying to use it needs to use the correct API, so this is the wrong
> patch.
>
There is a declaration for it in arch/parisc/include/asm/cacheflush.h.  
There are a bunch
of callers in mm.  The interface in documented in 
Documentation/cachetlb.txt.  We currently
use it in copy_to_user_page and copy_from_user_page.

Dave

-- 
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From: Helge Deller <deller@gmx.de>
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Subject: Re: parisc debian kernel - missing  modules for C8000 - linux-image-3.10-2-parisc64-smp
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On 09/05/2013 01:58 AM, John David Anglin wrote:
> Should have just given link:=20
> http://developer.amd.com/resources/documentation-articles/developer-g=
uides-manuals/
> It is listed near bottom as "R5xx Family 3D Programming Guide".

I found this "older" one:
http://www.x.org/docs/AMD/R5xx_Acceleration_v1.1.pdf

Maybe section 4.5 (Chips et Coherency Issues) is relevant too: ?
The Rage128 product revealed a weakness in some motherboard chipsets in=
 that there is no mechanism to guarantee
that data written by the CPU to memory is actually in a readable state =
before the Graphics Controller receives an
update to its copy of the Write Pointer. In an effort to alleviate this=
 problem, we=E2=80=9Fve introduced a mechanism into the
Graphics Controller that will delay the actual write to the Write Point=
er for some programmable amount of time, in
order to give the chipset time to flush its internal write buffers to m=
emory.
There are two register fields that control this mechanism: PRE_WRITE_TI=
MER and PRE_WRITE_LIMIT.[...]

In the radeon DRM codebase I didn't found anyone using/setting those re=
gisters.
Maybe PA-RISC has some problem here?...

Just a thought.

Helge
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05.09.2013, =D7 16:49, John David Anglin <dave.anglin@bell.net> =CE=C1=D0=
=C9=D3=C1=CC(=C1):

> On 5-Sep-13, at 5:23 AM, Alex Ivanov wrote:
>=20
>=20
>> Good find! I though that it would be worth to check the load somehow=
,
>> as well. I've added the following piece after the load:
>>=20
>>               WREG32(RADEON_CP_ME_RAM_RADDR, 0);
>>               for (i =3D 0; i < size; i +=3D 2)
>>                       if (RREG32(RADEON_CP_ME_RAM_DATAH)
>>                               !=3D be32_to_cpup(&fw_data[i]) ||
>>                               RREG32(RADEON_CP_ME_RAM_DATAL)
>>                               !=3D be32_to_cpup(&fw_data[i+1])) {
>>                               printk(KERN_WARNING "RADEON_CP_ME_RAM_=
DATAH "
>>                                       "MISMATCH!\n");
>>                               break;
>>                       }
>>=20
>> I've recompiled with this and booted to the new kernel, but seeing n=
o warning,
>> so it looks like it passes.
>=20
> Could you add a line of code just to be sure the check is executed?
>=20
> From the boot log, it looks like register accesses generally seem to =
work, so it's
> starting to look like the card doesn't like the firmware.

Looks like.

>=20
> About all that I can see in the above that might be a problem is be32=
_to_cpup.
> Maybe you could just print in hex what you read back?  The R100 file =
is quite
> small.
>=20
>>=20
>> What's strange though is why they write zero instead of concrete mem=
ory address
>> to the CP_ME_RAM_ADDR register...
>=20
> Do you think the initial value should be different?  The documentatio=
n states the register
> is auto incremented on reads and writes.

My bad. I didn't take the written in manual correctly during first read=
ing.

>=20
> Dave
> --
> John David Anglin	dave.anglin@bell.net

I've added hex printing in a check and at brief view the output seems t=
o match cp firmware.
In my case, it's a r420_cp.bin


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On 9/5/2013 5:15 PM, Alex Ivanov wrote:
> I've added hex printing in a check and at brief view the output seems to match cp firmware.
> In my case, it's a r420_cp.bin
OK, so the problem is probably not in the firmware load.  Maybe it's
the chipset coherency issue mentioned by Helge.  This may break ring 
test, etc.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: parisc debian kernel - missing  modules for C8000 -
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On Thu, Sep 05, 2013 at 10:58:25PM +0200, Helge Deller wrote:
> Maybe section 4.5 (Chips et Coherency Issues) is relevant too: ?
> The Rage128 product revealed a weakness in some motherboard chipsets in that there is no mechanism to guarantee

but radeon is not r128, iirc.

My current state is:

- parisc AGP GART code writes IOMMU entries in the wrong byte order and
  doesn't add the coherency information SBA code adds

- our PCI BAR setup doesn't really work very well together with the Radeon
  DRM address setup. DRM will generate addresses, which are even outside
  of the connected LBA

I've hacked around both problems, but it doesn't solve the ring test
issue. I even bought an PCI Radeon card to rule out any AGP oddities,
but nothing new came out of the experiments with the PCI card.

I've started checking drivers/video/aty to see what it does with
acceleration and compare that with radeon DRM. The aty driver uses
an endian config bit DRM doesn't use, but I haven't tested whether
this makes a difference and how it is connected to the overall picture. 

What I'm still wondering is whether radeon DRM really works on 64bit
big endian boxes. Is there any prove, that someone has it running ?
Is it running on any big endian boxes ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]
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06.09.2013, =D7 12:52, Thomas Bogendoerfer <tsbogend@alpha.franken.de> =
=CE=C1=D0=C9=D3=C1=CC(=C1):

> On Thu, Sep 05, 2013 at 10:58:25PM +0200, Helge Deller wrote:
>> Maybe section 4.5 (Chips et Coherency Issues) is relevant too: ?
>> The Rage128 product revealed a weakness in some motherboard chipsets=
 in that there is no mechanism to guarantee
>=20
> but radeon is not r128, iirc.

There is a discussion on coherency issues with radeon on powerpc platfo=
rm=20
in linuxppc-embedded mail list. See e.g. here: http://en.it-usenet.org/=
thread/19030/8457/
I actually tried sync suggestions from there, but they didn't help.

>=20
> My current state is:
>=20
> - parisc AGP GART code writes IOMMU entries in the wrong byte order a=
nd
>  doesn't add the coherency information SBA code adds

I've played with SBA IOMMU code once too. I've added an IOMMU bypass li=
ke
it done in counterpart ia64 driver, though it didn't help with DRM, plu=
s it broke
=46usion MPT SCSI driver, and then i've seen why:

/* We are just "encouraging" 32-bit DMA masks here since we can
 * never allow IOMMU bypass unless we add special support for ZX1.
 */

In addition, it has nothing to do in AGP mode which is DMA32 limited.

>=20
> - our PCI BAR setup doesn't really work very well together with the R=
adeon
>  DRM address setup.

> DRM will generate addresses, which are even outside
>  of the connected LBA

Aren't they fixing this sort of problems, like here: https://lkml.org/l=
kml/2010/12/6/516 ?

>=20
> I've hacked around both problems, but it doesn't solve the ring test
> issue. I even bought an PCI Radeon card to rule out any AGP oddities,
> but nothing new came out of the experiments with the PCI card.
>=20
> I've started checking drivers/video/aty to see what it does with
> acceleration and compare that with radeon DRM. The aty driver uses
> an endian config bit DRM doesn't use, but I haven't tested whether
> this makes a difference and how it is connected to the overall pictur=
e.=20
>=20
> What I'm still wondering is whether radeon DRM really works on 64bit
> big endian boxes. Is there any prove, that someone has it running ?
> Is it running on any big endian boxes ?

I've seen some patches were made for KMS in order to fix support for bi=
g-endian
machines, however all of them seem to be done for relatively new chips,=
 like r600.
All big endian support in r100.c looks like just one buffer swap, AFAIR=
=2E

>=20
> Thomas.
>=20
> --=20
> Crap can work. Given enough thrust pigs will fly, but it's not necess=
arily a
> good idea.                                                [ RFC1925, =
2.3 ]

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Subject: Re: parisc debian kernel - missing  modules for C8000 -
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On Fri, 2013-09-06 at 10:52 +0200, Thomas Bogendoerfer wrote:
> On Thu, Sep 05, 2013 at 10:58:25PM +0200, Helge Deller wrote:
> > Maybe section 4.5 (Chips et Coherency Issues) is relevant too: ?
> > The Rage128 product revealed a weakness in some motherboard chipsets in that there is no mechanism to guarantee
> 
> but radeon is not r128, iirc.
> 
> My current state is:
> 
> - parisc AGP GART code writes IOMMU entries in the wrong byte order and
>   doesn't add the coherency information SBA code adds
> 
> - our PCI BAR setup doesn't really work very well together with the Radeon
>   DRM address setup. DRM will generate addresses, which are even outside
>   of the connected LBA
> 
> I've hacked around both problems, but it doesn't solve the ring test
> issue. I even bought an PCI Radeon card to rule out any AGP oddities,
> but nothing new came out of the experiments with the PCI card.

Hang on, if you bought a new Radeon card, how are you POSTing it?  The
BIOS will have the x86 POST code.

> I've started checking drivers/video/aty to see what it does with
> acceleration and compare that with radeon DRM. The aty driver uses
> an endian config bit DRM doesn't use, but I haven't tested whether
> this makes a difference and how it is connected to the overall picture. 
> 
> What I'm still wondering is whether radeon DRM really works on 64bit
> big endian boxes. Is there any prove, that someone has it running ?
> Is it running on any big endian boxes ?

Yes, I've got (or rather had) one working on a power station (the IBM
Linux on Power workstation) before it died. It was an R128.

James


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On Fri, Sep 06, 2013 at 06:12:01PM +0400, Alex Ivanov wrote:
> 06.09.2013, ? 12:52, Thomas Bogendoerfer <tsbogend@alpha.franken.de> ???????(?):
> > DRM will generate addresses, which are even outside
> >  of the connected LBA
> 
> Aren't they fixing this sort of problems, like here: https://lkml.org/lkml/2010/12/6/516 ?

no it's the side CPU->card. It only happens with PCI GART mode. DRM
shuffles around the addresses for VRAM and GTT, but misses that non PC
platforms might have more than one PCI bus, where transactions are
forwarded... or whatever it misses in our setup.

> > Is it running on any big endian boxes ?
> 
> I've seen some patches were made for KMS in order to fix support for
> big-endian machines, however all of them seem to be done for relatively
> new chips, like r600.

do you have a pointer to them ?

Thomas.

-- 
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good idea.                                                [ RFC1925, 2.3 ]
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On Fri, Sep 06, 2013 at 07:50:57AM -0700, James Bottomley wrote:
> Hang on, if you bought a new Radeon card, how are you POSTing it?  The
> BIOS will have the x86 POST code.

there is an x86 emulator in PDC. I even get PDC console on nvidia
cards. I also tested matrox cards but their bios hangs the machine.

> Yes, I've got (or rather had) one working on a power station (the IBM
> Linux on Power workstation) before it died. It was an R128.

was that with the KMS/DRM driver or the aty one ?

Thomas.

-- 
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On Fri, 2013-09-06 at 18:11 +0200, Thomas Bogendoerfer wrote:
> On Fri, Sep 06, 2013 at 07:50:57AM -0700, James Bottomley wrote:
> > Hang on, if you bought a new Radeon card, how are you POSTing it?  The
> > BIOS will have the x86 POST code.
> 
> there is an x86 emulator in PDC. I even get PDC console on nvidia
> cards. I also tested matrox cards but their bios hangs the machine.

Hm, OK ... what you describe sounds like the card is incorrectly POSTed.

> > Yes, I've got (or rather had) one working on a power station (the IBM
> > Linux on Power workstation) before it died. It was an R128.
> 
> was that with the KMS/DRM driver or the aty one ?

It was with the vanilla kernel.  The machine went belly up about two
years ago, so it's not with anything recent.

James


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With the new modules, I sometimes encounter the following warning at  
boot on rp3440:

[drm] radeon: 8M of VRAM memory ready
[drm] radeon: 512M of GTT memory ready.
[drm] GART: num cpu pages 131072, num gpu pages 131072
[drm] PCI GART of 512M enabled (table at 0x0000000042540000).
radeon 0000:e0:02.0: WB disabled
radeon 0000:e0:02.0: fence driver on ring 0 use gpu addr  
0xffffffffd0000000 and cpu addr 0x000000007c716000
[drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[drm] Driver supports precise vblank timestamp query.
------------[ cut here ]------------
WARNING: at kernel/workqueue.c:1378
Modules linked in: radeon(+) cfbfillrect cfbimgblt cfbcopyarea  
i2c_algo_bit drm_kms_helper ttm drm i2c_core backlight ohci_pci  
ohci_hcd xfs exportfs btrfs xor lzo_compress zlib_deflate raid6_pq  
crc32c libcrc32c dm_mod zalon7xx lasi700 53c700 hilkbd sd_mod  
crc_t10dif usb_storage sg sr_mod cdrom ehci_pci tg3 ehci_hcd  
pata_cmd64x ptp sym53c8xx libata pps_core scsi_transport_spi usbcore  
scsi_mod usb_common
CPU: 0 PID: 1220 Comm: modprobe Not tainted 3.11.0+ #1
task: 000000007f054808 ti: 000000007f0c8000 task.ti: 000000007f0c8000

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001110 Not tainted
r00-03  000000000804000e 000000007f0c92b0 000000004015edb8  
000000007f0c92b0
r04-07  0000000040768900 0000000042536d00 000000007c809f20  
000000007c809f28
r08-11  000000007f0c9350 000000007fc40600 0000000000000020  
0000000000000020
r12-15  0000000000000000 0000000000000001 000000004078c100  
000000007f0c8288
r16-19  0000000000000050 0000000000000000 000000007f0c8410  
0000000000000000
r20-23  000000000800000e 000000007c808006 0000000000000000  
000000001e071628
r24-27  000000007c809f20 0000000000000000 0000000042533600  
0000000040768900
r28-31  0000000000000001 000000007f0c9350 000000007f0c9380  
0000000000000000
sr00-03  0000000000162800 0000000000000000 0000000000000000  
0000000000113000
sr04-07  0000000000000000 0000000000000000 0000000000000000  
0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004015ee5c  
000000004015ee60
  IIR: 03ffe01f    ISR: 0000000010240000  IOR: 000000094cd33600
  CPU:        0   CR30: 000000007f0c8000 CR31: a001019408140000
  ORIG_R28: 0000000000000001
  IAOQ[0]: __queue_work+0x2dc/0x360
  IAOQ[1]: __queue_work+0x2e0/0x360
  RP(r2): __queue_work+0x238/0x360
Backtrace:
  [<000000004015ef64>] queue_work_on+0x84/0xa8
  [<000000001df55dfc>] r100_irq_process+0x2ec/0x5d8 [radeon]
  [<000000001df48cc4>] radeon_driver_irq_preinstall_kms+0x16c/0x1a0  
[radeon]
  [<000000001cdbd024>] drm_irq_install+0x11c/0x3c0 [drm]
  [<000000001df48f8c>] radeon_irq_kms_init+0x8c/0x168 [radeon]
  [<000000001df5aeac>] r100_startup+0x22c/0x3c8 [radeon]
  [<000000001df5b880>] r100_init+0x348/0x5c0 [radeon]
  [<000000001defbff4>] radeon_device_init+0x79c/0x9d0 [radeon]
  [<000000001deff588>] radeon_driver_load_kms+0xb8/0x1a8 [radeon]
  [<000000001cdc682c>] drm_get_pci_dev+0x28c/0x390 [drm]
  [<000000001def96e4>] radeon_pci_probe+0xcc/0x120 [radeon]
  [<000000004035fd74>] pci_device_probe+0xc4/0xf8
  [<00000000403d0fd8>] really_probe+0xd0/0x328
  [<00000000403d13e8>] __driver_attach+0x100/0x108
  [<00000000403ce290>] bus_for_each_dev+0xa0/0x100
  [<00000000403d08cc>] driver_attach+0x34/0x48

---[ end trace 9a90037d977025eb ]---
[drm] radeon: irq initialized.
[drm] Loading R100 Microcode

Dave
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Mates, let's continue with this issue at dri-devel@lists.freedesktop.or=
g
Here's where we stopped:

--[start]--

> =EF=D4: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
> =F4=C5=CD=C1: =EF=D4=D7=C5=D4: drm/radeon: "ring test failed" on PA-R=
ISC Linux
> =E4=C1=D4=C1: 10 =D3=C5=CE=D4=D1=C2=D2=D1 2013 =C7., 17:25:29 GMT+04:=
00
> =EB=CF=CD=D5: Alex Ivanov <gnidorah@p0n4ik.tk>
> =EB=CF=D0=C9=D1: Alex Deucher <alexdeucher@gmail.com>, Maling list - =
DRI developers <dri-devel@lists.freedesktop.org>
>=20
> On Tue, Sep 10, 2013 at 01:20:57PM +0400, Alex Ivanov wrote:
>>=20
>> Thanks! I'll try. Meanwhile i've tried a switch from page_alloc() to
>> dma_alloc_coherent() in radeon_dummy_page_*(), which didn't help :(
>=20
> Is this platform enabling the SWIOTLB layer? The reason I am asking i=
s
> b/c if you do indeed enable it you end up using the TTM DMA pool
> which allocates pages using the dma_alloc_coherent - which means that
> all of the pages that come out of TTM are already 'DMA' mapped.
>=20
> And that means the radeon_gart_bind and all its friends=20
> use the DMA addresses that have been constructed by SWIOTLB IOMMU.
>=20
> Perhaps the PA-RISC IOMMU creates the DMA addresses differently?
>=20
> When the card gets programmed, you do end up using ttm_agp_bind right=
?
> I am wondering if something like this:
>=20
> https://lkml.org/lkml/2010/12/6/512
>=20
> is needed to pass in the right DMA address?

--[end]--

Thomas,

> What I'm still wondering is whether radeon DRM really works on 64bit
> big endian boxes.
> Is it running on any big endian boxes ?

It's running ok at least on 32-bit big-endian PowerPCs and on 64-bit=20
big-endian PowerPC G5 machines.

> Is there any prove, that someone has it running ?

Here they are:
https://groups.google.com/d/msg/linux.kernel/BnAMrzyO2wg/W-R5UVh_VLIJ
And here's an excerpt from this one:
http://lists.freedesktop.org/archives/dri-devel/2013-September/045029.h=
tml
"I don't think that will any difference.  radeon kms works fine on
other big endian platforms such as powerpc."--
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From - Thu Nov 08 21:09:40 2018
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X-Mozilla-Keys:                                                                                 
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From: Jiang Liu <liuj97@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: [RFC PATCH v2 14/25] smp, parisc: kill SMP single function call interrupt
Date: Thu, 12 Sep 2013 00:07:18 +0800
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Cc: liuj97@gmail.com, Jiang Liu <jiang.liu@huawei.com>,
	Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Steven Rostedt <rostedt@goodmis.org>,
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From: Jiang Liu <jiang.liu@huawei.com>

Commit 9a46ad6d6df3b54 "smp: make smp_call_function_many() use logic
similar to smp_call_function_single()" has unified the way to handle
single and multiple cross-CPU function calls. Now only one interrupt
is needed for architecture specific code to support generic SMP function
call interfaces, so kill the redundant single function call interrupt.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Jiang Liu <liuj97@gmail.com>
---
 arch/parisc/kernel/smp.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 8a252f2..2b96602 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -72,7 +72,6 @@ enum ipi_message_type {
 	IPI_NOP=0,
 	IPI_RESCHEDULE=1,
 	IPI_CALL_FUNC,
-	IPI_CALL_FUNC_SINGLE,
 	IPI_CPU_START,
 	IPI_CPU_STOP,
 	IPI_CPU_TEST
@@ -164,11 +163,6 @@ ipi_interrupt(int irq, void *dev_id)
 				generic_smp_call_function_interrupt();
 				break;
 
-			case IPI_CALL_FUNC_SINGLE:
-				smp_debug(100, KERN_DEBUG "CPU%d IPI_CALL_FUNC_SINGLE\n", this_cpu);
-				generic_smp_call_function_single_interrupt();
-				break;
-
 			case IPI_CPU_START:
 				smp_debug(100, KERN_DEBUG "CPU%d IPI_CPU_START\n", this_cpu);
 				break;
@@ -260,7 +254,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask)
 
 void arch_send_call_function_single_ipi(int cpu)
 {
-	send_IPI_single(cpu, IPI_CALL_FUNC_SINGLE);
+	send_IPI_single(cpu, IPI_CALL_FUNC);
 }
 
 /*
-- 
1.8.1.2


From - Thu Nov 08 21:09:40 2018
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From: Jeroen Roovers <jer@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: C8000 / PA8800 64-bit SMP with kernel 3.11.0 - HPMC in
 cpu_startup_entry while setting promiscuous mode on eth
Date: Fri, 13 Sep 2013 18:27:05 +0200
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--MP_/8C6jCf.IJYbL1W6B6/h8FAh
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

Resending since it apparently never got through (binary attachment?)...

While running tcpdump or wireshark (dumpcap) and setting promiscuous
mode on eth0, I get an HPMC in cpu_startup_entry.

Attached are the:

1) PDC output for PIM(1) and assorted information
   gathered from the PDC SER menu and the serial console
2) gzipped System.map of the kernel
3) .config of the kernel

40:01.0 SCSI storage controller: LSI Logic / Symbios Logic 53c1030
PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 07)
40:01.1 SCSI storage controller: LSI Logic / Symbios Logic 53c1030
PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 07)
60:01.0 USB controller: NEC Corporation OHCI USB Controller (rev 41)
60:01.1 USB controller: NEC Corporation OHCI USB Controller (rev 41)
60:01.2 USB controller: NEC Corporation uPD72010x USB 2.0 Controller
(rev 02)
60:02.0 IDE interface: Silicon Image, Inc. PCI0680 Ultra ATA-133 Host
Controller (rev 02)
60:03.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet
Controller (rev 02)
80:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] RV350 GL [FireGL T2] (rev 80)

What else to say? I'm rebuilding the kernel with debug symbols to maybe
get some more out of this. It's the second time exactly this happened
so I might be able to reproduce it fairly easily. I should also note
that the /first/ time I switched eth0 to promisc. mode, the HPMC didn't
occur, only the second time in that run time of the kernel.


Regards,
     jer



(1) PIM HPMC fails with:
WARNING:  Processor parameter is incorrect or out of range.
--MP_/8C6jCf.IJYbL1W6B6/h8FAh
Content-Type: text/plain
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename=config

#
# Automatically generated file; DO NOT EDIT.
# Linux/parisc 3.11.0-gentoo Kernel Configuration
#

#
# Gentoo Linux
#
CONFIG_GENTOO_LINUX=y
CONFIG_GENTOO_LINUX_UDEV=y

#
# Support for init systems, system and service managers
#
CONFIG_GENTOO_LINUX_INIT_SCRIPT=y
# CONFIG_GENTOO_LINUX_INIT_SYSTEMD is not set
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_LOW_RES=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE="hppa64-unknown-linux-gnu-"
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION="-JeR"
CONFIG_LOCALVERSION_AUTO=y
CONFIG_DEFAULT_HOSTNAME="karsten"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_FHANDLE=y
# CONFIG_AUDIT is not set
CONFIG_HAVE_GENERIC_HARDIRQS=y

#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
# CONFIG_TASKSTATS is not set

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_PREEMPT_RCU is not set
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_FANOUT=64
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_NOCB_CPU is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=18
CONFIG_CGROUPS=y
# CONFIG_CGROUP_DEBUG is not set
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
# CONFIG_MEMCG is not set
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CFS_BANDWIDTH=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_BLK_CGROUP=y
# CONFIG_DEBUG_BLK_CGROUP is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
# CONFIG_USER_NS is not set
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_UIDGID_CONVERTED=y
# CONFIG_UIDGID_STRICT_TYPE_CHECKS is not set
CONFIG_SCHED_AUTOGROUP=y
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW=y
# CONFIG_EXPERT is not set
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_PCI_QUIRKS=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
CONFIG_SLUB_CPU_PARTIAL=y
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
CONFIG_USE_GENERIC_SMP_HELPERS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_CLONE_BACKWARDS=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_THROTTLING=y

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_CFQ_GROUP_IOSCHED=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_BROKEN_RODATA=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_FREEZER=y

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
# CONFIG_MLONGCALLS is not set
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_IRQSTACKS=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_CROSS_MEMORY_ATTACH=y
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
# CONFIG_ZBUD is not set
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_NR_CPUS=32

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
# CONFIG_ISA is not set
CONFIG_PCI=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set

#
# PCI host controller drivers
#
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=m

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=m
CONFIG_XFRM_USER=m
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=m
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=m
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
CONFIG_INET_LRO=m
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=m
CONFIG_IPV6_PRIVACY=y
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
# CONFIG_IPV6_MIP6 is not set
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_BEET is not set
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=m
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_GRE is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
CONFIG_STP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
# CONFIG_BRIDGE_VLAN_FILTERING is not set
CONFIG_HAVE_NET_DSA=y
CONFIG_VLAN_8021Q=m
# CONFIG_VLAN_8021Q_GVRP is not set
# CONFIG_VLAN_8021Q_MVRP is not set
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
CONFIG_DNS_RESOLVER=m
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
CONFIG_NETLINK_MMAP=y
CONFIG_NETLINK_DIAG=y
# CONFIG_NET_MPLS_GSO is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
# CONFIG_NETPRIO_CGROUP is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
CONFIG_DMA_SHARED_BUFFER=y

#
# Bus devices
#
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_RSXX is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ATMEL_SSC is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1780 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_BMP085_I2C is not set
# CONFIG_PCH_PHUB is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_SENSORS_LIS3_I2C is not set

#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_SCSI_BNX2X_FCOE is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
CONFIG_SCSI_LASI700=m
CONFIG_53C700_LE_ON_BE=y
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
CONFIG_SCSI_ZALON=m
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=1
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_CHELSIO_FCOE is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=m
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
# CONFIG_ATA_PIIX is not set
# CONFIG_SATA_HIGHBANK is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_RCAR is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CS5536 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
CONFIG_PATA_SIL680=m
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=y
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=y
CONFIG_MD_MULTIPATH=m
CONFIG_MD_FAULTY=m
CONFIG_BCACHE=m
# CONFIG_BCACHE_DEBUG is not set
# CONFIG_BCACHE_EDEBUG is not set
# CONFIG_BCACHE_CLOSURES_DEBUG is not set
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
# CONFIG_DM_THIN_PROVISIONING is not set
# CONFIG_DM_CACHE is not set
CONFIG_DM_MIRROR=m
CONFIG_DM_RAID=m
# CONFIG_DM_LOG_USERSPACE is not set
# CONFIG_DM_ZERO is not set
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_UEVENT is not set
# CONFIG_DM_FLAKEY is not set
# CONFIG_DM_VERITY is not set
# CONFIG_DM_SWITCH is not set
# CONFIG_TARGET_CORE is not set
CONFIG_FUSION=y
CONFIG_FUSION_SPI=y
# CONFIG_FUSION_FC is not set
# CONFIG_FUSION_SAS is not set
CONFIG_FUSION_MAX_SGE=128
# CONFIG_FUSION_CTL is not set
# CONFIG_FUSION_LOGGING is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_VXLAN is not set
CONFIG_NETCONSOLE=m
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_TUN=m
# CONFIG_VETH is not set
CONFIG_NLMON=m
# CONFIG_ARCNET is not set

#
# CAIF transport drivers
#

#
# Distributed Switch Architecture drivers
#
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_MV88E6060 is not set
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
# CONFIG_NET_DSA_MV88E6131 is not set
# CONFIG_NET_DSA_MV88E6123_61_65 is not set
CONFIG_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_CADENCE is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_CALXEDA_XGMAC is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CIRRUS is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_DNET is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EXAR is not set
# CONFIG_NET_VENDOR_HP is not set
CONFIG_NET_VENDOR_INTEL=y
# CONFIG_E100 is not set
CONFIG_E1000=y
# CONFIG_E1000E is not set
# CONFIG_IGB is not set
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
# CONFIG_IXGBE is not set
# CONFIG_NET_VENDOR_I825XX is not set
# CONFIG_IP1000 is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_PACKET_ENGINE is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_SH_ETH is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_SFC is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
# CONFIG_AT803X_PHY is not set
CONFIG_AMD_PHY=m
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
CONFIG_BCM87XX_PHY=m
CONFIG_ICPLUS_PHY=m
CONFIG_REALTEK_PHY=m
CONFIG_NATIONAL_PHY=m
CONFIG_STE10XP=m
CONFIG_LSI_ET1011C_PHY=m
CONFIG_MICREL_PHY=m
CONFIG_MDIO_BITBANG=m
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_FILTER=y
CONFIG_PPP_MPPE=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPPOE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
# CONFIG_SLIP is not set
CONFIG_SLHC=m

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
CONFIG_KEYBOARD_HIL_OLD=y
# CONFIG_KEYBOARD_HIL is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
# CONFIG_MOUSE_PS2 is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_CYAPA is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
# CONFIG_SERIO_SERPORT is not set
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=m
CONFIG_HIL_MLC=m
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set

#
# KCopy
#
CONFIG_KCOPY=m
CONFIG_DEVKMEM=y

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
CONFIG_SERIAL_8250_RSA=y
# CONFIG_SERIAL_8250_DW is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MFD_HSU is not set
# CONFIG_SERIAL_MUX is not set
CONFIG_PDC_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_PCH_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
CONFIG_IPMI_HANDLER=m
# CONFIG_IPMI_PANIC_EVENT is not set
# CONFIG_IPMI_DEVICE_INTERFACE is not set
# CONFIG_IPMI_SI is not set
# CONFIG_IPMI_WATCHDOG is not set
# CONFIG_IPMI_POWEROFF is not set
CONFIG_HW_RANDOM=m
CONFIG_HW_RANDOM_TIMERIOMEM=m
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EG20T is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PXA_PCI is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set
# CONFIG_HSI is not set

#
# PPS support
#
# CONFIG_PPS is not set

#
# PPS generators support
#

#
# PTP clock support
#
# CONFIG_PTP_1588_CLOCK is not set

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_GPIO_DEVRES=y
# CONFIG_W1 is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_BATTERY_BQ27x00 is not set
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_ISP1704 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_BATTERY_GOLDFISH is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_AVS is not set
CONFIG_HWMON=m
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7410 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_IBMAEM is not set
# CONFIG_SENSORS_IBMPEX is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LTC4151 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_LM95234 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6642 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_ADS1015 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
# CONFIG_SSB_B43_PCI_BRIDGE is not set
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_AS3711 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX77686 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SMSC is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_STMPE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS80031 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TC3589X is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
CONFIG_AGP=m
CONFIG_AGP_PARISC=m
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
CONFIG_DRM=m
CONFIG_DRM_KMS_HELPER=m
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_TTM=m

#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_CH7006 is not set
# CONFIG_DRM_I2C_SIL164 is not set
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
CONFIG_DRM_RADEON=m
# CONFIG_DRM_RADEON_UMS is not set
# CONFIG_DRM_NOUVEAU is not set
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_SIS is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set
# CONFIG_DRM_VMWGFX is not set
# CONFIG_DRM_UDL is not set
# CONFIG_DRM_AST is not set
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_CIRRUS_QEMU is not set
# CONFIG_DRM_QXL is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_HDMI=y
CONFIG_FB=m
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_DDC=m
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=m
CONFIG_FB_CFB_COPYAREA=m
CONFIG_FB_CFB_IMAGEBLIT=m
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
CONFIG_FB_STI=m
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_MATROX is not set
CONFIG_FB_RADEON=m
CONFIG_FB_RADEON_I2C=y
CONFIG_FB_RADEON_BACKLIGHT=y
# CONFIG_FB_RADEON_DEBUG is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_GOLDFISH is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
# CONFIG_EXYNOS_VIDEO is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=m
# CONFIG_LCD_PLATFORM is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_GENERIC=y
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630 is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LP855X is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_FRAMEBUFFER_CONSOLE=m
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_STI_CONSOLE=y
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_LOGO_PARISC_CLUT224=y
CONFIG_SOUND=m
# CONFIG_SOUND_OSS_CORE is not set
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
# CONFIG_SND_SEQUENCER is not set
# CONFIG_SND_MIXER_OSS is not set
# CONFIG_SND_PCM_OSS is not set
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_ALOOP is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
# CONFIG_SND_AC97_POWER_SAVE is not set
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LOLA is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
CONFIG_SND_USB=y
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_UA101 is not set
# CONFIG_SND_USB_CAIAQ is not set
# CONFIG_SND_USB_6FIRE is not set
# CONFIG_SND_USB_HIFACE is not set
CONFIG_SND_GSC=y
CONFIG_SND_HARMONY=m
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m

#
# HID support
#
CONFIG_HID=y
# CONFIG_HID_BATTERY_STRENGTH is not set
# CONFIG_HIDRAW is not set
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y

#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=y
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
# CONFIG_HID_PRODIKEYS is not set
CONFIG_HID_CYPRESS=y
CONFIG_HID_DRAGONRISE=y
# CONFIG_DRAGONRISE_FF is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
# CONFIG_HID_ELO is not set
CONFIG_HID_EZKEY=y
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_HUION is not set
# CONFIG_HID_KEYTOUCH is not set
CONFIG_HID_KYE=y
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
CONFIG_HID_GYRATION=y
# CONFIG_HID_ICADE is not set
CONFIG_HID_TWINHAN=y
CONFIG_HID_KENSINGTON=y
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LENOVO_TPKBD is not set
CONFIG_HID_LOGITECH=y
CONFIG_HID_LOGITECH_DJ=m
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWHEELS_FF is not set
# CONFIG_HID_MAGICMOUSE is not set
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
# CONFIG_HID_MULTITOUCH is not set
CONFIG_HID_NTRIG=m
# CONFIG_HID_ORTEK is not set
CONFIG_HID_PANTHERLORD=y
# CONFIG_PANTHERLORD_FF is not set
CONFIG_HID_PETALYNX=y
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
CONFIG_HID_SAMSUNG=y
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEELSERIES is not set
CONFIG_HID_SUNPLUS=y
CONFIG_HID_GREENASIA=y
# CONFIG_GREENASIA_FF is not set
CONFIG_HID_SMARTJOYPLUS=y
# CONFIG_SMARTJOYPLUS_FF is not set
# CONFIG_HID_TIVO is not set
CONFIG_HID_TOPSEED=y
CONFIG_HID_THRUSTMASTER=y
# CONFIG_THRUSTMASTER_FF is not set
CONFIG_HID_ZEROPLUS=y
# CONFIG_ZEROPLUS_FF is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set

#
# USB HID support
#
CONFIG_USB_HID=m
# CONFIG_HID_PID is not set
CONFIG_USB_HIDDEV=y

#
# I2C HID support
#
# CONFIG_I2C_HID is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=m
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=m
CONFIG_USB_DEBUG=y
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_MON=m
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
CONFIG_USB_EHCI_PCI=m
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_FUSBH200_HCD is not set
CONFIG_USB_OHCI_HCD=m
CONFIG_USB_OHCI_HCD_PCI=m
# CONFIG_USB_OHCI_HCD_SSB is not set
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=m
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_SSB is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
CONFIG_USB_STORAGE_DEBUG=y
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_CHIPIDEA is not set

#
# USB port drivers
#
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_AIRCABLE=m
CONFIG_USB_SERIAL_ARK3116=m
CONFIG_USB_SERIAL_BELKIN=m
CONFIG_USB_SERIAL_CH341=m
CONFIG_USB_SERIAL_WHITEHEAT=m
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
CONFIG_USB_SERIAL_CP210X=m
CONFIG_USB_SERIAL_CYPRESS_M8=m
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_FUNSOFT=m
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
CONFIG_USB_SERIAL_IR=m
CONFIG_USB_SERIAL_EDGEPORT=m
CONFIG_USB_SERIAL_EDGEPORT_TI=m
CONFIG_USB_SERIAL_F81232=m
CONFIG_USB_SERIAL_GARMIN=m
CONFIG_USB_SERIAL_IPW=m
CONFIG_USB_SERIAL_IUU=m
CONFIG_USB_SERIAL_KEYSPAN_PDA=m
CONFIG_USB_SERIAL_KEYSPAN=m
CONFIG_USB_SERIAL_KEYSPAN_MPR=y
CONFIG_USB_SERIAL_KEYSPAN_USA28=y
CONFIG_USB_SERIAL_KEYSPAN_USA28X=y
CONFIG_USB_SERIAL_KEYSPAN_USA28XA=y
CONFIG_USB_SERIAL_KEYSPAN_USA28XB=y
CONFIG_USB_SERIAL_KEYSPAN_USA19=y
CONFIG_USB_SERIAL_KEYSPAN_USA18X=y
CONFIG_USB_SERIAL_KEYSPAN_USA19W=y
CONFIG_USB_SERIAL_KEYSPAN_USA19QW=y
CONFIG_USB_SERIAL_KEYSPAN_USA19QI=y
CONFIG_USB_SERIAL_KEYSPAN_USA49W=y
CONFIG_USB_SERIAL_KEYSPAN_USA49WLC=y
CONFIG_USB_SERIAL_KLSI=m
CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
CONFIG_USB_SERIAL_METRO=m
CONFIG_USB_SERIAL_MOS7720=m
CONFIG_USB_SERIAL_MOS7840=m
CONFIG_USB_SERIAL_MOTOROLA=m
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=m
CONFIG_USB_SERIAL_OTI6858=m
CONFIG_USB_SERIAL_QCAUX=m
CONFIG_USB_SERIAL_QUALCOMM=m
CONFIG_USB_SERIAL_SPCP8X5=m
CONFIG_USB_SERIAL_HP4X=m
CONFIG_USB_SERIAL_SAFE=m
CONFIG_USB_SERIAL_SAFE_PADDED=y
CONFIG_USB_SERIAL_SIEMENS_MPI=m
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
CONFIG_USB_SERIAL_SYMBOL=m
CONFIG_USB_SERIAL_TI=m
CONFIG_USB_SERIAL_CYBERJACK=m
CONFIG_USB_SERIAL_XIRCOM=m
CONFIG_USB_SERIAL_WWAN=m
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_SERIAL_OMNINET=m
CONFIG_USB_SERIAL_OPTICON=m
CONFIG_USB_SERIAL_VIVOPAY_SERIAL=m
CONFIG_USB_SERIAL_XSENS_MT=m
CONFIG_USB_SERIAL_ZIO=m
CONFIG_USB_SERIAL_WISHBONE=m
CONFIG_USB_SERIAL_ZTE=m
CONFIG_USB_SERIAL_SSU100=m
CONFIG_USB_SERIAL_QT2=m
# CONFIG_USB_SERIAL_FLASHLOADER is not set
# CONFIG_USB_SERIAL_SUUNTO is not set
CONFIG_USB_SERIAL_DEBUG=m

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
CONFIG_USB_EZUSB_FX2=m
# CONFIG_USB_HSIC_USB3503 is not set
CONFIG_USB_PHY=y
CONFIG_NOP_USB_XCEIV=m
CONFIG_OMAP_CONTROL_USB=m
CONFIG_OMAP_USB3=m
CONFIG_SAMSUNG_USBPHY=m
CONFIG_SAMSUNG_USB2PHY=m
CONFIG_SAMSUNG_USB3PHY=m
CONFIG_USB_ISP1301=m
CONFIG_USB_RCAR_PHY=m
# CONFIG_USB_GADGET is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
# CONFIG_RTC_DRV_DS2404 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VIRT_DRIVERS is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_STAGING is not set

#
# Hardware Spinlock drivers
#
# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set

#
# Rpmsg drivers
#
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set

#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT23=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
CONFIG_QUOTA_DEBUG=y
CONFIG_QUOTA_TREE=m
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=m
# CONFIG_CUSE is not set

#
# Caches
#
CONFIG_FSCACHE=m
# CONFIG_FSCACHE_STATS is not set
# CONFIG_FSCACHE_HISTOGRAM is not set
# CONFIG_FSCACHE_DEBUG is not set
# CONFIG_FSCACHE_OBJECT_LIST is not set
CONFIG_CACHEFILES=m
# CONFIG_CACHEFILES_DEBUG is not set
# CONFIG_CACHEFILES_HISTOGRAM is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
CONFIG_SQUASHFS=m
CONFIG_SQUASHFS_XATTR=y
CONFIG_SQUASHFS_ZLIB=y
# CONFIG_SQUASHFS_LZO is not set
# CONFIG_SQUASHFS_XZ is not set
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_PSTORE is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_F2FS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V2=m
CONFIG_NFS_V3=m
# CONFIG_NFS_V3_ACL is not set
CONFIG_NFS_V4=m
# CONFIG_NFS_SWAP is not set
# CONFIG_NFS_V4_1 is not set
# CONFIG_NFS_FSCACHE is not set
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_NFSD=m
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V3_ACL is not set
CONFIG_NFSD_V4=y
# CONFIG_NFSD_FAULT_INJECTION is not set
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_CEPH_FS is not set
CONFIG_CIFS=m
# CONFIG_CIFS_STATS is not set
# CONFIG_CIFS_WEAK_PW_HASH is not set
# CONFIG_CIFS_UPCALL is not set
# CONFIG_CIFS_XATTR is not set
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_DFS_UPCALL is not set
# CONFIG_CIFS_SMB2 is not set
# CONFIG_CIFS_FSCACHE is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_NLS=m
CONFIG_NLS_DEFAULT="iso8859-15"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=m

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set

#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y

#
# Memory Debugging
#
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_DEBUG_VM is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Lockups and Hangs
#
CONFIG_LOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_WRITECOUNT is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_RCU_CPU_STALL_INFO is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y

#
# Runtime Testing
#
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_SAMPLES is not set
CONFIG_DEBUG_RODATA=y

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_ENCRYPTED_KEYS is not set
# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_XOR_BLOCKS=y
CONFIG_ASYNC_CORE=y
CONFIG_ASYNC_MEMCPY=y
CONFIG_ASYNC_XOR=y
CONFIG_ASYNC_PQ=y
CONFIG_ASYNC_RAID6_RECOV=y
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=m
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_HMAC=m
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_GHASH is not set
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=m
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=m
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_HW is not set
# CONFIG_ASYMMETRIC_KEY_TYPE is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_RAID6_PQ=y
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
# CONFIG_AVERAGE is not set
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
CONFIG_OID_REGISTRY=m
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y

--MP_/8C6jCf.IJYbL1W6B6/h8FAh
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment; filename=hpmc-2013-09-12.txt

Last message to syslog:

Sep 12 15:50:58 karsten kernel: [697269.944000] device eth0 entered promisc=
uous mode

What I was doing:

running wireshark and starting a packet dump (dumpcap) on eth0 (60:03.0
Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller =
(rev
02))

The PDC printed this on the serial console when it happened:

<Cpu0> e800009800e00000  000000004018eb20  CC_ERR_CHECK_HPMC
<Cpu1> e800009801e00000  0000000040b5f67b  CC_ERR_CHECK_HPMC
<Cpu0> 37000f7300e00000  8400000000800000  CC_ERR_CPU_CHECK_SUMMARY
<Cpu1> 37000f7301e00000  8400000000800000  CC_ERR_CPU_CHECK_SUMMARY
<Cpu0> f600105e00e00000  fffffff0f0c00000  CC_MC_HPMC_MONARCH_SELECTED
<Cpu1> 5600100b01e00000  0000000000000194  CC_MC_OS_HPMC_LEN_ERR
<Cpu0> 140003b200e00000  000000000000000b  CC_ERR_HPMC_STATE_ENTRY
<Cpu1> 5600106401e00000  fffffff0f0436fc0  CC_MC_BR_TO_OS_HPMC_FAILED
<Cpu1> 160012cf01e00000  010001001e00000d  CC_MPS_CPU_WAITING
<Cpu0> 5600100b00e00000  0000000000000194  CC_MC_OS_HPMC_LEN_ERR
<Cpu0> 5600106400e00000  fffffff0f0435110  CC_MC_BR_TO_OS_HPMC_FAILED
<Cpu0> e800009800e00000  000000004018eb20  CC_ERR_CHECK_HPMC
<Cpu0> 37000f7300e00000  8400000000800000  CC_ERR_CPU_CHECK_SUMMARY
<Cpu0> 4000109f00e00000  0000000000000000  CC_MC_HPMC_INITIATED
<Cpu0> 4000101900e00000  0000000000000000  CC_MC_MULTIPLE_HPMCS
<Cpu0> 030010d500e00000  0000000000000000  CC_CPU_STOP
<Cpu1> 160012d001e00000  0100010000000001  CC_MPS_CPU_WAIT_OVER
<Cpu1> 2800035d01e00000  0000000040b5f67b  CC_ERR_CHECK_TOC
<Cpu1> 37000f7301e00000  8400000000800000  CC_ERR_CPU_CHECK_SUMMARY
<Cpu1> 4300107401e00000  0000000000000000  CC_MC_OS_TOC_MISSING
<Cpu1> 170003db01e00000  ffffffffffffffff  CC_ERR_TOC_NO_OS_TOC
<Cpu1> 160012cf01e00000  01000100b400000d  CC_MPS_CPU_WAITING
<Cpu1> 160012d001e00000  0100010000000001  CC_MPS_CPU_WAIT_OVER
<Cpu0> 160012be00e00000  0000000000000213  CC_BOOT_INIT_CHASSIS_CODES
<Cpu0> 0b00104b00e00000  0007dd090c0d362f  CC_BOOT_TIMESTAMP
<Cpu0> 2100127000e00000  fffffff0f0430000  CC_NVM_RESTARTED
<Cpu0> 1600127300e00000  00000009000176c0  CC_NVM_PARMS
<Cpu0> 1600104700e00000  00000000000000fe  CC_BOOT_CPUS_PRESENTL
<Cpu0> 160012bb00e00000  0000000000000000  CC_BOOT_CPU_CACHE_FUSE_INIT


Service Menu: Enter command > pim hpmc

WARNING:  Processor parameter is incorrect or out of range.

Service Menu: Enter command > pim


PROCESSOR PIM INFORMATION

Original Product Number:  AB629A
Current Product Number:


-----------------  Processor 0 HPMC Information - PDC Version:  2.13  ------

Timestamp =3D   Thu Sep  12 13:50:52 GMT 2013    (20:13:09:12:13:50:52)=EF=
=BF=BD=D5=9A=EF=BF=BD

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0xe800009800e00000 0x000000004018eb20
       0x37000f7300e00000 0x8400000000800000

General Registers 0 - 31
00-03  0000000000000000  000000004085c600  000000004018eb0c  00000000406b02=
e0
04-07  0000000040833600  00000000406b0370  0000000000000001  000000004085c6=
00
08-11  000000004085b600  0000000040847600  0000000040847600  00000000000000=
01
12-15  0000000000000013  0000000000000000  00000000000130dc  00000000000000=
00
16-19  00000000f0d00ae0  00000000000130dc  0000000000000000  00000000000000=
01
20-23  0000000000000000  00000000000003ff  00000000b31f0000  0000000002dc78=
00
24-27  0000000000000000  0000000000000000  00000000419f0790  00000000408336=
00
28-31  00000000406b0000  00000000406b0400  00000000406b03a0  00000000080000=
0e


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000016be2  0000000000000000  00000000000000c0  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000103000  fff00000000000=
00
16-19  00023ad5fb1dd6ec  0000000000000000  000000004018eb20  00000000539c00=
20
20-23  0000000000000000  0000000000000000  000000ff0806ff0f  80800000000000=
00
24-27  0000000000757000  0000000028a6a000  ffffffffefdfffff  0000000040000c=
00
28-31  ffffffffffffffff  ffffffffffffffff  00000000406b0000  ffffffffffffff=
ff


Space Registers 0 - 7
00-03  0000000005af8800  0000000005af8800  0000000000000000  0000000005af88=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00


IIA Space (back entry)       =3D 0x0000000000000000
IIA Offset (back entry)      =3D 0x000000004018eb24
Check Type                   =3D 0x00000000
Cpu State                    =3D 0x9e000000
Cache Check                  =3D 0x00000000
TLB Check                    =3D 0x00000000
Bus Check                    =3D 0x00000000
Assists Check                =3D 0x05af8800
Assist State                 =3D 0x00000000
Path Info                    =3D 0x00000000
System Responder Address     =3D 0x0000000000000000
System Requestor Address     =3D 0x0000000000000000



Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  4044800000000000  4044c00000000000  3f99999a00000000  40580000000000=
00
08-11  0000000000000000  3ff0000000000000  0000000000000000  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
28-31  ffffffff00000000  0000000000000000  fffe7b0015ea0000  00000000000000=
00


PIM Revision                 =3D 0x0000000000000001
CPU ID                       =3D 0x0000000000000014
CPU Revision                 =3D 0x0000000000000032
Cpu Serial Number            =3D 0x45248d49643f0308
Check Summary                =3D 0x8400000000800000
SAL Timestamp                =3D 0x000000005231c6bc
System Firmware Rev.         =3D 0x0000008d000000d5
PDC Relocation Address       =3D 0xfffffff0f0c00000
Available Memory             =3D 0x000000007fe00000
CPU Diagnose Register 2      =3D 0x3212022000002008
MIB_STAT                     =3D 0x0000000000000000
MIB_LOG1                     =3D 0x0000000000007f00
MIB_LOG2                     =3D 0x0000800000000000
MIB_ECC_DATA                 =3D 0x0000100000100000
ICache Info                  =3D 0x0000000000000000
DCache Info                  =3D 0x0000000000000000
Sharedcache Info1            =3D 0x0800000000600000
Sharedcache Info2            =3D 0x0000000000000000
MIB_RSLOG1                   =3D 0x0010000000000104
MIB_RSLOG2                   =3D 0x0000000000000000
MIB_RQLOG                    =3D 0x0045200000082600
MIB_REQLOGa                  =3D 0x8004520000008200
MIB_REQLOGb                  =3D 0xc10008a400000100
Reserved                     =3D 0x0000000000000000
Cache Repair Detail          =3D 0x0000000000000000

PIM Detail Text:



-----------------  Processor 0 LPMC Information ------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
28-31  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00



Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
28-31  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00

Space Registers 0 - 7
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00


IIA Space (back entry)       =3D 0x0000000000000000
IIA Offset (back entry)      =3D 0x0000000000000000
Check Type                   =3D 0x00000000
Cpu State                    =3D 0x00000000
Cache Check                  =3D 0x00000000
TLB Check                    =3D 0x00000000
Bus Check                    =3D 0x00000000
Assists Check                =3D 0x00000000
Assist State                 =3D 0x00000000
Path Info                    =3D 0x00000000
System Responder Address     =3D 0x0000000000000000
System Requestor Address     =3D 0x0000000000000000



Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
28-31  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00


PIM Revision                 =3D 0x0000000000000000
CPU ID                       =3D 0x0000000000000000
CPU Revision                 =3D 0x0000000000000000
Cpu Serial Number            =3D 0x0000000000000000
Check Summary                =3D 0x0000000000000000
SAL Timestamp                =3D 0x0000000000000000
System Firmware Rev.         =3D 0x0000000000000000
PDC Relocation Address       =3D 0x0000000000000000
Available Memory             =3D 0x0000000000000000
CPU Diagnose Register 2      =3D 0x0000000000000000
MIB_STAT                     =3D 0x0000000000000000
MIB_LOG1                     =3D 0x0000000000000000
MIB_LOG2                     =3D 0x0000000000000000
MIB_ECC_DATA                 =3D 0x0000000000000000
ICache Info                  =3D 0x0000000000000000
DCache Info                  =3D 0x0000000000000000
Sharedcache Info1            =3D 0x0000000000000000
Sharedcache Info2            =3D 0x0000000000000000
MIB_RSLOG1                   =3D 0x0000000000000000
MIB_RSLOG2                   =3D 0x0000000000000000
MIB_RQLOG                    =3D 0x0000000000000000
MIB_REQLOGa                  =3D 0x0000000000000000
MIB_REQLOGb                  =3D 0x0000000000000000
Reserved                     =3D 0x0000000000000000
Cache Repair Detail          =3D 0x0000000000000000

PIM Detail Text:




-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  000000004084b490  000000004018e934  00000000406a22=
e0
04-07  0000000040822c90  00000000406a2370  0000000000000001  000000004084b4=
90
08-11  000000004084a490  0000000040836c90  0000000040836c90  00000000000000=
01
12-15  0000000000000013  0000000000000000  00000000000130dc  00000000000000=
00
16-19  00000000f0d00ae0  00000000000130dc  0000000000000000  00000000000000=
01
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  00000000419db788  0000000040822c=
90
28-31  0000000000000008  00000000406a2400  00000000406a23a0  00000000080000=
0e



Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000000000  0000000000000000  00000000000000c0  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000103000  fff00000000000=
00
16-19  000000772906266a  0000000000000000  000000004018e944  0000000003c008=
bc
20-23  0000000000000000  0000000000000000  000000ff0804ff0f  80000000000000=
00
24-27  0000000000748000  0000000000748000  ffffffffefffffff  0000000040000c=
00
28-31  ffffffffffffffff  ffffffffffffffff  00000000406a2000  ffffffffffffff=
ff

Space Registers 0 - 7
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00

IIA Space (back entry)       =3D 0x0000000000000000
IIA Offset (back entry)      =3D 0x000000004018e948
CPU State                    =3D 0x9e000000

-----------------  Processor 1 HPMC Information - PDC Version:  2.13  ------

Timestamp =3D   Thu Sep  12 13:50:52 GMT 2013    (20:13:09:12:13:50:52)=EF=
=BF=BD=D5=9A=EF=BF=BD

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0xe800009800e00000 0x0000000040b5f67b
       0x37000f7300e00000 0x8400000000800000
       0x5600100b00e00000 0x0000000000000194
       0x5600106400e00000 0xfffffff0f0436fc0

General Registers 0 - 31
00-03  0000000000000000  0000000040b911ec  0000000040b5f727  00000000413a2f=
88
04-07  0000000040b911ec  00000000421bd000  0000000000000000  00000000000000=
01
08-11  000000004139f266  00000000413a2f08  ffffffffffff8100  00000000000000=
01
12-15  000000004139c064  000000000007a120  000000004139f9a0  00000000413a00=
5c
16-19  0000000000000000  0000000040b911ec  000000004139f9a0  0000000040b911=
ec
20-23  00000000413b31e8  0000000000000004  0000000040b5f400  00000000413a2f=
08
24-27  00000000000000fa  0000000000000001  00000000fb2b0bcc  000000004139f1=
a0
28-31  0000000000000001  0000000001c46f00  00000000fb2b0c80  00000000419117=
1b


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000016be2  0000000000000000  00000000000000c0  00000000000000=
1c
12-15  0000000000000000  0000000000000000  0000000000103000  fff00000000000=
00
16-19  00023ad5fb1eacf4  0000000005af8800  0000000040b5f67b  000000000ca010=
94
20-23  00000000012400c0  40000000085bd000  000000ff0006f90f  80000000000000=
00
24-27  0000000000757000  0000000028a6a000  fffdffffffffffff  00000000400031=
00
28-31  9fdddf5f47ef5ffe  9fdddf5f47ef5ffe  00000000656cc000  ffffffffffffff=
ff


Space Registers 0 - 7
00-03  0000000005aac800  0000000005aac800  0000000000000000  0000000005af88=
00
04-07  0000000005af8800  0000000005af8800  0000000005af8800  0000000005af88=
00


IIA Space (back entry)       =3D 0x0000000005af8800
IIA Offset (back entry)      =3D 0x0000000040b5f67f
Check Type                   =3D 0x00000000
Cpu State                    =3D 0x9e000000
Cache Check                  =3D 0x00000000
TLB Check                    =3D 0x00000000
Bus Check                    =3D 0x00000000
Assists Check                =3D 0x05af8800
Assist State                 =3D 0x00000000
Path Info                    =3D 0x00000000
System Responder Address     =3D 0x0000000000000000
System Requestor Address     =3D 0x0000000000000000



Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  4044800000000000  4044c00000000000  3f99999a00000000  40580000000000=
00
08-11  0000000000000000  3ff0000000000000  0000000000000000  00000000000000=
00
12-15  00000010aae3bcfd  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000333333334  00000004000000=
00
24-27  0000000000000000  42b8000000017a00  ffffffff00000000  00000000000000=
00
28-31  ffffffff00000000  0000000000000000  fffe7b0015ea0000  00000000000000=
00


PIM Revision                 =3D 0x0000000000000001
CPU ID                       =3D 0x0000000000000014
CPU Revision                 =3D 0x0000000000000032
Cpu Serial Number            =3D 0x45248d49643f0308
Check Summary                =3D 0x8400000000800000
SAL Timestamp                =3D 0x000000005231c6bc
System Firmware Rev.         =3D 0x0000008d000000d5
PDC Relocation Address       =3D 0xfffffff0f0c00000
Available Memory             =3D 0x000000007fe00000
CPU Diagnose Register 2      =3D 0x3252020008082008
MIB_STAT                     =3D 0x0000000000000000
MIB_LOG1                     =3D 0x0000000000000000
MIB_LOG2                     =3D 0x0000000000000000
MIB_ECC_DATA                 =3D 0x0000000000000000
ICache Info                  =3D 0x0000000000000000
DCache Info                  =3D 0x0000000000000000
Sharedcache Info1            =3D 0x0000000000000000
Sharedcache Info2            =3D 0x0000000000000000
MIB_RSLOG1                   =3D 0x0000000000000000
MIB_RSLOG2                   =3D 0x0000000000000000
MIB_RQLOG                    =3D 0x0000000000000000
MIB_REQLOGa                  =3D 0x0000000000000000
MIB_REQLOGb                  =3D 0x0000000000000000
Reserved                     =3D 0x0000000000000000
Cache Repair Detail          =3D 0x0000000000000000

PIM Detail Text:

-----------------  Processor 1 LPMC Information ------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
28-31  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00



Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
28-31  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00


Space Registers 0 - 7
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00


IIA Space (back entry)       =3D 0x0000000000000000
IIA Offset (back entry)      =3D 0x0000000000000000
Check Type                   =3D 0x00000000
Cpu State                    =3D 0x00000000
Cache Check                  =3D 0x00000000
TLB Check                    =3D 0x00000000
Bus Check                    =3D 0x00000000
Assists Check                =3D 0x00000000
Assist State                 =3D 0x00000000
Path Info                    =3D 0x00000000
System Responder Address     =3D 0x0000000000000000
System Requestor Address     =3D 0x0000000000000000



Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
28-31  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00


PIM Revision                 =3D 0x0000000000000000
CPU ID                       =3D 0x0000000000000000
CPU Revision                 =3D 0x0000000000000000
Cpu Serial Number            =3D 0x0000000000000000
Check Summary                =3D 0x0000000000000000
SAL Timestamp                =3D 0x0000000000000000
System Firmware Rev.         =3D 0x0000000000000000
PDC Relocation Address       =3D 0x0000000000000000
Available Memory             =3D 0x0000000000000000
CPU Diagnose Register 2      =3D 0x0000000000000000
MIB_STAT                     =3D 0x0000000000000000
MIB_LOG1                     =3D 0x0000000000000000
MIB_LOG2                     =3D 0x0000000000000000
MIB_ECC_DATA                 =3D 0x0000000000000000
ICache Info                  =3D 0x0000000000000000
DCache Info                  =3D 0x0000000000000000
Sharedcache Info1            =3D 0x0000000000000000
Sharedcache Info2            =3D 0x0000000000000000
MIB_RSLOG1                   =3D 0x0000000000000000
MIB_RSLOG2                   =3D 0x0000000000000000
MIB_RQLOG                    =3D 0x0000000000000000
MIB_REQLOGa                  =3D 0x0000000000000000
MIB_REQLOGb                  =3D 0x0000000000000000
Reserved                     =3D 0x0000000000000000
Cache Repair Detail          =3D 0x0000000000000000

PIM Detail Text:


-----------------  Processor 1 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000040b911ec  0000000040b5f727  00000000413a2f=
88
04-07  0000000040b911ec  00000000421bd000  0000000000000000  00000000000000=
01
08-11  000000004139f266  00000000413a2f08  ffffffffffff8100  00000000000000=
01
12-15  000000004139c064  000000000007a120  000000004139f9a0  00000000413a00=
5c
16-19  0000000000000000  0000000040b911ec  000000004139f9a0  0000000040b911=
ec
20-23  00000000413b31e8  0000000000000004  0000000040b5f400  00000000413a2f=
08
24-27  00000000000000fa  0000000000000001  00000000fb2b0bcc  000000004139f1=
a0
28-31  0000000000000001  0000000001c46f00  00000000fb2b0c80  00000000419117=
1b



Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000016be2  0000000000000000  00000000000000c0  00000000000000=
1c
12-15  0000000000000000  0000000000000000  0000000000103000  fff00000000000=
00
16-19  00023ad5fb1eacf4  0000000005af8800  0000000040b5f67b  000000000ca010=
94
20-23  00000000012400c0  40000000085bd000  000000ff0006f90f  80000000000000=
00
24-27  0000000000757000  0000000028a6a000  fffdffffffffffff  00000000400031=
00
28-31  9fdddf5f47ef5ffe  9fdddf5f47ef5ffe  00000000656cc000  ffffffffffffff=
ff

Space Registers 0 - 7
00-03  0000000005aac800  0000000005aac800  0000000000000000  0000000005af88=
00
04-07  0000000005af8800  0000000005af8800  0000000005af8800  0000000005af88=
00

IIA Space (back entry)       =3D 0x0000000005af8800
IIA Offset (back entry)      =3D 0x0000000040b5f67f
CPU State                    =3D 0x9e000000



--------------  Memory Error Log Information  --------------

   No errors logged for this bus

------------  I/O Module Error Log Information  ------------

  No IO subsystem errors recorded


--MP_/8C6jCf.IJYbL1W6B6/h8FAh--
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From - Thu Nov 08 21:09:41 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: C8000 / PA8800 64-bit SMP with kernel 3.11.0 - HPMC in
 cpu_startup_entry while setting promiscuous mode on eth
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On Fri, 2013-09-13 at 18:27 +0200, Jeroen Roovers wrote:
> Resending since it apparently never got through (binary attachment?)...
> 
> While running tcpdump or wireshark (dumpcap) and setting promiscuous
> mode on eth0, I get an HPMC in cpu_startup_entry.
> 
> Attached are the:
> 
> 1) PDC output for PIM(1) and assorted information
>    gathered from the PDC SER menu and the serial console
> 2) gzipped System.map of the kernel
> 3) .config of the kernel
> 
> 40:01.0 SCSI storage controller: LSI Logic / Symbios Logic 53c1030
> PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 07)
> 40:01.1 SCSI storage controller: LSI Logic / Symbios Logic 53c1030
> PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 07)
> 60:01.0 USB controller: NEC Corporation OHCI USB Controller (rev 41)
> 60:01.1 USB controller: NEC Corporation OHCI USB Controller (rev 41)
> 60:01.2 USB controller: NEC Corporation uPD72010x USB 2.0 Controller
> (rev 02)
> 60:02.0 IDE interface: Silicon Image, Inc. PCI0680 Ultra ATA-133 Host
> Controller (rev 02)
> 60:03.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet
> Controller (rev 02)
> 80:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
> [AMD/ATI] RV350 GL [FireGL T2] (rev 80)
> 
> What else to say? 

Translation of the kernel addresses from %rp (0x4018eb0c), and the two
IAOQ entries (0x0, 0x4018eb24).  Since the first IAOQ entry is zero,
whatever is at the second seemed to trigger a jump to a NULL pointer.

James


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From - Thu Nov 08 21:09:41 2018
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From: Jeroen Roovers <jer@gentoo.org>
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Subject: Re: C8000 / PA8800 64-bit SMP with kernel 3.11.0 - HPMC in
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On Fri, 13 Sep 2013 09:49:56 -0700
James Bottomley <James.Bottomley@HansenPartnership.com> wrote:

> On Fri, 2013-09-13 at 18:27 +0200, Jeroen Roovers wrote:
> > Resending since it apparently never got through (binary
> > attachment?)...
> > 
> > While running tcpdump or wireshark (dumpcap) and setting promiscuous
> > mode on eth0, I get an HPMC in cpu_startup_entry.

I forgot to note that this does not happen every time.

> Translation of the kernel addresses from %rp (0x4018eb0c), and the
> two IAOQ entries (0x0, 0x4018eb24).  Since the first IAOQ entry is
> zero, whatever is at the second seemed to trigger a jump to a NULL
> pointer.

000000004018e9b0 W arch_cpu_idle
000000004018e9e0 T cpu_startup_entry
000000004018ec68 T freezing_slow_path

http://rooversj.home.xs4all.nl/gentoo/hppa/System.map

Is this useful in any way?


     jer
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From - Thu Nov 08 21:09:41 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
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Subject: linux-next: old trees
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Cc: LKML <linux-kernel@vger.kernel.org>,
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--Signature=_Tue__17_Sep_2013_17_01_24_+1000_ugYdwK6T7JDx0cPM
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Hi all,

This message is bcc'd to each of the contacts for the trees listed below,
so apologies if you get two copies.

I have been inspired to check the ages of the trees included in
linux-next.  Below I have listed all the trees that have not been
commited to in the past 6 months.  Please let me know if the tree is not
longer in use.  I don't mind keeping these trees in linux-next if they
will have continued use, but would like to remove any that are no longer
needed.

Tree		Last commit
----		-----------
4xx		1 year, 4 months ago
apm		1 year, 5 months ago
asm-generic	9 months ago
audit		1 year, 8 months ago
audit-current	1 year, 8 months ago
configfs	1 year, 10 months ago
cpupowerutils	1 year, 7 months ago
cputime		1 year, 9 months ago
davinci		2 years, 2 months ago
dwmw2		6 months ago
dwmw2-iommu	9 months ago
embedded	5 years ago
firmware	4 years, 4 months ago
fsnotify	9 months ago
fw-nohz		10 months ago
hsi		1 year, 8 months ago
hwpoison	2 years, 11 months ago
hwspinlock	2 years ago
ibft		1 year, 9 months ago
isci		1 year, 2 months ago
ixp4xx		7 months ago
jc_docs		2 years, 6 months ago
kconfig		12 months ago
kgdb		7 months ago
logfs		10 months ago
lzo-update	7 months ago
ocfs2		1 year, 1 month ago
omfs		1 year, 11 months ago
openrisc	6 months ago
osd		9 months ago
parisc		8 months ago
pcmcia		1 year, 7 months ago
pstore		6 months ago
random		7 months ago
sh		7 months ago
sh-current	1 year, 2 months ago
swiotlb		11 months ago
sysctl		1 year, 6 months ago
tmem		11 months ago
uclinux		7 months ago
unicore32	10 months ago
uprobes		1 year, 6 months ago
viafb		1 year, 6 months ago

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

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From - Thu Nov 08 21:09:41 2018
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Subject: Re: parisc debian kernel - missing  modules for C8000 - linux-image-3.10-2-parisc64-smp
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08.09.2013, 01:08, "John David Anglin" <dave.anglin@bell.net>:
> With the new modules, I sometimes encounter the following warning at
> boot on rp3440:
>
> [drm] radeon: 8M of VRAM memory ready
> [drm] radeon: 512M of GTT memory ready.
> [drm] GART: num cpu pages 131072, num gpu pages 131072
> [drm] PCI GART of 512M enabled (table at 0x0000000042540000).
> radeon 0000:e0:02.0: WB disabled
> radeon 0000:e0:02.0: fence driver on ring 0 use gpu addr
> 0xffffffffd0000000 and cpu addr 0x000000007c716000
> [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
> [drm] Driver supports precise vblank timestamp query.
> ------------[ cut here ]------------
> WARNING: at kernel/workqueue.c:1378
> Modules linked in: radeon(+) cfbfillrect cfbimgblt cfbcopyarea
> i2c_algo_bit drm_kms_helper ttm drm i2c_core backlight ohci_pci
> ohci_hcd xfs exportfs btrfs xor lzo_compress zlib_deflate raid6_pq
> crc32c libcrc32c dm_mod zalon7xx lasi700 53c700 hilkbd sd_mod
> crc_t10dif usb_storage sg sr_mod cdrom ehci_pci tg3 ehci_hcd
> pata_cmd64x ptp sym53c8xx libata pps_core scsi_transport_spi usbcore
> scsi_mod usb_common
> CPU: 0 PID: 1220 Comm: modprobe Not tainted 3.11.0+ #1
> task: 000000007f054808 ti: 000000007f0c8000 task.ti: 000000007f0c8000
>
> =9A=9A=9A=9A=9A=9AYZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001000000000000001110 Not tainted
> r00-03 =9A000000000804000e 000000007f0c92b0 000000004015edb8
> 000000007f0c92b0
> r04-07 =9A0000000040768900 0000000042536d00 000000007c809f20
> 000000007c809f28
> r08-11 =9A000000007f0c9350 000000007fc40600 0000000000000020
> 0000000000000020
> r12-15 =9A0000000000000000 0000000000000001 000000004078c100
> 000000007f0c8288
> r16-19 =9A0000000000000050 0000000000000000 000000007f0c8410
> 0000000000000000
> r20-23 =9A000000000800000e 000000007c808006 0000000000000000
> 000000001e071628
> r24-27 =9A000000007c809f20 0000000000000000 0000000042533600
> 0000000040768900
> r28-31 =9A0000000000000001 000000007f0c9350 000000007f0c9380
> 0000000000000000
> sr00-03 =9A0000000000162800 0000000000000000 0000000000000000
> 0000000000113000
> sr04-07 =9A0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
>
> IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004015ee5c
> 000000004015ee60
> =9A=9AIIR: 03ffe01f =9A=9A=9AISR: 0000000010240000 =9AIOR: 000000094c=
d33600
> =9A=9ACPU: =9A=9A=9A=9A=9A=9A=9A0 =9A=9ACR30: 000000007f0c8000 CR31: =
a001019408140000
> =9A=9AORIG_R28: 0000000000000001
> =9A=9AIAOQ[0]: __queue_work+0x2dc/0x360
> =9A=9AIAOQ[1]: __queue_work+0x2e0/0x360
> =9A=9ARP(r2): __queue_work+0x238/0x360
> Backtrace:
> =9A=9A[<000000004015ef64>] queue_work_on+0x84/0xa8
> =9A=9A[<000000001df55dfc>] r100_irq_process+0x2ec/0x5d8 [radeon]
> =9A=9A[<000000001df48cc4>] radeon_driver_irq_preinstall_kms+0x16c/0x1=
a0
> [radeon]
> =9A=9A[<000000001cdbd024>] drm_irq_install+0x11c/0x3c0 [drm]
> =9A=9A[<000000001df48f8c>] radeon_irq_kms_init+0x8c/0x168 [radeon]
> =9A=9A[<000000001df5aeac>] r100_startup+0x22c/0x3c8 [radeon]
> =9A=9A[<000000001df5b880>] r100_init+0x348/0x5c0 [radeon]
> =9A=9A[<000000001defbff4>] radeon_device_init+0x79c/0x9d0 [radeon]
> =9A=9A[<000000001deff588>] radeon_driver_load_kms+0xb8/0x1a8 [radeon]
> =9A=9A[<000000001cdc682c>] drm_get_pci_dev+0x28c/0x390 [drm]
> =9A=9A[<000000001def96e4>] radeon_pci_probe+0xcc/0x120 [radeon]
> =9A=9A[<000000004035fd74>] pci_device_probe+0xc4/0xf8
> =9A=9A[<00000000403d0fd8>] really_probe+0xd0/0x328
> =9A=9A[<00000000403d13e8>] __driver_attach+0x100/0x108
> =9A=9A[<00000000403ce290>] bus_for_each_dev+0xa0/0x100
> =9A=9A[<00000000403d08cc>] driver_attach+0x34/0x48
>
> ---[ end trace 9a90037d977025eb ]---
> [drm] radeon: irq initialized.
> [drm] Loading R100 Microcode
>
> Dave
> --
> John David Anglin dave.anglin@bell.net

Seen with 3.11.0 on c8000 few times. Though it was workqueue.c:137*9*
and no modules were linked in.
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Subject: Re: drm/radeon: "ring test failed" on PA-RISC Linux
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This hand't been indexed, so i'll resending. Sorry for the noise...

11.09.2013, 15:11, "Alex Ivanov" <gnidorah@p0n4ik.tk>:
> Mates, let's continue with this issue at dri-devel@lists.freedesktop.=
org
> Here's where we stopped:
>
> --[start]--
>
>> =9A=EF=D4: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
>> =9A=F4=C5=CD=C1: =EF=D4=D7=C5=D4: drm/radeon: "ring test failed" on =
PA-RISC Linux
>> =9A=E4=C1=D4=C1: 10 =D3=C5=CE=D4=D1=C2=D2=D1 2013 =C7., 17:25:29 GMT=
+04:00
>> =9A=EB=CF=CD=D5: Alex Ivanov <gnidorah@p0n4ik.tk>
>> =9A=EB=CF=D0=C9=D1: Alex Deucher <alexdeucher@gmail.com>, Maling lis=
t - DRI developers <dri-devel@lists.freedesktop.org>
>>
>> =9AOn Tue, Sep 10, 2013 at 01:20:57PM +0400, Alex Ivanov wrote:
>>> =9AThanks! I'll try. Meanwhile i've tried a switch from page_alloc(=
) to
>>> =9Adma_alloc_coherent() in radeon_dummy_page_*(), which didn't help=
 :(
>> =9AIs this platform enabling the SWIOTLB layer? The reason I am aski=
ng is
>> =9Ab/c if you do indeed enable it you end up using the TTM DMA pool
>> =9Awhich allocates pages using the dma_alloc_coherent - which means =
that
>> =9Aall of the pages that come out of TTM are already 'DMA' mapped.
>>
>> =9AAnd that means the radeon_gart_bind and all its friends
>> =9Ause the DMA addresses that have been constructed by SWIOTLB IOMMU=
=2E
>>
>> =9APerhaps the PA-RISC IOMMU creates the DMA addresses differently?
>>
>> =9AWhen the card gets programmed, you do end up using ttm_agp_bind r=
ight?
>> =9AI am wondering if something like this:
>>
>> =9Ahttps://lkml.org/lkml/2010/12/6/512
>>
>> =9Ais needed to pass in the right DMA address?
>
> --[end]--
>
> Thomas,
>
>> =9AWhat I'm still wondering is whether radeon DRM really works on 64=
bit
>> =9Abig endian boxes.
>> =9AIs it running on any big endian boxes ?
>
> It's running ok at least on 32-bit big-endian PowerPCs and on 64-bit
> big-endian PowerPC G5 machines.
>
>> =9AIs there any prove, that someone has it running ?
>
> Here they are:
> https://groups.google.com/d/msg/linux.kernel/BnAMrzyO2wg/W-R5UVh_VLIJ
> And here's an excerpt from this one:
> http://lists.freedesktop.org/archives/dri-devel/2013-September/045029=
=2Ehtml
> "I don't think that will any difference. =9Aradeon kms works fine on
> other big endian platforms such as powerpc."
> --
> To unsubscribe from this list: send the line "unsubscribe linux-paris=
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> the body of a message to majordomo@vger.kernel.org
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Subject: Re: systemd real-time signals choices clash with Linux/PARISC available
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On 08/27/2013 05:26 PM, John David Anglin wrote:
> On 8/27/2013 10:46 AM, Jeroen Roovers wrote:
>> On Mon, 26 Aug 2013 18:37:54 -0400 John David Anglin
>> <dave.anglin@bell.net> wrote:
>> 
>>> On 26-Aug-13, at 5:27 PM, Helge Deller wrote:
>>>>> [1] Sneak preview:
>>>>> https://bugs.gentoo.org/show_bug.cgi?id=482214
>>>> Did you already filed this signal-problem upstream as suggested
>>>> in comment #3
>>>> (https://bugs.gentoo.org/show_bug.cgi?id=482214#c3)?
>> Well, there are two ways to resolve this problem, and seeing who
>> is developing systemd and seeing the generous way the "available"
>> signal range is used, I'm pretty doubtful about changes there.

I can see why they wouldn't like to change this again.
It might break systemd binaries on other existing arches which already 
support systemd.

Anyway, has there been any further upstream discussion?

>> As I said in comment #2, that range could be compacted (a lot) and
>> then fit easily on any future platform. Since it was a design
>> choice even reflected in man pages[1] ("[...], SIGRTMIN+29   Sets
>> the log level to [...]"), I'm very afraid they will not change it
>> easily.
>> 
>>> I believe two of the signal numbers come from HP-UX.
>> #define SIGXCPU         33 #define SIGXFSZ         34
> The signal numbers for these two signals come from HP-UX but the
> signals are used by Linux, so I can't see how they can change.
>> #define SIGSTKFLT       36
>> 
>> According to [2], SIGSTKFLT isn't used.
> This signal isn't used by HP-UX but it is used by Linux, so again
> this can't change.

changing those would break our binary compatibility...
 
> Can we change _NSIG to 69 so there are 32 RT signals as on other
> arches? [Dave followup]: It looks like it needs to be a power of 2.
> MIPS uses 128.

127 seems to be the better choice then... (signal #128 seems to conflict with
the core dump bit)

So, how should we proceed here?
If I haven't overlooked something, it seems that changing the parisc kernel
 & glibc is possible.
Downside is, that people of course need newer kernel/glibc and at least 
systemd recompiled.
Another downside is that we add more overhead in the signal paths, but I'm not
sure if this really hurts performance (is signal handling performance-relevant
at all?).

I can come up with a kernel/glibc patch (which seem to be trivial) if we agree 
to really go that way...

Helge

>> [1] http://www.freedesktop.org/software/systemd/man/systemd.html 
>> [2]
>> http://h21007.www2.hp.com/portal/download/files/unprot/STK/Linux_STK/impacts/i60.html
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Regarding _NSIG, I realized after I wrote that the number has to be 
divisible by 64 because
of the way various words are allocated (one bit per signal). There is no 
roundup in the allocation.
We need to tweak the RT max value so we at least 32 RT signals. This 
should keep userspace
happy.  This will leave a whole bunch of numbers free.  So, probably 
there wouldn't be a conflict
with the core dump bit.

I had the sense the glibc doesn't need to change because of the way 
POSIX specifies
the number of available realtime signals.

Dave

On 9/18/2013 2:40 PM, Helge Deller wrote:
> On 08/27/2013 05:26 PM, John David Anglin wrote:
>> On 8/27/2013 10:46 AM, Jeroen Roovers wrote:
>>> On Mon, 26 Aug 2013 18:37:54 -0400 John David Anglin
>>> <dave.anglin@bell.net> wrote:
>>>
>>>> On 26-Aug-13, at 5:27 PM, Helge Deller wrote:
>>>>>> [1] Sneak preview:
>>>>>> https://bugs.gentoo.org/show_bug.cgi?id=482214
>>>>> Did you already filed this signal-problem upstream as suggested
>>>>> in comment #3
>>>>> (https://bugs.gentoo.org/show_bug.cgi?id=482214#c3)?
>>> Well, there are two ways to resolve this problem, and seeing who
>>> is developing systemd and seeing the generous way the "available"
>>> signal range is used, I'm pretty doubtful about changes there.
> I can see why they wouldn't like to change this again.
> It might break systemd binaries on other existing arches which already
> support systemd.
>
> Anyway, has there been any further upstream discussion?
>
>>> As I said in comment #2, that range could be compacted (a lot) and
>>> then fit easily on any future platform. Since it was a design
>>> choice even reflected in man pages[1] ("[...], SIGRTMIN+29   Sets
>>> the log level to [...]"), I'm very afraid they will not change it
>>> easily.
>>>
>>>> I believe two of the signal numbers come from HP-UX.
>>> #define SIGXCPU         33 #define SIGXFSZ         34
>> The signal numbers for these two signals come from HP-UX but the
>> signals are used by Linux, so I can't see how they can change.
>>> #define SIGSTKFLT       36
>>>
>>> According to [2], SIGSTKFLT isn't used.
>> This signal isn't used by HP-UX but it is used by Linux, so again
>> this can't change.
> changing those would break our binary compatibility...
>   
>> Can we change _NSIG to 69 so there are 32 RT signals as on other
>> arches? [Dave followup]: It looks like it needs to be a power of 2.
>> MIPS uses 128.
> 127 seems to be the better choice then... (signal #128 seems to conflict with
> the core dump bit)
>
> So, how should we proceed here?
> If I haven't overlooked something, it seems that changing the parisc kernel
>   & glibc is possible.
> Downside is, that people of course need newer kernel/glibc and at least
> systemd recompiled.
> Another downside is that we add more overhead in the signal paths, but I'm not
> sure if this really hurts performance (is signal handling performance-relevant
> at all?).
>
> I can come up with a kernel/glibc patch (which seem to be trivial) if we agree
> to really go that way...
>
> Helge
>
>>> [1] http://www.freedesktop.org/software/systemd/man/systemd.html
>>> [2]
>>> http://h21007.www2.hp.com/portal/download/files/unprot/STK/Linux_STK/impacts/i60.html
> --
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> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
>


-- 
John David Anglin    dave.anglin@bell.net

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From: Felipe Pena <felipensp@gmail.com>
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Subject: [PATCH 1/1] arch/parisc: mm: fix uninitialized variable usage
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The FAULT_FLAG_WRITE flag has been set based on uninitialized variable

Signed-off-by: Felipe Pena <felipensp@gmail.com>
---
 arch/parisc/mm/fault.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index d10d27a..6b38026 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -182,8 +182,6 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 
 	if (user_mode(regs))
 		flags |= FAULT_FLAG_USER;
-	if (acc_type & VM_WRITE)
-		flags |= FAULT_FLAG_WRITE;
 retry:
 	down_read(&mm->mmap_sem);
 	vma = find_vma_prev(mm, address, &prev_vma);
@@ -201,6 +199,9 @@ good_area:
 	if ((vma->vm_flags & acc_type) != acc_type)
 		goto bad_area;
 
+	if (acc_type & VM_WRITE)
+		flags |= FAULT_FLAG_WRITE;
+
 	/*
 	 * If for any reason at all we couldn't handle the fault, make
 	 * sure we exit gracefully rather than endlessly redo the
-- 
1.7.10.4

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From - Thu Nov 08 21:09:41 2018
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Subject: Re: [PATCH 1/1] arch/parisc: mm: fix uninitialized variable usage
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Hello Felipe,

On Sun, Sep 22, 2013 at 03:17:46PM -0300, Felipe Pena wrote:
> The FAULT_FLAG_WRITE flag has been set based on uninitialized variable

Oops, you are right.

> Signed-off-by: Felipe Pena <felipensp@gmail.com>
> ---
>  arch/parisc/mm/fault.c |    5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
> index d10d27a..6b38026 100644
> --- a/arch/parisc/mm/fault.c
> +++ b/arch/parisc/mm/fault.c
> @@ -182,8 +182,6 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
>  
>  	if (user_mode(regs))
>  		flags |= FAULT_FLAG_USER;
> -	if (acc_type & VM_WRITE)
> -		flags |= FAULT_FLAG_WRITE;
>  retry:
>  	down_read(&mm->mmap_sem);
>  	vma = find_vma_prev(mm, address, &prev_vma);
> @@ -201,6 +199,9 @@ good_area:
>  	if ((vma->vm_flags & acc_type) != acc_type)
>  		goto bad_area;
>  
> +	if (acc_type & VM_WRITE)
> +		flags |= FAULT_FLAG_WRITE;

Can acc_type actually change between between the first round and a
retry?  Otherwise, it might make sense to pull this up and place it
next to the flag initialization instead of pulling one flag down.
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Subject: Re: [PATCH 1/1] arch/parisc: mm: fix uninitialized variable usage
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Hello Johannes,

On Sun, Sep 22, 2013 at 7:58 PM, Johannes Weiner <hannes@cmpxchg.org> wrote:
> Hello Felipe,
>
> On Sun, Sep 22, 2013 at 03:17:46PM -0300, Felipe Pena wrote:
>> The FAULT_FLAG_WRITE flag has been set based on uninitialized variable
>
> Oops, you are right.
>
>> Signed-off-by: Felipe Pena <felipensp@gmail.com>
>> ---
>>  arch/parisc/mm/fault.c |    5 +++--
>>  1 file changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
>> index d10d27a..6b38026 100644
>> --- a/arch/parisc/mm/fault.c
>> +++ b/arch/parisc/mm/fault.c
>> @@ -182,8 +182,6 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
>>
>>       if (user_mode(regs))
>>               flags |= FAULT_FLAG_USER;
>> -     if (acc_type & VM_WRITE)
>> -             flags |= FAULT_FLAG_WRITE;
>>  retry:
>>       down_read(&mm->mmap_sem);
>>       vma = find_vma_prev(mm, address, &prev_vma);
>> @@ -201,6 +199,9 @@ good_area:
>>       if ((vma->vm_flags & acc_type) != acc_type)
>>               goto bad_area;
>>
>> +     if (acc_type & VM_WRITE)
>> +             flags |= FAULT_FLAG_WRITE;
>
> Can acc_type actually change between between the first round and a
> retry?  Otherwise, it might make sense to pull this up and place it
> next to the flag initialization instead of pulling one flag down.

>From what I've analyzed, this make sense. I'll make the suggested
changes and send another patch.

Thanks.

-- 
Regards,
Felipe Pena

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The FAULT_FLAG_WRITE flag has been set based on uninitialized variable

Signed-off-by: Felipe Pena <felipensp@gmail.com>
---
 arch/parisc/mm/fault.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index d10d27a..00c0ed3 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -182,6 +182,9 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 
 	if (user_mode(regs))
 		flags |= FAULT_FLAG_USER;
+
+	acc_type = parisc_acctyp(code, regs->iir);
+
 	if (acc_type & VM_WRITE)
 		flags |= FAULT_FLAG_WRITE;
 retry:
@@ -196,8 +199,6 @@ retry:
 
 good_area:
 
-	acc_type = parisc_acctyp(code,regs->iir);

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X-Mozilla-Keys:                                                                                 
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Subject: [Resend with ACK][PATCH] mm/arch: use NUMA_NODE
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/39057>

Use more appropriate NUMA_NO_NODE instead of -1 in all archs' module_alloc()

Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/arm/kernel/module.c    |    2 +-
 arch/arm64/kernel/module.c  |    2 +-
 arch/mips/kernel/module.c   |    2 +-
 arch/parisc/kernel/module.c |    2 +-
 arch/s390/kernel/module.c   |    2 +-
 arch/sparc/kernel/module.c  |    2 +-
 arch/x86/kernel/module.c    |    2 +-
 7 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index 85c3fb6..8f4cff3 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -40,7 +40,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL_EXEC, -1,
+				GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index ca0e3d5..8f898bd 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -29,7 +29,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL_EXEC, -1,
+				    GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index 977a623..b507e07 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -46,7 +46,7 @@ static DEFINE_SPINLOCK(dbe_lock);
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULE_START, MODULE_END,
-				GFP_KERNEL, PAGE_KERNEL, -1,
+				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 2a625fb..50dfafc 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -219,7 +219,7 @@ void *module_alloc(unsigned long size)
 	 * init_data correctly */
 	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
 				    GFP_KERNEL | __GFP_HIGHMEM,
-				    PAGE_KERNEL_RWX, -1,
+				    PAGE_KERNEL_RWX, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 7845e15..b89b591 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -50,7 +50,7 @@ void *module_alloc(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL, -1,
+				    GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 #endif
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index 4435488..97655e0 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -29,7 +29,7 @@ static void *module_map(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL, -1,
+				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #else
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index 216a4d7..18be189 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -49,7 +49,7 @@ void *module_alloc(unsigned long size)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
 				GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
-				-1, __builtin_return_address(0));
+				NUMA_NO_NODE, __builtin_return_address(0));
 }
 
 #ifdef CONFIG_X86_32
-- 
1.7.1





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X-Mozilla-Keys:                                                                                 
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Subject: [Resend with ACK][PATCH] mm/arch: use NUMA_NO_NODE
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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/39058>

Use more appropriate NUMA_NO_NODE instead of -1 in all archs' module_alloc()

Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/arm/kernel/module.c    |    2 +-
 arch/arm64/kernel/module.c  |    2 +-
 arch/mips/kernel/module.c   |    2 +-
 arch/parisc/kernel/module.c |    2 +-
 arch/s390/kernel/module.c   |    2 +-
 arch/sparc/kernel/module.c  |    2 +-
 arch/x86/kernel/module.c    |    2 +-
 7 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index 85c3fb6..8f4cff3 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -40,7 +40,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL_EXEC, -1,
+				GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index ca0e3d5..8f898bd 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -29,7 +29,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL_EXEC, -1,
+				    GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index 977a623..b507e07 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -46,7 +46,7 @@ static DEFINE_SPINLOCK(dbe_lock);
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULE_START, MODULE_END,
-				GFP_KERNEL, PAGE_KERNEL, -1,
+				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 2a625fb..50dfafc 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -219,7 +219,7 @@ void *module_alloc(unsigned long size)
 	 * init_data correctly */
 	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
 				    GFP_KERNEL | __GFP_HIGHMEM,
-				    PAGE_KERNEL_RWX, -1,
+				    PAGE_KERNEL_RWX, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 7845e15..b89b591 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -50,7 +50,7 @@ void *module_alloc(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL, -1,
+				    GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 #endif
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index 4435488..97655e0 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -29,7 +29,7 @@ static void *module_map(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL, -1,
+				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #else
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index 216a4d7..18be189 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -49,7 +49,7 @@ void *module_alloc(unsigned long size)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
 				GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
-				-1, __builtin_return_address(0));
+				NUMA_NO_NODE, __builtin_return_address(0));
 }
 
 #ifdef CONFIG_X86_32
-- 
1.7.1





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X-Mozilla-Keys:                                                                                 

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Subject: Re: [Resend with ACK][PATCH] mm/arch: use NUMA_NODE
Date: Tue, 24 Sep 2013 19:35:29 -0700 (PDT)
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Cc: Andrew Morton <akpm@linux-foundation.org>, 
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To: Jianguo Wu <wujianguo@huawei.com>
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On Mon, 23 Sep 2013, Jianguo Wu wrote:

> Use more appropriate NUMA_NO_NODE instead of -1 in all archs' module_alloc()
> 
> Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
> Acked-by: Ralf Baechle <ralf@linux-mips.org>

Acked-by: David Rientjes <rientjes@google.com>

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From - Thu Nov 08 21:09:42 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix interruption handler to respect
 pagefault_disable()
Date: Tue, 1 Oct 2013 21:54:46 +0200
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To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
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Running an "echo t > /proc/sysrq-trigger" crashes the parisc kernel.  The
problem is, that in print_worker_info() we try to read the workqueue info via
the probe_kernel_read() functions which use pagefault_disable() to avoid
crashes like this:
    probe_kernel_read(&pwq, &worker->current_pwq, sizeof(pwq));
    probe_kernel_read(&wq, &pwq->wq, sizeof(wq));
    probe_kernel_read(name, wq->name, sizeof(name) - 1);

The problem here is, that the first probe_kernel_read(&pwq) might return zero
in pwq and as such the following probe_kernel_reads() try to access contents of
the page zero which is read protected and generate a kernel segfault. 

With this patch we fix the interruption handler to call parisc_terminate()
directly only if pagefault_disable() was not called (in which case
preempt_count()==0).  Otherwise we hand over to the pagefault handler which
will try to look up the faulting address in the fixup tables.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v3.0+

diff --git a/arch/parisc/include/asm/traps.h b/arch/parisc/include/asm/traps.h
index 1945f99..4736020 100644
--- a/arch/parisc/include/asm/traps.h
+++ b/arch/parisc/include/asm/traps.h
@@ -6,7 +6,7 @@ struct pt_regs;
 
 /* traps.c */
 void parisc_terminate(char *msg, struct pt_regs *regs,
-		int code, unsigned long offset);
+		int code, unsigned long offset) __noreturn __cold;
 
 /* mm/fault.c */
 void do_page_fault(struct pt_regs *regs, unsigned long code,
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 04e47c6..b3f87a3 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -805,14 +805,14 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 	else {
 
 	    /*
-	     * The kernel should never fault on its own address space.
+	     * The kernel should never fault on its own address space,
+	     * unless pagefault_disable() was called before.
 	     */
 
-	    if (fault_space == 0) 
+	    if (fault_space == 0 && !in_atomic())
 	    {
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
 		parisc_terminate("Kernel Fault", regs, code, fault_address);
-	
 	    }
 	}
 
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From - Thu Nov 08 21:09:42 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] [workqueue] check values of pwq and wq in
 print_worker_info() before use
Date: Tue, 1 Oct 2013 22:35:20 +0200
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To: Tejun Heo <tj@kernel.org>, Libin <huawei.libin@huawei.com>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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print_worker_info() includes no validity check on the pwq and wq
pointers before handing them over to the probe_kernel_read() functions.

It seems that most architectures don't care about that, but at least on
the parisc architecture this leads to a kernel crash since accesses to
page zero are protected by the kernel for security reasons.

Fix this problem by verifying the contents of pwq and wq before usage.
Even if probe_kernel_read() usually prevents such crashes by disabling
page faults, clean code should always include such checks. 

Without this fix issuing "echo t > /proc/sysrq-trigger" will immediately
crash the Linux kernel on the parisc architecture.

CC: Tejun Heo <tj@kernel.org>
CC: Libin <huawei.libin@huawei.com>
CC: linux-parisc@vger.kernel.org
CC: James.Bottomley@HansenPartnership.com
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 987293d..c03b47f 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -4512,8 +4512,10 @@ void print_worker_info(const char *log_lvl, struct task_struct *task)
 	 */
 	probe_kernel_read(&fn, &worker->current_func, sizeof(fn));
 	probe_kernel_read(&pwq, &worker->current_pwq, sizeof(pwq));
-	probe_kernel_read(&wq, &pwq->wq, sizeof(wq));
-	probe_kernel_read(name, wq->name, sizeof(name) - 1);
+	if (pwq)
+		probe_kernel_read(&wq, &pwq->wq, sizeof(wq));
+	if (wq)
+		probe_kernel_read(name, wq->name, sizeof(name) - 1);
 
 	/* copy worker description */
 	probe_kernel_read(&desc_valid, &worker->desc_valid, sizeof(desc_valid));
--
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From - Thu Nov 08 21:09:42 2018
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Subject: Re: [PATCH] [workqueue] check values of pwq and wq in
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To: Helge Deller <deller@gmx.de>
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Hello,

On Tue, Oct 01, 2013 at 10:35:20PM +0200, Helge Deller wrote:
> print_worker_info() includes no validity check on the pwq and wq
> pointers before handing them over to the probe_kernel_read() functions.
> 
> It seems that most architectures don't care about that, but at least on
> the parisc architecture this leads to a kernel crash since accesses to
> page zero are protected by the kernel for security reasons.
> 
> Fix this problem by verifying the contents of pwq and wq before usage.
> Even if probe_kernel_read() usually prevents such crashes by disabling
> page faults, clean code should always include such checks. 
> 
> Without this fix issuing "echo t > /proc/sysrq-trigger" will immediately
> crash the Linux kernel on the parisc architecture.

Hmm... um had similar problem but the root cause here is that the arch
isn't implementing probe_kernel_read() properly.  We really have no
idea what the pointer value may be at the dump point and that's why we
use probe_kernel_read().  If something like the above is necessary for
the time being, the correct place would be the arch
probe_kernel_read() implementation.  James, would it be difficult
implement proper probe_kernel_read() on parisc?

Thanks.

-- 
tejun
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From - Thu Nov 08 21:09:42 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] [workqueue] check values of pwq and wq in print_worker_info()
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On 10/01/2013 10:43 PM, Tejun Heo wrote:
> Hello,
> 
> On Tue, Oct 01, 2013 at 10:35:20PM +0200, Helge Deller wrote:
>> print_worker_info() includes no validity check on the pwq and wq
>> pointers before handing them over to the probe_kernel_read() functions.
>>
>> It seems that most architectures don't care about that, but at least on
>> the parisc architecture this leads to a kernel crash since accesses to
>> page zero are protected by the kernel for security reasons.
>>
>> Fix this problem by verifying the contents of pwq and wq before usage.
>> Even if probe_kernel_read() usually prevents such crashes by disabling
>> page faults, clean code should always include such checks. 
>>
>> Without this fix issuing "echo t > /proc/sysrq-trigger" will immediately
>> crash the Linux kernel on the parisc architecture.
> 
> Hmm... um had similar problem but the root cause here is that the arch
> isn't implementing probe_kernel_read() properly.  We really have no
> idea what the pointer value may be at the dump point and that's why we
> use probe_kernel_read().  If something like the above is necessary for
> the time being, the correct place would be the arch
> probe_kernel_read() implementation.  James, would it be difficult
> implement proper probe_kernel_read() on parisc?

No, it's not really complicated.
That was my initial way to work around that problem.

But is this really necessary? Isn't a pointer which points to mem zero most
likely wrong on any architecture?

In addition I wrote another patch to work around that problem in the parisc
page fault handler (which is needed anyway) too:
https://patchwork.kernel.org/patch/2971701/

So, in summary my patch here is not really necessary, but for the sake of
clean code I think it doesn't hurt either and as such it would be nice if
you could apply it.

Helge

From - Thu Nov 08 21:09:42 2018
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From: Tejun Heo <tj@kernel.org>
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Subject: Re: [PATCH] [workqueue] check values of pwq and wq in
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On Tue, Oct 01, 2013 at 10:53:31PM +0200, Helge Deller wrote:
> So, in summary my patch here is not really necessary, but for the sake of
> clean code I think it doesn't hurt either and as such it would be nice if
> you could apply it.

What? function *must* take any value and try to access it and not
cause failure.  That's the *whole* purpose of that interface.  How is
having incomplete spurious checks around it "clean code" in any sense
of the word?  That doesn't make any sense.

 Nacked-by: Tejun Heo <tj@kernel.org>

and *please* don't add any checks like that anywhere else in the
kernel.

Thanks.

-- 
tejun
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On Tue, Oct 01, 2013 at 05:03:48PM -0400, Tejun Heo wrote:
> On Tue, Oct 01, 2013 at 10:53:31PM +0200, Helge Deller wrote:
> > So, in summary my patch here is not really necessary, but for the sake of
> > clean code I think it doesn't hurt either and as such it would be nice if
> > you could apply it.
> 
> What? function *must* take any value and try to access it and not
> cause failure.  That's the *whole* purpose of that interface.  How is
> having incomplete spurious checks around it "clean code" in any sense
> of the word?  That doesn't make any sense.

Just in case you didn't know already.  probe_kernel_read()'s role is
to take any ulong value and dereference it if it can.  If not, it can
return any value, but it shouldn't crash in any case.  If you're just
adding NULL test in probe_kernel_read(), you're just masking a common
failure pattern and the kernel still *will* panic while dumping the
states.  If a specific arch doesn't have proper probe_kernel_read()
implementation, adding if (!NULL) test there could be a temporary
workaround, but it should be clearly marked as such.

-- 
tejun
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On Tue, 2013-10-01 at 16:43 -0400, Tejun Heo wrote:
> Hello,
> 
> On Tue, Oct 01, 2013 at 10:35:20PM +0200, Helge Deller wrote:
> > print_worker_info() includes no validity check on the pwq and wq
> > pointers before handing them over to the probe_kernel_read() functions.
> > 
> > It seems that most architectures don't care about that, but at least on
> > the parisc architecture this leads to a kernel crash since accesses to
> > page zero are protected by the kernel for security reasons.
> > 
> > Fix this problem by verifying the contents of pwq and wq before usage.
> > Even if probe_kernel_read() usually prevents such crashes by disabling
> > page faults, clean code should always include such checks. 
> > 
> > Without this fix issuing "echo t > /proc/sysrq-trigger" will immediately
> > crash the Linux kernel on the parisc architecture.
> 
> Hmm... um had similar problem but the root cause here is that the arch
> isn't implementing probe_kernel_read() properly.  We really have no
> idea what the pointer value may be at the dump point and that's why we
> use probe_kernel_read().  If something like the above is necessary for
> the time being, the correct place would be the arch
> probe_kernel_read() implementation.  James, would it be difficult
> implement proper probe_kernel_read() on parisc?

The problem seems to be that some traps bypass our exception table
handling.  Helge, do you have the actual stack trace for this?  That
should show where the exception handling is missing.

Thanks,

James



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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] [workqueue] check values of pwq and wq in print_worker_info()
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Cc: Tejun Heo <tj@kernel.org>, Libin <huawei.libin@huawei.com>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On 10/01/2013 11:40 PM, James Bottomley wrote:
> On Tue, 2013-10-01 at 16:43 -0400, Tejun Heo wrote:
>> Hello,
>>
>> On Tue, Oct 01, 2013 at 10:35:20PM +0200, Helge Deller wrote:
>>> print_worker_info() includes no validity check on the pwq and wq
>>> pointers before handing them over to the probe_kernel_read() functions.
>>>
>>> It seems that most architectures don't care about that, but at least on
>>> the parisc architecture this leads to a kernel crash since accesses to
>>> page zero are protected by the kernel for security reasons.
>>>
>>> Fix this problem by verifying the contents of pwq and wq before usage.
>>> Even if probe_kernel_read() usually prevents such crashes by disabling
>>> page faults, clean code should always include such checks. 
>>>
>>> Without this fix issuing "echo t > /proc/sysrq-trigger" will immediately
>>> crash the Linux kernel on the parisc architecture.
>>
>> Hmm... um had similar problem but the root cause here is that the arch
>> isn't implementing probe_kernel_read() properly.  We really have no
>> idea what the pointer value may be at the dump point and that's why we
>> use probe_kernel_read().  If something like the above is necessary for
>> the time being, the correct place would be the arch
>> probe_kernel_read() implementation.  James, would it be difficult
>> implement proper probe_kernel_read() on parisc?
> 
> The problem seems to be that some traps bypass our exception table
> handling.  

Yes, that's correct.
It's trap #26 and we directly call parisc_terminate() for fault_space==0
without checking the exception table.
See my patch I posted a few hours ago which fixes this:
https://patchwork.kernel.org/patch/2971701/

> Helge, do you have the actual stack trace for this?  That
> should show where the exception handling is missing.

Here it is:
[47072.976000] ksoftirqd/0     R  running task        0     3      2 0x00000000
[47072.976000] Backtrace:
[47072.976000]  [<0000000040113a54>] __schedule+0x62c/0x808
[47072.976000]
[47072.976000] kworker/0:0H    S 00000000401040c0     0     5      2 0x00000000
[47073.468000] Backtrace:
[47073.468000]  [<0000000040464264>] pa_memcpy+0x44/0xb0
[47073.468000]  [<00000000404643e0>] __copy_from_user+0x60/0x90
[47073.468000]  [<00000000401d99bc>] __probe_kernel_read+0x54/0x90
[47073.468000]  [<000000004016cc70>] print_worker_info+0x158/0x2c0
[47073.468000]  [<0000000040185a60>] sched_show_task+0x1c8/0x210
[47073.468000]  [<0000000040185b64>] show_state_filter+0xbc/0x138
[47073.468000]  [<00000000404e85c4>] sysrq_handle_showstate+0x34/0x48
[47073.468000]  [<00000000404e9154>] __handle_sysrq+0x174/0x2f0
[47073.468000]  [<00000000404e933c>] write_sysrq_trigger+0x6c/0x90
[47073.468000]  [<00000000402ca2fc>] proc_reg_write+0xbc/0x130
[47073.468000]  [<0000000040236d44>] vfs_write+0x114/0x268
[47073.468000]  [<00000000402373a4>] SyS_write+0x94/0xf8
[47073.468000]  [<0000000040105fc0>] syscall_exit+0x0/0x14
[47073.468000]
[47073.468000]
[47073.468000] Kernel Fault: Code=26 regs=00000000958a09b0 (Addr=0000000000000008)
[47073.468000] CPU: 0 PID: 30189 Comm: bash Not tainted 3.12.0-rc3-64bit+ #1
[47073.468000] task: 000000007ba64100 ti: 00000000958a0000 task.ti: 00000000958a0000
[47073.468000]
[47073.468000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[47073.468000] PSW: 00001000000001001111111100001110 Not tainted
[47073.468000] r00-03  000000ff0804ff0e 00000000958a08c0 0000000040464264 00000000958a0960
[47073.468000] r04-07  0000000040d73db0 0000000000000008 0000000000000008 00000000958a06f8
[47073.468000] r08-11  00000000958a0600 0000000040c49d18 00000000af535494 00000000958a0370
[47073.468000] r12-15  0000000000000000 0000000000000000 000000000010e7e8 00000000000fde28
[47073.468000] r16-19  0000000000000000 00000000000c7800 0000000000000000 0000000000000000
[47073.468000] r20-23  00000000958a06e0 0000000000000018 0000000000000018 0000000000000003
[47073.468000] r24-27  0000000000000008 0000000000000008 00000000958a06f8 0000000040d73db0
[47073.468000] r28-31  00000000958a06f8 00000000958a0930 00000000958a09b0 0000000000000008
[47073.468000] sr00-03  0000000005dc5000 0000000000000000 0000000000000000 0000000005dc5000
[47073.468000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[47073.468000]
[47073.468000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040463fdc 0000000040463fe0
[47073.468000]  IIR: 0fe25033    ISR: 0000000000000000  IOR: 0000000000000008
[47073.468000]  CPU:        0   CR30: 00000000958a0000 CR31: 0000000011111111
[47073.468000]  ORIG_R28: 00000000958a0b40
[47073.468000]  IAOQ[0]: pa_memcpy_internal+0xec/0x2b4
[47073.468000]  IAOQ[1]: pa_memcpy_internal+0xf0/0x2b4
[47073.468000]  RP(r2): pa_memcpy+0x44/0xb0
[47073.468000] Backtrace:
[47073.468000]  [<0000000040464264>] pa_memcpy+0x44/0xb0
[47073.468000]  [<00000000404643e0>] __copy_from_user+0x60/0x90
[47073.468000]  [<00000000401d99bc>] __probe_kernel_read+0x54/0x90
[47073.468000]  [<000000004016cc70>] print_worker_info+0x158/0x2c0
[47073.468000]  [<0000000040185a60>] sched_show_task+0x1c8/0x210
[47073.468000]  [<0000000040185b64>] show_state_filter+0xbc/0x138
[47073.468000]  [<00000000404e85c4>] sysrq_handle_showstate+0x34/0x48
[47073.468000]  [<00000000404e9154>] __handle_sysrq+0x174/0x2f0
[47073.468000]  [<00000000404e933c>] write_sysrq_trigger+0x6c/0x90
[47073.468000]  [<00000000402ca2fc>] proc_reg_write+0xbc/0x130
[47073.468000]  [<0000000040236d44>] vfs_write+0x114/0x268
[47073.468000]  [<00000000402373a4>] SyS_write+0x94/0xf8
[47073.468000]  [<0000000040105fc0>] syscall_exit+0x0/0x14
[47073.468000]
[47073.468000] Kernel panic - not syncing: Kernel Fault

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From - Thu Nov 08 21:09:42 2018
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Subject: Re: [PATCH] [workqueue] check values of pwq and wq in print_worker_info()
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On 10/01/2013 11:07 PM, Tejun Heo wrote:
> On Tue, Oct 01, 2013 at 05:03:48PM -0400, Tejun Heo wrote:
>> On Tue, Oct 01, 2013 at 10:53:31PM +0200, Helge Deller wrote:
>>> So, in summary my patch here is not really necessary, but for the sake of
>>> clean code I think it doesn't hurt either and as such it would be nice if
>>> you could apply it.
>>
>> What? function *must* take any value and try to access it and not
>> cause failure.  That's the *whole* purpose of that interface.  How is
>> having incomplete spurious checks around it "clean code" in any sense
>> of the word?  That doesn't make any sense.
> 
> Just in case you didn't know already.  probe_kernel_read()'s role is
> to take any ulong value and dereference it if it can.  If not, it can
> return any value, but it shouldn't crash in any case.  If you're just
> adding NULL test in probe_kernel_read(), you're just masking a common
> failure pattern and the kernel still *will* panic while dumping the
> states.  If a specific arch doesn't have proper probe_kernel_read()
> implementation, adding if (!NULL) test there could be a temporary
> workaround, but it should be clearly marked as such.

Sure, probe_kernel_read() takes care that no segfaults will happen.
Nevertheless, if we know that "pwq" might become NULL, why access pwq->wq at all?
  struct pool_workqueue *pwq = NULL;
  probe_kernel_read(&wq, &pwq>wq, sizeof(wq));

If you wouldn't have used probe_kernel_read() you would never code it 
like that. That's what I meant when I wrote "clean coding" (aka "similar
to what you would have done without probe_kernel_read()").

Helge
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Hello,

On Wed, Oct 02, 2013 at 12:34:53AM +0200, Helge Deller wrote:
> Sure, probe_kernel_read() takes care that no segfaults will happen.
> Nevertheless, if we know that "pwq" might become NULL, why access pwq->wq at all?
>   struct pool_workqueue *pwq = NULL;
>   probe_kernel_read(&wq, &pwq>wq, sizeof(wq));
> 
> If you wouldn't have used probe_kernel_read() you would never code it 
> like that. That's what I meant when I wrote "clean coding" (aka "similar
> to what you would have done without probe_kernel_read()").

Because it is using probe_kernel_read() and such test wouldn't mean
anything?  It may be NULL, it may be 1 or full Fs.  NULL is just one
of many illegal pointers which may happen.  Why add code which doesn't
achieve anything when you're explicitly trying to access pointers
which you know could be invalid?  Why is that "clean"?  Is "if (p)
kfree(p)" cleaner than "kfree(p)"?

Thanks.

-- 
tejun
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From: Tejun Heo <tj@kernel.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] [workqueue] check values of pwq and wq in
 print_worker_info() before use
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	James Bottomley <James.Bottomley@HansenPartnership.com>
To: Helge Deller <deller@gmx.de>
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On Tue, Oct 01, 2013 at 06:40:23PM -0400, Tejun Heo wrote:
> Because it is using probe_kernel_read() and such test wouldn't mean
> anything?  It may be NULL, it may be 1 or full Fs.  NULL is just one
> of many illegal pointers which may happen.  Why add code which doesn't
> achieve anything when you're explicitly trying to access pointers
> which you know could be invalid?  Why is that "clean"?  Is "if (p)
> kfree(p)" cleaner than "kfree(p)"?

Here's one general rule of thumb for "cleanliness" - try to do the
minimal because that's something many people can agree on.  If people
do stuff which aren't necessary, naturally different people would have
different opinions on what's cleaner / better and inevitably end up
with different choices as the choices made are functionally superflous
none would fail and we'll end up with various variants for the same
thing for no good reason, which is messy.  Adding if (p) in front of
probe_kernel_read(p) is inherently superflous and you wouldn't have
any way to enforce or even encourage such practice and the end result
would inevitably be if (p) being sprayed randomly, which is the
opposite of cleanliness.

So, no, please don't add random tests which aren't essential.  It is
inherently messy thing to do.

Thanks.

-- 
tejun
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From - Thu Nov 08 21:09:43 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] [workqueue] check values of pwq and wq in
 print_worker_info() before use
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On Wed, 2013-10-02 at 00:07 +0200, Helge Deller wrote:
> On 10/01/2013 11:40 PM, James Bottomley wrote:
> > On Tue, 2013-10-01 at 16:43 -0400, Tejun Heo wrote:
> >> Hello,
> >>
> >> On Tue, Oct 01, 2013 at 10:35:20PM +0200, Helge Deller wrote:
> >>> print_worker_info() includes no validity check on the pwq and wq
> >>> pointers before handing them over to the probe_kernel_read() functions.
> >>>
> >>> It seems that most architectures don't care about that, but at least on
> >>> the parisc architecture this leads to a kernel crash since accesses to
> >>> page zero are protected by the kernel for security reasons.
> >>>
> >>> Fix this problem by verifying the contents of pwq and wq before usage.
> >>> Even if probe_kernel_read() usually prevents such crashes by disabling
> >>> page faults, clean code should always include such checks. 
> >>>
> >>> Without this fix issuing "echo t > /proc/sysrq-trigger" will immediately
> >>> crash the Linux kernel on the parisc architecture.
> >>
> >> Hmm... um had similar problem but the root cause here is that the arch
> >> isn't implementing probe_kernel_read() properly.  We really have no
> >> idea what the pointer value may be at the dump point and that's why we
> >> use probe_kernel_read().  If something like the above is necessary for
> >> the time being, the correct place would be the arch
> >> probe_kernel_read() implementation.  James, would it be difficult
> >> implement proper probe_kernel_read() on parisc?
> > 
> > The problem seems to be that some traps bypass our exception table
> > handling.  
> 
> Yes, that's correct.
> It's trap #26 and we directly call parisc_terminate() for fault_space==0
> without checking the exception table.
> See my patch I posted a few hours ago which fixes this:
> https://patchwork.kernel.org/patch/2971701/

That doesn't quite look right ... I guessed it was probably access
rights, so we should do an exception table fixup, so isn't this the fix?
because we shouldn't call do_page_fault if there's no exception table.

James

---
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 04e47c6..25a088a 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -684,6 +684,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 		/* Fall Through */
 	case 26: 
 		/* PCXL: Data memory access rights trap */
+		if (!user_mode(regs) && fixup_exception(regs))
+			return;
 		fault_address = regs->ior;
 		fault_space   = regs->isr;
 		break;


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From - Thu Nov 08 21:09:43 2018
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From - Thu Nov 08 21:09:43 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] [workqueue] check values of pwq and wq in print_worker_info() before use
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On 1-Oct-13, at 6:50 PM, James Bottomley wrote:

> On Wed, 2013-10-02 at 00:07 +0200, Helge Deller wrote:
>> On 10/01/2013 11:40 PM, James Bottomley wrote:
>>> On Tue, 2013-10-01 at 16:43 -0400, Tejun Heo wrote:
>>>> Hello,
>>>>
>>>> On Tue, Oct 01, 2013 at 10:35:20PM +0200, Helge Deller wrote:
>>>>> print_worker_info() includes no validity check on the pwq and wq
>>>>> pointers before handing them over to the probe_kernel_read()  
>>>>> functions.
>>>>>
>>>>> It seems that most architectures don't care about that, but at  
>>>>> least on
>>>>> the parisc architecture this leads to a kernel crash since  
>>>>> accesses to
>>>>> page zero are protected by the kernel for security reasons.
>>>>>
>>>>> Fix this problem by verifying the contents of pwq and wq before  
>>>>> usage.
>>>>> Even if probe_kernel_read() usually prevents such crashes by  
>>>>> disabling
>>>>> page faults, clean code should always include such checks.
>>>>>
>>>>> Without this fix issuing "echo t > /proc/sysrq-trigger" will  
>>>>> immediately
>>>>> crash the Linux kernel on the parisc architecture.
>>>>
>>>> Hmm... um had similar problem but the root cause here is that the  
>>>> arch
>>>> isn't implementing probe_kernel_read() properly.  We really have no
>>>> idea what the pointer value may be at the dump point and that's  
>>>> why we
>>>> use probe_kernel_read().  If something like the above is  
>>>> necessary for
>>>> the time being, the correct place would be the arch
>>>> probe_kernel_read() implementation.  James, would it be difficult
>>>> implement proper probe_kernel_read() on parisc?
>>>
>>> The problem seems to be that some traps bypass our exception table
>>> handling.
>>
>> Yes, that's correct.
>> It's trap #26 and we directly call parisc_terminate() for  
>> fault_space==0
>> without checking the exception table.
>> See my patch I posted a few hours ago which fixes this:
>> https://patchwork.kernel.org/patch/2971701/
>
> That doesn't quite look right ... I guessed it was probably access
> rights, so we should do an exception table fixup, so isn't this the  
> fix?
> because we shouldn't call do_page_fault if there's no exception table.

What about trap #18?  It appears the same problem can occur on PCXS.

I have the strong feeling that __copy_from_user still won't be bullet  
proof.
See attached fault.  As far as I know, we don't have an OS HPMC handler.

>
> James
>
> ---
> diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
> index 04e47c6..25a088a 100644
> --- a/arch/parisc/kernel/traps.c
> +++ b/arch/parisc/kernel/traps.c
> @@ -684,6 +684,8 @@ void notrace handle_interruption(int code,  
> struct pt_regs *regs)
> 		/* Fall Through */
> 	case 26:
> 		/* PCXL: Data memory access rights trap */
> +		if (!user_mode(regs) && fixup_exception(regs))
> +			return;
> 		fault_address = regs->ior;
> 		fault_space   = regs->isr;
> 		break;
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux- 
> parisc" in
> the body of a message to majordomo@vger.kernel.org
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>

--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-4-787863263
Content-Disposition: attachment; filename="hpmc-20130929.txt"
Content-Type: text/plain; x-unix-mode=0644; name="hpmc-20130929.txt"
Content-Transfer-Encoding: quoted-printable

=EF=BB=BFService Menu: Enter command > pim


PROCESSOR PIM INFORMATION

Original Product Number:  A7136A
Current Product Number:   A7136A


-----------------  Processor 0 HPMC Information - PDC Version: 46.34  =
------=20

Timestamp =3D   Sun Sep  29 14:40:29 GMT 2013    (20:13:09:29:14:40:29)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0xe800035c00e00000 0x0000000000000000


General Registers 0 - 31
00-03  0000000000000000  00000000406143a0  0000000000000000  =
0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000
08-11  000000000000001a  00047dbc422040a0  0000000000000000  =
0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000
16-19  0000000000000000  00000000ffffffff  0000000000000000  =
0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000
24-27  000000000000d000  0000000000000000  0000000000000000  =
0000000000000000
28-31  0000000000000000  0000000000000000  160012bc00e00000  =
0000000000000000


                                                                =20
Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000
08-11  00000000000025ac  0000000000000000  00000000000000c0  =
0000000000000000
12-15  0000000000000000  0000000000000000  0000000000103000  =
ffe0000000000000
16-19  00000065514c48b9  0000000000000000  0000000000000000  =
0000000000000000
20-23  0000000000000000  0000000000000000  000000f008008200  =
0000000000000000
24-27  00000000006b4000  00000001fbc7a000  ffffffffffffffff  =
ffffffffffffffff
28-31  ffffffffffffffff  ffffffffffffffff  0000000040614000  =
a001011408940009

                                                                =20
Space Registers 0 - 7
00-03  000000000096b000  000000000096b000  0000000000000000  =
000000000096b000
04-07  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000


IIA Space (back entry)       =3D 0x0000000000000000
IIA Offset (back entry)      =3D 0x0000000000000000
Check Type                   =3D 0xe0000000
Cpu State                    =3D 0x1e000000
Cache Check                  =3D 0xc0000000
TLB Check                    =3D 0x40000000
Bus Check                    =3D 0x00000000
Assists Check                =3D 0x0096b000
Assist State                 =3D 0x00000000
Path Info                    =3D 0x00000000
System Responder Address     =3D 0x0000000000000000
System Requestor Address     =3D 0x0000000000000000


                                                                =20
Floating Point Registers 0 - 31
00-03  0c15580000000000  0000000000000000  0000000000000000  =
0000000000000000
04-07  0000000a8b7ff33a  a000000000000000  0000000640000000  =
0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  =
0000000000000000


PIM Revision                 =3D 0x0000000000000001               =20
CPU ID                       =3D 0x0000000000000014
CPU Revision                 =3D 0x0000000000000031
Cpu Serial Number            =3D 0x46100b89e43f0503
Check Summary                =3D 0xc0400040c2730000
SAL Timestamp                =3D 0x0000000052483bdd
System Firmware Rev.         =3D 0x00000ba20000121a
PDC Relocation Address       =3D 0xfffffff0f0c00000
Available Memory             =3D 0x00000001ffe00000
CPU Diagnose Register 2      =3D 0x311202200004200a
MIB_STAT                     =3D 0x0040000000200000
MIB_LOG1                     =3D 0x0000000000555500
MIB_LOG2                     =3D 0x0000000000000000
MIB_ECC_DATA                 =3D 0x286caf8e14000000
ICache Info                  =3D 0x0070000000000000
DCache Info                  =3D 0x0000000000000000
Sharedcache Info1            =3D 0x0000000000000000
Sharedcache Info2            =3D 0x0000000000000000
MIB_RSLOG1                   =3D 0x4930408847b60466
MIB_RSLOG2                   =3D 0x0a00010000000000
MIB_RQLOG                    =3D 0xc050408847b69400
MIB_REQLOGa                  =3D 0xa498204423db2a80
MIB_REQLOGb                  =3D 0x198280000e008000
Reserved                     =3D 0x0000000000000000
Cache Repair Detail          =3D 0x0000000000000000

PIM Detail Text:

                                                                =20
--------------  Memory Error Log Information  --------------
Timestamp =3D   Sun Sep  29 14:40:30 GMT 2013    (20:13:09:29:14:40:30)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
          X    ERR_TIMEOUT                              =20


  General Bus Logs:=20
    REQUESTOR_ID               =3D 0x0000000000000000
    RESPONDER_ID               =3D 0x0000000000000000
    TARGET_ID                  =3D 0x00014dbc42204190
    BUS_SPECIFIC_DATA          =3D 0x0000000000189000
    ERROR_LOG_EN               =3D 0x0000000000001dff
    ERROR_SIG_EN               =3D 0x0000000000000157
    ERROR_STATUS               =3D 0x0000000000000008
    ERROR_OVFL                 =3D 0x0000000000000000
    ERROR_FIRST                =3D 0x0000000000000000
                                                                =20
  Detailed Bus Logs: =20
    AP_ADDRa      =3D 0x0000000000000000
    AP_ADDRb      =3D 0x0000000000000000
    ST_ADDRa      =3D 0x0000000000000000
    ST_ADDRb      =3D 0x0000000000000000
    RT_ADDRa      =3D 0x00494dbc42204190
    RT_ADDRb      =3D 0x0030000700001418
    RP_ADDRa      =3D 0x0000000000000000
    RP_ADDRb      =3D 0x0000000000000000
    LE_ADDRa      =3D 0x0000000000000000
    LE_ADDRb      =3D 0x0000000000000000
    ST_TO         =3D 0x0000000000011001
    PT_TO         =3D 0x000000000007a120
    RT_TO         =3D 0x0000000000010003


                                                                =20
------------  I/O Module Error Log Information  ------------

  No IO subsystem errors recorded


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From - Thu Nov 08 21:09:43 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] [workqueue] check values of pwq and wq in print_worker_info() before use
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On 1-Oct-13, at 6:50 PM, James Bottomley wrote:

> On Wed, 2013-10-02 at 00:07 +0200, Helge Deller wrote:
>> On 10/01/2013 11:40 PM, James Bottomley wrote:
>>> On Tue, 2013-10-01 at 16:43 -0400, Tejun Heo wrote:
>>>> Hello,
>>>>
>>>> On Tue, Oct 01, 2013 at 10:35:20PM +0200, Helge Deller wrote:
>>>>> print_worker_info() includes no validity check on the pwq and wq
>>>>> pointers before handing them over to the probe_kernel_read()  
>>>>> functions.
>>>>>
>>>>> It seems that most architectures don't care about that, but at  
>>>>> least on
>>>>> the parisc architecture this leads to a kernel crash since  
>>>>> accesses to
>>>>> page zero are protected by the kernel for security reasons.
>>>>>
>>>>> Fix this problem by verifying the contents of pwq and wq before  
>>>>> usage.
>>>>> Even if probe_kernel_read() usually prevents such crashes by  
>>>>> disabling
>>>>> page faults, clean code should always include such checks.
>>>>>
>>>>> Without this fix issuing "echo t > /proc/sysrq-trigger" will  
>>>>> immediately
>>>>> crash the Linux kernel on the parisc architecture.
>>>>
>>>> Hmm... um had similar problem but the root cause here is that the  
>>>> arch
>>>> isn't implementing probe_kernel_read() properly.  We really have no
>>>> idea what the pointer value may be at the dump point and that's  
>>>> why we
>>>> use probe_kernel_read().  If something like the above is  
>>>> necessary for
>>>> the time being, the correct place would be the arch
>>>> probe_kernel_read() implementation.  James, would it be difficult
>>>> implement proper probe_kernel_read() on parisc?
>>>
>>> The problem seems to be that some traps bypass our exception table
>>> handling.
>>
>> Yes, that's correct.
>> It's trap #26 and we directly call parisc_terminate() for  
>> fault_space==0
>> without checking the exception table.
>> See my patch I posted a few hours ago which fixes this:
>> https://patchwork.kernel.org/patch/2971701/
>
> That doesn't quite look right ... I guessed it was probably access
> rights, so we should do an exception table fixup, so isn't this the  
> fix?
> because we shouldn't call do_page_fault if there's no exception table.
>
> James
>
> ---
> diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
> index 04e47c6..25a088a 100644
> --- a/arch/parisc/kernel/traps.c
> +++ b/arch/parisc/kernel/traps.c
> @@ -684,6 +684,8 @@ void notrace handle_interruption(int code,  
> struct pt_regs *regs)
> 		/* Fall Through */
> 	case 26:
> 		/* PCXL: Data memory access rights trap */
> +		if (!user_mode(regs) && fixup_exception(regs))
> +			return;
> 		fault_address = regs->ior;
> 		fault_space   = regs->isr;
> 		break;


With this change, boot on rp3440 hangs here:

Freeing unused kernel memory: 256K (000000004079c000 - 00000000407dc000)
Loading, please wait...

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:09:43 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] [workqueue] check values of pwq and wq in print_worker_info()
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On 10/02/2013 12:50 AM, James Bottomley wrote:
> On Wed, 2013-10-02 at 00:07 +0200, Helge Deller wrote:
>> On 10/01/2013 11:40 PM, James Bottomley wrote:
>>> On Tue, 2013-10-01 at 16:43 -0400, Tejun Heo wrote:
>>>> Hello,
>>>>
>>>> On Tue, Oct 01, 2013 at 10:35:20PM +0200, Helge Deller wrote:
>>>>> print_worker_info() includes no validity check on the pwq and wq
>>>>> pointers before handing them over to the probe_kernel_read() functions.
>>>>>
>>>>> It seems that most architectures don't care about that, but at least on
>>>>> the parisc architecture this leads to a kernel crash since accesses to
>>>>> page zero are protected by the kernel for security reasons.
>>>>>
>>>>> Fix this problem by verifying the contents of pwq and wq before usage.
>>>>> Even if probe_kernel_read() usually prevents such crashes by disabling
>>>>> page faults, clean code should always include such checks. 
>>>>>
>>>>> Without this fix issuing "echo t > /proc/sysrq-trigger" will immediately
>>>>> crash the Linux kernel on the parisc architecture.
>>>>
>>>> Hmm... um had similar problem but the root cause here is that the arch
>>>> isn't implementing probe_kernel_read() properly.  We really have no
>>>> idea what the pointer value may be at the dump point and that's why we
>>>> use probe_kernel_read().  If something like the above is necessary for
>>>> the time being, the correct place would be the arch
>>>> probe_kernel_read() implementation.  James, would it be difficult
>>>> implement proper probe_kernel_read() on parisc?
>>>
>>> The problem seems to be that some traps bypass our exception table
>>> handling.  
>>
>> Yes, that's correct.
>> It's trap #26 and we directly call parisc_terminate() for fault_space==0
>> without checking the exception table.
>> See my patch I posted a few hours ago which fixes this:
>> https://patchwork.kernel.org/patch/2971701/
> 
> That doesn't quite look right ... I guessed it was probably access
> rights, so we should do an exception table fixup, so isn't this the fix?
> because we shouldn't call do_page_fault if there's no exception table.
>
> diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
> index 04e47c6..25a088a 100644
> --- a/arch/parisc/kernel/traps.c
> +++ b/arch/parisc/kernel/traps.c
> @@ -684,6 +684,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
>  		/* Fall Through */
>  	case 26: 
>  		/* PCXL: Data memory access rights trap */
> +		if (!user_mode(regs) && fixup_exception(regs))
> +			return;

You need to check for preempt_count()!=0 too, which has been increased by pagefault_disable() inside of probe_kernel_read().
Otherwise every simple memcpy(dest,NULL,count) (*) will sucessfully be handled here and we won't trap
on generic invalid memory accesses inside the kernel.

But basically your patch does exactly the same as mine.

Helge

(*) memcpy() uses internally pa_memcpy() which defines the fixup tables.

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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: optimize variable initialization in do_page_fault
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The attached change defers the initialization of the variables tsk, mm  
and flags until they
are needed.  As a result,  the code won't crash if a kernel probe is  
done with a corrupt context
and the code will be better optimized.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---


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diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 00c0ed3..0293588 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -171,20 +171,25 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 			      unsigned long address)
 {
 	struct vm_area_struct *vma, *prev_vma;
-	struct task_struct *tsk = current;
-	struct mm_struct *mm = tsk->mm;
+	struct task_struct *tsk;
+	struct mm_struct *mm;
 	unsigned long acc_type;
 	int fault;
-	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
+	unsigned int flags;
 
-	if (in_atomic() || !mm)
+	if (in_atomic())
 		goto no_context;
 
+	tsk = current;
+	mm = tsk->mm;
+	if (!mm)
+		goto no_context;
+
+	flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 	if (user_mode(regs))
 		flags |= FAULT_FLAG_USER;
 
 	acc_type = parisc_acctyp(code, regs->iir);

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Signed-off-by: John David Anglin  <dave.anglin@bell.net>

On 1-Oct-13, at 3:54 PM, Helge Deller wrote:

> Running an "echo t > /proc/sysrq-trigger" crashes the parisc  
> kernel.  The
> problem is, that in print_worker_info() we try to read the workqueue  
> info via
> the probe_kernel_read() functions which use pagefault_disable() to  
> avoid
> crashes like this:
>    probe_kernel_read(&pwq, &worker->current_pwq, sizeof(pwq));
>    probe_kernel_read(&wq, &pwq->wq, sizeof(wq));
>    probe_kernel_read(name, wq->name, sizeof(name) - 1);
>
> The problem here is, that the first probe_kernel_read(&pwq) might  
> return zero
> in pwq and as such the following probe_kernel_reads() try to access  
> contents of
> the page zero which is read protected and generate a kernel segfault.
>
> With this patch we fix the interruption handler to call  
> parisc_terminate()
> directly only if pagefault_disable() was not called (in which case
> preempt_count()==0).  Otherwise we hand over to the pagefault  
> handler which
> will try to look up the faulting address in the fixup tables.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
> Cc: <stable@vger.kernel.org> # v3.0+
>
> diff --git a/arch/parisc/include/asm/traps.h b/arch/parisc/include/ 
> asm/traps.h
> index 1945f99..4736020 100644
> --- a/arch/parisc/include/asm/traps.h
> +++ b/arch/parisc/include/asm/traps.h
> @@ -6,7 +6,7 @@ struct pt_regs;
>
> /* traps.c */
> void parisc_terminate(char *msg, struct pt_regs *regs,
> -		int code, unsigned long offset);
> +		int code, unsigned long offset) __noreturn __cold;
>
> /* mm/fault.c */
> void do_page_fault(struct pt_regs *regs, unsigned long code,
> diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
> index 04e47c6..b3f87a3 100644
> --- a/arch/parisc/kernel/traps.c
> +++ b/arch/parisc/kernel/traps.c
> @@ -805,14 +805,14 @@ void notrace handle_interruption(int code,  
> struct pt_regs *regs)
> 	else {
>
> 	    /*
> -	     * The kernel should never fault on its own address space.
> +	     * The kernel should never fault on its own address space,
> +	     * unless pagefault_disable() was called before.
> 	     */
>
> -	    if (fault_space == 0)
> +	    if (fault_space == 0 && !in_atomic())
> 	    {
> 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
> 		parisc_terminate("Kernel Fault", regs, code, fault_address);
> -	
> 	    }
> 	}
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux- 
> parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

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From - Thu Nov 08 21:09:43 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: New udev package requires CONFIG_DEVTMPFS
Date: Sun, 6 Oct 2013 12:46:50 -0400
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I uploaded new consolekit (0.4.6-3) and systemd/udev (204-5) builds to  
the parisc Debian archive.
The new version of consolekit breaks the old version of udev.  The new  
version of udev requires
the running kernel to have been built with CONFIG_DEVTMPFS.

So, I advise not upgrading unless you have primary and backup kernels  
built with CONFIG_DEVTMPFS.

This option is not selected in at least some parisc default configs.

Dave
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Subject: [PATCH v2 08/14] parisc: select ARCH_MAY_HAVE_PC_PARPORT
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Architectures which support CONFIG_PARPORT_PC should select
ARCH_MAY_HAVE_PC_PARPORT.

Signed-off-by: Mark Salter <msalter@redhat.com>
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: Helge Deller <deller@gmx.de>
CC: linux-parisc@vger.kernel.org
---
 arch/parisc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index ad2ce8d..9af24ac 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -1,6 +1,7 @@
 config PARISC
 	def_bool y
 	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	select ARCH_MAY_HAVE_PC_PARPORT
 	select HAVE_IDE
 	select HAVE_OPROFILE
 	select HAVE_FUNCTION_TRACER if 64BIT
-- 
1.8.3.1

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From - Thu Nov 08 21:09:44 2018
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Subject: [PATCH v2 14/14] Kconfig cleanup (PARPORT_PC dependencies)
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Remove messy dependencies from PARPORT_PC by having it depend on one
Kconfig symbol (ARCH_MAY_HAVE_PC_PARPORT) and having architectures
which need it, select ARCH_MAY_HAVE_PC_PARPORT in arch/*/Kconfig.
New architectures are unlikely to need PARPORT_PC, so this avoids
having an ever growing list of architectures to exclude. Those
architectures which do select ARCH_MAY_HAVE_PC_PARPORT in this
patch are the ones which have an asm/parport.h (or use the generic
version).

Signed-off-by: Mark Salter <msalter@redhat.com>
CC: Richard Henderson <rth@twiddle.net>
CC: linux-alpha@vger.kernel.org
CC: Vineet Gupta <vgupta@synopsys.com>
CC: Russell King <linux@arm.linux.org.uk>
CC: linux-arm-kernel@lists.infradead.org
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CC: Fenghua Yu <fenghua.yu@intel.com>
CC: linux-ia64@vger.kernel.org
CC: Geert Uytterhoeven <geert@linux-m68k.org>
CC: linux-m68k@lists.linux-m68k.org
CC: Michal Simek <monstr@monstr.eu>
CC: microblaze-uclinux@itee.uq.edu.au
CC: Ralf Baechle <ralf@linux-mips.org>
CC: linux-mips@linux-mips.org
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: Helge Deller <deller@gmx.de>
CC: linux-parisc@vger.kernel.org
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Paul Mackerras <paulus@samba.org>
CC: linuxppc-dev@lists.ozlabs.org
CC: Paul Mundt <lethal@linux-sh.org>
CC: linux-sh@vger.kernel.org
CC: "David S. Miller" <davem@davemloft.net>
CC: sparclinux@vger.kernel.org
CC: Guan Xuetao <gxt@mprc.pku.edu.cn>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Ingo Molnar <mingo@redhat.com>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: x86@kernel.org
---
 drivers/parport/Kconfig | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/parport/Kconfig b/drivers/parport/Kconfig
index 70694ce..a079b18 100644
--- a/drivers/parport/Kconfig
+++ b/drivers/parport/Kconfig
@@ -31,13 +31,17 @@ menuconfig PARPORT
 
 	  If unsure, say Y.
 
+config ARCH_MAY_HAVE_PC_PARPORT
+	bool
+	help
+	  Select this config option from the architecture Kconfig if
+	  the architecture may have PC parallel port hardware.
+
 if PARPORT
 
 config PARPORT_PC
 	tristate "PC-style hardware"
-	depends on (!SPARC64 || PCI) && !SPARC32 && !M32R && !FRV && !S390 && \
-		(!M68K || ISA) && !MN10300 && !AVR32 && !BLACKFIN && \
-		!XTENSA && !CRIS && !H8300
+	depends on ARCH_MAY_HAVE_PC_PARPORT
 
 	---help---
 	  You should say Y here if you have a PC-style parallel port. All
-- 
1.8.3.1




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From: Ingo Molnar <mingo@kernel.org>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uclinux.microblaze,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha
Subject: Re: [PATCH v2 14/14] Kconfig cleanup (PARPORT_PC dependencies)
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 Paul Mackerras <paulus@samba.org>, "H. Peter Anvin" <hpa@zytor.com>,
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To: Mark Salter <msalter@redhat.com>
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* Mark Salter <msalter@redhat.com> wrote:

> Remove messy dependencies from PARPORT_PC by having it depend on one
> Kconfig symbol (ARCH_MAY_HAVE_PC_PARPORT) and having architectures
> which need it, select ARCH_MAY_HAVE_PC_PARPORT in arch/*/Kconfig.
> New architectures are unlikely to need PARPORT_PC, so this avoids
> having an ever growing list of architectures to exclude. Those
> architectures which do select ARCH_MAY_HAVE_PC_PARPORT in this
> patch are the ones which have an asm/parport.h (or use the generic
> version).
> 
> Signed-off-by: Mark Salter <msalter@redhat.com>
> CC: Richard Henderson <rth@twiddle.net>
> CC: linux-alpha@vger.kernel.org
> CC: Vineet Gupta <vgupta@synopsys.com>
> CC: Russell King <linux@arm.linux.org.uk>
> CC: linux-arm-kernel@lists.infradead.org
> CC: Tony Luck <tony.luck@intel.com>
> CC: Fenghua Yu <fenghua.yu@intel.com>
> CC: linux-ia64@vger.kernel.org
> CC: Geert Uytterhoeven <geert@linux-m68k.org>
> CC: linux-m68k@lists.linux-m68k.org
> CC: Michal Simek <monstr@monstr.eu>
> CC: microblaze-uclinux@itee.uq.edu.au
> CC: Ralf Baechle <ralf@linux-mips.org>
> CC: linux-mips@linux-mips.org
> CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
> CC: Helge Deller <deller@gmx.de>
> CC: linux-parisc@vger.kernel.org
> CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> CC: Paul Mackerras <paulus@samba.org>
> CC: linuxppc-dev@lists.ozlabs.org
> CC: Paul Mundt <lethal@linux-sh.org>
> CC: linux-sh@vger.kernel.org
> CC: "David S. Miller" <davem@davemloft.net>
> CC: sparclinux@vger.kernel.org
> CC: Guan Xuetao <gxt@mprc.pku.edu.cn>
> CC: Thomas Gleixner <tglx@linutronix.de>
> CC: Ingo Molnar <mingo@redhat.com>
> CC: "H. Peter Anvin" <hpa@zytor.com>
> CC: x86@kernel.org
> ---
>  drivers/parport/Kconfig | 10 +++++++---
>  1 file changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/parport/Kconfig b/drivers/parport/Kconfig
> index 70694ce..a079b18 100644
> --- a/drivers/parport/Kconfig
> +++ b/drivers/parport/Kconfig
> @@ -31,13 +31,17 @@ menuconfig PARPORT
>  
>  	  If unsure, say Y.
>  
> +config ARCH_MAY_HAVE_PC_PARPORT
> +	bool
> +	help
> +	  Select this config option from the architecture Kconfig if
> +	  the architecture may have PC parallel port hardware.
> +
>  if PARPORT
>  
>  config PARPORT_PC
>  	tristate "PC-style hardware"
> -	depends on (!SPARC64 || PCI) && !SPARC32 && !M32R && !FRV && !S390 && \
> -		(!M68K || ISA) && !MN10300 && !AVR32 && !BLACKFIN && \
> -		!XTENSA && !CRIS && !H8300
> +	depends on ARCH_MAY_HAVE_PC_PARPORT
>  
>  	---help---
>  	  You should say Y here if you have a PC-style parallel port. All

Since it's not a permission to have a parallel port but a possibility,
I suspect the whole series needs a:

  s/MAY_HAVE/MIGHT_HAVE
  s/may have/might have

Otherwise:

  Acked-by: Ingo Molnar <mingo@kernel.org>

Thanks,

	Ingo

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From: Ralf Baechle <ralf@linux-mips.org>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.m68k,gmane.linux.uclinux.microblaze,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH v2 14/14] Kconfig cleanup (PARPORT_PC dependencies)
Date: Tue, 8 Oct 2013 09:00:54 +0200
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Cc: linux-kernel@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
	linux-alpha@vger.kernel.org, Vineet Gupta <vgupta@synopsys.com>,
	Russell King <linux@arm.linux.org.uk>,
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	sparclinux@vger.kernel.org, Guan Xuetao <gxt@mprc.pku.edu.cn>,
	Thomas Gleixner <tgl
To: Mark Salter <msalter@redhat.com>
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On Tue, Oct 08, 2013 at 01:10:30AM -0400, Mark Salter wrote:

> Remove messy dependencies from PARPORT_PC by having it depend on one
> Kconfig symbol (ARCH_MAY_HAVE_PC_PARPORT) and having architectures
> which need it, select ARCH_MAY_HAVE_PC_PARPORT in arch/*/Kconfig.
> New architectures are unlikely to need PARPORT_PC, so this avoids
> having an ever growing list of architectures to exclude. Those
> architectures which do select ARCH_MAY_HAVE_PC_PARPORT in this
> patch are the ones which have an asm/parport.h (or use the generic
> version).

Acked-by: Ralf Baechle <ralf@linux-mips.org>

  Ralf
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From - Thu Nov 08 21:09:44 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: New hppa kernel packages uploaded (3.10.11, aka 3.10-3) to parisc archives
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Cc: HPPA porters <debian-hppa@lists.debian.org>
To: Parisc List <linux-parisc@vger.kernel.org>
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I have upload a new Debian kernel build (3.10.11) to the parisc archive:
deb http://ftp.parisc-linux.org/debian-ports/unstable  unstable main

Except for linux-image-3.10-3-parisc-smp, the packages have been boot
tested on c3750 and rp3440.

Enjoy,
Dave
--
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Hi all,

I've uploaded a new palo version 1.92 to the debian archive at 
parisc-linux.org which is able to handle kernel command line
lengths of up to a total of 1024 bytes.
This should resolve some problems if you e.g. want to provide the
UUID of hard disks on the kernel command line.

Please let me know if you see any problems.

A precompiled version is here:
http://www.parisc-linux.org/~deller/palo_1.92_hppa.deb

And the source is currently in the "cmdline" branch of
http://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/
and will be merged into the master branch during the next few days.

Helge
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: let probe_kernel_read() capture access to page zero
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index ac4370b..b5507ec 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -56,7 +56,7 @@
 #ifdef __KERNEL__
 #include <linux/module.h>
 #include <linux/compiler.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #define s_space "%%sr1"
 #define d_space "%%sr2"
 #else
@@ -524,4 +524,17 @@ EXPORT_SYMBOL(copy_to_user);
 EXPORT_SYMBOL(copy_from_user);
 EXPORT_SYMBOL(copy_in_user);
 EXPORT_SYMBOL(memcpy);
+
+long probe_kernel_read(void *dst, const void *src, size_t size)
+{
+	unsigned long addr = (unsigned long)src;
+
+	if (size < 0 || addr < PAGE_SIZE)
+		return -EFAULT;
+
+	/* check for I/O space F_EXTEND(0xfff00000) access as well? */
+
+	return __probe_kernel_read(dst, src, size);
+}
+
 #endif
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: call set_irq_regs() after disabling local irqs
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 2e6443b..c439c05 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -529,8 +529,8 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	cpumask_t dest;
 #endif
 
-	old_regs = set_irq_regs(regs);
 	local_irq_disable();
+	old_regs = set_irq_regs(regs);
 	irq_enter();
 
 	eirr_val = mfctl(23) & cpu_eiem & per_cpu(local_ack_eiem, cpu);
--
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Subject: [PATCH] parisc: remove unused syscall_ipi() function.
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 04e47c6..ebc877c 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -291,11 +291,6 @@ void die_if_kernel(char *str, struct pt_regs *regs, long err)
 	do_exit(SIGSEGV);
 }
 
-int syscall_ipi(int (*syscall) (struct pt_regs *), struct pt_regs *regs)
-{
-	return syscall(regs);
-}

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Subject: [PATCH] parisc: optimize timer_interrupt() function
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Optimize the timer interrupt function to avoid timer_interrupt
delayed/SLOW messages:
- always do the "cheap" math, it's much faster.
- avoid calling mtctl() twice if we want to skip one clocktick
- do the house keeping (update counters) before we printk() some
  warnings

Overall those changes reduced the amount of timer_interrupt kernel
warnings a lot for me.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 70e105d..5a16c12 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -77,7 +77,7 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	cycles_elapsed = now - next_tick;
 
-	if ((cycles_elapsed >> 6) < cpt) {
+	if (1 || (cycles_elapsed >> 6) < cpt) {
 		/* use "cheap" math (add/subtract) instead
 		 * of the more expensive div/mul method
 		 */
@@ -105,10 +105,8 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	/* Program the IT when to deliver the next interrupt.
 	 * Only bottom 32-bits of next_tick are writable in CR16!
-	 */
-	mtctl(next_tick, 16);
-
-	/* Skip one clocktick on purpose if we missed next_tick.
+	 *
+	 * Skip one clocktick on purpose if we missed next_tick.
 	 * The new CR16 must be "later" than current CR16 otherwise
 	 * itimer would not fire until CR16 wrapped - e.g 4 seconds
 	 * later on a 1Ghz processor. We'll account for the missed
@@ -121,6 +119,20 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 	now2 = mfctl(16);
 	if (next_tick - now2 > cpt)
 		mtctl(next_tick+cpt, 16);
+	else
+		mtctl(next_tick, 16);
+
+	/* Done mucking with unreliable delivery of interrupts.
+	 * Go do system house keeping.
+	 */
+
+	if (!--cpuinfo->prof_counter) {
+		cpuinfo->prof_counter = cpuinfo->prof_multiplier;
+		update_process_times(user_mode(get_irq_regs()));
+	}
+
+	if (cpu == 0)
+		xtime_update(ticks_elapsed);
 
 #if 1
 /*
@@ -154,18 +166,6 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 			next_tick, now );
 	}
 
-	/* Done mucking with unreliable delivery of interrupts.
-	 * Go do system house keeping.
-	 */
-
-	if (!--cpuinfo->prof_counter) {
-		cpuinfo->prof_counter = cpuinfo->prof_multiplier;
-		update_process_times(user_mode(get_irq_regs()));
-	}
-
-	if (cpu == 0)
-		xtime_update(ticks_elapsed);

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Subject: Re: [PATCH] parisc: call set_irq_regs() after disabling local irqs
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On Wed, 2013-10-09 at 23:54 +0200, Helge Deller wrote:
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
> index 2e6443b..c439c05 100644
> --- a/arch/parisc/kernel/irq.c
> +++ b/arch/parisc/kernel/irq.c
> @@ -529,8 +529,8 @@ void do_cpu_irq_mask(struct pt_regs *regs)
>  	cpumask_t dest;
>  #endif
>  
> -	old_regs = set_irq_regs(regs);
>  	local_irq_disable();
> +	old_regs = set_irq_regs(regs);

I don't quite understand why.  set_irq_regs is just saving the current
regs pointer.  The design intent is to call it first thing in the
interrupt routine but because of the way we use them, it makes no
difference whether you do it before or after disabling interrupts
because it's stacked.  What was the reason for wanting to change it to a
non-standard calling pattern?

James


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From - Thu Nov 08 21:09:44 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: call set_irq_regs() after disabling local irqs
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Hi James,

On 10/10/2013 04:17 AM, James Bottomley wrote:
> On Wed, 2013-10-09 at 23:54 +0200, Helge Deller wrote:
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
>> index 2e6443b..c439c05 100644
>> --- a/arch/parisc/kernel/irq.c
>> +++ b/arch/parisc/kernel/irq.c
>> @@ -529,8 +529,8 @@ void do_cpu_irq_mask(struct pt_regs *regs)
>>  	cpumask_t dest;
>>  #endif
>>  
>> -	old_regs = set_irq_regs(regs);
>>  	local_irq_disable();
>> +	old_regs = set_irq_regs(regs);
> 
> I don't quite understand why.  set_irq_regs is just saving the current
> regs pointer.

...and setting a new one...

> The design intent is to call it first thing in the
> interrupt routine but because of the way we use them, it makes no
> difference whether you do it before or after disabling interrupts
> because it's stacked.  What was the reason for wanting to change it to a
> non-standard calling pattern?

Is it really non-standard?

My first intention was to align the set_irq_regs() and entrance and exit 
to the irq_enter() and irq_exit() functions.
With my change above it's now:
	
	old_regs = set_irq_regs(regs);
	irq_enter();
	do_something...();
	irq_exit();
	set_irq_regs(old_regs);

That's the same syntax as all other arches use.

I think the main question is, if we need local_irq_disable() at all?
At least moving the "old_regs = set_irq_regs(regs);" down after local_irq_disable()
ensures that nobody else modifies the irq_regs pointer before we save it into old_regs.

Helge

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From - Thu Nov 08 21:09:44 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] parisc: call set_irq_regs() after disabling local irqs
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I believe do_cpu_irq_mask is called with interrupts disabled (virt_map 
sets PSW to KERNEL_PSW).
So, the local_irq_disable(); line can go.

It does look like set_irq_regs has to be atomic on a per cpu basis.  So, 
if interrupts weren't already
disabled, there would be a problem with current code.

Dave

On 10/10/2013 4:32 AM, Helge Deller wrote:
> Hi James,
>
> On 10/10/2013 04:17 AM, James Bottomley wrote:
>> On Wed, 2013-10-09 at 23:54 +0200, Helge Deller wrote:
>>> Signed-off-by: Helge Deller <deller@gmx.de>
>>>
>>> diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
>>> index 2e6443b..c439c05 100644
>>> --- a/arch/parisc/kernel/irq.c
>>> +++ b/arch/parisc/kernel/irq.c
>>> @@ -529,8 +529,8 @@ void do_cpu_irq_mask(struct pt_regs *regs)
>>>   	cpumask_t dest;
>>>   #endif
>>>   
>>> -	old_regs = set_irq_regs(regs);
>>>   	local_irq_disable();
>>> +	old_regs = set_irq_regs(regs);
>> I don't quite understand why.  set_irq_regs is just saving the current
>> regs pointer.
> ...and setting a new one...
>
>> The design intent is to call it first thing in the
>> interrupt routine but because of the way we use them, it makes no
>> difference whether you do it before or after disabling interrupts
>> because it's stacked.  What was the reason for wanting to change it to a
>> non-standard calling pattern?
> Is it really non-standard?
>
> My first intention was to align the set_irq_regs() and entrance and exit
> to the irq_enter() and irq_exit() functions.
> With my change above it's now:
> 	
> 	old_regs = set_irq_regs(regs);
> 	irq_enter();
> 	do_something...();
> 	irq_exit();
> 	set_irq_regs(old_regs);
>
> That's the same syntax as all other arches use.
>
> I think the main question is, if we need local_irq_disable() at all?
> At least moving the "old_regs = set_irq_regs(regs);" down after local_irq_disable()
> ensures that nobody else modifies the irq_regs pointer before we save it into old_regs.
>
> Helge
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
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>
>


-- 
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On Thu, 2013-10-10 at 10:32 +0200, Helge Deller wrote:
> Hi James,
> 
> On 10/10/2013 04:17 AM, James Bottomley wrote:
> > On Wed, 2013-10-09 at 23:54 +0200, Helge Deller wrote:
> >> Signed-off-by: Helge Deller <deller@gmx.de>
> >>
> >> diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
> >> index 2e6443b..c439c05 100644
> >> --- a/arch/parisc/kernel/irq.c
> >> +++ b/arch/parisc/kernel/irq.c
> >> @@ -529,8 +529,8 @@ void do_cpu_irq_mask(struct pt_regs *regs)
> >>  	cpumask_t dest;
> >>  #endif
> >>  
> >> -	old_regs = set_irq_regs(regs);
> >>  	local_irq_disable();
> >> +	old_regs = set_irq_regs(regs);
> > 
> > I don't quite understand why.  set_irq_regs is just saving the current
> > regs pointer.
> 
> ...and setting a new one...
> 
> > The design intent is to call it first thing in the
> > interrupt routine but because of the way we use them, it makes no
> > difference whether you do it before or after disabling interrupts
> > because it's stacked.  What was the reason for wanting to change it to a
> > non-standard calling pattern?
> 
> Is it really non-standard?

Well, yes, x86 which is canonical tends to execute it immediately.

> My first intention was to align the set_irq_regs() and entrance and exit 
> to the irq_enter() and irq_exit() functions.
> With my change above it's now:
> 	
> 	old_regs = set_irq_regs(regs);
> 	irq_enter();
> 	do_something...();
> 	irq_exit();
> 	set_irq_regs(old_regs);
> 
> That's the same syntax as all other arches use.

I honestly don't think it matters, but x86 does

irq_ack
irq_enter
old_regs = set_irq_regs(regs);
...

if you look in their apic code.

> I think the main question is, if we need local_irq_disable() at all?

The generic irq handler seems to expect it, so it looks like yes at the
moment.  I think the current pattern is that we call with disabled but
the routine can re-enable. 

> At least moving the "old_regs = set_irq_regs(regs);" down after
> local_irq_disable()
> ensures that nobody else modifies the irq_regs pointer before we save
> it into old_regs.

Um, they can't.  The regs pointer points to an on-stack saved area that
was pushed when the interrupt was taken ... even if we get a nested
interrupt, it will push a new stack frame and we'll still be back to
this particular regs pointer when it returns.

James


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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc updates for v3.12-rc5
Date: Sun, 13 Oct 2013 18:11:30 +0200
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi Linus,

Please pull the latest parisc fixes from

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.12

This patchset includes a bugfix to prevent a kernel crash when memory in
page zero is accessed by the kernel itself, e.g. via
probe_kernel_read(). Furthermore we now export flush_cache_page() which
is needed (indirectly) by the lustre filesystem.  The other patches
remove unused functions and optimizes the page fault handler to only
evaluate variables if needed, which again protects against possible
kernel crashes.

Thanks,
Helge

----------------------------------------------------------------
Geert Uytterhoeven (1):
      parisc: Export flush_cache_page() (needed by lustre)

Helge Deller (4):
      parisc: remove unused syscall_ipi() function.
      parisc: mark parisc_terminate() noreturn and cold.
      parisc: fix interruption handler to respect pagefault_disable()
      parisc: let probe_kernel_read() capture access to page zero

Jiang Liu (1):
      parisc: kill SMP single function call interrupt

John David Anglin (1):
      parisc: optimize variable initialization in do_page_fault

 arch/parisc/include/asm/traps.h |  2 +-
 arch/parisc/kernel/cache.c      |  1 +
 arch/parisc/kernel/smp.c        |  8 +-------
 arch/parisc/kernel/traps.c      | 11 +++--------
 arch/parisc/lib/memcpy.c        | 15 ++++++++++++++-
 arch/parisc/mm/fault.c          | 15 ++++++++++-----
 6 files changed, 30 insertions(+), 22 deletions(-)

From - Thu Nov 08 21:09:45 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: New hppa kernel packages uploaded (3.10.11, aka 3.10-3) to parisc archives
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Cc: Parisc List <linux-parisc@vger.kernel.org>
To: Dave Land <xmechanic@landcomp.net>
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To get devtmpfs you need a kernel built with CONFIG_DEVTMPFS.  I think  
the Debian kernels in the archive
have this.  However, at least some of the default parisc kernel  
configs miss this option.

What has changed is udev.  Previously, it didn't require devtempfs  
support.  Annoying, I know.

Do you want me to send udev deb for last version that worked without  
devtmpfs?

This isn't drive order issue.  I wrote a warning about this to list.   
It shouldn't be update until you have kernels
built with CONFIG_DEVTMPFS.

CC'd list.

Dave

On 13-Oct-13, at 12:41 PM, Dave Land wrote:

> OK, here's the latest on the J6750...
>
> I deleted all the partitions and started from scratch. When I did  
> the mke2fs to format I included the 'L' option to set a label for  
> sda3 (mke2fs -L ROOTscsi0), and followed the instructions for  
> setting the /boot partition in fstab, etc., after I got all the  
> packages downloaded again. Now when I reboot from the CD and  
> interact with the IPL to set root=/dev/sda3, it boots the HDD and  
> then errors out with the following:
> [FAIL] udev requires devtempfs support, not started ... failed
> [WARN] Filesystem mounted on /dev/shm; setting up compatibility bind  
> mount ... (warning)
>
> Do I need to set something in /etc/fstab or init.d to get devtmpfs  
> to start or what?
>
> Since that happened, I pulled the secondary HDD out to avoid the  
> drive order issue, and re-partitioned once again, and formatted my  
> file systems with just the stock options (mke2fs /dev/sda2; mke2fs / 
> dev/sda3; mkswap /dev/sda4), download everything AGAIN, set the / 
> boot parameters in /etc/fstab, set my root p/w, and rebooted. Once  
> again, set root=/dev/sda3 in the IPL list, and it booted the HDD and  
> errored out again with the failed udev. Has something changed in the  
> repository?
> Did it not get rid of the disk label when I re-partitioned/formatted?
> This is driving me crazy!
>
> Dave Land
>
> On 10/11/13 6:26 AM, John David Anglin wrote:
>> Dave,
>>
>> Finding the root is a different issue.  When you have multiple hard
>> drives, the drive detection order can vary.  I have a USB drive on  
>> one
>> machine
>> and the drive detection order varies depending on whether it is  
>> plugged
>> in or not.  For some reason, it always comes up as sda!  The order  
>> can
>> also change with different kernel versions.
>>
>> So, specifying root=/dev/sda3 in the palo.conf is problematic.  It's
>> better to use root=UUID=drive_uuid or root=LABEL=drive_label.  The  
>> label
>> option is shorter.  I labeled my root partition "ROOTn" where n is a
>> drive number (e.g., SCSI ID).  I think this only works when you use  
>> udev to
>> build /dev.  If /dev is fixed, then this doesn't matter.
>>
>> This is why Helge recently changed palo to allow longer command  
>> lines.
>>
>> Dave
>>
>> On 11-Oct-13, at 1:31 AM, Dave Land wrote:
>>
>>> Dave,
>>>
>>> If I remember correctly (it's been a couple weeks), the kernel panic
>>> mentioned that it couldn't find the root partition, in this case  
>>> sda3,
>>> and I specified that when I did the palo config, so I either screwed
>>> up on the partitioning (i.e. sda3 isn't where it's supposed to be,  
>>> or
>>> I didn't do the palo config just exactly right.) If I interact with
>>> the IPL and use the kernel on the CD, it finds sda3 with no problem
>>> and boots the hard disc. I'm thinking it actually IS finding the
>>> kernel, since it actually gets that far before the kernel panics
>>> because it can't find /.
>>>
>>> Anyway, as soon as I get caught up with sorting all the computer
>>> goodies I scored at the local school auction last week, I'll work  
>>> with
>>> it some more, and try to figure out what I'm missing. :)
>>>
>>> Dave Land
>>> Land Computer Service
>>>
>>> On 10/10/13 6:01 PM, John David Anglin wrote:
>>>> Typically, I don't change palo.conf much.  Just use a generic  
>>>> name like
>>>> vmlinux and link it to your current
>>>> default kernel.  Same for initrd.img if you use ram disk.   
>>>> Interact with
>>>> IPL if you want to do something special.
>>>> It supports a ls command, so you can see what's in /boot.  If you  
>>>> can't
>>>> see any kernels, palo is probably
>>>> looking at wrong partition.
>>>>
>>>> Dave
>>>>
>>>> On 10-Oct-13, at 9:47 AM, Dave Land wrote:
>>>>
>>>>> On 10/8/13 5:41 PM, John David Anglin wrote:
>>>>>> I have upload a new Debian kernel build (3.10.11) to the parisc
>>>>>> archive:
>>>>>> deb http://ftp.parisc-linux.org/debian-ports/unstable  unstable  
>>>>>> main
>>>>>>
>>>>>> Except for linux-image-3.10-3-parisc-smp, the packages have  
>>>>>> been boot
>>>>>> tested on c3750 and rp3440.
>>>>>>
>>>>>> Enjoy,
>>>>>> Dave
>>>>>> --
>>>>>> John David Anglin    dave.anglin@bell.net
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>> Thank you Dave. I'm still trying to get my Visualize J6750 to boot
>>>>> from the kernel on the HDD. Some kind of weirdness with palo is
>>>>> keeping it from seeing the /boot partition. Too much other stuff  
>>>>> going
>>>>> on at the moment to worry with it too much though. I'll get it
>>>>> eventually. :) Thanks for all your hard work on this.
>>>>>
>>>>> --
>>>>> Dave Land
>>>>> Land Computer Service  xmechanic@landcomp.net
>

--
John David Anglin	dave.anglin@bell.net



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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: provide macro to create exception table entries
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Provide a macro ASM_EXCEPTIONTABLE_ENTRY() to create exception table
entries and convert all open-coded places to use that macro.

This patch is a first step toward creating a exception table which only
holds 32bit pointers even on a 64bit kernel. That way in my own kernel
I was able to reduce the in-kernel exception table from 44kB to 22kB.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/assembly.h b/arch/parisc/include/asm/assembly.h
index 0da8482..b3069fd 100644
--- a/arch/parisc/include/asm/assembly.h
+++ b/arch/parisc/include/asm/assembly.h
@@ -515,5 +515,17 @@
 	nop	/* 7 */
 	.endm
 
+	/*
+	 * ASM_EXCEPTIONTABLE_ENTRY
+	 *
+	 * Creates an exception table entry.
+	 * Do not convert to a assembler macro. This won't work.
+	 */
+#define ASM_EXCEPTIONTABLE_ENTRY(fault_addr, except_addr)	\
+	.section __ex_table,"aw"			!	\
+	ASM_ULONG_INSN	fault_addr, except_addr		!	\
+	.previous
+
+
 #endif /* __ASSEMBLY__ */
 #endif
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index e0a8235..4006964 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -59,12 +59,13 @@ static inline long access_ok(int type, const void __user * addr,
 /*
  * The exception table contains two values: the first is an address
  * for an instruction that is allowed to fault, and the second is
- * the address to the fixup routine. 
+ * the address to the fixup routine. Even on a 64bit kernel we could
+ * use a 32bit (unsigned int) address here.
  */
 
 struct exception_table_entry {
-	unsigned long insn;  /* address of insn that is allowed to fault.   */
-	long fixup;          /* fixup routine */
+	unsigned long insn;	/* address of insn that is allowed to fault. */
+	unsigned long fixup;	/* fixup routine */
 };
 
 #define ASM_EXCEPTIONTABLE_ENTRY( fault_addr, except_addr )\
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index e767ab7..a63bb179 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -649,10 +649,8 @@ cas_action:
 	/* Two exception table entries, one for the load,
 	   the other for the store. Either return -EFAULT.
 	   Each of the entries must be relocated. */
-	.section __ex_table,"aw"
-	ASM_ULONG_INSN (1b - linux_gateway_page), (3b - linux_gateway_page)
-	ASM_ULONG_INSN (2b - linux_gateway_page), (3b - linux_gateway_page)
-	.previous
+	ASM_EXCEPTIONTABLE_ENTRY(1b-linux_gateway_page, 3b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(2b-linux_gateway_page, 3b-linux_gateway_page)
 
 
 	/* Make sure nothing else is placed on this page */
diff --git a/arch/parisc/lib/lusercopy.S b/arch/parisc/lib/lusercopy.S
index 6f2d935..a512f07 100644
--- a/arch/parisc/lib/lusercopy.S
+++ b/arch/parisc/lib/lusercopy.S
@@ -88,9 +88,7 @@ ENDPROC(lclear_user)
 	ldo        1(%r25),%r25
 	.previous
 
-	.section __ex_table,"aw"
-	ASM_ULONG_INSN 1b,2b
-	.previous
+	ASM_EXCEPTIONTABLE_ENTRY(1b,2b)
 
 	.procend
 
@@ -129,10 +127,8 @@ ENDPROC(lstrnlen_user)
 	copy        %r24,%r26    /* reset r26 so 0 is returned on fault */
 	.previous
 
-	.section __ex_table,"aw"
-	ASM_ULONG_INSN 1b,3b
-	ASM_ULONG_INSN 2b,3b
-	.previous
+	ASM_EXCEPTIONTABLE_ENTRY(1b,3b)
+	ASM_EXCEPTIONTABLE_ENTRY(2b,3b)
 
 	.procend
 
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 0293588..d7aea72 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -142,6 +142,11 @@ int fixup_exception(struct pt_regs *regs)
 {
 	const struct exception_table_entry *fix;
 
+	/* If we only stored 32bit addresses in the exception table we can drop
+	 * out if we faulted on a 64bit address. */
+	if (sizeof(fix->insn) == 4 && regs->iaoq[0] >> 32)
+		return 0;
+
 	fix = search_exception_tables(regs->iaoq[0]);
 	if (fix) {
 		struct exception_data *d;
--
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Improve output when using sysrq-l command (show backtrace for all cpus).

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/irq.h b/arch/parisc/include/asm/irq.h
index 1073599..99989ad 100644
--- a/arch/parisc/include/asm/irq.h
+++ b/arch/parisc/include/asm/irq.h
@@ -49,4 +49,9 @@ extern int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest);
 /* soft power switch support (power.c) */
 extern struct tasklet_struct power_tasklet;
 
+#ifdef CONFIG_SMP
+void arch_trigger_all_cpu_backtrace(void);
+#define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace
+#endif
+
 #endif	/* _ASM_PARISC_IRQ_H */
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 2e6443b..2e66892 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -615,3 +615,44 @@ void __init init_IRQ(void)
 #endif
         set_eiem(cpu_eiem);	/* EIEM : enable all external intr */
 }
+
+
+
+/*
+ * Backtrace of all CPUs via IPI. Used when sending sysrq-l.  
+ */
+
+#ifdef arch_trigger_all_cpu_backtrace
+static DECLARE_BITMAP(backtrace_mask, NR_CPUS) __read_mostly;
+
+static void smp_call_func_backtrace(void *info)
+{
+	int cpu;
+	cpu = smp_processor_id();
+
+	if (cpumask_test_cpu(cpu, to_cpumask(backtrace_mask))) {
+		static arch_spinlock_t lock = __ARCH_SPIN_LOCK_UNLOCKED;
+
+		arch_spin_lock(&lock);
+		pr_warn("IPI backtrace for cpu %d\n", cpu);
+		/* show_regs(get_irq_regs()); */
+		show_stack(NULL, 0);
+		arch_spin_unlock(&lock);
+		cpumask_clear_cpu(cpu, to_cpumask(backtrace_mask));
+	}
+}
+
+void arch_trigger_all_cpu_backtrace(void)
+{
+	unsigned long flags;
+
+	cpumask_copy(to_cpumask(backtrace_mask), cpu_online_mask);
+
+	pr_info("sending IPI to all CPUs:\n");
+	local_irq_save(flags);
+	local_irq_enable();
+	on_each_cpu(smp_call_func_backtrace, NULL, 0);
+	local_irq_restore(flags);
+}
+#endif
+
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From: Helge Deller <deller@gmx.de>
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Subject: Re: New hppa kernel packages uploaded (3.10.11, aka 3.10-3) to parisc
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Hi Dave,

On 10/13/2013 06:59 PM, John David Anglin wrote:
> To get devtmpfs you need a kernel built with CONFIG_DEVTMPFS.  I think the Debian kernels in the archive
> have this.  However, at least some of the default parisc kernel configs miss this option.

You are correct.
I just tested shortly the 712_defconfig and c3000_defconfigs, and both are missing CONFIG_DEVTMPFS.

What about DEVTMPFS_MOUNT? Is it needed as well? 
(Automount devtmpfs at /dev, after the kernel mounted the rootfs (DEVTMPFS_MOUNT) [N/y/?] (NEW))

I think it makes sense to update the defconfigs.
What else do you know might be missing?

Helge
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Am Sonntag, 13. Oktober 2013, 21:52:50 schrieb Helge Deller:
> Hi Dave,
> 
> On 10/13/2013 06:59 PM, John David Anglin wrote:
> > To get devtmpfs you need a kernel built with CONFIG_DEVTMPFS.  I think the
> > Debian kernels in the archive have this.  However, at least some of the
> > default parisc kernel configs miss this option.
> You are correct.
> I just tested shortly the 712_defconfig and c3000_defconfigs, and both are
> missing CONFIG_DEVTMPFS.
> 
> What about DEVTMPFS_MOUNT? Is it needed as well?
> (Automount devtmpfs at /dev, after the kernel mounted the rootfs
> (DEVTMPFS_MOUNT) [N/y/?] (NEW))

This only has an effect if no initrd is used. But it would help for the case it 
is not, and has no bad effect in case an initrd is used, so both should be 
switched on.

Eike
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Subject: Re: [GIT PULL] parisc updates for v3.12-rc5
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> Geert Uytterhoeven (1):
>       parisc: Export flush_cache_page() (needed by lustre)

This one shouldn't go in - Geert sent it a bit prematurely, as Lustre
shouldn't use it just to reimplement core VM functionality (which it
shouldn't use either, but that's a separate story).

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> > Geert Uytterhoeven (1):
> >       parisc: Export flush_cache_page() (needed by lustre)
> 
> This one shouldn't go in - Geert sent it a bit prematurely, as Lustre
> shouldn't use it just to reimplement core VM functionality (which it
> shouldn't use either, but that's a separate story).

Ok, it's my fault then.
I'll include a reverting patch in the next parisc pull request...

Thanks,
Helge
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Break SOCK_NONBLOCK out to its own asm-file as other arches do. This
fixes build errors with auditd and probably other packages.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h
new file mode 100644
index 0000000..8d806d8
--- /dev/null
+++ b/arch/parisc/include/asm/socket.h
@@ -0,0 +1,10 @@
+#ifndef _ASM_SOCKET_H
+#define _ASM_SOCKET_H
+
+#include <uapi/asm/socket.h>
+
+/* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
+ * have to define SOCK_NONBLOCK to a different value here.
+ */
+#define SOCK_NONBLOCK	0x40000000
+#endif /* _ASM_SOCKET_H */
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index 71700e6..9f2174f 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -1,5 +1,5 @@
-#ifndef _ASM_SOCKET_H
-#define _ASM_SOCKET_H
+#ifndef _UAPI_ASM_SOCKET_H
+#define _UAPI_ASM_SOCKET_H
 
 #include <asm/sockios.h>
 
@@ -75,9 +75,4 @@
 
 #define SO_BUSY_POLL		0x4027
 
-/* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
- * have to define SOCK_NONBLOCK to a different value here.
- */
-#define SOCK_NONBLOCK   0x40000000

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: add kernel auditing feature
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Still untested as additional work - which is ongoing - is needed in the
upstream auditd tool.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index ad2ce8d..73e0ac2 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -287,6 +287,10 @@ config SYSVIPC_COMPAT
 	def_bool y
 	depends on COMPAT && SYSVIPC
 
+config AUDIT_ARCH
+	def_bool y
+	depends on COMPAT
+
 config HPUX
 	bool "Support for HP-UX binaries"
 	depends on !64BIT
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 540c88f..bc7cf12 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -59,6 +59,7 @@ struct thread_info {
 #define TIF_32BIT               4       /* 32 bit binary */
 #define TIF_MEMDIE		5	/* is terminating due to OOM killer */
 #define TIF_RESTORE_SIGMASK	6	/* restore saved signal mask */
+#define TIF_SYSCALL_AUDIT	7	/* syscall auditing active */
 #define TIF_NOTIFY_RESUME	8	/* callback before returning to user */
 #define TIF_SINGLESTEP		9	/* single stepping? */
 #define TIF_BLOCKSTEP		10	/* branch stepping? */
@@ -68,6 +69,7 @@ struct thread_info {
 #define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
 #define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
 #define _TIF_32BIT		(1 << TIF_32BIT)
+#define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
 #define _TIF_SINGLESTEP		(1 << TIF_SINGLESTEP)
 #define _TIF_BLOCKSTEP		(1 << TIF_BLOCKSTEP)
@@ -75,7 +77,7 @@ struct thread_info {
 #define _TIF_USER_WORK_MASK     (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \
                                  _TIF_NEED_RESCHED)
 #define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP |	\
-				 _TIF_BLOCKSTEP)
+				 _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT)
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 66ee3f1..ad1e3a6 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -31,5 +31,6 @@ obj-$(CONFIG_64BIT)	+= binfmt_elf32.o sys_parisc32.o signal32.o
 obj-$(CONFIG_STACKTRACE)+= stacktrace.o
 # only supported for PCX-W/U in 64-bit mode at the moment
 obj-$(CONFIG_64BIT)	+= perf.o perf_asm.o
+obj-$(CONFIG_AUDIT_ARCH) += audit.o compat_audit.o
 obj-$(CONFIG_FUNCTION_TRACER)		+= ftrace.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)	+= ftrace.o
diff --git a/arch/parisc/kernel/audit.c b/arch/parisc/kernel/audit.c
new file mode 100644
index 0000000..bdc7773
--- /dev/null
+++ b/arch/parisc/kernel/audit.c
@@ -0,0 +1,81 @@
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/audit.h>
+#include <asm/unistd.h>
+
+static unsigned dir_class[] = {
+#include <asm-generic/audit_dir_write.h>
+~0U
+};
+
+static unsigned read_class[] = {
+#include <asm-generic/audit_read.h>
+~0U
+};
+
+static unsigned write_class[] = {
+#include <asm-generic/audit_write.h>
+~0U
+};
+
+static unsigned chattr_class[] = {
+#include <asm-generic/audit_change_attr.h>
+~0U
+};
+
+static unsigned signal_class[] = {
+#include <asm-generic/audit_signal.h>
+~0U
+};
+
+int audit_classify_arch(int arch)
+{
+#ifdef CONFIG_COMPAT
+	if (arch == AUDIT_ARCH_PARISC)
+		return 1;
+#endif
+	return 0;
+}
+
+int audit_classify_syscall(int abi, unsigned syscall)
+{
+#ifdef CONFIG_COMPAT
+	extern int parisc32_classify_syscall(unsigned);
+	if (abi == AUDIT_ARCH_PARISC)
+		return parisc32_classify_syscall(syscall);
+#endif
+	switch (syscall) {
+	case __NR_open:
+		return 2;
+	case __NR_openat:
+		return 3;
+	case __NR_execve:
+		return 5;
+	default:
+		return 0;
+	}
+}
+
+static int __init audit_classes_init(void)
+{
+#ifdef CONFIG_COMPAT
+	extern __u32 parisc32_dir_class[];
+	extern __u32 parisc32_write_class[];
+	extern __u32 parisc32_read_class[];
+	extern __u32 parisc32_chattr_class[];
+	extern __u32 parisc32_signal_class[];
+	audit_register_class(AUDIT_CLASS_WRITE_32, parisc32_write_class);
+	audit_register_class(AUDIT_CLASS_READ_32, parisc32_read_class);
+	audit_register_class(AUDIT_CLASS_DIR_WRITE_32, parisc32_dir_class);
+	audit_register_class(AUDIT_CLASS_CHATTR_32, parisc32_chattr_class);
+	audit_register_class(AUDIT_CLASS_SIGNAL_32, parisc32_signal_class);
+#endif
+	audit_register_class(AUDIT_CLASS_WRITE, write_class);
+	audit_register_class(AUDIT_CLASS_READ, read_class);
+	audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
+	audit_register_class(AUDIT_CLASS_CHATTR, chattr_class);
+	audit_register_class(AUDIT_CLASS_SIGNAL, signal_class);
+	return 0;
+}
+
+__initcall(audit_classes_init);
diff --git a/arch/parisc/kernel/compat_audit.c b/arch/parisc/kernel/compat_audit.c
new file mode 100644
index 0000000..ba64dfe
--- /dev/null
+++ b/arch/parisc/kernel/compat_audit.c
@@ -0,0 +1,40 @@
+#include <asm/unistd.h>
+
+unsigned int parisc32_dir_class[] = {
+#include <asm-generic/audit_dir_write.h>
+~0U
+};
+
+unsigned int parisc32_chattr_class[] = {
+#include <asm-generic/audit_change_attr.h>
+~0U
+};
+
+unsigned int parisc32_write_class[] = {
+#include <asm-generic/audit_write.h>
+~0U
+};
+
+unsigned int parisc32_read_class[] = {
+#include <asm-generic/audit_read.h>
+~0U
+};
+
+unsigned int parisc32_signal_class[] = {
+#include <asm-generic/audit_signal.h>
+~0U
+};
+
+int parisc32_classify_syscall(unsigned syscall)
+{
+	switch (syscall) {
+	case __NR_open:
+		return 2;
+	case __NR_openat:
+		return 3;
+	case __NR_execve:
+		return 5;
+	default:
+		return 1;
+	}
+}
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 534abd4..e842ee2 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -19,6 +19,7 @@
 #include <linux/security.h>
 #include <linux/compat.h>
 #include <linux/signal.h>
+#include <linux/audit.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -267,11 +268,28 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 
 long do_syscall_trace_enter(struct pt_regs *regs)
 {
+	long ret = 0;
+
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
 	    tracehook_report_syscall_entry(regs))
-		return -1L;
-
-	return regs->gr[20];
+		ret = -1L;
+
+#ifdef CONFIG_64BIT
+	if (!is_compat_task())
+		audit_syscall_entry(AUDIT_ARCH_PARISC64,
+			regs->gr[20],
+			regs->gr[26], regs->gr[25],
+			regs->gr[24], regs->gr[23]);
+	else
+#endif
+		audit_syscall_entry(AUDIT_ARCH_PARISC,
+			regs->gr[20] & 0xffffffff,
+			regs->gr[26] & 0xffffffff,
+			regs->gr[25] & 0xffffffff,
+			regs->gr[24] & 0xffffffff,
+			regs->gr[23] & 0xffffffff);
+
+	return ret ? : regs->gr[20];
 }
 
 void do_syscall_trace_exit(struct pt_regs *regs)
@@ -279,6 +297,8 @@ void do_syscall_trace_exit(struct pt_regs *regs)
 	int stepping = test_thread_flag(TIF_SINGLESTEP) ||
 		test_thread_flag(TIF_BLOCKSTEP);
 
+	audit_syscall_exit(regs);
+
 	if (stepping || test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, stepping);
 }
--
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From - Thu Nov 08 21:09:45 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: enable DEVTMPFS and DEVTMPFS_MOUNT in defconfigs
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Latest udev version requires that DEVTMPFS and DEVTMPFS_MOUNT are
enabled, else initrd will fail to find root filesystem.
While touching those configs, unify a few other options, e.g.
disable CONFIG_IP_PNP_DHCP and enable CONFIG_BLK_DEV_INITRD.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig
index 0f90569..39b680a 100644
--- a/arch/parisc/configs/712_defconfig
+++ b/arch/parisc/configs/712_defconfig
@@ -28,7 +28,6 @@ CONFIG_NET_KEY=m
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
@@ -40,6 +39,8 @@ CONFIG_IP_NF_QUEUE=m
 CONFIG_LLC2=m
 CONFIG_NET_PKTGEN=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 CONFIG_PARPORT=y
diff --git a/arch/parisc/configs/a500_defconfig b/arch/parisc/configs/a500_defconfig
index b647b18..51cc316 100644
--- a/arch/parisc/configs/a500_defconfig
+++ b/arch/parisc/configs/a500_defconfig
@@ -38,7 +38,6 @@ CONFIG_NET_KEY=m
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
@@ -79,6 +78,8 @@ CONFIG_IP_DCCP=m
 CONFIG_LLC2=m
 CONFIG_NET_PKTGEN=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 CONFIG_BLK_DEV_UMEM=m
diff --git a/arch/parisc/configs/b180_defconfig b/arch/parisc/configs/b180_defconfig
index e289f5b..f1a0c25 100644
--- a/arch/parisc/configs/b180_defconfig
+++ b/arch/parisc/configs/b180_defconfig
@@ -4,6 +4,7 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=16
 CONFIG_SYSFS_DEPRECATED_V2=y
+CONFIG_BLK_DEV_INITRD=y
 CONFIG_SLAB=y
 CONFIG_MODULES=y
 CONFIG_MODVERSIONS=y
@@ -27,6 +28,8 @@ CONFIG_IP_PNP_BOOTP=y
 # CONFIG_INET_LRO is not set
 CONFIG_IPV6=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 CONFIG_PARPORT=y
 CONFIG_PARPORT_PC=y
diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index 311ca36..ec1b014 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -5,6 +5,7 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=16
 CONFIG_SYSFS_DEPRECATED_V2=y
+CONFIG_BLK_DEV_INITRD=y
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_EXPERT=y
 CONFIG_KALLSYMS_ALL=y
@@ -39,6 +40,8 @@ CONFIG_NETFILTER_DEBUG=y
 CONFIG_IP_NF_QUEUE=m
 CONFIG_NET_PKTGEN=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 CONFIG_BLK_DEV_UMEM=m
diff --git a/arch/parisc/configs/c8000_defconfig b/arch/parisc/configs/c8000_defconfig
index f110063..6d3852f 100644
--- a/arch/parisc/configs/c8000_defconfig
+++ b/arch/parisc/configs/c8000_defconfig
@@ -42,9 +42,7 @@ CONFIG_NET_KEY=m
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
-CONFIG_IP_PNP_RARP=y
 CONFIG_NET_IPIP=m
 CONFIG_IP_MROUTE=y
 CONFIG_IP_PIMSM_V1=y
@@ -62,6 +60,8 @@ CONFIG_TIPC=m
 CONFIG_LLC2=m
 CONFIG_DNS_RESOLVER=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
 CONFIG_PARPORT=y
 CONFIG_PARPORT_PC=y
@@ -197,16 +197,12 @@ CONFIG_USB=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_STORAGE=y
 CONFIG_EXT2_FS=y
-CONFIG_EXT2_FS_XATTR=y
-CONFIG_EXT2_FS_POSIX_ACL=y
-CONFIG_EXT2_FS_SECURITY=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
 CONFIG_EXT4_FS=m
 CONFIG_REISERFS_FS=m
 CONFIG_REISERFS_PROC_INFO=y
 CONFIG_XFS_FS=m
-CONFIG_XFS_POSIX_ACL=y
 CONFIG_QUOTA=y
 CONFIG_QFMT_V1=m
 CONFIG_QFMT_V2=m
@@ -218,7 +214,6 @@ CONFIG_MSDOS_FS=m
 CONFIG_VFAT_FS=m
 CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y
-CONFIG_TMPFS_XATTR=y
 CONFIG_NFS_FS=m
 CONFIG_NLS_CODEPAGE_437=m
 CONFIG_NLS_CODEPAGE_737=m
diff --git a/arch/parisc/configs/default_defconfig b/arch/parisc/configs/default_defconfig
index dfe88f6..697f409 100644
--- a/arch/parisc/configs/default_defconfig
+++ b/arch/parisc/configs/default_defconfig
@@ -37,7 +37,6 @@ CONFIG_NET_KEY=m
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
@@ -49,6 +48,8 @@ CONFIG_INET6_ESP=y
 CONFIG_INET6_IPCOMP=y
 CONFIG_LLC2=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 CONFIG_PARPORT=y
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From - Thu Nov 08 21:09:45 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: add kernel auditing feature
Date: Tue, 15 Oct 2013 19:25:46 +0200
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updated (functional) patch:

parisc: add kernel auditing feature (v2)

Add kernel auditing feature for parisc.

Changes to v1:
	- ptrace.h: added regs_return_value() function
	- init/Kconfig: enable CONFIG_AUDITSYSCALL for parisc
	  architecture in Kconfig

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index ad2ce8d..73e0ac2 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -287,6 +287,10 @@ config SYSVIPC_COMPAT
 	def_bool y
 	depends on COMPAT && SYSVIPC
 
+config AUDIT_ARCH
+	def_bool y
+	depends on COMPAT
+
 config HPUX
 	bool "Support for HP-UX binaries"
 	depends on !64BIT
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 540c88f..bc7cf12 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -59,6 +59,7 @@ struct thread_info {
 #define TIF_32BIT               4       /* 32 bit binary */
 #define TIF_MEMDIE		5	/* is terminating due to OOM killer */
 #define TIF_RESTORE_SIGMASK	6	/* restore saved signal mask */
+#define TIF_SYSCALL_AUDIT	7	/* syscall auditing active */
 #define TIF_NOTIFY_RESUME	8	/* callback before returning to user */
 #define TIF_SINGLESTEP		9	/* single stepping? */
 #define TIF_BLOCKSTEP		10	/* branch stepping? */
@@ -68,6 +69,7 @@ struct thread_info {
 #define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
 #define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
 #define _TIF_32BIT		(1 << TIF_32BIT)
+#define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
 #define _TIF_SINGLESTEP		(1 << TIF_SINGLESTEP)
 #define _TIF_BLOCKSTEP		(1 << TIF_BLOCKSTEP)
@@ -75,7 +77,7 @@ struct thread_info {
 #define _TIF_USER_WORK_MASK     (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \
                                  _TIF_NEED_RESCHED)
 #define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP |	\
-				 _TIF_BLOCKSTEP)
+				 _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT)
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 66ee3f1..ad1e3a6 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -31,5 +31,6 @@ obj-$(CONFIG_64BIT)	+= binfmt_elf32.o sys_parisc32.o signal32.o
 obj-$(CONFIG_STACKTRACE)+= stacktrace.o
 # only supported for PCX-W/U in 64-bit mode at the moment
 obj-$(CONFIG_64BIT)	+= perf.o perf_asm.o
+obj-$(CONFIG_AUDIT_ARCH) += audit.o compat_audit.o
 obj-$(CONFIG_FUNCTION_TRACER)		+= ftrace.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)	+= ftrace.o
diff --git a/arch/parisc/kernel/audit.c b/arch/parisc/kernel/audit.c
new file mode 100644
index 0000000..bdc7773
--- /dev/null
+++ b/arch/parisc/kernel/audit.c
@@ -0,0 +1,81 @@
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/audit.h>
+#include <asm/unistd.h>
+
+static unsigned dir_class[] = {
+#include <asm-generic/audit_dir_write.h>
+~0U
+};
+
+static unsigned read_class[] = {
+#include <asm-generic/audit_read.h>
+~0U
+};
+
+static unsigned write_class[] = {
+#include <asm-generic/audit_write.h>
+~0U
+};
+
+static unsigned chattr_class[] = {
+#include <asm-generic/audit_change_attr.h>
+~0U
+};
+
+static unsigned signal_class[] = {
+#include <asm-generic/audit_signal.h>
+~0U
+};
+
+int audit_classify_arch(int arch)
+{
+#ifdef CONFIG_COMPAT
+	if (arch == AUDIT_ARCH_PARISC)
+		return 1;
+#endif
+	return 0;
+}
+
+int audit_classify_syscall(int abi, unsigned syscall)
+{
+#ifdef CONFIG_COMPAT
+	extern int parisc32_classify_syscall(unsigned);
+	if (abi == AUDIT_ARCH_PARISC)
+		return parisc32_classify_syscall(syscall);
+#endif
+	switch (syscall) {
+	case __NR_open:
+		return 2;
+	case __NR_openat:
+		return 3;
+	case __NR_execve:
+		return 5;
+	default:
+		return 0;
+	}
+}
+
+static int __init audit_classes_init(void)
+{
+#ifdef CONFIG_COMPAT
+	extern __u32 parisc32_dir_class[];
+	extern __u32 parisc32_write_class[];
+	extern __u32 parisc32_read_class[];
+	extern __u32 parisc32_chattr_class[];
+	extern __u32 parisc32_signal_class[];
+	audit_register_class(AUDIT_CLASS_WRITE_32, parisc32_write_class);
+	audit_register_class(AUDIT_CLASS_READ_32, parisc32_read_class);
+	audit_register_class(AUDIT_CLASS_DIR_WRITE_32, parisc32_dir_class);
+	audit_register_class(AUDIT_CLASS_CHATTR_32, parisc32_chattr_class);
+	audit_register_class(AUDIT_CLASS_SIGNAL_32, parisc32_signal_class);
+#endif
+	audit_register_class(AUDIT_CLASS_WRITE, write_class);
+	audit_register_class(AUDIT_CLASS_READ, read_class);
+	audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
+	audit_register_class(AUDIT_CLASS_CHATTR, chattr_class);
+	audit_register_class(AUDIT_CLASS_SIGNAL, signal_class);
+	return 0;
+}
+
+__initcall(audit_classes_init);
diff --git a/arch/parisc/kernel/compat_audit.c b/arch/parisc/kernel/compat_audit.c
new file mode 100644
index 0000000..ba64dfe
--- /dev/null
+++ b/arch/parisc/kernel/compat_audit.c
@@ -0,0 +1,40 @@
+#include <asm/unistd.h>
+
+unsigned int parisc32_dir_class[] = {
+#include <asm-generic/audit_dir_write.h>
+~0U
+};
+
+unsigned int parisc32_chattr_class[] = {
+#include <asm-generic/audit_change_attr.h>
+~0U
+};
+
+unsigned int parisc32_write_class[] = {
+#include <asm-generic/audit_write.h>
+~0U
+};
+
+unsigned int parisc32_read_class[] = {
+#include <asm-generic/audit_read.h>
+~0U
+};
+
+unsigned int parisc32_signal_class[] = {
+#include <asm-generic/audit_signal.h>
+~0U
+};
+
+int parisc32_classify_syscall(unsigned syscall)
+{
+	switch (syscall) {
+	case __NR_open:
+		return 2;
+	case __NR_openat:
+		return 3;
+	case __NR_execve:
+		return 5;
+	default:
+		return 1;
+	}
+}
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 534abd4..e842ee2 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -19,6 +19,7 @@
 #include <linux/security.h>
 #include <linux/compat.h>
 #include <linux/signal.h>
+#include <linux/audit.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -267,11 +268,28 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 
 long do_syscall_trace_enter(struct pt_regs *regs)
 {
+	long ret = 0;
+
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
 	    tracehook_report_syscall_entry(regs))
-		return -1L;
-
-	return regs->gr[20];
+		ret = -1L;
+
+#ifdef CONFIG_64BIT
+	if (!is_compat_task())
+		audit_syscall_entry(AUDIT_ARCH_PARISC64,
+			regs->gr[20],
+			regs->gr[26], regs->gr[25],
+			regs->gr[24], regs->gr[23]);
+	else
+#endif
+		audit_syscall_entry(AUDIT_ARCH_PARISC,
+			regs->gr[20] & 0xffffffff,
+			regs->gr[26] & 0xffffffff,
+			regs->gr[25] & 0xffffffff,
+			regs->gr[24] & 0xffffffff,
+			regs->gr[23] & 0xffffffff);
+
+	return ret ? : regs->gr[20];
 }
 
 void do_syscall_trace_exit(struct pt_regs *regs)
@@ -279,6 +297,8 @@ void do_syscall_trace_exit(struct pt_regs *regs)
 	int stepping = test_thread_flag(TIF_SINGLESTEP) ||
 		test_thread_flag(TIF_BLOCKSTEP);
 
+	audit_syscall_exit(regs);
+
 	if (stepping || test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, stepping);
 }


diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
index a2db278..3c3cb00 100644
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -19,5 +19,9 @@
 #define user_stack_pointer(regs)	((regs)->gr[30])
 unsigned long profile_pc(struct pt_regs *);
 
+static inline unsigned long regs_return_value(struct pt_regs *regs)
+{
+	return regs->gr[20];
+}
 
 #endif
diff --git a/init/Kconfig b/init/Kconfig
index 3ecd8a1..d988745 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -284,7 +284,7 @@ config AUDIT
 
 config AUDITSYSCALL
 	bool "Enable system-call auditing support"
-	depends on AUDIT && (X86 || PPC || S390 || IA64 || UML || SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT))
+	depends on AUDIT && (X86 || PARISC || PPC || S390 || IA64 || UML || SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT))
 	default y if SECURITY_SELINUX
 	help
 	  Enable low-overhead system-call auditing infrastructure that
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From - Thu Nov 08 21:09:46 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: parisc mmap: private file maps
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Currently, the perl testsuite fails the lib/locale.t test causing the
Debian package build to fail if tests are not disabled:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=721206

This is also perl bug #119567.

What happens is the test uses mmap to open a few hundred locale files
with MAP_PRIVATE:

...
open("/usr/lib/locale/de_LI.utf8/LC_ADDRESS", O_RDONLY|O_CLOEXEC) =  4
fstat64(4, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 127, PROT_READ, MAP_PRIVATE, 4, 0) = 0xffe93000
close(4)                                = 0
open("/usr/lib/locale/de_LI.utf8/LC_NAME", O_RDONLY|O_CLOEXEC) = 4
fstat64(4, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 62, PROT_READ, MAP_PRIVATE, 4, 0) = -1 ENOMEM (Cannot 
allocate memory)

As can be seen, these are all small maps.

However, in arch_get_unmapped_area(), we allocate a shared area for all file
maps:

static unsigned long get_shared_area(struct address_space *mapping,
                 unsigned long addr, unsigned long len, unsigned long pgoff)
{
         struct vm_unmapped_area_info info;

         info.flags = 0;
         info.length = len;
         info.low_limit = PAGE_ALIGN(addr);
         info.high_limit = TASK_SIZE;
         info.vm_unmapped_area = PAGE_MASK & (SHMLBA - 1);
         info.align_offset = (get_offset(mapping) + pgoff) << PAGE_SHIFT;
         return vm_unmapped_area(&info);
}

As can be seen, align_mask is set to "PAGE_MASK & (SHMLBA - 1)".  This is
0x3ff000. vm_unmapped_area() adds this to len when it allocates the area.
So, at a minimum, we allocate just under 4 MB for each file map and rapidly
run out of memory for private file maps.

This results from the PA8800/PA8900 aliasing requirements.

Aside from the limited number of private file maps, I'm not sure the current
implementation is correct.  In a private map, a write to the area is not 
supposed
to affect the underlying object, and I assume any other existing maps to the
object.  It's also undefined whether changes to the underlying object 
after the
mmap call are visible within the private map.

So, I'm thinking it would be better to just allocate an unshared area 
and copy
the file region to it.  But this seems ugly.

The other alternative is to change the align_mask and align_offset for 
private
maps in some way.  But this seems tricky given the aliasing 
requirements.  Maybe
the alignment requirements could be relaxed on processors where aliasing 
isn't an
issue.

Thoughts?

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: parisc mmap: private file maps
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To: John David Anglin <dave.anglin@bell.net>
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On 17-Oct-13, at 12:45 PM, John David Anglin wrote:

> Currently, the perl testsuite fails the lib/locale.t test causing the
> Debian package build to fail if tests are not disabled:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=721206

The correct link is:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=721537

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:09:46 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: make "make install" not depend on vmlinux
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To: linux-parisc@vger.kernel.org,
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Install targets (install, zinstall, uinstall) on parisc have a
dependency to vmlinux. This may cause parts of the kernel to be rebuilt
during installation. We must avoid this since this may run as root.
Install targets "ABSOLUTELY MUST NOT MODIFY THE SOURCE TREE." as Linus
emphasized this in:

http://lkml.org/lkml/2013/7/10/600

So on parisc and maybe other archs we need the same as for x86:

1648e4f8 x86, kbuild: make "make install" not depend on vmlinux

This parisc patch was inspired by:

19514fc6 arm, kbuild: make "make install" not depend on vmlinux

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index e02f665..7187664 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -94,7 +94,7 @@ PALOCONF := $(shell if [ -f $(src)/palo.conf ]; then echo $(src)/palo.conf; \
 	else echo $(obj)/palo.conf; \
 	fi)
 
-palo: vmlinuz
+palo lifimage: vmlinuz
 	@if test ! -x "$(PALO)"; then \
 		echo 'ERROR: Please install palo first (apt-get install palo)';\
 		echo 'or build it from source and install it somewhere in your $$PATH';\
@@ -109,16 +109,23 @@ palo: vmlinuz
 	fi
 	$(PALO) -f $(PALOCONF)
 
-# Shorthands for known targets not supported by parisc, use vmlinux/vmlinuz as default
+BOOT_TARGETS    = zImage Image palo lifimage
+INSTALL_TARGETS = zinstall install
+
+PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
+
+bzImage zImage: vmlinuz
 Image: vmlinux
-zImage bzImage: vmlinuz
 
 vmlinuz: vmlinux
 	@gzip -cf -9 $< > $@
 
-install: vmlinuz
-	sh $(src)/arch/parisc/install.sh \
-			$(KERNELRELEASE) $< System.map "$(INSTALL_PATH)"
+install:
+	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
+			$(KERNELRELEASE) vmlinux System.map "$(INSTALL_PATH)"
+zinstall:
+	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
+			$(KERNELRELEASE) vmlinuz System.map "$(INSTALL_PATH)"
 
 CLEAN_FILES	+= lifimage
 MRPROPER_FILES	+= palo.conf
@@ -127,10 +134,11 @@ define archhelp
 	@echo  '* vmlinux	- Uncompressed kernel image (./vmlinux)'
 	@echo  '  vmlinuz	- Compressed kernel image (./vmlinuz)'
 	@echo  '  palo		- Bootable image (./lifimage)'
-	@echo  '  install	- Install kernel using'
+	@echo  '  install	- Install uncompressed vmlinux kernel using'
 	@echo  '		  (your) ~/bin/$(INSTALLKERNEL) or'
 	@echo  '		  (distribution) /sbin/$(INSTALLKERNEL) or'
 	@echo  '		  copy to $$(INSTALL_PATH)'
+	@echo  '  zinstall	- Install compressed vmlinuz kernel'
 endef
 
 # we require gcc 3.3 or above to compile the kernel
diff --git a/arch/parisc/install.sh b/arch/parisc/install.sh
index 4da682b..6f68784 100644
--- a/arch/parisc/install.sh
+++ b/arch/parisc/install.sh
@@ -19,20 +19,48 @@
 #   $4 - default install path (blank if root directory)
 #
 
+verify () {
+	if [ ! -f "$1" ]; then
+		echo ""                                                   1>&2
+		echo " *** Missing file: $1"                              1>&2
+		echo ' *** You need to run "make" before "make install".' 1>&2
+		echo ""                                                   1>&2
+		exit 1
+	fi
+}
+
+# Make sure the files actually exist
+
+verify "$2"
+verify "$3"
+
 # User may have a custom install script
 
-if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
-if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
+if [ -n "${INSTALLKERNEL}" ]; then
+  if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
+  if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
+fi
 
 # Default install
 
-if [ -f $4/vmlinuz ]; then
-	mv $4/vmlinuz $4/vmlinuz.old
+if [ "$(basename $2)" = "zImage" ]; then
+# Compressed install
+  echo "Installing compressed kernel"
+  base=vmlinuz
+else
+# Normal install
+  echo "Installing normal kernel"
+  base=vmlinux
+fi
+
+if [ -f $4/$base-$1 ]; then
+  mv $4/$base-$1 $4/$base-$1.old
 fi
+cat $2 > $4/$base-$1
 
-if [ -f $4/System.map ]; then
-	mv $4/System.map $4/System.old
+# Install system map file
+if [ -f $4/System.map-$1 ]; then
+  mv $4/System.map-$1 $4/System.map-$1.old
 fi
+cp $3 $4/System.map-$1
 
-cat $2 > $4/vmlinuz
-cp $3 $4/System.map
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From - Thu Nov 08 21:09:46 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.nfs
Subject: Re: 3.12-rcX - NFS regression - kswapd0 / kswapd1 stays using 100%
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To: "Myklebust, Trond" <Trond.Myklebust@netapp.com>
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On 10/17/2013 11:07 PM, Myklebust, Trond wrote:
> On Thu, 2013-10-17 at 22:42 +0200, Helge Deller wrote:
>> I'm seeing a regression with current kernel git head when using NFS-mounts.
>> Architecture in my case is parisc, although I don't think that this is relevant.
>> At least kernel 3.10 (and I think 3.11) didn't showed that problem.
>>
>> The symtom is, that "top" shows high usage of either kswapd0 or kswapd1.
>> Here is an output with kswapd1:
>>   PID USER      PR  NI  VIRT  RES  SHR S  %CPU %MEM     TIME+ COMMAND
>>    37 root      20   0     0    0    0 R  91.8  0.0  63:00.40 kswapd1
>> 28448 root      20   0  3252 1428 1060 R  15.3  0.0   0:00.09 top
>>     1 root      20   0  2784  988  852 S   0.0  0.0   0:09.95 init
>>
>> This is what ps shows:
>> lsXXXX:~# ps -ef |  grep mount
>> root      1181     1  0 14:51 ?        00:00:18 /usr/sbin/automount --pid-file /var/run/autofs.pid
>> root     25331  1181  0 21:25 ?        00:00:00 /bin/mount -n -t nfs -s -o nolock,rw,hard,intr homes:/unixhome1 /net/home1
>> root     25332 25331  0 21:25 ?        00:00:00 /sbin/mount.nfs homes:/unixhome1 /net/home1 -s -n -o rw,nolock,hard,intr
>>
>> And using sysrq to show the blocked tasks I get in syslog:
>> SysRq : Show Blocked State
>> mount.nfs       D 00000000401040c0     0 25332  25331 0x00000010
>> Backtrace:
>> [<0000000040113a68>] __schedule+0x500/0x810
>>
>> I know it's not a problem of the NFS server, since the same mount is still ok on other machines.
>> The NFS directory was already mounted and in use when this mount happened again (called by cron-job). 
>>  
>> Any ideas?
> 
> If the NFS directory is already mounted, then why is the automounter
> trying to mount it a second time?

I was wrong in this.
The directory wasn't mounted yet (or at least it was unmounted in the meantime before the new
mount.nfs was called).

I'm now not even sure, that the high kswapd is really triggered by the NFS problem,
because I now have another machine with the blocked NFS-mount, but without
the high kswapd usage.

Nevertheless, the blocked nfs mount tasks really make me wonder. There is clearly
some kind of regression since it doesn't happen with older kernels.

Helge
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Subject: Re: 3.12-rcX - NFS regression - kswapd0 / kswapd1 stays using 100%
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On Fri, 2013-10-18 at 21:26 +-0200, Helge Deller wrote:
+AD4- On 10/17/2013 11:07 PM, Myklebust, Trond wrote:
+AD4- +AD4- On Thu, 2013-10-17 at 22:42 +020-, Helge Deller wrote:
+AD4- +AD4APg- I'm seeing a regression with current kernel git head when using NFS-mounts.
+AD4- +AD4APg- Architecture in my case is parisc, although I don't think that this is relevant.
+AD4- +AD4APg- At least kernel 3.10 (and I think 3.11) didn't showed that problem.
+AD4- +AD4APg-
+AD4- +AD4APg- The symtom is, that +ACI-top+ACI- shows high usage of either kswapd0 or kswapd1.
+AD4- +AD4APg- Here is an output with kswapd1:
+AD4- +AD4APg-   PID USER      PR  NI  VIRT  RES  SHR S  +ACU-CPU +ACU-MEM     TIME COMMAND
+AD4- +AD4APg-    37 root      20   0     0    0    0 R  91.8  0.0  63:00.40 kswapd1
+AD4- +AD4APg- 28448 root      20   0  3252 1428 1060 R  15.3  0.0   0:00.09 top
+AD4- +AD4APg-     1 root      20   0  2784  988  852 S   0.0  0.0   0:09.95 init
+AD4- +AD4APg-
+AD4- +AD4APg- This is what ps shows:
+AD4- +AD4APg- lsXXXX:+AH4AIw- ps -ef +AHw-  grep mount
+AD4- +AD4APg- root      1181     1  0 14:51 ?        00:00:18 /usr/sbin/automount --pid-file /var/run/autofs.pid
+AD4- +AD4APg- root     25331  1181  0 21:25 ?        00:00:00 /bin/mount -n -t nfs -s -o nolock,rw,hard,intr homes:/unixhome1 /net/home1
+AD4- +AD4APg- root     25332 25331  0 21:25 ?        00:00:00 /sbin/mount.nfs homes:/unixhome1 /net/home1 -s -n -o rw,nolock,hard,intr
+AD4- +AD4APg-
+AD4- +AD4APg- And using sysrq to show the blocked tasks I get in syslog:
+AD4- +AD4APg- SysRq : Show Blocked State
+AD4- +AD4APg- mount.nfs       D 00000000401040c0     0 25332  25331 0x00000010
+AD4- +AD4APg- Backtrace:
+AD4- +AD4APg- +AFsAPA-0000000040113a68+AD4AXQ- +AF8AXw-schedule+0x500/0x810-
+AD4- +AD4APg-
+AD4- +AD4APg- I know it's not a problem of the NFS server, since the same mount is still ok on other machines.
+AD4- +AD4APg- The NFS directory was already mounted and in use when this mount happened again (called by cron-job). 
+AD4- +AD4APg-  
+AD4- +AD4APg- Any ideas?
+AD4- +AD4- 
+AD4- +AD4- If the NFS directory is already mounted, then why is the automounter
+AD4- +AD4- trying to mount it a second time?
+AD4- 
+AD4- I was wrong in this.
+AD4- The directory wasn't mounted yet (or at least it was unmounted in the meantime before the new
+AD4- mount.nfs was called).
+AD4- 
+AD4- I'm now not even sure, that the high kswapd is really triggered by the NFS problem,
+AD4- because I now have another machine with the blocked NFS-mount, but without
+AD4- the high kswapd usage.
+AD4- 
+AD4- Nevertheless, the blocked nfs mount tasks really make me wonder. There is clearly
+AD4- some kind of regression since it doesn't happen with older kernels.

Have you ever reproduced it without the automounter?

Also, could you please try a sysRQ-t the next time it happens, so that
we can get a trace of where the mount program is hanging. Knowing that
the mount is stuck in +ACIAXwBf-schedule()+ACI- is not really interesting unless we
know from where that was called.

-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust+AEA-netapp.com
www.netapp.com
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Subject: Re: 3.12-rcX - NFS regression - kswapd0 / kswapd1 stays using 100%
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To: "Myklebust, Trond" <Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
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On 10/18/2013 09:36 PM, Myklebust, Trond wrote:
> On Fri, 2013-10-18 at 21:26 +0200, Helge Deller wrote:
>> On 10/17/2013 11:07 PM, Myklebust, Trond wrote:
>>> On Thu, 2013-10-17 at 22:42 m, Helge Deller wrote:
>>>> I'm seeing a regression with current kernel git head when using NFS-mounts.
>>>> Architecture in my case is parisc, although I don't think that this is relevant.
>>>> At least kernel 3.10 (and I think 3.11) didn't showed that problem.
>>>>
>>>> The symtom is, that "top" shows high usage of either kswapd0 or kswapd1.
>>>> Here is an output with kswapd1:
>>>>   PID USER      PR  NI  VIRT  RES  SHR S  %CPU %MEM     TIME COMMAND
>>>>    37 root      20   0     0    0    0 R  91.8  0.0  63:00.40 kswapd1
>>>> 28448 root      20   0  3252 1428 1060 R  15.3  0.0   0:00.09 top
>>>>     1 root      20   0  2784  988  852 S   0.0  0.0   0:09.95 init
>>>>
>>>> This is what ps shows:
>>>> lsXXXX:~# ps -ef |  grep mount
>>>> root      1181     1  0 14:51 ?        00:00:18 /usr/sbin/automount --pid-file /var/run/autofs.pid
>>>> root     25331  1181  0 21:25 ?        00:00:00 /bin/mount -n -t nfs -s -o nolock,rw,hard,intr homes:/unixhome1 /net/home1
>>>> root     25332 25331  0 21:25 ?        00:00:00 /sbin/mount.nfs homes:/unixhome1 /net/home1 -s -n -o rw,nolock,hard,intr
>>>>
>>>> And using sysrq to show the blocked tasks I get in syslog:
>>>> SysRq : Show Blocked State
>>>> mount.nfs       D 00000000401040c0     0 25332  25331 0x00000010
>>>> Backtrace:
>>>> [<0000000040113a68>] __schedule
>>>>
>>>> I know it's not a problem of the NFS server, since the same mount is still ok on other machines.
>>>> The NFS directory was already mounted and in use when this mount happened again (called by cron-job). 
>>>>  
>>>> Any ideas?
>>>
>>> If the NFS directory is already mounted, then why is the automounter
>>> trying to mount it a second time?
>>
>> I was wrong in this.
>> The directory wasn't mounted yet (or at least it was unmounted in the meantime before the new
>> mount.nfs was called).
>>
>> I'm now not even sure, that the high kswapd is really triggered by the NFS problem,
>> because I now have another machine with the blocked NFS-mount, but without
>> the high kswapd usage.
>>
>> Nevertheless, the blocked nfs mount tasks really make me wonder. There is clearly
>> some kind of regression since it doesn't happen with older kernels.
> 
> Have you ever reproduced it without the automounter?

No, because it happens only after quite some time (>12h) and only if I have it
under pressure (load is >9 on a 4-way box).

I'll try it as soon as possible.

> Also, could you please try a sysRQ-t the next time it happens, so that
> we can get a trace of where the mount program is hanging. Knowing that
> the mount is stuck in "__schedule()" is not really interesting unless we
> know from where that was called.

Actually, the machine was still running in this state.
Here is sysrq-t:
[112009.084000] mount           S 00000000401040c0     0 25331      1 0x00000010
[112009.084000] Backtrace:
[112009.084000]  [<0000000040113a68>] __schedule+0x500/0x810
[112009.232000]
[112009.232000] mount.nfs       D 00000000401040c0     0 25332  25331 0x00000010
[112009.232000] Backtrace:
[112009.232000]  [<0000000040113a68>] __schedule+0x500/0x810

Helge
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On Fri, 2013-10-18 at 22:03 +-0200, Helge Deller wrote:
+AD4- On 10/18/2013 09:36 PM, Myklebust, Trond wrote:
+AD4- +AD4- Also, could you please try a sysRQ-t the next time it happens, so that
+AD4- +AD4- we can get a trace of where the mount program is hanging. Knowing that
+AD4- +AD4- the mount is stuck in +ACIAXwBf-schedule()+ACI- is not really interesting unless we
+AD4- +AD4- know from where that was called.
+AD4- 
+AD4- Actually, the machine was still running in this state.
+AD4- Here is sysrq-t:
+AD4- +AFs-112009.084000+AF0- mount           S 00000000401040c0     0 25331      1 0x00000010
+AD4- +AFs-112009.084000+AF0- Backtrace:
+AD4- +AFs-112009.084000+AF0-  +AFsAPA-0000000040113a68+AD4AXQ- +AF8AXw-schedule+0x500/0x810-
+AD4- +AFs-112009.232000+AF0-
+AD4- +AFs-112009.232000+AF0- mount.nfs       D 00000000401040c0     0 25332  25331 0x00000010
+AD4- +AFs-112009.232000+AF0- Backtrace:
+AD4- +AFs-112009.232000+AF0-  +AFsAPA-0000000040113a68+AD4AXQ- +AF8AXw-schedule+0x500/0x810-

That makes no sense unless sysrq-t works differently on parisc than on
other platforms. I'd expect the backtrace to at least include a system
call. Parisc experts?

-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust+AEA-netapp.com
www.netapp.com
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On 10/18/2013 10:12 PM, Myklebust, Trond wrote:
> On Fri, 2013-10-18 at 22:03 +0200, Helge Deller wrote:
>> On 10/18/2013 09:36 PM, Myklebust, Trond wrote:
>>> Also, could you please try a sysRQ-t the next time it happens, so that
>>> we can get a trace of where the mount program is hanging. Knowing that
>>> the mount is stuck in "__schedule()" is not really interesting unless we
>>> know from where that was called.
>>
>> Actually, the machine was still running in this state.
>> Here is sysrq-t:
>> [112009.084000] mount           S 00000000401040c0     0 25331      1 0x00000010
>> [112009.084000] Backtrace:
>> [112009.084000]  [<0000000040113a68>] __schedule
>> [112009.232000]
>> [112009.232000] mount.nfs       D 00000000401040c0     0 25332  25331 0x00000010
>> [112009.232000] Backtrace:
>> [112009.232000]  [<0000000040113a68>] __schedule
> 
> That makes no sense unless sysrq-t works differently on parisc than on
> other platforms. I'd expect the backtrace to at least include a system
> call. Parisc experts?

sysrq-t doesn't work differently on parisc. For other processes I do get
a backtrace like the one on x86_64.
That's the main reason why I asked for ideas here on the list.
I do see the stuck process, but don't see any indications where it comes from.

Helge
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From - Thu Nov 08 21:09:46 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc fixes for v3.12
Date: Sat, 19 Oct 2013 22:27:59 +0200
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Cc: Christoph Hellwig <hch@infradead.org>
To: Linus Torvalds <torvalds@linux-foundation.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi Linus,

Please pull the latest parisc fixes from

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.12

There are just two small fixes in here:
- Revert a commit which exported the flush_cache_page function. This was
  noticed by Christoph Hellwig. 
- Enable the DEVTMPFS, DEVTMPFS_MOUNT and BLK_DEV_INITRD config options in the
  parisc defconfigs so that latest udev/initrd finds the root disk at boot.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (2):
      Revert "parisc: Export flush_cache_page() (needed by lustre)"
      parisc: enable DEVTMPFS, DEVTMPFS_MOUNT and BLK_DEV_INITRD in defconfigs

 arch/parisc/configs/712_defconfig     | 2 ++
 arch/parisc/configs/a500_defconfig    | 2 ++
 arch/parisc/configs/b180_defconfig    | 3 +++
 arch/parisc/configs/c3000_defconfig   | 3 +++
 arch/parisc/configs/c8000_defconfig   | 2 ++
 arch/parisc/configs/default_defconfig | 2 ++
 arch/parisc/kernel/cache.c            | 1 -
 7 files changed, 14 insertions(+), 1 deletion(-)
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: HP J5600/J6750 64bit SMP CPU#1 stuck problems [was: Does there exists
 any 32bit-only PARISC SMP machines?]
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Cc: Dave Land <xmechanic@landcomp.net>,
	John David Anglin <dave.anglin@bell.net>
To: linux-parisc <linux-parisc@vger.kernel.org>,
	Domenico Andreoli <cavokz@gmail.com>
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Domenico,

On 09/04/2013 04:28 PM, Domenico Andreoli wrote:
>>>> J5600 is SMP capable in both 32bit and 64bit mode.
>>>> mine doesn't boot 64bit SMP since 2.6.22. I've never been able to trace
>>>> it down but can confirm it happens also on more recent kernels.
>>
>> I confirm that smp parisc64 v3.11 doesn't bring up both the cpus on my
>> system but at least it boots one, something that didn't happen in some
>> darker moments since 2.6.22.
>>
>> similar "SMP: CPU:1 is stuck." happens also with debian v3.10-parisc64-smp kernel.
> 
> BTW, this is the most detailed investigation I'm aware of:
> https://lkml.org/lkml/2008/4/20/251

Dave Anglin had the idea that the 64bit SMP CPU#1 stuck problems might be
related to PDC- or I/O-space conflicts with physical memory.
On Dave Land's machine (J6750) we could verify that off-list.  

I assume you have more than 3GB (4GB) RAM in your machine?
If yes, then if you phyiscally remove some memory so that you leave a max. 
of 3GB in, the 64bit SMP kernel will most likely boot up all CPUs.

You wrote:
> mine doesn't boot 64bit SMP since 2.6.22. 

Are you *really* sure that it booted 64bit SMP with kernel 2.6.22 ?
Or did you maybe upgraded memory after that date?
If it sucessfully booted, then we maybe have only some kind of regression. 

Helge 

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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HP J5600/J6750 64bit SMP CPU#1 stuck problems [was: Does there
 exists any 32bit-only PARISC SMP machines?]
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It also likely will boot 32-bit SMP kernel with both CPUs with more than 
3 GB memory.  This provides 3.63 GB
of usable memory.

Dave

On 10/21/2013 4:07 PM, Helge Deller wrote:
> Domenico,
>
> On 09/04/2013 04:28 PM, Domenico Andreoli wrote:
>>>>> J5600 is SMP capable in both 32bit and 64bit mode.
>>>>> mine doesn't boot 64bit SMP since 2.6.22. I've never been able to trace
>>>>> it down but can confirm it happens also on more recent kernels.
>>> I confirm that smp parisc64 v3.11 doesn't bring up both the cpus on my
>>> system but at least it boots one, something that didn't happen in some
>>> darker moments since 2.6.22.
>>>
>>> similar "SMP: CPU:1 is stuck." happens also with debian v3.10-parisc64-smp kernel.
>> BTW, this is the most detailed investigation I'm aware of:
>> https://lkml.org/lkml/2008/4/20/251
> Dave Anglin had the idea that the 64bit SMP CPU#1 stuck problems might be
> related to PDC- or I/O-space conflicts with physical memory.
> On Dave Land's machine (J6750) we could verify that off-list.
>
> I assume you have more than 3GB (4GB) RAM in your machine?
> If yes, then if you phyiscally remove some memory so that you leave a max.
> of 3GB in, the 64bit SMP kernel will most likely boot up all CPUs.
>
> You wrote:
>> mine doesn't boot 64bit SMP since 2.6.22.
> Are you *really* sure that it booted 64bit SMP with kernel 2.6.22 ?
> Or did you maybe upgraded memory after that date?
> If it sucessfully booted, then we maybe have only some kind of regression.
>
> Helge
>
>
>


-- 
John David Anglin    dave.anglin@bell.net

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Newsgroups: gmane.linux.ports.parisc
Subject: Re: HP J5600/J6750 64bit SMP CPU#1 stuck problems [was: Does there
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On 10/21/2013 10:37 PM, John David Anglin wrote:
> It also likely will boot 32-bit SMP kernel with both CPUs with more than 3 GB memory.  This provides 3.63 GB
> of usable memory.

Sure, it will.
But the idea is to be able to drop the 32bit SMP kernels for Debian...
And those machines are currently the only reason why we can't drop 32bit SMP. 

Helge

> On 10/21/2013 4:07 PM, Helge Deller wrote:
>> Domenico,
>>
>> On 09/04/2013 04:28 PM, Domenico Andreoli wrote:
>>>>>> J5600 is SMP capable in both 32bit and 64bit mode.
>>>>>> mine doesn't boot 64bit SMP since 2.6.22. I've never been able to trace
>>>>>> it down but can confirm it happens also on more recent kernels.
>>>> I confirm that smp parisc64 v3.11 doesn't bring up both the cpus on my
>>>> system but at least it boots one, something that didn't happen in some
>>>> darker moments since 2.6.22.
>>>>
>>>> similar "SMP: CPU:1 is stuck." happens also with debian v3.10-parisc64-smp kernel.
>>> BTW, this is the most detailed investigation I'm aware of:
>>> https://lkml.org/lkml/2008/4/20/251
>> Dave Anglin had the idea that the 64bit SMP CPU#1 stuck problems might be
>> related to PDC- or I/O-space conflicts with physical memory.
>> On Dave Land's machine (J6750) we could verify that off-list.
>>
>> I assume you have more than 3GB (4GB) RAM in your machine?
>> If yes, then if you phyiscally remove some memory so that you leave a max.
>> of 3GB in, the 64bit SMP kernel will most likely boot up all CPUs.
>>
>> You wrote:
>>> mine doesn't boot 64bit SMP since 2.6.22.
>> Are you *really* sure that it booted 64bit SMP with kernel 2.6.22 ?
>> Or did you maybe upgraded memory after that date?
>> If it sucessfully booted, then we maybe have only some kind of regression.
>>
>> Helge

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From - Thu Nov 08 21:09:46 2018
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From: Thierry Reding <thierry.reding@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel.next,gmane.linux.kernel
Subject: linux-next: manual merge of the net-next tree
Date: Tue, 22 Oct 2013 17:10:45 +0200
Lines: 34
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To: Eric Dumazet <edumazet@google.com>, Helge Deller <deller@gmx.de>,
	David Miller <davem@davemloft.net>, <netdev@vger.kernel.org>,
	Parisc List <linux-parisc@vger.kernel.org>
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Today's linux-next merge of the net-next tree got a conflict in

	arch/parisc/include/uapi/asm/socket.h

caused by commits 62748f3 (net: introduce SO_MAX_PACING_RATE) and 1a0e62d
(parisc: break out SOCK_NONBLOCK define to own asm header file).

I fixed it up (see below). Please verify that the resolution looks good.

Thanks,
Thierry
---
diff --cc arch/parisc/include/uapi/asm/socket.h
index 9f2174f,7c614d0..f33113a
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@@ -75,4 -75,11 +75,6 @@@
  
  #define SO_BUSY_POLL		0x4027
  
+ #define SO_MAX_PACING_RATE	0x4048
+ 
 -/* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
 - * have to define SOCK_NONBLOCK to a different value here.
 - */
 -#define SOCK_NONBLOCK   0x40000000
 -
 -#endif /* _ASM_SOCKET_H */
 +#endif /* _UAPI_ASM_SOCKET_H */
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From - Thu Nov 08 21:09:46 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc,gmane.comp.security.fuzzing.trinity
Subject: Trinity for PA-RISC
Date: Tue, 22 Oct 2013 20:33:20 +0200
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Hi all,

out of boredom I did the first steps to port trinity to PA-RISC. The second 
patch is needed to get it compile, but since those headers are apparently not 
needed on other archs I suspect something is wrong with the PA-RISC headers. 
The implementation for some syscalls is missing, I just picked up what was 
available by default. Also everything currently is 32 bit. In contrast to what 
other archs do there currently is only a 32 bit userspace on PA-RISC, but 
there are many systems with a 64 bit userspace.

I have the hope that one of the usual suspects would use this to hammer on the 
kernel and fix the fallout. ;)

Eike
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>From 563bbaf50193df24f592f41f0c0306c32d2e457d Mon Sep 17 00:00:00 2001
From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Date: Tue, 22 Oct 2013 18:39:48 +0200
Subject: [PATCH 1/2] add basic information for PA-RISC architecture

---
 include/arch-parisc.h     |  22 +++
 include/arch-syscalls.h   |   3 +
 include/arch.h            |   4 +
 include/syscalls-parisc.h | 347 ++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 376 insertions(+)
 create mode 100644 include/arch-parisc.h
 create mode 100644 include/syscalls-parisc.h

diff --git a/include/arch-parisc.h b/include/arch-parisc.h
new file mode 100644
index 0000000..757facf
--- /dev/null
+++ b/include/arch-parisc.h
@@ -0,0 +1,22 @@
+// FIXME: depends on kernel bit size, userspace is always 32 bit
+
+#define PAGE_OFFSET 0x10000000
+
+#if 0
+// for 64 bit
+#define PAGE_OFFSET 0x40000000
+#endif
+
+#define KERNEL_ADDR	0xa0000000	// FIXME: Placeholder
+#define MODULE_ADDR     0xa0000000L	// FIXME: Placeholder
+#define TASK_SIZE 0xa0000000	// FIXME: Placeholder
+
+#define PAGE_SHIFT 		12
+#define PTE_FILE_MAX_BITS	(32 - 11)
+
+#define PTRACE_GETREGS		0
+#define PTRACE_GETFPREGS	0
+#define PTRACE_SETREGS		0
+#define PTRACE_SETFPREGS	0
+
+#define SYSCALLS syscalls_parisc
diff --git a/include/arch-syscalls.h b/include/arch-syscalls.h
index b1cf265..22866f5 100644
--- a/include/arch-syscalls.h
+++ b/include/arch-syscalls.h
@@ -38,4 +38,7 @@
 #ifdef __aarch64__
 #include "syscalls-aarch64.h"
 #endif
+#ifdef __hppa__
+#include "syscalls-parisc.h"
+#endif
 #endif  /* _ARCH_SYSCALLS_H */
diff --git a/include/arch.h b/include/arch.h
index 1835204..fe91660 100644
--- a/include/arch.h
+++ b/include/arch.h
@@ -45,6 +45,10 @@
 #include "arch-aarch64.h"
 #endif
 
+#ifdef __hppa__
+#include "arch-parisc.h"
+#endif
+
 #ifndef SYSCALL_OFFSET
 #define SYSCALL_OFFSET 0
 #endif
diff --git a/include/syscalls-parisc.h b/include/syscalls-parisc.h
new file mode 100644
index 0000000..041d11e
--- /dev/null
+++ b/include/syscalls-parisc.h
@@ -0,0 +1,347 @@
+#ifndef _SYSCALLS_PARISC_H
+#define _SYSCALLS_PARISC_H 1
+
+/* Syscalls from arch/parisc/kernel/syscall_table.S as of 3.12-rc6 */
+
+#include "sanitise.h"
+#include "syscall.h"
+#include "syscalls/syscalls.h"
+
+struct syscalltable syscalls_parisc[] = {
+	{ .entry = &syscall_restart_syscall },
+	{ .entry = &syscall_exit },
+	{ .entry = &syscall_fork },	/* FIXME: fork_wrapper */
+	{ .entry = &syscall_read },
+	{ .entry = &syscall_write },
+	{ .entry = &syscall_open },
+	{ .entry = &syscall_close },
+	{ .entry = &syscall_waitpid },
+	{ .entry = &syscall_creat },
+	{ .entry = &syscall_link },
+	{ .entry = &syscall_unlink },
+	{ .entry = &syscall_execve },
+	{ .entry = &syscall_chdir },
+	{ .entry = &syscall_time },
+	{ .entry = &syscall_mknod },
+	{ .entry = &syscall_chmod },
+	{ .entry = &syscall_lchown },
+	{ .entry = &syscall_socket },
+	{ .entry = &syscall_newstat },
+	{ .entry = &syscall_lseek },
+	{ .entry = &syscall_getpid },
+	{ .entry = &syscall_mount },
+	{ .entry = &syscall_bind },
+	{ .entry = &syscall_setuid },
+	{ .entry = &syscall_getuid },
+	{ .entry = &syscall_stime },
+	{ .entry = &syscall_ptrace },
+	{ .entry = &syscall_alarm },
+	{ .entry = &syscall_newfstat },
+	{ .entry = &syscall_pause },
+	{ .entry = &syscall_utime },
+	{ .entry = &syscall_connect },
+	{ .entry = &syscall_listen },
+	{ .entry = &syscall_access },
+	{ .entry = &syscall_nice },
+	{ .entry = &syscall_accept },
+	{ .entry = &syscall_sync },
+	{ .entry = &syscall_kill },
+	{ .entry = &syscall_rename },
+	{ .entry = &syscall_mkdir },
+	{ .entry = &syscall_rmdir },
+	{ .entry = &syscall_dup },
+	{ .entry = &syscall_pipe },
+	{ .entry = &syscall_times },
+	{ .entry = &syscall_getsockname },
+	{ .entry = &syscall_brk },
+	{ .entry = &syscall_setgid },
+	{ .entry = &syscall_getgid },
+	{ .entry = &syscall_signal },
+	{ .entry = &syscall_geteuid },
+	{ .entry = &syscall_getegid },
+	{ .entry = &syscall_acct },
+	{ .entry = &syscall_umount },
+	{ .entry = &syscall_getpeername },
+	{ .entry = &syscall_ioctl },
+	{ .entry = &syscall_fcntl },
+	{ .entry = &syscall_socketpair },
+	{ .entry = &syscall_setpgid },
+	{ .entry = &syscall_send },
+	{ .entry = &syscall_newuname },
+	{ .entry = &syscall_umask },
+	{ .entry = &syscall_chroot },
+	{ .entry = &syscall_ustat },
+	{ .entry = &syscall_dup2 },
+	{ .entry = &syscall_getppid },
+	{ .entry = &syscall_getpgrp },
+	{ .entry = &syscall_setsid },
+	{ .entry = &syscall_pivot_root },
+	{ .entry = &syscall_sgetmask },
+	{ .entry = &syscall_ssetmask },
+	{ .entry = &syscall_setreuid },
+	{ .entry = &syscall_setregid },
+	{ .entry = &syscall_mincore },
+	{ .entry = &syscall_sigpending },
+	{ .entry = &syscall_sethostname },
+	{ .entry = &syscall_setrlimit },
+	{ .entry = &syscall_getrlimit },
+	{ .entry = &syscall_getrusage },
+	{ .entry = &syscall_gettimeofday },
+	{ .entry = &syscall_settimeofday },
+	{ .entry = &syscall_getgroups },
+	{ .entry = &syscall_setgroups },
+	{ .entry = &syscall_sendto },
+	{ .entry = &syscall_symlink },
+	{ .entry = &syscall_newlstat },
+	{ .entry = &syscall_readlink },
+	{ .entry = &syscall_ni_syscall },	/* was uselib */
+	{ .entry = &syscall_swapon },
+	{ .entry = &syscall_reboot },
+	{ .entry = &syscall_mmap2 },
+	{ .entry = &syscall_mmap },
+	{ .entry = &syscall_munmap },
+	{ .entry = &syscall_truncate },
+	{ .entry = &syscall_ftruncate },
+	{ .entry = &syscall_fchmod },
+	{ .entry = &syscall_fchown },
+	{ .entry = &syscall_getpriority },
+	{ .entry = &syscall_setpriority },
+	{ .entry = &syscall_recv },
+	{ .entry = &syscall_statfs },
+	{ .entry = &syscall_fstatfs },
+	{ .entry = &syscall_stat64 },
+	{ .entry = &syscall_ni_syscall },	/* was socketcall */
+	{ .entry = &syscall_syslog },
+	{ .entry = &syscall_setitimer },
+	{ .entry = &syscall_getitimer },
+	{ .entry = &syscall_capget },
+	{ .entry = &syscall_capset },
+	{ .entry = &syscall_pread64 },
+	{ .entry = &syscall_pwrite64 },
+	{ .entry = &syscall_getcwd },
+	{ .entry = &syscall_vhangup },
+	{ .entry = &syscall_fstat64 },
+	{ .entry = &syscall_vfork },
+	{ .entry = &syscall_wait4 },
+	{ .entry = &syscall_swapoff },
+	{ .entry = &syscall_sysinfo },
+	{ .entry = &syscall_shutdown },
+	{ .entry = &syscall_fsync },
+	{ .entry = &syscall_madvise },
+	{ .entry = &syscall_clone },
+	{ .entry = &syscall_setdomainname },
+	{ .entry = &syscall_sendfile },
+	{ .entry = &syscall_recvfrom },
+	{ .entry = &syscall_adjtimex },
+	{ .entry = &syscall_mprotect },
+	{ .entry = &syscall_sigprocmask },
+	{ .entry = &syscall_ni_syscall },	/* obsolete "create_module" syscall */
+	{ .entry = &syscall_init_module },
+	{ .entry = &syscall_delete_module },
+	{ .entry = &syscall_ni_syscall },	/* was get_kernel_syms */
+	{ .entry = &syscall_quotactl },
+	{ .entry = &syscall_getpgid },
+	{ .entry = &syscall_fchdir },
+	{ .entry = &syscall_bdflush },
+	{ .entry = &syscall_sysfs },
+	{ .entry = &syscall_personality },
+	{ .entry = &syscall_ni_syscall },	/* obsolete "afs" syscall */
+	{ .entry = &syscall_setfsuid },
+	{ .entry = &syscall_setfsgid },
+	{ .entry = &syscall_llseek },
+	{ .entry = &syscall_getdents },
+	{ .entry = &syscall_select },
+	{ .entry = &syscall_flock },
+	{ .entry = &syscall_msync },
+	{ .entry = &syscall_readv },
+	{ .entry = &syscall_writev },
+	{ .entry = &syscall_getsid },
+	{ .entry = &syscall_fdatasync },
+	{ .entry = &syscall_sysctl },
+	{ .entry = &syscall_mlock },
+	{ .entry = &syscall_munlock },
+	{ .entry = &syscall_mlockall },
+	{ .entry = &syscall_munlockall },
+	{ .entry = &syscall_sched_setparam },
+	{ .entry = &syscall_sched_getparam },
+	{ .entry = &syscall_sched_setscheduler },
+	{ .entry = &syscall_sched_getscheduler },
+	{ .entry = &syscall_sched_yield },
+	{ .entry = &syscall_sched_get_priority_max },
+	{ .entry = &syscall_sched_get_priority_min },
+	{ .entry = &syscall_sched_rr_get_interval },
+	{ .entry = &syscall_nanosleep },
+	{ .entry = &syscall_mremap },
+	{ .entry = &syscall_setresuid },
+	{ .entry = &syscall_getresuid },
+	{ .entry = &syscall_sigaltstack },
+	{ .entry = &syscall_ni_syscall },	/* obsolete "query_module" syscall */
+	{ .entry = &syscall_poll },
+	{ .entry = &syscall_ni_syscall },	/* was nfsserverctl */
+	{ .entry = &syscall_setresgid },
+	{ .entry = &syscall_getresgid },
+	{ .entry = &syscall_prctl },
+	{ .entry = &syscall_rt_sigreturn },
+	{ .entry = &syscall_rt_sigaction },
+	{ .entry = &syscall_rt_sigprocmask },
+	{ .entry = &syscall_rt_sigpending },
+	{ .entry = &syscall_rt_sigtimedwait },
+	{ .entry = &syscall_rt_sigqueueinfo },
+	{ .entry = &syscall_rt_sigsuspend },
+	{ .entry = &syscall_chown },
+	{ .entry = &syscall_setsockopt },
+	{ .entry = &syscall_getsockopt },
+	{ .entry = &syscall_sendmsg },
+	{ .entry = &syscall_recvmsg },
+	{ .entry = &syscall_semop },
+	{ .entry = &syscall_semget },
+	{ .entry = &syscall_semctl },
+	{ .entry = &syscall_msgsnd },
+	{ .entry = &syscall_msgrcv },
+	{ .entry = &syscall_msgget },
+	{ .entry = &syscall_msgctl },
+	{ .entry = &syscall_shmat },
+	{ .entry = &syscall_shmdt },
+	{ .entry = &syscall_shmget },
+	{ .entry = &syscall_shmctl },
+	{ .entry = &syscall_ni_syscall },	/* streams1 */
+	{ .entry = &syscall_ni_syscall },	/* streams2 */
+	{ .entry = &syscall_lstat64 },
+	{ .entry = &syscall_truncate64 },
+	{ .entry = &syscall_ftruncate64 },
+	{ .entry = &syscall_getdents64 },
+	{ .entry = &syscall_ni_syscall },	// FIXME: fcntl64
+	{ .entry = &syscall_ni_syscall },	/* obsolete "attrctl" syscall */
+	{ .entry = &syscall_ni_syscall },	/* obsolete "acl_get" syscall */
+	{ .entry = &syscall_ni_syscall },	/* obsolete "acl_set" syscall */
+	{ .entry = &syscall_gettid },
+	{ .entry = &syscall_readahead },
+	{ .entry = &syscall_tkill },
+	{ .entry = &syscall_sendfile64 },
+	{ .entry = &syscall_futex },
+	{ .entry = &syscall_sched_setaffinity },
+	{ .entry = &syscall_sched_getaffinity },
+	{ .entry = &syscall_ni_syscall },	/* set_thread_area */
+	{ .entry = &syscall_ni_syscall },	/* get_thread_area */
+	{ .entry = &syscall_io_setup },
+	{ .entry = &syscall_io_destroy },
+	{ .entry = &syscall_io_getevents },
+	{ .entry = &syscall_io_submit },
+	{ .entry = &syscall_io_cancel },
+	{ .entry = &syscall_ni_syscall },	/* FIXME alloc_hugepages */
+	{ .entry = &syscall_ni_syscall },	/* FIXME free_hugepages */
+	{ .entry = &syscall_exit_group },
+	{ .entry = &syscall_lookup_dcookie },
+	{ .entry = &syscall_epoll_create },
+	{ .entry = &syscall_epoll_ctl },
+	{ .entry = &syscall_epoll_wait },
+	{ .entry = &syscall_remap_file_pages },
+	{ .entry = &syscall_semtimedop },
+	{ .entry = &syscall_mq_open },
+	{ .entry = &syscall_mq_unlink },
+	{ .entry = &syscall_mq_timedsend },
+	{ .entry = &syscall_mq_timedreceive },
+	{ .entry = &syscall_mq_notify },
+	{ .entry = &syscall_mq_getsetattr },
+	{ .entry = &syscall_waitid },
+	{ .entry = &syscall_fadvise64_64 },
+	{ .entry = &syscall_set_tid_address },
+	{ .entry = &syscall_setxattr },
+	{ .entry = &syscall_lsetxattr },
+	{ .entry = &syscall_fsetxattr },
+	{ .entry = &syscall_getxattr },
+	{ .entry = &syscall_lgetxattr },
+	{ .entry = &syscall_fgetxattr },
+	{ .entry = &syscall_listxattr },
+	{ .entry = &syscall_llistxattr },
+	{ .entry = &syscall_flistxattr },
+	{ .entry = &syscall_removexattr },
+	{ .entry = &syscall_lremovexattr },
+	{ .entry = &syscall_fremovexattr },
+	{ .entry = &syscall_timer_create },
+	{ .entry = &syscall_timer_settime },
+	{ .entry = &syscall_timer_gettime },
+	{ .entry = &syscall_timer_getoverrun },
+	{ .entry = &syscall_timer_delete },
+	{ .entry = &syscall_clock_settime },
+	{ .entry = &syscall_clock_gettime },
+	{ .entry = &syscall_clock_getres },
+	{ .entry = &syscall_clock_nanosleep },
+	{ .entry = &syscall_tgkill },
+	{ .entry = &syscall_mbind },
+	{ .entry = &syscall_get_mempolicy },
+	{ .entry = &syscall_set_mempolicy },
+	{ .entry = &syscall_ni_syscall },	/* obsolete "vserver" syscall */
+	{ .entry = &syscall_add_key },
+	{ .entry = &syscall_request_key },
+	{ .entry = &syscall_keyctl },
+	{ .entry = &syscall_ioprio_set },
+	{ .entry = &syscall_ioprio_get },
+	{ .entry = &syscall_inotify_init },
+	{ .entry = &syscall_inotify_add_watch },
+	{ .entry = &syscall_inotify_rm_watch },
+	{ .entry = &syscall_migrate_pages },
+	{ .entry = &syscall_pselect6 },
+	{ .entry = &syscall_ppoll },
+	{ .entry = &syscall_openat },
+	{ .entry = &syscall_mkdirat },
+	{ .entry = &syscall_mknodat },
+	{ .entry = &syscall_fchownat },
+	{ .entry = &syscall_futimesat },
+	{ .entry = &syscall_fstatat64 },
+	{ .entry = &syscall_unlinkat },
+	{ .entry = &syscall_renameat },
+	{ .entry = &syscall_linkat },
+	{ .entry = &syscall_symlinkat },
+	{ .entry = &syscall_readlinkat },
+	{ .entry = &syscall_fchmodat },
+	{ .entry = &syscall_faccessat },
+	{ .entry = &syscall_unshare },
+	{ .entry = &syscall_set_robust_list },
+	{ .entry = &syscall_get_robust_list },
+	{ .entry = &syscall_splice },
+	{ .entry = &syscall_sync_file_range },
+	{ .entry = &syscall_tee },
+	{ .entry = &syscall_vmsplice },
+	{ .entry = &syscall_move_pages },
+	{ .entry = &syscall_getcpu },
+	{ .entry = &syscall_epoll_pwait },
+	{ .entry = &syscall_statfs64 },
+	{ .entry = &syscall_fstatfs64 },
+	{ .entry = &syscall_kexec_load },
+	{ .entry = &syscall_utimensat },
+	{ .entry = &syscall_signalfd },
+	{ .entry = &syscall_ni_syscall },	/* was timerfd */
+	{ .entry = &syscall_eventfd },
+	{ .entry = &syscall_fallocate },
+	{ .entry = &syscall_timerfd_create },
+	{ .entry = &syscall_timerfd_settime },
+	{ .entry = &syscall_timerfd_gettime },
+	{ .entry = &syscall_signalfd4 },
+	{ .entry = &syscall_eventfd2 },
+	{ .entry = &syscall_epoll_create1 },
+	{ .entry = &syscall_dup3 },
+	{ .entry = &syscall_pipe2 },
+	{ .entry = &syscall_inotify_init1 },
+	{ .entry = &syscall_preadv },
+	{ .entry = &syscall_pwritev },
+	{ .entry = &syscall_rt_tgsigqueueinfo },
+	{ .entry = &syscall_perf_event_open },
+	{ .entry = &syscall_recvmmsg },
+	{ .entry = &syscall_accept4 },
+	{ .entry = &syscall_prlimit64 },
+	{ .entry = &syscall_fanotify_init },
+	{ .entry = &syscall_fanotify_mark },
+	{ .entry = &syscall_clock_adjtime },
+	{ .entry = &syscall_name_to_handle_at },
+	{ .entry = &syscall_open_by_handle_at },
+	{ .entry = &syscall_syncfs },
+	{ .entry = &syscall_setns },
+	{ .entry = &syscall_sendmmsg },	/* obsolete "putpmsg" syscall */
+	{ .entry = &syscall_process_vm_readv },
+	{ .entry = &syscall_process_vm_writev },
+	{ .entry = &syscall_kcmp },
+	{ .entry = &syscall_finit_module },
+};
+
+#endif	/* _SYSCALLS_PARISC_H */
-- 
1.8.3.2


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>From 3bb732227732e7577fe3e7c37a46eb05bea63cdc Mon Sep 17 00:00:00 2001
From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Date: Tue, 22 Oct 2013 18:42:32 +0200
Subject: [PATCH 2/2] add more headers to fix compile on PA-RISC

---
 syscalls/msgrcv.c | 1 +
 syscalls/msgsnd.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/syscalls/msgrcv.c b/syscalls/msgrcv.c
index 2200472..5585b99 100644
--- a/syscalls/msgrcv.c
+++ b/syscalls/msgrcv.c
@@ -1,6 +1,7 @@
 /*
  * SYSCALL_DEFINE5(msgrcv, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz, long, msgtyp, int, msgflg)
  */
+#include <sys/types.h>
 #include <linux/msg.h>
 #include "compat.h"
 #include "sanitise.h"
diff --git a/syscalls/msgsnd.c b/syscalls/msgsnd.c
index 3e3a91d..9eaf3d6 100644
--- a/syscalls/msgsnd.c
+++ b/syscalls/msgsnd.c
@@ -1,6 +1,7 @@
 /*
  * SYSCALL_DEFINE4(msgsnd, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz, int, msgflg)
  */
+#include <sys/types.h>
 #include <linux/msg.h>
 #include "compat.h"
 #include "sanitise.h"
-- 
1.8.3.2


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From - Thu Nov 08 21:09:47 2018
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Subject: [PATCH] arch: *: remove '__init' for setup_profiling_timer()
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Most of architectures not use '__init' for setup_profiling_timer(), so
need remove it, or can generate warning (e.g. arc with allmodconfig):

    MODPOST vmlinux.o
  WARNING: vmlinux.o(.text+0x3c682): Section mismatch in reference from the function write_profile() to the function .init.text:setup_profiling_timer()
  The function write_profile() references
  the function __init setup_profiling_timer().
  This is often because write_profile lacks a __init
  annotation or the annotation of setup_profiling_timer is wrong.


Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 arch/arc/kernel/smp.c          |    2 +-
 arch/blackfin/mach-bf561/smp.c |    2 +-
 arch/parisc/kernel/smp.c       |    2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index bca3052..3bdac11 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -187,7 +187,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
 /*
  * not supported here
  */
-int __init setup_profiling_timer(unsigned int multiplier)
+int setup_profiling_timer(unsigned int multiplier)
 {
 	return -EINVAL;
 }
diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c
index 11789be..3bef058 100644
--- a/arch/blackfin/mach-bf561/smp.c
+++ b/arch/blackfin/mach-bf561/smp.c
@@ -43,7 +43,7 @@ void __init platform_prepare_cpus(unsigned int max_cpus)
 	init_cpu_present(&mask);
 }
 
-int __init setup_profiling_timer(unsigned int multiplier) /* not supported */
+int setup_profiling_timer(unsigned int multiplier) /* not supported */
 {
 	return -EINVAL;
 }
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 8a252f2..2e8cd36 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -433,7 +433,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 }
 
 #ifdef CONFIG_PROC_FS
-int __init
+int
 setup_profiling_timer(unsigned int multiplier)
 {
 	return -EINVAL;
-- 
1.7.7.6
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From - Thu Nov 08 21:09:47 2018
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Subject: [PATCH] parisc: remove duplicate define
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This patch removes a duplicate define from
arch/parisc/math-emu/float.h

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
---
 arch/parisc/math-emu/float.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/parisc/math-emu/float.h b/arch/parisc/math-emu/float.h
index ce76f6d..7a51f97 100644
--- a/arch/parisc/math-emu/float.h
+++ b/arch/parisc/math-emu/float.h
@@ -484,7 +484,6 @@ typedef int VOID;
  * |                                                     |G|L|E|U|X|
  * +-------+-------+-------+-------+-------+-------+-------+-------+
  */
-#define Allexception(object) (object)
 #define Greaterthanbit(object) Bitfield_extract( 27, 1,object)
 #define Lessthanbit(object) Bitfield_extract( 28, 1,object)
 #define Equalbit(object) Bitfield_extract( 29, 1,object)
-- 
1.8.1.2


From - Thu Nov 08 21:09:47 2018
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Subject: [PATCH] parisc: make udelay() SMP-safe
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Each CPU has it's own Control Register 16 (CR16) which is used as time source
for the udelay() function. But since the CR16 registers across different CPUs
are not synced, we need to recalculate the loop count if we get switched away
to ensure that we really delay as much time as requested.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/delay.h b/arch/parisc/include/asm/delay.h
index 912ee7e..08e58e6 100644
--- a/arch/parisc/include/asm/delay.h
+++ b/arch/parisc/include/asm/delay.h
@@ -1,15 +1,5 @@
-#ifndef _PARISC_DELAY_H
-#define _PARISC_DELAY_H
-
-#include <asm/special_insns.h>    /* for mfctl() */
-#include <asm/processor.h> /* for boot_cpu_data */
-
-
-/*
- * Copyright (C) 1993 Linus Torvalds
- *
- * Delay routines
- */
+#ifndef _ASM_PARISC_DELAY_H
+#define _ASM_PARISC_DELAY_H
 
 static __inline__ void __delay(unsigned long loops) {
 	asm volatile(
@@ -19,25 +9,14 @@ static __inline__ void __delay(unsigned long loops) {
 		: "=r" (loops) : "0" (loops));
 }
 
-static __inline__ void __cr16_delay(unsigned long clocks) {
-	unsigned long start;
-
-	/*
-	 * Note: Due to unsigned math, cr16 rollovers shouldn't be
-	 * a problem here. However, on 32 bit, we need to make sure
-	 * we don't pass in too big a value. The current default
-	 * value of MAX_UDELAY_MS should help prevent this.
-	 */
+extern void __udelay(unsigned long usecs);
+extern void __udelay_bad(unsigned long usecs);
 
-	start = mfctl(16);
-	while ((mfctl(16) - start) < clocks)
-	    ;
+static inline void udelay(unsigned long usecs)
+{
+	if (__builtin_constant_p(usecs) && (usecs) > 20000)
+		__udelay_bad(usecs);
+	__udelay(usecs);
 }
 
-static __inline__ void __udelay(unsigned long usecs) {
-	__cr16_delay(usecs * ((unsigned long)boot_cpu_data.cpu_hz / 1000000UL));
-}
-
-#define udelay(n) __udelay(n)
-
-#endif /* defined(_PARISC_DELAY_H) */
+#endif /* _ASM_PARISC_DELAY_H */
diff --git a/arch/parisc/lib/Makefile b/arch/parisc/lib/Makefile
index 5651536..8fa92b8 100644
--- a/arch/parisc/lib/Makefile
+++ b/arch/parisc/lib/Makefile
@@ -3,6 +3,6 @@
 #
 
 lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o \
-	   ucmpdi2.o
+	   ucmpdi2.o delay.o
 
 obj-y	:= iomap.o
diff --git a/arch/parisc/lib/delay.c b/arch/parisc/lib/delay.c
new file mode 100644
index 0000000..b1fb528
--- /dev/null
+++ b/arch/parisc/lib/delay.c
@@ -0,0 +1,73 @@
+/*
+ *	Precise Delay Loops for parisc
+ *
+ *	based on code by:
+ *	Copyright (C) 1993 Linus Torvalds
+ *	Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+ *	Copyright (C) 2008 Jiri Hladky <hladky _dot_ jiri _at_ gmail _dot_ com>
+ *
+ *	parisc implementation:
+ *	Copyright (C) 2013 Helge Deller <deller@gmx.de>
+ */
+
+
+#include <linux/module.h>
+#include <linux/preempt.h>
+#include <linux/init.h>
+
+#include <asm/processor.h>
+#include <asm/delay.h>
+
+#include <asm/special_insns.h>    /* for mfctl() */
+#include <asm/processor.h> /* for boot_cpu_data */
+
+/* CR16 based delay: */
+static void __cr16_delay(unsigned long __loops)
+{
+	/*
+	 * Note: Due to unsigned math, cr16 rollovers shouldn't be
+	 * a problem here. However, on 32 bit, we need to make sure
+	 * we don't pass in too big a value. The current default
+	 * value of MAX_UDELAY_MS should help prevent this.
+	 */
+	u32 bclock, now, loops = __loops;
+	int cpu;
+
+	preempt_disable();
+	cpu = smp_processor_id();
+	bclock = mfctl(16);
+	for (;;) {
+		now = mfctl(16);
+		if ((now - bclock) >= loops)
+			break;
+
+		/* Allow RT tasks to run */
+		preempt_enable();
+		asm volatile("	nop\n");
+		barrier();
+		preempt_disable();
+
+		/*
+		 * It is possible that we moved to another CPU, and
+		 * since CR16's are per-cpu we need to calculate
+		 * that. The delay must guarantee that we wait "at
+		 * least" the amount of time. Being moved to another
+		 * CPU could make the wait longer but we just need to
+		 * make sure we waited long enough. Rebalance the
+		 * counter for this CPU.
+		 */
+		if (unlikely(cpu != smp_processor_id())) {
+			loops -= (now - bclock);
+			cpu = smp_processor_id();
+			bclock = mfctl(16);
+		}
+	}
+	preempt_enable();
+}
+
+
+void __udelay(unsigned long usecs)
+{
+	__cr16_delay(usecs * ((unsigned long)boot_cpu_data.cpu_hz / 1000000UL));
+}
+EXPORT_SYMBOL(__udelay);
--
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From - Thu Nov 08 21:09:47 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: correctly display number of active CPUs
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	James Bottomley <James.Bottomley@HansenPartnership.com>,
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In case we fail to power up other CPUs in a SMP system, the kernel
currently shows a wrong number of online CPUs. This change makes the
output more verbose on how many of the CPUs are online. Example:

CPU(s): 1 out of 2 PA8800 (Mako) at 900.000000 MHz online.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 7349a3f..16a1fb9 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -318,8 +318,8 @@ static int __init parisc_init(void)
 	pdc_stable_write(0x40, &osid, sizeof(osid));
 	
 	processor_init();
-	printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
-			num_present_cpus(),
+	pr_info("CPU(s): %d out of %d %s at %d.%06d MHz online.\n",
+			num_online_cpus(), num_present_cpus(),
 			boot_cpu_data.cpu_name,
 			boot_cpu_data.cpu_hz / 1000000,
 			boot_cpu_data.cpu_hz % 1000000	);
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: Reproducible kernel panic using gcc
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Hi PA hackers,


Using a simple test program, I'm able to panic the kernel using gdb.

I've attached the test program. The output from the console is the 
following :

Bad Address (null pointer deref?): Code=6 regs=000000007e354370 
(Addr=0000000000000000)
CPU: 0 PID: 1605 Comm: gdb-crash Not tainted 3.10.6 #1
task: 000000007e354038 ti: 000000007e33c000 task.ti: 000000007e33c000

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111000001111 Not tainted
r00-03  000000ff0006fe0f 0000000000000000 0000000000000000 
00000000faf02300
r04-07  00000000406d3b30 0000000000000000 00000000000c8e98 
00000000000c7a80
r08-11  00000000000c8e70 00000000000c8e70 000000000000006c 
0000000000000061
r12-15  00000000000c3100 0000000000000000 00000000000bf100 
00000000000c0900
r16-19  0000000000000000 00000000000c0900 000000000009f000 
0000000000000000
r20-23  0000000000010638 0000000000000000 0000000000010638 
00000000406d11b8
r24-27  00000000faf02034 00000000faf0202c 0000000000000000 
00000000000110e4
r28-31  00000000faf0230c 0000000000000001 0000000000000000 
0000000040143327
sr00-03  0000000000334000 0000000000334000 0000000000000000 
0000000000334000
sr04-07  0000000000334000 0000000000334000 0000000000334000 
0000000000334000

IASQ: 0000000000334000 0000000000334000 IAOQ: 0000000000000000 
0000000000000004
  IIR: 43ffff80    ISR: 0000000010240000  IOR: 000000f400b02308
  CPU:        0   CR30: 000000007e33c000 CR31: fe1eec3fc1ecdbed
  ORIG_R28: 0000000000000000
  IAOQ[0]:           (null)
  IAOQ[1]: 0x4
  RP(r2):           (null)
Backtrace:


There is no info from PIM.


Thanks,
   Guy
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> Using a simple test program, I'm able to panic the kernel using gdb.
> 
> I've attached the test program. The output from the console is the 
> following :
> 
> Bad Address (null pointer deref?): Code=6 regs=000000007e354370 
> (Addr=0000000000000000)

Works without crash for me on 3.12-rc6 ?
Linux ls3011 3.12.0-rc6-64bit+

Since you run 3.10.6, maybe updating the kernel might help.
Esp. this patch, which has been backported to kernel 3.10 (and is in 3.10.17):
http://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-3.10.y&id=77587e89405f5d8225a0e750df254bcc2dcb73e1

Helge
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From: Rolf Eike Beer <eike@sf-mail.de>
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Subject: Short notice: ipmi_si kills C8000
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I did "modprobe ipmi_si" on my C8000 (kernel 3.11.6), which immediately=
 broke=20
the machine. I have no backtrace yet, but I'll try to get one next week=
. In=20
case someone has such a machine and the mood to debug this already=E2=80=
=A6 ;)

Eike
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From: Jeroen Roovers <jer@gentoo.org>
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On Sat, 26 Oct 2013 16:26:03 +0200
Rolf Eike Beer <eike@sf-mail.de> wrote:

> I did "modprobe ipmi_si" on my C8000 (kernel 3.11.6), which
> immediately broke the machine. I have no backtrace yet, but I'll try
> to get one next week. In case someone has such a machine and the mood
> to debug this already=E2=80=A6 ;)

[  730.964000] ipmi message handler version 39.2
[  731.092000] IPMI System Interface driver.
[  731.148000] ipmi_si: Adding default-specified kcs state
machine[  731.224000] ipmi_si: Trying default-specified kcs state
machine at i/o address 0xca2, slave address 0x0, irq 0 <Cpu0>
e800009800e00000  000000004042ab9c  CC_ERR_CHECK_HPMC <Cpu0>
37000f7300e00000  8040004000000000  CC_ERR_CPU_CHECK_SUMMARY <Cpu0>
f600105e00e00000  fffffff0f0c00000  CC_MC_HPMC_MONARCH_SELECTED <Cpu0>
140003b200e00000  000000000000000b  CC_ERR_HPMC_STATE_ENTRY <Cpu0>
5600100b00e00000  0000000000000194  CC_MC_OS_HPMC_LEN_ERR <Cpu0>
5600106400e00000  fffffff0f0435110  CC_MC_BR_TO_OS_HPMC_FAILED <Cpu0>
e800009800e00000  000000004042ab9c  CC_ERR_CHECK_HPMC <Cpu0>
37000f7300e00000  8040004000000000  CC_ERR_CPU_CHECK_SUMMARY <Cpu0>
4000109f00e00000  0000000000000000  CC_MC_HPMC_INITIATED <Cpu0>
4000101900e00000  0000000000000000  CC_MC_MULTIPLE_HPMCS <Cpu0>
030010d500e00000  0000000000000000  CC_CPU_STOP

Confirmed.


     jer
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Do not crash 64bit SMP kernels on machines with >=
 4GB RAM
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Since the beginning of the parisc-linux port, sometimes 64bit SMP kernels were
not able to bring up other CPUs than the monarch CPU and instead crashed the
kernel.  The reason was unclear, esp. since it involved various machines (e.g.
J5600, J6750 and SuperDome). Testing showed, that those crashes didn't happened
when less than 4GB were installed, or if a 32bit Linux kernel was booted.

In the end, the fix for those SMP problems is trivial:
During the early phase of the initialization of the CPUs, including the monarch
CPU, the PDC_PSW firmware function to enable WIDE (=64bit) mode is called.
It's documented that this firmware function may clobber various registers, and
one one of those possibly clobbered registers is %cr30 which holds the task
thread info pointer.

Now, if %cr30 would always have been clobbered, then this bug would have been
detected much earlier. But lots of testing finally showed, that - at least for
%cr30 - on some machines only the upper 32bits of the 64bit register suddenly 
turned zero after the firmware call.

So, after finding the root cause, the explanation for the various crashes
became clear:
- On 32bit SMP Linux kernels all upper 32bit were zero, so we didn't faced this
  problem.
- Monarch CPUs in 64bit mode always booted sucessfully, because the inital task
  thread info pointer was below 4GB.
- Secondary CPUs booted sucessfully on machines with less than 4GB RAM because
  the upper 32bit were zero anyay.
- Secondary CPus failed to boot if we had more than 4GB RAM and the task thread
  info pointer was located above the 4GB boundary.

Finally, the patch to fix this problem is trivial by saving the %cr30 register
before the firmware call and restore it afterwards.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: <stable@vger.kernel.org> # 2.6.12+


diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index 37aabd7..d2d5825 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -195,6 +195,8 @@ common_stext:
 	ldw             MEM_PDC_HI(%r0),%r6
 	depd            %r6, 31, 32, %r3        /* move to upper word */
 
+	mfctl		%cr30,%r6		/* PCX-W2 firmware bug */
+
 	ldo             PDC_PSW(%r0),%arg0              /* 21 */
 	ldo             PDC_PSW_SET_DEFAULTS(%r0),%arg1 /* 2 */
 	ldo             PDC_PSW_WIDE_BIT(%r0),%arg2     /* 2 */
@@ -203,6 +205,8 @@ common_stext:
 	copy            %r0,%arg3
 
 stext_pdc_ret:
+	mtctl		%r6,%cr30		/* restore task thread info */
+
 	/* restore rfi target address*/
 	ldd             TI_TASK-THREAD_SZ_ALGN(%sp), %r10
 	tophys_r1       %r10
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HP J5600/J6750 64bit SMP CPU#1 stuck problems [was: Does there
 exists any 32bit-only PARISC SMP machines?]
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Cc: Dave Land <xmechanic@landcomp.net>
To: John David Anglin <dave.anglin@bell.net>,
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	Domenico Andreoli <cavokz@gmail.com>
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On 10/21/2013 10:39 PM, Helge Deller wrote:
>>> On 09/04/2013 04:28 PM, Domenico Andreoli wrote:
>>>>>>> J5600 is SMP capable in both 32bit and 64bit mode.
>>>>>>> mine doesn't boot 64bit SMP since 2.6.22. I've never been able to trace
>>>>>>> it down but can confirm it happens also on more recent kernels.
>>>>> I confirm that smp parisc64 v3.11 doesn't bring up both the cpus on my
>>>>> system but at least it boots one, something that didn't happen in some
>>>>> darker moments since 2.6.22.
>>>>>
>>>>> similar "SMP: CPU:1 is stuck." happens also with debian v3.10-parisc64-smp kernel.
>>>> BTW, this is the most detailed investigation I'm aware of:
>>>> https://lkml.org/lkml/2008/4/20/251

I think we finally found the reason and a fix for the "CPU:1 is stuck" problem :-)

See the patch I've just sent to the mailing list:
[PATCH] parisc: Do not crash 64bit SMP kernels on machines with >= 4GB RAM
https://patchwork.kernel.org/patch/3099061/

It would be nice if those people who had problems could verify if this fixes it.
At least on the J6750 from Dave Land I was now able to successfully boot the 64bit SMP kernel.

I think this should even fix the SuperDome SMP problem - if someone can test? 

If you might be too lazy to build yourself a kernel, just try my 3.10.17-based installer image:
http://ftp.parisc-linux.org/debian-ports/unstable-boot-image/lifimage
To select the 64bit kernel at boot, choose in IPL "0/vmlinux64" as kernel image.
Usually palo would otherwise choose the 32bit kernel...

In case you want to run a full installation, the instructions are available at 
http://wiki.parisc-linux.org/Debian_Ports_Installation

Helge
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From - Thu Nov 08 21:09:48 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: do not count IPI calls twice
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The number of IPI calls is already visible as per-cpu IPI irq counters
in/proc/cpuinfo, so let's drop this additional counting.
This partly reverts:
cd85d55 parisc: more irq statistics in /proc/interrupts

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index 241c345..9b3bd03 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -21,7 +21,6 @@ typedef struct {
 	unsigned int irq_stack_usage;
 #ifdef CONFIG_SMP
 	unsigned int irq_resched_count;
-	unsigned int irq_call_count;
 #endif
 	unsigned int irq_unaligned_count;
 	unsigned int irq_fpassist_count;
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 2e6443b..501ac8b 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -179,10 +179,6 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_resched_count);
 	seq_puts(p, "  Rescheduling interrupts\n");
-	seq_printf(p, "%*s: ", prec, "CAL");
-	for_each_online_cpu(j)
-		seq_printf(p, "%10u ", irq_stats(j)->irq_call_count);
-	seq_puts(p, "  Function call interrupts\n");
 #endif
 	seq_printf(p, "%*s: ", prec, "UAH");
 	for_each_online_cpu(j)
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 2b96602..ceda229 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -125,11 +125,6 @@ ipi_interrupt(int irq, void *dev_id)
 	unsigned long ops;
 	unsigned long flags;
 
-	/* Count this now; we may make a call that never returns. */
-	inc_irq_stat(irq_call_count);
-
-	mb();	/* Order interrupt and bit testing. */

From - Thu Nov 08 21:09:48 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc fix for v3.12
Date: Sun, 27 Oct 2013 16:53:40 +0100
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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	James Bottomley <James.Bottomley@HansenPartnership.com>,
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Hi Linus,

Please pull the one important fix for the parisc architecture from

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.12

This is a 2-line patch to save the CPU register which holds our task thread
info pointer before calling a firmware function and then to restore it again
afterwards. This is necessary because on some 64bit machines the high-order
32bits are being clobbered by the firmware call, and thus we failed to bring up
secondary CPUs (and instead crashed the kernel) in some situations e.g. if we
had more than 4GB RAM.  This patch fixes a bug which has been since ever in the
parisc linux kernel and which prevented some people to use a 64bit kernel.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (1):
      parisc: Do not crash 64bit SMP kernels on machines with >= 4GB RAM

 arch/parisc/kernel/head.S | 4 ++++
 1 file changed, 4 insertions(+)
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From - Thu Nov 08 21:09:48 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Aw: Reproducible kernel panic using gdb
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Hi Helge,

> 
> Works without crash for me on 3.12-rc6 ?
> Linux ls3011 3.12.0-rc6-64bit+
> 
> Since you run 3.10.6, maybe updating the kernel might help.
> Esp. this patch, which has been backported to kernel 3.10 (and is in 
> 3.10.17):
> http://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-3.10.y&id=77587e89405f5d8225a0e750df254bcc2dcb73e1

Still the same problem with 3.12-rc6 here :

Output from the kernel :

terminator ~ # dmesg -n 8
terminator ~ # Backtrace:


Bad Address (null pointer deref?): Code=6 regs=000000007f41d3b0 
(Addr=0000000000000000)
CPU: 0 PID: 1536 Comm: gdb-crash Not tainted 3.12.0-rc6 #1
task: 000000007f41d038 ti: 000000413eb00000 task.ti: 000000413eb00000

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111000001111 Not tainted
r00-03  000000ff0006fe0f 0000000000000000 0000000000000000 
00000000faf02300
r04-07  0000000040a53b30 0000000000000000 00000000000c8e98 
00000000000c7a80
r08-11  00000000000c8e70 00000000000c8e70 000000000000006c 
0000000000000061
r12-15  00000000000c3100 0000000000000000 00000000000bf100 
00000000000c0900
r16-19  0000000000000000 00000000000c0900 000000000009f000 
0000000000000000
r20-23  0000000000010638 0000000000000000 0000000000010638 
0000000040a511b8
r24-27  00000000faf02034 00000000faf0202c 0000000000000000 
00000000000110e4
r28-31  00000000faf0230c 0000000000000001 0000000000000000 
0000000040403327
sr00-03  00000000002fc800 00000000002fc800 0000000000000000 
00000000002fc800
sr04-07  00000000002fc800 00000000002fc800 00000000002fc800 
00000000002fc800

IASQ: 00000000002fc800 00000000002fc800 IAOQ: 0000000000000000 
0000000000000004
  IIR: 43ffff80    ISR: 0000000010250000  IOR: 000003f7a5b02308
  CPU:        0   CR30: 000000413eb00000 CR31: fe1eec3fc1ecdbed
  ORIG_R28: 0000000000000000
  IAOQ[0]:           (null)
  IAOQ[1]: 0x4
  RP(r2):           (null)
Backtrace:

Kernel panic - not syncing: Bad Address (null pointer deref?)
Rebooting in 5 seconds..



Output from gdb :
(gdb) break gdb-crash.c:24
Breakpoint 1 at 0x10660: file gdb-crash.c, line 24.
(gdb) run
Starting program: /root/gdb-crash

Breakpoint 1, main () at gdb-crash.c:25
25              printf("Test is %u, %u\n", tv.a, tv.b);
(gdb) set tp = { 0,0}



Regards,
   Guy


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From - Thu Nov 08 21:09:48 2018
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: Short notice: ipmi_si kills C8000
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On Sat, Oct 26, 2013 at 07:17:20PM +0200, Jeroen Roovers wrote:
> > I did "modprobe ipmi_si" on my C8000 (kernel 3.11.6), which
> > immediately broke the machine. I have no backtrace yet, but I'll try
> > to get one next week. In case someone has such a machine and the mood
> > to debug this already??? ;)
> 
> [  730.964000] ipmi message handler version 39.2
> [  731.092000] IPMI System Interface driver.
> [  731.148000] ipmi_si: Adding default-specified kcs state
> machine[  731.224000] ipmi_si: Trying default-specified kcs state
> machine at i/o address 0xca2, slave address 0x0, irq 0 <Cpu0>

looks like stupid ISA auto probing is turned on, when ipmi is loaded
as a module :-( I'll have a look.

Thomas.

-- 
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Mon, 2013-10-28 at 10:00 +0100, Guy Martin wrote:
> Hi Helge,
> 
> > 
> > Works without crash for me on 3.12-rc6 ?
> > Linux ls3011 3.12.0-rc6-64bit+
> > 
> > Since you run 3.10.6, maybe updating the kernel might help.
> > Esp. this patch, which has been backported to kernel 3.10 (and is in 
> > 3.10.17):
> > http://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-3.10.y&id=77587e89405f5d8225a0e750df254bcc2dcb73e1
> 
> Still the same problem with 3.12-rc6 here :

What system and CPU?

Thanks,

James


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James Bottomley: wrote
> On Mon, 2013-10-28 at 10:00 +0100, Guy Martin wrote:
>> Hi Helge,
>> 
>> >
>> > Works without crash for me on 3.12-rc6 ?
>> > Linux ls3011 3.12.0-rc6-64bit+
>> >
>> > Since you run 3.10.6, maybe updating the kernel might help.
>> > Esp. this patch, which has been backported to kernel 3.10 (and is in
>> > 3.10.17):
>> > http://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-3.10.y&id=77587e89405f5d8225a0e750df254bcc2dcb73e1
>> 
>> Still the same problem with 3.12-rc6 here :
> 
> What system and CPU?

C8000

Eike (acting as IRC2Mail gateway)
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On Mon, 2013-10-28 at 16:08 +0100, Rolf Eike Beer wrote:
> James Bottomley: wrote
> > On Mon, 2013-10-28 at 10:00 +0100, Guy Martin wrote:
> >> Hi Helge,
> >> 
> >> >
> >> > Works without crash for me on 3.12-rc6 ?
> >> > Linux ls3011 3.12.0-rc6-64bit+
> >> >
> >> > Since you run 3.10.6, maybe updating the kernel might help.
> >> > Esp. this patch, which has been backported to kernel 3.10 (and is in
> >> > 3.10.17):
> >> > http://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-3.10.y&id=77587e89405f5d8225a0e750df254bcc2dcb73e1
> >> 
> >> Still the same problem with 3.12-rc6 here :
> > 
> > What system and CPU?
> 
> C8000

I tried this on a rp3440  (pa8800) and I can't reproduce.  I think it
might be something about the way the kernel is compiled.  The (null)
values for rp2 and IOAQ[0] look suspicious.

James



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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: Short notice: ipmi_si kills C8000
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To: Jeroen Roovers <jer@gentoo.org>
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On Mon, Oct 28, 2013 at 11:56:12AM +0100, Thomas Bogendoerfer wrote:
> On Sat, Oct 26, 2013 at 07:17:20PM +0200, Jeroen Roovers wrote:
> > > I did "modprobe ipmi_si" on my C8000 (kernel 3.11.6), which
> > > immediately broke the machine. I have no backtrace yet, but I'll try
> > > to get one next week. In case someone has such a machine and the mood
> > > to debug this already??? ;)
> > 
> > [  730.964000] ipmi message handler version 39.2
> > [  731.092000] IPMI System Interface driver.
> > [  731.148000] ipmi_si: Adding default-specified kcs state
> > machine[  731.224000] ipmi_si: Trying default-specified kcs state
> > machine at i/o address 0xca2, slave address 0x0, irq 0 <Cpu0>
> 
> looks like stupid ISA auto probing is turned on, when ipmi is loaded
> as a module :-( I'll have a look.

my patch went into 3.12-rc1 so it's expected that 3.11.6 crashes without it.

Thomas.

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Am 29.10.2013 10:37, schrieb Thomas Bogendoerfer:
> On Mon, Oct 28, 2013 at 11:56:12AM +0100, Thomas Bogendoerfer wrote:
>> On Sat, Oct 26, 2013 at 07:17:20PM +0200, Jeroen Roovers wrote:
>> > > I did "modprobe ipmi_si" on my C8000 (kernel 3.11.6), which
>> > > immediately broke the machine. I have no backtrace yet, but I'll try
>> > > to get one next week. In case someone has such a machine and the mood
>> > > to debug this already??? ;)
>> >
>> > [  730.964000] ipmi message handler version 39.2
>> > [  731.092000] IPMI System Interface driver.
>> > [  731.148000] ipmi_si: Adding default-specified kcs state
>> > machine[  731.224000] ipmi_si: Trying default-specified kcs state
>> > machine at i/o address 0xca2, slave address 0x0, irq 0 <Cpu0>
>> 
>> looks like stupid ISA auto probing is turned on, when ipmi is loaded
>> as a module :-( I'll have a look.
> 
> my patch went into 3.12-rc1 so it's expected that 3.11.6 crashes 
> without it.

Oops, sorry, I misread the git log. I've now applied that patch to 
3.11.6 and the module loads fine. Am I supposed to see anything in the 
sysfs that I can query now?

Eike
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From: Domenico Andreoli <cavokz@gmail.com>
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Subject: Re: HP J5600/J6750 64bit SMP CPU#1 stuck problems [was: Does there
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On Sun, Oct 27, 2013 at 12:06:55AM +0200, Helge Deller wrote:
> On 10/21/2013 10:39 PM, Helge Deller wrote:
> >>> On 09/04/2013 04:28 PM, Domenico Andreoli wrote:
> >>>>>>> J5600 is SMP capable in both 32bit and 64bit mode.
> >>>>>>> mine doesn't boot 64bit SMP since 2.6.22. I've never been able to trace
> >>>>>>> it down but can confirm it happens also on more recent kernels.
> >>>>> I confirm that smp parisc64 v3.11 doesn't bring up both the cpus on my
> >>>>> system but at least it boots one, something that didn't happen in some
> >>>>> darker moments since 2.6.22.
> >>>>>
> >>>>> similar "SMP: CPU:1 is stuck." happens also with debian v3.10-parisc64-smp kernel.
> >>>> BTW, this is the most detailed investigation I'm aware of:
> >>>> https://lkml.org/lkml/2008/4/20/251
> 
> I think we finally found the reason and a fix for the "CPU:1 is stuck" problem :-)

aaaand yes!

> See the patch I've just sent to the mailing list:
> [PATCH] parisc: Do not crash 64bit SMP kernels on machines with >= 4GB RAM
> https://patchwork.kernel.org/patch/3099061/

mine has (and always had) exactly 4GB

> It would be nice if those people who had problems could verify if this fixes it.
> At least on the J6750 from Dave Land I was now able to successfully boot the 64bit SMP kernel.

this fixes the issue for me

> If you might be too lazy to build yourself a kernel, just try my 3.10.17-based installer image:
> http://ftp.parisc-linux.org/debian-ports/unstable-boot-image/lifimage

I've built a shiny v3.12-rc7 parisc64.

Can't belive I'll get rid of those old 2.6.22 images and symlinks after all these years...

Many thanks.

Regards,
Domenico
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On Tue, Oct 29, 2013 at 11:41:08AM +0100, Rolf Eike Beer wrote:
> Oops, sorry, I misread the git log. I've now applied that patch to

no problem, maybe it's worth to send the fix to stable now it's
in 3.12

> 3.11.6 and the module loads fine. Am I supposed to see anything in
> the sysfs that I can query now?

I've played only with ipmitool, which gives something like

c8000:~# ipmitool sdr
Systemboard      | 30 degrees C      | ok
CPU 1            | 43 degrees C      | ok
Ambient          | 24.50 degrees C   | ok
Main +12V        | 12.25 Volts       | ok
Main -12V        | -12.45 Volts      | ok
Main +5V         | 5.00 Volts        | ok
Main 3.3V        | 3.35 Volts        | ok
Battery +3V      | 3.11 Volts        | ok
Stdby +3.3V      | 3.40 Volts        | ok
Main +1.5V       | 1.49 Volts        | ok
VTT              | 1.19 Volts        | ok
Main +1.8V       | 1.80 Volts        | ok
FAN1 SYS         | 6360 RPM          | ok
FAN2 SYS         | 6240 RPM          | ok
FAN3 SYS         | 6000 RPM          | ok
FAN4 SYS         | 6240 RPM          | ok
FAN5 SYS         | 5880 RPM          | ok
FAN1 PSU         | 2400 RPM          | ok
FAN2 PSU         | 2400 RPM          | ok
SEL Level        | 0 unspecified     | ok
CPU 1            | 0x80              | ok
PSU              | Not Readable      | ns
PS1              | 0x02              | ok
FAN1 SYS         | 0x01              | ok
FAN2 SYS         | 0x01              | ok
FAN3 SYS         | 0x01              | ok
FAN4 SYS         | 0x01              | ok
FAN5 SYS         | 0x01              | ok
FAN1 PSU         | 0x01              | ok
FAN2 PSU         | 0x01              | ok
Watchdog         | 0x00              | ok
iRMC request     | 0x00              | ok
System Mgmt SW   | Not Readable      | ns
local Mon.       | 0x02              | ok
Pwr Btn override | 0x01              | ok
Software NMI     | 0x00              | ok
System BIOS      | Not Readable      | ns
iRMC             | Not Readable      | ns


Thomas.


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On Tue, 29 Oct 2013 17:41:51 +0100
Thomas Bogendoerfer <tsbogend@alpha.franken.de> wrote:

> I've played only with ipmitool, which gives something like
> 
> c8000:~# ipmitool sdr
> Systemboard      | 30 degrees C      | ok
> CPU 1            | 43 degrees C      | ok

Yes, that works nicely here, too (in 3.12 rc6).


     jer
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On 10/29/2013 05:41 PM, Thomas Bogendoerfer wrote:
> On Tue, Oct 29, 2013 at 11:41:08AM +0100, Rolf Eike Beer wrote:
>> Oops, sorry, I misread the git log. I've now applied that patch to
> 
> no problem, maybe it's worth to send the fix to stable now it's
> in 3.12

Yes, I think it really makes sense to send this patch to stable kernel series.
Without this patch, any parisc box (ok - probably only the C8000) crashes
as soon as the ipmi driver is loaded.

Will you ask (e.g. if possible for kernel 3.0 and higher - not sure if it applies)? 

Helge
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On 10/29/2013 06:06 AM, James Bottomley wrote:
> 
> On Mon, 2013-10-28 at 16:08 +0100, Rolf Eike Beer wrote:
>> James Bottomley: wrote
>>> On Mon, 2013-10-28 at 10:00 +0100, Guy Martin wrote:
>>>> Hi Helge,
>>>>
>>>>>
>>>>> Works without crash for me on 3.12-rc6 ?
>>>>> Linux ls3011 3.12.0-rc6-64bit+
>>>>>
>>>>> Since you run 3.10.6, maybe updating the kernel might help.
>>>>> Esp. this patch, which has been backported to kernel 3.10 (and is in
>>>>> 3.10.17):
>>>>> http://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-3.10.y&id=77587e89405f5d8225a0e750df254bcc2dcb73e1
>>>>
>>>> Still the same problem with 3.12-rc6 here :
>>>
>>> What system and CPU?
>>
>> C8000
> 
> I tried this on a rp3440  (pa8800) and I can't reproduce.  I think it
> might be something about the way the kernel is compiled.  The (null)
> values for rp2 and IOAQ[0] look suspicious.

I tried it again, but this time on my c8000..
Again, it does not crash for me.
Kernel is 3.12.0-rc7-64bit.

I think James is right. Might be something with your compiler, but it would
be interesting what it is...

Helge
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From - Thu Nov 08 21:09:49 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: check hardcoded value of SHMLBA against value
 reported by firmware
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Our value of SHMLBA is hardcoded to 4MB on parisc due to aliasing restrictions
of the platform. The firmware function PDC_CACHE does return the machine
dependend value of this aliasing requirement.
So, if there is a difference between those two - which we don't expect - let's
report it at least.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index c035673..3523e20 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -142,6 +142,15 @@ parisc_cache_init(void)
 	if (pdc_cache_info(&cache_info) < 0)
 		panic("parisc_cache_init: pdc_cache_info failed");
 
+	/*
+	 * The alias field returned by PDC_CACHE specifies the aliasing
+	 * boundaries for virtual addresses.  So, let's verify if our hardcoded
+	 * value of SHMLBA (4 MB) is correct for this machine.
+	 */
+	if ((4096UL << (cache_info.dc_conf.cc_alias-1)) != SHMLBA)
+		pr_warn("WARNING: PDC_CACHE returns aliasing of %lu kB.\n",
+			(4UL << (cache_info.dc_conf.cc_alias-1)));
+
 #if 0
 	printk("ic_size %lx dc_size %lx it_size %lx\n",
 		cache_info.ic_size,
--
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From - Thu Nov 08 21:09:49 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: check hardcoded value of SHMLBA against value
 reported by firmware
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I seem to recall the aliasing boundary value returned by my rp3440 is 
"unknown".

On 10/29/2013 5:05 PM, Helge Deller wrote:
> Our value of SHMLBA is hardcoded to 4MB on parisc due to aliasing restrictions
> of the platform. The firmware function PDC_CACHE does return the machine
> dependend value of this aliasing requirement.
> So, if there is a difference between those two - which we don't expect - let's
> report it at least.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
> index c035673..3523e20 100644
> --- a/arch/parisc/kernel/cache.c
> +++ b/arch/parisc/kernel/cache.c
> @@ -142,6 +142,15 @@ parisc_cache_init(void)
>   	if (pdc_cache_info(&cache_info) < 0)
>   		panic("parisc_cache_init: pdc_cache_info failed");
>   
> +	/*
> +	 * The alias field returned by PDC_CACHE specifies the aliasing
> +	 * boundaries for virtual addresses.  So, let's verify if our hardcoded
> +	 * value of SHMLBA (4 MB) is correct for this machine.
> +	 */
> +	if ((4096UL << (cache_info.dc_conf.cc_alias-1)) != SHMLBA)
> +		pr_warn("WARNING: PDC_CACHE returns aliasing of %lu kB.\n",
> +			(4UL << (cache_info.dc_conf.cc_alias-1)));
> +
>   #if 0
>   	printk("ic_size %lx dc_size %lx it_size %lx\n",
>   		cache_info.ic_size,
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
>


-- 
John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:09:49 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: check hardcoded value of SHMLBA against value
 reported by firmware
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On 10/29/2013 10:10 PM, John David Anglin wrote:
> I seem to recall the aliasing boundary value returned by my rp3440 is "unknown".

Even better, then it would be interesting to see what this patch reports on
your machine....


> 
> On 10/29/2013 5:05 PM, Helge Deller wrote:
>> Our value of SHMLBA is hardcoded to 4MB on parisc due to aliasing restrictions
>> of the platform. The firmware function PDC_CACHE does return the machine
>> dependend value of this aliasing requirement.
>> So, if there is a difference between those two - which we don't expect - let's
>> report it at least.
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
>> index c035673..3523e20 100644
>> --- a/arch/parisc/kernel/cache.c
>> +++ b/arch/parisc/kernel/cache.c
>> @@ -142,6 +142,15 @@ parisc_cache_init(void)
>>       if (pdc_cache_info(&cache_info) < 0)
>>           panic("parisc_cache_init: pdc_cache_info failed");
>>   +    /*
>> +     * The alias field returned by PDC_CACHE specifies the aliasing
>> +     * boundaries for virtual addresses.  So, let's verify if our hardcoded
>> +     * value of SHMLBA (4 MB) is correct for this machine.
>> +     */
>> +    if ((4096UL << (cache_info.dc_conf.cc_alias-1)) != SHMLBA)
>> +        pr_warn("WARNING: PDC_CACHE returns aliasing of %lu kB.\n",
>> +            (4UL << (cache_info.dc_conf.cc_alias-1)));
>> +
>>   #if 0
>>       printk("ic_size %lx dc_size %lx it_size %lx\n",
>>           cache_info.ic_size,
>> -- 
>> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
>>
> 
> 

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From - Thu Nov 08 21:09:49 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH] parisc: check hardcoded value of SHMLBA against value
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On Tue, 2013-10-29 at 22:05 +0100, Helge Deller wrote:
> Our value of SHMLBA is hardcoded to 4MB on parisc due to aliasing restrictions
> of the platform. The firmware function PDC_CACHE does return the machine
> dependend value of this aliasing requirement.
> So, if there is a difference between those two - which we don't expect - let's
> report it at least.

We know that architecturally it's defined to be 16MB.  However, we also
know from the chip architects that the greatest stride ever done or
planned was 4MB, which is why we use it.  HPUX does the same, so there's
not much point issuing a warning, because it's likely that IODC isn't
setting up the values correctly and there's nothing a warning will
achieve except worrying the users if they bother to read it.

James


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From - Thu Nov 08 21:09:49 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: check hardcoded value of SHMLBA against value
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On 10/29/2013 10:26 PM, James Bottomley wrote:
> On Tue, 2013-10-29 at 22:05 +0100, Helge Deller wrote:
>> Our value of SHMLBA is hardcoded to 4MB on parisc due to aliasing restrictions
>> of the platform. The firmware function PDC_CACHE does return the machine
>> dependend value of this aliasing requirement.
>> So, if there is a difference between those two - which we don't expect - let's
>> report it at least.
> 
> We know that architecturally it's defined to be 16MB.  However, we also
> know from the chip architects that the greatest stride ever done or
> planned was 4MB, which is why we use it.  HPUX does the same, so there's
> not much point issuing a warning, because it's likely that IODC isn't
> setting up the values correctly and there's nothing a warning will
> achieve except worrying the users if they bother to read it.

Ok, thanks for this info.
I'll drop that patch.

Helge

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Subject: Re: [PATCH] arch: *: remove '__init' for setup_profiling_timer()
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On 10/23/2013 07:36 AM, Chen Gang wrote:
> Most of architectures not use '__init' for setup_profiling_timer(), so
> need remove it, or can generate warning (e.g. arc with allmodconfig):
>
>     MODPOST vmlinux.o
>   WARNING: vmlinux.o(.text+0x3c682): Section mismatch in reference from the function write_profile() to the function .init.text:setup_profiling_timer()
>   The function write_profile() references
>   the function __init setup_profiling_timer().
>   This is often because write_profile lacks a __init
>   annotation or the annotation of setup_profiling_timer is wrong.
>
>
> Signed-off-by: Chen Gang <gang.chen@asianux.com>
> ---
>  arch/arc/kernel/smp.c          |    2 +-
>  arch/blackfin/mach-bf561/smp.c |    2 +-
>  arch/parisc/kernel/smp.c       |    2 +-
>  3 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
> index bca3052..3bdac11 100644
> --- a/arch/arc/kernel/smp.c
> +++ b/arch/arc/kernel/smp.c
> @@ -187,7 +187,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
>  /*
>   * not supported here
>   */
> -int __init setup_profiling_timer(unsigned int multiplier)
> +int setup_profiling_timer(unsigned int multiplier)
>  {
>  	return -EINVAL;
>  }
> diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c
> index 11789be..3bef058 100644
> --- a/arch/blackfin/mach-bf561/smp.c
> +++ b/arch/blackfin/mach-bf561/smp.c
> @@ -43,7 +43,7 @@ void __init platform_prepare_cpus(unsigned int max_cpus)
>  	init_cpu_present(&mask);
>  }
>  
> -int __init setup_profiling_timer(unsigned int multiplier) /* not supported */
> +int setup_profiling_timer(unsigned int multiplier) /* not supported */
>  {
>  	return -EINVAL;
>  }
> diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
> index 8a252f2..2e8cd36 100644
> --- a/arch/parisc/kernel/smp.c
> +++ b/arch/parisc/kernel/smp.c
> @@ -433,7 +433,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
>  }
>  
>  #ifdef CONFIG_PROC_FS
> -int __init
> +int
>  setup_profiling_timer(unsigned int multiplier)
>  {
>  	return -EINVAL;

In theory this change is OK. However this is legacy code at best and it would be
better to define a weak definition in kernel/profile.c and remove this cruft from
relevant arches. I'll send out a patch.

-Vineet
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From - Thu Nov 08 21:09:49 2018
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.hardware.blackfin.kernel.devel,gmane.linux.ports.parisc
Subject: Re: [PATCH] arch: *: remove '__init' for setup_profiling_timer()
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To: Vineet Gupta <Vineet.Gupta1@synopsys.com>
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On 10/31/2013 01:45 PM, Vineet Gupta wrote:
> On 10/23/2013 07:36 AM, Chen Gang wrote:
>> Most of architectures not use '__init' for setup_profiling_timer(), so
>> need remove it, or can generate warning (e.g. arc with allmodconfig):
>>
>>     MODPOST vmlinux.o
>>   WARNING: vmlinux.o(.text+0x3c682): Section mismatch in reference from the function write_profile() to the function .init.text:setup_profiling_timer()
>>   The function write_profile() references
>>   the function __init setup_profiling_timer().
>>   This is often because write_profile lacks a __init
>>   annotation or the annotation of setup_profiling_timer is wrong.
>>
>>
>> Signed-off-by: Chen Gang <gang.chen@asianux.com>
>> ---
>>  arch/arc/kernel/smp.c          |    2 +-
>>  arch/blackfin/mach-bf561/smp.c |    2 +-
>>  arch/parisc/kernel/smp.c       |    2 +-
>>  3 files changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
>> index bca3052..3bdac11 100644
>> --- a/arch/arc/kernel/smp.c
>> +++ b/arch/arc/kernel/smp.c
>> @@ -187,7 +187,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
>>  /*
>>   * not supported here
>>   */
>> -int __init setup_profiling_timer(unsigned int multiplier)
>> +int setup_profiling_timer(unsigned int multiplier)
>>  {
>>  	return -EINVAL;
>>  }
>> diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c
>> index 11789be..3bef058 100644
>> --- a/arch/blackfin/mach-bf561/smp.c
>> +++ b/arch/blackfin/mach-bf561/smp.c
>> @@ -43,7 +43,7 @@ void __init platform_prepare_cpus(unsigned int max_cpus)
>>  	init_cpu_present(&mask);
>>  }
>>  
>> -int __init setup_profiling_timer(unsigned int multiplier) /* not supported */
>> +int setup_profiling_timer(unsigned int multiplier) /* not supported */
>>  {
>>  	return -EINVAL;
>>  }
>> diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
>> index 8a252f2..2e8cd36 100644
>> --- a/arch/parisc/kernel/smp.c
>> +++ b/arch/parisc/kernel/smp.c
>> @@ -433,7 +433,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
>>  }
>>  
>>  #ifdef CONFIG_PROC_FS
>> -int __init
>> +int
>>  setup_profiling_timer(unsigned int multiplier)
>>  {
>>  	return -EINVAL;
> 
> In theory this change is OK. However this is legacy code at best and it would be
> better to define a weak definition in kernel/profile.c and remove this cruft from
> relevant arches. I'll send out a patch.
> 

That sounds good to me.

> -Vineet
> 
> 


-- 
Chen Gang

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On 10/31/2013 02:11 PM, Chen Gang wrote:
> On 10/31/2013 01:45 PM, Vineet Gupta wrote:
>> On 10/23/2013 07:36 AM, Chen Gang wrote:
>>> Most of architectures not use '__init' for setup_profiling_timer(), so
>>> need remove it, or can generate warning (e.g. arc with allmodconfig):
>>>
>>>     MODPOST vmlinux.o
>>>   WARNING: vmlinux.o(.text+0x3c682): Section mismatch in reference from the function write_profile() to the function .init.text:setup_profiling_timer()
>>>   The function write_profile() references
>>>   the function __init setup_profiling_timer().
>>>   This is often because write_profile lacks a __init
>>>   annotation or the annotation of setup_profiling_timer is wrong.
>>>
>>>
>>> Signed-off-by: Chen Gang <gang.chen@asianux.com>
>>> ---
>>>  arch/arc/kernel/smp.c          |    2 +-
>>>  arch/blackfin/mach-bf561/smp.c |    2 +-
>>>  arch/parisc/kernel/smp.c       |    2 +-
>>>  3 files changed, 3 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
>>> index bca3052..3bdac11 100644
>>> --- a/arch/arc/kernel/smp.c
>>> +++ b/arch/arc/kernel/smp.c
>>> @@ -187,7 +187,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
>>>  /*
>>>   * not supported here
>>>   */
>>> -int __init setup_profiling_timer(unsigned int multiplier)
>>> +int setup_profiling_timer(unsigned int multiplier)
>>>  {
>>>  	return -EINVAL;
>>>  }
>>> diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c
>>> index 11789be..3bef058 100644
>>> --- a/arch/blackfin/mach-bf561/smp.c
>>> +++ b/arch/blackfin/mach-bf561/smp.c
>>> @@ -43,7 +43,7 @@ void __init platform_prepare_cpus(unsigned int max_cpus)
>>>  	init_cpu_present(&mask);
>>>  }
>>>  
>>> -int __init setup_profiling_timer(unsigned int multiplier) /* not supported */
>>> +int setup_profiling_timer(unsigned int multiplier) /* not supported */
>>>  {
>>>  	return -EINVAL;
>>>  }
>>> diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
>>> index 8a252f2..2e8cd36 100644
>>> --- a/arch/parisc/kernel/smp.c
>>> +++ b/arch/parisc/kernel/smp.c
>>> @@ -433,7 +433,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
>>>  }
>>>  
>>>  #ifdef CONFIG_PROC_FS
>>> -int __init
>>> +int
>>>  setup_profiling_timer(unsigned int multiplier)
>>>  {
>>>  	return -EINVAL;
>>
>> In theory this change is OK. However this is legacy code at best and it would be
>> better to define a weak definition in kernel/profile.c and remove this cruft from
>> relevant arches. I'll send out a patch.
>>
> 
> That sounds good to me.
> 

Hmm... if so, recommend to modify another architectures which also only
return "-EINVAL", but without "__init" prefix.


Thanks.
-- 
Chen Gang

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On 10/31/2013 11:45 AM, Chen Gang wrote:
> Hmm... if so, recommend to modify another architectures which also only
> return "-EINVAL", but without "__init" prefix.

Yes in first pass, it will only convert the arches which return EINVAL but can ask
the maintainers whether they want the alternate versions too.

So you want to take a stab at this series.

-Vineet

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On 10/31/2013 02:22 PM, Vineet Gupta wrote:
> On 10/31/2013 11:45 AM, Chen Gang wrote:
>> > Hmm... if so, recommend to modify another architectures which also only
>> > return "-EINVAL", but without "__init" prefix.
> Yes in first pass, it will only convert the arches which return EINVAL but can ask
> the maintainers whether they want the alternate versions too.
> 

Yes.

> So you want to take a stab at this series.

If you have time, please help send.

In 1st half of next month, I will/should turn back to do another things
(e.g. use test tools and read code to find issues, and try to solve them).


Thanks.
-- 
Chen Gang

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] arch: * : include: asm: remove empty SERIAL_PORT_DFNS in
 serial.h
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If architectures don't support SERIAL_PORT_DFNS, they need not define
it to "nothing", the related drivers need do it by themselves (e.g.
8250 serial driver).

Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 arch/frv/include/asm/serial.h    |    2 --
 arch/parisc/include/asm/serial.h |    2 --
 2 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/arch/frv/include/asm/serial.h b/arch/frv/include/asm/serial.h
index dbb8259..658ceea 100644
--- a/arch/frv/include/asm/serial.h
+++ b/arch/frv/include/asm/serial.h
@@ -14,5 +14,3 @@
 #define BASE_BAUD 0
 
 #define STD_COM_FLAGS		ASYNC_BOOT_AUTOCONF
-
-#define SERIAL_PORT_DFNS
diff --git a/arch/parisc/include/asm/serial.h b/arch/parisc/include/asm/serial.h
index d7e3cc6..77e9b67 100644
--- a/arch/parisc/include/asm/serial.h
+++ b/arch/parisc/include/asm/serial.h
@@ -6,5 +6,3 @@
  * This is used for 16550-compatible UARTs
  */
 #define BASE_BAUD ( 1843200 / 16 )

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On Tue, Oct 29, 2013 at 08:50:51PM +0100, Helge Deller wrote:
> Yes, I think it really makes sense to send this patch to stable kernel series.
> Without this patch, any parisc box (ok - probably only the C8000) crashes
> as soon as the ipmi driver is loaded.
> 
> Will you ask (e.g. if possible for kernel 3.0 and higher - not sure if
> it applies)? 

3.4 shows some fuzz and iirc there were some changes I needed to make for
inclusion into latest kernels. Afaik all other C8k went only into 3.10,
so that should be good enough. And the patch applies cleanly to 3.10.
I'll write mail to the stable team.

Thomas.

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On 10/31/2013 01:06 PM, Thomas Bogendoerfer wrote:
> On Tue, Oct 29, 2013 at 08:50:51PM +0100, Helge Deller wrote:
>> Yes, I think it really makes sense to send this patch to stable kernel series.
>> Without this patch, any parisc box (ok - probably only the C8000) crashes
>> as soon as the ipmi driver is loaded.
>>
>> Will you ask (e.g. if possible for kernel 3.0 and higher - not sure if
>> it applies)? 
> 
> 3.4 shows some fuzz and iirc there were some changes I needed to make for
> inclusion into latest kernels. Afaik all other C8k went only into 3.10,
> so that should be good enough. And the patch applies cleanly to 3.10.
> I'll write mail to the stable team.

If possible >= 3.8 would be good.
I'm not sure Debians main unstable installation kernel is 3.8...

Helge 
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From: Guy Martin <gmsoft@tuxicoman.be>
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
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To: Helge Deller <deller@gmx.de>
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On 2013-10-29 21:37, Helge Deller wrote:
> On 10/29/2013 06:06 AM, James Bottomley wrote:
>> 
>> On Mon, 2013-10-28 at 16:08 +0100, Rolf Eike Beer wrote:
>>> James Bottomley: wrote
>>>> On Mon, 2013-10-28 at 10:00 +0100, Guy Martin wrote:
>>>>> Hi Helge,
>>>>> 
>>>>>> 
>>>>>> Works without crash for me on 3.12-rc6 ?
>>>>>> Linux ls3011 3.12.0-rc6-64bit+
>>>>>> 
>>>>>> Since you run 3.10.6, maybe updating the kernel might help.
>>>>>> Esp. this patch, which has been backported to kernel 3.10 (and is 
>>>>>> in
>>>>>> 3.10.17):
>>>>>> http://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-3.10.y&id=77587e89405f5d8225a0e750df254bcc2dcb73e1
>>>>> 
>>>>> Still the same problem with 3.12-rc6 here :
>>>> 
>>>> What system and CPU?
>>> 
>>> C8000
>> 
>> I tried this on a rp3440  (pa8800) and I can't reproduce.  I think it
>> might be something about the way the kernel is compiled.  The (null)
>> values for rp2 and IOAQ[0] look suspicious.
> 
> I tried it again, but this time on my c8000..
> Again, it does not crash for me.
> Kernel is 3.12.0-rc7-64bit.
> 
> I think James is right. Might be something with your compiler, but it 
> would
> be interesting what it is...


I've tried both
gcc-4.6.3 with ld 2.22
gcc-4.7.3 with ld 2.23.1

I've put a compiled kernel with modules here as well as the config :
http://www.tuxicoman.be/temp/linux-3.12-rc6-gdb-crash.tar.bz2

terminator linux-3.12-rc6 # hppa64-unknown-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/usr/hppa2.0-unknown-linux-gnu/hppa64-unknown-linux-gnu/gcc-bin/4.7.3/hppa64-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/hppa64-unknown-linux-gnu/4.7.3/lto-wrapper
Target: hppa64-unknown-linux-gnu
Configured with: 
/var/tmp/portage/sys-devel/kgcc64-4.7.3/work/gcc-4.7.3/configure 
--prefix=/usr 
--bindir=/usr/hppa2.0-unknown-linux-gnu/hppa64-unknown-linux-gnu/gcc-bin/4.7.3 
--includedir=/usr/lib/gcc/hppa64-unknown-linux-gnu/4.7.3/include 
--datadir=/usr/share/gcc-data/hppa64-unknown-linux-gnu/4.7.3 
--mandir=/usr/share/gcc-data/hppa64-unknown-linux-gnu/4.7.3/man 
--infodir=/usr/share/gcc-data/hppa64-unknown-linux-gnu/4.7.3/info 
--with-gxx-include-dir=/usr/lib/gcc/hppa64-unknown-linux-gnu/4.7.3/include/g++-v4 
--host=hppa2.0-unknown-linux-gnu --target=hppa64-unknown-linux-gnu 
--build=hppa2.0-unknown-linux-gnu --disable-altivec 
--disable-fixed-point --without-cloog --without-ppl --disable-lto 
--enable-nls --without-included-gettext --with-system-zlib 
--enable-obsolete --disable-werror --enable-secureplt --disable-multilib 
--disable-libmudflap --disable-libssp --disable-libgomp 
--with-python-dir=/share/gcc-data/hppa64-unknown-linux-gnu/4.7.3/python 
--enable-poison-system-directories --enable-checking=release 
--disable-libgcj --disable-build-with-cxx 
--disable-build-poststage1-with-cxx --disable-libquadmath 
--enable-languages=c --disable-shared --disable-threads 
--without-headers --disable-bootstrap --enable-__cxa_atexit 
--enable-clocale=gnu --with-bugurl=http://bugs.gentoo.org/ 
--with-pkgversion='Gentoo 4.7.3 p1.3'
Thread model: single
gcc version 4.7.3 (Gentoo 4.7.3 p1.3)

Regards,
   Guy

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Newsgroups: gmane.linux.nfs,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: 3.12-rcX - NFS regression - kswapd0 / kswapd1 stays using 100%
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On 10/19/2013 08:27 PM, Helge Deller wrote:
> On 10/18/2013 10:12 PM, Myklebust, Trond wrote:
>> On Fri, 2013-10-18 at 22:03 m, Helge Deller wrote:
>>> On 10/18/2013 09:36 PM, Myklebust, Trond wrote:
>>>> Also, could you please try a sysRQ-t the next time it happens, so that
>>>> we can get a trace of where the mount program is hanging. Knowing that
>>>> the mount is stuck in "__schedule()" is not really interesting unless we
>>>> know from where that was called.
>>>
>>> Actually, the machine was still running in this state.
>>> Here is sysrq-t:
>>> [112009.084000] mount           S 00000000401040c0     0 25331      1 0x00000010
>>> [112009.084000] Backtrace:
>>> [112009.084000]  [<0000000040113a68>] __schedule
>>> [112009.232000]
>>> [112009.232000] mount.nfs       D 00000000401040c0     0 25332  25331 0x00000010
>>> [112009.232000] Backtrace:
>>> [112009.232000]  [<0000000040113a68>] __schedule
>>
>> That makes no sense unless sysrq-t works differently on parisc than on
>> other platforms. I'd expect the backtrace to at least include a system
>> call. Parisc experts?
> 
> sysrq-t doesn't work differently on parisc. For other processes I do get
> a backtrace like the one on x86_64.
> That's the main reason why I asked for ideas here on the list.
> I do see the stuck process, but don't see any indications where it comes from.

I'm pretty sure that the regression (kswapd using 100% CPU) I reported here is fixed by this patch:
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?id=c56b097af26cb11c1f49a4311ba538c825666fed

I will start some testing...

Helge
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Hi all,

Maybe some people here on the list know the answer to this question?

Does the ATI FireGL cards (in e.g. a C8000) have a STI ROM?

I'm asking, because I noticed that with a 64bit kernel the
sticon driver (the Linux 8-color text console driver for STI) does 
crash while it worked nicely with a 32bit kernel.
I was able to fix this bug (patch is coming soon), but while
I was working on the driver, I found that it doesn't support
the ATI FireGL X1/X3 cards (e.g. in my C8000) either.
Now, as long as the Linux aty framebuffer drivers don't work reliable,
sticon would be at least a nice option for the text console.

Nevertheless, on the C8000 I do see the boot screen, e.g. for IPL.
So I'm wondering if with the ATI cards in general STI is used
for the boot screen or not.  

I did looked in the ATI cards PCI ROM for a secondary/third ROM,
but the things I found didn't looked like a STI-ROM either.

Any help/ideas would be appreciated.

Helge
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From - Thu Nov 08 21:09:50 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: Short notice: ipmi_si kills C8000
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Am Samstag, 26. Oktober 2013, 16:26:03 schrieb Rolf Eike Beer:
> I did "modprobe ipmi_si" on my C8000 (kernel 3.11.6), which immediate=
ly
> broke the machine. I have no backtrace yet, but I'll try to get one n=
ext
> week. In case someone has such a machine and the mood to debug this
> already=E2=80=A6 ;)

Ok, I now have IPMI monitoring on the C8000 working smoothly. Thanks fo=
r the=20
work on this.

While testing I installed by mistake the nagios IPMI check module and f=
reeipmi=20
on the C3600 (running 3.11.2 at that time). Calling "check_ipmi_sensor =
-T=20
Temperature -H localhost" reproducible caused a HPMC. There was no IPMI=
 module=20
loaded or even compiled on the machine so I think it has nothing to do =
with=20
the crash reported above. I'll try if I can get some additional informa=
tion on=20
monday.

Eike
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On Thu, Oct 31, 2013 at 10:26:00PM +0100, Helge Deller wrote:
> Does the ATI FireGL cards (in e.g. a C8000) have a STI ROM?

I wonder how many times I need to write that. They don't have STI ROMs.
The C8000 PDC must have an x86 emulator, which is used for POSTing
VGA cards. 

I've successfully installed normal Nvidia and AMD cards (both PCI and
AGP cards). For me radeonfb is working as console, but without any
acceleration (ring test failure problem). 

Thomas.

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On 29-Oct-13, at 12:41 PM, Thomas Bogendoerfer wrote:

> I've played only with ipmitool, which gives something like
>
> c8000:~# ipmitool sdr
> Systemboard      | 30 degrees C      | ok
> CPU 1            | 43 degrees C      | ok
> Ambient          | 24.50 degrees C   | ok

I played with IPMI a bit on rp3440.  It works to a degree but so far I  
haven't been able
to get it to show sensor data:

mx3210:/boot# ipmitool mc info
Device ID                 : 50
Device Revision           : 1
Firmware Revision         : 3.52
IPMI Version              : 1.0
Manufacturer ID           : 11
Manufacturer Name         : Hewlett-Packard
Product ID                : 33281 (0x8201)
Product Name              : Unknown (0x8201)
Device Available          : yes
Provides Device SDRs      : yes
Additional Device Support :
     Sensor Device
     SDR Repository Device
     SEL Device
     FRU Inventory Device
     IPMB Event Receiver
     IPMB Event Generator
mx3210:/boot# ipmitool sdr info
SDR Version                         : 0x1
Record Count                        : 92
Free Space                          : 12336 bytes
Most recent Addition                :
Most recent Erase                   :
SDR overflow                        : no
SDR Repository Update Support       : unspecified
Delete SDR supported                : no
Partial Add SDR supported           : no
Reserve SDR repository supported    : yes
SDR Repository Alloc info supported : yes
mx3210:/boot# ipmitool -v sdr list
Running Get PICMG Properties my_addr 0x20, transit 0, target 0
Error Response 0xc2 from Get PICMG Properities
No PICMG Extenstion discovered
Sensor ID              : Chassis Intrus (0x1)
  Entity ID             : 23.1 (System Chassis)
  Sensor Type (Discrete): Physical Security (0x05)
  Sensor Reading        : No Reading
  Event Message Control : Per-threshold
  OEM                   : 0

Get SDR 5000 command failed: Timeout
Get SDR 5000 command failed: Timeout
Get SDR 5000 command failed: Timeout
Get SDR 5000 command failed: Timeout
Get SDR 5000 command failed: Timeout
mx3210:/boot# ipmitool sdr type Temperature
Ambient Temp     | D8h | ns  | 23.1 | No Reading
Processor 0 Temp | D9h | ns  |  3.1 | No Reading
Processor 1 Temp | DAh | ns  |  3.2 | No Reading
mx3210:/boot# ipmitool  fru print
FRU Device Description : Builtin FRU Device (ID 0)
  Chassis Type          : Rack Mount Chassis
  Board Mfg Date        : Mon May 24 14:50:00 2004
  Board Mfg             : JABIL
  Board Product         : rp3440 SYSTEM BOARD
  Board Serial          : 52JAPE4422169260
  Board Part Number     : A7136-60001
  Board Extra           : A1
  Board Extra           : 4419
  Board Extra           : D
  Board Extra           : 00000000000000000000000000000000
  Product Manufacturer  : hp
  Product Extra         : 09010000

FRU Device Description : I/O Backplane (ID 5)
  Device not present (Timeout)

Get SDR 300d command failed: Timeout
Get SDR 300d command failed: Timeout
Get SDR 300d command failed: Timeout
Get SDR 300d command failed: Timeout
Get SDR 300d command failed: Timeout
mx3210:/boot# ipmitool -V
ipmitool version 1.8.13

Thoughts?

Dave

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From: Helge Deller <deller@gmx.de>
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Subject: Re: STI text console for ATI FireGL cards?
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Hi Thomas,

On 11/01/2013 01:01 AM, Thomas Bogendoerfer wrote:
> On Thu, Oct 31, 2013 at 10:26:00PM +0100, Helge Deller wrote:
>> Does the ATI FireGL cards (in e.g. a C8000) have a STI ROM?
> 
> I wonder how many times I need to write that. They don't have STI ROMs.
> The C8000 PDC must have an x86 emulator, which is used for POSTing
> VGA cards.

Yeah, I remember you mentioned that earlier....
 
> I've successfully installed normal Nvidia and AMD cards (both PCI and
> AGP cards). For me radeonfb is working as console, but without any
> acceleration (ring test failure problem).

At least unaccelerated radeonfb is still much better than STI console.

Thanks!
Helge
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From: dann frazier <dannf@dannf.org>
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Subject: parisc-linux.org losing hw hosting after this month
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Hi,
 I've been informed that the subnet on which HP is hosting
parisc-linux.org is going away next month. They have offered to ship
the hardware somewhere if it continues to be needed.
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From - Thu Nov 08 21:09:50 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc-linux.org losing hw hosting after this month
Date: Tue, 05 Nov 2013 08:56:02 +0800
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On Mon, 2013-11-04 at 17:35 -0700, dann frazier wrote:
> Hi,
>  I've been informed that the subnet on which HP is hosting
> parisc-linux.org is going away next month. They have offered to ship
> the hardware somewhere if it continues to be needed.

We'll probably end up distributing to people.  Do they have a list of
what it is (and approximate size for those wanting the N class)?

Thanks,

James


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From - Thu Nov 08 21:09:50 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc-linux.org losing hw hosting after this month
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On 4-Nov-13, at 7:56 PM, James Bottomley wrote:

> On Mon, 2013-11-04 at 17:35 -0700, dann frazier wrote:
>> Hi,
>> I've been informed that the subnet on which HP is hosting
>> parisc-linux.org is going away next month. They have offered to ship
>> the hardware somewhere if it continues to be needed.
>
> We'll probably end up distributing to people.  Do they have a list of
> what it is (and approximate size for those wanting the N class)?


Is there any possibility that HP might continue to host parisc-linux.org
on some other subnet/machine?

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:09:50 2018
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From: dann frazier <dannf@dannf.org>
Newsgroups: gmane.linux.ports.parisc
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On Tue, Nov 05, 2013 at 08:56:02AM +0800, James Bottomley wrote:
> On Mon, 2013-11-04 at 17:35 -0700, dann frazier wrote:
> > Hi,
> >  I've been informed that the subnet on which HP is hosting
> > parisc-linux.org is going away next month. They have offered to ship
> > the hardware somewhere if it continues to be needed.
> 
> We'll probably end up distributing to people.  Do they have a list of
> what it is (and approximate size for those wanting the N class)?

According to the inventory spreadsheet they shared with me, the only
thing left is the A500 currently hosting parisc-linux.org.
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From - Thu Nov 08 21:09:51 2018
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From: dann frazier <dannf@dannf.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc-linux.org losing hw hosting after this month
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On Mon, Nov 04, 2013 at 08:07:33PM -0500, John David Anglin wrote:
> On 4-Nov-13, at 7:56 PM, James Bottomley wrote:
> 
> >On Mon, 2013-11-04 at 17:35 -0700, dann frazier wrote:
> >>Hi,
> >>I've been informed that the subnet on which HP is hosting
> >>parisc-linux.org is going away next month. They have offered to ship
> >>the hardware somewhere if it continues to be needed.
> >
> >We'll probably end up distributing to people.  Do they have a list of
> >what it is (and approximate size for those wanting the N class)?
> 
> 
> Is there any possibility that HP might continue to host parisc-linux.org
> on some other subnet/machine?

I've asked before if they had other systems/VMs they could host it on
and the answer was no. I'll ask again to make sure that hasn't changed
for some reason, but I'd recommend looking for other options in the
meantime. Perhaps osuosl.org?
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From: "Craig Lamparter (ISS Linux)" <craig.lamparter@hp.com>
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Subject: Re: parisc-linux.org losing hw hosting after this month
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Just to confirm Dan's comment, HPIT is taking ownership of just
about everything, so it's harder to do g-jobs like this.  Even
our internal labs are being moved to isolated subnets, for better or
worse.  A University or co-lo system is probably going to have
better throughput than our current R&D edge compartments.

best,
-craig

--=20
_______________________
Craig Lamparter
HP Servers Linux R&D
Hewlett Packard Company
craig.lamparter@hp.com

On 11/04/2013 06:22 PM, dann frazier wrote:
> I've asked before if they had other systems/VMs they could host it on
> and the answer was no. I'll ask again to make sure that hasn't changed
> for some reason, but I'd recommend looking for other options in the
> meantime. Perhaps osuosl.org?


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> > Is there any possibility that HP might continue to host parisc-linux.org
> > on some other subnet/machine?
> 
> I've asked before if they had other systems/VMs they could host it on
> and the answer was no. I'll ask again to make sure that hasn't changed
> for some reason, but I'd recommend looking for other options in the
> meantime. Perhaps osuosl.org?

I would really prefer if it could go to some place where we e.g. could
use it as build/hosting server (e.g. osuosl.org). If that's not possible
I would be happy to get it privately for development, since a A500 is something 
which I don't have yet, and which is not that easy to get here in germany.

Helge
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>> I did "modprobe ipmi_si" on my C8000 (kernel 3.11.6), which=20
>> immediately
>> broke the machine. I have no backtrace yet, but I'll try to get one=20
>> next
>> week. In case someone has such a machine and the mood to debug this
>> already=E2=80=A6 ;)
>=20
> Ok, I now have IPMI monitoring on the C8000 working smoothly. Thanks=20
> for the
> work on this.
>=20
> While testing I installed by mistake the nagios IPMI check module and=
=20
> freeipmi
> on the C3600 (running 3.11.2 at that time). Calling "check_ipmi_senso=
r=20
> -T
> Temperature -H localhost" reproducible caused a HPMC. There was no IP=
MI=20
> module
> loaded or even compiled on the machine so I think it has nothing to d=
o=20
> with
> the crash reported above. I'll try if I can get some additional=20
> information on
> monday.

I can reproduce this on the C8000, using both 3.11.6 and 3.12: if=20
ipmi_devintf is not loaded the machine will die when nagios does the=20
first IPMI check. Loading this module makes the machine survive. Sadly=20
it seems that I have screwed up my serial setup so I don't have a=20
backtrace of this.

Eike
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From - Thu Nov 08 21:09:51 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Aw: Re: parisc-linux.org losing hw hosting after this month
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
	linux-parisc@vger.kernel.org
To: Helge Deller <deller@gmx.de>, dann frazier <dannf@dannf.org>
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On 11/5/2013 5:51 AM, Helge Deller wrote:
>>> Is there any possibility that HP might continue to host parisc-linux.org
>>> on some other subnet/machine?
>> I've asked before if they had other systems/VMs they could host it on
>> and the answer was no. I'll ask again to make sure that hasn't changed
>> for some reason, but I'd recommend looking for other options in the
>> meantime. Perhaps osuosl.org?
> I would really prefer if it could go to some place where we e.g. could
> use it as build/hosting server (e.g. osuosl.org). If that's not possible
> I would be happy to get it privately for development, since a A500 is something
> which I don't have yet, and which is not that easy to get here in germany.
>
osuosl.org might well be a good alternative.  Helge, would you fill in 
application?

If osuosl doesn't work out, I would support Helge receiving the 
machine.  I have an A500.

Regarding the website and wiki, there may be ways to handle that as the 
bandwidth requirements
aren't large.

Regarding the unstable archive, Helge and I were recently given accounts 
on debian-ports and
now can do package uploads.  I upload the first yesterday.  We need an 
unstable archive from which
it's possible to  debootstrap to help with this migration.  Will have to 
look at setting this up locally.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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Subject: Re: Aw: Re: parisc-linux.org losing hw hosting after this month
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On 11/05/2013 07:28 PM, John David Anglin wrote:
> On 11/5/2013 5:51 AM, Helge Deller wrote:
>>>> Is there any possibility that HP might continue to host parisc-linux.org
>>>> on some other subnet/machine?
>>> I've asked before if they had other systems/VMs they could host it on
>>> and the answer was no. I'll ask again to make sure that hasn't changed
>>> for some reason, but I'd recommend looking for other options in the
>>> meantime. Perhaps osuosl.org?
>> I would really prefer if it could go to some place where we e.g. could
>> use it as build/hosting server (e.g. osuosl.org). If that's not possible
>> I would be happy to get it privately for development, since a A500 is something
>> which I don't have yet, and which is not that easy to get here in germany.
>>
> osuosl.org might well be a good alternative.  Helge, would you fill in application?

I will do.

 
> If osuosl doesn't work out, I would support Helge receiving the machine.  I have an A500.
> 
> Regarding the website and wiki, there may be ways to handle that as the bandwidth requirements
> aren't large.

We have a new wiki at 
	https://parisc.wiki.kernel.org/
which I thought to be used as replacement for the website.
I've already started to migrate some pages over.
Anyone is welcome to help with this wiki.

Our regular Wiki (http://wiki.parisc-linux.org/) is hosted at servers from ESIEE and are not affected (AFAICS).
Nevertheless, maybe it would make sense to merge those over to the wiki at kernel.org too? 

> Regarding the unstable archive, Helge and I were recently given accounts on debian-ports and
> now can do package uploads.  I upload the first yesterday.  We need an unstable archive from which
> it's possible to  debootstrap to help with this migration.  Will have to look at setting this up locally.

If the archive at debian-ports works out, why do you want an additional debootstrap location?

Helge
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From - Thu Nov 08 21:09:51 2018
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On 11/5/2013 4:35 PM, Helge Deller wrote:
>> Regarding the unstable archive, Helge and I were recently given accounts on debian-ports and
>> >now can do package uploads.  I upload the first yesterday.  We need an unstable archive from which
>> >it's possible to  debootstrap to help with this migration.  Will have to look at setting this up locally.
> If the archive at debian-ports works out, why do you want an additional debootstrap location?
A buildd is setup initially using debootstrap.  This gives a minimal 
build system.
Then, package dependencies are dynamically resolved for each build as I 
understand it.

Even doing manual builds, one must set the required dependencies and 
resolve conflicts.  While this can be
done using a package archive stored in directory, it's easier to grab 
the needed packages with apt-get.
It will take some time (several months?) for debian-ports to reach the 
package collection on parisc-linux.org.

None of the packages on parisc-linux.org are signed and they lack a 
.changes file, so they can't be directly
uploaded as I understand it.

If we can't continue with a public archive (this allows others access as 
well during transition), then it would be best
to copy the archive to our respective local systems and use it while we 
bring ports up to speed.

Dave

-- 
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From - Thu Nov 08 21:09:51 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: sticon - fix 64bit and font selection
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To: linux-parisc@vger.kernel.org,
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STI text console (sticon) was broken on 64bit machines with more than
4GB and lead in some cases to a kernel crash.

Since sticon uses the 32bit STI API it needs to keep pointers to memory
below 4GB. But on a 64bit kernel some memory regions (e.g. the kernel
stack) might be above 4GB which then may crash the kernel in the STI
functions.

Additionally sticon didn't selected the built-in framebuffer fonts by
default. This is now fixed.

On a side-note: Theoretically we could enhance the sticon driver to
use the 64bit STI API. But this just adds complexity and on some
machines a 64bit STI is just not available.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index 35687fd..a68f3a7 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -3,7 +3,7 @@
  *	core code for console driver using HP's STI firmware
  *
  *	Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
- *	Copyright (C) 2001-2003 Helge Deller <deller@gmx.de>
+ *	Copyright (C) 2001-2013 Helge Deller <deller@gmx.de>
  *	Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
  * 
  * TODO:
@@ -30,7 +30,7 @@
 
 #include "../sticore.h"
 
-#define STI_DRIVERVERSION "Version 0.9a"
+#define STI_DRIVERVERSION "Version 0.9b"
 
 static struct sti_struct *default_sti __read_mostly;
 
@@ -73,28 +73,34 @@ static const struct sti_init_flags default_init_flags = {
 
 static int sti_init_graph(struct sti_struct *sti)
 {
-	struct sti_init_inptr_ext inptr_ext = { 0, };
-	struct sti_init_inptr inptr = {
-		.text_planes	= 3, /* # of text planes (max 3 for STI) */
-		.ext_ptr	= STI_PTR(&inptr_ext)
-	};
-	struct sti_init_outptr outptr = { 0, };
+	struct sti_init_inptr *inptr = &sti->sti_data->init_inptr;
+	struct sti_init_inptr_ext *inptr_ext = &sti->sti_data->init_inptr_ext;
+	struct sti_init_outptr *outptr = &sti->sti_data->init_outptr;
 	unsigned long flags;
-	int ret;
+	int ret, err;
 
 	spin_lock_irqsave(&sti->lock, flags);
 
-	ret = STI_CALL(sti->init_graph, &default_init_flags, &inptr,
-		&outptr, sti->glob_cfg);
+	memset(inptr, 0, sizeof(*inptr));
+	inptr->text_planes = 3; /* # of text planes (max 3 for STI) */
+	memset(inptr_ext, 0, sizeof(*inptr_ext));
+	inptr->ext_ptr = STI_PTR(inptr_ext);
+	outptr->errno = 0;
+
+	ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr,
+		outptr, sti->glob_cfg);
+
+	if (ret >= 0)
+		sti->text_planes = outptr->text_planes;
+	err = outptr->errno;
 
 	spin_unlock_irqrestore(&sti->lock, flags);
 
 	if (ret < 0) {
-		printk(KERN_ERR "STI init_graph failed (ret %d, errno %d)\n",ret,outptr.errno);
+		pr_err("STI init_graph failed (ret %d, errno %d)\n", ret, err);
 		return -1;
 	}
 	
-	sti->text_planes = outptr.text_planes;
 	return 0;
 }
 
@@ -104,16 +110,18 @@ static const struct sti_conf_flags default_conf_flags = {
 
 static void sti_inq_conf(struct sti_struct *sti)
 {
-	struct sti_conf_inptr inptr = { 0, };
+	struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr;
+	struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr;
 	unsigned long flags;
 	s32 ret;
 
-	sti->outptr.ext_ptr = STI_PTR(&sti->outptr_ext);
+	outptr->ext_ptr = STI_PTR(&sti->sti_data->inq_outptr_ext);
 	
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->inq_conf, &default_conf_flags,
-			&inptr, &sti->outptr, sti->glob_cfg);
+		memset(inptr, 0, sizeof(*inptr));
+		ret = sti_call(sti, sti->inq_conf, &default_conf_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -126,7 +134,8 @@ static const struct sti_font_flags default_font_flags = {
 void
 sti_putc(struct sti_struct *sti, int c, int y, int x)
 {
-	struct sti_font_inptr inptr = {
+	struct sti_font_inptr *inptr = &sti->sti_data->font_inptr;
+	struct sti_font_inptr inptr_default = {
 		.font_start_addr= STI_PTR(sti->font->raw),
 		.index		= c_index(sti, c),
 		.fg_color	= c_fg(sti, c),
@@ -134,14 +143,15 @@ sti_putc(struct sti_struct *sti, int c, int y, int x)
 		.dest_x		= x * sti->font_width,
 		.dest_y		= y * sti->font_height,
 	};
-	struct sti_font_outptr outptr = { 0, };
+	struct sti_font_outptr *outptr = &sti->sti_data->font_outptr;
 	s32 ret;
 	unsigned long flags;
 
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->font_unpmv, &default_font_flags,
-			&inptr, &outptr, sti->glob_cfg);
+		*inptr = inptr_default;
+		ret = sti_call(sti, sti->font_unpmv, &default_font_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -156,7 +166,8 @@ void
 sti_set(struct sti_struct *sti, int src_y, int src_x,
 	int height, int width, u8 color)
 {
-	struct sti_blkmv_inptr inptr = {
+	struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
+	struct sti_blkmv_inptr inptr_default = {
 		.fg_color	= color,
 		.bg_color	= color,
 		.src_x		= src_x,
@@ -166,14 +177,15 @@ sti_set(struct sti_struct *sti, int src_y, int src_x,
 		.width		= width,
 		.height		= height,
 	};
-	struct sti_blkmv_outptr outptr = { 0, };
+	struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
 	s32 ret;
 	unsigned long flags;
 	
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->block_move, &clear_blkmv_flags,
-			&inptr, &outptr, sti->glob_cfg);
+		*inptr = inptr_default;
+		ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -182,7 +194,8 @@ void
 sti_clear(struct sti_struct *sti, int src_y, int src_x,
 	  int height, int width, int c)
 {
-	struct sti_blkmv_inptr inptr = {
+	struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
+	struct sti_blkmv_inptr inptr_default = {
 		.fg_color	= c_fg(sti, c),
 		.bg_color	= c_bg(sti, c),
 		.src_x		= src_x * sti->font_width,
@@ -192,14 +205,15 @@ sti_clear(struct sti_struct *sti, int src_y, int src_x,
 		.width		= width * sti->font_width,
 		.height		= height* sti->font_height,
 	};
-	struct sti_blkmv_outptr outptr = { 0, };
+	struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
 	s32 ret;
 	unsigned long flags;
 
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->block_move, &clear_blkmv_flags,
-			&inptr, &outptr, sti->glob_cfg);
+		*inptr = inptr_default;
+		ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -212,7 +226,8 @@ void
 sti_bmove(struct sti_struct *sti, int src_y, int src_x,
 	  int dst_y, int dst_x, int height, int width)
 {
-	struct sti_blkmv_inptr inptr = {
+	struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
+	struct sti_blkmv_inptr inptr_default = {
 		.src_x		= src_x * sti->font_width,
 		.src_y		= src_y * sti->font_height,
 		.dest_x		= dst_x * sti->font_width,
@@ -220,14 +235,15 @@ sti_bmove(struct sti_struct *sti, int src_y, int src_x,
 		.width		= width * sti->font_width,
 		.height		= height* sti->font_height,
 	};
-	struct sti_blkmv_outptr outptr = { 0, };
+	struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
 	s32 ret;
 	unsigned long flags;
 
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->block_move, &default_blkmv_flags,
-			&inptr, &outptr, sti->glob_cfg);
+		*inptr = inptr_default;
+		ret = sti_call(sti, sti->block_move, &default_blkmv_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -284,7 +300,7 @@ __setup("sti=", sti_setup);
 
 
 
-static char *font_name[MAX_STI_ROMS] = { "VGA8x16", };
+static char *font_name[MAX_STI_ROMS];
 static int font_index[MAX_STI_ROMS],
 	   font_height[MAX_STI_ROMS],
 	   font_width[MAX_STI_ROMS];
@@ -389,10 +405,10 @@ static void sti_dump_outptr(struct sti_struct *sti)
 		"%d used bits\n"
 		"%d planes\n"
 		"attributes %08x\n",
-		 sti->outptr.bits_per_pixel,
-		 sti->outptr.bits_used,
-		 sti->outptr.planes,
-		 sti->outptr.attributes));
+		 sti->sti_data->inq_outptr.bits_per_pixel,
+		 sti->sti_data->inq_outptr.bits_used,
+		 sti->sti_data->inq_outptr.planes,
+		 sti->sti_data->inq_outptr.attributes));
 }
 
 static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
@@ -402,24 +418,21 @@ static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
 	struct sti_glob_cfg_ext *glob_cfg_ext;
 	void *save_addr;
 	void *sti_mem_addr;
-	const int save_addr_size = 1024;	/* XXX */
-	int i;
+	int i, size;
 
-	if (!sti->sti_mem_request)
+	if (sti->sti_mem_request < 256)
 		sti->sti_mem_request = 256; /* STI default */
 
-	glob_cfg = kzalloc(sizeof(*sti->glob_cfg), GFP_KERNEL);
-	glob_cfg_ext = kzalloc(sizeof(*glob_cfg_ext), GFP_KERNEL);
-	save_addr = kzalloc(save_addr_size, GFP_KERNEL);
-	sti_mem_addr = kzalloc(sti->sti_mem_request, GFP_KERNEL);
+	size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256;
 
-	if (!(glob_cfg && glob_cfg_ext && save_addr && sti_mem_addr)) {
-		kfree(glob_cfg);
-		kfree(glob_cfg_ext);
-		kfree(save_addr);
-		kfree(sti_mem_addr);
+	sti->sti_data = kzalloc(size, STI_LOWMEM);
+	if (!sti->sti_data)
 		return -ENOMEM;
-	}
+
+	glob_cfg	= &sti->sti_data->glob_cfg;
+	glob_cfg_ext	= &sti->sti_data->glob_cfg_ext;
+	save_addr	= &sti->sti_data->save_addr;
+	sti_mem_addr	= &sti->sti_data->sti_mem_addr;
 
 	glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
 	glob_cfg->save_addr = STI_PTR(save_addr);
@@ -475,32 +488,31 @@ static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
 	return 0;
 }
 
-#ifdef CONFIG_FB
+#ifdef CONFIG_FONTS
 static struct sti_cooked_font *
 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
 {
-	const struct font_desc *fbfont;
+	const struct font_desc *fbfont = NULL;
 	unsigned int size, bpc;
 	void *dest;
 	struct sti_rom_font *nf;
 	struct sti_cooked_font *cooked_font;
 	
-	if (!fbfont_name || !strlen(fbfont_name))
-		return NULL;
-	fbfont = find_font(fbfont_name);
+	if (fbfont_name && strlen(fbfont_name))
+		fbfont = find_font(fbfont_name);
 	if (!fbfont)
 		fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
 	if (!fbfont)
 		return NULL;
 
-	DPRINTK((KERN_DEBUG "selected %dx%d fb-font %s\n",
-			fbfont->width, fbfont->height, fbfont->name));
+	pr_info("STI selected %dx%d framebuffer font %s for sticon\n",
+			fbfont->width, fbfont->height, fbfont->name);
 			
 	bpc = ((fbfont->width+7)/8) * fbfont->height; 
 	size = bpc * 256;
 	size += sizeof(struct sti_rom_font);
 
-	nf = kzalloc(size, GFP_KERNEL);
+	nf = kzalloc(size, STI_LOWMEM);
 	if (!nf)
 		return NULL;
 
@@ -637,7 +649,7 @@ static void *sti_bmode_font_raw(struct sti_cooked_font *f)
 	unsigned char *n, *p, *q;
 	int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font);
 	
-	n = kzalloc (4*size, GFP_KERNEL);
+	n = kzalloc(4*size, STI_LOWMEM);
 	if (!n)
 		return NULL;
 	p = n + 3;
@@ -673,7 +685,7 @@ static struct sti_rom *sti_get_bmode_rom (unsigned long address)
 	sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
 
 	size = (size+3) / 4;
-	raw = kmalloc(size, GFP_KERNEL);
+	raw = kmalloc(size, STI_LOWMEM);
 	if (raw) {
 		sti_bmode_rom_copy(address, size, raw);
 		memmove (&raw->res004, &raw->type[0], 0x3c);
@@ -707,7 +719,7 @@ static struct sti_rom *sti_get_wmode_rom(unsigned long address)
 	/* read the ROM size directly from the struct in ROM */ 
 	size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
 
-	raw = kmalloc(size, GFP_KERNEL);
+	raw = kmalloc(size, STI_LOWMEM);
 	if (raw)
 		sti_rom_copy(address, size, raw);
 
@@ -743,6 +755,10 @@ static int sti_read_rom(int wordmode, struct sti_struct *sti,
 
 	address = (unsigned long) STI_PTR(raw);
 
+	pr_info("STI ROM supports 32 %sbit firmware functions.\n",
+		raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64
+		? "and 64 " : "");
+
 	sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
 	sti->block_move = address + (raw->block_move & 0x03ffffff);
 	sti->init_graph = address + (raw->init_graph & 0x03ffffff);
@@ -901,7 +917,8 @@ test_rom:
 	sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
 	sti_dump_outptr(sti);
 	
-	printk(KERN_INFO "    graphics card name: %s\n", sti->outptr.dev_name );
+	pr_info("    graphics card name: %s\n",
+		sti->sti_data->inq_outptr.dev_name);
 
 	sti_roms[num_sti_roms] = sti;
 	num_sti_roms++;
@@ -1073,6 +1090,29 @@ struct sti_struct * sti_get_rom(unsigned int index)
 }
 EXPORT_SYMBOL(sti_get_rom);
 
+
+int sti_call(const struct sti_struct *sti, unsigned long func,
+		const void *flags, void *inptr, void *outptr,
+		struct sti_glob_cfg *glob_cfg)
+{
+	unsigned long _flags = STI_PTR(flags);
+	unsigned long _inptr = STI_PTR(inptr);
+	unsigned long _outptr = STI_PTR(outptr);
+	unsigned long _glob_cfg = STI_PTR(glob_cfg);
+	int ret;
+
+#ifdef CONFIG_64BIT
+	/* Check for overflow when using 32bit STI on 64bit kernel. */
+	if (WARN_ONCE(_flags>>32 || _inptr>>32 || _outptr>>32 || _glob_cfg>>32,
+			"Out of 32bit-range pointers!"))
+		return -1;
+#endif
+
+	ret = pdc_sti_call(func, _flags, _inptr, _outptr, _glob_cfg);
+
+	return ret;
+}
+
 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/sticore.h b/drivers/video/sticore.h
index addf7b6..af16195 100644
--- a/drivers/video/sticore.h
+++ b/drivers/video/sticore.h
@@ -18,6 +18,9 @@
 #define STI_FONT_HPROMAN8 1
 #define STI_FONT_KANA8 2
 
+#define ALT_CODE_TYPE_UNKNOWN 0x00	/* alt code type values */
+#define ALT_CODE_TYPE_PA_RISC_64 0x01
+
 /* The latency of the STI functions cannot really be reduced by setting
  * this to 0;  STI doesn't seem to be designed to allow calling a different
  * function (or the same function with different arguments) after a
@@ -40,14 +43,6 @@
 
 #define STI_PTR(p)	( virt_to_phys(p) )
 #define PTR_STI(p)	( phys_to_virt((unsigned long)p) )
-#define STI_CALL(func, flags, inptr, outptr, glob_cfg)	\
-       ({						\
-               pdc_sti_call( func, STI_PTR(flags),	\
-				   STI_PTR(inptr),	\
-				   STI_PTR(outptr),	\
-				   STI_PTR(glob_cfg));	\
-       })
-
 
 #define sti_onscreen_x(sti) (sti->glob_cfg->onscreen_x)
 #define sti_onscreen_y(sti) (sti->glob_cfg->onscreen_y)
@@ -56,6 +51,12 @@
 #define sti_font_x(sti) (PTR_STI(sti->font)->width)
 #define sti_font_y(sti) (PTR_STI(sti->font)->height)
 
+#ifdef CONFIG_64BIT
+#define STI_LOWMEM	(GFP_KERNEL | GFP_DMA)
+#else
+#define STI_LOWMEM	(GFP_KERNEL)
+#endif
+
 
 /* STI function configuration structs */
 
@@ -306,6 +307,34 @@ struct sti_blkmv_outptr {
 };
 
 
+/* sti_all_data is an internal struct which needs to be allocated in
+ * low memory (< 4GB) if STI is used with 32bit STI on a 64bit kernel */
+
+struct sti_all_data {
+	struct sti_glob_cfg glob_cfg;
+	struct sti_glob_cfg_ext glob_cfg_ext;
+
+	struct sti_conf_inptr		inq_inptr;
+	struct sti_conf_outptr		inq_outptr; /* configuration */
+	struct sti_conf_outptr_ext	inq_outptr_ext;
+
+	struct sti_init_inptr_ext	init_inptr_ext;
+	struct sti_init_inptr		init_inptr;
+	struct sti_init_outptr		init_outptr;
+
+	struct sti_blkmv_inptr		blkmv_inptr;
+	struct sti_blkmv_outptr		blkmv_outptr;
+
+	struct sti_font_inptr		font_inptr;
+	struct sti_font_outptr		font_outptr;
+
+	/* leave as last entries */
+	unsigned long save_addr[1024 / sizeof(unsigned long)];
+	   /* min 256 bytes which is STI default, max sti->sti_mem_request */
+	unsigned long sti_mem_addr[256 / sizeof(unsigned long)];
+	/* do not add something below here ! */
+};
+
 /* internal generic STI struct */
 
 struct sti_struct {
@@ -330,11 +359,9 @@ struct sti_struct {
 	region_t regions[STI_REGION_MAX];
 	unsigned long regions_phys[STI_REGION_MAX];
 
-	struct sti_glob_cfg *glob_cfg;
-	struct sti_cooked_font *font;	/* ptr to selected font (cooked) */
+	struct sti_glob_cfg *glob_cfg;	/* points into sti_all_data */
 
-	struct sti_conf_outptr outptr; /* configuration */
-	struct sti_conf_outptr_ext outptr_ext;
+	struct sti_cooked_font *font;	/* ptr to selected font (cooked) */
 
 	struct pci_dev *pd;
 
@@ -343,6 +370,9 @@ struct sti_struct {
 
 	/* pointer to the fb_info where this STI device is used */
 	struct fb_info *info;
+
+	/* pointer to all internal data */
+	struct sti_all_data *sti_data;
 };
 
 
@@ -350,6 +380,14 @@ struct sti_struct {
 
 struct sti_struct *sti_get_rom(unsigned int index); /* 0: default sti */
 
+
+/* sticore main function to call STI firmware */
+
+int sti_call(const struct sti_struct *sti, unsigned long func,
+		const void *flags, void *inptr, void *outptr,
+		struct sti_glob_cfg *glob_cfg);
+
+
 /* functions to call the STI ROM directly */
 
 void sti_putc(struct sti_struct *sti, int c, int y, int x);
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Clean up code to send correct signal on invalid memory accesses:
Send SIGBUS instead of SIGSEGV for memory accesses outside of mmap'ed areas

This fixes the mmap13 testcase from the Linux Test Project.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 0293588..6ab70d7 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -274,12 +274,22 @@ bad_area:
 		}
 		show_regs(regs);
 #endif
-		/* FIXME: actually we need to get the signo and code correct */
-		si.si_signo = SIGSEGV;
+		switch (code) {
+		case 15:	/* Data TLB miss fault/Data page fault */
+		case 17:	/* NA data TLB miss / page fault */
+		case 18:	/* Unaligned access - PCXS only */
+			si.si_signo = SIGBUS;
+			si.si_code = BUS_ADRERR;
+			break;
+		case 16:	/* Non-access instruction TLB miss fault */
+		case 26:	/* PCXL: Data memory access rights trap */
+		default:
+			si.si_signo = SIGSEGV;
+			si.si_code = SEGV_MAPERR;
+		}
 		si.si_errno = 0;
-		si.si_code = SEGV_MAPERR;
 		si.si_addr = (void __user *) address;
-		force_sig_info(SIGSEGV, &si, current);
+		force_sig_info(si.si_signo, &si, current);
 		return;
 	}
 
--
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From - Thu Nov 08 21:09:52 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: sticon - fix 64bit and font selection
 (unfinished support-for-64bit-STI-API patch)
Date: Thu, 7 Nov 2013 20:29:59 +0100
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* Helge Deller <deller@gmx.de>:
> STI text console (sticon) was broken on 64bit machines with more than
> 4GB and lead in some cases to a kernel crash.
> 
> Since sticon uses the 32bit STI API it needs to keep pointers to memory
> below 4GB. But on a 64bit kernel some memory regions (e.g. the kernel
> stack) might be above 4GB which then may crash the kernel in the STI
> functions.
> 
> Additionally sticon didn't selected the built-in framebuffer fonts by
> default. This is now fixed.
> 
> On a side-note: Theoretically we could enhance the sticon driver to
> use the 64bit STI API. But this just adds complexity and on some
> machines a 64bit STI is just not available.

Just for the archive - here is an unfinished version of my STIcon patch
which can be used to develop a version which additionally supports the
64bit STI functions.
Most changes are identical to the committed version.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 7eb616e..501e564 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -318,9 +318,14 @@ int pdc_iodc_getc(void);
 int pdc_iodc_print(const unsigned char *str, unsigned count);
 
 void pdc_emergency_unlock(void);
-int pdc_sti_call(unsigned long func, unsigned long flags,
+int pdc_sti_call32(unsigned long func, unsigned long flags,
                  unsigned long inptr, unsigned long outputr,
                  unsigned long glob_cfg);
+#ifdef CONFIG_64BIT
+int pdc_sti_call64(unsigned long func, unsigned long flags,
+                 unsigned long inptr, unsigned long outputr,
+                 unsigned long glob_cfg);
+#endif
 
 static inline char * os_id_to_string(u16 os_id) {
 	switch(os_id) {
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 2239590..cb50107 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1185,7 +1185,7 @@ int pdc_iodc_getc(void)
 	return ch;
 }
 
-int pdc_sti_call(unsigned long func, unsigned long flags,
+int pdc_sti_call32(unsigned long func, unsigned long flags,
                  unsigned long inptr, unsigned long outputr,
                  unsigned long glob_cfg)
 {
@@ -1198,9 +1198,25 @@ int pdc_sti_call(unsigned long func, unsigned long flags,
 
         return retval;
 }
-EXPORT_SYMBOL(pdc_sti_call);
+EXPORT_SYMBOL(pdc_sti_call32);
 
 #ifdef CONFIG_64BIT
+int pdc_sti_call64(unsigned long func, unsigned long flags,
+                 unsigned long inptr, unsigned long outputr,
+                 unsigned long glob_cfg)
+{
+	int retval;
+	unsigned long irqflags;
+
+	spin_lock_irqsave(&pdc_lock, irqflags);
+	retval = real64_call(func, flags, inptr, outputr, glob_cfg);
+	spin_unlock_irqrestore(&pdc_lock, irqflags);
+
+	return retval;
+}
+EXPORT_SYMBOL(pdc_sti_call64);
+
+
 /**
  * pdc_pat_cell_get_number - Returns the cell number.
  * @cell_info: The return buffer.
diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index 35687fd..0095f50 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -73,28 +73,34 @@ static const struct sti_init_flags default_init_flags = {
 
 static int sti_init_graph(struct sti_struct *sti)
 {
-	struct sti_init_inptr_ext inptr_ext = { 0, };
-	struct sti_init_inptr inptr = {
-		.text_planes	= 3, /* # of text planes (max 3 for STI) */
-		.ext_ptr	= STI_PTR(&inptr_ext)
-	};
-	struct sti_init_outptr outptr = { 0, };
+	struct sti_init_inptr *inptr = &sti->sti_data->init_inptr;
+	struct sti_init_inptr_ext *inptr_ext = &sti->sti_data->init_inptr_ext;
+	struct sti_init_outptr *outptr = &sti->sti_data->init_outptr;
 	unsigned long flags;
-	int ret;
+	int ret, err;
 
 	spin_lock_irqsave(&sti->lock, flags);
 
-	ret = STI_CALL(sti->init_graph, &default_init_flags, &inptr,
-		&outptr, sti->glob_cfg);
+	memset(inptr, 0, sizeof(*inptr));
+	inptr->text_planes = 3; /* # of text planes (max 3 for STI) */
+	memset(inptr_ext, 0, sizeof(*inptr_ext));
+	inptr->ext_ptr = STI_LONGPTR(sti, inptr_ext);
+	outptr->errno = 0;
+
+	ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr,
+		outptr, sti->glob_cfg);
+
+	if (ret >= 0)
+		sti->text_planes = outptr->text_planes;
+	err = outptr->errno;
 
 	spin_unlock_irqrestore(&sti->lock, flags);
 
 	if (ret < 0) {
-		printk(KERN_ERR "STI init_graph failed (ret %d, errno %d)\n",ret,outptr.errno);
+		printk(KERN_ERR "STI init_graph failed (ret %d, errno %d)\n", ret, err);
 		return -1;
 	}
 	
-	sti->text_planes = outptr.text_planes;
 	return 0;
 }
 
@@ -104,16 +110,18 @@ static const struct sti_conf_flags default_conf_flags = {
 
 static void sti_inq_conf(struct sti_struct *sti)
 {
-	struct sti_conf_inptr inptr = { 0, };
+	struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr;
+	struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr;
 	unsigned long flags;
 	s32 ret;
 
-	sti->outptr.ext_ptr = STI_PTR(&sti->outptr_ext);
+	outptr->ext_ptr = STI_LONGPTR(sti, &sti->sti_data->inq_outptr_ext);
 	
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->inq_conf, &default_conf_flags,
-			&inptr, &sti->outptr, sti->glob_cfg);
+		memset(inptr, 0, sizeof(*inptr));
+		ret = sti_call(sti, sti->inq_conf, &default_conf_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -126,7 +134,8 @@ static const struct sti_font_flags default_font_flags = {
 void
 sti_putc(struct sti_struct *sti, int c, int y, int x)
 {
-	struct sti_font_inptr inptr = {
+	struct sti_font_inptr *inptr = &sti->sti_data->font_inptr;
+	struct sti_font_inptr inptr_default = {
 		.font_start_addr= STI_PTR(sti->font->raw),
 		.index		= c_index(sti, c),
 		.fg_color	= c_fg(sti, c),
@@ -134,14 +143,15 @@ sti_putc(struct sti_struct *sti, int c, int y, int x)
 		.dest_x		= x * sti->font_width,
 		.dest_y		= y * sti->font_height,
 	};
-	struct sti_font_outptr outptr = { 0, };
+	struct sti_font_outptr *outptr = &sti->sti_data->font_outptr;
 	s32 ret;
 	unsigned long flags;
 
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->font_unpmv, &default_font_flags,
-			&inptr, &outptr, sti->glob_cfg);
+		*inptr = inptr_default;
+		ret = sti_call(sti, sti->font_unpmv, &default_font_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -156,7 +166,8 @@ void
 sti_set(struct sti_struct *sti, int src_y, int src_x,
 	int height, int width, u8 color)
 {
-	struct sti_blkmv_inptr inptr = {
+	struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
+	struct sti_blkmv_inptr inptr_default = {
 		.fg_color	= color,
 		.bg_color	= color,
 		.src_x		= src_x,
@@ -166,14 +177,15 @@ sti_set(struct sti_struct *sti, int src_y, int src_x,
 		.width		= width,
 		.height		= height,
 	};
-	struct sti_blkmv_outptr outptr = { 0, };
+	struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
 	s32 ret;
 	unsigned long flags;
 	
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->block_move, &clear_blkmv_flags,
-			&inptr, &outptr, sti->glob_cfg);
+		*inptr = inptr_default;
+		ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -182,7 +194,8 @@ void
 sti_clear(struct sti_struct *sti, int src_y, int src_x,
 	  int height, int width, int c)
 {
-	struct sti_blkmv_inptr inptr = {
+	struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
+	struct sti_blkmv_inptr inptr_default = {
 		.fg_color	= c_fg(sti, c),
 		.bg_color	= c_bg(sti, c),
 		.src_x		= src_x * sti->font_width,
@@ -192,14 +205,15 @@ sti_clear(struct sti_struct *sti, int src_y, int src_x,
 		.width		= width * sti->font_width,
 		.height		= height* sti->font_height,
 	};
-	struct sti_blkmv_outptr outptr = { 0, };
+	struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
 	s32 ret;
 	unsigned long flags;
 
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->block_move, &clear_blkmv_flags,
-			&inptr, &outptr, sti->glob_cfg);
+		*inptr = inptr_default;
+		ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -212,7 +226,8 @@ void
 sti_bmove(struct sti_struct *sti, int src_y, int src_x,
 	  int dst_y, int dst_x, int height, int width)
 {
-	struct sti_blkmv_inptr inptr = {
+	struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
+	struct sti_blkmv_inptr inptr_default = {
 		.src_x		= src_x * sti->font_width,
 		.src_y		= src_y * sti->font_height,
 		.dest_x		= dst_x * sti->font_width,
@@ -220,14 +235,15 @@ sti_bmove(struct sti_struct *sti, int src_y, int src_x,
 		.width		= width * sti->font_width,
 		.height		= height* sti->font_height,
 	};
-	struct sti_blkmv_outptr outptr = { 0, };
+	struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
 	s32 ret;
 	unsigned long flags;
 
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->block_move, &default_blkmv_flags,
-			&inptr, &outptr, sti->glob_cfg);
+		*inptr = inptr_default;
+		ret = sti_call(sti, sti->block_move, &default_blkmv_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -389,10 +405,10 @@ static void sti_dump_outptr(struct sti_struct *sti)
 		"%d used bits\n"
 		"%d planes\n"
 		"attributes %08x\n",
-		 sti->outptr.bits_per_pixel,
-		 sti->outptr.bits_used,
-		 sti->outptr.planes,
-		 sti->outptr.attributes));
+		 sti->sti_data->inq_outptr.bits_per_pixel,
+		 sti->sti_data->inq_outptr.bits_used,
+		 sti->sti_data->inq_outptr.planes,
+		 sti->sti_data->inq_outptr.attributes));
 }
 
 static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
@@ -402,24 +418,21 @@ static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
 	struct sti_glob_cfg_ext *glob_cfg_ext;
 	void *save_addr;
 	void *sti_mem_addr;
-	const int save_addr_size = 1024;	/* XXX */
-	int i;
+	int i, size;
 
-	if (!sti->sti_mem_request)
+	if (sti->sti_mem_request < 256)
 		sti->sti_mem_request = 256; /* STI default */
 
-	glob_cfg = kzalloc(sizeof(*sti->glob_cfg), GFP_KERNEL);
-	glob_cfg_ext = kzalloc(sizeof(*glob_cfg_ext), GFP_KERNEL);
-	save_addr = kzalloc(save_addr_size, GFP_KERNEL);
-	sti_mem_addr = kzalloc(sti->sti_mem_request, GFP_KERNEL);
+	size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256;
 
-	if (!(glob_cfg && glob_cfg_ext && save_addr && sti_mem_addr)) {
-		kfree(glob_cfg);
-		kfree(glob_cfg_ext);
-		kfree(save_addr);
-		kfree(sti_mem_addr);
+	sti->sti_data = kzalloc(size, GFP_KERNEL | GFP_DMA);
+	if (!sti->sti_data)
 		return -ENOMEM;
-	}
+
+	glob_cfg	= &sti->sti_data->glob_cfg;
+	glob_cfg_ext	= &sti->sti_data->glob_cfg_ext;
+	save_addr	= &sti->sti_data->save_addr;
+	sti_mem_addr	= &sti->sti_data->sti_mem_addr;
 
 	glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
 	glob_cfg->save_addr = STI_PTR(save_addr);
@@ -500,7 +513,7 @@ sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
 	size = bpc * 256;
 	size += sizeof(struct sti_rom_font);
 
-	nf = kzalloc(size, GFP_KERNEL);
+	nf = kzalloc(size, GFP_KERNEL | GFP_DMA);
 	if (!nf)
 		return NULL;
 
@@ -637,7 +650,7 @@ static void *sti_bmode_font_raw(struct sti_cooked_font *f)
 	unsigned char *n, *p, *q;
 	int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font);
 	
-	n = kzalloc (4*size, GFP_KERNEL);
+	n = kzalloc (4*size, GFP_KERNEL | GFP_DMA);
 	if (!n)
 		return NULL;
 	p = n + 3;
@@ -673,7 +686,7 @@ static struct sti_rom *sti_get_bmode_rom (unsigned long address)
 	sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
 
 	size = (size+3) / 4;
-	raw = kmalloc(size, GFP_KERNEL);
+	raw = kmalloc(size, GFP_KERNEL | GFP_DMA);
 	if (raw) {
 		sti_bmode_rom_copy(address, size, raw);
 		memmove (&raw->res004, &raw->type[0], 0x3c);
@@ -707,7 +720,7 @@ static struct sti_rom *sti_get_wmode_rom(unsigned long address)
 	/* read the ROM size directly from the struct in ROM */ 
 	size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
 
-	raw = kmalloc(size, GFP_KERNEL);
+	raw = kmalloc(size, GFP_KERNEL | GFP_DMA);
 	if (raw)
 		sti_rom_copy(address, size, raw);
 
@@ -743,11 +756,48 @@ static int sti_read_rom(int wordmode, struct sti_struct *sti,
 
 	address = (unsigned long) STI_PTR(raw);
 
+	pr_info("STI ROM supports 32 %sbit firmware functions.\n",
+		raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64 ? "and 64 ":"");
+
+#ifdef CONFIG_64BIT
+	/* Check if STI firmware includes 64bit API functions. */
+	sti->use_64bit = (raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64);
+
+ sti->use_64bit = 0; /* XXX */
+
+	/* Prefer 64bit STI API if available. */
+	if (STI_USE_64bit) {
+		pr_warn("STI: Using 64bit STI functions.\n");
+		sti->font_unpmv = address + (raw->font_unp_64bit   & 0x03ffffff);
+		sti->block_move = address + (raw->block_move_64bit & 0x03ffffff);
+		sti->init_graph = address + (raw->init_graph_64bit & 0x03ffffff);
+		sti->inq_conf   = address + (raw->inq_conf_64bit   & 0x03ffffff);
+		goto cont1;
+	}
+
+	pr_warn("STI: Memory = %u bytes\n", PAGE0->imm_max_mem);
+	if (PAGE0->imm_max_mem >= (3UL*1024+512)*1024*1024) {
+		pr_warn("STI: Sorry, 64bit STI firmware functions needed on machines with > 3.5 GB.\n");
+		goto out_err;
+	}
+
+	/* If the machine has less than 4GB physical RAM, then just use the
+	 * 32bit STI functions. Since we need to convert all pointers into
+	 * physical addresses, all will be below 4GB which is reachable by
+	 * the 32bit STI implementation.
+	 */
+#endif
+
+	pr_warn("STI: Using 32bit STI functions.\n");
 	sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
 	sti->block_move = address + (raw->block_move & 0x03ffffff);
 	sti->init_graph = address + (raw->init_graph & 0x03ffffff);
 	sti->inq_conf   = address + (raw->inq_conf   & 0x03ffffff);
 
+#ifdef CONFIG_64BIT
+cont1:
+#endif
+
 	sti->rom = cooked;
 	sti->rom->raw = raw;
 	
@@ -901,7 +951,7 @@ test_rom:
 	sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
 	sti_dump_outptr(sti);
 	
-	printk(KERN_INFO "    graphics card name: %s\n", sti->outptr.dev_name );
+	printk(KERN_INFO "    graphics card name: %s\n", sti->sti_data->inq_outptr.dev_name );
 
 	sti_roms[num_sti_roms] = sti;
 	num_sti_roms++;
@@ -1073,6 +1123,35 @@ struct sti_struct * sti_get_rom(unsigned int index)
 }
 EXPORT_SYMBOL(sti_get_rom);
 
+
+int sti_call(const struct sti_struct *sti, unsigned long func, const void *flags,
+                void *inptr, void *outptr, struct sti_glob_cfg *glob_cfg)
+{
+	unsigned long _flags = STI_PTR(flags);
+	unsigned long _inptr = STI_PTR(inptr);
+	unsigned long _outptr = STI_PTR(outptr);
+	unsigned long _glob_cfg = STI_PTR(glob_cfg);
+	int ret;
+
+	if (!STI_USE_64bit) {
+		/* Check for overflow when using 32bit STI on 64bit kernel. */
+		if (_flags>>32 || _inptr>>32 || _outptr>>32 || _glob_cfg>>32) {
+			WARN_ONCE(1, "INVALID POINTERS!");
+			return -1;
+		}
+	}
+
+//	pr_warn("sti_call(%#lx, %#lx, %#lx, %#lx, %#lx)\n",
+//		func, _flags, _inptr, _outptr, _glob_cfg);
+
+	if (STI_USE_64bit)
+		ret = pdc_sti_call64( func, _flags, _inptr, _outptr, _glob_cfg);
+	else
+		ret = pdc_sti_call32( func, _flags, _inptr, _outptr, _glob_cfg);
+
+	return ret;
+}
+
 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/sticore.h b/drivers/video/sticore.h
index addf7b6..fe42c93 100644
--- a/drivers/video/sticore.h
+++ b/drivers/video/sticore.h
@@ -3,7 +3,7 @@
 
 /* generic STI structures & functions */
 
-#if 0
+#if 1
 #define DPRINTK(x)	printk x
 #else
 #define DPRINTK(x) 
@@ -18,6 +18,9 @@
 #define STI_FONT_HPROMAN8 1
 #define STI_FONT_KANA8 2
 
+#define ALT_CODE_TYPE_UNKNOWN 0x00	/* alt code type values */
+#define ALT_CODE_TYPE_PA_RISC_64 0x01
+
 /* The latency of the STI functions cannot really be reduced by setting
  * this to 0;  STI doesn't seem to be designed to allow calling a different
  * function (or the same function with different arguments) after a
@@ -35,19 +38,25 @@
  */
  
 #include <asm/io.h>
+#include <linux/bug.h>
 
 #define STI_WAIT 1
 
-#define STI_PTR(p)	( virt_to_phys(p) )
-#define PTR_STI(p)	( phys_to_virt((unsigned long)p) )
-#define STI_CALL(func, flags, inptr, outptr, glob_cfg)	\
-       ({						\
-               pdc_sti_call( func, STI_PTR(flags),	\
-				   STI_PTR(inptr),	\
-				   STI_PTR(outptr),	\
-				   STI_PTR(glob_cfg));	\
-       })
+#ifdef CONFIG_64BIT
+#define STI_USE_64bit		sti->use_64bit
+#else
+#define STI_USE_64bit		0
+#endif
+
+// #define STI_PTR(p)		( virt_to_phys(p) )
+#define STI_PTR(p)		({ unsigned long _p = virt_to_phys(p); WARN_ONCE(_p>>32, "STI_PTR too big"); _p; })
+#define PTR_STI(p)		( phys_to_virt((unsigned long)p) )
 
+#if 0  // def CONFIG_64BIT
+# define STI_LONGPTR(sti,p)	({ unsigned long _x = virt_to_phys(p); STI_USE_64bit ? (u32*)_x:(u32*)(_x<<32); })
+#else
+# define STI_LONGPTR(sti,p)	STI_PTR(p)
+#endif
 
 #define sti_onscreen_x(sti) (sti->glob_cfg->onscreen_x)
 #define sti_onscreen_y(sti) (sti->glob_cfg->onscreen_y)
@@ -80,8 +89,8 @@ struct sti_glob_cfg_ext {
 	 u8 friendly_boot;		/* in friendly boot mode */
 	s16 power;			/* power calculation (in Watts) */
 	s32 freq_ref;			/* frequency reference */
-	u32 sti_mem_addr;		/* pointer to global sti memory (size=sti_mem_request) */
-	u32 future_ptr; 		/* pointer to future data */
+	u32 sti_mem_addr;		/* XXX pointer to global sti memory (size=sti_mem_request) */
+	u32 *future_ptr; 		/* pointer to future data */
 };
 
 struct sti_glob_cfg {
@@ -92,13 +101,12 @@ struct sti_glob_cfg {
 	s16 offscreen_y;		/* offset height in pixels */
 	s16 total_x;			/* frame buffer width in pixels */
 	s16 total_y;			/* frame buffer height in pixels */
-	u32 region_ptrs[STI_REGION_MAX]; /* region pointers */
+	u32 region_ptrs[STI_REGION_MAX]; /* XXX region pointers */
 	s32 reent_lvl;			/* storage for reentry level value */
 	u32 save_addr;			/* where to save or restore reentrant state */
 	u32 ext_ptr;			/* pointer to extended glob_cfg data structure */
 };
 
-
 /* STI init function structs */
 
 struct sti_init_flags {
@@ -121,14 +129,14 @@ struct sti_init_flags {
 	u32 caller_kernel : 1;	/* set only by kernel for each call */
 	u32 caller_other : 1;	/* set only by non-[BR/K] caller */
 	u32 pad	: 14;		/* pad to word boundary */
-	u32 future_ptr; 	/* pointer to future data */
+	u32 *future_ptr; 	/* pointer to future data */
 };
 
 struct sti_init_inptr_ext {
 	u8  config_mon_type;	/* configure to monitor type */
 	u8  pad[1];		/* pad to word boundary */
 	u16 inflight_data;	/* inflight data possible on PCI */
-	u32 future_ptr; 	/* pointer to future data */
+	u32 *future_ptr; 	/* pointer to future data */
 };
 
 struct sti_init_inptr {
@@ -140,7 +148,7 @@ struct sti_init_inptr {
 struct sti_init_outptr {
 	s32 errno;		/* error number on failure */
 	s32 text_planes;	/* number of planes used for text */
-	u32 future_ptr; 	/* pointer to future data */
+	u32 *future_ptr; 	/* pointer to future data */
 };
 
 
@@ -150,17 +158,17 @@ struct sti_init_outptr {
 struct sti_conf_flags {
 	u32 wait : 1;		/* should routine idle wait or not */
 	u32 pad : 31;		/* pad to word boundary */
-	u32 future_ptr; 	/* pointer to future data */
+	u32 *future_ptr; 	/* pointer to future data */
 };
 
 struct sti_conf_inptr {
-	u32 future_ptr; 	/* pointer to future data */
+	u32 *future_ptr; 	/* pointer to future data */
 };
 
 struct sti_conf_outptr_ext {
 	u32 crt_config[3];	/* hardware specific X11/OGL information */	
 	u32 crt_hdw[3];
-	u32 future_ptr;
+	u32 *future_ptr;
 };
 
 struct sti_conf_outptr {
@@ -214,18 +222,18 @@ struct sti_rom {
 	u32 inq_conf;
 	u32 set_cm_entry;
 	u32 dma_ctrl;
-	 u8 res040[7 * 4];
+	u32 res040[7];
 	
-	u32 init_graph_addr;
-	u32 state_mgmt_addr;
-	u32 font_unp_addr;
-	u32 block_move_addr;
-	u32 self_test_addr;
-	u32 excep_hdlr_addr;
-	u32 inq_conf_addr;
-	u32 set_cm_entry_addr;
-	u32 image_unpack_addr;
-	u32 pa_risx_addrs[7];
+	u32 init_graph_64bit;
+	u32 state_mgmt_64bit;
+	u32 font_unp_64bit;
+	u32 block_move_64bit;
+	u32 self_test_64bit;
+	u32 excep_hdlr_64bit;
+	u32 inq_conf_64bit;
+	u32 set_cm_entry_64bit;
+	u32 image_unpack_64bit;
+	u32 pa_risx_64bits[7];
 };
 
 struct sti_rom_font {
@@ -256,25 +264,25 @@ struct sti_cooked_rom {
 /* STI font printing function structs */
 
 struct sti_font_inptr {
-	u32 font_start_addr;	/* address of font start */
+	u32 font_start_addr;	/* XXX address of font start */
 	s16 index;		/* index into font table of character */
 	u8 fg_color;		/* foreground color of character */
 	u8 bg_color;		/* background color of character */
 	s16 dest_x;		/* X location of character upper left */
 	s16 dest_y;		/* Y location of character upper left */
-	u32 future_ptr; 	/* pointer to future data */
+	u32 *future_ptr; 	/* pointer to future data */
 };
 
 struct sti_font_flags {
 	u32 wait : 1;		/* should routine idle wait or not */
 	u32 non_text : 1;	/* font unpack/move in non_text planes =1, text =0 */
 	u32 pad : 30;		/* pad to word boundary */
-	u32 future_ptr; 	/* pointer to future data */
+	u32 *future_ptr; 	/* pointer to future data */
 };
 	
 struct sti_font_outptr {
 	s32 errno;		/* error number on failure */
-	u32 future_ptr; 	/* pointer to future data */
+	u32 *future_ptr; 	/* pointer to future data */
 };
 
 /* STI blockmove structs */
@@ -285,7 +293,7 @@ struct sti_blkmv_flags {
 	u32 clear : 1;		/* clear during move? */
 	u32 non_text : 1;	/* block move in non_text planes =1, text =0 */
 	u32 pad : 28;		/* pad to word boundary */
-	u32 future_ptr; 	/* pointer to future data */
+	u32 *future_ptr; 	/* pointer to future data */
 };
 
 struct sti_blkmv_inptr {
@@ -297,15 +305,43 @@ struct sti_blkmv_inptr {
 	s16 dest_y;		/* dest upper left pixel y location */
 	s16 width;		/* block width in pixels */
 	s16 height;		/* block height in pixels */
-	u32 future_ptr; 	/* pointer to future data */
+	u32 *future_ptr; 	/* pointer to future data */
 };
 
 struct sti_blkmv_outptr {
 	s32 errno;		/* error number on failure */
-	u32 future_ptr; 	/* pointer to future data */
+	u32 *future_ptr; 	/* pointer to future data */
 };
 
 
+/* this internal struct needs to be allocated in low_mem (<4GB)
+ * if used with 32bit STI */
+
+struct sti_all_data {
+	struct sti_glob_cfg glob_cfg;
+	struct sti_glob_cfg_ext glob_cfg_ext;
+
+	struct sti_conf_inptr		inq_inptr;
+	struct sti_conf_outptr		inq_outptr; /* configuration */
+	struct sti_conf_outptr_ext	inq_outptr_ext;
+
+	struct sti_init_inptr_ext	init_inptr_ext;
+	struct sti_init_inptr		init_inptr;
+	struct sti_init_outptr		init_outptr;
+
+	struct sti_blkmv_inptr		blkmv_inptr;
+	struct sti_blkmv_outptr		blkmv_outptr;
+
+	struct sti_font_inptr		font_inptr;
+	struct sti_font_outptr		font_outptr;
+
+	/* leave as last entries */
+	unsigned long save_addr[1024 / sizeof(unsigned long)];
+	   /* min 256 bytes which is STI default, max sti->sti_mem_request */
+	unsigned long sti_mem_addr[256 / sizeof(unsigned long)];
+	/* do not add something below here ! */
+};
+
 /* internal generic STI struct */
 
 struct sti_struct {
@@ -320,6 +356,7 @@ struct sti_struct {
 
 	struct sti_cooked_rom *rom;
 
+	int use_64bit;	/* enabled, if 64bit sti functions are being called. */
 	unsigned long font_unpmv;
 	unsigned long block_move;
 	unsigned long init_graph;
@@ -330,11 +367,9 @@ struct sti_struct {
 	region_t regions[STI_REGION_MAX];
 	unsigned long regions_phys[STI_REGION_MAX];
 
-	struct sti_glob_cfg *glob_cfg;
-	struct sti_cooked_font *font;	/* ptr to selected font (cooked) */
+	struct sti_glob_cfg *glob_cfg;	/* points into sti_all_data */
 
-	struct sti_conf_outptr outptr; /* configuration */
-	struct sti_conf_outptr_ext outptr_ext;
+	struct sti_cooked_font *font;	/* ptr to selected font (cooked) */
 
 	struct pci_dev *pd;
 
@@ -343,6 +378,9 @@ struct sti_struct {
 
 	/* pointer to the fb_info where this STI device is used */
 	struct fb_info *info;
+
+	/* pointer to all internal data */
+	struct sti_all_data *sti_data;
 };
 
 
@@ -350,6 +388,13 @@ struct sti_struct {
 
 struct sti_struct *sti_get_rom(unsigned int index); /* 0: default sti */
 
+
+/* sticore main function to call STI firmware */
+
+int sti_call(const struct sti_struct *sti, unsigned long func, const void *flags,
+		void *inptr, void *outptr, struct sti_glob_cfg *glob_cfg);
+
+
 /* functions to call the STI ROM directly */
 
 void sti_putc(struct sti_struct *sti, int c, int y, int x);
--
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From - Thu Nov 08 21:09:52 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc updates for v3.13
Date: Fri, 8 Nov 2013 23:05:58 +0100
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/5463>

Hi Linus,

Please pull the parisc architecture updates for 3.13-rc1 from

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.13

which contains the following main features:

- a bugfix for sticon (parisc text console driver) to not crash the
  64bit kernel on machines with more than 4GB RAM
- added kernel audit support
- made udelay() implementation SMP-safe
- "make install" now does not depend on vmlinux
- added defconfigs for 32- and 64-kernels

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (10):
      parisc: provide macro to create exception table entries
      parisc: add kernel audit feature
      parisc: make "make install" not depend on vmlinux
      parisc: make udelay() SMP-safe
      parisc: do not count IPI calls twice
      parisc: correctly display number of active CPUs
      parisc: implement full version of access_ok()
      parisc: signal fixup - SIGBUS vs. SIGSEGV
      parisc: sticon - unbreak on 64bit kernel
      parisc: add generic 32- and 64-bit defconfigs

Michael Opdenacker (1):
      parisc: remove duplicate define

 arch/parisc/Kconfig                         |   3 +
 arch/parisc/Makefile                        |  22 +-
 arch/parisc/configs/generic-32bit_defconfig | 328 ++++++++++++++++++++++++++
 arch/parisc/configs/generic-64bit_defconfig | 346 ++++++++++++++++++++++++++++
 arch/parisc/include/asm/assembly.h          |  12 +
 arch/parisc/include/asm/delay.h             |  41 +---
 arch/parisc/include/asm/hardirq.h           |   1 -
 arch/parisc/include/asm/ptrace.h            |   4 +
 arch/parisc/include/asm/thread_info.h       |   4 +-
 arch/parisc/include/asm/uaccess.h           |  53 ++++-
 arch/parisc/install.sh                      |  44 +++-
 arch/parisc/kernel/Makefile                 |   4 +-
 arch/parisc/kernel/audit.c                  |  81 +++++++
 arch/parisc/kernel/compat_audit.c           |  40 ++++
 arch/parisc/kernel/irq.c                    |   4 -
 arch/parisc/kernel/ptrace.c                 |  26 ++-
 arch/parisc/kernel/setup.c                  |   8 +-
 arch/parisc/kernel/smp.c                    |   5 -
 arch/parisc/kernel/syscall.S                |   6 +-
 arch/parisc/lib/Makefile                    |   2 +-
 arch/parisc/lib/delay.c                     |  73 ++++++
 arch/parisc/lib/lusercopy.S                 |  10 +-
 arch/parisc/math-emu/float.h                |   1 -
 arch/parisc/mm/fault.c                      |  24 +-
 drivers/video/console/sticore.c             | 166 ++++++++-----
 drivers/video/sticore.h                     |  62 ++++-
 drivers/video/stifb.c                       |  10 +-
 init/Kconfig                                |   2 +-
 28 files changed, 1214 insertions(+), 168 deletions(-)
 create mode 100644 arch/parisc/configs/generic-32bit_defconfig
 create mode 100644 arch/parisc/configs/generic-64bit_defconfig
 create mode 100644 arch/parisc/kernel/audit.c
 create mode 100644 arch/parisc/kernel/compat_audit.c
 create mode 100644 arch/parisc/lib/delay.c
--
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From - Thu Nov 08 21:09:52 2018
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Cc: John David Anglin <dave.anglin@bell.net>,
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	Thibaut VARENE <T-Bone@parisc-linux.org>
To: "Craig Lamparter (ISS Linux)" <craig.lamparter@hp.com>,
	dann frazier <dannf@dannf.org>
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On 11/05/2013 04:58 AM, Craig Lamparter (ISS Linux) wrote:
> Just to confirm Dan's comment, HPIT is taking ownership of just
> about everything, so it's harder to do g-jobs like this.  Even
> our internal labs are being moved to isolated subnets, for better or
> worse.  A University or co-lo system is probably going to have
> better throughput than our current R&D edge compartments.

Just as an update:
I opened a "hosting request ticket" at osuosl.org on 11/05/2013 for the A500.
No answer yet, but they mentioned that it may take some time (up to a week?).

Then, what will happen to to domain name parisc-linux.org ?
According to whois, it belongs to HP/Ft.Collins.
Will HP keep this domain name?

Otherwise Thibaut Varene (CC'ed) offered to take over the domain and take care 
of it at least for a year.
Who would be a contact for such a transition?

Helge
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From: dann frazier <dannf@dannf.org>
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Subject: Re: parisc-linux.org losing hw hosting after this month
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On Fri, Nov 08, 2013 at 11:22:32PM +0100, Helge Deller wrote:
> On 11/05/2013 04:58 AM, Craig Lamparter (ISS Linux) wrote:
> > Just to confirm Dan's comment, HPIT is taking ownership of just
> > about everything, so it's harder to do g-jobs like this.  Even
> > our internal labs are being moved to isolated subnets, for better or
> > worse.  A University or co-lo system is probably going to have
> > better throughput than our current R&D edge compartments.
> 
> Just as an update:
> I opened a "hosting request ticket" at osuosl.org on 11/05/2013 for the A500.
> No answer yet, but they mentioned that it may take some time (up to a week?).
> 
> Then, what will happen to to domain name parisc-linux.org ?
> According to whois, it belongs to HP/Ft.Collins.
> Will HP keep this domain name?
> 
> Otherwise Thibaut Varene (CC'ed) offered to take over the domain and take care 
> of it at least for a year.
> Who would be a contact for such a transition?

Taggart: is that you?
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dann frazier writes:

> Taggart: is that you?

Hey whadda know it is! And somehow my brain remembered the login and 
password despite not having recorded it somewhere.

I have unlocked the domain and I'll keep an eye out for requests asking me 
to approve the transfer to Thibaut.

-- 
Matt Taggart
matt@lackof.org


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From - Thu Nov 08 21:09:52 2018
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Le 9 nov. 2013 =E0 09:20, Matt Taggart <matt@lackof.org> a =E9crit :

> dann frazier writes:
>=20
>> Taggart: is that you?
>=20
> Hey whadda know it is! And somehow my brain remembered the login and=20
> password despite not having recorded it somewhere.
>=20
> I have unlocked the domain and I'll keep an eye out for requests aski=
ng me=20
> to approve the transfer to Thibaut.

Turns out it=92s not gonna be that easy. I suspect here=92s why:
Expiration Date:09-Aug-2014 23:07:58 UTC

Until then, it=92s presumably impossible to move the domain to a new ow=
ner. I=92ve just tried with my registrar of choice (ovh.com) and it say=
s that I can only move the domain there *without* changing ownership=85

As a temporary workaround, I could give you the IP addresses of my DNS =
servers (once I=92ve readied them for handling p-l.o, which, to begin w=
ith, means I have to copy the existing zone), which would for all pract=
ical purposes give me control over the domain until it can be properly =
moved next summer (which must not be forgotten, especially now that you=
=92ve unlocked the domain).

What do you think?

T-Bone
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From - Thu Nov 08 21:09:52 2018
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Cc: Matt Taggart <matt@lackof.org>, dann frazier <dannf@dannf.org>,
	Helge Deller <deller@gmx.de>,
	"Craig Lamparter (ISS Linux)" <craig.lamparter@hp.com>,
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 <T-Bone@parisc-linux.org>
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Thibaut Var=E8ne writes:
> Until then, it's presumably impossible to move the domain to a new
> owner. I've just tried with my registrar of choice (ovh.com) and it
> says that I can only move the domain there *without* changing ownersh=
ip

Weird. So does that mean to change ownership either you are going to ha=
ve=20
to move it within my registrar or I am going to have to move it within=20
yours?

> As a temporary workaround, I could give you the IP addresses of my DN=
S
> servers (once I've readied them for handling p-l.o, which, to begin
> with, means I have to copy the existing zone), which would for all
> practical purposes give me control over the domain until it can be
> properly moved next summer (which must not be forgotten, especially n=
ow
> that you've unlocked the domain).

I can change the nameservers (or anything else about the domain) whenev=
er,=20
just let me know. taggart@OFTC

--=20
Matt Taggart
matt@lackof.org


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From: Helge Deller <deller@gmx.de>
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Subject: Re: parisc-linux.org losing hw hosting after this month
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To: Matt Taggart <matt@lackof.org>,
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On 11/09/2013 08:17 PM, Matt Taggart wrote:
> Thibaut Var=E8ne writes:
>> Until then, it's presumably impossible to move the domain to a new
>> owner. I've just tried with my registrar of choice (ovh.com) and it
>> says that I can only move the domain there *without* changing owners=
hip
>=20
> Weird. So does that mean to change ownership either you are going to =
have=20
> to move it within my registrar or I am going to have to move it withi=
n=20
> yours?
>=20
>> As a temporary workaround, I could give you the IP addresses of my D=
NS
>> servers (once I've readied them for handling p-l.o, which, to begin
>> with, means I have to copy the existing zone), which would for all
>> practical purposes give me control over the domain until it can be
>> properly moved next summer (which must not be forgotten, especially =
now
>> that you've unlocked the domain).
>=20
> I can change the nameservers (or anything else about the domain) when=
ever,=20
> just let me know. taggart@OFTC

Just as a side-note:
Could we let it run as-is as long as possible? At least until the A500 =
is really turned off?

Dave & me have the parisc-linux debian dpkg repository still on the A50=
0 which is still in=20
heavy use until the debian-ports repository is mostly filled...

Helge
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On 9-Nov-13, at 3:25 PM, Helge Deller wrote:

> On 11/09/2013 08:17 PM, Matt Taggart wrote:
>> Thibaut Var=E8ne writes:
>>> Until then, it's presumably impossible to move the domain to a new
>>> owner. I've just tried with my registrar of choice (ovh.com) and it
>>> says that I can only move the domain there *without* changing =20
>>> ownership
>>
>> Weird. So does that mean to change ownership either you are going =20
>> to have
>> to move it within my registrar or I am going to have to move it =20
>> within
>> yours?
>>
>>> As a temporary workaround, I could give you the IP addresses of my =
=20
>>> DNS
>>> servers (once I've readied them for handling p-l.o, which, to begin
>>> with, means I have to copy the existing zone), which would for all
>>> practical purposes give me control over the domain until it can be
>>> properly moved next summer (which must not be forgotten, =20
>>> especially now
>>> that you've unlocked the domain).
>>
>> I can change the nameservers (or anything else about the domain) =20
>> whenever,
>> just let me know. taggart@OFTC
>
> Just as a side-note:
> Could we let it run as-is as long as possible? At least until the =20
> A500 is really turned off?
>
> Dave & me have the parisc-linux debian dpkg repository still on the =20
> A500 which is still in
> heavy use until the debian-ports repository is mostly filled...


I want to setup a personal mirror while it's still on to facilitate =20
the transition to ports.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
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On 11/09/2013 09:33 PM, John David Anglin wrote:
> On 9-Nov-13, at 3:25 PM, Helge Deller wrote:
>=20
>> On 11/09/2013 08:17 PM, Matt Taggart wrote:
>>> Thibaut Var=E8ne writes:
>>>> Until then, it's presumably impossible to move the domain to a new
>>>> owner. I've just tried with my registrar of choice (ovh.com) and i=
t
>>>> says that I can only move the domain there *without* changing owne=
rship
>>>
>>> Weird. So does that mean to change ownership either you are going t=
o have
>>> to move it within my registrar or I am going to have to move it wit=
hin
>>> yours?
>>>
>>>> As a temporary workaround, I could give you the IP addresses of my=
 DNS
>>>> servers (once I've readied them for handling p-l.o, which, to begi=
n
>>>> with, means I have to copy the existing zone), which would for all
>>>> practical purposes give me control over the domain until it can be
>>>> properly moved next summer (which must not be forgotten, especiall=
y now
>>>> that you've unlocked the domain).
>>>
>>> I can change the nameservers (or anything else about the domain) wh=
enever,
>>> just let me know. taggart@OFTC
>>
>> Just as a side-note:
>> Could we let it run as-is as long as possible? At least until the A5=
00 is really turned off?
>>
>> Dave & me have the parisc-linux debian dpkg repository still on the =
A500 which is still in
>> heavy use until the debian-ports repository is mostly filled...
>=20
>=20
> I want to setup a personal mirror while it's still on to facilitate t=
he transition to ports.

Ok, but will you make your mirror visible to the world via http/ftp or =
will you keep it internal for you privately?=20

Helge
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X-Mozilla-Keys:                                                                                 
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On 9-Nov-13, at 3:40 PM, Helge Deller wrote:

> On 11/09/2013 09:33 PM, John David Anglin wrote:
>> On 9-Nov-13, at 3:25 PM, Helge Deller wrote:
>>
>>> On 11/09/2013 08:17 PM, Matt Taggart wrote:
>>>> Thibaut Var=E8ne writes:
>>>>> Until then, it's presumably impossible to move the domain to a ne=
w
>>>>> owner. I've just tried with my registrar of choice (ovh.com) and =
=20
>>>>> it
>>>>> says that I can only move the domain there *without* changing =20
>>>>> ownership
>>>>
>>>> Weird. So does that mean to change ownership either you are going =
=20
>>>> to have
>>>> to move it within my registrar or I am going to have to move it =20
>>>> within
>>>> yours?
>>>>
>>>>> As a temporary workaround, I could give you the IP addresses of =20
>>>>> my DNS
>>>>> servers (once I've readied them for handling p-l.o, which, to =20
>>>>> begin
>>>>> with, means I have to copy the existing zone), which would for al=
l
>>>>> practical purposes give me control over the domain until it can b=
e
>>>>> properly moved next summer (which must not be forgotten, =20
>>>>> especially now
>>>>> that you've unlocked the domain).
>>>>
>>>> I can change the nameservers (or anything else about the domain) =20
>>>> whenever,
>>>> just let me know. taggart@OFTC
>>>
>>> Just as a side-note:
>>> Could we let it run as-is as long as possible? At least until the =20
>>> A500 is really turned off?
>>>
>>> Dave & me have the parisc-linux debian dpkg repository still on =20
>>> the A500 which is still in
>>> heavy use until the debian-ports repository is mostly filled...
>>
>>
>> I want to setup a personal mirror while it's still on to facilitate =
=20
>> the transition to ports.
>
> Ok, but will you make your mirror visible to the world via http/ftp =20
> or will you keep it internal for you privately?


I wasn't planning to make it visible because my total uploads and =20
downloads are limited by my ISP.

Dave
--
John David Anglin	dave.anglin@bell.net



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Le 9 nov. 2013 =E0 20:17, Matt Taggart <matt@lackof.org> a =E9crit :

> Thibaut Var=E8ne writes:
>> Until then, it's presumably impossible to move the domain to a new
>> owner. I've just tried with my registrar of choice (ovh.com) and it
>> says that I can only move the domain there *without* changing owners=
hip
>=20
> Weird. So does that mean to change ownership either you are going to =
have=20
> to move it within my registrar or I am going to have to move it withi=
n=20
> yours?

No, the thing is that when domains expire, you have IIRC a 30-day grace=
 period where you can gracefully renew or transfer them. That=92s what =
we=92re looking for, I think, and since p-l.o expires in august 2014, w=
e=92re quite a bit too early.
>=20
>> As a temporary workaround, I could give you the IP addresses of my D=
NS
>> servers (once I've readied them for handling p-l.o, which, to begin
>> with, means I have to copy the existing zone), which would for all
>> practical purposes give me control over the domain until it can be
>> properly moved next summer (which must not be forgotten, especially =
now
>> that you've unlocked the domain).
>=20
> I can change the nameservers (or anything else about the domain) when=
ever,=20
> just let me know. taggart@OFTC

OK, I=92ll try to prepare everything next week and will ping you then, =
thanks!

T-Bone--
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Le 9 nov. 2013 =E0 21:25, Helge Deller <deller@gmx.de> a =E9crit :

> On 11/09/2013 08:17 PM, Matt Taggart wrote:
>> Thibaut Var=E8ne writes:
>>> Until then, it's presumably impossible to move the domain to a new
>>> owner. I've just tried with my registrar of choice (ovh.com) and it
>>> says that I can only move the domain there *without* changing owner=
ship
>>=20
>> Weird. So does that mean to change ownership either you are going to=
 have=20
>> to move it within my registrar or I am going to have to move it with=
in=20
>> yours?
>>=20
>>> As a temporary workaround, I could give you the IP addresses of my =
DNS
>>> servers (once I've readied them for handling p-l.o, which, to begin
>>> with, means I have to copy the existing zone), which would for all
>>> practical purposes give me control over the domain until it can be
>>> properly moved next summer (which must not be forgotten, especially=
 now
>>> that you've unlocked the domain).
>>=20
>> I can change the nameservers (or anything else about the domain) whe=
never,=20
>> just let me know. taggart@OFTC
>=20
> Just as a side-note:
> Could we let it run as-is as long as possible? At least until the A50=
0 is really turned off?

My plan is to setup new DNSes with the current situation to start with,=
 and have Matt register them as zone DNS. That=92ll be transparent for =
everyone, situation unchanged, until the A500 is powered off, at which =
point we can devise a new setup. As I told you, my primary concern is w=
ith email, so I=92ll have that covered :)
>=20
> Dave & me have the parisc-linux debian dpkg repository still on the A=
500 which is still in=20
> heavy use until the debian-ports repository is mostly filled=85

I might be able to *temporarily* (emphasis on that word) host it, provi=
ded it=92s not =AB too big =BB, but as I said, specific protocols such =
as FTP or GIT are not possible (only HTTP).

HTH

T-Bone--
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Hi Thibaut,

On 11/09/2013 10:26 PM, Thibaut Var=E8ne wrote:
>> Just as a side-note: Could we let it run as-is as long as possible?
>> At least until the A500 is really turned off?
>=20
> My plan is to setup new DNSes with the current situation to start
> with, and have Matt register them as zone DNS. That=92ll be transpare=
nt
> for everyone, situation unchanged, until the A500 is powered off, at
> which point we can devise a new setup. As I told you, my primary
> concern is with email, so I=92ll have that covered :)

That's good!

>> Dave & me have the parisc-linux debian dpkg repository still on the
>> A500 which is still in heavy use until the debian-ports repository
>> is mostly filled=85
>=20
> I might be able to *temporarily* (emphasis on that word) host it,
> provided it=92s not =AB too big =BB, but as I said, specific protocol=
s such
> as FTP or GIT are not possible (only HTTP).

HTTP would be absolutely fine. Actually, this is what we currently use.

I just checked the archive. It's currently - including temporary boot-d=
isk-images - 19GB.
I don't think it will grow a lot during the next weeks/months, and give=
n the
fact that there aren't so many parisc-users, the load will probably not
be high.

Helge

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Cc: =?WINDOWS-1252?Q?Thibaut_Var=E8ne?= <T-Bone@parisc-linux.org>,
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On 9-Nov-13, at 4:31 PM, Helge Deller wrote:

>> I might be able to *temporarily* (emphasis on that word) host it,
>> provided it=92s not =AB too big =BB, but as I said, specific protoco=
ls such
>> as FTP or GIT are not possible (only HTTP).
>
> HTTP would be absolutely fine. Actually, this is what we currently =20
> use.
>
> I just checked the archive. It's currently - including temporary =20
> boot-disk-images - 19GB.
> I don't think it will grow a lot during the next weeks/months, and =20
> given the
> fact that there aren't so many parisc-users, the load will probably =20
> not
> be high.

I think we should freeze the repository in its current state.

I'm no longer building "all" packages, just "hppa" packages.  This is =20
what's needed
for upload to ports.  Some "hppa" packages depend on a specific =20
version of an "all"
package, so continuing to upload will break dependencies.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: pointless code in probe_kernel_read
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Hi Helge

I noted that you created this function in commit 
db080f9c530f78dad661257885a1893506077068

long probe_kernel_read(void *dst, const void *src, size_t size)
{
        unsigned long addr = (unsigned long)src;

        if (size < 0 || addr < PAGE_SIZE)
                return -EFAULT;

        /* check for I/O space F_EXTEND(0xfff00000) access as well? */

        return __probe_kernel_read(dst, src, size);
}

size_t is unsigned, so comparison size < 0 doesn't make sense. What 
exactly did you mean by this test?

Mikulas
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Cc: Matt Taggart <matt@lackof.org>, dann frazier <dannf@dannf.org>,
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On 9 nov. 2013, at 22:31, Helge Deller <deller@gmx.de> wrote:

> Hi Thibaut,
>=20
> On 11/09/2013 10:26 PM, Thibaut Var=E8ne wrote:
>>> Just as a side-note: Could we let it run as-is as long as possible?
>>> At least until the A500 is really turned off?
>>=20
>> My plan is to setup new DNSes with the current situation to start
>> with, and have Matt register them as zone DNS. That=92ll be transpar=
ent
>> for everyone, situation unchanged, until the A500 is powered off, at
>> which point we can devise a new setup. As I told you, my primary
>> concern is with email, so I=92ll have that covered :)
>=20
> That's good!

Quick update: the DNS transition is done, I now control the domain's DN=
S. As usual, direct complaints to /dev/null if anything breaks ;-)

That aside, regarding my upcoming plans: I'm fine with hosting followin=
g websites:
- www (as far as the main static website is concerned - NO HOMEDIRs - s=
ince I already host a mirror, it's really easy)
- wiki (already hosted by me, no change)
- ftp (web access only, provided the debian-ports part of the archive d=
oesn't grow much beyond 20G, and for as short a period of time as can b=
e achieved.)

hwdb will have to go, I just cba moving it and dealing with potential P=
HP exploits ;P
cvs will have to go too, if someone wants to archive it for posterity (=
it's about 8.4G), now would be a good time.

Regarding email, my plan is to setup a "forward-only" MTA. As far as I =
can tell, most active users of p-l.o already have a .forward setup, wit=
h the notable exception of willy (explicitly CC'd here). Of course, if =
someone wants to step up and handle p-l.o email on their own, they're w=
elcome to raise a hand ;)

NB: the people having bits of importance left in their homedir on p-l.o=
 should probably think about backing them up ASAP, these won't be moved=
 over.

Since the domain expires on August 2014, I believe this gives us suffic=
ient time to evaluate "what to do next". As far as *I* am concerned, I =
plan to have transitioned all references to my p-l.o email address (mos=
tly in source code) by then, meaning that *I* will probably not see a n=
eed to keep the domain going beyond that point. I would like to explici=
tly point out here that I commit myself to providing hosting facilities=
 as explained above UNTIL THEN, after which I reserve the right to "mov=
e on".

HINT HINT HINT: if someone wants to keep p-l.o going after that point, =
they'll have to keep that deadline in mind.
I am offering a transition as the A500 is being decommissioned, but I a=
m NOT offering a permanent solution.

=46inally, do we have an exact date as to when the A500 will be powered=
 down?

HTH,
T-Bone--
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>>>>> "Thibaut" =3D=3D Thibaut Var=C3=A8ne <T-Bone@parisc-linux.org> wr=
ites:

Thibaut> Quick update: the DNS transition is done, I now control the
Thibaut> domain's DNS. As usual, direct complaints to /dev/null if
Thibaut> anything breaks ;-)

Do you want me to continue to be secondary name server and MX or should
I turn it off?

--=20
Martin K. Petersen      http://mkp.net/




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From - Thu Nov 08 21:09:54 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: pointless code in probe_kernel_read
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To: Mikulas Patocka <mpatocka@redhat.com>
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Hi Mikulas,

On 11/11/2013 04:13 PM, Mikulas Patocka wrote:
> Hi Helge
> 
> I noted that you created this function in commit 
> db080f9c530f78dad661257885a1893506077068
> 
> long probe_kernel_read(void *dst, const void *src, size_t size)
> {
>         unsigned long addr = (unsigned long)src;
> 
>         if (size < 0 || addr < PAGE_SIZE)
>                 return -EFAULT;
> 
>         /* check for I/O space F_EXTEND(0xfff00000) access as well? */
> 
>         return __probe_kernel_read(dst, src, size);
> }
> 
> size_t is unsigned, so comparison size < 0 doesn't make sense. What 
> exactly did you mean by this test?

Of course you are right. The "size < 0" check is superfluous.
I noticed that too when the code went upstream, but I was not yet motivated
too much to remove it again - at least the compiler should optimize it out.

The second part (addr < PAGE_SIZE) is relevant though.

Helge
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From - Thu Nov 08 21:09:54 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: implement full version of access_ok()
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I pushed this patch upstream to Linus for 3.13-rc1:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=63379c135331c724d40a87b98eb62d2122981341

Now, after some more testing it seems this patch breaks userspace 
when booted with a 64bit kernel on machines >= 4GB RAM.
All my machines with less than 4GB are OK. 

So, in case someone tries 3.13-rcX, please drop this patch if your 
machine has >= 4GB RAM...

I still need to understand why it breaks and will follow up 
with a revert or a fix.

Helge

On 06/29/2013 02:03 PM, Helge Deller wrote:
> Up to now PA-RISC could live with a trivial version of access_ok().
> Our fault handlers can correctly handle fault cases.
> 
> But testcases showed that we need a better access check else we won't
> always return correct errno failure codes to userspace.
> 
> Problem showed up during 32bit userspace tests in which writev() used a
> 32bit memory area and length which would then wrap around on 64bit
> kernel.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
> index e0a8235..37ca987 100644
> --- a/arch/parisc/include/asm/uaccess.h
> +++ b/arch/parisc/include/asm/uaccess.h
> @@ -4,11 +4,14 @@
>  /*
>   * User space memory access functions
>   */
> +#include <asm/processor.h>
>  #include <asm/page.h>
>  #include <asm/cache.h>
>  #include <asm/errno.h>
>  #include <asm-generic/uaccess-unaligned.h>
>  
> +#include <linux/sched.h>
> +
>  #define VERIFY_READ 0
>  #define VERIFY_WRITE 1
>  
> @@ -33,12 +36,43 @@ extern int __get_user_bad(void);
>  extern int __put_kernel_bad(void);
>  extern int __put_user_bad(void);
>  
> -static inline long access_ok(int type, const void __user * addr,
> -		unsigned long size)
> +
> +/*
> + * Test whether a block of memory is a valid user space address.
> + * Returns 0 if the range is valid, nonzero otherwise.
> + */
> +static inline int __range_not_ok(unsigned long addr, unsigned long size,
> +				 unsigned long limit)
>  {
> -	return 1;
> +	unsigned long __newaddr = addr + size;
> +	return (__newaddr < addr || __newaddr > limit || size > limit);
>  }
>  
> +/**
> + * access_ok: - Checks if a user space pointer is valid
> + * @type: Type of access: %VERIFY_READ or %VERIFY_WRITE.  Note that
> + *        %VERIFY_WRITE is a superset of %VERIFY_READ - if it is safe
> + *        to write to a block, it is always safe to read from it.
> + * @addr: User space pointer to start of block to check
> + * @size: Size of block to check
> + *
> + * Context: User context only.  This function may sleep.
> + *
> + * Checks if a pointer to a block of memory in user space is valid.
> + *
> + * Returns true (nonzero) if the memory block may be valid, false (zero)
> + * if it is definitely invalid.
> + *
> + * Note that, depending on architecture, this function probably just
> + * checks that the pointer is in the user space range - after calling
> + * this function, memory access functions may still return -EFAULT.
> + */
> +#define access_ok(type, addr, size)					\
> +(	__chk_user_ptr(addr),						\
> +	!__range_not_ok((unsigned long) (__force void *) (addr),	\
> +			size, user_addr_max())				\
> +)
> +
>  #define put_user __put_user
>  #define get_user __get_user
>  
> @@ -218,7 +252,11 @@ extern long lstrnlen_user(const char __user *,long);
>  /*
>   * Complex access routines -- macros
>   */
> -#define user_addr_max() (~0UL)
> +#ifdef CONFIG_COMPAT
> +#define user_addr_max() (TASK_SIZE)
> +#else
> +#define user_addr_max() (DEFAULT_TASK_SIZE)
> +#endif
>  
>  #define strnlen_user lstrnlen_user
>  #define strlen_user(str) lstrnlen_user(str, 0x7fffffffL)
> 

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On 11/11/2013 08:43 PM, Thibaut Var=E8ne wrote:
> Quick update: the DNS transition is done, I now control the domain's
> DNS. As usual, direct complaints to /dev/null if anything breaks ;-)

Very good.
=20
> That aside, regarding my upcoming plans: I'm fine with hosting
> following websites: - www (as far as the main static website is
> concerned - NO HOMEDIRs - since I already host a mirror, it's really
> easy) - wiki (already hosted by me, no change) - ftp (web access
> only, provided the debian-ports part of the archive doesn't grow much
> beyond 20G, and for as short a period of time as can be achieved.)

Ok.
=20
> hwdb will have to go, I just cba moving it and dealing with potential
> PHP exploits ;P cvs will have to go too, if someone wants to archive
> it for posterity (it's about 8.4G), now would be a good time.

Ok.
I will not miss the hwdb and cvs.=20

> Regarding email, my plan is to setup a "forward-only" MTA. As far as
> I can tell, most active users of p-l.o already have a .forward setup,
> with the notable exception of willy (explicitly CC'd here). Of
> course, if someone wants to step up and handle p-l.o email on their
> own, they're welcome to raise a hand ;)

Ok.

> Since the domain expires on August 2014, I believe this gives us
> sufficient time to evaluate "what to do next". As far as *I* am
> concerned, I plan to have transitioned all references to my p-l.o
> email address (mostly in source code) by then, meaning that *I* will
> probably not see a need to keep the domain going beyond that point. I
> would like to explicitly point out here that I commit myself to
> providing hosting facilities as explained above UNTIL THEN, after
> which I reserve the right to "move on".

That's OK for me.
Just let us know.
Will you add a reminder to your calendar?
=20
> HINT HINT HINT: if someone wants to keep p-l.o going after that
> point, they'll have to keep that deadline in mind. I am offering a
> transition as the A500 is being decommissioned, but I am NOT offering
> a permanent solution.

Sure.
=20
> Finally, do we have an exact date as to when the A500 will be powered
> down?

Again, I'm happy as long as it can live.
Sadly still no feedback from OSUOSL.

Helge
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Signed-off-by: Helge Deller <deller@gmx.de>
CC: Mikulas Patocka <mpatocka@redhat.com>

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index b5507ec..32f0303 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -529,7 +529,7 @@ long probe_kernel_read(void *dst, const void *src, size_t size)
 {
 	unsigned long addr = (unsigned long)src;
 
-	if (size < 0 || addr < PAGE_SIZE)
+	if (addr < PAGE_SIZE)
 		return -EFAULT;
 
 	/* check for I/O space F_EXTEND(0xfff00000) access as well? */
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Newsgroups: gmane.linux.ports.parisc
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Cc: Thibaut =?ISO-8859-1?Q?Var=E8ne?= <T-Bone@parisc-linux.org>,
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On Tue, 2013-11-12 at 20:47 +0100, Helge Deller wrote:
> Again, I'm happy as long as it can live.
> Sadly still no feedback from OSUOSL.

If you filled in the form over a week ago, ping Lance directly.

James


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From - Thu Nov 08 21:09:54 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.aio.general,gmane.linux.kernel
Subject: [PATCH] aio: fix D-cache aliasing issues
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When a user page mapping is released via kunmap*() functions, the D-cache needs
to be flushed via flush_dcache_page() to avoid D-cache aliasing issues.

This patch fixes aio on the parisc platform (and probably others).

Signed-off-by: Helge Deller <deller@gmx.de>
To: Benjamin LaHaise <bcrl@kvack.org>
To: linux-aio@kvack.org
Cc: stable@vger.kernel.org    # 3.12+

diff --git a/fs/aio.c b/fs/aio.c
index 823efcb..2181821 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -514,6 +514,7 @@ static void free_ioctx(struct work_struct *work)
 		atomic_add(avail, &ctx->reqs_available);
 		ring->head = ring->tail;
 		kunmap_atomic(ring);
+		flush_dcache_page(ctx->ring_pages[0]);
 
 		if (atomic_read(&ctx->reqs_available) >= ctx->nr_events - 1)
 			break;
@@ -568,6 +569,7 @@ static int ioctx_add_table(struct kioctx *ctx, struct mm_struct *mm)
 					ring = kmap_atomic(ctx->ring_pages[0]);
 					ring->id = ctx->id;
 					kunmap_atomic(ring);
+					flush_dcache_page(ctx->ring_pages[0]);
 					return 0;
 				}
 
@@ -1032,6 +1034,7 @@ static long aio_read_events_ring(struct kioctx *ctx,
 	head = ring->head;
 	tail = ring->tail;
 	kunmap_atomic(ring);
+	flush_dcache_page(ctx->ring_pages[0]);
 
 	pr_debug("h%u t%u m%u\n", head, tail, ctx->nr_events);
 

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From - Thu Nov 08 21:09:54 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.aio.general,gmane.linux.kernel
Subject: Re: [PATCH] aio: fix D-cache aliasing issues
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Cc: Benjamin LaHaise <bcrl@kvack.org>, linux-aio@kvack.org,
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To: Helge Deller <deller@gmx.de>
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On Fri, 2013-11-15 at 23:05 +0100, Helge Deller wrote:
> When a user page mapping is released via kunmap*() functions, the D-cache needs
> to be flushed via flush_dcache_page() to avoid D-cache aliasing issues.
> 
> This patch fixes aio on the parisc platform (and probably others).

This should be flush_kernel_dcache_page().  flush_dcache_page() is for
full coherency but for unmap, we know the page was coherent going in and
may have been modified by the kernel, so only the kernel view needs to
be sync'd.  Technically, by the kernel API, the flush should be done
*before* unmapping.  This would have mattered on parisc until we did
flush via tmpalias which means we no-longer care if the mapping for the
flush exists or not because we always recreate it via the tmpalias
pages.

James

> Signed-off-by: Helge Deller <deller@gmx.de>
> To: Benjamin LaHaise <bcrl@kvack.org>
> To: linux-aio@kvack.org
> Cc: stable@vger.kernel.org    # 3.12+
> 
> diff --git a/fs/aio.c b/fs/aio.c
> index 823efcb..2181821 100644
> --- a/fs/aio.c
> +++ b/fs/aio.c
> @@ -514,6 +514,7 @@ static void free_ioctx(struct work_struct *work)
>  		atomic_add(avail, &ctx->reqs_available);
>  		ring->head = ring->tail;
>  		kunmap_atomic(ring);
> +		flush_dcache_page(ctx->ring_pages[0]);
>  
>  		if (atomic_read(&ctx->reqs_available) >= ctx->nr_events - 1)
>  			break;
> @@ -568,6 +569,7 @@ static int ioctx_add_table(struct kioctx *ctx, struct mm_struct *mm)
>  					ring = kmap_atomic(ctx->ring_pages[0]);
>  					ring->id = ctx->id;
>  					kunmap_atomic(ring);
> +					flush_dcache_page(ctx->ring_pages[0]);
>  					return 0;
>  				}
>  
> @@ -1032,6 +1034,7 @@ static long aio_read_events_ring(struct kioctx *ctx,
>  	head = ring->head;
>  	tail = ring->tail;
>  	kunmap_atomic(ring);
> +	flush_dcache_page(ctx->ring_pages[0]);
>  
>  	pr_debug("h%u t%u m%u\n", head, tail, ctx->nr_events);
>  
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.aio.general,gmane.linux.kernel
Subject: Re: [PATCH] aio: fix D-cache aliasing issues
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On Fri, Nov 15, 2013 at 02:42:05PM -0800, James Bottomley wrote:
> On Fri, 2013-11-15 at 23:05 +0100, Helge Deller wrote:
> > When a user page mapping is released via kunmap*() functions, the D-cache needs
> > to be flushed via flush_dcache_page() to avoid D-cache aliasing issues.
> > 
> > This patch fixes aio on the parisc platform (and probably others).
> 
> This should be flush_kernel_dcache_page().  flush_dcache_page() is for
> full coherency but for unmap, we know the page was coherent going in and
> may have been modified by the kernel, so only the kernel view needs to
> be sync'd.  Technically, by the kernel API, the flush should be done
> *before* unmapping.  This would have mattered on parisc until we did
> flush via tmpalias which means we no-longer care if the mapping for the
> flush exists or not because we always recreate it via the tmpalias
> pages.

On ARM, flush_kernel_dcache_page() actually assumes that the page is
mapped.  It avoids double flushing of highmem pages by not flushing
in those cases where kunmap_atomic() already takes care of flushing.


- Simon
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On Sat, Nov 16, 2013 at 09:07:18PM +0100, Simon Baatz wrote:
> On Fri, Nov 15, 2013 at 02:42:05PM -0800, James Bottomley wrote:
> > On Fri, 2013-11-15 at 23:05 +0100, Helge Deller wrote:
> > > When a user page mapping is released via kunmap*() functions, the D-cache needs
> > > to be flushed via flush_dcache_page() to avoid D-cache aliasing issues.
> > > 
> > > This patch fixes aio on the parisc platform (and probably others).
> > 
> > This should be flush_kernel_dcache_page().  flush_dcache_page() is for
> > full coherency but for unmap, we know the page was coherent going in and
> > may have been modified by the kernel, so only the kernel view needs to
> > be sync'd.  Technically, by the kernel API, the flush should be done
> > *before* unmapping.  This would have mattered on parisc until we did
> > flush via tmpalias which means we no-longer care if the mapping for the
> > flush exists or not because we always recreate it via the tmpalias
> > pages.
> 
> On ARM, flush_kernel_dcache_page() actually assumes that the page is
> mapped.  It avoids double flushing of highmem pages by not flushing
> in those cases where kunmap_atomic() already takes care of flushing.

Helge -- are you going to resubmit a version of this patch that makes the 
recommended change?

		-ben

> 
> 
> - Simon

-- 
"Thought is the essence of where you are now."

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On Sat, 2013-11-16 at 21:07 +0100, Simon Baatz wrote:
> On Fri, Nov 15, 2013 at 02:42:05PM -0800, James Bottomley wrote:
> > On Fri, 2013-11-15 at 23:05 +0100, Helge Deller wrote:
> > > When a user page mapping is released via kunmap*() functions, the D-cache needs
> > > to be flushed via flush_dcache_page() to avoid D-cache aliasing issues.
> > > 
> > > This patch fixes aio on the parisc platform (and probably others).
> > 
> > This should be flush_kernel_dcache_page().  flush_dcache_page() is for
> > full coherency but for unmap, we know the page was coherent going in and
> > may have been modified by the kernel, so only the kernel view needs to
> > be sync'd.  Technically, by the kernel API, the flush should be done
> > *before* unmapping.  This would have mattered on parisc until we did
> > flush via tmpalias which means we no-longer care if the mapping for the
> > flush exists or not because we always recreate it via the tmpalias
> > pages.
> 
> On ARM, flush_kernel_dcache_page() actually assumes that the page is
> mapped.  It avoids double flushing of highmem pages by not flushing
> in those cases where kunmap_atomic() already takes care of flushing.

On Parisc, kmap/kunmap is currently a nop.  However, if we ever
implemented highmem, we would also need to flush before we unmap, which
is why the flush needs to go before the kunmap.

I've got to say on all of this, we've implemented the most inane set of
primitives.  It would be much easier if kmap/kunmap just took care of
all of this.  kmap should bring userspace into coherence (because why
else would we be kmapping) and kunmap should force coherence on the
kernel address ... and then no-one would need to worry when to and when
not to flush.

James


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On 16-Nov-13, at 5:06 PM, James Bottomley wrote:

> On Sat, 2013-11-16 at 21:07 +0100, Simon Baatz wrote:
>> On Fri, Nov 15, 2013 at 02:42:05PM -0800, James Bottomley wrote:
>>> On Fri, 2013-11-15 at 23:05 +0100, Helge Deller wrote:
>>>> When a user page mapping is released via kunmap*() functions, the  
>>>> D-cache needs
>>>> to be flushed via flush_dcache_page() to avoid D-cache aliasing  
>>>> issues.
>>>>
>>>> This patch fixes aio on the parisc platform (and probably others).
>>>
>>> This should be flush_kernel_dcache_page().  flush_dcache_page() is  
>>> for
>>> full coherency but for unmap, we know the page was coherent going  
>>> in and
>>> may have been modified by the kernel, so only the kernel view  
>>> needs to
>>> be sync'd.  Technically, by the kernel API, the flush should be done
>>> *before* unmapping.  This would have mattered on parisc until we did
>>> flush via tmpalias which means we no-longer care if the mapping  
>>> for the
>>> flush exists or not because we always recreate it via the tmpalias
>>> pages.
>>
>> On ARM, flush_kernel_dcache_page() actually assumes that the page is
>> mapped.  It avoids double flushing of highmem pages by not flushing
>> in those cases where kunmap_atomic() already takes care of flushing.
>
> On Parisc, kmap/kunmap is currently a nop.  However, if we ever
> implemented highmem, we would also need to flush before we unmap,  
> which
> is why the flush needs to go before the kunmap.

Not quite.  On PA8800/PA8900, we currently do a flush in kunmap.

I'm fairly certain from discussion with Helge that he saw this bug on  
a C8000
with PA8800 processor.  In that case, adding a call to  
flush_kernel_dcache_page()
just duplicates the call in kunmap().  Could be wrong though.

The problem is the coherence with userspace.  That's why  
flush_dcache_page()
is called in several places in this file.  I agree with you that this  
should be done
before.

>
> I've got to say on all of this, we've implemented the most inane set  
> of
> primitives.  It would be much easier if kmap/kunmap just took care of
> all of this.  kmap should bring userspace into coherence (because why
> else would we be kmapping) and kunmap should force coherence on the
> kernel address ... and then no-one would need to worry when to and  
> when
> not to flush.


I'm working on adding a flush to our kmap code to bring userspace into
coherence on PA8800/PA8900.  It's ugly because it requires looping over
vma's as we do in in flush_dcache_page().

Dave
--
John David Anglin	dave.anglin@bell.net



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On Sat, 2013-11-16 at 17:32 -0500, John David Anglin wrote:
> On 16-Nov-13, at 5:06 PM, James Bottomley wrote:
> 
> > On Sat, 2013-11-16 at 21:07 +0100, Simon Baatz wrote:
> >> On Fri, Nov 15, 2013 at 02:42:05PM -0800, James Bottomley wrote:
> >>> On Fri, 2013-11-15 at 23:05 +0100, Helge Deller wrote:
> >>>> When a user page mapping is released via kunmap*() functions, the  
> >>>> D-cache needs
> >>>> to be flushed via flush_dcache_page() to avoid D-cache aliasing  
> >>>> issues.
> >>>>
> >>>> This patch fixes aio on the parisc platform (and probably others).
> >>>
> >>> This should be flush_kernel_dcache_page().  flush_dcache_page() is  
> >>> for
> >>> full coherency but for unmap, we know the page was coherent going  
> >>> in and
> >>> may have been modified by the kernel, so only the kernel view  
> >>> needs to
> >>> be sync'd.  Technically, by the kernel API, the flush should be done
> >>> *before* unmapping.  This would have mattered on parisc until we did
> >>> flush via tmpalias which means we no-longer care if the mapping  
> >>> for the
> >>> flush exists or not because we always recreate it via the tmpalias
> >>> pages.
> >>
> >> On ARM, flush_kernel_dcache_page() actually assumes that the page is
> >> mapped.  It avoids double flushing of highmem pages by not flushing
> >> in those cases where kunmap_atomic() already takes care of flushing.
> >
> > On Parisc, kmap/kunmap is currently a nop.  However, if we ever
> > implemented highmem, we would also need to flush before we unmap,  
> > which
> > is why the flush needs to go before the kunmap.
> 
> Not quite.  On PA8800/PA8900, we currently do a flush in kunmap.
> 
> I'm fairly certain from discussion with Helge that he saw this bug on  
> a C8000
> with PA8800 processor.  In that case, adding a call to  
> flush_kernel_dcache_page()
> just duplicates the call in kunmap().

Yes, if that's true it won't be the solution.

>   Could be wrong though.
> 
> The problem is the coherence with userspace.  That's why  
> flush_dcache_page()
> is called in several places in this file.  I agree with you that this  
> should be done
> before.

If we need coherence with userspace, we can't do it as we unmap because
by then we've used the data in the kernel.  We have to do it as we kmap,
because that's when we're preparing to use the data.  So the solution,
if this is the problem, would be flush_dcache_page() just after kmap.

James


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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] aio: fix D-cache aliasing issues
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Cc: Simon Baatz <gmbnomis@gmail.com>, Helge Deller <deller@gmx.de>,
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On 16-Nov-13, at 5:37 PM, James Bottomley wrote:

> On Sat, 2013-11-16 at 17:32 -0500, John David Anglin wrote:
>> On 16-Nov-13, at 5:06 PM, James Bottomley wrote:
>>
>>> On Sat, 2013-11-16 at 21:07 +0100, Simon Baatz wrote:
>>>> On Fri, Nov 15, 2013 at 02:42:05PM -0800, James Bottomley wrote:
>>>>> On Fri, 2013-11-15 at 23:05 +0100, Helge Deller wrote:
>>>>>> When a user page mapping is released via kunmap*() functions, the
>>>>>> D-cache needs
>>>>>> to be flushed via flush_dcache_page() to avoid D-cache aliasing
>>>>>> issues.
>>>>>>
>>>>>> This patch fixes aio on the parisc platform (and probably  
>>>>>> others).
>>>>>
>>>>> This should be flush_kernel_dcache_page().  flush_dcache_page() is
>>>>> for
>>>>> full coherency but for unmap, we know the page was coherent going
>>>>> in and
>>>>> may have been modified by the kernel, so only the kernel view
>>>>> needs to
>>>>> be sync'd.  Technically, by the kernel API, the flush should be  
>>>>> done
>>>>> *before* unmapping.  This would have mattered on parisc until we  
>>>>> did
>>>>> flush via tmpalias which means we no-longer care if the mapping
>>>>> for the
>>>>> flush exists or not because we always recreate it via the tmpalias
>>>>> pages.
>>>>
>>>> On ARM, flush_kernel_dcache_page() actually assumes that the page  
>>>> is
>>>> mapped.  It avoids double flushing of highmem pages by not flushing
>>>> in those cases where kunmap_atomic() already takes care of  
>>>> flushing.
>>>
>>> On Parisc, kmap/kunmap is currently a nop.  However, if we ever
>>> implemented highmem, we would also need to flush before we unmap,
>>> which
>>> is why the flush needs to go before the kunmap.
>>
>> Not quite.  On PA8800/PA8900, we currently do a flush in kunmap.
>>
>> I'm fairly certain from discussion with Helge that he saw this bug on
>> a C8000
>> with PA8800 processor.  In that case, adding a call to
>> flush_kernel_dcache_page()
>> just duplicates the call in kunmap().
>
> Yes, if that's true it won't be the solution.

The calls may be needed for the two cases where the page is changed,  
but I don't
know how to avoid double flush on PA8800/PA8900 without changing the  
primatives.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix commit 63379c1 parisc: implement full version of
 access_ok()
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Commit 63379c1 parisc: implement full version of access_ok() was incomplete and
broke userspace. Fix it by checking if we really write to userspace.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 63f4dd0..228fecb 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -45,7 +45,11 @@ static inline int __range_not_ok(unsigned long addr, unsigned long size,
 				 unsigned long limit)
 {
 	unsigned long __newaddr = addr + size;
-	return (__newaddr < addr || __newaddr > limit || size > limit);
+
+	if (segment_eq(get_fs(), KERNEL_DS))
+		return 0;
+
+	return (addr < PAGE_SIZE || __newaddr > limit || size > limit);
 }
 
 /**
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: do not inline pa_memcpy()
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gcc (4.8.x) creates wrong code when pa_memcpy() is inlined.
Especially in 32bit builds it calculates wrong return values if we
encounter a fault during execution of the memcpy.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index b5507ec..e2285e1 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -460,7 +460,7 @@ handle_store_error:
 
 
 /* Returns 0 for success, otherwise, returns number of bytes not transferred. */
-static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+static noinline unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
 {
 	unsigned long ret, fault_addr, reference;
 	struct exception_data *d;
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On 11/16/2013 09:09 PM, Benjamin LaHaise wrote:
> On Sat, Nov 16, 2013 at 09:07:18PM +0100, Simon Baatz wrote:
>> On Fri, Nov 15, 2013 at 02:42:05PM -0800, James Bottomley wrote:
>>> On Fri, 2013-11-15 at 23:05 +0100, Helge Deller wrote:
>>>> When a user page mapping is released via kunmap*() functions, the D-cache needs
>>>> to be flushed via flush_dcache_page() to avoid D-cache aliasing issues.
>>>>
>>>> This patch fixes aio on the parisc platform (and probably others).
>>>
>>> This should be flush_kernel_dcache_page().  flush_dcache_page() is for
>>> full coherency but for unmap, we know the page was coherent going in and
>>> may have been modified by the kernel, so only the kernel view needs to
>>> be sync'd.  Technically, by the kernel API, the flush should be done
>>> *before* unmapping.  This would have mattered on parisc until we did
>>> flush via tmpalias which means we no-longer care if the mapping for the
>>> flush exists or not because we always recreate it via the tmpalias
>>> pages.
>>
>> On ARM, flush_kernel_dcache_page() actually assumes that the page is
>> mapped.  It avoids double flushing of highmem pages by not flushing
>> in those cases where kunmap_atomic() already takes care of flushing.
> 
> Helge -- are you going to resubmit a version of this patch that makes the 
> recommended change?

Sure, I'll do. May need some time for testing the various machine types though.
Maybe in the end you can drop my patch since we might be able to fix it in the 
parisc arch code.

@James, Dave: The patch I sent here was not used on the C8000. The C8000 (PA8800)
works out of the box (and it uses the flush_kernel_dcache_page() function which
is provided by kunmap()). It seems we require the flush_kernel_dcache_page() on
the other machines too?

Helge
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From - Thu Nov 08 21:09:55 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.aio.general,gmane.linux.kernel
Subject: Re: [PATCH] aio: fix D-cache aliasing issues
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On Sun, 2013-11-17 at 22:23 +0100, Helge Deller wrote:
> On 11/16/2013 09:09 PM, Benjamin LaHaise wrote:
> > On Sat, Nov 16, 2013 at 09:07:18PM +0100, Simon Baatz wrote:
> >> On Fri, Nov 15, 2013 at 02:42:05PM -0800, James Bottomley wrote:
> >>> On Fri, 2013-11-15 at 23:05 +0100, Helge Deller wrote:
> >>>> When a user page mapping is released via kunmap*() functions, the D-cache needs
> >>>> to be flushed via flush_dcache_page() to avoid D-cache aliasing issues.
> >>>>
> >>>> This patch fixes aio on the parisc platform (and probably others).
> >>>
> >>> This should be flush_kernel_dcache_page().  flush_dcache_page() is for
> >>> full coherency but for unmap, we know the page was coherent going in and
> >>> may have been modified by the kernel, so only the kernel view needs to
> >>> be sync'd.  Technically, by the kernel API, the flush should be done
> >>> *before* unmapping.  This would have mattered on parisc until we did
> >>> flush via tmpalias which means we no-longer care if the mapping for the
> >>> flush exists or not because we always recreate it via the tmpalias
> >>> pages.
> >>
> >> On ARM, flush_kernel_dcache_page() actually assumes that the page is
> >> mapped.  It avoids double flushing of highmem pages by not flushing
> >> in those cases where kunmap_atomic() already takes care of flushing.
> > 
> > Helge -- are you going to resubmit a version of this patch that makes the 
> > recommended change?
> 
> Sure, I'll do. May need some time for testing the various machine types though.
> Maybe in the end you can drop my patch since we might be able to fix it in the 
> parisc arch code.
> 
> @James, Dave: The patch I sent here was not used on the C8000. The C8000 (PA8800)
> works out of the box (and it uses the flush_kernel_dcache_page() function which
> is provided by kunmap()). It seems we require the flush_kernel_dcache_page() on
> the other machines too?

Well, this is why I think our in-kernel API (not the parisc one) for
kmap/kunmap is faulty.  I can't see any valid use of kmap/kunmap where
you don't need to flush.  Either you kmapped for reading, in which case
you need to flush user space before the kernel access, or you kmapped
for writing, in which case you need to flush user space just before
mapping (eliminate any dirty user line) and the kernel cache before
unmap (so the modification becomes visible in main memory).  I could see
an argument that flushing all the user mappings is expensive so only do
it if necessary, but I think it looks to be always necessary: even if
you're writing only, which means purging the lines above the user
mappings, most hardware will panic (HPMC) if it sees inequivalent
aliases with clashing dirty lines.

I think the reason for the complexity is issues on ARM.  The user space
cache lines have to remain empty until the kunmap.  On parisc we can
ensure this by purging the tlb entries to prevent speculative move in
(if the user deliberately accesses while we're modifying, it's caveat
emptor), but I don't believe ARM can control this speculation, so they
always need to re-invalidate all of user space before unmap just to
eliminate speculated lines ... in any case, that could still be done as
part of the kunmap API.

James


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.aio.general,gmane.linux.kernel
Subject: Re: [PATCH] aio: fix D-cache aliasing issues
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Cc: Helge Deller <deller@gmx.de>, Benjamin LaHaise <bcrl@kvack.org>,
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	linux-kernel@vger.kernel.org,
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* James Bottomley <James.Bottomley@HansenPartnership.com>:
> On Sun, 2013-11-17 at 22:23 +0100, Helge Deller wrote:
> > On 11/16/2013 09:09 PM, Benjamin LaHaise wrote:
> > > On Sat, Nov 16, 2013 at 09:07:18PM +0100, Simon Baatz wrote:
> > >> On Fri, Nov 15, 2013 at 02:42:05PM -0800, James Bottomley wrote:
> > >>> On Fri, 2013-11-15 at 23:05 +0100, Helge Deller wrote:
> > >>>> When a user page mapping is released via kunmap*() functions, the D-cache needs
> > >>>> to be flushed via flush_dcache_page() to avoid D-cache aliasing issues.
> > >>>>
> > >>>> This patch fixes aio on the parisc platform (and probably others).
> > >>>
> > >>> This should be flush_kernel_dcache_page().  flush_dcache_page() is for
> > >>> full coherency but for unmap, we know the page was coherent going in and
> > >>> may have been modified by the kernel, so only the kernel view needs to
> > >>> be sync'd.  Technically, by the kernel API, the flush should be done
> > >>> *before* unmapping.  This would have mattered on parisc until we did
> > >>> flush via tmpalias which means we no-longer care if the mapping for the
> > >>> flush exists or not because we always recreate it via the tmpalias
> > >>> pages.
> > >>
> > >> On ARM, flush_kernel_dcache_page() actually assumes that the page is
> > >> mapped.  It avoids double flushing of highmem pages by not flushing
> > >> in those cases where kunmap_atomic() already takes care of flushing.
> > > 
> > > Helge -- are you going to resubmit a version of this patch that makes the 
> > > recommended change?
> > 
> > Sure, I'll do. May need some time for testing the various machine types though.
> > Maybe in the end you can drop my patch since we might be able to fix it in the 
> > parisc arch code.
> > 
> > @James, Dave: The patch I sent here was not used on the C8000. The C8000 (PA8800)
> > works out of the box (and it uses the flush_kernel_dcache_page() function which
> > is provided by kunmap()). It seems we require the flush_kernel_dcache_page() on
> > the other machines too?
> 
> Well, this is why I think our in-kernel API (not the parisc one) for
> kmap/kunmap is faulty.  I can't see any valid use of kmap/kunmap where
> you don't need to flush. 

Maybe adding a flag to kmap(), e.g. READ_ONLY, WRITE_ONLY or similiar? 

> Either you kmapped for reading, in which case
> you need to flush user space before the kernel access, or you kmapped
> for writing, in which case you need to flush user space just before
> mapping (eliminate any dirty user line) and the kernel cache before
> unmap (so the modification becomes visible in main memory).

That's exactly what Dave told me in a private mail earlier.

Below is a patch to the parisc arch code which is originally from Dave.
I only changed kunmap_parisc() to always call
flush_kernel_dcache_page_addr(addr) - independend if we are on a PA8800/8900
CPU or not - which is what you proposed in your original mail.
And yes, this flush_kernel_dcache_page() fixes the aio problems
on all my machines (32- and 64bit kernels, PA7300LC, PA8700, ...).


>  I could see
> an argument that flushing all the user mappings is expensive so only do
> it if necessary, but I think it looks to be always necessary: even if
> you're writing only, which means purging the lines above the user
> mappings, most hardware will panic (HPMC) if it sees inequivalent
> aliases with clashing dirty lines.



diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index f0e2784..ce6d605 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -43,6 +43,8 @@ static inline void flush_kernel_dcache_page(struct page *page)
 	flush_kernel_dcache_page_addr(page_address(page));
 }
 
+void flush_user_dcache_page(struct page *page);
+
 #define flush_kernel_dcache_range(start,size) \
 	flush_kernel_dcache_range_asm((start), (start)+(size));
 /* vmap range flushes and invalidates.  Architecturally, we don't need
@@ -125,18 +127,27 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 void mark_rodata_ro(void);
 #endif
 
-#ifdef CONFIG_PA8X00
-/* Only pa8800, pa8900 needs this */
-
 #include <asm/kmap_types.h>
 
 #define ARCH_HAS_KMAP
 
-void kunmap_parisc(void *addr);
+static inline void kmap_parisc(struct page *page)
+{
+	if (parisc_requires_coherency())
+		flush_user_dcache_page(page);
+}
+
+static inline void kunmap_parisc(void *addr)
+{
+	/* always flush kernel dcache, independed of
+	 * parisc_requires_coherency(). Needed on CPUs < PA8800/PA8900 */
+	flush_kernel_dcache_page_addr(addr);
+}
 
 static inline void *kmap(struct page *page)
 {
 	might_sleep();
+	kmap_parisc(page);
 	return page_address(page);
 }
 
@@ -148,6 +159,7 @@ static inline void kunmap(struct page *page)
 static inline void *kmap_atomic(struct page *page)
 {
 	pagefault_disable();
+	kmap_parisc(page);
 	return page_address(page);
 }
 
@@ -160,7 +172,6 @@ static inline void __kunmap_atomic(void *addr)
 #define kmap_atomic_prot(page, prot)	kmap_atomic(page)
 #define kmap_atomic_pfn(pfn)	kmap_atomic(pfn_to_page(pfn))
 #define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
-#endif
 
 #endif /* _PARISC_CACHEFLUSH_H */
 
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index c035673..a7ee7b7 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -283,7 +283,7 @@ __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
 	preempt_enable();
 }
 
-void flush_dcache_page(struct page *page)
+void flush_user_dcache_page(struct page *page)
 {
 	struct address_space *mapping = page_mapping(page);
 	struct vm_area_struct *mpnt;
@@ -291,13 +291,6 @@ void flush_dcache_page(struct page *page)
 	unsigned long addr, old_addr = 0;
 	pgoff_t pgoff;
 
-	if (mapping && !mapping_mapped(mapping)) {
-		set_bit(PG_dcache_dirty, &page->flags);
-		return;
-	}
-
-	flush_kernel_dcache_page(page);
-
 	if (!mapping)
 		return;
 
@@ -332,6 +325,20 @@ void flush_dcache_page(struct page *page)
 	}
 	flush_dcache_mmap_unlock(mapping);
 }
+EXPORT_SYMBOL(flush_user_dcache_page);
+
+void flush_dcache_page(struct page *page)
+{
+	struct address_space *mapping = page_mapping(page);
+
+	if (mapping && !mapping_mapped(mapping)) {
+		set_bit(PG_dcache_dirty, &page->flags);
+		return;
+	}
+
+	flush_kernel_dcache_page(page);
+	flush_user_dcache_page(page);
+}
 EXPORT_SYMBOL(flush_dcache_page);
 
 /* Defined in arch/parisc/kernel/pacache.S */
@@ -413,16 +420,6 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 }
 EXPORT_SYMBOL(copy_user_page);
 
-#ifdef CONFIG_PA8X00
-
-void kunmap_parisc(void *addr)
-{
-	if (parisc_requires_coherency())
-		flush_kernel_dcache_page_addr(addr);
-}
-EXPORT_SYMBOL(kunmap_parisc);
-#endif

From - Thu Nov 08 21:09:55 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.aio.general,gmane.linux.kernel
Subject: Re: [PATCH] aio: fix D-cache aliasing issues
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Cc: linux-parisc@vger.kernel.org, Benjamin LaHaise <bcrl@kvack.org>,
	Simon Baatz <gmbnomis@gmail.com>, linux-aio@kvack.org,
	linux-kernel@vger.kernel.org,
	John David Anglin <dave.anglin@bell.net>
To: Helge Deller <deller@gmx.de>
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On Mon, 2013-11-18 at 00:47 +0100, Helge Deller wrote:
> * James Bottomley <James.Bottomley@HansenPartnership.com>:
> > On Sun, 2013-11-17 at 22:23 +0100, Helge Deller wrote:
> > > On 11/16/2013 09:09 PM, Benjamin LaHaise wrote:
> > > > On Sat, Nov 16, 2013 at 09:07:18PM +0100, Simon Baatz wrote:
> > > >> On Fri, Nov 15, 2013 at 02:42:05PM -0800, James Bottomley wrote:
> > > >>> On Fri, 2013-11-15 at 23:05 +0100, Helge Deller wrote:
> > > >>>> When a user page mapping is released via kunmap*() functions, the D-cache needs
> > > >>>> to be flushed via flush_dcache_page() to avoid D-cache aliasing issues.
> > > >>>>
> > > >>>> This patch fixes aio on the parisc platform (and probably others).
> > > >>>
> > > >>> This should be flush_kernel_dcache_page().  flush_dcache_page() is for
> > > >>> full coherency but for unmap, we know the page was coherent going in and
> > > >>> may have been modified by the kernel, so only the kernel view needs to
> > > >>> be sync'd.  Technically, by the kernel API, the flush should be done
> > > >>> *before* unmapping.  This would have mattered on parisc until we did
> > > >>> flush via tmpalias which means we no-longer care if the mapping for the
> > > >>> flush exists or not because we always recreate it via the tmpalias
> > > >>> pages.
> > > >>
> > > >> On ARM, flush_kernel_dcache_page() actually assumes that the page is
> > > >> mapped.  It avoids double flushing of highmem pages by not flushing
> > > >> in those cases where kunmap_atomic() already takes care of flushing.
> > > > 
> > > > Helge -- are you going to resubmit a version of this patch that makes the 
> > > > recommended change?
> > > 
> > > Sure, I'll do. May need some time for testing the various machine types though.
> > > Maybe in the end you can drop my patch since we might be able to fix it in the 
> > > parisc arch code.
> > > 
> > > @James, Dave: The patch I sent here was not used on the C8000. The C8000 (PA8800)
> > > works out of the box (and it uses the flush_kernel_dcache_page() function which
> > > is provided by kunmap()). It seems we require the flush_kernel_dcache_page() on
> > > the other machines too?
> > 
> > Well, this is why I think our in-kernel API (not the parisc one) for
> > kmap/kunmap is faulty.  I can't see any valid use of kmap/kunmap where
> > you don't need to flush. 
> 
> Maybe adding a flag to kmap(), e.g. READ_ONLY, WRITE_ONLY or similiar? 
> 
> > Either you kmapped for reading, in which case
> > you need to flush user space before the kernel access, or you kmapped
> > for writing, in which case you need to flush user space just before
> > mapping (eliminate any dirty user line) and the kernel cache before
> > unmap (so the modification becomes visible in main memory).
> 
> That's exactly what Dave told me in a private mail earlier.
> 
> Below is a patch to the parisc arch code which is originally from Dave.
> I only changed kunmap_parisc() to always call
> flush_kernel_dcache_page_addr(addr) - independend if we are on a PA8800/8900
> CPU or not - which is what you proposed in your original mail.
> And yes, this flush_kernel_dcache_page() fixes the aio problems
> on all my machines (32- and 64bit kernels, PA7300LC, PA8700, ...).
> 
> 
> >  I could see
> > an argument that flushing all the user mappings is expensive so only do
> > it if necessary, but I think it looks to be always necessary: even if
> > you're writing only, which means purging the lines above the user
> > mappings, most hardware will panic (HPMC) if it sees inequivalent
> > aliases with clashing dirty lines.
> 
> 
> 
> diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
> index f0e2784..ce6d605 100644
> --- a/arch/parisc/include/asm/cacheflush.h
> +++ b/arch/parisc/include/asm/cacheflush.h
> @@ -43,6 +43,8 @@ static inline void flush_kernel_dcache_page(struct page *page)
>  	flush_kernel_dcache_page_addr(page_address(page));
>  }
>  
> +void flush_user_dcache_page(struct page *page);
> +

The split into flush_kernel.. and flush_user.. is pointless.  We have no
use for a flush_user_.. API because it's not part of the standard linux
one.  Plus it's going to confuse those who come after us no end because
now we're different from every other architecture.

>  #define flush_kernel_dcache_range(start,size) \
>  	flush_kernel_dcache_range_asm((start), (start)+(size));
>  /* vmap range flushes and invalidates.  Architecturally, we don't need
> @@ -125,18 +127,27 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
>  void mark_rodata_ro(void);
>  #endif
>  
> -#ifdef CONFIG_PA8X00
> -/* Only pa8800, pa8900 needs this */
> -
>  #include <asm/kmap_types.h>
>  
>  #define ARCH_HAS_KMAP
>  
> -void kunmap_parisc(void *addr);
> +static inline void kmap_parisc(struct page *page)
> +{
> +	if (parisc_requires_coherency())
> +		flush_user_dcache_page(page);
> +}

No ... if we're genuinely moving coherency into kmap/kunmap, this has to
become

	flush_dcache_page(page);

unconditionally.

James


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On 17-Nov-13, at 6:47 PM, Helge Deller wrote:

> I only changed kunmap_parisc() to always call
> flush_kernel_dcache_page_addr(addr) - independend if we are on a  
> PA8800/8900
> CPU or not - which is what you proposed in your original mail.

In which case the flushes in clear_user_page() and copy_user_page()  
aren't needed.

Dave
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On 17-Nov-13, at 7:52 PM, James Bottomley wrote:

>> +void flush_user_dcache_page(struct page *page);
>> +
>
> The split into flush_kernel.. and flush_user.. is pointless.  We  
> have no
> use for a flush_user_.. API because it's not part of the standard  
> linux
> one.  Plus it's going to confuse those who come after us no end  
> because
> now we're different from every other architecture.

I introduced it because it seemed to be what was needed on parisc when
we map a kernel page on PA8800/PA8900.  We need this to ensure what the
kernel sees is up to date and also to ensure that we don't create  
inequivalent
aliases between the user and kernel mappings.

>
>> #define flush_kernel_dcache_range(start,size) \
>> 	flush_kernel_dcache_range_asm((start), (start)+(size));
>> /* vmap range flushes and invalidates.  Architecturally, we don't  
>> need
>> @@ -125,18 +127,27 @@ flush_anon_page(struct vm_area_struct *vma,  
>> struct page *page, unsigned long vma
>> void mark_rodata_ro(void);
>> #endif
>>
>> -#ifdef CONFIG_PA8X00
>> -/* Only pa8800, pa8900 needs this */
>> -
>> #include <asm/kmap_types.h>
>>
>> #define ARCH_HAS_KMAP
>>
>> -void kunmap_parisc(void *addr);
>> +static inline void kmap_parisc(struct page *page)
>> +{
>> +	if (parisc_requires_coherency())
>> +		flush_user_dcache_page(page);
>> +}
>
> No ... if we're genuinely moving coherency into kmap/kunmap, this  
> has to
> become
>
> 	flush_dcache_page(page);
>
> unconditionally.

There are two things about flush_dcache_page(page):

1) The flush could be deferred.  I don't think we want that.
2) It seems to unnecessarily call flush_kernel_dcache_page().

Dave
--
John David Anglin	dave.anglin@bell.net



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On Sun, 2013-11-17 at 20:15 -0500, John David Anglin wrote:
> On 17-Nov-13, at 7:52 PM, James Bottomley wrote:
> 
> >> +void flush_user_dcache_page(struct page *page);
> >> +
> >
> > The split into flush_kernel.. and flush_user.. is pointless.  We  
> > have no
> > use for a flush_user_.. API because it's not part of the standard  
> > linux
> > one.  Plus it's going to confuse those who come after us no end  
> > because
> > now we're different from every other architecture.
> 
> I introduced it because it seemed to be what was needed on parisc when
> we map a kernel page on PA8800/PA8900.  We need this to ensure what the
> kernel sees is up to date and also to ensure that we don't create  
> inequivalent
> aliases between the user and kernel mappings.
> 
> >
> >> #define flush_kernel_dcache_range(start,size) \
> >> 	flush_kernel_dcache_range_asm((start), (start)+(size));
> >> /* vmap range flushes and invalidates.  Architecturally, we don't  
> >> need
> >> @@ -125,18 +127,27 @@ flush_anon_page(struct vm_area_struct *vma,  
> >> struct page *page, unsigned long vma
> >> void mark_rodata_ro(void);
> >> #endif
> >>
> >> -#ifdef CONFIG_PA8X00
> >> -/* Only pa8800, pa8900 needs this */
> >> -
> >> #include <asm/kmap_types.h>
> >>
> >> #define ARCH_HAS_KMAP
> >>
> >> -void kunmap_parisc(void *addr);
> >> +static inline void kmap_parisc(struct page *page)
> >> +{
> >> +	if (parisc_requires_coherency())
> >> +		flush_user_dcache_page(page);
> >> +}
> >
> > No ... if we're genuinely moving coherency into kmap/kunmap, this  
> > has to
> > become
> >
> > 	flush_dcache_page(page);
> >
> > unconditionally.
> 
> There are two things about flush_dcache_page(page):
> 
> 1) The flush could be deferred.  I don't think we want that.

Our deferred flush logic seems a bit bogus to me.  We set a flag that
causes a kernel page flush in invalidate_kernel_vmap_range().  However,
when that function is called we checked this on a page by page bases and
if set we flush the page then we then go and do a dcache flush on the
entire range ... that's got to be wrong.  I also can't really see what
the check for mapping && !mapping_mapped() is about.  Mapping != NULL
means shared mappings with user space !mapping_mapped() means no file
backing (so they must be some form of anonymous vma).  Even if we got
the deferred logic right, I don't think we can avoid flushing in the
anon_vma case

> 2) It seems to unnecessarily call flush_kernel_dcache_page().

Remember flush on parisc is flush and invalidate.  We do need to
invalidate the kernel page in flush_dcache_page() just in case there are
any read only speculated cache lines above it.  I agree there shouldn't
be any dirty cache lines above it in kernel space.

James


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From: Simon Baatz <gmbnomis@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.aio.general,gmane.linux.kernel
Subject: Re: [PATCH] aio: fix D-cache aliasing issues
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Hi Helge,

On Sun, Nov 17, 2013 at 10:23:08PM +0100, Helge Deller wrote:
> On 11/16/2013 09:09 PM, Benjamin LaHaise wrote:
> > On Sat, Nov 16, 2013 at 09:07:18PM +0100, Simon Baatz wrote:
> >> On Fri, Nov 15, 2013 at 02:42:05PM -0800, James Bottomley wrote:
> >>> On Fri, 2013-11-15 at 23:05 +0100, Helge Deller wrote:
> >>>> When a user page mapping is released via kunmap*() functions, the D-cache needs
> >>>> to be flushed via flush_dcache_page() to avoid D-cache aliasing issues.
> >>>>
> >>>> This patch fixes aio on the parisc platform (and probably others).
> >>>
> >>> This should be flush_kernel_dcache_page().  flush_dcache_page() is for
> >>> full coherency but for unmap, we know the page was coherent going in and
> >>> may have been modified by the kernel, so only the kernel view needs to
> >>> be sync'd.  Technically, by the kernel API, the flush should be done
> >>> *before* unmapping.  This would have mattered on parisc until we did
> >>> flush via tmpalias which means we no-longer care if the mapping for the
> >>> flush exists or not because we always recreate it via the tmpalias
> >>> pages.
> >>
> >> On ARM, flush_kernel_dcache_page() actually assumes that the page is
> >> mapped.  It avoids double flushing of highmem pages by not flushing
> >> in those cases where kunmap_atomic() already takes care of flushing.
> > 
> > Helge -- are you going to resubmit a version of this patch that makes the 
> > recommended change?
> 
> Sure, I'll do. May need some time for testing the various machine types though.
> Maybe in the end you can drop my patch since we might be able to fix it in the 
> parisc arch code.

Could you provide me with the test case(s) you are running to
reproduce the problem?  I could test this on aliasing D-cache on ARM
as well. Since kmap/kunmap do not flush in general on ARM, we
might need the explicit flushes here.


- Simon
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From: "Helge Deller" <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.aio.general,gmane.linux.kernel
Subject: Aw: Re: [PATCH] aio: fix D-cache aliasing issues
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To: "Simon Baatz" <gmbnomis@gmail.com>
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> Hi Helge,
> Could you provide me with the test case(s) you are running to
> reproduce the problem?  I could test this on aliasing D-cache on ARM
> as well. Since kmap/kunmap do not flush in general on ARM, we
> might need the explicit flushes here.

Just google for aio-stress.c (e.g. https://github.com/repoforge/rpms/blob/master/specs/aio-stress/aio-stress.c).
And the aio01 / aio02 testcases from the Linux Test Project (https://github.com/linux-test-project/ltp).

Helge
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From - Thu Nov 08 21:09:56 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: improve SIGBUS/SIGSEGV error reporting
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To: linux-parisc@vger.kernel.org,
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This patch fixes most of the Linux Test Project testcases, e.g. fstat05.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 7584a5d..13ff454 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -282,16 +282,31 @@ bad_area:
 #endif
 		switch (code) {
 		case 15:	/* Data TLB miss fault/Data page fault */
+			/* Outside of vma area? -> send SIGSEGV */
+			if (!vma ||
+			    address < vma->vm_start || address > vma->vm_end)
+				goto send_sigsegv;
+
+			/* Wrong permissions? -> send SIGSEGV */
+			if ((vma->vm_flags & acc_type) != acc_type) {
+				si.si_signo = SIGSEGV;
+				si.si_code = SEGV_ACCERR;
+				break;
+			}
+
+			/* permissions & location OK, but end of mapped file? */
+			/* fall through */
 		case 17:	/* NA data TLB miss / page fault */
 		case 18:	/* Unaligned access - PCXS only */
-			si.si_signo = SIGBUS;
-			si.si_code = BUS_ADRERR;
+send_sigbus:		si.si_signo = SIGBUS;
+			si.si_code = (code == 18) ? BUS_ADRALN : BUS_ADRERR;
 			break;
 		case 16:	/* Non-access instruction TLB miss fault */
 		case 26:	/* PCXL: Data memory access rights trap */
 		default:
-			si.si_signo = SIGSEGV;
-			si.si_code = SEGV_MAPERR;
+send_sigsegv:		si.si_signo = SIGSEGV;
+			si.si_code = (code == 26) ? SEGV_ACCERR : SEGV_MAPERR;
+			break;
 		}
 		si.si_errno = 0;
 		si.si_addr = (void __user *) address;
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Cc: Matt Taggart <matt@lackof.org>, dann frazier <dannf@dannf.org>,
	"Craig Lamparter (ISS Linux)" <craig.lamparter@hp.com>,
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To: Helge Deller <deller@gmx.de>
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On 12 nov. 2013, at 20:47, Helge Deller <deller@gmx.de> wrote:
> On 11/11/2013 08:43 PM, Thibaut Var=E8ne wrote:

>> Finally, do we have an exact date as to when the A500 will be powere=
d
>> down?
>=20
> Again, I'm happy as long as it can live.

I'm happy too, but then again, if we want a smooth transition, having a=
 date for when to push the button would be nice...

T-Bone--
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From - Thu Nov 08 21:09:56 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc fixes for v3.13
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi Linus,

Please pull the latest fixes for the parisc architecture from

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.13

which has the following fixes: 
- revert an access_ok() patch which broke 32bit userspace on 64bit kernels
- avoid a gcc miscompilation in two internal pa_memcpy() functions by not inlining those
- do not export the definition of SOCK_NONBLOCK via uapi header (fixes build of audit package)
- depending on the fault type we now correctly report either SIGBUS or SIGSEGV
- a small fix to not compare a size_t variable for < 0

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (5):
      Revert "parisc: implement full version of access_ok()"
      parisc: do not inline pa_memcpy() internal functions
      parisc: break out SOCK_NONBLOCK define to own asm header file
      parisc: improve SIGBUS/SIGSEGV error reporting
      parisc: size_t is unsigned, so comparison size < 0 doesn't make sense.

 arch/parisc/include/asm/socket.h      | 11 +++++++++
 arch/parisc/include/asm/uaccess.h     | 46 +++--------------------------------
 arch/parisc/include/uapi/asm/socket.h | 11 +++------
 arch/parisc/lib/memcpy.c              |  6 ++---
 arch/parisc/mm/fault.c                | 22 +++++++++++++++--
 5 files changed, 41 insertions(+), 55 deletions(-)
 create mode 100644 arch/parisc/include/asm/socket.h

From - Thu Nov 08 21:09:56 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix re-mmap() of shared file to same fixed address
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locale-gen from glibc showed a strange problem on parisc: 
mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42a54000
mmap2(0x42a54000, 103860, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument)

Basically it was just trying to re-mmap() a file at the same address
which it was given by a previous mmap() call. But this remapping failed
with EINVAL.

The problem is, that when MAP_FIXED and MAP_SHARED flags were used, we didn't
included the mapping-based offset when we verified the alignment of the given
fixed address against the offset which we calculated it in the previous call.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable....

diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 5dfd248..0d3a9d4 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -61,8 +61,15 @@ static int get_offset(struct address_space *mapping)
 	return (unsigned long) mapping >> 8;
 }
 
-static unsigned long get_shared_area(struct address_space *mapping,
-		unsigned long addr, unsigned long len, unsigned long pgoff)
+static unsigned long shared_align_offset(struct file *filp, unsigned long pgoff)
+{
+	struct address_space *mapping = filp ? filp->f_mapping : NULL;
+
+	return (get_offset(mapping) + pgoff) << PAGE_SHIFT;
+}
+
+static unsigned long get_shared_area(struct file *filp, unsigned long addr,
+		unsigned long len, unsigned long pgoff)
 {
 	struct vm_unmapped_area_info info;
 
@@ -71,7 +78,7 @@ static unsigned long get_shared_area(struct address_space *mapping,
 	info.low_limit = PAGE_ALIGN(addr);
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & (SHMLBA - 1);
-	info.align_offset = (get_offset(mapping) + pgoff) << PAGE_SHIFT;
+	info.align_offset = shared_align_offset(filp, pgoff);
 	return vm_unmapped_area(&info);
 }
 
@@ -82,20 +89,18 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 		return -ENOMEM;
 	if (flags & MAP_FIXED) {
 		if ((flags & MAP_SHARED) &&
-		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+		    (addr - shared_align_offset(filp, pgoff)) & (SHMLBA - 1))
 			return -EINVAL;
 		return addr;
 	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
-	if (filp) {
-		addr = get_shared_area(filp->f_mapping, addr, len, pgoff);
-	} else if(flags & MAP_SHARED) {
-		addr = get_shared_area(NULL, addr, len, pgoff);
-	} else {
+	if (filp || (flags & MAP_SHARED))
+		addr = get_shared_area(filp, addr, len, pgoff);
+	else
 		addr = get_unshared_area(addr, len);
-	}
+
 	return addr;
 }
 
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: vmlinux.lds.S: fix linkage of the 64bit SMP debian
 kernel
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When building the 64bit SMP kernel for debian it may happen that it becomes too
big so that functions in the .init.text or .exit.text may not be able to reach
important kernel functions in the .text section. Main reason why this happens
with a 64bit kernel build is that we include the linkage tables (.opd, .plt,
.dlt) in that data section.  Those linkage tables tend to become huge, and
since they are located between the .text and the .init sections the distance
gets too far.

If the linker fails to link vmlinux, it will either crash without any error
message, or it will - with newer linker versions - report the following error:

hppa64-linux-gnu-ld: drivers/built-in.o(.exit.text+0xc4): cannot reach _raw_read_lock
drivers/built-in.o: In function `pdc_stable_exit':
drivers/parisc/pdc_stable.o:(.exit.text+0xc4): relocation truncated to fit: R_PARISC_PCREL22F against symbol `_raw_read_lock' defined in .spinlock.text section in kernel/built-in.o

We have three options to solve this issue:
a) Turn on CONFIG_MLONGCALLS, which will instruct the compiler to use the
   -mlongcall option. But this option will hurt performance.
b) Tell the linker (via vmlinux.lds.S) to move the .init.text and .exit.text
   sections into the normal .text section. Downside here is, that those sections
   will not be discarded at runtime.
c) Move the linkage tables somewhere else. Even if this would be possible I did
   not find a nice solution without any other bad side effects.

Since we are compiling a 64bit kernel which usually runs on machines with lots
of memory, I preferred option b) since performance is usually more imortant than
some lost memory area.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 4bb095a..f16fa7d 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -67,6 +78,10 @@ SECTIONS
 		*(.fixup)
 		*(.lock.text)		/* out-of-line lock text */
 		*(.gnu.warning)
+#if defined(CONFIG_64BIT) && !defined(CONFIG_MLONGCALLS)
+		INIT_TEXT
+		EXIT_TEXT
+#endif
 	}
 	/* End of text section */
 	_etext = .;
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: vmlinux.lds.S: use BSS_SECTION() and
 RO_DATA_SECTION()
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- use predefined BSS_SECTION() and RO_DATA_SECTION() macros
- join data sections: INIT_DATA_SECTION() and .exit.data
- whitespace cleanups

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 4bb095a..f16fa7d 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -23,13 +23,23 @@
  *    along with this program; if not, write to the Free Software
  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
+
+/*
+ * Put page table entries (swapper_pg_dir) as the first thing in .bss. This
+ * will ensure that it has .bss alignment (PAGE_SIZE).
+ */
+#define BSS_FIRST_SECTIONS	*(.data..vm0.pmd) \
+				*(.data..vm0.pgd) \
+				*(.data..vm0.pte)
+
 #include <asm-generic/vmlinux.lds.h>
+
 /* needed for the processor specific cache alignment size */	
 #include <asm/cache.h>
 #include <asm/page.h>
 #include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
-	
+
 /* ld script to make hppa Linux kernel */
 #ifndef CONFIG_64BIT
 OUTPUT_FORMAT("elf32-hppa-linux")
@@ -53,6 +63,7 @@ SECTIONS
 	.head ALIGN(16) : {
 		HEAD_TEXT
 	} = 0
+
 	.text ALIGN(16) : {
 		TEXT_TEXT
 		SCHED_TEXT
@@ -74,7 +89,7 @@ SECTIONS
 	/* Start of data section */
 	_sdata = .;
 
-	RODATA
+	RO_DATA_SECTION(PAGE_SIZE)
 
 	/* writeable */
 	/* Make sure this is page aligned so
@@ -107,29 +122,19 @@ SECTIONS
 	_edata = .;
 
 	/* BSS */
-	__bss_start = .;
-	/* page table entries need to be PAGE_SIZE aligned */
-	. = ALIGN(PAGE_SIZE);
-	.data..vmpages : {
-		*(.data..vm0.pmd)
-		*(.data..vm0.pgd)
-		*(.data..vm0.pte)
-	}
-	.bss : {
-		*(.bss)
-		*(COMMON)
-	}
-	__bss_stop = .;
+	BSS_SECTION(16, PAGE_SIZE, 16)
+
 
 #ifdef CONFIG_64BIT
+	/* Linkage tables are huge. */
 	. = ALIGN(16);
 	/* Linkage tables */
 	.opd : {
 		*(.opd)
-	} PROVIDE (__gp = .); 
+	} PROVIDE (__gp = .);
 	.plt : {
 		*(.plt)
-	} 
+	}
 	.dlt : {
 		*(.dlt)
 	}
@@ -139,13 +144,12 @@ SECTIONS
 	. = ALIGN(16384);
 	__init_begin = .;
 	INIT_TEXT_SECTION(16384)
-	. = ALIGN(PAGE_SIZE);
-	INIT_DATA_SECTION(16)
 	/* we have to discard exit text and such at runtime, not link time */
 	.exit.text :
 	{
 		EXIT_TEXT
 	}
+	INIT_DATA_SECTION(16)
 	.exit.data :
 	{
 		EXIT_DATA
--
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From - Thu Nov 08 21:09:56 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: add some more machine names to hardware database
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To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Sadly the correct names for machines which end with a question-mark aren't
known, so let's give it a best-guessed-name.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index 06cb399..608716f 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -36,6 +36,9 @@
  *	HP PARISC Hardware Database
  *	Access to this database is only possible during bootup
  *	so don't reference this table after starting the init process
+ *
+ *	NOTE: Product names which are listed here and ends with a '?'
+ *	are guessed. If you know the correct name, please let us know.
  */
  
 static struct hp_hardware hp_hardware_list[] = {
@@ -222,7 +225,7 @@ static struct hp_hardware hp_hardware_list[] = {
 	{HPHW_NPROC,0x5DD,0x4,0x81,"Duet W2"},
 	{HPHW_NPROC,0x5DE,0x4,0x81,"Piccolo W+"},
 	{HPHW_NPROC,0x5DF,0x4,0x81,"Cantata W2"},
-	{HPHW_NPROC,0x5DF,0x0,0x00,"Marcato W+? (rp5470)"},
+	{HPHW_NPROC,0x5DF,0x0,0x00,"Marcato W+ (rp5470)?"},
 	{HPHW_NPROC,0x5E0,0x4,0x91,"Cantata DC- W2"},
 	{HPHW_NPROC,0x5E1,0x4,0x91,"Crescendo DC- W2"},
 	{HPHW_NPROC,0x5E2,0x4,0x91,"Crescendo 650 W2"},
@@ -276,9 +279,11 @@ static struct hp_hardware hp_hardware_list[] = {
 	{HPHW_NPROC,0x888,0x4,0x91,"Storm Peak Fast DC-"},
 	{HPHW_NPROC,0x889,0x4,0x91,"Storm Peak Fast"},
 	{HPHW_NPROC,0x88A,0x4,0x91,"Crestone Peak Slow"},
+	{HPHW_NPROC,0x88B,0x4,0x91,"Crestone Peak Fast?"},
 	{HPHW_NPROC,0x88C,0x4,0x91,"Orca Mako+"},
 	{HPHW_NPROC,0x88D,0x4,0x91,"Rainier/Medel Mako+ Slow"},
 	{HPHW_NPROC,0x88E,0x4,0x91,"Rainier/Medel Mako+ Fast"},
+	{HPHW_NPROC,0x892,0x4,0x91,"Mt. Hamilton Slow Mako+?"},
 	{HPHW_NPROC,0x894,0x4,0x91,"Mt. Hamilton Fast Mako+"},
 	{HPHW_NPROC,0x895,0x4,0x91,"Storm Peak Slow Mako+"},
 	{HPHW_NPROC,0x896,0x4,0x91,"Storm Peak Fast Mako+"},
--
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-- 
This is to inform you that an inheritance was bequeathed in your
favour. Letters were posted to you to this regards, but returned
undelivered. Kindly contact me once you recieve this email for more
information.

Sincerely
Barr Mark Freedman
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From - Thu Nov 08 21:09:56 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: vmlinux.lds.S: fix linkage of the 64bit SMP
 debian kernel
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Here is an updated (complete) patch.


* Helge Deller <deller@gmx.de>:
> When building the 64bit SMP kernel for debian it may happen that it becomes too
> big so that functions in the .init.text or .exit.text may not be able to reach
> important kernel functions in the .text section. Main reason why this happens
> with a 64bit kernel build is that we include the linkage tables (.opd, .plt,
> .dlt) in that data section.  Those linkage tables tend to become huge, and
> since they are located between the .text and the .init sections the distance
> gets too far.
> 
> If the linker fails to link vmlinux, it will either crash without any error
> message, or it will - with newer linker versions - report the following error:
> 
> hppa64-linux-gnu-ld: drivers/built-in.o(.exit.text+0xc4): cannot reach _raw_read_lock
> drivers/built-in.o: In function `pdc_stable_exit':
> drivers/parisc/pdc_stable.o:(.exit.text+0xc4): relocation truncated to fit: R_PARISC_PCREL22F against symbol `_raw_read_lock' defined in .spinlock.text section in kernel/built-in.o
> 
> We have three options to solve this issue:
> a) Turn on CONFIG_MLONGCALLS, which will instruct the compiler to use the
>    -mlongcall option. But this option will hurt performance.
> b) Tell the linker (via vmlinux.lds.S) to move the .init.text and .exit.text
>    sections into the normal .text section. Downside here is, that those sections
>    will not be discarded at runtime.
> c) Move the linkage tables somewhere else. Even if this would be possible I did
>    not find a nice solution without any other bad side effects.
> 
> Since we are compiling a 64bit kernel which usually runs on machines with lots
> of memory, I preferred option b) since performance is usually more imortant than
> some lost memory area.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 4bb095a..4d7a1f0 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -23,13 +23,23 @@
  *    along with this program; if not, write to the Free Software
  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
+
+/*
+ * Put page table entries (swapper_pg_dir) as the first thing in .bss. This
+ * will ensure that it has .bss alignment (PAGE_SIZE).
+ */
+#define BSS_FIRST_SECTIONS	*(.data..vm0.pmd) \
+				*(.data..vm0.pgd) \
+				*(.data..vm0.pte)
+
 #include <asm-generic/vmlinux.lds.h>
+
 /* needed for the processor specific cache alignment size */	
 #include <asm/cache.h>
 #include <asm/page.h>
 #include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
-	
+
 /* ld script to make hppa Linux kernel */
 #ifndef CONFIG_64BIT
 OUTPUT_FORMAT("elf32-hppa-linux")
@@ -53,6 +63,7 @@ SECTIONS
 	.head ALIGN(16) : {
 		HEAD_TEXT
 	} = 0
+
 	.text ALIGN(16) : {
 		TEXT_TEXT
 		SCHED_TEXT
@@ -64,17 +75,23 @@ SECTIONS
 		*(.text.do_sigaltstack)
 		*(.text.do_fork)
 		*(.text.*)
+#if defined(CONFIG_64BIT) && !defined(CONFIG_MLONGCALLS)
+		EXIT_TEXT
+#endif
 		*(.fixup)
 		*(.lock.text)		/* out-of-line lock text */
 		*(.gnu.warning)
 	}
+#if defined(CONFIG_64BIT) && !defined(CONFIG_MLONGCALLS)
+	INIT_TEXT_SECTION(16)
+#endif
 	/* End of text section */
 	_etext = .;
 
 	/* Start of data section */
 	_sdata = .;
 
-	RODATA
+	RO_DATA_SECTION(PAGE_SIZE)
 
 	/* writeable */
 	/* Make sure this is page aligned so
@@ -107,45 +124,36 @@ SECTIONS
 	_edata = .;
 
 	/* BSS */
-	__bss_start = .;
-	/* page table entries need to be PAGE_SIZE aligned */
-	. = ALIGN(PAGE_SIZE);
-	.data..vmpages : {
-		*(.data..vm0.pmd)
-		*(.data..vm0.pgd)
-		*(.data..vm0.pte)
-	}
-	.bss : {
-		*(.bss)
-		*(COMMON)
-	}
-	__bss_stop = .;
+	BSS_SECTION(16, PAGE_SIZE, 16)
+
 
 #ifdef CONFIG_64BIT
+	/* Linkage tables are huge. */
 	. = ALIGN(16);
 	/* Linkage tables */
 	.opd : {
 		*(.opd)
-	} PROVIDE (__gp = .); 
+	} PROVIDE (__gp = .);
 	.plt : {
 		*(.plt)
-	} 
+	}
 	.dlt : {
 		*(.dlt)
 	}
 #endif
 
-	/* reserve space for interrupt stack by aligning __init* to 16k */
-	. = ALIGN(16384);
-	__init_begin = .;
-	INIT_TEXT_SECTION(16384)
 	. = ALIGN(PAGE_SIZE);
-	INIT_DATA_SECTION(16)
+	__init_begin = .;
+
+#if !defined(CONFIG_64BIT) || defined(CONFIG_MLONGCALLS)
+	INIT_TEXT_SECTION(16)
 	/* we have to discard exit text and such at runtime, not link time */
 	.exit.text :
 	{
 		EXIT_TEXT
 	}
+#endif
+	INIT_DATA_SECTION(16)
 	.exit.data :
 	{
 		EXIT_DATA
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From - Thu Nov 08 21:09:56 2018
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X-Mozilla-Keys:                                                                                 
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From: Mike Frysinger <vapier@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: fix re-mmap() of shared file to same fixed address
Date: Sun, 24 Nov 2013 23:41:22 -0500
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On Wednesday 20 November 2013 17:07:42 Helge Deller wrote:
> locale-gen from glibc showed a strange problem on parisc:

pedantic: locale-gen is from distros while glibc itself provides localedef.

> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) =3D 0x42a54000
> mmap2(0x42a54000, 103860, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, =
0)
> =3D -1 EINVAL (Invalid argument)
>=20
> Basically it was just trying to re-mmap() a file at the same address
> which it was given by a previous mmap() call. But this remapping failed
> with EINVAL.
>=20
> The problem is, that when MAP_FIXED and MAP_SHARED flags were used, we
> didn't included the mapping-based offset when we verified the alignment of
> the given fixed address against the offset which we calculated it in the
> previous call.

hmm, which version of glibc were you trying ?  we landed this change recent=
ly:
https://sourceware.org/git/?p=3Dglibc.git;a=3Dcommitdiff_plain;h=3D17db6e8d=
6b12f55e312fcab46faf5d332c806fb6

it's part of glibc-2.18.  we know earlier versions of localedef failed on=20
systems like parisc, although it seemed to really only creep up on 64bit=20
kernels reliably.

based on your description, it sounds like independent bugs, but it also see=
ms=20
a little coincidental ...
=2Dmike

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From - Thu Nov 08 21:09:56 2018
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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH 08/24] parisc/uapi: Use Kbuild logic to provide <asm/types.h>
Date: Mon, 25 Nov 2013 09:55:18 +0100
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Uapi <asm-generic/types.h> just includes <asm-generic/int-ll64.h>

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/include/uapi/asm/Kbuild  |    3 ++-
 arch/parisc/include/uapi/asm/types.h |    6 ------
 2 files changed, 2 insertions(+), 7 deletions(-)
 delete mode 100644 arch/parisc/include/uapi/asm/types.h

diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
index a580642555b6..e0da93254186 100644
--- a/arch/parisc/include/uapi/asm/Kbuild
+++ b/arch/parisc/include/uapi/asm/Kbuild
@@ -1,6 +1,8 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += types.h
+
 header-y += bitsperlong.h
 header-y += byteorder.h
 header-y += errno.h
@@ -27,5 +29,4 @@ header-y += statfs.h
 header-y += swab.h
 header-y += termbits.h
 header-y += termios.h
-header-y += types.h
 header-y += unistd.h
diff --git a/arch/parisc/include/uapi/asm/types.h b/arch/parisc/include/uapi/asm/types.h
deleted file mode 100644
index 8866f9bbdeaf..000000000000
--- a/arch/parisc/include/uapi/asm/types.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _PARISC_TYPES_H
-#define _PARISC_TYPES_H
-
-#include <asm-generic/int-ll64.h>
-
-#endif
-- 
1.7.9.5


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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH 08/24] parisc/uapi: Use Kbuild logic to provide
 <asm/types.h>
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On Mon, 2013-11-25 at 09:55 +0100, Geert Uytterhoeven wrote:
> Uapi <asm-generic/types.h> just includes <asm-generic/int-ll64.h>

This really doesn't look like a good idea:  Firstly the default of
asm-generic/types.h should *not* be int-ll64, because that's for 32 bit
only and most processors are moving towards 64 bit.  Secondly parisc
currently only has a 32 bit userspace, which is why the file is a simple
include of int-ll64.h; however, people are working on 64 bit userspace
(albeit very slowly) and that file would then have to change.  If we
take the file away someone will forget to add the changed file back.

James


> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: linux-parisc@vger.kernel.org
> ---
>  arch/parisc/include/uapi/asm/Kbuild  |    3 ++-
>  arch/parisc/include/uapi/asm/types.h |    6 ------
>  2 files changed, 2 insertions(+), 7 deletions(-)
>  delete mode 100644 arch/parisc/include/uapi/asm/types.h
> 
> diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
> index a580642555b6..e0da93254186 100644
> --- a/arch/parisc/include/uapi/asm/Kbuild
> +++ b/arch/parisc/include/uapi/asm/Kbuild
> @@ -1,6 +1,8 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> +generic-y += types.h
> +
>  header-y += bitsperlong.h
>  header-y += byteorder.h
>  header-y += errno.h
> @@ -27,5 +29,4 @@ header-y += statfs.h
>  header-y += swab.h
>  header-y += termbits.h
>  header-y += termios.h
> -header-y += types.h
>  header-y += unistd.h
> diff --git a/arch/parisc/include/uapi/asm/types.h b/arch/parisc/include/uapi/asm/types.h
> deleted file mode 100644
> index 8866f9bbdeaf..000000000000
> --- a/arch/parisc/include/uapi/asm/types.h
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -#ifndef _PARISC_TYPES_H
> -#define _PARISC_TYPES_H
> -
> -#include <asm-generic/int-ll64.h>
> -
> -#endif




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From: Geert Uytterhoeven <geert@linux-m68k.org>
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Subject: Re: [PATCH 08/24] parisc/uapi: Use Kbuild logic to provide <asm/types.h>
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On Mon, Nov 25, 2013 at 10:55 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Mon, 2013-11-25 at 09:55 +0100, Geert Uytterhoeven wrote:
>> Uapi <asm-generic/types.h> just includes <asm-generic/int-ll64.h>
>
> This really doesn't look like a good idea:  Firstly the default of
> asm-generic/types.h should *not* be int-ll64, because that's for 32 bit
> only and most processors are moving towards 64 bit.  Secondly parisc

In kernelspace, both 32 and 64 bit are ll64.

> currently only has a 32 bit userspace, which is why the file is a simple
> include of int-ll64.h; however, people are working on 64 bit userspace

Sorry, I didn't know you support 32 bit userspace only.

> (albeit very slowly) and that file would then have to change.  If we
> take the file away someone will forget to add the changed file back.

However, is this a "new" 64 bit userspace ABI? If yes, you may want to
consider using ll64 in userspace on 64 bit too, like all "new" 64 bit ports
do (arm64, s390, sparc, tile, x86). Only legacy alpha, ia64, mips and
old ppc use l64.

Or follow the ppc64 road:

/*
 * This is here because we used to use l64 for 64bit powerpc
 * and we don't want to impact user mode with our change to ll64
 * in the kernel.
 *
 * However, some user programs are fine with this.  They can
 * flag __SANE_USERSPACE_TYPES__ to get int-ll64.h here.
 */
#ifndef __KERNEL__
#if !defined(__SANE_USERSPACE_TYPES__) && defined(__powerpc64__)
# include <asm-generic/int-l64.h>
#else
# include <asm-generic/int-ll64.h>
#endif
#endif

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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Subject: Re: [PATCH 08/24] parisc/uapi: Use Kbuild logic to provide
 <asm/types.h>
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On Mon, 2013-11-25 at 11:12 +0100, Geert Uytterhoeven wrote:
> On Mon, Nov 25, 2013 at 10:55 AM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> > On Mon, 2013-11-25 at 09:55 +0100, Geert Uytterhoeven wrote:
> >> Uapi <asm-generic/types.h> just includes <asm-generic/int-ll64.h>
> >
> > This really doesn't look like a good idea:  Firstly the default of
> > asm-generic/types.h should *not* be int-ll64, because that's for 32 bit
> > only and most processors are moving towards 64 bit.  Secondly parisc
> 
> In kernelspace, both 32 and 64 bit are ll64.

Not necessarily; the files exist because of variations in gcc.  Some
versions of gcc have long long being 128 bits and for those you have to
use int-l64.h

> > currently only has a 32 bit userspace, which is why the file is a simple
> > include of int-ll64.h; however, people are working on 64 bit userspace
> 
> Sorry, I didn't know you support 32 bit userspace only.
> 
> > (albeit very slowly) and that file would then have to change.  If we
> > take the file away someone will forget to add the changed file back.
> 
> However, is this a "new" 64 bit userspace ABI? If yes, you may want to
> consider using ll64 in userspace on 64 bit too, like all "new" 64 bit ports
> do (arm64, s390, sparc, tile, x86). Only legacy alpha, ia64, mips and
> old ppc use l64.
> 
> Or follow the ppc64 road:
> 
> /*
>  * This is here because we used to use l64 for 64bit powerpc
>  * and we don't want to impact user mode with our change to ll64
>  * in the kernel.
>  *
>  * However, some user programs are fine with this.  They can
>  * flag __SANE_USERSPACE_TYPES__ to get int-ll64.h here.
>  */
> #ifndef __KERNEL__
> #if !defined(__SANE_USERSPACE_TYPES__) && defined(__powerpc64__)
> # include <asm-generic/int-l64.h>
> #else
> # include <asm-generic/int-ll64.h>
> #endif
> #endif

That's the one I was thinking we might need.

James


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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] parisc: fix re-mmap() of shared file to same fixed address
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
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To: Mike Frysinger <vapier@gentoo.org>
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On 24-Nov-13, at 11:41 PM, Mike Frysinger wrote:

> On Wednesday 20 November 2013 17:07:42 Helge Deller wrote:
>> locale-gen from glibc showed a strange problem on parisc:
>
> pedantic: locale-gen is from distros while glibc itself provides  
> localedef.
>
>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42a54000
>> mmap2(0x42a54000, 103860, PROT_READ|PROT_WRITE, MAP_SHARED| 
>> MAP_FIXED, 3, 0)
>> = -1 EINVAL (Invalid argument)
>>
>> Basically it was just trying to re-mmap() a file at the same address
>> which it was given by a previous mmap() call. But this remapping  
>> failed
>> with EINVAL.
>>
>> The problem is, that when MAP_FIXED and MAP_SHARED flags were used,  
>> we
>> didn't included the mapping-based offset when we verified the  
>> alignment of
>> the given fixed address against the offset which we calculated it  
>> in the
>> previous call.
>
> hmm, which version of glibc were you trying ?  we landed this change  
> recently:
> https://sourceware.org/git/?p=glibc.git;a=commitdiff_plain;h=17db6e8d6b12f55e312fcab46faf5d332c806fb6
>
> it's part of glibc-2.18.  we know earlier versions of localedef  
> failed on
> systems like parisc, although it seemed to really only creep up on  
> 64bit
> kernels reliably.

Besides the above, our mmap allocater doesn't work well when we have a  
large number
of small allocations:
https://rt.perl.org:443/rt3/Ticket/Display.html?id=119567

Effectively, we allocate 4 MB per locale and soon run out of memory.

Problem is here:

/*
  * We need to know the offset to use.  Old scheme was to look for
  * existing mapping and use the same offset.  New scheme is to use the
  * address of the kernel data structure as the seed for the offset.
  * We'll see how that works...
  *
  * The mapping is cacheline aligned, so there's no information in the  
bottom
  * few bits of the address.  We're looking for 10 bits (4MB / 4k), so  
let's
  * drop the bottom 8 bits and use bits 8-17.
  */
static int get_offset(struct address_space *mapping)
{
         return (unsigned long) mapping >> 8;
}

We rarely suceed in allocating two or more maps in the same 4 MB block
of memory.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:09:57 2018
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From: Grant Grundler <grantgrundler@gmail.com>
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Subject: Recycling HW: NICs, PCI cards, A500, J6000, SCSI disks
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I'm not doing anything with my PA-RISC HW and will recycle it. Anyone
interested in it for  hppa linux development?

I have many multi-port PCI cards, 9GB to 36GB SCA SCSI drives, and two
systems. I can ship if you want to pick up the cost of shipping.

cheers,
grant
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Subject: Re: [PATCH] parisc: fix re-mmap() of shared file to same fixed address
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi Mike,

On 11/25/2013 05:41 AM, Mike Frysinger wrote:
> On Wednesday 20 November 2013 17:07:42 Helge Deller wrote:
>> locale-gen from glibc showed a strange problem on parisc:
> 
> pedantic: locale-gen is from distros while glibc itself provides localedef.

Ok.

>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42a54000
>> mmap2(0x42a54000, 103860, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0)
>> = -1 EINVAL (Invalid argument)
>>
>> Basically it was just trying to re-mmap() a file at the same address
>> which it was given by a previous mmap() call. But this remapping failed
>> with EINVAL.
>>
>> The problem is, that when MAP_FIXED and MAP_SHARED flags were used, we
>> didn't included the mapping-based offset when we verified the alignment of
>> the given fixed address against the offset which we calculated it in the
>> previous call.
> 
> hmm, which version of glibc were you trying ?  we landed this change recently:
> https://sourceware.org/git/?p=glibc.git;a=commitdiff_plain;h=17db6e8d6b12f55e312fcab46faf5d332c806fb6
> 
> it's part of glibc-2.18.  we know earlier versions of localedef failed on 
> systems like parisc, although it seemed to really only creep up on 64bit 
> kernels reliably.

It's debian's glibc 2.17-96

> based on your description, it sounds like independent bugs, but it also seems 
> a little coincidental ...

It's at least related.
As long as in the second mmap(ptr,...) the ptr value given is the same as the ptr value
returned by a prior call to mmap(NULL,...) it works.
It's hard to read from the diff if this is the case with the new glibc patch...

Anyway, I think the main thing one should know is, that a mmap(NULL,..) call will in most
cases *not* return a value which is a multiple of SHMLBA. But the offset (ptr%SHMLBA) 
will stay constant as long as the same file handle is used.

Helge
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] kernel/extable: fix address-checks for core_kernel and init
 areas
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To: Linux Kernel <linux-kernel@vger.kernel.org>,
	linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	Ingo Molnar <mingo@elte.hu>,
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The init_kernel_text() and core_kernel_text() functions should not include the
labels _einittext and _etext when checking if an address is inside the .text or
.init sections.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/kernel/extable.c b/kernel/extable.c
index 832cb28..763faf0 100644
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -61,7 +61,7 @@ const struct exception_table_entry *search_exception_tables(unsigned long addr)
 static inline int init_kernel_text(unsigned long addr)
 {
 	if (addr >= (unsigned long)_sinittext &&
-	    addr <= (unsigned long)_einittext)
+	    addr < (unsigned long)_einittext)
 		return 1;
 	return 0;
 }
@@ -69,7 +69,7 @@ static inline int init_kernel_text(unsigned long addr)
 int core_kernel_text(unsigned long addr)
 {
 	if (addr >= (unsigned long)_stext &&
-	    addr <= (unsigned long)_etext)
+	    addr < (unsigned long)_etext)
 		return 1;
 
 	if (system_state == SYSTEM_BOOTING &&
--
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Subject: [PATCH] parisc: use kernel_text_address() in unwind functions
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 76ed62e..ddd988b 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -168,7 +168,7 @@ void unwind_table_remove(struct unwind_table *table)
 }
 
 /* Called from setup_arch to import the kernel unwind info */
-int unwind_init(void)
+int __init unwind_init(void)
 {
 	long start, stop;
 	register unsigned long gp __asm__ ("r27");
@@ -233,7 +233,6 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
 	e = find_unwind_entry(info->ip);
 	if (e == NULL) {
 		unsigned long sp;
-		extern char _stext[], _etext[];
 
 		dbg("Cannot find unwind entry for 0x%lx; forced unwinding\n", info->ip);
 
@@ -281,8 +280,7 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
 				break;
 			info->prev_ip = tmp;
 			sp = info->prev_sp;
-		} while (info->prev_ip < (unsigned long)_stext ||
-			 info->prev_ip > (unsigned long)_etext);
+		} while (!kernel_text_address(info->prev_ip));
 
 		info->rp = 0;
 
@@ -435,9 +433,8 @@ unsigned long return_address(unsigned int level)
 	do {
 		if (unwind_once(&info) < 0 || info.ip == 0)
 			return 0;
-		if (!__kernel_text_address(info.ip)) {
+		if (!kernel_text_address(info.ip))
 			return 0;
-		}
 	} while (info.ip && level--);
 
 	return info.ip;
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: fix kernel memory layout in vmlinux.ld.S
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When building a 64bit kernel sometimes functions in the .init section were not
able to reach the standard kernel function. Main reason for this problem is,
that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus
the distance gets too big for short calls.

One option to avoid this is to use the -mlong-calls compiler option, but this
increases the binary size and introduces a performance penalty.

Instead, with this patch we just lay out the binary differently.  Init code is
stored first, followed by text, R/O and finally R/W data. This means, that init
and text code is now much closer to each other, which is sufficient to reach
each other by short calls.
 
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index d2d5825..d4dc588 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -41,9 +41,7 @@ END(boot_args)
         .import fault_vector_11,code    /* IVA parisc 1.1 32 bit */
 	.import	$global$		/* forward declaration */
 #endif /*!CONFIG_64BIT*/
-	.export _stext,data		/* Kernel want it this way! */
-_stext:
-ENTRY(stext)
+ENTRY(parisc_kernel_start)
 	.proc
 	.callinfo
 
@@ -347,7 +345,7 @@ smp_slave_stext:
 	.procend
 #endif /* CONFIG_SMP */
 
-ENDPROC(stext)
+ENDPROC(parisc_kernel_start)
 
 #ifndef CONFIG_64BIT
 	.section .data..read_mostly
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 4bb095a..0dacc5c 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -6,24 +6,19 @@
  *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
  *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
  *    Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org>
- *    Copyright (C) 2006 Helge Deller <deller@gmx.de>
- *
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *    Copyright (C) 2006-2013 Helge Deller <deller@gmx.de>
+ */
+
+/*
+ * Put page table entries (swapper_pg_dir) as the first thing in .bss. This
+ * will ensure that it has .bss alignment (PAGE_SIZE).
  */
+#define BSS_FIRST_SECTIONS	*(.data..vm0.pmd) \
+				*(.data..vm0.pgd) \
+				*(.data..vm0.pte)
+
 #include <asm-generic/vmlinux.lds.h>
+
 /* needed for the processor specific cache alignment size */	
 #include <asm/cache.h>
 #include <asm/page.h>
@@ -39,7 +34,7 @@ OUTPUT_FORMAT("elf64-hppa-linux")
 OUTPUT_ARCH(hppa:hppa2.0w)
 #endif
 
-ENTRY(_stext)
+ENTRY(parisc_kernel_start)
 #ifndef CONFIG_64BIT
 jiffies = jiffies_64 + 4;
 #else
@@ -49,11 +44,29 @@ SECTIONS
 {
 	. = KERNEL_BINARY_TEXT_START;
 
+	__init_begin = .;
+	HEAD_TEXT_SECTION
+	INIT_TEXT_SECTION(8)
+
+	. = ALIGN(PAGE_SIZE);
+	INIT_DATA_SECTION(PAGE_SIZE)
+	/* we have to discard exit text and such at runtime, not link time */
+	.exit.text :
+	{
+		EXIT_TEXT
+	}
+	.exit.data :
+	{
+		EXIT_DATA
+	}
+	PERCPU_SECTION(8)
+	. = ALIGN(PAGE_SIZE);
+	__init_end = .;
+	/* freed after init ends here */
+
 	_text = .;		/* Text and read-only data */
-	.head ALIGN(16) : {
-		HEAD_TEXT
-	} = 0
-	.text ALIGN(16) : {
+	_stext = .;
+	.text ALIGN(PAGE_SIZE) : {
 		TEXT_TEXT
 		SCHED_TEXT
 		LOCK_TEXT
@@ -68,21 +81,28 @@ SECTIONS
 		*(.lock.text)		/* out-of-line lock text */
 		*(.gnu.warning)
 	}
-	/* End of text section */
+	. = ALIGN(PAGE_SIZE);
 	_etext = .;
+	/* End of text section */
 
 	/* Start of data section */
 	_sdata = .;
 
-	RODATA
+	RO_DATA_SECTION(8)
 
-	/* writeable */
-	/* Make sure this is page aligned so
-	 * that we can properly leave these
-	 * as writable
-	 */
-	. = ALIGN(PAGE_SIZE);
-	data_start = .;
+#ifdef CONFIG_64BIT
+	. = ALIGN(16);
+	/* Linkage tables */
+	.opd : {
+		*(.opd)
+	} PROVIDE (__gp = .);
+	.plt : {
+		*(.plt)
+	}
+	.dlt : {
+		*(.dlt)
+	}
+#endif
 
 	/* unwind info */
 	.PARISC.unwind : {
@@ -91,7 +111,15 @@ SECTIONS
 		__stop___unwind = .;
 	}
 
-	EXCEPTION_TABLE(16)
+	/* writeable */
+	/* Make sure this is page aligned so
+	 * that we can properly leave these
+	 * as writable
+	 */
+	. = ALIGN(PAGE_SIZE);
+	data_start = .;
+
+	EXCEPTION_TABLE(8)
 	NOTES
 
 	/* Data */
@@ -107,54 +135,8 @@ SECTIONS
 	_edata = .;
 
 	/* BSS */
-	__bss_start = .;
-	/* page table entries need to be PAGE_SIZE aligned */
-	. = ALIGN(PAGE_SIZE);
-	.data..vmpages : {
-		*(.data..vm0.pmd)
-		*(.data..vm0.pgd)
-		*(.data..vm0.pte)
-	}
-	.bss : {
-		*(.bss)
-		*(COMMON)
-	}
-	__bss_stop = .;
-
-#ifdef CONFIG_64BIT
-	. = ALIGN(16);
-	/* Linkage tables */
-	.opd : {
-		*(.opd)
-	} PROVIDE (__gp = .); 
-	.plt : {
-		*(.plt)
-	} 
-	.dlt : {
-		*(.dlt)
-	}
-#endif
+	BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 8)
 
-	/* reserve space for interrupt stack by aligning __init* to 16k */
-	. = ALIGN(16384);
-	__init_begin = .;
-	INIT_TEXT_SECTION(16384)
-	. = ALIGN(PAGE_SIZE);
-	INIT_DATA_SECTION(16)
-	/* we have to discard exit text and such at runtime, not link time */
-	.exit.text :
-	{
-		EXIT_TEXT
-	}
-	.exit.data :
-	{
-		EXIT_DATA
-	}
-
-	PERCPU_SECTION(L1_CACHE_BYTES)
-	. = ALIGN(PAGE_SIZE);
-	__init_end = .;
-	/* freed after init ends here */
 	_end = . ;
 
 	STABS_DEBUG
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index b0f96c0..96f8168 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -32,6 +32,7 @@
 #include <asm/sections.h>
 
 extern int  data_start;
+extern void parisc_kernel_start(void);	/* Kernel entry point in head.S */
 
 #if PT_NLEVELS == 3
 /* NOTE: This layout exactly conforms to the hybrid L2/L3 page table layout
@@ -324,8 +325,9 @@ static void __init setup_bootmem(void)
 	reserve_bootmem_node(NODE_DATA(0), 0UL,
 			(unsigned long)(PAGE0->mem_free +
 				PDC_CONSOLE_IO_IODC_SIZE), BOOTMEM_DEFAULT);
-	reserve_bootmem_node(NODE_DATA(0), __pa((unsigned long)_text),
-			(unsigned long)(_end - _text), BOOTMEM_DEFAULT);
+	reserve_bootmem_node(NODE_DATA(0), __pa(KERNEL_BINARY_TEXT_START),
+			(unsigned long)(_end - KERNEL_BINARY_TEXT_START),
+			BOOTMEM_DEFAULT);
 	reserve_bootmem_node(NODE_DATA(0), (bootmap_start_pfn << PAGE_SHIFT),
 			((bootmap_pfn - bootmap_start_pfn) << PAGE_SHIFT),
 			BOOTMEM_DEFAULT);
@@ -378,6 +380,17 @@ static void __init setup_bootmem(void)
 	request_resource(&sysram_resources[0], &pdcdata_resource);
 }
 
+static int __init parisc_text_address(unsigned long vaddr)
+{
+	static unsigned long head_ptr __initdata;
+
+	if (!head_ptr)
+		head_ptr = PAGE_MASK & (unsigned long)
+			dereference_function_descriptor(&parisc_kernel_start);
+
+	return core_kernel_text(vaddr) || vaddr == head_ptr;
+}
+
 static void __init map_pages(unsigned long start_vaddr,
 			     unsigned long start_paddr, unsigned long size,
 			     pgprot_t pgprot, int force)
@@ -466,7 +479,7 @@ static void __init map_pages(unsigned long start_vaddr,
 				 */
 				if (force)
 					pte =  __mk_pte(address, pgprot);
-				else if (core_kernel_text(vaddr) &&
+				else if (parisc_text_address(vaddr) &&
 					 address != fv_addr)
 					pte = __mk_pte(address, PAGE_KERNEL_EXEC);
 				else
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From - Thu Nov 08 21:09:57 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.stable
Subject: [PATCH] parisc: break out SOCK_NONBLOCK define to own asm header file
Date: Sat, 30 Nov 2013 23:42:27 +0100
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Dear stable kernel maintainers,

Can you please schedule this patch for inclusion starting from kernel 3.7+ ?

Upstream commit:
 38c7937 parisc: break out SOCK_NONBLOCK define to own asm header file

Cherry-picking will probably not work easily because of this patch which went
in before: 62748f3 net: introduce SO_MAX_PACING_RATE

Thanks,
Helge

----------------
parisc: break out SOCK_NONBLOCK define to own asm header file

Break SOCK_NONBLOCK out to its own asm-file as other arches do. This
fixes build errors with auditd and probably other packages.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h
new file mode 100644
index 0000000..748016c
--- /dev/null
+++ b/arch/parisc/include/asm/socket.h
@@ -0,0 +1,11 @@
+#ifndef _ASM_SOCKET_H
+#define _ASM_SOCKET_H
+
+#include <uapi/asm/socket.h>
+
+/* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
+ * have to define SOCK_NONBLOCK to a different value here.
+ */
+#define SOCK_NONBLOCK	0x40000000
+
+#endif /* _ASM_SOCKET_H */
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index 71700e6..9f2174f 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -1,5 +1,5 @@
-#ifndef _ASM_SOCKET_H
-#define _ASM_SOCKET_H
+#ifndef _UAPI_ASM_SOCKET_H
+#define _UAPI_ASM_SOCKET_H
 
 #include <asm/sockios.h>
 
@@ -75,9 +75,4 @@
 
 #define SO_BUSY_POLL		0x4027
 
-/* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
- * have to define SOCK_NONBLOCK to a different value here.
- */
-#define SOCK_NONBLOCK   0x40000000

From - Thu Nov 08 21:09:57 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix cache flushing in kmap/kunmap API implementation
 for aio
Date: Sun, 1 Dec 2013 22:18:32 +0100
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To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
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This is now the next try to fix the aio bug in our kmap/kunmap
implementation. It's basically stuff from 

@James: Does this looks better? Can we get a signed-off or Acked-by from
you on this patch?
The old mail thread was named "aio: fix D-cache aliasing issues"..

Dave & James: You can see my current patch description below. I would
be happy if one of you could come up with a better one...

Tested on my C8000 and works OK.

Helge

-------------------
From: John David Anglin <dave.anglin@bell.net>

The aio-stress testcase revealed the problems in our kmap/kunmap API, that we
didn't flushed the dcache page during kmap() on PA8800/PA8900 CPUs, and always
needed to flush the kernel dcache at kunmap(), even if the CPU doesn't require
conherency (< PA8800).

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # 3.9+

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index f0e2784..8ddab5e 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -125,42 +125,44 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 void mark_rodata_ro(void);
 #endif
 
-#ifdef CONFIG_PA8X00
-/* Only pa8800, pa8900 needs this */
-
 #include <asm/kmap_types.h>
 
 #define ARCH_HAS_KMAP
 
-void kunmap_parisc(void *addr);
-
 static inline void *kmap(struct page *page)
 {
 	might_sleep();
+	/* Flush dcache page on CPUs that require coherency. */
+	if (parisc_requires_coherency())
+		flush_dcache_page(page);
 	return page_address(page);
 }
 
 static inline void kunmap(struct page *page)
 {
-	kunmap_parisc(page_address(page));
+	/* Always flush kernel dcache, even if CPU doesn't require conherency.
+	 * Needed on CPUs < PA8800/PA8900 for AIO support. */
+	flush_kernel_dcache_page_addr(page_address(page));
 }
 
 static inline void *kmap_atomic(struct page *page)
 {
 	pagefault_disable();
+	/* Flush dcache page on CPUs that require coherency. */
+	if (parisc_requires_coherency())
+		flush_dcache_page(page);
 	return page_address(page);
 }
 
 static inline void __kunmap_atomic(void *addr)
 {
-	kunmap_parisc(addr);
+	flush_kernel_dcache_page_addr(addr);
 	pagefault_enable();
 }
 
 #define kmap_atomic_prot(page, prot)	kmap_atomic(page)
 #define kmap_atomic_pfn(pfn)	kmap_atomic(pfn_to_page(pfn))
 #define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
-#endif
 
 #endif /* _PARISC_CACHEFLUSH_H */
 
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index cc2290a..9cbee39 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -106,6 +106,7 @@ struct cpuinfo_parisc {
 };
 
 extern struct system_cpuinfo_parisc boot_cpu_data;
+extern int parisc_coherent_cpu;
 DECLARE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
 #define CPU_HVERSION ((boot_cpu_data.hversion >> 4) & 0x0FFF)
@@ -338,8 +339,7 @@ extern unsigned long get_wchan(struct task_struct *p);
 static inline int parisc_requires_coherency(void)
 {
 #ifdef CONFIG_PA8X00
-	return (boot_cpu_data.cpu_type == mako) ||
-		(boot_cpu_data.cpu_type == mako2);
+	return parisc_coherent_cpu;
 #else
 	return 0;
 #endif
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index c035673..3c6899f 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -391,8 +391,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
 {
 	clear_page_asm(vto);
-	if (!parisc_requires_coherency())
-		flush_kernel_dcache_page_asm(vto);
 }
 EXPORT_SYMBOL(clear_user_page);
 
@@ -401,28 +399,18 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 {
 	/* Copy using kernel mapping.  No coherency is needed
 	   (all in kmap/kunmap) on machines that don't support
-	   non-equivalent aliasing.  However, the `from' page
-	   needs to be flushed before it can be accessed through
-	   the kernel mapping. */
-	preempt_disable();
-	flush_dcache_page_asm(__pa(vfrom), vaddr);
-	preempt_enable();
+	   non-equivalent aliasing.  On other machines, the
+	   `from' page needs to be flushed before it can be
+	   accessed through the kernel mapping. */
+	if (!parisc_requires_coherency()) {
+		preempt_disable();
+		flush_dcache_page_asm(__pa(vfrom), vaddr);
+		preempt_enable();
+	}
 	copy_page_asm(vto, vfrom);
-	if (!parisc_requires_coherency())
-		flush_kernel_dcache_page_asm(vto);
 }
 EXPORT_SYMBOL(copy_user_page);
 
-#ifdef CONFIG_PA8X00
-
-void kunmap_parisc(void *addr)
-{
-	if (parisc_requires_coherency())
-		flush_kernel_dcache_page_addr(addr);
-}
-EXPORT_SYMBOL(kunmap_parisc);
-#endif
-
 void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 {
 	unsigned long flags;
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index b68d977..f1b8c48 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -45,6 +45,11 @@
 struct system_cpuinfo_parisc boot_cpu_data __read_mostly;
 EXPORT_SYMBOL(boot_cpu_data);
 
+#ifdef CONFIG_PA8X00
+int parisc_coherent_cpu __read_mostly;
+EXPORT_SYMBOL(parisc_coherent_cpu);
+#endif
+
 DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
 extern int update_cr16_clocksource(void);	/* from time.c */
@@ -271,6 +276,11 @@ void __init collect_boot_cpu_data(void)
 		printk(KERN_INFO "model %s\n",
 			boot_cpu_data.pdc.sys_model_name);
 
+#ifdef CONFIG_PA8X00
+	parisc_coherent_cpu = (boot_cpu_data.cpu_type == mako) ||
+			      (boot_cpu_data.cpu_type == mako2);
+#endif
+
 	boot_cpu_data.hversion =  boot_cpu_data.pdc.model.hversion;
 	boot_cpu_data.sversion =  boot_cpu_data.pdc.model.sversion;
 
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.nfs,gmane.linux.kernel
Subject: [PATCH] nfs: fix do_div() warning by instead using sector_div()
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When compiling a 32bit kernel with CONFIG_LBDAF=3Dn the compiler compla=
ins like
shown below.  Fix this warning by instead using sector_div() which is p=
rovided
by the kernel.h header file.
=20
fs/nfs/blocklayout/extents.c: In function =E2=80=98normalize=E2=80=99:
include/asm-generic/div64.h:43:28: warning: comparison of distinct poin=
ter types lacks a cast [enabled by default]
fs/nfs/blocklayout/extents.c:47:13: note: in expansion of macro =E2=80=98=
do_div=E2=80=99
nfs/blocklayout/extents.c:47:2: warning: right shift count >=3D width o=
f type [enabled by default]
fs/nfs/blocklayout/extents.c:47:2: warning: passing argument 1 of =E2=80=
=98__div64_32=E2=80=99 from incompatible pointer type [enabled by defau=
lt]
include/asm-generic/div64.h:35:17: note: expected =E2=80=98uint64_t *=E2=
=80=99 but argument is of type =E2=80=98sector_t *=E2=80=99
 extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/fs/nfs/blocklayout/extents.c b/fs/nfs/blocklayout/extents.=
c
index 9c3e117..4d01614 100644
--- a/fs/nfs/blocklayout/extents.c
+++ b/fs/nfs/blocklayout/extents.c
@@ -44,7 +44,7 @@
 static inline sector_t normalize(sector_t s, int base)
 {
 	sector_t tmp =3D s; /* Since do_div modifies its argument */
-	return s - do_div(tmp, base);
+	return s - sector_div(tmp, base);
 }
=20
 static inline sector_t normalize_up(sector_t s, int base)
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.device-mapper.devel
Subject: [PATCH] md: fix compiler warning: large integer implicitly truncated
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Compiling a 32bit kernel with CONFIG_LBDAF=3Dn gives this compiler warn=
ing:
/drivers/md/md.c: In function =E2=80=98super_90_load=E2=80=99:
/drivers/md/md.c:1068:3: warning: large integer implicitly truncated to=
 unsigned type [-Woverflow]

=46ix it by casting the calculated value to a sector_t type.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/md/md.c b/drivers/md/md.c
index e60cebf..b56f1c7 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1065,7 +1065,7 @@ static int super_90_load(struct md_rdev *rdev, st=
ruct md_rdev *refdev, int minor
 	 * record this size)
 	 */
 	if (rdev->sectors >=3D (2ULL << 32) && sb->level >=3D 1)
-		rdev->sectors =3D (2ULL << 32) - 2;
+		rdev->sectors =3D (sector_t) ((2ULL << 32) - 2);
=20
 	if (rdev->sectors < ((sector_t)sb->size) * 2 && sb->level >=3D 1)
 		/* "this cannot possibly happen" ... */
@@ -1356,7 +1356,7 @@ super_90_rdev_size_change(struct md_rdev *rdev, s=
ector_t num_sectors)
 	 * 4TB =3D=3D 2^32 KB, or 2*2^32 sectors.
 	 */
 	if (num_sectors >=3D (2ULL << 32) && rdev->mddev->level >=3D 1)
-		num_sectors =3D (2ULL << 32) - 2;
+		num_sectors =3D (sector_t) ((2ULL << 32) - 2);
 	md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
 		       rdev->sb_page);
 	md_super_wait(rdev->mddev);
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From: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.device-mapper.devel
Subject: Re: [dm-devel] [PATCH] md: fix compiler warning: large integer
 implicitly truncated to unsigned type
Date: Tue, 3 Dec 2013 11:47:19 -0200
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To: Helge Deller <deller@gmx.de>
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On Mon, Dec 02, 2013 at 08:12:20PM +0100, Helge Deller wrote:
> Compiling a 32bit kernel with CONFIG_LBDAF=3Dn gives this compiler wa=
rning:
> /drivers/md/md.c: In function =E2=80=98super_90_load=E2=80=99:
> /drivers/md/md.c:1068:3: warning: large integer implicitly truncated =
to unsigned type [-Woverflow]
>=20
> Fix it by casting the calculated value to a sector_t type.
>=20
> Signed-off-by: Helge Deller <deller@gmx.de>
>=20
> diff --git a/drivers/md/md.c b/drivers/md/md.c
> index e60cebf..b56f1c7 100644
> --- a/drivers/md/md.c
> +++ b/drivers/md/md.c
> @@ -1065,7 +1065,7 @@ static int super_90_load(struct md_rdev *rdev, =
struct md_rdev *refdev, int minor
>  	 * record this size)
>  	 */
>  	if (rdev->sectors >=3D (2ULL << 32) && sb->level >=3D 1)
> -		rdev->sectors =3D (2ULL << 32) - 2;
> +		rdev->sectors =3D (sector_t) ((2ULL << 32) - 2);
> =20
>  	if (rdev->sectors < ((sector_t)sb->size) * 2 && sb->level >=3D 1)
>  		/* "this cannot possibly happen" ... */
> @@ -1356,7 +1356,7 @@ super_90_rdev_size_change(struct md_rdev *rdev,=
 sector_t num_sectors)
>  	 * 4TB =3D=3D 2^32 KB, or 2*2^32 sectors.
>  	 */
>  	if (num_sectors >=3D (2ULL << 32) && rdev->mddev->level >=3D 1)
> -		num_sectors =3D (2ULL << 32) - 2;
> +		num_sectors =3D (sector_t) ((2ULL << 32) - 2);
>  	md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
>  		       rdev->sb_page);
>  	md_super_wait(rdev->mddev);
>=20

It does overflow and get truncated on 32-bit systems without LABDF.
Casting is just hiding the problem! 32-bit systems without LABDF do not
support block devices larger than 2TB, and thus, should not worry about
larger than 4TB devices.

This code should either be ifdef'd to 64-bit or LABDF, or should test
for the size of sector_t. The second option would still need some chang=
e
in the code in order to avoid the warning, or we should don't care abou=
t
them, since testing for num_sectors >=3D (2ULL << 32) should always be
false.

Regards.
Cascardo.

--
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From - Thu Nov 08 21:09:58 2018
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Path: news.gmane.org!not-for-mail
From: Mel Gorman <mgorman@suse.de>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: [PATCH] mm, show_mem: Remove SHOW_MEM_FILTER_PAGE_COUNT
Date: Tue, 3 Dec 2013 14:57:21 +0000
Lines: 392
Approved: news@gmane.org
Message-ID: <20131203145721.GQ11295@suse.de>
References: <20131016104228.GM11028@suse.de>
 <alpine.DEB.2.02.1310161809470.12062@chino.kir.corp.google.com>
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Cc: David Rientjes <rientjes@google.com>,
	Tony Luck <tony.luck@intel.com>,
	Russell King <linux@arm.linux.org.uk>,
	James Bottomley <jejb@parisc-linux.org>,
	linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org,
	linux-parisc@vger.kernel.org, Linux-MM <linux-mm@kvack.org>,
	LKML <linux-kernel@vger.kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Original-X-From: linux-ia64-owner@vger.kernel.org Tue Dec 03 15:57:34 2013
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Xref: news.gmane.org gmane.linux.ports.ia64:23488 gmane.linux.ports.arm.kernel:284574 gmane.linux.ports.parisc:5530 gmane.linux.kernel.mm:109968 gmane.linux.kernel:1606202
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/23488>

Commit 4b59e6c4 (mm, show_mem: suppress page counts in non-blockable
contexts) introduced SHOW_MEM_FILTER_PAGE_COUNT to suppress PFN walks
on large memory machines. Commit c78e9363 (mm: do not walk all of system
memory during show_mem) avoided a PFN walk in the generic show_mem helper
which removes the requirement for SHOW_MEM_FILTER_PAGE_COUNT in that case.

This patch removes PFN walkers from the arch-specific implementations that
report on a per-node or per-zone granularity. ARM and unicore32 still do
a PFN walk as they report memory usage on each bank which is a much finer
granularity where the debugging information may still be of use. As the
remaining arches doing PFN walks have relatively small amounts of memory,
this patch simply removes SHOW_MEM_FILTER_PAGE_COUNT.

Signed-off-by: Mel Gorman <mgorman@suse.de>
---
 arch/arm/mm/init.c       |  3 ---
 arch/ia64/mm/contig.c    | 68 ------------------------------------------------
 arch/ia64/mm/discontig.c | 63 --------------------------------------------
 arch/ia64/mm/init.c      | 48 ++++++++++++++++++++++++++++++++++
 arch/parisc/mm/init.c    | 62 ++++++++++++++-----------------------------
 arch/unicore32/mm/init.c |  3 ---
 include/linux/mm.h       |  1 -
 lib/show_mem.c           |  3 ---
 mm/page_alloc.c          |  7 -----
 9 files changed, 68 insertions(+), 190 deletions(-)

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 3e8f106..2e71e24 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -92,9 +92,6 @@ void show_mem(unsigned int filter)
 	printk("Mem-info:\n");
 	show_free_areas(filter);
 
-	if (filter & SHOW_MEM_FILTER_PAGE_COUNT)
-		return;
-
 	for_each_bank (i, mi) {
 		struct membank *bank = &mi->bank[i];
 		unsigned int pfn1, pfn2;
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index da5237d..52715a7 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -31,74 +31,6 @@
 static unsigned long max_gap;
 #endif
 
-/**
- * show_mem - give short summary of memory stats
- *
- * Shows a simple page count of reserved and used pages in the system.
- * For discontig machines, it does this on a per-pgdat basis.
- */
-void show_mem(unsigned int filter)
-{
-	int i, total_reserved = 0;
-	int total_shared = 0, total_cached = 0;
-	unsigned long total_present = 0;
-	pg_data_t *pgdat;
-
-	printk(KERN_INFO "Mem-info:\n");
-	show_free_areas(filter);
-	printk(KERN_INFO "Node memory in pages:\n");
-	if (filter & SHOW_MEM_FILTER_PAGE_COUNT)
-		return;
-	for_each_online_pgdat(pgdat) {
-		unsigned long present;
-		unsigned long flags;
-		int shared = 0, cached = 0, reserved = 0;
-		int nid = pgdat->node_id;
-
-		if (skip_free_areas_node(filter, nid))
-			continue;
-		pgdat_resize_lock(pgdat, &flags);
-		present = pgdat->node_present_pages;
-		for(i = 0; i < pgdat->node_spanned_pages; i++) {
-			struct page *page;
-			if (unlikely(i % MAX_ORDER_NR_PAGES == 0))
-				touch_nmi_watchdog();
-			if (pfn_valid(pgdat->node_start_pfn + i))
-				page = pfn_to_page(pgdat->node_start_pfn + i);
-			else {
-#ifdef CONFIG_VIRTUAL_MEM_MAP
-				if (max_gap < LARGE_GAP)
-					continue;
-#endif
-				i = vmemmap_find_next_valid_pfn(nid, i) - 1;
-				continue;
-			}
-			if (PageReserved(page))
-				reserved++;
-			else if (PageSwapCache(page))
-				cached++;
-			else if (page_count(page))
-				shared += page_count(page)-1;
-		}
-		pgdat_resize_unlock(pgdat, &flags);
-		total_present += present;
-		total_reserved += reserved;
-		total_cached += cached;
-		total_shared += shared;
-		printk(KERN_INFO "Node %4d:  RAM: %11ld, rsvd: %8d, "
-		       "shrd: %10d, swpd: %10d\n", nid,
-		       present, reserved, shared, cached);
-	}
-	printk(KERN_INFO "%ld pages of RAM\n", total_present);
-	printk(KERN_INFO "%d reserved pages\n", total_reserved);
-	printk(KERN_INFO "%d pages shared\n", total_shared);
-	printk(KERN_INFO "%d pages swap cached\n", total_cached);
-	printk(KERN_INFO "Total of %ld pages in page table cache\n",
-	       quicklist_total_size());
-	printk(KERN_INFO "%ld free buffer pages\n", nr_free_buffer_pages());
-}
-
-
 /* physical address where the bootmem map is located */
 unsigned long bootmap_start;
 
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 2de08f4..8786268 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -608,69 +608,6 @@ void *per_cpu_init(void)
 #endif /* CONFIG_SMP */
 
 /**
- * show_mem - give short summary of memory stats
- *
- * Shows a simple page count of reserved and used pages in the system.
- * For discontig machines, it does this on a per-pgdat basis.
- */
-void show_mem(unsigned int filter)
-{
-	int i, total_reserved = 0;
-	int total_shared = 0, total_cached = 0;
-	unsigned long total_present = 0;
-	pg_data_t *pgdat;
-
-	printk(KERN_INFO "Mem-info:\n");
-	show_free_areas(filter);
-	if (filter & SHOW_MEM_FILTER_PAGE_COUNT)
-		return;
-	printk(KERN_INFO "Node memory in pages:\n");
-	for_each_online_pgdat(pgdat) {
-		unsigned long present;
-		unsigned long flags;
-		int shared = 0, cached = 0, reserved = 0;
-		int nid = pgdat->node_id;
-
-		if (skip_free_areas_node(filter, nid))
-			continue;
-		pgdat_resize_lock(pgdat, &flags);
-		present = pgdat->node_present_pages;
-		for(i = 0; i < pgdat->node_spanned_pages; i++) {
-			struct page *page;
-			if (unlikely(i % MAX_ORDER_NR_PAGES == 0))
-				touch_nmi_watchdog();
-			if (pfn_valid(pgdat->node_start_pfn + i))
-				page = pfn_to_page(pgdat->node_start_pfn + i);
-			else {
-				i = vmemmap_find_next_valid_pfn(nid, i) - 1;
-				continue;
-			}
-			if (PageReserved(page))
-				reserved++;
-			else if (PageSwapCache(page))
-				cached++;
-			else if (page_count(page))
-				shared += page_count(page)-1;
-		}
-		pgdat_resize_unlock(pgdat, &flags);
-		total_present += present;
-		total_reserved += reserved;
-		total_cached += cached;
-		total_shared += shared;
-		printk(KERN_INFO "Node %4d:  RAM: %11ld, rsvd: %8d, "
-		       "shrd: %10d, swpd: %10d\n", nid,
-		       present, reserved, shared, cached);
-	}
-	printk(KERN_INFO "%ld pages of RAM\n", total_present);
-	printk(KERN_INFO "%d reserved pages\n", total_reserved);
-	printk(KERN_INFO "%d pages shared\n", total_shared);
-	printk(KERN_INFO "%d pages swap cached\n", total_cached);
-	printk(KERN_INFO "Total of %ld pages in page table cache\n",
-	       quicklist_total_size());
-	printk(KERN_INFO "%ld free buffer pages\n", nr_free_buffer_pages());
-}
-
-/**
  * call_pernode_memory - use SRAT to call callback functions with node info
  * @start: physical start of range
  * @len: length of range
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 88504ab..25c3502 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -684,3 +684,51 @@ per_linux32_init(void)
 }
 
 __initcall(per_linux32_init);
+
+/**
+ * show_mem - give short summary of memory stats
+ *
+ * Shows a simple page count of reserved and used pages in the system.
+ * For discontig machines, it does this on a per-pgdat basis.
+ */
+void show_mem(unsigned int filter)
+{
+	int total_reserved = 0;
+	unsigned long total_present = 0;
+	pg_data_t *pgdat;
+
+	printk(KERN_INFO "Mem-info:\n");
+	show_free_areas(filter);
+	printk(KERN_INFO "Node memory in pages:\n");
+	for_each_online_pgdat(pgdat) {
+		unsigned long present;
+		unsigned long flags;
+		int reserved = 0;
+		int nid = pgdat->node_id;
+		int zoneid;
+
+		if (skip_free_areas_node(filter, nid))
+			continue;
+		pgdat_resize_lock(pgdat, &flags);
+
+		for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
+			struct zone *zone = &pgdat->node_zones[zoneid];
+			if (!populated_zone(zone))
+				continue;
+
+			reserved += zone->present_pages - zone->managed_pages;
+		}
+		present = pgdat->node_present_pages;
+
+		pgdat_resize_unlock(pgdat, &flags);
+		total_present += present;
+		total_reserved += reserved;
+		printk(KERN_INFO "Node %4d:  RAM: %11ld, rsvd: %8d, ",
+		       nid, present, reserved);
+	}
+	printk(KERN_INFO "%ld pages of RAM\n", total_present);
+	printk(KERN_INFO "%d reserved pages\n", total_reserved);
+	printk(KERN_INFO "Total of %ld pages in page table cache\n",
+	       quicklist_total_size());
+	printk(KERN_INFO "%ld free buffer pages\n", nr_free_buffer_pages());
+}
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index b0f96c0..e12d5a7 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -632,55 +632,33 @@ EXPORT_SYMBOL(empty_zero_page);
 
 void show_mem(unsigned int filter)
 {
-	int i,free = 0,total = 0,reserved = 0;
-	int shared = 0, cached = 0;
+	int total = 0,reserved = 0;
+	pg_data_t *pgdat;
 
 	printk(KERN_INFO "Mem-info:\n");
 	show_free_areas(filter);
-	if (filter & SHOW_MEM_FILTER_PAGE_COUNT)
-		return;
-#ifndef CONFIG_DISCONTIGMEM
-	i = max_mapnr;
-	while (i-- > 0) {
-		total++;
-		if (PageReserved(mem_map+i))
-			reserved++;
-		else if (PageSwapCache(mem_map+i))
-			cached++;
-		else if (!page_count(&mem_map[i]))
-			free++;
-		else
-			shared += page_count(&mem_map[i]) - 1;
-	}
-#else
-	for (i = 0; i < npmem_ranges; i++) {
-		int j;
 
-		for (j = node_start_pfn(i); j < node_end_pfn(i); j++) {
-			struct page *p;
-			unsigned long flags;
-
-			pgdat_resize_lock(NODE_DATA(i), &flags);
-			p = nid_page_nr(i, j) - node_start_pfn(i);
-
-			total++;
-			if (PageReserved(p))
-				reserved++;
-			else if (PageSwapCache(p))
-				cached++;
-			else if (!page_count(p))
-				free++;
-			else
-				shared += page_count(p) - 1;
-			pgdat_resize_unlock(NODE_DATA(i), &flags);
-        	}
+	for_each_online_pgdat(pgdat) {
+		unsigned long flags;
+		int zoneid;
+
+		pgdat_resize_lock(pgdat, &flags);
+		for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
+			struct zone *zone = &pgdat->node_zones[zoneid];
+			if (!populated_zone(zone))
+				continue;
+
+			total += zone->present_pages;
+			reserved = zone->present_pages - zone->managed_pages;
+
+			if (is_highmem_idx(zoneid))
+				highmem += zone->present_pages;
+		}
+		pgdat_resize_unlock(pgdat, &flags);
 	}
-#endif
+
 	printk(KERN_INFO "%d pages of RAM\n", total);
 	printk(KERN_INFO "%d reserved pages\n", reserved);
-	printk(KERN_INFO "%d pages shared\n", shared);
-	printk(KERN_INFO "%d pages swap cached\n", cached);
-
 
 #ifdef CONFIG_DISCONTIGMEM
 	{
diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
index ae6bc03..be2bde9 100644
--- a/arch/unicore32/mm/init.c
+++ b/arch/unicore32/mm/init.c
@@ -66,9 +66,6 @@ void show_mem(unsigned int filter)
 	printk(KERN_DEFAULT "Mem-info:\n");
 	show_free_areas(filter);
 
-	if (filter & SHOW_MEM_FILTER_PAGE_COUNT)
-		return;
-
 	for_each_bank(i, mi) {
 		struct membank *bank = &mi->bank[i];
 		unsigned int pfn1, pfn2;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1cedd00..42b2486 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -984,7 +984,6 @@ extern void pagefault_out_of_memory(void);
  * various contexts.
  */
 #define SHOW_MEM_FILTER_NODES		(0x0001u)	/* disallowed nodes */
-#define SHOW_MEM_FILTER_PAGE_COUNT	(0x0002u)	/* page type count */
 
 extern void show_free_areas(unsigned int flags);
 extern bool skip_free_areas_node(unsigned int flags, int nid);
diff --git a/lib/show_mem.c b/lib/show_mem.c
index 5847a49..f58689f 100644
--- a/lib/show_mem.c
+++ b/lib/show_mem.c
@@ -17,9 +17,6 @@ void show_mem(unsigned int filter)
 	printk("Mem-Info:\n");
 	show_free_areas(filter);
 
-	if (filter & SHOW_MEM_FILTER_PAGE_COUNT)
-		return;
-
 	for_each_online_pgdat(pgdat) {
 		unsigned long flags;
 		int zoneid;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 580a5f0..dcb61e8 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2073,13 +2073,6 @@ void warn_alloc_failed(gfp_t gfp_mask, int order, const char *fmt, ...)
 		return;
 
 	/*
-	 * Walking all memory to count page types is very expensive and should
-	 * be inhibited in non-blockable contexts.
-	 */
-	if (!(gfp_mask & __GFP_WAIT))
-		filter |= SHOW_MEM_FILTER_PAGE_COUNT;
-
-	/*
 	 * This documents exceptions given to allocations in certain
 	 * contexts that are allowed to allocate outside current's set
 	 * of allowed nodes.
--
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From - Thu Nov 08 21:09:58 2018
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From: Luis Henriques <luis.henriques@canonical.com>
Newsgroups: gmane.linux.kernel.stable,gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: break out SOCK_NONBLOCK define to own asm header
 file
Date: Tue, 3 Dec 2013 19:28:05 +0000
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To: Helge Deller <deller@gmx.de>
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On Sat, Nov 30, 2013 at 11:42:27PM +0100, Helge Deller wrote:
> Dear stable kernel maintainers,
> 
> Can you please schedule this patch for inclusion starting from kernel 3.7+ ?
> 
> Upstream commit:
>  38c7937 parisc: break out SOCK_NONBLOCK define to own asm header file
> 
> Cherry-picking will probably not work easily because of this patch which went
> in before: 62748f3 net: introduce SO_MAX_PACING_RATE
> 
> Thanks,
> Helge

Thank you, I am queuing this patch for the 3.11 kernel.

Cheers,
--
Luis


> 
> ---------------- parisc: break out SOCK_NONBLOCK define to own asm
> header file
> 
> Break SOCK_NONBLOCK out to its own asm-file as other arches do. This
> fixes build errors with auditd and probably other packages.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h
> new file mode 100644
> index 0000000..748016c
> --- /dev/null
> +++ b/arch/parisc/include/asm/socket.h
> @@ -0,0 +1,11 @@
> +#ifndef _ASM_SOCKET_H
> +#define _ASM_SOCKET_H
> +
> +#include <uapi/asm/socket.h>
> +
> +/* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
> + * have to define SOCK_NONBLOCK to a different value here.
> + */
> +#define SOCK_NONBLOCK	0x40000000
> +
> +#endif /* _ASM_SOCKET_H */
> diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
> index 71700e6..9f2174f 100644
> --- a/arch/parisc/include/uapi/asm/socket.h
> +++ b/arch/parisc/include/uapi/asm/socket.h
> @@ -1,5 +1,5 @@
> -#ifndef _ASM_SOCKET_H
> -#define _ASM_SOCKET_H
> +#ifndef _UAPI_ASM_SOCKET_H
> +#define _UAPI_ASM_SOCKET_H
>  
>  #include <asm/sockios.h>
>  
> @@ -75,9 +75,4 @@
>  
>  #define SO_BUSY_POLL		0x4027
>  
> -/* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
> - * have to define SOCK_NONBLOCK to a different value here.
> - */
> -#define SOCK_NONBLOCK   0x40000000
> -
> -#endif /* _ASM_SOCKET_H */
> +#endif /* _UAPI_ASM_SOCKET_H */
> --
> To unsubscribe from this list: send the line "unsubscribe stable" in
> the body of a message to majordomo@vger.kernel.org
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: update 64bit defconfigs and use SIL680 instead of
 SIIMAGE driver
Date: Tue, 3 Dec 2013 23:02:26 +0100
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index ec1b014..acacd34 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -50,7 +50,7 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECD=y
 CONFIG_BLK_DEV_NS87415=y
-CONFIG_BLK_DEV_SIIMAGE=m
+CONFIG_PATA_SIL680=m
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=y
diff --git a/arch/parisc/configs/c8000_defconfig b/arch/parisc/configs/c8000_defconfig
index bb81d02..8249ac9 100644
--- a/arch/parisc/configs/c8000_defconfig
+++ b/arch/parisc/configs/c8000_defconfig
@@ -80,8 +80,6 @@ CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECD=y
 CONFIG_BLK_DEV_PLATFORM=y
 CONFIG_BLK_DEV_GENERIC=y
-CONFIG_BLK_DEV_SIIMAGE=y
-CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=m
 CONFIG_BLK_DEV_SR=m
@@ -93,6 +91,8 @@ CONFIG_SCSI_FC_ATTRS=y
 CONFIG_SCSI_SAS_LIBSAS=m
 CONFIG_ISCSI_TCP=m
 CONFIG_ISCSI_BOOT_SYSFS=m
+CONFIG_ATA=y
+CONFIG_PATA_SIL680=y
 CONFIG_FUSION=y
 CONFIG_FUSION_SPI=y
 CONFIG_FUSION_SAS=y
@@ -113,9 +113,8 @@ CONFIG_INPUT_FF_MEMLESS=m
 # CONFIG_KEYBOARD_ATKBD is not set
 # CONFIG_KEYBOARD_HIL_OLD is not set
 # CONFIG_KEYBOARD_HIL is not set
-CONFIG_MOUSE_PS2=m
+# CONFIG_MOUSE_PS2 is not set
 CONFIG_INPUT_MISC=y
-CONFIG_INPUT_CM109=m
 CONFIG_SERIO_SERPORT=m
 CONFIG_SERIO_PARKBD=m
 CONFIG_SERIO_GSCPS2=m
@@ -166,34 +165,6 @@ CONFIG_SND_VERBOSE_PRINTK=y
 CONFIG_SND_AD1889=m
 # CONFIG_SND_USB is not set
 # CONFIG_SND_GSC is not set
-CONFIG_HID_A4TECH=m
-CONFIG_HID_APPLE=m
-CONFIG_HID_BELKIN=m
-CONFIG_HID_CHERRY=m
-CONFIG_HID_CHICONY=m
-CONFIG_HID_CYPRESS=m
-CONFIG_HID_DRAGONRISE=m
-CONFIG_HID_EZKEY=m
-CONFIG_HID_KYE=m
-CONFIG_HID_GYRATION=m
-CONFIG_HID_TWINHAN=m
-CONFIG_HID_KENSINGTON=m
-CONFIG_HID_LOGITECH=m
-CONFIG_HID_LOGITECH_DJ=m
-CONFIG_HID_MICROSOFT=m
-CONFIG_HID_MONTEREY=m
-CONFIG_HID_NTRIG=m
-CONFIG_HID_ORTEK=m
-CONFIG_HID_PANTHERLORD=m
-CONFIG_HID_PETALYNX=m
-CONFIG_HID_SAMSUNG=m
-CONFIG_HID_SUNPLUS=m
-CONFIG_HID_GREENASIA=m
-CONFIG_HID_SMARTJOYPLUS=m
-CONFIG_HID_TOPSEED=m
-CONFIG_HID_THRUSTMASTER=m
-CONFIG_HID_ZEROPLUS=m
-CONFIG_USB_HID=m
 CONFIG_USB=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_STORAGE=y
diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig
index 1413b8d..28c1b5d 100644
--- a/arch/parisc/configs/generic-64bit_defconfig
+++ b/arch/parisc/configs/generic-64bit_defconfig
@@ -67,7 +67,6 @@ CONFIG_IDE_GD=m
 CONFIG_IDE_GD_ATAPI=y
 CONFIG_BLK_DEV_IDECD=m
 CONFIG_BLK_DEV_NS87415=y
-CONFIG_BLK_DEV_SIIMAGE=y
 # CONFIG_SCSI_PROC_FS is not set
 CONFIG_BLK_DEV_SD=y
 CONFIG_BLK_DEV_SR=y
@@ -81,6 +80,7 @@ CONFIG_SCSI_ZALON=y
 CONFIG_SCSI_QLA_ISCSI=m
 CONFIG_SCSI_DH=y
 CONFIG_ATA=y
+CONFIG_PATA_SIL680=y
 CONFIG_ATA_GENERIC=y
 CONFIG_MD=y
 CONFIG_MD_LINEAR=m
@@ -161,7 +161,7 @@ CONFIG_SLIP_MODE_SLIP6=y
 CONFIG_INPUT_EVDEV=y
 # CONFIG_KEYBOARD_HIL_OLD is not set
 # CONFIG_KEYBOARD_HIL is not set
-# CONFIG_INPUT_MOUSE is not set
+# CONFIG_MOUSE_PS2 is not set
 CONFIG_INPUT_MISC=y
 CONFIG_SERIO_SERPORT=m
 # CONFIG_HP_SDC is not set
@@ -215,32 +215,7 @@ CONFIG_BACKLIGHT_LCD_SUPPORT=y
 CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
 CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_MONO is not set
-CONFIG_HID=m
 CONFIG_HIDRAW=y
-CONFIG_HID_DRAGONRISE=m
-CONFIG_DRAGONRISE_FF=y
-CONFIG_HID_KYE=m
-CONFIG_HID_GYRATION=m
-CONFIG_HID_TWINHAN=m
-CONFIG_LOGITECH_FF=y
-CONFIG_LOGIRUMBLEPAD2_FF=y
-CONFIG_HID_NTRIG=m
-CONFIG_HID_PANTHERLORD=m
-CONFIG_PANTHERLORD_FF=y
-CONFIG_HID_PETALYNX=m
-CONFIG_HID_SAMSUNG=m
-CONFIG_HID_SONY=m
-CONFIG_HID_SUNPLUS=m
-CONFIG_HID_GREENASIA=m
-CONFIG_GREENASIA_FF=y
-CONFIG_HID_SMARTJOYPLUS=m
-CONFIG_SMARTJOYPLUS_FF=y
-CONFIG_HID_TOPSEED=m
-CONFIG_HID_THRUSTMASTER=m
-CONFIG_THRUSTMASTER_FF=y
-CONFIG_HID_ZEROPLUS=m
-CONFIG_ZEROPLUS_FF=y
-CONFIG_USB_HID=m
 CONFIG_HID_PID=y
 CONFIG_USB_HIDDEV=y
 CONFIG_USB=y
@@ -250,13 +225,8 @@ CONFIG_USB_DYNAMIC_MINORS=y
 CONFIG_USB_MON=m
 CONFIG_USB_WUSB_CBAF=m
 CONFIG_USB_XHCI_HCD=m
-CONFIG_USB_EHCI_HCD=m
-CONFIG_USB_OHCI_HCD=m
-CONFIG_USB_R8A66597_HCD=m
-CONFIG_USB_ACM=m
-CONFIG_USB_PRINTER=m
-CONFIG_USB_WDM=m
-CONFIG_USB_TMC=m
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_OHCI_HCD=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_TRIGGERS=y
--
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From - Thu Nov 08 21:09:58 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: add flexible mmap layout support
Date: Tue, 3 Dec 2013 23:18:46 +0100
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- initial version
- add mmap address & stack randomization
- probably fixes a few other bugs in the mmap code
- can be enabled/turned off by "echo 0/1 > /proc/sys/vm/legacy_va_layout
- new flexible mmap layout is by default turned on

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index ad2b503..80db5b2 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -348,4 +348,11 @@ struct pt_regs;	/* forward declaration... */
 
 #define ELF_HWCAP	0
 
+/* Stack randomization: 1GB for 64bit, 8MB for 32bit */
+#ifdef CONFIG_64BIT
+# define STACK_RND_MASK (test_thread_flag(TIF_32BIT) ? 0x7ff : 0x3fffff)
+#else
+# define STACK_RND_MASK (0x7ff)
+#endif
+
 #endif
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 34899b5..22b89d1 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -511,6 +511,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 /* We provide our own get_unmapped_area to provide cache coherency */
 
 #define HAVE_ARCH_UNMAPPED_AREA
+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
 
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 9cbee39..75985b8 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -30,6 +30,8 @@
 #endif
 #define current_text_addr() ({ void *pc; current_ia(pc); pc; })
 
+#define HAVE_ARCH_PICK_MMAP_LAYOUT
+
 #define TASK_SIZE_OF(tsk)       ((tsk)->thread.task_size)
 #define TASK_SIZE	        TASK_SIZE_OF(current)
 #define TASK_UNMAPPED_BASE      (current->thread.map_base)
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 0d3a9d4..dd22137 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -23,6 +23,7 @@
  */
 
 #include <asm/uaccess.h>
+#include <asm/elf.h>
 #include <linux/file.h>
 #include <linux/fs.h>
 #include <linux/linkage.h>
@@ -32,19 +33,7 @@
 #include <linux/syscalls.h>
 #include <linux/utsname.h>
 #include <linux/personality.h>
-
-static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
-{
-	struct vm_unmapped_area_info info;
-
-	info.flags = 0;
-	info.length = len;
-	info.low_limit = PAGE_ALIGN(addr);
-	info.high_limit = TASK_SIZE;
-	info.align_mask = 0;
-	info.align_offset = 0;
-	return vm_unmapped_area(&info);
-}
+#include <linux/random.h>
 
 /*
  * We need to know the offset to use.  Old scheme was to look for
@@ -58,7 +47,7 @@ static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
  */
 static int get_offset(struct address_space *mapping)
 {
-	return (unsigned long) mapping >> 8;
+	return ((unsigned long) mapping >> 8) & ((SHMLBA-1) >> PAGE_SHIFT);
 }
 
 static unsigned long shared_align_offset(struct file *filp, unsigned long pgoff)
@@ -68,42 +57,215 @@ static unsigned long shared_align_offset(struct file *filp, unsigned long pgoff)
 	return (get_offset(mapping) + pgoff) << PAGE_SHIFT;
 }
 
-static unsigned long get_shared_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff)
+static inline unsigned long COLOR_ALIGN(unsigned long addr,
+					 struct file *filp, unsigned long pgoff)
+{
+	unsigned long base = (addr+SHMLBA-1)&~(SHMLBA-1);
+	unsigned long off = (shared_align_offset(filp, pgoff) << PAGE_SHIFT)
+			     & (SHMLBA-1);
+
+	return base + off;
+}
+
+/*
+ * Top of mmap area (just below the process stack).
+ */
+
+static unsigned long mmap_upper_limit(void)
+{
+	unsigned long stack_base;
+
+	/* Limit stack size to 1GB - see setup_arg_pages() in fs/exec.c */
+	stack_base = rlimit_max(RLIMIT_STACK);
+	if (stack_base > (1 << 30))
+		stack_base = 1 << 30;
+
+	return PAGE_ALIGN(STACK_TOP - stack_base);
+}
+
+
+unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
+		unsigned long len, unsigned long pgoff, unsigned long flags)
 {
+	struct mm_struct *mm = current->mm;
+	struct vm_area_struct *vma;
+	unsigned long task_size = TASK_SIZE;
+	int do_color_align;
 	struct vm_unmapped_area_info info;
 
+	if (len > task_size)
+		return -ENOMEM;
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - shared_align_offset(filp, pgoff)) & (SHMLBA - 1))
+			return -EINVAL;
+		return addr;
+	}
+
+	do_color_align = 0;
+	if (filp || (flags & MAP_SHARED))
+		do_color_align = 1;
+
+	if (addr) {
+		if (do_color_align)
+			addr = COLOR_ALIGN(addr, filp, pgoff);
+		else
+			addr = PAGE_ALIGN(addr);
+
+		vma = find_vma(mm, addr);
+		if (task_size - len >= addr &&
+		    (!vma || addr + len <= vma->vm_start))
+			return addr;
+	}
+
 	info.flags = 0;
 	info.length = len;
-	info.low_limit = PAGE_ALIGN(addr);
-	info.high_limit = TASK_SIZE;
-	info.align_mask = PAGE_MASK & (SHMLBA - 1);
+	info.low_limit = mm->mmap_legacy_base;
+	info.high_limit = mmap_upper_limit();
+	info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = shared_align_offset(filp, pgoff);
-	return vm_unmapped_area(&info);
+	addr = vm_unmapped_area(&info);
+
+	return addr;
 }
 
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long
+arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+			  const unsigned long len, const unsigned long pgoff,
+			  const unsigned long flags)
 {
+	struct vm_area_struct *vma;
+	struct mm_struct *mm = current->mm;
+	unsigned long addr = addr0;
+	int do_color_align;
+	struct vm_unmapped_area_info info;
+
+	/* This should only ever run for 32-bit processes.  */
+	BUG_ON(!test_thread_flag(TIF_32BIT));
+
+	/* requested length too big for entire address space */
 	if (len > TASK_SIZE)
 		return -ENOMEM;
+
 	if (flags & MAP_FIXED) {
 		if ((flags & MAP_SHARED) &&
 		    (addr - shared_align_offset(filp, pgoff)) & (SHMLBA - 1))
 			return -EINVAL;
 		return addr;
 	}
-	if (!addr)
-		addr = TASK_UNMAPPED_BASE;
 
+	do_color_align = 0;
 	if (filp || (flags & MAP_SHARED))
-		addr = get_shared_area(filp, addr, len, pgoff);
-	else
-		addr = get_unshared_area(addr, len);
+		do_color_align = 1;
+
+	/* requesting a specific address */
+	if (addr) {
+		if (do_color_align)
+			addr = COLOR_ALIGN(addr, filp, pgoff);
+		else
+			addr = PAGE_ALIGN(addr);
+		vma = find_vma(mm, addr);
+		if (TASK_SIZE - len >= addr &&
+		    (!vma || addr + len <= vma->vm_start))
+			return addr;
+	}
 
-	return addr;
+	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
+	info.length = len;
+	info.low_limit = PAGE_SIZE;
+	info.high_limit = mm->mmap_base;
+	info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+	info.align_offset = shared_align_offset(filp, pgoff);
+	addr = vm_unmapped_area(&info);
+	if (!(addr & ~PAGE_MASK))
+		return addr;
+	VM_BUG_ON(addr != -ENOMEM);
+
+	/*
+	 * A failed mmap() very likely causes application failure,
+	 * so fall back to the bottom-up function here. This scenario
+	 * can happen with large stack limits and large mmap()
+	 * allocations.
+	 */
+	return arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
+}
+
+static int mmap_is_legacy(void)
+{
+	if (current->personality & ADDR_COMPAT_LAYOUT)
+		return 1;
+
+	/* parisc stack always grows up - so a unlimited stack should
+	 * not be an indicator to use the legacy memory layout. */
+	if (rlimit(RLIMIT_STACK) == RLIM_INFINITY)
+		return 1;
+
+	return sysctl_legacy_va_layout;
+}
+
+/*
+ * True if 32bit task
+ */
+static inline int mmap_is_32bit(void)
+{
+#ifndef CONFIG_64BIT
+	return 1;
+#endif
+#ifdef CONFIG_COMPAT
+	if (test_thread_flag(TIF_32BIT))
+		return 1;
+#endif
+	return 0;
 }
 
+static unsigned long mmap_rnd(void)
+{
+	unsigned long rnd = 0;
+
+	/*
+	*  8 bits of randomness in 32bit mmaps, 20 address space bits
+	* 28 bits of randomness in 64bit mmaps, 40 address space bits
+	*/
+	if (current->flags & PF_RANDOMIZE) {
+		if (mmap_is_32bit())
+			rnd = get_random_int() % (1<<8);
+		else
+			rnd = get_random_int() % (1<<28);
+	}
+	return rnd << PAGE_SHIFT;
+}
+
+static unsigned long mmap_legacy_base(void)
+{
+	return TASK_UNMAPPED_BASE + mmap_rnd();
+}
+
+/*
+ * Flexible mmap layout support
+ * http://lwn.net/Articles/91829
+ * echo 0/1 /proc/sys/vm/legacy_va_layout
+ *
+ */
+
+
+/*
+ * This function, called very early during the creation of a new
+ * process VM image, sets up which VM layout function to use:
+ */
+void arch_pick_mmap_layout(struct mm_struct *mm)
+{
+	mm->mmap_legacy_base = mmap_legacy_base();
+	mm->mmap_base = mmap_upper_limit();
+
+	if (mmap_is_legacy()) {
+		mm->mmap_base = mm->mmap_legacy_base;
+		mm->get_unmapped_area = arch_get_unmapped_area;
+	} else {
+		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+	}
+}
+
+
 asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
 	unsigned long prot, unsigned long flags, unsigned long fd,
 	unsigned long pgoff)
--
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From - Thu Nov 08 21:09:58 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc updates for v3.13
Date: Tue, 3 Dec 2013 23:51:35 +0100
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi Linus,

please pull the latest parisc fixes from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.13

The major changes are:
- a fix for the mmap(MAP_FIXED|MAP_SHARED) syscall to the same address which
  was already given in a previous call (fixes locale-gen on debian)
- change the memory layout of the kernel to avoid the need for the -mlong-calls
  compiler option (depends on commit 5ecbe3c - kernel/extable: fix
  address-checks for core_kernel and init areas)
- defconfig updates, e.g. use the SIL680 driver instead of the SIIMAGE driver
- add more parisc machine names to the machine database

Thanks,
Helge

----------------------------------------------------------------
Chen Gang (1):
      parisc: remove empty SERIAL_PORT_DFNS in serial.h

Helge Deller (6):
      parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
      parisc: add some more machine names to hardware database
      parisc: use kernel_text_address() in unwind functions
      parisc: fix kernel memory layout in vmlinux.ld.S
      parisc: remove CONFIG_MLONGCALLS=y from defconfigs
      parisc: update 64bit defconfigs and use SIL680 instead of SIIMAGE driver

 arch/parisc/configs/c3000_defconfig         |   2 +-
 arch/parisc/configs/c8000_defconfig         |  36 +-------
 arch/parisc/configs/generic-64bit_defconfig |  39 +-------
 arch/parisc/include/asm/serial.h            |   2 -
 arch/parisc/kernel/hardware.c               |   7 +-
 arch/parisc/kernel/head.S                   |   6 +-
 arch/parisc/kernel/sys_parisc.c             |  25 +++--
 arch/parisc/kernel/unwind.c                 |   9 +-
 arch/parisc/kernel/vmlinux.lds.S            | 138 ++++++++++++----------------
 arch/parisc/mm/init.c                       |  19 +++-
 10 files changed, 110 insertions(+), 173 deletions(-)
--
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Cc: Andrew Morton <akpm@linux-foundation.org>, Tony Luck <tony.luck@intel.com>, 
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Xref: news.gmane.org gmane.linux.kernel.mm:109994 gmane.linux.ports.arm.kernel:284749 gmane.linux.ports.ia64:23489 gmane.linux.ports.parisc:5535 gmane.linux.kernel:1606549
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On Tue, 3 Dec 2013, Mel Gorman wrote:

> Commit 4b59e6c4 (mm, show_mem: suppress page counts in non-blockable
> contexts) introduced SHOW_MEM_FILTER_PAGE_COUNT to suppress PFN walks
> on large memory machines. Commit c78e9363 (mm: do not walk all of system
> memory during show_mem) avoided a PFN walk in the generic show_mem helper
> which removes the requirement for SHOW_MEM_FILTER_PAGE_COUNT in that case.
> 
> This patch removes PFN walkers from the arch-specific implementations that
> report on a per-node or per-zone granularity. ARM and unicore32 still do
> a PFN walk as they report memory usage on each bank which is a much finer
> granularity where the debugging information may still be of use. As the
> remaining arches doing PFN walks have relatively small amounts of memory,
> this patch simply removes SHOW_MEM_FILTER_PAGE_COUNT.
> 
> Signed-off-by: Mel Gorman <mgorman@suse.de>

Acked-by: David Rientjes <rientjes@google.com>

Thanks!

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH] parisc: fix cache flushing in kmap/kunmap API
 implementation for aio
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On Sun, 2013-12-01 at 22:18 +0100, Helge Deller wrote:
> This is now the next try to fix the aio bug in our kmap/kunmap
> implementation. It's basically stuff from 

I thought the implementation required us to move to coherency management
in the kmap API?, in which case ...

[...]
> -void kunmap_parisc(void *addr);
> -
>  static inline void *kmap(struct page *page)
>  {
>  	might_sleep();
> +	/* Flush dcache page on CPUs that require coherency. */
> +	if (parisc_requires_coherency())
> +		flush_dcache_page(page);
>  	return page_address(page);
>  }

We have to call flush_dcache_page() unconditionally here.  It's the API
that coheres all the user space mappings.  It has to be called somehow
before the kernel begins operating on the mapped address.

>  static inline void kunmap(struct page *page)
>  {
> -	kunmap_parisc(page_address(page));
> +	/* Always flush kernel dcache, even if CPU doesn't require conherency.
> +	 * Needed on CPUs < PA8800/PA8900 for AIO support. */
> +	flush_kernel_dcache_page_addr(page_address(page));
>  }
>  
>  static inline void *kmap_atomic(struct page *page)
>  {
>  	pagefault_disable();
> +	/* Flush dcache page on CPUs that require coherency. */
> +	if (parisc_requires_coherency())
> +		flush_dcache_page(page);
>  	return page_address(page);
>  }

And unconditionally here too.

And if we do that, I don't see that we need special code for the
pa88/8900 any more.

James


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From - Thu Nov 08 21:09:58 2018
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Subject: Re: [PATCH] parisc: fix cache flushing in kmap/kunmap API implementation for aio
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On 3-Dec-13, at 7:08 PM, James Bottomley wrote:

> On Sun, 2013-12-01 at 22:18 +0100, Helge Deller wrote:
>> This is now the next try to fix the aio bug in our kmap/kunmap
>> implementation. It's basically stuff from
>
> I thought the implementation required us to move to coherency  
> management
> in the kmap API?, in which case ...

This is what I've been saying to Helge.

We don't fully understand why we need to flush unconditionally to fix  
the aio bug
in kunmap.  I can see it for coherency and when different non coherent  
caches are
involved (e.g., I & D).  Could this be SMP related?

I think if we understand the kunmap case, we will also understand the  
kmap case.
At the moment, the fix is just based on testing.

Dave
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John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:09:58 2018
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From: Yijing Wang <wangyijing@huawei.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.pci,gmane.linux.ports.parisc
Subject: [PATCH 5/9] parisc/pci: Repalce local inline function with PCI standard marco
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	"Hanjun Guo" <guohanjun@huawei.com>
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Repalce local inline function is_pci_dev() with PCI standard marco
dev_is_pci().

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
---
 arch/parisc/kernel/drivers.c |   22 +++++-----------------
 1 files changed, 5 insertions(+), 17 deletions(-)

diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 14285ca..dba508f 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -282,18 +282,6 @@ find_pa_parent_type(const struct parisc_device *padev, int type)
 	return NULL;
 }
 
-#ifdef CONFIG_PCI
-static inline int is_pci_dev(struct device *dev)
-{
-	return dev->bus == &pci_bus_type;
-}
-#else
-static inline int is_pci_dev(struct device *dev)
-{
-	return 0;
-}
-#endif
-
 /*
  * get_node_path fills in @path with the firmware path to the device.
  * Note that if @node is a parisc device, we don't fill in the 'mod' field.
@@ -306,7 +294,7 @@ static void get_node_path(struct device *dev, struct hardware_path *path)
 	int i = 5;
 	memset(&path->bc, -1, 6);
 
-	if (is_pci_dev(dev)) {
+	if (dev_is_pci(dev)) {
 		unsigned int devfn = to_pci_dev(dev)->devfn;
 		path->mod = PCI_FUNC(devfn);
 		path->bc[i--] = PCI_SLOT(devfn);
@@ -314,7 +302,7 @@ static void get_node_path(struct device *dev, struct hardware_path *path)
 	}
 
 	while (dev != &root) {
-		if (is_pci_dev(dev)) {
+		if (dev_is_pci(dev)) {
 			unsigned int devfn = to_pci_dev(dev)->devfn;
 			path->bc[i--] = PCI_SLOT(devfn) | (PCI_FUNC(devfn)<< 5);
 		} else if (dev->bus == &parisc_bus_type) {
@@ -695,7 +683,7 @@ static int check_parent(struct device * dev, void * data)
 		if (dev->bus == &parisc_bus_type) {
 			if (match_parisc_device(dev, d->index, d->modpath))
 				d->dev = dev;
-		} else if (is_pci_dev(dev)) {
+		} else if (dev_is_pci(dev)) {
 			if (match_pci_device(dev, d->index, d->modpath))
 				d->dev = dev;
 		} else if (dev->bus == NULL) {
@@ -753,7 +741,7 @@ struct device *hwpath_to_device(struct hardware_path *modpath)
 		if (!parent)
 			return NULL;
 	}
-	if (is_pci_dev(parent)) /* pci devices already parse MOD */
+	if (dev_is_pci(parent)) /* pci devices already parse MOD */
 		return parent;
 	else
 		return parse_tree_node(parent, 6, modpath);
@@ -772,7 +760,7 @@ void device_to_hwpath(struct device *dev, struct hardware_path *path)
 		padev = to_parisc_device(dev);
 		get_node_path(dev->parent, path);
 		path->mod = padev->hw_path;
-	} else if (is_pci_dev(dev)) {
+	} else if (dev_is_pci(dev)) {
 		get_node_path(dev, path);
 	}
 }
-- 
1.7.1



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Subject: Re: [PATCH 1/9] PCI: Use dev_is_pci() to check whether it is pci
 device
Date: Mon, 9 Dec 2013 17:01:54 -0700
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To: Yijing Wang <wangyijing@huawei.com>
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[+cc arch lists]

On Thu, Dec 05, 2013 at 07:52:53PM +0800, Yijing Wang wrote:
> Use dev_is_pci() instead of directly compare
> pci_bus_type to check whether it is pci device.
> 
> Signed-off-by: Yijing Wang <wangyijing@huawei.com>

I applied all these to my pci/yijing-dev_is_pci branch for v3.14, thanks!

Browse them here: http://git.kernel.org/cgit/linux/kernel/git/helgaas/pci.git/log/?h=pci/yijing-dev_is_pci

This should be no functional change.

 arch/alpha/kernel/pci_iommu.c        |    2 +-
 arch/arm/common/it8152.c             |    4 ++--
 arch/arm/mach-ixp4xx/common-pci.c    |    6 +++---
 arch/ia64/hp/common/sba_iommu.c      |    2 +-
 arch/ia64/sn/pci/pci_dma.c           |   24 ++++++++++++------------
 arch/parisc/kernel/drivers.c         |   22 +++++-----------------
 arch/powerpc/sysdev/fsl_pci.c        |    2 +-
 arch/sparc/include/asm/dma-mapping.h |   10 ++++------
 arch/sparc/kernel/iommu.c            |    2 +-
 arch/sparc/kernel/ioport.c           |    4 +---
 arch/x86/kernel/acpi/boot.c          |    4 +---
 drivers/pci/pci-acpi.c               |    2 +-
 12 files changed, 33 insertions(+), 51 deletions(-)

Bjorn

> ---
>  drivers/pci/pci-acpi.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
> index 577074e..e0431f1 100644
> --- a/drivers/pci/pci-acpi.c
> +++ b/drivers/pci/pci-acpi.c
> @@ -358,7 +358,7 @@ static void pci_acpi_cleanup(struct device *dev)
>  
>  static bool pci_acpi_bus_match(struct device *dev)
>  {
> -	return dev->bus == &pci_bus_type;
> +	return dev_is_pci(dev);
>  }
>  
>  static struct acpi_bus_type acpi_pci_bus = {
> -- 
> 1.7.1
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-pci" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
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From - Thu Nov 08 21:09:58 2018
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From: Benjamin Herrenschmidt <benh@au1.ibm.com>
Newsgroups: gmane.linux.kernel.pci,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH 1/9] PCI: Use dev_is_pci() to check whether it is pci
 device
Date: Tue, 10 Dec 2013 14:59:33 +1100
Organization: IBM Australia
Lines: 67
Approved: news@gmane.org
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Cc: Yijing Wang <wangyijing@huawei.com>, linux-ia64@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-pci@vger.kernel.org,
	Hanjun Guo <guohanjun@huawei.com>,
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To: Bjorn Helgaas <bhelgaas@google.com>
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On Mon, 2013-12-09 at 17:01 -0700, Bjorn Helgaas wrote:
> [+cc arch lists]
> 
> On Thu, Dec 05, 2013 at 07:52:53PM +0800, Yijing Wang wrote:
> > Use dev_is_pci() instead of directly compare
> > pci_bus_type to check whether it is pci device.
> > 
> > Signed-off-by: Yijing Wang <wangyijing@huawei.com>
> 
> I applied all these to my pci/yijing-dev_is_pci branch for v3.14, thanks!
> 
> Browse them here: http://git.kernel.org/cgit/linux/kernel/git/helgaas/pci.git/log/?h=pci/yijing-dev_is_pci

Ah ok. I also have the powerpc one in powerpc -next, no biggie though

Cheers,
Ben.

> This should be no functional change.
> 
>  arch/alpha/kernel/pci_iommu.c        |    2 +-
>  arch/arm/common/it8152.c             |    4 ++--
>  arch/arm/mach-ixp4xx/common-pci.c    |    6 +++---
>  arch/ia64/hp/common/sba_iommu.c      |    2 +-
>  arch/ia64/sn/pci/pci_dma.c           |   24 ++++++++++++------------
>  arch/parisc/kernel/drivers.c         |   22 +++++-----------------
>  arch/powerpc/sysdev/fsl_pci.c        |    2 +-
>  arch/sparc/include/asm/dma-mapping.h |   10 ++++------
>  arch/sparc/kernel/iommu.c            |    2 +-
>  arch/sparc/kernel/ioport.c           |    4 +---
>  arch/x86/kernel/acpi/boot.c          |    4 +---
>  drivers/pci/pci-acpi.c               |    2 +-
>  12 files changed, 33 insertions(+), 51 deletions(-)
> 
> Bjorn
> 
> > ---
> >  drivers/pci/pci-acpi.c |    2 +-
> >  1 files changed, 1 insertions(+), 1 deletions(-)
> > 
> > diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
> > index 577074e..e0431f1 100644
> > --- a/drivers/pci/pci-acpi.c
> > +++ b/drivers/pci/pci-acpi.c
> > @@ -358,7 +358,7 @@ static void pci_acpi_cleanup(struct device *dev)
> >  
> >  static bool pci_acpi_bus_match(struct device *dev)
> >  {
> > -	return dev->bus == &pci_bus_type;
> > +	return dev_is_pci(dev);
> >  }
> >  
> >  static struct acpi_bus_type acpi_pci_bus = {
> > -- 
> > 1.7.1
> > 
> > 
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-pci" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@lists.ozlabs.org
> https://lists.ozlabs.org/listinfo/linuxppc-dev



From - Thu Nov 08 21:09:58 2018
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From: Yijing Wang <wangyijing@huawei.com>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 1/9] PCI: Use dev_is_pci() to check whether it is pci
 device
Date: Tue, 10 Dec 2013 15:38:16 +0800
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To: Bjorn Helgaas <bhelgaas@google.com>
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On 2013/12/10 8:01, Bjorn Helgaas wrote:
> [+cc arch lists]
> 
> On Thu, Dec 05, 2013 at 07:52:53PM +0800, Yijing Wang wrote:
>> Use dev_is_pci() instead of directly compare
>> pci_bus_type to check whether it is pci device.
>>
>> Signed-off-by: Yijing Wang <wangyijing@huawei.com>
> 
> I applied all these to my pci/yijing-dev_is_pci branch for v3.14, thanks!
> 
> Browse them here: http://git.kernel.org/cgit/linux/kernel/git/helgaas/pci.git/log/?h=pci/yijing-dev_is_pci

Thanks!
Bjorn, I sent the "[patch v2 4/9] sparc/PCI: Use dev_is_pci() to identify PCI devices" to
correct build error found by kbuild test, Because I have no sparc platform, I guess the build error was introduced
by I remove the CONFIG_PCI #ifdef in that patch. Now I keep the CONFIG_PCI code and that patch should be no functional change.


> 
> This should be no functional change.
> 
>  arch/alpha/kernel/pci_iommu.c        |    2 +-
>  arch/arm/common/it8152.c             |    4 ++--
>  arch/arm/mach-ixp4xx/common-pci.c    |    6 +++---
>  arch/ia64/hp/common/sba_iommu.c      |    2 +-
>  arch/ia64/sn/pci/pci_dma.c           |   24 ++++++++++++------------
>  arch/parisc/kernel/drivers.c         |   22 +++++-----------------
>  arch/powerpc/sysdev/fsl_pci.c        |    2 +-
>  arch/sparc/include/asm/dma-mapping.h |   10 ++++------
>  arch/sparc/kernel/iommu.c            |    2 +-
>  arch/sparc/kernel/ioport.c           |    4 +---
>  arch/x86/kernel/acpi/boot.c          |    4 +---
>  drivers/pci/pci-acpi.c               |    2 +-
>  12 files changed, 33 insertions(+), 51 deletions(-)
> 
> Bjorn
> 
>> ---
>>  drivers/pci/pci-acpi.c |    2 +-
>>  1 files changed, 1 insertions(+), 1 deletions(-)
>>
>> diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
>> index 577074e..e0431f1 100644
>> --- a/drivers/pci/pci-acpi.c
>> +++ b/drivers/pci/pci-acpi.c
>> @@ -358,7 +358,7 @@ static void pci_acpi_cleanup(struct device *dev)
>>  
>>  static bool pci_acpi_bus_match(struct device *dev)
>>  {
>> -	return dev->bus == &pci_bus_type;
>> +	return dev_is_pci(dev);
>>  }
>>  
>>  static struct acpi_bus_type acpi_pci_bus = {
>> -- 
>> 1.7.1
>>
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-pci" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> .
> 


-- 
Thanks!
Yijing

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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH 1/9] PCI: Use dev_is_pci() to check whether it is pci device
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References: <1386244373-35796-1-git-send-email-wangyijing@huawei.com>
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To: Benjamin Herrenschmidt <benh@au1.ibm.com>
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Xref: news.gmane.org gmane.linux.ports.ia64:23499 gmane.linux.ports.parisc:5543 gmane.linux.kernel.pci:27407 gmane.linux.kernel:1611536 gmane.linux.ports.alpha:2179 gmane.linux.ports.sparc:18498 gmane.linux.ports.ppc64.devel:98062 gmane.linux.ports.arm.kernel:286520
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On Mon, Dec 9, 2013 at 8:59 PM, Benjamin Herrenschmidt <benh@au1.ibm.com> wrote:
> On Mon, 2013-12-09 at 17:01 -0700, Bjorn Helgaas wrote:
>> [+cc arch lists]
>>
>> On Thu, Dec 05, 2013 at 07:52:53PM +0800, Yijing Wang wrote:
>> > Use dev_is_pci() instead of directly compare
>> > pci_bus_type to check whether it is pci device.
>> >
>> > Signed-off-by: Yijing Wang <wangyijing@huawei.com>
>>
>> I applied all these to my pci/yijing-dev_is_pci branch for v3.14, thanks!
>>
>> Browse them here: http://git.kernel.org/cgit/linux/kernel/git/helgaas/pci.git/log/?h=pci/yijing-dev_is_pci
>
> Ah ok. I also have the powerpc one in powerpc -next, no biggie though

I'll drop the powerpc one.
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From: Levente Kurusa <levex@linux.com>
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Subject: [PATCH 17/38] parisc: kernel: add missing put_device call
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This is required so that we give up the last reference to the device.

Signed-off-by: Levente Kurusa <levex@linux.com>
---
 arch/parisc/kernel/drivers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 14285ca..b97cc05 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -428,7 +428,7 @@ struct parisc_device * create_tree_node(char id, struct device *parent)
 	dev->dev.dma_mask = &dev->dma_mask;
 	dev->dev.coherent_dma_mask = dev->dma_mask;
 	if (device_register(&dev->dev)) {
-		kfree(dev);
+		put_device(&dev->dev);
 		return NULL;
 	}
 
-- 
1.8.3.1


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On Thu, 2013-12-19 at 16:03 +0100, Levente Kurusa wrote:
> This is required so that we give up the last reference to the device.

No, it's not.  And the subject is misleading at best, since this isn't
any form of problem in the code.

If the add fails, the device isn't visible in sysfs and no references
have been handed out.  We're perfectly entitled to follow the common
pattern of simply destroying it at this point rather than going through
the nascent refcounting.

James



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Convert to the use of this_cpu_ptr().

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Christoph Lameter <cl@linux.com>

Index: linux/arch/parisc/lib/memcpy.c
===================================================================
--- linux.orig/arch/parisc/lib/memcpy.c	2013-12-02 16:07:49.844632157 -0600
+++ linux/arch/parisc/lib/memcpy.c	2013-12-02 16:07:49.844632157 -0600
@@ -470,7 +470,7 @@ static unsigned long pa_memcpy(void *dst
 		return 0;
 
 	/* if a load or store fault occured we can get the faulty addr */
-	d = &__get_cpu_var(exception_data);
+	d = this_cpu_ptr(&exception_data);
 	fault_addr = d->fault_addr;
 
 	/* error in load or store? */
Index: linux/arch/parisc/mm/fault.c
===================================================================
--- linux.orig/arch/parisc/mm/fault.c	2013-12-02 16:07:49.844632157 -0600
+++ linux/arch/parisc/mm/fault.c	2013-12-02 16:07:49.844632157 -0600
@@ -151,7 +151,7 @@ int fixup_exception(struct pt_regs *regs
 	fix = search_exception_tables(regs->iaoq[0]);
 	if (fix) {
 		struct exception_data *d;
-		d = &__get_cpu_var(exception_data);
+		d = this_cpu_ptr(&exception_data);
 		d->fault_ip = regs->iaoq[0];
 		d->fault_space = regs->isr;
 		d->fault_addr = regs->ior;

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From: Aaro Koskinen <aaro.koskinen@iki.fi>
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Subject: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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Hi,

This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:

$ localedef -c -i en_US -f UTF-8 en_US.UTF-8
cannot map archive header: Invalid argument

strace looks like this:

mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42f34000
mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument)

With the patch reverted, it works:

mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42d74000
mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = 0x43000000

BTW, note that for GLIBC 2.18 some changes were done regarding this:
https://sourceware.org/bugzilla/show_bug.cgi?id=10283

A.
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From - Thu Nov 08 21:09:59 2018
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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On 12/19/2013 2:17 PM, Aaro Koskinen wrote:
> Hi,
>
> This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
> mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
>
> $ localedef -c -i en_US -f UTF-8 en_US.UTF-8
> cannot map archive header: Invalid argument
>
> strace looks like this:
>
> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42f34000
> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument)
>
> With the patch reverted, it works:
>
> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42d74000
> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = 0x43000000
>
> BTW, note that for GLIBC 2.18 some changes were done regarding this:
> https://sourceware.org/bugzilla/show_bug.cgi?id=10283
Are you sure the glibc changes are correct?  PARISC addresses are not 
strictly aligned to SHMLBA.
There's also a page offset and "random" offset derived from the kernel 
address of the mapping struct.

Helge is still looking at this to try and improve the allocation density 
of small maps as we run out of
memory far too quickly.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:09:59 2018
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org
To: John David Anglin <dave.anglin@bell.net>
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Hi,

On Thu, Dec 19, 2013 at 02:44:40PM -0500, John David Anglin wrote:
> On 12/19/2013 2:17 PM, Aaro Koskinen wrote:
> >This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
> >mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
> >
> >$ localedef -c -i en_US -f UTF-8 en_US.UTF-8
> >cannot map archive header: Invalid argument
> >
> >strace looks like this:
> >
> >mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42f34000
> >mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument)
> >
> >With the patch reverted, it works:
> >
> >mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42d74000
> >mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = 0x43000000
> >
> >BTW, note that for GLIBC 2.18 some changes were done regarding this:
> >https://sourceware.org/bugzilla/show_bug.cgi?id=10283
> Are you sure the glibc changes are correct?  PARISC addresses are
> not strictly aligned to SHMLBA.

No, I'm not sure. I just wanted to report this issue since I see it on
my box and there is a recent kernel change that seems to be somewhat
related. Of course if the glibc is broken we should try to fix that.

A.
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From - Thu Nov 08 21:10:00 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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Hello Aaro,

On 12/19/2013 08:17 PM, Aaro Koskinen wrote:
> This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
> mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
> 
> $ localedef -c -i en_US -f UTF-8 en_US.UTF-8
> cannot map archive header: Invalid argument
> 
> strace looks like this:
> 
> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42f34000
> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument)
> 
> With the patch reverted, it works:
> 
> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42d74000
> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = 0x43000000

It maybe doesn't fail now, but it's not correctly mapped either.
So, even if you don't get the EINVAL error, it might not work properly.
The patch I send just corrected this wrong behaviour.

> BTW, note that for GLIBC 2.18 some changes were done regarding this:
> https://sourceware.org/bugzilla/show_bug.cgi?id=10283

Mike Frysinger already mentioned something like that some time ago:
http://www.spinics.net/lists/linux-parisc/msg05204.html

I think we need to take a look at the glibc again...

Helge
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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Hi,

On Thu, Dec 19, 2013 at 09:28:41PM +0100, Helge Deller wrote:
> On 12/19/2013 08:17 PM, Aaro Koskinen wrote:
> > This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
> > mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
> > 
> > $ localedef -c -i en_US -f UTF-8 en_US.UTF-8
> > cannot map archive header: Invalid argument
> > 
> > strace looks like this:
> > 
> > mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42f34000
> > mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument)
> > 
> > With the patch reverted, it works:
> > 
> > mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42d74000
> > mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = 0x43000000
> 
> It maybe doesn't fail now, but it's not correctly mapped either.
> So, even if you don't get the EINVAL error, it might not work properly.
> The patch I send just corrected this wrong behaviour.

The generated locale-archive seemed to be correct (md5sum matched my other
machines). Anyway, I'll avoid running localedef on parisc for time being.

Thanks for info,

A.
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From: Mike Frysinger <vapier@gentoo.org>
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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On Thursday 19 December 2013 14:44:40 John David Anglin wrote:
> On 12/19/2013 2:17 PM, Aaro Koskinen wrote:
> > This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
> > mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
> >=20
> > $ localedef -c -i en_US -f UTF-8 en_US.UTF-8
> > cannot map archive header: Invalid argument
> >=20
> > strace looks like this:
> >=20
> > mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) =3D 0x42f34000
> > mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, =
3,
> > 0) =3D -1 EINVAL (Invalid argument)
> >=20
> > With the patch reverted, it works:
> >=20
> > mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) =3D 0x42d74000
> > mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, =
3,
> > 0) =3D 0x43000000
> >=20
> > BTW, note that for GLIBC 2.18 some changes were done regarding this:
> > https://sourceware.org/bugzilla/show_bug.cgi?id=3D10283
>=20
> Are you sure the glibc changes are correct?  PARISC addresses are not
> strictly aligned to SHMLBA.
> There's also a page offset and "random" offset derived from the kernel
> address of the mapping struct.

the glibc changes were to use SHMLBA as the min alignment where as before i=
t=20
was using PAGE_SIZE.  the kernel shouldn't reject us because we manually=20
increased our alignment ... the mappings should still be overlapping, so it=
=20
shouldn't be an "out of mapping space" issue.

the first one gets a really large map (not fixed), and then the second does=
 a=20
small mapping inside of that first one.
=2Dmike

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From - Thu Nov 08 21:10:00 2018
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From: Dave Land <xmechanic@landcomp.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Fwd: Missing libaudit.so.0 workaround on hppa lifimage/debian-ports
 install
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Hiya Folks,

I posted this over at the Debian-hppa mailing list, and I thought it 
might be a good idea to post it here also, since it is rather relevant 
to the group. :)

Dave L.


-------- Original Message --------
Subject: Missing libaudit.so.0 workaround on hppa lifimage/debian-ports 
install
Resent-Date: Tue, 17 Dec 2013 06:31:49 +0000 (UTC)
Resent-From: debian-hppa@lists.debian.org
Date: Mon, 16 Dec 2013 23:31:30 -0700
From: Dave Land <xmechanic@landcomp.net>
To: debian-hppa@lists.debian.org

Hiya folks,

This may be a little lengthy, and an odd solution, but it worked to
debootstrap 2 different machines here in the last couple days.

The problem was.. when you would get to the point in the lifimage
install where you had to chroot your /mnt/destroot directory to run the
passwd utility to set the root password, it would error out with a
missing libaudit.so.0 library. I'll try to keep this as simple as
possible for those just trying this out on their hardware for the first
time, and once things get smoothed out at debian-ports.org, it most
likely won't be necessary anymore.

1. Get your latest lifimage and burn it to a CD, here:
http://ftp.parisc-linux.org/debian-ports/unstable-boot-image/lifimage

2. Follow the instructions at:
http://wiki.parisc-linux.org/Debian_Ports_Installation up to the point
where you have to chroot to /mnt/destroot to set your root password.

3. *Before* you chroot, use nano to edit your
/mnt/destroot/etc/apt/sources.list file to include the parisc-linux.org
repository (deb http://ftp.parisc-linux.org/debian-ports/debian unstable
main)

4. Now, chroot /mnt/destroot...

5. Since you're ch-rooted to the main file system, you can now run the
apt utilities to do what you need to, but before you do, you must get
the gpg keys for debian-ports.org before it will work; something like this..

6. gpg --recv-keys 1C466F272FF7A9F4 --keyserver
http://ftp.debian-ports.org/debian

7. gpg --export --armor 2FF7A9F4 | apt-key add -

8. Run apt-get update to refresh the package lists

9. Run apt-get upgrade (you'll get some unmet dependencies)

10. Run apt-get -f install (this fixes them)

11. Run apt-get update again

12. Run apt-get upgrade *again* (this pulls in the rest of the upgraded
packages from both sources.

13. Now... you should be able to set your root password successfully!

14. Type 'exit' to get out of the chroot.

15. Use nano to edit /mnt/destroot/etc/hostname to give your machine a name.

16. Follow through with the rest of the installation and get your latest
kernel for your architecture, palo, openssh-server, etc. Don't forget to
set your links in /mnt/destroot/boot/ as described in the instructions
and follow the palo setup to the letter. Reboot and your machine should
boot to a login prompt. Login as root, and you're off!

Sidenotes: I ran into an issue on both machines where the primary
network interface (usually eth0) wouldn't start on it's own and I had to
add the following to /etc/network/interfaces

allow-hotplug eth0

iface eth0 inet dhcp

Edit this to point to your primary network interface.
After that my network came up automatically at each boot/reboot.

Here's the current results of my labors over the last few days:

http://landcomp.net:882 (the newest one, just finished this evening)
http://landcomp.net:883 (the RP 2470 A500 server)
http://landcomp.net:884 (the J6750 workstation with our development
website and *current* buildd server)

Enjoy!

Dave L.

-- 
Dave Land
Land Computer Service  xmechanic@landcomp.net
ICQ: 676030523





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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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On 12/19/2013 4:19 PM, Mike Frysinger wrote:
> On Thursday 19 December 2013 14:44:40 John David Anglin wrote:
>> On 12/19/2013 2:17 PM, Aaro Koskinen wrote:
>>> This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
>>> mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
>>>
>>> $ localedef -c -i en_US -f UTF-8 en_US.UTF-8
>>> cannot map archive header: Invalid argument
>>>
>>> strace looks like this:
>>>
>>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42f34000
>>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3,
>>> 0) = -1 EINVAL (Invalid argument)
>>>
>>> With the patch reverted, it works:
>>>
>>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42d74000
>>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3,
>>> 0) = 0x43000000
>>>
>>> BTW, note that for GLIBC 2.18 some changes were done regarding this:
>>> https://sourceware.org/bugzilla/show_bug.cgi?id=10283
>> Are you sure the glibc changes are correct?  PARISC addresses are not
>> strictly aligned to SHMLBA.
>> There's also a page offset and "random" offset derived from the kernel
>> address of the mapping struct.
> the glibc changes were to use SHMLBA as the min alignment where as before it
> was using PAGE_SIZE.  the kernel shouldn't reject us because we manually
> increased our alignment ... the mappings should still be overlapping, so it
> shouldn't be an "out of mapping space" issue.
>
> the first one gets a really large map (not fixed), and then the second does a
> small mapping inside of that first one.
> -mike
The mmap check is here:

         if (flags & MAP_FIXED) {
                 if ((flags & MAP_SHARED) &&
                     (addr - shared_align_offset(filp, pgoff)) & (SHMLBA 
- 1))
                         return -EINVAL;
                 return addr;
         }

In the case at hand, the addr value passed is not equivalent to the value
returned on first mmap2 call.  So, the error is correct.  The 
application has to
preserve the "SHMLBA - 1" part of the address when selecting a new map 
address.

The error is EINVAL (i.e., bad address).

The old code wouldn't have returned an error but the second mapping 
would not
have been equivalent to the first.

My head spins regarding mappings inside mappings as it seems they may 
conflict.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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On Thursday 19 December 2013 17:38:37 John David Anglin wrote:
> On 12/19/2013 4:19 PM, Mike Frysinger wrote:
> > On Thursday 19 December 2013 14:44:40 John David Anglin wrote:
> >> On 12/19/2013 2:17 PM, Aaro Koskinen wrote:
> >>> This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
> >>> mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
> >>>=20
> >>> $ localedef -c -i en_US -f UTF-8 en_US.UTF-8
> >>> cannot map archive header: Invalid argument
> >>>=20
> >>> strace looks like this:
> >>>=20
> >>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) =3D 0x42f34000
> >>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED,
> >>> 3, 0) =3D -1 EINVAL (Invalid argument)
> >>>=20
> >>> With the patch reverted, it works:
> >>>=20
> >>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) =3D 0x42d74000
> >>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED,
> >>> 3, 0) =3D 0x43000000
> >>>=20
> >>> BTW, note that for GLIBC 2.18 some changes were done regarding this:
> >>> https://sourceware.org/bugzilla/show_bug.cgi?id=3D10283
> >>=20
> >> Are you sure the glibc changes are correct?  PARISC addresses are not
> >> strictly aligned to SHMLBA.
> >> There's also a page offset and "random" offset derived from the kernel
> >> address of the mapping struct.
> >=20
> > the glibc changes were to use SHMLBA as the min alignment where as befo=
re
> > it was using PAGE_SIZE.  the kernel shouldn't reject us because we
> > manually increased our alignment ... the mappings should still be
> > overlapping, so it shouldn't be an "out of mapping space" issue.
> >=20
> > the first one gets a really large map (not fixed), and then the second
> > does a small mapping inside of that first one.
>=20
> The mmap check is here:
>=20
>          if (flags & MAP_FIXED) {
>                  if ((flags & MAP_SHARED) &&
>                      (addr - shared_align_offset(filp, pgoff)) & (SHMLBA
> - 1))
>                          return -EINVAL;
>                  return addr;
>          }
>=20
> In the case at hand, the addr value passed is not equivalent to the value
> returned on first mmap2 call.  So, the error is correct.  The
> application has to
> preserve the "SHMLBA - 1" part of the address when selecting a new map
> address.
>=20
> The error is EINVAL (i.e., bad address).
>=20
> The old code wouldn't have returned an error but the second mapping
> would not
> have been equivalent to the first.
>=20
> My head spins regarding mappings inside mappings as it seems they may
> conflict.

we designed the new locale code to work on all systems (including fixing th=
e=20
behavior on older parisc64 kernels).  the assumption is that, if we want to=
 do=20
overlapping mappings, we need to use SHMLBA as the min alignment (since tha=
t's=20
what the define represents -- shared mapping alignments that the hardware i=
s=20
restricted by).  and that is what the new locale code is doing.  glibc defi=
nes=20
SHMLBA to 0x00400000 for parisc which is why 0x42d74000 turned into=20
0x43000000.

so either SHMLBA on parisc is wrong, or the new kernel code is wrong
=2Dmike

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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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Hi all,

On 12/20/2013 12:02 AM, Mike Frysinger wrote:
> On Thursday 19 December 2013 17:38:37 John David Anglin wrote:
>> On 12/19/2013 4:19 PM, Mike Frysinger wrote:
>>> On Thursday 19 December 2013 14:44:40 John David Anglin wrote:
>>>> On 12/19/2013 2:17 PM, Aaro Koskinen wrote:
>>>>> This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
>>>>> mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
>>>>>
>>>>> $ localedef -c -i en_US -f UTF-8 en_US.UTF-8
>>>>> cannot map archive header: Invalid argument
>>>>>
>>>>> strace looks like this:
>>>>>
>>>>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42f34000
>>>>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument)
>>>>>
>>>>> With the patch reverted, it works:
>>>>>
>>>>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42d74000
>>>>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = 0x43000000
>>>>>
>>>>> BTW, note that for GLIBC 2.18 some changes were done regarding this:
>>>>> https://sourceware.org/bugzilla/show_bug.cgi?id=10283
>>>>
>>>> Are you sure the glibc changes are correct?  PARISC addresses are not
>>>> strictly aligned to SHMLBA.
>>>> There's also a page offset and "random" offset derived from the kernel
>>>> address of the mapping struct.

Yes, that's the important part: The "random" offset stays constant for each file (mapping)!

>>> the glibc changes were to use SHMLBA as the min alignment where as before
>>> it was using PAGE_SIZE.  the kernel shouldn't reject us because we
>>> manually increased our alignment ... the mappings should still be
>>> overlapping, so it shouldn't be an "out of mapping space" issue.
>>>
>>> the first one gets a really large map (not fixed), and then the second
>>> does a small mapping inside of that first one.
>>
>> The mmap check is here:
>>
>>          if (flags & MAP_FIXED) {
>>                  if ((flags & MAP_SHARED) &&
>>                      (addr - shared_align_offset(filp, pgoff)) & (SHMLBA
>> - 1))
>>                          return -EINVAL;
>>                  return addr;
>>          }
>>
>> In the case at hand, the addr value passed is not equivalent to the value
>> returned on first mmap2 call.  So, the error is correct.  The
>> application has to
>> preserve the "SHMLBA - 1" part of the address when selecting a new map
>> address.
>>
>> The error is EINVAL (i.e., bad address).
>>
>> The old code wouldn't have returned an error but the second mapping
>> would not
>> have been equivalent to the first.
>>
>> My head spins regarding mappings inside mappings as it seems they may
>> conflict.
> 
> we designed the new locale code to work on all systems (including fixing the 
> behavior on older parisc64 kernels).  the assumption is that, if we want to do 
> overlapping mappings, 

What you understand with "overlapping mappings" ?
Overlapping mappings for parisc means, that the bytes inside the file needs to be mapped at
exactly the same addresses (modulo SHMLBA). 

With the example above, it means for parisc:
mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42f34000
- -> OK.

mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL
- -> This is strange.
Now you map the "beginning of the file" (offset=0) at *another* address (modulo SHMLBA) than what the
first mmap gave you. I agree that 0x43000000 is "inside" the memory range which you originally mapped
with the large mapping, but that's not relevant for parisc at all.

Instead this should work:
mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42f34000
some_address = x * SHMLBA; /* some multiple of SHMLBA, e.g. 0x43000000 */
file_offset = some_address - 0x42f34000;
mmap2(some_address, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, file_offset) = -1 EINVAL

Not sure if this is what you wanted.
Anyway, it looks like we need to change glibc for that...

> we need to use SHMLBA as the min alignment (since that's 
> what the define represents -- shared mapping alignments that the hardware is 
> restricted by).  and that is what the new locale code is doing.  glibc defines 
> SHMLBA to 0x00400000 for parisc which is why 0x42d74000 turned into 
> 0x43000000.

Sounds like logically correct behavior.

> so either SHMLBA on parisc is wrong, or the new kernel code is wrong

SHMLBA on parisc is correct.
The new kernel code is correct too, and the old one was definitively wrong.

You could try my current rewrite for the mmap functions which is in my "aio_mmap_fix" branch at
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
(http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/log/?h=aio_mmap_fix)
Pulling this branch on top of Linux head should work.
But I think it will not solve this problem.

Helge

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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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To: Mike Frysinger <vapier@gentoo.org>
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This is a resend of a comment previously sent (hit wrong button and it  
only went to Mike).

On 19-Dec-13, at 6:02 PM, Mike Frysinger wrote:

> On Thursday 19 December 2013 17:38:37 John David Anglin wrote:
>> On 12/19/2013 4:19 PM, Mike Frysinger wrote:
>>> On Thursday 19 December 2013 14:44:40 John David Anglin wrote:
>>>> On 12/19/2013 2:17 PM, Aaro Koskinen wrote:
>>>>> This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the  
>>>>> current
>>>>> mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
>>>>>
>>>>> $ localedef -c -i en_US -f UTF-8 en_US.UTF-8
>>>>> cannot map archive header: Invalid argument
>>>>>
>>>>> strace looks like this:
>>>>>
>>>>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42f34000
>>>>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED| 
>>>>> MAP_FIXED,
>>>>> 3, 0) = -1 EINVAL (Invalid argument)
>>>>>
>>>>> With the patch reverted, it works:
>>>>>
>>>>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42d74000
>>>>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED| 
>>>>> MAP_FIXED,
>>>>> 3, 0) = 0x43000000
>>>>>
>>>>> BTW, note that for GLIBC 2.18 some changes were done regarding  
>>>>> this:
>>>>> https://sourceware.org/bugzilla/show_bug.cgi?id=10283
>>>>
>>>> Are you sure the glibc changes are correct?  PARISC addresses are  
>>>> not
>>>> strictly aligned to SHMLBA.
>>>> There's also a page offset and "random" offset derived from the  
>>>> kernel
>>>> address of the mapping struct.
>>>
>>> the glibc changes were to use SHMLBA as the min alignment where as  
>>> before
>>> it was using PAGE_SIZE.  the kernel shouldn't reject us because we
>>> manually increased our alignment ... the mappings should still be
>>> overlapping, so it shouldn't be an "out of mapping space" issue.
>>>
>>> the first one gets a really large map (not fixed), and then the  
>>> second
>>> does a small mapping inside of that first one.
>>
>> The mmap check is here:
>>
>>         if (flags & MAP_FIXED) {
>>                 if ((flags & MAP_SHARED) &&
>>                     (addr - shared_align_offset(filp, pgoff)) &  
>> (SHMLBA
>> - 1))
>>                         return -EINVAL;
>>                 return addr;
>>         }
>>
>> In the case at hand, the addr value passed is not equivalent to the  
>> value
>> returned on first mmap2 call.  So, the error is correct.  The
>> application has to
>> preserve the "SHMLBA - 1" part of the address when selecting a new  
>> map
>> address.
>>
>> The error is EINVAL (i.e., bad address).
>>
>> The old code wouldn't have returned an error but the second mapping
>> would not
>> have been equivalent to the first.
>>
>> My head spins regarding mappings inside mappings as it seems they may
>> conflict.
>
> we designed the new locale code to work on all systems (including  
> fixing the
> behavior on older parisc64 kernels).  the assumption is that, if we  
> want to do
> overlapping mappings, we need to use SHMLBA as the min alignment  
> (since that's
> what the define represents -- shared mapping alignments that the  
> hardware is
> restricted by).  and that is what the new locale code is doing.   
> glibc defines
> SHMLBA to 0x00400000 for parisc which is why 0x42d74000 turned into
> 0x43000000.
>
> so either SHMLBA on parisc is wrong, or the new kernel code is wrong
> -mike


I think there is a misunderstanding regarding the parisc alignment  
requirements.

Mappings don't have have to start on a SHMLBA boundary and they never  
have.  Equivalent mappings
have to be offset by an integer number of SHMLBA blocks.  This allows  
more than one mapping
in a SHMLBA block depending on size.

Two address are equivalent if:

	(addr1 & (SHMLBA - 1)) == (addr2 & (SHMLBA - 1)

See flush_dcache_page() implementation.

The value for SHMLBA is certainly ok for all parisc machines.

The align mask for parisc shared areas is "PAGE_MASK & (SHMLBA - 1)".
The align offset is "(get_offset(mapping) + pgoff) << PAGE_SHIFT".

I believe glibc is not taking into account the offset resulting from  
get_offset(mapping).  Some
other archs use random offsets.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:10:00 2018
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Hiya folks!

Here's hoping everyone involved with the parisc-linux project has a 
Merry Christmas and a safe and Happy New Year.

Work is coming along nicely with our newly commissioned buildd server.
The hpviz is actually running multiple buildd's thanks to Dave Anglin 
and especially, Helge Deller and his hard work, and a custom-built 
kernel. It seems to be handling those and anything else we can throw at 
it, including our development website listed below. We still have one 
more machine for number-crunching and possibly package building, if my 
bandwidth will tolerate it. :-)

The RP-2470 (A500), is up and running on the 3.11-1-parisc64-smp kernel, 
and so far is functioning nicely as a file server and part-time web-app 
server at the moment.

We also have a J6000 workstation that will probably be more relegated 
for test work, etc. (My electric bill is already high!), so it will 
probably be offline more than on. If you'd like to check out what we're 
up to, and the current setup, take a look below. Suggestions are welcome!

Dave L.

http://www.landcomp.net:884/wp/
-- 
Dave Land
Land Computer Service  xmechanic@landcomp.net
ICQ: 676030523


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I've removed a reference to "most personal computers" being singleprocessor
machines in multiple arches' config help, and also brought the arch/arm spacing
for "singleprocessor" (vs. "single processor" used there originally) in line
with other arches that had that text.

The diff is included below, and cleanly applies and builds on my system. I have
not tested on other systems yet since a documentation fix shouldn't fail to
build inconsistently, but if that's no excuse, I'll be happy to test further
when I can.


diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/alpha/Kconfig linux/arch/alpha/Kconfig
--- linux-vanilla/arch/alpha/Kconfig	2013-12-22 18:03:11.881499508 +0000
+++ linux/arch/alpha/Kconfig	2013-12-22 17:58:31.448505765 +0000
@@ -539,8 +539,8 @@ config SMP
 	depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/arc/Kconfig linux/arch/arc/Kconfig
--- linux-vanilla/arch/arc/Kconfig	2013-12-22 18:03:11.933499507 +0000
+++ linux/arch/arc/Kconfig	2013-12-22 17:58:24.412505922 +0000
@@ -128,8 +128,8 @@ config SMP
 	default n
 	help
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 if SMP
 
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/arm/Kconfig linux/arch/arm/Kconfig
--- linux-vanilla/arch/arm/Kconfig	2013-12-22 18:03:11.956499506 +0000
+++ linux/arch/arm/Kconfig	2013-12-22 17:56:31.187508449 +0000
@@ -1435,14 +1435,14 @@ config SMP
 	depends on MMU || ARM_MPU
 	help
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
-	  you say Y here, the kernel will run on many, but not all, single
-	  processor machines. On a single processor machine, the kernel will
-	  run faster if you say N here.
+	  you say Y here, the kernel will run on many, but not all,
+	  singleprocessor machines. On a singleprocessor machine, the kernel
+	  will run faster if you say N here.
 
 	  See also <file:Documentation/x86/i386/IO-APIC.txt>,
 	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/m32r/Kconfig linux/arch/m32r/Kconfig
--- linux-vanilla/arch/m32r/Kconfig	2013-12-22 18:03:13.100499481 +0000
+++ linux/arch/m32r/Kconfig	2013-12-22 17:58:27.485505854 +0000
@@ -277,8 +277,8 @@ config SMP
 	bool "Symmetric multi-processing support"
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/mips/Kconfig linux/arch/mips/Kconfig
--- linux-vanilla/arch/mips/Kconfig	2013-12-22 18:03:13.290499477 +0000
+++ linux/arch/mips/Kconfig	2013-12-22 17:58:28.576505829 +0000
@@ -2128,8 +2128,8 @@ config SMP
 	depends on SYS_SUPPORTS_SMP
 	help
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/mn10300/Kconfig linux/arch/mn10300/Kconfig
--- linux-vanilla/arch/mn10300/Kconfig	2013-12-22 18:03:13.598499470 +0000
+++ linux/arch/mn10300/Kconfig	2013-12-22 17:58:26.460505877 +0000
@@ -184,8 +184,8 @@ config SMP
 	depends on MN10300_PROC_MN2WS0038 || MN10300_PROC_MN2WS0050
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/parisc/Kconfig linux/arch/parisc/Kconfig
--- linux-vanilla/arch/parisc/Kconfig	2013-12-22 18:03:13.682499468 +0000
+++ linux/arch/parisc/Kconfig	2013-12-22 17:57:38.097506956 +0000
@@ -229,8 +229,8 @@ config SMP
 	bool "Symmetric multi-processing support"
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/s390/Kconfig linux/arch/s390/Kconfig
--- linux-vanilla/arch/s390/Kconfig	2013-12-22 18:03:14.077499459 +0000
+++ linux/arch/s390/Kconfig	2013-12-22 17:58:29.631505806 +0000
@@ -332,8 +332,8 @@ config SMP
 	prompt "Symmetric multi-processing support"
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/sh/Kconfig linux/arch/sh/Kconfig
--- linux-vanilla/arch/sh/Kconfig	2013-12-22 18:03:14.188499457 +0000
+++ linux/arch/sh/Kconfig	2013-12-22 17:58:25.470505899 +0000
@@ -714,8 +714,8 @@ config SMP
 	depends on SYS_SUPPORTS_SMP
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/x86/Kconfig linux/arch/x86/Kconfig
--- linux-vanilla/arch/x86/Kconfig	2013-12-22 18:03:14.584499448 +0000
+++ linux/arch/x86/Kconfig	2013-12-22 17:58:30.711505782 +0000
@@ -278,8 +278,8 @@ config SMP
 	bool "Symmetric multi-processing support"
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
Signed-off-by: Robert Graffham <psquid@psquid.net>



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Hi,

On Fri, Dec 20, 2013 at 11:10:03PM +0100, Helge Deller wrote:
> You could try my current rewrite for the mmap functions which is in my "aio_mmap_fix" branch at
> git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
> (http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/log/?h=aio_mmap_fix)
> Pulling this branch on top of Linux head should work.
> But I think it will not solve this problem.

FWIW, I pulled this branch (aaa88432c03b) on top of 3.13-rc5 and the
system won't boot (HP C3700, 32-bit kernel). There's several stack trace
dumps during the boot; if you're interested I might be able to setup a
serial console to capture these.

A.
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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Am Donnerstag, 19. Dezember 2013, 21:17:51 schrieb Aaro Koskinen:
> Hi,
> 
> This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
> mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:

I also suspect this patch of causing trouble. My C8000 regularly submits to 
the libarchive dashboard (http://my.cdash.org/index.php?project=libarchive). 
Since I upgraded to 3.12.5 one test (libarchive_test_compat_mac) keeps 
failing. The day after compile errors and other problems started (just browse 
through the last 2 weeks and you will see it). Then I reverted that change and 
rebootet. The compat_mac test still fails, but the other failures are gone.

Greetings,

Eike
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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On 23-Dec-13, at 3:34 PM, Rolf Eike Beer wrote:

> Am Donnerstag, 19. Dezember 2013, 21:17:51 schrieb Aaro Koskinen:
>> Hi,
>>
>> This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the  
>> current
>> mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
>
> I also suspect this patch of causing trouble. My C8000 regularly  
> submits to
> the libarchive dashboard (http://my.cdash.org/index.php?project=libarchive 
> ).
> Since I upgraded to 3.12.5 one test (libarchive_test_compat_mac) keeps
> failing. The day after compile errors and other problems started  
> (just browse
> through the last 2 weeks and you will see it). Then I reverted that  
> change and
> rebootet. The compat_mac test still fails, but the other failures  
> are gone.

The libarchive_test_compat_mac test also appears to fail on x86.  It  
didn't fail
in my 3.1.2 build with kernel change.

I believe the GLIBC 2.18 change was wrong but I don't see why it would  
cause
compile errors.  I have compiled many packages with the kernel change  
and not
seen problems that I would attribute to it.

I did a test build of libarchive and saw following fails:

Failing tests:
   20: test_archive_read_close_twice_open_fd (3 failures)
   21: test_archive_read_close_twice_open_filename (3 failures)

This was with 3.1.2.  Looking at the logs, it didn't appear that these  
were mmap issues.

We need more data.

Dave
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Am Montag, 23. Dezember 2013, 21:39:54 schrieb John David Anglin:
> On 23-Dec-13, at 3:34 PM, Rolf Eike Beer wrote:
> > Am Donnerstag, 19. Dezember 2013, 21:17:51 schrieb Aaro Koskinen:
> >> Hi,
> >> 
> >> This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the
> >> current
> > 
> >> mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
> > I also suspect this patch of causing trouble. My C8000 regularly
> > submits to
> > the libarchive dashboard (http://my.cdash.org/index.php?project=libarchive
> > ).
> > Since I upgraded to 3.12.5 one test (libarchive_test_compat_mac) keeps
> > failing. The day after compile errors and other problems started
> > (just browse
> > through the last 2 weeks and you will see it). Then I reverted that
> > change and
> > rebootet. The compat_mac test still fails, but the other failures
> > are gone.
> 
> The libarchive_test_compat_mac test also appears to fail on x86.  It
> didn't fail
> in my 3.1.2 build with kernel change.
> 
> I believe the GLIBC 2.18 change was wrong but I don't see why it would
> cause compile errors.

I am on glibc 2.17, I only changed the kernel.

Eike
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It seems to me that while (for example) on SPARC, it's not possible to
create a non-coherent mapping with mmap(), after we've done an mmap,
we can then use remap_file_pages() to create a mapping that no longer
aliases in the D-cache.

I have only compile-tested this patch.  I don't have any SPARC hardware,
and my PA-RISC hardware hasn't been turned on in six years ... I noticed
this while wandering around looking at some other stuff.

diff --git a/mm/fremap.c b/mm/fremap.c
index 5bff081..01fc2e7 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -19,6 +19,7 @@
 
 #include <asm/mmu_context.h>
 #include <asm/cacheflush.h>
+#include <asm/shmparam.h>
 #include <asm/tlbflush.h>
 
 #include "internal.h"
@@ -177,6 +178,13 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
 	if (start < vma->vm_start || start + size > vma->vm_end)
 		goto out;
 
+#ifdef __ARCH_FORCE_SHMLBA
+	/* Is the mapping cache-coherent? */
+	if ((pgoff ^ linear_page_index(vma, start)) &
+	    ((SHMLBA-1) >> PAGE_SHIFT))
+		goto out;
+#endif
+
 	/* Must set VM_NONLINEAR before any pages are populated. */
 	if (!(vma->vm_flags & VM_NONLINEAR)) {
 		/*
--
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From: Matthew Wilcox <willy@linux.intel.com>
Date: Fri, 27 Dec 2013 13:00:18 -0500

> It seems to me that while (for example) on SPARC, it's not possible to
> create a non-coherent mapping with mmap(), after we've done an mmap,
> we can then use remap_file_pages() to create a mapping that no longer
> aliases in the D-cache.
> 
> I have only compile-tested this patch.  I don't have any SPARC hardware,
> and my PA-RISC hardware hasn't been turned on in six years ... I noticed
> this while wandering around looking at some other stuff.

I suppose this is needed, but only in the case where the mapping is
shared and writable, right?  I don't see you testing those conditions,
but with them I'd be OK with this change.

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On 27-Dec-13, at 1:00 PM, Matthew Wilcox wrote:

> +#ifdef __ARCH_FORCE_SHMLBA
> +	/* Is the mapping cache-coherent? */
> +	if ((pgoff ^ linear_page_index(vma, start)) &
> +	    ((SHMLBA-1) >> PAGE_SHIFT))
> +		goto out;
> +#endif


I think this will cause problems on PA-RISC.  The reason is we have an  
additional offset
for mappings.  See get_offset() in sys_parisc.c.

SHMLBA is 4 MB on PA-RISC.  If we limit ourselves to aligned mappings,  
we run out of
memory very quickly.  Even with our current implementation, we fail  
the perl locales test
with locales-all installed.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Fri, Dec 27, 2013 at 01:48:14PM -0500, David Miller wrote:
> From: Matthew Wilcox <willy@linux.intel.com>
> Date: Fri, 27 Dec 2013 13:00:18 -0500
> 
> > It seems to me that while (for example) on SPARC, it's not possible to
> > create a non-coherent mapping with mmap(), after we've done an mmap,
> > we can then use remap_file_pages() to create a mapping that no longer
> > aliases in the D-cache.
> > 
> > I have only compile-tested this patch.  I don't have any SPARC hardware,
> > and my PA-RISC hardware hasn't been turned on in six years ... I noticed
> > this while wandering around looking at some other stuff.
> 
> I suppose this is needed, but only in the case where the mapping is
> shared and writable, right?  I don't see you testing those conditions,
> but with them I'd be OK with this change.

VM_SHARED is checked a few lines above; too far to be visible in the
original context diff:

        if (!vma || !(vma->vm_flags & VM_SHARED))
                goto out;
 
        if (!vma->vm_ops || !vma->vm_ops->remap_pages)
                goto out;
 
        if (start < vma->vm_start || start + size > vma->vm_end)
                goto out;
 
+#ifdef __ARCH_FORCE_SHMLBA
+       /* Is the mapping cache-coherent? */
+       if ((pgoff ^ linear_page_index(vma, start)) &
+           ((SHMLBA-1) >> PAGE_SHIFT))
+               goto out;
+#endif

I don't understand why we need to check for writable here.  We don't
seem to check VM_WRITE in arch_get_unmapped_area(), so I don't see why
we should be checking it here.  Put it another way; if I mmap() a file
with PROT_READ only, should I be able to see stale data after another
thread has written to it?

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On Fri, Dec 27, 2013 at 02:13:16PM -0500, John David Anglin wrote:
> On 27-Dec-13, at 1:00 PM, Matthew Wilcox wrote:
> 
> >+#ifdef __ARCH_FORCE_SHMLBA
> >+	/* Is the mapping cache-coherent? */
> >+	if ((pgoff ^ linear_page_index(vma, start)) &
> >+	    ((SHMLBA-1) >> PAGE_SHIFT))
> >+		goto out;
> >+#endif
> 
> 
> I think this will cause problems on PA-RISC.  The reason is we have
> an additional offset
> for mappings.  See get_offset() in sys_parisc.c.

I don't think it will cause any additional problems.  The test merely
asks "Is the offset to put at this address cache-coherent with the offset
that was at this address when the mmap was established?"

> SHMLBA is 4 MB on PA-RISC.  If we limit ourselves to aligned
> mappings, we run out of
> memory very quickly.  Even with our current implementation, we fail
> the perl locales test
> with locales-all installed.

I know the large SHMLBA is problematic for PA-RISC, but I don't think
there's a lot of code out there using remap_file_pages().  code.google.com
found almost nothing, and a regular google search found only a couple
of little toys.

Have you considered measuring SHMLBA on different CPU models and
reducing it at boot time?  I know that 4MB is the architectural guarantee
(actually, I seem to remember that 16MB was the architectural guarantee,
but jsm found some CPU architects who said it would enver exceed 4MB).
I bet some CPUs have considerably lower cache coherency limits.
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On 27-Dec-13, at 2:33 PM, Matthew Wilcox wrote:

> Have you considered measuring SHMLBA on different CPU models and
> reducing it at boot time?  I know that 4MB is the architectural  
> guarantee
> (actually, I seem to remember that 16MB was the architectural  
> guarantee,
> but jsm found some CPU architects who said it would enver exceed 4MB).
> I bet some CPUs have considerably lower cache coherency limits.


It's worth looking at.  The value is supposed to be returned by the  
PDC_CACHE PDC
call but I know my rp3440 returns a value of 0 indicating that the  
aliasing boundary
is unknown and may be greater than 16MB.

Dave
--
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On 27-Dec-13, at 2:47 PM, John David Anglin wrote:

> It's worth looking at.  The value is supposed to be returned by the  
> PDC_CACHE PDC
> call but I know my rp3440 returns a value of 0 indicating that the  
> aliasing boundary
> is unknown and may be greater than 16MB.

c3750 data cache has an aliasing boundary of 4 MB, so I think we are  
stuck with large
SHMLBA.

Dave
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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Cc: Mike Frysinger <vapier@gentoo.org>,
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To: Aaro Koskinen <aaro.koskinen@iki.fi>
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Hi Aaro,

On 12/23/2013 09:26 PM, Aaro Koskinen wrote:
> On Fri, Dec 20, 2013 at 11:10:03PM +0100, Helge Deller wrote:
>> You could try my current rewrite for the mmap functions which is in my "aio_mmap_fix" branch at
>> git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
>> (http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/log/?h=aio_mmap_fix)
>> Pulling this branch on top of Linux head should work.
>> But I think it will not solve this problem.
> 
> FWIW, I pulled this branch (aaa88432c03b) on top of 3.13-rc5 and the
> system won't boot (HP C3700, 32-bit kernel). There's several stack trace
> dumps during the boot; if you're interested I might be able to setup a
> serial console to capture these.

Yes, the code hit a BUG_ON when running with 32bit kernel.
I just committed a trivial patch to the same tree, and now it works.

Helge 
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Hi,

On Sun, Dec 29, 2013 at 09:50:56PM +0100, Helge Deller wrote:
> On 12/23/2013 09:26 PM, Aaro Koskinen wrote:
> > On Fri, Dec 20, 2013 at 11:10:03PM +0100, Helge Deller wrote:
> >> You could try my current rewrite for the mmap functions which is in my "aio_mmap_fix" branch at
> >> git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
> >> (http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/log/?h=aio_mmap_fix)
> >> Pulling this branch on top of Linux head should work.
> >> But I think it will not solve this problem.
> > 
> > FWIW, I pulled this branch (aaa88432c03b) on top of 3.13-rc5 and the
> > system won't boot (HP C3700, 32-bit kernel). There's several stack trace
> > dumps during the boot; if you're interested I might be able to setup a
> > serial console to capture these.
> 
> Yes, the code hit a BUG_ON when running with 32bit kernel.
> I just committed a trivial patch to the same tree, and now it works.

Yes, it works now, thanks. localedef still fails, but I guess that was
expected based on what you said:

mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0xd83ee000
mmap2(0xd8400000, 103860, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument)

A.
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From - Thu Nov 08 21:10:01 2018
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From - Thu Nov 08 21:10:01 2018
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From: Dave Land <xmechanic@landcomp.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Possibility that /dev is not being properly populated by udev?
Date: Mon, 30 Dec 2013 22:08:52 -0700
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Hiya folks,

This is more of request for the collective minds to get together and 
discuss a possible fix, rather than a direct question. I own 2 of the 
machines that represent 3 of the current buildd servers for the hppa 
unstable port. Between Helge Deller, Dave Anglin, and myself, we're 
attempting to repopulate the repos at debian.ports with fresh packages, 
and for the most part it's been going pretty well. You can see our 
progress here: http://unstable.buildd.net/index-hppa.html Helge has 
developed a couple of experimental kernels to alleviate some of the 
buildd issues, etc. but we are still plagued with udev mis-interpreting 
device ID's when populating /dev.

As a result, it becomes a real issue when external drives or other 
devices are attached to the host. After our latest crash with 
rio.landcomp.net last night, (hardware related this time) assisted by a 
possible buildd error, I opened the machine up (RP2470 A500), and 
removed a failing Symbios SCSI card and replaced it with another. In the 
past, I've had several issues with this card detecting the external 
drive array (HP 2110), and usually I had to ID the drives in fdisk by 
LABEL in order for /etc/fstab to mount them in the proper locations.

Also there was the issue of the Symbios card repeatedly resetting the 
SCSI bus at startup to the point where fsck.ext3 would finally die with 
Signal 8, when it couldn't find the drives to check. When the card 
finally got around to detecting the drives, the OS was practically fully 
loaded and I would have to manually mount them. With the number of 
re-boots we have to do with hung kernels, unrecoverable buildd errors, 
etc. this turned in a real pain.

I then hooked the external drive array to the Ultra2 LVD/SE SCSI port on 
the 'rio' machine itself, and lo and behold, the internal SCSI BIOS 
found them immediately. Everything was fine until we determined that the 
drive order as listed in fdisk-l and blkid wasn't even close to being 
correct, even though the machine somehow booted from the correct primary 
partition on what would normally be /dev/sda3 since it was referred to 
by LABEL, as is, the drive with the /home partition, which would 
normally be /dev/sdb1. Instead they show up in fdisk-l and blkid as 
/dev/sde3 and /dev/sdd1. In reality, /dev/sdc,sdd,sde, and sdf are the 
four drives in the external array. I set them up with LABEL ID's also, 
except for the swap partitions which I have ID'd by UUID.

I've currently disconnected the externals on both rio.landcomp.net (the 
A500) and hpviz.landcomp.net (the J6750), as both were exhibiting the 
same behavior, regardless of which kernel we were using (the stock 
vmlinux-3.11-1-parisc64-smp or Helge's custom kernel with the buildd 
patches).

Here's the relevant info for the Visualize J6750 'hpviz' in it's current 
state:
Kernel Ver.: *3.11-2-parisc64-smp*
GCC Ver.: *gcc-4.8.2-10*
No remote management card
Access: SSH, local graphics console --> (thanks to Helge's parisc64-smp 
kernel patches, the FXe graphics card is now stable in STI console mode 
(color even!) on 64 bit SMP with >4GB of RAM)
CPU(s): 2x 875mhz. PA-8700
RAM: 7162 Mb.
PCI Devices: LSI Logic dual Port LVD/SE SCSI, HP FXe graphics card

...and the current relevant info for the RP2470 (A500) 'rio'

Kernel Ver.: *3.11-1-parisc64-smp*
GCC Ver.: *gcc-4.8.2-10*
Remote managemment: GSP built-in service processor
Access: GSP, serial line (ttyS0)
CPU(s): 2x 750 mhz. PA-8700
RAM: 8162 Mb.
PCI devices: LSI Logic single port LVD/SE SCSI

I'll include links to the text files for /var/log/syslog and /var/log/ 
messages for both machines (Beware, these are quite lengthy, especially 
since we were trying to setup postfix and all the related utilities on 
the rio, and there's still some glitches in the setup, but it might give 
you some idea of why udev isn't properly populating /dev and assorted 
other issues.)

You are welcome to email myself, Helge Deller, or Dave Anglin with your 
thoughts, and/or possible solutions! Thanks!

By the way, I'm mainly the grunt labor for keeping the actual machines 
up and running, so Dave A. and Helge Deller would be the likely 
candidates to understand all this and give an educated reply to possible 
solutions, but please do include me in the Cc's. I'm still trying to 
absorb all the info I can. :-)

Dave L.

Owner and maintenance tech at Land Computer Service

Links: http://www.landcomp.net:884/images/hpviz-var-log-syslog.txt
        http://www.landcomp.net:884/images/hpviz-var-log-messages.txt
        http://www.landcomp.net:884/images/rio-var-log-syslog.txt
        http://www.landcomp.net:884/images/rio-var-log-messages.txt

-- 
Dave Land
Land Computer Service  xmechanic@landcomp.net
ICQ: 676030523


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Subject: [PATCH] Slightly outdated CONFIG_SMP documentation fix
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Cc: Richard Henderson <rth@twiddle.net>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/39965>

I've removed a reference to "most personal computers" being singleprocessor
machines in multiple arches' config help, and also brought the arch/arm spacing
for "singleprocessor" (vs. "single processor" used there originally) in line
with other arches that had that text.

The diff is included below, and cleanly applies and builds on my system. I have
not tested on other systems yet since a documentation fix shouldn't fail to
build inconsistently, but if that's no excuse, I'll be happy to test further
when I can.


diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/alpha/Kconfig linux/arch/alpha/Kconfig
--- linux-vanilla/arch/alpha/Kconfig	2013-12-22 18:03:11.881499508 +0000
+++ linux/arch/alpha/Kconfig	2013-12-22 17:58:31.448505765 +0000
@@ -539,8 +539,8 @@ config SMP
 	depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/arc/Kconfig linux/arch/arc/Kconfig
--- linux-vanilla/arch/arc/Kconfig	2013-12-22 18:03:11.933499507 +0000
+++ linux/arch/arc/Kconfig	2013-12-22 17:58:24.412505922 +0000
@@ -128,8 +128,8 @@ config SMP
 	default n
 	help
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 if SMP
 
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/arm/Kconfig linux/arch/arm/Kconfig
--- linux-vanilla/arch/arm/Kconfig	2013-12-22 18:03:11.956499506 +0000
+++ linux/arch/arm/Kconfig	2013-12-22 17:56:31.187508449 +0000
@@ -1435,14 +1435,14 @@ config SMP
 	depends on MMU || ARM_MPU
 	help
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
-	  you say Y here, the kernel will run on many, but not all, single
-	  processor machines. On a single processor machine, the kernel will
-	  run faster if you say N here.
+	  you say Y here, the kernel will run on many, but not all,
+	  singleprocessor machines. On a singleprocessor machine, the kernel
+	  will run faster if you say N here.
 
 	  See also <file:Documentation/x86/i386/IO-APIC.txt>,
 	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/m32r/Kconfig linux/arch/m32r/Kconfig
--- linux-vanilla/arch/m32r/Kconfig	2013-12-22 18:03:13.100499481 +0000
+++ linux/arch/m32r/Kconfig	2013-12-22 17:58:27.485505854 +0000
@@ -277,8 +277,8 @@ config SMP
 	bool "Symmetric multi-processing support"
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/mips/Kconfig linux/arch/mips/Kconfig
--- linux-vanilla/arch/mips/Kconfig	2013-12-22 18:03:13.290499477 +0000
+++ linux/arch/mips/Kconfig	2013-12-22 17:58:28.576505829 +0000
@@ -2128,8 +2128,8 @@ config SMP
 	depends on SYS_SUPPORTS_SMP
 	help
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/mn10300/Kconfig linux/arch/mn10300/Kconfig
--- linux-vanilla/arch/mn10300/Kconfig	2013-12-22 18:03:13.598499470 +0000
+++ linux/arch/mn10300/Kconfig	2013-12-22 17:58:26.460505877 +0000
@@ -184,8 +184,8 @@ config SMP
 	depends on MN10300_PROC_MN2WS0038 || MN10300_PROC_MN2WS0050
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/parisc/Kconfig linux/arch/parisc/Kconfig
--- linux-vanilla/arch/parisc/Kconfig	2013-12-22 18:03:13.682499468 +0000
+++ linux/arch/parisc/Kconfig	2013-12-22 17:57:38.097506956 +0000
@@ -229,8 +229,8 @@ config SMP
 	bool "Symmetric multi-processing support"
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/s390/Kconfig linux/arch/s390/Kconfig
--- linux-vanilla/arch/s390/Kconfig	2013-12-22 18:03:14.077499459 +0000
+++ linux/arch/s390/Kconfig	2013-12-22 17:58:29.631505806 +0000
@@ -332,8 +332,8 @@ config SMP
 	prompt "Symmetric multi-processing support"
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/sh/Kconfig linux/arch/sh/Kconfig
--- linux-vanilla/arch/sh/Kconfig	2013-12-22 18:03:14.188499457 +0000
+++ linux/arch/sh/Kconfig	2013-12-22 17:58:25.470505899 +0000
@@ -714,8 +714,8 @@ config SMP
 	depends on SYS_SUPPORTS_SMP
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/x86/Kconfig linux/arch/x86/Kconfig
--- linux-vanilla/arch/x86/Kconfig	2013-12-22 18:03:14.584499448 +0000
+++ linux/arch/x86/Kconfig	2013-12-22 17:58:30.711505782 +0000
@@ -278,8 +278,8 @@ config SMP
 	bool "Symmetric multi-processing support"
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 	  If you say N here, the kernel will run on single and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
Signed-off-by: Robert Graffham <psquid@psquid.net>



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On 12/31/2013 02:59 PM, Robert Graffham wrote:
> I've removed a reference to "most personal computers" being singleprocessor
> machines in multiple arches' config help, and also brought the arch/arm spacing
> for "singleprocessor" (vs. "single processor" used there originally) in line
> with other arches that had that text.
> 
> The diff is included below, and cleanly applies and builds on my system. I have
> not tested on other systems yet since a documentation fix shouldn't fail to
> build inconsistently, but if that's no excuse, I'll be happy to test further
> when I can.
> 

Acked-by: H. Peter Anvin <hpa@linux.intel.com>





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Subject: Re: [PATCH] Slightly outdated CONFIG_SMP documentation fix
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Robert Graffham <psquid@psquid.net> wrote:

> +	  singleprocessor machines. On a singleprocessor machine, the kernel

"singleprocessor" looks wrong without a hyphen.  How about "uniprocessor"?

David



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On Thu, 02 Jan 2014 14:56:29 +0000 David Howells <dhowells@redhat.com> wrote:

> Robert Graffham <psquid@psquid.net> wrote:
> 
> > +	  singleprocessor machines. On a singleprocessor machine, the kernel
> 
> "singleprocessor" looks wrong without a hyphen.  How about "uniprocessor"?
> 

Yes please.

Also the patch should have a signed-off-by:, as per
Documentation/SubmittingPatches section 12, please.

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 Paul Mundt <lethal@linux-sh.org>, linux-alpha@vger.kernel.org,
To: Psychedelic Squid <psquid@psquid.net>
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On Thu, 2 Jan 2014 23:08:43 +0000 Psychedelic Squid <psquid@psquid.net> wrote:

> On 2 Jan 2014 23:02, "Andrew Morton" <akpm@linux-foundation.org> wrote:
> >
> > On Thu, 02 Jan 2014 14:56:29 +0000 David Howells <dhowells@redhat.com>
> wrote:
> >
> > > Robert Graffham <psquid@psquid.net> wrote:
> > >
> > > > +     singleprocessor machines. On a singleprocessor machine, the
> kernel
> > >
> > > "singleprocessor" looks wrong without a hyphen.  How about
> "uniprocessor"?
> > >
> >
> > Yes please.
> >
> > Also the patch should have a signed-off-by:, as per
> > Documentation/SubmittingPatches section 12, please.
> >
> 
> The signed-off-by: is already there.

ah, it was appended after the patch.  Don't do that ;)

> I'll get the other changes for the
> revised patch ready shortly, thanks. Also, newbie submitter and l couldn't
> find this in the documentation at a quick glance: should I submit it as a
> new thread, or a continuation of this?

Either is OK.  I tend to prefer continuation-of-this, mainly because it
prevents people from forgetting to cc people who were involved in
earlier discussion.

(Of course, if the discussion graph was complex, no reply-to-all will
capture all participants.  Nobody bothers to go through the discussion
gathering the names of all participants so I often end up doing this
when putting the final patch together)

From - Thu Nov 08 21:10:02 2018
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From: Robert Graffham <psquid@psquid.net>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH] Slightly outdated CONFIG_SMP documentation fix
Date: Fri, 3 Jan 2014 00:36:11 +0000
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Cc: Ralf Baechle <ralf@linux-mips.org>, x86@kernel.org,
        Richard Henderson <rth@twiddle.net>,
        Ingo Molnar <mingo@redhat.com>, linux-mips@linux-mips.org,
        Hirokazu Takata <takata@linux-m32r.org>,
        Al Viro <viro@zeniv.linux.org.uk>, linux-am33-list@redhat.com,
        linux-sh@vger.kernel.org, linux-alpha@vger.kernel.org,
        linux-s390@vger.kernel.org, David Howells <dhowells@redhat.com>,
        Koichi Yasutake <yasutake.koichi@jp.panasonic.com>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        "H. Peter Anvin" <hpa@zytor.com>, Helge Deller <deller@gmx.de>,
        linux-kernel@vger.kernel.org,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        linux-m32r@ml.linux-m32r.org, Thomas Gleixner <tglx@linutronix.de>,
        linux-par
To: Andrew Morton <akpm@linux-foundation.org>
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As requested, I've modified "singleprocessor" to "uniprocessor" in my tree, and
the revised patch is included below (with the Signed-off-by at the right end
this time - thanks Andrew).

To re-summarize given the new revision, this patch now removes an outdated
reference to "most personal computers" having only one CPU, and changes the use
of "singleprocessor" and "single processor" in CONFIG_SMP's documentation to
"uniprocessor" across all arches where that documentation is present.

Signed-off-by: Robert Graffham <psquid@psquid.net>

diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/alpha/Kconfig linux/arch/alpha/Kconfig
--- linux-vanilla/arch/alpha/Kconfig	2013-12-22 18:03:11.881499508 +0000
+++ linux/arch/alpha/Kconfig	2014-01-03 00:20:04.660530554 +0000
@@ -539,13 +539,13 @@ config SMP
 	depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
-	  If you say N here, the kernel will run on single and multiprocessor
+	  If you say N here, the kernel will run on uni- and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
 	  you say Y here, the kernel will run on many, but not all,
-	  singleprocessor machines. On a singleprocessor machine, the kernel
+	  uniprocessor machines. On a uniprocessor machine, the kernel
 	  will run faster if you say N here.
 
 	  See also the SMP-HOWTO available at
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/arc/Kconfig linux/arch/arc/Kconfig
--- linux-vanilla/arch/arc/Kconfig	2013-12-22 18:03:11.933499507 +0000
+++ linux/arch/arc/Kconfig	2013-12-22 17:58:24.412505922 +0000
@@ -128,8 +128,8 @@ config SMP
 	default n
 	help
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
 if SMP
 
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/arm/Kconfig linux/arch/arm/Kconfig
--- linux-vanilla/arch/arm/Kconfig	2013-12-22 18:03:11.956499506 +0000
+++ linux/arch/arm/Kconfig	2014-01-03 00:18:04.776533229 +0000
@@ -1435,14 +1435,14 @@ config SMP
 	depends on MMU || ARM_MPU
 	help
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
-	  If you say N here, the kernel will run on single and multiprocessor
+	  If you say N here, the kernel will run on uni- and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
-	  you say Y here, the kernel will run on many, but not all, single
-	  processor machines. On a single processor machine, the kernel will
-	  run faster if you say N here.
+	  you say Y here, the kernel will run on many, but not all,
+	  uniprocessor machines. On a uniprocessor machine, the kernel
+	  will run faster if you say N here.
 
 	  See also <file:Documentation/x86/i386/IO-APIC.txt>,
 	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/m32r/Kconfig linux/arch/m32r/Kconfig
--- linux-vanilla/arch/m32r/Kconfig	2013-12-22 18:03:13.100499481 +0000
+++ linux/arch/m32r/Kconfig	2014-01-03 00:19:05.746531868 +0000
@@ -277,13 +277,13 @@ config SMP
 	bool "Symmetric multi-processing support"
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
-	  If you say N here, the kernel will run on single and multiprocessor
+	  If you say N here, the kernel will run on uni- and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
 	  you say Y here, the kernel will run on many, but not all,
-	  singleprocessor machines. On a singleprocessor machine, the kernel
+	  uniprocessor machines. On a uniprocessor machine, the kernel
 	  will run faster if you say N here.
 
 	  People using multiprocessor machines who say Y here should also say
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/mips/Kconfig linux/arch/mips/Kconfig
--- linux-vanilla/arch/mips/Kconfig	2013-12-22 18:03:13.290499477 +0000
+++ linux/arch/mips/Kconfig	2014-01-03 00:19:16.904531619 +0000
@@ -2128,13 +2128,13 @@ config SMP
 	depends on SYS_SUPPORTS_SMP
 	help
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
-	  If you say N here, the kernel will run on single and multiprocessor
+	  If you say N here, the kernel will run on uni- and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
 	  you say Y here, the kernel will run on many, but not all,
-	  singleprocessor machines. On a singleprocessor machine, the kernel
+	  uniprocessor machines. On a uniprocessor machine, the kernel
 	  will run faster if you say N here.
 
 	  People using multiprocessor machines who say Y here should also say
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/mn10300/Kconfig linux/arch/mn10300/Kconfig
--- linux-vanilla/arch/mn10300/Kconfig	2013-12-22 18:03:13.598499470 +0000
+++ linux/arch/mn10300/Kconfig	2014-01-03 00:19:02.061531951 +0000
@@ -184,13 +184,13 @@ config SMP
 	depends on MN10300_PROC_MN2WS0038 || MN10300_PROC_MN2WS0050
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
-	  If you say N here, the kernel will run on single and multiprocessor
+	  If you say N here, the kernel will run on uni- and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
 	  you say Y here, the kernel will run on many, but not all,
-	  singleprocessor machines. On a singleprocessor machine, the kernel
+	  uniprocessor machines. On a uniprocessor machine, the kernel
 	  will run faster if you say N here.
 
 	  See also <file:Documentation/x86/i386/IO-APIC.txt>,
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/parisc/Kconfig linux/arch/parisc/Kconfig
--- linux-vanilla/arch/parisc/Kconfig	2013-12-22 18:03:13.682499468 +0000
+++ linux/arch/parisc/Kconfig	2014-01-03 00:18:38.464532477 +0000
@@ -229,13 +229,13 @@ config SMP
 	bool "Symmetric multi-processing support"
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
-	  If you say N here, the kernel will run on single and multiprocessor
+	  If you say N here, the kernel will run on uni- and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
 	  you say Y here, the kernel will run on many, but not all,
-	  singleprocessor machines. On a singleprocessor machine, the kernel
+	  uniprocessor machines. On a uniprocessor machine, the kernel
 	  will run faster if you say N here.
 
 	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/s390/Kconfig linux/arch/s390/Kconfig
--- linux-vanilla/arch/s390/Kconfig	2014-01-03 00:09:20.086544936 +0000
+++ linux/arch/s390/Kconfig	2014-01-03 00:19:59.831530662 +0000
@@ -334,10 +334,10 @@ config SMP
 	  a system with only one CPU, say N. If you have a system with more
 	  than one CPU, say Y.
 
-	  If you say N here, the kernel will run on single and multiprocessor
+	  If you say N here, the kernel will run on uni- and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
 	  you say Y here, the kernel will run on many, but not all,
-	  singleprocessor machines. On a singleprocessor machine, the kernel
+	  uniprocessor machines. On a uniprocessor machine, the kernel
 	  will run faster if you say N here.
 
 	  See also the SMP-HOWTO available at
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/sh/Kconfig linux/arch/sh/Kconfig
--- linux-vanilla/arch/sh/Kconfig	2013-12-22 18:03:14.188499457 +0000
+++ linux/arch/sh/Kconfig	2014-01-03 00:18:58.090532039 +0000
@@ -714,13 +714,13 @@ config SMP
 	depends on SYS_SUPPORTS_SMP
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
-	  If you say N here, the kernel will run on single and multiprocessor
+	  If you say N here, the kernel will run on uni- and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
 	  you say Y here, the kernel will run on many, but not all,
-	  singleprocessor machines. On a singleprocessor machine, the kernel
+	  uniprocessor machines. On a uniprocessor machine, the kernel
 	  will run faster if you say N here.
 
 	  People using multiprocessor machines who say Y here should also say
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/sparc/Kconfig linux/arch/sparc/Kconfig
--- linux-vanilla/arch/sparc/Kconfig	2013-12-22 18:03:14.368499453 +0000
+++ linux/arch/sparc/Kconfig	2014-01-03 00:19:50.073530879 +0000
@@ -152,10 +152,10 @@ config SMP
 	  a system with only one CPU, say N. If you have a system with more
 	  than one CPU, say Y.
 
-	  If you say N here, the kernel will run on single and multiprocessor
+	  If you say N here, the kernel will run on uni- and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
 	  you say Y here, the kernel will run on many, but not all,
-	  singleprocessor machines. On a singleprocessor machine, the kernel
+	  uniprocessor machines. On a uniprocessor machine, the kernel
 	  will run faster if you say N here.
 
 	  People using multiprocessor machines who say Y here should also say
diff -uprN -X linux-vanilla/Documentation/dontdiff linux-vanilla/arch/x86/Kconfig linux/arch/x86/Kconfig
--- linux-vanilla/arch/x86/Kconfig	2013-12-22 18:03:14.584499448 +0000
+++ linux/arch/x86/Kconfig	2014-01-03 00:20:02.957530592 +0000
@@ -278,13 +278,13 @@ config SMP
 	bool "Symmetric multi-processing support"
 	---help---
 	  This enables support for systems with more than one CPU. If you have
-	  a system with only one CPU, like most personal computers, say N. If
-	  you have a system with more than one CPU, say Y.
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
 
-	  If you say N here, the kernel will run on single and multiprocessor
+	  If you say N here, the kernel will run on uni- and multiprocessor
 	  machines, but will use only one CPU of a multiprocessor machine. If
 	  you say Y here, the kernel will run on many, but not all,
-	  singleprocessor machines. On a singleprocessor machine, the kernel
+	  uniprocessor machines. On a uniprocessor machine, the kernel
 	  will run faster if you say N here.
 
 	  Note that if you say Y here and choose architecture "586" or



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Subject: [PATCH] fix crash when using XFS on loopback
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The patch 8456a648cf44f14365f1f44de90a3da2526a4776 causes crash in the
LVM2 testsuite on PA-RISC (the crashing test is fsadm.sh). The testsuite
doesn't crash on 3.12, crashes on 3.13-rc1 and later.

 Bad Address (null pointer deref?): Code=15 regs=000000413edd89a0 (Addr=000006202224647d)
 CPU: 3 PID: 24008 Comm: loop0 Not tainted 3.13.0-rc6 #5
 task: 00000001bf3c0048 ti: 000000413edd8000 task.ti: 000000413edd8000

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
 PSW: 00001000000001101111100100001110 Not tainted
 r00-03  000000ff0806f90e 00000000405c8de0 000000004013e6c0 000000413edd83f0
 r04-07  00000000405a95e0 0000000000000200 00000001414735f0 00000001bf349e40
 r08-11  0000000010fe3d10 0000000000000001 00000040829c7778 000000413efd9000
 r12-15  0000000000000000 000000004060d800 0000000010fe3000 0000000010fe3000
 r16-19  000000413edd82a0 00000041078ddbc0 0000000000000010 0000000000000001
 r20-23  0008f3d0d83a8000 0000000000000000 00000040829c7778 0000000000000080
 r24-27  00000001bf349e40 00000001bf349e40 202d66202224640d 00000000405a95e0
 r28-31  202d662022246465 000000413edd88f0 000000413edd89a0 0000000000000001
 sr00-03  000000000532c000 0000000000000000 0000000000000000 000000000532c000
 sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

 IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401fe42c 00000000401fe430
  IIR: 539c0030    ISR: 00000000202d6000  IOR: 000006202224647d
  CPU:        3   CR30: 000000413edd8000 CR31: 0000000000000000
  ORIG_R28: 00000000405a95e0
  IAOQ[0]: vma_interval_tree_iter_first+0x14/0x48
  IAOQ[1]: vma_interval_tree_iter_first+0x18/0x48
  RP(r2): flush_dcache_page+0x128/0x388
 Backtrace:
  [<000000004013e6c0>] flush_dcache_page+0x128/0x388
  [<0000000010fe6ca0>] lo_splice_actor+0x90/0x148 [loop]
  [<00000000402579b0>] splice_from_pipe_feed+0xc0/0x1d0
  [<00000000402580a4>] __splice_from_pipe+0xac/0xc0
  [<0000000010fe6bbc>] lo_direct_splice_actor+0x1c/0x70 [loop]
  [<000000004025854c>] splice_direct_to_actor+0xec/0x228
  [<0000000010fe63ac>] lo_receive+0xe4/0x298 [loop]
  [<0000000010fe69d8>] loop_thread+0x478/0x640 [loop]
  [<000000004018975c>] kthread+0x134/0x168
  [<000000004012c020>] end_fault_vector+0x20/0x28
  [<00000000115e0098>] xfs_setsize_buftarg+0x0/0x90 [xfs]

 Kernel panic - not syncing: Bad Address (null pointer deref?)

The patch 8456a648cf44f14365f1f44de90a3da2526a4776 changes the page
structure so that the slab subsystem reuses the page->mapping field.

The crash happens in the following way:
* XFS allocates some memory from slab and issues a bio to read data into
  it.
* the bio is sent to the loopback device.
* lo_receive creates an actor and calls splice_direct_to_actor.
* lo_splice_actor copies data to the target page.
* lo_splice_actor calls flush_dcache_page because the page may be mapped
  by userspace. In that case we need to flush the kernel cache.
* flush_dcache_page asks for the list of userspace mappings, however that
  page->mapping field is reused by the slab subsystem for a different
  purpose. This causes the crash.

Note that other architectures without coherent caches (sparc, arm, mips)
also call page_mapping from flush_dcache_page, so they may crash in the
same way.

This patch fixes this bug by testing if the page is a slab page in
page_mapping and returning NULL if it is.


The patch also fixes VM_BUG_ON(PageSlab(page)) that could happen in
earlier kernels in the same scenario on architectures without cache
coherence when CONFIG_DEBUG_VM is enabled - so it should be backported to
stable kernels.


In the old kernels, the function page_mapping is placed in
include/linux/mm.h, so you should modify the patch accordingly when
backporting it.


Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org

---
 mm/util.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Index: linux-3.13-rc6/mm/util.c
===================================================================
--- linux-3.13-rc6.orig/mm/util.c	2014-01-04 00:06:07.000000000 +0100
+++ linux-3.13-rc6/mm/util.c	2014-01-04 00:24:42.000000000 +0100
@@ -390,7 +390,10 @@ struct address_space *page_mapping(struc
 {
 	struct address_space *mapping = page->mapping;
 
-	VM_BUG_ON(PageSlab(page));
+	/* This happens if someone calls flush_dcache_page on slab page */
+	if (unlikely(PageSlab(page)))
+		return NULL;
+
 	if (unlikely(PageSwapCache(page))) {
 		swp_entry_t entry;
 
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On 4-Jan-14, at 12:45 PM, Mikulas Patocka wrote:

> * flush_dcache_page asks for the list of userspace mappings, however  
> that
>  page->mapping field is reused by the slab subsystem for a different
>  purpose. This causes the crash.

I'd noticed the other day that the parisc implementation of  
flush_dcache_page()
should return if "!mapping || mapping != page->mapping" is true.  This  
would
have avoided crash.

Dave
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John David Anglin	dave.anglin@bell.net



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On Sat, 4 Jan 2014, John David Anglin wrote:

> On 4-Jan-14, at 12:45 PM, Mikulas Patocka wrote:
> 
> > * flush_dcache_page asks for the list of userspace mappings, however that
> > page->mapping field is reused by the slab subsystem for a different
> > purpose. This causes the crash.
> 
> I'd noticed the other day that the parisc implementation of
> flush_dcache_page()
> should return if "!mapping || mapping != page->mapping" is true.  This would
> have avoided crash.
> 
> Dave

I think no.

page_mapping returns NULL if the page has only anonymous mapping and it is 
not placed in the swap cache. In this case, you need to flush the kernel 
cache.

Maybe you could skip cache flush if the page is neither anonymous nor 
file-backed, but I haven't seen this condition in other architectures' 
flush_dcache_page.

Mikulas
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On 4-Jan-14, at 2:55 PM, Mikulas Patocka wrote:

> On Sat, 4 Jan 2014, John David Anglin wrote:
>
>> On 4-Jan-14, at 12:45 PM, Mikulas Patocka wrote:
>>
>>> * flush_dcache_page asks for the list of userspace mappings,  
>>> however that
>>> page->mapping field is reused by the slab subsystem for a different
>>> purpose. This causes the crash.
>>
>> I'd noticed the other day that the parisc implementation of
>> flush_dcache_page()
>> should return if "!mapping || mapping != page->mapping" is true.   
>> This would
>> have avoided crash.
>>
>> Dave
>
> I think no.
>
> page_mapping returns NULL if the page has only anonymous mapping and  
> it is
> not placed in the swap cache. In this case, you need to flush the  
> kernel
> cache.


The suggestion is to add the "mapping != page->mapping" to the current  
NULL check.
It occurs after the kernel cache flush.

It doesn't seem right to flush the vma mappings associated with swap  
address space
and that appears to be happening with current code.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Sat, 4 Jan 2014, John David Anglin wrote:

> On 4-Jan-14, at 2:55 PM, Mikulas Patocka wrote:
> 
> > On Sat, 4 Jan 2014, John David Anglin wrote:
> > 
> > > On 4-Jan-14, at 12:45 PM, Mikulas Patocka wrote:
> > > 
> > > > * flush_dcache_page asks for the list of userspace mappings, however
> > > > that
> > > > page->mapping field is reused by the slab subsystem for a different
> > > > purpose. This causes the crash.
> > > 
> > > I'd noticed the other day that the parisc implementation of
> > > flush_dcache_page()
> > > should return if "!mapping || mapping != page->mapping" is true.  This
> > > would
> > > have avoided crash.
> > > 
> > > Dave
> > 
> > I think no.
> > 
> > page_mapping returns NULL if the page has only anonymous mapping and it is
> > not placed in the swap cache. In this case, you need to flush the kernel
> > cache.
> 
> 
> The suggestion is to add the "mapping != page->mapping" to the current NULL
> check.
> It occurs after the kernel cache flush.

"if (!mapping || mapping != page->mapping) return;"
returns if the mapping is NULL (and that is wrong because the variable 
mapping is NULL for anonymous pages).

You could probably return "if (!mapping && !PageAnon(page))", but the 
other architectures aren't doing it.

> It doesn't seem right to flush the vma mappings associated with swap address
> space
> and that appears to be happening with current code.
>
> Dave
> --
> John David Anglin	dave.anglin@bell.net

I suppose that "vma_interval_tree_foreach" is empty operation for swap 
address space. Or isn't it?

Mikulas
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From - Thu Nov 08 21:10:03 2018
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Subject: [PATCH] parisc: Ensure full cache coherency for kmap/kunmap
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Helge Deller noted a few weeks ago problems with the AIO support on  
parisc.  This change is the
result of numerous iterations on how best to deal with this problem.

The solution adopted here is to provide full cache coherency in a  
uniform manner on all parisc systems.
This involves calling flush_dcache_page() on kmap operations and  
flush_kernel_dcache_page() on
kunmap operations.  As a result, the copy_user_page() and  
clear_user_page() functions can be removed
and the overall code is simpler.

The change ensures that both userspace and kernel aliases to a mapped  
page are invalidated and flushed.
This is necessary for the correct operation of PA8800 and PA8900 based  
systems which do not support
inequivalent aliases.

With this change, I have observed no cache related issues on c8000 and  
rp3440.  It is now possible for example
to do kernel builds with "-j64" on four way systems.

On systems using XFS file systems, the patch recently posted by  
Mikulas Patocka to "fix crash using XFS
on loopback" is needed to avoid a hang caused by an uninitialized lock  
passed to flush_dcache_page()
in the page struct.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>
---

--Apple-Mail-58-498524386
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diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index f0e2784..2f9b751 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -125,42 +125,38 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma
 void mark_rodata_ro(void);
 #endif
 
-#ifdef CONFIG_PA8X00
-/* Only pa8800, pa8900 needs this */
-
 #include <asm/kmap_types.h>
 
 #define ARCH_HAS_KMAP
 
-void kunmap_parisc(void *addr);
-
 static inline void *kmap(struct page *page)
 {
 	might_sleep();
+	flush_dcache_page(page);
 	return page_address(page);
 }
 
 static inline void kunmap(struct page *page)
 {
-	kunmap_parisc(page_address(page));
+	flush_kernel_dcache_page_addr(page_address(page));
 }
 
 static inline void *kmap_atomic(struct page *page)
 {
 	pagefault_disable();
+	flush_dcache_page(page);
 	return page_address(page);
 }
 
 static inline void __kunmap_atomic(void *addr)
 {
-	kunmap_parisc(addr);
+	flush_kernel_dcache_page_addr(addr);
 	pagefault_enable();
 }
 
 #define kmap_atomic_prot(page, prot)	kmap_atomic(page)
 #define kmap_atomic_pfn(pfn)	kmap_atomic(pfn_to_page(pfn))
 #define kmap_atomic_to_page(ptr)	virt_to_page(ptr)
-#endif
 
 #endif /* _PARISC_CACHEFLUSH_H */
 
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index b7adb2a..c53fc63 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -28,9 +28,8 @@ struct page;
 
 void clear_page_asm(void *page);
 void copy_page_asm(void *to, void *from);
-void clear_user_page(void *vto, unsigned long vaddr, struct page *pg);
-void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-			   struct page *pg);
+#define clear_user_page(vto, vaddr, page) clear_page_asm(vto)
+#define copy_user_page(vto, vfrom, vaddr, page) copy_page_asm(vto, vfrom)
 
 /* #define CONFIG_PARISC_TMPALIAS */
 
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index c035673..a725455 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -388,41 +388,6 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
-void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
-{
-	clear_page_asm(vto);
-	if (!parisc_requires_coherency())
-		flush_kernel_dcache_page_asm(vto);
-}
-EXPORT_SYMBOL(clear_user_page);
-
-void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-	struct page *pg)
-{
-	/* Copy using kernel mapping.  No coherency is needed
-	   (all in kmap/kunmap) on machines that don't support
-	   non-equivalent aliasing.  However, the `from' page
-	   needs to be flushed before it can be accessed through
-	   the kernel mapping. */
-	preempt_disable();
-	flush_dcache_page_asm(__pa(vfrom), vaddr);
-	preempt_enable();
-	copy_page_asm(vto, vfrom);
-	if (!parisc_requires_coherency())
-		flush_kernel_dcache_page_asm(vto);
-}
-EXPORT_SYMBOL(copy_user_page);
-
-#ifdef CONFIG_PA8X00
-
-void kunmap_parisc(void *addr)
-{
-	if (parisc_requires_coherency())
-		flush_kernel_dcache_page_addr(addr);
-}
-EXPORT_SYMBOL(kunmap_parisc);
-#endif

From - Thu Nov 08 21:10:03 2018
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From: Dave Land <xmechanic@landcomp.net>
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Subject: Re: [PATCH] parisc: Ensure full cache coherency for kmap/kunmap
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On 1/5/14 7:25 PM, John David Anglin wrote:
> Helge Deller noted a few weeks ago problems with the AIO support on
> parisc.  This change is the
> result of numerous iterations on how best to deal with this problem.
>
> The solution adopted here is to provide full cache coherency in a
> uniform manner on all parisc systems.
> This involves calling flush_dcache_page() on kmap operations and
> flush_kernel_dcache_page() on
> kunmap operations.  As a result, the copy_user_page() and
> clear_user_page() functions can be removed
> and the overall code is simpler.
>
> The change ensures that both userspace and kernel aliases to a mapped
> page are invalidated and flushed.
> This is necessary for the correct operation of PA8800 and PA8900 based
> systems which do not support
> inequivalent aliases.
>
> With this change, I have observed no cache related issues on c8000 and
> rp3440.  It is now possible for example
> to do kernel builds with "-j64" on four way systems.
>
> On systems using XFS file systems, the patch recently posted by Mikulas
> Patocka to "fix crash using XFS
> on loopback" is needed to avoid a hang caused by an uninitialized lock
> passed to flush_dcache_page()
> in the page struct.
>
> Signed-off-by: John David Anglin  <dave.anglin@bell.net>
> ---
>
>
> --
> John David Anglin    dave.anglin@bell.net
>
>

Just an FYI for all... I still get the inequivalent aliases messages 
periodically on both my PA8700 machines, and the only tasks they're 
doing at the moment is buildd work, and a LAMP-based website on the 
'hpviz' (J6750), though I haven't seen any of those messages pointing 
toward issues with PHP, Apache2, or MySQL... at least not yet. Hopefully 
this patch will help eliminate the problem on the PA8700 series and 
others. ;-)

Dave L.

-- 
Dave Land
Land Computer Service  xmechanic@landcomp.net
ICQ: 676030523


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From - Thu Nov 08 21:10:03 2018
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Subject: Re: [PATCH] fix crash when using XFS on loopback
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To: Mikulas Patocka <mpatocka@redhat.com>
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On Sat, Jan 04, 2014 at 12:45:45PM -0500, Mikulas Patocka wrote:
> The patch 8456a648cf44f14365f1f44de90a3da2526a4776 causes crash in the
> LVM2 testsuite on PA-RISC (the crashing test is fsadm.sh). The testsuite
> doesn't crash on 3.12, crashes on 3.13-rc1 and later.
> 
>  Bad Address (null pointer deref?): Code=15 regs=000000413edd89a0 (Addr=000006202224647d)
>  CPU: 3 PID: 24008 Comm: loop0 Not tainted 3.13.0-rc6 #5
>  task: 00000001bf3c0048 ti: 000000413edd8000 task.ti: 000000413edd8000
> 
>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>  PSW: 00001000000001101111100100001110 Not tainted
>  r00-03  000000ff0806f90e 00000000405c8de0 000000004013e6c0 000000413edd83f0
>  r04-07  00000000405a95e0 0000000000000200 00000001414735f0 00000001bf349e40
>  r08-11  0000000010fe3d10 0000000000000001 00000040829c7778 000000413efd9000
>  r12-15  0000000000000000 000000004060d800 0000000010fe3000 0000000010fe3000
>  r16-19  000000413edd82a0 00000041078ddbc0 0000000000000010 0000000000000001
>  r20-23  0008f3d0d83a8000 0000000000000000 00000040829c7778 0000000000000080
>  r24-27  00000001bf349e40 00000001bf349e40 202d66202224640d 00000000405a95e0
>  r28-31  202d662022246465 000000413edd88f0 000000413edd89a0 0000000000000001
>  sr00-03  000000000532c000 0000000000000000 0000000000000000 000000000532c000
>  sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
>  IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401fe42c 00000000401fe430
>   IIR: 539c0030    ISR: 00000000202d6000  IOR: 000006202224647d
>   CPU:        3   CR30: 000000413edd8000 CR31: 0000000000000000
>   ORIG_R28: 00000000405a95e0
>   IAOQ[0]: vma_interval_tree_iter_first+0x14/0x48
>   IAOQ[1]: vma_interval_tree_iter_first+0x18/0x48
>   RP(r2): flush_dcache_page+0x128/0x388
>  Backtrace:
>   [<000000004013e6c0>] flush_dcache_page+0x128/0x388
>   [<0000000010fe6ca0>] lo_splice_actor+0x90/0x148 [loop]
>   [<00000000402579b0>] splice_from_pipe_feed+0xc0/0x1d0
>   [<00000000402580a4>] __splice_from_pipe+0xac/0xc0
>   [<0000000010fe6bbc>] lo_direct_splice_actor+0x1c/0x70 [loop]
>   [<000000004025854c>] splice_direct_to_actor+0xec/0x228
>   [<0000000010fe63ac>] lo_receive+0xe4/0x298 [loop]
>   [<0000000010fe69d8>] loop_thread+0x478/0x640 [loop]
>   [<000000004018975c>] kthread+0x134/0x168
>   [<000000004012c020>] end_fault_vector+0x20/0x28
>   [<00000000115e0098>] xfs_setsize_buftarg+0x0/0x90 [xfs]
> 
>  Kernel panic - not syncing: Bad Address (null pointer deref?)
> 
> The patch 8456a648cf44f14365f1f44de90a3da2526a4776 changes the page
> structure so that the slab subsystem reuses the page->mapping field.
> 
> The crash happens in the following way:
> * XFS allocates some memory from slab and issues a bio to read data into
>   it.
> * the bio is sent to the loopback device.
> * lo_receive creates an actor and calls splice_direct_to_actor.
> * lo_splice_actor copies data to the target page.
> * lo_splice_actor calls flush_dcache_page because the page may be mapped
>   by userspace. In that case we need to flush the kernel cache.
> * flush_dcache_page asks for the list of userspace mappings, however that
>   page->mapping field is reused by the slab subsystem for a different
>   purpose. This causes the crash.
> 
> Note that other architectures without coherent caches (sparc, arm, mips)
> also call page_mapping from flush_dcache_page, so they may crash in the
> same way.
> 
> This patch fixes this bug by testing if the page is a slab page in
> page_mapping and returning NULL if it is.
> 
> 
> The patch also fixes VM_BUG_ON(PageSlab(page)) that could happen in
> earlier kernels in the same scenario on architectures without cache
> coherence when CONFIG_DEBUG_VM is enabled - so it should be backported to
> stable kernels.
> 
> 
> In the old kernels, the function page_mapping is placed in
> include/linux/mm.h, so you should modify the patch accordingly when
> backporting it.
> 
> 
> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
> Cc: stable@vger.kernel.org
> 
> ---
>  mm/util.c |    5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> Index: linux-3.13-rc6/mm/util.c
> ===================================================================
> --- linux-3.13-rc6.orig/mm/util.c	2014-01-04 00:06:07.000000000 +0100
> +++ linux-3.13-rc6/mm/util.c	2014-01-04 00:24:42.000000000 +0100
> @@ -390,7 +390,10 @@ struct address_space *page_mapping(struc
>  {
>  	struct address_space *mapping = page->mapping;
>  
> -	VM_BUG_ON(PageSlab(page));
> +	/* This happens if someone calls flush_dcache_page on slab page */
> +	if (unlikely(PageSlab(page)))
> +		return NULL;
> +
>  	if (unlikely(PageSwapCache(page))) {
>  		swp_entry_t entry;
>  
> --

Hello,

I'm surprised that this VM_BUG_ON() has not been triggered until now. It was
introduced in 2007 by commit (b5fab14). Maybe there is no person who test
with CONFIG_DEBUG_VM.

There is one more bug report same as this.
* possible regression on 3.13 when calling flush_dcache_page
  (lkml.org/lkml/2013/12/12/255)

As mentioned in the description of commit (b5fab14), slab object may not be
properly aligned and use of page oriented function to this object can be
dangerous. I searched the XFS code and found that they only try to allocate
multiple of 512 bytes, so there is no problem for now. But, IMHO, it is better
not to use slab objects for this purpose.

And I rapidly searched every callsites of page_mapping() and, IMHO, this patch
would work correctly. But possibly reverting original commit is better solution.

Hello, Pekka and Christoph.
Could you teach me which direction we have to go?

Thanks.
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From - Thu Nov 08 21:10:03 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Ensure full cache coherency for kmap/kunmap
Date: Mon, 06 Jan 2014 10:21:47 +0100
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Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
To: Dave Land <xmechanic@landcomp.net>,
	John David Anglin <dave.anglin@bell.net>,
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On 01/06/2014 07:25 AM, Dave Land wrote:
> On 1/5/14 7:25 PM, John David Anglin wrote:
>> Helge Deller noted a few weeks ago problems with the AIO support
>> on parisc.  This change is the result of numerous iterations on how
>> best to deal with this problem.
>> 
>> The solution adopted here is to provide full cache coherency in a 
>> uniform manner on all parisc systems. This involves calling
>> flush_dcache_page() on kmap operations and 
>> flush_kernel_dcache_page() on kunmap operations.  As a result, the
>> copy_user_page() and clear_user_page() functions can be removed and
>> the overall code is simpler.
>> 
>> The change ensures that both userspace and kernel aliases to a
>> mapped page are invalidated and flushed. This is necessary for the
>> correct operation of PA8800 and PA8900 based systems which do not
>> support inequivalent aliases.
>> 
>> With this change, I have observed no cache related issues on c8000
>> and rp3440.  It is now possible for example to do kernel builds
>> with "-j64" on four way systems.
>> 
>> On systems using XFS file systems, the patch recently posted by
>> Mikulas Patocka to "fix crash using XFS on loopback" is needed to
>> avoid a hang caused by an uninitialized lock passed to
>> flush_dcache_page() in the page struct.
>> 
>> Signed-off-by: John David Anglin  <dave.anglin@bell.net> ---
>> 
>> 
> 
> Just an FYI for all... I still get the inequivalent aliases messages
> periodically on both my PA8700 machines, and the only tasks they're

Just for the record:

The inequivalent aliases messages are uncritical and they are not related to this
patch. Those messages just mean, that the userspace processes needs to
be rebuilt to correctly align their data areas. A rebuild of those will
fix this problem.

The patch above should fix kernel bugs like this one:

[154422.816000] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004021fa9c 000000004021faa0
[154422.964000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000006ffdb36c7f0
[154422.964000]  CPU:        1   CR30: 00000001fff6c000 CR31: ffffffffffffffff
[154423.108000]  ORIG_R28: 00000001ef520c48
[154423.108000]  IAOQ[0]: iov_iter_advance+0x3c/0xd0
[154423.252000]  IAOQ[1]: iov_iter_advance+0x40/0xd0
[154423.252000]  RP(r2): generic_file_buffered_write+0x20c/0x3e8
[154423.400000] Backtrace:
[154423.400000]  [<000000004022198c>] generic_file_buffered_write+0x20c/0x3e8
[154423.544000]  [<00000000402242b4>] __generic_file_aio_write+0x24c/0x470
[154423.544000]  [<0000000040224570>] generic_file_aio_write+0x98/0x128
[154423.692000]  [<00000000107ab51c>] ext4_file_write+0xc4/0x558 [ext4]
[154423.836000]  [<000000004029ec78>] do_sync_write+0x90/0xe8
[154423.836000]  [<000000004029f6ac>] vfs_write+0xdc/0x298
[154423.984000]  [<00000000402a05c0>] SyS_write+0xa0/0x108
[154423.984000]  [<0000000040105fc0>] syscall_exit+0x0/0x14

> doing at the moment is buildd work, and a LAMP-based website on the
> 'hpviz' (J6750), though I haven't seen any of those messages pointing
> toward issues with PHP, Apache2, or MySQL... at least not yet.
> Hopefully this patch will help eliminate the problem on the PA8700
> series and others. ;-)

Helge
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From - Thu Nov 08 21:10:03 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: Re: [PATCH] fix crash when using XFS on loopback
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Hi

On Mon, 6 Jan 2014, Joonsoo Kim wrote:

> Hello,
> 
> I'm surprised that this VM_BUG_ON() has not been triggered until now. It was
> introduced in 2007 by commit (b5fab14). Maybe there is no person who test
> with CONFIG_DEBUG_VM.

Last time I tried it, PS-RISC didn't work with CONFIG_DEBUG_VM at all.

> There is one more bug report same as this.
> * possible regression on 3.13 when calling flush_dcache_page
>   (lkml.org/lkml/2013/12/12/255)

That link doesn't show anything.

> As mentioned in the description of commit (b5fab14), slab object may not be
> properly aligned and use of page oriented function to this object can be
> dangerous. I searched the XFS code and found that they only try to allocate
> multiple of 512 bytes, so there is no problem for now. But, IMHO, it is better
> not to use slab objects for this purpose.

If slab debugging is enabled, kmalloc memory is not aligned.

In XFS in xfs_buf_allocate_memory they test if the kmalloc memory crosses 
page boundary - if it does, they free the kmalloc memory and allocate a 
full page. Maybe this approach could still run into problems with some 
bus-master adapters that assume alignment in hardware...


dm-bufio also does I/O to slab-allocated buffers, but it allocates the 
object from slab (not kmalloc) with proper alignment.

> And I rapidly searched every callsites of page_mapping() and, IMHO, this 
> patch would work correctly. But possibly reverting original commit is 
> better solution.

Reverting the original commit wouldn't fix that VM_BUG_ON.

> Hello, Pekka and Christoph.
> Could you teach me which direction we have to go?
> 
> Thanks.

Mikulas
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Subject: Re: [PATCH] fix crash when using XFS on loopback
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On Mon, Jan 06, 2014 at 12:54:22PM -0500, Mikulas Patocka wrote:
> Hi
> 
> On Mon, 6 Jan 2014, Joonsoo Kim wrote:
> 
> > Hello,
> > 
> > I'm surprised that this VM_BUG_ON() has not been triggered until now. It was
> > introduced in 2007 by commit (b5fab14). Maybe there is no person who test
> > with CONFIG_DEBUG_VM.
> 
> Last time I tried it, PS-RISC didn't work with CONFIG_DEBUG_VM at all.
> 
> > There is one more bug report same as this.
> > * possible regression on 3.13 when calling flush_dcache_page
> >   (lkml.org/lkml/2013/12/12/255)
> 
> That link doesn't show anything.
> 
> > As mentioned in the description of commit (b5fab14), slab object may not be
> > properly aligned and use of page oriented function to this object can be
> > dangerous. I searched the XFS code and found that they only try to allocate
> > multiple of 512 bytes, so there is no problem for now. But, IMHO, it is better
> > not to use slab objects for this purpose.
> 
> If slab debugging is enabled, kmalloc memory is not aligned.
> 
> In XFS in xfs_buf_allocate_memory they test if the kmalloc memory crosses 
> page boundary - if it does, they free the kmalloc memory and allocate a 
> full page. Maybe this approach could still run into problems with some 
> bus-master adapters that assume alignment in hardware...
> 
> 
> dm-bufio also does I/O to slab-allocated buffers, but it allocates the 
> object from slab (not kmalloc) with proper alignment.

Hello,

Okay. I see.
Thanks for good explanation.

> 
> > And I rapidly searched every callsites of page_mapping() and, IMHO, this 
> > patch would work correctly. But possibly reverting original commit is 
> > better solution.
> 
> Reverting the original commit wouldn't fix that VM_BUG_ON.

Initially, I thought that VM_BUG_ON() isn't wrong and it was better to remove
the callsites where do I/O with slab-allocated buffers, because doing I/O
with slab-allocated buffers needs a great care. So I didn't fully agreed with
your patch and recommended to revert original commit yesterday. After reverting
that, I would attempt to remove the callsites.

But, now, I change my thought, because of your explanation. There are already
some users to do I/O with slab-allocated buffers and they already did it with
some cares, so I guess that admitting this usage is more beneficial than
forbidding it.

Reviewed-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>

Thanks.
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] fix crash when using XFS on loopback
Date: Wed, 08 Jan 2014 22:05:24 +0100
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On 01/07/2014 02:41 AM, Joonsoo Kim wrote:
> On Mon, Jan 06, 2014 at 12:54:22PM -0500, Mikulas Patocka wrote:
>> Hi
>>
>> On Mon, 6 Jan 2014, Joonsoo Kim wrote:
>>
>>> Hello,
>>>
>>> I'm surprised that this VM_BUG_ON() has not been triggered until now. It was
>>> introduced in 2007 by commit (b5fab14). Maybe there is no person who test
>>> with CONFIG_DEBUG_VM.
>> Last time I tried it, PS-RISC didn't work with CONFIG_DEBUG_VM at all.
>>
>>> There is one more bug report same as this.
>>> * possible regression on 3.13 when calling flush_dcache_page
>>>    (lkml.org/lkml/2013/12/12/255)
>> That link doesn't show anything.
>>
>>> As mentioned in the description of commit (b5fab14), slab object may not be
>>> properly aligned and use of page oriented function to this object can be
>>> dangerous. I searched the XFS code and found that they only try to allocate
>>> multiple of 512 bytes, so there is no problem for now. But, IMHO, it is better
>>> not to use slab objects for this purpose.
>> If slab debugging is enabled, kmalloc memory is not aligned.
>>
>> In XFS in xfs_buf_allocate_memory they test if the kmalloc memory crosses
>> page boundary - if it does, they free the kmalloc memory and allocate a
>> full page. Maybe this approach could still run into problems with some
>> bus-master adapters that assume alignment in hardware...
>>
>>
>> dm-bufio also does I/O to slab-allocated buffers, but it allocates the
>> object from slab (not kmalloc) with proper alignment.
> Hello,
>
> Okay. I see.
> Thanks for good explanation.
>
>>> And I rapidly searched every callsites of page_mapping() and, IMHO, this
>>> patch would work correctly. But possibly reverting original commit is
>>> better solution.
>> Reverting the original commit wouldn't fix that VM_BUG_ON.
> Initially, I thought that VM_BUG_ON() isn't wrong and it was better to remove
> the callsites where do I/O with slab-allocated buffers, because doing I/O
> with slab-allocated buffers needs a great care. So I didn't fully agreed with
> your patch and recommended to revert original commit yesterday. After reverting
> that, I would attempt to remove the callsites.
>
> But, now, I change my thought, because of your explanation. There are already
> some users to do I/O with slab-allocated buffers and they already did it with
> some cares, so I guess that admitting this usage is more beneficial than
> forbidding it.
>
> Reviewed-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>

I can queue up this patch in my next pull-request for the parisc-tree 
which I plan to
send tomorrow, unless people want this patch to go via mm-tree or 
similiar...
Please let me know.

Helge

From - Thu Nov 08 21:10:03 2018
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From: Pekka Enberg <penberg@kernel.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] fix crash when using XFS on loopback
Date: Wed, 8 Jan 2014 23:37:49 +0200
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Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>,
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	Andi Kleen <ak@linux.intel.com>,
	Christoph Lameter <cl@linux.com>,
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To: Helge Deller <deller@gmx.de>
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On Wed, Jan 8, 2014 at 11:05 PM, Helge Deller <deller@gmx.de> wrote:
> On 01/07/2014 02:41 AM, Joonsoo Kim wrote:
>>
>> On Mon, Jan 06, 2014 at 12:54:22PM -0500, Mikulas Patocka wrote:
>>>
>>> Hi
>>>
>>> On Mon, 6 Jan 2014, Joonsoo Kim wrote:
>>>
>>>> Hello,
>>>>
>>>> I'm surprised that this VM_BUG_ON() has not been triggered until now. It
>>>> was
>>>> introduced in 2007 by commit (b5fab14). Maybe there is no person who
>>>> test
>>>> with CONFIG_DEBUG_VM.
>>>
>>> Last time I tried it, PS-RISC didn't work with CONFIG_DEBUG_VM at all.
>>>
>>>> There is one more bug report same as this.
>>>> * possible regression on 3.13 when calling flush_dcache_page
>>>>    (lkml.org/lkml/2013/12/12/255)
>>>
>>> That link doesn't show anything.
>>>
>>>> As mentioned in the description of commit (b5fab14), slab object may not
>>>> be
>>>> properly aligned and use of page oriented function to this object can be
>>>> dangerous. I searched the XFS code and found that they only try to
>>>> allocate
>>>> multiple of 512 bytes, so there is no problem for now. But, IMHO, it is
>>>> better
>>>> not to use slab objects for this purpose.
>>>
>>> If slab debugging is enabled, kmalloc memory is not aligned.
>>>
>>> In XFS in xfs_buf_allocate_memory they test if the kmalloc memory crosses
>>> page boundary - if it does, they free the kmalloc memory and allocate a
>>> full page. Maybe this approach could still run into problems with some
>>> bus-master adapters that assume alignment in hardware...
>>>
>>>
>>> dm-bufio also does I/O to slab-allocated buffers, but it allocates the
>>> object from slab (not kmalloc) with proper alignment.
>>
>> Hello,
>>
>> Okay. I see.
>> Thanks for good explanation.
>>
>>>> And I rapidly searched every callsites of page_mapping() and, IMHO, this
>>>> patch would work correctly. But possibly reverting original commit is
>>>> better solution.
>>>
>>> Reverting the original commit wouldn't fix that VM_BUG_ON.
>>
>> Initially, I thought that VM_BUG_ON() isn't wrong and it was better to
>> remove
>> the callsites where do I/O with slab-allocated buffers, because doing I/O
>> with slab-allocated buffers needs a great care. So I didn't fully agreed
>> with
>> your patch and recommended to revert original commit yesterday. After
>> reverting
>> that, I would attempt to remove the callsites.
>>
>> But, now, I change my thought, because of your explanation. There are
>> already
>> some users to do I/O with slab-allocated buffers and they already did it
>> with
>> some cares, so I guess that admitting this usage is more beneficial than
>> forbidding it.
>>
>> Reviewed-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
>
>
> I can queue up this patch in my next pull-request for the parisc-tree which
> I plan to
> send tomorrow, unless people want this patch to go via mm-tree or
> similiar...
> Please let me know.

The patch looks good to me but it probably should go through Andrew's tree.

Acked-by: Pekka Enberg <penberg@kernel.org>
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Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>,
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	Andi Kleen <ak@linux.intel.com>,
	Christoph Lameter <cl@linux.com>,
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On 01/08/2014 10:37 PM, Pekka Enberg wrote:
> On Wed, Jan 8, 2014 at 11:05 PM, Helge Deller <deller@gmx.de> wrote:
>> On 01/07/2014 02:41 AM, Joonsoo Kim wrote:
>>> On Mon, Jan 06, 2014 at 12:54:22PM -0500, Mikulas Patocka wrote:
>>>> Hi
>>>>
>>>> On Mon, 6 Jan 2014, Joonsoo Kim wrote:
>>>>
>>>>> Hello,
>>>>>
>>>>> I'm surprised that this VM_BUG_ON() has not been triggered until now. It
>>>>> was
>>>>> introduced in 2007 by commit (b5fab14). Maybe there is no person who
>>>>> test
>>>>> with CONFIG_DEBUG_VM.
>>>> Last time I tried it, PS-RISC didn't work with CONFIG_DEBUG_VM at all.
>>>>
>>>>> There is one more bug report same as this.
>>>>> * possible regression on 3.13 when calling flush_dcache_page
>>>>>     (lkml.org/lkml/2013/12/12/255)
>>>> That link doesn't show anything.
>>>>
>>>>> As mentioned in the description of commit (b5fab14), slab object may not
>>>>> be
>>>>> properly aligned and use of page oriented function to this object can be
>>>>> dangerous. I searched the XFS code and found that they only try to
>>>>> allocate
>>>>> multiple of 512 bytes, so there is no problem for now. But, IMHO, it is
>>>>> better
>>>>> not to use slab objects for this purpose.
>>>> If slab debugging is enabled, kmalloc memory is not aligned.
>>>>
>>>> In XFS in xfs_buf_allocate_memory they test if the kmalloc memory crosses
>>>> page boundary - if it does, they free the kmalloc memory and allocate a
>>>> full page. Maybe this approach could still run into problems with some
>>>> bus-master adapters that assume alignment in hardware...
>>>>
>>>>
>>>> dm-bufio also does I/O to slab-allocated buffers, but it allocates the
>>>> object from slab (not kmalloc) with proper alignment.
>>> Hello,
>>>
>>> Okay. I see.
>>> Thanks for good explanation.
>>>
>>>>> And I rapidly searched every callsites of page_mapping() and, IMHO, this
>>>>> patch would work correctly. But possibly reverting original commit is
>>>>> better solution.
>>>> Reverting the original commit wouldn't fix that VM_BUG_ON.
>>> Initially, I thought that VM_BUG_ON() isn't wrong and it was better to
>>> remove
>>> the callsites where do I/O with slab-allocated buffers, because doing I/O
>>> with slab-allocated buffers needs a great care. So I didn't fully agreed
>>> with
>>> your patch and recommended to revert original commit yesterday. After
>>> reverting
>>> that, I would attempt to remove the callsites.
>>>
>>> But, now, I change my thought, because of your explanation. There are
>>> already
>>> some users to do I/O with slab-allocated buffers and they already did it
>>> with
>>> some cares, so I guess that admitting this usage is more beneficial than
>>> forbidding it.
>>>
>>> Reviewed-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
>>
>> I can queue up this patch in my next pull-request for the parisc-tree which
>> I plan to
>> send tomorrow, unless people want this patch to go via mm-tree or
>> similiar...
>> Please let me know.
> The patch looks good to me but it probably should go through Andrew's tree.
>
> Acked-by: Pekka Enberg <penberg@kernel.org>

Absolutely fine with me. Andrew, can you please pick it up for 3.13 ?
Thanks,
Helge

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On Wed, 8 Jan 2014 23:37:49 +0200 Pekka Enberg <penberg@kernel.org> wrote:

> The patch looks good to me but it probably should go through Andrew's tree.

yup.

page_mapping() will be called quite frequently, and adding a new
test-n-branch in there will be somewhat costly.  We might end up with a
better kernel if we were to instead revert 8456a648cf44f.  How useful
was that patch?
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From - Thu Nov 08 21:10:03 2018
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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Hi Linus,

please pull one late fix for Linux v3.13 for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.13

This patch fixes the kmap/kunmap implementation on parisc and finally makes AIO work on parisc.

Thanks,
Helge

----------------------------------------------------------------
John David Anglin (1):
      parisc: Ensure full cache coherency for kmap/kunmap

 arch/parisc/include/asm/cacheflush.h | 12 ++++--------
 arch/parisc/include/asm/page.h       |  5 ++---
 arch/parisc/kernel/cache.c           | 35 -----------------------------------
 3 files changed, 6 insertions(+), 46 deletions(-)
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On Wed, Jan 08, 2014 at 01:59:30PM -0800, Andrew Morton wrote:
> On Wed, 8 Jan 2014 23:37:49 +0200 Pekka Enberg <penberg@kernel.org> wrote:
> 
> > The patch looks good to me but it probably should go through Andrew's tree.
> 
> yup.
> 
> page_mapping() will be called quite frequently, and adding a new
> test-n-branch in there will be somewhat costly.  We might end up with a
> better kernel if we were to instead revert 8456a648cf44f.  How useful
> was that patch?

Hello,

Performance effect of this patch was decribed in the cover-letter, but
I missed to attach it to patch description. Sorry about that.

In summary, this patch saves some memory and decreases cache-footprint
so that it increases performance.

Here goes the description in cover-letter.

Below is some numbers of 'cat /proc/slabinfo'.

* Before *
# name            <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab> : tunables [snip...]
kmalloc-512          527    600    512    8    1 : tunables   54   27    0 : slabdata     75     75      0
kmalloc-256          210    210    256   15    1 : tunables  120   60    0 : slabdata     14     14      0
kmalloc-192         1040   1040    192   20    1 : tunables  120   60    0 : slabdata     52     52      0
kmalloc-96           750    750    128   30    1 : tunables  120   60    0 : slabdata     25     25      0
kmalloc-64          2773   2773     64   59    1 : tunables  120   60    0 : slabdata     47     47      0
kmalloc-128          660    690    128   30    1 : tunables  120   60    0 : slabdata     23     23      0
kmalloc-32         11200  11200     32  112    1 : tunables  120   60    0 : slabdata    100    100      0
kmem_cache           197    200    192   20    1 : tunables  120   60    0 : slabdata     10     10      0

* After *
# name            <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab> : tunables [snip...]
kmalloc-512          525    640    512    8    1 : tunables   54   27    0 : slabdata     80     80      0
kmalloc-256          210    210    256   15    1 : tunables  120   60    0 : slabdata     14     14      0
kmalloc-192         1016   1040    192   20    1 : tunables  120   60    0 : slabdata     52     52      0
kmalloc-96           560    620    128   31    1 : tunables  120   60    0 : slabdata     20     20      0
kmalloc-64          2148   2280     64   60    1 : tunables  120   60    0 : slabdata     38     38      0
kmalloc-128          647    682    128   31    1 : tunables  120   60    0 : slabdata     22     22      0
kmalloc-32         11360  11413     32  113    1 : tunables  120   60    0 : slabdata    101    101      0
kmem_cache           197    200    192   20    1 : tunables  120   60    0 : slabdata     10     10      0

kmem_caches consisting of objects less than or equal to 128 byte have one more
objects in a slab. You can see it at objperslab.


Here are the performance results on my 4 cpus machine.

* Before *

 Performance counter stats for 'perf bench sched messaging -g 50 -l 1000' (10 runs):

       238,309,671 cache-misses                                                  ( +-  0.40% )

      12.010172090 seconds time elapsed                                          ( +-  0.21% )

* After *

 Performance counter stats for 'perf bench sched messaging -g 50 -l 1000' (10 runs):

       229,945,138 cache-misses                                                  ( +-  0.23% )

      11.627897174 seconds time elapsed                                          ( +-  0.14% )

cache-misses are reduced by this patchset, roughly 5%.
And elapsed times are also improved by 3.1% to baseline.

Thanks.
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On Thu, 9 Jan 2014 09:13:31 +0900 Joonsoo Kim <iamjoonsoo.kim@lge.com> wrote:

> On Wed, Jan 08, 2014 at 01:59:30PM -0800, Andrew Morton wrote:
> > On Wed, 8 Jan 2014 23:37:49 +0200 Pekka Enberg <penberg@kernel.org> wrote:
> > 
> > > The patch looks good to me but it probably should go through Andrew's tree.
> > 
> > yup.
> > 
> > page_mapping() will be called quite frequently, and adding a new
> > test-n-branch in there will be somewhat costly.  We might end up with a
> > better kernel if we were to instead revert 8456a648cf44f.  How useful
> > was that patch?
> 
> Hello,
> 
> Performance effect of this patch was decribed in the cover-letter, but
> I missed to attach it to patch description. Sorry about that.
> 
> In summary, this patch saves some memory and decreases cache-footprint
> so that it increases performance.
> 
> Here goes the description in cover-letter.
> 
> ...
>
> cache-misses are reduced by this patchset, roughly 5%.
> And elapsed times are also improved by 3.1% to baseline.

ah, OK, thanks, useful.  A few instructions added to page_mapping()
won't have effects like that!
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On Thu, Jan 9, 2014 at 2:19 AM, Andrew Morton <akpm@linux-foundation.org> wrote:
>> cache-misses are reduced by this patchset, roughly 5%.
>> And elapsed times are also improved by 3.1% to baseline.
>
> ah, OK, thanks, useful.  A few instructions added to page_mapping()
> won't have effects like that!

Yup, I merged the series because the numbers were so impressive.

There's a link to the cover letter in merge commit 24f971a but it
would have been better to include them in the changelog itself.

                     Pekka

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Hi Mikulas,

On Sat, Jan 04, 2014 at 12:45:45PM -0500, Mikulas Patocka wrote:
> The patch 8456a648cf44f14365f1f44de90a3da2526a4776 causes crash in the
> LVM2 testsuite on PA-RISC (the crashing test is fsadm.sh). The testsuite
> doesn't crash on 3.12, crashes on 3.13-rc1 and later.
> 
>  Bad Address (null pointer deref?): Code=15 regs=000000413edd89a0 (Addr=000006202224647d)
>  CPU: 3 PID: 24008 Comm: loop0 Not tainted 3.13.0-rc6 #5
>  task: 00000001bf3c0048 ti: 000000413edd8000 task.ti: 000000413edd8000
> 
>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>  PSW: 00001000000001101111100100001110 Not tainted
>  r00-03  000000ff0806f90e 00000000405c8de0 000000004013e6c0 000000413edd83f0
>  r04-07  00000000405a95e0 0000000000000200 00000001414735f0 00000001bf349e40
>  r08-11  0000000010fe3d10 0000000000000001 00000040829c7778 000000413efd9000
>  r12-15  0000000000000000 000000004060d800 0000000010fe3000 0000000010fe3000
>  r16-19  000000413edd82a0 00000041078ddbc0 0000000000000010 0000000000000001
>  r20-23  0008f3d0d83a8000 0000000000000000 00000040829c7778 0000000000000080
>  r24-27  00000001bf349e40 00000001bf349e40 202d66202224640d 00000000405a95e0
>  r28-31  202d662022246465 000000413edd88f0 000000413edd89a0 0000000000000001
>  sr00-03  000000000532c000 0000000000000000 0000000000000000 000000000532c000
>  sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
>  IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401fe42c 00000000401fe430
>   IIR: 539c0030    ISR: 00000000202d6000  IOR: 000006202224647d
>   CPU:        3   CR30: 000000413edd8000 CR31: 0000000000000000
>   ORIG_R28: 00000000405a95e0
>   IAOQ[0]: vma_interval_tree_iter_first+0x14/0x48
>   IAOQ[1]: vma_interval_tree_iter_first+0x18/0x48
>   RP(r2): flush_dcache_page+0x128/0x388
>  Backtrace:
>   [<000000004013e6c0>] flush_dcache_page+0x128/0x388
>   [<0000000010fe6ca0>] lo_splice_actor+0x90/0x148 [loop]
>   [<00000000402579b0>] splice_from_pipe_feed+0xc0/0x1d0
>   [<00000000402580a4>] __splice_from_pipe+0xac/0xc0
>   [<0000000010fe6bbc>] lo_direct_splice_actor+0x1c/0x70 [loop]
>   [<000000004025854c>] splice_direct_to_actor+0xec/0x228
>   [<0000000010fe63ac>] lo_receive+0xe4/0x298 [loop]
>   [<0000000010fe69d8>] loop_thread+0x478/0x640 [loop]
>   [<000000004018975c>] kthread+0x134/0x168
>   [<000000004012c020>] end_fault_vector+0x20/0x28
>   [<00000000115e0098>] xfs_setsize_buftarg+0x0/0x90 [xfs]
> 
>  Kernel panic - not syncing: Bad Address (null pointer deref?)
> 
> The patch 8456a648cf44f14365f1f44de90a3da2526a4776 changes the page
> structure so that the slab subsystem reuses the page->mapping field.
> 
> The crash happens in the following way:
> * XFS allocates some memory from slab and issues a bio to read data into
>   it.
> * the bio is sent to the loopback device.
> * lo_receive creates an actor and calls splice_direct_to_actor.
> * lo_splice_actor copies data to the target page.
> * lo_splice_actor calls flush_dcache_page because the page may be mapped
>   by userspace. In that case we need to flush the kernel cache.
> * flush_dcache_page asks for the list of userspace mappings, however that
>   page->mapping field is reused by the slab subsystem for a different
>   purpose. This causes the crash.
> 
> Note that other architectures without coherent caches (sparc, arm, mips)
> also call page_mapping from flush_dcache_page, so they may crash in the
> same way.
> 
> This patch fixes this bug by testing if the page is a slab page in
> page_mapping and returning NULL if it is.
> 
> 
> The patch also fixes VM_BUG_ON(PageSlab(page)) that could happen in
> earlier kernels in the same scenario on architectures without cache
> coherence when CONFIG_DEBUG_VM is enabled - so it should be backported to
> stable kernels.
> 
> 
> In the old kernels, the function page_mapping is placed in
> include/linux/mm.h, so you should modify the patch accordingly when
> backporting it.
> 
> 
> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
> Cc: stable@vger.kernel.org
> 
> ---
>  mm/util.c |    5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> Index: linux-3.13-rc6/mm/util.c
> ===================================================================
> --- linux-3.13-rc6.orig/mm/util.c	2014-01-04 00:06:07.000000000 +0100
> +++ linux-3.13-rc6/mm/util.c	2014-01-04 00:24:42.000000000 +0100
> @@ -390,7 +390,10 @@ struct address_space *page_mapping(struc
>  {
>  	struct address_space *mapping = page->mapping;
>  
> -	VM_BUG_ON(PageSlab(page));
> +	/* This happens if someone calls flush_dcache_page on slab page */
> +	if (unlikely(PageSlab(page)))
> +		return NULL;
> +
>  	if (unlikely(PageSwapCache(page))) {
>  		swp_entry_t entry;

I don't think that this is the correct fix. According to cachetlb.txt
flush_(kernel_)dcache_page() is not supposed to be called with a slab
page in the first place.  There is code in the kernel to avoid that
(see for example the discussion in [1] and [2]).

Also on ARM, page_mapping() == NULL results in
flush_(kernel_)dcache_page() assuming that the page is an anon page. 
Consequently, it would flush the slab page, which make no sense.

Thus, I think we either need to add the check to the original caller
of flush_dcache_page() or we allow flush_(kernel_)dcache_page() to be
called with slab pages and put the check there (this has been
proposed by Russell King once [3], but would affect multiple
architectures)

- Simon


[1] https://lkml.org/lkml/2013/10/24/414
[2] https://lkml.org/lkml/2013/10/28/432
[3] https://lkml.org/lkml/2013/10/27/89
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On Linux, only parisc uses a different value for EWOULDBLOCK which
causes a lot of troubles for applications not checking for both values.
Since the hpux compat is long dead, make EWOULDBLOCK behave the same as
all other architectures.

Signed-off-by: Guy Martin  <gmsoft@tuxicoman.be>
---
  arch/parisc/include/uapi/asm/errno.h | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/include/uapi/asm/errno.h 
b/arch/parisc/include/uapi/asm/errno.h
index f3a8aa5..c0ae625 100644
--- a/arch/parisc/include/uapi/asm/errno.h
+++ b/arch/parisc/include/uapi/asm/errno.h
@@ -106,7 +106,7 @@

  #define	EALREADY	244	/* Operation already in progress */
  #define	EINPROGRESS	245	/* Operation now in progress */
-#define	EWOULDBLOCK	246	/* Operation would block (Linux returns EAGAIN) 
*/
+#define	EWOULDBLOCK	EAGAIN	/* Operation would block (Not HPUX 
compliant) */
  #define	ENOTEMPTY	247	/* Directory not empty */
  #define	ENAMETOOLONG	248	/* File name too long */
  #define	ELOOP		249	/* Too many symbolic links encountered */
-- 
1.8.3.2

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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] Make EWOULDBLOCK be equal to EAGAIN on parisc.
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On Thu, Jan 16, 2014 at 11:17 AM, Guy Martin <gmsoft@tuxicoman.be> wrote:
> On Linux, only parisc uses a different value for EWOULDBLOCK which
> causes a lot of troubles for applications not checking for both values.
> Since the hpux compat is long dead, make EWOULDBLOCK behave the same as
> all other architectures.
>
> Signed-off-by: Guy Martin  <gmsoft@tuxicoman.be>
> ---
>  arch/parisc/include/uapi/asm/errno.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/parisc/include/uapi/asm/errno.h
> b/arch/parisc/include/uapi/asm/errno.h
> index f3a8aa5..c0ae625 100644
> --- a/arch/parisc/include/uapi/asm/errno.h
> +++ b/arch/parisc/include/uapi/asm/errno.h
> @@ -106,7 +106,7 @@
>
>  #define        EALREADY        244     /* Operation already in progress */
>  #define        EINPROGRESS     245     /* Operation now in progress */
> -#define        EWOULDBLOCK     246     /* Operation would block (Linux
> returns EAGAIN) */
> +#define        EWOULDBLOCK     EAGAIN  /* Operation would block (Not HPUX
> compliant) */
>  #define        ENOTEMPTY       247     /* Directory not empty */
>  #define        ENAMETOOLONG    248     /* File name too long */
>  #define        ELOOP           249     /* Too many symbolic links
> encountered */

This is an ABI break.

You can't do this without rebuilding userspace.

You need debian an gentoo onboard to do this ABI break.

Cheers,
Carlos.
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] Make EWOULDBLOCK be equal to EAGAIN on parisc.
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On 1/16/2014 3:02 PM, Carlos O'Donell wrote:
> On Thu, Jan 16, 2014 at 11:17 AM, Guy Martin <gmsoft@tuxicoman.be> wrote:
>> On Linux, only parisc uses a different value for EWOULDBLOCK which
>> causes a lot of troubles for applications not checking for both values.
>> Since the hpux compat is long dead, make EWOULDBLOCK behave the same as
>> all other architectures.
>>
>> Signed-off-by: Guy Martin  <gmsoft@tuxicoman.be>
>> ---
>>   arch/parisc/include/uapi/asm/errno.h | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/parisc/include/uapi/asm/errno.h
>> b/arch/parisc/include/uapi/asm/errno.h
>> index f3a8aa5..c0ae625 100644
>> --- a/arch/parisc/include/uapi/asm/errno.h
>> +++ b/arch/parisc/include/uapi/asm/errno.h
>> @@ -106,7 +106,7 @@
>>
>>   #define        EALREADY        244     /* Operation already in progress */
>>   #define        EINPROGRESS     245     /* Operation now in progress */
>> -#define        EWOULDBLOCK     246     /* Operation would block (Linux
>> returns EAGAIN) */
>> +#define        EWOULDBLOCK     EAGAIN  /* Operation would block (Not HPUX
>> compliant) */
>>   #define        ENOTEMPTY       247     /* Directory not empty */
>>   #define        ENAMETOOLONG    248     /* File name too long */
>>   #define        ELOOP           249     /* Too many symbolic links
>> encountered */
> This is an ABI break.
>
> You can't do this without rebuilding userspace.
>
> You need debian an gentoo onboard to do this ABI break.
This would take about a month on Debian, so I'm against.  Various bits 
of kernel code traditionally
return EWOULDBLOCK, so any application code that just checks EWOULDBLOCK 
would fail.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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Subject: Re: [PATCH] Make EWOULDBLOCK be equal to EAGAIN on parisc.
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On Thu, Jan 16, 2014 at 3:49 PM, John David Anglin <dave.anglin@bell.net> wrote:
>> This is an ABI break.
>>
>> You can't do this without rebuilding userspace.
>>
>> You need debian an gentoo onboard to do this ABI break.
>
> This would take about a month on Debian, so I'm against.  Various bits of kernel code traditionally
> return EWOULDBLOCK, so any application code that just checks EWOULDBLOCK would fail.

That's not true if, like all other targets, EWOULDBLOCK == AGAIN. It's
only true on hppa, and that's the problem.

The kernel is completely inconsistent about returning EWOULDBLOCK or
EAGAIN, and the standards do dictate one or the other so the kernel
and glibc are correct to use one or the other to match the standard.

However, user applications are equally sloppy about checking the right value.

Cheers,
Carlos.
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On 01/16/2014 10:05 PM, Carlos O'Donell wrote:
> On Thu, Jan 16, 2014 at 3:49 PM, John David Anglin <dave.anglin@bell.net> wrote:
>>> This is an ABI break.
>>>
>>> You can't do this without rebuilding userspace.
>>>
>>> You need debian an gentoo onboard to do this ABI break.
>>
>> This would take about a month on Debian, so I'm against.  Various bits of kernel code traditionally
>> return EWOULDBLOCK, so any application code that just checks EWOULDBLOCK would fail.
> 
> That's not true if, like all other targets, EWOULDBLOCK == AGAIN. It's
> only true on hppa, and that's the problem.
> 
> The kernel is completely inconsistent about returning EWOULDBLOCK or
> EAGAIN, and the standards do dictate one or the other so the kernel
> and glibc are correct to use one or the other to match the standard.
> 
> However, user applications are equally sloppy about checking the right value.

Guy, do you have actual programs which are currently broken and which don't check for both?
My feeling is, that most programs were fixed, but I might be wrong...

Helge
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From: Mike Frysinger <vapier@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] Make EWOULDBLOCK be equal to EAGAIN on parisc.
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On Thursday 16 January 2014 16:15:33 Helge Deller wrote:
> On 01/16/2014 10:05 PM, Carlos O'Donell wrote:
> > On Thu, Jan 16, 2014 at 3:49 PM, John David Anglin wrote:
> >>> This is an ABI break.
> >>>=20
> >>> You can't do this without rebuilding userspace.
> >>>=20
> >>> You need debian an gentoo onboard to do this ABI break.
> >>=20
> >> This would take about a month on Debian, so I'm against.  Various bits
> >> of kernel code traditionally return EWOULDBLOCK, so any application
> >> code that just checks EWOULDBLOCK would fail.
> >=20
> > That's not true if, like all other targets, EWOULDBLOCK =3D=3D AGAIN. I=
t's
> > only true on hppa, and that's the problem.
> >=20
> > The kernel is completely inconsistent about returning EWOULDBLOCK or
> > EAGAIN, and the standards do dictate one or the other so the kernel
> > and glibc are correct to use one or the other to match the standard.
> >=20
> > However, user applications are equally sloppy about checking the right
> > value.
>=20
> Guy, do you have actual programs which are currently broken and which don=
't
> check for both? My feeling is, that most programs were fixed, but I might
> be wrong...

my guess is memcached:
https://bugs.gentoo.org/show_bug.cgi?id=3D498262
=2Dmike

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From - Thu Nov 08 21:10:05 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: Re: [PATCH] Make EWOULDBLOCK be equal to EAGAIN on parisc.
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Cc: Carlos O'Donell <carlos@systemhalted.org>,
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On 2014-01-16 22:15, Helge Deller wrote:
> On 01/16/2014 10:05 PM, Carlos O'Donell wrote:
>> On Thu, Jan 16, 2014 at 3:49 PM, John David Anglin 
>> <dave.anglin@bell.net> wrote:
>>>> This is an ABI break.
>>>> 
>>>> You can't do this without rebuilding userspace.
>>>> 
>>>> You need debian an gentoo onboard to do this ABI break.
>>> 
>>> This would take about a month on Debian, so I'm against.  Various 
>>> bits of kernel code traditionally
>>> return EWOULDBLOCK, so any application code that just checks 
>>> EWOULDBLOCK would fail.
>> 
>> That's not true if, like all other targets, EWOULDBLOCK == AGAIN. It's
>> only true on hppa, and that's the problem.
>> 
>> The kernel is completely inconsistent about returning EWOULDBLOCK or
>> EAGAIN, and the standards do dictate one or the other so the kernel
>> and glibc are correct to use one or the other to match the standard.
>> 
>> However, user applications are equally sloppy about checking the right 
>> value.
> 
> Guy, do you have actual programs which are currently broken and which
> don't check for both?
> My feeling is, that most programs were fixed, but I might be wrong...

As Mike pointed out, memcached had a test which failed only on hppa.
Fixing the test is easy but that lead me to check the code of 
libmemcache,
client counterpart of memcached. The same problem was there too. Only
EAGAIN was being checked.

I agree that this change will break the ABI. However it will only affect
applications checking solely for EWOULDBLOCK and not EAGAIN. I believe 
that
on linux, most if not all applications check for EAGAIN and few check 
for
EWOULDBLOCK as well.

The problem currently is that finding out which applications are not 
checking
for EWOULDBLOCK requires analyzing the code. Most of the time, failure 
to
correctly check for EWOULDBLOCK will be quite stealth depending on how 
the
application handles it.

So despite the fact that this will break the ABI, the breakage should be 
minimal
if non existent while it will fix a lot of hard to find and identify 
issues.

   Guy


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From - Thu Nov 08 21:10:05 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] Make EWOULDBLOCK be equal to EAGAIN on parisc.
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Cc: Helge Deller <deller@gmx.de>,
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On 17-Jan-14, at 3:55 AM, Guy Martin wrote:

> So despite the fact that this will break the ABI, the breakage  
> should be minimal
> if non existent while it will fix a lot of hard to find and identify  
> issues.

Have you tested the change?

Dave
--
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From - Thu Nov 08 21:10:05 2018
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On Fri, Jan 17, 2014 at 9:01 AM, John David Anglin <dave.anglin@bell.net> wrote:
>
> On 17-Jan-14, at 3:55 AM, Guy Martin wrote:
>
>> So despite the fact that this will break the ABI, the breakage should be minimal
>> if non existent while it will fix a lot of hard to find and identify issues.
>
>
> Have you tested the change?

This is a good point.

If you can make this change and still boot your system with a rebuilt
kernel, then there is hope that your claims are true.

The basic argument would be:
* Change kernel header to make EWOULDBLOCK == AGAIN.
* Rebuild kernel.
* Boot system.
* Verify system is semifunctional, networking, IO, disk, XVnc, etc.

That would go a long way to showing that most of the system works.

Then if you emerge the world against those changed headers and it goes
well, then we might be talking about it being a low-impact change.

Cheers,
Carlos.
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: Re: [PATCH] Make EWOULDBLOCK be equal to EAGAIN on parisc.
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Cc: John David Anglin <dave.anglin@bell.net>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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On 2014-01-17 15:08, Carlos O'Donell wrote:
> On Fri, Jan 17, 2014 at 9:01 AM, John David Anglin 
> <dave.anglin@bell.net> wrote:
>> 
>> On 17-Jan-14, at 3:55 AM, Guy Martin wrote:
>> 
>>> So despite the fact that this will break the ABI, the breakage should 
>>> be minimal
>>> if non existent while it will fix a lot of hard to find and identify 
>>> issues.
>> 
>> 
>> Have you tested the change?
> 
> This is a good point.
> 
> If you can make this change and still boot your system with a rebuilt
> kernel, then there is hope that your claims are true.
> 
> The basic argument would be:
> * Change kernel header to make EWOULDBLOCK == AGAIN.
> * Rebuild kernel.
> * Boot system.
> * Verify system is semifunctional, networking, IO, disk, XVnc, etc.
> 
> That would go a long way to showing that most of the system works.
> 
> Then if you emerge the world against those changed headers and it goes
> well, then we might be talking about it being a low-impact change.
> 

I've rebuilt the kernel with the change and I can't see any impact.
NFS/SSH works fine and upgrading a few packages doesn't show any issue.
I don't have X on that box.


   Guy

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Subject: [PATCH 11/41] parisc: Replace __get_cpu_var uses for address calculation
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Convert to the use of this_cpu_ptr().

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Christoph Lameter <cl@linux.com>

Index: linux/arch/parisc/lib/memcpy.c
===================================================================
--- linux.orig/arch/parisc/lib/memcpy.c	2013-12-02 16:07:49.844632157 -0600
+++ linux/arch/parisc/lib/memcpy.c	2013-12-02 16:07:49.844632157 -0600
@@ -470,7 +470,7 @@ static unsigned long pa_memcpy(void *dst
 		return 0;
 
 	/* if a load or store fault occured we can get the faulty addr */
-	d = &__get_cpu_var(exception_data);
+	d = this_cpu_ptr(&exception_data);
 	fault_addr = d->fault_addr;
 
 	/* error in load or store? */
Index: linux/arch/parisc/mm/fault.c
===================================================================
--- linux.orig/arch/parisc/mm/fault.c	2013-12-02 16:07:49.844632157 -0600
+++ linux/arch/parisc/mm/fault.c	2013-12-02 16:07:49.844632157 -0600
@@ -151,7 +151,7 @@ int fixup_exception(struct pt_regs *regs
 	fix = search_exception_tables(regs->iaoq[0]);
 	if (fix) {
 		struct exception_data *d;
-		d = &__get_cpu_var(exception_data);
+		d = this_cpu_ptr(&exception_data);
 		d->fault_ip = regs->iaoq[0];
 		d->fault_space = regs->isr;
 		d->fault_addr = regs->ior;

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From: Grant Grundler <grantgrundler@gmail.com>
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Subject: Re: Kconfig Dependencies in Linux
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On Fri, Jan 17, 2014 at 12:05 PM, Sarah Nadi <snadi@uwaterloo.ca> wrote:
> Hi Grant,

Sarah,
If you have specific questions about Kconfig files (and the rules they
embed), my advice is to ask on linux kernel mailing list. You'll get
the answers you are looking for.

For specific projects that use the kernel, like parisc-linux or Chrome
OS (my day job), ask on those respective mailing lists:
     linux-parisc@vger.kernel.org (cc'd)
     https://groups.google.com/a/chromium.org/forum/#!forum/chromium-os-dev

Asking random people listed in MAINTAINERS is just going to get you a
lot of negative feedback.

cheers,
grant

>
> I am a researcher at the University of Waterloo, Ontario, Canada. As part of
> a research team with members from both the University of Waterloo and
> Carnegie Mellon University, USA, we are interested in creating automated
> tools for large configurable software. We are currently working on
> automatically reverse engineering configuration constraints from code to
> provide tools that support automatic creation of Kconfig dependencies (i.e.,
> the variability model) as well as consistency checks between the code and
> the variability model. We have tested our infrastructure on four different
> open-source systems. For the Linux kernel, we have already been able to
> automatically extract 31% of the Kconfig constraints from the code. We are
> currently investigating the cases we could not automatically recover to
> understand how variability modeling is used in practice, and what kind of
> constraints do developers usually enforce.
>
> To improve our tools, and to better understand the configuration constraints
> enforced, we are interested in interviewing developers who have worked with
> Kconfig.The interview would take only around 15-20 minutes of your time
> where we would discuss your related development practices, and some examples
> of Kconfig constraints we could not automatically detect. Interviews can be
> conducted over the phone or Skype. Alternatively, I can also email you a
> questionnaire if you would prefer that.
>
> Please let me know if you would be willing to participate.
>
>
> Thanks,
>
> Sarah Nadi
> PhD candidate
> University of Waterloo, ON, Canada
> http://swag.uwaterloo.ca/~snadi
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Hi Grant,

Thanks for your feedback. I was actually specifically targetting 
developers who have committed to the Kconfig files before as far as I 
could tell from the  kernel's git repository rather than randomly 
picking people listed in MAINTAINERS. I do have questions about certain 
dependencies, but I also want to get the general intuition behind when a 
Kconfig dependency is enforced, and if there is external/domain 
knowledge that comes into play. This is why I was interested in talking 
to developers.

In all cases, I do appreciate the advice!

Sarah

On 14-01-17 03:55 PM, Grant Grundler wrote:
> On Fri, Jan 17, 2014 at 12:05 PM, Sarah Nadi <snadi@uwaterloo.ca> wrote:
>> Hi Grant,
> Sarah,
> If you have specific questions about Kconfig files (and the rules they
> embed), my advice is to ask on linux kernel mailing list. You'll get
> the answers you are looking for.
>
> For specific projects that use the kernel, like parisc-linux or Chrome
> OS (my day job), ask on those respective mailing lists:
>       linux-parisc@vger.kernel.org (cc'd)
>       https://groups.google.com/a/chromium.org/forum/#!forum/chromium-os-dev
>
> Asking random people listed in MAINTAINERS is just going to get you a
> lot of negative feedback.
>
> cheers,
> grant
>

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On 01/17/2014 04:11 PM, Guy Martin wrote:
> On 2014-01-17 15:08, Carlos O'Donell wrote:
>> On Fri, Jan 17, 2014 at 9:01 AM, John David Anglin
>> <dave.anglin@bell.net> wrote:
>>> 
>>> On 17-Jan-14, at 3:55 AM, Guy Martin wrote:
>>> 
>>>> So despite the fact that this will break the ABI, the breakage
>>>> should be minimal if non existent while it will fix a lot of
>>>> hard to find and identify issues.
>>> 
>>> 
>>> Have you tested the change?
>> 
>> This is a good point.
>> 
>> If you can make this change and still boot your system with a
>> rebuilt kernel, then there is hope that your claims are true.
>> 
>> The basic argument would be: * Change kernel header to make
>> EWOULDBLOCK == AGAIN. * Rebuild kernel. * Boot system. * Verify
>> system is semifunctional, networking, IO, disk, XVnc, etc.
>> 
>> That would go a long way to showing that most of the system works.
>> 
>> Then if you emerge the world against those changed headers and it
>> goes well, then we might be talking about it being a low-impact
>> change.
>> 
> 
> I've rebuilt the kernel with the change and I can't see any impact. 
> NFS/SSH works fine and upgrading a few packages doesn't show any
> issue. I don't have X on that box.


Just a comment:
If we do an ABI break, we maybe should take other topics into account at the same time as well, e.g.
- increasing number of signals for systemd
- dropping some HP-UX signals
- maybe something needed to better support 64bit userspace ?
- ...

Helge
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Subject: Issue with =?UTF-8?Q?pata=5Fsil=36=38=30?=
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Hi,


I tried to switch to the ATA drivers but I keep getting a panic whenever 
I load the pata_sil680 module on my C8000.


Kconfig : http://bpaste.net/show/170067/
Kver : 3.12.8-gentoo

This is the backtrace :
insmoterminator ~ # insmod pata_sil680.ko
pata_sil680 0000:60:02.0: version 0.4.9
pata_sil680 0000:60:02.0: sil680: BA5_EN = 1 clock = 00
pata_sil680 0000:60:02.0: sil680: BA5_EN = 1 clock = 10
sil680: 133MHz clock.
Backtrace:
  [<00000000401ad0c4>] handle_percpu_irq+0xbc/0xf8
  [<00000000401a62c4>] generic_handle_irq+0x4c/0x68
  [<00000000401062a4>] syscall_do_resched+0x28/0x34
  [<000000004011e1f8>] execute_on_irq_stack+0x70/0xb8
  [<000000004019486c>] enqueue_task_fair+0x5ac/0xbd0
  [<0000000040188ec8>] check_preempt_curr+0x98/0xc8
  [<0000000040188f34>] ttwu_do_wakeup+0x3c/0xd0
  [<0000000040189184>] ttwu_do_activate.constprop.68+0xbc/0xd8
  [<000000004018c2b8>] try_to_wake_up+0x238/0x450
  [<000000004017ff8c>] __raw_notifier_call_chain+0x2c/0x40
  [<000000004017ffd0>] raw_notifier_call_chain+0x30/0x48
  [<00000000401b0f74>] timekeeping_update.constprop.9+0x5c/0xe0
  [<0000000040188f34>] ttwu_do_wakeup+0x3c/0xd0
  [<0000000040189184>] ttwu_do_activate.constprop.68+0xbc/0xd8
  [<000000004018c2b8>] try_to_wake_up+0x238/0x450
  [<000000004018c4fc>] default_wake_function+0x2c/0x40
Bad Address (null pointer deref?): Code=26 regs=0000000041f77350 
(Addr=0000000000000000)
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.12.8-gentoo #2
task: 000000007fc887e0 ti: 000000007fcc4000 task.ti: 000000007fcc4000

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Not tainted
r00-03  000000ff0804ff0e 0000000040987e60 00000000401ad0c4 
0000000041f77250
r04-07  0000000040970660 0000000000000000 0000000000000000 
0000000041f77320
r08-11  0000000000000047 00000000407c4880 0000000000000004 
0000000000000001
r12-15  0000000040889a90 0000000000000047 0000000000000000 
0000000000000001
r16-19  000000007fcc4250 000000000000001a 0000000040889a90 
0000000001559000
r20-23  00000000407dec50 0000000041f7b020 fffc000000000000 
feffffffffffffff
r24-27  0000000041f77040 0000000000000000 00000000407c4880 
0000000040970660
r28-31  fefc000000000000 0000000041f77220 0000000041f77350 
0100000000000000
sr00-03  0000000000217000 0000000000217000 0000000000000000 
0000000000217000
sr04-07  0000000000000000 0000000000000000 0000000000000000 
0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401a7234 
00000000401a7238
  IIR: 0dc010dc    ISR: 0000000000000000  IOR: 0000000000000000
  CPU:        1   CR30: 000000007fcc4000 CR31: ffffe1691b8f2119
  ORIG_R28: 0000000040189184
  IAOQ[0]: handle_irq_event_percpu+0x9c/0x378
  IAOQ[1]: handle_irq_event_percpu+0xa0/0x378
  RP(r2): handle_percpu_irq+0xbc/0xf8


If I hack the driver to enable MMIO, I have the following backtrace :
scsi2 : pata_sil680
scsi3 : pata_sil680
ata1: PATA max UDMA/133 irq 71
ata2: PATA max UDMA/133 irq 71
scsi 3:0:0:0: CD-ROM            HL-DT-ST DVDRAM GSA-4082B A208 PQ: 0 
ANSI: 5
ata2.00: configured for UDMA/66
sr0: scsi3-mmc drive: 32x/32x writer dvd-ram cd/rw xa/form2 cdda tray
cdrom: Uniform CD-ROM driver Revision: 3.20
sr 3:0:0:0: Attached scsi CD-ROM sr0
sr 3:0:0:0: Attached scsi generic sg1 type 5
  [<00000000401ad0c4>] handle_percpu_irq+0xbc/0xf8
  [<00000000401a62c4>] generic_handle_irq+0x4c/0x68
  [<00000000401062a4>] syscall_do_resched+0x28/0x34


With MMIO, it goes a little bit further as it detects the drive 
correctly but eventually fails the same way.

As far as I understand the backtrace, it would seem that an IRQ handler 
function pointer is set to NULL or some NULL pointer deref occurs in the 
IRQ handler.
Also, this is not the original DVD drive from the C8000. I replaced it 
with a DVD burner.

How idea what can be the issue ?

Thanks,
   Guy




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Hi Guy,

On 01/20/2014 01:24 PM, Guy Martin wrote:
> I tried to switch to the ATA drivers but I keep getting a panic
> whenever I load the pata_sil680 module on my C8000 
> 
> Kconfig : http://bpaste.net/show/170067/
> Kver : 3.12.8-gentoo
> 
> This is the backtrace :
> insmoterminator ~ # insmod pata_sil680.ko
> pata_sil680 0000:60:02.0: version 0.4.9
> pata_sil680 0000:60:02.0: sil680: BA5_EN = 1 clock = 00
> pata_sil680 0000:60:02.0: sil680: BA5_EN = 1 clock = 10
> sil680: 133MHz clock.
> Backtrace:
>  [<00000000401ad0c4>] handle_percpu_irq+0xbc/0xf8
>  [<00000000401a62c4>] generic_handle_irq+0x4c/0x68
>  [<00000000401062a4>] syscall_do_resched+0x28/0x34
>  [<000000004011e1f8>] execute_on_irq_stack+0x70/0xb8
....
> 
> If I hack the driver to enable MMIO, I have the following backtrace :
> scsi2 : pata_sil680
> scsi3 : pata_sil680
> ata1: PATA max UDMA/133 irq 71
> ata2: PATA max UDMA/133 irq 71
> scsi 3:0:0:0: CD-ROM            HL-DT-ST DVDRAM GSA-4082B A208 PQ: 0 ANSI: 5
> ata2.00: configured for UDMA/66
> sr0: scsi3-mmc drive: 32x/32x writer dvd-ram cd/rw xa/form2 cdda tray
> cdrom: Uniform CD-ROM driver Revision: 3.20
> sr 3:0:0:0: Attached scsi CD-ROM sr0
> sr 3:0:0:0: Attached scsi generic sg1 type 5
>  [<00000000401ad0c4>] handle_percpu_irq+0xbc/0xf8
>  [<00000000401a62c4>] generic_handle_irq+0x4c/0x68
>  [<00000000401062a4>] syscall_do_resched+0x28/0x34
> 
> 
> With MMIO, it goes a little bit further as it detects the drive correctly but eventually fails the same way.
> 
> As far as I understand the backtrace, it would seem that an IRQ
> handler function pointer is set to NULL or some NULL pointer deref
> occurs in the IRQ handler. Also, this is not the original DVD drive
> from the C8000. I replaced it with a DVD burner.> 
> How idea what can be the issue ?

I'm just guessing here since I would need to test myself.
But James Bottomley found once, that the secondary port of the cmd64x controller
was not completely wired physically up on parisc.
He posted a patch series here:  
http://www.spinics.net/lists/linux-ide/msg40816.html
Maybe there is some similarity for pata_sil680 too, esp. since it seems from
the log above that you connected your DVD drive to the secondary port (scsi3).
What happens if you connect it to scsi2/the first pata port instead? 

Helge
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From - Thu Nov 08 21:10:05 2018
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Hi Helge,

On 2014-01-20 21:12, Helge Deller wrote:
> Hi Guy,
> 
> On 01/20/2014 01:24 PM, Guy Martin wrote:
>> I tried to switch to the ATA drivers but I keep getting a panic
>> whenever I load the pata_sil680 module on my C8000


>> With MMIO, it goes a little bit further as it detects the drive 
>> correctly but eventually fails the same way.
>> 
>> As far as I understand the backtrace, it would seem that an IRQ
>> handler function pointer is set to NULL or some NULL pointer deref
>> occurs in the IRQ handler. Also, this is not the original DVD drive
>> from the C8000. I replaced it with a DVD burner.>
>> How idea what can be the issue ?
> 
> I'm just guessing here since I would need to test myself.
> But James Bottomley found once, that the secondary port of the cmd64x 
> controller
> was not completely wired physically up on parisc.
> He posted a patch series here:
> http://www.spinics.net/lists/linux-ide/msg40816.html
> Maybe there is some similarity for pata_sil680 too, esp. since it seems 
> from
> the log above that you connected your DVD drive to the secondary port 
> (scsi3).
> What happens if you connect it to scsi2/the first pata port instead?

I have not checked how it is connected physically yet. It's probably the 
jumper on the drive set for slave.

However, this drive works fine with the old IDE siimage driver.
Additionally, if I found out that if I hack the driver to only probe the 
first drive,
then unload it, change it to probe both drives and reload it, it is 
detected correctly.


   Guy

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From: Paul Gortmaker <paul.gortmaker@windriver.com>
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Subject: [PATCH] parisc: don't use module_init for non-modular core pdc_cons code
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The pdc_cons.c code is always built in.  It will never be modular,
so using module_init as an alias for __initcall is rather
misleading.

Fix this up now, so that we can relocate module_init from
init.h into module.h in the future.  If we don't do this, we'd
have to add module.h to obviously non-modular code, and that
would be a worse thing.

Direct use of __initcall is discouraged, vs prioritized ones.
Use of device_initcall is consistent with what __initcall
maps onto, and hence does not change the init order, making the
impact of this change zero.   Should someone with real hardware
for boot testing want to change it later to arch_initcall or
something different, they can do that at a later date.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---

[patch will be added to init cleanup series:
   http://git.kernel.org/cgit/linux/kernel/git/paulg/init.git/  ]

 arch/parisc/kernel/pdc_cons.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index d5cae55195ec..10a5ae9553fd 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -207,8 +207,7 @@ static int __init pdc_console_tty_driver_init(void)
 
 	return 0;
 }

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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: [PATCH] parisc: report inequivalent aliases only for writeable
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Hi

Here I'm sending a fix for parisc for Debian 5 userspace.

I'm just curious - why are those kmap_atomic and kunmap_atomic overrides 
needed while other architectures with virtually indexed caches (such as 
sparc) don't override these functions? It is that the other architectures 
flush cache at differnet points where parisc doesn't flush it?

Mikulas


From: Mikulas Patocka <mpatocka@redhat.com>

The patch f8dae00684d678afa13041ef170cecfd1297ed40 breaks Debian 5
userspace. After application of the patch, you get a lot of INEQUIVALENT
ALIASES messages on various dynamic libraries - so many that the system is
unbootable.

This patch changes it so that INEQUIVALENT ALIASES are only reported for
writeable mappings. PA-RISC specification allows inequivalent aliases for
read-only mappings, so there's no need to report them as an error.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org

---
 arch/parisc/kernel/cache.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-3.13/arch/parisc/kernel/cache.c
===================================================================
--- linux-3.13.orig/arch/parisc/kernel/cache.c	2014-01-20 21:40:18.000000000 +0100
+++ linux-3.13/arch/parisc/kernel/cache.c	2014-01-20 21:43:23.000000000 +0100
@@ -325,7 +325,7 @@ void flush_dcache_page(struct page *page
 		flush_tlb_page(mpnt, addr);
 		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
+			if (old_addr && unlikely(mapping->i_mmap_writable != 0))
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
 			old_addr = addr;
 		}
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Subject: Re: [PATCH] parisc: don't use module_init for non-modular core
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On Wed, 2014-01-22 at 13:19 -0500, Paul Gortmaker wrote:
> The pdc_cons.c code is always built in.  It will never be modular,
> so using module_init as an alias for __initcall is rather
> misleading.
> 
> Fix this up now, so that we can relocate module_init from
> init.h into module.h in the future.  If we don't do this, we'd
> have to add module.h to obviously non-modular code, and that
> would be a worse thing.

I don't buy this.  We've already had an argument about using MODULE_
tags in non-modular code here:

http://marc.info/?t=138947344500007

The consensus was that we'd continue to do so, so that would seem to
invalidate the rationale for doing this patch set.

Without the rationale, this is churn for no gain, so I'd rather not do
it.

Thanks,

James


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On Wed, 2014-01-22 at 14:11 -0500, Mikulas Patocka wrote:
[no comment on the merits of the patch, just the wording of the change
log]
> This patch changes it so that INEQUIVALENT ALIASES are only reported for
> writeable mappings. PA-RISC specification allows inequivalent aliases for
> read-only mappings, so there's no need to report them as an error.

No, it doesn't.  The spec says no inequivalent aliases at all for
certain types of CPU (that was the cause of the inability to boot on the
CPU with the combined PIPT/VIPT cache) ... we believe we skirted the
requirements with some judicious flushing but we can't say it was
supported by the docs.

James



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Subject: Re: [PATCH] parisc: don't use module_init for non-modular core pdc_cons
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On 14-01-22 02:20 PM, James Bottomley wrote:
> On Wed, 2014-01-22 at 13:19 -0500, Paul Gortmaker wrote:
>> The pdc_cons.c code is always built in.  It will never be modular,
>> so using module_init as an alias for __initcall is rather
>> misleading.
>>
>> Fix this up now, so that we can relocate module_init from
>> init.h into module.h in the future.  If we don't do this, we'd
>> have to add module.h to obviously non-modular code, and that
>> would be a worse thing.
> 
> I don't buy this.  We've already had an argument about using MODULE_
> tags in non-modular code here:
> 
> http://marc.info/?t=138947344500007
> 
> The consensus was that we'd continue to do so, so that would seem to
> invalidate the rationale for doing this patch set.
> 
> Without the rationale, this is churn for no gain, so I'd rather not do
> it.

Hi James,

Thanks for the link.  Here is another one.

https://lkml.org/lkml/2014/1/21/434

In there I explain the rationale for doing this and what value add we
get from it.  Perhaps you'll say those things aren't important, and
then I guess we'll have to agree to disagree then... but I hope not.

Thanks,
Paul.
--

> 
> Thanks,
> 
> James
> 
> 
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Subject: Re: [PATCH] parisc: don't use module_init for non-modular core
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On Wed, 2014-01-22 at 14:33 -0500, Paul Gortmaker wrote:
> On 14-01-22 02:20 PM, James Bottomley wrote:
> > On Wed, 2014-01-22 at 13:19 -0500, Paul Gortmaker wrote:
> >> The pdc_cons.c code is always built in.  It will never be modular,
> >> so using module_init as an alias for __initcall is rather
> >> misleading.
> >>
> >> Fix this up now, so that we can relocate module_init from
> >> init.h into module.h in the future.  If we don't do this, we'd
> >> have to add module.h to obviously non-modular code, and that
> >> would be a worse thing.
> > 
> > I don't buy this.  We've already had an argument about using MODULE_
> > tags in non-modular code here:
> > 
> > http://marc.info/?t=138947344500007
> > 
> > The consensus was that we'd continue to do so, so that would seem to
> > invalidate the rationale for doing this patch set.
> > 
> > Without the rationale, this is churn for no gain, so I'd rather not do
> > it.
> 
> Hi James,
> 
> Thanks for the link.  Here is another one.
> 
> https://lkml.org/lkml/2014/1/21/434
> 
> In there I explain the rationale for doing this and what value add we
> get from it.  Perhaps you'll say those things aren't important, and
> then I guess we'll have to agree to disagree then... but I hope not.

Well, OK, so 1 is covered by the link I sent.  3 is an EDONTCARE because
we don't care when the console is initialised as long as it is. Your
reason 2 I'm not sure I understand.  module_exit() functions are
automatically discarded by the linker scripts ... if we have a problem
with reference to code in them it will cause a link failure.

I'm grateful for dumping all the spurious section mismatches caused by
HOTPLUG, I really am, but I'm seeing less benefit to this code churn.

James


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On Wed, 22 Jan 2014, James Bottomley wrote:

> On Wed, 2014-01-22 at 14:11 -0500, Mikulas Patocka wrote:
> [no comment on the merits of the patch, just the wording of the change
> log]
> > This patch changes it so that INEQUIVALENT ALIASES are only reported for
> > writeable mappings. PA-RISC specification allows inequivalent aliases for
> > read-only mappings, so there's no need to report them as an error.
> 
> No, it doesn't.  The spec says no inequivalent aliases at all for
> certain types of CPU (that was the cause of the inability to boot on the
> CPU with the combined PIPT/VIPT cache) ... we believe we skirted the
> requirements with some judicious flushing but we can't say it was
> supported by the docs.
> 
> James

A citation from Parisc 2.0 specification, Appendix F, section Address 
Aliasing:

"Software is allowed to have any number of read-only non-equivalently 
aliased translations to a physical page, as long as there are no other 
translations to the page. This is referred to as read-only non-equivalent 
aliasing."

Mikulas
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On Wed, 2014-01-22 at 15:39 -0500, Mikulas Patocka wrote:
> 
> On Wed, 22 Jan 2014, James Bottomley wrote:
> 
> > On Wed, 2014-01-22 at 14:11 -0500, Mikulas Patocka wrote:
> > [no comment on the merits of the patch, just the wording of the change
> > log]
> > > This patch changes it so that INEQUIVALENT ALIASES are only reported for
> > > writeable mappings. PA-RISC specification allows inequivalent aliases for
> > > read-only mappings, so there's no need to report them as an error.
> > 
> > No, it doesn't.  The spec says no inequivalent aliases at all for
> > certain types of CPU (that was the cause of the inability to boot on the
> > CPU with the combined PIPT/VIPT cache) ... we believe we skirted the
> > requirements with some judicious flushing but we can't say it was
> > supported by the docs.
> > 
> > James
> 
> A citation from Parisc 2.0 specification, Appendix F, section Address 
> Aliasing:
> 
> "Software is allowed to have any number of read-only non-equivalently 
> aliased translations to a physical page, as long as there are no other 
> translations to the page. This is referred to as read-only non-equivalent 
> aliasing."

The kernel alias is read/write.

James



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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: Re: [PATCH] parisc: report inequivalent aliases only for writeable
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On Wed, 22 Jan 2014, James Bottomley wrote:

> On Wed, 2014-01-22 at 15:39 -0500, Mikulas Patocka wrote:
> > 
> > On Wed, 22 Jan 2014, James Bottomley wrote:
> > 
> > > On Wed, 2014-01-22 at 14:11 -0500, Mikulas Patocka wrote:
> > > [no comment on the merits of the patch, just the wording of the change
> > > log]
> > > > This patch changes it so that INEQUIVALENT ALIASES are only reported for
> > > > writeable mappings. PA-RISC specification allows inequivalent aliases for
> > > > read-only mappings, so there's no need to report them as an error.
> > > 
> > > No, it doesn't.  The spec says no inequivalent aliases at all for
> > > certain types of CPU (that was the cause of the inability to boot on the
> > > CPU with the combined PIPT/VIPT cache) ... we believe we skirted the
> > > requirements with some judicious flushing but we can't say it was
> > > supported by the docs.
> > > 
> > > James
> > 
> > A citation from Parisc 2.0 specification, Appendix F, section Address 
> > Aliasing:
> > 
> > "Software is allowed to have any number of read-only non-equivalently 
> > aliased translations to a physical page, as long as there are no other 
> > translations to the page. This is referred to as read-only non-equivalent 
> > aliasing."
> 
> The kernel alias is read/write.
> 
> James

But the kernel alias shouldn't be loaded in the TLB for dynamic libraries 
that are mapped read-only.

Mikulas
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] parisc: report inequivalent aliases only for writeable
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org
To: Mikulas Patocka <mpatocka@redhat.com>,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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On 1/22/2014 4:31 PM, Mikulas Patocka wrote:
>
> On Wed, 22 Jan 2014, James Bottomley wrote:
>
>> On Wed, 2014-01-22 at 15:39 -0500, Mikulas Patocka wrote:
>>> On Wed, 22 Jan 2014, James Bottomley wrote:
>>>
>>>> On Wed, 2014-01-22 at 14:11 -0500, Mikulas Patocka wrote:
>>>> [no comment on the merits of the patch, just the wording of the change
>>>> log]
>>>>> This patch changes it so that INEQUIVALENT ALIASES are only reported for
>>>>> writeable mappings. PA-RISC specification allows inequivalent aliases for
>>>>> read-only mappings, so there's no need to report them as an error.
>>>> No, it doesn't.  The spec says no inequivalent aliases at all for
>>>> certain types of CPU (that was the cause of the inability to boot on the
>>>> CPU with the combined PIPT/VIPT cache) ... we believe we skirted the
>>>> requirements with some judicious flushing but we can't say it was
>>>> supported by the docs.
>>>>
>>>> James
>>> A citation from Parisc 2.0 specification, Appendix F, section Address
>>> Aliasing:
>>>
>>> "Software is allowed to have any number of read-only non-equivalently
>>> aliased translations to a physical page, as long as there are no other
>>> translations to the page. This is referred to as read-only non-equivalent
>>> aliasing."
>> The kernel alias is read/write.
>>
>> James
> But the kernel alias shouldn't be loaded in the TLB for dynamic libraries
> that are mapped read-only.
The majority messages occur because of a binutils bug that was fixed 
several years ago.
There's a non equivalent mapping between the last code page and the 
start of writable
data in almost every application and shared library in Debian 5. This is 
fixed in the current
Debian unstable and Gentoo.  So, I recommend updating.

When the user aliases are re-enabled, we have the following situation 
when  non equivalent
aliases exist:

"All other uses of non-equivalent aliasing (including simultaneously 
enabling multiple non-equivalently
aliased translations where one or more allow for write access) are 
prohibited, and can cause machine
checks or silent data corruption, including data corruption of unrelated 
memory on unrelated pages."

I'm not sure that we handle correctly handle the case where there are 
only equivalent user aliases.
Calling flush_dcache_page() was a step in this direction but 
unfortunately Helge and I have found
a side effect (zombies run by expect in gcc/gdb testsuites).  I've also 
found another situation where
non equivalent aliases are generated.

I tend to think message should be a debug message.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From: Mikulas Patocka <mpatocka@redhat.com>
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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> The majority messages occur because of a binutils bug that was fixed several
> years ago.
> There's a non equivalent mapping between the last code page and the start of
> writable
> data in almost every application and shared library in Debian 5. This is fixed
> in the current
> Debian unstable and Gentoo.  So, I recommend updating.

So far I haven't had any problems with Debian 5, so I prefer it to the 
constantly changing unstable.

Anyway, the kernel should work with Debian 5 - the only way how to install 
a new parisc system is to install Debian 5 and then switch to 
debian-ports.

> When the user aliases are re-enabled, we have the following situation when
> non equivalent
> aliases exist:
> 
> "All other uses of non-equivalent aliasing (including simultaneously enabling
> multiple non-equivalently
> aliased translations where one or more allow for write access) are prohibited,
> and can cause machine
> checks or silent data corruption, including data corruption of unrelated
> memory on unrelated pages."
> 
> I'm not sure that we handle correctly handle the case where there are only
> equivalent user aliases.
> Calling flush_dcache_page() was a step in this direction but unfortunately
> Helge and I have found
> a side effect (zombies run by expect in gcc/gdb testsuites).  I've also found
> another situation where
> non equivalent aliases are generated.
> 
> I tend to think message should be a debug message.
> 
> Dave
> 
> -- 
> John David Anglin    dave.anglin@bell.net


There is another problem - flushing the cache in kmap_atomic doesn't fix 
inequivalent aliasing because there may be other threads on other CPUs 
touching that page from userspace simultaneously.


I got an idea that it could be possible to implement kmap_atomic without 
flushing the cache - currently, 64-bit pagetables map 2^41 bytes of 
memory. You can hack the kernel tlb handler, so that the addresses above 
2^41 map to the same memory as base kernel space, just shifted by a few 
pages.

Suppose that the following ranges in the kernel address space map to the 
same memory:

0 ... 2^41-1	(the original kernel mapping)
2^41 + 4096 ... 2*2^41 + 4095 (an alias shifted by 4k)
2*2^41 + 8192 ... 3*2^41 + 8191 (an alias shifted by 8k)
3*2^41 + 12288 ... 4*2^41 + 12287 (an alias shifted by 12k)
... etc for all 1024 page aliasings.
1023*2^41 + 4190208 ... 1024*2^41 + 4190207 (an alias shifted by 4M-4k)

Then, kmap_atomic could select a kernel mapping that has the same 
cache-equivalence as the existing userspace mapping and simply return it 
to kernelspace without flushing the cache.

Mikulas
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On 22-Jan-14, at 5:27 PM, Mikulas Patocka wrote:

>> The majority messages occur because of a binutils bug that was  
>> fixed several
>> years ago.
>> There's a non equivalent mapping between the last code page and the  
>> start of
>> writable
>> data in almost every application and shared library in Debian 5.  
>> This is fixed
>> in the current
>> Debian unstable and Gentoo.  So, I recommend updating.
>
> So far I haven't had any problems with Debian 5, so I prefer it to the
> constantly changing unstable.
>
> Anyway, the kernel should work with Debian 5 - the only way how to  
> install
> a new parisc system is to install Debian 5 and then switch to
> debian-ports.

Actually, Helge has a lifimage that allows a new Debian system to be  
setup with debootstrap.
Helge is working toward new installer.  There's documentation on wiki  
on how to do it.

At the moment, we are stuck with the constantly changing unstable.  I  
want to say though
that even if your suggestion below works, there are non equivalent   
aliases in most Debian 5
applications and libraries.  So, even if kernel updates to pages are  
done equivalently,
this might cause issues.

>
>> When the user aliases are re-enabled, we have the following  
>> situation when
>> non equivalent
>> aliases exist:
>>
>> "All other uses of non-equivalent aliasing (including  
>> simultaneously enabling
>> multiple non-equivalently
>> aliased translations where one or more allow for write access) are  
>> prohibited,
>> and can cause machine
>> checks or silent data corruption, including data corruption of  
>> unrelated
>> memory on unrelated pages."
>>
>> I'm not sure that we handle correctly handle the case where there  
>> are only
>> equivalent user aliases.
>> Calling flush_dcache_page() was a step in this direction but  
>> unfortunately
>> Helge and I have found
>> a side effect (zombies run by expect in gcc/gdb testsuites).  I've  
>> also found
>> another situation where
>> non equivalent aliases are generated.
>>
>> I tend to think message should be a debug message.
>>
>> Dave
>>
>> -- 
>> John David Anglin    dave.anglin@bell.net
>
>
> There is another problem - flushing the cache in kmap_atomic doesn't  
> fix
> inequivalent aliasing because there may be other threads on other CPUs
> touching that page from userspace simultaneously.

That is the fundamental issue.  In part, it may be the assumptions  
surrounding how
COW is implemented.  I know reverting the kmap part of the change  
works better.
In that implementation, copy_user_page() flushes the from page itself.

I know the above is pretty solid as I ran with it for two weeks  
without any obvious cache issues.

What led us to the kmap flush is that the aio code reads and writes  
the kernel pages.
Is it possible that user access isn't involved there or there's a user  
flush before the aio
operation?

In some sense, this would seem to be a Linux core design problem if  
access
to shared pages isn't controlled.  I imagine various arm variants  
would also break
from these issues.


>
>
> I got an idea that it could be possible to implement kmap_atomic  
> without
> flushing the cache - currently, 64-bit pagetables map 2^41 bytes of
> memory. You can hack the kernel tlb handler, so that the addresses  
> above
> 2^41 map to the same memory as base kernel space, just shifted by a  
> few
> pages.
>
> Suppose that the following ranges in the kernel address space map to  
> the
> same memory:
>
> 0 ... 2^41-1	(the original kernel mapping)
> 2^41 + 4096 ... 2*2^41 + 4095 (an alias shifted by 4k)
> 2*2^41 + 8192 ... 3*2^41 + 8191 (an alias shifted by 8k)
> 3*2^41 + 12288 ... 4*2^41 + 12287 (an alias shifted by 12k)
> ... etc for all 1024 page aliasings.
> 1023*2^41 + 4190208 ... 1024*2^41 + 4190207 (an alias shifted by  
> 4M-4k)
>
> Then, kmap_atomic could select a kernel mapping that has the same
> cache-equivalence as the existing userspace mapping and simply  
> return it
> to kernelspace without flushing the cache.

This is a very interesting suggestion.  I wasn't a aware that the  
kernel mapping
could be controlled in this way.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:10:07 2018
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Hi Mikulas,

On 01/23/2014 03:26 AM, John David Anglin wrote:
> On 22-Jan-14, at 5:27 PM, Mikulas Patocka wrote:
>> Anyway, the kernel should work with Debian 5 - the only way how to install
>> a new parisc system is to install Debian 5 and then switch to
>> debian-ports.
> 
> Actually, Helge has a lifimage that allows a new Debian system to be setup with debootstrap.
> Helge is working toward new installer.  There's documentation on wiki on how to do it.

Installing Debian unstable from debian-ports is fully described here:
https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation
(You will see some inequivalent aliases messages because the lifimage is still based on old binaries)

That's how I installed the debian buildd servers:
http://unstable.buildd.net/index-hppa.html

Helge
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: 3.12.8 is doing nasty things
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I reported that I saw strange things happening after upgrading to 3.12.5. 
Meanwhile I upgraded to 3.12.8 and things became worse. I regularly see 
processes to fail randomly. I can see this as I somethimes get failures in my 
nagios because the SSH connection to the watched host (only the watched one 
runs .8) fails. I then see stuff like this in dmesg:

[723945.604000] do_page_fault() pid=30516 command='sshd' type=15 
address=0x00000000
[723945.604000] CPU: 1 PID: 30516 Comm: sshd Not tainted 3.12.8 #1
[723945.604000] task: 000000023f0eb7c8 ti: 00000002397ac000 task.ti: 
00000002397ac000

[723945.604000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[723945.604000] PSW: 00000000000001001111111100001111 Not tainted
[723945.604000] r00-03  000000ff0004ff0f 0000000040c3dc64 0000000040b63027 
0000000000000000
[723945.604000] r04-07  0000000040c3d464 0000000000000000 000000000008d11c 
0000000000089ca0
[723945.604000] r08-11  000000000008d11c 000000000008991c 000000000008811c 
000000000008811c
[723945.604000] r12-15  000000000008811c 0000000000000000 000000000008811c 
00000000000888a8
[723945.604000] r16-19  000000000006eb1c 000000000006eb3c 000000000006e440 
0000000040c3d464
[723945.604000] r20-23  00000000fb014990 000000004145eb40 0000000000000000 
0000000000000095
[723945.604000] r24-27  00000000fffffff5 0000000040002890 00000000fb014988 
000000000008711c
[723945.604000] r28-31  fffffffffffffffe 0000000000000000 00000000fb014a00 
0000000040b644c3
[723945.604000] sr00-03  0000000006807000 0000000000000000 0000000000000000 
0000000006807000
[723945.604000] sr04-07  0000000006807000 0000000006807000 0000000006807000 
0000000006807000

[723945.604000]       VZOUICununcqcqcqcqcqcrmunTDVZOUI
[723945.604000] FPSR: 00000000000000000000000000000000
[723945.604000] FPER1: 00000000
[723945.604000] fr00-03  0000000000000000 0000000000000000 0000000000000000 
0000000000000000
[723945.604000] fr04-07  41d4b5f44002d0e5 0000000000000000 0000000000000000 
0000000000000000
[723945.604000] fr08-11  0000000000000000 0000000000000000 0000000000000000 
0000000000000000
[723945.604000] fr12-15  41d4b5f44002d0e5 0000000000000000 0000000000000000 
0000000000000000
[723945.604000] fr16-19  0000000000000000 0000000000000000 0000000000000000 
0000000000000000
[723945.604000] fr20-23  0000000000000000 0000000000000000 0000000000469971 
0000000600000000
[723945.604000] fr24-27  0000000034a94675 0000000000000000 0000000000000000 
0000000000000000
[723945.604000] fr28-31  0000000000000000 0000000000000000 0000000000000000 
0000000000000000

[723945.604000] IASQ: 0000000006807000 0000000006807000 IAOQ: 0000000040b63033 
0000000040b63037
[723945.604000]  IIR: 0ca0109c    ISR: 0000000006807000  IOR: 0000000000000000
[723945.604000]  CPU:        1   CR30: 00000002397ac000 CR31: ffffffffffffffff
[723945.604000]  ORIG_R28: 0000000000000000
[723945.604000]  IAOQ[0]: 0000000040b63033
[723945.604000]  IAOQ[1]: 0000000040b63037
[723945.604000]  RP(r2): 0000000040b63027

When I upgraded OpenSSL I also saw an ICE during build, which went away on the 
next try.

I also see a lot of those:

[724507.480000] INEQUIVALENT ALIASES 0x42ed0000 and 0x42ed1000 in file 
libwrap.so.0.7.6

That could be the binutils bug that was mentioned, this file is from 2010. I'll 
rebuild that now to get rid of those warnings.

Next week I'll try 3.13, but since it has the same changes I expect the same 
results.

Eike
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From - Thu Nov 08 21:10:07 2018
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On Fri, 24 Jan 2014 21:44:51 +0100
Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:

> I reported that I saw strange things happening after upgrading to
> 3.12.5. Meanwhile I upgraded to 3.12.8 and things became worse. I
> regularly see processes to fail randomly. I can see this as I
> somethimes get failures in my nagios because the SSH connection to
> the watched host (only the watched one runs .8) fails.

Confirmed with any kernel above 3.12.2 that I cared to test (I didn't
test 3.12.3). The issues vary from illegal instructions to segmentation
faults to double frees in userland, so it's basically a "random" thing.
I can't say it's become "worse" after 3.12.5 (since I haven't kept per
version statistics).


Regards,
     jer
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To: Jeroen Roovers <jer@gentoo.org>,
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On Fri, 24 Jan 2014 22:07:23 +0100
Jeroen Roovers <jer@gentoo.org> wrote:

> On Fri, 24 Jan 2014 21:44:51 +0100
> Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
> 
> > I reported that I saw strange things happening after upgrading to
> > 3.12.5. Meanwhile I upgraded to 3.12.8 and things became worse. I
> > regularly see processes to fail randomly. I can see this as I
> > somethimes get failures in my nagios because the SSH connection to
> > the watched host (only the watched one runs .8) fails.
> 
> Confirmed with any kernel above 3.12.2 that I cared to test (I didn't
> test 3.12.3). The issues vary from illegal instructions to
> segmentation faults to double frees in userland, so it's basically a
> "random" thing. I can't say it's become "worse" after 3.12.5 (since I
> haven't kept per version statistics).


Same here, 3.12.5 was not behaving correctly and 3.12.8 was even worse.
With the later, I also experienced sshd segfault, python threading
segfault/hangs.
I quickly reverted to 3.12.4 which is far more stable.

  Guy

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From: Jeroen Roovers <jer@gentoo.org>
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Subject: [C8000] serial console drops input
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In recent kernels, with the new serial console code for the C8000,
performance is terrible. Typing quickly results in characters getting
dropped (I have no idea where I lose them), pasting results in 9 out of
10 characters being dropped, and I don't see anything on the client
side that could cause this, and I never had this problem with the old
ttyB0 code. While entering a password, some characters never turn up on
the other side and some get echoed back to the client.

Is anyone else seeing this?


Regards,
     jer
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: [C8000] serial console drops input
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Am Samstag, 25. Januar 2014, 05:41:44 schrieben Sie:
> In recent kernels, with the new serial console code for the C8000,
> performance is terrible. Typing quickly results in characters getting
> dropped (I have no idea where I lose them), pasting results in 9 out of
> 10 characters being dropped, and I don't see anything on the client
> side that could cause this, and I never had this problem with the old
> ttyB0 code. While entering a password, some characters never turn up on
> the other side and some get echoed back to the client.
> 
> Is anyone else seeing this?

What I see is that the C3600 now finally sees the kernel/console output of the 
C8000, I also see the login prompt, but typing anything on the C3600 doesn't 
seem to make it to the C8k. So things have improved, I now can actually see 
what's going on on the C8k, but I can't interact with it.

Eike
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [C8000] serial console drops input
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On 25-Jan-14, at 3:20 AM, Rolf Eike Beer wrote:

> Am Samstag, 25. Januar 2014, 05:41:44 schrieben Sie:
>> In recent kernels, with the new serial console code for the C8000,
>> performance is terrible. Typing quickly results in characters getting
>> dropped (I have no idea where I lose them), pasting results in 9  
>> out of
>> 10 characters being dropped, and I don't see anything on the client
>> side that could cause this, and I never had this problem with the old
>> ttyB0 code. While entering a password, some characters never turn  
>> up on
>> the other side and some get echoed back to the client.
>>
>> Is anyone else seeing this?
>
> What I see is that the C3600 now finally sees the kernel/console  
> output of the
> C8000, I also see the login prompt, but typing anything on the C3600  
> doesn't
> seem to make it to the C8k. So things have improved, I now can  
> actually see

Is XON/XOFF enabled in your terminal program?  See c8000 Technical  
Reference
Guide for setup requirements

I'm using standard PC null modem cable from c3750 to c8000 and minicom  
2.7.  It works
fine but it's fairly slow.

Dave
--
John David Anglin	dave.anglin@bell.net



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Subject: Re: [C8000] serial console drops input
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Am Samstag 25 Januar 2014, 11:29:22 schrieb John David Anglin:
> On 25-Jan-14, at 3:20 AM, Rolf Eike Beer wrote:
> > Am Samstag, 25. Januar 2014, 05:41:44 schrieben Sie:
> >> In recent kernels, with the new serial console code for the C8000,
> >> performance is terrible. Typing quickly results in characters getting
> >> dropped (I have no idea where I lose them), pasting results in 9
> >> out of
> >> 10 characters being dropped, and I don't see anything on the client
> >> side that could cause this, and I never had this problem with the old
> >> ttyB0 code. While entering a password, some characters never turn
> >> up on
> >> the other side and some get echoed back to the client.
> >> 
> >> Is anyone else seeing this?
> > 
> > What I see is that the C3600 now finally sees the kernel/console
> > output of the
> > C8000, I also see the login prompt, but typing anything on the C3600
> > doesn't
> > seem to make it to the C8k. So things have improved, I now can
> > actually see
> 
> Is XON/XOFF enabled in your terminal program?  See c8000 Technical
> Reference
> Guide for setup requirements
> 
> I'm using standard PC null modem cable from c3750 to c8000 and minicom
> 2.7.  It works
> fine but it's fairly slow.

Both on and off doesn't make a difference.

One other thing: the serial line from the C8000 to my Sun Fire V240 works 
flawlessly.

Eike
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 25-Jan-14, at 11:34 AM, Rolf Eike Beer wrote:

> Am Samstag 25 Januar 2014, 11:29:22 schrieb John David Anglin:
>> On 25-Jan-14, at 3:20 AM, Rolf Eike Beer wrote:
>>> Am Samstag, 25. Januar 2014, 05:41:44 schrieben Sie:
>>>> In recent kernels, with the new serial console code for the C8000,
>>>> performance is terrible. Typing quickly results in characters  
>>>> getting
>>>> dropped (I have no idea where I lose them), pasting results in 9
>>>> out of
>>>> 10 characters being dropped, and I don't see anything on the client
>>>> side that could cause this, and I never had this problem with the  
>>>> old
>>>> ttyB0 code. While entering a password, some characters never turn
>>>> up on
>>>> the other side and some get echoed back to the client.
>>>>
>>>> Is anyone else seeing this?
>>>
>>> What I see is that the C3600 now finally sees the kernel/console
>>> output of the
>>> C8000, I also see the login prompt, but typing anything on the C3600
>>> doesn't
>>> seem to make it to the C8k. So things have improved, I now can
>>> actually see
>>
>> Is XON/XOFF enabled in your terminal program?  See c8000 Technical
>> Reference
>> Guide for setup requirements
>>
>> I'm using standard PC null modem cable from c3750 to c8000 and  
>> minicom
>> 2.7.  It works
>> fine but it's fairly slow.
>
> Both on and off doesn't make a difference.
>
> One other thing: the serial line from the C8000 to my Sun Fire V240  
> works
> flawlessly.


Same cable?  Does boot output look ok or are characters dropped?
Which kernels specifically (c8000 can c3600)?

Dave
--
John David Anglin	dave.anglin@bell.net



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> > One other thing: the serial line from the C8000 to my Sun Fire V240
> > works
> > flawlessly.
> 
> Same cable?  Does boot output look ok or are characters dropped?
> Which kernels specifically (c8000 can c3600)?

c8000: 3.12.5 minus the mmap patch (the same for 3.12.8)
c3600: 3.12.5

Boot output looks fine. Cables are normal nullmodem. I can interact using 
minicom with the firmware, i.e. typing "BO PRI<return>N<return>" or things 
like that work fine.

Eike
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On Sat, 25 Jan 2014 18:03:17 +0100
Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:

> Boot output looks fine. Cables are normal nullmodem. I can interact
> using minicom with the firmware, i.e. typing "BO
> PRI<return>N<return>" or things like that work fine.

Yes, in the PDC everything still seems fine.

But as early as in the IPL I can't paste a string without
characters dropping (which is how I first noticed the issue, since
that's where I normally do this to select a kernel to boot). So did the
IPL change as well, then?



     jer
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On 1/25/14 10:13 AM, Jeroen Roovers wrote:
> On Sat, 25 Jan 2014 18:03:17 +0100
> Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
>
>> Boot output looks fine. Cables are normal nullmodem. I can interact
>> using minicom with the firmware, i.e. typing "BO
>> PRI<return>N<return>" or things like that work fine.
>
> Yes, in the PDC everything still seems fine.
>
> But as early as in the IPL I can't paste a string without
> characters dropping (which is how I first noticed the issue, since
> that's where I normally do this to select a kernel to boot). So did the
> IPL change as well, then?
>
>
>
>       jer
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
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>
(I probably should have hit reply-all on this before...)

Just as an FYI, I had some of the same behavior when I first set my 
J6750 up with a serial line (null modem cable to a secondary machine)
Usually had to type the p/w 2 or 3 times to get it to 'take' in minicom. 
One thing I *did* notice was the *length* of the null modem cable and 
the proximity of the 2 machines seemed to make a difference (bad cable 
shielding maybe?) Just my 2 cents. (Running Kernel Ver. 3.12.6-2 at the 
moment)

...and like Dave A. mentioned, Xon/Xoff makes a difference too.

Dave L.

P.S. Now that it's up and running, and I usually log in with PUTTY or 
the STIcon graphics console, it's not a problem anymore. :-)
-- 
Dave Land
Land Computer Service  xmechanic@landcomp.net
ICQ: 676030523


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On 1/25/14 12:54 PM, Dave Land wrote:
> On 1/25/14 10:13 AM, Jeroen Roovers wrote:
>> On Sat, 25 Jan 2014 18:03:17 +0100
>> Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
>>
>>> Boot output looks fine. Cables are normal nullmodem. I can interact
>>> using minicom with the firmware, i.e. typing "BO
>>> PRI<return>N<return>" or things like that work fine.
>>
>> Yes, in the PDC everything still seems fine.
>>
>> But as early as in the IPL I can't paste a string without
>> characters dropping (which is how I first noticed the issue, since
>> that's where I normally do this to select a kernel to boot). So did the
>> IPL change as well, then?
>>
>>
>>
>>       jer
>> --
>> To unsubscribe from this list: send the line "unsubscribe
>> linux-parisc" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
>>
> (I probably should have hit reply-all on this before...)
>
> Just as an FYI, I had some of the same behavior when I first set my
> J6750 up with a serial line (null modem cable to a secondary machine)
> Usually had to type the p/w 2 or 3 times to get it to 'take' in minicom.
> One thing I *did* notice was the *length* of the null modem cable and
> the proximity of the 2 machines seemed to make a difference (bad cable
> shielding maybe?) Just my 2 cents. (Running Kernel Ver. 3.12.6-2 at the
> moment)
>
> ...and like Dave A. mentioned, Xon/Xoff makes a difference too.
>
> Dave L.
>
> P.S. Now that it's up and running, and I usually log in with PUTTY or
> the STIcon graphics console, it's not a problem anymore. :-)

One other thing... If you're using the serial line, make sure you don't 
have a monitor or keyboard & mouse hooked to the target machine (I know 
the C8000's are graphics capable and most likely have usb ports for 
keyboard and mouse, the same as my J6750.) This seems to confuse the 
machine in the early setup stages, at least it did make a difference on 
mine.

Dave L.

-- 
Dave Land
Land Computer Service  xmechanic@landcomp.net
ICQ: 676030523


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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [C8000] serial console drops input
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On 25-Jan-14, at 12:13 PM, Jeroen Roovers wrote:

> On Sat, 25 Jan 2014 18:03:17 +0100
> Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
>
>> Boot output looks fine. Cables are normal nullmodem. I can interact
>> using minicom with the firmware, i.e. typing "BO
>> PRI<return>N<return>" or things like that work fine.
>
> Yes, in the PDC everything still seems fine.
>
> But as early as in the IPL I can't paste a string without
> characters dropping (which is how I first noticed the issue, since
> that's where I normally do this to select a kernel to boot). So did  
> the
> IPL change as well, then?


Helge has made some changes to palo but I believe that we are on the  
PDC boot
console (ttyB0) until switch over here:

Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
17: ttyS0 at MMIO 0xfffffff0f05e0800 (irq = 75, base_baud = 115200) is  
a 16550A
console [ttyS0] enabled, bootconsole disabled
console [ttyS0] enabled, bootconsole disabled
18: ttyS1 at MMIO 0xfffffff0f05e2800 (irq = 76, base_baud = 115200) is  
a 16550A

The PDC code is in firmware.

How long is your cable?    There's no shield connection on DB9  
connector.  You just
need to cross transmit and receive data.  Signal ground is straight  
through.

Dave L is correct about USB keyboard and mouse confusing serial  
console support.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Fri, 2014-01-24 at 22:26 +0100, Guy Martin wrote:
> On Fri, 24 Jan 2014 22:07:23 +0100
> Jeroen Roovers <jer@gentoo.org> wrote:
> 
> > On Fri, 24 Jan 2014 21:44:51 +0100
> > Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
> > 
> > > I reported that I saw strange things happening after upgrading to
> > > 3.12.5. Meanwhile I upgraded to 3.12.8 and things became worse. I
> > > regularly see processes to fail randomly. I can see this as I
> > > somethimes get failures in my nagios because the SSH connection to
> > > the watched host (only the watched one runs .8) fails.
> > 
> > Confirmed with any kernel above 3.12.2 that I cared to test (I didn't
> > test 3.12.3). The issues vary from illegal instructions to
> > segmentation faults to double frees in userland, so it's basically a
> > "random" thing. I can't say it's become "worse" after 3.12.5 (since I
> > haven't kept per version statistics).
> 
> 
> Same here, 3.12.5 was not behaving correctly and 3.12.8 was even worse.
> With the later, I also experienced sshd segfault, python threading
> segfault/hangs.
> I quickly reverted to 3.12.4 which is far more stable.

This all sounds like a flushing problem.  I can't confirm with my
pa8800 ... but that could be because the additional pa8800 flushes are
masking the problem.  Could you try bisecting the parisc commits
between .4 and .5 and see if there's a particular cause?

Thanks,

James



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Am Samstag, 25. Januar 2014, 14:30:39 schrieben Sie:
> On Fri, 2014-01-24 at 22:26 +0100, Guy Martin wrote:
> > On Fri, 24 Jan 2014 22:07:23 +0100
> > 
> > Jeroen Roovers <jer@gentoo.org> wrote:
> > > On Fri, 24 Jan 2014 21:44:51 +0100
> > > 
> > > Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
> > > > I reported that I saw strange things happening after upgrading to
> > > > 3.12.5. Meanwhile I upgraded to 3.12.8 and things became worse. I
> > > > regularly see processes to fail randomly. I can see this as I
> > > > somethimes get failures in my nagios because the SSH connection to
> > > > the watched host (only the watched one runs .8) fails.
> > > 
> > > Confirmed with any kernel above 3.12.2 that I cared to test (I didn't
> > > test 3.12.3). The issues vary from illegal instructions to
> > > segmentation faults to double frees in userland, so it's basically a
> > > "random" thing. I can't say it's become "worse" after 3.12.5 (since I
> > > haven't kept per version statistics).
> > 
> > Same here, 3.12.5 was not behaving correctly and 3.12.8 was even worse.
> > With the later, I also experienced sshd segfault, python threading
> > segfault/hangs.
> > I quickly reverted to 3.12.4 which is far more stable.
> 
> This all sounds like a flushing problem.  I can't confirm with my
> pa8800 ... but that could be because the additional pa8800 flushes are
> masking the problem.  Could you try bisecting the parisc commits
> between .4 and .5 and see if there's a particular cause?

It's the one mmap fix, I see .5 being stable after reverting that fix.

Eike
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On Sat, 25 Jan 2014 15:13:47 -0500
John David Anglin <dave.anglin@bell.net> wrote:

> Helge has made some changes to palo but I believe that we are on the  
> PDC boot
> console (ttyB0) until switch over here:

This.

> How long is your cable?    There's no shield connection on DB9  
> connector.  You just
> need to cross transmit and receive data.  Signal ground is straight  
> through.
> 
> Dave L is correct about USB keyboard and mouse confusing serial  
> console support.

Yes, but _all_ of that is entirely immaterial as the same hardware
worked fine for more than one and a half years, _until_ the changes to
palo/PDC console support were introduced.

I could easily revert the IPL to the former working version (1.18) and
see if that fixes the issue during boot. I'll report back with some
results.
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On 1/25/14 5:02 PM, Jeroen Roovers wrote:
> On Sat, 25 Jan 2014 15:13:47 -0500
> John David Anglin <dave.anglin@bell.net> wrote:
>
>> Helge has made some changes to palo but I believe that we are on the
>> PDC boot
>> console (ttyB0) until switch over here:
>
> This.
>
>> How long is your cable?    There's no shield connection on DB9
>> connector.  You just
>> need to cross transmit and receive data.  Signal ground is straight
>> through.
>>
>> Dave L is correct about USB keyboard and mouse confusing serial
>> console support.
>
> Yes, but _all_ of that is entirely immaterial as the same hardware
> worked fine for more than one and a half years, _until_ the changes to
> palo/PDC console support were introduced.

Ahh, I missed that part... :-P I think I set mine up after this was 
introduced.

Dave L.

>
> I could easily revert the IPL to the former working version (1.18) and
> see if that fixes the issue during boot. I'll report back with some
> results.
> --
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>


-- 
Dave Land
Land Computer Service  xmechanic@landcomp.net
ICQ: 676030523


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From: Helge Deller <deller@gmx.de>
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Subject: Re: [C8000] serial console drops input
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On 01/26/2014 01:02 AM, Jeroen Roovers wrote:
> On Sat, 25 Jan 2014 15:13:47 -0500
> John David Anglin <dave.anglin@bell.net> wrote:
> 
>> Helge has made some changes to palo but I believe that we are on the  
>> PDC boot
>> console (ttyB0) until switch over here:
> 
> This.
> 
>> How long is your cable?    There's no shield connection on DB9  
>> connector.  You just
>> need to cross transmit and receive data.  Signal ground is straight  
>> through.
>>
>> Dave L is correct about USB keyboard and mouse confusing serial  
>> console support.
> 
> Yes, but _all_ of that is entirely immaterial as the same hardware
> worked fine for more than one and a half years, _until_ the changes to
> palo/PDC console support were introduced.
> 
> I could easily revert the IPL to the former working version (1.18) and
> see if that fixes the issue during boot. I'll report back with some
> results.

I'm pretty sure that I didn't changed anything in palo which is PDC-console
related and which would explain why you have such problems.
If there is a problem, then it might be because of kernel and/or cable.

Helge

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Subject: Re: [C8000] serial console drops input
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On Sun, 26 Jan 2014 16:07:18 +0100
Helge Deller <deller@gmx.de> wrote:

> I'm pretty sure that I didn't changed anything in palo which is
> PDC-console related and which would explain why you have such
> problems. If there is a problem, then it might be because of kernel
> and/or cable.

Yes, that seems to be the case. I initially assumed something might
actually reconfigure the serial port in the IPL, but I can't find any
evidence in support.

I think I am seeing two problems:

1) Pasting strings doesn't work on either the PDC console or the
   IPL/Linux console.

2) Whereas typing on the PDC console works fine, even at some speed,
   the same is not true for the IPL/Linux console, which lose many
   characters along the way, and act as if the connection is
   temporarily lost. Switching the client side terminal program
   (I tested with minicom, picocom, screen) makes no difference.

Do serial cables deteriorate over time? :-)


Regards,
     jer
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Cc: Helge Deller <deller@gmx.de>,
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On 1/26/14 1:22 PM, Jeroen Roovers wrote:
> On Sun, 26 Jan 2014 16:07:18 +0100
> Helge Deller <deller@gmx.de> wrote:
>
>> I'm pretty sure that I didn't changed anything in palo which is
>> PDC-console related and which would explain why you have such
>> problems. If there is a problem, then it might be because of kernel
>> and/or cable.
>
> Yes, that seems to be the case. I initially assumed something might
> actually reconfigure the serial port in the IPL, but I can't find any
> evidence in support.
>
> I think I am seeing two problems:
>
> 1) Pasting strings doesn't work on either the PDC console or the
>     IPL/Linux console.
>
> 2) Whereas typing on the PDC console works fine, even at some speed,
>     the same is not true for the IPL/Linux console, which lose many
>     characters along the way, and act as if the connection is
>     temporarily lost. Switching the client side terminal program
>     (I tested with minicom, picocom, screen) makes no difference.
>
> Do serial cables deteriorate over time? :-)
>
>
> Regards,
>       jer
> --

Jeroen,

It is a possibility that the serial cable may be a problem, or there may 
actually be a hardware issue with the machine itself.(Most of these 
machines are pretty old by computer world standards) :-) Sometimes just 
giving them a good cleaning with compressed air, and re-seating the RAM 
modules will make a difference. Just a thought... ;-)

Dave L.

P.S. I live in an area where dust is a major problem, and I have to blow 
the dust and crap out of mine about every 3 months or so. If I don't; 
when it *does* rain around here and the humidity goes up, I get all 
kinds of weird errors on some of my machines (the dust becomes 
electrically conductive). I experience this a lot with my customers 
machines too.

-- 
Dave Land
Land Computer Service  xmechanic@landcomp.net
ICQ: 676030523


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On 26-Jan-14, at 3:22 PM, Jeroen Roovers wrote:

> Do serial cables deteriorate over time? :-)

Not much although the soldered/crimped connections could break.  More  
of an issue is the
drivers.  Many boards use +3.3V devices such as the MAX3232.  These  
don't put out as much voltage
on the cable as standard RS232 drivers.  So, they can't drive as much  
cable as a fully standard device.
Secondly, the driver chips are sensitive to ESD damage (particularly  
receiver).  So, they could
get zapped, particularly if devices are connected while running when a  
connection is made.
Currents can also flow through the cable when the grounds for the two  
pieces of equipment
is the same.  There is no isolation in RS232 so it is sensitive to ESD  
problem.  There is an 'E'
version of most RS232 driver devices which has improved (+15KV human  
body) ESD protection.

I've seen quite a few devices die in the lab.  The charge pump on  
these devices is also sometimes
a problem.

Without a scope, it's hard to tell when the signals are bad.  Best  
that can be done is to test both
units with third device using same/different cables, etc.

Dave
--
John David Anglin	dave.anglin@bell.net



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On 26-Jan-14, at 4:01 PM, John David Anglin wrote:

> Currents can also flow through the cable when the grounds for the  
> two pieces of equipment
> is the same.

"not the same".

--
John David Anglin	dave.anglin@bell.net



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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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To: Aaro Koskinen <aaro.koskinen@iki.fi>, linux-parisc@vger.kernel.org
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Am 23.12.2013 21:34, schrieb Rolf Eike Beer:
> Am Donnerstag, 19. Dezember 2013, 21:17:51 schrieb Aaro Koskinen:
>> Hi,
>> 
>> This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
>> mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
> 
> I also suspect this patch of causing trouble. My C8000 regularly 
> submits to
> the libarchive dashboard 
> (http://my.cdash.org/index.php?project=libarchive).
> Since I upgraded to 3.12.5 one test (libarchive_test_compat_mac) keeps
> failing. The day after compile errors and other problems started (just 
> browse
> through the last 2 weeks and you will see it). Then I reverted that 
> change and
> rebootet. The compat_mac test still fails, but the other failures are 
> gone.

Just for the records: the compat_mac test fails also on my x86_64.

At least the compile error in archive_read_support_format_zip.c is real, 
i.e. I can reproduce it on a 32 bit build on x86. No idea why it did not 
happen before.

Eike
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Subject: [PATCH] parisc64: don't use module_init for non-modular core perf code
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The perf.c code depends on CONFIG_64BIT, so it is either built-in
or absent.  It will never be modular, so using module_init as an
alias for __initcall is rather misleading.

Fix this up now, so that we can relocate module_init from
init.h into module.h in the future.  If we don't do this, we'd
have to add module.h to obviously non-modular code, and that
would be a worse thing.  Aside from it not making sense, it also
causes a ~10% increase in CPP overhead due to module.h having a
large list of headers itself -- for example compare line counts:

 device_initcall() and <linux/init.h>
	20238 arch/parisc/kernel/perf.i

 module_init() and <linux/module.h>
	22194 arch/parisc/kernel/perf.i

Direct use of __initcall is discouraged, vs prioritized ones.
Use of device_initcall is consistent with what __initcall
maps onto, and hence does not change the init order, making the
impact of this change zero.   Should someone with real hardware
for boot testing want to change it later to arch_initcall or
something different, they can do that at a later date.

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---

[patch will be added to init cleanup series:
   http://git.kernel.org/cgit/linux/kernel/git/paulg/init.git/  ]

 arch/parisc/kernel/perf.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index ba0c053e25ae..518f4f5f1f43 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -543,6 +543,7 @@ static int __init perf_init(void)
 
 	return 0;
 }
+device_initcall(perf_init);
 
 /*
  * perf_start_counters(void)
@@ -847,5 +848,3 @@ printk("perf_rdr_write\n");
 	}
 printk("perf_rdr_write done\n");
 }

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From: Geert Uytterhoeven <geert@linux-m68k.org>
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drivers/char/ipmi/ipmi_si_intf.c: In function 'ipmi_parisc_probe':
drivers/char/ipmi/ipmi_si_intf.c:2752:2: error: 'rv' undeclared (first use in this function)
drivers/char/ipmi/ipmi_si_intf.c:2752:2: note: each undeclared identifier is reported only once for each function it appears in

Introduced by commit d02b3709ff8efebfca0612d0ac2a6e31a91c13f4 ("ipmi:
Cleanup error return")

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
http://kisskb.ellerman.id.au/kisskb/buildresult/10537567/

 drivers/char/ipmi/ipmi_si_intf.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 671c3852d359..03f41896d090 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -2724,6 +2724,7 @@ static struct platform_driver ipmi_driver = {
 static int ipmi_parisc_probe(struct parisc_device *dev)
 {
 	struct smi_info *info;
+	int rv;
 
 	info = smi_info_alloc();
 
-- 
1.7.9.5


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On 01/28/2014 01:12 PM, Geert Uytterhoeven wrote:
> drivers/char/ipmi/ipmi_si_intf.c: In function 'ipmi_parisc_probe':
> drivers/char/ipmi/ipmi_si_intf.c:2752:2: error: 'rv' undeclared (first use in this function)
> drivers/char/ipmi/ipmi_si_intf.c:2752:2: note: each undeclared identifier is reported only once for each function it appears in
>
> Introduced by commit d02b3709ff8efebfca0612d0ac2a6e31a91c13f4 ("ipmi:
> Cleanup error return")
>
> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

Dang it.  Yes, you are right, of course.

Acked-by: Corey Minyard <cminyard@mvista.com>
> ---
> http://kisskb.ellerman.id.au/kisskb/buildresult/10537567/
>
>  drivers/char/ipmi/ipmi_si_intf.c |    1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
> index 671c3852d359..03f41896d090 100644
> --- a/drivers/char/ipmi/ipmi_si_intf.c
> +++ b/drivers/char/ipmi/ipmi_si_intf.c
> @@ -2724,6 +2724,7 @@ static struct platform_driver ipmi_driver = {
>  static int ipmi_parisc_probe(struct parisc_device *dev)
>  {
>  	struct smi_info *info;
> +	int rv;
>  
>  	info = smi_info_alloc();
>  

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From - Thu Nov 08 21:10:09 2018
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From - Thu Nov 08 21:10:09 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Ftrace broken on parisc
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Hi all,


It seems that the ftrace subsystem has not been maintained for a few
years.

So far I have the diff at the bottom that attempts to fix it bug there
is still an issue while linking :


arch/parisc/kernel/built-in.o: In function `return_to_handler':
(.text+0xb2a8): undefined reference to `ftrace_return_to_handler'
hppa64-linux-ld: arch/parisc/kernel/built-in.o(.text+0xllx): cannot
reach (null)
arch/parisc/kernel/built-in.o: In function `return_to_handler':
(.text+0xb2a8): relocation truncated to fit: R_PARISC_PCREL17F against
undefined symbol `ftrace_return_to_handler'
make: *** [vmlinux] Error 1

I'm not sure how this can be fixed, the problems comes from the
assembly in entry.S, it uses a 'b' to jump to ftrace_return_to_handler.
I guess 'be' needs to be used but not sure how that'd works with the
linker.

Moreover, there is probably more than this to be fixed.

For the background story, I'm trying to fix this to audit irq handlers
for my pata_sil680 issue.

Adding some printk for irq == 71 in handle_percpu_irq(), I see and odd
behavior. The printk at the end of the function is displayed a lot more
than the printk at the begining of the function. I know printk isn't
the best for irq handlers that's why I was investigating the ftrace way.

Any tip/help is very much welcome !

  Guy

---
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index bc989e5..6d23a1a 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -1,5 +1,8 @@
 menu "Kernel hacking"

+config TRACE_IRQFLAGS_SUPPORT
+       def_bool y
+
 source "lib/Kconfig.debug"

 config DEBUG_RODATA
diff --git a/arch/parisc/kernel/ftrace.c b/arch/parisc/kernel/ftrace.c
index 5beb97b..8c9f757 100644
--- a/arch/parisc/kernel/ftrace.c
+++ b/arch/parisc/kernel/ftrace.c
@@ -156,7 +156,7 @@ void ftrace_function_trampoline(unsigned long
 parent, return;

        if (ftrace_trace_function != ftrace_stub) {
-               ftrace_trace_function(parent, self_addr);
+               ftrace_trace_function(parent, self_addr, NULL, NULL);
                return;
        }
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER

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From - Thu Nov 08 21:10:09 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Ftrace broken on parisc
Date: Wed, 29 Jan 2014 21:44:01 +0100
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Hi Guy,

On 01/29/2014 08:59 PM, Guy Martin wrote:
> It seems that the ftrace subsystem has not been maintained for a few
> years.

Yes.
 
> So far I have the diff at the bottom that attempts to fix it bug there
> is still an issue while linking :

I'm not sure I tested 64bit at that time.

> arch/parisc/kernel/built-in.o: In function `return_to_handler':
> (.text+0xb2a8): undefined reference to `ftrace_return_to_handler'
> hppa64-linux-ld: arch/parisc/kernel/built-in.o(.text+0xllx): cannot
> reach (null)
> arch/parisc/kernel/built-in.o: In function `return_to_handler':
> (.text+0xb2a8): relocation truncated to fit: R_PARISC_PCREL17F against
> undefined symbol `ftrace_return_to_handler'
> make: *** [vmlinux] Error 1
> 
> I'm not sure how this can be fixed, the problems comes from the
> assembly in entry.S, it uses a 'b' to jump to ftrace_return_to_handler.
> I guess 'be' needs to be used but not sure how that'd works with the
> linker.

Can you try
BL ftrace_return_to_handler, %r0
(I'm not good in hppa assembly - as you can see if you take a look at this assembly code section :-)).

> Moreover, there is probably more than this to be fixed.
> 
> For the background story, I'm trying to fix this to audit irq handlers
> for my pata_sil680 issue.
> 
> Adding some printk for irq == 71 in handle_percpu_irq(), I see and odd
> behavior. The printk at the end of the function is displayed a lot more
> than the printk at the begining of the function. I know printk isn't
> the best for irq handlers that's why I was investigating the ftrace way.
> 
> Any tip/help is very much welcome !

Helge


> 
>   Guy
> 
> ---
> diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
> index bc989e5..6d23a1a 100644
> --- a/arch/parisc/Kconfig.debug
> +++ b/arch/parisc/Kconfig.debug
> @@ -1,5 +1,8 @@
>  menu "Kernel hacking"
> 
> +config TRACE_IRQFLAGS_SUPPORT
> +       def_bool y
> +
>  source "lib/Kconfig.debug"
> 
>  config DEBUG_RODATA
> diff --git a/arch/parisc/kernel/ftrace.c b/arch/parisc/kernel/ftrace.c
> index 5beb97b..8c9f757 100644
> --- a/arch/parisc/kernel/ftrace.c
> +++ b/arch/parisc/kernel/ftrace.c
> @@ -156,7 +156,7 @@ void ftrace_function_trampoline(unsigned long
>  parent, return;
> 
>         if (ftrace_trace_function != ftrace_stub) {
> -               ftrace_trace_function(parent, self_addr);
> +               ftrace_trace_function(parent, self_addr, NULL, NULL);
>                 return;
>         }
>  #ifdef CONFIG_FUNCTION_GRAPH_TRACER
> 
> --
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> the body of a message to majordomo@vger.kernel.org
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Ftrace broken on parisc
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On 1/29/2014 3:44 PM, Helge Deller wrote:
> Hi Guy,
>
> On 01/29/2014 08:59 PM, Guy Martin wrote:
>> It seems that the ftrace subsystem has not been maintained for a few
>> years.
> Yes.
>   
>> So far I have the diff at the bottom that attempts to fix it bug there
>> is still an issue while linking :
> I'm not sure I tested 64bit at that time.
>
>> arch/parisc/kernel/built-in.o: In function `return_to_handler':
>> (.text+0xb2a8): undefined reference to `ftrace_return_to_handler'
>> hppa64-linux-ld: arch/parisc/kernel/built-in.o(.text+0xllx): cannot
>> reach (null)
>> arch/parisc/kernel/built-in.o: In function `return_to_handler':
>> (.text+0xb2a8): relocation truncated to fit: R_PARISC_PCREL17F against
>> undefined symbol `ftrace_return_to_handler'
>> make: *** [vmlinux] Error 1
>>
>> I'm not sure how this can be fixed, the problems comes from the
>> assembly in entry.S, it uses a 'b' to jump to ftrace_return_to_handler.
>> I guess 'be' needs to be used but not sure how that'd works with the
>> linker.
> Can you try
> BL ftrace_return_to_handler, %r0
> (I'm not good in hppa assembly - as you can see if you take a look at this assembly code section :-)).
>
BL might not reach on PA 1.1.  The PA 2.0 b,l instruction is only "long" 
when the link
register is %rp and it is used for the return_trampoline.

I would say replace "b" with the following as it will always reach target:
         load32  ftrace_return_to_handler, %r20
         bv      %r0(%r20)

%r1 is another register alternative.

Dave

-- 
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc/sti_console: prefer Linux fonts over built-in ROM
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The built-in ROM fonts lack many necessary ASCII characters, which is
why it makes sens to prefer the Linux fonts instead if they are
available.  This makes consoles on STI graphics cards which are not
supported by the stifb driver (e.g. Visualize FXe) looks much nicer.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index 4ad24f2..cecd3de 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -488,7 +488,7 @@ static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
 	return 0;
 }
 
-#ifdef CONFIG_FONTS
+#ifdef CONFIG_FONT_SUPPORT
 static struct sti_cooked_font *
 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
 {
diff --git a/lib/fonts/Kconfig b/lib/fonts/Kconfig
index 34fd931..4dc1b99 100644
--- a/lib/fonts/Kconfig
+++ b/lib/fonts/Kconfig
@@ -9,7 +9,7 @@ if FONT_SUPPORT
 
 config FONTS
 	bool "Select compiled-in fonts"
-	depends on FRAMEBUFFER_CONSOLE || STI_CONSOLE
+	depends on FRAMEBUFFER_CONSOLE
 	help
 	  Say Y here if you would like to use fonts other than the default
 	  your frame buffer console usually use.
@@ -22,7 +22,7 @@ config FONTS
 
 config FONT_8x8
 	bool "VGA 8x8 font" if FONTS
-	depends on FRAMEBUFFER_CONSOLE || STI_CONSOLE
+	depends on FRAMEBUFFER_CONSOLE
 	default y if !SPARC && !FONTS
 	help
 	  This is the "high resolution" font for the VGA frame buffer (the one
@@ -45,7 +45,7 @@ config FONT_8x16
 
 config FONT_6x11
 	bool "Mac console 6x11 font (not supported by all drivers)" if FONTS
-	depends on FRAMEBUFFER_CONSOLE || STI_CONSOLE
+	depends on FRAMEBUFFER_CONSOLE
 	default y if !SPARC && !FONTS && MAC
 	help
 	  Small console font with Macintosh-style high-half glyphs.  Some Mac
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] Make EWOULDBLOCK be equal to EAGAIN on parisc.
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To: Guy Martin <gmsoft@tuxicoman.be>, linux-parisc@vger.kernel.org,
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On 01/16/2014 05:17 PM, Guy Martin wrote:
> On Linux, only parisc uses a different value for EWOULDBLOCK which
> causes a lot of troubles for applications not checking for both values.
> Since the hpux compat is long dead, make EWOULDBLOCK behave the same as
> all other architectures.
> 
> Signed-off-by: Guy Martin  <gmsoft@tuxicoman.be>

What's our final decision regarding this patch now?
Shall we target it for inclusion into 3.14 ?
If yes, I can include it with my next push request...

Please speak up now...!

Helge

> ---
>  arch/parisc/include/uapi/asm/errno.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/parisc/include/uapi/asm/errno.h b/arch/parisc/include/uapi/asm/errno.h
> index f3a8aa5..c0ae625 100644
> --- a/arch/parisc/include/uapi/asm/errno.h
> +++ b/arch/parisc/include/uapi/asm/errno.h
> @@ -106,7 +106,7 @@
> 
>  #define    EALREADY    244    /* Operation already in progress */
>  #define    EINPROGRESS    245    /* Operation now in progress */
> -#define    EWOULDBLOCK    246    /* Operation would block (Linux returns EAGAIN) */
> +#define    EWOULDBLOCK    EAGAIN    /* Operation would block (Not HPUX compliant) */
>  #define    ENOTEMPTY    247    /* Directory not empty */
>  #define    ENAMETOOLONG    248    /* File name too long */
>  #define    ELOOP        249    /* Too many symbolic links encountered */

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Subject: Re: [PATCH] Make EWOULDBLOCK be equal to EAGAIN on parisc.
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On Fri, Jan 31, 2014 at 11:53 AM, Helge Deller <deller@gmx.de> wrote:
> On 01/16/2014 05:17 PM, Guy Martin wrote:
>> On Linux, only parisc uses a different value for EWOULDBLOCK which
>> causes a lot of troubles for applications not checking for both values.
>> Since the hpux compat is long dead, make EWOULDBLOCK behave the same as
>> all other architectures.
>>
>> Signed-off-by: Guy Martin  <gmsoft@tuxicoman.be>
>
> What's our final decision regarding this patch now?
> Shall we target it for inclusion into 3.14 ?
> If yes, I can include it with my next push request...
>
> Please speak up now...!
>
> Helge
>
>> ---
>>  arch/parisc/include/uapi/asm/errno.h | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/parisc/include/uapi/asm/errno.h b/arch/parisc/include/uapi/asm/errno.h
>> index f3a8aa5..c0ae625 100644
>> --- a/arch/parisc/include/uapi/asm/errno.h
>> +++ b/arch/parisc/include/uapi/asm/errno.h
>> @@ -106,7 +106,7 @@
>>
>>  #define    EALREADY    244    /* Operation already in progress */
>>  #define    EINPROGRESS    245    /* Operation now in progress */
>> -#define    EWOULDBLOCK    246    /* Operation would block (Linux returns EAGAIN) */
>> +#define    EWOULDBLOCK    EAGAIN    /* Operation would block (Not HPUX compliant) */
>>  #define    ENOTEMPTY    247    /* Directory not empty */
>>  #define    ENAMETOOLONG    248    /* File name too long */
>>  #define    ELOOP        249    /* Too many symbolic links encountered */

I think we should do it and fix the userspace fallout by rebuilding.

This is just like non-zero locks were in linuxthreads, a pain and
constant source of bugs.

I'll fixup glibc.

Cheers,
Carlos.
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: fix cache-flushing
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This commit:
f8dae00684d678afa13041ef170cecfd1297ed40: parisc: Ensure full cache coherency for kmap/kunmap 
caused negative caching side-effects, e.g. hanging processes with expect and
too many inequivalent alias messages from flush_dcache_page() on Debian 5 systems. 

This patch now partly reverts it and has been in production use on our debian buildd
makeservers since a week without any major problems.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # v3.9+

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 2f9b751..de65f66 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -132,7 +132,6 @@ void mark_rodata_ro(void);
 static inline void *kmap(struct page *page)
 {
 	might_sleep();
-	flush_dcache_page(page);
 	return page_address(page);
 }
 
@@ -144,7 +143,6 @@ static inline void kunmap(struct page *page)
 static inline void *kmap_atomic(struct page *page)
 {
 	pagefault_disable();
-	flush_dcache_page(page);
 	return page_address(page);
 }
 
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index c53fc63..637fe03 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -29,7 +29,8 @@ struct page;
 void clear_page_asm(void *page);
 void copy_page_asm(void *to, void *from);
 #define clear_user_page(vto, vaddr, page) clear_page_asm(vto)
-#define copy_user_page(vto, vfrom, vaddr, page) copy_page_asm(vto, vfrom)
+void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
+			struct page *pg);
 
 /* #define CONFIG_PARISC_TMPALIAS */
 
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index a725455..ac87a40 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -388,6 +388,20 @@ void flush_kernel_dcache_page_addr(void *addr)
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
+void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
+	struct page *pg)
+{
+       /* Copy using kernel mapping.  No coherency is needed (all in
+	  kunmap) for the `to' page.  However, the `from' page needs to
+	  be flushed through a mapping equivalent to the user mapping
+	  before it can be accessed through the kernel mapping. */
+	preempt_disable();
+	flush_dcache_page_asm(__pa(vfrom), vaddr);
+	preempt_enable();
+	copy_page_asm(vto, vfrom);
+}
+EXPORT_SYMBOL(copy_user_page);
+
 void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 {
 	unsigned long flags;
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Add support for the flexible mmap memory layout (as described in
http://lwn.net/Articles/91829). This is especially very interesting on
parisc since we currently only support 32bit userspace (even with a
64bit Linux kernel).

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index ad2b503..369f237 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -348,4 +348,11 @@ struct pt_regs;	/* forward declaration... */
 
 #define ELF_HWCAP	0
 
+/* Stack randomization: 1GB for 64bit, 8MB for 32bit */
+#define STACK_RND_MASK (is_32bit_task() ? 0x7ff : 0x3fffff)
+
+struct mm_struct;
+extern unsigned long arch_randomize_brk(struct mm_struct *);
+#define arch_randomize_brk arch_randomize_brk
+
 #endif
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 34899b5..22b89d1 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -511,6 +511,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 /* We provide our own get_unmapped_area to provide cache coherency */
 
 #define HAVE_ARCH_UNMAPPED_AREA
+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
 
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index cc2290a..198a86f 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -30,6 +30,8 @@
 #endif
 #define current_text_addr() ({ void *pc; current_ia(pc); pc; })
 
+#define HAVE_ARCH_PICK_MMAP_LAYOUT
+
 #define TASK_SIZE_OF(tsk)       ((tsk)->thread.task_size)
 #define TASK_SIZE	        TASK_SIZE_OF(current)
 #define TASK_UNMAPPED_BASE      (current->thread.map_base)
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index d5f97ea..4b9b10c 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -76,6 +76,16 @@ struct thread_info {
 #define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP |	\
 				 _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT)
 
+#ifdef CONFIG_64BIT
+# ifdef CONFIG_COMPAT
+#  define is_32bit_task()	(test_thread_flag(TIF_32BIT))
+# else
+#  define is_32bit_task()	(0)
+# endif
+#else
+# define is_32bit_task()	(1)
+#endif
+
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_PARISC_THREAD_INFO_H */
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 55f92b6..0bbbf0d 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -13,7 +13,7 @@
  *    Copyright (C) 2000 Grant Grundler <grundler with parisc-linux.org>
  *    Copyright (C) 2001 Alan Modra <amodra at parisc-linux.org>
  *    Copyright (C) 2001-2002 Ryan Bradetich <rbrad at parisc-linux.org>
- *    Copyright (C) 2001-2007 Helge Deller <deller at parisc-linux.org>
+ *    Copyright (C) 2001-2014 Helge Deller <deller@gmx.de>
  *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
  *
  *
@@ -49,6 +49,7 @@
 #include <linux/kallsyms.h>
 #include <linux/uaccess.h>
 #include <linux/rcupdate.h>
+#include <linux/random.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -286,3 +287,21 @@ void *dereference_function_descriptor(void *ptr)
 	return ptr;
 }
 #endif
+
+static inline unsigned long brk_rnd(void)
+{
+	/* 8MB for 32bit, 1GB for 64bit */
+	if (is_32bit_task())
+		return (get_random_int() & 0x7ffUL) << PAGE_SHIFT;
+	else
+		return (get_random_int() & 0x3ffffUL) << PAGE_SHIFT;
+}
+
+unsigned long arch_randomize_brk(struct mm_struct *mm)
+{
+	unsigned long ret = PAGE_ALIGN(mm->brk + brk_rnd());
+
+	if (ret < mm->brk)
+		return mm->brk;
+	return ret;
+}
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 0d3a9d4..b7cadc4 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -5,6 +5,7 @@
  *    Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org>
  *    Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
  *    Copyright (C) 2001 Thomas Bogendoerfer <tsbogend at parisc-linux.org>
+ *    Copyright (C) 1999-2014 Helge Deller <deller@gmx.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -23,6 +24,7 @@
  */
 
 #include <asm/uaccess.h>
+#include <asm/elf.h>
 #include <linux/file.h>
 #include <linux/fs.h>
 #include <linux/linkage.h>
@@ -32,78 +34,230 @@
 #include <linux/syscalls.h>
 #include <linux/utsname.h>
 #include <linux/personality.h>
+#include <linux/random.h>
 
-static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
+/* we construct an artificial offset for the mapping based on the physical
+ * address of the kernel mapping variable */
+#define GET_LAST_MMAP(filp)		\
+	(filp ? ((unsigned long) filp->f_mapping) >> 8 : 0UL)
+#define SET_LAST_MMAP(filp, val)	\
+	 { /* nothing */ }
+
+static int get_offset(unsigned int last_mmap)
 {
-	struct vm_unmapped_area_info info;
+	return (last_mmap & (SHMLBA-1)) >> PAGE_SHIFT;
+}
 
-	info.flags = 0;
-	info.length = len;
-	info.low_limit = PAGE_ALIGN(addr);
-	info.high_limit = TASK_SIZE;
-	info.align_mask = 0;
-	info.align_offset = 0;
-	return vm_unmapped_area(&info);
+static unsigned long shared_align_offset(unsigned int last_mmap,
+					 unsigned long pgoff)
+{
+	return (get_offset(last_mmap) + pgoff) << PAGE_SHIFT;
 }
 
-/*
- * We need to know the offset to use.  Old scheme was to look for
- * existing mapping and use the same offset.  New scheme is to use the
- * address of the kernel data structure as the seed for the offset.
- * We'll see how that works...
- *
- * The mapping is cacheline aligned, so there's no information in the bottom
- * few bits of the address.  We're looking for 10 bits (4MB / 4k), so let's
- * drop the bottom 8 bits and use bits 8-17.  
- */
-static int get_offset(struct address_space *mapping)
+static inline unsigned long COLOR_ALIGN(unsigned long addr,
+			 unsigned int last_mmap, unsigned long pgoff)
 {
-	return (unsigned long) mapping >> 8;
+	unsigned long base = (addr+SHMLBA-1) & ~(SHMLBA-1);
+	unsigned long off  = (SHMLBA-1) &
+		(shared_align_offset(last_mmap, pgoff) << PAGE_SHIFT);
+
+	return base + off;
 }
 
-static unsigned long shared_align_offset(struct file *filp, unsigned long pgoff)
+/*
+ * Top of mmap area (just below the process stack).
+ */
+
+static unsigned long mmap_upper_limit(void)
 {
-	struct address_space *mapping = filp ? filp->f_mapping : NULL;
+	unsigned long stack_base;
 
-	return (get_offset(mapping) + pgoff) << PAGE_SHIFT;
+	/* Limit stack size to 1GB - see setup_arg_pages() in fs/exec.c */
+	stack_base = rlimit_max(RLIMIT_STACK);
+	if (stack_base > (1 << 30))
+		stack_base = 1 << 30;
+
+	return PAGE_ALIGN(STACK_TOP - stack_base);
 }
 
-static unsigned long get_shared_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff)
+
+unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
+		unsigned long len, unsigned long pgoff, unsigned long flags)
 {
+	struct mm_struct *mm = current->mm;
+	struct vm_area_struct *vma;
+	unsigned long task_size = TASK_SIZE;
+	int do_color_align, last_mmap;
 	struct vm_unmapped_area_info info;
 
+	if (len > task_size)
+		return -ENOMEM;
+
+	do_color_align = 0;
+	if (filp || (flags & MAP_SHARED))
+		do_color_align = 1;
+	last_mmap = GET_LAST_MMAP(filp);
+
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) && last_mmap &&
+		    (addr - shared_align_offset(last_mmap, pgoff))
+				& (SHMLBA - 1))
+			return -EINVAL;
+		goto found_addr;
+	}
+
+	if (addr) {
+		if (do_color_align && last_mmap)
+			addr = COLOR_ALIGN(addr, last_mmap, pgoff);
+		else
+			addr = PAGE_ALIGN(addr);
+
+		vma = find_vma(mm, addr);
+		if (task_size - len >= addr &&
+		    (!vma || addr + len <= vma->vm_start))
+			goto found_addr;
+	}
+
 	info.flags = 0;
 	info.length = len;
-	info.low_limit = PAGE_ALIGN(addr);
-	info.high_limit = TASK_SIZE;
-	info.align_mask = PAGE_MASK & (SHMLBA - 1);
-	info.align_offset = shared_align_offset(filp, pgoff);
-	return vm_unmapped_area(&info);
+	info.low_limit = mm->mmap_legacy_base;
+	info.high_limit = mmap_upper_limit();
+	info.align_mask = last_mmap ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+	info.align_offset = shared_align_offset(last_mmap, pgoff);
+	addr = vm_unmapped_area(&info);
+
+found_addr:
+	if (do_color_align && !last_mmap && !(addr & ~PAGE_MASK))
+		SET_LAST_MMAP(filp, addr - (pgoff << PAGE_SHIFT));
+
+	return addr;
 }
 
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long
+arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+			  const unsigned long len, const unsigned long pgoff,
+			  const unsigned long flags)
 {
+	struct vm_area_struct *vma;
+	struct mm_struct *mm = current->mm;
+	unsigned long addr = addr0;
+	int do_color_align, last_mmap;
+	struct vm_unmapped_area_info info;
+
+#ifdef CONFIG_64BIT
+	/* This should only ever run for 32-bit processes.  */
+	BUG_ON(!test_thread_flag(TIF_32BIT));
+#endif
+
+	/* requested length too big for entire address space */
 	if (len > TASK_SIZE)
 		return -ENOMEM;
+
+	do_color_align = 0;
+	if (filp || (flags & MAP_SHARED))
+		do_color_align = 1;
+	last_mmap = GET_LAST_MMAP(filp);
+
 	if (flags & MAP_FIXED) {
-		if ((flags & MAP_SHARED) &&
-		    (addr - shared_align_offset(filp, pgoff)) & (SHMLBA - 1))
+		if ((flags & MAP_SHARED) && last_mmap &&
+		    (addr - shared_align_offset(last_mmap, pgoff))
+			& (SHMLBA - 1))
 			return -EINVAL;
-		return addr;
+		goto found_addr;
 	}
-	if (!addr)
-		addr = TASK_UNMAPPED_BASE;
 
-	if (filp || (flags & MAP_SHARED))
-		addr = get_shared_area(filp, addr, len, pgoff);
-	else
-		addr = get_unshared_area(addr, len);
+	/* requesting a specific address */
+	if (addr) {
+		if (do_color_align && last_mmap)
+			addr = COLOR_ALIGN(addr, last_mmap, pgoff);
+		else
+			addr = PAGE_ALIGN(addr);
+		vma = find_vma(mm, addr);
+		if (TASK_SIZE - len >= addr &&
+		    (!vma || addr + len <= vma->vm_start))
+			goto found_addr;
+	}
+
+	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
+	info.length = len;
+	info.low_limit = PAGE_SIZE;
+	info.high_limit = mm->mmap_base;
+	info.align_mask = last_mmap ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+	info.align_offset = shared_align_offset(last_mmap, pgoff);
+	addr = vm_unmapped_area(&info);
+	if (!(addr & ~PAGE_MASK))
+		goto found_addr;
+	VM_BUG_ON(addr != -ENOMEM);
+
+	/*
+	 * A failed mmap() very likely causes application failure,
+	 * so fall back to the bottom-up function here. This scenario
+	 * can happen with large stack limits and large mmap()
+	 * allocations.
+	 */
+	return arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
+
+found_addr:
+	if (do_color_align && !last_mmap && !(addr & ~PAGE_MASK))
+		SET_LAST_MMAP(filp, addr - (pgoff << PAGE_SHIFT));
 
 	return addr;
 }
 
+static int mmap_is_legacy(void)
+{
+	if (current->personality & ADDR_COMPAT_LAYOUT)
+		return 1;
+
+	/* parisc stack always grows up - so a unlimited stack should
+	 * not be an indicator to use the legacy memory layout.
+	 * if (rlimit(RLIMIT_STACK) == RLIM_INFINITY)
+	 *	return 1;
+	 */
+
+	return sysctl_legacy_va_layout;
+}
+
+static unsigned long mmap_rnd(void)
+{
+	unsigned long rnd = 0;
+
+	/*
+	*  8 bits of randomness in 32bit mmaps, 20 address space bits
+	* 28 bits of randomness in 64bit mmaps, 40 address space bits
+	*/
+	if (current->flags & PF_RANDOMIZE) {
+		if (is_32bit_task())
+			rnd = get_random_int() % (1<<8);
+		else
+			rnd = get_random_int() % (1<<28);
+	}
+	return rnd << PAGE_SHIFT;
+}
+
+static unsigned long mmap_legacy_base(void)
+{
+	return TASK_UNMAPPED_BASE + mmap_rnd();
+}
+
+/*
+ * This function, called very early during the creation of a new
+ * process VM image, sets up which VM layout function to use:
+ */
+void arch_pick_mmap_layout(struct mm_struct *mm)
+{
+	mm->mmap_legacy_base = mmap_legacy_base();
+	mm->mmap_base = mmap_upper_limit();
+
+	if (mmap_is_legacy()) {
+		mm->mmap_base = mm->mmap_legacy_base;
+		mm->get_unmapped_area = arch_get_unmapped_area;
+	} else {
+		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+	}
+}
+
+
 asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
 	unsigned long prot, unsigned long flags, unsigned long fd,
 	unsigned long pgoff)
diff --git a/fs/exec.c b/fs/exec.c
index e1529b4..a648162 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -659,6 +659,9 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	if (stack_base > (1 << 30))
 		stack_base = 1 << 30;
 
+	/* add some more stack size for stack randomization */
+	stack_base += STACK_RND_MASK + 1;
+
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
 		return -ENOMEM;
--
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From - Thu Nov 08 21:10:10 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: wire up sched_setattr and sched_getattr
Date: Fri, 31 Jan 2014 22:29:17 +0100
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To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:5675
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/5675>

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 2c8b9bd..4270679 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -826,8 +826,10 @@
 #define __NR_process_vm_writev	(__NR_Linux + 331)
 #define __NR_kcmp		(__NR_Linux + 332)
 #define __NR_finit_module	(__NR_Linux + 333)
+#define __NR_sched_setattr	(__NR_Linux + 334)
+#define __NR_sched_getattr	(__NR_Linux + 335)
 
-#define __NR_Linux_syscalls	(__NR_finit_module + 1)
+#define __NR_Linux_syscalls	(__NR_sched_getattr + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 0c91072..8fa3fbb 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -429,6 +429,8 @@
 	ENTRY_COMP(process_vm_writev)
 	ENTRY_SAME(kcmp)
 	ENTRY_SAME(finit_module)
+	ENTRY_SAME(sched_setattr)
+	ENTRY_SAME(sched_getattr)	/* 335 */
 
 	/* Nothing yet */
 
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From - Thu Nov 08 21:10:10 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: convert uapi/asm/stat.h to use native types only
Date: Fri, 31 Jan 2014 23:00:38 +0100
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To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
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The stat.h header file is exported to userspace. Some userspace
applications failed to compile due to missing/unknown types, so we
better convert it to use native types only (like it's done on other
architectures too).

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/stat.h b/arch/parisc/include/uapi/asm/stat.h
index d76fbda..b606b36 100644
--- a/arch/parisc/include/uapi/asm/stat.h
+++ b/arch/parisc/include/uapi/asm/stat.h
@@ -5,67 +5,65 @@
 
 struct stat {
 	unsigned int	st_dev;		/* dev_t is 32 bits on parisc */
-	ino_t		st_ino;		/* 32 bits */
-	mode_t		st_mode;	/* 16 bits */
+	unsigned int	st_ino;		/* 32 bits */
+	unsigned short	st_mode;	/* 16 bits */
 	unsigned short	st_nlink;	/* 16 bits */
 	unsigned short	st_reserved1;	/* old st_uid */
 	unsigned short	st_reserved2;	/* old st_gid */
 	unsigned int	st_rdev;
-	off_t		st_size;
-	time_t		st_atime;
+	signed int	st_size;
+	signed int	st_atime;
 	unsigned int	st_atime_nsec;
-	time_t		st_mtime;
+	signed int	st_mtime;
 	unsigned int	st_mtime_nsec;
-	time_t		st_ctime;
+	signed int	st_ctime;
 	unsigned int	st_ctime_nsec;
 	int		st_blksize;
 	int		st_blocks;
 	unsigned int	__unused1;	/* ACL stuff */
 	unsigned int	__unused2;	/* network */
-	ino_t		__unused3;	/* network */
+	unsigned int	__unused3;	/* network */
 	unsigned int	__unused4;	/* cnodes */
 	unsigned short	__unused5;	/* netsite */
 	short		st_fstype;
 	unsigned int	st_realdev;
 	unsigned short	st_basemode;
 	unsigned short	st_spareshort;
-	uid_t		st_uid;
-	gid_t		st_gid;
+	unsigned int	st_uid;
+	unsigned int	st_gid;
 	unsigned int	st_spare4[3];
 };
 
 #define STAT_HAVE_NSEC
 
-typedef __kernel_off64_t	off64_t;
-
 struct hpux_stat64 {
 	unsigned int	st_dev;		/* dev_t is 32 bits on parisc */
-	ino_t           st_ino;         /* 32 bits */
-	mode_t		st_mode;	/* 16 bits */
+	unsigned int	st_ino;         /* 32 bits */
+	unsigned short	st_mode;	/* 16 bits */
 	unsigned short	st_nlink;	/* 16 bits */
 	unsigned short	st_reserved1;	/* old st_uid */
 	unsigned short	st_reserved2;	/* old st_gid */
 	unsigned int	st_rdev;
-	off64_t		st_size;
-	time_t		st_atime;
+	signed long long st_size;
+	signed int	st_atime;
 	unsigned int	st_spare1;
-	time_t		st_mtime;
+	signed int	st_mtime;
 	unsigned int	st_spare2;
-	time_t		st_ctime;
+	signed int	st_ctime;
 	unsigned int	st_spare3;
 	int		st_blksize;
-	__u64		st_blocks;
+	unsigned long long st_blocks;
 	unsigned int	__unused1;	/* ACL stuff */
 	unsigned int	__unused2;	/* network */
-	ino_t           __unused3;      /* network */
+	unsigned int	__unused3;      /* network */
 	unsigned int	__unused4;	/* cnodes */
 	unsigned short	__unused5;	/* netsite */
 	short		st_fstype;
 	unsigned int	st_realdev;
 	unsigned short	st_basemode;
 	unsigned short	st_spareshort;
-	uid_t		st_uid;
-	gid_t		st_gid;
+	unsigned int	st_uid;
+	unsigned int	st_gid;
 	unsigned int	st_spare4[3];
 };
 
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From: Mike Frysinger <vapier@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] Make EWOULDBLOCK be equal to EAGAIN on parisc.
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Cc: Helge Deller <deller@gmx.de>, Guy Martin <gmsoft@tuxicoman.be>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Friday, January 31, 2014 12:24:10 Carlos O'Donell wrote:
> On Fri, Jan 31, 2014 at 11:53 AM, Helge Deller <deller@gmx.de> wrote:=

> > On 01/16/2014 05:17 PM, Guy Martin wrote:
> >> On Linux, only parisc uses a different value for EWOULDBLOCK which=

> >> causes a lot of troubles for applications not checking for both va=
lues.
> >> Since the hpux compat is long dead, make EWOULDBLOCK behave the sa=
me as
> >> all other architectures.
> >>=20
> >> Signed-off-by: Guy Martin  <gmsoft@tuxicoman.be>
> >=20
> > What's our final decision regarding this patch now?
> > Shall we target it for inclusion into 3.14 ?
> > If yes, I can include it with my next push request...
> >=20
> > Please speak up now...!
> >=20
> > Helge
> >=20
> >> ---
> >>=20
> >>  arch/parisc/include/uapi/asm/errno.h | 2 +-
> >>  1 file changed, 1 insertion(+), 1 deletion(-)
> >>=20
> >> diff --git a/arch/parisc/include/uapi/asm/errno.h
> >> b/arch/parisc/include/uapi/asm/errno.h index f3a8aa5..c0ae625 1006=
44
> >> --- a/arch/parisc/include/uapi/asm/errno.h
> >> +++ b/arch/parisc/include/uapi/asm/errno.h
> >> @@ -106,7 +106,7 @@
> >>=20
> >>  #define    EALREADY    244    /* Operation already in progress */=

> >>  #define    EINPROGRESS    245    /* Operation now in progress */
> >>=20
> >> -#define    EWOULDBLOCK    246    /* Operation would block (Linux =
returns
> >> EAGAIN) */ +#define    EWOULDBLOCK    EAGAIN    /* Operation would=
 block
> >> (Not HPUX compliant) */>>=20
> >>  #define    ENOTEMPTY    247    /* Directory not empty */
> >>  #define    ENAMETOOLONG    248    /* File name too long */
> >>  #define    ELOOP        249    /* Too many symbolic links encount=
ered */
>=20
> I think we should do it and fix the userspace fallout by rebuilding.

i'm not sure userspace will break ?  we've got two classes of code:
 - stuff that checks both EAGAIN & EWOULDBLOCK and treats them the same=

 - stuff that checks EAGAIN only (and probably should check both, but d=
oesn't)
both of those will continue to work after we change EWOULDBLOCK

i don't think there's really any code out there that only looks at EWOU=
LDBLOCK=20
(or does so differently from EAGAIN).  if there is, then they'd break. =
 but if=20
they never sh*t in the woods in the first place, then who cares if they=
 would=20
have made noise ? :)
=2Dmike
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From - Thu Nov 08 21:10:10 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc updates for v3.14
Date: Sat, 1 Feb 2014 21:23:20 +0100
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi Linus,

please pull the latest updates for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-for-3.14

The three major changes in this patchset is a implementation for flexible
userspace memory maps, cache-flushing fixes (again), and a long-discussed ABI
change to make EWOULDBLOCK the same value as EAGAIN.

parisc has been the only platform where we had EWOULDBLOCK != EAGAIN to keep
HP-UX compatibility.  Since we will probably never implement full HP-UX
support, we prefer to drop this compatibility to make it easier for us with
Linux userspace programs which mostly never checked for both values.  We don't
expect major fall-outs because of this change, and if we face some, we will
simply rebuild the necessary applications in the debian archives.

The change to fs/exec.c only touches code which affects parisc since it's
inside a #ifdef CONFIG_STACK_GROWSUP section (and parisc is the only platform
where the stack grows upwards).

Thanks,
Helge

----------------------------------------------------------------
Guy Martin (1):
      parisc: Make EWOULDBLOCK be equal to EAGAIN on parisc

Helge Deller (5):
      parisc/sti_console: prefer Linux fonts over built-in ROM fonts
      parisc: fix cache-flushing
      parisc: add flexible mmap memory layout support
      parisc: wire up sched_setattr and sched_getattr
      parisc: convert uapi/asm/stat.h to use native types only

 arch/parisc/include/asm/cacheflush.h  |   2 -
 arch/parisc/include/asm/elf.h         |   7 +
 arch/parisc/include/asm/page.h        |   3 +-
 arch/parisc/include/asm/pgtable.h     |   1 +
 arch/parisc/include/asm/processor.h   |   2 +
 arch/parisc/include/asm/thread_info.h |  10 ++
 arch/parisc/include/uapi/asm/errno.h  |   2 +-
 arch/parisc/include/uapi/asm/stat.h   |  40 +++---
 arch/parisc/include/uapi/asm/unistd.h |   4 +-
 arch/parisc/kernel/cache.c            |  14 ++
 arch/parisc/kernel/process.c          |  21 ++-
 arch/parisc/kernel/sys_parisc.c       | 238 ++++++++++++++++++++++++++++------
 arch/parisc/kernel/syscall_table.S    |   2 +
 drivers/video/console/sticore.c       |   2 +-
 fs/exec.c                             |   3 +
 lib/fonts/Kconfig                     |   6 +-
 16 files changed, 284 insertions(+), 73 deletions(-)
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From - Thu Nov 08 21:10:10 2018
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Subject: Re: [GIT PULL] parisc updates for v3.14
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	LKML <linux-kernel@vger.kernel.org>,
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	James Bottomley <James.Bottomley@hansenpartnership.com>
To: Helge Deller <deller@gmx.de>
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On Sat, Feb 1, 2014 at 9:23 PM, Helge Deller <deller@gmx.de> wrote:
> Hi Linus,
>
> please pull the latest updates for the parisc architecture from:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-for-3.14
>
> The three major changes in this patchset is a implementation for flexible
> userspace memory maps, cache-flushing fixes (again), and a long-discussed ABI
> change to make EWOULDBLOCK the same value as EAGAIN.
>
> parisc has been the only platform where we had EWOULDBLOCK != EAGAIN to keep
> HP-UX compatibility.  Since we will probably never implement full HP-UX
> support, we prefer to drop this compatibility to make it easier for us with
> Linux userspace programs which mostly never checked for both values.  We don't
> expect major fall-outs because of this change, and if we face some, we will
> simply rebuild the necessary applications in the debian archives.
>
> The change to fs/exec.c only touches code which affects parisc since it's
> inside a #ifdef CONFIG_STACK_GROWSUP section (and parisc is the only platform
> where the stack grows upwards).

What about metag?

> Thanks,
> Helge
>
> ----------------------------------------------------------------
> Guy Martin (1):
>       parisc: Make EWOULDBLOCK be equal to EAGAIN on parisc
>
> Helge Deller (5):
>       parisc/sti_console: prefer Linux fonts over built-in ROM fonts
>       parisc: fix cache-flushing
>       parisc: add flexible mmap memory layout support
>       parisc: wire up sched_setattr and sched_getattr
>       parisc: convert uapi/asm/stat.h to use native types only
>
>  arch/parisc/include/asm/cacheflush.h  |   2 -
>  arch/parisc/include/asm/elf.h         |   7 +
>  arch/parisc/include/asm/page.h        |   3 +-
>  arch/parisc/include/asm/pgtable.h     |   1 +
>  arch/parisc/include/asm/processor.h   |   2 +
>  arch/parisc/include/asm/thread_info.h |  10 ++
>  arch/parisc/include/uapi/asm/errno.h  |   2 +-
>  arch/parisc/include/uapi/asm/stat.h   |  40 +++---
>  arch/parisc/include/uapi/asm/unistd.h |   4 +-
>  arch/parisc/kernel/cache.c            |  14 ++
>  arch/parisc/kernel/process.c          |  21 ++-
>  arch/parisc/kernel/sys_parisc.c       | 238 ++++++++++++++++++++++++++++------
>  arch/parisc/kernel/syscall_table.S    |   2 +
>  drivers/video/console/sticore.c       |   2 +-
>  fs/exec.c                             |   3 +
>  lib/fonts/Kconfig                     |   6 +-
>  16 files changed, 284 insertions(+), 73 deletions(-)
> --
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//richard
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Subject: Re: [GIT PULL] parisc updates for v3.14
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* Richard Weinberger <richard.weinberger-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:
> On Sat, Feb 1, 2014 at 9:23 PM, Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org> wrote:
> > please pull the latest updates for the parisc architecture from:
> >
> >   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-for-3.14
> >
> > The three major changes in this patchset is a implementation for flexible
> > userspace memory maps, ....
> >
> > The change to fs/exec.c only touches code which affects parisc since it's
> > inside a #ifdef CONFIG_STACK_GROWSUP section (and parisc is the only platform
> > where the stack grows upwards).
> 
> What about metag?

Great! I didn't know that we now have another platform where the stack
grows upwards! Now we are not alone in this regard!

Anyway, the suggested & untested patch below should fix the metag arch
to cope which my changes to fs/exec.c  (unless the metag people want to
implement proper stack randomization too).  Either I can push it via the
parisc tree, or you can take it via the metag tree. Please let me know.


> > Helge Deller (5):
> >       parisc: add flexible mmap memory layout support
> > ...
> >  fs/exec.c                             |   3 +
(see:
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=for-next&id=13de8ec38997357c9865a36a587439d9c5678932 )



[PATCH] metag: define STACK_RND_MASK as -1
 
Signed-off-by: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>

diff --git a/arch/metag/include/asm/elf.h b/arch/metag/include/asm/elf.h
index d2baf69..089e37a 100644
--- a/arch/metag/include/asm/elf.h
+++ b/arch/metag/include/asm/elf.h
@@ -100,7 +100,7 @@ typedef unsigned long elf_fpregset_t;
 
 #define ELF_PLATFORM  (NULL)
 
-#define STACK_RND_MASK (0)
+#define STACK_RND_MASK (-1)
 
 #ifdef CONFIG_METAG_USER_TCM
 


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From - Thu Nov 08 21:10:10 2018
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On Sun, Feb 2, 2014 at 3:15 AM, Helge Deller <deller@gmx.de> wrote:
>
> Anyway, the suggested & untested patch below should fix the metag arch
> to cope which my changes to fs/exec.c
> ...
> -#define STACK_RND_MASK (0)
> +#define STACK_RND_MASK (-1)

I don't think that works. That completely breaks randomize_stack_top().

So I'm not going to pull the parisc tree, this needs to be resolved sanely.

In fact, I think that change to fs/exec.c is just completely broken:

+       /* add some more stack size for stack randomization */
+       stack_base += STACK_RND_MASK + 1;

and that "+1" just doesn't make sense, and fundamentally breaks STACK_RND_MASK.

It also seems to be entirely pointless, since the PAGE_ALIGN() that
comes right afterwards will effectively do it anyway.

So NAK on that whole fs/exec.c change. Afaik it's just wrong, and it's stupid.

                  Linus
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Hi Linus,

* Linus Torvalds <torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>:
> On Sun, Feb 2, 2014 at 3:15 AM, Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org> wrote:
> >
> > Anyway, the suggested & untested patch below should fix the metag arch
> > to cope which my changes to fs/exec.c
> > ...
> > -#define STACK_RND_MASK (0)
> > +#define STACK_RND_MASK (-1)
> 
> I don't think that works. That completely breaks randomize_stack_top().
> So I'm not going to pull the parisc tree, this needs to be resolved sanely.
> In fact, I think that change to fs/exec.c is just completely broken:
> +       /* add some more stack size for stack randomization */
> +       stack_base += STACK_RND_MASK + 1;
> and that "+1" just doesn't make sense, and fundamentally breaks STACK_RND_MASK.
> It also seems to be entirely pointless, since the PAGE_ALIGN() that
> comes right afterwards will effectively do it anyway.
> 
> So NAK on that whole fs/exec.c change. Afaik it's just wrong, and it's stupid.

You are completely right - I have no idea what I was thinking.
I have removed completely the changes to fs/exec.c, built up a new
tree for you to pull and boot-tested it with 32- and 64bit parisc kernels.

Can you please consider pulling this new tree?
The full request follows here:
-------

Hi Linus,

please pull the latest updates for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.14

The three major changes in this patchset is a implementation for
flexible userspace memory maps, cache-flushing fixes (again), and a
long-discussed ABI change to make EWOULDBLOCK the same value as EAGAIN.

parisc has been the only platform where we had EWOULDBLOCK != EAGAIN to
keep HP-UX compatibility.  Since we will probably never implement full
HP-UX support, we prefer to drop this compatibility to make it easier
for us with Linux userspace programs which mostly never checked for both
values.  We don't expect major fall-outs because of this change, and if
we face some, we will simply rebuild the necessary applications in the
debian archives.

Thanks,
Helge

----------------------------------------------------------------
Guy Martin (1):
      parisc: Make EWOULDBLOCK be equal to EAGAIN on parisc

Helge Deller (5):
      parisc/sti_console: prefer Linux fonts over built-in ROM fonts
      parisc: fix cache-flushing
      parisc: wire up sched_setattr and sched_getattr
      parisc: convert uapi/asm/stat.h to use native types only
      parisc: add flexible mmap memory layout support

 arch/parisc/include/asm/cacheflush.h  |   2 -
 arch/parisc/include/asm/elf.h         |   4 +
 arch/parisc/include/asm/page.h        |   3 +-
 arch/parisc/include/asm/pgtable.h     |   1 +
 arch/parisc/include/asm/processor.h   |   2 +
 arch/parisc/include/asm/thread_info.h |  10 ++
 arch/parisc/include/uapi/asm/errno.h  |   2 +-
 arch/parisc/include/uapi/asm/stat.h   |  40 +++---
 arch/parisc/include/uapi/asm/unistd.h |   4 +-
 arch/parisc/kernel/cache.c            |  14 ++
 arch/parisc/kernel/process.c          |  21 ++-
 arch/parisc/kernel/sys_parisc.c       | 238 ++++++++++++++++++++++++++++------
 arch/parisc/kernel/syscall_table.S    |   2 +
 drivers/video/console/sticore.c       |   2 +-
 lib/fonts/Kconfig                     |   6 +-
 15 files changed, 278 insertions(+), 73 deletions(-)
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From - Thu Nov 08 21:10:10 2018
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Newsgroups: gmane.linux.kernel.next,gmane.linux.ports.parisc,gmane.linux.kernel
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Hi all,

Today's linux-next merge of the parisc-hd tree got a conflict in
arch/parisc/include/asm/elf.h between commit 9dabf60dc4ab ("parisc: add
flexible mmap memory layout support") from Linus' tree and commit
13de8ec38997 ("parisc: add flexible mmap memory layout support") from the
parisc-hd tree.

It seems that this tree was rebased before being sent to Linus (I
understand why) so I will just drop the whole parisc tree for today.
Please just tidy up.

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

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On 02/04/2014 01:27 AM, Stephen Rothwell wrote:
> Today's linux-next merge of the parisc-hd tree got a conflict in
> arch/parisc/include/asm/elf.h between commit 9dabf60dc4ab ("parisc: add
> flexible mmap memory layout support") from Linus' tree and commit
> 13de8ec38997 ("parisc: add flexible mmap memory layout support") from the
> parisc-hd tree.
> 
> It seems that this tree was rebased before being sent to Linus (I
> understand why) so I will just drop the whole parisc tree for today.
> Please just tidy up.

Thanks Stephen!

I just cleaned it up.

Helge
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: Kernel panic with 3.13.2 and SLAB
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Hi,

I've recently upgraded from 3.12.4 to 3.13.2 and the kernel did not boot 
with the exact same config.

Here is an excerpt of the panic :

[    9.080000] ------------[ cut here ]------------
[    9.208000] WARNING: at mm/slab.c:2614
[    9.208000] Modules linked in:
[    9.348000] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 3.13.2 #1
[    9.348000] task: 000000007fc75178 ti: 000000007fc78000 task.ti: 
000000007fc78000
[    9.488000]
[    9.488000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[    9.624000] PSW: 00001000000001000000000000001110 Not tainted
[    9.624000] r00-03  000000000804000e 0000000000000000 
00000000402862b4 000000007fc78650
[    9.764000] r04-07  000000004091a300 000000007fc02080 
00000001437e40e0 0000000040a64030
[    9.904000] r08-11  000000007fd4da00 00000001437e4100 
000000000000000f 000f000000000000
[   10.044000] r12-15  000000007fc02088 ffffffffc0000000 
0000000000100100 000000004096a300
[   10.044000] r16-19  0000000040969b00 00000000000001ff 
0000000040969b00 0000000000000001
[   10.184000] r20-23  0000000000000000 000000007fc020a8 
0000000000000001 bff405fd00000000
[   10.320000] r24-27  000000007fc78740 00000000006fc81c 
00000000007fc020 000000004091a300
[   10.460000] r28-31  000000023f804040 00000000409c2740 
000000007fc78770 000000007fc020a8
[   10.604000] sr00-03  0000000000000000 0000000000000000 
0000000000000000 0000000000000000
[   10.604000] sr04-07  0000000000000000 0000000000000000 
0000000000000000 0000000000000000
[   10.740000]
[   10.740000] IASQ: 0000000000000000 0000000000000000 IAOQ: 
00000000402864f8 00000000402864fc
[   10.880000]  IIR: 03ffe01f    ISR: 0000000010240000  IOR: 
0000040df93e40f8
[   11.016000]  CPU:        3   CR30: 000000007fc78000 CR31: 
ffffffffdffffaef
[   11.156000]  ORIG_R28: 000000004096a300
[   11.156000]  IAOQ[0]: cache_alloc_refill+0x4c8/0xbf8
[   11.296000]  IAOQ[1]: cache_alloc_refill+0x4cc/0xbf8
[   11.296000]  RP(r2): cache_alloc_refill+0x284/0xbf8
[   11.436000] Backtrace:
[   11.436000]  [<0000000040285fa8>] kmem_cache_alloc+0x1c8/0x250
[   11.436000]  [<0000000040257100>] kmem_cache_create_memcg+0xd0/0x3a8
[   11.576000]  [<000000004025742c>] kmem_cache_create+0x54/0x68
[   11.712000]  [<000000004011daf4>] 0x4011daf4
[   11.712000]  [<000000004015d0b4>] do_one_initcall+0x1ac/0x230
[   11.756000] random: nonblocking pool is initialized
[   11.852000]  [<0000000040101a5c>] 0x40101a5c
[   11.992000]  [<0000000040152d38>] kernel_init+0x30/0x2a0
[   11.992000]  [<000000004014b020>] end_fault_vector+0x20/0xc0
[   12.132000]  [<0000000040152d08>] kernel_init+0x0/0x2a0
[   12.132000]
[   12.132000] ---[ end trace 436196ee1e834c21 ]---



The full kernel logs can be found here : http://bpaste.net/show/177607/


And kconfig here : http://bpaste.net/show/177929/


I switched from SLAB to SLUB and the problem went away. However, this 
used to work in 3.12.4.


Regards,
   Guy



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> Next week I'll try 3.13, but since it has the same changes I expect the same
> results.

I'm now on 3.13.2 and things are similar. While I did an initial test with 100 
invocations of ssh which went flawlessly I now see random process errors again. 
Examples can be found here: 
http://my.cdash.org/index.php?project=Qsmtp&date=2014-02-11

Normally the reports should have arrived much earlier, but for an unknown 
reason the resolv.conf (generated by DHCP) was empty, I assume that the DHCP 
process has failed during while renewing the IP address. The segfaults during 
the build have not happened with the older kernel.

Greetings,

Eike
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From - Thu Nov 08 21:10:11 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Kernel panic with 3.13.2 and SLAB
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On 02/11/2014 11:52 AM, Guy Martin wrote:
> Hi,
> 
> I've recently upgraded from 3.12.4 to 3.13.2 and the kernel did not boot with the exact same config.

There has often been problems reported with 

WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
would be interesting to know what the values of nodeid and page_to_nid() are..

Anyway, I think this needs debugging by someone who knows the details of SLAB.

And, please make sure that this patch is included 
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=for-next&id=57737c49dd72c96cfbcd4f66559f3ffc399aeb4f

Helge


> Here is an excerpt of the panic :
> 
> [    9.080000] ------------[ cut here ]------------
> [    9.208000] WARNING: at mm/slab.c:2614
> [    9.208000] Modules linked in:
> [    9.348000] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 3.13.2 #1
> [    9.348000] task: 000000007fc75178 ti: 000000007fc78000 task.ti: 000000007fc78000
> [    9.488000]
> [    9.488000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [    9.624000] PSW: 00001000000001000000000000001110 Not tainted
> [    9.624000] r00-03  000000000804000e 0000000000000000 00000000402862b4 000000007fc78650
> [    9.764000] r04-07  000000004091a300 000000007fc02080 00000001437e40e0 0000000040a64030
> [    9.904000] r08-11  000000007fd4da00 00000001437e4100 000000000000000f 000f000000000000
> [   10.044000] r12-15  000000007fc02088 ffffffffc0000000 0000000000100100 000000004096a300
> [   10.044000] r16-19  0000000040969b00 00000000000001ff 0000000040969b00 0000000000000001
> [   10.184000] r20-23  0000000000000000 000000007fc020a8 0000000000000001 bff405fd00000000
> [   10.320000] r24-27  000000007fc78740 00000000006fc81c 00000000007fc020 000000004091a300
> [   10.460000] r28-31  000000023f804040 00000000409c2740 000000007fc78770 000000007fc020a8
> [   10.604000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> [   10.604000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> [   10.740000]
> [   10.740000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402864f8 00000000402864fc
> [   10.880000]  IIR: 03ffe01f    ISR: 0000000010240000  IOR: 0000040df93e40f8
> [   11.016000]  CPU:        3   CR30: 000000007fc78000 CR31: ffffffffdffffaef
> [   11.156000]  ORIG_R28: 000000004096a300
> [   11.156000]  IAOQ[0]: cache_alloc_refill+0x4c8/0xbf8
> [   11.296000]  IAOQ[1]: cache_alloc_refill+0x4cc/0xbf8
> [   11.296000]  RP(r2): cache_alloc_refill+0x284/0xbf8
> [   11.436000] Backtrace:
> [   11.436000]  [<0000000040285fa8>] kmem_cache_alloc+0x1c8/0x250
> [   11.436000]  [<0000000040257100>] kmem_cache_create_memcg+0xd0/0x3a8
> [   11.576000]  [<000000004025742c>] kmem_cache_create+0x54/0x68
> [   11.712000]  [<000000004011daf4>] 0x4011daf4
> [   11.712000]  [<000000004015d0b4>] do_one_initcall+0x1ac/0x230
> [   11.756000] random: nonblocking pool is initialized
> [   11.852000]  [<0000000040101a5c>] 0x40101a5c
> [   11.992000]  [<0000000040152d38>] kernel_init+0x30/0x2a0
> [   11.992000]  [<000000004014b020>] end_fault_vector+0x20/0xc0
> [   12.132000]  [<0000000040152d08>] kernel_init+0x0/0x2a0
> [   12.132000]
> [   12.132000] ---[ end trace 436196ee1e834c21 ]---
> 
> 
> 
> The full kernel logs can be found here : http://bpaste.net/show/177607/
> 
> 
> And kconfig here : http://bpaste.net/show/177929/
> 
> 
> I switched from SLAB to SLUB and the problem went away. However, this used to work in 3.12.4.

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From - Thu Nov 08 21:10:11 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Kernel panic with 3.13.2 and SLAB
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On 02/11/2014 08:41 PM, Helge Deller wrote:
> On 02/11/2014 11:52 AM, Guy Martin wrote:
>> Hi,
>>
>> I've recently upgraded from 3.12.4 to 3.13.2 and the kernel did not boot with the exact same config.
> 
> There has often been problems reported with 

This should read:
There has often been problems reported with SLAB.
I think I ran into this once too. 

> 
> WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
> would be interesting to know what the values of nodeid and page_to_nid() are..
> 
> Anyway, I think this needs debugging by someone who knows the details of SLAB.
> 
> And, please make sure that this patch is included 
> http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=for-next&id=57737c49dd72c96cfbcd4f66559f3ffc399aeb4f
> 
> Helge
> 
> 
>> Here is an excerpt of the panic :
>>
>> [    9.080000] ------------[ cut here ]------------
>> [    9.208000] WARNING: at mm/slab.c:2614
>> [    9.208000] Modules linked in:
>> [    9.348000] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 3.13.2 #1
>> [    9.348000] task: 000000007fc75178 ti: 000000007fc78000 task.ti: 000000007fc78000
>> [    9.488000]
>> [    9.488000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>> [    9.624000] PSW: 00001000000001000000000000001110 Not tainted
>> [    9.624000] r00-03  000000000804000e 0000000000000000 00000000402862b4 000000007fc78650
>> [    9.764000] r04-07  000000004091a300 000000007fc02080 00000001437e40e0 0000000040a64030
>> [    9.904000] r08-11  000000007fd4da00 00000001437e4100 000000000000000f 000f000000000000
>> [   10.044000] r12-15  000000007fc02088 ffffffffc0000000 0000000000100100 000000004096a300
>> [   10.044000] r16-19  0000000040969b00 00000000000001ff 0000000040969b00 0000000000000001
>> [   10.184000] r20-23  0000000000000000 000000007fc020a8 0000000000000001 bff405fd00000000
>> [   10.320000] r24-27  000000007fc78740 00000000006fc81c 00000000007fc020 000000004091a300
>> [   10.460000] r28-31  000000023f804040 00000000409c2740 000000007fc78770 000000007fc020a8
>> [   10.604000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
>> [   10.604000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
>> [   10.740000]
>> [   10.740000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402864f8 00000000402864fc
>> [   10.880000]  IIR: 03ffe01f    ISR: 0000000010240000  IOR: 0000040df93e40f8
>> [   11.016000]  CPU:        3   CR30: 000000007fc78000 CR31: ffffffffdffffaef
>> [   11.156000]  ORIG_R28: 000000004096a300
>> [   11.156000]  IAOQ[0]: cache_alloc_refill+0x4c8/0xbf8
>> [   11.296000]  IAOQ[1]: cache_alloc_refill+0x4cc/0xbf8
>> [   11.296000]  RP(r2): cache_alloc_refill+0x284/0xbf8
>> [   11.436000] Backtrace:
>> [   11.436000]  [<0000000040285fa8>] kmem_cache_alloc+0x1c8/0x250
>> [   11.436000]  [<0000000040257100>] kmem_cache_create_memcg+0xd0/0x3a8
>> [   11.576000]  [<000000004025742c>] kmem_cache_create+0x54/0x68
>> [   11.712000]  [<000000004011daf4>] 0x4011daf4
>> [   11.712000]  [<000000004015d0b4>] do_one_initcall+0x1ac/0x230
>> [   11.756000] random: nonblocking pool is initialized
>> [   11.852000]  [<0000000040101a5c>] 0x40101a5c
>> [   11.992000]  [<0000000040152d38>] kernel_init+0x30/0x2a0
>> [   11.992000]  [<000000004014b020>] end_fault_vector+0x20/0xc0
>> [   12.132000]  [<0000000040152d08>] kernel_init+0x0/0x2a0
>> [   12.132000]
>> [   12.132000] ---[ end trace 436196ee1e834c21 ]---
>>
>>
>>
>> The full kernel logs can be found here : http://bpaste.net/show/177607/
>>
>>
>> And kconfig here : http://bpaste.net/show/177929/
>>
>>
>> I switched from SLAB to SLUB and the problem went away. However, this used to work in 3.12.4.
> 
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Subject: Re: Kernel panic with 3.13.2 and SLAB
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Actually, if you look at the log, the system panics because of a delayed 
timer interrupt and soft lockup
on CPU#3.  Probably, there is a lock issue associated with warning that 
causes lock up.

Dave

On 2/11/2014 2:41 PM, Helge Deller wrote:
> On 02/11/2014 11:52 AM, Guy Martin wrote:
>> Hi,
>>
>> I've recently upgraded from 3.12.4 to 3.13.2 and the kernel did not boot with the exact same config.
> There has often been problems reported with
>
> WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
> would be interesting to know what the values of nodeid and page_to_nid() are..
>
> Anyway, I think this needs debugging by someone who knows the details of SLAB.
>
> And, please make sure that this patch is included
> http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=for-next&id=57737c49dd72c96cfbcd4f66559f3ffc399aeb4f
>
> Helge
>
>
>> Here is an excerpt of the panic :
>>
>> [    9.080000] ------------[ cut here ]------------
>> [    9.208000] WARNING: at mm/slab.c:2614
>> [    9.208000] Modules linked in:
>> [    9.348000] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 3.13.2 #1
>> [    9.348000] task: 000000007fc75178 ti: 000000007fc78000 task.ti: 000000007fc78000
>> [    9.488000]
>> [    9.488000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>> [    9.624000] PSW: 00001000000001000000000000001110 Not tainted
>> [    9.624000] r00-03  000000000804000e 0000000000000000 00000000402862b4 000000007fc78650
>> [    9.764000] r04-07  000000004091a300 000000007fc02080 00000001437e40e0 0000000040a64030
>> [    9.904000] r08-11  000000007fd4da00 00000001437e4100 000000000000000f 000f000000000000
>> [   10.044000] r12-15  000000007fc02088 ffffffffc0000000 0000000000100100 000000004096a300
>> [   10.044000] r16-19  0000000040969b00 00000000000001ff 0000000040969b00 0000000000000001
>> [   10.184000] r20-23  0000000000000000 000000007fc020a8 0000000000000001 bff405fd00000000
>> [   10.320000] r24-27  000000007fc78740 00000000006fc81c 00000000007fc020 000000004091a300
>> [   10.460000] r28-31  000000023f804040 00000000409c2740 000000007fc78770 000000007fc020a8
>> [   10.604000] sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
>> [   10.604000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
>> [   10.740000]
>> [   10.740000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402864f8 00000000402864fc
>> [   10.880000]  IIR: 03ffe01f    ISR: 0000000010240000  IOR: 0000040df93e40f8
>> [   11.016000]  CPU:        3   CR30: 000000007fc78000 CR31: ffffffffdffffaef
>> [   11.156000]  ORIG_R28: 000000004096a300
>> [   11.156000]  IAOQ[0]: cache_alloc_refill+0x4c8/0xbf8
>> [   11.296000]  IAOQ[1]: cache_alloc_refill+0x4cc/0xbf8
>> [   11.296000]  RP(r2): cache_alloc_refill+0x284/0xbf8
>> [   11.436000] Backtrace:
>> [   11.436000]  [<0000000040285fa8>] kmem_cache_alloc+0x1c8/0x250
>> [   11.436000]  [<0000000040257100>] kmem_cache_create_memcg+0xd0/0x3a8
>> [   11.576000]  [<000000004025742c>] kmem_cache_create+0x54/0x68
>> [   11.712000]  [<000000004011daf4>] 0x4011daf4
>> [   11.712000]  [<000000004015d0b4>] do_one_initcall+0x1ac/0x230
>> [   11.756000] random: nonblocking pool is initialized
>> [   11.852000]  [<0000000040101a5c>] 0x40101a5c
>> [   11.992000]  [<0000000040152d38>] kernel_init+0x30/0x2a0
>> [   11.992000]  [<000000004014b020>] end_fault_vector+0x20/0xc0
>> [   12.132000]  [<0000000040152d08>] kernel_init+0x0/0x2a0
>> [   12.132000]
>> [   12.132000] ---[ end trace 436196ee1e834c21 ]---
>>
>>
>>
>> The full kernel logs can be found here : http://bpaste.net/show/177607/
>>
>>
>> And kconfig here : http://bpaste.net/show/177929/
>>
>>
>> I switched from SLAB to SLUB and the problem went away. However, this used to work in 3.12.4.
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On 2/11/2014 2:52 PM, Helge Deller wrote:
> I think I ran into this once too.
I saw a similar timer lockup on rp3440 this weekend, but it went
away on next reboot.

Dave

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On Wed, 29 Jan 2014 16:09:24 -0500
John David Anglin <dave.anglin@bell.net> wrote:

> On 1/29/2014 3:44 PM, Helge Deller wrote:
> > Can you try
> > BL ftrace_return_to_handler, %r0
> > (I'm not good in hppa assembly - as you can see if you take a look
> > at this assembly code section :-)).
> >
> BL might not reach on PA 1.1.  The PA 2.0 b,l instruction is only
> "long" when the link
> register is %rp and it is used for the return_trampoline.
> 
> I would say replace "b" with the following as it will always reach
> target: load32  ftrace_return_to_handler, %r20
>          bv      %r0(%r20)
> 
> %r1 is another register alternative.


Thanks, however, I later found out that this part of the code isn't
used if you set CONFIG_FUNCTION_GRAPH_TRACER=n.


In my config, I've enabled only this :
CONFIG_FTRACE=y
CONFIG_FUNCTION_TRACER=y

Full config can be found here : http://bpaste.net/show/178555/


So far I came up with the attached patch to try to get a booting kernel
but I don't even have the first line being printed, the box HPMC and
reboot.


As far as I understand, compiling with -pg will make each function jump
to _mcount before being actually executed. This is why I tried to make
the _mcount function simply jump back to %rp but this doesn't seem to
be helpful.


What am I missing here ?

  GUy

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diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index bc989e5..6d23a1a 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -1,5 +1,8 @@
 menu "Kernel hacking"
 
+config TRACE_IRQFLAGS_SUPPORT
+	def_bool y
+
 source "lib/Kconfig.debug"
 
 config DEBUG_RODATA
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index e8f07dd..bdb4d33 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1999,11 +1999,15 @@ ENDPROC(syscall_exit)
 #ifdef CONFIG_FUNCTION_TRACER
 	.import ftrace_function_trampoline,code
 ENTRY(_mcount)
+	bv	%r0(%rp)
+	nop
+	/* not reached */
 	copy	%r3, %arg2
 	b	ftrace_function_trampoline
 	nop
 ENDPROC(_mcount)
 
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
 ENTRY(return_to_handler)
 	load32	return_trampoline, %rp
 	copy	%ret0, %arg0
@@ -2019,7 +2023,19 @@ return_trampoline:
 ftrace_stub:
 	bv	%r0(%rp)
 	nop
+#else /* CONFIG_FUNCTION_GRAPH_TRACER */
+
+ENTRY(ftrace_stub)
+	bv	%r0(%rp)
+	nop
+ENDPROC(ftrace_stub)
+
+#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
 ENDPROC(return_to_handler)
+#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
+
 #endif	/* CONFIG_FUNCTION_TRACER */
 
 #ifdef CONFIG_IRQSTACKS
diff --git a/arch/parisc/kernel/ftrace.c b/arch/parisc/kernel/ftrace.c
index 5beb97b..8c9f757 100644
--- a/arch/parisc/kernel/ftrace.c
+++ b/arch/parisc/kernel/ftrace.c
@@ -156,7 +156,7 @@ void ftrace_function_trampoline(unsigned long parent,
 		return;
 
 	if (ftrace_trace_function != ftrace_stub) {
-		ftrace_trace_function(parent, self_addr);
+		ftrace_trace_function(parent, self_addr, NULL, NULL);
 		return;
 	}
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER

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Am Dienstag, 11. Februar 2014, 16:30:08 schrieb Rolf Eike Beer:
> > Next week I'll try 3.13, but since it has the same changes I expect the
> > same results.
> 
> I'm now on 3.13.2 and things are similar. While I did an initial test with
> 100 invocations of ssh which went flawlessly I now see random process
> errors again. Examples can be found here:
> http://my.cdash.org/index.php?project=Qsmtp&date=2014-02-11
> 
> Normally the reports should have arrived much earlier, but for an unknown
> reason the resolv.conf (generated by DHCP) was empty, I assume that the DHCP
> process has failed during while renewing the IP address. The segfaults
> during the build have not happened with the older kernel.

I can now confirm that the cache coherency fixes are _not_ the reason for those 
failures I see. I have rebuild 3.13.2 without them and still see random 
segfaults in my dashboards. I'll try the mmap() patch next.

Eike
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From: Christoph Lameter <cl@linux.com>
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Cc: akpm@linuxfoundation.org, rostedt@goodmis.org,
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Convert to the use of this_cpu_ptr().

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Christoph Lameter <cl@linux.com>

Index: linux/arch/parisc/lib/memcpy.c
===================================================================
--- linux.orig/arch/parisc/lib/memcpy.c	2013-12-02 16:07:49.844632157 -0600
+++ linux/arch/parisc/lib/memcpy.c	2013-12-02 16:07:49.844632157 -0600
@@ -470,7 +470,7 @@ static unsigned long pa_memcpy(void *dst
 		return 0;
 
 	/* if a load or store fault occured we can get the faulty addr */
-	d = &__get_cpu_var(exception_data);
+	d = this_cpu_ptr(&exception_data);
 	fault_addr = d->fault_addr;
 
 	/* error in load or store? */
Index: linux/arch/parisc/mm/fault.c
===================================================================
--- linux.orig/arch/parisc/mm/fault.c	2013-12-02 16:07:49.844632157 -0600
+++ linux/arch/parisc/mm/fault.c	2013-12-02 16:07:49.844632157 -0600
@@ -151,7 +151,7 @@ int fixup_exception(struct pt_regs *regs
 	fix = search_exception_tables(regs->iaoq[0]);
 	if (fix) {
 		struct exception_data *d;
-		d = &__get_cpu_var(exception_data);
+		d = this_cpu_ptr(&exception_data);
 		d->fault_ip = regs->iaoq[0];
 		d->fault_space = regs->isr;
 		d->fault_addr = regs->ior;


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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Am Donnerstag, 13. Februar 2014, 07:37:55 schrieb Rolf Eike Beer:
> Am Dienstag, 11. Februar 2014, 16:30:08 schrieb Rolf Eike Beer:
> > > Next week I'll try 3.13, but since it has the same changes I expect the
> > > same results.
> > 
> > I'm now on 3.13.2 and things are similar. While I did an initial test with
> > 100 invocations of ssh which went flawlessly I now see random process
> > errors again. Examples can be found here:
> > http://my.cdash.org/index.php?project=Qsmtp&date=2014-02-11
> > 
> > Normally the reports should have arrived much earlier, but for an unknown
> > reason the resolv.conf (generated by DHCP) was empty, I assume that the
> > DHCP process has failed during while renewing the IP address. The
> > segfaults during the build have not happened with the older kernel.
> 
> I can now confirm that the cache coherency fixes are _not_ the reason for
> those failures I see. I have rebuild 3.13.2 without them and still see
> random segfaults in my dashboards. I'll try the mmap() patch next.

After 2,5 days with 3.13.2 and 0576da2c08e3d332f1b0653030d28ab804585ab6 I have 
not yet seen a single random segfault.

Eike
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From - Thu Nov 08 21:10:11 2018
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From - Thu Nov 08 21:10:11 2018
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From: "Martin K. Petersen" <mkp@mkp.net>
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Subject: palinux offline
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palinux.external.hp.com has been offline for several days now and mail
to parisc-linux.org has started to bounce as a result. I'm not sure
whether HP finally pulled the plug or what?

I did message T-Bone a few days ago when I noticed my mail queue was
growing but haven't heard back...

-- 
Martin K. Petersen	Oracle Linux Engineering

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From - Thu Nov 08 21:10:11 2018
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On 2/19/2014 12:32 PM, Martin K. Petersen wrote:
> palinux.external.hp.com has been offline for several days now and mail
> to parisc-linux.org has started to bounce as a result. I'm not sure
> whether HP finally pulled the plug or what?
The machine crashed and may have a hardware problem.  I don't believe HP
pulled the plug.  Brett Johnson of HP has been looking at it.

The plan was to switch to the mirror at ESIEE on March 1.  Probably, now 
would be
a good time to switch if Thibaut is available.

Dave

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John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:10:12 2018
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On 2/19/14 12:15 PM, John David Anglin wrote:
> On 2/19/2014 12:32 PM, Martin K. Petersen wrote:
>> palinux.external.hp.com has been offline for several days now and mail
>> to parisc-linux.org has started to bounce as a result. I'm not sure
>> whether HP finally pulled the plug or what?
> The machine crashed and may have a hardware problem.  I don't believe HP
> pulled the plug.  Brett Johnson of HP has been looking at it.
>
> The plan was to switch to the mirror at ESIEE on March 1.  Probably, now
> would be
> a good time to switch if Thibaut is available.
>
> Dave
>

At least I'm not the only one having hardware issues... got my J6750 
back online a little while ago after a power supply repair and some 
memory re-config. :-)

Dave L.

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ICQ: 676030523


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From - Thu Nov 08 21:10:12 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: palinux offline
Date: Wed, 19 Feb 2014 20:48:39 +0100
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To: John David Anglin <dave.anglin@bell.net>,
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On 02/19/2014 08:15 PM, John David Anglin wrote:
> On 2/19/2014 12:32 PM, Martin K. Petersen wrote:
>> palinux.external.hp.com has been offline for several days now and mail
>> to parisc-linux.org has started to bounce as a result. I'm not sure
>> whether HP finally pulled the plug or what?
> The machine crashed and may have a hardware problem.  I don't believe HP
> pulled the plug.  Brett Johnson of HP has been looking at it.
> 
> The plan was to switch to the mirror at ESIEE on March 1.  Probably, now would be
> a good time to switch if Thibaut is available.

By the way, we are in progress to (hopefully) get the machine hosted at OSUOSL.org.
That the machine might have a problem is currently not good for that plan though.

If the machine arrives at OSUOSL the website and everything will be gone since
I plan to reinstall it with debian unstable and set it up as buildd.
Website is already at https://parisc.wiki.kernel.org/

Helge
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From - Thu Nov 08 21:10:12 2018
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From: "Martin K. Petersen" <mkp@mkp.net>
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Subject: Re: palinux offline
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>>>>> "Helge" == Helge Deller <deller@gmx.de> writes:

Helge> That the machine might have a problem is currently not good for
Helge> that plan though.

I still have a J6700 that's up for grabs but it's here in Montreal which
complicates logistics things a bit. And we won't have remote management
like on the old machine.

-- 
Martin K. Petersen	Oracle Linux Engineering
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From - Thu Nov 08 21:10:12 2018
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From: AKASHI Takahiro <takahiro.akashi@linaro.org>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.redhat.security.audit,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user
Subject: [PATCH v2 0/1] audit: Add CONFIG_HAVE_ARCH_AUDITSYSCALL
Date: Tue, 25 Feb 2014 18:16:23 +0900
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Xref: news.gmane.org gmane.linux.ports.alpha:2236 gmane.linux.ports.arm.kernel:304459 gmane.linux.kernel:1655060 gmane.linux.redhat.security.audit:5953 gmane.linux.ports.ia64:23635 gmane.linux.ports.parisc:5701 gmane.linux.ports.ppc64.devel:99789 gmane.linux.ports.sh.devel:32694 gmane.linux.ports.sparc:18704 gmane.linux.uml.devel:14360 gmane.linux.uml.user:14635
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/2236>

Currently AUDITSYSCALL has a long list of architecture depencency:
       depends on AUDIT && (X86 || PARISC || PPC || S390 || IA64 || UML ||
                SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT) || ALPHA)
The purpose of this patch is to replace it with HAVE_ARCH_AUDITSYSCALL
for simplicity.

Changes v1 -> v2:
* rebased to 3.14-rcX, and so added a change on ALPHA

AKASHI Takahiro (1):
  audit: Add CONFIG_HAVE_ARCH_AUDITSYSCALL

 arch/alpha/Kconfig     |    1 +
 arch/arm/Kconfig       |    1 +
 arch/ia64/Kconfig      |    1 +
 arch/parisc/Kconfig    |    1 +
 arch/powerpc/Kconfig   |    1 +
 arch/s390/Kconfig      |    1 +
 arch/sh/Kconfig        |    1 +
 arch/sparc/Kconfig     |    1 +
 arch/um/Kconfig.common |    1 +
 arch/x86/Kconfig       |    1 +
 init/Kconfig           |    5 ++++-
 11 files changed, 14 insertions(+), 1 deletion(-)

-- 
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From - Thu Nov 08 21:10:12 2018
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From: AKASHI Takahiro <takahiro.akashi@linaro.org>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.redhat.security.audit,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user
Subject: [PATCH v2 1/1] audit: Add CONFIG_HAVE_ARCH_AUDITSYSCALL
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Xref: news.gmane.org gmane.linux.ports.sh.devel:32695 gmane.linux.ports.arm.kernel:304460 gmane.linux.kernel:1655061 gmane.linux.redhat.security.audit:5954 gmane.linux.ports.alpha:2237 gmane.linux.ports.ia64:23636 gmane.linux.ports.parisc:5702 gmane.linux.ports.ppc64.devel:99790 gmane.linux.ports.sparc:18705 gmane.linux.uml.devel:14361 gmane.linux.uml.user:14636
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/32695>

Currently AUDITSYSCALL has a long list of architecture depencency:
       depends on AUDIT && (X86 || PARISC || PPC || S390 || IA64 || UML ||
		SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT) || ALPHA)
The purpose of this patch is to replace it with HAVE_ARCH_AUDITSYSCALL
for simplicity.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
---
 arch/alpha/Kconfig     |    1 +
 arch/arm/Kconfig       |    1 +
 arch/ia64/Kconfig      |    1 +
 arch/parisc/Kconfig    |    1 +
 arch/powerpc/Kconfig   |    1 +
 arch/s390/Kconfig      |    1 +
 arch/sh/Kconfig        |    1 +
 arch/sparc/Kconfig     |    1 +
 arch/um/Kconfig.common |    1 +
 arch/x86/Kconfig       |    1 +
 init/Kconfig           |    5 ++++-
 11 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index f6c6b34..b7ff9a3 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -22,6 +22,7 @@ config ALPHA
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
+	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_RELA
 	select ODD_RT_SIGACTION
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index e254198..ca79340 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -24,6 +24,7 @@ config ARM
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
 	select HARDIRQS_SW_RESEND
+	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
 	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 0c8e553..5409bf4 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -44,6 +44,7 @@ config IA64
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_RELA
 	select ARCH_USE_CMPXCHG_LOCKREF
+	select HAVE_ARCH_AUDITSYSCALL
 	default y
 	help
 	  The Itanium Processor Family is Intel's 64-bit successor to
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index bb2a8ec..1faefed 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -28,6 +28,7 @@ config PARISC
 	select CLONE_BACKWARDS
 	select TTY # Needed for pdc_cons.c
 	select HAVE_DEBUG_STACKOVERFLOW
+	select HAVE_ARCH_AUDITSYSCALL
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 957bf34..7b3b8fe 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -141,6 +141,7 @@ config PPC
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_IRQ_EXIT_ON_IRQ_STACK
 	select ARCH_USE_CMPXCHG_LOCKREF if PPC64
+	select HAVE_ARCH_AUDITSYSCALL
 
 config GENERIC_CSUM
 	def_bool CPU_LITTLE_ENDIAN
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 65a0775..1b58568 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -103,6 +103,7 @@ config S390
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_TIME_VSYSCALL
 	select HAVE_ALIGNED_STRUCT_PAGE if SLUB
+	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
 	select HAVE_ARCH_SECCOMP_FILTER
 	select HAVE_ARCH_TRACEHOOK
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 6357710..4addd87 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -42,6 +42,7 @@ config SUPERH
 	select MODULES_USE_ELF_RELA
 	select OLD_SIGSUSPEND
 	select OLD_SIGACTION
+	select HAVE_ARCH_AUDITSYSCALL
 	help
 	  The SuperH is a RISC processor targeted for use in embedded systems
 	  and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index c51efdc..9c74d6b 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -77,6 +77,7 @@ config SPARC64
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select HAVE_C_RECORDMCOUNT
 	select NO_BOOTMEM
+	select HAVE_ARCH_AUDITSYSCALL
 
 config ARCH_DEFCONFIG
 	string
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index 21ca44c..6915d28 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -1,6 +1,7 @@
 config UML
 	bool
 	default y
+	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_UID16
 	select GENERIC_IRQ_SHOW
 	select GENERIC_CPU_DEVICES
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 0af5250..2938365 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -127,6 +127,7 @@ config X86
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_IRQ_EXIT_ON_IRQ_STACK if X86_64
 	select HAVE_CC_STACKPROTECTOR
+	select HAVE_ARCH_AUDITSYSCALL
 
 config INSTRUCTION_DECODER
 	def_bool y
diff --git a/init/Kconfig b/init/Kconfig
index 009a797..d4ec53d 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -282,9 +282,12 @@ config AUDIT
 	  logging of avc messages output).  Does not do system-call
 	  auditing without CONFIG_AUDITSYSCALL.
 
+config HAVE_ARCH_AUDITSYSCALL
+	bool
+
 config AUDITSYSCALL
 	bool "Enable system-call auditing support"
-	depends on AUDIT && (X86 || PARISC || PPC || S390 || IA64 || UML || SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT) || ALPHA)
+	depends on AUDIT && HAVE_ARCH_AUDITSYSCALL
 	default y if SECURITY_SELINUX
 	help
 	  Enable low-overhead system-call auditing infrastructure that
-- 
1.7.9.5

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Subject: Re: [PATCH v2 1/1] audit: Add CONFIG_HAVE_ARCH_AUDITSYSCALL
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Subject: Re: [PATCH v2 1/1] audit: Add CONFIG_HAVE_ARCH_AUDITSYSCALL
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On 14/02/25, AKASHI Takahiro wrote:
> Currently AUDITSYSCALL has a long list of architecture depencency:
>        depends on AUDIT && (X86 || PARISC || PPC || S390 || IA64 || UML ||
> 		SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT) || ALPHA)
> The purpose of this patch is to replace it with HAVE_ARCH_AUDITSYSCALL
> for simplicity.
> 
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>

Acked-by: Richard Guy Briggs <rgb@redhat.com>

> ---
>  arch/alpha/Kconfig     |    1 +
>  arch/arm/Kconfig       |    1 +
>  arch/ia64/Kconfig      |    1 +
>  arch/parisc/Kconfig    |    1 +
>  arch/powerpc/Kconfig   |    1 +
>  arch/s390/Kconfig      |    1 +
>  arch/sh/Kconfig        |    1 +
>  arch/sparc/Kconfig     |    1 +
>  arch/um/Kconfig.common |    1 +
>  arch/x86/Kconfig       |    1 +
>  init/Kconfig           |    5 ++++-
>  11 files changed, 14 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
> index f6c6b34..b7ff9a3 100644
> --- a/arch/alpha/Kconfig
> +++ b/arch/alpha/Kconfig
> @@ -22,6 +22,7 @@ config ALPHA
>  	select GENERIC_SMP_IDLE_THREAD
>  	select GENERIC_STRNCPY_FROM_USER
>  	select GENERIC_STRNLEN_USER
> +	select HAVE_ARCH_AUDITSYSCALL
>  	select HAVE_MOD_ARCH_SPECIFIC
>  	select MODULES_USE_ELF_RELA
>  	select ODD_RT_SIGACTION
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index e254198..ca79340 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -24,6 +24,7 @@ config ARM
>  	select GENERIC_STRNCPY_FROM_USER
>  	select GENERIC_STRNLEN_USER
>  	select HARDIRQS_SW_RESEND
> +	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
>  	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
>  	select HAVE_ARCH_KGDB
>  	select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
> index 0c8e553..5409bf4 100644
> --- a/arch/ia64/Kconfig
> +++ b/arch/ia64/Kconfig
> @@ -44,6 +44,7 @@ config IA64
>  	select HAVE_MOD_ARCH_SPECIFIC
>  	select MODULES_USE_ELF_RELA
>  	select ARCH_USE_CMPXCHG_LOCKREF
> +	select HAVE_ARCH_AUDITSYSCALL
>  	default y
>  	help
>  	  The Itanium Processor Family is Intel's 64-bit successor to
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index bb2a8ec..1faefed 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -28,6 +28,7 @@ config PARISC
>  	select CLONE_BACKWARDS
>  	select TTY # Needed for pdc_cons.c
>  	select HAVE_DEBUG_STACKOVERFLOW
> +	select HAVE_ARCH_AUDITSYSCALL
>  
>  	help
>  	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index 957bf34..7b3b8fe 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -141,6 +141,7 @@ config PPC
>  	select HAVE_DEBUG_STACKOVERFLOW
>  	select HAVE_IRQ_EXIT_ON_IRQ_STACK
>  	select ARCH_USE_CMPXCHG_LOCKREF if PPC64
> +	select HAVE_ARCH_AUDITSYSCALL
>  
>  config GENERIC_CSUM
>  	def_bool CPU_LITTLE_ENDIAN
> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> index 65a0775..1b58568 100644
> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -103,6 +103,7 @@ config S390
>  	select GENERIC_SMP_IDLE_THREAD
>  	select GENERIC_TIME_VSYSCALL
>  	select HAVE_ALIGNED_STRUCT_PAGE if SLUB
> +	select HAVE_ARCH_AUDITSYSCALL
>  	select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
>  	select HAVE_ARCH_SECCOMP_FILTER
>  	select HAVE_ARCH_TRACEHOOK
> diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
> index 6357710..4addd87 100644
> --- a/arch/sh/Kconfig
> +++ b/arch/sh/Kconfig
> @@ -42,6 +42,7 @@ config SUPERH
>  	select MODULES_USE_ELF_RELA
>  	select OLD_SIGSUSPEND
>  	select OLD_SIGACTION
> +	select HAVE_ARCH_AUDITSYSCALL
>  	help
>  	  The SuperH is a RISC processor targeted for use in embedded systems
>  	  and consumer electronics; it was also used in the Sega Dreamcast
> diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
> index c51efdc..9c74d6b 100644
> --- a/arch/sparc/Kconfig
> +++ b/arch/sparc/Kconfig
> @@ -77,6 +77,7 @@ config SPARC64
>  	select ARCH_HAVE_NMI_SAFE_CMPXCHG
>  	select HAVE_C_RECORDMCOUNT
>  	select NO_BOOTMEM
> +	select HAVE_ARCH_AUDITSYSCALL
>  
>  config ARCH_DEFCONFIG
>  	string
> diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
> index 21ca44c..6915d28 100644
> --- a/arch/um/Kconfig.common
> +++ b/arch/um/Kconfig.common
> @@ -1,6 +1,7 @@
>  config UML
>  	bool
>  	default y
> +	select HAVE_ARCH_AUDITSYSCALL
>  	select HAVE_UID16
>  	select GENERIC_IRQ_SHOW
>  	select GENERIC_CPU_DEVICES
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 0af5250..2938365 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -127,6 +127,7 @@ config X86
>  	select HAVE_DEBUG_STACKOVERFLOW
>  	select HAVE_IRQ_EXIT_ON_IRQ_STACK if X86_64
>  	select HAVE_CC_STACKPROTECTOR
> +	select HAVE_ARCH_AUDITSYSCALL
>  
>  config INSTRUCTION_DECODER
>  	def_bool y
> diff --git a/init/Kconfig b/init/Kconfig
> index 009a797..d4ec53d 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -282,9 +282,12 @@ config AUDIT
>  	  logging of avc messages output).  Does not do system-call
>  	  auditing without CONFIG_AUDITSYSCALL.
>  
> +config HAVE_ARCH_AUDITSYSCALL
> +	bool
> +
>  config AUDITSYSCALL
>  	bool "Enable system-call auditing support"
> -	depends on AUDIT && (X86 || PARISC || PPC || S390 || IA64 || UML || SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT) || ALPHA)
> +	depends on AUDIT && HAVE_ARCH_AUDITSYSCALL
>  	default y if SECURITY_SELINUX
>  	help
>  	  Enable low-overhead system-call auditing infrastructure that
> -- 
> 1.7.9.5
> 

- RGB

--
Richard Guy Briggs <rbriggs@redhat.com>
Senior Software Engineer, Kernel Security, AMER ENG Base Operating Systems, Red Hat
Remote, Ottawa, Canada
Voice: +1.647.777.2635, Internal: (81) 32635, Alt: +1.613.693.0684x3545

From - Thu Nov 08 21:10:12 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: 3.12.8 is doing nasty things
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Am Samstag, 15. Februar 2014, 08:47:06 schrieb Rolf Eike Beer:
> Am Donnerstag, 13. Februar 2014, 07:37:55 schrieb Rolf Eike Beer:
> > Am Dienstag, 11. Februar 2014, 16:30:08 schrieb Rolf Eike Beer:
> > > > Next week I'll try 3.13, but since it has the same changes I expect
> > > > the
> > > > same results.
> > > 
> > > I'm now on 3.13.2 and things are similar. While I did an initial test
> > > with
> > > 100 invocations of ssh which went flawlessly I now see random process
> > > errors again. Examples can be found here:
> > > http://my.cdash.org/index.php?project=Qsmtp&date=2014-02-11
> > > 
> > > Normally the reports should have arrived much earlier, but for an
> > > unknown
> > > reason the resolv.conf (generated by DHCP) was empty, I assume that the
> > > DHCP process has failed during while renewing the IP address. The
> > > segfaults during the build have not happened with the older kernel.
> > 
> > I can now confirm that the cache coherency fixes are _not_ the reason for
> > those failures I see. I have rebuild 3.13.2 without them and still see
> > random segfaults in my dashboards. I'll try the mmap() patch next.
> 
> After 2,5 days with 3.13.2 and 0576da2c08e3d332f1b0653030d28ab804585ab6 I
> have not yet seen a single random segfault.

A short update on this: I am still running on that kernel and have not seen a 
single random process crash since then. I'm willing to help in debugging this 
if anyone tells me how, but I will now just revert that patch from every new 
kernel to get a stable machine.

Greetings,

Eike
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From - Thu Nov 08 21:10:12 2018
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From: Matt Turner <mattst88@gmail.com>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.redhat.security.audit,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user
Subject: Re: [PATCH v2 1/1] audit: Add CONFIG_HAVE_ARCH_AUDITSYSCALL
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On Tue, Feb 25, 2014 at 1:16 AM, AKASHI Takahiro
<takahiro.akashi@linaro.org> wrote:
> Currently AUDITSYSCALL has a long list of architecture depencency:
>        depends on AUDIT && (X86 || PARISC || PPC || S390 || IA64 || UML ||
>                 SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT) || ALPHA)
> The purpose of this patch is to replace it with HAVE_ARCH_AUDITSYSCALL
> for simplicity.
>
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
> ---
>  arch/alpha/Kconfig     |    1 +
>  arch/arm/Kconfig       |    1 +
>  arch/ia64/Kconfig      |    1 +
>  arch/parisc/Kconfig    |    1 +
>  arch/powerpc/Kconfig   |    1 +
>  arch/s390/Kconfig      |    1 +
>  arch/sh/Kconfig        |    1 +
>  arch/sparc/Kconfig     |    1 +
>  arch/um/Kconfig.common |    1 +
>  arch/x86/Kconfig       |    1 +
>  init/Kconfig           |    5 ++++-
>  11 files changed, 14 insertions(+), 1 deletion(-)
>
> diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
> index f6c6b34..b7ff9a3 100644
> --- a/arch/alpha/Kconfig
> +++ b/arch/alpha/Kconfig
> @@ -22,6 +22,7 @@ config ALPHA
>         select GENERIC_SMP_IDLE_THREAD
>         select GENERIC_STRNCPY_FROM_USER
>         select GENERIC_STRNLEN_USER
> +       select HAVE_ARCH_AUDITSYSCALL
>         select HAVE_MOD_ARCH_SPECIFIC
>         select MODULES_USE_ELF_RELA
>         select ODD_RT_SIGACTION

Thanks.

Acked-by: Matt Turner <mattst88@gmail.com>
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From - Thu Nov 08 21:10:12 2018
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Subject: Re: [PATCH v2 1/1] audit: Add CONFIG_HAVE_ARCH_AUDITSYSCALL
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On Tue, 2014-02-25 at 18:16 +0900, AKASHI Takahiro wrote:
> Currently AUDITSYSCALL has a long list of architecture depencency:
>        depends on AUDIT && (X86 || PARISC || PPC || S390 || IA64 || UML ||
> 		SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT) || ALPHA)
> The purpose of this patch is to replace it with HAVE_ARCH_AUDITSYSCALL
> for simplicity.
> 
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
>
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index 957bf34..7b3b8fe 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -141,6 +141,7 @@ config PPC
>  	select HAVE_DEBUG_STACKOVERFLOW
>  	select HAVE_IRQ_EXIT_ON_IRQ_STACK
>  	select ARCH_USE_CMPXCHG_LOCKREF if PPC64
> +	select HAVE_ARCH_AUDITSYSCALL
>  
>  config GENERIC_CSUM
>  	def_bool CPU_LITTLE_ENDIAN

Looks good for powerpc.

Acked-by: Michael Ellerman <mpe@ellerman.id.au>

cheers


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From: "Helge Deller" <deller@gmx.de>
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> > > > I'm now on 3.13.2 and things are similar. While I did an initial test
> > > > with
> > > > 100 invocations of ssh which went flawlessly I now see random process
> > > > errors again. Examples can be found here:
> > > > http://my.cdash.org/index.php?project=Qsmtp&date=2014-02-11
> > > > 
> > > > Normally the reports should have arrived much earlier, but for an
> > > > unknown
> > > > reason the resolv.conf (generated by DHCP) was empty, I assume that the
> > > > DHCP process has failed during while renewing the IP address. The
> > > > segfaults during the build have not happened with the older kernel.
> > > 
> > > I can now confirm that the cache coherency fixes are _not_ the reason for
> > > those failures I see. I have rebuild 3.13.2 without them and still see
> > > random segfaults in my dashboards. I'll try the mmap() patch next.
> > 
> > After 2,5 days with 3.13.2 and 0576da2c08e3d332f1b0653030d28ab804585ab6 I
> > have not yet seen a single random segfault.
> 
> A short update on this: I am still running on that kernel and have not seen a 
> single random process crash since then. I'm willing to help in debugging this 
> if anyone tells me how, but I will now just revert that patch from every new 
> kernel to get a stable machine.

On a debian-kernel linux-image-3.13-1-parisc64-smp (3.13.4-1) and the latest libc6
which Dave uploaded, I'm now seeing similiar issues which are most likely related:

lsXX:~# dpkg-reconfigure locales
Generating locales (this might take a while)...
  de_DE.ISO-8859-1...cannot map archive header: Invalid argument
 done
  de_DE.UTF-8...cannot map archive header: Invalid argument
 done
  de_DE.ISO-8859-15@euro...cannot map archive header: Invalid argument
 done
  en_US.ISO-8859-1...cannot map archive header: Invalid argument
 done
  en_US.ISO-8859-15...cannot map archive header: Invalid argument
 done
  en_US.UTF-8...cannot map archive header: Invalid argument
 done
Generation complete.

Helge
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	Rolf Eike Beer <eike-kernel@sf-tec.de>
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On 2/26/2014 9:26 AM, Helge Deller wrote:
>>>>> I'm now on 3.13.2 and things are similar. While I did an initial test
>>>>> with
>>>>> 100 invocations of ssh which went flawlessly I now see random process
>>>>> errors again. Examples can be found here:
>>>>> http://my.cdash.org/index.php?project=Qsmtp&date=2014-02-11
>>>>>
>>>>> Normally the reports should have arrived much earlier, but for an
>>>>> unknown
>>>>> reason the resolv.conf (generated by DHCP) was empty, I assume that the
>>>>> DHCP process has failed during while renewing the IP address. The
>>>>> segfaults during the build have not happened with the older kernel.
>>>> I can now confirm that the cache coherency fixes are _not_ the reason for
>>>> those failures I see. I have rebuild 3.13.2 without them and still see
>>>> random segfaults in my dashboards. I'll try the mmap() patch next.
>>> After 2,5 days with 3.13.2 and 0576da2c08e3d332f1b0653030d28ab804585ab6 I
>>> have not yet seen a single random segfault.
>> A short update on this: I am still running on that kernel and have not seen a
>> single random process crash since then. I'm willing to help in debugging this
>> if anyone tells me how, but I will now just revert that patch from every new
>> kernel to get a stable machine.
> On a debian-kernel linux-image-3.13-1-parisc64-smp (3.13.4-1) and the latest libc6
> which Dave uploaded, I'm now seeing similiar issues which are most likely related:
>
> lsXX:~# dpkg-reconfigure locales
> Generating locales (this might take a while)...
>    de_DE.ISO-8859-1...cannot map archive header: Invalid argument
In my opinion, this is a glibc bug.  The issue has been discussed before.

I'm not seeing random segvs with 3.13.2 and later in general use.  I 
haven't reverted anything.

The only random program failures that I see are thread related. There 
are a bunch of failures
in the glibc testsuite, but these are not new.  There was a message on 
the console this morning about
reaching maximum lock depth 1024.  This was probably from glibc 
testsuite.  There is a known
issue with locking in glib2.0 which sometimes causes dot to segv.

If you are testing programs that use threads intensively, then I could 
see that you might see problems.

A TLS bug affecting thread local variables was recently fixed in gcc-4.8.

Dave

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Am Mittwoch 26 Februar 2014, 11:00:01 schrieben Sie:
> On 2/26/2014 9:26 AM, Helge Deller wrote:

>>>> After 2,5 days with 3.13.2 and 0576da2c08e3d332f1b0653030d28ab804585ab6
>>>> I have not yet seen a single random segfault.
> >> 
> >> A short update on this: I am still running on that kernel and have not
> >> seen a single random process crash since then. I'm willing to help in
> >> debugging this if anyone tells me how, but I will now just revert that
> >> patch from every new kernel to get a stable machine.
> > 
> > On a debian-kernel linux-image-3.13-1-parisc64-smp (3.13.4-1) and the
> > latest libc6 which Dave uploaded, I'm now seeing similiar issues which
> > are most likely related:
> > 
> > lsXX:~# dpkg-reconfigure locales
> > Generating locales (this might take a while)...
> > 
> >    de_DE.ISO-8859-1...cannot map archive header: Invalid argument
> 
> In my opinion, this is a glibc bug.  The issue has been discussed before.
> 
> I'm not seeing random segvs with 3.13.2 and later in general use.  I
> haven't reverted anything.
> 
> The only random program failures that I see are thread related. There
> are a bunch of failures
> in the glibc testsuite, but these are not new.  There was a message on
> the console this morning about
> reaching maximum lock depth 1024.  This was probably from glibc
> testsuite.  There is a known
> issue with locking in glib2.0 which sometimes causes dot to segv.
> 
> If you are testing programs that use threads intensively, then I could
> see that you might see problems.
> 
> A TLS bug affecting thread local variables was recently fixed in gcc-4.8.

I don't think this is the problem that I'm seeing. What crashed was things 
like make or ld which don't care for threads.

Eike
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On Wed, 26 Feb 2014 15:26:15 +0100
"Helge Deller" <deller@gmx.de> wrote:

> On a debian-kernel linux-image-3.13-1-parisc64-smp (3.13.4-1) and the
> latest libc6 which Dave uploaded, I'm now seeing similiar issues
> which are most likely related:
> 
> lsXX:~# dpkg-reconfigure locales
> Generating locales (this might take a while)...
>   de_DE.ISO-8859-1...cannot map archive header: Invalid argument
>  done

That isn't the same problem with the random segmentation faults that
this thread documents.


     jer
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From - Thu Nov 08 21:10:13 2018
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
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Subject: Re: Re: 3.12.8 is doing nasty things
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On Wed, Feb 26, 2014 at 03:26:15PM +0100, Helge Deller wrote:
> On a debian-kernel linux-image-3.13-1-parisc64-smp (3.13.4-1) and the latest libc6
> which Dave uploaded, I'm now seeing similiar issues which are most likely related:
> 
> lsXX:~# dpkg-reconfigure locales
> Generating locales (this might take a while)...
>   de_DE.ISO-8859-1...cannot map archive header: Invalid argument

This is caused by this: http://marc.info/?l=linux-parisc&m=138748066325722&w=2

A.
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From - Thu Nov 08 21:10:13 2018
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From: John David Anglin <dave.anglin@bell.net>
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Cc: Helge Deller <deller@gmx.de>,
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On 2/26/2014 2:20 PM, Jeroen Roovers wrote:
> On Wed, 26 Feb 2014 15:26:15 +0100
> "Helge Deller" <deller@gmx.de> wrote:
>
>> On a debian-kernel linux-image-3.13-1-parisc64-smp (3.13.4-1) and the
>> latest libc6 which Dave uploaded, I'm now seeing similiar issues
>> which are most likely related:
>>
>> lsXX:~# dpkg-reconfigure locales
>> Generating locales (this might take a while)...
>>    de_DE.ISO-8859-1...cannot map archive header: Invalid argument
>>   done
> That isn't the same problem with the random segmentation faults that
> this thread documents.
Well the matter is confusing.  I may be wrong but Eike seems to be 
complaining that
0576da2c08e3d332f1b0653030d28ab804585ab6 is related to the random 
segmentation
fault.   This is the change to the mmap handling that causes the invalid 
argument error above.

Can this be clarified?

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:10:13 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Remove unused CONFIG_PARISC_TMPALIAS code
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The attached change removes the unused and experimental  
CONFIG_PARISC_TMPALIAS code.
It doesn't work and I don't believe it will ever be used.

Signed-off-by: John David Anglin <dave.anglin@bell.net>

---


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diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index 637fe03..60d5d17 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -32,17 +32,6 @@ void copy_page_asm(void *to, void *from);
 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 			struct page *pg);
 
-/* #define CONFIG_PARISC_TMPALIAS */
-
-#ifdef CONFIG_PARISC_TMPALIAS
-void clear_user_highpage(struct page *page, unsigned long vaddr);
-#define clear_user_highpage clear_user_highpage
-struct vm_area_struct;
-void copy_user_highpage(struct page *to, struct page *from,
-	unsigned long vaddr, struct vm_area_struct *vma);
-#define __HAVE_ARCH_COPY_USER_HIGHPAGE
-#endif
-
 /*
  * These are used to make use of C type-checking..
  */
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index ac87a40..a6ffc77 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -581,67 +581,3 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 		__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
 	}
 }
-
-#ifdef CONFIG_PARISC_TMPALIAS
-
-void clear_user_highpage(struct page *page, unsigned long vaddr)
-{
-	void *vto;
-	unsigned long flags;
-
-	/* Clear using TMPALIAS region.  The page doesn't need to
-	   be flushed but the kernel mapping needs to be purged.  */
-
-	vto = kmap_atomic(page);
-
-	/* The PA-RISC 2.0 Architecture book states on page F-6:
-	   "Before a write-capable translation is enabled, *all*
-	   non-equivalently-aliased translations must be removed
-	   from the page table and purged from the TLB.  (Note
-	   that the caches are not required to be flushed at this
-	   time.)  Before any non-equivalent aliased translation
-	   is re-enabled, the virtual address range for the writeable
-	   page (the entire page) must be flushed from the cache,
-	   and the write-capable translation removed from the page
-	   table and purged from the TLB."  */
-
-	purge_kernel_dcache_page_asm((unsigned long)vto);
-	purge_tlb_start(flags);
-	pdtlb_kernel(vto);
-	purge_tlb_end(flags);
-	preempt_disable();
-	clear_user_page_asm(vto, vaddr);
-	preempt_enable();
-
-	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
-}
-
-void copy_user_highpage(struct page *to, struct page *from,
-	unsigned long vaddr, struct vm_area_struct *vma)
-{
-	void *vfrom, *vto;
-	unsigned long flags;
-
-	/* Copy using TMPALIAS region.  This has the advantage
-	   that the `from' page doesn't need to be flushed.  However,
-	   the `to' page must be flushed in copy_user_page_asm since
-	   it can be used to bring in executable code.  */
-
-	vfrom = kmap_atomic(from);
-	vto = kmap_atomic(to);
-
-	purge_kernel_dcache_page_asm((unsigned long)vto);
-	purge_tlb_start(flags);
-	pdtlb_kernel(vto);
-	pdtlb_kernel(vfrom);
-	purge_tlb_end(flags);
-	preempt_disable();
-	copy_user_page_asm(vto, vfrom, vaddr);
-	flush_dcache_page_asm(__pa(vto), vaddr);
-	preempt_enable();
-
-	pagefault_enable();		/* kunmap_atomic(addr, KM_USER1); */
-	pagefault_enable();		/* kunmap_atomic(addr, KM_USER0); */
-}

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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Cc: Aaro Koskinen <aaro.koskinen@iki.fi>, linux-parisc@vger.kernel.org
To: Mike Frysinger <vapier@gentoo.org>,
	John David Anglin <dave.anglin@bell.net>
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi Mike,

On 12/19/2013 10:19 PM, Mike Frysinger wrote:
> On Thursday 19 December 2013 14:44:40 John David Anglin wrote:
>> On 12/19/2013 2:17 PM, Aaro Koskinen wrote:
>>> This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
>>> mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
>>>
>>> $ localedef -c -i en_US -f UTF-8 en_US.UTF-8
>>> cannot map archive header: Invalid argument
>>>
>>> strace looks like this:
>>>
>>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42f34000
>>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3,
>>> 0) = -1 EINVAL (Invalid argument)
>>>
>>> With the patch reverted, it works:
>>>
>>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42d74000
>>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3,
>>> 0) = 0x43000000
>>>
>>> BTW, note that for GLIBC 2.18 some changes were done regarding this:
>>> https://sourceware.org/bugzilla/show_bug.cgi?id=10283
>>
>> Are you sure the glibc changes are correct?  PARISC addresses are not
>> strictly aligned to SHMLBA.
>> There's also a page offset and "random" offset derived from the kernel
>> address of the mapping struct.
> 
> the glibc changes were to use SHMLBA as the min alignment where as before it 
> was using PAGE_SIZE.  the kernel shouldn't reject us because we manually 
> increased our alignment ... the mappings should still be overlapping, so it 
> shouldn't be an "out of mapping space" issue.
> 
> the first one gets a really large map (not fixed), and then the second does a 
> small mapping inside of that first one.

This doesn't work for parisc.
We currently face this issue again now with eglibc on debian since we updated it.

Regarding this commit:
https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/generic/libc-mmap.h;h=0ddd20d42ab44282180c6d6f7c13f2875b25a614;hb=17db6e8d6b12f55e312fcab46faf5d332c806fb6

a trivial workaround would be to change libc-mmap.h like this:
#ifdef __hppa__
#define MAP_FIXED_ALIGNMENT 4096
#else
#define MAP_FIXED_ALIGNMENT SHMLBA
#endif

That works because then the new aligned address is then the same as the original
(the mmap call returns 4k aligned addresses, so it stays unchanged), but I'm not sure
if such a patch would be acceptable.
Do you have another idea/proposal?

Helge
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Hello,

just to let everyone know...

Our original website at http://www.parisc-linux.org was hosted on a A500 machine at HP in Colorado.
If you are interested, you can see original pictures of this machine here: https://parisc.wiki.kernel.org/index.php/PA-RISC_Linux_Project_History
But due to network problems it has been down now for 3 weeks and we are in progress to move the server physically over to OSUOSL.org and use it there as buildd server. 

That said, the original website at www.parisc-linux.org will most likely now show up again.
Instead our new web presence is now our wiki at http://wiki.parisc-linux.org/ which is much easier to maintain.

As I'm writing this mail, parisc-linux.org shows the contents of our french mirror, but it will redirect to the wiki page soon.
If you had a @parisc-linux.org email address in the past, Thibaut will try to get the forwarding working again.

Helge
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From: Dave Land <xmechanic@landcomp.net>
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On 3/4/14 1:03 PM, Helge Deller wrote:
> Hello,
>
> just to let everyone know...
>
> Our original website at http://www.parisc-linux.org was hosted on a A500 machine at HP in Colorado.
> If you are interested, you can see original pictures of this machine here: https://parisc.wiki.kernel.org/index.php/PA-RISC_Linux_Project_History
> But due to network problems it has been down now for 3 weeks and we are in progress to move the server physically over to OSUOSL.org and use it there as buildd server.
>
> That said, the original website at www.parisc-linux.org will most likely now show up again.
> Instead our new web presence is now our wiki at http://wiki.parisc-linux.org/ which is much easier to maintain.
>
> As I'm writing this mail, parisc-linux.org shows the contents of our french mirror, but it will redirect to the wiki page soon.
> If you had a @parisc-linux.org email address in the past, Thibaut will try to get the forwarding working again.
>
> Helge
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
>

Heh heh, pretty cool. Theirs even still has the faceplate on it. :-)

Dave L.

-- 
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ICQ: 676030523


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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: parisc-linux.org website migrated to http://wiki.parisc-linux.org/
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org
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On 4-Mar-14, at 5:31 PM, Dave Land wrote:

> On 3/4/14 1:03 PM, Helge Deller wrote:
>> Hello,
>>
>> just to let everyone know...
>>
>> Our original website at http://www.parisc-linux.org was hosted on a  
>> A500 machine at HP in Colorado.
>> If you are interested, you can see original pictures of this  
>> machine here: https://parisc.wiki.kernel.org/index.php/PA-RISC_Linux_Project_History
>> But due to network problems it has been down now for 3 weeks and we  
>> are in progress to move the server physically over to OSUOSL.org  
>> and use it there as buildd server.
>>
>> That said, the original website at www.parisc-linux.org will most  
>> likely now show up again.
>> Instead our new web presence is now our wiki at http://wiki.parisc-linux.org/ 
>>  which is much easier to maintain.
>>
>> As I'm writing this mail, parisc-linux.org shows the contents of  
>> our french mirror, but it will redirect to the wiki page soon.
>> If you had a @parisc-linux.org email address in the past, Thibaut  
>> will try to get the forwarding working again.
>>
>> Helge
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux- 
>> parisc" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
>>
>
> Heh heh, pretty cool. Theirs even still has the faceplate on it. :-)


I believe that I also have one of those faceplates but never installed  
it...

I don't know a lot about the early Puffin history (I was holed up in  
my office at NRC about a
mile from the Puffins).  I found this article which some might find  
interesting:
http://online.wsj.com/news/articles/SB921650089712293845

I also note that the history indicates that Helge died on June 25,  
1999 ;-)

Dave
--
John David Anglin	dave.anglin@bell.net



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From: Helge Deller <deller@gmx.de>
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Subject: Fwd: [PATCH RESEND 10/14] hppa: locks: remove redundant arch_*_relax
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Forwarding to parisc patchwork...


-------- Original Message --------
Subject: 	[PATCH RESEND 10/14] hppa: locks: remove redundant 
arch_*_relax operations
Date: 	Fri, 21 Feb 2014 17:34:57 +0000
From: 	Will Deacon <will.deacon@arm.com>
To: 	akpm@linux-foundation.org
CC: 	linux-arch@vger.kernel.org, Will Deacon <will.deacon@arm.com>, 
Helge Deller <deller@gmx.de>



Now that the arch_{spin,read,write}_relax macros default to cpu_relax(),
remove the redundant definitions for parisc.

Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
  arch/parisc/include/asm/spinlock.h | 4 ----
  1 file changed, 4 deletions(-)

diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index 3516e0b27044..64f2992e439f 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -191,8 +191,4 @@ static __inline__ int arch_write_can_lock(arch_rwlock_t *rw)
  #define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
  #define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
  
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()

From - Thu Nov 08 21:10:13 2018
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Xref: news.gmane.org gmane.linux.ports.mips.general:40560 gmane.linux.redhat.security.audit:5996 gmane.linux.kernel:1661227 gmane.linux.ports.arm.kernel:307101 gmane.linux.ports.ia64:23656 gmane.linux.ports.openrisc:426 gmane.linux.ports.parisc:5721 gmane.linux.ports.ppc64.devel:99951 gmane.linux.ports.sh.devel:33100 gmane.linux.ports.sparc:18745 gmane.linux.uml.devel:14378 gmane.linux.kernel.cross-arch:21955
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/40560>

Each arch that supports audit requires syscall_get_arch() to able to log
and identify architecture-dependent syscall numbers.  The information is used
in at least two different subsystems, so standardize it in the same call across
all arches.

Use the standardized syscall_get_arch() locally to add the arch to the
AUDIT_SECCOMP record to identify which syscall was issued.

Since all the callers of syscall_get_arch() presently pass "current" and none
of the arch-specific syscall_get_arch() implementations use the regs parameter,
call syscall_get_arch() locally where it is needed and drop passing around
arch, current and regs in __audit_syscall_entry() and audit_syscall_entry().

Compiles and runs on i686, x86_64, ppc, ppc64, s390, s390x, manually tested in
an x86_64 VM.  aarch64 will be added soon.

Richard Guy Briggs (6):
  syscall: define syscall_get_arch() for each audit-supported arch
  audit: add arch field to seccomp event log
  audit: __audit_syscall_entry: ignore arch arg and call
    syscall_get_arch() directly
  audit: drop arch from audit_syscall_entry() interface
  audit: drop args from syscall_get_arch() interface
  audit: drop arch from __audit_syscall_entry() interface

 arch/arm/include/asm/syscall.h        |    5 ++---
 arch/arm/kernel/ptrace.c              |    2 +-
 arch/ia64/include/asm/syscall.h       |    6 ++++++
 arch/ia64/kernel/ptrace.c             |    2 +-
 arch/microblaze/include/asm/syscall.h |    5 +++++
 arch/microblaze/kernel/ptrace.c       |    2 +-
 arch/mips/include/asm/syscall.h       |    6 +++---
 arch/mips/kernel/ptrace.c             |    3 +--
 arch/openrisc/include/asm/syscall.h   |    5 +++++
 arch/openrisc/kernel/ptrace.c         |    2 +-
 arch/parisc/include/asm/syscall.h     |   11 +++++++++++
 arch/parisc/kernel/ptrace.c           |    5 ++---
 arch/powerpc/include/asm/syscall.h    |   12 ++++++++++++
 arch/powerpc/kernel/ptrace.c          |    6 ++----
 arch/s390/include/asm/syscall.h       |    7 +++----
 arch/s390/kernel/ptrace.c             |    4 +---
 arch/sh/include/asm/syscall.h         |   16 ++++++++++++++++
 arch/sh/kernel/ptrace_32.c            |   13 +------------
 arch/sh/kernel/ptrace_64.c            |   16 +---------------
 arch/sparc/include/asm/syscall.h      |    7 +++++++
 arch/sparc/kernel/ptrace_64.c         |    5 +----
 arch/um/kernel/ptrace.c               |    3 +--
 arch/x86/ia32/ia32entry.S             |   12 ++++++------
 arch/x86/include/asm/syscall.h        |   10 ++++------
 arch/x86/kernel/entry_32.S            |   11 +++++------
 arch/x86/kernel/entry_64.S            |   11 +++++------
 arch/x86/kernel/ptrace.c              |    6 ++----
 arch/xtensa/kernel/ptrace.c           |    2 +-
 include/asm-generic/syscall.h         |    6 ++----
 include/linux/audit.h                 |    9 ++++-----
 include/uapi/linux/audit.h            |    1 +
 kernel/auditsc.c                      |    6 ++++--
 kernel/seccomp.c                      |    4 ++--
 33 files changed, 120 insertions(+), 101 deletions(-)




From - Thu Nov 08 21:10:13 2018
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From: Richard Guy Briggs <rgb@redhat.com>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.redhat.security.audit,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.uml.devel,gmane.linux.ports.parisc,gmane.linux.ports.openrisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 2/6][RFC] audit: add arch field to seccomp event log
Date: Wed,  5 Mar 2014 16:27:03 -0500
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Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.ports.arm.kernel:307102 gmane.linux.redhat.security.audit:5997 gmane.linux.kernel:1661228 gmane.linux.kernel.cross-arch:21956 gmane.linux.ports.mips.general:40561 gmane.linux.ports.ia64:23657 gmane.linux.uml.devel:14379 gmane.linux.ports.parisc:5722 gmane.linux.ports.openrisc:427 gmane.linux.ports.sh.devel:33101 gmane.linux.ports.sparc:18746 gmane.linux.ports.ppc64.devel:99952
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/307102>

The AUDIT_SECCOMP record looks something like this:

type=SECCOMP msg=audit(1373478171.953:32775): auid=4325 uid=4325 gid=4325 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0 pid=12381 comm="test" sig=31 syscall=231 compat=0 ip=0x39ea8bca89 code=0x0

In order to determine what syscall 231 maps to, we need to have the arch= field right before it.

To see the event, compile this test.c program:

=====
int main(void)
{
        return seccomp_load(seccomp_init(SCMP_ACT_KILL));
}
=====

gcc -g test.c -o test -lseccomp

After running the program, find the record by:  ausearch --start recent -m SECCOMP -i

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>

---
 kernel/auditsc.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 3bc12d2..7317f46 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -67,6 +67,7 @@
 #include <linux/binfmts.h>
 #include <linux/highmem.h>
 #include <linux/syscalls.h>
+#include <asm/syscall.h>
 #include <linux/capability.h>
 #include <linux/fs_struct.h>
 #include <linux/compat.h>
@@ -2415,6 +2416,8 @@ void __audit_seccomp(unsigned long syscall, long signr, int code)
 		return;
 	audit_log_task(ab);
 	audit_log_format(ab, " sig=%ld", signr);
+	audit_log_format(ab, " arch=%x",
+			 syscall_get_arch(current, task_pt_regs(current)));
 	audit_log_format(ab, " syscall=%ld", syscall);
 	audit_log_format(ab, " compat=%d", is_compat_task());
 	audit_log_format(ab, " ip=0x%lx", KSTK_EIP(current));
-- 
1.7.1

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From: Richard Guy Briggs <rgb@redhat.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.redhat.security.audit,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.openrisc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH 1/6][RFC] syscall: define syscall_get_arch() for each audit-supported arch
Date: Wed,  5 Mar 2014 16:27:02 -0500
Lines: 234
Approved: news@gmane.org
Message-ID: <cb88576237b1bc4fc7981200c2c23ae05790db0d.1393974970.git.rgb@redhat.com>
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Cc: Richard Guy Briggs <rgb@redhat.com>, eparis@redhat.com,
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To: linux-audit@redhat.com, linux-kernel@vger.kernel.org
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Xref: news.gmane.org gmane.linux.ports.mips.general:40562 gmane.linux.redhat.security.audit:5998 gmane.linux.kernel:1661229 gmane.linux.ports.arm.kernel:307103 gmane.linux.ports.ia64:23658 gmane.linux.ports.openrisc:428 gmane.linux.ports.parisc:5723 gmane.linux.ports.ppc64.devel:99953 gmane.linux.ports.sh.devel:33102 gmane.linux.ports.sparc:18747 gmane.linux.uml.devel:14380 gmane.linux.kernel.cross-arch:21957
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/40562>

Each arch that supports audit requires syscall_get_arch() to able to log and
identify architecture-dependent syscall numbers.  The information is used in at
least two different subsystems, so standardize it in the same call across all
arches.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>

---
 arch/ia64/include/asm/syscall.h       |    7 +++++++
 arch/microblaze/include/asm/syscall.h |    6 ++++++
 arch/mips/include/asm/syscall.h       |    8 +++++++-
 arch/openrisc/include/asm/syscall.h   |    6 ++++++
 arch/parisc/include/asm/syscall.h     |   12 ++++++++++++
 arch/powerpc/include/asm/syscall.h    |   13 +++++++++++++
 arch/sh/include/asm/syscall.h         |   17 +++++++++++++++++
 arch/sparc/include/asm/syscall.h      |    8 ++++++++
 include/uapi/linux/audit.h            |    1 +
 9 files changed, 77 insertions(+), 1 deletions(-)

diff --git a/arch/ia64/include/asm/syscall.h b/arch/ia64/include/asm/syscall.h
index a7ff1c6..0fd2a7a 100644
--- a/arch/ia64/include/asm/syscall.h
+++ b/arch/ia64/include/asm/syscall.h
@@ -15,6 +15,7 @@
 
 #include <linux/sched.h>
 #include <linux/err.h>
+#include <linux/audit.h>
 
 static inline long syscall_get_nr(struct task_struct *task,
 				  struct pt_regs *regs)
@@ -79,4 +80,10 @@ static inline void syscall_set_arguments(struct task_struct *task,
 
 	ia64_syscall_get_set_arguments(task, regs, i, n, args, 1);
 }
+
+static inline int syscall_get_arch(struct task_struct *tsk,
+				   struct pt_regs *regs)
+{
+	return AUDIT_ARCH_IA64;
+}
 #endif	/* _ASM_SYSCALL_H */
diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h
index 9bc4317..06854da 100644
--- a/arch/microblaze/include/asm/syscall.h
+++ b/arch/microblaze/include/asm/syscall.h
@@ -3,6 +3,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/audit.h>
 #include <asm/ptrace.h>
 
 /* The system call number is given by the user in R12 */
@@ -99,4 +100,9 @@ static inline void syscall_set_arguments(struct task_struct *task,
 asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
 asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
 
+static inline int syscall_get_arch(struct tast_struct *tsk,
+				   struct pt_regs *regs)
+{
+	return AUDIT_ARCH_MICROBLAZE;
+}
 #endif /* __ASM_MICROBLAZE_SYSCALL_H */
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index 81c8913..41ecde4 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -103,7 +103,7 @@ extern const unsigned long sysn32_call_table[];
 
 static inline int __syscall_get_arch(void)
 {
-	int arch = EM_MIPS;
+	int arch = AUDIT_ARCH_MIPS;
 #ifdef CONFIG_64BIT
 	arch |=  __AUDIT_ARCH_64BIT;
 #endif
@@ -113,4 +113,10 @@ static inline int __syscall_get_arch(void)
 	return arch;
 }
 
+static inline int syscall_get_arch(struct task_struct *task,
+				   struct pt_regs *regs)
+{
+	return __syscall_get_arch();
+}
+
 #endif	/* __ASM_MIPS_SYSCALL_H */
diff --git a/arch/openrisc/include/asm/syscall.h b/arch/openrisc/include/asm/syscall.h
index b752bb6..534b9c3 100644
--- a/arch/openrisc/include/asm/syscall.h
+++ b/arch/openrisc/include/asm/syscall.h
@@ -21,6 +21,7 @@
 
 #include <linux/err.h>
 #include <linux/sched.h>
+#include <linux/audit.h>
 
 static inline int
 syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
@@ -71,4 +72,9 @@ syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
 	memcpy(&regs->gpr[3 + i], args, n * sizeof(args[0]));
 }
 
+static inline int syscall_get_arch(struct task_struct *tsk,
+				   struct pt_regs *regs)
+{
+	return AUDIT_ARCH_OPENRISC;
+}
 #endif
diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h
index 8bdfd2c..b3b604f 100644
--- a/arch/parisc/include/asm/syscall.h
+++ b/arch/parisc/include/asm/syscall.h
@@ -4,6 +4,8 @@
 #define _ASM_PARISC_SYSCALL_H_
 
 #include <linux/err.h>
+#include <linux/compat.h>
+#include <linux/audit.h>
 #include <asm/ptrace.h>
 
 static inline long syscall_get_nr(struct task_struct *tsk,
@@ -37,4 +39,14 @@ static inline void syscall_get_arguments(struct task_struct *tsk,
 	}
 }
 
+static inline int syscall_get_arch(struct task_struct *tsk,
+				   struct pt_regs *regs)
+{
+	int arch = AUDIT_ARCH_PARISC;
+#ifdef CONFIG_64BIT
+	if (!is_compat_task())
+		arch = AUDIT_ARCH_PARISC64;
+#endif
+	return arch;
+}
 #endif /*_ASM_PARISC_SYSCALL_H_*/
diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h
index b54b2ad..b824eb2 100644
--- a/arch/powerpc/include/asm/syscall.h
+++ b/arch/powerpc/include/asm/syscall.h
@@ -14,6 +14,8 @@
 #define _ASM_SYSCALL_H	1
 
 #include <linux/sched.h>
+#include <linux/compat.h>
+#include <linux/audit.h>
 
 /* ftrace syscalls requires exporting the sys_call_table */
 #ifdef CONFIG_FTRACE_SYSCALLS
@@ -86,4 +88,15 @@ static inline void syscall_set_arguments(struct task_struct *task,
 	memcpy(&regs->gpr[3 + i], args, n * sizeof(args[0]));
 }
 
+static inline int syscall_get_arch(struct task_struct *tsk,
+				   struct pt_regs *regs)
+{
+	int arch = AUDIT_ARCH_PPC;
+
+#ifdef CONFIG_PPC64
+	if (!is_32bit_task())
+		arch = AUDIT_ARCH_PPC64;
+#endif
+	return arch;
+}
 #endif	/* _ASM_SYSCALL_H */
diff --git a/arch/sh/include/asm/syscall.h b/arch/sh/include/asm/syscall.h
index 847128d..f1a79d4 100644
--- a/arch/sh/include/asm/syscall.h
+++ b/arch/sh/include/asm/syscall.h
@@ -9,4 +9,21 @@ extern const unsigned long sys_call_table[];
 # include <asm/syscall_64.h>
 #endif
 
+# include <linux/audit.h>
+
+static inline int syscall_get_arch(struct task_struct *tsk,
+				   struct pt_regs *regs)
+{
+	int arch = AUDIT_ARCH_SH;
+
+#ifdef CONFIG_64BIT
+	arch |= __AUDIT_ARCH_64BIT;
+#endif
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+	arch |= __AUDIT_ARCH_LE;
+#endif
+
+	return arch;
+}
+
 #endif /* __ASM_SH_SYSCALL_H */
diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h
index 025a02a..c7a8f75 100644
--- a/arch/sparc/include/asm/syscall.h
+++ b/arch/sparc/include/asm/syscall.h
@@ -3,6 +3,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/audit.h>
 #include <asm/ptrace.h>
 
 /*
@@ -124,4 +125,11 @@ static inline void syscall_set_arguments(struct task_struct *task,
 		regs->u_regs[UREG_I0 + i + j] = args[j];
 }
 
+static inline int syscall_get_arch(struct task_struct *tsk,
+				   struct pt_regs *regs)
+{
+	return test_thread_flag(TIF_32BIT) ? AUDIT_ARCH_SPARC
+					   : AUDIT_ARCH_SPARC64;
+}
+
 #endif /* __ASM_SPARC_SYSCALL_H */
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 2d48fe1..b9c4826 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -342,6 +342,7 @@ enum {
 #define AUDIT_ARCH_IA64		(EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_M32R		(EM_M32R)
 #define AUDIT_ARCH_M68K		(EM_68K)
+#define AUDIT_ARCH_MICROBLAZE	(EM_MICROBLAZE)
 #define AUDIT_ARCH_MIPS		(EM_MIPS)
 #define AUDIT_ARCH_MIPSEL	(EM_MIPS|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_MIPS64	(EM_MIPS|__AUDIT_ARCH_64BIT)
-- 
1.7.1




From - Thu Nov 08 21:10:13 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Richard Guy Briggs <rgb@redhat.com>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.redhat.security.audit,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.openrisc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH 3/6][RFC] audit: __audit_syscall_entry: ignore arch arg and call syscall_get_arch() directly
Date: Wed,  5 Mar 2014 16:27:04 -0500
Lines: 190
Approved: news@gmane.org
Message-ID: <fc170f50376a56ea82d25fbf1587f64b76177e0f.1393974970.git.rgb@redhat.com>
References: <cover.1393974970.git.rgb@redhat.com>
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Cc: Richard Guy Briggs <rgb@redhat.com>, eparis@redhat.com,
	sgrubb@redhat.com, oleg@redhat.com,
	linux-arm-kernel@lists.infradead.org, x86@kernel.org,
	linux-ia64@vger.kernel.org, microblaze-uclinux@itee.uq.edu.au,
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	sparclinux@vger.kernel.org,
	user-mode-linux-devel@lists.sourceforge.net,
	linux-arch@vger.kernel.org
To: linux-audit@redhat.com, linux-kernel@vger.kernel.org
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Xref: news.gmane.org gmane.linux.ports.sh.devel:33103 gmane.linux.redhat.security.audit:5999 gmane.linux.kernel:1661230 gmane.linux.ports.arm.kernel:307104 gmane.linux.ports.ia64:23659 gmane.linux.ports.mips.general:40563 gmane.linux.ports.openrisc:429 gmane.linux.ports.parisc:5724 gmane.linux.ports.ppc64.devel:99954 gmane.linux.ports.sparc:18748 gmane.linux.uml.devel:14381 gmane.linux.kernel.cross-arch:21958
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/33103>

Since all the callers of syscall_get_arch() presently pass "current" and none
of the arch-specific syscall_get_arch() implementations use the regs parameter,
ignore the passed in arch parameter to __audit_syscall_entry() and call
syscall_get_arch() directly.

Change the audit header file from the kernel internal to the user api version
to get the architecture numbers, but to avoid a circular header reference
between audit and syscall.h

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>

---
 arch/arm/include/asm/syscall.h        |    2 +-
 arch/ia64/include/asm/syscall.h       |    2 +-
 arch/microblaze/include/asm/syscall.h |    2 +-
 arch/mips/include/asm/syscall.h       |    2 +-
 arch/openrisc/include/asm/syscall.h   |    2 +-
 arch/parisc/include/asm/syscall.h     |    2 +-
 arch/powerpc/include/asm/syscall.h    |    2 +-
 arch/s390/include/asm/syscall.h       |    2 +-
 arch/sh/include/asm/syscall.h         |    2 +-
 arch/sparc/include/asm/syscall.h      |    2 +-
 arch/x86/include/asm/syscall.h        |    2 +-
 kernel/auditsc.c                      |    2 +-
 12 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h
index 73ddd72..a749123 100644
--- a/arch/arm/include/asm/syscall.h
+++ b/arch/arm/include/asm/syscall.h
@@ -7,7 +7,7 @@
 #ifndef _ASM_ARM_SYSCALL_H
 #define _ASM_ARM_SYSCALL_H
 
-#include <linux/audit.h> /* for AUDIT_ARCH_* */
+#include <uapi/linux/audit.h> /* for AUDIT_ARCH_* */
 #include <linux/elf.h> /* for ELF_EM */
 #include <linux/err.h>
 #include <linux/sched.h>
diff --git a/arch/ia64/include/asm/syscall.h b/arch/ia64/include/asm/syscall.h
index 0fd2a7a..9c82767 100644
--- a/arch/ia64/include/asm/syscall.h
+++ b/arch/ia64/include/asm/syscall.h
@@ -15,7 +15,7 @@
 
 #include <linux/sched.h>
 #include <linux/err.h>
-#include <linux/audit.h>
+#include <uapi/linux/audit.h>
 
 static inline long syscall_get_nr(struct task_struct *task,
 				  struct pt_regs *regs)
diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h
index 06854da..e1acf8a 100644
--- a/arch/microblaze/include/asm/syscall.h
+++ b/arch/microblaze/include/asm/syscall.h
@@ -3,7 +3,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
-#include <linux/audit.h>
+#include <uapi/linux/audit.h>
 #include <asm/ptrace.h>
 
 /* The system call number is given by the user in R12 */
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index 41ecde4..a8234f2 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -13,7 +13,7 @@
 #ifndef __ASM_MIPS_SYSCALL_H
 #define __ASM_MIPS_SYSCALL_H
 
-#include <linux/audit.h>
+#include <uapi/linux/audit.h>
 #include <linux/elf-em.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
diff --git a/arch/openrisc/include/asm/syscall.h b/arch/openrisc/include/asm/syscall.h
index 534b9c3..2bbe0e9 100644
--- a/arch/openrisc/include/asm/syscall.h
+++ b/arch/openrisc/include/asm/syscall.h
@@ -21,7 +21,7 @@
 
 #include <linux/err.h>
 #include <linux/sched.h>
-#include <linux/audit.h>
+#include <uapi/linux/audit.h>
 
 static inline int
 syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h
index b3b604f..2bf23b1 100644
--- a/arch/parisc/include/asm/syscall.h
+++ b/arch/parisc/include/asm/syscall.h
@@ -5,7 +5,7 @@
 
 #include <linux/err.h>
 #include <linux/compat.h>
-#include <linux/audit.h>
+#include <uapi/linux/audit.h>
 #include <asm/ptrace.h>
 
 static inline long syscall_get_nr(struct task_struct *tsk,
diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h
index b824eb2..36bd9ef 100644
--- a/arch/powerpc/include/asm/syscall.h
+++ b/arch/powerpc/include/asm/syscall.h
@@ -15,7 +15,7 @@
 
 #include <linux/sched.h>
 #include <linux/compat.h>
-#include <linux/audit.h>
+#include <uapi/linux/audit.h>
 
 /* ftrace syscalls requires exporting the sys_call_table */
 #ifdef CONFIG_FTRACE_SYSCALLS
diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h
index cd29d2f..79d1805 100644
--- a/arch/s390/include/asm/syscall.h
+++ b/arch/s390/include/asm/syscall.h
@@ -12,7 +12,7 @@
 #ifndef _ASM_SYSCALL_H
 #define _ASM_SYSCALL_H	1
 
-#include <linux/audit.h>
+#include <uapi/linux/audit.h>
 #include <linux/sched.h>
 #include <linux/err.h>
 #include <asm/ptrace.h>
diff --git a/arch/sh/include/asm/syscall.h b/arch/sh/include/asm/syscall.h
index f1a79d4..33e60e0 100644
--- a/arch/sh/include/asm/syscall.h
+++ b/arch/sh/include/asm/syscall.h
@@ -9,7 +9,7 @@ extern const unsigned long sys_call_table[];
 # include <asm/syscall_64.h>
 #endif
 
-# include <linux/audit.h>
+# include <uapi/linux/audit.h>
 
 static inline int syscall_get_arch(struct task_struct *tsk,
 				   struct pt_regs *regs)
diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h
index c7a8f75..eddc60e 100644
--- a/arch/sparc/include/asm/syscall.h
+++ b/arch/sparc/include/asm/syscall.h
@@ -3,7 +3,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
-#include <linux/audit.h>
+#include <uapi/linux/audit.h>
 #include <asm/ptrace.h>
 
 /*
diff --git a/arch/x86/include/asm/syscall.h b/arch/x86/include/asm/syscall.h
index aea284b..c98e0ec 100644
--- a/arch/x86/include/asm/syscall.h
+++ b/arch/x86/include/asm/syscall.h
@@ -13,7 +13,7 @@
 #ifndef _ASM_X86_SYSCALL_H
 #define _ASM_X86_SYSCALL_H
 
-#include <linux/audit.h>
+#include <uapi/linux/audit.h>
 #include <linux/sched.h>
 #include <linux/err.h>
 #include <asm/asm-offsets.h>	/* For NR_syscalls */
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 7317f46..0c9fe06 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1461,7 +1461,7 @@ void __audit_syscall_entry(int arch, int major,
 	if (!audit_enabled)
 		return;
 
-	context->arch	    = arch;
+	context->arch	    = syscall_get_arch(current, NULL);
 	context->major      = major;
 	context->argv[0]    = a1;
 	context->argv[1]    = a2;
-- 
1.7.1

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From - Thu Nov 08 21:10:14 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Richard Guy Briggs <rgb@redhat.com>
Newsgroups: gmane.linux.kernel,gmane.linux.redhat.security.audit,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.openrisc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH 4/6][RFC] audit: drop arch from audit_syscall_entry() interface
Date: Wed,  5 Mar 2014 16:27:05 -0500
Lines: 316
Approved: news@gmane.org
Message-ID: <9f2b0caedfee3018ab84d8bbe6e691bb40519d94.1393974970.git.rgb@redhat.com>
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Cc: Richard Guy Briggs <rgb@redhat.com>, eparis@redhat.com,
	sgrubb@redhat.com, oleg@redhat.com,
	linux-arm-kernel@lists.infradead.org, x86@kernel.org,
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	linux-arch@vger.kernel.org
To: linux-audit@redhat.com, linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1661231>

Make audit_syscall_entry() ignore the arch parameter passed to it and call
syscall_get_arch() locally.

Remove arch from the audit_syscall_entry() parameter list.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>

---
 arch/arm/kernel/ptrace.c        |    2 +-
 arch/ia64/kernel/ptrace.c       |    2 +-
 arch/microblaze/kernel/ptrace.c |    2 +-
 arch/mips/kernel/ptrace.c       |    3 +--
 arch/openrisc/kernel/ptrace.c   |    2 +-
 arch/parisc/kernel/ptrace.c     |    5 ++---
 arch/powerpc/kernel/ptrace.c    |    6 ++----
 arch/s390/kernel/ptrace.c       |    4 +---
 arch/sh/kernel/ptrace_32.c      |   13 +------------
 arch/sh/kernel/ptrace_64.c      |   16 +---------------
 arch/sparc/kernel/ptrace_64.c   |    5 +----
 arch/um/kernel/ptrace.c         |    3 +--
 arch/x86/kernel/ptrace.c        |    6 ++----
 arch/xtensa/kernel/ptrace.c     |    2 +-
 include/linux/audit.h           |    8 +++++---
 15 files changed, 22 insertions(+), 57 deletions(-)

diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 0dd3b79..24664f5 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -943,7 +943,7 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno)
 	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
 		trace_sys_enter(regs, scno);
 
-	audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0, regs->ARM_r1,
+	audit_syscall_entry(scno, regs->ARM_r0, regs->ARM_r1,
 			    regs->ARM_r2, regs->ARM_r3);
 
 	return scno;
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index b7a5fff..6f54d51 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -1219,7 +1219,7 @@ syscall_trace_enter (long arg0, long arg1, long arg2, long arg3,
 		ia64_sync_krbs();
 
 
-	audit_syscall_entry(AUDIT_ARCH_IA64, regs.r15, arg0, arg1, arg2, arg3);
+	audit_syscall_entry(regs.r15, arg0, arg1, arg2, arg3);
 
 	return 0;
 }
diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
index 39cf508..0abbb2e 100644
--- a/arch/microblaze/kernel/ptrace.c
+++ b/arch/microblaze/kernel/ptrace.c
@@ -147,7 +147,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 		 */
 		ret = -1L;
 
-	audit_syscall_entry(EM_MICROBLAZE, regs->r12, regs->r5, regs->r6,
+	audit_syscall_entry(regs->r12, regs->r5, regs->r6,
 			    regs->r7, regs->r8);
 
 	return ret ?: regs->r12;
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index b52e1d2..f68d75f 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -671,8 +671,7 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->regs[2]);
 
-	audit_syscall_entry(__syscall_get_arch(),
-			    regs->regs[2],
+	audit_syscall_entry(regs->regs[2],
 			    regs->regs[4], regs->regs[5],
 			    regs->regs[6], regs->regs[7]);
 }
diff --git a/arch/openrisc/kernel/ptrace.c b/arch/openrisc/kernel/ptrace.c
index 71a2a0c..c19cd19 100644
--- a/arch/openrisc/kernel/ptrace.c
+++ b/arch/openrisc/kernel/ptrace.c
@@ -187,7 +187,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 		 */
 		ret = -1L;
 
-	audit_syscall_entry(AUDIT_ARCH_OPENRISC, regs->gpr[11],
+	audit_syscall_entry(regs->gpr[11],
 			    regs->gpr[3], regs->gpr[4],
 			    regs->gpr[5], regs->gpr[6]);
 
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index e842ee2..b2f84e2 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -276,13 +276,12 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 
 #ifdef CONFIG_64BIT
 	if (!is_compat_task())
-		audit_syscall_entry(AUDIT_ARCH_PARISC64,
-			regs->gr[20],
+		audit_syscall_entry(regs->gr[20],
 			regs->gr[26], regs->gr[25],
 			regs->gr[24], regs->gr[23]);
 	else
 #endif
-		audit_syscall_entry(AUDIT_ARCH_PARISC,
+		audit_syscall_entry(
 			regs->gr[20] & 0xffffffff,
 			regs->gr[26] & 0xffffffff,
 			regs->gr[25] & 0xffffffff,
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 2e3d2bf..cabc1ca 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -1788,14 +1788,12 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 
 #ifdef CONFIG_PPC64
 	if (!is_32bit_task())
-		audit_syscall_entry(AUDIT_ARCH_PPC64,
-				    regs->gpr[0],
+		audit_syscall_entry(regs->gpr[0],
 				    regs->gpr[3], regs->gpr[4],
 				    regs->gpr[5], regs->gpr[6]);
 	else
 #endif
-		audit_syscall_entry(AUDIT_ARCH_PPC,
-				    regs->gpr[0],
+		audit_syscall_entry(regs->gpr[0],
 				    regs->gpr[3] & 0xffffffff,
 				    regs->gpr[4] & 0xffffffff,
 				    regs->gpr[5] & 0xffffffff,
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index e65c91c..2e2e7bb 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -812,9 +812,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->gprs[2]);
 
-	audit_syscall_entry(is_compat_task() ?
-				AUDIT_ARCH_S390 : AUDIT_ARCH_S390X,
-			    regs->gprs[2], regs->orig_gpr2,
+	audit_syscall_entry(regs->gprs[2], regs->orig_gpr2,
 			    regs->gprs[3], regs->gprs[4],
 			    regs->gprs[5]);
 out:
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index 668c816..313fb5a 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -484,17 +484,6 @@ long arch_ptrace(struct task_struct *child, long request,
 	return ret;
 }
 
-static inline int audit_arch(void)
-{
-	int arch = EM_SH;
-
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-	arch |= __AUDIT_ARCH_LE;
-#endif
-
-	return arch;
-}
-
 asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 {
 	long ret = 0;
@@ -513,7 +502,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->regs[0]);
 
-	audit_syscall_entry(audit_arch(), regs->regs[3],
+	audit_syscall_entry(regs->regs[3],
 			    regs->regs[4], regs->regs[5],
 			    regs->regs[6], regs->regs[7]);
 
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index af90339..0c58711 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -504,20 +504,6 @@ asmlinkage int sh64_ptrace(long request, long pid,
 	return sys_ptrace(request, pid, addr, data);
 }
 
-static inline int audit_arch(void)
-{
-	int arch = EM_SH;
-
-#ifdef CONFIG_64BIT
-	arch |= __AUDIT_ARCH_64BIT;
-#endif
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-	arch |= __AUDIT_ARCH_LE;
-#endif
-
-	return arch;
-}
-
 asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs)
 {
 	long long ret = 0;
@@ -536,7 +522,7 @@ asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs)
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->regs[9]);
 
-	audit_syscall_entry(audit_arch(), regs->regs[1],
+	audit_syscall_entry(regs->regs[1],
 			    regs->regs[2], regs->regs[3],
 			    regs->regs[4], regs->regs[5]);
 
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index c13c9f2..915d35d 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -1076,10 +1076,7 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->u_regs[UREG_G1]);
 
-	audit_syscall_entry((test_thread_flag(TIF_32BIT) ?
-			     AUDIT_ARCH_SPARC :
-			     AUDIT_ARCH_SPARC64),
-			    regs->u_regs[UREG_G1],
+	audit_syscall_entry(regs->u_regs[UREG_G1],
 			    regs->u_regs[UREG_I0],
 			    regs->u_regs[UREG_I1],
 			    regs->u_regs[UREG_I2],
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 694d551..62435ef 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -165,8 +165,7 @@ static void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs,
  */
 void syscall_trace_enter(struct pt_regs *regs)
 {
-	audit_syscall_entry(HOST_AUDIT_ARCH,
-			    UPT_SYSCALL_NR(&regs->regs),
+	audit_syscall_entry(UPT_SYSCALL_NR(&regs->regs),
 			    UPT_SYSCALL_ARG1(&regs->regs),
 			    UPT_SYSCALL_ARG2(&regs->regs),
 			    UPT_SYSCALL_ARG3(&regs->regs),
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 7461f50..7499611 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -1488,14 +1488,12 @@ long syscall_trace_enter(struct pt_regs *regs)
 		trace_sys_enter(regs, regs->orig_ax);
 
 	if (IS_IA32)
-		audit_syscall_entry(AUDIT_ARCH_I386,
-				    regs->orig_ax,
+		audit_syscall_entry(regs->orig_ax,
 				    regs->bx, regs->cx,
 				    regs->dx, regs->si);
 #ifdef CONFIG_X86_64
 	else
-		audit_syscall_entry(AUDIT_ARCH_X86_64,
-				    regs->orig_ax,
+		audit_syscall_entry(regs->orig_ax,
 				    regs->di, regs->si,
 				    regs->dx, regs->r10);
 #endif
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 562fac6..4d54b48 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -342,7 +342,7 @@ void do_syscall_trace_enter(struct pt_regs *regs)
 		do_syscall_trace();
 
 #if 0
-	audit_syscall_entry(current, AUDIT_ARCH_XTENSA..);
+	audit_syscall_entry(...);
 #endif
 }
 
diff --git a/include/linux/audit.h b/include/linux/audit.h
index aa865a9..0e63eb1 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -27,6 +27,8 @@
 #include <linux/ptrace.h>
 #include <uapi/linux/audit.h>
 
+#include <asm/syscall.h>
+
 struct audit_sig_info {
 	uid_t		uid;
 	pid_t		pid;
@@ -126,12 +128,12 @@ static inline void audit_free(struct task_struct *task)
 	if (unlikely(task->audit_context))
 		__audit_free(task);
 }
-static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
+static inline void audit_syscall_entry(int major, unsigned long a0,
 				       unsigned long a1, unsigned long a2,
 				       unsigned long a3)
 {
 	if (unlikely(current->audit_context))
-		__audit_syscall_entry(arch, major, a0, a1, a2, a3);
+		__audit_syscall_entry(syscall_get_arch(current, NULL), major, a0, a1, a2, a3);
 }
 static inline void audit_syscall_exit(void *pt_regs)
 {
@@ -307,7 +309,7 @@ static inline int audit_alloc(struct task_struct *task)
 }
 static inline void audit_free(struct task_struct *task)
 { }
-static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
+static inline void audit_syscall_entry(int major, unsigned long a0,
 				       unsigned long a1, unsigned long a2,
 				       unsigned long a3)
 { }
-- 
1.7.1


From - Thu Nov 08 21:10:14 2018
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Path: news.gmane.org!not-for-mail
From: Richard Guy Briggs <rgb@redhat.com>
Newsgroups: gmane.linux.kernel,gmane.linux.redhat.security.audit,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.openrisc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH 5/6][RFC] audit: drop args from syscall_get_arch() interface
Date: Wed,  5 Mar 2014 16:27:06 -0500
Lines: 295
Approved: news@gmane.org
Message-ID: <46abd0fd000ac83cf5c4344cdfe1e349a09cb565.1393974970.git.rgb@redhat.com>
References: <cover.1393974970.git.rgb@redhat.com>
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Xref: news.gmane.org gmane.linux.kernel:1661232 gmane.linux.redhat.security.audit:6001 gmane.linux.ports.arm.kernel:307106 gmane.linux.ports.ia64:23661 gmane.linux.ports.mips.general:40565 gmane.linux.ports.openrisc:431 gmane.linux.ports.parisc:5726 gmane.linux.ports.ppc64.devel:99956 gmane.linux.ports.sh.devel:33105 gmane.linux.ports.sparc:18750 gmane.linux.uml.devel:14383 gmane.linux.kernel.cross-arch:21960
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1661232>

Since all callers of syscall_get_arch() call with task "current" and none of
the arch-dependent functions use the "regs" parameter (which could just as
easily be found with task_pt_regs()), delete both parameters.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>

---
 arch/arm/include/asm/syscall.h        |    3 +--
 arch/ia64/include/asm/syscall.h       |    3 +--
 arch/microblaze/include/asm/syscall.h |    3 +--
 arch/mips/include/asm/syscall.h       |    8 +-------
 arch/openrisc/include/asm/syscall.h   |    3 +--
 arch/parisc/include/asm/syscall.h     |    3 +--
 arch/powerpc/include/asm/syscall.h    |    3 +--
 arch/s390/include/asm/syscall.h       |    5 ++---
 arch/sh/include/asm/syscall.h         |    3 +--
 arch/sparc/include/asm/syscall.h      |    3 +--
 arch/x86/include/asm/syscall.h        |    8 +++-----
 include/asm-generic/syscall.h         |    6 ++----
 include/linux/audit.h                 |    2 +-
 kernel/auditsc.c                      |    5 ++---
 kernel/seccomp.c                      |    4 ++--
 15 files changed, 21 insertions(+), 41 deletions(-)

diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h
index a749123..4651f69 100644
--- a/arch/arm/include/asm/syscall.h
+++ b/arch/arm/include/asm/syscall.h
@@ -103,8 +103,7 @@ static inline void syscall_set_arguments(struct task_struct *task,
 	memcpy(&regs->ARM_r0 + i, args, n * sizeof(args[0]));
 }
 
-static inline int syscall_get_arch(struct task_struct *task,
-				   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
 	/* ARM tasks don't change audit architectures on the fly. */
 	return AUDIT_ARCH_ARM;
diff --git a/arch/ia64/include/asm/syscall.h b/arch/ia64/include/asm/syscall.h
index 9c82767..1ae443a 100644
--- a/arch/ia64/include/asm/syscall.h
+++ b/arch/ia64/include/asm/syscall.h
@@ -81,8 +81,7 @@ static inline void syscall_set_arguments(struct task_struct *task,
 	ia64_syscall_get_set_arguments(task, regs, i, n, args, 1);
 }
 
-static inline int syscall_get_arch(struct task_struct *tsk,
-				   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
 	return AUDIT_ARCH_IA64;
 }
diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h
index e1acf8a..5292281 100644
--- a/arch/microblaze/include/asm/syscall.h
+++ b/arch/microblaze/include/asm/syscall.h
@@ -100,8 +100,7 @@ static inline void syscall_set_arguments(struct task_struct *task,
 asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
 asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
 
-static inline int syscall_get_arch(struct tast_struct *tsk,
-				   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
 	return AUDIT_ARCH_MICROBLAZE;
 }
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index a8234f2..992b6ab 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -101,7 +101,7 @@ extern const unsigned long sys_call_table[];
 extern const unsigned long sys32_call_table[];
 extern const unsigned long sysn32_call_table[];
 
-static inline int __syscall_get_arch(void)
+static inline int syscall_get_arch(void)
 {
 	int arch = AUDIT_ARCH_MIPS;
 #ifdef CONFIG_64BIT
@@ -113,10 +113,4 @@ static inline int __syscall_get_arch(void)
 	return arch;
 }
 
-static inline int syscall_get_arch(struct task_struct *task,
-				   struct pt_regs *regs)
-{
-	return __syscall_get_arch();
-}
-
 #endif	/* __ASM_MIPS_SYSCALL_H */
diff --git a/arch/openrisc/include/asm/syscall.h b/arch/openrisc/include/asm/syscall.h
index 2bbe0e9..e598095 100644
--- a/arch/openrisc/include/asm/syscall.h
+++ b/arch/openrisc/include/asm/syscall.h
@@ -72,8 +72,7 @@ syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
 	memcpy(&regs->gpr[3 + i], args, n * sizeof(args[0]));
 }
 
-static inline int syscall_get_arch(struct task_struct *tsk,
-				   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
 	return AUDIT_ARCH_OPENRISC;
 }
diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h
index 2bf23b1..87cc53d 100644
--- a/arch/parisc/include/asm/syscall.h
+++ b/arch/parisc/include/asm/syscall.h
@@ -39,8 +39,7 @@ static inline void syscall_get_arguments(struct task_struct *tsk,
 	}
 }
 
-static inline int syscall_get_arch(struct task_struct *tsk,
-				   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
 	int arch = AUDIT_ARCH_PARISC;
 #ifdef CONFIG_64BIT
diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h
index 36bd9ef..616705b 100644
--- a/arch/powerpc/include/asm/syscall.h
+++ b/arch/powerpc/include/asm/syscall.h
@@ -88,8 +88,7 @@ static inline void syscall_set_arguments(struct task_struct *task,
 	memcpy(&regs->gpr[3 + i], args, n * sizeof(args[0]));
 }
 
-static inline int syscall_get_arch(struct task_struct *tsk,
-				   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
 	int arch = AUDIT_ARCH_PPC;
 
diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h
index 79d1805..32cd7f7 100644
--- a/arch/s390/include/asm/syscall.h
+++ b/arch/s390/include/asm/syscall.h
@@ -89,11 +89,10 @@ static inline void syscall_set_arguments(struct task_struct *task,
 		regs->orig_gpr2 = args[0];
 }
 
-static inline int syscall_get_arch(struct task_struct *task,
-				   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
 #ifdef CONFIG_COMPAT
-	if (test_tsk_thread_flag(task, TIF_31BIT))
+	if (test_thread_flag(TIF_31BIT))
 		return AUDIT_ARCH_S390;
 #endif
 	return sizeof(long) == 8 ? AUDIT_ARCH_S390X : AUDIT_ARCH_S390;
diff --git a/arch/sh/include/asm/syscall.h b/arch/sh/include/asm/syscall.h
index 33e60e0..aac9800 100644
--- a/arch/sh/include/asm/syscall.h
+++ b/arch/sh/include/asm/syscall.h
@@ -11,8 +11,7 @@ extern const unsigned long sys_call_table[];
 
 # include <uapi/linux/audit.h>
 
-static inline int syscall_get_arch(struct task_struct *tsk,
-				   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
 	int arch = AUDIT_ARCH_SH;
 
diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h
index eddc60e..82b5b96 100644
--- a/arch/sparc/include/asm/syscall.h
+++ b/arch/sparc/include/asm/syscall.h
@@ -125,8 +125,7 @@ static inline void syscall_set_arguments(struct task_struct *task,
 		regs->u_regs[UREG_I0 + i + j] = args[j];
 }
 
-static inline int syscall_get_arch(struct task_struct *tsk,
-				   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
 	return test_thread_flag(TIF_32BIT) ? AUDIT_ARCH_SPARC
 					   : AUDIT_ARCH_SPARC64;
diff --git a/arch/x86/include/asm/syscall.h b/arch/x86/include/asm/syscall.h
index c98e0ec..d6a756a 100644
--- a/arch/x86/include/asm/syscall.h
+++ b/arch/x86/include/asm/syscall.h
@@ -91,8 +91,7 @@ static inline void syscall_set_arguments(struct task_struct *task,
 	memcpy(&regs->bx + i, args, n * sizeof(args[0]));
 }
 
-static inline int syscall_get_arch(struct task_struct *task,
-				   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
 	return AUDIT_ARCH_I386;
 }
@@ -221,8 +220,7 @@ static inline void syscall_set_arguments(struct task_struct *task,
 		}
 }
 
-static inline int syscall_get_arch(struct task_struct *task,
-				   struct pt_regs *regs)
+static inline int syscall_get_arch(void)
 {
 #ifdef CONFIG_IA32_EMULATION
 	/*
@@ -234,7 +232,7 @@ static inline int syscall_get_arch(struct task_struct *task,
 	 *
 	 * x32 tasks should be considered AUDIT_ARCH_X86_64.
 	 */
-	if (task_thread_info(task)->status & TS_COMPAT)
+	if (task_thread_info(current)->status & TS_COMPAT)
 		return AUDIT_ARCH_I386;
 #endif
 	/* Both x32 and x86_64 are considered "64-bit". */
diff --git a/include/asm-generic/syscall.h b/include/asm-generic/syscall.h
index 5b09392..0c938a4 100644
--- a/include/asm-generic/syscall.h
+++ b/include/asm-generic/syscall.h
@@ -144,16 +144,14 @@ void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
 
 /**
  * syscall_get_arch - return the AUDIT_ARCH for the current system call
- * @task:	task of interest, must be in system call entry tracing
- * @regs:	task_pt_regs() of @task
  *
  * Returns the AUDIT_ARCH_* based on the system call convention in use.
  *
- * It's only valid to call this when @task is stopped on entry to a system
+ * It's only valid to call this when current is stopped on entry to a system
  * call, due to %TIF_SYSCALL_TRACE, %TIF_SYSCALL_AUDIT, or %TIF_SECCOMP.
  *
  * Architectures which permit CONFIG_HAVE_ARCH_SECCOMP_FILTER must
  * provide an implementation of this.
  */
-int syscall_get_arch(struct task_struct *task, struct pt_regs *regs);
+int syscall_get_arch(void);
 #endif	/* _ASM_SYSCALL_H */
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 0e63eb1..ee452f1 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -133,7 +133,7 @@ static inline void audit_syscall_entry(int major, unsigned long a0,
 				       unsigned long a3)
 {
 	if (unlikely(current->audit_context))
-		__audit_syscall_entry(syscall_get_arch(current, NULL), major, a0, a1, a2, a3);
+		__audit_syscall_entry(syscall_get_arch(), major, a0, a1, a2, a3);
 }
 static inline void audit_syscall_exit(void *pt_regs)
 {
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 0c9fe06..565f7b7 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1461,7 +1461,7 @@ void __audit_syscall_entry(int arch, int major,
 	if (!audit_enabled)
 		return;
 
-	context->arch	    = syscall_get_arch(current, NULL);
+	context->arch	    = syscall_get_arch();
 	context->major      = major;
 	context->argv[0]    = a1;
 	context->argv[1]    = a2;
@@ -2416,8 +2416,7 @@ void __audit_seccomp(unsigned long syscall, long signr, int code)
 		return;
 	audit_log_task(ab);
 	audit_log_format(ab, " sig=%ld", signr);
-	audit_log_format(ab, " arch=%x",
-			 syscall_get_arch(current, task_pt_regs(current)));
+	audit_log_format(ab, " arch=%x", syscall_get_arch());
 	audit_log_format(ab, " syscall=%ld", syscall);
 	audit_log_format(ab, " compat=%d", is_compat_task());
 	audit_log_format(ab, " ip=0x%lx", KSTK_EIP(current));
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index b7a1004..eda2da3 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -95,7 +95,7 @@ u32 seccomp_bpf_load(int off)
 	if (off == BPF_DATA(nr))
 		return syscall_get_nr(current, regs);
 	if (off == BPF_DATA(arch))
-		return syscall_get_arch(current, regs);
+		return syscall_get_arch();
 	if (off >= BPF_DATA(args[0]) && off < BPF_DATA(args[6])) {
 		unsigned long value;
 		int arg = (off - BPF_DATA(args[0])) / sizeof(u64);
@@ -351,7 +351,7 @@ static void seccomp_send_sigsys(int syscall, int reason)
 	info.si_code = SYS_SECCOMP;
 	info.si_call_addr = (void __user *)KSTK_EIP(current);
 	info.si_errno = reason;
-	info.si_arch = syscall_get_arch(current, task_pt_regs(current));
+	info.si_arch = syscall_get_arch();
 	info.si_syscall = syscall;
 	force_sig_info(SIGSYS, &info, current);
 }
-- 
1.7.1


From - Thu Nov 08 21:10:14 2018
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X-Mozilla-Keys:                                                                                 
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From: Richard Guy Briggs <rgb@redhat.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.redhat.security.audit,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.openrisc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel
Subject: [PATCH 6/6][RFC] audit: drop arch from __audit_syscall_entry() interface
Date: Wed,  5 Mar 2014 16:27:07 -0500
Lines: 136
Approved: news@gmane.org
Message-ID: <fdcaea27c06177b1d5a23b08e42c5e68bbdc8e76.1393974970.git.rgb@redhat.com>
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Cc: Richard Guy Briggs <rgb@redhat.com>, eparis@redhat.com,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/21961>

Since arch is found locally in __audit_syscall_entry(), there is no need to
pass it in as a parameter.  Delete it from the parameter list.

x86* was the only arch to call __audit_syscall_entry() directly and did so from
assembly code.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>

---
Can I get some constructive scrutiny from the x86 asm guys here?  It has been a
long time since I've played with x86 assembly code (and never x86_64).  I've
done automated build/regression tests on i686 and x86_64, and I've done manual
tests on an x86_64 virtual machine and everything appears to work fine.  Thanks!

 arch/x86/ia32/ia32entry.S  |   12 ++++++------
 arch/x86/kernel/entry_32.S |   11 +++++------
 arch/x86/kernel/entry_64.S |   11 +++++------
 include/linux/audit.h      |    7 ++-----
 kernel/auditsc.c           |    2 +-
 5 files changed, 19 insertions(+), 24 deletions(-)

diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index 4299eb0..f5bdd28 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -186,12 +186,12 @@ sysexit_from_sys_call:
 
 #ifdef CONFIG_AUDITSYSCALL
 	.macro auditsys_entry_common
-	movl %esi,%r9d			/* 6th arg: 4th syscall arg */
-	movl %edx,%r8d			/* 5th arg: 3rd syscall arg */
-	/* (already in %ecx)		   4th arg: 2nd syscall arg */
-	movl %ebx,%edx			/* 3rd arg: 1st syscall arg */
-	movl %eax,%esi			/* 2nd arg: syscall number */
-	movl $AUDIT_ARCH_I386,%edi	/* 1st arg: audit arch */
+	movl %esi,%r8d			/* 5th arg: 4th syscall arg */
+	movl %ecx,%r9d			/*swap with edx*/
+	movl %edx,%ecx			/* 4th arg: 3rd syscall arg */
+	movl %r9d,%edx			/* 3rd arg: 2nd syscall arg */
+	movl %ebx,%esi			/* 2nd arg: 1st syscall arg */
+	movl %eax,%edi			/* 1st arg: syscall number */
 	call __audit_syscall_entry
 	movl RAX-ARGOFFSET(%rsp),%eax	/* reload syscall number */
 	cmpq $(IA32_NR_syscalls-1),%rax
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index a2a4f46..078053e 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -456,12 +456,11 @@ sysenter_audit:
 	jnz syscall_trace_entry
 	addl $4,%esp
 	CFI_ADJUST_CFA_OFFSET -4
-	/* %esi already in 8(%esp)	   6th arg: 4th syscall arg */
-	/* %edx already in 4(%esp)	   5th arg: 3rd syscall arg */
-	/* %ecx already in 0(%esp)	   4th arg: 2nd syscall arg */
-	movl %ebx,%ecx			/* 3rd arg: 1st syscall arg */
-	movl %eax,%edx			/* 2nd arg: syscall number */
-	movl $AUDIT_ARCH_I386,%eax	/* 1st arg: audit arch */
+	movl %esi,4(%esp)		/* 5th arg: 4th syscall arg */
+	movl %edx,(%esp)		/* 4th arg: 3rd syscall arg */
+	/* %ecx already in %ecx		   3rd arg: 2nd syscall arg */
+	movl %ebx,%edx			/* 2nd arg: 1st syscall arg */
+	/* %eax already in %eax		   1st arg: syscall number */
 	call __audit_syscall_entry
 	pushl_cfi %ebx
 	movl PT_EAX(%esp),%eax		/* reload syscall number */
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 1e96c36..8292ff7 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -694,12 +694,11 @@ badsys:
 	 * jump back to the normal fast path.
 	 */
 auditsys:
-	movq %r10,%r9			/* 6th arg: 4th syscall arg */
-	movq %rdx,%r8			/* 5th arg: 3rd syscall arg */
-	movq %rsi,%rcx			/* 4th arg: 2nd syscall arg */
-	movq %rdi,%rdx			/* 3rd arg: 1st syscall arg */
-	movq %rax,%rsi			/* 2nd arg: syscall number */
-	movl $AUDIT_ARCH_X86_64,%edi	/* 1st arg: audit arch */
+	movq %r10,%r8			/* 5th arg: 4th syscall arg */
+	movq %rdx,%rcx			/* 4th arg: 3rd syscall arg */
+	movq %rsi,%rdx			/* 3rd arg: 2nd syscall arg */
+	movq %rdi,%rsi			/* 2nd arg: 1st syscall arg */
+	movq %rax,%rdi			/* 1st arg: syscall number */
 	call __audit_syscall_entry
 	LOAD_ARGS 0		/* reload call-clobbered registers */
 	jmp system_call_fastpath
diff --git a/include/linux/audit.h b/include/linux/audit.h
index ee452f1..278bc9d 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -27,8 +27,6 @@
 #include <linux/ptrace.h>
 #include <uapi/linux/audit.h>
 
-#include <asm/syscall.h>
-
 struct audit_sig_info {
 	uid_t		uid;
 	pid_t		pid;
@@ -100,8 +98,7 @@ extern void audit_log_session_info(struct audit_buffer *ab);
 				/* Public API */
 extern int  audit_alloc(struct task_struct *task);
 extern void __audit_free(struct task_struct *task);
-extern void __audit_syscall_entry(int arch,
-				  int major, unsigned long a0, unsigned long a1,
+extern void __audit_syscall_entry(int major, unsigned long a0, unsigned long a1,
 				  unsigned long a2, unsigned long a3);
 extern void __audit_syscall_exit(int ret_success, long ret_value);
 extern struct filename *__audit_reusename(const __user char *uptr);
@@ -133,7 +130,7 @@ static inline void audit_syscall_entry(int major, unsigned long a0,
 				       unsigned long a3)
 {
 	if (unlikely(current->audit_context))
-		__audit_syscall_entry(syscall_get_arch(), major, a0, a1, a2, a3);
+		__audit_syscall_entry(major, a0, a1, a2, a3);
 }
 static inline void audit_syscall_exit(void *pt_regs)
 {
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 565f7b7..a4e4447 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1445,7 +1445,7 @@ void __audit_free(struct task_struct *tsk)
  * will only be written if another part of the kernel requests that it
  * be written).
  */
-void __audit_syscall_entry(int arch, int major,
+void __audit_syscall_entry(int major,
 			 unsigned long a1, unsigned long a2,
 			 unsigned long a3, unsigned long a4)
 {
-- 
1.7.1


From - Thu Nov 08 21:10:14 2018
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From - Thu Nov 08 21:10:14 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Eric Paris <eparis@redhat.com>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.redhat.security.audit,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.openrisc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 3/4] ARCH: AUDIT: implement syscall_get_arch for all arches
Date: Wed, 19 Mar 2014 18:04:02 -0400
Lines: 202
Approved: news@gmane.org
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	linux@openrisc.net, linux-parisc@vger.kernel.org,
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To: linux-audit@redhat.com
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For all arches which support audit implement syscall_get_arch()
They are all pretty easy and straight forward, stolen from how the call
to audit_syscall_entry() determines the arch.

Signed-off-by: Eric Paris <eparis@redhat.com>
Cc: linux-ia64@vger.kernel.org
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: linux-mips@linux-mips.org
Cc: linux@lists.openrisc.net
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
---
 arch/ia64/include/asm/syscall.h       |  6 ++++++
 arch/microblaze/include/asm/syscall.h |  5 +++++
 arch/mips/include/asm/syscall.h       |  2 +-
 arch/openrisc/include/asm/syscall.h   |  5 +++++
 arch/parisc/include/asm/syscall.h     | 11 +++++++++++
 arch/powerpc/include/asm/syscall.h    | 12 ++++++++++++
 arch/sparc/include/asm/syscall.h      |  8 ++++++++
 include/uapi/linux/audit.h            |  1 +
 8 files changed, 49 insertions(+), 1 deletion(-)

diff --git a/arch/ia64/include/asm/syscall.h b/arch/ia64/include/asm/syscall.h
index a7ff1c6..1d0b875 100644
--- a/arch/ia64/include/asm/syscall.h
+++ b/arch/ia64/include/asm/syscall.h
@@ -13,6 +13,7 @@
 #ifndef _ASM_SYSCALL_H
 #define _ASM_SYSCALL_H	1
 
+#include <uapi/linux/audit.h>
 #include <linux/sched.h>
 #include <linux/err.h>
 
@@ -79,4 +80,9 @@ static inline void syscall_set_arguments(struct task_struct *task,
 
 	ia64_syscall_get_set_arguments(task, regs, i, n, args, 1);
 }
+
+static inline int syscall_get_arch(void)
+{
+	return AUDIT_ARCH_IA64;
+}
 #endif	/* _ASM_SYSCALL_H */
diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h
index 9bc4317..53cfaf3 100644
--- a/arch/microblaze/include/asm/syscall.h
+++ b/arch/microblaze/include/asm/syscall.h
@@ -1,6 +1,7 @@
 #ifndef __ASM_MICROBLAZE_SYSCALL_H
 #define __ASM_MICROBLAZE_SYSCALL_H
 
+#include <uapi/linux/audit.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <asm/ptrace.h>
@@ -99,4 +100,8 @@ static inline void syscall_set_arguments(struct task_struct *task,
 asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
 asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
 
+static inline int syscall_get_arch(void)
+{
+	return AUDIT_ARCH_MICROBLAZE;
+}
 #endif /* __ASM_MICROBLAZE_SYSCALL_H */
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index fc556d8..992b6ab 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -103,7 +103,7 @@ extern const unsigned long sysn32_call_table[];
 
 static inline int syscall_get_arch(void)
 {
-	int arch = EM_MIPS;
+	int arch = AUDIT_ARCH_MIPS;
 #ifdef CONFIG_64BIT
 	arch |=  __AUDIT_ARCH_64BIT;
 #endif
diff --git a/arch/openrisc/include/asm/syscall.h b/arch/openrisc/include/asm/syscall.h
index b752bb6..2db9f1c 100644
--- a/arch/openrisc/include/asm/syscall.h
+++ b/arch/openrisc/include/asm/syscall.h
@@ -19,6 +19,7 @@
 #ifndef __ASM_OPENRISC_SYSCALL_H__
 #define __ASM_OPENRISC_SYSCALL_H__
 
+#include <uapi/linux/audit.h>
 #include <linux/err.h>
 #include <linux/sched.h>
 
@@ -71,4 +72,8 @@ syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
 	memcpy(&regs->gpr[3 + i], args, n * sizeof(args[0]));
 }
 
+static inline int syscall_get_arch(void)
+{
+	return AUDIT_ARCH_OPENRISC;
+}
 #endif
diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h
index 8bdfd2c..a5eba95 100644
--- a/arch/parisc/include/asm/syscall.h
+++ b/arch/parisc/include/asm/syscall.h
@@ -3,6 +3,8 @@
 #ifndef _ASM_PARISC_SYSCALL_H_
 #define _ASM_PARISC_SYSCALL_H_
 
+#include <uapi/linux/audit.h>
+#include <linux/compat.h>
 #include <linux/err.h>
 #include <asm/ptrace.h>
 
@@ -37,4 +39,13 @@ static inline void syscall_get_arguments(struct task_struct *tsk,
 	}
 }
 
+static inline int syscall_get_arch(void)
+{
+	int arch = AUDIT_ARCH_PARISC;
+#ifdef CONFIG_64BIT
+	if (!is_compat_task())
+		arch = AUDIT_ARCH_PARISC64;
+#endif
+	return arch;
+}
 #endif /*_ASM_PARISC_SYSCALL_H_*/
diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h
index b54b2ad..4271544 100644
--- a/arch/powerpc/include/asm/syscall.h
+++ b/arch/powerpc/include/asm/syscall.h
@@ -13,6 +13,8 @@
 #ifndef _ASM_SYSCALL_H
 #define _ASM_SYSCALL_H	1
 
+#include <uapi/linux/audit.h>
+#include <linux/compat.h>
 #include <linux/sched.h>
 
 /* ftrace syscalls requires exporting the sys_call_table */
@@ -86,4 +88,14 @@ static inline void syscall_set_arguments(struct task_struct *task,
 	memcpy(&regs->gpr[3 + i], args, n * sizeof(args[0]));
 }
 
+static inline int syscall_get_arch(void)
+{
+	int arch = AUDIT_ARCH_PPC;
+
+#ifdef CONFIG_PPC64
+	if (!is_32bit_task())
+		arch = AUDIT_ARCH_PPC64;
+#endif
+	return arch;
+}
 #endif	/* _ASM_SYSCALL_H */
diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h
index 025a02a..fed3d51 100644
--- a/arch/sparc/include/asm/syscall.h
+++ b/arch/sparc/include/asm/syscall.h
@@ -1,9 +1,11 @@
 #ifndef __ASM_SPARC_SYSCALL_H
 #define __ASM_SPARC_SYSCALL_H
 
+#include <uapi/linux/audit.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <asm/ptrace.h>
+#include <asm/thread_info.h>
 
 /*
  * The syscall table always contains 32 bit pointers since we know that the
@@ -124,4 +126,10 @@ static inline void syscall_set_arguments(struct task_struct *task,
 		regs->u_regs[UREG_I0 + i + j] = args[j];
 }
 
+static inline int syscall_get_arch(void)
+{
+	return test_thread_flag(TIF_32BIT) ? AUDIT_ARCH_SPARC
+					   : AUDIT_ARCH_SPARC64;
+}
+
 #endif /* __ASM_SPARC_SYSCALL_H */
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 9af01d7..8496cfa 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -343,6 +343,7 @@ enum {
 #define AUDIT_ARCH_IA64		(EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_M32R		(EM_M32R)
 #define AUDIT_ARCH_M68K		(EM_68K)
+#define AUDIT_ARCH_MICROBLAZE	(EM_MICROBLAZE)
 #define AUDIT_ARCH_MIPS		(EM_MIPS)
 #define AUDIT_ARCH_MIPSEL	(EM_MIPS|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_MIPS64	(EM_MIPS|__AUDIT_ARCH_64BIT)
-- 
1.8.5.3

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Subject: Re: [PATCH 3/4] ARCH: AUDIT: implement syscall_get_arch for all arches
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On Wed, Mar 19, 2014 at 3:04 PM, Eric Paris <eparis@redhat.com> wrote:
> For all arches which support audit implement syscall_get_arch()

support audit -- is that AUDIT_ARCH? If so, alpha gained support
recently, so I think this patch needs to handle alpha too?
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Subject: [PATCH 4/4] ARCH: AUDIT: audit_syscall_entry() should not require the arch
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We have a function where the arch can be queried, syscall_get_arch().
So rather than have every single piece of arch specific code use and/or
duplicate syscall_get_arch(), just have the audit code use the
syscall_get_arch() code.

Signed-off-by: Eric Paris <eparis@redhat.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-ia64@vger.kernel.org
Cc: microblaze-uclinux@itee.uq.edu.au
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Cc: sparclinux@vger.kernel.org
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: linux-xtensa@linux-xtensa.org
Cc: x86@kernel.org
---
 arch/alpha/kernel/ptrace.c      |  2 +-
 arch/arm/kernel/ptrace.c        |  4 ++--
 arch/ia64/kernel/ptrace.c       |  2 +-
 arch/microblaze/kernel/ptrace.c |  3 +--
 arch/mips/kernel/ptrace.c       |  4 +---
 arch/openrisc/kernel/ptrace.c   |  3 +--
 arch/parisc/kernel/ptrace.c     |  9 +++------
 arch/powerpc/kernel/ptrace.c    |  7 ++-----
 arch/s390/kernel/ptrace.c       |  4 +---
 arch/sh/kernel/ptrace_32.c      | 14 +-------------
 arch/sh/kernel/ptrace_64.c      | 17 +----------------
 arch/sparc/kernel/ptrace_64.c   |  9 ++-------
 arch/um/kernel/ptrace.c         |  3 +--
 arch/x86/kernel/ptrace.c        |  8 ++------
 arch/x86/um/asm/ptrace.h        |  4 ----
 arch/xtensa/kernel/ptrace.c     |  2 +-
 include/linux/audit.h           |  7 ++++---
 17 files changed, 25 insertions(+), 77 deletions(-)

diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
index 86d8351..d9ee817 100644
--- a/arch/alpha/kernel/ptrace.c
+++ b/arch/alpha/kernel/ptrace.c
@@ -321,7 +321,7 @@ asmlinkage unsigned long syscall_trace_enter(void)
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
 	    tracehook_report_syscall_entry(current_pt_regs()))
 		ret = -1UL;
-	audit_syscall_entry(AUDIT_ARCH_ALPHA, regs->r0, regs->r16, regs->r17, regs->r18, regs->r19);
+	audit_syscall_entry(regs->r0, regs->r16, regs->r17, regs->r18, regs->r19);
 	return ret ?: current_pt_regs()->r0;
 }
 
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 0dd3b79..c9d2b34 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -943,8 +943,8 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno)
 	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
 		trace_sys_enter(regs, scno);
 
-	audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0, regs->ARM_r1,
-			    regs->ARM_r2, regs->ARM_r3);
+	audit_syscall_entry(scno, regs->ARM_r0, regs->ARM_r1, regs->ARM_r2,
+			    regs->ARM_r3);
 
 	return scno;
 }
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index b7a5fff..6f54d51 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -1219,7 +1219,7 @@ syscall_trace_enter (long arg0, long arg1, long arg2, long arg3,
 		ia64_sync_krbs();
 
 
-	audit_syscall_entry(AUDIT_ARCH_IA64, regs.r15, arg0, arg1, arg2, arg3);
+	audit_syscall_entry(regs.r15, arg0, arg1, arg2, arg3);
 
 	return 0;
 }
diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
index 39cf508..bb10637 100644
--- a/arch/microblaze/kernel/ptrace.c
+++ b/arch/microblaze/kernel/ptrace.c
@@ -147,8 +147,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 		 */
 		ret = -1L;
 
-	audit_syscall_entry(EM_MICROBLAZE, regs->r12, regs->r5, regs->r6,
-			    regs->r7, regs->r8);
+	audit_syscall_entry(regs->r12, regs->r5, regs->r6, regs->r7, regs->r8);
 
 	return ret ?: regs->r12;
 }
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 65ba622..c06bb82 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -671,9 +671,7 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->regs[2]);
 
-	audit_syscall_entry(syscall_get_arch(),
-			    regs->regs[2],
-			    regs->regs[4], regs->regs[5],
+	audit_syscall_entry(regs->regs[2], regs->regs[4], regs->regs[5],
 			    regs->regs[6], regs->regs[7]);
 }
 
diff --git a/arch/openrisc/kernel/ptrace.c b/arch/openrisc/kernel/ptrace.c
index 71a2a0c..4f59fa4 100644
--- a/arch/openrisc/kernel/ptrace.c
+++ b/arch/openrisc/kernel/ptrace.c
@@ -187,8 +187,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 		 */
 		ret = -1L;
 
-	audit_syscall_entry(AUDIT_ARCH_OPENRISC, regs->gpr[11],
-			    regs->gpr[3], regs->gpr[4],
+	audit_syscall_entry(regs->gpr[11], regs->gpr[3], regs->gpr[4],
 			    regs->gpr[5], regs->gpr[6]);
 
 	return ret ? : regs->gpr[11];
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index e842ee2..7481457 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -276,14 +276,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 
 #ifdef CONFIG_64BIT
 	if (!is_compat_task())
-		audit_syscall_entry(AUDIT_ARCH_PARISC64,
-			regs->gr[20],
-			regs->gr[26], regs->gr[25],
-			regs->gr[24], regs->gr[23]);
+		audit_syscall_entry(regs->gr[20], regs->gr[26], regs->gr[25],
+				    regs->gr[24], regs->gr[23]);
 	else
 #endif
-		audit_syscall_entry(AUDIT_ARCH_PARISC,
-			regs->gr[20] & 0xffffffff,
+		audit_syscall_entry(regs->gr[20] & 0xffffffff,
 			regs->gr[26] & 0xffffffff,
 			regs->gr[25] & 0xffffffff,
 			regs->gr[24] & 0xffffffff,
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 2e3d2bf..524a943 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -1788,14 +1788,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 
 #ifdef CONFIG_PPC64
 	if (!is_32bit_task())
-		audit_syscall_entry(AUDIT_ARCH_PPC64,
-				    regs->gpr[0],
-				    regs->gpr[3], regs->gpr[4],
+		audit_syscall_entry(regs->gpr[0], regs->gpr[3], regs->gpr[4],
 				    regs->gpr[5], regs->gpr[6]);
 	else
 #endif
-		audit_syscall_entry(AUDIT_ARCH_PPC,
-				    regs->gpr[0],
+		audit_syscall_entry(regs->gpr[0],
 				    regs->gpr[3] & 0xffffffff,
 				    regs->gpr[4] & 0xffffffff,
 				    regs->gpr[5] & 0xffffffff,
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index e65c91c..2e2e7bb5 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -812,9 +812,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->gprs[2]);
 
-	audit_syscall_entry(is_compat_task() ?
-				AUDIT_ARCH_S390 : AUDIT_ARCH_S390X,
-			    regs->gprs[2], regs->orig_gpr2,
+	audit_syscall_entry(regs->gprs[2], regs->orig_gpr2,
 			    regs->gprs[3], regs->gprs[4],
 			    regs->gprs[5]);
 out:
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index 668c816..c1a6b89 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -484,17 +484,6 @@ long arch_ptrace(struct task_struct *child, long request,
 	return ret;
 }
 
-static inline int audit_arch(void)
-{
-	int arch = EM_SH;
-
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-	arch |= __AUDIT_ARCH_LE;
-#endif
-
-	return arch;
-}
-
 asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 {
 	long ret = 0;
@@ -513,8 +502,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->regs[0]);
 
-	audit_syscall_entry(audit_arch(), regs->regs[3],
-			    regs->regs[4], regs->regs[5],
+	audit_syscall_entry(regs->regs[3], regs->regs[4], regs->regs[5],
 			    regs->regs[6], regs->regs[7]);
 
 	return ret ?: regs->regs[0];
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index af90339..5cea973 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -504,20 +504,6 @@ asmlinkage int sh64_ptrace(long request, long pid,
 	return sys_ptrace(request, pid, addr, data);
 }
 
-static inline int audit_arch(void)
-{
-	int arch = EM_SH;
-
-#ifdef CONFIG_64BIT
-	arch |= __AUDIT_ARCH_64BIT;
-#endif
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-	arch |= __AUDIT_ARCH_LE;
-#endif
-
-	return arch;
-}
-
 asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs)
 {
 	long long ret = 0;
@@ -536,8 +522,7 @@ asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs)
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->regs[9]);
 
-	audit_syscall_entry(audit_arch(), regs->regs[1],
-			    regs->regs[2], regs->regs[3],
+	audit_syscall_entry(regs->regs[1], regs->regs[2], regs->regs[3],
 			    regs->regs[4], regs->regs[5]);
 
 	return ret ?: regs->regs[9];
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index c13c9f2..9ddc492 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -1076,13 +1076,8 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->u_regs[UREG_G1]);
 
-	audit_syscall_entry((test_thread_flag(TIF_32BIT) ?
-			     AUDIT_ARCH_SPARC :
-			     AUDIT_ARCH_SPARC64),
-			    regs->u_regs[UREG_G1],
-			    regs->u_regs[UREG_I0],
-			    regs->u_regs[UREG_I1],
-			    regs->u_regs[UREG_I2],
+	audit_syscall_entry(regs->u_regs[UREG_G1], regs->u_regs[UREG_I0],
+			    regs->u_regs[UREG_I1], regs->u_regs[UREG_I2],
 			    regs->u_regs[UREG_I3]);
 
 	return ret;
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 694d551..62435ef 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -165,8 +165,7 @@ static void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs,
  */
 void syscall_trace_enter(struct pt_regs *regs)
 {
-	audit_syscall_entry(HOST_AUDIT_ARCH,
-			    UPT_SYSCALL_NR(&regs->regs),
+	audit_syscall_entry(UPT_SYSCALL_NR(&regs->regs),
 			    UPT_SYSCALL_ARG1(&regs->regs),
 			    UPT_SYSCALL_ARG2(&regs->regs),
 			    UPT_SYSCALL_ARG3(&regs->regs),
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 7461f50..46dfba6 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -1488,15 +1488,11 @@ long syscall_trace_enter(struct pt_regs *regs)
 		trace_sys_enter(regs, regs->orig_ax);
 
 	if (IS_IA32)
-		audit_syscall_entry(AUDIT_ARCH_I386,
-				    regs->orig_ax,
-				    regs->bx, regs->cx,
+		audit_syscall_entry(regs->orig_ax, regs->bx, regs->cx,
 				    regs->dx, regs->si);
 #ifdef CONFIG_X86_64
 	else
-		audit_syscall_entry(AUDIT_ARCH_X86_64,
-				    regs->orig_ax,
-				    regs->di, regs->si,
+		audit_syscall_entry(regs->orig_ax, regs->di, regs->si,
 				    regs->dx, regs->r10);
 #endif
 
diff --git a/arch/x86/um/asm/ptrace.h b/arch/x86/um/asm/ptrace.h
index 54f8102..e59eef2 100644
--- a/arch/x86/um/asm/ptrace.h
+++ b/arch/x86/um/asm/ptrace.h
@@ -47,8 +47,6 @@ struct user_desc;
 
 #ifdef CONFIG_X86_32
 
-#define HOST_AUDIT_ARCH AUDIT_ARCH_I386
-
 extern int ptrace_get_thread_area(struct task_struct *child, int idx,
                                   struct user_desc __user *user_desc);
 
@@ -57,8 +55,6 @@ extern int ptrace_set_thread_area(struct task_struct *child, int idx,
 
 #else
 
-#define HOST_AUDIT_ARCH AUDIT_ARCH_X86_64
-
 #define PT_REGS_R8(r) UPT_R8(&(r)->regs)
 #define PT_REGS_R9(r) UPT_R9(&(r)->regs)
 #define PT_REGS_R10(r) UPT_R10(&(r)->regs)
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 562fac6..4d54b48 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -342,7 +342,7 @@ void do_syscall_trace_enter(struct pt_regs *regs)
 		do_syscall_trace();
 
 #if 0
-	audit_syscall_entry(current, AUDIT_ARCH_XTENSA..);
+	audit_syscall_entry(...);
 #endif
 }
 
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 4b2983e..62c9d98 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -26,6 +26,7 @@
 #include <linux/sched.h>
 #include <linux/ptrace.h>
 #include <uapi/linux/audit.h>
+#include <asm/syscall.h>
 
 struct audit_sig_info {
 	uid_t		uid;
@@ -135,12 +136,12 @@ static inline void audit_free(struct task_struct *task)
 	if (unlikely(task->audit_context))
 		__audit_free(task);
 }
-static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
+static inline void audit_syscall_entry(int major, unsigned long a0,
 				       unsigned long a1, unsigned long a2,
 				       unsigned long a3)
 {
 	if (unlikely(current->audit_context))
-		__audit_syscall_entry(arch, major, a0, a1, a2, a3);
+		__audit_syscall_entry(syscall_get_arch(), major, a0, a1, a2, a3);
 }
 static inline void audit_syscall_exit(void *pt_regs)
 {
@@ -316,7 +317,7 @@ static inline int audit_alloc(struct task_struct *task)
 }
 static inline void audit_free(struct task_struct *task)
 { }
-static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
+static inline void audit_syscall_entry(int major, unsigned long a0,
 				       unsigned long a1, unsigned long a2,
 				       unsigned long a3)
 { }
-- 
1.8.5.3




From - Thu Nov 08 21:10:15 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Eric Paris <eparis@redhat.com>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.redhat.security.audit,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.openrisc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 3/4] ARCH: AUDIT: implement syscall_get_arch for all
 arches
Date: Wed, 19 Mar 2014 19:02:24 -0400
Lines: 16
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	linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org
To: Matt Turner <mattst88@gmail.com>
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On Wed, 2014-03-19 at 15:19 -0700, Matt Turner wrote:
> On Wed, Mar 19, 2014 at 3:04 PM, Eric Paris <eparis@redhat.com> wrote:
> > For all arches which support audit implement syscall_get_arch()
> 
> support audit -- is that AUDIT_ARCH? If so, alpha gained support
> recently, so I think this patch needs to handle alpha too?

Absolutely right.  I broke Alpha (in the next patch).  Will fix.

-Eric

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From - Thu Nov 08 21:10:15 2018
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Subject: Re: [PATCH 3/4] ARCH: AUDIT: implement syscall_get_arch for all
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/23705>

On 14/03/19, Eric Paris wrote:
> For all arches which support audit implement syscall_get_arch()
> They are all pretty easy and straight forward, stolen from how the call
> to audit_syscall_entry() determines the arch.
> 
> Signed-off-by: Eric Paris <eparis@redhat.com>
> Cc: linux-ia64@vger.kernel.org
> Cc: microblaze-uclinux@itee.uq.edu.au
> Cc: linux-mips@linux-mips.org
> Cc: linux@lists.openrisc.net
> Cc: linux-parisc@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: sparclinux@vger.kernel.org

Acked-by: Richard Guy Briggs <rgb@redhat.com>

> ---
>  arch/ia64/include/asm/syscall.h       |  6 ++++++
>  arch/microblaze/include/asm/syscall.h |  5 +++++
>  arch/mips/include/asm/syscall.h       |  2 +-
>  arch/openrisc/include/asm/syscall.h   |  5 +++++
>  arch/parisc/include/asm/syscall.h     | 11 +++++++++++
>  arch/powerpc/include/asm/syscall.h    | 12 ++++++++++++
>  arch/sparc/include/asm/syscall.h      |  8 ++++++++
>  include/uapi/linux/audit.h            |  1 +
>  8 files changed, 49 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/ia64/include/asm/syscall.h b/arch/ia64/include/asm/syscall.h
> index a7ff1c6..1d0b875 100644
> --- a/arch/ia64/include/asm/syscall.h
> +++ b/arch/ia64/include/asm/syscall.h
> @@ -13,6 +13,7 @@
>  #ifndef _ASM_SYSCALL_H
>  #define _ASM_SYSCALL_H	1
>  
> +#include <uapi/linux/audit.h>
>  #include <linux/sched.h>
>  #include <linux/err.h>
>  
> @@ -79,4 +80,9 @@ static inline void syscall_set_arguments(struct task_struct *task,
>  
>  	ia64_syscall_get_set_arguments(task, regs, i, n, args, 1);
>  }
> +
> +static inline int syscall_get_arch(void)
> +{
> +	return AUDIT_ARCH_IA64;
> +}
>  #endif	/* _ASM_SYSCALL_H */
> diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h
> index 9bc4317..53cfaf3 100644
> --- a/arch/microblaze/include/asm/syscall.h
> +++ b/arch/microblaze/include/asm/syscall.h
> @@ -1,6 +1,7 @@
>  #ifndef __ASM_MICROBLAZE_SYSCALL_H
>  #define __ASM_MICROBLAZE_SYSCALL_H
>  
> +#include <uapi/linux/audit.h>
>  #include <linux/kernel.h>
>  #include <linux/sched.h>
>  #include <asm/ptrace.h>
> @@ -99,4 +100,8 @@ static inline void syscall_set_arguments(struct task_struct *task,
>  asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
>  asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
>  
> +static inline int syscall_get_arch(void)
> +{
> +	return AUDIT_ARCH_MICROBLAZE;
> +}
>  #endif /* __ASM_MICROBLAZE_SYSCALL_H */
> diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
> index fc556d8..992b6ab 100644
> --- a/arch/mips/include/asm/syscall.h
> +++ b/arch/mips/include/asm/syscall.h
> @@ -103,7 +103,7 @@ extern const unsigned long sysn32_call_table[];
>  
>  static inline int syscall_get_arch(void)
>  {
> -	int arch = EM_MIPS;
> +	int arch = AUDIT_ARCH_MIPS;
>  #ifdef CONFIG_64BIT
>  	arch |=  __AUDIT_ARCH_64BIT;
>  #endif
> diff --git a/arch/openrisc/include/asm/syscall.h b/arch/openrisc/include/asm/syscall.h
> index b752bb6..2db9f1c 100644
> --- a/arch/openrisc/include/asm/syscall.h
> +++ b/arch/openrisc/include/asm/syscall.h
> @@ -19,6 +19,7 @@
>  #ifndef __ASM_OPENRISC_SYSCALL_H__
>  #define __ASM_OPENRISC_SYSCALL_H__
>  
> +#include <uapi/linux/audit.h>
>  #include <linux/err.h>
>  #include <linux/sched.h>
>  
> @@ -71,4 +72,8 @@ syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
>  	memcpy(&regs->gpr[3 + i], args, n * sizeof(args[0]));
>  }
>  
> +static inline int syscall_get_arch(void)
> +{
> +	return AUDIT_ARCH_OPENRISC;
> +}
>  #endif
> diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h
> index 8bdfd2c..a5eba95 100644
> --- a/arch/parisc/include/asm/syscall.h
> +++ b/arch/parisc/include/asm/syscall.h
> @@ -3,6 +3,8 @@
>  #ifndef _ASM_PARISC_SYSCALL_H_
>  #define _ASM_PARISC_SYSCALL_H_
>  
> +#include <uapi/linux/audit.h>
> +#include <linux/compat.h>
>  #include <linux/err.h>
>  #include <asm/ptrace.h>
>  
> @@ -37,4 +39,13 @@ static inline void syscall_get_arguments(struct task_struct *tsk,
>  	}
>  }
>  
> +static inline int syscall_get_arch(void)
> +{
> +	int arch = AUDIT_ARCH_PARISC;
> +#ifdef CONFIG_64BIT
> +	if (!is_compat_task())
> +		arch = AUDIT_ARCH_PARISC64;
> +#endif
> +	return arch;
> +}
>  #endif /*_ASM_PARISC_SYSCALL_H_*/
> diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h
> index b54b2ad..4271544 100644
> --- a/arch/powerpc/include/asm/syscall.h
> +++ b/arch/powerpc/include/asm/syscall.h
> @@ -13,6 +13,8 @@
>  #ifndef _ASM_SYSCALL_H
>  #define _ASM_SYSCALL_H	1
>  
> +#include <uapi/linux/audit.h>
> +#include <linux/compat.h>
>  #include <linux/sched.h>
>  
>  /* ftrace syscalls requires exporting the sys_call_table */
> @@ -86,4 +88,14 @@ static inline void syscall_set_arguments(struct task_struct *task,
>  	memcpy(&regs->gpr[3 + i], args, n * sizeof(args[0]));
>  }
>  
> +static inline int syscall_get_arch(void)
> +{
> +	int arch = AUDIT_ARCH_PPC;
> +
> +#ifdef CONFIG_PPC64
> +	if (!is_32bit_task())
> +		arch = AUDIT_ARCH_PPC64;
> +#endif
> +	return arch;
> +}
>  #endif	/* _ASM_SYSCALL_H */
> diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h
> index 025a02a..fed3d51 100644
> --- a/arch/sparc/include/asm/syscall.h
> +++ b/arch/sparc/include/asm/syscall.h
> @@ -1,9 +1,11 @@
>  #ifndef __ASM_SPARC_SYSCALL_H
>  #define __ASM_SPARC_SYSCALL_H
>  
> +#include <uapi/linux/audit.h>
>  #include <linux/kernel.h>
>  #include <linux/sched.h>
>  #include <asm/ptrace.h>
> +#include <asm/thread_info.h>
>  
>  /*
>   * The syscall table always contains 32 bit pointers since we know that the
> @@ -124,4 +126,10 @@ static inline void syscall_set_arguments(struct task_struct *task,
>  		regs->u_regs[UREG_I0 + i + j] = args[j];
>  }
>  
> +static inline int syscall_get_arch(void)
> +{
> +	return test_thread_flag(TIF_32BIT) ? AUDIT_ARCH_SPARC
> +					   : AUDIT_ARCH_SPARC64;
> +}
> +
>  #endif /* __ASM_SPARC_SYSCALL_H */
> diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
> index 9af01d7..8496cfa 100644
> --- a/include/uapi/linux/audit.h
> +++ b/include/uapi/linux/audit.h
> @@ -343,6 +343,7 @@ enum {
>  #define AUDIT_ARCH_IA64		(EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
>  #define AUDIT_ARCH_M32R		(EM_M32R)
>  #define AUDIT_ARCH_M68K		(EM_68K)
> +#define AUDIT_ARCH_MICROBLAZE	(EM_MICROBLAZE)
>  #define AUDIT_ARCH_MIPS		(EM_MIPS)
>  #define AUDIT_ARCH_MIPSEL	(EM_MIPS|__AUDIT_ARCH_LE)
>  #define AUDIT_ARCH_MIPS64	(EM_MIPS|__AUDIT_ARCH_64BIT)
> -- 
> 1.8.5.3
> 
> --
> Linux-audit mailing list
> Linux-audit@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-audit

- RGB

--
Richard Guy Briggs <rbriggs@redhat.com>
Senior Software Engineer, Kernel Security, AMER ENG Base Operating Systems, Red Hat
Remote, Ottawa, Canada
Voice: +1.647.777.2635, Internal: (81) 32635, Alt: +1.613.693.0684x3545
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Subject: Re: [PATCH 4/4] ARCH: AUDIT: audit_syscall_entry() should not
 require the arch
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On 14/03/19, Eric Paris wrote:
> We have a function where the arch can be queried, syscall_get_arch().
> So rather than have every single piece of arch specific code use and/or
> duplicate syscall_get_arch(), just have the audit code use the
> syscall_get_arch() code.
> 
> Signed-off-by: Eric Paris <eparis@redhat.com>
> Cc: linux-alpha@vger.kernel.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-ia64@vger.kernel.org
> Cc: microblaze-uclinux@itee.uq.edu.au
> Cc: linux-mips@linux-mips.org
> Cc: linux@lists.openrisc.net
> Cc: linux-parisc@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: linux-s390@vger.kernel.org
> Cc: linux-sh@vger.kernel.org
> Cc: sparclinux@vger.kernel.org
> Cc: user-mode-linux-devel@lists.sourceforge.net
> Cc: linux-xtensa@linux-xtensa.org
> Cc: x86@kernel.org

Acked-by: Richard Guy Briggs <rgb@redhat.com>

> ---
>  arch/alpha/kernel/ptrace.c      |  2 +-
>  arch/arm/kernel/ptrace.c        |  4 ++--
>  arch/ia64/kernel/ptrace.c       |  2 +-
>  arch/microblaze/kernel/ptrace.c |  3 +--
>  arch/mips/kernel/ptrace.c       |  4 +---
>  arch/openrisc/kernel/ptrace.c   |  3 +--
>  arch/parisc/kernel/ptrace.c     |  9 +++------
>  arch/powerpc/kernel/ptrace.c    |  7 ++-----
>  arch/s390/kernel/ptrace.c       |  4 +---
>  arch/sh/kernel/ptrace_32.c      | 14 +-------------
>  arch/sh/kernel/ptrace_64.c      | 17 +----------------
>  arch/sparc/kernel/ptrace_64.c   |  9 ++-------
>  arch/um/kernel/ptrace.c         |  3 +--
>  arch/x86/kernel/ptrace.c        |  8 ++------
>  arch/x86/um/asm/ptrace.h        |  4 ----
>  arch/xtensa/kernel/ptrace.c     |  2 +-
>  include/linux/audit.h           |  7 ++++---
>  17 files changed, 25 insertions(+), 77 deletions(-)
> 
> diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
> index 86d8351..d9ee817 100644
> --- a/arch/alpha/kernel/ptrace.c
> +++ b/arch/alpha/kernel/ptrace.c
> @@ -321,7 +321,7 @@ asmlinkage unsigned long syscall_trace_enter(void)
>  	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
>  	    tracehook_report_syscall_entry(current_pt_regs()))
>  		ret = -1UL;
> -	audit_syscall_entry(AUDIT_ARCH_ALPHA, regs->r0, regs->r16, regs->r17, regs->r18, regs->r19);
> +	audit_syscall_entry(regs->r0, regs->r16, regs->r17, regs->r18, regs->r19);
>  	return ret ?: current_pt_regs()->r0;
>  }
>  
> diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
> index 0dd3b79..c9d2b34 100644
> --- a/arch/arm/kernel/ptrace.c
> +++ b/arch/arm/kernel/ptrace.c
> @@ -943,8 +943,8 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno)
>  	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
>  		trace_sys_enter(regs, scno);
>  
> -	audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0, regs->ARM_r1,
> -			    regs->ARM_r2, regs->ARM_r3);
> +	audit_syscall_entry(scno, regs->ARM_r0, regs->ARM_r1, regs->ARM_r2,
> +			    regs->ARM_r3);
>  
>  	return scno;
>  }
> diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
> index b7a5fff..6f54d51 100644
> --- a/arch/ia64/kernel/ptrace.c
> +++ b/arch/ia64/kernel/ptrace.c
> @@ -1219,7 +1219,7 @@ syscall_trace_enter (long arg0, long arg1, long arg2, long arg3,
>  		ia64_sync_krbs();
>  
>  
> -	audit_syscall_entry(AUDIT_ARCH_IA64, regs.r15, arg0, arg1, arg2, arg3);
> +	audit_syscall_entry(regs.r15, arg0, arg1, arg2, arg3);
>  
>  	return 0;
>  }
> diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
> index 39cf508..bb10637 100644
> --- a/arch/microblaze/kernel/ptrace.c
> +++ b/arch/microblaze/kernel/ptrace.c
> @@ -147,8 +147,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
>  		 */
>  		ret = -1L;
>  
> -	audit_syscall_entry(EM_MICROBLAZE, regs->r12, regs->r5, regs->r6,
> -			    regs->r7, regs->r8);
> +	audit_syscall_entry(regs->r12, regs->r5, regs->r6, regs->r7, regs->r8);
>  
>  	return ret ?: regs->r12;
>  }
> diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
> index 65ba622..c06bb82 100644
> --- a/arch/mips/kernel/ptrace.c
> +++ b/arch/mips/kernel/ptrace.c
> @@ -671,9 +671,7 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
>  	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
>  		trace_sys_enter(regs, regs->regs[2]);
>  
> -	audit_syscall_entry(syscall_get_arch(),
> -			    regs->regs[2],
> -			    regs->regs[4], regs->regs[5],
> +	audit_syscall_entry(regs->regs[2], regs->regs[4], regs->regs[5],
>  			    regs->regs[6], regs->regs[7]);
>  }
>  
> diff --git a/arch/openrisc/kernel/ptrace.c b/arch/openrisc/kernel/ptrace.c
> index 71a2a0c..4f59fa4 100644
> --- a/arch/openrisc/kernel/ptrace.c
> +++ b/arch/openrisc/kernel/ptrace.c
> @@ -187,8 +187,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
>  		 */
>  		ret = -1L;
>  
> -	audit_syscall_entry(AUDIT_ARCH_OPENRISC, regs->gpr[11],
> -			    regs->gpr[3], regs->gpr[4],
> +	audit_syscall_entry(regs->gpr[11], regs->gpr[3], regs->gpr[4],
>  			    regs->gpr[5], regs->gpr[6]);
>  
>  	return ret ? : regs->gpr[11];
> diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
> index e842ee2..7481457 100644
> --- a/arch/parisc/kernel/ptrace.c
> +++ b/arch/parisc/kernel/ptrace.c
> @@ -276,14 +276,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
>  
>  #ifdef CONFIG_64BIT
>  	if (!is_compat_task())
> -		audit_syscall_entry(AUDIT_ARCH_PARISC64,
> -			regs->gr[20],
> -			regs->gr[26], regs->gr[25],
> -			regs->gr[24], regs->gr[23]);
> +		audit_syscall_entry(regs->gr[20], regs->gr[26], regs->gr[25],
> +				    regs->gr[24], regs->gr[23]);
>  	else
>  #endif
> -		audit_syscall_entry(AUDIT_ARCH_PARISC,
> -			regs->gr[20] & 0xffffffff,
> +		audit_syscall_entry(regs->gr[20] & 0xffffffff,
>  			regs->gr[26] & 0xffffffff,
>  			regs->gr[25] & 0xffffffff,
>  			regs->gr[24] & 0xffffffff,
> diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
> index 2e3d2bf..524a943 100644
> --- a/arch/powerpc/kernel/ptrace.c
> +++ b/arch/powerpc/kernel/ptrace.c
> @@ -1788,14 +1788,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
>  
>  #ifdef CONFIG_PPC64
>  	if (!is_32bit_task())
> -		audit_syscall_entry(AUDIT_ARCH_PPC64,
> -				    regs->gpr[0],
> -				    regs->gpr[3], regs->gpr[4],
> +		audit_syscall_entry(regs->gpr[0], regs->gpr[3], regs->gpr[4],
>  				    regs->gpr[5], regs->gpr[6]);
>  	else
>  #endif
> -		audit_syscall_entry(AUDIT_ARCH_PPC,
> -				    regs->gpr[0],
> +		audit_syscall_entry(regs->gpr[0],
>  				    regs->gpr[3] & 0xffffffff,
>  				    regs->gpr[4] & 0xffffffff,
>  				    regs->gpr[5] & 0xffffffff,
> diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
> index e65c91c..2e2e7bb5 100644
> --- a/arch/s390/kernel/ptrace.c
> +++ b/arch/s390/kernel/ptrace.c
> @@ -812,9 +812,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
>  	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
>  		trace_sys_enter(regs, regs->gprs[2]);
>  
> -	audit_syscall_entry(is_compat_task() ?
> -				AUDIT_ARCH_S390 : AUDIT_ARCH_S390X,
> -			    regs->gprs[2], regs->orig_gpr2,
> +	audit_syscall_entry(regs->gprs[2], regs->orig_gpr2,
>  			    regs->gprs[3], regs->gprs[4],
>  			    regs->gprs[5]);
>  out:
> diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
> index 668c816..c1a6b89 100644
> --- a/arch/sh/kernel/ptrace_32.c
> +++ b/arch/sh/kernel/ptrace_32.c
> @@ -484,17 +484,6 @@ long arch_ptrace(struct task_struct *child, long request,
>  	return ret;
>  }
>  
> -static inline int audit_arch(void)
> -{
> -	int arch = EM_SH;
> -
> -#ifdef CONFIG_CPU_LITTLE_ENDIAN
> -	arch |= __AUDIT_ARCH_LE;
> -#endif
> -
> -	return arch;
> -}
> -
>  asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
>  {
>  	long ret = 0;
> @@ -513,8 +502,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
>  	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
>  		trace_sys_enter(regs, regs->regs[0]);
>  
> -	audit_syscall_entry(audit_arch(), regs->regs[3],
> -			    regs->regs[4], regs->regs[5],
> +	audit_syscall_entry(regs->regs[3], regs->regs[4], regs->regs[5],
>  			    regs->regs[6], regs->regs[7]);
>  
>  	return ret ?: regs->regs[0];
> diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
> index af90339..5cea973 100644
> --- a/arch/sh/kernel/ptrace_64.c
> +++ b/arch/sh/kernel/ptrace_64.c
> @@ -504,20 +504,6 @@ asmlinkage int sh64_ptrace(long request, long pid,
>  	return sys_ptrace(request, pid, addr, data);
>  }
>  
> -static inline int audit_arch(void)
> -{
> -	int arch = EM_SH;
> -
> -#ifdef CONFIG_64BIT
> -	arch |= __AUDIT_ARCH_64BIT;
> -#endif
> -#ifdef CONFIG_CPU_LITTLE_ENDIAN
> -	arch |= __AUDIT_ARCH_LE;
> -#endif
> -
> -	return arch;
> -}
> -
>  asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs)
>  {
>  	long long ret = 0;
> @@ -536,8 +522,7 @@ asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs)
>  	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
>  		trace_sys_enter(regs, regs->regs[9]);
>  
> -	audit_syscall_entry(audit_arch(), regs->regs[1],
> -			    regs->regs[2], regs->regs[3],
> +	audit_syscall_entry(regs->regs[1], regs->regs[2], regs->regs[3],
>  			    regs->regs[4], regs->regs[5]);
>  
>  	return ret ?: regs->regs[9];
> diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
> index c13c9f2..9ddc492 100644
> --- a/arch/sparc/kernel/ptrace_64.c
> +++ b/arch/sparc/kernel/ptrace_64.c
> @@ -1076,13 +1076,8 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
>  	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
>  		trace_sys_enter(regs, regs->u_regs[UREG_G1]);
>  
> -	audit_syscall_entry((test_thread_flag(TIF_32BIT) ?
> -			     AUDIT_ARCH_SPARC :
> -			     AUDIT_ARCH_SPARC64),
> -			    regs->u_regs[UREG_G1],
> -			    regs->u_regs[UREG_I0],
> -			    regs->u_regs[UREG_I1],
> -			    regs->u_regs[UREG_I2],
> +	audit_syscall_entry(regs->u_regs[UREG_G1], regs->u_regs[UREG_I0],
> +			    regs->u_regs[UREG_I1], regs->u_regs[UREG_I2],
>  			    regs->u_regs[UREG_I3]);
>  
>  	return ret;
> diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
> index 694d551..62435ef 100644
> --- a/arch/um/kernel/ptrace.c
> +++ b/arch/um/kernel/ptrace.c
> @@ -165,8 +165,7 @@ static void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs,
>   */
>  void syscall_trace_enter(struct pt_regs *regs)
>  {
> -	audit_syscall_entry(HOST_AUDIT_ARCH,
> -			    UPT_SYSCALL_NR(&regs->regs),
> +	audit_syscall_entry(UPT_SYSCALL_NR(&regs->regs),
>  			    UPT_SYSCALL_ARG1(&regs->regs),
>  			    UPT_SYSCALL_ARG2(&regs->regs),
>  			    UPT_SYSCALL_ARG3(&regs->regs),
> diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
> index 7461f50..46dfba6 100644
> --- a/arch/x86/kernel/ptrace.c
> +++ b/arch/x86/kernel/ptrace.c
> @@ -1488,15 +1488,11 @@ long syscall_trace_enter(struct pt_regs *regs)
>  		trace_sys_enter(regs, regs->orig_ax);
>  
>  	if (IS_IA32)
> -		audit_syscall_entry(AUDIT_ARCH_I386,
> -				    regs->orig_ax,
> -				    regs->bx, regs->cx,
> +		audit_syscall_entry(regs->orig_ax, regs->bx, regs->cx,
>  				    regs->dx, regs->si);
>  #ifdef CONFIG_X86_64
>  	else
> -		audit_syscall_entry(AUDIT_ARCH_X86_64,
> -				    regs->orig_ax,
> -				    regs->di, regs->si,
> +		audit_syscall_entry(regs->orig_ax, regs->di, regs->si,
>  				    regs->dx, regs->r10);
>  #endif
>  
> diff --git a/arch/x86/um/asm/ptrace.h b/arch/x86/um/asm/ptrace.h
> index 54f8102..e59eef2 100644
> --- a/arch/x86/um/asm/ptrace.h
> +++ b/arch/x86/um/asm/ptrace.h
> @@ -47,8 +47,6 @@ struct user_desc;
>  
>  #ifdef CONFIG_X86_32
>  
> -#define HOST_AUDIT_ARCH AUDIT_ARCH_I386
> -
>  extern int ptrace_get_thread_area(struct task_struct *child, int idx,
>                                    struct user_desc __user *user_desc);
>  
> @@ -57,8 +55,6 @@ extern int ptrace_set_thread_area(struct task_struct *child, int idx,
>  
>  #else
>  
> -#define HOST_AUDIT_ARCH AUDIT_ARCH_X86_64
> -
>  #define PT_REGS_R8(r) UPT_R8(&(r)->regs)
>  #define PT_REGS_R9(r) UPT_R9(&(r)->regs)
>  #define PT_REGS_R10(r) UPT_R10(&(r)->regs)
> diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
> index 562fac6..4d54b48 100644
> --- a/arch/xtensa/kernel/ptrace.c
> +++ b/arch/xtensa/kernel/ptrace.c
> @@ -342,7 +342,7 @@ void do_syscall_trace_enter(struct pt_regs *regs)
>  		do_syscall_trace();
>  
>  #if 0
> -	audit_syscall_entry(current, AUDIT_ARCH_XTENSA..);
> +	audit_syscall_entry(...);
>  #endif
>  }
>  
> diff --git a/include/linux/audit.h b/include/linux/audit.h
> index 4b2983e..62c9d98 100644
> --- a/include/linux/audit.h
> +++ b/include/linux/audit.h
> @@ -26,6 +26,7 @@
>  #include <linux/sched.h>
>  #include <linux/ptrace.h>
>  #include <uapi/linux/audit.h>
> +#include <asm/syscall.h>
>  
>  struct audit_sig_info {
>  	uid_t		uid;
> @@ -135,12 +136,12 @@ static inline void audit_free(struct task_struct *task)
>  	if (unlikely(task->audit_context))
>  		__audit_free(task);
>  }
> -static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
> +static inline void audit_syscall_entry(int major, unsigned long a0,
>  				       unsigned long a1, unsigned long a2,
>  				       unsigned long a3)
>  {
>  	if (unlikely(current->audit_context))
> -		__audit_syscall_entry(arch, major, a0, a1, a2, a3);
> +		__audit_syscall_entry(syscall_get_arch(), major, a0, a1, a2, a3);
>  }
>  static inline void audit_syscall_exit(void *pt_regs)
>  {
> @@ -316,7 +317,7 @@ static inline int audit_alloc(struct task_struct *task)
>  }
>  static inline void audit_free(struct task_struct *task)
>  { }
> -static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
> +static inline void audit_syscall_entry(int major, unsigned long a0,
>  				       unsigned long a1, unsigned long a2,
>  				       unsigned long a3)
>  { }
> -- 
> 1.8.5.3
> 
> --
> Linux-audit mailing list
> Linux-audit@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-audit

- RGB

--
Richard Guy Briggs <rbriggs@redhat.com>
Senior Software Engineer, Kernel Security, AMER ENG Base Operating Systems, Red Hat
Remote, Ottawa, Canada
Voice: +1.647.777.2635, Internal: (81) 32635, Alt: +1.613.693.0684x3545



From - Thu Nov 08 21:10:15 2018
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From - Thu Nov 08 21:10:15 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: wire up sys_utimes
Date: Sun, 23 Mar 2014 15:24:40 +0100
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To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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We seem to be nearly the only platform which does not provide the
sys_utimes syscall.  Adding it now makes our life much easier with
userspace applications (like dietlibc and e2fsprogs) since we then
behave like all other platforms too and don't need extra patches which
are hard to get upstream anyway because we are not a mainstream
architecture.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 4270679..265ae51 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -828,13 +828,13 @@
 #define __NR_finit_module	(__NR_Linux + 333)
 #define __NR_sched_setattr	(__NR_Linux + 334)
 #define __NR_sched_getattr	(__NR_Linux + 335)
+#define __NR_utimes		(__NR_Linux + 336)
 
-#define __NR_Linux_syscalls	(__NR_sched_getattr + 1)
+#define __NR_Linux_syscalls	(__NR_utimes + 1)
 
 
 #define __IGNORE_select		/* newselect */
 #define __IGNORE_fadvise64	/* fadvise64_64 */
-#define __IGNORE_utimes		/* utime */
 
 
 #define HPUX_GATEWAY_ADDR       0xC0000004
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 8fa3fbb..80e5dd2 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -431,6 +431,7 @@
 	ENTRY_SAME(finit_module)
 	ENTRY_SAME(sched_setattr)
 	ENTRY_SAME(sched_getattr)	/* 335 */
+	ENTRY_COMP(utimes)
 
 	/* Nothing yet */
 
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From - Thu Nov 08 21:10:15 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc updates for v3.14
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi Linus,

please consider pulling some late patches for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.14

This patchset 
- reverts parts of my latest patch regarding font selection with STICON console,
- wires up the utimes() syscall for parisc, and
- removes the unused parisc tmpalias code and unnecessary arch*relax defines

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (2):
      partly revert commit 8a10bc9: parisc/sti_console: prefer Linux fonts over built-in ROM fonts
      parisc: wire up sys_utimes

John David Anglin (1):
      parisc: Remove unused CONFIG_PARISC_TMPALIAS code

Will Deacon (1):
      parisc: locks: remove redundant arch_*_relax operations

 arch/parisc/include/asm/page.h        | 11 ------
 arch/parisc/include/asm/spinlock.h    |  4 ---
 arch/parisc/include/uapi/asm/unistd.h |  4 +--
 arch/parisc/kernel/cache.c            | 64 -----------------------------------
 arch/parisc/kernel/syscall_table.S    |  1 +
 lib/fonts/Kconfig                     |  6 ++--
 6 files changed, 6 insertions(+), 84 deletions(-)
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From - Thu Nov 08 21:10:15 2018
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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Cc: Mike Frysinger <vapier@gentoo.org>,
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To: Helge Deller <deller@gmx.de>
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Hi,

On Sun, Mar 02, 2014 at 10:22:54PM +0100, Helge Deller wrote:
> On 12/19/2013 10:19 PM, Mike Frysinger wrote:
> > On Thursday 19 December 2013 14:44:40 John David Anglin wrote:
> >> On 12/19/2013 2:17 PM, Aaro Koskinen wrote:
> >>> This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
> >>> mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
> >>>
> >>> $ localedef -c -i en_US -f UTF-8 en_US.UTF-8
> >>> cannot map archive header: Invalid argument
> >>>
> >>> strace looks like this:
> >>>
> >>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42f34000
> >>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3,
> >>> 0) = -1 EINVAL (Invalid argument)
> >>>
> >>> With the patch reverted, it works:
> >>>
> >>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42d74000
> >>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3,
> >>> 0) = 0x43000000
> >>>
> >>> BTW, note that for GLIBC 2.18 some changes were done regarding this:
> >>> https://sourceware.org/bugzilla/show_bug.cgi?id=10283
> >>
> >> Are you sure the glibc changes are correct?  PARISC addresses are not
> >> strictly aligned to SHMLBA.
> >> There's also a page offset and "random" offset derived from the kernel
> >> address of the mapping struct.
> > 
> > the glibc changes were to use SHMLBA as the min alignment where as before it 
> > was using PAGE_SIZE.  the kernel shouldn't reject us because we manually 
> > increased our alignment ... the mappings should still be overlapping, so it 
> > shouldn't be an "out of mapping space" issue.
> > 
> > the first one gets a really large map (not fixed), and then the second does a 
> > small mapping inside of that first one.
> 
> This doesn't work for parisc.
> We currently face this issue again now with eglibc on debian since we updated
> it.

FWIW, this bug is still present with mainline Linux 3.14 + GLIBC 2.19.

A.
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From: Helge Deller <deller@gmx.de>
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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Cc: Mike Frysinger <vapier@gentoo.org>,
	John David Anglin <dave.anglin@bell.net>,
	linux-parisc@vger.kernel.org
To: Aaro Koskinen <aaro.koskinen@iki.fi>
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On 04/01/2014 08:26 PM, Aaro Koskinen wrote:
> Hi,
> 
> On Sun, Mar 02, 2014 at 10:22:54PM +0100, Helge Deller wrote:
>> On 12/19/2013 10:19 PM, Mike Frysinger wrote:
>>> On Thursday 19 December 2013 14:44:40 John David Anglin wrote:
>>>> On 12/19/2013 2:17 PM, Aaro Koskinen wrote:
>>>>> This commit (0576da2c08e3d332f1b0653030d28ab804585ab6) and the current
>>>>> mainline kernel (3.13-rc4) gives me the following with GLIBC 2.18:
>>>>>
>>>>> $ localedef -c -i en_US -f UTF-8 en_US.UTF-8
>>>>> cannot map archive header: Invalid argument
>>>>>
>>>>> strace looks like this:
>>>>>
>>>>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42f34000
>>>>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3,
>>>>> 0) = -1 EINVAL (Invalid argument)
>>>>>
>>>>> With the patch reverted, it works:
>>>>>
>>>>> mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42d74000
>>>>> mmap2(0x43000000, 1607632, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3,
>>>>> 0) = 0x43000000
>>>>>
>>>>> BTW, note that for GLIBC 2.18 some changes were done regarding this:
>>>>> https://sourceware.org/bugzilla/show_bug.cgi?id=10283
>>>>
>>>> Are you sure the glibc changes are correct?  PARISC addresses are not
>>>> strictly aligned to SHMLBA.
>>>> There's also a page offset and "random" offset derived from the kernel
>>>> address of the mapping struct.
>>>
>>> the glibc changes were to use SHMLBA as the min alignment where as before it 
>>> was using PAGE_SIZE.  the kernel shouldn't reject us because we manually 
>>> increased our alignment ... the mappings should still be overlapping, so it 
>>> shouldn't be an "out of mapping space" issue.
>>>
>>> the first one gets a really large map (not fixed), and then the second does a 
>>> small mapping inside of that first one.
>>
>> This doesn't work for parisc.
>> We currently face this issue again now with eglibc on debian since we updated
>> it.
> 
> FWIW, this bug is still present with mainline Linux 3.14 + GLIBC 2.19.

Yes.
But it's not a kernel bug. Kernel 3.14 and previous stable releases are OK.

I did proposed a glibc change in my previous mail (http://www.spinics.net/lists/linux-parisc/msg05384.html).
Debian bug report with patch is here:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741243

And this is what I proposed:

A trivial FIX/workaround would be to change libc-mmap.h like this:
#ifdef __hppa__
#define MAP_FIXED_ALIGNMENT 4096
#else
#define MAP_FIXED_ALIGNMENT SHMLBA
#endif

That works because then the new aligned address is then the same as the original
(the mmap call returns 4k aligned addresses, so it stays unchanged), but I'm not sure
if such a patch would be acceptable.
Do you have another idea/proposal?

Helge
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From - Thu Nov 08 21:10:16 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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Cc: Aaro Koskinen <aaro.koskinen@iki.fi>,
	Mike Frysinger <vapier@gentoo.org>,
	linux-parisc <linux-parisc@vger.kernel.org>
To: Helge Deller <deller@gmx.de>,
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On 4/2/2014 5:09 PM, Helge Deller wrote:
> On 04/02/2014 09:09 PM, Carlos O'Donell wrote:
>> On Tue, Apr 1, 2014 at 2:49 PM, Helge Deller <deller@gmx.de> wrote:
>>> Yes.
>>> But it's not a kernel bug. Kernel 3.14 and previous stable releases are OK.
>>>
>>> I did proposed a glibc change in my previous mail (http://www.spinics.net/lists/linux-parisc/msg05384.html).
>>> Debian bug report with patch is here:
>>> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741243
>>>
>>> And this is what I proposed:
>>>
>>> A trivial FIX/workaround would be to change libc-mmap.h like this:
>>> #ifdef __hppa__
>>> #define MAP_FIXED_ALIGNMENT 4096
>>> #else
>>> #define MAP_FIXED_ALIGNMENT SHMLBA
>>> #endif
>>>
>>> That works because then the new aligned address is then the same as the original
>>> (the mmap call returns 4k aligned addresses, so it stays unchanged), but I'm not sure
>>> if such a patch would be acceptable.
>>> Do you have another idea/proposal?
>> The responsibility for fixing this falls to me, but I've been busy.
> No problem.
>
>> If someone wants to propose a patch for glibc please email
>> libc-alpha@sourceware.org, TO me, and I'll review and commit the patch
>> granted that you show you've done the appropriate testing.
>>
>> Otherwise I'll get to this at some point in the next couple of weeks :-(
> Hi Carlos,
>
> I'm not really sure if my patch is the best way to go. Technically it's correct
> and it's tested since all our debian buildservers currently run with this patch.
> But all other options would probably involve more code changes.
>
> So, I think I'm happy if you can look at it at some point when you find time.
> Your input would be very valuable here.
I'm wondering if kernel value for SHMLBA shouldn't change to PAGE_SIZE 
to better
reflect that attach addresses are page aligned.  The color alignment for 
shared maps
seems a separate issue which maybe userspace doesn't need to worry about.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:10:16 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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To: Carlos O'Donell <carlos@systemhalted.org>
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On 04/02/2014 09:09 PM, Carlos O'Donell wrote:
> On Tue, Apr 1, 2014 at 2:49 PM, Helge Deller <deller@gmx.de> wrote:
>> Yes.
>> But it's not a kernel bug. Kernel 3.14 and previous stable releases are OK.
>>
>> I did proposed a glibc change in my previous mail (http://www.spinics.net/lists/linux-parisc/msg05384.html).
>> Debian bug report with patch is here:
>> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741243
>>
>> And this is what I proposed:
>>
>> A trivial FIX/workaround would be to change libc-mmap.h like this:
>> #ifdef __hppa__
>> #define MAP_FIXED_ALIGNMENT 4096
>> #else
>> #define MAP_FIXED_ALIGNMENT SHMLBA
>> #endif
>>
>> That works because then the new aligned address is then the same as the original
>> (the mmap call returns 4k aligned addresses, so it stays unchanged), but I'm not sure
>> if such a patch would be acceptable.
>> Do you have another idea/proposal?
> 
> The responsibility for fixing this falls to me, but I've been busy.

No problem.

> If someone wants to propose a patch for glibc please email
> libc-alpha@sourceware.org, TO me, and I'll review and commit the patch
> granted that you show you've done the appropriate testing.
> 
> Otherwise I'll get to this at some point in the next couple of weeks :-(

Hi Carlos,

I'm not really sure if my patch is the best way to go. Technically it's correct
and it's tested since all our debian buildservers currently run with this patch.
But all other options would probably involve more code changes.

So, I think I'm happy if you can look at it at some point when you find time.
Your input would be very valuable here.

Helge
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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On Tue, Apr 1, 2014 at 2:49 PM, Helge Deller <deller@gmx.de> wrote:
> Yes.
> But it's not a kernel bug. Kernel 3.14 and previous stable releases are OK.
>
> I did proposed a glibc change in my previous mail (http://www.spinics.net/lists/linux-parisc/msg05384.html).
> Debian bug report with patch is here:
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741243
>
> And this is what I proposed:
>
> A trivial FIX/workaround would be to change libc-mmap.h like this:
> #ifdef __hppa__
> #define MAP_FIXED_ALIGNMENT 4096
> #else
> #define MAP_FIXED_ALIGNMENT SHMLBA
> #endif
>
> That works because then the new aligned address is then the same as the original
> (the mmap call returns 4k aligned addresses, so it stays unchanged), but I'm not sure
> if such a patch would be acceptable.
> Do you have another idea/proposal?

The responsibility for fixing this falls to me, but I've been busy.

If someone wants to propose a patch for glibc please email
libc-alpha@sourceware.org, TO me, and I'll review and commit the patch
granted that you show you've done the appropriate testing.

Otherwise I'll get to this at some point in the next couple of weeks :-(

Cheers,
Carlos.
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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Cc: Aaro Koskinen <aaro.koskinen@iki.fi>,
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To: John David Anglin <dave.anglin@bell.net>,
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This is a multi-part message in MIME format.
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On 04/02/2014 11:41 PM, John David Anglin wrote:
> On 4/2/2014 5:09 PM, Helge Deller wrote:
>> On 04/02/2014 09:09 PM, Carlos O'Donell wrote:
>>> On Tue, Apr 1, 2014 at 2:49 PM, Helge Deller <deller@gmx.de> wrote:
>>>> Yes.
>>>> But it's not a kernel bug. Kernel 3.14 and previous stable releases are OK.
>>>>
>>>> I did proposed a glibc change in my previous mail (http://www.spinics.net/lists/linux-parisc/msg05384.html).
>>>> Debian bug report with patch is here:
>>>> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741243
>>>>
>>>> And this is what I proposed:
>>>>
>>>> A trivial FIX/workaround would be to change libc-mmap.h like this:
>>>> #ifdef __hppa__
>>>> #define MAP_FIXED_ALIGNMENT 4096
>>>> #else
>>>> #define MAP_FIXED_ALIGNMENT SHMLBA
>>>> #endif
>>>>
>>>> That works because then the new aligned address is then the same as the original
>>>> (the mmap call returns 4k aligned addresses, so it stays unchanged), but I'm not sure
>>>> if such a patch would be acceptable.
>>>> Do you have another idea/proposal?
>>> The responsibility for fixing this falls to me, but I've been busy.
>> No problem.
>>
>>> If someone wants to propose a patch for glibc please email
>>> libc-alpha@sourceware.org, TO me, and I'll review and commit the patch
>>> granted that you show you've done the appropriate testing.
>>>
>>> Otherwise I'll get to this at some point in the next couple of weeks :-(
>> Hi Carlos,
>>
>> I'm not really sure if my patch is the best way to go. Technically it's correct
>> and it's tested since all our debian buildservers currently run with this patch.
>> But all other options would probably involve more code changes.
>>
>> So, I think I'm happy if you can look at it at some point when you find time.
>> Your input would be very valuable here.

> I'm wondering if kernel value for SHMLBA shouldn't change to PAGE_SIZE to better
> reflect that attach addresses are page aligned.  The color alignment for shared maps
> seems a separate issue which maybe userspace doesn't need to worry about.

I think this is a very interesting idea and it should be pretty simple!

The attached patch for eglibc should resolve it.
And the attached patch for kernel isn't necessary, but makes it clear that the colouring is important.
 
I did tested the kernel patch - and it seems to work without problems.

I'm not sure if this might introduce userspace compile problems though (although unlikely).

Helge


--------------030402020607000106090508
Content-Type: text/x-patch;
 name="kernel_SHMLBA.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="kernel_SHMLBA.patch"

diff --git a/arch/parisc/include/asm/shmparam.h b/arch/parisc/include/asm/shmparam.h
index 628ddc2..d749144 100644
--- a/arch/parisc/include/asm/shmparam.h
+++ b/arch/parisc/include/asm/shmparam.h
@@ -1,8 +1,7 @@
 #ifndef _ASMPARISC_SHMPARAM_H
 #define _ASMPARISC_SHMPARAM_H
 
-#define __ARCH_FORCE_SHMLBA 	1
-
-#define SHMLBA 0x00400000   /* attach addr needs to be 4 Mb aligned */
+#define SHMLBA	   PAGE_SIZE	/* attach addr a multiple of this */
+#define SHM_COLOUR 0x00400000	/* shared mappings coulouring */
 
 #endif /* _ASMPARISC_SHMPARAM_H */
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index a6ffc77..2ea77e7 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -323,7 +323,7 @@ void flush_dcache_page(struct page *page)
 		 * specifically accesses it, of course) */
 
 		flush_tlb_page(mpnt, addr);
-		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
+		if (old_addr == 0 || (old_addr & (SHM_COLOUR - 1)) != (addr & (SHM_COLOUR - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
 			if (old_addr)
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index b7cadc4..31ffa9b 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -45,7 +45,7 @@
 
 static int get_offset(unsigned int last_mmap)
 {
-	return (last_mmap & (SHMLBA-1)) >> PAGE_SHIFT;
+	return (last_mmap & (SHM_COLOUR-1)) >> PAGE_SHIFT;
 }
 
 static unsigned long shared_align_offset(unsigned int last_mmap,
@@ -57,8 +57,8 @@ static unsigned long shared_align_offset(unsigned int last_mmap,
 static inline unsigned long COLOR_ALIGN(unsigned long addr,
 			 unsigned int last_mmap, unsigned long pgoff)
 {
-	unsigned long base = (addr+SHMLBA-1) & ~(SHMLBA-1);
-	unsigned long off  = (SHMLBA-1) &
+	unsigned long base = (addr+SHM_COLOUR-1) & ~(SHM_COLOUR-1);
+	unsigned long off  = (SHM_COLOUR-1) &
 		(shared_align_offset(last_mmap, pgoff) << PAGE_SHIFT);
 
 	return base + off;
@@ -101,7 +101,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	if (flags & MAP_FIXED) {
 		if ((flags & MAP_SHARED) && last_mmap &&
 		    (addr - shared_align_offset(last_mmap, pgoff))
-				& (SHMLBA - 1))
+				& (SHM_COLOUR - 1))
 			return -EINVAL;
 		goto found_addr;
 	}
@@ -122,7 +122,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.length = len;
 	info.low_limit = mm->mmap_legacy_base;
 	info.high_limit = mmap_upper_limit();
-	info.align_mask = last_mmap ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+	info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
 	info.align_offset = shared_align_offset(last_mmap, pgoff);
 	addr = vm_unmapped_area(&info);
 
@@ -161,7 +161,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	if (flags & MAP_FIXED) {
 		if ((flags & MAP_SHARED) && last_mmap &&
 		    (addr - shared_align_offset(last_mmap, pgoff))
-			& (SHMLBA - 1))
+			& (SHM_COLOUR - 1))
 			return -EINVAL;
 		goto found_addr;
 	}
@@ -182,7 +182,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.length = len;
 	info.low_limit = PAGE_SIZE;
 	info.high_limit = mm->mmap_base;
-	info.align_mask = last_mmap ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+	info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
 	info.align_offset = shared_align_offset(last_mmap, pgoff);
 	addr = vm_unmapped_area(&info);
 	if (!(addr & ~PAGE_MASK))

--------------030402020607000106090508
Content-Type: text/x-patch;
 name="eglibc.shmlba.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="eglibc.shmlba.patch"

diff -up ./ports/sysdeps/unix/sysv/linux/hppa/bits/shm.h.org ./ports/sysdeps/unix/sysv/linux/hppa/bits/shm.h
--- ./ports/sysdeps/unix/sysv/linux/hppa/bits/shm.h.org	2014-04-03 13:20:43.644098000 -0600
+++ ./ports/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2014-04-03 13:22:15.840098000 -0600
@@ -36,7 +36,7 @@
 #define SHM_UNLOCK	12		/* unlock segment (root only) */
 
 /* Segment low boundary address multiple.  */
-#define SHMLBA 0x00400000		/* address needs to be 4 Mb aligned */
+#define SHMLBA		(__getpagesize ())
 
 /* Type to count number of attaches.  */
 typedef unsigned long int shmatt_t;

--------------030402020607000106090508--
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On 4/3/2014 3:41 PM, Helge Deller wrote:
> On 04/02/2014 11:41 PM, John David Anglin wrote:
>> On 4/2/2014 5:09 PM, Helge Deller wrote:
>>> On 04/02/2014 09:09 PM, Carlos O'Donell wrote:
>>>> On Tue, Apr 1, 2014 at 2:49 PM, Helge Deller <deller@gmx.de> wrote:
>>>>> Yes.
>>>>> But it's not a kernel bug. Kernel 3.14 and previous stable releases are OK.
>>>>>
>>>>> I did proposed a glibc change in my previous mail (http://www.spinics.net/lists/linux-parisc/msg05384.html).
>>>>> Debian bug report with patch is here:
>>>>> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741243
>>>>>
>>>>> And this is what I proposed:
>>>>>
>>>>> A trivial FIX/workaround would be to change libc-mmap.h like this:
>>>>> #ifdef __hppa__
>>>>> #define MAP_FIXED_ALIGNMENT 4096
>>>>> #else
>>>>> #define MAP_FIXED_ALIGNMENT SHMLBA
>>>>> #endif
>>>>>
>>>>> That works because then the new aligned address is then the same as the original
>>>>> (the mmap call returns 4k aligned addresses, so it stays unchanged), but I'm not sure
>>>>> if such a patch would be acceptable.
>>>>> Do you have another idea/proposal?
>>>> The responsibility for fixing this falls to me, but I've been busy.
>>> No problem.
>>>
>>>> If someone wants to propose a patch for glibc please email
>>>> libc-alpha@sourceware.org, TO me, and I'll review and commit the patch
>>>> granted that you show you've done the appropriate testing.
>>>>
>>>> Otherwise I'll get to this at some point in the next couple of weeks :-(
>>> Hi Carlos,
>>>
>>> I'm not really sure if my patch is the best way to go. Technically it's correct
>>> and it's tested since all our debian buildservers currently run with this patch.
>>> But all other options would probably involve more code changes.
>>>
>>> So, I think I'm happy if you can look at it at some point when you find time.
>>> Your input would be very valuable here.
>> I'm wondering if kernel value for SHMLBA shouldn't change to PAGE_SIZE to better
>> reflect that attach addresses are page aligned.  The color alignment for shared maps
>> seems a separate issue which maybe userspace doesn't need to worry about.
> I think this is a very interesting idea and it should be pretty simple!
>
> The attached patch for eglibc should resolve it.
> And the attached patch for kernel isn't necessary, but makes it clear that the colouring is important.
>   
> I did tested the kernel patch - and it seems to work without problems.
>
> I'm not sure if this might introduce userspace compile problems though (although unlikely).
Very nice!  In our current Debian eglibc build, SHMLBA is set to 4096.
So, it should work just fine with the kernel patch.  The buildds have 
been running for some time
and I'm not aware of any mmap issues aside from the pthread_create 
ENOMEM errors.

Do you think this helps the allocation of small maps (perl locale test bug)?

Dave

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On 4/3/2014 3:41 PM, Helge Deller wrote:
> And the attached patch for kernel isn't necessary, but makes it clear that the colouring is important.
Regarding the kernel patch, I see you have used the British/Canadian 
spelling
of "colour" :-)

I thinking changing SHMLBA does affect things in other parts of the kernel.
That's why I was uncertain whether it would work.

Dave

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On 04/03/2014 10:03 PM, John David Anglin wrote:
> On 4/3/2014 3:41 PM, Helge Deller wrote:
>> On 04/02/2014 11:41 PM, John David Anglin wrote:
>>> On 4/2/2014 5:09 PM, Helge Deller wrote:
>>>> On 04/02/2014 09:09 PM, Carlos O'Donell wrote:
>>>>> On Tue, Apr 1, 2014 at 2:49 PM, Helge Deller <deller@gmx.de> wrote:
>>>>>> Yes.
>>>>>> But it's not a kernel bug. Kernel 3.14 and previous stable releases are OK.
>>>>>>
>>>>>> I did proposed a glibc change in my previous mail (http://www.spinics.net/lists/linux-parisc/msg05384.html).
>>>>>> Debian bug report with patch is here:
>>>>>> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741243
>>>>>>
>>>>>> And this is what I proposed:
>>>>>>
>>>>>> A trivial FIX/workaround would be to change libc-mmap.h like this:
>>>>>> #ifdef __hppa__
>>>>>> #define MAP_FIXED_ALIGNMENT 4096
>>>>>> #else
>>>>>> #define MAP_FIXED_ALIGNMENT SHMLBA
>>>>>> #endif
>>>>>>
>>>>>> That works because then the new aligned address is then the same as the original
>>>>>> (the mmap call returns 4k aligned addresses, so it stays unchanged), but I'm not sure
>>>>>> if such a patch would be acceptable.
>>>>>> Do you have another idea/proposal?
>>>>> The responsibility for fixing this falls to me, but I've been busy.
>>>> No problem.
>>>>
>>>>> If someone wants to propose a patch for glibc please email
>>>>> libc-alpha@sourceware.org, TO me, and I'll review and commit the patch
>>>>> granted that you show you've done the appropriate testing.
>>>>>
>>>>> Otherwise I'll get to this at some point in the next couple of weeks :-(
>>>> Hi Carlos,
>>>>
>>>> I'm not really sure if my patch is the best way to go. Technically it's correct
>>>> and it's tested since all our debian buildservers currently run with this patch.
>>>> But all other options would probably involve more code changes.
>>>>
>>>> So, I think I'm happy if you can look at it at some point when you find time.
>>>> Your input would be very valuable here.
>>> I'm wondering if kernel value for SHMLBA shouldn't change to PAGE_SIZE to better
>>> reflect that attach addresses are page aligned.  The color alignment for shared maps
>>> seems a separate issue which maybe userspace doesn't need to worry about.
>> I think this is a very interesting idea and it should be pretty simple!
>>
>> The attached patch for eglibc should resolve it.
>> And the attached patch for kernel isn't necessary, but makes it clear that the colouring is important.
>>   I did tested the kernel patch - and it seems to work without problems.
>>
>> I'm not sure if this might introduce userspace compile problems though (although unlikely).

> Very nice!  In our current Debian eglibc build, SHMLBA is set to 4096.

*No*, it's not!
In current eglibc it's set to 0x00400000
That's what my eglibc-patch changes...
I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).

> So, it should work just fine with the kernel patch. 

No, the kernel patch isn't necessary. Only the glibc patch.

> The buildds have been running for some time
> and I'm not aware of any mmap issues aside from the pthread_create ENOMEM errors.

True - we need to find the cause.
I just suspected the arch_get_unmapped_area() kernel functions, but they seem correct.
 
> Do you think this helps the allocation of small maps (perl locale test bug)?

No. Only my other (unfinished) patches will resolve this.

Helge

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On 04/03/2014 10:12 PM, John David Anglin wrote:
> On 4/3/2014 3:41 PM, Helge Deller wrote:
>> And the attached patch for kernel isn't necessary, but makes it clear that the colouring is important.
> Regarding the kernel patch, I see you have used the British/Canadian spelling
> of "colour" :-)

Yeah - seems to be commonly used in similiar parts of the kernel for other arches.
If you have a better idea/naming, please let me know.
 
> I thinking changing SHMLBA does affect things in other parts of the kernel.
> That's why I was uncertain whether it would work.

I scanned it. It's used very little, and shouldn't affect us.

Helge

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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped
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On Thu, 3 Apr 2014 16:12:03 -0400
John David Anglin <dave.anglin@bell.net> wrote:

> On 4/3/2014 3:41 PM, Helge Deller wrote:
> Regarding the kernel patch, I see you have used the British/Canadian 
> spelling of "colour" :-)

Also:

+#define SHM_COLOUR 0x00400000	/* shared mappings coulouring */

coulouring => colouring


     jer
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From - Thu Nov 08 21:10:16 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: change value of SHMLBA from 0x00400000 to PAGE_SIZE
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On parisc, SHMLBA was defined to 0x00400000 (4MB) to reflect that we need to
take care of our caches for shared mappings. But actually, we can map a file at
any multiple address of PAGE_SIZE, so let us correct that now with a value of
PAGE_SIZE for SHMLBA.  Instead we now take care of this cache colouring via the
constant SHM_COLOUR while we map shared pages.

Signed-off-by: Helge Deller <deller@gmx.de>
CC: Jeroen Roovers <jer@gentoo.org>
CC: John David Anglin <dave.anglin@bell.net>
CC: Carlos O'Donell <carlos@systemhalted.org>
Cc: stable@kernel.org [3.13+]

diff --git a/arch/parisc/include/asm/shmparam.h b/arch/parisc/include/asm/shmparam.h
index 628ddc2..afe1300 100644
--- a/arch/parisc/include/asm/shmparam.h
+++ b/arch/parisc/include/asm/shmparam.h
@@ -1,8 +1,7 @@
 #ifndef _ASMPARISC_SHMPARAM_H
 #define _ASMPARISC_SHMPARAM_H
 
-#define __ARCH_FORCE_SHMLBA 	1
-
-#define SHMLBA 0x00400000   /* attach addr needs to be 4 Mb aligned */
+#define SHMLBA	   PAGE_SIZE	/* attach addr a multiple of this */
+#define SHM_COLOUR 0x00400000	/* shared mappings colouring */
 
 #endif /* _ASMPARISC_SHMPARAM_H */
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index a6ffc77..f6448c7 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -323,7 +323,8 @@ void flush_dcache_page(struct page *page)
 		 * specifically accesses it, of course) */
 
 		flush_tlb_page(mpnt, addr);
-		if (old_addr == 0 || (old_addr & (SHMLBA - 1)) != (addr & (SHMLBA - 1))) {
+		if (old_addr == 0 || (old_addr & (SHM_COLOUR - 1))
+				      != (addr & (SHM_COLOUR - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
 			if (old_addr)
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index b7cadc4..31ffa9b 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -45,7 +45,7 @@
 
 static int get_offset(unsigned int last_mmap)
 {
-	return (last_mmap & (SHMLBA-1)) >> PAGE_SHIFT;
+	return (last_mmap & (SHM_COLOUR-1)) >> PAGE_SHIFT;
 }
 
 static unsigned long shared_align_offset(unsigned int last_mmap,
@@ -57,8 +57,8 @@ static unsigned long shared_align_offset(unsigned int last_mmap,
 static inline unsigned long COLOR_ALIGN(unsigned long addr,
 			 unsigned int last_mmap, unsigned long pgoff)
 {
-	unsigned long base = (addr+SHMLBA-1) & ~(SHMLBA-1);
-	unsigned long off  = (SHMLBA-1) &
+	unsigned long base = (addr+SHM_COLOUR-1) & ~(SHM_COLOUR-1);
+	unsigned long off  = (SHM_COLOUR-1) &
 		(shared_align_offset(last_mmap, pgoff) << PAGE_SHIFT);
 
 	return base + off;
@@ -101,7 +101,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	if (flags & MAP_FIXED) {
 		if ((flags & MAP_SHARED) && last_mmap &&
 		    (addr - shared_align_offset(last_mmap, pgoff))
-				& (SHMLBA - 1))
+				& (SHM_COLOUR - 1))
 			return -EINVAL;
 		goto found_addr;
 	}
@@ -122,7 +122,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.length = len;
 	info.low_limit = mm->mmap_legacy_base;
 	info.high_limit = mmap_upper_limit();
-	info.align_mask = last_mmap ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+	info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
 	info.align_offset = shared_align_offset(last_mmap, pgoff);
 	addr = vm_unmapped_area(&info);
 
@@ -161,7 +161,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	if (flags & MAP_FIXED) {
 		if ((flags & MAP_SHARED) && last_mmap &&
 		    (addr - shared_align_offset(last_mmap, pgoff))
-			& (SHMLBA - 1))
+			& (SHM_COLOUR - 1))
 			return -EINVAL;
 		goto found_addr;
 	}
@@ -182,7 +182,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.length = len;
 	info.low_limit = PAGE_SIZE;
 	info.high_limit = mm->mmap_base;
-	info.align_mask = last_mmap ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+	info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
 	info.align_offset = shared_align_offset(last_mmap, pgoff);
 	addr = vm_unmapped_area(&info);
 	if (!(addr & ~PAGE_MASK))
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Signed-off-by: Helge Deller <deller@gmx.de>
CC: stable@kernel.org

diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 80e5dd2..83ead0e 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -392,7 +392,7 @@
 	ENTRY_COMP(vmsplice)
 	ENTRY_COMP(move_pages)		/* 295 */
 	ENTRY_SAME(getcpu)
-	ENTRY_SAME(epoll_pwait)
+	ENTRY_COMP(epoll_pwait)
 	ENTRY_COMP(statfs64)
 	ENTRY_COMP(fstatfs64)
 	ENTRY_COMP(kexec_load)		/* 300 */
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This is a work-in-progress patch to avoid unneccesary saving of floating
point regs when entering syscalls (it still generates segfaults...!).
The compiler option -mdisable-fpregs takes care that we don't use fp
regs in kernel code by accident.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index e8f07dd..810769b 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -785,9 +785,13 @@ ENDPROC(ret_from_kernel_thread)
 ENTRY(_switch_to)
 	STREG	 %r2, -RP_OFFSET(%r30)
 
-	callee_save_float
 	callee_save
 
+	/* TODO: we could check TASK_FLAGS and only save the fpregs when
+	 * switching away from a userspace task. */
+	ldo	TASK_PT_FR0(%r26), %r1	/* save fpregs for task switch */
+	save_fp	%r1
+
 	load32	_switch_to_ret, %r2
 
 	STREG	%r2, TASK_PT_KPC(%r26)
@@ -795,6 +799,12 @@ ENTRY(_switch_to)
 
 	STREG	%r30, TASK_PT_KSP(%r26)
 	LDREG	TASK_PT_KSP(%r25), %r30
+
+	/* TODO: we could check TASK_FLAGS and restore the fpregs only when
+	 * we return to a userspace task. */
+	ldo	TASK_PT_FR31(%r25),%r1	/* reload fpregs */
+	rest_fp	%r1
+
 	LDREG	TASK_THREAD_INFO(%r25), %r25
 	bv	%r0(%r2)
 	mtctl   %r25,%cr30
@@ -802,7 +812,6 @@ ENTRY(_switch_to)
 _switch_to_ret:
 	mtctl	%r0, %cr0		/* Needed for single stepping */
 	callee_rest
-	callee_rest_float
 
 	LDREG	-RP_OFFSET(%r30), %r2
 	bv	%r0(%r2)
@@ -913,8 +922,6 @@ intr_check_sig:
 
 intr_restore:
 	copy            %r16,%r29
-	ldo             PT_FR31(%r29),%r1
-	rest_fp         %r1
 	rest_general    %r29
 
 	/* inverse of virt_map */
@@ -1013,9 +1020,6 @@ intr_extint:
 	virt_map
 	save_general	%r29
 
-	ldo	PT_FR0(%r29), %r24
-	save_fp	%r24
-	
 	loadgp
 
 	copy	%r29, %r26	/* arg0 is pt_regs */
@@ -1094,9 +1098,6 @@ skip_save_ior:
 	virt_map
 	save_general	%r29
 
-	ldo		PT_FR0(%r29), %r25
-	save_fp		%r25
-	
 	loadgp
 
 	copy		%r29, %r25	/* arg1 is pt_regs */
@@ -1856,9 +1857,6 @@ syscall_restore:
 	and,COND(=)	%r19,%r2,%r0
 	b,n	syscall_restore_rfi
 
-	ldo	TASK_PT_FR31(%r1),%r19		   /* reload fpregs */
-	rest_fp	%r19
-
 	LDREG	TASK_PT_SAR(%r1),%r19		   /* restore SAR */
 	mtsar	%r19
 
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index a63bb179..89163e7 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -184,9 +184,6 @@ linux_gateway_entry:
 	STREG	%r29, TASK_PT_GR29(%r1)		/* return value 1 */
 	STREG	%r31, TASK_PT_GR31(%r1)		/* preserve syscall return ptr */
 	
-	ldo	TASK_PT_FR0(%r1), %r27		/* save fpregs from the kernel */
-	save_fp	%r27				/* or potential task switch  */

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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc updates for v3.15
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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Hi Linus,

please pull the latest parisc architecture fixes from: 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.15

There are two major changes in this patchset:
The major fix is that the epoll_pwait() syscall for 32bit userspace was not
using the compat wrapper on a 64bit kernel.
Secondly we changed the value of SHMLBA from 4MB to PAGE_SIZE to reflect
that we can actually mmap to any multiple of PAGE_SIZE. The only thing
which needs care is that shared mmaps need to be mapped at the same
offset inside the 4MB cache window.

Thanks,
Helge

----------------------------------------------------------------
Christoph Lameter (1):
      parisc: Replace __get_cpu_var uses for address calculation

Helge Deller (2):
      parisc: change value of SHMLBA from 0x00400000 to PAGE_SIZE
      parisc: fix epoll_pwait syscall on compat kernel

 arch/parisc/include/asm/shmparam.h |  5 ++---
 arch/parisc/kernel/cache.c         |  3 ++-
 arch/parisc/kernel/sys_parisc.c    | 14 +++++++-------
 arch/parisc/kernel/syscall_table.S |  2 +-
 arch/parisc/lib/memcpy.c           |  2 +-
 arch/parisc/mm/fault.c             |  2 +-
 6 files changed, 14 insertions(+), 14 deletions(-)
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From - Thu Nov 08 21:10:17 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [RFC,PATCH] mm,parisc: keep track of last mmap'ed address
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Would the following patch be acceptable?
It adds an additional field to struct address_space which will most likely only
be used by the parisc arch.

If it's acceptable, I would like to push it through the parisc tree, if not,
I'm of course open to other ideas too.

Thanks,
Helge

PATCH:
[RFC,PATCH] mm,parisc: keep track of last mmap'ed address

Because of parisc's cache aliasing constraints we need to map shared pages at a
multiple of 4MB while most other architectures can map files at any multiple of
PAGE_SIZE. In the past this constraint was ensured by calculating a virtual
offset into this 4MB region which is based on the physical address of the
kernel mapping variable (right-shift value of filp->f_mapping by 8 bits).
Since we only have a 32bit userspace (even when running on a 64bit kernel) this
often leads to large gaps in the maps of the userspace processes and to out of
memory situations even if physical memory was still free.  Of course I did
played with other variants of shifting the f_mapping value to find better
offsets but this didn't helped either.

This patch chooses a different approach.
It adds the additional field i_mmap_lastmmap to the address_space struct to
keep track of the last mapping of a shared file. With this bookkeeping it's
possible for the parisc memory allocator to 
a) choose a new mapping offset if the file hasn't been mapped yet, and
b) take the last-used mapping if it was already mapped by another process.

Overall this approach leads to a more condensed memory usage on parisc because
the shared files will now be mapped much closer to each other. This is e.g.
visible with shared libraries which are now not any longer cluttered around
in the userspace process but close to each other at the top of the userspace
memory.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 81048f9..f757a5c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -416,6 +416,9 @@ struct address_space {
 	unsigned int		i_mmap_writable;/* count VM_SHARED mappings */
 	struct rb_root		i_mmap;		/* tree of private and shared mappings */
 	struct list_head	i_mmap_nonlinear;/*list VM_NONLINEAR mappings */
+#ifdef CONFIG_MMAP_TRACKING
+	unsigned long		i_mmap_lastmmap; /* address of last mmap */
+#endif
 	struct mutex		i_mmap_mutex;	/* protect tree, count, list */
 	/* Protected by tree_lock together with the radix tree */
 	unsigned long		nrpages;	/* number of total pages */
diff --git a/mm/mmap.c b/mm/mmap.c
index b1202cf..e2659c3 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -212,8 +212,13 @@ static void __remove_shared_vm_struct(struct vm_area_struct *vma,
 {
 	if (vma->vm_flags & VM_DENYWRITE)
 		atomic_inc(&file_inode(file)->i_writecount);
-	if (vma->vm_flags & VM_SHARED)
+	if (vma->vm_flags & VM_SHARED) {
 		mapping->i_mmap_writable--;
+#ifdef CONFIG_MMAP_TRACKING
+		if (mapping->i_mmap_writable == 0)
+			mapping->i_mmap_lastmmap = 0;
+#endif
+	}
 
 	flush_dcache_mmap_lock(mapping);
 	if (unlikely(vma->vm_flags & VM_NONLINEAR))
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index bb2a8ec..9518361 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -38,6 +38,9 @@ config PARISC
 config MMU
 	def_bool y
 
+config MMAP_TRACKING
+	def_bool y
+
 config STACK_GROWSUP
 	def_bool y
 
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 31ffa9b..7d8cbd1 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -36,12 +36,12 @@
 #include <linux/personality.h>
 #include <linux/random.h>
 
-/* we construct an artificial offset for the mapping based on the physical
- * address of the kernel mapping variable */
+/* the address_space struct holds a field i_mmap_lastmmap with the last mapping
+ * of this file for us */
 #define GET_LAST_MMAP(filp)		\
-	(filp ? ((unsigned long) filp->f_mapping) >> 8 : 0UL)
+	(filp ? filp->f_mapping->i_mmap_lastmmap : 0UL)
 #define SET_LAST_MMAP(filp, val)	\
-	 { /* nothing */ }
+	{ if (filp) filp->f_mapping->i_mmap_lastmmap = (val); }
 
 static int get_offset(unsigned int last_mmap)
 {
--
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Hi Eric,

[I just noticed that this turned up in linux-next ...]

On Wed, 19 Mar 2014 18:04:02 -0400 Eric Paris <eparis@redhat.com> wrote:
>
> diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/as=
m/syscall.h
> index b54b2ad..4271544 100644
> --- a/arch/powerpc/include/asm/syscall.h
> +++ b/arch/powerpc/include/asm/syscall.h
> @@ -13,6 +13,8 @@
>  #ifndef _ASM_SYSCALL_H
>  #define _ASM_SYSCALL_H	1
> =20
> +#include <uapi/linux/audit.h>
> +#include <linux/compat.h>

You don't need linux/compat.h, I think, but you do need to include
linux/thread_info.h for is_32bit_task() below.

>  #include <linux/sched.h>
> =20
>  /* ftrace syscalls requires exporting the sys_call_table */
> @@ -86,4 +88,14 @@ static inline void syscall_set_arguments(struct task_s=
truct *task,
>  	memcpy(&regs->gpr[3 + i], args, n * sizeof(args[0]));
>  }
> =20
> +static inline int syscall_get_arch(void)
> +{
> +	int arch =3D AUDIT_ARCH_PPC;
> +
> +#ifdef CONFIG_PPC64
> +	if (!is_32bit_task())
> +		arch =3D AUDIT_ARCH_PPC64;
> +#endif
> +	return arch;

This could just be

	return is_32bit_task() ? AUDIT_ARCH_PPC : AUDIT_ARCH_PPC64;

as is_32bit_task() is always defined (and is (1) for !CONFIG_PPC64).

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

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From - Thu Nov 08 21:10:17 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] parisc: remove _STK_LIM_MAX override
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There are only a couple of architectures that override _STK_LIM_MAX to  
a non-infinity value.
This changes the stack allocation semantics in subtle ways.  For  
example, make changes its
stack allocation to the hard maximum defined by _STK_LIM_MAX.  As a  
results, threads executed
by processes running under make are allocated a stack size of  
_STK_LIM_MAX rather than
a sensible default value.  This causes various thread stress tests to  
fail when they can't muster
more than about 50 threads.

The attached change implements the default behavior used by the  
majority of architectures.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
---


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diff --git a/arch/parisc/include/uapi/asm/resource.h b/arch/parisc/include/uapi/asm/resource.h
index 8b06343..090483c 100644
--- a/arch/parisc/include/uapi/asm/resource.h
+++ b/arch/parisc/include/uapi/asm/resource.h
@@ -1,7 +1,6 @@
 #ifndef _ASM_PARISC_RESOURCE_H
 #define _ASM_PARISC_RESOURCE_H
 
-#define _STK_LIM_MAX	10 * _STK_LIM
 #include <asm-generic/resource.h>
 
 #endif

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--
John David Anglin	dave.anglin@bell.net


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Subject: Re: [PATCH] parisc: remove _STK_LIM_MAX override
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On Sun, Apr 27, 2014 at 4:20 PM, John David Anglin <dave.anglin@bell.net> wrote:
> The attached change implements the default behavior used by the majority of
> architectures.
>
> Signed-off-by: John David Anglin <dave.anglin@bell.net>

Reviewed-by: Carlos O'Donell <carlos@systemhalted.org>

I have reviewed the kernel code to make sure this does what's intended
and I've reviewed the userpace NPTL implementation to verify that the
new infinity value correctly causes the desired semantics e.g. use of
a sensible default.

This will cause threads using the max stack to have their stack
decreased from 80 MB to 8 MB, but 80 MB was never the correct value to
use anyway and is the cause of userspace failures to create more
threads.

Cheers,
Carlos.
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From - Thu Nov 08 21:10:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.kernel
Subject: Re: [RFC,PATCH] mm,parisc: keep track of last mmap'ed address
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No objections?
Then I assume this is OK...

Helge

On 04/17/2014 10:45 PM, Helge Deller wrote:
> Would the following patch be acceptable?
> It adds an additional field to struct address_space which will most likely only
> be used by the parisc arch.
> 
> If it's acceptable, I would like to push it through the parisc tree, if not,
> I'm of course open to other ideas too.
> 
> Thanks,
> Helge
> 
> PATCH:
> [RFC,PATCH] mm,parisc: keep track of last mmap'ed address
> 
> Because of parisc's cache aliasing constraints we need to map shared pages at a
> multiple of 4MB while most other architectures can map files at any multiple of
> PAGE_SIZE. In the past this constraint was ensured by calculating a virtual
> offset into this 4MB region which is based on the physical address of the
> kernel mapping variable (right-shift value of filp->f_mapping by 8 bits).
> Since we only have a 32bit userspace (even when running on a 64bit kernel) this
> often leads to large gaps in the maps of the userspace processes and to out of
> memory situations even if physical memory was still free.  Of course I did
> played with other variants of shifting the f_mapping value to find better
> offsets but this didn't helped either.
> 
> This patch chooses a different approach.
> It adds the additional field i_mmap_lastmmap to the address_space struct to
> keep track of the last mapping of a shared file. With this bookkeeping it's
> possible for the parisc memory allocator to 
> a) choose a new mapping offset if the file hasn't been mapped yet, and
> b) take the last-used mapping if it was already mapped by another process.
> 
> Overall this approach leads to a more condensed memory usage on parisc because
> the shared files will now be mapped much closer to each other. This is e.g.
> visible with shared libraries which are now not any longer cluttered around
> in the userspace process but close to each other at the top of the userspace
> memory.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/include/linux/fs.h b/include/linux/fs.h
> index 81048f9..f757a5c 100644
> --- a/include/linux/fs.h
> +++ b/include/linux/fs.h
> @@ -416,6 +416,9 @@ struct address_space {
>  	unsigned int		i_mmap_writable;/* count VM_SHARED mappings */
>  	struct rb_root		i_mmap;		/* tree of private and shared mappings */
>  	struct list_head	i_mmap_nonlinear;/*list VM_NONLINEAR mappings */
> +#ifdef CONFIG_MMAP_TRACKING
> +	unsigned long		i_mmap_lastmmap; /* address of last mmap */
> +#endif
>  	struct mutex		i_mmap_mutex;	/* protect tree, count, list */
>  	/* Protected by tree_lock together with the radix tree */
>  	unsigned long		nrpages;	/* number of total pages */
> diff --git a/mm/mmap.c b/mm/mmap.c
> index b1202cf..e2659c3 100644
> --- a/mm/mmap.c
> +++ b/mm/mmap.c
> @@ -212,8 +212,13 @@ static void __remove_shared_vm_struct(struct vm_area_struct *vma,
>  {
>  	if (vma->vm_flags & VM_DENYWRITE)
>  		atomic_inc(&file_inode(file)->i_writecount);
> -	if (vma->vm_flags & VM_SHARED)
> +	if (vma->vm_flags & VM_SHARED) {
>  		mapping->i_mmap_writable--;
> +#ifdef CONFIG_MMAP_TRACKING
> +		if (mapping->i_mmap_writable == 0)
> +			mapping->i_mmap_lastmmap = 0;
> +#endif
> +	}
>  
>  	flush_dcache_mmap_lock(mapping);
>  	if (unlikely(vma->vm_flags & VM_NONLINEAR))
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index bb2a8ec..9518361 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -38,6 +38,9 @@ config PARISC
>  config MMU
>  	def_bool y
>  
> +config MMAP_TRACKING
> +	def_bool y
> +
>  config STACK_GROWSUP
>  	def_bool y
>  
> diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
> index 31ffa9b..7d8cbd1 100644
> --- a/arch/parisc/kernel/sys_parisc.c
> +++ b/arch/parisc/kernel/sys_parisc.c
> @@ -36,12 +36,12 @@
>  #include <linux/personality.h>
>  #include <linux/random.h>
>  
> -/* we construct an artificial offset for the mapping based on the physical
> - * address of the kernel mapping variable */
> +/* the address_space struct holds a field i_mmap_lastmmap with the last mapping
> + * of this file for us */
>  #define GET_LAST_MMAP(filp)		\
> -	(filp ? ((unsigned long) filp->f_mapping) >> 8 : 0UL)
> +	(filp ? filp->f_mapping->i_mmap_lastmmap : 0UL)
>  #define SET_LAST_MMAP(filp, val)	\
> -	 { /* nothing */ }
> +	{ if (filp) filp->f_mapping->i_mmap_lastmmap = (val); }
>  
>  static int get_offset(unsigned int last_mmap)
>  {

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From - Thu Nov 08 21:10:17 2018
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel,gmane.linux.ports.parisc
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To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	James Bottomley <James.Bottomley-d9PhHud1JfjCXq6kfMZ53/egYHeGw8Jk@public.gmane.org>,
	John David Anglin <dave.anglin-CzeTG9NwML0@public.gmane.org>,
	linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
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This patch affects only architectures where the stack grows upwards
(currently parisc and metag only). On those do not hardcode the maximum
initial stack size to 1GB, but make it configurable via a config option.

The main problem with the hardcoded stack size is, that we have two
memory regions which grow upwards: stack and heap. To keep most of the
memory available for heap in a flexmap memoy layout, it makes no sense
to hard allocate up to 1GB of the memory for stack which can't be used
as heap then.

This patch makes the stack size configurable and uses 80MB as default
value which has been in use during the last few years on parisc and
which didn't showed any problems yet.

Signed-off-by: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: John David Anglin <dave.anglin-CzeTG9NwML0@public.gmane.org>

diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 7d8cbd1..9118f01 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -72,10 +72,10 @@ static unsigned long mmap_upper_limit(void)
 {
 	unsigned long stack_base;
 
-	/* Limit stack size to 1GB - see setup_arg_pages() in fs/exec.c */
+	/* Limit stack size - see setup_arg_pages() in fs/exec.c */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > CONFIG_MAX_STACK_SIZE_MB*1024*1024)
+		stack_base = CONFIG_MAX_STACK_SIZE_MB*1024*1024;
 
 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }
diff --git a/fs/exec.c b/fs/exec.c
index 476f3eb..994108c 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -657,10 +657,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	unsigned long rlim_stack;
 
 #ifdef CONFIG_STACK_GROWSUP
-	/* Limit stack size to 1GB */
+	/* Limit stack size */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > CONFIG_MAX_STACK_SIZE_MB*1024*1024)
+		stack_base = CONFIG_MAX_STACK_SIZE_MB*1024*1024;
 
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
diff --git a/init/Kconfig b/init/Kconfig
index 9d3585b..436e479 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1862,6 +1862,17 @@ config STOP_MACHINE
 	help
 	  Need stop_machine() primitive.
 
+config MAX_STACK_SIZE_MB
+	int "Default initial maximum stack size"
+	default 80
+	range 8 2048
+	depends on STACK_GROWSUP
+	help
+	  This is the default initial stack size in Megabytes in the VM layout of user
+	  processes when the stack grows upwards (currently only on parisc and matag
+	  arch).  The stack will be located at the highest memory address minus the
+	  given value. A sane initial value is 80 MB.
+
 source "block/Kconfig"
 
 config PREEMPT_NOTIFIERS
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Subject: Re: [PATCH] parisc,metag: Do not hardcode maximum userspace stack size
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On 30-Apr-14, at 5:26 PM, Helge Deller wrote:

> +	  processes when the stack grows upwards (currently only on parisc  
> and matag

"metag" is mispelled.

Dave
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From: James Hogan <james.hogan@imgtec.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.metag
Subject: Re: [PATCH] parisc,metag: Do not hardcode maximum userspace stack
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Hi Helge,

On 30/04/14 22:26, Helge Deller wrote:
> This patch affects only architectures where the stack grows upwards
> (currently parisc and metag only). On those do not hardcode the maximum=

> initial stack size to 1GB, but make it configurable via a config option=
=2E
>=20
> The main problem with the hardcoded stack size is, that we have two
> memory regions which grow upwards: stack and heap. To keep most of the
> memory available for heap in a flexmap memoy layout, it makes no sense
> to hard allocate up to 1GB of the memory for stack which can't be used
> as heap then.
>=20
> This patch makes the stack size configurable and uses 80MB as default
> value which has been in use during the last few years on parisc and
> which didn't showed any problems yet.
>=20
> Signed-off-by: Helge Deller <deller@gmx.de>
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-metag@vger.kernel.org
> Cc: John David Anglin <dave.anglin@bell.net>
>=20
> diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_p=
arisc.c
> index 7d8cbd1..9118f01 100644
> --- a/arch/parisc/kernel/sys_parisc.c
> +++ b/arch/parisc/kernel/sys_parisc.c
> @@ -72,10 +72,10 @@ static unsigned long mmap_upper_limit(void)
>  {
>  	unsigned long stack_base;
> =20
> -	/* Limit stack size to 1GB - see setup_arg_pages() in fs/exec.c */
> +	/* Limit stack size - see setup_arg_pages() in fs/exec.c */
>  	stack_base =3D rlimit_max(RLIMIT_STACK);
> -	if (stack_base > (1 << 30))
> -		stack_base =3D 1 << 30;
> +	if (stack_base > CONFIG_MAX_STACK_SIZE_MB*1024*1024)
> +		stack_base =3D CONFIG_MAX_STACK_SIZE_MB*1024*1024;
> =20
>  	return PAGE_ALIGN(STACK_TOP - stack_base);
>  }
> diff --git a/fs/exec.c b/fs/exec.c
> index 476f3eb..994108c 100644
> --- a/fs/exec.c
> +++ b/fs/exec.c
> @@ -657,10 +657,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
>  	unsigned long rlim_stack;
> =20
>  #ifdef CONFIG_STACK_GROWSUP
> -	/* Limit stack size to 1GB */
> +	/* Limit stack size */
>  	stack_base =3D rlimit_max(RLIMIT_STACK);
> -	if (stack_base > (1 << 30))
> -		stack_base =3D 1 << 30;
> +	if (stack_base > CONFIG_MAX_STACK_SIZE_MB*1024*1024)
> +		stack_base =3D CONFIG_MAX_STACK_SIZE_MB*1024*1024;

When I remove metag's _STK_LIM_MAX override (before your patch) it
panics when I next start a process (since stack_top =3D 0x3ffff000 so the=

1GB default is way too big).

That could actually always have been triggered even with the default
_STK_LIM_MAX override, by just changing it from userland (as root),
e.g.:
# ulimit -H -s unlimited
# cat
BUG: failure at fs/exec.c:589/shift_arg_pages()!
Kernel panic - not syncing: BUG!

I'm guessing this doesn't affect parisc due to stack_top being above
1GB, but since this patch effectively fixes a bug on metag (by changing
the maximum stack size to a smaller/safe value) I'd like to take this
patch and submit upstream for v3.15, and mark for stable. Would that be
okay with you?

A few suggestions below though...

> =20
>  	/* Make sure we didn't let the argument array grow too large. */
>  	if (vma->vm_end - vma->vm_start > stack_base)
> diff --git a/init/Kconfig b/init/Kconfig
> index 9d3585b..436e479 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -1862,6 +1862,17 @@ config STOP_MACHINE
>  	help
>  	  Need stop_machine() primitive.
> =20
> +config MAX_STACK_SIZE_MB
> +	int "Default initial maximum stack size"
> +	default 80

can we insert here:
range 8 256 if METAG

> +	range 8 2048
> +	depends on STACK_GROWSUP
> +	help
> +	  This is the default initial stack size in Megabytes in the VM layou=
t of user
> +	  processes when the stack grows upwards (currently only on parisc an=
d matag
> +	  arch).  The stack will be located at the highest memory address min=
us the
> +	  given value. A sane initial value is 80 MB.

This config option appears in the root menu. Can we move it into a
submenu, e.g. mm/Kconfig would seem a good place for it, then it appears
in the "Processor type and features" menu.

Also, technically it's the absolute maximum stack size, which happens to
be the default unless the user reduces the RLIMIT_STACK hard limit.

How does the v2 below look?

=46rom c34f0ec062ae1a2c9fca3eddbc705f6b0faf97ca Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Wed, 30 Apr 2014 23:26:02 +0200
Subject: [PATCH v2] parisc,metag: Do not hardcode maximum userspace stack=

 size

This patch affects only architectures where the stack grows upwards
(currently parisc and metag only). On those do not hardcode the maximum
initial stack size to 1GB, but make it configurable via a config option.

The main problem with the hardcoded stack size is, that we have two
memory regions which grow upwards: stack and heap. To keep most of the
memory available for heap in a flexmap memoy layout, it makes no sense
to hard allocate up to 1GB of the memory for stack which can't be used
as heap then.

This patch makes the stack size configurable and uses 80MB as default
value which has been in use during the last few years on parisc and
which didn't showed any problems yet.

This also fixes a BUG on metag if the RLIMIT_STACK hard limit is
increased beyond a safe value by root. E.g. when starting a process
after running "ulimit -H -s unlimited" it will then attempt to use a
stack size of the maximum 1GB which is far too big for metag's limited
user virtual address space (stack_top is usually 0x3ffff000):
BUG: failure at fs/exec.c:589/shift_arg_pages()!

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-parisc@vger.kernel.org
Cc: linux-metag@vger.kernel.org
Cc: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org
---
v2 (James Hogan):
 - updated description to mention BUG on metag.
 - added custom range limit for METAG.
 - moved Kconfig symbol to mm/Kconfig and reworded.
 - fixed "matag" typo.
---
 arch/parisc/kernel/sys_parisc.c |  6 +++---
 fs/exec.c                       |  6 +++---
 mm/Kconfig                      | 15 +++++++++++++++
 3 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_par=
isc.c
index 31ffa9b55322..9f040261151e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -72,10 +72,10 @@ static unsigned long mmap_upper_limit(void)
 {
 	unsigned long stack_base;

-	/* Limit stack size to 1GB - see setup_arg_pages() in fs/exec.c */
+	/* Limit stack size - see setup_arg_pages() in fs/exec.c */
 	stack_base =3D rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base =3D 1 << 30;
+	if (stack_base > CONFIG_MAX_STACK_SIZE_MB*1024*1024)
+		stack_base =3D CONFIG_MAX_STACK_SIZE_MB*1024*1024;

 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }
diff --git a/fs/exec.c b/fs/exec.c
index 476f3ebf437e..994108cc60f3 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -657,10 +657,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	unsigned long rlim_stack;

 #ifdef CONFIG_STACK_GROWSUP
-	/* Limit stack size to 1GB */
+	/* Limit stack size */
 	stack_base =3D rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base =3D 1 << 30;
+	if (stack_base > CONFIG_MAX_STACK_SIZE_MB*1024*1024)
+		stack_base =3D CONFIG_MAX_STACK_SIZE_MB*1024*1024;

 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
diff --git a/mm/Kconfig b/mm/Kconfig
index ebe5880c29d6..e80075979530 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -581,3 +581,18 @@ config PGTABLE_MAPPING

 config GENERIC_EARLY_IOREMAP
 	bool
+
+config MAX_STACK_SIZE_MB
+	int "Maximum user stack size (MB)"
+	default 80
+	range 8 256 if METAG
+	range 8 2048
+	depends on STACK_GROWSUP
+	help
+	  This is the maximum stack size in Megabytes in the VM layout of user
+	  processes when the stack grows upwards (currently only on parisc and
+	  metag arch). The stack will be located at the highest memory address
+	  minus the given value, unless the RLIMIT_STACK hard limit is changed
+	  to a smaller value in which case that is used.
+
+	  A sane initial value is 80 MB.
--=20
1.9.2



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From - Thu Nov 08 21:10:17 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.metag
Subject: Re: [PATCH] parisc,metag: Do not hardcode maximum userspace stack
 size
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To: Helge Deller <deller@gmx.de>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org,
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On 4/30/2014 5:26 PM, Helge Deller wrote:
> This patch makes the stack size configurable and uses 80MB as default
> value which has been in use during the last few years on parisc and
> which didn't showed any problems yet.
>
> Signed-off-by: Helge Deller<deller@gmx.de>
> Cc:linux-parisc@vger.kernel.org
> Cc:linux-metag@vger.kernel.org
> Cc: John David Anglin<dave.anglin@bell.net>
>
I tested this version of the patch last night on 3.14.2.  I can
confirm that an 80MB region is reserved for stack at the expected
location in virtual memory with the default config setting.  GCC
and many other packages have built successfully with this setting.

Tested-by: John David Anglin <dave.anglin@bell.net>

---

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH] parisc,metag: Do not hardcode maximum userspace stack
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> +
> +config MAX_STACK_SIZE_MB
> +	int "Maximum user stack size (MB)"
> +	default 80
> +	range 8 256 if METAG
> +	range 8 2048
> +	depends on STACK_GROWSUP
> +	help
> +	  This is the maximum stack size in Megabytes in the VM layout of user
> +	  processes when the stack grows upwards (currently only on parisc and
> +	  metag arch). The stack will be located at the highest memory address
> +	  minus the given value, unless the RLIMIT_STACK hard limit is changed
> +	  to a smaller value in which case that is used.
> +
> +	  A sane initial value is 80 MB.

There's one final issue with this: placement of the stack only really
matters on 32 bits.  We have three expanding memory areas: stack, heap
and maps.  On 64 bits these are placed well separated from each other on
64 bits, so an artificial limit like this doesn't matter.

Also, even on 32 bits, I can't help feeling we could simply layout the
binary better ... the problem is we have three upward growing regions:
stack, maps and   heap.  However, if you look at the current standard elf
layout for downward growing stacks, the maps grow up from the bottom
until it hits the mapped binary, the heap grows up from the mapped
binary and the stack grows down from the top.  You run out of memory
when the stack and heap cross or when the maps hits the binary.
Obviously with three upwardly growing regions, it's problematic, but we
could do something like make the maps grow down (can't, unfortunately,
make the heap grow down since sbrk depends on the upward behaviour).


James


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From - Thu Nov 08 21:10:17 2018
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From: "Helge Deller" <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.metag
Subject: Aw: Re: [PATCH] parisc,metag: Do not hardcode maximum userspace
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	"James Bottomley" <James.Bottomley@HansenPartnership.com>,
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Hi James,

> I'd like to take this patch and submit upstream for v3.15, and mark for stable.
> Would that be okay with you?
> [...]
> How does the v2 below look?

Your patch looks good.
Thanks for cleaning it up and moving the config option to the better place.
I just tested it on parisc and it works as expected.

I'm absolutely fine if you push your version of the patch through the metag git tree upstream.

Thanks!
Helge  

 
> From c34f0ec062ae1a2c9fca3eddbc705f6b0faf97ca Mon Sep 17 00:00:00 2001
> From: Helge Deller <deller@gmx.de>
> Date: Wed, 30 Apr 2014 23:26:02 +0200
> Subject: [PATCH v2] parisc,metag: Do not hardcode maximum userspace stack
>  size
> 
> This patch affects only architectures where the stack grows upwards
> (currently parisc and metag only). On those do not hardcode the maximum
> initial stack size to 1GB, but make it configurable via a config option.
> 
> The main problem with the hardcoded stack size is, that we have two
> memory regions which grow upwards: stack and heap. To keep most of the
> memory available for heap in a flexmap memoy layout, it makes no sense
> to hard allocate up to 1GB of the memory for stack which can't be used
> as heap then.
> 
> This patch makes the stack size configurable and uses 80MB as default
> value which has been in use during the last few years on parisc and
> which didn't showed any problems yet.
> 
> This also fixes a BUG on metag if the RLIMIT_STACK hard limit is
> increased beyond a safe value by root. E.g. when starting a process
> after running "ulimit -H -s unlimited" it will then attempt to use a
> stack size of the maximum 1GB which is far too big for metag's limited
> user virtual address space (stack_top is usually 0x3ffff000):
> BUG: failure at fs/exec.c:589/shift_arg_pages()!
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> Signed-off-by: James Hogan <james.hogan@imgtec.com>
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-metag@vger.kernel.org
> Cc: John David Anglin <dave.anglin@bell.net>
> Cc: stable@vger.kernel.org
> ---
> v2 (James Hogan):
>  - updated description to mention BUG on metag.
>  - added custom range limit for METAG.
>  - moved Kconfig symbol to mm/Kconfig and reworded.
>  - fixed "matag" typo.
> ---
>  arch/parisc/kernel/sys_parisc.c |  6 +++---
>  fs/exec.c                       |  6 +++---
>  mm/Kconfig                      | 15 +++++++++++++++
>  3 files changed, 21 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
> index 31ffa9b55322..9f040261151e 100644
> --- a/arch/parisc/kernel/sys_parisc.c
> +++ b/arch/parisc/kernel/sys_parisc.c
> @@ -72,10 +72,10 @@ static unsigned long mmap_upper_limit(void)
>  {
>  	unsigned long stack_base;
> 
> -	/* Limit stack size to 1GB - see setup_arg_pages() in fs/exec.c */
> +	/* Limit stack size - see setup_arg_pages() in fs/exec.c */
>  	stack_base = rlimit_max(RLIMIT_STACK);
> -	if (stack_base > (1 << 30))
> -		stack_base = 1 << 30;
> +	if (stack_base > CONFIG_MAX_STACK_SIZE_MB*1024*1024)
> +		stack_base = CONFIG_MAX_STACK_SIZE_MB*1024*1024;
> 
>  	return PAGE_ALIGN(STACK_TOP - stack_base);
>  }
> diff --git a/fs/exec.c b/fs/exec.c
> index 476f3ebf437e..994108cc60f3 100644
> --- a/fs/exec.c
> +++ b/fs/exec.c
> @@ -657,10 +657,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
>  	unsigned long rlim_stack;
> 
>  #ifdef CONFIG_STACK_GROWSUP
> -	/* Limit stack size to 1GB */
> +	/* Limit stack size */
>  	stack_base = rlimit_max(RLIMIT_STACK);
> -	if (stack_base > (1 << 30))
> -		stack_base = 1 << 30;
> +	if (stack_base > CONFIG_MAX_STACK_SIZE_MB*1024*1024)
> +		stack_base = CONFIG_MAX_STACK_SIZE_MB*1024*1024;
> 
>  	/* Make sure we didn't let the argument array grow too large. */
>  	if (vma->vm_end - vma->vm_start > stack_base)
> diff --git a/mm/Kconfig b/mm/Kconfig
> index ebe5880c29d6..e80075979530 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -581,3 +581,18 @@ config PGTABLE_MAPPING
> 
>  config GENERIC_EARLY_IOREMAP
>  	bool
> +
> +config MAX_STACK_SIZE_MB
> +	int "Maximum user stack size (MB)"
> +	default 80
> +	range 8 256 if METAG
> +	range 8 2048
> +	depends on STACK_GROWSUP
> +	help
> +	  This is the maximum stack size in Megabytes in the VM layout of user
> +	  processes when the stack grows upwards (currently only on parisc and
> +	  metag arch). The stack will be located at the highest memory address
> +	  minus the given value, unless the RLIMIT_STACK hard limit is changed
> +	  to a smaller value in which case that is used.
> +
> +	  A sane initial value is 80 MB.
> -- 
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From - Thu Nov 08 21:10:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc updates for v3.15
Date: Thu, 1 May 2014 20:38:22 +0200
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi Linus,

please pull the latest parisc architecture fixes for kernel 3.15 from: 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.15-2

There are two fixes in this patchset:
- Drop the architecture-specifc value for_STK_LIM_MAX to fix stack related
  problems with GNU make.
- Make mmap() behave similiar to other architectures: If a file hasn't been
  mapped yet, we can now map it at any given page-aligned address.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (2):
      parisc: Use generic uapi/asm/resource.h file
      mm,parisc: keep track of last mmap'ed address

John David Anglin (1):
      parisc: remove _STK_LIM_MAX override

 arch/parisc/Kconfig                     | 3 +++
 arch/parisc/include/uapi/asm/Kbuild     | 3 ++-
 arch/parisc/include/uapi/asm/resource.h | 7 -------
 arch/parisc/kernel/sys_parisc.c         | 8 ++++----
 include/linux/fs.h                      | 3 +++
 mm/mmap.c                               | 7 ++++++-
 6 files changed, 18 insertions(+), 13 deletions(-)
 delete mode 100644 arch/parisc/include/uapi/asm/resource.h
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From - Thu Nov 08 21:10:17 2018
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From: Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [GIT PULL] parisc updates for v3.15
Date: Thu, 1 May 2014 12:23:09 -0700
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To: Helge Deller <deller@gmx.de>
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On Thu, May 1, 2014 at 11:38 AM, Helge Deller <deller@gmx.de> wrote:
>
> - Make mmap() behave similiar to other architectures: If a file hasn't been
>   mapped yet, we can now map it at any given page-aligned address.

Ugh, so I pulled this, but I'm going to unpull it, because I dislike
your new "i_mmap_lastmap" field.

Now, the i_mmap_lastmap field itself, I could probably live with, but
this change to generic code:

  +       if (vma->vm_flags & VM_SHARED) {
                  mapping->i_mmap_writable--;
  +#ifdef CONFIG_MMAP_TRACKING
  +               if (mapping->i_mmap_writable == 0)
  +                       mapping->i_mmap_lastmmap = 0;
  +#endif
  +       }

makes me just gouge my eyes out. It's not only uglifying generic code,
it's _stupid_ even when it's used.

What's magic about "i_mmap_lastmmap" having the value zero? Nothing.
Maybe somebody wants to map stuff at that zero value, and has the
permissions to do so.

So zeroing it is wrong. It's also entirely unnecessary, since you can
just look at the "mapping->i_mmap_writable" value instead. So instead
of checking "is i_mmap_lastmmap zero" as a way to check whether you
can now use any virtual address, which is wrong _anyway_, you should
have checked "is i_mmap_writable zero".

Now, I *also* suspect that you could just get rid of i_mmap_lastmmap
_entirely_, and instead just make "GET_LAST_MMAP()" just look up the
first shared mapping it can find in the rb tree (if i_mmap_writable is
non-null).

But if it was just that one (unnecessary) field in the "struct
address_space", I probably wouldn't mind, and say "ok, parisc has
broken virtual caches, what else is new". But the fact that it adds
code to the generic file just adds insult to injury and makes me go
"no, I don't want to pull this".

Mind fixing this? Here's a TOTALLY UNTESTED patch that may or may not
work, but might at least act as a starting point.

Hmm?

              Linus

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From - Thu Nov 08 21:10:18 2018
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Subject: Re: [GIT PULL] parisc updates for v3.15
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Hi Linus,

On 05/01/2014 09:23 PM, Linus Torvalds wrote:
> On Thu, May 1, 2014 at 11:38 AM, Helge Deller <deller@gmx.de> wrote:
>>
>> - Make mmap() behave similiar to other architectures: If a file hasn't been
>>   mapped yet, we can now map it at any given page-aligned address.
> 
> Ugh, so I pulled this, but I'm going to unpull it, because I dislike
> your new "i_mmap_lastmap" field.
> 
> Now, the i_mmap_lastmap field itself, I could probably live with, but
> this change to generic code:
> 
>   +       if (vma->vm_flags & VM_SHARED) {
>                   mapping->i_mmap_writable--;
>   +#ifdef CONFIG_MMAP_TRACKING
>   +               if (mapping->i_mmap_writable == 0)
>   +                       mapping->i_mmap_lastmmap = 0;
>   +#endif
>   +       }
> 
> makes me just gouge my eyes out. It's not only uglifying generic code,
> it's _stupid_ even when it's used.
> 
> What's magic about "i_mmap_lastmmap" having the value zero? Nothing.
> Maybe somebody wants to map stuff at that zero value, and has the
> permissions to do so.
> 
> So zeroing it is wrong. It's also entirely unnecessary, since you can
> just look at the "mapping->i_mmap_writable" value instead. So instead
> of checking "is i_mmap_lastmmap zero" as a way to check whether you
> can now use any virtual address, which is wrong _anyway_, you should
> have checked "is i_mmap_writable zero".
> 
> Now, I *also* suspect that you could just get rid of i_mmap_lastmmap
> _entirely_, and instead just make "GET_LAST_MMAP()" just look up the
> first shared mapping it can find in the rb tree (if i_mmap_writable is
> non-null).
> 
> But if it was just that one (unnecessary) field in the "struct
> address_space", I probably wouldn't mind, and say "ok, parisc has
> broken virtual caches, what else is new". But the fact that it adds
> code to the generic file just adds insult to injury and makes me go
> "no, I don't want to pull this".
> 
> Mind fixing this? Here's a TOTALLY UNTESTED patch that may or may not
> work, but might at least act as a starting point.

I agree that this idea looks much better.
I will try to rewrite this code as you suggested (it sadly didn't worked out of the box).
But since it will take me some time, do you mind to pull in the other two remaining patches?
They fix a bug with GNU make on our debian build servers and I would like one of them to be backported into stable for 3.14...

Here is the *new* pull request (I dropped the patch above!):

Hi Linus,
please pull the latest parisc architecture fixes for kernel 3.15 from: 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.15-3

Those two patches drop the architecture-specifc value for_STK_LIM_MAX to 
fix stack related problems with GNU make.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (1):
      parisc: Use generic uapi/asm/resource.h file

John David Anglin (1):
      parisc: remove _STK_LIM_MAX override

 arch/parisc/include/uapi/asm/Kbuild     | 3 ++-
 arch/parisc/include/uapi/asm/resource.h | 7 -------
 2 files changed, 2 insertions(+), 8 deletions(-)
 delete mode 100644 arch/parisc/include/uapi/asm/resource.h

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On Thu, May 1, 2014 at 2:55 PM, Helge Deller <deller@gmx.de> wrote:
>
> I agree that this idea looks much better.
> I will try to rewrite this code as you suggested (it sadly didn't worked out of the box).
> But since it will take me some time, do you mind to pull in the other two remaining patches?

Done.

        Linus
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On 01/05/14 18:50, James Bottomley wrote:
>=20
>> +
>> +config MAX_STACK_SIZE_MB
>> +	int "Maximum user stack size (MB)"
>> +	default 80
>> +	range 8 256 if METAG
>> +	range 8 2048
>> +	depends on STACK_GROWSUP
>> +	help
>> +	  This is the maximum stack size in Megabytes in the VM layout of us=
er
>> +	  processes when the stack grows upwards (currently only on parisc a=
nd
>> +	  metag arch). The stack will be located at the highest memory addre=
ss
>> +	  minus the given value, unless the RLIMIT_STACK hard limit is chang=
ed
>> +	  to a smaller value in which case that is used.
>> +
>> +	  A sane initial value is 80 MB.
>=20
> There's one final issue with this: placement of the stack only really
> matters on 32 bits.  We have three expanding memory areas: stack, heap
> and maps.  On 64 bits these are placed well separated from each other o=
n
> 64 bits, so an artificial limit like this doesn't matter.

Does the following fixup diff look reasonable? It forces
MAX_STACK_SIZE_MB to 1024 and hides the Kconfig option for 64BIT,
effectively leaving the behaviour unchanged in that case.

diff --git a/mm/Kconfig b/mm/Kconfig
index e80075979530..b0307f737bd7 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -583,7 +583,8 @@ config GENERIC_EARLY_IOREMAP
 	bool

 config MAX_STACK_SIZE_MB
-	int "Maximum user stack size (MB)"
+	int "Maximum user stack size (MB)" if !64BIT
+	default 1024 if 64BIT
 	default 80
 	range 8 256 if METAG
 	range 8 2048

Thanks
James


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On Fri, 2014-05-02 at 12:54 +0100, James Hogan wrote:
> On 01/05/14 18:50, James Bottomley wrote:
> > 
> >> +
> >> +config MAX_STACK_SIZE_MB
> >> +	int "Maximum user stack size (MB)"
> >> +	default 80
> >> +	range 8 256 if METAG
> >> +	range 8 2048
> >> +	depends on STACK_GROWSUP
> >> +	help
> >> +	  This is the maximum stack size in Megabytes in the VM layout of user
> >> +	  processes when the stack grows upwards (currently only on parisc and
> >> +	  metag arch). The stack will be located at the highest memory address
> >> +	  minus the given value, unless the RLIMIT_STACK hard limit is changed
> >> +	  to a smaller value in which case that is used.
> >> +
> >> +	  A sane initial value is 80 MB.
> > 
> > There's one final issue with this: placement of the stack only really
> > matters on 32 bits.  We have three expanding memory areas: stack, heap
> > and maps.  On 64 bits these are placed well separated from each other on
> > 64 bits, so an artificial limit like this doesn't matter.
> 
> Does the following fixup diff look reasonable? It forces
> MAX_STACK_SIZE_MB to 1024 and hides the Kconfig option for 64BIT,
> effectively leaving the behaviour unchanged in that case.
> 
> diff --git a/mm/Kconfig b/mm/Kconfig
> index e80075979530..b0307f737bd7 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -583,7 +583,8 @@ config GENERIC_EARLY_IOREMAP
>  	bool
> 
>  config MAX_STACK_SIZE_MB
> -	int "Maximum user stack size (MB)"
> +	int "Maximum user stack size (MB)" if !64BIT
> +	default 1024 if 64BIT
>  	default 80
>  	range 8 256 if METAG
>  	range 8 2048

Yes, I think that's probably correct ... parisc doesn't actually have
anything other than a testbed 64 bit userspace, so this is a bit
theoretical for us.

James


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On 05/02/2014 04:48 PM, James Bottomley wrote:
> On Fri, 2014-05-02 at 12:54 +0100, James Hogan wrote:
>> On 01/05/14 18:50, James Bottomley wrote:
>>>
>>>> +
>>>> +config MAX_STACK_SIZE_MB
>>>> +	int "Maximum user stack size (MB)"
>>>> +	default 80
>>>> +	range 8 256 if METAG
>>>> +	range 8 2048
>>>> +	depends on STACK_GROWSUP
>>>> +	help
>>>> +	  This is the maximum stack size in Megabytes in the VM layout of user
>>>> +	  processes when the stack grows upwards (currently only on parisc and
>>>> +	  metag arch). The stack will be located at the highest memory address
>>>> +	  minus the given value, unless the RLIMIT_STACK hard limit is changed
>>>> +	  to a smaller value in which case that is used.
>>>> +
>>>> +	  A sane initial value is 80 MB.
>>>
>>> There's one final issue with this: placement of the stack only really
>>> matters on 32 bits.  We have three expanding memory areas: stack, heap
>>> and maps.  On 64 bits these are placed well separated from each other on
>>> 64 bits, so an artificial limit like this doesn't matter.
>>
>> Does the following fixup diff look reasonable? It forces
>> MAX_STACK_SIZE_MB to 1024 and hides the Kconfig option for 64BIT,
>> effectively leaving the behaviour unchanged in that case.
>>
>> diff --git a/mm/Kconfig b/mm/Kconfig
>> index e80075979530..b0307f737bd7 100644
>> --- a/mm/Kconfig
>> +++ b/mm/Kconfig
>> @@ -583,7 +583,8 @@ config GENERIC_EARLY_IOREMAP
>>  	bool
>>
>>  config MAX_STACK_SIZE_MB
>> -	int "Maximum user stack size (MB)"
>> +	int "Maximum user stack size (MB)" if !64BIT
>> +	default 1024 if 64BIT
>>  	default 80
>>  	range 8 256 if METAG
>>  	range 8 2048
> 
> Yes, I think that's probably correct ... 

No, it's not correct.
It will then choose then a 1GB stack for compat tasks on 64bit kernel.

Helge

> parisc doesn't actually have
> anything other than a testbed 64 bit userspace, so this is a bit
> theoretical for us.




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From - Thu Nov 08 21:10:18 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: ratelimit userspace segfault printing
Date: Mon, 5 May 2014 18:07:12 +0200
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To: linux-parisc@vger.kernel.org,
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Ratelimit printing of userspace segfaults and make it runtime
configurable via the /proc/sys/debug/exception-trace variable. This
should resolve syslog from growing way too fast.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 1faefed..108d48e 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -22,6 +22,7 @@ config PARISC
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_STRNCPY_FROM_USER
 	select SYSCTL_ARCH_UNALIGN_ALLOW
+	select SYSCTL_EXCEPTION_TRACE
 	select HAVE_MOD_ARCH_SPECIFIC
 	select VIRT_TO_BUS
 	select MODULES_USE_ELF_RELA
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 1cd1d0c..47ee620 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -25,6 +25,7 @@
 #include <linux/interrupt.h>
 #include <linux/console.h>
 #include <linux/bug.h>
+#include <linux/ratelimit.h>
 
 #include <asm/assembly.h>
 #include <asm/uaccess.h>
@@ -42,9 +43,6 @@
 
 #include "../math-emu/math-emu.h"	/* for handle_fpe() */
 
-#define PRINT_USER_FAULTS /* (turn this on if you want user faults to be */
-			  /*  dumped to the console via printk)          */
-
 #if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
 DEFINE_SPINLOCK(pa_dbit_lock);
 #endif
@@ -160,6 +158,17 @@ void show_regs(struct pt_regs *regs)
 	}
 }
 
+static DEFINE_RATELIMIT_STATE(_hppa_rs,
+	DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST);
+
+#define parisc_printk_ratelimited(critical, regs, fmt, ...)	{	      \
+	if ((critical || show_unhandled_signals) && __ratelimit(&_hppa_rs)) { \
+		printk(fmt, ##__VA_ARGS__);				      \
+		show_regs(regs);					      \
+	}								      \
+}
+
+
 static void do_show_stack(struct unwind_frame_info *info)
 {
 	int i = 1;
@@ -229,12 +238,10 @@ void die_if_kernel(char *str, struct pt_regs *regs, long err)
 		if (err == 0)
 			return; /* STFU */
 
-		printk(KERN_CRIT "%s (pid %d): %s (code %ld) at " RFMT "\n",
+		parisc_printk_ratelimited(1, regs,
+			KERN_CRIT "%s (pid %d): %s (code %ld) at " RFMT "\n",
 			current->comm, task_pid_nr(current), str, err, regs->iaoq[0]);
-#ifdef PRINT_USER_FAULTS
-		/* XXX for debugging only */
-		show_regs(regs);
-#endif
+
 		return;
 	}
 
@@ -321,14 +328,11 @@ static void handle_break(struct pt_regs *regs)
 			(tt == BUG_TRAP_TYPE_NONE) ? 9 : 0);
 	}
 
-#ifdef PRINT_USER_FAULTS
-	if (unlikely(iir != GDB_BREAK_INSN)) {
-		printk(KERN_DEBUG "break %d,%d: pid=%d command='%s'\n",
+	if (unlikely(iir != GDB_BREAK_INSN))
+		parisc_printk_ratelimited(0, regs,
+			KERN_DEBUG "break %d,%d: pid=%d command='%s'\n",
 			iir & 31, (iir>>13) & ((1<<13)-1),
 			task_pid_nr(current), current->comm);
-		show_regs(regs);
-	}
-#endif
 
 	/* send standard GDB signal */
 	handle_gdb_break(regs, TRAP_BRKPT);
@@ -758,11 +762,9 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 
 	default:
 		if (user_mode(regs)) {
-#ifdef PRINT_USER_FAULTS
-			printk(KERN_DEBUG "\nhandle_interruption() pid=%d command='%s'\n",
-			    task_pid_nr(current), current->comm);
-			show_regs(regs);
-#endif
+			parisc_printk_ratelimited(0, regs, KERN_DEBUG
+				"handle_interruption() pid=%d command='%s'\n",
+				task_pid_nr(current), current->comm);
 			/* SIGBUS, for lack of a better one. */
 			si.si_signo = SIGBUS;
 			si.si_code = BUS_OBJERR;
@@ -779,16 +781,10 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 
 	if (user_mode(regs)) {
 	    if ((fault_space >> SPACEID_SHIFT) != (regs->sr[7] >> SPACEID_SHIFT)) {
-#ifdef PRINT_USER_FAULTS
-		if (fault_space == 0)
-			printk(KERN_DEBUG "User Fault on Kernel Space ");
-		else
-			printk(KERN_DEBUG "User Fault (long pointer) (fault %d) ",
-			       code);
-		printk(KERN_CONT "pid=%d command='%s'\n",
-		       task_pid_nr(current), current->comm);
-		show_regs(regs);
-#endif
+		parisc_printk_ratelimited(0, regs, KERN_DEBUG
+				"User fault %d on space 0x%08lx, pid=%d command='%s'\n",
+				code, fault_space,
+				task_pid_nr(current), current->comm);
 		si.si_signo = SIGSEGV;
 		si.si_errno = 0;
 		si.si_code = SEGV_MAPERR;
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 7475507..a73e905 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -19,10 +19,6 @@
 #include <asm/uaccess.h>
 #include <asm/traps.h>
 
-#define PRINT_USER_FAULTS /* (turn this on if you want user faults to be */
-			 /*  dumped to the console via printk)          */
-
-
 /* Various important other fields */
 #define bit22set(x)		(x & 0x00000200)
 #define bits23_25set(x)		(x & 0x000001c0)
@@ -34,6 +30,8 @@
 
 DEFINE_PER_CPU(struct exception_data, exception_data);
 
+int show_unhandled_signals = 1;
+
 /*
  * parisc_acctyp(unsigned int inst) --
  *    Given a PA-RISC memory access instruction, determine if the
@@ -173,6 +171,32 @@ int fixup_exception(struct pt_regs *regs)
 	return 0;
 }
 
+/*
+ * Print out info about fatal segfaults, if the show_unhandled_signals
+ * sysctl is set:
+ */
+static inline void
+show_signal_msg(struct pt_regs *regs, unsigned long code,
+		unsigned long address, struct task_struct *tsk,
+		struct vm_area_struct *vma)
+{
+	if (!unhandled_signal(tsk, SIGSEGV))
+		return;
+
+	if (!printk_ratelimit())
+		return;
+
+	pr_debug("\n");
+	pr_debug("do_page_fault() command='%s' type=%lu address=0x%08lx",
+	    tsk->comm, code, address);
+	print_vma_addr(KERN_CONT " in ", regs->iaoq[0]);
+	if (vma)
+		pr_debug(" vm_start = 0x%08lx, vm_end = 0x%08lx\n",
+				vma->vm_start, vma->vm_end);
+
+	show_regs(regs);
+}
+
 void do_page_fault(struct pt_regs *regs, unsigned long code,
 			      unsigned long address)
 {
@@ -270,16 +294,8 @@ bad_area:
 	if (user_mode(regs)) {
 		struct siginfo si;
 
-#ifdef PRINT_USER_FAULTS
-		printk(KERN_DEBUG "\n");
-		printk(KERN_DEBUG "do_page_fault() pid=%d command='%s' type=%lu address=0x%08lx\n",
-		    task_pid_nr(tsk), tsk->comm, code, address);
-		if (vma) {
-			printk(KERN_DEBUG "vm_start = 0x%08lx, vm_end = 0x%08lx\n",
-					vma->vm_start, vma->vm_end);
-		}
-		show_regs(regs);
-#endif
+		show_signal_msg(regs, code, address, tsk, vma);
+
 		switch (code) {
 		case 15:	/* Data TLB miss fault/Data page fault */
 			/* send SIGSEGV when outside of vma */
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Improve LWS-CAS performance
Date: Sun, 11 May 2014 18:40:50 -0400
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Cc: Helge Deller <deller@gmx.de>,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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The attached change significantly improves the performance of the LWS- 
CAS code in syscall.S.
This allows a number of packages to build (e.g., zeromq3, gtest and  
libxs) that previously failed because
slow LWS-CAS performance under contention.  In particular, interrupts  
taken while the lock was taken
degraded performance significantly.

The change does the following:

1) Disables interrupts around the CAS operation,
2) Removes the lock code on UP systems where it is not needed, and
3) Changes the loads and stores to use the ordered completer, "o", on
PA 2.0.  "o" and "ma" with a zero offset are equivalent.  The latter  
is accepted
on both PA 1.X and 2.0.

The use of ordered loads and stores probably makes no difference on  
all existing
hardware, but it seemed pedantically correct.  In particular, the CAS  
operation must
complete before LDCW lock is released.  As written before, a processor  
could reorder
the operations.

I don't believe the period interrupts are disabled is long enough to  
significantly
increase interrupt latency.  For example, the TLB insert code is  
longer.  Worst
case is a memory fault in the CAS operation.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
---



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diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index a63bb179..801ba08 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -589,12 +589,16 @@ cas_nocontend:
 # endif
 /* ENABLE_LWS_DEBUG */
 
+	rsm	PSW_SM_I, %r0				/* Disable interrupts */
+#ifdef CONFIG_SMP
 	LDCW	0(%sr2,%r20), %r28			/* Try to acquire the lock */
 	cmpb,<>,n	%r0, %r28, cas_action		/* Did we get it? */
 cas_wouldblock:
 	ldo	2(%r0), %r28				/* 2nd case */
+	ssm	PSW_SM_I, %r0
 	b	lws_exit				/* Contended... */
 	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
+#endif
 
 	/*
 		prev = *addr;
@@ -619,15 +623,19 @@ cas_action:
 	stw	%r1, 4(%sr2,%r20)
 #endif
 	/* The load and store could fail */
-1:	ldw	0(%sr3,%r26), %r28
+1:	ldw,ma	0(%sr3,%r26), %r28
 	sub,<>	%r28, %r25, %r0
-2:	stw	%r24, 0(%sr3,%r26)
+2:	stw,ma	%r24, 0(%sr3,%r26)
+#ifdef CONFIG_SMP
 	/* Free lock */
-	stw	%r20, 0(%sr2,%r20)
+	stw,ma	%r20, 0(%sr2,%r20)
+#endif
 #if ENABLE_LWS_DEBUG
 	/* Clear thread register indicator */
 	stw	%r0, 4(%sr2,%r20)
 #endif
+	/* Enable interrupts */
+	ssm	PSW_SM_I, %r0
 	/* Return to userspace, set no error */
 	b	lws_exit
 	copy	%r0, %r21
@@ -639,6 +647,7 @@ cas_action:
 #if ENABLE_LWS_DEBUG
 	stw	%r0, 4(%sr2,%r20)
 #endif
+	ssm	PSW_SM_I, %r0
 	b	lws_exit
 	ldo	-EFAULT(%r0),%r21	/* set errno */
 	nop

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Am Sonntag, 11. Mai 2014, 18:40:50 schrieb John David Anglin:
> The attached change significantly improves the performance of the LWS-
> CAS code in syscall.S.
> This allows a number of packages to build (e.g., zeromq3, gtest and
> libxs) that previously failed because
> slow LWS-CAS performance under contention.  In particular, interrupts
> taken while the lock was taken
> degraded performance significantly.

Sounds cool ;)

The label cas_wouldblock would now only be defined in SMP case, which looks 
odd. Since I can't find any references to it I think it should just be dropped.

Eike
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On 5/12/2014 2:11 AM, Rolf Eike Beer wrote:
> Am Sonntag, 11. Mai 2014, 18:40:50 schrieb John David Anglin:
>> The attached change significantly improves the performance of the LWS-
>> CAS code in syscall.S.
>> This allows a number of packages to build (e.g., zeromq3, gtest and
>> libxs) that previously failed because
>> slow LWS-CAS performance under contention.  In particular, interrupts
>> taken while the lock was taken
>> degraded performance significantly.
> Sounds cool ;)
>
> The label cas_wouldblock would now only be defined in SMP case, which looks
> odd. Since I can't find any references to it I think it should just be dropped.
I was aware when I sent the change that the label cas_wouldblock is not 
used.  Possibly, it should
change to a comment but maybe that's a separate cleanup.

Dave

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> On 5/12/2014 2:11 AM, Rolf Eike Beer wrote:
> > Am Sonntag, 11. Mai 2014, 18:40:50 schrieb John David Anglin:
> >> The attached change significantly improves the performance of the LWS-
> >> CAS code in syscall.S.
> >> This allows a number of packages to build (e.g., zeromq3, gtest and
> >> libxs) that previously failed because
> >> slow LWS-CAS performance under contention.  In particular, interrupts
> >> taken while the lock was taken
> >> degraded performance significantly.
> > Sounds cool ;)
> >
> > The label cas_wouldblock would now only be defined in SMP case, which looks
> > odd. Since I can't find any references to it I think it should just be dropped.

> I was aware when I sent the change that the label cas_wouldblock is not 
> used.  Possibly, it should change to a comment but maybe that's a separate cleanup.

I left it in when I pushed your patch to my git tree:
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/log/?h=for-next

I think it makes sense to leave it in because it makes this piece clear.
In addition I added CC to push it backwards into kernels 3.13 and 3.14 too.

Helge
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From: Ley Foon Tan <lftan@altera.com>
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Subject: [PATCH 17/25] parisc: Add 32 bit time_t and clock_t
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Override time_t and clock_t in include/uapi/asm-generic.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
---
 arch/parisc/include/uapi/asm/posix_types.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/parisc/include/uapi/asm/posix_types.h b/arch/parisc/include/uapi/asm/posix_types.h
index b934425..21fcf1c 100644
--- a/arch/parisc/include/uapi/asm/posix_types.h
+++ b/arch/parisc/include/uapi/asm/posix_types.h
@@ -19,6 +19,14 @@ typedef int			__kernel_suseconds_t;
 typedef long long		__kernel_off64_t;
 typedef unsigned long long	__kernel_ino64_t;
 
+#ifndef CONFIG_64BIT
+typedef long	__kernel_time_t;
+#define __kernel_time_t __kernel_time_t
+
+typedef long	__kernel_clock_t;
+#define __kernel_clock_t __kernel_clock_t
+#endif
+
 #include <asm-generic/posix_types.h>
 
 #endif
-- 
1.8.2.1


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To: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>,
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Hi Helge,

On 04/05/14 08:28, Helge Deller wrote:
> On 05/02/2014 04:48 PM, James Bottomley wrote:
>> On Fri, 2014-05-02 at 12:54 +0100, James Hogan wrote:
>>> On 01/05/14 18:50, James Bottomley wrote:
>>>>
>>>>> +
>>>>> +config MAX_STACK_SIZE_MB
>>>>> +	int "Maximum user stack size (MB)"
>>>>> +	default 80
>>>>> +	range 8 256 if METAG
>>>>> +	range 8 2048
>>>>> +	depends on STACK_GROWSUP
>>>>> +	help
>>>>> +	  This is the maximum stack size in Megabytes in the VM layout of user
>>>>> +	  processes when the stack grows upwards (currently only on parisc and
>>>>> +	  metag arch). The stack will be located at the highest memory address
>>>>> +	  minus the given value, unless the RLIMIT_STACK hard limit is changed
>>>>> +	  to a smaller value in which case that is used.
>>>>> +
>>>>> +	  A sane initial value is 80 MB.
>>>>
>>>> There's one final issue with this: placement of the stack only really
>>>> matters on 32 bits.  We have three expanding memory areas: stack, heap
>>>> and maps.  On 64 bits these are placed well separated from each other on
>>>> 64 bits, so an artificial limit like this doesn't matter.
>>>
>>> Does the following fixup diff look reasonable? It forces
>>> MAX_STACK_SIZE_MB to 1024 and hides the Kconfig option for 64BIT,
>>> effectively leaving the behaviour unchanged in that case.
>>>
>>> diff --git a/mm/Kconfig b/mm/Kconfig
>>> index e80075979530..b0307f737bd7 100644
>>> --- a/mm/Kconfig
>>> +++ b/mm/Kconfig
>>> @@ -583,7 +583,8 @@ config GENERIC_EARLY_IOREMAP
>>>  	bool
>>>
>>>  config MAX_STACK_SIZE_MB
>>> -	int "Maximum user stack size (MB)"
>>> +	int "Maximum user stack size (MB)" if !64BIT
>>> +	default 1024 if 64BIT
>>>  	default 80
>>>  	range 8 256 if METAG
>>>  	range 8 2048
>>
>> Yes, I think that's probably correct ... 
> 
> No, it's not correct.
> It will then choose then a 1GB stack for compat tasks on 64bit kernel.

Sorry for the delay (I had most of last week off sick and still catching
up).

That's a good point. It makes me think the best way to handle it is in a
new definition in asm/processor.h, maybe STACK_SIZE_MAX. Does something
like this look better? This patch isn't getting any cleaner
unfortunately.


>From 6ecb0392a3b670c4bf1641a6ec56f22427ca8b57 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
Date: Wed, 30 Apr 2014 23:26:02 +0200
Subject: [PATCH 1/1] parisc,metag: Do not hardcode maximum userspace stack
 size

This patch affects only architectures where the stack grows upwards
(currently parisc and metag only). On those do not hardcode the maximum
initial stack size to 1GB for 32-bit processes, but make it configurable
via a config option.

The main problem with the hardcoded stack size is, that we have two
memory regions which grow upwards: stack and heap. To keep most of the
memory available for heap in a flexmap memoy layout, it makes no sense
to hard allocate up to 1GB of the memory for stack which can't be used
as heap then.

This patch makes the stack size configurable and uses 80MB as default
value which has been in use during the last few years on parisc and
which didn't showed any problems yet.

This also fixes a BUG on metag if the RLIMIT_STACK hard limit is
increased beyond a safe value by root. E.g. when starting a process
after running "ulimit -H -s unlimited" it will then attempt to use a
stack size of the maximum 1GB which is far too big for metag's limited
user virtual address space (stack_top is usually 0x3ffff000):
BUG: failure at fs/exec.c:589/shift_arg_pages()!

Signed-off-by: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
Signed-off-by: James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: John David Anglin <dave.anglin-CzeTG9NwML0@public.gmane.org>
Cc: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org # only needed for >= v3.9 (arch/metag)
---
v3 (James Hogan):
 - fix so that 64-bit parisc processes still use the 1GB limit.
   CONFIG_STACK_GROWSUP arches should provide a STACK_SIZE_MAX in their
   asm/processor.h, and for parisc it depends on USER_WIDE_MODE (whether
   the current process is 64-bit).
v2 (James Hogan):
 - updated description to mention BUG on metag.
 - added custom range limit for METAG.
 - moved Kconfig symbol to mm/Kconfig and reworded.
 - fixed "matag" typo.
---
 arch/metag/include/asm/processor.h  |  2 ++
 arch/parisc/include/asm/processor.h |  5 +++++
 arch/parisc/kernel/sys_parisc.c     |  6 +++---
 fs/exec.c                           |  6 +++---
 mm/Kconfig                          | 15 +++++++++++++++
 5 files changed, 28 insertions(+), 6 deletions(-)

diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index f16477d1f571..a8a37477c66e 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -22,6 +22,8 @@
 /* Add an extra page of padding at the top of the stack for the guard page. */
 #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
 #define STACK_TOP_MAX	STACK_TOP
+/* Maximum virtual space for stack */
+#define STACK_SIZE_MAX	(CONFIG_MAX_STACK_SIZE_MB*1024*1024)

 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 198a86feb574..d951c9681ab3 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -55,6 +55,11 @@
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE

+/* Allow bigger stacks for 64-bit processes */
+#define STACK_SIZE_MAX	(USER_WIDE_MODE					\
+			 ? (1 << 30)	/* 1 GB */			\
+			 : (CONFIG_MAX_STACK_SIZE_MB*1024*1024))
+
 #endif

 #ifndef __ASSEMBLY__
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 31ffa9b55322..e1ffea2f9a0b 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -72,10 +72,10 @@ static unsigned long mmap_upper_limit(void)
 {
 	unsigned long stack_base;

-	/* Limit stack size to 1GB - see setup_arg_pages() in fs/exec.c */
+	/* Limit stack size - see setup_arg_pages() in fs/exec.c */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;

 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }
diff --git a/fs/exec.c b/fs/exec.c
index 476f3ebf437e..238b7aa26f68 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -657,10 +657,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	unsigned long rlim_stack;

 #ifdef CONFIG_STACK_GROWSUP
-	/* Limit stack size to 1GB */
+	/* Limit stack size */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;

 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
diff --git a/mm/Kconfig b/mm/Kconfig
index ebe5880c29d6..1b5a95f0fa01 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -581,3 +581,18 @@ config PGTABLE_MAPPING

 config GENERIC_EARLY_IOREMAP
 	bool
+
+config MAX_STACK_SIZE_MB
+	int "Maximum user stack size for 32-bit processes (MB)"
+	default 80
+	range 8 256 if METAG
+	range 8 2048
+	depends on STACK_GROWSUP && (!64BIT || COMPAT)
+	help
+	  This is the maximum stack size in Megabytes in the VM layout of 32-bit
+	  user processes when the stack grows upwards (currently only on parisc
+	  and metag arch). The stack will be located at the highest memory
+	  address minus the given value, unless the RLIMIT_STACK hard limit is
+	  changed to a smaller value in which case that is used.
+
+	  A sane initial value is 80 MB.
-- 
1.9.3

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From - Thu Nov 08 21:10:19 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.metag
Subject: Re: [PATCH] parisc,metag: Do not hardcode maximum userspace stack
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	John David Anglin <dave.anglin@bell.net>,
	linux-metag@vger.kernel.org
To: James Hogan <james.hogan@imgtec.com>,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi James,

On 05/13/2014 01:18 PM, James Hogan wrote:
> On 04/05/14 08:28, Helge Deller wrote:
>> On 05/02/2014 04:48 PM, James Bottomley wrote:
>>> On Fri, 2014-05-02 at 12:54 +0100, James Hogan wrote:
>>>> On 01/05/14 18:50, James Bottomley wrote:
>>>>>
>>>>>> +config MAX_STACK_SIZE_MB
>>>>>> +	int "Maximum user stack size (MB)"
>>>>>> +	default 80
>>>>>> +	range 8 256 if METAG
>>>>>> +	range 8 2048
>>>>>> +	depends on STACK_GROWSUP
>>>>>> +	help
>>>>>> +	  This is the maximum stack size in Megabytes in the VM layout of user
>>>>>> +	  processes when the stack grows upwards (currently only on parisc and
>>>>>> +	  metag arch). The stack will be located at the highest memory address
>>>>>> +	  minus the given value, unless the RLIMIT_STACK hard limit is changed
>>>>>> +	  to a smaller value in which case that is used.
>>>>>> +
>>>>>> +	  A sane initial value is 80 MB.
>>>>>
>>>>> There's one final issue with this: placement of the stack only really
>>>>> matters on 32 bits.  We have three expanding memory areas: stack, heap
>>>>> and maps.  On 64 bits these are placed well separated from each other on
>>>>> 64 bits, so an artificial limit like this doesn't matter.
>>>>
>>>> Does the following fixup diff look reasonable? It forces
>>>> MAX_STACK_SIZE_MB to 1024 and hides the Kconfig option for 64BIT,
>>>> effectively leaving the behaviour unchanged in that case.
>>>>
>>>> diff --git a/mm/Kconfig b/mm/Kconfig
>>>> index e80075979530..b0307f737bd7 100644
>>>> --- a/mm/Kconfig
>>>> +++ b/mm/Kconfig
>>>> @@ -583,7 +583,8 @@ config GENERIC_EARLY_IOREMAP
>>>>  	bool
>>>>
>>>>  config MAX_STACK_SIZE_MB
>>>> -	int "Maximum user stack size (MB)"
>>>> +	int "Maximum user stack size (MB)" if !64BIT
>>>> +	default 1024 if 64BIT
>>>>  	default 80
>>>>  	range 8 256 if METAG
>>>>  	range 8 2048
>>>
>>> Yes, I think that's probably correct ... 
>>
>> No, it's not correct.
>> It will then choose then a 1GB stack for compat tasks on 64bit kernel.
> 
> Sorry for the delay (I had most of last week off sick and still catching
> up).

No problem.
 
> That's a good point. It makes me think the best way to handle it is in a
> new definition in asm/processor.h, maybe STACK_SIZE_MAX. Does something
> like this look better? This patch isn't getting any cleaner
> unfortunately.


Yes, it's correct now.
Just tested it. Thanks!

Another problem:
I think you wanted to get it backported into older kernels?
It seems the changes to mm/Kconfig will not apply cleanly to 3.14 or lower,
and the changes to arch/parisc/kernel/sys_parisc.c will not apply to 3.13 or lower...

Maybe cleaning up the patch to apply cleanly to 3.14 would make sense
and ignore older kernels?

Helge


> From 6ecb0392a3b670c4bf1641a6ec56f22427ca8b57 Mon Sep 17 00:00:00 2001
> From: Helge Deller <deller@gmx.de>
> Date: Wed, 30 Apr 2014 23:26:02 +0200
> Subject: [PATCH 1/1] parisc,metag: Do not hardcode maximum userspace stack
>  size
> 
> This patch affects only architectures where the stack grows upwards
> (currently parisc and metag only). On those do not hardcode the maximum
> initial stack size to 1GB for 32-bit processes, but make it configurable
> via a config option.
> 
> The main problem with the hardcoded stack size is, that we have two
> memory regions which grow upwards: stack and heap. To keep most of the
> memory available for heap in a flexmap memoy layout, it makes no sense
> to hard allocate up to 1GB of the memory for stack which can't be used
> as heap then.
> 
> This patch makes the stack size configurable and uses 80MB as default
> value which has been in use during the last few years on parisc and
> which didn't showed any problems yet.
> 
> This also fixes a BUG on metag if the RLIMIT_STACK hard limit is
> increased beyond a safe value by root. E.g. when starting a process
> after running "ulimit -H -s unlimited" it will then attempt to use a
> stack size of the maximum 1GB which is far too big for metag's limited
> user virtual address space (stack_top is usually 0x3ffff000):
> BUG: failure at fs/exec.c:589/shift_arg_pages()!
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> Signed-off-by: James Hogan <james.hogan@imgtec.com>
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-metag@vger.kernel.org
> Cc: John David Anglin <dave.anglin@bell.net>
> Cc: stable@vger.kernel.org # only needed for >= v3.9 (arch/metag)
> ---
> v3 (James Hogan):
>  - fix so that 64-bit parisc processes still use the 1GB limit.
>    CONFIG_STACK_GROWSUP arches should provide a STACK_SIZE_MAX in their
>    asm/processor.h, and for parisc it depends on USER_WIDE_MODE (whether
>    the current process is 64-bit).
> v2 (James Hogan):
>  - updated description to mention BUG on metag.
>  - added custom range limit for METAG.
>  - moved Kconfig symbol to mm/Kconfig and reworded.
>  - fixed "matag" typo.
> ---
>  arch/metag/include/asm/processor.h  |  2 ++
>  arch/parisc/include/asm/processor.h |  5 +++++
>  arch/parisc/kernel/sys_parisc.c     |  6 +++---
>  fs/exec.c                           |  6 +++---
>  mm/Kconfig                          | 15 +++++++++++++++
>  5 files changed, 28 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
> index f16477d1f571..a8a37477c66e 100644
> --- a/arch/metag/include/asm/processor.h
> +++ b/arch/metag/include/asm/processor.h
> @@ -22,6 +22,8 @@
>  /* Add an extra page of padding at the top of the stack for the guard page. */
>  #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
>  #define STACK_TOP_MAX	STACK_TOP
> +/* Maximum virtual space for stack */
> +#define STACK_SIZE_MAX	(CONFIG_MAX_STACK_SIZE_MB*1024*1024)
> 
>  /* This decides where the kernel will search for a free chunk of vm
>   * space during mmap's.
> diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
> index 198a86feb574..d951c9681ab3 100644
> --- a/arch/parisc/include/asm/processor.h
> +++ b/arch/parisc/include/asm/processor.h
> @@ -55,6 +55,11 @@
>  #define STACK_TOP	TASK_SIZE
>  #define STACK_TOP_MAX	DEFAULT_TASK_SIZE
> 
> +/* Allow bigger stacks for 64-bit processes */
> +#define STACK_SIZE_MAX	(USER_WIDE_MODE					\
> +			 ? (1 << 30)	/* 1 GB */			\
> +			 : (CONFIG_MAX_STACK_SIZE_MB*1024*1024))
> +
>  #endif
> 
>  #ifndef __ASSEMBLY__
> diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
> index 31ffa9b55322..e1ffea2f9a0b 100644
> --- a/arch/parisc/kernel/sys_parisc.c
> +++ b/arch/parisc/kernel/sys_parisc.c
> @@ -72,10 +72,10 @@ static unsigned long mmap_upper_limit(void)
>  {
>  	unsigned long stack_base;
> 
> -	/* Limit stack size to 1GB - see setup_arg_pages() in fs/exec.c */
> +	/* Limit stack size - see setup_arg_pages() in fs/exec.c */
>  	stack_base = rlimit_max(RLIMIT_STACK);
> -	if (stack_base > (1 << 30))
> -		stack_base = 1 << 30;
> +	if (stack_base > STACK_SIZE_MAX)
> +		stack_base = STACK_SIZE_MAX;
> 
>  	return PAGE_ALIGN(STACK_TOP - stack_base);
>  }
> diff --git a/fs/exec.c b/fs/exec.c
> index 476f3ebf437e..238b7aa26f68 100644
> --- a/fs/exec.c
> +++ b/fs/exec.c
> @@ -657,10 +657,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
>  	unsigned long rlim_stack;
> 
>  #ifdef CONFIG_STACK_GROWSUP
> -	/* Limit stack size to 1GB */
> +	/* Limit stack size */
>  	stack_base = rlimit_max(RLIMIT_STACK);
> -	if (stack_base > (1 << 30))
> -		stack_base = 1 << 30;
> +	if (stack_base > STACK_SIZE_MAX)
> +		stack_base = STACK_SIZE_MAX;
> 
>  	/* Make sure we didn't let the argument array grow too large. */
>  	if (vma->vm_end - vma->vm_start > stack_base)
> diff --git a/mm/Kconfig b/mm/Kconfig
> index ebe5880c29d6..1b5a95f0fa01 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -581,3 +581,18 @@ config PGTABLE_MAPPING
> 
>  config GENERIC_EARLY_IOREMAP
>  	bool
> +
> +config MAX_STACK_SIZE_MB
> +	int "Maximum user stack size for 32-bit processes (MB)"
> +	default 80
> +	range 8 256 if METAG
> +	range 8 2048
> +	depends on STACK_GROWSUP && (!64BIT || COMPAT)
> +	help
> +	  This is the maximum stack size in Megabytes in the VM layout of 32-bit
> +	  user processes when the stack grows upwards (currently only on parisc
> +	  and metag arch). The stack will be located at the highest memory
> +	  address minus the given value, unless the RLIMIT_STACK hard limit is
> +	  changed to a smaller value in which case that is used.
> +
> +	  A sane initial value is 80 MB.
> 

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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH 17/25] parisc: Add 32 bit time_t and clock_t
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	linux-parisc@vger.kernel.org
To: Ley Foon Tan <lftan@altera.com>, linux-arch@vger.kernel.org,
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Hi Ley,

On 05/13/2014 11:06 AM, Ley Foon Tan wrote:
> Override time_t and clock_t in include/uapi/asm-generic.
> 
> Signed-off-by: Ley Foon Tan <lftan@altera.com>
> ---
>  arch/parisc/include/uapi/asm/posix_types.h | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/arch/parisc/include/uapi/asm/posix_types.h b/arch/parisc/include/uapi/asm/posix_types.h
> index b934425..21fcf1c 100644
> --- a/arch/parisc/include/uapi/asm/posix_types.h
> +++ b/arch/parisc/include/uapi/asm/posix_types.h
> @@ -19,6 +19,14 @@ typedef int			__kernel_suseconds_t;
>  typedef long long		__kernel_off64_t;
>  typedef unsigned long long	__kernel_ino64_t;
>  
> +#ifndef CONFIG_64BIT

We can't use CONFIG_64BIT for a userspace header file. Please use 
#if !defined(__LP64__)
instead.
But even then I'm not sure if it's all correct...

Helge 

> +typedef long	__kernel_time_t;
> +#define __kernel_time_t __kernel_time_t
> +
> +typedef long	__kernel_clock_t;
> +#define __kernel_clock_t __kernel_clock_t
> +#endif
> +
>  #include <asm-generic/posix_types.h>
>  
>  #endif
> 


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From: James Hogan <james.hogan@imgtec.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.metag
Subject: Re: [PATCH] parisc,metag: Do not hardcode maximum userspace stack
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	<linux-metag@vger.kernel.org>
To: Helge Deller <deller@gmx.de>,
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Hi Helge,

On 13/05/14 20:45, Helge Deller wrote:
> On 05/13/2014 01:18 PM, James Hogan wrote:
>> On 04/05/14 08:28, Helge Deller wrote:
>>> On 05/02/2014 04:48 PM, James Bottomley wrote:
>>>> On Fri, 2014-05-02 at 12:54 +0100, James Hogan wrote:
>>>>> On 01/05/14 18:50, James Bottomley wrote:
>>>>>>
>>>>>>> +config MAX_STACK_SIZE_MB
>>>>>>> +	int "Maximum user stack size (MB)"
>>>>>>> +	default 80
>>>>>>> +	range 8 256 if METAG
>>>>>>> +	range 8 2048
>>>>>>> +	depends on STACK_GROWSUP
>>>>>>> +	help
>>>>>>> +	  This is the maximum stack size in Megabytes in the VM layout of user
>>>>>>> +	  processes when the stack grows upwards (currently only on parisc and
>>>>>>> +	  metag arch). The stack will be located at the highest memory address
>>>>>>> +	  minus the given value, unless the RLIMIT_STACK hard limit is changed
>>>>>>> +	  to a smaller value in which case that is used.
>>>>>>> +
>>>>>>> +	  A sane initial value is 80 MB.
>>>>>>
>>>>>> There's one final issue with this: placement of the stack only really
>>>>>> matters on 32 bits.  We have three expanding memory areas: stack, heap
>>>>>> and maps.  On 64 bits these are placed well separated from each other on
>>>>>> 64 bits, so an artificial limit like this doesn't matter.
>>>>>
>>>>> Does the following fixup diff look reasonable? It forces
>>>>> MAX_STACK_SIZE_MB to 1024 and hides the Kconfig option for 64BIT,
>>>>> effectively leaving the behaviour unchanged in that case.
>>>>>
>>>>> diff --git a/mm/Kconfig b/mm/Kconfig
>>>>> index e80075979530..b0307f737bd7 100644
>>>>> --- a/mm/Kconfig
>>>>> +++ b/mm/Kconfig
>>>>> @@ -583,7 +583,8 @@ config GENERIC_EARLY_IOREMAP
>>>>>  	bool
>>>>>
>>>>>  config MAX_STACK_SIZE_MB
>>>>> -	int "Maximum user stack size (MB)"
>>>>> +	int "Maximum user stack size (MB)" if !64BIT
>>>>> +	default 1024 if 64BIT
>>>>>  	default 80
>>>>>  	range 8 256 if METAG
>>>>>  	range 8 2048
>>>>
>>>> Yes, I think that's probably correct ... 
>>>
>>> No, it's not correct.
>>> It will then choose then a 1GB stack for compat tasks on 64bit kernel.
>>
>> Sorry for the delay (I had most of last week off sick and still catching
>> up).
> 
> No problem.
>  
>> That's a good point. It makes me think the best way to handle it is in a
>> new definition in asm/processor.h, maybe STACK_SIZE_MAX. Does something
>> like this look better? This patch isn't getting any cleaner
>> unfortunately.
> 
> 
> Yes, it's correct now.
> Just tested it. Thanks!

Thanks.

> Another problem:
> I think you wanted to get it backported into older kernels?

Yeh, back to v3.9 ideally.

> It seems the changes to mm/Kconfig will not apply cleanly to 3.14 or lower,

Hmm, I guess the patch could be split easily though such that METAG
always defined STACK_SIZE_MAX as 256MB and parisc always as 1GB (i.e.
minimal fix for metag without actually changing any stack sizes), then
have a second patch (not for stable) to make it match the v3 patch.

I'll try that (I probably should have done that in the first place).

Thanks
James

> and the changes to arch/parisc/kernel/sys_parisc.c will not apply to 3.13 or lower...
> 
> Maybe cleaning up the patch to apply cleanly to 3.14 would make sense
> and ignore older kernels?
> 
> Helge
> 
> 
>> From 6ecb0392a3b670c4bf1641a6ec56f22427ca8b57 Mon Sep 17 00:00:00 2001
>> From: Helge Deller <deller@gmx.de>
>> Date: Wed, 30 Apr 2014 23:26:02 +0200
>> Subject: [PATCH 1/1] parisc,metag: Do not hardcode maximum userspace stack
>>  size
>>
>> This patch affects only architectures where the stack grows upwards
>> (currently parisc and metag only). On those do not hardcode the maximum
>> initial stack size to 1GB for 32-bit processes, but make it configurable
>> via a config option.
>>
>> The main problem with the hardcoded stack size is, that we have two
>> memory regions which grow upwards: stack and heap. To keep most of the
>> memory available for heap in a flexmap memoy layout, it makes no sense
>> to hard allocate up to 1GB of the memory for stack which can't be used
>> as heap then.
>>
>> This patch makes the stack size configurable and uses 80MB as default
>> value which has been in use during the last few years on parisc and
>> which didn't showed any problems yet.
>>
>> This also fixes a BUG on metag if the RLIMIT_STACK hard limit is
>> increased beyond a safe value by root. E.g. when starting a process
>> after running "ulimit -H -s unlimited" it will then attempt to use a
>> stack size of the maximum 1GB which is far too big for metag's limited
>> user virtual address space (stack_top is usually 0x3ffff000):
>> BUG: failure at fs/exec.c:589/shift_arg_pages()!
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>> Signed-off-by: James Hogan <james.hogan@imgtec.com>
>> Cc: linux-parisc@vger.kernel.org
>> Cc: linux-metag@vger.kernel.org
>> Cc: John David Anglin <dave.anglin@bell.net>
>> Cc: stable@vger.kernel.org # only needed for >= v3.9 (arch/metag)
>> ---
>> v3 (James Hogan):
>>  - fix so that 64-bit parisc processes still use the 1GB limit.
>>    CONFIG_STACK_GROWSUP arches should provide a STACK_SIZE_MAX in their
>>    asm/processor.h, and for parisc it depends on USER_WIDE_MODE (whether
>>    the current process is 64-bit).
>> v2 (James Hogan):
>>  - updated description to mention BUG on metag.
>>  - added custom range limit for METAG.
>>  - moved Kconfig symbol to mm/Kconfig and reworded.
>>  - fixed "matag" typo.
>> ---
>>  arch/metag/include/asm/processor.h  |  2 ++
>>  arch/parisc/include/asm/processor.h |  5 +++++
>>  arch/parisc/kernel/sys_parisc.c     |  6 +++---
>>  fs/exec.c                           |  6 +++---
>>  mm/Kconfig                          | 15 +++++++++++++++
>>  5 files changed, 28 insertions(+), 6 deletions(-)
>>
>> diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
>> index f16477d1f571..a8a37477c66e 100644
>> --- a/arch/metag/include/asm/processor.h
>> +++ b/arch/metag/include/asm/processor.h
>> @@ -22,6 +22,8 @@
>>  /* Add an extra page of padding at the top of the stack for the guard page. */
>>  #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
>>  #define STACK_TOP_MAX	STACK_TOP
>> +/* Maximum virtual space for stack */
>> +#define STACK_SIZE_MAX	(CONFIG_MAX_STACK_SIZE_MB*1024*1024)
>>
>>  /* This decides where the kernel will search for a free chunk of vm
>>   * space during mmap's.
>> diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
>> index 198a86feb574..d951c9681ab3 100644
>> --- a/arch/parisc/include/asm/processor.h
>> +++ b/arch/parisc/include/asm/processor.h
>> @@ -55,6 +55,11 @@
>>  #define STACK_TOP	TASK_SIZE
>>  #define STACK_TOP_MAX	DEFAULT_TASK_SIZE
>>
>> +/* Allow bigger stacks for 64-bit processes */
>> +#define STACK_SIZE_MAX	(USER_WIDE_MODE					\
>> +			 ? (1 << 30)	/* 1 GB */			\
>> +			 : (CONFIG_MAX_STACK_SIZE_MB*1024*1024))
>> +
>>  #endif
>>
>>  #ifndef __ASSEMBLY__
>> diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
>> index 31ffa9b55322..e1ffea2f9a0b 100644
>> --- a/arch/parisc/kernel/sys_parisc.c
>> +++ b/arch/parisc/kernel/sys_parisc.c
>> @@ -72,10 +72,10 @@ static unsigned long mmap_upper_limit(void)
>>  {
>>  	unsigned long stack_base;
>>
>> -	/* Limit stack size to 1GB - see setup_arg_pages() in fs/exec.c */
>> +	/* Limit stack size - see setup_arg_pages() in fs/exec.c */
>>  	stack_base = rlimit_max(RLIMIT_STACK);
>> -	if (stack_base > (1 << 30))
>> -		stack_base = 1 << 30;
>> +	if (stack_base > STACK_SIZE_MAX)
>> +		stack_base = STACK_SIZE_MAX;
>>
>>  	return PAGE_ALIGN(STACK_TOP - stack_base);
>>  }
>> diff --git a/fs/exec.c b/fs/exec.c
>> index 476f3ebf437e..238b7aa26f68 100644
>> --- a/fs/exec.c
>> +++ b/fs/exec.c
>> @@ -657,10 +657,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
>>  	unsigned long rlim_stack;
>>
>>  #ifdef CONFIG_STACK_GROWSUP
>> -	/* Limit stack size to 1GB */
>> +	/* Limit stack size */
>>  	stack_base = rlimit_max(RLIMIT_STACK);
>> -	if (stack_base > (1 << 30))
>> -		stack_base = 1 << 30;
>> +	if (stack_base > STACK_SIZE_MAX)
>> +		stack_base = STACK_SIZE_MAX;
>>
>>  	/* Make sure we didn't let the argument array grow too large. */
>>  	if (vma->vm_end - vma->vm_start > stack_base)
>> diff --git a/mm/Kconfig b/mm/Kconfig
>> index ebe5880c29d6..1b5a95f0fa01 100644
>> --- a/mm/Kconfig
>> +++ b/mm/Kconfig
>> @@ -581,3 +581,18 @@ config PGTABLE_MAPPING
>>
>>  config GENERIC_EARLY_IOREMAP
>>  	bool
>> +
>> +config MAX_STACK_SIZE_MB
>> +	int "Maximum user stack size for 32-bit processes (MB)"
>> +	default 80
>> +	range 8 256 if METAG
>> +	range 8 2048
>> +	depends on STACK_GROWSUP && (!64BIT || COMPAT)
>> +	help
>> +	  This is the maximum stack size in Megabytes in the VM layout of 32-bit
>> +	  user processes when the stack grows upwards (currently only on parisc
>> +	  and metag arch). The stack will be located at the highest memory
>> +	  address minus the given value, unless the RLIMIT_STACK hard limit is
>> +	  changed to a smaller value in which case that is used.
>> +
>> +	  A sane initial value is 80 MB.
>>
> 
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	Chung-Lin Tang <cltang@codesourcery.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	linux-parisc@vger.kernel.org
To: Helge Deller <deller@gmx.de>
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On Wed, May 14, 2014 at 4:17 AM, Helge Deller <deller@gmx.de> wrote:
> Hi Ley,
>
> On 05/13/2014 11:06 AM, Ley Foon Tan wrote:
>> Override time_t and clock_t in include/uapi/asm-generic.
>>
>> Signed-off-by: Ley Foon Tan <lftan@altera.com>
>> ---
>>  arch/parisc/include/uapi/asm/posix_types.h | 8 ++++++++
>>  1 file changed, 8 insertions(+)
>>
>> diff --git a/arch/parisc/include/uapi/asm/posix_types.h b/arch/parisc/include/uapi/asm/posix_types.h
>> index b934425..21fcf1c 100644
>> --- a/arch/parisc/include/uapi/asm/posix_types.h
>> +++ b/arch/parisc/include/uapi/asm/posix_types.h
>> @@ -19,6 +19,14 @@ typedef int                        __kernel_suseconds_t;
>>  typedef long long            __kernel_off64_t;
>>  typedef unsigned long long   __kernel_ino64_t;
>>
>> +#ifndef CONFIG_64BIT
>
> We can't use CONFIG_64BIT for a userspace header file. Please use
> #if !defined(__LP64__)
> instead.
> But even then I'm not sure if it's all correct...
Okay, will change to this. Maybe can try compile and boot with this change.

Thanks.
Regards
Ley Foon

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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: [PATCH] parisc: Improve LWS-CAS performance
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Cc: linux-parisc List <linux-parisc@vger.kernel.org>,
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To: John David Anglin <dave.anglin@bell.net>
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On Sun, May 11, 2014 at 6:40 PM, John David Anglin <dave.anglin@bell.net> wrote:
> The attached change significantly improves the performance of the LWS-CAS
> code in syscall.S.
> This allows a number of packages to build (e.g., zeromq3, gtest and libxs)
> that previously failed because
> slow LWS-CAS performance under contention.  In particular, interrupts taken
> while the lock was taken
> degraded performance significantly.
>
> The change does the following:
>
> 1) Disables interrupts around the CAS operation,

OK.

> 2) Removes the lock code on UP systems where it is not needed, and

This is wrong. The locking was originally only for SMP, but at one
point it was discovered that you could COW during the CAS operation
and if you didn't take the lock in UP, you could re-enter the CAS via
another task and thus incorrectly carry out the CAS in two different
threads and corrupt the state. While we attempt our best to prevent
the task running the CAS from being scheduled off, the COW operation
trap and subsequent scheduling is not something I could find an easy
way to prevent. Therefore the solution was to use locks for both UP
and SMP.

> 3) Changes the loads and stores to use the ordered completer, "o", on
> PA 2.0.  "o" and "ma" with a zero offset are equivalent.  The latter is
> accepted
> on both PA 1.X and 2.0.
>
> The use of ordered loads and stores probably makes no difference on all
> existing
> hardware, but it seemed pedantically correct.  In particular, the CAS
> operation must
> complete before LDCW lock is released.  As written before, a processor could
> reorder
> the operations.

Agreed.

> I don't believe the period interrupts are disabled is long enough to
> significantly
> increase interrupt latency.  For example, the TLB insert code is longer.
> Worst
> case is a memory fault in the CAS operation.

The worst case is actually a COW during the write of the CAS? The
interrupts would be disabled until the kernel turned them back on in
another code path.


Cheers,
Carlos.
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH v4 0/4] metag,parisc: Stack limit patches
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Patch 1 is a metag bug fix for v3.15 & stable.

Patch 2 depends on patch 1, and makes the stack limit configurable.
Helge: I don't object if you want to take this patch yourself since it
was originally yours, so long as it goes after patch 1 (which I'll try
and get into v3.15-rc6).

Patch 3 depends on patch 1, and removes the RLIMIT_STACK default value
for metag. I'll take this through metag tree for v3.16.

Patch 4 depends on patch 3 and the corresponding parisc patch and
removes the ability to override the default hard RLIMIT_STACK. Depending
on when the parisc patch reaches mainline I'll try and get this in for
v3.16.

Helge Deller (1):
  parisc,metag: Do not hardcode maximum userspace stack size

James Hogan (3):
  metag: Reduce maximum stack size to 256MB
  metag: Remove _STK_LIM_MAX override
  asm-generic: remove _STK_LIM_MAX

 arch/metag/include/asm/processor.h     |  2 ++
 arch/metag/include/uapi/asm/Kbuild     |  2 +-
 arch/metag/include/uapi/asm/resource.h |  7 -------
 arch/parisc/include/asm/processor.h    |  5 +++++
 arch/parisc/kernel/sys_parisc.c        |  6 +++---
 fs/exec.c                              |  6 +++---
 include/asm-generic/resource.h         |  2 +-
 include/uapi/asm-generic/resource.h    |  7 -------
 mm/Kconfig                             | 15 +++++++++++++++
 9 files changed, 30 insertions(+), 22 deletions(-)
 delete mode 100644 arch/metag/include/uapi/asm/resource.h

Cc: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
Cc: "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
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Subject: [PATCH v4 2/4] parisc,metag: Do not hardcode maximum userspace stack size
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From: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>

This patch affects only architectures where the stack grows upwards
(currently parisc and metag only). On those do not hardcode the maximum
initial stack size to 1GB for 32-bit processes, but make it configurable
via a config option.

The main problem with the hardcoded stack size is, that we have two
memory regions which grow upwards: stack and heap. To keep most of the
memory available for heap in a flexmap memory layout, it makes no sense
to hard allocate up to 1GB of the memory for stack which can't be used
as heap then.

This patch makes the stack size for 32-bit processes configurable and
uses 80MB as default value which has been in use during the last few
years on parisc and which hasn't showed any problems yet.

Signed-off-by: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
Signed-off-by: James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
Cc: "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: John David Anglin <dave.anglin-CzeTG9NwML0@public.gmane.org>
---
v4 (James Hogan):
 - split out the metag stable fix, otherwise identical.
v3 (James Hogan):
 - fix so that 64-bit parisc processes still use the 1GB limit.
   CONFIG_STACK_GROWSUP arches should provide a STACK_SIZE_MAX in their
   asm/processor.h, and for parisc it depends on USER_WIDE_MODE (whether
   the current process is 64-bit).
v2 (James Hogan):
 - updated description to mention BUG on metag.
 - added custom range limit for METAG.
 - moved Kconfig symbol to mm/Kconfig and reworded.
 - fixed "matag" typo.
---
 arch/metag/include/asm/processor.h  |  2 +-
 arch/parisc/include/asm/processor.h |  5 ++++-
 arch/parisc/kernel/sys_parisc.c     |  6 +++---
 mm/Kconfig                          | 15 +++++++++++++++
 4 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index 3be8581af495..a8a37477c66e 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -23,7 +23,7 @@
 #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
 #define STACK_TOP_MAX	STACK_TOP
 /* Maximum virtual space for stack */
-#define STACK_SIZE_MAX	(1 << 28)	/* 256 MB */
+#define STACK_SIZE_MAX	(CONFIG_MAX_STACK_SIZE_MB*1024*1024)
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 86522ef09d52..d951c9681ab3 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -55,7 +55,10 @@
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
-#define STACK_SIZE_MAX	(1 << 30)	/* 1 GB */
+/* Allow bigger stacks for 64-bit processes */
+#define STACK_SIZE_MAX	(USER_WIDE_MODE					\
+			 ? (1 << 30)	/* 1 GB */			\
+			 : (CONFIG_MAX_STACK_SIZE_MB*1024*1024))
 
 #endif
 
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 31ffa9b55322..e1ffea2f9a0b 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -72,10 +72,10 @@ static unsigned long mmap_upper_limit(void)
 {
 	unsigned long stack_base;
 
-	/* Limit stack size to 1GB - see setup_arg_pages() in fs/exec.c */
+	/* Limit stack size - see setup_arg_pages() in fs/exec.c */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;
 
 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }
diff --git a/mm/Kconfig b/mm/Kconfig
index ebe5880c29d6..1b5a95f0fa01 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -581,3 +581,18 @@ config PGTABLE_MAPPING
 
 config GENERIC_EARLY_IOREMAP
 	bool
+
+config MAX_STACK_SIZE_MB
+	int "Maximum user stack size for 32-bit processes (MB)"
+	default 80
+	range 8 256 if METAG
+	range 8 2048
+	depends on STACK_GROWSUP && (!64BIT || COMPAT)
+	help
+	  This is the maximum stack size in Megabytes in the VM layout of 32-bit
+	  user processes when the stack grows upwards (currently only on parisc
+	  and metag arch). The stack will be located at the highest memory
+	  address minus the given value, unless the RLIMIT_STACK hard limit is
+	  changed to a smaller value in which case that is used.
+
+	  A sane initial value is 80 MB.
-- 
1.9.3

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From: Richard Weinberger <richard@nod.at>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH 19/27] parisc: Use common bits from generic tlb.h
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It is no longer needed to define them on our own.

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Richard Weinberger <richard@nod.at>
Cc: linux-parisc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/parisc/include/asm/tlb.h | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/parisc/include/asm/tlb.h b/arch/parisc/include/asm/tlb.h
index 0792490..4e231b1 100644
--- a/arch/parisc/include/asm/tlb.h
+++ b/arch/parisc/include/asm/tlb.h
@@ -16,12 +16,6 @@ do {	if (!(tlb)->fullmm)	\
 		flush_tlb_range(vma, vma->vm_start, vma->vm_end); \
 } while (0)
 
-#define __tlb_remove_tlb_entry(tlb, pte, address) \
-	do { } while (0)
-
 #include <asm-generic/tlb.h>
 
-#define __pmd_free_tlb(tlb, pmd, addr)	pmd_free((tlb)->mm, pmd)
-#define __pte_free_tlb(tlb, pte, addr)	pte_free((tlb)->mm, pte)
-
 #endif
-- 
1.8.4.2


From - Thu Nov 08 21:10:19 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: Improve LWS-CAS performance
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Cc: linux-parisc List <linux-parisc@vger.kernel.org>,
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To: Carlos O'Donell <carlos@systemhalted.org>,
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On 05/14/2014 05:31 AM, Carlos O'Donell wrote:
> On Sun, May 11, 2014 at 6:40 PM, John David Anglin <dave.anglin@bell.net> wrote:
>> 2) Removes the lock code on UP systems where it is not needed, and
> 
> This is wrong. The locking was originally only for SMP, but at one
> point it was discovered that you could COW during the CAS operation
> and if you didn't take the lock in UP, you could re-enter the CAS via
> another task and thus incorrectly carry out the CAS in two different
> threads and corrupt the state. While we attempt our best to prevent
> the task running the CAS from being scheduled off, the COW operation
> trap and subsequent scheduling is not something I could find an easy
> way to prevent. Therefore the solution was to use locks for both UP
> and SMP.

If so, could one of you please send an updated patch to the list...?
Currently I've scheduled http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=for-next&id=f4030047d92c79344ac4ca6ad4c6e3e22ceb5a55
for inclusion into the next kernel (hopefully 3.15).

Helge
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Subject: Re: [PATCH v4 0/4] metag,parisc: Stack limit patches
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Hi James,

On 05/14/2014 02:52 PM, James Hogan wrote:
> Patch 1 is a metag bug fix for v3.15 & stable.
> 
> Patch 2 depends on patch 1, and makes the stack limit configurable.
> Helge: I don't object if you want to take this patch yourself since it
> was originally yours, so long as it goes after patch 1 (which I'll try
> and get into v3.15-rc6).

Thanks for cleaning it up!
I'd really prefer if you could push the whole series through your tree.
That way you can easily ensure the correct sequence.
IMHO, it would be nice if all four patches would still go into 3.15, esp.
since it affects our platforms (parisc & metag) only.

Helge

> 
> Patch 3 depends on patch 1, and removes the RLIMIT_STACK default value
> for metag. I'll take this through metag tree for v3.16.
> 
> Patch 4 depends on patch 3 and the corresponding parisc patch and
> removes the ability to override the default hard RLIMIT_STACK. Depending
> on when the parisc patch reaches mainline I'll try and get this in for
> v3.16.
> 
> Helge Deller (1):
>   parisc,metag: Do not hardcode maximum userspace stack size
> 
> James Hogan (3):
>   metag: Reduce maximum stack size to 256MB
>   metag: Remove _STK_LIM_MAX override
>   asm-generic: remove _STK_LIM_MAX
> 
>  arch/metag/include/asm/processor.h     |  2 ++
>  arch/metag/include/uapi/asm/Kbuild     |  2 +-
>  arch/metag/include/uapi/asm/resource.h |  7 -------
>  arch/parisc/include/asm/processor.h    |  5 +++++
>  arch/parisc/kernel/sys_parisc.c        |  6 +++---
>  fs/exec.c                              |  6 +++---
>  include/asm-generic/resource.h         |  2 +-
>  include/uapi/asm-generic/resource.h    |  7 -------
>  mm/Kconfig                             | 15 +++++++++++++++
>  9 files changed, 30 insertions(+), 22 deletions(-)
>  delete mode 100644 arch/metag/include/uapi/asm/resource.h
> 
> Cc: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
> Cc: "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
> Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
> Cc: John David Anglin <dave.anglin-CzeTG9NwML0@public.gmane.org>
> Cc: linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> 

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Subject: Re: [PATCH] parisc: Improve LWS-CAS performance
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On 5/14/2014 3:12 PM, Helge Deller wrote:
> On 05/14/2014 05:31 AM, Carlos O'Donell wrote:
>> On Sun, May 11, 2014 at 6:40 PM, John David Anglin <dave.anglin@bell.net> wrote:
>>> 2) Removes the lock code on UP systems where it is not needed, and
>> This is wrong. The locking was originally only for SMP, but at one
>> point it was discovered that you could COW during the CAS operation
>> and if you didn't take the lock in UP, you could re-enter the CAS via
>> another task and thus incorrectly carry out the CAS in two different
>> threads and corrupt the state. While we attempt our best to prevent
>> the task running the CAS from being scheduled off, the COW operation
>> trap and subsequent scheduling is not something I could find an easy
>> way to prevent. Therefore the solution was to use locks for both UP
>> and SMP.
> If so, could one of you please send an updated patch to the list...?
> Currently I've scheduled http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=for-next&id=f4030047d92c79344ac4ca6ad4c6e3e22ceb5a55
> for inclusion into the next kernel (hopefully 3.15).
I agree that a COW could occur but I haven't seen evidence that threads are
getting rescheduled.  We did fix some code in the fault handling a few 
months
ago.  Anyway, I have no strong objection to removing ifdefs and 
resending after
testing.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
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Cc: "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>,
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To: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
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Hi Helge,

On 14/05/14 20:22, Helge Deller wrote:
> On 05/14/2014 02:52 PM, James Hogan wrote:
>> Patch 1 is a metag bug fix for v3.15 & stable.
>>
>> Patch 2 depends on patch 1, and makes the stack limit configurable.
>> Helge: I don't object if you want to take this patch yourself since it=

>> was originally yours, so long as it goes after patch 1 (which I'll try=

>> and get into v3.15-rc6).
>=20
> Thanks for cleaning it up!
> I'd really prefer if you could push the whole series through your tree.=

> That way you can easily ensure the correct sequence.

Okay, no problem, and I see the parisc patch is already in mainline.

> IMHO, it would be nice if all four patches would still go into 3.15, es=
p.
> since it affects our platforms (parisc & metag) only.

Right. That doesn't sound unreasonable since patch 2 restores default
80MB stacks for parisc, patch 3 may prevent confusing userland, and
patch 4 is just an obvious cleanup as a result of earlier patches.

Cheers
James

>=20
> Helge
>=20
>>
>> Patch 3 depends on patch 1, and removes the RLIMIT_STACK default value=

>> for metag. I'll take this through metag tree for v3.16.
>>
>> Patch 4 depends on patch 3 and the corresponding parisc patch and
>> removes the ability to override the default hard RLIMIT_STACK. Dependi=
ng
>> on when the parisc patch reaches mainline I'll try and get this in for=

>> v3.16.
>>
>> Helge Deller (1):
>>   parisc,metag: Do not hardcode maximum userspace stack size
>>
>> James Hogan (3):
>>   metag: Reduce maximum stack size to 256MB
>>   metag: Remove _STK_LIM_MAX override
>>   asm-generic: remove _STK_LIM_MAX
>>
>>  arch/metag/include/asm/processor.h     |  2 ++
>>  arch/metag/include/uapi/asm/Kbuild     |  2 +-
>>  arch/metag/include/uapi/asm/resource.h |  7 -------
>>  arch/parisc/include/asm/processor.h    |  5 +++++
>>  arch/parisc/kernel/sys_parisc.c        |  6 +++---
>>  fs/exec.c                              |  6 +++---
>>  include/asm-generic/resource.h         |  2 +-
>>  include/uapi/asm-generic/resource.h    |  7 -------
>>  mm/Kconfig                             | 15 +++++++++++++++
>>  9 files changed, 30 insertions(+), 22 deletions(-)
>>  delete mode 100644 arch/metag/include/uapi/asm/resource.h
>>
>> Cc: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
>> Cc: "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
>> Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
>> Cc: John David Anglin <dave.anglin-CzeTG9NwML0@public.gmane.org>
>> Cc: linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>>
>=20


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From - Thu Nov 08 21:10:20 2018
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On 05/13/2014 01:17 PM, Helge Deller wrote:
> 
> We can't use CONFIG_64BIT for a userspace header file. Please use 
> #if !defined(__LP64__)
> instead.
> But even then I'm not sure if it's all correct...
> 

__u64 (or __s64) works fine in that case.

	-hpa



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Cc: linux-parisc List <linux-parisc@vger.kernel.org>,
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On 13-May-14, at 11:31 PM, Carlos O'Donell wrote:

>> 2) Removes the lock code on UP systems where it is not needed, and
>
> This is wrong. The locking was originally only for SMP, but at one
> point it was discovered that you could COW during the CAS operation
> and if you didn't take the lock in UP, you could re-enter the CAS via
> another task and thus incorrectly carry out the CAS in two different
> threads and corrupt the state.

The attached file updates the change so that the lock code is no  
longer removed
on UP systems.  I added a comment to indicate that contention can  
occur even on
UP systems.

Lightly tested with a build of kyotocabinet on c3750.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
---


--Apple-Mail-11-943196040
Content-Disposition: attachment; filename="syscall.S.d.1.txt"
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diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index a63bb179..8387860 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -589,10 +589,13 @@ cas_nocontend:
 # endif
 /* ENABLE_LWS_DEBUG */
 
+	rsm	PSW_SM_I, %r0				/* Disable interrupts */
+	/* COW breaks can cause contention on UP systems */
 	LDCW	0(%sr2,%r20), %r28			/* Try to acquire the lock */
 	cmpb,<>,n	%r0, %r28, cas_action		/* Did we get it? */
 cas_wouldblock:
 	ldo	2(%r0), %r28				/* 2nd case */
+	ssm	PSW_SM_I, %r0
 	b	lws_exit				/* Contended... */
 	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
 
@@ -619,15 +622,17 @@ cas_action:
 	stw	%r1, 4(%sr2,%r20)
 #endif
 	/* The load and store could fail */
-1:	ldw	0(%sr3,%r26), %r28
+1:	ldw,ma	0(%sr3,%r26), %r28
 	sub,<>	%r28, %r25, %r0
-2:	stw	%r24, 0(%sr3,%r26)
+2:	stw,ma	%r24, 0(%sr3,%r26)
 	/* Free lock */
-	stw	%r20, 0(%sr2,%r20)
+	stw,ma	%r20, 0(%sr2,%r20)
 #if ENABLE_LWS_DEBUG
 	/* Clear thread register indicator */
 	stw	%r0, 4(%sr2,%r20)
 #endif
+	/* Enable interrupts */
+	ssm	PSW_SM_I, %r0
 	/* Return to userspace, set no error */
 	b	lws_exit
 	copy	%r0, %r21
@@ -639,6 +644,7 @@ cas_action:
 #if ENABLE_LWS_DEBUG
 	stw	%r0, 4(%sr2,%r20)
 #endif
+	ssm	PSW_SM_I, %r0
 	b	lws_exit
 	ldo	-EFAULT(%r0),%r21	/* set errno */
 	nop

--Apple-Mail-11-943196040
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--
John David Anglin	dave.anglin@bell.net


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From: James Hogan <james.hogan@imgtec.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.metag
Subject: [GIT PULL] Metag architecture and related fixes for v3.15
Date: Fri, 16 May 2014 15:41:46 +0100
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Cc: Helge Deller <deller@gmx.de>,
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Hi Linus,

Please pull the following metag / parisc fixes, mostly relating to upgrow=
ing
stacks. These changes only affect metag and parisc, and although the
asm-generic one isn't strictly a fix it's simple and follows naturally fr=
om
the other _STK_LIM_MAX override removals (here for metag and in rc4 for
parisc).

Thanks
James

The following changes since commit d6d211db37e75de2ddc3a4f979038c40df7cc7=
9c:

  Linux 3.15-rc5 (2014-05-09 13:10:52 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag.git tags/met=
ag-for-v3.15-2

for you to fetch changes up to ffe6902b66aaa4ca6694bc19639259c16d84ddb1:

  asm-generic: remove _STK_LIM_MAX (2014-05-15 00:32:09 +0100)

----------------------------------------------------------------
Metag architecture and related fixes for v3.15

Mostly fixes for metag and parisc relating to upgrowing stacks.

* Fix missing compiler barriers in metag memory barriers.
* Fix BUG_ON on metag when RLIMIT_STACK hard limit is increased beyond
  safe value.
* Make maximum stack size configurable. This reduces the default user
  stack size back to 80MB (especially on parisc after their removal of
  _STK_LIM_MAX override). This only affects metag and parisc.
* Remove metag _STK_LIM_MAX override to match other arches and follow
  parisc, now that it is safe to do so (due to the BUG_ON fix mentioned
  above).
* Finally now that both metag and parisc _STK_LIM_MAX overrides have
  been removed, it makes sense to remove _STK_LIM_MAX altogether.

----------------------------------------------------------------
Helge Deller (1):
      parisc,metag: Do not hardcode maximum userspace stack size

James Hogan (3):
      metag: Reduce maximum stack size to 256MB
      metag: Remove _STK_LIM_MAX override
      asm-generic: remove _STK_LIM_MAX

Mikulas Patocka (1):
      metag: fix memory barriers

 arch/metag/include/asm/barrier.h       |  3 +++
 arch/metag/include/asm/processor.h     |  2 ++
 arch/metag/include/uapi/asm/Kbuild     |  2 +-
 arch/metag/include/uapi/asm/resource.h |  7 -------
 arch/parisc/include/asm/processor.h    |  5 +++++
 arch/parisc/kernel/sys_parisc.c        |  6 +++---
 fs/exec.c                              |  6 +++---
 include/asm-generic/resource.h         |  2 +-
 include/uapi/asm-generic/resource.h    |  7 -------
 mm/Kconfig                             | 15 +++++++++++++++
 10 files changed, 33 insertions(+), 22 deletions(-)
 delete mode 100644 arch/metag/include/uapi/asm/resource.h


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From - Thu Nov 08 21:10:20 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc updates for v3.15
Date: Fri, 16 May 2014 22:01:12 +0200
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi Linus,

please pull the latest parisc architecture fixes for kernel 3.15 from 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.15-4

There are two patches in here:

The first patch greatly improves latency and corrects the memory ordering in
our light-weight atomic locking syscall.

The second patch ratelimits printing of userspace segfaults in the same way as
it's done on other platforms. This fixes a possible DOS on parisc since it
prevents the syslog to grow too fast. For example, when the debian acl2 package
was built on our debian buildd servers, this package produced lots of gigabytes
in syslog in very short time and thus filled our harddisks, which then turned
the server nearly completely unaccessible and unresponsive.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (1):
      parisc: ratelimit userspace segfault printing

John David Anglin (1):
      parisc: Improve LWS-CAS performance

 arch/parisc/Kconfig          |  1 +
 arch/parisc/kernel/syscall.S | 12 +++++++---
 arch/parisc/kernel/traps.c   | 54 ++++++++++++++++++++------------------------
 arch/parisc/mm/fault.c       | 44 ++++++++++++++++++++++++------------
 4 files changed, 65 insertions(+), 46 deletions(-)
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From - Thu Nov 08 21:10:20 2018
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On Thu, May 22, 2014 at 07:47:35AM +0900, Linus Torvalds wrote:
> Due to travels and related lack of internet access, the rc releases
> haven't been following the normal Sunday release cycle, and since I
> caught up with what happened while I was off-line, rather than wait
> until next Sunday to reset to the normal cycle, I'm just releasing rc6
> now mid-week from Tokyo.
> 
> With rc5 being a couple of days early, and rc6 being several days
> late, we had almost two weeks in between them. The size of the result
> is not twice as large, though, hopefully partially because it's
> getting late in the rc series and things are supposed to be calming
> down, but presumably also because some submaintainers just didn't send
> their pull requests because they knew I was off-line. Whatever the
> reason, things don't look bad.
> 
> The patch distribution looks pretty normal too. Mostly drivers (acpi,
> sound, media, i915, clk, pci..) with the bulk of the rest being
> various arch updates (notably MIPS, but arm and parisc too). And a
> smattering of other random stuff in filesystems and core kernel code.
> 
Unfortunately it appears that the parisc changes cause build failures
with parisc 64 bit builds.

Building parisc:a500_defconfig ... failed
Building parisc:generic-64bit_defconfig ... failed

Error log:
arch/parisc/kernel/built-in.o: In function `sys_call_table':
(.rodata+0xad0): undefined reference to `compat_sys_renameat2'
make: *** [vmlinux] Error 1

parisc 32 bit builds (defconfig and generic-32bit_defconfig) are fine.

Guenter
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From - Thu Nov 08 21:10:20 2018
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From: Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: Linux 3.15-rc6
Date: Thu, 22 May 2014 17:43:34 -0700
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Miklos,

this is from your commit 18e480aa07f78 ("parisc: add renameat2
syscall") which was acked by Helge Deller:

On Thu, May 22, 2014 at 10:20 AM, Guenter Roeck <linux@roeck-us.net> wrote:
>
> Unfortunately it appears that the parisc changes cause build failures
> with parisc 64 bit builds.
>
> Building parisc:a500_defconfig ... failed
> Building parisc:generic-64bit_defconfig ... failed
>
> Error log:
> arch/parisc/kernel/built-in.o: In function `sys_call_table':
> (.rodata+0xad0): undefined reference to `compat_sys_renameat2'
> make: *** [vmlinux] Error 1

only s390 seems to need a compat wrapper, and s390 is kind of odd in
many respects, so I suspect renameat2 should just use ENTRY_SAME() on
parisc, but without any way to *test* it I won't apply the patch.

Guenter, I assume that changing the

        ENTRY_COMP(renameat2)

line in arch/parisc/kernel/syscall_table.S to use ENTRY_SAME() at
least fixes the compile error?

            Linus
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From - Thu Nov 08 21:10:20 2018
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From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: Linux 3.15-rc6
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On 05/22/2014 05:43 PM, Linus Torvalds wrote:
> Miklos,
>
> this is from your commit 18e480aa07f78 ("parisc: add renameat2
> syscall") which was acked by Helge Deller:
>
> On Thu, May 22, 2014 at 10:20 AM, Guenter Roeck <linux@roeck-us.net> wrote:
>>
>> Unfortunately it appears that the parisc changes cause build failures
>> with parisc 64 bit builds.
>>
>> Building parisc:a500_defconfig ... failed
>> Building parisc:generic-64bit_defconfig ... failed
>>
>> Error log:
>> arch/parisc/kernel/built-in.o: In function `sys_call_table':
>> (.rodata+0xad0): undefined reference to `compat_sys_renameat2'
>> make: *** [vmlinux] Error 1
>
> only s390 seems to need a compat wrapper, and s390 is kind of odd in
> many respects, so I suspect renameat2 should just use ENTRY_SAME() on
> parisc, but without any way to *test* it I won't apply the patch.
>
> Guenter, I assume that changing the
>
>          ENTRY_COMP(renameat2)
>
> line in arch/parisc/kernel/syscall_table.S to use ENTRY_SAME() at
> least fixes the compile error?
>

Yes, it fixes the build error for parisc64, and parisc (32 bit) still builds.

Guenter

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From: Linus Torvalds <torvalds@linux-foundation.org>
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Subject: Re: Linux 3.15-rc6
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On Thu, May 22, 2014 at 6:07 PM, Guenter Roeck <linux@roeck-us.net> wrote:
> On 05/22/2014 05:43 PM, Linus Torvalds wrote:
>>
>>
>> only s390 seems to need a compat wrapper, and s390 is kind of odd in
>> many respects, so I suspect renameat2 should just use ENTRY_SAME() on
>> parisc, but without any way to *test* it I won't apply the patch.
>>
>> Guenter, I assume that changing the
>>
>>          ENTRY_COMP(renameat2)
>>
>> line in arch/parisc/kernel/syscall_table.S to use ENTRY_SAME() at
>> least fixes the compile error?
>
> Yes, it fixes the build error for parisc64, and parisc (32 bit) still
> builds.

Ok. I'd like to get some kind of confirmation that it is expected to
work too. Miklos/Helge?

               Linus
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On Fri, May 23, 2014 at 3:27 AM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
> On Thu, May 22, 2014 at 6:07 PM, Guenter Roeck <linux@roeck-us.net> wrote:
>> On 05/22/2014 05:43 PM, Linus Torvalds wrote:
>>>
>>>
>>> only s390 seems to need a compat wrapper, and s390 is kind of odd in
>>> many respects, so I suspect renameat2 should just use ENTRY_SAME() on
>>> parisc, but without any way to *test* it I won't apply the patch.
>>>
>>> Guenter, I assume that changing the
>>>
>>>          ENTRY_COMP(renameat2)
>>>
>>> line in arch/parisc/kernel/syscall_table.S to use ENTRY_SAME() at
>>> least fixes the compile error?
>>
>> Yes, it fixes the build error for parisc64, and parisc (32 bit) still
>> builds.
>
> Ok. I'd like to get some kind of confirmation that it is expected to
> work too. Miklos/Helge?

Oops, yes, it should be ENTRY_SAME().

Thanks,
Miklos

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On 05/23/2014 11:12 AM, Miklos Szeredi wrote:
> On Fri, May 23, 2014 at 3:27 AM, Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
>> On Thu, May 22, 2014 at 6:07 PM, Guenter Roeck <linux@roeck-us.net> wrote:
>>> On 05/22/2014 05:43 PM, Linus Torvalds wrote:
>>>>
>>>>
>>>> only s390 seems to need a compat wrapper, and s390 is kind of odd in
>>>> many respects, so I suspect renameat2 should just use ENTRY_SAME() on
>>>> parisc, but without any way to *test* it I won't apply the patch.
>>>>
>>>> Guenter, I assume that changing the
>>>>
>>>>          ENTRY_COMP(renameat2)
>>>>
>>>> line in arch/parisc/kernel/syscall_table.S to use ENTRY_SAME() at
>>>> least fixes the compile error?
>>>
>>> Yes, it fixes the build error for parisc64, and parisc (32 bit) still
>>> builds.
>>
>> Ok. I'd like to get some kind of confirmation that it is expected to
>> work too. Miklos/Helge?
> 
> Oops, yes, it should be ENTRY_SAME().

Yes, ENTRY_SAME() is correct. Sorry, it was my fault that I didn't noticed earlier.

Helge
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I now know where to get my trusted branded goods 

http://smilingsoulcoaching.com/llltdud.php


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From - Thu Nov 08 21:10:21 2018
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From - Thu Nov 08 21:10:21 2018
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From: Luis Henriques <luis.henriques@canonical.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.ubuntu.devel.kernel.general
Subject: [3.11.y.z extended stable] Patch "metag: Reduce maximum stack size to 256MB" has been added to staging queue
Date: Fri, 30 May 2014 10:29:05 +0100
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This is a note to let you know that I have just added a patch titled

    metag: Reduce maximum stack size to 256MB

to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.11.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 446548dfdf62f1c5a749ac36b2ac311444d26892 Mon Sep 17 00:00:00 2001
From: James Hogan <james.hogan@imgtec.com>
Date: Tue, 13 May 2014 23:58:24 +0100
Subject: metag: Reduce maximum stack size to 256MB

commit d71f290b4e98a39f49f2595a13be3b4d5ce8e1f1 upstream.

Specify the maximum stack size for arches where the stack grows upward
(parisc and metag) in asm/processor.h rather than hard coding in
fs/exec.c so that metag can specify a smaller value of 256MB rather than
1GB.

This fixes a BUG on metag if the RLIMIT_STACK hard limit is increased
beyond a safe value by root. E.g. when starting a process after running
"ulimit -H -s unlimited" it will then attempt to use a stack size of the
maximum 1GB which is far too big for metag's limited user virtual
address space (stack_top is usually 0x3ffff000):

BUG: failure at fs/exec.c:589/shift_arg_pages()!

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Cc: linux-metag@vger.kernel.org
Cc: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 arch/metag/include/asm/processor.h  | 2 ++
 arch/parisc/include/asm/processor.h | 2 ++
 fs/exec.c                           | 6 +++---
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index f16477d1f571..3be8581af495 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -22,6 +22,8 @@
 /* Add an extra page of padding at the top of the stack for the guard page. */
 #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
 #define STACK_TOP_MAX	STACK_TOP
+/* Maximum virtual space for stack */
+#define STACK_SIZE_MAX	(1 << 28)	/* 256 MB */

 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index cc2290a3cace..c6ee86542fec 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -53,6 +53,8 @@
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE

+#define STACK_SIZE_MAX	(1 << 30)	/* 1 GB */
+
 #endif

 #ifndef __ASSEMBLY__
diff --git a/fs/exec.c b/fs/exec.c
index e72f6bbbde2e..87e9edb36fe0 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -655,10 +655,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	unsigned long rlim_stack;

 #ifdef CONFIG_STACK_GROWSUP
-	/* Limit stack size to 1GB */
+	/* Limit stack size */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;

 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
--
1.9.1

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The cancelable MCS spinlocks introduced in
fb0527bd5ea99bfeb2dd91e3c1433ecf745d6b99 break the kernel on PA-RISC.

How to reproduce:
* Use a machine with two dual-core PA-8900 processors.
* Run the LVM testsuite and compile the kernel in an endless loop at the
  same time.
* Wait for an hour or two and the kernel locks up.

You see some processes locked up in osd_lock and osq_unlock:
INFO: rcu_sched self-detected stall on CPU { 2}  (t=18000 jiffies g=247335 c=247334 q=101)
CPU: 2 PID: 21006 Comm: lvm Tainted: G           O  3.15.0-rc7 #9
Backtrace:
 [<000000004013e8a4>] show_stack+0x14/0x20
 [<00000000403016f0>] dump_stack+0x88/0x100
 [<00000000401b8738>] rcu_check_callbacks+0x4a8/0x900
 [<00000000401714c4>] update_process_times+0x64/0xc0
 [<000000004013fa24>] timer_interrupt+0x19c/0x200
 [<00000000401ad8d8>] handle_irq_event_percpu+0xa8/0x238
 [<00000000401b2454>] handle_percpu_irq+0x9c/0xd0
 [<00000000401acc40>] generic_handle_irq+0x40/0x50
 [<00000000401408cc>] do_cpu_irq_mask+0x1ac/0x298
 [<000000004012c074>] intr_return+0x0/0xc
 [<00000000401a609c>] osq_lock+0xc4/0x178
 [<0000000040138d24>] __mutex_lock_slowpath+0x1cc/0x290
 [<0000000040138e78>] mutex_lock+0x90/0x98
 [<00000000402a5614>] kernfs_activate+0x6c/0x1a0
 [<00000000402a59e0>] kernfs_add_one+0x140/0x190
 [<00000000402a75ec>] __kernfs_create_file+0xa4/0xf8

INFO: rcu_sched self-detected stall on CPU { 3}  (t=18473 jiffies g=247335 c=247334 q=101)
CPU: 3 PID: 21051 Comm: udevd Tainted: G           O  3.15.0-rc7 #9
Backtrace:
 [<000000004013e8a4>] show_stack+0x14/0x20
 [<00000000403016f0>] dump_stack+0x88/0x100
 [<00000000401b8738>] rcu_check_callbacks+0x4a8/0x900
 [<00000000401714c4>] update_process_times+0x64/0xc0
 [<000000004013fa24>] timer_interrupt+0x19c/0x200
 [<00000000401ad8d8>] handle_irq_event_percpu+0xa8/0x238
 [<00000000401b2454>] handle_percpu_irq+0x9c/0xd0
 [<00000000401acc40>] generic_handle_irq+0x40/0x50
 [<00000000401408cc>] do_cpu_irq_mask+0x1ac/0x298
 [<000000004012c074>] intr_return+0x0/0xc
 [<00000000401a6220>] osq_unlock+0xd0/0xf8
 [<0000000040138dcc>] __mutex_lock_slowpath+0x274/0x290
 [<0000000040138e78>] mutex_lock+0x90/0x98
 [<00000000402a3a90>] kernfs_dop_revalidate+0x48/0x108
 [<0000000040233310>] lookup_fast+0x320/0x348
 [<0000000040234600>] link_path_walk+0x190/0x9d8


The code in kernel/locking/mcs_spinlock.c is broken.

PA-RISC doesn't have xchg or cmpxchg atomic instructions like other
processors. It only has ldcw and ldcd instructions that load a word (or
doubleword) from memory and atomically store zero at the same location.
These instructions can only be used to implement spinlocks, direct
implementation of other atomic operations is impossible.

Consequently, Linux xchg and cmpxchg functions are implemented in such a
way that they hash the address, use the hash to index a spinlock, take the
spinlock, perform the xchg or cmpxchg operation non-atomically and drop
the spinlock.

If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg at
the same time, you break it. ACCESS_ONCE doesn't take the hashed spinlock,
so, in this case, cmpxchg or xchg isn't really atomic at all.

This patch fixes the bug by introducing a new type atomic_pointer_t 
(backed by atomic_long_t) and replacing the offending pointer with it. 
atomic_long_set takes the hashed spinlock, so it avoids the race 
condition.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
 include/asm-generic/atomic-long.h |   24 ++++++++++++++++++++++++
 kernel/locking/mcs_spinlock.c     |   16 ++++++++--------
 kernel/locking/mcs_spinlock.h     |    4 +++-
 3 files changed, 35 insertions(+), 9 deletions(-)

Index: linux-3.15-rc7/kernel/locking/mcs_spinlock.c
===================================================================
--- linux-3.15-rc7.orig/kernel/locking/mcs_spinlock.c	2014-05-31 19:05:24.000000000 +0200
+++ linux-3.15-rc7/kernel/locking/mcs_spinlock.c	2014-06-01 14:31:58.000000000 +0200
@@ -47,8 +47,8 @@ osq_wait_next(struct optimistic_spin_que
 		 * wait for either @lock to point to us, through its Step-B, or
 		 * wait for a new @node->next from its Step-C.
 		 */
-		if (node->next) {
-			next = xchg(&node->next, NULL);
+		if (atomic_pointer_read(&node->next)) {
+			next = atomic_pointer_xchg(&node->next, NULL);
 			if (next)
 				break;
 		}
@@ -65,13 +65,13 @@ bool osq_lock(struct optimistic_spin_que
 	struct optimistic_spin_queue *prev, *next;
 
 	node->locked = 0;
-	node->next = NULL;
+	atomic_pointer_set(&node->next, NULL);
 
 	node->prev = prev = xchg(lock, node);
 	if (likely(prev == NULL))
 		return true;
 
-	ACCESS_ONCE(prev->next) = node;
+	atomic_pointer_set(&prev->next, node);
 
 	/*
 	 * Normally @prev is untouchable after the above store; because at that
@@ -103,8 +103,8 @@ unqueue:
 	 */
 
 	for (;;) {
-		if (prev->next == node &&
-		    cmpxchg(&prev->next, node, NULL) == node)
+		if (atomic_pointer_read(&prev->next) == node &&
+		    atomic_pointer_cmpxchg(&prev->next, node, NULL) == node)
 			break;
 
 		/*
@@ -144,7 +144,7 @@ unqueue:
 	 */
 
 	ACCESS_ONCE(next->prev) = prev;
-	ACCESS_ONCE(prev->next) = next;
+	atomic_pointer_set(&prev->next, next);
 
 	return false;
 }
@@ -163,7 +163,7 @@ void osq_unlock(struct optimistic_spin_q
 	/*
 	 * Second most likely case.
 	 */
-	next = xchg(&node->next, NULL);
+	next = atomic_pointer_xchg(&node->next, NULL);
 	if (next) {
 		ACCESS_ONCE(next->locked) = 1;
 		return;
Index: linux-3.15-rc7/kernel/locking/mcs_spinlock.h
===================================================================
--- linux-3.15-rc7.orig/kernel/locking/mcs_spinlock.h	2014-05-31 19:01:01.000000000 +0200
+++ linux-3.15-rc7/kernel/locking/mcs_spinlock.h	2014-06-01 14:17:49.000000000 +0200
@@ -13,6 +13,7 @@
 #define __LINUX_MCS_SPINLOCK_H
 
 #include <asm/mcs_spinlock.h>
+#include <linux/atomic.h>
 
 struct mcs_spinlock {
 	struct mcs_spinlock *next;
@@ -119,7 +120,8 @@ void mcs_spin_unlock(struct mcs_spinlock
  */
 
 struct optimistic_spin_queue {
-	struct optimistic_spin_queue *next, *prev;
+	atomic_pointer_t next;
+	struct optimistic_spin_queue *prev;
 	int locked; /* 1 if lock acquired */
 };
 
Index: linux-3.15-rc7/include/asm-generic/atomic-long.h
===================================================================
--- linux-3.15-rc7.orig/include/asm-generic/atomic-long.h	2014-06-01 14:04:17.000000000 +0200
+++ linux-3.15-rc7/include/asm-generic/atomic-long.h	2014-06-01 14:30:19.000000000 +0200
@@ -255,4 +255,28 @@ static inline long atomic_long_add_unles
 
 #endif  /*  BITS_PER_LONG == 64  */
 
+typedef atomic_long_t atomic_pointer_t;
+
+#define ATOMIC_POINTER_INIT(i)	ATOMIC_LONG_INIT((long)(i))
+
+static inline void *atomic_pointer_read(atomic_pointer_t *v)
+{
+	return (void *)atomic_long_read(v);
+}
+
+static inline void atomic_pointer_set(atomic_pointer_t *v, void *i)
+{
+	atomic_long_set(v, (long)i);
+}
+
+static inline void *atomic_pointer_xchg(atomic_pointer_t *v, void *i)
+{
+	return (void *)atomic_long_xchg(v, (long)i);
+}
+
+static inline void *atomic_pointer_cmpxchg(atomic_pointer_t *v, void *old, void *new)
+{
+	return (void *)atomic_long_cmpxchg(v, (long)old, (long)new);
+}
+
 #endif  /*  _ASM_GENERIC_ATOMIC_LONG_H  */
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From - Thu Nov 08 21:10:21 2018
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From: Peter Zijlstra <peterz@infradead.org>
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Subject: Re: [PATCH] fix a race condition in cancelable mcs spinlocks
Date: Sun, 1 Jun 2014 21:20:26 +0200
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	jejb@parisc-linux.org, deller@gmx.de,
	John David Anglin <dave.anglin@bell.net>,
	linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org,
	chegu_vinod@hp.com, paulmck@linux.vnet.ibm.com, Waiman.Long@hp.com,
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	davidlohr@hp.com, hpa@zytor.com, andi@firstfloor.org, aswin@hp.com,
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To: Mikulas Patocka <mpatocka@redhat.com>
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On Sun, Jun 01, 2014 at 01:53:11PM -0400, Mikulas Patocka wrote:
> PA-RISC doesn't have xchg or cmpxchg atomic instructions like other
> processors. It only has ldcw and ldcd instructions that load a word (or
> doubleword) from memory and atomically store zero at the same location.
> These instructions can only be used to implement spinlocks, direct
> implementation of other atomic operations is impossible.
> 
> Consequently, Linux xchg and cmpxchg functions are implemented in such a
> way that they hash the address, use the hash to index a spinlock, take the
> spinlock, perform the xchg or cmpxchg operation non-atomically and drop
> the spinlock.
> 
> If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg at
> the same time, you break it. ACCESS_ONCE doesn't take the hashed spinlock,
> so, in this case, cmpxchg or xchg isn't really atomic at all.

And this is really the first place in the kernel that breaks like this?
I've been using xchg() and cmpxchg() without such consideration for
quite a while.

Doesn't sparc32 have similarly broken atomic ops?

Ideally, if we really want to preserve such broken-ness, we'd add some
debugging infrastructure to detect such nonsense.

> This patch fixes the bug by introducing a new type atomic_pointer_t 
> (backed by atomic_long_t) and replacing the offending pointer with it. 
> atomic_long_set takes the hashed spinlock, so it avoids the race 
> condition.

So I hate that twice, once since xchg() and cmpxchg() do not share the
atomic_ prefix, its inappropriate and misleading here, and secondly,
non of this is specific to pointers, xchg() and cmpxchg() take any
(naturally aligned) 'native' size type.

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Subject: Re: [PATCH] fix a race condition in cancelable mcs spinlocks
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On 1-Jun-14, at 3:20 PM, Peter Zijlstra wrote:

>> If you write to some variable with ACCESS_ONCE and use cmpxchg or  
>> xchg at
>> the same time, you break it. ACCESS_ONCE doesn't take the hashed  
>> spinlock,
>> so, in this case, cmpxchg or xchg isn't really atomic at all.
>
> And this is really the first place in the kernel that breaks like  
> this?
> I've been using xchg() and cmpxchg() without such consideration for
> quite a while.

I believe Mikulas is correct.  Even in a controlled situation where a  
cmpxchg operation
is used to implement pthread_spin_lock() in userspace, we found  
recently that the lock
must be released with a  cmpxchg operation and not a simple write on  
SMP systems.
There is a race in the cache operations or instruction ordering that's  
not present with
the ldcw instruction.

Dave
--
John David Anglin	dave.anglin@bell.net



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To: John David Anglin <dave.anglin@bell.net>
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On Sun, Jun 01, 2014 at 04:46:26PM -0400, John David Anglin wrote:
> On 1-Jun-14, at 3:20 PM, Peter Zijlstra wrote:
> 
> >>If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg
> >>at
> >>the same time, you break it. ACCESS_ONCE doesn't take the hashed
> >>spinlock,
> >>so, in this case, cmpxchg or xchg isn't really atomic at all.
> >
> >And this is really the first place in the kernel that breaks like this?
> >I've been using xchg() and cmpxchg() without such consideration for
> >quite a while.
> 
> I believe Mikulas is correct.  Even in a controlled situation where a
> cmpxchg operation
> is used to implement pthread_spin_lock() in userspace, we found recently
> that the lock
> must be released with a  cmpxchg operation and not a simple write on SMP
> systems.
> There is a race in the cache operations or instruction ordering that's not
> present with
> the ldcw instruction.

Oh, I'm not arguing that. He's quite right that its broken, but this
form of atomic ops is also quite insane and unusual. Most sane machines
don't have this problem.

My main concern is how are we going to avoid breaking parisc (and I
think sparc32, which is similarly retarded) in the future; we should
invest in machinery to find and detect these things.

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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
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Subject: Re: [PATCH] fix a race condition in cancelable mcs spinlocks
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Cc: John David Anglin <dave.anglin@bell.net>,
	Mikulas Patocka <mpatocka@redhat.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	jejb@parisc-linux.org, deller@gmx.de, linux-parisc@vger.kernel.org,
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To: Peter Zijlstra <peterz@infradead.org>
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On Sun, Jun 01, 2014 at 11:30:03PM +0200, Peter Zijlstra wrote:
> On Sun, Jun 01, 2014 at 04:46:26PM -0400, John David Anglin wrote:
> > On 1-Jun-14, at 3:20 PM, Peter Zijlstra wrote:
> > 
> > >>If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg
> > >>at
> > >>the same time, you break it. ACCESS_ONCE doesn't take the hashed
> > >>spinlock,
> > >>so, in this case, cmpxchg or xchg isn't really atomic at all.
> > >
> > >And this is really the first place in the kernel that breaks like this?
> > >I've been using xchg() and cmpxchg() without such consideration for
> > >quite a while.
> > 
> > I believe Mikulas is correct.  Even in a controlled situation where a
> > cmpxchg operation
> > is used to implement pthread_spin_lock() in userspace, we found recently
> > that the lock
> > must be released with a  cmpxchg operation and not a simple write on SMP
> > systems.
> > There is a race in the cache operations or instruction ordering that's not
> > present with
> > the ldcw instruction.
> 
> Oh, I'm not arguing that. He's quite right that its broken, but this
> form of atomic ops is also quite insane and unusual. Most sane machines
> don't have this problem.
> 
> My main concern is how are we going to avoid breaking parisc (and I
> think sparc32, which is similarly retarded) in the future; we should
> invest in machinery to find and detect these things.

I cannot see an easy way to fix this by making ACCESS_ONCE() arch-dependent.
But could the compiler help out by recognizing ACCESS_ONCE() and generating
the needed code for it on sparc and pa-risc?

							Thanx, Paul

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From: Mikulas Patocka <mpatocka@redhat.com>
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Cc: John David Anglin <dave.anglin@bell.net>,
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On Sun, 1 Jun 2014, Peter Zijlstra wrote:

> On Sun, Jun 01, 2014 at 04:46:26PM -0400, John David Anglin wrote:
> > On 1-Jun-14, at 3:20 PM, Peter Zijlstra wrote:
> > 
> > >>If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg
> > >>at
> > >>the same time, you break it. ACCESS_ONCE doesn't take the hashed
> > >>spinlock,
> > >>so, in this case, cmpxchg or xchg isn't really atomic at all.
> > >
> > >And this is really the first place in the kernel that breaks like this?
> > >I've been using xchg() and cmpxchg() without such consideration for
> > >quite a while.
> > 
> > I believe Mikulas is correct.  Even in a controlled situation where a
> > cmpxchg operation
> > is used to implement pthread_spin_lock() in userspace, we found recently
> > that the lock
> > must be released with a  cmpxchg operation and not a simple write on SMP
> > systems.
> > There is a race in the cache operations or instruction ordering that's not
> > present with
> > the ldcw instruction.
> 
> Oh, I'm not arguing that. He's quite right that its broken, but this
> form of atomic ops is also quite insane and unusual. Most sane machines
> don't have this problem.
> 
> My main concern is how are we going to avoid breaking parisc (and I
> think sparc32, which is similarly retarded) in the future; we should
> invest in machinery to find and detect these things.

Grep the kernel for "\<xchg\>" and "\<cmpxchg\>" and replace them with 
atomic types and atomic access functions.

Mikulas
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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To: Peter Zijlstra <peterz@infradead.org>
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On Sun, 1 Jun 2014, Peter Zijlstra wrote:

> On Sun, Jun 01, 2014 at 01:53:11PM -0400, Mikulas Patocka wrote:
> > PA-RISC doesn't have xchg or cmpxchg atomic instructions like other
> > processors. It only has ldcw and ldcd instructions that load a word (or
> > doubleword) from memory and atomically store zero at the same location.
> > These instructions can only be used to implement spinlocks, direct
> > implementation of other atomic operations is impossible.
> > 
> > Consequently, Linux xchg and cmpxchg functions are implemented in such a
> > way that they hash the address, use the hash to index a spinlock, take the
> > spinlock, perform the xchg or cmpxchg operation non-atomically and drop
> > the spinlock.
> > 
> > If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg at
> > the same time, you break it. ACCESS_ONCE doesn't take the hashed spinlock,
> > so, in this case, cmpxchg or xchg isn't really atomic at all.
> 
> And this is really the first place in the kernel that breaks like this?
> I've been using xchg() and cmpxchg() without such consideration for
> quite a while.

It happens on a common mutex operation and it took an hour of 
stress-testing to trigger it.

The other cases may be buggy too, but no one has written a stress test 
specifically tailored for them.

> Doesn't sparc32 have similarly broken atomic ops?

Yes. tile32, arc and metag seem to be broken by this too. hexagon also has 
non-standard atomic_set, so it may be broken too.

> Ideally, if we really want to preserve such broken-ness, we'd add some
> debugging infrastructure to detect such nonsense.
> 
> > This patch fixes the bug by introducing a new type atomic_pointer_t 
> > (backed by atomic_long_t) and replacing the offending pointer with it. 
> > atomic_long_set takes the hashed spinlock, so it avoids the race 
> > condition.
> 
> So I hate that twice, once since xchg() and cmpxchg() do not share the
> atomic_ prefix, its inappropriate and misleading here, and secondly,
> non of this is specific to pointers, xchg() and cmpxchg() take any
> (naturally aligned) 'native' size type.

I think we don't need xchg() and cmpxchg() at all, because we have atomic 
types.

Mikulas
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Cc: Peter Zijlstra <peterz@infradead.org>,
	John David Anglin <dave.anglin@bell.net>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	jejb@parisc-linux.org, deller@gmx.de, linux-parisc@vger.kernel.org,
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	Jason Low <jason.low2@hp.com>
To: Mikulas Patocka <mpatocka@redhat.com>
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On Mon, Jun 02, 2014 at 05:19:39AM -0400, Mikulas Patocka wrote:
> 
> 
> On Sun, 1 Jun 2014, Peter Zijlstra wrote:
> 
> > On Sun, Jun 01, 2014 at 04:46:26PM -0400, John David Anglin wrote:
> > > On 1-Jun-14, at 3:20 PM, Peter Zijlstra wrote:
> > > 
> > > >>If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg
> > > >>at
> > > >>the same time, you break it. ACCESS_ONCE doesn't take the hashed
> > > >>spinlock,
> > > >>so, in this case, cmpxchg or xchg isn't really atomic at all.
> > > >
> > > >And this is really the first place in the kernel that breaks like this?
> > > >I've been using xchg() and cmpxchg() without such consideration for
> > > >quite a while.
> > > 
> > > I believe Mikulas is correct.  Even in a controlled situation where a
> > > cmpxchg operation
> > > is used to implement pthread_spin_lock() in userspace, we found recently
> > > that the lock
> > > must be released with a  cmpxchg operation and not a simple write on SMP
> > > systems.
> > > There is a race in the cache operations or instruction ordering that's not
> > > present with
> > > the ldcw instruction.
> > 
> > Oh, I'm not arguing that. He's quite right that its broken, but this
> > form of atomic ops is also quite insane and unusual. Most sane machines
> > don't have this problem.
> > 
> > My main concern is how are we going to avoid breaking parisc (and I
> > think sparc32, which is similarly retarded) in the future; we should
> > invest in machinery to find and detect these things.
> 
> Grep the kernel for "\<xchg\>" and "\<cmpxchg\>" and replace them with 
> atomic types and atomic access functions.

Not so good for pointers, though.  Defeats type-checking, for one thing.
An example of this is use of xchg() for atomically enqueuing RCU callbacks
in kernel/rcu/tree_plugin.h.

I still like the idea of PA-RISC's compiler implementing ACCESS_ONCE()
as needed to make things work on that architecture.

							Thanx, Paul


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On Sun, 1 Jun 2014, John David Anglin wrote:

> On 1-Jun-14, at 3:20 PM, Peter Zijlstra wrote:
> 
> > > If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg at
> > > the same time, you break it. ACCESS_ONCE doesn't take the hashed spinlock,
> > > so, in this case, cmpxchg or xchg isn't really atomic at all.
> > 
> > And this is really the first place in the kernel that breaks like this?
> > I've been using xchg() and cmpxchg() without such consideration for
> > quite a while.
> 
> I believe Mikulas is correct.  Even in a controlled situation where a 
> cmpxchg operation is used to implement pthread_spin_lock() in userspace, 
> we found recently that the lock must be released with a cmpxchg 
> operation and not a simple write on SMP systems. There is a race in the 
> cache operations or instruction ordering that's not present with the 
> ldcw instruction.
> 
> Dave
> --
> John David Anglin	dave.anglin@bell.net

That is strange.

Spinlock with cmpxchg on lock and a single write on unlock should work,
assuming that cmpxchg doesn't write to the target address when it detects
mismatch (the cmpxchg in the kernel syscall page doesn't do it, it
nullifies the write instruction on mismatch).

Do you have some code that reproduces this misbehavior?

We really need to find out why does it behave this way:
- is PA-RISC really out of order? (we used to believe that it is in-order
  and we have empty barrier instructions in the kernel). Does adding the
  "SYNC" instruction before the write in pthread_spin_unlock fix it?
- does the processor performs nullified writes unconditionally? Does
  moving the write in the cmpxchg implementation from the nullified slot
  to is own branch fix it?
- does adding a dummy "ldcw" instruction to an unrelated address fix it?
  Is it that "ldcw" has some magic barrier properties?

I think we need to perform these tests and maybe some more to find out
what really happened there...

BTW. in Debian 5 libc 2.7, pthread_spin_lock uses ldcw and 
pthread_spin_unlock uses a single write (just like the kernel spinlock 
implementation). In Debian-ports libc 2.18, both pthread_spin_lock and 
pthread_spin_unlock call the kernel syscall page. What was the reason for 
switching to a less efficient implementation?

Mikulas
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On Mon, 2 Jun 2014, Mikulas Patocka wrote:

> 
> 
> On Sun, 1 Jun 2014, John David Anglin wrote:
> 
> > On 1-Jun-14, at 3:20 PM, Peter Zijlstra wrote:
> > 
> > > > If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg at
> > > > the same time, you break it. ACCESS_ONCE doesn't take the hashed spinlock,
> > > > so, in this case, cmpxchg or xchg isn't really atomic at all.
> > > 
> > > And this is really the first place in the kernel that breaks like this?
> > > I've been using xchg() and cmpxchg() without such consideration for
> > > quite a while.
> > 
> > I believe Mikulas is correct.  Even in a controlled situation where a 
> > cmpxchg operation is used to implement pthread_spin_lock() in userspace, 
> > we found recently that the lock must be released with a cmpxchg 
> > operation and not a simple write on SMP systems. There is a race in the 
> > cache operations or instruction ordering that's not present with the 
> > ldcw instruction.
> > 
> > Dave
> > --
> > John David Anglin	dave.anglin@bell.net
> 
> That is strange.
> 
> Spinlock with cmpxchg on lock and a single write on unlock should work,
> assuming that cmpxchg doesn't write to the target address when it detects
> mismatch (the cmpxchg in the kernel syscall page doesn't do it, it
> nullifies the write instruction on mismatch).
> 
> Do you have some code that reproduces this misbehavior?
> 
> We really need to find out why does it behave this way:
> - is PA-RISC really out of order? (we used to believe that it is in-order
>   and we have empty barrier instructions in the kernel). Does adding the
>   "SYNC" instruction before the write in pthread_spin_unlock fix it?
> - does the processor performs nullified writes unconditionally? Does
>   moving the write in the cmpxchg implementation from the nullified slot
>   to is own branch fix it?
> - does adding a dummy "ldcw" instruction to an unrelated address fix it?
>   Is it that "ldcw" has some magic barrier properties?

- and there is "stw,o" instruction that does ordered store according to 
the specification, so we should test it too...

> I think we need to perform these tests and maybe some more to find out
> what really happened there...
> 
> BTW. in Debian 5 libc 2.7, pthread_spin_lock uses ldcw and 
> pthread_spin_unlock uses a single write (just like the kernel spinlock 
> implementation). In Debian-ports libc 2.18, both pthread_spin_lock and 
> pthread_spin_unlock call the kernel syscall page. What was the reason for 
> switching to a less efficient implementation?
> 
> Mikulas
> 
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Subject: Re: [PATCH] fix a race condition in cancelable mcs spinlocks
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Peter Zijlstra <peterz@infradead.org>, jejb@parisc-linux.org,
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To: Mikulas Patocka <mpatocka@redhat.com>
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On 06/01/2014 01:53 PM, Mikulas Patocka wrote:
> The code in kernel/locking/mcs_spinlock.c is broken.

The osq_lock and osq_unlock functions aren't the only ones that need to 
be changed, the mcs_spin_lock and mcs_spin_unlock have exactly the same 
problem. There aren't certainly problems in other places as well.

> PA-RISC doesn't have xchg or cmpxchg atomic instructions like other
> processors. It only has ldcw and ldcd instructions that load a word (or
> doubleword) from memory and atomically store zero at the same location.
> These instructions can only be used to implement spinlocks, direct
> implementation of other atomic operations is impossible.
>
> Consequently, Linux xchg and cmpxchg functions are implemented in such a
> way that they hash the address, use the hash to index a spinlock, take the
> spinlock, perform the xchg or cmpxchg operation non-atomically and drop
> the spinlock.
>
> If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg at
> the same time, you break it. ACCESS_ONCE doesn't take the hashed spinlock,
> so, in this case, cmpxchg or xchg isn't really atomic at all.
>
> This patch fixes the bug by introducing a new type atomic_pointer_t
> (backed by atomic_long_t) and replacing the offending pointer with it.
> atomic_long_set takes the hashed spinlock, so it avoids the race
> condition.

I believe the mixing of cmpxchg/xchg  and ACCESS_ONCE() is fairly common 
in the kernel, it will be an additional burden on the kernel developers 
to make sure that this kind of breakage won't happen. We also need clear 
documentation somewhere to document this kind of architecture specific 
behavior, maybe in the memory-barrier.txt.
> Index: linux-3.15-rc7/kernel/locking/mcs_spinlock.h
> ===================================================================
> --- linux-3.15-rc7.orig/kernel/locking/mcs_spinlock.h	2014-05-31 19:01:01.000000000 +0200
> +++ linux-3.15-rc7/kernel/locking/mcs_spinlock.h	2014-06-01 14:17:49.000000000 +0200
> @@ -13,6 +13,7 @@
>   #define __LINUX_MCS_SPINLOCK_H
>
>   #include<asm/mcs_spinlock.h>
> +#include<linux/atomic.h>
>
>   struct mcs_spinlock {
>   	struct mcs_spinlock *next;
> @@ -119,7 +120,8 @@ void mcs_spin_unlock(struct mcs_spinlock
>    */
>
>   struct optimistic_spin_queue {
> -	struct optimistic_spin_queue *next, *prev;
> +	atomic_pointer_t next;
> +	struct optimistic_spin_queue *prev;
>   	int locked; /* 1 if lock acquired */
>   };

Is there a way to do it without changing the pointer type? It will make 
the code harder to read and understand.

-Longman

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On Mon, 2014-06-02 at 10:14 -0400, Waiman Long wrote:
> On 06/01/2014 01:53 PM, Mikulas Patocka wrote:
> >   struct optimistic_spin_queue {
> > -	struct optimistic_spin_queue *next, *prev;
> > +	atomic_pointer_t next;
> > +	struct optimistic_spin_queue *prev;
> >   	int locked; /* 1 if lock acquired */
> >   };
> 
> Is there a way to do it without changing the pointer type? It will make 
> the code harder to read and understand.

I agree that it would be nice if there is a way to fix this without
changing the pointer type of "next". The change of the type to
atomic_pointer_t might make it less obvious what "next" is for. This is
then compounded with "prev" being kept as a pointer to
optimistic_spin_queue, which can further make it appear as if "next" may
potentially point to something different.



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On 6/2/2014 10:02 AM, Mikulas Patocka wrote:
>
> On Mon, 2 Jun 2014, Mikulas Patocka wrote:
>
>>
>> On Sun, 1 Jun 2014, John David Anglin wrote:
>>
>>> On 1-Jun-14, at 3:20 PM, Peter Zijlstra wrote:
>>>
>>>>> If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg at
>>>>> the same time, you break it. ACCESS_ONCE doesn't take the hashed spinlock,
>>>>> so, in this case, cmpxchg or xchg isn't really atomic at all.
>>>> And this is really the first place in the kernel that breaks like this?
>>>> I've been using xchg() and cmpxchg() without such consideration for
>>>> quite a while.
>>> I believe Mikulas is correct.  Even in a controlled situation where a
>>> cmpxchg operation is used to implement pthread_spin_lock() in userspace,
>>> we found recently that the lock must be released with a cmpxchg
>>> operation and not a simple write on SMP systems. There is a race in the
>>> cache operations or instruction ordering that's not present with the
>>> ldcw instruction.
>>>
>>> Dave
>>> --
>>> John David Anglin	dave.anglin@bell.net
>> That is strange.
>>
>> Spinlock with cmpxchg on lock and a single write on unlock should work,
>> assuming that cmpxchg doesn't write to the target address when it detects
>> mismatch (the cmpxchg in the kernel syscall page doesn't do it, it
>> nullifies the write instruction on mismatch).
>>
>> Do you have some code that reproduces this misbehavior?
There is a pthread_spin_lock test in the  kyotocabinet package that 
reproduces
this misbehavior.  Essentially, it creates four threads which loop doing 
pthread_spin_lock(),
sched_yield() and then pthread_spin_unlock().  On SMP systems, the test 
hangs with
the pthread_spin_lock locked and no thread holding lock (i.e., unlock 
failed).

The pthread support uses the cmpxchg code in 
arch/parisc/kernel/syscall.S.  This uses
"hashed" locks, etc, in a manner similar to the kernel code.

>>
>> We really need to find out why does it behave this way:
>> - is PA-RISC really out of order? (we used to believe that it is in-order
>>    and we have empty barrier instructions in the kernel). Does adding the
>>    "SYNC" instruction before the write in pthread_spin_unlock fix it?
I tried "SYNC" instruction before write and after the cmpxchg operation both
with.  In the cmpxchg operation, I also tried it with cache flush. I was 
trying to
simulated ldcw behavior.
>> - does the processor performs nullified writes unconditionally? Does
>>    moving the write in the cmpxchg implementation from the nullified slot
>>    to is own branch fix it?
I don't see how the processor can perform nullified writes 
unconditionally although that
might explain the observed symptom.  Didn't try moving the cmpxchg write.

>> - does adding a dummy "ldcw" instruction to an unrelated address fix it?
>>    Is it that "ldcw" has some magic barrier properties?
I had wondered about that.  One can't use %r0 as the instruction target 
as the architecture
manual says that it may then be implemented as a normal load. "ldcw" 
definitely has some magic
cache and barrier properties.  A normal store definitely works with it 
to reset the semaphore.
> - and there is "stw,o" instruction that does ordered store according to
> the specification, so we should test it too...
This doesn't help.

Currently, the Debian eglibc has a pthread_spin_unlock.diff patch that 
resolves the
kyotocabinet bug.  See:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725508

>
>> I think we need to perform these tests and maybe some more to find out
>> what really happened there...
>>
>> BTW. in Debian 5 libc 2.7, pthread_spin_lock uses ldcw and
>> pthread_spin_unlock uses a single write (just like the kernel spinlock
>> implementation). In Debian-ports libc 2.18, both pthread_spin_lock and
>> pthread_spin_unlock call the kernel syscall page. What was the reason for
>> switching to a less efficient implementation?
>>
>> Mikulas
>>
>

Dave

-- 
John David Anglin    dave.anglin@bell.net

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To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
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On Mon, 2 Jun 2014, Paul E. McKenney wrote:

> On Mon, Jun 02, 2014 at 05:19:39AM -0400, Mikulas Patocka wrote:
> > 
> > 
> > On Sun, 1 Jun 2014, Peter Zijlstra wrote:
> > 
> > > On Sun, Jun 01, 2014 at 04:46:26PM -0400, John David Anglin wrote:
> > > > On 1-Jun-14, at 3:20 PM, Peter Zijlstra wrote:
> > > > 
> > > > >>If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg
> > > > >>at
> > > > >>the same time, you break it. ACCESS_ONCE doesn't take the hashed
> > > > >>spinlock,
> > > > >>so, in this case, cmpxchg or xchg isn't really atomic at all.
> > > > >
> > > > >And this is really the first place in the kernel that breaks like this?
> > > > >I've been using xchg() and cmpxchg() without such consideration for
> > > > >quite a while.
> > > > 
> > > > I believe Mikulas is correct.  Even in a controlled situation where a
> > > > cmpxchg operation
> > > > is used to implement pthread_spin_lock() in userspace, we found recently
> > > > that the lock
> > > > must be released with a  cmpxchg operation and not a simple write on SMP
> > > > systems.
> > > > There is a race in the cache operations or instruction ordering that's not
> > > > present with
> > > > the ldcw instruction.
> > > 
> > > Oh, I'm not arguing that. He's quite right that its broken, but this
> > > form of atomic ops is also quite insane and unusual. Most sane machines
> > > don't have this problem.
> > > 
> > > My main concern is how are we going to avoid breaking parisc (and I
> > > think sparc32, which is similarly retarded) in the future; we should
> > > invest in machinery to find and detect these things.
> > 
> > Grep the kernel for "\<xchg\>" and "\<cmpxchg\>" and replace them with 
> > atomic types and atomic access functions.
> 
> Not so good for pointers, though.  Defeats type-checking, for one thing.
> An example of this is use of xchg() for atomically enqueuing RCU callbacks
> in kernel/rcu/tree_plugin.h.
> 
> I still like the idea of PA-RISC's compiler implementing ACCESS_ONCE()
> as needed to make things work on that architecture.
> 
> 							Thanx, Paul

We can perform some preprocessor tricks to check the pointer type. See my 
next patch that adds type checking - you declare the variable with

	atomic_pointer(struct optimistic_spin_queue *) next;

and the pointer type is checked on all atomic operations involving this 
variable.


The problem with ACCESS_ONCE is that people omit it. There's plenty of 
places in the kernel where ACCESS_ONCE should be used and isn't 
(i_size_read, i_size_write, rt_mutex_is_locked...). Nothing really forces 
people to write the code correctly and use it.

atomic_pointer (and other atomic types) have the advantage that they force 
people to use the atomic functions to access them. If you read or write to 
the variable directly, it won't compile.

I think the best solution is to wrap the critical pointers with 
atomic_pointer(pointer_type *) and let the compiler report errors on all 
places where it is used unsafely.

Mikulas
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v2] introduce atomic_pointer to fix a race condition in
 cancelable mcs spinlocks
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The cancelable MCS spinlocks introduced in
fb0527bd5ea99bfeb2dd91e3c1433ecf745d6b99 break the kernel on PA-RISC.

How to reproduce:
* Use a machine with two dual-core PA-8900 processors.
* Run the LVM testsuite and compile the kernel in an endless loop at the
  same time.
* Wait for an hour or two and the kernel locks up.

You see some process locked up in osd_lock and osq_unlock:
INFO: rcu_sched self-detected stall on CPU { 2}  (t=18000 jiffies g=247335 c=247334 q=101)
CPU: 2 PID: 21006 Comm: lvm Tainted: G           O  3.15.0-rc7 #9
Backtrace:
 [<000000004013e8a4>] show_stack+0x14/0x20
 [<00000000403016f0>] dump_stack+0x88/0x100
 [<00000000401b8738>] rcu_check_callbacks+0x4a8/0x900
 [<00000000401714c4>] update_process_times+0x64/0xc0
 [<000000004013fa24>] timer_interrupt+0x19c/0x200
 [<00000000401ad8d8>] handle_irq_event_percpu+0xa8/0x238
 [<00000000401b2454>] handle_percpu_irq+0x9c/0xd0
 [<00000000401acc40>] generic_handle_irq+0x40/0x50
 [<00000000401408cc>] do_cpu_irq_mask+0x1ac/0x298
 [<000000004012c074>] intr_return+0x0/0xc
 [<00000000401a609c>] osq_lock+0xc4/0x178
 [<0000000040138d24>] __mutex_lock_slowpath+0x1cc/0x290
 [<0000000040138e78>] mutex_lock+0x90/0x98
 [<00000000402a5614>] kernfs_activate+0x6c/0x1a0
 [<00000000402a59e0>] kernfs_add_one+0x140/0x190
 [<00000000402a75ec>] __kernfs_create_file+0xa4/0xf8

INFO: rcu_sched self-detected stall on CPU { 3}  (t=18473 jiffies g=247335 c=247334 q=101)
CPU: 3 PID: 21051 Comm: udevd Tainted: G           O  3.15.0-rc7 #9
Backtrace:
 [<000000004013e8a4>] show_stack+0x14/0x20
 [<00000000403016f0>] dump_stack+0x88/0x100
 [<00000000401b8738>] rcu_check_callbacks+0x4a8/0x900
 [<00000000401714c4>] update_process_times+0x64/0xc0
 [<000000004013fa24>] timer_interrupt+0x19c/0x200
 [<00000000401ad8d8>] handle_irq_event_percpu+0xa8/0x238
 [<00000000401b2454>] handle_percpu_irq+0x9c/0xd0
 [<00000000401acc40>] generic_handle_irq+0x40/0x50
 [<00000000401408cc>] do_cpu_irq_mask+0x1ac/0x298
 [<000000004012c074>] intr_return+0x0/0xc
 [<00000000401a6220>] osq_unlock+0xd0/0xf8
 [<0000000040138dcc>] __mutex_lock_slowpath+0x274/0x290
 [<0000000040138e78>] mutex_lock+0x90/0x98
 [<00000000402a3a90>] kernfs_dop_revalidate+0x48/0x108
 [<0000000040233310>] lookup_fast+0x320/0x348
 [<0000000040234600>] link_path_walk+0x190/0x9d8


The code in kernel/locking/mcs_spinlock.c is broken.

PA-RISC doesn't have xchg or cmpxchg atomic instructions like other
processors. It only has ldcw and ldcd instructions that load a word (or
doubleword) from memory and atomically store zero at the same location.
These instructions can only be used to implement spinlocks, direct
implementation of other atomic operations is impossible.

Consequently, Linux xchg and cmpxchg functions are implemented in such a
way that they hash the address, use the hash to index a spinlock, take the
spinlock, perform the xchg or cmpxchg operation non-atomically and drop
the spinlock.

If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg at
the same time, you break it. ACCESS_ONCE doesn't take the hashed spinlock,
so, in this case, cmpxchg or xchg isn't really atomic at all.

This patch fixes the bug by introducing a new type atomic_pointer and
replacing the offending pointer with it. atomic_pointer_set (calling
atomic_long_set) takes the hashed spinlock, so it avoids the race
condition. We perform some gcc-specific compiler tricks to warn on pointer
type mismatch.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
 include/asm-generic/atomic-long.h |   27 +++++++++++++++++++++++++++
 kernel/locking/mcs_spinlock.c     |   16 ++++++++--------
 kernel/locking/mcs_spinlock.h     |    4 +++-
 3 files changed, 38 insertions(+), 9 deletions(-)

Index: linux-3.15-rc8/kernel/locking/mcs_spinlock.c
===================================================================
--- linux-3.15-rc8.orig/kernel/locking/mcs_spinlock.c	2014-06-02 17:11:16.000000000 +0200
+++ linux-3.15-rc8/kernel/locking/mcs_spinlock.c	2014-06-02 17:11:50.000000000 +0200
@@ -47,8 +47,8 @@ osq_wait_next(struct optimistic_spin_que
 		 * wait for either @lock to point to us, through its Step-B, or
 		 * wait for a new @node->next from its Step-C.
 		 */
-		if (node->next) {
-			next = xchg(&node->next, NULL);
+		if (atomic_pointer_read(&node->next)) {
+			next = atomic_pointer_xchg(&node->next, NULL);
 			if (next)
 				break;
 		}
@@ -65,13 +65,13 @@ bool osq_lock(struct optimistic_spin_que
 	struct optimistic_spin_queue *prev, *next;
 
 	node->locked = 0;
-	node->next = NULL;
+	atomic_pointer_set(&node->next, NULL);
 
 	node->prev = prev = xchg(lock, node);
 	if (likely(prev == NULL))
 		return true;
 
-	ACCESS_ONCE(prev->next) = node;
+	atomic_pointer_set(&prev->next, node);
 
 	/*
 	 * Normally @prev is untouchable after the above store; because at that
@@ -103,8 +103,8 @@ unqueue:
 	 */
 
 	for (;;) {
-		if (prev->next == node &&
-		    cmpxchg(&prev->next, node, NULL) == node)
+		if (atomic_pointer_read(&prev->next) == node &&
+		    atomic_pointer_cmpxchg(&prev->next, node, NULL) == node)
 			break;
 
 		/*
@@ -144,7 +144,7 @@ unqueue:
 	 */
 
 	ACCESS_ONCE(next->prev) = prev;
-	ACCESS_ONCE(prev->next) = next;
+	atomic_pointer_set(&prev->next, next);
 
 	return false;
 }
@@ -163,7 +163,7 @@ void osq_unlock(struct optimistic_spin_q
 	/*
 	 * Second most likely case.
 	 */
-	next = xchg(&node->next, NULL);
+	next = atomic_pointer_xchg(&node->next, NULL);
 	if (next) {
 		ACCESS_ONCE(next->locked) = 1;
 		return;
Index: linux-3.15-rc8/kernel/locking/mcs_spinlock.h
===================================================================
--- linux-3.15-rc8.orig/kernel/locking/mcs_spinlock.h	2014-06-02 17:11:16.000000000 +0200
+++ linux-3.15-rc8/kernel/locking/mcs_spinlock.h	2014-06-02 17:11:50.000000000 +0200
@@ -13,6 +13,7 @@
 #define __LINUX_MCS_SPINLOCK_H
 
 #include <asm/mcs_spinlock.h>
+#include <linux/atomic.h>
 
 struct mcs_spinlock {
 	struct mcs_spinlock *next;
@@ -119,7 +120,8 @@ void mcs_spin_unlock(struct mcs_spinlock
  */
 
 struct optimistic_spin_queue {
-	struct optimistic_spin_queue *next, *prev;
+	atomic_pointer(struct optimistic_spin_queue *) next;
+	struct optimistic_spin_queue *prev;
 	int locked; /* 1 if lock acquired */
 };
 
Index: linux-3.15-rc8/include/asm-generic/atomic-long.h
===================================================================
--- linux-3.15-rc8.orig/include/asm-generic/atomic-long.h	2014-06-02 17:11:17.000000000 +0200
+++ linux-3.15-rc8/include/asm-generic/atomic-long.h	2014-06-02 17:11:50.000000000 +0200
@@ -255,4 +255,31 @@ static inline long atomic_long_add_unles
 
 #endif  /*  BITS_PER_LONG == 64  */
 
+#define atomic_pointer(type)						\
+union {									\
+	atomic_long_t __a;						\
+	type __t;							\
+	char __check_sizeof[sizeof(type) == sizeof(long) ? 1 : -1];	\
+}
+
+#define ATOMIC_POINTER_INIT(i)	{ .__t = (i) }
+
+#define atomic_pointer_read(v)	((typeof((v)->__t))atomic_long_read(&(v)->__a))
+
+#define atomic_pointer_set(v, i)		({			\
+	typeof((v)->__t) __i = (i);					\
+	atomic_long_set(&(v)->__a, (long)(__i));			\
+})
+
+#define atomic_pointer_xchg(v, i)		({			\
+	typeof((v)->__t) __i = (i);					\
+	(typeof((v)->__t))atomic_long_xchg(&(v)->__a, (long)(__i));	\
+})
+
+#define atomic_pointer_cmpxchg(v, old, new)	({			\
+	typeof((v)->__t) __old = (old);					\
+	typeof((v)->__t) __new = (new);					\
+	(typeof((v)->__t))atomic_long_cmpxchg(&(v)->__a, (long)(__old), (long)(__new));\
+})
+
 #endif  /*  _ASM_GENERIC_ATOMIC_LONG_H  */

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From - Thu Nov 08 21:10:23 2018
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From: Peter Zijlstra <peterz@infradead.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
 cancelable mcs spinlocks
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	jejb@parisc-linux.org, deller@gmx.de,
	John David Anglin <dave.anglin@bell.net>,
	linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org,
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	davidlohr@hp.com, hpa@zytor.com, andi@firstfloor.org, aswin@hp.com,
	scott.norton@hp.com, Jason Low <jason.low2@hp.com>
To: Mikulas Patocka <mpatocka@redhat.com>
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On Mon, Jun 02, 2014 at 12:00:45PM -0400, Mikulas Patocka wrote:
>  struct optimistic_spin_queue {
> -	struct optimistic_spin_queue *next, *prev;
> +	atomic_pointer(struct optimistic_spin_queue *) next;
> +	struct optimistic_spin_queue *prev;
>  	int locked; /* 1 if lock acquired */
>  };
>  
> Index: linux-3.15-rc8/include/asm-generic/atomic-long.h
> ===================================================================
> --- linux-3.15-rc8.orig/include/asm-generic/atomic-long.h	2014-06-02 17:11:17.000000000 +0200
> +++ linux-3.15-rc8/include/asm-generic/atomic-long.h	2014-06-02 17:11:50.000000000 +0200
> @@ -255,4 +255,31 @@ static inline long atomic_long_add_unles
>  
>  #endif  /*  BITS_PER_LONG == 64  */
>  
> +#define atomic_pointer(type)						\
> +union {									\
> +	atomic_long_t __a;						\
> +	type __t;							\
> +	char __check_sizeof[sizeof(type) == sizeof(long) ? 1 : -1];	\
> +}

That's still entirely disgusting, and afaict entirely redundant. You can
do that test in the operators below just fine.

> +#define ATOMIC_POINTER_INIT(i)	{ .__t = (i) }
> +
> +#define atomic_pointer_read(v)	((typeof((v)->__t))atomic_long_read(&(v)->__a))
> +
> +#define atomic_pointer_set(v, i)		({			\
> +	typeof((v)->__t) __i = (i);					\
> +	atomic_long_set(&(v)->__a, (long)(__i));			\
> +})
> +
> +#define atomic_pointer_xchg(v, i)		({			\
> +	typeof((v)->__t) __i = (i);					\
> +	(typeof((v)->__t))atomic_long_xchg(&(v)->__a, (long)(__i));	\
> +})
> +
> +#define atomic_pointer_cmpxchg(v, old, new)	({			\
> +	typeof((v)->__t) __old = (old);					\
> +	typeof((v)->__t) __new = (new);					\
> +	(typeof((v)->__t))atomic_long_cmpxchg(&(v)->__a, (long)(__old), (long)(__new));\
> +})

And I can't say I'm a particular fan of these ops either, as alternative
I'm almost inclined to just exclude parisc from using opt spinning.

That said, this patch still doesn't address the far more interesting
problem of actually finding these issues for these few weird archs.


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	John David Anglin <dave.anglin@bell.net>,
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To: Mikulas Patocka <mpatocka@redhat.com>
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On Mon, Jun 02, 2014 at 06:25:25PM +0200, Peter Zijlstra wrote:
> I'm almost inclined to just exclude parisc from using opt spinning.
> 
> That said, this patch still doesn't address the far more interesting
> problem of actually finding these issues for these few weird archs.

So why do these archs provide xchg() and cmpxchg() at all? Wouldn't it
be much simpler if archs that cannot sanely do this, not provide these
primitives at all?
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Cc: Peter Zijlstra <peterz@infradead.org>,
	John David Anglin <dave.anglin@bell.net>,
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To: Mikulas Patocka <mpatocka@redhat.com>
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On Mon, Jun 02, 2014 at 11:57:14AM -0400, Mikulas Patocka wrote:
> 
> 
> On Mon, 2 Jun 2014, Paul E. McKenney wrote:
> 
> > On Mon, Jun 02, 2014 at 05:19:39AM -0400, Mikulas Patocka wrote:
> > > 
> > > 
> > > On Sun, 1 Jun 2014, Peter Zijlstra wrote:
> > > 
> > > > On Sun, Jun 01, 2014 at 04:46:26PM -0400, John David Anglin wrote:
> > > > > On 1-Jun-14, at 3:20 PM, Peter Zijlstra wrote:
> > > > > 
> > > > > >>If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg
> > > > > >>at
> > > > > >>the same time, you break it. ACCESS_ONCE doesn't take the hashed
> > > > > >>spinlock,
> > > > > >>so, in this case, cmpxchg or xchg isn't really atomic at all.
> > > > > >
> > > > > >And this is really the first place in the kernel that breaks like this?
> > > > > >I've been using xchg() and cmpxchg() without such consideration for
> > > > > >quite a while.
> > > > > 
> > > > > I believe Mikulas is correct.  Even in a controlled situation where a
> > > > > cmpxchg operation
> > > > > is used to implement pthread_spin_lock() in userspace, we found recently
> > > > > that the lock
> > > > > must be released with a  cmpxchg operation and not a simple write on SMP
> > > > > systems.
> > > > > There is a race in the cache operations or instruction ordering that's not
> > > > > present with
> > > > > the ldcw instruction.
> > > > 
> > > > Oh, I'm not arguing that. He's quite right that its broken, but this
> > > > form of atomic ops is also quite insane and unusual. Most sane machines
> > > > don't have this problem.
> > > > 
> > > > My main concern is how are we going to avoid breaking parisc (and I
> > > > think sparc32, which is similarly retarded) in the future; we should
> > > > invest in machinery to find and detect these things.
> > > 
> > > Grep the kernel for "\<xchg\>" and "\<cmpxchg\>" and replace them with 
> > > atomic types and atomic access functions.
> > 
> > Not so good for pointers, though.  Defeats type-checking, for one thing.
> > An example of this is use of xchg() for atomically enqueuing RCU callbacks
> > in kernel/rcu/tree_plugin.h.
> > 
> > I still like the idea of PA-RISC's compiler implementing ACCESS_ONCE()
> > as needed to make things work on that architecture.
> > 
> > 							Thanx, Paul
> 
> We can perform some preprocessor tricks to check the pointer type. See my 
> next patch that adds type checking - you declare the variable with
> 
> 	atomic_pointer(struct optimistic_spin_queue *) next;
> 
> and the pointer type is checked on all atomic operations involving this 
> variable.

The special handling of ACCESS_ONCE() on architectures needing it is
way better than this sort of modification, from what I can see.

> The problem with ACCESS_ONCE is that people omit it. There's plenty of 
> places in the kernel where ACCESS_ONCE should be used and isn't 
> (i_size_read, i_size_write, rt_mutex_is_locked...). Nothing really forces 
> people to write the code correctly and use it.

Well, that would be another thing to add to the compiler modification,
have it check for a variable passed to xchg() or cmpxchg() and assigned
without the benefit of ACCESS_ONCE().  Of course, there will be false
positives, such as non-atomic assignments during initialization and
cleanup that cannot race with xchg() or cmpxchg().  Also cases where
all the xchg() and cmpxchg() are done under a lock, so that normal
assignments under that lock are OK.

Alternatively, perhaps a coccinelle script or change to sparse, smatch,
or whatever could help here.

> atomic_pointer (and other atomic types) have the advantage that they force 
> people to use the atomic functions to access them. If you read or write to 
> the variable directly, it won't compile.

Including the safe uses of normal assignment called out above?

> I think the best solution is to wrap the critical pointers with 
> atomic_pointer(pointer_type *) and let the compiler report errors on all 
> places where it is used unsafely.

I understand that you like this approach, but I am not at all convinced.

							Thanx, Paul

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Cc: Mikulas Patocka <mpatocka@redhat.com>,
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On Mon, Jun 02, 2014 at 06:25:25PM +0200, Peter Zijlstra wrote:
> On Mon, Jun 02, 2014 at 12:00:45PM -0400, Mikulas Patocka wrote:
> >  struct optimistic_spin_queue {
> > -	struct optimistic_spin_queue *next, *prev;
> > +	atomic_pointer(struct optimistic_spin_queue *) next;
> > +	struct optimistic_spin_queue *prev;
> >  	int locked; /* 1 if lock acquired */
> >  };
> >  
> > Index: linux-3.15-rc8/include/asm-generic/atomic-long.h
> > ===================================================================
> > --- linux-3.15-rc8.orig/include/asm-generic/atomic-long.h	2014-06-02 17:11:17.000000000 +0200
> > +++ linux-3.15-rc8/include/asm-generic/atomic-long.h	2014-06-02 17:11:50.000000000 +0200
> > @@ -255,4 +255,31 @@ static inline long atomic_long_add_unles
> >  
> >  #endif  /*  BITS_PER_LONG == 64  */
> >  
> > +#define atomic_pointer(type)						\
> > +union {									\
> > +	atomic_long_t __a;						\
> > +	type __t;							\
> > +	char __check_sizeof[sizeof(type) == sizeof(long) ? 1 : -1];	\
> > +}
> 
> That's still entirely disgusting, and afaict entirely redundant. You can
> do that test in the operators below just fine.
> 
> > +#define ATOMIC_POINTER_INIT(i)	{ .__t = (i) }
> > +
> > +#define atomic_pointer_read(v)	((typeof((v)->__t))atomic_long_read(&(v)->__a))
> > +
> > +#define atomic_pointer_set(v, i)		({			\
> > +	typeof((v)->__t) __i = (i);					\
> > +	atomic_long_set(&(v)->__a, (long)(__i));			\
> > +})
> > +
> > +#define atomic_pointer_xchg(v, i)		({			\
> > +	typeof((v)->__t) __i = (i);					\
> > +	(typeof((v)->__t))atomic_long_xchg(&(v)->__a, (long)(__i));	\
> > +})
> > +
> > +#define atomic_pointer_cmpxchg(v, old, new)	({			\
> > +	typeof((v)->__t) __old = (old);					\
> > +	typeof((v)->__t) __new = (new);					\
> > +	(typeof((v)->__t))atomic_long_cmpxchg(&(v)->__a, (long)(__old), (long)(__new));\
> > +})
> 
> And I can't say I'm a particular fan of these ops either, as alternative
> I'm almost inclined to just exclude parisc from using opt spinning.

That is an excellent point for this particular issue.  Do parisc systems
really support enough CPUs to make queued spinlocks worthwhile?  If not,
maybe we should just have parisc stick with traditional spinlocks.

> That said, this patch still doesn't address the far more interesting
> problem of actually finding these issues for these few weird archs.

Indeed.  And finding other lower-probability failures due to other
atomic manipulations of pointers that are also accessed with normal
loads and stores.

							Thanx, Paul

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On Mon, Jun 02, 2014 at 06:30:32PM +0200, Peter Zijlstra wrote:
> On Mon, Jun 02, 2014 at 06:25:25PM +0200, Peter Zijlstra wrote:
> > I'm almost inclined to just exclude parisc from using opt spinning.
> > 
> > That said, this patch still doesn't address the far more interesting
> > problem of actually finding these issues for these few weird archs.
> 
> So why do these archs provide xchg() and cmpxchg() at all? Wouldn't it
> be much simpler if archs that cannot sanely do this, not provide these
> primitives at all?

Such architectures would also need to avoid NO_HZ_FULL_SYSIDLE and
RCU_NOCB_CPU, but those are probably entirely reasonable restrictions.

							Thanx, Paul

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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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On Mon, 2014-06-02 at 12:00 -0400, Mikulas Patocka wrote:
> If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg at
> the same time, you break it. ACCESS_ONCE doesn't take the hashed spinlock,
> so, in this case, cmpxchg or xchg isn't really atomic at all.

So if the problem is using ACCESS_ONCE writes with cmpxchg and xchg at
the same time, would the below change address this problem?

-----
diff --git a/kernel/locking/mcs_spinlock.c b/kernel/locking/mcs_spinlock.c
index 838dc9e..8396721 100644
--- a/kernel/locking/mcs_spinlock.c
+++ b/kernel/locking/mcs_spinlock.c
@@ -71,7 +71,7 @@ bool osq_lock(struct optimistic_spin_queue **lock)
 	if (likely(prev == NULL))
 		return true;
 
-	ACCESS_ONCE(prev->next) = node;
+	xchg(&prev->next, node);
 
 	/*
 	 * Normally @prev is untouchable after the above store; because at that
@@ -144,7 +144,7 @@ unqueue:
 	 */
 
 	ACCESS_ONCE(next->prev) = prev;
-	ACCESS_ONCE(prev->next) = next;
+	xchg(&prev->next, next);
 
 	return false;
 }



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On Mon, Jun 02, 2014 at 09:50:10AM -0700, Jason Low wrote:
> On Mon, 2014-06-02 at 12:00 -0400, Mikulas Patocka wrote:
> > If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg at
> > the same time, you break it. ACCESS_ONCE doesn't take the hashed spinlock,
> > so, in this case, cmpxchg or xchg isn't really atomic at all.
> 
> So if the problem is using ACCESS_ONCE writes with cmpxchg and xchg at
> the same time, would the below change address this problem?

And one could use cmpxchg() or atomic_add_return(..., 0) to read a value
out.  Probably at the cost of some performance impact, though.

							Thanx, Paul

> -----
> diff --git a/kernel/locking/mcs_spinlock.c b/kernel/locking/mcs_spinlock.c
> index 838dc9e..8396721 100644
> --- a/kernel/locking/mcs_spinlock.c
> +++ b/kernel/locking/mcs_spinlock.c
> @@ -71,7 +71,7 @@ bool osq_lock(struct optimistic_spin_queue **lock)
>  	if (likely(prev == NULL))
>  		return true;
> 
> -	ACCESS_ONCE(prev->next) = node;
> +	xchg(&prev->next, node);
> 
>  	/*
>  	 * Normally @prev is untouchable after the above store; because at that
> @@ -144,7 +144,7 @@ unqueue:
>  	 */
> 
>  	ACCESS_ONCE(next->prev) = prev;
> -	ACCESS_ONCE(prev->next) = next;
> +	xchg(&prev->next, next);
> 
>  	return false;
>  }
> 
> 

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To: Peter Zijlstra <peterz@infradead.org>
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On Mon, Jun 2, 2014 at 9:25 AM, Peter Zijlstra <peterz@infradead.org> wrote:
>
> And I can't say I'm a particular fan of these ops either, as alternative
> I'm almost inclined to just exclude parisc from using opt spinning.

Please do.

There is no way in hell that we should introduce a magic new
atomic_pointer thing for parisc. And the idea somebody had to change
ACCESS_ONCE() for PA-RISC (I'm not going to go back to find who to
blame) is just horribly wrong too, since it's not even necessary for
any normal use: the special "load-and-store-zero" instruction isn't
actually used for "real" data, it's used only for the special
spinlocks afaik, so doing it for all ACCESS_ONCE() users would be
wrong even on PA-RISC. For any normal data, the usual "just load the
value, making sure the compiler doesn't reload it" is perfectly fine -
even on PA-RISC.

Now, if PA-RISC was a major architecture, we'd have to figure this
out. But as it is, PA-RISC is just about the shittiest RISC ever
invented (with original sparc being a strong contender), and let's
face it, nobody really uses it.  It's a "fun project", but it is not
something that we should use to mess up either ACCESS_ONCE() or the
MCS locks.

Just make PA-RISC use its own locks, not any of the new fancy ones.

              Linus
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On Mon, 2014-06-02 at 10:09 -0700, Linus Torvalds wrote:
> On Mon, Jun 2, 2014 at 9:25 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> >
> > And I can't say I'm a particular fan of these ops either, as alternative
> > I'm almost inclined to just exclude parisc from using opt spinning.
> 
> Please do.

I agree, this is the best way out of this mess. Furthermore, it would
also be nice to consolidate opt spinning in a common CONFIG option --
right now mutexes and rwsems create their own dependencies.


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On Mon, 2014-06-02 at 09:43 -0700, Paul E. McKenney wrote:
> On Mon, Jun 02, 2014 at 06:25:25PM +0200, Peter Zijlstra wrote:
> > On Mon, Jun 02, 2014 at 12:00:45PM -0400, Mikulas Patocka wrote:
> > >  struct optimistic_spin_queue {
> > > -	struct optimistic_spin_queue *next, *prev;
> > > +	atomic_pointer(struct optimistic_spin_queue *) next;
> > > +	struct optimistic_spin_queue *prev;
> > >  	int locked; /* 1 if lock acquired */
> > >  };
> > >  
> > > Index: linux-3.15-rc8/include/asm-generic/atomic-long.h
> > > ===================================================================
> > > --- linux-3.15-rc8.orig/include/asm-generic/atomic-long.h	2014-06-02 17:11:17.000000000 +0200
> > > +++ linux-3.15-rc8/include/asm-generic/atomic-long.h	2014-06-02 17:11:50.000000000 +0200
> > > @@ -255,4 +255,31 @@ static inline long atomic_long_add_unles
> > >  
> > >  #endif  /*  BITS_PER_LONG == 64  */
> > >  
> > > +#define atomic_pointer(type)						\
> > > +union {									\
> > > +	atomic_long_t __a;						\
> > > +	type __t;							\
> > > +	char __check_sizeof[sizeof(type) == sizeof(long) ? 1 : -1];	\
> > > +}
> > 
> > That's still entirely disgusting, and afaict entirely redundant. You can
> > do that test in the operators below just fine.
> > 
> > > +#define ATOMIC_POINTER_INIT(i)	{ .__t = (i) }
> > > +
> > > +#define atomic_pointer_read(v)	((typeof((v)->__t))atomic_long_read(&(v)->__a))
> > > +
> > > +#define atomic_pointer_set(v, i)		({			\
> > > +	typeof((v)->__t) __i = (i);					\
> > > +	atomic_long_set(&(v)->__a, (long)(__i));			\
> > > +})
> > > +
> > > +#define atomic_pointer_xchg(v, i)		({			\
> > > +	typeof((v)->__t) __i = (i);					\
> > > +	(typeof((v)->__t))atomic_long_xchg(&(v)->__a, (long)(__i));	\
> > > +})
> > > +
> > > +#define atomic_pointer_cmpxchg(v, old, new)	({			\
> > > +	typeof((v)->__t) __old = (old);					\
> > > +	typeof((v)->__t) __new = (new);					\
> > > +	(typeof((v)->__t))atomic_long_cmpxchg(&(v)->__a, (long)(__old), (long)(__new));\
> > > +})
> > 
> > And I can't say I'm a particular fan of these ops either, as alternative
> > I'm almost inclined to just exclude parisc from using opt spinning.
> 
> That is an excellent point for this particular issue.  Do parisc systems
> really support enough CPUs to make queued spinlocks worthwhile?  If not,
> maybe we should just have parisc stick with traditional spinlocks.

Yes and No.  No for Linux because the only hyper CPU system is the
superdome, which we've never managed to boot linux on (it has some
complexities in the Bus architecture) and we're not likely to try
because the installations tend to cost north of US$1m.  For the Server
systems we do have a few high CPU count ones, but we lost access to them
when HP dismantled the parisc linux lab.  Currently the standard is
about 4 cpus.

I think just not using queued spinlocks is fine for us.  Should anyone
ever try the large CPU systems, we can revisit.

James


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To: Jason Low <jason.low2@hp.com>
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On 06/02/2014 12:50 PM, Jason Low wrote:
> On Mon, 2014-06-02 at 12:00 -0400, Mikulas Patocka wrote:
>> If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg at
>> the same time, you break it. ACCESS_ONCE doesn't take the hashed spinlock,
>> so, in this case, cmpxchg or xchg isn't really atomic at all.
> So if the problem is using ACCESS_ONCE writes with cmpxchg and xchg at
> the same time, would the below change address this problem?
>
> -----
> diff --git a/kernel/locking/mcs_spinlock.c b/kernel/locking/mcs_spinlock.c
> index 838dc9e..8396721 100644
> --- a/kernel/locking/mcs_spinlock.c
> +++ b/kernel/locking/mcs_spinlock.c
> @@ -71,7 +71,7 @@ bool osq_lock(struct optimistic_spin_queue **lock)
>   	if (likely(prev == NULL))
>   		return true;
>
> -	ACCESS_ONCE(prev->next) = node;
> +	xchg(&prev->next, node);
>
>   	/*
>   	 * Normally @prev is untouchable after the above store; because at that
> @@ -144,7 +144,7 @@ unqueue:
>   	 */
>
>   	ACCESS_ONCE(next->prev) = prev;
> -	ACCESS_ONCE(prev->next) = next;
> +	xchg(&prev->next, next);
>
>   	return false;
>   }
>
>

Doing an xchg is a very expensive operation compared with ACCESS_ONCE. I 
will not suggest doing that to make it right for PA-RISC at the expense 
of performance in other architectures.

-Longman

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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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On 06/02/2014 12:43 PM, Paul E. McKenney wrote:
> On Mon, Jun 02, 2014 at 06:25:25PM +0200, Peter Zijlstra wrote:
>> On Mon, Jun 02, 2014 at 12:00:45PM -0400, Mikulas Patocka wrote:
>>>   struct optimistic_spin_queue {
>>> -	struct optimistic_spin_queue *next, *prev;
>>> +	atomic_pointer(struct optimistic_spin_queue *) next;
>>> +	struct optimistic_spin_queue *prev;
>>>   	int locked; /* 1 if lock acquired */
>>>   };
>>>
>>> Index: linux-3.15-rc8/include/asm-generic/atomic-long.h
>>> ===================================================================
>>> --- linux-3.15-rc8.orig/include/asm-generic/atomic-long.h	2014-06-02 17:11:17.000000000 +0200
>>> +++ linux-3.15-rc8/include/asm-generic/atomic-long.h	2014-06-02 17:11:50.000000000 +0200
>>> @@ -255,4 +255,31 @@ static inline long atomic_long_add_unles
>>>
>>>   #endif  /*  BITS_PER_LONG == 64  */
>>>
>>> +#define atomic_pointer(type)						\
>>> +union {									\
>>> +	atomic_long_t __a;						\
>>> +	type __t;							\
>>> +	char __check_sizeof[sizeof(type) == sizeof(long) ? 1 : -1];	\
>>> +}
>> That's still entirely disgusting, and afaict entirely redundant. You can
>> do that test in the operators below just fine.
>>
>>> +#define ATOMIC_POINTER_INIT(i)	{ .__t = (i) }
>>> +
>>> +#define atomic_pointer_read(v)	((typeof((v)->__t))atomic_long_read(&(v)->__a))
>>> +
>>> +#define atomic_pointer_set(v, i)		({			\
>>> +	typeof((v)->__t) __i = (i);					\
>>> +	atomic_long_set(&(v)->__a, (long)(__i));			\
>>> +})
>>> +
>>> +#define atomic_pointer_xchg(v, i)		({			\
>>> +	typeof((v)->__t) __i = (i);					\
>>> +	(typeof((v)->__t))atomic_long_xchg(&(v)->__a, (long)(__i));	\
>>> +})
>>> +
>>> +#define atomic_pointer_cmpxchg(v, old, new)	({			\
>>> +	typeof((v)->__t) __old = (old);					\
>>> +	typeof((v)->__t) __new = (new);					\
>>> +	(typeof((v)->__t))atomic_long_cmpxchg(&(v)->__a, (long)(__old), (long)(__new));\
>>> +})
>> And I can't say I'm a particular fan of these ops either, as alternative
>> I'm almost inclined to just exclude parisc from using opt spinning.
> That is an excellent point for this particular issue.  Do parisc systems
> really support enough CPUs to make queued spinlocks worthwhile?  If not,
> maybe we should just have parisc stick with traditional spinlocks.

The operation in question is the optimistic spinning code of mutex which 
is currently active, I think, for all architectures. It is not related 
to the queued spinlock, though it will have the same problem.

Yes, by disabling the MUTEX_SPIN_ON_OWNER config variable from PA-RISC, 
we can disable optimistic spinning.

-Longman
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On 06/02/2014 12:30 PM, Peter Zijlstra wrote:
> On Mon, Jun 02, 2014 at 06:25:25PM +0200, Peter Zijlstra wrote:
>> I'm almost inclined to just exclude parisc from using opt spinning.
>>
>> That said, this patch still doesn't address the far more interesting
>> problem of actually finding these issues for these few weird archs.
> So why do these archs provide xchg() and cmpxchg() at all? Wouldn't it
> be much simpler if archs that cannot sanely do this, not provide these
> primitives at all?

I believe xchg() and cmpxchg() are used in quite a number of places 
within the generic kernel code. So kernel compilation will fail if those 
APIs aren't provided by an architecture.

-Longman
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On 06/02/2014 10:25 AM, Waiman Long wrote:
> 
> Doing an xchg is a very expensive operation compared with ACCESS_ONCE. I
> will not suggest doing that to make it right for PA-RISC at the expense
> of performance in other architectures.
> 

And of course, this gets into the toxic question: what are reasonable
minimum requirements for Linux?  How far do we need to stretch to
support niche architectures which have very small (Linux) userbases?

	-hpa


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	Peter Zijlstra <peterz@infradead.org>,
	Mikulas Patocka <mpatocka@redhat.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	John David Anglin <dave.anglin@bell.net>,
	Parisc List <linux-parisc@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Paul McKenney <paulmck@linux.vnet.ibm.com>,
	"Vinod, Chegu" <chegu_vinod@hp.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Rik van Riel <riel@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Peter Anvin <hpa@zytor.com>, Andi Kleen <andi@firstfloor.org>,
	"Chandramouleeswaran, Aswin" <aswin@hp.com>,
	"Norton, Scott J" <scott.norton@hp.com>,
	Jason Low <jason.low2@hp.com>
To: Davidlohr Bueso <davidlohr@hp.com>
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On 06/02/2014 01:12 PM, Davidlohr Bueso wrote:
> On Mon, 2014-06-02 at 10:09 -0700, Linus Torvalds wrote:
>> On Mon, Jun 2, 2014 at 9:25 AM, Peter Zijlstra<peterz@infradead.org>  wrote:
>>> And I can't say I'm a particular fan of these ops either, as alternative
>>> I'm almost inclined to just exclude parisc from using opt spinning.
>> Please do.
> I agree, this is the best way out of this mess. Furthermore, it would
> also be nice to consolidate opt spinning in a common CONFIG option --
> right now mutexes and rwsems create their own dependencies.
>

I would suggest adding a RWSEM_SPIN_ON_OWNER to control opt spinning in 
rwsem. Currently MUTEX_SPIN_ON_OWNER is doing that for mutex, and it is 
disabled when mutex debugging is turned on. So I think it is better to 
allow them to be disabled separately.

-Longman

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Subject: Re: [PATCH] fix a race condition in cancelable mcs spinlocks
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To: Peter Zijlstra <peterz@infradead.org>
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On Sun, 2014-06-01 at 23:30 +0200, Peter Zijlstra wrote:
> On Sun, Jun 01, 2014 at 04:46:26PM -0400, John David Anglin wrote:
> > On 1-Jun-14, at 3:20 PM, Peter Zijlstra wrote:
> > 
> > >>If you write to some variable with ACCESS_ONCE and use cmpxchg or xchg
> > >>at
> > >>the same time, you break it. ACCESS_ONCE doesn't take the hashed
> > >>spinlock,
> > >>so, in this case, cmpxchg or xchg isn't really atomic at all.
> > >
> > >And this is really the first place in the kernel that breaks like this?
> > >I've been using xchg() and cmpxchg() without such consideration for
> > >quite a while.
> > 
> > I believe Mikulas is correct.  Even in a controlled situation where a
> > cmpxchg operation
> > is used to implement pthread_spin_lock() in userspace, we found recently
> > that the lock
> > must be released with a  cmpxchg operation and not a simple write on SMP
> > systems.
> > There is a race in the cache operations or instruction ordering that's not
> > present with
> > the ldcw instruction.
> 
> Oh, I'm not arguing that. He's quite right that its broken, but this
> form of atomic ops is also quite insane and unusual. Most sane machines
> don't have this problem.
> 
> My main concern is how are we going to avoid breaking parisc (and I
> think sparc32, which is similarly retarded) in the future; we should
> invest in machinery to find and detect these things.

Architecturally, there is a way we could emulate the atomic exchange
instructions.  We could have a special section of memory that always
triggers a page trap.  In the Q state dtlb trap handlers we could
recognise the "atomic" section of memory and wrap the attempted
modification in a semaphore.  This would add a bit of overhead, but not
a huge amount if we do it in the trap handlers like the TMPALIAS
flushes.  This involves a lot of work for us because we have to decode
the instructions in software, recognise the operations and manually
apply the hashed semaphores around them.  If we did it like this, all
we'd need by way of mainline support is that variables treated as
atomically exchangeable should be in a separate section (because it's a
page fault handler effectively, we need them all separated from "normal"
code).  This would probably require some type of variable marker and if
we ever saw a xchg or cmpxchg on a variable without the marker, we could
break the build.

The way we'd implement is the memory region would be read and write
protected, so all loads and stores trap to the dtlb absent handlers.
For a ldX instruction, if it were not followed by a stX to the same
location, we'd simply give it the value.  For stX followed by ldX for
xchg, we'd take the lock, do the exchange and drop the lock and for stX
not preceded by ldX, we'd take the lock, do the store and drop the lock.
To avoid compromising the protected region, we'd actually back it by a
different area of kernel memory where we make the real modifications,
rather than trying to muck with temporarily inserting a TLB entry.  On
return we'd have to nullify the instructions to avoid re-trapping.
Effectively this has us emulating all load and store operations with a
shadow memory region ... if you know the number of possible address
modes for PARISC, you'll realise that's a non-trivial amount of code.
Plus we'd either have to ensure the shadow region had a permanent TLB
entry or do a full fault and exit the TLB handler (we can't take a
nested TLB fault within the TLB fault handler).

Is it worth it ... definitely not if we can just prevent mainline from
using xchg on our architecture.

James


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From - Thu Nov 08 21:10:24 2018
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From: Peter Zijlstra <peterz@infradead.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
 cancelable mcs spinlocks
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Cc: Mikulas Patocka <mpatocka@redhat.com>,
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On Mon, Jun 02, 2014 at 01:33:34PM -0400, Waiman Long wrote:
> On 06/02/2014 12:30 PM, Peter Zijlstra wrote:
> >On Mon, Jun 02, 2014 at 06:25:25PM +0200, Peter Zijlstra wrote:
> >>I'm almost inclined to just exclude parisc from using opt spinning.
> >>
> >>That said, this patch still doesn't address the far more interesting
> >>problem of actually finding these issues for these few weird archs.
> >So why do these archs provide xchg() and cmpxchg() at all? Wouldn't it
> >be much simpler if archs that cannot sanely do this, not provide these
> >primitives at all?
> 
> I believe xchg() and cmpxchg() are used in quite a number of places within
> the generic kernel code. So kernel compilation will fail if those APIs
> aren't provided by an architecture.

Yep.. so this is going to be painful for a while. But given their
(parisc, sparc32, metag-lock1) constraints, who knows how many of those
uses are actually broken.

So the question is, do you prefer subtly broken code or hard compile
fails? Me, I go for the compile fail.

In any case, this all goes towards what hpa said, what are the minimal
requirements we have for running Linux.
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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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Cc: Waiman Long <waiman.long@hp.com>,
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On Mon, Jun 2, 2014 at 1:05 PM, Peter Zijlstra <peterz@infradead.org> wrote:
>
> So the question is, do you prefer subtly broken code or hard compile
> fails? Me, I go for the compile fail.

The thing is, parisc has a perfectly fine "cmpxchg" implementation in
practice, and ACCESS_ONCE() and friends work fine too for reading.

What the "use a spinlock" approach cannot generally do is:

 - ACCESS_ONCE() to _write_ things doesn't work well. You really
should use "atomic_set()".

 - you may not necessarily be able to mix partial updates (ie
differently sized updates to the same thing) depending on just how the
spinlock hashing works

but both of those are really rare issues and don't affect normal code.

I would not necessarily be opposed to splitting up ACCESS_ONCE() for
reading and for writing, and maybe we could do something special for
the writing path (which tends to be less ctitical). It's really mixing
"ACCESS_ONCE(x)" to _set_ a value, together with atomic ops to update
it, that ends up being problematic.

Maybe there are other issues I can't think of right now. But
basically, parisc _can_ do cmpxchg, it's just that the code needs to
be somewhat sanitized.

Side note: some of the RCU code uses "ACCESS_ONCE()" for
read-modify-write code, which is just f*cking crazy. The semantics are
dubious, and it generally makes gcc create bad code too.

                 Linus
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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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Cc: Waiman Long <waiman.long@hp.com>,
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On Mon, 2014-06-02 at 22:05 +0200, Peter Zijlstra wrote:
> On Mon, Jun 02, 2014 at 01:33:34PM -0400, Waiman Long wrote:
> > On 06/02/2014 12:30 PM, Peter Zijlstra wrote:
> > >On Mon, Jun 02, 2014 at 06:25:25PM +0200, Peter Zijlstra wrote:
> > >>I'm almost inclined to just exclude parisc from using opt spinning.
> > >>
> > >>That said, this patch still doesn't address the far more interesting
> > >>problem of actually finding these issues for these few weird archs.
> > >So why do these archs provide xchg() and cmpxchg() at all? Wouldn't it
> > >be much simpler if archs that cannot sanely do this, not provide these
> > >primitives at all?
> > 
> > I believe xchg() and cmpxchg() are used in quite a number of places within
> > the generic kernel code. So kernel compilation will fail if those APIs
> > aren't provided by an architecture.
> 
> Yep.. so this is going to be painful for a while. But given their
> (parisc, sparc32, metag-lock1) constraints, who knows how many of those
> uses are actually broken.
> 
> So the question is, do you prefer subtly broken code or hard compile
> fails? Me, I go for the compile fail.

The failure is only when a variable that will have an atomic exchange
done on it is updated by a simple operation.  To do this properly, we'd
probably need an update macro we could supply the locking to, and a way
of marking the variable to get the compiler to cause a build error if it
was ever updated improperly, but that's starting to look very similar to
Mikulas' proposal.

James


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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Mon, 2 Jun 2014, Linus Torvalds wrote:

> On Mon, Jun 2, 2014 at 9:25 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> >
> > And I can't say I'm a particular fan of these ops either, as alternative
> > I'm almost inclined to just exclude parisc from using opt spinning.
> 
> Please do.
> 
> There is no way in hell that we should introduce a magic new
> atomic_pointer thing for parisc. And the idea somebody had to change
> ACCESS_ONCE() for PA-RISC (I'm not going to go back to find who to
> blame) is just horribly wrong too, since it's not even necessary for
> any normal use: the special "load-and-store-zero" instruction isn't
> actually used for "real" data, it's used only for the special
> spinlocks afaik, so doing it for all ACCESS_ONCE() users would be
> wrong even on PA-RISC. For any normal data, the usual "just load the
> value, making sure the compiler doesn't reload it" is perfectly fine -
> even on PA-RISC.
> 
> Now, if PA-RISC was a major architecture, we'd have to figure this
> out. But as it is, PA-RISC is just about the shittiest RISC ever
> invented (with original sparc being a strong contender), and let's
> face it, nobody really uses it.  It's a "fun project", but it is not
> something that we should use to mess up either ACCESS_ONCE() or the
> MCS locks.
> 
> Just make PA-RISC use its own locks, not any of the new fancy ones.
> 
>               Linus

And what else do you want to do?

Peter Zijlstra said "I've been using xchg() and cmpxchg() without such 
consideration for quite a while." - so it basically implies that the 
kernel is full of such races, mcs_spinlock is just the most visible one 
that crashes the kernel first.

It's not only parisc - tile32, arc, metag (maybe hexagon) are broken too, 
because they don't have cmpxchg in hardware.

We have atomic_t, atomic64_t, atomic_long_t that can be sanely used even 
on architectures without hardware cmpxchg - so I ask - why can't we have 
atomic_pointer_t with the same semantics? (pointer type conversion issues 
can be solved, as it is done in the PATCH v2)

Mikulas
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To: Mikulas Patocka <mpatocka@redhat.com>
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On Mon, Jun 2, 2014 at 1:46 PM, Mikulas Patocka <mpatocka@redhat.com> wrote:
>
> And what else do you want to do?
>
> Peter Zijlstra said "I've been using xchg() and cmpxchg() without such
> consideration for quite a while." - so it basically implies that the
> kernel is full of such races, mcs_spinlock is just the most visible one
> that crashes the kernel first.

.. so your whole argument is bogus, because it doesn't actually fix
anything else.

Now, something that *would* fix something else is (for example) to
just make "ACCESS_ONCE()" a rvalue so that you cannot use it for
assignments, and then trying to sort out what happens then. It's
possible that the "atomic_pointer_t" would be a part of the solution
to that "what happens then", but THERE IS NO WAY IN HELL we're adding
it for just one architecture and one use that doesn't warrant even
_existing_ on that architecture.

See what I'm saying?

You're not fixing the problem, you're fixing one unimportant detail
that isn't worth fixing that way.

               Linus
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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Mon, Jun 02, 2014 at 01:22:10PM -0700, Linus Torvalds wrote:
> On Mon, Jun 2, 2014 at 1:05 PM, Peter Zijlstra <peterz@infradead.org> wrote:
> >
> > So the question is, do you prefer subtly broken code or hard compile
> > fails? Me, I go for the compile fail.
> 
> The thing is, parisc has a perfectly fine "cmpxchg" implementation in
> practice, and ACCESS_ONCE() and friends work fine too for reading.
> 
> What the "use a spinlock" approach cannot generally do is:
> 
>  - ACCESS_ONCE() to _write_ things doesn't work well. You really
> should use "atomic_set()".
> 
>  - you may not necessarily be able to mix partial updates (ie
> differently sized updates to the same thing) depending on just how the
> spinlock hashing works
> 
> but both of those are really rare issues and don't affect normal code.
> 
> I would not necessarily be opposed to splitting up ACCESS_ONCE() for
> reading and for writing, and maybe we could do something special for
> the writing path (which tends to be less ctitical). It's really mixing
> "ACCESS_ONCE(x)" to _set_ a value, together with atomic ops to update
> it, that ends up being problematic.

Knowing what I know now about how ACCESS_ONCE() is used, I would have
split it for reading and writing to begin with.  Where is that time
machine when you need it?  ;-)

> Maybe there are other issues I can't think of right now. But
> basically, parisc _can_ do cmpxchg, it's just that the code needs to
> be somewhat sanitized.
> 
> Side note: some of the RCU code uses "ACCESS_ONCE()" for
> read-modify-write code, which is just f*cking crazy. The semantics are
> dubious, and it generally makes gcc create bad code too.

A couple of the places are admittedly overkill, for example the pair of:

	ACCESS_ONCE(rsp->n_force_qs_lh)++;

which is just for debug statistics in any case.  I could put these back
to "rsp->n_force_qs_lh++;" without problems, if desired.  (Yeah, I know,
I am overly paranoid.)

However, these cases need a bit more care:

	ACCESS_ONCE(rdp->qlen)++;
	ACCESS_ONCE(rsp->n_barrier_done)++;
	ACCESS_ONCE(sync_rcu_preempt_exp_count)++;

In the ->qlen case, interrupts are disabled and the current CPU is
the only one who can write, so the read need not be volatile.  In the
->n_barrier_done, modifications are done holding ->barrier_mutex, so again
the read need not be volatile.  In the sync_rcu_preempt_exp_count case,
modifications are done holding sync_rcu_preempt_exp_mutex, so once again,
the read need not be volatile.  So I could do something like:

	ACCESS_ONCE(rdp->qlen) = rdp->qlen + 1;

But that still makes gcc generate bad code.

The reason I was not all that worried about this is that these are not
in fastpaths, and the last two are especially not in fastpaths.

Suggestions?

							Thanx, Paul


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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Mon, Jun 02, 2014 at 10:09:35AM -0700, Linus Torvalds wrote:
> On Mon, Jun 2, 2014 at 9:25 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> >
> > And I can't say I'm a particular fan of these ops either, as alternative
> > I'm almost inclined to just exclude parisc from using opt spinning.
> 
> Please do.
> 
> There is no way in hell that we should introduce a magic new
> atomic_pointer thing for parisc. And the idea somebody had to change
> ACCESS_ONCE() for PA-RISC (I'm not going to go back to find who to
> blame) is just horribly wrong too, since it's not even necessary for
> any normal use: the special "load-and-store-zero" instruction isn't
> actually used for "real" data, it's used only for the special
> spinlocks afaik, so doing it for all ACCESS_ONCE() users would be
> wrong even on PA-RISC. For any normal data, the usual "just load the
> value, making sure the compiler doesn't reload it" is perfectly fine -
> even on PA-RISC.

Guilty to charges as read on suggesting PA-RISC-specific ACCESS_ONCE().  ;-)

							Thanx, Paul

> Now, if PA-RISC was a major architecture, we'd have to figure this
> out. But as it is, PA-RISC is just about the shittiest RISC ever
> invented (with original sparc being a strong contender), and let's
> face it, nobody really uses it.  It's a "fun project", but it is not
> something that we should use to mess up either ACCESS_ONCE() or the
> MCS locks.
> 
> Just make PA-RISC use its own locks, not any of the new fancy ones.
> 
>               Linus
> 


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On Mon, Jun 2, 2014 at 2:02 PM, Paul E. McKenney
<paulmck@linux.vnet.ibm.com> wrote:
>
> In the ->qlen case, interrupts are disabled and the current CPU is
> the only one who can write, so the read need not be volatile.  In the
> ->n_barrier_done, modifications are done holding ->barrier_mutex, so again
> the read need not be volatile.  In the sync_rcu_preempt_exp_count case,
> modifications are done holding sync_rcu_preempt_exp_mutex, so once again,
> the read need not be volatile.  So I could do something like:
>
>         ACCESS_ONCE(rdp->qlen) = rdp->qlen + 1;
>
> But that still makes gcc generate bad code
>
> The reason I was not all that worried about this is that these are not
> in fastpaths, and the last two are especially not in fastpaths.
>
> Suggestions?

So I think it probably *works*, but even so splitting it up to use
ACCESS_ONCE() on just the write is probably a better option, if only
because it would then make it much easier to change if we do end up
splitting reads and writes.

Because from a gcc code generation standpoint, using "volatile" will
always be horrible, because gcc will never be able to turn it into a
read-modify-write cycle. Arguable gcc _should_ be able to do that (it
is certainly allowable within the virtual machine definition), but I
understand why it doesn't ("volatile? Let's not optimize anything at
all, because it's special").

So "ACCESS_ONCE() + R-M-W" operation is actually pretty much
guaranteed to be "ACCESS_TWICE()", which may well be ok (performance
may not matter, and even when it does most architectures don't
actually have r-m-w instructions and when they do they aren't always
even faster), but I think it's just horribly horribly bad from a
conceptual and readability standpoint because it's so misleading.

So I'd actually rather see two explicit ACCESS_ONCE() calls - once to
read, once to write. Because that at least describes what is
happening, unlike the current situation.

Put another way: I can understand why you do it, and I can even agree
that it is "correct" from a functionality standpoint. But even despite
that all, I really don't like the construct very much..

              Linus
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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Mon, 2 Jun 2014, Linus Torvalds wrote:

> On Mon, Jun 2, 2014 at 1:46 PM, Mikulas Patocka <mpatocka@redhat.com> wrote:
> >
> > And what else do you want to do?
> >
> > Peter Zijlstra said "I've been using xchg() and cmpxchg() without such
> > consideration for quite a while." - so it basically implies that the
> > kernel is full of such races, mcs_spinlock is just the most visible one
> > that crashes the kernel first.
> 
> .. so your whole argument is bogus, because it doesn't actually fix
> anything else.
>
> Now, something that *would* fix something else is (for example) to
> just make "ACCESS_ONCE()" a rvalue so that you cannot use it for
> assignments, and then trying to sort out what happens then. It's
> possible that the "atomic_pointer_t" would be a part of the solution
> to that "what happens then", but THERE IS NO WAY IN HELL we're adding
> it for just one architecture and one use that doesn't warrant even
> _existing_ on that architecture.

The patch adds atomic_pointer_t for all architectures - it is in the 
common code and it is backed by atomic_long_t (that already exists for all 
architectures). There is no new arch-specific code at all.

When we have atomic_pointer_t, we can find the instances of xchg() and 
cmpxchg() and convert them to atomic_pointer_t (or to other atomic*_t 
types).

When we convert them all, we can drop xchg() and cmpxchg() at all (at 
least from architecture-neutral code).

The problem with xchg() and cmpxchg() is that they are very easy to 
misuse. Peter Zijlstra didn't know that they are not atomic w.r.t. normal 
stores, a lot of other people don't know it too - and if we allow these 
functions to be used, this race condition will reappear in the future 
again and again.

That's why I'm proposing atomic_pointer_t - it guarantees that this race 
condition can't be made.

> See what I'm saying?
> 
> You're not fixing the problem, you're fixing one unimportant detail
> that isn't worth fixing that way.
> 
>                Linus

Regarding reworking ACCESS_ONCE() for reads and writes - the problem is - 
how do you make people use it? ACCESS_ONCE() is already missing at a lot 
of places (it doesn't cause any visible bug on the condition that the 
compiler doesn't split the load or store to multiple accesses), I can 
assume that people will omit ATOMIC_ONCE_STORE() too even if we make it.

Mikulas
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Mon, Jun 02, 2014 at 02:12:30PM -0700, Linus Torvalds wrote:
> On Mon, Jun 2, 2014 at 2:02 PM, Paul E. McKenney
> <paulmck@linux.vnet.ibm.com> wrote:
> >
> > In the ->qlen case, interrupts are disabled and the current CPU is
> > the only one who can write, so the read need not be volatile.  In the
> > ->n_barrier_done, modifications are done holding ->barrier_mutex, so again
> > the read need not be volatile.  In the sync_rcu_preempt_exp_count case,
> > modifications are done holding sync_rcu_preempt_exp_mutex, so once again,
> > the read need not be volatile.  So I could do something like:
> >
> >         ACCESS_ONCE(rdp->qlen) = rdp->qlen + 1;
> >
> > But that still makes gcc generate bad code
> >
> > The reason I was not all that worried about this is that these are not
> > in fastpaths, and the last two are especially not in fastpaths.
> >
> > Suggestions?
> 
> So I think it probably *works*, but even so splitting it up to use
> ACCESS_ONCE() on just the write is probably a better option, if only
> because it would then make it much easier to change if we do end up
> splitting reads and writes.
> 
> Because from a gcc code generation standpoint, using "volatile" will
> always be horrible, because gcc will never be able to turn it into a
> read-modify-write cycle. Arguable gcc _should_ be able to do that (it
> is certainly allowable within the virtual machine definition), but I
> understand why it doesn't ("volatile? Let's not optimize anything at
> all, because it's special").
> 
> So "ACCESS_ONCE() + R-M-W" operation is actually pretty much
> guaranteed to be "ACCESS_TWICE()", which may well be ok (performance
> may not matter, and even when it does most architectures don't
> actually have r-m-w instructions and when they do they aren't always
> even faster), but I think it's just horribly horribly bad from a
> conceptual and readability standpoint because it's so misleading.
> 
> So I'd actually rather see two explicit ACCESS_ONCE() calls - once to
> read, once to write. Because that at least describes what is
> happening, unlike the current situation.
> 
> Put another way: I can understand why you do it, and I can even agree
> that it is "correct" from a functionality standpoint. But even despite
> that all, I really don't like the construct very much..

OK, I have queued the following commit for 3.17.  Is this what you had
in mind?

							Thanx, Paul

------------------------------------------------------------------------

rcu: Eliminate read-modify-write ACCESS_ONCE() calls

RCU contains code of the following forms:

	ACCESS_ONCE(x)++;
	ACCESS_ONCE(x) += y;
	ACCESS_ONCE(x) -= y;

Now these constructs do operate correctly, but they really result in a
pair of volatile accesses, one to do the load and another to do the store.
This can be confusing, as the casual reader might well assume that (for
example) gcc might generate a memory-to-memory add instruction for each
of these three cases.  In fact, gcc will do no such thing.  Also, there
is a good chance that the kernel will move to separate load and store
variants of ACCESS_ONCE(), and constructs like the above could easily
confuse both people and scripts attempting to make that sort of change.
Finally, most of RCU's read-modify-write uses of ACCESS_ONCE() really
only need the store to be volatile, so that the read-modify-write form
might be misleading.

This commit therefore changes the above forms in RCU so that each instance
of ACCESS_ONCE() either does a load or a store, but not both.  In a few
cases, ACCESS_ONCE() was not critical, for example, for maintaining 
statisitics.  In these cases, ACCESS_ONCE() has been dispensed with
entirely

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

diff --git a/kernel/rcu/srcu.c b/kernel/rcu/srcu.c
index c639556f3fa0..c0120279dead 100644
--- a/kernel/rcu/srcu.c
+++ b/kernel/rcu/srcu.c
@@ -295,12 +295,15 @@ EXPORT_SYMBOL_GPL(cleanup_srcu_struct);
 int __srcu_read_lock(struct srcu_struct *sp)
 {
 	int idx;
+	unsigned long *lp;
 
 	idx = ACCESS_ONCE(sp->completed) & 0x1;
 	preempt_disable();
-	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
+	lp = this_cpu_ptr(&sp->per_cpu_ref->c[idx]);
+	ACCESS_ONCE(*lp) = *lp + 1;
 	smp_mb(); /* B */  /* Avoid leaking the critical section. */
-	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
+	lp = this_cpu_ptr(&sp->per_cpu_ref->seq[idx]);
+	ACCESS_ONCE(*lp) = *lp + 1;
 	preempt_enable();
 	return idx;
 }
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index d1c8e4a85b92..f0ed867070cd 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2275,7 +2275,7 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp)
 	}
 	smp_mb(); /* List handling before counting for rcu_barrier(). */
 	rdp->qlen_lazy -= count_lazy;
-	ACCESS_ONCE(rdp->qlen) -= count;
+	ACCESS_ONCE(rdp->qlen) = rdp->qlen - count;
 	rdp->n_cbs_invoked += count;
 
 	/* Reinstate batch limit if we have worked down the excess. */
@@ -2420,7 +2420,7 @@ static void force_quiescent_state(struct rcu_state *rsp)
 		if (rnp_old != NULL)
 			raw_spin_unlock(&rnp_old->fqslock);
 		if (ret) {
-			ACCESS_ONCE(rsp->n_force_qs_lh)++;
+			rsp->n_force_qs_lh++;
 			return;
 		}
 		rnp_old = rnp;
@@ -2432,7 +2432,7 @@ static void force_quiescent_state(struct rcu_state *rsp)
 	smp_mb__after_unlock_lock();
 	raw_spin_unlock(&rnp_old->fqslock);
 	if (ACCESS_ONCE(rsp->gp_flags) & RCU_GP_FLAG_FQS) {
-		ACCESS_ONCE(rsp->n_force_qs_lh)++;
+		rsp->n_force_qs_lh++;
 		raw_spin_unlock_irqrestore(&rnp_old->lock, flags);
 		return;  /* Someone beat us to it. */
 	}
@@ -2621,7 +2621,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
 		local_irq_restore(flags);
 		return;
 	}
-	ACCESS_ONCE(rdp->qlen)++;
+	ACCESS_ONCE(rdp->qlen) = rdp->qlen + 1;
 	if (lazy)
 		rdp->qlen_lazy++;
 	else
@@ -3185,7 +3185,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
 	 * ACCESS_ONCE() to prevent the compiler from speculating
 	 * the increment to precede the early-exit check.
 	 */
-	ACCESS_ONCE(rsp->n_barrier_done)++;
+	ACCESS_ONCE(rsp->n_barrier_done) = rsp->n_barrier_done + 1;
 	WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 1);
 	_rcu_barrier_trace(rsp, "Inc1", -1, rsp->n_barrier_done);
 	smp_mb(); /* Order ->n_barrier_done increment with below mechanism. */
@@ -3235,7 +3235,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
 
 	/* Increment ->n_barrier_done to prevent duplicate work. */
 	smp_mb(); /* Keep increment after above mechanism. */
-	ACCESS_ONCE(rsp->n_barrier_done)++;
+	ACCESS_ONCE(rsp->n_barrier_done) = rsp->n_barrier_done + 1;
 	WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 0);
 	_rcu_barrier_trace(rsp, "Inc2", -1, rsp->n_barrier_done);
 	smp_mb(); /* Keep increment before caller's subsequent code. */
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index aee1e924b048..7ce734040a5e 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -2274,8 +2274,8 @@ static int rcu_nocb_kthread(void *arg)
 		tail = xchg(&rdp->nocb_tail, &rdp->nocb_head);
 		c = atomic_long_xchg(&rdp->nocb_q_count, 0);
 		cl = atomic_long_xchg(&rdp->nocb_q_count_lazy, 0);
-		ACCESS_ONCE(rdp->nocb_p_count) += c;
-		ACCESS_ONCE(rdp->nocb_p_count_lazy) += cl;
+		rdp->nocb_p_count += c;
+		rdp->nocb_p_count_lazy += cl;
 		rcu_nocb_wait_gp(rdp);
 
 		/* Each pass through the following loop invokes a callback. */

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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
 cancelable mcs spinlocks
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	Peter Zijlstra <peterz@infradead.org>,
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To: paulmck@linux.vnet.ibm.com
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On Mon, 2014-06-02 at 15:08 -0700, Paul E. McKenney wrote:

> diff --git a/kernel/rcu/srcu.c b/kernel/rcu/srcu.c
> index c639556f3fa0..c0120279dead 100644
> --- a/kernel/rcu/srcu.c
> +++ b/kernel/rcu/srcu.c
> @@ -295,12 +295,15 @@ EXPORT_SYMBOL_GPL(cleanup_srcu_struct);
>  int __srcu_read_lock(struct srcu_struct *sp)
>  {
>  	int idx;
> +	unsigned long *lp;
>  
>  	idx = ACCESS_ONCE(sp->completed) & 0x1;
>  	preempt_disable();
> -	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
> +	lp = this_cpu_ptr(&sp->per_cpu_ref->c[idx]);
> +	ACCESS_ONCE(*lp) = *lp + 1;
>  	smp_mb(); /* B */  /* Avoid leaking the critical section. */
> -	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
> +	lp = this_cpu_ptr(&sp->per_cpu_ref->seq[idx]);
> +	ACCESS_ONCE(*lp) = *lp + 1;
>  	preempt_enable();
>  	return idx;
>  

This probably could use the following 

diff --git a/kernel/rcu/srcu.c b/kernel/rcu/srcu.c
index c639556f3fa0..3a97eb6f9076 100644
--- a/kernel/rcu/srcu.c
+++ b/kernel/rcu/srcu.c
@@ -298,9 +298,9 @@ int __srcu_read_lock(struct srcu_struct *sp)
 
 	idx = ACCESS_ONCE(sp->completed) & 0x1;
 	preempt_disable();
-	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
+	this_cpu_inc(sp->per_cpu_ref->c[idx]);
 	smp_mb(); /* B */  /* Avoid leaking the critical section. */
-	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
+	this_cpu_inc(sp->per_cpu_ref->seq[idx]);
 	preempt_enable();
 	return idx;
 }


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From: Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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To: Paul McKenney <paulmck@linux.vnet.ibm.com>
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On Mon, Jun 2, 2014 at 3:08 PM, Paul E. McKenney
<paulmck@linux.vnet.ibm.com> wrote:
>
> rcu: Eliminate read-modify-write ACCESS_ONCE() calls
>
>         preempt_disable();
> -       ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
> +       lp = this_cpu_ptr(&sp->per_cpu_ref->c[idx]);
> +       ACCESS_ONCE(*lp) = *lp + 1;
>         smp_mb(); /* B */  /* Avoid leaking the critical section. */
> -       ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
> +       lp = this_cpu_ptr(&sp->per_cpu_ref->seq[idx]);
> +       ACCESS_ONCE(*lp) = *lp + 1;
>         preempt_enable();
>         return idx;

What Eric said. This should just use "this_cpu_inc()" instead.
Particularly with the smp_mb() and the preempt_enable(), there's no
way that could/should leak, and the ACCESS_ONCE() seems pointless and
ugly.

And the good news is, gcc _will_ generate good code for that.

              Linus
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From - Thu Nov 08 21:10:25 2018
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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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	"Chandramouleeswaran, Aswin" <aswin@hp.com>,
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	Jason Low <jason.low2@hp.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
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On Mon, Jun 02, 2014 at 03:44:48PM -0700, Eric Dumazet wrote:
> On Mon, 2014-06-02 at 15:08 -0700, Paul E. McKenney wrote:
> 
> > diff --git a/kernel/rcu/srcu.c b/kernel/rcu/srcu.c
> > index c639556f3fa0..c0120279dead 100644
> > --- a/kernel/rcu/srcu.c
> > +++ b/kernel/rcu/srcu.c
> > @@ -295,12 +295,15 @@ EXPORT_SYMBOL_GPL(cleanup_srcu_struct);
> >  int __srcu_read_lock(struct srcu_struct *sp)
> >  {
> >  	int idx;
> > +	unsigned long *lp;
> >  
> >  	idx = ACCESS_ONCE(sp->completed) & 0x1;
> >  	preempt_disable();
> > -	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
> > +	lp = this_cpu_ptr(&sp->per_cpu_ref->c[idx]);
> > +	ACCESS_ONCE(*lp) = *lp + 1;
> >  	smp_mb(); /* B */  /* Avoid leaking the critical section. */
> > -	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
> > +	lp = this_cpu_ptr(&sp->per_cpu_ref->seq[idx]);
> > +	ACCESS_ONCE(*lp) = *lp + 1;
> >  	preempt_enable();
> >  	return idx;
> >  
> 
> This probably could use the following 
> 
> diff --git a/kernel/rcu/srcu.c b/kernel/rcu/srcu.c
> index c639556f3fa0..3a97eb6f9076 100644
> --- a/kernel/rcu/srcu.c
> +++ b/kernel/rcu/srcu.c
> @@ -298,9 +298,9 @@ int __srcu_read_lock(struct srcu_struct *sp)
> 
>  	idx = ACCESS_ONCE(sp->completed) & 0x1;
>  	preempt_disable();
> -	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
> +	this_cpu_inc(sp->per_cpu_ref->c[idx]);
>  	smp_mb(); /* B */  /* Avoid leaking the critical section. */
> -	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
> +	this_cpu_inc(sp->per_cpu_ref->seq[idx]);
>  	preempt_enable();
>  	return idx;
>  }

Good point!

But given that I already have preemption disabled and given that
__srcu_read_lock() is not to be used by irq handlers, I should be able to
use __this_cpu_inc(), correct?  Just to avoid unnecessary irq disabling
on non-x86 platforms...

Seems to pass a quick build, so trying a bit heavier testing.

							Thanx, Paul

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On Mon, 2014-06-02 at 16:17 -0700, Paul E. McKenney wrote:

> But given that I already have preemption disabled and given that
> __srcu_read_lock() is not to be used by irq handlers, I should be able to
> use __this_cpu_inc(), correct?  Just to avoid unnecessary irq disabling
> on non-x86 platforms...

Absolutely, __this_cpu_inc() is OK here.


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On Mon, Jun 02, 2014 at 04:53:44PM -0700, Eric Dumazet wrote:
> On Mon, 2014-06-02 at 16:17 -0700, Paul E. McKenney wrote:
> 
> > But given that I already have preemption disabled and given that
> > __srcu_read_lock() is not to be used by irq handlers, I should be able to
> > use __this_cpu_inc(), correct?  Just to avoid unnecessary irq disabling
> > on non-x86 platforms...
> 
> Absolutely, __this_cpu_inc() is OK here.

Cool, giving it a test...

							Thanx, Paul

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To: Mikulas Patocka <mpatocka@redhat.com>
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On Mon, Jun 02, 2014 at 04:46:32PM -0400, Mikulas Patocka wrote:
> It's not only parisc - tile32, arc, metag (maybe hexagon) are broken too,=
=20
> because they don't have cmpxchg in hardware.

metag actually does, and the lock1 thing is a fallback/test thing:

config METAG_ATOMICITY_LOCK1
	depends on SMP
	bool "lock1"
	help
	  This option uses the LOCK1 instruction for atomicity. This is mainly
	  provided as a debugging aid if the lnkget/lnkset atomicity primitive
	  isn't working properly.

Then again, metag has qualiteee bits like:

config METAG_SMP_WRITE_REORDERING
	bool
	help
	  This attempts to prevent cache-memory incoherence due to external
	  reordering of writes from different hardware threads when SMP is
	  enabled. It adds fences (system event 0) to smp_mb and smp_rmb in an
	  attempt to catch some of the cases, and also before writes to shared
	  memory in LOCK1 protected atomics and spinlocks.
	  This will not completely prevent cache incoherency on affected cores.

Which makes me back away slowly before starting to run.

And there is sane arc hardware:

config ARC_HAS_LLSC
	bool "Insn: LLOCK/SCOND (efficient atomic ops)"
	default y
	depends on ARC_CPU_770 && !ARC_CANT_LLSC

tile32 is indeed equally wrecked, but at least they have a tile64 system
that is useful (albeit somewhat strange).

Same for sparc32, there's sparc64 which is sane.

parisc otoh is a dead arch that never got sane.

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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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To: Mikulas Patocka <mpatocka@redhat.com>
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On Mon, Jun 02, 2014 at 05:12:16PM -0400, Mikulas Patocka wrote:
> The patch adds atomic_pointer_t for all architectures - it is in the=20
> common code and it is backed by atomic_long_t (that already exists for al=
l=20
> architectures). There is no new arch-specific code at all.
>=20
> When we have atomic_pointer_t, we can find the instances of xchg() and=20
> cmpxchg() and convert them to atomic_pointer_t (or to other atomic*_t=20
> types).
>=20
> When we convert them all, we can drop xchg() and cmpxchg() at all (at=20
> least from architecture-neutral code).
>=20
> The problem with xchg() and cmpxchg() is that they are very easy to=20
> misuse. Peter Zijlstra didn't know that they are not atomic w.r.t. normal=
=20
> stores, a lot of other people don't know it too - and if we allow these=
=20
> functions to be used, this race condition will reappear in the future=20
> again and again.
>=20
> That's why I'm proposing atomic_pointer_t - it guarantees that this race=
=20
> condition can't be made.

But its horrible, and doesn't have any benefit afaict.

So if we really want to keep supporting these platforms; I would propose
something like:

#ifdef __CHECKER__
#define __atomic	__attribute__((address_space(5)))
#else
#define __atomic
#endif

#define store(p, v)	(*(p) =3D (typeof(*(p)) __force __atomic)(v))
#define load(p)		((typeof(*p) __force)ACCESS_ONCE(*(p)))

Along with changes to xchg() and cmpxchg() that require them to take
pointers to __atomic.

That way we keep the flexibility of xchg() and cmpxchg() for being
(mostly) type and size invariant, and get sparse to find wrong usage.

Then parisc, sparc32, tile32, metag-lock1 and arc-!llsc can go implement
store() however they like.



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Cc: Waiman Long <waiman.long@hp.com>,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Mon, Jun 02, 2014 at 01:22:10PM -0700, Linus Torvalds wrote:
> On Mon, Jun 2, 2014 at 1:05 PM, Peter Zijlstra <peterz@infradead.org> wro=
te:
> >
> > So the question is, do you prefer subtly broken code or hard compile
> > fails? Me, I go for the compile fail.
>=20
> The thing is, parisc has a perfectly fine "cmpxchg" implementation in
> practice, and ACCESS_ONCE() and friends work fine too for reading.
>=20
> What the "use a spinlock" approach cannot generally do is:
>=20
>  - ACCESS_ONCE() to _write_ things doesn't work well. You really
> should use "atomic_set()".
>=20
>  - you may not necessarily be able to mix partial updates (ie
> differently sized updates to the same thing) depending on just how the
> spinlock hashing works
>=20
> but both of those are really rare issues and don't affect normal code.

Agreed on the second, although that would be fairly easy to fix by
masking out the lower few bits in the pointer address before hashing.

The first, you're probably, right, but seeing how its a completely
silent fail atm I'm not at all comfortable with it.

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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Mon, Jun 02, 2014 at 12:56:40PM -0700, James Bottomley wrote:
> Architecturally, there is a way we could emulate the atomic exchange
> instructions.  We could have a special section of memory that always
> triggers a page trap.  In the Q state dtlb trap handlers we could
> recognise the "atomic" section of memory and wrap the attempted
> modification in a semaphore.  This would add a bit of overhead, but not
> a huge amount if we do it in the trap handlers like the TMPALIAS
> flushes.  This involves a lot of work for us because we have to decode
> the instructions in software, recognise the operations and manually
> apply the hashed semaphores around them.  If we did it like this, all
> we'd need by way of mainline support is that variables treated as
> atomically exchangeable should be in a separate section (because it's a
> page fault handler effectively, we need them all separated from "normal"
> code).  This would probably require some type of variable marker and if
> we ever saw a xchg or cmpxchg on a variable without the marker, we could
> break the build.

Cute, but I don't think that's entirely feasible given how these things
can be embedded in other structures (some dynamically allocated etc..).



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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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To: Peter Zijlstra <peterz@infradead.org>
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On Tue, 3 Jun 2014, Peter Zijlstra wrote:

> On Mon, Jun 02, 2014 at 05:12:16PM -0400, Mikulas Patocka wrote:
> > The patch adds atomic_pointer_t for all architectures - it is in the 
> > common code and it is backed by atomic_long_t (that already exists for all 
> > architectures). There is no new arch-specific code at all.
> > 
> > When we have atomic_pointer_t, we can find the instances of xchg() and 
> > cmpxchg() and convert them to atomic_pointer_t (or to other atomic*_t 
> > types).
> > 
> > When we convert them all, we can drop xchg() and cmpxchg() at all (at 
> > least from architecture-neutral code).
> > 
> > The problem with xchg() and cmpxchg() is that they are very easy to 
> > misuse. Peter Zijlstra didn't know that they are not atomic w.r.t. normal 
> > stores, a lot of other people don't know it too - and if we allow these 
> > functions to be used, this race condition will reappear in the future 
> > again and again.
> > 
> > That's why I'm proposing atomic_pointer_t - it guarantees that this race 
> > condition can't be made.
> 
> But its horrible, and doesn't have any benefit afaict.
>
> So if we really want to keep supporting these platforms; I would propose
> something like:
> 
> #ifdef __CHECKER__
> #define __atomic	__attribute__((address_space(5)))
> #else
> #define __atomic
> #endif
> 
> #define store(p, v)	(*(p) = (typeof(*(p)) __force __atomic)(v))
> #define load(p)		((typeof(*p) __force)ACCESS_ONCE(*(p)))
> 
> Along with changes to xchg() and cmpxchg() that require them to take
> pointers to __atomic.
> 
> That way we keep the flexibility of xchg() and cmpxchg() for being
> (mostly) type and size invariant, and get sparse to find wrong usage.
> 
> Then parisc, sparc32, tile32, metag-lock1 and arc-!llsc can go implement
> store() however they like.

Your proposal is very good because it warns about incorrect usage 
automatically.



Your usage is very similar to what my patch at the top of this thread 
does:

Instead of "__atomic struct s *p;" declaration, my patch uses
"atomic_pointer(struct s*) p;" as the declaration
Instead of store(&p, v), my patch uses atomic_pointer_set(&p, v);
Instead of load(&p), my patch uses atomic_pointer_get(&p);
Instead of xchg(&p, v), my patch uses atomic_pointer_xchg(&p, v);
Instead of cmpxchg(&p, v1, v2), my patch uses atomic_pointer_cmpxchg(&p1, v1, v2);

> But its horrible, and doesn't have any benefit afaict.

See the five cases above - why do you say that the operation on the left 
is good and the operation on the right is horrible? To me, it looks like 
they are both similar, they are just named differently. Both check the 
type of the pointer and warns if the user passes incompatible pointer. If 
I rename the operations in my patch to store(), load(), xchg(), cmpxchg(), 
would you like it?


My patch has advantage (over your #define __atomic 
__attribute__((address_space(5))) ) that it checks the mismatches at 
compile time. Your proposal only check them with sparse. But either way - 
it is very good that the mismatches are being checked automatically.




We need some method to catch these races automatically. There are places 
where people xchg() or cmpxchg() with direct modifications, see for 
example this:


$ grep -w mnt_expiry_mark */*.c
fs/namespace.c:         if (unlikely(m->mnt_expiry_mark))
fs/namespace.c:                 m->mnt_expiry_mark = 0;
fs/namespace.c:         if (!xchg(&mnt->mnt_expiry_mark, 1))
fs/namespace.c: /* we mustn't call path_put() as that would clear mnt_expiry_mark */
fs/namespace.c:         if (!xchg(&mnt->mnt_expiry_mark, 1) ||

$ grep "sub_info->complete" */*.c
kernel/kmod.c:  struct completion *comp = xchg(&sub_info->complete, NULL);
kernel/kmod.c:  sub_info->complete = &done;
kernel/kmod.c:          if (xchg(&sub_info->complete, NULL))

$ grep -w "fdt->fd" */*.c
fs/file.c:      free_fdmem(fdt->fd);
fs/file.c:      fdt->fd = data;
fs/file.c:      free_fdmem(fdt->fd);
fs/file.c:                              struct file * file = xchg(&fdt->fd[i], NULL);
fs/file.c:      if (rcu_access_pointer(fdt->fd[fd]) != NULL) {
fs/file.c:              rcu_assign_pointer(fdt->fd[fd], NULL);
fs/file.c:      BUG_ON(fdt->fd[fd] != NULL);
fs/file.c:      rcu_assign_pointer(fdt->fd[fd], file);
fs/file.c:      file = fdt->fd[fd];
fs/file.c:      rcu_assign_pointer(fdt->fd[fd], NULL);
fs/file.c:                      file = fdt->fd[fd];
fs/file.c:                      rcu_assign_pointer(fdt->fd[fd], NULL);
fs/file.c:      tofree = fdt->fd[fd];
fs/file.c:      rcu_assign_pointer(fdt->fd[fd], file);
fs/file.c:              file = rcu_dereference_check_fdtable(files, fdt->fd[n]);

$ grep -w exit_state */*.c
fs/exec.c:                      if (likely(leader->exit_state))
fs/exec.c:              BUG_ON(leader->exit_state != EXIT_ZOMBIE);
fs/exec.c:              leader->exit_state = EXIT_DEAD;
kernel/exit.c:  if (leader != p && thread_group_empty(leader) && leader->exit_state == EXIT_ZOMBIE) {
kernel/exit.c:                  leader->exit_state = EXIT_DEAD;
kernel/exit.c:              (p->exit_state && thread_group_empty(p)) ||
kernel/exit.c:  if (p->exit_state == EXIT_DEAD)
kernel/exit.c:      p->exit_state == EXIT_ZOMBIE && thread_group_empty(p)) {
kernel/exit.c:                  p->exit_state = EXIT_DEAD;
kernel/exit.c:  tsk->exit_state = autoreap ? EXIT_DEAD : EXIT_ZOMBIE;
kernel/exit.c:  if (cmpxchg(&p->exit_state, EXIT_ZOMBIE, state) != EXIT_ZOMBIE)
kernel/exit.c:          p->exit_state = state;
kernel/exit.c:  if (unlikely(p->exit_state == EXIT_DEAD))
kernel/exit.c:  if (unlikely(p->exit_state == EXIT_TRACE)) {
kernel/exit.c:  if (p->exit_state == EXIT_ZOMBIE) {
kernel/fork.c:  WARN_ON(!tsk->exit_state);
kernel/posix-cpu-timers.c:              if (unlikely(p->exit_state))
kernel/posix-cpu-timers.c:              } else if (unlikely(p->exit_state) && thread_group_empty(p)) {
kernel/ptrace.c:        if (unlikely(task->exit_state))
kernel/ptrace.c:        if (p->exit_state != EXIT_ZOMBIE)
kernel/ptrace.c:                p->exit_state = EXIT_DEAD;
kernel/ptrace.c:                if (child->exit_state)  /* already dead */
kernel/signal.c:                if (t->exit_state)
kernel/taskstats.c:             if (tsk->exit_state)
mm/oom_kill.c:  if (task->exit_state)


Mikulas
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3.11.10.11 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: James Hogan <james.hogan@imgtec.com>

commit d71f290b4e98a39f49f2595a13be3b4d5ce8e1f1 upstream.

Specify the maximum stack size for arches where the stack grows upward
(parisc and metag) in asm/processor.h rather than hard coding in
fs/exec.c so that metag can specify a smaller value of 256MB rather than
1GB.

This fixes a BUG on metag if the RLIMIT_STACK hard limit is increased
beyond a safe value by root. E.g. when starting a process after running
"ulimit -H -s unlimited" it will then attempt to use a stack size of the
maximum 1GB which is far too big for metag's limited user virtual
address space (stack_top is usually 0x3ffff000):

BUG: failure at fs/exec.c:589/shift_arg_pages()!

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Cc: linux-metag@vger.kernel.org
Cc: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 arch/metag/include/asm/processor.h  | 2 ++
 arch/parisc/include/asm/processor.h | 2 ++
 fs/exec.c                           | 6 +++---
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index f16477d1f571..3be8581af495 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -22,6 +22,8 @@
 /* Add an extra page of padding at the top of the stack for the guard page. */
 #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
 #define STACK_TOP_MAX	STACK_TOP
+/* Maximum virtual space for stack */
+#define STACK_SIZE_MAX	(1 << 28)	/* 256 MB */
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index cc2290a3cace..c6ee86542fec 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -53,6 +53,8 @@
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
+#define STACK_SIZE_MAX	(1 << 30)	/* 1 GB */
+
 #endif
 
 #ifndef __ASSEMBLY__
diff --git a/fs/exec.c b/fs/exec.c
index e72f6bbbde2e..87e9edb36fe0 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -655,10 +655,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	unsigned long rlim_stack;
 
 #ifdef CONFIG_STACK_GROWSUP
-	/* Limit stack size to 1GB */
+	/* Limit stack size */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;
 
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
-- 
1.9.1

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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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	Helge Deller <deller@gmx.de>,
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	Jason Low <jason.low2@hp.com>
To: Mikulas Patocka <mpatocka@redhat.com>
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On Tue, Jun 03, 2014 at 07:14:31AM -0400, Mikulas Patocka wrote:
> > So if we really want to keep supporting these platforms; I would propose
> > something like:
> >=20
> > #ifdef __CHECKER__
> > #define __atomic	__attribute__((address_space(5)))
> > #else
> > #define __atomic
> > #endif
> >=20
> > #define store(p, v)	(*(p) =3D (typeof(*(p)) __force __atomic)(v))
> > #define load(p)		((typeof(*p) __force)ACCESS_ONCE(*(p)))
> >=20
> > Along with changes to xchg() and cmpxchg() that require them to take
> > pointers to __atomic.
> >=20
> > That way we keep the flexibility of xchg() and cmpxchg() for being
> > (mostly) type and size invariant, and get sparse to find wrong usage.
> >=20
> > Then parisc, sparc32, tile32, metag-lock1 and arc-!llsc can go implement
> > store() however they like.
>=20
> Your proposal is very good because it warns about incorrect usage=20
> automatically.

Exactly the point.

> Your usage is very similar to what my patch at the top of this thread=20
> does:
>=20
> Instead of "__atomic struct s *p;" declaration, my patch uses
> "atomic_pointer(struct s*) p;" as the declaration
> Instead of store(&p, v), my patch uses atomic_pointer_set(&p, v);
> Instead of load(&p), my patch uses atomic_pointer_get(&p);
> Instead of xchg(&p, v), my patch uses atomic_pointer_xchg(&p, v);
> Instead of cmpxchg(&p, v1, v2), my patch uses atomic_pointer_cmpxchg(&p1,=
 v1, v2);
>=20
> > But its horrible, and doesn't have any benefit afaict.
>=20
> See the five cases above - why do you say that the operation on the left=
=20
> is good and the operation on the right is horrible? To me, it looks like=
=20
> they are both similar, they are just named differently. Both check the=20
> type of the pointer and warns if the user passes incompatible pointer. If=
=20
> I rename the operations in my patch to store(), load(), xchg(), cmpxchg()=
,=20
> would you like it?

Nope.. because the above store,load,xchg,cmpxchg are type invariant and
work for anything of size (1),2,4,(8).

So I dislike your proposal on a number of points:

 1) its got pointer in, and while the immediate problem is indeed with
 pointers, there is no reason it always should be, so we'll keep on
 introducing new APIs;

 2) its got a fixed length, nl. sizeof(void *), if we were to find
 another case which had the same problem which used 'int' we'd have to
 again create new APIs;

 3) you only fixed the one site;

 4) I'm the lazy kind and atomic_foo_* is just too much typing, let
 alone remembering all the various new atomic_foo_ APIs resulting from
 all this.

This is the place where I really miss C++ templates; and yes before
people shoot me in the head for that, I do know about all the various
pitfalls and down sides of those too.

> My patch has advantage (over your #define __atomic=20
> __attribute__((address_space(5))) ) that it checks the mismatches at=20
> compile time. Your proposal only check them with sparse. But either way -=
=20
> it is very good that the mismatches are being checked automatically.

So my proposal goes a lot further in that by making xchg() and cmpxchg()
require pointer to __atomic, all sites get coverage, not only the one
case where you found was a problem.

Yes, this requires a lot more effort, for we'll have to pretty much
audit and annotate the entire tree, but such things can be done, see for
example the introduction of __rcu.

Also, these days we get automagic emails if we introduce new sparse
fails, so it being sparse and not gcc isn't really any threshold at all.

> We need some method to catch these races automatically. There are places=
=20
> where people xchg() or cmpxchg() with direct modifications, see for=20
> example this:

Yep, so all those places will immediately stand out, the first fail will
be that those variables aren't marked __atomic, once you do that, the
direct assignment will complain about crossing the address_space marker.

Voila, sorted.

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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
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	"Chandramouleeswaran, Aswin" <aswin@hp.com>,
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	Jason Low <jason.low2@hp.com>
To: Peter Zijlstra <peterz@infradead.org>
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On Tue, 3 Jun 2014, Peter Zijlstra wrote:

> On Tue, Jun 03, 2014 at 07:14:31AM -0400, Mikulas Patocka wrote:
> > > So if we really want to keep supporting these platforms; I would propose
> > > something like:
> > > 
> > > #ifdef __CHECKER__
> > > #define __atomic	__attribute__((address_space(5)))
> > > #else
> > > #define __atomic
> > > #endif
> > > 
> > > #define store(p, v)	(*(p) = (typeof(*(p)) __force __atomic)(v))
> > > #define load(p)		((typeof(*p) __force)ACCESS_ONCE(*(p)))
> > > 
> > > Along with changes to xchg() and cmpxchg() that require them to take
> > > pointers to __atomic.
> > > 
> > > That way we keep the flexibility of xchg() and cmpxchg() for being
> > > (mostly) type and size invariant, and get sparse to find wrong usage.
> > > 
> > > Then parisc, sparc32, tile32, metag-lock1 and arc-!llsc can go implement
> > > store() however they like.
> > 
> > Your proposal is very good because it warns about incorrect usage 
> > automatically.
> 
> Exactly the point.
> 
> > Your usage is very similar to what my patch at the top of this thread 
> > does:
> > 
> > Instead of "__atomic struct s *p;" declaration, my patch uses
> > "atomic_pointer(struct s*) p;" as the declaration
> > Instead of store(&p, v), my patch uses atomic_pointer_set(&p, v);
> > Instead of load(&p), my patch uses atomic_pointer_get(&p);
> > Instead of xchg(&p, v), my patch uses atomic_pointer_xchg(&p, v);
> > Instead of cmpxchg(&p, v1, v2), my patch uses atomic_pointer_cmpxchg(&p1, v1, v2);
> > 
> > > But its horrible, and doesn't have any benefit afaict.
> > 
> > See the five cases above - why do you say that the operation on the left 
> > is good and the operation on the right is horrible? To me, it looks like 
> > they are both similar, they are just named differently. Both check the 
> > type of the pointer and warns if the user passes incompatible pointer. If 
> > I rename the operations in my patch to store(), load(), xchg(), cmpxchg(), 
> > would you like it?
> 
> Nope.. because the above store,load,xchg,cmpxchg are type invariant and
> work for anything of size (1),2,4,(8).
> 
> So I dislike your proposal on a number of points:
> 
>  1) its got pointer in, and while the immediate problem is indeed with
>  pointers, there is no reason it always should be, so we'll keep on
>  introducing new APIs;
> 
>  2) its got a fixed length, nl. sizeof(void *), if we were to find
>  another case which had the same problem which used 'int' we'd have to
>  again create new APIs;
> 
>  3) you only fixed the one site;
> 
>  4) I'm the lazy kind and atomic_foo_* is just too much typing, let
>  alone remembering all the various new atomic_foo_ APIs resulting from
>  all this.
> 
> This is the place where I really miss C++ templates; and yes before
> people shoot me in the head for that, I do know about all the various
> pitfalls and down sides of those too.
> 
> > My patch has advantage (over your #define __atomic 
> > __attribute__((address_space(5))) ) that it checks the mismatches at 
> > compile time. Your proposal only check them with sparse. But either way - 
> > it is very good that the mismatches are being checked automatically.
> 
> So my proposal goes a lot further in that by making xchg() and cmpxchg()
> require pointer to __atomic, all sites get coverage, not only the one
> case where you found was a problem.
> 
> Yes, this requires a lot more effort, for we'll have to pretty much
> audit and annotate the entire tree, but such things can be done, see for
> example the introduction of __rcu.
> 
> Also, these days we get automagic emails if we introduce new sparse
> fails, so it being sparse and not gcc isn't really any threshold at all.
> 
> > We need some method to catch these races automatically. There are places 
> > where people xchg() or cmpxchg() with direct modifications, see for 
> > example this:
> 
> Yep, so all those places will immediately stand out, the first fail will
> be that those variables aren't marked __atomic, once you do that, the
> direct assignment will complain about crossing the address_space marker.
> 
> Voila, sorted.

I originally wanted to remove PA-RISC xchg and cmpxchg, force compile 
failure on places where it is used and convert them to atomic operations. 
But there's a lot of such places, the patch would be big and it would 
probably trigger some compile failures in configurations that I can't 
test.

So, I agree that your approch with sparse tagging is better, it only warns 
about unsafe use and it won't be breaking compilation for so many people.

Mikulas
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Cc: Mikulas Patocka <mpatocka@redhat.com>,
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	"Chandramouleeswaran, Aswin" <aswin@hp.com>,
	"Norton, Scott J" <scott.norton@hp.com>,
	Jason Low <jason.low2@hp.com>
To: Peter Zijlstra <peterz@infradead.org>
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On Tue, Jun 03, 2014 at 09:36:13AM +0200, Peter Zijlstra wrote:
> On Mon, Jun 02, 2014 at 05:12:16PM -0400, Mikulas Patocka wrote:
> > The patch adds atomic_pointer_t for all architectures - it is in the 
> > common code and it is backed by atomic_long_t (that already exists for all 
> > architectures). There is no new arch-specific code at all.
> > 
> > When we have atomic_pointer_t, we can find the instances of xchg() and 
> > cmpxchg() and convert them to atomic_pointer_t (or to other atomic*_t 
> > types).
> > 
> > When we convert them all, we can drop xchg() and cmpxchg() at all (at 
> > least from architecture-neutral code).
> > 
> > The problem with xchg() and cmpxchg() is that they are very easy to 
> > misuse. Peter Zijlstra didn't know that they are not atomic w.r.t. normal 
> > stores, a lot of other people don't know it too - and if we allow these 
> > functions to be used, this race condition will reappear in the future 
> > again and again.
> > 
> > That's why I'm proposing atomic_pointer_t - it guarantees that this race 
> > condition can't be made.
> 
> But its horrible, and doesn't have any benefit afaict.
> 
> So if we really want to keep supporting these platforms; I would propose
> something like:
> 
> #ifdef __CHECKER__
> #define __atomic	__attribute__((address_space(5)))
> #else
> #define __atomic
> #endif
> 
> #define store(p, v)	(*(p) = (typeof(*(p)) __force __atomic)(v))
> #define load(p)		((typeof(*p) __force)ACCESS_ONCE(*(p)))
> 
> Along with changes to xchg() and cmpxchg() that require them to take
> pointers to __atomic.
> 
> That way we keep the flexibility of xchg() and cmpxchg() for being
> (mostly) type and size invariant, and get sparse to find wrong usage.
> 
> Then parisc, sparc32, tile32, metag-lock1 and arc-!llsc can go implement
> store() however they like.

Should be fun interacting with atomic operations on __rcu variables
(address space 4).  Of course, that is already fun...

							Thanx, Paul

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On Tue, Jun 03, 2014 at 07:07:27AM -0700, Paul E. McKenney wrote:
> On Tue, Jun 03, 2014 at 09:36:13AM +0200, Peter Zijlstra wrote:
> >=20
> > #ifdef __CHECKER__
> > #define __atomic	__attribute__((address_space(5)))
> > #else
> > #define __atomic
> > #endif
> >=20
> > #define store(p, v)	(*(p) =3D (typeof(*(p)) __force __atomic)(v))
> > #define load(p)		((typeof(*p) __force)ACCESS_ONCE(*(p)))
> >=20
> > Along with changes to xchg() and cmpxchg() that require them to take
> > pointers to __atomic.
> >=20
> > That way we keep the flexibility of xchg() and cmpxchg() for being
> > (mostly) type and size invariant, and get sparse to find wrong usage.
> >=20
> > Then parisc, sparc32, tile32, metag-lock1 and arc-!llsc can go implement
> > store() however they like.
>=20
> Should be fun interacting with atomic operations on __rcu variables
> (address space 4).  Of course, that is already fun...
>=20

Hmm, good point, I suppose sparse doesn't like two different
address_space annotations on the same variable ?

/me adds Christpoher Li to the CC list.

ISTR Mikulas actually listing one such, me digs in recent email..

> $ grep -w "fdt->fd" */*.c
> fs/file.c:      free_fdmem(fdt->fd);
> fs/file.c:      fdt->fd =3D data;
> fs/file.c:      free_fdmem(fdt->fd);
> fs/file.c:                              struct file * file =3D xchg(&fdt-=
>fd[i], NULL);

So yes, that's going to be fun, mostly because rcu_assign_pointer()
doesn't actually do the right magic for this to be safe on their
platform(s).



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Cc: Mikulas Patocka <mpatocka@redhat.com>,
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
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To: Peter Zijlstra <peterz@infradead.org>
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On Tue, Jun 03, 2014 at 05:09:08PM +0200, Peter Zijlstra wrote:
> On Tue, Jun 03, 2014 at 07:07:27AM -0700, Paul E. McKenney wrote:
> > On Tue, Jun 03, 2014 at 09:36:13AM +0200, Peter Zijlstra wrote:
> > > 
> > > #ifdef __CHECKER__
> > > #define __atomic	__attribute__((address_space(5)))
> > > #else
> > > #define __atomic
> > > #endif
> > > 
> > > #define store(p, v)	(*(p) = (typeof(*(p)) __force __atomic)(v))
> > > #define load(p)		((typeof(*p) __force)ACCESS_ONCE(*(p)))
> > > 
> > > Along with changes to xchg() and cmpxchg() that require them to take
> > > pointers to __atomic.
> > > 
> > > That way we keep the flexibility of xchg() and cmpxchg() for being
> > > (mostly) type and size invariant, and get sparse to find wrong usage.
> > > 
> > > Then parisc, sparc32, tile32, metag-lock1 and arc-!llsc can go implement
> > > store() however they like.
> > 
> > Should be fun interacting with atomic operations on __rcu variables
> > (address space 4).  Of course, that is already fun...
> > 
> 
> Hmm, good point, I suppose sparse doesn't like two different
> address_space annotations on the same variable ?
> 
> /me adds Christpoher Li to the CC list.
> 
> ISTR Mikulas actually listing one such, me digs in recent email..
> 
> > $ grep -w "fdt->fd" */*.c
> > fs/file.c:      free_fdmem(fdt->fd);
> > fs/file.c:      fdt->fd = data;
> > fs/file.c:      free_fdmem(fdt->fd);
> > fs/file.c:                              struct file * file = xchg(&fdt->fd[i], NULL);
> 
> So yes, that's going to be fun, mostly because rcu_assign_pointer()
> doesn't actually do the right magic for this to be safe on their
> platform(s).

Maybe at some point sparse needs to keep a bit mask for the address
spaces, so that you caould say somthing like:

	struct foo __atomic __rcu *p;

							Thanx, Paul

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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
 cancelable mcs spinlocks
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Cc: Peter Zijlstra <peterz@infradead.org>,
	Waiman Long <waiman.long@hp.com>,
	Mikulas Patocka <mpatocka@redhat.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
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	"Chandramouleeswaran, Aswin" <aswin@hp.com>,
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	Jason Low <jason.low2@hp.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
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On Mon, Jun 02, 2014 at 03:55:57PM -0700, Linus Torvalds wrote:
> On Mon, Jun 2, 2014 at 3:08 PM, Paul E. McKenney
> <paulmck@linux.vnet.ibm.com> wrote:
> >
> > rcu: Eliminate read-modify-write ACCESS_ONCE() calls
> >
> >         preempt_disable();
> > -       ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
> > +       lp = this_cpu_ptr(&sp->per_cpu_ref->c[idx]);
> > +       ACCESS_ONCE(*lp) = *lp + 1;
> >         smp_mb(); /* B */  /* Avoid leaking the critical section. */
> > -       ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
> > +       lp = this_cpu_ptr(&sp->per_cpu_ref->seq[idx]);
> > +       ACCESS_ONCE(*lp) = *lp + 1;
> >         preempt_enable();
> >         return idx;
> 
> What Eric said. This should just use "this_cpu_inc()" instead.
> Particularly with the smp_mb() and the preempt_enable(), there's no
> way that could/should leak, and the ACCESS_ONCE() seems pointless and
> ugly.
> 
> And the good news is, gcc _will_ generate good code for that.

And here is the update, which passes light rcutorture testing.

							Thanx, Paul

------------------------------------------------------------------------

rcu: Eliminate read-modify-write ACCESS_ONCE() calls
    
RCU contains code of the following forms:
    
    	ACCESS_ONCE(x)++;
    	ACCESS_ONCE(x) += y;
    	ACCESS_ONCE(x) -= y;
    
Now these constructs do operate correctly, but they really result in a
pair of volatile accesses, one to do the load and another to do the store.
This can be confusing, as the casual reader might well assume that (for
example) gcc might generate a memory-to-memory add instruction for each
of these three cases.  In fact, gcc will do no such thing.  Also, there
is a good chance that the kernel will move to separate load and store
variants of ACCESS_ONCE(), and constructs like the above could easily
confuse both people and scripts attempting to make that sort of change.
Finally, most of RCU's read-modify-write uses of ACCESS_ONCE() really
only need the store to be volatile, so that the read-modify-write form
might be misleading.

This commit therefore changes the above forms in RCU so that each instance
of ACCESS_ONCE() either does a load or a store, but not both.  In a few
cases, ACCESS_ONCE() was not critical, for example, for maintaining
statisitics.  In these cases, ACCESS_ONCE() has been dispensed with
entirely.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

diff --git a/kernel/rcu/srcu.c b/kernel/rcu/srcu.c
index c639556f3fa0..e037f3eb2f7b 100644
--- a/kernel/rcu/srcu.c
+++ b/kernel/rcu/srcu.c
@@ -298,9 +298,9 @@ int __srcu_read_lock(struct srcu_struct *sp)
 
 	idx = ACCESS_ONCE(sp->completed) & 0x1;
 	preempt_disable();
-	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
+	__this_cpu_inc(sp->per_cpu_ref->c[idx]);
 	smp_mb(); /* B */  /* Avoid leaking the critical section. */
-	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
+	__this_cpu_inc(sp->per_cpu_ref->seq[idx]);
 	preempt_enable();
 	return idx;
 }
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index d1c8e4a85b92..f0ed867070cd 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2275,7 +2275,7 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp)
 	}
 	smp_mb(); /* List handling before counting for rcu_barrier(). */
 	rdp->qlen_lazy -= count_lazy;
-	ACCESS_ONCE(rdp->qlen) -= count;
+	ACCESS_ONCE(rdp->qlen) = rdp->qlen - count;
 	rdp->n_cbs_invoked += count;
 
 	/* Reinstate batch limit if we have worked down the excess. */
@@ -2420,7 +2420,7 @@ static void force_quiescent_state(struct rcu_state *rsp)
 		if (rnp_old != NULL)
 			raw_spin_unlock(&rnp_old->fqslock);
 		if (ret) {
-			ACCESS_ONCE(rsp->n_force_qs_lh)++;
+			rsp->n_force_qs_lh++;
 			return;
 		}
 		rnp_old = rnp;
@@ -2432,7 +2432,7 @@ static void force_quiescent_state(struct rcu_state *rsp)
 	smp_mb__after_unlock_lock();
 	raw_spin_unlock(&rnp_old->fqslock);
 	if (ACCESS_ONCE(rsp->gp_flags) & RCU_GP_FLAG_FQS) {
-		ACCESS_ONCE(rsp->n_force_qs_lh)++;
+		rsp->n_force_qs_lh++;
 		raw_spin_unlock_irqrestore(&rnp_old->lock, flags);
 		return;  /* Someone beat us to it. */
 	}
@@ -2621,7 +2621,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
 		local_irq_restore(flags);
 		return;
 	}
-	ACCESS_ONCE(rdp->qlen)++;
+	ACCESS_ONCE(rdp->qlen) = rdp->qlen + 1;
 	if (lazy)
 		rdp->qlen_lazy++;
 	else
@@ -3185,7 +3185,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
 	 * ACCESS_ONCE() to prevent the compiler from speculating
 	 * the increment to precede the early-exit check.
 	 */
-	ACCESS_ONCE(rsp->n_barrier_done)++;
+	ACCESS_ONCE(rsp->n_barrier_done) = rsp->n_barrier_done + 1;
 	WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 1);
 	_rcu_barrier_trace(rsp, "Inc1", -1, rsp->n_barrier_done);
 	smp_mb(); /* Order ->n_barrier_done increment with below mechanism. */
@@ -3235,7 +3235,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
 
 	/* Increment ->n_barrier_done to prevent duplicate work. */
 	smp_mb(); /* Keep increment after above mechanism. */
-	ACCESS_ONCE(rsp->n_barrier_done)++;
+	ACCESS_ONCE(rsp->n_barrier_done) = rsp->n_barrier_done + 1;
 	WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 0);
 	_rcu_barrier_trace(rsp, "Inc2", -1, rsp->n_barrier_done);
 	smp_mb(); /* Keep increment before caller's subsequent code. */
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index aee1e924b048..7ce734040a5e 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -2274,8 +2274,8 @@ static int rcu_nocb_kthread(void *arg)
 		tail = xchg(&rdp->nocb_tail, &rdp->nocb_head);
 		c = atomic_long_xchg(&rdp->nocb_q_count, 0);
 		cl = atomic_long_xchg(&rdp->nocb_q_count_lazy, 0);
-		ACCESS_ONCE(rdp->nocb_p_count) += c;
-		ACCESS_ONCE(rdp->nocb_p_count_lazy) += cl;
+		rdp->nocb_p_count += c;
+		rdp->nocb_p_count_lazy += cl;
 		rcu_nocb_wait_gp(rdp);
 
 		/* Each pass through the following loop invokes a callback. */


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From: Mikulas Patocka <mpatocka@redhat.com>
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	jejb@parisc-linux.org, deller@gmx.de, linux-parisc@vger.kernel.org,
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To: Peter Zijlstra <peterz@infradead.org>
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On Tue, 3 Jun 2014, Peter Zijlstra wrote:

> On Mon, Jun 02, 2014 at 12:56:40PM -0700, James Bottomley wrote:
> > Architecturally, there is a way we could emulate the atomic exchange
> > instructions.  We could have a special section of memory that always
> > triggers a page trap.  In the Q state dtlb trap handlers we could
> > recognise the "atomic" section of memory and wrap the attempted
> > modification in a semaphore.  This would add a bit of overhead, but not
> > a huge amount if we do it in the trap handlers like the TMPALIAS
> > flushes.  This involves a lot of work for us because we have to decode
> > the instructions in software, recognise the operations and manually
> > apply the hashed semaphores around them.  If we did it like this, all
> > we'd need by way of mainline support is that variables treated as
> > atomically exchangeable should be in a separate section (because it's a
> > page fault handler effectively, we need them all separated from "normal"
> > code).  This would probably require some type of variable marker and if
> > we ever saw a xchg or cmpxchg on a variable without the marker, we could
> > break the build.
> 
> Cute, but I don't think that's entirely feasible given how these things
> can be embedded in other structures (some dynamically allocated etc..).

We could deliberately misalign all the atomic variables - then, we would 
take the alignment trap (that is already written) and take the atomic 
spinlock in it.

I've got another idea - we could stop the other CPUs while xchg or cmpxchg 
is being executed. But there is a problem if the other CPU has interrupts 
disabled. Could we mask interrupts on PA-RISC in such a way that they are 
all disabled except one IPI that stops the CPU temporarily? Maybe do not 
mask interrupts with PSW I-bit and mask them with EIEM instead (leaving 
the one interrupt for cmpxchg IPI enabled)?

Mikulas
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From - Thu Nov 08 21:10:26 2018
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.kernel.metag
Subject: [PATCH 3.10 082/103] metag: Reduce maximum stack size to 256MB
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3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: James Hogan <james.hogan@imgtec.com>

commit d71f290b4e98a39f49f2595a13be3b4d5ce8e1f1 upstream.

Specify the maximum stack size for arches where the stack grows upward
(parisc and metag) in asm/processor.h rather than hard coding in
fs/exec.c so that metag can specify a smaller value of 256MB rather than
1GB.

This fixes a BUG on metag if the RLIMIT_STACK hard limit is increased
beyond a safe value by root. E.g. when starting a process after running
"ulimit -H -s unlimited" it will then attempt to use a stack size of the
maximum 1GB which is far too big for metag's limited user virtual
address space (stack_top is usually 0x3ffff000):

BUG: failure at fs/exec.c:589/shift_arg_pages()!

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Cc: linux-metag@vger.kernel.org
Cc: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/metag/include/asm/processor.h  |    2 ++
 arch/parisc/include/asm/processor.h |    2 ++
 fs/exec.c                           |    6 +++---
 3 files changed, 7 insertions(+), 3 deletions(-)

--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -22,6 +22,8 @@
 /* Add an extra page of padding at the top of the stack for the guard page. */
 #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
 #define STACK_TOP_MAX	STACK_TOP
+/* Maximum virtual space for stack */
+#define STACK_SIZE_MAX	(1 << 28)	/* 256 MB */
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -53,6 +53,8 @@
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
+#define STACK_SIZE_MAX	(1 << 30)	/* 1 GB */
+
 #endif
 
 #ifndef __ASSEMBLY__
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -654,10 +654,10 @@ int setup_arg_pages(struct linux_binprm
 	unsigned long rlim_stack;
 
 #ifdef CONFIG_STACK_GROWSUP
-	/* Limit stack size to 1GB */
+	/* Limit stack size */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;
 
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)


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From - Thu Nov 08 21:10:26 2018
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Subject: [PATCH 3.14 170/228] metag: Reduce maximum stack size to 256MB
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3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: James Hogan <james.hogan@imgtec.com>

commit d71f290b4e98a39f49f2595a13be3b4d5ce8e1f1 upstream.

Specify the maximum stack size for arches where the stack grows upward
(parisc and metag) in asm/processor.h rather than hard coding in
fs/exec.c so that metag can specify a smaller value of 256MB rather than
1GB.

This fixes a BUG on metag if the RLIMIT_STACK hard limit is increased
beyond a safe value by root. E.g. when starting a process after running
"ulimit -H -s unlimited" it will then attempt to use a stack size of the
maximum 1GB which is far too big for metag's limited user virtual
address space (stack_top is usually 0x3ffff000):

BUG: failure at fs/exec.c:589/shift_arg_pages()!

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Cc: linux-metag@vger.kernel.org
Cc: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/metag/include/asm/processor.h  |    2 ++
 arch/parisc/include/asm/processor.h |    2 ++
 fs/exec.c                           |    6 +++---
 3 files changed, 7 insertions(+), 3 deletions(-)

--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -22,6 +22,8 @@
 /* Add an extra page of padding at the top of the stack for the guard page. */
 #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
 #define STACK_TOP_MAX	STACK_TOP
+/* Maximum virtual space for stack */
+#define STACK_SIZE_MAX	(1 << 28)	/* 256 MB */
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -55,6 +55,8 @@
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
+#define STACK_SIZE_MAX	(1 << 30)	/* 1 GB */
+
 #endif
 
 #ifndef __ASSEMBLY__
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -654,10 +654,10 @@ int setup_arg_pages(struct linux_binprm
 	unsigned long rlim_stack;
 
 #ifdef CONFIG_STACK_GROWSUP
-	/* Limit stack size to 1GB */
+	/* Limit stack size */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;
 
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)



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From: Jiri Slaby <jslaby@suse.cz>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.stable,gmane.linux.kernel.metag
Subject: [patch added to the 3.12 stable tree] metag: Reduce maximum stack size to 256MB
Date: Fri,  6 Jun 2014 14:50:55 +0200
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From: James Hogan <james.hogan@imgtec.com>

This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.

===============

commit d71f290b4e98a39f49f2595a13be3b4d5ce8e1f1 upstream.

Specify the maximum stack size for arches where the stack grows upward
(parisc and metag) in asm/processor.h rather than hard coding in
fs/exec.c so that metag can specify a smaller value of 256MB rather than
1GB.

This fixes a BUG on metag if the RLIMIT_STACK hard limit is increased
beyond a safe value by root. E.g. when starting a process after running
"ulimit -H -s unlimited" it will then attempt to use a stack size of the
maximum 1GB which is far too big for metag's limited user virtual
address space (stack_top is usually 0x3ffff000):

BUG: failure at fs/exec.c:589/shift_arg_pages()!

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Cc: linux-metag@vger.kernel.org
Cc: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 arch/metag/include/asm/processor.h  | 2 ++
 arch/parisc/include/asm/processor.h | 2 ++
 fs/exec.c                           | 6 +++---
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index f16477d1f571..3be8581af495 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -22,6 +22,8 @@
 /* Add an extra page of padding at the top of the stack for the guard page. */
 #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
 #define STACK_TOP_MAX	STACK_TOP
+/* Maximum virtual space for stack */
+#define STACK_SIZE_MAX	(1 << 28)	/* 256 MB */
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index cc2290a3cace..c6ee86542fec 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -53,6 +53,8 @@
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
+#define STACK_SIZE_MAX	(1 << 30)	/* 1 GB */
+
 #endif
 
 #ifndef __ASSEMBLY__
diff --git a/fs/exec.c b/fs/exec.c
index bb8afc1d1df4..95eef54de2b6 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -657,10 +657,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	unsigned long rlim_stack;
 
 #ifdef CONFIG_STACK_GROWSUP
-	/* Limit stack size to 1GB */
+	/* Limit stack size */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;
 
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
-- 
1.9.3

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From - Thu Nov 08 21:10:26 2018
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From: Peter Zijlstra <peterz@infradead.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
 cancelable mcs spinlocks
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Cc: Mikulas Patocka <mpatocka@redhat.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	John David Anglin <dave.anglin@bell.net>,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Mon, Jun 02, 2014 at 10:09:35AM -0700, Linus Torvalds wrote:
> On Mon, Jun 2, 2014 at 9:25 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> >
> > And I can't say I'm a particular fan of these ops either, as alternative
> > I'm almost inclined to just exclude parisc from using opt spinning.
> 
> Please do.

Something like so; if the rwsem stuff lands in .15 we need more for
that, it doesn't have a convenient CONFIG symbol like this.

Linus will you take this from email, or should I get it through
tip/locking/urgent or so?

---
Subject: locking, mutex: Disable optimistic spinning for PA-RISC

PA-RISC's cmpxchg is not save against normal stores and the code used
for optimistic spinning is known broken because of this.

Disable for now.

Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
---
 kernel/Kconfig.locks | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index 35536d9c0964..9c239e080c2d 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -222,7 +222,7 @@ endif
 
 config MUTEX_SPIN_ON_OWNER
 	def_bool y
-	depends on SMP && !DEBUG_MUTEXES
+	depends on SMP && !DEBUG_MUTEXES && !PARISC
 
 config ARCH_USE_QUEUE_RWLOCK
 	bool
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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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To: Peter Zijlstra <peterz@infradead.org>
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On Fri, Jun 06, 2014 at 05:06:07PM +0200, Peter Zijlstra wrote:
> On Mon, Jun 02, 2014 at 10:09:35AM -0700, Linus Torvalds wrote:
> > On Mon, Jun 2, 2014 at 9:25 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> > >
> > > And I can't say I'm a particular fan of these ops either, as alternative
> > > I'm almost inclined to just exclude parisc from using opt spinning.
> > 
> > Please do.
> 
> Something like so; if the rwsem stuff lands in .15 we need more for
> that, it doesn't have a convenient CONFIG symbol like this.
> 
> Linus will you take this from email, or should I get it through
> tip/locking/urgent or so?
> 
> ---
> Subject: locking, mutex: Disable optimistic spinning for PA-RISC
> 
> PA-RISC's cmpxchg is not save against normal stores and the code used
> for optimistic spinning is known broken because of this.
> 
> Disable for now.
> 
> Reported-by: Mikulas Patocka <mpatocka@redhat.com>
> Signed-off-by: Peter Zijlstra <peterz@infradead.org>

Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

> ---
>  kernel/Kconfig.locks | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
> index 35536d9c0964..9c239e080c2d 100644
> --- a/kernel/Kconfig.locks
> +++ b/kernel/Kconfig.locks
> @@ -222,7 +222,7 @@ endif
> 
>  config MUTEX_SPIN_ON_OWNER
>  	def_bool y
> -	depends on SMP && !DEBUG_MUTEXES
> +	depends on SMP && !DEBUG_MUTEXES && !PARISC
> 
>  config ARCH_USE_QUEUE_RWLOCK
>  	bool
> 

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From - Thu Nov 08 21:10:27 2018
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Subject: Re: [PATCH v2] introduce atomic_pointer to fix a race condition in
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On Fri, 2014-06-06 at 17:06 +0200, Peter Zijlstra wrote:
> On Mon, Jun 02, 2014 at 10:09:35AM -0700, Linus Torvalds wrote:
> > On Mon, Jun 2, 2014 at 9:25 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> > >
> > > And I can't say I'm a particular fan of these ops either, as alternative
> > > I'm almost inclined to just exclude parisc from using opt spinning.
> > 
> > Please do.
> 
> Something like so; if the rwsem stuff lands in .15 we need more for
> that, it doesn't have a convenient CONFIG symbol like this.
> 
> Linus will you take this from email, or should I get it through
> tip/locking/urgent or so?
> 
> ---
> Subject: locking, mutex: Disable optimistic spinning for PA-RISC
> 
> PA-RISC's cmpxchg is not save against normal stores and the code used
> for optimistic spinning is known broken because of this.
> 
> Disable for now.

I almost hit the send button :)

> 
> Reported-by: Mikulas Patocka <mpatocka@redhat.com>
> Signed-off-by: Peter Zijlstra <peterz@infradead.org>
> ---

Reviewed-by: Davidlohr Bueso <davidlohr@hp.com>


From - Thu Nov 08 21:10:27 2018
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Patch 1 adds a much needed CONFIG_RWSEM_SPIN_ON_OWNER option.
Patch 2 is a quick fix to disable optimistic spinning on PA-RISC.

Thanks!

Davidlohr Bueso (2):
  locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER
  locking/rwsem: Disable optimistic spinning for PA-RISC

 include/linux/rwsem.h  | 4 ++--
 kernel/Kconfig.locks   | 4 ++++
 kernel/locking/rwsem.c | 2 +-
 3 files changed, 7 insertions(+), 3 deletions(-)

-- 
1.8.1.4

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Just like with mutexes (CONFIG_MUTEX_SPIN_ON_OWNER),
encapsulate the dependencies for rwsem optimistic spinning.
No logical changes here as it continues to depend on both
SMP and the XADD algorithm variant.

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
---
 include/linux/rwsem.h  | 4 ++--
 kernel/Kconfig.locks   | 4 ++++
 kernel/locking/rwsem.c | 2 +-
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index 8d79708..accdef7 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -27,7 +27,7 @@ struct rw_semaphore {
 	long count;
 	raw_spinlock_t wait_lock;
 	struct list_head wait_list;
-#ifdef CONFIG_SMP
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 	/*
 	 * Write owner. Used as a speculative check to see
 	 * if the owner is running on the cpu.
@@ -64,7 +64,7 @@ static inline int rwsem_is_locked(struct rw_semaphore *sem)
 # define __RWSEM_DEP_MAP_INIT(lockname)
 #endif
 
-#if defined(CONFIG_SMP) && !defined(CONFIG_RWSEM_GENERIC_SPINLOCK)
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 #define __RWSEM_INITIALIZER(name)			\
 	{ RWSEM_UNLOCKED_VALUE,				\
 	  __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock),	\
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index 35536d9..e4c3162 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -224,6 +224,10 @@ config MUTEX_SPIN_ON_OWNER
 	def_bool y
 	depends on SMP && !DEBUG_MUTEXES
 
+config RWSEM_SPIN_ON_OWNER
+       def_bool y
+       depends on SMP && RWSEM_XCHGADD_ALGORITHM
+
 config ARCH_USE_QUEUE_RWLOCK
 	bool
 
diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
index 42f806d..e2d3bc7 100644
--- a/kernel/locking/rwsem.c
+++ b/kernel/locking/rwsem.c
@@ -12,7 +12,7 @@
 
 #include <linux/atomic.h>
 
-#if defined(CONFIG_SMP) && defined(CONFIG_RWSEM_XCHGADD_ALGORITHM)
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 static inline void rwsem_set_owner(struct rw_semaphore *sem)
 {
 	sem->owner = current;
-- 
1.8.1.4


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Subject: [PATCH 2/2] locking/rwsem: Disable optimistic spinning for PA-RISC
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PA-RISC's cmpxchg is not save against normal stores and the code used
for optimistic spinning is known broken because of this.

Disable for now.

[Changelog from PeterZ]
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
---
 kernel/Kconfig.locks | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index e4c3162..125c77a 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -226,7 +226,7 @@ config MUTEX_SPIN_ON_OWNER
 
 config RWSEM_SPIN_ON_OWNER
        def_bool y
-       depends on SMP && RWSEM_XCHGADD_ALGORITHM
+       depends on SMP && RWSEM_XCHGADD_ALGORITHM && !PARISC
 
 config ARCH_USE_QUEUE_RWLOCK
 	bool
-- 
1.8.1.4


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Subject: Re: [PATCH 2/2] locking/rwsem: Disable optimistic spinning for
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On Fri, 2014-06-06 at 08:55 -0700, Davidlohr Bueso wrote:
> PA-RISC's cmpxchg is not save against normal stores and the code used
> for optimistic spinning is known broken because of this.

What about all the other identified architectures?  The problem is that
unless you can do an atomic Read Modify Write on your architecture, you
have to implement our exchange primitives with locking, and that makes
you unsafe against stores  We happen to be the architecture that
detected this, but I thought we agreed sparc32, metag, tile32, arc and
possibly hexagon have this problem.

Rather than naming all the failing architectures, we probably want an 

ARCH_NO_ATOMIC_RMW

symbol which they select to indicate they can't do atomic exchange and
then you make

depends on SMP && RWSEM_XCHGADD_ALGORITHM &!ARCH_NO_ATOMIC_RMW

So they can all self select (especially if more come crawling out of the
woodwork).

James


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Subject: Re: [PATCH 2/2] locking/rwsem: Disable optimistic spinning for
 PA-RISC
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On Fri, Jun 06, 2014 at 09:09:47AM -0700, James Bottomley wrote:
> On Fri, 2014-06-06 at 08:55 -0700, Davidlohr Bueso wrote:
> > PA-RISC's cmpxchg is not save against normal stores and the code used
> > for optimistic spinning is known broken because of this.
> 
> What about all the other identified architectures?  The problem is that
> unless you can do an atomic Read Modify Write on your architecture, you
> have to implement our exchange primitives with locking, and that makes
> you unsafe against stores  We happen to be the architecture that
> detected this, but I thought we agreed sparc32, metag, tile32, arc and
> possibly hexagon have this problem.
> 
> Rather than naming all the failing architectures, we probably want an 
> 
> ARCH_NO_ATOMIC_RMW

The thing is, all these archs are broken beyond this particular problem,
Mikulas Patocka found a number of other spots.

In any case, sure I can exclude more. Although ideally someone goes do
that __atomic sparse thing to flush out all this.

---
Subject: locking, mutex: Disable optimistic spinning on !RMW archs

For some archs a regular store does not play nice with cmpxchg(), the
optimistic spinning code (and various other places not caught by this)
break this assumption and make things go boom.

Until something better is found, disable optimistic spinning for these
archs.

Cc: James.Bottomley@HansenPartnership.com
Cc: davem@davemloft.net
Cc: james.hogan@imgtec.com
Cc: cmetcalf@tilera.com
Cc: vgupta@synopsys.com
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
---
 kernel/Kconfig.locks | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index d2b32ac27a39..b9c132c48bf1 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -220,6 +220,10 @@ config INLINE_WRITE_UNLOCK_IRQRESTORE
 
 endif
 
+config ARCH_NO_ATOMIC_RMW
+	def_bool y
+	depends on PARISC || SPARC32 || METAG_ATOMICITY_LOCK1 || (TILE && !TILEGX) || (ARC && !ARC_HAS_LLSC)
+
 config MUTEX_SPIN_ON_OWNER
 	def_bool y
-	depends on SMP && !DEBUG_MUTEXES
+	depends on SMP && !DEBUG_MUTEXES && !ARCH_NO_ATOMIC_RMW
--
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To: Davidlohr Bueso <davidlohr@hp.com>
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On Fri, 2014-06-06 at 08:55 -0700, Davidlohr Bueso wrote:
> Just like with mutexes (CONFIG_MUTEX_SPIN_ON_OWNER),
> encapsulate the dependencies for rwsem optimistic spinning.
> No logical changes here as it continues to depend on both
> SMP and the XADD algorithm variant.
> 
> Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
> ---
>  include/linux/rwsem.h  | 4 ++--
>  kernel/Kconfig.locks   | 4 ++++
>  kernel/locking/rwsem.c | 2 +-
>  3 files changed, 7 insertions(+), 3 deletions(-)

Do we also want to add an #ifdef CONFIG_RWSEM_SPIN_ON_OWNER in
__init_rwsem() and in the optimistic spinning functions for rwsem-xadd?


Besides that:

Acked-by: Jason Low <jason.low2@hp.com>


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From: Chris Metcalf <cmetcalf@tilera.com>
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Subject: Re: [PATCH 2/2] locking/rwsem: Disable optimistic spinning for PA-RISC
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On 6/6/2014 1:11 PM, Peter Zijlstra wrote:
> The thing is, all these archs are broken beyond this particular problem,
> Mikulas Patocka found a number of other spots.
>
> In any case, sure I can exclude more. Although ideally someone goes do
> that __atomic sparse thing to flush out all this.
>
> ---
> Subject: locking, mutex: Disable optimistic spinning on !RMW archs
>
> For some archs a regular store does not play nice with cmpxchg(), the
> optimistic spinning code (and various other places not caught by this)
> break this assumption and make things go boom.
>
> Until something better is found, disable optimistic spinning for these
> archs.
>
> [..]
>   
> +config ARCH_NO_ATOMIC_RMW
> +	def_bool y
> +	depends on PARISC || SPARC32 || METAG_ATOMICITY_LOCK1 || (TILE && !TILEGX) || (ARC && !ARC_HAS_LLSC)

For tile:

Acked-by: Chris Metcalf <cmetcalf@tilera.com>

But you should use "TILEPRO" (added in kernel 3.5) instead of "(TILE && !TILEGX)".

-- 
Chris Metcalf, Tilera Corp.
http://www.tilera.com


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Subject: Re: [PATCH 2/2] locking/rwsem: Disable optimistic spinning for PA-RISC
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To: Peter Zijlstra <peterz@infradead.org>
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On Fri, Jun 6, 2014 at 10:11 AM, Peter Zijlstra <peterz@infradead.org> wrote:
>
> +config ARCH_NO_ATOMIC_RMW
> +       def_bool y
> +       depends on PARISC || SPARC32 || METAG_ATOMICITY_LOCK1 || (TILE && !TILEGX) || (ARC && !ARC_HAS_LLSC)

Ugh. We've had these kinds of things before, and they are broken and
nasty to maintain.

Just make it

    config ARCH_SUPPORTS_ATOMIC_RMW
        bool

which defaults to no. And then make MUTEX_SPIN_ON_OWNER depend on that.

And then we can add "select ARCH_SUPPORTS_ATOMIC_RMW" to the few
architectures we (a) care about and (b) know work. So start with x86,
arm, powerpc and sparc64, and then the rest can just add their own
oneliners if they care.

Remember, most people really won't ever care about this, simply
because it only matters if you have enough CPU's for the whole
spinning thing to make a noticeable difference.  So missing some odd
architecture _really_ doesn't matter.

And we really really *really* shouldn't have these kinds of "random
really odd architecture details" in the generic code, not even if it's
something as specific as kernel/Kconfig.locks.

               Linus

              Linus

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From: Peter Zijlstra <peterz@infradead.org>
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Subject: Re: [PATCH 2/2] locking/rwsem: Disable optimistic spinning for
 PA-RISC
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
	Davidlohr Bueso <davidlohr@hp.com>,
	Ingo Molnar <mingo@kernel.org>,
	Mikulas Patocka <mpatocka@redhat.com>,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Fri, Jun 06, 2014 at 10:22:21AM -0700, Linus Torvalds wrote:
> On Fri, Jun 6, 2014 at 10:11 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> >
> > +config ARCH_NO_ATOMIC_RMW
> > +       def_bool y
> > +       depends on PARISC || SPARC32 || METAG_ATOMICITY_LOCK1 || (TILE && !TILEGX) || (ARC && !ARC_HAS_LLSC)
> 
> Ugh. We've had these kinds of things before, and they are broken and
> nasty to maintain.
> 
> Just make it
> 
>     config ARCH_SUPPORTS_ATOMIC_RMW
>         bool
> 
> which defaults to no. And then make MUTEX_SPIN_ON_OWNER depend on that.

---
Subject: locking, mutex: Make optimistic spinning depend on ARCH_SUPPORTS_ATOMIC_RMW

The optimistic spin code assumes regular stores and cmpxchg() play nice;
this is found to not be true for at least: parisc, sparc32, tile32,
metag-lock1, arc-!llsc and hexagon.

There is further wreckage, but this in particular seemed easy to
trigger, so blacklist this.

Opt in for known good archs.

Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
---
 arch/arm/Kconfig     | 1 +
 arch/arm64/Kconfig   | 1 +
 arch/powerpc/Kconfig | 1 +
 arch/sparc/Kconfig   | 1 +
 arch/x86/Kconfig     | 1 +
 kernel/Kconfig.locks | 5 ++++-
 6 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a2c1a18a7275..b8a6a5078eae 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -6,6 +6,7 @@ config ARM
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_HAVE_CUSTOM_GPIO_H
 	select ARCH_MIGHT_HAVE_PC_PARPORT
+	select ARCH_SUPPORTS_ATOMIC_RMW
 	select ARCH_USE_BUILTIN_BSWAP
 	select ARCH_USE_CMPXCHG_LOCKREF
 	select ARCH_WANT_IPC_PARSE_VERSION
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 5c30b10c0f6c..339dc07f15e2 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -3,6 +3,7 @@ config ARM64
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_USE_CMPXCHG_LOCKREF
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
+	select ARCH_SUPPORTS_ATOMIC_RMW
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
 	select ARCH_WANT_FRAME_POINTERS
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index e0998997943b..5bb96f282373 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -145,6 +145,7 @@ config PPC
 	select HAVE_IRQ_EXIT_ON_IRQ_STACK
 	select ARCH_USE_CMPXCHG_LOCKREF if PPC64
 	select HAVE_ARCH_AUDITSYSCALL
+	select ARCH_SUPPORTS_ATOMIC_RMW
 
 config GENERIC_CSUM
 	def_bool CPU_LITTLE_ENDIAN
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 29f2e988c56a..407c87d9879a 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -78,6 +78,7 @@ config SPARC64
 	select HAVE_C_RECORDMCOUNT
 	select NO_BOOTMEM
 	select HAVE_ARCH_AUDITSYSCALL
+	select ARCH_SUPPORTS_ATOMIC_RMW
 
 config ARCH_DEFCONFIG
 	string
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 3d4951d35587..2fe1f7c5994e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -130,6 +130,7 @@ config X86
 	select HAVE_CC_STACKPROTECTOR
 	select GENERIC_CPU_AUTOPROBE
 	select HAVE_ARCH_AUDITSYSCALL
+	select ARCH_SUPPORTS_ATOMIC_RMW
 
 config INSTRUCTION_DECODER
 	def_bool y
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index d2b32ac27a39..ecee67a00f5f 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -220,6 +220,9 @@ config INLINE_WRITE_UNLOCK_IRQRESTORE
 
 endif
 
+config ARCH_SUPPORTS_ATOMIC_RMW
+	bool
+
 config MUTEX_SPIN_ON_OWNER
 	def_bool y
-	depends on SMP && !DEBUG_MUTEXES
+	depends on SMP && !DEBUG_MUTEXES && ARCH_SUPPORTS_ATOMIC_RMW

From - Thu Nov 08 21:10:28 2018
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X-Mozilla-Keys:                                                                                 
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH 2/2] locking/rwsem: Disable optimistic spinning for
 PA-RISC
Date: Fri, 06 Jun 2014 10:57:07 -0700
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Davidlohr Bueso <davidlohr@hp.com>,
	Ingo Molnar <mingo@kernel.org>,
	Mikulas Patocka <mpatocka@redhat.com>,
	Jason Low <jason.low2@hp.com>,
	Waiman Long <waiman.long@hp.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Paul McKenney <paulmck@linux.vnet.ibm.com>,
	John David Anglin <dave.anglin@bell.net>,
	"Chandramouleeswaran, Aswin" <aswin@hp.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Parisc List <linux-parisc@vger.kernel.org>,
	David Miller <davem@davemloft.net>,
	James Hogan <james.hogan@imgtec.com>,
	Chris Metcalf <cmetcalf@tilera.com>,
	Vineet Gupta <vgupta@synopsys.com>
To: Peter Zijlstra <peterz@infradead.org>
Original-X-From: linux-kernel-owner@vger.kernel.org Fri Jun 06 19:57:25 2014
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On Fri, 2014-06-06 at 19:53 +0200, Peter Zijlstra wrote:
> On Fri, Jun 06, 2014 at 10:22:21AM -0700, Linus Torvalds wrote:
> > On Fri, Jun 6, 2014 at 10:11 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> > >
> > > +config ARCH_NO_ATOMIC_RMW
> > > +       def_bool y
> > > +       depends on PARISC || SPARC32 || METAG_ATOMICITY_LOCK1 || (TILE && !TILEGX) || (ARC && !ARC_HAS_LLSC)
> > 
> > Ugh. We've had these kinds of things before, and they are broken and
> > nasty to maintain.
> > 
> > Just make it
> > 
> >     config ARCH_SUPPORTS_ATOMIC_RMW
> >         bool
> > 
> > which defaults to no. And then make MUTEX_SPIN_ON_OWNER depend on that.
> 
> ---
> Subject: locking, mutex: Make optimistic spinning depend on ARCH_SUPPORTS_ATOMIC_RMW
> 
> The optimistic spin code assumes regular stores and cmpxchg() play nice;
> this is found to not be true for at least: parisc, sparc32, tile32,
> metag-lock1, arc-!llsc and hexagon.
> 
> There is further wreckage, but this in particular seemed easy to
> trigger, so blacklist this.
> 
> Opt in for known good archs.
> 
> Reported-by: Mikulas Patocka <mpatocka@redhat.com>
> Signed-off-by: Peter Zijlstra <peterz@infradead.org>
> ---
>  arch/arm/Kconfig     | 1 +
>  arch/arm64/Kconfig   | 1 +
>  arch/powerpc/Kconfig | 1 +
>  arch/sparc/Kconfig   | 1 +
>  arch/x86/Kconfig     | 1 +
>  kernel/Kconfig.locks | 5 ++++-
>  6 files changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index a2c1a18a7275..b8a6a5078eae 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -6,6 +6,7 @@ config ARM
>  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
>  	select ARCH_HAVE_CUSTOM_GPIO_H
>  	select ARCH_MIGHT_HAVE_PC_PARPORT
> +	select ARCH_SUPPORTS_ATOMIC_RMW
>  	select ARCH_USE_BUILTIN_BSWAP
>  	select ARCH_USE_CMPXCHG_LOCKREF
>  	select ARCH_WANT_IPC_PARSE_VERSION
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 5c30b10c0f6c..339dc07f15e2 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -3,6 +3,7 @@ config ARM64
>  	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
>  	select ARCH_USE_CMPXCHG_LOCKREF
>  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
> +	select ARCH_SUPPORTS_ATOMIC_RMW
>  	select ARCH_WANT_OPTIONAL_GPIOLIB
>  	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
>  	select ARCH_WANT_FRAME_POINTERS
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index e0998997943b..5bb96f282373 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -145,6 +145,7 @@ config PPC
>  	select HAVE_IRQ_EXIT_ON_IRQ_STACK
>  	select ARCH_USE_CMPXCHG_LOCKREF if PPC64
>  	select HAVE_ARCH_AUDITSYSCALL
> +	select ARCH_SUPPORTS_ATOMIC_RMW
>  
>  config GENERIC_CSUM
>  	def_bool CPU_LITTLE_ENDIAN
> diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
> index 29f2e988c56a..407c87d9879a 100644
> --- a/arch/sparc/Kconfig
> +++ b/arch/sparc/Kconfig
> @@ -78,6 +78,7 @@ config SPARC64
>  	select HAVE_C_RECORDMCOUNT
>  	select NO_BOOTMEM
>  	select HAVE_ARCH_AUDITSYSCALL
> +	select ARCH_SUPPORTS_ATOMIC_RMW

Sparc64 does, Sparc32 doesn't, so shouldn't that be

select ARCH_SUPPORTS_ATOMIC_RMW if 64BIT

?

Other than this, looks good to me (you can add reviewed by or acked by
from me to your taste).

James



From - Thu Nov 08 21:10:28 2018
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X-Mozilla-Keys:                                                                                 
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH 2/2] locking/rwsem: Disable optimistic spinning for
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Davidlohr Bueso <davidlohr@hp.com>,
	Ingo Molnar <mingo@kernel.org>,
	Mikulas Patocka <mpatocka@redhat.com>,
	Jason Low <jason.low2@hp.com>,
	Waiman Long <waiman.long@hp.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Paul McKenney <paulmck@linux.vnet.ibm.com>,
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	"Chandramouleeswaran, Aswin" <aswin@hp.com>,
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	James Hogan <james.hogan@imgtec.com>,
	Chris Metcalf <cmetcalf@tilera.com>,
	Vineet Gupta <vgupta@synopsys.com>
To: Peter Zijlstra <peterz@infradead.org>
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On Fri, 2014-06-06 at 10:57 -0700, James Bottomley wrote:
> On Fri, 2014-06-06 at 19:53 +0200, Peter Zijlstra wrote:
> > On Fri, Jun 06, 2014 at 10:22:21AM -0700, Linus Torvalds wrote:
> > > On Fri, Jun 6, 2014 at 10:11 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> > > >
> > > > +config ARCH_NO_ATOMIC_RMW
> > > > +       def_bool y
> > > > +       depends on PARISC || SPARC32 || METAG_ATOMICITY_LOCK1 || (TILE && !TILEGX) || (ARC && !ARC_HAS_LLSC)
> > > 
> > > Ugh. We've had these kinds of things before, and they are broken and
> > > nasty to maintain.
> > > 
> > > Just make it
> > > 
> > >     config ARCH_SUPPORTS_ATOMIC_RMW
> > >         bool
> > > 
> > > which defaults to no. And then make MUTEX_SPIN_ON_OWNER depend on that.
> > 
> > ---
> > Subject: locking, mutex: Make optimistic spinning depend on ARCH_SUPPORTS_ATOMIC_RMW
> > 
> > The optimistic spin code assumes regular stores and cmpxchg() play nice;
> > this is found to not be true for at least: parisc, sparc32, tile32,
> > metag-lock1, arc-!llsc and hexagon.
> > 
> > There is further wreckage, but this in particular seemed easy to
> > trigger, so blacklist this.
> > 
> > Opt in for known good archs.
> > 
> > Reported-by: Mikulas Patocka <mpatocka@redhat.com>
> > Signed-off-by: Peter Zijlstra <peterz@infradead.org>
> > ---
> >  arch/arm/Kconfig     | 1 +
> >  arch/arm64/Kconfig   | 1 +
> >  arch/powerpc/Kconfig | 1 +
> >  arch/sparc/Kconfig   | 1 +
> >  arch/x86/Kconfig     | 1 +
> >  kernel/Kconfig.locks | 5 ++++-
> >  6 files changed, 9 insertions(+), 1 deletion(-)
> > 
> > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> > index a2c1a18a7275..b8a6a5078eae 100644
> > --- a/arch/arm/Kconfig
> > +++ b/arch/arm/Kconfig
> > @@ -6,6 +6,7 @@ config ARM
> >  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
> >  	select ARCH_HAVE_CUSTOM_GPIO_H
> >  	select ARCH_MIGHT_HAVE_PC_PARPORT
> > +	select ARCH_SUPPORTS_ATOMIC_RMW
> >  	select ARCH_USE_BUILTIN_BSWAP
> >  	select ARCH_USE_CMPXCHG_LOCKREF
> >  	select ARCH_WANT_IPC_PARSE_VERSION
> > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> > index 5c30b10c0f6c..339dc07f15e2 100644
> > --- a/arch/arm64/Kconfig
> > +++ b/arch/arm64/Kconfig
> > @@ -3,6 +3,7 @@ config ARM64
> >  	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
> >  	select ARCH_USE_CMPXCHG_LOCKREF
> >  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
> > +	select ARCH_SUPPORTS_ATOMIC_RMW
> >  	select ARCH_WANT_OPTIONAL_GPIOLIB
> >  	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
> >  	select ARCH_WANT_FRAME_POINTERS
> > diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> > index e0998997943b..5bb96f282373 100644
> > --- a/arch/powerpc/Kconfig
> > +++ b/arch/powerpc/Kconfig
> > @@ -145,6 +145,7 @@ config PPC
> >  	select HAVE_IRQ_EXIT_ON_IRQ_STACK
> >  	select ARCH_USE_CMPXCHG_LOCKREF if PPC64
> >  	select HAVE_ARCH_AUDITSYSCALL
> > +	select ARCH_SUPPORTS_ATOMIC_RMW
> >  
> >  config GENERIC_CSUM
> >  	def_bool CPU_LITTLE_ENDIAN
> > diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
> > index 29f2e988c56a..407c87d9879a 100644
> > --- a/arch/sparc/Kconfig
> > +++ b/arch/sparc/Kconfig
> > @@ -78,6 +78,7 @@ config SPARC64
> >  	select HAVE_C_RECORDMCOUNT
> >  	select NO_BOOTMEM
> >  	select HAVE_ARCH_AUDITSYSCALL
> > +	select ARCH_SUPPORTS_ATOMIC_RMW
> 
> Sparc64 does, Sparc32 doesn't, so shouldn't that be
> 
> select ARCH_SUPPORTS_ATOMIC_RMW if 64BIT
> 
> ?
> 
> Other than this, looks good to me (you can add reviewed by or acked by
> from me to your taste).

Oh, wait, I see how sparc does it, never mind ...

James



From - Thu Nov 08 21:10:28 2018
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From: Peter Zijlstra <peterz@infradead.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 2/2] locking/rwsem: Disable optimistic spinning for
 PA-RISC
Date: Fri, 6 Jun 2014 20:01:02 +0200
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Davidlohr Bueso <davidlohr@hp.com>,
	Ingo Molnar <mingo@kernel.org>,
	Mikulas Patocka <mpatocka@redhat.com>,
	Jason Low <jason.low2@hp.com>,
	Waiman Long <waiman.long@hp.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Paul McKenney <paulmck@linux.vnet.ibm.com>,
	John David Anglin <dave.anglin@bell.net>,
	"Chandramouleeswaran, Aswin" <aswin@hp.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Parisc List <linux-parisc@vger.kernel.org>,
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	James Hogan <james.hogan@imgtec.com>,
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	Vineet Gupta <vgupta@synopsys.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Fri, Jun 06, 2014 at 10:57:07AM -0700, James Bottomley wrote:
> > diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
> > index 29f2e988c56a..407c87d9879a 100644
> > --- a/arch/sparc/Kconfig
> > +++ b/arch/sparc/Kconfig
> > @@ -78,6 +78,7 @@ config SPARC64
                      ^^^^^^^^^^^^^^


> >  	select HAVE_C_RECORDMCOUNT
> >  	select NO_BOOTMEM
> >  	select HAVE_ARCH_AUDITSYSCALL
> > +	select ARCH_SUPPORTS_ATOMIC_RMW
> 
> Sparc64 does, Sparc32 doesn't, so shouldn't that be
> 
> select ARCH_SUPPORTS_ATOMIC_RMW if 64BIT
> 
> ?

arch/sparc/Kconfig has 3 large sections:

config SPARC (included in both)
config SPARC32 (specific to 32bit)
config SPARC64 (specific to 64bit)

I added it to the last.
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Subject: Re: [PATCH 1/2] locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER
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On Fri, 2014-06-06 at 10:13 -0700, Jason Low wrote:
> On Fri, 2014-06-06 at 08:55 -0700, Davidlohr Bueso wrote:
> > Just like with mutexes (CONFIG_MUTEX_SPIN_ON_OWNER),
> > encapsulate the dependencies for rwsem optimistic spinning.
> > No logical changes here as it continues to depend on both
> > SMP and the XADD algorithm variant.
> > 
> > Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
> > ---
> >  include/linux/rwsem.h  | 4 ++--
> >  kernel/Kconfig.locks   | 4 ++++
> >  kernel/locking/rwsem.c | 2 +-
> >  3 files changed, 7 insertions(+), 3 deletions(-)
> 
> Do we also want to add an #ifdef CONFIG_RWSEM_SPIN_ON_OWNER in
> __init_rwsem() and in the optimistic spinning functions for rwsem-xadd?
> 

Not really, as we conditionally build rwsem-xadd.o based on
CONFIG_RWSEM_XCHGADD_ALGORITHM:

obj-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o
obj-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem-xadd.o

So leaving just SMP is ok there.

> 
> Besides that:
> 
> Acked-by: Jason Low <jason.low2@hp.com>
> 

Thanks,
Davidlohr


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Subject: Re: [PATCH 1/2] locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER
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On Fri, 2014-06-06 at 11:12 -0700, Davidlohr Bueso wrote:
> On Fri, 2014-06-06 at 10:13 -0700, Jason Low wrote:
> > On Fri, 2014-06-06 at 08:55 -0700, Davidlohr Bueso wrote:
> > > Just like with mutexes (CONFIG_MUTEX_SPIN_ON_OWNER),
> > > encapsulate the dependencies for rwsem optimistic spinning.
> > > No logical changes here as it continues to depend on both
> > > SMP and the XADD algorithm variant.
> > > 
> > > Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
> > > ---
> > >  include/linux/rwsem.h  | 4 ++--
> > >  kernel/Kconfig.locks   | 4 ++++
> > >  kernel/locking/rwsem.c | 2 +-
> > >  3 files changed, 7 insertions(+), 3 deletions(-)
> > 
> > Do we also want to add an #ifdef CONFIG_RWSEM_SPIN_ON_OWNER in
> > __init_rwsem() and in the optimistic spinning functions for rwsem-xadd?
> > 
> 
> Not really, as we conditionally build rwsem-xadd.o based on
> CONFIG_RWSEM_XCHGADD_ALGORITHM:
> 
> obj-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o
> obj-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem-xadd.o
> 
> So leaving just SMP is ok there.

Of course that's bogus when we add more dependencies (ie 2/2), so yeah,
we need to add the whole CONFIG_RWSEM_SPIN_ON_OWNER option.

Thanks.

8<---------------------------------------------------------
From: Davidlohr Bueso <davidlohr@hp.com>
Date: Fri, 6 Jun 2014 11:45:34 -0700
Subject: [PATCH v2 1/2] locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER

Just like with mutexes (CONFIG_MUTEX_SPIN_ON_OWNER),
encapsulate the dependencies for rwsem optimistic spinning.
No logical changes here as it continues to depend on both
SMP and the XADD algorithm variant.

Acked-by: Jason Low <jason.low2@hp.com>
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
---
 include/linux/rwsem.h       | 4 ++--
 kernel/Kconfig.locks        | 4 ++++
 kernel/locking/rwsem-xadd.c | 2 +-
 kernel/locking/rwsem.c      | 2 +-
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index 8d79708..accdef7 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -27,7 +27,7 @@ struct rw_semaphore {
 	long count;
 	raw_spinlock_t wait_lock;
 	struct list_head wait_list;
-#ifdef CONFIG_SMP
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 	/*
 	 * Write owner. Used as a speculative check to see
 	 * if the owner is running on the cpu.
@@ -64,7 +64,7 @@ static inline int rwsem_is_locked(struct rw_semaphore *sem)
 # define __RWSEM_DEP_MAP_INIT(lockname)
 #endif
 
-#if defined(CONFIG_SMP) && !defined(CONFIG_RWSEM_GENERIC_SPINLOCK)
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 #define __RWSEM_INITIALIZER(name)			\
 	{ RWSEM_UNLOCKED_VALUE,				\
 	  __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock),	\
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index 35536d9..e4c3162 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -224,6 +224,10 @@ config MUTEX_SPIN_ON_OWNER
 	def_bool y
 	depends on SMP && !DEBUG_MUTEXES
 
+config RWSEM_SPIN_ON_OWNER
+       def_bool y
+       depends on SMP && RWSEM_XCHGADD_ALGORITHM
+
 config ARCH_USE_QUEUE_RWLOCK
 	bool
 
diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
index dacc321..f6b5b96 100644
--- a/kernel/locking/rwsem-xadd.c
+++ b/kernel/locking/rwsem-xadd.c
@@ -82,7 +82,7 @@ void __init_rwsem(struct rw_semaphore *sem, const char *name,
 	sem->count = RWSEM_UNLOCKED_VALUE;
 	raw_spin_lock_init(&sem->wait_lock);
 	INIT_LIST_HEAD(&sem->wait_list);
-#ifdef CONFIG_SMP
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 	sem->owner = NULL;
 	sem->osq = NULL;
 #endif
diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
index 42f806d..e2d3bc7 100644
--- a/kernel/locking/rwsem.c
+++ b/kernel/locking/rwsem.c
@@ -12,7 +12,7 @@
 
 #include <linux/atomic.h>
 
-#if defined(CONFIG_SMP) && defined(CONFIG_RWSEM_XCHGADD_ALGORITHM)
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 static inline void rwsem_set_owner(struct rw_semaphore *sem)
 {
 	sem->owner = current;
-- 
1.8.1.4




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On Fri, 2014-06-06 at 11:48 -0700, Davidlohr Bueso wrote:
> On Fri, 2014-06-06 at 11:12 -0700, Davidlohr Bueso wrote:
> > On Fri, 2014-06-06 at 10:13 -0700, Jason Low wrote:
> > > On Fri, 2014-06-06 at 08:55 -0700, Davidlohr Bueso wrote:
> > > > Just like with mutexes (CONFIG_MUTEX_SPIN_ON_OWNER),
> > > > encapsulate the dependencies for rwsem optimistic spinning.
> > > > No logical changes here as it continues to depend on both
> > > > SMP and the XADD algorithm variant.
> > > > 
> > > > Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
> > > > ---
> > > >  include/linux/rwsem.h  | 4 ++--
> > > >  kernel/Kconfig.locks   | 4 ++++
> > > >  kernel/locking/rwsem.c | 2 +-
> > > >  3 files changed, 7 insertions(+), 3 deletions(-)
> > > 
> > > Do we also want to add an #ifdef CONFIG_RWSEM_SPIN_ON_OWNER in
> > > __init_rwsem() and in the optimistic spinning functions for rwsem-xadd?
> > > 
> > 
> > Not really, as we conditionally build rwsem-xadd.o based on
> > CONFIG_RWSEM_XCHGADD_ALGORITHM:
> > 
> > obj-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o
> > obj-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem-xadd.o
> > 
> > So leaving just SMP is ok there.
> 
> Of course that's bogus when we add more dependencies (ie 2/2), so yeah,
> we need to add the whole CONFIG_RWSEM_SPIN_ON_OWNER option.
> 
> Thanks.

> diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
> index dacc321..f6b5b96 100644
> --- a/kernel/locking/rwsem-xadd.c
> +++ b/kernel/locking/rwsem-xadd.c
> @@ -82,7 +82,7 @@ void __init_rwsem(struct rw_semaphore *sem, const char *name,
>  	sem->count = RWSEM_UNLOCKED_VALUE;
>  	raw_spin_lock_init(&sem->wait_lock);
>  	INIT_LIST_HEAD(&sem->wait_list);
> -#ifdef CONFIG_SMP
> +#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
>  	sem->owner = NULL;
>  	sem->osq = NULL;
>  #endif

And should we also change that in the optimistic spinning functions so
that it defaults to:

	static bool rwsem_optimistic_spin(struct rw_semaphore *sem)
	{
        	return false;
	}

in the !CONFIG_RWSEM_SPIN_ON_OWNER case.

Thanks.

> diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
> index 42f806d..e2d3bc7 100644
> --- a/kernel/locking/rwsem.c
> +++ b/kernel/locking/rwsem.c
> @@ -12,7 +12,7 @@
>  
>  #include <linux/atomic.h>
>  
> -#if defined(CONFIG_SMP) && defined(CONFIG_RWSEM_XCHGADD_ALGORITHM)
> +#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
>  static inline void rwsem_set_owner(struct rw_semaphore *sem)
>  {
>  	sem->owner = current;



From - Thu Nov 08 21:10:28 2018
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From: Davidlohr Bueso <davidlohr@hp.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 1/2] locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER
Date: Fri, 06 Jun 2014 12:20:41 -0700
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On Fri, 2014-06-06 at 12:08 -0700, Jason Low wrote:
> And should we also change that in the optimistic spinning functions so
> that it defaults to:
> 
> 	static bool rwsem_optimistic_spin(struct rw_semaphore *sem)
> 	{
>         	return false;
> 	}

Oops Yep, afaict the last offending user.

8<----------------------------------
From: Davidlohr Bueso <davidlohr@hp.com>
Date: Fri, 6 Jun 2014 12:15:03 -0700
Subject: [PATCH v3 1/2] locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER

Just like with mutexes (CONFIG_MUTEX_SPIN_ON_OWNER),
encapsulate the dependencies for rwsem optimistic spinning.
No logical changes here as it continues to depend on both
SMP and the XADD algorithm variant.

Acked-by: Jason Low <jason.low2@hp.com>
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
---
 include/linux/rwsem.h       | 4 ++--
 kernel/Kconfig.locks        | 4 ++++
 kernel/locking/rwsem-xadd.c | 4 ++--
 kernel/locking/rwsem.c      | 2 +-
 4 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index 8d79708..accdef7 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -27,7 +27,7 @@ struct rw_semaphore {
 	long count;
 	raw_spinlock_t wait_lock;
 	struct list_head wait_list;
-#ifdef CONFIG_SMP
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 	/*
 	 * Write owner. Used as a speculative check to see
 	 * if the owner is running on the cpu.
@@ -64,7 +64,7 @@ static inline int rwsem_is_locked(struct rw_semaphore *sem)
 # define __RWSEM_DEP_MAP_INIT(lockname)
 #endif
 
-#if defined(CONFIG_SMP) && !defined(CONFIG_RWSEM_GENERIC_SPINLOCK)
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 #define __RWSEM_INITIALIZER(name)			\
 	{ RWSEM_UNLOCKED_VALUE,				\
 	  __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock),	\
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index 35536d9..e4c3162 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -224,6 +224,10 @@ config MUTEX_SPIN_ON_OWNER
 	def_bool y
 	depends on SMP && !DEBUG_MUTEXES
 
+config RWSEM_SPIN_ON_OWNER
+       def_bool y
+       depends on SMP && RWSEM_XCHGADD_ALGORITHM
+
 config ARCH_USE_QUEUE_RWLOCK
 	bool
 
diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
index dacc321..abe6e06 100644
--- a/kernel/locking/rwsem-xadd.c
+++ b/kernel/locking/rwsem-xadd.c
@@ -82,7 +82,7 @@ void __init_rwsem(struct rw_semaphore *sem, const char *name,
 	sem->count = RWSEM_UNLOCKED_VALUE;
 	raw_spin_lock_init(&sem->wait_lock);
 	INIT_LIST_HEAD(&sem->wait_list);
-#ifdef CONFIG_SMP
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 	sem->owner = NULL;
 	sem->osq = NULL;
 #endif
@@ -262,7 +262,7 @@ static inline bool rwsem_try_write_lock(long count, struct rw_semaphore *sem)
 	return false;
 }
 
-#ifdef CONFIG_SMP
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 /*
  * Try to acquire write lock before the writer has been put on wait queue.
  */
diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
index 42f806d..e2d3bc7 100644
--- a/kernel/locking/rwsem.c
+++ b/kernel/locking/rwsem.c
@@ -12,7 +12,7 @@
 
 #include <linux/atomic.h>
 
-#if defined(CONFIG_SMP) && defined(CONFIG_RWSEM_XCHGADD_ALGORITHM)
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 static inline void rwsem_set_owner(struct rw_semaphore *sem)
 {
 	sem->owner = current;
-- 
1.8.1.4




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From - Thu Nov 08 21:10:28 2018
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From: Jiri Slaby <jslaby@suse.cz>
Newsgroups: gmane.linux.kernel.stable,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.metag
Subject: [PATCH 3.12 111/146] metag: Reduce maximum stack size to 256MB
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From: James Hogan <james.hogan@imgtec.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit d71f290b4e98a39f49f2595a13be3b4d5ce8e1f1 upstream.

Specify the maximum stack size for arches where the stack grows upward
(parisc and metag) in asm/processor.h rather than hard coding in
fs/exec.c so that metag can specify a smaller value of 256MB rather than
1GB.

This fixes a BUG on metag if the RLIMIT_STACK hard limit is increased
beyond a safe value by root. E.g. when starting a process after running
"ulimit -H -s unlimited" it will then attempt to use a stack size of the
maximum 1GB which is far too big for metag's limited user virtual
address space (stack_top is usually 0x3ffff000):

BUG: failure at fs/exec.c:589/shift_arg_pages()!

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Cc: linux-metag@vger.kernel.org
Cc: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 arch/metag/include/asm/processor.h  | 2 ++
 arch/parisc/include/asm/processor.h | 2 ++
 fs/exec.c                           | 6 +++---
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index f16477d1f571..3be8581af495 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -22,6 +22,8 @@
 /* Add an extra page of padding at the top of the stack for the guard page. */
 #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
 #define STACK_TOP_MAX	STACK_TOP
+/* Maximum virtual space for stack */
+#define STACK_SIZE_MAX	(1 << 28)	/* 256 MB */
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index cc2290a3cace..c6ee86542fec 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -53,6 +53,8 @@
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
+#define STACK_SIZE_MAX	(1 << 30)	/* 1 GB */
+
 #endif
 
 #ifndef __ASSEMBLY__
diff --git a/fs/exec.c b/fs/exec.c
index bb8afc1d1df4..95eef54de2b6 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -657,10 +657,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	unsigned long rlim_stack;
 
 #ifdef CONFIG_STACK_GROWSUP
-	/* Limit stack size to 1GB */
+	/* Limit stack size */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;
 
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
-- 
1.9.3


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Subject: [PATCH 12/24] drivers/parisc: return actual error on pdc_stable_init
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From: Jie Liu <jeff.liu@oracle.com>

Return the actual error code than ENOMEM if call kset_create_and_add()
failed at pdc_stable_init().

Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
---
 drivers/parisc/pdc_stable.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 0f54ab6..3daca50 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -1065,8 +1065,8 @@ pdc_stable_init(void)
 
 	/* register the paths kset as a child of the stable kset */
 	paths_kset = kset_create_and_add("paths", NULL, stable_kobj);
-	if (!paths_kset) {
-		rc = -ENOMEM;
+	if (IS_ERR(paths_kset)) {
+		rc = PTR_ERR(paths_kset);
 		goto fail_ksetreg;
 	}
 
-- 
1.8.3.2
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Subject: [3.13.y.z extended stable] Patch "metag: Reduce maximum stack size to 256MB" has been added to staging queue
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This is a note to let you know that I have just added a patch titled

    metag: Reduce maximum stack size to 256MB

to the linux-3.13.y-queue branch of the 3.13.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue

This patch is scheduled to be released in version 3.13.11.4.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 8dd77187cf712fc849df3725f3676dbe61c4a4ff Mon Sep 17 00:00:00 2001
From: James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
Date: Tue, 13 May 2014 23:58:24 +0100
Subject: metag: Reduce maximum stack size to 256MB

commit d71f290b4e98a39f49f2595a13be3b4d5ce8e1f1 upstream.

Specify the maximum stack size for arches where the stack grows upward
(parisc and metag) in asm/processor.h rather than hard coding in
fs/exec.c so that metag can specify a smaller value of 256MB rather than
1GB.

This fixes a BUG on metag if the RLIMIT_STACK hard limit is increased
beyond a safe value by root. E.g. when starting a process after running
"ulimit -H -s unlimited" it will then attempt to use a stack size of the
maximum 1GB which is far too big for metag's limited user virtual
address space (stack_top is usually 0x3ffff000):

BUG: failure at fs/exec.c:589/shift_arg_pages()!

Signed-off-by: James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
Cc: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
Cc: "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: John David Anglin <dave.anglin-CzeTG9NwML0@public.gmane.org>
Signed-off-by: Kamal Mostafa <kamal-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
---
 arch/metag/include/asm/processor.h  | 2 ++
 arch/parisc/include/asm/processor.h | 2 ++
 fs/exec.c                           | 6 +++---
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index f16477d..3be8581 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -22,6 +22,8 @@
 /* Add an extra page of padding at the top of the stack for the guard page. */
 #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
 #define STACK_TOP_MAX	STACK_TOP
+/* Maximum virtual space for stack */
+#define STACK_SIZE_MAX	(1 << 28)	/* 256 MB */

 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index cc2290a..c6ee865 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -53,6 +53,8 @@
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE

+#define STACK_SIZE_MAX	(1 << 30)	/* 1 GB */
+
 #endif

 #ifndef __ASSEMBLY__
diff --git a/fs/exec.c b/fs/exec.c
index 7ea097f..5743b8f 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -655,10 +655,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	unsigned long rlim_stack;

 #ifdef CONFIG_STACK_GROWSUP
-	/* Limit stack size to 1GB */
+	/* Limit stack size */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;

 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
--
1.9.1

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From - Thu Nov 08 21:10:28 2018
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From: Kamal Mostafa <kamal@canonical.com>
Newsgroups: gmane.linux.kernel.stable,gmane.linux.kernel,gmane.linux.ubuntu.devel.kernel.general,gmane.linux.ports.parisc,gmane.linux.kernel.metag
Subject: [PATCH 3.13 122/212] metag: Reduce maximum stack size to 256MB
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Cc: James Hogan <james.hogan@imgtec.com>, Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	linux-parisc@vger.kernel.org, linux-metag@vger.kernel.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.stable/94933>

3.13.11.4 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: James Hogan <james.hogan@imgtec.com>

commit d71f290b4e98a39f49f2595a13be3b4d5ce8e1f1 upstream.

Specify the maximum stack size for arches where the stack grows upward
(parisc and metag) in asm/processor.h rather than hard coding in
fs/exec.c so that metag can specify a smaller value of 256MB rather than
1GB.

This fixes a BUG on metag if the RLIMIT_STACK hard limit is increased
beyond a safe value by root. E.g. when starting a process after running
"ulimit -H -s unlimited" it will then attempt to use a stack size of the
maximum 1GB which is far too big for metag's limited user virtual
address space (stack_top is usually 0x3ffff000):

BUG: failure at fs/exec.c:589/shift_arg_pages()!

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Cc: linux-metag@vger.kernel.org
Cc: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/metag/include/asm/processor.h  | 2 ++
 arch/parisc/include/asm/processor.h | 2 ++
 fs/exec.c                           | 6 +++---
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index f16477d..3be8581 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -22,6 +22,8 @@
 /* Add an extra page of padding at the top of the stack for the guard page. */
 #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
 #define STACK_TOP_MAX	STACK_TOP
+/* Maximum virtual space for stack */
+#define STACK_SIZE_MAX	(1 << 28)	/* 256 MB */
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index cc2290a..c6ee865 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -53,6 +53,8 @@
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
+#define STACK_SIZE_MAX	(1 << 30)	/* 1 GB */
+
 #endif
 
 #ifndef __ASSEMBLY__
diff --git a/fs/exec.c b/fs/exec.c
index 7ea097f..5743b8f 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -655,10 +655,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	unsigned long rlim_stack;
 
 #ifdef CONFIG_STACK_GROWSUP
-	/* Limit stack size to 1GB */
+	/* Limit stack size */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;
 
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
-- 
1.9.1


From - Thu Nov 08 21:10:28 2018
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From: Jeff Liu <jeff.liu@oracle.com>
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Subject: Re: [PATCH 12/24] drivers/parisc: return actual error on pdc_stable_init
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Hi,

On 06/17/2014 22:30 PM, Jeff Liu wrote:
> From: Jie Liu <jeff.liu@oracle.com>
> 
> Return the actual error code than ENOMEM if call kset_create_and_add()
> failed at pdc_stable_init().
> 
> Cc: James E.J. Bottomley <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Signed-off-by: Jie Liu <jeff.liu@oracle.com>
>

Please ignore this patch because Greg think that is incorrect.

Cheers,
-Jeff
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index 608716f..a976a77 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -1210,7 +1210,8 @@ static struct hp_hardware hp_hardware_list[] = {
 	{HPHW_FIO, 0x004, 0x00320, 0x0, "Metheus Frame Buffer"}, 
 	{HPHW_FIO, 0x004, 0x00340, 0x0, "BARCO CX4500 VME Grphx Cnsl"}, 
 	{HPHW_FIO, 0x004, 0x00360, 0x0, "Hughes TOG VME FDDI"}, 
-	{HPHW_FIO, 0x076, 0x000AD, 0x00, "Crestone Peak RS-232"},
+	{HPHW_FIO, 0x076, 0x000AD, 0x0, "Crestone Peak Core RS-232"},
+	{HPHW_FIO, 0x077, 0x000AD, 0x0, "Crestone Peak Fast? Core RS-232"},
 	{HPHW_IOA, 0x185, 0x0000B, 0x00, "Java BC Summit Port"}, 
 	{HPHW_IOA, 0x1FF, 0x0000B, 0x00, "Hitachi Ghostview Summit Port"}, 
 	{HPHW_IOA, 0x580, 0x0000B, 0x10, "U2-IOA BC Runway Port"}, 
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] fix fanotify_mark() breakage on big endian 32bit kernel
Date: Fri, 4 Jul 2014 17:12:35 +0200
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	Heiko Carstens <heiko.carstens@de.ibm.com>,
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This patch affects big endian architectures only.

On those with 32bit userspace and 64bit kernel (CONFIG_COMPAT=y) the
64bit mask parameter is correctly constructed out of two 32bit values in
the compat_fanotify_mark() function and then passed as 64bit parameter
to the fanotify_mark() syscall.

But for the CONFIG_COMPAT=n case (32bit kernel & userspace),
compat_fanotify_mark() isn't used and the fanotify_mark syscall implementation
is used directly. In that case the upper and lower 32 bits of the 64bit mask
parameter is still swapped on big endian machines and thus leads to
fanotify_mark failing with -EINVAL.

Here is a strace of the same 32bit executable (fanotify01 testcase from LTP):

On a 64bit kernel it suceeds:
syscall_322(0, 0, 0x3, 0x3, 0x266c8, 0x1) = 0x3
syscall_323(0x3, 0x1, 0, 0x3b, 0xffffff9c, 0x266c8) = 0

On a 32bit kernel it fails:
syscall_322(0, 0, 0x3, 0x3, 0x266c8, 0x1) = 0x3
syscall_323(0x3, 0x1, 0, 0x3b, 0xffffff9c, 0x266c8) = -1 (errno 22)

Below is the easiest fix for this problem by simply swapping the upper and
lower 32bit of the 64 bit mask parameter when building a pure 32bit kernel.

But on the other side, using __u64 in a syscall API is IMHO wrong.  This may
easily break 32bit kernel builds, esp. on big endian machines.

The clean solution would probably be to use SYSCALL_DEFINE5() when
building a 64bit-kernel, and SYSCALL_DEFINE6() for fanotify_mark() when
building a pure 32bit kernel, something like this:

#ifdef CONFIG_64BIT
SYSCALL_DEFINE5(fanotify_mark, int, fanotify_fd, unsigned int, flags,
                              __u64, mask, int, dfd,
                              const char  __user *, pathname)
#else
SYSCALL_DEFINE6(fanotify_mark, int, fanotify_fd, unsigned int, flags,
                                __u32, mask0, __u32, mask1, int, dfd,
                                const char  __user *, pathname)
#endif


Signed-off-by: Helge Deller <deller@gmx.de>
To: Eric Paris <eparis@redhat.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>


diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 3fdc8a3..374261c 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -787,6 +787,10 @@ SYSCALL_DEFINE5(fanotify_mark, int, fanotify_fd, unsigned int, flags,
 	struct path path;
 	int ret;
 
+#if defined(__BIG_ENDIAN) && !defined(CONFIG_64BIT)
+	mask = (mask << 32) | (mask >> 32);
+#endif
+
 	pr_debug("%s: fanotify_fd=%d flags=%x dfd=%d pathname=%p mask=%llx\n",
 		 __func__, fanotify_fd, flags, dfd, pathname, mask);
 
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From - Thu Nov 08 21:10:29 2018
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From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] fix fanotify_mark() breakage on big endian 32bit kernel
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To: Helge Deller <deller@gmx.de>
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On 04.07.2014 17:12, Helge Deller wrote:
> This patch affects big endian architectures only.
>
> On those with 32bit userspace and 64bit kernel (CONFIG_COMPAT=y) the
> 64bit mask parameter is correctly constructed out of two 32bit values in
> the compat_fanotify_mark() function and then passed as 64bit parameter
> to the fanotify_mark() syscall.
>
> But for the CONFIG_COMPAT=n case (32bit kernel & userspace),
> compat_fanotify_mark() isn't used and the fanotify_mark syscall implementation

I was not able to find a symbol compat_fanotify_mark. Could you, please, 
indicate were this coding is.

> is used directly. In that case the upper and lower 32 bits of the 64bit mask
> parameter is still swapped on big endian machines and thus leads to
> fanotify_mark failing with -EINVAL.
>
> Here is a strace of the same 32bit executable (fanotify01 testcase from LTP):

https://github.com/linux-test-project/ltp
testcases/kernel/syscalls/fanotify/fanotify01.c
I guess.

>
> On a 64bit kernel it suceeds:
> syscall_322(0, 0, 0x3, 0x3, 0x266c8, 0x1) = 0x3
> syscall_323(0x3, 0x1, 0, 0x3b, 0xffffff9c, 0x266c8) = 0
>
> On a 32bit kernel it fails:
> syscall_322(0, 0, 0x3, 0x3, 0x266c8, 0x1) = 0x3
> syscall_323(0x3, 0x1, 0, 0x3b, 0xffffff9c, 0x266c8) = -1 (errno 22)

The syscall numbers are architecture specific.
Which architecture did you test on?

>
> Below is the easiest fix for this problem by simply swapping the upper and
> lower 32bit of the 64 bit mask parameter when building a pure 32bit kernel.

The problem you report is architecture specific.
Is fanotify_user.c really the right place for the correction?
Or should the fix be in the "arch" directory?

Best regards

Heinrich Schuchardt

>
> But on the other side, using __u64 in a syscall API is IMHO wrong.  This may
> easily break 32bit kernel builds, esp. on big endian machines.
>
> The clean solution would probably be to use SYSCALL_DEFINE5() when
> building a 64bit-kernel, and SYSCALL_DEFINE6() for fanotify_mark() when
> building a pure 32bit kernel, something like this:
>
> #ifdef CONFIG_64BIT
> SYSCALL_DEFINE5(fanotify_mark, int, fanotify_fd, unsigned int, flags,
>                                __u64, mask, int, dfd,
>                                const char  __user *, pathname)
> #else
> SYSCALL_DEFINE6(fanotify_mark, int, fanotify_fd, unsigned int, flags,
>                                  __u32, mask0, __u32, mask1, int, dfd,
>                                  const char  __user *, pathname)
> #endif
>
>
> Signed-off-by: Helge Deller <deller@gmx.de>
> To: Eric Paris <eparis@redhat.com>
> Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
>
>
> diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
> index 3fdc8a3..374261c 100644
> --- a/fs/notify/fanotify/fanotify_user.c
> +++ b/fs/notify/fanotify/fanotify_user.c
> @@ -787,6 +787,10 @@ SYSCALL_DEFINE5(fanotify_mark, int, fanotify_fd, unsigned int, flags,
>   	struct path path;
>   	int ret;
>
> +#if defined(__BIG_ENDIAN) && !defined(CONFIG_64BIT)
> +	mask = (mask << 32) | (mask >> 32);
> +#endif
> +
>   	pr_debug("%s: fanotify_fd=%d flags=%x dfd=%d pathname=%p mask=%llx\n",
>   		 __func__, fanotify_fd, flags, dfd, pathname, mask);
>
>

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From - Thu Nov 08 21:10:29 2018
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Subject: Re: [PATCH] fix fanotify_mark() breakage on big endian 32bit kernel
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Hi Heinrich,

On 07/04/2014 06:48 PM, Heinrich Schuchardt wrote:
> On 04.07.2014 17:12, Helge Deller wrote:
>> This patch affects big endian architectures only.
>>
>> On those with 32bit userspace and 64bit kernel (CONFIG_COMPAT=y) the
>> 64bit mask parameter is correctly constructed out of two 32bit values in
>> the compat_fanotify_mark() function and then passed as 64bit parameter
>> to the fanotify_mark() syscall.
>>
>> But for the CONFIG_COMPAT=n case (32bit kernel & userspace),
>> compat_fanotify_mark() isn't used and the fanotify_mark syscall implementation
> 
> I was not able to find a symbol compat_fanotify_mark. Could you, please, indicate were this coding is.

fs/notify/fanotify/fanotify_user.c around line 892:
#ifdef CONFIG_COMPAT
COMPAT_SYSCALL_DEFINE6(fanotify_mark,
                                int, fanotify_fd, unsigned int, flags,
                                __u32, mask0, __u32, mask1, int, dfd,
                                const char  __user *, pathname)

>> is used directly. In that case the upper and lower 32 bits of the 64bit mask
>> parameter is still swapped on big endian machines and thus leads to
>> fanotify_mark failing with -EINVAL.
>>
>> Here is a strace of the same 32bit executable (fanotify01 testcase from LTP):
> 
> https://github.com/linux-test-project/ltp
> testcases/kernel/syscalls/fanotify/fanotify01.c
> I guess.

Yes.

>> On a 64bit kernel it suceeds:
>> syscall_322(0, 0, 0x3, 0x3, 0x266c8, 0x1) = 0x3
>> syscall_323(0x3, 0x1, 0, 0x3b, 0xffffff9c, 0x266c8) = 0
>>
>> On a 32bit kernel it fails:
>> syscall_322(0, 0, 0x3, 0x3, 0x266c8, 0x1) = 0x3
>> syscall_323(0x3, 0x1, 0, 0x3b, 0xffffff9c, 0x266c8) = -1 (errno 22)
> 
> The syscall numbers are architecture specific.
> Which architecture did you test on?

Yes, the numbers are architecture specifc.
I tested on HP-PARISC (parisc arch) with 32- and 64bit kernel.

>> Below is the easiest fix for this problem by simply swapping the upper and
>> lower 32bit of the 64 bit mask parameter when building a pure 32bit kernel.
> 
> The problem you report is architecture specific.

It affects all *big endian* architectures (parisc, s390, ppc, ...)
So, if people could test it with a 32bit kernel on those other architectures
it would be nice.

> Is fanotify_user.c really the right place for the correction?
> Or should the fix be in the "arch" directory?

I don't think the fix should go in the arch architectures, because
then you have to modify it for each big endian arch.

>> But on the other side, using __u64 in a syscall API is IMHO wrong.  This may
>> easily break 32bit kernel builds, esp. on big endian machines.
>>
>> The clean solution would probably be to use SYSCALL_DEFINE5() when
>> building a 64bit-kernel, and SYSCALL_DEFINE6() for fanotify_mark() when
>> building a pure 32bit kernel, something like this:

Again, I think using __u64 as type for a generic syscall is wrong, esp.
if the same code is compiled for 32- and 64bit. 
This is my (uncomplete!) suggestion, but it would add many more lines and 
makes reading the code more complicated.

>> #ifdef CONFIG_64BIT
>> SYSCALL_DEFINE5(fanotify_mark, int, fanotify_fd, unsigned int, flags,
>>                                __u64, mask, int, dfd,
>>                                const char  __user *, pathname)
>> #else
>> SYSCALL_DEFINE6(fanotify_mark, int, fanotify_fd, unsigned int, flags,
>>                                  __u32, mask0, __u32, mask1, int, dfd,
>>                                  const char  __user *, pathname)
>> #endif
>>
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>> To: Eric Paris <eparis@redhat.com>
>> Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
>> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
>>
>>
>> diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
>> index 3fdc8a3..374261c 100644
>> --- a/fs/notify/fanotify/fanotify_user.c
>> +++ b/fs/notify/fanotify/fanotify_user.c
>> @@ -787,6 +787,10 @@ SYSCALL_DEFINE5(fanotify_mark, int, fanotify_fd, unsigned int, flags,
>>       struct path path;
>>       int ret;
>>
>> +#if defined(__BIG_ENDIAN) && !defined(CONFIG_64BIT)
>> +    mask = (mask << 32) | (mask >> 32);
>> +#endif
>> +
>>       pr_debug("%s: fanotify_fd=%d flags=%x dfd=%d pathname=%p mask=%llx\n",
>>            __func__, fanotify_fd, flags, dfd, pathname, mask);
>>

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This removes the sizeof(frame) from the call to get_sigframe on line
243 in order to fix the call to this function as the sizeof in not
needed to call this function.

Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
---
 arch/parisc/kernel/signal.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 1cba8f2..3b7caac 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -240,8 +240,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #endif
 	
 	usp = (regs->gr[30] & ~(0x01UL));
-	/*FIXME: frame_size parameter is unused, remove it. */
-	frame = get_sigframe(ka, usp, sizeof(*frame));
+	frame = get_sigframe(ka, usp)
 
 	DBG(1,"SETUP_RT_FRAME: START\n");
 	DBG(1,"setup_rt_frame: frame %p info %p\n", frame, info);
-- 
1.9.1

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From: Nick Krause <xerofoify@gmail.com>
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Subject: signal.c : FIX ME on line 273
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There seems to be a FIX Me message on line 273. I was wondering my
what you mean convert for the compact case.
Cheers Nick
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On Fri, 2014-07-04 at 23:20 -0400, Nicholas Krause wrote:
> This removes the sizeof(frame) from the call to get_sigframe on line
> 243 in order to fix the call to this function as the sizeof in not
> needed to call this function.

How did you compile this?

arch/parisc/kernel/signal.c:178:get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)

> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
[]
> @@ -240,8 +240,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
[]
> -	/*FIXME: frame_size parameter is unused, remove it. */
> -	frame = get_sigframe(ka, usp, sizeof(*frame));
> +	frame = get_sigframe(ka, usp)

Nichola


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I didn't compile check it seems to be a valid line after reading this.
I will resend a new patch removing the FIX ME line.
Sorry Nick

On Fri, Jul 4, 2014 at 11:58 PM, Joe Perches <joe@perches.com> wrote:
> On Fri, 2014-07-04 at 23:20 -0400, Nicholas Krause wrote:
>> This removes the sizeof(frame) from the call to get_sigframe on line
>> 243 in order to fix the call to this function as the sizeof in not
>> needed to call this function.
>
> How did you compile this?
>
> arch/parisc/kernel/signal.c:178:get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
>
>> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
> []
>> @@ -240,8 +240,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
> []
>> -     /*FIXME: frame_size parameter is unused, remove it. */
>> -     frame = get_sigframe(ka, usp, sizeof(*frame));
>> +     frame = get_sigframe(ka, usp)
>
> Nichola
>
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This frame removes a fix me line in signal.c that is no longer
needed as function call is correct.

Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
---
 arch/parisc/kernel/signal.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 1cba8f2..1d550b5 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -240,7 +240,6 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #endif
 	
 	usp = (regs->gr[30] & ~(0x01UL));
-	/*FIXME: frame_size parameter is unused, remove it. */
 	frame = get_sigframe(ka, usp, sizeof(*frame));
 
 	DBG(1,"SETUP_RT_FRAME: START\n");
-- 
1.9.1


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Subject: Re: [PATCH] fix fanotify_mark() breakage on big endian 32bit kernel
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On Fri, Jul 04, 2014 at 05:12:35PM +0200, Helge Deller wrote:
> This patch affects big endian architectures only.
> 
> On those with 32bit userspace and 64bit kernel (CONFIG_COMPAT=y) the
> 64bit mask parameter is correctly constructed out of two 32bit values in
> the compat_fanotify_mark() function and then passed as 64bit parameter
> to the fanotify_mark() syscall.
> 
> But for the CONFIG_COMPAT=n case (32bit kernel & userspace),
> compat_fanotify_mark() isn't used and the fanotify_mark syscall implementation
> is used directly. In that case the upper and lower 32 bits of the 64bit mask
> parameter is still swapped on big endian machines and thus leads to
> fanotify_mark failing with -EINVAL.

Why do you think upper and lower 32 bits are swapped on big endian machines?
At least an s390 the C ABI defines that 64 bit values are split into an
even odd register pair, where the most significant bits are in the even numbered
register.

So for sys_fanotify_mark everything is fine on s390, and probably most other
architectures as well. Having a 64 bit syscall parameter indeed does work,
if all the architecture specific details have been correctly considered.

> Here is a strace of the same 32bit executable (fanotify01 testcase from LTP):
> 
> On a 64bit kernel it suceeds:
> syscall_322(0, 0, 0x3, 0x3, 0x266c8, 0x1) = 0x3
> syscall_323(0x3, 0x1, 0, 0x3b, 0xffffff9c, 0x266c8) = 0
> 
> On a 32bit kernel it fails:
> syscall_322(0, 0, 0x3, 0x3, 0x266c8, 0x1) = 0x3
> syscall_323(0x3, 0x1, 0, 0x3b, 0xffffff9c, 0x266c8) = -1 (errno 22)

So "0" and "0x3b" together should be the 64 bit "0x3b" mask, this looks just
fine.

> diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
> index 3fdc8a3..374261c 100644
> --- a/fs/notify/fanotify/fanotify_user.c
> +++ b/fs/notify/fanotify/fanotify_user.c
> @@ -787,6 +787,10 @@ SYSCALL_DEFINE5(fanotify_mark, int, fanotify_fd, unsigned int, flags,
>  	struct path path;
>  	int ret;
> 
> +#if defined(__BIG_ENDIAN) && !defined(CONFIG_64BIT)
> +	mask = (mask << 32) | (mask >> 32);
> +#endif
> +
>  	pr_debug("%s: fanotify_fd=%d flags=%x dfd=%d pathname=%p mask=%llx\n",
>  		 __func__, fanotify_fd, flags, dfd, pathname, mask);

Did you activate this pr_debug()? I'm really wondering what the output looks
like on your machine.

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Subject: Re: [PATCH] fix fanotify_mark() breakage on big endian 32bit kernel
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On 6-Jul-14, at 5:15 AM, Heiko Carstens wrote:

>> But for the CONFIG_COMPAT=n case (32bit kernel & userspace),
>> compat_fanotify_mark() isn't used and the fanotify_mark syscall  
>> implementation
>> is used directly. In that case the upper and lower 32 bits of the  
>> 64bit mask
>> parameter is still swapped on big endian machines and thus leads to
>> fanotify_mark failing with -EINVAL.
>
> Why do you think upper and lower 32 bits are swapped on big endian  
> machines?
> At least an s390 the C ABI defines that 64 bit values are split into  
> an
> even odd register pair, where the most significant bits are in the  
> even numbered
> register.


On hppa, there is no specific rule as to which registers are used to  
hold 64-bit integer values
on 32-bit machines except for the first two call arguments which are  
passed in registers.
For example, r25 and r26 contain the first argument and the most  
significant bits are in r25
and the least significant bits in r26..

In GCC, we typically have an odd even register pair to hold 64-bit  
values as register
r0 is not usable.

The rules are different for float values.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:10:30 2018
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From: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: Remove sizeof(frame) from call to get_sigframe
Date: Mon, 7 Jul 2014 13:55:54 +0100
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To: Nicholas Krause <xerofoify@gmail.com>
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On Fri,  4 Jul 2014 23:20:57 -0400
Nicholas Krause <xerofoify@gmail.com> wrote:

> This removes the sizeof(frame) from the call to get_sigframe on line
> 243 in order to fix the call to this function as the sizeof in not
> needed to call this function.

If you are going to submit patches then

- actually read what you are submitting

- check it actually compiles

- run it on the system in question and verify your changed code paths are
  used

*then* consider submitting it, otherwise all you are doing is wasting
people's time.

Alan
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On Mon, 7 Jul 2014, One Thousand Gnomes wrote:

> > This removes the sizeof(frame) from the call to get_sigframe on line
> > 243 in order to fix the call to this function as the sizeof in not
> > needed to call this function.
> 
> If you are going to submit patches then
> 
> - actually read what you are submitting
> 
> - check it actually compiles
> 
> - run it on the system in question and verify your changed code paths are
>   used
> 
> *then* consider submitting it, otherwise all you are doing is wasting
> people's time.

Seconded. Nicholas, this is a third time I've seen patch from you in my 
mailbox that didn't make any sense whatsoever. Please be more careful, 
once certain reputation is gained, it's very difficult to escape it.

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Subject: Aw: Re: [PATCH] fix fanotify_mark() breakage on big endian 32bit
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Hi Heiko,

> On Fri, Jul 04, 2014 at 05:12:35PM +0200, Helge Deller wrote:
> > This patch affects big endian architectures only.
> > 
> > On those with 32bit userspace and 64bit kernel (CONFIG_COMPAT=y) the
> > 64bit mask parameter is correctly constructed out of two 32bit values in
> > the compat_fanotify_mark() function and then passed as 64bit parameter
> > to the fanotify_mark() syscall.
> > 
> > But for the CONFIG_COMPAT=n case (32bit kernel & userspace),
> > compat_fanotify_mark() isn't used and the fanotify_mark syscall implementation
> > is used directly. In that case the upper and lower 32 bits of the 64bit mask
> > parameter is still swapped on big endian machines and thus leads to
> > fanotify_mark failing with -EINVAL.
> 
> Why do you think upper and lower 32 bits are swapped on big endian machines?

I assumed it, because I see this behaviour on parisc, and because of this commit
from you regarding the compat-case. I do recognize, that in this patch the u64 value
is constructed out of the two 32bit values to hand it over. So, this patch is OK.

commit 592f6b842f64e416c7598a1b97c649b34241e22d
Author: Heiko Carstens <heiko.carstens@de.ibm.com>
Date:   Mon Jan 27 17:07:19 2014 -0800

    compat: fix sys_fanotify_mark
    
    Commit 91c2e0bcae72 ("unify compat fanotify_mark(2), switch to
    COMPAT_SYSCALL_DEFINE") added a new unified compat fanotify_mark syscall
    to be used by all architectures.
    
    Unfortunately the unified version merges the split mask parameter in a
    wrong way: the lower and higher word got swapped.
    
    This was discovered with glibc's tst-fanotify test case.


> > Here is a strace of the same 32bit executable (fanotify01 testcase from LTP):
> > 
> > On a 64bit kernel it suceeds:
> > syscall_322(0, 0, 0x3, 0x3, 0x266c8, 0x1) = 0x3
> > syscall_323(0x3, 0x1, 0, 0x3b, 0xffffff9c, 0x266c8) = 0
> > 
> > On a 32bit kernel it fails:
> > syscall_322(0, 0, 0x3, 0x3, 0x266c8, 0x1) = 0x3
> > syscall_323(0x3, 0x1, 0, 0x3b, 0xffffff9c, 0x266c8) = -1 (errno 22)
> 
> So "0" and "0x3b" together should be the 64 bit "0x3b" mask, this looks just
> fine.
> 
> > diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
> > index 3fdc8a3..374261c 100644
> > --- a/fs/notify/fanotify/fanotify_user.c
> > +++ b/fs/notify/fanotify/fanotify_user.c
> > @@ -787,6 +787,10 @@ SYSCALL_DEFINE5(fanotify_mark, int, fanotify_fd, unsigned int, flags,
> >  	struct path path;
> >  	int ret;
> > 
> > +#if defined(__BIG_ENDIAN) && !defined(CONFIG_64BIT)
> > +	mask = (mask << 32) | (mask >> 32);
> > +#endif
> > +
> >  	pr_debug("%s: fanotify_fd=%d flags=%x dfd=%d pathname=%p mask=%llx\n",
> >  		 __func__, fanotify_fd, flags, dfd, pathname, mask);
> 
> Did you activate this pr_debug()? I'm really wondering what the output looks
> like on your machine.

Just tested it.
On 3.16.0-rc4-32bit (without my patch)
syscall_323(0x3, 0x1, 0, 0x3b, 0xffffff9c, 0x266c8) = -1 (errno 22)
gives:
SYSC_fanotify_mark: fanotify_fd=3 flags=1 dfd=-100 pathname=000266c8 mask=3b00000000

and on 3.16.0-rc4-32bit+ (*with* my patch, same executable file):
syscall_323(0x3, 0x1, 0, 0x3b, 0xffffff9c, 0x266c8) = 0
gives:
SYSC_fanotify_mark: fanotify_fd=3 flags=1 dfd=-100 pathname=000266c8 mask=3b

So, my patch works as expected.

The Linux Test Project (LTP) uses in testcases/kernel/syscalls/fanotify/fanotify.h this coding, which is IMHO 
correct as it would break your commit 592f6b842f64e416c7598a1b97c649b34241e22d otherwise:
long myfanotify_mark(int fd, unsigned int flags, uint64_t mask,
                     int dfd, const char *pathname)
{
#if LTP_USE_64_ABI
        return ltp_syscall(__NR_fanotify_mark, fd, flags, mask, dfd, pathname);
#else
        return ltp_syscall(__NR_fanotify_mark, fd, flags,
                         __LONG_LONG_PAIR((unsigned long) (mask >> 32),
                                          (unsigned long) mask),
                         dfd, (unsigned long) pathname);
#endif
}

with __LONG_LONG_PAIR() defined in /usr/include/endian.h:
#if __BYTE_ORDER == __LITTLE_ENDIAN
# define __LONG_LONG_PAIR(HI, LO) LO, HI
#elif __BYTE_ORDER == __BIG_ENDIAN
# define __LONG_LONG_PAIR(HI, LO) HI, LO
#endif

and in glibc sysdeps/unix/sysv/linux/sys/fanotify.h I see:
extern int fanotify_mark (int __fanotify_fd, unsigned int __flags, uint64_t __mask, int __dfd, const char *__pathname);
with
sysdeps/unix/sysv/linux/s390/s390-32/syscalls.list:fanotify_mark        EXTRA   fanotify_mark   i:iiiiis        fanotify_mark


> At least an s390 the C ABI defines that 64 bit values are split into an
> even odd register pair, where the most significant bits are in the even numbered
> register.

and Dave wrote for hppa:
> In GCC, we typically have an odd even register pair to hold 64-bit
> values as register r0 is not usable.

This seems different.

> So for sys_fanotify_mark everything is fine on s390, and probably most other
> architectures as well. Having a 64 bit syscall parameter indeed does work,
> if all the architecture specific details have been correctly considered.

I think this is the problem!
For parisc the architecture specifc details have not been considered correctly.
I tried this test:

static int low32, high32;
SYSCALL_DEFINE5(fanotify_mark_test, int, fanotify_fd, unsigned int, flags,
                   __u64, mask, int, dfd, const char  __user *, pathname)
{
        low32 = (int) mask;
        high32 = (int) (mask >> 32);
}

and got:

        .section        .text.SyS_fanotify_mark_test,"ax",@progbits
        .align 4
.globl SyS_fanotify_mark_test
        .type   SyS_fanotify_mark_test, @function
SyS_fanotify_mark_test:
        .PROC
        .CALLINFO FRAME=64,NO_CALLS,SAVE_SP,ENTRY_GR=3
        .ENTRY
        copy %r3,%r1
        copy %r30,%r3
        stwm %r1,64(%r30)
        addil LR'low32-$global$,%r27
        ldi 0,%r28
        stw %r24,RR'low32-$global$(%r1)
        addil LR'high32-$global$,%r27
        stw %r23,RR'high32-$global$(%r1)
        ldo 64(%r3),%r30
        bv %r0(%r2)
        ldwm -64(%r30),%r3
        .EXIT
        .PROCEND

So on hppa r26 is fanotify_fd, %r25 is flags, %r24/%r23 is lower/higher 32bits of mask.
For the mask parameter this is different to what the __LONG_LONG_PAIR() marcro
would hand over to the syscall (which would be %r24/%r23 as higher/lower 32bits).

So, the problem is the usage of __u64 in the 32bit API. It has to be handled architecture-specific.
It seems to work for little-endian machines, and probably (by luck?!?) for s390, but I'm not sure if
it maybe breaks (like on parisc) on other arches, e.g. what about sparc?

For parisc I can work around that problem in the architecture-specifc coding, but I still
think using __64 here is wrong and just may lead to such bugs.

Helge
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Subject: Re: Re: [PATCH] fix fanotify_mark() breakage on big endian 32bit
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On Mon, Jul 07, 2014 at 03:54:37PM +0200, Helge Deller wrote:
> Hi Heiko,
> > So for sys_fanotify_mark everything is fine on s390, and probably most other
> > architectures as well. Having a 64 bit syscall parameter indeed does work,
> > if all the architecture specific details have been correctly considered.
> 
> I think this is the problem!
[...]
> So on hppa r26 is fanotify_fd, %r25 is flags, %r24/%r23 is lower/higher 32bits of mask.
> For the mask parameter this is different to what the __LONG_LONG_PAIR() marcro
> would hand over to the syscall (which would be %r24/%r23 as higher/lower 32bits).
> 
> So, the problem is the usage of __u64 in the 32bit API. It has to be handled architecture-specific.
> It seems to work for little-endian machines, and probably (by luck?!?) for s390, but I'm not sure if
> it maybe breaks (like on parisc) on other arches, e.g. what about sparc?

No, it's not luck that it works on s390. Whenever we add a new entry to
our system call table, we make sure that 64 bit parameters, if present,
work on s390.
Otherwise we add s390 specific system calls like e.g. sys_s390_fallocate.

> For parisc I can work around that problem in the architecture-specifc coding, but I still
> think using __64 here is wrong and just may lead to such bugs.

There have always been problems with 64 bit system call parameters on 32 bit
architectures. See for example this thread:
http://oss.sgi.com/archives/xfs/2007-03/msg00557.html

David Woodhouse wrote summed up the system call ABI of a couple of
architectures a couple of years ago:
http://marc.info/?l=linux-arch&m=118277150812137&w=2

And there was also a system call howto from Ulrich Drepper:
http://copilotco.com/mail-archives/linux-kernel.2007/msg27844.html

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.stable
Subject: [STABLE][PATCH] parisc,metag: Do not hardcode maximum userspace
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Dear stable kernel team,

Can you please consider adding this patch to stable kernel 3.14 ?

It's upstream commit 042d27acb64924a0e8a43e972485913a32407beb with a minor
trivial cleanup in mm/Kconfig so that it applies cleanly to 3.14.

Without this patch, we always use 1 GB stack on hppa which hurts us on 32bit
userspace. This patch changes it to use 80 MB by default on hppa and metag.

Thanks,
Helge


Author: Helge Deller <deller@gmx.de>
Date:   Wed Apr 30 23:26:02 2014 +0200

parisc,metag: Do not hardcode maximum userspace stack size

(based on upstream commit 042d27acb64924a0e8a43e972485913a32407beb)

This patch affects only architectures where the stack grows upwards
(currently parisc and metag only). On those do not hardcode the maximum
initial stack size to 1GB for 32-bit processes, but make it configurable
via a config option.

The main problem with the hardcoded stack size is, that we have two
memory regions which grow upwards: stack and heap. To keep most of the
memory available for heap in a flexmap memory layout, it makes no sense
to hard allocate up to 1GB of the memory for stack which can't be used
as heap then.

This patch makes the stack size for 32-bit processes configurable and
uses 80MB as default value which has been in use during the last few
years on parisc and which hasn't showed any problems yet.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Cc: linux-metag@vger.kernel.org
Cc: John David Anglin <dave.anglin@bell.net>

diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index 3be8581..a8a3747 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -23,7 +23,7 @@
 #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
 #define STACK_TOP_MAX	STACK_TOP
 /* Maximum virtual space for stack */
-#define STACK_SIZE_MAX	(1 << 28)	/* 256 MB */
+#define STACK_SIZE_MAX	(CONFIG_MAX_STACK_SIZE_MB*1024*1024)
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 86522ef..d951c96 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -55,7 +55,10 @@
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
-#define STACK_SIZE_MAX	(1 << 30)	/* 1 GB */
+/* Allow bigger stacks for 64-bit processes */
+#define STACK_SIZE_MAX	(USER_WIDE_MODE					\
+			 ? (1 << 30)	/* 1 GB */			\
+			 : (CONFIG_MAX_STACK_SIZE_MB*1024*1024))
 
 #endif
 
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 31ffa9b..e1ffea2 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -72,10 +72,10 @@ static unsigned long mmap_upper_limit(void)
 {
 	unsigned long stack_base;
 
-	/* Limit stack size to 1GB - see setup_arg_pages() in fs/exec.c */
+	/* Limit stack size - see setup_arg_pages() in fs/exec.c */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;
 
 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }
diff --git a/mm/Kconfig b/mm/Kconfig
index 9b63c15..0862816 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -580,3 +580,18 @@ config PGTABLE_MAPPING
 
 	  You can check speed with zsmalloc benchmark:
 	  https://github.com/spartacus06/zsmapbench
+
+config MAX_STACK_SIZE_MB
+	int "Maximum user stack size for 32-bit processes (MB)"
+	default 80
+	range 8 256 if METAG
+	range 8 2048
+	depends on STACK_GROWSUP && (!64BIT || COMPAT)
+	help
+	  This is the maximum stack size in Megabytes in the VM layout of 32-bit
+	  user processes when the stack grows upwards (currently only on parisc
+	  and metag arch). The stack will be located at the highest memory
+	  address minus the given value, unless the RLIMIT_STACK hard limit is
+	  changed to a smaller value in which case that is used.
+
+	  A sane initial value is 80 MB.
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix fanotify_mark() syscall on 32bit compat kernel
Date: Thu, 10 Jul 2014 18:07:17 +0200
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On parisc we can not use the existing compat implementation for fanotify_mark()
because for the 64bit mask parameter the higher and lower 32bits are ordered
differently than what the compat function expects from big endian
architectures.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index bb9f3b6..93c1963 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -4,6 +4,7 @@
  * Copyright (C) 2000-2001 Hewlett Packard Company
  * Copyright (C) 2000 John Marvin
  * Copyright (C) 2001 Matthew Wilcox
+ * Copyright (C) 2014 Helge Deller <deller@gmx.de>
  *
  * These routines maintain argument size conversion between 32bit and 64bit
  * environment. Based heavily on sys_ia32.c and sys_sparc32.c.
@@ -57,3 +22,12 @@ asmlinkage long sys32_unimplemented(int r26, int r25, int r24, int r23,
     	current->comm, current->pid, r20);
     return -ENOSYS;
 }
+
+asmlinkage long sys32_fanotify_mark(compat_int_t fanotify_fd, compat_uint_t flags,
+	compat_uint_t mask0, compat_uint_t mask1, compat_int_t dfd,
+	const char  __user * pathname)
+{
+	return sys_fanotify_mark(fanotify_fd, flags,
+			((__u64)mask1 << 32) | mask0,
+			 dfd, pathname);
+}
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index c5fa7a6..84c5d3a 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -418,7 +418,7 @@
 	ENTRY_SAME(accept4)		/* 320 */
 	ENTRY_SAME(prlimit64)
 	ENTRY_SAME(fanotify_init)
-	ENTRY_COMP(fanotify_mark)
+	ENTRY_DIFF(fanotify_mark)
 	ENTRY_COMP(clock_adjtime)
 	ENTRY_SAME(name_to_handle_at)	/* 325 */
 	ENTRY_COMP(open_by_handle_at)
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: drop unused defines and header includes
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index bb9f3b6..93c1963 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -11,44 +12,8 @@
 
 #include <linux/compat.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h> 
-#include <linux/mm.h> 
-#include <linux/file.h> 
-#include <linux/signal.h>
-#include <linux/resource.h>
-#include <linux/times.h>
-#include <linux/time.h>
-#include <linux/smp.h>
-#include <linux/sem.h>
-#include <linux/shm.h>
-#include <linux/slab.h>
-#include <linux/uio.h>
-#include <linux/ncp_fs.h>
-#include <linux/poll.h>
-#include <linux/personality.h>
-#include <linux/stat.h>
-#include <linux/highmem.h>
-#include <linux/highuid.h>
-#include <linux/mman.h>
-#include <linux/binfmts.h>
-#include <linux/namei.h>
-#include <linux/vfs.h>
-#include <linux/ptrace.h>
-#include <linux/swap.h>
 #include <linux/syscalls.h>
 
-#include <asm/types.h>
-#include <asm/uaccess.h>
-#include <asm/mmu_context.h>
-
-#undef DEBUG

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Subject: Re: [PATCH] fix fanotify_mark() breakage on big endian 32bit kernel
 [SOLVED]
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Cc: Eric Paris <eparis@redhat.com>,
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	linux-parisc@vger.kernel.org,
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On 07/07/2014 05:28 PM, Heiko Carstens wrote:
> On Mon, Jul 07, 2014 at 03:54:37PM +0200, Helge Deller wrote:
>> Hi Heiko,
>>> So for sys_fanotify_mark everything is fine on s390, and probably most other
>>> architectures as well. Having a 64 bit syscall parameter indeed does work,
>>> if all the architecture specific details have been correctly considered.
>>
>> I think this is the problem!
> [...]
>> So on hppa r26 is fanotify_fd, %r25 is flags, %r24/%r23 is lower/higher 32bits of mask.
>> For the mask parameter this is different to what the __LONG_LONG_PAIR() marcro
>> would hand over to the syscall (which would be %r24/%r23 as higher/lower 32bits).
>>
>> So, the problem is the usage of __u64 in the 32bit API. It has to be handled architecture-specific.
>> It seems to work for little-endian machines, and probably (by luck?!?) for s390, but I'm not sure if
>> it maybe breaks (like on parisc) on other arches, e.g. what about sparc?
> 
> No, it's not luck that it works on s390. Whenever we add a new entry to
> our system call table, we make sure that 64 bit parameters, if present,
> work on s390.
> Otherwise we add s390 specific system calls like e.g. sys_s390_fallocate.
> 
>> For parisc I can work around that problem in the architecture-specifc coding, but I still
>> think using __64 here is wrong and just may lead to such bugs.
> 
> There have always been problems with 64 bit system call parameters on 32 bit
> architectures. See for example this thread:
> http://oss.sgi.com/archives/xfs/2007-03/msg00557.html
> 
> David Woodhouse wrote summed up the system call ABI of a couple of
> architectures a couple of years ago:
> http://marc.info/?l=linux-arch&m=118277150812137&w=2
> 
> And there was also a system call howto from Ulrich Drepper:
> http://copilotco.com/mail-archives/linux-kernel.2007/msg27844.html

It finally turned out, that on hppa we end up with different assignments of parameters to kernel arguments depending on if we call the glibc wrapper function
int fanotify_mark (int __fanotify_fd, unsigned int __flags, uint64_t __mask, int __dfd, const char *__pathname);
or directly calling the syscall manually
syscall(__NR_fanotify_mark, ...)

Reason is, that the syscall() function is implemented as C-function and because we now have the sysno as first parameter in front of the other parameters the compiler will unexpectedly add an empty paramenter in front of the u64 value to ensure the correct calling alignment for 64bit values.
This means, on hppa you can't simply use syscall() to call the kernel fanotify_mark() function directly, but you have to use the glibc function instead.

I'll push this patch through the parisc-linux git tree:
https://patchwork.kernel.org/patch/4524561/
which fixes the kernel in the hppa-arch specifc coding to adjust the parameters in a way as if userspace calls the glibc wrapper function fanotify_mark().

So, please ignore my previous patches in this thread.

Thanks!
Helge
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Hi Linus,

please pull the latest parisc architecture fixes for kernel 3.16 from 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.16-5

The major patch in here is one which fixes the fanotify_mark() syscall in the
compat layer of the 64bit parisc kernel. It went unnoticed so long, because the
calling syntax when using a 64bit parameter in a 32bit syscall is quite complex
and even worse, it may be even different if you call syscall() or the glibc
wrapper. This patch makes the kernel accept the calling convention when called
by the glibc wrapper.

The other two patches are trivial and remove unused headers, #includes and adds
the serial ports of the fastest C8000 workstation to the parisc-kernel internal
hardware database.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (3):
      parisc: add serial ports of C8000/1GHz machine to hardware database
      parisc: fix fanotify_mark() syscall on 32bit compat kernel
      parisc: drop unused defines and header includes

 arch/parisc/kernel/hardware.c      |  3 ++-
 arch/parisc/kernel/sys_parisc32.c  | 46 +++++++++-----------------------------
 arch/parisc/kernel/syscall_table.S |  2 +-
 3 files changed, 13 insertions(+), 38 deletions(-)
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From - Thu Nov 08 21:10:31 2018
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Subject: [PATCH 3.14 08/66] parisc,metag: Do not hardcode maximum userspace stack size
Date: Tue, 15 Jul 2014 16:17:02 -0700
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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	James Hogan <james.hogan@imgtec.com>,
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	John David Anglin <dave.anglin@bell.net>
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3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Helge Deller <deller@gmx.de>

commit 042d27acb64924a0e8a43e972485913a32407beb upstream.

This patch affects only architectures where the stack grows upwards
(currently parisc and metag only). On those do not hardcode the maximum
initial stack size to 1GB for 32-bit processes, but make it configurable
via a config option.

The main problem with the hardcoded stack size is, that we have two
memory regions which grow upwards: stack and heap. To keep most of the
memory available for heap in a flexmap memory layout, it makes no sense
to hard allocate up to 1GB of the memory for stack which can't be used
as heap then.

This patch makes the stack size for 32-bit processes configurable and
uses 80MB as default value which has been in use during the last few
years on parisc and which hasn't showed any problems yet.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Cc: linux-metag@vger.kernel.org
Cc: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/metag/include/asm/processor.h  |    2 +-
 arch/parisc/include/asm/processor.h |    5 ++++-
 arch/parisc/kernel/sys_parisc.c     |    6 +++---
 mm/Kconfig                          |   15 +++++++++++++++
 4 files changed, 23 insertions(+), 5 deletions(-)

--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -23,7 +23,7 @@
 #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
 #define STACK_TOP_MAX	STACK_TOP
 /* Maximum virtual space for stack */
-#define STACK_SIZE_MAX	(1 << 28)	/* 256 MB */
+#define STACK_SIZE_MAX	(CONFIG_MAX_STACK_SIZE_MB*1024*1024)
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -55,7 +55,10 @@
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
-#define STACK_SIZE_MAX	(1 << 30)	/* 1 GB */
+/* Allow bigger stacks for 64-bit processes */
+#define STACK_SIZE_MAX	(USER_WIDE_MODE					\
+			 ? (1 << 30)	/* 1 GB */			\
+			 : (CONFIG_MAX_STACK_SIZE_MB*1024*1024))
 
 #endif
 
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -72,10 +72,10 @@ static unsigned long mmap_upper_limit(vo
 {
 	unsigned long stack_base;
 
-	/* Limit stack size to 1GB - see setup_arg_pages() in fs/exec.c */
+	/* Limit stack size - see setup_arg_pages() in fs/exec.c */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;
 
 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -580,3 +580,18 @@ config PGTABLE_MAPPING
 
 	  You can check speed with zsmalloc benchmark:
 	  https://github.com/spartacus06/zsmapbench
+
+config MAX_STACK_SIZE_MB
+	int "Maximum user stack size for 32-bit processes (MB)"
+	default 80
+	range 8 256 if METAG
+	range 8 2048
+	depends on STACK_GROWSUP && (!64BIT || COMPAT)
+	help
+	  This is the maximum stack size in Megabytes in the VM layout of 32-bit
+	  user processes when the stack grows upwards (currently only on parisc
+	  and metag arch). The stack will be located at the highest memory
+	  address minus the given value, unless the RLIMIT_STACK hard limit is
+	  changed to a smaller value in which case that is used.
+
+	  A sane initial value is 80 MB.



From - Thu Nov 08 21:10:31 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: Implementing 64bit atomic gcc built-ins
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Hi all,


It seems that gcc on hppa currently doesn't support 64 bit atomic 
built-ins such as __sync_compare_and_swap().

Looking at the current implementation, glibc calls the LWS CAS in the 
kernel to do the compare and swap operation in an atomic way.
The current implementation of lws_compare_and_swap64 works only with 64 
bit kernel.

In the case of a 32 bit kernel, I'm not sure if it's possible to 
implement an atomic CAS that would work on two registers at once. If 
it's possible, most probably a lws_compare_and_swap_dword or so LWS 
should be created as I can't see the current ABI working in this 
scenario. As far as I understand the code in syscall.S, it would just be 
a matter of adding a ldw/stw instruction pair in cas_action to have 
64bit operations (on top of changing the ABI).

If we are running a 64bit kernel, I guess it might be possible to call 
lws_compare_and_swap64 from userspace, but it means that we would have 
to switch to wide mode in userspace prior to perform the call.
Again, I'm not sure that this is doable as it seems that to do so, the 
RSM instruction needs to be used while it's a privileged level 
instruction.
Another option is to create lws_compare_and_swap_dword with a different 
ABI that would take 64bit integers stored in two '32bit' registers, 
merge the registers into a single one and call lws_compare_ans_swap64.



For me, the best course of action here is to create 
lws_compare_and_swap_dword. Provided we can perform the CAS operation on 
two registers at once, it would solve the problem for 32bit userspace 
CAS to either kernel word size.

Would this approach work or is it a dead end ?

Any comments/advices ?


Thanks,
   Guy

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From - Thu Nov 08 21:10:31 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: Implementing 64bit atomic gcc built-ins
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On Wed, Jul 16, 2014 at 8:40 AM, Guy Martin <gmsoft@tuxicoman.be> wrote:
> It seems that gcc on hppa currently doesn't support 64 bit atomic built-ins
> such as __sync_compare_and_swap().
>
> Looking at the current implementation, glibc calls the LWS CAS in the kernel
> to do the compare and swap operation in an atomic way.
> The current implementation of lws_compare_and_swap64 works only with 64 bit
> kernel.

This doesn't do what you want.

IIRC both swaps, the swap32 and swap64 operate only on a 32-bit quantity

However swap32 operates using 32-bit operands e.g. addresses and values.

While swap64 operates using 64-bit operands allowing you to access
64-bit addresses, but still doing only a 32-bit swap. The upper-half
of the 64-bit "new value" should be all zeros or the swap will never
succeed. I expect the loaded 32-bit value will be sign extended so you
have to take that into account. The truth is that I don't remember
ever testing the 64-bit entry point, but it's there fore 64-bit
processes.

This is what I intended when I wrote the ABI.

> In the case of a 32 bit kernel, I'm not sure if it's possible to implement
> an atomic CAS that would work on two registers at once. If it's possible,
> most probably a lws_compare_and_swap_dword or so LWS should be created as I
> can't see the current ABI working in this scenario. As far as I understand
> the code in syscall.S, it would just be a matter of adding a ldw/stw
> instruction pair in cas_action to have 64bit operations (on top of changing
> the ABI).

It is *absolutely* possible and very easy.

For a 32-bit kernel to do a 64-bit atomic operation it needs to do
everything in two steps while holding the lws_cas locks.

For a 64-bit kernel you can simply use load double-word.

> If we are running a 64bit kernel, I guess it might be possible to call
> lws_compare_and_swap64 from userspace, but it means that we would have to
> switch to wide mode in userspace prior to perform the call.
> Again, I'm not sure that this is doable as it seems that to do so, the RSM
> instruction needs to be used while it's a privileged level instruction.
> Another option is to create lws_compare_and_swap_dword with a different ABI
> that would take 64bit integers stored in two '32bit' registers, merge the
> registers into a single one and call lws_compare_ans_swap64.

I would avoid switching to wide mode in userspace because you can
still take a signal between the switch and entering the kernel and
that would be catastrophic since you'd be running 32-bit code in wide
mode without having taken the appropriate precautions.

I would suggest creating lws_compare_and_swap_dword with a distinct ABI.

You will need two return registers for the 32-bit ABI, high and low.

> For me, the best course of action here is to create
> lws_compare_and_swap_dword. Provided we can perform the CAS operation on two
> registers at once, it would solve the problem for 32bit userspace CAS to
> either kernel word size.

Agreed.

> Would this approach work or is it a dead end ?

It is not a dead end, it's quite a nice project and enables 64-bit or
N-bit atomics using LWS CAS.

> Any comments/advices ?

Cheers,
Carlos.
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On 07/16/2014 04:24 PM, Carlos O'Donell wrote:
> On Wed, Jul 16, 2014 at 8:40 AM, Guy Martin <gmsoft@tuxicoman.be> wrote:
>> In the case of a 32 bit kernel, I'm not sure if it's possible to implement
>> an atomic CAS that would work on two registers at once. If it's possible,
>> most probably a lws_compare_and_swap_dword or so LWS should be created as I
>> can't see the current ABI working in this scenario. As far as I understand
>> the code in syscall.S, it would just be a matter of adding a ldw/stw
>> instruction pair in cas_action to have 64bit operations (on top of changing
>> the ABI).
> 
> It is *absolutely* possible and very easy.
> 
> For a 32-bit kernel to do a 64-bit atomic operation it needs to do
> everything in two steps while holding the lws_cas locks.

I agree this would work if userspace only modifies the atomic dword through the new lws call.
But is it still "atomic" if some other thread modifies the 64bit value not through the lws?
I mean, isn't there a possibility, that the upper or lower 32bit may be changed unexpectedly and out-of-sync?

Helge
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From - Thu Nov 08 21:10:31 2018
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On Wed, 2014-07-16 at 14:40 +0200, Guy Martin wrote:
> Hi all,
> 
> 
> It seems that gcc on hppa currently doesn't support 64 bit atomic 
> built-ins such as __sync_compare_and_swap().
> 
> Looking at the current implementation, glibc calls the LWS CAS in the 
> kernel to do the compare and swap operation in an atomic way.
> The current implementation of lws_compare_and_swap64 works only with 64 
> bit kernel.
> 
> In the case of a 32 bit kernel, I'm not sure if it's possible to 
> implement an atomic CAS that would work on two registers at once. If 
> it's possible, most probably a lws_compare_and_swap_dword or so LWS 
> should be created as I can't see the current ABI working in this 
> scenario. As far as I understand the code in syscall.S, it would just be 
> a matter of adding a ldw/stw instruction pair in cas_action to have 
> 64bit operations (on top of changing the ABI).

Atomic operations are only done at the natural width of the binary
architecture.  That means even on 32 bit x86 there's no natural atomic
64 bit swap and no expectation of one.  Glibc can emulate one, but it
shouldn't assume there's any natural machine op.

This should mean that a 32 bit kernel has no need at all for the 64 bit
ops to be implemented in kernel.

> If we are running a 64bit kernel, I guess it might be possible to call 
> lws_compare_and_swap64 from userspace, but it means that we would have 
> to switch to wide mode in userspace prior to perform the call.
> Again, I'm not sure that this is doable as it seems that to do so, the 
> RSM instruction needs to be used while it's a privileged level 
> instruction.
> Another option is to create lws_compare_and_swap_dword with a different 
> ABI that would take 64bit integers stored in two '32bit' registers, 
> merge the registers into a single one and call lws_compare_ans_swap64.

Same rule applies.  Until we have a 64 bit userspace, we have no use for
64 bit atomic swaps.

James


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On Wed, Jul 16, 2014 at 5:16 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Wed, 2014-07-16 at 14:40 +0200, Guy Martin wrote:
>> Hi all,
>>
>>
>> It seems that gcc on hppa currently doesn't support 64 bit atomic
>> built-ins such as __sync_compare_and_swap().
>>
>> Looking at the current implementation, glibc calls the LWS CAS in the
>> kernel to do the compare and swap operation in an atomic way.
>> The current implementation of lws_compare_and_swap64 works only with 64
>> bit kernel.
>>
>> In the case of a 32 bit kernel, I'm not sure if it's possible to
>> implement an atomic CAS that would work on two registers at once. If
>> it's possible, most probably a lws_compare_and_swap_dword or so LWS
>> should be created as I can't see the current ABI working in this
>> scenario. As far as I understand the code in syscall.S, it would just be
>> a matter of adding a ldw/stw instruction pair in cas_action to have
>> 64bit operations (on top of changing the ABI).
>
> Atomic operations are only done at the natural width of the binary
> architecture.  That means even on 32 bit x86 there's no natural atomic
> 64 bit swap and no expectation of one.  Glibc can emulate one, but it
> shouldn't assume there's any natural machine op.

That's right.

Which speaks to Helge's comment.

Userspace algorithms can't expect that a 64-bit write will be atomic
with respect to a 64-bit atomic operation.

You must use the atomic operations to both read and write the
wider-than-natural-width types.

> This should mean that a 32 bit kernel has no need at all for the 64 bit
> ops to be implemented in kernel.

Has no need, yes, but from the userspace perspective such an operation
helps write algorithms that take advantage of 64-bits of atomic
storage without having to deal with signals, interruptions, locking
semantics etc.

Particularly when you are porting an algorithm that is already proven
and uses a 64-bit atomic, having these features means you don't have
to rewrite all the algorithms during the port.

Case in point I created LWS CAS to avoid having to rewrite all the
nptl threading algorithms for hppa based on ldcw.

>> If we are running a 64bit kernel, I guess it might be possible to call
>> lws_compare_and_swap64 from userspace, but it means that we would have
>> to switch to wide mode in userspace prior to perform the call.
>> Again, I'm not sure that this is doable as it seems that to do so, the
>> RSM instruction needs to be used while it's a privileged level
>> instruction.
>> Another option is to create lws_compare_and_swap_dword with a different
>> ABI that would take 64bit integers stored in two '32bit' registers,
>> merge the registers into a single one and call lws_compare_ans_swap64.
>
> Same rule applies.  Until we have a 64 bit userspace, we have no use for
> 64 bit atomic swaps.

I disagree. See the rationale above which argues it is out of a
practical necessity for porting algorithms wholesale without
modification.

Cheers,
Carlos.
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From - Thu Nov 08 21:10:31 2018
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On 2014-07-17 03:52, Carlos O'Donell wrote:
> Userspace algorithms can't expect that a 64-bit write will be atomic
> with respect to a 64-bit atomic operation.
> 
> You must use the atomic operations to both read and write the
> wider-than-natural-width types.
> 

Reviewing HPPA 1.1 specs, I see that the FPU has 64bit registers.
Can't we use those registers to perform 64bit atomic load and store ?

As far as I can see, FLDDX and FSTDX should be able to do the job.
Unless there is something I'm missing about the FPU :)

>> This should mean that a 32 bit kernel has no need at all for the 64 
>> bit
>> ops to be implemented in kernel.
> 
> Has no need, yes, but from the userspace perspective such an operation
> helps write algorithms that take advantage of 64-bits of atomic
> storage without having to deal with signals, interruptions, locking
> semantics etc.
> 
> Particularly when you are porting an algorithm that is already proven
> and uses a 64-bit atomic, having these features means you don't have
> to rewrite all the algorithms during the port.
> 
> Case in point I created LWS CAS to avoid having to rewrite all the
> nptl threading algorithms for hppa based on ldcw.
> 

Just to add up on this, I often use 64 bit __sync_fetch_and_add() for
performance counter in a software I develop. It's really useful if
you don't want to bother with having a lock per performance object.

   Guy

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To: Guy Martin <gmsoft@tuxicoman.be>
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On 17-Jul-14, at 4:44 AM, Guy Martin wrote:

> On 2014-07-17 03:52, Carlos O'Donell wrote:
>> Userspace algorithms can't expect that a 64-bit write will be atomic
>> with respect to a 64-bit atomic operation.
>> You must use the atomic operations to both read and write the
>> wider-than-natural-width types.
>
> Reviewing HPPA 1.1 specs, I see that the FPU has 64bit registers.
> Can't we use those registers to perform 64bit atomic load and store ?
>
> As far as I can see, FLDDX and FSTDX should be able to do the job.
> Unless there is something I'm missing about the FPU :)

Yes, although I believe there are some restrictions involving loads  
and stores
to I/O space.  There are atomic_loaddi and atomic_storedi patterns  
implemented
in GCC to do 64-bit loads and stores.

>
>>> This should mean that a 32 bit kernel has no need at all for the  
>>> 64 bit
>>> ops to be implemented in kernel.
>> Has no need, yes, but from the userspace perspective such an  
>> operation
>> helps write algorithms that take advantage of 64-bits of atomic
>> storage without having to deal with signals, interruptions, locking
>> semantics etc.
>> Particularly when you are porting an algorithm that is already proven
>> and uses a 64-bit atomic, having these features means you don't have
>> to rewrite all the algorithms during the port.
>> Case in point I created LWS CAS to avoid having to rewrite all the
>> nptl threading algorithms for hppa based on ldcw.
>
> Just to add up on this, I often use 64 bit __sync_fetch_and_add() for
> performance counter in a software I develop. It's really useful if
> you don't want to bother with having a lock per performance object.

There is a need for 64-bit atomics in a number of packages.  In the  
other
direction, some packages would like atomic bit operations.

As Helge pointed out, none of the sync atomics available on parisc are  
lock free.  As such,
one can't use loads and stores to operate on locations modified by LWS  
CAS operations.
Even in a simple userspace spin lock implementation, we found a race  
condition in trying
to reset the lock with a simple store.  The lock had to be reset using  
a LES CAS operation.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [RFC PATCH] 64bit LWS CAS
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--MP_/km4FDq+E+/5RFV+s67pDqBM
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Hi,

I've attached the gcc and kernel patch for 64bit CAS. So far I've
implemented the easiest use case which is for 64bit kernel.

I'll investigate using the FPU register for 64 bit operations with
32bit kernels.

I feel like there is a lot of code duplication in my patches, this can
probably be optimized altho it might reduce readability.

Any comments ?


Thanks,
  Guy
--MP_/km4FDq+E+/5RFV+s67pDqBM
Content-Type: text/x-patch
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename=linux-hppa-atomic-cas-64bit.patch

--- ./arch/parisc/kernel/syscall.S.orig	2014-07-16 16:39:20.684498341 +0200
+++ ./arch/parisc/kernel/syscall.S	2014-07-17 21:34:35.091933739 +0200
@@ -74,7 +74,7 @@
 	/* ADDRESS 0xb0 to 0xb8, lws uses two insns for entry */
 	/* Light-weight-syscall entry must always be located at 0xb0 */
 	/* WARNING: Keep this number updated with table size changes */
-#define __NR_lws_entries (2)
+#define __NR_lws_entries (3)
 
 lws_entry:
 	gate	lws_start, %r0		/* increase privilege */
@@ -502,7 +502,7 @@
 
 	
 	/***************************************************
-		Implementing CAS as an atomic operation:
+		Implementing 32bit CAS as an atomic operation:
 
 		%r26 - Address to examine
 		%r25 - Old value to check (old)
@@ -658,6 +658,161 @@
 	ASM_EXCEPTIONTABLE_ENTRY(1b-linux_gateway_page, 3b-linux_gateway_page)
 	ASM_EXCEPTIONTABLE_ENTRY(2b-linux_gateway_page, 3b-linux_gateway_page)
 
+	
+	/***************************************************
+		Implementing 64bit CAS as an atomic operation for ELF32:
+
+		%r26 - Address to examine
+		%r25 - Old 32bit high value to check (old)
+		%r24 - Old 32bit low value to check (old)
+		%r23 - New 32bit high value to set (new)
+		%r22 - New 32bit low value to set (new)
+		%r28 - Return prev 32bit high through this register.
+		%r29 - Return prev 32bit low through this register.
+		%r21 - Kernel error code
+
+		If debugging is DISabled:
+
+		%r21 has the following meanings:
+
+		EAGAIN - CAS is busy, ldcw failed, try again.
+		EFAULT - Read or write failed.		
+
+		If debugging is enabled:
+
+		EDEADLOCK - CAS called recursively.
+		EAGAIN && r28 == 1 - CAS is busy. Lock contended.
+		EAGAIN && r28 == 2 - CAS is busy. ldcw failed.
+		EFAULT - Read or write failed.
+
+		Scratch: r20, r28, r1
+
+	****************************************************/
+
+	/* ELF32 Process entry path */
+lws_compare_and_swap_dword:
+#ifdef CONFIG_64BIT
+	/* Clip all the input registers */
+	depdi	0, 31, 32, %r26
+	/* Merge low/high bits */
+	shld	%r25, 32, %r24
+	shld	%r23, 32, %r22
+#else
+#error Not implemented
+#endif
+	/* Load start of lock table */
+	ldil	L%lws_lock_start, %r20
+	ldo	R%lws_lock_start(%r20), %r28
+
+	/* Extract four bits from r26 and hash lock (Bits 4-7) */
+	extru  %r26, 27, 4, %r20
+
+	/* Find lock to use, the hash is either one of 0 to
+	   15, multiplied by 16 (keep it 16-byte aligned)
+	   and add to the lock table offset. */
+	shlw	%r20, 4, %r20
+	add	%r20, %r28, %r20
+
+# if ENABLE_LWS_DEBUG
+	/*	
+		DEBUG, check for deadlock! 
+		If the thread register values are the same
+		then we were the one that locked it last and
+		this is a recurisve call that will deadlock.
+		We *must* giveup this call and fail.
+	*/
+	ldw	4(%sr2,%r20), %r28			/* Load thread register */
+	/* WARNING: If cr27 cycles to the same value we have problems */
+	mfctl	%cr27, %r21				/* Get current thread register */
+	cmpb,<>,n	%r21, %r28, cas_dword_lock	/* Called recursive? */
+	b	lws_exit				/* Return error! */
+	ldo	-EDEADLOCK(%r0), %r21
+cas_dword_lock:
+	cmpb,=,n	%r0, %r28, cas_dword_nocontend /* Is nobody using it? */
+	ldo	1(%r0), %r28				/* 1st case */
+	b	lws_exit				/* Contended... */
+	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
+cas_dword_nocontend:
+# endif
+/* ENABLE_LWS_DEBUG */
+
+	rsm	PSW_SM_I, %r0				/* Disable interrupts */
+	/* COW breaks can cause contention on UP systems */
+	LDCW	0(%sr2,%r20), %r28			/* Try to acquire the lock */
+	cmpb,<>,n	%r0, %r28, cas_dword_action	/* Did we get it? */
+cas_dword_wouldblock:
+	ldo	2(%r0), %r28				/* 2nd case */
+	ssm	PSW_SM_I, %r0
+	b	lws_exit				/* Contended... */
+	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
+
+	/*
+		prev = *addr;
+		if ( prev == old )
+		  *addr = new;
+		return prev;
+	*/
+
+	/* NOTES:
+		This all works becuse intr_do_signal
+		and schedule both check the return iasq
+		and see that we are on the kernel page
+		so this process is never scheduled off
+		or is ever sent any signal of any sort,
+		thus it is wholly atomic from usrspaces
+		perspective
+	*/
+cas_dword_action:
+#if defined CONFIG_SMP && ENABLE_LWS_DEBUG
+	/* DEBUG */
+	mfctl	%cr27, %r1
+	stw	%r1, 4(%sr2,%r20)
+#endif
+
+#ifdef CONFIG_64BIT
+	/* The load and store could fail */
+4:	ldd,ma	0(%sr3,%r26), %r29
+	sub,<>	%r29, %r24, %r0
+5:	std,ma	%r22, 0(%sr3,%r26)
+	/* Split the high/low bit of the result */
+	shrd	%r29,32,%r28
+	depdi	0, 31, 32, %r28
+#else
+#error Not implemented
+#endif
+
+	/* Free lock */
+	stw,ma	%r20, 0(%sr2,%r20)
+#if ENABLE_LWS_DEBUG
+	/* Clear thread register indicator */
+	stw	%r0, 4(%sr2,%r20)
+#endif
+	/* Enable interrupts */
+	ssm	PSW_SM_I, %r0
+	/* Return to userspace, set no error */
+	b	lws_exit
+	copy	%r0, %r21
+
+6:		
+	/* Error occurred on load or store */
+	/* Free lock */
+	stw	%r20, 0(%sr2,%r20)
+#if ENABLE_LWS_DEBUG
+	stw	%r0, 4(%sr2,%r20)
+#endif
+	ssm	PSW_SM_I, %r0
+	b	lws_exit
+	ldo	-EFAULT(%r0),%r21	/* set errno */
+	nop
+	nop
+	nop
+	nop
+
+	/* Two exception table entries, one for the loads,
+	   the other for the store. Either return -EFAULT.
+	   Each of the entries must be relocated. */
+	ASM_EXCEPTIONTABLE_ENTRY(4b-linux_gateway_page, 6b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(5b-linux_gateway_page, 6b-linux_gateway_page)
 
 	/* Make sure nothing else is placed on this page */
 	.align PAGE_SIZE
@@ -675,8 +830,9 @@
 	/* Light-weight-syscall table */
 	/* Start of lws table. */
 ENTRY(lws_table)
-	LWS_ENTRY(compare_and_swap32)	/* 0 - ELF32 Atomic compare and swap */
-	LWS_ENTRY(compare_and_swap64)	/* 1 - ELF64 Atomic compare and swap */
+	LWS_ENTRY(compare_and_swap32)		/* 0 - ELF32 Atomic 32bit compare and swap */
+	LWS_ENTRY(compare_and_swap64)		/* 1 - ELF64 Atomic 32bit compare and swap */
+	LWS_ENTRY(compare_and_swap_dword)	/* 2 - ELF32 Atomic 64bit compare and swap */
 END(lws_table)
 	/* End of lws table */
 

--MP_/km4FDq+E+/5RFV+s67pDqBM
Content-Type: text/x-patch
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename=gcc-atomic-buildins-64bit.patch

--- libgcc/config/pa/linux-atomic.c.orig	2014-07-16 19:29:28.670595484 +0000
+++ libgcc/config/pa/linux-atomic.c	2014-07-16 19:31:32.754003341 +0000
@@ -24,6 +24,8 @@
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
+#include <stdint.h>
+
 #define EFAULT  14 
 #define EBUSY   16
 #define ENOSYS 251 
@@ -75,6 +77,39 @@
   return lws_errno;
 }
 
+/* Kernel helper for compare-and-exchange a 64-bit value from ELF32.  */
+static inline long
+__kernel_cmpxchg_dword32 (int64_t oldval, int64_t newval, int64_t *mem)
+{
+  register unsigned long lws_mem asm("r26") = (unsigned long) (mem);
+  register long lws_ret_h   asm("r28");
+  register long lws_ret_l   asm("r29");
+  register long lws_errno   asm("r21");
+  register int lws_old_h    asm("r25") = oldval >> 32;
+  register int lws_old_l    asm("r24") = oldval & 0xffffffff;
+  register int lws_new_h    asm("r23") = newval >> 32;
+  register int lws_new_l    asm("r22") = newval & 0xffffffff;
+  asm volatile (	"ble	0xb0(%%sr2, %%r0)	\n\t"
+			"ldi	%8, %%r20		\n\t"
+	: "=r" (lws_ret_h), "=r" (lws_ret_l), "=r" (lws_errno), "=r" (lws_mem),
+	  "=r" (lws_old_h), "=r" (lws_old_l), "=r" (lws_new_h), "=r" (lws_new_l)
+	: "i" (2), "3" (lws_mem), "4" (lws_old_h), "5" (lws_old_l), "6" (lws_new_h), "7" (lws_new_l)
+	: "r1", "r20", "r31", "memory"
+  );
+  if (__builtin_expect (lws_errno == -EFAULT || lws_errno == -ENOSYS, 0))
+    ABORT_INSTRUCTION;
+
+   int64_t lws_ret = ((int64_t)lws_ret_h << 32) | (int64_t)lws_ret_l;
+
+  /* If the kernel LWS call succeeded (lws_errno == 0), lws_ret contains
+     the old value from memory.  If this value is equal to OLDVAL, the
+     new value was written to memory.  If not, return -EBUSY.  */
+  if (!lws_errno && lws_ret != oldval)
+    lws_errno = -EBUSY;
+
+  return lws_errno;
+}
+
 #define HIDDEN __attribute__ ((visibility ("hidden")))
 
 /* Big endian masks  */
@@ -84,6 +119,28 @@
 #define MASK_1 0xffu
 #define MASK_2 0xffffu
 
+#define FETCH_AND_OP_DWORD(OP, PFX_OP, INF_OP)					\
+  int64_t HIDDEN								\
+  __sync_fetch_and_##OP##_8 (int64_t *ptr, int64_t val)				\
+  {										\
+    int64_t tmp;								\
+    int failure;								\
+										\
+    do {									\
+      tmp = *ptr;								\
+      failure = __kernel_cmpxchg_dword32 (tmp, PFX_OP (tmp INF_OP val), ptr);	\
+    } while (failure != 0);							\
+										\
+    return tmp;									\
+  }
+
+FETCH_AND_OP_DWORD (add,   , +)
+FETCH_AND_OP_DWORD (sub,   , -)
+FETCH_AND_OP_DWORD (or,    , |)
+FETCH_AND_OP_DWORD (and,   , &)
+FETCH_AND_OP_DWORD (xor,   , ^)
+FETCH_AND_OP_DWORD (nand, ~, &)
+
 #define FETCH_AND_OP_WORD(OP, PFX_OP, INF_OP)				\
   int HIDDEN								\
   __sync_fetch_and_##OP##_4 (int *ptr, int val)				\
@@ -147,6 +204,28 @@
 SUBWORD_SYNC_OP (xor,   , ^, unsigned char, 1, oldval)
 SUBWORD_SYNC_OP (nand, ~, &, unsigned char, 1, oldval)
 
+#define OP_AND_FETCH_DWORD(OP, PFX_OP, INF_OP)					\
+  int64_t HIDDEN								\
+  __sync_##OP##_and_fetch_8 (int64_t *ptr, int64_t val)				\
+  {										\
+    int64_t tmp;								\
+    int failure;								\
+										\
+    do {									\
+      tmp = *ptr;								\
+      failure = __kernel_cmpxchg_dword32 (tmp, PFX_OP (tmp INF_OP val), ptr);	\
+    } while (failure != 0);							\
+										\
+    return PFX_OP (tmp INF_OP val);						\
+  }
+
+OP_AND_FETCH_DWORD (add,   , +)
+OP_AND_FETCH_DWORD (sub,   , -)
+OP_AND_FETCH_DWORD (or,    , |)
+OP_AND_FETCH_DWORD (and,   , &)
+OP_AND_FETCH_DWORD (xor,   , ^)
+OP_AND_FETCH_DWORD (nand, ~, &)
+
 #define OP_AND_FETCH_WORD(OP, PFX_OP, INF_OP)				\
   int HIDDEN								\
   __sync_##OP##_and_fetch_4 (int *ptr, int val)				\
@@ -182,6 +261,26 @@
 SUBWORD_SYNC_OP (xor,   , ^, unsigned char, 1, newval)
 SUBWORD_SYNC_OP (nand, ~, &, unsigned char, 1, newval)
 
+int64_t HIDDEN
+__sync_val_compare_and_swap_8 (int64_t *ptr, int64_t oldval, int64_t newval)
+{
+  int64_t actual_oldval;
+  int fail;
+    
+  while (1)
+    {
+      actual_oldval = *ptr;
+
+      if (__builtin_expect (oldval != actual_oldval, 0))
+	return actual_oldval;
+
+      fail = __kernel_cmpxchg_dword32 (actual_oldval, newval, ptr);
+  
+      if (__builtin_expect (!fail, 1))
+	return actual_oldval;
+    }
+}
+
 int HIDDEN
 __sync_val_compare_and_swap_4 (int *ptr, int oldval, int newval)
 {
@@ -256,6 +355,20 @@
 SUBWORD_BOOL_CAS (unsigned short, 2)
 SUBWORD_BOOL_CAS (unsigned char,  1)
 
+int64_t HIDDEN
+__sync_lock_test_and_set_8 (int64_t *ptr, int64_t val)
+{
+  int64_t oldval;
+  int failure;
+
+  do {
+    oldval = *ptr;
+    failure = __kernel_cmpxchg_dword32 (oldval, val, ptr);
+  } while (failure != 0);
+
+  return oldval;
+}
+
 int HIDDEN
 __sync_lock_test_and_set_4 (int *ptr, int val)
 {
@@ -300,6 +413,7 @@
     *ptr = 0;								\
   }
 
-SYNC_LOCK_RELEASE (int,   4)
-SYNC_LOCK_RELEASE (short, 2)
-SYNC_LOCK_RELEASE (char,  1)
+SYNC_LOCK_RELEASE (int64_t, 8)
+SYNC_LOCK_RELEASE (int,     4)
+SYNC_LOCK_RELEASE (short,   2)
+SYNC_LOCK_RELEASE (char,    1)

--MP_/km4FDq+E+/5RFV+s67pDqBM--

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From - Thu Nov 08 21:10:31 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [RFC PATCH] 64bit LWS CAS
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On 7/17/2014 4:00 PM, Guy Martin wrote:
> +#include <stdint.h>
> +
I would kill the above include and use long long instead of int64_t.  
Generally,
we don't want libgcc routines to depend on system includes.

SYNC_LOCK_RELEASE needs to be fixed to use __kernel_cmpxchg and 
__kernel_cmpxchg_dword32.
The current implementation won't be atomic for long long, and in glibc, 
a similar implementation caused
problems for the int type.  I've been testing a patch for the latter and 
will apply it soon.

Dave

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From: Helge Deller <deller@gmx.de>
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Subject: Re: [RFC PATCH] 64bit LWS CAS
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On 07/17/2014 10:00 PM, Guy Martin wrote:
+/* Kernel helper for compare-and-exchange a 64-bit value from ELF32.  */
+static inline long
+__kernel_cmpxchg_dword32 (int64_t oldval, int64_t newval, int64_t *mem)
+{
+  register unsigned long lws_mem asm("r26") = (unsigned long) (mem);
+  register long lws_ret_h   asm("r28");
+  register long lws_ret_l   asm("r29");
+  register long lws_errno   asm("r21");
+  register int lws_old_h    asm("r25") = oldval >> 32;
+  register int lws_old_l    asm("r24") = oldval & 0xffffffff;
+  register int lws_new_h    asm("r23") = newval >> 32;
+  register int lws_new_l    asm("r22") = newval & 0xffffffff;
+  asm volatile (	"ble	0xb0(%%sr2, %%r0)	\n\t"
+			"ldi	%8, %%r20		\n\t"
+	: "=r" (lws_ret_h), "=r" (lws_ret_l), "=r" (lws_errno), "=r" (lws_mem),
+	  "=r" (lws_old_h), "=r" (lws_old_l), "=r" (lws_new_h), "=r" (lws_new_l)
+	: "i" (2), "3" (lws_mem), "4" (lws_old_h), "5" (lws_old_l), "6" (lws_new_h), "7" (lws_new_l)
+	: "r1", "r20", "r31", "memory"
+  );

Just a thought:
I'm not sure how good gcc optimizes the assignment of the 64bit parameters to their final destination registers (r22-r25) with regard to the shifting and masking, but it might be worth to check if gcc's built-in "R2" functionality (sorry, I don't know the name of this feature!) can help here?

As an example see the __put_kernel_asm64() macro in the the kernel header arch/parisc/include/asm/uaccess.h:

#define __put_kernel_asm64(__val,ptr) do {                  \
        __asm__ __volatile__ (                              \
                "\n1:\tstw %2,0(%1)"                        \
                "\n2:\tstw %R2,4(%1)\n\t"                   \
                : "=r"(__pu_err)                            \
                : "r"(ptr), "r"(__val), "0"(__pu_err) \
                : "r1");

Helge
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From - Thu Nov 08 21:10:31 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [RFC PATCH] 64bit LWS CAS
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On 17-Jul-14, at 5:30 PM, Helge Deller wrote:

> On 07/17/2014 10:00 PM, Guy Martin wrote:
> +/* Kernel helper for compare-and-exchange a 64-bit value from  
> ELF32.  */
> +static inline long
> +__kernel_cmpxchg_dword32 (int64_t oldval, int64_t newval, int64_t  
> *mem)
> +{
> +  register unsigned long lws_mem asm("r26") = (unsigned long) (mem);
> +  register long lws_ret_h   asm("r28");
> +  register long lws_ret_l   asm("r29");
> +  register long lws_errno   asm("r21");
> +  register int lws_old_h    asm("r25") = oldval >> 32;
> +  register int lws_old_l    asm("r24") = oldval & 0xffffffff;
> +  register int lws_new_h    asm("r23") = newval >> 32;
> +  register int lws_new_l    asm("r22") = newval & 0xffffffff;
> +  asm volatile (	"ble	0xb0(%%sr2, %%r0)	\n\t"
> +			"ldi	%8, %%r20		\n\t"
> +	: "=r" (lws_ret_h), "=r" (lws_ret_l), "=r" (lws_errno),  
> "=r" (lws_mem),
> +	  "=r" (lws_old_h), "=r" (lws_old_l), "=r" (lws_new_h),  
> "=r" (lws_new_l)
> +	: "i" (2), "3" (lws_mem), "4" (lws_old_h), "5" (lws_old_l),  
> "6" (lws_new_h), "7" (lws_new_l)
> +	: "r1", "r20", "r31", "memory"
> +  );
>
> Just a thought:
> I'm not sure how good gcc optimizes the assignment of the 64bit  
> parameters to their final destination registers (r22-r25) with  
> regard to the shifting and masking, but it might be worth to check  
> if gcc's built-in "R2" functionality (sorry, I don't know the name  
> of this feature!) can help here?
>
> As an example see the __put_kernel_asm64() macro in the the kernel  
> header arch/parisc/include/asm/uaccess.h:
>
> #define __put_kernel_asm64(__val,ptr) do {                  \
>        __asm__ __volatile__ (                              \
>                "\n1:\tstw %2,0(%1)"                        \
>                "\n2:\tstw %R2,4(%1)\n\t"                   \
>                : "=r"(__pu_err)                            \
>                : "r"(ptr), "r"(__val), "0"(__pu_err) \
>                : "r1");


Maybe.  On the other hand, if mem was the third argument in the ble  
call, it likely would be possible to write:

register long long lws_ret asm("r28");
register long long lws_old asm("r25");
register long long lws_new asm("r23");
register unsigned long lws_mem asm("r22");

This is consistent with the parisc calling conventions for 64-bit  
objects.  If it works, the low part of lws_ret, etc,
should automatically get allocated to the correct register and the  
copy done efficiently.  Have to say I have
not tried it.

Dave
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From: John David Anglin <dave.anglin@bell.net>
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On 17-Jul-14, at 5:12 PM, John David Anglin wrote:

> SYNC_LOCK_RELEASE needs to be fixed to use __kernel_cmpxchg and  
> __kernel_cmpxchg_dword32.
> The current implementation won't be atomic for long long, and in  
> glibc, a similar implementation caused
> problems for the int type.  I've been testing a patch for the latter  
> and will apply it soon.

The change is now committed to GCC 4.10.

Dave
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Cc: Guy Martin <gmsoft@tuxicoman.be>,
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To: John David Anglin <dave.anglin@bell.net>
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On 17-Jul-14, at 7:27 PM, John David Anglin wrote:

> On 17-Jul-14, at 5:12 PM, John David Anglin wrote:
>
>> SYNC_LOCK_RELEASE needs to be fixed to use __kernel_cmpxchg and  
>> __kernel_cmpxchg_dword32.
>> The current implementation won't be atomic for long long, and in  
>> glibc, a similar implementation caused
>> problems for the int type.  I've been testing a patch for the  
>> latter and will apply it soon.
>
> The change is now committed to GCC 4.10.

Also, see this change:
https://gcc.gnu.org/ml/gcc-patches/2014-07/msg01242.html

We will need a DI mode define for the 64-bit sync operation.

This enables "future" support in libstdc++.

Dave
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From: Jiri Slaby <jslaby@suse.cz>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.stable,gmane.linux.kernel.metag
Subject: [patch NOT added to the 3.12 stable tree] parisc,metag: Do not hardcode maximum userspace stack size
Date: Fri, 18 Jul 2014 09:27:07 +0200
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Cc: jslaby@suse.cz, Helge Deller <deller@gmx.de>,
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From: Helge Deller <deller@gmx.de>

This patch does NOT apply to the 3.12 stable tree. If you still want
it applied, please provide a backport.

===============

commit 042d27acb64924a0e8a43e972485913a32407beb upstream.

This patch affects only architectures where the stack grows upwards
(currently parisc and metag only). On those do not hardcode the maximum
initial stack size to 1GB for 32-bit processes, but make it configurable
via a config option.

The main problem with the hardcoded stack size is, that we have two
memory regions which grow upwards: stack and heap. To keep most of the
memory available for heap in a flexmap memory layout, it makes no sense
to hard allocate up to 1GB of the memory for stack which can't be used
as heap then.

This patch makes the stack size for 32-bit processes configurable and
uses 80MB as default value which has been in use during the last few
years on parisc and which hasn't showed any problems yet.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Cc: linux-metag@vger.kernel.org
Cc: John David Anglin <dave.anglin@bell.net>
---
 arch/metag/include/asm/processor.h  |  2 +-
 arch/parisc/include/asm/processor.h |  5 ++++-
 arch/parisc/kernel/sys_parisc.c     |  6 +++---
 mm/Kconfig                          | 15 +++++++++++++++
 4 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index 3be8581af495..a8a37477c66e 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -23,7 +23,7 @@
 #define STACK_TOP	(TASK_SIZE - PAGE_SIZE)
 #define STACK_TOP_MAX	STACK_TOP
 /* Maximum virtual space for stack */
-#define STACK_SIZE_MAX	(1 << 28)	/* 256 MB */
+#define STACK_SIZE_MAX	(CONFIG_MAX_STACK_SIZE_MB*1024*1024)
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 86522ef09d52..d951c9681ab3 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -55,7 +55,10 @@
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
-#define STACK_SIZE_MAX	(1 << 30)	/* 1 GB */
+/* Allow bigger stacks for 64-bit processes */
+#define STACK_SIZE_MAX	(USER_WIDE_MODE					\
+			 ? (1 << 30)	/* 1 GB */			\
+			 : (CONFIG_MAX_STACK_SIZE_MB*1024*1024))
 
 #endif
 
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 31ffa9b55322..e1ffea2f9a0b 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -72,10 +72,10 @@ static unsigned long mmap_upper_limit(void)
 {
 	unsigned long stack_base;
 
-	/* Limit stack size to 1GB - see setup_arg_pages() in fs/exec.c */
+	/* Limit stack size - see setup_arg_pages() in fs/exec.c */
 	stack_base = rlimit_max(RLIMIT_STACK);
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
+	if (stack_base > STACK_SIZE_MAX)
+		stack_base = STACK_SIZE_MAX;
 
 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }
diff --git a/mm/Kconfig b/mm/Kconfig
index ebe5880c29d6..1b5a95f0fa01 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -581,3 +581,18 @@ config PGTABLE_MAPPING
 
 config GENERIC_EARLY_IOREMAP
 	bool
+
+config MAX_STACK_SIZE_MB
+	int "Maximum user stack size for 32-bit processes (MB)"
+	default 80
+	range 8 256 if METAG
+	range 8 2048
+	depends on STACK_GROWSUP && (!64BIT || COMPAT)
+	help
+	  This is the maximum stack size in Megabytes in the VM layout of 32-bit
+	  user processes when the stack grows upwards (currently only on parisc
+	  and metag arch). The stack will be located at the highest memory
+	  address minus the given value, unless the RLIMIT_STACK hard limit is
+	  changed to a smaller value in which case that is used.
+
+	  A sane initial value is 80 MB.
-- 
2.0.0

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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [RFC PATCH] 64bit LWS CAS
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On 7/17/2014 4:00 PM, Guy Martin wrote:
> +/* Kernel helper for compare-and-exchange a 64-bit value from ELF32.  */
> +static inline long
> +__kernel_cmpxchg_dword32 (int64_t oldval, int64_t newval, int64_t *mem)
I'm thinking we don't need suffix "32".  If a 64-bit runtime is ever 
developed,
there probably would be a separate file for it as on arm.

This discussion has got me thinking that the char and short 
implementations may be broken (i.e,
the CAS operation may clobber data adjacent to location being operated 
on).  I'm thinking we need
separate LWS calls for them.  Thoughts?

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From: Nicholas Krause <xerofoify@gmail.com>
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Subject: [PATCH] parisc: Remove FIXME comment
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The comment for size of frame not being needed is incorrect , the
function called needs this parameter.

Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
---
 arch/parisc/kernel/signal.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 1cba8f2..1d550b5 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -240,7 +240,6 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #endif
 	
 	usp = (regs->gr[30] & ~(0x01UL));
-	/*FIXME: frame_size parameter is unused, remove it. */
 	frame = get_sigframe(ka, usp, sizeof(*frame));
 
 	DBG(1,"SETUP_RT_FRAME: START\n");
-- 
1.9.1

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On 07/18/2014 10:37 PM, Nicholas Krause wrote:
> The comment for size of frame not being needed is incorrect , the
> function called needs this parameter.

Thanks for the patch Nicholas.

It has been queued up:
https://patchwork.kernel.org/patch/4587631/
and
https://patchwork.kernel.org/patch/4486231/

I will apply it at some point, but not yet.
There are other (more important) patches upcoming regarding the 
signal handling,  and I don't want to break those at the moment.

Helge

> 
> Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
> ---
>  arch/parisc/kernel/signal.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
> index 1cba8f2..1d550b5 100644
> --- a/arch/parisc/kernel/signal.c
> +++ b/arch/parisc/kernel/signal.c
> @@ -240,7 +240,6 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
>  #endif
>  	
>  	usp = (regs->gr[30] & ~(0x01UL));
> -	/*FIXME: frame_size parameter is unused, remove it. */
>  	frame = get_sigframe(ka, usp, sizeof(*frame));
>  
>  	DBG(1,"SETUP_RT_FRAME: START\n");
> 

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On Fri, 2014-07-18 at 16:37 -0400, Nicholas Krause wrote:
> The comment for size of frame not being needed is incorrect , the
> function called needs this parameter.

Actually, that's not correct.  The point of the FIXME is that fram_size
is only used in a debug print and could be eliminated since the
internals of the function excluding the debugging statements don't use
it.

James


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On Fri, Jul 18, 2014 at 10:49 AM, John David Anglin
<dave.anglin@bell.net> wrote:
> On 7/17/2014 4:00 PM, Guy Martin wrote:
>>
>> +/* Kernel helper for compare-and-exchange a 64-bit value from ELF32.  */
>> +static inline long
>> +__kernel_cmpxchg_dword32 (int64_t oldval, int64_t newval, int64_t *mem)
>
> I'm thinking we don't need suffix "32".  If a 64-bit runtime is ever
> developed,
> there probably would be a separate file for it as on arm.
>
> This discussion has got me thinking that the char and short implementations
> may be broken (i.e,
> the CAS operation may clobber data adjacent to location being operated on).
> I'm thinking we need
> separate LWS calls for them.  Thoughts?

Yes, you need masking or short load variants. How did you test the
char and short implementations? ;-)

Cheers,
Carlos.
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On 18-Jul-14, at 5:55 PM, Carlos O'Donell wrote:

>> This discussion has got me thinking that the char and short  
>> implementations
>> may be broken (i.e,
>> the CAS operation may clobber data adjacent to location being  
>> operated on).
>> I'm thinking we need
>> separate LWS calls for them.  Thoughts?
>
> Yes, you need masking or short load variants. How did you test the
> char and short implementations? ;-)

There is no testing beyond the general testing of atomics in GCC.   
There is masking
in the GCC code but I think this is racy.  Another thread might modify  
the masked data
during the CAS operation and this might be lost.  I've never seen it  
in the real world though.

The implementation was originally copied from arm.

Dave
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On 17-Jul-14, at 4:44 AM, Guy Martin wrote:

> Reviewing HPPA 1.1 specs, I see that the FPU has 64bit registers.
> Can't we use those registers to perform 64bit atomic load and store ?
>
> As far as I can see, FLDDX and FSTDX should be able to do the job.
> Unless there is something I'm missing about the FPU :)

The main inefficiency is that one needs to copy a value through memory  
to
get a value in a general register into a floating point register,  
etc.  Probably,
for this technique, it would be most efficient to pass the values in  
floating
point registers.

Most people are running PA 2.0 machines now and these have 64-bit  
registers
and 64-bit loads and stores.  Problem is we don't have a proper 64-bit  
context
on these machines like hpux.  So, we don't save/restore everything on an
interruption.  However, it might be possible to use 64-bit operations  
in the region
where interrupts are disabled.  Note that interruptions are still  
possible in this
region but it might be we don't care about the values in this case.

Dave
--
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On Fri, Jul 18, 2014 at 6:12 PM, John David Anglin <dave.anglin@bell.net> wrote:
> There is no testing beyond the general testing of atomics in GCC.  There is
> masking
> in the GCC code but I think this is racy.  Another thread might modify the
> masked data
> during the CAS operation and this might be lost.  I've never seen it in the
> real world though.

The race is real IMO, but you're right that it might be hard to trigger.

My opinion is that the only way you can do this is to write new LWS
CAS variants that do half-word or byte loads, compares and stores. You
can't touch the surrounding data safely.

Cheers,
Carlos.
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On 18-Jul-14, at 8:38 PM, Carlos O'Donell wrote:

> On Fri, Jul 18, 2014 at 6:12 PM, John David Anglin <dave.anglin@bell.net 
> > wrote:
>> There is no testing beyond the general testing of atomics in GCC.   
>> There is
>> masking
>> in the GCC code but I think this is racy.  Another thread might  
>> modify the
>> masked data
>> during the CAS operation and this might be lost.  I've never seen  
>> it in the
>> real world though.
>
> The race is real IMO, but you're right that it might be hard to  
> trigger.
>
> My opinion is that the only way you can do this is to write new LWS
> CAS variants that do half-word or byte loads, compares and stores. You
> can't touch the surrounding data safely.

I totally agree.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Fri, Jul 18, 2014 at 5:03 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Fri, 2014-07-18 at 16:37 -0400, Nicholas Krause wrote:
>> The comment for size of frame not being needed is incorrect , the
>> function called needs this parameter.
>
> Actually, that's not correct.  The point of the FIXME is that fram_size
> is only used in a debug print and could be eliminated since the
> internals of the function excluding the debugging statements don't use
> it.
>
> James
>
>

So I need to need a patch removing the parameter from the  function
and this part of the code?
Cheers Nick
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On Fri, 2014-07-18 at 22:25 -0400, Nick Krause wrote:
> On Fri, Jul 18, 2014 at 5:03 PM, James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> > On Fri, 2014-07-18 at 16:37 -0400, Nicholas Krause wrote:
> >> The comment for size of frame not being needed is incorrect , the
> >> function called needs this parameter.
> >
> > Actually, that's not correct.  The point of the FIXME is that fram_size
> > is only used in a debug print and could be eliminated since the
> > internals of the function excluding the debugging statements don't use
> > it.
> >
> > James
> >
> >
> 
> So I need to need a patch removing the parameter from the  function
> and this part of the code?

Well, no, I'm not sure there's any action to take.  The FIXME reminds us
that there's no actual use of the frame size in the function body except
for the debugging prints.  The parameter could be removed if everyone
who debugs the kernel agrees either to remove the debug code or remove
the frame pointer from the prints, but it's probably not worth bothering
about, which is why it's still there.

James


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On Sat, Jul 19, 2014 at 1:20 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Fri, 2014-07-18 at 22:25 -0400, Nick Krause wrote:
>> On Fri, Jul 18, 2014 at 5:03 PM, James Bottomley
>> <James.Bottomley@hansenpartnership.com> wrote:
>> > On Fri, 2014-07-18 at 16:37 -0400, Nicholas Krause wrote:
>> >> The comment for size of frame not being needed is incorrect , the
>> >> function called needs this parameter.
>> >
>> > Actually, that's not correct.  The point of the FIXME is that fram_size
>> > is only used in a debug print and could be eliminated since the
>> > internals of the function excluding the debugging statements don't use
>> > it.
>> >
>> > James
>> >
>> >
>>
>> So I need to need a patch removing the parameter from the  function
>> and this part of the code?
>
> Well, no, I'm not sure there's any action to take.  The FIXME reminds us
> that there's no actual use of the frame size in the function body except
> for the debugging prints.  The parameter could be removed if everyone
> who debugs the kernel agrees either to remove the debug code or remove
> the frame pointer from the prints, but it's probably not worth bothering
> about, which is why it's still there.
>
> James
>
>
Ok then , seems its going through I can however write some comments to
explain this
if needed.
Cheers Nick
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From - Thu Nov 08 21:10:33 2018
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From: Himangi Saraogi <himangi774@gmail.com>
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alloc_bootmem and related function always return zeroed region of
memory. Thus a memset after calls to these functions is unnecessary.

The following Coccinelle semantic patch was used for making the change:

@@
expression E,E1;
@@

E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
... when != E
- memset(E,0,E1);

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
---
 arch/parisc/mm/init.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index ae085ad..0bef864 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -728,7 +728,6 @@ static void __init pagetable_init(void)
 #endif
 
 	empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
-	memset(empty_zero_page, 0, PAGE_SIZE);
 }
 
 static void __init gateway_init(void)
-- 
1.9.1

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From - Thu Nov 08 21:10:33 2018
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From: Nick Krause <xerofoify@gmail.com>
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Subject: processor.c: Fix me to rewrite init_percpu_pro
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Hey James
I am wondering how you would like this function.init_percpu_pro
in processor.c.
Cheers Nick
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From: John David Anglin <dave.anglin@bell.net>
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The sa_restorer field is obsolete and not in the hppa struct  
sigaction, but we still
define SA_RESTORER.  What should be done?

Dave
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Hi Dave,

> The sa_restorer field is obsolete and not in the hppa struct  
> sigaction, but we still define SA_RESTORER.  What should be done?

Basically to not break userspace we can't (and shouldn't) add the sa_restorer struct member.
So, the only option would be to drop the SA_RESTORER #define, right?
But I have no idea how and if this will break some builds, since the major arches seem to define SA_RESTORER...

Helge
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From: Richard Weinberger <richard@sigma-star.at>
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Subject: [PATCH 15/43] parisc: Use get_signal() signal_setup_done()
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From: Richard Weinberger <richard@nod.at>

Use the more generic functions get_signal() signal_setup_done()
for signal delivery.

Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/kernel/signal.c | 58 +++++++++++++++++++--------------------------
 1 file changed, 24 insertions(+), 34 deletions(-)

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 1cba8f2..012d4fa 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -227,8 +227,8 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, int in_sysc
 }
 
 static long
-setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
-	       sigset_t *set, struct pt_regs *regs, int in_syscall)
+setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs,
+	       int in_syscall)
 {
 	struct rt_sigframe __user *frame;
 	unsigned long rp, usp;
@@ -241,10 +241,10 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	
 	usp = (regs->gr[30] & ~(0x01UL));
 	/*FIXME: frame_size parameter is unused, remove it. */
-	frame = get_sigframe(ka, usp, sizeof(*frame));
+	frame = get_sigframe(&ksig->ka, usp, sizeof(*frame));
 
 	DBG(1,"SETUP_RT_FRAME: START\n");
-	DBG(1,"setup_rt_frame: frame %p info %p\n", frame, info);
+	DBG(1,"setup_rt_frame: frame %p info %p\n", frame, ksig->info);
 
 	
 #ifdef CONFIG_64BIT
@@ -253,7 +253,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	
 	if (is_compat_task()) {
 		DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &compat_frame->info);
-		err |= copy_siginfo_to_user32(&compat_frame->info, info);
+		err |= copy_siginfo_to_user32(&compat_frame->info, &ksig->info);
 		err |= __compat_save_altstack( &compat_frame->uc.uc_stack, regs->gr[30]);
 		DBG(1,"setup_rt_frame: frame->uc = 0x%p\n", &compat_frame->uc);
 		DBG(1,"setup_rt_frame: frame->uc.uc_mcontext = 0x%p\n", &compat_frame->uc.uc_mcontext);
@@ -265,7 +265,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 #endif
 	{	
 		DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &frame->info);
-		err |= copy_siginfo_to_user(&frame->info, info);
+		err |= copy_siginfo_to_user(&frame->info, &ksig->info);
 		err |= __save_altstack(&frame->uc.uc_stack, regs->gr[30]);
 		DBG(1,"setup_rt_frame: frame->uc = 0x%p\n", &frame->uc);
 		DBG(1,"setup_rt_frame: frame->uc.uc_mcontext = 0x%p\n", &frame->uc.uc_mcontext);
@@ -275,7 +275,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	}
 	
 	if (err)
-		goto give_sigsegv;
+		return -EFAULT;
 
 	/* Set up to return from userspace.  If provided, use a stub
 	   already in userspace. The first words of tramp are used to
@@ -312,9 +312,9 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	rp = (unsigned long) &frame->tramp[SIGRESTARTBLOCK_TRAMP];
 
 	if (err)
-		goto give_sigsegv;
+		return -EFAULT;
 
-	haddr = A(ka->sa.sa_handler);
+	haddr = A(ksig->ka.sa.sa_handler);
 	/* The sa_handler may be a pointer to a function descriptor */
 #ifdef CONFIG_64BIT
 	if (is_compat_task()) {
@@ -326,7 +326,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 			err = __copy_from_user(&fdesc, ufdesc, sizeof(fdesc));
 
 			if (err)
-				goto give_sigsegv;
+				return -EFAULT;
 
 			haddr = fdesc.addr;
 			regs->gr[19] = fdesc.gp;
@@ -339,7 +339,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 		err = __copy_from_user(&fdesc, ufdesc, sizeof(fdesc));
 		
 		if (err)
-			goto give_sigsegv;
+			return -EFAULT;
 		
 		haddr = fdesc.addr;
 		regs->gr[19] = fdesc.gp;
@@ -386,7 +386,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	}
 
 	regs->gr[2]  = rp;                /* userland return pointer */
-	regs->gr[26] = sig;               /* signal number */
+	regs->gr[26] = ksig->sig;               /* signal number */
 	
 #ifdef CONFIG_64BIT
 	if (is_compat_task()) {
@@ -410,11 +410,6 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	       current->comm, current->pid, frame, regs->gr[30],
 	       regs->iaoq[0], regs->iaoq[1], rp);
 
-	return 1;
-
-give_sigsegv:
-	DBG(1,"setup_rt_frame: sending SIGSEGV\n");
-	force_sigsegv(sig, current);
 	return 0;
 }
 
@@ -423,20 +418,19 @@ give_sigsegv:
  */	
 
 static void
-handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
-		struct pt_regs *regs, int in_syscall)
+handle_signal(struct ksignal *ksig, struct pt_regs *regs, int in_syscall)
 {
+	int ret;
 	sigset_t *oldset = sigmask_to_save();
+
 	DBG(1,"handle_signal: sig=%ld, ka=%p, info=%p, oldset=%p, regs=%p\n",
-	       sig, ka, info, oldset, regs);
+	       ksig->sig, ksig->ka, ksig->info, oldset, regs);
 	
 	/* Set up the stack frame */
-	if (!setup_rt_frame(sig, ka, info, oldset, regs, in_syscall))
-		return;
+	ret = setup_rt_frame(ksig, oldset, regs, in_syscall);
 
-	signal_delivered(sig, info, ka, regs, 
-		test_thread_flag(TIF_SINGLESTEP) ||
-		test_thread_flag(TIF_BLOCKSTEP));
+	signal_setup_done(ret, ksig, test_thread_flag(TIF_SINGLESTEP) ||
+			  test_thread_flag(TIF_BLOCKSTEP));
 
 	DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n",
 		regs->gr[28]);
@@ -544,22 +538,18 @@ insert_restart_trampoline(struct pt_regs *regs)
 asmlinkage void
 do_signal(struct pt_regs *regs, long in_syscall)
 {
-	siginfo_t info;
-	struct k_sigaction ka;
-	int signr;
+	struct ksignal ksig;
 
 	DBG(1,"\ndo_signal: regs=0x%p, sr7 %#lx, in_syscall=%d\n",
 	       regs, regs->sr[7], in_syscall);
 
-	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-	DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]); 
-	
-	if (signr > 0) {
+	if (get_signal(&ksig)) {
+		DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]);
 		/* Restart a system call if necessary. */
 		if (in_syscall)
-			syscall_restart(regs, &ka);
+			syscall_restart(regs, &ksig.ka);
 
-		handle_signal(signr, &info, &ka, regs, in_syscall);
+		handle_signal(&ksig, regs, in_syscall);
 		return;
 	}
 
-- 
1.8.4.5


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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: struct sigaction sa_restorer field
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On 7/21/2014 4:25 AM, Helge Deller wrote:
> Hi Dave,
>
>> The sa_restorer field is obsolete and not in the hppa struct
>> sigaction, but we still define SA_RESTORER.  What should be done?
> Basically to not break userspace we can't (and shouldn't) add the sa_restorer struct member.
> So, the only option would be to drop the SA_RESTORER #define, right?
> But I have no idea how and if this will break some builds, since the major arches seem to define SA_RESTORER...
>
I asked the question when I saw the crashme kernel test package didn't 
build due to the missing field.

In the generic sigaction struct, the field is conditional on the 
SA_RESTORER define.  I imagine that
the major arches also have sa_restorer struct member.

I agree it seems best to remove the define.

Dave

-- 
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> >> The sa_restorer field is obsolete and not in the hppa struct
> >> sigaction, but we still define SA_RESTORER.  What should be done?
> > Basically to not break userspace we can't (and shouldn't) add the sa_restorer struct member.
> > So, the only option would be to drop the SA_RESTORER #define, right?
> > But I have no idea how and if this will break some builds, since the major arches seem to define SA_RESTORER...
> >
> I asked the question when I saw the crashme kernel test package didn't 
> build due to the missing field.
> 
> In the generic sigaction struct, the field is conditional on the 
> SA_RESTORER define.  I imagine that
> the major arches also have sa_restorer struct member.
> 
> I agree it seems best to remove the define.

Ok, then can you send a patch ?
Should we request to backport it into stable kernels? I think so...

Helge
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The sa_restorer field in struct sigaction is obsolete and no longer in  
the parisc
implementation.  However, the core code assumes the field is present if
SA_RESTORER is defined.  So, the define needs to be removed.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
---



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diff --git a/arch/parisc/include/uapi/asm/signal.h b/arch/parisc/include/uapi/asm/signal.h
index a2fa2971..f5645d6 100644
--- a/arch/parisc/include/uapi/asm/signal.h
+++ b/arch/parisc/include/uapi/asm/signal.h
@@ -69,8 +69,6 @@
 #define SA_NOMASK	SA_NODEFER
 #define SA_ONESHOT	SA_RESETHAND
 
-#define SA_RESTORER	0x04000000 /* obsolete -- ignored */

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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: Compiling a 32bit kernel fails
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I've been trying to compile a 3.15.6 kernel but I did not managed to do=
=20
so with either gcc 4.7.3 or 4.8.3.


This is the error I get :

In file included from=20
/usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/spinlock.h:5:0,
                  from=20
/usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/atomic.h:20,
                  from include/linux/atomic.h:4,
                  from=20
/usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/bitops.h:11,
                  from include/linux/bitops.h:33,
                  from include/linux/kernel.h:10,
                  from=20
/usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/bug.h:4,
                  from include/linux/bug.h:4,
                  from include/linux/thread_info.h:11,
                  from include/asm-generic/preempt.h:4,
                  from arch/parisc/include/generated/asm/preempt.h:1,
                  from include/linux/preempt.h:18,
                  from include/linux/spinlock.h:50,
                  from include/linux/mmzone.h:7,
                  from include/linux/gfp.h:5,
                  from include/linux/slab.h:14,
                  from kernel/signal.c:13:
kernel/signal.c: In function =E2=80=98get_signal_to_deliver=E2=80=99:
/usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/ldcw.h:39:2:=20
error: can=E2=80=99t find a register in class =E2=80=98R1_REGS=E2=80=99=
 while reloading =E2=80=98asm=E2=80=99
   __asm__ __volatile__(__LDCW " 0(%2),%0"   \
   ^
/usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/spinlock.h:26:9:=20
note: in expansion of macro =E2=80=98__ldcw=E2=80=99
   while (__ldcw(a) =3D=3D 0)
          ^
/usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/ldcw.h:39:2:=20
error: =E2=80=98asm=E2=80=99 operand has impossible constraints
   __asm__ __volatile__(__LDCW " 0(%2),%0"   \
   ^
/usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/spinlock.h:26:9:=20
note: in expansion of macro =E2=80=98__ldcw=E2=80=99
   while (__ldcw(a) =3D=3D 0)
          ^

As far as I can tell, it looks familiar :
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D60925
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D35193


Is the fix to modify the LDCW macro or fix gcc ?

   Guy

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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Compiling a 32bit kernel fails
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On 24-Jul-14, at 7:39 AM, Guy Martin wrote:

>
>
> I've been trying to compile a 3.15.6 kernel but I did not managed to =
=20
> do so with either gcc 4.7.3 or 4.8.3.
>
>
> This is the error I get :
>
> In file included from /usr/src/linux-3.15.6-phoenix/arch/parisc/=20
> include/asm/spinlock.h:5:0,
>                 from /usr/src/linux-3.15.6-phoenix/arch/parisc/=20
> include/asm/atomic.h:20,
>                 from include/linux/atomic.h:4,
>                 from /usr/src/linux-3.15.6-phoenix/arch/parisc/=20
> include/asm/bitops.h:11,
>                 from include/linux/bitops.h:33,
>                 from include/linux/kernel.h:10,
>                 from /usr/src/linux-3.15.6-phoenix/arch/parisc/=20
> include/asm/bug.h:4,
>                 from include/linux/bug.h:4,
>                 from include/linux/thread_info.h:11,
>                 from include/asm-generic/preempt.h:4,
>                 from arch/parisc/include/generated/asm/preempt.h:1,
>                 from include/linux/preempt.h:18,
>                 from include/linux/spinlock.h:50,
>                 from include/linux/mmzone.h:7,
>                 from include/linux/gfp.h:5,
>                 from include/linux/slab.h:14,
>                 from kernel/signal.c:13:
> kernel/signal.c: In function =91get_signal_to_deliver=92:
> /usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/ldcw.h:39:2: =20
> error: can=92t find a register in class =91R1_REGS=92 while reloading=
 =91asm=92
>  __asm__ __volatile__(__LDCW " 0(%2),%0"   \
>  ^
> /usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/spinlock.h:=20
> 26:9: note: in expansion of macro =91__ldcw=92
>  while (__ldcw(a) =3D=3D 0)
>         ^
> /usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/ldcw.h:39:2: =20
> error: =91asm=92 operand has impossible constraints
>  __asm__ __volatile__(__LDCW " 0(%2),%0"   \
>  ^
> /usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/spinlock.h:=20
> 26:9: note: in expansion of macro =91__ldcw=92
>  while (__ldcw(a) =3D=3D 0)
>         ^
>
> As far as I can tell, it looks familiar :
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D60925
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D35193
>
>
> Is the fix to modify the LDCW macro or fix gcc ?


There's not enough info to tell.  In general, arguments in an asm =20
can't overlap in register usage with
registers listed in the clobber list.  Because r1 may be needed to =20
reload an argument, the error can
occur as a result of optimization, etc.  In that case, the macro would =
=20
need fixing.

It would be helpful to see preprocessed source and full compile command=
=2E

Dave
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John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:10:34 2018
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Hi JDA,


On 2014-07-24 15:19, John David Anglin wrote:
> On 24-Jul-14, at 7:39 AM, Guy Martin wrote:
>> Is the fix to modify the LDCW macro or fix gcc ?
>=20
>=20
> There's not enough info to tell.  In general, arguments in an asm
> can't overlap in register usage with
> registers listed in the clobber list.  Because r1 may be needed to
> reload an argument, the error can
> occur as a result of optimization, etc.  In that case, the macro woul=
d
>  need fixing.
>=20
> It would be helpful to see preprocessed source and full compile=20
> command.


This is the command being ran :

gcc -Wp,-MD,kernel/.signal.o.d  -nostdinc -isystem=20
/usr/lib/gcc/hppa2.0-unknown-linux-gnu/4.8.3/include=20
-I/usr/src/linux-3.15.6-phoenix/arch/parisc/include=20
-Iarch/parisc/include/generated  -Iinclude=20
-I/usr/src/linux-3.15.6-phoenix/arch/parisc/include/uapi=20
-Iarch/parisc/include/generated/uapi=20
-I/usr/src/linux-3.15.6-phoenix/include/uapi -Iinclude/generated/uapi=20
-include /usr/src/linux-3.15.6-phoenix/include/linux/kconfig.h=20
-D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs=20
-fno-strict-aliasing -fno-common -Werror-implicit-function-declaration=20
-Wno-format-security -fno-delete-null-pointer-checks -O2 -pipe=20
-mno-space-regs -mfast-indirect-calls -mdisable-fpregs=20
-ffunction-sections -march=3D2.0 -mschedule=3D8000 -Wframe-larger-than=3D=
1024=20
-fno-stack-protector -Wno-unused-but-set-variable=20
-fno-omit-frame-pointer -fno-optimize-sibling-calls=20
-Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow=20
-fconserve-stack -Werror=3Dimplicit-int -Werror=3Dstrict-prototypes=20
-DCC_HAVE_ASM_GOTO    -D"KBUILD_STR(s)=3D#s"=20
-D"KBUILD_BASENAME=3DKBUILD_STR(signal)" =20
-D"KBUILD_MODNAME=3DKBUILD_STR(signal)" -c -o kernel/signal.o=20
kernel/signal.c

The preprocessed sources are here :
http://bpaste.net/show/498190/

The full config here :
http://bpaste.net/show/498196/


The error is still this :

kernel/signal.c: In function =E2=80=98get_signal_to_deliver=E2=80=99:
/usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/ldcw.h:39:2:=20
error: can=E2=80=99t find a register in class =E2=80=98R1_REGS=E2=80=99=
 while reloading =E2=80=98asm=E2=80=99
   __asm__ __volatile__(__LDCW " 0(%2),%0"   \
   ^
/usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/spinlock.h:26:9:=20
note: in expansion of macro =E2=80=98__ldcw=E2=80=99
   while (__ldcw(a) =3D=3D 0)
          ^
/usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/ldcw.h:39:2:=20
error: =E2=80=98asm=E2=80=99 operand has impossible constraints
   __asm__ __volatile__(__LDCW " 0(%2),%0"   \
   ^
/usr/src/linux-3.15.6-phoenix/arch/parisc/include/asm/spinlock.h:26:9:=20
note: in expansion of macro =E2=80=98__ldcw=E2=80=99
   while (__ldcw(a) =3D=3D 0)



I tried to play a bit with the __ldcw macro but I still couldn't get it=
=20
to compile.


Regards,
   Guy

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Hi Linus,

please pull the latest parisc architecture fixes for kernel 3.16 from 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.16-6

We have two trivial patches in here. One removes the SA_RESTORER #define since
on parisc we don't have the sa_restorer field in struct sigaction, the other
patch removes an unnecessary memset(). The SA_RESTORER removal patch is
scheduled for stable trees, since without it some userspace apps don't build.
 
Thanks,
Helge

----------------------------------------------------------------
HIMANGI SARAOGI (1):
      parisc: Eliminate memset after alloc_bootmem_pages

John David Anglin (1):
      parisc: Remove SA_RESTORER define

 arch/parisc/include/uapi/asm/signal.h | 2 --
 arch/parisc/mm/init.c                 | 1 -
 2 files changed, 3 deletions(-)
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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [RFC PATCHv2] 64bit LWS CAS
Date: Tue, 29 Jul 2014 21:13:34 +0200
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Hi all,

Following the discussion about broken CAS for size != 4, I took a new 
approach and implemented in a different way.

The new ABI takes the oldval, newval and mem as pointers plus a size 
parameter. This means that a single LWS can now handle all types of 
variable size.
Note that the 32bit CAS for 64bit size has not been tested (not even
compiled) since I can't compile a 32bit kernel a the moment.


My approach for 64bit CAS on 32bit is be the following :
  - Load old into 2 registers
  - Compare low and high part and bail out if different
  - Load new into a FPU register
  - Store the content of the FPU register to the memory

The point here being to do the store in the last step in a single 
instruction.
I think the same approach can be used for 128bit CAS as well but I
don't think it's needed at the moment.


Regading the GCC counterpart of the implementation, I'm not sure about 
the way to proceed.

Should I try to detect the presence of the new LWS and use it for all 
CAS operations at init time ?

So far I only used the new LWS for 64bit CAS.
I guess that using the new LWS unconditionally for all CAS operations 
isn't an option since it will break for newer gcc on old kernels.


Regards,
   Guy



--MP_/mSAcROvYiRceeOw_I3WU0V/
Content-Type: text/x-patch
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename=gcc-64bit-atomic-cas2.patch

--- libgcc/config/pa/linux-atomic.c	2011-11-02 15:23:48.000000000 +0000
+++ /root/gcc-trunk/libgcc/config/pa/linux-atomic.c	2014-07-29 16:05:21.932078161 +0000
@@ -1,5 +1,5 @@
 /* Linux-specific atomic operations for PA Linux.
-   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+   Copyright (C) 2008-2014 Free Software Foundation, Inc.
    Based on code contributed by CodeSourcery for ARM EABI Linux.
    Modifications for PA Linux by Helge Deller <deller@gmx.de>
 
@@ -75,6 +75,31 @@
   return lws_errno;
 }
 
+static inline long
+__kernel_cmpxchg2 (void * oldval, void * newval, void *mem, int val_size)
+{
+
+  register unsigned long lws_mem asm("r26") = (unsigned long) (mem);
+  register long lws_ret   asm("r28");
+  register long lws_errno asm("r21");
+  register unsigned long lws_old asm("r25") = (unsigned long) oldval;
+  register unsigned long lws_new asm("r24") = (unsigned long) newval;
+  register int lws_size asm("r23") = val_size;
+  asm volatile (	"ble	0xb0(%%sr2, %%r0)	\n\t"
+			"ldi	%2, %%r20		\n\t"
+	: "=r" (lws_ret), "=r" (lws_errno)
+	: "i" (2), "r" (lws_mem), "r" (lws_old), "r" (lws_new), "r" (lws_size)
+	: "r1", "r20", "r22", "r29", "r31", "fr4", "memory"
+  );
+  if (__builtin_expect (lws_errno == -EFAULT || lws_errno == -ENOSYS, 0))
+    ABORT_INSTRUCTION;
+
+  /* If the kernel LWS call fails, retrun EBUSY */
+  if (!lws_errno && lws_ret)
+    lws_errno = -EBUSY;
+
+  return lws_errno;
+}
 #define HIDDEN __attribute__ ((visibility ("hidden")))
 
 /* Big endian masks  */
@@ -84,6 +109,29 @@
 #define MASK_1 0xffu
 #define MASK_2 0xffffu
 
+#define FETCH_AND_OP_DWORD(OP, PFX_OP, INF_OP)					\
+  long long HIDDEN								\
+  __sync_fetch_and_##OP##_8 (long long *ptr, long long val)			\
+  {										\
+    long long tmp, newval;							\
+    int failure;								\
+										\
+    do {									\
+      tmp = *ptr;								\
+      newval = PFX_OP (tmp INF_OP val);						\
+      failure = __kernel_cmpxchg2 (&tmp, &newval, ptr, 3);			\
+    } while (failure != 0);							\
+										\
+    return tmp;									\
+  }
+
+FETCH_AND_OP_DWORD (add,   , +)
+FETCH_AND_OP_DWORD (sub,   , -)
+FETCH_AND_OP_DWORD (or,    , |)
+FETCH_AND_OP_DWORD (and,   , &)
+FETCH_AND_OP_DWORD (xor,   , ^)
+FETCH_AND_OP_DWORD (nand, ~, &)
+
 #define FETCH_AND_OP_WORD(OP, PFX_OP, INF_OP)				\
   int HIDDEN								\
   __sync_fetch_and_##OP##_4 (int *ptr, int val)				\
@@ -147,6 +195,29 @@
 SUBWORD_SYNC_OP (xor,   , ^, unsigned char, 1, oldval)
 SUBWORD_SYNC_OP (nand, ~, &, unsigned char, 1, oldval)
 
+#define OP_AND_FETCH_DWORD(OP, PFX_OP, INF_OP)					\
+  long long HIDDEN								\
+  __sync_##OP##_and_fetch_8 (long long *ptr, long long val)			\
+  {										\
+    long long tmp, newval;							\
+    int failure;								\
+										\
+    do {									\
+      tmp = *ptr;								\
+      newval = PFX_OP (tmp INF_OP val);						\
+      failure = __kernel_cmpxchg2 (&tmp, &newval, ptr, 3);			\
+    } while (failure != 0);							\
+										\
+    return PFX_OP (tmp INF_OP val);						\
+  }
+
+OP_AND_FETCH_DWORD (add,   , +)
+OP_AND_FETCH_DWORD (sub,   , -)
+OP_AND_FETCH_DWORD (or,    , |)
+OP_AND_FETCH_DWORD (and,   , &)
+OP_AND_FETCH_DWORD (xor,   , ^)
+OP_AND_FETCH_DWORD (nand, ~, &)
+
 #define OP_AND_FETCH_WORD(OP, PFX_OP, INF_OP)				\
   int HIDDEN								\
   __sync_##OP##_and_fetch_4 (int *ptr, int val)				\
@@ -182,6 +253,26 @@
 SUBWORD_SYNC_OP (xor,   , ^, unsigned char, 1, newval)
 SUBWORD_SYNC_OP (nand, ~, &, unsigned char, 1, newval)
 
+long long HIDDEN
+__sync_val_compare_and_swap_8 (long long *ptr, long long oldval, long long newval)
+{
+  long long actual_oldval;
+  int fail;
+    
+  while (1)
+    {
+      actual_oldval = *ptr;
+
+      if (__builtin_expect (oldval != actual_oldval, 0))
+	return actual_oldval;
+
+      fail = __kernel_cmpxchg2 (&actual_oldval, &newval, ptr, 3);
+  
+      if (__builtin_expect (!fail, 1))
+	return actual_oldval;
+    }
+}
+
 int HIDDEN
 __sync_val_compare_and_swap_4 (int *ptr, int oldval, int newval)
 {
@@ -256,6 +347,20 @@
 SUBWORD_BOOL_CAS (unsigned short, 2)
 SUBWORD_BOOL_CAS (unsigned char,  1)
 
+long long HIDDEN
+__sync_lock_test_and_set_8 (long long *ptr, long long val)
+{
+  long long oldval;
+  int failure;
+
+  do {
+    oldval = *ptr;
+    failure = __kernel_cmpxchg2 (&oldval, &val, ptr, 3);
+  } while (failure != 0);
+
+  return oldval;
+}
+
 int HIDDEN
 __sync_lock_test_and_set_4 (int *ptr, int val)
 {
@@ -293,13 +398,45 @@
 SUBWORD_TEST_AND_SET (unsigned short, 2)
 SUBWORD_TEST_AND_SET (unsigned char,  1)
 
+void HIDDEN
+__sync_lock_release_8 (int *ptr)
+{
+  long long failure, oldval, zero = 0;
+
+  do {
+    oldval = *ptr;
+    failure = __kernel_cmpxchg2 (&oldval, &zero, ptr, 3);
+  } while (failure != 0);
+}
+
+void HIDDEN
+__sync_lock_release_4 (int *ptr)
+{
+  int failure, oldval;
+
+  do {
+    oldval = *ptr;
+    failure = __kernel_cmpxchg (oldval, 0, ptr);
+  } while (failure != 0);
+}
+
 #define SYNC_LOCK_RELEASE(TYPE, WIDTH)					\
   void HIDDEN								\
   __sync_lock_release_##WIDTH (TYPE *ptr)				\
   {									\
-    *ptr = 0;								\
+    int failure;							\
+    unsigned int oldval, newval, shift, mask;				\
+    int *wordptr = (int *) ((unsigned long) ptr & ~3);			\
+									\
+    shift = (((unsigned long) ptr & 3) << 3) ^ INVERT_MASK_##WIDTH;	\
+    mask = MASK_##WIDTH << shift;					\
+									\
+    do {								\
+      oldval = *wordptr;						\
+      newval = oldval & ~mask;						\
+      failure = __kernel_cmpxchg (oldval, newval, wordptr);		\
+    } while (failure != 0);						\
   }
 
-SYNC_LOCK_RELEASE (int,   4)
 SYNC_LOCK_RELEASE (short, 2)
 SYNC_LOCK_RELEASE (char,  1)

--MP_/mSAcROvYiRceeOw_I3WU0V/
Content-Type: text/x-patch
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename=linux-hppa-atomic-cas2.patch

--- arch/parisc/kernel/syscall.S.orig	2014-06-08 20:19:54.000000000 +0200
+++ arch/parisc/kernel/syscall.S	2014-07-25 23:45:10.544853275 +0200
@@ -74,7 +74,7 @@
 	/* ADDRESS 0xb0 to 0xb8, lws uses two insns for entry */
 	/* Light-weight-syscall entry must always be located at 0xb0 */
 	/* WARNING: Keep this number updated with table size changes */
-#define __NR_lws_entries (2)
+#define __NR_lws_entries (3)
 
 lws_entry:
 	gate	lws_start, %r0		/* increase privilege */
@@ -502,7 +502,7 @@
 
 	
 	/***************************************************
-		Implementing CAS as an atomic operation:
+		Implementing 32bit CAS as an atomic operation:
 
 		%r26 - Address to examine
 		%r25 - Old value to check (old)
@@ -658,6 +658,274 @@
 	ASM_EXCEPTIONTABLE_ENTRY(1b-linux_gateway_page, 3b-linux_gateway_page)
 	ASM_EXCEPTIONTABLE_ENTRY(2b-linux_gateway_page, 3b-linux_gateway_page)
 
+	
+	/***************************************************
+		New CAS implementation which uses pointers and variable size information.
+		The value pointed by old and new MUST NOT change while performing CAS.
+		The lock only protect the value at %r26.
+
+		%r26 - Address to examine
+		%r25 - Pointer to the value to check (old)
+		%r24 - Pointer to the value to set (new)
+		%r23 - Size of the variable (8bit = 0, 16bit = 1, 32bit = 2, 64bit = 4)
+		%r28 - Return non-zero on failure
+		%r21 - Kernel error code
+
+		If debugging is DISabled:
+
+		%r21 has the following meanings:
+
+		EAGAIN - CAS is busy, ldcw failed, try again.
+		EFAULT - Read or write failed.		
+
+		If debugging is enabled:
+
+		EDEADLOCK - CAS called recursively.
+		EAGAIN && r28 == 1 - CAS is busy. Lock contended.
+		EAGAIN && r28 == 2 - CAS is busy. ldcw failed.
+		EFAULT - Read or write failed.
+
+		Scratch: r20, r22, r28, r29, r1, fr4 (32bit for 64bit CAS only)
+
+	****************************************************/
+
+	/* ELF32 Process entry path */
+lws_compare_and_swap_2:
+#ifdef CONFIG_64BIT
+	/* Clip the input registers */
+	depdi	0, 31, 32, %r26
+	depdi	0, 31, 32, %r25
+	depdi	0, 31, 32, %r24
+	depdi	0, 31, 32, %r23
+#endif
+
+	/* Check the validity of the size pointer */
+	subi,>>= 4, %r23, %r0
+	b,n	lws_exit_nosys
+
+	/* Jump to the functions which will load the old and new values into
+	   registers depending on the their size */
+	shlw	%r23, 2, %r29
+	blr	%r29, %r0
+	nop
+
+	/* 8bit load */
+4:	ldb	0(%sr3,%r25), %r25
+	b	cas2_lock_start
+5:	ldb	0(%sr3,%r24), %r24
+	nop
+	nop
+	nop
+	nop
+	nop
+
+	/* 16bit load */
+6:	ldh	0(%sr3,%r25), %r25
+	b	cas2_lock_start
+7:	ldh	0(%sr3,%r24), %r24
+	nop
+	nop
+	nop
+	nop
+	nop
+
+	/* 32bit load */
+8:	ldw	0(%sr3,%r25), %r25
+	b	cas2_lock_start
+9:	ldw	0(%sr3,%r24), %r24
+	nop
+	nop
+	nop
+	nop
+	nop
+
+	/* 64bit load */
+#ifdef CONFIG_64BIT
+10:	ldd	0(%sr3,%r25), %r25
+11:	ldd	0(%sr3,%r24), %r24
+#else
+	/* Load new value into r22/r23 - high/low */
+10:	ldw	0(%sr3,%r25), %r22
+11:	ldw	4(%sr3,%r25), %r23
+#endif
+
+cas2_lock_start:
+	/* Load start of lock table */
+	ldil	L%lws_lock_start, %r20
+	ldo	R%lws_lock_start(%r20), %r28
+
+	/* Extract four bits from r26 and hash lock (Bits 4-7) */
+	extru  %r26, 27, 4, %r20
+
+	/* Find lock to use, the hash is either one of 0 to
+	   15, multiplied by 16 (keep it 16-byte aligned)
+	   and add to the lock table offset. */
+	shlw	%r20, 4, %r20
+	add	%r20, %r28, %r20
+
+# if ENABLE_LWS_DEBUG
+	/*	
+		DEBUG, check for deadlock! 
+		If the thread register values are the same
+		then we were the one that locked it last and
+		this is a recurisve call that will deadlock.
+		We *must* giveup this call and fail.
+	*/
+	ldw	4(%sr2,%r20), %r28			/* Load thread register */
+	/* WARNING: If cr27 cycles to the same value we have problems */
+	mfctl	%cr27, %r21				/* Get current thread register */
+	cmpb,<>,n	%r21, %r28, cas2_lock	/* Called recursive? */
+	b	lws_exit				/* Return error! */
+	ldo	-EDEADLOCK(%r0), %r21
+cas2_lock:
+	cmpb,=,n	%r0, %r28, cas2_nocontend /* Is nobody using it? */
+	ldo	1(%r0), %r28				/* 1st case */
+	b	lws_exit				/* Contended... */
+	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
+cas2_nocontend:
+# endif
+/* ENABLE_LWS_DEBUG */
+
+	rsm	PSW_SM_I, %r0				/* Disable interrupts */
+	/* COW breaks can cause contention on UP systems */
+	LDCW	0(%sr2,%r20), %r28			/* Try to acquire the lock */
+	cmpb,<>,n	%r0, %r28, cas2_action	/* Did we get it? */
+cas2_wouldblock:
+	ldo	2(%r0), %r28				/* 2nd case */
+	ssm	PSW_SM_I, %r0
+	b	lws_exit				/* Contended... */
+	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
+
+	/*
+		prev = *addr;
+		if ( prev == old )
+		  *addr = new;
+		return prev;
+	*/
+
+	/* NOTES:
+		This all works becuse intr_do_signal
+		and schedule both check the return iasq
+		and see that we are on the kernel page
+		so this process is never scheduled off
+		or is ever sent any signal of any sort,
+		thus it is wholly atomic from usrspaces
+		perspective
+	*/
+cas2_action:
+#if defined CONFIG_SMP && ENABLE_LWS_DEBUG
+	/* DEBUG */
+	mfctl	%cr27, %r1
+	stw	%r1, 4(%sr2,%r20)
+#endif
+
+	/* Jump to the correct function */
+	blr	%r29, %r0
+	/* Set %r28 as non-zero for now */
+	ldo	1(%r0),%r28
+
+	/* 8bit CAS */
+12:	ldb,ma	0(%sr3,%r26), %r29
+	sub,=	%r29, %r25, %r0
+	b,n	cas2_end
+13:	stb,ma	%r24, 0(%sr3,%r26)
+	b	cas2_end
+	copy	%r0, %r28
+	nop
+	nop
+
+	/* 16bit CAS */
+14:	ldh,ma	0(%sr3,%r26), %r29
+	sub,=	%r29, %r25, %r0
+	b,n	cas2_end
+15:	sth,ma	%r24, 0(%sr3,%r26)
+	b	cas2_end
+	copy	%r0, %r28
+	nop
+	nop
+
+	/* 32bit CAS */
+16:	ldw,ma	0(%sr3,%r26), %r29
+	sub,=	%r29, %r25, %r0
+	b,n	cas2_end
+17:	stw,ma	%r24, 0(%sr3,%r26)
+	b	cas2_end
+	copy	%r0, %r28
+	nop
+	nop
+
+	/* 64bit CAS */
+#ifdef CONFIG_64BIT
+18:	ldd,ma	0(%sr3,%r26), %r29
+	sub,=	%r29, %r25, %r0
+	b,n	cas2_end
+19:	std,ma	%r24, 0(%sr3,%r26)
+	copy	%r0, %r28
+#else
+	/* Compare first word */
+18:	ldd,ma	0(%sr3,%r26), %r29
+	sub,=	%r29, %r22, %r0
+	b,n	cas2_end
+	/* Compare second word */
+19:	ldd,ma	4(%sr3,%r26), %r29
+	sub,=	%r29, %r23, %r0
+	b,n	cas2_end
+	/* Performe the store */
+20:	flddx	0(%sr3,%r24), %fr4
+21:	fstdx	%fr4, 0(%sr3,%r26)
+	copy	%r0, %r28
+#endif
+
+cas2_end:
+	/* Free lock */
+	stw,ma	%r20, 0(%sr2,%r20)
+#if ENABLE_LWS_DEBUG
+	/* Clear thread register indicator */
+	stw	%r0, 4(%sr2,%r20)
+#endif
+	/* Enable interrupts */
+	ssm	PSW_SM_I, %r0
+	/* Return to userspace, set no error */
+	b	lws_exit
+	copy	%r0, %r21
+
+22:		
+	/* Error occurred on load or store */
+	/* Free lock */
+	stw	%r20, 0(%sr2,%r20)
+#if ENABLE_LWS_DEBUG
+	stw	%r0, 4(%sr2,%r20)
+#endif
+	ssm	PSW_SM_I, %r0
+	ldo	1(%r0),%r28
+	b	lws_exit
+	ldo	-EFAULT(%r0),%r21	/* set errno */
+	nop
+	nop
+	nop
+
+	/* Exception table entries, for the load and store, return EFAULT.
+	   Each of the entries must be relocated. */
+	ASM_EXCEPTIONTABLE_ENTRY(4b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(5b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(6b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(7b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(8b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(9b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(10b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(11b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(12b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(13b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(14b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(15b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(16b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(17b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(18b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(19b-linux_gateway_page, 22b-linux_gateway_page)
+#ifndef CONFIG_64BIT
+	ASM_EXCEPTIONTABLE_ENTRY(20b-linux_gateway_page, 22b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(21b-linux_gateway_page, 22b-linux_gateway_page)
+#endif
 
 	/* Make sure nothing else is placed on this page */
 	.align PAGE_SIZE
@@ -675,8 +943,9 @@
 	/* Light-weight-syscall table */
 	/* Start of lws table. */
 ENTRY(lws_table)
-	LWS_ENTRY(compare_and_swap32)	/* 0 - ELF32 Atomic compare and swap */
-	LWS_ENTRY(compare_and_swap64)	/* 1 - ELF64 Atomic compare and swap */
+	LWS_ENTRY(compare_and_swap32)		/* 0 - ELF32 Atomic 32bit compare and swap */
+	LWS_ENTRY(compare_and_swap64)		/* 1 - ELF64 Atomic 32bit compare and swap */
+	LWS_ENTRY(compare_and_swap_2)		/* 2 - ELF32 Atomic 64bit compare and swap */
 END(lws_table)
 	/* End of lws table */
 

--MP_/mSAcROvYiRceeOw_I3WU0V/--

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From - Thu Nov 08 21:10:34 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [RFC PATCHv2] 64bit LWS CAS
Date: Tue, 29 Jul 2014 23:24:11 +0200
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Hi Guy,

Very nice work !

On 07/29/2014 09:13 PM, Guy Martin wrote:
> Following the discussion about broken CAS for size != 4, I took a new 
> approach and implemented in a different way.
> 
> The new ABI takes the oldval, newval and mem as pointers plus a size 
> parameter. This means that a single LWS can now handle all types of 
> variable size.
> Note that the 32bit CAS for 64bit size has not been tested (not even
> compiled) since I can't compile a 32bit kernel a the moment.

I compile-tested it...(but didn't runtime tested it yet):

  AS      arch/parisc/kernel/syscall.o
/home/cvs/LINUX/git-kernel/linux-2.6/arch/parisc/kernel/syscall.S: Assembler messages:
/home/cvs/LINUX/git-kernel/linux-2.6/arch/parisc/kernel/syscall.S:866: Error: Invalid operands 
/home/cvs/LINUX/git-kernel/linux-2.6/arch/parisc/kernel/syscall.S:870: Error: Invalid operands 

Line 866 is the jump label 18:
18:     ldd,ma  0(%sr3,%r26), %r29

Line 870 is 19:
19:     ldd,ma  4(%sr3,%r26), %r29

I think both should be ldw ?

An idea:
Maybe the config option CONFIG_PA8X00 (which enables -march=2.0) can be used in
some places to use the 64bit assembler even on 32bit kernel (instead of using CONFIG_64BIT) ?

> My approach for 64bit CAS on 32bit is be the following :
>   - Load old into 2 registers
>   - Compare low and high part and bail out if different
>   - Load new into a FPU register
>   - Store the content of the FPU register to the memory
> 
> The point here being to do the store in the last step in a single 
> instruction.
> I think the same approach can be used for 128bit CAS as well but I
> don't think it's needed at the moment.

Since the 64bit CAS on 32bit currently uses 9 asms, it can't be added as is right now anyway.
Maybe it makes sense to pull out the "flddx 0(%sr3,%r24), %fr4" from this content and to preload
it to where you set up r22/r23-high/low ?

> Regading the GCC counterpart of the implementation, I'm not sure about 
> the way to proceed.
> 
> Should I try to detect the presence of the new LWS and use it for all 
> CAS operations at init time ?

I leave this up to Dave & Carlos to answer. 

> So far I only used the new LWS for 64bit CAS.

+       /***************************************************
+               New CAS implementation which uses pointers and variable size information.
+               The value pointed by old and new MUST NOT change while performing CAS.
+               The lock only protect the value at %r26.
+
+               %r26 - Address to examine
+               %r25 - Pointer to the value to check (old)
+               %r24 - Pointer to the value to set (new)
+               %r23 - Size of the variable (8bit = 0, 16bit = 1, 32bit = 2, 64bit = 4)

Since you shift %r23 in your code, I think the comment above is wrong for 64bit which should be 3 instead of 4 ?

You use nop's in your code to align to 32 bytes to be able to jump.
Does it make sense to use .align 32 instead ? I'm not sure myself about that...

Should we maybe drop the whole ENABLE_LWS_DEBUG thing? Was it ever used/enabled?

> I guess that using the new LWS unconditionally for all CAS operations 
> isn't an option since it will break for newer gcc on old kernels.

Up to now we only had the 32bit CAS working correctly, so we shouldn't care much
about the other CAS anyway. 
And if we get it backported into all relevant kernels before we change gcc
I would prefer this hard break...

Helge
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From - Thu Nov 08 21:10:34 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: Re: [RFC PATCHv2] 64bit LWS CAS
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Hi Helge,

On 2014-07-29 23:24, Helge Deller wrote:
> Hi Guy,
> 
> Very nice work !

Thanks !

> I compile-tested it...(but didn't runtime tested it yet):

I have attached the small test program I use to test the LWS outside gcc 
for easy testing.

Moreover, the gcc patch I attached previously is not the right one. It 
also contained JDA's changes.
I have attached a patch that applies against gcc's trunk.

>   AS      arch/parisc/kernel/syscall.o
> /home/cvs/LINUX/git-kernel/linux-2.6/arch/parisc/kernel/syscall.S:
> Assembler messages:
> /home/cvs/LINUX/git-kernel/linux-2.6/arch/parisc/kernel/syscall.S:866:
> Error: Invalid operands
> /home/cvs/LINUX/git-kernel/linux-2.6/arch/parisc/kernel/syscall.S:870:
> Error: Invalid operands
> 
> Line 866 is the jump label 18:
> 18:     ldd,ma  0(%sr3,%r26), %r29
> 
> Line 870 is 19:
> 19:     ldd,ma  4(%sr3,%r26), %r29
> 
> I think both should be ldw ?


Indeed, fixed in the new patch attached.


> An idea:
> Maybe the config option CONFIG_PA8X00 (which enables -march=2.0) can be 
> used in
> some places to use the 64bit assembler even on 32bit kernel (instead
> of using CONFIG_64BIT) ?

Indeed, this is definitely a good idea. But it should probably be a 
separate patch since we need to touch the existing code to enable wide 
mode when entering the LWS.

> 
>> My approach for 64bit CAS on 32bit is be the following :
>>   - Load old into 2 registers
>>   - Compare low and high part and bail out if different
>>   - Load new into a FPU register
>>   - Store the content of the FPU register to the memory
>> 
>> The point here being to do the store in the last step in a single
>> instruction.
>> I think the same approach can be used for 128bit CAS as well but I
>> don't think it's needed at the moment.
> 
> Since the 64bit CAS on 32bit currently uses 9 asms, it can't be added
> as is right now anyway.
> Maybe it makes sense to pull out the "flddx 0(%sr3,%r24), %fr4" from
> this content and to preload
> it to where you set up r22/r23-high/low ?

Good point, I changed that too. However, having 9 asm isns shouldn't be 
a problem there because we won't jump past that.


>> Regading the GCC counterpart of the implementation, I'm not sure about
>> the way to proceed.
>> 
>> Should I try to detect the presence of the new LWS and use it for all
>> CAS operations at init time ?
> 
> I leave this up to Dave & Carlos to answer.
> 
>> So far I only used the new LWS for 64bit CAS.
> 
> +       /***************************************************
> +               New CAS implementation which uses pointers and
> variable size information.
> +               The value pointed by old and new MUST NOT change while
> performing CAS.
> +               The lock only protect the value at %r26.
> +
> +               %r26 - Address to examine
> +               %r25 - Pointer to the value to check (old)
> +               %r24 - Pointer to the value to set (new)
> +               %r23 - Size of the variable (8bit = 0, 16bit = 1,
> 32bit = 2, 64bit = 4)
> 
> Since you shift %r23 in your code, I think the comment above is wrong
> for 64bit which should be 3 instead of 4 ?

Fixed.

> You use nop's in your code to align to 32 bytes to be able to jump.
> Does it make sense to use .align 32 instead ? I'm not sure myself about 
> that...

I don't know either, nop seemed like the easiest and cleanest way to do 
so for me.

> Should we maybe drop the whole ENABLE_LWS_DEBUG thing? Was it ever 
> used/enabled?

Indeed, I have not tested it and I dropped it in this new patch.

>> I guess that using the new LWS unconditionally for all CAS operations
>> isn't an option since it will break for newer gcc on old kernels.
> 
> Up to now we only had the 32bit CAS working correctly, so we shouldn't 
> care much
> about the other CAS anyway.
> And if we get it backported into all relevant kernels before we change 
> gcc
> I would prefer this hard break...


32bit CAS works but as far as I understand, 8 and 16 bit is broken since 
the stw in the current LWS will overwrite 3 and 2 bytes of memory 
respectively with zeros.
So IMHO this should definitely be changed.

   Guy



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From - Thu Nov 08 21:10:34 2018
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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [RFC PATCHv2] 64bit LWS CAS
Date: Wed, 30 Jul 2014 11:45:45 +0200
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Even better with all the files attached ....

   Guy
--=_afd20038a3984b2c7bb561ddc8ae978d
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X-Mozilla-Keys:                                                                                 
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We allocate "len" number of chars so we should put the NUL at "len - 1"
to avoid corrupting memory.  Btw, strlen_user() is different from the
normal strlen() function because it includes NUL terminator in the
count.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/arch/parisc/hpux/sys_hpux.c b/arch/parisc/hpux/sys_hpux.c
index d9dc6cd..e5c4da0 100644
--- a/arch/parisc/hpux/sys_hpux.c
+++ b/arch/parisc/hpux/sys_hpux.c
@@ -456,7 +456,7 @@ int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
 		}
 
 		/* String could be altered by userspace after strlen_user() */
-		fsname[len] = '\0';
+		fsname[len - 1] = '\0';
 
 		printk(KERN_DEBUG "that is '%s' as (char *)\n", fsname);
 		if ( !strcmp(fsname, "hfs") ) {
--
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From - Thu Nov 08 21:10:34 2018
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From: Hans Wennborg <hans@hanshq.net>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 13/19] drivers: parisc: fix %d confusingly prefixed with 0x in format string
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Signed-off-by: Hans Wennborg <hans@hanshq.net>
---
 drivers/parisc/dino.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 9eae983..a0580af 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -913,7 +913,7 @@ static int __init dino_probe(struct parisc_device *dev)
 	printk("%s version %s found at 0x%lx\n", name, version, hpa);
 
 	if (!request_mem_region(hpa, PAGE_SIZE, name)) {
-		printk(KERN_ERR "DINO: Hey! Someone took my MMIO space (0x%ld)!\n",
+		printk(KERN_ERR "DINO: Hey! Someone took my MMIO space (0x%lx)!\n",
 			hpa);
 		return 1;
 	}
-- 
2.0.0.526.g5318336


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From: Mike Frysinger <vapier@gentoo.org>
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Subject: Re: struct sigaction sa_restorer field
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On Mon 21 Jul 2014 10:25:46 Helge Deller wrote:
> > The sa_restorer field is obsolete and not in the hppa struct
> > sigaction, but we still define SA_RESTORER.  What should be done?
>=20
> Basically to not break userspace we can't (and shouldn't) add the
> sa_restorer struct member. So, the only option would be to drop the
> SA_RESTORER #define, right? But I have no idea how and if this will b=
reak
> some builds, since the major arches seem to define SA_RESTORER...

would be nice to drop.  i had to update strace to undef it for hppa sin=
ce the=20
field didn't actually exist -- it uses the define to see whether the fi=
eld=20
should be decoded (which is why strace decoding of this syscall hasn't =
worked=20
in the past on parisc).  not all arches define it, so i think there's a=
lready=20
cover for code needing to check for its existence.
=2Dmike
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From - Thu Nov 08 21:10:35 2018
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From: Chen Gang <gang.chen.5i5j@gmail.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.openrisc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user
Subject: [PATCH v3] arch: Kconfig: Let all architectures set endian explicitly
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Cc: linux390@de.ibm.com, x86@kernel.org, linux-alpha@vger.kernel.org,
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To: Arnd Bergmann <arnd@arndb.de>, akpm@linux-foundation.org,
        rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com,
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Xref: news.gmane.org gmane.linux.ports.mips.general:43249 gmane.linux.ports.alpha:2344 gmane.linux.kernel:1768227 gmane.linux.ports.arm.kernel:348617 gmane.linux.ports.hexagon:745 gmane.linux.ports.ia64:24117 gmane.linux.kernel.metag:241 gmane.linux.ports.openrisc:511 gmane.linux.ports.parisc:5971 gmane.linux.ports.ppc64.devel:104333 gmane.linux.ports.sparc:19435 gmane.linux.uml.devel:14555 gmane.linux.uml.user:14699
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/43249>

Normal architectures:

 - Big endian: avr32, frv, m68k, openrisc, parisc, s390, sparc

 - Little endian: alpha, blackfin, cris, hexagon, ia64, metag, mn10300,
                  score, unicore32, x86

 - Choose in config time: arc, arm, arm64, c6x, m32r, mips, powerpc, sh

Special architectures:

 - Deside by compiler: microblaze, tile, xtensa.

 - Deside by building host: um

 - Next, need improve Kbuild to probe endian to deside whether need mark
   __BUILDING_TIME_BIG_ENDIAN__ before real config.

Another improvements:

 - score: use '\t' instead of ' '.

 - s390: sort the select value in alpha order.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
---
 arch/alpha/Kconfig      |  1 +
 arch/arc/Kconfig        |  1 +
 arch/arm/Kconfig        |  1 +
 arch/arm64/Kconfig      |  1 +
 arch/avr32/Kconfig      |  1 +
 arch/blackfin/Kconfig   |  1 +
 arch/c6x/Kconfig        |  1 +
 arch/cris/Kconfig       |  1 +
 arch/frv/Kconfig        |  1 +
 arch/hexagon/Kconfig    |  1 +
 arch/ia64/Kconfig       |  1 +
 arch/m32r/Kconfig       |  1 +
 arch/m68k/Kconfig       |  1 +
 arch/metag/Kconfig      |  1 +
 arch/microblaze/Kconfig |  2 ++
 arch/mips/Kconfig       |  1 +
 arch/mn10300/Kconfig    |  1 +
 arch/openrisc/Kconfig   |  1 +
 arch/parisc/Kconfig     |  1 +
 arch/powerpc/Kconfig    |  1 +
 arch/s390/Kconfig       |  3 ++-
 arch/score/Kconfig      | 21 +++++++++++----------
 arch/sparc/Kconfig      |  1 +
 arch/tile/Kconfig       |  2 ++
 arch/um/Kconfig.common  |  2 ++
 arch/unicore32/Kconfig  |  1 +
 arch/x86/Kconfig        |  1 +
 arch/xtensa/Kconfig     |  2 ++
 init/Kconfig            |  6 ++++++
 29 files changed, 49 insertions(+), 11 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index b7ff9a3..1cb7426 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -27,6 +27,7 @@ config ALPHA
 	select MODULES_USE_ELF_RELA
 	select ODD_RT_SIGACTION
 	select OLD_SIGSUSPEND
+	select CPU_LITTLE_ENDIAN
 	help
 	  The Alpha is a 64-bit general-purpose processor designed and
 	  marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 9596b0a..e939abd 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -35,6 +35,7 @@ config ARC
 	select OF_EARLY_FLATTREE
 	select PERF_USE_VMALLOC
 	select HAVE_DEBUG_STACKOVERFLOW
+	select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
 
 config TRACE_IRQFLAGS_SUPPORT
 	def_bool y
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 32cbbd5..3a806b3 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -12,6 +12,7 @@ config ARM
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select BUILDTIME_EXTABLE_SORT if MMU
 	select CLONE_BACKWARDS
+	select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
 	select CPU_PM if (SUSPEND || CPU_IDLE)
 	select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
 	select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 62b4ae1..c5a91de 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -17,6 +17,7 @@ config ARM64
 	select BUILDTIME_EXTABLE_SORT
 	select CLONE_BACKWARDS
 	select COMMON_CLK
+	select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
 	select CPU_PM if (SUSPEND || CPU_IDLE)
 	select DCACHE_WORD_ACCESS
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index b6878eb..fab44ee 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -17,6 +17,7 @@ config AVR32
 	select GENERIC_CLOCKEVENTS
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_RELA
+	select CPU_BIG_ENDIAN
 	help
 	  AVR32 is a high-performance 32-bit RISC microprocessor core,
 	  designed for cost-sensitive embedded applications, with particular
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index ed30699..348f16d 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -40,6 +40,7 @@ config BLACKFIN
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_RELA
 	select HAVE_DEBUG_STACKOVERFLOW
+	select CPU_LITTLE_ENDIAN
 
 config GENERIC_CSUM
 	def_bool y
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 77ea09b..7e74d14 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -17,6 +17,7 @@ config C6X
 	select OF_EARLY_FLATTREE
 	select GENERIC_CLOCKEVENTS
 	select MODULES_USE_ELF_RELA
+	select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
 
 config MMU
 	def_bool n
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 52731e2..405a097 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -52,6 +52,7 @@ config CRIS
 	select CLONE_BACKWARDS2
 	select OLD_SIGSUSPEND
 	select OLD_SIGACTION
+	select CPU_LITTLE_ENDIAN
 
 config HZ
 	int
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index 34aa193..aa21ccc 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -14,6 +14,7 @@ config FRV
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
 	select HAVE_DEBUG_STACKOVERFLOW
+	select CPU_BIG_ENDIAN
 
 config ZONE_DMA
 	bool
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 4dc89d1..ee91285 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -28,6 +28,7 @@ config HEXAGON
 	select MODULES_USE_ELF_RELA
 	select GENERIC_CPU_DEVICES
 	select HAVE_DMA_ATTRS
+	select CPU_LITTLE_ENDIAN
 	---help---
 	  Qualcomm Hexagon is a processor architecture designed for high
 	  performance and low power across a wide variety of applications.
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index c84c88b..54f32c7 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -49,6 +49,7 @@ config IA64
 	select MODULES_USE_ELF_RELA
 	select ARCH_USE_CMPXCHG_LOCKREF
 	select HAVE_ARCH_AUDITSYSCALL
+	select CPU_LITTLE_ENDIAN
 	default y
 	help
 	  The Itanium Processor Family is Intel's 64-bit successor to
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 9e44bbd..1932483 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -16,6 +16,7 @@ config M32R
 	select ARCH_USES_GETTIMEOFFSET
 	select MODULES_USE_ELF_RELA
 	select HAVE_DEBUG_STACKOVERFLOW
+	select CPU_BIG_ENDIAN if !CPU_LITTLE_ENDIAN
 
 config SBUS
 	bool
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 87b7c75..7a7fe25 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -23,6 +23,7 @@ config M68K
 	select MODULES_USE_ELF_RELA
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
+	select CPU_BIG_ENDIAN
 
 config RWSEM_GENERIC_SPINLOCK
 	bool
diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig
index 0b389a8..e57c6a0 100644
--- a/arch/metag/Kconfig
+++ b/arch/metag/Kconfig
@@ -29,6 +29,7 @@ config METAG
 	select OF
 	select OF_EARLY_FLATTREE
 	select SPARSE_IRQ
+	select CPU_LITTLE_ENDIAN
 
 config STACKTRACE_SUPPORT
 	def_bool y
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 40e1c1d..d80ae78 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -7,6 +7,8 @@ config MICROBLAZE
 	select CLKSRC_OF
 	select CLONE_BACKWARDS3
 	select COMMON_CLK
+	select CPU_BIG_ENDIAN if __BUILDING_TIME_BIG_ENDIAN__
+	select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CPU_DEVICES
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 900c7e5..671d822 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -52,6 +52,7 @@ config MIPS
 	select HAVE_CC_STACKPROTECTOR
 	select CPU_PM if CPU_IDLE
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
+	select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
 
 menu "Machine selection"
 
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index a648de1..60fb249 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -13,6 +13,7 @@ config MN10300
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
 	select HAVE_DEBUG_STACKOVERFLOW
+	select CPU_LITTLE_ENDIAN
 
 config AM33_2
 	def_bool n
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 88e8336..4757b7d 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -23,6 +23,7 @@ config OPENRISC
 	select MODULES_USE_ELF_RELA
 	select HAVE_DEBUG_STACKOVERFLOW
 	select OR1K_PIC
+	select CPU_BIG_ENDIAN
 
 config MMU
 	def_bool y
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 6e75e20..dc82137 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -29,6 +29,7 @@ config PARISC
 	select TTY # Needed for pdc_cons.c
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_ARCH_AUDITSYSCALL
+	select CPU_BIG_ENDIAN
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 4bc7b62..644c6d4 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -147,6 +147,7 @@ config PPC
 	select ARCH_USE_CMPXCHG_LOCKREF if PPC64
 	select HAVE_ARCH_AUDITSYSCALL
 	select ARCH_SUPPORTS_ATOMIC_RMW
+	select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
 
 config GENERIC_CSUM
 	def_bool CPU_LITTLE_ENDIAN
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 05c78bb..8691c6f 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -62,6 +62,7 @@ config S390
 	def_bool y
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	select ARCH_HAS_SG_CHAIN
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_INLINE_READ_LOCK
 	select ARCH_INLINE_READ_LOCK_BH
@@ -97,6 +98,7 @@ config S390
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select BUILDTIME_EXTABLE_SORT
 	select CLONE_BACKWARDS2
+	select CPU_BIG_ENDIAN
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CPU_DEVICES if !SMP
 	select GENERIC_FIND_FIRST_BIT
@@ -145,7 +147,6 @@ config S390
 	select TTY
 	select VIRT_CPU_ACCOUNTING
 	select VIRT_TO_BUS
-	select ARCH_HAS_SG_CHAIN
 
 config SCHED_OMIT_FRAME_POINTER
 	def_bool y
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index 4ac8cae..713b290 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -1,19 +1,20 @@
 menu "Machine selection"
 
 config SCORE
-       def_bool y
-       select GENERIC_IRQ_SHOW
-       select GENERIC_IOMAP
-       select GENERIC_ATOMIC64
-       select HAVE_MEMBLOCK
-       select HAVE_MEMBLOCK_NODE_MAP
-       select ARCH_DISCARD_MEMBLOCK
-       select GENERIC_CPU_DEVICES
-       select GENERIC_CLOCKEVENTS
-       select HAVE_MOD_ARCH_SPECIFIC
+	def_bool y
+	select GENERIC_IRQ_SHOW
+	select GENERIC_IOMAP
+	select GENERIC_ATOMIC64
+	select HAVE_MEMBLOCK
+	select HAVE_MEMBLOCK_NODE_MAP
+	select ARCH_DISCARD_MEMBLOCK
+	select GENERIC_CPU_DEVICES
+	select GENERIC_CLOCKEVENTS
+	select HAVE_MOD_ARCH_SPECIFIC
 	select VIRT_TO_BUS
 	select MODULES_USE_ELF_REL
 	select CLONE_BACKWARDS
+	select CPU_LITTLE_ENDIAN
 
 choice
 	prompt "System type"
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index a537816..9de09e6 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -43,6 +43,7 @@ config SPARC
 	select ODD_RT_SIGACTION
 	select OLD_SIGSUSPEND
 	select ARCH_HAS_SG_CHAIN
+	select CPU_BIG_ENDIAN
 
 config SPARC32
 	def_bool !64BIT
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 7fcd492..e042479 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -27,6 +27,8 @@ config TILE
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select HAVE_DEBUG_STACKOVERFLOW
 	select ARCH_WANT_FRAME_POINTERS
+	select CPU_BIG_ENDIAN if __BUILDING_TIME_BIG_ENDIAN__
+	select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
 
 # FIXME: investigate whether we need/want these options.
 #	select HAVE_IOREMAP_PROT
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index 6915d28..f696ec2 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -8,6 +8,8 @@ config UML
 	select GENERIC_IO
 	select GENERIC_CLOCKEVENTS
 	select TTY # Needed for line.c
+	select CPU_BIG_ENDIAN if __BUILDING_TIME_BIG_ENDIAN__
+	select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
 
 config MMU
 	bool
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 928237a..02be244 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -18,6 +18,7 @@ config UNICORE32
 	select ARCH_WANT_FRAME_POINTERS
 	select GENERIC_IOMAP
 	select MODULES_USE_ELF_REL
+	select CPU_LITTLE_ENDIAN
 	help
 	  UniCore-32 is 32-bit Instruction Set Architecture,
 	  including a series of low-power-consumption RISC chip
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1164b7d..9b83e33 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -136,6 +136,7 @@ config X86
 	select HAVE_ACPI_APEI if ACPI
 	select HAVE_ACPI_APEI_NMI if ACPI
 	select ACPI_LEGACY_TABLES_LOOKUP if ACPI
+	select CPU_LITTLE_ENDIAN
 
 config INSTRUCTION_DECODER
 	def_bool y
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 3a617af..a3e8f7e 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -22,6 +22,8 @@ config XTENSA
 	select HAVE_IRQ_TIME_ACCOUNTING
 	select HAVE_PERF_EVENTS
 	select COMMON_CLK
+	select CPU_BIG_ENDIAN if __BUILDING_TIME_BIG_ENDIAN__
+	select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
 	help
 	  Xtensa processors are 32-bit RISC machines designed by Tensilica
 	  primarily for embedded systems.  These processors are both
diff --git a/init/Kconfig b/init/Kconfig
index 9565224..6dd3b20 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -23,6 +23,12 @@ config CONSTRUCTORS
 config IRQ_WORK
 	bool
 
+config CPU_LITTLE_ENDIAN
+	bool
+
+config CPU_BIG_ENDIAN
+	bool
+
 config BUILDTIME_EXTABLE_SORT
 	bool
 
-- 
1.7.11.7



From - Thu Nov 08 21:10:35 2018
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From: Ralf Baechle <ralf@linux-mips.org>
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Subject: Re: [PATCH v3] arch: Kconfig: Let all architectures set endian
 explicitly
Date: Thu, 14 Aug 2014 20:04:18 +0200
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Cc: Arnd Bergmann <arnd@arndb.de>, akpm@linux-foundation.org,
        rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com,
        vgupta@synopsys.com, Geert Uytterhoeven <geert@linux-m68k.org>,
        Jean Delvare <jdelvare@suse.de>, linux@arm.linux.org.uk,
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        paulus@samba.org, mpe@ellerman.id.au,
        Mart
To: Chen Gang <gang.chen.5i5j@gmail.com>
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On Fri, Aug 15, 2014 at 12:54:53AM +0800, Chen Gang wrote:

> Normal architectures:
> 
>  - Big endian: avr32, frv, m68k, openrisc, parisc, s390, sparc
> 
>  - Little endian: alpha, blackfin, cris, hexagon, ia64, metag, mn10300,
>                   score, unicore32, x86
> 
>  - Choose in config time: arc, arm, arm64, c6x, m32r, mips, powerpc, sh

Nak for MIPS.  On MIPS Kconfig already always sets one of CPU_BIG_ENDIAN
and CPU_LITTLE_ENDIAN depending on platforms and where both endianess are
supported by a platform, user choice:

config FOO
	bool "foo"
	select SYS_SUPPORTS_LITTLE_ENDIAN

config FOO
	bool "foo"
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
[...]
choice
        prompt "Endianess selection"
        help
          Some MIPS machines can be configured for either little or big endian
          byte order. These modes require different kernels and a different
          Linux distribution.  In general there is one preferred byteorder for a
          particular system but some systems are just as commonly used in the
          one or the other endianness.

config CPU_BIG_ENDIAN
        bool "Big endian"
        depends on SYS_SUPPORTS_BIG_ENDIAN

config CPU_LITTLE_ENDIAN
        bool "Little endian"
        depends on SYS_SUPPORTS_LITTLE_ENDIAN
        help

endchoice

So I think you can just drop the MIPS segment from your patch.

  Ralf



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From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
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Subject: Re: [PATCH v3] arch: Kconfig: Let all architectures set endian
 explicitly
Date: Thu, 14 Aug 2014 18:21:43 +0000
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To: Chen Gang <gang.chen.5i5j@gmail.com>,
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Thread-Topic: [PATCH v3] arch: Kconfig: Let all architectures set endian
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On Thursday 14 August 2014 09:55 AM, Chen Gang wrote:
> Normal architectures:
>
>  - Big endian: avr32, frv, m68k, openrisc, parisc, s390, sparc
>
>  - Little endian: alpha, blackfin, cris, hexagon, ia64, metag, mn10300,
>                   score, unicore32, x86
>
>  - Choose in config time: arc, arm, arm64, c6x, m32r, mips, powerpc, sh
>
> Special architectures:
>
>  - Deside by compiler: microblaze, tile, xtensa.
>
>  - Deside by building host: um
>
>  - Next, need improve Kbuild to probe endian to deside whether need mark
>    __BUILDING_TIME_BIG_ENDIAN__ before real config.
>
> Another improvements:
>
>  - score: use '\t' instead of ' '.
>
>  - s390: sort the select value in alpha order.
>
> Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
> ---
>  arch/alpha/Kconfig      |  1 +
>  arch/arc/Kconfig        |  1 +
>  arch/arm/Kconfig        |  1 +
>  arch/arm64/Kconfig      |  1 +
>  arch/avr32/Kconfig      |  1 +
>  arch/blackfin/Kconfig   |  1 +
>  arch/c6x/Kconfig        |  1 +
>  arch/cris/Kconfig       |  1 +
>  arch/frv/Kconfig        |  1 +
>  arch/hexagon/Kconfig    |  1 +
>  arch/ia64/Kconfig       |  1 +
>  arch/m32r/Kconfig       |  1 +
>  arch/m68k/Kconfig       |  1 +
>  arch/metag/Kconfig      |  1 +
>  arch/microblaze/Kconfig |  2 ++
>  arch/mips/Kconfig       |  1 +
>  arch/mn10300/Kconfig    |  1 +
>  arch/openrisc/Kconfig   |  1 +
>  arch/parisc/Kconfig     |  1 +
>  arch/powerpc/Kconfig    |  1 +
>  arch/s390/Kconfig       |  3 ++-
>  arch/score/Kconfig      | 21 +++++++++++----------
>  arch/sparc/Kconfig      |  1 +
>  arch/tile/Kconfig       |  2 ++
>  arch/um/Kconfig.common  |  2 ++
>  arch/unicore32/Kconfig  |  1 +
>  arch/x86/Kconfig        |  1 +
>  arch/xtensa/Kconfig     |  2 ++
>  init/Kconfig            |  6 ++++++
>  29 files changed, 49 insertions(+), 11 deletions(-)
>
> diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
> index b7ff9a3..1cb7426 100644
> --- a/arch/alpha/Kconfig
> +++ b/arch/alpha/Kconfig
> @@ -27,6 +27,7 @@ config ALPHA
>  	select MODULES_USE_ELF_RELA
>  	select ODD_RT_SIGACTION
>  	select OLD_SIGSUSPEND
> +	select CPU_LITTLE_ENDIAN
>  	help
>  	  The Alpha is a 64-bit general-purpose processor designed and
>  	  marketed by the Digital Equipment Corporation of blessed memory,
> diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
> index 9596b0a..e939abd 100644
> --- a/arch/arc/Kconfig
> +++ b/arch/arc/Kconfig
> @@ -35,6 +35,7 @@ config ARC
>  	select OF_EARLY_FLATTREE
>  	select PERF_USE_VMALLOC
>  	select HAVE_DEBUG_STACKOVERFLOW
> +	select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN

It is not clear what exactly are you trying to fix. What doesn't work w/o this
patch !

-Vineet



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From: Lennox Wu <lennox.wu@gmail.com>
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Subject: Re: [PATCH v3] arch: Kconfig: Let all architectures set endian
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Cc: "linux-m32r-ja@ml.linux-m32r.org" <linux-m32r-ja@ml.linux-m32r.org>,
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To: Vineet Gupta <Vineet.Gupta1@synopsys.com>
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I don't think it's necessary, what's the benfit?




2014-08-15 2:21 GMT+08:00 Vineet Gupta <Vineet.Gupta1@synopsys.com>:

> On Thursday 14 August 2014 09:55 AM, Chen Gang wrote:
> > Normal architectures:
> >
> >  - Big endian: avr32, frv, m68k, openrisc, parisc, s390, sparc
> >
> >  - Little endian: alpha, blackfin, cris, hexagon, ia64, metag, mn10300,
> >                   score, unicore32, x86
> >
> >  - Choose in config time: arc, arm, arm64, c6x, m32r, mips, powerpc, sh
> >
> > Special architectures:
> >
> >  - Deside by compiler: microblaze, tile, xtensa.
> >
> >  - Deside by building host: um
> >
> >  - Next, need improve Kbuild to probe endian to deside whether need mark
> >    __BUILDING_TIME_BIG_ENDIAN__ before real config.
> >
> > Another improvements:
> >
> >  - score: use '\t' instead of ' '.
> >
> >  - s390: sort the select value in alpha order.
> >
> > Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
> > ---
> >  arch/alpha/Kconfig      |  1 +
> >  arch/arc/Kconfig        |  1 +
> >  arch/arm/Kconfig        |  1 +
> >  arch/arm64/Kconfig      |  1 +
> >  arch/avr32/Kconfig      |  1 +
> >  arch/blackfin/Kconfig   |  1 +
> >  arch/c6x/Kconfig        |  1 +
> >  arch/cris/Kconfig       |  1 +
> >  arch/frv/Kconfig        |  1 +
> >  arch/hexagon/Kconfig    |  1 +
> >  arch/ia64/Kconfig       |  1 +
> >  arch/m32r/Kconfig       |  1 +
> >  arch/m68k/Kconfig       |  1 +
> >  arch/metag/Kconfig      |  1 +
> >  arch/microblaze/Kconfig |  2 ++
> >  arch/mips/Kconfig       |  1 +
> >  arch/mn10300/Kconfig    |  1 +
> >  arch/openrisc/Kconfig   |  1 +
> >  arch/parisc/Kconfig     |  1 +
> >  arch/powerpc/Kconfig    |  1 +
> >  arch/s390/Kconfig       |  3 ++-
> >  arch/score/Kconfig      | 21 +++++++++++----------
> >  arch/sparc/Kconfig      |  1 +
> >  arch/tile/Kconfig       |  2 ++
> >  arch/um/Kconfig.common  |  2 ++
> >  arch/unicore32/Kconfig  |  1 +
> >  arch/x86/Kconfig        |  1 +
> >  arch/xtensa/Kconfig     |  2 ++
> >  init/Kconfig            |  6 ++++++
> >  29 files changed, 49 insertions(+), 11 deletions(-)
> >
> > diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
> > index b7ff9a3..1cb7426 100644
> > --- a/arch/alpha/Kconfig
> > +++ b/arch/alpha/Kconfig
> > @@ -27,6 +27,7 @@ config ALPHA
> >       select MODULES_USE_ELF_RELA
> >       select ODD_RT_SIGACTION
> >       select OLD_SIGSUSPEND
> > +     select CPU_LITTLE_ENDIAN
> >       help
> >         The Alpha is a 64-bit general-purpose processor designed and
> >         marketed by the Digital Equipment Corporation of blessed memory,
> > diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
> > index 9596b0a..e939abd 100644
> > --- a/arch/arc/Kconfig
> > +++ b/arch/arc/Kconfig
> > @@ -35,6 +35,7 @@ config ARC
> >       select OF_EARLY_FLATTREE
> >       select PERF_USE_VMALLOC
> >       select HAVE_DEBUG_STACKOVERFLOW
> > +     select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
>
> It is not clear what exactly are you trying to fix. What doesn't work w/o
> this
> patch !
>
> -Vineet
>

--485b397dd5e5ad1cec05009b0d88
Content-Type: text/html; charset=UTF-8
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<div dir=3D"ltr"><div>I don&#39;t think it&#39;s necessary, what&#39;s the =
benfit?</div><div><br></div><div><br></div></div><div class=3D"gmail_extra"=
><br><br><div class=3D"gmail_quote">2014-08-15 2:21 GMT+08:00 Vineet Gupta =
<span dir=3D"ltr">&lt;<a href=3D"mailto:Vineet.Gupta1@synopsys.com" target=
=3D"_blank">Vineet.Gupta1@synopsys.com</a>&gt;</span>:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div class=3D"HOEnZb"><div class=3D"h5">On T=
hursday 14 August 2014 09:55 AM, Chen Gang wrote:<br>
&gt; Normal architectures:<br>
&gt;<br>
&gt;=C2=A0 - Big endian: avr32, frv, m68k, openrisc, parisc, s390, sparc<br=
>
&gt;<br>
&gt;=C2=A0 - Little endian: alpha, blackfin, cris, hexagon, ia64, metag, mn=
10300,<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0sc=
ore, unicore32, x86<br>
&gt;<br>
&gt;=C2=A0 - Choose in config time: arc, arm, arm64, c6x, m32r, mips, power=
pc, sh<br>
&gt;<br>
&gt; Special architectures:<br>
&gt;<br>
&gt;=C2=A0 - Deside by compiler: microblaze, tile, xtensa.<br>
&gt;<br>
&gt;=C2=A0 - Deside by building host: um<br>
&gt;<br>
&gt;=C2=A0 - Next, need improve Kbuild to probe endian to deside whether ne=
ed mark<br>
&gt;=C2=A0 =C2=A0 __BUILDING_TIME_BIG_ENDIAN__ before real config.<br>
&gt;<br>
&gt; Another improvements:<br>
&gt;<br>
&gt;=C2=A0 - score: use &#39;\t&#39; instead of &#39; &#39;.<br>
&gt;<br>
&gt;=C2=A0 - s390: sort the select value in alpha order.<br>
&gt;<br>
&gt; Signed-off-by: Chen Gang &lt;<a href=3D"mailto:gang.chen.5i5j@gmail.co=
m">gang.chen.5i5j@gmail.com</a>&gt;<br>
&gt; ---<br>
&gt;=C2=A0 arch/alpha/Kconfig=C2=A0 =C2=A0 =C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/arc/Kconfig=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/arm/Kconfig=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/arm64/Kconfig=C2=A0 =C2=A0 =C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/avr32/Kconfig=C2=A0 =C2=A0 =C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/blackfin/Kconfig=C2=A0 =C2=A0|=C2=A0 1 +<br>
&gt;=C2=A0 arch/c6x/Kconfig=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/cris/Kconfig=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 1 +<br>
&gt;=C2=A0 arch/frv/Kconfig=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/hexagon/Kconfig=C2=A0 =C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/ia64/Kconfig=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 1 +<br>
&gt;=C2=A0 arch/m32r/Kconfig=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 1 +<br>
&gt;=C2=A0 arch/m68k/Kconfig=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 1 +<br>
&gt;=C2=A0 arch/metag/Kconfig=C2=A0 =C2=A0 =C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/microblaze/Kconfig |=C2=A0 2 ++<br>
&gt;=C2=A0 arch/mips/Kconfig=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 1 +<br>
&gt;=C2=A0 arch/mn10300/Kconfig=C2=A0 =C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/openrisc/Kconfig=C2=A0 =C2=A0|=C2=A0 1 +<br>
&gt;=C2=A0 arch/parisc/Kconfig=C2=A0 =C2=A0 =C2=A0|=C2=A0 1 +<br>
&gt;=C2=A0 arch/powerpc/Kconfig=C2=A0 =C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/s390/Kconfig=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 3 ++-<br>
&gt;=C2=A0 arch/score/Kconfig=C2=A0 =C2=A0 =C2=A0 | 21 +++++++++++---------=
-<br>
&gt;=C2=A0 arch/sparc/Kconfig=C2=A0 =C2=A0 =C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/tile/Kconfig=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 2 ++<br>
&gt;=C2=A0 arch/um/Kconfig.common=C2=A0 |=C2=A0 2 ++<br>
&gt;=C2=A0 arch/unicore32/Kconfig=C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/x86/Kconfig=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 1 +<br>
&gt;=C2=A0 arch/xtensa/Kconfig=C2=A0 =C2=A0 =C2=A0|=C2=A0 2 ++<br>
&gt;=C2=A0 init/Kconfig=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 6 =
++++++<br>
&gt;=C2=A0 29 files changed, 49 insertions(+), 11 deletions(-)<br>
&gt;<br>
&gt; diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig<br>
&gt; index b7ff9a3..1cb7426 100644<br>
&gt; --- a/arch/alpha/Kconfig<br>
&gt; +++ b/arch/alpha/Kconfig<br>
&gt; @@ -27,6 +27,7 @@ config ALPHA<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0select MODULES_USE_ELF_RELA<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0select ODD_RT_SIGACTION<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0select OLD_SIGSUSPEND<br>
&gt; +=C2=A0 =C2=A0 =C2=A0select CPU_LITTLE_ENDIAN<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0help<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0The Alpha is a 64-bit general-purpose=
 processor designed and<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0marketed by the Digital Equipment Cor=
poration of blessed memory,<br>
&gt; diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig<br>
&gt; index 9596b0a..e939abd 100644<br>
&gt; --- a/arch/arc/Kconfig<br>
&gt; +++ b/arch/arc/Kconfig<br>
&gt; @@ -35,6 +35,7 @@ config ARC<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0select OF_EARLY_FLATTREE<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0select PERF_USE_VMALLOC<br>
&gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0select HAVE_DEBUG_STACKOVERFLOW<br>
&gt; +=C2=A0 =C2=A0 =C2=A0select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN<br>
<br>
</div></div>It is not clear what exactly are you trying to fix. What doesn&=
#39;t work w/o this<br>
patch !<br>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
-Vineet<br>
</font></span></blockquote></div><br></div>

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Subject: Re: [PATCH v3] arch: Kconfig: Let all architectures set endian explicitly
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On 08/15/2014 02:04 AM, Ralf Baechle wrote:
> On Fri, Aug 15, 2014 at 12:54:53AM +0800, Chen Gang wrote:
> 
>> Normal architectures:
>>
>>  - Big endian: avr32, frv, m68k, openrisc, parisc, s390, sparc
>>
>>  - Little endian: alpha, blackfin, cris, hexagon, ia64, metag, mn10300,
>>                   score, unicore32, x86
>>
>>  - Choose in config time: arc, arm, arm64, c6x, m32r, mips, powerpc, sh
> 
> Nak for MIPS.  On MIPS Kconfig already always sets one of CPU_BIG_ENDIAN
> and CPU_LITTLE_ENDIAN depending on platforms and where both endianess are
> supported by a platform, user choice:
> 
> config FOO
> 	bool "foo"
> 	select SYS_SUPPORTS_LITTLE_ENDIAN
> 
> config FOO
> 	bool "foo"
> 	select SYS_SUPPORTS_BIG_ENDIAN
> 	select SYS_SUPPORTS_LITTLE_ENDIAN
> [...]
> choice
>         prompt "Endianess selection"
>         help
>           Some MIPS machines can be configured for either little or big endian
>           byte order. These modes require different kernels and a different
>           Linux distribution.  In general there is one preferred byteorder for a
>           particular system but some systems are just as commonly used in the
>           one or the other endianness.
> 
> config CPU_BIG_ENDIAN
>         bool "Big endian"
>         depends on SYS_SUPPORTS_BIG_ENDIAN
> 
> config CPU_LITTLE_ENDIAN
>         bool "Little endian"
>         depends on SYS_SUPPORTS_LITTLE_ENDIAN
>         help
> 
> endchoice
> 

OK, thanks, I assumes when support both endian, the default choice is
CPU_BIG_ENDIAN, although no default value for choice (originally, I did
worry about it).

> So I think you can just drop the MIPS segment from your patch.
> 

If what I assumes is correct, what you said sounds reasonable to me.


Thanks.
-- 
Chen Gang

Open share and attitude like air water and life which God blessed



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Subject: Re: [PATCH v3] arch: Kconfig: Let all architectures set endian explicitly
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On 08/15/2014 02:27 AM, Lennox Wu wrote:
> I don't think it's necessary, what's the benfit?
> 
> 2014-08-15 2:21 GMT+08:00 Vineet Gupta <Vineet.Gupta1@synopsys.com>:
> 
>> On Thursday 14 August 2014 09:55 AM, Chen Gang wrote:
[...]
>>> diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
>>> index 9596b0a..e939abd 100644
>>> --- a/arch/arc/Kconfig
>>> +++ b/arch/arc/Kconfig
>>> @@ -35,6 +35,7 @@ config ARC
>>>       select OF_EARLY_FLATTREE
>>>       select PERF_USE_VMALLOC
>>>       select HAVE_DEBUG_STACKOVERFLOW
>>> +     select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
>>
>> It is not clear what exactly are you trying to fix. What doesn't work w/o
>> this
>> patch !
>>

For many individual modules may need check CPU_LITTLE_ENDIAN or
CPU_BIG_ENDIAN, which is an architecture's attribute.

Or they have to list many architectures which they support, which they
don't support. And still, it is not precise.

For architecture API, endian is a main architecture's attribute which
may be used by outside, so every architecture need let outside know
about it, explicitly.


Thanks.
-- 
Chen Gang

Open share and attitude like air water and life which God blessed



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On Thursday 14 August 2014 03:22 PM, Chen Gang wrote:
> For many individual modules may need check CPU_LITTLE_ENDIAN or
> CPU_BIG_ENDIAN, which is an architecture's attribute.
>
> Or they have to list many architectures which they support, which they
> don't support. And still, it is not precise.
>
> For architecture API, endian is a main architecture's attribute which
> may be used by outside, so every architecture need let outside know
> about it, explicitly.

I don't think that is correct. The modules need to use standard API e.g. swab
which will take care of proper endian handling anyways. Why would a module do
anything endian specific outside of those APIs.

And again is this churn just theoretical or do you really have a issue at hand ! I
would not accept a change for ARC unless you prove that something is broken (or
atleast potentially broken) !

-Vineet



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On 8/15/14 7:12, Vineet Gupta wrote:
> On Thursday 14 August 2014 03:22 PM, Chen Gang wrote:
>> For many individual modules may need check CPU_LITTLE_ENDIAN or
>> CPU_BIG_ENDIAN, which is an architecture's attribute.
>>
>> Or they have to list many architectures which they support, which they
>> don't support. And still, it is not precise.
>>
>> For architecture API, endian is a main architecture's attribute which
>> may be used by outside, so every architecture need let outside know
>> about it, explicitly.
> 
> I don't think that is correct. The modules need to use standard API e.g. swab
> which will take care of proper endian handling anyways. Why would a module do
> anything endian specific outside of those APIs.
> 

For building time, modules can check endians with various API. But for
config time, at present, we have no related standard API for it.

> And again is this churn just theoretical or do you really have a issue at hand ! I
> would not accept a change for ARC unless you prove that something is broken (or
> atleast potentially broken) !
> 

An issue for allmodconfig under microblaze, the original patch is below
(I guess, not only one module may match this case):


-------- Forwarded Message --------
Subject: [PATCH] drivers/isdn/hisax/Kconfig: Let HISAX_NETJET skip microblaze architecture
Date: Tue, 05 Aug 2014 02:24:09 +0800
From: Chen Gang <gang.chen.5i5j@gmail.com>
To: isdn@linux-pingi.de
CC: davem@davemloft.net, Jean Delvare <jdelvare@suse.de>, netdev@vger.kernel.org, linux-kernel@vger.kernel.org <linux-kernel@vger.kernel.org>, monstr@monstr.eu

For HISAX_NETJET, HISAX_NETJET_U or related config needs !__BIG_ENDIAN,
so skip microblaze, just like skip all other architectures which have
no CONFIG_*_ENDIAN.

The related error (with allmodconfig under microblaze):

    CC [M]  drivers/isdn/hisax/nj_s.o
  drivers/isdn/hisax/nj_s.c: In function 'setup_netjet_s':
  drivers/isdn/hisax/nj_s.c:265:2: error: #error "not running on big endian machines now"
   #error "not running on big endian machines now"
    ^

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
---
 drivers/isdn/hisax/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/isdn/hisax/Kconfig b/drivers/isdn/hisax/Kconfig
index 97465ac..eb83d94 100644
--- a/drivers/isdn/hisax/Kconfig
+++ b/drivers/isdn/hisax/Kconfig
@@ -237,7 +237,7 @@ config HISAX_MIC
 
 config HISAX_NETJET
 	bool "NETjet card"
-	depends on PCI && (BROKEN || !(PPC || PARISC || M68K || (MIPS && !CPU_LITTLE_ENDIAN) || FRV || (XTENSA && !CPU_LITTLE_ENDIAN)))
+	depends on PCI && (BROKEN || !(PPC || PARISC || M68K || (MIPS && !CPU_LITTLE_ENDIAN) || FRV || (XTENSA && !CPU_LITTLE_ENDIAN) || MICROBLAZE))
 	depends on VIRT_TO_BUS
 	help
 	  This enables HiSax support for the NetJet from Traverse
@@ -249,7 +249,7 @@ config HISAX_NETJET
 
 config HISAX_NETJET_U
 	bool "NETspider U card"
-	depends on PCI && (BROKEN || !(PPC || PARISC || M68K || (MIPS && !CPU_LITTLE_ENDIAN) || FRV || (XTENSA && !CPU_LITTLE_ENDIAN)))
+	depends on PCI && (BROKEN || !(PPC || PARISC || M68K || (MIPS && !CPU_LITTLE_ENDIAN) || FRV || (XTENSA && !CPU_LITTLE_ENDIAN) || MICROBLAZE))
 	depends on VIRT_TO_BUS
 	help
 	  This enables HiSax support for the Netspider U interface ISDN card





Thanks.
-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed



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Subject: Re: [PATCH v3] arch: Kconfig: Let all architectures set
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To: Chen Gang <gang.chen.5i5j@gmail.com>
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Hi Chen,

On Thu, Aug 14, 2014 at 8:54 PM, Chen Gang <gang.chen.5i5j@gmail.com> wrote:
> Normal architectures:
>
>  - Big endian: avr32, frv, m68k, openrisc, parisc, s390, sparc
>
>  - Little endian: alpha, blackfin, cris, hexagon, ia64, metag, mn10300,
>                   score, unicore32, x86
>
>  - Choose in config time: arc, arm, arm64, c6x, m32r, mips, powerpc, sh
>
> Special architectures:
>
>  - Deside by compiler: microblaze, tile, xtensa.
>
>  - Deside by building host: um
>
>  - Next, need improve Kbuild to probe endian to deside whether need mark
>    __BUILDING_TIME_BIG_ENDIAN__ before real config.

[...]

> diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
> index 3a617af..a3e8f7e 100644
> --- a/arch/xtensa/Kconfig
> +++ b/arch/xtensa/Kconfig
> @@ -22,6 +22,8 @@ config XTENSA
>         select HAVE_IRQ_TIME_ACCOUNTING
>         select HAVE_PERF_EVENTS
>         select COMMON_CLK
> +       select CPU_BIG_ENDIAN if __BUILDING_TIME_BIG_ENDIAN__
> +       select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
>         help
>           Xtensa processors are 32-bit RISC machines designed by Tensilica
>           primarily for embedded systems.  These processors are both

I've tested this part and it doesn't select neither CPU_BIG_ENDIAN,
nor CPU_LITTLE_ENDIAN. And looking into the Kconfig/Kbuild I cound't
find anything related to __BUILDING_TIME_BIG_ENDIAN__. Am I missing
something?

-- 
Thanks.
-- Max

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Subject: Re: [PATCH v3] arch: Kconfig: Let all architectures set
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To: Chen Gang <gang.chen.5i5j@gmail.com>
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On Fri, Aug 15, 2014 at 5:47 AM, Max Filippov <jcmvbkbc@gmail.com> wrote:
> Hi Chen,
>
> On Thu, Aug 14, 2014 at 8:54 PM, Chen Gang <gang.chen.5i5j@gmail.com> wrote:
>> Normal architectures:
>>
>>  - Big endian: avr32, frv, m68k, openrisc, parisc, s390, sparc
>>
>>  - Little endian: alpha, blackfin, cris, hexagon, ia64, metag, mn10300,
>>                   score, unicore32, x86
>>
>>  - Choose in config time: arc, arm, arm64, c6x, m32r, mips, powerpc, sh
>>
>> Special architectures:
>>
>>  - Deside by compiler: microblaze, tile, xtensa.
>>
>>  - Deside by building host: um
>>
>>  - Next, need improve Kbuild to probe endian to deside whether need mark
>>    __BUILDING_TIME_BIG_ENDIAN__ before real config.
>
> [...]
>
>> diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
>> index 3a617af..a3e8f7e 100644
>> --- a/arch/xtensa/Kconfig
>> +++ b/arch/xtensa/Kconfig
>> @@ -22,6 +22,8 @@ config XTENSA
>>         select HAVE_IRQ_TIME_ACCOUNTING
>>         select HAVE_PERF_EVENTS
>>         select COMMON_CLK
>> +       select CPU_BIG_ENDIAN if __BUILDING_TIME_BIG_ENDIAN__
>> +       select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
>>         help
>>           Xtensa processors are 32-bit RISC machines designed by Tensilica
>>           primarily for embedded systems.  These processors are both
>
> I've tested this part and it doesn't select neither CPU_BIG_ENDIAN,
> nor CPU_LITTLE_ENDIAN. And looking into the Kconfig/Kbuild I cound't

Correction: it always selects CPU_LITTLE_ENDIAN, regardless of the
compiler endianness.

> find anything related to __BUILDING_TIME_BIG_ENDIAN__. Am I missing
> something?

-- 
Thanks.
-- Max

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Subject: Re: [PATCH v3] arch: Kconfig: Let all architectures set endian explicitly
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On 8/15/14 9:52, Max Filippov wrote:
> On Fri, Aug 15, 2014 at 5:47 AM, Max Filippov <jcmvbkbc@gmail.com> wrote:
>> Hi Chen,
>>
>> On Thu, Aug 14, 2014 at 8:54 PM, Chen Gang <gang.chen.5i5j@gmail.com> wrote:
>>> Normal architectures:
>>>
>>>  - Big endian: avr32, frv, m68k, openrisc, parisc, s390, sparc
>>>
>>>  - Little endian: alpha, blackfin, cris, hexagon, ia64, metag, mn10300,
>>>                   score, unicore32, x86
>>>
>>>  - Choose in config time: arc, arm, arm64, c6x, m32r, mips, powerpc, sh
>>>
>>> Special architectures:
>>>
>>>  - Deside by compiler: microblaze, tile, xtensa.
>>>
>>>  - Deside by building host: um
>>>
>>>  - Next, need improve Kbuild to probe endian to deside whether need mark
>>>    __BUILDING_TIME_BIG_ENDIAN__ before real config.

Please check this comments, thanks.

>>
>> [...]
>>
>>> diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
>>> index 3a617af..a3e8f7e 100644
>>> --- a/arch/xtensa/Kconfig
>>> +++ b/arch/xtensa/Kconfig
>>> @@ -22,6 +22,8 @@ config XTENSA
>>>         select HAVE_IRQ_TIME_ACCOUNTING
>>>         select HAVE_PERF_EVENTS
>>>         select COMMON_CLK
>>> +       select CPU_BIG_ENDIAN if __BUILDING_TIME_BIG_ENDIAN__
>>> +       select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
>>>         help
>>>           Xtensa processors are 32-bit RISC machines designed by Tensilica
>>>           primarily for embedded systems.  These processors are both
>>
>> I've tested this part and it doesn't select neither CPU_BIG_ENDIAN,
>> nor CPU_LITTLE_ENDIAN. And looking into the Kconfig/Kbuild I cound't
> 
> Correction: it always selects CPU_LITTLE_ENDIAN, regardless of the
> compiler endianness.
> 

Yeah, at present, it always select CPU_LITTLE_ENDIAN, next, Kbuild need
be improved for it, just the comments said.

If this patch can be pass checking, I shall improve the Kbuild for it,
also will modify some individual drivers to use CPU_*_ENDIAN.

I guess, we need Cc to kbuild for getting more ideas, suggestions, or
completions.



THanks.
-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed



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On 8/15/14 6:14, Chen Gang wrote:
> On 08/15/2014 02:04 AM, Ralf Baechle wrote:
>>
> 
> OK, thanks, I assumes when support both endian, the default choice is
> CPU_BIG_ENDIAN, although no default value for choice (originally, I did
> worry about it).
> 
>> So I think you can just drop the MIPS segment from your patch.
>>
> 
> If what I assumes is correct, what you said sounds reasonable to me.
> 
> 

So for me, it is harmless to add CPU_*_ENDIAN explicitly, and can let
other members don't need think of.

By the way, for sh, it is almost the same case, except it contents the
default value, for me, it is clear enough, so I skip sh architecture in
this patch.


Thanks
-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed



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From: Aaro Koskinen <aaro.koskinen@iki.fi>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi,gmane.linux.ports.sparc
Subject: Re: Sym2 scsi hang on boot on sparc64
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Hi,

On Tue, Aug 19, 2014 at 09:47:35AM -0500, James Bottomley wrote:
> On Tue, 2014-08-19 at 17:37 +0300, Meelis Roos wrote:
> > > On Tue, 2014-08-19 at 14:25 +0300, Meelis Roos wrote:
> > > > 3.16 scsi worked fine, 3.17-rc1 misbehaves on 3 of my sparc64 test 
> > > > machines. E220R and E420R are with onboard 5c3875, V210 is with onboarc 
> > > > 53c1010 and all behave the same. Any ideas whre to dig deeper? bisection 
> > > > might be nontrivial, because of sparc64 changes that are OK on 3.17-rc1 
> > > > again - but is possible if nothing else helps.
> > > 
> > > We've got a parisc with an 875 as a root SCSI bus ... I haven't got
> > > around to building for it yet, but I might find time to try today.
> > 
> > Same on parisc:
> > 
> > sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 22
> > sym0: PA-RISC Firmware, ID 7, Fast-80, LVD, parity checking
> > sym0: SCSI BUS has been reset.
> > scsi host0: sym-2.2.3
> > random: nonblocking pool is initialized
> > 
> > and hangs here. So hopefully it is reproducible for you.
> 
> And also independent of the sparc changes.  The only other change in the
> window you quote is 64 bit luns.

Bisection (on PA-RISC) points to:

71e75c97f97a9645d25fbf3d8e4165a558f18747 is the first bad commit
commit 71e75c97f97a9645d25fbf3d8e4165a558f18747
Author: Christoph Hellwig <hch@lst.de>
Date:   Fri Apr 11 19:07:01 2014 +0200

    scsi: convert device_busy to atomic_t

A.
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On Tue, Aug 19, 2014 at 11:17:48PM +0300, Aaro Koskinen wrote:
> Hi,
> 
> On Tue, Aug 19, 2014 at 09:47:35AM -0500, James Bottomley wrote:
> > On Tue, 2014-08-19 at 17:37 +0300, Meelis Roos wrote:
> > > > On Tue, 2014-08-19 at 14:25 +0300, Meelis Roos wrote:
> > > > > 3.16 scsi worked fine, 3.17-rc1 misbehaves on 3 of my sparc64 test 
> > > > > machines. E220R and E420R are with onboard 5c3875, V210 is with onboarc 
> > > > > 53c1010 and all behave the same. Any ideas whre to dig deeper? bisection 
> > > > > might be nontrivial, because of sparc64 changes that are OK on 3.17-rc1 
> > > > > again - but is possible if nothing else helps.
> > > > 
> > > > We've got a parisc with an 875 as a root SCSI bus ... I haven't got
> > > > around to building for it yet, but I might find time to try today.
> > > 
> > > Same on parisc:
> > > 
> > > sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 22
> > > sym0: PA-RISC Firmware, ID 7, Fast-80, LVD, parity checking
> > > sym0: SCSI BUS has been reset.
> > > scsi host0: sym-2.2.3
> > > random: nonblocking pool is initialized
> > > 
> > > and hangs here. So hopefully it is reproducible for you.
> > 
> > And also independent of the sparc changes.  The only other change in the
> > window you quote is 64 bit luns.
> 
> Bisection (on PA-RISC) points to:
> 
> 71e75c97f97a9645d25fbf3d8e4165a558f18747 is the first bad commit
> commit 71e75c97f97a9645d25fbf3d8e4165a558f18747
> Author: Christoph Hellwig <hch@lst.de>
> Date:   Fri Apr 11 19:07:01 2014 +0200
> 
>     scsi: convert device_busy to atomic_t

I guess you need this fix:

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 9c44392..ce62e87 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1774,7 +1774,7 @@ static void scsi_request_fn(struct request_queue *q)
 	blk_requeue_request(q, req);
 	atomic_dec(&sdev->device_busy);
 out_delay:
-	if (atomic_read(&sdev->device_busy) && !scsi_device_blocked(sdev))
+	if (!atomic_read(&sdev->device_busy) && !scsi_device_blocked(sdev))
 		blk_delay_queue(q, SCSI_QUEUE_DELAY);
 }


James already sent it to Linus.

	Sam
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.scsi,gmane.linux.ports.parisc
Subject: Re: Sym2 scsi hang on boot on sparc64
Date: Tue, 19 Aug 2014 15:37:18 -0500
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On Tue, 2014-08-19 at 23:17 +0300, Aaro Koskinen wrote:
> Hi,
> 
> On Tue, Aug 19, 2014 at 09:47:35AM -0500, James Bottomley wrote:
> > On Tue, 2014-08-19 at 17:37 +0300, Meelis Roos wrote:
> > > > On Tue, 2014-08-19 at 14:25 +0300, Meelis Roos wrote:
> > > > > 3.16 scsi worked fine, 3.17-rc1 misbehaves on 3 of my sparc64 test 
> > > > > machines. E220R and E420R are with onboard 5c3875, V210 is with onboarc 
> > > > > 53c1010 and all behave the same. Any ideas whre to dig deeper? bisection 
> > > > > might be nontrivial, because of sparc64 changes that are OK on 3.17-rc1 
> > > > > again - but is possible if nothing else helps.
> > > > 
> > > > We've got a parisc with an 875 as a root SCSI bus ... I haven't got
> > > > around to building for it yet, but I might find time to try today.
> > > 
> > > Same on parisc:
> > > 
> > > sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 22
> > > sym0: PA-RISC Firmware, ID 7, Fast-80, LVD, parity checking
> > > sym0: SCSI BUS has been reset.
> > > scsi host0: sym-2.2.3
> > > random: nonblocking pool is initialized
> > > 
> > > and hangs here. So hopefully it is reproducible for you.
> > 
> > And also independent of the sparc changes.  The only other change in the
> > window you quote is 64 bit luns.
> 
> Bisection (on PA-RISC) points to:
> 
> 71e75c97f97a9645d25fbf3d8e4165a558f18747 is the first bad commit
> commit 71e75c97f97a9645d25fbf3d8e4165a558f18747
> Author: Christoph Hellwig <hch@lst.de>
> Date:   Fri Apr 11 19:07:01 2014 +0200
> 
>     scsi: convert device_busy to atomic_t

That's fixed upstream:

commit 480cadc2b7e0fa2bbab20141efb547dfe0c3707c
Author: Guenter Roeck <linux@roeck-us.net>
Date:   Sun Aug 10 05:54:25 2014 -0700

    scsi: Fix qemu boot hang problem

Could you try with a kernel that has that fix?

Thanks,

James


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From - Thu Nov 08 21:10:36 2018
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.scsi,gmane.linux.ports.parisc
Subject: Re: Sym2 scsi hang on boot on sparc64
Date: Tue, 19 Aug 2014 23:48:43 +0300
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Cc: Meelis Roos <mroos@linux.ee>, linux-scsi@vger.kernel.org,
	sparclinux@vger.kernel.org, Matthew Wilcox <matthew@wil.cx>,
	linux-parisc@vger.kernel.org, Christoph Hellwig <hch@lst.de>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/19474>

Hi,

On Tue, Aug 19, 2014 at 03:37:18PM -0500, James Bottomley wrote:
> On Tue, 2014-08-19 at 23:17 +0300, Aaro Koskinen wrote:
> > Bisection (on PA-RISC) points to:
> > 
> > 71e75c97f97a9645d25fbf3d8e4165a558f18747 is the first bad commit
> > commit 71e75c97f97a9645d25fbf3d8e4165a558f18747
> > Author: Christoph Hellwig <hch@lst.de>
> > Date:   Fri Apr 11 19:07:01 2014 +0200
> > 
> >     scsi: convert device_busy to atomic_t
> 
> That's fixed upstream:
> 
> commit 480cadc2b7e0fa2bbab20141efb547dfe0c3707c
> Author: Guenter Roeck <linux@roeck-us.net>
> Date:   Sun Aug 10 05:54:25 2014 -0700
> 
>     scsi: Fix qemu boot hang problem
> 
> Could you try with a kernel that has that fix?

Yes, the box boots now fine with the fix.

Thanks,

A.
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From - Thu Nov 08 21:10:36 2018
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.scsi,gmane.linux.ports.parisc
Subject: Re: Sym2 scsi hang on boot on sparc64
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> > Bisection (on PA-RISC) points to:
> > 
> > 71e75c97f97a9645d25fbf3d8e4165a558f18747 is the first bad commit
> > commit 71e75c97f97a9645d25fbf3d8e4165a558f18747
> > Author: Christoph Hellwig <hch@lst.de>
> > Date:   Fri Apr 11 19:07:01 2014 +0200
> > 
> >     scsi: convert device_busy to atomic_t
> 
> That's fixed upstream:
> 
> commit 480cadc2b7e0fa2bbab20141efb547dfe0c3707c

Yes, works for both sparc64 and parisc.

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:10:36 2018
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From - Thu Nov 08 21:10:36 2018
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Cc: Arnd Bergmann <arnd@arndb.de>, akpm@linux-foundation.org,
	rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com,
	vgupta@synopsys.com, Geert Uytterhoeven <geert@linux-m68k.org>,
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	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	heiko.carstens@de.ibm.com, Liqin Chen <liqin.linux@gmail
To: Ralf Baechle <ralf@linux-mips.org>
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Hello Maintainers:

Is this patch OK? If it pass basic checking, please let me know, and I
shall try to make another related patch for KBuild (I can do nothing
related with Kbuild, before get confirmation for this patch).

Thanks.

On 8/15/14 17:01, Chen Gang wrote:
> 
> 
> On 8/15/14 6:14, Chen Gang wrote:
>> On 08/15/2014 02:04 AM, Ralf Baechle wrote:
>>>
>>
>> OK, thanks, I assumes when support both endian, the default choice is
>> CPU_BIG_ENDIAN, although no default value for choice (originally, I did
>> worry about it).
>>
>>> So I think you can just drop the MIPS segment from your patch.
>>>
>>
>> If what I assumes is correct, what you said sounds reasonable to me.
>>
>>
> 
> So for me, it is harmless to add CPU_*_ENDIAN explicitly, and can let
> other members don't need think of.
> 
> By the way, for sh, it is almost the same case, except it contents the
> default value, for me, it is clear enough, so I skip sh architecture in
> this patch.
> 
> 
> Thanks
> 

-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed

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Subject: Re: [PATCH v3] arch: Kconfig: Let all architectures set endian explicitly
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        paulus@samba.org, mpe@ellerman.id.au,
        Mart
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Hello all:

It seems no any additional rejections for it. I guess, I need split the
'big' patch into pieces, and each send to its' related mailing list, so
let it not like a spam. And the schedule may like:

 - Firstly, send patch for "init/Kconfig" to add CPU_*_ENDIAN. If pass
   checking (hope it can be passed checking), then

 - Send each related patch to each related architectures which already
   knew their ENDIAN attributes in config time (24 patches, I guess),
   then

 - Make patch for Kbuild to support __BUILDING_TIME_BIG_ENDIAN__, and
   pass checking (hope I can finish), then

 - Finish left architectures which need __BUILDING_TIME_BIG_ENDIAN__
   (4 patches, I guess).

Welcome any ideas, suggestions, or completions. And if no additional
reply, I shall not send any additional information any more to avoid
spam to other members.


Thanks.

On 08/24/2014 04:38 PM, Chen Gang wrote:
> Hello Maintainers:
> 
> Is this patch OK? If it pass basic checking, please let me know, and I
> shall try to make another related patch for KBuild (I can do nothing
> related with Kbuild, before get confirmation for this patch).
> 
> Thanks.
> 
> On 8/15/14 17:01, Chen Gang wrote:
>>
>>
>> On 8/15/14 6:14, Chen Gang wrote:
>>> On 08/15/2014 02:04 AM, Ralf Baechle wrote:
>>>>
>>>
>>> OK, thanks, I assumes when support both endian, the default choice is
>>> CPU_BIG_ENDIAN, although no default value for choice (originally, I did
>>> worry about it).
>>>
>>>> So I think you can just drop the MIPS segment from your patch.
>>>>
>>>
>>> If what I assumes is correct, what you said sounds reasonable to me.
>>>
>>>
>>
>> So for me, it is harmless to add CPU_*_ENDIAN explicitly, and can let
>> other members don't need think of.
>>
>> By the way, for sh, it is almost the same case, except it contents the
>> default value, for me, it is clear enough, so I skip sh architecture in
>> this patch.
>>
>>
>> Thanks
>>
> 

-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed



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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Wire up seccomp, getrandom and memfd_create syscalls
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With secure computing we only support the SECCOMP_MODE_STRICT mode for now.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 6e75e20..1554a6f 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -321,6 +321,22 @@ source "fs/Kconfig"
 
 source "arch/parisc/Kconfig.debug"
 
+config SECCOMP
+	def_bool y
+	prompt "Enable seccomp to safely compute untrusted bytecode"
+	---help---
+	  This kernel feature is useful for number crunching applications
+	  that may need to compute untrusted bytecode during their
+	  execution. By using pipes or other transports made available to
+	  the process as file descriptors supporting the read/write
+	  syscalls, it's possible to isolate those applications in
+	  their own address space using seccomp. Once seccomp is
+	  enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
+	  and the task is only allowed to execute a few safe syscalls
+	  defined by each seccomp mode.
+
+	  If unsure, say Y. Only embedded should say N here.
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff --git a/arch/parisc/include/asm/seccomp.h b/arch/parisc/include/asm/seccomp.h
--- /dev/null
+++ b/arch/parisc/include/asm/seccomp.h
@@ -0,0 +1,16 @@
+#ifndef _ASM_PARISC_SECCOMP_H
+#define _ASM_PARISC_SECCOMP_H
+
+#include <linux/unistd.h>
+
+#define __NR_seccomp_read __NR_read
+#define __NR_seccomp_write __NR_write
+#define __NR_seccomp_exit __NR_exit
+#define __NR_seccomp_sigreturn __NR_rt_sigreturn
+
+#define __NR_seccomp_read_32 __NR_read
+#define __NR_seccomp_write_32 __NR_write
+#define __NR_seccomp_exit_32 __NR_exit
+#define __NR_seccomp_sigreturn_32 __NR_rt_sigreturn
+
+#endif	/* _ASM_PARISC_SECCOMP_H */
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 4b9b10c..a846118 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -60,6 +60,7 @@ struct thread_info {
 #define TIF_NOTIFY_RESUME	8	/* callback before returning to user */
 #define TIF_SINGLESTEP		9	/* single stepping? */
 #define TIF_BLOCKSTEP		10	/* branch stepping? */
+#define TIF_SECCOMP		11	/* secure computing */
 
 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1 << TIF_SIGPENDING)
@@ -70,11 +71,13 @@ struct thread_info {
 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
 #define _TIF_SINGLESTEP		(1 << TIF_SINGLESTEP)
 #define _TIF_BLOCKSTEP		(1 << TIF_BLOCKSTEP)
+#define _TIF_SECCOMP		(1 << TIF_SECCOMP)
 
 #define _TIF_USER_WORK_MASK     (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \
                                  _TIF_NEED_RESCHED)
 #define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP |	\
-				 _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT)
+				 _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT | \
+				 _TIF_SECCOMP)
 
 #ifdef CONFIG_64BIT
 # ifdef CONFIG_COMPAT
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 47e0e21..8667f18 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -830,8 +830,11 @@
 #define __NR_sched_getattr	(__NR_Linux + 335)
 #define __NR_utimes		(__NR_Linux + 336)
 #define __NR_renameat2		(__NR_Linux + 337)
+#define __NR_seccomp		(__NR_Linux + 338)
+#define __NR_getrandom		(__NR_Linux + 339)
+#define __NR_memfd_create	(__NR_Linux + 340)
 
-#define __NR_Linux_syscalls	(__NR_renameat2 + 1)
+#define __NR_Linux_syscalls	(__NR_memfd_create + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index e842ee2..3bab724 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -270,6 +270,12 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 {
 	long ret = 0;
 
+	/* Do the secure computing check first. */
+	if (secure_computing(regs->gr[20])) {
+		/* seccomp failures shouldn't expose any additional code. */
+		return -1;
+	}
+
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
 	    tracehook_report_syscall_entry(regs))
 		ret = -1L;
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 84c5d3a..b563d9c 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -433,6 +433,9 @@
 	ENTRY_SAME(sched_getattr)	/* 335 */
 	ENTRY_COMP(utimes)
 	ENTRY_SAME(renameat2)
+	ENTRY_SAME(seccomp)
+	ENTRY_SAME(getrandom)
+	ENTRY_SAME(memfd_create)	/* 340 */
 
 	/* Nothing yet */
 
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From - Thu Nov 08 21:10:36 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [RFC PATCHv2] 64bit LWS CAS
Date: Tue, 26 Aug 2014 22:11:43 +0200
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To: Guy Martin <gmsoft@tuxicoman.be>
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Hi Guy,

should we try to do a last round of cleanup of this patch, since
I would like to include it in the next push to Linus...

On 07/30/2014 11:17 AM, Guy Martin wrote:
>>> Regading the GCC counterpart of the implementation, I'm not sure about
>>> the way to proceed.
>>>
>>> Should I try to detect the presence of the new LWS and use it for all
>>> CAS operations at init time ?
>>
>> I leave this up to Dave & Carlos to answer.

I think it's OK to stay using the existing 32bit implementation for 32bit CAS,
and just use the new one for 8/16/64 bit CAS.
And maybe: If the LWS fails, just crash the application.

>> Should we maybe drop the whole ENABLE_LWS_DEBUG thing? Was it ever used/enabled?
>
> Indeed, I have not tested it and I dropped it in this new patch.

Good.
In comments at the top still include info about the debug case:
-> "If debugging is DISabled:..."

>>> I guess that using the new LWS unconditionally for all CAS operations
>>> isn't an option since it will break for newer gcc on old kernels.
>>
>> Up to now we only had the 32bit CAS working correctly, so we shouldn't care much
>> about the other CAS anyway.
>> And if we get it backported into all relevant kernels before we change gcc
>> I would prefer this hard break...

I'm still thinking this is the right way.

Your patch had some whitespace errors too.
Please run it through the scripts/checkpatch tool in the kernel tree.

If you like I can take care of the suggested changes and send a revised patch for you?
Just let me know.

Helge
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From: Guy Martin <gmsoft@tuxicoman.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [RFC PATCHv2] 64bit LWS CAS
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 Content preview:  Hi Helge, On Tue, 26 Aug 2014 22:11:43 +0200 Helge Deller
   <deller@gmx.de> wrote: > should we try to do a last round of cleanup of this
    patch, since > I would like to include it in the next push to Linus... >
   > On 07/30/2014 11:17 AM, Guy Martin wrote: > >>> Regading the GCC counterpart
    of the implementation, I'm not sure > >>> about the way to proceed. > >>>
    > >>> Should I try to detect the presence of the new LWS and use it for >
    >>> all CAS operations at init time ? > >> > >> I leave this u 
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Hi Helge,

On Tue, 26 Aug 2014 22:11:43 +0200
Helge Deller <deller@gmx.de> wrote:

> should we try to do a last round of cleanup of this patch, since
> I would like to include it in the next push to Linus...
> 
> On 07/30/2014 11:17 AM, Guy Martin wrote:
> >>> Regading the GCC counterpart of the implementation, I'm not sure
> >>> about the way to proceed.
> >>>
> >>> Should I try to detect the presence of the new LWS and use it for
> >>> all CAS operations at init time ?
> >>
> >> I leave this up to Dave & Carlos to answer.
> 
> I think it's OK to stay using the existing 32bit implementation for
> 32bit CAS, and just use the new one for 8/16/64 bit CAS.
> And maybe: If the LWS fails, just crash the application.

I seems like the best solution, at least apps will not use a broken
implementation for 8/16bit.

> >> Should we maybe drop the whole ENABLE_LWS_DEBUG thing? Was it ever
> >> used/enabled?
> >
> > Indeed, I have not tested it and I dropped it in this new patch.
> 
> Good.
> In comments at the top still include info about the debug case:
> -> "If debugging is DISabled:..."

Indeed.

> >>> I guess that using the new LWS unconditionally for all CAS
> >>> operations isn't an option since it will break for newer gcc on
> >>> old kernels.
> >>
> >> Up to now we only had the 32bit CAS working correctly, so we
> >> shouldn't care much about the other CAS anyway.
> >> And if we get it backported into all relevant kernels before we
> >> change gcc I would prefer this hard break...
> 
> I'm still thinking this is the right way.
> 
> Your patch had some whitespace errors too.
> Please run it through the scripts/checkpatch tool in the kernel tree.
> 
> If you like I can take care of the suggested changes and send a
> revised patch for you? Just let me know.


Please go ahead ! I just became a father and as you can imagine, I have
very little time to spend on hacking things up :)

Also, I'm not sure that the asm exception tables are working
correctly. I managed to crash my kernel on several occasions while
passing bad values, causing an invalid pointer dereference.


I'll try to work on the gcc patches but it won't be this week, maybe
next week, or I'll have more time in 2 weeks. If someone wants to step
in, feel free to do so too.

Regards,
  Guy

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From - Thu Nov 08 21:10:36 2018
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From: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.serial
Subject: [PATCH 1/3] parisc/uapi: Add definition of TIOC[SG]RS485
Date: Tue,  9 Sep 2014 20:06:31 +0200
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To: "James E . J . Bottomley" <jejb@parisc-linux.org>,
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Commit: e676253b19b2d269cccf67fdb1592120a0cd0676 (serial/8250: Add
support for RS485 IOCTLs), adds support for RS485 ioctls for 825_core on
all the archs. Unfortunaltely the definition of TIOCSRS485 and
TIOCGRS485 was missing on the ioctls.h file

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
---
 arch/parisc/include/uapi/asm/ioctls.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
index 66719c3..3af2d02 100644
--- a/arch/parisc/include/uapi/asm/ioctls.h
+++ b/arch/parisc/include/uapi/asm/ioctls.h
@@ -50,6 +50,8 @@
 #define TCSETS2		_IOW('T',0x2B, struct termios2)
 #define TCSETSW2	_IOW('T',0x2C, struct termios2)
 #define TCSETSF2	_IOW('T',0x2D, struct termios2)
+#define TIOCGRS485	0x542E
+#define TIOCSRS485	0x542F
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
 #define TIOCGDEV	_IOR('T',0x32, int)  /* Get primary device node of /dev/console */
-- 
2.1.0

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Subject: Re: [PATCH 1/3] parisc/uapi: Add definition of TIOC[SG]RS485
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On Tue, Sep 09, 2014 at 08:06:31PM +0200, Ricardo Ribalda Delgado wrote:
> Commit: e676253b19b2d269cccf67fdb1592120a0cd0676 (serial/8250: Add
> support for RS485 IOCTLs), adds support for RS485 ioctls for 825_core on
> all the archs. Unfortunaltely the definition of TIOCSRS485 and
> TIOCGRS485 was missing on the ioctls.h file
> 
> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
> ---
>  arch/parisc/include/uapi/asm/ioctls.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
> index 66719c3..3af2d02 100644
> --- a/arch/parisc/include/uapi/asm/ioctls.h
> +++ b/arch/parisc/include/uapi/asm/ioctls.h
> @@ -50,6 +50,8 @@
>  #define TCSETS2		_IOW('T',0x2B, struct termios2)
>  #define TCSETSW2	_IOW('T',0x2C, struct termios2)
>  #define TCSETSF2	_IOW('T',0x2D, struct termios2)
> +#define TIOCGRS485	0x542E
> +#define TIOCSRS485	0x542F

As David pointed out with the sparc patch, please use the proper ioctl
macros for these numbers.

Please redo all of these patches and resend.

thanks,

greg k-h
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Subject: Re: [PATCH 1/3] parisc/uapi: Add definition of TIOC[SG]RS485
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Hello Greg.

 I have just resend one for sparc. Are we sure that we prefer the
macros instead of using the same value on all arches?

Thanks


On Tue, Sep 9, 2014 at 8:43 PM, Greg KH <greg@kroah.com> wrote:
> On Tue, Sep 09, 2014 at 08:06:31PM +0200, Ricardo Ribalda Delgado wrote:
>> Commit: e676253b19b2d269cccf67fdb1592120a0cd0676 (serial/8250: Add
>> support for RS485 IOCTLs), adds support for RS485 ioctls for 825_core on
>> all the archs. Unfortunaltely the definition of TIOCSRS485 and
>> TIOCGRS485 was missing on the ioctls.h file
>>
>> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
>> ---
>>  arch/parisc/include/uapi/asm/ioctls.h | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
>> index 66719c3..3af2d02 100644
>> --- a/arch/parisc/include/uapi/asm/ioctls.h
>> +++ b/arch/parisc/include/uapi/asm/ioctls.h
>> @@ -50,6 +50,8 @@
>>  #define TCSETS2              _IOW('T',0x2B, struct termios2)
>>  #define TCSETSW2     _IOW('T',0x2C, struct termios2)
>>  #define TCSETSF2     _IOW('T',0x2D, struct termios2)
>> +#define TIOCGRS485   0x542E
>> +#define TIOCSRS485   0x542F
>
> As David pointed out with the sparc patch, please use the proper ioctl
> macros for these numbers.
>
> Please redo all of these patches and resend.
>
> thanks,
>
> greg k-h



-- 
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Subject: [PATCH 1/3 v2] parisc/uapi: Add definition of TIOC[SG]RS485
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Commit: e676253b19b2d269cccf67fdb1592120a0cd0676 (serial/8250: Add
support for RS485 IOCTLs), adds support for RS485 ioctls for 825_core on
all the archs. Unfortunaltely the definition of TIOCSRS485 and
TIOCGRS485 was missing on the ioctls.h file

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
---
Changelog:

v2: By GregKH

Follow the ioctl numbering scheme used by the particular
architecture UAPI file you are editing.

 arch/parisc/include/uapi/asm/ioctls.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
index 66719c3..b6572f0 100644
--- a/arch/parisc/include/uapi/asm/ioctls.h
+++ b/arch/parisc/include/uapi/asm/ioctls.h
@@ -50,6 +50,8 @@
 #define TCSETS2		_IOW('T',0x2B, struct termios2)
 #define TCSETSW2	_IOW('T',0x2C, struct termios2)
 #define TCSETSF2	_IOW('T',0x2D, struct termios2)
+#define TIOCGRS485	_IOR('T', 0x2E, struct serial_rs485)
+#define TIOCSRS485	_IOWR('T', 0x2F, struct serial_rs485)
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
 #define TIOCGDEV	_IOR('T',0x32, int)  /* Get primary device node of /dev/console */
-- 
2.1.0

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On Tue, Sep 09, 2014 at 08:46:48PM +0200, Ricardo Ribalda Delgado wrote:
> Hello Greg.
> 
>  I have just resend one for sparc. Are we sure that we prefer the
> macros instead of using the same value on all arches?

Why would using a macro preclude the value being the same on all arches?
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Hello Greg,

I have just resend the macros for the two other arches using the proper macros.

Thanks

On Tue, Sep 9, 2014 at 8:58 PM, Greg KH <greg@kroah.com> wrote:
> On Tue, Sep 09, 2014 at 08:46:48PM +0200, Ricardo Ribalda Delgado wrote:
>> Hello Greg.
>>
>>  I have just resend one for sparc. Are we sure that we prefer the
>> macros instead of using the same value on all arches?
>
> Why would using a macro preclude the value being the same on all arches?



-- 
Ricardo Ribalda

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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: [PATCHv3] Implement gcc 64bit atomic operations and fix the broken
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Hi,

Here is the latest set of patch for the 8/16/64 bit atomic gcc builtins.

On the kernel side a new LWS is implemented allowing for variable size 
CAS.
On gcc's side, the new LWS is used for 8/16/64 bit atomic builtins, 
keeping the old LWS for 32bit ops.
Since 8 and 16 bit ops were broken, it's best to use the new LWS 
unconditionally for these.

Hopefully, these are the final patches !

Regards,
   Guy
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From - Thu Nov 08 21:10:37 2018
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Path: news.gmane.org!not-for-mail
From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc fixes for v3.17
Date: Sat, 13 Sep 2014 23:28:19 +0200
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
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Hi Linus,

please pull the latest parisc architecture fixes for kernel 3.17 from 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.17-1

Most important patch is a new Light Weigth Syscall (LWS) for 8, 16, 32 and 64
bit atomic CAS operations which is required in order to be able to implement
the atomic gcc builtins on our platform.
Other than that, we wire up the seccomp, getrandom and memfd_create syscalls,
fixes a minor off-by-one bug and a wrong printk string.
 
Thanks,
Helge

----------------------------------------------------------------
Dan Carpenter (1):
      parisc: sys_hpux: NUL terminator is one past the end

Guy Martin (1):
      parisc: Implement new LWS CAS supporting 64 bit operations.

Hans Wennborg (1):
      parisc: dino: fix %d confusingly prefixed with 0x in format string

Helge Deller (1):
      parisc: Wire up seccomp, getrandom and memfd_create syscalls

 arch/parisc/Kconfig                   |  16 +++
 arch/parisc/hpux/sys_hpux.c           |   2 +-
 arch/parisc/include/asm/seccomp.h     |  16 +++
 arch/parisc/include/asm/thread_info.h |   5 +-
 arch/parisc/include/uapi/asm/unistd.h |   5 +-
 arch/parisc/kernel/ptrace.c           |   6 +
 arch/parisc/kernel/syscall.S          | 233 +++++++++++++++++++++++++++++++++-
 arch/parisc/kernel/syscall_table.S    |   3 +
 drivers/parisc/dino.c                 |   2 +-
 9 files changed, 280 insertions(+), 8 deletions(-)
 create mode 100644 arch/parisc/include/asm/seccomp.h
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From: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
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Subject: [PATCH] parisc: pdc_stable.c:  Cleaning up unnecessary use of memset in conjunction with strncpy
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Using memset before strncpy just to ensure a trailing null
character is an unnecessary double writing of a string

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
---
 drivers/parisc/pdc_stable.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 0f54ab6..76860ad 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -765,8 +765,8 @@ static ssize_t pdcs_auto_write(struct kobject *kobj,
 		return -EINVAL;
 
 	/* We'll use a local copy of buf */
-	memset(in, 0, count+1);
 	strncpy(in, buf, count);
+	in[count] = '\0';
 
 	/* Current flags are stored in primary boot path entry */
 	pathentry = &pdcspath_entry_primary;
-- 
1.7.10.4

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From - Thu Nov 08 21:10:37 2018
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Please Revert back, your assistance is needed.
---------------------------------------
The Exhibitor at innoTrans, Berlin 2014
Hall : 15.1 / Stand no : 109 
http://www.virtualmarket.innotrans.de/?Action=showCompany&id=346242
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From - Thu Nov 08 21:10:37 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCHv3] Implement gcc 64bit atomic operations and fix the broken
 8/16 bit ones
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Hi Guy,

On 09/12/2014 06:02 PM, Guy Martin wrote:
> Here is the latest set of patch for the 8/16/64 bit atomic gcc builtins.
>
> On the kernel side a new LWS is implemented allowing for variable size CAS.
> On gcc's side, the new LWS is used for 8/16/64 bit atomic builtins, keeping the old LWS for 32bit ops.
> Since 8 and 16 bit ops were broken, it's best to use the new LWS unconditionally for these.

I've pushed your kernel patch upstream for kernel 3.17.
Furthermore I've scheduled it for backporting into kernels >= 3.13.
I would have liked to go back to kernel 3.0, but then more patches would have needed to be backported.

Maybe someone now can start to push the gcc patch upstream?

Thanks!
Helge
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From - Thu Nov 08 21:10:38 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCHv3] Implement gcc 64bit atomic operations and fix the broken 8/16 bit ones
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On 15-Sep-14, at 5:17 PM, Helge Deller wrote:

> Maybe someone now can start to push the gcc patch upstream?

Although I don't have anything specific, this is a subtle area and I  
have had to fix bugs
in this code before.  I would like to see that this code actually  
works in the real world in
code that uses the GCC atomic support (e.g., glib2.0).  I'm still not  
sure we have correct
types in our code (arm revamped some of the types used in their  
implementation).

We have some time before gcc-5.0 is released.  As a new feature, it  
normally would
not be back ported without strong justification.

Dave
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From - Thu Nov 08 21:10:38 2018
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From: Chuck Ebbert <cebbert.lkml@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] Fix end_of_stack() fn and location of stack canary for
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Cc: linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
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To: Helge Deller <deller@gmx.de>
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Aaron Tomlin recently posted patches [1] to enable checking the stack canary on
every task switch. Looking at the canary code, I realized that every arch
(except ia64, which adds some space for register spill above the stack) shares a
definition of end_of_stack() that makes it the first long after the threadinfo.

For stacks that grow down, this low address is correct because the stack starts
at the end of the thread area and grows toward lower addresses. However, for
stacks that grow up, toward higher addresses, this is wrong. (The stack actually
grows away from the canary.) On these archs end_of_stack() should return the 
address of the last long, at the highest possible address for the stack.

[1] http://lkml.org/lkml/2014/9/12/293

Signed-off-by: Chuck Ebbert <cebbert.lkml@gmail.com>

---

Compile tested only, with Aaron's patches applied and the new option
CONFIG_SCHED_STACK_END_CHECK they add enabled. I have no way to test
this any further.

diff a/include/linux/sched.h b/include/linux/sched.h
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2610,7 +2610,11 @@ static inline void setup_thread_stack(struct task_struct *p, struct task_struct
 
 static inline unsigned long *end_of_stack(struct task_struct *p)
 {
+#ifdef CONFIG_STACK_GROWSUP
+	return (unsigned long *)((unsigned long)task_thread_info(p) + THREAD_SIZE) - 1;
+#else
 	return (unsigned long *)(task_thread_info(p) + 1);
+#endif
 }
 
 #endif


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From - Thu Nov 08 21:10:38 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.arm.kernel
Subject: [PATCH 0/6] video: fbdev: use container_of where possible
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Small patchset using container_of instead of casting on first structure member address.

Fabian Frederick (6):
  video: fbdev: stifb.c: use container_of to resolve stifb_info from fb_info
  video: fbdev: sa1100fb.c: use container_of to resolve sa1100fb_info from fb_info
  video: fbdev: controlfb.c: use container_of to resolve fb_info_control from fb_info
  video: fbdev: cyber2000fb.c: use container_of to resolve cfb_info from fb_info
  video: fbdev: pxafb.c: use container_of to resolve pxafb_info/layer from fb_info
  video: fbdev: valkyriefb.c: use container_of to resolve fb_info_valkyrie from fb_info

 drivers/video/fbdev/controlfb.c   | 15 ++++++++++-----
 drivers/video/fbdev/cyber2000fb.c | 16 ++++++++--------
 drivers/video/fbdev/pxafb.c       | 20 ++++++++++----------
 drivers/video/fbdev/sa1100fb.c    | 18 ++++++++++++------
 drivers/video/fbdev/stifb.c       |  4 ++--
 drivers/video/fbdev/valkyriefb.c  | 12 ++++++++----
 6 files changed, 50 insertions(+), 35 deletions(-)

-- 
2.1.0

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Subject: [PATCH 1/6] video: fbdev: stifb.c: use container_of to resolve stifb_info from fb_info
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Use container_of instead of casting first structure member.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
---
PARISC cross-compiled but untested.

 drivers/video/fbdev/stifb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
index cfe8a2f..86621fa 100644
--- a/drivers/video/fbdev/stifb.c
+++ b/drivers/video/fbdev/stifb.c
@@ -918,7 +918,7 @@ static int
 stifb_setcolreg(u_int regno, u_int red, u_int green,
 	      u_int blue, u_int transp, struct fb_info *info)
 {
-	struct stifb_info *fb = (struct stifb_info *) info;
+	struct stifb_info *fb = container_of(info, struct stifb_info, info);
 	u32 color;
 
 	if (regno >= NR_PALETTE)
@@ -978,7 +978,7 @@ stifb_setcolreg(u_int regno, u_int red, u_int green,
 static int
 stifb_blank(int blank_mode, struct fb_info *info)
 {
-	struct stifb_info *fb = (struct stifb_info *) info;
+	struct stifb_info *fb = container_of(info, struct stifb_info, info);
 	int enable = (blank_mode == 0) ? ENABLE : DISABLE;
 
 	switch (fb->id) {
-- 
2.1.0

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From - Thu Nov 08 21:10:38 2018
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From: James Hogan <james.hogan@imgtec.com>
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Subject: Re: [PATCH] Fix end_of_stack() fn and location of stack canary for
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Hi Chuck,

On 16/09/14 08:37, Chuck Ebbert wrote:
>  static inline unsigned long *end_of_stack(struct task_struct *p)
>  {
> +#ifdef CONFIG_STACK_GROWSUP
> +	return (unsigned long *)((unsigned long)task_thread_info(p) + THREAD_SIZE) - 1;

Nit: this line should probably be wrapped to 80 columns.

Other than that, I've tested this on metag and can confirm that it fixes
the following BUG which you would otherwise get during boot with Aaron's
patches:

BUG: failure at kernel/sched/core.c:2664/schedule_debug()!
Kernel panic - not syncing: BUG!

Tested-by: James Hogan <james.hogan@imgtec.com> [metag]
Acked-by: James Hogan <james.hogan@imgtec.com>

Aaron: please can you try to get this patch applied before your patch
series.

Thanks
James
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From - Thu Nov 08 21:10:38 2018
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On Fri, Sep 19, 2014 at 12:21:37PM +0100, James Hogan wrote:
> Hi Chuck,
> 
> On 16/09/14 08:37, Chuck Ebbert wrote:
> >  static inline unsigned long *end_of_stack(struct task_struct *p)
> >  {
> > +#ifdef CONFIG_STACK_GROWSUP
> > +	return (unsigned long *)((unsigned long)task_thread_info(p) + THREAD_SIZE) - 1;
> 
> Nit: this line should probably be wrapped to 80 columns.
> 
> Other than that, I've tested this on metag and can confirm that it fixes
> the following BUG which you would otherwise get during boot with Aaron's
> patches:
> 
> BUG: failure at kernel/sched/core.c:2664/schedule_debug()!
> Kernel panic - not syncing: BUG!
> 
> Tested-by: James Hogan <james.hogan@imgtec.com> [metag]
> Acked-by: James Hogan <james.hogan@imgtec.com>

OK.

Acked-by: Aaron Tomlin <atomlin@redhat.com>

> Aaron: please can you try to get this patch applied before your patch
> series.

Ingo,


I hope it's not too late to get this patch in (once the nit has been
addressed) for CONFIG_STACK_GROWSUP?

Regards,

-- 
Aaron Tomlin
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* Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>:
> Using memset before strncpy just to ensure a trailing null
> character is an unnecessary double writing of a string

Thanks for the patch Rickard!

I've modified it a little (see below) and added it to my tree.

Thanks,
Helge

> Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
> ---
>  drivers/parisc/pdc_stable.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
> index 0f54ab6..76860ad 100644
> --- a/drivers/parisc/pdc_stable.c
> +++ b/drivers/parisc/pdc_stable.c
> @@ -765,8 +765,8 @@ static ssize_t pdcs_auto_write(struct kobject *kobj,
>  		return -EINVAL;
>  
>  	/* We'll use a local copy of buf */
> -	memset(in, 0, count+1);
>  	strncpy(in, buf, count);
> +	in[count] = '\0';
>  
>  	/* Current flags are stored in primary boot path entry */
>  	pathentry = &pdcspath_entry_primary;


parisc: pdc_stable.c: Cleaning up unnecessary use of memset in conjunction with strncpy

Using memset before strncpy just to ensure a trailing null character is
an unnecessary double writing of a string

Patch modified by Helge Deller to additionally reduce stack usage.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 0f54ab6..e4b73c2 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -755,7 +755,7 @@ static ssize_t pdcs_auto_write(struct kobject *kobj,
 {
 	struct pdcspath_entry *pathentry;
 	unsigned char flags;
-	char in[count+1], *temp;
+	char in[8], *temp;
 	char c;
 
 	if (!capable(CAP_SYS_ADMIN))
@@ -765,8 +765,9 @@ static ssize_t pdcs_auto_write(struct kobject *kobj,
 		return -EINVAL;
 
 	/* We'll use a local copy of buf */
-	memset(in, 0, count+1);
+	count = min_t(size_t, count, 7);
 	strncpy(in, buf, count);
+	in[count] = '\0';
 
 	/* Current flags are stored in primary boot path entry */
 	pathentry = &pdcspath_entry_primary;
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: pdc_stable.c: Avoid potential stack overflows
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index e4b73c2..3651c38 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -278,7 +278,7 @@ pdcspath_hwpath_write(struct pdcspath_entry *entry, const char *buf, size_t coun
 {
 	struct hardware_path hwpath;
 	unsigned short i;
-	char in[count+1], *temp;
+	char in[64], *temp;
 	struct device *dev;
 	int ret;
 
@@ -286,8 +286,9 @@ pdcspath_hwpath_write(struct pdcspath_entry *entry, const char *buf, size_t coun
 		return -EINVAL;
 
 	/* We'll use a local copy of buf */
-	memset(in, 0, count+1);
+	count = min_t(size_t, count, sizeof(in)-1);
 	strncpy(in, buf, count);
+	in[count] = '\0';
 	
 	/* Let's clean up the target. 0xff is a blank pattern */
 	memset(&hwpath, 0xff, sizeof(hwpath));
@@ -393,14 +394,15 @@ pdcspath_layer_write(struct pdcspath_entry *entry, const char *buf, size_t count
 {
 	unsigned int layers[6]; /* device-specific info (ctlr#, unit#, ...) */
 	unsigned short i;
-	char in[count+1], *temp;
+	char in[64], *temp;
 
 	if (!entry || !buf || !count)
 		return -EINVAL;
 
 	/* We'll use a local copy of buf */
-	memset(in, 0, count+1);
+	count = min_t(size_t, count, sizeof(in)-1);
 	strncpy(in, buf, count);
+	in[count] = '\0';
 	
 	/* Let's clean up the target. 0 is a blank pattern */
 	memset(&layers, 0, sizeof(layers));
@@ -765,7 +767,7 @@ static ssize_t pdcs_auto_write(struct kobject *kobj,
 		return -EINVAL;
 
 	/* We'll use a local copy of buf */
-	count = min_t(size_t, count, 7);
+	count = min_t(size_t, count, sizeof(in)-1);
 	strncpy(in, buf, count);
 	in[count] = '\0';
 
--
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From: nick <yocto6@gmail.com>
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Subject: FIX MES in init.c
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Greetings James and Other Maintainers of the Parisc Architecture,
I am wondering about two fix mes in init.c and how to fix them
for being const declared into actual variables. I will paste the
parts of the file for your convenience below.
Thanks,
Nick 
---------------------------------------------------------------------------------
static void __init gateway_init(void)
{
	unsigned long linux_gateway_page_addr;
	/* FIXME: This is 'const' in order to trick the compiler
	   into not treating it as DP-relative data. */
	extern void * const linux_gateway_page;

	linux_gateway_page_addr = LINUX_GATEWAY_ADDR & PAGE_MASK;

	/*
	 * Setup Linux Gateway page.
	 *
	 * The Linux gateway page will reside in kernel space (on virtual
	 * page 0), so it doesn't need to be aliased into user space.
	 */

	map_pages(linux_gateway_page_addr, __pa(&linux_gateway_page),
		  PAGE_SIZE, PAGE_GATEWAY, 1);
}

#ifdef CONFIG_HPUX
void
map_hpux_gateway_page(struct task_struct *tsk, struct mm_struct *mm)
{
	pgd_t *pg_dir;
	pmd_t *pmd;
	pte_t *pg_table;
	unsigned long start_pmd;
	unsigned long start_pte;
	unsigned long address;
	unsigned long hpux_gw_page_addr;
	/* FIXME: This is 'const' in order to trick the compiler
	   into not treating it as DP-relative data. */
	extern void * const hpux_gateway_page;

	hpux_gw_page_addr = HPUX_GATEWAY_ADDR & PAGE_MASK;

	/*
	 * Setup HP-UX Gateway page.
	 *
	 * The HP-UX gateway page resides in the user address space,
	 * so it needs to be aliased into each process.
	 */

	pg_dir = pgd_offset(mm,hpux_gw_page_addr);

#if PTRS_PER_PMD == 1
	start_pmd = 0;
#else
	start_pmd = ((hpux_gw_page_addr >> PMD_SHIFT) & (PTRS_PER_PMD - 1));
#endif
	start_pte = ((hpux_gw_page_addr >> PAGE_SHIFT) & (PTRS_PER_PTE - 1));
---------------------------------------------------------------------------------------

From - Thu Nov 08 21:10:39 2018
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X-Mozilla-Keys:                                                                                 
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Only use -mfast-indirect-calls option for 32-bit kernel builds
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In spite of what the GCC manual says, the -mfast-indirect-calls has  
never been supported in the 64-bit
parisc compiler.  Indirect calls have always been done using function  
descriptors irrespective of the
-mfast-indirect-calls option.

Recently, it was noticed that a function descriptor was always  
requested when the -mfast-indirect-calls option
was specified.  This caused problems when the option was used in  
application code and doesn't make any
sense because the whole point of the option is to avoid using a  
function descriptor for indirect calls.

Fixing this broke 64-bit kernel builds.

I will fix GCC but for now we need the attached change.  This results  
is the same kernel code as before.

Signed-of-by: John David Anglin <dave.anglin@bell.net>
---


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diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 7187664..5db8882 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -48,7 +48,12 @@ cflags-y	:= -pipe
 
 # These flags should be implied by an hppa-linux configuration, but they
 # are not in gcc 3.2.
-cflags-y	+= -mno-space-regs -mfast-indirect-calls
+cflags-y	+= -mno-space-regs
+
+# -mfast-indirect-calls is only relevant for 32-bit kernels.
+ifndef CONFIG_64BIT
+cflags-y	+= -mfast-indirect-calls
+endif
 
 # Currently we save and restore fpregs on all kernel entry/interruption paths.
 # If that gets optimized, we might need to disable the use of fpregs in the
 

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--
John David Anglin	dave.anglin@bell.net


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From - Thu Nov 08 21:10:39 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
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 volatile
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To: Pranith Kumar <bobby.prani@gmail.com>
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On Tue, Sep 23, 2014 at 10:29:50AM -0400, Pranith Kumar wrote:
> Use the much reader friendly ACCESS_ONCE() instead of the cast to volatile. This
> is purely a style change.
> 
> Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>

Looks good to me; I can route it through the locking tree if there's no
objections.



From - Thu Nov 08 21:10:39 2018
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From: Jesper Nilsson <jesper.nilsson@axis.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH] atomic_read: Use ACCESS_ONCE() instead of cast to
 volatile
Date: Tue, 23 Sep 2014 17:40:16 +0200
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To: Pranith Kumar <bobby.prani@gmail.com>
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On Tue, Sep 23, 2014 at 04:29:50PM +0200, Pranith Kumar wrote:
> Use the much reader friendly ACCESS_ONCE() instead of the cast to volatile. This
> is purely a style change.
> 
> Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
> ---
>  arch/alpha/include/asm/atomic.h    | 4 ++--
>  arch/arm/include/asm/atomic.h      | 2 +-
>  arch/arm64/include/asm/atomic.h    | 4 ++--
>  arch/avr32/include/asm/atomic.h    | 2 +-
>  arch/cris/include/asm/atomic.h     | 2 +-

For the CRIS parts:

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com



From - Thu Nov 08 21:10:39 2018
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Subject: [PATCH 2/5] parisc: Set CONFIG_NET=y in defconfigs
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Commit 5d6be6a5 ("scsi_netlink : Make SCSI_NETLINK dependent on NET
instead of selecting NET") removed what happened to be the only instance
of 'select NET'. Defconfigs that were relying on the select now lack
networking support.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 arch/parisc/configs/c8000_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/parisc/configs/c8000_defconfig b/arch/parisc/configs/c8000_defconfig
index 8249ac9..269c23d 100644
--- a/arch/parisc/configs/c8000_defconfig
+++ b/arch/parisc/configs/c8000_defconfig
@@ -33,6 +33,7 @@ CONFIG_PCI_LBA=y
 # CONFIG_PDC_CHASSIS_WARN is not set
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
 CONFIG_BINFMT_MISC=m
+CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
 CONFIG_XFRM_USER=m
-- 
1.8.4.5


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From - Thu Nov 08 21:10:39 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc fixes for v3.17
Date: Tue, 23 Sep 2014 21:43:34 +0200
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
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Hi Linus,

please pull a few late fixes for the parisc architecture for kernel 3.17 from 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.17-7

We avoid using -mfast-indirect-calls for 64bit kernel builds to prevent
building an unbootable kernel due to latest gcc changes. In the
pdc_stable/firmware-access driver we fix a few possible stack overflows
and we now call secure_computing_strict() instead of secure_computing()
which fixes upcoming SECCOMP patches in the for-next trees.
 
Thanks,
Helge

----------------------------------------------------------------
Helge Deller (2):
      parisc: ptrace: use secure_computing_strict()
      parisc: pdc_stable.c: Avoid potential stack overflows

John David Anglin (1):
      parisc: Only use -mfast-indirect-calls option for 32-bit kernel builds

Rickard Strandqvist (1):
      parisc: pdc_stable.c: Cleaning up unnecessary use of memset in conjunction with strncpy

 arch/parisc/Makefile        |  7 ++++++-
 arch/parisc/kernel/ptrace.c |  6 ++----
 drivers/parisc/pdc_stable.c | 15 +++++++++------
 3 files changed, 17 insertions(+), 11 deletions(-)
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From - Thu Nov 08 21:10:39 2018
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From: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH] atomic_read: Use ACCESS_ONCE() instead of cast to
 volatile
Date: Tue, 23 Sep 2014 21:43:27 +0200
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Cc: Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Russell King <linux@arm.linux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
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        Mikael Starvik <starvik@axis.com>,
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        Ingo Moln
To: Pranith Kumar <bobby.prani@gmail.com>
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Around Tue 23 Sep 2014 10:29:50 -0400 or thereabout, Pranith Kumar wrote:
> Use the much reader friendly ACCESS_ONCE() instead of the cast to volatile. This
> is purely a style change.
> 
> Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
> ---
>  arch/alpha/include/asm/atomic.h    | 4 ++--
>  arch/arm/include/asm/atomic.h      | 2 +-
>  arch/arm64/include/asm/atomic.h    | 4 ++--
>  arch/avr32/include/asm/atomic.h    | 2 +-

For the AVR32 related part.

Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>

>  arch/cris/include/asm/atomic.h     | 2 +-
>  arch/frv/include/asm/atomic.h      | 2 +-
>  arch/ia64/include/asm/atomic.h     | 4 ++--
>  arch/m32r/include/asm/atomic.h     | 2 +-
>  arch/m68k/include/asm/atomic.h     | 2 +-
>  arch/mips/include/asm/atomic.h     | 4 ++--
>  arch/parisc/include/asm/atomic.h   | 4 ++--
>  arch/sh/include/asm/atomic.h       | 2 +-
>  arch/sparc/include/asm/atomic_32.h | 2 +-
>  arch/sparc/include/asm/atomic_64.h | 4 ++--
>  arch/x86/include/asm/atomic.h      | 2 +-
>  arch/x86/include/asm/atomic64_64.h | 2 +-
>  arch/xtensa/include/asm/atomic.h   | 2 +-
>  include/asm-generic/atomic.h       | 2 +-
>  18 files changed, 24 insertions(+), 24 deletions(-)

<snipp diff>

-- 
BR, HcE



From - Thu Nov 08 21:10:39 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: serial console broken in v3.17-rc6 ?
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During the release cycle of v3.17 I've seen sometimes a broken serial console output
on the parisc platform. Interestingly all kernel messages printed by the kernel via printk() show
up correctly, but output from userspace (e.g. by the init process during boot) show
up as random bytes.
Since the printk() output is correct the serial port itself and setup is probably correct.
Is parisc the only arch which has this problem, or are other architectures affected as well?
Maybe someone has an idea what could be wrong?
I did not try to bisect it yet.

Thanks,
Helge

Here is a sample output during bootup:

<lots of standard kernel printk output>...
usb 1-2: Manufacturer: SILITEK
rs
      og
  ]f"
s l
random: nonblocking pool is initialized
net eth0: Setting full-duplex based on MII#1 link partner capability of 45e1
tpdsystemd-udevd[744]: starting version 215
.
  eg..
      vp..
          ..Adding 1350652k swap on /dev/sdb6.  Priority:-1 extents:1 across:1350652k
.
  EXT4-fs (sdb5): re-mounted. Opts: (null)

From - Thu Nov 08 21:10:39 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: FIX MES in init.c
Date: Tue, 23 Sep 2014 22:48:31 +0200
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Hi Nick,

On 09/22/2014 09:24 PM, nick wrote:
> Greetings James and Other Maintainers of the Parisc Architecture,
> I am wondering about two fix mes in init.c and how to fix them
> for being const declared into actual variables.
> ...
> 	/* FIXME: This is 'const' in order to trick the compiler
> 	   into not treating it as DP-relative data. */
> 	extern void * const linux_gateway_page;

The FIXME: is misleading. It should maybe better read "HINT:" or something like that.
Trivially it's basically just casting the symbol so that the compiler
will produce the correct code later on.
There is nothing you could try to "fix".

Helge
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From - Thu Nov 08 21:10:39 2018
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From: John David Anglin <dave.anglin@bell.net>
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On 9/23/2014 4:48 PM, Helge Deller wrote:
> The FIXME: is misleading. It should maybe better read "HINT:" or 
> something like that.
> Trivially it's basically just casting the symbol so that the compiler
> will produce the correct code later on.
> There is nothing you could try to "fix".
Why not just remove "FIXME: " from these comments?

Dave

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From - Thu Nov 08 21:10:39 2018
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From: Peter Hurley <peter@hurleysoftware.com>
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Hi Helge,

On 09/23/2014 04:11 PM, Helge Deller wrote:
> During the release cycle of v3.17 I've seen sometimes a broken serial console output
> on the parisc platform. Interestingly all kernel messages printed by the kernel via printk() show
> up correctly, but output from userspace (e.g. by the init process during boot) show
> up as random bytes.
> Since the printk() output is correct the serial port itself and setup is probably correct.
> Is parisc the only arch which has this problem, or are other architectures affected as well?
> Maybe someone has an idea what could be wrong?
> I did not try to bisect it yet.
> 
> Thanks,
> Helge
> 
> Here is a sample output during bootup:
> 
> <lots of standard kernel printk output>...
> usb 1-2: Manufacturer: SILITEK
> rs
>      og
>  ]f"
> s l
> random: nonblocking pool is initialized
> net eth0: Setting full-duplex based on MII#1 link partner capability of 45e1
> tpdsystemd-udevd[744]: starting version 215
> .
>  eg..
>      vp..
>          ..Adding 1350652k swap on /dev/sdb6.  Priority:-1 extents:1 across:1350652k
> .
>  EXT4-fs (sdb5): re-mounted. Opts: (null)

Thanks for the bug report.

1. What serial driver is this?
2. Regression since when?
3. Full dmesg please
4. Output of setserial -a [serial device]
5. Output of stty -a [serial device]

Regards,
Peter Hurley

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From - Thu Nov 08 21:10:39 2018
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Subject: Re: [PATCH] atomic_read: Use ACCESS_ONCE() instead of cast to volatile
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Cc: Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
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        Russell King <linux@arm.linux.org.uk>,
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To: Pranith Kumar <bobby.prani@gmail.com>
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On Tue, Sep 23, 2014 at 6:29 PM, Pranith Kumar <bobby.prani@gmail.com> wrote:
> Use the much reader friendly ACCESS_ONCE() instead of the cast to volatile. This
> is purely a style change.
>
> Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
> ---
>  arch/alpha/include/asm/atomic.h    | 4 ++--
>  arch/arm/include/asm/atomic.h      | 2 +-
>  arch/arm64/include/asm/atomic.h    | 4 ++--
>  arch/avr32/include/asm/atomic.h    | 2 +-
>  arch/cris/include/asm/atomic.h     | 2 +-
>  arch/frv/include/asm/atomic.h      | 2 +-
>  arch/ia64/include/asm/atomic.h     | 4 ++--
>  arch/m32r/include/asm/atomic.h     | 2 +-
>  arch/m68k/include/asm/atomic.h     | 2 +-
>  arch/mips/include/asm/atomic.h     | 4 ++--
>  arch/parisc/include/asm/atomic.h   | 4 ++--
>  arch/sh/include/asm/atomic.h       | 2 +-
>  arch/sparc/include/asm/atomic_32.h | 2 +-
>  arch/sparc/include/asm/atomic_64.h | 4 ++--
>  arch/x86/include/asm/atomic.h      | 2 +-
>  arch/x86/include/asm/atomic64_64.h | 2 +-
>  arch/xtensa/include/asm/atomic.h   | 2 +-
>  include/asm-generic/atomic.h       | 2 +-
>  18 files changed, 24 insertions(+), 24 deletions(-)

For xtensa:
Acked-by: Max Filippov <jcmvbkbc@gmail.com>

-- 
Thanks.
-- Max



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This removes the two fixmes in the file, init.c for compiler hints
for comments related to compiler hints in linux_gateway_page_addr
and map_hpux_gateway_page to change from FIXME to HINT in order
for people reading this code to understand that these are compiler
hints.

Signed-off-by: Nicholas Krause <yocto6@gmail.com>
---
 arch/parisc/mm/init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 0bef864..668102e 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -733,7 +733,7 @@ static void __init pagetable_init(void)
 static void __init gateway_init(void)
 {
 	unsigned long linux_gateway_page_addr;
-	/* FIXME: This is 'const' in order to trick the compiler
+	/* HINT: This is 'const' in order to trick the compiler
 	   into not treating it as DP-relative data. */
 	extern void * const linux_gateway_page;
 
@@ -761,7 +761,7 @@ map_hpux_gateway_page(struct task_struct *tsk, struct mm_struct *mm)
 	unsigned long start_pte;
 	unsigned long address;
 	unsigned long hpux_gw_page_addr;
-	/* FIXME: This is 'const' in order to trick the compiler
+	/* HINT: This is 'const' in order to trick the compiler
 	   into not treating it as DP-relative data. */
 	extern void * const hpux_gateway_page;
 
-- 
1.9.1

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From: Guenter Roeck <linux@roeck-us.net>
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Subject: Re: [PATCH] parisc:Remove unnecessary FIXMES in init.c
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On Tue, Sep 23, 2014 at 09:49:43PM -0400, Nicholas Krause wrote:
> This removes the two fixmes in the file, init.c for compiler hints
> for comments related to compiler hints in linux_gateway_page_addr
> and map_hpux_gateway_page to change from FIXME to HINT in order
> for people reading this code to understand that these are compiler
> hints.
> 

"* const" tells the compiler that a pointer is a constant.
It doesn't tell the compiler that the data shall not be treated
as DP-relative.

FIXME as in: We should find a better way to tell the compiler to
not treat this data as DP-relative.

Can you please stop this ?

Guenter

> Signed-off-by: Nicholas Krause <yocto6@gmail.com>
> ---
>  arch/parisc/mm/init.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> index 0bef864..668102e 100644
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -733,7 +733,7 @@ static void __init pagetable_init(void)
>  static void __init gateway_init(void)
>  {
>  	unsigned long linux_gateway_page_addr;
> -	/* FIXME: This is 'const' in order to trick the compiler
> +	/* HINT: This is 'const' in order to trick the compiler
>  	   into not treating it as DP-relative data. */
>  	extern void * const linux_gateway_page;
>  
> @@ -761,7 +761,7 @@ map_hpux_gateway_page(struct task_struct *tsk, struct mm_struct *mm)
>  	unsigned long start_pte;
>  	unsigned long address;
>  	unsigned long hpux_gw_page_addr;
> -	/* FIXME: This is 'const' in order to trick the compiler
> +	/* HINT: This is 'const' in order to trick the compiler
>  	   into not treating it as DP-relative data. */
>  	extern void * const hpux_gateway_page;
>  
> -- 
> 1.9.1
> 
> --
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From: nick <yocto6@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc:Remove unnecessary FIXMES in init.c
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On 14-09-24 01:30 AM, Guenter Roeck wrote:
> On Tue, Sep 23, 2014 at 09:49:43PM -0400, Nicholas Krause wrote:
>> This removes the two fixmes in the file, init.c for compiler hints
>> for comments related to compiler hints in linux_gateway_page_addr
>> and map_hpux_gateway_page to change from FIXME to HINT in order
>> for people reading this code to understand that these are compiler
>> hints.
>>
> 
> "* const" tells the compiler that a pointer is a constant.
> It doesn't tell the compiler that the data shall not be treated
> as DP-relative.
> 
> FIXME as in: We should find a better way to tell the compiler to
> not treat this data as DP-relative.
> 
> Can you please stop this ?
> 
> Guenter
> 
>> Signed-off-by: Nicholas Krause <yocto6@gmail.com>
>> ---
>>  arch/parisc/mm/init.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
>> index 0bef864..668102e 100644
>> --- a/arch/parisc/mm/init.c
>> +++ b/arch/parisc/mm/init.c
>> @@ -733,7 +733,7 @@ static void __init pagetable_init(void)
>>  static void __init gateway_init(void)
>>  {
>>  	unsigned long linux_gateway_page_addr;
>> -	/* FIXME: This is 'const' in order to trick the compiler
>> +	/* HINT: This is 'const' in order to trick the compiler
>>  	   into not treating it as DP-relative data. */
>>  	extern void * const linux_gateway_page;
>>  
>> @@ -761,7 +761,7 @@ map_hpux_gateway_page(struct task_struct *tsk, struct mm_struct *mm)
>>  	unsigned long start_pte;
>>  	unsigned long address;
>>  	unsigned long hpux_gw_page_addr;
>> -	/* FIXME: This is 'const' in order to trick the compiler
>> +	/* HINT: This is 'const' in order to trick the compiler
>>  	   into not treating it as DP-relative data. */
>>  	extern void * const hpux_gateway_page;
>>  
>> -- 
>> 1.9.1
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>> Please read the FAQ at  http://www.tux.org/lkml/
>>
>>
Guenter,
I asked the maintainers and I got, 
On 9/23/2014 4:48 PM, Helge Deller wrote:
> The FIXME: is misleading. It should maybe better read "HINT:" or something like that.
> Trivially it's basically just casting the symbol so that the compiler
> will produce the correct code later on.
> There is nothing you could try to "fix".
Why not just remove "FIXME: " from these comments?

Dave
As the reply.
Cheers Nick 
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Subject: Re: [PATCH] parisc:Remove unnecessary FIXMES in init.c
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On 24-Sep-14, at 7:42 AM, nick wrote:

>
>
> On 14-09-24 01:30 AM, Guenter Roeck wrote:
>> On Tue, Sep 23, 2014 at 09:49:43PM -0400, Nicholas Krause wrote:
>>> This removes the two fixmes in the file, init.c for compiler hints
>>> for comments related to compiler hints in linux_gateway_page_addr
>>> and map_hpux_gateway_page to change from FIXME to HINT in order
>>> for people reading this code to understand that these are compiler
>>> hints.
>>>
>>
>> "* const" tells the compiler that a pointer is a constant.
>> It doesn't tell the compiler that the data shall not be treated
>> as DP-relative.
>>
>> FIXME as in: We should find a better way to tell the compiler to
>> not treat this data as DP-relative.
>>
>> Can you please stop this ?
>>
>> Guenter
>>
>>> Signed-off-by: Nicholas Krause <yocto6@gmail.com>
>>> ---
>>> arch/parisc/mm/init.c | 4 ++--
>>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
>>> index 0bef864..668102e 100644
>>> --- a/arch/parisc/mm/init.c
>>> +++ b/arch/parisc/mm/init.c
>>> @@ -733,7 +733,7 @@ static void __init pagetable_init(void)
>>> static void __init gateway_init(void)
>>> {
>>> 	unsigned long linux_gateway_page_addr;
>>> -	/* FIXME: This is 'const' in order to trick the compiler
>>> +	/* HINT: This is 'const' in order to trick the compiler
>>> 	   into not treating it as DP-relative data. */
>>> 	extern void * const linux_gateway_page;
>>>
>>> @@ -761,7 +761,7 @@ map_hpux_gateway_page(struct task_struct *tsk,  
>>> struct mm_struct *mm)
>>> 	unsigned long start_pte;
>>> 	unsigned long address;
>>> 	unsigned long hpux_gw_page_addr;
>>> -	/* FIXME: This is 'const' in order to trick the compiler
>>> +	/* HINT: This is 'const' in order to trick the compiler
>>> 	   into not treating it as DP-relative data. */
>>> 	extern void * const hpux_gateway_page;
>>>
>>> -- 
>>> 1.9.1
>>>
>>> --
>>> To unsubscribe from this list: send the line "unsubscribe linux- 
>>> kernel" in
>>> the body of a message to majordomo@vger.kernel.org
>>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>> Please read the FAQ at  http://www.tux.org/lkml/
>>>
>>>
> Guenter,
> I asked the maintainers and I got,
> On 9/23/2014 4:48 PM, Helge Deller wrote:
>> The FIXME: is misleading. It should maybe better read "HINT:" or  
>> something like that.
>> Trivially it's basically just casting the symbol so that the compiler
>> will produce the correct code later on.
>> There is nothing you could try to "fix".
> Why not just remove "FIXME: " from these comments?


The wording of the comment is not good.  You can't "trick" the  
compiler into not
treating a constant as DP-relative data.  Whether or not a constant is  
loaded as an
immediate depends on its value.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:10:40 2018
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From: Nicholas Krause <yocto6@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc:Remove unnecessary FIXMES in init.c
Date: Wed, 24 Sep 2014 10:29:39 -0400
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Cc: Guenter Roeck <linux@roeck-us.net>, jejb@parisc-linux.org,
	deller@gmx.de, akpm@linux-foundation.org,
	Mel Gorman <mgorman@suse.de>,
	"julia.lawall@lip6.fr oneukum@suse.de" <julia.lawall@lip6.fr>,
	Himangi Saraogi <himangi774@gmail.com>,
	linux-parisc@vger.kernel.org,
	"julia.lawall@lip6.fr oneukum@suse.de" <linux-kernel@vger.kernel.org>
To: John David Anglin <dave.anglin@bell.net>
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On Wed, Sep 24, 2014 at 8:42 AM, John David Anglin <dave.anglin@bell.net> wrote:
> On 24-Sep-14, at 7:42 AM, nick wrote:
>
>>
>>
>> On 14-09-24 01:30 AM, Guenter Roeck wrote:
>>>
>>> On Tue, Sep 23, 2014 at 09:49:43PM -0400, Nicholas Krause wrote:
>>>>
>>>> This removes the two fixmes in the file, init.c for compiler hints
>>>> for comments related to compiler hints in linux_gateway_page_addr
>>>> and map_hpux_gateway_page to change from FIXME to HINT in order
>>>> for people reading this code to understand that these are compiler
>>>> hints.
>>>>
>>>
>>> "* const" tells the compiler that a pointer is a constant.
>>> It doesn't tell the compiler that the data shall not be treated
>>> as DP-relative.
>>>
>>> FIXME as in: We should find a better way to tell the compiler to
>>> not treat this data as DP-relative.
>>>
>>> Can you please stop this ?
>>>
>>> Guenter
>>>
>>>> Signed-off-by: Nicholas Krause <yocto6@gmail.com>
>>>> ---
>>>> arch/parisc/mm/init.c | 4 ++--
>>>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>>>
>>>> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
>>>> index 0bef864..668102e 100644
>>>> --- a/arch/parisc/mm/init.c
>>>> +++ b/arch/parisc/mm/init.c
>>>> @@ -733,7 +733,7 @@ static void __init pagetable_init(void)
>>>> static void __init gateway_init(void)
>>>> {
>>>>         unsigned long linux_gateway_page_addr;
>>>> -       /* FIXME: This is 'const' in order to trick the compiler
>>>> +       /* HINT: This is 'const' in order to trick the compiler
>>>>            into not treating it as DP-relative data. */
>>>>         extern void * const linux_gateway_page;
>>>>
>>>> @@ -761,7 +761,7 @@ map_hpux_gateway_page(struct task_struct *tsk,
>>>> struct mm_struct *mm)
>>>>         unsigned long start_pte;
>>>>         unsigned long address;
>>>>         unsigned long hpux_gw_page_addr;
>>>> -       /* FIXME: This is 'const' in order to trick the compiler
>>>> +       /* HINT: This is 'const' in order to trick the compiler
>>>>            into not treating it as DP-relative data. */
>>>>         extern void * const hpux_gateway_page;
>>>>
>>>> --
>>>> 1.9.1
>>>>
>>>> --
>>>> To unsubscribe from this list: send the line "unsubscribe linux-kernel"
>>>> in
>>>> the body of a message to majordomo@vger.kernel.org
>>>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>>> Please read the FAQ at  http://www.tux.org/lkml/
>>>>
>>>>
>> Guenter,
>> I asked the maintainers and I got,
>> On 9/23/2014 4:48 PM, Helge Deller wrote:
>>>
>>> The FIXME: is misleading. It should maybe better read "HINT:" or
>>> something like that.
>>> Trivially it's basically just casting the symbol so that the compiler
>>> will produce the correct code later on.
>>> There is nothing you could try to "fix".
>>
>> Why not just remove "FIXME: " from these comments?
>
>
>
> The wording of the comment is not good.  You can't "trick" the compiler into
> not
> treating a constant as DP-relative data.  Whether or not a constant is
> loaded as an
> immediate depends on its value.
>
> Dave
> --
> John David Anglin       dave.anglin@bell.net
>
>
>
Are stating I need to change the wording of  my commit or the comment?
Nick
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: Re: serial console broken in v3.17-rc6 ?
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To: Peter Hurley <peter@hurleysoftware.com>,
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Hi Peter,

On 09/23/2014 11:08 PM, Peter Hurley wrote:
> On 09/23/2014 04:11 PM, Helge Deller wrote:
>> During the release cycle of v3.17 I've seen sometimes a broken serial console output
>> on the parisc platform. Interestingly all kernel messages printed by the kernel via printk() show
>> up correctly, but output from userspace (e.g. by the init process during boot) show
>> up as random bytes.
>> Since the printk() output is correct the serial port itself and setup is probably correct.
>> Is parisc the only arch which has this problem, or are other architectures affected as well?
>> Maybe someone has an idea what could be wrong?
>> I did not try to bisect it yet.
>
> Thanks for the bug report.
>
> 1. What serial driver is this?

Serial port/driver integrated in NS87560 chip:
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 68)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
...
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 3, base_baud = 115200) is a 16550A

The source code for this driver is in drivers/parisc/superio.c,
see e.g. function superio_serial_init().
Maybe something is missing in here which was done to the other serial drivers?

Interestingly the *same* kernel don't show this problem on another (older) parisc
machine, but this older machine uses another serial driver:
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
2:0:4: ttyS0 at MMIO 0xf0105800 (irq = 18, base_baud = 454545) is a 16550A
5:0:2: ttyS1 at MMIO 0xf0202800 (irq = 25, base_baud = 454545) is a 16550A

This (working) machine is using the drivers/tty/serial/8250/8250_gsc.c driver.

> 2. Regression since when?

Kernel 3.17 (3.16 worked)

> 3. Full dmesg please

See below.

> 4. Output of setserial -a [serial device]

root@c3000:~# setserial -a /dev/ttyS0
/dev/ttyS0, Line 0, UART: 16550A, Port: 0x03f8, IRQ: 3
         Baud_base: 115200, close_delay: 50, divisor: 0
         closing_wait: 3000
         Flags: spd_normal

> 5. Output of stty -a [serial device]

root@c3000:~# stty -a -F /dev/ttyS0
speed 9600 baud; rows 24; columns 80; line = 0;
intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W;
lnext = ^V; flush = ^O; min = 1; time = 0;
-parenb -parodd -cmspar cs8 hupcl -cstopb cread clocal -crtscts
-ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr -icrnl -ixon -ixoff -iuclc -ixany -imaxbel -iutf8
-opost -olcuc -ocrnl -onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0
-isig -icanon -iexten -echo -echoe -echok -echonl -noflsh -xcase -tostop -echoprt -echoctl -echoke


Here is the dmesg from git head from today.
The output copy&pasted from serial console, see strange characters at the end:

Linux version 3.17.0-rc6-32bit+ (deller@p100) (gcc version 4.7.2 20121105 (Red Hat 4.7.2-2.aa.20121114svn) (GCC) ) #230 SMP Wed Sep 24 20:23:00 CEST 2014
unwind_init: start = 0x10742550, end = 0x10786df0, entries = 17546
FP[0] enabled: Rev 1 Model 19
The 32-bit Kernel has started...
Default page size is 4KB.
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005dc0 00000481 00000000 00000002 777c3e84 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 19 rev 11 (0x0000026b)
capabilities 0x7
model 9000/785/C3700
Total Memory: 2048 MB
LCD display at f05d0008,f05d0000 registered
PERCPU: Embedded 11 pages/cpu @1197b000 s23200 r8192 d13664 u45056
SMP: bootstrap CPU ID is 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 520192
Kernel command line: HOME=/ root=/dev/sdb5 ip=bootp panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
log_buf_len individual max cpu contribution: 4096 bytes
log_buf_len total cpu_extra contributions: 126976 bytes
log_buf_len min size: 65536 bytes
log_buf_len: 262144 bytes
early log buf free: 63248(96%)
PID hash table entries: 4096 (order: 2, 16384 bytes)
Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 131072 (order: 7, 524288 bytes)
Sorting __ex_table...
Memory: 2067904K/2097152K available (4840K kernel code, 679K rwdata, 1237K rodata, 332K init, 337K bss, 29248K reserved)
virtual kernel memory layout:
    vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
    memory  : 0x10000000 - 0x90000000   (2048 MB)
      .init : 0x10100000 - 0x10153000   ( 332 kB)
      .data : 0x1060d000 - 0x107ec1d0   (1916 kB)
      .text : 0x10153000 - 0x1060d000   (4840 kB)
Hierarchical RCU implementation.
         Additional per-CPU info printed with stalls.
NR_IRQS:96
Console: colour dummy device 128x48
Calibrating delay loop... 1495.85 BogoMIPS (lpj=7479296)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 4096 (order: 2, 16384 bytes)
Mountpoint-cache hash table entries: 4096 (order: 2, 16384 bytes)
Brought up 1 CPUs
devtmpfs: initialized
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. Allegro W2 at 0xfffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
7. Memory at 0xfed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
CPU(s): 1 out of 1 PA8700 (PCX-W2) at 750.000000 MHz online
Setting cache flush threshold to 640 (1 CPUs online)
SBA found Astro 2.1 at 0xfed00000
Elroy version TR4.0 (0x5) found at 0xfed30000
LBA 10:0: PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
pci_bus 0000:00: root bus resource [mem 0xf4000000-0xf47fffff]
pci_bus 0000:00: root bus resource [bus 00]
PCI: Enabled native mode for NS87415 (pif=0x8f)
Elroy version TR4.0 (0x5) found at 0xfed32000
LBA 10:1: PCI host bridge to bus 0000:01
pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
pci_bus 0000:01: root bus resource [mem 0xfa000000-0xfbffffff]
pci_bus 0000:01: root bus resource [mem 0xf4800000-0xf4ffffff]
pci_bus 0000:01: root bus resource [bus 01]
iosapic: hpa not registered for 0000:01:04.0
Elroy version TR4.0 (0x5) found at 0xfed38000
LBA 10:4: PCI host bridge to bus 0000:02
pci_bus 0000:02: root bus resource [io  0x28000-0x29fff] (bus address [0x8000-0x9fff])
pci_bus 0000:02: root bus resource [mem 0xf9000000-0xf9ffffff]
pci_bus 0000:02: root bus resource [mem 0xf6000000-0xf67fffff]
pci_bus 0000:02: root bus resource [bus 02]
iosapic: hpa not registered for 0000:02:03.0
Elroy version TR4.0 (0x5) found at 0xfed3c000
LBA 10:6: PCI host bridge to bus 0000:03
pci_bus 0000:03: root bus resource [io  0x3c000-0x3dfff] (bus address [0xc000-0xdfff])
pci_bus 0000:03: root bus resource [mem 0xf7000000-0xf77fffff]
pci_bus 0000:03: root bus resource [bus 03]
powersw: Soft power switch at 0xf0400804 enabled.
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Switched to clocksource cr16
NET: Registered protocol family 2
TCP established hash table entries: 16384 (order: 4, 65536 bytes)
TCP bind hash table entries: 16384 (order: 7, 524288 bytes)
TCP: Hash tables configured (established 16384 bind 16384)
TCP: reno registered
UDP hash table entries: 1024 (order: 4, 81920 bytes)
UDP-Lite hash table entries: 1024 (order: 4, 81920 bytes)
NET: Registered protocol family 1
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 68)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
Enabling PDC chassis warnings support v0.05
futex hash table entries: 8192 (order: 7, 524288 bytes)
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
msgmni has been set to 4038
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9b
sti 0000:01:04.0: enabling SERR and PARITY (0002 -> 0142)
STI PCI graphic ROM found at f4800000 (64 kB), fb at fa000000 (32 MB)
STI ROM supports 32 bit firmware functions.
STI selected 8x16 framebuffer font VGA8x16 for sticon
     id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
     graphics card name: PCI_GRAFFITIX1280
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIX1280, id: 2d08c0a7, mmio: 0xfa100000
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 3, base_baud = 115200) is a 16550A
console [ttyS0] enabled
console [ttyS0] enabled
bootconsole [ttyB0] disabled
bootconsole [ttyB0] disabled
serial8250: ttyS1 at I/O 0x2f8 (irq = 4, base_baud = 115200) is a 16550A
Linux agpgart interface v0.103
brd: module loaded
loop: module loaded
Uniform Multi-Platform E-IDE driver
ns87415 0000:00:0e.0: IDE controller (0x100b:0x0002 rev 0x03)
ns87415 0000:00:0e.0: 100% native mode on irq 7
     ide0: BM-DMA at 0x0a00-0x0a07
     ide1: BM-DMA at 0x0a08-0x0a0f
hda: CD-532E-B, ATAPI CD/DVD-ROM drive
ide0 at 0xf00-0xf07,0xe02 on irq 7
ide1 at 0xd00-0xd07,0xb02 on irq 7
ide-gd driver 1.18
ide-cd driver 5.00
ide-cd: hda: ATAPI 32X CD-ROM drive, 128kB Cache
cdrom: Uniform CD-ROM driver Revision: 3.20
sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 69
sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
sym0: SCSI BUS mode change from SE to SE.
sym0: SCSI BUS has been reset.
scsi host0: sym-2.2.3
sym1: <896> rev 0x7 at pci 0000:00:0f.1 irq 69
sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi host1: sym-2.2.3
scsi 1:0:5:0: Direct-Access     SEAGATE  ST39102LC        HP01 PQ: 0 ANSI: 2
scsi target1:0:5: tagged command queuing enabled, command queue depth 16.
scsi target1:0:5: Beginning Domain Validation
scsi target1:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 15)
scsi target1:0:5: Domain Validation skipping write tests
scsi target1:0:5: Ending Domain Validation
scsi 1:0:6:0: Direct-Access     HP 36.4G ST336607LC       HPC3 PQ: 0 ANSI: 3
scsi target1:0:6: tagged command queuing enabled, command queue depth 16.
scsi target1:0:6: Beginning Domain Validation
scsi target1:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
scsi target1:0:6: Domain Validation skipping write tests
scsi target1:0:6: Ending Domain Validation
st: Version 20101219, fixed bufsize 32768, s/g segs 256
sd 1:0:5:0: Attached scsi generic sg0 type 0
sd 1:0:6:0: Attached scsi generic sg1 type 0
Linux Tulip driver version 1.1.15 (Feb 27, 2007)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1
net eth0: Digital DS21142/43 Tulip rev 65 at Port 0x1000, 00:30:6e:48:aa:64, IRQ 66
LASI 82596 driver - Revision: 1.30
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci-pci: OHCI PCI platform driver
ohci-pci 0000:00:0e.2: OHCI PCI host controller
sd 1:0:6:0: [sdb] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
ohci-pci 0000:00:0e.2: new USB bus registered, assigned bus number 1
ohci-pci 0000:00:0e.2: irq 1, io mem 0xf4007000
sd 1:0:5:0: [sda] 17773524 512-byte logical blocks: (9.10 GB/8.47 GiB)
sd 1:0:6:0: [sdb] Write Protect is off
usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: OHCI PCI host controller
usb usb1: Manufacturer: Linux 3.17.0-rc6-32bit+ ohci_hcd
usb usb1: SerialNumber: 0000:00:0e.2
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
sd 1:0:5:0: [sda] Write Protect is off
uhci_hcd: USB Universal Host Controller Interface driver
HP SDC: No SDC found.
mousedev: PS/2 mouse device common for all mice
sd 1:0:5:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
device-mapper: uevent: version 1.0.3
device-mapper: ioctl: 4.27.0-ioctl (2013-10-30) initialised: dm-devel@redhat.com
hidraw: raw HID events driver (C) Jiri Kosina
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
TCP: cubic registered
NET: Registered protocol family 17
rtc-generic rtc-generic: setting system clock to 2014-09-24 18:24:47 UTC (1411583087)
sd 1:0:6:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
Sending BOOTP requests .
usb 1-2: new low-speed USB device number 2 using ohci-pci
  OK
  sda: sda1 sda2 sda3 sda4
sd 1:0:5:0: [sda] Attached SCSI disk
  sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 >
sd 1:0:6:0: [sdb] Attached SCSI disk
EXT3-fs (sdb5): error: couldn't mount because of unsupported optional features (240)
EXT2-fs (sdb5): error: couldn't mount because of unsupported optional features (240)
usb 1-2: New USB device found, idVendor=047b, idProduct=0002
usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-2: Product: USB Keyboard and Mouse
usb 1-2: Manufacturer: SILITEK
EXT4-fs (sdb5): mounted filesystem with ordered data mode. Opts: (null)
VFS: Mounted root (ext4 filesystem) readonly on device 8:21.
input: SILITEK USB Keyboard and Mouse as /devices/parisc/10/10:0/pci0000:00/0000:00:0e.2/usb1/1-2/1-2:1.0/0003:047B:0002.0001/input/input0
hid-generic 0003:047B:0002.0001: input,hidraw0: USB HID v1.00 Keyboard [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-2/input0
devtmpfs: mounted
Freeing unused kernel memory: 332K (10100000 - 10153000)
input: SILITEK USB Keyboard and Mouse as /devices/parisc/10/10:0/pci0000:00/0000:00:0e.2/usb1/1-2/1-2:1.1/0003:047B:0002.0002/input/input1
hid-generic 0003:047B:0002.0002: input,hidraw1: USB HID v1.00 Mouse [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-2/input1
rs
      og
  ]f"
s l
    net eth0: Setting full-duplex based on MII#1 link partner capability of 45e1
random: nonblocking pool is initialized
tpdsystemd-udevd[743]: starting version 215
.
  eg..
      vp..
          ..Adding 1350652k swap on /dev/sdb6.  Priority:-1 extents:1 across:1350652k
.
  EXT4-fs (sdb5): re-mounted. Opts: (null)
i.l
    n 5
       .
        EXT4-fs (sdb5): re-mounted. Opts: errors=remount-ro
a..
    y.l
       nsb
          .
           p..
              fnsd
                  p
ve


From - Thu Nov 08 21:10:40 2018
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From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 1/6] video: fbdev: stifb.c: use container_of to resolve
 stifb_info from fb_info
Date: Tue, 30 Sep 2014 13:08:58 +0300
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To: Fabian Frederick <fabf@skynet.be>, <linux-kernel@vger.kernel.org>
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Hi,

On 17/09/14 22:00, Fabian Frederick wrote:
> Use container_of instead of casting first structure member.
>=20
> Signed-off-by: Fabian Frederick <fabf@skynet.be>
> ---
> PARISC cross-compiled but untested.
>=20
>  drivers/video/fbdev/stifb.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>=20
> diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
> index cfe8a2f..86621fa 100644
> --- a/drivers/video/fbdev/stifb.c
> +++ b/drivers/video/fbdev/stifb.c
> @@ -918,7 +918,7 @@ static int
>  stifb_setcolreg(u_int regno, u_int red, u_int green,
>  	      u_int blue, u_int transp, struct fb_info *info)
>  {
> -	struct stifb_info *fb =3D (struct stifb_info *) info;
> +	struct stifb_info *fb =3D container_of(info, struct stifb_info, info)=
;
>  	u32 color;
> =20
>  	if (regno >=3D NR_PALETTE)
> @@ -978,7 +978,7 @@ stifb_setcolreg(u_int regno, u_int red, u_int green=
,
>  static int
>  stifb_blank(int blank_mode, struct fb_info *info)
>  {
> -	struct stifb_info *fb =3D (struct stifb_info *) info;
> +	struct stifb_info *fb =3D container_of(info, struct stifb_info, info)=
;
>  	int enable =3D (blank_mode =3D=3D 0) ? ENABLE : DISABLE;
> =20
>  	switch (fb->id) {
>=20

Thanks, queuing the series for 3.18.

 Tomi



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From - Thu Nov 08 21:10:40 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.power-management.general,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel
Subject: [RFC PATCH 00/16] kernel: Add support for poweroff handler call chain
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Cc: linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
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To: linux-kernel@vger.kernel.org
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Xref: news.gmane.org gmane.linux.ports.parisc:6037 gmane.linux.kernel:1798513 gmane.linux.power-management.general:50357 gmane.linux.ports.arm.kernel:361238 gmane.linux.ports.ia64:24426 gmane.linux.kernel.metag:267 gmane.linux.ports.mips.general:44055 gmane.linux.ports.sh.devel:39631
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/6037>

Various drivers implement architecture and/or device specific means to
remove power from the system.  For the most part, those drivers set the
global variable pm_power_off to point to a function within the driver.

This mechanism has a number of drawbacks.  Typically only one scheme
to remove power is supported (at least if pm_power_off is used).
At least in theory there can be multiple means remove power, some of
which may be less desirable.  For example, some mechanisms may only
power off the CPU or the CPU card, while another may power off the
entire system.  Others may really just execute a restart sequence
or drop into the ROM monitor.  Using pm_power_off can also be racy
if the function pointer is set from a driver built as module, as the
driver may be in the process of being unloaded when pm_power_off is
called.  If there are multiple poweroff handlers in the system, removing
a module with such a handler may inadvertently reset the pointer to
pm_power_off to NULL, leaving the system with no means to remove power.

Introduce a system poweroff handler call chain to solve the described
problems.  This call chain is expected to be executed from the
architecture specific machine_power_off() function.  Drivers providing
system poweroff functionality are expected to register with this call chain.
By using the priority field in the notifier block, callers can control
poweroff handler execution sequence and thus ensure that the poweroff
handler with the optimal capabilities to remove power for a given system
is called first.

The poweroff handler is introduced in multiple steps

1) Implement poweroff handler API.
   Patch 01/16.
2) Ensure that pm_power_off is only called from machine_restart.
   Patches 02/16 and 03/16.
3) Implement call to poweroff handler in architecture specific
   machine_restart code.
   Patches 03/16 to 13/16.
4) Convert all drivers to register with poweroff handler
   instead of setting pm_power_off directly.
   Patches 15/16 and 16/16 (examples).
   This can be done in two steps: First convert all drivers which can
   be built as modules, then convert the remaining drivers (possibly after
   unexporting pm_powr_off).
5) Unexport pm_power_off for all architectures,
   and drop it entirely for architectures where it is not really used.
6) [optional] Convert machine specific architecture code to register 
   with poweroff handler instead of setting pm_power_off directly,
   and remove pm_power_off entirely from the system.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Romain Perier <romain.perier@gmail.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>

----------------------------------------------------------------
Guenter Roeck (16):
      kernel: Add support for poweroff handler call chain
      hwmon: (ab8500) Call kernel_power_off instead of pm_power_off
      parisc: support poweroff through poweroff handler call chain
      arm: support poweroff through poweroff handler call chain
      arm64: support poweroff through poweroff handler call chain
      avr32: support poweroff through poweroff handler call chain
      c6x: support poweroff through poweroff handler call chain
      ia64: support poweroff through poweroff handler call chain
      metag: support poweroff through poweroff handler call chain
      mips: support poweroff through poweroff handler call chain
      sh: support poweroff through poweroff handler call chain
      unicore32: support poweroff through poweroff handler call chain
      x86: support poweroff through poweroff handler call chain
      x86/xen: support poweroff through poweroff handler call chain
      power/reset: restart-poweroff: Register with kernel poweroff handler
      mfd: palmas: Register with kernel poweroff handler

 arch/arm/kernel/process.c              |  2 +
 arch/arm64/kernel/process.c            |  2 +
 arch/avr32/kernel/process.c            |  2 +
 arch/c6x/kernel/process.c              |  2 +
 arch/ia64/kernel/process.c             |  2 +
 arch/metag/kernel/process.c            |  2 +
 arch/mips/kernel/reset.c               |  2 +
 arch/parisc/kernel/process.c           |  7 ++-
 arch/sh/kernel/reboot.c                |  2 +
 arch/unicore32/kernel/process.c        |  2 +
 arch/x86/kernel/reboot.c               |  4 ++
 arch/x86/xen/enlighten.c               |  2 +
 drivers/hwmon/ab8500.c                 |  5 ++-
 drivers/mfd/palmas.c                   | 30 +++++++------
 drivers/parisc/power.c                 |  3 +-
 drivers/power/reset/restart-poweroff.c | 24 +++++-----
 include/linux/mfd/palmas.h             |  3 ++
 include/linux/reboot.h                 |  4 ++
 kernel/reboot.c                        | 81 ++++++++++++++++++++++++++++++++++
 19 files changed, 149 insertions(+), 32 deletions(-)
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From - Thu Nov 08 21:10:40 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.linux.power-management.general,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: [RFC PATCH 01/16] kernel: Add support for poweroff handler call chain
Date: Tue, 30 Sep 2014 11:00:41 -0700
Lines: 174
Approved: news@gmane.org
Message-ID: <1412100056-15517-2-git-send-email-linux@roeck-us.net>
References: <1412100056-15517-1-git-send-email-linux@roeck-us.net>
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Cc: linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-c6x-dev@linux-c6x.org, linux-ia64@vger.kernel.org,
	linux-metag@vger.kernel.org, linux-mips@linux-mips.org,
	linux-parisc@vger.kernel.org, linux-sh@vger.kernel.org,
	xen-devel@lists.xenproject.org, Guenter Roeck <linux@roeck-us.net>,
	Andrew Morton <akpm@linux-foundation.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Romain Perier <romain.perier@gmail.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Russell King <linux@arm.linux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Haavard Skinnemoen <hskinnemoen@gmail.com>,
	Hans-Christian Egtvedt <egtvedt@samfundet.no>,
	Mark Salter <msalter@redhat.com>,
	Aurelien Jacquiot <a-jacquiot@ti.com>,
	Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
	James Hogan <james.hogan@imgtec
To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.power-management.general/50358>

Various drivers implement architecture and/or device specific means to
remove power from the system.  For the most part, those drivers set the
global variable pm_power_off to point to a function within the driver.

This mechanism has a number of drawbacks.  Typically only one scheme
to remove power is supported (at least if pm_power_off is used).
At least in theory there can be multiple means remove power, some of
which may be less desirable. For example, some mechanisms may only
power off the CPU or the CPU card, while another may power off the
entire system.  Others may really just execute a restart sequence
or drop into the ROM monitor. Using pm_power_off can also be racy
if the function pointer is set from a driver built as module, as the
driver may be in the process of being unloaded when pm_power_off is
called. If there are multiple poweroff handlers in the system, removing
a module with such a handler may inadvertently reset the pointer to
pm_power_off to NULL, leaving the system with no means to remove power.

Introduce a system poweroff handler call chain to solve the described
problems.  This call chain is expected to be executed from the
architecture specific machine_power_off() function.  Drivers providing
system poweroff functionality are expected to register with this call chain.
By using the priority field in the notifier block, callers can control
poweroff handler execution sequence and thus ensure that the poweroff
handler with the optimal capabilities to remove power for a given system
is called first.

Cc: Andrew Morton <akpm@linux-foundation.org>
cc: Heiko Stuebner <heiko@sntech.de>
Cc: Romain Perier <romain.perier@gmail.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 include/linux/reboot.h |  4 +++
 kernel/reboot.c        | 81 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 85 insertions(+)

diff --git a/include/linux/reboot.h b/include/linux/reboot.h
index 67fc8fc..b172951 100644
--- a/include/linux/reboot.h
+++ b/include/linux/reboot.h
@@ -38,6 +38,10 @@ extern int reboot_force;
 extern int register_reboot_notifier(struct notifier_block *);
 extern int unregister_reboot_notifier(struct notifier_block *);
 
+extern int register_poweroff_handler(struct notifier_block *);
+extern int unregister_poweroff_handler(struct notifier_block *);
+extern void do_kernel_poweroff(void);
+
 extern int register_restart_handler(struct notifier_block *);
 extern int unregister_restart_handler(struct notifier_block *);
 extern void do_kernel_restart(char *cmd);
diff --git a/kernel/reboot.c b/kernel/reboot.c
index 5925f5a..bdfab65 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c
@@ -106,6 +106,87 @@ EXPORT_SYMBOL(unregister_reboot_notifier);
 
 /*
  *	Notifier list for kernel code which wants to be called
+ *	to power off the system.
+ */
+static ATOMIC_NOTIFIER_HEAD(poweroff_handler_list);
+
+/**
+ *	register_poweroff_handler - Register function to be called to power off
+ *				    the system
+ *	@nb: Info about handler function to be called
+ *	@nb->priority:	Handler priority. Handlers should follow the
+ *			following guidelines for setting priorities.
+ *			0:	Poweroff handler of last resort,
+ *				with limited poweroff capabilities
+ *			128:	Default poweroff handler; use if no other
+ *				poweroff handler is expected to be available,
+ *				and/or if poweroff functionality is
+ *				sufficient to poweroff the entire system
+ *			255:	Highest priority poweroff handler, will
+ *				preempt all other poweroff handlers
+ *
+ *	Registers a function with code to be called to poweroff the
+ *	system.
+ *
+ *	Registered functions will be called from machine_power_off as last
+ *	step of the poweroff sequence (if the architecture specific
+ *	machine_power_off function calls do_kernel_poweroff - see below
+ *	for details).
+ *	Registered functions are expected to poweroff the system immediately.
+ *	If more than one function is registered, the poweroff handler priority
+ *	selects which function will be called first.
+ *
+ *	Poweroff handlers are expected to be registered from non-architecture
+ *	code, typically from drivers. A typical use case would be a system
+ *	where poweroff functionality is provided through a mfd driver. Multiple
+ *	poweroff handlers may exist; for example, one poweroff handler might
+ *	poweroff the entire system, while another only powers off the CPU.
+ *	In such cases, the poweroff handler which only powers off part of the
+ *	hardware is expected to register with low priority to ensure that
+ *	it only runs if no other means to poweroff the system is available.
+ *
+ *	Currently always returns zero, as atomic_notifier_chain_register()
+ *	always returns zero.
+ */
+int register_poweroff_handler(struct notifier_block *nb)
+{
+	return atomic_notifier_chain_register(&poweroff_handler_list, nb);
+}
+EXPORT_SYMBOL(register_poweroff_handler);
+
+/**
+ *	unregister_poweroff_handler - Unregister previously registered
+ *				      poweroff handler
+ *	@nb: Hook to be unregistered
+ *
+ *	Unregisters a previously registered poweroff handler function.
+ *
+ *	Returns zero on success, or %-ENOENT on failure.
+ */
+int unregister_poweroff_handler(struct notifier_block *nb)
+{
+	return atomic_notifier_chain_unregister(&poweroff_handler_list, nb);
+}
+EXPORT_SYMBOL(unregister_poweroff_handler);
+
+/**
+ *	do_kernel_poweroff - Execute kernel poweroff handler call chain
+ *
+ *	Calls functions registered with register_poweroff_handler.
+ *
+ *	Expected to be called from machine_poweroff as last step of the poweroff
+ *	sequence.
+ *
+ *	Powers off the system immediately if a poweroff handler function
+ *	has been registered. Otherwise does nothing.
+ */
+void do_kernel_poweroff(void)
+{
+	atomic_notifier_call_chain(&poweroff_handler_list, 0, NULL);
+}
+
+/*
+ *	Notifier list for kernel code which wants to be called
  *	to restart the system.
  */
 static ATOMIC_NOTIFIER_HEAD(restart_handler_list);
-- 
1.9.1

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From - Thu Nov 08 21:10:40 2018
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From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.linux.kernel,gmane.linux.power-management.general,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: [RFC PATCH 08/16] ia64: support poweroff through poweroff handler call chain
Date: Tue, 30 Sep 2014 11:00:48 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1798515>

The kernel core now supports a poweroff handler call chain
to remove power from the system. Call it if pm_power_off
is set to NULL.

Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/ia64/kernel/process.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index deed6fa..489b0d8 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -677,6 +677,8 @@ machine_power_off (void)
 {
 	if (pm_power_off)
 		pm_power_off();
+	else
+		do_kernel_poweroff();
 	machine_halt();
 }
 
-- 
1.9.1


From - Thu Nov 08 21:10:40 2018
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From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.linux.power-management.general,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: [RFC PATCH 12/16] unicore32: support poweroff through poweroff handler call chain
Date: Tue, 30 Sep 2014 11:00:52 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.power-management.general/50360>

The kernel core now supports a poweroff handler call chain
to remove power from the system. Call it if pm_power_off
is set to NULL.

Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/unicore32/kernel/process.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index b008e99..421fde6 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -66,6 +66,8 @@ void machine_power_off(void)
 {
 	if (pm_power_off)
 		pm_power_off();
+	else
+		do_kernel_poweroff();
 	machine_halt();
 }
 
-- 
1.9.1

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From - Thu Nov 08 21:10:40 2018
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From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.linux.kernel,gmane.linux.power-management.general,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: [RFC PATCH 10/16] mips: support poweroff through poweroff handler call chain
Date: Tue, 30 Sep 2014 11:00:50 -0700
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Xref: news.gmane.org gmane.linux.kernel:1798517 gmane.linux.power-management.general:50361 gmane.linux.ports.arm.kernel:361242 gmane.linux.ports.ia64:24430 gmane.linux.kernel.metag:271 gmane.linux.ports.mips.general:44059 gmane.linux.ports.parisc:6041 gmane.linux.ports.sh.devel:39635
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1798517>

The kernel core now supports a poweroff handler call chain
to remove power from the system. Call it if pm_power_off
is set to NULL.

Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/mips/kernel/reset.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
index 07fc524..c3391d7 100644
--- a/arch/mips/kernel/reset.c
+++ b/arch/mips/kernel/reset.c
@@ -41,4 +41,6 @@ void machine_power_off(void)
 {
 	if (pm_power_off)
 		pm_power_off();
+	else
+		do_kernel_poweroff();
 }
-- 
1.9.1


From - Thu Nov 08 21:10:40 2018
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X-Mozilla-Keys:                                                                                 
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From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.linux.kernel,gmane.linux.power-management.general,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: [RFC PATCH 06/16] avr32: support poweroff through poweroff handler call chain
Date: Tue, 30 Sep 2014 11:00:46 -0700
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Xref: news.gmane.org gmane.linux.kernel:1798518 gmane.linux.power-management.general:50362 gmane.linux.ports.arm.kernel:361243 gmane.linux.ports.ia64:24431 gmane.linux.kernel.metag:272 gmane.linux.ports.mips.general:44060 gmane.linux.ports.parisc:6042 gmane.linux.ports.sh.devel:39636
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1798518>

The kernel core now supports a poweroff handler call chain
to remove power from the system. Call it if pm_power_off
is set to NULL.

Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/avr32/kernel/process.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 42a53e74..6bd6289 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -50,6 +50,8 @@ void machine_power_off(void)
 {
 	if (pm_power_off)
 		pm_power_off();
+	else
+		do_kernel_poweroff();
 }
 
 void machine_restart(char *cmd)
-- 
1.9.1


From - Thu Nov 08 21:10:41 2018
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X-Mozilla-Keys:                                                                                 
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From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.power-management.general,gmane.linux.ports.arm.kernel,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: [RFC PATCH 03/16] parisc: support poweroff through poweroff handler call chain
Date: Tue, 30 Sep 2014 11:00:43 -0700
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The kernel core now supports a poweroff handler call chain
to remove power from the system. Call it from machine_power_off.

Also, do not use pm_power_off as alternate pointer to machine_power_off.
Have the parisc/power driver call kernel_power_off() which in turn will
call machine_power_off().

Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/parisc/kernel/process.c | 7 +++++--
 drivers/parisc/power.c       | 3 +--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 0bbbf0d..21d1ab3 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -42,6 +42,7 @@
 #include <linux/module.h>
 #include <linux/personality.h>
 #include <linux/ptrace.h>
+#include <linux/reboot.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/stddef.h>
@@ -133,7 +134,9 @@ void machine_power_off(void)
 	pdc_soft_power_button(0);
 	
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
-		
+
+	do_kernel_poweroff();
+
 	/* It seems we have no way to power the system off via
 	 * software. The user has to press the button himself. */
 
@@ -141,7 +144,7 @@ void machine_power_off(void)
 	       "Please power this system off now.");
 }
 
-void (*pm_power_off)(void) = machine_power_off;
+void (*pm_power_off)(void);
 EXPORT_SYMBOL(pm_power_off);
 
 /*
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index 90cca5e..de5b2ff 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -95,8 +95,7 @@ static void process_shutdown(void)
 		/* send kill signal */
 		if (kill_cad_pid(SIGINT, 1)) {
 			/* just in case killing init process failed */
-			if (pm_power_off)
-				pm_power_off();
+			kernel_power_off();
 		}
 	}
 }
-- 
1.9.1

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From - Thu Nov 08 21:10:41 2018
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Subject: [RFC PATCH 02/16] hwmon: (ab8500) Call kernel_power_off instead of pm_power_off
Date: Tue, 30 Sep 2014 11:00:42 -0700
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Drivers should not call pm_power_off directly; it is not guaranteed
to be non-NULL. Call kernel_power_off instead.

Cc: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
I already submitted this patch separately as non-RFC. It is included
in this series for completeness.

 drivers/hwmon/ab8500.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/ab8500.c b/drivers/hwmon/ab8500.c
index d844dc8..8b6a4f4 100644
--- a/drivers/hwmon/ab8500.c
+++ b/drivers/hwmon/ab8500.c
@@ -6,7 +6,7 @@
  *
  * When the AB8500 thermal warning temperature is reached (threshold cannot
  * be changed by SW), an interrupt is set, and if no further action is taken
- * within a certain time frame, pm_power off will be called.
+ * within a certain time frame, kernel_power_off will be called.
  *
  * When AB8500 thermal shutdown temperature is reached a hardware shutdown of
  * the AB8500 will occur.
@@ -21,6 +21,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/power/ab8500.h>
+#include <linux/reboot.h>
 #include <linux/slab.h>
 #include <linux/sysfs.h>
 #include "abx500.h"
@@ -106,7 +107,7 @@ static void ab8500_thermal_power_off(struct work_struct *work)
 
 	dev_warn(&abx500_data->pdev->dev, "Power off due to critical temp\n");
 
-	pm_power_off();
+	kernel_power_off();
 }
 
 static ssize_t ab8500_show_name(struct device *dev,
-- 
1.9.1




From - Thu Nov 08 21:10:41 2018
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel,gmane.linux.power-management.general,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: [RFC PATCH 14/16] x86/xen: support poweroff through poweroff handler call chain
Date: Tue, 30 Sep 2014 11:00:54 -0700
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The kernel core now supports a poweroff handler call chain
to remove power from the system. Call it if pm_power_off
is set to NULL.

Cc: Konrad Rzeszutek Wilk <konrad.wilk-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: Boris Ostrovsky <boris.ostrovsky-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
Cc: Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: H. Peter Anvin <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 arch/x86/xen/enlighten.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index c0cb11f..645d00f 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1322,6 +1322,8 @@ static void xen_machine_power_off(void)
 {
 	if (pm_power_off)
 		pm_power_off();
+	else
+		do_kernel_poweroff();
 	xen_reboot(SHUTDOWN_poweroff);
 }
 
-- 
1.9.1

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From - Thu Nov 08 21:10:41 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.power-management.general,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc
Subject: [RFC PATCH 16/16] mfd: palmas: Register with kernel poweroff handler
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/39640>

Register with kernel poweroff handler instead of setting pm_power_off
directly.

Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/mfd/palmas.c       | 30 +++++++++++++++++-------------
 include/linux/mfd/palmas.h |  3 +++
 2 files changed, 20 insertions(+), 13 deletions(-)

diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index 28cb048..e8ef345a 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -19,6 +19,7 @@
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/reboot.h>
 #include <linux/regmap.h>
 #include <linux/err.h>
 #include <linux/mfd/core.h>
@@ -425,20 +426,18 @@ static void palmas_dt_to_pdata(struct i2c_client *i2c,
 			"ti,system-power-controller");
 }
 
-static struct palmas *palmas_dev;
-static void palmas_power_off(void)
+static int palmas_power_off(struct notifier_block *this, unsigned long unused1,
+			    void *unused2)
 {
+	struct palmas *palmas = container_of(this, struct palmas, poweroff_nb);
 	unsigned int addr;
 	int ret, slave;
 
-	if (!palmas_dev)
-		return;
-
 	slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
 	addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_DEV_CTRL);
 
 	ret = regmap_update_bits(
-			palmas_dev->regmap[slave],
+			palmas->regmap[slave],
 			addr,
 			PALMAS_DEV_CTRL_DEV_ON,
 			0);
@@ -446,6 +445,8 @@ static void palmas_power_off(void)
 	if (ret)
 		pr_err("%s: Unable to write to DEV_CTRL_DEV_ON: %d\n",
 				__func__, ret);
+
+	return NOTIFY_DONE;
 }
 
 static unsigned int palmas_features = PALMAS_PMIC_FEATURE_SMPS10_BOOST;
@@ -668,9 +669,15 @@ no_irq:
 		ret = of_platform_populate(node, NULL, NULL, &i2c->dev);
 		if (ret < 0) {
 			goto err_irq;
-		} else if (pdata->pm_off && !pm_power_off) {
-			palmas_dev = palmas;
-			pm_power_off = palmas_power_off;
+		} else if (pdata->pm_off) {
+			palmas->poweroff_nb.notifier_call = palmas_power_off;
+			palmas->poweroff_nb.priority = 128;
+			ret = register_poweroff_handler(&palmas->poweroff_nb);
+			if (ret) {
+				dev_err(palmas->dev,
+					"cannot register poweroff handler");
+				ret = 0;
+			}
 		}
 	}
 
@@ -698,10 +705,7 @@ static int palmas_i2c_remove(struct i2c_client *i2c)
 			i2c_unregister_device(palmas->i2c_clients[i]);
 	}
 
-	if (palmas == palmas_dev) {
-		pm_power_off = NULL;
-		palmas_dev = NULL;
-	}
+	unregister_poweroff_handler(&palmas->poweroff_nb);
 
 	return 0;
 }
diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h
index fb0390a..4715057 100644
--- a/include/linux/mfd/palmas.h
+++ b/include/linux/mfd/palmas.h
@@ -18,6 +18,7 @@
 
 #include <linux/usb/otg.h>
 #include <linux/leds.h>
+#include <linux/notifier.h>
 #include <linux/regmap.h>
 #include <linux/regulator/driver.h>
 #include <linux/extcon.h>
@@ -68,6 +69,8 @@ struct palmas {
 	struct i2c_client *i2c_clients[PALMAS_NUM_CLIENTS];
 	struct regmap *regmap[PALMAS_NUM_CLIENTS];
 
+	struct notifier_block poweroff_nb;
+
 	/* Stored chip id */
 	int id;
 
-- 
1.9.1

--
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From - Thu Nov 08 21:10:41 2018
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Subject: [RFC PATCH 04/16] arm: support poweroff through poweroff handler call chain
Date: Tue, 30 Sep 2014 11:00:44 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/44065>

The kernel core now supports a poweroff handler call chain
to remove power from the system. Call it if pm_power_off
is set to NULL.

Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/arm/kernel/process.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 250b6f6..848c578 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -207,6 +207,8 @@ void machine_power_off(void)
 
 	if (pm_power_off)
 		pm_power_off();
+	else
+		do_kernel_poweroff();
 }
 
 /*
-- 
1.9.1




From - Thu Nov 08 21:10:41 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [RFC PATCH 05/16] arm64: support poweroff through poweroff handler call chain
Date: Tue, 30 Sep 2014 11:00:45 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/44066>

The kernel core now supports a poweroff handler call chain
to remove power from the system. Call it if pm_power_off
is set to NULL.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/arm64/kernel/process.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 398ab05..cc0c63e 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -157,6 +157,8 @@ void machine_power_off(void)
 	smp_send_stop();
 	if (pm_power_off)
 		pm_power_off();
+	else
+		do_kernel_poweroff();
 }
 
 /*
-- 
1.9.1




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Subject: [RFC PATCH 15/16] power/reset: restart-poweroff: Register with kernel poweroff handler
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Register with kernel poweroff handler instead of seting pm_power_off
directly.  Register as poweroff handler of last resort since the driver
does not really power off the system but executes a restart.

Cc: Sebastian Reichel <sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 drivers/power/reset/restart-poweroff.c | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/drivers/power/reset/restart-poweroff.c b/drivers/power/reset/restart-poweroff.c
index edd707e..82d058f 100644
--- a/drivers/power/reset/restart-poweroff.c
+++ b/drivers/power/reset/restart-poweroff.c
@@ -12,35 +12,33 @@
  */
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/notifier.h>
 #include <linux/platform_device.h>
 #include <linux/of_platform.h>
 #include <linux/module.h>
 #include <linux/reboot.h>
-#include <asm/system_misc.h>
 
-static void restart_poweroff_do_poweroff(void)
+static int restart_poweroff_do_poweroff(struct notifier_block *this,
+					unsigned long unused1, void *unused2)
 {
 	reboot_mode = REBOOT_HARD;
 	machine_restart(NULL);
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block restart_poweroff_handler = {
+	.notifier_call = restart_poweroff_do_poweroff,
+};
+
 static int restart_poweroff_probe(struct platform_device *pdev)
 {
-	/* If a pm_power_off function has already been added, leave it alone */
-	if (pm_power_off != NULL) {
-		dev_err(&pdev->dev,
-			"pm_power_off function already registered");
-		return -EBUSY;
-	}
-
-	pm_power_off = &restart_poweroff_do_poweroff;
-	return 0;
+	return register_restart_handler(&restart_poweroff_handler);
 }
 
 static int restart_poweroff_remove(struct platform_device *pdev)
 {
-	if (pm_power_off == &restart_poweroff_do_poweroff)
-		pm_power_off = NULL;
+	unregister_restart_handler(&restart_poweroff_handler);
 
 	return 0;
 }
-- 
1.9.1

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From - Thu Nov 08 21:10:41 2018
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Subject: [RFC PATCH 13/16] x86: support poweroff through poweroff handler call chain
Date: Tue, 30 Sep 2014 11:00:53 -0700
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Xref: news.gmane.org gmane.linux.kernel:1798527 gmane.linux.power-management.general:50370 gmane.linux.ports.arm.kernel:361251 gmane.linux.ports.ia64:24439 gmane.linux.kernel.metag:280 gmane.linux.ports.mips.general:44068 gmane.linux.ports.parisc:6050 gmane.linux.ports.sh.devel:39644
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1798527>

The kernel core now supports a poweroff handler call chain
to remove power from the system. Call it if pm_power_off
is set to NULL.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/x86/kernel/reboot.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 17962e6..c5514aa 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -651,6 +651,10 @@ static void native_machine_power_off(void)
 		if (!reboot_force)
 			machine_shutdown();
 		pm_power_off();
+	} else {
+		if (!reboot_force)
+			machine_shutdown();
+		do_kernel_poweroff();
 	}
 	/* A fallback in case there is no PM info available */
 	tboot_shutdown(TB_SHUTDOWN_HALT);
-- 
1.9.1


From - Thu Nov 08 21:10:41 2018
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X-Mozilla-Keys:                                                                                 
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From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.power-management.general,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc
Subject: [RFC PATCH 11/16] sh: support poweroff through poweroff handler call chain
Date: Tue, 30 Sep 2014 11:00:51 -0700
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Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.ports.sh.devel:39645 gmane.linux.kernel:1798528 gmane.linux.power-management.general:50371 gmane.linux.ports.arm.kernel:361252 gmane.linux.ports.ia64:24440 gmane.linux.kernel.metag:281 gmane.linux.ports.mips.general:44069 gmane.linux.ports.parisc:6051
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/39645>

The kernel core now supports a poweroff handler call chain
to remove power from the system. Call it if pm_power_off
is set to NULL.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/sh/kernel/reboot.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c
index 04afe5b..8e68926 100644
--- a/arch/sh/kernel/reboot.c
+++ b/arch/sh/kernel/reboot.c
@@ -53,6 +53,8 @@ static void native_machine_power_off(void)
 {
 	if (pm_power_off)
 		pm_power_off();
+	else
+		do_kernel_poweroff();
 }
 
 static void native_machine_halt(void)
-- 
1.9.1

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From - Thu Nov 08 21:10:41 2018
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X-Mozilla-Keys:                                                                                 
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From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.power-management.general,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: [RFC PATCH 07/16] c6x: support poweroff through poweroff handler call chain
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To: linux-kernel@vger.kernel.org
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Xref: news.gmane.org gmane.linux.ports.mips.general:44070 gmane.linux.kernel:1798529 gmane.linux.power-management.general:50372 gmane.linux.ports.arm.kernel:361253 gmane.linux.ports.ia64:24441 gmane.linux.kernel.metag:282 gmane.linux.ports.parisc:6052 gmane.linux.ports.sh.devel:39646
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/44070>

The kernel core now supports a poweroff handler call chain
to remove power from the system. Call it if pm_power_off
is set to NULL.

Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/c6x/kernel/process.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 57d2ea8..ddf088e 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -75,6 +75,8 @@ void machine_power_off(void)
 {
 	if (pm_power_off)
 		pm_power_off();
+	else
+		do_kernel_poweroff();
 	halt_loop();
 }
 
-- 
1.9.1




From - Thu Nov 08 21:10:41 2018
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Newsgroups: gmane.linux.power-management.general,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: [RFC PATCH 09/16] metag: support poweroff through poweroff handler call chain
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Archived-At: <http://permalink.gmane.org/gmane.linux.power-management.general/50373>

The kernel core now supports a poweroff handler call chain
to remove power from the system. Call it if pm_power_off
is set to NULL.

Cc: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/metag/kernel/process.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
index 483dff9..ff7f3eb 100644
--- a/arch/metag/kernel/process.c
+++ b/arch/metag/kernel/process.c
@@ -92,6 +92,8 @@ void machine_power_off(void)
 {
 	if (pm_power_off)
 		pm_power_off();
+	else
+		do_kernel_poweroff();
 	smp_send_stop();
 	hard_processor_halt(HALT_OK);
 }
-- 
1.9.1

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From - Thu Nov 08 21:10:42 2018
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From: Peter Hurley <peter@hurleysoftware.com>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: Re: serial console broken in v3.17-rc6 ?
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On 09/24/2014 02:48 PM, Helge Deller wrote:
> Hi Peter,
> 
> On 09/23/2014 11:08 PM, Peter Hurley wrote:
>> On 09/23/2014 04:11 PM, Helge Deller wrote:
>>> During the release cycle of v3.17 I've seen sometimes a broken serial console output
>>> on the parisc platform. Interestingly all kernel messages printed by the kernel via printk() show
>>> up correctly, but output from userspace (e.g. by the init process during boot) show
>>> up as random bytes.
>>> Since the printk() output is correct the serial port itself and setup is probably correct.
>>> Is parisc the only arch which has this problem, or are other architectures affected as well?
>>> Maybe someone has an idea what could be wrong?
>>> I did not try to bisect it yet.
>>
>> Thanks for the bug report.
>>
>> 1. What serial driver is this?
> 
> Serial port/driver integrated in NS87560 chip:
> SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 68)
> SuperIO: Serial port 1 at 0x3f8
> SuperIO: Serial port 2 at 0x2f8
> SuperIO: Parallel port at 0x378
> SuperIO: Floppy controller at 0x3f0
> SuperIO: ACPI at 0x7e0
> SuperIO: USB regulator enabled
> ...
> Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> serial8250: ttyS0 at I/O 0x3f8 (irq = 3, base_baud = 115200) is a 16550A
> 
> The source code for this driver is in drivers/parisc/superio.c,
> see e.g. function superio_serial_init().
> Maybe something is missing in here which was done to the other serial drivers?

[ Sorry for reply delay. ]

Ok. So still the 8250 driver.

What are the remote line settings? (speed/parity/bits/stop)

See if reverting commit ae84db9661cafc63d179e1d985a2c5b841ff0ac4,
'serial: core: Preserve termios c_cflag for console resume', has some effect.
I'm not seeing how this commit would affect your setup, but if it does, I can
provide a debug patch to find out what userspace is doing.

If not, then I think you'll need to bisect drivers/tty/serial. I tried to
analyze if the new generic earlycon was somehow triggering but I got lost
multiple times in the static analysis.

BTW, since superio_serial_init() assigns the port type as PORT_16550A,
superio_serial_init() should be doing:

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index a042d06..36b3adb 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -395,7 +395,7 @@ static void __init superio_serial_init(void)
 	serial_port.iotype	= UPIO_PORT;
 	serial_port.type	= PORT_16550A;
 	serial_port.uartclk	= 115200*16;
-	serial_port.fifosize	= 16;
+	serial_port.flags	= UPF_FIXED_TYPE;
 
 	/* serial port #1 */
 	serial_port.iobase	= sio_dev.sp1_base;

to properly initialize the 8250 port definition. Right now, the fifosize
has no effect because the fifo capabilities is not on.

Also, consider adding

-	serial_port.flags	= UPF_FIXED_TYPE;
+	serial_port.flags	= UPF_FIXED_PORT | UPF_FIXED_TYPE;

to disable reprogramming the irq and ioport from setserial.

Regards,
Peter Hurley

> Interestingly the *same* kernel don't show this problem on another (older) parisc
> machine, but this older machine uses another serial driver:
> Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> 2:0:4: ttyS0 at MMIO 0xf0105800 (irq = 18, base_baud = 454545) is a 16550A
> 5:0:2: ttyS1 at MMIO 0xf0202800 (irq = 25, base_baud = 454545) is a 16550A

PS - Unrelated note. This base_baud is junk ---------------^

> This (working) machine is using the drivers/tty/serial/8250/8250_gsc.c driver.
> 
>> 2. Regression since when?
> 
> Kernel 3.17 (3.16 worked)
> 
>> 3. Full dmesg please
> 
> See below.
> 
>> 4. Output of setserial -a [serial device]
> 
> root@c3000:~# setserial -a /dev/ttyS0
> /dev/ttyS0, Line 0, UART: 16550A, Port: 0x03f8, IRQ: 3
>         Baud_base: 115200, close_delay: 50, divisor: 0
>         closing_wait: 3000
>         Flags: spd_normal
> 
>> 5. Output of stty -a [serial device]
> 
> root@c3000:~# stty -a -F /dev/ttyS0
> speed 9600 baud; rows 24; columns 80; line = 0;
> intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W;
> lnext = ^V; flush = ^O; min = 1; time = 0;
> -parenb -parodd -cmspar cs8 hupcl -cstopb cread clocal -crtscts
> -ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr -icrnl -ixon -ixoff -iuclc -ixany -imaxbel -iutf8
> -opost -olcuc -ocrnl -onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0
> -isig -icanon -iexten -echo -echoe -echok -echonl -noflsh -xcase -tostop -echoprt -echoctl -echoke
> 
> 
> Here is the dmesg from git head from today.
> The output copy&pasted from serial console, see strange characters at the end:
> 
> Linux version 3.17.0-rc6-32bit+ (deller@p100) (gcc version 4.7.2 20121105 (Red Hat 4.7.2-2.aa.20121114svn) (GCC) ) #230 SMP Wed Sep 24 20:23:00 CEST 2014
> unwind_init: start = 0x10742550, end = 0x10786df0, entries = 17546
> FP[0] enabled: Rev 1 Model 19
> The 32-bit Kernel has started...
> Default page size is 4KB.
> bootconsole [ttyB0] enabled
> Initialized PDC Console for debugging.
> Determining PDC firmware type: System Map.
> model 00005dc0 00000481 00000000 00000002 777c3e84 100000f0 00000008 000000b2 000000b2
> vers  00000301
> CPUID vers 19 rev 11 (0x0000026b)
> capabilities 0x7
> model 9000/785/C3700
> Total Memory: 2048 MB
> LCD display at f05d0008,f05d0000 registered
> PERCPU: Embedded 11 pages/cpu @1197b000 s23200 r8192 d13664 u45056
> SMP: bootstrap CPU ID is 0
> Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 520192
> Kernel command line: HOME=/ root=/dev/sdb5 ip=bootp panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
> log_buf_len individual max cpu contribution: 4096 bytes
> log_buf_len total cpu_extra contributions: 126976 bytes
> log_buf_len min size: 65536 bytes
> log_buf_len: 262144 bytes
> early log buf free: 63248(96%)
> PID hash table entries: 4096 (order: 2, 16384 bytes)
> Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
> Inode-cache hash table entries: 131072 (order: 7, 524288 bytes)
> Sorting __ex_table...
> Memory: 2067904K/2097152K available (4840K kernel code, 679K rwdata, 1237K rodata, 332K init, 337K bss, 29248K reserved)
> virtual kernel memory layout:
>    vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
>    memory  : 0x10000000 - 0x90000000   (2048 MB)
>      .init : 0x10100000 - 0x10153000   ( 332 kB)
>      .data : 0x1060d000 - 0x107ec1d0   (1916 kB)
>      .text : 0x10153000 - 0x1060d000   (4840 kB)
> Hierarchical RCU implementation.
>         Additional per-CPU info printed with stalls.
> NR_IRQS:96
> Console: colour dummy device 128x48
> Calibrating delay loop... 1495.85 BogoMIPS (lpj=7479296)
> pid_max: default: 32768 minimum: 301
> Mount-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Mountpoint-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Brought up 1 CPUs
> devtmpfs: initialized
> NET: Registered protocol family 16
> EISA bus registered
> Searching for devices...
> Found devices:
> 1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
> 2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
> 3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
> 4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
> 5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
> 6. Allegro W2 at 0xfffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
> 7. Memory at 0xfed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
> CPU(s): 1 out of 1 PA8700 (PCX-W2) at 750.000000 MHz online
> Setting cache flush threshold to 640 (1 CPUs online)
> SBA found Astro 2.1 at 0xfed00000
> Elroy version TR4.0 (0x5) found at 0xfed30000
> LBA 10:0: PCI host bridge to bus 0000:00
> pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
> pci_bus 0000:00: root bus resource [mem 0xf4000000-0xf47fffff]
> pci_bus 0000:00: root bus resource [bus 00]
> PCI: Enabled native mode for NS87415 (pif=0x8f)
> Elroy version TR4.0 (0x5) found at 0xfed32000
> LBA 10:1: PCI host bridge to bus 0000:01
> pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
> pci_bus 0000:01: root bus resource [mem 0xfa000000-0xfbffffff]
> pci_bus 0000:01: root bus resource [mem 0xf4800000-0xf4ffffff]
> pci_bus 0000:01: root bus resource [bus 01]
> iosapic: hpa not registered for 0000:01:04.0
> Elroy version TR4.0 (0x5) found at 0xfed38000
> LBA 10:4: PCI host bridge to bus 0000:02
> pci_bus 0000:02: root bus resource [io  0x28000-0x29fff] (bus address [0x8000-0x9fff])
> pci_bus 0000:02: root bus resource [mem 0xf9000000-0xf9ffffff]
> pci_bus 0000:02: root bus resource [mem 0xf6000000-0xf67fffff]
> pci_bus 0000:02: root bus resource [bus 02]
> iosapic: hpa not registered for 0000:02:03.0
> Elroy version TR4.0 (0x5) found at 0xfed3c000
> LBA 10:6: PCI host bridge to bus 0000:03
> pci_bus 0000:03: root bus resource [io  0x3c000-0x3dfff] (bus address [0xc000-0xdfff])
> pci_bus 0000:03: root bus resource [mem 0xf7000000-0xf77fffff]
> pci_bus 0000:03: root bus resource [bus 03]
> powersw: Soft power switch at 0xf0400804 enabled.
> vgaarb: loaded
> SCSI subsystem initialized
> usbcore: registered new interface driver usbfs
> usbcore: registered new interface driver hub
> usbcore: registered new device driver usb
> Switched to clocksource cr16
> NET: Registered protocol family 2
> TCP established hash table entries: 16384 (order: 4, 65536 bytes)
> TCP bind hash table entries: 16384 (order: 7, 524288 bytes)
> TCP: Hash tables configured (established 16384 bind 16384)
> TCP: reno registered
> UDP hash table entries: 1024 (order: 4, 81920 bytes)
> UDP-Lite hash table entries: 1024 (order: 4, 81920 bytes)
> NET: Registered protocol family 1
> SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 68)
> SuperIO: Serial port 1 at 0x3f8
> SuperIO: Serial port 2 at 0x2f8
> SuperIO: Parallel port at 0x378
> SuperIO: Floppy controller at 0x3f0
> SuperIO: ACPI at 0x7e0
> SuperIO: USB regulator enabled
> Enabling PDC chassis warnings support v0.05
> futex hash table entries: 8192 (order: 7, 524288 bytes)
> VFS: Disk quotas dquot_6.5.2
> Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> msgmni has been set to 4038
> io scheduler noop registered
> io scheduler deadline registered
> io scheduler cfq registered (default)
> PDC Stable Storage facility v0.30
> STI GSC/PCI core graphics driver Version 0.9b
> sti 0000:01:04.0: enabling SERR and PARITY (0002 -> 0142)
> STI PCI graphic ROM found at f4800000 (64 kB), fb at fa000000 (32 MB)
> STI ROM supports 32 bit firmware functions.
> STI selected 8x16 framebuffer font VGA8x16 for sticon
>     id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
>     graphics card name: PCI_GRAFFITIX1280
> sticon: Initializing STI text console.
> Console: switching to colour STI console 160x64
> Console: switching to colour frame buffer device 160x64
> fb0: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIX1280, id: 2d08c0a7, mmio: 0xfa100000
> Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> serial8250: ttyS0 at I/O 0x3f8 (irq = 3, base_baud = 115200) is a 16550A
> console [ttyS0] enabled
> console [ttyS0] enabled
> bootconsole [ttyB0] disabled
> bootconsole [ttyB0] disabled
> serial8250: ttyS1 at I/O 0x2f8 (irq = 4, base_baud = 115200) is a 16550A
> Linux agpgart interface v0.103
> brd: module loaded
> loop: module loaded
> Uniform Multi-Platform E-IDE driver
> ns87415 0000:00:0e.0: IDE controller (0x100b:0x0002 rev 0x03)
> ns87415 0000:00:0e.0: 100% native mode on irq 7
>     ide0: BM-DMA at 0x0a00-0x0a07
>     ide1: BM-DMA at 0x0a08-0x0a0f
> hda: CD-532E-B, ATAPI CD/DVD-ROM drive
> ide0 at 0xf00-0xf07,0xe02 on irq 7
> ide1 at 0xd00-0xd07,0xb02 on irq 7
> ide-gd driver 1.18
> ide-cd driver 5.00
> ide-cd: hda: ATAPI 32X CD-ROM drive, 128kB Cache
> cdrom: Uniform CD-ROM driver Revision: 3.20
> sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 69
> sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
> sym0: SCSI BUS has been reset.
> sym0: SCSI BUS mode change from SE to SE.
> sym0: SCSI BUS has been reset.
> scsi host0: sym-2.2.3
> sym1: <896> rev 0x7 at pci 0000:00:0f.1 irq 69
> sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
> sym1: SCSI BUS has been reset.
> scsi host1: sym-2.2.3
> scsi 1:0:5:0: Direct-Access     SEAGATE  ST39102LC        HP01 PQ: 0 ANSI: 2
> scsi target1:0:5: tagged command queuing enabled, command queue depth 16.
> scsi target1:0:5: Beginning Domain Validation
> scsi target1:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 15)
> scsi target1:0:5: Domain Validation skipping write tests
> scsi target1:0:5: Ending Domain Validation
> scsi 1:0:6:0: Direct-Access     HP 36.4G ST336607LC       HPC3 PQ: 0 ANSI: 3
> scsi target1:0:6: tagged command queuing enabled, command queue depth 16.
> scsi target1:0:6: Beginning Domain Validation
> scsi target1:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
> scsi target1:0:6: Domain Validation skipping write tests
> scsi target1:0:6: Ending Domain Validation
> st: Version 20101219, fixed bufsize 32768, s/g segs 256
> sd 1:0:5:0: Attached scsi generic sg0 type 0
> sd 1:0:6:0: Attached scsi generic sg1 type 0
> Linux Tulip driver version 1.1.15 (Feb 27, 2007)
> tulip0: no phy info, aborting mtable build
> tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1
> net eth0: Digital DS21142/43 Tulip rev 65 at Port 0x1000, 00:30:6e:48:aa:64, IRQ 66
> LASI 82596 driver - Revision: 1.30
> ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> ohci-pci: OHCI PCI platform driver
> ohci-pci 0000:00:0e.2: OHCI PCI host controller
> sd 1:0:6:0: [sdb] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
> ohci-pci 0000:00:0e.2: new USB bus registered, assigned bus number 1
> ohci-pci 0000:00:0e.2: irq 1, io mem 0xf4007000
> sd 1:0:5:0: [sda] 17773524 512-byte logical blocks: (9.10 GB/8.47 GiB)
> sd 1:0:6:0: [sdb] Write Protect is off
> usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
> usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> usb usb1: Product: OHCI PCI host controller
> usb usb1: Manufacturer: Linux 3.17.0-rc6-32bit+ ohci_hcd
> usb usb1: SerialNumber: 0000:00:0e.2
> hub 1-0:1.0: USB hub found
> hub 1-0:1.0: 3 ports detected
> sd 1:0:5:0: [sda] Write Protect is off
> uhci_hcd: USB Universal Host Controller Interface driver
> HP SDC: No SDC found.
> mousedev: PS/2 mouse device common for all mice
> sd 1:0:5:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
> rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
> device-mapper: uevent: version 1.0.3
> device-mapper: ioctl: 4.27.0-ioctl (2013-10-30) initialised: dm-devel@redhat.com
> hidraw: raw HID events driver (C) Jiri Kosina
> usbcore: registered new interface driver usbhid
> usbhid: USB HID core driver
> TCP: cubic registered
> NET: Registered protocol family 17
> rtc-generic rtc-generic: setting system clock to 2014-09-24 18:24:47 UTC (1411583087)
> sd 1:0:6:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
> Sending BOOTP requests .
> usb 1-2: new low-speed USB device number 2 using ohci-pci
>  OK
>  sda: sda1 sda2 sda3 sda4
> sd 1:0:5:0: [sda] Attached SCSI disk
>  sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 >
> sd 1:0:6:0: [sdb] Attached SCSI disk
> EXT3-fs (sdb5): error: couldn't mount because of unsupported optional features (240)
> EXT2-fs (sdb5): error: couldn't mount because of unsupported optional features (240)
> usb 1-2: New USB device found, idVendor=047b, idProduct=0002
> usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> usb 1-2: Product: USB Keyboard and Mouse
> usb 1-2: Manufacturer: SILITEK
> EXT4-fs (sdb5): mounted filesystem with ordered data mode. Opts: (null)
> VFS: Mounted root (ext4 filesystem) readonly on device 8:21.
> input: SILITEK USB Keyboard and Mouse as /devices/parisc/10/10:0/pci0000:00/0000:00:0e.2/usb1/1-2/1-2:1.0/0003:047B:0002.0001/input/input0
> hid-generic 0003:047B:0002.0001: input,hidraw0: USB HID v1.00 Keyboard [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-2/input0
> devtmpfs: mounted
> Freeing unused kernel memory: 332K (10100000 - 10153000)
> input: SILITEK USB Keyboard and Mouse as /devices/parisc/10/10:0/pci0000:00/0000:00:0e.2/usb1/1-2/1-2:1.1/0003:047B:0002.0002/input/input1
> hid-generic 0003:047B:0002.0002: input,hidraw1: USB HID v1.00 Mouse [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-2/input1
> rs
>      og
>  ]f"
> s l
>    net eth0: Setting full-duplex based on MII#1 link partner capability of 45e1
> random: nonblocking pool is initialized
> tpdsystemd-udevd[743]: starting version 215
> .
>  eg..
>      vp..
>          ..Adding 1350652k swap on /dev/sdb6.  Priority:-1 extents:1 across:1350652k
> .
>  EXT4-fs (sdb5): re-mounted. Opts: (null)
> i.l
>    n 5
>       .
>        EXT4-fs (sdb5): re-mounted. Opts: errors=remount-ro
> a..
>    y.l
>       nsb
>          .
>           p..
>              fnsd
>                  p
> ve
> 


From - Thu Nov 08 21:10:42 2018
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Path: news.gmane.org!not-for-mail
From: Ralf Baechle <ralf@linux-mips.org>
Newsgroups: gmane.linux.kernel,gmane.linux.power-management.general,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: Re: [RFC PATCH 10/16] mips: support poweroff through poweroff
 handler call chain
Date: Wed, 1 Oct 2014 15:32:39 +0200
Lines: 27
Approved: news@gmane.org
Message-ID: <20141001133238.GJ19854@linux-mips.org>
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To: Guenter Roeck <linux@roeck-us.net>
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On Tue, Sep 30, 2014 at 11:00:50AM -0700, Guenter Roeck wrote:

> The kernel core now supports a poweroff handler call chain
> to remove power from the system. Call it if pm_power_off
> is set to NULL.
> 
> Cc: Ralf Baechle <ralf@linux-mips.org>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  arch/mips/kernel/reset.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
> index 07fc524..c3391d7 100644
> --- a/arch/mips/kernel/reset.c
> +++ b/arch/mips/kernel/reset.c
> @@ -41,4 +41,6 @@ void machine_power_off(void)
>  {
>  	if (pm_power_off)
>  		pm_power_off();
> +	else
> +		do_kernel_poweroff();

I'm happy with this as long as in a later version pm_power_off indeed
goes away.

  Ralf

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From: "Helge Deller" <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: Aw: Re: serial console broken in v3.17-rc6 ?
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To: "Peter Hurley" <peter@hurleysoftware.com>
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Hi Peter,

> > Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> > serial8250: ttyS0 at I/O 0x3f8 (irq = 3, base_baud = 115200) is a 16550A
> > 
> > The source code for this driver is in drivers/parisc/superio.c,
> > see e.g. function superio_serial_init().
> > Maybe something is missing in here which was done to the other serial drivers?
> 
> Ok. So still the 8250 driver.
> 
> What are the remote line settings? (speed/parity/bits/stop)

9600,8,N,1

> See if reverting commit ae84db9661cafc63d179e1d985a2c5b841ff0ac4,
> 'serial: core: Preserve termios c_cflag for console resume', has some effect.
> I'm not seeing how this commit would affect your setup, but if it does, I can
> provide a debug patch to find out what userspace is doing.

No, this did not fixed it.

> If not, then I think you'll need to bisect drivers/tty/serial. I tried to
> analyze if the new generic earlycon was somehow triggering but I got lost
> multiple times in the static analysis.
> 
> BTW, since superio_serial_init() assigns the port type as PORT_16550A,
> superio_serial_init() should be doing:
> 
> diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
> index a042d06..36b3adb 100644
> --- a/drivers/parisc/superio.c
> +++ b/drivers/parisc/superio.c
> @@ -395,7 +395,7 @@ static void __init superio_serial_init(void)
>  	serial_port.iotype	= UPIO_PORT;
>  	serial_port.type	= PORT_16550A;
>  	serial_port.uartclk	= 115200*16;
> -	serial_port.fifosize	= 16;
> +	serial_port.flags	= UPF_FIXED_TYPE;
>  
>  	/* serial port #1 */
>  	serial_port.iobase	= sio_dev.sp1_base;
> 
> to properly initialize the 8250 port definition. Right now, the fifosize
> has no effect because the fifo capabilities is not on.
> 
> Also, consider adding
> 
> -	serial_port.flags	= UPF_FIXED_TYPE;
> +	serial_port.flags	= UPF_FIXED_PORT | UPF_FIXED_TYPE;
> 
> to disable reprogramming the irq and ioport from setserial.

That was partly solving the problem!
By looking at the other drivers, I found that they set the UPF_BOOT_AUTOCONF flag too.
So, changing it to 
-       serial_port.fifosize    = 16;
+       serial_port.flags       = UPF_FIXED_PORT | UPF_FIXED_TYPE | UPF_BOOT_AUTOCONF;
solved the problem :-)

Might this be the right fix? If yes, I can push it upstream.
All those flags like UPF_BOOT_AUTOCONF seem to be poorly documented btw.

> > Interestingly the *same* kernel don't show this problem on another (older) parisc
> > machine, but this older machine uses another serial driver:
> > This (working) machine is using the drivers/tty/serial/8250/8250_gsc.c driver.
> > Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> > 2:0:4: ttyS0 at MMIO 0xf0105800 (irq = 18, base_baud = 454545) is a 16550A
> > 5:0:2: ttyS1 at MMIO 0xf0202800 (irq = 25, base_baud = 454545) is a 16550A
> 
> PS - Unrelated note. This base_baud is junk ---------------^

Is it?
The base_baud value is calculated as "port->uartclk / 16" in drivers/tty/serial/serial_core.c.

Looking at the machine specific driver code we have:
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -56,12 +56,12 @@ static int __init serial_init_chip(struct parisc_device *dev)
        /* 7.272727MHz on Lasi.  Assumed the same for Dino, Wax and Timi. */
        uart.port.uartclk       = (dev->id.sversion != 0xad) ?  /* XX */
                                        7272727 : 1843200;

which comes from the description of this chip which can be found in section 7.4 in this PDF file:
https://parisc.wiki.kernel.org/images-parisc/7/79/Lasi_ers.pdf (page "64 of 111" or 76):
7.4 Differences from NS16550A
The Lasi serial port is intended to function just like the real National NS16550A. This includes
behavior that often seems rather stupid. The National NS16550A was chosen over the WD16C552
because the National part came first, and the WD part is supposed to be compatible. There are a few
minor differences, however, between the NS16550A and this implementation.
Baud clock generation is an area of slight differences from the NS16550A. The baudrate reference
frequency is taken from the 40 MHz IO system clock. The frequency 7.2727 MHz is generated by
dividing 40 MHz by 5.5. 

So, probably the calculation of "port->uartclk / 16" is wrong for this chip?

Helge
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From: Peter Hurley <peter@hurleysoftware.com>
Newsgroups: gmane.linux.serial,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: Aw: Re: serial console broken in v3.17-rc6 ?
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On 10/01/2014 10:46 AM, Helge Deller wrote:
> Hi Peter,
> 
>>> Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
>>> serial8250: ttyS0 at I/O 0x3f8 (irq = 3, base_baud = 115200) is a 16550A
>>>
>>> The source code for this driver is in drivers/parisc/superio.c,
>>> see e.g. function superio_serial_init().
>>> Maybe something is missing in here which was done to the other serial drivers?
>>
>> Ok. So still the 8250 driver.
>>
>> What are the remote line settings? (speed/parity/bits/stop)
> 
> 9600,8,N,1
> 
>> See if reverting commit ae84db9661cafc63d179e1d985a2c5b841ff0ac4,
>> 'serial: core: Preserve termios c_cflag for console resume', has some effect.
>> I'm not seeing how this commit would affect your setup, but if it does, I can
>> provide a debug patch to find out what userspace is doing.
> 
> No, this did not fixed it.
> 
>> If not, then I think you'll need to bisect drivers/tty/serial. I tried to
>> analyze if the new generic earlycon was somehow triggering but I got lost
>> multiple times in the static analysis.
>>
>> BTW, since superio_serial_init() assigns the port type as PORT_16550A,
>> superio_serial_init() should be doing:
>>
>> diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
>> index a042d06..36b3adb 100644
>> --- a/drivers/parisc/superio.c
>> +++ b/drivers/parisc/superio.c
>> @@ -395,7 +395,7 @@ static void __init superio_serial_init(void)
>>  	serial_port.iotype	= UPIO_PORT;
>>  	serial_port.type	= PORT_16550A;
>>  	serial_port.uartclk	= 115200*16;
>> -	serial_port.fifosize	= 16;
>> +	serial_port.flags	= UPF_FIXED_TYPE;
>>  
>>  	/* serial port #1 */
>>  	serial_port.iobase	= sio_dev.sp1_base;
>>
>> to properly initialize the 8250 port definition. Right now, the fifosize
>> has no effect because the fifo capabilities is not on.
>>
>> Also, consider adding
>>
>> -	serial_port.flags	= UPF_FIXED_TYPE;
>> +	serial_port.flags	= UPF_FIXED_PORT | UPF_FIXED_TYPE;
>>
>> to disable reprogramming the irq and ioport from setserial.
> 
> That was partly solving the problem!
> By looking at the other drivers, I found that they set the UPF_BOOT_AUTOCONF flag too.
> So, changing it to 
> -       serial_port.fifosize    = 16;
> +       serial_port.flags       = UPF_FIXED_PORT | UPF_FIXED_TYPE | UPF_BOOT_AUTOCONF;
> solved the problem :-)
> 
> Might this be the right fix? If yes, I can push it upstream.

Yes, that's one possible correct fix.

I didn't notice that the superio probe code did not claim the io region for
the serial ports; that's what UPF_BOOT_AUTOCONF does for you.

The regression must be from a change on the parisc arch regarding how/whether io
ports are mapped into the vm.


> All those flags like UPF_BOOT_AUTOCONF seem to be poorly documented btw.

Yeah, you're right about that. It's part of the legacy of one of the oldest
subsystems that's changed and grown by fits and starts; not all of the parts
are completely understood by one person.


>>> Interestingly the *same* kernel don't show this problem on another (older) parisc
>>> machine, but this older machine uses another serial driver:
>>> This (working) machine is using the drivers/tty/serial/8250/8250_gsc.c driver.
>>> Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
>>> 2:0:4: ttyS0 at MMIO 0xf0105800 (irq = 18, base_baud = 454545) is a 16550A
>>> 5:0:2: ttyS1 at MMIO 0xf0202800 (irq = 25, base_baud = 454545) is a 16550A
>>
>> PS - Unrelated note. This base_baud is junk ---------------^
> 
> Is it?
> The base_baud value is calculated as "port->uartclk / 16" in drivers/tty/serial/serial_core.c.
> 
> Looking at the machine specific driver code we have:
> +++ b/drivers/tty/serial/8250/8250_gsc.c
> @@ -56,12 +56,12 @@ static int __init serial_init_chip(struct parisc_device *dev)
>         /* 7.272727MHz on Lasi.  Assumed the same for Dino, Wax and Timi. */
>         uart.port.uartclk       = (dev->id.sversion != 0xad) ?  /* XX */
>                                         7272727 : 1843200;
> 
> which comes from the description of this chip which can be found in section 7.4 in this PDF file:
> https://parisc.wiki.kernel.org/images-parisc/7/79/Lasi_ers.pdf (page "64 of 111" or 76):
> 7.4 Differences from NS16550A
> The Lasi serial port is intended to function just like the real National NS16550A. This includes
> behavior that often seems rather stupid. The National NS16550A was chosen over the WD16C552
> because the National part came first, and the WD part is supposed to be compatible. There are a few
> minor differences, however, between the NS16550A and this implementation.
> Baud clock generation is an area of slight differences from the NS16550A. The baudrate reference
> frequency is taken from the 40 MHz IO system clock. The frequency 7.2727 MHz is generated by
> dividing 40 MHz by 5.5. 
> 
> So, probably the calculation of "port->uartclk / 16" is wrong for this chip?

Wow. No, I was wrong; it's the correct base_baud. I hadn't expected that uartclk value :)

Regards,
Peter Hurley
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From - Thu Nov 08 21:10:42 2018
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Subject: Re: [RFC PATCH 10/16] mips: support poweroff through poweroff
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Date: Wed, 1 Oct 2014 09:26:17 -0700
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To: Ralf Baechle <ralf@linux-mips.org>
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On Wed, Oct 01, 2014 at 03:32:39PM +0200, Ralf Baechle wrote:
> On Tue, Sep 30, 2014 at 11:00:50AM -0700, Guenter Roeck wrote:
> 
> > The kernel core now supports a poweroff handler call chain
> > to remove power from the system. Call it if pm_power_off
> > is set to NULL.
> > 
> > Cc: Ralf Baechle <ralf@linux-mips.org>
> > Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> > ---
> >  arch/mips/kernel/reset.c | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
> > index 07fc524..c3391d7 100644
> > --- a/arch/mips/kernel/reset.c
> > +++ b/arch/mips/kernel/reset.c
> > @@ -41,4 +41,6 @@ void machine_power_off(void)
> >  {
> >  	if (pm_power_off)
> >  		pm_power_off();
> > +	else
> > +		do_kernel_poweroff();
> 
> I'm happy with this as long as in a later version pm_power_off indeed
> goes away.
> 
Yes, that would be the ultimate goal. Hope we can get there.

Guenter
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Fix serial console for machines with serial port on
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Fix the serial console on machines where the serial port is located on
the SuperIO chip.

Signed-off-by: Helge Deller <deller@gmx.de>
CC: Peter Hurley <peter@hurleysoftware.com>
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index a042d06..8be2096 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -395,7 +395,8 @@ static void __init superio_serial_init(void)
 	serial_port.iotype	= UPIO_PORT;
 	serial_port.type	= PORT_16550A;
 	serial_port.uartclk	= 115200*16;
-	serial_port.fifosize	= 16;
+	serial_port.flags	= UPF_FIXED_PORT | UPF_FIXED_TYPE |
+				  UPF_BOOT_AUTOCONF;
 
 	/* serial port #1 */
 	serial_port.iobase	= sio_dev.sp1_base;
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From - Thu Nov 08 21:10:42 2018
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Subject: Re: [Xen-devel] [RFC PATCH 14/16] x86/xen: support poweroff through
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To: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>, <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
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On 30/09/14 19:00, Guenter Roeck wrote:
> The kernel core now supports a poweroff handler call chain
> to remove power from the system. Call it if pm_power_off
> is set to NULL.
> 
> Cc: Konrad Rzeszutek Wilk <konrad.wilk-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
> Cc: Boris Ostrovsky <boris.ostrovsky-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
> Cc: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
> Cc: Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Cc: H. Peter Anvin <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
> Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
> ---
>  arch/x86/xen/enlighten.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
> index c0cb11f..645d00f 100644
> --- a/arch/x86/xen/enlighten.c
> +++ b/arch/x86/xen/enlighten.c
> @@ -1322,6 +1322,8 @@ static void xen_machine_power_off(void)
>  {
>  	if (pm_power_off)
>  		pm_power_off();
> +	else
> +		do_kernel_poweroff();

Why isn't this if (pm_power_off) check in do_kernel_poweroff()?

That way when you finally remove pm_power_off you need only update one
place.  A quick skim of the other archs suggest this would work for them
too.

David
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From - Thu Nov 08 21:10:42 2018
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Subject: Re: [Xen-devel] [RFC PATCH 14/16] x86/xen: support poweroff through
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On 10/02/2014 02:45 AM, David Vrabel wrote:
> On 30/09/14 19:00, Guenter Roeck wrote:
>> The kernel core now supports a poweroff handler call chain
>> to remove power from the system. Call it if pm_power_off
>> is set to NULL.
>>
>> Cc: Konrad Rzeszutek Wilk <konrad.wilk-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
>> Cc: Boris Ostrovsky <boris.ostrovsky-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
>> Cc: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
>> Cc: Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>> Cc: H. Peter Anvin <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
>> Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
>> ---
>>   arch/x86/xen/enlighten.c | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
>> index c0cb11f..645d00f 100644
>> --- a/arch/x86/xen/enlighten.c
>> +++ b/arch/x86/xen/enlighten.c
>> @@ -1322,6 +1322,8 @@ static void xen_machine_power_off(void)
>>   {
>>   	if (pm_power_off)
>>   		pm_power_off();
>> +	else
>> +		do_kernel_poweroff();
>
> Why isn't this if (pm_power_off) check in do_kernel_poweroff()?
>
> That way when you finally remove pm_power_off you need only update one
> place.  A quick skim of the other archs suggest this would work for them
> too.
>

Good idea. I'll do that for the next version of the patch set.

Guenter


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From - Thu Nov 08 21:10:42 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc late fix for v3.17
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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	James Bottomley <James.Bottomley@HansenPartnership.com>,
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Hi Linus,

can you please pull 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.17-8

to fetch one late but trivial patch to fix the serial console on parisc
machines which got broken during the 3.17 release cycle?

Thanks,
Helge

Changelog:
Fix serial console for machines with serial port on superio chip

----------------------------------------------------------------
Helge Deller (1):
      parisc: Fix serial console for machines with serial port on superio chip

 drivers/parisc/superio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

From - Thu Nov 08 21:10:42 2018
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From: Catalin Marinas <catalin.marinas@arm.com>
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Subject: Re: [RFC PATCH 05/16] arm64: support poweroff through poweroff
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To: Guenter Roeck <linux@roeck-us.net>
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On Tue, Sep 30, 2014 at 07:00:45PM +0100, Guenter Roeck wrote:
> The kernel core now supports a poweroff handler call chain
> to remove power from the system. Call it if pm_power_off
> is set to NULL.
> 
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will.deacon@arm.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  arch/arm64/kernel/process.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
> index 398ab05..cc0c63e 100644
> --- a/arch/arm64/kernel/process.c
> +++ b/arch/arm64/kernel/process.c
> @@ -157,6 +157,8 @@ void machine_power_off(void)
>  	smp_send_stop();
>  	if (pm_power_off)
>  		pm_power_off();
> +	else
> +		do_kernel_poweroff();

Acked-by: Catalin Marinas <catalin.marinas@arm.com>

As others already stated, I think we should eventually remove
pm_power_off entirely.

Catalin
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On 10/03/2014 03:30 AM, Catalin Marinas wrote:
> On Tue, Sep 30, 2014 at 07:00:45PM +0100, Guenter Roeck wrote:
>> The kernel core now supports a poweroff handler call chain
>> to remove power from the system. Call it if pm_power_off
>> is set to NULL.
>>
>> Cc: Catalin Marinas <catalin.marinas@arm.com>
>> Cc: Will Deacon <will.deacon@arm.com>
>> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
>> ---
>>   arch/arm64/kernel/process.c | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
>> index 398ab05..cc0c63e 100644
>> --- a/arch/arm64/kernel/process.c
>> +++ b/arch/arm64/kernel/process.c
>> @@ -157,6 +157,8 @@ void machine_power_off(void)
>>   	smp_send_stop();
>>   	if (pm_power_off)
>>   		pm_power_off();
>> +	else
>> +		do_kernel_poweroff();
>
> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
>
> As others already stated, I think we should eventually remove
> pm_power_off entirely.
>

Hi Catalin,
yes, already working on it. As suggested by others, I'll move pm_power_off
to a central location (no need to declare the same variable for each
architecture) and hide the call to it in do_kernel_poweroff() as a
first step. You'll see this in the next version of the series.
This will make it much easier to remove it later on.

Thanks,
Guenter

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Hi,

On Tue, Sep 30, 2014 at 11:00:55AM -0700, Guenter Roeck wrote:
> Register with kernel poweroff handler instead of seting pm_power_off
> directly.  Register as poweroff handler of last resort since the driver
> does not really power off the system but executes a restart.
>=20
> Cc: Sebastian Reichel <sre@kernel.org>
> Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
> Cc: David Woodhouse <dwmw2@infradead.org>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Acked-By: Sebastian Reichel <sre@kernel.org>

-- Sebastian

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On Tue, 2014-09-30 at 11:00 -0700, Guenter Roeck wrote:
> The kernel core now supports a poweroff handler call chain
> to remove power from the system. Call it if pm_power_off
> is set to NULL.
> 
> Cc: Mark Salter <msalter@redhat.com>
> Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---

Acked-by: Mark Salter <msalter@redhat.com>

>  arch/c6x/kernel/process.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
> index 57d2ea8..ddf088e 100644
> --- a/arch/c6x/kernel/process.c
> +++ b/arch/c6x/kernel/process.c
> @@ -75,6 +75,8 @@ void machine_power_off(void)
>  {
>  	if (pm_power_off)
>  		pm_power_off();
> +	else
> +		do_kernel_poweroff();
>  	halt_loop();
>  }
>  





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Subject: [PATCH 03/44] hibernate: Call have_kernel_poweroff instead of checking pm_power_off
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1802431>

Poweroff handlers may now be installed with register_poweroff_handler.
Use the new API function have_kernel_poweroff to determine if a poweroff
handler has been installed.

Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 kernel/power/hibernate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index a9dfa79..20353c5 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -602,7 +602,7 @@ static void power_down(void)
 	case HIBERNATION_PLATFORM:
 		hibernation_platform_enter();
 	case HIBERNATION_SHUTDOWN:
-		if (pm_power_off)
+		if (have_kernel_poweroff())
 			kernel_power_off();
 		break;
 #ifdef CONFIG_SUSPEND
-- 
1.9.1


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Subject: [PATCH 01/44] kernel: Add support for poweroff handler call chain
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1802432>

Various drivers implement architecture and/or device specific means to
remove power from the system.  For the most part, those drivers set the
global variable pm_power_off to point to a function within the driver.

This mechanism has a number of drawbacks.  Typically only one scheme
to remove power is supported (at least if pm_power_off is used).
At least in theory there can be multiple means remove power, some of
which may be less desirable. For example, some mechanisms may only
power off the CPU or the CPU card, while another may power off the
entire system.  Others may really just execute a restart sequence
or drop into the ROM monitor. Using pm_power_off can also be racy
if the function pointer is set from a driver built as module, as the
driver may be in the process of being unloaded when pm_power_off is
called. If there are multiple poweroff handlers in the system, removing
a module with such a handler may inadvertently reset the pointer to
pm_power_off to NULL, leaving the system with no means to remove power.

Introduce a system poweroff handler call chain to solve the described
problems.  This call chain is expected to be executed from the
architecture specific machine_power_off() function.  Drivers providing
system poweroff functionality are expected to register with this call chain.
By using the priority field in the notifier block, callers can control
poweroff handler execution sequence and thus ensure that the poweroff
handler with the optimal capabilities to remove power for a given system
is called first.

Cc: Andrew Morton <akpm@linux-foundation.org>
cc: Heiko Stuebner <heiko@sntech.de>
Cc: Romain Perier <romain.perier@gmail.com>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Alexander Graf <agraf@suse.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 include/linux/pm.h              |  13 +++
 kernel/power/Makefile           |   1 +
 kernel/power/poweroff_handler.c | 172 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 186 insertions(+)
 create mode 100644 kernel/power/poweroff_handler.c

diff --git a/include/linux/pm.h b/include/linux/pm.h
index 72c0fe0..45271b5 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -34,6 +34,19 @@
 extern void (*pm_power_off)(void);
 extern void (*pm_power_off_prepare)(void);
 
+/*
+ * Callbacks to manage poweroff handlers
+ */
+
+struct notifier_block;
+
+extern int register_poweroff_handler(struct notifier_block *);
+extern int register_poweroff_handler_simple(void (*function)(void),
+					    int priority);
+extern int unregister_poweroff_handler(struct notifier_block *);
+extern void do_kernel_poweroff(void);
+extern bool have_kernel_poweroff(void);
+
 struct device; /* we have a circular dep with device.h */
 #ifdef CONFIG_VT_CONSOLE_SLEEP
 extern void pm_vt_switch_required(struct device *dev, bool required);
diff --git a/kernel/power/Makefile b/kernel/power/Makefile
index 29472bf..4d9f0c7 100644
--- a/kernel/power/Makefile
+++ b/kernel/power/Makefile
@@ -2,6 +2,7 @@
 ccflags-$(CONFIG_PM_DEBUG)	:= -DDEBUG
 
 obj-y				+= qos.o
+obj-y				+= poweroff_handler.o
 obj-$(CONFIG_PM)		+= main.o
 obj-$(CONFIG_VT_CONSOLE_SLEEP)	+= console.o
 obj-$(CONFIG_FREEZER)		+= process.o
diff --git a/kernel/power/poweroff_handler.c b/kernel/power/poweroff_handler.c
new file mode 100644
index 0000000..ed99e5e
--- /dev/null
+++ b/kernel/power/poweroff_handler.c
@@ -0,0 +1,172 @@
+/*
+ * linux/kernel/power/poweroff_handler.c - Poweroff handling functions
+ *
+ * Copyright (c) 2014 Guenter Roeck
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#define pr_fmt(fmt)	"poweroff: " fmt
+
+#include <linux/ctype.h>
+#include <linux/export.h>
+#include <linux/kallsyms.h>
+#include <linux/notifier.h>
+#include <linux/pm.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+/*
+ *	Notifier list for kernel code which wants to be called
+ *	to power off the system.
+ */
+static ATOMIC_NOTIFIER_HEAD(poweroff_handler_list);
+
+/**
+ *	register_poweroff_handler - Register function to be called to power off
+ *				    the system
+ *	@nb: Info about handler function to be called
+ *	@nb->priority:	Handler priority. Handlers should follow the
+ *			following guidelines for setting priorities.
+ *			0:	Poweroff handler of last resort,
+ *				with limited poweroff capabilities,
+ *				such as poweroff handlers which
+ *				do not really power off the system
+ *				but loop forever or stop the CPU.
+ *			128:	Default poweroff handler; use if no other
+ *				poweroff handler is expected to be available,
+ *				and/or if poweroff functionality is
+ *				sufficient to power off the entire system
+ *			255:	Highest priority poweroff handler, will
+ *				preempt all other poweroff handlers
+ *
+ *	Registers a function with code to be called to power off the
+ *	system.
+ *
+ *	Registered functions will be called from machine_power_off as last
+ *	step of the poweroff sequence. Registered functions are expected
+ *	to power off the system immediately. If more than one function is
+ *	registered, the poweroff handler priority selects which function
+ *	will be called first.
+ *
+ *	Poweroff handlers may be registered from architecture code or from
+ *	drivers. A typical use case would be a system where power off
+ *	functionality is provided through a multi-function chip or through
+ *	a programmable power controller. Multiple poweroff handlers may exist;
+ *	for example, one poweroff handler might power off the entire system,
+ *	while another only powers off the CPU card. In such cases, the
+ *	poweroff handler which only powers off part of the hardware is
+ *	expected to register with low priority to ensure that it only
+ *	runs if no other means to power off the system are available.
+ *
+ *	Currently always returns zero, as atomic_notifier_chain_register()
+ *	always returns zero.
+ */
+int register_poweroff_handler(struct notifier_block *nb)
+{
+	return atomic_notifier_chain_register(&poweroff_handler_list, nb);
+}
+EXPORT_SYMBOL(register_poweroff_handler);
+
+/**
+ *	unregister_poweroff_handler - Unregister previously registered
+ *				      poweroff handler
+ *	@nb: Hook to be unregistered
+ *
+ *	Unregisters a previously registered poweroff handler function.
+ *
+ *	Returns zero on success, or %-ENOENT on failure.
+ */
+int unregister_poweroff_handler(struct notifier_block *nb)
+{
+	return atomic_notifier_chain_unregister(&poweroff_handler_list, nb);
+}
+EXPORT_SYMBOL(unregister_poweroff_handler);
+
+struct _poweroff_handler_data {
+	void (*handler)(void);
+	struct notifier_block poweroff_nb;
+};
+
+static int _poweroff_handler(struct notifier_block *this,
+			     unsigned long _unused1, void *_unused2)
+{
+	struct _poweroff_handler_data *poh =
+		container_of(this, struct _poweroff_handler_data, poweroff_nb);
+
+	poh->handler();
+
+	return NOTIFY_DONE;
+}
+
+static struct _poweroff_handler_data poweroff_handler_data;
+
+/**
+ *	register_poweroff_handler_simple - Register function to be called to power off
+ *					   the system
+ *	@handler:	Function to be called to power off the system
+ *	@priority:	Handler priority. For priority guidelines see
+ *			register_poweroff_handler.
+ *
+ *	This is a simplified version of register_poweroff_handler. It does not
+ *	take a notifier as argument, but a function pointer. The function
+ *	registers a poweroff handler with specified priority. Poweroff
+ *	handlers registered with this function can not be unregistered,
+ *	and only a single poweroff handler can be installed using it.
+ *
+ *	This function must not be called from modules and is therefore
+ *	not exported.
+ *
+ *	Returns -EBUSY if a poweroff handler has already been registered
+ *	using register_poweroff_handler_simple. Otherwise returns zero,
+ *	since atomic_notifier_chain_register() currently always returns zero.
+ */
+int register_poweroff_handler_simple(void (*handler)(void), int priority)
+{
+	char symname[KSYM_NAME_LEN];
+
+	if (poweroff_handler_data.handler) {
+		lookup_symbol_name((unsigned long)poweroff_handler_data.handler,
+				   symname);
+		pr_warn("Poweroff function already registered (%s)", symname);
+		lookup_symbol_name((unsigned long)handler, symname);
+		pr_cont(", cannot register %s\n", symname);
+		return -EBUSY;
+	}
+
+	poweroff_handler_data.handler = handler;
+	poweroff_handler_data.poweroff_nb.notifier_call = _poweroff_handler;
+	poweroff_handler_data.poweroff_nb.priority = priority;
+
+	return register_poweroff_handler(&poweroff_handler_data.poweroff_nb);
+}
+
+/**
+ *	do_kernel_poweroff - Execute kernel poweroff handler call chain
+ *
+ *	Calls functions registered with register_poweroff_handler.
+ *
+ *	Expected to be called from machine_power_off as last step of
+ *	the poweroff sequence.
+ *
+ *	Powers off the system immediately if a poweroff handler function
+ *	has been registered. Otherwise does nothing.
+ */
+void do_kernel_poweroff(void)
+{
+	atomic_notifier_call_chain(&poweroff_handler_list, 0, NULL);
+}
+
+/**
+ * have_kernel_poweroff() - Check if kernel poweroff handler is available
+ *
+ * Returns true is a kernel poweroff handler is available, false otherwise.
+ */
+bool have_kernel_poweroff(void)
+{
+	return pm_power_off != NULL || poweroff_handler_list.head != NULL;
+}
+EXPORT_SYMBOL(have_kernel_poweroff);
-- 
1.9.1


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Subject: [PATCH 02/44] memory: emif: Use API function to determine poweroff capability
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Archived-At: <http://permalink.gmane.org/gmane.linux.acpi.devel/71256>

Use have_kernel_poweroff() to determine if the kernel is able
to power off the system.

Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/memory/emif.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/memory/emif.c b/drivers/memory/emif.c
index 04644e7..acd830a 100644
--- a/drivers/memory/emif.c
+++ b/drivers/memory/emif.c
@@ -1053,10 +1053,10 @@ static irqreturn_t emif_threaded_isr(int irq, void *dev_id)
 		dev_emerg(emif->dev, "SDRAM temperature exceeds operating limit.. Needs shut down!!!\n");
 
 		/* If we have Power OFF ability, use it, else try restarting */
-		if (pm_power_off) {
+		if (have_kernel_poweroff()) {
 			kernel_power_off();
 		} else {
-			WARN(1, "FIXME: NO pm_power_off!!! trying restart\n");
+			WARN(1, "FIXME: NO kernel poweroff capability!!! trying restart\n");
 			kernel_restart("SDRAM Over-temp Emergency restart");
 		}
 		return IRQ_HANDLED;
-- 
1.9.1

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Replace mach_power_off with pm_power_off to simplify the subsequent
move of pm_power_off to generic code.

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Joshua Thompson <funaho@jurai.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/m68k/emu/natfeat.c         | 3 ++-
 arch/m68k/include/asm/machdep.h | 1 -
 arch/m68k/kernel/process.c      | 5 +++--
 arch/m68k/kernel/setup_mm.c     | 1 -
 arch/m68k/kernel/setup_no.c     | 1 -
 arch/m68k/mac/config.c          | 3 ++-
 6 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/m68k/emu/natfeat.c b/arch/m68k/emu/natfeat.c
index 71b78ec..91e2ae7 100644
--- a/arch/m68k/emu/natfeat.c
+++ b/arch/m68k/emu/natfeat.c
@@ -15,6 +15,7 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/pm.h>
 #include <linux/io.h>
 #include <asm/machdep.h>
 #include <asm/natfeat.h>
@@ -90,5 +91,5 @@ void __init nf_init(void)
 	pr_info("NatFeats found (%s, %lu.%lu)\n", buf, version >> 16,
 		version & 0xffff);
 
-	mach_power_off = nf_poweroff;
+	pm_power_off = nf_poweroff;
 }
diff --git a/arch/m68k/include/asm/machdep.h b/arch/m68k/include/asm/machdep.h
index 953ca21..f9fac51 100644
--- a/arch/m68k/include/asm/machdep.h
+++ b/arch/m68k/include/asm/machdep.h
@@ -24,7 +24,6 @@ extern int (*mach_set_rtc_pll)(struct rtc_pll_info *);
 extern int (*mach_set_clock_mmss)(unsigned long);
 extern void (*mach_reset)( void );
 extern void (*mach_halt)( void );
-extern void (*mach_power_off)( void );
 extern unsigned long (*mach_hd_init) (unsigned long, unsigned long);
 extern void (*mach_hd_setup)(char *, int *);
 extern long mach_max_dma_address;
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index c55ff71..afe3d6e 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -22,6 +22,7 @@
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
 #include <linux/user.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
 #include <linux/init_task.h>
 #include <linux/mqueue.h>
@@ -77,8 +78,8 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (mach_power_off)
-		mach_power_off();
+	if (pm_power_off)
+		pm_power_off();
 	for (;;);
 }
 
diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c
index 5b8ec4d..002fea6 100644
--- a/arch/m68k/kernel/setup_mm.c
+++ b/arch/m68k/kernel/setup_mm.c
@@ -96,7 +96,6 @@ EXPORT_SYMBOL(mach_get_rtc_pll);
 EXPORT_SYMBOL(mach_set_rtc_pll);
 void (*mach_reset)( void );
 void (*mach_halt)( void );
-void (*mach_power_off)( void );
 long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */
 #ifdef CONFIG_HEARTBEAT
 void (*mach_heartbeat) (int);
diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c
index 88c27d9..1520156 100644
--- a/arch/m68k/kernel/setup_no.c
+++ b/arch/m68k/kernel/setup_no.c
@@ -55,7 +55,6 @@ int (*mach_hwclk) (int, struct rtc_time*);
 /* machine dependent reboot functions */
 void (*mach_reset)(void);
 void (*mach_halt)(void);
-void (*mach_power_off)(void);
 
 #ifdef CONFIG_M68000
 #if defined(CONFIG_M68328)
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index a471eab..677913ff 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -16,6 +16,7 @@
 #include <linux/tty.h>
 #include <linux/console.h>
 #include <linux/interrupt.h>
+#include <linux/pm.h>
 /* keyb */
 #include <linux/random.h>
 #include <linux/delay.h>
@@ -159,7 +160,7 @@ void __init config_mac(void)
 	mach_set_clock_mmss = mac_set_clock_mmss;
 	mach_reset = mac_reset;
 	mach_halt = mac_poweroff;
-	mach_power_off = mac_poweroff;
+	pm_power_off = mac_poweroff;
 	mach_max_dma_address = 0xffffffff;
 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
 	mach_beep = mac_mksound;
-- 
1.9.1

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From - Thu Nov 08 21:10:43 2018
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From: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
Newsgroups: gmane.linux.drivers.devicetree,gmane.linux.kernel,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 05/44] mfd: as3722: Drop reference to pm_power_off from devicetree bindings
Date: Mon,  6 Oct 2014 22:28:07 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.devicetree/93025>

Devicetree bindings are supposed to be operating system independent
and should thus not describe how a specific functionality is implemented
in Linux.

Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>
Cc: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 Documentation/devicetree/bindings/mfd/as3722.txt | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/as3722.txt b/Documentation/devicetree/bindings/mfd/as3722.txt
index 4f64b2a..0b2a609 100644
--- a/Documentation/devicetree/bindings/mfd/as3722.txt
+++ b/Documentation/devicetree/bindings/mfd/as3722.txt
@@ -122,8 +122,7 @@ Following are properties of regulator subnode.
 
 Power-off:
 =========
-AS3722 supports the system power off by turning off all its rail. This
-is provided through pm_power_off.
+AS3722 supports the system power off by turning off all its rails.
 The device node should have the following properties to enable this
 functionality
 ams,system-power-controller: Boolean, to enable the power off functionality
-- 
1.9.1

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From - Thu Nov 08 21:10:43 2018
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From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 09/44] mfd: palmas: Register with kernel poweroff handler
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Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a low priority value of 64 to reflect that
the original code only sets pm_power_off if it was not already set.

Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/mfd/palmas.c       | 30 +++++++++++++++++-------------
 include/linux/mfd/palmas.h |  3 +++
 2 files changed, 20 insertions(+), 13 deletions(-)

diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index 28cb048..4d78847 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -19,6 +19,7 @@
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/pm.h>
 #include <linux/regmap.h>
 #include <linux/err.h>
 #include <linux/mfd/core.h>
@@ -425,20 +426,18 @@ static void palmas_dt_to_pdata(struct i2c_client *i2c,
 			"ti,system-power-controller");
 }
 
-static struct palmas *palmas_dev;
-static void palmas_power_off(void)
+static int palmas_power_off(struct notifier_block *this, unsigned long unused1,
+			    void *unused2)
 {
+	struct palmas *palmas = container_of(this, struct palmas, poweroff_nb);
 	unsigned int addr;
 	int ret, slave;
 
-	if (!palmas_dev)
-		return;
-
 	slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
 	addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_DEV_CTRL);
 
 	ret = regmap_update_bits(
-			palmas_dev->regmap[slave],
+			palmas->regmap[slave],
 			addr,
 			PALMAS_DEV_CTRL_DEV_ON,
 			0);
@@ -446,6 +445,8 @@ static void palmas_power_off(void)
 	if (ret)
 		pr_err("%s: Unable to write to DEV_CTRL_DEV_ON: %d\n",
 				__func__, ret);
+
+	return NOTIFY_DONE;
 }
 
 static unsigned int palmas_features = PALMAS_PMIC_FEATURE_SMPS10_BOOST;
@@ -668,9 +669,15 @@ no_irq:
 		ret = of_platform_populate(node, NULL, NULL, &i2c->dev);
 		if (ret < 0) {
 			goto err_irq;
-		} else if (pdata->pm_off && !pm_power_off) {
-			palmas_dev = palmas;
-			pm_power_off = palmas_power_off;
+		} else if (pdata->pm_off) {
+			palmas->poweroff_nb.notifier_call = palmas_power_off;
+			palmas->poweroff_nb.priority = 64;
+			ret = register_poweroff_handler(&palmas->poweroff_nb);
+			if (ret) {
+				dev_err(palmas->dev,
+					"Failed to register poweroff handler");
+				ret = 0;
+			}
 		}
 	}
 
@@ -698,10 +705,7 @@ static int palmas_i2c_remove(struct i2c_client *i2c)
 			i2c_unregister_device(palmas->i2c_clients[i]);
 	}
 
-	if (palmas == palmas_dev) {
-		pm_power_off = NULL;
-		palmas_dev = NULL;
-	}
+	unregister_poweroff_handler(&palmas->poweroff_nb);
 
 	return 0;
 }
diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h
index fb0390a..4715057 100644
--- a/include/linux/mfd/palmas.h
+++ b/include/linux/mfd/palmas.h
@@ -18,6 +18,7 @@
 
 #include <linux/usb/otg.h>
 #include <linux/leds.h>
+#include <linux/notifier.h>
 #include <linux/regmap.h>
 #include <linux/regulator/driver.h>
 #include <linux/extcon.h>
@@ -68,6 +69,8 @@ struct palmas {
 	struct i2c_client *i2c_clients[PALMAS_NUM_CLIENTS];
 	struct regmap *regmap[PALMAS_NUM_CLIENTS];
 
+	struct notifier_block poweroff_nb;
+
 	/* Stored chip id */
 	int id;
 
-- 
1.9.1


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Subject: [PATCH 11/44] mfd: retu: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:13 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/2431>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a low priority value of 64 to reflect that
the original code only sets pm_power_off if it was not already set.

Cc: Lee Jones <lee.jones@linaro.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/mfd/retu-mfd.c | 33 +++++++++++++++++++--------------
 1 file changed, 19 insertions(+), 14 deletions(-)

diff --git a/drivers/mfd/retu-mfd.c b/drivers/mfd/retu-mfd.c
index 663f8a3..64b60fa 100644
--- a/drivers/mfd/retu-mfd.c
+++ b/drivers/mfd/retu-mfd.c
@@ -22,6 +22,8 @@
 #include <linux/slab.h>
 #include <linux/mutex.h>
 #include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/pm.h>
 #include <linux/regmap.h>
 #include <linux/mfd/core.h>
 #include <linux/mfd/retu.h>
@@ -43,6 +45,7 @@ struct retu_dev {
 	struct device			*dev;
 	struct mutex			mutex;
 	struct regmap_irq_chip_data	*irq_data;
+	struct notifier_block		poweroff_nb;
 };
 
 static struct resource retu_pwrbutton_res[] = {
@@ -81,9 +84,6 @@ static struct regmap_irq_chip retu_irq_chip = {
 	.ack_base	= RETU_REG_IDR,
 };
 
-/* Retu device registered for the power off. */
-static struct retu_dev *retu_pm_power_off;
-
 static struct resource tahvo_usb_res[] = {
 	{
 		.name	= "tahvo-usb",
@@ -165,12 +165,14 @@ int retu_write(struct retu_dev *rdev, u8 reg, u16 data)
 }
 EXPORT_SYMBOL_GPL(retu_write);
 
-static void retu_power_off(void)
+static int retu_power_off(struct notifier_block *this, unsigned long unused1,
+			  void *unused2)
 {
-	struct retu_dev *rdev = retu_pm_power_off;
+	struct retu_dev *rdev = container_of(this, struct retu_dev,
+					     poweroff_nb);
 	int reg;
 
-	mutex_lock(&retu_pm_power_off->mutex);
+	mutex_lock(&rdev->mutex);
 
 	/* Ignore power button state */
 	regmap_read(rdev->regmap, RETU_REG_CC1, &reg);
@@ -183,7 +185,9 @@ static void retu_power_off(void)
 	for (;;)
 		cpu_relax();
 
-	mutex_unlock(&retu_pm_power_off->mutex);
+	mutex_unlock(&rdev->mutex);
+
+	return NOTIFY_DONE;
 }
 
 static int retu_regmap_read(void *context, const void *reg, size_t reg_size,
@@ -279,9 +283,13 @@ static int retu_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
 		return ret;
 	}
 
-	if (i2c->addr == 1 && !pm_power_off) {
-		retu_pm_power_off = rdev;
-		pm_power_off	  = retu_power_off;
+	if (i2c->addr == 1) {
+		rdev->poweroff_nb.notifier_call = retu_power_off;
+		rdev->poweroff_nb.priority = 64;
+		ret = register_poweroff_handler(&rdev->poweroff_nb);
+		if (ret)
+			dev_err(rdev->dev,
+				"Failed to register poweroff handler\n");
 	}
 
 	return 0;
@@ -291,10 +299,7 @@ static int retu_remove(struct i2c_client *i2c)
 {
 	struct retu_dev *rdev = i2c_get_clientdata(i2c);
 
-	if (retu_pm_power_off == rdev) {
-		pm_power_off	  = NULL;
-		retu_pm_power_off = NULL;
-	}
+	unregister_poweroff_handler(&rdev->poweroff_nb);
 	mfd_remove_devices(rdev->dev);
 	regmap_del_irq_chip(i2c->irq, rdev->irq_data);
 
-- 
1.9.1

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From - Thu Nov 08 21:10:43 2018
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From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 07/44] qnap-poweroff: Drop reference to pm_power_off from devicetree bindings
Date: Mon,  6 Oct 2014 22:28:09 -0700
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Replace reference to pm_power_off (which is an implementation detail)
and replace it with a more generic description of the driver's functionality.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt
index af25e77..1e2260a 100644
--- a/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt
+++ b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt
@@ -3,8 +3,8 @@
 QNAP NAS devices have a microcontroller controlling the main power
 supply. This microcontroller is connected to UART1 of the Kirkwood and
 Orion5x SoCs. Sending the character 'A', at 19200 baud, tells the
-microcontroller to turn the power off. This driver adds a handler to
-pm_power_off which is called to turn the power off.
+microcontroller to turn the power off. This driver installs a handler
+to power off the system.
 
 Synology NAS devices use a similar scheme, but a different baud rate,
 9600, and a different character, '1'.
-- 
1.9.1

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From - Thu Nov 08 21:10:43 2018
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Subject: [PATCH 12/44] mfd: ab8500-sysctrl: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:14 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/2433>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a low priority value of 64 to reflect that
the original code only sets pm_power_off if it was not already set.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/mfd/ab8500-sysctrl.c | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c
index 8e0dae5..677438f 100644
--- a/drivers/mfd/ab8500-sysctrl.c
+++ b/drivers/mfd/ab8500-sysctrl.c
@@ -6,6 +6,7 @@
 
 #include <linux/err.h>
 #include <linux/module.h>
+#include <linux/notifier.h>
 #include <linux/platform_device.h>
 #include <linux/pm.h>
 #include <linux/reboot.h>
@@ -23,7 +24,8 @@
 
 static struct device *sysctrl_dev;
 
-static void ab8500_power_off(void)
+static int ab8500_power_off(struct notifier_block *this, unsigned long unused1,
+			    void *unused2)
 {
 	sigset_t old;
 	sigset_t all;
@@ -34,11 +36,6 @@ static void ab8500_power_off(void)
 	struct power_supply *psy;
 	int ret;
 
-	if (sysctrl_dev == NULL) {
-		pr_err("%s: sysctrl not initialized\n", __func__);
-		return;
-	}
-
 	/*
 	 * If we have a charger connected and we're powering off,
 	 * reboot into charge-only mode.
@@ -83,8 +80,15 @@ shutdown:
 					 AB8500_STW4500CTRL1_SWRESET4500N);
 		(void)sigprocmask(SIG_SETMASK, &old, NULL);
 	}
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block ab8500_poweroff_nb = {
+	.notifier_call = ab8500_power_off,
+	.priority = 64,
+};
+
 /*
  * Use the AB WD to reset the platform. It will perform a hard
  * reset instead of a soft reset. Write the reset reason to
@@ -185,6 +189,7 @@ static int ab8500_sysctrl_probe(struct platform_device *pdev)
 	struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
 	struct ab8500_platform_data *plat;
 	struct ab8500_sysctrl_platform_data *pdata;
+	int err;
 
 	plat = dev_get_platdata(pdev->dev.parent);
 
@@ -193,8 +198,9 @@ static int ab8500_sysctrl_probe(struct platform_device *pdev)
 
 	sysctrl_dev = &pdev->dev;
 
-	if (!pm_power_off)
-		pm_power_off = ab8500_power_off;
+	err = register_poweroff_handler(&ab8500_poweroff_nb);
+	if (err)
+		dev_err(&pdev->dev, "Failed to register poweroff handler\n");
 
 	pdata = plat->sysctrl;
 	if (pdata) {
@@ -226,11 +232,9 @@ static int ab8500_sysctrl_probe(struct platform_device *pdev)
 
 static int ab8500_sysctrl_remove(struct platform_device *pdev)
 {
+	unregister_poweroff_handler(&ab8500_poweroff_nb);
 	sysctrl_dev = NULL;
 
-	if (pm_power_off == ab8500_power_off)
-		pm_power_off = NULL;
-
 	return 0;
 }
 
-- 
1.9.1

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From - Thu Nov 08 21:10:43 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 17/44] mfd: tps65910: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:19 -0700
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Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a low priority value of 64 to reflect that
the original code only sets pm_power_off if it was not already set.

Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/mfd/tps65910.c       | 27 ++++++++++++++++++---------
 include/linux/mfd/tps65910.h |  3 +++
 2 files changed, 21 insertions(+), 9 deletions(-)

diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index f243e75..0b114d3 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -23,6 +23,8 @@
 #include <linux/irq.h>
 #include <linux/irqdomain.h>
 #include <linux/mfd/core.h>
+#include <linux/notifier.h>
+#include <linux/pm.h>
 #include <linux/regmap.h>
 #include <linux/mfd/tps65910.h>
 #include <linux/of.h>
@@ -437,19 +439,20 @@ struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
 }
 #endif
 
-static struct i2c_client *tps65910_i2c_client;
-static void tps65910_power_off(void)
+static int tps65910_power_off(struct notifier_block *this,
+			      unsigned long unused1, void *unused2)
 {
-	struct tps65910 *tps65910;
-
-	tps65910 = dev_get_drvdata(&tps65910_i2c_client->dev);
+	struct tps65910 *tps65910 = container_of(this, struct tps65910,
+						 poweroff_nb);
 
 	if (tps65910_reg_set_bits(tps65910, TPS65910_DEVCTRL,
 			DEVCTRL_PWR_OFF_MASK) < 0)
-		return;
+		return NOTIFY_DONE;
 
 	tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
 			DEVCTRL_DEV_ON_MASK);
+
+	return NOTIFY_DONE;
 }
 
 static int tps65910_i2c_probe(struct i2c_client *i2c,
@@ -500,9 +503,13 @@ static int tps65910_i2c_probe(struct i2c_client *i2c,
 	tps65910_ck32k_init(tps65910, pmic_plat_data);
 	tps65910_sleepinit(tps65910, pmic_plat_data);
 
-	if (pmic_plat_data->pm_off && !pm_power_off) {
-		tps65910_i2c_client = i2c;
-		pm_power_off = tps65910_power_off;
+	if (pmic_plat_data->pm_off) {
+		tps65910->poweroff_nb.notifier_call = tps65910_power_off;
+		tps65910->poweroff_nb.priority = 64;
+		ret = register_poweroff_handler(&tps65910->poweroff_nb);
+		if (ret)
+			dev_err(&i2c->dev,
+				"failed to register poweroff handler\n");
 	}
 
 	ret = mfd_add_devices(tps65910->dev, -1,
@@ -522,6 +529,8 @@ static int tps65910_i2c_remove(struct i2c_client *i2c)
 {
 	struct tps65910 *tps65910 = i2c_get_clientdata(i2c);
 
+	unregister_poweroff_handler(&tps65910->poweroff_nb);
+
 	tps65910_irq_exit(tps65910);
 	mfd_remove_devices(tps65910->dev);
 
diff --git a/include/linux/mfd/tps65910.h b/include/linux/mfd/tps65910.h
index 6483a6f..65cae2c 100644
--- a/include/linux/mfd/tps65910.h
+++ b/include/linux/mfd/tps65910.h
@@ -905,6 +905,9 @@ struct tps65910 {
 	/* IRQ Handling */
 	int chip_irq;
 	struct regmap_irq_chip_data *irq_data;
+
+	/* Poweroff handling */
+	struct notifier_block poweroff_nb;
 };
 
 struct tps65910_platform_data {
-- 
1.9.1


From - Thu Nov 08 21:10:43 2018
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Subject: [PATCH 16/44] mfd: tps6586x: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:18 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/2435>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a low priority value of 64 to reflect that
the original code only sets pm_power_off if it was not already set.

Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/mfd/tps6586x.c | 31 +++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)

diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index 8e1dbc4..bc14509 100644
--- a/drivers/mfd/tps6586x.c
+++ b/drivers/mfd/tps6586x.c
@@ -21,10 +21,12 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/notifier.h>
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/i2c.h>
 #include <linux/platform_device.h>
+#include <linux/pm.h>
 #include <linux/regmap.h>
 #include <linux/of.h>
 
@@ -133,6 +135,8 @@ struct tps6586x {
 	u32			irq_en;
 	u8			mask_reg[5];
 	struct irq_domain	*irq_domain;
+
+	struct notifier_block	poweroff_nb;
 };
 
 static inline struct tps6586x *dev_to_tps6586x(struct device *dev)
@@ -472,13 +476,18 @@ static const struct regmap_config tps6586x_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static struct device *tps6586x_dev;
-static void tps6586x_power_off(void)
+static int tps6586x_power_off(struct notifier_block *this,
+			      unsigned long unused1, void *unused2)
 {
-	if (tps6586x_clr_bits(tps6586x_dev, TPS6586X_SUPPLYENE, EXITSLREQ_BIT))
-		return;
+	struct tps6586x *tps6586x = container_of(this, struct tps6586x,
+						 poweroff_nb);
+
+	if (tps6586x_clr_bits(tps6586x->dev, TPS6586X_SUPPLYENE, EXITSLREQ_BIT))
+		return NOTIFY_DONE;
 
-	tps6586x_set_bits(tps6586x_dev, TPS6586X_SUPPLYENE, SLEEP_MODE_BIT);
+	tps6586x_set_bits(tps6586x->dev, TPS6586X_SUPPLYENE, SLEEP_MODE_BIT);
+
+	return NOTIFY_DONE;
 }
 
 static void tps6586x_print_version(struct i2c_client *client, int version)
@@ -575,9 +584,13 @@ static int tps6586x_i2c_probe(struct i2c_client *client,
 		goto err_add_devs;
 	}
 
-	if (pdata->pm_off && !pm_power_off) {
-		tps6586x_dev = &client->dev;
-		pm_power_off = tps6586x_power_off;
+	if (pdata->pm_off) {
+		tps6586x->poweroff_nb.notifier_call = tps6586x_power_off;
+		tps6586x->poweroff_nb.priority = 64;
+		ret = register_poweroff_handler(&tps6586x->poweroff_nb);
+		if (ret)
+			dev_err(&client->dev,
+				"failed to register poweroff handler\n");
 	}
 
 	return 0;
@@ -594,6 +607,8 @@ static int tps6586x_i2c_remove(struct i2c_client *client)
 {
 	struct tps6586x *tps6586x = i2c_get_clientdata(client);
 
+	unregister_poweroff_handler(&tps6586x->poweroff_nb);
+
 	tps6586x_remove_subdevs(tps6586x);
 	mfd_remove_devices(tps6586x->dev);
 	if (client->irq)
-- 
1.9.1

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From - Thu Nov 08 21:10:43 2018
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Subject: [PATCH 10/44] mfd: axp20x: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:12 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.efi/4719>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a low priority value of 64 to reflect that
the original code only sets pm_power_off if it was not already set.

Cc: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Samuel Ortiz <sameo-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 drivers/mfd/axp20x.c       | 30 +++++++++++++++++-------------
 include/linux/mfd/axp20x.h |  1 +
 2 files changed, 18 insertions(+), 13 deletions(-)

diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index dee6539..238db4c 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -17,7 +17,8 @@
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/pm_runtime.h>
+#include <linux/notifier.h>
+#include <linux/pm.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
 #include <linux/regulator/consumer.h>
@@ -161,11 +162,16 @@ static struct mfd_cell axp20x_cells[] = {
 	},
 };
 
-static struct axp20x_dev *axp20x_pm_power_off;
-static void axp20x_power_off(void)
+static int axp20x_power_off(struct notifier_block *this, unsigned long unused1,
+			    void *unused2)
+
 {
-	regmap_write(axp20x_pm_power_off->regmap, AXP20X_OFF_CTRL,
-		     AXP20X_OFF);
+	struct axp20x_dev *axp20x = container_of(this, struct axp20x_dev,
+						 poweroff_nb);
+
+	regmap_write(axp20x->regmap, AXP20X_OFF_CTRL, AXP20X_OFF);
+
+	return NOTIFY_DONE;
 }
 
 static int axp20x_i2c_probe(struct i2c_client *i2c,
@@ -215,10 +221,11 @@ static int axp20x_i2c_probe(struct i2c_client *i2c,
 		return ret;
 	}
 
-	if (!pm_power_off) {
-		axp20x_pm_power_off = axp20x;
-		pm_power_off = axp20x_power_off;
-	}
+	axp20x->poweroff_nb.notifier_call = axp20x_power_off;
+	axp20x->poweroff_nb.priority = 64;
+	ret = register_poweroff_handler(&axp20x->poweroff_nb);
+	if (ret)
+		dev_err(&i2c->dev, "failed to register poweroff handler\n");
 
 	dev_info(&i2c->dev, "AXP20X driver loaded\n");
 
@@ -229,10 +236,7 @@ static int axp20x_i2c_remove(struct i2c_client *i2c)
 {
 	struct axp20x_dev *axp20x = i2c_get_clientdata(i2c);
 
-	if (axp20x == axp20x_pm_power_off) {
-		axp20x_pm_power_off = NULL;
-		pm_power_off = NULL;
-	}
+	unregister_poweroff_handler(&axp20x->poweroff_nb);
 
 	mfd_remove_devices(axp20x->dev);
 	regmap_del_irq_chip(axp20x->i2c_client->irq, axp20x->regmap_irqc);
diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
index d0e31a2..8f23b39 100644
--- a/include/linux/mfd/axp20x.h
+++ b/include/linux/mfd/axp20x.h
@@ -175,6 +175,7 @@ struct axp20x_dev {
 	struct regmap			*regmap;
 	struct regmap_irq_chip_data	*regmap_irqc;
 	long				variant;
+	struct notifier_block		poweroff_nb;
 };
 
 #endif /* __LINUX_MFD_AXP20X_H */
-- 
1.9.1


From - Thu Nov 08 21:10:44 2018
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Subject: [PATCH 18/44] mfd: twl4030-power: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:20 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/2437>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a low priority value of 64 to reflect that
the original code only sets pm_power_off if it was not already set.

Make twl4030_power_off static as it is only called from the twl4030-power
driver.

Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/mfd/twl4030-power.c | 25 +++++++++++++++++++++----
 include/linux/i2c/twl.h     |  1 -
 2 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
index 4d3ff37..bd6b830 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -25,9 +25,10 @@
  */
 
 #include <linux/module.h>
-#include <linux/pm.h>
+#include <linux/notifier.h>
 #include <linux/i2c/twl.h>
 #include <linux/platform_device.h>
+#include <linux/pm.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
 
@@ -611,7 +612,8 @@ twl4030_power_configure_resources(const struct twl4030_power_data *pdata)
  * After a successful execution, TWL shuts down the power to the SoC
  * and all peripherals connected to it.
  */
-void twl4030_power_off(void)
+static int twl4030_power_off(struct notifier_block *this, unsigned long unused1,
+			     void *unused2)
 {
 	int err;
 
@@ -619,8 +621,15 @@ void twl4030_power_off(void)
 			       TWL4030_PM_MASTER_P1_SW_EVENTS);
 	if (err)
 		pr_err("TWL4030 Unable to power off\n");
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block twl4030_poweroff_nb = {
+	.notifier_call = twl4030_power_off,
+	.priority = 64,
+};
+
 static bool twl4030_power_use_poweroff(const struct twl4030_power_data *pdata,
 					struct device_node *node)
 {
@@ -836,7 +845,7 @@ static int twl4030_power_probe(struct platform_device *pdev)
 	}
 
 	/* Board has to be wired properly to use this feature */
-	if (twl4030_power_use_poweroff(pdata, node) && !pm_power_off) {
+	if (twl4030_power_use_poweroff(pdata, node)) {
 		/* Default for SEQ_OFFSYNC is set, lets ensure this */
 		err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &val,
 				      TWL4030_PM_MASTER_CFG_P123_TRANSITION);
@@ -853,7 +862,13 @@ static int twl4030_power_probe(struct platform_device *pdev)
 			}
 		}
 
-		pm_power_off = twl4030_power_off;
+		err = register_poweroff_handler(&twl4030_poweroff_nb);
+		if (err) {
+			dev_err(&pdev->dev,
+				"Failed to register poweroff handler\n");
+			/* Not a fatal error */
+			err = 0;
+		}
 	}
 
 relock:
@@ -869,6 +884,8 @@ relock:
 
 static int twl4030_power_remove(struct platform_device *pdev)
 {
+	unregister_poweroff_handler(&twl4030_poweroff_nb);
+
 	return 0;
 }
 
diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h
index 8cfb50f..f8544f1 100644
--- a/include/linux/i2c/twl.h
+++ b/include/linux/i2c/twl.h
@@ -680,7 +680,6 @@ struct twl4030_power_data {
 };
 
 extern int twl4030_remove_script(u8 flags);
-extern void twl4030_power_off(void);
 
 struct twl4030_codec_data {
 	unsigned int digimic_delay; /* in ms */
-- 
1.9.1

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From - Thu Nov 08 21:10:44 2018
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From: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
Newsgroups: gmane.linux.kernel.efi,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 13/44] mfd: max8907: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:15 -0700
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.efi/4721>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a low priority value of 64 to reflect that
the original code only sets pm_power_off if it was not already set.

Note that this patch fixes a problem on driver unload as side effect:
The old code did not restore or clean up pm_power_off on remove,
meaning the pointer was left in an undefined state.

Cc: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Samuel Ortiz <sameo-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 drivers/mfd/max8907.c       | 24 ++++++++++++++++++------
 include/linux/mfd/max8907.h |  2 ++
 2 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/drivers/mfd/max8907.c b/drivers/mfd/max8907.c
index 232749c..b8cddc1 100644
--- a/drivers/mfd/max8907.c
+++ b/drivers/mfd/max8907.c
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/pm.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
 
@@ -177,11 +178,16 @@ static const struct regmap_irq_chip max8907_rtc_irq_chip = {
 	.num_irqs = ARRAY_SIZE(max8907_rtc_irqs),
 };
 
-static struct max8907 *max8907_pm_off;
-static void max8907_power_off(void)
+static int max8907_power_off(struct notifier_block *this, unsigned long unused1,
+			     void *unused2)
 {
-	regmap_update_bits(max8907_pm_off->regmap_gen, MAX8907_REG_RESET_CNFG,
+	struct max8907 *max8907 = container_of(this, struct max8907,
+					       poweroff_nb);
+
+	regmap_update_bits(max8907->regmap_gen, MAX8907_REG_RESET_CNFG,
 			MAX8907_MASK_POWER_OFF, MAX8907_MASK_POWER_OFF);
+
+	return NOTIFY_DONE;
 }
 
 static int max8907_i2c_probe(struct i2c_client *i2c,
@@ -267,9 +273,13 @@ static int max8907_i2c_probe(struct i2c_client *i2c,
 		goto err_add_devices;
 	}
 
-	if (pm_off && !pm_power_off) {
-		max8907_pm_off = max8907;
-		pm_power_off = max8907_power_off;
+	if (pm_off) {
+		max8907->poweroff_nb.notifier_call = max8907_power_off;
+		max8907->poweroff_nb.priority = 64;
+		ret = register_poweroff_handler(&max8907->poweroff_nb);
+		if (ret)
+			dev_err(&i2c->dev,
+				"Failed to register poweroff handler");
 	}
 
 	return 0;
@@ -293,6 +303,8 @@ static int max8907_i2c_remove(struct i2c_client *i2c)
 {
 	struct max8907 *max8907 = i2c_get_clientdata(i2c);
 
+	unregister_poweroff_handler(&max8907->poweroff_nb);
+
 	mfd_remove_devices(max8907->dev);
 
 	regmap_del_irq_chip(max8907->i2c_gen->irq, max8907->irqc_rtc);
diff --git a/include/linux/mfd/max8907.h b/include/linux/mfd/max8907.h
index b06f7a6..016428e 100644
--- a/include/linux/mfd/max8907.h
+++ b/include/linux/mfd/max8907.h
@@ -13,6 +13,7 @@
 #define __LINUX_MFD_MAX8907_H
 
 #include <linux/mutex.h>
+#include <linux/notifier.h>
 #include <linux/pm.h>
 
 #define MAX8907_GEN_I2C_ADDR		(0x78 >> 1)
@@ -247,6 +248,7 @@ struct max8907 {
 	struct regmap_irq_chip_data	*irqc_chg;
 	struct regmap_irq_chip_data	*irqc_on_off;
 	struct regmap_irq_chip_data	*irqc_rtc;
+	struct notifier_block		poweroff_nb;
 };
 
 #endif
-- 
1.9.1


From - Thu Nov 08 21:10:44 2018
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From: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
Newsgroups: gmane.linux.kernel.efi,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 15/44] mfd: dm355evm_msp: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:17 -0700
Lines: 63
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.efi/4722>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a low priority value of 64 to reflect that
the original code only sets pm_power_off if it was not already set.

Cc: Samuel Ortiz <sameo-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Cc: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 drivers/mfd/dm355evm_msp.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/mfd/dm355evm_msp.c b/drivers/mfd/dm355evm_msp.c
index 4c826f7..52a82f3 100644
--- a/drivers/mfd/dm355evm_msp.c
+++ b/drivers/mfd/dm355evm_msp.c
@@ -14,6 +14,8 @@
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/pm.h>
 #include <linux/err.h>
 #include <linux/gpio.h>
 #include <linux/leds.h>
@@ -352,14 +354,22 @@ static void dm355evm_command(unsigned command)
 				command, status);
 }
 
-static void dm355evm_power_off(void)
+static int dm355evm_power_off(struct notifier_block *this,
+			      unsigned long unused1, void *unused2)
 {
 	dm355evm_command(MSP_COMMAND_POWEROFF);
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block dm355evm_msp_poweroff_nb = {
+	.notifier_call = dm355evm_power_off,
+	.priority = 64,
+};
+
 static int dm355evm_msp_remove(struct i2c_client *client)
 {
-	pm_power_off = NULL;
+	unregister_poweroff_handler(&dm355evm_msp_poweroff_nb);
 	msp430 = NULL;
 	return 0;
 }
@@ -398,7 +408,9 @@ dm355evm_msp_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		goto fail;
 
 	/* PM hookup */
-	pm_power_off = dm355evm_power_off;
+	status = register_poweroff_handler(&dm355evm_msp_poweroff_nb);
+	if (status)
+		dev_err(&client->dev, "Failed to register poweroff handler\n");
 
 	return 0;
 
-- 
1.9.1


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Subject: [PATCH 30/44] acpi: Register poweroff handler with kernel poweroff handler
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Xref: news.gmane.org gmane.linux.kernel:1802446 gmane.linux.drivers.devicetree:93036 gmane.linux.kernel.virtualization.lguest:1455 gmane.linux.acpi.devel:71269 gmane.linux.ports.alpha:2440 gmane.linux.kernel.efi:4723 gmane.linux.ports.hexagon:787 gmane.linux.ports.ppc64.devel:105866 gmane.linux.ports.tegra:19469 gmane.linux.kernel.openipmi:2446 gmane.linux.uml.devel:14659 gmane.linux.ports.arm.kernel:362341 gmane.linux.ports.ia64:24476 gmane.linux.kernel.metag:307 gmane.linux.ports.mips.general:44157 gmane.linux.ports.parisc:6082 gmane.linux.power-management.general:50611 gmane.linux.ports.sh.devel:39780
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1802446>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with high priority value of 192 to reflect that
the driver explicitly overrides existing poweroff handlers.

Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/acpi/sleep.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 54da4a3..25aad22 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -15,6 +15,8 @@
 #include <linux/dmi.h>
 #include <linux/device.h>
 #include <linux/suspend.h>
+#include <linux/notifier.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
 #include <linux/acpi.h>
 #include <linux/module.h>
@@ -811,14 +813,22 @@ static void acpi_power_off_prepare(void)
 	acpi_disable_all_gpes();
 }
 
-static void acpi_power_off(void)
+static int acpi_power_off(struct notifier_block *this,
+			  unsigned long unused1, void *unused2)
 {
 	/* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
 	printk(KERN_DEBUG "%s called\n", __func__);
 	local_irq_disable();
 	acpi_enter_sleep_state(ACPI_STATE_S5);
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block acpi_poweroff_nb = {
+	.notifier_call = acpi_power_off,
+	.priority = 192,
+};
+
 int __init acpi_sleep_init(void)
 {
 	char supported[ACPI_S_STATE_COUNT * 3 + 1];
@@ -835,7 +845,8 @@ int __init acpi_sleep_init(void)
 	if (acpi_sleep_state_supported(ACPI_STATE_S5)) {
 		sleep_states[ACPI_STATE_S5] = 1;
 		pm_power_off_prepare = acpi_power_off_prepare;
-		pm_power_off = acpi_power_off;
+		if (register_poweroff_handler(&acpi_poweroff_nb))
+			pr_err("acpi: Failed to register poweroff handler\n");
 	}
 
 	supported[0] = 0;
-- 
1.9.1


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Subject: [PATCH 06/44] gpio-poweroff: Drop reference to pm_power_off from devicetree bindings
Date: Mon,  6 Oct 2014 22:28:08 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/24477>

pm_power_off is an implementation detail. Replace it with a more generic
description of the driver's functionality.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 Documentation/devicetree/bindings/gpio/gpio-poweroff.txt | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt b/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt
index d4eab92..c95a1a6 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt
@@ -2,12 +2,12 @@ Driver a GPIO line that can be used to turn the power off.
 
 The driver supports both level triggered and edge triggered power off.
 At driver load time, the driver will request the given gpio line and
-install a pm_power_off handler. If the optional properties 'input' is
-not found, the GPIO line will be driven in the inactive
+install a handler to power off the system. If the optional properties
+'input' is not found, the GPIO line will be driven in the inactive
 state. Otherwise its configured as an input.
 
-When the pm_power_off is called, the gpio is configured as an output,
-and drive active, so triggering a level triggered power off
+When the the poweroff handler is called, the gpio is configured as an
+output, and drive active, so triggering a level triggered power off
 condition. This will also cause an inactive->active edge condition, so
 triggering positive edge triggered power off. After a delay of 100ms,
 the GPIO is set to inactive, thus causing an active->inactive edge,
@@ -24,7 +24,7 @@ Required properties:
 
 Optional properties:
 - input : Initially configure the GPIO line as an input. Only reconfigure
-  it to an output when the pm_power_off function is called. If this optional
+  it to an output when the poweroff handler is called. If this optional
   property is not specified, the GPIO is initialized as an output in its
   inactive state.
 
-- 
1.9.1

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From - Thu Nov 08 21:10:44 2018
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Subject: [PATCH 24/44] power/reset: msm-powroff: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:26 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.tegra/19471>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Select proprity 0 since the code does not really poweroff
the system.

Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 drivers/power/reset/msm-poweroff.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/power/reset/msm-poweroff.c b/drivers/power/reset/msm-poweroff.c
index 774f9a3..189bcd3 100644
--- a/drivers/power/reset/msm-poweroff.c
+++ b/drivers/power/reset/msm-poweroff.c
@@ -19,6 +19,7 @@
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/module.h>
+#include <linux/notifier.h>
 #include <linux/reboot.h>
 
 #include <asm/system_misc.h>
@@ -31,12 +32,19 @@ static void do_msm_restart(enum reboot_mode reboot_mode, const char *cmd)
 	mdelay(10000);
 }
 
-static void do_msm_poweroff(void)
+static int do_msm_poweroff(struct notifier_block *this,
+			   unsigned long unused1, void *unused2)
 {
 	/* TODO: Add poweroff capability */
 	do_msm_restart(REBOOT_HARD, NULL);
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block msm_powroff_nb = {
+	.notifier_call = do_msm_poweroff,
+};
+
 static int msm_restart_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -47,7 +55,8 @@ static int msm_restart_probe(struct platform_device *pdev)
 	if (IS_ERR(msm_ps_hold))
 		return PTR_ERR(msm_ps_hold);
 
-	pm_power_off = do_msm_poweroff;
+	if (register_poweroff_handler(&msm_powroff_nb))
+		dev_err(&pdev->dev, "Failed to register poweroff handler\n");
 	arm_pm_restart = do_msm_restart;
 	return 0;
 }
-- 
1.9.1


From - Thu Nov 08 21:10:44 2018
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From: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
Newsgroups: gmane.linux.ports.tegra,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 26/44] x86: iris: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:28 -0700
Lines: 82
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.tegra/19472>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with high priority value of 192 to reflect that
the original code overwrites existing poweroff handlers.

Cc: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
Cc: Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: H. Peter Anvin <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 arch/x86/platform/iris/iris.c | 25 +++++++++++++++++++------
 1 file changed, 19 insertions(+), 6 deletions(-)

diff --git a/arch/x86/platform/iris/iris.c b/arch/x86/platform/iris/iris.c
index 4d171e8..662c4e8 100644
--- a/arch/x86/platform/iris/iris.c
+++ b/arch/x86/platform/iris/iris.c
@@ -23,6 +23,7 @@
 
 #include <linux/moduleparam.h>
 #include <linux/module.h>
+#include <linux/notifier.h>
 #include <linux/platform_device.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
@@ -47,15 +48,21 @@ static bool force;
 module_param(force, bool, 0);
 MODULE_PARM_DESC(force, "Set to one to force poweroff handler installation.");
 
-static void (*old_pm_power_off)(void);
-
-static void iris_power_off(void)
+static int iris_power_off(struct notifier_block *this, unsigned long unused1,
+			  void *unused2)
 {
 	outb(IRIS_GIO_PULSE, IRIS_GIO_OUTPUT);
 	msleep(850);
 	outb(IRIS_GIO_REST, IRIS_GIO_OUTPUT);
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block iris_poweroff_nb = {
+	.notifier_call = iris_power_off,
+	.priority = 192,
+};
+
 /*
  * Before installing the power_off handler, try to make sure the OS is
  * running on an Iris.  Since Iris does not support DMI, this is done
@@ -65,20 +72,26 @@ static void iris_power_off(void)
 static int iris_probe(struct platform_device *pdev)
 {
 	unsigned char status = inb(IRIS_GIO_INPUT);
+	int ret;
+
 	if (status == IRIS_GIO_NODEV) {
 		printk(KERN_ERR "This machine does not seem to be an Iris. "
 			"Power off handler not installed.\n");
 		return -ENODEV;
 	}
-	old_pm_power_off = pm_power_off;
-	pm_power_off = &iris_power_off;
+
+	ret = register_poweroff_handler(&iris_poweroff_nb);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to register poweroff handler\n");
+		return ret;
+	}
 	printk(KERN_INFO "Iris power_off handler installed.\n");
 	return 0;
 }
 
 static int iris_remove(struct platform_device *pdev)
 {
-	pm_power_off = old_pm_power_off;
+	unregister_poweroff_handler(&iris_poweroff_nb);
 	printk(KERN_INFO "Iris power_off handler uninstalled.\n");
 	return 0;
 }
-- 
1.9.1


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Newsgroups: gmane.linux.drivers.devicetree,gmane.linux.kernel,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
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Register with kernel poweroff handler instead of setting pm_power_off
directly.

Cc: Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>
Cc: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 arch/arm64/kernel/psci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
index 5539547..c1f3d09 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -286,7 +286,7 @@ static int __init psci_0_2_init(struct device_node *np)
 
 	arm_pm_restart = psci_sys_reset;
 
-	pm_power_off = psci_sys_poweroff;
+	register_poweroff_handler_simple(psci_sys_poweroff, 128);
 
 out_put_node:
 	of_node_put(np);
-- 
1.9.1

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From - Thu Nov 08 21:10:44 2018
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Subject: [PATCH 34/44] ia64: Register with kernel poweroff handler
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Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with lower priority of 64 to reflect that the call
is expected to be replaced at some point.

Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/ia64/sn/kernel/setup.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index 36182c8..6c83425 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -488,12 +488,12 @@ void __init sn_setup(char **cmdline_p)
 	sn_timer_init();
 
 	/*
-	 * set pm_power_off to a SAL call to allow
+	 * set poweroff handler to a SAL call to allow
 	 * sn machines to power off. The SAL call can be replaced
 	 * by an ACPI interface call when ACPI is fully implemented
 	 * for sn.
 	 */
-	pm_power_off = ia64_sn_power_down;
+	register_poweroff_handler_simple(ia64_sn_power_down, 64);
 	current->thread.flags |= IA64_THREAD_MIGRATION;
 }
 
-- 
1.9.1

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From - Thu Nov 08 21:10:44 2018
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Newsgroups: gmane.linux.drivers.devicetree,gmane.linux.kernel,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 31/44] arm: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:33 -0700
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	Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>,
	Russell King
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Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.devicetree/93042>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Always use register_poweroff_handler_simple as there is no
indication that more than one poweroff handler is registered.

If the poweroff handler only resets the system or puts the CPU in sleep mode,
select a priority of 0 to indicate that the poweroff handler is one of last
resort. If the poweroff handler powers off the system, select a priority
of 128.

Cc: Russell King <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>
Cc: Andrew Victor <linux-PelNFVqkFnVyf+4FbqDuWQ@public.gmane.org>
Cc: Nicolas Ferre <nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj-sclMFOaUSTBWk0Htik3J/w@public.gmane.org>
Cc: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
Cc: Christian Daudt <bcm-xK7y4jjYLqYh9ZMKESR00Q@public.gmane.org>
Cc: Matt Porter <mporter-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Anton Vorontsov <anton-9xeibp6oKSgdnm+yROfE0A@public.gmane.org>
Cc: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Shawn Guo <shawn.guo-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
Cc: Sascha Hauer <kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Cc: Imre Kaloz <kaloz-p3rKhJxN3npAfugRpC6u6w@public.gmane.org>
Cc: Krzysztof Halasa <khc-9GfyWEdoJtJmR6Xm/wNWPw@public.gmane.org>
Cc: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
Cc: Jason Cooper <jason-NLaQJdtUoK4Be96aLqz0jA@public.gmane.org>
Cc: Andrew Lunn <andrew-g2DYL2Zd6BY@public.gmane.org>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Eric Miao <eric.y.miao-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Haojian Zhuang <haojian.zhuang-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Robert Jarzmik <robert.jarzmik-GANU6spQydw@public.gmane.org>
Cc: Marek Vasut <marek.vasut-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>
Cc: Kukjin Kim <kgene.kim-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Cc: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Tony Prisk <linux-ci5G2KO2hbZ+pU9mqzGVBQ@public.gmane.org>
Cc: Stefano Stabellini <stefano.stabellini-mvvWK6WmYclDPfheJLI6IQ@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 arch/arm/kernel/psci.c                         | 2 +-
 arch/arm/mach-at91/board-gsia18s.c             | 2 +-
 arch/arm/mach-at91/setup.c                     | 4 ++--
 arch/arm/mach-bcm/board_bcm2835.c              | 2 +-
 arch/arm/mach-cns3xxx/cns3420vb.c              | 2 +-
 arch/arm/mach-cns3xxx/core.c                   | 2 +-
 arch/arm/mach-highbank/highbank.c              | 2 +-
 arch/arm/mach-imx/mach-mx31moboard.c           | 2 +-
 arch/arm/mach-iop32x/em7210.c                  | 2 +-
 arch/arm/mach-iop32x/glantank.c                | 2 +-
 arch/arm/mach-iop32x/iq31244.c                 | 2 +-
 arch/arm/mach-iop32x/n2100.c                   | 2 +-
 arch/arm/mach-ixp4xx/dsmg600-setup.c           | 2 +-
 arch/arm/mach-ixp4xx/nas100d-setup.c           | 2 +-
 arch/arm/mach-ixp4xx/nslu2-setup.c             | 2 +-
 arch/arm/mach-omap2/board-omap3touchbook.c     | 2 +-
 arch/arm/mach-orion5x/board-mss2.c             | 2 +-
 arch/arm/mach-orion5x/dns323-setup.c           | 6 +++---
 arch/arm/mach-orion5x/kurobox_pro-setup.c      | 2 +-
 arch/arm/mach-orion5x/ls-chl-setup.c           | 2 +-
 arch/arm/mach-orion5x/ls_hgl-setup.c           | 2 +-
 arch/arm/mach-orion5x/lsmini-setup.c           | 2 +-
 arch/arm/mach-orion5x/mv2120-setup.c           | 2 +-
 arch/arm/mach-orion5x/net2big-setup.c          | 2 +-
 arch/arm/mach-orion5x/terastation_pro2-setup.c | 2 +-
 arch/arm/mach-orion5x/ts209-setup.c            | 2 +-
 arch/arm/mach-orion5x/ts409-setup.c            | 2 +-
 arch/arm/mach-pxa/corgi.c                      | 2 +-
 arch/arm/mach-pxa/mioa701.c                    | 2 +-
 arch/arm/mach-pxa/poodle.c                     | 2 +-
 arch/arm/mach-pxa/spitz.c                      | 2 +-
 arch/arm/mach-pxa/tosa.c                       | 2 +-
 arch/arm/mach-pxa/viper.c                      | 2 +-
 arch/arm/mach-pxa/z2.c                         | 6 +++---
 arch/arm/mach-pxa/zeus.c                       | 6 +++---
 arch/arm/mach-s3c24xx/mach-gta02.c             | 2 +-
 arch/arm/mach-s3c24xx/mach-jive.c              | 2 +-
 arch/arm/mach-s3c24xx/mach-vr1000.c            | 2 +-
 arch/arm/mach-s3c64xx/mach-smartq.c            | 2 +-
 arch/arm/mach-sa1100/generic.c                 | 2 +-
 arch/arm/mach-sa1100/simpad.c                  | 2 +-
 arch/arm/mach-u300/regulator.c                 | 2 +-
 arch/arm/mach-vt8500/vt8500.c                  | 2 +-
 arch/arm/xen/enlighten.c                       | 2 +-
 44 files changed, 51 insertions(+), 51 deletions(-)

diff --git a/arch/arm/kernel/psci.c b/arch/arm/kernel/psci.c
index f73891b..dd58d86 100644
--- a/arch/arm/kernel/psci.c
+++ b/arch/arm/kernel/psci.c
@@ -264,7 +264,7 @@ static int psci_0_2_init(struct device_node *np)
 
 	arm_pm_restart = psci_sys_reset;
 
-	pm_power_off = psci_sys_poweroff;
+	register_poweroff_handler_simple(psci_sys_poweroff, 128);
 
 out_put_node:
 	of_node_put(np);
diff --git a/arch/arm/mach-at91/board-gsia18s.c b/arch/arm/mach-at91/board-gsia18s.c
index b729dd1..6722e66 100644
--- a/arch/arm/mach-at91/board-gsia18s.c
+++ b/arch/arm/mach-at91/board-gsia18s.c
@@ -521,7 +521,7 @@ static void gsia18s_power_off(void)
 
 static int __init gsia18s_power_off_init(void)
 {
-	pm_power_off = gsia18s_power_off;
+	register_poweroff_handler_simple(gsia18s_power_off, 128);
 	return 0;
 }
 
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index f7a07a5..9989e88 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -329,7 +329,7 @@ void __init at91_ioremap_shdwc(u32 base_addr)
 	at91_shdwc_base = ioremap(base_addr, 16);
 	if (!at91_shdwc_base)
 		panic("Impossible to ioremap at91_shdwc_base\n");
-	pm_power_off = at91sam9_poweroff;
+	register_poweroff_handler_simple(at91sam9_poweroff, 128);
 }
 
 void __iomem *at91_rstc_base;
@@ -482,7 +482,7 @@ static void at91_dt_shdwc(void)
 	at91_shdwc_write(AT91_SHDW_MR, wakeup_mode | mode);
 
 end:
-	pm_power_off = at91sam9_poweroff;
+	register_poweroff_handler_simple(at91sam9_poweroff, 128);
 
 	of_node_put(np);
 }
diff --git a/arch/arm/mach-bcm/board_bcm2835.c b/arch/arm/mach-bcm/board_bcm2835.c
index 70f2f39..7d5784f 100644
--- a/arch/arm/mach-bcm/board_bcm2835.c
+++ b/arch/arm/mach-bcm/board_bcm2835.c
@@ -111,7 +111,7 @@ static void __init bcm2835_init(void)
 
 	bcm2835_setup_restart();
 	if (wdt_regs)
-		pm_power_off = bcm2835_power_off;
+		register_poweroff_handler_simple(bcm2835_power_off, 0);
 
 	bcm2835_init_clocks();
 
diff --git a/arch/arm/mach-cns3xxx/cns3420vb.c b/arch/arm/mach-cns3xxx/cns3420vb.c
index d863d87..136b7c6 100644
--- a/arch/arm/mach-cns3xxx/cns3420vb.c
+++ b/arch/arm/mach-cns3xxx/cns3420vb.c
@@ -224,7 +224,7 @@ static void __init cns3420_init(void)
 	cns3xxx_ahci_init();
 	cns3xxx_sdhci_init();
 
-	pm_power_off = cns3xxx_power_off;
+	register_poweroff_handler_simple(cns3xxx_power_off, 128);
 }
 
 static struct map_desc cns3420_io_desc[] __initdata = {
diff --git a/arch/arm/mach-cns3xxx/core.c b/arch/arm/mach-cns3xxx/core.c
index f85449a..79e6ead 100644
--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
@@ -386,7 +386,7 @@ static void __init cns3xxx_init(void)
 		cns3xxx_pwr_soft_rst(CNS3XXX_PWR_SOFTWARE_RST(SDIO));
 	}
 
-	pm_power_off = cns3xxx_power_off;
+	register_poweroff_handler_simple(cns3xxx_power_off, 128);
 
 	of_platform_populate(NULL, of_default_bus_match_table,
                         cns3xxx_auxdata, NULL);
diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
index 8c35ae4..25d0134 100644
--- a/arch/arm/mach-highbank/highbank.c
+++ b/arch/arm/mach-highbank/highbank.c
@@ -155,7 +155,7 @@ static void __init highbank_init(void)
 	sregs_base = of_iomap(np, 0);
 	WARN_ON(!sregs_base);
 
-	pm_power_off = highbank_power_off;
+	register_poweroff_handler_simple(highbank_power_off, 0);
 	highbank_pm_init();
 
 	bus_register_notifier(&platform_bus_type, &highbank_platform_nb);
diff --git a/arch/arm/mach-imx/mach-mx31moboard.c b/arch/arm/mach-imx/mach-mx31moboard.c
index bb6f8a5..9b3616f 100644
--- a/arch/arm/mach-imx/mach-mx31moboard.c
+++ b/arch/arm/mach-imx/mach-mx31moboard.c
@@ -559,7 +559,7 @@ static void __init mx31moboard_init(void)
 
 	imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
 
-	pm_power_off = mx31moboard_poweroff;
+	register_poweroff_handler_simple(mx31moboard_poweroff, 128);
 
 	switch (mx31moboard_baseboard) {
 	case MX31NOBOARD:
diff --git a/arch/arm/mach-iop32x/em7210.c b/arch/arm/mach-iop32x/em7210.c
index 77e1ff0..beeeb0c2 100644
--- a/arch/arm/mach-iop32x/em7210.c
+++ b/arch/arm/mach-iop32x/em7210.c
@@ -201,7 +201,7 @@ static int __init em7210_request_gpios(void)
 		return 0;
 	}
 
-	pm_power_off = em7210_power_off;
+	register_poweroff_handler_simple(em7210_power_off, 128);
 
 	return 0;
 }
diff --git a/arch/arm/mach-iop32x/glantank.c b/arch/arm/mach-iop32x/glantank.c
index 547b234..050a8e6 100644
--- a/arch/arm/mach-iop32x/glantank.c
+++ b/arch/arm/mach-iop32x/glantank.c
@@ -199,7 +199,7 @@ static void __init glantank_init_machine(void)
 	i2c_register_board_info(0, glantank_i2c_devices,
 		ARRAY_SIZE(glantank_i2c_devices));
 
-	pm_power_off = glantank_power_off;
+	register_poweroff_handler_simple(glantank_power_off, 128);
 }
 
 MACHINE_START(GLANTANK, "GLAN Tank")
diff --git a/arch/arm/mach-iop32x/iq31244.c b/arch/arm/mach-iop32x/iq31244.c
index 0e1392b..4e9b972 100644
--- a/arch/arm/mach-iop32x/iq31244.c
+++ b/arch/arm/mach-iop32x/iq31244.c
@@ -293,7 +293,7 @@ static void __init iq31244_init_machine(void)
 	platform_device_register(&iop3xx_dma_1_channel);
 
 	if (is_ep80219())
-		pm_power_off = ep80219_power_off;
+		register_poweroff_handler_simple(ep80219_power_off, 128);
 
 	if (!is_80219())
 		platform_device_register(&iop3xx_aau_channel);
diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c
index c1cd80e..171d496 100644
--- a/arch/arm/mach-iop32x/n2100.c
+++ b/arch/arm/mach-iop32x/n2100.c
@@ -356,7 +356,7 @@ static void __init n2100_init_machine(void)
 	i2c_register_board_info(0, n2100_i2c_devices,
 		ARRAY_SIZE(n2100_i2c_devices));
 
-	pm_power_off = n2100_power_off;
+	register_poweroff_handler_simple(n2100_power_off, 128);
 }
 
 MACHINE_START(N2100, "Thecus N2100")
diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c
index 43ee06d..6fb5072 100644
--- a/arch/arm/mach-ixp4xx/dsmg600-setup.c
+++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c
@@ -281,7 +281,7 @@ static void __init dsmg600_init(void)
 
 	platform_add_devices(dsmg600_devices, ARRAY_SIZE(dsmg600_devices));
 
-	pm_power_off = dsmg600_power_off;
+	register_poweroff_handler_simple(dsmg600_power_off, 128);
 }
 
 MACHINE_START(DSMG600, "D-Link DSM-G600 RevA")
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index 4e0f762..bd9a8d6 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -292,7 +292,7 @@ static void __init nas100d_init(void)
 
 	platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
 
-	pm_power_off = nas100d_power_off;
+	register_poweroff_handler_simple(nas100d_power_off, 128);
 
 	if (request_irq(gpio_to_irq(NAS100D_RB_GPIO), &nas100d_reset_handler,
 		IRQF_TRIGGER_LOW, "NAS100D reset button", NULL) < 0) {
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
index 88c025f..c4c5475 100644
--- a/arch/arm/mach-ixp4xx/nslu2-setup.c
+++ b/arch/arm/mach-ixp4xx/nslu2-setup.c
@@ -262,7 +262,7 @@ static void __init nslu2_init(void)
 
 	platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
 
-	pm_power_off = nslu2_power_off;
+	register_poweroff_handler_simple(nslu2_power_off, 128);
 
 	if (request_irq(gpio_to_irq(NSLU2_RB_GPIO), &nslu2_reset_handler,
 		IRQF_TRIGGER_LOW, "NSLU2 reset button", NULL) < 0) {
diff --git a/arch/arm/mach-omap2/board-omap3touchbook.c b/arch/arm/mach-omap2/board-omap3touchbook.c
index 70b904c..0c0a0e2 100644
--- a/arch/arm/mach-omap2/board-omap3touchbook.c
+++ b/arch/arm/mach-omap2/board-omap3touchbook.c
@@ -344,7 +344,7 @@ static void __init omap3_touchbook_init(void)
 {
 	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 
-	pm_power_off = omap3_touchbook_poweroff;
+	register_poweroff_handler_simple(omap3_touchbook_poweroff, 128);
 
 	if (system_rev >= 0x20 && system_rev <= 0x34301000) {
 		omap_mux_init_gpio(23, OMAP_PIN_INPUT);
diff --git a/arch/arm/mach-orion5x/board-mss2.c b/arch/arm/mach-orion5x/board-mss2.c
index 66f9c3b..3840d66 100644
--- a/arch/arm/mach-orion5x/board-mss2.c
+++ b/arch/arm/mach-orion5x/board-mss2.c
@@ -86,5 +86,5 @@ static void mss2_power_off(void)
 void __init mss2_init(void)
 {
 	/* register mss2 specific power-off method */
-	pm_power_off = mss2_power_off;
+	register_poweroff_handler_simple(mss2_power_off, 0);
 }
diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c
index 56edeab..353ca3d 100644
--- a/arch/arm/mach-orion5x/dns323-setup.c
+++ b/arch/arm/mach-orion5x/dns323-setup.c
@@ -669,7 +669,7 @@ static void __init dns323_init(void)
 		if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
 		    gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
 			pr_err("DNS-323: failed to setup power-off GPIO\n");
-		pm_power_off = dns323a_power_off;
+		register_poweroff_handler_simple(dns323a_power_off, 128);
 		break;
 	case DNS323_REV_B1:
 		/* 5182 built-in SATA init */
@@ -686,7 +686,7 @@ static void __init dns323_init(void)
 		if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
 		    gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
 			pr_err("DNS-323: failed to setup power-off GPIO\n");
-		pm_power_off = dns323b_power_off;
+		register_poweroff_handler_simple(dns323b_power_off, 128);
 		break;
 	case DNS323_REV_C1:
 		/* 5182 built-in SATA init */
@@ -696,7 +696,7 @@ static void __init dns323_init(void)
 		if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 ||
 		    gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0)
 			pr_err("DNS-323: failed to setup power-off GPIO\n");
-		pm_power_off = dns323c_power_off;
+		register_poweroff_handler_simple(dns323c_power_off, 128);
 
 		/* Now, -this- should theorically be done by the sata_mv driver
 		 * once I figure out what's going on there. Maybe the behaviour
diff --git a/arch/arm/mach-orion5x/kurobox_pro-setup.c b/arch/arm/mach-orion5x/kurobox_pro-setup.c
index fe6a48a..c4101f1 100644
--- a/arch/arm/mach-orion5x/kurobox_pro-setup.c
+++ b/arch/arm/mach-orion5x/kurobox_pro-setup.c
@@ -376,7 +376,7 @@ static void __init kurobox_pro_init(void)
 	i2c_register_board_info(0, &kurobox_pro_i2c_rtc, 1);
 
 	/* register Kurobox Pro specific power-off method */
-	pm_power_off = kurobox_pro_power_off;
+	register_poweroff_handler_simple(kurobox_pro_power_off, 128);
 }
 
 #ifdef CONFIG_MACH_KUROBOX_PRO
diff --git a/arch/arm/mach-orion5x/ls-chl-setup.c b/arch/arm/mach-orion5x/ls-chl-setup.c
index 028ea03..005bb04 100644
--- a/arch/arm/mach-orion5x/ls-chl-setup.c
+++ b/arch/arm/mach-orion5x/ls-chl-setup.c
@@ -312,7 +312,7 @@ static void __init lschl_init(void)
 	gpio_set_value(LSCHL_GPIO_USB_POWER, 1);
 
 	/* register power-off method */
-	pm_power_off = lschl_power_off;
+	register_poweroff_handler_simple(lschl_power_off, 0);
 
 	pr_info("%s: finished\n", __func__);
 }
diff --git a/arch/arm/mach-orion5x/ls_hgl-setup.c b/arch/arm/mach-orion5x/ls_hgl-setup.c
index 32b7129..37c29a0 100644
--- a/arch/arm/mach-orion5x/ls_hgl-setup.c
+++ b/arch/arm/mach-orion5x/ls_hgl-setup.c
@@ -259,7 +259,7 @@ static void __init ls_hgl_init(void)
 	gpio_set_value(LS_HGL_GPIO_USB_POWER, 1);
 
 	/* register power-off method */
-	pm_power_off = ls_hgl_power_off;
+	register_poweroff_handler_simple(ls_hgl_power_off, 0);
 
 	pr_info("%s: finished\n", __func__);
 }
diff --git a/arch/arm/mach-orion5x/lsmini-setup.c b/arch/arm/mach-orion5x/lsmini-setup.c
index a6493e7..ffec72f 100644
--- a/arch/arm/mach-orion5x/lsmini-setup.c
+++ b/arch/arm/mach-orion5x/lsmini-setup.c
@@ -260,7 +260,7 @@ static void __init lsmini_init(void)
 	gpio_set_value(LSMINI_GPIO_USB_POWER, 1);
 
 	/* register power-off method */
-	pm_power_off = lsmini_power_off;
+	register_poweroff_handler_simple(lsmini_power_off, 0);
 
 	pr_info("%s: finished\n", __func__);
 }
diff --git a/arch/arm/mach-orion5x/mv2120-setup.c b/arch/arm/mach-orion5x/mv2120-setup.c
index e032f01..dadc2b9 100644
--- a/arch/arm/mach-orion5x/mv2120-setup.c
+++ b/arch/arm/mach-orion5x/mv2120-setup.c
@@ -225,7 +225,7 @@ static void __init mv2120_init(void)
 	if (gpio_request(MV2120_GPIO_POWER_OFF, "POWEROFF") != 0 ||
 	    gpio_direction_output(MV2120_GPIO_POWER_OFF, 1) != 0)
 		pr_err("mv2120: failed to setup power-off GPIO\n");
-	pm_power_off = mv2120_power_off;
+	register_poweroff_handler_simple(mv2120_power_off, 128);
 }
 
 /* Warning: HP uses a wrong mach-type (=526) in their bootloader */
diff --git a/arch/arm/mach-orion5x/net2big-setup.c b/arch/arm/mach-orion5x/net2big-setup.c
index ba73dc7..3a73dce 100644
--- a/arch/arm/mach-orion5x/net2big-setup.c
+++ b/arch/arm/mach-orion5x/net2big-setup.c
@@ -413,7 +413,7 @@ static void __init net2big_init(void)
 
 	if (gpio_request(NET2BIG_GPIO_POWER_OFF, "power-off") == 0 &&
 	    gpio_direction_output(NET2BIG_GPIO_POWER_OFF, 0) == 0)
-		pm_power_off = net2big_power_off;
+		register_poweroff_handler_simple(net2big_power_off, 128);
 	else
 		pr_err("net2big: failed to configure power-off GPIO\n");
 
diff --git a/arch/arm/mach-orion5x/terastation_pro2-setup.c b/arch/arm/mach-orion5x/terastation_pro2-setup.c
index 6208d12..2a234cb 100644
--- a/arch/arm/mach-orion5x/terastation_pro2-setup.c
+++ b/arch/arm/mach-orion5x/terastation_pro2-setup.c
@@ -353,7 +353,7 @@ static void __init tsp2_init(void)
 	i2c_register_board_info(0, &tsp2_i2c_rtc, 1);
 
 	/* register Terastation Pro II specific power-off method */
-	pm_power_off = tsp2_power_off;
+	register_poweroff_handler_simple(tsp2_power_off, 128);
 }
 
 MACHINE_START(TERASTATION_PRO2, "Buffalo Terastation Pro II/Live")
diff --git a/arch/arm/mach-orion5x/ts209-setup.c b/arch/arm/mach-orion5x/ts209-setup.c
index 9136797..50bdfbc 100644
--- a/arch/arm/mach-orion5x/ts209-setup.c
+++ b/arch/arm/mach-orion5x/ts209-setup.c
@@ -318,7 +318,7 @@ static void __init qnap_ts209_init(void)
 	i2c_register_board_info(0, &qnap_ts209_i2c_rtc, 1);
 
 	/* register tsx09 specific power-off method */
-	pm_power_off = qnap_tsx09_power_off;
+	register_poweroff_handler_simple(qnap_tsx09_power_off, 128);
 }
 
 MACHINE_START(TS209, "QNAP TS-109/TS-209")
diff --git a/arch/arm/mach-orion5x/ts409-setup.c b/arch/arm/mach-orion5x/ts409-setup.c
index 5c079d31..06a7cc0 100644
--- a/arch/arm/mach-orion5x/ts409-setup.c
+++ b/arch/arm/mach-orion5x/ts409-setup.c
@@ -307,7 +307,7 @@ static void __init qnap_ts409_init(void)
 	platform_device_register(&ts409_leds);
 
 	/* register tsx09 specific power-off method */
-	pm_power_off = qnap_tsx09_power_off;
+	register_poweroff_handler_simple(qnap_tsx09_power_off, 128);
 }
 
 MACHINE_START(TS409, "QNAP TS-409")
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 06022b2..a93bac0 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -718,7 +718,7 @@ static void corgi_restart(enum reboot_mode mode, const char *cmd)
 
 static void __init corgi_init(void)
 {
-	pm_power_off = corgi_poweroff;
+	register_poweroff_handler_simple(corgi_poweroff, 0);
 
 	/* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
 	PCFR |= PCFR_OPDE;
diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c
index 29997bd..c4345a4 100644
--- a/arch/arm/mach-pxa/mioa701.c
+++ b/arch/arm/mach-pxa/mioa701.c
@@ -750,7 +750,7 @@ static void __init mioa701_machine_init(void)
 	pxa_set_keypad_info(&mioa701_keypad_info);
 	pxa_set_udc_info(&mioa701_udc_info);
 	pxa_set_ac97_info(&mioa701_ac97_info);
-	pm_power_off = mioa701_poweroff;
+	register_poweroff_handler_simple(mioa701_poweroff, 0);
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 	gsm_init();
 
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index 1319916..c9536ed 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -432,7 +432,7 @@ static void __init poodle_init(void)
 {
 	int ret = 0;
 
-	pm_power_off = poodle_poweroff;
+	register_poweroff_handler_simple(poodle_poweroff, 0);
 
 	PCFR |= PCFR_OPDE;
 
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 840c3a4..09f0de8 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -944,7 +944,7 @@ static void spitz_restart(enum reboot_mode mode, const char *cmd)
 static void __init spitz_init(void)
 {
 	init_gpio_reset(SPITZ_GPIO_ON_RESET, 1, 0);
-	pm_power_off = spitz_poweroff;
+	register_poweroff_handler_simple(spitz_poweroff, 0);
 
 	PMCR = 0x00;
 
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index c158a6e..3a4af1d 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -940,7 +940,7 @@ static void __init tosa_init(void)
 
 	init_gpio_reset(TOSA_GPIO_ON_RESET, 0, 0);
 
-	pm_power_off = tosa_poweroff;
+	register_poweroff_handler_simple(tosa_poweroff, 0);
 
 	PCFR |= PCFR_OPDE;
 
diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
index de3b080..679c8ea 100644
--- a/arch/arm/mach-pxa/viper.c
+++ b/arch/arm/mach-pxa/viper.c
@@ -919,7 +919,7 @@ static void __init viper_init(void)
 {
 	u8 version;
 
-	pm_power_off = viper_power_off;
+	register_poweroff_handler_simple(viper_power_off, 128);
 
 	pxa2xx_mfp_config(ARRAY_AND_SIZE(viper_pin_config));
 
diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c
index e1a121b..e0195ac 100644
--- a/arch/arm/mach-pxa/z2.c
+++ b/arch/arm/mach-pxa/z2.c
@@ -693,8 +693,6 @@ static void z2_power_off(void)
 	pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
 	pxa27x_cpu_pm_enter(PM_SUSPEND_MEM);
 }
-#else
-#define z2_power_off   NULL
 #endif
 
 /******************************************************************************
@@ -719,7 +717,9 @@ static void __init z2_init(void)
 	z2_keys_init();
 	z2_pmic_init();
 
-	pm_power_off = z2_power_off;
+#ifdef CONFIG_PM
+	register_poweroff_handler_simple(z2_power_off, 0);
+#endif
 }
 
 MACHINE_START(ZIPIT2, "Zipit Z2")
diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c
index 205f9bf..6118fd5 100644
--- a/arch/arm/mach-pxa/zeus.c
+++ b/arch/arm/mach-pxa/zeus.c
@@ -690,8 +690,6 @@ static void zeus_power_off(void)
 	local_irq_disable();
 	cpu_suspend(PWRMODE_DEEPSLEEP, pxa27x_finish_suspend);
 }
-#else
-#define zeus_power_off   NULL
 #endif
 
 #ifdef CONFIG_APM_EMULATION
@@ -847,7 +845,9 @@ static void __init zeus_init(void)
 	__raw_writel(msc0, MSC0);
 	__raw_writel(msc1, MSC1);
 
-	pm_power_off = zeus_power_off;
+#ifdef CONFIG_PM
+	register_poweroff_handler_simple(zeus_power_off, 0);
+#endif
 	zeus_setup_apm();
 
 	pxa2xx_mfp_config(ARRAY_AND_SIZE(zeus_pin_config));
diff --git a/arch/arm/mach-s3c24xx/mach-gta02.c b/arch/arm/mach-s3c24xx/mach-gta02.c
index fc3a08d..ca78150 100644
--- a/arch/arm/mach-s3c24xx/mach-gta02.c
+++ b/arch/arm/mach-s3c24xx/mach-gta02.c
@@ -579,7 +579,7 @@ static void __init gta02_machine_init(void)
 	i2c_register_board_info(0, gta02_i2c_devs, ARRAY_SIZE(gta02_i2c_devs));
 
 	platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices));
-	pm_power_off = gta02_poweroff;
+	register_poweroff_handler_simple(gta02_poweroff, 128);
 
 	regulator_has_full_constraints();
 }
diff --git a/arch/arm/mach-s3c24xx/mach-jive.c b/arch/arm/mach-s3c24xx/mach-jive.c
index 7804d3c..5a828a3 100644
--- a/arch/arm/mach-s3c24xx/mach-jive.c
+++ b/arch/arm/mach-s3c24xx/mach-jive.c
@@ -657,7 +657,7 @@ static void __init jive_machine_init(void)
 	s3c_i2c0_set_platdata(&jive_i2c_cfg);
 	i2c_register_board_info(0, jive_i2c_devs, ARRAY_SIZE(jive_i2c_devs));
 
-	pm_power_off = jive_power_off;
+	register_poweroff_handler_simple(jive_power_off, 128);
 
 	platform_add_devices(jive_devices, ARRAY_SIZE(jive_devices));
 }
diff --git a/arch/arm/mach-s3c24xx/mach-vr1000.c b/arch/arm/mach-s3c24xx/mach-vr1000.c
index f88c584..40d7655 100644
--- a/arch/arm/mach-s3c24xx/mach-vr1000.c
+++ b/arch/arm/mach-s3c24xx/mach-vr1000.c
@@ -306,7 +306,7 @@ static void vr1000_power_off(void)
 
 static void __init vr1000_map_io(void)
 {
-	pm_power_off = vr1000_power_off;
+	register_poweroff_handler_simple(vr1000_power_off, 128);
 
 	s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 	s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
index b3d1353..61f0893 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -291,7 +291,7 @@ static int __init smartq_power_off_init(void)
 	/* leave power on */
 	gpio_direction_output(S3C64XX_GPK(15), 0);
 
-	pm_power_off = smartq_power_off;
+	register_poweroff_handler_simple(smartq_power_off, 128);
 
 	return ret;
 }
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index d4ea142..6b839cf 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -311,7 +311,7 @@ static struct platform_device *sa11x0_devices[] __initdata = {
 
 static int __init sa1100_init(void)
 {
-	pm_power_off = sa1100_power_off;
+	register_poweroff_handler_simple(sa1100_power_off, 0);
 	return platform_add_devices(sa11x0_devices, ARRAY_SIZE(sa11x0_devices));
 }
 
diff --git a/arch/arm/mach-sa1100/simpad.c b/arch/arm/mach-sa1100/simpad.c
index 41e476e..a65ca58 100644
--- a/arch/arm/mach-sa1100/simpad.c
+++ b/arch/arm/mach-sa1100/simpad.c
@@ -373,7 +373,7 @@ static int __init simpad_init(void)
 	if (ret)
 		printk(KERN_WARNING "simpad: Unable to register cs3 GPIO device");
 
-	pm_power_off = simpad_power_off;
+	register_poweroff_handler_simple(simpad_power_off, 0);
 
 	sa11x0_ppc_configure_mcp();
 	sa11x0_register_mtd(&simpad_flash_data, simpad_flash_resources,
diff --git a/arch/arm/mach-u300/regulator.c b/arch/arm/mach-u300/regulator.c
index 0493a84..c98eb6e 100644
--- a/arch/arm/mach-u300/regulator.c
+++ b/arch/arm/mach-u300/regulator.c
@@ -98,7 +98,7 @@ static int __init __u300_init_boardpower(struct platform_device *pdev)
 			   U300_SYSCON_PMCR_DCON_ENABLE, 0);
 
 	/* Register globally exported PM poweroff hook */
-	pm_power_off = u300_pm_poweroff;
+	register_poweroff_handler_simple(u300_pm_poweroff, 128);
 
 	return 0;
 }
diff --git a/arch/arm/mach-vt8500/vt8500.c b/arch/arm/mach-vt8500/vt8500.c
index 2da7be3..515946b 100644
--- a/arch/arm/mach-vt8500/vt8500.c
+++ b/arch/arm/mach-vt8500/vt8500.c
@@ -155,7 +155,7 @@ static void __init vt8500_init(void)
 			pr_err("%s:ioremap(power_off) failed\n", __func__);
 	}
 	if (pmc_base)
-		pm_power_off = &vt8500_power_off;
+		register_poweroff_handler_simple(vt8500_power_off, 0);
 	else
 		pr_err("%s: PMC Hibernation register could not be remapped, not enabling power off!\n", __func__);
 
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index 0e15f01..0da639b 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -336,7 +336,7 @@ static int __init xen_pm_init(void)
 	if (!xen_domain())
 		return -ENODEV;
 
-	pm_power_off = xen_power_off;
+	register_poweroff_handler_simple(xen_power_off, 128);
 	arm_pm_restart = xen_restart;
 
 	return 0;
-- 
1.9.1

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Subject: [PATCH 38/44] x86: lguest: Register with kernel poweroff handler
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1802453>

Register with kernel poweroff handler instead of setting pm_power_off
directly.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/x86/lguest/boot.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index aae9413..083a999 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -1441,7 +1441,7 @@ __init void lguest_init(void)
 	 * the Guest routine to power off, and the reboot hook to our restart
 	 * routine.
 	 */
-	pm_power_off = lguest_power_off;
+	register_poweroff_handler_simple(lguest_power_off, 128);
 	machine_ops.restart = lguest_restart;
 
 	/*
-- 
1.9.1


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Subject: [PATCH 43/44] hwmon: (ab8500) Call kernel_power_off instead of pm_power_off
Date: Mon,  6 Oct 2014 22:28:45 -0700
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Xref: news.gmane.org gmane.linux.ports.alpha:2448 gmane.linux.kernel:1802454 gmane.linux.drivers.devicetree:93044 gmane.linux.kernel.virtualization.lguest:1463 gmane.linux.acpi.devel:71277 gmane.linux.kernel.efi:4731 gmane.linux.ports.hexagon:795 gmane.linux.ports.ppc64.devel:105874 gmane.linux.ports.tegra:19477 gmane.linux.kernel.openipmi:2454 gmane.linux.uml.devel:14667 gmane.linux.ports.arm.kernel:362349 gmane.linux.ports.ia64:24484 gmane.linux.kernel.metag:315 gmane.linux.ports.mips.general:44165 gmane.linux.ports.parisc:6090 gmane.linux.power-management.general:50619 gmane.linux.ports.sh.devel:39788
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/2448>

Drivers should not call pm_power_off directly; it is not guaranteed
to be non-NULL. Call kernel_power_off instead.

Cc: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/ab8500.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/ab8500.c b/drivers/hwmon/ab8500.c
index d844dc8..8b6a4f4 100644
--- a/drivers/hwmon/ab8500.c
+++ b/drivers/hwmon/ab8500.c
@@ -6,7 +6,7 @@
  *
  * When the AB8500 thermal warning temperature is reached (threshold cannot
  * be changed by SW), an interrupt is set, and if no further action is taken
- * within a certain time frame, pm_power off will be called.
+ * within a certain time frame, kernel_power_off will be called.
  *
  * When AB8500 thermal shutdown temperature is reached a hardware shutdown of
  * the AB8500 will occur.
@@ -21,6 +21,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/power/ab8500.h>
+#include <linux/reboot.h>
 #include <linux/slab.h>
 #include <linux/sysfs.h>
 #include "abx500.h"
@@ -106,7 +107,7 @@ static void ab8500_thermal_power_off(struct work_struct *work)
 
 	dev_warn(&abx500_data->pdev->dev, "Power off due to critical temp\n");
 
-	pm_power_off();
+	kernel_power_off();
 }
 
 static ssize_t ab8500_show_name(struct device *dev,
-- 
1.9.1

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From - Thu Nov 08 21:10:45 2018
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Subject: [PATCH 39/44] x86: ce4100: Register with kernel poweroff handler
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Register with kernel poweroff handler instead of setting pm_power_off
directly.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/x86/platform/ce4100/ce4100.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/platform/ce4100/ce4100.c b/arch/x86/platform/ce4100/ce4100.c
index 701fd58..4a7f3d6 100644
--- a/arch/x86/platform/ce4100/ce4100.c
+++ b/arch/x86/platform/ce4100/ce4100.c
@@ -164,5 +164,5 @@ void __init x86_ce4100_early_setup(void)
 	 */
 	reboot_type = BOOT_KBD;
 
-	pm_power_off = ce4100_power_off;
+	register_poweroff_handler_simple(ce4100_power_off, 128);
 }
-- 
1.9.1

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From - Thu Nov 08 21:10:45 2018
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Subject: [PATCH 40/44] x86: intel-mid: Drop registration of dummy poweroff handlers
Date: Mon,  6 Oct 2014 22:28:42 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/2450>

A dummy poweroff handler does not serve any purpose. Drop it.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/x86/platform/intel-mid/intel-mid.c | 5 -----
 arch/x86/platform/intel-mid/mfld.c      | 5 -----
 2 files changed, 10 deletions(-)

diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 1bbedc4..4b70666 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -67,10 +67,6 @@ static void *(*get_intel_mid_ops[])(void) = INTEL_MID_OPS_INIT;
 enum intel_mid_cpu_type __intel_mid_cpu_chip;
 EXPORT_SYMBOL_GPL(__intel_mid_cpu_chip);
 
-static void intel_mid_power_off(void)
-{
-};
-
 static void intel_mid_reboot(void)
 {
 	intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
@@ -183,7 +179,6 @@ void __init x86_intel_mid_early_setup(void)
 
 	legacy_pic = &null_legacy_pic;
 
-	pm_power_off = intel_mid_power_off;
 	machine_ops.emergency_restart  = intel_mid_reboot;
 
 	/* Avoid searching for BIOS MP tables */
diff --git a/arch/x86/platform/intel-mid/mfld.c b/arch/x86/platform/intel-mid/mfld.c
index 23381d2..cf6842f 100644
--- a/arch/x86/platform/intel-mid/mfld.c
+++ b/arch/x86/platform/intel-mid/mfld.c
@@ -23,10 +23,6 @@ static struct intel_mid_ops penwell_ops = {
 	.arch_setup = penwell_arch_setup,
 };
 
-static void mfld_power_off(void)
-{
-}
-
 static unsigned long __init mfld_calibrate_tsc(void)
 {
 	unsigned long fast_calibrate;
@@ -61,7 +57,6 @@ static unsigned long __init mfld_calibrate_tsc(void)
 static void __init penwell_arch_setup(void)
 {
 	x86_platform.calibrate_tsc = mfld_calibrate_tsc;
-	pm_power_off = mfld_power_off;
 }
 
 void *get_penwell_ops(void)
-- 
1.9.1

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Subject: [PATCH 44/44] kernel: Remove pm_power_off
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No users of pm_power_off are left, so it is safe to remove the function.

Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 include/linux/pm.h              |  1 -
 kernel/power/poweroff_handler.c | 10 +---------
 2 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/include/linux/pm.h b/include/linux/pm.h
index 45271b5..fce7645 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -31,7 +31,6 @@
 /*
  * Callbacks for platform drivers to implement.
  */
-extern void (*pm_power_off)(void);
 extern void (*pm_power_off_prepare)(void);
 
 /*
diff --git a/kernel/power/poweroff_handler.c b/kernel/power/poweroff_handler.c
index 96f59ef..01a3a39 100644
--- a/kernel/power/poweroff_handler.c
+++ b/kernel/power/poweroff_handler.c
@@ -20,12 +20,6 @@
 #include <linux/types.h>
 
 /*
- * If set, calling this function will power off the system immediately.
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
-/*
  *	Notifier list for kernel code which wants to be called
  *	to power off the system.
  */
@@ -163,8 +157,6 @@ int register_poweroff_handler_simple(void (*handler)(void), int priority)
  */
 void do_kernel_poweroff(void)
 {
-	if (pm_power_off)
-		pm_power_off();
 	atomic_notifier_call_chain(&poweroff_handler_list, 0, NULL);
 }
 
@@ -175,6 +167,6 @@ void do_kernel_poweroff(void)
  */
 bool have_kernel_poweroff(void)
 {
-	return pm_power_off != NULL || poweroff_handler_list.head != NULL;
+	return poweroff_handler_list.head != NULL;
 }
 EXPORT_SYMBOL(have_kernel_poweroff);
-- 
1.9.1

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From - Thu Nov 08 21:10:45 2018
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Subject: [PATCH 23/44] power/reset: qnap-poweroff: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:25 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/6210>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with default priority value of 128 to reflect that
the original code generates an error if another poweroff handler has
already been registered when the driver is loaded.

Cc: Sebastian Reichel <sre@kernel.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/power/reset/qnap-poweroff.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/power/reset/qnap-poweroff.c b/drivers/power/reset/qnap-poweroff.c
index a75db7f..c474980 100644
--- a/drivers/power/reset/qnap-poweroff.c
+++ b/drivers/power/reset/qnap-poweroff.c
@@ -16,7 +16,9 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/notifier.h>
 #include <linux/platform_device.h>
+#include <linux/pm.h>
 #include <linux/serial_reg.h>
 #include <linux/kallsyms.h>
 #include <linux/of.h>
@@ -55,7 +57,8 @@ static void __iomem *base;
 static unsigned long tclk;
 static const struct power_off_cfg *cfg;
 
-static void qnap_power_off(void)
+static int qnap_power_off(struct notifier_block *this, unsigned long unused1,
+			  void *unused2)
 {
 	const unsigned divisor = ((tclk + (8 * cfg->baud)) / (16 * cfg->baud));
 
@@ -72,14 +75,20 @@ static void qnap_power_off(void)
 
 	/* send the power-off command to PIC */
 	writel(cfg->cmd, UART1_REG(TX));
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block qnap_poweroff_nb = {
+	.notifier_call = qnap_power_off,
+	.priority = 128,
+};
+
 static int qnap_power_off_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct resource *res;
 	struct clk *clk;
-	char symname[KSYM_NAME_LEN];
 
 	const struct of_device_id *match =
 		of_match_node(qnap_power_off_of_match_table, np);
@@ -106,22 +115,13 @@ static int qnap_power_off_probe(struct platform_device *pdev)
 
 	tclk = clk_get_rate(clk);
 
-	/* Check that nothing else has already setup a handler */
-	if (pm_power_off) {
-		lookup_symbol_name((ulong)pm_power_off, symname);
-		dev_err(&pdev->dev,
-			"pm_power_off already claimed %p %s",
-			pm_power_off, symname);
-		return -EBUSY;
-	}
-	pm_power_off = qnap_power_off;
-
-	return 0;
+	return register_poweroff_handler(&qnap_poweroff_nb);
 }
 
 static int qnap_power_off_remove(struct platform_device *pdev)
 {
-	pm_power_off = NULL;
+	unregister_poweroff_handler(&qnap_poweroff_nb);
+
 	return 0;
 }
 
-- 
1.9.1


From - Thu Nov 08 21:10:45 2018
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Newsgroups: gmane.linux.ports.tegra,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 42/44] efi: Register poweroff handler with kernel poweroff handler
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Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with low priority value of 64 since the efi code
states that this is a poweroff handler of last resort.

Cc: Matt Fleming <matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 drivers/firmware/efi/reboot.c | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/drivers/firmware/efi/reboot.c b/drivers/firmware/efi/reboot.c
index 9c59d1c..c082439 100644
--- a/drivers/firmware/efi/reboot.c
+++ b/drivers/firmware/efi/reboot.c
@@ -3,6 +3,8 @@
  * Copyright (c) 2014 Red Hat, Inc., Mark Salter <msalter-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
  */
 #include <linux/efi.h>
+#include <linux/notifier.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
 
 int efi_reboot_quirk_mode = -1;
@@ -38,19 +40,32 @@ bool __weak efi_poweroff_required(void)
 	return false;
 }
 
-static void efi_power_off(void)
+static int efi_power_off(struct notifier_block *this,
+			 unsigned long unused1, void *unused2)
 {
 	efi.reset_system(EFI_RESET_SHUTDOWN, EFI_SUCCESS, 0, NULL);
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block efi_poweroff_nb = {
+	.notifier_call = efi_power_off,
+	.priority = 64,
+};
+
 static int __init efi_shutdown_init(void)
 {
+	int ret = 0;
+
 	if (!efi_enabled(EFI_RUNTIME_SERVICES))
 		return -ENODEV;
 
-	if (efi_poweroff_required())
-		pm_power_off = efi_power_off;
+	if (efi_poweroff_required()) {
+		ret = register_poweroff_handler(&efi_poweroff_nb);
+		if (ret)
+			pr_err("efi: Failed to register poweroff handler\n");
+	}
 
-	return 0;
+	return ret;
 }
 late_initcall(efi_shutdown_init);
-- 
1.9.1


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Subject: [PATCH 27/44] x86: apm: Register with kernel poweroff handler
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Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with high priority value of 192 to reflect that
the original code overwrites existing poweroff handlers.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/x86/kernel/apm_32.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 5848744..84566a6 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -219,6 +219,7 @@
 #include <linux/init.h>
 #include <linux/time.h>
 #include <linux/sched.h>
+#include <linux/notifier.h>
 #include <linux/pm.h>
 #include <linux/capability.h>
 #include <linux/device.h>
@@ -981,7 +982,8 @@ recalc:
  *	on their first cpu.
  */
 
-static void apm_power_off(void)
+static int apm_power_off(struct notifier_block *this, unsigned long unused1,
+			 void *unused2)
 {
 	/* Some bioses don't like being called from CPU != 0 */
 	if (apm_info.realmode_power_off) {
@@ -990,8 +992,14 @@ static void apm_power_off(void)
 	} else {
 		(void)set_system_power_state(APM_STATE_OFF);
 	}
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block apm_poweroff_nb = {
+	.notifier_call = apm_power_off,
+	.priority = 192,
+};
+
 #ifdef CONFIG_APM_DO_ENABLE
 
 /**
@@ -1847,8 +1855,11 @@ static int apm(void *unused)
 	}
 
 	/* Install our power off handler.. */
-	if (power_off)
-		pm_power_off = apm_power_off;
+	if (power_off) {
+		error = register_poweroff_handler(&apm_poweroff_nb);
+		if (error)
+			pr_err("apm: Failed to register poweroff handler\n");
+	}
 
 	if (num_online_cpus() == 1 || smp) {
 #if defined(CONFIG_APM_DISPLAY_BLANK) && defined(CONFIG_VT)
@@ -2408,9 +2419,8 @@ static void __exit apm_exit(void)
 			apm_error("disengage power management", error);
 	}
 	misc_deregister(&apm_device);
+	unregister_poweroff_handler(&apm_poweroff_nb);
 	remove_proc_entry("apm", NULL);
-	if (power_off)
-		pm_power_off = NULL;
 	if (kapmd_task) {
 		kthread_stop(kapmd_task);
 		kapmd_task = NULL;
-- 
1.9.1

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From - Thu Nov 08 21:10:45 2018
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Subject: [PATCH 28/44] x86: olpc: Register xo1 poweroff handler with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:30 -0700
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Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with high priority value of 192 to reflect that
the driver explicitly wants to override default poweroff handlers.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/x86/platform/olpc/olpc-xo1-pm.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/arch/x86/platform/olpc/olpc-xo1-pm.c b/arch/x86/platform/olpc/olpc-xo1-pm.c
index a9acde7..96fba36 100644
--- a/arch/x86/platform/olpc/olpc-xo1-pm.c
+++ b/arch/x86/platform/olpc/olpc-xo1-pm.c
@@ -15,6 +15,7 @@
 #include <linux/cs5535.h>
 #include <linux/platform_device.h>
 #include <linux/export.h>
+#include <linux/notifier.h>
 #include <linux/pm.h>
 #include <linux/mfd/core.h>
 #include <linux/suspend.h>
@@ -92,7 +93,8 @@ asmlinkage __visible int xo1_do_sleep(u8 sleep_state)
 	return 0;
 }
 
-static void xo1_power_off(void)
+static int xo1_power_off(struct notifier_block *this, unsigned long unused1,
+			 void *unused2)
 {
 	printk(KERN_INFO "OLPC XO-1 power off sequence...\n");
 
@@ -108,8 +110,15 @@ static void xo1_power_off(void)
 
 	/* Write SLP_EN bit to start the machinery */
 	outl(0x00002000, acpi_base + CS5536_PM1_CNT);
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block xo1_poweroff_nb = {
+	.notifier_call = xo1_power_off,
+	.priority = 192,
+};
+
 static int xo1_power_state_valid(suspend_state_t pm_state)
 {
 	/* suspend-to-RAM only */
@@ -146,8 +155,12 @@ static int xo1_pm_probe(struct platform_device *pdev)
 
 	/* If we have both addresses, we can override the poweroff hook */
 	if (pms_base && acpi_base) {
+		err = register_poweroff_handler(&xo1_poweroff_nb);
+		if (err) {
+			dev_err(&pdev->dev, "Failed to register poweroff handler\n");
+			return err;
+		}
 		suspend_set_ops(&xo1_suspend_ops);
-		pm_power_off = xo1_power_off;
 		printk(KERN_INFO "OLPC XO-1 support registered\n");
 	}
 
@@ -158,12 +171,13 @@ static int xo1_pm_remove(struct platform_device *pdev)
 {
 	mfd_cell_disable(pdev);
 
+	unregister_poweroff_handler(&xo1_poweroff_nb);
+
 	if (strcmp(pdev->name, "cs5535-pms") == 0)
 		pms_base = 0;
 	else if (strcmp(pdev->name, "olpc-xo1-pm-acpi") == 0)
 		acpi_base = 0;
 
-	pm_power_off = NULL;
 	return 0;
 }
 
-- 
1.9.1


From - Thu Nov 08 21:10:46 2018
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From: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
Newsgroups: gmane.linux.ports.tegra,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 41/44] x86: pmc_atom: Register poweroff handler with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:43 -0700
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Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a low priority value of 64 to reflect that
the original code only sets pm_power_off if it was not already set.

Cc: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
Cc: Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: H. Peter Anvin <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 arch/x86/kernel/pmc_atom.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/pmc_atom.c b/arch/x86/kernel/pmc_atom.c
index 0c424a6..79331a2 100644
--- a/arch/x86/kernel/pmc_atom.c
+++ b/arch/x86/kernel/pmc_atom.c
@@ -20,6 +20,8 @@
 #include <linux/pci.h>
 #include <linux/device.h>
 #include <linux/debugfs.h>
+#include <linux/notifier.h>
+#include <linux/pm.h>
 #include <linux/seq_file.h>
 #include <linux/io.h>
 
@@ -92,7 +94,8 @@ static inline void pmc_reg_write(struct pmc_dev *pmc, int reg_offset, u32 val)
 	writel(val, pmc->regmap + reg_offset);
 }
 
-static void pmc_power_off(void)
+static int pmc_power_off(struct notifier_block *this, unsigned long unused1,
+			 void *unused2)
 {
 	u16	pm1_cnt_port;
 	u32	pm1_cnt_value;
@@ -107,8 +110,15 @@ static void pmc_power_off(void)
 	pm1_cnt_value |= SLEEP_ENABLE;
 
 	outl(pm1_cnt_value, pm1_cnt_port);
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block pmc_poweroff_nb = {
+	.notifier_call = pmc_power_off,
+	.priority = 64,
+};
+
 static void pmc_hw_reg_setup(struct pmc_dev *pmc)
 {
 	/*
@@ -247,8 +257,12 @@ static int pmc_setup_dev(struct pci_dev *pdev)
 	acpi_base_addr &= ACPI_BASE_ADDR_MASK;
 
 	/* Install power off function */
-	if (acpi_base_addr != 0 && pm_power_off == NULL)
-		pm_power_off = pmc_power_off;
+	if (acpi_base_addr != 0) {
+		ret = register_poweroff_handler(&pmc_poweroff_nb);
+		if (ret)
+			dev_err(&pdev->dev,
+				"Failed to install poweroff handler\n");
+	}
 
 	pci_read_config_dword(pdev, PMC_BASE_ADDR_OFFSET, &pmc->base_addr);
 	pmc->base_addr &= PMC_BASE_ADDR_MASK;
-- 
1.9.1


From - Thu Nov 08 21:10:46 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 22/44] power/reset: as3722-poweroff: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:24 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/6099>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a low priority value of 64 to reflect that
the original code only sets pm_power_off if it was not already set.

Cc: Sebastian Reichel <sre@kernel.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/power/reset/as3722-poweroff.c | 36 ++++++++++++++++++-----------------
 1 file changed, 19 insertions(+), 17 deletions(-)

diff --git a/drivers/power/reset/as3722-poweroff.c b/drivers/power/reset/as3722-poweroff.c
index 6849711..7ebaed9 100644
--- a/drivers/power/reset/as3722-poweroff.c
+++ b/drivers/power/reset/as3722-poweroff.c
@@ -17,32 +17,33 @@
 
 #include <linux/mfd/as3722.h>
 #include <linux/module.h>
+#include <linux/notifier.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/pm.h>
 #include <linux/slab.h>
 
 struct as3722_poweroff {
 	struct device *dev;
 	struct as3722 *as3722;
+	struct notifier_block poweroff_nb;
 };
 
-static struct as3722_poweroff *as3722_pm_poweroff;
-
-static void as3722_pm_power_off(void)
+static int as3722_power_off(struct notifier_block *this, unsigned long unused1,
+			    void *unused2)
 {
+	struct as3722_poweroff *as3722_poweroff =
+		container_of(this, struct as3722_poweroff, poweroff_nb);
 	int ret;
 
-	if (!as3722_pm_poweroff) {
-		pr_err("AS3722 poweroff is not initialised\n");
-		return;
-	}
-
-	ret = as3722_update_bits(as3722_pm_poweroff->as3722,
+	ret = as3722_update_bits(as3722_poweroff->as3722,
 		AS3722_RESET_CONTROL_REG, AS3722_POWER_OFF, AS3722_POWER_OFF);
 	if (ret < 0)
-		dev_err(as3722_pm_poweroff->dev,
+		dev_err(as3722_poweroff->dev,
 			"RESET_CONTROL_REG update failed, %d\n", ret);
+
+	return NOTIFY_DONE;
 }
 
 static int as3722_poweroff_probe(struct platform_device *pdev)
@@ -63,18 +64,19 @@ static int as3722_poweroff_probe(struct platform_device *pdev)
 
 	as3722_poweroff->as3722 = dev_get_drvdata(pdev->dev.parent);
 	as3722_poweroff->dev = &pdev->dev;
-	as3722_pm_poweroff = as3722_poweroff;
-	if (!pm_power_off)
-		pm_power_off = as3722_pm_power_off;
+	as3722_poweroff->poweroff_nb.notifier_call = as3722_power_off;
+	as3722_poweroff->poweroff_nb.priority = 64;
 
-	return 0;
+	platform_set_drvdata(pdev, as3722_poweroff);
+
+	return register_poweroff_handler(&as3722_poweroff->poweroff_nb);
 }
 
 static int as3722_poweroff_remove(struct platform_device *pdev)
 {
-	if (pm_power_off == as3722_pm_power_off)
-		pm_power_off = NULL;
-	as3722_pm_poweroff = NULL;
+	struct as3722_poweroff *as3722_poweroff = platform_get_drvdata(pdev);
+
+	unregister_poweroff_handler(&as3722_poweroff->poweroff_nb);
 
 	return 0;
 }
-- 
1.9.1

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Subject: [PATCH 29/44] staging: nvec: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:31 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/6215>

Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with default priority value of 128 since we don't know
any better.

Cc: Julian Andres Klode <jak@jak-linux.org>
Cc: Marc Dietrich <marvin24@gmx.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/staging/nvec/nvec.c | 24 +++++++++++++++---------
 drivers/staging/nvec/nvec.h |  2 ++
 2 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index a93208a..33d406c 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -33,6 +33,7 @@
 #include <linux/mfd/core.h>
 #include <linux/mutex.h>
 #include <linux/notifier.h>
+#include <linux/pm.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
@@ -80,8 +81,6 @@ enum nvec_sleep_subcmds {
 #define LID_SWITCH BIT(1)
 #define PWR_BUTTON BIT(15)
 
-static struct nvec_chip *nvec_power_handle;
-
 static const struct mfd_cell nvec_devices[] = {
 	{
 		.name = "nvec-kbd",
@@ -759,12 +758,17 @@ static void nvec_disable_i2c_slave(struct nvec_chip *nvec)
 }
 #endif
 
-static void nvec_power_off(void)
+static int nvec_power_off(struct notifier_block *this, unsigned long unused1,
+			  void *unused2)
 {
+	struct nvec_chip *nvec = container_of(this, struct nvec_chip,
+					      poweroff_nb);
 	char ap_pwr_down[] = { NVEC_SLEEP, AP_PWR_DOWN };
 
-	nvec_toggle_global_events(nvec_power_handle, false);
-	nvec_write_async(nvec_power_handle, ap_pwr_down, 2);
+	nvec_toggle_global_events(nvec, false);
+	nvec_write_async(nvec, ap_pwr_down, 2);
+
+	return NOTIFY_DONE;
 }
 
 /*
@@ -878,8 +882,11 @@ static int tegra_nvec_probe(struct platform_device *pdev)
 	nvec->nvec_status_notifier.notifier_call = nvec_status_notifier;
 	nvec_register_notifier(nvec, &nvec->nvec_status_notifier, 0);
 
-	nvec_power_handle = nvec;
-	pm_power_off = nvec_power_off;
+	nvec->poweroff_nb.notifier_call = nvec_power_off;
+	nvec->poweroff_nb.priority = 128;
+	ret = register_poweroff_handler(&nvec->poweroff_nb);
+	if (ret)
+		dev_err(nvec->dev, "Failed to register poweroff handler\n");
 
 	/* Get Firmware Version */
 	msg = nvec_write_sync(nvec, get_firmware_version, 2);
@@ -914,13 +921,12 @@ static int tegra_nvec_remove(struct platform_device *pdev)
 {
 	struct nvec_chip *nvec = platform_get_drvdata(pdev);
 
+	unregister_poweroff_handler(&nvec->poweroff_nb);
 	nvec_toggle_global_events(nvec, false);
 	mfd_remove_devices(nvec->dev);
 	nvec_unregister_notifier(nvec, &nvec->nvec_status_notifier);
 	cancel_work_sync(&nvec->rx_work);
 	cancel_work_sync(&nvec->tx_work);
-	/* FIXME: needs check wether nvec is responsible for power off */
-	pm_power_off = NULL;
 
 	return 0;
 }
diff --git a/drivers/staging/nvec/nvec.h b/drivers/staging/nvec/nvec.h
index e271375..e5ee2af 100644
--- a/drivers/staging/nvec/nvec.h
+++ b/drivers/staging/nvec/nvec.h
@@ -163,6 +163,8 @@ struct nvec_chip {
 	struct nvec_msg *last_sync_msg;
 
 	int state;
+
+	struct notifier_block poweroff_nb;
 };
 
 extern int nvec_write_async(struct nvec_chip *nvec, const unsigned char *data,
-- 
1.9.1


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Newsgroups: gmane.comp.emulators.xen.devel,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.kernel.efi,gmane.linux.ports.ia64,gmane.linux.kernel.virtualization.lguest,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.acpi.devel,gmane.linux.drivers.devicetree,gmane.linux.uml.devel,gmane.linux.power-management.general,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 21/44] power/reset: gpio-poweroff: Register with
	kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:23 -0700
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Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a low priority value of 64 to reflect that
the original code only sets pm_power_off if it was not already set.

Other changes:

Drop note that there can not be an additional instance of this driver.
The original reason no longer applies, it should be obvious that there
can only be one instance of the driver if static variables are used to
reflect its state, and support for multiple instances can now be added
easily if needed by avoiding static variables.

Do not create an error message if another poweroff handler has already been
registered. This is perfectly normal and acceptable.

Do not display a warning traceback if the poweroff handler fails to
power off the system. There may be other poweroff handlers.

Cc: Sebastian Reichel <sre@kernel.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/power/reset/gpio-poweroff.c | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/drivers/power/reset/gpio-poweroff.c b/drivers/power/reset/gpio-poweroff.c
index ce849bc..e95a7a1 100644
--- a/drivers/power/reset/gpio-poweroff.c
+++ b/drivers/power/reset/gpio-poweroff.c
@@ -14,18 +14,18 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <linux/notifier.h>
+#include <linux/pm.h>
 #include <linux/platform_device.h>
 #include <linux/gpio/consumer.h>
 #include <linux/of_platform.h>
 #include <linux/module.h>
 
-/*
- * Hold configuration here, cannot be more than one instance of the driver
- * since pm_power_off itself is global.
- */
 static struct gpio_desc *reset_gpio;
 
-static void gpio_poweroff_do_poweroff(void)
+static int gpio_poweroff_do_poweroff(struct notifier_block *this,
+				     unsigned long unused1, void *unused2)
+
 {
 	BUG_ON(!reset_gpio);
 
@@ -42,20 +42,18 @@ static void gpio_poweroff_do_poweroff(void)
 	/* give it some time */
 	mdelay(3000);
 
-	WARN_ON(1);
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block gpio_poweroff_nb = {
+	.notifier_call = gpio_poweroff_do_poweroff,
+	.priority = 64,
+};
+
 static int gpio_poweroff_probe(struct platform_device *pdev)
 {
 	bool input = false;
-
-	/* If a pm_power_off function has already been added, leave it alone */
-	if (pm_power_off != NULL) {
-		dev_err(&pdev->dev,
-			"%s: pm_power_off function already registered",
-		       __func__);
-		return -EBUSY;
-	}
+	int err;
 
 	reset_gpio = devm_gpiod_get(&pdev->dev, NULL);
 	if (IS_ERR(reset_gpio))
@@ -77,14 +75,16 @@ static int gpio_poweroff_probe(struct platform_device *pdev)
 		}
 	}
 
-	pm_power_off = &gpio_poweroff_do_poweroff;
-	return 0;
+	err = register_poweroff_handler(&gpio_poweroff_nb);
+	if (err)
+		dev_err(&pdev->dev, "Failed to register poweroff handler\n");
+
+	return err;
 }
 
 static int gpio_poweroff_remove(struct platform_device *pdev)
 {
-	if (pm_power_off == &gpio_poweroff_do_poweroff)
-		pm_power_off = NULL;
+	unregister_poweroff_handler(&gpio_poweroff_nb);
 
 	return 0;
 }
-- 
1.9.1

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Subject: [PATCH 20/44] power/reset: restart-poweroff: Register with kernel
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Register with kernel poweroff handler instead of seting pm_power_off
directly.  Register as poweroff handler of last resort since the driver
does not really power off the system but executes a restart.

Cc: Sebastian Reichel <sre@kernel.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/power/reset/restart-poweroff.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/power/reset/restart-poweroff.c b/drivers/power/reset/restart-poweroff.c
index edd707e..5437697 100644
--- a/drivers/power/reset/restart-poweroff.c
+++ b/drivers/power/reset/restart-poweroff.c
@@ -12,35 +12,34 @@
  */
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/notifier.h>
 #include <linux/platform_device.h>
 #include <linux/of_platform.h>
 #include <linux/module.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
-#include <asm/system_misc.h>
 
-static void restart_poweroff_do_poweroff(void)
+static int restart_poweroff_do_poweroff(struct notifier_block *this,
+					unsigned long unused1, void *unused2)
 {
 	reboot_mode = REBOOT_HARD;
 	machine_restart(NULL);
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block restart_poweroff_handler = {
+	.notifier_call = restart_poweroff_do_poweroff,
+};
+
 static int restart_poweroff_probe(struct platform_device *pdev)
 {
-	/* If a pm_power_off function has already been added, leave it alone */
-	if (pm_power_off != NULL) {
-		dev_err(&pdev->dev,
-			"pm_power_off function already registered");
-		return -EBUSY;
-	}
-
-	pm_power_off = &restart_poweroff_do_poweroff;
-	return 0;
+	return register_poweroff_handler(&restart_poweroff_handler);
 }
 
 static int restart_poweroff_remove(struct platform_device *pdev)
 {
-	if (pm_power_off == &restart_poweroff_do_poweroff)
-		pm_power_off = NULL;
+	unregister_poweroff_handler(&restart_poweroff_handler);
 
 	return 0;
 }
-- 
1.9.1

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Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a low priority value of 64 to reflect that
the original code only sets pm_power_off if it was not already set.

Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/mfd/tps80031.c       | 30 ++++++++++++++++++------------
 include/linux/mfd/tps80031.h |  2 ++
 2 files changed, 20 insertions(+), 12 deletions(-)

diff --git a/drivers/mfd/tps80031.c b/drivers/mfd/tps80031.c
index ed6c5b0..24625a6 100644
--- a/drivers/mfd/tps80031.c
+++ b/drivers/mfd/tps80031.c
@@ -147,7 +147,6 @@ static const struct tps80031_pupd_data tps80031_pupds[] = {
 	[TPS80031_CTLI2C_SCL]		= PUPD_DATA(4, 0,	BIT(2)),
 	[TPS80031_CTLI2C_SDA]		= PUPD_DATA(4, 0,	BIT(3)),
 };
-static struct tps80031 *tps80031_power_off_dev;
 
 int tps80031_ext_power_req_config(struct device *dev,
 		unsigned long ext_ctrl_flag, int preq_bit,
@@ -209,11 +208,17 @@ int tps80031_ext_power_req_config(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(tps80031_ext_power_req_config);
 
-static void tps80031_power_off(void)
+static int tps80031_power_off(struct notifier_block *this,
+			      unsigned long unused1, void *unused2)
 {
-	dev_info(tps80031_power_off_dev->dev, "switching off PMU\n");
-	tps80031_write(tps80031_power_off_dev->dev, TPS80031_SLAVE_ID1,
-				TPS80031_PHOENIX_DEV_ON, TPS80031_DEVOFF);
+	struct tps80031 *tps80031 = container_of(this, struct tps80031,
+						 poweroff_nb);
+
+	dev_info(tps80031->dev, "switching off PMU\n");
+	tps80031_write(tps80031->dev, TPS80031_SLAVE_ID1,
+		       TPS80031_PHOENIX_DEV_ON, TPS80031_DEVOFF);
+
+	return NOTIFY_DONE;
 }
 
 static void tps80031_pupd_init(struct tps80031 *tps80031,
@@ -501,9 +506,13 @@ static int tps80031_probe(struct i2c_client *client,
 		goto fail_mfd_add;
 	}
 
-	if (pdata->use_power_off && !pm_power_off) {
-		tps80031_power_off_dev = tps80031;
-		pm_power_off = tps80031_power_off;
+	if (pdata->use_power_off) {
+		tps80031->poweroff_nb.notifier_call = tps80031_power_off;
+		tps80031->poweroff_nb.priority = 64;
+		ret = register_poweroff_handler(&tps80031->poweroff_nb);
+		if (ret)
+			dev_err(&client->dev,
+				"Failed to register poweroff handler\n");
 	}
 	return 0;
 
@@ -523,10 +532,7 @@ static int tps80031_remove(struct i2c_client *client)
 	struct tps80031 *tps80031 = i2c_get_clientdata(client);
 	int i;
 
-	if (tps80031_power_off_dev == tps80031) {
-		tps80031_power_off_dev = NULL;
-		pm_power_off = NULL;
-	}
+	unregister_poweroff_handler(&tps80031->poweroff_nb);
 
 	mfd_remove_devices(tps80031->dev);
 
diff --git a/include/linux/mfd/tps80031.h b/include/linux/mfd/tps80031.h
index 2c75c9c..49bc006 100644
--- a/include/linux/mfd/tps80031.h
+++ b/include/linux/mfd/tps80031.h
@@ -24,6 +24,7 @@
 #define __LINUX_MFD_TPS80031_H
 
 #include <linux/device.h>
+#include <linux/notifier.h>
 #include <linux/regmap.h>
 
 /* Pull-ups/Pull-downs */
@@ -513,6 +514,7 @@ struct tps80031 {
 	struct i2c_client	*clients[TPS80031_NUM_SLAVES];
 	struct regmap		*regmap[TPS80031_NUM_SLAVES];
 	struct regmap_irq_chip_data *irq_data;
+	struct notifier_block	poweroff_nb;
 };
 
 struct tps80031_pupd_init_data {
-- 
1.9.1

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From - Thu Nov 08 21:10:46 2018
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From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.comp.emulators.xen.devel,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.kernel.efi,gmane.linux.ports.ia64,gmane.linux.kernel.virtualization.lguest,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.acpi.devel,gmane.linux.drivers.devicetree,gmane.linux.uml.devel,gmane.linux.power-management.general,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 08/44] kernel: Move pm_power_off to common code
Date: Mon,  6 Oct 2014 22:28:10 -0700
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Archived-At: <http://permalink.gmane.org/gmane.comp.emulators.xen.devel/218378>

pm_power_off is defined for all architectures. Move it to common code.

Have all architectures call do_kernel_poweroff instead of pm_power_off.
Some architectures point pm_power_off to machine_power_off. For those,
call do_kernel_poweroff from machine_power_off instead.

Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Chen Liqin <liqin.linux@gmail.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/alpha/kernel/process.c        |  9 +++------
 arch/arc/kernel/reset.c            |  5 +----
 arch/arm/kernel/process.c          |  5 +----
 arch/arm64/kernel/process.c        |  5 +----
 arch/avr32/kernel/process.c        |  6 +-----
 arch/blackfin/kernel/process.c     |  3 ---
 arch/blackfin/kernel/reboot.c      |  2 ++
 arch/c6x/kernel/process.c          |  9 +--------
 arch/cris/kernel/process.c         |  4 +---
 arch/frv/kernel/process.c          |  5 ++---
 arch/hexagon/kernel/reset.c        |  5 ++---
 arch/ia64/kernel/process.c         |  5 +----
 arch/m32r/kernel/process.c         |  8 ++++----
 arch/m68k/kernel/process.c         |  6 +-----
 arch/metag/kernel/process.c        |  6 +-----
 arch/microblaze/kernel/process.c   |  3 ---
 arch/microblaze/kernel/reset.c     |  1 +
 arch/mips/kernel/reset.c           |  6 +-----
 arch/mn10300/kernel/process.c      |  8 ++------
 arch/openrisc/kernel/process.c     |  8 +++++---
 arch/parisc/kernel/process.c       |  8 ++++----
 arch/powerpc/kernel/setup-common.c |  6 +++---
 arch/s390/kernel/setup.c           |  8 ++------
 arch/score/kernel/process.c        |  8 ++++----
 arch/sh/kernel/reboot.c            |  6 +-----
 arch/sparc/kernel/process_32.c     | 10 ++--------
 arch/sparc/kernel/reboot.c         |  8 ++------
 arch/tile/kernel/reboot.c          |  7 +++----
 arch/um/kernel/reboot.c            |  2 --
 arch/unicore32/kernel/process.c    |  9 +--------
 arch/x86/kernel/reboot.c           | 11 +++--------
 arch/x86/xen/enlighten.c           |  3 +--
 arch/xtensa/kernel/process.c       |  4 ----
 drivers/parisc/power.c             |  3 +--
 kernel/power/poweroff_handler.c    |  8 ++++++++
 kernel/reboot.c                    |  4 ++--
 36 files changed, 68 insertions(+), 146 deletions(-)

diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 1941a07..a463e8f 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -24,6 +24,7 @@
 #include <linux/vt.h>
 #include <linux/mman.h>
 #include <linux/elfcore.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
 #include <linux/tty.h>
 #include <linux/console.h>
@@ -40,12 +41,6 @@
 #include "proto.h"
 #include "pci_impl.h"
 
-/*
- * Power off function, if any
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 #ifdef CONFIG_ALPHA_WTINT
 /*
  * Sleep the CPU.
@@ -184,6 +179,8 @@ machine_halt(void)
 void
 machine_power_off(void)
 {
+	do_kernel_poweroff();
+
 	common_shutdown(LINUX_REBOOT_CMD_POWER_OFF, NULL);
 }
 
diff --git a/arch/arc/kernel/reset.c b/arch/arc/kernel/reset.c
index 2768fa1..8a4fc47 100644
--- a/arch/arc/kernel/reset.c
+++ b/arch/arc/kernel/reset.c
@@ -26,9 +26,6 @@ void machine_restart(char *__unused)
 
 void machine_power_off(void)
 {
-	/* FIXME ::  power off ??? */
+	do_kernel_poweroff();
 	machine_halt();
 }
-
-void (*pm_power_off) (void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 9fced7b..954e79c 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -117,8 +117,6 @@ void soft_restart(unsigned long addr)
 /*
  * Function pointers to optional machine specific functions
  */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
 
 void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
 
@@ -205,8 +203,7 @@ void machine_power_off(void)
 	local_irq_disable();
 	smp_send_stop();
 
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_poweroff();
 }
 
 /*
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index e0ef8ba..db396bb 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -94,8 +94,6 @@ void soft_restart(unsigned long addr)
 /*
  * Function pointers to optional machine specific functions
  */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL_GPL(pm_power_off);
 
 void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
 
@@ -155,8 +153,7 @@ void machine_power_off(void)
 {
 	local_irq_disable();
 	smp_send_stop();
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_poweroff();
 }
 
 /*
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 42a53e74..c6774d8 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -23,9 +23,6 @@
 
 #include <mach/pm.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * This file handles the architecture-dependent parts of process handling..
  */
@@ -48,8 +45,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_poweroff();
 }
 
 void machine_restart(char *cmd)
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 4aa5545..812dd83 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -39,9 +39,6 @@ int nr_l1stack_tasks;
 void *l1_stack_base;
 unsigned long l1_stack_len;
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * The idle loop on BFIN
  */
diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
index c4f50a3..1da27d1 100644
--- a/arch/blackfin/kernel/reboot.c
+++ b/arch/blackfin/kernel/reboot.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/interrupt.h>
+#include <linux/pm.h>
 #include <asm/bfin-global.h>
 #include <asm/reboot.h>
 #include <asm/bfrom.h>
@@ -106,6 +107,7 @@ void machine_halt(void)
 __attribute__((weak))
 void native_machine_power_off(void)
 {
+	do_kernel_poweroff();
 	idle_with_irq_disabled();
 }
 
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 57d2ea8..ddc4a61 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -27,12 +27,6 @@ void	(*c6x_halt)(void);
 extern asmlinkage void ret_from_fork(void);
 extern asmlinkage void ret_from_kernel_thread(void);
 
-/*
- * power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void arch_cpu_idle(void)
 {
 	unsigned long tmp;
@@ -73,8 +67,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_poweroff();
 	halt_loop();
 }
 
diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index b78498e..eaafad0 100644
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -31,9 +31,6 @@
 
 extern void default_idle(void);
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void arch_cpu_idle(void)
 {
 	default_idle();
@@ -60,6 +57,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
+	do_kernel_poweroff();
 }
 
 /*
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index 5d40aeb77..a673725 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -42,9 +42,6 @@ asmlinkage void ret_from_kernel_thread(void);
 
 #include <asm/pgalloc.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 static void core_sleep_idle(void)
 {
 #ifdef LED_DEBUG_SLEEP
@@ -107,6 +104,8 @@ void machine_power_off(void)
 	gdbstub_exit(0);
 #endif
 
+	do_kernel_poweroff();
+
 	for (;;);
 }
 
diff --git a/arch/hexagon/kernel/reset.c b/arch/hexagon/kernel/reset.c
index 76483c1..cfb8e3663 100644
--- a/arch/hexagon/kernel/reset.c
+++ b/arch/hexagon/kernel/reset.c
@@ -16,11 +16,13 @@
  * 02110-1301, USA.
  */
 
+#include <linux/pm.h>
 #include <linux/smp.h>
 #include <asm/hexagon_vm.h>
 
 void machine_power_off(void)
 {
+	do_kernel_poweroff();
 	smp_send_stop();
 	__vmstop();
 }
@@ -32,6 +34,3 @@ void machine_halt(void)
 void machine_restart(char *cmd)
 {
 }
-
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index deed6fa..ac68302 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -57,8 +57,6 @@ void (*ia64_mark_idle)(int);
 
 unsigned long boot_option_idle_override = IDLE_NO_OVERRIDE;
 EXPORT_SYMBOL(boot_option_idle_override);
-void (*pm_power_off) (void);
-EXPORT_SYMBOL(pm_power_off);
 
 void
 ia64_do_show_stack (struct unw_frame_info *info, void *arg)
@@ -675,8 +673,7 @@ machine_halt (void)
 void
 machine_power_off (void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_poweroff();
 	machine_halt();
 }
 
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index e69221d..b71c852 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -23,6 +23,7 @@
 #include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/module.h>
+#include <linux/pm.h>
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
 #include <linux/hardirq.h>
@@ -44,9 +45,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 	return tsk->thread.lr;
 }
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_restart(char *__unused)
 {
 #if defined(CONFIG_PLAT_MAPPI3)
@@ -67,7 +65,9 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	/* M32R_FIXME */
+	do_kernel_poweroff();
+	for (;;)
+		;
 }
 
 void show_regs(struct pt_regs * regs)
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index afe3d6e..f2c02fe 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -78,14 +78,10 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_poweroff();
 	for (;;);
 }
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 void show_regs(struct pt_regs * regs)
 {
 	printk("\n");
diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
index 483dff9..d725043 100644
--- a/arch/metag/kernel/process.c
+++ b/arch/metag/kernel/process.c
@@ -67,9 +67,6 @@ void arch_cpu_idle_dead(void)
 }
 #endif
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void (*soc_restart)(char *cmd);
 void (*soc_halt)(void);
 
@@ -90,8 +87,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_poweroff();
 	smp_send_stop();
 	hard_processor_halt(HALT_OK);
 }
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index b2dd371..0ebca36 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -44,9 +44,6 @@ void show_regs(struct pt_regs *regs)
 				regs->msr, regs->ear, regs->esr, regs->fsr);
 }
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void flush_thread(void)
 {
 }
diff --git a/arch/microblaze/kernel/reset.c b/arch/microblaze/kernel/reset.c
index fbe58c6..9498ee7 100644
--- a/arch/microblaze/kernel/reset.c
+++ b/arch/microblaze/kernel/reset.c
@@ -103,6 +103,7 @@ void machine_halt(void)
 void machine_power_off(void)
 {
 	pr_notice("Machine power off...\n");
+	do_kernel_poweroff();
 	while (1)
 		;
 }
diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
index 07fc524..f5e134d 100644
--- a/arch/mips/kernel/reset.c
+++ b/arch/mips/kernel/reset.c
@@ -21,9 +21,6 @@
  */
 void (*_machine_restart)(char *command);
 void (*_machine_halt)(void);
-void (*pm_power_off)(void);
-
-EXPORT_SYMBOL(pm_power_off);
 
 void machine_restart(char *command)
 {
@@ -39,6 +36,5 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_poweroff();
 }
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 3707da5..00d8b61 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -20,6 +20,7 @@
 #include <linux/user.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
 #include <linux/percpu.h>
 #include <linux/err.h>
@@ -45,12 +46,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 }
 
 /*
- * power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
-/*
  * On SMP it's slightly faster (but much more power-consuming!)
  * to poll the ->work.need_resched flag instead of waiting for the
  * cross-CPU IPI to arrive. Use this option with caution.
@@ -93,6 +88,7 @@ void machine_power_off(void)
 #ifdef CONFIG_KERNEL_DEBUGGER
 	gdbstub_exit(0);
 #endif
+	do_kernel_poweroff();
 }
 
 void show_regs(struct pt_regs *regs)
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index 386af25..f3ad1bc 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -25,6 +25,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mm.h>
+#include <linux/pm.h>
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
@@ -51,7 +52,7 @@
  */
 struct thread_info *current_thread_info_set[NR_CPUS] = { &init_thread_info, };
 
-void machine_restart(void)
+void machine_restart(char *cmd)
 {
 	printk(KERN_INFO "*** MACHINE RESTART ***\n");
 	__asm__("l.nop 1");
@@ -72,11 +73,12 @@ void machine_halt(void)
 void machine_power_off(void)
 {
 	printk(KERN_INFO "*** MACHINE POWER OFF ***\n");
+
+	do_kernel_poweroff();
+
 	__asm__("l.nop 1");
 }
 
-void (*pm_power_off) (void) = machine_power_off;
-
 /*
  * When a process does an "exec", machine state like FPU and debug
  * registers need to be reset.  This is a hook function for that.
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 0bbbf0d..5f1d2af 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -41,6 +41,7 @@
 #include <linux/fs.h>
 #include <linux/module.h>
 #include <linux/personality.h>
+#include <linux/pm.h>
 #include <linux/ptrace.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
@@ -133,7 +134,9 @@ void machine_power_off(void)
 	pdc_soft_power_button(0);
 	
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
-		
+
+	do_kernel_poweroff();
+
 	/* It seems we have no way to power the system off via
 	 * software. The user has to press the button himself. */
 
@@ -141,9 +144,6 @@ void machine_power_off(void)
 	       "Please power this system off now.");
 }
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * Free current thread data structures etc..
  */
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 1b0e260..b6b5fcb 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -140,6 +140,9 @@ void machine_power_off(void)
 	machine_shutdown();
 	if (ppc_md.power_off)
 		ppc_md.power_off();
+
+	do_kernel_poweroff();
+
 #ifdef CONFIG_SMP
 	smp_send_stop();
 #endif
@@ -150,9 +153,6 @@ void machine_power_off(void)
 /* Used by the G5 thermal driver */
 EXPORT_SYMBOL_GPL(machine_power_off);
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL_GPL(pm_power_off);
-
 void machine_halt(void)
 {
 	machine_shutdown();
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 82bc113..1fa182f 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -263,13 +263,9 @@ void machine_power_off(void)
 		 */
 		console_unblank();
 	_machine_power_off();
-}
 
-/*
- * Dummy power off function.
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL_GPL(pm_power_off);
+	do_kernel_poweroff();
+}
 
 static int __init early_parse_mem(char *p)
 {
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index a1519ad3..cf9531a 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -29,9 +29,6 @@
 #include <linux/pm.h>
 #include <linux/rcupdate.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 /* If or when software machine-restart is implemented, add code here. */
 void machine_restart(char *command) {}
 
@@ -39,7 +36,10 @@ void machine_restart(char *command) {}
 void machine_halt(void) {}
 
 /* If or when software machine-power-off is implemented, add code here. */
-void machine_power_off(void) {}
+void machine_power_off(void)
+{
+	do_kernel_poweroff();
+}
 
 void ret_from_fork(void);
 void ret_from_kernel_thread(void);
diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c
index 04afe5b..e59b2aa 100644
--- a/arch/sh/kernel/reboot.c
+++ b/arch/sh/kernel/reboot.c
@@ -11,9 +11,6 @@
 #include <asm/tlbflush.h>
 #include <asm/traps.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 #ifdef CONFIG_SUPERH32
 static void watchdog_trigger_immediate(void)
 {
@@ -51,8 +48,7 @@ static void native_machine_shutdown(void)
 
 static void native_machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_poweroff();
 }
 
 static void native_machine_halt(void)
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 50e7b62..3138191 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -48,14 +48,6 @@
  */
 void (*sparc_idle)(void);
 
-/* 
- * Power-off handler instantiation for pm.h compliance
- * This is done via auxio, but could be used as a fallback
- * handler when auxio is not present-- unused for now...
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * sysctl - toggle power-off restriction for serial console 
  * systems in machine_power_off()
@@ -112,6 +104,8 @@ void machine_power_off(void)
 		sbus_writeb(power_register, auxio_power_register);
 	}
 
+	do_kernel_poweroff();
+
 	machine_halt();
 }
 
diff --git a/arch/sparc/kernel/reboot.c b/arch/sparc/kernel/reboot.c
index eba7d91..6717c5d 100644
--- a/arch/sparc/kernel/reboot.c
+++ b/arch/sparc/kernel/reboot.c
@@ -16,17 +16,13 @@
  */
 int scons_pwroff = 1;
 
-/* This isn't actually used, it exists merely to satisfy the
- * reference in kernel/sys.c
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_power_off(void)
 {
 	if (strcmp(of_console_device->type, "serial") || scons_pwroff)
 		prom_halt_power_off();
 
+	do_kernel_poweroff();
+
 	prom_halt();
 }
 
diff --git a/arch/tile/kernel/reboot.c b/arch/tile/kernel/reboot.c
index 6c5d2c0..706d3bd 100644
--- a/arch/tile/kernel/reboot.c
+++ b/arch/tile/kernel/reboot.c
@@ -36,6 +36,9 @@ void machine_power_off(void)
 {
 	arch_local_irq_disable_all();
 	smp_send_stop();
+
+	do_kernel_poweroff();
+
 	hv_power_off();
 }
 
@@ -45,7 +48,3 @@ void machine_restart(char *cmd)
 	smp_send_stop();
 	hv_restart((HV_VirtAddr) "vmlinux", (HV_VirtAddr) cmd);
 }
-
-/* No interesting distinction to be made here. */
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index ced8903..a82ef28 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -11,8 +11,6 @@
 #include <os.h>
 #include <skas.h>
 
-void (*pm_power_off)(void);
-
 static void kill_off_processes(void)
 {
 	if (proc_mm)
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index b008e99..2d5d522 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -56,16 +56,9 @@ void machine_halt(void)
 	gpio_set_value(GPO_SOFT_OFF, 0);
 }
 
-/*
- * Function pointers to optional machine specific functions
- */
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_poweroff();
 	machine_halt();
 }
 
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 17962e6..7a5cc87 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -30,12 +30,6 @@
 #include <asm/x86_init.h>
 #include <asm/efi.h>
 
-/*
- * Power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 static const struct desc_ptr no_idt = {};
 
 /*
@@ -647,11 +641,12 @@ static void native_machine_halt(void)
 
 static void native_machine_power_off(void)
 {
-	if (pm_power_off) {
+	if (have_kernel_poweroff()) {
 		if (!reboot_force)
 			machine_shutdown();
-		pm_power_off();
+		do_kernel_poweroff();
 	}
+
 	/* A fallback in case there is no PM info available */
 	tboot_shutdown(TB_SHUTDOWN_HALT);
 }
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index c0cb11f..ab8e056 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1320,8 +1320,7 @@ static void xen_machine_halt(void)
 
 static void xen_machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_poweroff();
 	xen_reboot(SHUTDOWN_poweroff);
 }
 
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 1c85323..c487296 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -49,10 +49,6 @@ extern void ret_from_kernel_thread(void);
 
 struct task_struct *current_set[NR_CPUS] = {&init_task, };
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
-
 #if XTENSA_HAVE_COPROCESSORS
 
 void coprocessor_release_all(struct thread_info *ti)
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index 90cca5e..de5b2ff 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -95,8 +95,7 @@ static void process_shutdown(void)
 		/* send kill signal */
 		if (kill_cad_pid(SIGINT, 1)) {
 			/* just in case killing init process failed */
-			if (pm_power_off)
-				pm_power_off();
+			kernel_power_off();
 		}
 	}
 }
diff --git a/kernel/power/poweroff_handler.c b/kernel/power/poweroff_handler.c
index ed99e5e..96f59ef 100644
--- a/kernel/power/poweroff_handler.c
+++ b/kernel/power/poweroff_handler.c
@@ -20,6 +20,12 @@
 #include <linux/types.h>
 
 /*
+ * If set, calling this function will power off the system immediately.
+ */
+void (*pm_power_off)(void);
+EXPORT_SYMBOL(pm_power_off);
+
+/*
  *	Notifier list for kernel code which wants to be called
  *	to power off the system.
  */
@@ -157,6 +163,8 @@ int register_poweroff_handler_simple(void (*handler)(void), int priority)
  */
 void do_kernel_poweroff(void)
 {
+	if (pm_power_off)
+		pm_power_off();
 	atomic_notifier_call_chain(&poweroff_handler_list, 0, NULL);
 }
 
diff --git a/kernel/reboot.c b/kernel/reboot.c
index 5925f5a..897e275 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c
@@ -306,9 +306,9 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd,
 		return ret;
 
 	/* Instead of trying to make the power_off code look like
-	 * halt when pm_power_off is not set do it the easy way.
+	 * halt when no poweroff handler exists do it the easy way.
 	 */
-	if ((cmd == LINUX_REBOOT_CMD_POWER_OFF) && !pm_power_off)
+	if (cmd == LINUX_REBOOT_CMD_POWER_OFF && !have_kernel_poweroff())
 		cmd = LINUX_REBOOT_CMD_HALT;
 
 	mutex_lock(&reboot_mutex);
-- 
1.9.1

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Subject: [PATCH 33/44] avr32: atngw100: Register with kernel poweroff handler
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/330>

Register with kernel poweroff handler instead of setting pm_power_off
directly.

Cc: Haavard Skinnemoen <hskinnemoen-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Hans-Christian Egtvedt <egtvedt-BrfabpQBY5qlHtIdYg32fQ@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 arch/avr32/boards/atngw100/mrmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/avr32/boards/atngw100/mrmt.c b/arch/avr32/boards/atngw100/mrmt.c
index 91146b4..54d0c27 100644
--- a/arch/avr32/boards/atngw100/mrmt.c
+++ b/arch/avr32/boards/atngw100/mrmt.c
@@ -274,7 +274,7 @@ static int __init mrmt1_init(void)
 {
 	gpio_set_value( PIN_PWR_ON, 1 );	/* Ensure PWR_ON is enabled */
 
-	pm_power_off = mrmt_power_off;
+	register_poweroff_handler_simple(mrmt_power_off, 128);
 
 	/* Setup USARTS (other than console) */
 	at32_map_usart(2, 1, 0);	/* USART 2: /dev/ttyS1, RMT1:DB9M */
-- 
1.9.1

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From - Thu Nov 08 21:10:46 2018
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 35/44] m68k: Register with kernel poweroff handler
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Register with kernel poweroff handler instead of setting pm_power_off
directly.

Cc: Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>
Cc: Joshua Thompson <funaho-E7XWuSn13XjYtjvyW6yDsg@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 arch/m68k/emu/natfeat.c | 2 +-
 arch/m68k/mac/config.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/m68k/emu/natfeat.c b/arch/m68k/emu/natfeat.c
index 91e2ae7..c4d5bd8 100644
--- a/arch/m68k/emu/natfeat.c
+++ b/arch/m68k/emu/natfeat.c
@@ -91,5 +91,5 @@ void __init nf_init(void)
 	pr_info("NatFeats found (%s, %lu.%lu)\n", buf, version >> 16,
 		version & 0xffff);
 
-	pm_power_off = nf_poweroff;
+	register_poweroff_handler_simple(nf_poweroff, 128);
 }
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index 677913ff..5d8e2e6 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -160,7 +160,7 @@ void __init config_mac(void)
 	mach_set_clock_mmss = mac_set_clock_mmss;
 	mach_reset = mac_reset;
 	mach_halt = mac_poweroff;
-	pm_power_off = mac_poweroff;
+	register_poweroff_handler_simple(mac_poweroff, 128);
 	mach_max_dma_address = 0xffffffff;
 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
 	mach_beep = mac_mksound;
-- 
1.9.1

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From - Thu Nov 08 21:10:46 2018
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Subject: [PATCH 19/44] ipmi: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:21 -0700
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Register with kernel poweroff handler instead of setting pm_power_off
directly. Register with a high priority value of 192 to reflect that
the original code overwrites pm_power_off unconditionally.

Register poweroff handler after the ipmi system is ready, and unregister
it prior to cleanup. This avoids having to check for the ready variable
in the poweroff callback.

Cc: Corey Minyard <minyard@acm.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/char/ipmi/ipmi_poweroff.c | 30 +++++++++++++++++++-----------
 1 file changed, 19 insertions(+), 11 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_poweroff.c b/drivers/char/ipmi/ipmi_poweroff.c
index 9f2e3be..a942a41 100644
--- a/drivers/char/ipmi/ipmi_poweroff.c
+++ b/drivers/char/ipmi/ipmi_poweroff.c
@@ -36,6 +36,7 @@
 #include <linux/proc_fs.h>
 #include <linux/string.h>
 #include <linux/completion.h>
+#include <linux/notifier.h>
 #include <linux/pm.h>
 #include <linux/kdev_t.h>
 #include <linux/ipmi.h>
@@ -63,9 +64,6 @@ static ipmi_user_t ipmi_user;
 static int ipmi_ifnum;
 static void (*specific_poweroff_func)(ipmi_user_t user);
 
-/* Holds the old poweroff function so we can restore it on removal. */
-static void (*old_poweroff_func)(void);
-
 static int set_param_ifnum(const char *val, struct kernel_param *kp)
 {
 	int rv = param_set_int(val, kp);
@@ -544,15 +542,20 @@ static struct poweroff_function poweroff_functions[] = {
 
 
 /* Called on a powerdown request. */
-static void ipmi_poweroff_function(void)
+static int ipmi_poweroff_function(struct notifier_block *this,
+				  unsigned long unused1, void *unused2)
 {
-	if (!ready)
-		return;
-
 	/* Use run-to-completion mode, since interrupts may be off. */
 	specific_poweroff_func(ipmi_user);
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block ipmi_poweroff_nb = {
+	.notifier_call = ipmi_poweroff_function,
+	.priority = 192,
+};
+
 /* Wait for an IPMI interface to be installed, the first one installed
    will be grabbed by this code and used to perform the powerdown. */
 static void ipmi_po_new_smi(int if_num, struct device *device)
@@ -631,9 +634,12 @@ static void ipmi_po_new_smi(int if_num, struct device *device)
 	printk(KERN_INFO PFX "Found a %s style poweroff function\n",
 	       poweroff_functions[i].platform_type);
 	specific_poweroff_func = poweroff_functions[i].poweroff_func;
-	old_poweroff_func = pm_power_off;
-	pm_power_off = ipmi_poweroff_function;
+
 	ready = 1;
+
+	rv = register_poweroff_handler(&ipmi_poweroff_nb);
+	if (rv)
+		pr_err(PFX "failed to register poweroff handler\n");
 }
 
 static void ipmi_po_smi_gone(int if_num)
@@ -644,9 +650,10 @@ static void ipmi_po_smi_gone(int if_num)
 	if (ipmi_ifnum != if_num)
 		return;
 
+	unregister_poweroff_handler(&ipmi_poweroff_nb);
+
 	ready = 0;
 	ipmi_destroy_user(ipmi_user);
-	pm_power_off = old_poweroff_func;
 }
 
 static struct ipmi_smi_watcher smi_watcher = {
@@ -732,12 +739,13 @@ static void __exit ipmi_poweroff_cleanup(void)
 
 	ipmi_smi_watcher_unregister(&smi_watcher);
 
+	unregister_poweroff_handler(&ipmi_poweroff_nb);
+
 	if (ready) {
 		rv = ipmi_destroy_user(ipmi_user);
 		if (rv)
 			printk(KERN_ERR PFX "could not cleanup the IPMI"
 			       " user: 0x%x\n", rv);
-		pm_power_off = old_poweroff_func;
 	}
 }
 module_exit(ipmi_poweroff_cleanup);
-- 
1.9.1


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Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 37/44] sh: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:39 -0700
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Register with kernel poweroff handler instead of setting pm_power_off
directly.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/sh/boards/board-sh7785lcr.c       | 2 +-
 arch/sh/boards/board-urquell.c         | 2 +-
 arch/sh/boards/mach-highlander/setup.c | 2 +-
 arch/sh/boards/mach-landisk/setup.c    | 2 +-
 arch/sh/boards/mach-r2d/setup.c        | 2 +-
 arch/sh/boards/mach-sdk7786/setup.c    | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/sh/boards/board-sh7785lcr.c b/arch/sh/boards/board-sh7785lcr.c
index 2c4771e..c092402 100644
--- a/arch/sh/boards/board-sh7785lcr.c
+++ b/arch/sh/boards/board-sh7785lcr.c
@@ -332,7 +332,7 @@ static void __init sh7785lcr_setup(char **cmdline_p)
 
 	printk(KERN_INFO "Renesas Technology Corp. R0P7785LC0011RL support.\n");
 
-	pm_power_off = sh7785lcr_power_off;
+	register_poweroff_handler_simple(sh7785lcr_power_off, 128);
 
 	/* sm501 DRAM configuration */
 	sm501_reg = ioremap_nocache(SM107_REG_ADDR, SM501_DRAM_CONTROL);
diff --git a/arch/sh/boards/board-urquell.c b/arch/sh/boards/board-urquell.c
index b52abcc..b3fa56f 100644
--- a/arch/sh/boards/board-urquell.c
+++ b/arch/sh/boards/board-urquell.c
@@ -204,7 +204,7 @@ static void __init urquell_setup(char **cmdline_p)
 {
 	printk(KERN_INFO "Renesas Technology Corp. Urquell support.\n");
 
-	pm_power_off = urquell_power_off;
+	register_poweroff_handler_simple(urquell_power_off, 128);
 
 	register_smp_ops(&shx3_smp_ops);
 }
diff --git a/arch/sh/boards/mach-highlander/setup.c b/arch/sh/boards/mach-highlander/setup.c
index 4a52590..998f1a5 100644
--- a/arch/sh/boards/mach-highlander/setup.c
+++ b/arch/sh/boards/mach-highlander/setup.c
@@ -385,7 +385,7 @@ static void __init highlander_setup(char **cmdline_p)
 
 	__raw_writew(__raw_readw(PA_IVDRCTL) | 0x01, PA_IVDRCTL);	/* Si13112 */
 
-	pm_power_off = r7780rp_power_off;
+	register_poweroff_handler_simple(r7780rp_power_off, 128);
 }
 
 static unsigned char irl2irq[HL_NR_IRL];
diff --git a/arch/sh/boards/mach-landisk/setup.c b/arch/sh/boards/mach-landisk/setup.c
index f1147ca..c817d80 100644
--- a/arch/sh/boards/mach-landisk/setup.c
+++ b/arch/sh/boards/mach-landisk/setup.c
@@ -89,7 +89,7 @@ static void __init landisk_setup(char **cmdline_p)
 	__raw_writeb(__raw_readb(PA_LED) | 0x03, PA_LED);
 
 	printk(KERN_INFO "I-O DATA DEVICE, INC. \"LANDISK Series\" support.\n");
-	pm_power_off = landisk_power_off;
+	register_poweroff_handler_simple(landisk_power_off, 128);
 }
 
 /*
diff --git a/arch/sh/boards/mach-r2d/setup.c b/arch/sh/boards/mach-r2d/setup.c
index 4b98a52..a759d39 100644
--- a/arch/sh/boards/mach-r2d/setup.c
+++ b/arch/sh/boards/mach-r2d/setup.c
@@ -279,7 +279,7 @@ static void __init rts7751r2d_setup(char **cmdline_p)
 					(ver >> 4) & 0xf, ver & 0xf);
 
 	__raw_writew(0x0000, PA_OUTPORT);
-	pm_power_off = rts7751r2d_power_off;
+	register_poweroff_handler_simple(rts7751r2d_power_off, 128);
 
 	/* sm501 dram configuration:
 	 * ColSizeX = 11 - External Memory Column Size: 256 words.
diff --git a/arch/sh/boards/mach-sdk7786/setup.c b/arch/sh/boards/mach-sdk7786/setup.c
index c29268b..cb26336 100644
--- a/arch/sh/boards/mach-sdk7786/setup.c
+++ b/arch/sh/boards/mach-sdk7786/setup.c
@@ -252,7 +252,7 @@ static void __init sdk7786_setup(char **cmdline_p)
 	pr_info("\tPCB revision:\t%d\n", fpga_read_reg(PCBRR) & 0xf);
 
 	machine_ops.restart = sdk7786_restart;
-	pm_power_off = sdk7786_power_off;
+	register_poweroff_handler_simple(sdk7786_power_off, 128);
 
 	register_smp_ops(&shx3_smp_ops);
 }
-- 
1.9.1


From - Thu Nov 08 21:10:47 2018
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From: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 25/44] power/reset: vexpress-poweroff: Register with kernel poweroff handler
Date: Mon,  6 Oct 2014 22:28:27 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/334>

Register with kernel poweroff handler instead of setting pm_power_off
directly.

Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 drivers/power/reset/vexpress-poweroff.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/power/reset/vexpress-poweroff.c b/drivers/power/reset/vexpress-poweroff.c
index 4dc102e2..060c55d 100644
--- a/drivers/power/reset/vexpress-poweroff.c
+++ b/drivers/power/reset/vexpress-poweroff.c
@@ -12,6 +12,7 @@
  */
 
 #include <linux/delay.h>
+#include <linux/notifier.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
@@ -36,11 +37,19 @@ static void vexpress_reset_do(struct device *dev, const char *what)
 
 static struct device *vexpress_power_off_device;
 
-static void vexpress_power_off(void)
+static int vexpress_power_off(struct notifier_block *this,
+			      unsigned long unused1, void *unused2)
 {
 	vexpress_reset_do(vexpress_power_off_device, "power off");
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block vexpress_poweroff_nb = {
+	.notifier_call = vexpress_power_off,
+	.priority = 128,
+};
+
 static struct device *vexpress_restart_device;
 
 static void vexpress_restart(enum reboot_mode reboot_mode, const char *cmd)
@@ -92,6 +101,7 @@ static int vexpress_reset_probe(struct platform_device *pdev)
 	const struct of_device_id *match =
 			of_match_device(vexpress_reset_of_match, &pdev->dev);
 	struct regmap *regmap;
+	int ret;
 
 	if (match)
 		func = (enum vexpress_reset_func)match->data;
@@ -106,7 +116,12 @@ static int vexpress_reset_probe(struct platform_device *pdev)
 	switch (func) {
 	case FUNC_SHUTDOWN:
 		vexpress_power_off_device = &pdev->dev;
-		pm_power_off = vexpress_power_off;
+		ret = register_poweroff_handler(&vexpress_poweroff_nb);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"Failed to register poweroff handler\n");
+			return ret;
+		}
 		break;
 	case FUNC_RESET:
 		if (!vexpress_restart_device)
-- 
1.9.1

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From - Thu Nov 08 21:10:47 2018
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: [PATCH 36/44] mips: Register with kernel poweroff handler
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/335>

Register with kernel poweroff handler instead of setting pm_power_off
directly.

If there is an indication that there can be more than one poweroff handler,
use register_poweroff_handler, otherwise use register_poweroff_handler_simple
to register the poweroff handler.

If the poweroff handler only resets or stops the system, select a priority of
0 to indicate that the poweroff handler is one of last resort. If the poweroff
handler powers off the system, select a priority of 128, unless the poweroff
handler installation code suggests that there can be more than one poweroff
handler and the new handler is only installed conditionally. In this case,
select a priority of 64.

Cc: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
Cc: Maciej W. Rozycki <macro-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
---
 arch/mips/alchemy/board-gpr.c          |  2 +-
 arch/mips/alchemy/board-mtx1.c         |  2 +-
 arch/mips/alchemy/board-xxs1500.c      |  2 +-
 arch/mips/alchemy/devboards/platform.c | 17 +++++++++++++++--
 arch/mips/ar7/setup.c                  |  2 +-
 arch/mips/ath79/setup.c                |  2 +-
 arch/mips/bcm47xx/setup.c              |  2 +-
 arch/mips/bcm63xx/setup.c              |  2 +-
 arch/mips/cobalt/setup.c               |  2 +-
 arch/mips/dec/setup.c                  |  2 +-
 arch/mips/emma/markeins/setup.c        |  2 +-
 arch/mips/jz4740/reset.c               |  2 +-
 arch/mips/lantiq/falcon/reset.c        |  2 +-
 arch/mips/lantiq/xway/reset.c          |  2 +-
 arch/mips/lasat/reset.c                |  2 +-
 arch/mips/loongson/common/reset.c      |  2 +-
 arch/mips/loongson1/common/reset.c     |  2 +-
 arch/mips/mti-malta/malta-reset.c      |  2 +-
 arch/mips/mti-sead3/sead3-reset.c      |  2 +-
 arch/mips/netlogic/xlp/setup.c         |  2 +-
 arch/mips/netlogic/xlr/setup.c         |  2 +-
 arch/mips/pmcs-msp71xx/msp_setup.c     |  2 +-
 arch/mips/pnx833x/common/setup.c       |  2 +-
 arch/mips/ralink/reset.c               |  2 +-
 arch/mips/rb532/setup.c                |  2 +-
 arch/mips/sgi-ip22/ip22-reset.c        |  2 +-
 arch/mips/sgi-ip27/ip27-reset.c        |  2 +-
 arch/mips/sgi-ip32/ip32-reset.c        |  2 +-
 arch/mips/sibyte/common/cfe.c          |  2 +-
 arch/mips/sni/setup.c                  |  2 +-
 arch/mips/txx9/generic/setup.c         |  2 +-
 arch/mips/vr41xx/common/pmu.c          |  2 +-
 32 files changed, 46 insertions(+), 33 deletions(-)

diff --git a/arch/mips/alchemy/board-gpr.c b/arch/mips/alchemy/board-gpr.c
index acf9a2a..56190a3 100644
--- a/arch/mips/alchemy/board-gpr.c
+++ b/arch/mips/alchemy/board-gpr.c
@@ -89,7 +89,7 @@ void __init board_setup(void)
 {
 	printk(KERN_INFO "Trapeze ITS GPR board\n");
 
-	pm_power_off = gpr_power_off;
+	register_poweroff_handler_simple(gpr_power_off, 0);
 	_machine_halt = gpr_power_off;
 	_machine_restart = gpr_reset;
 
diff --git a/arch/mips/alchemy/board-mtx1.c b/arch/mips/alchemy/board-mtx1.c
index 1e3b102..e2b06b5 100644
--- a/arch/mips/alchemy/board-mtx1.c
+++ b/arch/mips/alchemy/board-mtx1.c
@@ -98,7 +98,7 @@ void __init board_setup(void)
 	alchemy_gpio_direction_output(211, 1);	/* green on */
 	alchemy_gpio_direction_output(212, 0);	/* red off */
 
-	pm_power_off = mtx1_power_off;
+	register_poweroff_handler_simple(mtx1_power_off, 0);
 	_machine_halt = mtx1_power_off;
 	_machine_restart = mtx1_reset;
 
diff --git a/arch/mips/alchemy/board-xxs1500.c b/arch/mips/alchemy/board-xxs1500.c
index 0fc53e0..aaa5f5f 100644
--- a/arch/mips/alchemy/board-xxs1500.c
+++ b/arch/mips/alchemy/board-xxs1500.c
@@ -79,7 +79,7 @@ void __init board_setup(void)
 {
 	u32 pin_func;
 
-	pm_power_off = xxs1500_power_off;
+	register_poweroff_handler_simple(xxs1500_power_off, 0);
 	_machine_halt = xxs1500_power_off;
 	_machine_restart = xxs1500_reset;
 
diff --git a/arch/mips/alchemy/devboards/platform.c b/arch/mips/alchemy/devboards/platform.c
index 8df86eb..1734f72 100644
--- a/arch/mips/alchemy/devboards/platform.c
+++ b/arch/mips/alchemy/devboards/platform.c
@@ -6,6 +6,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/physmap.h>
+#include <linux/notifier.h>
 #include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <linux/pm.h>
@@ -61,10 +62,22 @@ static void db1x_reset(char *c)
 	bcsr_write(BCSR_SYSTEM, 0);
 }
 
+static int db1x_power_off_notify(struct notifier *this,
+				 unsigned long unused1, void *unused2)
+{
+	db1x_power_off();
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block db1x_poweroff_nb = {
+	.notifier_call = db1x_power_off_notify,
+	.priority = 64,
+}
+
 static int __init db1x_late_setup(void)
 {
-	if (!pm_power_off)
-		pm_power_off = db1x_power_off;
+	if (register_poweroff_handler(&db1x_poweroff_nb))
+		pr_err("dbx1: Failed to register poweroff handler\n");
 	if (!_machine_halt)
 		_machine_halt = db1x_power_off;
 	if (!_machine_restart)
diff --git a/arch/mips/ar7/setup.c b/arch/mips/ar7/setup.c
index 820b7a3..464067e 100644
--- a/arch/mips/ar7/setup.c
+++ b/arch/mips/ar7/setup.c
@@ -91,7 +91,7 @@ void __init plat_mem_setup(void)
 
 	_machine_restart = ar7_machine_restart;
 	_machine_halt = ar7_machine_halt;
-	pm_power_off = ar7_machine_power_off;
+	register_poweroff_handler_simple(ar7_machine_power_off, 128);
 
 	io_base = (unsigned long)ioremap(AR7_REGS_BASE, 0x10000);
 	if (!io_base)
diff --git a/arch/mips/ath79/setup.c b/arch/mips/ath79/setup.c
index 64807a4..ce9754e 100644
--- a/arch/mips/ath79/setup.c
+++ b/arch/mips/ath79/setup.c
@@ -203,7 +203,7 @@ void __init plat_mem_setup(void)
 
 	_machine_restart = ath79_restart;
 	_machine_halt = ath79_halt;
-	pm_power_off = ath79_halt;
+	register_poweroff_handler_simple(ath79_halt, 0);
 }
 
 void __init plat_time_init(void)
diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
index ad439c2..d0841f6 100644
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -242,7 +242,7 @@ void __init plat_mem_setup(void)
 
 	_machine_restart = bcm47xx_machine_restart;
 	_machine_halt = bcm47xx_machine_halt;
-	pm_power_off = bcm47xx_machine_halt;
+	register_poweroff_handler_simple(bcm47xx_machine_halt, 0);
 	bcm47xx_board_detect();
 	mips_set_machine_name(bcm47xx_board_get_name());
 }
diff --git a/arch/mips/bcm63xx/setup.c b/arch/mips/bcm63xx/setup.c
index 6660c7d..80a5893 100644
--- a/arch/mips/bcm63xx/setup.c
+++ b/arch/mips/bcm63xx/setup.c
@@ -149,7 +149,7 @@ void __init plat_mem_setup(void)
 
 	_machine_halt = bcm63xx_machine_halt;
 	_machine_restart = __bcm63xx_machine_reboot;
-	pm_power_off = bcm63xx_machine_halt;
+	register_poweroff_handler_simple(bcm63xx_machine_halt, 0);
 
 	set_io_port_base(0);
 	ioport_resource.start = 0;
diff --git a/arch/mips/cobalt/setup.c b/arch/mips/cobalt/setup.c
index 9a8c2fe..146406f 100644
--- a/arch/mips/cobalt/setup.c
+++ b/arch/mips/cobalt/setup.c
@@ -78,7 +78,7 @@ void __init plat_mem_setup(void)
 
 	_machine_restart = cobalt_machine_restart;
 	_machine_halt = cobalt_machine_halt;
-	pm_power_off = cobalt_machine_halt;
+	register_poweroff_handler_simple(cobalt_machine_halt, 0);
 
 	set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE));
 
diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c
index 41bbffd..8aea997 100644
--- a/arch/mips/dec/setup.c
+++ b/arch/mips/dec/setup.c
@@ -158,7 +158,7 @@ void __init plat_mem_setup(void)
 
 	_machine_restart = dec_machine_restart;
 	_machine_halt = dec_machine_halt;
-	pm_power_off = dec_machine_power_off;
+	register_poweroff_handler_simple(dec_machine_power_off, 128);
 
 	ioport_resource.start = ~0UL;
 	ioport_resource.end = 0UL;
diff --git a/arch/mips/emma/markeins/setup.c b/arch/mips/emma/markeins/setup.c
index 9100122..e2ec2e5 100644
--- a/arch/mips/emma/markeins/setup.c
+++ b/arch/mips/emma/markeins/setup.c
@@ -103,7 +103,7 @@ void __init plat_mem_setup(void)
 
 	_machine_restart = markeins_machine_restart;
 	_machine_halt = markeins_machine_halt;
-	pm_power_off = markeins_machine_power_off;
+	register_poweroff_handler_simple(markeins_machine_power_off, 0);
 
 	/* setup resource limits */
 	ioport_resource.start = EMMA2RH_PCI_IO_BASE;
diff --git a/arch/mips/jz4740/reset.c b/arch/mips/jz4740/reset.c
index b6c6343..3659e62 100644
--- a/arch/mips/jz4740/reset.c
+++ b/arch/mips/jz4740/reset.c
@@ -114,5 +114,5 @@ void jz4740_reset_init(void)
 {
 	_machine_restart = jz4740_restart;
 	_machine_halt = jz4740_halt;
-	pm_power_off = jz4740_power_off;
+	register_poweroff_handler_simple(jz4740_power_off, 128);
 }
diff --git a/arch/mips/lantiq/falcon/reset.c b/arch/mips/lantiq/falcon/reset.c
index 5682482..efd4ee2 100644
--- a/arch/mips/lantiq/falcon/reset.c
+++ b/arch/mips/lantiq/falcon/reset.c
@@ -83,7 +83,7 @@ static int __init mips_reboot_setup(void)
 {
 	_machine_restart = machine_restart;
 	_machine_halt = machine_halt;
-	pm_power_off = machine_power_off;
+	register_poweroff_handler_simple(machine_power_off, 0);
 	return 0;
 }
 
diff --git a/arch/mips/lantiq/xway/reset.c b/arch/mips/lantiq/xway/reset.c
index 1fa0f17..b698032 100644
--- a/arch/mips/lantiq/xway/reset.c
+++ b/arch/mips/lantiq/xway/reset.c
@@ -157,7 +157,7 @@ static int __init mips_reboot_setup(void)
 
 	_machine_restart = ltq_machine_restart;
 	_machine_halt = ltq_machine_halt;
-	pm_power_off = ltq_machine_power_off;
+	register_poweroff_handler_simple(ltq_machine_power_off, 0);
 
 	return 0;
 }
diff --git a/arch/mips/lasat/reset.c b/arch/mips/lasat/reset.c
index e21f0b9..9a07a88 100644
--- a/arch/mips/lasat/reset.c
+++ b/arch/mips/lasat/reset.c
@@ -56,5 +56,5 @@ void lasat_reboot_setup(void)
 {
 	_machine_restart = lasat_machine_restart;
 	_machine_halt = lasat_machine_halt;
-	pm_power_off = lasat_machine_halt;
+	register_poweroff_handler_simple(lasat_machine_halt, 0);
 }
diff --git a/arch/mips/loongson/common/reset.c b/arch/mips/loongson/common/reset.c
index a60715e..e251519 100644
--- a/arch/mips/loongson/common/reset.c
+++ b/arch/mips/loongson/common/reset.c
@@ -84,7 +84,7 @@ static int __init mips_reboot_setup(void)
 {
 	_machine_restart = loongson_restart;
 	_machine_halt = loongson_halt;
-	pm_power_off = loongson_poweroff;
+	register_poweroff_handler_simple(loongson_poweroff, 128);
 
 	return 0;
 }
diff --git a/arch/mips/loongson1/common/reset.c b/arch/mips/loongson1/common/reset.c
index 547f34b..fbb563a 100644
--- a/arch/mips/loongson1/common/reset.c
+++ b/arch/mips/loongson1/common/reset.c
@@ -38,7 +38,7 @@ static int __init ls1x_reboot_setup(void)
 {
 	_machine_restart = ls1x_restart;
 	_machine_halt = ls1x_halt;
-	pm_power_off = ls1x_power_off;
+	register_poweroff_handler_simple(ls1x_power_off, 0);
 
 	return 0;
 }
diff --git a/arch/mips/mti-malta/malta-reset.c b/arch/mips/mti-malta/malta-reset.c
index 2fd2cc2..632ce7c 100644
--- a/arch/mips/mti-malta/malta-reset.c
+++ b/arch/mips/mti-malta/malta-reset.c
@@ -40,7 +40,7 @@ static int __init mips_reboot_setup(void)
 {
 	_machine_restart = mips_machine_restart;
 	_machine_halt = mips_machine_halt;
-	pm_power_off = mips_machine_power_off;
+	register_poweroff_handler_simple(mips_machine_power_off, 128);
 
 	return 0;
 }
diff --git a/arch/mips/mti-sead3/sead3-reset.c b/arch/mips/mti-sead3/sead3-reset.c
index e6fb244..d1df04f 100644
--- a/arch/mips/mti-sead3/sead3-reset.c
+++ b/arch/mips/mti-sead3/sead3-reset.c
@@ -33,7 +33,7 @@ static int __init mips_reboot_setup(void)
 {
 	_machine_restart = mips_machine_restart;
 	_machine_halt = mips_machine_halt;
-	pm_power_off = mips_machine_halt;
+	register_poweroff_handler_simple(mips_machine_halt, 0);
 
 	return 0;
 }
diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c
index 4fdd9fd..4982302 100644
--- a/arch/mips/netlogic/xlp/setup.c
+++ b/arch/mips/netlogic/xlp/setup.c
@@ -106,7 +106,7 @@ void __init plat_mem_setup(void)
 #endif
 	_machine_restart = (void (*)(char *))nlm_linux_exit;
 	_machine_halt	= nlm_linux_exit;
-	pm_power_off	= nlm_linux_exit;
+	register_poweroff_handler_simple(nlm_linux_exit, 0);
 
 	/* memory and bootargs from DT */
 	xlp_early_init_devtree();
diff --git a/arch/mips/netlogic/xlr/setup.c b/arch/mips/netlogic/xlr/setup.c
index d118b9a..5149dd4 100644
--- a/arch/mips/netlogic/xlr/setup.c
+++ b/arch/mips/netlogic/xlr/setup.c
@@ -75,7 +75,7 @@ void __init plat_mem_setup(void)
 {
 	_machine_restart = (void (*)(char *))nlm_linux_exit;
 	_machine_halt	= nlm_linux_exit;
-	pm_power_off	= nlm_linux_exit;
+	register_poweroff_handler_simple(nlm_linux_exit, 0);
 }
 
 const char *get_system_type(void)
diff --git a/arch/mips/pmcs-msp71xx/msp_setup.c b/arch/mips/pmcs-msp71xx/msp_setup.c
index 4f925e0..67699e30 100644
--- a/arch/mips/pmcs-msp71xx/msp_setup.c
+++ b/arch/mips/pmcs-msp71xx/msp_setup.c
@@ -144,7 +144,7 @@ void __init plat_mem_setup(void)
 {
 	_machine_restart = msp_restart;
 	_machine_halt = msp_halt;
-	pm_power_off = msp_power_off;
+	register_poweroff_handler_simple(msp_power_off, 0);
 }
 
 void __init prom_init(void)
diff --git a/arch/mips/pnx833x/common/setup.c b/arch/mips/pnx833x/common/setup.c
index 99b4d94..7c12665 100644
--- a/arch/mips/pnx833x/common/setup.c
+++ b/arch/mips/pnx833x/common/setup.c
@@ -51,7 +51,7 @@ int __init plat_mem_setup(void)
 
 	_machine_restart = pnx833x_machine_restart;
 	_machine_halt = pnx833x_machine_halt;
-	pm_power_off = pnx833x_machine_power_off;
+	register_poweroff_handler_simple(pnx833x_machine_power_off, 128);
 
 	/* IO/MEM resources. */
 	set_io_port_base(KSEG1);
diff --git a/arch/mips/ralink/reset.c b/arch/mips/ralink/reset.c
index 55c7ec5..e640e9e 100644
--- a/arch/mips/ralink/reset.c
+++ b/arch/mips/ralink/reset.c
@@ -98,7 +98,7 @@ static int __init mips_reboot_setup(void)
 {
 	_machine_restart = ralink_restart;
 	_machine_halt = ralink_halt;
-	pm_power_off = ralink_halt;
+	register_poweroff_handler_simple(ralink_halt, 0);
 
 	return 0;
 }
diff --git a/arch/mips/rb532/setup.c b/arch/mips/rb532/setup.c
index d0c64e7..c71a623 100644
--- a/arch/mips/rb532/setup.c
+++ b/arch/mips/rb532/setup.c
@@ -44,7 +44,7 @@ void __init plat_mem_setup(void)
 
 	_machine_restart = rb_machine_restart;
 	_machine_halt = rb_machine_halt;
-	pm_power_off = rb_machine_halt;
+	register_poweroff_handler-simple(rb_machine_halt, 0);
 
 	set_io_port_base(KSEG1);
 
diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c
index 063c2dd..466e710 100644
--- a/arch/mips/sgi-ip22/ip22-reset.c
+++ b/arch/mips/sgi-ip22/ip22-reset.c
@@ -188,7 +188,7 @@ static int __init reboot_setup(void)
 
 	_machine_restart = sgi_machine_restart;
 	_machine_halt = sgi_machine_halt;
-	pm_power_off = sgi_machine_power_off;
+	register_poweroff_handler_simple(sgi_machine_power_off, 128);
 
 	res = request_irq(SGI_PANEL_IRQ, panel_int, 0, "Front Panel", NULL);
 	if (res) {
diff --git a/arch/mips/sgi-ip27/ip27-reset.c b/arch/mips/sgi-ip27/ip27-reset.c
index ac37e54..c26f04a 100644
--- a/arch/mips/sgi-ip27/ip27-reset.c
+++ b/arch/mips/sgi-ip27/ip27-reset.c
@@ -76,5 +76,5 @@ void ip27_reboot_setup(void)
 {
 	_machine_restart = ip27_machine_restart;
 	_machine_halt = ip27_machine_halt;
-	pm_power_off = ip27_machine_power_off;
+	register_poweroff_handler_simple(ip27_machine_power_off, 0);
 }
diff --git a/arch/mips/sgi-ip32/ip32-reset.c b/arch/mips/sgi-ip32/ip32-reset.c
index 1f823da..88d8692 100644
--- a/arch/mips/sgi-ip32/ip32-reset.c
+++ b/arch/mips/sgi-ip32/ip32-reset.c
@@ -189,7 +189,7 @@ static __init int ip32_reboot_setup(void)
 
 	_machine_restart = ip32_machine_restart;
 	_machine_halt = ip32_machine_halt;
-	pm_power_off = ip32_machine_power_off;
+	register_poweroff_handler_simple(ip32_machine_power_off, 0);
 
 	init_timer(&blink_timer);
 	blink_timer.function = blink_timeout;
diff --git a/arch/mips/sibyte/common/cfe.c b/arch/mips/sibyte/common/cfe.c
index 588e180..069de27 100644
--- a/arch/mips/sibyte/common/cfe.c
+++ b/arch/mips/sibyte/common/cfe.c
@@ -245,7 +245,7 @@ void __init prom_init(void)
 
 	_machine_restart   = cfe_linux_restart;
 	_machine_halt	   = cfe_linux_halt;
-	pm_power_off = cfe_linux_halt;
+	register_poweroff_handler_simple(cfe_linux_halt, 0);
 
 	/*
 	 * Check if a loader was used; if NOT, the 4 arguments are
diff --git a/arch/mips/sni/setup.c b/arch/mips/sni/setup.c
index efad85c..5242bd9 100644
--- a/arch/mips/sni/setup.c
+++ b/arch/mips/sni/setup.c
@@ -225,7 +225,7 @@ void __init plat_mem_setup(void)
 	}
 
 	_machine_restart = sni_machine_restart;
-	pm_power_off = sni_machine_power_off;
+	register_poweroff_handler_simple(sni_machine_power_off, 128);
 
 	sni_display_setup();
 	sni_console_setup();
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 9ff200a..c429a4f 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -555,7 +555,7 @@ void __init plat_mem_setup(void)
 	/* fallback restart/halt routines */
 	_machine_restart = (void (*)(char *))txx9_machine_halt;
 	_machine_halt = txx9_machine_halt;
-	pm_power_off = txx9_machine_halt;
+	register_poweroff_handler_simple(txx9_machine_halt, 0);
 
 #ifdef CONFIG_PCI
 	pcibios_plat_setup = txx9_pcibios_setup;
diff --git a/arch/mips/vr41xx/common/pmu.c b/arch/mips/vr41xx/common/pmu.c
index d7f7558..4d947ab 100644
--- a/arch/mips/vr41xx/common/pmu.c
+++ b/arch/mips/vr41xx/common/pmu.c
@@ -127,7 +127,7 @@ static int __init vr41xx_pmu_init(void)
 	cpu_wait = vr41xx_cpu_wait;
 	_machine_restart = vr41xx_restart;
 	_machine_halt = vr41xx_halt;
-	pm_power_off = vr41xx_halt;
+	register_poweroff_handler_simple(vr41xx_halt, 0);
 
 	return 0;
 }
-- 
1.9.1

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From: Guenter Roeck <linux@roeck-us.net>
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Subject: [PATCH 00/44] kernel: Add support for poweroff handler call chain
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/44186>

Various drivers implement architecture and/or device specific means to
remove power from the system.  For the most part, those drivers set the
global variable pm_power_off to point to a function within the driver.

This mechanism has a number of drawbacks.  Typically only one means
to remove power is supported (at least if pm_power_off is used).
At least in theory there can be multiple means to remove power, some of
which may be less desirable.  For example, one mechanism might power off the
entire system through an I/O port or gpio pin, while another might power off
a board by disabling its power controller. Other mechanisms may really just
execute a restart sequence or drop into the ROM monitor, or put the CPU into
sleep mode.  Using pm_power_off can also be racy if the function pointer is
set from a driver built as module, as the driver may be in the process of
being unloaded when pm_power_off is called.  If there are multiple poweroff
handlers in the system, removing a module with such a handler may
inadvertently reset the pointer to pm_power_off to NULL, leaving the system
with no means to remove power.

Introduce a system poweroff handler call chain to solve the described
problems.  This call chain is expected to be executed from the architecture
specific machine_power_off() function.  Drivers providing system poweroff
functionality are expected to register with this call chain.  By using the
priority field in the notifier block, callers can control poweroff handler
execution sequence and thus ensure that the poweroff handler with the
optimal capabilities to remove power for a given system is called first.

Patch 01/44 implements the poweroff handler API.

Patches 02/44 to 04/44 are cleanup patches to prepare for the move of
pm_power_off to a common location.

Patches 05/44 to 07/44 remove references to pm_power_off from devicetree
bindings descriptions.

Patch 08/44 moves the pm_power_off variable from architecture code to
kernel/reboot.c. 

Patches 09/44 to 30/44 convert various drivers to register with the kernel
poweroff handler instead of setting pm_power_off directly.

Patches 31/44 to 42/44 do the same for architecture code.

Patch 43/44 replaces a direct call to pm_power_off from a hwmon driver
with a call to kernel_power_off. This patch is part of the series for
completeness, but will find its way upstream through the hwmon subsystem.

Patch 44/44 removes pm_power_off.

For the most part, the individual patches include explanations why specific
priorities were chosen, at least if the selected priority is not the default
priority. Subsystem and architecture maintainers are encouraged to have a look
at the selected priorities and suggest improvements.

I ran the final code through my normal build and qemu tests. Results
are available at http://server.roeck-us.net:8010/builders in the
'poweroff-handler' column. In addition I build several additional
configurations for various architectures.

The series is available in branch poweroff-handler of my repository at
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git.
It is based on 3.17, with the pending restart handler patches applied.

I got a number of Acks from architecture maintainers as response to the RFC.
I did not add those since the architecture code changed, and I did not think
it was appropriate to retain the Acks.

A note on timing: My original plan was to submit this series after 3.18-rc1
was released.  However, since the commit window will remain open for three
weeks, and the series is, for all practical purposes, ready for review,
I decided to submit it now.  I plan to rebase it to 3.18-rc1 once available
and send another version, hopefully including valuable feedback.

Important changes since RFC:
- Move API to new file kernel/power/poweroff_handler.c.
- Move pm_power_off pointer to kernel/power/poweroff_handler.c. Call
  pm_power_off from do_kernel_poweroff, and only call do_kernel_poweroff
  from architecture code instead of calling both pm_power_off and
  do_kernel_poweroff.
- Provide additional API function register_poweroff_handler_simple
  to simplify conversion of architecture code.
- Provide additional API function have_kernel_poweroff to check if
  a poweroff handler was installed.
- Convert all drivers and architecture code to use the new API.
- Remove pm_power_off as last patch of the series.

Cc: Alexander Graf <agraf@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chen Liqin <liqin.linux@gmail.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Corey Minyard <minyard@acm.org>
Cc: David Howells <dhowells@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Jean Delvare <jdelvare@suse.de>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Joshua Thompson <funaho@jurai.org>
Cc: Julian Andres Klode <jak@jak-linux.org>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Len Brown <len.brown@intel.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Marc Dietrich <marvin24@gmx.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matt Fleming <matt.fleming@intel.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Romain Perier <romain.perier@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will.deacon@arm.com>

----------------------------------------------------------------
Guenter Roeck (44):
      kernel: Add support for poweroff handler call chain
      memory: emif: Use API function to determine poweroff capability
      hibernate: Call have_kernel_poweroff instead of checking pm_power_off
      m68k: Replace mach_power_off with pm_power_off
      mfd: as3722: Drop reference to pm_power_off from devicetree bindings
      gpio-poweroff: Drop reference to pm_power_off from devicetree bindings
      qnap-poweroff: Drop reference to pm_power_off from devicetree bindings
      kernel: Move pm_power_off to common code
      mfd: palmas: Register with kernel poweroff handler
      mfd: axp20x: Register with kernel poweroff handler
      mfd: retu: Register with kernel poweroff handler
      mfd: ab8500-sysctrl: Register with kernel poweroff handler
      mfd: max8907: Register with kernel poweroff handler
      mfd: tps80031: Register with kernel poweroff handler
      mfd: dm355evm_msp: Register with kernel poweroff handler
      mfd: tps6586x: Register with kernel poweroff handler
      mfd: tps65910: Register with kernel poweroff handler
      mfd: twl4030-power: Register with kernel poweroff handler
      ipmi: Register with kernel poweroff handler
      power/reset: restart-poweroff: Register with kernel poweroff handler
      power/reset: gpio-poweroff: Register with kernel poweroff handler
      power/reset: as3722-poweroff: Register with kernel poweroff handler
      power/reset: qnap-poweroff: Register with kernel poweroff handler
      power/reset: msm-powroff: Register with kernel poweroff handler
      power/reset: vexpress-poweroff: Register with kernel poweroff handler
      x86: iris: Register with kernel poweroff handler
      x86: apm: Register with kernel poweroff handler
      x86: olpc: Register xo1 poweroff handler with kernel poweroff handler
      staging: nvec: Register with kernel poweroff handler
      acpi: Register poweroff handler with kernel poweroff handler
      arm: Register with kernel poweroff handler
      arm64: psci: Register with kernel poweroff handler
      avr32: atngw100: Register with kernel poweroff handler
      ia64: Register with kernel poweroff handler
      m68k: Register with kernel poweroff handler
      mips: Register with kernel poweroff handler
      sh: Register with kernel poweroff handler
      x86: lguest: Register with kernel poweroff handler
      x86: ce4100: Register with kernel poweroff handler
      x86: intel-mid: Drop registration of dummy poweroff handlers
      x86: pmc_atom: Register poweroff handler with kernel poweroff handler
      efi: Register poweroff handler with kernel poweroff handler
      hwmon: (ab8500) Call kernel_power_off instead of pm_power_off
      kernel: Remove pm_power_off

 .../devicetree/bindings/gpio/gpio-poweroff.txt     |  10 +-
 Documentation/devicetree/bindings/mfd/as3722.txt   |   3 +-
 .../bindings/power_supply/qnap-poweroff.txt        |   4 +-
 arch/alpha/kernel/process.c                        |   9 +-
 arch/arc/kernel/reset.c                            |   5 +-
 arch/arm/kernel/process.c                          |   5 +-
 arch/arm/kernel/psci.c                             |   2 +-
 arch/arm/mach-at91/board-gsia18s.c                 |   2 +-
 arch/arm/mach-at91/setup.c                         |   4 +-
 arch/arm/mach-bcm/board_bcm2835.c                  |   2 +-
 arch/arm/mach-cns3xxx/cns3420vb.c                  |   2 +-
 arch/arm/mach-cns3xxx/core.c                       |   2 +-
 arch/arm/mach-highbank/highbank.c                  |   2 +-
 arch/arm/mach-imx/mach-mx31moboard.c               |   2 +-
 arch/arm/mach-iop32x/em7210.c                      |   2 +-
 arch/arm/mach-iop32x/glantank.c                    |   2 +-
 arch/arm/mach-iop32x/iq31244.c                     |   2 +-
 arch/arm/mach-iop32x/n2100.c                       |   2 +-
 arch/arm/mach-ixp4xx/dsmg600-setup.c               |   2 +-
 arch/arm/mach-ixp4xx/nas100d-setup.c               |   2 +-
 arch/arm/mach-ixp4xx/nslu2-setup.c                 |   2 +-
 arch/arm/mach-omap2/board-omap3touchbook.c         |   2 +-
 arch/arm/mach-orion5x/board-mss2.c                 |   2 +-
 arch/arm/mach-orion5x/dns323-setup.c               |   6 +-
 arch/arm/mach-orion5x/kurobox_pro-setup.c          |   2 +-
 arch/arm/mach-orion5x/ls-chl-setup.c               |   2 +-
 arch/arm/mach-orion5x/ls_hgl-setup.c               |   2 +-
 arch/arm/mach-orion5x/lsmini-setup.c               |   2 +-
 arch/arm/mach-orion5x/mv2120-setup.c               |   2 +-
 arch/arm/mach-orion5x/net2big-setup.c              |   2 +-
 arch/arm/mach-orion5x/terastation_pro2-setup.c     |   2 +-
 arch/arm/mach-orion5x/ts209-setup.c                |   2 +-
 arch/arm/mach-orion5x/ts409-setup.c                |   2 +-
 arch/arm/mach-pxa/corgi.c                          |   2 +-
 arch/arm/mach-pxa/mioa701.c                        |   2 +-
 arch/arm/mach-pxa/poodle.c                         |   2 +-
 arch/arm/mach-pxa/spitz.c                          |   2 +-
 arch/arm/mach-pxa/tosa.c                           |   2 +-
 arch/arm/mach-pxa/viper.c                          |   2 +-
 arch/arm/mach-pxa/z2.c                             |   6 +-
 arch/arm/mach-pxa/zeus.c                           |   6 +-
 arch/arm/mach-s3c24xx/mach-gta02.c                 |   2 +-
 arch/arm/mach-s3c24xx/mach-jive.c                  |   2 +-
 arch/arm/mach-s3c24xx/mach-vr1000.c                |   2 +-
 arch/arm/mach-s3c64xx/mach-smartq.c                |   2 +-
 arch/arm/mach-sa1100/generic.c                     |   2 +-
 arch/arm/mach-sa1100/simpad.c                      |   2 +-
 arch/arm/mach-u300/regulator.c                     |   2 +-
 arch/arm/mach-vt8500/vt8500.c                      |   2 +-
 arch/arm/xen/enlighten.c                           |   2 +-
 arch/arm64/kernel/process.c                        |   5 +-
 arch/arm64/kernel/psci.c                           |   2 +-
 arch/avr32/boards/atngw100/mrmt.c                  |   2 +-
 arch/avr32/kernel/process.c                        |   6 +-
 arch/blackfin/kernel/process.c                     |   3 -
 arch/blackfin/kernel/reboot.c                      |   2 +
 arch/c6x/kernel/process.c                          |   9 +-
 arch/cris/kernel/process.c                         |   4 +-
 arch/frv/kernel/process.c                          |   5 +-
 arch/hexagon/kernel/reset.c                        |   5 +-
 arch/ia64/kernel/process.c                         |   5 +-
 arch/ia64/sn/kernel/setup.c                        |   4 +-
 arch/m32r/kernel/process.c                         |   8 +-
 arch/m68k/emu/natfeat.c                            |   3 +-
 arch/m68k/include/asm/machdep.h                    |   1 -
 arch/m68k/kernel/process.c                         |   7 +-
 arch/m68k/kernel/setup_mm.c                        |   1 -
 arch/m68k/kernel/setup_no.c                        |   1 -
 arch/m68k/mac/config.c                             |   3 +-
 arch/metag/kernel/process.c                        |   6 +-
 arch/microblaze/kernel/process.c                   |   3 -
 arch/microblaze/kernel/reset.c                     |   1 +
 arch/mips/alchemy/board-gpr.c                      |   2 +-
 arch/mips/alchemy/board-mtx1.c                     |   2 +-
 arch/mips/alchemy/board-xxs1500.c                  |   2 +-
 arch/mips/alchemy/devboards/platform.c             |  17 +-
 arch/mips/ar7/setup.c                              |   2 +-
 arch/mips/ath79/setup.c                            |   2 +-
 arch/mips/bcm47xx/setup.c                          |   2 +-
 arch/mips/bcm63xx/setup.c                          |   2 +-
 arch/mips/cobalt/setup.c                           |   2 +-
 arch/mips/dec/setup.c                              |   2 +-
 arch/mips/emma/markeins/setup.c                    |   2 +-
 arch/mips/jz4740/reset.c                           |   2 +-
 arch/mips/kernel/reset.c                           |   6 +-
 arch/mips/lantiq/falcon/reset.c                    |   2 +-
 arch/mips/lantiq/xway/reset.c                      |   2 +-
 arch/mips/lasat/reset.c                            |   2 +-
 arch/mips/loongson/common/reset.c                  |   2 +-
 arch/mips/loongson1/common/reset.c                 |   2 +-
 arch/mips/mti-malta/malta-reset.c                  |   2 +-
 arch/mips/mti-sead3/sead3-reset.c                  |   2 +-
 arch/mips/netlogic/xlp/setup.c                     |   2 +-
 arch/mips/netlogic/xlr/setup.c                     |   2 +-
 arch/mips/pmcs-msp71xx/msp_setup.c                 |   2 +-
 arch/mips/pnx833x/common/setup.c                   |   2 +-
 arch/mips/ralink/reset.c                           |   2 +-
 arch/mips/rb532/setup.c                            |   2 +-
 arch/mips/sgi-ip22/ip22-reset.c                    |   2 +-
 arch/mips/sgi-ip27/ip27-reset.c                    |   2 +-
 arch/mips/sgi-ip32/ip32-reset.c                    |   2 +-
 arch/mips/sibyte/common/cfe.c                      |   2 +-
 arch/mips/sni/setup.c                              |   2 +-
 arch/mips/txx9/generic/setup.c                     |   2 +-
 arch/mips/vr41xx/common/pmu.c                      |   2 +-
 arch/mn10300/kernel/process.c                      |   8 +-
 arch/openrisc/kernel/process.c                     |   8 +-
 arch/parisc/kernel/process.c                       |   8 +-
 arch/powerpc/kernel/setup-common.c                 |   6 +-
 arch/s390/kernel/setup.c                           |   8 +-
 arch/score/kernel/process.c                        |   8 +-
 arch/sh/boards/board-sh7785lcr.c                   |   2 +-
 arch/sh/boards/board-urquell.c                     |   2 +-
 arch/sh/boards/mach-highlander/setup.c             |   2 +-
 arch/sh/boards/mach-landisk/setup.c                |   2 +-
 arch/sh/boards/mach-r2d/setup.c                    |   2 +-
 arch/sh/boards/mach-sdk7786/setup.c                |   2 +-
 arch/sh/kernel/reboot.c                            |   6 +-
 arch/sparc/kernel/process_32.c                     |  10 +-
 arch/sparc/kernel/reboot.c                         |   8 +-
 arch/tile/kernel/reboot.c                          |   7 +-
 arch/um/kernel/reboot.c                            |   2 -
 arch/unicore32/kernel/process.c                    |   9 +-
 arch/x86/kernel/apm_32.c                           |  20 ++-
 arch/x86/kernel/pmc_atom.c                         |  20 ++-
 arch/x86/kernel/reboot.c                           |  11 +-
 arch/x86/lguest/boot.c                             |   2 +-
 arch/x86/platform/ce4100/ce4100.c                  |   2 +-
 arch/x86/platform/intel-mid/intel-mid.c            |   5 -
 arch/x86/platform/intel-mid/mfld.c                 |   5 -
 arch/x86/platform/iris/iris.c                      |  25 ++-
 arch/x86/platform/olpc/olpc-xo1-pm.c               |  20 ++-
 arch/x86/xen/enlighten.c                           |   3 +-
 arch/xtensa/kernel/process.c                       |   4 -
 drivers/acpi/sleep.c                               |  15 +-
 drivers/char/ipmi/ipmi_poweroff.c                  |  30 ++--
 drivers/firmware/efi/reboot.c                      |  23 ++-
 drivers/hwmon/ab8500.c                             |   5 +-
 drivers/memory/emif.c                              |   4 +-
 drivers/mfd/ab8500-sysctrl.c                       |  26 ++--
 drivers/mfd/axp20x.c                               |  30 ++--
 drivers/mfd/dm355evm_msp.c                         |  18 ++-
 drivers/mfd/max8907.c                              |  24 ++-
 drivers/mfd/palmas.c                               |  30 ++--
 drivers/mfd/retu-mfd.c                             |  33 ++--
 drivers/mfd/tps6586x.c                             |  31 +++-
 drivers/mfd/tps65910.c                             |  27 ++--
 drivers/mfd/tps80031.c                             |  30 ++--
 drivers/mfd/twl4030-power.c                        |  25 ++-
 drivers/parisc/power.c                             |   3 +-
 drivers/power/reset/as3722-poweroff.c              |  36 +++--
 drivers/power/reset/gpio-poweroff.c                |  36 ++---
 drivers/power/reset/msm-poweroff.c                 |  13 +-
 drivers/power/reset/qnap-poweroff.c                |  28 ++--
 drivers/power/reset/restart-poweroff.c             |  25 ++-
 drivers/power/reset/vexpress-poweroff.c            |  19 ++-
 drivers/staging/nvec/nvec.c                        |  24 +--
 drivers/staging/nvec/nvec.h                        |   2 +
 include/linux/i2c/twl.h                            |   1 -
 include/linux/mfd/axp20x.h                         |   1 +
 include/linux/mfd/max8907.h                        |   2 +
 include/linux/mfd/palmas.h                         |   3 +
 include/linux/mfd/tps65910.h                       |   3 +
 include/linux/mfd/tps80031.h                       |   2 +
 include/linux/pm.h                                 |  14 +-
 kernel/power/Makefile                              |   1 +
 kernel/power/hibernate.c                           |   2 +-
 kernel/power/poweroff_handler.c                    | 173 +++++++++++++++++++++
 kernel/reboot.c                                    |   4 +-
 169 files changed, 794 insertions(+), 475 deletions(-)
 create mode 100644 kernel/power/poweroff_handler.c



From - Thu Nov 08 21:10:47 2018
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From: =?windows-1252?Q?Philippe_R=E9tornaz?= 
	<philippe.retornaz@gmail.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.kernel.efi,gmane.linux.ports.ia64,gmane.linux.kernel.virtualization.lguest,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.acpi.devel,gmane.linux.drivers.devicetree,gmane.linux.uml.devel,gmane.linux.power-management.general,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 01/44] kernel: Add support for poweroff handler call chain
Date: Tue, 07 Oct 2014 09:46:59 +0200
Lines: 36
Approved: news@gmane.org
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To: Guenter Roeck <linux@roeck-us.net>, linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/6251>

Hello

This seems exactly what I would need on the mc13783 to handle cleanly 
the poweroff,
but after reading this patchset I have the following question:

[...]

> +/*
> + *	Notifier list for kernel code which wants to be called
> + *	to power off the system.
> + */
> +static ATOMIC_NOTIFIER_HEAD(poweroff_handler_list);

[...]

> +void do_kernel_poweroff(void)
> +{
> +	atomic_notifier_call_chain(&poweroff_handler_list, 0, NULL);
> +}
> +

It seems that the poweroff callback needs to be atomic as per
_atomic_notifier_call_chain documentation:

	"Calls each function in a notifier chain in turn.  The functions
	 run in an atomic context"

But this is a problem for many MFD (mc13783, twl4030 etc ...) which are
accessible on only a blocking bus (SPI, I2C).

What I am missing here ?

Thanks,

Philippe

From - Thu Nov 08 21:10:47 2018
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From: Lee Jones <lee.jones@linaro.org>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: Re: [PATCH 18/44] mfd: twl4030-power: Register with kernel poweroff
 handler
Date: Tue, 7 Oct 2014 08:52:38 +0100
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To: Guenter Roeck <linux@roeck-us.net>
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On Mon, 06 Oct 2014, Guenter Roeck wrote:

> Register with kernel poweroff handler instead of setting pm_power_off
> directly. Register with a low priority value of 64 to reflect that
> the original code only sets pm_power_off if it was not already set.
>=20
> Make twl4030_power_off static as it is only called from the twl4030-p=
ower
> driver.
>=20
> Cc: Samuel Ortiz <sameo@linux.intel.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  drivers/mfd/twl4030-power.c | 25 +++++++++++++++++++++----
>  include/linux/i2c/twl.h     |  1 -
>  2 files changed, 21 insertions(+), 5 deletions(-)
>=20
> diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.=
c
> index 4d3ff37..bd6b830 100644
> --- a/drivers/mfd/twl4030-power.c
> +++ b/drivers/mfd/twl4030-power.c
> @@ -25,9 +25,10 @@
>   */
> =20
>  #include <linux/module.h>
> -#include <linux/pm.h>
> +#include <linux/notifier.h>
>  #include <linux/i2c/twl.h>
>  #include <linux/platform_device.h>
> +#include <linux/pm.h>
>  #include <linux/of.h>
>  #include <linux/of_device.h>
> =20
> @@ -611,7 +612,8 @@ twl4030_power_configure_resources(const struct tw=
l4030_power_data *pdata)
>   * After a successful execution, TWL shuts down the power to the SoC
>   * and all peripherals connected to it.
>   */
> -void twl4030_power_off(void)
> +static int twl4030_power_off(struct notifier_block *this, unsigned l=
ong unused1,
> +			     void *unused2)
>  {
>  	int err;
> =20
> @@ -619,8 +621,15 @@ void twl4030_power_off(void)
>  			       TWL4030_PM_MASTER_P1_SW_EVENTS);
>  	if (err)
>  		pr_err("TWL4030 Unable to power off\n");
> +
> +	return NOTIFY_DONE;
>  }
> =20
> +static struct notifier_block twl4030_poweroff_nb =3D {
> +	.notifier_call =3D twl4030_power_off,
> +	.priority =3D 64,

64 out of what?  How is this calculated?  Wouldn't it be better to
define these?

> +};
> +
>  static bool twl4030_power_use_poweroff(const struct twl4030_power_da=
ta *pdata,
>  					struct device_node *node)
>  {
> @@ -836,7 +845,7 @@ static int twl4030_power_probe(struct platform_de=
vice *pdev)
>  	}
> =20
>  	/* Board has to be wired properly to use this feature */
> -	if (twl4030_power_use_poweroff(pdata, node) && !pm_power_off) {
> +	if (twl4030_power_use_poweroff(pdata, node)) {
>  		/* Default for SEQ_OFFSYNC is set, lets ensure this */
>  		err =3D twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &val,
>  				      TWL4030_PM_MASTER_CFG_P123_TRANSITION);
> @@ -853,7 +862,13 @@ static int twl4030_power_probe(struct platform_d=
evice *pdev)
>  			}
>  		}
> =20
> -		pm_power_off =3D twl4030_power_off;
> +		err =3D register_poweroff_handler(&twl4030_poweroff_nb);
> +		if (err) {
> +			dev_err(&pdev->dev,
> +				"Failed to register poweroff handler\n");

If this is not fatal, you should issue a dev_warn() instead.

> +			/* Not a fatal error */
> +			err =3D 0;

How about using your own variable for this?  Then you don't have to
worry about resetting it.

> +		}
>  	}
> =20
>  relock:
> @@ -869,6 +884,8 @@ relock:
> =20
>  static int twl4030_power_remove(struct platform_device *pdev)
>  {
> +	unregister_poweroff_handler(&twl4030_poweroff_nb);

Perhaps a naive question, but is there any way you can do this using
devres (devm_* managed resources)?

>  	return 0;
>  }
> =20
> diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h
> index 8cfb50f..f8544f1 100644
> --- a/include/linux/i2c/twl.h
> +++ b/include/linux/i2c/twl.h
> @@ -680,7 +680,6 @@ struct twl4030_power_data {
>  };
> =20
>  extern int twl4030_remove_script(u8 flags);
> -extern void twl4030_power_off(void);
> =20
>  struct twl4030_codec_data {
>  	unsigned int digimic_delay; /* in ms */

--=20
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org =E2=94=82 Open source software for ARM SoCs
=46ollow Linaro: Facebook | Twitter | Blog
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Subject: Re: [PATCH 12/44] mfd: ab8500-sysctrl: Register with kernel poweroff
 handler
Date: Tue, 7 Oct 2014 09:00:48 +0100
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	Linus Walleij <lin
To: Guenter Roeck <linux@roeck-us.net>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/6114>

On Mon, 06 Oct 2014, Guenter Roeck wrote:

> Register with kernel poweroff handler instead of setting pm_power_off
> directly. Register with a low priority value of 64 to reflect that
> the original code only sets pm_power_off if it was not already set.
>=20
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Samuel Ortiz <sameo@linux.intel.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  drivers/mfd/ab8500-sysctrl.c | 26 +++++++++++++++-----------
>  1 file changed, 15 insertions(+), 11 deletions(-)
>=20
> diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctr=
l.c
> index 8e0dae5..677438f 100644
> --- a/drivers/mfd/ab8500-sysctrl.c
> +++ b/drivers/mfd/ab8500-sysctrl.c
> @@ -6,6 +6,7 @@

[...]

> +static int ab8500_power_off(struct notifier_block *this, unsigned lo=
ng unused1,
> +			    void *unused2)
>  {
>  	sigset_t old;
>  	sigset_t all;
> @@ -34,11 +36,6 @@ static void ab8500_power_off(void)
>  	struct power_supply *psy;
>  	int ret;
> =20
> -	if (sysctrl_dev =3D=3D NULL) {
> -		pr_err("%s: sysctrl not initialized\n", __func__);
> -		return;
> -	}

Can you explain the purpose of this change please?

>  	/*
>  	 * If we have a charger connected and we're powering off,
>  	 * reboot into charge-only mode.
> @@ -83,8 +80,15 @@ shutdown:
>  					 AB8500_STW4500CTRL1_SWRESET4500N);
>  		(void)sigprocmask(SIG_SETMASK, &old, NULL);
>  	}
> +
> +	return NOTIFY_DONE;
>  }

--=20
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org =E2=94=82 Open source software for ARM SoCs
=46ollow Linaro: Facebook | Twitter | Blog
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Subject: Re: [PATCH 31/44] arm: Register with kernel poweroff handler
Date: Tue, 7 Oct 2014 10:04:20 +0200
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To: Guenter Roeck <linux@roeck-us.net>, <linux-kernel@vger.kernel.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.acpi.devel/71302>

On 07/10/2014 07:28, Guenter Roeck :
> Register with kernel poweroff handler instead of setting pm_power_off
> directly. Always use register_poweroff_handler_simple as there is no
> indication that more than one poweroff handler is registered.
> 
> If the poweroff handler only resets the system or puts the CPU in sleep mode,
> select a priority of 0 to indicate that the poweroff handler is one of last
> resort. If the poweroff handler powers off the system, select a priority
> of 128.
> 
> Cc: Russell King <linux@arm.linux.org.uk>
> Cc: Andrew Victor <linux@maxim.org.za>
> Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> Cc: Stephen Warren <swarren@wwwdotorg.org>
> Cc: Christian Daudt <bcm@fixthebug.org>
> Cc: Matt Porter <mporter@linaro.org>
> Cc: Anton Vorontsov <anton@enomsg.org>
> Cc: Rob Herring <robh@kernel.org>
> Cc: Shawn Guo <shawn.guo@freescale.com>
> Cc: Sascha Hauer <kernel@pengutronix.de>
> Cc: Imre Kaloz <kaloz@openwrt.org>
> Cc: Krzysztof Halasa <khc@pm.waw.pl>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Jason Cooper <jason@lakedaemon.net>
> Cc: Andrew Lunn <andrew@lunn.ch>
> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
> Cc: Eric Miao <eric.y.miao@gmail.com>
> Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
> Cc: Robert Jarzmik <robert.jarzmik@free.fr>
> Cc: Marek Vasut <marek.vasut@gmail.com>
> Cc: Ben Dooks <ben-linux@fluff.org>
> Cc: Kukjin Kim <kgene.kim@samsung.com>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: Tony Prisk <linux@prisktech.co.nz>
> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  arch/arm/kernel/psci.c                         | 2 +-


>  arch/arm/mach-at91/board-gsia18s.c             | 2 +-
>  arch/arm/mach-at91/setup.c                     | 4 ++--

For the 2 files above: NAK just because:
for the first one -> this file will be removed during 3.19 dev cycle.
for the second one -> the poweroff handlers are removed during the 3.18
cycle and converted in the appropriate poweroff drivers (in
drivers/power/reset/at91-poweroff.c).

So, can you remove these changes from your patch?

Thanks for your work, bye.

>  arch/arm/mach-bcm/board_bcm2835.c              | 2 +-
>  arch/arm/mach-cns3xxx/cns3420vb.c              | 2 +-
>  arch/arm/mach-cns3xxx/core.c                   | 2 +-
>  arch/arm/mach-highbank/highbank.c              | 2 +-
>  arch/arm/mach-imx/mach-mx31moboard.c           | 2 +-
>  arch/arm/mach-iop32x/em7210.c                  | 2 +-
>  arch/arm/mach-iop32x/glantank.c                | 2 +-
>  arch/arm/mach-iop32x/iq31244.c                 | 2 +-
>  arch/arm/mach-iop32x/n2100.c                   | 2 +-
>  arch/arm/mach-ixp4xx/dsmg600-setup.c           | 2 +-
>  arch/arm/mach-ixp4xx/nas100d-setup.c           | 2 +-
>  arch/arm/mach-ixp4xx/nslu2-setup.c             | 2 +-
>  arch/arm/mach-omap2/board-omap3touchbook.c     | 2 +-
>  arch/arm/mach-orion5x/board-mss2.c             | 2 +-
>  arch/arm/mach-orion5x/dns323-setup.c           | 6 +++---
>  arch/arm/mach-orion5x/kurobox_pro-setup.c      | 2 +-
>  arch/arm/mach-orion5x/ls-chl-setup.c           | 2 +-
>  arch/arm/mach-orion5x/ls_hgl-setup.c           | 2 +-
>  arch/arm/mach-orion5x/lsmini-setup.c           | 2 +-
>  arch/arm/mach-orion5x/mv2120-setup.c           | 2 +-
>  arch/arm/mach-orion5x/net2big-setup.c          | 2 +-
>  arch/arm/mach-orion5x/terastation_pro2-setup.c | 2 +-
>  arch/arm/mach-orion5x/ts209-setup.c            | 2 +-
>  arch/arm/mach-orion5x/ts409-setup.c            | 2 +-
>  arch/arm/mach-pxa/corgi.c                      | 2 +-
>  arch/arm/mach-pxa/mioa701.c                    | 2 +-
>  arch/arm/mach-pxa/poodle.c                     | 2 +-
>  arch/arm/mach-pxa/spitz.c                      | 2 +-
>  arch/arm/mach-pxa/tosa.c                       | 2 +-
>  arch/arm/mach-pxa/viper.c                      | 2 +-
>  arch/arm/mach-pxa/z2.c                         | 6 +++---
>  arch/arm/mach-pxa/zeus.c                       | 6 +++---
>  arch/arm/mach-s3c24xx/mach-gta02.c             | 2 +-
>  arch/arm/mach-s3c24xx/mach-jive.c              | 2 +-
>  arch/arm/mach-s3c24xx/mach-vr1000.c            | 2 +-
>  arch/arm/mach-s3c64xx/mach-smartq.c            | 2 +-
>  arch/arm/mach-sa1100/generic.c                 | 2 +-
>  arch/arm/mach-sa1100/simpad.c                  | 2 +-
>  arch/arm/mach-u300/regulator.c                 | 2 +-
>  arch/arm/mach-vt8500/vt8500.c                  | 2 +-
>  arch/arm/xen/enlighten.c                       | 2 +-
>  44 files changed, 51 insertions(+), 51 deletions(-)
> 
> diff --git a/arch/arm/kernel/psci.c b/arch/arm/kernel/psci.c
> index f73891b..dd58d86 100644
> --- a/arch/arm/kernel/psci.c
> +++ b/arch/arm/kernel/psci.c
> @@ -264,7 +264,7 @@ static int psci_0_2_init(struct device_node *np)
>  
>  	arm_pm_restart = psci_sys_reset;
>  
> -	pm_power_off = psci_sys_poweroff;
> +	register_poweroff_handler_simple(psci_sys_poweroff, 128);
>  
>  out_put_node:
>  	of_node_put(np);
> diff --git a/arch/arm/mach-at91/board-gsia18s.c b/arch/arm/mach-at91/board-gsia18s.c
> index b729dd1..6722e66 100644
> --- a/arch/arm/mach-at91/board-gsia18s.c
> +++ b/arch/arm/mach-at91/board-gsia18s.c
> @@ -521,7 +521,7 @@ static void gsia18s_power_off(void)
>  
>  static int __init gsia18s_power_off_init(void)
>  {
> -	pm_power_off = gsia18s_power_off;
> +	register_poweroff_handler_simple(gsia18s_power_off, 128);
>  	return 0;
>  }
>  
> diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
> index f7a07a5..9989e88 100644
> --- a/arch/arm/mach-at91/setup.c
> +++ b/arch/arm/mach-at91/setup.c
> @@ -329,7 +329,7 @@ void __init at91_ioremap_shdwc(u32 base_addr)
>  	at91_shdwc_base = ioremap(base_addr, 16);
>  	if (!at91_shdwc_base)
>  		panic("Impossible to ioremap at91_shdwc_base\n");
> -	pm_power_off = at91sam9_poweroff;
> +	register_poweroff_handler_simple(at91sam9_poweroff, 128);
>  }
>  
>  void __iomem *at91_rstc_base;
> @@ -482,7 +482,7 @@ static void at91_dt_shdwc(void)
>  	at91_shdwc_write(AT91_SHDW_MR, wakeup_mode | mode);
>  
>  end:
> -	pm_power_off = at91sam9_poweroff;
> +	register_poweroff_handler_simple(at91sam9_poweroff, 128);
>  
>  	of_node_put(np);
>  }
> diff --git a/arch/arm/mach-bcm/board_bcm2835.c b/arch/arm/mach-bcm/board_bcm2835.c
> index 70f2f39..7d5784f 100644
> --- a/arch/arm/mach-bcm/board_bcm2835.c
> +++ b/arch/arm/mach-bcm/board_bcm2835.c
> @@ -111,7 +111,7 @@ static void __init bcm2835_init(void)
>  
>  	bcm2835_setup_restart();
>  	if (wdt_regs)
> -		pm_power_off = bcm2835_power_off;
> +		register_poweroff_handler_simple(bcm2835_power_off, 0);
>  
>  	bcm2835_init_clocks();
>  
> diff --git a/arch/arm/mach-cns3xxx/cns3420vb.c b/arch/arm/mach-cns3xxx/cns3420vb.c
> index d863d87..136b7c6 100644
> --- a/arch/arm/mach-cns3xxx/cns3420vb.c
> +++ b/arch/arm/mach-cns3xxx/cns3420vb.c
> @@ -224,7 +224,7 @@ static void __init cns3420_init(void)
>  	cns3xxx_ahci_init();
>  	cns3xxx_sdhci_init();
>  
> -	pm_power_off = cns3xxx_power_off;
> +	register_poweroff_handler_simple(cns3xxx_power_off, 128);
>  }
>  
>  static struct map_desc cns3420_io_desc[] __initdata = {
> diff --git a/arch/arm/mach-cns3xxx/core.c b/arch/arm/mach-cns3xxx/core.c
> index f85449a..79e6ead 100644
> --- a/arch/arm/mach-cns3xxx/core.c
> +++ b/arch/arm/mach-cns3xxx/core.c
> @@ -386,7 +386,7 @@ static void __init cns3xxx_init(void)
>  		cns3xxx_pwr_soft_rst(CNS3XXX_PWR_SOFTWARE_RST(SDIO));
>  	}
>  
> -	pm_power_off = cns3xxx_power_off;
> +	register_poweroff_handler_simple(cns3xxx_power_off, 128);
>  
>  	of_platform_populate(NULL, of_default_bus_match_table,
>                          cns3xxx_auxdata, NULL);
> diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
> index 8c35ae4..25d0134 100644
> --- a/arch/arm/mach-highbank/highbank.c
> +++ b/arch/arm/mach-highbank/highbank.c
> @@ -155,7 +155,7 @@ static void __init highbank_init(void)
>  	sregs_base = of_iomap(np, 0);
>  	WARN_ON(!sregs_base);
>  
> -	pm_power_off = highbank_power_off;
> +	register_poweroff_handler_simple(highbank_power_off, 0);
>  	highbank_pm_init();
>  
>  	bus_register_notifier(&platform_bus_type, &highbank_platform_nb);
> diff --git a/arch/arm/mach-imx/mach-mx31moboard.c b/arch/arm/mach-imx/mach-mx31moboard.c
> index bb6f8a5..9b3616f 100644
> --- a/arch/arm/mach-imx/mach-mx31moboard.c
> +++ b/arch/arm/mach-imx/mach-mx31moboard.c
> @@ -559,7 +559,7 @@ static void __init mx31moboard_init(void)
>  
>  	imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
>  
> -	pm_power_off = mx31moboard_poweroff;
> +	register_poweroff_handler_simple(mx31moboard_poweroff, 128);
>  
>  	switch (mx31moboard_baseboard) {
>  	case MX31NOBOARD:
> diff --git a/arch/arm/mach-iop32x/em7210.c b/arch/arm/mach-iop32x/em7210.c
> index 77e1ff0..beeeb0c2 100644
> --- a/arch/arm/mach-iop32x/em7210.c
> +++ b/arch/arm/mach-iop32x/em7210.c
> @@ -201,7 +201,7 @@ static int __init em7210_request_gpios(void)
>  		return 0;
>  	}
>  
> -	pm_power_off = em7210_power_off;
> +	register_poweroff_handler_simple(em7210_power_off, 128);
>  
>  	return 0;
>  }
> diff --git a/arch/arm/mach-iop32x/glantank.c b/arch/arm/mach-iop32x/glantank.c
> index 547b234..050a8e6 100644
> --- a/arch/arm/mach-iop32x/glantank.c
> +++ b/arch/arm/mach-iop32x/glantank.c
> @@ -199,7 +199,7 @@ static void __init glantank_init_machine(void)
>  	i2c_register_board_info(0, glantank_i2c_devices,
>  		ARRAY_SIZE(glantank_i2c_devices));
>  
> -	pm_power_off = glantank_power_off;
> +	register_poweroff_handler_simple(glantank_power_off, 128);
>  }
>  
>  MACHINE_START(GLANTANK, "GLAN Tank")
> diff --git a/arch/arm/mach-iop32x/iq31244.c b/arch/arm/mach-iop32x/iq31244.c
> index 0e1392b..4e9b972 100644
> --- a/arch/arm/mach-iop32x/iq31244.c
> +++ b/arch/arm/mach-iop32x/iq31244.c
> @@ -293,7 +293,7 @@ static void __init iq31244_init_machine(void)
>  	platform_device_register(&iop3xx_dma_1_channel);
>  
>  	if (is_ep80219())
> -		pm_power_off = ep80219_power_off;
> +		register_poweroff_handler_simple(ep80219_power_off, 128);
>  
>  	if (!is_80219())
>  		platform_device_register(&iop3xx_aau_channel);
> diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c
> index c1cd80e..171d496 100644
> --- a/arch/arm/mach-iop32x/n2100.c
> +++ b/arch/arm/mach-iop32x/n2100.c
> @@ -356,7 +356,7 @@ static void __init n2100_init_machine(void)
>  	i2c_register_board_info(0, n2100_i2c_devices,
>  		ARRAY_SIZE(n2100_i2c_devices));
>  
> -	pm_power_off = n2100_power_off;
> +	register_poweroff_handler_simple(n2100_power_off, 128);
>  }
>  
>  MACHINE_START(N2100, "Thecus N2100")
> diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c
> index 43ee06d..6fb5072 100644
> --- a/arch/arm/mach-ixp4xx/dsmg600-setup.c
> +++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c
> @@ -281,7 +281,7 @@ static void __init dsmg600_init(void)
>  
>  	platform_add_devices(dsmg600_devices, ARRAY_SIZE(dsmg600_devices));
>  
> -	pm_power_off = dsmg600_power_off;
> +	register_poweroff_handler_simple(dsmg600_power_off, 128);
>  }
>  
>  MACHINE_START(DSMG600, "D-Link DSM-G600 RevA")
> diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
> index 4e0f762..bd9a8d6 100644
> --- a/arch/arm/mach-ixp4xx/nas100d-setup.c
> +++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
> @@ -292,7 +292,7 @@ static void __init nas100d_init(void)
>  
>  	platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
>  
> -	pm_power_off = nas100d_power_off;
> +	register_poweroff_handler_simple(nas100d_power_off, 128);
>  
>  	if (request_irq(gpio_to_irq(NAS100D_RB_GPIO), &nas100d_reset_handler,
>  		IRQF_TRIGGER_LOW, "NAS100D reset button", NULL) < 0) {
> diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
> index 88c025f..c4c5475 100644
> --- a/arch/arm/mach-ixp4xx/nslu2-setup.c
> +++ b/arch/arm/mach-ixp4xx/nslu2-setup.c
> @@ -262,7 +262,7 @@ static void __init nslu2_init(void)
>  
>  	platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
>  
> -	pm_power_off = nslu2_power_off;
> +	register_poweroff_handler_simple(nslu2_power_off, 128);
>  
>  	if (request_irq(gpio_to_irq(NSLU2_RB_GPIO), &nslu2_reset_handler,
>  		IRQF_TRIGGER_LOW, "NSLU2 reset button", NULL) < 0) {
> diff --git a/arch/arm/mach-omap2/board-omap3touchbook.c b/arch/arm/mach-omap2/board-omap3touchbook.c
> index 70b904c..0c0a0e2 100644
> --- a/arch/arm/mach-omap2/board-omap3touchbook.c
> +++ b/arch/arm/mach-omap2/board-omap3touchbook.c
> @@ -344,7 +344,7 @@ static void __init omap3_touchbook_init(void)
>  {
>  	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
>  
> -	pm_power_off = omap3_touchbook_poweroff;
> +	register_poweroff_handler_simple(omap3_touchbook_poweroff, 128);
>  
>  	if (system_rev >= 0x20 && system_rev <= 0x34301000) {
>  		omap_mux_init_gpio(23, OMAP_PIN_INPUT);
> diff --git a/arch/arm/mach-orion5x/board-mss2.c b/arch/arm/mach-orion5x/board-mss2.c
> index 66f9c3b..3840d66 100644
> --- a/arch/arm/mach-orion5x/board-mss2.c
> +++ b/arch/arm/mach-orion5x/board-mss2.c
> @@ -86,5 +86,5 @@ static void mss2_power_off(void)
>  void __init mss2_init(void)
>  {
>  	/* register mss2 specific power-off method */
> -	pm_power_off = mss2_power_off;
> +	register_poweroff_handler_simple(mss2_power_off, 0);
>  }
> diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c
> index 56edeab..353ca3d 100644
> --- a/arch/arm/mach-orion5x/dns323-setup.c
> +++ b/arch/arm/mach-orion5x/dns323-setup.c
> @@ -669,7 +669,7 @@ static void __init dns323_init(void)
>  		if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
>  		    gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
>  			pr_err("DNS-323: failed to setup power-off GPIO\n");
> -		pm_power_off = dns323a_power_off;
> +		register_poweroff_handler_simple(dns323a_power_off, 128);
>  		break;
>  	case DNS323_REV_B1:
>  		/* 5182 built-in SATA init */
> @@ -686,7 +686,7 @@ static void __init dns323_init(void)
>  		if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
>  		    gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
>  			pr_err("DNS-323: failed to setup power-off GPIO\n");
> -		pm_power_off = dns323b_power_off;
> +		register_poweroff_handler_simple(dns323b_power_off, 128);
>  		break;
>  	case DNS323_REV_C1:
>  		/* 5182 built-in SATA init */
> @@ -696,7 +696,7 @@ static void __init dns323_init(void)
>  		if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 ||
>  		    gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0)
>  			pr_err("DNS-323: failed to setup power-off GPIO\n");
> -		pm_power_off = dns323c_power_off;
> +		register_poweroff_handler_simple(dns323c_power_off, 128);
>  
>  		/* Now, -this- should theorically be done by the sata_mv driver
>  		 * once I figure out what's going on there. Maybe the behaviour
> diff --git a/arch/arm/mach-orion5x/kurobox_pro-setup.c b/arch/arm/mach-orion5x/kurobox_pro-setup.c
> index fe6a48a..c4101f1 100644
> --- a/arch/arm/mach-orion5x/kurobox_pro-setup.c
> +++ b/arch/arm/mach-orion5x/kurobox_pro-setup.c
> @@ -376,7 +376,7 @@ static void __init kurobox_pro_init(void)
>  	i2c_register_board_info(0, &kurobox_pro_i2c_rtc, 1);
>  
>  	/* register Kurobox Pro specific power-off method */
> -	pm_power_off = kurobox_pro_power_off;
> +	register_poweroff_handler_simple(kurobox_pro_power_off, 128);
>  }
>  
>  #ifdef CONFIG_MACH_KUROBOX_PRO
> diff --git a/arch/arm/mach-orion5x/ls-chl-setup.c b/arch/arm/mach-orion5x/ls-chl-setup.c
> index 028ea03..005bb04 100644
> --- a/arch/arm/mach-orion5x/ls-chl-setup.c
> +++ b/arch/arm/mach-orion5x/ls-chl-setup.c
> @@ -312,7 +312,7 @@ static void __init lschl_init(void)
>  	gpio_set_value(LSCHL_GPIO_USB_POWER, 1);
>  
>  	/* register power-off method */
> -	pm_power_off = lschl_power_off;
> +	register_poweroff_handler_simple(lschl_power_off, 0);
>  
>  	pr_info("%s: finished\n", __func__);
>  }
> diff --git a/arch/arm/mach-orion5x/ls_hgl-setup.c b/arch/arm/mach-orion5x/ls_hgl-setup.c
> index 32b7129..37c29a0 100644
> --- a/arch/arm/mach-orion5x/ls_hgl-setup.c
> +++ b/arch/arm/mach-orion5x/ls_hgl-setup.c
> @@ -259,7 +259,7 @@ static void __init ls_hgl_init(void)
>  	gpio_set_value(LS_HGL_GPIO_USB_POWER, 1);
>  
>  	/* register power-off method */
> -	pm_power_off = ls_hgl_power_off;
> +	register_poweroff_handler_simple(ls_hgl_power_off, 0);
>  
>  	pr_info("%s: finished\n", __func__);
>  }
> diff --git a/arch/arm/mach-orion5x/lsmini-setup.c b/arch/arm/mach-orion5x/lsmini-setup.c
> index a6493e7..ffec72f 100644
> --- a/arch/arm/mach-orion5x/lsmini-setup.c
> +++ b/arch/arm/mach-orion5x/lsmini-setup.c
> @@ -260,7 +260,7 @@ static void __init lsmini_init(void)
>  	gpio_set_value(LSMINI_GPIO_USB_POWER, 1);
>  
>  	/* register power-off method */
> -	pm_power_off = lsmini_power_off;
> +	register_poweroff_handler_simple(lsmini_power_off, 0);
>  
>  	pr_info("%s: finished\n", __func__);
>  }
> diff --git a/arch/arm/mach-orion5x/mv2120-setup.c b/arch/arm/mach-orion5x/mv2120-setup.c
> index e032f01..dadc2b9 100644
> --- a/arch/arm/mach-orion5x/mv2120-setup.c
> +++ b/arch/arm/mach-orion5x/mv2120-setup.c
> @@ -225,7 +225,7 @@ static void __init mv2120_init(void)
>  	if (gpio_request(MV2120_GPIO_POWER_OFF, "POWEROFF") != 0 ||
>  	    gpio_direction_output(MV2120_GPIO_POWER_OFF, 1) != 0)
>  		pr_err("mv2120: failed to setup power-off GPIO\n");
> -	pm_power_off = mv2120_power_off;
> +	register_poweroff_handler_simple(mv2120_power_off, 128);
>  }
>  
>  /* Warning: HP uses a wrong mach-type (=526) in their bootloader */
> diff --git a/arch/arm/mach-orion5x/net2big-setup.c b/arch/arm/mach-orion5x/net2big-setup.c
> index ba73dc7..3a73dce 100644
> --- a/arch/arm/mach-orion5x/net2big-setup.c
> +++ b/arch/arm/mach-orion5x/net2big-setup.c
> @@ -413,7 +413,7 @@ static void __init net2big_init(void)
>  
>  	if (gpio_request(NET2BIG_GPIO_POWER_OFF, "power-off") == 0 &&
>  	    gpio_direction_output(NET2BIG_GPIO_POWER_OFF, 0) == 0)
> -		pm_power_off = net2big_power_off;
> +		register_poweroff_handler_simple(net2big_power_off, 128);
>  	else
>  		pr_err("net2big: failed to configure power-off GPIO\n");
>  
> diff --git a/arch/arm/mach-orion5x/terastation_pro2-setup.c b/arch/arm/mach-orion5x/terastation_pro2-setup.c
> index 6208d12..2a234cb 100644
> --- a/arch/arm/mach-orion5x/terastation_pro2-setup.c
> +++ b/arch/arm/mach-orion5x/terastation_pro2-setup.c
> @@ -353,7 +353,7 @@ static void __init tsp2_init(void)
>  	i2c_register_board_info(0, &tsp2_i2c_rtc, 1);
>  
>  	/* register Terastation Pro II specific power-off method */
> -	pm_power_off = tsp2_power_off;
> +	register_poweroff_handler_simple(tsp2_power_off, 128);
>  }
>  
>  MACHINE_START(TERASTATION_PRO2, "Buffalo Terastation Pro II/Live")
> diff --git a/arch/arm/mach-orion5x/ts209-setup.c b/arch/arm/mach-orion5x/ts209-setup.c
> index 9136797..50bdfbc 100644
> --- a/arch/arm/mach-orion5x/ts209-setup.c
> +++ b/arch/arm/mach-orion5x/ts209-setup.c
> @@ -318,7 +318,7 @@ static void __init qnap_ts209_init(void)
>  	i2c_register_board_info(0, &qnap_ts209_i2c_rtc, 1);
>  
>  	/* register tsx09 specific power-off method */
> -	pm_power_off = qnap_tsx09_power_off;
> +	register_poweroff_handler_simple(qnap_tsx09_power_off, 128);
>  }
>  
>  MACHINE_START(TS209, "QNAP TS-109/TS-209")
> diff --git a/arch/arm/mach-orion5x/ts409-setup.c b/arch/arm/mach-orion5x/ts409-setup.c
> index 5c079d31..06a7cc0 100644
> --- a/arch/arm/mach-orion5x/ts409-setup.c
> +++ b/arch/arm/mach-orion5x/ts409-setup.c
> @@ -307,7 +307,7 @@ static void __init qnap_ts409_init(void)
>  	platform_device_register(&ts409_leds);
>  
>  	/* register tsx09 specific power-off method */
> -	pm_power_off = qnap_tsx09_power_off;
> +	register_poweroff_handler_simple(qnap_tsx09_power_off, 128);
>  }
>  
>  MACHINE_START(TS409, "QNAP TS-409")
> diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
> index 06022b2..a93bac0 100644
> --- a/arch/arm/mach-pxa/corgi.c
> +++ b/arch/arm/mach-pxa/corgi.c
> @@ -718,7 +718,7 @@ static void corgi_restart(enum reboot_mode mode, const char *cmd)
>  
>  static void __init corgi_init(void)
>  {
> -	pm_power_off = corgi_poweroff;
> +	register_poweroff_handler_simple(corgi_poweroff, 0);
>  
>  	/* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
>  	PCFR |= PCFR_OPDE;
> diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c
> index 29997bd..c4345a4 100644
> --- a/arch/arm/mach-pxa/mioa701.c
> +++ b/arch/arm/mach-pxa/mioa701.c
> @@ -750,7 +750,7 @@ static void __init mioa701_machine_init(void)
>  	pxa_set_keypad_info(&mioa701_keypad_info);
>  	pxa_set_udc_info(&mioa701_udc_info);
>  	pxa_set_ac97_info(&mioa701_ac97_info);
> -	pm_power_off = mioa701_poweroff;
> +	register_poweroff_handler_simple(mioa701_poweroff, 0);
>  	platform_add_devices(devices, ARRAY_SIZE(devices));
>  	gsm_init();
>  
> diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
> index 1319916..c9536ed 100644
> --- a/arch/arm/mach-pxa/poodle.c
> +++ b/arch/arm/mach-pxa/poodle.c
> @@ -432,7 +432,7 @@ static void __init poodle_init(void)
>  {
>  	int ret = 0;
>  
> -	pm_power_off = poodle_poweroff;
> +	register_poweroff_handler_simple(poodle_poweroff, 0);
>  
>  	PCFR |= PCFR_OPDE;
>  
> diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
> index 840c3a4..09f0de8 100644
> --- a/arch/arm/mach-pxa/spitz.c
> +++ b/arch/arm/mach-pxa/spitz.c
> @@ -944,7 +944,7 @@ static void spitz_restart(enum reboot_mode mode, const char *cmd)
>  static void __init spitz_init(void)
>  {
>  	init_gpio_reset(SPITZ_GPIO_ON_RESET, 1, 0);
> -	pm_power_off = spitz_poweroff;
> +	register_poweroff_handler_simple(spitz_poweroff, 0);
>  
>  	PMCR = 0x00;
>  
> diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
> index c158a6e..3a4af1d 100644
> --- a/arch/arm/mach-pxa/tosa.c
> +++ b/arch/arm/mach-pxa/tosa.c
> @@ -940,7 +940,7 @@ static void __init tosa_init(void)
>  
>  	init_gpio_reset(TOSA_GPIO_ON_RESET, 0, 0);
>  
> -	pm_power_off = tosa_poweroff;
> +	register_poweroff_handler_simple(tosa_poweroff, 0);
>  
>  	PCFR |= PCFR_OPDE;
>  
> diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
> index de3b080..679c8ea 100644
> --- a/arch/arm/mach-pxa/viper.c
> +++ b/arch/arm/mach-pxa/viper.c
> @@ -919,7 +919,7 @@ static void __init viper_init(void)
>  {
>  	u8 version;
>  
> -	pm_power_off = viper_power_off;
> +	register_poweroff_handler_simple(viper_power_off, 128);
>  
>  	pxa2xx_mfp_config(ARRAY_AND_SIZE(viper_pin_config));
>  
> diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c
> index e1a121b..e0195ac 100644
> --- a/arch/arm/mach-pxa/z2.c
> +++ b/arch/arm/mach-pxa/z2.c
> @@ -693,8 +693,6 @@ static void z2_power_off(void)
>  	pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
>  	pxa27x_cpu_pm_enter(PM_SUSPEND_MEM);
>  }
> -#else
> -#define z2_power_off   NULL
>  #endif
>  
>  /******************************************************************************
> @@ -719,7 +717,9 @@ static void __init z2_init(void)
>  	z2_keys_init();
>  	z2_pmic_init();
>  
> -	pm_power_off = z2_power_off;
> +#ifdef CONFIG_PM
> +	register_poweroff_handler_simple(z2_power_off, 0);
> +#endif
>  }
>  
>  MACHINE_START(ZIPIT2, "Zipit Z2")
> diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c
> index 205f9bf..6118fd5 100644
> --- a/arch/arm/mach-pxa/zeus.c
> +++ b/arch/arm/mach-pxa/zeus.c
> @@ -690,8 +690,6 @@ static void zeus_power_off(void)
>  	local_irq_disable();
>  	cpu_suspend(PWRMODE_DEEPSLEEP, pxa27x_finish_suspend);
>  }
> -#else
> -#define zeus_power_off   NULL
>  #endif
>  
>  #ifdef CONFIG_APM_EMULATION
> @@ -847,7 +845,9 @@ static void __init zeus_init(void)
>  	__raw_writel(msc0, MSC0);
>  	__raw_writel(msc1, MSC1);
>  
> -	pm_power_off = zeus_power_off;
> +#ifdef CONFIG_PM
> +	register_poweroff_handler_simple(zeus_power_off, 0);
> +#endif
>  	zeus_setup_apm();
>  
>  	pxa2xx_mfp_config(ARRAY_AND_SIZE(zeus_pin_config));
> diff --git a/arch/arm/mach-s3c24xx/mach-gta02.c b/arch/arm/mach-s3c24xx/mach-gta02.c
> index fc3a08d..ca78150 100644
> --- a/arch/arm/mach-s3c24xx/mach-gta02.c
> +++ b/arch/arm/mach-s3c24xx/mach-gta02.c
> @@ -579,7 +579,7 @@ static void __init gta02_machine_init(void)
>  	i2c_register_board_info(0, gta02_i2c_devs, ARRAY_SIZE(gta02_i2c_devs));
>  
>  	platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices));
> -	pm_power_off = gta02_poweroff;
> +	register_poweroff_handler_simple(gta02_poweroff, 128);
>  
>  	regulator_has_full_constraints();
>  }
> diff --git a/arch/arm/mach-s3c24xx/mach-jive.c b/arch/arm/mach-s3c24xx/mach-jive.c
> index 7804d3c..5a828a3 100644
> --- a/arch/arm/mach-s3c24xx/mach-jive.c
> +++ b/arch/arm/mach-s3c24xx/mach-jive.c
> @@ -657,7 +657,7 @@ static void __init jive_machine_init(void)
>  	s3c_i2c0_set_platdata(&jive_i2c_cfg);
>  	i2c_register_board_info(0, jive_i2c_devs, ARRAY_SIZE(jive_i2c_devs));
>  
> -	pm_power_off = jive_power_off;
> +	register_poweroff_handler_simple(jive_power_off, 128);
>  
>  	platform_add_devices(jive_devices, ARRAY_SIZE(jive_devices));
>  }
> diff --git a/arch/arm/mach-s3c24xx/mach-vr1000.c b/arch/arm/mach-s3c24xx/mach-vr1000.c
> index f88c584..40d7655 100644
> --- a/arch/arm/mach-s3c24xx/mach-vr1000.c
> +++ b/arch/arm/mach-s3c24xx/mach-vr1000.c
> @@ -306,7 +306,7 @@ static void vr1000_power_off(void)
>  
>  static void __init vr1000_map_io(void)
>  {
> -	pm_power_off = vr1000_power_off;
> +	register_poweroff_handler_simple(vr1000_power_off, 128);
>  
>  	s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
>  	s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
> diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
> index b3d1353..61f0893 100644
> --- a/arch/arm/mach-s3c64xx/mach-smartq.c
> +++ b/arch/arm/mach-s3c64xx/mach-smartq.c
> @@ -291,7 +291,7 @@ static int __init smartq_power_off_init(void)
>  	/* leave power on */
>  	gpio_direction_output(S3C64XX_GPK(15), 0);
>  
> -	pm_power_off = smartq_power_off;
> +	register_poweroff_handler_simple(smartq_power_off, 128);
>  
>  	return ret;
>  }
> diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
> index d4ea142..6b839cf 100644
> --- a/arch/arm/mach-sa1100/generic.c
> +++ b/arch/arm/mach-sa1100/generic.c
> @@ -311,7 +311,7 @@ static struct platform_device *sa11x0_devices[] __initdata = {
>  
>  static int __init sa1100_init(void)
>  {
> -	pm_power_off = sa1100_power_off;
> +	register_poweroff_handler_simple(sa1100_power_off, 0);
>  	return platform_add_devices(sa11x0_devices, ARRAY_SIZE(sa11x0_devices));
>  }
>  
> diff --git a/arch/arm/mach-sa1100/simpad.c b/arch/arm/mach-sa1100/simpad.c
> index 41e476e..a65ca58 100644
> --- a/arch/arm/mach-sa1100/simpad.c
> +++ b/arch/arm/mach-sa1100/simpad.c
> @@ -373,7 +373,7 @@ static int __init simpad_init(void)
>  	if (ret)
>  		printk(KERN_WARNING "simpad: Unable to register cs3 GPIO device");
>  
> -	pm_power_off = simpad_power_off;
> +	register_poweroff_handler_simple(simpad_power_off, 0);
>  
>  	sa11x0_ppc_configure_mcp();
>  	sa11x0_register_mtd(&simpad_flash_data, simpad_flash_resources,
> diff --git a/arch/arm/mach-u300/regulator.c b/arch/arm/mach-u300/regulator.c
> index 0493a84..c98eb6e 100644
> --- a/arch/arm/mach-u300/regulator.c
> +++ b/arch/arm/mach-u300/regulator.c
> @@ -98,7 +98,7 @@ static int __init __u300_init_boardpower(struct platform_device *pdev)
>  			   U300_SYSCON_PMCR_DCON_ENABLE, 0);
>  
>  	/* Register globally exported PM poweroff hook */
> -	pm_power_off = u300_pm_poweroff;
> +	register_poweroff_handler_simple(u300_pm_poweroff, 128);
>  
>  	return 0;
>  }
> diff --git a/arch/arm/mach-vt8500/vt8500.c b/arch/arm/mach-vt8500/vt8500.c
> index 2da7be3..515946b 100644
> --- a/arch/arm/mach-vt8500/vt8500.c
> +++ b/arch/arm/mach-vt8500/vt8500.c
> @@ -155,7 +155,7 @@ static void __init vt8500_init(void)
>  			pr_err("%s:ioremap(power_off) failed\n", __func__);
>  	}
>  	if (pmc_base)
> -		pm_power_off = &vt8500_power_off;
> +		register_poweroff_handler_simple(vt8500_power_off, 0);
>  	else
>  		pr_err("%s: PMC Hibernation register could not be remapped, not enabling power off!\n", __func__);
>  
> diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
> index 0e15f01..0da639b 100644
> --- a/arch/arm/xen/enlighten.c
> +++ b/arch/arm/xen/enlighten.c
> @@ -336,7 +336,7 @@ static int __init xen_pm_init(void)
>  	if (!xen_domain())
>  		return -ENODEV;
>  
> -	pm_power_off = xen_power_off;
> +	register_poweroff_handler_simple(xen_power_off, 128);
>  	arm_pm_restart = xen_restart;
>  
>  	return 0;
> 


-- 
Nicolas Ferre
--
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Subject: Re: [PATCH 04/44] m68k: Replace mach_power_off with pm_power_off
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On Tue, Oct 7, 2014 at 7:28 AM, Guenter Roeck <linux@roeck-us.net> wrote:
> Replace mach_power_off with pm_power_off to simplify the subsequent
> move of pm_power_off to generic code.

Thanks!

> Cc: Geert Uytterhoeven <geert@linux-m68k.org>
> Cc: Greg Ungerer <gerg@uclinux.org>
> Cc: Joshua Thompson <funaho@jurai.org>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Looks OK, so since you said it builds ;-)

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Subject: Re: [PATCH 08/44] kernel: Move pm_power_off to common code
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On Tue, Oct 7, 2014 at 7:28 AM, Guenter Roeck <linux@roeck-us.net> wrote:
> pm_power_off is defined for all architectures. Move it to common code.
>
> Have all architectures call do_kernel_poweroff instead of pm_power_off.
> Some architectures point pm_power_off to machine_power_off. For those,
> call do_kernel_poweroff from machine_power_off instead.

>  arch/m68k/kernel/process.c         |  6 +-----

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Subject: Re: [PATCH 35/44] m68k: Register with kernel poweroff handler
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On Tue, Oct 7, 2014 at 7:28 AM, Guenter Roeck <linux@roeck-us.net> wrote:
> Register with kernel poweroff handler instead of setting pm_power_off
> directly.
>
> Cc: Geert Uytterhoeven <geert@linux-m68k.org>
> Cc: Joshua Thompson <funaho@jurai.org>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>

As someone already mentioned, having #defines instead of hardcoded
numbers for the priorities would be nice.

Apart from that:

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

> +       register_poweroff_handler_simple(nf_poweroff, 128);

> +       register_poweroff_handler_simple(mac_poweroff, 128);

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Subject: Re: [PATCH 05/44] mfd: as3722: Drop reference to pm_power_off from
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To: Guenter Roeck <linux@roeck-us.net>
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Thread-Topic: [PATCH 05/44] mfd: as3722: Drop reference to pm_power_off from
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On Tue, Oct 07, 2014 at 06:28:07AM +0100, Guenter Roeck wrote:
> Devicetree bindings are supposed to be operating system independent
> and should thus not describe how a specific functionality is implemented
> in Linux.
> 
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Pawel Moll <pawel.moll@arm.com>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  Documentation/devicetree/bindings/mfd/as3722.txt | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)

Thanks for the fix-up!

Acked-by: Mark Rutland <mark.rutland@arm.com>

Mark.

> 
> diff --git a/Documentation/devicetree/bindings/mfd/as3722.txt b/Documentation/devicetree/bindings/mfd/as3722.txt
> index 4f64b2a..0b2a609 100644
> --- a/Documentation/devicetree/bindings/mfd/as3722.txt
> +++ b/Documentation/devicetree/bindings/mfd/as3722.txt
> @@ -122,8 +122,7 @@ Following are properties of regulator subnode.
>  
>  Power-off:
>  =========
> -AS3722 supports the system power off by turning off all its rail. This
> -is provided through pm_power_off.
> +AS3722 supports the system power off by turning off all its rails.
>  The device node should have the following properties to enable this
>  functionality
>  ams,system-power-controller: Boolean, to enable the power off functionality
> -- 
> 1.9.1
> 
> --
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From - Thu Nov 08 21:10:48 2018
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Subject: Re: [PATCH 07/44] qnap-poweroff: Drop reference to pm_power_off from
 devicetree bindings
Date: Tue, 7 Oct 2014 12:02:19 +0100
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To: Guenter Roeck <linux@roeck-us.net>
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On Tue, Oct 07, 2014 at 06:28:09AM +0100, Guenter Roeck wrote:
> Replace reference to pm_power_off (which is an implementation detail)
> and replace it with a more generic description of the driver's functionality.
> 
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Pawel Moll <pawel.moll@arm.com>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt
> index af25e77..1e2260a 100644
> --- a/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt
> +++ b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt
> @@ -3,8 +3,8 @@
>  QNAP NAS devices have a microcontroller controlling the main power
>  supply. This microcontroller is connected to UART1 of the Kirkwood and
>  Orion5x SoCs. Sending the character 'A', at 19200 baud, tells the
> -microcontroller to turn the power off. This driver adds a handler to
> -pm_power_off which is called to turn the power off.
> +microcontroller to turn the power off. This driver installs a handler
> +to power off the system.

I'd remove the last sentence -- the driver is also independent of the
HW, and the description of how the power off works at the HW level is
sufficient.

With that:

Acked-by: Mark Rutland <mark.rutland@arm.com>

Thanks,
Mark.
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Newsgroups: gmane.linux.acpi.devel,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: Re: [PATCH 06/44] gpio-poweroff: Drop reference to pm_power_off from
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On Tue, Oct 07, 2014 at 06:28:08AM +0100, Guenter Roeck wrote:
> pm_power_off is an implementation detail. Replace it with a more generic
> description of the driver's functionality.
> 
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Pawel Moll <pawel.moll@arm.com>
> Cc: Mark Rutland <mark.rutland@arm.com>

Acked-by: Mark Rutland <mark.rutland@arm.com>

> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  Documentation/devicetree/bindings/gpio/gpio-poweroff.txt | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt b/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt
> index d4eab92..c95a1a6 100644
> --- a/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt
> +++ b/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt
> @@ -2,12 +2,12 @@ Driver a GPIO line that can be used to turn the power off.
>  
>  The driver supports both level triggered and edge triggered power off.
>  At driver load time, the driver will request the given gpio line and
> -install a pm_power_off handler. If the optional properties 'input' is
> -not found, the GPIO line will be driven in the inactive
> +install a handler to power off the system. If the optional properties
> +'input' is not found, the GPIO line will be driven in the inactive
>  state. Otherwise its configured as an input.
>  
> -When the pm_power_off is called, the gpio is configured as an output,
> -and drive active, so triggering a level triggered power off
> +When the the poweroff handler is called, the gpio is configured as an
> +output, and drive active, so triggering a level triggered power off
>  condition. This will also cause an inactive->active edge condition, so
>  triggering positive edge triggered power off. After a delay of 100ms,
>  the GPIO is set to inactive, thus causing an active->inactive edge,
> @@ -24,7 +24,7 @@ Required properties:
>  
>  Optional properties:
>  - input : Initially configure the GPIO line as an input. Only reconfigure
> -  it to an output when the pm_power_off function is called. If this optional
> +  it to an output when the poweroff handler is called. If this optional
>    property is not specified, the GPIO is initialized as an output in its
>    inactive state.
>  
> -- 
> 1.9.1
> 
> 
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Am 07.10.2014 07:28, schrieb Guenter Roeck:
>  arch/um/kernel/reboot.c            |  2 --

Acked-by: Richard Weinberger <richard@nod.at>

Thanks,
//richard

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Subject: Re: [PATCH 06/44] gpio-poweroff: Drop reference to pm_power_off from
 devicetree bindings
Date: Tue, 7 Oct 2014 17:50:44 +0200
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	Rob Her
To: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
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On Mon, Oct 06, 2014 at 10:28:08PM -0700, Guenter Roeck wrote:
> pm_power_off is an implementation detail. Replace it with a more generic
> description of the driver's functionality.
> 
> Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Cc: Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>
> Cc: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
> Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>

Acked-by: Andrew Lunn <andrew-g2DYL2Zd6BY@public.gmane.org>

Thanks
	Andrew
> ---
>  Documentation/devicetree/bindings/gpio/gpio-poweroff.txt | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt b/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt
> index d4eab92..c95a1a6 100644
> --- a/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt
> +++ b/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt
> @@ -2,12 +2,12 @@ Driver a GPIO line that can be used to turn the power off.
>  
>  The driver supports both level triggered and edge triggered power off.
>  At driver load time, the driver will request the given gpio line and
> -install a pm_power_off handler. If the optional properties 'input' is
> -not found, the GPIO line will be driven in the inactive
> +install a handler to power off the system. If the optional properties
> +'input' is not found, the GPIO line will be driven in the inactive
>  state. Otherwise its configured as an input.
>  
> -When the pm_power_off is called, the gpio is configured as an output,
> -and drive active, so triggering a level triggered power off
> +When the the poweroff handler is called, the gpio is configured as an
> +output, and drive active, so triggering a level triggered power off
>  condition. This will also cause an inactive->active edge condition, so
>  triggering positive edge triggered power off. After a delay of 100ms,
>  the GPIO is set to inactive, thus causing an active->inactive edge,
> @@ -24,7 +24,7 @@ Required properties:
>  
>  Optional properties:
>  - input : Initially configure the GPIO line as an input. Only reconfigure
> -  it to an output when the pm_power_off function is called. If this optional
> +  it to an output when the poweroff handler is called. If this optional
>    property is not specified, the GPIO is initialized as an output in its
>    inactive state.
>  
> -- 
> 1.9.1
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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Subject: Re: [PATCH 07/44] qnap-poweroff: Drop reference to pm_power_off from
 devicetree bindings
Date: Tue, 7 Oct 2014 17:51:24 +0200
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	Rob Her
To: Guenter Roeck <linux@roeck-us.net>
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On Mon, Oct 06, 2014 at 10:28:09PM -0700, Guenter Roeck wrote:
> Replace reference to pm_power_off (which is an implementation detail)
> and replace it with a more generic description of the driver's functionality.

Acked-by: Andrew Lunn <andrew@lunn.ch>

Thanks
	Andrew

> 
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Pawel Moll <pawel.moll@arm.com>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt
> index af25e77..1e2260a 100644
> --- a/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt
> +++ b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt
> @@ -3,8 +3,8 @@
>  QNAP NAS devices have a microcontroller controlling the main power
>  supply. This microcontroller is connected to UART1 of the Kirkwood and
>  Orion5x SoCs. Sending the character 'A', at 19200 baud, tells the
> -microcontroller to turn the power off. This driver adds a handler to
> -pm_power_off which is called to turn the power off.
> +microcontroller to turn the power off. This driver installs a handler
> +to power off the system.
>  
>  Synology NAS devices use a similar scheme, but a different baud rate,
>  9600, and a different character, '1'.
> -- 
> 1.9.1
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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Subject: Re: [PATCH 07/44] qnap-poweroff: Drop reference to pm_power_off from
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To: Mark Rutland <mark.rutland@arm.com>
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On Tue, Oct 07, 2014 at 12:02:19PM +0100, Mark Rutland wrote:
> On Tue, Oct 07, 2014 at 06:28:09AM +0100, Guenter Roeck wrote:
> > Replace reference to pm_power_off (which is an implementation detail)
> > and replace it with a more generic description of the driver's functionality.
> > 
> > Cc: Rob Herring <robh+dt@kernel.org>
> > Cc: Pawel Moll <pawel.moll@arm.com>
> > Cc: Mark Rutland <mark.rutland@arm.com>
> > Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> > ---
> >  Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt
> > index af25e77..1e2260a 100644
> > --- a/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt
> > +++ b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt
> > @@ -3,8 +3,8 @@
> >  QNAP NAS devices have a microcontroller controlling the main power
> >  supply. This microcontroller is connected to UART1 of the Kirkwood and
> >  Orion5x SoCs. Sending the character 'A', at 19200 baud, tells the
> > -microcontroller to turn the power off. This driver adds a handler to
> > -pm_power_off which is called to turn the power off.
> > +microcontroller to turn the power off. This driver installs a handler
> > +to power off the system.
> 
> I'd remove the last sentence -- the driver is also independent of the
> HW, and the description of how the power off works at the HW level is
> sufficient.
> 
Done.

> With that:
> 
> Acked-by: Mark Rutland <mark.rutland@arm.com>
> 
Thanks!

Guenter

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Subject: Re: [PATCH 21/44] power/reset: gpio-poweroff: Register with kernel
 poweroff handler
Date: Tue, 7 Oct 2014 18:00:56 +0200
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Cc: linux-kernel@vger.kernel.org, linux-m32r-ja@ml.linux-m32r.org,
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	David Woodhouse <dwmw2@infrad
To: Guenter Roeck <linux@roeck-us.net>
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On Mon, Oct 06, 2014 at 10:28:23PM -0700, Guenter Roeck wrote:
> Register with kernel poweroff handler instead of setting pm_power_off
> directly. Register with a low priority value of 64 to reflect that
> the original code only sets pm_power_off if it was not already set.
> 
> Other changes:
> 
> Drop note that there can not be an additional instance of this driver.
> The original reason no longer applies, it should be obvious that there
> can only be one instance of the driver if static variables are used to
> reflect its state, and support for multiple instances can now be added
> easily if needed by avoiding static variables.
> 
> Do not create an error message if another poweroff handler has already been
> registered. This is perfectly normal and acceptable.
> 
> Do not display a warning traceback if the poweroff handler fails to
> power off the system. There may be other poweroff handlers.

I would prefer to keep the warning traceback. We found on some
hardware the GPIO transitions were too fast and it failed to power
off. Seeing the traceback gives an idea where to go look for the
problem.

Other than that,

Acked-by: Andrew Lunn <andrew@lunn.ch>

> 
> Cc: Sebastian Reichel <sre@kernel.org>
> Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
> Cc: David Woodhouse <dwmw2@infradead.org>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  drivers/power/reset/gpio-poweroff.c | 36 ++++++++++++++++++------------------
>  1 file changed, 18 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/power/reset/gpio-poweroff.c b/drivers/power/reset/gpio-poweroff.c
> index ce849bc..e95a7a1 100644
> --- a/drivers/power/reset/gpio-poweroff.c
> +++ b/drivers/power/reset/gpio-poweroff.c
> @@ -14,18 +14,18 @@
>  #include <linux/kernel.h>
>  #include <linux/init.h>
>  #include <linux/delay.h>
> +#include <linux/notifier.h>
> +#include <linux/pm.h>
>  #include <linux/platform_device.h>
>  #include <linux/gpio/consumer.h>
>  #include <linux/of_platform.h>
>  #include <linux/module.h>
>  
> -/*
> - * Hold configuration here, cannot be more than one instance of the driver
> - * since pm_power_off itself is global.
> - */
>  static struct gpio_desc *reset_gpio;
>  
> -static void gpio_poweroff_do_poweroff(void)
> +static int gpio_poweroff_do_poweroff(struct notifier_block *this,
> +				     unsigned long unused1, void *unused2)
> +
>  {
>  	BUG_ON(!reset_gpio);
>  
> @@ -42,20 +42,18 @@ static void gpio_poweroff_do_poweroff(void)
>  	/* give it some time */
>  	mdelay(3000);
>  
> -	WARN_ON(1);
> +	return NOTIFY_DONE;
>  }
>  
> +static struct notifier_block gpio_poweroff_nb = {
> +	.notifier_call = gpio_poweroff_do_poweroff,
> +	.priority = 64,
> +};
> +
>  static int gpio_poweroff_probe(struct platform_device *pdev)
>  {
>  	bool input = false;
> -
> -	/* If a pm_power_off function has already been added, leave it alone */
> -	if (pm_power_off != NULL) {
> -		dev_err(&pdev->dev,
> -			"%s: pm_power_off function already registered",
> -		       __func__);
> -		return -EBUSY;
> -	}
> +	int err;
>  
>  	reset_gpio = devm_gpiod_get(&pdev->dev, NULL);
>  	if (IS_ERR(reset_gpio))
> @@ -77,14 +75,16 @@ static int gpio_poweroff_probe(struct platform_device *pdev)
>  		}
>  	}
>  
> -	pm_power_off = &gpio_poweroff_do_poweroff;
> -	return 0;
> +	err = register_poweroff_handler(&gpio_poweroff_nb);
> +	if (err)
> +		dev_err(&pdev->dev, "Failed to register poweroff handler\n");
> +
> +	return err;
>  }
>  
>  static int gpio_poweroff_remove(struct platform_device *pdev)
>  {
> -	if (pm_power_off == &gpio_poweroff_do_poweroff)
> -		pm_power_off = NULL;
> +	unregister_poweroff_handler(&gpio_poweroff_nb);
>  
>  	return 0;
>  }
> -- 
> 1.9.1
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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Subject: Re: [PATCH 23/44] power/reset: qnap-poweroff: Register with kernel
 poweroff handler
Date: Tue, 7 Oct 2014 18:02:08 +0200
Lines: 100
Approved: news@gmane.org
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Cc: linux-m32r-ja@ml.linux-m32r.org, linux-mips@linux-mips.org,
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To: Guenter Roeck <linux@roeck-us.net>
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On Mon, Oct 06, 2014 at 10:28:25PM -0700, Guenter Roeck wrote:
> Register with kernel poweroff handler instead of setting pm_power_off
> directly. Register with default priority value of 128 to reflect that
> the original code generates an error if another poweroff handler has
> already been registered when the driver is loaded.
> 
> Cc: Sebastian Reichel <sre@kernel.org>
> Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
> Cc: David Woodhouse <dwmw2@infradead.org>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Acked-by: Andrew Lunn <andrew@lunn.ch>

Thanks
	Andrew

> ---
>  drivers/power/reset/qnap-poweroff.c | 28 ++++++++++++++--------------
>  1 file changed, 14 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/power/reset/qnap-poweroff.c b/drivers/power/reset/qnap-poweroff.c
> index a75db7f..c474980 100644
> --- a/drivers/power/reset/qnap-poweroff.c
> +++ b/drivers/power/reset/qnap-poweroff.c
> @@ -16,7 +16,9 @@
>  
>  #include <linux/kernel.h>
>  #include <linux/module.h>
> +#include <linux/notifier.h>
>  #include <linux/platform_device.h>
> +#include <linux/pm.h>
>  #include <linux/serial_reg.h>
>  #include <linux/kallsyms.h>
>  #include <linux/of.h>
> @@ -55,7 +57,8 @@ static void __iomem *base;
>  static unsigned long tclk;
>  static const struct power_off_cfg *cfg;
>  
> -static void qnap_power_off(void)
> +static int qnap_power_off(struct notifier_block *this, unsigned long unused1,
> +			  void *unused2)
>  {
>  	const unsigned divisor = ((tclk + (8 * cfg->baud)) / (16 * cfg->baud));
>  
> @@ -72,14 +75,20 @@ static void qnap_power_off(void)
>  
>  	/* send the power-off command to PIC */
>  	writel(cfg->cmd, UART1_REG(TX));
> +
> +	return NOTIFY_DONE;
>  }
>  
> +static struct notifier_block qnap_poweroff_nb = {
> +	.notifier_call = qnap_power_off,
> +	.priority = 128,
> +};
> +
>  static int qnap_power_off_probe(struct platform_device *pdev)
>  {
>  	struct device_node *np = pdev->dev.of_node;
>  	struct resource *res;
>  	struct clk *clk;
> -	char symname[KSYM_NAME_LEN];
>  
>  	const struct of_device_id *match =
>  		of_match_node(qnap_power_off_of_match_table, np);
> @@ -106,22 +115,13 @@ static int qnap_power_off_probe(struct platform_device *pdev)
>  
>  	tclk = clk_get_rate(clk);
>  
> -	/* Check that nothing else has already setup a handler */
> -	if (pm_power_off) {
> -		lookup_symbol_name((ulong)pm_power_off, symname);
> -		dev_err(&pdev->dev,
> -			"pm_power_off already claimed %p %s",
> -			pm_power_off, symname);
> -		return -EBUSY;
> -	}
> -	pm_power_off = qnap_power_off;
> -
> -	return 0;
> +	return register_poweroff_handler(&qnap_poweroff_nb);
>  }
>  
>  static int qnap_power_off_remove(struct platform_device *pdev)
>  {
> -	pm_power_off = NULL;
> +	unregister_poweroff_handler(&qnap_poweroff_nb);
> +
>  	return 0;
>  }
>  
> -- 
> 1.9.1
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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Subject: Re: [PATCH 20/44] power/reset: restart-poweroff: Register with
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Date: Tue, 7 Oct 2014 18:06:38 +0200
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To: Guenter Roeck <linux@roeck-us.net>
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On Mon, Oct 06, 2014 at 10:28:22PM -0700, Guenter Roeck wrote:
> Register with kernel poweroff handler instead of seting pm_power_off
> directly.  Register as poweroff handler of last resort since the driver
> does not really power off the system but executes a restart.

I would not say last resort, this is how it is designed to work. There
is no way to turn the power off from with linux, it is designed that
u-boot will put the hardware into minimal power consumption until the
"power" button is pressed.

Other than that, 

Acked-by: Andrew Lunn <andrew@lunn.ch>

Thanks
	Andrew

> 
> Cc: Sebastian Reichel <sre@kernel.org>
> Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
> Cc: David Woodhouse <dwmw2@infradead.org>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  drivers/power/reset/restart-poweroff.c | 25 ++++++++++++-------------
>  1 file changed, 12 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/power/reset/restart-poweroff.c b/drivers/power/reset/restart-poweroff.c
> index edd707e..5437697 100644
> --- a/drivers/power/reset/restart-poweroff.c
> +++ b/drivers/power/reset/restart-poweroff.c
> @@ -12,35 +12,34 @@
>   */
>  #include <linux/kernel.h>
>  #include <linux/init.h>
> +#include <linux/notifier.h>
>  #include <linux/platform_device.h>
>  #include <linux/of_platform.h>
>  #include <linux/module.h>
> +#include <linux/pm.h>
>  #include <linux/reboot.h>
> -#include <asm/system_misc.h>
>  
> -static void restart_poweroff_do_poweroff(void)
> +static int restart_poweroff_do_poweroff(struct notifier_block *this,
> +					unsigned long unused1, void *unused2)
>  {
>  	reboot_mode = REBOOT_HARD;
>  	machine_restart(NULL);
> +
> +	return NOTIFY_DONE;
>  }
>  
> +static struct notifier_block restart_poweroff_handler = {
> +	.notifier_call = restart_poweroff_do_poweroff,
> +};
> +
>  static int restart_poweroff_probe(struct platform_device *pdev)
>  {
> -	/* If a pm_power_off function has already been added, leave it alone */
> -	if (pm_power_off != NULL) {
> -		dev_err(&pdev->dev,
> -			"pm_power_off function already registered");
> -		return -EBUSY;
> -	}
> -
> -	pm_power_off = &restart_poweroff_do_poweroff;
> -	return 0;
> +	return register_poweroff_handler(&restart_poweroff_handler);
>  }
>  
>  static int restart_poweroff_remove(struct platform_device *pdev)
>  {
> -	if (pm_power_off == &restart_poweroff_do_poweroff)
> -		pm_power_off = NULL;
> +	unregister_poweroff_handler(&restart_poweroff_handler);
>  
>  	return 0;
>  }
> -- 
> 1.9.1
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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Subject: Re: [PATCH 05/44] mfd: as3722: Drop reference to pm_power_off from
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On 10/07/14 00:28, Guenter Roeck wrote:
> Devicetree bindings are supposed to be operating system independent
> and should thus not describe how a specific functionality is implemented
> in Linux.

So your argument is that linux/Documentation/devicetree/bindings should
not be specific to Linux. Merely hosted in the Linux kernel source
repository.

Well that's certainly a point of view.

Rob

From - Thu Nov 08 21:10:49 2018
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: Re: [PATCH 29/44] staging: nvec: Register with kernel poweroff
 handler
Date: Tue, 7 Oct 2014 09:23:06 -0700
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	Julian Andres Klod
To: Guenter Roeck <linux@roeck-us.net>
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On Mon, Oct 06, 2014 at 10:28:31PM -0700, Guenter Roeck wrote:
> Register with kernel poweroff handler instead of setting pm_power_off
> directly. Register with default priority value of 128 since we don't know
> any better.
> 
> Cc: Julian Andres Klode <jak@jak-linux.org>
> Cc: Marc Dietrich <marvin24@gmx.de>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  drivers/staging/nvec/nvec.c | 24 +++++++++++++++---------
>  drivers/staging/nvec/nvec.h |  2 ++
>  2 files changed, 17 insertions(+), 9 deletions(-)

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

From - Thu Nov 08 21:10:49 2018
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Subject: Re: [PATCH 05/44] mfd: as3722: Drop reference to pm_power_off from
 devicetree bindings
Date: Tue, 7 Oct 2014 09:31:31 -0700
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	Rob Herring <robh+
To: Rob Landley <rob@landley.net>
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On Tue, Oct 07, 2014 at 11:21:11AM -0500, Rob Landley wrote:
> On 10/07/14 00:28, Guenter Roeck wrote:
> > Devicetree bindings are supposed to be operating system independent
> > and should thus not describe how a specific functionality is implemented
> > in Linux.
> 
> So your argument is that linux/Documentation/devicetree/bindings should
> not be specific to Linux. Merely hosted in the Linux kernel source
> repository.
> 
> Well that's certainly a point of view.
> 
Not specifically my argument, really, and nothing new either. But, yes, I do
think that devicetree bindings descriptions should not include implementation
details, especially since those may change over time (as is the case here).

Thanks,
Guenter

From - Thu Nov 08 21:10:49 2018
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Newsgroups: gmane.linux.ports.tegra,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: Re: [PATCH 05/44] mfd: as3722: Drop reference to pm_power_off from
 devicetree bindings
Date: Tue, 7 Oct 2014 17:58:35 +0100
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On Tue, Oct 07, 2014 at 05:21:11PM +0100, Rob Landley wrote:
> On 10/07/14 00:28, Guenter Roeck wrote:
> > Devicetree bindings are supposed to be operating system independent
> > and should thus not describe how a specific functionality is implemented
> > in Linux.
> 
> So your argument is that linux/Documentation/devicetree/bindings should
> not be specific to Linux. Merely hosted in the Linux kernel source
> repository.

Precisely. If nothing else as a general guideline this keeps us honest,
and prevents us from embedding arbitrary implementation details into
bidnings that cause pain later when we want to change things at either
end.

There are already otehr users of these bindings, so we can't really
claim they're strictly Linux-specific anyhow.

> Well that's certainly a point of view.

As far as I am aware, it's the point of view shared by the device tree
maintainers, and it's been that way for a while.

I don't really follow your concern. For one thing were this followed
more strictly this file wouldn't need patching at all to correct for
this Linux-internal rework...

Thanks,
Mark.

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Subject: Re: [PATCH 05/44] mfd: as3722: Drop reference to pm_power_off from
 devicetree bindings
Date: Tue, 07 Oct 2014 09:59:29 -0700
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To: Guenter Roeck <linux@roeck-us.net>, Rob Landley <rob@landley.net>
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On 10/07/2014 09:31 AM, Guenter Roeck wrote:
> On Tue, Oct 07, 2014 at 11:21:11AM -0500, Rob Landley wrote:
>> On 10/07/14 00:28, Guenter Roeck wrote:
>>> Devicetree bindings are supposed to be operating system independent
>>> and should thus not describe how a specific functionality is implemented
>>> in Linux.
>>
>> So your argument is that linux/Documentation/devicetree/bindings should
>> not be specific to Linux. Merely hosted in the Linux kernel source
>> repository.
>>
>> Well that's certainly a point of view.
>>
> Not specifically my argument, really, and nothing new either. But, yes, I do
> think that devicetree bindings descriptions should not include implementation
> details, especially since those may change over time (as is the case here).
>

I fully agree.

Many device trees come from outside the kernel (i.e. they are supplied 
by the system boot environment).  Obviously these device trees cannot be 
changed at the whim of kernel developers, *and* it is perfectly 
reasonable to think that software other than the Linux kernel will run 
on this type of system too.

So yes, it is really true, device trees are not a Linux kernel private 
implementation detail, they are really an external ABI that, although 
documented in the kernel source tree, cannot be changed in incompatible 
ways as time progresses.

David Daney

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Subject: Re: [PATCH 05/44] mfd: as3722: Drop reference to pm_power_off from
 devicetree bindings
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On 10/07/14 11:59, David Daney wrote:
> On 10/07/2014 09:31 AM, Guenter Roeck wrote:
>> On Tue, Oct 07, 2014 at 11:21:11AM -0500, Rob Landley wrote:
>>> On 10/07/14 00:28, Guenter Roeck wrote:
>>>> Devicetree bindings are supposed to be operating system independent
>>>> and should thus not describe how a specific functionality is
>>>> implemented
>>>> in Linux.
>>>
>>> So your argument is that linux/Documentation/devicetree/bindings should
>>> not be specific to Linux. Merely hosted in the Linux kernel source
>>> repository.
>>>
>>> Well that's certainly a point of view.
>>>
>> Not specifically my argument, really, and nothing new either. But,
>> yes, I do
>> think that devicetree bindings descriptions should not include
>> implementation
>> details, especially since those may change over time (as is the case
>> here).
>>
> 
> I fully agree.
> 
> Many device trees come from outside the kernel (i.e. they are supplied
> by the system boot environment).  Obviously these device trees cannot be
> changed at the whim of kernel developers, *and* it is perfectly
> reasonable to think that software other than the Linux kernel will run
> on this type of system too.
> 
> So yes, it is really true, device trees are not a Linux kernel private
> implementation detail, they are really an external ABI that, although
> documented in the kernel source tree, cannot be changed in incompatible
> ways as time progresses.

Ah. Existing thing with backstory among the in-crowd, so I'll assume
"git subtree" was previously suggested and you had that discussion
already and decided against it.

Carry on,

Rob
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From: Helge Deller <deller@gmx.de>
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Subject: systemd on hppa and number of free RT signals
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This is a multi-part message in MIME format.
--------------060109070908020206020206
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Hello everyone,

I've just had a successful boot on hppa with systemd :-)
The bootlog is attached.

As already discussed here:
http://article.gmane.org/gmane.linux.ports.parisc/5278
we don't have enough RT signals for systemd, which requests "SIGRTMIN+29" which is > 64 (SIGRTMAX).
Since systemd gets more and more important (e.g. KDE now seems to require systemd) we should try to find a solution.

The attached patches to Linux kernel and glibc shuffles around some signals, so that we end up with
#define __SIGRTMIN	32
instead of
#define __SIGRTMIN	37

I do know that this changes the ABI and introduces a binary incompatibly.
Nevertheless, my testing with the new kernel and glibc didn't showed any obvious problems, which means that I could install either of those and the system didn't showed problems even after reboots.
Additionally, given the fact that we have very little users and live in debian/gentoo unstable would IMHO justify such an incompatible change. Even HP-UX support was dropped a few months back...
And we could easily rebuild packages like strace, gdb and such...

The other option would be to increase NSIG in kernel from 64 to 128 or higher.
I did tried to come up with kernel patches for this now for a few weeks, but ended up with the recognition, that this would require to duplicate nearly all of Linux kernel signal handling and which would most likely introduce new bugs.

What's your opinion on this?
I will provide prebuilt debian packages with those patches for kernel and glibc tomorrow for download, so that people may test themselves...

Helge

--------------060109070908020206020206
Content-Type: text/x-patch;
 name="kernel.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="kernel.patch"

diff --git a/arch/parisc/include/uapi/asm/signal.h b/arch/parisc/include/uapi/asm/signal.h
index f5645d6..10df707 100644
--- a/arch/parisc/include/uapi/asm/signal.h
+++ b/arch/parisc/include/uapi/asm/signal.h
@@ -8,12 +8,12 @@
 #define SIGTRAP		 5
 #define SIGABRT		 6
 #define SIGIOT		 6
-#define SIGEMT		 7
+#define SIGSTKFLT	 7
 #define SIGFPE		 8
 #define SIGKILL		 9
 #define SIGBUS		10
 #define SIGSEGV		11
-#define SIGSYS		12 /* Linux doesn't use this */
+#define SIGXCPU		12
 #define SIGPIPE		13
 #define SIGALRM		14
 #define SIGTERM		15
@@ -32,16 +32,12 @@
 #define SIGTTIN		27
 #define SIGTTOU		28
 #define SIGURG		29
-#define SIGLOST		30 /* Linux doesn't use this either */
-#define	SIGUNUSED	31
-#define SIGRESERVE	SIGUNUSED
-
-#define SIGXCPU		33
-#define SIGXFSZ		34
-#define SIGSTKFLT	36
+#define SIGXFSZ		30
+#define SIGUNUSED	31
+#define SIGSYS		31 /* Linux doesn't use this */
 
 /* These should not be considered constants from userland.  */
-#define SIGRTMIN	37
+#define SIGRTMIN	32
 #define SIGRTMAX	_NSIG /* it's 44 under HP/UX */
 
 /*

--------------060109070908020206020206
Content-Type: text/x-patch;
 name="glibc.signal.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="glibc.signal.patch"

diff -up ./ports/sysdeps/unix/sysv/linux/hppa/bits/signum.h.org ./ports/sysdeps/unix/sysv/linux/hppa/bits/signum.h
--- ./ports/sysdeps/unix/sysv/linux/hppa/bits/signum.h.org	2014-10-06 10:58:34.071963059 +0200
+++ ./ports/sysdeps/unix/sysv/linux/hppa/bits/signum.h	2014-10-06 11:02:48.879949179 +0200
@@ -35,13 +35,13 @@
 #define	SIGILL		4	/* Illegal instruction (ANSI).  */
 #define	SIGTRAP		5	/* Trace trap (POSIX).  */
 #define	SIGABRT		6	/* Abort (ANSI).  */
+#define	SIGSTKFLT	7	/* Stack fault.  */
 #define	SIGIOT		6	/* IOT trap (4.2 BSD).  */
-#define	SIGEMT		7
 #define	SIGFPE		8	/* Floating-point exception (ANSI).  */
 #define	SIGKILL		9	/* Kill, unblockable (POSIX).  */
 #define	SIGBUS		10	/* BUS error (4.2 BSD).  */
 #define	SIGSEGV		11	/* Segmentation violation (ANSI).  */
-#define SIGSYS		12	/* Bad system call.  */
+#define	SIGXCPU		12	/* CPU limit exceeded (4.2 BSD).  */
 #define	SIGPIPE		13	/* Broken pipe (POSIX).  */
 #define	SIGALRM		14	/* Alarm clock (POSIX).  */
 #define	SIGTERM		15	/* Termination (ANSI).  */
@@ -61,11 +61,9 @@
 #define	SIGTTIN		27	/* Background read from tty (POSIX).  */
 #define	SIGTTOU		28	/* Background write to tty (POSIX).  */
 #define	SIGURG		29	/* Urgent condition on socket (4.2 BSD).  */
-#define SIGLOST		30	/* Operating System Has Lost (HP/UX). */
+#define	SIGXFSZ		30	/* File size limit exceeded (4.2 BSD).  */
+#define SIGSYS		31	/* Bad system call.  */
 #define SIGUNUSED	31
-#define	SIGXCPU		33	/* CPU limit exceeded (4.2 BSD).  */
-#define	SIGXFSZ		34	/* File size limit exceeded (4.2 BSD).  */
-#define	SIGSTKFLT	36	/* Stack fault.  */
 
 #define	_NSIG		65	/* Biggest signal number + 1
 				   (including real-time signals).  */
@@ -75,7 +73,7 @@
 
 /* These are the hard limits of the kernel.  These values should not be
    used directly at user level.  */
-#define __SIGRTMIN	37
+#define __SIGRTMIN	32	/* Kernel > 3.17 */
 #define __SIGRTMAX	(_NSIG - 1)
 
 #endif	/* <signal.h> included.  */

--------------060109070908020206020206
Content-Type: text/x-log;
 name="boot.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="boot.log"

Main Menu: Enter command > bo fwscsi.4
Interact with IPL (Y, N, Q)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 0


HARD Booted.
palo ipl 1.95 root@mkhppa3 Thu Apr 17 20:15:17 UTC 2014
Skipping extended partition 6 - beyond reach of IPL

Partition Start(MB) End(MB) Id Type
1               2      33   f0 Palo
2              34     157   83 ext2
5             159   16673   83 ext2

PALO(F0) partition contains:
    0/vmlinux64 11433124(0) bytes @ 0x140000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).Current command line:
2/vmlinux root=/dev/sdb5 rootfstype=ext4 initrd=2/initrd.img HOME=/ panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102
 0: 2/vmlinux
 1: root=/dev/sdb5
 2: rootfstype=ext4
 3: initrd=2/initrd.img
 4: HOME=/
 5: panic_timeout=60
 6: panic=-1
 7: console=ttyS0
 8: TERM=vt102

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
'x'    reset and reboot machine
? b

Command line for kernel: 'root=/dev/sdb5 rootfstype=ext4 HOME=/ panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
Selected ramdisk: /initrd.img from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 228528 mediaptr 0x1000
Segment 1 load 00138000 size 9420920 mediaptr 0x39000
Loading ramdisk 16365131 bytes @ 3f053000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 3.16-2-parisc64-smp (debian-kernel@lists.debian.org) (gcc version 4.8.3 (GCC) ) #1 SMP Debian 3.16.3-2 (2014-10-07)
[    0.000000] unwind_init: start = 0x40877600, end = 0x408bd670, entries = 17927
[    0.000000] FP[0] enabled: Rev 1 Model 16
[    0.000000] The 64-bit Kernel has started...
[    0.000000] Default page size is 4KB.
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: System Map.
[    0.000000] model 00005bd0 00000491 00000000 00000002 782482ee 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000203
[    0.000000] CPUID vers 17 rev 7 (0x00000227)
[    0.000000] capabilities 0x3
[    0.000000] model 9000/785/J5000
[    0.000000] Total Memory: 2048 MB
[    0.000000] initrd: 7f053000-7ffee64b
[    0.000000] initrd: reserving 3f053000-3ffee64b (mem_max 80000000)
[    0.000000] LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
[    0.000000] PERCPU: Embedded 14 pages/cpu @0000000042964000 s27008 r8192 d22144 u57344
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 517120
[    0.000000] Kernel command line: root=/dev/sdb5 rootfstype=ext4 HOME=/ panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[    0.000000] Sorting __ex_table...
[    0.000000] Memory: 2035292K/2097152K available (5508K kernel code, 1817K rwdata, 1094K rodata, 368K init, 636K bss, 61860K reserved)
[    0.000000] virtual kernel memory layout:
    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    0.000000]     memory  : 0x0000000040000000 - 0x00000000c0000000   (2048 MB)
    0.000000]       .init : 0x0000000040100000 - 0x000000004015c000   ( 368 kB)
    0.000000]       .data : 0x00000000406bd000 - 0x0000000040994fb0   (2911 kB)
    0.000000]       .text : 0x000000004015c000 - 0x00000000406bd000   (5508 kB)
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  CONFIG_RCU_FANOUT set to non-default value of 32
[    0.000000] NR_IRQS:128
[    0.000000] Console: colour dummy device 160x64
[    0.060000] Calibrating delay loop... 872.44 BogoMIPS (lpj=1744896)
[    0.160000] pid_max: default: 32768 minimum: 301
[    0.224000] Security Framework initialized
[    0.276000] AppArmor: AppArmor disabled by boot time parameter
[    0.352000] Yama: disabled by default; enable with sysctl kernel.yama.*
[    0.440000] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
[    0.528000] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
[    0.624000] Initializing cgroup subsys memory
[    0.680000] Initializing cgroup subsys devices
[    0.740000] Initializing cgroup subsys freezer
[    0.800000] Initializing cgroup subsys net_cls
[    0.856000] Initializing cgroup subsys blkio
[    0.912000] Initializing cgroup subsys perf_event
[    0.976000] Initializing cgroup subsys net_prio
[    1.040000] Brought up 1 CPUs
[    1.080000] devtmpfs: initialized
[    1.128000] NET: Registered protocol family 16
[    1.188000] EISA bus registered
[    1.228000] Searching for devices...
[    1.520000] Found devices:
[    1.556000] 1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
[    1.664000] 2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
[    1.772000] 3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
[    1.876000] 4. Elroy PCI Bridge at 0xfffffffffed34000 [10/2] { 13, 0x0, 0x782, 0x0000a }
[    1.984000] 5. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
[    2.092000] 6. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
[    2.196000] 7. Forte W 2-way at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5bd, 0x00004 }
[    2.296000] 8. Forte W 2-way at 0xfffffffffffa2000 [34] { 0, 0x0, 0x5bd, 0x00004 }
[    2.396000] 9. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x088, 0x00009 }
[    2.488000] Enabling regular chassis codes support v0.05
[    2.680000] Releasing cpu 1 now, hpa=fffffffffffa2000
[    2.764000] FP[1] enabled: Rev 1 Model 16
[    2.764000] CPU(s): 2 out of 2 PA8500 (PCX-W) at 440.000000 MHz online
[    2.908000] Setting cache flush threshold to 100000 (2 CPUs online)
[    3.016000] SBA found Astro 2.1 at 0xfffffffffed00000
[    3.084000] Elroy version TR2.1 (0x2) found at 0xfffffffffed30000
[    3.164000] LBA 10:0: PCI host bridge to bus 0000:00
[    3.232000] pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
[    3.312000] pci_bus 0000:00: root bus resource [mem 0xfffffffff4000000-0xfffffffff47fffff] (bus address [0xf4000000-0xf47fffff])
[    3.464000] pci_bus 0000:00: root bus resource [bus 00]
[    3.536000] PCI: Enabled native mode for NS87415 (pif=0x8f)
[    3.616000] Elroy version TR2.1 (0x2) found at 0xfffffffffed32000
[    3.696000] LBA 10:1: PCI host bridge to bus 0000:01
[    3.760000] pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
[    3.880000] pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff])
[    4.032000] pci_bus 0000:01: root bus resource [bus 01]
[    4.100000] Elroy version TR2.1 (0x2) found at 0xfffffffffed34000
[    4.180000] LBA 10:2: PCI host bridge to bus 0000:02
[    4.248000] pci_bus 0000:02: root bus resource [io  0x24000-0x25fff] (bus address [0x4000-0x5fff])
[    4.364000] pci_bus 0000:02: root bus resource [mem 0xfffffffff5000000-0xfffffffff57fffff] (bus address [0xf5000000-0xf57fffff])
[    4.516000] pci_bus 0000:02: root bus resource [bus 02]
[    4.588000] Elroy version TR2.1 (0x2) found at 0xfffffffffed38000
[    4.668000] LBA 10:4: PCI host bridge to bus 0000:03
[    4.732000] pci_bus 0000:03: root bus resource [io  0x38000-0x39fff] (bus address [0x8000-0x9fff])
[    4.852000] pci_bus 0000:03: root bus resource [mem 0xfffffffff6000000-0xfffffffff67fffff] (bus address [0xf6000000-0xf67fffff])
[    5.004000] pci_bus 0000:03: root bus resource [bus 03]
[    5.072000] Elroy version TR2.1 (0x2) found at 0xfffffffffed3c000
[    5.152000] LBA 10:6: PCI host bridge to bus 0000:04
[    5.220000] pci_bus 0000:04: root bus resource [io  0x4c000-0x4dfff] (bus address [0xc000-0xdfff])
[    5.336000] pci_bus 0000:04: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff])
[    5.488000] pci_bus 0000:04: root bus resource [mem 0xfffffffff7000000-0xfffffffff77fffff] (bus address [0xf7000000-0xf77fffff])
[    5.640000] pci_bus 0000:04: root bus resource [bus 04]
[    5.712000] iosapic: hpa not registered for 0000:04:07.0
[    5.792000] powersw: Soft power switch at 0xfffffff0f0400804 enabled.
[    5.892000] vgaarb: loaded
[    5.944000] NET: Registered protocol family 2
[    6.004000] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
[    6.100000] TCP bind hash table entries: 16384 (order: 6, 262144 bytes)
[    6.188000] TCP: Hash tables configured (established 16384 bind 16384)
[    6.276000] TCP: reno registered
[    6.316000] UDP hash table entries: 1024 (order: 3, 32768 bytes)
[    6.396000] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes)
[    6.480000] NET: Registered protocol family 1
[    6.540000] SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 68)
[    6.632000] SuperIO: Serial port 1 at 0x3f8
[    6.688000] SuperIO: Serial port 2 at 0x2f8
[    6.744000] SuperIO: Parallel port at 0x378
[    6.796000] SuperIO: Floppy controller at 0x3f0
[    6.856000] SuperIO: ACPI at 0x7e0
[    6.904000] SuperIO: USB regulator enabled
[    7.012000] Unpacking initramfs...
[    9.124000] Freeing initrd memory: 15980K (000000007f053000 - 000000007ffee000)
[    9.220000] Enabling PDC chassis warnings support v0.05
[    9.288000] Performance monitoring counters enabled for Forte W 2-way
[    9.376000] futex hash table entries: 2048 (order: 5, 131072 bytes)
[    9.460000] audit: initializing netlink subsys (disabled)
[    9.528000] audit: type=2000 audit(1412708413.528:1): initialized
[    9.612000] zbud: loaded
[    9.648000] VFS: Disk quotas dquot_6.5.2
[    9.700000] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    9.784000] msgmni has been set to 4006
[    9.840000] alg: No test for stdrng (krng)
[    9.892000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[    9.992000] io scheduler noop registered
[   10.040000] io scheduler deadline registered
[   10.100000] io scheduler cfq registered (default)
[   10.164000] PDC Stable Storage facility v0.30
[   10.532000] STI GSC/PCI core graphics driver Version 0.9b
[   10.604000] sti 0000:04:07.0: enabling SERR and PARITY (0002 -> 0142)
[   10.688000] STI PCI graphic ROM found at fffffffff7000000 (64 kB), fb at fffffffffa000000 (32 MB)
[   10.876000] STI ROM supports 32 bit firmware functions.
[   10.948000] STI selected 8x16 framebuffer font VGA8x16 for sticon
[   11.028000]     id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
[   11.108000]     graphics card name: PCI_GRAFFITIX800
[   11.172000] sticon: Initializing STI text console.
[   11.604000] Console: switching to colour STI console 100x37
[   12.088000] Console: switching to colour frame buffer device 100x37
[   12.212000] fb0: stifb 800x600-8 frame buffer device, PCI_GRAFFITIX800, id: 2d08c0a7, mmio: 0xfffffffffa100000
[   12.344000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[   12.424000] serial8250: ttyS0 at I/O 0x3f8 (irq = 3, base_baud = 115200) is a 16550A
[   12.528000] console [ttyS0] enabled
[   12.528000] console [ttyS0] enabled
[   12.616000] bootconsole [ttyB0] disabled
[   12.616000] bootconsole [ttyB0] disabled
[   12.712000] serial8250: ttyS1 at I/O 0x2f8 (irq = 4, base_baud = 115200) is a 16550A
[   12.808000] Linux agpgart interface v0.103
[   12.856000] quicksilver: No Pluto found, so no AGPGART for you.
[   12.928000] [drm] Initialized drm 1.1.0 20060810
[   12.984000] mousedev: PS/2 mouse device common for all mice
[   13.052000] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[   13.140000] ledtrig-cpu: registered to indicate activity on CPUs
[   13.212000] TCP: cubic registered
[   13.252000] NET: Registered protocol family 10
[   13.308000] mip6: Mobile IPv6
[   13.344000] NET: Registered protocol family 17
[   13.396000] mpls_gso: MPLS GSO support
[   13.440000] registered taskstats version 1
[   13.496000] rtc-generic rtc-generic: setting system clock to 2014-10-07 19:00:18 UTC (1412708418)
[   13.604000] Freeing unused kernel memory: 368K (0000000040100000 - 000000004015c000)
Loading, please wait...
[   13.948000] systemd-udevd[59]: starting version 215
[   14.012000] random: systemd-udevd urandom read with 72 bits of entropy available
[   14.232000] tulip: Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
[   14.380000] SCSI subsystem initialized
[   14.436000] tulip0: no phy info, aborting mtable build
[   14.500000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1
[   14.704000] net eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff4008000, 00:10:83:cf:f8:47, IRQ 66
[   14.864000] usbcore: registered new interface driver usbfs
[   14.932000] usbcore: registered new interface driver hub
[   14.996000] usbcore: registered new device driver usb
[   15.076000] sym0: <896> rev 0x4 at pci 0000:00:0f.0 irq 69
[   15.144000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[   15.144000] sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
[   15.144000] sym0: SCSI BUS has been reset.
[   15.144000] scsi0 : sym-2.2.3
[   15.384000] sym0: SCSI BUS mode change from SE to SE.
[   15.384000] sym0: SCSI BUS has been reset.
[   15.504000] scsi1 : pata_ns87415
[   15.548000] scsi2 : pata_ns87415
[   15.588000] ata1: PATA max MWDMA2 cmd 0xf00 ctl 0xe00 bmdma 0xa00 irq 7
[   15.668000] ata2: PATA max MWDMA2 cmd 0xd00 ctl 0xb00 bmdma 0xa08 irq 7
[   15.756000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[   15.836000] ehci-pci: EHCI PCI platform driver
[   15.900000] ohci-pci: OHCI PCI platform driver
[   15.984000] sym1: <896> rev 0x4 at pci 0000:00:0f.1 irq 69
[   16.052000] sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
[   16.132000] sym1: SCSI BUS has been reset.
[   16.188000] sym1: SCSI BUS mode change from SE to SE.
[   16.188000] ata1.00: ATAPI: FX4830T, R02D, max UDMA/33
[   16.188000] sym1: SCSI BUS has been reset.
[   16.360000] scsi3 : sym-2.2.3
[   16.396000] ata1.00: configured for MWDMA2
[   16.448000] ohci-pci 0000:00:0e.2: OHCI PCI host controller
[   16.516000] ohci-pci 0000:00:0e.2: new USB bus registered, assigned bus number 1
[   16.604000] ohci-pci 0000:00:0e.2: irq 1, io mem 0xfffffffff4007000
[   16.736000] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
[   16.816000] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   16.904000] usb usb1: Product: OHCI PCI host controller
[   16.964000] usb usb1: Manufacturer: Linux 3.16-2-parisc64-smp ohci_hcd
[   17.044000] usb usb1: SerialNumber: 0000:00:0e.2
[   17.100000] hub 1-0:1.0: USB hub found
[   17.144000] hub 1-0:1.0: 3 ports detected
[   20.600000] scsi 3:0:3:0: Direct-Access     SEAGATE  ST118273WC       HP14 PQ: 0 ANSI: 2
[   20.696000] scsi target3:0:3: tagged command queuing enabled, command queue depth 16.
[   20.792000] scsi: waiting for bus probes to complete ...
[   20.792000] scsi target3:0:3: Beginning Domain Validation
[   20.804000] scsi target3:0:3: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
[   20.812000] scsi target3:0:3: Domain Validation skipping write tests
[   20.812000] scsi target3:0:3: Ending Domain Validation
[   20.820000] scsi 3:0:4:0: Direct-Access     SEAGATE  ST118273WC       HP14 PQ: 0 ANSI: 2
[   20.820000] scsi target3:0:4: tagged command queuing enabled, command queue depth 16.
[   20.820000] scsi target3:0:4: Beginning Domain Validation
[   20.832000] scsi target3:0:4: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
[   20.840000] scsi target3:0:4: Domain Validation skipping write tests
[   20.840000] scsi target3:0:4: Ending Domain Validation
[   20.844000] scsi 3:0:5:0: Direct-Access     QUANTUM  ATLAS10K-18LVD   HP06 PQ: 0 ANSI: 3
[   20.844000] scsi target3:0:5: tagged command queuing enabled, command queue depth 16.
[   20.844000] scsi target3:0:5: Beginning Domain Validation
[   20.848000] scsi target3:0:5: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 31)
[   20.848000] scsi target3:0:5: Domain Validation skipping write tests
[   20.852000] scsi target3:0:5: Ending Domain Validation
[   20.856000] scsi 3:0:6:0: Direct-Access     QUANTUM  ATLAS10K-18LVD   HP06 PQ: 0 ANSI: 3
[   20.856000] scsi target3:0:6: tagged command queuing enabled, command queue depth 16.
[   20.856000] scsi target3:0:6: Beginning Domain Validation
[   20.860000] scsi target3:0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 31)
[   20.860000] scsi target3:0:6: Domain Validation skipping write tests
[   20.860000] scsi target3:0:6: Ending Domain Validation
[   22.584000] timer_interrupt(CPU 1): delayed! cycles 2EF0812F rem EBED1  next/now 1082CF096F7/1082CE1D826
[   22.676000] random: nonblocking pool is initialized
[   23.284000] scsi 1:0:0:0: CD-ROM            MITSUMI  CD-ROM FX4830T!B R02D PQ: 0 ANSI: 5
[   23.428000] sd 3:0:3:0: [sda] 35566480 512-byte logical blocks: (18.2 GB/16.9 GiB)
[   23.428000] sd 3:0:5:0: [sdc] 35566480 512-byte logical blocks: (18.2 GB/16.9 GiB)
[   23.428000] sd 3:0:6:0: [sdd] 35566480 512-byte logical blocks: (18.2 GB/16.9 GiB)
[   23.432000] sd 3:0:5:0: [sdc] Write Protect is off
[   23.432000] sd 3:0:6:0: [sdd] Write Protect is off
[   23.432000] sd 3:0:5:0: [sdc] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   23.432000] sd 3:0:4:0: [sdb] 35566480 512-byte logical blocks: (18.2 GB/16.9 GiB)
[   23.436000] sd 3:0:6:0: [sdd] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   23.436000] sd 3:0:4:0: [sdb] Write Protect is off
[   23.440000] sd 3:0:4:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   24.292000] sd 3:0:3:0: [sda] Write Protect is off
[   24.348000]  sdd: sdd1 sdd2 sdd3 sdd4 < sdd5 >
[   24.348000]  sdc: unknown partition table
[   24.456000] sd 3:0:3:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   24.460000] sd 3:0:6:0: [sdd] Attached SCSI disk
[   24.460000] sd 3:0:5:0: [sdc] Attached SCSI disk
[   24.484000]  sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 >
[   24.740000] sd 3:0:4:0: [sdb] Attached SCSI disk
[   24.796000]  sda: sda1 sda2 sda3
[   24.844000] sd 3:0:3:0: [sda] Attached SCSI disk
[   24.928000] sd 3:0:3:0: Attached scsi generic sg0 type 0
[   25.004000] sd 3:0:4:0: Attached scsi generic sg1 type 0
[   25.076000] sd 3:0:5:0: Attached scsi generic sg2 type 0
[   25.152000] sd 3:0:6:0: Attached scsi generic sg3 type 0
[   25.216000] scsi 1:0:0:0: Attached scsi generic sg4 type 5
[   25.320000] sr0: scsi3-mmc drive: 48x/48x cd/rw xa/form2 cdda tray
[   25.392000] cdrom: Uniform CD-ROM driver Revision: 3.20
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... done.
Begin: Checking root file system ... fsck from util-linux 2.20.1
/dev/sdb5: recovering journal
/dev/sdb5: clean, 41430/1058720 files, 525252/4227840 blocks
done.
[   30.516000] EXT4-fs (sdb5): mounted filesystem with ordered data mode. Opts: (null)
done.
Begin: Running /scripts/local-bottom ... done.
Begin: Running /scripts/init-bottom ... done.
[   32.144000] systemd[1]: systemd 215 running in system mode. (+PAM +AUDIT +SELINUX +IMA +SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ -SECCOMP -APPARMOR)
[   32.304000] systemd[1]: Detected architecture 'parisc64'.

Welcome to Debian GNU/Linux jessie/sid!

[   32.804000] systemd[1]: Inserted module 'autofs4'
[   32.888000] systemd[1]: Set hostname to <ls3017>.
[   34.548000] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory.
[   34.728000] systemd[1]: Starting Forward Password Requests to Wall Directory Watch.
[   34.824000] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[   34.912000] systemd[1]: Expecting device dev-ttyS0.device...
         Expecting device dev-ttyS0.device...
[   35.040000] systemd[1]: Starting Remote File Systems (Pre).
[  OK  ] Reached target Remote File Systems (Pre).
[   35.176000] systemd[1]: Reached target Remote File Systems (Pre).
[   35.252000] systemd[1]: Starting Arbitrary Executable File Formats File System Automount Point.
[  OK  ] Set up automount Arbitrary Executable File Formats F...utomount Point.
[   35.456000] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[   35.568000] systemd[1]: Starting Encrypted Volumes.
[  OK  ] Reached target Encrypted Volumes.
[   35.688000] systemd[1]: Reached target Encrypted Volumes.
[   35.752000] systemd[1]: Starting Dispatch Password Requests to Console Directory Watch.
[   35.852000] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[   35.944000] systemd[1]: Starting Paths.
[  OK  ] Reached target Paths.
[   36.040000] systemd[1]: Reached target Paths.
[   36.092000] systemd[1]: Expecting device dev-disk-by\x2duuid-e9c4c389\x2d6b1f\x2d47c4\x2dbc47\x2d30cb05380d54.device...
         Expecting device dev-disk-by\x2duuid-e9c4c389\x2d6b1...80d54.device...
[   36.316000] systemd[1]: Expecting device dev-disk-by\x2duuid-c393bfeb\x2d0c0a\x2d4b7d\x2da529\x2d21580d653d23.device...
         Expecting device dev-disk-by\x2duuid-c393bfeb\x2d0c0...53d23.device...
[   36.536000] systemd[1]: Starting Root Slice.
[  OK  ] Created slice Root Slice.
[   36.712000] systemd[1]: Created slice Root Slice.
[   36.768000] systemd[1]: Starting Delayed Shutdown Socket.
[  OK  ] Listening on Delayed Shutdown Socket.
[   36.900000] systemd[1]: Listening on Delayed Shutdown Socket.
[   36.968000] systemd[1]: Starting /dev/initctl Compatibility Named Pipe.
[  OK  ] Listening on /dev/initctl Compatibility Named Pipe.
[   37.132000] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[   37.216000] systemd[1]: Starting Journal Socket (/dev/log).
[  OK  ] Listening on Journal Socket (/dev/log).
[   37.352000] systemd[1]: Listening on Journal Socket (/dev/log).
[   37.424000] systemd[1]: Starting Syslog Socket.
[  OK  ] Listening on Syslog Socket.
[   37.536000] systemd[1]: Listening on Syslog Socket.
[   37.596000] systemd[1]: Starting udev Control Socket.
[  OK  ] Listening on udev Control Socket.
[   37.716000] systemd[1]: Listening on udev Control Socket.
[   37.780000] systemd[1]: Starting udev Kernel Socket.
[  OK  ] Listening on udev Kernel Socket.
[   37.900000] systemd[1]: Listening on udev Kernel Socket.
[   37.964000] systemd[1]: Starting User and Session Slice.
[  OK  ] Created slice User and Session Slice.
[   38.096000] systemd[1]: Created slice User and Session Slice.
[   38.168000] systemd[1]: Starting Journal Socket.
[  OK  ] Listening on Journal Socket.
[   38.280000] systemd[1]: Listening on Journal Socket.
[   38.340000] systemd[1]: Starting System Slice.
[  OK  ] Created slice System Slice.
[   38.448000] systemd[1]: Created slice System Slice.
[   38.508000] systemd[1]: Starting File System Check on Root Device...
         Starting File System Check on Root Device...
[   38.652000] systemd[1]: Starting system-systemd\x2dfsck.slice.
[  OK  ] Created slice system-systemd\x2dfsck.slice.
[   38.800000] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[   38.876000] systemd[1]: Starting udev Coldplug all Devices...
         Startin[   38.956000] systemd[1]: Mounting POSIX Message Queue File System...
g udev Coldplug all Devices...
         Mounting POSIX Message Queue File System...
[   39.412000] systemd[1]: Started Set Up Additional Binary Formats.
[   39.492000] systemd[1]: Starting Create list of required static device nodes for the current kernel...
         Startin[   39.620000] systemd[1]: Mounting Debug File System...
g Create list of[   39.692000] systemd[1]: Mounted Huge Pages File System.
 required static device nodes...rrent kernel...
         Mounti[   39.812000] systemd[1]: Starting Load Kernel Modules...
ng Debug File Sy[   39.900000] systemd[1]: Starting system-getty.slice.
stem...
       [   39.972000] systemd[1]: Created slice system-getty.slice.
  Starting Load [   40.048000] systemd[1]: Starting system-serial\x2dgetty.slice.
Kernel Modules..[   40.140000] systemd[1]: Created slice system-serial\x2dgetty.slice.
.
[  OK    40.228000] systemd[1]: Starting Journal Service...
[0m] Created slice system-getty.[   40.320000] systemd[1]: Started Journal Service.                                                                                     
slice.                                                                                                                                                                  
[  OK  ] Created slice system-serial\x2dgetty.slice.
         Starting Journal Service...
[  OK  ] Started Journal Service.
[  OK  ] Reached target Slices.
[  OK  ] Mounted Debug File System.
[  OK  ] Mounted POSIX Message Queue File System.
[  OK  ] Started udev Coldplug all Devices.
[  OK  ] Started Create list of required static device nodes ...current kernel.
         Starting Create Static Device Nodes in /dev...
[  OK  ] Started Load Kernel Modules.
         Starting Apply Kernel Variables...
[  OK  ] Started Apply Kernel Variables.
[   41.580000] systemd-fsck[142]: /dev/sdb5: clean, 41430/1058720 files, 525252/4227840 blocks
[  OK  ] Started Create Static Device Nodes in /dev.
[  OK  ] Started File System Check on Root Device.
         Starting Remount Root and Kernel File Systems...
         Starting udev Kernel Device Manager...
[   41.996000] EXT4-fs (sdb5): re-mounted. Opts: errors=remount-ro
[  OK  ] Started Remount Root and Kerne[   42.128000] systemd-udevd[165]: starting version 215
l File Systems.
[  OK  ] Started udev Kernel Device Manager.
         Starting Copy rules generated while the root was ro...
         Starting Load/Save Random Seed...
[  OK  ] Reached target Local File Systems (Pre).
[  OK  ] Started Copy rules generated while the root was ro.
[  OK  ] Started Load/Save Random Seed.
[  OK  ] Found device /dev/ttyS0.
[  OK  ] Found device ST118273WC 6.
         Activating swap /dev/disk/by-uuid/e9c4c389-6b1f-47c4...30cb05380d54...
[  OK  ] Found device S[   44.560000] Adding 708604k swap on /dev/sdb6.  Priority:-1 extents:1 across:708604k FS
T118273WC 2.
[  OK  ] Activated swap /dev/disk/by-uuid/e9c4c389-6b1f-47c4-bc47-30cb05380d54.
[  OK  ] Created slice system-ifup.slice.
[  OK  ] Reached target Swap.
         Starting File System Check on /dev/disk/by-uuid/c393...21580d653d23...
[  OK  ] Reached target Sound Card.
[   45.408000] systemd-fsck[201]: /dev/sdb2 was not cleanly unmounted, check forced.
[   49.760000] systemd-fsck[201]: /dev/sdb2: 27/63488 files (11.1% non-contiguous), 94612/126976 blocks
[  OK  ] Started File System Check on /dev/disk/by-uuid/c393b...9-21580d653d23.
         Mounting /boot...
[   50.144000] EXT4-fs (sdb2): mounting ext2 file system using the ext4 subsystem
[   50.244000] EXT4-fs (sdb2): mounted filesystem without journal. Opts: (null)
[  OK  ] Mounted /boot.
[  OK  ] Reached target Local File Systems.
         Starting Create Volatile Files and Directories...
[  OK  ] Reached target Remote File Systems.
         Starting Trigger Flushing of Journal to Persistent Storage...
         Starting LSB: Raise network interfaces....
[  OK  ] Started Create Volatile Files and Directories.
[   50.884000] systemd-journald[152]: Received request to flush runtime journal from PID 1
         Starting Update UTMP about System Boot/Shutdown...
[  OK  ] Started Trigger Flushing of Journal to Persistent Storage.
[  OK  ] Started Update UTMP about System Boot/Shutdown.
[  OK  ] Started LSB: Raise network interfaces..
         Starting ifup for eth0...
[  OK  ] Started ifup for eth0.
[  OK  ] Reached target Network.
[  OK  ] Reached target Network is Online.
         Starting LSB: RPC portmapper replacement...
[  OK  ] Started LSB: RPC portmapper replacement.
[  OK  ] Reached target RPC Port Mapper.
         Starting LSB: NFS support files common to client and server...
[   54.572000] RPC: Registered named UNIX socket transport module.
[   54.640000] RPC: Registered udp transport module.
[   54.700000] RPC: Registered tcp transport module.
[   54.756000] RPC: Registered tcp NFSv4.1 backchannel transport module.
[   54.948000] FS-Cache: Loaded
[   55.152000] FS-Cache: Netfs 'nfs' registered for caching
[   55.508000] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[   55.752000] net eth0: Setting full-duplex based on MII#1 link partner capability of c1e1
[  OK  ] Started LSB: NFS support files common to client and server.
[  OK  ] Reached target System Initialization.
[  OK  ] Listening on D-Bus System Message Bus Socket.
[  OK  ] Reached target Sockets.
[  OK  ] Reached target Timers.
[  OK  ] Reached target Basic System.
         Starting Deferred execution scheduler...
[  OK  ] Started Deferred execution scheduler.
         Starting Regular background program processing daemon...
[  OK  ] Started Regular background program processing daemon.
         Starting System Logging Service...
         Starting OpenBSD Secure Shell server...
[  OK  ] Started OpenBSD Secure Shell server.
         Starting /etc/rc.local Compatibility...
         Starting Permit User Sessions...
         Starting Login Service...
         Starting D-Bus System Message Bus...
[  OK  ] Started D-Bus System Message Bus.
         Starting LSB: exim Mail Transport Agent...
[  OK  ] Started System Logging Service.
[  OK  ] Started /etc/rc.local Compatibility.
[  OK  ] Started Permit User Sessions.
         Starting Getty on tty1...
[  OK  ] Started Getty on tty1.
         Starting Serial Getty on ttyS0...
[  OK  ] Started Serial Getty on ttyS0.
[  OK  ] Reached target Login Prompts.
[  OK  ] Started Login Service.
[  OK  ] Started LSB: exim Mail Transport Agent.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.

Debian GNU/Linux jessie/sid ls3017 ttyS0

ls3017 login: root
Password: 
Last login: Mon Oct  6 08:58:55 EDT 2014 from ls3530 on pts/1
Linux ls3017 3.16-2-parisc64-smp #1 SMP Debian 3.16.3-2 (2014-10-07) parisc64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
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Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
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ps -efroot@ls3017:~# ps -ef
UID        PID  PPID  C STIME TTY          TIME CMD
root         1     0 16 15:00 ?        00:00:18 /sbin/init
root         2     0  0 15:00 ?        00:00:00 [kthreadd]
root         3     2  0 15:00 ?        00:00:00 [ksoftirqd/0]
root         4     2  0 15:00 ?        00:00:00 [kworker/0:0]
root         5     2  0 15:00 ?        00:00:00 [kworker/0:0H]
root         6     2  0 15:00 ?        00:00:00 [kworker/u16:0]
root         7     2  0 15:00 ?        00:00:00 [kworker/u17:0]
root         8     2  1 15:00 ?        00:00:01 [rcu_sched]
root         9     2  0 15:00 ?        00:00:00 [rcu_bh]
root        10     2  0 15:00 ?        00:00:00 [migration/0]
root        11     2  0 15:00 ?        00:00:00 [khelper]
root        12     2  0 15:00 ?        00:00:00 [kdevtmpfs]
root        13     2  0 15:00 ?        00:00:00 [netns]
root        14     2  0 15:00 ?        00:00:00 [migration/1]
root        15     2  0 15:00 ?        00:00:00 [ksoftirqd/1]
root        16     2  0 15:00 ?        00:00:00 [kworker/1:0]
root        17     2  0 15:00 ?        00:00:00 [kworker/1:0H]
root        18     2  0 15:00 ?        00:00:00 [kworker/0:1]
root        19     2  0 15:00 ?        00:00:00 [kworker/1:1]
root        20     2  0 15:00 ?        00:00:00 [kpowerswd]
root        21     2  0 15:00 ?        00:00:00 [khungtaskd]
root        22     2  0 15:00 ?        00:00:00 [writeback]
root        23     2  0 15:00 ?        00:00:00 [ksmd]
root        24     2  0 15:00 ?        00:00:00 [crypto]
root        25     2  0 15:00 ?        00:00:00 [kintegrityd]
root        26     2  0 15:00 ?        00:00:00 [bioset]
root        27     2  0 15:00 ?        00:00:00 [kblockd]
root        28     2  0 15:00 ?        00:00:00 [kswapd0]
root        29     2  0 15:00 ?        00:00:00 [fsnotify_mark]
root        35     2  0 15:00 ?        00:00:00 [kthrotld]
root        36     2  0 15:00 ?        00:00:00 [led_wq]
root        37     2  0 15:00 ?        00:00:00 [kworker/u16:1]
root        38     2  0 15:00 ?        00:00:00 [ipv6_addrconf]
root        39     2  0 15:00 ?        00:00:00 [deferwq]
root        76     2  0 15:00 ?        00:00:00 [khubd]
root        77     2  0 15:00 ?        00:00:00 [ata_sff]
root        78     2  0 15:00 ?        00:00:00 [scsi_eh_0]
root        79     2  0 15:00 ?        00:00:00 [scsi_tmf_0]
root        80     2  0 15:00 ?        00:00:00 [kworker/u16:2]
root        81     2  0 15:00 ?        00:00:00 [scsi_eh_1]
root        82     2  0 15:00 ?        00:00:00 [scsi_tmf_1]
root        83     2  0 15:00 ?        00:00:00 [kworker/1:1H]
root        84     2  3 15:00 ?        00:00:03 [kworker/u16:3]
root        85     2  0 15:00 ?        00:00:00 [scsi_eh_2]
root        86     2  0 15:00 ?        00:00:00 [scsi_tmf_2]
root        87     2  0 15:00 ?        00:00:00 [kworker/u16:4]
root        88     2  0 15:00 ?        00:00:00 [scsi_eh_3]
root        89     2  0 15:00 ?        00:00:00 [scsi_tmf_3]
root        90     2  0 15:00 ?        00:00:00 [kworker/u16:5]
root        92     2  0 15:00 ?        00:00:00 [kworker/u16:6]
root        96     2  0 15:00 ?        00:00:00 [kworker/0:2]
root        99     2  0 15:00 ?        00:00:00 [kworker/0:1H]
root       101     2  0 15:00 ?        00:00:00 [kworker/1:2]
root       120     2  0 15:00 ?        00:00:00 [jbd2/sdb5-8]
root       121     2  0 15:00 ?        00:00:00 [ext4-rsv-conver]
root       152     1  2 15:00 ?        00:00:01 /lib/systemd/systemd-journald
root       153     2  0 15:00 ?        00:00:00 [kauditd]
root       165     1  1 15:00 ?        00:00:00 /lib/systemd/systemd-udevd
root       177     2  0 15:00 ?        00:00:00 [kworker/1:3]
root       207     2  0 15:00 ?        00:00:00 [ext4-rsv-conver]
root       282     1  0 15:00 ?        00:00:00 /sbin/rpcbind -w
root       288     1  0 15:00 ?        00:00:00 dhclient -v -pf /run/dhclient.et
statd      312     1  0 15:00 ?        00:00:00 /sbin/rpc.statd
root       317     2  0 15:00 ?        00:00:00 [rpciod]
root       320     2  0 15:01 ?        00:00:00 [nfsiod]
root       327     1  0 15:01 ?        00:00:00 /usr/sbin/rpc.idmapd
daemon     328     1  0 15:01 ?        00:00:00 /usr/sbin/atd -f
root       329     1  0 15:01 ?        00:00:00 /usr/sbin/cron -f
root       330     1  0 15:01 ?        00:00:00 /usr/sbin/rsyslogd -n
root       331     1  0 15:01 ?        00:00:00 /usr/sbin/sshd -D
root       335     1  0 15:01 ?        00:00:00 /lib/systemd/systemd-logind
message+   336     1  0 15:01 ?        00:00:00 /usr/bin/dbus-daemon --system --
root       357     1  0 15:01 tty1     00:00:00 /sbin/agetty --noclear tty1 linu
root       370     1  0 15:01 ttyS0    00:00:00 /bin/login --     
Debian-+   598     1  0 15:01 ?        00:00:00 /usr/sbin/exim4 -bd -q30m
root       604     1 17 15:01 ?        00:00:00 /lib/systemd/systemd --user
root       606   604  0 15:01 ?        00:00:00 (sd-pam)  
root       608   370 29 15:01 ttyS0    00:00:00 -bash
root       614   608  0 15:01 ttyS0    00:00:00 ps -ef


--------------060109070908020206020206--
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From - Thu Nov 08 21:10:49 2018
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From: Jeroen Roovers <jer@gentoo.org>
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Subject: Re: systemd on hppa and number of free RT signals
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To: Helge Deller <deller@gmx.de>
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On Tue, 07 Oct 2014 21:39:59 +0200
Helge Deller <deller@gmx.de> wrote:

> As already discussed here:
> http://article.gmane.org/gmane.linux.ports.parisc/5278
> we don't have enough RT signals for systemd, which requests
> "SIGRTMIN+29" which is > 64 (SIGRTMAX). Since systemd gets more and
> more important (e.g. KDE now seems to require systemd) we should try
> to find a solution.

We do have enough RT signals, as the patch attached to [1] demonstrates.
I haven't tried that patch with recent versions of systemd, though.
Unless systemd has started using even more signals or introduced even
more gaps for no reason at all.

> Additionally, given the fact that we have very little users and live
> in debian/gentoo unstable

That's Debian unstable and Gentoo /stable/ thank you very much. :)

> would IMHO justify such an incompatible change.

Gentoo dropped support for GNOME and KDE years ago (except for some of
the base libraries such as glib and gtk+ of course). The point being
that these fat window managers run utterly slow (exactly as they do on
much more recent x86 hardware).

Interest in supporting systemd therefore never went beyond the
purely academic interest displayed in [1]. Luckily, Gentoo already uses
an alternative, modern init system. Gentoo/HPPA has little need for
systemd, I would guess.

> The other option would be to increase NSIG in kernel from 64 to 128
> or higher.

Sounds like a lot of work.

> What's your opinion on this?

>From my perspective it looks like a lot of work for very little gain.
Gentoo has no need for systemd so all these changes would mean
upgrading kernel and libc requires a lot more attention, and systemd
could equally well compact the ill-chosen RT signal range.


Regards,
     jer



[1] https://bugs.gentoo.org/show_bug.cgi?id=482214
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From - Thu Nov 08 21:10:49 2018
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Subject: Re: systemd on hppa and number of free RT signals
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Cc: linux-parisc <linux-parisc@vger.kernel.org>,
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To: Helge Deller <deller@gmx.de>
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On Tue, Oct 7, 2014 at 3:39 PM, Helge Deller <deller@gmx.de> wrote:
> I've just had a successful boot on hppa with systemd :-)
> The bootlog is attached.

Awesome.

> The attached patches to Linux kernel and glibc shuffles around some signals,
> so that we end up with
> #define __SIGRTMIN      32
> instead of
> #define __SIGRTMIN      37

This is the right way to go.

Yes it's an ABI event, but these are fundamentally niche architectures
for which we can't ask everyone else to adjust.

> I do know that this changes the ABI and introduces a binary incompatibly.
> Nevertheless, my testing with the new kernel and glibc didn't showed any
> obvious problems, which means that I could install either of those and the
> system didn't showed problems even after reboots.

That's because the signals you moved/removed aren't used by anything :-)

> Additionally, given the fact that we have very little users and live in
> debian/gentoo unstable would IMHO justify such an incompatible change. Even
> HP-UX support was dropped a few months back...
> And we could easily rebuild packages like strace, gdb and such...

That's right.

> The other option would be to increase NSIG in kernel from 64 to 128 or
> higher.

No, that's a very very bad idea because it has consequences on
sigset_t and that would really really immediately break userspace.

> I did tried to come up with kernel patches for this now for a few weeks, but
> ended up with the recognition, that this would require to duplicate nearly
> all of Linux kernel signal handling and which would most likely introduce
> new bugs.

Agreed.

> What's your opinion on this?

Flawless hack. Very well reorganized. Your removal of SIGLOST, and
reorganizing is the best I could come up with also.

The only thing I will do different is make SIGEMT equal to SIGABRT,
that way we preserve the semantics of what this operation means. Linux
doesn't use SIGEMT, but it keeps hppa defining this for use by other
software that might want similar semantics. You can catch SIGABRT and
operate on it, so it's one way forward.

If you agree I'll checkin to glibc master.

Cheers,
Carlos.
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On Tue, Oct 7, 2014 at 4:50 PM, Jeroen Roovers <jer@gentoo.org> wrote:
>> What's your opinion on this?
>
> From my perspective it looks like a lot of work for very little gain.
> Gentoo has no need for systemd so all these changes would mean
> upgrading kernel and libc requires a lot more attention, and systemd
> could equally well compact the ill-chosen RT signal range.

Helge's changes bring hppa inline with other machines with little to
no impact to userspace.

That is a win from a maintenance perspective IMO.

Cheers,
Carlos.
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From: Helge Deller <deller@gmx.de>
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Subject: Re: systemd on hppa and number of free RT signals
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To: Carlos O'Donell <carlos@systemhalted.org>
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Hi Carlos,

On 10/07/2014 11:03 PM, Carlos O'Donell wrote:
> On Tue, Oct 7, 2014 at 3:39 PM, Helge Deller <deller@gmx.de> wrote:
>> I've just had a successful boot on hppa with systemd :-)
>> The bootlog is attached.
>
> Awesome.

Thanks!
  
>> The attached patches to Linux kernel and glibc shuffles around some signals,
>> so that we end up with
>> #define __SIGRTMIN      32
>> instead of
>> #define __SIGRTMIN      37
>
> This is the right way to go.
>
> Yes it's an ABI event, but these are fundamentally niche architectures
> for which we can't ask everyone else to adjust.

Yes, that was my opinion too.
  
>> I do know that this changes the ABI and introduces a binary incompatibly.
>> Nevertheless, my testing with the new kernel and glibc didn't showed any
>> obvious problems, which means that I could install either of those and the
>> system didn't showed problems even after reboots.
>
> That's because the signals you moved/removed aren't used by anything :-)
>
>> Additionally, given the fact that we have very little users and live in
>> debian/gentoo unstable would IMHO justify such an incompatible change. Even
>> HP-UX support was dropped a few months back...
>> And we could easily rebuild packages like strace, gdb and such...
>
> That's right.
>
>> The other option would be to increase NSIG in kernel from 64 to 128 or
>> higher.
>
> No, that's a very very bad idea because it has consequences on
> sigset_t and that would really really immediately break userspace.
>
>> I did tried to come up with kernel patches for this now for a few weeks, but
>> ended up with the recognition, that this would require to duplicate nearly
>> all of Linux kernel signal handling and which would most likely introduce
>> new bugs.
>
> Agreed.
>
>> What's your opinion on this?
>
> Flawless hack. Very well reorganized. Your removal of SIGLOST, and
> reorganizing is the best I could come up with also.
>
> The only thing I will do different is make SIGEMT equal to SIGABRT,
> that way we preserve the semantics of what this operation means. Linux
> doesn't use SIGEMT, but it keeps hppa defining this for use by other
> software that might want similar semantics. You can catch SIGABRT and
> operate on it, so it's one way forward.

Good idea!
  
> If you agree I'll checkin to glibc master.

I think we should check in the kernel changes first, which I can cover.
That shouldn't be a problem, but I assume people (Linus?) may ask why we do this.
Does it makes sense to set up a Wiki page with some more info about it?
If yes, I think I might need some help there...

Helge
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From: Helge Deller <deller@gmx.de>
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Subject: Re: systemd on hppa and number of free RT signals
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Hi Jeroen,

On 10/07/2014 10:50 PM, Jeroen Roovers wrote:
> On Tue, 07 Oct 2014 21:39:59 +0200
> Helge Deller <deller@gmx.de> wrote:
>
>> As already discussed here:
>> http://article.gmane.org/gmane.linux.ports.parisc/5278
>> we don't have enough RT signals for systemd, which requests
>> "SIGRTMIN+29" which is > 64 (SIGRTMAX). Since systemd gets more and
>> more important (e.g. KDE now seems to require systemd) we should try
>> to find a solution.
>
> We do have enough RT signals, as the patch attached to [1] demonstrates.

Agreed, my wording was maybe not perfect. We do have enough signals, but systemd
does has some strange expectations which you perfectly described in your bug report.

> I haven't tried that patch with recent versions of systemd, though.
> Unless systemd has started using even more signals or introduced even
> more gaps for no reason at all.

My patch brings hppa in sync with x86 and others, and those don't have more than us then.
This means we would be on the safe side :-)

>> Additionally, given the fact that we have very little users and live
>> in debian/gentoo unstable
>
> That's Debian unstable and Gentoo /stable/ thank you very much. :)

Sorry...
  
>> would IMHO justify such an incompatible change.
>
> Gentoo dropped support for GNOME and KDE years ago (except for some of
> the base libraries such as glib and gtk+ of course). The point being
> that these fat window managers run utterly slow (exactly as they do on
> much more recent x86 hardware).

It's not just the window manager. I tried to install "konsole" and this pulls in systemd.
  
> Interest in supporting systemd therefore never went beyond the
> purely academic interest displayed in [1]. Luckily, Gentoo already uses
> an alternative, modern init system. Gentoo/HPPA has little need for
> systemd, I would guess.

I think Debian will stay with sysvinit and systemd ?
  
>> The other option would be to increase NSIG in kernel from 64 to 128
>> or higher.
>
> Sounds like a lot of work.

Yes.

>> What's your opinion on this?
>
>  From my perspective it looks like a lot of work for very little gain.
> Gentoo has no need for systemd so all these changes would mean
> upgrading kernel and libc requires a lot more attention, and systemd
> could equally well compact the ill-chosen RT signal range.

As I mentioned before, I could not see any direct impact on a debian installation.
Of course I haven't tested everything, but I assume Gentoo would see similiar little
influence too.  

Helge
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Hi,

On Tue, Oct 07, 2014 at 05:03:30PM -0400, Carlos O'Donell wrote:
> On Tue, Oct 7, 2014 at 3:39 PM, Helge Deller <deller@gmx.de> wrote:
> > What's your opinion on this?
> 
> Flawless hack. Very well reorganized. Your removal of SIGLOST, and
> reorganizing is the best I could come up with also.
> 
> The only thing I will do different is make SIGEMT equal to SIGABRT,
> that way we preserve the semantics of what this operation means. Linux
> doesn't use SIGEMT, but it keeps hppa defining this for use by other
> software that might want similar semantics. You can catch SIGABRT and
> operate on it, so it's one way forward.
> 
> If you agree I'll checkin to glibc master.

BTW, is there any plan/schedule for getting glibc to support pa-risc
without out-of-tree patches? Any help (e.g. testing) needed there?

A.
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Hi,

On Tue, Oct 07, 2014 at 09:39:59PM +0200, Helge Deller wrote:
> Since systemd gets more and more important (e.g. KDE now seems
> to require systemd) we should try to find a solution.

Personally I don't mind such changes (I compile everything from scratch
so ABI breakages are not a big issue), but generally I think Linux/PA-RISC
community could maybe put more focus on some core issues like GCC
and GLIBC support...

A.
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Subject: Re: [PATCH 03/44] hibernate: Call have_kernel_poweroff instead of checking pm_power_off
Date: Wed, 08 Oct 2014 01:41:56 +0200
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To: Guenter Roeck <linux@roeck-us.net>
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On Monday, October 06, 2014 10:28:05 PM Guenter Roeck wrote:
> Poweroff handlers may now be installed with register_poweroff_handler.
> Use the new API function have_kernel_poweroff to determine if a poweroff
> handler has been installed.
> 
> Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Len Brown <len.brown@intel.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>

ACK

> ---
>  kernel/power/hibernate.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
> index a9dfa79..20353c5 100644
> --- a/kernel/power/hibernate.c
> +++ b/kernel/power/hibernate.c
> @@ -602,7 +602,7 @@ static void power_down(void)
>  	case HIBERNATION_PLATFORM:
>  		hibernation_platform_enter();
>  	case HIBERNATION_SHUTDOWN:
> -		if (pm_power_off)
> +		if (have_kernel_poweroff())
>  			kernel_power_off();
>  		break;
>  #ifdef CONFIG_SUSPEND
> 

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.

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From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
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Subject: Re: [PATCH 08/44] kernel: Move pm_power_off to common code
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On Monday, October 06, 2014 10:28:10 PM Guenter Roeck wrote:
> pm_power_off is defined for all architectures. Move it to common code.
> 
> Have all architectures call do_kernel_poweroff instead of pm_power_off.
> Some architectures point pm_power_off to machine_power_off. For those,
> call do_kernel_poweroff from machine_power_off instead.

ACK

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.



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Subject: Re: [PATCH 44/44] kernel: Remove pm_power_off
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To: Guenter Roeck <linux@roeck-us.net>
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On Monday, October 06, 2014 10:28:46 PM Guenter Roeck wrote:
> No users of pm_power_off are left, so it is safe to remove the function.
> 
> Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Len Brown <len.brown@intel.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>

ACK

> ---
>  include/linux/pm.h              |  1 -
>  kernel/power/poweroff_handler.c | 10 +---------
>  2 files changed, 1 insertion(+), 10 deletions(-)
> 
> diff --git a/include/linux/pm.h b/include/linux/pm.h
> index 45271b5..fce7645 100644
> --- a/include/linux/pm.h
> +++ b/include/linux/pm.h
> @@ -31,7 +31,6 @@
>  /*
>   * Callbacks for platform drivers to implement.
>   */
> -extern void (*pm_power_off)(void);
>  extern void (*pm_power_off_prepare)(void);
>  
>  /*
> diff --git a/kernel/power/poweroff_handler.c b/kernel/power/poweroff_handler.c
> index 96f59ef..01a3a39 100644
> --- a/kernel/power/poweroff_handler.c
> +++ b/kernel/power/poweroff_handler.c
> @@ -20,12 +20,6 @@
>  #include <linux/types.h>
>  
>  /*
> - * If set, calling this function will power off the system immediately.
> - */
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
> -/*
>   *	Notifier list for kernel code which wants to be called
>   *	to power off the system.
>   */
> @@ -163,8 +157,6 @@ int register_poweroff_handler_simple(void (*handler)(void), int priority)
>   */
>  void do_kernel_poweroff(void)
>  {
> -	if (pm_power_off)
> -		pm_power_off();
>  	atomic_notifier_call_chain(&poweroff_handler_list, 0, NULL);
>  }
>  
> @@ -175,6 +167,6 @@ void do_kernel_poweroff(void)
>   */
>  bool have_kernel_poweroff(void)
>  {
> -	return pm_power_off != NULL || poweroff_handler_list.head != NULL;
> +	return poweroff_handler_list.head != NULL;
>  }
>  EXPORT_SYMBOL(have_kernel_poweroff);
> 

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.

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Subject: Re: [PATCH 08/44] kernel: Move pm_power_off to common code
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On Tue, Oct 07, 2014 at 07:28:10AM +0200, Guenter Roeck wrote:
> pm_power_off is defined for all architectures. Move it to common code.
> 
> Have all architectures call do_kernel_poweroff instead of pm_power_off.
> Some architectures point pm_power_off to machine_power_off. For those,
> call do_kernel_poweroff from machine_power_off instead.

For the CRIS parts:

>  arch/cris/kernel/process.c         |  4 +---

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>


/^JN - Jesper Nilsson
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On 10/07/2014 09:39 PM, Helge Deller wrote:
> I've just had a successful boot on hppa with systemd :-)
> The bootlog is attached.
>...
> I will provide prebuilt debian packages with those patches for kernel and glibc tomorrow for download, so that people may test themselves...

I've uploaded the debian kernel and glibc packages to:
ftp://ftp.parisc-linux.org/SIGNAL_NEW/

A short README is here:
ftp://ftp.parisc-linux.org/SIGNAL_NEW/README.txt

It would be nice if people could test it...

Helge
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----- Guenter Roeck <linux@roeck-us.net> =E5=86=99=E9=81=93=EF=BC=9A
> pm_power_off is defined for all architectures. Move it to common code=
=2E
>=20
> Have all architectures call do_kernel_poweroff instead of pm_power_of=
f.
> Some architectures point pm_power_off to machine_power_off. For those=
,
> call do_kernel_poweroff from machine_power_off instead.
>=20

=46or UniCore32 part,

Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>

Thanks
Xuetao



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On 10/7/2014 6:34 PM, Aaro Koskinen wrote:
> Personally I don't mind such changes (I compile everything from scratch
> so ABI breakages are not a big issue), but generally I think Linux/PA-RISC
> community could maybe put more focus on some core issues like GCC
> and GLIBC support...
I think that's happening.

On Debian unstable, we currently have 10291 installed packages.
We are neck to neck with ppc64, and a couple hundred behind alpha.
http://buildd.debian-ports.org/stats/

At this point, adding new packages requires porting and bug fixes. The 
signal change proposed
by Helge here is an example.

I am working at the moment on an update to the GCC fast indirect call 
support for Linux.  There
are also two trunk breakages and several minor issues ongoing.

Is there something specific you would like to see?

Dave

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From: Catalin Marinas <catalin.marinas@arm.com>
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Subject: Re: [PATCH 08/44] kernel: Move pm_power_off to common code
Date: Thu, 9 Oct 2014 11:28:55 +0100
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To: Guenter Roeck <linux@roeck-us.net>
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On Tue, Oct 07, 2014 at 06:28:10AM +0100, Guenter Roeck wrote:
> diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
> index e0ef8ba..db396bb 100644
> --- a/arch/arm64/kernel/process.c
> +++ b/arch/arm64/kernel/process.c
> @@ -94,8 +94,6 @@ void soft_restart(unsigned long addr)
>  /*
>   * Function pointers to optional machine specific functions
>   */
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL_GPL(pm_power_off);
> 
>  void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
> 
> @@ -155,8 +153,7 @@ void machine_power_off(void)
>  {
>         local_irq_disable();
>         smp_send_stop();
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_poweroff();
>  }

Acked-by: Catalin Marinas <catalin.marinas@arm.com>



From - Thu Nov 08 21:10:50 2018
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From: Pavel Machek <pavel@ucw.cz>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.kernel.efi,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: Re: [PATCH 01/44] kernel: Add support for poweroff handler call chain
Date: Thu, 9 Oct 2014 12:31:43 +0200
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To: Guenter Roeck <linux@roeck-us.net>
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Hi!

> +/**
> + *	register_poweroff_handler_simple - Register function to be called to power off
> + *					   the system
> + *	@handler:	Function to be called to power off the system
> + *	@priority:	Handler priority. For priority guidelines see
> + *			register_poweroff_handler.
> + *
> + *	This is a simplified version of register_poweroff_handler. It does not
> + *	take a notifier as argument, but a function pointer. The function
> + *	registers a poweroff handler with specified priority. Poweroff
> + *	handlers registered with this function can not be unregistered,
> + *	and only a single poweroff handler can be installed using it.
> + *
> + *	This function must not be called from modules and is therefore
> + *	not exported.
> + *
> + *	Returns -EBUSY if a poweroff handler has already been registered
> + *	using register_poweroff_handler_simple. Otherwise returns zero,
> + *	since atomic_notifier_chain_register() currently always returns zero.
> + */
> +int register_poweroff_handler_simple(void (*handler)(void), int priority)
> +{
> +	char symname[KSYM_NAME_LEN];
> +
> +	if (poweroff_handler_data.handler) {
> +		lookup_symbol_name((unsigned long)poweroff_handler_data.handler,
> +				   symname);
> +		pr_warn("Poweroff function already registered (%s)", symname);
> +		lookup_symbol_name((unsigned long)handler, symname);
> +		pr_cont(", cannot register %s\n", symname);
> +		return -EBUSY;
> +	}

Dunno, are you maybe overdoing the debugging infrastructure a bit?
This is not going to happen in production, and if it does happen,
developer can look the symbol name himself.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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Subject: Re: [PATCH 03/44] hibernate: Call have_kernel_poweroff instead of
 checking pm_power_off
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.efi/4789>

On Mon 2014-10-06 22:28:05, Guenter Roeck wrote:
> Poweroff handlers may now be installed with register_poweroff_handler.
> Use the new API function have_kernel_poweroff to determine if a poweroff
> handler has been installed.
> 
> Cc: Rafael J. Wysocki <rjw-LthD3rsA81gm4RdzfppkhA@public.gmane.org>
> Cc: Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>
> Cc: Len Brown <len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
> ---
>  kernel/power/hibernate.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
> index a9dfa79..20353c5 100644
> --- a/kernel/power/hibernate.c
> +++ b/kernel/power/hibernate.c
> @@ -602,7 +602,7 @@ static void power_down(void)
>  	case HIBERNATION_PLATFORM:
>  		hibernation_platform_enter();
>  	case HIBERNATION_SHUTDOWN:
> -		if (pm_power_off)
> +		if (have_kernel_poweroff())
>  			kernel_power_off();
>  		break;

poweroff -> power_off.

But if you are playing with this, anyway... does it make sense to
introduce kernel_power_off() that just works, no need to check
have_..?
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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Subject: Re: [PATCH 08/44] kernel: Move pm_power_off to common code
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To: Guenter Roeck <linux@roeck-us.net>, "linux-kernel@vger.kernel.org"
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On Tuesday 07 October 2014 11:01 AM, Guenter Roeck wrote:

diff --git a/arch/arc/kernel/reset.c b/arch/arc/kernel/reset.c
index 2768fa1..8a4fc47 100644
--- a/arch/arc/kernel/reset.c
+++ b/arch/arc/kernel/reset.c
@@ -26,9 +26,6 @@ void machine_restart(char *__unused)

 void machine_power_off(void)
 {
-       /* FIXME ::  power off ??? */
+       do_kernel_poweroff();
        machine_halt();
 }
-
-void (*pm_power_off) (void) = NULL;
-EXPORT_SYMBOL(pm_power_off);

Acked-by: Vineet Gupta <vgupta@synopsys.com><mailto:vgupta@synopsys.com>

Thx,
-Vineet

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On Tue, Oct 07, 2014 at 09:00:48AM +0100, Lee Jones wrote:
> On Mon, 06 Oct 2014, Guenter Roeck wrote:
> > --- a/drivers/mfd/ab8500-sysctrl.c
> > +++ b/drivers/mfd/ab8500-sysctrl.c
> > @@ -6,6 +6,7 @@
> 
> [...]
> 
> > +static int ab8500_power_off(struct notifier_block *this, unsigned long unused1,
> > +			    void *unused2)
> >  {
> >  	sigset_t old;
> >  	sigset_t all;
> > @@ -34,11 +36,6 @@ static void ab8500_power_off(void)
> >  	struct power_supply *psy;
> >  	int ret;
> >  
> > -	if (sysctrl_dev == NULL) {
> > -		pr_err("%s: sysctrl not initialized\n", __func__);
> > -		return;
> > -	}
> 
> Can you explain the purpose of this change please?

I guess it's because the sysctrl_dev is already initialised when
registering the power_off handler, so there isn't a way to call the
above function with a NULL sysctrl_dev. Probably even with the original
code you didn't need this check (after some race fix in
ab8500_sysctrl_remove but races is one of the things Guenter's patches
try to address).

-- 
Catalin

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To: Guenter Roeck <linux@roeck-us.net>
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Hi!

> @@ -184,6 +179,8 @@ machine_halt(void)
>  void
>  machine_power_off(void)
>  {
> +	do_kernel_poweroff();
> +

poweroff -> power_off for consistency.


> index c4f50a3..1da27d1 100644
> --- a/arch/blackfin/kernel/reboot.c
> +++ b/arch/blackfin/kernel/reboot.c
> @@ -106,6 +107,7 @@ void machine_halt(void)
>  __attribute__((weak))
>  void native_machine_power_off(void)
>  {
> +	do_kernel_poweroff();
>  	idle_with_irq_disabled();
>  }
>

So here we handle do_kernel_poweroff() returning,

> diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
> index b78498e..eaafad0 100644
> --- a/arch/cris/kernel/process.c
> +++ b/arch/cris/kernel/process.c
> @@ -60,6 +57,7 @@ void machine_halt(void)
>  
>  void machine_power_off(void)
>  {
> +	do_kernel_poweroff();
>  }
>


Here we don't.

> diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
> index 5d40aeb77..a673725 100644
> --- a/arch/frv/kernel/process.c
> +++ b/arch/frv/kernel/process.c
> @@ -107,6 +104,8 @@ void machine_power_off(void)
>  	gdbstub_exit(0);
>  #endif
>  
> +	do_kernel_poweroff();
> +
>  	for (;;);
>  }
>  

And here we do.

What is right?
								Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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Subject: Re: [PATCH 32/44] arm64: psci: Register with kernel poweroff handler
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To: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.efi/4793>

On Tue, Oct 07, 2014 at 06:28:34AM +0100, Guenter Roeck wrote:
> Register with kernel poweroff handler instead of setting pm_power_off
> directly.
> 
> Cc: Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>
> Cc: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
> Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
> ---
>  arch/arm64/kernel/psci.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
> index 5539547..c1f3d09 100644
> --- a/arch/arm64/kernel/psci.c
> +++ b/arch/arm64/kernel/psci.c
> @@ -286,7 +286,7 @@ static int __init psci_0_2_init(struct device_node *np)
>  
>  	arm_pm_restart = psci_sys_reset;
>  
> -	pm_power_off = psci_sys_poweroff;
> +	register_poweroff_handler_simple(psci_sys_poweroff, 128);
>  
>  out_put_node:
>  	of_node_put(np);

Acked-by: Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>

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On Thu, 09 Oct 2014, Catalin Marinas wrote:

> On Tue, Oct 07, 2014 at 09:00:48AM +0100, Lee Jones wrote:
> > On Mon, 06 Oct 2014, Guenter Roeck wrote:
> > > --- a/drivers/mfd/ab8500-sysctrl.c
> > > +++ b/drivers/mfd/ab8500-sysctrl.c
> > > @@ -6,6 +6,7 @@
> >=20
> > [...]
> >=20
> > > +static int ab8500_power_off(struct notifier_block *this, unsigne=
d long unused1,
> > > +			    void *unused2)
> > >  {
> > >  	sigset_t old;
> > >  	sigset_t all;
> > > @@ -34,11 +36,6 @@ static void ab8500_power_off(void)
> > >  	struct power_supply *psy;
> > >  	int ret;
> > > =20
> > > -	if (sysctrl_dev =3D=3D NULL) {
> > > -		pr_err("%s: sysctrl not initialized\n", __func__);
> > > -		return;
> > > -	}
> >=20
> > Can you explain the purpose of this change please?
>=20
> I guess it's because the sysctrl_dev is already initialised when
> registering the power_off handler, so there isn't a way to call the
> above function with a NULL sysctrl_dev. Probably even with the origin=
al
> code you didn't need this check (after some race fix in
> ab8500_sysctrl_remove but races is one of the things Guenter's patche=
s
> try to address).

Sounds reasonable, although I think this change should be part of
another patch.

--=20
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org =E2=94=82 Open source software for ARM SoCs
=46ollow Linaro: Facebook | Twitter | Blog
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Subject: Re: [PATCH 01/44] kernel: Add support for poweroff handler call chain
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To: Guenter Roeck <linux@roeck-us.net>
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On Tue, Oct 7, 2014 at 7:28 AM, Guenter Roeck <linux@roeck-us.net> wrote:
> +int register_poweroff_handler_simple(void (*handler)(void), int priority)
> +{
> +       char symname[KSYM_NAME_LEN];
> +
> +       if (poweroff_handler_data.handler) {
> +               lookup_symbol_name((unsigned long)poweroff_handler_data.handler,
> +                                  symname);
> +               pr_warn("Poweroff function already registered (%s)", symname);
> +               lookup_symbol_name((unsigned long)handler, symname);
> +               pr_cont(", cannot register %s\n", symname);

Doesn't %ps work to look up symbols?

pr_warn("Poweroff function already registered (%ps), cannot register
%ps\n", poweroff_handler_data.handler, handler);

> +               return -EBUSY;
> +       }

Gr{oetje,eeting}s,

                        Geert

--
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On 10/09/2014 03:32 AM, Pavel Machek wrote:
> On Mon 2014-10-06 22:28:05, Guenter Roeck wrote:
>> Poweroff handlers may now be installed with register_poweroff_handler.
>> Use the new API function have_kernel_poweroff to determine if a poweroff
>> handler has been installed.
>>
>> Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
>> Cc: Pavel Machek <pavel@ucw.cz>
>> Cc: Len Brown <len.brown@intel.com>
>> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
>> ---
>>   kernel/power/hibernate.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
>> index a9dfa79..20353c5 100644
>> --- a/kernel/power/hibernate.c
>> +++ b/kernel/power/hibernate.c
>> @@ -602,7 +602,7 @@ static void power_down(void)
>>   	case HIBERNATION_PLATFORM:
>>   		hibernation_platform_enter();
>>   	case HIBERNATION_SHUTDOWN:
>> -		if (pm_power_off)
>> +		if (have_kernel_poweroff())
>>   			kernel_power_off();
>>   		break;
>
> poweroff -> power_off.
>
As mentioned in my other reply, that was on purpose to distinguish
existing functions from poweroff handler functions.

> But if you are playing with this, anyway... does it make sense to
> introduce kernel_power_off() that just works, no need to check
> have_..?
> 									Pavel

I am trying not to change existing behavior.

kernel_power_off is an existing function which does some cleanup
before calling machine_power_off which in turn calls do_kernel_poweroff
(or currently pm_power_off and may do some other machine specific stuff.

Sure, poweroff handling could be unified further. We could decide to
enter an endless loop if machine_power_off() returns, or we could decide
to dump a warning or panic in this case. But that is all separate from
the issue I am trying to solve here, which is to provide a capability to
register more than one poweroff handler. It would also not be that simple,
since some architectures call machine_power_off() directly from various
places.

Guenter

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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On 10/09/2014 04:31 AM, Geert Uytterhoeven wrote:
> On Tue, Oct 7, 2014 at 7:28 AM, Guenter Roeck <linux@roeck-us.net> wrote:
>> +int register_poweroff_handler_simple(void (*handler)(void), int priority)
>> +{
>> +       char symname[KSYM_NAME_LEN];
>> +
>> +       if (poweroff_handler_data.handler) {
>> +               lookup_symbol_name((unsigned long)poweroff_handler_data.handler,
>> +                                  symname);
>> +               pr_warn("Poweroff function already registered (%s)", symname);
>> +               lookup_symbol_name((unsigned long)handler, symname);
>> +               pr_cont(", cannot register %s\n", symname);
>
> Doesn't %ps work to look up symbols?
>
> pr_warn("Poweroff function already registered (%ps), cannot register
> %ps\n", poweroff_handler_data.handler, handler);
>

Hi Geert,

That is great. One never stops learning. I'll use that.

Thanks!

Guenter




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Subject: Re: [PATCH 12/44] mfd: ab8500-sysctrl: Register with kernel poweroff
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On 10/09/2014 03:49 AM, Lee Jones wrote:
> On Thu, 09 Oct 2014, Catalin Marinas wrote:
>
>> On Tue, Oct 07, 2014 at 09:00:48AM +0100, Lee Jones wrote:
>>> On Mon, 06 Oct 2014, Guenter Roeck wrote:
>>>> --- a/drivers/mfd/ab8500-sysctrl.c
>>>> +++ b/drivers/mfd/ab8500-sysctrl.c
>>>> @@ -6,6 +6,7 @@
>>>
>>> [...]
>>>
>>>> +static int ab8500_power_off(struct notifier_block *this, unsigned long unused1,
>>>> +			    void *unused2)
>>>>   {
>>>>   	sigset_t old;
>>>>   	sigset_t all;
>>>> @@ -34,11 +36,6 @@ static void ab8500_power_off(void)
>>>>   	struct power_supply *psy;
>>>>   	int ret;
>>>>
>>>> -	if (sysctrl_dev == NULL) {
>>>> -		pr_err("%s: sysctrl not initialized\n", __func__);
>>>> -		return;
>>>> -	}
>>>
>>> Can you explain the purpose of this change please?
>>
>> I guess it's because the sysctrl_dev is already initialised when
>> registering the power_off handler, so there isn't a way to call the
>> above function with a NULL sysctrl_dev. Probably even with the original
>> code you didn't need this check (after some race fix in
>> ab8500_sysctrl_remove but races is one of the things Guenter's patches
>> try to address).
>
> Sounds reasonable, although I think this change should be part of
> another patch.
>
Sure, no problem. I'll split this into two patches.

Since we are at it, any idea what to do with the restart function
in the same file ? It is not used anywhere.

Guenter

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Subject: Re: [PATCH 12/44] mfd: ab8500-sysctrl: Register with kernel poweroff
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On Thu, 09 Oct 2014, Guenter Roeck wrote:

> On 10/09/2014 03:49 AM, Lee Jones wrote:
> >On Thu, 09 Oct 2014, Catalin Marinas wrote:
> >
> >>On Tue, Oct 07, 2014 at 09:00:48AM +0100, Lee Jones wrote:
> >>>On Mon, 06 Oct 2014, Guenter Roeck wrote:
> >>>>--- a/drivers/mfd/ab8500-sysctrl.c
> >>>>+++ b/drivers/mfd/ab8500-sysctrl.c
> >>>>@@ -6,6 +6,7 @@
> >>>
> >>>[...]
> >>>
> >>>>+static int ab8500_power_off(struct notifier_block *this, unsigne=
d long unused1,
> >>>>+			    void *unused2)
> >>>>  {
> >>>>  	sigset_t old;
> >>>>  	sigset_t all;
> >>>>@@ -34,11 +36,6 @@ static void ab8500_power_off(void)
> >>>>  	struct power_supply *psy;
> >>>>  	int ret;
> >>>>
> >>>>-	if (sysctrl_dev =3D=3D NULL) {
> >>>>-		pr_err("%s: sysctrl not initialized\n", __func__);
> >>>>-		return;
> >>>>-	}
> >>>
> >>>Can you explain the purpose of this change please?
> >>
> >>I guess it's because the sysctrl_dev is already initialised when
> >>registering the power_off handler, so there isn't a way to call the
> >>above function with a NULL sysctrl_dev. Probably even with the orig=
inal
> >>code you didn't need this check (after some race fix in
> >>ab8500_sysctrl_remove but races is one of the things Guenter's patc=
hes
> >>try to address).
> >
> >Sounds reasonable, although I think this change should be part of
> >another patch.
> >
> Sure, no problem. I'll split this into two patches.
>=20
> Since we are at it, any idea what to do with the restart function
> in the same file ? It is not used anywhere.

You can strip it out with Linus Walleij's Ack.  Or I'll be happy to do
it?

--=20
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org =E2=94=82 Open source software for ARM SoCs
=46ollow Linaro: Facebook | Twitter | Blog

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Subject: Re: [PATCH 08/44] kernel: Move pm_power_off to common code
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On 10/09/2014 03:38 AM, Pavel Machek wrote:
> Hi!
>
>> @@ -184,6 +179,8 @@ machine_halt(void)
>>   void
>>   machine_power_off(void)
>>   {
>> +	do_kernel_poweroff();
>> +
>
> poweroff -> power_off for consistency.
>
Dunno; matter of personal preference. I started with that, but ultimately went
with poweroff to distinguish poweroff handler functions from existing code,
specifically kernel_power_off().

Does anyone else have an opinion ?

>
>> index c4f50a3..1da27d1 100644
>> --- a/arch/blackfin/kernel/reboot.c
>> +++ b/arch/blackfin/kernel/reboot.c
>> @@ -106,6 +107,7 @@ void machine_halt(void)
>>   __attribute__((weak))
>>   void native_machine_power_off(void)
>>   {
>> +	do_kernel_poweroff();
>>   	idle_with_irq_disabled();
>>   }
>>
>
> So here we handle do_kernel_poweroff() returning,
>
>> diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
>> index b78498e..eaafad0 100644
>> --- a/arch/cris/kernel/process.c
>> +++ b/arch/cris/kernel/process.c
>> @@ -60,6 +57,7 @@ void machine_halt(void)
>>
>>   void machine_power_off(void)
>>   {
>> +	do_kernel_poweroff();
>>   }
>>
>
>
> Here we don't.
>
>> diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
>> index 5d40aeb77..a673725 100644
>> --- a/arch/frv/kernel/process.c
>> +++ b/arch/frv/kernel/process.c
>> @@ -107,6 +104,8 @@ void machine_power_off(void)
>>   	gdbstub_exit(0);
>>   #endif
>>
>> +	do_kernel_poweroff();
>> +
>>   	for (;;);
>>   }
>>
>
> And here we do.
>
> What is right?
> 								Pavel

Up to the architecture maintainer to decide. My goal was to not change
existing behavior if no poweroff handler is registered.

Guenter




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Subject: Re: [PATCH 01/44] kernel: Add support for poweroff handler call chain
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On Thu, Oct 09, 2014 at 12:31:43PM +0200, Pavel Machek wrote:
> Hi!
> 
> > +/**
> > + *	register_poweroff_handler_simple - Register function to be called to power off
> > + *					   the system
> > + *	@handler:	Function to be called to power off the system
> > + *	@priority:	Handler priority. For priority guidelines see
> > + *			register_poweroff_handler.
> > + *
> > + *	This is a simplified version of register_poweroff_handler. It does not
> > + *	take a notifier as argument, but a function pointer. The function
> > + *	registers a poweroff handler with specified priority. Poweroff
> > + *	handlers registered with this function can not be unregistered,
> > + *	and only a single poweroff handler can be installed using it.
> > + *
> > + *	This function must not be called from modules and is therefore
> > + *	not exported.
> > + *
> > + *	Returns -EBUSY if a poweroff handler has already been registered
> > + *	using register_poweroff_handler_simple. Otherwise returns zero,
> > + *	since atomic_notifier_chain_register() currently always returns zero.
> > + */
> > +int register_poweroff_handler_simple(void (*handler)(void), int priority)
> > +{
> > +	char symname[KSYM_NAME_LEN];
> > +
> > +	if (poweroff_handler_data.handler) {
> > +		lookup_symbol_name((unsigned long)poweroff_handler_data.handler,
> > +				   symname);
> > +		pr_warn("Poweroff function already registered (%s)", symname);
> > +		lookup_symbol_name((unsigned long)handler, symname);
> > +		pr_cont(", cannot register %s\n", symname);
> > +		return -EBUSY;
> > +	}
> 
> Dunno, are you maybe overdoing the debugging infrastructure a bit?
> This is not going to happen in production, and if it does happen,
> developer can look the symbol name himself.

On the other side, I don't think it hurts to have that message.
Anyway, I'll use %ps as suggested by Geert.

Guenter

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Subject: Re: [PATCH 12/44] mfd: ab8500-sysctrl: Register with kernel poweroff
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Date: Thu, 9 Oct 2014 08:45:15 -0700
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To: Lee Jones <lee.jones@linaro.org>
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On Thu, Oct 09, 2014 at 02:33:55PM +0100, Lee Jones wrote:
> On Thu, 09 Oct 2014, Guenter Roeck wrote:
> 
> > On 10/09/2014 03:49 AM, Lee Jones wrote:
> > >On Thu, 09 Oct 2014, Catalin Marinas wrote:
> > >
> > >>On Tue, Oct 07, 2014 at 09:00:48AM +0100, Lee Jones wrote:
> > >>>On Mon, 06 Oct 2014, Guenter Roeck wrote:
> > >>>>--- a/drivers/mfd/ab8500-sysctrl.c
> > >>>>+++ b/drivers/mfd/ab8500-sysctrl.c
> > >>>>@@ -6,6 +6,7 @@
> > >>>
> > >>>[...]
> > >>>
> > >>>>+static int ab8500_power_off(struct notifier_block *this, unsigned long unused1,
> > >>>>+			    void *unused2)
> > >>>>  {
> > >>>>  	sigset_t old;
> > >>>>  	sigset_t all;
> > >>>>@@ -34,11 +36,6 @@ static void ab8500_power_off(void)
> > >>>>  	struct power_supply *psy;
> > >>>>  	int ret;
> > >>>>
> > >>>>-	if (sysctrl_dev == NULL) {
> > >>>>-		pr_err("%s: sysctrl not initialized\n", __func__);
> > >>>>-		return;
> > >>>>-	}
> > >>>
> > >>>Can you explain the purpose of this change please?
> > >>
> > >>I guess it's because the sysctrl_dev is already initialised when
> > >>registering the power_off handler, so there isn't a way to call the
> > >>above function with a NULL sysctrl_dev. Probably even with the original
> > >>code you didn't need this check (after some race fix in
> > >>ab8500_sysctrl_remove but races is one of the things Guenter's patches
> > >>try to address).
> > >
> > >Sounds reasonable, although I think this change should be part of
> > >another patch.
> > >
> > Sure, no problem. I'll split this into two patches.
> > 
> > Since we are at it, any idea what to do with the restart function
> > in the same file ? It is not used anywhere.
> 
> You can strip it out with Linus Walleij's Ack.  Or I'll be happy to do
> it?
> 
I'll strip it out in a 3rd patch.

Guenter

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Subject: Re: [PATCH 12/44] mfd: ab8500-sysctrl: Register with kernel poweroff
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Date: Thu, 9 Oct 2014 08:54:04 -0700
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On Thu, Oct 09, 2014 at 11:49:27AM +0100, Lee Jones wrote:
> On Thu, 09 Oct 2014, Catalin Marinas wrote:
> 
> > On Tue, Oct 07, 2014 at 09:00:48AM +0100, Lee Jones wrote:
> > > On Mon, 06 Oct 2014, Guenter Roeck wrote:
> > > > --- a/drivers/mfd/ab8500-sysctrl.c
> > > > +++ b/drivers/mfd/ab8500-sysctrl.c
> > > > @@ -6,6 +6,7 @@
> > > 
> > > [...]
> > > 
> > > > +static int ab8500_power_off(struct notifier_block *this, unsigned long unused1,
> > > > +			    void *unused2)
> > > >  {
> > > >  	sigset_t old;
> > > >  	sigset_t all;
> > > > @@ -34,11 +36,6 @@ static void ab8500_power_off(void)
> > > >  	struct power_supply *psy;
> > > >  	int ret;
> > > >  
> > > > -	if (sysctrl_dev == NULL) {
> > > > -		pr_err("%s: sysctrl not initialized\n", __func__);
> > > > -		return;
> > > > -	}
> > > 
> > > Can you explain the purpose of this change please?
> > 
> > I guess it's because the sysctrl_dev is already initialised when
> > registering the power_off handler, so there isn't a way to call the
> > above function with a NULL sysctrl_dev. Probably even with the original
> > code you didn't need this check (after some race fix in
> > ab8500_sysctrl_remove but races is one of the things Guenter's patches
> > try to address).
> 
> Sounds reasonable, although I think this change should be part of
> another patch.
> 
Turns out the options are to either drop the check or to use the device
managed function to register the poweroff handler. I decided to keep
the check and use the device managed function.

Guenter

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From: Pavel Machek <pavel@denx.de>
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Subject: Re: [PATCH 08/44] kernel: Move pm_power_off to common code
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Hi!

> >>@@ -184,6 +179,8 @@ machine_halt(void)
> >>  void
> >>  machine_power_off(void)
> >>  {
> >>+	do_kernel_poweroff();
> >>+
> >
> >poweroff -> power_off for consistency.
> >
> Dunno; matter of personal preference. I started with that, but ultimately went
> with poweroff to distinguish poweroff handler functions from existing code,
> specifically kernel_power_off().

That works for you, but once it is merged, it is ugly/confusing typo.
									Pavel

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From: Aaro Koskinen <aaro.koskinen@iki.fi>
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Subject: Re: systemd on hppa and number of free RT signals
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Hi,

On Tue, Oct 07, 2014 at 05:03:30PM -0400, Carlos O'Donell wrote:
> The only thing I will do different is make SIGEMT equal to SIGABRT,
> that way we preserve the semantics of what this operation means. Linux
> doesn't use SIGEMT, but it keeps hppa defining this for use by other
> software that might want similar semantics. You can catch SIGABRT and
> operate on it, so it's one way forward.

I tested Helge's SIGNAL_NEW patches by recompiling my small distro
(~100 packages) and only Tcl 8.6 complation breaks (duplicate case
value in tclPosixStr.c / Tcl_SignalMsg).

The current check they have is:

#if defined(SIGEMT) && (!defined(SIGXCPU) || (SIGEMT != SIGXCPU))
    case SIGEMT: return "SIGEMT";
#endif

A.
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Subject: Re: systemd on hppa and number of free RT signals
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On Thu, Oct 9, 2014 at 4:41 PM, Aaro Koskinen <aaro.koskinen@iki.fi> wrote:
> #if defined(SIGEMT) && (!defined(SIGXCPU) || (SIGEMT != SIGXCPU))
>     case SIGEMT: return "SIGEMT";
> #endif

Helge,

I withdraw my suggestion to make SIGEMT equal to SIGABRT. Just remove
it. It's not needed on Linux and just causes problems.

In this case it conflicts with SIGABRT in the case statement. Better
to just remove it.

Cheers,
Carlos.
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To: Carlos O'Donell <carlos@systemhalted.org>,
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Hi Aaro & Carlos,

On 10/09/2014 10:48 PM, Carlos O'Donell wrote:
> On Thu, Oct 9, 2014 at 4:41 PM, Aaro Koskinen <aaro.koskinen@iki.fi> wrote:
>> #if defined(SIGEMT) && (!defined(SIGXCPU) || (SIGEMT != SIGXCPU))
>>      case SIGEMT: return "SIGEMT";
>> #endif

Aaro, thanks a lot for testing !!!

> I withdraw my suggestion to make SIGEMT equal to SIGABRT. Just remove
> it. It's not needed on Linux and just causes problems.
>
> In this case it conflicts with SIGABRT in the case statement. Better
> to just remove it.

Yes, I agree.

Helge

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On 10/09/2014 01:24 PM, Pavel Machek wrote:
> Hi!
>
>>>> @@ -184,6 +179,8 @@ machine_halt(void)
>>>>   void
>>>>   machine_power_off(void)
>>>>   {
>>>> +	do_kernel_poweroff();
>>>> +
>>>
>>> poweroff -> power_off for consistency.
>>>
>> Dunno; matter of personal preference. I started with that, but ultimately went
>> with poweroff to distinguish poweroff handler functions from existing code,
>> specifically kernel_power_off().
>
> That works for you, but once it is merged, it is ugly/confusing typo.
> 									Pavel
>

Ok, no problem, I'll change it.

Guenter




From - Thu Nov 08 21:10:52 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Reduce SIGRTMIN from 37 to 32 to behave like other
 Linux architectures
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To: linux-parisc@vger.kernel.org,
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This patch reduces the value of SIGRTMIN on PARISC from 37 to 32, thus
increasing the number of available RT signals and bring it in sync with other
Linux architectures.

Historically we wanted to natively support HP-UX 32bit binaries with the
PA-RISC Linux port.  Because of that we carried the various available signals
from HP-UX (e.g. SIGEMT and SIGLOST) and folded them in between the native
Linux signals.  Although this was the right decision at that time, this
required us to increase SIGRTMIN to at least 37 which left us with 27 (64-37)
RT signals.

Those 27 RT signals haven't been a problem in the past, but with the upcoming
importance of systemd we now got the problem that systemd alloctes (hardcoded)
signals up to SIGRTMIN+29 which is beyond our NSIG of 64. Because of that we
have not been able to use systemd on the PARISC Linux port yet.

Of course we could ask the systemd developers to not use those hardcoded
values, but this change is very unlikely, esp. with PA-RISC being a niche
architecture.

The other possibility would be to increase NSIG to e.g. 128, but this would
mean to duplicate most of the existing Linux signal handling code into the
parisc specific Linux kernel tree which would most likely introduce lots of new
bugs beside the code duplication.

The third option is to drop some HP-UX signals and shuffle some other signals
around to bring SIGRTMIN to 32.  This is of course an ABI change, but testing
has shown that existing Linux installations are not visibly affected by this
change - most likely because we move those signals around which are rarely used
and move them to slots which haven't been used in Linux yet. In an existing
installation I was able to exchange either the Linux kernel or glibc (or both)
without affecting the boot process and installed applications.

Dropping the HP-UX signals isn't an issue either, since support for HP-UX was
basically dropped a few months back with Kernel 3.14 in commit
f5a408d53edef3af07ac7697b8bc54a755628450 already, when we changed EWOULDBLOCK
to be equal to EAGAIN.

So, even if this is an ABI change, it's better to change it now and thus bring
PARISC Linux in sync with other architectures to avoid other issues in the
future.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Carlos O'Donell <carlos@systemhalted.org>
Cc: John David Anglin <dave.anglin@bell.net>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: PARISC Linux Kernel Mailinglist <linux-parisc@vger.kernel.org>


diff --git a/arch/parisc/include/uapi/asm/signal.h b/arch/parisc/include/uapi/asm/signal.h
index f5645d6..10df707 100644
--- a/arch/parisc/include/uapi/asm/signal.h
+++ b/arch/parisc/include/uapi/asm/signal.h
@@ -8,12 +8,12 @@
 #define SIGTRAP		 5
 #define SIGABRT		 6
 #define SIGIOT		 6
-#define SIGEMT		 7
+#define SIGSTKFLT	 7
 #define SIGFPE		 8
 #define SIGKILL		 9
 #define SIGBUS		10
 #define SIGSEGV		11
-#define SIGSYS		12 /* Linux doesn't use this */
+#define SIGXCPU		12
 #define SIGPIPE		13
 #define SIGALRM		14
 #define SIGTERM		15
@@ -32,16 +32,12 @@
 #define SIGTTIN		27
 #define SIGTTOU		28
 #define SIGURG		29
-#define SIGLOST		30 /* Linux doesn't use this either */
-#define	SIGUNUSED	31
-#define SIGRESERVE	SIGUNUSED

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From: Aaro Koskinen <aaro.koskinen@iki.fi>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Reduce SIGRTMIN from 37 to 32 to behave like
 other Linux architectures
Date: Fri, 10 Oct 2014 23:56:15 +0300
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Hi,

On Fri, Oct 10, 2014 at 10:20:17PM +0200, Helge Deller wrote:
> Signed-off-by: Helge Deller <deller@gmx.de>
> Cc: Carlos O'Donell <carlos@systemhalted.org>
> Cc: John David Anglin <dave.anglin@bell.net>
> Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
> Cc: Aaro Koskinen <aaro.koskinen@iki.fi>

Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>

A.
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From - Thu Nov 08 21:10:52 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc architecture patch for v3.18
Date: Sun, 12 Oct 2014 12:08:37 +0200
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Hi Linus,

please pull one patch for the parisc architecture for kernel 3.18 from 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.18-1

This patch intentionally breaks the ABI on PARISC Linux!

It assigns new numbers to SIGSTKFLT, SIGXCPU, SIGXFSZ and SIGSYS so that
those are below 32 and thus leaves us with 32 RT signals like other
Linux architectures (SIGRTMIN now becomes 32 instead of 37).

Even if it breaks the ABI, it doesn't seem to have any visible impact on
existing userspace applications. I was able to mix new kernel and/or
glibc without impacting normal bootup.  So, even if it breaks the ABI,
the benefits (e.g. being able to use systemd on PARISC Linux)
outperforms the minimal (if any) impact it gives.

The patch has been discussed on the parisc kernel mailing list and the
coresponding glibc patch will be committed by the parisc glibc
maintainer after this patch went into 3.18.

Some more background information about this patch is in the commit
message.

Thanks,
Helge 

----------------------------------------------------------------
Helge Deller (1):
      parisc: Reduce SIGRTMIN from 37 to 32 to behave like other Linux architectures

 arch/parisc/include/uapi/asm/signal.h | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)
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From - Thu Nov 08 21:10:52 2018
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From: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
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Subject: Re: [GIT PULL] parisc architecture patch for v3.18
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On Sun, 12 Oct 2014 12:08:37 +0200
Helge Deller <deller@gmx.de> wrote:

> Hi Linus,
> 
> please pull one patch for the parisc architecture for kernel 3.18 from 
>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.18-1
> 
> This patch intentionally breaks the ABI on PARISC Linux!
> 
> It assigns new numbers to SIGSTKFLT, SIGXCPU, SIGXFSZ and SIGSYS so that
> those are below 32 and thus leaves us with 32 RT signals like other
> Linux architectures (SIGRTMIN now becomes 32 instead of 37).
> 
> Even if it breaks the ABI, it doesn't seem to have any visible impact on
> existing userspace applications.

I somehow doubt your kill command magically corrects its signal numbering
table. Likewise what does gdb do given a core dump that died from one of
those signals, and what does your shell report if you kill one that way.
It seems to me your minimal set of binaries to swap to get it right is
non-zero but not problematic (libc, kill, shells, top, gdb) ?

I can however really only think of one app that actually *used* SIGXCPU,
and that was to respawn itself to avoid annoying sysadmin set CPU limits
anyway.

Alan
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From - Thu Nov 08 21:10:53 2018
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Subject: Re: [GIT PULL] parisc architecture patch for v3.18
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On 10/13/2014 03:41 PM, One Thousand Gnomes wrote:
> On Sun, 12 Oct 2014 12:08:37 +0200
> Helge Deller <deller@gmx.de> wrote:
>
>> Hi Linus,
>>
>> please pull one patch for the parisc architecture for kernel 3.18 from
>>    git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.18-1
>>
>> This patch intentionally breaks the ABI on PARISC Linux!
>>
>> It assigns new numbers to SIGSTKFLT, SIGXCPU, SIGXFSZ and SIGSYS so that
>> those are below 32 and thus leaves us with 32 RT signals like other
>> Linux architectures (SIGRTMIN now becomes 32 instead of 37).
>>
>> Even if it breaks the ABI, it doesn't seem to have any visible impact on
>> existing userspace applications.
>
> I somehow doubt your kill command magically corrects its signal numbering
> table. Likewise what does gdb do given a core dump that died from one of
> those signals, and what does your shell report if you kill one that way.
> It seems to me your minimal set of binaries to swap to get it right is
> non-zero but not problematic (libc, kill, shells, top, gdb) ?

My patch of course just marks the start of a transition phase, in which
some few applications need to be rebuilt (libc as the most important one).
But after all it makes a somewhat smooth transition possible, and as I
wrote in the commit message this is the best solution (out of 3) with the
least impact which we have.
  
> I can however really only think of one app that actually *used* SIGXCPU,
> and that was to respawn itself to avoid annoying sysadmin set CPU limits
> anyway.

:-)

Helge
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Hi,

On Mon, Oct 13, 2014 at 10:24:53PM +0200, Helge Deller wrote:
> On 10/13/2014 03:41 PM, One Thousand Gnomes wrote:
> >I somehow doubt your kill command magically corrects its signal numbering
> >table. Likewise what does gdb do given a core dump that died from one of
> >those signals, and what does your shell report if you kill one that way.
> >It seems to me your minimal set of binaries to swap to get it right is
> >non-zero but not problematic (libc, kill, shells, top, gdb) ?
> 
> My patch of course just marks the start of a transition phase, in which
> some few applications need to be rebuilt (libc as the most important one).

Busybox handles changed signals correctly after rebuilding against
new headers. Based on quick look, GDB has never known about
PA-RISC specific numbers, so it has probably always reported some
wrong signal name...

A.
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From: Guenter Roeck <linux@roeck-us.net>
>  arch/m32r/kernel/process.c         |  8 ++++----

Acked-by: Hirokazu Takata <takata@linux-m32r.org>

Thank you.

-- takata



From - Thu Nov 08 21:10:53 2018
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From: Guenter Roeck <linux@roeck-us.net>
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Subject: [PATCH v2 08/47] kernel: Move pm_power_off to common code
Date: Mon, 20 Oct 2014 21:12:24 -0700
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pm_power_off is defined for all architectures. Move it to common code.

Have all architectures call do_kernel_power_off instead of pm_power_off.
Some architectures point pm_power_off to machine_power_off. For those,
call do_kernel_power_off from machine_power_off instead.

Acked-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
Acked-by: Richard Weinberger <richard@nod.at>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
v2:
- do_kernel_poweroff -> do_kernel_power_off
- have_kernel_poweroff -> have_kernel_power_off

 arch/alpha/kernel/process.c        |  9 +++------
 arch/arc/kernel/reset.c            |  5 +----
 arch/arm/kernel/process.c          |  5 +----
 arch/arm64/kernel/process.c        |  5 +----
 arch/avr32/kernel/process.c        |  6 +-----
 arch/blackfin/kernel/process.c     |  3 ---
 arch/blackfin/kernel/reboot.c      |  2 ++
 arch/c6x/kernel/process.c          |  9 +--------
 arch/cris/kernel/process.c         |  4 +---
 arch/frv/kernel/process.c          |  5 ++---
 arch/hexagon/kernel/reset.c        |  5 ++---
 arch/ia64/kernel/process.c         |  5 +----
 arch/m32r/kernel/process.c         |  8 ++++----
 arch/m68k/kernel/process.c         |  6 +-----
 arch/metag/kernel/process.c        |  6 +-----
 arch/microblaze/kernel/process.c   |  3 ---
 arch/microblaze/kernel/reset.c     |  1 +
 arch/mips/kernel/reset.c           |  6 +-----
 arch/mn10300/kernel/process.c      |  8 ++------
 arch/openrisc/kernel/process.c     |  8 +++++---
 arch/parisc/kernel/process.c       |  8 ++++----
 arch/powerpc/kernel/setup-common.c |  6 +++---
 arch/s390/kernel/setup.c           |  8 ++------
 arch/score/kernel/process.c        |  8 ++++----
 arch/sh/kernel/reboot.c            |  6 +-----
 arch/sparc/kernel/process_32.c     | 10 ++--------
 arch/sparc/kernel/reboot.c         |  8 ++------
 arch/tile/kernel/reboot.c          |  7 +++----
 arch/um/kernel/reboot.c            |  2 --
 arch/unicore32/kernel/process.c    |  9 +--------
 arch/x86/kernel/reboot.c           | 11 +++--------
 arch/x86/xen/enlighten.c           |  3 +--
 arch/xtensa/kernel/process.c       |  4 ----
 drivers/parisc/power.c             |  3 +--
 kernel/power/poweroff_handler.c    |  8 ++++++++
 kernel/reboot.c                    |  4 ++--
 36 files changed, 68 insertions(+), 146 deletions(-)

diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 1941a07..81c43f8 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -24,6 +24,7 @@
 #include <linux/vt.h>
 #include <linux/mman.h>
 #include <linux/elfcore.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
 #include <linux/tty.h>
 #include <linux/console.h>
@@ -40,12 +41,6 @@
 #include "proto.h"
 #include "pci_impl.h"
 
-/*
- * Power off function, if any
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 #ifdef CONFIG_ALPHA_WTINT
 /*
  * Sleep the CPU.
@@ -184,6 +179,8 @@ machine_halt(void)
 void
 machine_power_off(void)
 {
+	do_kernel_power_off();
+
 	common_shutdown(LINUX_REBOOT_CMD_POWER_OFF, NULL);
 }
 
diff --git a/arch/arc/kernel/reset.c b/arch/arc/kernel/reset.c
index 2768fa1..0758d9d 100644
--- a/arch/arc/kernel/reset.c
+++ b/arch/arc/kernel/reset.c
@@ -26,9 +26,6 @@ void machine_restart(char *__unused)
 
 void machine_power_off(void)
 {
-	/* FIXME ::  power off ??? */
+	do_kernel_power_off();
 	machine_halt();
 }
-
-void (*pm_power_off) (void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index fe972a2..aa3f656 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -117,8 +117,6 @@ void soft_restart(unsigned long addr)
 /*
  * Function pointers to optional machine specific functions
  */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
 
 void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
 
@@ -205,8 +203,7 @@ void machine_power_off(void)
 	local_irq_disable();
 	smp_send_stop();
 
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 /*
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index c3065db..46a483a 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -68,8 +68,6 @@ void soft_restart(unsigned long addr)
 /*
  * Function pointers to optional machine specific functions
  */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL_GPL(pm_power_off);
 
 void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
 
@@ -129,8 +127,7 @@ void machine_power_off(void)
 {
 	local_irq_disable();
 	smp_send_stop();
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 /*
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 42a53e74..529c1f6 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -23,9 +23,6 @@
 
 #include <mach/pm.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * This file handles the architecture-dependent parts of process handling..
  */
@@ -48,8 +45,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 void machine_restart(char *cmd)
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 4aa5545..812dd83 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -39,9 +39,6 @@ int nr_l1stack_tasks;
 void *l1_stack_base;
 unsigned long l1_stack_len;
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * The idle loop on BFIN
  */
diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
index c4f50a3..387d610 100644
--- a/arch/blackfin/kernel/reboot.c
+++ b/arch/blackfin/kernel/reboot.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/interrupt.h>
+#include <linux/pm.h>
 #include <asm/bfin-global.h>
 #include <asm/reboot.h>
 #include <asm/bfrom.h>
@@ -106,6 +107,7 @@ void machine_halt(void)
 __attribute__((weak))
 void native_machine_power_off(void)
 {
+	do_kernel_power_off();
 	idle_with_irq_disabled();
 }
 
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 57d2ea8..edf7e5a 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -27,12 +27,6 @@ void	(*c6x_halt)(void);
 extern asmlinkage void ret_from_fork(void);
 extern asmlinkage void ret_from_kernel_thread(void);
 
-/*
- * power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void arch_cpu_idle(void)
 {
 	unsigned long tmp;
@@ -73,8 +67,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	halt_loop();
 }
 
diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index b78498e..9ebd76b 100644
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -31,9 +31,6 @@
 
 extern void default_idle(void);
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void arch_cpu_idle(void)
 {
 	default_idle();
@@ -60,6 +57,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
+	do_kernel_power_off();
 }
 
 /*
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index 5d40aeb77..502dabb 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -42,9 +42,6 @@ asmlinkage void ret_from_kernel_thread(void);
 
 #include <asm/pgalloc.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 static void core_sleep_idle(void)
 {
 #ifdef LED_DEBUG_SLEEP
@@ -107,6 +104,8 @@ void machine_power_off(void)
 	gdbstub_exit(0);
 #endif
 
+	do_kernel_power_off();
+
 	for (;;);
 }
 
diff --git a/arch/hexagon/kernel/reset.c b/arch/hexagon/kernel/reset.c
index 76483c1..6f607b6 100644
--- a/arch/hexagon/kernel/reset.c
+++ b/arch/hexagon/kernel/reset.c
@@ -16,11 +16,13 @@
  * 02110-1301, USA.
  */
 
+#include <linux/pm.h>
 #include <linux/smp.h>
 #include <asm/hexagon_vm.h>
 
 void machine_power_off(void)
 {
+	do_kernel_power_off();
 	smp_send_stop();
 	__vmstop();
 }
@@ -32,6 +34,3 @@ void machine_halt(void)
 void machine_restart(char *cmd)
 {
 }
-
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index b515149..88121a2 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -57,8 +57,6 @@ void (*ia64_mark_idle)(int);
 
 unsigned long boot_option_idle_override = IDLE_NO_OVERRIDE;
 EXPORT_SYMBOL(boot_option_idle_override);
-void (*pm_power_off) (void);
-EXPORT_SYMBOL(pm_power_off);
 
 void
 ia64_do_show_stack (struct unw_frame_info *info, void *arg)
@@ -675,8 +673,7 @@ machine_halt (void)
 void
 machine_power_off (void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	machine_halt();
 }
 
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index e69221d..65a037e 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -23,6 +23,7 @@
 #include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/module.h>
+#include <linux/pm.h>
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
 #include <linux/hardirq.h>
@@ -44,9 +45,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 	return tsk->thread.lr;
 }
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_restart(char *__unused)
 {
 #if defined(CONFIG_PLAT_MAPPI3)
@@ -67,7 +65,9 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	/* M32R_FIXME */
+	do_kernel_power_off();
+	for (;;)
+		;
 }
 
 void show_regs(struct pt_regs * regs)
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index afe3d6e..bbc0a63 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -78,14 +78,10 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	for (;;);
 }
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 void show_regs(struct pt_regs * regs)
 {
 	printk("\n");
diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
index 483dff9..8d95773 100644
--- a/arch/metag/kernel/process.c
+++ b/arch/metag/kernel/process.c
@@ -67,9 +67,6 @@ void arch_cpu_idle_dead(void)
 }
 #endif
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void (*soc_restart)(char *cmd);
 void (*soc_halt)(void);
 
@@ -90,8 +87,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	smp_send_stop();
 	hard_processor_halt(HALT_OK);
 }
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index b2dd371..0ebca36 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -44,9 +44,6 @@ void show_regs(struct pt_regs *regs)
 				regs->msr, regs->ear, regs->esr, regs->fsr);
 }
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void flush_thread(void)
 {
 }
diff --git a/arch/microblaze/kernel/reset.c b/arch/microblaze/kernel/reset.c
index fbe58c6..2c6b32c 100644
--- a/arch/microblaze/kernel/reset.c
+++ b/arch/microblaze/kernel/reset.c
@@ -103,6 +103,7 @@ void machine_halt(void)
 void machine_power_off(void)
 {
 	pr_notice("Machine power off...\n");
+	do_kernel_power_off();
 	while (1)
 		;
 }
diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
index 07fc524..09e74d2 100644
--- a/arch/mips/kernel/reset.c
+++ b/arch/mips/kernel/reset.c
@@ -21,9 +21,6 @@
  */
 void (*_machine_restart)(char *command);
 void (*_machine_halt)(void);
-void (*pm_power_off)(void);
-
-EXPORT_SYMBOL(pm_power_off);
 
 void machine_restart(char *command)
 {
@@ -39,6 +36,5 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 3707da5..c78b2eb 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -20,6 +20,7 @@
 #include <linux/user.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
 #include <linux/percpu.h>
 #include <linux/err.h>
@@ -45,12 +46,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 }
 
 /*
- * power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
-/*
  * On SMP it's slightly faster (but much more power-consuming!)
  * to poll the ->work.need_resched flag instead of waiting for the
  * cross-CPU IPI to arrive. Use this option with caution.
@@ -93,6 +88,7 @@ void machine_power_off(void)
 #ifdef CONFIG_KERNEL_DEBUGGER
 	gdbstub_exit(0);
 #endif
+	do_kernel_power_off();
 }
 
 void show_regs(struct pt_regs *regs)
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index 386af25..494afd2 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -25,6 +25,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mm.h>
+#include <linux/pm.h>
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
@@ -51,7 +52,7 @@
  */
 struct thread_info *current_thread_info_set[NR_CPUS] = { &init_thread_info, };
 
-void machine_restart(void)
+void machine_restart(char *cmd)
 {
 	printk(KERN_INFO "*** MACHINE RESTART ***\n");
 	__asm__("l.nop 1");
@@ -72,11 +73,12 @@ void machine_halt(void)
 void machine_power_off(void)
 {
 	printk(KERN_INFO "*** MACHINE POWER OFF ***\n");
+
+	do_kernel_power_off();
+
 	__asm__("l.nop 1");
 }
 
-void (*pm_power_off) (void) = machine_power_off;
-
 /*
  * When a process does an "exec", machine state like FPU and debug
  * registers need to be reset.  This is a hook function for that.
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 0bbbf0d..3f5d14a 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -41,6 +41,7 @@
 #include <linux/fs.h>
 #include <linux/module.h>
 #include <linux/personality.h>
+#include <linux/pm.h>
 #include <linux/ptrace.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
@@ -133,7 +134,9 @@ void machine_power_off(void)
 	pdc_soft_power_button(0);
 	
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
-		
+
+	do_kernel_power_off();
+
 	/* It seems we have no way to power the system off via
 	 * software. The user has to press the button himself. */
 
@@ -141,9 +144,6 @@ void machine_power_off(void)
 	       "Please power this system off now.");
 }
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * Free current thread data structures etc..
  */
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 1362cd6..5b7a851 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -141,6 +141,9 @@ void machine_power_off(void)
 	machine_shutdown();
 	if (ppc_md.power_off)
 		ppc_md.power_off();
+
+	do_kernel_power_off();
+
 #ifdef CONFIG_SMP
 	smp_send_stop();
 #endif
@@ -151,9 +154,6 @@ void machine_power_off(void)
 /* Used by the G5 thermal driver */
 EXPORT_SYMBOL_GPL(machine_power_off);
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL_GPL(pm_power_off);
-
 void machine_halt(void)
 {
 	machine_shutdown();
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index e80d9ff..267e025 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -263,13 +263,9 @@ void machine_power_off(void)
 		 */
 		console_unblank();
 	_machine_power_off();
-}
 
-/*
- * Dummy power off function.
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL_GPL(pm_power_off);
+	do_kernel_power_off();
+}
 
 static int __init early_parse_mem(char *p)
 {
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index a1519ad3..b76ea67 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -29,9 +29,6 @@
 #include <linux/pm.h>
 #include <linux/rcupdate.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 /* If or when software machine-restart is implemented, add code here. */
 void machine_restart(char *command) {}
 
@@ -39,7 +36,10 @@ void machine_restart(char *command) {}
 void machine_halt(void) {}
 
 /* If or when software machine-power-off is implemented, add code here. */
-void machine_power_off(void) {}
+void machine_power_off(void)
+{
+	do_kernel_power_off();
+}
 
 void ret_from_fork(void);
 void ret_from_kernel_thread(void);
diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c
index 04afe5b..065de12 100644
--- a/arch/sh/kernel/reboot.c
+++ b/arch/sh/kernel/reboot.c
@@ -11,9 +11,6 @@
 #include <asm/tlbflush.h>
 #include <asm/traps.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 #ifdef CONFIG_SUPERH32
 static void watchdog_trigger_immediate(void)
 {
@@ -51,8 +48,7 @@ static void native_machine_shutdown(void)
 
 static void native_machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 static void native_machine_halt(void)
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 50e7b62..cb8148a 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -48,14 +48,6 @@
  */
 void (*sparc_idle)(void);
 
-/* 
- * Power-off handler instantiation for pm.h compliance
- * This is done via auxio, but could be used as a fallback
- * handler when auxio is not present-- unused for now...
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * sysctl - toggle power-off restriction for serial console 
  * systems in machine_power_off()
@@ -112,6 +104,8 @@ void machine_power_off(void)
 		sbus_writeb(power_register, auxio_power_register);
 	}
 
+	do_kernel_power_off();
+
 	machine_halt();
 }
 
diff --git a/arch/sparc/kernel/reboot.c b/arch/sparc/kernel/reboot.c
index eba7d91..3c0bb03 100644
--- a/arch/sparc/kernel/reboot.c
+++ b/arch/sparc/kernel/reboot.c
@@ -16,17 +16,13 @@
  */
 int scons_pwroff = 1;
 
-/* This isn't actually used, it exists merely to satisfy the
- * reference in kernel/sys.c
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_power_off(void)
 {
 	if (strcmp(of_console_device->type, "serial") || scons_pwroff)
 		prom_halt_power_off();
 
+	do_kernel_power_off();
+
 	prom_halt();
 }
 
diff --git a/arch/tile/kernel/reboot.c b/arch/tile/kernel/reboot.c
index 6c5d2c0..8ff4a7f 100644
--- a/arch/tile/kernel/reboot.c
+++ b/arch/tile/kernel/reboot.c
@@ -36,6 +36,9 @@ void machine_power_off(void)
 {
 	arch_local_irq_disable_all();
 	smp_send_stop();
+
+	do_kernel_power_off();
+
 	hv_power_off();
 }
 
@@ -45,7 +48,3 @@ void machine_restart(char *cmd)
 	smp_send_stop();
 	hv_restart((HV_VirtAddr) "vmlinux", (HV_VirtAddr) cmd);
 }
-
-/* No interesting distinction to be made here. */
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index ced8903..a82ef28 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -11,8 +11,6 @@
 #include <os.h>
 #include <skas.h>
 
-void (*pm_power_off)(void);
-
 static void kill_off_processes(void)
 {
 	if (proc_mm)
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index b008e99..9490dd5 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -56,16 +56,9 @@ void machine_halt(void)
 	gpio_set_value(GPO_SOFT_OFF, 0);
 }
 
-/*
- * Function pointers to optional machine specific functions
- */
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	machine_halt();
 }
 
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 17962e6..5c09e28 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -30,12 +30,6 @@
 #include <asm/x86_init.h>
 #include <asm/efi.h>
 
-/*
- * Power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 static const struct desc_ptr no_idt = {};
 
 /*
@@ -647,11 +641,12 @@ static void native_machine_halt(void)
 
 static void native_machine_power_off(void)
 {
-	if (pm_power_off) {
+	if (have_kernel_power_off()) {
 		if (!reboot_force)
 			machine_shutdown();
-		pm_power_off();
+		do_kernel_power_off();
 	}
+
 	/* A fallback in case there is no PM info available */
 	tboot_shutdown(TB_SHUTDOWN_HALT);
 }
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 1a3f044..c2c1d74 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1320,8 +1320,7 @@ static void xen_machine_halt(void)
 
 static void xen_machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	xen_reboot(SHUTDOWN_poweroff);
 }
 
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 1c85323..c487296 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -49,10 +49,6 @@ extern void ret_from_kernel_thread(void);
 
 struct task_struct *current_set[NR_CPUS] = {&init_task, };
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
-
 #if XTENSA_HAVE_COPROCESSORS
 
 void coprocessor_release_all(struct thread_info *ti)
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index ef31b77..f10cf92 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -95,8 +95,7 @@ static void process_shutdown(void)
 		/* send kill signal */
 		if (kill_cad_pid(SIGINT, 1)) {
 			/* just in case killing init process failed */
-			if (pm_power_off)
-				pm_power_off();
+			kernel_power_off();
 		}
 	}
 }
diff --git a/kernel/power/poweroff_handler.c b/kernel/power/poweroff_handler.c
index aeb4736..37f0b88 100644
--- a/kernel/power/poweroff_handler.c
+++ b/kernel/power/poweroff_handler.c
@@ -22,6 +22,12 @@
 #include <linux/types.h>
 
 /*
+ * If set, calling this function will power off the system immediately.
+ */
+void (*pm_power_off)(void);
+EXPORT_SYMBOL(pm_power_off);
+
+/*
  *	Notifier list for kernel code which wants to be called
  *	to power off the system.
  */
@@ -236,6 +242,8 @@ EXPORT_SYMBOL(devm_register_power_off_handler);
 void do_kernel_power_off(void)
 {
 	spin_lock(&power_off_handler_lock);
+	if (pm_power_off)
+		pm_power_off();
 	raw_notifier_call_chain(&power_off_handler_list, 0, NULL);
 	spin_unlock(&power_off_handler_lock);
 }
diff --git a/kernel/reboot.c b/kernel/reboot.c
index 5925f5a..0930851 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c
@@ -306,9 +306,9 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd,
 		return ret;
 
 	/* Instead of trying to make the power_off code look like
-	 * halt when pm_power_off is not set do it the easy way.
+	 * halt when no poweroff handler exists do it the easy way.
 	 */
-	if ((cmd == LINUX_REBOOT_CMD_POWER_OFF) && !pm_power_off)
+	if (cmd == LINUX_REBOOT_CMD_POWER_OFF && !have_kernel_power_off())
 		cmd = LINUX_REBOOT_CMD_HALT;
 
 	mutex_lock(&reboot_mutex);
-- 
1.9.1


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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 8667f18..5f5c037 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -833,8 +833,9 @@
 #define __NR_seccomp		(__NR_Linux + 338)
 #define __NR_getrandom		(__NR_Linux + 339)
 #define __NR_memfd_create	(__NR_Linux + 340)
+#define __NR_bpf		(__NR_Linux + 341)
 
-#define __NR_Linux_syscalls	(__NR_memfd_create + 1)
+#define __NR_Linux_syscalls	(__NR_bpf + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index b563d9c..d65c50a 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -436,6 +436,7 @@
 	ENTRY_SAME(seccomp)
 	ENTRY_SAME(getrandom)
 	ENTRY_SAME(memfd_create)	/* 340 */
+	ENTRY_SAME(bpf)
 
 	/* Nothing yet */
 
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: use BUILD_BUG() instead of undefined functions
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 4006964..a5cb070 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -9,6 +9,8 @@
 #include <asm/errno.h>
 #include <asm-generic/uaccess-unaligned.h>
 
+#include <linux/bug.h>
+
 #define VERIFY_READ 0
 #define VERIFY_WRITE 1
 
@@ -28,11 +30,6 @@
  * that put_user is the same as __put_user, etc.
  */
 
-extern int __get_kernel_bad(void);
-extern int __get_user_bad(void);
-extern int __put_kernel_bad(void);
-extern int __put_user_bad(void);
-
 static inline long access_ok(int type, const void __user * addr,
 		unsigned long size)
 {
@@ -43,8 +40,8 @@ static inline long access_ok(int type, const void __user * addr,
 #define get_user __get_user
 
 #if !defined(CONFIG_64BIT)
-#define LDD_KERNEL(ptr)		__get_kernel_bad();
-#define LDD_USER(ptr)		__get_user_bad();
+#define LDD_KERNEL(ptr)		BUILD_BUG()
+#define LDD_USER(ptr)		BUILD_BUG()
 #define STD_KERNEL(x, ptr)	__put_kernel_asm64(x,ptr)
 #define STD_USER(x, ptr)	__put_user_asm64(x,ptr)
 #define ASM_WORD_INSN		".word\t"
@@ -94,7 +91,7 @@ struct exception_data {
 	    case 2: __get_kernel_asm("ldh",ptr); break; \
 	    case 4: __get_kernel_asm("ldw",ptr); break; \
 	    case 8: LDD_KERNEL(ptr); break;		\
-	    default: __get_kernel_bad(); break;         \
+	    default: BUILD_BUG(); break;		\
 	    }                                           \
 	}                                               \
 	else {                                          \
@@ -103,7 +100,7 @@ struct exception_data {
 	    case 2: __get_user_asm("ldh",ptr); break;   \
 	    case 4: __get_user_asm("ldw",ptr); break;   \
 	    case 8: LDD_USER(ptr);  break;		\
-	    default: __get_user_bad(); break;           \
+	    default: BUILD_BUG(); break;		\
 	    }                                           \
 	}                                               \
 							\
@@ -136,7 +133,7 @@ struct exception_data {
 	    case 2: __put_kernel_asm("sth",__x,ptr); break;     \
 	    case 4: __put_kernel_asm("stw",__x,ptr); break;     \
 	    case 8: STD_KERNEL(__x,ptr); break;			\
-	    default: __put_kernel_bad(); break;			\
+	    default: BUILD_BUG(); break;			\
 	    }                                                   \
 	}                                                       \
 	else {                                                  \
@@ -145,7 +142,7 @@ struct exception_data {
 	    case 2: __put_user_asm("sth",__x,ptr); break;       \
 	    case 4: __put_user_asm("stw",__x,ptr); break;       \
 	    case 8: STD_USER(__x,ptr); break;			\
-	    default: __put_user_bad(); break;			\
+	    default: BUILD_BUG(); break;			\
 	    }                                                   \
 	}                                                       \
 								\
--
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From - Thu Nov 08 21:10:53 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix out-of-register compiler error in ldcw inline
 assembler function
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To: linux-parisc@vger.kernel.org,
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Sometimes we face this compiler error:

arch/parisc/include/asm/ldcw.h:39:2: error: can't find a register in class 'R1_REGS' while reloading 'asm'
	__asm__ __volatile__(__LDCW " 0(%2),%0"...
	note: in expansion of macro '__ldcw'
	error: 'asm' operand has impossible constraints

Dave suggested:
Likely the problem can be fixed by making __ldcw a static inline function and
forcing the argument 'a' to a specific register before using in ldcw.

Since it's not easy to reproduce this bug, this patch now tries to still let
the compiler decide on which register should be used. If it doesn't work, we'll
have to assign a specific register as suggested by Dave.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: John David Anglin <dave.anglin@bell.net>

diff --git a/arch/parisc/include/asm/ldcw.h b/arch/parisc/include/asm/ldcw.h
index d2d11b7..b951e01 100644
--- a/arch/parisc/include/asm/ldcw.h
+++ b/arch/parisc/include/asm/ldcw.h
@@ -34,12 +34,14 @@
 #endif /*!CONFIG_PA20*/
 
 /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
-#define __ldcw(a) ({						\
-	unsigned __ret;						\
-	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
-		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
-	__ret;							\
-})
+static inline unsigned int __ldcw(volatile unsigned int *address)
+{
+	unsigned int ret;
+	register volatile unsigned int *a = address;
+	__asm__ __volatile__(__LDCW " 0(%2),%0"
+		: "=r" (ret), "+m" (*(a)) : "r" (a));
+	return ret;
+}
 
 #ifdef CONFIG_SMP
 # define __lock_aligned __attribute__((__section__(".data..lock_aligned")))
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From - Thu Nov 08 21:10:53 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: fix out-of-register compiler error in ldcw inline
 assembler function
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On 10/21/2014 3:46 PM, Helge Deller wrote:
>   /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
> -#define __ldcw(a) ({						\
> -	unsigned __ret;						\
> -	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
> -		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
> -	__ret;							\
> -})
> +static inline unsigned int __ldcw(volatile unsigned int *address)
> +{
> +	unsigned int ret;
> +	register volatile unsigned int *a = address;
> +	__asm__ __volatile__(__LDCW " 0(%2),%0"
> +		: "=r" (ret), "+m" (*(a)) : "r" (a));
> +	return ret;
> +}
You could keep the old macro version for 32-bit builds as the problem 
shouldn't occur there.

Dave

-- 
John David Anglin    dave.anglin@bell.net

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From - Thu Nov 08 21:10:53 2018
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From: Ralf Baechle <ralf@linux-mips.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.power-management.general,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.openrisc,gmane.linux.ports.m68k,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user
Subject: Re: [PATCH v2 08/47] kernel: Move pm_power_off to common code
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On Mon, Oct 20, 2014 at 09:12:24PM -0700, Guenter Roeck wrote:

> pm_power_off is defined for all architectures. Move it to common code.
> 
> Have all architectures call do_kernel_power_off instead of pm_power_off.
> Some architectures point pm_power_off to machine_power_off. For those,
> call do_kernel_power_off from machine_power_off instead.
> 
> Acked-by: David Vrabel <david.vrabel@citrix.com>
> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Acked-by: Hirokazu Takata <takata@linux-m32r.org>
> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
> Acked-by: Max Filippov <jcmvbkbc@gmail.com>
> Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
> Acked-by: Richard Weinberger <richard@nod.at>
> Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Acked-by: Ralf Baechle <ralf@linux-mips.org>



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Subject: Re: [PATCH v2 08/47] kernel: Move pm_power_off to common code
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To: Ralf Baechle <ralf@linux-mips.org>
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On Wed, Oct 22, 2014 at 05:31:36PM +0200, Ralf Baechle wrote:
> On Mon, Oct 20, 2014 at 09:12:24PM -0700, Guenter Roeck wrote:
> 
> > pm_power_off is defined for all architectures. Move it to common code.
> > 
> > Have all architectures call do_kernel_power_off instead of pm_power_off.
> > Some architectures point pm_power_off to machine_power_off. For those,
> > call do_kernel_power_off from machine_power_off instead.
> > 
> > Acked-by: David Vrabel <david.vrabel@citrix.com>
> > Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
> > Acked-by: Hirokazu Takata <takata@linux-m32r.org>
> > Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
> > Acked-by: Max Filippov <jcmvbkbc@gmail.com>
> > Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
> > Acked-by: Richard Weinberger <richard@nod.at>
> > Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
> > Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> 
> Acked-by: Ralf Baechle <ralf@linux-mips.org>

Thanks!

Guenter

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From: James Hogan <james.hogan@imgtec.com>
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Subject: Re: [PATCH v2 08/47] kernel: Move pm_power_off to common
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Hi Guenter,

On 21/10/14 05:12, Guenter Roeck wrote:
> pm_power_off is defined for all architectures. Move it to common code.
> 
> Have all architectures call do_kernel_power_off instead of pm_power_off.
> Some architectures point pm_power_off to machine_power_off. For those,
> call do_kernel_power_off from machine_power_off instead.
> 
> Acked-by: David Vrabel <david.vrabel@citrix.com>
> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Acked-by: Hirokazu Takata <takata@linux-m32r.org>
> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
> Acked-by: Max Filippov <jcmvbkbc@gmail.com>
> Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
> Acked-by: Richard Weinberger <richard@nod.at>
> Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>

For metag:
Acked-by: James Hogan <james.hogan@imgtec.com>

Thanks
James

> diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
> index 483dff9..8d95773 100644
> --- a/arch/metag/kernel/process.c
> +++ b/arch/metag/kernel/process.c
> @@ -67,9 +67,6 @@ void arch_cpu_idle_dead(void)
>  }
>  #endif
>  
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void (*soc_restart)(char *cmd);
>  void (*soc_halt)(void);
>  
> @@ -90,8 +87,7 @@ void machine_halt(void)
>  
>  void machine_power_off(void)
>  {
> -	if (pm_power_off)
> -		pm_power_off();
> +	do_kernel_power_off();
>  	smp_send_stop();
>  	hard_processor_halt(HALT_OK);
>  }

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Subject: Re: [PATCH v2 08/47] kernel: Move pm_power_off to common code
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Archived-At: <http://permalink.gmane.org/gmane.linux.power-management.general/51509>

Acked-by: Lennox Wu <lennox.wu@gmail.com>

2014-10-21 12:12 GMT+08:00 Guenter Roeck <linux@roeck-us.net>:
> pm_power_off is defined for all architectures. Move it to common code.
>
> Have all architectures call do_kernel_power_off instead of pm_power_off.
> Some architectures point pm_power_off to machine_power_off. For those,
> call do_kernel_power_off from machine_power_off instead.
>
> Acked-by: David Vrabel <david.vrabel@citrix.com>
> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Acked-by: Hirokazu Takata <takata@linux-m32r.org>
> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
> Acked-by: Max Filippov <jcmvbkbc@gmail.com>
> Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
> Acked-by: Richard Weinberger <richard@nod.at>
> Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
> v2:
> - do_kernel_poweroff -> do_kernel_power_off
> - have_kernel_poweroff -> have_kernel_power_off
>
>  arch/alpha/kernel/process.c        |  9 +++------
>  arch/arc/kernel/reset.c            |  5 +----
>  arch/arm/kernel/process.c          |  5 +----
>  arch/arm64/kernel/process.c        |  5 +----
>  arch/avr32/kernel/process.c        |  6 +-----
>  arch/blackfin/kernel/process.c     |  3 ---
>  arch/blackfin/kernel/reboot.c      |  2 ++
>  arch/c6x/kernel/process.c          |  9 +--------
>  arch/cris/kernel/process.c         |  4 +---
>  arch/frv/kernel/process.c          |  5 ++---
>  arch/hexagon/kernel/reset.c        |  5 ++---
>  arch/ia64/kernel/process.c         |  5 +----
>  arch/m32r/kernel/process.c         |  8 ++++----
>  arch/m68k/kernel/process.c         |  6 +-----
>  arch/metag/kernel/process.c        |  6 +-----
>  arch/microblaze/kernel/process.c   |  3 ---
>  arch/microblaze/kernel/reset.c     |  1 +
>  arch/mips/kernel/reset.c           |  6 +-----
>  arch/mn10300/kernel/process.c      |  8 ++------
>  arch/openrisc/kernel/process.c     |  8 +++++---
>  arch/parisc/kernel/process.c       |  8 ++++----
>  arch/powerpc/kernel/setup-common.c |  6 +++---
>  arch/s390/kernel/setup.c           |  8 ++------
>  arch/score/kernel/process.c        |  8 ++++----
>  arch/sh/kernel/reboot.c            |  6 +-----
>  arch/sparc/kernel/process_32.c     | 10 ++--------
>  arch/sparc/kernel/reboot.c         |  8 ++------
>  arch/tile/kernel/reboot.c          |  7 +++----
>  arch/um/kernel/reboot.c            |  2 --
>  arch/unicore32/kernel/process.c    |  9 +--------
>  arch/x86/kernel/reboot.c           | 11 +++--------
>  arch/x86/xen/enlighten.c           |  3 +--
>  arch/xtensa/kernel/process.c       |  4 ----
>  drivers/parisc/power.c             |  3 +--
>  kernel/power/poweroff_handler.c    |  8 ++++++++
>  kernel/reboot.c                    |  4 ++--
>  36 files changed, 68 insertions(+), 146 deletions(-)
>
> diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
> index 1941a07..81c43f8 100644
> --- a/arch/alpha/kernel/process.c
> +++ b/arch/alpha/kernel/process.c
> @@ -24,6 +24,7 @@
>  #include <linux/vt.h>
>  #include <linux/mman.h>
>  #include <linux/elfcore.h>
> +#include <linux/pm.h>
>  #include <linux/reboot.h>
>  #include <linux/tty.h>
>  #include <linux/console.h>
> @@ -40,12 +41,6 @@
>  #include "proto.h"
>  #include "pci_impl.h"
>
> -/*
> - * Power off function, if any
> - */
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  #ifdef CONFIG_ALPHA_WTINT
>  /*
>   * Sleep the CPU.
> @@ -184,6 +179,8 @@ machine_halt(void)
>  void
>  machine_power_off(void)
>  {
> +       do_kernel_power_off();
> +
>         common_shutdown(LINUX_REBOOT_CMD_POWER_OFF, NULL);
>  }
>
> diff --git a/arch/arc/kernel/reset.c b/arch/arc/kernel/reset.c
> index 2768fa1..0758d9d 100644
> --- a/arch/arc/kernel/reset.c
> +++ b/arch/arc/kernel/reset.c
> @@ -26,9 +26,6 @@ void machine_restart(char *__unused)
>
>  void machine_power_off(void)
>  {
> -       /* FIXME ::  power off ??? */
> +       do_kernel_power_off();
>         machine_halt();
>  }
> -
> -void (*pm_power_off) (void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
> index fe972a2..aa3f656 100644
> --- a/arch/arm/kernel/process.c
> +++ b/arch/arm/kernel/process.c
> @@ -117,8 +117,6 @@ void soft_restart(unsigned long addr)
>  /*
>   * Function pointers to optional machine specific functions
>   */
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
>
>  void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
>
> @@ -205,8 +203,7 @@ void machine_power_off(void)
>         local_irq_disable();
>         smp_send_stop();
>
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>  }
>
>  /*
> diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
> index c3065db..46a483a 100644
> --- a/arch/arm64/kernel/process.c
> +++ b/arch/arm64/kernel/process.c
> @@ -68,8 +68,6 @@ void soft_restart(unsigned long addr)
>  /*
>   * Function pointers to optional machine specific functions
>   */
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL_GPL(pm_power_off);
>
>  void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
>
> @@ -129,8 +127,7 @@ void machine_power_off(void)
>  {
>         local_irq_disable();
>         smp_send_stop();
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>  }
>
>  /*
> diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
> index 42a53e74..529c1f6 100644
> --- a/arch/avr32/kernel/process.c
> +++ b/arch/avr32/kernel/process.c
> @@ -23,9 +23,6 @@
>
>  #include <mach/pm.h>
>
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  /*
>   * This file handles the architecture-dependent parts of process handling..
>   */
> @@ -48,8 +45,7 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>  }
>
>  void machine_restart(char *cmd)
> diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
> index 4aa5545..812dd83 100644
> --- a/arch/blackfin/kernel/process.c
> +++ b/arch/blackfin/kernel/process.c
> @@ -39,9 +39,6 @@ int nr_l1stack_tasks;
>  void *l1_stack_base;
>  unsigned long l1_stack_len;
>
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  /*
>   * The idle loop on BFIN
>   */
> diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
> index c4f50a3..387d610 100644
> --- a/arch/blackfin/kernel/reboot.c
> +++ b/arch/blackfin/kernel/reboot.c
> @@ -7,6 +7,7 @@
>   */
>
>  #include <linux/interrupt.h>
> +#include <linux/pm.h>
>  #include <asm/bfin-global.h>
>  #include <asm/reboot.h>
>  #include <asm/bfrom.h>
> @@ -106,6 +107,7 @@ void machine_halt(void)
>  __attribute__((weak))
>  void native_machine_power_off(void)
>  {
> +       do_kernel_power_off();
>         idle_with_irq_disabled();
>  }
>
> diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
> index 57d2ea8..edf7e5a 100644
> --- a/arch/c6x/kernel/process.c
> +++ b/arch/c6x/kernel/process.c
> @@ -27,12 +27,6 @@ void (*c6x_halt)(void);
>  extern asmlinkage void ret_from_fork(void);
>  extern asmlinkage void ret_from_kernel_thread(void);
>
> -/*
> - * power off function, if any
> - */
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void arch_cpu_idle(void)
>  {
>         unsigned long tmp;
> @@ -73,8 +67,7 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>         halt_loop();
>  }
>
> diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
> index b78498e..9ebd76b 100644
> --- a/arch/cris/kernel/process.c
> +++ b/arch/cris/kernel/process.c
> @@ -31,9 +31,6 @@
>
>  extern void default_idle(void);
>
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void arch_cpu_idle(void)
>  {
>         default_idle();
> @@ -60,6 +57,7 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> +       do_kernel_power_off();
>  }
>
>  /*
> diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
> index 5d40aeb77..502dabb 100644
> --- a/arch/frv/kernel/process.c
> +++ b/arch/frv/kernel/process.c
> @@ -42,9 +42,6 @@ asmlinkage void ret_from_kernel_thread(void);
>
>  #include <asm/pgalloc.h>
>
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  static void core_sleep_idle(void)
>  {
>  #ifdef LED_DEBUG_SLEEP
> @@ -107,6 +104,8 @@ void machine_power_off(void)
>         gdbstub_exit(0);
>  #endif
>
> +       do_kernel_power_off();
> +
>         for (;;);
>  }
>
> diff --git a/arch/hexagon/kernel/reset.c b/arch/hexagon/kernel/reset.c
> index 76483c1..6f607b6 100644
> --- a/arch/hexagon/kernel/reset.c
> +++ b/arch/hexagon/kernel/reset.c
> @@ -16,11 +16,13 @@
>   * 02110-1301, USA.
>   */
>
> +#include <linux/pm.h>
>  #include <linux/smp.h>
>  #include <asm/hexagon_vm.h>
>
>  void machine_power_off(void)
>  {
> +       do_kernel_power_off();
>         smp_send_stop();
>         __vmstop();
>  }
> @@ -32,6 +34,3 @@ void machine_halt(void)
>  void machine_restart(char *cmd)
>  {
>  }
> -
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
> index b515149..88121a2 100644
> --- a/arch/ia64/kernel/process.c
> +++ b/arch/ia64/kernel/process.c
> @@ -57,8 +57,6 @@ void (*ia64_mark_idle)(int);
>
>  unsigned long boot_option_idle_override = IDLE_NO_OVERRIDE;
>  EXPORT_SYMBOL(boot_option_idle_override);
> -void (*pm_power_off) (void);
> -EXPORT_SYMBOL(pm_power_off);
>
>  void
>  ia64_do_show_stack (struct unw_frame_info *info, void *arg)
> @@ -675,8 +673,7 @@ machine_halt (void)
>  void
>  machine_power_off (void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>         machine_halt();
>  }
>
> diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
> index e69221d..65a037e 100644
> --- a/arch/m32r/kernel/process.c
> +++ b/arch/m32r/kernel/process.c
> @@ -23,6 +23,7 @@
>  #include <linux/fs.h>
>  #include <linux/slab.h>
>  #include <linux/module.h>
> +#include <linux/pm.h>
>  #include <linux/ptrace.h>
>  #include <linux/unistd.h>
>  #include <linux/hardirq.h>
> @@ -44,9 +45,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
>         return tsk->thread.lr;
>  }
>
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void machine_restart(char *__unused)
>  {
>  #if defined(CONFIG_PLAT_MAPPI3)
> @@ -67,7 +65,9 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> -       /* M32R_FIXME */
> +       do_kernel_power_off();
> +       for (;;)
> +               ;
>  }
>
>  void show_regs(struct pt_regs * regs)
> diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
> index afe3d6e..bbc0a63 100644
> --- a/arch/m68k/kernel/process.c
> +++ b/arch/m68k/kernel/process.c
> @@ -78,14 +78,10 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>         for (;;);
>  }
>
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void show_regs(struct pt_regs * regs)
>  {
>         printk("\n");
> diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
> index 483dff9..8d95773 100644
> --- a/arch/metag/kernel/process.c
> +++ b/arch/metag/kernel/process.c
> @@ -67,9 +67,6 @@ void arch_cpu_idle_dead(void)
>  }
>  #endif
>
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void (*soc_restart)(char *cmd);
>  void (*soc_halt)(void);
>
> @@ -90,8 +87,7 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>         smp_send_stop();
>         hard_processor_halt(HALT_OK);
>  }
> diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
> index b2dd371..0ebca36 100644
> --- a/arch/microblaze/kernel/process.c
> +++ b/arch/microblaze/kernel/process.c
> @@ -44,9 +44,6 @@ void show_regs(struct pt_regs *regs)
>                                 regs->msr, regs->ear, regs->esr, regs->fsr);
>  }
>
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void flush_thread(void)
>  {
>  }
> diff --git a/arch/microblaze/kernel/reset.c b/arch/microblaze/kernel/reset.c
> index fbe58c6..2c6b32c 100644
> --- a/arch/microblaze/kernel/reset.c
> +++ b/arch/microblaze/kernel/reset.c
> @@ -103,6 +103,7 @@ void machine_halt(void)
>  void machine_power_off(void)
>  {
>         pr_notice("Machine power off...\n");
> +       do_kernel_power_off();
>         while (1)
>                 ;
>  }
> diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
> index 07fc524..09e74d2 100644
> --- a/arch/mips/kernel/reset.c
> +++ b/arch/mips/kernel/reset.c
> @@ -21,9 +21,6 @@
>   */
>  void (*_machine_restart)(char *command);
>  void (*_machine_halt)(void);
> -void (*pm_power_off)(void);
> -
> -EXPORT_SYMBOL(pm_power_off);
>
>  void machine_restart(char *command)
>  {
> @@ -39,6 +36,5 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>  }
> diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
> index 3707da5..c78b2eb 100644
> --- a/arch/mn10300/kernel/process.c
> +++ b/arch/mn10300/kernel/process.c
> @@ -20,6 +20,7 @@
>  #include <linux/user.h>
>  #include <linux/interrupt.h>
>  #include <linux/delay.h>
> +#include <linux/pm.h>
>  #include <linux/reboot.h>
>  #include <linux/percpu.h>
>  #include <linux/err.h>
> @@ -45,12 +46,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
>  }
>
>  /*
> - * power off function, if any
> - */
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
> -/*
>   * On SMP it's slightly faster (but much more power-consuming!)
>   * to poll the ->work.need_resched flag instead of waiting for the
>   * cross-CPU IPI to arrive. Use this option with caution.
> @@ -93,6 +88,7 @@ void machine_power_off(void)
>  #ifdef CONFIG_KERNEL_DEBUGGER
>         gdbstub_exit(0);
>  #endif
> +       do_kernel_power_off();
>  }
>
>  void show_regs(struct pt_regs *regs)
> diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
> index 386af25..494afd2 100644
> --- a/arch/openrisc/kernel/process.c
> +++ b/arch/openrisc/kernel/process.c
> @@ -25,6 +25,7 @@
>  #include <linux/kernel.h>
>  #include <linux/module.h>
>  #include <linux/mm.h>
> +#include <linux/pm.h>
>  #include <linux/stddef.h>
>  #include <linux/unistd.h>
>  #include <linux/ptrace.h>
> @@ -51,7 +52,7 @@
>   */
>  struct thread_info *current_thread_info_set[NR_CPUS] = { &init_thread_info, };
>
> -void machine_restart(void)
> +void machine_restart(char *cmd)
>  {
>         printk(KERN_INFO "*** MACHINE RESTART ***\n");
>         __asm__("l.nop 1");
> @@ -72,11 +73,12 @@ void machine_halt(void)
>  void machine_power_off(void)
>  {
>         printk(KERN_INFO "*** MACHINE POWER OFF ***\n");
> +
> +       do_kernel_power_off();
> +
>         __asm__("l.nop 1");
>  }
>
> -void (*pm_power_off) (void) = machine_power_off;
> -
>  /*
>   * When a process does an "exec", machine state like FPU and debug
>   * registers need to be reset.  This is a hook function for that.
> diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
> index 0bbbf0d..3f5d14a 100644
> --- a/arch/parisc/kernel/process.c
> +++ b/arch/parisc/kernel/process.c
> @@ -41,6 +41,7 @@
>  #include <linux/fs.h>
>  #include <linux/module.h>
>  #include <linux/personality.h>
> +#include <linux/pm.h>
>  #include <linux/ptrace.h>
>  #include <linux/sched.h>
>  #include <linux/slab.h>
> @@ -133,7 +134,9 @@ void machine_power_off(void)
>         pdc_soft_power_button(0);
>
>         pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
> -
> +
> +       do_kernel_power_off();
> +
>         /* It seems we have no way to power the system off via
>          * software. The user has to press the button himself. */
>
> @@ -141,9 +144,6 @@ void machine_power_off(void)
>                "Please power this system off now.");
>  }
>
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  /*
>   * Free current thread data structures etc..
>   */
> diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
> index 1362cd6..5b7a851 100644
> --- a/arch/powerpc/kernel/setup-common.c
> +++ b/arch/powerpc/kernel/setup-common.c
> @@ -141,6 +141,9 @@ void machine_power_off(void)
>         machine_shutdown();
>         if (ppc_md.power_off)
>                 ppc_md.power_off();
> +
> +       do_kernel_power_off();
> +
>  #ifdef CONFIG_SMP
>         smp_send_stop();
>  #endif
> @@ -151,9 +154,6 @@ void machine_power_off(void)
>  /* Used by the G5 thermal driver */
>  EXPORT_SYMBOL_GPL(machine_power_off);
>
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL_GPL(pm_power_off);
> -
>  void machine_halt(void)
>  {
>         machine_shutdown();
> diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
> index e80d9ff..267e025 100644
> --- a/arch/s390/kernel/setup.c
> +++ b/arch/s390/kernel/setup.c
> @@ -263,13 +263,9 @@ void machine_power_off(void)
>                  */
>                 console_unblank();
>         _machine_power_off();
> -}
>
> -/*
> - * Dummy power off function.
> - */
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL_GPL(pm_power_off);
> +       do_kernel_power_off();
> +}
>
>  static int __init early_parse_mem(char *p)
>  {
> diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
> index a1519ad3..b76ea67 100644
> --- a/arch/score/kernel/process.c
> +++ b/arch/score/kernel/process.c
> @@ -29,9 +29,6 @@
>  #include <linux/pm.h>
>  #include <linux/rcupdate.h>
>
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  /* If or when software machine-restart is implemented, add code here. */
>  void machine_restart(char *command) {}
>
> @@ -39,7 +36,10 @@ void machine_restart(char *command) {}
>  void machine_halt(void) {}
>
>  /* If or when software machine-power-off is implemented, add code here. */
> -void machine_power_off(void) {}
> +void machine_power_off(void)
> +{
> +       do_kernel_power_off();
> +}
>
>  void ret_from_fork(void);
>  void ret_from_kernel_thread(void);
> diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c
> index 04afe5b..065de12 100644
> --- a/arch/sh/kernel/reboot.c
> +++ b/arch/sh/kernel/reboot.c
> @@ -11,9 +11,6 @@
>  #include <asm/tlbflush.h>
>  #include <asm/traps.h>
>
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  #ifdef CONFIG_SUPERH32
>  static void watchdog_trigger_immediate(void)
>  {
> @@ -51,8 +48,7 @@ static void native_machine_shutdown(void)
>
>  static void native_machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>  }
>
>  static void native_machine_halt(void)
> diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
> index 50e7b62..cb8148a 100644
> --- a/arch/sparc/kernel/process_32.c
> +++ b/arch/sparc/kernel/process_32.c
> @@ -48,14 +48,6 @@
>   */
>  void (*sparc_idle)(void);
>
> -/*
> - * Power-off handler instantiation for pm.h compliance
> - * This is done via auxio, but could be used as a fallback
> - * handler when auxio is not present-- unused for now...
> - */
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  /*
>   * sysctl - toggle power-off restriction for serial console
>   * systems in machine_power_off()
> @@ -112,6 +104,8 @@ void machine_power_off(void)
>                 sbus_writeb(power_register, auxio_power_register);
>         }
>
> +       do_kernel_power_off();
> +
>         machine_halt();
>  }
>
> diff --git a/arch/sparc/kernel/reboot.c b/arch/sparc/kernel/reboot.c
> index eba7d91..3c0bb03 100644
> --- a/arch/sparc/kernel/reboot.c
> +++ b/arch/sparc/kernel/reboot.c
> @@ -16,17 +16,13 @@
>   */
>  int scons_pwroff = 1;
>
> -/* This isn't actually used, it exists merely to satisfy the
> - * reference in kernel/sys.c
> - */
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void machine_power_off(void)
>  {
>         if (strcmp(of_console_device->type, "serial") || scons_pwroff)
>                 prom_halt_power_off();
>
> +       do_kernel_power_off();
> +
>         prom_halt();
>  }
>
> diff --git a/arch/tile/kernel/reboot.c b/arch/tile/kernel/reboot.c
> index 6c5d2c0..8ff4a7f 100644
> --- a/arch/tile/kernel/reboot.c
> +++ b/arch/tile/kernel/reboot.c
> @@ -36,6 +36,9 @@ void machine_power_off(void)
>  {
>         arch_local_irq_disable_all();
>         smp_send_stop();
> +
> +       do_kernel_power_off();
> +
>         hv_power_off();
>  }
>
> @@ -45,7 +48,3 @@ void machine_restart(char *cmd)
>         smp_send_stop();
>         hv_restart((HV_VirtAddr) "vmlinux", (HV_VirtAddr) cmd);
>  }
> -
> -/* No interesting distinction to be made here. */
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
> index ced8903..a82ef28 100644
> --- a/arch/um/kernel/reboot.c
> +++ b/arch/um/kernel/reboot.c
> @@ -11,8 +11,6 @@
>  #include <os.h>
>  #include <skas.h>
>
> -void (*pm_power_off)(void);
> -
>  static void kill_off_processes(void)
>  {
>         if (proc_mm)
> diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
> index b008e99..9490dd5 100644
> --- a/arch/unicore32/kernel/process.c
> +++ b/arch/unicore32/kernel/process.c
> @@ -56,16 +56,9 @@ void machine_halt(void)
>         gpio_set_value(GPO_SOFT_OFF, 0);
>  }
>
> -/*
> - * Function pointers to optional machine specific functions
> - */
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>         machine_halt();
>  }
>
> diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
> index 17962e6..5c09e28 100644
> --- a/arch/x86/kernel/reboot.c
> +++ b/arch/x86/kernel/reboot.c
> @@ -30,12 +30,6 @@
>  #include <asm/x86_init.h>
>  #include <asm/efi.h>
>
> -/*
> - * Power off function, if any
> - */
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  static const struct desc_ptr no_idt = {};
>
>  /*
> @@ -647,11 +641,12 @@ static void native_machine_halt(void)
>
>  static void native_machine_power_off(void)
>  {
> -       if (pm_power_off) {
> +       if (have_kernel_power_off()) {
>                 if (!reboot_force)
>                         machine_shutdown();
> -               pm_power_off();
> +               do_kernel_power_off();
>         }
> +
>         /* A fallback in case there is no PM info available */
>         tboot_shutdown(TB_SHUTDOWN_HALT);
>  }
> diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
> index 1a3f044..c2c1d74 100644
> --- a/arch/x86/xen/enlighten.c
> +++ b/arch/x86/xen/enlighten.c
> @@ -1320,8 +1320,7 @@ static void xen_machine_halt(void)
>
>  static void xen_machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>         xen_reboot(SHUTDOWN_poweroff);
>  }
>
> diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
> index 1c85323..c487296 100644
> --- a/arch/xtensa/kernel/process.c
> +++ b/arch/xtensa/kernel/process.c
> @@ -49,10 +49,6 @@ extern void ret_from_kernel_thread(void);
>
>  struct task_struct *current_set[NR_CPUS] = {&init_task, };
>
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> -
> -
>  #if XTENSA_HAVE_COPROCESSORS
>
>  void coprocessor_release_all(struct thread_info *ti)
> diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
> index ef31b77..f10cf92 100644
> --- a/drivers/parisc/power.c
> +++ b/drivers/parisc/power.c
> @@ -95,8 +95,7 @@ static void process_shutdown(void)
>                 /* send kill signal */
>                 if (kill_cad_pid(SIGINT, 1)) {
>                         /* just in case killing init process failed */
> -                       if (pm_power_off)
> -                               pm_power_off();
> +                       kernel_power_off();
>                 }
>         }
>  }
> diff --git a/kernel/power/poweroff_handler.c b/kernel/power/poweroff_handler.c
> index aeb4736..37f0b88 100644
> --- a/kernel/power/poweroff_handler.c
> +++ b/kernel/power/poweroff_handler.c
> @@ -22,6 +22,12 @@
>  #include <linux/types.h>
>
>  /*
> + * If set, calling this function will power off the system immediately.
> + */
> +void (*pm_power_off)(void);
> +EXPORT_SYMBOL(pm_power_off);
> +
> +/*
>   *     Notifier list for kernel code which wants to be called
>   *     to power off the system.
>   */
> @@ -236,6 +242,8 @@ EXPORT_SYMBOL(devm_register_power_off_handler);
>  void do_kernel_power_off(void)
>  {
>         spin_lock(&power_off_handler_lock);
> +       if (pm_power_off)
> +               pm_power_off();
>         raw_notifier_call_chain(&power_off_handler_list, 0, NULL);
>         spin_unlock(&power_off_handler_lock);
>  }
> diff --git a/kernel/reboot.c b/kernel/reboot.c
> index 5925f5a..0930851 100644
> --- a/kernel/reboot.c
> +++ b/kernel/reboot.c
> @@ -306,9 +306,9 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd,
>                 return ret;
>
>         /* Instead of trying to make the power_off code look like
> -        * halt when pm_power_off is not set do it the easy way.
> +        * halt when no poweroff handler exists do it the easy way.
>          */
> -       if ((cmd == LINUX_REBOOT_CMD_POWER_OFF) && !pm_power_off)
> +       if (cmd == LINUX_REBOOT_CMD_POWER_OFF && !have_kernel_power_off())
>                 cmd = LINUX_REBOOT_CMD_HALT;
>
>         mutex_lock(&reboot_mutex);
> --
> 1.9.1
>
> --
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From - Thu Nov 08 21:10:54 2018
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Subject: Re: [PATCH v2 08/47] kernel: Move pm_power_off to common code
Date: Fri, 24 Oct 2014 08:53:40 -0700
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To: James Hogan <james.hogan@imgtec.com>
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On Fri, Oct 24, 2014 at 10:47:03AM +0100, James Hogan wrote:
> Hi Guenter,
> 
> On 21/10/14 05:12, Guenter Roeck wrote:
> > pm_power_off is defined for all architectures. Move it to common code.
> > 
> > Have all architectures call do_kernel_power_off instead of pm_power_off.
> > Some architectures point pm_power_off to machine_power_off. For those,
> > call do_kernel_power_off from machine_power_off instead.
> > 
> > Acked-by: David Vrabel <david.vrabel@citrix.com>
> > Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
> > Acked-by: Hirokazu Takata <takata@linux-m32r.org>
> > Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
> > Acked-by: Max Filippov <jcmvbkbc@gmail.com>
> > Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
> > Acked-by: Richard Weinberger <richard@nod.at>
> > Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
> 
> For metag:
> Acked-by: James Hogan <james.hogan@imgtec.com>
> 
Thanks!

Guenter

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From: Lennox Wu <lennox.wu@gmail.com>
Newsgroups: gmane.linux.uml.user,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.openrisc,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.uml.devel,gmane.linux.power-management.general,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [uml-user] [PATCH v2 08/47] kernel: Move pm_power_off to common
	code
Date: Fri, 24 Oct 2014 18:02:09 +0800
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Content-Type: text/plain; charset=UTF-8

Acked-by: Lennox Wu <lennox.wu@gmail.com>

2014-10-21 12:12 GMT+08:00 Guenter Roeck <linux@roeck-us.net>:

> pm_power_off is defined for all architectures. Move it to common code.
>
> Have all architectures call do_kernel_power_off instead of pm_power_off.
> Some architectures point pm_power_off to machine_power_off. For those,
> call do_kernel_power_off from machine_power_off instead.
>
> Acked-by: David Vrabel <david.vrabel@citrix.com>
> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Acked-by: Hirokazu Takata <takata@linux-m32r.org>
> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
> Acked-by: Max Filippov <jcmvbkbc@gmail.com>
> Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
> Acked-by: Richard Weinberger <richard@nod.at>
> Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
> v2:
> - do_kernel_poweroff -> do_kernel_power_off
> - have_kernel_poweroff -> have_kernel_power_off
>
>  arch/alpha/kernel/process.c        |  9 +++------
>  arch/arc/kernel/reset.c            |  5 +----
>  arch/arm/kernel/process.c          |  5 +----
>  arch/arm64/kernel/process.c        |  5 +----
>  arch/avr32/kernel/process.c        |  6 +-----
>  arch/blackfin/kernel/process.c     |  3 ---
>  arch/blackfin/kernel/reboot.c      |  2 ++
>  arch/c6x/kernel/process.c          |  9 +--------
>  arch/cris/kernel/process.c         |  4 +---
>  arch/frv/kernel/process.c          |  5 ++---
>  arch/hexagon/kernel/reset.c        |  5 ++---
>  arch/ia64/kernel/process.c         |  5 +----
>  arch/m32r/kernel/process.c         |  8 ++++----
>  arch/m68k/kernel/process.c         |  6 +-----
>  arch/metag/kernel/process.c        |  6 +-----
>  arch/microblaze/kernel/process.c   |  3 ---
>  arch/microblaze/kernel/reset.c     |  1 +
>  arch/mips/kernel/reset.c           |  6 +-----
>  arch/mn10300/kernel/process.c      |  8 ++------
>  arch/openrisc/kernel/process.c     |  8 +++++---
>  arch/parisc/kernel/process.c       |  8 ++++----
>  arch/powerpc/kernel/setup-common.c |  6 +++---
>  arch/s390/kernel/setup.c           |  8 ++------
>  arch/score/kernel/process.c        |  8 ++++----
>  arch/sh/kernel/reboot.c            |  6 +-----
>  arch/sparc/kernel/process_32.c     | 10 ++--------
>  arch/sparc/kernel/reboot.c         |  8 ++------
>  arch/tile/kernel/reboot.c          |  7 +++----
>  arch/um/kernel/reboot.c            |  2 --
>  arch/unicore32/kernel/process.c    |  9 +--------
>  arch/x86/kernel/reboot.c           | 11 +++--------
>  arch/x86/xen/enlighten.c           |  3 +--
>  arch/xtensa/kernel/process.c       |  4 ----
>  drivers/parisc/power.c             |  3 +--
>  kernel/power/poweroff_handler.c    |  8 ++++++++
>  kernel/reboot.c                    |  4 ++--
>  36 files changed, 68 insertions(+), 146 deletions(-)
>
> diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
> index 1941a07..81c43f8 100644
> --- a/arch/alpha/kernel/process.c
> +++ b/arch/alpha/kernel/process.c
> @@ -24,6 +24,7 @@
>  #include <linux/vt.h>
>  #include <linux/mman.h>
>  #include <linux/elfcore.h>
> +#include <linux/pm.h>
>  #include <linux/reboot.h>
>  #include <linux/tty.h>
>  #include <linux/console.h>
> @@ -40,12 +41,6 @@
>  #include "proto.h"
>  #include "pci_impl.h"
>
> -/*
> - * Power off function, if any
> - */
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  #ifdef CONFIG_ALPHA_WTINT
>  /*
>   * Sleep the CPU.
> @@ -184,6 +179,8 @@ machine_halt(void)
>  void
>  machine_power_off(void)
>  {
> +       do_kernel_power_off();
> +
>         common_shutdown(LINUX_REBOOT_CMD_POWER_OFF, NULL);
>  }
>
> diff --git a/arch/arc/kernel/reset.c b/arch/arc/kernel/reset.c
> index 2768fa1..0758d9d 100644
> --- a/arch/arc/kernel/reset.c
> +++ b/arch/arc/kernel/reset.c
> @@ -26,9 +26,6 @@ void machine_restart(char *__unused)
>
>  void machine_power_off(void)
>  {
> -       /* FIXME ::  power off ??? */
> +       do_kernel_power_off();
>         machine_halt();
>  }
> -
> -void (*pm_power_off) (void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
> index fe972a2..aa3f656 100644
> --- a/arch/arm/kernel/process.c
> +++ b/arch/arm/kernel/process.c
> @@ -117,8 +117,6 @@ void soft_restart(unsigned long addr)
>  /*
>   * Function pointers to optional machine specific functions
>   */
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
>
>  void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
>
> @@ -205,8 +203,7 @@ void machine_power_off(void)
>         local_irq_disable();
>         smp_send_stop();
>
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>  }
>
>  /*
> diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
> index c3065db..46a483a 100644
> --- a/arch/arm64/kernel/process.c
> +++ b/arch/arm64/kernel/process.c
> @@ -68,8 +68,6 @@ void soft_restart(unsigned long addr)
>  /*
>   * Function pointers to optional machine specific functions
>   */
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL_GPL(pm_power_off);
>
>  void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
>
> @@ -129,8 +127,7 @@ void machine_power_off(void)
>  {
>         local_irq_disable();
>         smp_send_stop();
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>  }
>
>  /*
> diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
> index 42a53e74..529c1f6 100644
> --- a/arch/avr32/kernel/process.c
> +++ b/arch/avr32/kernel/process.c
> @@ -23,9 +23,6 @@
>
>  #include <mach/pm.h>
>
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  /*
>   * This file handles the architecture-dependent parts of process
> handling..
>   */
> @@ -48,8 +45,7 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>  }
>
>  void machine_restart(char *cmd)
> diff --git a/arch/blackfin/kernel/process.c
> b/arch/blackfin/kernel/process.c
> index 4aa5545..812dd83 100644
> --- a/arch/blackfin/kernel/process.c
> +++ b/arch/blackfin/kernel/process.c
> @@ -39,9 +39,6 @@ int nr_l1stack_tasks;
>  void *l1_stack_base;
>  unsigned long l1_stack_len;
>
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  /*
>   * The idle loop on BFIN
>   */
> diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
> index c4f50a3..387d610 100644
> --- a/arch/blackfin/kernel/reboot.c
> +++ b/arch/blackfin/kernel/reboot.c
> @@ -7,6 +7,7 @@
>   */
>
>  #include <linux/interrupt.h>
> +#include <linux/pm.h>
>  #include <asm/bfin-global.h>
>  #include <asm/reboot.h>
>  #include <asm/bfrom.h>
> @@ -106,6 +107,7 @@ void machine_halt(void)
>  __attribute__((weak))
>  void native_machine_power_off(void)
>  {
> +       do_kernel_power_off();
>         idle_with_irq_disabled();
>  }
>
> diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
> index 57d2ea8..edf7e5a 100644
> --- a/arch/c6x/kernel/process.c
> +++ b/arch/c6x/kernel/process.c
> @@ -27,12 +27,6 @@ void (*c6x_halt)(void);
>  extern asmlinkage void ret_from_fork(void);
>  extern asmlinkage void ret_from_kernel_thread(void);
>
> -/*
> - * power off function, if any
> - */
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void arch_cpu_idle(void)
>  {
>         unsigned long tmp;
> @@ -73,8 +67,7 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>         halt_loop();
>  }
>
> diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
> index b78498e..9ebd76b 100644
> --- a/arch/cris/kernel/process.c
> +++ b/arch/cris/kernel/process.c
> @@ -31,9 +31,6 @@
>
>  extern void default_idle(void);
>
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void arch_cpu_idle(void)
>  {
>         default_idle();
> @@ -60,6 +57,7 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> +       do_kernel_power_off();
>  }
>
>  /*
> diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
> index 5d40aeb77..502dabb 100644
> --- a/arch/frv/kernel/process.c
> +++ b/arch/frv/kernel/process.c
> @@ -42,9 +42,6 @@ asmlinkage void ret_from_kernel_thread(void);
>
>  #include <asm/pgalloc.h>
>
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  static void core_sleep_idle(void)
>  {
>  #ifdef LED_DEBUG_SLEEP
> @@ -107,6 +104,8 @@ void machine_power_off(void)
>         gdbstub_exit(0);
>  #endif
>
> +       do_kernel_power_off();
> +
>         for (;;);
>  }
>
> diff --git a/arch/hexagon/kernel/reset.c b/arch/hexagon/kernel/reset.c
> index 76483c1..6f607b6 100644
> --- a/arch/hexagon/kernel/reset.c
> +++ b/arch/hexagon/kernel/reset.c
> @@ -16,11 +16,13 @@
>   * 02110-1301, USA.
>   */
>
> +#include <linux/pm.h>
>  #include <linux/smp.h>
>  #include <asm/hexagon_vm.h>
>
>  void machine_power_off(void)
>  {
> +       do_kernel_power_off();
>         smp_send_stop();
>         __vmstop();
>  }
> @@ -32,6 +34,3 @@ void machine_halt(void)
>  void machine_restart(char *cmd)
>  {
>  }
> -
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
> index b515149..88121a2 100644
> --- a/arch/ia64/kernel/process.c
> +++ b/arch/ia64/kernel/process.c
> @@ -57,8 +57,6 @@ void (*ia64_mark_idle)(int);
>
>  unsigned long boot_option_idle_override = IDLE_NO_OVERRIDE;
>  EXPORT_SYMBOL(boot_option_idle_override);
> -void (*pm_power_off) (void);
> -EXPORT_SYMBOL(pm_power_off);
>
>  void
>  ia64_do_show_stack (struct unw_frame_info *info, void *arg)
> @@ -675,8 +673,7 @@ machine_halt (void)
>  void
>  machine_power_off (void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>         machine_halt();
>  }
>
> diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
> index e69221d..65a037e 100644
> --- a/arch/m32r/kernel/process.c
> +++ b/arch/m32r/kernel/process.c
> @@ -23,6 +23,7 @@
>  #include <linux/fs.h>
>  #include <linux/slab.h>
>  #include <linux/module.h>
> +#include <linux/pm.h>
>  #include <linux/ptrace.h>
>  #include <linux/unistd.h>
>  #include <linux/hardirq.h>
> @@ -44,9 +45,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
>         return tsk->thread.lr;
>  }
>
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void machine_restart(char *__unused)
>  {
>  #if defined(CONFIG_PLAT_MAPPI3)
> @@ -67,7 +65,9 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> -       /* M32R_FIXME */
> +       do_kernel_power_off();
> +       for (;;)
> +               ;
>  }
>
>  void show_regs(struct pt_regs * regs)
> diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
> index afe3d6e..bbc0a63 100644
> --- a/arch/m68k/kernel/process.c
> +++ b/arch/m68k/kernel/process.c
> @@ -78,14 +78,10 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>         for (;;);
>  }
>
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void show_regs(struct pt_regs * regs)
>  {
>         printk("\n");
> diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
> index 483dff9..8d95773 100644
> --- a/arch/metag/kernel/process.c
> +++ b/arch/metag/kernel/process.c
> @@ -67,9 +67,6 @@ void arch_cpu_idle_dead(void)
>  }
>  #endif
>
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void (*soc_restart)(char *cmd);
>  void (*soc_halt)(void);
>
> @@ -90,8 +87,7 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>         smp_send_stop();
>         hard_processor_halt(HALT_OK);
>  }
> diff --git a/arch/microblaze/kernel/process.c
> b/arch/microblaze/kernel/process.c
> index b2dd371..0ebca36 100644
> --- a/arch/microblaze/kernel/process.c
> +++ b/arch/microblaze/kernel/process.c
> @@ -44,9 +44,6 @@ void show_regs(struct pt_regs *regs)
>                                 regs->msr, regs->ear, regs->esr,
> regs->fsr);
>  }
>
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void flush_thread(void)
>  {
>  }
> diff --git a/arch/microblaze/kernel/reset.c
> b/arch/microblaze/kernel/reset.c
> index fbe58c6..2c6b32c 100644
> --- a/arch/microblaze/kernel/reset.c
> +++ b/arch/microblaze/kernel/reset.c
> @@ -103,6 +103,7 @@ void machine_halt(void)
>  void machine_power_off(void)
>  {
>         pr_notice("Machine power off...\n");
> +       do_kernel_power_off();
>         while (1)
>                 ;
>  }
> diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
> index 07fc524..09e74d2 100644
> --- a/arch/mips/kernel/reset.c
> +++ b/arch/mips/kernel/reset.c
> @@ -21,9 +21,6 @@
>   */
>  void (*_machine_restart)(char *command);
>  void (*_machine_halt)(void);
> -void (*pm_power_off)(void);
> -
> -EXPORT_SYMBOL(pm_power_off);
>
>  void machine_restart(char *command)
>  {
> @@ -39,6 +36,5 @@ void machine_halt(void)
>
>  void machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>  }
> diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
> index 3707da5..c78b2eb 100644
> --- a/arch/mn10300/kernel/process.c
> +++ b/arch/mn10300/kernel/process.c
> @@ -20,6 +20,7 @@
>  #include <linux/user.h>
>  #include <linux/interrupt.h>
>  #include <linux/delay.h>
> +#include <linux/pm.h>
>  #include <linux/reboot.h>
>  #include <linux/percpu.h>
>  #include <linux/err.h>
> @@ -45,12 +46,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
>  }
>
>  /*
> - * power off function, if any
> - */
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
> -/*
>   * On SMP it's slightly faster (but much more power-consuming!)
>   * to poll the ->work.need_resched flag instead of waiting for the
>   * cross-CPU IPI to arrive. Use this option with caution.
> @@ -93,6 +88,7 @@ void machine_power_off(void)
>  #ifdef CONFIG_KERNEL_DEBUGGER
>         gdbstub_exit(0);
>  #endif
> +       do_kernel_power_off();
>  }
>
>  void show_regs(struct pt_regs *regs)
> diff --git a/arch/openrisc/kernel/process.c
> b/arch/openrisc/kernel/process.c
> index 386af25..494afd2 100644
> --- a/arch/openrisc/kernel/process.c
> +++ b/arch/openrisc/kernel/process.c
> @@ -25,6 +25,7 @@
>  #include <linux/kernel.h>
>  #include <linux/module.h>
>  #include <linux/mm.h>
> +#include <linux/pm.h>
>  #include <linux/stddef.h>
>  #include <linux/unistd.h>
>  #include <linux/ptrace.h>
> @@ -51,7 +52,7 @@
>   */
>  struct thread_info *current_thread_info_set[NR_CPUS] = {
> &init_thread_info, };
>
> -void machine_restart(void)
> +void machine_restart(char *cmd)
>  {
>         printk(KERN_INFO "*** MACHINE RESTART ***\n");
>         __asm__("l.nop 1");
> @@ -72,11 +73,12 @@ void machine_halt(void)
>  void machine_power_off(void)
>  {
>         printk(KERN_INFO "*** MACHINE POWER OFF ***\n");
> +
> +       do_kernel_power_off();
> +
>         __asm__("l.nop 1");
>  }
>
> -void (*pm_power_off) (void) = machine_power_off;
> -
>  /*
>   * When a process does an "exec", machine state like FPU and debug
>   * registers need to be reset.  This is a hook function for that.
> diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
> index 0bbbf0d..3f5d14a 100644
> --- a/arch/parisc/kernel/process.c
> +++ b/arch/parisc/kernel/process.c
> @@ -41,6 +41,7 @@
>  #include <linux/fs.h>
>  #include <linux/module.h>
>  #include <linux/personality.h>
> +#include <linux/pm.h>
>  #include <linux/ptrace.h>
>  #include <linux/sched.h>
>  #include <linux/slab.h>
> @@ -133,7 +134,9 @@ void machine_power_off(void)
>         pdc_soft_power_button(0);
>
>         pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
> -
> +
> +       do_kernel_power_off();
> +
>         /* It seems we have no way to power the system off via
>          * software. The user has to press the button himself. */
>
> @@ -141,9 +144,6 @@ void machine_power_off(void)
>                "Please power this system off now.");
>  }
>
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  /*
>   * Free current thread data structures etc..
>   */
> diff --git a/arch/powerpc/kernel/setup-common.c
> b/arch/powerpc/kernel/setup-common.c
> index 1362cd6..5b7a851 100644
> --- a/arch/powerpc/kernel/setup-common.c
> +++ b/arch/powerpc/kernel/setup-common.c
> @@ -141,6 +141,9 @@ void machine_power_off(void)
>         machine_shutdown();
>         if (ppc_md.power_off)
>                 ppc_md.power_off();
> +
> +       do_kernel_power_off();
> +
>  #ifdef CONFIG_SMP
>         smp_send_stop();
>  #endif
> @@ -151,9 +154,6 @@ void machine_power_off(void)
>  /* Used by the G5 thermal driver */
>  EXPORT_SYMBOL_GPL(machine_power_off);
>
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL_GPL(pm_power_off);
> -
>  void machine_halt(void)
>  {
>         machine_shutdown();
> diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
> index e80d9ff..267e025 100644
> --- a/arch/s390/kernel/setup.c
> +++ b/arch/s390/kernel/setup.c
> @@ -263,13 +263,9 @@ void machine_power_off(void)
>                  */
>                 console_unblank();
>         _machine_power_off();
> -}
>
> -/*
> - * Dummy power off function.
> - */
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL_GPL(pm_power_off);
> +       do_kernel_power_off();
> +}
>
>  static int __init early_parse_mem(char *p)
>  {
> diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
> index a1519ad3..b76ea67 100644
> --- a/arch/score/kernel/process.c
> +++ b/arch/score/kernel/process.c
> @@ -29,9 +29,6 @@
>  #include <linux/pm.h>
>  #include <linux/rcupdate.h>
>
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  /* If or when software machine-restart is implemented, add code here. */
>  void machine_restart(char *command) {}
>
> @@ -39,7 +36,10 @@ void machine_restart(char *command) {}
>  void machine_halt(void) {}
>
>  /* If or when software machine-power-off is implemented, add code here. */
> -void machine_power_off(void) {}
> +void machine_power_off(void)
> +{
> +       do_kernel_power_off();
> +}
>
>  void ret_from_fork(void);
>  void ret_from_kernel_thread(void);
> diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c
> index 04afe5b..065de12 100644
> --- a/arch/sh/kernel/reboot.c
> +++ b/arch/sh/kernel/reboot.c
> @@ -11,9 +11,6 @@
>  #include <asm/tlbflush.h>
>  #include <asm/traps.h>
>
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  #ifdef CONFIG_SUPERH32
>  static void watchdog_trigger_immediate(void)
>  {
> @@ -51,8 +48,7 @@ static void native_machine_shutdown(void)
>
>  static void native_machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>  }
>
>  static void native_machine_halt(void)
> diff --git a/arch/sparc/kernel/process_32.c
> b/arch/sparc/kernel/process_32.c
> index 50e7b62..cb8148a 100644
> --- a/arch/sparc/kernel/process_32.c
> +++ b/arch/sparc/kernel/process_32.c
> @@ -48,14 +48,6 @@
>   */
>  void (*sparc_idle)(void);
>
> -/*
> - * Power-off handler instantiation for pm.h compliance
> - * This is done via auxio, but could be used as a fallback
> - * handler when auxio is not present-- unused for now...
> - */
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  /*
>   * sysctl - toggle power-off restriction for serial console
>   * systems in machine_power_off()
> @@ -112,6 +104,8 @@ void machine_power_off(void)
>                 sbus_writeb(power_register, auxio_power_register);
>         }
>
> +       do_kernel_power_off();
> +
>         machine_halt();
>  }
>
> diff --git a/arch/sparc/kernel/reboot.c b/arch/sparc/kernel/reboot.c
> index eba7d91..3c0bb03 100644
> --- a/arch/sparc/kernel/reboot.c
> +++ b/arch/sparc/kernel/reboot.c
> @@ -16,17 +16,13 @@
>   */
>  int scons_pwroff = 1;
>
> -/* This isn't actually used, it exists merely to satisfy the
> - * reference in kernel/sys.c
> - */
> -void (*pm_power_off)(void) = machine_power_off;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void machine_power_off(void)
>  {
>         if (strcmp(of_console_device->type, "serial") || scons_pwroff)
>                 prom_halt_power_off();
>
> +       do_kernel_power_off();
> +
>         prom_halt();
>  }
>
> diff --git a/arch/tile/kernel/reboot.c b/arch/tile/kernel/reboot.c
> index 6c5d2c0..8ff4a7f 100644
> --- a/arch/tile/kernel/reboot.c
> +++ b/arch/tile/kernel/reboot.c
> @@ -36,6 +36,9 @@ void machine_power_off(void)
>  {
>         arch_local_irq_disable_all();
>         smp_send_stop();
> +
> +       do_kernel_power_off();
> +
>         hv_power_off();
>  }
>
> @@ -45,7 +48,3 @@ void machine_restart(char *cmd)
>         smp_send_stop();
>         hv_restart((HV_VirtAddr) "vmlinux", (HV_VirtAddr) cmd);
>  }
> -
> -/* No interesting distinction to be made here. */
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
> index ced8903..a82ef28 100644
> --- a/arch/um/kernel/reboot.c
> +++ b/arch/um/kernel/reboot.c
> @@ -11,8 +11,6 @@
>  #include <os.h>
>  #include <skas.h>
>
> -void (*pm_power_off)(void);
> -
>  static void kill_off_processes(void)
>  {
>         if (proc_mm)
> diff --git a/arch/unicore32/kernel/process.c
> b/arch/unicore32/kernel/process.c
> index b008e99..9490dd5 100644
> --- a/arch/unicore32/kernel/process.c
> +++ b/arch/unicore32/kernel/process.c
> @@ -56,16 +56,9 @@ void machine_halt(void)
>         gpio_set_value(GPO_SOFT_OFF, 0);
>  }
>
> -/*
> - * Function pointers to optional machine specific functions
> - */
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> -
>  void machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>         machine_halt();
>  }
>
> diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
> index 17962e6..5c09e28 100644
> --- a/arch/x86/kernel/reboot.c
> +++ b/arch/x86/kernel/reboot.c
> @@ -30,12 +30,6 @@
>  #include <asm/x86_init.h>
>  #include <asm/efi.h>
>
> -/*
> - * Power off function, if any
> - */
> -void (*pm_power_off)(void);
> -EXPORT_SYMBOL(pm_power_off);
> -
>  static const struct desc_ptr no_idt = {};
>
>  /*
> @@ -647,11 +641,12 @@ static void native_machine_halt(void)
>
>  static void native_machine_power_off(void)
>  {
> -       if (pm_power_off) {
> +       if (have_kernel_power_off()) {
>                 if (!reboot_force)
>                         machine_shutdown();
> -               pm_power_off();
> +               do_kernel_power_off();
>         }
> +
>         /* A fallback in case there is no PM info available */
>         tboot_shutdown(TB_SHUTDOWN_HALT);
>  }
> diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
> index 1a3f044..c2c1d74 100644
> --- a/arch/x86/xen/enlighten.c
> +++ b/arch/x86/xen/enlighten.c
> @@ -1320,8 +1320,7 @@ static void xen_machine_halt(void)
>
>  static void xen_machine_power_off(void)
>  {
> -       if (pm_power_off)
> -               pm_power_off();
> +       do_kernel_power_off();
>         xen_reboot(SHUTDOWN_poweroff);
>  }
>
> diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
> index 1c85323..c487296 100644
> --- a/arch/xtensa/kernel/process.c
> +++ b/arch/xtensa/kernel/process.c
> @@ -49,10 +49,6 @@ extern void ret_from_kernel_thread(void);
>
>  struct task_struct *current_set[NR_CPUS] = {&init_task, };
>
> -void (*pm_power_off)(void) = NULL;
> -EXPORT_SYMBOL(pm_power_off);
> -
> -
>  #if XTENSA_HAVE_COPROCESSORS
>
>  void coprocessor_release_all(struct thread_info *ti)
> diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
> index ef31b77..f10cf92 100644
> --- a/drivers/parisc/power.c
> +++ b/drivers/parisc/power.c
> @@ -95,8 +95,7 @@ static void process_shutdown(void)
>                 /* send kill signal */
>                 if (kill_cad_pid(SIGINT, 1)) {
>                         /* just in case killing init process failed */
> -                       if (pm_power_off)
> -                               pm_power_off();
> +                       kernel_power_off();
>                 }
>         }
>  }
> diff --git a/kernel/power/poweroff_handler.c
> b/kernel/power/poweroff_handler.c
> index aeb4736..37f0b88 100644
> --- a/kernel/power/poweroff_handler.c
> +++ b/kernel/power/poweroff_handler.c
> @@ -22,6 +22,12 @@
>  #include <linux/types.h>
>
>  /*
> + * If set, calling this function will power off the system immediately.
> + */
> +void (*pm_power_off)(void);
> +EXPORT_SYMBOL(pm_power_off);
> +
> +/*
>   *     Notifier list for kernel code which wants to be called
>   *     to power off the system.
>   */
> @@ -236,6 +242,8 @@ EXPORT_SYMBOL(devm_register_power_off_handler);
>  void do_kernel_power_off(void)
>  {
>         spin_lock(&power_off_handler_lock);
> +       if (pm_power_off)
> +               pm_power_off();
>         raw_notifier_call_chain(&power_off_handler_list, 0, NULL);
>         spin_unlock(&power_off_handler_lock);
>  }
> diff --git a/kernel/reboot.c b/kernel/reboot.c
> index 5925f5a..0930851 100644
> --- a/kernel/reboot.c
> +++ b/kernel/reboot.c
> @@ -306,9 +306,9 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2,
> unsigned int, cmd,
>                 return ret;
>
>         /* Instead of trying to make the power_off code look like
> -        * halt when pm_power_off is not set do it the easy way.
> +        * halt when no poweroff handler exists do it the easy way.
>          */
> -       if ((cmd == LINUX_REBOOT_CMD_POWER_OFF) && !pm_power_off)
> +       if (cmd == LINUX_REBOOT_CMD_POWER_OFF && !have_kernel_power_off())
>                 cmd = LINUX_REBOOT_CMD_HALT;
>
>         mutex_lock(&reboot_mutex);
> --
> 1.9.1
>
> --
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> the body of a message to majordomo@vger.kernel.org
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> Please read the FAQ at  http://www.tux.org/lkml/
>

--001a113a86702f33570506284668
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Acked-by: Lennox Wu &lt;<a href=3D"mailto:lennox.wu@gmail.=
com">lennox.wu@gmail.com</a>&gt;<br></div><div class=3D"gmail_extra"><br><d=
iv class=3D"gmail_quote">2014-10-21 12:12 GMT+08:00 Guenter Roeck <span dir=
=3D"ltr">&lt;<a href=3D"mailto:linux@roeck-us.net" target=3D"_blank">linux@=
roeck-us.net</a>&gt;</span>:<br><blockquote class=3D"gmail_quote" style=3D"=
margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">pm_power_off=
 is defined for all architectures. Move it to common code.<br>
<br>
Have all architectures call do_kernel_power_off instead of pm_power_off.<br=
>
Some architectures point pm_power_off to machine_power_off. For those,<br>
call do_kernel_power_off from machine_power_off instead.<br>
<br>
Acked-by: David Vrabel &lt;<a href=3D"mailto:david.vrabel@citrix.com">david=
.vrabel@citrix.com</a>&gt;<br>
Acked-by: Geert Uytterhoeven &lt;<a href=3D"mailto:geert@linux-m68k.org">ge=
ert@linux-m68k.org</a>&gt;<br>
Acked-by: Hirokazu Takata &lt;<a href=3D"mailto:takata@linux-m32r.org">taka=
ta@linux-m32r.org</a>&gt;<br>
Acked-by: Jesper Nilsson &lt;<a href=3D"mailto:jesper.nilsson@axis.com">jes=
per.nilsson@axis.com</a>&gt;<br>
Acked-by: Max Filippov &lt;<a href=3D"mailto:jcmvbkbc@gmail.com">jcmvbkbc@g=
mail.com</a>&gt;<br>
Acked-by: Rafael J. Wysocki &lt;<a href=3D"mailto:rjw@rjwysocki.net">rjw@rj=
wysocki.net</a>&gt;<br>
Acked-by: Richard Weinberger &lt;<a href=3D"mailto:richard@nod.at">richard@=
nod.at</a>&gt;<br>
Acked-by: Xuetao Guan &lt;<a href=3D"mailto:gxt@mprc.pku.edu.cn">gxt@mprc.p=
ku.edu.cn</a>&gt;<br>
Signed-off-by: Guenter Roeck &lt;<a href=3D"mailto:linux@roeck-us.net">linu=
x@roeck-us.net</a>&gt;<br>
---<br>
v2:<br>
- do_kernel_poweroff -&gt; do_kernel_power_off<br>
- have_kernel_poweroff -&gt; have_kernel_power_off<br>
<br>
=C2=A0arch/alpha/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 9 +++-=
-----<br>
=C2=A0arch/arc/kernel/reset.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=
=A0 5 +----<br>
=C2=A0arch/arm/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 5=
 +----<br>
=C2=A0arch/arm64/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 5 +---=
-<br>
=C2=A0arch/avr32/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 6 +---=
--<br>
=C2=A0arch/blackfin/kernel/process.c=C2=A0 =C2=A0 =C2=A0|=C2=A0 3 ---<br>
=C2=A0arch/blackfin/kernel/reboot.c=C2=A0 =C2=A0 =C2=A0 |=C2=A0 2 ++<br>
=C2=A0arch/c6x/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 9=
 +--------<br>
=C2=A0arch/cris/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 4=
 +---<br>
=C2=A0arch/frv/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 5=
 ++---<br>
=C2=A0arch/hexagon/kernel/reset.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 5 ++--=
-<br>
=C2=A0arch/ia64/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 5=
 +----<br>
=C2=A0arch/m32r/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 8=
 ++++----<br>
=C2=A0arch/m68k/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 6=
 +-----<br>
=C2=A0arch/metag/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 6 +---=
--<br>
=C2=A0arch/microblaze/kernel/process.c=C2=A0 =C2=A0|=C2=A0 3 ---<br>
=C2=A0arch/microblaze/kernel/reset.c=C2=A0 =C2=A0 =C2=A0|=C2=A0 1 +<br>
=C2=A0arch/mips/kernel/reset.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=
=A0 6 +-----<br>
=C2=A0arch/mn10300/kernel/process.c=C2=A0 =C2=A0 =C2=A0 |=C2=A0 8 ++------<=
br>
=C2=A0arch/openrisc/kernel/process.c=C2=A0 =C2=A0 =C2=A0|=C2=A0 8 +++++---<=
br>
=C2=A0arch/parisc/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 8 ++++=
----<br>
=C2=A0arch/powerpc/kernel/setup-common.c |=C2=A0 6 +++---<br>
=C2=A0arch/s390/kernel/setup.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=
=A0 8 ++------<br>
=C2=A0arch/score/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 8 ++++=
----<br>
=C2=A0arch/sh/kernel/reboot.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=
=A0 6 +-----<br>
=C2=A0arch/sparc/kernel/process_32.c=C2=A0 =C2=A0 =C2=A0| 10 ++--------<br>
=C2=A0arch/sparc/kernel/reboot.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 8=
 ++------<br>
=C2=A0arch/tile/kernel/reboot.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 7=
 +++----<br>
=C2=A0arch/um/kernel/reboot.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=
=A0 2 --<br>
=C2=A0arch/unicore32/kernel/process.c=C2=A0 =C2=A0 |=C2=A0 9 +--------<br>
=C2=A0arch/x86/kernel/reboot.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0| 11=
 +++--------<br>
=C2=A0arch/x86/xen/enlighten.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=
=A0 3 +--<br>
=C2=A0arch/xtensa/kernel/process.c=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 4 ----=
<br>
=C2=A0drivers/parisc/power.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0|=C2=A0 3 +--<br>
=C2=A0kernel/power/poweroff_handler.c=C2=A0 =C2=A0 |=C2=A0 8 ++++++++<br>
=C2=A0kernel/reboot.c=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 |=C2=A0 4 ++--<br>
=C2=A036 files changed, 68 insertions(+), 146 deletions(-)<br>
<br>
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c<br>
index 1941a07..81c43f8 100644<br>
--- a/arch/alpha/kernel/process.c<br>
+++ b/arch/alpha/kernel/process.c<br>
@@ -24,6 +24,7 @@<br>
=C2=A0#include &lt;linux/vt.h&gt;<br>
=C2=A0#include &lt;linux/mman.h&gt;<br>
=C2=A0#include &lt;linux/elfcore.h&gt;<br>
+#include &lt;linux/pm.h&gt;<br>
=C2=A0#include &lt;linux/reboot.h&gt;<br>
=C2=A0#include &lt;linux/tty.h&gt;<br>
=C2=A0#include &lt;linux/console.h&gt;<br>
@@ -40,12 +41,6 @@<br>
=C2=A0#include &quot;proto.h&quot;<br>
=C2=A0#include &quot;pci_impl.h&quot;<br>
<br>
-/*<br>
- * Power off function, if any<br>
- */<br>
-void (*pm_power_off)(void) =3D machine_power_off;<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0#ifdef CONFIG_ALPHA_WTINT<br>
=C2=A0/*<br>
=C2=A0 * Sleep the CPU.<br>
@@ -184,6 +179,8 @@ machine_halt(void)<br>
=C2=A0void<br>
=C2=A0machine_power_off(void)<br>
=C2=A0{<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
+<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 common_shutdown(LINUX_REBOOT_CMD_POWER_OFF, NUL=
L);<br>
=C2=A0}<br>
<br>
diff --git a/arch/arc/kernel/reset.c b/arch/arc/kernel/reset.c<br>
index 2768fa1..0758d9d 100644<br>
--- a/arch/arc/kernel/reset.c<br>
+++ b/arch/arc/kernel/reset.c<br>
@@ -26,9 +26,6 @@ void machine_restart(char *__unused)<br>
<br>
=C2=A0void machine_power_off(void)<br>
=C2=A0{<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0/* FIXME ::=C2=A0 power off ??? */<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 machine_halt();<br>
=C2=A0}<br>
-<br>
-void (*pm_power_off) (void) =3D NULL;<br>
-EXPORT_SYMBOL(pm_power_off);<br>
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c<br>
index fe972a2..aa3f656 100644<br>
--- a/arch/arm/kernel/process.c<br>
+++ b/arch/arm/kernel/process.c<br>
@@ -117,8 +117,6 @@ void soft_restart(unsigned long addr)<br>
=C2=A0/*<br>
=C2=A0 * Function pointers to optional machine specific functions<br>
=C2=A0 */<br>
-void (*pm_power_off)(void);<br>
-EXPORT_SYMBOL(pm_power_off);<br>
<br>
=C2=A0void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd)=
;<br>
<br>
@@ -205,8 +203,7 @@ void machine_power_off(void)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 local_irq_disable();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 smp_send_stop();<br>
<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0if (pm_power_off)<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0}<br>
<br>
=C2=A0/*<br>
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c<br>
index c3065db..46a483a 100644<br>
--- a/arch/arm64/kernel/process.c<br>
+++ b/arch/arm64/kernel/process.c<br>
@@ -68,8 +68,6 @@ void soft_restart(unsigned long addr)<br>
=C2=A0/*<br>
=C2=A0 * Function pointers to optional machine specific functions<br>
=C2=A0 */<br>
-void (*pm_power_off)(void);<br>
-EXPORT_SYMBOL_GPL(pm_power_off);<br>
<br>
=C2=A0void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd)=
;<br>
<br>
@@ -129,8 +127,7 @@ void machine_power_off(void)<br>
=C2=A0{<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 local_irq_disable();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 smp_send_stop();<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0if (pm_power_off)<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0}<br>
<br>
=C2=A0/*<br>
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c<br>
index 42a53e74..529c1f6 100644<br>
--- a/arch/avr32/kernel/process.c<br>
+++ b/arch/avr32/kernel/process.c<br>
@@ -23,9 +23,6 @@<br>
<br>
=C2=A0#include &lt;mach/pm.h&gt;<br>
<br>
-void (*pm_power_off)(void);<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0/*<br>
=C2=A0 * This file handles the architecture-dependent parts of process hand=
ling..<br>
=C2=A0 */<br>
@@ -48,8 +45,7 @@ void machine_halt(void)<br>
<br>
=C2=A0void machine_power_off(void)<br>
=C2=A0{<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0if (pm_power_off)<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0}<br>
<br>
=C2=A0void machine_restart(char *cmd)<br>
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.=
c<br>
index 4aa5545..812dd83 100644<br>
--- a/arch/blackfin/kernel/process.c<br>
+++ b/arch/blackfin/kernel/process.c<br>
@@ -39,9 +39,6 @@ int nr_l1stack_tasks;<br>
=C2=A0void *l1_stack_base;<br>
=C2=A0unsigned long l1_stack_len;<br>
<br>
-void (*pm_power_off)(void) =3D NULL;<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0/*<br>
=C2=A0 * The idle loop on BFIN<br>
=C2=A0 */<br>
diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c<=
br>
index c4f50a3..387d610 100644<br>
--- a/arch/blackfin/kernel/reboot.c<br>
+++ b/arch/blackfin/kernel/reboot.c<br>
@@ -7,6 +7,7 @@<br>
=C2=A0 */<br>
<br>
=C2=A0#include &lt;linux/interrupt.h&gt;<br>
+#include &lt;linux/pm.h&gt;<br>
=C2=A0#include &lt;asm/bfin-global.h&gt;<br>
=C2=A0#include &lt;asm/reboot.h&gt;<br>
=C2=A0#include &lt;asm/bfrom.h&gt;<br>
@@ -106,6 +107,7 @@ void machine_halt(void)<br>
=C2=A0__attribute__((weak))<br>
=C2=A0void native_machine_power_off(void)<br>
=C2=A0{<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 idle_with_irq_disabled();<br>
=C2=A0}<br>
<br>
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c<br>
index 57d2ea8..edf7e5a 100644<br>
--- a/arch/c6x/kernel/process.c<br>
+++ b/arch/c6x/kernel/process.c<br>
@@ -27,12 +27,6 @@ void (*c6x_halt)(void);<br>
=C2=A0extern asmlinkage void ret_from_fork(void);<br>
=C2=A0extern asmlinkage void ret_from_kernel_thread(void);<br>
<br>
-/*<br>
- * power off function, if any<br>
- */<br>
-void (*pm_power_off)(void);<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0void arch_cpu_idle(void)<br>
=C2=A0{<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 unsigned long tmp;<br>
@@ -73,8 +67,7 @@ void machine_halt(void)<br>
<br>
=C2=A0void machine_power_off(void)<br>
=C2=A0{<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0if (pm_power_off)<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 halt_loop();<br>
=C2=A0}<br>
<br>
diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c<br>
index b78498e..9ebd76b 100644<br>
--- a/arch/cris/kernel/process.c<br>
+++ b/arch/cris/kernel/process.c<br>
@@ -31,9 +31,6 @@<br>
<br>
=C2=A0extern void default_idle(void);<br>
<br>
-void (*pm_power_off)(void);<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0void arch_cpu_idle(void)<br>
=C2=A0{<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 default_idle();<br>
@@ -60,6 +57,7 @@ void machine_halt(void)<br>
<br>
=C2=A0void machine_power_off(void)<br>
=C2=A0{<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0}<br>
<br>
=C2=A0/*<br>
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c<br>
index 5d40aeb77..502dabb 100644<br>
--- a/arch/frv/kernel/process.c<br>
+++ b/arch/frv/kernel/process.c<br>
@@ -42,9 +42,6 @@ asmlinkage void ret_from_kernel_thread(void);<br>
<br>
=C2=A0#include &lt;asm/pgalloc.h&gt;<br>
<br>
-void (*pm_power_off)(void);<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0static void core_sleep_idle(void)<br>
=C2=A0{<br>
=C2=A0#ifdef LED_DEBUG_SLEEP<br>
@@ -107,6 +104,8 @@ void machine_power_off(void)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 gdbstub_exit(0);<br>
=C2=A0#endif<br>
<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
+<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 for (;;);<br>
=C2=A0}<br>
<br>
diff --git a/arch/hexagon/kernel/reset.c b/arch/hexagon/kernel/reset.c<br>
index 76483c1..6f607b6 100644<br>
--- a/arch/hexagon/kernel/reset.c<br>
+++ b/arch/hexagon/kernel/reset.c<br>
@@ -16,11 +16,13 @@<br>
=C2=A0 * 02110-1301, USA.<br>
=C2=A0 */<br>
<br>
+#include &lt;linux/pm.h&gt;<br>
=C2=A0#include &lt;linux/smp.h&gt;<br>
=C2=A0#include &lt;asm/hexagon_vm.h&gt;<br>
<br>
=C2=A0void machine_power_off(void)<br>
=C2=A0{<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 smp_send_stop();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 __vmstop();<br>
=C2=A0}<br>
@@ -32,6 +34,3 @@ void machine_halt(void)<br>
=C2=A0void machine_restart(char *cmd)<br>
=C2=A0{<br>
=C2=A0}<br>
-<br>
-void (*pm_power_off)(void) =3D NULL;<br>
-EXPORT_SYMBOL(pm_power_off);<br>
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c<br>
index b515149..88121a2 100644<br>
--- a/arch/ia64/kernel/process.c<br>
+++ b/arch/ia64/kernel/process.c<br>
@@ -57,8 +57,6 @@ void (*ia64_mark_idle)(int);<br>
<br>
=C2=A0unsigned long boot_option_idle_override =3D IDLE_NO_OVERRIDE;<br>
=C2=A0EXPORT_SYMBOL(boot_option_idle_override);<br>
-void (*pm_power_off) (void);<br>
-EXPORT_SYMBOL(pm_power_off);<br>
<br>
=C2=A0void<br>
=C2=A0ia64_do_show_stack (struct unw_frame_info *info, void *arg)<br>
@@ -675,8 +673,7 @@ machine_halt (void)<br>
=C2=A0void<br>
=C2=A0machine_power_off (void)<br>
=C2=A0{<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0if (pm_power_off)<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 machine_halt();<br>
=C2=A0}<br>
<br>
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c<br>
index e69221d..65a037e 100644<br>
--- a/arch/m32r/kernel/process.c<br>
+++ b/arch/m32r/kernel/process.c<br>
@@ -23,6 +23,7 @@<br>
=C2=A0#include &lt;linux/fs.h&gt;<br>
=C2=A0#include &lt;linux/slab.h&gt;<br>
=C2=A0#include &lt;linux/module.h&gt;<br>
+#include &lt;linux/pm.h&gt;<br>
=C2=A0#include &lt;linux/ptrace.h&gt;<br>
=C2=A0#include &lt;linux/unistd.h&gt;<br>
=C2=A0#include &lt;linux/hardirq.h&gt;<br>
@@ -44,9 +45,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)<br=
>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 return tsk-&gt;<a href=3D"http://thread.lr" tar=
get=3D"_blank">thread.lr</a>;<br>
=C2=A0}<br>
<br>
-void (*pm_power_off)(void) =3D NULL;<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0void machine_restart(char *__unused)<br>
=C2=A0{<br>
=C2=A0#if defined(CONFIG_PLAT_MAPPI3)<br>
@@ -67,7 +65,9 @@ void machine_halt(void)<br>
<br>
=C2=A0void machine_power_off(void)<br>
=C2=A0{<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0/* M32R_FIXME */<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0for (;;)<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0;<br>
=C2=A0}<br>
<br>
=C2=A0void show_regs(struct pt_regs * regs)<br>
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c<br>
index afe3d6e..bbc0a63 100644<br>
--- a/arch/m68k/kernel/process.c<br>
+++ b/arch/m68k/kernel/process.c<br>
@@ -78,14 +78,10 @@ void machine_halt(void)<br>
<br>
=C2=A0void machine_power_off(void)<br>
=C2=A0{<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0if (pm_power_off)<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 for (;;);<br>
=C2=A0}<br>
<br>
-void (*pm_power_off)(void) =3D machine_power_off;<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0void show_regs(struct pt_regs * regs)<br>
=C2=A0{<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 printk(&quot;\n&quot;);<br>
diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c<br>
index 483dff9..8d95773 100644<br>
--- a/arch/metag/kernel/process.c<br>
+++ b/arch/metag/kernel/process.c<br>
@@ -67,9 +67,6 @@ void arch_cpu_idle_dead(void)<br>
=C2=A0}<br>
=C2=A0#endif<br>
<br>
-void (*pm_power_off)(void);<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0void (*soc_restart)(char *cmd);<br>
=C2=A0void (*soc_halt)(void);<br>
<br>
@@ -90,8 +87,7 @@ void machine_halt(void)<br>
<br>
=C2=A0void machine_power_off(void)<br>
=C2=A0{<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0if (pm_power_off)<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 smp_send_stop();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 hard_processor_halt(HALT_OK);<br>
=C2=A0}<br>
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/proc=
ess.c<br>
index b2dd371..0ebca36 100644<br>
--- a/arch/microblaze/kernel/process.c<br>
+++ b/arch/microblaze/kernel/process.c<br>
@@ -44,9 +44,6 @@ void show_regs(struct pt_regs *regs)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 regs-&gt;msr, regs-&gt;ear, regs-&gt=
;esr, regs-&gt;fsr);<br>
=C2=A0}<br>
<br>
-void (*pm_power_off)(void) =3D NULL;<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0void flush_thread(void)<br>
=C2=A0{<br>
=C2=A0}<br>
diff --git a/arch/microblaze/kernel/reset.c b/arch/microblaze/kernel/reset.=
c<br>
index fbe58c6..2c6b32c 100644<br>
--- a/arch/microblaze/kernel/reset.c<br>
+++ b/arch/microblaze/kernel/reset.c<br>
@@ -103,6 +103,7 @@ void machine_halt(void)<br>
=C2=A0void machine_power_off(void)<br>
=C2=A0{<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 pr_notice(&quot;Machine power off...\n&quot;);<=
br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 while (1)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ;<br>
=C2=A0}<br>
diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c<br>
index 07fc524..09e74d2 100644<br>
--- a/arch/mips/kernel/reset.c<br>
+++ b/arch/mips/kernel/reset.c<br>
@@ -21,9 +21,6 @@<br>
=C2=A0 */<br>
=C2=A0void (*_machine_restart)(char *command);<br>
=C2=A0void (*_machine_halt)(void);<br>
-void (*pm_power_off)(void);<br>
-<br>
-EXPORT_SYMBOL(pm_power_off);<br>
<br>
=C2=A0void machine_restart(char *command)<br>
=C2=A0{<br>
@@ -39,6 +36,5 @@ void machine_halt(void)<br>
<br>
=C2=A0void machine_power_off(void)<br>
=C2=A0{<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0if (pm_power_off)<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0}<br>
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c<=
br>
index 3707da5..c78b2eb 100644<br>
--- a/arch/mn10300/kernel/process.c<br>
+++ b/arch/mn10300/kernel/process.c<br>
@@ -20,6 +20,7 @@<br>
=C2=A0#include &lt;linux/user.h&gt;<br>
=C2=A0#include &lt;linux/interrupt.h&gt;<br>
=C2=A0#include &lt;linux/delay.h&gt;<br>
+#include &lt;linux/pm.h&gt;<br>
=C2=A0#include &lt;linux/reboot.h&gt;<br>
=C2=A0#include &lt;linux/percpu.h&gt;<br>
=C2=A0#include &lt;linux/err.h&gt;<br>
@@ -45,12 +46,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)<b=
r>
=C2=A0}<br>
<br>
=C2=A0/*<br>
- * power off function, if any<br>
- */<br>
-void (*pm_power_off)(void);<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
-/*<br>
=C2=A0 * On SMP it&#39;s slightly faster (but much more power-consuming!)<b=
r>
=C2=A0 * to poll the -&gt;work.need_resched flag instead of waiting for the=
<br>
=C2=A0 * cross-CPU IPI to arrive. Use this option with caution.<br>
@@ -93,6 +88,7 @@ void machine_power_off(void)<br>
=C2=A0#ifdef CONFIG_KERNEL_DEBUGGER<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 gdbstub_exit(0);<br>
=C2=A0#endif<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0}<br>
<br>
=C2=A0void show_regs(struct pt_regs *regs)<br>
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.=
c<br>
index 386af25..494afd2 100644<br>
--- a/arch/openrisc/kernel/process.c<br>
+++ b/arch/openrisc/kernel/process.c<br>
@@ -25,6 +25,7 @@<br>
=C2=A0#include &lt;linux/kernel.h&gt;<br>
=C2=A0#include &lt;linux/module.h&gt;<br>
=C2=A0#include &lt;linux/mm.h&gt;<br>
+#include &lt;linux/pm.h&gt;<br>
=C2=A0#include &lt;linux/stddef.h&gt;<br>
=C2=A0#include &lt;linux/unistd.h&gt;<br>
=C2=A0#include &lt;linux/ptrace.h&gt;<br>
@@ -51,7 +52,7 @@<br>
=C2=A0 */<br>
=C2=A0struct thread_info *current_thread_info_set[NR_CPUS] =3D { &amp;init_=
thread_info, };<br>
<br>
-void machine_restart(void)<br>
+void machine_restart(char *cmd)<br>
=C2=A0{<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 printk(KERN_INFO &quot;*** MACHINE RESTART ***\=
n&quot;);<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 __asm__(&quot;l.nop 1&quot;);<br>
@@ -72,11 +73,12 @@ void machine_halt(void)<br>
=C2=A0void machine_power_off(void)<br>
=C2=A0{<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 printk(KERN_INFO &quot;*** MACHINE POWER OFF **=
*\n&quot;);<br>
+<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
+<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 __asm__(&quot;l.nop 1&quot;);<br>
=C2=A0}<br>
<br>
-void (*pm_power_off) (void) =3D machine_power_off;<br>
-<br>
=C2=A0/*<br>
=C2=A0 * When a process does an &quot;exec&quot;, machine state like FPU an=
d debug<br>
=C2=A0 * registers need to be reset.=C2=A0 This is a hook function for that=
.<br>
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c<br=
>
index 0bbbf0d..3f5d14a 100644<br>
--- a/arch/parisc/kernel/process.c<br>
+++ b/arch/parisc/kernel/process.c<br>
@@ -41,6 +41,7 @@<br>
=C2=A0#include &lt;linux/fs.h&gt;<br>
=C2=A0#include &lt;linux/module.h&gt;<br>
=C2=A0#include &lt;linux/personality.h&gt;<br>
+#include &lt;linux/pm.h&gt;<br>
=C2=A0#include &lt;linux/ptrace.h&gt;<br>
=C2=A0#include &lt;linux/sched.h&gt;<br>
=C2=A0#include &lt;linux/slab.h&gt;<br>
@@ -133,7 +134,9 @@ void machine_power_off(void)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 pdc_soft_power_button(0);<br>
<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUT=
DOWN);<br>
-<br>
+<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
+<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 /* It seems we have no way to power the system =
off via<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0* software. The user has to press the but=
ton himself. */<br>
<br>
@@ -141,9 +144,6 @@ void machine_power_off(void)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0&quot;Please power t=
his system off now.&quot;);<br>
=C2=A0}<br>
<br>
-void (*pm_power_off)(void) =3D machine_power_off;<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0/*<br>
=C2=A0 * Free current thread data structures etc..<br>
=C2=A0 */<br>
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup=
-common.c<br>
index 1362cd6..5b7a851 100644<br>
--- a/arch/powerpc/kernel/setup-common.c<br>
+++ b/arch/powerpc/kernel/setup-common.c<br>
@@ -141,6 +141,9 @@ void machine_power_off(void)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 machine_shutdown();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 if (ppc_md.power_off)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ppc_md.power_off();=
<br>
+<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
+<br>
=C2=A0#ifdef CONFIG_SMP<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 smp_send_stop();<br>
=C2=A0#endif<br>
@@ -151,9 +154,6 @@ void machine_power_off(void)<br>
=C2=A0/* Used by the G5 thermal driver */<br>
=C2=A0EXPORT_SYMBOL_GPL(machine_power_off);<br>
<br>
-void (*pm_power_off)(void) =3D machine_power_off;<br>
-EXPORT_SYMBOL_GPL(pm_power_off);<br>
-<br>
=C2=A0void machine_halt(void)<br>
=C2=A0{<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 machine_shutdown();<br>
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c<br>
index e80d9ff..267e025 100644<br>
--- a/arch/s390/kernel/setup.c<br>
+++ b/arch/s390/kernel/setup.c<br>
@@ -263,13 +263,9 @@ void machine_power_off(void)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0*/<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 console_unblank();<=
br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 _machine_power_off();<br>
-}<br>
<br>
-/*<br>
- * Dummy power off function.<br>
- */<br>
-void (*pm_power_off)(void) =3D machine_power_off;<br>
-EXPORT_SYMBOL_GPL(pm_power_off);<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
+}<br>
<br>
=C2=A0static int __init early_parse_mem(char *p)<br>
=C2=A0{<br>
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c<br>
index a1519ad3..b76ea67 100644<br>
--- a/arch/score/kernel/process.c<br>
+++ b/arch/score/kernel/process.c<br>
@@ -29,9 +29,6 @@<br>
=C2=A0#include &lt;linux/pm.h&gt;<br>
=C2=A0#include &lt;linux/rcupdate.h&gt;<br>
<br>
-void (*pm_power_off)(void);<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0/* If or when software machine-restart is implemented, add code here.=
 */<br>
=C2=A0void machine_restart(char *command) {}<br>
<br>
@@ -39,7 +36,10 @@ void machine_restart(char *command) {}<br>
=C2=A0void machine_halt(void) {}<br>
<br>
=C2=A0/* If or when software machine-power-off is implemented, add code her=
e. */<br>
-void machine_power_off(void) {}<br>
+void machine_power_off(void)<br>
+{<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
+}<br>
<br>
=C2=A0void ret_from_fork(void);<br>
=C2=A0void ret_from_kernel_thread(void);<br>
diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c<br>
index 04afe5b..065de12 100644<br>
--- a/arch/sh/kernel/reboot.c<br>
+++ b/arch/sh/kernel/reboot.c<br>
@@ -11,9 +11,6 @@<br>
=C2=A0#include &lt;asm/tlbflush.h&gt;<br>
=C2=A0#include &lt;asm/traps.h&gt;<br>
<br>
-void (*pm_power_off)(void);<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0#ifdef CONFIG_SUPERH32<br>
=C2=A0static void watchdog_trigger_immediate(void)<br>
=C2=A0{<br>
@@ -51,8 +48,7 @@ static void native_machine_shutdown(void)<br>
<br>
=C2=A0static void native_machine_power_off(void)<br>
=C2=A0{<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0if (pm_power_off)<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0}<br>
<br>
=C2=A0static void native_machine_halt(void)<br>
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.=
c<br>
index 50e7b62..cb8148a 100644<br>
--- a/arch/sparc/kernel/process_32.c<br>
+++ b/arch/sparc/kernel/process_32.c<br>
@@ -48,14 +48,6 @@<br>
=C2=A0 */<br>
=C2=A0void (*sparc_idle)(void);<br>
<br>
-/*<br>
- * Power-off handler instantiation for pm.h compliance<br>
- * This is done via auxio, but could be used as a fallback<br>
- * handler when auxio is not present-- unused for now...<br>
- */<br>
-void (*pm_power_off)(void) =3D machine_power_off;<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0/*<br>
=C2=A0 * sysctl - toggle power-off restriction for serial console<br>
=C2=A0 * systems in machine_power_off()<br>
@@ -112,6 +104,8 @@ void machine_power_off(void)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 sbus_writeb(power_r=
egister, auxio_power_register);<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 }<br>
<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
+<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 machine_halt();<br>
=C2=A0}<br>
<br>
diff --git a/arch/sparc/kernel/reboot.c b/arch/sparc/kernel/reboot.c<br>
index eba7d91..3c0bb03 100644<br>
--- a/arch/sparc/kernel/reboot.c<br>
+++ b/arch/sparc/kernel/reboot.c<br>
@@ -16,17 +16,13 @@<br>
=C2=A0 */<br>
=C2=A0int scons_pwroff =3D 1;<br>
<br>
-/* This isn&#39;t actually used, it exists merely to satisfy the<br>
- * reference in kernel/sys.c<br>
- */<br>
-void (*pm_power_off)(void) =3D machine_power_off;<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0void machine_power_off(void)<br>
=C2=A0{<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 if (strcmp(of_console_device-&gt;type, &quot;se=
rial&quot;) || scons_pwroff)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 prom_halt_power_off=
();<br>
<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
+<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 prom_halt();<br>
=C2=A0}<br>
<br>
diff --git a/arch/tile/kernel/reboot.c b/arch/tile/kernel/reboot.c<br>
index 6c5d2c0..8ff4a7f 100644<br>
--- a/arch/tile/kernel/reboot.c<br>
+++ b/arch/tile/kernel/reboot.c<br>
@@ -36,6 +36,9 @@ void machine_power_off(void)<br>
=C2=A0{<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 arch_local_irq_disable_all();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 smp_send_stop();<br>
+<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
+<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 hv_power_off();<br>
=C2=A0}<br>
<br>
@@ -45,7 +48,3 @@ void machine_restart(char *cmd)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 smp_send_stop();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 hv_restart((HV_VirtAddr) &quot;vmlinux&quot;, (=
HV_VirtAddr) cmd);<br>
=C2=A0}<br>
-<br>
-/* No interesting distinction to be made here. */<br>
-void (*pm_power_off)(void) =3D NULL;<br>
-EXPORT_SYMBOL(pm_power_off);<br>
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c<br>
index ced8903..a82ef28 100644<br>
--- a/arch/um/kernel/reboot.c<br>
+++ b/arch/um/kernel/reboot.c<br>
@@ -11,8 +11,6 @@<br>
=C2=A0#include &lt;os.h&gt;<br>
=C2=A0#include &lt;skas.h&gt;<br>
<br>
-void (*pm_power_off)(void);<br>
-<br>
=C2=A0static void kill_off_processes(void)<br>
=C2=A0{<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 if (proc_mm)<br>
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/proces=
s.c<br>
index b008e99..9490dd5 100644<br>
--- a/arch/unicore32/kernel/process.c<br>
+++ b/arch/unicore32/kernel/process.c<br>
@@ -56,16 +56,9 @@ void machine_halt(void)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 gpio_set_value(GPO_SOFT_OFF, 0);<br>
=C2=A0}<br>
<br>
-/*<br>
- * Function pointers to optional machine specific functions<br>
- */<br>
-void (*pm_power_off)(void) =3D NULL;<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0void machine_power_off(void)<br>
=C2=A0{<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0if (pm_power_off)<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 machine_halt();<br>
=C2=A0}<br>
<br>
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c<br>
index 17962e6..5c09e28 100644<br>
--- a/arch/x86/kernel/reboot.c<br>
+++ b/arch/x86/kernel/reboot.c<br>
@@ -30,12 +30,6 @@<br>
=C2=A0#include &lt;asm/x86_init.h&gt;<br>
=C2=A0#include &lt;asm/efi.h&gt;<br>
<br>
-/*<br>
- * Power off function, if any<br>
- */<br>
-void (*pm_power_off)(void);<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
=C2=A0static const struct desc_ptr no_idt =3D {};<br>
<br>
=C2=A0/*<br>
@@ -647,11 +641,12 @@ static void native_machine_halt(void)<br>
<br>
=C2=A0static void native_machine_power_off(void)<br>
=C2=A0{<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0if (pm_power_off) {<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0if (have_kernel_power_off()) {<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (!reboot_force)<=
br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 machine_shutdown();<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off=
();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 }<br>
+<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 /* A fallback in case there is no PM info avail=
able */<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 tboot_shutdown(TB_SHUTDOWN_HALT);<br>
=C2=A0}<br>
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c<br>
index 1a3f044..c2c1d74 100644<br>
--- a/arch/x86/xen/enlighten.c<br>
+++ b/arch/x86/xen/enlighten.c<br>
@@ -1320,8 +1320,7 @@ static void xen_machine_halt(void)<br>
<br>
=C2=A0static void xen_machine_power_off(void)<br>
=C2=A0{<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0if (pm_power_off)<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0do_kernel_power_off();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 xen_reboot(SHUTDOWN_poweroff);<br>
=C2=A0}<br>
<br>
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c<br=
>
index 1c85323..c487296 100644<br>
--- a/arch/xtensa/kernel/process.c<br>
+++ b/arch/xtensa/kernel/process.c<br>
@@ -49,10 +49,6 @@ extern void ret_from_kernel_thread(void);<br>
<br>
=C2=A0struct task_struct *current_set[NR_CPUS] =3D {&amp;init_task, };<br>
<br>
-void (*pm_power_off)(void) =3D NULL;<br>
-EXPORT_SYMBOL(pm_power_off);<br>
-<br>
-<br>
=C2=A0#if XTENSA_HAVE_COPROCESSORS<br>
<br>
=C2=A0void coprocessor_release_all(struct thread_info *ti)<br>
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c<br>
index ef31b77..f10cf92 100644<br>
--- a/drivers/parisc/power.c<br>
+++ b/drivers/parisc/power.c<br>
@@ -95,8 +95,7 @@ static void process_shutdown(void)<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 /* send kill signal=
 */<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 if (kill_cad_pid(SI=
GINT, 1)) {<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 /* just in case killing init process failed */<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0if (pm_power_off)<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0kernel_power_off();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 }<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 }<br>
=C2=A0}<br>
diff --git a/kernel/power/poweroff_handler.c b/kernel/power/poweroff_handle=
r.c<br>
index aeb4736..37f0b88 100644<br>
--- a/kernel/power/poweroff_handler.c<br>
+++ b/kernel/power/poweroff_handler.c<br>
@@ -22,6 +22,12 @@<br>
=C2=A0#include &lt;linux/types.h&gt;<br>
<br>
=C2=A0/*<br>
+ * If set, calling this function will power off the system immediately.<br=
>
+ */<br>
+void (*pm_power_off)(void);<br>
+EXPORT_SYMBOL(pm_power_off);<br>
+<br>
+/*<br>
=C2=A0 *=C2=A0 =C2=A0 =C2=A0Notifier list for kernel code which wants to be=
 called<br>
=C2=A0 *=C2=A0 =C2=A0 =C2=A0to power off the system.<br>
=C2=A0 */<br>
@@ -236,6 +242,8 @@ EXPORT_SYMBOL(devm_register_power_off_handler);<br>
=C2=A0void do_kernel_power_off(void)<br>
=C2=A0{<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 spin_lock(&amp;power_off_handler_lock);<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0if (pm_power_off)<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pm_power_off();<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 raw_notifier_call_chain(&amp;power_off_handler_=
list, 0, NULL);<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 spin_unlock(&amp;power_off_handler_lock);<br>
=C2=A0}<br>
diff --git a/kernel/reboot.c b/kernel/reboot.c<br>
index 5925f5a..0930851 100644<br>
--- a/kernel/reboot.c<br>
+++ b/kernel/reboot.c<br>
@@ -306,9 +306,9 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsig=
ned int, cmd,<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 return ret;<br>
<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 /* Instead of trying to make the power_off code=
 look like<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0 * halt when pm_power_off is not set do it the =
easy way.<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0 * halt when no poweroff handler exists do it t=
he easy way.<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0*/<br>
-=C2=A0 =C2=A0 =C2=A0 =C2=A0if ((cmd =3D=3D LINUX_REBOOT_CMD_POWER_OFF) &am=
p;&amp; !pm_power_off)<br>
+=C2=A0 =C2=A0 =C2=A0 =C2=A0if (cmd =3D=3D LINUX_REBOOT_CMD_POWER_OFF &amp;=
&amp; !have_kernel_power_off())<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 cmd =3D LINUX_REBOO=
T_CMD_HALT;<br>
<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 mutex_lock(&amp;reboot_mutex);<br>
<span class=3D"HOEnZb"><font color=3D"#888888">--<br>
1.9.1<br>
<br>
--<br>
To unsubscribe from this list: send the line &quot;unsubscribe linux-kernel=
&quot; in<br>
the body of a message to <a href=3D"mailto:majordomo@vger.kernel.org">major=
domo@vger.kernel.org</a><br>
More majordomo info at=C2=A0 <a href=3D"http://vger.kernel.org/majordomo-in=
fo.html" target=3D"_blank">http://vger.kernel.org/majordomo-info.html</a><b=
r>
Please read the FAQ at=C2=A0 <a href=3D"http://www.tux.org/lkml/" target=3D=
"_blank">http://www.tux.org/lkml/</a><br>
</font></span></blockquote></div><br></div>

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From - Thu Nov 08 21:10:54 2018
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From: Joe Perches <joe@perches.com>
Newsgroups: gmane.comp.video.dri.devel,gmane.linux.kernel,gmane.linux.drivers.video-input-infrastructure,gmane.linux.network,gmane.linux.usb.general,gmane.linux.ports.parisc,gmane.linux.alsa.devel,gmane.linux.kernel.wireless.general,gmane.linux.kernel.input
Subject: [PATCH 00/11] treewide: mask then shift defects and style updates
Date: Sun, 26 Oct 2014 22:24:56 -0700
Lines: 36
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Cc: alsa-devel@alsa-project.org, linux-wireless@vger.kernel.org,
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logical mask has lower precedence than shift but should be
done before the shift so parentheses are generally required.

And when masking with a fixed value after a shift, normal kernel
style has the shift on the left, then the shift on the right so
convert a few non-conforming uses.

Joe Perches (11):
  block: nvme-scsi: Fix probable mask then right shift defects
  radeon: evergreen: Fix probable mask then right shift defects
  aiptek: Fix probable mask then right shift defects
  dvb-net: Fix probable mask then right shift defects
  cx25840/cx18: Use standard ordering of mask and shift
  wm8350-core: Fix probable mask then right shift defect
  iwlwifi: dvm: Fix probable mask then right shift defect
  ssb: driver_chip_comon_pmu: Fix probable mask then right shift defect
  tty: ipwireless: Fix probable mask then right shift defects
  hwa-hc: Fix probable mask then right shift defect
  sound: ad1889: Fix probable mask then right shift defects

 drivers/block/nvme-scsi.c                | 12 ++++++------
 drivers/gpu/drm/radeon/evergreen.c       |  3 ++-
 drivers/input/tablet/aiptek.c            |  6 +++---
 drivers/media/dvb-core/dvb_net.c         |  4 +++-
 drivers/media/i2c/cx25840/cx25840-core.c | 12 ++++++------
 drivers/media/pci/cx18/cx18-av-core.c    | 16 ++++++++--------
 drivers/mfd/wm8350-core.c                |  2 +-
 drivers/net/wireless/iwlwifi/dvm/lib.c   |  4 ++--
 drivers/ssb/driver_chipcommon_pmu.c      |  4 ++--
 drivers/tty/ipwireless/hardware.c        | 12 ++++++------
 drivers/usb/host/hwa-hc.c                |  2 +-
 sound/pci/ad1889.c                       |  8 ++++----
 12 files changed, 44 insertions(+), 41 deletions(-)

-- 
2.1.2

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From: Joe Perches <joe@perches.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 11/11] sound: ad1889: Fix probable mask then right shift defects
Date: Sun, 26 Oct 2014 22:25:07 -0700
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Precedence of & and >> is not the same and is not left to right.
shift has higher precedence and should be done after the mask.

Add parentheses around the mask.

Signed-off-by: Joe Perches <joe@perches.com>
---
 sound/pci/ad1889.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index 7bfdf9c..1610c38 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -681,7 +681,7 @@ snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffe
 	
 	/* WARQ is at offset 12 */
 	tmp = (reg & AD_DS_WSMC_WARQ) ?
-			(((reg & AD_DS_WSMC_WARQ >> 12) & 0x01) ? 12 : 18) : 4;
+		((((reg & AD_DS_WSMC_WARQ) >> 12) & 0x01) ? 12 : 18) : 4;
 	tmp /= (reg & AD_DS_WSMC_WAST) ? 2 : 1;
 	
 	snd_iprintf(buffer, "Wave FIFO: %d %s words\n\n", tmp,
@@ -693,7 +693,7 @@ snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffe
 	
 	/* SYRQ is at offset 4 */
 	tmp = (reg & AD_DS_WSMC_SYRQ) ?
-			(((reg & AD_DS_WSMC_SYRQ >> 4) & 0x01) ? 12 : 18) : 4;
+		((((reg & AD_DS_WSMC_SYRQ) >> 4) & 0x01) ? 12 : 18) : 4;
 	tmp /= (reg & AD_DS_WSMC_WAST) ? 2 : 1;
 	
 	snd_iprintf(buffer, "Synthesis FIFO: %d %s words\n\n", tmp,
@@ -709,7 +709,7 @@ snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffe
 	
 	/* ACRQ is at offset 4 */
 	tmp = (reg & AD_DS_RAMC_ACRQ) ?
-			(((reg & AD_DS_RAMC_ACRQ >> 4) & 0x01) ? 12 : 18) : 4;
+		((((reg & AD_DS_RAMC_ACRQ) >> 4) & 0x01) ? 12 : 18) : 4;
 	tmp /= (reg & AD_DS_RAMC_ADST) ? 2 : 1;
 	
 	snd_iprintf(buffer, "ADC FIFO: %d %s words\n\n", tmp,
@@ -720,7 +720,7 @@ snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffe
 			
 	/* RERQ is at offset 12 */
 	tmp = (reg & AD_DS_RAMC_RERQ) ?
-			(((reg & AD_DS_RAMC_RERQ >> 12) & 0x01) ? 12 : 18) : 4;
+		((((reg & AD_DS_RAMC_RERQ) >> 12) & 0x01) ? 12 : 18) : 4;
 	tmp /= (reg & AD_DS_RAMC_ADST) ? 2 : 1;
 	
 	snd_iprintf(buffer, "Resampler FIFO: %d %s words\n\n", tmp,
-- 
2.1.2


From - Thu Nov 08 21:10:54 2018
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From - Thu Nov 08 21:10:54 2018
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From: Takashi Iwai <tiwai@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.alsa.devel
Subject: Re: [PATCH 11/11] sound: ad1889: Fix probable mask then right shift defects
Date: Mon, 27 Oct 2014 08:41:20 +0100
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Approved: news@gmane.org
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Cc: linux-kernel@vger.kernel.org,
	Thibaut Varene <T-Bone@parisc-linux.org>,
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To: Joe Perches <joe@perches.com>
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At Sun, 26 Oct 2014 22:25:07 -0700,
Joe Perches wrote:
> 
> Precedence of & and >> is not the same and is not left to right.
> shift has higher precedence and should be done after the mask.
> 
> Add parentheses around the mask.
> 
> Signed-off-by: Joe Perches <joe@perches.com>

Thanks, applied.


Takashi


> ---
>  sound/pci/ad1889.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
> index 7bfdf9c..1610c38 100644
> --- a/sound/pci/ad1889.c
> +++ b/sound/pci/ad1889.c
> @@ -681,7 +681,7 @@ snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffe
>  	
>  	/* WARQ is at offset 12 */
>  	tmp = (reg & AD_DS_WSMC_WARQ) ?
> -			(((reg & AD_DS_WSMC_WARQ >> 12) & 0x01) ? 12 : 18) : 4;
> +		((((reg & AD_DS_WSMC_WARQ) >> 12) & 0x01) ? 12 : 18) : 4;
>  	tmp /= (reg & AD_DS_WSMC_WAST) ? 2 : 1;
>  	
>  	snd_iprintf(buffer, "Wave FIFO: %d %s words\n\n", tmp,
> @@ -693,7 +693,7 @@ snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffe
>  	
>  	/* SYRQ is at offset 4 */
>  	tmp = (reg & AD_DS_WSMC_SYRQ) ?
> -			(((reg & AD_DS_WSMC_SYRQ >> 4) & 0x01) ? 12 : 18) : 4;
> +		((((reg & AD_DS_WSMC_SYRQ) >> 4) & 0x01) ? 12 : 18) : 4;
>  	tmp /= (reg & AD_DS_WSMC_WAST) ? 2 : 1;
>  	
>  	snd_iprintf(buffer, "Synthesis FIFO: %d %s words\n\n", tmp,
> @@ -709,7 +709,7 @@ snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffe
>  	
>  	/* ACRQ is at offset 4 */
>  	tmp = (reg & AD_DS_RAMC_ACRQ) ?
> -			(((reg & AD_DS_RAMC_ACRQ >> 4) & 0x01) ? 12 : 18) : 4;
> +		((((reg & AD_DS_RAMC_ACRQ) >> 4) & 0x01) ? 12 : 18) : 4;
>  	tmp /= (reg & AD_DS_RAMC_ADST) ? 2 : 1;
>  	
>  	snd_iprintf(buffer, "ADC FIFO: %d %s words\n\n", tmp,
> @@ -720,7 +720,7 @@ snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffe
>  			
>  	/* RERQ is at offset 12 */
>  	tmp = (reg & AD_DS_RAMC_RERQ) ?
> -			(((reg & AD_DS_RAMC_RERQ >> 12) & 0x01) ? 12 : 18) : 4;
> +		((((reg & AD_DS_RAMC_RERQ) >> 12) & 0x01) ? 12 : 18) : 4;
>  	tmp /= (reg & AD_DS_RAMC_ADST) ? 2 : 1;
>  	
>  	snd_iprintf(buffer, "Resampler FIFO: %d %s words\n\n", tmp,
> -- 
> 2.1.2
> 
--
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From - Thu Nov 08 21:10:54 2018
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From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.linux.kernel,gmane.linux.power-management.general,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.openrisc,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user
Subject: [PATCH v3 08/47] kernel: Move pm_power_off to common code
Date: Mon, 27 Oct 2014 08:55:15 -0700
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Cc: linux-pm@vger.kernel.org, Guenter Roeck <linux@roeck-us.net>,
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pm_power_off is defined for all architectures. Move it to common code.

Have all architectures call do_kernel_power_off instead of pm_power_off.
Some architectures point pm_power_off to machine_power_off. For those,
call do_kernel_power_off from machine_power_off instead.

Acked-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
Acked-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
Acked-by: Richard Weinberger <richard@nod.at>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
v3:
- Replace poweroff in all newly introduced variables and in text
  with power_off or power-off as appropriate
v2:
- do_kernel_poweroff -> do_kernel_power_off
- have_kernel_poweroff -> have_kernel_power_off

 arch/alpha/kernel/process.c        |  9 +++------
 arch/arc/kernel/reset.c            |  5 +----
 arch/arm/kernel/process.c          |  5 +----
 arch/arm64/kernel/process.c        |  5 +----
 arch/avr32/kernel/process.c        |  6 +-----
 arch/blackfin/kernel/process.c     |  3 ---
 arch/blackfin/kernel/reboot.c      |  2 ++
 arch/c6x/kernel/process.c          |  9 +--------
 arch/cris/kernel/process.c         |  4 +---
 arch/frv/kernel/process.c          |  5 ++---
 arch/hexagon/kernel/reset.c        |  5 ++---
 arch/ia64/kernel/process.c         |  5 +----
 arch/m32r/kernel/process.c         |  8 ++++----
 arch/m68k/kernel/process.c         |  6 +-----
 arch/metag/kernel/process.c        |  6 +-----
 arch/microblaze/kernel/process.c   |  3 ---
 arch/microblaze/kernel/reset.c     |  1 +
 arch/mips/kernel/reset.c           |  6 +-----
 arch/mn10300/kernel/process.c      |  8 ++------
 arch/openrisc/kernel/process.c     |  8 +++++---
 arch/parisc/kernel/process.c       |  8 ++++----
 arch/powerpc/kernel/setup-common.c |  6 +++---
 arch/s390/kernel/setup.c           |  8 ++------
 arch/score/kernel/process.c        |  8 ++++----
 arch/sh/kernel/reboot.c            |  6 +-----
 arch/sparc/kernel/process_32.c     | 10 ++--------
 arch/sparc/kernel/reboot.c         |  8 ++------
 arch/tile/kernel/reboot.c          |  7 +++----
 arch/um/kernel/reboot.c            |  2 --
 arch/unicore32/kernel/process.c    |  9 +--------
 arch/x86/kernel/reboot.c           | 11 +++--------
 arch/x86/xen/enlighten.c           |  3 +--
 arch/xtensa/kernel/process.c       |  4 ----
 drivers/parisc/power.c             |  3 +--
 kernel/power/power_off_handler.c   |  8 ++++++++
 kernel/reboot.c                    |  4 ++--
 36 files changed, 68 insertions(+), 146 deletions(-)

diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 1941a07..81c43f8 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -24,6 +24,7 @@
 #include <linux/vt.h>
 #include <linux/mman.h>
 #include <linux/elfcore.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
 #include <linux/tty.h>
 #include <linux/console.h>
@@ -40,12 +41,6 @@
 #include "proto.h"
 #include "pci_impl.h"
 
-/*
- * Power off function, if any
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 #ifdef CONFIG_ALPHA_WTINT
 /*
  * Sleep the CPU.
@@ -184,6 +179,8 @@ machine_halt(void)
 void
 machine_power_off(void)
 {
+	do_kernel_power_off();
+
 	common_shutdown(LINUX_REBOOT_CMD_POWER_OFF, NULL);
 }
 
diff --git a/arch/arc/kernel/reset.c b/arch/arc/kernel/reset.c
index 2768fa1..0758d9d 100644
--- a/arch/arc/kernel/reset.c
+++ b/arch/arc/kernel/reset.c
@@ -26,9 +26,6 @@ void machine_restart(char *__unused)
 
 void machine_power_off(void)
 {
-	/* FIXME ::  power off ??? */
+	do_kernel_power_off();
 	machine_halt();
 }
-
-void (*pm_power_off) (void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index fe972a2..aa3f656 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -117,8 +117,6 @@ void soft_restart(unsigned long addr)
 /*
  * Function pointers to optional machine specific functions
  */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
 
 void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
 
@@ -205,8 +203,7 @@ void machine_power_off(void)
 	local_irq_disable();
 	smp_send_stop();
 
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 /*
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index fde9923..6f623a0 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -68,8 +68,6 @@ void soft_restart(unsigned long addr)
 /*
  * Function pointers to optional machine specific functions
  */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL_GPL(pm_power_off);
 
 void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
 
@@ -129,8 +127,7 @@ void machine_power_off(void)
 {
 	local_irq_disable();
 	smp_send_stop();
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 /*
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 42a53e74..529c1f6 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -23,9 +23,6 @@
 
 #include <mach/pm.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * This file handles the architecture-dependent parts of process handling..
  */
@@ -48,8 +45,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 void machine_restart(char *cmd)
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 4aa5545..812dd83 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -39,9 +39,6 @@ int nr_l1stack_tasks;
 void *l1_stack_base;
 unsigned long l1_stack_len;
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * The idle loop on BFIN
  */
diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
index c4f50a3..387d610 100644
--- a/arch/blackfin/kernel/reboot.c
+++ b/arch/blackfin/kernel/reboot.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/interrupt.h>
+#include <linux/pm.h>
 #include <asm/bfin-global.h>
 #include <asm/reboot.h>
 #include <asm/bfrom.h>
@@ -106,6 +107,7 @@ void machine_halt(void)
 __attribute__((weak))
 void native_machine_power_off(void)
 {
+	do_kernel_power_off();
 	idle_with_irq_disabled();
 }
 
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 57d2ea8..edf7e5a 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -27,12 +27,6 @@ void	(*c6x_halt)(void);
 extern asmlinkage void ret_from_fork(void);
 extern asmlinkage void ret_from_kernel_thread(void);
 
-/*
- * power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void arch_cpu_idle(void)
 {
 	unsigned long tmp;
@@ -73,8 +67,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	halt_loop();
 }
 
diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index b78498e..9ebd76b 100644
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -31,9 +31,6 @@
 
 extern void default_idle(void);
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void arch_cpu_idle(void)
 {
 	default_idle();
@@ -60,6 +57,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
+	do_kernel_power_off();
 }
 
 /*
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index 5d40aeb77..502dabb 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -42,9 +42,6 @@ asmlinkage void ret_from_kernel_thread(void);
 
 #include <asm/pgalloc.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 static void core_sleep_idle(void)
 {
 #ifdef LED_DEBUG_SLEEP
@@ -107,6 +104,8 @@ void machine_power_off(void)
 	gdbstub_exit(0);
 #endif
 
+	do_kernel_power_off();
+
 	for (;;);
 }
 
diff --git a/arch/hexagon/kernel/reset.c b/arch/hexagon/kernel/reset.c
index 76483c1..6f607b6 100644
--- a/arch/hexagon/kernel/reset.c
+++ b/arch/hexagon/kernel/reset.c
@@ -16,11 +16,13 @@
  * 02110-1301, USA.
  */
 
+#include <linux/pm.h>
 #include <linux/smp.h>
 #include <asm/hexagon_vm.h>
 
 void machine_power_off(void)
 {
+	do_kernel_power_off();
 	smp_send_stop();
 	__vmstop();
 }
@@ -32,6 +34,3 @@ void machine_halt(void)
 void machine_restart(char *cmd)
 {
 }
-
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index b515149..88121a2 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -57,8 +57,6 @@ void (*ia64_mark_idle)(int);
 
 unsigned long boot_option_idle_override = IDLE_NO_OVERRIDE;
 EXPORT_SYMBOL(boot_option_idle_override);
-void (*pm_power_off) (void);
-EXPORT_SYMBOL(pm_power_off);
 
 void
 ia64_do_show_stack (struct unw_frame_info *info, void *arg)
@@ -675,8 +673,7 @@ machine_halt (void)
 void
 machine_power_off (void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	machine_halt();
 }
 
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index e69221d..65a037e 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -23,6 +23,7 @@
 #include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/module.h>
+#include <linux/pm.h>
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
 #include <linux/hardirq.h>
@@ -44,9 +45,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 	return tsk->thread.lr;
 }
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_restart(char *__unused)
 {
 #if defined(CONFIG_PLAT_MAPPI3)
@@ -67,7 +65,9 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	/* M32R_FIXME */
+	do_kernel_power_off();
+	for (;;)
+		;
 }
 
 void show_regs(struct pt_regs * regs)
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index afe3d6e..bbc0a63 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -78,14 +78,10 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	for (;;);
 }
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 void show_regs(struct pt_regs * regs)
 {
 	printk("\n");
diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
index 483dff9..8d95773 100644
--- a/arch/metag/kernel/process.c
+++ b/arch/metag/kernel/process.c
@@ -67,9 +67,6 @@ void arch_cpu_idle_dead(void)
 }
 #endif
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void (*soc_restart)(char *cmd);
 void (*soc_halt)(void);
 
@@ -90,8 +87,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	smp_send_stop();
 	hard_processor_halt(HALT_OK);
 }
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index b2dd371..0ebca36 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -44,9 +44,6 @@ void show_regs(struct pt_regs *regs)
 				regs->msr, regs->ear, regs->esr, regs->fsr);
 }
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void flush_thread(void)
 {
 }
diff --git a/arch/microblaze/kernel/reset.c b/arch/microblaze/kernel/reset.c
index fbe58c6..2c6b32c 100644
--- a/arch/microblaze/kernel/reset.c
+++ b/arch/microblaze/kernel/reset.c
@@ -103,6 +103,7 @@ void machine_halt(void)
 void machine_power_off(void)
 {
 	pr_notice("Machine power off...\n");
+	do_kernel_power_off();
 	while (1)
 		;
 }
diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
index 07fc524..09e74d2 100644
--- a/arch/mips/kernel/reset.c
+++ b/arch/mips/kernel/reset.c
@@ -21,9 +21,6 @@
  */
 void (*_machine_restart)(char *command);
 void (*_machine_halt)(void);
-void (*pm_power_off)(void);
-
-EXPORT_SYMBOL(pm_power_off);
 
 void machine_restart(char *command)
 {
@@ -39,6 +36,5 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 3707da5..c78b2eb 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -20,6 +20,7 @@
 #include <linux/user.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
 #include <linux/percpu.h>
 #include <linux/err.h>
@@ -45,12 +46,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 }
 
 /*
- * power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
-/*
  * On SMP it's slightly faster (but much more power-consuming!)
  * to poll the ->work.need_resched flag instead of waiting for the
  * cross-CPU IPI to arrive. Use this option with caution.
@@ -93,6 +88,7 @@ void machine_power_off(void)
 #ifdef CONFIG_KERNEL_DEBUGGER
 	gdbstub_exit(0);
 #endif
+	do_kernel_power_off();
 }
 
 void show_regs(struct pt_regs *regs)
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index 386af25..494afd2 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -25,6 +25,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mm.h>
+#include <linux/pm.h>
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
@@ -51,7 +52,7 @@
  */
 struct thread_info *current_thread_info_set[NR_CPUS] = { &init_thread_info, };
 
-void machine_restart(void)
+void machine_restart(char *cmd)
 {
 	printk(KERN_INFO "*** MACHINE RESTART ***\n");
 	__asm__("l.nop 1");
@@ -72,11 +73,12 @@ void machine_halt(void)
 void machine_power_off(void)
 {
 	printk(KERN_INFO "*** MACHINE POWER OFF ***\n");
+
+	do_kernel_power_off();
+
 	__asm__("l.nop 1");
 }
 
-void (*pm_power_off) (void) = machine_power_off;
-
 /*
  * When a process does an "exec", machine state like FPU and debug
  * registers need to be reset.  This is a hook function for that.
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 0bbbf0d..3f5d14a 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -41,6 +41,7 @@
 #include <linux/fs.h>
 #include <linux/module.h>
 #include <linux/personality.h>
+#include <linux/pm.h>
 #include <linux/ptrace.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
@@ -133,7 +134,9 @@ void machine_power_off(void)
 	pdc_soft_power_button(0);
 	
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
-		
+
+	do_kernel_power_off();
+
 	/* It seems we have no way to power the system off via
 	 * software. The user has to press the button himself. */
 
@@ -141,9 +144,6 @@ void machine_power_off(void)
 	       "Please power this system off now.");
 }
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * Free current thread data structures etc..
  */
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 1362cd6..5b7a851 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -141,6 +141,9 @@ void machine_power_off(void)
 	machine_shutdown();
 	if (ppc_md.power_off)
 		ppc_md.power_off();
+
+	do_kernel_power_off();
+
 #ifdef CONFIG_SMP
 	smp_send_stop();
 #endif
@@ -151,9 +154,6 @@ void machine_power_off(void)
 /* Used by the G5 thermal driver */
 EXPORT_SYMBOL_GPL(machine_power_off);
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL_GPL(pm_power_off);
-
 void machine_halt(void)
 {
 	machine_shutdown();
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index e80d9ff..267e025 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -263,13 +263,9 @@ void machine_power_off(void)
 		 */
 		console_unblank();
 	_machine_power_off();
-}
 
-/*
- * Dummy power off function.
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL_GPL(pm_power_off);
+	do_kernel_power_off();
+}
 
 static int __init early_parse_mem(char *p)
 {
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index a1519ad3..b76ea67 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -29,9 +29,6 @@
 #include <linux/pm.h>
 #include <linux/rcupdate.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 /* If or when software machine-restart is implemented, add code here. */
 void machine_restart(char *command) {}
 
@@ -39,7 +36,10 @@ void machine_restart(char *command) {}
 void machine_halt(void) {}
 
 /* If or when software machine-power-off is implemented, add code here. */
-void machine_power_off(void) {}
+void machine_power_off(void)
+{
+	do_kernel_power_off();
+}
 
 void ret_from_fork(void);
 void ret_from_kernel_thread(void);
diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c
index 04afe5b..065de12 100644
--- a/arch/sh/kernel/reboot.c
+++ b/arch/sh/kernel/reboot.c
@@ -11,9 +11,6 @@
 #include <asm/tlbflush.h>
 #include <asm/traps.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 #ifdef CONFIG_SUPERH32
 static void watchdog_trigger_immediate(void)
 {
@@ -51,8 +48,7 @@ static void native_machine_shutdown(void)
 
 static void native_machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 static void native_machine_halt(void)
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 50e7b62..cb8148a 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -48,14 +48,6 @@
  */
 void (*sparc_idle)(void);
 
-/* 
- * Power-off handler instantiation for pm.h compliance
- * This is done via auxio, but could be used as a fallback
- * handler when auxio is not present-- unused for now...
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * sysctl - toggle power-off restriction for serial console 
  * systems in machine_power_off()
@@ -112,6 +104,8 @@ void machine_power_off(void)
 		sbus_writeb(power_register, auxio_power_register);
 	}
 
+	do_kernel_power_off();
+
 	machine_halt();
 }
 
diff --git a/arch/sparc/kernel/reboot.c b/arch/sparc/kernel/reboot.c
index eba7d91..3c0bb03 100644
--- a/arch/sparc/kernel/reboot.c
+++ b/arch/sparc/kernel/reboot.c
@@ -16,17 +16,13 @@
  */
 int scons_pwroff = 1;
 
-/* This isn't actually used, it exists merely to satisfy the
- * reference in kernel/sys.c
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_power_off(void)
 {
 	if (strcmp(of_console_device->type, "serial") || scons_pwroff)
 		prom_halt_power_off();
 
+	do_kernel_power_off();
+
 	prom_halt();
 }
 
diff --git a/arch/tile/kernel/reboot.c b/arch/tile/kernel/reboot.c
index 6c5d2c0..8ff4a7f 100644
--- a/arch/tile/kernel/reboot.c
+++ b/arch/tile/kernel/reboot.c
@@ -36,6 +36,9 @@ void machine_power_off(void)
 {
 	arch_local_irq_disable_all();
 	smp_send_stop();
+
+	do_kernel_power_off();
+
 	hv_power_off();
 }
 
@@ -45,7 +48,3 @@ void machine_restart(char *cmd)
 	smp_send_stop();
 	hv_restart((HV_VirtAddr) "vmlinux", (HV_VirtAddr) cmd);
 }
-
-/* No interesting distinction to be made here. */
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index ced8903..a82ef28 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -11,8 +11,6 @@
 #include <os.h>
 #include <skas.h>
 
-void (*pm_power_off)(void);
-
 static void kill_off_processes(void)
 {
 	if (proc_mm)
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index b008e99..9490dd5 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -56,16 +56,9 @@ void machine_halt(void)
 	gpio_set_value(GPO_SOFT_OFF, 0);
 }
 
-/*
- * Function pointers to optional machine specific functions
- */
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	machine_halt();
 }
 
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 17962e6..5c09e28 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -30,12 +30,6 @@
 #include <asm/x86_init.h>
 #include <asm/efi.h>
 
-/*
- * Power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 static const struct desc_ptr no_idt = {};
 
 /*
@@ -647,11 +641,12 @@ static void native_machine_halt(void)
 
 static void native_machine_power_off(void)
 {
-	if (pm_power_off) {
+	if (have_kernel_power_off()) {
 		if (!reboot_force)
 			machine_shutdown();
-		pm_power_off();
+		do_kernel_power_off();
 	}
+
 	/* A fallback in case there is no PM info available */
 	tboot_shutdown(TB_SHUTDOWN_HALT);
 }
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index fac5e4f..bc08998 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1320,8 +1320,7 @@ static void xen_machine_halt(void)
 
 static void xen_machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	xen_reboot(SHUTDOWN_poweroff);
 }
 
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 1c85323..c487296 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -49,10 +49,6 @@ extern void ret_from_kernel_thread(void);
 
 struct task_struct *current_set[NR_CPUS] = {&init_task, };
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
-
 #if XTENSA_HAVE_COPROCESSORS
 
 void coprocessor_release_all(struct thread_info *ti)
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index ef31b77..f10cf92 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -95,8 +95,7 @@ static void process_shutdown(void)
 		/* send kill signal */
 		if (kill_cad_pid(SIGINT, 1)) {
 			/* just in case killing init process failed */
-			if (pm_power_off)
-				pm_power_off();
+			kernel_power_off();
 		}
 	}
 }
diff --git a/kernel/power/power_off_handler.c b/kernel/power/power_off_handler.c
index f838e63..97b7163 100644
--- a/kernel/power/power_off_handler.c
+++ b/kernel/power/power_off_handler.c
@@ -22,6 +22,12 @@
 #include <linux/types.h>
 
 /*
+ * If set, calling this function will power off the system immediately.
+ */
+void (*pm_power_off)(void);
+EXPORT_SYMBOL(pm_power_off);
+
+/*
  *	Notifier list for kernel code which wants to be called
  *	to power off the system.
  */
@@ -253,6 +259,8 @@ void do_kernel_power_off(void)
 	 * removed while the call chain is traversed, but we'll have to carry
 	 * that risk.
 	 */
+	if (pm_power_off)
+		pm_power_off();
 	raw_notifier_call_chain(&power_off_handler_list, 0, NULL);
 }
 
diff --git a/kernel/reboot.c b/kernel/reboot.c
index 5925f5a..d87d921 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c
@@ -306,9 +306,9 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd,
 		return ret;
 
 	/* Instead of trying to make the power_off code look like
-	 * halt when pm_power_off is not set do it the easy way.
+	 * halt when no power-off handler exists do it the easy way.
 	 */
-	if ((cmd == LINUX_REBOOT_CMD_POWER_OFF) && !pm_power_off)
+	if (cmd == LINUX_REBOOT_CMD_POWER_OFF && !have_kernel_power_off())
 		cmd = LINUX_REBOOT_CMD_HALT;
 
 	mutex_lock(&reboot_mutex);
-- 
1.9.1


From - Thu Nov 08 21:10:54 2018
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Newsgroups: gmane.linux.kernel.efi,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.virtualization.lguest,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.ports.hexagon,gmane.linux.ports.ppc64.devel,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.uml.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.sh.devel
Subject: Re: [PATCH 33/44] avr32: atngw100: Register with kernel poweroff
 handler
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	Haavard Skinnemoen
To: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
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Around Mon 06 Oct 2014 22:28:35 -0700 or thereabout, Guenter Roeck wrote:
> Register with kernel poweroff handler instead of setting pm_power_off
> directly.
> 
> Cc: Haavard Skinnemoen <hskinnemoen-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: Hans-Christian Egtvedt <egtvedt-BrfabpQBY5qlHtIdYg32fQ@public.gmane.org>
> Signed-off-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>

Acked-by: Hans-Christian Egtvedt <egtvedt-BrfabpQBY5qlHtIdYg32fQ@public.gmane.org>

> ---
>  arch/avr32/boards/atngw100/mrmt.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/avr32/boards/atngw100/mrmt.c b/arch/avr32/boards/atngw100/mrmt.c
> index 91146b4..54d0c27 100644
> --- a/arch/avr32/boards/atngw100/mrmt.c
> +++ b/arch/avr32/boards/atngw100/mrmt.c
> @@ -274,7 +274,7 @@ static int __init mrmt1_init(void)
>  {
>  	gpio_set_value( PIN_PWR_ON, 1 );	/* Ensure PWR_ON is enabled */
>  
> -	pm_power_off = mrmt_power_off;
> +	register_poweroff_handler_simple(mrmt_power_off, 128);
>  
>  	/* Setup USARTS (other than console) */
>  	at32_map_usart(2, 1, 0);	/* USART 2: /dev/ttyS1, RMT1:DB9M */
-- 
mvh
Hans-Christian Egtvedt

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Subject: Re: [PATCH 33/44] avr32: atngw100: Register with kernel poweroff
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	Haavard Skinnemoen
To: Hans-Christian Egtvedt <egtvedt@samfundet.no>
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On 11/01/2014 03:16 AM, Hans-Christian Egtvedt wrote:
> Around Mon 06 Oct 2014 22:28:35 -0700 or thereabout, Guenter Roeck wrote:
>> Register with kernel poweroff handler instead of setting pm_power_off
>> directly.
>>
>> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
>> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
>> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
>
> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
>

Thanks!

Guenter

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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/369703>

pm_power_off is defined for all architectures. Move it to common code.

Have all architectures call do_kernel_power_off instead of pm_power_off.
Some architectures point pm_power_off to machine_power_off. For those,
call do_kernel_power_off from machine_power_off instead.

Acked-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
Acked-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
Acked-by: Richard Weinberger <richard@nod.at>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
v5:
- Rebase to v3.18-rc3
- Update powerpc code to reflect merged power-off handler changes
v4:
- No change
v3:
- Replace poweroff in all newly introduced variables and in text
  with power_off or power-off as appropriate
v2:
- do_kernel_poweroff -> do_kernel_power_off
- have_kernel_poweroff -> have_kernel_power_off

 arch/alpha/kernel/process.c        |  9 +++------
 arch/arc/kernel/reset.c            |  5 +----
 arch/arm/kernel/process.c          |  5 +----
 arch/arm64/kernel/process.c        |  5 +----
 arch/avr32/kernel/process.c        |  6 +-----
 arch/blackfin/kernel/process.c     |  3 ---
 arch/blackfin/kernel/reboot.c      |  2 ++
 arch/c6x/kernel/process.c          |  9 +--------
 arch/cris/kernel/process.c         |  4 +---
 arch/frv/kernel/process.c          |  5 ++---
 arch/hexagon/kernel/reset.c        |  5 ++---
 arch/ia64/kernel/process.c         |  5 +----
 arch/m32r/kernel/process.c         |  8 ++++----
 arch/m68k/kernel/process.c         |  6 +-----
 arch/metag/kernel/process.c        |  6 +-----
 arch/microblaze/kernel/process.c   |  3 ---
 arch/microblaze/kernel/reset.c     |  1 +
 arch/mips/kernel/reset.c           |  6 +-----
 arch/mn10300/kernel/process.c      |  8 ++------
 arch/openrisc/kernel/process.c     |  8 +++++---
 arch/parisc/kernel/process.c       |  8 ++++----
 arch/powerpc/kernel/setup-common.c |  6 +-----
 arch/powerpc/xmon/xmon.c           |  3 +--
 arch/s390/kernel/setup.c           |  8 ++------
 arch/score/kernel/process.c        |  8 ++++----
 arch/sh/kernel/reboot.c            |  6 +-----
 arch/sparc/kernel/process_32.c     | 10 ++--------
 arch/sparc/kernel/reboot.c         |  8 ++------
 arch/tile/kernel/reboot.c          |  7 +++----
 arch/um/kernel/reboot.c            |  2 --
 arch/unicore32/kernel/process.c    |  9 +--------
 arch/x86/kernel/reboot.c           | 11 +++--------
 arch/x86/xen/enlighten.c           |  3 +--
 arch/xtensa/kernel/process.c       |  4 ----
 drivers/parisc/power.c             |  3 +--
 kernel/power/power_off_handler.c   |  9 +++++++++
 kernel/reboot.c                    |  4 ++--
 37 files changed, 68 insertions(+), 150 deletions(-)

diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 1941a07..81c43f8 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -24,6 +24,7 @@
 #include <linux/vt.h>
 #include <linux/mman.h>
 #include <linux/elfcore.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
 #include <linux/tty.h>
 #include <linux/console.h>
@@ -40,12 +41,6 @@
 #include "proto.h"
 #include "pci_impl.h"
 
-/*
- * Power off function, if any
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 #ifdef CONFIG_ALPHA_WTINT
 /*
  * Sleep the CPU.
@@ -184,6 +179,8 @@ machine_halt(void)
 void
 machine_power_off(void)
 {
+	do_kernel_power_off();
+
 	common_shutdown(LINUX_REBOOT_CMD_POWER_OFF, NULL);
 }
 
diff --git a/arch/arc/kernel/reset.c b/arch/arc/kernel/reset.c
index 2768fa1..0758d9d 100644
--- a/arch/arc/kernel/reset.c
+++ b/arch/arc/kernel/reset.c
@@ -26,9 +26,6 @@ void machine_restart(char *__unused)
 
 void machine_power_off(void)
 {
-	/* FIXME ::  power off ??? */
+	do_kernel_power_off();
 	machine_halt();
 }
-
-void (*pm_power_off) (void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index fe972a2..aa3f656 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -117,8 +117,6 @@ void soft_restart(unsigned long addr)
 /*
  * Function pointers to optional machine specific functions
  */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
 
 void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
 
@@ -205,8 +203,7 @@ void machine_power_off(void)
 	local_irq_disable();
 	smp_send_stop();
 
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 /*
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index fde9923..6f623a0 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -68,8 +68,6 @@ void soft_restart(unsigned long addr)
 /*
  * Function pointers to optional machine specific functions
  */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL_GPL(pm_power_off);
 
 void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
 
@@ -129,8 +127,7 @@ void machine_power_off(void)
 {
 	local_irq_disable();
 	smp_send_stop();
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 /*
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 42a53e74..529c1f6 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -23,9 +23,6 @@
 
 #include <mach/pm.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * This file handles the architecture-dependent parts of process handling..
  */
@@ -48,8 +45,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 void machine_restart(char *cmd)
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 4aa5545..812dd83 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -39,9 +39,6 @@ int nr_l1stack_tasks;
 void *l1_stack_base;
 unsigned long l1_stack_len;
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * The idle loop on BFIN
  */
diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
index c4f50a3..387d610 100644
--- a/arch/blackfin/kernel/reboot.c
+++ b/arch/blackfin/kernel/reboot.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/interrupt.h>
+#include <linux/pm.h>
 #include <asm/bfin-global.h>
 #include <asm/reboot.h>
 #include <asm/bfrom.h>
@@ -106,6 +107,7 @@ void machine_halt(void)
 __attribute__((weak))
 void native_machine_power_off(void)
 {
+	do_kernel_power_off();
 	idle_with_irq_disabled();
 }
 
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 57d2ea8..edf7e5a 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -27,12 +27,6 @@ void	(*c6x_halt)(void);
 extern asmlinkage void ret_from_fork(void);
 extern asmlinkage void ret_from_kernel_thread(void);
 
-/*
- * power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void arch_cpu_idle(void)
 {
 	unsigned long tmp;
@@ -73,8 +67,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	halt_loop();
 }
 
diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index b78498e..9ebd76b 100644
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -31,9 +31,6 @@
 
 extern void default_idle(void);
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void arch_cpu_idle(void)
 {
 	default_idle();
@@ -60,6 +57,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
+	do_kernel_power_off();
 }
 
 /*
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index 5d40aeb77..502dabb 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -42,9 +42,6 @@ asmlinkage void ret_from_kernel_thread(void);
 
 #include <asm/pgalloc.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 static void core_sleep_idle(void)
 {
 #ifdef LED_DEBUG_SLEEP
@@ -107,6 +104,8 @@ void machine_power_off(void)
 	gdbstub_exit(0);
 #endif
 
+	do_kernel_power_off();
+
 	for (;;);
 }
 
diff --git a/arch/hexagon/kernel/reset.c b/arch/hexagon/kernel/reset.c
index 76483c1..6f607b6 100644
--- a/arch/hexagon/kernel/reset.c
+++ b/arch/hexagon/kernel/reset.c
@@ -16,11 +16,13 @@
  * 02110-1301, USA.
  */
 
+#include <linux/pm.h>
 #include <linux/smp.h>
 #include <asm/hexagon_vm.h>
 
 void machine_power_off(void)
 {
+	do_kernel_power_off();
 	smp_send_stop();
 	__vmstop();
 }
@@ -32,6 +34,3 @@ void machine_halt(void)
 void machine_restart(char *cmd)
 {
 }
-
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index b515149..88121a2 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -57,8 +57,6 @@ void (*ia64_mark_idle)(int);
 
 unsigned long boot_option_idle_override = IDLE_NO_OVERRIDE;
 EXPORT_SYMBOL(boot_option_idle_override);
-void (*pm_power_off) (void);
-EXPORT_SYMBOL(pm_power_off);
 
 void
 ia64_do_show_stack (struct unw_frame_info *info, void *arg)
@@ -675,8 +673,7 @@ machine_halt (void)
 void
 machine_power_off (void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	machine_halt();
 }
 
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index e69221d..65a037e 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -23,6 +23,7 @@
 #include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/module.h>
+#include <linux/pm.h>
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
 #include <linux/hardirq.h>
@@ -44,9 +45,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 	return tsk->thread.lr;
 }
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_restart(char *__unused)
 {
 #if defined(CONFIG_PLAT_MAPPI3)
@@ -67,7 +65,9 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	/* M32R_FIXME */
+	do_kernel_power_off();
+	for (;;)
+		;
 }
 
 void show_regs(struct pt_regs * regs)
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index afe3d6e..bbc0a63 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -78,14 +78,10 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	for (;;);
 }
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 void show_regs(struct pt_regs * regs)
 {
 	printk("\n");
diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
index 483dff9..8d95773 100644
--- a/arch/metag/kernel/process.c
+++ b/arch/metag/kernel/process.c
@@ -67,9 +67,6 @@ void arch_cpu_idle_dead(void)
 }
 #endif
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void (*soc_restart)(char *cmd);
 void (*soc_halt)(void);
 
@@ -90,8 +87,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	smp_send_stop();
 	hard_processor_halt(HALT_OK);
 }
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index b2dd371..0ebca36 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -44,9 +44,6 @@ void show_regs(struct pt_regs *regs)
 				regs->msr, regs->ear, regs->esr, regs->fsr);
 }
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void flush_thread(void)
 {
 }
diff --git a/arch/microblaze/kernel/reset.c b/arch/microblaze/kernel/reset.c
index fbe58c6..2c6b32c 100644
--- a/arch/microblaze/kernel/reset.c
+++ b/arch/microblaze/kernel/reset.c
@@ -103,6 +103,7 @@ void machine_halt(void)
 void machine_power_off(void)
 {
 	pr_notice("Machine power off...\n");
+	do_kernel_power_off();
 	while (1)
 		;
 }
diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
index 07fc524..09e74d2 100644
--- a/arch/mips/kernel/reset.c
+++ b/arch/mips/kernel/reset.c
@@ -21,9 +21,6 @@
  */
 void (*_machine_restart)(char *command);
 void (*_machine_halt)(void);
-void (*pm_power_off)(void);
-
-EXPORT_SYMBOL(pm_power_off);
 
 void machine_restart(char *command)
 {
@@ -39,6 +36,5 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 3707da5..c78b2eb 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -20,6 +20,7 @@
 #include <linux/user.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
 #include <linux/percpu.h>
 #include <linux/err.h>
@@ -45,12 +46,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 }
 
 /*
- * power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
-/*
  * On SMP it's slightly faster (but much more power-consuming!)
  * to poll the ->work.need_resched flag instead of waiting for the
  * cross-CPU IPI to arrive. Use this option with caution.
@@ -93,6 +88,7 @@ void machine_power_off(void)
 #ifdef CONFIG_KERNEL_DEBUGGER
 	gdbstub_exit(0);
 #endif
+	do_kernel_power_off();
 }
 
 void show_regs(struct pt_regs *regs)
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index 386af25..494afd2 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -25,6 +25,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mm.h>
+#include <linux/pm.h>
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
@@ -51,7 +52,7 @@
  */
 struct thread_info *current_thread_info_set[NR_CPUS] = { &init_thread_info, };
 
-void machine_restart(void)
+void machine_restart(char *cmd)
 {
 	printk(KERN_INFO "*** MACHINE RESTART ***\n");
 	__asm__("l.nop 1");
@@ -72,11 +73,12 @@ void machine_halt(void)
 void machine_power_off(void)
 {
 	printk(KERN_INFO "*** MACHINE POWER OFF ***\n");
+
+	do_kernel_power_off();
+
 	__asm__("l.nop 1");
 }
 
-void (*pm_power_off) (void) = machine_power_off;
-
 /*
  * When a process does an "exec", machine state like FPU and debug
  * registers need to be reset.  This is a hook function for that.
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 0bbbf0d..3f5d14a 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -41,6 +41,7 @@
 #include <linux/fs.h>
 #include <linux/module.h>
 #include <linux/personality.h>
+#include <linux/pm.h>
 #include <linux/ptrace.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
@@ -133,7 +134,9 @@ void machine_power_off(void)
 	pdc_soft_power_button(0);
 	
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
-		
+
+	do_kernel_power_off();
+
 	/* It seems we have no way to power the system off via
 	 * software. The user has to press the button himself. */
 
@@ -141,9 +144,6 @@ void machine_power_off(void)
 	       "Please power this system off now.");
 }
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * Free current thread data structures etc..
  */
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 44c8d03..a2efce7 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -139,8 +139,7 @@ void machine_restart(char *cmd)
 void machine_power_off(void)
 {
 	machine_shutdown();
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 #ifdef CONFIG_SMP
 	smp_send_stop();
 #endif
@@ -151,9 +150,6 @@ void machine_power_off(void)
 /* Used by the G5 thermal driver */
 EXPORT_SYMBOL_GPL(machine_power_off);
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL_GPL(pm_power_off);
-
 void machine_halt(void)
 {
 	machine_shutdown();
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 506d256..8780178 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -981,8 +981,7 @@ static void bootcmds(void)
 	else if (cmd == 'h')
 		ppc_md.halt();
 	else if (cmd == 'p')
-		if (pm_power_off)
-			pm_power_off();
+		do_kernel_power_off();
 }
 
 static int cpu_cmd(void)
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index e80d9ff..267e025 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -263,13 +263,9 @@ void machine_power_off(void)
 		 */
 		console_unblank();
 	_machine_power_off();
-}
 
-/*
- * Dummy power off function.
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL_GPL(pm_power_off);
+	do_kernel_power_off();
+}
 
 static int __init early_parse_mem(char *p)
 {
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index a1519ad3..b76ea67 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -29,9 +29,6 @@
 #include <linux/pm.h>
 #include <linux/rcupdate.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 /* If or when software machine-restart is implemented, add code here. */
 void machine_restart(char *command) {}
 
@@ -39,7 +36,10 @@ void machine_restart(char *command) {}
 void machine_halt(void) {}
 
 /* If or when software machine-power-off is implemented, add code here. */
-void machine_power_off(void) {}
+void machine_power_off(void)
+{
+	do_kernel_power_off();
+}
 
 void ret_from_fork(void);
 void ret_from_kernel_thread(void);
diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c
index 04afe5b..065de12 100644
--- a/arch/sh/kernel/reboot.c
+++ b/arch/sh/kernel/reboot.c
@@ -11,9 +11,6 @@
 #include <asm/tlbflush.h>
 #include <asm/traps.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 #ifdef CONFIG_SUPERH32
 static void watchdog_trigger_immediate(void)
 {
@@ -51,8 +48,7 @@ static void native_machine_shutdown(void)
 
 static void native_machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 static void native_machine_halt(void)
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 50e7b62..cb8148a 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -48,14 +48,6 @@
  */
 void (*sparc_idle)(void);
 
-/* 
- * Power-off handler instantiation for pm.h compliance
- * This is done via auxio, but could be used as a fallback
- * handler when auxio is not present-- unused for now...
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * sysctl - toggle power-off restriction for serial console 
  * systems in machine_power_off()
@@ -112,6 +104,8 @@ void machine_power_off(void)
 		sbus_writeb(power_register, auxio_power_register);
 	}
 
+	do_kernel_power_off();
+
 	machine_halt();
 }
 
diff --git a/arch/sparc/kernel/reboot.c b/arch/sparc/kernel/reboot.c
index eba7d91..3c0bb03 100644
--- a/arch/sparc/kernel/reboot.c
+++ b/arch/sparc/kernel/reboot.c
@@ -16,17 +16,13 @@
  */
 int scons_pwroff = 1;
 
-/* This isn't actually used, it exists merely to satisfy the
- * reference in kernel/sys.c
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_power_off(void)
 {
 	if (strcmp(of_console_device->type, "serial") || scons_pwroff)
 		prom_halt_power_off();
 
+	do_kernel_power_off();
+
 	prom_halt();
 }
 
diff --git a/arch/tile/kernel/reboot.c b/arch/tile/kernel/reboot.c
index 6c5d2c0..8ff4a7f 100644
--- a/arch/tile/kernel/reboot.c
+++ b/arch/tile/kernel/reboot.c
@@ -36,6 +36,9 @@ void machine_power_off(void)
 {
 	arch_local_irq_disable_all();
 	smp_send_stop();
+
+	do_kernel_power_off();
+
 	hv_power_off();
 }
 
@@ -45,7 +48,3 @@ void machine_restart(char *cmd)
 	smp_send_stop();
 	hv_restart((HV_VirtAddr) "vmlinux", (HV_VirtAddr) cmd);
 }
-
-/* No interesting distinction to be made here. */
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index ced8903..a82ef28 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -11,8 +11,6 @@
 #include <os.h>
 #include <skas.h>
 
-void (*pm_power_off)(void);
-
 static void kill_off_processes(void)
 {
 	if (proc_mm)
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index b008e99..9490dd5 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -56,16 +56,9 @@ void machine_halt(void)
 	gpio_set_value(GPO_SOFT_OFF, 0);
 }
 
-/*
- * Function pointers to optional machine specific functions
- */
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	machine_halt();
 }
 
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 17962e6..5c09e28 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -30,12 +30,6 @@
 #include <asm/x86_init.h>
 #include <asm/efi.h>
 
-/*
- * Power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 static const struct desc_ptr no_idt = {};
 
 /*
@@ -647,11 +641,12 @@ static void native_machine_halt(void)
 
 static void native_machine_power_off(void)
 {
-	if (pm_power_off) {
+	if (have_kernel_power_off()) {
 		if (!reboot_force)
 			machine_shutdown();
-		pm_power_off();
+		do_kernel_power_off();
 	}
+
 	/* A fallback in case there is no PM info available */
 	tboot_shutdown(TB_SHUTDOWN_HALT);
 }
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index fac5e4f..bc08998 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1320,8 +1320,7 @@ static void xen_machine_halt(void)
 
 static void xen_machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	xen_reboot(SHUTDOWN_poweroff);
 }
 
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 1c85323..c487296 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -49,10 +49,6 @@ extern void ret_from_kernel_thread(void);
 
 struct task_struct *current_set[NR_CPUS] = {&init_task, };
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
-
 #if XTENSA_HAVE_COPROCESSORS
 
 void coprocessor_release_all(struct thread_info *ti)
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index ef31b77..f10cf92 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -95,8 +95,7 @@ static void process_shutdown(void)
 		/* send kill signal */
 		if (kill_cad_pid(SIGINT, 1)) {
 			/* just in case killing init process failed */
-			if (pm_power_off)
-				pm_power_off();
+			kernel_power_off();
 		}
 	}
 }
diff --git a/kernel/power/power_off_handler.c b/kernel/power/power_off_handler.c
index e576534..e283ea1 100644
--- a/kernel/power/power_off_handler.c
+++ b/kernel/power/power_off_handler.c
@@ -23,6 +23,12 @@
 #include <linux/types.h>
 
 /*
+ * If set, calling this function will power off the system immediately.
+ */
+void (*pm_power_off)(void);
+EXPORT_SYMBOL(pm_power_off);
+
+/*
  * List of handlers for kernel code which wants to be called
  * to power off the system.
  */
@@ -272,6 +278,9 @@ void do_kernel_power_off(void)
 	 * that risk.
 	 */
 
+	if (pm_power_off)
+		pm_power_off();
+
 	p = rcu_dereference_raw(power_off_handler_list);
 	while (p) {
 		next_p = rcu_dereference_raw(p->next);
diff --git a/kernel/reboot.c b/kernel/reboot.c
index 5925f5a..d87d921 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c
@@ -306,9 +306,9 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd,
 		return ret;
 
 	/* Instead of trying to make the power_off code look like
-	 * halt when pm_power_off is not set do it the easy way.
+	 * halt when no power-off handler exists do it the easy way.
 	 */
-	if ((cmd == LINUX_REBOOT_CMD_POWER_OFF) && !pm_power_off)
+	if (cmd == LINUX_REBOOT_CMD_POWER_OFF && !have_kernel_power_off())
 		cmd = LINUX_REBOOT_CMD_HALT;
 
 	mutex_lock(&reboot_mutex);
-- 
1.9.1

From - Thu Nov 08 21:10:55 2018
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From: Guenter Roeck <linux@roeck-us.net>
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Subject: [PATCH v6 08/48] kernel: Move pm_power_off to common code
Date: Sun,  9 Nov 2014 17:42:25 -0800
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Cc: linux-pm@vger.kernel.org, Guenter Roeck <linux@roeck-us.net>,
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pm_power_off is defined for all architectures. Move it to common code.

Have all architectures call do_kernel_power_off instead of pm_power_off.
Some architectures point pm_power_off to machine_power_off. For those,
call do_kernel_power_off from machine_power_off instead.

Acked-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
Acked-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
Acked-by: Richard Weinberger <richard@nod.at>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
v6:
- No change.
v5:
- Rebase to v3.18-rc3
- Update powerpc code to reflect merged power-off handler changes
v4:
- No change
v3:
- Replace poweroff in all newly introduced variables and in text
  with power_off or power-off as appropriate
v2:
- do_kernel_poweroff -> do_kernel_power_off
- have_kernel_poweroff -> have_kernel_power_off

 arch/alpha/kernel/process.c        |  9 +++------
 arch/arc/kernel/reset.c            |  5 +----
 arch/arm/kernel/process.c          |  5 +----
 arch/arm64/kernel/process.c        |  5 +----
 arch/avr32/kernel/process.c        |  6 +-----
 arch/blackfin/kernel/process.c     |  3 ---
 arch/blackfin/kernel/reboot.c      |  2 ++
 arch/c6x/kernel/process.c          |  9 +--------
 arch/cris/kernel/process.c         |  4 +---
 arch/frv/kernel/process.c          |  5 ++---
 arch/hexagon/kernel/reset.c        |  5 ++---
 arch/ia64/kernel/process.c         |  5 +----
 arch/m32r/kernel/process.c         |  8 ++++----
 arch/m68k/kernel/process.c         |  6 +-----
 arch/metag/kernel/process.c        |  6 +-----
 arch/microblaze/kernel/process.c   |  3 ---
 arch/microblaze/kernel/reset.c     |  1 +
 arch/mips/kernel/reset.c           |  6 +-----
 arch/mn10300/kernel/process.c      |  8 ++------
 arch/openrisc/kernel/process.c     |  8 +++++---
 arch/parisc/kernel/process.c       |  8 ++++----
 arch/powerpc/kernel/setup-common.c |  6 +-----
 arch/powerpc/xmon/xmon.c           |  3 +--
 arch/s390/kernel/setup.c           |  8 ++------
 arch/score/kernel/process.c        |  8 ++++----
 arch/sh/kernel/reboot.c            |  6 +-----
 arch/sparc/kernel/process_32.c     | 10 ++--------
 arch/sparc/kernel/reboot.c         |  8 ++------
 arch/tile/kernel/reboot.c          |  7 +++----
 arch/um/kernel/reboot.c            |  2 --
 arch/unicore32/kernel/process.c    |  9 +--------
 arch/x86/kernel/reboot.c           | 11 +++--------
 arch/x86/xen/enlighten.c           |  3 +--
 arch/xtensa/kernel/process.c       |  4 ----
 drivers/parisc/power.c             |  3 +--
 kernel/power/power_off_handler.c   |  9 +++++++++
 kernel/reboot.c                    |  4 ++--
 37 files changed, 68 insertions(+), 150 deletions(-)

diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 1941a07..81c43f8 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -24,6 +24,7 @@
 #include <linux/vt.h>
 #include <linux/mman.h>
 #include <linux/elfcore.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
 #include <linux/tty.h>
 #include <linux/console.h>
@@ -40,12 +41,6 @@
 #include "proto.h"
 #include "pci_impl.h"
 
-/*
- * Power off function, if any
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 #ifdef CONFIG_ALPHA_WTINT
 /*
  * Sleep the CPU.
@@ -184,6 +179,8 @@ machine_halt(void)
 void
 machine_power_off(void)
 {
+	do_kernel_power_off();
+
 	common_shutdown(LINUX_REBOOT_CMD_POWER_OFF, NULL);
 }
 
diff --git a/arch/arc/kernel/reset.c b/arch/arc/kernel/reset.c
index 2768fa1..0758d9d 100644
--- a/arch/arc/kernel/reset.c
+++ b/arch/arc/kernel/reset.c
@@ -26,9 +26,6 @@ void machine_restart(char *__unused)
 
 void machine_power_off(void)
 {
-	/* FIXME ::  power off ??? */
+	do_kernel_power_off();
 	machine_halt();
 }
-
-void (*pm_power_off) (void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index fe972a2..aa3f656 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -117,8 +117,6 @@ void soft_restart(unsigned long addr)
 /*
  * Function pointers to optional machine specific functions
  */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
 
 void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
 
@@ -205,8 +203,7 @@ void machine_power_off(void)
 	local_irq_disable();
 	smp_send_stop();
 
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 /*
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index fde9923..6f623a0 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -68,8 +68,6 @@ void soft_restart(unsigned long addr)
 /*
  * Function pointers to optional machine specific functions
  */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL_GPL(pm_power_off);
 
 void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
 
@@ -129,8 +127,7 @@ void machine_power_off(void)
 {
 	local_irq_disable();
 	smp_send_stop();
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 /*
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 42a53e74..529c1f6 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -23,9 +23,6 @@
 
 #include <mach/pm.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * This file handles the architecture-dependent parts of process handling..
  */
@@ -48,8 +45,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 void machine_restart(char *cmd)
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 4aa5545..812dd83 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -39,9 +39,6 @@ int nr_l1stack_tasks;
 void *l1_stack_base;
 unsigned long l1_stack_len;
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * The idle loop on BFIN
  */
diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
index c4f50a3..387d610 100644
--- a/arch/blackfin/kernel/reboot.c
+++ b/arch/blackfin/kernel/reboot.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/interrupt.h>
+#include <linux/pm.h>
 #include <asm/bfin-global.h>
 #include <asm/reboot.h>
 #include <asm/bfrom.h>
@@ -106,6 +107,7 @@ void machine_halt(void)
 __attribute__((weak))
 void native_machine_power_off(void)
 {
+	do_kernel_power_off();
 	idle_with_irq_disabled();
 }
 
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 57d2ea8..edf7e5a 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -27,12 +27,6 @@ void	(*c6x_halt)(void);
 extern asmlinkage void ret_from_fork(void);
 extern asmlinkage void ret_from_kernel_thread(void);
 
-/*
- * power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void arch_cpu_idle(void)
 {
 	unsigned long tmp;
@@ -73,8 +67,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	halt_loop();
 }
 
diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index b78498e..9ebd76b 100644
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -31,9 +31,6 @@
 
 extern void default_idle(void);
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void arch_cpu_idle(void)
 {
 	default_idle();
@@ -60,6 +57,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
+	do_kernel_power_off();
 }
 
 /*
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index 5d40aeb77..502dabb 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -42,9 +42,6 @@ asmlinkage void ret_from_kernel_thread(void);
 
 #include <asm/pgalloc.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 static void core_sleep_idle(void)
 {
 #ifdef LED_DEBUG_SLEEP
@@ -107,6 +104,8 @@ void machine_power_off(void)
 	gdbstub_exit(0);
 #endif
 
+	do_kernel_power_off();
+
 	for (;;);
 }
 
diff --git a/arch/hexagon/kernel/reset.c b/arch/hexagon/kernel/reset.c
index 76483c1..6f607b6 100644
--- a/arch/hexagon/kernel/reset.c
+++ b/arch/hexagon/kernel/reset.c
@@ -16,11 +16,13 @@
  * 02110-1301, USA.
  */
 
+#include <linux/pm.h>
 #include <linux/smp.h>
 #include <asm/hexagon_vm.h>
 
 void machine_power_off(void)
 {
+	do_kernel_power_off();
 	smp_send_stop();
 	__vmstop();
 }
@@ -32,6 +34,3 @@ void machine_halt(void)
 void machine_restart(char *cmd)
 {
 }
-
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index b515149..88121a2 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -57,8 +57,6 @@ void (*ia64_mark_idle)(int);
 
 unsigned long boot_option_idle_override = IDLE_NO_OVERRIDE;
 EXPORT_SYMBOL(boot_option_idle_override);
-void (*pm_power_off) (void);
-EXPORT_SYMBOL(pm_power_off);
 
 void
 ia64_do_show_stack (struct unw_frame_info *info, void *arg)
@@ -675,8 +673,7 @@ machine_halt (void)
 void
 machine_power_off (void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	machine_halt();
 }
 
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index e69221d..65a037e 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -23,6 +23,7 @@
 #include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/module.h>
+#include <linux/pm.h>
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
 #include <linux/hardirq.h>
@@ -44,9 +45,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 	return tsk->thread.lr;
 }
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_restart(char *__unused)
 {
 #if defined(CONFIG_PLAT_MAPPI3)
@@ -67,7 +65,9 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	/* M32R_FIXME */
+	do_kernel_power_off();
+	for (;;)
+		;
 }
 
 void show_regs(struct pt_regs * regs)
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index afe3d6e..bbc0a63 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -78,14 +78,10 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	for (;;);
 }
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 void show_regs(struct pt_regs * regs)
 {
 	printk("\n");
diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
index 483dff9..8d95773 100644
--- a/arch/metag/kernel/process.c
+++ b/arch/metag/kernel/process.c
@@ -67,9 +67,6 @@ void arch_cpu_idle_dead(void)
 }
 #endif
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void (*soc_restart)(char *cmd);
 void (*soc_halt)(void);
 
@@ -90,8 +87,7 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	smp_send_stop();
 	hard_processor_halt(HALT_OK);
 }
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index b2dd371..0ebca36 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -44,9 +44,6 @@ void show_regs(struct pt_regs *regs)
 				regs->msr, regs->ear, regs->esr, regs->fsr);
 }
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void flush_thread(void)
 {
 }
diff --git a/arch/microblaze/kernel/reset.c b/arch/microblaze/kernel/reset.c
index fbe58c6..2c6b32c 100644
--- a/arch/microblaze/kernel/reset.c
+++ b/arch/microblaze/kernel/reset.c
@@ -103,6 +103,7 @@ void machine_halt(void)
 void machine_power_off(void)
 {
 	pr_notice("Machine power off...\n");
+	do_kernel_power_off();
 	while (1)
 		;
 }
diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
index 07fc524..09e74d2 100644
--- a/arch/mips/kernel/reset.c
+++ b/arch/mips/kernel/reset.c
@@ -21,9 +21,6 @@
  */
 void (*_machine_restart)(char *command);
 void (*_machine_halt)(void);
-void (*pm_power_off)(void);
-
-EXPORT_SYMBOL(pm_power_off);
 
 void machine_restart(char *command)
 {
@@ -39,6 +36,5 @@ void machine_halt(void)
 
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 3707da5..c78b2eb 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -20,6 +20,7 @@
 #include <linux/user.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
+#include <linux/pm.h>
 #include <linux/reboot.h>
 #include <linux/percpu.h>
 #include <linux/err.h>
@@ -45,12 +46,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 }
 
 /*
- * power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
-/*
  * On SMP it's slightly faster (but much more power-consuming!)
  * to poll the ->work.need_resched flag instead of waiting for the
  * cross-CPU IPI to arrive. Use this option with caution.
@@ -93,6 +88,7 @@ void machine_power_off(void)
 #ifdef CONFIG_KERNEL_DEBUGGER
 	gdbstub_exit(0);
 #endif
+	do_kernel_power_off();
 }
 
 void show_regs(struct pt_regs *regs)
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index 386af25..494afd2 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -25,6 +25,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mm.h>
+#include <linux/pm.h>
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
@@ -51,7 +52,7 @@
  */
 struct thread_info *current_thread_info_set[NR_CPUS] = { &init_thread_info, };
 
-void machine_restart(void)
+void machine_restart(char *cmd)
 {
 	printk(KERN_INFO "*** MACHINE RESTART ***\n");
 	__asm__("l.nop 1");
@@ -72,11 +73,12 @@ void machine_halt(void)
 void machine_power_off(void)
 {
 	printk(KERN_INFO "*** MACHINE POWER OFF ***\n");
+
+	do_kernel_power_off();
+
 	__asm__("l.nop 1");
 }
 
-void (*pm_power_off) (void) = machine_power_off;
-
 /*
  * When a process does an "exec", machine state like FPU and debug
  * registers need to be reset.  This is a hook function for that.
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 0bbbf0d..3f5d14a 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -41,6 +41,7 @@
 #include <linux/fs.h>
 #include <linux/module.h>
 #include <linux/personality.h>
+#include <linux/pm.h>
 #include <linux/ptrace.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
@@ -133,7 +134,9 @@ void machine_power_off(void)
 	pdc_soft_power_button(0);
 	
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
-		
+
+	do_kernel_power_off();
+
 	/* It seems we have no way to power the system off via
 	 * software. The user has to press the button himself. */
 
@@ -141,9 +144,6 @@ void machine_power_off(void)
 	       "Please power this system off now.");
 }
 
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * Free current thread data structures etc..
  */
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 44c8d03..a2efce7 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -139,8 +139,7 @@ void machine_restart(char *cmd)
 void machine_power_off(void)
 {
 	machine_shutdown();
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 #ifdef CONFIG_SMP
 	smp_send_stop();
 #endif
@@ -151,9 +150,6 @@ void machine_power_off(void)
 /* Used by the G5 thermal driver */
 EXPORT_SYMBOL_GPL(machine_power_off);
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL_GPL(pm_power_off);
-
 void machine_halt(void)
 {
 	machine_shutdown();
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 506d256..8780178 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -981,8 +981,7 @@ static void bootcmds(void)
 	else if (cmd == 'h')
 		ppc_md.halt();
 	else if (cmd == 'p')
-		if (pm_power_off)
-			pm_power_off();
+		do_kernel_power_off();
 }
 
 static int cpu_cmd(void)
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index e80d9ff..267e025 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -263,13 +263,9 @@ void machine_power_off(void)
 		 */
 		console_unblank();
 	_machine_power_off();
-}
 
-/*
- * Dummy power off function.
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL_GPL(pm_power_off);
+	do_kernel_power_off();
+}
 
 static int __init early_parse_mem(char *p)
 {
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index a1519ad3..b76ea67 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -29,9 +29,6 @@
 #include <linux/pm.h>
 #include <linux/rcupdate.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 /* If or when software machine-restart is implemented, add code here. */
 void machine_restart(char *command) {}
 
@@ -39,7 +36,10 @@ void machine_restart(char *command) {}
 void machine_halt(void) {}
 
 /* If or when software machine-power-off is implemented, add code here. */
-void machine_power_off(void) {}
+void machine_power_off(void)
+{
+	do_kernel_power_off();
+}
 
 void ret_from_fork(void);
 void ret_from_kernel_thread(void);
diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c
index 04afe5b..065de12 100644
--- a/arch/sh/kernel/reboot.c
+++ b/arch/sh/kernel/reboot.c
@@ -11,9 +11,6 @@
 #include <asm/tlbflush.h>
 #include <asm/traps.h>
 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 #ifdef CONFIG_SUPERH32
 static void watchdog_trigger_immediate(void)
 {
@@ -51,8 +48,7 @@ static void native_machine_shutdown(void)
 
 static void native_machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 }
 
 static void native_machine_halt(void)
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 50e7b62..cb8148a 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -48,14 +48,6 @@
  */
 void (*sparc_idle)(void);
 
-/* 
- * Power-off handler instantiation for pm.h compliance
- * This is done via auxio, but could be used as a fallback
- * handler when auxio is not present-- unused for now...
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 /*
  * sysctl - toggle power-off restriction for serial console 
  * systems in machine_power_off()
@@ -112,6 +104,8 @@ void machine_power_off(void)
 		sbus_writeb(power_register, auxio_power_register);
 	}
 
+	do_kernel_power_off();
+
 	machine_halt();
 }
 
diff --git a/arch/sparc/kernel/reboot.c b/arch/sparc/kernel/reboot.c
index eba7d91..3c0bb03 100644
--- a/arch/sparc/kernel/reboot.c
+++ b/arch/sparc/kernel/reboot.c
@@ -16,17 +16,13 @@
  */
 int scons_pwroff = 1;
 
-/* This isn't actually used, it exists merely to satisfy the
- * reference in kernel/sys.c
- */
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_power_off(void)
 {
 	if (strcmp(of_console_device->type, "serial") || scons_pwroff)
 		prom_halt_power_off();
 
+	do_kernel_power_off();
+
 	prom_halt();
 }
 
diff --git a/arch/tile/kernel/reboot.c b/arch/tile/kernel/reboot.c
index 6c5d2c0..8ff4a7f 100644
--- a/arch/tile/kernel/reboot.c
+++ b/arch/tile/kernel/reboot.c
@@ -36,6 +36,9 @@ void machine_power_off(void)
 {
 	arch_local_irq_disable_all();
 	smp_send_stop();
+
+	do_kernel_power_off();
+
 	hv_power_off();
 }
 
@@ -45,7 +48,3 @@ void machine_restart(char *cmd)
 	smp_send_stop();
 	hv_restart((HV_VirtAddr) "vmlinux", (HV_VirtAddr) cmd);
 }
-
-/* No interesting distinction to be made here. */
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index ced8903..a82ef28 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -11,8 +11,6 @@
 #include <os.h>
 #include <skas.h>
 
-void (*pm_power_off)(void);
-
 static void kill_off_processes(void)
 {
 	if (proc_mm)
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index b008e99..9490dd5 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -56,16 +56,9 @@ void machine_halt(void)
 	gpio_set_value(GPO_SOFT_OFF, 0);
 }
 
-/*
- * Function pointers to optional machine specific functions
- */
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
 void machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	machine_halt();
 }
 
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 17962e6..5c09e28 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -30,12 +30,6 @@
 #include <asm/x86_init.h>
 #include <asm/efi.h>
 
-/*
- * Power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 static const struct desc_ptr no_idt = {};
 
 /*
@@ -647,11 +641,12 @@ static void native_machine_halt(void)
 
 static void native_machine_power_off(void)
 {
-	if (pm_power_off) {
+	if (have_kernel_power_off()) {
 		if (!reboot_force)
 			machine_shutdown();
-		pm_power_off();
+		do_kernel_power_off();
 	}
+
 	/* A fallback in case there is no PM info available */
 	tboot_shutdown(TB_SHUTDOWN_HALT);
 }
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index fac5e4f..bc08998 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1320,8 +1320,7 @@ static void xen_machine_halt(void)
 
 static void xen_machine_power_off(void)
 {
-	if (pm_power_off)
-		pm_power_off();
+	do_kernel_power_off();
 	xen_reboot(SHUTDOWN_poweroff);
 }
 
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 1c85323..c487296 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -49,10 +49,6 @@ extern void ret_from_kernel_thread(void);
 
 struct task_struct *current_set[NR_CPUS] = {&init_task, };
 
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
-
 #if XTENSA_HAVE_COPROCESSORS
 
 void coprocessor_release_all(struct thread_info *ti)
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index ef31b77..f10cf92 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -95,8 +95,7 @@ static void process_shutdown(void)
 		/* send kill signal */
 		if (kill_cad_pid(SIGINT, 1)) {
 			/* just in case killing init process failed */
-			if (pm_power_off)
-				pm_power_off();
+			kernel_power_off();
 		}
 	}
 }
diff --git a/kernel/power/power_off_handler.c b/kernel/power/power_off_handler.c
index c19e72b..d80a337 100644
--- a/kernel/power/power_off_handler.c
+++ b/kernel/power/power_off_handler.c
@@ -23,6 +23,12 @@
 #include <linux/types.h>
 
 /*
+ * If set, calling this function will power off the system immediately.
+ */
+void (*pm_power_off)(void);
+EXPORT_SYMBOL(pm_power_off);
+
+/*
  * List of handlers for kernel code which wants to be called
  * to power off the system.
  */
@@ -291,6 +297,9 @@ void do_kernel_power_off(void)
 	 * that risk.
 	 */
 
+	if (pm_power_off)
+		pm_power_off();
+
 	p = rcu_dereference_raw(power_off_handler_list);
 	while (p) {
 		next_p = rcu_dereference_raw(p->next);
diff --git a/kernel/reboot.c b/kernel/reboot.c
index 5925f5a..d87d921 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c
@@ -306,9 +306,9 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd,
 		return ret;
 
 	/* Instead of trying to make the power_off code look like
-	 * halt when pm_power_off is not set do it the easy way.
+	 * halt when no power-off handler exists do it the easy way.
 	 */
-	if ((cmd == LINUX_REBOOT_CMD_POWER_OFF) && !pm_power_off)
+	if (cmd == LINUX_REBOOT_CMD_POWER_OFF && !have_kernel_power_off())
 		cmd = LINUX_REBOOT_CMD_HALT;
 
 	mutex_lock(&reboot_mutex);
-- 
1.9.1


From - Thu Nov 08 21:10:55 2018
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From: Alex <lausgans@gmail.com>
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Subject: Re: STI text console for ATI FireGL cards?
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Thomas Bogendoerfer <tsbogend <at> alpha.franken.de> writes:

> 
> On Thu, Oct 31, 2013 at 10:26:00PM +0100, Helge Deller wrote:
> > Does the ATI FireGL cards (in e.g. a C8000) have a STI ROM?
> 
> I wonder how many times I need to write that. They don't have STI ROMs.
> The C8000 PDC must have an x86 emulator, which is used for POSTing
> VGA cards. 
> 
> I've successfully installed normal Nvidia and AMD cards (both PCI and
> AGP cards). For me radeonfb is working as console, but without any
> acceleration (ring test failure problem). 

Had you tried to use Nvidia or other non-AMD card as framebuffer? How about 
Xorg?
Thanks

> 
> Thomas.
> 



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Subject: [PATCH -next 0/2] seq: Convert seq_puts and seq_putc to return void
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These are error prone, so return void adn use seq_has_overflowed instead

Joe Perches (2):
  seq_puts: Convert to return void and convert uses too.
  seq_putc: Convert to return void and convert uses too.

 drivers/char/ipmi/ipmi_msghandler.c                |  4 +-
 drivers/parisc/ccio-dma.c                          |  7 +-
 drivers/regulator/dbx500-prcmu.c                   | 21 ++----
 drivers/usb/gadget/udc/goku_udc.c                  | 81 +++++++++++-----------
 drivers/watchdog/bcm_kona_wdt.c                    | 43 +++++++-----
 fs/seq_file.c                                      | 26 +++----
 include/linux/seq_file.h                           |  4 +-
 ipc/util.c                                         |  6 +-
 .../netfilter/nf_conntrack_l3proto_ipv4_compat.c   |  4 +-
 net/netfilter/nf_conntrack_expect.c                |  4 +-
 10 files changed, 105 insertions(+), 95 deletions(-)

-- 
2.1.2

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From - Thu Nov 08 21:10:55 2018
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Using the return value of seq_puts is error-prone, so
make it return void instead.

Use seq_has_overflowed where appropriate instead of the
old return value.

Signed-off-by: Joe Perches <joe-6d6DIl74uiNBDgjK7y7TUQ@public.gmane.org>
---
 drivers/parisc/ccio-dma.c         |  7 ++--
 drivers/regulator/dbx500-prcmu.c  | 21 ++++------
 drivers/usb/gadget/udc/goku_udc.c | 81 ++++++++++++++++++++-------------------
 drivers/watchdog/bcm_kona_wdt.c   | 43 ++++++++++++---------
 fs/seq_file.c                     | 15 ++++----
 include/linux/seq_file.h          |  2 +-
 ipc/util.c                        |  6 ++-
 7 files changed, 89 insertions(+), 86 deletions(-)

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 8b490d7..c40cc98 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1101,7 +1101,6 @@ static const struct file_operations ccio_proc_info_fops = {
 
 static int ccio_proc_bitmap_info(struct seq_file *m, void *p)
 {
-	int len = 0;
 	struct ioc *ioc = ioc_list;
 
 	while (ioc != NULL) {
@@ -1110,11 +1109,11 @@ static int ccio_proc_bitmap_info(struct seq_file *m, void *p)
 
 		for (j = 0; j < (ioc->res_size / sizeof(u32)); j++) {
 			if ((j & 7) == 0)
-				len += seq_puts(m, "\n   ");
-			len += seq_printf(m, "%08x", *res_ptr);
+				seq_puts(m, "\n   ");
+			seq_printf(m, "%08x", *res_ptr);
 			res_ptr++;
 		}
-		len += seq_puts(m, "\n\n");
+		seq_puts(m, "\n\n");
 		ioc = ioc->next;
 		break; /* XXX - remove me */
 	}
diff --git a/drivers/regulator/dbx500-prcmu.c b/drivers/regulator/dbx500-prcmu.c
index 2d16b9f..b778ca9 100644
--- a/drivers/regulator/dbx500-prcmu.c
+++ b/drivers/regulator/dbx500-prcmu.c
@@ -129,14 +129,8 @@ static int ux500_regulator_status_print(struct seq_file *s, void *p)
 	int i;
 
 	/* print dump header */
-	err = seq_puts(s, "ux500-regulator status:\n");
-	if (err < 0)
-		dev_err(dev, "seq_puts overflow\n");
-
-	err = seq_printf(s, "%31s : %8s : %8s\n", "current",
-		"before", "after");
-	if (err < 0)
-		dev_err(dev, "seq_printf overflow\n");
+	seq_puts(s, "ux500-regulator status:\n");
+	seq_printf(s, "%31s : %8s : %8s\n", "current", "before", "after");
 
 	for (i = 0; i < rdebug.num_regulators; i++) {
 		struct dbx500_regulator_info *info;
@@ -144,12 +138,11 @@ static int ux500_regulator_status_print(struct seq_file *s, void *p)
 		info = &rdebug.regulator_array[i];
 
 		/* print status */
-		err = seq_printf(s, "%20s : %8s : %8s : %8s\n", info->desc.name,
-			info->is_enabled ? "enabled" : "disabled",
-			rdebug.state_before_suspend[i] ? "enabled" : "disabled",
-			rdebug.state_after_suspend[i] ? "enabled" : "disabled");
-		if (err < 0)
-			dev_err(dev, "seq_printf overflow\n");
+		seq_printf(s, "%20s : %8s : %8s : %8s\n",
+			   info->desc.name,
+			   info->is_enabled ? "enabled" : "disabled",
+			   rdebug.state_before_suspend[i] ? "enabled" : "disabled",
+			   rdebug.state_after_suspend[i] ? "enabled" : "disabled");
 	}
 
 	return 0;
diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c
index 5b9176e..c16b4d9 100644
--- a/drivers/usb/gadget/udc/goku_udc.c
+++ b/drivers/usb/gadget/udc/goku_udc.c
@@ -1135,44 +1135,47 @@ static int udc_proc_read(struct seq_file *m, void *v)
 			continue;
 
 		tmp = readl(ep->reg_status);
-		if (seq_printf(m,
-			"%s %s max %u %s, irqs %lu, "
-			"status %02x (%s) " FOURBITS "\n",
-			ep->ep.name,
-			ep->is_in ? "in" : "out",
-			ep->ep.maxpacket,
-			ep->dma ? "dma" : "pio",
-			ep->irqs,
-			tmp, ({ char *s;
-			switch (tmp & EPxSTATUS_EP_MASK) {
-			case EPxSTATUS_EP_READY:
-				s = "ready"; break;
-			case EPxSTATUS_EP_DATAIN:
-				s = "packet"; break;
-			case EPxSTATUS_EP_FULL:
-				s = "full"; break;
-			case EPxSTATUS_EP_TX_ERR:	// host will retry
-				s = "tx_err"; break;
-			case EPxSTATUS_EP_RX_ERR:
-				s = "rx_err"; break;
-			case EPxSTATUS_EP_BUSY:		/* ep0 only */
-				s = "busy"; break;
-			case EPxSTATUS_EP_STALL:
-				s = "stall"; break;
-			case EPxSTATUS_EP_INVALID:	// these "can't happen"
-				s = "invalid"; break;
-			default:
-				s = "?"; break;
-			} s; }),
-			(tmp & EPxSTATUS_TOGGLE) ? "data1" : "data0",
-			(tmp & EPxSTATUS_SUSPEND) ? " suspend" : "",
-			(tmp & EPxSTATUS_FIFO_DISABLE) ? " disable" : "",
-			(tmp & EPxSTATUS_STAGE_ERROR) ? " ep0stat" : ""
-			) < 0)
+		seq_printf(m, "%s %s max %u %s, irqs %lu, status %02x (%s) " FOURBITS "\n",
+			   ep->ep.name,
+			   ep->is_in ? "in" : "out",
+			   ep->ep.maxpacket,
+			   ep->dma ? "dma" : "pio",
+			   ep->irqs,
+			   tmp,
+			   ({
+				char *s;
+				switch (tmp & EPxSTATUS_EP_MASK) {
+				case EPxSTATUS_EP_READY:
+					s = "ready"; break;
+				case EPxSTATUS_EP_DATAIN:
+					s = "packet"; break;
+				case EPxSTATUS_EP_FULL:
+					s = "full"; break;
+				case EPxSTATUS_EP_TX_ERR:  /* host will retry */
+					s = "tx_err"; break;
+				case EPxSTATUS_EP_RX_ERR:
+					s = "rx_err"; break;
+				case EPxSTATUS_EP_BUSY:    /* ep0 only */
+					s = "busy"; break;
+				case EPxSTATUS_EP_STALL:
+					s = "stall"; break;
+				case EPxSTATUS_EP_INVALID: /* "can't happen" */
+					s = "invalid"; break;
+				default:
+					s = "?"; break;
+				}
+				s;
+			   }),
+			   (tmp & EPxSTATUS_TOGGLE) ? "data1" : "data0",
+			   (tmp & EPxSTATUS_SUSPEND) ? " suspend" : "",
+			   (tmp & EPxSTATUS_FIFO_DISABLE) ? " disable" : "",
+			   (tmp & EPxSTATUS_STAGE_ERROR) ? " ep0stat" : "");
+		if (seq_has_overflowed(m) < 0)
 			goto done;
 
 		if (list_empty(&ep->queue)) {
-			if (seq_puts(m, "\t(nothing queued)\n") < 0)
+			seq_puts(m, "\t(nothing queued)\n");
+			if (seq_has_overflowed(m))
 				goto done;
 			continue;
 		}
@@ -1187,10 +1190,10 @@ static int udc_proc_read(struct seq_file *m, void *v)
 			} else
 				tmp = req->req.actual;
 
-			if (seq_printf(m,
-				"\treq %p len %u/%u buf %p\n",
-				&req->req, tmp, req->req.length,
-				req->req.buf) < 0)
+			seq_printf(m, "\treq %p len %u/%u buf %p\n",
+				   &req->req, tmp, req->req.length,
+				   req->req.buf);
+			if (seq_has_overflowed(m))
 				goto done;
 		}
 	}
diff --git a/drivers/watchdog/bcm_kona_wdt.c b/drivers/watchdog/bcm_kona_wdt.c
index 4e37db3..0e5ec3c 100644
--- a/drivers/watchdog/bcm_kona_wdt.c
+++ b/drivers/watchdog/bcm_kona_wdt.c
@@ -102,34 +102,39 @@ static int bcm_kona_wdt_dbg_show(struct seq_file *s, void *data)
 	int ctl_val, cur_val, ret;
 	unsigned long flags;
 	struct bcm_kona_wdt *wdt = s->private;
+	int ctl, cur, ctl_sec, cur_sec, res;
 
-	if (!wdt)
-		return seq_puts(s, "No device pointer\n");
-
+	if (!wdt) {
+		seq_puts(s, "No device pointer\n");
+		return 0;
+	}
 	spin_lock_irqsave(&wdt->lock, flags);
 	ctl_val = secure_register_read(wdt, SECWDOG_CTRL_REG);
 	cur_val = secure_register_read(wdt, SECWDOG_COUNT_REG);
 	spin_unlock_irqrestore(&wdt->lock, flags);
 
 	if (ctl_val < 0 || cur_val < 0) {
-		ret = seq_puts(s, "Error accessing hardware\n");
-	} else {
-		int ctl, cur, ctl_sec, cur_sec, res;
-
-		ctl = ctl_val & SECWDOG_COUNT_MASK;
-		res = (ctl_val & SECWDOG_RES_MASK) >> SECWDOG_CLKS_SHIFT;
-		cur = cur_val & SECWDOG_COUNT_MASK;
-		ctl_sec = TICKS_TO_SECS(ctl, wdt);
-		cur_sec = TICKS_TO_SECS(cur, wdt);
-		ret = seq_printf(s, "Resolution: %d / %d\n"
-				"Control: %d s / %d (%#x) ticks\n"
-				"Current: %d s / %d (%#x) ticks\n"
-				"Busy count: %lu\n", res,
-				wdt->resolution, ctl_sec, ctl, ctl, cur_sec,
-				cur, cur, wdt->busy_count);
+		seq_puts(s, "Error accessing hardware\n");
+		return 0;
 	}
 
-	return ret;
+	ctl = ctl_val & SECWDOG_COUNT_MASK;
+	res = (ctl_val & SECWDOG_RES_MASK) >> SECWDOG_CLKS_SHIFT;
+	cur = cur_val & SECWDOG_COUNT_MASK;
+	ctl_sec = TICKS_TO_SECS(ctl, wdt);
+	cur_sec = TICKS_TO_SECS(cur, wdt);
+	seq_printf(s,
+		   "Resolution: %d / %d\n"
+		   "Control: %d s / %d (%#x) ticks\n"
+		   "Current: %d s / %d (%#x) ticks\n"
+		   "Busy count: %lu\n",
+		   res, wdt->resolution,
+		   ctl_sec, ctl, ctl,
+		   cur_sec, cur, cur,
+		   wdt->busy_count);
+	}
+
+	return 0;
 }
 
 static int bcm_kona_dbg_open(struct inode *inode, struct file *file)
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 353948b..e6be05a 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -683,16 +683,17 @@ int seq_putc(struct seq_file *m, char c)
 }
 EXPORT_SYMBOL(seq_putc);
 
-int seq_puts(struct seq_file *m, const char *s)
+void seq_puts(struct seq_file *m, const char *s)
 {
 	int len = strlen(s);
-	if (m->count + len < m->size) {
-		memcpy(m->buf + m->count, s, len);
-		m->count += len;
-		return 0;
+
+	if (m->count + len >= m->size) {
+		seq_set_overflow(m);
+		return;
 	}
-	seq_set_overflow(m);
-	return -1;
+
+	memcpy(m->buf + m->count, s, len);
+	m->count += len;
 }
 EXPORT_SYMBOL(seq_puts);
 
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index cf6a9da..9b02cb6 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -116,7 +116,7 @@ loff_t seq_lseek(struct file *, loff_t, int);
 int seq_release(struct inode *, struct file *);
 int seq_escape(struct seq_file *, const char *, const char *);
 int seq_putc(struct seq_file *m, char c);
-int seq_puts(struct seq_file *m, const char *s);
+void seq_puts(struct seq_file *m, const char *s);
 int seq_write(struct seq_file *seq, const void *data, size_t len);
 
 __printf(2, 3) int seq_printf(struct seq_file *, const char *, ...);
diff --git a/ipc/util.c b/ipc/util.c
index 106bed0..4f726b7 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -837,8 +837,10 @@ static int sysvipc_proc_show(struct seq_file *s, void *it)
 	struct ipc_proc_iter *iter = s->private;
 	struct ipc_proc_iface *iface = iter->iface;
 
-	if (it == SEQ_START_TOKEN)
-		return seq_puts(s, iface->header);
+	if (it == SEQ_START_TOKEN) {
+		seq_puts(s, iface->header);
+		return seq_has_overflowed(s);
+	}
 
 	return iface->show(s, it);
 }
-- 
2.1.2

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From - Thu Nov 08 21:10:55 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Use compat layer for msgctl, shmat, shmctl and
 semtimedop syscalls
Date: Mon, 10 Nov 2014 21:46:18 +0100
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To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Switch over the msgctl, shmat, shmctl and semtimedop syscalls to use the compat
layer.  The problem was found with the debian procenv package, which called
	shmctl(0, SHM_INFO, &info);
in which the shmctl syscall then overwrote parts of the surrounding areas on
the stack on which the info variable was stored and thus lead to a segfault
later on.

Additionally fix the definition of struct shminfo64 to use unsigned longs like
the other architectures. This has no impact on userspace since we only have a
32bit userspace up to now.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: John David Anglin <dave.anglin@bell.net>
Cc: <stable@vger.kernel.org> # v3.10+

diff --git a/arch/parisc/include/uapi/asm/shmbuf.h b/arch/parisc/include/uapi/asm/shmbuf.h
index 0a3eada..f395cde 100644
--- a/arch/parisc/include/uapi/asm/shmbuf.h
+++ b/arch/parisc/include/uapi/asm/shmbuf.h
@@ -36,23 +36,16 @@ struct shmid64_ds {
 	unsigned int		__unused2;
 };
 
-#ifdef CONFIG_64BIT
-/* The 'unsigned int' (formerly 'unsigned long') data types below will
- * ensure that a 32-bit app calling shmctl(*,IPC_INFO,*) will work on
- * a wide kernel, but if some of these values are meant to contain pointers
- * they may need to be 'long long' instead. -PB XXX FIXME
- */
-#endif
 struct shminfo64 {
-	unsigned int	shmmax;
-	unsigned int	shmmin;
-	unsigned int	shmmni;
-	unsigned int	shmseg;
-	unsigned int	shmall;
-	unsigned int	__unused1;
-	unsigned int	__unused2;
-	unsigned int	__unused3;
-	unsigned int	__unused4;
+	unsigned long	shmmax;
+	unsigned long	shmmin;
+	unsigned long	shmmni;
+	unsigned long	shmseg;
+	unsigned long	shmall;
+	unsigned long	__unused1;
+	unsigned long	__unused2;
+	unsigned long	__unused3;
+	unsigned long	__unused4;
 };
 
 #endif /* _PARISC_SHMBUF_H */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 84c5d3a..3cd1c43 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -286,11 +286,11 @@
 	ENTRY_COMP(msgsnd)
 	ENTRY_COMP(msgrcv)
 	ENTRY_SAME(msgget)		/* 190 */
-	ENTRY_SAME(msgctl)
-	ENTRY_SAME(shmat)
+	ENTRY_COMP(msgctl)
+	ENTRY_COMP(shmat)
 	ENTRY_SAME(shmdt)
 	ENTRY_SAME(shmget)
-	ENTRY_SAME(shmctl)		/* 195 */
+	ENTRY_COMP(shmctl)		/* 195 */
 	ENTRY_SAME(ni_syscall)		/* streams1 */
 	ENTRY_SAME(ni_syscall)		/* streams2 */
 	ENTRY_SAME(lstat64)
@@ -323,7 +323,7 @@
 	ENTRY_SAME(epoll_ctl)		/* 225 */
 	ENTRY_SAME(epoll_wait)
  	ENTRY_SAME(remap_file_pages)
-	ENTRY_SAME(semtimedop)
+	ENTRY_COMP(semtimedop)
 	ENTRY_COMP(mq_open)
 	ENTRY_SAME(mq_unlink)		/* 230 */
 	ENTRY_COMP(mq_timedsend)
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Drop CONFIG_64BIT usage in userspace exported headers
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The gcc compiler provide the predefined __LP64__ macro. Use that
instead. 

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/bitsperlong.h b/arch/parisc/include/uapi/asm/bitsperlong.h
index 75196b4..ebde3830 100644
--- a/arch/parisc/include/uapi/asm/bitsperlong.h
+++ b/arch/parisc/include/uapi/asm/bitsperlong.h
@@ -1,13 +1,7 @@
 #ifndef __ASM_PARISC_BITSPERLONG_H
 #define __ASM_PARISC_BITSPERLONG_H
 
-/*
- * using CONFIG_* outside of __KERNEL__ is wrong,
- * __LP64__ was also removed from headers, so what
- * is the right approach on parisc?
- *	-arnd
- */
-#if (defined(__KERNEL__) && defined(CONFIG_64BIT)) || defined (__LP64__)
+#if defined (__LP64__)
 #define __BITS_PER_LONG 64
 #define SHIFT_PER_LONG 6
 #else
diff --git a/arch/parisc/include/uapi/asm/msgbuf.h b/arch/parisc/include/uapi/asm/msgbuf.h
index fe88f26..3421389 100644
--- a/arch/parisc/include/uapi/asm/msgbuf.h
+++ b/arch/parisc/include/uapi/asm/msgbuf.h
@@ -1,6 +1,8 @@
 #ifndef _PARISC_MSGBUF_H
 #define _PARISC_MSGBUF_H
 
+#include <asm/bitsperlong.h>
+
 /* 
  * The msqid64_ds structure for parisc architecture, copied from sparc.
  * Note extra padding because this structure is passed back and forth
@@ -13,15 +15,15 @@
 
 struct msqid64_ds {
 	struct ipc64_perm msg_perm;
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG != 64
 	unsigned int   __pad1;
 #endif
 	__kernel_time_t msg_stime;	/* last msgsnd time */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG != 64
 	unsigned int   __pad2;
 #endif
 	__kernel_time_t msg_rtime;	/* last msgrcv time */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG != 64
 	unsigned int   __pad3;
 #endif
 	__kernel_time_t msg_ctime;	/* last change time */
diff --git a/arch/parisc/include/uapi/asm/sembuf.h b/arch/parisc/include/uapi/asm/sembuf.h
index 1e59ffd..f01d89e 100644
--- a/arch/parisc/include/uapi/asm/sembuf.h
+++ b/arch/parisc/include/uapi/asm/sembuf.h
@@ -1,6 +1,8 @@
 #ifndef _PARISC_SEMBUF_H
 #define _PARISC_SEMBUF_H
 
+#include <asm/bitsperlong.h>
+
 /* 
  * The semid64_ds structure for parisc architecture.
  * Note extra padding because this structure is passed back and forth
@@ -13,11 +15,11 @@
 
 struct semid64_ds {
 	struct ipc64_perm sem_perm;		/* permissions .. see ipc.h */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG != 64
 	unsigned int	__pad1;
 #endif
 	__kernel_time_t	sem_otime;		/* last semop time */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG != 64
 	unsigned int	__pad2;
 #endif
 	__kernel_time_t	sem_ctime;		/* last change time */
diff --git a/arch/parisc/include/uapi/asm/shmbuf.h b/arch/parisc/include/uapi/asm/shmbuf.h
index 0a3eada..8496c38 100644
--- a/arch/parisc/include/uapi/asm/shmbuf.h
+++ b/arch/parisc/include/uapi/asm/shmbuf.h
@@ -1,6 +1,8 @@
 #ifndef _PARISC_SHMBUF_H
 #define _PARISC_SHMBUF_H
 
+#include <asm/bitsperlong.h>
+
 /* 
  * The shmid64_ds structure for parisc architecture.
  * Note extra padding because this structure is passed back and forth
@@ -13,19 +15,19 @@
 
 struct shmid64_ds {
 	struct ipc64_perm	shm_perm;	/* operation perms */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG != 64
 	unsigned int		__pad1;
 #endif
 	__kernel_time_t		shm_atime;	/* last attach time */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG != 64
 	unsigned int		__pad2;
 #endif
 	__kernel_time_t		shm_dtime;	/* last detach time */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG != 64
 	unsigned int		__pad3;
 #endif
 	__kernel_time_t		shm_ctime;	/* last change time */
-#ifndef CONFIG_64BIT
+#if __BITS_PER_LONG != 64
 	unsigned int		__pad4;
 #endif
 	size_t			shm_segsz;	/* size of segment (bytes) */
diff --git a/arch/parisc/include/uapi/asm/signal.h b/arch/parisc/include/uapi/asm/signal.h
index 10df707..e26043b 100644
--- a/arch/parisc/include/uapi/asm/signal.h
+++ b/arch/parisc/include/uapi/asm/signal.h
@@ -85,7 +85,7 @@
 struct siginfo;
 
 /* Type of a signal handler.  */
-#ifdef CONFIG_64BIT
+#if defined(__LP64__)
 /* function pointers on 64-bit parisc are pointers to little structs and the
  * compiler doesn't support code which changes or tests the address of
  * the function in the little struct.  This is really ugly -PB
--
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From - Thu Nov 08 21:10:56 2018
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From: Mark Brown <broonie@kernel.org>
Newsgroups: gmane.linux.file-systems,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.usb.general
Subject: Re: [PATCH -next 1/2] seq_puts: Convert to return void and convert
 uses too.
Date: Tue, 11 Nov 2014 00:32:36 +0000
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On Mon, Nov 10, 2014 at 10:58:56AM -0800, Joe Perches wrote:
> Using the return value of seq_puts is error-prone, so
> make it return void instead.

Acked-by: Mark Brown <broonie@kernel.org>

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From - Thu Nov 08 21:10:56 2018
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From: Petr Mladek <pmladek@suse.cz>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.usb.general,gmane.linux.file-systems
Subject: Re: [PATCH -next 1/2] seq_puts: Convert to return void and convert
 uses too.
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To: Joe Perches <joe@perches.com>
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On Mon 2014-11-10 10:58:56, Joe Perches wrote:
> diff --git a/ipc/util.c b/ipc/util.c
> index 106bed0..4f726b7 100644
> --- a/ipc/util.c
> +++ b/ipc/util.c
> @@ -837,8 +837,10 @@ static int sysvipc_proc_show(struct seq_file *s, void *it)
>  	struct ipc_proc_iter *iter = s->private;
>  	struct ipc_proc_iface *iface = iter->iface;
>  
> -	if (it == SEQ_START_TOKEN)
> -		return seq_puts(s, iface->header);
> +	if (it == SEQ_START_TOKEN) {
> +		seq_puts(s, iface->header);
> +		return seq_has_overflowed(s);

It should return 0. The overflow is detected by traverse() that is
called from seq_read(). If the overflow happens, the size of the
buffer is increased and show() is called again.

> +	}
>  
>  	return iface->show(s, it);

This should stay as is. It seems that the show() function might also
return negative value in case of some other failure. See the error
handling of "error = m->op->show(m, p);" in traverse() in fs/seq_file.c


The rest of the patch looks fine.

Best Regards,
Petr
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.serial,gmane.linux.ports.parisc
Subject: serial console problem with kernel 3.18.0-rc4
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While testing kernel 3.18-rc4 I'm facing a problem with serial console.

I'm seeing at bootup this message:
[   17.724000] console [ttyS0] disabled
after that it's just hanging.

It seems as if ttyS0 is somehow being reprogrammed which then disturbs the
serial ports on the receiver side (in my case a HP PCI Diva Serial [GSP] Multiport UART).
Any idea what changed between 3.17 and 3.18 which have caused this behavior ?
Full log below.

Helge

serial driver: drivers/tty/serial/8250/8250_pci.c

PCI info:
00:04.1 Serial controller: Hewlett-Packard Company Diva Serial [GSP] Multiport UART (rev 03) (prog-if 02 [16550])
         Subsystem: Hewlett-Packard Company Device 1283
         Flags: medium devsel, IRQ 70
         Memory at ffffffff80000000 (32-bit, non-prefetchable) [size=4K]
         I/O ports at 0040 [size=64]
         Capabilities: [48] Power Management version 2
         Kernel driver in use: serial


dmesg after bootup:

[   17.708000] Serial: 8250/16550 driver, 8 ports, IRQ sharing enabled
[   17.724000] serial 0000:00:04.1: enabling device (0142 -> 0143)
[   17.724000] console [ttyS0] disabled
[   17.880000] serial 0000:00:04.1: ttyS0 at MMIO 0xffffffff80000000 (irq = 70, base_baud = 115200) is a 16550A
[   17.996000] console [ttyS0] enabled
[   38.888000] INFO: rcu_sched detected stalls on CPUs/tasks: { 3} (detected by 1, t=5252 jiffies, g=-290, c=-291, q=2)
[   38.888000] Task dump for CPU 3:
[   38.888000] swapper/0       R  running task        0     1      0 0x00000004
[   38.888000] Backtrace:
[   38.888000]  [<0000000040200848>] vprintk_emit+0x570/0x5f8
[   38.888000]  [<0000000040200bdc>] printk+0x64/0x78
[   38.888000]  [<0000000040201fc0>] register_console+0x438/0x550
[   38.888000]  [<0000000040688bb8>] uart_add_one_port+0x400/0x5d0
[   38.888000]  [<000000004068e6d4>] serial8250_register_8250_port+0x3e4/0x448
[   38.888000]  [<0000000040695f44>] pciserial_init_ports+0x22c/0x2c8
[   38.888000]  [<0000000040696628>] pciserial_init_one+0x250/0x2e0
[   38.888000]  [<00000000405f3880>] pci_device_probe+0xb0/0x150
[   38.888000]  [<00000000406a8244>] driver_probe_device+0x204/0x570
[   38.888000]  [<00000000406a8728>] __driver_attach+0xe0/0x158
[   38.888000]  [<00000000406a4558>] bus_for_each_dev+0xd0/0x128
[   38.888000]  [<00000000406a76f8>] driver_attach+0x48/0x60
[   38.888000]  [<00000000406a6de8>] bus_add_driver+0x268/0x460
[   38.888000]  [<00000000406a915c>] driver_register+0x124/0x1d0
[   38.888000]  [<00000000405f336c>] __pci_register_driver+0x64/0x78
[   38.888000]  [<00000000401375e4>] serial_pci_driver_init+0x44/0x58

[   59.084000] timer_interrupt(CPU 3): delayed! cycles 85EBC4C7D rem 2BAF83  next/now 2765C08677/276594D6F4
[   59.140000] bootconsole [ttyB0] disabled
[   59.144000] serial 0000:00:04.1: ttyS1 at MMIO 0xffffffff80000008 (irq = 70, base_baud = 115200) is a 16450
[   59.164000] serial 0000:00:04.1: ttyS2 at MMIO 0xffffffff80000010 (irq = 70, base_baud = 115200) is a 16550A
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From - Thu Nov 08 21:10:56 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc architecture patches for v3.18
Date: Sat, 15 Nov 2014 23:00:48 +0100
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>
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Hi Linus,

please pull some patches for the parisc architecture for kernel 3.18 from 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.18-2

Changes include:
- wire up the bpf syscall
- Remove CONFIG_64BIT usage from some userspace-exported header files
- Use compat functions for msgctl, shmat, shmctl and semtimedop syscalls 

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (4):
      parisc: Wire up bpf syscall
      parisc: Use BUILD_BUG() instead of undefined functions
      parisc: Use compat layer for msgctl, shmat, shmctl and semtimedop syscalls
      parisc: Avoid using CONFIG_64BIT in userspace exported headers

 arch/parisc/include/asm/uaccess.h          | 19 +++++++---------
 arch/parisc/include/uapi/asm/bitsperlong.h |  8 +------
 arch/parisc/include/uapi/asm/msgbuf.h      |  8 ++++---
 arch/parisc/include/uapi/asm/sembuf.h      |  6 +++--
 arch/parisc/include/uapi/asm/shmbuf.h      | 35 +++++++++++++-----------------
 arch/parisc/include/uapi/asm/signal.h      |  2 +-
 arch/parisc/include/uapi/asm/unistd.h      |  3 ++-
 arch/parisc/kernel/syscall_table.S         |  9 ++++----
 8 files changed, 41 insertions(+), 49 deletions(-)
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From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.comp.emulators.xen.devel,gmane.linux.kernel.iommu,gmane.comp.video.dri.devel,gmane.linux.ports.mips.general,gmane.linux.ports.arm.kernel
Subject: [RFC] add a struct page* parameter to dma_map_ops.unmap_page
Date: Mon, 17 Nov 2014 14:11:51 +0000
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Cc: David Vrabel <david.vrabel@citrix.com>,
	Ian Campbell <Ian.Campbell@citrix.com>,
	<konrad.wilk@oracle.com>, <linux-kernel@vger.kernel.org>,
	<xen-devel@lists.xensource.com>, <torvalds@linux-foundation.org>,
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	<ralf@linux-mips.org>, <linux-arm-kernel@lists.infradead.org>,
	<dwmw2@infradead.org>
To: <gregkh@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/6210>

Hi all,
I am writing this email to ask for your advice.

On architectures where dma addresses are different from physical
addresses, it can be difficult to retrieve the physical address of a
page from its dma address.

Specifically this is the case for Xen on arm and arm64 but I think that
other architectures might have the same issue.

Knowing the physical address is necessary to be able to issue any
required cache maintenance operations when unmap_page,
sync_single_for_cpu and sync_single_for_device are called.

Adding a struct page* parameter to unmap_page, sync_single_for_cpu and
sync_single_for_device would make Linux dma handling on Xen on arm and
arm64 much easier and quicker.

I think that other drivers have similar problems, such as the Intel
IOMMU driver having to call find_iova and walking down an rbtree to get
the physical address in its implementation of unmap_page.

Callers have the struct page* in their hands already from the previous
map_page call so it shouldn't be an issue for them.  A problem does
exist however: there are about 280 callers of dma_unmap_page and
pci_unmap_page. We have even more callers of the dma_sync_single_for_*
functions.



Is such a change even conceivable? How would one go about it?

I think that Xen would not be the only one to gain from it, but I would
like to have a confirmation from others: given the magnitude of the
changes involved I would actually prefer to avoid them unless multiple
drivers/archs/subsystems could really benefit from them.

Cheers,

Stefano


diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index d5d3881..158a765 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -31,8 +31,9 @@ struct dma_map_ops {
 			       unsigned long offset, size_t size,
 			       enum dma_data_direction dir,
 			       struct dma_attrs *attrs);
-	void (*unmap_page)(struct device *dev, dma_addr_t dma_handle,
-			   size_t size, enum dma_data_direction dir,
+	void (*unmap_page)(struct device *dev, struct page *page,
+			   dma_addr_t dma_handle, size_t size,
+			   enum dma_data_direction dir,
 			   struct dma_attrs *attrs);
 	int (*map_sg)(struct device *dev, struct scatterlist *sg,
 		      int nents, enum dma_data_direction dir,
@@ -41,10 +42,10 @@ struct dma_map_ops {
 			 struct scatterlist *sg, int nents,
 			 enum dma_data_direction dir,
 			 struct dma_attrs *attrs);
-	void (*sync_single_for_cpu)(struct device *dev,
+	void (*sync_single_for_cpu)(struct device *dev, struct page *page,
 				    dma_addr_t dma_handle, size_t size,
 				    enum dma_data_direction dir);
-	void (*sync_single_for_device)(struct device *dev,
+	void (*sync_single_for_device)(struct device *dev, struct page *page,
 				       dma_addr_t dma_handle, size_t size,
 				       enum dma_data_direction dir);
 	void (*sync_sg_for_cpu)(struct device *dev,
--
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From - Thu Nov 08 21:10:56 2018
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From: David Vrabel <david.vrabel@citrix.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.mips.general,gmane.comp.video.dri.devel,gmane.comp.emulators.xen.devel,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.kernel.iommu
Subject: Re: [Xen-devel] [RFC] add a struct page* parameter to dma_map_ops.unmap_page
Date: Mon, 17 Nov 2014 14:43:46 +0000
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	<linux@arm.linux.org.uk>, <vinod.koul@intel.com>, <deller@gmx.de>,
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To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
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On 17/11/14 14:11, Stefano Stabellini wrote:
> Hi all,
> I am writing this email to ask for your advice.
> 
> On architectures where dma addresses are different from physical
> addresses, it can be difficult to retrieve the physical address of a
> page from its dma address.
> 
> Specifically this is the case for Xen on arm and arm64 but I think that
> other architectures might have the same issue.
> 
> Knowing the physical address is necessary to be able to issue any
> required cache maintenance operations when unmap_page,
> sync_single_for_cpu and sync_single_for_device are called.
> 
> Adding a struct page* parameter to unmap_page, sync_single_for_cpu and
> sync_single_for_device would make Linux dma handling on Xen on arm and
> arm64 much easier and quicker.

Using an opaque handle instead of struct page * would be more beneficial
for the Intel IOMMU driver.  e.g.,

typedef dma_addr_t dma_handle_t;

dma_handle_t dma_map_single(struct device *dev,
                            void *va, size_t size,
                            enum dma_data_direction dir);
void dma_unmap_single(struct device *dev,
                      dma_handle_t handle, size_t size,
                      enum dma_data_direction dir);

etc.

Drivers would then use:

dma_addr_t dma_addr(dma_handle_t handle);

To obtain the bus address from the handle.

> I think that other drivers have similar problems, such as the Intel
> IOMMU driver having to call find_iova and walking down an rbtree to get
> the physical address in its implementation of unmap_page.
> 
> Callers have the struct page* in their hands already from the previous
> map_page call so it shouldn't be an issue for them.  A problem does
> exist however: there are about 280 callers of dma_unmap_page and
> pci_unmap_page. We have even more callers of the dma_sync_single_for_*
> functions.

You will also need to fix dma_unmap_single() and pci_unmap_single()
(another 1000+ callers).

You may need to consider a parallel set of map/unmap API calls that
return/accept a handle, and then converting drivers one-by-one as
required, instead of trying to convert every single driver at once.

David
--
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From - Thu Nov 08 21:10:56 2018
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From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.comp.emulators.xen.devel,gmane.linux.kernel.iommu,gmane.comp.video.dri.devel,gmane.linux.ports.mips.general,gmane.linux.ports.arm.kernel
Subject: Re: [RFC] add a struct page* parameter to dma_map_ops.unmap_page
Date: Fri, 21 Nov 2014 11:48:33 +0000
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Cc: <gregkh@linuxfoundation.org>,
	David Vrabel <david.vrabel@citrix.com>,
	Ian Campbell <Ian.Campbell@citrix.com>,
	<konrad.wilk@oracle.com>, <linux-kernel@vger.kernel.org>,
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To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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On Mon, 17 Nov 2014, Stefano Stabellini wrote:
> Hi all,
> I am writing this email to ask for your advice.
> 
> On architectures where dma addresses are different from physical
> addresses, it can be difficult to retrieve the physical address of a
> page from its dma address.
> 
> Specifically this is the case for Xen on arm and arm64 but I think that
> other architectures might have the same issue.
> 
> Knowing the physical address is necessary to be able to issue any
> required cache maintenance operations when unmap_page,
> sync_single_for_cpu and sync_single_for_device are called.
> 
> Adding a struct page* parameter to unmap_page, sync_single_for_cpu and
> sync_single_for_device would make Linux dma handling on Xen on arm and
> arm64 much easier and quicker.
> 
> I think that other drivers have similar problems, such as the Intel
> IOMMU driver having to call find_iova and walking down an rbtree to get
> the physical address in its implementation of unmap_page.
> 
> Callers have the struct page* in their hands already from the previous
> map_page call so it shouldn't be an issue for them.  A problem does
> exist however: there are about 280 callers of dma_unmap_page and
> pci_unmap_page. We have even more callers of the dma_sync_single_for_*
> functions.
> 
> 
> 
> Is such a change even conceivable? How would one go about it?
> 
> I think that Xen would not be the only one to gain from it, but I would
> like to have a confirmation from others: given the magnitude of the
> changes involved I would actually prefer to avoid them unless multiple
> drivers/archs/subsystems could really benefit from them.

Given the lack of interest from the community, I am going to drop this
idea.




> Cheers,
> 
> Stefano
> 
> 
> diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
> index d5d3881..158a765 100644
> --- a/include/linux/dma-mapping.h
> +++ b/include/linux/dma-mapping.h
> @@ -31,8 +31,9 @@ struct dma_map_ops {
>  			       unsigned long offset, size_t size,
>  			       enum dma_data_direction dir,
>  			       struct dma_attrs *attrs);
> -	void (*unmap_page)(struct device *dev, dma_addr_t dma_handle,
> -			   size_t size, enum dma_data_direction dir,
> +	void (*unmap_page)(struct device *dev, struct page *page,
> +			   dma_addr_t dma_handle, size_t size,
> +			   enum dma_data_direction dir,
>  			   struct dma_attrs *attrs);
>  	int (*map_sg)(struct device *dev, struct scatterlist *sg,
>  		      int nents, enum dma_data_direction dir,
> @@ -41,10 +42,10 @@ struct dma_map_ops {
>  			 struct scatterlist *sg, int nents,
>  			 enum dma_data_direction dir,
>  			 struct dma_attrs *attrs);
> -	void (*sync_single_for_cpu)(struct device *dev,
> +	void (*sync_single_for_cpu)(struct device *dev, struct page *page,
>  				    dma_addr_t dma_handle, size_t size,
>  				    enum dma_data_direction dir);
> -	void (*sync_single_for_device)(struct device *dev,
> +	void (*sync_single_for_device)(struct device *dev, struct page *page,
>  				       dma_addr_t dma_handle, size_t size,
>  				       enum dma_data_direction dir);
>  	void (*sync_sg_for_cpu)(struct device *dev,
> 
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Subject: Re: [RFC] add a struct page* parameter to dma_map_ops.unmap_page
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On Fri, Nov 21 2014 at 03:48:33 AM, Stefano Stabellini <stefano.stabellini-mvvWK6WmYclDPfheJLI6IQ@public.gmane.org> wrote:
> On Mon, 17 Nov 2014, Stefano Stabellini wrote:
>> Hi all,
>> I am writing this email to ask for your advice.
>> 
>> On architectures where dma addresses are different from physical
>> addresses, it can be difficult to retrieve the physical address of a
>> page from its dma address.
>> 
>> Specifically this is the case for Xen on arm and arm64 but I think that
>> other architectures might have the same issue.
>> 
>> Knowing the physical address is necessary to be able to issue any
>> required cache maintenance operations when unmap_page,
>> sync_single_for_cpu and sync_single_for_device are called.
>> 
>> Adding a struct page* parameter to unmap_page, sync_single_for_cpu and
>> sync_single_for_device would make Linux dma handling on Xen on arm and
>> arm64 much easier and quicker.
>> 
>> I think that other drivers have similar problems, such as the Intel
>> IOMMU driver having to call find_iova and walking down an rbtree to get
>> the physical address in its implementation of unmap_page.
>> 
>> Callers have the struct page* in their hands already from the previous
>> map_page call so it shouldn't be an issue for them.  A problem does
>> exist however: there are about 280 callers of dma_unmap_page and
>> pci_unmap_page. We have even more callers of the dma_sync_single_for_*
>> functions.
>> 
>> 
>> 
>> Is such a change even conceivable? How would one go about it?
>> 
>> I think that Xen would not be the only one to gain from it, but I would
>> like to have a confirmation from others: given the magnitude of the
>> changes involved I would actually prefer to avoid them unless multiple
>> drivers/archs/subsystems could really benefit from them.
>
> Given the lack of interest from the community, I am going to drop this
> idea.

Actually it sounds like the right API design to me.  As a bonus it
should help performance a bit as well.  For example, the current
implementations of dma_sync_single_for_{cpu,device} and dma_unmap_page
on ARM while using the IOMMU mapper
(arm_iommu_sync_single_for_{cpu,device}, arm_iommu_unmap_page) all call
iommu_iova_to_phys which generally results in a page table walk or a
hardware register write/poll/read.

The problem, as you mentioned, is that there are a ton of callers of the
existing APIs.  I think David Vrabel had a good suggestion for dealing
with this:

On Mon, Nov 17 2014 at 06:43:46 AM, David Vrabel <david.vrabel-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org> wrote:
> You may need to consider a parallel set of map/unmap API calls that
> return/accept a handle, and then converting drivers one-by-one as
> required, instead of trying to convert every single driver at once.

However, I'm not sure whether the costs of having a parallel set of APIs
outweigh the benefits of a cleaner API and a slight performance boost...
But I hope the idea isn't completely abandoned without some profiling or
other evidence of its benefits (e.g. patches showing how drivers could
be simplified with the new APIs).


-Mitch

-- 
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

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From: bame@verinet.com
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Subject: [parisc-linux] missing docs
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I copied most of the parisc docs which are referenced from
http://www.thepuffingroup.com/parisc/documentation.html
over to http://puffin.external.hp.com/docs/ since
dtf.external.hp.com hasn't been very helpful lately.

	-Paul Bame


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From: Jason Eckhardt <jle@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] boot loader
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On Thu, 21 Oct 1999, Paul Bame wrote:

> 
> Here's a sketch of a new (really, mostly stolen from other places
> like the existing boot_code code) boot loader for parisc.  It's
> aimed at solving some of our current problems (like linking ramdisks
> into the kernel) and being good enough to live on for a while,
> and be easily replaced if it starts to smell bad.
> 
 ...
> 
> BTW the current contender for the name, instead of hilo, is palo
> for PArisc LOader.  It is also a reminder of of Palo Alto
> which is where HP began.
> 
> Comments?

  My only comments are "keep it small and simple" and don't spend a lot of time
  on it. This was my "philosophy" when I first wrote the bootloader -- after
  all, it is just a bootloader. The whole idea was to spend a day or two
  writing it, so we could get to the _interesting_ stuff -- the kernel. In
  fact, the only reason I wrote a bootloader (instead of lifting the one from,
  say, mklinux) was to have a compact and simple one. 

  However, I'm all for cleaning it up a bit. The original code was actually
  quite nice and well-commented, especially considering the haste in which it
  was written. It has since degraded a shade after some hacking by others
  (as well as gaining functionality -- ELF loading, for example -- by the way,
  does that actually work?). 
  As far as naming goes, PALO, HILO, doesn't really matter to me although PALO
  is as cute as any. I like my original, verbose and iconoclastic name
  "PARISC/Linux Bootstrap v0.1" :).

  If you're really fired up, help out on the kernel. I'm confident Alex and
  Chris can find something that needs to be written! (I'm looking for time
  myself -- between more than full-time work at Cygnus, grad school at Rice,
  and 3 kids, I'm having trouble helping out much these days).

  Have fun, jason.


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From: Jason Eckhardt <jle@cygnus.com>
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On Thu, 21 Oct 1999, Frank Rowand wrote:

>   read it.  To decode the procedure call I had to know where to find
>   documentation for page zero, know what PDCE_PROC is, figure out what PDC
>   procedure was being called.
> This is where my newbie status becomes apparent. 

   Yes. 

> excuse any foot in mouth here.  I looked at the Puffin web page and didn't
> notice anything about the process of making sure that code that is submitted
> has some minimal level of quality.  Is it just a matter of the community
> applying peer pressure?
> 

  We could institute ECN's (engineering change notices, for those of you
  who've never worked for HP) if that would help :)...

  But seriously, this is an important concern. Normally, there would be
  a "maintainer" who would review code for accuracy, cleanliness, quality,
  etc. before allowing it to be checked in. That person was me at one time,
  but due to tremendous time pressures, I gave up on that.

  jason.
 


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot messages from C3000 console
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On Thu, 21 Oct 1999, Frank Rowand wrote:
> Ok, tirade mode off.  This is where my newbie status becomes apparent.  Please
> excuse any foot in mouth here.  I looked at the Puffin web page and didn't
> notice anything about the process of making sure that code that is submitted
> has some minimal level of quality.  Is it just a matter of the community
> applying peer pressure?

In fact, it's *ALL* about the community applying pressure.

If the code in head.S is a bit rough, remember that it was just about the
first PA-RISC assembler that Helge or Philipp had ever written, so do keep
that in mind.  Also, at the start of the project, there was a very
conscious effort to only be concerned with 1.1 code.  It doesn't surprise
me in the least that it's not 2.0 compliant.

I agree that the code is unreadable though;  I've simply passed it off on
not being able to understand parisc assembler well enough.

We'd all appreciate it if you could commit appropriate changes to make the
code clearer.

- Alex


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From: "Simen Timian Thoresen" <simentt@dolphinics.no>
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Subject: [parisc-linux] rbooting an 735?
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Is anybody rbooting an 735?
I've replaced my exceedingly noisy Micropolis disk, and replaced it 
with a 2.1G seagate thing which, altho so far working nicely, 
refuses to boot. So, to try new 'lin-ux' kernels I have to use rboot.

As far as I can see, the rbootd server is configured correctly, and is 
communicating with the 735. Unfortunately, the 735 seems not to 
request an image name, and the server responds with 'denied' in 
the syslog.

So - Is there anybody out there with a 735 that /does/ request an 
image? 

-Simen
--
Simen Thoresen, Beowulf-cleaner and random artist.

Er det ikke rart?
The gnu RART-project on valinor.dolphinics.no/~simentt/rart


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> The 700 has an ancient IO architecture that we don't have any
> documentation on, so it's not high on the list of priorities.

But it is possible to get the docs from HP?

> However, if
> someone has patches to support it, we'd be happy to apply them.
> As for cross compiling... we're forced to use HPUX because we don't have a
> reasonable and functioning cross linker. More on that later.

Is it possible to compile with linux, and do only the linking on the hp?
(It isn't very fast.. :)  Can I link with HPUX 9.03? (probably not)
10.30? (It doesn't run 11.x)

-- 
Magne stlyngen <magne@spacetec.no>
                <magne@skybert.org>


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] rbooting an 735?
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"Simen Timian Thoresen" wrote:
> Is anybody rbooting an 735?
> I've replaced my exceedingly noisy Micropolis disk, and replaced it 
> with a 2.1G seagate thing which, altho so far working nicely, 
> refuses to boot.

Many of the older HP-UX systems can NOT boot from a "whole disk"
which is greater than 2GB. The IODC on older boxes has problems
when the byte offset into the disk goes "negative" (exceeds what
can be represented by "sign int"). And the "whole disk" layout puts
some of the LIF boot info beyond the reach of IODC.  Setting up the
boot disk with LVM changes the disk layout such that it works.
I know LVM is required to boot from 4GB (or greater sized) disks too.
You might try LVM.

This is another reason parisc-linux boot loader needs to support LVM.

I don't know what the rbootd problem is...

grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Subject: Re: [parisc-linux] rbooting an 735?
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= Is anybody rbooting an 735?
= [...]
= So - Is there anybody out there with a 735 that /does/ request an 
= image? 

Mine didn't work either.  It's *possible* there's newer firmware
which would help.

	-Paul Bame


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Subject: Re: [parisc-linux] So you wanna get to a prompt, eh?
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Magne =?iso-8859-1?Q?=D8stlyngen?= wrote:
> > The 700 has an ancient IO architecture that we don't have any
> > documentation on, so it's not high on the list of priorities.
> 
> But it is possible to get the docs from HP?

Yes. If HP can find them and verify it doesn't contain someone else's
Intellectual Property (which isn't published already).
HP sees releasing old docs as a low priority since it doesn't
generate revenue. IMHO, the only way this is going to happen is
if some HP person does this in their spare time and then gets the
right signatures/approval.

I've done some of this but don't care about boxes older than 715's
or servers older than K or D class.

> > However, if
> > someone has patches to support it, we'd be happy to apply them.
> > As for cross compiling... we're forced to use HPUX because we don't have a
> > reasonable and functioning cross linker. More on that later.
> 
> Is it possible to compile with linux, and do only the linking on the hp?

This sounds possible but doesn't seem reasonable.

> (It isn't very fast.. :)  Can I link with HPUX 9.03? (probably not)
> 10.30? (It doesn't run 11.x)

Use 10.20. It should run on your 710. Don't use 10.30 as it was never
intended for distribution on workstations and certainly doesn't have
the support which WSY has poured into 10.20.

grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot messages from C3000 console
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To: parisc-linux@thepuffingroup.com,
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Am Fri, 22 Oct 1999 schrieb Alex deVries:
> On Thu, 21 Oct 1999, Frank Rowand wrote:
> > Ok, tirade mode off.  This is where my newbie status becomes apparent.  Please
> > excuse any foot in mouth here.  I looked at the Puffin web page and didn't
> > notice anything about the process of making sure that code that is submitted
> > has some minimal level of quality.  Is it just a matter of the community
> > applying peer pressure?
> 
> In fact, it's *ALL* about the community applying pressure.
> 
> If the code in head.S is a bit rough, remember that it was just about the
> first PA-RISC assembler that Helge or Philipp had ever written, so do keep
> that in mind.  Also, at the start of the project, there was a very
> conscious effort to only be concerned with 1.1 code.  It doesn't surprise
> me in the least that it's not 2.0 compliant.
> 
> I agree that the code is unreadable though;  I've simply passed it off on
> not being able to understand parisc assembler well enough.
> 
> We'd all appreciate it if you could commit appropriate changes to make the
> code clearer.
> 
> - Alex

Thanks Alex,

Yes, we all know that the boot-loader really needs a complete clean-up, and as
it looks like Im the maintainer of the bootloader. 

Its really funny to see people from HP talking to the list and saying somthing
about code-quality, but only as a little reminder:
When I wrote the bootloader I had no documentation on bootloading from HP at
all, no knowledge of parisc and got it only working with trial & error methods
in day and night-sessions. More, its first goal was to get at least a kernel
booted so that the real kernel-development could start. (See my messages in the
commits) The end of this all was this really ugly bootloader with many until
now unused enhancements (ELF-loader and ramdisk-support) which can be easily
removed.

More I think there are currently MUCH MORE IMPORTANT things to be fixed in the
kernel than beautifying a (mostly) working bootloader which will be completely
rewritten in the future. When time has come and we have clean code to read
filesystems like LIF and HFS, then this can be easily integrated into a
completely rewritten PALO (PArisc-LOader).

But currently I have nearly no time at all (as many others on this list), so if
anyone has time to fix things, beautify the code and send me patches or
enhancements I really would like to integrate them at once.
SO: PLEASE dont talk about quality of source code (we all know, that the
bootloader is bad!) , just send patches !!!!!

NB: It seems, that many people wants to talk about this over and over again.
All this was already said some weeks ago.....

Helge Deller.

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Dies ist eine mehrteilige Nachricht im MIME-Format.
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Hello all !

Maybe someone with a working BOOTP or RBOOTD could please give me some help/advice,
how to set up the network-booting for an HP 715/64 and an iA32-SuSE-6.0-Distribution
?

Any help would be great !

I already tried both possibilities and have had until now no success (Telnet and
Network is working!) !
I also changed the "boot-path" !
What do I have to enter in /etc/services,  a.s.o ?
I thought, I entered all OK.

Does anybody have booted an 715/64 already ?

Thanks,
Helge Deller.


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] rbooting an 735?
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> = Is anybody rbooting an 735?

I am not rbooting but recent kernels that I have built up to
yesterday hang with no console output after the ipl boot message
I couldn't define CONFIG_IODC_CONSOLE with yesterday's sources
because the procedure iodc_con_init is not defined anywhere.
There also needs to be definitions for inb, outb, etc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] So you wanna get to a prompt, eh?
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> > (It isn't very fast.. :)  Can I link with HPUX 9.03? (probably not)
> > 10.30? (It doesn't run 11.x)
> 
> Use 10.20. It should run on your 710. Don't use 10.30 as it was never
> intended for distribution on workstations and certainly doesn't have
> the support which WSY has poured into 10.20.

I won't describe the woes I have had upgrading my 735 to 10.20
but I have had all kinds of problems with disk timeouts and unrecoverable
LPMCs with 10.20 on my 735.  These problems are only now getting
worked out of 10.20 (see recent patches to wsio driver, etc).
My 735 has about a dozen scsi devices on threee buses, so it
seriously stresses the IO architecture.

The machine ran for years under 9.01 with experiencing any problems
of this kind.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] Boot messages from C3000 console
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Alex deVries wrote:
...
> If the code in head.S is a bit rough, remember that it was just about the
> first PA-RISC assembler that Helge or Philipp had ever written, so do keep
> that in mind.  Also, at the start of the project, there was a very
> conscious effort to only be concerned with 1.1 code.  It doesn't surprise
> me in the least that it's not 2.0 compliant.
> 
> I agree that the code is unreadable though;  I've simply passed it off on
> not being able to understand parisc assembler well enough.

Alex,
I think you are walking around Frank's point:
	It doesn't matter which language the code is written in.
	The code should be readable by a wide audience.
	(Understanding will still be limited to a subset)

(Corallary: Because it's assembler, comments and #define's are required
for clarity and there were none.)

> We'd all appreciate it if you could commit appropriate changes to make the
> code clearer.

That's what I suggested earlier to him. My sense is the "Open Source Way"
(similar to the "HP Way") is to do, not to complain.

[ soapbox on ]
I agree with Frank's gripe too...IMHO, it would be really bad thing for
parisc-linux if he not to contribute.  My point is contributors should
remember out of 6 billion other people on the planet, a few capable ones
will choose to look at the code because they want to add functionality or
fix "bugs". And they can change their mind after the first look.

And worse would be if only-slightly-less-capable folks contribute stuff which
breaks various platforms (we'll get there). And even with well commented,
supportable code, it could take a while to sort out which code is "broken"
and which platforms it's needed on. I would prefer if someone like Frank
just did it right the first time around...but if I can't have that I'd
at least like him to help look at problems in the successive passes.
[ soapbox off ]


grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Frank Rowand <frank_rowand@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot messages from C3000 console
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Helge Deller wrote:
> 
> Am Fri, 22 Oct 1999 schrieb Alex deVries:
> > On Thu, 21 Oct 1999, Frank Rowand wrote:
> > > Ok, tirade mode off.  This is where my newbie status becomes apparent.  Please
> > > excuse any foot in mouth here.  I looked at the Puffin web page and didn't
> > > notice anything about the process of making sure that code that is submitted
> > > has some minimal level of quality.  Is it just a matter of the community
> > > applying peer pressure?
> >
> > In fact, it's *ALL* about the community applying pressure.
> >
> > If the code in head.S is a bit rough, remember that it was just about the
> > first PA-RISC assembler that Helge or Philipp had ever written, so do keep
> > that in mind.  Also, at the start of the project, there was a very
> > conscious effort to only be concerned with 1.1 code.  It doesn't surprise
> > me in the least that it's not 2.0 compliant.
> >
> > I agree that the code is unreadable though;  I've simply passed it off on
> > not being able to understand parisc assembler well enough.
> >
> > We'd all appreciate it if you could commit appropriate changes to make the
> > code clearer.
> >
> > - Alex
> 
> Thanks Alex,
> 
> Yes, we all know that the boot-loader really needs a complete clean-up, and as
> it looks like Im the maintainer of the bootloader.
> 
> Its really funny to see people from HP talking to the list and saying somthing
> about code-quality, but only as a little reminder:
> When I wrote the bootloader I had no documentation on bootloading from HP at
> all, no knowledge of parisc and got it only working with trial & error methods
> in day and night-sessions. More, its first goal was to get at least a kernel
> booted so that the real kernel-development could start. (See my messages in the

<stuff deleted>

First, thanks to all for the gentle replies.  I like this community!!

Alex, I guess I wasn't clear enough about what my issue was.  I wasn't complaining
about the actual code (I try to avoid that, as long as code is mostly correct
(works)).  My concern was that I, with twelve years experience with PA-RISC
(including four different OSs - MPE, NextStep, HP-RT, and HP-UX), had to go to
external documentation to read what is trivial code (a PDC call) when a
one line comment would have made it obvious that the code was calling
PDC_BLOCK_TLB().  For me, just annoying - for someone who might be missing one
or two of the bits of knowledge, potentially a multi-hour sidetrack to
understand some trivial code.  I want to encourage people to make the code
easily readable so I don't have to waste a lot of time when my help is requested
to debug or contribute code.

Helge, I wasn't complaining about the boot-loader, I think you are mixing two
different threads together.  And I'm not complaining about the algorithms,
the instructions coded, correctness of code, or anything like that.  I'm just
saying that the sequence that I had to read in head.S to figure out the
cause of the HPMC on the C3000 needed at least a comment to make it readable
without having to know about and consult external documents.  (And Grant made
a good point that using defines instead of numbers can also increase
readability significantly).

And yes, I suspect that adding the comment to the code will be my first
submission to parisc linux (how embaressing to submit a comment before
submitting any code!).

Thanks all,

Frank Rowand


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Re:

> The LIF tools won't accept lowercase filenames.
> Why care?  Because you could possibly boot HP-UX and use the LIF tools 
> to manipulate the vmlinuz file, for example.
...
> Note: my lifcp test was on 10.20
 
I also tested on HP-UX 11.00, with the same result.
  
-- 
Stan Sieler                                          sieler@allegro.com
                                         http://www.allegro.com/sieler/


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From: Philipp Rumpf <prumpf@suse.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot messages from C3000 console
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> I'm cutting this from another discussion, don't feel like re-typing it.
> The file we are talking about (giving line number references) is head.S.
> We calculated the the offending offset was at label "blargh" plus a bit.
> 
> The following discussion talks about how we get to the code section
> where the HPMC occurs.  Earlier, we talked about hard-coding magic
> addresses, which are machine specific (that's in the macro "debug",
> which is what actually caused the HPMC -- line 162).

The debug macro should indeed have been empty (and is, now).  Sorry for that.

> Then I get a little incensed at the coding style here.... (editing out other
> people's responses to my tirade)
> 
> 
> > This is a **bogus** way to write code.  Comments should be required!!!!!! 
>   Is there any way to encourage that?

there is a comment on top of the section of code in question

	/* setup the BTLB.  XXX: This assumes a unified BTLB */"

which I agree isn't as verbose as it could be but it seems not to hard to me
to get to "we do a PDC_BLOCK_TLB call now" from "setup the BTLB".

> > But I'm *extremely* serious about that.  This code is unmaintainable in it's
>   current form.  It's going to be miserable adding 2.0 support to something
>   like that.

indeed it is, which is one of the reasons I proposed to wrap the virtually-mapped
kernel in a physically-mapped som binary which could do these pdc calls in C (and
would remove the need for most of head.S)

> > it's important to anyone who would like to pick up head.S and be able to
>   read it.  To decode the procedure call I had to know where to find
>   documentation for page zero, know what PDCE_PROC is, figure out what PDC
>   procedure was being called.
> > For me, it was about 45 seconds instead of the two seconds it would take to
>   read a comment.
> > For someone who doesn't have my background, it could be hours.

I cannot exactly remember whether this was based on gcc-generated code, but I
am pretty sure it was, which might explain why it doesn't use macros (of course,
it would have been a good idea to include the C code as comment in this case).

	Philipp Rumpf


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From: Philipp Rumpf <prumpf@suse.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot messages from C3000 console
Date: Sat, 23 Oct 1999 00:16:59 +0200
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Cc: parisc-linux@thepuffingroup.com,
        Alex deVries <adevries@thepuffingroup.com>, frowand@cup.hp.com,
        Paul Bame <bame@debian.fc.hp.com>
To: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:6231

> Yes, we all know that the boot-loader really needs a complete clean-up, and as
> it looks like Im the maintainer of the bootloader. 

This isn't bootloader code though.


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From: Paul Bame <bame@debian.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] hack to use HPUX boot loader
Date: Fri, 22 Oct 1999 17:34:56 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:6232


Ok prumpf, here's the hack I suggested.  I didn't check it into CVS
anywhere (maybe arch/parisc/boot?).  It appears to work quite well
even without any changes to head.S

For those not privy to our conversation, this little tool munges
your SOM vmlinux file so that it can be loaded by the normal hpux
boot loader.  I'm not suggesting this is a great long-term strategy,
but it might make life easier for someone.

	-Paul Bame


#!/bin/sh
# This is a shell archive (produced by GNU sharutils 4.2).
# To extract the files from this archive, save it to some FILE, remove
# everything before the `!/bin/sh' line above, then type `sh FILE'.
#
# Made on 1999-10-22 17:33 MDT by <bame@fc.hp.com>.
# Source directory was `/users/bame/puffin/parisc/linux/arch/parisc/boot'.
#
# Existing files will *not* be overwritten unless `-c' is specified.
#
# This shar contains:
# length mode       name
# ------ ---------- ------------------------------------------
#   2197 -rw-r--r-- som_relocate.c
#   5425 -rw-r--r-- copy-of-som.h
#
save_IFS="${IFS}"
IFS="${IFS}:"
gettext_dir=FAILED
locale_dir=FAILED
first_param="$1"
for dir in $PATH
do
  if test "$gettext_dir" = FAILED && test -f $dir/gettext \
     && ($dir/gettext --version >/dev/null 2>&1)
  then
    set `$dir/gettext --version 2>&1`
    if test "$3" = GNU
    then
      gettext_dir=$dir
    fi
  fi
  if test "$locale_dir" = FAILED && test -f $dir/shar \
     && ($dir/shar --print-text-domain-dir >/dev/null 2>&1)
  then
    locale_dir=`$dir/shar --print-text-domain-dir`
  fi
done
IFS="$save_IFS"
if test "$locale_dir" = FAILED || test "$gettext_dir" = FAILED
then
  echo=echo
else
  TEXTDOMAINDIR=$locale_dir
  export TEXTDOMAINDIR
  TEXTDOMAIN=sharutils
  export TEXTDOMAIN
  echo="$gettext_dir/gettext -s"
fi
touch -am 1231235999 $$.touch >/dev/null 2>&1
if test ! -f 1231235999 && test -f $$.touch; then
  shar_touch=touch
else
  shar_touch=:
  echo
  $echo 'WARNING: not restoring timestamps.  Consider getting and'
  $echo "installing GNU \`touch', distributed in GNU File Utilities..."
  echo
fi
rm -f 1231235999 $$.touch
#
if mkdir _sh24082; then
  $echo 'x -' 'creating lock directory'
else
  $echo 'failed to create lock directory'
  exit 1
fi
# ============= som_relocate.c ==============
if test -f 'som_relocate.c' && test "$first_param" != -c; then
  $echo 'x -' SKIPPING 'som_relocate.c' '(file already exists)'
else
shar: Saving som_relocate.c (text)
  $echo 'x -' extracting 'som_relocate.c' '(text)'
  sed 's/^X//' << 'SHAR_EOF' > 'som_relocate.c' &&
#include <stdio.h>
#include <sys/time.h>
#include <assert.h>
#include "copy-of-som.h"
X
/* You'll need "copy-of-som.h" to compile this.  If you don't have it,
X * grab a copy from include/linux/som.h and remove the #include directive.
X *
X * Compile with gcc -o som_relocate som_relocate.c
X *
X * Run this on your parisc SOM kernel (vmlinux) and then you can use
X * the hpux boot loader to load it.  Here's what it looks like
X * when interacting with the boot ROM:
X *
X * ISL>					# the normal HP-UX boot prompt
X *
X * ISL> hpux /boot/vmlinux		# Use your path to vmlinux here
X *
X *
X * You can run this over and over without ill effect on the same
X * kernel image.
X *
X * Enjoy,
X *
X *				-Paul Bame
X */
X
/* relocate address to where it'll live physically */
#define RELOCATE(x)		x &= ~0xC0000000
X
int
main(int argc, char *argv[])
{
X    FILE *f;
X    struct som_hdr sh;
X    struct som_exec_auxhdr aux;
X
X    if (argc != 2)
X    {
X	fprintf(stderr, "Usage: %s <SOM-vmlinux>\n", argv[0]);
X	return 2;
X    }
X
X    if ((f = fopen(argv[1], "rb+")) == NULL)
X    {
X	perror(argv[1]);
X	return 3;
X    }
X
X    /* read the SOM header */
X    fread(&sh, sizeof sh, 1, f);
X
X    /* hack it */
X    printf("entry_space 0x%08x\n", sh.entry_space);
X    printf("entry_subspace 0x%08x\n", sh.entry_subspace);
X    printf("RELOCATE entry_offset 0x%08x\n", sh.entry_offset);	/********/
X    RELOCATE(sh.entry_offset);
X    printf("aux_header_location 0x%08x\n", sh.aux_header_location);
X    printf("aux_header_size %d\n", sh.aux_header_size);
X
X    /* write it */
X    rewind(f);
X    fwrite(&sh, sizeof sh, 1, f);
X
X    /* read the aux header */
X    fseek(f, sh.aux_header_location, SEEK_SET);
X    fread(&aux, sizeof aux, 1, f);
X    printf("RELOCATE aux.exec_tmem 0x%08x\n", aux.exec_tmem);
X    RELOCATE(aux.exec_tmem);
X    printf("aux.exec_tsize %d\n", aux.exec_tsize);
X    printf("RELOCATE aux.exec_dmem 0x%08x\n", aux.exec_dmem);
X    RELOCATE(aux.exec_dmem);
X    printf("aux.exec_dsize %d\n", aux.exec_dsize);
X    printf("RELOCATE aux.exec_entry 0x%08x\n", aux.exec_entry);
X    RELOCATE(aux.exec_entry);
X
X    /* write it */
X    fseek(f, sh.aux_header_location, SEEK_SET);
X    fwrite(&aux, sizeof aux, 1, f);
X
X    fclose(f);
X    return 0;
}
SHAR_EOF
  $shar_touch -am 102217281999 'som_relocate.c' &&
  chmod 0644 'som_relocate.c' ||
  $echo 'restore of' 'som_relocate.c' 'failed'
  if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
  && ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
    md5sum -c << SHAR_EOF >/dev/null 2>&1 \
    || $echo 'som_relocate.c:' 'MD5 check failed'
e5852faf2501dcc23a129c99abd1f7e1  som_relocate.c
SHAR_EOF
  else
    shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'som_relocate.c'`"
    test 2197 -eq "$shar_count" ||
    $echo 'som_relocate.c:' 'original size' '2197,' 'current size' "$shar_count!"
  fi
fi
# ============= copy-of-som.h ==============
if test -f 'copy-of-som.h' && test "$first_param" != -c; then
  $echo 'x -' SKIPPING 'copy-of-som.h' '(file already exists)'
else
shar: Saving copy-of-som.h (text)
  $echo 'x -' extracting 'copy-of-som.h' '(text)'
  sed 's/^X//' << 'SHAR_EOF' > 'copy-of-som.h' &&
#ifndef _LINUX_SOM_H
#define _LINUX_SOM_H
X
/* File format definition for SOM executables / shared libraries */
X
#define SOM_PAGESIZE 4096
X
/* this is the SOM header */
struct som_hdr {
X	short		system_id;		/* magic number - system */
X	short		a_magic;		/* magic number - file type */
X	unsigned int	version_id;		/* versiod ID: YYMMDDHH */
X	struct timespec	file_time;		/* system clock */
X	unsigned int	entry_space;		/* space for entry point */
X	unsigned int	entry_subspace;		/* subspace for entry point */
X	unsigned int	entry_offset;		/* offset of entry point */
X	unsigned int	aux_header_location;	/* auxiliary header location */
X	unsigned int	aux_header_size;	/* auxiliary header size */
X	unsigned int	som_length;		/* length of entire SOM */
X	unsigned int	presumed_dp;		/* compiler's DP value */
X	unsigned int	space_location;		/* space dictionary location */
X	unsigned int	space_total;		/* number of space entries */
X	unsigned int	subspace_location;	/* subspace entries location */
X	unsigned int	subspace_total;		/* number of subspace entries */
X	unsigned int	loader_fixup_location;	/* MPE/iX loader fixup */
X	unsigned int	loader_fixup_total;	/* number of fixup records */
X	unsigned int	space_strings_location;	/* (sub)space names */
X	unsigned int	space_strings_size;	/* size of strings area */
X	unsigned int	init_array_location;	/* reserved */
X	unsigned int	init_array_total;	/* reserved */
X	unsigned int	compiler_location;	/* module dictionary */
X	unsigned int	compiler_total;		/* number of modules */
X	unsigned int	symbol_location;	/* symbol dictionary */
X	unsigned int	symbol_total;		/* number of symbols */
X	unsigned int	fixup_request_location;	/* fixup requests */
X	unsigned int	fixup_request_total;	/* number of fixup requests */
X	unsigned int	symbol_strings_location;/* module & symbol names area */
X	unsigned int	symbol_strings_size;	/* size of strings area */
X	unsigned int	unloadable_sp_location;	/* unloadable spaces location */
X	unsigned int	unloadable_sp_size;	/* size of data */
X	unsigned int	checksum;
};
X
/* values for system_id */
X
#define SOM_SID_PARISC_1_0	0x020b
#define SOM_SID_PARISC_1_1	0x0210
#define SOM_SID_PARISC_2_0	0x0214
X
/* values for a_magic */
X
#define SOM_LIB_EXEC		0x0104
#define SOM_RELOCATABLE		0x0106
#define SOM_EXEC_NONSHARE	0x0107
#define SOM_EXEC_SHARE		0x0108
#define SOM_EXEC_DEMAND		0x010B
#define SOM_LIB_DYN		0x010D
#define SOM_LIB_SHARE		0x010E
#define SOM_LIB_RELOC		0x0619
X
/* values for version_id.  Decimal not hex, yes.  Grr. */
X
#define SOM_ID_OLD		85082112
#define SOM_ID_NEW		87102412
X
struct aux_id {
X	unsigned int	mandatory :1;	/* the linker must understand this */
X	unsigned int	copy	  :1;	/* Must be copied by the linker */
X	unsigned int	append	  :1;	/* Must be merged by the linker */
X	unsigned int	ignore	  :1;	/* Discard section if unknown */
X	unsigned int	reserved  :12;
X	unsigned int	type	  :16;	/* Header type */
X	unsigned int	length;		/* length of _following_ data */
};
X
/* The Exec Auxiliary Header.  Called The HP-UX Header within HP apparently. */
struct som_exec_auxhdr {
X	struct aux_id	som_auxhdr;
X	int		exec_tsize;	/* Text size in bytes */
X	int		exec_tmem;	/* Address to load text at */
X	int		exec_tfile;	/* Location of text in file */
X	int		exec_dsize;	/* Data size in bytes */
X	int		exec_dmem;	/* Address to load data at */
X	int		exec_dfile;	/* Location of data in file */
X	int		exec_bsize;	/* Uninitialised data (bss) */
X	int		exec_entry;	/* Address to start executing */
X	int		exec_flags;	/* loader flags */
X	int		exec_bfill;	/* initialisation value for bss */
};
X
/* Oh, the things people do to avoid casts.  Shame it'll break with gcc's
X * new aliasing rules really.
X */
union name_pt {
X	char *		n_name;
X	unsigned int	n_strx;
};
X
/* The Space Dictionary */
struct space_dictionary_record {
X	union name_pt	name;			/* index to subspace name */
X	unsigned int	is_loadable	:1;	/* loadable */
X	unsigned int	is_defined	:1;	/* defined within file */
X	unsigned int	is_private	:1;	/* not sharable */
X	unsigned int	has_intermediate_code :1; /* contains intermediate code */
X	unsigned int	is_tspecific	:1;	/* thread specific */
X	unsigned int	reserved	:11;	/* for future expansion */
X	unsigned int	sort_key	:8;	/* for linker */
X	unsigned int	reserved2	:8;	/* for future expansion */
X
X	int		space_number;		/* index */
X	int		subspace_index;		/* index into subspace dict */
X	unsigned int	subspace_quantity;	/* number of subspaces */
X	int		loader_fix_index;	/* for loader */
X	unsigned int	loader_fix_quantity;	/* for loader */
X	int		init_pointer_index;	/* data pointer array index */
X	unsigned int	init_pointer_quantity;	/* number of data pointers */
};
X
/* The Subspace Dictionary */
struct subspace_dictionary_record {
X	int		space_index;
X	unsigned int	access_control_bits :7;
X	unsigned int	memory_resident	:1;
X	unsigned int	dup_common	:1;
X	unsigned int	is_common	:1;
X	unsigned int	quadrant	:2;
X	unsigned int	initially_frozen :1;
X	unsigned int	is_first	:1;
X	unsigned int	code_only	:1;
X	unsigned int	sort_key	:8;
X	unsigned int	replicate_init	:1;
X	unsigned int	continuation	:1;
X	unsigned int	is_tspecific	:1;
X	unsigned int	is_comdat	:1;
X	unsigned int	reserved	:4;
X
X	int		file_loc_init_value;
X	unsigned int	initialization_length;
X	unsigned int	subspace_start;
X	unsigned int	subspace_length;
X
X	unsigned int	reserved2	:5;
X	unsigned int	alignment	:27;
X
X	union name_pt	name;
X	int		fixup_request_index;
X	unsigned int	fixup_request_quantity;
};
X
#endif /* _LINUX_SOM_H */
SHAR_EOF
  $shar_touch -am 102217001999 'copy-of-som.h' &&
  chmod 0644 'copy-of-som.h' ||
  $echo 'restore of' 'copy-of-som.h' 'failed'
  if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
  && ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
    md5sum -c << SHAR_EOF >/dev/null 2>&1 \
    || $echo 'copy-of-som.h:' 'MD5 check failed'
55c72739b33cd9ed3da5dce3a68cdfdb  copy-of-som.h
SHAR_EOF
  else
    shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'copy-of-som.h'`"
    test 5425 -eq "$shar_count" ||
    $echo 'copy-of-som.h:' 'original size' '5425,' 'current size' "$shar_count!"
  fi
fi
rm -fr _sh24082
exit 0


From - Thu Nov 08 21:10:57 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Philipp Rumpf <prumpf@suse.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot messages from C3000 console
Date: Sat, 23 Oct 1999 01:42:17 +0200
Lines: 41
Approved: news@gmane.org
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References: <Pine.LNX.4.10.9910212221480.18206-100000@vodka.thepuffingroup.com> <99102217512801.00256@P100> <38109F94.7DA3551A@hp.com>
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Cc: parisc-linux@thepuffingroup.com, Paul Bame <bame@debian.fc.hp.com>
To: frowand@cup.hp.com
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In-Reply-To: <38109F94.7DA3551A@hp.com>; from Frank Rowand on Fri, Oct 22, 1999 at 10:32:04AM -0700
Xref: news.gmane.org gmane.linux.ports.parisc:6233

> one line comment would have made it obvious that the code was calling
> PDC_BLOCK_TLB().  For me, just annoying - for someone who might be missing one

I agree that adding "using PDC_BLOCK_TLB" to the "setup the BTLB" comment might
have been a good idea.

> understand some trivial code.  I want to encourage people to make the code
> easily readable so I don't have to waste a lot of time when my help is requested
> to debug or contribute code.
>
> saying that the sequence that I had to read in head.S to figure out the
> cause of the HPMC on the C3000 needed at least a comment to make it readable

I somehow get the impression what you are suggesting is the author of this
code (i.e. me) wrote this code, left for some weeks and you were forced to fix
this bug.  What I did was to leave for 38 hours.  

Of course it would be nice to have as little code as possible in the tree only
the author understands, and we don't have very much, but I don't think we'll
ever get rid of the last bits of "unreadable" code (in fact, there's enough of
that in the architecture-independent parts to spend a long and busy life
ranting about it).  You found some.

Now what you could have done is comment the code, change the code to use
#defines, yell at the author, yell at the author in public, or start a
discussion on how to avoid ever having any unreadable code in the kernel at
all.

You chose (possibly among other possibilities) to have a discussion.  I am
not sure which effect you intended it to have, but I am pretty sure the effect
it is going to have, if any, is to waste lots of time that otherwise would
have gone into development, both in the discussion itself and in enforcing
any rules that we "agree upon" (i.e. about which one side gets too tired to
argue about).

My impression is we'll save a lot of time by simply yelling at each other
about bad code as long as the number of developers and users is as low as it
currently is and most likely will be within the next 6 months.

	Philipp Rumpf


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From: Philipp Rumpf <prumpf@suse.de>
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Subject: [parisc-linux] Code Readability
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As there already seems to be a discussion going on about this, here's a list
of things I would change in order to save developers time;  this is obviously
biased towards developers who spent some time doing this, not towards those
new to the code.

 - get rid of the cvs $Log$s.  Not only do they tend to get longer than the
code in question, they also seem to be downright boring to me.  The only
information you need in the common case is "who was the last one to modify
this file" which $Id$ does just fine.

 - use #if 0 (or #ifdef SOMETHING) instead of "/*" to comment out sections of
code more than one line long.

 - try to avoid using C++-style "//" line comments, or any comment style except
the usual one, which is
	line; /* line comment */

/*
 * long comment
 * ...
 */

 - if you use #ifdef SOMETHING_DEBUG to conditionally compile sanity checks,
put an #undef SOMETHING_DEBUG or #define SOMETHING_DEBUG at the top of the
file.  If it is a header file, you don't want to run into problems because
#define SOMETHING_DEBUG is in some .c files and not in others.

 - stay with standard linux names.  We're pretty good at that.

 - look at Documentation/CodingStyle once in a while, especially Chapter 4

	Philipp Rumpf

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Markus Doehr wrote:
...
> We have some HP machines around here:
> 
> 	A 9000/715
> 	A 9000/778
> 	B 9000/375
> 
> On moday I'll speak to the admin if I could do some testing in the evening,
> when the machines are not needed any more. Sorry for silly asking, but is
> the 'C160' the only model currently "supported" or will our machines
> probably work too?

The 778 listed is most likely a B132L  - little brother to the C160.
Type "model" at the command line and you should get back something
like:
9000/778/B132L

I'm afraid the 9000/375 is a Motarola based workstation and not PA-RISC.

grant

Grant Grundler
Enterprise Systems Technology Lab
+1.408.447.7253

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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot messages from C3000 console
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This is a multi-part message in MIME format.
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Frank Rowand wrote:

> Helge Deller wrote:
> >
> > Am Fri, 22 Oct 1999 schrieb Alex deVries:
> > > On Thu, 21 Oct 1999, Frank Rowand wrote:
> > > > Ok, tirade mode off.  This is where my newbie status becomes apparent.  Please
> > > > excuse any foot in mouth here.  I looked at the Puffin web page and didn't
> > > > notice anything about the process of making sure that code that is submitted
> > > > has some minimal level of quality.  Is it just a matter of the community
> > > > applying peer pressure?
> > >
> > > In fact, it's *ALL* about the community applying pressure.
> > >
> > > If the code in head.S is a bit rough, remember that it was just about the
> > > first PA-RISC assembler that Helge or Philipp had ever written, so do keep
> > > that in mind.  Also, at the start of the project, there was a very
> > > conscious effort to only be concerned with 1.1 code.  It doesn't surprise
> > > me in the least that it's not 2.0 compliant.
> > >
> > > I agree that the code is unreadable though;  I've simply passed it off on
> > > not being able to understand parisc assembler well enough.
> > >
> > > We'd all appreciate it if you could commit appropriate changes to make the
> > > code clearer.
> > >
> > > - Alex
> >
> > Thanks Alex,
> >
> > Yes, we all know that the boot-loader really needs a complete clean-up, and as
> > it looks like Im the maintainer of the bootloader.
> >
> > Its really funny to see people from HP talking to the list and saying somthing
> > about code-quality, but only as a little reminder:
> > When I wrote the bootloader I had no documentation on bootloading from HP at
> > all, no knowledge of parisc and got it only working with trial & error methods
> > in day and night-sessions. More, its first goal was to get at least a kernel
> > booted so that the real kernel-development could start. (See my messages in the
>
> <stuff deleted>
>
> First, thanks to all for the gentle replies.  I like this community!!
>
> Alex, I guess I wasn't clear enough about what my issue was.  I wasn't complaining
> about the actual code (I try to avoid that, as long as code is mostly correct
> (works)).  My concern was that I, with twelve years experience with PA-RISC
> (including four different OSs - MPE, NextStep, HP-RT, and HP-UX), had to go to
> external documentation to read what is trivial code (a PDC call) when a
> one line comment would have made it obvious that the code was calling
> PDC_BLOCK_TLB().  For me, just annoying - for someone who might be missing one
> or two of the bits of knowledge, potentially a multi-hour sidetrack to
> understand some trivial code.  I want to encourage people to make the code
> easily readable so I don't have to waste a lot of time when my help is requested
> to debug or contribute code.
>
> Helge, I wasn't complaining about the boot-loader, I think you are mixing two
> different threads together.  And I'm not complaining about the algorithms,
> the instructions coded, correctness of code, or anything like that.  I'm just
> saying that the sequence that I had to read in head.S to figure out the
> cause of the HPMC on the C3000 needed at least a comment to make it readable
> without having to know about and consult external documents.  (And Grant made
> a good point that using defines instead of numbers can also increase
> readability significantly).
>
> And yes, I suspect that adding the comment to the code will be my first
> submission to parisc linux (how embaressing to submit a comment before
> submitting any code!).
>

Sorry I haven't responded to this thread earlier .... (Spent last week traveling ...)
I've been working on trying to figure out
how the boot-loader works, and get it to work on the C200+ (which is PA-RISC 2.0)  I'm
going to assume the
C3000 is also PA-RISC 2.0 also.  I've gone through and attempted to clean up clean up
the code and put in
comments so that I could understand it.  (I've attach my modified head.S.  Be gentle
.... this is my first attempt at
PA-RISC assembly)

Since there seems to be other interest in getting this to work, I'd be very interested
in sharing what I have learned,
and working with others to get this to work.

-Ryan Bradetich who is finally home again.
P.S I really want to help on this port, but I can't until it boots on the C200.

>
> Thanks all,
>
> Frank Rowand
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

--------------B83F451A9D117A9432392387
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/*
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1999 by Helge Deller
 * Copyright 1999 SuSE GmbH (Philipp Rumpf, prumpf@suse.de)
 *
 * Initial Version 04-23-1999 by Helge Deller (helge.deller@ruhr-uni-bochum.de)
 */


/* ---------------------------------------------------------------------------
 *
 * $Log: head.S,v $
 * Revision 1.32  1999/08/31 19:25:23  prumpf
 * fixes
 *
 * Revision 1.30  1999/08/21 19:07:07  prumpf
 * removed the initrd stuff for now
 *
 * Revision 1.29  1999/08/21 17:08:27  prumpf
 * debugging
 *
 * Revision 1.28  1999/08/10 15:44:35  prumpf
 * changes for having the kernel virtually mapped
 *
 * Revision 1.27  1999/08/06 17:05:11  prumpf
 * cleaned up a bit
 *
 * Revision 1.26  1999/07/24 00:00:41  deller
 *
 * * first work on initrd
 *
 * Revision 1.25  1999/07/21 00:30:34  deller
 *
 * * renamed some symbols in head.S (for mmu-code)
 * * the same changes in setup.c
 * * removed irq_setup() from setup.c (not used).
 *
 * Revision 1.24  1999/07/16 10:26:41  prumpf
 * Fixed some of the obvious problems so interruptions will work again
 *
 * Revision 1.23  1999/07/15 13:52:59  deller
 *
 * * found the problem, why kernel stopped with booting via hpux-loader:
 *   the hpux-bootloader did not zero-initialized the BSS segment, so
 *   that all uninitialized variables from kernel was in undefined state.
 * * the kernel now zero-initializes the BSS segment itself
 * * the memory-adress of the first free byte is now the same, it doesn't
 *   matter if you boot via hpux-loader or our ipl-loader....
 *
 * -> Now booting all ways (network, CD, HDD, hpux) should be OK !
 *
 * Revision 1.22  1999/07/14 09:36:52  deller
 *
 * * cache will be reset, when init_cache() is called,
 * * fatal() is called, when a function from fixme.c is called,
 * * the Kernel now gets the (yet static) command-line from the bootloader.
 *
 * Revision 1.21  1999/07/13 23:33:30  deller
 *
 * next approach on Phillips' bug-report. (better, should work, but not optimal!)
 * the bogompis/irq-detection hangs when booted via hpux-bootloader,
 * it seems that some general irq-flags has to be set in head.s or irq.c (?)
 *
 * Revision 1.20  1999/07/13 20:59:29  deller
 *
 * Phillip, would you try again with this....
 * Please remove the boot/boot_code/ipl-file before (maybe it's now done
 * automatically).
 *
 * Revision 1.18  1999/07/13 01:23:25  deller
 *
 * small changes in fixme.c - (it would be good to remove that file),
 * better memory-optimization in head.S for booting from the local hpux-bootloader
 * (tested with HP-UX 10.20).
 *
 * Revision 1.17  1999/07/09 21:54:44  deller
 *
 *
 * Fixed the hpux-bootloader-problem !
 * The problem was in head.S (where I assumed, that we always start the kernel
 * from our own bootloader).
 *
 * Now you can do:
 * boot pri isl
 * hpux /stand/vmlinux
 *
 * Revision 1.16  1999/07/08 15:47:31  prumpf
 * stack alignment is 64 bytes
 *
 */

/* 			FIXME !!!
    When vmlinux was started by the hpux-bootloader, then I don't know
    the size of the BSS-Data, which follows the end of the vmlinux-file.
    I did some debugging-tests here, and it seemed, that %arg3=%r23 will get 
    the HALF of the size of BSS from the bootloader, so I implemented that !
    If anybody has real documentation, please contact me:
    Helge Deller <helge.deller@ruhr-uni-bochum.de> or <deller@gmx.de>
    
    (NB: The commands for booting are: "boot pri isl" and "hpux /stand/vmlinux").

    Maybe I should mention, that this problem does not exist, when vmlinux
    was started by our own bootloader.

    Helge Deller, 99-07-13
*/

#define	PA(x) ((x)-0xc0000000)

#include <asm/offset.h>
#include <asm/psw.h>

	.level 1.1

	.space $TEXT$
	.subspa $UNWIND_START$,QUAD=0,ALIGN=8,ACCESS=0x2C,SORT=56
	.export $UNWIND_START
$UNWIND_START
	.subspa $UNWIND_END$,QUAD=0,ALIGN=8,ACCESS=0x2C,SORT=73
	.export $UNWIND_END
$UNWIND_END

	.space $TEXT$
	.subspa $FIRST$
	.import start_parisc,code
	.import init_task_union,data
	.import fault_vector,code
	.import	$global$
	
	.export stext
	.export _stext,data		; Kernel want it this way!
	.export $START$,entry
$START$	
_stext
stext
	.proc
	.callinfo

	copy		%r0,%dp			; Debug

	ldil		L%$global$,%dp		; Initialize the global
	ldo		R%$global$(%dp),%dp	; data pointer (%dp)
	
	ldil		L%TASK_SZ_ALGN,%r13
        ldo             R%TASK_SZ_ALGN(%r13),%r13
	
	ldil		L%PA(init_task_union+TASK_SZ_ALGN),%sp
	ldo		R%PA(init_task_union+TASK_SZ_ALGN)(%sp),%sp

	copy 		%sp,%r12		; Debug
	/*
	 * There are 2 possible methods, how vmlinux was started:
	 *
	 * 1. It was started by our own ipl-bootloader:
	 *     	%arg0=Kernel_MemFreeStart ( >= offset(_bss_start)) [not used!]
	 *	%arg1=ptr to the command line
	 *	%arg3(=%r23) holds HALF(!) of the size of the BSS-Segment 
	 *
	 * 2. It was started by the hpux-bootloader:
	 *	%arg0 should then be lower than offset(_bss_start)
	 * 	%arg1= ????? [not used!]
	 *	%arg3(=%r23) holds HALF(!) of the size of the BSS-Segment 
	 */

	ldil		L%_bss_start-0xc0000000,%r10
	ldo		R%_bss_start-0xc0000000(%r10),%r10	; _bss_start

	comclr,<<	%r10,%arg0,%r0		; is %arg0 < offset _bss_start ??
	copy		%r0,%arg1	

	sh1add		%arg3,%r10,%arg0	; _bss_start + 2*(bss_size)
	depi		3,1,2, %arg0            ; 0xC0000000 + %arg0

	/* Why are we setting up the BTLB?  */
	/* setup the BTLB.  XXX: This assumes a unified BTLB */
	ldo		128(%sp),%sp
	stw		%arg0, -128(%sp)
	stw		%arg1, -124(%sp)
	stw		%arg2, -120(%sp)
	stw		%arg3, -116(%sp)

	/* What are we doing here? */
	ldo		0x388(%r0), %r1		; What is the significance of 0x388?
						; 0x388 (Page C-3) Start of MEM_PDC[32-63]

	ldwax		%r0(%r1), %r1 	 	; ldwax does not exist in PA-RISC 2.0??
						; Do we need this statement??

	ldo		18(%r0), %arg0		; (Page C-4) MEM_PF_LEN (Checksum for MEM_POW_FAIL)
	ldo		1(%r0), %arg1		; (Page C-4) MEM_POW_FAIL
	ldil		L%0xc0000, %arg3        ; What this significance of this statement?
	ldo		0(%r0), %arg2           ; (Page C-4) 0

	ldil		L%0x00000000, %r22	; Start of PAGE0 Data format (C-3)?
	stw		%r22, -52(%sp)

	ldo		4096(0), %r22		; What is the significance of 0x4096?
	stw		%r22, -56(%sp) 		; End of the PAGE0 Data format (C-3)?

	ldil		L%0x03000000, %r22	; What is the significance of 0x03000000?
	stw		%r22, -60(%sp)

	ldo		0(%r0), %r22		; We already stored 0 once ... Why again?
	stw		%r22, -64(%sp)

	ldil		L%PA(.+12),%r2	        ; Not sure what this is doing ..... 
	bv		%r0(%r1)		; %r1 is set by ldil ...	
	ldo		R%PA(.+4)(%r2), %r2	; No clue about this either ... (.+4)  -> pc-relative

	/* Restore the origional values of %arg0 - %arg3 from the stack */
	ldw		-128(%sp), %arg0
	ldw		-124(%sp), %arg1
	ldw		-120(%sp), %arg2
	ldw		-116(%sp), %arg3
	ldo		-128(%sp), %sp
	
	/* Load the fault vector into %r10 */
	ldil		L%PA(fault_vector), %r10
	ldo		R%PA(fault_vector)(%r10), %r10
	
	/* Move the fault vector into %iva (%cr14) */
	mtctl		%r10, %iva

	/* Store the following value 0xF(%sp{2..31})
	depi		3, 1, 2, %sp
	/* Store this value to a temporary control register ....
	mtctl		%r0, %cr30

	mtsm		%r0			; Disable (most) interruptions

	
	/* kernel PSW:
	 *  - no interruptions except for HPMC and TOC (which are handled by PDC)
	 *  - Q bit set (IODC / PDC interruptions)
	 *  - big-endian
	 *  - virtually mapped
	 */
#define KERNEL_PSW 0x4000a
	
	/* Set the C, Q, and D bits */
	ldil		L%KERNEL_PSW,%r10
	ldo		R%KERNEL_PSW(%r10),%r10
	mtctl		%r10,%ipsw 
	
	mtctl		%r0,%cr17		; Clear two-level IIA Space Queue
	mtctl		%r0,%cr17		;    effectively setting kernel space.
	ldil		L%start_parisc,%r10
	ldo		R%start_parisc(%r10),%r10

	mtctl		%r10,%cr18
	ldo		4(%r10),%r10
	mtctl		%r10,%cr18

	mtctl		%arg0, %cr0

	rfi
	nop
	.procend

	.space	$PRIVATE$
	.subspa	$GLOBAL$
	.export	$global$,data
	.export	_data_start,data
$global$
_data_start
	.word 0	

/* offset(_bss_start) is the start of the $BSS-segment in vmlinux */

	.space	$PRIVATE$
	.subspa $BSS$,QUAD=1,ALIGN=8,ACCESS=31,ZERO,SORT=82
	.export	_bss_start,data
_bss_start

--------------B83F451A9D117A9432392387--


From - Thu Nov 08 21:10:58 2018
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From: "Justin Hamilton" <JHamilton@Earthling.Net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Trying to boot on an N-Class
Date: Sat, 23 Oct 1999 23:44:00 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:6236

Here's what I get when trying to boot the kernel on an N-Class:

Firmware Version  39.25

Duplex Console IO Dependent Code (IODC) revision 1

----------------------------------------------------------------------------
--
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
----------------------------------------------------------------------------
--

  Processor   Speed            State           CoProcessor State  CacheSize
  Number                                       State              Inst
Data
  ---------  --------   ---------------------  -----------------  ----------
--
      1      360  MHz   Active                 Functional         512KB   1
MB
      3      360  MHz   Idle                   Functional         512KB   1
MB

  Central Bus Speed (in MHz)  :        120
  Available Memory            :    2097152  KB
  Good Memory Required        :     140844  KB

   Primary boot path:    1/10/0/0.8
   Alternate boot path:  0/0/2/1.6
   Console path:         0/0/4/0.0
   Keyboard path:        0/0/4/0.0


Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.

Main Menu: Enter command or menu > bo 1/10/0/0.8.1
Interact with IPL (Y, N, or Cancel)?> n

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.

----------------------------------------------------------------------------
--

PARISC/Linux Bootstrap Version 0.6 (non-interactive)
By Helge Deller & Jason Eckhardt
Built Wed Oct 20 04:01:37 EDT 1999 by chris@rum

Reading parameters...done.

Loading PA-RISC/Linux Kernel...
No ramdisks available.
SOM-Kernel:
aux_header_location: 00000080
som       : 00200080
exec_dfile: 000B4000
exec_dsize: 0007F000
exec_dmem : C008A000
exec_tfile: 0003A000
exec_tsize: 00079008
exec_tmem : C0010000
Code at 0x00010000, size=0x00079008
Data at 0x0008A000, size=0x0007F000
BSS  at 0x00109000.

Transferring control to kernel. (At entry point 0x00010000)

And this is where it sits.

Is this kind of info useful to anyone?  Am I expecting too much at this
stage in development?

Justin Hamilton
Unix Systems Engineer.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trying to boot on an N-Class
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Xref: news.gmane.org gmane.linux.ports.parisc:6237

"Justin Hamilton" wrote:
> Here's what I get when trying to boot the kernel on an N-Class:
...
> And this is where it sits.
> 
> Is this kind of info useful to anyone? 

Not to me. (yet). But I have access to N-class machines.

> Am I expecting too much at this stage in development?

Definitely. Firmware on N-class is *quite* different from the
of two flavors of PDC we have the current code talking to.
And none of the CEC (Core Electronics Complex - CPU, Mem, I/O bus
adapters) in an N-class are supported by the code in CVS today.
We are quite a ways off from implementing everything N-class needs.
The docs for that box are not (and probably won't be) published
for quite a while.

The next step in that direction is probably to write PA2.0 processor
support and support for the "ccio" bus adapter. Then try to get this
working on a C200 through C360. I know some folks are working on the
processor support but docs for "ccio" haven't been released.
(Or have they?)

thanks though,
grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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From: Philipp Rumpf <prumpf@suse.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trying to boot on an N-Class
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> exec_tfile: 0003A000
> exec_tsize: 00079008
> exec_tmem : C0010000
> Code at 0x00010000, size=0x00079008
> Data at 0x0008A000, size=0x0007F000
> BSS  at 0x00109000.
> 
> Transferring control to kernel. (At entry point 0x00010000)
> 
> And this is where it sits.

This looks like it is the same PA 2.0 PDC problem we see on the C class.
Could you try againg after we fixed it ?  (Don't expect the kernel to do
too much with your hardware in the near future, but at least you might
be able to get to a shell prompt).

	Philipp Rumpf


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] So you wanna get to a prompt, eh?
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On Fri, 22 Oct 1999, Magne [iso-8859-1] stlyngen wrote:
> > The 700 has an ancient IO architecture that we don't have any
> > documentation on, so it's not high on the list of priorities.
> But it is possible to get the docs from HP?

I can't speak for HP on this, but I will say that the old IO docs will
only be in the queue of requested items from HP once we've gotten some of
the others out.  We need to prioritize the docs we need, and the stuff
that's in more modern machines (even the 715) is much higher on the lsit.

> Is it possible to compile with linux, and do only the linking on the hp?

That should work.

> (It isn't very fast.. :)  Can I link with HPUX 9.03? (probably not)
> 10.30? (It doesn't run 11.x)

That should work, in theory.  I'm not sure anyone's ever tried though.

- Alex


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] rbooting an 735?
Date: Sun, 24 Oct 1999 18:53:25 -0400 (EDT)
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On Fri, 22 Oct 1999, Grant Grundler wrote:
> I don't know what the rbootd problem is...

Actually, I seem to recall patching up the rbootd rpm to support this, but
I don't remember the fix.  If you look at the rbootd source rpm that's up
on ftp://puffin.external.hp.com you should find the patch.

- alex


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] hack to use HPUX boot loader
Date: Sun, 24 Oct 1999 19:08:42 -0400 (EDT)
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To: Paul Bame <bame@debian.fc.hp.com>
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Actually, this is pretty helpful.  Paul, would you consider licensing this
under the GPL?

- Alex

-- 
Alex deVries <adevries@thepuffingroup.com>
Vice President Engineering
The Puffin Group

On Fri, 22 Oct 1999, Paul Bame wrote:

> 
> Ok prumpf, here's the hack I suggested.  I didn't check it into CVS
> anywhere (maybe arch/parisc/boot?).  It appears to work quite well
> even without any changes to head.S
> 
> For those not privy to our conversation, this little tool munges
> your SOM vmlinux file so that it can be loaded by the normal hpux
> boot loader.  I'm not suggesting this is a great long-term strategy,
> but it might make life easier for someone.
> 
> 	-Paul Bame
> 
> 
> #!/bin/sh
> # This is a shell archive (produced by GNU sharutils 4.2).
> # To extract the files from this archive, save it to some FILE, remove
> # everything before the `!/bin/sh' line above, then type `sh FILE'.
> #
> # Made on 1999-10-22 17:33 MDT by <bame@fc.hp.com>.
> # Source directory was `/users/bame/puffin/parisc/linux/arch/parisc/boot'.
> #
> # Existing files will *not* be overwritten unless `-c' is specified.
> #
> # This shar contains:
> # length mode       name
> # ------ ---------- ------------------------------------------
> #   2197 -rw-r--r-- som_relocate.c
> #   5425 -rw-r--r-- copy-of-som.h
> #
> save_IFS="${IFS}"
> IFS="${IFS}:"
> gettext_dir=FAILED
> locale_dir=FAILED
> first_param="$1"
> for dir in $PATH
> do
>   if test "$gettext_dir" = FAILED && test -f $dir/gettext \
>      && ($dir/gettext --version >/dev/null 2>&1)
>   then
>     set `$dir/gettext --version 2>&1`
>     if test "$3" = GNU
>     then
>       gettext_dir=$dir
>     fi
>   fi
>   if test "$locale_dir" = FAILED && test -f $dir/shar \
>      && ($dir/shar --print-text-domain-dir >/dev/null 2>&1)
>   then
>     locale_dir=`$dir/shar --print-text-domain-dir`
>   fi
> done
> IFS="$save_IFS"
> if test "$locale_dir" = FAILED || test "$gettext_dir" = FAILED
> then
>   echo=echo
> else
>   TEXTDOMAINDIR=$locale_dir
>   export TEXTDOMAINDIR
>   TEXTDOMAIN=sharutils
>   export TEXTDOMAIN
>   echo="$gettext_dir/gettext -s"
> fi
> touch -am 1231235999 $$.touch >/dev/null 2>&1
> if test ! -f 1231235999 && test -f $$.touch; then
>   shar_touch=touch
> else
>   shar_touch=:
>   echo
>   $echo 'WARNING: not restoring timestamps.  Consider getting and'
>   $echo "installing GNU \`touch', distributed in GNU File Utilities..."
>   echo
> fi
> rm -f 1231235999 $$.touch
> #
> if mkdir _sh24082; then
>   $echo 'x -' 'creating lock directory'
> else
>   $echo 'failed to create lock directory'
>   exit 1
> fi
> # ============= som_relocate.c ==============
> if test -f 'som_relocate.c' && test "$first_param" != -c; then
>   $echo 'x -' SKIPPING 'som_relocate.c' '(file already exists)'
> else
> shar: Saving som_relocate.c (text)
>   $echo 'x -' extracting 'som_relocate.c' '(text)'
>   sed 's/^X//' << 'SHAR_EOF' > 'som_relocate.c' &&
> #include <stdio.h>
> #include <sys/time.h>
> #include <assert.h>
> #include "copy-of-som.h"
> X
> /* You'll need "copy-of-som.h" to compile this.  If you don't have it,
> X * grab a copy from include/linux/som.h and remove the #include directive.
> X *
> X * Compile with gcc -o som_relocate som_relocate.c
> X *
> X * Run this on your parisc SOM kernel (vmlinux) and then you can use
> X * the hpux boot loader to load it.  Here's what it looks like
> X * when interacting with the boot ROM:
> X *
> X * ISL>					# the normal HP-UX boot prompt
> X *
> X * ISL> hpux /boot/vmlinux		# Use your path to vmlinux here
> X *
> X *
> X * You can run this over and over without ill effect on the same
> X * kernel image.
> X *
> X * Enjoy,
> X *
> X *				-Paul Bame
> X */
> X
> /* relocate address to where it'll live physically */
> #define RELOCATE(x)		x &= ~0xC0000000
> X
> int
> main(int argc, char *argv[])
> {
> X    FILE *f;
> X    struct som_hdr sh;
> X    struct som_exec_auxhdr aux;
> X
> X    if (argc != 2)
> X    {
> X	fprintf(stderr, "Usage: %s <SOM-vmlinux>\n", argv[0]);
> X	return 2;
> X    }
> X
> X    if ((f = fopen(argv[1], "rb+")) == NULL)
> X    {
> X	perror(argv[1]);
> X	return 3;
> X    }
> X
> X    /* read the SOM header */
> X    fread(&sh, sizeof sh, 1, f);
> X
> X    /* hack it */
> X    printf("entry_space 0x%08x\n", sh.entry_space);
> X    printf("entry_subspace 0x%08x\n", sh.entry_subspace);
> X    printf("RELOCATE entry_offset 0x%08x\n", sh.entry_offset);	/********/
> X    RELOCATE(sh.entry_offset);
> X    printf("aux_header_location 0x%08x\n", sh.aux_header_location);
> X    printf("aux_header_size %d\n", sh.aux_header_size);
> X
> X    /* write it */
> X    rewind(f);
> X    fwrite(&sh, sizeof sh, 1, f);
> X
> X    /* read the aux header */
> X    fseek(f, sh.aux_header_location, SEEK_SET);
> X    fread(&aux, sizeof aux, 1, f);
> X    printf("RELOCATE aux.exec_tmem 0x%08x\n", aux.exec_tmem);
> X    RELOCATE(aux.exec_tmem);
> X    printf("aux.exec_tsize %d\n", aux.exec_tsize);
> X    printf("RELOCATE aux.exec_dmem 0x%08x\n", aux.exec_dmem);
> X    RELOCATE(aux.exec_dmem);
> X    printf("aux.exec_dsize %d\n", aux.exec_dsize);
> X    printf("RELOCATE aux.exec_entry 0x%08x\n", aux.exec_entry);
> X    RELOCATE(aux.exec_entry);
> X
> X    /* write it */
> X    fseek(f, sh.aux_header_location, SEEK_SET);
> X    fwrite(&aux, sizeof aux, 1, f);
> X
> X    fclose(f);
> X    return 0;
> }
> SHAR_EOF
>   $shar_touch -am 102217281999 'som_relocate.c' &&
>   chmod 0644 'som_relocate.c' ||
>   $echo 'restore of' 'som_relocate.c' 'failed'
>   if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
>   && ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
>     md5sum -c << SHAR_EOF >/dev/null 2>&1 \
>     || $echo 'som_relocate.c:' 'MD5 check failed'
> e5852faf2501dcc23a129c99abd1f7e1  som_relocate.c
> SHAR_EOF
>   else
>     shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'som_relocate.c'`"
>     test 2197 -eq "$shar_count" ||
>     $echo 'som_relocate.c:' 'original size' '2197,' 'current size' "$shar_count!"
>   fi
> fi
> # ============= copy-of-som.h ==============
> if test -f 'copy-of-som.h' && test "$first_param" != -c; then
>   $echo 'x -' SKIPPING 'copy-of-som.h' '(file already exists)'
> else
> shar: Saving copy-of-som.h (text)
>   $echo 'x -' extracting 'copy-of-som.h' '(text)'
>   sed 's/^X//' << 'SHAR_EOF' > 'copy-of-som.h' &&
> #ifndef _LINUX_SOM_H
> #define _LINUX_SOM_H
> X
> /* File format definition for SOM executables / shared libraries */
> X
> #define SOM_PAGESIZE 4096
> X
> /* this is the SOM header */
> struct som_hdr {
> X	short		system_id;		/* magic number - system */
> X	short		a_magic;		/* magic number - file type */
> X	unsigned int	version_id;		/* versiod ID: YYMMDDHH */
> X	struct timespec	file_time;		/* system clock */
> X	unsigned int	entry_space;		/* space for entry point */
> X	unsigned int	entry_subspace;		/* subspace for entry point */
> X	unsigned int	entry_offset;		/* offset of entry point */
> X	unsigned int	aux_header_location;	/* auxiliary header location */
> X	unsigned int	aux_header_size;	/* auxiliary header size */
> X	unsigned int	som_length;		/* length of entire SOM */
> X	unsigned int	presumed_dp;		/* compiler's DP value */
> X	unsigned int	space_location;		/* space dictionary location */
> X	unsigned int	space_total;		/* number of space entries */
> X	unsigned int	subspace_location;	/* subspace entries location */
> X	unsigned int	subspace_total;		/* number of subspace entries */
> X	unsigned int	loader_fixup_location;	/* MPE/iX loader fixup */
> X	unsigned int	loader_fixup_total;	/* number of fixup records */
> X	unsigned int	space_strings_location;	/* (sub)space names */
> X	unsigned int	space_strings_size;	/* size of strings area */
> X	unsigned int	init_array_location;	/* reserved */
> X	unsigned int	init_array_total;	/* reserved */
> X	unsigned int	compiler_location;	/* module dictionary */
> X	unsigned int	compiler_total;		/* number of modules */
> X	unsigned int	symbol_location;	/* symbol dictionary */
> X	unsigned int	symbol_total;		/* number of symbols */
> X	unsigned int	fixup_request_location;	/* fixup requests */
> X	unsigned int	fixup_request_total;	/* number of fixup requests */
> X	unsigned int	symbol_strings_location;/* module & symbol names area */
> X	unsigned int	symbol_strings_size;	/* size of strings area */
> X	unsigned int	unloadable_sp_location;	/* unloadable spaces location */
> X	unsigned int	unloadable_sp_size;	/* size of data */
> X	unsigned int	checksum;
> };
> X
> /* values for system_id */
> X
> #define SOM_SID_PARISC_1_0	0x020b
> #define SOM_SID_PARISC_1_1	0x0210
> #define SOM_SID_PARISC_2_0	0x0214
> X
> /* values for a_magic */
> X
> #define SOM_LIB_EXEC		0x0104
> #define SOM_RELOCATABLE		0x0106
> #define SOM_EXEC_NONSHARE	0x0107
> #define SOM_EXEC_SHARE		0x0108
> #define SOM_EXEC_DEMAND		0x010B
> #define SOM_LIB_DYN		0x010D
> #define SOM_LIB_SHARE		0x010E
> #define SOM_LIB_RELOC		0x0619
> X
> /* values for version_id.  Decimal not hex, yes.  Grr. */
> X
> #define SOM_ID_OLD		85082112
> #define SOM_ID_NEW		87102412
> X
> struct aux_id {
> X	unsigned int	mandatory :1;	/* the linker must understand this */
> X	unsigned int	copy	  :1;	/* Must be copied by the linker */
> X	unsigned int	append	  :1;	/* Must be merged by the linker */
> X	unsigned int	ignore	  :1;	/* Discard section if unknown */
> X	unsigned int	reserved  :12;
> X	unsigned int	type	  :16;	/* Header type */
> X	unsigned int	length;		/* length of _following_ data */
> };
> X
> /* The Exec Auxiliary Header.  Called The HP-UX Header within HP apparently. */
> struct som_exec_auxhdr {
> X	struct aux_id	som_auxhdr;
> X	int		exec_tsize;	/* Text size in bytes */
> X	int		exec_tmem;	/* Address to load text at */
> X	int		exec_tfile;	/* Location of text in file */
> X	int		exec_dsize;	/* Data size in bytes */
> X	int		exec_dmem;	/* Address to load data at */
> X	int		exec_dfile;	/* Location of data in file */
> X	int		exec_bsize;	/* Uninitialised data (bss) */
> X	int		exec_entry;	/* Address to start executing */
> X	int		exec_flags;	/* loader flags */
> X	int		exec_bfill;	/* initialisation value for bss */
> };
> X
> /* Oh, the things people do to avoid casts.  Shame it'll break with gcc's
> X * new aliasing rules really.
> X */
> union name_pt {
> X	char *		n_name;
> X	unsigned int	n_strx;
> };
> X
> /* The Space Dictionary */
> struct space_dictionary_record {
> X	union name_pt	name;			/* index to subspace name */
> X	unsigned int	is_loadable	:1;	/* loadable */
> X	unsigned int	is_defined	:1;	/* defined within file */
> X	unsigned int	is_private	:1;	/* not sharable */
> X	unsigned int	has_intermediate_code :1; /* contains intermediate code */
> X	unsigned int	is_tspecific	:1;	/* thread specific */
> X	unsigned int	reserved	:11;	/* for future expansion */
> X	unsigned int	sort_key	:8;	/* for linker */
> X	unsigned int	reserved2	:8;	/* for future expansion */
> X
> X	int		space_number;		/* index */
> X	int		subspace_index;		/* index into subspace dict */
> X	unsigned int	subspace_quantity;	/* number of subspaces */
> X	int		loader_fix_index;	/* for loader */
> X	unsigned int	loader_fix_quantity;	/* for loader */
> X	int		init_pointer_index;	/* data pointer array index */
> X	unsigned int	init_pointer_quantity;	/* number of data pointers */
> };
> X
> /* The Subspace Dictionary */
> struct subspace_dictionary_record {
> X	int		space_index;
> X	unsigned int	access_control_bits :7;
> X	unsigned int	memory_resident	:1;
> X	unsigned int	dup_common	:1;
> X	unsigned int	is_common	:1;
> X	unsigned int	quadrant	:2;
> X	unsigned int	initially_frozen :1;
> X	unsigned int	is_first	:1;
> X	unsigned int	code_only	:1;
> X	unsigned int	sort_key	:8;
> X	unsigned int	replicate_init	:1;
> X	unsigned int	continuation	:1;
> X	unsigned int	is_tspecific	:1;
> X	unsigned int	is_comdat	:1;
> X	unsigned int	reserved	:4;
> X
> X	int		file_loc_init_value;
> X	unsigned int	initialization_length;
> X	unsigned int	subspace_start;
> X	unsigned int	subspace_length;
> X
> X	unsigned int	reserved2	:5;
> X	unsigned int	alignment	:27;
> X
> X	union name_pt	name;
> X	int		fixup_request_index;
> X	unsigned int	fixup_request_quantity;
> };
> X
> #endif /* _LINUX_SOM_H */
> SHAR_EOF
>   $shar_touch -am 102217001999 'copy-of-som.h' &&
>   chmod 0644 'copy-of-som.h' ||
>   $echo 'restore of' 'copy-of-som.h' 'failed'
>   if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
>   && ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
>     md5sum -c << SHAR_EOF >/dev/null 2>&1 \
>     || $echo 'copy-of-som.h:' 'MD5 check failed'
> 55c72739b33cd9ed3da5dce3a68cdfdb  copy-of-som.h
> SHAR_EOF
>   else
>     shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'copy-of-som.h'`"
>     test 5425 -eq "$shar_count" ||
>     $echo 'copy-of-som.h:' 'original size' '5425,' 'current size' "$shar_count!"
>   fi
> fi
> rm -fr _sh24082
> exit 0
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 
> 
> 


From - Thu Nov 08 21:10:58 2018
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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] keyboards and such.
Date: Sun, 24 Oct 1999 23:01:57 -0400 (EDT)
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So, I've spent some time looking at the keyboard device driver in the
Linux kernel, and it really wants there to be an 8042 PS/2 controller,
which just doesn't exist on the Lasi.

This means that I can speak directly to the keyboard, which shouldn't be
too difficult to whip up a driver if I had the docs on how to speak to the
keyboard.

Does anyone have docs on how to speak to a standard AT or PS/2 keyboard?
The Black Puffin of Death will haunt you if you point me to 8042
controller docs.

- Alex

-- 
Alex deVries <adevries@thepuffingroup.com>
Vice President Engineering
The Puffin Group


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From: "Simen Timian Thoresen" <simentt@dolphinics.no>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] rbooting an 735?
Date: Mon, 25 Oct 1999 08:16:42 +0200
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> On Fri, 22 Oct 1999, Grant Grundler wrote:
> > I don't know what the rbootd problem is...
> 
> Actually, I seem to recall patching up the rbootd rpm to support this, but
> I don't remember the fix.  If you look at the rbootd source rpm that's up
> on ftp://puffin.external.hp.com you should find the patch.
> 
> - alex

ftp://puffin.external.hp.com/pub/parisc/binaries/SRPMS/rbootd-2.0-2.src.rpm

GREAT!
That seems as if it should work!
I'll try it when I get home tonight.

Shouldn't this change be back-propagated to the original rbootd 
maintaners? 

-Simen
--
Simen Thoresen, Beowulf-cleaner and random artist.

Er det ikke rart?
The gnu RART-project on valinor.dolphinics.no/~simentt/rart


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From: Martin Schulze <joey@finlandia.Infodrom.North.DE>
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Subject: Re: rbooting an 735?
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Simen Timian Thoresen wrote:
> > Actually, I seem to recall patching up the rbootd rpm to support this, but
> > I don't remember the fix.  If you look at the rbootd source rpm that's up
> > on ftp://puffin.external.hp.com you should find the patch.

> ftp://puffin.external.hp.com/pub/parisc/binaries/SRPMS/rbootd-2.0-2.src.rpm

> Shouldn't this change be back-propagated to the original rbootd 
> maintaners? 

Sure, it should.  However, I wonder if the code is still maintained
inside of the University of Utah...

Regards,

	Joey

-- 
There are lies, statistics and benchmarks.

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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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Dies ist eine mehrteilige Nachricht im MIME-Format.
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Helge Deller schrieb:

> Hello all !
>
> Maybe someone with a working BOOTP or RBOOTD could please give me some help/advice,
> how to set up the network-booting for an HP 715/64 and an iA32-SuSE-6.0-Distribution
> ?
> [.....]Thanks,
> Helge Deller.
>

Ok, I got it myself work !

Here's the output:
------------------
IPL_DEBUG: Page zero parameters:
P0_IMM_max_mem:          67108864 (64MB)
P0_IMM_spa_size:         67108864
P0_MC_cont_size:         67108864
P0_MC_phys_size:         67108864
P0_MC_ad_size:           67108864
P0_BOOTCPU_mem_free:     0x000000
P0_BOOTCPU_hpa:          0xFFFBE000
P0_BOOTCPU_pdc:          0xF0012870
P0_BOOTCPU_10msec:       640000
P0_COUT_iodc_io:         0x00008480
P0_CIN_iodc_io:          0x00008000
P0_BOOTDEV_iodc_io:      0x0000BAE8
P0_COUT_class:           0x00000009
P0_CIN_class:            0x00000008
P0_BOOTDEV_class:        0x00001002
Reading parameters...donepLoading done.        <---- Original Output !
Transferri                                                          <- IT STOPPED HERE
!!!!!!!!!!

---------------------------------------------------
Booting via BOOTP on an HP 9000/715/D....

JASON: It seems, that you have to insert some wait-cycles before proceeding...!
The screen-output seems to be delayed, and so some chars seems to be overwritten (?)

Good work,
Helge Deller.

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From - Thu Nov 08 21:10:58 2018
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From: Martin Schulze <joey@finlandia.Infodrom.North.DE>
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Subject: [parisc-linux] Searching for HP9000/425 and HP Apollo A1630 docs
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Hi,

firstly, I'm sorry for being off-topic.  However, since some HP
employees are reading this list it was suggested that I ask here.

I have aquired two HP9000/425dl (processor: 68040/25) machines on
which I'd like to run Linux.  I'm working on it with a friend who's
got a similar machine, HP Apollo A1630 model 425t and a HP Apollo
A1630 model 400t with 68030 processor.  The machines have these
framebuffers: A1416A, A1924 and A1630.  At the moment we get the
machine boot but the kernel dies afterwards, for sure.

In order to get Linux support those boxes we would need hardware
documentation of these machines.  We would be *very* glad and thankful
if somebody from HP would remember these machines.

Regards,

	Joey

-- 
There are lies, statistics and benchmarks.


From - Thu Nov 08 21:10:59 2018
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From: Simen Thoresen <simen-tt@online.no>
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Subject: [parisc-linux] success rbooting 735!
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After applying the patch in rbootd-2.0-2.src.rpm from the 

ftp://puffin.external.hp.com/pub/parisc/binaries/SRPMS/ directory, my
rbootd server nicely serves Images to my 735 (In swapper task - not
syncing) :-)

Thanks, Alex!

I'll build a new kernel tomorrow, and post a bootlog if there is interest.

I'm currently mailing Peter Maydell <pmaydell@chiark.greenend.org.uk> (who
seems to have ported rbootd to linux, or atleast hosts the site) and am
trying to track down an bsd'ish maintainer, to let him/them have our patch.

-Simen
--
Kenny went to hell for your sins!

Er det ikke rart?
gnu Random ARTwork project - valinor.dolphinics.no:1080/~simentt/rart


From - Thu Nov 08 21:10:59 2018
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From: Frank Rowand <frowand@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] comments for BTLB setup
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Ryan,

You didn't do too bad for a first shot at reading pa-risc assembly, but
let me help you out a bit.

you wrote (among other things...):

> /* Why are we setting up the BTLB?  */
> /* setup the BTLB.  XXX: This assumes a unified BTLB */
> ldo       128(%sp),%sp
> stw       %arg0, -128(%sp)
> stw       %arg1, -124(%sp)
> stw       %arg2, -120(%sp)
> stw       %arg3, -116(%sp)
> 
> /* What are we doing here? */
> ldo       0x388(%r0), %r1         ; What is the significance of 0x388?
>                                         ; 0x388 (Page C-3) Start of MEM_PDC[32-63]
> 
> ldwax  %r0(%r1), %r1       ; ldwax does not exist in PA-RISC 2.0??
>                            ; Do we need this statement??
> 
> ldo    18(%r0), %arg0      ; (Page C-4) MEM_PF_LEN (Checksum for MEM_POW_FAIL)
> ldo    1(%r0), %arg1       ; (Page C-4) MEM_POW_FAIL
> ldil   L%0xc0000, %arg3    ; What this significance of this statement?
> ldo    0(%r0), %arg2       ; (Page C-4) 0
> 
> ldil   L%0x00000000, %r22  ; Start of PAGE0 Data format (C-3)?
> stw    %r22, -52(%sp)
> 
> ldo    4096(0), %r22       ; What is the significance of 0x4096?
> stw    %r22, -56(%sp)      ; End of the PAGE0 Data format (C-3)?
> 
> ldil   L%0x03000000, %r22  ; What is the significance of 0x03000000?
> stw    %r22, -60(%sp)
> 
> ldo    0(%r0), %r22        ; We already stored 0 once ... Why again?
> stw    %r22, -64(%sp)
> 
> ldil   L%PA(.+12),%r2      ; Not sure what this is doing ..... 
> bv     %r0(%r1)            ; %r1 is set by ldil ...        
> ldo    R%PA(.+4)(%r2), %r2 ; No clue about this either ... (.+4)  -> pc-relative
> 
> /* Restore the origional values of %arg0 - %arg3 from the stack */
> ldw       -128(%sp), %arg0
> ldw       -124(%sp), %arg1
> ldw       -120(%sp), %arg2
> ldw       -116(%sp), %arg3
> ldo       -128(%sp), %sp



First, some notes that will provide some context for the comments in the
code below:


PDCE_PROC is the entry point for calling PDC, see the third paragraph in the
IO ARS chapter "PDC Procedures".  (This chapter is available at
http://devresource.hp.com/devresource/Docs/Refs/PDC32.pdf, which I got to 
from http://devresource.hp.com/devresource/Docs/DocLibrary.html#archrefs.)

For the argument passing conventions for PDCE_PROC, see section 1.3 and 1.4
of the "PDC Procedures" chapter.


> ldo 18(%r0), %arg0     ; (Page C-4) MEM_PF_LEN (Checksum for MEM_POW_FAIL)

ldo is loading an address offset of %r0 (zero) + displacement of 18 into
%arg0.  It is not loading data from the offset, it is loading the offset.
This is just putting a constant into the target register.


> ; ldwax does not exist in PA-RISC 2.0??

Some of the Mnemonics changes from 1.1 to 2.0, but the instruction is
still there.  See Table J-2 in "PA-RISC 2.0 Architecture" by Jerry
Kane for how they renamed instructions.


Useful references for really understanding what's going on here are
the "PA-RISC 1.1 Architecture and Instruction Set Reference Manual"
(look for Block TLB in the index) and PDC_BLOCK_TLB in the "PDC
Procedures" chapter of the IO ARS.

I don't know where Ryan got appendix C (the puffin links seem stale),
but the PA 2.0 version is on the devresource page I mentioned above.
The 2.0 version is the same for the specific reference I make in the
comments below.


Then the same code with comments (and to the peanut gallery, no, I would
not normally comment this profusely), should answer a lot of your
confusion:


        /* setup the BTLB.  XXX: This assumes a unified BTLB */
        ldo             128(30),30			;create a stack frame
        stw             26, -128(30)
        stw             25, -124(30)
        stw             24, -120(30)
        stw             23, -116(30)

        ldo             0x388(0), 1			; IO ARS p.C-3, C-6, MEM_PDC
        ldwax           0(1), 1				; get address of PDCE_PROC()

        ldo             18(0), 26			; arg0 - PDC_BLOCK_TLB()
        ldo             1(0), 25			; arg1 - Insert entry
        ldil            L%0xc0000, 23		; arg3 - virtual addr LSbits
											; should this be %L0xc0000000 ??
        ldo             0(0), 24			; arg2 - virtual addr MSbits
        ldil            L%0x00000000, 22
        stw             22, -52(30)			; arg4 - physical addr
        ldo             4096(0), 22
        stw             22, -56(30)			; arg5 - length in pages
        ldil            L%0x03000000, 22
        stw             22, -60(30)			; arg6 - entry info
											;        (access rights & ID)
        ldo              0(0), 22
        stw             22, -64(30)			; arg7 - slot 0
        ldil            L%PA(.+12), 2
        bv              0(1)    			; PDCE_CALL(PDC_BLOCK_TLB, ...)
        ldo             R%PA(.+4)(2), 2		; set return pointer to next
											; instruction

        ldo             0x388(0), 1
        ldwax           0(1), 1
        ldo             18(0), 26
        ldo             1(0), 25
        ldil            L%0xc0000, 23
        ldo             0(0), 24
        ldil            L%0x00000000, 22
        stw             22, -52(30)
        ldo             4096(0), 22
        stw             22, -56(30)
        ldil            L%0x03000000, 22
        stw             22, -60(30)
        ldo              2(0), 22
        stw             22, -64(30)			; arg7 - slot 2
        ldil            L%PA(.+12), 2
        bv              0(1)    			; PDCE_CALL(PDC_BLOCK_TLB, ...)
        ldo             R%PA(.+4)(2), 2

        comb,<>          0,28, blargh		; if (return value <> 0) blargh()
        ldw             -128(30), 26
        ldw             -124(30), 25
        ldw             -120(30), 24
        ldw             -116(30), 23
        ldo             -128(30),30



-Frank Rowand


From - Thu Nov 08 21:10:59 2018
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From: Frank Rowand <frowand@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] comments for BTLB setup (no TABs)
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(Sorry all for the previous message, I use 4 column tabstops, the rest of
the world uses 8 column tabstops.  I took the tabs out this time.)

Ryan,

You didn't do too bad for a first shot at reading pa-risc assembly, but
let me help you out a bit.

you wrote (among other things...):

> /* Why are we setting up the BTLB?  */
> /* setup the BTLB.  XXX: This assumes a unified BTLB */
> ldo       128(%sp),%sp
> stw       %arg0, -128(%sp)
> stw       %arg1, -124(%sp)
> stw       %arg2, -120(%sp)
> stw       %arg3, -116(%sp)
> 
> /* What are we doing here? */
> ldo       0x388(%r0), %r1         ; What is the significance of 0x388?
>                                         ; 0x388 (Page C-3) Start of MEM_PDC[32-63]
> 
> ldwax  %r0(%r1), %r1       ; ldwax does not exist in PA-RISC 2.0??
>                            ; Do we need this statement??
> 
> ldo    18(%r0), %arg0      ; (Page C-4) MEM_PF_LEN (Checksum for MEM_POW_FAIL)
> ldo    1(%r0), %arg1       ; (Page C-4) MEM_POW_FAIL
> ldil   L%0xc0000, %arg3    ; What this significance of this statement?
> ldo    0(%r0), %arg2       ; (Page C-4) 0
> 
> ldil   L%0x00000000, %r22  ; Start of PAGE0 Data format (C-3)?
> stw    %r22, -52(%sp)
> 
> ldo    4096(0), %r22       ; What is the significance of 0x4096?
> stw    %r22, -56(%sp)      ; End of the PAGE0 Data format (C-3)?
> 
> ldil   L%0x03000000, %r22  ; What is the significance of 0x03000000?
> stw    %r22, -60(%sp)
> 
> ldo    0(%r0), %r22        ; We already stored 0 once ... Why again?
> stw    %r22, -64(%sp)
> 
> ldil   L%PA(.+12),%r2      ; Not sure what this is doing ..... 
> bv     %r0(%r1)            ; %r1 is set by ldil ...        
> ldo    R%PA(.+4)(%r2), %r2 ; No clue about this either ... (.+4)  -> pc-relative
> 
> /* Restore the origional values of %arg0 - %arg3 from the stack */
> ldw       -128(%sp), %arg0
> ldw       -124(%sp), %arg1
> ldw       -120(%sp), %arg2
> ldw       -116(%sp), %arg3
> ldo       -128(%sp), %sp



First, some notes that will provide some context for the comments in the
code below:


PDCE_PROC is the entry point for calling PDC, see the third paragraph in the
IO ARS chapter "PDC Procedures".  (This chapter is available at
http://devresource.hp.com/devresource/Docs/Refs/PDC32.pdf, which I got to 
from http://devresource.hp.com/devresource/Docs/DocLibrary.html#archrefs.)

For the argument passing conventions for PDCE_PROC, see section 1.3 and 1.4
of the "PDC Procedures" chapter.


> ldo 18(%r0), %arg0     ; (Page C-4) MEM_PF_LEN (Checksum for MEM_POW_FAIL)

ldo is loading an address offset of %r0 (zero) + displacement of 18 into
%arg0.  It is not loading data from the offset, it is loading the offset.
This is just putting a constant into the target register.


> ; ldwax does not exist in PA-RISC 2.0??

Some of the Mnemonics changes from 1.1 to 2.0, but the instruction is
still there.  See Table J-2 in "PA-RISC 2.0 Architecture" by Jerry
Kane for how they renamed instructions.


Useful references for really understanding what's going on here are
the "PA-RISC 1.1 Architecture and Instruction Set Reference Manual"
(look for Block TLB in the index) and PDC_BLOCK_TLB in the "PDC
Procedures" chapter of the IO ARS.

I don't know where Ryan got appendix C (the puffin links seem stale),
but the PA 2.0 version is on the devresource page I mentioned above.
The 2.0 version is the same for the specific reference I make in the
comments below.


Then the same code with comments (and to the peanut gallery, no, I would
not normally comment this profusely), should answer a lot of your
confusion:


        /* setup the BTLB.  XXX: This assumes a unified BTLB */
        ldo             128(30),30          ;create a stack frame
        stw             26, -128(30)
        stw             25, -124(30)
        stw             24, -120(30)
        stw             23, -116(30)

        ldo             0x388(0), 1         ; IO ARS p.C-3, C-6, MEM_PDC
        ldwax           0(1), 1             ; get address of PDCE_PROC()

        ldo             18(0), 26           ; arg0 - PDC_BLOCK_TLB()
        ldo             1(0), 25            ; arg1 - Insert entry
        ldil            L%0xc0000, 23       ; arg3 - virtual addr LSbits
                                            ; should this be %L0xc0000000 ??
        ldo             0(0), 24            ; arg2 - virtual addr MSbits
        ldil            L%0x00000000, 22
        stw             22, -52(30)         ; arg4 - physical addr
        ldo             4096(0), 22
        stw             22, -56(30)         ; arg5 - length in pages
        ldil            L%0x03000000, 22
        stw             22, -60(30)         ; arg6 - entry info
                                            ;        (access rights & ID)
        ldo              0(0), 22
        stw             22, -64(30)         ; arg7 - slot 0
        ldil            L%PA(.+12), 2
        bv              0(1)                ; PDCE_CALL(PDC_BLOCK_TLB, ...)
        ldo             R%PA(.+4)(2), 2     ; set return pointer to next
                                            ; instruction

        ldo             0x388(0), 1
        ldwax           0(1), 1
        ldo             18(0), 26
        ldo             1(0), 25
        ldil            L%0xc0000, 23
        ldo             0(0), 24
        ldil            L%0x00000000, 22
        stw             22, -52(30)
        ldo             4096(0), 22
        stw             22, -56(30)
        ldil            L%0x03000000, 22
        stw             22, -60(30)
        ldo              2(0), 22
        stw             22, -64(30)         ; arg7 - slot 2
        ldil            L%PA(.+12), 2
        bv              0(1)                ; PDCE_CALL(PDC_BLOCK_TLB, ...)
        ldo             R%PA(.+4)(2), 2

        comb,<>          0,28, blargh       ; if (return value <> 0) blargh()
        ldw             -128(30), 26
        ldw             -124(30), 25
        ldw             -120(30), 24
        ldw             -116(30), 23
        ldo             -128(30),30



-Frank Rowand


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From: Philipp Rumpf <prumpf@suse.de>
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Subject: Re: [parisc-linux] keyboards and such.
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> Does anyone have docs on how to speak to a standard AT or PS/2 keyboard?
> The Black Puffin of Death will haunt you if you point me to 8042
> controller docs.

what about looking at the current keyboard driver ?  It looks to me like it
shouldn't be too difficult to work from the assumption that kbd_read_input is
RCVDATA, kbd_read_status is STATUS, KBD_STAT_OBF is RBNE, KBD_STAT_IBF is TBNE,
KBD_STAT_MOUSE_OBF we don't need, KBD_STAT_GTO is TERR and KBD_STAT_PERR is
PERR.

looking at it again, the bit correlations are:

8042		Lasi
0-1		0-1
6-7		2-3
2-5		unimplemented
unimplemented	4-7

assuming there is a 8042-compatible chip inside lasi, it just seems to get the
line for bit 2 as both input line 2 and 3 (and there's some additional logic
around it).

	Philipp Rumpf


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Subject: Re: [parisc-linux] Searching for HP9000/425 and HP Apollo A1630 docs
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The best resource for the series 300 and 400 is probably the NetBSD
port.  I think they cover most of the machines you mention.

	-Paul Bame


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= 
= Actually, this is pretty helpful.  Paul, would you consider licensing this
= under the GPL?
= 
= - Alex

Done.  Sources and HP-UX binary in the tarball at:

ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/som_relocate.tar.gz

Has anyone confirmed that the kernel which is started is getting good
data (stack, etc...) or are my kernels booting purely by accident?

	-Paul Bame


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] B132L console output
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>From grundler@cup.hp.com  Tue Oct 26 15:14:41 1999
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Subject: [parisc-linux] B132L console output


Hi all,

Sorry about the previous blank message.

This B132L I took this output from is unique.
It has a DEC PCI-PCI bridge stuck in it and our buswalk handles it fine.

This output is also interesting just so folks know whats
in a "basic" B-class box in case they don't have one.

Lastly, the "lasi serial #1 at 0xffe02000" not getting claimed
is becaused it's trying to talk to Dino's RS-232. lasi_alloc_irq()
handles it correctly by failing and this failure correctly results
in not claiming the device.

We don't have Dino RS-232 support in place yet. Another "TODO" item.
If anyone is feeling bored....

grant



Firmware Version  5.8

Duplex Console IO Dependent Code (IODC) revision 1

Memory Test/Initialization Completed

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------
      0      132 MHz    Active                 Functional          64 KB
                                                                    1 MB ext


  Available memory (bytes)    :   67108864 
  Good memory required (bytes):   67108864

  Primary boot path:    SESCSI.5.0
  Alternate boot path:  SESCSI.6.0
  Console path:         GRAPHICS(0)
  Keyboard path:        PS2

Processor is starting autoboot process.

To discontinue, press any key within 10 seconds.

Boot terminated.


------- Main Menu -------------------------------------------------------------

        Command                         Description
        -------                         -----------
        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration [<command>]       Access Configuration menu/commands
        INformation [<command>]         Access Information menu/commands
        SERvice [<command>]             Access Service menu/commands

        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command > bo    pa alt

  Alternate boot path:  SESCSI.6.0

Main Menu: Enter command > bo alt
Interact with IPL (Y, N, Q)?> n

Booting...
Boot IO Dependent Code (IODC) revision 153


HARD Booted.

------------------------------------------------------------------------------

PARISC/Linux Bootstrap Version 0.6 (non-interactive)
By Helge Deller & Jason Eckhardt
Built Wed Oct 20 15:37:11 PDT 1999 by grundler@rock

Reading parameters...done.

Loading PA-RISC/Linux Kernel...
SOM-Kernel:
aux_header_location: 00000080
som       : 00200080
exec_dfile: 000F2000
exec_dsize: 0008E000
exec_dmem : C00B7000
exec_tfile: 0004B000
exec_tsize: 000A6008
exec_tmem : C0010000
Code at 0x00010000, size=0x000A6008
Data at 0x000B7000, size=0x0008E000
BSS  at 0x00145000.

Transferring control to kernel. (At entry point 0x00010000)
The Kernel has started...
FP CCR was 0xc0, will be set to 0xc0
Model: Merlin L2 132 (9000/778/B132L) with 64 MB RAM.
CPU(s): 1 x PA7300LC (PCX-L2, Velociraptor) at 132.000000 MHz
Kernel-stack at C00BA000, Size 8192 kB.
Available virtual mapped memory starts at 0xC0174150 and ends at 0xC4000000.
Searching for devices in PDC firmware... a newer box...
Found devices:
1. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0, 0x0, 0x0, 0x0
2. Unknown device (4) at 0xfff8c000, versions 0x3c, 0x0, 0x89, 0x0, 0x80
3. Merlin L2 132 (9000/778/B132L) (0) at 0xfffbe000, versions 0x501, 0x0, 0x4, 0x0, 0x81
4. Merlin L2 132 (1) at 0xfffbf000, versions 0x60, 0x0, 0x9, 0x0, 0x0
5. Merlin 132 Core BA (11) at 0xffd00000, versions 0x3c, 0x0, 0x81, 0x0, 0x0
6. Merlin 132 Core RS-232 (10) at 0xffd05000, versions 0x3c, 0x0, 0x8c, 0x0, 0x0
7. Merlin 132 Core SCSI (10) at 0xffd06000, versions 0x3c, 0x0, 0x82, 0x0, 0x0
8. Merlin 132 Core Lan (802.3) (10) at 0xffd07000, versions 0x3c, 0x0, 0x8a, 0x0, 0x0
9. Merlin 132 Core Centronics (10) at 0xffd02000, versions 0x3c, 0x0, 0x74, 0x0, 0x0
10. Merlin 132 Core Audio (10) at 0xffd04000, versions 0x3c, 0x4, 0x7b, 0x0, 0x0
11. Merlin 132 Core PC Keyboard (10) at 0xffd08000, versions 0x3c, 0x0, 0x84, 0x0, 0x0
12. Merlin 132 Core PC Keyboard (10) at 0xffd08100, versions 0x3c, 0x0, 0x84, 0x0, 0x0
13. Merlin+ Wax BA (11) at 0xffe00000, versions 0x3a, 0x0, 0x8e, 0x0, 0x0
14. Merlin+ Wax EISA BA (11) at 0xfc000000, versions 0x3a, 0x0, 0x90, 0x0, 0x0
15. Merlin+ Wax HIL (10) at 0xffe01000, versions 0x3a, 0x0, 0x73, 0x0, 0x0
16. Merlin+ Wax RS-232 (10) at 0xffe02000, versions 0x3a, 0x0, 0x8c, 0x0, 0x0
17. Gecko GSC Core Graphics (10) at 0xf8000000, versions 0x16, 0x0, 0x85, 0x0, 0x0
18. Dino PCI Bridge (13) at 0xfff80000, versions 0x680, 0x3, 0xa, 0x0, 0x0
That's a total of 18 devices.
Linux version 2.2.12 (grundler@rock) (gcc version egcs-2.91.60 19981201 (egcs-1.1.1 release)) #338
 Tue Oct 26 12:44:28 PDT 1999
initrd: c00be000-c0115800
command_line: /stand/vmlinux HOME=/ TERM=LINUX console=tty

free_area_init: c017e000 c2000000
mem_map=c017e000
Calibrating delay loop... 175.64 BogoMIPS
Memory: 14532k available (664k kernel code, 1124k data, 64k init) [c0000000,c1000000]
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
Interrupt  3( 3+ 0)
Starting lasi serial #0 at 0xffd05000
lasi_alloc_irq(0xffd05000) = 26
ttyS00 at iomem 0xffd05800 (irq = 261) is a 16550A
Starting lasi serial #1 at 0xffe02000
lasi_alloc_irq(0xc0165938): No known LASI owns device at 0xffe02000
IRQ not found for lasi serial at 0xffe02000
Warning : device (10, 0x3a, 0x0, 0x8c, 0x0) NOT claimed by Lasi serial 712, 715 or similiar
Starting lasi lan at 0xffd07000
lasi_alloc_irq(0xffd07000) = 23
eth0: 82596 at 0xffd07000, 08 00 09 EF 74 14 IRQ 264.
82596.c:v1.0 15/07/98
eth0: lp at 0xc01d5140, lp->scb at 0xc01d5154
Initializing lasi keyboard port at 0xffd08000...
Initializing lasi mouse port at 0xffd08100...
Dino version 3.1 (bridge mode) found at 0xfff80000
Scanning PCI bus 0
Found a PCI device, and the vendor is 0x1011, device 0x0024
dino_fixup_bus(0xc01da0a0) bus 0 sysdata 0xc01d90e0
Found a PCI device, and the vendor is 0x1011, device 0x0019
Found a PCI device, and the vendor is 0x1000, device 0x000f
dino_fixup_bus(0xc01da120) bus 1 sysdata 0xc01d90e0
Scan for bus 0 returned 1
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
Starting kswapd v 1.2
setting up lasi keyboard
initialize_kbd: Keyboard failed self test
lasi_alloc_irq(0xffd08000) = 5
done!?!
Serial driver version 4.90 (1999-09-22) with no serial options enabled
pty: 256 Unix98 ptys configured
rd_init
RAM disk driver initialized:  16 RAM disks of 4096K size
Keyboard timed out[1]
Keyboard timeout[2]
Keyboard timed out[1]
Keyboard timeout[2]
scsi : 0 hosts.
scsi : detected total.
initrd_load
rd_load_image
opening initrd
identify_ramdisk_image
ext2sb->s_magic: 000053ef
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 350 blocks [1 disk] into ram disk... |/-\|/-\|/-\|/-\|/-\|/done.
initrd_release
VFS: Mounted root (ext2 filesystem).
Warning: unable to open an initial console.
It's for the PA-RISC!
It's executable!
It has an appropriate version!
The checksum checks out!
Well, it *smells* like a valid SOM executable
(start_brk) 40017000
(end_code) 0003c000
(start_code) 00001000
(end_data) 40008000
(start_stack) 2000002c
(brk) 40017000
Kernel panic: Attempted to kill the idle task!
In swapper task - not syncing


From - Thu Nov 08 21:10:59 2018
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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] B180L console output
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Xref: news.gmane.org gmane.linux.ports.parisc:6253


FYA,
Similar story but no DEC PPB.

grant


pa

  Primary boot path:    FWSCSI.6.0

  Alternate boot path:  PCI1.3.0

  Console path:         GRAPHICS(0)

  Keyboard path:        PS2

Main Menu: Enter command > io fv

ERROR:  Unknown command

Main Menu: Enter command > in fv

FIRMWARE INFORMATION

  Firmware Version:           5.8

   3840   

Main Menu: Enter command > bo alt
Interact with IPL (Y, N, Q)?> n

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.

------------------------------------------------------------------------------

PARISC/Linux Bootstrap Version 0.6 (non-interactive)
By Helge Deller & Jason Eckhardt
Built Wed Oct 20 15:37:11 PDT 1999 by grundler@rock

Reading parameters...done.

Loading PA-RISC/Linux Kernel...
SOM-Kernel:
aux_header_location: 00000080
som       : 00200080
exec_dfile: 000F2000
exec_dsize: 0008E000
exec_dmem : C00B7000
exec_tfile: 0004B000
exec_tsize: 000A6008
exec_tmem : C0010000
Code at 0x00010000, size=0x000A6008
Data at 0x000B7000, size=0x0008E000
BSS  at 0x00145000.

Transferring control to kernel. (At entry point 0x00010000)
The Kernel has started...
FP CCR was 0x0, will be set to 0xc0
Model: Merlin L2+ 180 (9000/778/B180L) with 128 MB RAM.
CPU(s): 1 x PA7300LC (PCX-L2, Velociraptor) at 180.000000 MHz
Kernel-stack at C00BA000, Size 8192 kB.
Available virtual mapped memory starts at 0xC01741F0 and ends at 0xC8000000.
Searching for devices in PDC firmware... a newer box...
Found devices:
1. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0, 0x0, 0x0, 0x0
2. Merlin+ 132 Dino RS-232 (10) at 0xfff83000, versions 0x22, 0x0, 0x8c, 0x0, 0x0
3. Merlin L2+ 180 (9000/778/B180L) (0) at 0xfffbe000, versions 0x504, 0x0, 0x4, 0x0, 0x81
4. Merlin+ L2 180 (1) at 0xfffbf000, versions 0x5a, 0x0, 0x9, 0x0, 0x0
5. Merlin+ 180 Core BA (11) at 0xffd00000, versions 0x3f, 0x0, 0x81, 0x0, 0x0
6. Merlin+ 180 Core RS-232 (10) at 0xffd05000, versions 0x3f, 0x0, 0x8c, 0x0, 0x0
7. Merlin+ 180 Core SCSI (10) at 0xffd06000, versions 0x3f, 0x0, 0x82, 0x0, 0x0
8. Merlin+ 180 Core Centronics (10) at 0xffd02000, versions 0x3f, 0x0, 0x74, 0x0, 0x0
9. Merlin+ 180 Core Audio (10) at 0xffd04000, versions 0x3f, 0x4, 0x7b, 0x0, 0x0
10. Merlin+ 180 Core PC Keyboard (10) at 0xffd08000, versions 0x3f, 0x0, 0x84, 0x0, 0x0
11. Merlin+ 180 Core PC Keyboard (10) at 0xffd08100, versions 0x3f, 0x0, 0x84, 0x0, 0x0
12. Gecko GSC Core Graphics (10) at 0xf8000000, versions 0x16, 0x0, 0x85, 0x0, 0x0
13. Dino PCI Bridge (13) at 0xfff80000, versions 0x680, 0x3, 0xa, 0x0, 0x0
That's a total of 13 devices.
Linux version 2.2.12 (grundler@rock) (gcc version egcs-2.91.60 19981201 (egcs-1.1.1 release)) #341
 Tue Oct 26 13:07:06 PDT 1999
initrd: c00be000-c0115800
command_line: /stand/vmlinux HOME=/ TERM=LINUX console=tty

free_area_init: c017e000 c2000000
mem_map=c017e000
Calibrating delay loop... 239.86 BogoMIPS
Memory: 14532k available (664k kernel code, 1124k data, 64k init) [c0000000,c1000000]
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
Interrupt  3( 3+ 0)
Starting lasi serial #0 at 0xfff83000
lasi_alloc_irq(0xc01657b8): No known LASI owns device at 0xfff83000
IRQ not found for lasi serial at 0xfff83000
Warning : device (10, 0x22, 0x0, 0x8c, 0x0) NOT claimed by Lasi serial 712, 715 or similiar
Starting lasi serial #0 at 0xffd05000
lasi_alloc_irq(0xffd05000) = 26
ttyS00 at iomem 0xffd05800 (irq = 261) is a 16550A
Initializing lasi keyboard port at 0xffd08000...
Initializing lasi mouse port at 0xffd08100...
Dino version 3.1 (bridge mode) found at 0xfff80000
Scanning PCI bus 0
Found a PCI device, and the vendor is 0x1000, device 0x000f
PCI: 00:08 BAR[0]==0xfd01
PCI: 00:08 BAR[1]==0xf0ffb000
PCI: 00:08 BAR[2]==0xf0ffc000
PCI: 00:08 BAR[3]==0x0
PCI: 00:08 BAR[4]==0x0
PCI: 00:08 BAR[5]==0x0
Found a PCI device, and the vendor is 0x1000, device 0x000f
PCI: 00:98 BAR[0]==0xfe01
PCI: 00:98 BAR[1]==0xf0ffd000
PCI: 00:98 BAR[2]==0xf0ffe000
PCI: 00:98 BAR[3]==0x0
PCI: 00:98 BAR[4]==0x0
PCI: 00:98 BAR[5]==0x0
Found a PCI device, and the vendor is 0x1011, device 0x0019
PCI: 00:a0 BAR[0]==0xff01
PCI: 00:a0 BAR[1]==0xf0fff000
PCI: 00:a0 BAR[2]==0x0
PCI: 00:a0 BAR[3]==0x0
PCI: 00:a0 BAR[4]==0x0
PCI: 00:a0 BAR[5]==0x0
dino_fixup_bus(0xc01da0a0) bus 0 sysdata 0xc01d90e0
Scan for bus 0 returned 0
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
Starting kswapd v 1.2
setting up lasi keyboard
initialize_kbd: Keyboard failed self test
lasi_alloc_irq(0xffd08000) = 5
done!?!
Serial driver version 4.90 (1999-09-22) with<4>Keyboard timed out[1]
Keyboard timeout[2]
Keyboard timed out[1]
Keyboard timeout[2]
 no serial options enabled
pty: 256 Unix98 ptys configured
rd_init
RAM disk driver initialized:  16 RAM disks of 4096K size
scsi : 0 hosts.
scsi : detected total.
initrd_load
rd_load_image
opening initrd
identify_ramdisk_image
ext2sb->s_magic: 000053ef
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 350 blocks [1 disk] into ram disk... |/-\|/-\|/-\|/-\|/-\|/done.
initrd_release
VFS: Mounted root (ext2 filesystem).
Warning: unable to open an initial console.
It's for the PA-RISC!
It's executable!
It has an appropriate version!
The checksum checks out!
Well, it *smells* like a valid SOM executable
(start_brk) 40017000
(end_code) 0003c000
(start_code) 00001000
(end_data) 40008000
(start_stack) 2000002c
(brk) 40017000
Kernel panic: Attempted to kill the idle task!
In swapper task - not syncing

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To: ",hppa-linux@thepuffingroup.com " <hppa-linux@thepuffingroup.com>,
        ",Jason Eckhardt " <jason@equator.com>
Subject: Betr.: [hppa-linux] Another bootstrap test
Date: Mon, 1 Mar 1999 12:49:00 +0100 
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     Hi all,
     
     this time it did not work on my 715/33 booted via rbootd:
     
     
     PARISC/Linux Bootstrap Version 0.1 (interactive) By Jason Eckhardt
     Built Fri Feb 26 17:19:38 CST 1999 by jason@bimbo
     
     IPL_DEBUG: Page zero parameters:
     P0_IMM_max_mem:          50331648 (48MB)
     P0_IMM_spa_size:         50331648
     P0_MC_cont_size:         50331648
     P0_MC_phys_size:         50331648
     P0_MC_ad_size:           50331648
     P0_BOOTCPU_mem_free:     0x00006400
     P0_BOOTCPU_hpa:          0xFFFBE000
     P0_BOOTCPU_pdc:          0xF0008988
     P0_BOOTCPU_10msec:       333335
     P0_COUT_iodc_io:         0x00006400
     P0_CIN_iodc_io:          0x00009A3C
     P0_BOOTDEV_iodc_io:      0x00009F4C
     P0_COUT_class:           0x00000009
     P0_CIN_class:            0x00000008
     P0_BOOTDEV_class:        0x00000001
     Reading parameters...done.
     (kernel size = 28672 bytes Loading kernel...
     
     Then it hangs ...
     
     
     Ulrich
     ---------------------------------------------
     Ulrich Strelow
     <ulrich.strelow@schering.de or
      ulrich_strelow@csi.com>
      Berlin, Germany
     

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From - Thu Nov 08 21:10:59 2018
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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] B132L console output
Date: Tue, 26 Oct 1999 18:54:24 -0400 (EDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:6254


On Tue, 26 Oct 1999, Grant Grundler wrote:
> This B132L I took this output from is unique.
> It has a DEC PCI-PCI bridge stuck in it and our buswalk handles it fine.

I have a couple of questions about this machine:

> Lastly, the "lasi serial #1 at 0xffe02000" not getting claimed
> is becaused it's trying to talk to Dino's RS-232. lasi_alloc_irq()
> handles it correctly by failing and this failure correctly results
> in not claiming the device.

We need to fix it so that it doesn't attempt to load the Lasi serial
driver when it's really a Dino RS 232.  That should be pretty easy to fix.

> Found devices:
> 1. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0, 0x0, 0x0, 0x0
> 2. Unknown device (4) at 0xfff8c000, versions 0x3c, 0x0, 0x89, 0x0, 0x80

Do you have any idea what that unknown device might be?

> 6. Merlin 132 Core RS-232 (10) at 0xffd05000, versions 0x3c, 0x0, 0x8c, 0x0, 0x0
> 16. Merlin+ Wax RS-232 (10) at 0xffe02000, versions 0x3a, 0x0, 0x8c, 0x0, 0x0

Which of those is actually connected?

> 11. Merlin 132 Core PC Keyboard (10) at 0xffd08000, versions 0x3c, 0x0, 0x84, 0x0, 0x0
> 12. Merlin 132 Core PC Keyboard (10) at 0xffd08100, versions 0x3c, 0x0, 0x84, 0x0, 0x0
> 15. Merlin+ Wax HIL (10) at 0xffe01000, versions 0x3a, 0x0, 0x73, 0x0, 0x0

How about those?

- Alex


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] hack to use HPUX boot loader
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Xref: news.gmane.org gmane.linux.ports.parisc:6255

> Has anyone confirmed that the kernel which is started is getting good
> data (stack, etc...) or are my kernels booting purely by accident?

Probably not.  I applied som_relocate on the kernel that I built today and
it booted through the RAM disk phase on my 735 up to the following point:

bad address 0000001c (code 15)

Kernel panic: bad address

In swapper task - not syncing

Since I am booting with hpux, the early walk through the hardware
configuration scrolls off the screen.

I have had to patch the Makefile to build with gcc 2.95.1 and without GECKO.
Can someone install this patch in the cvs source?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


*** Makefile.orig	Mon Oct 25 20:48:29 1999
--- Makefile	Tue Oct 26 18:48:31 1999
***************
*** 91,97 ****
  # standard CFLAGS
  #
  
! CFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -mdisable-fpregs -fwritable-strings 
  
  # use '-fno-strict-aliasing', but only if the compiler can take it
  CFLAGS += $(shell if $(CC) -fno-strict-aliasing -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-fno-strict-aliasing"; fi)
--- 91,97 ----
  # standard CFLAGS
  #
  
! CFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -mdisable-fpregs # -fwritable-strings 
  
  # use '-fno-strict-aliasing', but only if the compiler can take it
  CFLAGS += $(shell if $(CC) -fno-strict-aliasing -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-fno-strict-aliasing"; fi)
***************
*** 115,121 ****
  FILESYSTEMS	=fs/filesystems.a
  NETWORKS	=net/network.a
  DRIVERS		=drivers/block/block.a \
- 		 drivers/gecko/gecko.a	\
  		 drivers/char/char.a 
  #	         drivers/misc/misc.a
  LIBS		=$(TOPDIR)/lib/lib.a
--- 115,120 ----
***************
*** 207,212 ****
--- 206,215 ----
  DRIVERS := $(DRIVERS) drivers/net/irda/irda_drivers.a
  endif
  
+ ifeq ($(CONFIG_GECKO),y)
+ DRIVERS := $(DRIVERS) drivers/gecko/gecko.a
+ endif
+ 
  include arch/$(ARCH)/Makefile
  
  .S.s:
***************
*** 235,241 ****
  	@echo "If this fails, you're not using GNU nm! "
  	@echo "Make sure you have it in your path before HPUX nm."
  	$(NM) --version > /dev/null 2>&1
! 	$(NM) -td vmlinux |awk '/init_task_union/ { n = int($2); t = int(n/8192); t *= 8192; if (t >= n) printf t-n ; else printf n-(t-8192)}' FS=\| > init_task.alignment
  	@if [ `cat init_task.alignment` -ne "0" ]; then \
  		echo init_task_union alignment is `cat init_task.alignment`: rebuilding...; \
  		( cd arch/parisc/kernel ; rm -f init_task.o ; make EXTRA_CFLAGS=-DALIGN init_task.o ); \
--- 238,244 ----
  	@echo "If this fails, you're not using GNU nm! "
  	@echo "Make sure you have it in your path before HPUX nm."
  	$(NM) --version > /dev/null 2>&1
! 	$(NM) -td vmlinux |awk '/init_task_union/ { n = int($$1); t = int(n/8192); t *= 8192; if (t >= n) printf t-n ; else printf n-(t-8192)}' FS=\| > init_task.alignment
  	@if [ `cat init_task.alignment` -ne "0" ]; then \
  		echo init_task_union alignment is `cat init_task.alignment`: rebuilding...; \
  		( cd arch/parisc/kernel ; rm -f init_task.o ; make EXTRA_CFLAGS=-DALIGN init_task.o ); \


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Subject: [parisc-linux] seek Temp Control Register conventions
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Are the conventions for usage of the Temp Control Registers documented somewhere?
(So far, I've found comments about CR30 and CR31 in arch/parisc/kernel/interruption.S.)

Also, same question for Space Register usage conventions.

Thanks,

Frank Rowand


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] B132L console output
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Alex deVries wrote:
> 
> On Tue, 26 Oct 1999, Grant Grundler wrote:
> > This B132L I took this output from is unique.
> > It has a DEC PCI-PCI bridge stuck in it and our buswalk handles it fine.
> 
> I have a couple of questions about this machine:
> 
> > Lastly, the "lasi serial #1 at 0xffe02000" not getting claimed
> > is becaused it's trying to talk to Dino's RS-232. lasi_alloc_irq()
> > handles it correctly by failing and this failure correctly results
> > in not claiming the device.
> 
> We need to fix it so that it doesn't attempt to load the Lasi serial
> driver when it's really a Dino RS 232.  That should be pretty easy to fix.

Ok.

> 
> > Found devices:
> > 1. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0, 0x0, 
>   0x0, 0x0
> > 2. Unknown device (4) at 0xfff8c000, versions 0x3c, 0x0, 0x89, 0x0, 0x80
> 
> Do you have any idea what that unknown device might be?

Address map says "Zalon". That's the GSC front end for NCR c720 board.
I think from ioscan.B132L its:
ext_bus     1  8/12  c720 CLAIMED     INTERFACE    GSC Fast/Wide SCSI Interface

iodc data for 8/12 device is:
	3 192 0 132 0 0 137 128 153 0 1 0 197 233 0 2

You'll have to figure out if that matches...I'm not up to it right now.
C720 driver normally says "Built-in" if some PDC call says it's a built-in.
So I don't really know what to make of it.

> > 6. Merlin 132 Core RS-232 (10) at 0xffd05000, versions 0x3c, 0x0, 0x8c, 0x0
>   , 0x0
> > 16. Merlin+ Wax RS-232 (10) at 0xffe02000, versions 0x3a, 0x0, 0x8c, 0x0, 0
>   x0
> 
> Which of those is actually connected?

I would think both.
But I was wrong about dino exporting it's RS-232 on this box.
The B180 does export Dino's RS-232 from 8/0/63.
But I was right in that Lasi only exports one of them.


> > 11. Merlin 132 Core PC Keyboard (10) at 0xffd08000, versions 0x3c, 0x0, 0x8
>   4, 0x0, 0x0
> > 12. Merlin 132 Core PC Keyboard (10) at 0xffd08100, versions 0x3c, 0x0, 0x8
>   4, 0x0, 0x0
> > 15. Merlin+ Wax HIL (10) at 0xffe01000, versions 0x3a, 0x0, 0x73, 0x0, 0x0
> 
> How about those?

Again, based on the HPA, I'd say 11 and 12 are the PS/2 ports off Lasi.
15 is most likely off the WAX chip (EISA bus adapter.)
I don't know if B132L has EISA slots (haven't looked inside one in
a long time), but HP-UX reports "EISA Bus Adapter" at 8/20/5.
So I would assume it does.
Note that the B180 does NOT. And thus doubt the A180 would either.

cheers,
grant

> 
> - Alex
> 

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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Subject: Re: [parisc-linux] Searching for HP9000/425 and HP Apollo A1630 docs
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On Mon, 25 Oct 1999, Martin Schulze wrote:

> I have aquired two HP9000/425dl (processor: 68040/25) machines on
> which I'd like to run Linux.  I'm working on it with a friend who's
> got a similar machine, HP Apollo A1630 model 425t and a HP Apollo
> A1630 model 400t with 68030 processor.  The machines have these
> framebuffers: A1416A, A1924 and A1630.  At the moment we get the
> machine boot but the kernel dies afterwards, for sure.

There is a Apollo Linux port already in existance.  I know it covers
pre-HP Apollo machines including machines with a 68040 and an ISA bus
as well as some HP Apollo machines.  The link can be found off of
http://www.linux-m68k.org.

-- 
David Kennedy
The Puffin Group


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So, I spent all evening trying to figure out _exactly_ which
differences between Chris Beard's tree and cvs-head were preventing us
from getting to a shell.  Here's what I found:

- The drivers/gecko/lasi.c changes made between 1999/10/19 and
1999/10/25 made the console unbearably slow.  At first glance I
suspect we're not handling interrupts properly, but I haven't looked
at it in any sort of detail.  I'll get to it soon, unless someone else
does first.

- I reverted someone else's one-line change to drivers/char/serial.c
that was causing the console to barf when sash tried to display
something.  This was ultimately the only hard problem to track down.

- We need ``argv_init[1] = NULL;'' in init/main.c, at least for the
moment, so that we don't get sash's usage screen.

- There are problems with the IODC console.  If I set console=tty and
boot with IODC, I get: 

Attempting to execute '/sbin/init'

It's for the PA-RISC!
It's executable!
It has an appropriate version!
The checksum checks out!
Well, it *smells* like a valid SOM executable
(start_brk) 40017000
(end_code) 0003c000
(start_code) 00001000
(end_data) 40008000
(start_stack) 20000028
(brk) 40017000
Kernel panic: Attempted to kill the idle task!
In swapper task - not syncing

I've not even begun to debug this.  If you want to just get to a
prompt, turn off the IODC console and set ``console=ttyS0'' in
arch/parisc/boot/boot_code/ipl_c.c

Aside from that, using the ramdisk that Chris made (on
puffin.external.hp.com), you should be able to boot to a sash prompt,
at least on the A180.  I've not tried it on any other machine; I'll
probably try it first thing tomorrow.

Good luck--

-Phil


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First off, many thanks to everyone who worked hard to get us these base
parts completed, especially Philipp, Helge and Grant.

Next, many thanks to Thomas, Chris and especially Phil for not just
getting seperate trees working, but one in CVS that's easily reproducable
and which we can move forward with.

Obviously there's a lot of stuff to be cleared up, but these problems
don't see too difficult. 

- lasi.c needs to have some of the interrupt management cleared up so that
we have a reasonable serial console speed.  From what Phil says it sounds
pretty easy.  I'm not exaggerating when I say it takes 15 minutes to get
to a shell on my 712/80.

- serial console code (as mentioned by Phil)

- overal console management needs to be handled properly.  This includes
finishing up the STI interface, the keyboard controller, and making it so
that the system chooses a console based on the firmware console path
settings.  This seems pretty reasonable.

- it sounds like we might be at a point now where getting networking isn't
so unreasonable.  We have the base of the tulip and i82596 controllers
going.

In any case, we can now safely say that 'Yes, PA-RISC Linux now boots to a
shell'.  Congrats, everyone.

- Alex


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= 
= Has anyone confirmed that the kernel which is started is getting good
= data (stack, etc...) or are my kernels booting purely by accident?
= 

Phillip looked over some boot messages after being booted with the
hpux boot loader and blessed them, so things appear to be working well.

How about a COMMAND LINE?

If anyone wants to investigate a bit and work on head.S, it looks like
when launched from the current hpux boot loader that the args
passed to the kernel are

	int argc, char *argv[], char *envp[],

with some slightly bizzare stuff in the "environment", of possible
interest:

	env[2] - load address *of the boot loader itself*
	env[3] - size *of the boot loader itself*

argc will always be a low number >= 1.  If you had told ISL:

	ISL> hpux /boot/vmlinux a b c

then argc would supposedly be 4 and argv[2], for example, would be "b".
I suspect the argv[] should be copied to somewhere safe.

Note that this is very different from the statment in head.S:

         *      %arg3(=%r23) holds HALF(!) of the size of the BSS-Segment

			    -Paul Bame


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Ok, as of this instant, if you checkout a fresh kernel from CVS, and hit
[enter] all the way through the ``make config'' and use
ramdisk.bin-19991019-workingsash from the FTP site, you should get to sash
prompt when you boot the kernel image.

You will also feel the pain of the serial interrupts.

This has been verified to /work/ on an A180C.

Chris


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From: R Scott Holbrook (HP-DESK: hp4000/UX) <rsh@scoot.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] B132L console output
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Grant and Alex,

>>> 6. Merlin 132 Core RS-232 (10) at 0xffd05000, versions 0x3c, 0x0, 0x8c, 0x0, 0x0
>>> 16. Merlin+ Wax RS-232 (10) at 0xffe02000, versions 0x3a, 0x0, 0x8c, 0x0, 0x0
>> 
>> Which of those is actually connected?

> I would think both.
> But I was wrong about dino exporting it's RS-232 on this box.
> The B180 does export Dino's RS-232 from 8/0/63.
> But I was right in that Lasi only exports one of them.

The firmware will report only the serial ports that are actually
connected.  Thus, this box does have both of the serial ports.
On these types of boxes (B132, B132+ B160, B180), LASI always
provides the first serial port.  The second port, however, can
come from different chips depending on whether or not WAX is
present.  Some of these boxes had an EISA bus as an option.
If WAX is present, it provides the 2nd serial port.  Otherwise,
DINO provides the 2nd serial port.

>> > 15. Merlin+ Wax HIL (10) at 0xffe01000, versions 0x3a, 0x0, 0x73, 0x0, 0x0

> 15 is most likely off the WAX chip (EISA bus adapter.)
> I don't know if B132L has EISA slots (haven't looked inside one in
> a long time), but HP-UX reports "EISA Bus Adapter" at 8/20/5.
> So I would assume it does.
> Note that the B180 does NOT. And thus doubt the A180 would either.

This box has a WAX chip, which means that the system has an EISA slot.
EISA was an optional feature on some of these platforms.  Some B180
systems have EISA, others do not.

If the system has EISA, it has WAX and therefore has HIL support.
However, there is no HIL connector on these systems.  There is a
set of jumpers on the system board that connect the HIL signals to
2 unused pins on one of the PS/2 connectors and a special external
box that plugs into the PS/2 port and has a place to plug in the
HIL connector.  This is used by an OEM that uses the B132/B160/B180
platform but requires HIL (for some special keyboards).

Scott Holbrook / rsh@fc.hp.com
Unix Development Lab

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Subject: RE: [hppa-linux] Another bootstrap test
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I apologize for my ignorance, can sbdy give me a few pointers on what I need
to do to load the bootstrap on a 712/100 with no floppy?

Dorin Mandachi



-----Original Message-----
From: Jason Eckhardt [mailto:jason@equator.com]
Sent: Friday, February 26, 1999 5:52 PM
To: hppa-linux@thepuffingroup.com
Subject: [hppa-linux] Another bootstrap test



I would appreciate it if a few people would try out this updated bootstrap
code on their systems (same directions as last time). This is basically
complete, it loads and executes a "dummy" kernel. It has only been tested on
a C160 so far.
This is a debug version and prints a lot of noise. It would be useful if
you would capture the output and email it to me. Or at least send the
numbers 
for:
 P0_IMM_max_mem, P0_BOOTCPU_10msec, P0_COUT_class, P0_CIN_class, and
 P0_BOOTDEV_class.

If it works completely, you'll see a message from the dummy kernel image
folloed by "It is now safe to reboot." Let me know if it makes it that far
on your system.

Thanks, Jason Eckhardt.




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Subject: Re: [parisc-linux] B132L console output
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Scott,
thanks for the additional notes.

R Scott Holbrook wrote:
...
> If the system has EISA, it has WAX and therefore has HIL support.
> However, there is no HIL connector on these systems.  There is a
> set of jumpers on the system board that connect the HIL signals to
> 2 unused pins on one of the PS/2 connectors and a special external
> box that plugs into the PS/2 port and has a place to plug in the
> HIL connector.

Just curious. Is this the same "Keyboard Adapter Module" used on 715's?
(no part number - has HIL, PS/2 Mouse, and PS/2 Keyboard "outputs")

thanks,
grant

> This is used by an OEM that uses the B132/B160/B180
> platform but requires HIL (for some special keyboards).
> 
> Scott Holbrook / rsh@fc.hp.com
> Unix Development Lab


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Grant,
> thanks for the additional notes.

>> If the system has EISA, it has WAX and therefore has HIL support.
>> However, there is no HIL connector on these systems.  There is a
>> set of jumpers on the system board that connect the HIL signals to
>> 2 unused pins on one of the PS/2 connectors and a special external
>> box that plugs into the PS/2 port and has a place to plug in the
>> HIL connector.

> Just curious. Is this the same "Keyboard Adapter Module" used on
> 715's? (no part number - has HIL, PS/2 Mouse, and PS/2 Keyboard
> "outputs")

I think so.  If you can get the hversion and sversion of the adapter
module on the 715, I can tell you for sure.

Scott


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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: [parisc-linux] iodc console patch
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To get a sash prompt on my 715/33 I need the patch below. Even if this
patch isn't release quality something like that is needed to get the
iodc console going.

Because I still have some problems with the first few printed lines, I
haven't checked it into cvs. Hope it helps others as well. Ohh and changing
"console=ttyS0" to "console=tty" in boot_code/ipl_c.c is required, too.

Thomas.

Index: arch/parisc/kernel/pdc_cons.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/pdc_cons.c,v
retrieving revision 1.24
diff -u -r1.24 pdc_cons.c
--- arch/parisc/kernel/pdc_cons.c	1999/10/27 18:38:21	1.24
+++ arch/parisc/kernel/pdc_cons.c	1999/10/27 21:44:25
@@ -146,6 +146,8 @@
 	memcpy(&PAGE0->mem_kbd, &PAGE0->mem_cons, sizeof(PAGE0->mem_cons));
 
     /* register the pdc console */
+#ifndef CONFIG_IODC_CONSOLE
     register_console(&pdc_cons);
+#endif
 #endif
 }
Index: arch/parisc/kernel/setup.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/setup.c,v
retrieving revision 1.70
diff -u -r1.70 setup.c
--- arch/parisc/kernel/setup.c	1999/10/25 16:39:29	1.70
+++ arch/parisc/kernel/setup.c	1999/10/27 21:44:25
@@ -655,6 +655,12 @@
 extern asmlinkage void __init start_kernel(void);
 extern char _bss_start;	/* the very first BSS-byte, defined in head.S */
 
+#ifdef CONFIG_VT
+#ifdef CONFIG_IODC_CONSOLE
+extern void iodc_con_init(void);
+#endif
+#endif
+
 __initfunc(void start_parisc(unsigned long new_memory_start, 
 			     char *bootloader_command_line))
 {
@@ -672,6 +678,12 @@
 		}
 	}
 	pdc_console_init();
+#ifdef CONFIG_VT
+#ifdef CONFIG_IODC_CONSOLE
+	conswitchp = &prom_con;
+	iodc_con_init();
+#endif
+#endif
 
 	printk("The Kernel has started...\n");
 
@@ -726,21 +738,10 @@
 	start_kernel(); 	/* now we start our kernel ! */
 }
 
-#ifdef CONFIG_VT
-#ifdef CONFIG_IODC_CONSOLE
-extern void iodc_con_init(void);
-#endif
-#endif
 
 __initfunc(void setup_arch(char **cmdline_p,
 	unsigned long * memory_start_p, unsigned long * memory_end_p))
 {
-#ifdef CONFIG_VT
-#ifdef CONFIG_IODC_CONSOLE
-	iodc_con_init();
-#endif
-#endif

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Hi all,
Just some nits which seemed to be not so good about our current
implementation of IRQ regions.  I'm really enthusiastic about the
current implementation in general but these are some minor problems.

In the next couple of weeks, I'll take the time to write up how
I think IRQ regions work for parisc-linux.  I think most kernel
folks can understand how IRQs work and how PA Risc is different
from x86.

Some definitions from asm-parisc/irq.h:
o NR_IRQS is defined as 1024	(total number of virtual IRQs)
o NR_IRQ_REGS is 32		(total number of IRQ regions)
o IRQ Regions are defined to have max 256 IRQ's per region.

Problem #1: NR_IRQS is used to build arrays by drivers/char/random.c
  and drivers/char/serial.c.  For parisc, those arrays will be mostly empty.
  Not a good use of memory. The problem is a combination of what I
  see as a poorly written driver (for parisc at least) and our
  implementation of IRQ regions.

Problem #2: (256 * 32) is much greater than 1024.
  If serial.c or random.c uses any virtual IRQ in region 4 or higher,
  they will index into hyperspace.  (Or as I've read recently somewhere:
  "we only rely on a well-defined subset of undefined behaviour".)

  This is a bug . We will see it on any box with more than 1 processor
  and 3 Host PCI bus adapters (chips like Dino).  My A180 has a processor,
  Lasi, and 2 Dino's. That's four regions (0-3). If I had another
  card-mode Dino instead of my add-on PCI 100BT card installed, I'd
  be toast.

Proposal for #1/#2:
  Until serial.c and random.c *are* changed, can we use the following
  definitions in asm-parisc/irq.h?

	#define IRQ_REG_SHIFT	5		/* use 6 for __LP64__ */
	#define IRQ_REG_MASK		((1<<IRQ_REG_SHIFT)-1)
	#define IRQ_FROM_REGION(reg)	((reg)<<IRQ_REG_SHIFT)
	#define IRQ_REGION(irq)		((irq)>>IRQ_REG_SHIFT)
	#define IRQ_OFFSET(irq)		((irq) & IRQ_REG_MASK)

	#define NR_IRQ_REGS	16
	#define NR_IRQS		IRQ_FROM_REGION(NR_IRQ_REGS)

[soapbox on]
I'm not happy about seeing the mechanism to encode/decode virtual
IRQ's in asm-parisc/irq.h. It's visible to and embedded in drivers.
My preference is to hide this in arch/parisc/kernel/irq.c and only
define the two constants drivers know about - NR_IRQ_REGS and NR_IRQS in
the asm/irq.h.
[soapbox off]


Problem #3:
  request_irq() doesn't automatically unmask/enable the IRQ.
  After looking at several other architectures (sparc, x386),
  it seems like request_irq() should call enable_irq().

  That's part of the reason why lasi_barked() isn't getting
  called for the serial driver. The IMR registers needs to
  have serial device's bit cleared in order to enable
  the interrupt line in lasi. "enable_irq()" should result
  in a call to lasi_enable_irq() and that will clear the bit.

  Currently, in CVS, lasi_enable_irq() doesn't exist. And that's
  another problem.  I've written one but want to try it out before
  committing code.  (My quality of code lately has stunk because I
  wasn't able to test the code. I usually can fix my own bugs pretty
  quickly since I know the type of things I typically do wrong.)

thanks,
grant


From - Thu Nov 08 21:11:00 2018
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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] hack to use HPUX boot loader
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Am Wed, 27 Oct 1999 schrieb Paul Bame:
> = 
> = Has anyone confirmed that the kernel which is started is getting good
> = data (stack, etc...) or are my kernels booting purely by accident?
> = 
> 
> Phillip looked over some boot messages after being booted with the
> hpux boot loader and blessed them, so things appear to be working well.
> 
> How about a COMMAND LINE?
> 
> If anyone wants to investigate a bit and work on head.S, it looks like
> when launched from the current hpux boot loader that the args
> passed to the kernel are
> 
> 	int argc, char *argv[], char *envp[],
> 
> with some slightly bizzare stuff in the "environment", of possible
> interest:
> 
> 	env[2] - load address *of the boot loader itself*
> 	env[3] - size *of the boot loader itself*
> 
> argc will always be a low number >= 1.  If you had told ISL:
> 
> 	ISL> hpux /boot/vmlinux a b c
> 
> then argc would supposedly be 4 and argv[2], for example, would be "b".
> I suspect the argv[] should be copied to somewhere safe.
> 
> Note that this is very different from the statment in head.S:
> 



>          *      %arg3(=%r23) holds HALF(!) of the size of the BSS-Segment

!!!! Please, dont expect the above line to be valid at all !!!!!!!!!
It was just one of my bad investigations and seemed to be true in my
stupid tests. As already said in other mails: Its hard without any
documentation !
(If someone want, please delete it from the source !!)

Helge.


> 
> 			    -Paul Bame
> 


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Subject: Re: [parisc-linux] hack to use HPUX boot loader
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> 
> Am Wed, 27 Oct 1999 schrieb Paul Bame:
> > = 
> > = Has anyone confirmed that the kernel which is started is getting good
> > = data (stack, etc...) or are my kernels booting purely by accident?
> > = 
> > 
> > Phillip looked over some boot messages after being booted with the
> > hpux boot loader and blessed them, so things appear to be working well.

I find it very strange that the kernel is being linked to start at
0xc0010000.  It's not your average machine that has this much physical
memory.  I have recently been in the bowels of hpux and it certainly isn't
linked in this strange way.  It is linked and loaded into low physical
memory.  Interrupts are first handled without address translation and
then most switch to virtual.  If this kind of relocation is needed,
can't it be done in virtual mode with a space register mapping?  The
other major issue is how to impliment shared memory.  Under hpux, it
is always in the 3rd quadrant.  This breaks mmap usage in many apps.

Paul's hack prevents one from using kernel symbols when debugging with
a symbolic debugger.  I think this is a rather useful feature to have.

Comments?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Paul Bame <bame@debian.fc.hp.com>
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Subject: Re: [parisc-linux] hack to use HPUX boot loader
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Xref: news.gmane.org gmane.linux.ports.parisc:6270

= > 
= > Am Wed, 27 Oct 1999 schrieb Paul Bame:
= > > = 
= > > = Has anyone confirmed that the kernel which is started is getting good
= > > = data (stack, etc...) or are my kernels booting purely by accident?
= > > = 
= > > 
= > > Phillip looked over some boot messages after being booted with the
= > > hpux boot loader and blessed them, so things appear to be working well.
= 
= I find it very strange that the kernel is being linked to start at
= 0xc0010000.  It's not your average machine that has this much physical
= memory.

Linux on i386 is also relocated to around 3Gb.  In both cases,
Linux is physically loaded near 0Gb, and then physical memory is
virtually mapped to show up starting at 3Gb.  Until the VM is
enabled you're right, using those 3Gb addresses won't work in a
debugger.

= Comments?

Sure, that's the way it's done in Linux 2.2.x right now and it
is the kernel machine-independent code assumes that scheme or a
simliar one is in effect so we can't really change it.  I don't
know what 2.3 has done.

	-P


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Subject: Re: [parisc-linux] hack to use HPUX boot loader
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> I find it very strange that the kernel is being linked to start at
> 0xc0010000.  It's not your average machine that has this much physical

Logical or physical ?



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> 
> > I find it very strange that the kernel is being linked to start at
> > 0xc0010000.  It's not your average machine that has this much physical
> 
> Logical or physical ?

Physical, at least when loading with hpux.  LDFLAGS are "-R 0xc0010000
-N -e stext".  I know at one time the link was being done at 0x10000.
Does anyone know why this was changed?

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Ed June <buggz@america.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] bios passwd override procedure ?
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How does one override the bios passwd?
I have receieved a machine set w/ a bios passwd, and, the bios is set up
to disable the escape key.
Argh !
Is there some secret key-combo to break-in the bios ?
Or, do I have to have hp re-flash the bios ?
Oh, the machine is a 715/64...


--

 Ed June

 buggz@america.net
 Linux: An open choice for free people worldwide.


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Subject: Re: [hppa-linux] Another bootstrap test
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Here's a late report on a 720/50 booted via rbootd:

IPL_DEBUG: Page zero parameters:
  P0_IMM_max_mem:       67108864 (64MB)
  P0_IMM_spa_size:      67108864
  P0_MC_cont_size:      67108864
  P0_MC_phys_size:      67108864
  P0_MC_ad_size:        67108864
  P0_BOOTCPU_mem_free:  0x00006400
  P0_BOOTCPU_hpa:       0xFFFBE000
  P0_BOOTCPU_pdc:       0xF0007768
  P0_BOOTCPU_10msec:    500000
  P0_COUT_iodc_io:      0x00006400
  P0_CIN_iodc_io:       0x00009A3C
  P0_BOOTDEV_iodc_io:   0x0000AB88
  P0_COUT_class:        0x00000009
  P0_CIN_class:         0x00000008
  P0_BOOTDEV_class:     0x00000001
Reading parameters...done.
(kernel size = 28672 Loading kernel...

And then it hangs.

Steve

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Xref: news.gmane.org gmane.linux.ports.parisc:6274

= > 
= > > I find it very strange that the kernel is being linked to start at
= > > 0xc0010000.  It's not your average machine that has this much physical
= > 
= > Logical or physical ?
= 
= Physical, at least when loading with hpux.  LDFLAGS are "-R 0xc0010000
= -N -e stext".  I know at one time the link was being done at 0x10000.

There isn't any concept of physical versus virtual
location in the HP linker that I'm aware of, though there might be somthing
hidden in an extension record.

The hpux boot loader assumes the text relocation address should also be
used as a physical load address.  In the case of Linux, relocated
at 3Gb, this clearly makes no sense.  It works fine for HP-UX which
is relocated to, and runs in, low physical memory.

= Does anyone know why this was changed?

I assume the earlier linking was purely experimental, since I've been
told (and haven't confirmed myself) that Linux 2.2.x essentially needs
to be relocated at 3Gb (or some other big value) because it assumes
it's available from the page tables of every process.  If
Linux was relocated at addresses near zero, this would result in
user programs having to start at addresses larger than the amount
of memory used by the kernel, which would be weird.

	-P


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> If
> Linux was relocated at addresses near zero, this would result in
> user programs having to start at addresses larger than the amount
> of memory used by the kernel, which would be weird.
> 
>         -P

Does someone knows how linux will use the hppa quadran (space) for both
kernel-mode and user-mode for 32bit processor (and 64bit processors running
narrow), this somewhat influance mmap(), or more generally the virtual adress
space usage/limitation.

If someone envisioned the hppa 64 bits wide it would be nice to know as well
the layout and space convention too, this would help to see how narrow binary
could run on a wide kernel.

Phi


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> The hpux boot loader assumes the text relocation address should also be
> used as a physical load address.  In the case of Linux, relocated
> at 3Gb, this clearly makes no sense.  It works fine for HP-UX which
> is relocated to, and runs in, low physical memory.
> 
> = Does anyone know why this was changed?
> 
> I assume the earlier linking was purely experimental, since I've been
> told (and haven't confirmed myself) that Linux 2.2.x essentially needs
> to be relocated at 3Gb (or some other big value) because it assumes
> it's available from the page tables of every process.  If
> Linux was relocated at addresses near zero, this would result in
> user programs having to start at addresses larger than the amount
> of memory used by the kernel, which would be weird.

Can't user programs be mapped with sr7 to OS public code while the kernel
runs in non-virtual mode in low physical memory?  When the kernel is
in virtual mode most of it might run with low virtual addresses.  I am
not an expert in Linux, so it is unclear to me how much of the system
needs to be visible to user apps.  However, I think for som apps we
want to achieve an app environment essentially identical to hp-ux so
hp compiled apps will run under pa linux.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> 
> > If
> > Linux was relocated at addresses near zero, this would result in
> > user programs having to start at addresses larger than the amount
> > of memory used by the kernel, which would be weird.
> > 
> >         -P
> 
> Does someone knows how linux will use the hppa quadran (space) for both
> kernel-mode and user-mode for 32bit processor (and 64bit processors running
> narrow), this somewhat influance mmap(), or more generally the virtual adress
> space usage/limitation.
> 
> If someone envisioned the hppa 64 bits wide it would be nice to know as well
> the layout and space convention too, this would help to see how narrow binary
> could run on a wide kernel.

Docs for 32 & 64 bit runtime environments can be found at
<http://www.software.hp.com/STK/toc.html>.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] hack to use HPUX boot loader
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Paul Bame wrote:
> 
> = >
> = > > I find it very strange that the kernel is being linked to start at
> = > > 0xc0010000.  It's not your average machine that has this much physical
> = >
> = > Logical or physical ?
> =
> = Physical, at least when loading with hpux.  LDFLAGS are "-R 0xc0010000
> = -N -e stext".  I know at one time the link was being done at 0x10000.
> 
> There isn't any concept of physical versus virtual
> location in the HP linker that I'm aware of, though there might be somthing
> hidden in an extension record.
> 
> The hpux boot loader assumes the text relocation address should also be
> used as a physical load address.  In the case of Linux, relocated
> at 3Gb, this clearly makes no sense.  It works fine for HP-UX which
> is relocated to, and runs in, low physical memory.
> 
> = Does anyone know why this was changed?
> 
> I assume the earlier linking was purely experimental, since I've been
> told (and haven't confirmed myself) that Linux 2.2.x essentially needs
> to be relocated at 3Gb (or some other big value) because it assumes




> it's available from the page tables of every process.  If
> Linux was relocated at addresses near zero, this would result in
> user programs having to start at addresses larger than the amount
> of memory used by the kernel, which would be weird.
> 
>         -P

Not so weird.  It's just a virtual address, not a physical address.

-Frank


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Subject: Re: [parisc-linux] hack to use HPUX boot loader
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John David Anglin wrote:

> 
> Docs for 32 & 64 bit runtime environments can be found at
> <http://www.software.hp.com/STK/toc.html>.

I'd like the same but for linux not hp-ux, I'd like to know how the VAS will
be used on linux.

Phi
--
mailto:phi@hpfrcu81.france.hp.com
WTEC Project. Kernel debugging tools


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= John David Anglin wrote:
= 
= > 
= > Docs for 32 & 64 bit runtime environments can be found at
= > <http://www.software.hp.com/STK/toc.html>.
= 
= I'd like the same but for linux not hp-ux, I'd like to know how the VAS will
= be used on linux.

We should probably ask prumpf when he returns.

	-P


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Subject: [parisc-linux] serial.c and request_irq()
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I've most of today trying to interrupts under LASI working
and half of that was trying to understand drivers/char/serial.c.
My basic problem is serial.c has four references to request_irq()
and none of them are being invoked. I have a printk() in
request_irq() which isn't showing up.
Anyone understand why not?

Otherwise I'll just add a bunch more printk's to serial.c and
figure out why now...sure could use a debugger at this point.

thanks,
grant


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Subject: [parisc-linux] booting on PA2.0 machines
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So I think we've determined that PA2.0 booting problems are related to the
PDC_BTLB call which isn't implemented in 2.0 processors.  

My thought would be to try such a call, and if it fails, then configure
cache lines in a way specific to 2.0 processors.  Am I right?

How should we be configuring this?

We've now got some puffins and HP people with 2.0 boxes, so it'd be really
nice to get these boxes booting.

- Alex

-- 
Alex deVries <adevries@thepuffingroup.com>
Vice President Engineering
The Puffin Group



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From: Frank Rowand <frank_rowand@hp.com>
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Subject: Re: [parisc-linux] booting on PA2.0 machines
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Alex deVries wrote:
> 
> So I think we've determined that PA2.0 booting problems are related to the
> PDC_BTLB call which isn't implemented in 2.0 processors.
> 
> My thought would be to try such a call, and if it fails, then configure
> cache lines in a way specific to 2.0 processors.  Am I right?

If the system is a PA 1.1 system then PDC_BLOCK_TLB() should be used.
(PDC_MODEL(Return info), arch_rev reports 1.0, 1.1, or 2.0.)  If the
system is a PA 2.0 system then large pages should be specified in the
TLB entries.

> How should we be configuring this?

Just wait for a TLB miss and insert an entry for a very large number of pages
(architected sizes include 4, 16, 64, 256 Kbyte, 1, 4, 16, 64 Mbyte).  See
the PA-RISC 2.0 Architecture book by Kane, pp. 3-9 thru 3-14, F-1 thru F-5.

Just as a side note, you can't just insert a block TLB entry and expect it to
exist forever; you have to be able to handle a TLB fault for the address
range and re-insert the entry (or switch to normal entries).  See the last
page of the PDC_BLOCK_TLB() description for the explanation of this.

> We've now got some puffins and HP people with 2.0 boxes, so it'd be really
> nice to get these boxes booting.
> 
> - Alex

You've just hit the first layer of the onion.

-Frank

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From: "Strelow, Ulrich" <Ulrich.Strelow@Schering.DE>
To: ",'hppa-linux@thepuffingroup.com' " <hppa-linux@thepuffingroup.com>,
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Subject: Betr.: RE: [hppa-linux] Another bootstrap test
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------ =_NextPart_000_01BE6557.1254A0AE
Content-Type: text/plain

     Hello Dorin,
     
     sorry for the late answer. You have two possiblities to test the 
     bootstrap program on your 712/100:
     
     1. If you have a second disk on that machine, you can follow 
     Jason's original instructions. I have attached them to this mail 
     in case you have not been on the mailing list at that time.
     
     2. The easiest way is to use rbootd. For this test you need a 
     linux-x86 machine connect to the 712/100 via LAN: 
     
     Download rbootd from 
     ftp://sod.res.cmu.edu/pub/parisc/tools/RPMS/rbootd-2.0-2.i386.rpm
     and install with rpm -i rbootd-2.0-2.i386.rpm.
     
     Create directory /export/hp/rbootd/ and copy BOOTSTRA.BIN to this 
     directory as vmlinux.
     
     Edit /etc/rbootd.conf and insert the MAC-address of the ethernet 
     card of your 712/100 in this file. In case you don't know that, 
     you can use HP-UX's landiag(1M).
     
     Start rbootd on the linux-x86 machine.
     
     Reboot the 712/100, stop the automatic boot process, and let the 
     machine search for potential boot devices. You should get at 
     least two possibilities: your hp-ux disk and the lan-boot linux 
     machine. Select the lan-boot machine and the bootstrap test 
     should be loading.
     
     Greetings
     Ulrich
     ---------------------------------------------
     Ulrich Strelow
     <ulrich.strelow@schering.de or
     ulrich_strelow@csi.com>
     Berlin, Germany
     
     
     ____________________________ Antwort-Abtrennung 
     _______________________________
     Betreff: RE: [hppa-linux] Another bootstrap test
Autor:  ,Mandachi, Dorin (Omaha) [SMTP:Dorin.Mandachi@cox.com] bei
BE2183
Datum:    01.03.99 22:26


I apologize for my ignorance, can sbdy give me a few pointers on what I
need 
to do to load the bootstrap on a 712/100 with no floppy?
     
Dorin Mandachi
     
     
     


------ =_NextPart_000_01BE6557.1254A0AE
Content-Type: text/plain;
	name="bootstra.txt"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="bootstra.txt"

Autor:  ,Jason Eckhardt [SMTP:jason@equator.com] bei BE2183
Datum:    18.02.99  00:09
Priorit=E4t: Standard
Blindkopie: Ulrich Strelow bei BE0103_1
An: ,hppa-linux@puffingroup.com [SMTP:hppa-linux@puffingroup.com] bei =
BE2183
An: ,jason@equator.com [SMTP:jason@equator.com] bei BE2183
Betreff: [hppa-linux] bootstrap test
------------------------------- Nachrichteninhalt =
------------------------------
Greetings HPPA hacks:
I have enclosed a simple bootstrap test binary for HPPA/Linux. At this =
point,=20
it is not much more than a "hello world" type program but shows that we
can get a bootstrap going.
I would be grateful if one or two of you would test it on your systems. =
I have=20
tested it on my C160 which is a PA2.0-based system and would like to =
make
sure it works correctly on PA1.1 systems before doing more work.
    =20
Instructions:
1. uudecode the enclosed "bootstrap.bin" binary.
2. Write bootstrap.bin to a unused harddisk in raw mode (at the =
beginning
   of the media). On my HPUX system, I use
   "dd if=3Dbootstrap.bin of=3D/dev/rdsk/c0t5d0" to write the boot =
image to=20
   my scratch disk. (You might also be able to burn a CDROM instead, =
but=20
   I haven't tried it).
   Be careful and make sure this is a scratch drive -- or at least =
backup=20
   the sectors that will be overwritten (about 40Kbytes) and restore =
them=20
   later!
3. Reboot the system. Stop the autoboot and ask the ROM to boot from
   the scratch disk (I just set this disk up as the "alternate boot =
path"=20
   and then use "bo alt" at the boot prompt).
4. Hopefully you will then see a message "HPPA/Linux Bootstrap" which =
means
   it worked. There will also be a line printed "CPU x: (yyyyyyyy)". =
This=20
   is your CPUID.
    =20
Your feedback would be appreciated, i.e. did it work or not on your =
system.=20
Please send the CPU line as well.
    =20
Thanks very much for your time, Jason.
    =20
    =20
    =20
----------------------------------------------------------------------=20
To unsubscribe: send e-mail to hppa-linux-request@puffingroup.com with=20
`unsubscribe' as the subject.

------ =_NextPart_000_01BE6557.1254A0AE--

-------------------------------------------------------------------------
To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
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From - Thu Nov 08 21:11:02 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] udelay accuracy
Date: Fri, 29 Oct 1999 17:56:40 -0700 (PDT)
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FYA,
Here's some data on the accuracy of udelay().
Test was read cr16, udelay(x), read cr16, print cr16 delta.
I collected this from my A180.
Numbers on the right of the ":" is the cr16 delta.

udelay test 10 :  2023 1896 1896 1896 1896 1896 1896 1896 1896 1896
udelay test 20 :  3731 3681 3681 3681 3681 3681 3681 3681 3681 3681
udelay test 30 :  5507 5472 5472 5472 5472 5472 5472 5472 5472 5472
udelay test 100 :  18028 17967 17967 17967 17967 17967 17967 17967 17967 17967
udelay test 200 :  35885 35815 35815 35815 35815 35815 35815 35815 35815 35815
udelay test 300 :  53665 53665 53665 53665 53665 53665 53665 53665 53665 53665
udelay test 1000 :  178615 178615 178615 178615 178615 178615 178615 178615 178615 178615
udelay test 2000 :  357115 357115 357115 357115 357115 357115 357115 357115 357115 357115
udelay test 3000 :  535615 538451 535615 535615 535615 535615 535615 535615 535615 535615

Expected output for "180Mhz" machine:
	udelay(10) 1800
	udelay(20) 3600
	...
	udelay(3000) 540000

The difference between the first invocation and successive might be a problem.
I don't know what the expected accuracy is.
If +- 10% is ok, we are there.

grant

ps. thanks to ftr for helping figure out the expected values.
    page zero (0x38c) contains the number of cycles per 10ms
    for every box. This can be accessed from the A180
    service menu: "mr 0x38c 2"


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] udelay accuracy
Date: Sat, 30 Oct 1999 02:07:42 +0100 (BST)
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> 	udelay(3000) 540000
> 
> The difference between the first invocation and successive might be a problem.
> I don't know what the expected accuracy is.
> If +- 10% is ok, we are there.

Its generally good enough. Certainly on PC type hardware which is sloppy anyway
If its ever an issue just bump the estimate by 10% on all udelays to be sure 8)


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] xchg implementation
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As you can read below, I've been thinking about the implementation
of xchg again.  For those who are unfamiliar with this, it is used to
atomically swap the contents of a register with a location in memory.
It is defined to be atomic wrt other CPUs and interrupts on the same CPU.
PA-RISC's only atomic operation is load-and-zero.  A large proportion
of the cases where xchg is used, it is with zero, and we can use the
load-and-zero instruction.

This is a uniprocessor optimisation of the xchg() case where it's _not_
exchanging with zero.  What I need is a spare CR register.  As far as I
can see from the comments, CR28-30 are currently reserved; leaving CRs
24, 25 and 31 available.  Unless someone's using one of them without
documenting it somewhere...?  That really does need to be written down
somewhere.

----- Forwarded message from Matthew Wilcox <Matthew.Wilcox@genedata.com> -----

Date: Sun, 31 Oct 1999 19:02:34 +0100
From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
To: Ralf Baechle <ralf@uni-koblenz.de>
Cc: Matthew Wilcox <Matthew.Wilcox@genedata.com>,
        Keith Owens <kaos@ocs.com.au>, linux-kernel@vger.rutgers.edu
Subject: Re: FD array expansion problem
X-Mailer: Mutt 0.95.3i
In-Reply-To: <19991031010842.H15510@uni-koblenz.de>; from Ralf Baechle on Sun, Oct 31, 1999 at 01:08:42AM +0200

On Sun, Oct 31, 1999 at 01:08:42AM +0200, Ralf Baechle wrote:
> On Sat, Oct 30, 1999 at 03:42:17PM +0200, Matthew Wilcox wrote:
> 
> > We don't have ll/sc instructions or compare-and-swap on pa-risc.
> > I'd really like to be able to do this without disabling interrupts,
> > but I don't think there's a way.
> 
> Actually there is a neat way for uniprocessor MIPSes to implement this.
> The two registers k0 and k1 are reserved for use of the kernel, for example
> in interrupt processing.  All exception handles will destroy the content
> of these registers and set it to a value != NULL which allows to implement
> an atomic increment for uniprocessors like:
> 
> 	move	k0, zero
> 1:	lw	old, addr
> 	sw	new, addr
> 	bnez	k0, 1b
> 
> Dunno if that'd hold for HPPA as well.

I don't think that works.  Look:

main code	interrupt
set k0 to zero
load A from addr
store B at addr
		set k0 to zero
		load B from addr
		store C at addr
		return (i assume this makes k0 non-zero)
k0 is non-zero, so loop again
load C from addr
store B at addr

And you've lost the original A.  I came up with a similar scheme while
taking a long walk today (many people seem to prefer the shower for their
good ideas.  I find Japanese stroll gardens are ideal, and a nice long
walk is almost as good.)

The idea is to flag whether we're in the middle of an xchg operation in
a register such as k0, then have the interrupt handler's exit routine fix
it up:

move k0, one
lw A, addr
sw B. addr
move k0, zero

would then be the typical non-interrupted case.

The modified interrupt code looks like:

int xchging = (k0 == 1);

... normal irq code ...

if (!xchging)
	return;
if (instruction we will return to is a store)
	return to addr - 4;
return;

This should work, and have a minimal cost per interrupt.
Now to find out whether we have a suitable register on PA-RISC..

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson

----- End forwarded message -----

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: LaMont Jones <lamont@security.hp.com>
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Subject: Re: [parisc-linux] xchg implementation
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> This is a uniprocessor optimisation of the xchg() case where it's _not_
> exchanging with zero.  What I need is a spare CR register.  As far as I
> can see from the comments, CR28-30 are currently reserved; leaving CRs
> 24, 25 and 31 available.  Unless someone's using one of them without
> documenting it somewhere...?  That really does need to be written down
> somewhere.

IIRC, CR24 and 25 are readable from user space (not writable), and can be
quite useful for thread specific data, thread id, etc...  It might do to
leave them available for such a use.

lamont


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From: Paul Bame <bame@debian.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] _end symbol in parisc linux?
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Anybody know how to get PA-Linux to have an _end symbol like
most other programs, including Intel Linux?

	-Paul Bame


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On Mon, Nov 01, 1999 at 02:03:05PM -0700, LaMont Jones wrote:
> > This is a uniprocessor optimisation of the xchg() case where it's _not_
> > exchanging with zero.  What I need is a spare CR register.  As far as I
> > can see from the comments, CR28-30 are currently reserved; leaving CRs
> > 24, 25 and 31 available.  Unless someone's using one of them without
> > documenting it somewhere...?  That really does need to be written down
> > somewhere.
> 
> IIRC, CR24 and 25 are readable from user space (not writable), and can be
> quite useful for thread specific data, thread id, etc...  It might do to
> leave them available for such a use.

You're thinking of CR26 and 27 (ref: Kane's PA-RISC 2.0 Architecture,
page 2-17).  CR31 _is_ used, I didn't read carefully enough:

$ find arch/parisc/ -name \*.[chS] |xargs grep ctl |grep 31
arch/parisc/kernel/interruption.S:      mtctl           29,31
arch/parisc/kernel/interruption.S:      mtctl           29,31
arch/parisc/kernel/interruption.S:      mtctl           29,31
arch/parisc/kernel/syscall.S:   mfctl   31, %r27                        ; get the kernel dp

cr26,27 are used, but only in a debug macro in head.S.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: LaMont Jones <lamont@security.hp.com>
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Subject: Re: [parisc-linux] xchg implementation
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> > IIRC, CR24 and 25 are readable from user space (not writable), and can be
> > quite useful for thread specific data, thread id, etc...  It might do to
> > leave them available for such a use.
> You're thinking of CR26 and 27 (ref: Kane's PA-RISC 2.0 Architecture,
> page 2-17).  CR31 _is_ used, I didn't read carefully enough:

And the worst of it is that I knew that.  Sigh...

thanks for the clarification,
lamont


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> Anybody know how to get PA-Linux to have an _end symbol like
> most other programs, including Intel Linux?
>
>         -Paul Bame

Define the symbol as:

extern void *_end;

and the linker will sort it out for you. See the HP-UX man page for
'end'.
I think everyone is linking with the HP-UX ld, but it works for gcc ld
too.

Cheers

Donald

-------------------------------------------------------
Donald Scobbie
Hewlett Packard Ltd.        email:  dscobbie@sqf.hp.com
Telecom Systems Division    Phone:  +44 131 331 6149



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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Subject: [parisc-linux] getdents
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I'm trying to implement the HPUX getdents syscall so that we can `-ls'
in sash.  Unfortunately, there appears to be no manual page on this.
Could someone let me know exactly what libc is expecting getdents
to return?  So far I have deduced the following:

It takes three parameters; a file descriptor, an address and a length
in bytes.  On return, that block of memory is filled with as many of
the following struct as will fit:

struct hpux_dirent {
	ino_t	d_ino;
	short	d_reclen;
	short	d_namlen;
	char	d_name[1];
};

But checking through the other compatibility implementations of getdents;
there is so much variation about what else might be returned in that
block that I would prefer to not speculate further unless I have to.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Matt Wilcox committed some code that I know he's unable to test, so I'm
mailing the bug report here.

The first is that building the kernel kernel will result in:

ld: Unsatisfied symbols:
   hpux_brk (code)

so I just commented out the only reference to it, and now I end up with:

(start_code) 00001000
(end_data) 40008000
(start_stack) 20000028
(brk) 40017000

PSW  : 0004f80b  GR 1 : 40006928  GR 2 : 00016f5f  GR 3 : 40007128  
GR 4 : 40016314  GR 5 : 40006928  GR 6 : 00002001  GR 7 : 00000020  
GR 8 : 40001511  GR 9 : 00000000  GR10 : 00000050  GR11 : bc0fd569  
GR12 : 000043ff  GR13 : 00004400  GR14 : 00004800  GR15 : 43f02aa9  
GR16 : 00004000  GR17 : 00000000  GR18 : 00000c00  GR19 : 00000001  
GR20 : 00000001  GR21 : 40019000  GR22 : ffffff05  GR23 : 00000000  
GR24 : 00000000  GR25 : ffffffff  GR26 : ffffffff  GR27 : 40007128  
GR28 : 4001830c  GR29 : 40018ffc  GR30 : 20000780  GR31 : 00033323  
SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000  
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  
IAOQ : 00016f7b 00016f7f

bad address 40018ffc (code 15)
Kernel panic: bad address

In swapper task - not syncing

And that is it.

- Alex

ps.  All the puffins will be out of town in Montreal on Wednesday to
attend/speak at a conference and see live puffins.

-- 
Alex deVries <adevries@thepuffingroup.com>
Vice President Engineering
The Puffin Group

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Hello,

I installed MkLinux for PA-RISC  to my HP712/60.
The console cannot be displayed with my HP712.
Is the console displayed in your HP712?

--
Takeshi Maruyama. Iwata-city.
maru@hans.or.jp


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
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Subject: [parisc-linux] Congratulations, remarks and questions
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Hi all,

first of all congratulations for the success of
getting to the shell prompt. I hope that you have
celebrated this event accordingly. I finally made it
too, I build a kernel for my 715/33 which boots until
the sash-prompt. To document the necessary steps for
others, here is my recipe:

1. get a recent kernel source (I took 19991031)
2. apply the patch from Thomas Bogendoerfer to
arch/parisc/kernel/setup.c (see his mail iodc console
patch). The patch to pdc_cons.c seems to be no longer
necessary.
3. get ramdisk.bin-19991019-workingsash and copy it to
/usr/src/linux as ramdisk.bin.
4. run make config and change the following options:
CONFIG_IODC_CONSOLE=y
CONFIG_NETDEVICES=n 
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=n
5. run make dep, make vmlinux, make Image
6. boot the kernel with the "isl" option and change
the command line from ttyS0 to tty (or change the
console parameter of DEFAULT_COMMANDLINE in
arch/parisc/boot/boot_code/ipl_c.c).  

Now some remarks: I have noticed the development of
the I/O-drivers (GSC/Gecko, DINO, LASI, PCI) in the
past to make them stable, so that they can be included
even if the machine does not have these features. This
is also true for my 715/33 and the 19991031 kernel
tree. However, saying no to CONFIG_GECKO_DINO,
CONFIG_GECKO_LASI and CONFIG_PCI leads to missing
symbols inb and outb during the link stage which are
defined in arch/parisc/kernel/pci.c. And saying no to
CONFIG_GECKO is impossible because gecko.a is defined
in DRIVERS in the central Makefile without a
surrounding ifdef. I don't think that this is a
problem right now, but I would like to mention these
points anyway.

My first try was to build the kernel without
specifying CONFIG_NETDEVICES=n. This leads to the
following problem: the kernel stops booting with these
messages:  

Starting lasi lan at 0xf0826000
lasi_alloc_irq(0xc0127968): No LASI found in system
yet
IRQ not found for lasi lan at 0xf0826000
Warning : device (10, 0xb, 0x0, 0x72, 0x0) NOT claimed
by Lasi i82596(???) LAN 700 or similiar (old)

Maybe this is of interest to someone, too.

Now the questions: the kernel boots to the
sash-prompt, but no keyboard input is possible
(neither the HIL-keyboard, nor the keyboard from the
serial terminal I was using). Is this because of the
missing support for the ASP chip of the 715/33 ? Are
all devices (HIL, SCSI and LAN) connected via that
chip ? And finally: has HP found and published the
docs of that chip so that someone is able to write the
supporting routines ?

Greetings from Berlin
Ulrich

__________________________________________________
Do You Yahoo!?
Bid and sell for free at http://auctions.yahoo.com


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On Tue, Nov 02, 1999 at 11:14:33PM -0500, Alex deVries wrote:
> 
> Matt Wilcox committed some code that I know he's unable to test, so I'm
> mailing the bug report here.
> 
> The first is that building the kernel kernel will result in:
> 
> ld: Unsatisfied symbols:
>    hpux_brk (code)
> 
> so I just commented out the only reference to it, and now I end up with:

You commented it out?  Aaahhh.. that was definitely the wrong thing to do.
The reference is in the middle of the syscall table, so all subsequent
syscalls were misnumbered.

I've changed it to call sys_brk instead; I'm not quite sure why I had
thought it would need to call a different function, brk looks identical
to me on both OSes.

If someone would be generous enough to test the current CVS tree for me,
I'd be grateful.  It may well be that sash is now able to perform `-ls'.

> ps.  All the puffins will be out of town in Montreal on Wednesday to
> attend/speak at a conference and see live puffins.

I'm jealous.  27 days to go.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: Re: [parisc-linux] getdents
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On Wed, 3 Nov 1999, Matthew Wilcox wrote:

> struct hpux_dirent {
> 	ino_t	d_ino;
> 	short	d_reclen;
> 	short	d_namlen;
> 	char	d_name[1];
> };

Shouldn't that be d_name[256]?

Anyhow, here's how I think it works on HP-UX (somebody please correct
me if I'm wrong!):

There is a struct dirent, which applications know about, and then
there is a struct __dirent32 and a struct __dirent64, depending on
whether this is a 32- or 64-bit process.  sizeof(ino_t) is the
only difference between the 32- and 64-bit structures.
Let's just call this struct __dirent.

Now, this struct __dirent is just struct dirent, with some additional
stuff at the front.  The trouble is, I don't know what's tacked onto
the front of it, yet...  I'm looking.  If anybody knows, please
tell me!!!

Anyhow, here's the prototype:
    int getdents(int fd, char *buf, unsigned int count);
It fills in buf with struct __dirent entries.  libc then turns each
struct __dirent into a struct dirent for user consumption by just
returning &(__dirent->d_ino).

I realize this isn't much use, without a concrete definition of
the extra field(s) of struct __dirent, but I'll get one tomorrow,
I expect.  (I'm probably just looking in the wrong place or something.)

- Kevin Vajk
  <kvajk@ricochet.net>



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OK, here we go:

   struct __dirent {
      uint64_t __d_off;                 /* "magic cookie" */
      _T_INO_T __d_ino;                 /* file number of entry */
      short    __d_reclen;              /* length of this record */
      short    __d_namlen;              /* length of string in d_name */
      char     __d_name[_MAXNAMLEN + 1];/* name must be no longer than this */
   };

Note that sizeof(_T_INO_T) varies depending on your system's bit-ness,
so this is really two structure definitions.

The d_off structure member is an offset for that directory entry.  I
don't know if anybody in user-space ever uses it; I doubt it.

- Kevin Vajk
  <kvajk@ricochet.net>



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On Wed, Nov 03, 1999 at 05:12:57PM -0800, Kevin Vajk wrote:
> 
> On Wed, 3 Nov 1999, Matthew Wilcox wrote:
> 
> > struct hpux_dirent {
> > 	ino_t	d_ino;
> > 	short	d_reclen;
> > 	short	d_namlen;
> > 	char	d_name[1];
> > };
> 
> Shouldn't that be d_name[256]?

It's OK, that's only used as an offset to tell the kernel where to put the
string.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Xref: news.gmane.org gmane.linux.ports.parisc:6299

On Wed, Nov 03, 1999 at 05:29:30PM -0800, Kevin Vajk wrote:
> 
> 
> OK, here we go:
> 
>    struct __dirent {
>       uint64_t __d_off;                 /* "magic cookie" */
>       _T_INO_T __d_ino;                 /* file number of entry */
>       short    __d_reclen;              /* length of this record */
>       short    __d_namlen;              /* length of string in d_name */
>       char     __d_name[_MAXNAMLEN + 1];/* name must be no longer than this */
>    };
> 
> Note that sizeof(_T_INO_T) varies depending on your system's bit-ness,
> so this is really two structure definitions.
> 
> The d_off structure member is an offset for that directory entry.  I
> don't know if anybody in user-space ever uses it; I doubt it.

I've done the following:

struct hpux_dirent {
	long	d_off_pad; /* we only have a 32-bit off_t */
	long	d_off;
	ino_t	d_ino;
	short	d_reclen;
	short	d_namlen;
	char	d_name[1];
};

I think that's the right way round to put the padding for a big-endian
machine.  Yes, I know it ought to be done properly, but we don't have
a put_user() that will cope with an 8-byte quantity yet.  Any volunteers?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Grant Grundler <grundler@cup.hp.com>
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Matthew Wilcox wrote:
...
> I've done the following:
> 
> struct hpux_dirent {
> 	long	d_off_pad; /* we only have a 32-bit off_t */
> 	long	d_off;
> 	ino_t	d_ino;
> 	short	d_reclen;
> 	short	d_namlen;
> 	char	d_name[1];
> };
> 
> I think that's the right way round to put the padding for a big-endian
> machine.

Mathew,
Sorry, it doesn't look right to me.
I not sure the following is "right" either but "looks more right":

#ifdef __LP64__
	long d_off;
#else
	int d_off_pad;
	int d_off;
#endif

The problem is the offset for the d_off has to be different for
32-bit applications than it will be for 64-bit applications.
gcc has to behave the same way if we want binary compatibility.
In "wide-mode" HP-UX compiler uses 64-bit long/pointer and int
remains 32-bit.  Ergo the name "LP64".

devresource.hp.com has a "HP-UX 64-bit Porting and Transition Guide,
June 1998" in the Document library. It's an interesting reference on
HP-UX kernel interacts with 32/64-bit binaries and has some interesting
gotchas.

hope this helps,
grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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In theory, most of these changes are, I think, already in the kernel tree
in CVS.

On Wed, 3 Nov 1999, Ulrich Strelow wrote:
> My first try was to build the kernel without
> specifying CONFIG_NETDEVICES=n. This leads to the
> following problem: the kernel stops booting with these
> messages:  
> 
> Starting lasi lan at 0xf0826000
> lasi_alloc_irq(0xc0127968): No LASI found in system
> yet
> IRQ not found for lasi lan at 0xf0826000
> Warning : device (10, 0xb, 0x0, 0x72, 0x0) NOT claimed
> by Lasi i82596(???) LAN 700 or similiar (old)

The problem here is that the i82596 expects to be connected to a Lasi, not
the ASP thing that's in a 715.  We have no docs on ASP, so we can't really
do anything about this until later.

> Now the questions: the kernel boots to the
> sash-prompt, but no keyboard input is possible
> (neither the HIL-keyboard, nor the keyboard from the
> serial terminal I was using). Is this because of the
> missing support for the ASP chip of the 715/33 ? 

This is because:
- right now no terminal we have supports a keyboard
- we don't have a HIL keyboard driver because of ASP

> Are
> all devices (HIL, SCSI and LAN) connected via that
> chip ? And finally: has HP found and published the
> docs of that chip so that someone is able to write the
> supporting routines ?

ASP support is something we might be able to get from openbsd or mklinux
source, I haven't checked.  It's on our list of documentation we want from
HP though.

- Alex


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I've had a busy evening implementing the hpux syscalls required to make
some of the sash commands work.  The following commands work:

cd
-chgrp
-chmod
-chown
help
-ls
-mkdir
-pwd
-touch
-where

-mount is known to not work.  I need to speak to prumpf about why this is.
-umount probably works, but without -mount, that's hard to test :-)
Ditto -sync.  Maybe some others work.  If there's any sash command you
particularly want to work which doesn't yet, drop me a mail.

many thanks to Grant for all his help this evening.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: [parisc-linux] Okay, I give up.
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How do I extract an sversion and hversion out of ioscan -F output?

For instance:

pa:wsio:F:F:F:0:0:0:ext_bus:c720:8/12:1 49 0 132 0 0 137 128 7 0 0 0 91 62 0 2 :0:root.ccio.c720:c720:CLAIMED:INTERFACE:GSC add-on Fast/Wide SCSI Interface:0

There doesn't seem to be a consistant way to parse it.

- Alex
-- 
Alex deVries <adevries@thepuffingroup.com>
Vice President Engineering
The Puffin Group

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Takeshi Maruyama wrote:
> 
> Hello,
> 
> I installed MkLinux for PA-RISC  to my HP712/60.
> The console cannot be displayed with my HP712.
> Is the console displayed in your HP712?

     It works on my HP 712/60, but it's very slow.

								- Paul

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From: Paul Bame <bame@debian.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] exec() problem
Date: Fri, 05 Nov 1999 19:55:49 -0700
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This is rumored to be a known problem.  Since I've seen it a lot recently
and am going on vacation, here's what I know in case it helps.  The problem
can manifest on one machine and not another with the same bits.  It can
come and go as the size of code in arch/parisc/kernel changes.  The
problem shows in the boot like this:

    Attempting to execute '/sbin/init'

    PSW  : 0004000b  GR 1 : c0128800  GR 2 : c0029390  GR 3 : 00000000
    GR 4 : 00000000  GR 5 : ffffffff  GR 6 : 00000000  GR 7 : c0092708
    GR 8 : c0fdba20  GR 9 : c00924c8  GR10 : 00000080  GR11 : 0000000a
    GR12 : 00000000  GR13 : 00000000  GR14 : 00000001  GR15 : c00927c8
    GR16 : c0100000  GR17 : c00292e0  GR18 : c0092720  GR19 : 00000000
    GR20 : c0128a00  GR21 : a0000024  GR22 : 00000000  GR23 : c012bc7c
    GR24 : c00927c8  GR25 : 00000000  GR26 : c0092708  GR27 : c008e000
    GR28 : 00000000  GR29 : 00000000  GR30 : c0092a00  GR31 : c0039914
    SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000
    SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000
    IAOQ : c0028e5c c0028e60

    bad address a000002c (code 15)
    Kernel panic: bad address

adb on the IAOQ address says:

    do_generic_file_read+16C:       LDW             8(r21),r19

which is consistent with the value in r21 (a0000024).  This is
inside a call which I believe is called eventually from do_execve()
called within init/main.c:init().  I didn't track down do_execve().

	-Paul Bame


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From: Grant Grundler <grundler@cup.hp.com>
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Alex deVries wrote:
> How do I extract an sversion and hversion out of ioscan -F output?
> 
> For instance:
> 
> pa:wsio:F:F:F:0:0:0:ext_bus:c720:8/12:1 49 0 132 0 0 137 128 7 0 0 0 91 62 0 
>   2 :0:root.ccio.c720:c720:CLAIMED:INTERFACE:GSC add-on Fast/Wide SCSI Interf
>   ace:0

1) Use ":" as a field seperator (that's probably obvious)

2) field 1 indicates the structure/contents of field 12.
   "pa" says field 12 is IODC data (16 bytes).
   "pci" says field 12 is PCI vendor/product (4 bytes).

3) IODC data format should be documented in IOACD or somewhere.
   PCI isn't. It's the PCI vendor/product ID from config space.

Short (but cryptic) answer is first three "nibbles" (4-bit quantities)
are HV model. Next nibble is HV rev.  SV rev is the high order nibble
of the 5th byte (iodc[4]). SV model the following 5 nibbles.

So printing the values in hex should make them easier to eye-ball
and correlate to either hardware.c entries or PCI output.


> There doesn't seem to be a consistant way to parse it.

The "pa" vs. "pci" probably makes it look inconsistent.

cheers,
grant

> 
> - Alex
> -- 
> Alex deVries <adevries@thepuffingroup.com>
> Vice President Engineering
> The Puffin Group
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] pgtable.h:acc_rights()
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Why is acc_rights written like this?

#define acc_rights(pte)       \
        (((pte) & _PAGE_EXEC) ? \
                (((pte) & _PAGE_RW) ? \
                        acc_r(3,acc_pl(pte),acc_pl(pte)) : \
                        acc_r(3,acc_pl(pte),acc_pl(pte))) : \
                (((pte) & _PAGE_RW) ? \
                        acc_r(1,acc_pl(pte),acc_pl(pte)) : \
                        acc_r(1,acc_pl(pte),acc_pl(pte))))

According to the PA-1.1 Architecture manual I have here, if the page isn't
writable, the MSB should be clear, like so:

#define acc_rights(pte)       \
        (((pte) & _PAGE_EXEC) ? \
                (((pte) & _PAGE_RW) ? \
                        acc_r(3,acc_pl(pte),acc_pl(pte)) : \
                        acc_r(2,acc_pl(pte),acc_pl(pte))) : \
                (((pte) & _PAGE_RW) ? \
                        acc_r(1,acc_pl(pte),acc_pl(pte)) : \
                        acc_r(0,acc_pl(pte),acc_pl(pte))))

of course, it should be rewritten to look much cleaner.  In fact,
by renumbering the bits, we could get that for free (as long as we put
a big fat warning above the #defines of _PAGE_* to warn that the
constants are in that order for hardware efficiency).
              
Anyway, I'm after a spare bit in the pte for _PAGE_GATEWAY.  As I
understand it (from the mk_pte() macro), there are 12 bits available,
only 8 of which are used, so I can nobble one of them to mark a page
as being a gateway, right?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Grant Grundler wrote:
> 
> Alex deVries wrote:
> > How do I extract an sversion and hversion out of ioscan -F output?
> >
> > For instance:
> >
> > pa:wsio:F:F:F:0:0:0:ext_bus:c720:8/12:1 49 0 132 0 0 137 128 7 0 0 0 91 62 0
> >   2 :0:root.ccio.c720:c720:CLAIMED:INTERFACE:GSC add-on Fast/Wide SCSI Interf
> >   ace:0
> 
> 1) Use ":" as a field seperator (that's probably obvious)
> 
> 2) field 1 indicates the structure/contents of field 12.
>    "pa" says field 12 is IODC data (16 bytes).
>    "pci" says field 12 is PCI vendor/product (4 bytes).
> 
> 3) IODC data format should be documented in IOACD or somewhere.
>    PCI isn't. It's the PCI vendor/product ID from config space.


See "IODC Data Bytes" in the IODC chapter of the IOACD (it's the first section
after the introduction).


> Short (but cryptic) answer is first three "nibbles" (4-bit quantities)
> are HV model. Next nibble is HV rev.  SV rev is the high order nibble
> of the 5th byte (iodc[4]). SV model the following 5 nibbles.
> 
> So printing the values in hex should make them easier to eye-ball
> and correlate to either hardware.c entries or PCI output.
> 
> > There doesn't seem to be a consistant way to parse it.
> 
> The "pa" vs. "pci" probably makes it look inconsistent.
> 
> cheers,
> grant
> 
> >
> > - Alex
> > --
> > Alex deVries <adevries@thepuffingroup.com>
> > Vice President Engineering
> > The Puffin Group
> >
> > ---------------------------------------------------------------------------
> > To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> > `unsubscribe' as the subject.
> >
> 
> Grant Grundler
> Unix Developement Lab
> +1.408.447.7253
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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From: Philipp Rumpf <prumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] pgtable.h:acc_rights()
Date: Sat, 6 Nov 1999 20:51:25 +0100
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To: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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"From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>"
Xref: news.gmane.org gmane.linux.ports.parisc:6308

> Why is acc_rights written like this?

See my commit message.  Basically that works around the "pages mapped read-only
when they should be read-write" problem Thomas reported.

> of course, it should be rewritten to look much cleaner.  In fact,
> by renumbering the bits, we could get that for free (as long as we put
> a big fat warning above the #defines of _PAGE_* to warn that the
> constants are in that order for hardware efficiency).

We are still looking for the optimal layout of the 12 _PAGE_* bits we have.
The word we need to translate to looks like this:

0  1  2  3  4  5  ... 11 12 13 ... 31
X  X  T  D  B  \__ ____/  U \_______/
             access rights  access id

X - don't care (it looks like)
T - page reference trap
D - dirty
B - break
U - uncacheable

access rights is

 5  6  7  8  9 10 11
\______/ \___/ \___/
type      PL1   PL2

000: read-only
001: read-write
010: read-execute
011: read-write-execute
100: promote to PL 0.
101: promote to PL 1.
110: promote to PL 2.
111: remain at PL 3.

we don't need the B and T bits.  We don't need access types 101, 110, 111.  We only
need one bit for bits 8 .. 11 (they are either all 1 or all 0, so we can do an extrs).

We do need a "referenced" bit (not sure whether the dirty bit can do that for us more
efficiently) and a "valid" bit in addition to what the hardware gets to see.

So, I am just thinking of what the reason was we cannot just store bits 1 .. 12 in the
12 LSBs of the PTE, use bit 1 as a valid bit and be happy.  I am pretty sure there was
one.

> Anyway, I'm after a spare bit in the pte for _PAGE_GATEWAY.  As I
> understand it (from the mk_pte() macro), there are 12 bits available,
> only 8 of which are used, so I can nobble one of them to mark a page
> as being a gateway, right?

I would rather see a completely rewritten TLB insertion handler and either saving a
7-bit access rights field or a "I am special" bit / bit pattern.  The idea behind that
is it is used to re-insert BTLB entries / large mappings so we don't fault for every
single page and gateway pages would fit nicely into that.

	Philipp Rumpf


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From: Philipp Rumpf <prumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] exec() problem
Date: Sat, 6 Nov 1999 20:27:38 +0100
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"From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>"
Xref: news.gmane.org gmane.linux.ports.parisc:6309

> This is rumored to be a known problem.  Since I've seen it a lot recently

I am not sure it's the one I do know (and which will be fixed as soon as I got
my machines set-up again and got time to do debugging).

> and am going on vacation, here's what I know in case it helps.  The problem
> can manifest on one machine and not another with the same bits.  It can
> come and go as the size of code in arch/parisc/kernel changes.  The
> problem shows in the boot like this:
> 
>     Attempting to execute '/sbin/init'
> 
>     PSW  : 0004000b  GR 1 : c0128800  GR 2 : c0029390  GR 3 : 00000000
>     GR 4 : 00000000  GR 5 : ffffffff  GR 6 : 00000000  GR 7 : c0092708
>     GR 8 : c0fdba20  GR 9 : c00924c8  GR10 : 00000080  GR11 : 0000000a
>     GR12 : 00000000  GR13 : 00000000  GR14 : 00000001  GR15 : c00927c8
>     GR16 : c0100000  GR17 : c00292e0  GR18 : c0092720  GR19 : 00000000
>     GR20 : c0128a00  GR21 : a0000024  GR22 : 00000000  GR23 : c012bc7c
>     GR24 : c00927c8  GR25 : 00000000  GR26 : c0092708  GR27 : c008e000
>     GR28 : 00000000  GR29 : 00000000  GR30 : c0092a00  GR31 : c0039914
>     SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000
>     SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000
>     IAOQ : c0028e5c c0028e60
> 
>     bad address a000002c (code 15)
>     Kernel panic: bad address
> 
> adb on the IAOQ address says:
> 
>     do_generic_file_read+16C:       LDW             8(r21),r19
> 
> which is consistent with the value in r21 (a0000024).  This is
> inside a call which I believe is called eventually from do_execve()
> called within init/main.c:init().  I didn't track down do_execve().

This looks a lot like a completely bogus pointer which might be both memory
corruption and the schedule() returns early bug I know of.

	Philipp Rumpf


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From: Philipp Rumpf <prumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] xchg implementation
Date: Sat, 6 Nov 1999 20:22:13 +0100
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"From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>"
Xref: news.gmane.org gmane.linux.ports.parisc:6310

> You're thinking of CR26 and 27 (ref: Kane's PA-RISC 2.0 Architecture,
> page 2-17).  CR31 _is_ used, I didn't read carefully enough:

Summary of current temporary register usage:


register	today		soon
CR24		unused		what CR26 is today (I thought CR2[45] were readable
CR25		unused		what CR25 is today  from userspace. stupid prumpf)
CR26		used in head.S	unused
CR27		used in head.S	unused
CR28		temporary usage in interruption handlers [GR1  saved here]
CR29		temporary usage in interruption handlers [arg0 (for the interruption
			handler, NOT GR26) saved here]
CR30	 	current, 0 if in kernel mode (this might not work for syscalls yet)
CR31		temporary usage in interruption handlers [GR29 saved here]

I think using three temporary registers for interruption handlers is okay.

The current/0 register is quite helpful and I'd like to keep it the way it is.

One register to add is a pointer to our PGD so our TLB insertion handler can be

mtctl		 1, TR_INTR_GR1
mtctl		29, TR_INTR_GR29
mtctl		 2, TR_INTR_ARG0	/* we don't have an argument */
mfctl		TR_PGD,  1
mfctl		IOR, 29
extru		29,  9, 10, 2		/* PGD offset */
ldwx,s		 2( 1),  1 		/* load word scaled(?) (so at address GR1 + 4*GR2) */
bb,<,n		 1, PG_PRESENT_BIT, major_page_fault	/* major page fault if pte invalid */
extru		29, 19, 10, 2		/* PTE offset */
ldwx,s		 2( 1),  1		/* load PTE */
/* do the PTE translation here */
/* do idtlba, idtlbp, iitlba, iitlbp, idtlbt, iitlbt, idtlbaf, idtlbpf, iitlbaf, or iitlbpf
 * depending on CPU / fault type. */

I still haven't found any magic tricks to speed up xchg (the way I understand it
hashing the address and indexing an array of spinlocks for the atomic operations
probably is the best thing to do for SMP, for UP I think we have to do an irqsave/
irqrestore).  Should there be any I am too stupid to see I think it's no problem
using a temporary register for it.

That leaves one or two registers for future use (our FP emulator for some of the
CPUs with half an FPU (PA7100LC) might need one to point to the FP registers or
something, don't know whether syscalls could use one too), and the two we can read
out of userspace.  What does HP/UX use them for ?

	Philipp Rumpf


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From: Philipp Rumpf <prumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] _end symbol in parisc linux?
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"From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>"
Xref: news.gmane.org gmane.linux.ports.parisc:6311

> Anybody know how to get PA-Linux to have an _end symbol like
> most other programs, including Intel Linux?

AFAIK we would need to have linker scripts to do so, which seems to be impossible
with the HP/UX ld.  So this is on the "things that will get nicer when we have
GNU binutils again" list.

	Philipp Rumpf


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From: Philipp Rumpf <prumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Recent changes
Date: Sat, 6 Nov 1999 19:20:23 +0100
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"From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>"
Xref: news.gmane.org gmane.linux.ports.parisc:6312

On Tue, Nov 02, 1999 at 11:14:33PM -0500, Alex deVries wrote:
> ld: Unsatisfied symbols:
>    hpux_brk (code)

Why did the definition of hpux_brk (in kernel/sys_hpux.c) ever vanish ?  Some
time ago, it looked like this:

unsigned long sys_brk(unsigned long addr);

unsigned long hpux_brk(unsigned long addr)
{
        /* Sigh.  Looks like HP/UX libc relies on kernel bugs. */
        return sys_brk(addr + PAGE_SIZE);
}

	Philipp Rumpf


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From: Philipp Rumpf <prumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] sash commands
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"From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>"
Xref: news.gmane.org gmane.linux.ports.parisc:6313

> cd
> -chgrp
> -chmod
> -chown
> help
> -ls
> -mkdir
> -pwd
> -touch
> -where

whee.

> -mount is known to not work.  I need to speak to prumpf about why this is.

If I see this correctly this is the 4-argument problem.  Our current (hacked)
syscall support only supports the register arguments because supporting the
other ones too just would mean nobody ever got around to fix syscall support :)

If anyone else needs to send me email (or needed in the last two weeks or so),
please use the new ugly address Philipp.H.Rumpf@mathe.stud.uni-erlangen.de. As
I don't work for SuSE any more, prumpf@suse.de is very likely to be invalid
shortly and I am not sure how often I'll be able to check it before.

> Ditto -sync.

what's the problem with sync ?

	Philipp Rumpf

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"Strelow, Ulrich" wrote:

>      2. The easiest way is to use rbootd. For this test you need a
>      linux-x86 machine connect to the 712/100 via LAN:


    My 712 (a /60) uses bootp for network booting.  I thought only the
older 700 classes used rboot for
network booting.

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From - Thu Nov 08 21:11:04 2018
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From: Philipp Rumpf <prumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Recent changes
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Xref: news.gmane.org gmane.linux.ports.parisc:6314

> I've changed it to call sys_brk instead; I'm not quite sure why I had
> thought it would need to call a different function, brk looks identical
> to me on both OSes.

It isn't.  HP/UX brk seems to be equivalent to sys_brk(addr + PAGE_SIZE), i.e.
while Linux gets passed a pointer to the first byte after the end of the brk'd
segment, HP/UX brk gets passed a pointer to the first byte of the last page of
it.  At least, this seemed to be the case for our first binaries.

	Philipp Rumpf


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From: Philipp Rumpf <prumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Congratulations, remarks and questions
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Xref: news.gmane.org gmane.linux.ports.parisc:6315

> 4. run make config and change the following options:
> CONFIG_IODC_CONSOLE=y
> CONFIG_NETDEVICES=n 
> CONFIG_VT=y
> CONFIG_VT_CONSOLE=y
> CONFIG_SERIAL=n

you're seeing the prompt with the IODC console ?

> Now the questions: the kernel boots to the
> sash-prompt, but no keyboard input is possible
> (neither the HIL-keyboard, nor the keyboard from the
> serial terminal I was using). Is this because of the
> missing support for the ASP chip of the 715/33 ? Are

Unfortunately, the IODC console is not designed to be full-duplex for
multitasking OSes.  Thus, you need to get the serial / HIL driver going
on your hardware to be able to input things or add input to the IODC
console driver which will cause bad 5 second delays (according to the
documentation) when there is no input.

	Philipp Rumpf


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] _end symbol in parisc linux?
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  In message <19991106192614.H11609@mathe.stud.uni-erlangen.de>you write:
  > > Anybody know how to get PA-Linux to have an _end symbol like
  > > most other programs, including Intel Linux?
  > 
  > AFAIK we would need to have linker scripts to do so, which seems to be impo
  > ssible
  > with the HP/UX ld.  So this is on the "things that will get nicer when we h
  > ave
  > GNU binutils again" list.
Actually, you can with SOM with clever use of the sort_key attribute within
a subspace.  Create a new subspace with a larger than normal sort key.  Within
that space create a single symbol "_end".

Though I'd worry about precisely *why* someone wants the _end symbol; whatever
they're trying to do there's probably a better way.

jeff


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Sorry, wrong address
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Xref: news.gmane.org gmane.linux.ports.parisc:6317

Sorry for the unnecessary mail, but it looks like I had my mail reader misconfigured
during the last few mails.  So, if you want to mail me, please use the address
Philipp.H.Rumpf@mathe.stud.uni-erlangen.de.  Do not use prumpf@suse.de.  If you sent
any mail to prumpf@suse.de which I did not answer but you feel I should, please resend
it to the ugly address (i.e. Philipp.H.Rumpf@mathe.stud.uni-erlangen.de one).  The
From:-Header of the mails I sent before were invalid.

Sorry again,
	Philipp Rumpf


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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] pgtable.h:acc_rights()
Date: Sat, 6 Nov 1999 21:48:59 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:6318

On Sat, Nov 06, 1999 at 08:51:25PM +0100, Philipp Rumpf wrote:
> > Why is acc_rights written like this?
> 
> See my commit message.  Basically that works around the "pages mapped
>  read-only when they should be read-write" problem Thomas reported.

the real problem is, that we don't have a working copy on write at the 
moment. So whenever the first access to COW page is a read access, every
write access afterwards will lead to an unhandled page fault (which causes
a panic at the moment). 

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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Xref: news.gmane.org gmane.linux.ports.parisc:6319

On Sat, Nov 06, 1999 at 07:33:30PM +0100, Philipp Rumpf wrote:
> > -mount is known to not work.  I need to speak to prumpf about why this is.
> 
> If I see this correctly this is the 4-argument problem.  Our current (hacked)
> syscall support only supports the register arguments because supporting the
> other ones too just would mean nobody ever got around to fix syscall support :)

Partly.  I should be less gnomic..

Yes, the 4-argument problem is relevant, but it's not the only thing.
sash (since it's a linux program) uses the linux arguments to sys_mount(),
so rather than both writing hpux_mount(), I decided to convince sash to
use the Linux entry point for sys_mount(), and that's what the sash-willy
in puffin.external.hp.com's /tmp has different to the other sashes.

Then I discovered that Linux syscalls were not working because we didn't
have a page mapped at 0xC000'1000, then I discovered we didn't have a
page mapped at 0xC000'0000 either and there was instead a nasty kludge
in fault.c to handle hpux syscalls.  So I added a nasty kludge in there
to make linux syscalls work too (and they don't have the 4-argument
limitation, due to the syscall convention which I decreed).

Now I'm blundering around in the mm system trying to figure out how to
get gateway pages working properly.

> If anyone else needs to send me email (or needed in the last two weeks or so),
> please use the new ugly address Philipp.H.Rumpf@mathe.stud.uni-erlangen.de. As
> I don't work for SuSE any more, prumpf@suse.de is very likely to be invalid
> shortly and I am not sure how often I'll be able to check it before.

The return address on this one was prumpf@mathe.stud.uni-erlangen.de.
I'm using the ugly address you quote there.

> > Ditto -sync.
> 
> what's the problem with sync ?

The same as the problem with -umount -- rather hard to test that it's
working :-)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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To: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:6320

On Sat, Nov 06, 1999 at 07:20:23PM +0100, Philipp Rumpf wrote:
> On Tue, Nov 02, 1999 at 11:14:33PM -0500, Alex deVries wrote:
> > ld: Unsatisfied symbols:
> >    hpux_brk (code)
> 
> Why did the definition of hpux_brk (in kernel/sys_hpux.c) ever vanish ?  Some
> time ago, it looked like this:
> 
> unsigned long sys_brk(unsigned long addr);
> 
> unsigned long hpux_brk(unsigned long addr)
> {
>         /* Sigh.  Looks like HP/UX libc relies on kernel bugs. */
>         return sys_brk(addr + PAGE_SIZE);
> }

It looks like I'm accidentally responsible for deleting that.  Maybe this
explains why grant found that `alias' wasn't working well in sash.  I've
just committed this function back.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


From - Thu Nov 08 21:11:05 2018
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From: Andi <der_fisch@fischlustig.de>
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Subject: [parisc-linux] cant use  rbootd
Date: Sun, 7 Nov 1999 13:18:39 +0100
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Hi,

I am using an rbootd running on Debian 2.1 , but my HP 712/60 cant find it, I
put the correct ethernet adress in the /etc/rbootd.conf

but nothing happens if i type

BOOT_ADMIN> search lan


bye
  Andi


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From: Martin Schulze <joey@finlandia.Infodrom.North.DE>
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Subject: Re: cant use  rbootd
Date: Sun, 7 Nov 1999 13:41:58 +0100
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Andi wrote:
> Hi,
> 
> I am using an rbootd running on Debian 2.1 , but my HP 712/60 cant find it, I
> put the correct ethernet adress in the /etc/rbootd.conf

I guess you'll need the Puffins patch applied.  The patch is available
in the upcoming unstable aka 2.2 of Debian - I hope... In any case you'll
find a non-official package at http://master.debian.org/~joey/NMU/ .  On
2.1 box you'll need to recompile it.

Regards,

	Joey

-- 
Beware of bugs in the above code; I have only proved it correct,
not tried it.  -- Donald E. Knuth


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On Sun, Nov 07, 1999 at 01:18:39PM +0100, Andi wrote:
> Hi,
> 
> I am using an rbootd running on Debian 2.1 , but my HP 712/60 cant find it, I
> put the correct ethernet adress in the /etc/rbootd.conf
> 
> but nothing happens if i type
> 
> BOOT_ADMIN> search lan

Is rbootd definitely running?  I find that if it can't change to the
appropriate directory, it just exits silently.

BTW, /export/hp is exactly the same length as /usr/local, so

sed -e s:/export/hp:/usr/local:

allows you to use /usr/local/rbootd as somewhere to put kernels if you
don't fancy clusteering your /.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson

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From: "Mandachi, Dorin \(Omaha\)" <Dorin.Mandachi@cox.com>
To: "'hppa-linux@thepuffingroup.com'" <hppa-linux@thepuffingroup.com>
Subject: RE: Betr.: RE: [hppa-linux] Another bootstrap test
Date: Wed, 3 Mar 1999 12:09:02 -0500 
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I joined the list after the bootstrap was released, can sbdy send me a copy?

thx,

Dorin Mandachi, 

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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] sash commands
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To: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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> > If I see this correctly this is the 4-argument problem.  Our current (hacked)
> > syscall support only supports the register arguments because supporting the
> > other ones too just would mean nobody ever got around to fix syscall support :)
> 
> Partly.  I should be less gnomic..
> 
> Yes, the 4-argument problem is relevant, but it's not the only thing.
> sash (since it's a linux program) uses the linux arguments to sys_mount(),
> so rather than both writing hpux_mount(), I decided to convince sash to
> use the Linux entry point for sys_mount(), and that's what the sash-willy
> in puffin.external.hp.com's /tmp has different to the other sashes.

Oh.  I was under the impression mount was POSIX-defined (it is not).  Sure,
getting it to use Linux syscalls is the best thing to do.

> Then I discovered that Linux syscalls were not working because we didn't
> have a page mapped at 0xC000'1000, then I discovered we didn't have a
> page mapped at 0xC000'0000 either and there was instead a nasty kludge
> in fault.c to handle hpux syscalls.  So I added a nasty kludge in there
> to make linux syscalls work too (and they don't have the 4-argument
> limitation, due to the syscall convention which I decreed).
> 
> Now I'm blundering around in the mm system trying to figure out how to
> get gateway pages working properly.

Well, the first step would be to get PAGE_OFFSET == 0x8000 0000 (or any other value
that does not collide with 0xc000 0000) working.  I tried to keep dependencies on
it at a minimum but completely failed, so if someone could find all instances of

depi	3,1,2,XXX	and replace them with		tovirt XXX
0xc0000000 (as PAGE_OFFSET)				PAGE_OFFSET / __PAGE_OFFSET

that would help a lot (otherwise I'll try).

	Philipp Rumpf


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> the real problem is, that we don't have a working copy on write at the 
> moment. So whenever the first access to COW page is a read access, every
> write access afterwards will lead to an unhandled page fault (which causes
> a panic at the moment). 

Actually, there is some code there to explain this.  I never realized we did 
differentiate between read/write accesses and thought we were still hardcoding
a write access.  This shouldn't be too difficult to work around.

	Philipp Rumpf


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From: Andi <der_fisch@fischlustig.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] cant use rbootd
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On Son, 07 Nov 1999, Andi wrote:
> Hi,
> 
> I am using an rbootd running on Debian 2.1 , but my HP 712/60 cant find it, I
> put the correct ethernet adress in the /etc/rbootd.conf
> 
> but nothing happens if i type
> 
> BOOT_ADMIN> search lan

OK, forget what I wrote, I used rbootd instead of bootp... oops. Booting over
the network works now. I tried the latest snapshot of the PARISC-Linux Kernel.
But it doenst seem to get far...

after 

"transferring control to kernel (...)"

nothing happens.

-- 
bye
  Andi


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: cant use  rbootd
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Xref: news.gmane.org gmane.linux.ports.parisc:6327

On Sun, 7 Nov 1999, Martin Schulze wrote:
> > 
> > I am using an rbootd running on Debian 2.1 , but my HP 712/60 cant find it, I
> > put the correct ethernet adress in the /etc/rbootd.conf
> 
> I guess you'll need the Puffins patch applied.  The patch is available
> in the upcoming unstable aka 2.2 of Debian - I hope... In any case you'll
> find a non-official package at http://master.debian.org/~joey/NMU/ .  On
> 2.1 box you'll need to recompile it.

To make things clearer, I know for a fact that the rpm that's on
puffin.external.hp.com will work if you create the directory that's not in
the package (yes, I've been meaning to fix that package for about 6 months
now).  The Debian package should have the same patches applied.  

Also, I'd really appreciate it if you could mail that Debian binary
package to me so I can put it on puffin.external.hp.com.

- Alex "puffin" deVries.


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From: Martin Schulze <joey@finlandia.Infodrom.North.DE>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: cant use  rbootd
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Alex deVries wrote:
> Also, I'd really appreciate it if you could mail that Debian binary
> package to me so I can put it on puffin.external.hp.com.

Errr, can't you use lynx or wget?

Anyway, the files should be in your mailbox, source and binary.

I'll try to keep up updated.

Regards,

	Joey

-- 
Beware of bugs in the above code; I have only proved it correct,
not tried it.  -- Donald E. Knuth


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On Sun, Nov 07, 1999 at 07:04:46PM +0100, Andi wrote:
> OK, forget what I wrote, I used rbootd instead of bootp... oops. Booting over
> the network works now. I tried the latest snapshot of the PARISC-Linux Kernel.
> But it doenst seem to get far...
> 
> after 
> 
> "transferring control to kernel (...)"
> 
> nothing happens.

See

http://puffin.external.hp.com/mailing-lists/parisc-linux/1068.html

The information contained therein is essential for anyone not using a
serial console.

P.S.  I've managed to find a machine to act as an rboot server now,
so I've started hacking on the HIL driver to make it work on the 7xx
series as well as the 300.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Cary Coutant <cary@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] _end symbol in parisc linux?
Date: Mon, 8 Nov 1999 11:18:01 -0800
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Cc: "Paul Bame" <bame@debian.fc.hp.com>, <parisc-linux@thepuffingroup.com>
To: "Jeff Law" <law@cygnus.com>,
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>  > > Anybody know how to get PA-Linux to have an _end symbol like
>  > > most other programs, including Intel Linux?
>  > 
>  > AFAIK we would need to have linker scripts to do so, which seems to be 
>impo
>  > ssible
>  > with the HP/UX ld.  So this is on the "things that will get nicer when 
>we h
>  > ave
>  > GNU binutils again" list.
>Actually, you can with SOM with clever use of the sort_key attribute within
>a subspace.  Create a new subspace with a larger than normal sort key.  
>Within
>that space create a single symbol "_end".

Donald Scobbie already answered the question:

>Define the symbol as:
>
>extern void *_end;
>
>and the linker will sort it out for you. See the HP-UX man page for
>'end'.

The HP-UX SOM linker will create the symbols _etext, _edata, and _end if 
they are referenced; it won't create them if they're not referenced.

-cary


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Subject: Re: [parisc-linux] iodc console patch
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Xref: news.gmane.org gmane.linux.ports.parisc:6331

On Wed, Oct 27, 1999 at 11:46:59PM +0200, Thomas Bogendoerfer wrote:
> To get a sash prompt on my 715/33 I need the patch below. Even if this
> patch isn't release quality something like that is needed to get the
> iodc console going.
> 
> Because I still have some problems with the first few printed lines, I
> haven't checked it into cvs. Hope it helps others as well. Ohh and changing
> "console=ttyS0" to "console=tty" in boot_code/ipl_c.c is required, too.

I've just checked in something similar.  You should also disable
CONFIG_VT_CONSOLE, or you'll see all lines printed twice.  I think it
will now work out of the box for the 715/33 if you have the right .config.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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On Mon, Nov 08, 1999 at 09:09:24PM +0100, Matthew Wilcox wrote:
> I've just checked in something similar.  You should also disable
> CONFIG_VT_CONSOLE, or you'll see all lines printed twice.  I think it
> will now work out of the box for the 715/33 if you have the right .config.

*ahem*.  Of course, if you do, it will be unable to open an initial
console and panic.  Oops.  Don't do this for the moment :-)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: [parisc-linux] HIL status
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I've taken the hp300 HIL driver written by Phil Blundell and it `works'
on my 715/33.  It's producing the wrong keycodes, it's doing work that an
ASP driver ought to be doing and it's producing a fair bit of extraneous
crap on the screen.  But I'm getting interrupts and keycodes so I'm
happy for tonight :-)

The next obvious step is to have an ASP manager, like LASI.  In fact, so
much like LASI, it probably ought to be in the same driver.  This seems to
be how Mach does it, and there's a rumour this is also how HPUX does it.
My question is: how?  Mach hardcodes the address of ASP to 0xf0800000,
but there's nothing even close in the driver list.  I notice in the
bootlogs which have previously been posted, LASI was at the address of
`Core BA', but you can see that's wildly different on this machine.
Should I invent my own and insert it into the structures we have?

Here's the driver list printed at boot on the 715 (is someone collecting
these somewhere?)

1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0, 0x77, 0x0, 0x0
2. Scorpio Jr Core BA (11) at 0xf082f000, versions 0xb, 0x0, 0x70, 0x0, 0x0
3. Scorpio Jr Core SCSI (10) at 0xf0825000, versions 0xb, 0x0, 0x71, 0x0, 0x0
4. Scorpio Jr Core LAN (802.3) (10) at 0xf0826000, versions 0xb, 0x0, 0x72, 0x0, 0x0
5. Scorpio Jr Core HIL (10) at 0xf0821000, versions 0xb, 0x0, 0x73, 0x0, 0x0
6. Scorpio Jr Core RS-232 (10) at 0xf0823000, versions 0xb, 0x0, 0x75, 0x0, 0x0
7. Scorpio Jr Core RS-232 (10) at 0xf0822000, versions 0xb, 0x0, 0x75, 0x0, 0x0
8. Scorpio Jr Core Centronics (10) at 0xf0824000, versions 0xb, 0x0, 0x74, 0x0, 0x0
9. Scorpio Jr Audio (10) at 0xf1000000, versions 0xb, 0x0, 0x76, 0x0, 0x0
10. Scorpio Jr (715/33) (0) at 0xfffbe000, versions 0x311, 0x0, 0x4, 0x0, 0x81
11. Scorpio Jr (1) at 0xfffbf000, versions 0x16, 0x0, 0x9, 0x0, 0x0

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson

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From: Jason Eckhardt <jason@equator.com>
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To: hppa-linux@thepuffingroup.com
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> I joined the list after the bootstrap was released, can sbdy send me a copy?
>
> thx,
>
> Dorin Mandachi, 

  Actually, the last one failed on some machines, I need sort out what
  happened. Then I'll put up a revised version that you may try (and others).
  From now on I'll be distributing them on the FTP site so people can 
  pick them up more easily.

  Jason Eckhardt.

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Subject: Re: [parisc-linux] HIL status
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> I've taken the hp300 HIL driver written by Phil Blundell and it `works'
> on my 715/33.  It's producing the wrong keycodes, it's doing work that an
> ASP driver ought to be doing and it's producing a fair bit of extraneous
> crap on the screen.  But I'm getting interrupts and keycodes so I'm
> happy for tonight :-)

Maybe this is due to the difference between keycodes for HP (e.g., C1429A)
and PS/2 keyboards?

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HIL status
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> I've taken the hp300 HIL driver written by Phil Blundell and it `works'
> on my 715/33.  It's producing the wrong keycodes, it's doing work that an
> ASP driver ought to be doing and it's producing a fair bit of extraneous
> crap on the screen.  But I'm getting interrupts and keycodes so I'm
> happy for tonight :-)

congrats.  The Lasi / PS/2 driver shouldn't be too difficult to write either
except for one minor problems:

We do not know how the PS/2 keyboard (identical to AT keyboard I would hope)
self-test procedure is.  We do know that we can send a command to the keyboard
to cause it to start a self-test, and we do know that the Intel keyboard con-
troller has a separate bit in the status register indicating that the keyboard
self-test succeeded.

What we can do (and the Intel keyboard controller cannot) is to manually control
and read the PS/2 data and clock lines, so I suspect we'll have to make use of
this to successfully do a keyboard self-test.

If you know of any documentation describing what happens during an AT keyboard
self-test, please tell us.

> My question is: how?  Mach hardcodes the address of ASP to 0xf0800000,
> but there's nothing even close in the driver list.  I notice in the

> 2. Scorpio Jr Core BA (11) at 0xf082f000, versions 0xb, 0x0, 0x70, 0x0, 0x0
> 3. Scorpio Jr Core SCSI (10) at 0xf0825000, versions 0xb, 0x0, 0x71, 0x0, 0x0
> 4. Scorpio Jr Core LAN (802.3) (10) at 0xf0826000, versions 0xb, 0x0, 0x72, 0x0, 0x0
> 5. Scorpio Jr Core HIL (10) at 0xf0821000, versions 0xb, 0x0, 0x73, 0x0, 0x0
> 6. Scorpio Jr Core RS-232 (10) at 0xf0823000, versions 0xb, 0x0, 0x75, 0x0, 0x0
> 7. Scorpio Jr Core RS-232 (10) at 0xf0822000, versions 0xb, 0x0, 0x75, 0x0, 0x0
> 8. Scorpio Jr Core Centronics (10) at 0xf0824000, versions 0xb, 0x0, 0x74, 0x0, 0x0

I am sorry, but when all this devices are within a 1 MB offset of the HPA we're
looking for (0xf0800000 + 1 M = 0xf0900000, I hope), doesn't that look very nice
indeed ?  You are right that the interrupt management (which is at address
0xf0800000) is not specifically printed here, but I think we should be able
to deduce it, shouldn't we ?

	Philipp Rumpf


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Xref: news.gmane.org gmane.linux.ports.parisc:6336

On Tue, Nov 09, 1999 at 06:57:47PM -0500, John David Anglin wrote:
> > I've taken the hp300 HIL driver written by Phil Blundell and it `works'
> > on my 715/33.  It's producing the wrong keycodes, it's doing work that an
> > ASP driver ought to be doing and it's producing a fair bit of extraneous
> > crap on the screen.  But I'm getting interrupts and keycodes so I'm
> > happy for tonight :-)
> 
> Maybe this is due to the difference between keycodes for HP (e.g., C1429A)
> and PS/2 keyboards?

Sorry, I was rather unclear there.  The HIL driver has its own built-in
keymaps.  What I'm seeing (for example, when I press the `g' key):

)
)
g
)
)

or sometimes

)
)
)
)
g

or some other permutation.  I would prefer to not worry about this for
the moment; there's lots of other things to tidy up and it'll probably
sort itself out once something else is done properly.

I've now committed most of my changes.  I'm _not_ committing this one
as it'll definitely screw up every other type of machine:

ndex: irq.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/irq.c,v
retrieving revision 1.36
diff -u -r1.36 irq.c
--- irq.c       1999/10/31 06:26:35     1.36
+++ irq.c       1999/11/10 00:05:28
@@ -225,12 +225,17 @@
                if(!(bit&mask))
                        continue;
 
+#if 1
+               if (irq == 3) {
+                       gsc_readl(0xf0800000);
+               }
+#else
                if(irq) {
-#if 0
                        printk("Interrupt %2d(%2d+%2d)\n", irq+region->data.irqbase, irq, region->data.irqbase);
+                       printk("ASP mask = %x", gsc_readl(0xf0800000));
 
-#endif
                }
+#endif
                mask_irq(irq);
                do_irq(&region->action[irq], region->data.irqbase + irq, regs);
                unmask_irq(irq);

(please excuse the copy & paste)

If you have a 715/33, you may wish to apply the patch and watch in
amazement as your keyboard produces characters.  Hopefully we'll thrash
out how to get it working properly soon.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Xref: news.gmane.org gmane.linux.ports.parisc:6337

On Wed, Nov 10, 1999 at 01:14:09AM +0100, Philipp Rumpf wrote:
> > My question is: how?  Mach hardcodes the address of ASP to 0xf0800000,
> > but there's nothing even close in the driver list.  I notice in the
> 
> > 2. Scorpio Jr Core BA (11) at 0xf082f000, versions 0xb, 0x0, 0x70, 0x0, 0x0
> > 3. Scorpio Jr Core SCSI (10) at 0xf0825000, versions 0xb, 0x0, 0x71, 0x0, 0x0
> > 4. Scorpio Jr Core LAN (802.3) (10) at 0xf0826000, versions 0xb, 0x0, 0x72, 0x0, 0x0
> > 5. Scorpio Jr Core HIL (10) at 0xf0821000, versions 0xb, 0x0, 0x73, 0x0, 0x0
> > 6. Scorpio Jr Core RS-232 (10) at 0xf0823000, versions 0xb, 0x0, 0x75, 0x0, 0x0
> > 7. Scorpio Jr Core RS-232 (10) at 0xf0822000, versions 0xb, 0x0, 0x75, 0x0, 0x0
> > 8. Scorpio Jr Core Centronics (10) at 0xf0824000, versions 0xb, 0x0, 0x74, 0x0, 0x0
> 
> I am sorry, but when all this devices are within a 1 MB offset of the HPA we're
> looking for (0xf0800000 + 1 M = 0xf0900000, I hope), doesn't that look very nice
> indeed ?  You are right that the interrupt management (which is at address
> 0xf0800000) is not specifically printed here, but I think we should be able
> to deduce it, shouldn't we ?

Ummmm.. how exactly were you intending on going about this?  In lasi.c,
in lasi_init_chip(), round the address down to the nearest megabyte?
(possibly with a check on the type of `lasi' we found?)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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On Wed, 10 Nov 1999, Matthew Wilcox wrote:
> I've taken the hp300 HIL driver written by Phil Blundell and it `works'
> on my 715/33.  It's producing the wrong keycodes, it's doing work that an
> ASP driver ought to be doing and it's producing a fair bit of extraneous
> crap on the screen.  But I'm getting interrupts and keycodes so I'm
> happy for tonight :-)

Yay!

Having ASP interrupts working will enable a lot of different boxes to be
supported, mostly 715s.  I have a /50, /75 and probably /100 to test on.

The closest things we have to ASP docs are:
- take the portions of the Lasi docs that describe how Lasi is not like
ASP, and read backwards
- openbsd
- mklinux 

> The next obvious step is to have an ASP manager, like LASI.  In fact, so
> much like LASI, it probably ought to be in the same driver.  

My best guess is that Lasi is really ASP but integrated onto one cell with
a couple of bug fixes.  So yes, it really should be the same driver if at
all possible.  I had actually started on this but hadn't had time to get
it working. :)

> This seems to
> be how Mach does it, and there's a rumour this is also how HPUX does it.
> My question is: how?  Mach hardcodes the address of ASP to 0xf0800000,
> but there's nothing even close in the driver list.  I notice in the
> bootlogs which have previously been posted, LASI was at the address of
> `Core BA', but you can see that's wildly different on this machine.
> Should I invent my own and insert it into the structures we have?

Hrm.  That's uncomfortable. So did it actually work at 0xf0800000?

The problem comes when we hit an ASP that's not at 0xf0800000, which I'd
think might come up with ASP add on cards.

I don't think that firmware is lying, though.  Perhaps we just need to
subtract 0x2f000 for some reason.

> Here's the driver list printed at boot on the 715 (is someone collecting
> these somewhere?)

Within a week, I'll send some mail about The Puffin PA RISC Hardware
Guide. Details to come.

- Alex


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On Wed, 10 Nov 1999, Philipp Rumpf wrote:
> We do not know how the PS/2 keyboard (identical to AT keyboard I would hope)
> self-test procedure is.  We do know that we can send a command to the keyboard
> to cause it to start a self-test, and we do know that the Intel keyboard con-
> troller has a separate bit in the status register indicating that the keyboard
> self-test succeeded.
> 
> What we can do (and the Intel keyboard controller cannot) is to manually control
> and read the PS/2 data and clock lines, so I suspect we'll have to make use of
> this to successfully do a keyboard self-test.

For the time being we can just ignore this test.  I'm not entirely sure
that there's an easy way to actually test it.  Right now I coded it to
test the controller, but not the keyboard.

> If you know of any documentation describing what happens during an AT keyboard
> self-test, please tell us.

Note, this is NOT the 8042.  It has it's own test sequence that the PS/2
keyboard itself does not handle. The next person to point me to 8042 docs
will receive one (1) boot to the head.

- Alex


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On Wed, 10 Nov 1999, Matthew Wilcox wrote:
> Ummmm.. how exactly were you intending on going about this?  In lasi.c,
> in lasi_init_chip(), round the address down to the nearest megabyte?
> (possibly with a check on the type of `lasi' we found?)

We should probably have asp_init_chip() which gets triggered only for ASP
components.  Then you can adjust thhpa and go on with initialization.

- Alex


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Xref: news.gmane.org gmane.linux.ports.parisc:6341

On Wed, Nov 10, 1999 at 04:03:39AM -0500, Alex deVries wrote:
> 
> Having ASP interrupts working will enable a lot of different boxes to be
> supported, mostly 715s.  I have a /50, /75 and probably /100 to test on.

The /50 and /75 are also Scorpio machines.  The /100 is either a Mirage or
a Turnip.  As such, I don't know if it has ASP.

> The closest things we have to ASP docs are:
> - take the portions of the Lasi docs that describe how Lasi is not like
> ASP, and read backwards

umm.. 4MB download this evening then...

> Hrm.  That's uncomfortable. So did it actually work at 0xf0800000?

Yep.

> The problem comes when we hit an ASP that's not at 0xf0800000, which I'd
> think might come up with ASP add on cards.

Do ASP add-in cards exist?  We could just refuse to support them until
we know more :-)

> I don't think that firmware is lying, though.  Perhaps we just need to
> subtract 0x2f000 for some reason.

Found out what this is in the mach sources.  It's called CORE_ASP:

/*
 * Structures defining memory-mapped registers in the Core IOSS (ASP).
 */
        vu_char reset;          /* (WO) IOSS reset */
        vu_char version;        /* (RO) version byte */
        vu_char scsi_dsync;     /* (WO) SCSI DSYNC enable bit (1:enable) */
        vu_char error;          /* bus errors while ASP masters SGC/VSC */
        vu_char lan_oen;        /* (WO) output enable Ethernet/FDDI */

Shortly below this is:

/*
 * Structures defining memory-mapped registers in the Core IOSS (LASI).
 */
struct core_lasi {
        vu_int  power;
        vu_int  error;
        vu_int  version;
        vu_int  reset;
        vu_int  arbmask;
};

which is defined to be at 0xF010C000.

> > Here's the driver list printed at boot on the 715 (is someone collecting
> > these somewhere?)
> 
> Within a week, I'll send some mail about The Puffin PA RISC Hardware
> Guide. Details to come.

Oh good.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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|On Wed, Nov 10, 1999 at 04:03:39AM -0500, Alex deVries wrote:
|> 
|> Having ASP interrupts working will enable a lot of different boxes to be
|> supported, mostly 715s.  I have a /50, /75 and probably /100 to test on.
|
|The /50 and /75 are also Scorpio machines.  The /100 is either a Mirage or
|a Turnip.  As such, I don't know if it has ASP.

/100 is a LASI machine, like 80 and 64.  They are the original 3 mirages.
Turnip is a mirage with bigger caches, shouldn't affect driver stuff.


|> The closest things we have to ASP docs are:
|> - take the portions of the Lasi docs that describe how Lasi is not like
|> ASP, and read backwards
|
|umm.. 4MB download this evening then...
|
|> Hrm.  That's uncomfortable. So did it actually work at 0xf0800000?
|
|Yep.
|
|> The problem comes when we hit an ASP that's not at 0xf0800000, which I'd
|> think might come up with ASP add on cards.
|
|Do ASP add-in cards exist?  We could just refuse to support them until
|we know more :-)

I've never heard of one, and I've also never heard of a slot that might
support one.  SO, with 99.9% confidence, no they don't exist.

|
|> I don't think that firmware is lying, though.  Perhaps we just need to
|> subtract 0x2f000 for some reason.
|
|Found out what this is in the mach sources.  It's called CORE_ASP:
|
|/*
| * Structures defining memory-mapped registers in the Core IOSS (ASP).
| */
|        vu_char reset;          /* (WO) IOSS reset */
|        vu_char version;        /* (RO) version byte */
|        vu_char scsi_dsync;     /* (WO) SCSI DSYNC enable bit (1:enable) */
|        vu_char error;          /* bus errors while ASP masters SGC/VSC */
|        vu_char lan_oen;        /* (WO) output enable Ethernet/FDDI */
|
|Shortly below this is:
|
|/*
| * Structures defining memory-mapped registers in the Core IOSS (LASI).
| */
|struct core_lasi {
|        vu_int  power;
|        vu_int  error;
|        vu_int  version;
|        vu_int  reset;
|        vu_int  arbmask;
|};
|
|which is defined to be at 0xF010C000.
|
|> > Here's the driver list printed at boot on the 715 (is someone collecting
|> > these somewhere?)
|> 
|> Within a week, I'll send some mail about The Puffin PA RISC Hardware
|> Guide. Details to come.
|
|Oh good.

If you have specific Scorpio/ASP questions, mail them to me, and I'll 
look them up in the docs.

	-Bill


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Matthew Wilcox wrote:
> On Wed, Nov 10, 1999 at 04:03:39AM -0500, Alex deVries wrote:
> > 
> > Having ASP interrupts working will enable a lot of different boxes to be
> > supported, mostly 715s.  I have a /50, /75 and probably /100 to test on.
> 
> The /50 and /75 are also Scorpio machines.  The /100 is either a Mirage or
> a Turnip.  As such, I don't know if it has ASP.

Turnip is the 715/100XC. Has 1MB I/D cache vs the 128KB or 256KB that
the regular 715/100. Alex is getting a 715/100 to test with and
he can then tell you if it has ASP or LASI ( I think the latter but don't
know for sure).

grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253

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Hi,

I am a new kid on the HP block. I am running Linux on Alpha, Intel and
Sparc at present and have just gotten a used HP 9000 715/33 machine.

I noticed you are working on a native port and I can only applaud this.

Yet I have some remarks after studying the webpages on:
http://thepuffingroup.com/parisc/

 1.	The Title on the page does not make it clear we are talking about
	the HPPA/Linux Porting Project. As the tekst is: The Puffin Group
	Inc.

	I would suggest someone merges these two tekst so everyone can
	recognize the page in their bookmarks file.

 2.	There is a small note about a first bootloader but the bootloader
	itself is not noted anywhere I could find it.

	It would be nice if I could give it a try.

My hopes for the long term are on this project as the 715/33 is not
supported by MkLinux. I understand it will be a while before it will be
anywhere near Beta quality.

I can't help with programming. But I can help with testing and documenting
if needed.

Regards,
Hugo.

        +------------------------+------------------------------+
        | Hugo van der Kooij     | Hugo.van.der.Kooij@caiw.nl   |
        | Oranje Nassaustraat 16 | http://www.caiw.nl/~hvdkooij |
        | 3155 VJ  Maasland      | (De man met de rode hoed)    |
        +------------------------+------------------------------+
    "Computers let you make more mistakes faster than any other invention in
      human history, with the possible exception of handguns and tequila."
                (Mitch Radcliffe)

-------------------------------------------------------------------------
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From - Thu Nov 08 21:11:06 2018
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From: Frank Rowand <frank_rowand@hp.com>
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Subject: [parisc-linux] Basic HPMC handler submitted.
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I have submitted a basic HPMC handler.  If an HPMC occurs, the message:

  >>  HPMC occurred  --  resetting system  <<

will be printed and the machine will be reset (except for the A180, which
wedges in the PDC call that is supposed to reset the system - power cycle
your A180).

Feel free to critique the code or fill in the gaps that I left...

The files modified are:

  arch/parisc/kernel/head.S
  arch/parisc/kernel/interruption.S
  include/asm-parisc/assembly.h
  include/asm-parisc/pdc.h


-Frank Rowand


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On Wed, Nov 10, 1999 at 07:24:00AM -0800, Bill Katz William" wrote:
> |Do ASP add-in cards exist?  We could just refuse to support them until
> |we know more :-)
> 
> I've never heard of one, and I've also never heard of a slot that might
> support one.  SO, with 99.9% confidence, no they don't exist.

Excellent.

> If you have specific Scorpio/ASP questions, mail them to me, and I'll 
> look them up in the docs.

OK, here's one...

When I don't attempt to program anything, the ASP defaults to irq 3.
Is this changeable?  What other devices can cause interrupts on Scorpio-
class machines, that don't go through ASP?

The following devices _do_ go through ASP:

EISA, 8042, SCSI, FDDI, RS232, Centronics, Ethernet, Graphics (1 + 2), Audio.

which seems pretty comprehensive.  I'm wondering about slimming down our
interrupt architecture for older machines; it's a trifle over-engineered
for a machine which can't be expanded.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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On Wed, 10 Nov 1999, Matthew Wilcox wrote:
> On Wed, Nov 10, 1999 at 04:03:39AM -0500, Alex deVries wrote:
> > 
> > Having ASP interrupts working will enable a lot of different boxes to be
> > supported, mostly 715s.  I have a /50, /75 and probably /100 to test on.
> 
> The /50 and /75 are also Scorpio machines.  The /100 is either a Mirage or
> a Turnip.  As such, I don't know if it has ASP.

I'm pretty sure that all 715s have ASP in them.

This is easily checked though...

- alex


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I'm also worried about why there are data symbols following BSS in
our current palinux kernel...

= Though I'd worry about precisely *why* someone wants the _end symbol; whatever
= they're trying to do there's probably a better way.

Maybe there is a better way.  The first reason I want to use _end
(and _edata) is to clear the kernel BSS reliably (which is working
great).

The second reason, which doesn't currently work, is to have a symbol
pointing at the very end of kernel memory, since that is where
free memory will start.

Both these tasks are currently being done at run-time -- in one case
by parsing the SOM header and in another case by guessing about a
parameter passed in by the hpux bootloader -- neither is currently
reliable despite the considerable experimentation and
sweat others have poured into the effort.  I want to avoid parsing
the SOM header and guessing about bootloaders in the future.  It
would also be great to use an old, reliable, and language-system
independent.

	-P


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----- Forwarded message from Alex deVries -----


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  In message <199911111536.IAA19092@debian.fc.hp.com>you write:
  > Maybe there is a better way.  The first reason I want to use _end
  > (and _edata) is to clear the kernel BSS reliably (which is working
  > great).
Parse the som exec header.

  > Both these tasks are currently being done at run-time -- in one case
  > by parsing the SOM header and in another case by guessing about a
  > parameter passed in by the hpux bootloader -- neither is currently
  > reliable despite the considerable experimentation and
  > sweat others have poured into the effort.
Then I'd suggest looking at code from folks that have done this in the past;
Utah's BSD & Mach kernels both handle parsing of the SOM exec header just
fine.


jeff


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= Parse the som exec header.

I guess I mangled my earlier note.  I also want a language-system
independent method since we'll not always be wedded to SOM.  More
urgently, the SOM header is apparently unavailable to a program
launched from the hpux bootloader.  I just checked, and HP-UX doesn't
parse the SOM header either -- it uses _end and _edata.

Perhaps you'd be kind enough to write a scrap of assembly magic
which performs the subspace trick you mentioned earlier?  Yeah
it may be ugly and still language-system dependent, but without access
to the SOM header at boot time there's not a prettier option.

Thanks!

	-P


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Subject: Re: [parisc-linux] _end symbol in parisc linux?
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> I'm also worried about why there are data symbols following BSS in
> our current palinux kernel...

I presume that the method of using the linker to define _end isn't
working.  Possibly, it is because the sort order for the sections $ANS$
and $CI$ is wrong.

164 (hiauly1)dave> objdump --headers vmlinux

vmlinux:          file format som

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 $TEXT$        0007a658  c0010000  00000000  00035000  2**3

  1 $FIRST$       00000208  c0010000  00000000  00035000  2**3
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  2 $SHLIB_INFO$  00000000  c0010208  00000000  00035208  2**3
		  ALLOC, LOAD, READONLY, CODE
  3 $MILLICODE$   00001ab8  c0011000  00000000  00036000  2**4
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  4 $LIT$         0000e340  c0012ab8  00000000  00037ab8  2**3
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  5 $CODE$        00062c28  c0020df8  00000000  00045df8  2**3
	          CONTENTS, ALLOC, LOAD, READONLY, CODE
  6 $UNWIND_START$ 000063d0  c0083a20  00000000  000a8a20  2**3
		  CONTENTS, ALLOC, LOAD, READONLY, CODE
  7 $UNWIND_END$  00000868  c0089df0  00000000  000aedf0  2**3
	          CONTENTS, ALLOC, LOAD, READONLY, CODE
  8 $PRIVATE$     0006f2c8  c008b000  00000000  000b0000  2**3

  9 $GLOBAL$      00000008  c008b000  00000000  000b0000  2**3
		  CONTENTS, ALLOC, LOAD, READONLY, CODE
 10 $DATA_START$  00000000  c008b008  00000000  000b0008  2**3
		  ALLOC, LOAD, DATA
 11 .data.cacheline_aligned 00000020  c008c000  00000000  000b1000  2**3
		  CONTENTS, ALLOC, LOAD, DATA
 12 $DATA$        0006d2c8  c008d000  00000000  000b2000  2**12
		  CONTENTS, ALLOC, LOAD, DATA
 13 $BSS$         00015930  c00fa2c8  00000000  00000000  2**3
		  ALLOC
 14 $ANS$         00000a42  00000000  00000000  00120000  2**2
		  DEBUGGING
 15 $CI$          00000a42  00000000  00000000  00120000  2**2
	          CONTENTS, DATA, DEBUGGING

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] _end symbol in parisc linux?
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  In message <199911111614.JAA19293@debian.fc.hp.com>you write:
  > Perhaps you'd be kind enough to write a scrap of assembly magic
  > which performs the subspace trick you mentioned earlier?  Yeah
  > it may be ugly and still language-system dependent, but without access
  > to the SOM header at boot time there's not a prettier option.

	.space $PRIVATE$
	.subspa $AFTERBSS$,QUAD=1,ALIGN=8,ACCESS=31,ZERO,SORT=83
_end:


Or something close to that.

What it does is create a new data section $AFTERBSS$ which has a sort key
greater than $BSS$ ($BSS$'s sort key is 82).  Within that section we define
one symbol "_end".

jeff






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I've got access to a moderately large pile of HP 712s, mostly 60s with a few faster ones,
dirt cheap. I'm contemplating trying to use an array of a few dozen of them for tasks like factoring, which need lots of MIPS
and RAM but not much communication.

I'd want to use a separate machine as a host and run the 712s diskless and headless. The
host would need dual e'net, one for 712 array and one for the world, so I might use a
Linux PC. I'd also need a machine for development, presumably a PA-RISC Linux box.

Questions:

Any recommendations for a machine that could be both host (should support dual e'net) and
development box (faster than 712, old enough to be available used)?

For the array, what are the trade-offs between using your native Linux vs. the older
micro-kernel stuff, with or without Linux atop it? These will mostly be pure compute
engines, 100% of CPU into a single process for hours or days at a time. All they really
need to do is boot from the net, load one process, and exchange occasional packets with
the host. Multitasking, the ability to access a file system via NFS, to run PVM, to
report status via SNMP, ... would definitely be nice, but aren't actually essential.

Virtual memory would be a detriment. How hard is it to eliminate?

What is the state of PA-RISC Linux for this application? The only device driver I'd need
is ethernet.


P.S. A friend has a large pile of used HP machines, mostly at reasonable prices. 712s are
the low end of the range. Anyone in the Ottawa area who needs some, send mail.

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"Strelow, Ulrich" wrote:
     
>      2. The easiest way is to use rbootd. For this test you need a 
>      linux-x86 machine connect to the 712/100 via LAN:

Paul J.Y. Lahaie wrote:
     
> My 712 (a /60) uses bootp for network booting.  I thought only the
> older 700 classes used rboot for
> network booting.

I have tried rbootd on my 715/33 and it worked fine. I did not know that
the 
712s are special.

Ulrich
---------------------------------------------
Ulrich Strelow
<ulrich.strelow@schering.de or
ulrich_strelow@csi.com>
Berlin, Germany
     

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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ASP
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Matthew Wilcox wrote:
...
> The following devices _do_ go through ASP:
> 
> EISA, 8042, SCSI, FDDI, RS232, Centronics, Ethernet, Graphics (1 + 2), Audio.
> 
> which seems pretty comprehensive.  I'm wondering about slimming down our
> interrupt architecture for older machines; it's a trifle over-engineered
> for a machine which can't be expanded.

We need to be able to boot a CD on *any* HP box which parisc-linux
wants to support in order to install parisc-linux. If the kernel
modules will get rebuilt as part of a second pass to optimize code path
for older machines, go for it.

cheers,
grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ASP
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> which seems pretty comprehensive.  I'm wondering about slimming down our
> interrupt architecture for older machines; it's a trifle over-engineered
> for a machine which can't be expanded.

it is ?  Of course, you could hardcode the interrupt handlers in the ASP
main interrupt handler, so you would do

switch(ffs(mask)) {
case 0:
	return;
case 1:
	asp_something_interrupt();
	break;
case 2:
	asp_something_else_interrupt();
	break;
case 3:
	asp_keyboard_interrupt();
	break;
}

but my guess is this would just result in a jump table of function calls
rather than an indirect call - not going to improve performance measurably.

	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] keyboard adventures
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So, I got PS/2 keyboards pretty much working tonight.  The first major discov-
ery was the 8042-compatible chip used on i386s and most other architectures
translates the AT scancodes the keyboard sends to XT scancodes to send on to
the CPU  -  Lasi doesn't do that, but we do it in software to be able to use
i386's keymaps.

I copied large parts of pc_keyb.c in keyb_at.c which deals with AT->XT trans-
lation as well as providing the XT table interfaces so you should be able to
load keymaps aso.

SysRq seems to work well (well, SysRq-P (show regs) and SysRq-B (reboot) do),
the characters printed (-- %c --) match the key label.

I hope SysRq will be of some use in debugging some of the stuff I'm planning
to do, and we might even end up porting parts of kdb  -  so lots of fun ahead.

	Philipp Rumpf


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From: Philippe Benard <phi@hpfrcu03.france.hp.com>
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Subject: Re: [parisc-linux] ASP
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Xref: news.gmane.org gmane.linux.ports.parisc:6357

Philipp Rumpf wrote:
> 
> 
> but my guess is this would just result in a jump table of function calls
> rather than an indirect call - not going to improve performance measurably.
> 

I think it depends how compiled deal with pointer to function, in the
following example you got the asm code gened (with HP compiler), in compile #1
regular pointer to function, then the jump table is better
as the call to dyncall to perform the function call cost about dozen of
instruction, space register switching, etc...
On compile2 instructing the compiler that there is no shared lib (what does
happen on HP-UX kenel despite the DLKM, then the +ESfic canbe used greatly
reducing the pointer to function deref.

So I would say, if your compiler have a +ESfic kind of feature, you'd better
use the pointer to function array.

ic.c::
int f0(){}
int f1(){}
int f2(){}
int f3(){}
int (*fp[4])()={f0,f1,f2,f3};

f(i)
{ switch(i)
  { case 0:f0();break;
    case 1:f1();break;
    case 2:f2();break;
    case 3:f3();break;
   }

   (*fp[i])();

}

compile 1================================================
$ cc -S ic.c -O ; more ic.s
        .LEVEL  1.1

        .SPACE  $TEXT$,SORT=8
        .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=0x2c,CODE_ONLY,SORT=24
f0
        .PROC
        .CALLINFO FRAME=0
        .ENTRY
        .EXIT
        BV,N    %r0(%r2)        ;offset 0x0
        .PROCEND        ;out=28;



        .SPACE  $TEXT$
        .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=0x2c,CODE_ONLY,SORT=24
f1
        .PROC
        .CALLINFO FRAME=0
        .ENTRY
        .EXIT
        BV,N    %r0(%r2)        ;offset 0x8
        .PROCEND        ;out=28;





        .SPACE  $TEXT$
        .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=0x2c,CODE_ONLY,SORT=24
f2
        .PROC
        .CALLINFO FRAME=0
        .ENTRY
        .EXIT
        BV,N    %r0(%r2)        ;offset 0x10
        .PROCEND        ;out=28;



        .SPACE  $TEXT$
        .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=0x2c,CODE_ONLY,SORT=24
f3
        .PROC
        .CALLINFO FRAME=0
        .ENTRY
        .EXIT
        BV,N    %r0(%r2)        ;offset 0x18
        .PROCEND        ;out=28;



        .SPACE  $TEXT$
        .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=0x2c,CODE_ONLY,SORT=24
f
        .PROC
        .CALLINFO CALLER,FRAME=16,ENTRY_GR=%r3,SAVE_RP,ARGS_SAVED
        .ENTRY
        STW     %r2,-20(%r30)   ;offset 0x20
        STW,MA  %r3,64(%r30)    ;offset 0x24
        CMPIB,<<        3,%r26,$00000001        ;offset 0x28
        COPY    %r26,%r3        ;offset 0x2c
        CMPIB,=,N       3,%r3,$00000005 ;offset 0x30
        CMPIB,<<,N      1,%r3,$00000004 ;offset 0x34
        CMPIB,=,N       1,%r3,$00000003 ;offset 0x38
        CMPB,<>,N       %r3,%r0,$00000001       ;offset 0x3c
$00000002
        .CALL   RTNVAL=GR       ;out=28;
        B,L     f0,%r2  ;offset 0x40
        NOP             ;offset 0x44
        B       $00000001+4     ;offset 0x48
        ADDIL   LR'fp-$global$,%r27,%r1 ;offset 0x4c
$00000003
        .CALL   RTNVAL=GR       ;out=28;
        B,L     f1,%r2  ;offset 0x50
        NOP             ;offset 0x54
        B       $00000001+4     ;offset 0x58
        ADDIL   LR'fp-$global$,%r27,%r1 ;offset 0x5c
$00000004
        .CALL   RTNVAL=GR       ;out=28;
        B,L     f2,%r2  ;offset 0x60
        NOP             ;offset 0x64
        B       $00000001+4     ;offset 0x68
        ADDIL   LR'fp-$global$,%r27,%r1 ;offset 0x6c
$00000005
        .CALL   RTNVAL=GR       ;out=28;
        B,L     f3,%r2  ;offset 0x70
        NOP             ;offset 0x74
$00000001
        ADDIL   LR'fp-$global$,%r27,%r1 ;offset 0x78
        LDO     RR'fp-$global$(%r1),%r31        ;offset 0x7c
        LDW,S   %r3(%r31),%r22  ;offset 0x80
        .CALL   RTNVAL=GR       ;in=22;out=28;
        B,L     $$dyncall,%r31  ;offset 0x84
        COPY    %r31,%r2        ;offset 0x88
        LDW     -84(%r30),%r2   ;offset 0x8c
        BV      %r0(%r2)        ;offset 0x90
        .EXIT
        LDW,MB  -64(%r30),%r3   ;offset 0x94
        .PROCEND        ;in=26;out=28;



        .SPACE  $TEXT$
        .SUBSPA $CODE$
        .SUBSPA $CODE$
        .SUBSPA $CODE$
        .SUBSPA $CODE$
        .SUBSPA $CODE$
        .SPACE  $PRIVATE$,SORT=16
        .SUBSPA $DATA$,QUAD=1,ALIGN=8,ACCESS=0x1f,SORT=16
fp
        .ALIGN  8
        .WORD  P'f0
        .WORD  P'f1
        .WORD  P'f2
        .WORD  P'f3
        .IMPORT $global$,DATA
        .SPACE  $TEXT$
        .SUBSPA $CODE$
        .EXPORT f0,ENTRY,PRIV_LEV=3,RTNVAL=GR
        .SUBSPA $CODE$
        .EXPORT f1,ENTRY,PRIV_LEV=3,RTNVAL=GR
        .SUBSPA $CODE$
        .EXPORT f2,ENTRY,PRIV_LEV=3,RTNVAL=GR
        .SUBSPA $CODE$
        .EXPORT f3,ENTRY,PRIV_LEV=3,RTNVAL=GR
        .SPACE  $PRIVATE$
        .SUBSPA $DATA$
        .EXPORT fp
        .SPACE  $TEXT$
        .SUBSPA $CODE$
        .EXPORT f,ENTRY,PRIV_LEV=3,ARGW0=GR,RTNVAL=GR
        .IMPORT $$dyncall,MILLICODE
        .END


compile 2=======================================================
$ cc -S ic.c +ESfic -O; more ic.s
        .LEVEL  1.1

        .SPACE  $TEXT$,SORT=8
        .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=0x2c,CODE_ONLY,SORT=24
f0
        .PROC
        .CALLINFO FRAME=0
        .ENTRY
        .EXIT
        BV,N    %r0(%r2)        ;offset 0x0
        .PROCEND        ;out=28;



        .SPACE  $TEXT$
        .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=0x2c,CODE_ONLY,SORT=24
f1
        .PROC
        .CALLINFO FRAME=0
        .ENTRY
        .EXIT
        BV,N    %r0(%r2)        ;offset 0x8
        .PROCEND        ;out=28;



        .SPACE  $TEXT$
        .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=0x2c,CODE_ONLY,SORT=24
f2
        .PROC
        .CALLINFO FRAME=0
        .ENTRY
        .EXIT
        BV,N    %r0(%r2)        ;offset 0x10
        .PROCEND        ;out=28;



        .SPACE  $TEXT$
        .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=0x2c,CODE_ONLY,SORT=24
f3
        .PROC
        .CALLINFO FRAME=0
        .ENTRY
        .EXIT
        BV,N    %r0(%r2)        ;offset 0x18
        .PROCEND        ;out=28;



        .SPACE  $TEXT$
        .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=0x2c,CODE_ONLY,SORT=24
f
        .PROC
        .CALLINFO CALLER,FRAME=80,ENTRY_GR=%r3,SAVE_RP,ARGS_SAVED
        .ENTRY
        STW     %r2,-20(%r30)   ;offset 0x20
        STW,MA  %r3,128(%r30)   ;offset 0x24
        CMPIB,<<        3,%r26,$00000001        ;offset 0x28
        COPY    %r26,%r3        ;offset 0x2c
        CMPIB,=,N       3,%r3,$00000005 ;offset 0x30
        CMPIB,<<,N      1,%r3,$00000004 ;offset 0x34
        CMPIB,=,N       1,%r3,$00000003 ;offset 0x38
        CMPB,<>,N       %r3,%r0,$00000001       ;offset 0x3c
$00000002
        .CALL   RTNVAL=GR       ;out=28;
        B,L     f0,%r2  ;offset 0x40
        NOP             ;offset 0x44
        B       $00000001+4     ;offset 0x48
        ADDIL   LR'fp-$global$,%r27,%r1 ;offset 0x4c
$00000003
        .CALL   RTNVAL=GR       ;out=28;
        B,L     f1,%r2  ;offset 0x50
        NOP             ;offset 0x54
        B       $00000001+4     ;offset 0x58
        ADDIL   LR'fp-$global$,%r27,%r1 ;offset 0x5c
$00000004
        .CALL   RTNVAL=GR       ;out=28;
        B,L     f2,%r2  ;offset 0x60
        NOP             ;offset 0x64
        B       $00000001+4     ;offset 0x68
        ADDIL   LR'fp-$global$,%r27,%r1 ;offset 0x6c
$00000005
        .CALL   RTNVAL=GR       ;out=28;
        B,L     f3,%r2  ;offset 0x70
        NOP             ;offset 0x74
$00000001
        ADDIL   LR'fp-$global$,%r27,%r1 ;offset 0x78
        LDO     RR'fp-$global$(%r1),%r31        ;offset 0x7c
        LDW,S   %r3(%r31),%r24  ;offset 0x80
        STW     %r24,-112(%r30) ;offset 0x84
        LDW     -112(%r30),%r23 ;offset 0x88
        STW     %r23,-120(%r30) ;offset 0x8c
        .CALL   RTNVAL=GR       ;out=28;
        BE,L    0(%sr4,%r23),%r31       ;offset 0x90
        COPY    %r31,%r2        ;offset 0x94
        LDW     -148(%r30),%r2  ;offset 0x98
        LDW     -120(%r30),%r23 ;offset 0x9c
        BV      %r0(%r2)        ;offset 0xa0
        .EXIT
        LDW,MB  -128(%r30),%r3  ;offset 0xa4
        .PROCEND        ;in=26;out=28;



        .SPACE  $TEXT$
        .SUBSPA $CODE$
        .SUBSPA $CODE$
        .SUBSPA $CODE$
        .SUBSPA $CODE$
        .SUBSPA $CODE$
        .SPACE  $PRIVATE$,SORT=16
        .SUBSPA $DATA$,QUAD=1,ALIGN=8,ACCESS=0x1f,SORT=16
fp
        .ALIGN  8
        .WORD  P'f0
        .WORD  P'f1
        .WORD  P'f2
        .WORD  P'f3
        .IMPORT $global$,DATA
        .SPACE  $TEXT$
        .SUBSPA $CODE$
        .EXPORT f0,ENTRY,PRIV_LEV=3,RTNVAL=GR
        .SUBSPA $CODE$
        .EXPORT f1,ENTRY,PRIV_LEV=3,RTNVAL=GR
        .SUBSPA $CODE$
        .EXPORT f2,ENTRY,PRIV_LEV=3,RTNVAL=GR
        .SUBSPA $CODE$
        .EXPORT f3,ENTRY,PRIV_LEV=3,RTNVAL=GR
        .SPACE  $PRIVATE$
        .SUBSPA $DATA$
        .EXPORT fp
        .SPACE  $TEXT$
        .SUBSPA $CODE$
        .EXPORT f,ENTRY,PRIV_LEV=3,ARGW0=GR,RTNVAL=GR
        .END

======================================================================


--
mailto:phi@hpfrcu81.france.hp.com
WTEC Project. Kernel debugging tools


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Subject: [parisc-linux] 715 useful
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I've got keyboard input working on the 715/33 (should also work on 715/50
and 715/75).  There's still some bits which I don't want to commit, so you
can ftp those from
puffin.external.hp.com/pub/parisc/src/patch-715-19991113
if you want to type amazing sash commands on your 715.  try `help' as your
first one.

For the machines which have ASP, am I right in saying they have no other
sources of interrupts?  ie what I want to do is:

if we detect an ASP, set the interrupt routine to load the IRR from ASP
and then only make one pass through do_irq_mask instead of two.

This lets me not bother which irq line ASP is interrupting on, at the
expense of not being able to take interrupts from any other source.
And it'll reduce interrupt latency on those older machines with ASP,
so it seems like a win, unless I'm wrong and it's possible to add other
sources of interrupt to them.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: Re: [parisc-linux] 715 useful
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> For the machines which have ASP, am I right in saying they have no other
> sources of interrupts?  ie what I want to do is:

Under hpux 10.X, I was told that the NCR 710/720 controller devices are
sources of interrupts.  They do this by writing to the processor.  Thus,
it appears they bypass the ASP.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Alex deVries <adevries@thepuffingroup.com>
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On Sat, 13 Nov 1999, Matthew Wilcox wrote:
> For the machines which have ASP, am I right in saying they have no other
> sources of interrupts?  ie what I want to do is:

I'm interpretting this question as:

"For machines which have ASP, am I right in saying that no other IO
devices apart from ASP generate interrupts to the CPU?"

I think the answer to that question is no, because:
- they have GSC slots, so you could have a card mode lasi or dino device
- doesn't WAX have it's own interrupts?

However, you might be able to set it up so that you still get the
optimization if at runtime it's found that the ASP is the only detected
device.

Did I interpret your question properly?

- Alex


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On Sat, 13 Nov 1999, John David Anglin wrote:
> > For the machines which have ASP, am I right in saying they have no other
> > sources of interrupts?  ie what I want to do is:
> 
> Under hpux 10.X, I was told that the NCR 710/720 controller devices are
> sources of interrupts.  They do this by writing to the processor.  Thus,
> it appears they bypass the ASP.

I think those are routed through ASP just like they are on Lasi.  

At some point we need to be concerned with Zalon interrupt handling too.

- Alex


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> On Sat, 13 Nov 1999, John David Anglin wrote:
> > > For the machines which have ASP, am I right in saying they have no other
> > > sources of interrupts?  ie what I want to do is:
> > 
> > Under hpux 10.X, I was told that the NCR 710/720 controller devices are
> > sources of interrupts.  They do this by writing to the processor.  Thus,
> > it appears they bypass the ASP.
> 
> I think those are routed through ASP just like they are on Lasi.  
> 
> At some point we need to be concerned with Zalon interrupt handling too.

I was having problems with SCSI timeouts and LPMCs on my 735 after upgrading
to 10.20.  Grant Grundler wrote:

> In looking at the PA7300LC ERS, I see that detection of out of range DMA
> addresses has to be enabled in the MIOC for LPMCs to occur as a result of
> these events.

This is really interesting.

> 
> >From page 83 in the discussion on "System Start-UP",
> "MIOC_CONTROL (address 0xF###'F080). This register contains bits that control
> both the I/O system and the memory system. Refer to the memory controller
> section for information on setting the memory-related bits; the I/O-related
> bits should be set as follows:
> * set dma_noecc if the PA7300LC should not flag bad data during DMA reads;
> normally, if a double-bit memory error is detected during an outbound DMA
> transaction, the bad data word(s) are marked with bad parity on the GSC bus;
> * set lpmc_en to detect and generate an LPMC on DMA accesses to memory
> space that fall outside of the system's installed physical memory;

The SCSI driver will attempt to use "Transaction based Interrupts"
only for GSC SCSI cards (use "Zalon" front end). The c720 driver programs
the card to generate interrupts by writing to the Processor! (ie way above
memory). I wonder if this is causing the LPMC's.

You need to patch out code in c720_init() which calls wsio_get_interrupts().
Don't patch out the call. Rather NOP out the STW's one at a time which
should immediately follow that  call until it works.
Should be two places the return value is stored and one of them
enables transaction based interrupts.

> * set fast_memory if dwmode (also in MIOC_CONTROL) is set;
> * set lopowhilat if the PA7300LC's power consumption is critical, and you
> wish to slightly reduce it, even at the expense of increasing CPU to I/O late
>   ncy;
> * (set dma_nocache, pgape, and pgdpe only for diagnostic purposes)."
> 
> If I knew where where lpmc_en was set in 10.20, maybe I could turn it off
> for testing.

Very likely early during processor initialization. I don't know that code.

grant

> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-660
>   5)

Grant Grundler
Unix Developement Lab
+1.408.447.7253


-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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> For the machines which have ASP, am I right in saying they have no other
> sources of interrupts?  ie what I want to do is:
> 
> if we detect an ASP, set the interrupt routine to load the IRR from ASP
> and then only make one pass through do_irq_mask instead of two.
> 
> This lets me not bother which irq line ASP is interrupting on, at the
> expense of not being able to take interrupts from any other source.
> And it'll reduce interrupt latency on those older machines with ASP,
> so it seems like a win, unless I'm wrong and it's possible to add other
> sources of interrupt to them.

Matthew,  I think you are overestimating the negative impact this code has on
interrupt latency.  Furthermore, I do not believe solving a problem that is a
limitation of the interface used - our current driver table device management
system does not allow offsetting IRQ numbers in the same way a linked list
would (and does, for PCI).

The very same problem you want to avoid has to be solved in a clean way for Lasi,
and handling it different on otherwise very similar machines (712, 715) does
more to confuse developers and users (for whom we cannot totally avoid contact
with virtual IRQ numbers) than it does to improve the actual performance of the
kernel.

If you should disagree on the order of performance loss we are talking about here,
please provide benchmarks - should the delay turn out to be unacceptable, we need
to find a way of lowering it, even if it does mean to obfuscate code.


	Philipp Rumpf

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The hppa-linux project (soon to be renamed to parisc-linux) is really
concerned with the development of the monolithic port of linux to that
hardware.  MkLinux is completely different.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
HPPA/Linux Porting Team


On Wed, 3 Mar 1999, Takeshi Maruyama wrote:

> Hello,
> 
> I installed MkLinux for PA-RISC  to my HP712/60.
> The console cannot be displayed with my HP712.
> Is the console displayed in your HP712?
> 
> --
> Takeshi Maruyama. Iwata-city.
> maru@hans.or.jp
> 
> 
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From: Mike Hibler <mike@fast.cs.utah.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re:  [parisc-linux] 715 useful
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> Date: Sat, 13 Nov 1999 19:21:50 +0100
> From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
> To: parisc-linux@thepuffingroup.com
> Subject: [parisc-linux] 715 useful
> 
> For the machines which have ASP, am I right in saying they have no other
> sources of interrupts?
> 

The interval timer, assuming you are using the interrupt feature to
keep time.


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: [parisc-linux] hp700.c and hp800.c ?
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Do we really need hp700.c and hp800.c in arch/parisc/kernel ?


- Alex

-- 
Alex deVries <adevries@thepuffingroup.com>
Vice President Engineering
The Puffin Group


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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] arch/parisc/kernel/realmode_setup.c Question
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Xref: news.gmane.org gmane.linux.ports.parisc:6366

Paul,

I have started working on getting the kernel to boot on the PA2.0
architecture again, and I see the you and others have been doing
lots of work with the initialization code.  (Nice job to everyone btw,
the code is a lot easier to figure out for a newbie like me! :)

I was looking at the following section of code and I have a
discrepancy that I wanted to make you aware of.  I don't know how
to fix it yet, but I will continue to look.

I am working on a C200+ which has the PA2.0 processor, so in the
the following section of code it should give me an error during the
BTLB initialization, but during the PDC_BTLB_INSERT pret is set
to 0, so the check for non-PA1.1 architecture's fail.

I will continue to look through the documentation that has been
previously pointed out, and the devresource page  pointed out by
Frank Rowand to see if I can find a solution to the problem.

Thanks,

Ryan Bradetich


[Taken from arch/parisc/kernel/realmode_setup.c]

 /* This whole VM setup stuff may be removed ultimately.  It seems
   * to me that once the TLB miss handlers are ready, we just switch
   * to VM and let them handle TLB population -PB
   */

  pret = (*PAGE0->mem_pdc)(
  PDC_BLOCK_TLB,
  PDC_BTLB_INSERT,
  0x00000000,  /* MS bits, virt page number */
  0xc0000,  /* LS bits, virt page number */
  0x00000000,  /* Physical page number */
  4096,   /* # pages to map */
  0x03000000,  /* access rights, etc... */
  0);   /* slot number */

  if (pret != 0)
 {
       mprintf("PDC_BTLB_INSERT returned %d\n", pret);
      if (pret == -1)
     {
        mprintf("Looks like there's no BTLB on this box, so it's
probably\n"
                       "either PA1.0 or PA2.0.  In any case we're
screwed for now\n");
        led_flash();
     }
}



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On Sun, 14 Nov 1999, Ryan Bradetich wrote:
> I have started working on getting the kernel to boot on the PA2.0
> architecture again, and I see the you and others have been doing
> lots of work with the initialization code.  (Nice job to everyone btw,
> the code is a lot easier to figure out for a newbie like me! :)

Same here.

> I am working on a C200+ which has the PA2.0 processor, so in the
> the following section of code it should give me an error during the
> BTLB initialization, but during the PDC_BTLB_INSERT pret is set
> to 0, so the check for non-PA1.1 architecture's fail.

It's a bit unclear to me which processor is actually in there, but I
believe it's an 8000, so it and the firmware may in fact support
PDC_BTLB_INSERT, which means that the kernel might work properly.

I have a C3000 which does *NOT* implement PDC_BTLB functions.

It sounds like the error message is actually a bit misleading.

Instead of:

         mprintf("Looks like there's no BTLB on this box, so it's > probably\n"
                       "either PA1.0 or PA2.0.  In any case we're screwed for now\n");

it should be:

"Looks like there's no BTLB on this box, so it's either a PA1.0 or a PA2.0
that doesn't implement BTLBs"

How far does it actually boot though?

- Alex


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Alex deVries wrote:

> On Sun, 14 Nov 1999, Ryan Bradetich wrote:
> > I have started working on getting the kernel to boot on the PA2.0
> > architecture again, and I see the you and others have been doing
> > lots of work with the initialization code.  (Nice job to everyone btw,
> > the code is a lot easier to figure out for a newbie like me! :)
>
> Same here.
>
> > I am working on a C200+ which has the PA2.0 processor, so in the
> > the following section of code it should give me an error during the
> > BTLB initialization, but during the PDC_BTLB_INSERT pret is set
> > to 0, so the check for non-PA1.1 architecture's fail.
>
> It's a bit unclear to me which processor is actually in there, but I
> believe it's an 8000, so it and the firmware may in fact support
> PDC_BTLB_INSERT, which means that the kernel might work properly.
>
> I have a C3000 which does *NOT* implement PDC_BTLB functions.
>
> It sounds like the error message is actually a bit misleading.
>
> Instead of:
>
>          mprintf("Looks like there's no BTLB on this box, so it's > probably\n"
>                        "either PA1.0 or PA2.0.  In any case we're screwed for now\n");
>
> it should be:
>
> "Looks like there's no BTLB on this box, so it's either a PA1.0 or a PA2.0
> that doesn't implement BTLBs"
>
> How far does it actually boot though?

Same as always (their is just more console output before it hangs).  Here is a cut/paste
of the console messages from the serial console.


Firmware Version  5.2

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache
  ---------  --------   ---------------------  -----------------  -------------
      0      200 MHz    Active                 Functional         512 KB/1 MB

  Central Bus Speed (in MHz) :        120

  Available memory (bytes)    : 268435456
  Good memory required (bytes):   21827584

  Primary boot path:    FWSCSI.5.0
  Alternate boot path:  SESCSI.6.0
  Console path:         SERIAL_1.9600.8.none
  Keyboard path:        PS2

CPU 0
WARNING:  Self tests have been disabled as a result of FASTBOOT
          being enabled.  To enable self tests, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.
WARNING:  Memory has been initialized, but not tested as a result of
          FASTBOOT being enabled.  To test memory, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


------- Main Menu -------------------------------------------------------------

        Command                         Description
        -------                         -----------
        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration [<command>]       Access Configuration menu/commands
        INformation [<command>]         Access Information menu/commands
        SERvice [<command>]             Access Service menu/commands


        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command > bo lan <ip>
Interact with IPL (Y, N, Q)?> n

Booting...
Network Station Address 0060b0-ea9875
System IP Address  <ip>
Server IP Address <ip>

Boot IO Dependent Code (IODC) revision 2


HARD Booted.

------------------------------------------------------------------------------

PARISC/Linux Bootstrap Version 0.6 (non-interactive)
By Helge Deller & Jason Eckhardt
Built Sat Nov 13 17:17:38 MST 1999 by root@vega

Reading parameters...done.

Loading PA-RISC/Linux Kernel...
SOM-Kernel:
aux_header_location: 00000080
som       : 00200080
exec_dfile: 000C8000
exec_dsize: 00082000
exec_dmem : C009A000
exec_tfile: 0003E000
exec_tsize: 00089008
exec_tmem : C0010000
Code at 0x00010000, size=0x00089008
Data at 0x0009A000, size=0x00082000
BSS  at 0x0011C000.

Transferring control to kernel. (At entry point 0x00010000)
kernel(0x00148C80, 0x00504010, 0x00148C80, 0x00016640)
Clear BSS 0x0011B048 --> 0x0013D690
Boot loader: PA/Linux, maybe PALO
realmode_setup exiting

... At this point it hangs.  Before, it always used to hang at:
Transferring control to kernel. (At entry point 0x00010000)

I still do not believe it ever successfully finished the rfi in head.S :(
I still need to do some more research to verify this, but that is my
gut feeling right now.

Ryan Bradetich

>
> - Alex
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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From: Alex deVries <adevries@thepuffingroup.com>
|On Sat, 13 Nov 1999, Matthew Wilcox wrote:
|> For the machines which have ASP, am I right in saying they have no other
|> sources of interrupts?  ie what I want to do is:
|
|I'm interpretting this question as:
|
|"For machines which have ASP, am I right in saying that no other IO
|devices apart from ASP generate interrupts to the CPU?"
|
|I think the answer to that question is no, because:
|- they have GSC slots, so you could have a card mode lasi or dino device
|- doesn't WAX have it's own interrupts?

Remember, ASP only exists on boxes that use the VSC/SGC I/O bus, i.e.
boxes that are pre-GSC.  Pre-GSC boxes will never have GSC slots,
or WAX, or Zalon.

The only expansion slots these boxes have are EISA, and EISA interrupts
come through ASP.

I learned a little more about these boxes friday.  The memory controller
in early 715s (/33, /50, /75) is called spider.  SPider actually 
sends the bus transaction to the processor to interrupt it.  It 
can interrupt the processor for any of its own reasons (memory
error, bus timeout, etc.)  It has one external interrupt pin, and
that is hooked to ASP.  I also did a quick scan through the docs
for the viper meomry controller used in 720/730/750, and it has one
external interrupt pin, so I think the assumption that all I/O 
interrupts come through ASP is valid.

Unfortunately spider was designed by the ex-Apollo floks in CHelmsford,
who basiclaly all left the company when R&D was consolidated in
Ft. COllins.  SO I have no good sources for an ERS for the spider chip.

	-Bill Katz


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Subject: [parisc-linux] real mode stuff.
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So, realmode_setup.c is a good start, but it needs a bit of a cleanup.  

Stuff I'm working on:

- Philipp and I agree that we should just create arch/parisc/kernel/real
for all the real mode stuff
- creating arch/parisc/real/pdc.c
- moving some stuff in arch/parisc/kernel/realmode_setup.c to
arch/parisc/real/setup.c or similiar.

Let me know if there's objections.  I'll wait until Paul has a chance to
read this before committing.

- Alex

-- 
Alex deVries <adevries@thepuffingroup.com>
Vice President Engineering
The Puffin Group


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On Sun, 14 Nov 1999, Ryan Bradetich wrote:
> > How far does it actually boot though?
> 
> Same as always (their is just more console output before it hangs).  Here is a cut/paste
> of the console messages from the serial console.

Hm.  I'm working on inserting a bazillion chassis_write() calls so that I
can see exactly where it dies...

- Alex



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"John David Anglin" wrote:
> > For the machines which have ASP, am I right in saying they have no other
> > sources of interrupts?  ie what I want to do is:
> 
> Under hpux 10.X, I was told that the NCR 710/720 controller devices are
> sources of interrupts.  They do this by writing to the processor.  Thus,
> it appears they bypass the ASP.

As noted later, I was the source of John's information.
More notes:

o This is a the HP-UX c720 driver taking advantage of the architecture.
  Linux SCSI drivers won't do that (yet).

o Alex misunderstood - the HP-UX c720 driver *can* bypass all line
  based interrupt support (ASP/LASI/Dino/...). It only does it for
  a card which already uses transaction based interupts (TBIs)
  (HSC F/W SCSI). TBIs are required to work on HSC bus to meet
  PA I/O Arch and the c720 driver was coded with this safe assumption.
  TBIs sadly do NOT work under PCI on all platforms.

o Someone also already pointed out the timer uses the processor
  interrupts. I don't know if WAX (EISA) has it's own IAR but
  would expect it too. My advice: boot HP-UX 10.20 or 11.X,
  run Q4 and include pa_intr.pl, "run DumpEIRR" and you'll see
  exactly which EIR bits are used.

o and lastly, I too am skeptical (like Philipp) how useful this
  optimization is. I can help measure it once the box is running.
  I have my own set of optimizations I *think* we need. Philipp
  agreed we would put them in once I had measurements showing
  the improvement.

cheers,
grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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Alex deVries wrote:
> Do we really need hp700.c and hp800.c in arch/parisc/kernel ?

I sure hope not.

10.20 and previous releases shipped seperate binaries mostly
because the organizations didn't agree on product requirements.
Not because the technology was so different. They just had different
market requirements.

11.X releases only ship one binary which runs on both 700s and 800s.

grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253

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Hi,
	Maybe I just missed it, but is the source for the bootloader out 
there anywhere? I'd like to start looking at the code....

I've been working with a friend to do a monolithic port for a while, and 
we'd gotten cross compilers and the beginings of the bootloader written. Now
that there are others working on it, we'll abandon our efforts and concentrate
on your code base.

-Erik

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On Sun, 14 Nov 1999, Alex deVries wrote:

> - Philipp and I agree that we should just create arch/parisc/kernel/real
> for all the real mode stuff
> - creating arch/parisc/real/pdc.c
> - moving some stuff in arch/parisc/kernel/realmode_setup.c to
> arch/parisc/real/setup.c or similiar.
> 
> Let me know if there's objections.  I'll wait until Paul has a chance to
> read this before committing.

How much real mode code is there?  The i386 processor starts up in
a real mode as well.  Linux enters protected mode in head.S very
quickly.  If real mode on the PA-RISC is only used during
initialization, then I don't think that it warrants a separate
directory.  If real mode is used during normal operation, then I say
sure.

Of course, that's my opinion, which means little.

-- 
David Kennedy
The Puffin Group


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Subject: [parisc-linux] depi?
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What does this actually do:

        ; Get ready for phys->virt transition
        ; First order of business is to adjust some pointers
        depi            3,1,2,%arg0     ; phys->virt(free mem ptr)
        depi            3,1,2, %sp      ; phys->virt SP
        depi            3,1,2, %dp      ; p2v DP

in head.S?

I don't have a 'depi' in the index of my PA 2.0 assembler book.  I have a
depwi and a depdi though.

- Alex "I shot the sheriff, but I did not shoot the depdi" deVries

-- 
Alex deVries <adevries@thepuffingroup.com>
Vice President Engineering
The Puffin Group


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  In message <Pine.LNX.4.10.9911150307300.7996-100000@vodka.thepuffingroup.com>
you write:
  > 
  > What does this actually do:
  > 
  >         ; Get ready for phys->virt transition
  >         ; First order of business is to adjust some pointers
  >         depi            3,1,2,%arg0     ; phys->virt(free mem ptr)
  >         depi            3,1,2, %sp      ; phys->virt SP
  >         depi            3,1,2, %dp      ; p2v DP
  > 
  > in head.S?
  > 
  > I don't have a 'depi' in the index of my PA 2.0 assembler book.  I have a
  > depwi and a depdi though.
HP changed a large amount of their assembly syntax for PA2.0.

depi == depwi

Basically they made the extract/deposit instructions explicitly mention
their size [word vs double word].
jeff


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Subject: Re: [parisc-linux] depi?
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Re:

>         ; Get ready for phys->virt transition
>         ; First order of business is to adjust some pointers
>         depi            3,1,2,%arg0     ; phys->virt(free mem ptr)
>         depi            3,1,2, %sp      ; phys->virt SP
>         depi            3,1,2, %dp      ; p2v DP

DEPI is "Deposite Immediate".  depi 3,1,2, %arg0
drops the value 3 into the upper 2 bits of register arg0.

IIRC, it's:  DEPI immediate_value, right_most_bit#, #bits, target_register

But...strange code.  It's setting the upper 2 bits of R26, R30, and R27.

> in head.S?
> 
> I don't have a 'depi' in the index of my PA 2.0 assembler book.  I have a
> depwi and a depdi though.
> 
> - Alex "I shot the sheriff, but I did not shoot the depdi" deVries
> 
> -- 
> Alex deVries <adevries@thepuffingroup.com>
> Vice President Engineering
> The Puffin Group
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html          www.allegro.com/sieler


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] real mode stuff.
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> - Philipp and I agree that we should just create arch/parisc/kernel/real
> for all the real mode stuff

Just to clarify, the directory we're talking about "arch/parisc/real" here,
not about a subdirectory of "arch/parisc/kernel".

> - creating arch/parisc/real/pdc.c

this one I'm not sure about.

arch/parisc/kernel/pdc.c and arch/parisc/real/pdc.c can be identical except
for the definition of "pdc_wrapper", and keeping an exact copy of code might
not be a good idea.

OTOH, it is extremely unlikely this code will have "real" bugs, so this is
probably less of a crime than using symlinks, #including C files, mutating
the main part of pdc.c into a header file or similar workarounds were.

> - moving some stuff in arch/parisc/kernel/realmode_setup.c to
> arch/parisc/real/setup.c or similiar.

All code in arch/parisc/real will be run in real-mode (with the exception of
some glue code to be called out of / return to protected mode).

All code run in real-mode will be in arch/parisc/real (with the temporary
exception of the _gsc_(read|write)[bwl] functions which currently disable data
translation for one or two instructions because I don't feel confident enough
to map the I/O space (which can do bad things if you write to it) into kernel
virtual memory (i.e. the memory wild pointers will refer to) just yet).

We are not just going to move "some stuff" to arch/parisc/real (and I do not
think this is what Alex said), we are going to move all real-mode code there.

	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] hp700.c and hp800.c ?
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> > Do we really need hp700.c and hp800.c in arch/parisc/kernel ?
> I sure hope not.

We don't, and there are more files in arch/parisc we don't need.  IMO,
these are:

most of /boot as we really should include nothing more than a minimal boot
  loader in the kernel sources

kernel/hp700.c
kernel/hp800.c
kernel/unaligned.c (unaligned data references are unpredictable behaviour
	iirc, so we shouldn't pretend to handle them correctly but have a
	nice clean debuggable Oops)
mm/pa11.c
mm/pa20.c (the differences between PA1.1 and PA2.0(narrow) are minimal,
	and the current files are as overgeneralized as it was necessary
	to overgeneralize to support all MIPS architectures)


	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] arch/parisc/kernel/realmode_setup.c Question
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Xref: news.gmane.org gmane.linux.ports.parisc:6380

> > How far does it actually boot though?

> Transferring control to kernel. (At entry point 0x00010000)
> kernel(0x00148C80, 0x00504010, 0x00148C80, 0x00016640)
> Clear BSS 0x0011B048 --> 0x0013D690
> Boot loader: PA/Linux, maybe PALO
> realmode_setup exiting
> 
> ... At this point it hangs.  Before, it always used to hang at:
> Transferring control to kernel. (At entry point 0x00010000)
> 
> I still do not believe it ever successfully finished the rfi in head.S :(
> I still need to do some more research to verify this, but that is my
> gut feeling right now.

This sounds right.  It is indeed possible we cannot install a BTLB entry on
your CPU (and the firmware just reports success as it is free to according to
the documentation) or the BTLB entry gets removed before we get the chance to
do our first printk.

For both problems, the answer is within reach, and is called "a separate direc-
tory for real-mode code".  Being able to debug unexpected TLB insertion handler
calls is one of the immediate advantages of having this directory, and sure is
going to be useful in the future (and would have been useful in the past).

Wanna bet we're going to get that machine to a sash prompt this week ?

	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] 715 useful
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Xref: news.gmane.org gmane.linux.ports.parisc:6381

> o Alex misunderstood - the HP-UX c720 driver *can* bypass all line
>   based interrupt support (ASP/LASI/Dino/...). It only does it for
>   a card which already uses transaction based interupts (TBIs)
>   (HSC F/W SCSI). TBIs are required to work on HSC bus to meet
>   PA I/O Arch and the c720 driver was coded with this safe assumption.
>   TBIs sadly do NOT work under PCI on all platforms.

In fact, to the best of my knowledge, software-visible TBIs are unique to
PA-RISC among all common architectures.  Am I wrong ?

> o and lastly, I too am skeptical (like Philipp) how useful this
>   optimization is. I can help measure it once the box is running.
>   I have my own set of optimizations I *think* we need. Philipp
>   agreed we would put them in once I had measurements showing
>   the improvement.

measurements showing the improvement to be significant enough to put what
otherwise has all the features of a nasty hack in the API.  What am I afraid
is going to happen is:

1. we find out there is an interesting, though not essential, performance win
2. we implement the necessary API
3. the API gets used in exactly one driver
4. the only two developers running machines making use of the driver disappear
   for a week
5. we break the driver
6. we have a long discussion, and fix the API
goto step 4.

So the possibility of just removing the interface support for using TBIs on
busses for which TBI is not the classical interrupt mechanism doesn't sound
all that bad compared to leaving it in, and if someone is really convinced
TBIs over PCI are worth implementing, I'd suggest to do some benchmarks as
soon as possible (i.e. _now_ for PA1.1 boxes).


	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] real mode stuff.
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> How much real mode code is there?

> The i386 processor starts up in a real mode as well.  Linux enters protected
> mode in head.S very quickly.

On an i386, in fact, there is practically no reason to re-enter real mode after
you enabled address translation.

On PA-RISC, there is.

We have to get back into real mode to call firmware.

We get back into real mode when an interruption (HP's term for what the rest
of the world calls exception, fault, trap, interrupt or whatever) occurs, and
cannot re-enable address translation in all cases (the obvious ones being TLB
insert traps (we currently _do_ re-enable address translation, but we are rely-
ing on undefined behaviour in doing so), the less obvious one HPMC (as it is
not guaranteed we didn't get it because our MMU just died or the RAM containing
the page tables disappeared) and whichever interruptions show up in profiles
(we need floating-point completion to get IEEE-compliant behaviour in some
cases, and this might hit FP-intensive code)).

> If real mode on the PA-RISC is only used during initialization, then
> I don't think that it warrants a separate directory.  If real mode is
> used during normal operation, then I say sure.

For real-mode code executed during boot, there are well-defined locations
(arch/yourarch/boot, arch/yourarch/kernel/head.S), and we could just go on
stuffing real-mode code into files in arch/parisc/kernel, but

 a) we want to have some of this code written in C, which is difficult / un-
obvious with the real-mode files residing in the same directory as the rest
of the kernel.

 b) we might want to reuse some of the code for a more sophisticated boot
loader (which some people seem to have decided will be called PALO (boring
name, isn't it ?)).

 c) a lot of this code is very critical, will need to be changed for both SMP
systems and PA2.0 ones, and deserves the attention of old-time PA-RISC assembly
hackers much more than Linux-specific code in arch/parisc/kernel.

 d) some day, the parisc port won't be a new port stealing codes from the
established old ones, but some new port will steal code from us.  Most of the
code in arch/parisc/real is extremely unportable, so we can just tell whoever
is going to do that port to skip this directory.

I hope this clarifies things a bit.

	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] depi?
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>         ; Get ready for phys->virt transition
>         ; First order of business is to adjust some pointers
>         depi            3,1,2,%arg0     ; phys->virt(free mem ptr)
>         depi            3,1,2, %sp      ; phys->virt SP
>         depi            3,1,2, %dp      ; p2v DP
> 
> in head.S?
> 
> I don't have a 'depi' in the index of my PA 2.0 assembler book.  I have a
> depwi and a depdi though.

This should be equivalent to what depwi is in PA 2.0 (some mnemonics changed).

More importantly, those instructions shouldn't be here.  There are standard
macros tophys and tovirt defined to do just the right thing to translate
logical addresses from/to physical ones.

Someone should go around and clean it up.  If your file uses depi to do what
tophys / tovirt should do, you have 24 hours to clean it up.  If you don't,
I'll clean up the rest of your file as well.  You have been warned.

	Philipp Rumpf

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Alex deVries and I have just returned to the Great White North from a very
successful and productive week at Linux World Expo in San Jose,
California. (I must say though, that the conference was vastly difference
from any other Linux conference, it was very much a suitfest as opposed to
the geekfests that have been the norm to date.)

We spent a fair bit of time at HP's booth talking to people about the
porting port, as well as a morning and an afternoon at the labs in
Cupertino.

We talked with a lot of very knowledgable people and have arranged for the
release of documentation and other resources.

As you may have heard:

  "HP will contribute marketing and technical resources to the
  effort. The Puffin Group will also have access to HP technology,
  tools and solutions offered through HP's new Open Source
  Solutions Operation."

Special thanks to Chris Maitz, Cary Coutant, John Sontag, Rich Rauenzahn,
Wayne Caccamo, and the many others that took the time to speak with us and
provide support for this project. 

Stay tuned for more information on documentation which will be released
shortly through the project web site.

Chris

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Subject: Re: [parisc-linux] depi?
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> >         ; First order of business is to adjust some pointers
> >         depi            3,1,2,%arg0     ; phys->virt(free mem ptr)
> >         depi            3,1,2, %sp      ; phys->virt SP
> >         depi            3,1,2, %dp      ; p2v DP
> 
> DEPI is "Deposite Immediate".  depi 3,1,2, %arg0
> drops the value 3 into the upper 2 bits of register arg0.
> 
> IIRC, it's:  DEPI immediate_value, right_most_bit#, #bits, target_register
> 
> But...strange code.  It's setting the upper 2 bits of R26, R30, and R27.

The way physical memory is mapped to kernel virtual memory is (with exceptions):

physical address P is mapped at virtual address P + PAGE_OFFSET.

PAGE_OFFSET currently is 0xc000 0000 which was a bad value and will be changed
to either 0x8000 0000 or 0xe000 0000 in the near future.  This is one of the
reasons you should use tophys and tovirt instead of doing the depi by hand.

Probably most of the depis are my code and I think there are several places
where I am still hard-coding 0xc000 0000 as PAGE_OFFSET explicitly.  If you
find a place you think depends on a certain PAGE_OFFSET after I cleaned up
the code I can find, please tell us.

	Philipp Rumpf


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On Mon, Nov 15, 1999 at 08:20:44AM +0100, Philipp Rumpf wrote:
> Wanna bet we're going to get that machine to a sash prompt this week ?

Double-or-nothing on that beer I owe you at LinuxTag?  :-)

[I bet it would take at least 6 boots for him to get task switching
 working.  He did it in 2.]

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: Re: [parisc-linux] arch/parisc/kernel/realmode_setup.c Question
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Philipp Rumpf wrote:

> > > How far does it actually boot though?
>
> > Transferring control to kernel. (At entry point 0x00010000)
> > kernel(0x00148C80, 0x00504010, 0x00148C80, 0x00016640)
> > Clear BSS 0x0011B048 --> 0x0013D690
> > Boot loader: PA/Linux, maybe PALO
> > realmode_setup exiting
> >
> > ... At this point it hangs.  Before, it always used to hang at:
> > Transferring control to kernel. (At entry point 0x00010000)
> >
> > I still do not believe it ever successfully finished the rfi in head.S :(
> > I still need to do some more research to verify this, but that is my
> > gut feeling right now.
>
> This sounds right.  It is indeed possible we cannot install a BTLB entry on
> your CPU (and the firmware just reports success as it is free to according to
> the documentation) or the BTLB entry gets removed before we get the chance to
> do our first printk.

Ahh, ok.  I think I'm begining to understand what is happening now (finally).  Is
their
a way to check the BTLB entry and see if it is their right after we we insert the
entry?
or will th real-mode code take care of that?  (I would still like to know what is
happening, I've spent a lot of time tring to figure this out :))

>
> For both problems, the answer is within reach, and is called "a separate direc-
> tory for real-mode code".  Being able to debug unexpected TLB insertion handler
> calls is one of the immediate advantages of having this directory, and sure is
> going to be useful in the future (and would have been useful in the past).

Great!  Anything I can do to help?  I am just learning how this all works, but I
am very
interested in helping.

>
> Wanna bet we're going to get that machine to a sash prompt this week ?

Very, Very nice. Then hopefully I'll be able to contribute more.  I've been
wanting to get
this port to boot on this machine for a long time now :)  This is going to be a
great week!!

- Ryan


>
>         Philipp Rumpf
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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I am in process of changing several you scheme with HP-UX 9.x to Linux
I have a problem with a workstation
My hardware is a HP 9000 715/75 with 64 Mb ram, 4.2 Gb in HD, SO hp-ux
9.05, a jukebox MDI SCSI express Library 5-20DX  (this jukebox is all
internal HP)
 To make a bring updte to Linux the only hardware that I don't have
support it is the jukebox
Does somebody have experience in this hardware type or would it develop
my own driver?
Raul.
--



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I don't work Mondays, but I saw this by chance and thought I should
respond as the culprit :-)

Don't knock yourself out figuring out where a C3000 is dying now
(this can be a TREMENDOUS time sink!).  If you want to get a better PIM
dump of the problem, comment out the 'mtctl ??, %cr14' in head.S.

But logic is all that's required here.  The RFI attempts to
"resume" executaion at 0xC<something> which isn't mapped, and there's
no TLB handler (that I know of, haven't studied it yet though), so this
will generate an immediate fault.

I'm glad folks are finding the C setup code easier to grok, but I
warn that the most innocent-seeming change can cause the compiler to
generate something which will lead to a mysterious death while booting!
This fragility is unacceptable.

The "best" solution to this which I've come up with is to segregate the
realmode code like Phillip suggests, and link it into a small separate
executable, so that vmlinux is logically two executables in one.  This
design is a bit twisted and will mainly impact a couple of Makefiles as well
as head.S, realmode_setup.c, setup.c, and cosmetic changes to traps.c
However once it's done it'll be easy to understand, change, and maintain
the realmode startup code.

I'm planning to start this tomorrow so somebody stop me if it seems stupid.
Very rough notes -- very rough -- about the twisted design can be found at
http://puffin.external.hp.com/~bame/boot.html  I'd like to be shown there's
an easier way...

	-Paul Bame


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From: Andi <der_fisch@fischlustig.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] question about booting / console
Date: Mon, 15 Nov 1999 20:34:55 +0100
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Hi,

I have now sucessfully booted the linux kernel over the network with bootp.

after booting the HP with "boot alt isl" , I changed the command line from
console=ttyS0 to console=tty at the interactive bootloader, but after the kernel
displays

realmode_setup exited

nothing else happens. I used the latest binary kernel snapshot, and I have a
HP 712.

-- 
bye
  Andreas

-------------------------------------------------
e-mail: andi@fischlustig.de

*Checkout our cool game for Linux and Win32*
   *http://www.fischlustig.de/clanbomber*
-------------------------------------------------


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: [parisc-linux] question about booting / console
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On Mon, 15 Nov 1999, Andi wrote:
> I have now sucessfully booted the linux kernel over the network with bootp.
> after booting the HP with "boot alt isl" , I changed the command line from
> console=ttyS0 to console=tty at the interactive bootloader, but after the kernel
> displays
> realmode_setup exited
> nothing else happens. I used the latest binary kernel snapshot, and I have a
> HP 712.

I'm pretty sure that that binary image will actually only work with a
serial console, so that's probably the issue.

I'll make sure there's better images up sometime this week.

- Alex


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From: rob hoppe <hoppe@mindspring.com>
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"Ing. Ral Gmez Escamilla" wrote:

> I am in process of changing several you scheme with HP-UX 9.x to Linux
> I have a problem with a workstation
> My hardware is a HP 9000 715/75 with 64 Mb ram, 4.2 Gb in HD, SO hp-ux
> 9.05, a jukebox MDI SCSI express Library 5-20DX  (this jukebox is all
> internal HP)
>  To make a bring updte to Linux the only hardware that I don't have
> support it is the jukebox
> Does somebody have experience in this hardware type or would it develop
> my own driver?

Raul,

This is the same as an HP magneto-optical drive.  MDI marketed the drive with
their name, to give their softwear credibility.  The drivers should be in the
model or SCSI dev xcripts. I hope this helps.

Rob



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From: Frank Rowand <frank_rowand@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] arch/parisc/kernel/realmode_setup.c Question
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Ryan Bradetich wrote:
> 
> Paul,
> 
> I have started working on getting the kernel to boot on the PA2.0
> architecture again, and I see the you and others have been doing
> lots of work with the initialization code.  (Nice job to everyone btw,
> the code is a lot easier to figure out for a newbie like me! :)
> 
> I was looking at the following section of code and I have a
> discrepancy that I wanted to make you aware of.  I don't know how
> to fix it yet, but I will continue to look.
> 
> I am working on a C200+ which has the PA2.0 processor, so in the
> the following section of code it should give me an error during the
> BTLB initialization, but during the PDC_BTLB_INSERT pret is set
> to 0, so the check for non-PA1.1 architecture's fail.
> 
> I will continue to look through the documentation that has been
> previously pointed out, and the devresource page  pointed out by
> Frank Rowand to see if I can find a solution to the problem.
> 
> Thanks,
> 
> Ryan Bradetich
> 
> [Taken from arch/parisc/kernel/realmode_setup.c]
> 
>  /* This whole VM setup stuff may be removed ultimately.  It seems
>    * to me that once the TLB miss handlers are ready, we just switch
>    * to VM and let them handle TLB population -PB
>    */
> 
>   pret = (*PAGE0->mem_pdc)(
>   PDC_BLOCK_TLB,
>   PDC_BTLB_INSERT,
>   0x00000000,  /* MS bits, virt page number */
>   0xc0000,  /* LS bits, virt page number */
>   0x00000000,  /* Physical page number */
>   4096,   /* # pages to map */
>   0x03000000,  /* access rights, etc... */
>   0);   /* slot number */
> 
>   if (pret != 0)
>  {
>        mprintf("PDC_BTLB_INSERT returned %d\n", pret);
>       if (pret == -1)
>      {
>         mprintf("Looks like there's no BTLB on this box, so it's
> probably\n"
>                        "either PA1.0 or PA2.0.  In any case we're
> screwed for now\n");
>         led_flash();
>      }
> }


Ryan,


This might not solve your problem, but it's worth checking out.  The
procedure calling convention for PA 2.0 PDC is different than for 1.0.
See http://thepuffingroup.com/parisc/documentation.html, pdc.pdf,
p 2-8 defines the return status as a 64-bit, not 32 bit.  You might
also want to look at the neighboring pages of the document for other
changes (eg, arg4 through arg7 are passed in registers).

I don't know if your system has wide or narrow PDC - you have to call
PDC_MODEL(Return Capabilities), and check bit 63 of caps (the field
called OS64).

-Frank


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Ryan Bradetich wrote:

< stuff deleted >

> [Taken from arch/parisc/kernel/realmode_setup.c]
> 
>  /* This whole VM setup stuff may be removed ultimately.  It seems
>    * to me that once the TLB miss handlers are ready, we just switch
>    * to VM and let them handle TLB population -PB
>    */
> 
>   pret = (*PAGE0->mem_pdc)(
>   PDC_BLOCK_TLB,
>   PDC_BTLB_INSERT,


A comment that is totally unrelated to the question Ryan was asking...

I would recommend that we quit using the pointer to PDCE_PROC() that
is in page zero, because the newer machines have a PDC procedure,
PDC_RELOCATE(), that copies PDCE_PROC into real memory, where it
executes much faster.  The page zero pointer to PDCE_PROC() is not
updated by PDC_RELOCATE(), but instead a pointer to the in-memory
PDCE_PROC() is returned.

I recommend using a global variable to hold the pointer to PDCE_PROC(),
which would be the value from page zero initially, then updated to
the value returned by PDC_RELOCATE().

-Frank

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> Maybe I just missed it, but is the source for the bootloader out 
> there anywhere? I'd like to start looking at the code....

It is our hope that all code in this project will be released under the
GPL, and will be made available within the project's CVS repository as
soon as possible. 

It is important in an open-source project that code be released early and
regularly. If you have code that you would like to add to the repository,
please get in touch with me to either have it added or to arrange for
write access.

As for the bootstrap code, we are waiting for Jason Eckardt to release it
and import it into CVS.

Chris

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Cc: Alex deVries <adevries@thepuffingroup.com>
To: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>,
        parisc-linux@thepuffingroup.com
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Philipp Rumpf wrote:
> 
> > >         ; First order of business is to adjust some pointers
> > >         depi            3,1,2,%arg0     ; phys->virt(free mem ptr)
> > >         depi            3,1,2, %sp      ; phys->virt SP
> > >         depi            3,1,2, %dp      ; p2v DP
> >
> > DEPI is "Deposite Immediate".  depi 3,1,2, %arg0
> > drops the value 3 into the upper 2 bits of register arg0.
> >
> > IIRC, it's:  DEPI immediate_value, right_most_bit#, #bits, target_register
> >
> > But...strange code.  It's setting the upper 2 bits of R26, R30, and R27.
> 
> The way physical memory is mapped to kernel virtual memory is (with exceptions):
> 
> physical address P is mapped at virtual address P + PAGE_OFFSET.
> 
> PAGE_OFFSET currently is 0xc000 0000 which was a bad value and will be changed
> to either 0x8000 0000 or 0xe000 0000 in the near future.  This is one of the
> reasons you should use tophys and tovirt instead of doing the depi by hand.

< stuff deleted >


This is just one of several recent messages dealing with the issues caused by
locating the kernel at virtual address 0xc0000000 instead of 0x00000000.  I
still don't understand why the kernel can't be at zero, even though several
people have tried to explain it to me.  Can anyone provide a clear
explanation?

Thanks!

-Frank


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] arch/parisc/kernel/realmode_setup.c Question
Date: Mon, 15 Nov 1999 19:31:46 -0500 (EST)
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On Mon, 15 Nov 1999, Frank Rowand wrote:
> This might not solve your problem, but it's worth checking out.  The
> procedure calling convention for PA 2.0 PDC is different than for 1.0.
> See http://thepuffingroup.com/parisc/documentation.html, pdc.pdf,
> p 2-8 defines the return status as a 64-bit, not 32 bit.  You might

However, we are running this in narrow mode, so we should be able to use
32 bit PDC.

> I don't know if your system has wide or narrow PDC - you have to call
> PDC_MODEL(Return Capabilities), and check bit 63 of caps (the field
> called OS64).

That's worth checking out.

- Alex


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From: Frank Rowand <frank_rowand@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] arch/parisc/kernel/realmode_setup.c Question
Date: Mon, 15 Nov 1999 15:34:55 -0800
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Alex deVries wrote:
> 
> On Mon, 15 Nov 1999, Frank Rowand wrote:
> > This might not solve your problem, but it's worth checking out.  The
> > procedure calling convention for PA 2.0 PDC is different than for 1.0.
> > See http://thepuffingroup.com/parisc/documentation.html, pdc.pdf,
> > p 2-8 defines the return status as a 64-bit, not 32 bit.  You might
> 
> However, we are running this in narrow mode, so we should be able to use
> 32 bit PDC.


You don't get to choose.  The PDC is either 32 bit or 64 bit.  It's not
a question of what mode the OS is running in, but what the PDC was
compiled for.


> > I don't know if your system has wide or narrow PDC - you have to call
> > PDC_MODEL(Return Capabilities), and check bit 63 of caps (the field
> > called OS64).
> 
> That's worth checking out.
> 
> - Alex

-Frank


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Subject: Re: [parisc-linux] arch/parisc/kernel/realmode_setup.c Question
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On Mon, 15 Nov 1999, Frank Rowand wrote:
> You don't get to choose.  The PDC is either 32 bit or 64 bit.  It's not
> a question of what mode the OS is running in, but what the PDC was
> compiled for.

Hm.  I'm pretty sure that a 32 bit version of HPUX has run on that box as
well, so wouldn't that mean that it'd have to be a 32 bit PDC?

- Alex


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] problems with HPMC code in interruption.S
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Because of the incompleteness of the HPMC code in the CVS tree right now,
it looks like the kernel won't build because of os_hpmc problems.

Several people have mailed me about this, so just bear with us until
Philipp has the time to look at it closer, unless someone know an obvious
fix.

- Alex

-- 
Alex deVries <adevries@thepuffingroup.com>
Vice President Engineering
The Puffin Group


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From: Frank Rowand <frank_rowand@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] arch/parisc/kernel/realmode_setup.c Question
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Alex deVries wrote:
> 
> On Mon, 15 Nov 1999, Frank Rowand wrote:
> > You don't get to choose.  The PDC is either 32 bit or 64 bit.  It's not
> > a question of what mode the OS is running in, but what the PDC was
> > compiled for.
> 
> Hm.  I'm pretty sure that a 32 bit version of HPUX has run on that box as
> well, so wouldn't that mean that it'd have to be a 32 bit PDC?
> 
> - Alex

Nope.  The OS has to figure out what type of PDC it is calling, and properly
marshall the arguments for the call.

-Frank


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From: John David Anglin <dave.anglin@nrc.ca>
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Subject: Re: [parisc-linux] depi?
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Frank Rowand wrote:

> This is just one of several recent messages dealing with the issues caused by
> locating the kernel at virtual address 0xc0000000 instead of 0x00000000.  I
> still don't understand why the kernel can't be at zero, even though several
> people have tried to explain it to me.  Can anyone provide a clear
> explanation?

I must admit I don't understand it either.  One consequence is that the kernel no
longer boots using the hpux ipl command without running som_relocate on the kernel.
This messes up the object file so debuggers will have to be specially modified for
this configuration.  It also means that virtual and physical addresses are different
for most of the kernel.  I think it was done to simplify the syscall interface.
However, maybe instead of different real and virtual code, the kernel should have
different syscall and real-virtual code.  I am not an expert but I think this is how
it is done with hpux.  It is linked at ~0 (0x11000 for 10.20).


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From: Philippe Benard <phi@hpfrcu03.france.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] depi?
Date: Tue, 16 Nov 1999 09:26:32 +0100
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Frank Rowand wrote:
> 
> 
> This is just one of several recent messages dealing with the issues caused by
> locating the kernel at virtual address 0xc0000000 instead of 0x00000000.  I
> still don't understand why the kernel can't be at zero, even though several
> people have tried to explain it to me.  Can anyone provide a clear
> explanation?
> 

I asked this question (and provided examples) 4 or 6 monthes ago. I never got
answered, I asked for kernel VAS description for 32 and 64 bits, and I asked
for user process VAS too and yet got no answer.

If I understood correctly, the kernel is located there because it is where it
is on PC.

Sounds like linux is not more portable than any other propriaitary OS since
confined to PC architecture, a port beeing a mimic of PC if the target arch
can do it.

I'm not an HP-PA architecture fan, not orthogonal enough, but the architecture
is what is is and IMHO, due to our cache design (+tlb) that is a virtual
cache, the OS run in virtual mode (most of the time) except sometime, or
except for a given set of data structures, for those exceptional code and
data, the equivalently mapped is the easiest and cleanest solution (again due
to hppa, not in absolute). I think getting away from equiv map, and moving the
kernel text far in the kernel VAS is a source of lot of problems. On the other
hand keeping equiv map mean kernel text in low phys mem addr to be runable on
tiny WS machine like a C3000 with few megs of main memory up to a 8 node
servers with 256 Gb of main memory. (oops kidding we are talking 712 16 Meg
here :-)

Now if linux design can't survive the kernel TEXT relocation to low addr we
definitly are in a dead lock. I mean since I got no answer about kernel VAS
description the few thing I see here doesn't looks like it will run on hppa2.0
in wide mode, then all this effort of what so called 'porting' has to be
redone again for pa2.0 (or abandoned in favor of IA64?). The number of PA2.0
out there goes up and up and being able to run wide on those machine sounds
ledgit.

All thise is pure ignorance from me, 'may be' the current linux design with
kernel at 0xc0000000 make sense in a WIDE kernel but it is unclear to me....

As i said in a previous mail we have two choice here, mimic closely the PC up
to the endianism for instance, to be able to grab as much stuff as possible
from the PC world but ultimatly we will not be able to run PC-linux
executable, then being that close doesn't looks that important. On the other
hand being as close as HPUX (and HP dependend stuff like PDC) could allow to
be able to dual boot vmunix/vmlinux, to run hpux a.out onto vmlinux to
laverage current hp software (if any) etc... being close to hp design is
somewhat having the kernel in low phys addr.

Not sure what I'm saying is completly valid, this is just feeling...

Phi


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
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Subject: Re: [parisc-linux] problems with HPMC code in interruption.S
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I have had the same problem yesterday (unresolved
symbol os_hpmc). The simple solution is to include
hpmc.o in arch/parisc/kernel/Makefile.

Although this works, I must admit that I don't
understand the reason for this problem. I think that
the reference in realmode_setup.c is commented out by
if SETUP_HPMC which is set to 0...

Maybe someone else has an explantion for this.
Ulrich

--- Alex deVries <adevries@thepuffingroup.com> wrote:
> 
> Because of the incompleteness of the HPMC code in
> the CVS tree right now,
> it looks like the kernel won't build because of
> os_hpmc problems.
> 
> Several people have mailed me about this, so just
> bear with us until
> Philipp has the time to look at it closer, unless
> someone know an obvious
> fix.
> 
> - Alex
> 
> -- 
> Alex deVries <adevries@thepuffingroup.com>
> Vice President Engineering
> The Puffin Group
> 
>
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> To unsubscribe: send e-mail to
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> 


=====

__________________________________________________
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> If I understood correctly, the kernel is located there because it is where it
> is on PC.

Thats why someone pulled that number out of a hat. You can pull any other
page aligned number out of a hat and that will be fine too.

> Sounds like linux is not more portable than any other propriaitary OS since
> confined to PC architecture, a port beeing a mimic of PC if the target arch
> can do it.

Check the mm code. We don't care where you put the kernel. The rules we go
by are simple

1.	The kernel must be able to access all of the current tasks user space
	efficiently. This is done via macros/functions/inlines

2.	The kernel must be able to access all physical ram and also
	mappings of MMIO space. The mappings can be 1:1 - for example on the
	ultrasparc we use the override bits for this. I/O space maps are
	accessed via macros/functions. If those functions resolve to no
	actual extra code this is good.

3.	Access to other tasks virtual address space has to be possible. It can
	be slow and suck however as its main use is ptrace().

The mappings we use vary. M68K for example maps the kernel about 3.5Gig up
and uses space registers to access user space. The x86 because of the weak
page table flipping facilities keeps both user and kernel in a single map. That
makes for nice fast x86 code. That is x86 specific.

Alan

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On Mon, 8 Mar 1999, Erik Paulson wrote:
> 	Maybe I just missed it, but is the source for the bootloader out 
> there anywhere? I'd like to start looking at the code....

I'll be releasing the source for the bootloader today.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
HPPA/Linux Porting Team


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Alan Cox wrote:
> 
> Thats why someone pulled that number out of a hat. You can pull any other
> page aligned number out of a hat and that will be fine too.
> 

Hum interesting, too bad the hat didn't got 0x1000 or 0x10000 i.e something
that could be mapped to 0.0x0x1000 or 0.0x10000 this would greatly simplify
the kernel code writing that need to run traslation off, I bet they used a red
hat :-)

> 
> Alan

Anyway I'm sure that after a significant effort and marco's vmlinux will
finally boot with all those funny things, 2 os in 1 file etc... :-) 

I'm still in the dark regarding spaces usage (that is hppa dependent) in
vmlinux, since this define the VAS usage, I'm back to the initial question how
the VAS is used/designed for the kernel and for user processes.

For instance how big can be a process under linux on pa1.1?

If you answer is lnear 4Gb,  I would say whoa they must have a real good
design.
If you say 4x1Gb, I would say hum, they are using spaces
If you say nx1Gb, I would say, looks interesting, they must have compiler
support for long pointer

Etc....

For now I have the feeling (hoping I completly wrong) that the user space is
confined into the low 2Gb and the kernel space is located into the high 2Gb,
well I bet I'm wrong here, I will try to find this mm.c code you spoke about,
I was more hoping de design document even very thin, there is no need for a
big book to describe how a VAS is implemented.


Phi


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> For now I have the feeling (hoping I completly wrong) that the user space is
> confined into the low 2Gb and the kernel space is located into the high 2Gb,
> well I bet I'm wrong here, I will try to find this mm.c code you spoke about,
> I was more hoping de design document even very thin, there is no need for a
> big book to describe how a VAS is implemented.

How it does now now on Linux/hppa32 and how it ends up looking are two 
different questions altogether.


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On Mon, Nov 15, 1999 at 07:26:49PM -0500, John David Anglin wrote:
> I think it was done to simplify the syscall interface.

Nope.  Maybe we'll need a slightly different syscall entry path depending
on where the kernel ends up, but choosing where the kernel lives will have
no material effect on syscalls.  About the only place which is undesirable
for the kernel to live is 0xc000'0000 :-)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: Re: [parisc-linux] depi?
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        Alex deVries <adevries@thepuffingroup.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:6407

On Tue, Nov 16, 1999 at 09:26:32AM +0100, Philippe Benard wrote:
> Sounds like linux is not more portable than any other propriaitary OS since
> confined to PC architecture, a port beeing a mimic of PC if the target arch
> can do it.

I think Linux is actually more ported than *BSD these days...

> As i said in a previous mail we have two choice here, mimic closely the PC up
> to the endianism for instance, to be able to grab as much stuff as possible
> from the PC world but ultimatly we will not be able to run PC-linux
> executable, then being that close doesn't looks that important. On the other
> hand being as close as HPUX (and HP dependend stuff like PDC) could allow to
> be able to dual boot vmunix/vmlinux, to run hpux a.out onto vmlinux to
> laverage current hp software (if any) etc... being close to hp design is
> somewhat having the kernel in low phys addr.

The sash executable we have been using as our only piece of userspace
runs under HPUX using HPUX syscalls.  It will make no difference to
userspace where the kernel is mapped.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


From - Thu Nov 08 21:11:11 2018
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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] arch/parisc/kernel/realmode_setup.c Question
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Frank Rowand wrote:

> Alex deVries wrote:
> >
> > On Mon, 15 Nov 1999, Frank Rowand wrote:
> > > You don't get to choose.  The PDC is either 32 bit or 64 bit.  It's not
> > > a question of what mode the OS is running in, but what the PDC was
> > > compiled for.
> >
> > Hm.  I'm pretty sure that a 32 bit version of HPUX has run on that box as
> > well, so wouldn't that mean that it'd have to be a 32 bit PDC?
> >
> > - Alex
>
> Nope.  The OS has to figure out what type of PDC it is calling, and properly
> marshall the arguments for the call.
>
> -Frank

Time for me to show off my ignorance again. :)  As I understand it, the PDC is
firmware, which all the CPU (in a multiple CPU box) share.  I know that when
I installed 11.X on this C200 that I was given the choice to install it in 32
bit or
64 bit mode.  Does this mean the install disk updates the PDC firmware to boot
into either 32-bit or 64-bit mode?

Also looking at the PSW definition for the W bit on page 2-7 and
page 2-8 of PA-RISC 2.0 Architecture by Gerry Kane:

W: Wide 64-bit address formation enabled.  When 1, full 64-bit-offset
addressing
is enabled.  When 0, addresses are truncated to 32-bit offsets, for
compatibility
with existing PA-RISC 1.0 and 1.1 applications.

>From PIM dumps, I know all the registers are 64 bit, and the PSW is also 64 bit
on
this C200..  So it looks like I should be able to switch between 32-bit and
64-bit by
changing the W bit in the PSW?

Thanks,
Ryan Bradetich

P.S.  I will try to query the PDC_MODEL as you suggested as in a previous email

in this thread and post the result when I get home tonight.



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From: "Christopher L McNabb" <chris@4mcnabb.net>
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Subject: [parisc-linux] Got a machine, Got a Kernel Image, Got a Ramdisk Image, What's next?
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I've been using Intel Linux since version 0.99.  My company recently retired
an HP-9000 model 832, which is now sitting here in my house.  I would love
to help out with the pa-risc port, but don't have the time or inclination to
do actual development.  I can, however, do testing.

The box is an HP-9000 model 832, HP-UX 9.0, 32 Megs of RAM (yeah, I know
that's rather low), and 3.5 gigs of hard drive space split between 6 HP-IB
disk drives (4 internal, 2 external).  A SCSI interface is supposed to
arrive fed-ex today, and I will be adding a CD-ROM and SCSI disks as cash
becomes available.

What I really need to know, though, are two things:
1.  What is the process for getting the Linux kernel to boot?
2.  What can I do to help with the porting of Linux to the PA-RISC
architecture?

Christopher L McNabb
Senior Technical Specialist
SCT Corporation
work:  cmcnabb@sctcorp.com
home: chris@4mcnabb.net



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From: Mike Hibler <mike@fast.cs.utah.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re:  [parisc-linux] Got a machine, Got a Kernel Image, Got a Ramdisk Image, What's next?
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> From: "Christopher L McNabb" <chris@4mcnabb.net>
> To: <parisc-linux@thepuffingroup.com>
> Date: Tue, 16 Nov 1999 09:23:07 -0500
> Subject: [parisc-linux] Got a machine, Got a Kernel Image, Got a Ramdisk Image, What's next?
> 
> I've been using Intel Linux since version 0.99.  My company recently retired
> an HP-9000 model 832, which is now sitting here in my house.  I would love
> to help out with the pa-risc port, but don't have the time or inclination to
> do actual development.  I can, however, do testing.
> 
> The box is an HP-9000 model 832, HP-UX 9.0, 32 Megs of RAM (yeah, I know
> that's rather low), and 3.5 gigs of hard drive space split between 6 HP-IB
> disk drives (4 internal, 2 external).  A SCSI interface is supposed to
> arrive fed-ex today, and I will be adding a CD-ROM and SCSI disks as cash
> becomes available.
> 
> What I really need to know, though, are two things:
> 1.  What is the process for getting the Linux kernel to boot?
> 2.  What can I do to help with the porting of Linux to the PA-RISC
> architecture?
> 

The current linux work is focusing on 1.1 and 2.0 architecture machines with
fairly traditional memory-mapped IO architectures.  The 832 is a PA 1.0
machine with a completely different "channel" based IO bus architecture
(NIO).

In a nutshell, it would be a long uphill battle to port anything to it
and for very little gain.  Scrap it!


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] depi?
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        parisc-linux@thepuffingroup.com, adevries@thepuffingroup.com
To: phi@hpfrcu03.france.hp.com (Philippe Benard)
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> For instance how big can be a process under linux on pa1.1?

Unless you change gcc, the address space is 4GB for pa 1.x.  This is the
short (32 bit) pointer mode.  Space register sr0 is used for loads and stores.
When sr0 is used, the pa hardware uses bits 0 and 1 of the memory offset 
to select one of the space registers sr4 to sr7.  The selected register
is then used with the offset to generate the full virtual address for the
operation.  Thus, only 1GB of the 4GB addressable using a given space
register is actually used in this mode.

The standard usage for sr4 to sr7 in a user process is:

sr4:	text
sr5:	data
sr6:	shared data (shared libs & mmap)
sr7:	shared data (upper 256 MB is reserved for system use).

This model was selected because it is large enough for most applications
and efficient.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] depi?
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> This is just one of several recent messages dealing with the issues caused by
> locating the kernel at virtual address 0xc0000000 instead of 0x00000000.  I
> still don't understand why the kernel can't be at zero, even though several
> people have tried to explain it to me.  Can anyone provide a clear
> explanation?

Advantages of mapping the kernel at 0xc000 0000 (or 0x8000 0000/0xe000 0000)

 - consistent with what the other ports do / what hardware does for the other
   ports (MIPS)
 - clear difference between user pointers and kernel pointers (this matters
   for debugging, not for a running system)
 - clear difference between physical addresses and kernel pointers.  Think
   about vmalloc for one reason this is a good thing.  Also I dislike the
   idea of staring at HPMCs for hours just to find out what really happened
   is someone forgot to set the D bit and we didn't notice until we happened
   to hit a vmalloc area.
 - allows us not to use space registers at all (this might be a nice option
   to have, though it will give us a performance hit)
 - allows us to catch NULL pointers and use large pages to map the physical
   memory [1]
 - is already implemented

Disadvantages

 - conflicts with a rather obscure restriction of PA1.1 cache aliases.  As
   Frank pointed out to me, it is only guaranteed you access the same data
   using a physical address and a virtual address mapped to the physical if
   the physical address is equal to the virtual address (or you are flushing
   the cache lines in question).  I do not believe this to be a real problem
   with any existing hardware and if it is, the performance hit of the
   additional cache flushes may be seen as proper punishment for brain-dead
   hardware.
 - It is not what existing OSes on PA-RISC do.  Whether this really is a dis-
   advantage I'm not sure (it might serve HP engineers as a reminder that this
   is not HP/UX and keep them from doing things the HP/UX way even where it is
   inferior).
 - It adds some depi instructions, some of them in important code paths.
 - it adds some human depi instructions during debugging (Ie you see an oops
   for virtual address 0xc200 XXXX and it takes you some time to figure out
   this really is because you only have 32 MB and something disagreed (this
   is a real world example I saw several times while debugging interruption
   handlers that got called recursively))
 - it causes some additional complexity during booting (though Paul Bame has
   send a simple way to work-around those to the list some time ago).

basically this situation is very similar to your typical twice-a-year endian-
ness debate (surprisingly so.  compare "clear difference between kernel/user
pointers" "clear difference between integers of different sizes", "depi
instructions" "byte-swapping", "human depi" "reading data dumped as bytes
the wrong way around").

Unless it turns out that there are CPUs around which rely on the obscure
condition mentioned above (if there is any HP guy around who can confirm/deny
this it would be of great help), or other unexpected advantages of mapping
the physical memory starting at 0x0000 0000, I don't see this as being a good
idea.
 
If you have additional points to make in favour of / against mapping the memory
at 0x0000 0000, please reply as soon as possible.


	Philipp Rumpf

[1] PA2.0 supports arbitrary power-of-four page sizes between 4 KB and, depen-
ding on the CPU, up to 1 GB.  Of course, those pages have to be aligned.  So
to map 1 GB of physical memory, but leaving the first page unmapped (as you
would do to catch NULL pointers), you would need:

3   4 KB-pages
3  16 KB-pages
3  64 KB-pages
3 256 KB-pages
3   1 MB-pages
...
3 256 MB-pages.

I.e. 27 pages compared to one 1 GB page for the 0xc000 0000 case.  It's not
as terrible as it sounds but it is added complexity.


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Xref: news.gmane.org gmane.linux.ports.parisc:6413

> Advantages of mapping the kernel at 0xc000 0000 (or 0x8000 0000/0xe000 0000)
> 
>  - consistent with what the other ports do / what hardware does for the other
>    ports (MIPS)

Not consistent with what some other ports do however. That one is a non
valid argument.

>  - clear difference between user pointers and kernel pointers (this matters
>    for debugging, not for a running system)

You can stick your elf binaries at 0x80000000 for debugging

>  - clear difference between physical addresses and kernel pointers.  Think
>    about vmalloc for one reason this is a good thing.  Also I dislike the
>    idea of staring at HPMCs for hours just to find out what really happened
>    is someone forgot to set the D bit and we didn't notice until we happened
>    to hit a vmalloc area.

Phys = Virt can help you. Ultrasparc makes good use of tlb bypass bits for
this.

>  - allows us to catch NULL pointers and use large pages to map the physical
>    memory [1]

Only relevant for debug. Indeed on x86 with 4Mb maps enabled we dont do 
null catches in the same way

>  - is already implemented

True

>  - conflicts with a rather obscure restriction of PA1.1 cache aliases.  As
>    Frank pointed out to me, it is only guaranteed you access the same data
>    using a physical address and a virtual address mapped to the physical if
>    the physical address is equal to the virtual address (or you are flushing
>    the cache lines in question).  I do not believe this to be a real problem
>    with any existing hardware and if it is, the performance hit of the
>    additional cache flushes may be seen as proper punishment for brain-dead
>    hardware.

The goal is to make it work well. X86 is brain dead, thats why we do the 
3gig/1gig game with it. 

Alan

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I've packaged Jason Eckhardt's HP bootloader, renamed it to 'HILO',
versioned it, and started on proper licensing.  This is teh first source
release, and it's clear that the source needs work.  I'll try to spend
some time on that next week.  We'll also put it into CVS.

In the mean time, here are the releases:

ftp://sod.res.cmu.edu/pub/parisc/hilo/hilo-0.01.gz (binary, precompiled)
ftp://sod.res.cmu.edu/pub/parisc/hilo/hilo-0.02.tar.gz (source)

The source does cross compile (with cross compilers I've not yet
released), I haven't tried native compiling yet.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
HPPA/Linux Porting Team


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>>  - consistent with what the other ports do / what hardware does for the other
>>    ports (MIPS)
> Not consistent with what some other ports do however. That one is a non
> valid argument.

Consistent with what the widely-used ports do in 2.2 (as far as I can see).

> >  - is already implemented
> True

This actually belongs here (i.e. most of the code is stolen from other architec-
tures while the mapping at 0x0000 0000 one would have to be written AFAIK).

> >  - clear difference between user pointers and kernel pointers (this matters
> >    for debugging, not for a running system)
> You can stick your elf binaries at 0x80000000 for debugging

Sure I could.  It is going to be work though while we get it for free when
mapped at 0x8000 0000.  Furthermore this is likely to cause some meta-
debugging.

> >  - clear difference between physical addresses and kernel pointers.  Think
> >    about vmalloc for one reason this is a good thing.  Also I dislike the
> >    idea of staring at HPMCs for hours just to find out what really happened
> >    is someone forgot to set the D bit and we didn't notice until we happened
> >    to hit a vmalloc area.
> 
> Phys = Virt can help you.

It sure can help from a performance pov.

> Ultrasparc makes good use of tlb bypass bits for this.

We do have load/store word bypassing the TLB instructions, if that's what you
mean.  We also can fix one of SR1-SR3 in kernel mode to be the identical map
if some phys->virt instructions shows up heavily in profiles.

> >  - allows us to catch NULL pointers and use large pages to map the physical
> >    memory [1]
> 
> Only relevant for debug.
> Indeed on x86 with 4Mb maps enabled we dont do 
> null catches in the same way

The day the parisc port reaches the usage counts we can stop caring about
getting Oops/Panic messages (especially if they were unexpected and happened
on a system that seemed stable a long time before) I might agree to the "only".

> >  - conflicts with a rather obscure restriction of PA1.1 cache aliases.  As
> >    Frank pointed out to me, it is only guaranteed you access the same data
> >    using a physical address and a virtual address mapped to the physical if
> >    the physical address is equal to the virtual address (or you are flushing
> >    the cache lines in question).  I do not believe this to be a real problem
> >    with any existing hardware and if it is, the performance hit of the
> >    additional cache flushes may be seen as proper punishment for brain-dead
> >    hardware.
> 
> The goal is to make it work well.
> X86 is brain dead, thats why we do the 3gig/1gig game with it. 

The one point I see is how difficult it's going to be to get both mappings
to the point we have 3.75 GB physical mem / 3.75 GB virtual mem (assuming we
want to do it directly and don't want to do the x86 highmem stuff).

Extending a mapping at 0x8000 0000 to do this is non-trivial, and I would
consider an independent mapping using one of SR[1-3] as the easiest way to do
it.

A mapping at 0x0000 0000 would allow us to do this without any problems, so
this is definitely a disadvantage I missed.

Note that 3.75 GB userspace isn't a problem with either.  My A class looks
pretty packed with 768 MB RAM so I doubt you could fit more than 1.75 GB in
many pa1.1 boxes.

	Philipp Rumpf


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Xref: news.gmane.org gmane.linux.ports.parisc:6415

> Consistent with what the widely-used ports do in 2.2 (as far as I can see).

You mean x86

> It sure can help from a performance pov.
> 
> > Ultrasparc makes good use of tlb bypass bits for this.
> 
> We do have load/store word bypassing the TLB instructions, if that's what you
> mean.  We also can fix one of SR1-SR3 in kernel mode to be the identical map
> if some phys->virt instructions shows up heavily in profiles.

On the ultrasparc it pays off in part by avoiding TLB miss/reloads

> The day the parisc port reaches the usage counts we can stop caring about
> getting Oops/Panic messages (especially if they were unexpected and happened
> on a system that seemed stable a long time before) I might agree to the "only".

And until then you map in 20 odd pages. BFD

> Note that 3.75 GB userspace isn't a problem with either.  My A class looks
> pretty packed with 768 MB RAM so I doubt you could fit more than 1.75 GB in
> many pa1.1 boxes.

3.75Gig _virtual_ 

3.75Gig _virtual_ 

3.75Gig _virtual_ 


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Subject: [parisc-linux] Trivial Makefile Bug
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Xref: news.gmane.org gmane.linux.ports.parisc:6416

This has been around for awhile.

ld -R 0xc0010000 -N -e stext arch/parisc/real/head.o arch/parisc/kernel/init_task.o init/main.o init/version.o \
        arch/parisc/boot/ramdisk.o arch/parisc/kernel/kernel.o arch/parisc/real/real.o arch/parisc/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o \
	fs/filesystems.a \
	net/network.a \
	drivers/block/block.a drivers/gsc/gsc.a drivers/char/char.a  drivers/net/net.a drivers/pci/pci.a \
	/ehic/a/pa/linux/arch/parisc/lib/lib.a /ehic/a/pa/linux/lib/lib.a /ehic/a/pa/linux/arch/parisc/lib/lib.a \
	-o vmlinux
If this fails, you're not using GNU nm!
Make sure you have it in your path before HPUX nm.
nm --version > /dev/null 2>&1
nm -td vmlinux |awk '/init_task_union/ { n = int(); t = int(n/8192); t *= 8192; if (t >= n) printf t-n ; else printf n-(t-8192)}' FS=\| > init_task.alignment
awk: cmd. line:1: fatal: int() cannot have 0 arguments
make[1]: *** [vmlinux-real] Error 2
make[1]: Leaving directory `/ehic/a/pa/linux'
make: *** [vmlinux] Error 2

I believe that the argument of int in the awk script needs to be changed
to "$$1".

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] Got a machine, Got a Kernel Image, Got a Ramdisk Image, What's next?
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Re:
> The box is an HP-9000 model 832, HP-UX 9.0, 32 Megs of RAM (yeah, I know
> that's rather low), and 3.5 gigs of hard drive space split between 6 HP-IB
> disk drives (4 internal, 2 external).  A SCSI interface is supposed to
> arrive fed-ex today, and I will be adding a CD-ROM and SCSI disks as cash
> becomes available.

I can't remember if the original 8x2 machines could boot from SCSI.
Their immediate predecessors, the 8x5 machines, couldn't (but the
ability was added later via a firmware upgrade).

That aside, 8x2 machines are a slightly older version of PA-RISC
(1.0? 1.1?).  The 9000/7xx and most newer 9000/8xx machines are
running newer versions of PA-RISC (1.2 or later).  The most
important difference is in floating point instructions. 
The PA-RISC kernel *could* be easily compiled for 1.0 architecture...
I doubt that it does much floating point work in the kernel!
Further, it could be compiled with 1.2 scheduling...that still
works on 1.0 machines.

The I/O architecture is HP-PB, like the 8x7 machines, so that
may be okay.


If it turns out that the current port won't work for you, you
have a few choices:

   1) wait for it to be done, and modify it for 8x2.

   2) use your 832 with HP-UX.  You can go to 
      http://www.software.hp.com/y2kupgrades/
      and get HP-UX 10.20 for free.

   3) trade it for a machine supported by the current porting
      project.

If you opt for (3), you may want to know about the Classic Computer
mailing list ... a worldwide group of computer collectors.
To post a message to it, send to:
   classiccmp@u.washington.edu

The 832 is a 30 MHz machine.

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html          www.allegro.com/sieler


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Today's boot experience on a 735
Date: Tue, 16 Nov 1999 14:58:07 -0500 (EST)
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This is a transcript of the boot messages on a 735 using the default
CVS config:

kernel(0x0000001), 0x04DFF870, 0x04DFF900, 0x00016A70)
Clear BSS 0x00118470-->0x0012FA80
Boot loader: HP-UX ISL
Warning realmode_setup.c *guessing* where free mem starts!
realmode_setup exiting.

This is better than yesterday when there was no output.  The BSS
region looks ok.  HP-UX ISL is correct.  The address of _end in the
vmlinux object looks reasonable:

_end                |0xc012fa80|extern|data   |$DLT$

Why does realmode_setup have to guess where free mem starts?  Oh, I
think the name of realmode_setup has changed.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Paul Bame <bame@debian.fc.hp.com>
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Subject: Re: [parisc-linux] Today's boot experience on a 735
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= This is a transcript of the boot messages on a 735 using the default
= CVS config:
= 
= kernel(0x0000001), 0x04DFF870, 0x04DFF900, 0x00016A70)
= Clear BSS 0x00118470-->0x0012FA80
= Boot loader: HP-UX ISL
= Warning realmode_setup.c *guessing* where free mem starts!
= realmode_setup exiting.
= 
= This is better than yesterday when there was no output.  The BSS
= region looks ok.  HP-UX ISL is correct.  The address of _end in the
= vmlinux object looks reasonable:
= 
= _end                |0xc012fa80|extern|data   |$DLT$
= 
= Why does realmode_setup have to guess where free mem starts?

The _end symbol is not a reliable indicator of where
the kernel's memory ends.  And the hpux
bootloader doesn't provide the SOM header from whence this could
theoretically be calculated.  I haven't tried out the _end trick
posted last week, but it looks like it'll work (don't call the symbol
_end if you try it).  As long as your kernel links, the guess is
probably OK for now.

	-P


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Subject: Re: [parisc-linux] Today's boot experience on a 735
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> The _end symbol is not a reliable indicator of where
> the kernel's memory ends.  And the hpux
> bootloader doesn't provide the SOM header from whence this could
> theoretically be calculated.  I haven't tried out the _end trick
> posted last week, but it looks like it'll work (don't call the symbol
> _end if you try it).  As long as your kernel links, the guess is
> probably OK for now.

Ok, I see the problem now.  The section $DLT$ contains a bunch of
undefined common symbols as well as _end.  For example,

boot_cpu_data       |       416|undef |common |$CODE$

The _end defined by the linker is the end of the bss section but not
the end of last section of the kernel.

Why is boot_cpu_data in $CODE$ rather than $DATA$?  There may be
some incorrect .section/.subsection directives somewhere (probably
in the include files).

--
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Frank Rowand <frank_rowand@hp.com>
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Subject: Re: [parisc-linux] arch/parisc/kernel/realmode_setup.c Question
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Cc: frowand@cup.hp.com, Alex deVries <adevries@thepuffingroup.com>,
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To: Ryan Bradetich <rbradetich@uswest.net>
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Ryan Bradetich wrote:
> 
> Frank Rowand wrote:
> 
> > Alex deVries wrote:
> > >
> > > On Mon, 15 Nov 1999, Frank Rowand wrote:
> > > > You don't get to choose.  The PDC is either 32 bit or 64 bit.  It's not
> > > > a question of what mode the OS is running in, but what the PDC was
> > > > compiled for.
> > >
> > > Hm.  I'm pretty sure that a 32 bit version of HPUX has run on that box as
> > > well, so wouldn't that mean that it'd have to be a 32 bit PDC?
> > >
> > > - Alex
> >
> > Nope.  The OS has to figure out what type of PDC it is calling, and properly
> > marshall the arguments for the call.
> >
> > -Frank
> 
> Time for me to show off my ignorance again. :)  As I understand it, the PDC is
> firmware, which all the CPU (in a multiple CPU box) share.  I know that when
> I installed 11.X on this C200 that I was given the choice to install it in 32
> bit or
> 64 bit mode.  Does this mean the install disk updates the PDC firmware to boot
> into either 32-bit or 64-bit mode?


The PDC is either 32-bit or 64-bit.  The OS has to deal with whatever version
of the firmware is on the box.

HP-UX is smart enough to switch into wide or narrow mode, as needed, before
calling PDC.  It also passes the arguments differently for 64 bit PDC than
for 32 bit PDC.

Page zero is also different for PA2.0 systems.  HP-UX has to deal with those
differences even when it's a 32 bit OS.


> Also looking at the PSW definition for the W bit on page 2-7 and
> page 2-8 of PA-RISC 2.0 Architecture by Gerry Kane:
> 
> W: Wide 64-bit address formation enabled.  When 1, full 64-bit-offset
> addressing
> is enabled.  When 0, addresses are truncated to 32-bit offsets, for
> compatibility
> with existing PA-RISC 1.0 and 1.1 applications.
> 
> >From PIM dumps, I know all the registers are 64 bit, and the PSW is also 64 bit
> on
> this C200..  So it looks like I should be able to switch between 32-bit and
> 64-bit by
> changing the W bit in the PSW?
> 
> Thanks,
> Ryan Bradetich
> 
> P.S.  I will try to query the PDC_MODEL as you suggested as in a previous email
> 
> in this thread and post the result when I get home tonight.


-Frank


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Philipp Rumpf wrote:
> 
> > This is just one of several recent messages dealing with the issues caused by
> > locating the kernel at virtual address 0xc0000000 instead of 0x00000000.  I
> > still don't understand why the kernel can't be at zero, even though several
> > people have tried to explain it to me.  Can anyone provide a clear
> > explanation?
> 
> Advantages of mapping the kernel at 0xc000 0000 (or 0x8000 0000/0xe000 0000)
> 

< stuff deleted >

> 
> Disadvantages
> 

   - C code that needs to run in real mode seems to be rather fragile, given
     Paul's recent experience with head.c.  (I think it was Paul.)

   - A single instance of code can't (easily) be coded to be able to run both
     in real mode and in virtual mode.

   - It's real easy to mis-code real mode assembly (eg. use the PA() macro when
     it shouldn't be used or don't use it when it should be used).

   - Issues with coherent I/O.

< stuff deleted >

-Frank


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Subject: Re: [parisc-linux] Today's boot experience on a 735
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> > The _end symbol is not a reliable indicator of where
> > the kernel's memory ends.  And the hpux
> > bootloader doesn't provide the SOM header from whence this could
> > theoretically be calculated.  I haven't tried out the _end trick
> > posted last week, but it looks like it'll work (don't call the symbol
> > _end if you try it).  As long as your kernel links, the guess is
> > probably OK for now.
> 
> Ok, I see the problem now.  The section $DLT$ contains a bunch of
> undefined common symbols as well as _end.  For example,
> 
> boot_cpu_data       |       416|undef |common |$CODE$
> 
> The _end defined by the linker is the end of the bss section but not
> the end of last section of the kernel.

Ok, this is a programing problem.  For objects that don't need external
linkage, declare them static.  For those that do, initialize them!  This
will eliminate those pesky common variables.  For example,

--- setup.c.orig	Fri Nov 12 18:23:50 1999
+++ setup.c	Tue Nov 16 17:46:36 1999
@@ -57,14 +57,14 @@
 
 
 #define COMMAND_LINE_SIZE 1024
-char 	saved_command_line[COMMAND_LINE_SIZE];
+char 	saved_command_line[COMMAND_LINE_SIZE] = {};
 
 #define pdc_wrapper(args...) ({				\
 	real_routine = (void *)PAGE0->mem_pdc;		\
 	real_call(##args);				\
 })
 
-struct cpuinfo_parisc boot_cpu_data;
+struct cpuinfo_parisc boot_cpu_data = {};
 
 extern __initfunc(unsigned long hp700fb_init(unsigned long mem_start));
 extern	void dino_init(void);
@@ -73,7 +73,7 @@
 #endif
 extern void do_inventory(void);
 
-PDC_CALL pdc;
+PDC_CALL pdc = {};
 
 
 void __xchg_called_with_bad_pointer(void)

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I've rebuilt cross compiling rpms for parisc-linux, and am uploading them
to ftp://sod.res.cmu.edu/pub/parisc/tools .

This fixes some problems with program names and locations. This will help
in actually getting hilo to cross compile.

The files uploaded are:
binutils-x-hppa-2.9.1-4.i386.rpm    egcs-x-hppa-linux-1.1.1-3.i386.rpm
binutils-x-hppa-2.9.1-4.src.rpm     egcs-x-hppa-linux-1.1.1-3.src.rpm


- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
HPPA/Linux Porting Team


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] depi?
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Philipp Rumpf wrote:
> Note that 3.75 GB userspace isn't a problem with either.  My A class looks
> pretty packed with 768 MB RAM so I doubt you could fit more than 1.75 GB in
> many pa1.1 boxes.

a180.pdf says A-class supports 2GB. And that's the "smallest" box HP
ships today and it won't be on the pricelist much longer. 712/100 only
supports 192MB. I don't know about 715's and older B/C-class systems.

I'm pretty sure all new workstations will support more than 4GB
(and run PA2.0). If we can do something now to port linux to those
boxes easier later, then I think we should.

grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] Today's boot experience on a 735
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In-Reply-To: <199911162256.RAA03404@hiauly1.hia.nrc.ca> from "John David Anglin" at Nov 16, 99 05:56:32 pm
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Xref: news.gmane.org gmane.linux.ports.parisc:6425

> > > The _end symbol is not a reliable indicator of where
> > > the kernel's memory ends.  And the hpux
> > > bootloader doesn't provide the SOM header from whence this could
> > > theoretically be calculated.  I haven't tried out the _end trick
> > > posted last week, but it looks like it'll work (don't call the symbol
> > > _end if you try it).  As long as your kernel links, the guess is
> > > probably OK for now.
> > 
> > Ok, I see the problem now.  The section $DLT$ contains a bunch of
> > undefined common symbols as well as _end.  For example,
> > 
> > boot_cpu_data       |       416|undef |common |$CODE$
> > 
> > The _end defined by the linker is the end of the bss section but not
> > the end of last section of the kernel.
> 
> Ok, this is a programing problem.  For objects that don't need external
> linkage, declare them static.  For those that do, initialize them!  This
> will eliminate those pesky common variables.  For example,

The problem of uninitialized global data is present throughout the kernel.
Initializing these objects might make the kernel unnecessarily larger.  Thus,
I thought I would try the suggestion of Jeff Law.  However, after a little
experimentaion, I found that there isn't a sort key that will put the
$AFTERDLT$ section after the $DLT$ section.  However, I think the following
solution will do the job.  Try it out.  It might depend on linker version
or who knows what else.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

;    theend.S

;    Copyright (C) 1999 John David Anglin
;
;    This program is free software; you can redistribute it and/or modify
;    it under the terms of the GNU General Public License as published by
;    the Free Software Foundation; either version 2, or (at your option)
;    any later version.

;    This program is distributed in the hope that it will be useful,
;    but WITHOUT ANY WARRANTY; without even the implied warranty of
;    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;    GNU General Public License for more details.

;    You should have received a copy of the GNU General Public License
;    along with this program; if not, write to the Free Software
;    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

;    Wierd hack to force the linker to define _end correctly.

;    The sort key of 255 causes the linker to rename the $DLT$
;    section to $AFTERDLT$ and size it.  As a result, the _end
;    symbol defined by the linker correctly reflects the end of
;    the undefined common section.

	.space $PRIVATE$
	.subspa $AFTERDLT$,QUAD=1,ALIGN=8,ACCESS=31,ZERO,SORT=255
	.globl _start_dlt
_start_dlt:


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From: Jeffrey A Law <law@cygnus.com>
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Subject: Re: [parisc-linux] Today's boot experience on a 735
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  In message <199911170204.VAA11108@hiauly1.hia.nrc.ca>you write:
  > experimentaion, I found that there isn't a sort key that will put the
  > $AFTERDLT$ section after the $DLT$ section.  However, I think the following
  > solution will do the job.  Try it out.  It might depend on linker version
  > or who knows what else.
There's always a way.

Create a .o file which contains a DLT & AFTERDLT section.  Make sure the
DLT section appears first in the object file (I'm assuming they have the
same sort keys).  Referece that .o first on the link line.

jeff


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>   In message <199911170204.VAA11108@hiauly1.hia.nrc.ca>you write:
>   > experimentaion, I found that there isn't a sort key that will put the
>   > $AFTERDLT$ section after the $DLT$ section.  However, I think the following
>   > solution will do the job.  Try it out.  It might depend on linker version
>   > or who knows what else.
> There's always a way.
> 
> Create a .o file which contains a DLT & AFTERDLT section.  Make sure the
> DLT section appears first in the object file (I'm assuming they have the
> same sort keys).  Referece that .o first on the link line.

As I noted, it appears to work as is.  Do you know why the DLT section
disappeared when I used the sort key of 255 for AFTERDLT?  Although
I haven't tried it, it may not be possible to create an object file with
both DLT and AFTERDLT sections.

Dave


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Today's boot experience on a 735
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  In message <199911170248.VAA15412@hiauly1.hia.nrc.ca>you write:
  > > 
  > > Create a .o file which contains a DLT & AFTERDLT section.  Make sure the
  > > DLT section appears first in the object file (I'm assuming they have the
  > > same sort keys).  Referece that .o first on the link line.
  > 
  > As I noted, it appears to work as is.
Yea, but you appear to be depending on highly suspicious behavior.    The
trick of ordering subspaces in the first .o on the link line to provide an
ordering for the subspaces in the final executable relies on documented
behavior of the HP linker.


  > you know why the DLT section
  > disappeared when I used the sort key of 255 for AFTERDLT?  Although
  > I haven't tried it, it may not be possible to create an object file with
  > both DLT and AFTERDLT sections.
Not really.  I do know that we had major problems with pxdb (post-link 
processor
on HPs) mysteriously removing subspaces with sort keys of 255 in the past.

jeff


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
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> I have had the same problem yesterday (unresolved
> symbol os_hpmc). The simple solution is to include
> hpmc.o in arch/parisc/kernel/Makefile.

Not only is it simple, it's the right one, too.

> Although this works, I must admit that I don't
> understand the reason for this problem. I think that
> the reference in realmode_setup.c is commented out by
> if SETUP_HPMC which is set to 0...
> 
> Maybe someone else has an explantion for this.

It's referenced from interruption.S.

	Philipp Rumpf


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Subject: Re: [parisc-linux] use of (*PAGE0->mem_pdc)()
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> >   pret = (*PAGE0->mem_pdc)(
> >   PDC_BLOCK_TLB,
> >   PDC_BTLB_INSERT,

> I would recommend that we quit using the pointer to PDCE_PROC() that
> is in page zero, because the newer machines have a PDC procedure,
> PDC_RELOCATE(), that copies PDCE_PROC into real memory, where it
> executes much faster.  The page zero pointer to PDCE_PROC() is not
> updated by PDC_RELOCATE(), but instead a pointer to the in-memory
> PDCE_PROC() is returned.
> 
> I recommend using a global variable to hold the pointer to PDCE_PROC(),
> which would be the value from page zero initially, then updated to
> the value returned by PDC_RELOCATE().

Not only is it is a potential performance problem to use (PAGE0->mem_pdc),
it's arguably ugly and problematic for SMP as well.  There is an interface
in place to call pdc (even for real-mode code now) and there shouldn't be
a problem using that.

	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] depi?
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> > I think it was done to simplify the syscall interface.

> Nope.  Maybe we'll need a slightly different syscall entry path depending
> on where the kernel ends up, but choosing where the kernel lives will have
> no material effect on syscalls.  About the only place which is undesirable
> for the kernel to live is 0xc000'0000 :-)

Actually, that's not even true because of our space register usage.  IIRC the
syscall page is at SR7 / 0xc000 0000 (SR7 may be written to in PL 0 only) so
there is nothing preventing us from setting the space register to something
different from 0x0000 0000 and managing a TLB entry for it - nothing but lazi-
ness, that is.

	Philipp Rumpf


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From: Philippe Benard <phi@hpfrcu03.france.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] depi?
Date: Wed, 17 Nov 1999 09:14:53 +0100
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Philipp Rumpf wrote:
> 
> > This is just one of several recent messages dealing with the issues caused by
> > locating the kernel at virtual address 0xc0000000 instead of 0x00000000.  I



Hi All,
Sorry for beeing a little out of phase with you this is the magic of the
timezone :-)

On the other I can read all the trail before reply.


First of all I may have started the 'trouble' by saying low virtual addr (that
can be mapped to low physical addr generally know as equiv map) I didn't meant
necessary starting at 0x0, I think I even say start mapping at anything after
page 0, it seems obvious that catch NULL deref in kernel mode is essential.

Regarding factoring kernel text pages, it could be accomplished by either
block tlb or super page depending on arch capability.

There where a reference about 'HP way of thinking the OS' versus rest of the
world, I would like to mention here that based on the french proverb 'who
loves well flame well' I love hp-ux and I'm the first to blame a lot of its
weaknesse. When I writing here I put my 'HP view' on the side, yet I'm
thinking the architecture we want to write an OS on will influence the OS
design. Here we have a 1Gb segmented machine, with virtual cache, and TLB,
this is definitly different from a 68K linear 4Gb with MMU. I think mastering
hppa is tough, and a laverage what the hpux designer did well or even goofed
if any would save time.

There is a reference about recognising a user pointer and a kernel pointer,
that something I don't understand due to lack of knowledge of the underlying
design. 
This sounds like (hope I'm wrong) user pointer and kernel pointer are
recognisable by their hi-bits (i.e quad selector), this would mean that
0xCafeCafe is recognised as kernel addr while 0x000F0FF is recognised as a
user addr, this imply the 0xc....... is not part of the user virtual adresse
space, this imply a user process is not 4 Gb capable (well it never will on
PA1.1 since we indeed need a UAREA, IO space, gateway page) 

This fear about user proces VAS (virtual adresse space) seem confirmed by
another reference to 'avoiding to use the space register at all) using space
register is the way to design multiple VAS, i.e one for user process for
instance, and one completly different for the kernel space, i.e how we use
those quadran in a given mode, I saw a reference about the user space layout
(text/data/shared data) but yet nothing abot the kernel, (kernel text/ data/
buffer cache/ other stuff)

I think the user virtual adress space must be design to allow a somewhat
linear view, allowing big chunck of vm, for instance a 2.5 Gb malloc (or
mmap). HP design is not good at that, while a new OS can learn what was wrong
with HP-UX and try to do better, on the other hand if the 0xcxxxxxxx is simply
removed from the user VAS, I think it is worst than HP-UX (process limited to
3 Gb by lack of last quad)

Now an hacker need. Dunno how it fit with current implementation of vmlinux,
but in case someday someone want to design a kernel tracer, that can be
install/desinstalled on the fly, a common hppa dependent implementation is to
divert the kernel code flow, i.e patch an instruction with a branch somewhere,
this could be assimilated to patching with a break instruction, as any debuger
the original instruct before patch would be saved for differed execution. For
break kind of implementation, this would mean debugger kind of ptrace, i.e get
the trap, restore instruction , single step, re-install the break, blah blah.
this is costly for tracing, another implementation is simply to stick a branch
to a tracer stub, and the tracer will one way or another execute the original
saved instruction, this limit patchable instruction to one that can be defered
(i.e non pc relative and non branch or delay slot kind) let simplify with
ld/st only.
Then you will discover the only possible instruction to use for branching is
the BLE within low virtual addr i.e using no base register 
BLE trace_stub(0,0) 
The tracer got the caller rp in r31 and then can identify the tracepoint and
manage it.
A single instruction patch is the easiest way to do it specillay on MP, no
spinlock needed to patch the trace point.
This is what ktracer is doing on hpux, this is what I'm doing in my own kernel
tracer, removing this possibilty somewhat reduce the supportability of the
target OS. I understand though that linux come with sources, then it is just a
matter to turn some compile flage to get any trace you want, but it happen
that on some site critical, being able to trace on a fly a kernel that was not
compiled for this on purpose is an ass saver (sometime) (well the tracer may
panic :-)

So the current 0xc0000000 may still allow this kind of tracer assuming we can
get kernel pages on the fly in those low virtual addr.

I rekon it is not easy to see its old habit going away, there where
interesting thing with hpux :-) well long live to vmlinux though, I bet my
kids are laughing (they are linux fan then we got animated meals :-)

Phi

--
mailto:phi@hpfrcu81.france.hp.com
WTEC Project. Kernel debugging tools


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>   > you know why the DLT section
>   > disappeared when I used the sort key of 255 for AFTERDLT?  Although
>   > I haven't tried it, it may not be possible to create an object file with
>   > both DLT and AFTERDLT sections.
> Not really.  I do know that we had major problems with pxdb (post-link 
> processor
> on HPs) mysteriously removing subspaces with sort keys of 255 in the past.

I did a little testing with your second suggestion.  What happens
is DLT is empty except for the one symbol that I created in it.  The linker
always goes last and it seems to dump the common symbols into the last
section with sort key 255.  I think DLT was deleted because it was
empty.

Is there a solution that doesn't rely on this obscure linker behaviour?
I think that if gas were modified to allocate common symbols in a special
section, then we wouldn't have this problem.  However, I think this would
require that common symbols would always have to be fixed in size. While
this is normal practice in C, the assembler would not work with fortran
where it is normal practice to have common blocks of varying size.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

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With advice from The Puffin Group, HP has released documentation on basic
bootup sequences, including IMM layout, OS requirements for PDC, PDC
itself for both PARISC 1.1 and 2.0, version numbering and IODC. As well,
we have details of what's in what hardware from 1997 backwards.

This is solid proof that HP is behind this port, and I think this gives
our project an excellent start.  We now have the docs necessary to get a
basic kernel starting, including boot sequences and console interaction.

The easiest way to get to this documentation is to go to the Available
Resources section at http://thepuffingroup.com/parisc/ .

Many thanks to everyone at HP who made this possible.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
HPPA/Linux Porting Team


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>    - C code that needs to run in real mode seems to be rather fragile, given
>      Paul's recent experience with head.c.  (I think it was Paul.)

We do need some tricks to get C code to run in real-mode, and several people
are working on them.

When the kernel is mapped, we need to be extremely careful not to hit a
vmalloced area or something when we call C code that should run in virtual
mode in real mode.

It's letting the code fail obviously, for all cases, or letting easy code work
now and wait for subtle bugs to occur.

Which one do you prefer ?

>    - A single instance of code can't (easily) be coded to be able to run both
>      in real mode and in virtual mode.

That's true when we map the kernel at 0x0000 0000 as well.  Again, it's
an obvious bug or a subtle one.

>  - It's real easy to mis-code real mode assembly (eg. use the PA() macro when
>    it shouldn't be used or don't use it when it should be used).

Is there any situation where you should not use PA() for a symbol in real-mode
assembly ?  I agree branches are a bit difficult because the right way to code
them is

	.+(PA(symbol)-PA(.))

but

	symbol

right now happens to work (this is good luck).


I agree the PA() macro isn't a nice thing to use and if we have a chance to get
rid of it, we should have a serious look.  

>    - Issues with coherent I/O.

I don't see them.  I see issues with the architecture specification, but I do
not believe there is any actual hardware around that depends on this issues.

As far as I understood the implementation of cache-coherent I/O, what basically
happens is:

 - I/O controller wants to access physical adress 0x1234 5678
 - the I/O controller puts a special cycle on the bus it shares with the CPU(s)
   that basically says "hey, if you have address 0x1234 5678 in your cache and
   need to write it back, do it now"
 - all CPUs have a look at the cache lines corresponding to 0x1234 5678, which
   is the same cache lines as the one used for 0x9234 5678 (very very likely).
 - all CPUs have a look at the tags of these cache lines, which happen to be
   physical so 0x1234 5678 and 0x9234 5678 result in the same thing again.
 - the guilty CPU gives back the cache line, or none does if the line doesn't
   happen to be in the cache.

Furthermore, there is no publically documented coherent I/O system from HP yet
so we have just to assume hardware we only heard rumours about will be sane
once we get to see it. 

	Philipp Rumpf


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Subject: Re: [parisc-linux] depi?
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> > Note that 3.75 GB userspace isn't a problem with either.  My A class looks
> > pretty packed with 768 MB RAM so I doubt you could fit more than 1.75 GB in
> > many pa1.1 boxes.
> 
> a180.pdf says A-class supports 2GB. And that's the "smallest" box HP

To support 2 GB (instead of 1.75 GB) we indeed need to do some additional
tricks (such as mapping the I/O range somewhere else, ugh).

Any PA1.0 box around on which we waste more than 256 MB ?

	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] depi?
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> > Thats why someone pulled that number out of a hat. You can pull any other
> > page aligned number out of a hat and that will be fine too.

Fine with the MM subsystem.  If you fix all the code stolen to work with the
new PAGE_OFFSET.  And fix it again when we merge with 2.3.

> Hum interesting, too bad the hat didn't got 0x1000 or 0x10000 i.e something
> that could be mapped to 0.0x0x1000 or 0.0x10000 this would greatly simplify
> the kernel code writing that need to run traslation off, I bet they used a red
> hat :-)

While any other page-aligned value for PAGE_OFFSET is fine with the Linux MM
code, it isn't with parisc hardware.  For that we need 1 MB-aligned addresses
(theoretically) or 512 KB-aligned addresses (according to the rumors about
undocumented hardware I heard).

> Anyway I'm sure that after a significant effort and marco's vmlinux will
> finally boot with all those funny things, 2 os in 1 file etc... :-) 

It boots quite fine now, and it never did that for PAGE_OFFSET == 0x0000 0000
(as it was back in the dark time when we didn't use VM at all).

The problem right now is we cannot run C code while PAGE_OFFSET is 0, and I
would like to do that (if I were good at parisc assembly, we wouldn't need to
do that.  Unfortunately, I'm quite bad, and I happen to prefer reading debug
messages over staring at PIM dumps for hours (which I've done, too)).

> I'm still in the dark regarding spaces usage (that is hppa dependent) in
> vmlinux, since this define the VAS usage, I'm back to the initial question how
> the VAS is used/designed for the kernel and for user processes.

> For instance how big can be a process under linux on pa1.1?

Right now TASK_SIZE, which is #defined to PAGE_OFFSET, which is defined to be
0xc000 0000.

Soon, 0x8000 0000 (without changing anything else).

> If you answer is lnear 4Gb,  I would say whoa they must have a real good
> design.

Eventually, we might have a flat 3 GB address space.  (4 GB is more difficult
because the syscall pages are at 0xc000 0000 / 0xc000 1000 currently).

Flat 4 GB is more difficult because HP/UX's ABI puts a syscall page after 3 GB
but otherwise there shouldn't be a problem (of course the pages at 0xc000 0000
and 0xc000 1000 always will be special).

> If you say 4x1Gb, I would say hum, they are using spaces

No need to do that, is there ?  (It looks okay as long as 1 GB looks huge
and you don't think you'll ever reach it - 80's literature can be so amusing).

On the other hand, 64 bits is really huge and we'll never run out of address
space on 64-bit machines.  This is here so it can be quoted.

> For now I have the feeling (hoping I completly wrong) that the user space is
> confined into the low 2Gb and the kernel space is located into the high 2Gb,
> well I bet I'm wrong here, I will try to find this mm.c code you spoke about,
> I was more hoping de design document even very thin, there is no need for a
> big book to describe how a VAS is implemented.

Right now you're right, we don't implement anything fancy and have to flush the
TLB on context switch (strictly speaking maybe we don't and could survive by
flushing TLB entries after we got a protection id mismatch).

In the near future we'll be using spaces in the obvious way - i.e. a process
has all space registers set to a unique value (unique per view of the memory,
so similar to the traditional process id (on Linux threads have pids too so
it isn't all that easy)).

My current impression is the easiest way to implement the unique value is
using the same value for protection id and the space registers.  Userspace is
expected never to change the values in the space registers and doing so will
result in a segmentation fault.  Is this consistent with what HP/UX binaries
expect ?

In the far future, we might consider doing fancy things using more than one
protection identifier at a time, allowing more than 32768 processes (not
counting all threads per process), directly mapping a file using SR1-SR3 (I
can see some applications that would like the performance improvement of
mmapping a complete disk) and other, even sicker, things.

	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] Today's boot experience on a 735
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To: Jeffrey A Law <law@cygnus.com>
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> Yea, but you appear to be depending on highly suspicious behavior.    The
> trick of ordering subspaces in the first .o on the link line to provide an
> ordering for the subspaces in the final executable relies on documented
> behavior of the HP linker.

After reading the whole discussion, I have to admit I really don't understand
what the problem is.  Maybe the boot loader doesn't tell us where the kernel
ends, but do we really want to know ?  We know that everything after the start
of the BSS section is our memory, and no-one is going to expect any nonzero
value beyond it.

While memsetting the whole memory after the start of the BSS section might be
overkill, it certainly will eliminate some otherwise unreproducable bugs.
Maybe limit it to some barrier that will be sane for the foreseeable future
(say, 16 MB) (and do print a warning / panic if _end is even higher), but it
shouldn't be a problem just doing it the stupid way now and do it right when
we have ELF, no ?

	Philipp Rumpf


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> 
> > Yea, but you appear to be depending on highly suspicious behavior.    The
> > trick of ordering subspaces in the first .o on the link line to provide an
> > ordering for the subspaces in the final executable relies on documented
> > behavior of the HP linker.
> 
> After reading the whole discussion, I have to admit I really don't understand
> what the problem is.  Maybe the boot loader doesn't tell us where the kernel
> ends, but do we really want to know ?  We know that everything after the start
> of the BSS section is our memory, and no-one is going to expect any nonzero
> value beyond it.

The problem is the kernel can't determine how big its common data section
is and therefore where free memory should start.  There are quite a few
big structures and arrays throughout the linux code that are global and
not initiallized.  Without the trick, _end is located at the end of the
bss section.  When "theend" is linked in, _end moves to the end of
unitialized common data and the kernel can easily determine where free
memory starts.

The current hack to determine the start of free memory is to use a symbol
that is near the end of the common data and add a fudge amount to it.
This failed for me recently when I built a configuration without network
support and the symbol was no longer defined.  The size of the common
data varies depending on kernel configuration as well.

Uninitialized common data can be avoided by using static or explicitly
initializing the data object (puts data into $DATA$ instead of $DLT$).
However, if you explicitly initialize, the size of the kernel will grow.
I know some systems still allow installation from floppies.  The kernel
might get too big for this if all common data were explicitly initialized.

Memory from the start of the bss section to the end of the common data
should be zeroed.  I presume other free memory will be initialized when
it is used.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Missing extern's in keyboard.h
Date: Wed, 17 Nov 1999 13:30:51 -0500 (EST)
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The following was noticed in the hunt for undefined common variables.
A number of extern's are missing in keyboard.h.  As a result, keyboard.h
actually defines the variables instead of just prototyping them.  The
initialization of them should be in keyboard.c.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

--- keyboard.h.orig	Sun Nov 14 17:30:33 1999
+++ keyboard.h	Tue Nov 16 18:43:15 1999
@@ -33,13 +33,13 @@
 extern void parisckbd_init_hw(void);
 
 extern void parisckbd_request_region(void);
-int (*parisckbd_request_irq)(void (*handler)(int, void *, struct pt_regs*));
-unsigned char (*parisckbd_read_input)(void);
-unsigned char (*parisckbd_read_status)(void);
-void (*parisckbd_write_output)(unsigned char val);
-void (*parisckbd_write_command)(unsigned char val);
-char *(*parisckbd_test)(void);
-char *(*parisckbd_reset)(void);
+extern int (*parisckbd_request_irq)(void (*handler)(int, void *, struct pt_regs*));
+extern unsigned char (*parisckbd_read_input)(void);
+extern unsigned char (*parisckbd_read_status)(void);
+extern void (*parisckbd_write_output)(unsigned char val);
+extern void (*parisckbd_write_command)(unsigned char val);
+extern char *(*parisckbd_test)(void);
+extern char *(*parisckbd_reset)(void);
 
 #define kbd_setkeycode		pckbd_setkeycode
 #define kbd_getkeycode		pckbd_getkeycode


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Philipp Rumpf wrote:
> 
> >    - C code that needs to run in real mode seems to be rather fragile, given
> >      Paul's recent experience with head.c.  (I think it was Paul.)
> 
> We do need some tricks to get C code to run in real-mode, and several people
> are working on them.
> 
> When the kernel is mapped, we need to be extremely careful not to hit a
> vmalloced area or something when we call C code that should run in virtual
> mode in real mode.
> 
> It's letting the code fail obviously, for all cases, or letting easy code work
> now and wait for subtle bugs to occur.
> 
> Which one do you prefer ?
> 
> >    - A single instance of code can't (easily) be coded to be able to run both
> >      in real mode and in virtual mode.
> 
> That's true when we map the kernel at 0x0000 0000 as well.  Again, it's
> an obvious bug or a subtle one.


You missed my point.  An example: the os_hpmc() that I wrote only works in
real mode.  If I wanted it to be able to run in virtual mode, I would either
have to write a parallel version that uses virtual addresses (instead of
physical) or every time I used an address I would have to choose whether to
use the physical or virtual address, based on whether address translation was
turned on or not.

If the kernel is equivalently mapped, this problem goes away.


> >  - It's real easy to mis-code real mode assembly (eg. use the PA() macro when
> >    it shouldn't be used or don't use it when it should be used).
> 
> Is there any situation where you should not use PA() for a symbol in real-mode
> assembly ?  I agree branches are a bit difficult because the right way to code
> them is
> 
>         .+(PA(symbol)-PA(.))
> 
> but
> 
>         symbol
> 
> right now happens to work (this is good luck).


Look at os_hpmc() and see where it was not appropriate to use the PA() macro.


> I agree the PA() macro isn't a nice thing to use and if we have a chance to get
> rid of it, we should have a serious look.
> 
> >    - Issues with coherent I/O.
> 
> I don't see them.  I see issues with the architecture specification, but I do
> not believe there is any actual hardware around that depends on this issues.
>
> As far as I understood the implementation of cache-coherent I/O, what basically
> happens is:
> 
>  - I/O controller wants to access physical adress 0x1234 5678
>  - the I/O controller puts a special cycle on the bus it shares with the CPU(s)
>    that basically says "hey, if you have address 0x1234 5678 in your cache and
>    need to write it back, do it now"
>  - all CPUs have a look at the cache lines corresponding to 0x1234 5678, which
>    is the same cache lines as the one used for 0x9234 5678 (very very likely).
>  - all CPUs have a look at the tags of these cache lines, which happen to be
>    physical so 0x1234 5678 and 0x9234 5678 result in the same thing again.
>  - the guilty CPU gives back the cache line, or none does if the line doesn't
>    happen to be in the cache.
> 
> Furthermore, there is no publically documented coherent I/O system from HP yet
> so we have just to assume hardware we only heard rumours about will be sane
> once we get to see it.


So listen to the people who have read that documentation (like Grant).


>         Philipp Rumpf
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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In-Reply-To: <19991117072141.H750@mathe.stud.uni-erlangen.de> from "Philipp Rumpf" at Nov 17, 1999 07:21:41 AM
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Re:

> To support 2 GB (instead of 1.75 GB) we indeed need to do some additional
> tricks (such as mapping the I/O range somewhere else, ugh).
> 
> Any PA1.0 box around on which we waste more than 256 MB ?

I'm not sure exactly what you mean, but IIRC, the 8x2 can have up
to about 720 MB of memory on it (been there, seen it running),
although that's more than the HP marketing blessed maximum.
 
The 832/822 is PA-RISC 1.0.  (sched.models)   (HP-PB machine)
 
-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html          www.allegro.com/sieler


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On Wed, Nov 17, 1999 at 07:21:41AM +0100, Philipp Rumpf wrote:
> Any PA1.0 box around on which we waste more than 256 MB ?

Eek, of course I meant PA1.1.  Note the 7:21:41AM part as well.

	Philipp Rumpf


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> > Any PA1.0 box around on which we waste more than 256 MB ?
> 
> Eek, of course I meant PA1.1.  Note the 7:21:41AM part as well.

Yes, many.  8x7 can go up to 1.5 GB (768 MB according to HP marketing).
Others, too.
 

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html          www.allegro.com/sieler

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Subject: [hppa-linux] Bootstrap take 3
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Following is take #3 of the bootstrap test.
The second test ran fine on my C160 but failed on a number of other  machines.
Its very difficult for me to determine the failures without having the
machine here to mess with. I will try a few different ideas and put them
up for people to try over the next couple days as time permits.

I still am unable to upload to the ftp site. So once again, I have included
the bootstrap in the mail.

If the test runs successfully you should see this at the end:
---------------------------------------------------------------------------

Reading parameters...done.
Size = 28672 bytes, entry = 0x00001000, location = 0xnnnnnnnn.
Loading kernel...done.
Transferring control to kernel.

*********************************************************

VMLINUX 0.0: Dummy kernel image loaded and executing!


It is now safe to reboot. (you should see this at least once, and upto 6 times).

---------------------------------------------------------------------------
The very last thing you should see is a "spinning cursor" which means
you reached the last statement in the bootstrap (i.e. passed). (this is
an infinite loop, the cursor will spin forever until you reboot).

It seems that some characters get dropped on some systems, usually when
booting over the network. I don't know why this is the case, and HPs
documentation doesn't say anything about needing delays during console I/O.





begin 664 bootstrap_3.bin
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`
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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] depi?
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Xref: news.gmane.org gmane.linux.ports.parisc:6444

> > > Any PA1.0 box around on which we waste more than 256 MB ?
> > Eek, of course I meant PA1.1.  Note the 7:21:41AM part as well.
> Yes, many.  8x7 can go up to 1.5 GB (768 MB according to HP marketing).
> Others, too.

Note the "waste".  1.75 GB we can map without any problem.


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Xref: news.gmane.org gmane.linux.ports.parisc:6445

> You missed my point.  An example: the os_hpmc() that I wrote only works in
> real mode.  If I wanted it to be able to run in virtual mode,

Why would you want to run any code which needs to be run in real-mode in the
first place in virtual mode ?  Any examples ?


> I would either
> have to write a parallel version that uses virtual addresses (instead of
> physical) or every time I used an address I would have to choose whether to
> use the physical or virtual address, based on whether address translation was
> turned on or not.

Or you would have to disable address translation before calling the code.  Dis-
abling address translation is what happens for every interrupt(ion), including
TLB insert handlers which are very common.  So it shouldn't be a big deal.

> If the kernel is equivalently mapped, this problem goes away.

If it exists in the first place.


> Look at os_hpmc() and see where it was not appropriate to use the PA() macro.

Just what I said.  You use

	symbol

where the "right" thing to do would be

	.+(PA(symbol)-PA(.))

But we're working on that (so you can just use "symbol" for code references, as
it is real-mode code.  You also will be able to use "symbol" if it's a
real-mode data reference.  Sounds right to me).

>>Furthermore, there is no publically documented coherent I/O system from HP yet
>> so we have just to assume hardware we only heard rumours about will be sane
>> once we get to see it.

> So listen to the people who have read that documentation (like Grant).

What I really want to know is  which algorithm do recent CPUs use to get the
cache bank index / cache tag.

The answer is either "Just the obvious", "just the obvious but we XOR some
bits from the space registers in" or "we're doing tricks to special-case those
accesses were the virtual address matches the physical, for no apparent reason".

I don't believe the latter to be the case, but we just can't be sure until we
get documentation (and would violate the architecture specification if the
proof below turns out to be valid).



I would agree it would be best to change the design to work according to the
architecture specification if the restriction the "cache coherency issues"
(which might exist) looked sane at all.  It doesn't.

[note: what follows is what I think is a proof we can do what I want to do.
It is very likely to contain formal/grammatical mistakes but I think it should
be valid nontheless].


  The Rules

1. A physical and a virtual address refer to the same physical address (and
caches work) if they are equal.  (and obviously the virtual address translates
to the physical).  If a virtual address and its mapping satisfy this rule, the
address is said to be _equivalently mapped_.

2. Two virtual addresses refer to the same physical address (and caches work)
if they are equal modulo 2^20.  (and obviously translate to the same physical
address).  If two virtual addresses satisfy this rule, they are said to be
_equivalent aliases_.

p0 contains physical address, is used as physical address
p1 contains phys. addr, is used as virtual address, equivalently mapped
p2 is an equivalent alias of p1, but not necessarily equivalently mapped.

p0 and p1 satisfy Rule 1.
p1 and p2 satisfy Rule 2.

Therefore, p1 and p2 refer to the same physical address, and p0 and p1 refer
to the same physical address.

p0 and p2 refer to the same physical address if p1 is ever used to access
memory.

There is no requirement for the access using p1 to occur before the access
using p0 or the access using p2.

There is no requirement for the access using p1 to occur within a certain time
or number of instructions after the access using p0 or the access using p2.

Since delaying the access using p1 indefinitly is possible and there is no
feasible way for the cache system to verify the access won't occur (except
in certain cases which never occur during normal operation), there is no reason
for the access using p1 ever to happen.

Therefore, a physical address and a virtual address are guaranteed to refer to
the same physical address if the virtual address is an equivalent alias of the
equivalent mapping of the physical address.




Any mistakes to point out ?  Misunderstandments in the specification ?  Other-
wise could the specification please get fixed ?


	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Today's boot experience on a 735
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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> The problem is the kernel can't determine how big its common data section
> is and therefore where free memory should start.

Okay, I didn't take into account we actually want to know where our free
memory starts  -  sometimes being stupid doesn't help.

> There are quite a few big structures and arrays throughout the linux code
> that are global and not initiallized.
> Uninitialized common data can be avoided by using static or explicitly
> initializing the data object (puts data into $DATA$ instead of $DLT$).

> Without the trick, _end is located at the end of the
> bss section.  When "theend" is linked in, _end moves to the end of
> unitialized common data and the kernel can easily determine where free
> memory starts.

Okay, this is a SOM-specific bug around a missing feature of the SOM linker
(i.e. not supporting linker scripts) (tell me if I'm wrong).

> The current hack to determine the start of free memory is to use a symbol
> that is near the end of the common data and add a fudge amount to it.

> This failed for me recently when I built a configuration without network
> support and the symbol was no longer defined.  The size of the common
> data varies depending on kernel configuration as well.

Yeah, this code needs to go / change.

> However, if you explicitly initialize, the size of the kernel will grow.
> I know some systems still allow installation from floppies.  The kernel

PARISC systems ?

> Memory from the start of the bss section to the end of the common data
> should be zeroed.  I presume other free memory will be initialized when
> it is used.

yup, Linux doesn't need to have all available memory zero'd out on boot.

	Philipp Rumpf


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] depi?
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To: Philipp.H.Rumpf@mathe.stud.uni-erlangen.de (Philipp Rumpf)
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I have been trying to figure outout why the kernel that I built with the
default configuration dies after going virtual.

It seems to me that some aspects of PA compilers and linkers haven't
been taken into account.  One particular thing to note is that long
branches are done via stubs which use interspace branches (i.e., they
use the space registers).  There is a builtin assumption that the four
quadrant model is being used.  Since we are linking to 0xc0000000, sr7
is being used for long branches.

Here is an example called from sys_pipe:

0xc0015538 <pdc_console_init+88>:       ldil -3ff72800,r1
0xc001553c <pdc_console_init+92>:       be,n 3c0(sr7,r1)

I can't find where sr7 is initialized.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] depi?
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> Here is an example called from sys_pipe:
> 
> 0xc0015538 <pdc_console_init+88>:       ldil -3ff72800,r1
> 0xc001553c <pdc_console_init+92>:       be,n 3c0(sr7,r1)
> 
> I can't find where sr7 is initialized.

It isn't, we don't need to.   This branches to
-0x3ff72800 + 0x3c0 = 0xc008dbc0.

	Philipp Rumpf


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From: Frank Rowand <frank_rowand@hp.com>
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Subject: Re: [parisc-linux] depi?
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Philipp Rumpf wrote:

< stuff deleted - I don't need to argue, my face is already turning blue... >

> What I really want to know is  which algorithm do recent CPUs use to get the
> cache bank index / cache tag.

< stuff deleted >

> [note: what follows is what I think is a proof we can do what I want to do.
> It is very likely to contain formal/grammatical mistakes but I think it should
> be valid nontheless].
> 
>   The Rules

<stuff deleted >

> Any mistakes to point out ?  Misunderstandments in the specification ?  Other-
> wise could the specification please get fixed ?
> 
>         Philipp Rumpf


I didn't bother reading the proof, so no arguments about it.  I already thought
through what is probably a similar proof for myself.

The problem is that no matter how obvious it is to us software folks that it
would be braindead, illogical, or nearly impossible for the hardware to
behave in strange ways, the hardware folks are incredibly devious at making
the hardware more effective, within the constraints of the architecture
(and, on occasion, outside the constraints).  This results in behaviour that
may seem unreasonable to a software person.


*****  I attempt to code within the ARCHITECTURE, not to implement what
specific hardware implementations let me get away with.  That way I don't
get burnt by the creative hardware engineers, who might be pushing the
envelope.  *****


-Frank


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> The problem is that no matter how obvious it is to us software folks that it
> would be braindead, illogical, or nearly impossible for the hardware to
> behave in strange ways, the hardware folks are incredibly devious at making
> the hardware more effective, within the constraints of the architecture
> (and, on occasion, outside the constraints).  This results in behaviour that
> may seem unreasonable to a software person.

If the hardware gives us cache problems, it is not in compliance with the
architecture specification (OR my proof is wrong, but you "didn't bother to
read it").

If it doesn't, we're just fine. (OR ...).

> *****  I attempt to code within the ARCHITECTURE, not to implement what
> specific hardware implementations let me get away with.  That way I don't
> get burnt by the creative hardware engineers, who might be pushing the
> envelope.  *****

Shrug.  Both versions are in compliance with the architecture. (OR ...)

Note especially that on PA2.0 in wide mode, there is an explicit exception as
well, so mapping the memory at 0x0000 0000 0000 0000, 0x4000 0000 0000 0000,
0x8000 0000 0000 0000 or 0xc000 0000 0000 0000 is all okay.

	Philipp Rumpf


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From: Stan Sieler <sieler@allegro.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] depi?
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Re:

> > 0xc0015538 <pdc_console_init+88>:       ldil -3ff72800,r1
> > 0xc001553c <pdc_console_init+92>:       be,n 3c0(sr7,r1)
> > 
> > I can't find where sr7 is initialized.
> 
> It isn't, we don't need to.   This branches to
> -0x3ff72800 + 0x3c0 = 0xc008dbc0.

I must be missing something...the above should branch
to: sr7.0xc008dbc0, not to "0xc008dbc0".  I.e., you specified SR7
in the BE instruction, so it gets used.  

Of course, if you'd said:  
   BE,N 3c0(0,r1) 
the result would effectively be the same (because it's a short
address, we grab the upper two bits of $c008dbc0, add 4, and therefore
use SR7 as the space register).

So, SR7 indeed needs to be set correctly...but since I haven't
looked at the surrounding code...

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html          www.allegro.com/sieler


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> I must be missing something...the above should branch
> to: sr7.0xc008dbc0, not to "0xc008dbc0".  I.e., you specified SR7
> in the BE instruction, so it gets used.  

No, we didn't.  We set the space register selection field to '00' which
according to the documentation means you select SR7 but in reality means
you don't want to have anything to do with space registers.  Just think
of it as flat address 0xc008dbc0 and of SR[123]:0xc008dbc0 as "real"
segmented addresses.

> So, SR7 indeed needs to be set correctly...but since I haven't
> looked at the surrounding code...

SR0, SR4, SR5, SR6, SR7 shouldn't ever need to be set to different values
for flat 4 gig code.  SR1, SR2, SR3 you use only for "real" segmented code.

(This is based on what the C compiler does, and what changed with PA2.0)
	
	Philipp Rumpf


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Philipp Rumpf wrote:
> 
> > I must be missing something...the above should branch
> > to: sr7.0xc008dbc0, not to "0xc008dbc0".  I.e., you specified SR7
> > in the BE instruction, so it gets used.
> 
> No, we didn't.  We set the space register selection field to '00' which
> according to the documentation means you select SR7 but in reality means
> you don't want to have anything to do with space registers.  Just think
> of it as flat address 0xc008dbc0 and of SR[123]:0xc008dbc0 as "real"
> segmented addresses.


When address translation is enabled, a space register is *always* used.
You cannot turn that off.  Specifying '00' in the space register
select bits really does mean that you use space register 7 to calculate
the 64 bit virtual address.  (Humor me, and pretend that all
implementations of space registers are 32 bits, even though they aren't.)

If you "don't want to have anything to do with space registers", you
can put the same value (such as zero) in all of the space registers.


> > So, SR7 indeed needs to be set correctly...but since I haven't
> > looked at the surrounding code...
> 
> SR0, SR4, SR5, SR6, SR7 shouldn't ever need to be set to different values
> for flat 4 gig code.  SR1, SR2, SR3 you use only for "real" segmented code.
> 
> (This is based on what the C compiler does, and what changed with PA2.0)
> 
>         Philipp Rumpf

I don't understand.  Are you saying that there is a single 4gByte virtual
address range that is shared by the kernel and all user processes?  Or
do you plan to provide a separate 4gByte virtual address range to each
process/task/thread/whatever?

-Frank

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On Mar 09, Jason Eckhardt wrote:
> I still am unable to upload to the ftp site. So once again, I have included
> the bootstrap in the mail.

Jason--

I would be happy to create you an account and let you manage the
bootloader section of the ftp site, unless Alex has any objections. 
Just send me an ssh key and I'll activate an account by the same name
as your cvs account.  At some point it might be prudent to add it to
the cvs server and then pull periodic snapshots, but whatever, that's
your call.

-Phil

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Subject: Re: [parisc-linux] depi?
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Frank Rowand wrote:
> 

> When address translation is enabled, a space register is *always* used.

Ok, ok, slight overstatement.  Of course the various load absolute
instructions don't use space registers...

-Frank


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Subject: Re: [parisc-linux] depi?
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> 
> Philipp Rumpf wrote:
> > 
> > > I must be missing something...the above should branch
> > > to: sr7.0xc008dbc0, not to "0xc008dbc0".  I.e., you specified SR7
> > > in the BE instruction, so it gets used.

I agree.  The contents of SR7 is loaded into the instruction space id
queue.

The example was a stub.  Stubs are generated by the compiler/linker
when a relative branch is too far.  The BE instruction was used (as
opposed to a BL instruction) to allow the branch to go anywhere within
the assumed 4GB address space model.  The linker used SR7 because
it determined that the branch was to an address in the 4th quadrant
of the 4GB address space.

> > 
> > No, we didn't.  We set the space register selection field to '00' which
> > according to the documentation means you select SR7 but in reality means
> > you don't want to have anything to do with space registers.  Just think
> > of it as flat address 0xc008dbc0 and of SR[123]:0xc008dbc0 as "real"
> > segmented addresses.

This is only for data accesses.  Instructions use the full space register
specifications.  When an interspace branch is taken with sr7, for example,
the contents of sr7 becomes the new contents of the space id queue. 

> When address translation is enabled, a space register is *always* used.
> You cannot turn that off.  Specifying '00' in the space register
> select bits really does mean that you use space register 7 to calculate
> the 64 bit virtual address.  (Humor me, and pretend that all
> implementations of space registers are 32 bits, even though they aren't.)
> 
> If you "don't want to have anything to do with space registers", you
> can put the same value (such as zero) in all of the space registers.
> 
> 
> > > So, SR7 indeed needs to be set correctly...but since I haven't
> > > looked at the surrounding code...
> > 
> > SR0, SR4, SR5, SR6, SR7 shouldn't ever need to be set to different values
> > for flat 4 gig code.  SR1, SR2, SR3 you use only for "real" segmented code.
> > 
> > (This is based on what the C compiler does, and what changed with PA2.0)
> > 
> >         Philipp Rumpf
> 
> I don't understand.  Are you saying that there is a single 4gByte virtual
> address range that is shared by the kernel and all user processes?  Or
> do you plan to provide a separate 4gByte virtual address range to each
> process/task/thread/whatever?

I think what is being suggested is to run with the space registers all
zero and swap the TLB contents on context switches in order to changing
the mapping from virtual to physical.  However, I doubt this is efficient.

On the otherhand, the space registers could be swapped on context switches,
and the kernel and each process could have their own 4GB virtual space.  The
mapping of program virtual addresses to hardware virtual addresses would
still be flat. I can't see any reason to segment the address space since
the hardware virtual address space is large enough to accomodate more
processes than would ever be needed.  I assume here that we aren't concerned
with running on level 0 machines without space registers.  In this scenario,
cache usage would reflect the scheduling priorities of the OS.

I stress that, because the PA architecture has space registers, a program's
virtual address space (0 - 4GB) doesn't have to be the same as its hardware
virtual address space.

My original point was that I couldn't see where the space registers were
initialized prior to the transition to virtual operation.  They may in
fact be initialized to zero by the boot loader prior to transfer to the
kernel (cf., head.S).

Does the above suggestion regarding the usage of space registers make any
sense?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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John David Anglin wrote:
> 
> I think what is being suggested is to run with the space registers all
> zero and swap the TLB contents on context switches in order to changing
> the mapping from virtual to physical.  However, I doubt this is efficient.

This is what I undesrtand now too, at first I though it was flat 4Gb shared
between the OS and the processes (ala 2Gb each), then space flip enter in
action with flat 4Gb per threads (pardon proceses for now), and then a flat
4Gb for the kernel itself.

I don't really see the implementation of a previous mail of someone saying the
user VAS quad usage would be TEXT/DATA/SHARED1/SHARE2 if all the SR's are the
same, I still have some ProtID problem I don't see how efficiently sharing is
implemented (TEXT/SHARED1/SHARED2). I bet this is adressed, I just don't have
the design document.

And more than that, context switching is a pain on all machine, register
save/restore, priv promot, etc... cost a lot, I don't see a global TLB purge
on context switch as a booster (again assuming it is what happen)

And my last point with no proof.
1) If now processes and the OS have a flat 4Gb in front of them, then the OS
can be located anywhere (beside some things like 0 for NULL deref traping) i.e
any quad

2) If a concept like equivalently map exist, it may or may not provide a gain.
This is a degree of liberty.

3) Choosing to locate the kernel text in second, third or fourth quad prevent
using of equiv mem. remove 1 degre of liberty.

4) For now it is claimed that equiv mem address non-existing problem (sic),
then is useless, then not considered, then any quad could be choosen and the
one choosen is the one that remove the equiv map potential, actually since
there are 4 quad and the quad came from a red hat, we got 3 chances over 4 to
get one that will remove us 1 degree of liberty.

My feeling is since equiv map doesn't seems to be needed in this
implementation, and since it was written that any quad could have been
choosen, I would have choosen the one that still allow me to have quiv mem
should a boo boo happen and made it necessary, in other words I like to keep
my degree of liberty even if I'm not using it (for now).

------------------------------------------

Designing a ASL (addr space layout) implementation onto an architecture
(specially this one) is something tough, and not uniq. For instance designing
the ASL for 64bit wide for HP-UX (with the constraint of being able to run
narrow process un-recompiled) was pretty interesting and did provide several
options. 

I admit I didn't browse the web that much but will accept any pointer, for now
I desesperatly looking at the puffin/doc page and see nothing but pure HP doc,
no linux design options. What I'd like is a document that gives the design
orientation, all this discovery about space usage is pure guessing from mail
to mail, boucing from 1 flat 4Gb for all to 4Gb per process/kernel.

Some may say, linux is not doc, it is hack n run, but on the long run I'm
affraid that hack n run will type more text (try and fail code) than writing
the design options. For instance the ASL document for HP-UX wide is 22 pages
total, with TOC and figures, and pseudo-code algorithm.
Remember Djikstra (well the old timer may, the bambinos may take Kurt Cobain
as an example :-) "You should pay the programmers a very good salary, don't
hesitate to bump their salary, BUT make them pay any puch in their punched
card" The idea behind, think before code after, Kurt tried it the other way,
he choose to shoot first and think after oops :-)

Actually I did find a book on linux internals (some years ago) that did speak
a bit about VAS, but the arch indep part speak a lot about design option based
on x86 and MMU) which definilty doesn't apply here then not so indep...


Phi


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To: phi@hpfrcu03.france.hp.com (Philippe Benard)
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In-Reply-To: <3833B29E.5793D0E6@hpfrcu03.france.hp.com> from "Philippe Benard" at Nov 18, 99 09:02:38 am
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> 
> John David Anglin wrote:
> > 
> > I think what is being suggested is to run with the space registers all
> > zero and swap the TLB contents on context switches in order to changing
> > the mapping from virtual to physical.  However, I doubt this is efficient.
> 
> This is what I undesrtand now too, at first I though it was flat 4Gb shared
> between the OS and the processes (ala 2Gb each), then space flip enter in
> action with flat 4Gb per threads (pardon proceses for now), and then a flat
> 4Gb for the kernel itself.

The architecture that I proposed was suggested by figure 3-1 of the
Precision Architecture and Instruction Set Manual (1989).  On a level 1
machine there 2**16-1 virtual 4GB spaces.  Thus, each process can
have its own virtual space.  The physical page directory contains
the mapping for the kernel and all processes.  The algorithm for
updating the TLB(s) from the page directory is very important for
efficiency and also for security.

I assume threads will run in a processes virtual space for efficiency.

> I don't really see the implementation of a previous mail of someone saying the
> user VAS quad usage would be TEXT/DATA/SHARED1/SHARE2 if all the SR's are the
> same, I still have some ProtID problem I don't see how efficiently sharing is
> implemented (TEXT/SHARED1/SHARED2). I bet this is adressed, I just don't have
> the design document.

This was me again.  The TEXT/DATA/SHARED1/SHARE2 architecture is described
in the 32-bit PA-RISC Runtime Architecture Document.  It is how hpux 10.20
does it.  Take a look at Table 1, "Space Register Usage".  However, it doesn't
really tell you anything about the OS implementation details.  I do know
that hpux uses different spaces for text and data.  As a result, branches
that cross quadrants must be interspace branches.  The space of the caller
must be saved and restored on return.  If the same space id is used in SR4-SR7
for any given process, then I don't think it would be necessary to save
and restore the instruction space register across calls except for system
calls where the virtual space changes.

The one advantage to reserving the fourth quadrant for the OS is that in
a system call the OS has direct access to the first three quadrants
of the processes address space as well as its own space.  What I am
suggesting here is that the TLB page table mapping for the fourth quadrant
would be more or less the same except for access rights for the kernel
and user processes.  Of course, hardware registers wouldn't be mapped
in process space.  There could be a gateway page that messes with the
mapping to allow the kernel to run at a different location.  But then
I think the system would have a more difficult job in accessing user
virtual space.  Possibly, some special provisions would have to be made
for PDC calls in virtual mode.

I know that there are restrictions using mmap with hpux 10.X.  More or
less, the problem is that you can't put a shared data area where you want
and this causes problems with many apps that assume a more general
implementation.  The system chooses where shared data goes.  This needs
to be looked at in more detail.

SR0 to SR4 can be changed by a non-privileged process.  Thus, access
identities have to be setup properly to prevent a process from flipping
through the virtual address space and doing bad stuff.  The OS must also
be prepared for a process that messes with SR4.  A nasty process might
be able change the space id in SR4 to that of another process or the
kernel, and do a system call that writes to this region.

For PA_RISC 2.0, the architecture is changed for 64-bit operation.  I quote

	"The OS will use a different address space layout for 64-bit processes,
	so we will not be able to specify that main program text is at the
	low end of Quadrant 0, nor will we be able to use absolute addressing
	at all.  This will affect millicode calls, long calls, plabel
	materialization, and non-PIC literal references.

	Compilers must avoid any explicit reference to space registers, so
	there is no need to specify any association between particular
	segments and quadrants of the address space."

Further, the 64-bit architecture defines a single PIC compilation model.
I have to say that the 64-bit document as of Version 3.3 (1997) is vague.

Probably, we should ignore the 64 bit issues and use an architecture
that is good for 32 bit level 1 machines and above.

> ------------------------------------------

> Some may say, linux is not doc, it is hack n run, but on the long run I'm
> affraid that hack n run will type more text (try and fail code) than writing
> the design options. For instance the ASL document for HP-UX wide is 22 pages
> total, with TOC and figures, and pseudo-code algorithm.
> Remember Djikstra (well the old timer may, the bambinos may take Kurt Cobain
> as an example :-) "You should pay the programmers a very good salary, don't
> hesitate to bump their salary, BUT make them pay any puch in their punched
> card" The idea behind, think before code after, Kurt tried it the other way,
> he choose to shoot first and think after oops :-)

Agree totally.

In summary, I think that each process slot should be assigned a unique
space id.  At least initially, the same id would be used for SR4-SR7 in
each process.  Link the OS at 0xc0000000 and go with a 3GB process/1GB OS
virtual address model.  All the physical memory in the machine can 
therefore be used, up to the ~ 4GB limit in the PA 1.X architecture.
I think this model is compatible with the PA 1.1 architecture and hopefully
also the x86 architecture.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Frank Rowand <frank_rowand@hp.com>
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Subject: Re: [parisc-linux] depi?
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John David Anglin wrote:
> 
> >
> > John David Anglin wrote:
> > >
> > > I think what is being suggested is to run with the space registers all
> > > zero and swap the TLB contents on context switches in order to changing
> > > the mapping from virtual to physical.  However, I doubt this is efficient.
> >
> > This is what I undesrtand now too, at first I though it was flat 4Gb shared
> > between the OS and the processes (ala 2Gb each), then space flip enter in
> > action with flat 4Gb per threads (pardon proceses for now), and then a flat
> > 4Gb for the kernel itself.
> 
> The architecture that I proposed was suggested by figure 3-1 of the
> Precision Architecture and Instruction Set Manual (1989).  On a level 1
> machine there 2**16-1 virtual 4GB spaces.  Thus, each process can
> have its own virtual space.  The physical page directory contains
> the mapping for the kernel and all processes.  The algorithm for
> updating the TLB(s) from the page directory is very important for
> efficiency and also for security.
> 
> I assume threads will run in a processes virtual space for efficiency.
> 
> > I don't really see the implementation of a previous mail of someone saying the
> > user VAS quad usage would be TEXT/DATA/SHARED1/SHARE2 if all the SR's are the
> > same, I still have some ProtID problem I don't see how efficiently sharing is
> > implemented (TEXT/SHARED1/SHARED2). I bet this is adressed, I just don't have
> > the design document.
> 
> This was me again.  The TEXT/DATA/SHARED1/SHARE2 architecture is described
> in the 32-bit PA-RISC Runtime Architecture Document.  It is how hpux 10.20
> does it.  Take a look at Table 1, "Space Register Usage".  However, it doesn't
> really tell you anything about the OS implementation details.  I do know
> that hpux uses different spaces for text and data.  As a result, branches
> that cross quadrants must be interspace branches.  The space of the caller
> must be saved and restored on return.  If the same space id is used in SR4-SR7
> for any given process, then I don't think it would be necessary to save
> and restore the instruction space register across calls except for system
> calls where the virtual space changes.
> 
> The one advantage to reserving the fourth quadrant for the OS is that in
> a system call the OS has direct access to the first three quadrants
> of the processes address space as well as its own space.  What I am
> suggesting here is that the TLB page table mapping for the fourth quadrant
> would be more or less the same except for access rights for the kernel
> and user processes.  Of course, hardware registers wouldn't be mapped
> in process space.  There could be a gateway page that messes with the
> mapping to allow the kernel to run at a different location.  But then
> I think the system would have a more difficult job in accessing user
> virtual space.  Possibly, some special provisions would have to be made
> for PDC calls in virtual mode.
> 
> I know that there are restrictions using mmap with hpux 10.X.  More or
> less, the problem is that you can't put a shared data area where you want
> and this causes problems with many apps that assume a more general
> implementation.  The system chooses where shared data goes.  This needs
> to be looked at in more detail.
> 
> SR0 to SR4 can be changed by a non-privileged process.  Thus, access
> identities have to be setup properly to prevent a process from flipping
> through the virtual address space and doing bad stuff.  The OS must also
> be prepared for a process that messes with SR4.  A nasty process might
> be able change the space id in SR4 to that of another process or the
> kernel, and do a system call that writes to this region.
> 
> For PA_RISC 2.0, the architecture is changed for 64-bit operation.  I quote


Just to avoid confusion, the following quote is from the 64-Bit Runtime
Architecture, and applies to  *** 'user-mode applications running in "Wide"
mode' ***.


>         "The OS will use a different address space layout for 64-bit processes,
>         so we will not be able to specify that main program text is at the
>         low end of Quadrant 0, nor will we be able to use absolute addressing
>         at all.  This will affect millicode calls, long calls, plabel
>         materialization, and non-PIC literal references.
> 
>         Compilers must avoid any explicit reference to space registers, so
>         there is no need to specify any association between particular
>         segments and quadrants of the address space."
> 
> Further, the 64-bit architecture defines a single PIC compilation model.
> I have to say that the 64-bit document as of Version 3.3 (1997) is vague.
> 
> Probably, we should ignore the 64 bit issues and use an architecture
> that is good for 32 bit level 1 machines and above.
> 
> > ------------------------------------------
> 
> > Some may say, linux is not doc, it is hack n run, but on the long run I'm
> > affraid that hack n run will type more text (try and fail code) than writing
> > the design options. For instance the ASL document for HP-UX wide is 22 pages
> > total, with TOC and figures, and pseudo-code algorithm.
> > Remember Djikstra (well the old timer may, the bambinos may take Kurt Cobain
> > as an example :-) "You should pay the programmers a very good salary, don't
> > hesitate to bump their salary, BUT make them pay any puch in their punched
> > card" The idea behind, think before code after, Kurt tried it the other way,
> > he choose to shoot first and think after oops :-)
> 
> Agree totally.
> 
> In summary, I think that each process slot should be assigned a unique
> space id.  At least initially, the same id would be used for SR4-SR7 in
> each process.  Link the OS at 0xc0000000 and go with a 3GB process/1GB OS
> virtual address model.  All the physical memory in the machine can
> therefore be used, up to the ~ 4GB limit in the PA 1.X architecture.
> I think this model is compatible with the PA 1.1 architecture and hopefully
> also the x86 architecture.
> 
> Dave
> --
> J. David Anglin                                  dave.anglin@nrc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] Progress
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With today's cvs patches, things are going better.  The kernel booted
to the following point:

...
VFS: Mounted root (ext2 filesystem)
Warning: unable to open an initial console.
Attempting to execute '/sbin/init'
It seems to be a valid SOM executable.

I am using the PDC_CONSOLE.  I think there was a changed needed to allow
opening the PDC_CONSOLE that was discussed previously.  Does anybody
remember?  Maybe with this change I can get to sash.

I also need to slow down the console messages.

The space registers are all zero.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] Progress
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> VFS: Mounted root (ext2 filesystem)
> Warning: unable to open an initial console.
> Attempting to execute '/sbin/init'
> It seems to be a valid SOM executable.
> 
> I am using the PDC_CONSOLE.  I think there was a changed needed to allow
> opening the PDC_CONSOLE that was discussed previously.  Does anybody
> remember?  Maybe with this change I can get to sash.

edit arch/parisc/boot/boot_code/ipl_c.c and replace the "ttyS0" in the command
line with "tty".  Alternatively, boot in interactive mode and edit the command
line (again replacing "ttyS0" with "tty").

That should get you to an (most likely unusable) shell prompt.

> I also need to slow down the console messages.

edit arch/parisc/kernel/pdc_cons.c and put a __delay(N); in pdc_putc.  N is
approximately the number of CPU cycles you want to wait.  I suggest placing
it directly after the "case 'n':" as that gives you a per-line delay instead
of a per-character one.

> The space registers are all zero.

They always are, currently (this needs to, and will, change).

	Philipp Rumpf


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Subject: Re: [parisc-linux] depi?
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> > This is what I undesrtand now too, at first I though it was flat 4Gb shared
> > between the OS and the processes (ala 2Gb each), then space flip enter in
> > action with flat 4Gb per threads (pardon proceses for now), and then a flat
> > 4Gb for the kernel itself.

> The architecture that I proposed was suggested by figure 3-1 of the
> Precision Architecture and Instruction Set Manual (1989).  On a level 1
> machine there 2**16-1 virtual 4GB spaces.  Thus, each process can
> have its own virtual space.  The physical page directory contains
> the mapping for the kernel and all processes.  The algorithm for
> updating the TLB(s) from the page directory is very important for
> efficiency and also for security.

I agree with the description.

> I assume threads will run in a processes virtual space for efficiency.

Is there any reason we shouldn't do it ?  It's just not a per-pid unique id we
put into the space registers, it's a per-process(Unix sense) one.

> > I don't really see the implementation of a previous mail of someone saying the
> > user VAS quad usage would be TEXT/DATA/SHARED1/SHARE2 if all the SR's are the
> > same, I still have some ProtID problem I don't see how efficiently sharing is
> > implemented (TEXT/SHARED1/SHARED2). I bet this is adressed, I just don't have
> > the design document.
> 
> This was me again.  The TEXT/DATA/SHARED1/SHARE2 architecture is described
> in the 32-bit PA-RISC Runtime Architecture Document.  It is how hpux 10.20
> does it.  Take a look at Table 1, "Space Register Usage".  However, it doesn't
> really tell you anything about the OS implementation details.  I do know
> that hpux uses different spaces for text and data.  As a result, branches
> that cross quadrants must be interspace branches.  The space of the caller
> must be saved and restored on return.  If the same space id is used in SR4-SR7
> for any given process, then I don't think it would be necessary to save
> and restore the instruction space register across calls except for system
> calls where the virtual space changes.

Using the same value in SR0, SR4-SR7 sounds like it will be the least
surprising.  Throwing away the whole fourth quadrant when you only need two
pages out of it doesn't sound like an especially good idea (though it might be
more efficient in very limited circumstances).

> The one advantage to reserving the fourth quadrant for the OS is that in
> a system call the OS has direct access to the first three quadrants
> of the processes address space as well as its own space.

It still has (though I think this might be what you meant by "direct").  Load
SR3 with the content of SR[04567].  Explicitly use SR3 for all references to
user data.

> SR0 to SR4 can be changed by a non-privileged process.  Thus, access
> identities have to be setup properly to prevent a process from flipping
> through the virtual address space and doing bad stuff.

This is an important point as soon as we have to consider system security in
more detail.

> The OS must also be prepared for a process that messes with SR4.  A nasty
> process might be able change the space id in SR4 to that of another process
> or the kernel, and do a system call that writes to this region.

> For PA_RISC 2.0, the architecture is changed for 64-bit operation.  I quote
> 
> 	"The OS will use a different address space layout for 64-bit processes,
> 	so we will not be able to specify that main program text is at the
> 	low end of Quadrant 0, nor will we be able to use absolute addressing
> 	at all.  This will affect millicode calls, long calls, plabel
> 	materialization, and non-PIC literal references.
> 
> 	Compilers must avoid any explicit reference to space registers, so
> 	there is no need to specify any association between particular
> 	segments and quadrants of the address space."
> 
> Further, the 64-bit architecture defines a single PIC compilation model.
> I have to say that the 64-bit document as of Version 3.3 (1997) is vague.

The PA1.1 is vague/redundant as well (or at least I'll assume it is until someone
points out my mistake).

> Probably, we should ignore the 64 bit issues and use an architecture
> that is good for 32 bit level 1 machines and above.

Basically, the question with PA2.0 is "how do we access user memory out of kernel
space".  OTOH, as PA2.0 virtual address offsets are 62 bits only, this shouldn't
be a problem (are they really 62 bits btw ?).

> > ------------------------------------------
> > Some may say, linux is not doc, it is hack n run, but on the long run I'm
> > affraid that hack n run will type more text (try and fail code) than writing
> > the design options. For instance the ASL document for HP-UX wide is 22 pages
> > total, with TOC and figures, and pseudo-code algorithm.
> > Remember Djikstra (well the old timer may, the bambinos may take Kurt Cobain
> > as an example :-) "You should pay the programmers a very good salary, don't
> > hesitate to bump their salary, BUT make them pay any puch in their punched
> > card" The idea behind, think before code after, Kurt tried it the other way,
> > he choose to shoot first and think after oops :-)

> Agree totally.

Who is Kurt and why do we have to go around on parisc-linux and insult him ?

> In summary, I think that each process slot should be assigned a unique
> space id.

I agree, and have said so before (Date: Wed, 17 Nov 1999 14:00:19 +0100).

> At least initially, the same id would be used for SR4-SR7 in
> each process.

I don't see the need to ever change this _for PA1.1_.

For PA2.0 (wide), our largest flat address space is 62 bits and using the two
bits to select space registers is a good idea.

> Link the OS at 0xc0000000 and go with a 3GB process/1GB OS
> virtual address model.

We don't want that.

We might want to link the OS at 0x8000 0000 and go with a 4GB process / 2GB OS
model.

We might want to link the OS at 0x0000 0000 and go with a 4GB process / 4GB OS
model.

> All the physical memory in the machine can therefore be used, up to the ~ 4GB
> limit in the PA 1.X architecture.  I think this model is compatible with the
> PA 1.1 architecture and hopefully also the x86 architecture.

Why does it have to be compatible with the x86 architecture ?

	Philipp Rumpf


From - Thu Nov 08 21:11:16 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] `PROC_SCSI_LASI7XX' undeclared here
Date: Thu, 18 Nov 1999 21:32:58 -0800 (PST)
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Xref: news.gmane.org gmane.linux.ports.parisc:6462

Hi all,
I tried to rebuild after doing "cvs -z9 update -d" (ggg nods to _A_)
and got the following output:
(and yes I ran make oldconfig/dep/Image sequence)

...
gcc -D__KERNEL__ -I/linux/linux/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -mdisable-fpregs -fwritable-strings  -fno-strict-aliasing -pipe -fno-strength-reduce   -c -o lasi7xx.o lasi7xx.c
lasi7xx.c:38: `PROC_SCSI_LASI7XX' undeclared here (not in a function)
lasi7xx.c:38: initializer element for `proc_scsi_lasi7xx.low_ino' is not constant
lasi7xx.c:48: warning: type defaults to `int' in declaration of `ncr53c7xx_init'
make[3]: *** [lasi7xx.o] Error 1
...

If I recall correctly, a shared enum table had "PROC_SCSI_LASI7XX"
added to it.  I think it was a /proc header file.

Normally I'd fix this myself (and probably will) but don't have time.
If some else does, that would be great. Otherwise, I'll get to it on
the weekend.

I've appended my "linux/.config" file.

grant

#
# Automatically generated make config: don't edit
#

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# CPU type
#
# CONFIG_PA7100 is not set
CONFIG_PA7300=y
CONFIG_PA_1x=y
CONFIG_PA_11=y
# CONFIG_SMP is not set
CONFIG_GSC=y
CONFIG_GSC_DINO=y
CONFIG_GSC_LASI=y
# CONFIG_HIL is not set
CONFIG_PCI=y

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# General setup
#
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_BINFMT_SOM=y
# CONFIG_BINFMT_ELF is not set
# CONFIG_BINFMT_MISC is not set
# CONFIG_BINFMT_JAVA is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_IDE is not set

#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_HD_ONLY is not set

#
# Additional Block Devices
#
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_MD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_BLK_DEV_XD is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_PARIDE_PARPORT=m
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_DEV_HD is not set

#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_NETLINK is not set
# CONFIG_FIREWALL is not set
# CONFIG_FILTER is not set
# CONFIG_UNIX is not set
# CONFIG_INET is not set

#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_BRIDGE is not set
# CONFIG_LLC is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set
# CONFIG_CPU_IS_SLOW is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# SCSI support
#
CONFIG_SCSI=y

#
# SCSI support type (disk, tape, CDrom)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set

#
# SCSI low-level drivers
#
CONFIG_LASI_SCSI=y

#
# Network device support
#
CONFIG_NETDEVICES=y
CONFIG_APRICOT=y
CONFIG_DEC_ELCP=y

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
# CONFIG_GSC_PS2 is not set
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
# CONFIG_PRINTER is not set
# CONFIG_MOUSE is not set
# CONFIG_QIC02_TAPE is not set
# CONFIG_WATCHDOG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set

#
# Video For Linux
#
# CONFIG_VIDEO_DEV is not set

#
# Joystick support
#
# CONFIG_JOYSTICK is not set
# CONFIG_DTLK is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set

#
# Filesystems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_ISO9660_FS is not set
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_EFS_FS is not set

#
# Network File Systems
#

#
# Partition Types
#
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_MAC_PARTITION is not set
# CONFIG_SMD_DISKLABEL is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_NLS is not set

#
# Console drivers
#
# CONFIG_IODC_CONSOLE is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y


From - Thu Nov 08 21:11:16 2018
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From: Philippe Benard <phi@hpfrcu03.france.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] depi?
Date: Fri, 19 Nov 1999 10:08:13 +0100
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Cc: frowand@cup.hp.com, Philipp.H.Rumpf@mathe.stud.uni-erlangen.de,
        sieler@allegro.com, parisc-linux@thepuffingroup.com
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:6463

Nice answer at least it clarify some design options

John David Anglin wrote:
> 
> The architecture that I proposed was suggested by figure 3-1 of the
> Precision Architecture and Instruction Set Manual (1989).  On a level 1
> machine there 2**16-1 virtual 4GB spaces.  Thus, each process can
> have its own virtual space.  The physical page directory contains
> the mapping for the kernel and all processes.  The algorithm for
> updating the TLB(s) from the page directory is very important for
> efficiency and also for security.
> 
> I assume threads will run in a processes virtual space for efficiency.

IMHO efficiency is a side effect, by definition user threads are part of a
process, i.e sharing the process VAS, so your assumption is more than valid.


> 
> 
> This was me again.  The TEXT/DATA/SHARED1/SHARE2 architecture is described
> in the 32-bit PA-RISC Runtime Architecture Document.  It is how hpux 10.20
> does it.  Take a look at Table 1, "Space Register Usage".  However, it doesn't
> really tell you anything about the OS implementation details.  I do know
> that hpux uses different spaces for text and data.

Not always, hpux have a lot of chatr(1) tricks to manage the quadran usage
(again don't beat me, this is a consequence of segmented architecture). So for
a regular (non-sharable text) the magic number is EXEC_MAGIC and for those
kind of executable, the quad1 and quad2 (i.e the index from the 2 high bit of
32 bit addr is 0,1) are the same, this allow the DATA/BSS to be stuffed righ
after the TEXT and then having alinear 2GB (whoa) linear space, yet leaving
the quad3 and quad4 for sharable data (shm and mmap).

On the other hand a shared executable (SHARE_MAGIC) does have quad1 (for TEXT)
that is shared among several process, then having its own uniq space since
shared, all the process using this area share it with the same space AND same
offset (more comment below). The quad2 is process private DATA, then indeed
each SHARE_MAGIC process does have its own private space (different space id).
 

>  As a result, branches
> that cross quadrants must be interspace branches.  The space of the caller
> must be saved and restored on return.  If the same space id is used in SR4-SR7
> for any given process, then I don't think it would be necessary to save
> and restore the instruction space register across calls except for system
> calls where the virtual space changes.

In my EXEC_MAGIC does have a common spaceid for quad1 and quad2 and as in your
example, where you generalize with all four quad equal, that's true that there
is no SR jazz to do for calls.

This bring me to another question, how sharing is done with linux on hppa 

Are you planing of using 'limited' aliasing?

I don't see for now how sharing and copy-on-write could be accomplished, if
thoug those concept are high level concern, they are driven by the
architecture capability and virtual addr alias is one of the weak area of hppa
IMHO.

> 
> The one advantage to reserving the fourth quadrant for the OS is that in
> a system call the OS has direct access to the first three quadrants
> of the processes address space as well as its own space.  

This is an interesting point, does the OS must share a lot with a process?
Personally I think the set of threads UAREA look enough to me I don't see the
point of having the OS being capable of r/w on the 3Gb of the process.

However thing that doesn't exist on unix and I think would be nice to have is
a shared area between the process and the kernel, where the process (and its
threads) can readonly, and where the kernel can r/w, the idea is to stick
there some credentials, even stuff that is usually in the proc.h kthread.h lik
pid, tid, lastrun, various time etc, this to allow a process/thread to get
this data as pointer deref, I know I needed this of process tracing, the
tracing lib would get the CR16, and manage the pa1.1 roll-over by watching a
change in the elapsed time inthe uarea, since the CR16 roll-over in multi
seconds, while the OS does an update on each schedule that is sure to happen
at least every 10ms.
To day the UAREA is part of the user VAS but is not readable and off course
not writable, I think that a sharable part would be helpfull...

So I'm still curious about sharing on linux + hppa.
If someone does have infos on this...


Phi

--
mailto:phi@hpfrcu81.france.hp.com
WTEC Project. Kernel debugging tools

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From: Kevin Vajk <kvajk@cup.hp.com>
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It works for me on an 816/E35.

- Kevin Vajk
  <kvajk@ricochet.net>



Main Menu: Enter command or menu > boot 56/40.6
Interact with IPL (Y or N)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 4


HARD Booted.

------------------------------------------------------------------------------

PARISC/Linux Bootstrap Version 0.1 (interactive)
By Jason Eckhardt
Built Tue Mar 9 16:40:43 CST 1999 by jason@bimbo

Reading parameters...done.
Size = 28672 bytes, entry = 0x00001000, location = 0x0001B000.
Loading kernel...done.
Transferring control to kernel.

*********************************************************

VMLINUX 0.0: Dummy kernel image loaded and executing!


It is now safe to reboot.


It is now safe to reboot.


It is now safe to reboot.


It is now safe to reboot.


It is now safe to reboot.


It is now safe to reboot.
/



-------------------------------------------------------------------------
To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
`unsubscribe' as the subject.



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Hewlett-Packard, in co-operation with the Puffin Group, is open sourcing
their SOM linker product.  This release is an important step in the
project to port Linux to the PA-RISC architecture, as it will eventually
allow developers to more easily test their work.

32-bit versions of the HP/UX operating system use a proprietary SOM
(Spectrum Object Model) binary format to load executables, making it a
natural choice as an object format for early PA-RISC/Linux.  Until
now, there was no way to generate a SOM binary except by using HP/UX
tools, which prevented developers from building on any other platform.
Once the port of the linker is complete, developers will be able to
build from a variety of platforms, taking advantage of more computing
power, and reducing the amount of time that it takes to test new code.

Hewlett-Packard, adding to their extensive list of Linux-related
projects, has made the linker available under the GNU General Public
License, making it freely modifiable and redistributable.  However,
though Hewlett-Packard encourages developers to extend and port their
linker, they do not guarantee that community modifications will be
re-integrated into their official product.

Although the linker does not yet produce functional binaries,
developers and curious hackers are invited to browse the source and
commit patches.  HP's official release, as well as future snapshots,
can be obtained via FTP from
ftp://puffin.external.hp.com/pub/parisc/linker, or from the Puffin
Group's CVS server.  More information regarding CVS can be found at
http://www.thepuffingroup.com/parisc/cvs.html.  Questions about the
SOM linker can be directed to linker-info@thepuffingroup.com.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Cary Coutant <cary@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Today's boot experience on a 735
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Cc: "Jeff Law" <law@cygnus.com>, <bame@debian.fc.hp.com>,
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To: "Philipp Rumpf" <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>,
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Could someone explain to me what the real problem with the _end symbol 
is? I can't seem to extract the essence of the problem from all the mail 
that's flying by.

The SOM linker is supposed to create the symbol "_etext" at the end of 
the last text subspace, the symbol "_edata" at the end of the last 
initialized data subspace, and the symbol "_end" at the end of the last 
data subspace. It shouldn't matter what the name of the subspace is, or 
what its sort key is. Common symbols get allocated at the end of the last 
data subspace, and the "_end" symbol should be at the end of that. If 
something is being allocated by the linker after "_end", I'd like to 
understand why.

You should be able to use "_edata" and "_end" to figure out how much 
memory to initialize to zero at startup, or you could have the boot 
loader do that for you -- the information is in the a.out aux header.

By the way, the SOM linker does support "scripts" of a sort. They're 
called k-files (because you use the -k option to specify them), and they 
allow you to control the placement of your spaces and subspaces within 
the address space.

-cary


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To: cary@cup.hp.com (Cary Coutant)
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> 
> Could someone explain to me what the real problem with the _end symbol 
> is? I can't seem to extract the essence of the problem from all the mail 
> that's flying by.
> 
> The SOM linker is supposed to create the symbol "_etext" at the end of 
> the last text subspace, the symbol "_edata" at the end of the last 
> initialized data subspace, and the symbol "_end" at the end of the last 
> data subspace. It shouldn't matter what the name of the subspace is, or 
> what its sort key is. Common symbols get allocated at the end of the last 
> data subspace, and the "_end" symbol should be at the end of that. If 
> something is being allocated by the linker after "_end", I'd like to 
> understand why.

The SOM linker is not putting "_end" at the end of the last initialized
data subspace.  It is put at the beginning of the $DLT$ subspace which
follows $BSS$.  However, the subspace $DLT$ also contains uninitialized
global common variables.  These objects can be seen to come after _end
if you generate a linker map or examine the kernel with nm.  Any object
that is not explicitly initialized and has global scope ends up in $DLT$.

The kernel needs to determine where its data ends and free memory starts.
Thus, it needs to know where its global common area ends.

Jeff Law suggested that we not use the linker for this, but use the
sort keys to define a subspace that came after $DLT$.  After a little
experimentation trying to define a section $AFTERDLT$, I found that
$DLT$ probably had a sort key of 255 and when I specified a sort key
of 255 for $AFTERDLT$ the linker moved the stuff it was previously
putting into $DLT$ into $AFTERDLT$.  Further, it now sized $AFTERDLT"
and put _end at the end of $AFTERDLT$.  Just what we needed!

I recognize that there is probably a linker bug involved here.  I am
building the kernel with gcc-2.95.2/binutils-2.9.5.  The linker is
/usr/bin/ld:
        92453-07 linker linker ld B.10.33 990520

>From the name $DLT$, I thought that it was a section for data linkage
tables.  I am surprised the global common variables are being placed
in $DLT$.  I would have thought they should have been placed in $BSS$.

> You should be able to use "_edata" and "_end" to figure out how much 
> memory to initialize to zero at startup, or you could have the boot 
> loader do that for you -- the information is in the a.out aux header.

I haven't verified this myself but I believe others have determined
that the kernel needs to clear unitialized data itself because of the
various different way it is loaded.

> By the way, the SOM linker does support "scripts" of a sort. They're 
> called k-files (because you use the -k option to specify them), and they 
> allow you to control the placement of your spaces and subspaces within 
> the address space.

That's good to know and it might provide a better way for the kernel to
determine its end.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi Philipp,

> > VFS: Mounted root (ext2 filesystem)
> > Warning: unable to open an initial console.
> > Attempting to execute '/sbin/init'
> > It seems to be a valid SOM executable.
> > 
> > I am using the PDC_CONSOLE.  I think there was a changed needed to allow
> > opening the PDC_CONSOLE that was discussed previously.  Does anybody
> > remember?  Maybe with this change I can get to sash.
> 
> edit arch/parisc/boot/boot_code/ipl_c.c and replace the "ttyS0" in the command
> line with "tty".  Alternatively, boot in interactive mode and edit the command
> line (again replacing "ttyS0" with "tty").
> 
> That should get you to an (most likely unusable) shell prompt.

I am currently booting with "hpux /stand/vmunix".

This doesn't use the boot code in ipl_c.c.  Maybe the problem is the failure
in main to open "/dev/console".  Possibly, "/dev/console" is not in the ram
disk or, if it is, the kernel is not figuring out which tty to use.

> > I also need to slow down the console messages.
> 
> edit arch/parisc/kernel/pdc_cons.c and put a __delay(N); in pdc_putc.  N is
> approximately the number of CPU cycles you want to wait.  I suggest placing
> it directly after the "case 'n':" as that gives you a per-line delay instead
> of a per-character one.

I tried this and it didn't work.  It looks like __delay() is broken.  The
".balignl" is clearly bogus.  I think the "addib" tests need to bew looked
at more closely.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > > I also need to slow down the console messages.
> > 
> > edit arch/parisc/kernel/pdc_cons.c and put a __delay(N); in pdc_putc.  N is
> > approximately the number of CPU cycles you want to wait.  I suggest placing
> > it directly after the "case 'n':" as that gives you a per-line delay instead
> > of a per-character one.
> 
> I tried this and it didn't work.  It looks like __delay() is broken.  The
> ".balignl" is clearly bogus.  I think the "addib" tests need to bew looked
> at more closely.

__delay() in delay.h is ok except for ".balignl".  The .balignl inserts
a bunch of "ldi 1a,%r0" instructions which do nothing.  I just didn't specify
enough cycles before.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

--- delay.h.orig	Mon Oct 11 14:52:33 1999
+++ delay.h	Sun Nov 21 19:29:28 1999
@@ -11,8 +11,7 @@
 
 extern __inline__ void __delay(unsigned long loops) {
 	asm volatile(
-	"	.balignl	64,0x34000034
-		addib,UV,n      -1,%0,.
+	"	addib,UV,n      -1,%0,.
 		addib,NUV,n     -1,%0,.+8
 		nop"
 		: "=r" (loops) : "0" (loops));


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] Progress
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> Hi Philipp,

Hi.

> I am currently booting with "hpux /stand/vmunix".
>
> This doesn't use the boot code in ipl_c.c.  Maybe the problem is the failure
> in main to open "/dev/console".  Possibly, "/dev/console" is not in the ram
> disk or, if it is, the kernel is not figuring out which tty to use.

Don't do that, then :).

Honestly, I don't think we have a way yet to use the command line the HPUX
boot loader passes us (which I was told uses the ANSI C way of passing
arguments, i.e. argument count in GR26, pointer to NULL-terminated array
of pointers to NULL-terminated arrays of strings in GR25).  Anyone up to
write some glue code that puts that back together into a simple long string
Linux's commandline splitting code can spli again ?

> > > I also need to slow down the console messages.
> > 
> > edit arch/parisc/kernel/pdc_cons.c and put a __delay(N); in pdc_putc.  N is
> > approximately the number of CPU cycles you want to wait.  I suggest placing
> > it directly after the "case 'n':" as that gives you a per-line delay instead
> > of a per-character one.
> 
> I tried this and it didn't work.  It looks like __delay() is broken.  The
> ".balignl" is clearly bogus.

Oh.  Why ?  The way it is intended is to align the following code to a 64-byte
boundary (cache lines on current PA2.0 CPUs are 64 bytes, I think) using nops.

> I think the "addib" tests need to bew looked at more closely.

Possible.  They seem to work fine for the rest of us though (i.e. the delay
loop gets calibrated nicely).

	Philipp Rumpf


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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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> __delay() in delay.h is ok except for ".balignl".  The .balignl inserts
> a bunch of "ldi 1a,%r0" instructions which do nothing.  I just didn't specify
> enough cycles before.

Yup.  They are intended to do nothing to get the following code nicely aligned.
Actually I wonder now whether the best way to implement __delay(x) is:

	mfctl	16, %0		; current interval timer value
	addl	%0, %1, %1	; interval timer value we want to reach

	subl	%1, %0, %0	; want-is
	comb,>	%0,  0, .-4	; while((want-is)>0)
	mfctl	16, %0		; current interval timer value
	
I actually like this quite a lot;

 - should be shorter than the old loop (5 instructions instead of 3
   instructions plus alignment)
 - should work well for low values (mfctl is quite fast and the rest
   is just arithmetic operations - and we don't have any nops in there)
 - more exact than other __delays (interrupts, cache effects,
   alignment, and, at least in theory, power-saving modes can make
   other __delays inexact)
 - more exact wrt our timer source (as CR16 actually _is_ our timer
   source).  This might be a bad thing as it means we don't have a sanity
   check for our timer anymore.

>  extern __inline__ void __delay(unsigned long loops) {
>  	asm volatile(
> -	"	.balignl	64,0x34000034
> -		addib,UV,n      -1,%0,.
> +	"	addib,UV,n      -1,%0,.
>  		addib,NUV,n     -1,%0,.+8
>  		nop"
>  		: "=r" (loops) : "0" (loops));

Just to scare you a bit, have a look at the PCXL ERS, Section 6.4 "Instruction
Lookaside Buffer".  This is basically a one-entry TLB that gets set from the
real TLB and takes some time to do so.

Now picture the page boundary happes between the two addibs.  This loop will
execute at about a third of the speed of a normal delay loop.  The code is
inlined, so only one loop gives you bogus results - if it is the BogoMIPS
calibration loop, udelay(N) will actually only delay for N/3 us, which can
have unexpected effects on hardware we use udelay() for.

	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Today's boot experience on a 735
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        law@cygnus.com, bame@debian.fc.hp.com, parisc-linux@thepuffingroup.com
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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> > You should be able to use "_edata" and "_end" to figure out how much 
> > memory to initialize to zero at startup, or you could have the boot 
> > loader do that for you -- the information is in the a.out aux header.
> 
> I haven't verified this myself but I believe others have determined
> that the kernel needs to clear unitialized data itself because of the
> various different way it is loaded.

The problem is we need to know where free memory starts for our memory
allocator - who does the BSS clearing is another issue.

> > By the way, the SOM linker does support "scripts" of a sort. They're 
> > called k-files (because you use the -k option to specify them), and they 
> > allow you to control the placement of your spaces and subspaces within 
> > the address space.
> 
> That's good to know and it might provide a better way for the kernel to
> determine its end.

Is anyone reasonably fluent in whatever language ld uses ?

	Philipp Rumpf


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Xref: news.gmane.org gmane.linux.ports.parisc:6472

> Now picture the page boundary happes between the two addibs.  This loop will
> execute at about a third of the speed of a normal delay loop.  The code is
> inlined, so only one loop gives you bogus results - if it is the BogoMIPS
> calibration loop, udelay(N) will actually only delay for N/3 us, which can
> have unexpected effects on hardware we use udelay() for.

On x86 things like this, and execution timing differences caused by cache
line alignment and other phase-of-moon issues eventually lead us to not inline
the function. Even then we had to land it on a 32 byte boundary


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> On x86 things like this, and execution timing differences caused by cache
> line alignment and other phase-of-moon issues eventually lead us to not inline
> the function. Even then we had to land it on a 32 byte boundary

That's why I'm thinking about switching to a loop not based upon the time
it takes to execute instructions at all (see CR16 loop).  x86 doesn't have
the option (well, on Pentiums and above you have).

	Philipp Rumpf

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Subject: [hppa-linux] 712/100
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hi all, 
it worked: 712/100 (128ram) with the hipo-0.01

here's what the screen looks like:

PARISC/Linux Bootstrap Version 0.1 (non-interactive)
By Jason Eckhardt
Built Fri Feb 26 17:19:38 CST 1999 by jason@bimbo

IPL_DEBUG: Page zero parameters
  P0_IMM_max_mem:	134217728 (128MB)
  P0_IMM_spa_size:	134217728
  P0_MC_cont_size:	134217728
  P0_MC_phys_size:	134217728
  P0_MC_ad_size:	134217728
  P0_BOOTCPU_mem_free:  0x00008000
  P0_BOOTCPU_hpa:	0xFFFBE000
  P0_BOOTCPU_pdc:	0xF0010488
  P0_BOOTCPU_10msec:	100000
  P0_COUT_iodc_io:	0x00008AAC
  P0_CIN_iodc_io:	0x00008000
  P0_BOOTDEV_iodc_io:	0x0000C114
  P0_COUT_class:	0x00000009
  P0_CIN_class:		0x00000008
  P0_BOOTDEV_class:	0x00000001
Reading parameters...done
(kernel size = 28672 bytes, entry point = 0x00001000)
Loadin kernel...done
Transferring control to kernel

******* (yiipee)

VMLINUX 0.0: Dummy kernel image loaded and executing!

It is now safe to reboot

-------------------------------------------------------------------------
To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
`unsubscribe' as the subject.



From - Thu Nov 08 21:11:17 2018
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From: Andi <der_fisch@fischlustig.de>
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Subject: [parisc-linux] HP-UX 10.20 for free?
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Hello,

I just ordered the HP-UX 10.20 Y2K upgrade from this page.

http://www.software.hp.com/products/Y2K/cd_form.html

Is this really free, there were no hint whether it costs nothing or $10000.

Is it free? Hope so...

-- 
bye
  Andreas

-------------------------------------------------
e-mail: andi@fischlustig.de

*Checkout our cool game for Linux and Win32*
   *http://www.fischlustig.de/clanbomber*
-------------------------------------------------


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From: Magne =?iso-8859-1?Q?=D8stlyngen?= <magne@spacetec.no>
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Subject: [Fwd: Re: [parisc-linux] HP-UX 10.20 for free?]
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So i pushed send without looking at the To: address.. :/
Is there a reason the Reply-To: on list-messages isn't
set to the list?

-------- Original Message --------
From: Magne stlyngen <magne@spacetec.no>
Subject: Re: [parisc-linux] HP-UX 10.20 for free?
To: Andi <der_fisch@fischlustig.de>

> I just ordered the HP-UX 10.20 Y2K upgrade from this page.
> http://www.software.hp.com/products/Y2K/cd_form.html

Isn't that just y2k patches, not the whole os?

If you want to upgrade a workstation:

http://www.hp.com/visualize/programs/y2k/y2k_menu/y2k_upgr/oskit.html

"contact your HP Order Fulfillment Contact, your Sales Representative,
or your HP Authorized Reseller"

Does anyone know if you can order this on the web / by email?

-- 
Magne stlyngen <magne@spacetec.no>
                <magne@skybert.org>


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To: Philipp.H.Rumpf@mathe.stud.uni-erlangen.de (Philipp Rumpf)
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In-Reply-To: <19991122083023.B1310@mathe.stud.uni-erlangen.de> from "Philipp Rumpf" at Nov 22, 99 08:30:23 am
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> > I tried this and it didn't work.  It looks like __delay() is broken.  The
> > ".balignl" is clearly bogus.
> 
> Oh.  Why ?  The way it is intended is to align the following code to a 64-byte
> boundary (cache lines on current PA2.0 CPUs are 64 bytes, I think) using nops.

Missed this point because of the strange nop.  The current addib loop is 3
instructions.  Alignment to a multiple of 16 should be good enough to
ensure that the loop lies within a cache line.  This would insert a maximum
of 3 nops before the loop.  This would provide a slightly more deterministic
result.

Also, re the BogoMIPS number, I think this should be (loops_per_sec*3)/2000000
(i.e., there is one addib and 0.5 nop instructions per loop when the
number of iterations is large.  The number that is currently printed is
loops_per_sec*2/1000000.

The simple loop "addib,NUV,n .;nop" is slower but more deterministic.  It
only needs an alignment of 8 (at most one nop).  The number of instructions
per loop is 2*N-1.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Stan Sieler <sieler@allegro.com>
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Re:

> From: Magne stlyngen <magne@spacetec.no>
> Subject: Re: [parisc-linux] HP-UX 10.20 for free?
> To: Andi <der_fisch@fischlustig.de>
> 
> > I just ordered the HP-UX 10.20 Y2K upgrade from this page.
> > http://www.software.hp.com/products/Y2K/cd_form.html
> 
> Isn't that just y2k patches, not the whole os?

Yes...not only that, at least some of the patches are *OLD*, much
older than you'd expect.  The kit came with 1 OS patch disk and
3 "Application" patch disks (10.01/10.10, 10.20, and 11.00).  
IIRC, the two patches I looked at on the OS patch disk were 
about a year out of date (PDCINFO and ?).

> http://www.hp.com/visualize/programs/y2k/y2k_menu/y2k_upgr/oskit.html

 
> Does anyone know if you can order this on the web / by email?

The site mentioned above seems aimed at people on support contracts,
although I'm not sure about that.

I ordered my 10.20 upgrade via:
http://www.software.hp.com/y2kupgrades/swp_upgrades.html

And, you can do it online.

SS


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Re:

> Missed this point because of the strange nop.  The current addib loop is 3
> instructions.  Alignment to a multiple of 16 should be good enough to
> ensure that the loop lies within a cache line.  This would insert a maximum
> of 3 nops before the loop.  This would provide a slightly more deterministic
> result.
> 
> Also, re the BogoMIPS number, I think this should be (loops_per_sec*3)/2000000
...

This should be timed on a PA-RISC 2.0 machine, just in case.  Some of
them are really good at apparently doing things twice as fast as you'd
expect :)    

Our K460 gets twice the MIPs you'd expect ... i.e., it executes a simple 
timing loop at about 360 million instructions per second ... 
on a single CPU machine with a 180 MHz clock!

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html          www.allegro.com/sieler


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] Progress
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> Missed this point because of the strange nop.  The current addib loop is 3
> instructions.

It is ?

The way it looks to me is it is two instructions in the main loop.

> Alignment to a multiple of 16 should be good enough to
> ensure that the loop lies within a cache line.

I agree.  Still, I like the CR16 based loop so much better.

> Also, re the BogoMIPS number, I think this should be (loops_per_sec*3)/2000000
> (i.e., there is one addib and 0.5 nop instructions per loop when the
> number of iterations is large.

Again, I disagree.  It is two addibs per loop.

> The number that is currently printed is
> loops_per_sec*2/1000000.

We cannot go around and change it either.  It is in architecture-independent
code.  (It's right, too.  If you have "branch if > 0" and "subtract one"
instructions, the number of MIPS is loops_per_sec*2 (2 instructions per
iteration) / 1000000 (the M part).

> The simple loop "addib,NUV,n .;nop" is slower but more deterministic.  It

NUV means no unsigned overflow

-1 + N overflows for N != 0

So, what you really want is "addib,UV -1, %0, .; nop" (or, I think,
"addib,UV,n -1, %0, .") ?

> only needs an alignment of 8 (at most one nop).  The number of instructions
> per loop is 2*N-1.

Pardon me, why the "-1" part ?  For N==1, you execute

addib,UV -1, %0, .	; -1 + 1 overflows
nop			
addib,UV -1, %0, .	; -1 + 0 does not overflow
nop

, so this would imply 2*(N+1) as number of executed instructions.

	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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> Our K460 gets twice the MIPs you'd expect ... i.e., it executes a simple 
> timing loop at about 360 million instructions per second ... 
> on a single CPU machine with a 180 MHz clock!

Keep in mind the "subtract one and branch if register non-zero" is really
only a single instruction - and the following one you can always send to
another pipeline because of the two-entry IAOQ thing.

You can see the same effect on many x86 CPUs, some PPCs and probably other
animals as well.

	Philipp Rumpf


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From: Hugo.van.der.Kooij@caiw.nl
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Subject: Re: [parisc-linux] HP-UX 10.20 for free?
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On Mon, 22 Nov 1999, Andi wrote:

> I just ordered the HP-UX 10.20 Y2K upgrade from this page.
> 
> http://www.software.hp.com/products/Y2K/cd_form.html
> 
> Is this really free, there were no hint whether it costs nothing or $10000.

I didn't pay anything. And the set was brought right at home.

Hugo.

-- 
Hugo van der Kooij; Oranje Nassaustraat 16; 3155 VJ  Maasland
hvdkooij@caiw.nl	http://home.kabelfoon.nl/~hvdkooij/
--------------------------------------------------------------
Use of any of my email addresses for unsollicited (commercial)
    email is a clear intrusion of my privacy and illegal!


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From: Phil Schwan <pschwan@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PA-RISC Linux LXR / Bonsai
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Greetings hackers--

I'm happy to announce that the amazingly useful LXR and Bonsai tools
are now at our disposal.  They sprang fully grown from the beast that
is Mozilla dot org, all praise the project.

They're available for your use at http://puffin.external.hp.com/lxr/
and http://puffin.external.hp.com/bonsai/ respectively.

As you look around, you'll notice that LXR calls into Bonsai and vice
versa--they're really designed to work together, and can aid in
understanding the code and the various patches.

The Bonsai query form is pretty self-explanitory, but if there's
enough demand I'll write up a quick tutorial.  People in the office
have played around with both, but let me know if there are bugs that
didn't catch our eye.

Enjoy!

-Phil


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Phil Schwan wrote:
> Greetings hackers--
> 
> I'm happy to announce that the amazingly useful LXR and Bonsai tools
> are now at our disposal.  They sprang fully grown from the beast that
> is Mozilla dot org, all praise the project.
> 
> They're available for your use at http://puffin.external.hp.com/lxr/
> and http://puffin.external.hp.com/bonsai/ respectively.

Out of curiosity, where does http://insert.link.here/cvs.html point?

Regards,

	Joey

-- 
A mathematician is a machine for converting coffee into theorems.

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Date: Tue, 09 Mar 1999 22:27:03 -0600
From: P G <browndog@home.com>
Organization: @Home Network
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To: puffin <hppa-linux@thepuffingroup.com>, dmandachi@home.com
Content-Type: text/plain; charset=us-ascii
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Subject: [hppa-linux] booted w/ scsi iomega zip
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howdy,

it worked!  BOOTED w/ SCSI Iomega ZIP on 712/100 (128ram) with the
bootstrap_3.bin 

here's the screen:


----------------------------------------------------------------------------

PARISC/Linux Bootstrap Version 0.1 (non-interactive)
By Jason Eckhardt
Built Tue Mar 9 16:40:43 CST 1999 by jason@bimbo

Reading parameters...done.
Size = 28672 bytes, entry = 0x00001000, location = 0x0001B000.
Loading kernel...done.
Transferring control to kernel.

*********************************************************

VMLINUX 0.0: Dummy kernel image loaded and executing!

It is now safe to reboot

It is now safe to reboot

It is now safe to reboot

It is now safe to reboot

It is now safe to reboot

It is now safe to reboot
/




thanks
phil g
browndog@home.com

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On Nov 22, Martin Schulze wrote:
> Out of curiosity, where does http://insert.link.here/cvs.html point?

Woops.  Fixed.  http://www.thepuffingroup.com/parisc/cvs.html, for the
record.

-Phil


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You are not getting the whole OS. You are getting patch's and updated apps..

-Al


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> 
> > Missed this point because of the strange nop.  The current addib loop is 3
> > instructions.
> 
> It is ?
> 
> The way it looks to me is it is two instructions in the main loop.

My timing tests on a 735 indicate that the loop with two addib instructions
is only 25% faster than a loop with one addib and one nop.  You are correct
that there are only two actual instructions in the loop.  However, the timing
measurements indicate that the two addib loop stalls for one instruction
time.  Thus, effectively there is an extra nop in your loop.  As a result,
my comments re the BogoMIPS calculation below are correct for a 735 PA7100.
I think the stall is on the second addib when the forward branch is not taken.

> 
> > Alignment to a multiple of 16 should be good enough to
> > ensure that the loop lies within a cache line.
> 
> I agree.  Still, I like the CR16 based loop so much better.
> 
> > Also, re the BogoMIPS number, I think this should be (loops_per_sec*3)/2000000
> > (i.e., there is one addib and 0.5 nop instructions per loop when the
> > number of iterations is large.
> 
> Again, I disagree.  It is two addibs per loop.
> 
> > The number that is currently printed is
> > loops_per_sec*2/1000000.
> 
> We cannot go around and change it either.  It is in architecture-independent
> code.  (It's right, too.  If you have "branch if > 0" and "subtract one"
> instructions, the number of MIPS is loops_per_sec*2 (2 instructions per
> iteration) / 1000000 (the M part).

[deleted]

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Mon, 22 Nov 1999, Al Smith wrote:

> You are not getting the whole OS. You are getting patch's and updated apps..

Then why was I able to install from the CD's on my HP 715/33 that had no
OS at all?

Hugo.

-- 
Hugo van der Kooij; Oranje Nassaustraat 16; 3155 VJ  Maasland
hvdkooij@caiw.nl	http://home.kabelfoon.nl/~hvdkooij/
--------------------------------------------------------------
Use of any of my email addresses for unsollicited (commercial)
    email is a clear intrusion of my privacy and illegal!


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From: "Soto,  Gene G." <Gene.Soto@bakeroiltools.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] HP-UX 10.20 for free?
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I received the core os as well as the patches  and updated apps (6 cd's).
Problem is I no longer have the cdrom.  Anyone know if it would be possible
to ftp the data from my intel laptop to an external drive or to a dds tape
and install it from there?   I'm no hacker but can follow directions.

-Gene

	----------
	From:  Al Smith [SMTP:Al.Smith@mail.tju.edu]
	Sent:  Monday, November 22, 1999 2:54 PM
	To:  Hugo.van.der.Kooij@caiw.nl
	Cc:  der_fisch@fischlustig.de; parisc-linux@thepuffingroup.com
	Subject:  Re: [parisc-linux] HP-UX 10.20 for free?

	You are not getting the whole OS. You are getting patch's and
updated apps..

	-Al

	
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> > http://www.hp.com/visualize/programs/y2k/y2k_menu/y2k_upgr/oskit.html
> > Does anyone know if you can order this on the web / by email?
> The site mentioned above seems aimed at people on support contracts,
> although I'm not sure about that.

> I ordered my 10.20 upgrade via:
> http://www.software.hp.com/y2kupgrades/swp_upgrades.html
> And, you can do it online.

Only problem is that that's for series 800 servers, and I have a
series 700 (710) workstation.  ANd you can't select that. :-(


-- 
Magne stlyngen <magne@spacetec.no>
                <magne@skybert.org>


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Cannot load IPL, error detected
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Xref: news.gmane.org gmane.linux.ports.parisc:6490

Hi all,

I'm trying to boot via bootp and am getting the following error:

Main Menu: Enter command > bo alt
Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Network Station Address 0060b0-dd9d80
System IP Address 15.16.124.10
Server IP Address 15.16.123.90

Boot IO Dependent Code (IODC) revision 2

Cannot find ENTRY_TEST.

Failed I/O operation with 
ENTRY_IO 
Status = -3

00000031 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
0000000E 00000002 00000000 00000000 00000000 00000000 00000000 00000000 
00000000 00000000 00430320 00000000 00000000 00000000 00000000 00000000 


Error Reading IPL

and then back to the command prompt.
This failed on both the A180 and 715/100.
715 reports "Cannot load IPL, error detected" instead.

Can I assume bootp found the right entry since it knew the IP addresses?
If so, then only the contents of Image aren't right.

What's changed?
I don't know if something my local copy of CVS is wrong or if something
in the CVS tree changed.

I've done:
	o cvs -z9 update -d
	o mv /linux/linux /linux/grundler/linux
		(so other folks using this build host know what's mine.
		this might be screwing me up)
	o find/rm all *.o and *.flags
	o make oldconfig/dep/Image
	o updated /etc/bootptab to reflect change in path name.
	o tried to boot - bootp server is same machine I build on.

(Sample /etc/bootptab entry:
ggg715:\
	hn:\
	sm=255.255.248.0:\
	vm=rfc1048:\
	ht=ether:\
	ha=0800095F7A88:\
	ip=15.16.124.10:\
	bf=/linux/grundler/linux/arch/parisc/boot/Image
)


thanks,
grant


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From: Paul Yaskowski <paul@jthm.org>
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Subject: Re: [Fwd: Re: [parisc-linux] HP-UX 10.20 for free?]
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Xref: news.gmane.org gmane.linux.ports.parisc:6491

  That's my problem as well, I have a 715/33 with 9.04.  I'd really
prefer to cold install 10.20 versus the heavily patching it route.  Any
links for this?

-Paul

% Magne Oestlyngen (magne@metis.spacetec.no) [11.22.99/17:10]:
: > I ordered my 10.20 upgrade via:
: > http://www.software.hp.com/y2kupgrades/swp_upgrades.html
: > And, you can do it online.
: 
: Only problem is that that's for series 800 servers, and I have a
: series 700 (710) workstation.  ANd you can't select that. :-(

-- 
I do desire we may be better strangers.
  -- William Shakespeare, "As You Like It"


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From: Gerhard Klein <G.Klein@edelmann.de>
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Subject: [parisc-linux] Upgrade for HP3000/928LX to HP9000/8xx
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Hallo all,

some weeks ago there was a discusion about differences between
HP3000/xxx and HP9000/xxx. We have a HP3000/928LX. It's possible to
upgrade HP3000/928LX to HP9000/8xx (changing Bios or so). The problem
is, that HP doesn't sell the upgrade kit since a few month. Can anybody
help?

Thanks


Gerhard

--
http://www.edelmann.de
mailto:G.Klein@edelmann.de
Phone: +49 7321 340 368
Fax:   +49 7321 340 363



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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] Cannot load IPL, error detected
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> Can I assume bootp found the right entry since it knew the IP addresses?

It looks to me like it might be hardware/network and I've seen similar
things happening here (where I suspect the flakey component is the network
card in my bootp server).

> What's changed?
> I don't know if something my local copy of CVS is wrong or if something
> in the CVS tree changed.

I still doubt it, you should at least see the boot loader print some
messages.

Sure the bootp server is actually running ?

	Philipp Rumpf

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     Hi all,
     
     this time it worked on my 715/33 booted via rbootd. I can see the
     spinning cursor. And no characters dropped or overwritten.
     
     Great.
     Ulrich
     ---------------------------------------------
      Ulrich Strelow
     <ulrich.strelow@schering.de or
     ulrich_strelow@csi.com>
     Berlin, Germany 
     
     

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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] Progress
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> My timing tests on a 735 indicate that the loop with two addib instructions
> is only 25% faster than a loop with one addib and one nop.

Who cares about how fast the loop is, actually ?

> You are correct that there are only two actual instructions in the loop.
> However, the timing measurements indicate that the two addib loop stalls
> for one instruction time.  Thus, effectively there is an extra nop in your
> loop.

> As a result, my comments re the BogoMIPS calculation below are correct for
> a 735 PA7100.  I think the stall is on the second addib when the forward
> branch is not taken.

Forward branches should be predicted not taken.

	Philipp Rumpf


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= 
= Honestly, I don't think we have a way yet to use the command line the HPUX
= boot loader passes us (which I was told uses the ANSI C way of passing
= arguments, i.e. argument count in GR26, pointer to NULL-terminated array
= of pointers to NULL-terminated arrays of strings in GR25).  Anyone up to
= write some glue code that puts that back together into a simple long string
= Linux's commandline splitting code can spli again ?
= 

I wrote that glue a while back -- it's in real/setup.c and is #if-0-ed.
Unfortunately the strings are stored
in low-ish physical RAM which is overwritten when the our kernel is
loaded.  If we want the hpux command line badly enough, we'll have
to load the kernel at a higher physical location.  It could then
be copied to 0x10000 after we collect the command line.  

One could hard-code a command line in real/setup.c temporarily...

	-P


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> 
> > My timing tests on a 735 indicate that the loop with two addib instructions
> > is only 25% faster than a loop with one addib and one nop.
> 
> Who cares about how fast the loop is, actually ?

You get better control of the number of delay instructions executed.  This
is the definition of __delay() that I like:

/* 
 * __delay(N) executes N+2 or N+3 instructions without any pipeline stalls
 * depending on whether it is aligned on an eight byte boundary or not.
 */

extern __inline__ void __delay(unsigned long loops) {
	asm volatile(
	"	.balignl	8,0x34000034
		addib,UV        -1,%0,.
		addi,NUV        -1,%0,%0"
		: "=r" (loops) : "0" (loops));
}

Increase your BogoMIPS!

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> = Honestly, I don't think we have a way yet to use the command line the HPUX
> = boot loader passes us (which I was told uses the ANSI C way of passing
> = arguments, i.e. argument count in GR26, pointer to NULL-terminated array
> = of pointers to NULL-terminated arrays of strings in GR25).  Anyone up to
> = write some glue code that puts that back together into a simple long string
> = Linux's commandline splitting code can spli again ?
> = 
> 
> I wrote that glue a while back -- it's in real/setup.c and is #if-0-ed.
> Unfortunately the strings are stored
> in low-ish physical RAM which is overwritten when the our kernel is
> loaded.  If we want the hpux command line badly enough, we'll have
> to load the kernel at a higher physical location.  It could then
> be copied to 0x10000 after we collect the command line.  
> 
> One could hard-code a command line in real/setup.c temporarily...

How much higher do you think is necessary?  Hpux seems to use 0x11000.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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= > Unfortunately the strings are stored
= > in low-ish physical RAM which is overwritten when the our kernel is
= > loaded.  If we want the hpux command line badly enough, we'll have
= > to load the kernel at a higher physical location.  It could then
= > be copied to 0x10000 after we collect the command line.  
= 
= How much higher do you think is necessary?  Hpux seems to use 0x11000.

I seem to recall 0x21xxx was where the strings were stored but my
memory is fallable, and printfs are easy to insert into the #if-0-ed
section (#if-1 it too...).  This is probably the "free" area at the
end of the hpux boot loader.  I think the boot loader text+data size
cannot exceed 256k (0x40000), plus maybe 64k (0x10000) for BSS and
heap, plus the 64k unusable at 0, so maybe 0x60000
would be a good conservative spot?

	-P


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> /* 
>  * __delay(N) executes N+2 or N+3 instructions without any pipeline stalls
>  * depending on whether it is aligned on an eight byte boundary or not.
>  */
> 
> extern __inline__ void __delay(unsigned long loops) {
> 	asm volatile(
> 	"	.balignl	8,0x34000034
> 		addib,UV        -1,%0,.
> 		addi,NUV        -1,%0,%0"
> 		: "=r" (loops) : "0" (loops));
> }

I'd agree this loop is the nicest of the "real" delay loops so far, but I'm
still unconvinced there's any advantage to using a "real" delay loop over a
CR16-based one.

	Philipp Rumpf


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> I'd agree this loop is the nicest of the "real" delay loops so far, but I'm
> still unconvinced there's any advantage to using a "real" delay loop over a
> CR16-based one.

I think it depends on what the intended use of __delay() is.  If you just
want to wait a few cycles for a device register to update, then the "real"
delay loop should be fine.  The CR16-based loop will return faster if
there is some kind of hardware event during the loop.  But does it matter?
Usually, you don't care if the delay is longer than specified.

The CR16 loop is probably better for long delays.  However, in this case,
we probably should be sleeping instead.

For small delays, the CR16 loop has the same problems as the "real"
loop (cache and page faults, interrupts, etc).  The CR16 timer also
has a model dependent rate.  My documentation indicates the rate
varies from 0.5 to 2 times the peak instruction rate.  The algorithm
is not as tight as the "real" loop.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> One could hard-code a command line in real/setup.c temporarily...

I think this is in fact reasonable.  The default command line
define needs to move from ipl_c.c to bootdata.h.  This header can then
be loaded by real/setup.c and the default command line set for the
hpux load.  Even, if we get the passing of args from hpux working,
it would still be good to have a default command line so I don't have
to type it all the time.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Re:

> I'd agree this loop is the nicest of the "real" delay loops so far, but I'm
> still unconvinced there's any advantage to using a "real" delay loop over a
> CR16-based one.

If interrupts can happen (and get serviced), a CR16 loop is inherently
unreliable.  If you're looping until CR16 becomes >= some value, X, then
you might find that CR16 goes:   n, n+2, n+3, n-10000, n-9998, ...

I.e., the interrupt servicing could take enough time that the value in
CR16 becomes misleading.  If the new CR16 is < the last seen one, is it
simply because it "rolled over", or because an interrupt came in and 
you've spent an unknown amount of time doing other things?

OTOH, I like the idea of using a drastic change to CR16 as a signal
that "something happened", and consider using that as a clue 
to prematurely exit a counter-based loop.  In that scenario, I'd
expect a routine like:   delay (int loops,  int premature_exit_ok),
which would let the caller decide if a premature (CR16 change based)
exit was allowable.

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html          www.allegro.com/sieler


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To: Stan Sieler <sieler@allegro.com>
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> If interrupts can happen (and get serviced), a CR16 loop is inherently
> unreliable.  If you're looping until CR16 becomes >= some value, X, then
> you might find that CR16 goes:   n, n+2, n+3, n-10000, n-9998, ...
> 
> I.e., the interrupt servicing could take enough time that the value in
> CR16 becomes misleading.  If the new CR16 is < the last seen one, is it
> simply because it "rolled over", or because an interrupt came in and 
> you've spent an unknown amount of time doing other things?

Look at the loop.  What we do is basically

	cr16 = mfctl(16);
	while(((cr16+loops)-mfctl(16))>0);

Which works well, unless CR16 suddenly changes by 2^31 or more.  This
would correspond to 10-20 seconds spent in an interrupt handler which
is unlikely (and will have negative effects on our timer interrupt as
well).

> OTOH, I like the idea of using a drastic change to CR16 as a signal
> that "something happened", and consider using that as a clue 
> to prematurely exit a counter-based loop.  In that scenario, I'd
> expect a routine like:   delay (int loops,  int premature_exit_ok),
> which would let the caller decide if a premature (CR16 change based)
> exit was allowable.

And what exactly would be the advantage ?

	Philipp Rumpf

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Mike Shaver just rebuilt Alex's cross compiling RPMs against glibc 2.0
rather than 2.1, and they're now available on sod:

ftp://sod.res.cmu.edu/pub/parisc/tools/egcs-x-hppa-linux-1.1.1-4.i386.rpm
ftp://sod.res.cmu.edu/pub/parisc/tools/binutils-x-hppa-2.9.1-4.i386.rpm

Note that the revision number is still 4, but these are in fact new. 

-Phil

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From - Thu Nov 08 21:11:19 2018
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Re:

> Look at the loop.  What we do is basically
> 
> 	cr16 = mfctl(16);
> 	while(((cr16+loops)-mfctl(16))>0);

You definitely don't want to do the above!

Even ignoring the possibility of an interrupt that takes us away
for awhile, there's the simple possibility that cr16 might
roll over during your loop.
(On a 100 MHz machine, with it ticking once per clock,
it rolls over about once every 40 seconds or so.)
This means you have an non-0 (although low) probability that your
loop may screw you up royally!

For example, if CR16 was 10 ticks away from rolling over, and
you wanted to delay for 9 ticks there's a non-0 probability
that it will rollover in between checks... poof, a 40 second delay
occurs in your loop! (Perhaps more, if you don't happen to grab
the cr16 within an acceptable window of time at the end of the 40 seconds.)

Detailing the above:

   cr16 = mfctl (16);    (and get's max-10)
   cr16 + 9 = max - 1
   after 4 to 20 loops, depending upon cr16 implementation on the machine,
   you *could* get to:
       while (  ((max - 1) - (max - 2)) > 0)
   and then loop back and get
       while (  ((max - 1) - (0)      ) > 0)

The likelihood of this (an observed rollover fouling you up) would be
greatly minimized if you added code to note the delta in each two
successive reads of cr16 and terminating if the delta became negative
or quite large.

> And what exactly would be the advantage ?

Not having sporadic hangs of 40 seconds?  (or more) 

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html          www.allegro.com/sieler


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Subject: Re: [parisc-linux] HP-UX 10.20 for free?
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Hi:

Hate to beat a dead horse but as someone who is clueless about HP-UX where can
I fnd info on the platforms supported and instillation procedures by this
version of the OS.  I have an older one of their para risc boxes and wonder if
if will work ( I seem to remember it has a model number like 712/60 or so-).

Thanks!

Michael Folsom



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> > Look at the loop.  What we do is basically
> > 
> > 	cr16 = mfctl(16);
> > 	while(((cr16+loops)-mfctl(16))>0);
> 
> You definitely don't want to do the above!
> 
> Even ignoring the possibility of an interrupt that takes us away
> for awhile, there's the simple possibility that cr16 might
> roll over during your loop.

(cr16+loops) < mfctl(16)     does not handle roll-over correctly
((cr16+loops)-mfctl(16)) < 0 does.

> (On a 100 MHz machine, with it ticking once per clock,
> it rolls over about once every 40 seconds or so.)
> This means you have an non-0 (although low) probability that your
> loop may screw you up royally!

No, I haven't.  Think about it.

> For example, if CR16 was 10 ticks away from rolling over, and
> you wanted to delay for 9 ticks there's a non-0 probability
> that it will rollover in between checks... poof, a 40 second delay
> occurs in your loop! (Perhaps more, if you don't happen to grab
> the cr16 within an acceptable window of time at the end of the 40 seconds.)
> 
> Detailing the above:
> 
>    cr16 = mfctl (16);    (and get's max-10)
>    cr16 + 9 = max - 1

cr16+loops	mfctl(16)	((c+l)-m(16))	((c+l)-m(16))>0
0xffffffff	0xfffffff5	0x0000000a	true
0xffffffff	0xfffffff6	0x00000009	true
0xffffffff	0xfffffff7	0x00000008	true
...
0xffffffff	0xffffffff	0x00000000	false
0xffffffff	0x00000000	0xffffffff	false
0xffffffff	0x00000001	0xfffffffe	false
...
0xffffffff	0x00010000	0xfffeffff	false

Handles the roll-over just nicely, doesn't it ?

>    after 4 to 20 loops, depending upon cr16 implementation on the machine,
>    you *could* get to:
>        while (  ((max - 1) - (max - 2)) > 0)
>    and then loop back and get
>        while (  ((max - 1) - (0)      ) > 0)

oh, I think I see your problem.  Of course, we rely on the (a-b) part of
(a-b)>0 to be signed.  (using ">0" for unsigned integers doesn't make much
sense).

	Philipp Rumpf


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: itmr rollover in delay loop
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>> Look at the loop.  What we do is basically
>> 
>>       cr16 = mfctl(16);
>>       while(((cr16+loops)-mfctl(16))>0);
>
>You definitely don't want to do the above!
>
>Even ignoring the possibility of an interrupt that takes us away
>for awhile, there's the simple possibility that cr16 might
>roll over during your loop.

Careful use of unsigned variables fixes the problem.  The easiest way to
explain this is by a small sample program:


main() {

unsigned long a;
unsigned long b;
int k;

a = 0xfffffffd;
b = 0xfffffffa;

printf("a       b        b - a         0 < (int)(b - a)\n\n");

for (k = 0; k < 10; k++) {
        printf("0x%x  0x%x  0x%x  %s\n", a, b, (b-a), (0 < (int)(b-a)) ? "y" : "n");
        b++;
}

printf("\n\n");

b += 0x7ffffff4;

for (k = 0; k < 10; k++) {
        printf("0x%x  0x%x  0x%x  %s\n", a, b, (b-a), (0 < (int)(b-a)) ? "y" : "n");
        b++;
}

}




The output from this program is:


a       b        b - a         0 < (int)(b - a)

0xfffffffd  0xfffffffa  0xfffffffd  n
0xfffffffd  0xfffffffb  0xfffffffe  n
0xfffffffd  0xfffffffc  0xffffffff  n
0xfffffffd  0xfffffffd  0x0  n
0xfffffffd  0xfffffffe  0x1  y
0xfffffffd  0xffffffff  0x2  y
0xfffffffd  0x0  0x3  y
0xfffffffd  0x1  0x4  y
0xfffffffd  0x2  0x5  y
0xfffffffd  0x3  0x6  y


0xfffffffd  0x7ffffff8  0x7ffffffb  y
0xfffffffd  0x7ffffff9  0x7ffffffc  y
0xfffffffd  0x7ffffffa  0x7ffffffd  y
0xfffffffd  0x7ffffffb  0x7ffffffe  y
0xfffffffd  0x7ffffffc  0x7fffffff  y
0xfffffffd  0x7ffffffd  0x80000000  n
0xfffffffd  0x7ffffffe  0x80000001  n
0xfffffffd  0x7fffffff  0x80000002  n
0xfffffffd  0x80000000  0x80000003  n
0xfffffffd  0x80000001  0x80000004  n



Note that the calculation to decide whether rollover occurred is only
good for half the maximum magnitude of the counter (2^31 in our case).



-Frank


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: itmr rollover in delay loop
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> >>       while(((cr16+loops)-mfctl(16))>0);

>         printf("0x%x  0x%x  0x%x  %s\n", a, b, (b-a), (0 < (int)(b-a)) ? "y" : "n");
>         b++;

Note that Frank is modifying b, and evaluating  0 < (int)(b-a), while in
the original example, the modified term was subtracted from the constant
(for one call) one, so it would have been (int)(a-b) > 0 using Frank's
variable names.  This explains why Frank is still seeing "n" for a == b
while I am already seeing false.

	Philipp Rumpf


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Progress - Update
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To: Philipp.H.Rumpf@mathe.stud.uni-erlangen.de (Philipp Rumpf)
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It's hard to believe that my initial post started all this discussion
about delay loops.  My original post was about progress in trying to
get to the sash prompt on my 735.  Well were still not there!

I have modified real/setup.c, boot/boot_code/ipl_c.c and include/asm/bootdata.h
so that a default command line is now set when I boot with the hpux loader.
The default command line now prints during the boot.  However, the system
is still not able to open an initial console.

I removed all LASI stuff from my configuration since some of the boot
messages made it seem that it was trying to do things that were bad.  It
did find the ASP, however, when the LASI stuff was in.

I am now mainly concerned that some of the memory configuration messages
seem strange.  I also got a panic after:

Attempting to execute '/sbin/init'
It seems to be a valid SOM executable.

I got a nice dump of the registers.  I think this shows that interruptions
for bus errors are working.  The panic occured at sem_exit+2C when it
tried to access location fffc5e6c.  I will try to determine how this address
got used by sem_exit.

This is what I copied down from the boot re memory and the kernel:

548872 + 532480 + 131952
...
Clearing BSS 0x00118550 --> 0x00139370
Free mem starts at 0xc0139370
Available Virtual mapped memory 0xc0139370 - c5000000
Memory : 14768K available (536K kernel code, 1016K data, 64K init) [c0000000, c1000000]
...
initrd : c009e000 - c00f5800
free_area_init : c0143000 c2000000
mem_map = c0143000
...

The initial BSS clear and the start of free memory are correct.  However,
the 14768K available and the upper limit for the free_area_init appear
incorrect.

Any thoughts?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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>I have modified real/setup.c, boot/boot_code/ipl_c.c and include/asm/bootdata.h
>so that a default command line is now set when I boot with the hpux loader.
>The default command line now prints during the boot.  However, the system
>is still not able to open an initial console.

ramdisk known to be good (which one do you use, md5sum if possible) ?
.config known to be good (attach it) ?
are you up-to-date with the cvs tree (I have no idea which caches the 735 has,
but cache flushes won't harm (well, they do harm performance)) ?

> Available Virtual mapped memory 0xc0139370 - c5000000
> Memory : 14768K available (536K kernel code, 1016K data, 64K init) [c0000000, c1000000]
> ...
> initrd : c009e000 - c00f5800
> free_area_init : c0143000 c2000000
> mem_map = c0143000
> ...
> 
> The initial BSS clear and the start of free memory are correct.  However,
> the 14768K available and the upper limit for the free_area_init appear
> incorrect.

Only using 16 MB RAM is hard-coded for now.  (Not because we can't detect
more, but because we don't want to use more as that might require additional
BTLB entries.).

	Philipp Rumpf


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From: Kirk Bresniker <kirkb@chrome.rose.hp.com>
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Philipp,

| are you up-to-date with the cvs tree (I have no idea which caches the 735 has,
| but cache flushes won't harm (well, they do harm performance)) ?

The cache flush instructions are architected to cause a processor to memory transfer
iff the cache line is dirty, while an instruction is executed, unless a dirty 
cache line is referenced, memory bandwidth is not consumed.

KMB
--
+============================================================+
|       Kirk Bresniker    	(916) 748-2393		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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>| are you up-to-date with the cvs tree (I have no idea which caches the 735
>| has, but cache flushes won't harm (well, they do harm performance)) ?
> 
> The cache flush instructions are architected to cause a processor to memory
> transfer iff the cache line is dirty, while an instruction is executed,
> unless a dirty cache line is referenced, memory bandwidth is not consumed.

At the current rate of cache flushes (way way too high), the main factor wrt
performance is indeed the execution of the instructions.

As soon as we've implemented page colouring (which turns out to be really very
close to large page support), I expect us to get along with very very few
cache flushes - basically I hope we can avoid them completely.

	Philipp Rumpf


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP-UX 10.20 for free?
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Michael Folsom wrote:
> Hi:
> 
> Hate to beat a dead horse but as someone who is clueless about HP-UX where ca
>   n
> I fnd info on the platforms supported and instillation procedures by this
> version of the OS.  I have an older one of their para risc boxes and wonder i
>   f
> if will work ( I seem to remember it has a model number like 712/60 or so-).

Micheal,
You can start digging here:
	http://www.unixsolutions.hp.com/products/hpux/10_20_os.html

grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253

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From: "Muench, David" <dmuen@retrotech.com>
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Subject: RE: [hppa-linux] Bootstrap take 3
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Worked great here on my 715/80.

Size = 28762 bytes, entry = 0x00001000, location = 0x0001B000

---
David Muench - Project System Administrator
Retrotech, Inc. - http://www.retrotech.com/



-----Original Message-----
From: Jason Eckhardt [mailto:jason@equator.com]
Sent: Tuesday, March 09, 1999 6:46 PM
To: hppa-linux@thepuffingroup.com
Subject: [hppa-linux] Bootstrap take 3



Following is take #3 of the bootstrap test.
The second test ran fine on my C160 but failed on a number of other
machines.
Its very difficult for me to determine the failures without having the
machine here to mess with. I will try a few different ideas and put them
up for people to try over the next couple days as time permits.

I still am unable to upload to the ftp site. So once again, I have included
the bootstrap in the mail.

If the test runs successfully you should see this at the end:
---------------------------------------------------------------------------

Reading parameters...done.
Size = 28672 bytes, entry = 0x00001000, location = 0xnnnnnnnn.
Loading kernel...done.
Transferring control to kernel.

*********************************************************

VMLINUX 0.0: Dummy kernel image loaded and executing!


It is now safe to reboot. (you should see this at least once, and upto 6
times).

---------------------------------------------------------------------------
The very last thing you should see is a "spinning cursor" which means
you reached the last statement in the bootstrap (i.e. passed). (this is
an infinite loop, the cursor will spin forever until you reboot).

It seems that some characters get dropped on some systems, usually when
booting over the network. I don't know why this is the case, and HPs
documentation doesn't say anything about needing delays during console I/O.






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Philipp Rumpf wrote:
> 
> >| are you up-to-date with the cvs tree (I have no idea which caches the 735
> >| has, but cache flushes won't harm (well, they do harm performance)) ?
> >
> > The cache flush instructions are architected to cause a processor to memory
> > transfer iff the cache line is dirty, while an instruction is executed,
> > unless a dirty cache line is referenced, memory bandwidth is not consumed.
> 
> At the current rate of cache flushes (way way too high), the main factor wrt
> performance is indeed the execution of the instructions.
> 
> As soon as we've implemented page colouring (which turns out to be really very
> close to large page support), I expect us to get along with very very few
> cache flushes - basically I hope we can avoid them completely.
> 
>         Philipp Rumpf

No such luck.  You'll need cache flushing in drivers for non-coherent IO.

-Frank


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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: itmr rollover in delay loop
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Xref: news.gmane.org gmane.linux.ports.parisc:6515

Re:

> 
> >> Look at the loop.  What we do is basically
> >> 
> >>       cr16 = mfctl(16);
> >>       while(((cr16+loops)-mfctl(16))>0);
> >
> >You definitely don't want to do the above!
> >
> >Even ignoring the possibility of an interrupt that takes us away
> >for awhile, there's the simple possibility that cr16 might
> >roll over during your loop.
> 
> Careful use of unsigned variables fixes the problem.  The easiest way to
> explain this is by a small sample program:
...

 
Actually, unsigned integers cause the problem, as seen below.

I'd been assuming cr16 and mfctl were uint32, not int32, hence my concern
about a possible bug.  (I don't have easy access to the source code)


NOTE: with "int32 cr16" and "int32 mfctl (int crnum);" I don't
see any problems.


Assumptions:
   cr16 is a uint32  (note: better to use than "unsigned long int")
   mfctl is a uint32 function
   loops is a reasonable value 


The loop ending will be *missed* if the precise
value of CR16:    original_cr16 + loops
happens to be missed (again, using uint32).  This can easily happen if CR16 is
ticking faster than the clock (which is allowed by the
architecture) *or* can happen if an interrupt occurs shortly
before CR16 hits the final expected value.

Note that the unsigned arithmetic means that the subtraction in
the "while" control will always be > 0 except for the precise
time when cr16 = original_cr16 + loops.

Here's sample code demonstrating the problem, along with
sample output.

(the following should loop 5 times...but it loops far more!)

Startup: cr16 = 0x1e241, loops = 5, cr16 + loops = 0x1e246
  (loop, cr16 = 0x   1e242), ((cr16 + loops) - mfctl(16)) = 0x       4)
  (loop, cr16 = 0x   1e243), ((cr16 + loops) - mfctl(16)) = 0x       3)
  (loop, cr16 = 0x   1e244), ((cr16 + loops) - mfctl(16)) = 0x       2)
  (loop, cr16 = 0x   1e245), ((cr16 + loops) - mfctl(16)) = 0x       1)
   (extra tick)
  (loop, cr16 = 0x   1e247), ((cr16 + loops) - mfctl(16)) = 0xffffffff)
  (loop, cr16 = 0x   1e248), ((cr16 + loops) - mfctl(16)) = 0xfffffffe)
  (loop, cr16 = 0x   1e249), ((cr16 + loops) - mfctl(16)) = 0xfffffffd)
  (loop, cr16 = 0x   1e24a), ((cr16 + loops) - mfctl(16)) = 0xfffffffc)
  (loop, cr16 = 0x   1e24b), ((cr16 + loops) - mfctl(16)) = 0xfffffffb)
  (loop, cr16 = 0x   1e24c), ((cr16 + loops) - mfctl(16)) = 0xfffffffa)
  (loop, cr16 = 0x   1e24d), ((cr16 + loops) - mfctl(16)) = 0xfffffff9)
  (loop, cr16 = 0x   1e24e), ((cr16 + loops) - mfctl(16)) = 0xfffffff8)
  (loop, cr16 = 0x   1e24f), ((cr16 + loops) - mfctl(16)) = 0xfffffff7)
  (loop, cr16 = 0x   1e250), ((cr16 + loops) - mfctl(16)) = 0xfffffff6)
  (loop, cr16 = 0x   1e251), ((cr16 + loops) - mfctl(16)) = 0xfffffff5)
  (loop, cr16 = 0x   1e252), ((cr16 + loops) - mfctl(16)) = 0xfffffff4)
  (loop, cr16 = 0x   1e253), ((cr16 + loops) - mfctl(16)) = 0xfffffff3)
oops: we've looped too many times!

-----------------------------cut here for source code-------------------------
unsigned long cr16;
unsigned long simulated_cr16;
unsigned long loops;

/***************************************************************/
unsigned long mfctl (int crnum)

      /* ticks once per call ... sometimes twice :) */

   {

   simulated_cr16++;

         /* To demonstrate the problem, let's always make it */
         /* tick more than once at *exactly* the worst time... */

   if ((cr16 + loops) == simulated_cr16)
      {
      simulated_cr16++;
      printf ("   (extra tick)\n");
      }

   return simulated_cr16;

   } /* end mfctl proc */
/***************************************************************/

main() {

   int
      actual_loops;


   simulated_cr16 = 123456;   /* actual value irrelevant */

   cr16 = mfctl (16);         /* every call to mfctl(16) causes a simulated tick

   loops = 5;                 /* desired number of loops */
   actual_loops = 0;          /* track number we've actually done */

   printf ("Startup: cr16 = 0x%x, loops = %d, cr16 + loops = 0x%x\n",
                  cr16, loops, (cr16 + loops));

   while (((cr16 + loops) - mfctl (16)) > 0)
      {
      printf ("  (loop, cr16 = 0x%8x), ((cr16 + loops) - mfctl(16)) = 0x%8x)\n",
                  simulated_cr16,
                  ((cr16 + loops) - simulated_cr16));

      if (actual_loops++ > (loops + 10))
         {
         printf ("oops: we've looped too many times!\n");
         exit (1);
         }
      }                          /* while loop */

   printf ("\nExited normally from delay loop.  At exit:\n");
   printf ("cr16 = 0x%8x, ((cr16 + loops) - mfctl(16)) = 0x%8x)\n",
                  simulated_cr16,
                  ((cr16 + loops) - simulated_cr16));

   } /* end main proc */
/***************************************************************/
-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html          www.allegro.com/sieler


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> Actually, unsigned integers cause the problem, as seen below.

That's why no one, ever, used unsigned integers.  The assembly source
was clear in using ">" (signed) and the C pseudo-code used "> 0" which
pretty much implies the value compared is signed.

<removed 120 line "there's only one unsigned integer > 0" proof>

	Philipp Rumpf


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Frank Rowand wrote:
> Philipp Rumpf wrote:
...
> > As soon as we've implemented page colouring (which turns out to be really v
>   ery
> > close to large page support), I expect us to get along with very very few
> > cache flushes - basically I hope we can avoid them completely.
> > 
> >         Philipp Rumpf
> 
> No such luck.  You'll need cache flushing in drivers for non-coherent IO.

Frank is (as usual) right. Rule of thumb is if the box doesn't have an
I/O MMU (aka ccio or sba) or not using it, then it's not I/O coherent.
Every DMA transaction will require flushes/purges before or after
(inbound vs. outbound) of payload and device control data on such boxes.

My understanding is only PA2.0 supports speculative prefetching.
AFIAK that's ok since all PA2.0 boxes have an I/O MMU and the prefetched
data will be recalled/dropped during the course of the DMA.

Conclusion: In the "performance code path", PA1.1 will generally (some
PA1.1 are also I/O coherent) need flushes/purges and PA2.0 won't.
However, I wouldn't code this based on PA2.0 vs PA1.1 since the presence
of U2/Uturn/sba are what matter. And we will probably want to ignore
those chips for PA2.0 bringup (ie bringup will be not be I/O coherent).

grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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> I got a nice dump of the registers.  I think this shows that interruptions
> for bus errors are working.  The panic occured at sem_exit+2C when it
> tried to access location fffc5e6c.  I will try to determine how this address
> got used by sem_exit.

Anybody know where or how the pointer "current" is defined?  It is not 
in the map.  I think it is supposed to point current processes task_struct.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Anybody know where or how the pointer "current" is defined?  It is not 
> in the map.  I think it is supposed to point current processes task_struct.

current is a macro getting the task struct by manipulating %esp



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> > Anybody know where or how the pointer "current" is defined?  It is not 
> > in the map.  I think it is supposed to point current processes task_struct.

include/asm-parisc/current.h

static inline struct task_struct * get_current(void)
{
        struct task_struct *current;

        asm("copy 30,%0" : "=r" (current));
        
        return (struct task_struct *)((long) current & (~8191));
}
 
#define current get_current()

> current is a macro getting the task struct by manipulating %esp

GR30 in our case.

	Philipp Rumpf


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Subject: Re: [parisc-linux] Progress - Update
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> GR30 in our case.

GR30 (sp) appears ok.  It had a value of 0xc019e6c0 when the panic
in sem_exit occured.  The panic occured in this code:

        if ((q = current->semsleeping)) {
		if (q->prev)

The value for q (GR20) was 0xfffc5e6c.  Thus, the initialization of
the process task structure needs to be looked at.

I built another kernel without IPC.  In this one, the kernel panic'd
in get_unused_buffer_head.  This one occured because unused_list was
zero.  Again, it looks like there is an initialization problem somewhere.
I think others have reported this problem in the past.  It looks like:

bad address 0000001c (code 15)
Kernel panic: bad address

Here is the code:

static struct buffer_head * get_unused_buffer_head(int async)
{
        struct buffer_head * bh;

	recover_reusable_buffer_heads();
	if (nr_unused_buffer_heads > NR_RESERVED) {
		bh = unused_list;
		unused_list = bh->b_next_free;

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Xref: news.gmane.org gmane.linux.ports.parisc:6522

On Wed, Nov 24, 1999 at 03:55:38PM -0500, John David Anglin wrote:
> The default command line now prints during the boot.  However, the system
> is still not able to open an initial console.
> 
> I removed all LASI stuff from my configuration since some of the boot
> messages made it seem that it was trying to do things that were bad.  It
> did find the ASP, however, when the LASI stuff was in.

You need to enable LASI support to get ASP support.  I'll start working
on this again as soon as I can (which may not be very soon given my
imminent change of job and continent).  Maybe I'll get a chance at
LinuxTag in Bremen.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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=============================================
 PA-RISC/Linux Weekly News - November 25, 1999
=============================================
   http://www.thepuffingroup.com/parisc/
   vol 1, iss 2
 
 This Week:
   News & Announcements
   PA-RISC/Linux Developer Profile
      David Kennedy
   State of the Port Summary
   This Week's CVS Activity


====================
News & Announcements
====================
--------------------------------
PA-RISC/Linux Bonsai now online!
--------------------------------
The Puffin Group has implemented a Bonsai system for the PA-RISC/Linux
porting project.  Bonsai is a query interface to the CVS source
repository, which you can access through:

   http://puffin.external.hp.com/bonsai/rview.cgi.
 
----------------------------------------
Hewlett-Packard releases SOM linker code
---------------------------------------
Hewlett-Packard, in co-operation with The Puffin Group, is releasing the
source code to its SOM linker product. This release is an important step
in the project to port Linux to the PA-RISC architecture, as it will
eventually allow developers to more easily test their work.

32-bit versions of the HP/UX operating system use a proprietary SOM
(Spectrum Object Model) binary format to load executables, making it a
natural choice as an object format for early PA-RISC/Linux. Until now,
there was no way to generate a SOM binary except by using HP/UX tools,
which prevented developers from building on any other platform. Once the
port of the linker is complete, developers will be able to build from a
variety of platforms, taking advantage of more computing power, and
reducing the amount of time that it takes to test new code.

Hewlett-Packard, adding to their extensive list of Linux-related
projects, has made the linker available under the GNU General Public
License, making it freely modifiable and redistributable. However,
though Hewlett-Packard encourages developers to extend and port their
linker, they do not guarantee that community modifications will be
re-integrated into their official product.

Although the linker does not yet produce functional binaries, developers
and curious hackers are invited to browse the source and commit patches.
HP's official release, as well as future snapshots, can be obtained via
FTP from ftp://puffin.external.hp.com/pub/parisc/linker, or from the
Puffin Group's CVS server.  More information regarding CVS can be found
at http://www.thepuffingroup.com/parisc/cvs.html.  Questions about the
SOM linker can be directed to linker-info@thepuffingroup.com.

---------------------------------------------
PA-RISC/Linux Hardware Database now available
---------------------------------------------
To help developers solve the eternal "will this box run Linux?"
question, The Puffin Group has made available a database of PA-RISC
hardware.  This database describes the different hardware and machine
configurations that are available.

Testers are encouraged to add their own hardware information to the
database:

   http://www.thepuffingroup.com/parisc/hw.html

--------------------------------------------------------
Linux developers get L2000 machine for PA2.0 development
--------------------------------------------------------
In order to further development of Linux on PA2.0 hardware, The Puffin
Group accepted deliver of an L2000 HP system that will be shared for
PA-RISC/Linux development work.

------------------------------------
PA-RISC/Linux Hackers invade Bremen!
------------------------------------
Perhaps "invade" is a bit strong a word for it, but Alan Cox, Matthew
Wilcox, Martin Petersen, and Philip Rumpf are all going to be at the
LinuxTag conference in Bremen this weekend.  There's a good chance that
some random hacking could erupt, as Matthew is apparently taking his 715
with him on the trip, single-handedly redefining the whole concept of a
"portable computer".  The conference page is here:

   http://linux.inbremen.de

========================
This Week's CVS Activity
========================

Alan Cox merged in the kernel 2.2.12 UFS changes.

Phillip Rumpf made numerous changes to cache code.

Grant Grundler improved the build system through a variety of fixes.
 
===============================
PA-RISC/Linux Developer Profile
===============================
This week's profile: Dave Kennedy (who, yesterday, celebrated his 23rd
birthday.  Happy Birthday, Spud! :)

David "Spud" Kennedy
--------------------
Email: dkennedy@thepuffingroup.com
Homepage: http://www.engsoc.carleton.ca/~dkennedy
Favourite colour: blue
Current age: 23
Current location: Ottawa, Canada

Q:  What's your current workplace/job:

DLK: Senior Linux Consultant at The Puffin Group.

Q:  Why did you decide to contribute to the PA-RISC/Linux porting
project?

DLK: We have a lot of cool hardware lying around The Puffin Group
offices, and I would just like to see Linux running on it.

Q:  What parts of the port have you worked on so far?

DLK: Hardware detection code, some SCSI stuff.

Q:  What do you think is your most significant contribution to date?

DLK: I brought Grant Grundler coffee once.

Q:  What bits of the port are you interested in working on the the
future?

DLK: Probably some memory management stuff.

As an aside, it should also be known that Dave also developed the
backend to the new PA-RISC/Linux Hardware Database (see "News &
Announcements" above.

=========================
State of the Port Summary
=========================

Kernel:
     based on 2.2.13

Supported Machines:
     most of the A180c, parts of 712 Gecko workstations

Supported Hardware:
     SCSI, Lan and PS/2 on Lasi I/O controller, Dino PCI
     Tulip ethernet

Project Page:
     http://www.thepuffingroup.com/parisc/

Latest Workable Image:
     ftp://puffin.external.hp.com/pub/parisc/linux-2.2.13.gz

Running PA-RISC/Linux HOWTO:
     http://thepuffingroup.com/parisc/recipe.html

-- 
Alex deVries
Vice President of Engineering
The Puffin Group

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Phil Schwan wrote:
> 
> Mike Shaver just rebuilt Alex's cross compiling RPMs against glibc 2.0
> rather than 2.1, and they're now available on sod:
> 
> ftp://sod.res.cmu.edu/pub/parisc/tools/egcs-x-hppa-linux-1.1.1-4.i386.rpm
> ftp://sod.res.cmu.edu/pub/parisc/tools/binutils-x-hppa-2.9.1-4.i386.rpm
> 
> Note that the revision number is still 4, but these are in fact new.

And hey -- they even work (for me)!

[shaver@loonie /tmp]$ cat test.c
int main () { return 0; }
[shaver@loonie /tmp]$ hppa-linux-gcc -c test.c
[shaver@loonie /tmp]$ file test.o
test.o: ELF 32-bit MSB relocatable, PA-RISC, version 1
[shaver@loonie /tmp]$

Mike

-- 
169530.70 140316.26

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With the contributions of Deb Richardson and David Kennedy, the Puffin
Group has created the PA-RISC hardware database.  This is intended to
solve the problem of not understand what hardware components exist in
which machine.

The database has several machines preloaded, I'd encourage people with
different machines that currently run HPUX to contribute by filling out
the web form for their particular machine.  This will enable us to
support more PA-RISC machines in the future.

The URL is:

http://www.thepuffingroup.com/parisc/hw.html

There are certain features that will be completed in the next couple of
weeks.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Hi all,

I wonder if I could cross-compile the kernel on one of my Linux/i386 boxes....

Is it possible?


-- 
bye
  Andreas

-------------------------------------------------
e-mail: andi@fischlustig.de

*Checkout our cool game for Linux and Win32*
   *http://www.fischlustig.de/clanbomber*
-------------------------------------------------


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Subject: [parisc-linux] Parallel port hardware
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Can anyone point me to info on the electrical properties of the parallel ports
on 712 or 715 machines?

The Papers project (Purdue Adapter for Parallel Execution and Rapid Synchronisation)

http://garage.ecn.purdue.edu/~papers/Index.html

have an interesting approach to building parallel machines.

Oversimplifying their fairly complex analysis (see page above for details), they argue
that the hard issue is latency for synchronisation, not bandwidth, so you can do a lot
of fairly interesting things with very simple synchronisation logic attached to a
parallel port and software that exploits it from user space, without the overhead of
kernel calls, packetisation, device drivers, .... 

Their most complex device has a few dozen TTL logic chips. Their simplest one handles
up to about 8 machines using just a cable and their software on Linux PCs:

http://garage.ecn.purdue.edu/~papers/WAPERS/

I'm thinking that 8 715s might make an interesting parallel engine, but the cable device
only works if the parallel port's control lines are implemented as open collector TTL.
Where can I discover whether they are?


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Alex deVries wrote:
> =============================================
>  PA-RISC/Linux Weekly News - November 25, 1999
> =============================================
...

> Q:  What do you think is your most significant contribution to date?
> 
> DLK: I brought Grant Grundler coffee once.

<grin>...I'm flattered...fortunately Dave's actually done more...
I think he brought pastries too... ;^)


> Supported Machines:
>      most of the A180c, parts of 712 Gecko workstations

parts of 715s too (more once ASP is supported).


cheers,
grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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----- Forwarded message from Sandy Harris -----


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> Early 715s (/33, /50, /75) use a WDC 16C522 (or is it 552?) for the 2

The one in my 715/33 is labelled 16C552-JT.

	


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Subject: [parisc-linux] HPUX 9.05 notes
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For a lark I tried the "recipe" instructions on a 715/64 
running HPUX 9.05.  A coupla notes:

1) You need to install flex.  Perhaps also some autoconf stuff
and a native HPUX gcc in addition to the cross compiler,
too; those I already had so I wouldn't have noticed if they
were needed.

2) You need to export CONFIG_SHELL=/linux/bin/bash before
running gcc's ./configure or the HPUX /bin/sh dies with
an exhausted "2k buffer" :-P.

3) You need to edit linux/scripts/mkdep.c and take out
the call to getpagesize() (a failed compile will tell you
where.)  Substitute a constant (4096, it appears from 
asm-parisc/.)

How far does this get you?  About up to here:

make
gcc -D__KERNEL__ -I/linux/linux/include -Wall -Wstrict-prototypes -O2
-fomit-frame-pointer -mdisable-fpregs -fwritable-strings
 -pipe -fno-strength-reduce  -c -o init/main.o init/main.c
as:  @line#614 [err#1052]
  Directive name not recognized - BALIGNL
as:  @line#654 [err#1052]
  Directive name not recognized - BALIGNL
init/main.c: In function `do_basic_setup':
init/main.c:1295: warning: implicit declaration of function `gsc_init'
init/main.c: At top level:
init/main.c:1397: warning: type mismatch with previous external decl
/linux/linux/include/asm/unistd.h:879: warning: previous external decl of
`sys_dup'
make: *** [init/main.o] Error 1


I don't know how much of this might be recent CVS breakage and how
much is due to the crusty OS, but I hope this is of help to 
someone.

--
Brian S. Julin


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Subject: Re: [parisc-linux] HPUX 9.05 notes
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I had similar experiences building under 9.01.

> How far does this get you?  About up to here:
> 
> make
> gcc -D__KERNEL__ -I/linux/linux/include -Wall -Wstrict-prototypes -O2
> -fomit-frame-pointer -mdisable-fpregs -fwritable-strings
>  -pipe -fno-strength-reduce  -c -o init/main.o init/main.c
> as:  @line#614 [err#1052]
>   Directive name not recognized - BALIGNL
> as:  @line#654 [err#1052]
>   Directive name not recognized - BALIGNL

Are you using as from binutils?  You definitely will not have this problem
with the latest binutils cvs source and probably not with the latest
released version 2.9.1.  Build gcc using --with-gnu-as (see INSTALL
directions for hppa).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Sandy Harris wrote:
> 
> Can anyone point me to info on the electrical properties of the parallel ports
> on 712 or 715 machines?
> 

The electrical properties of the parallel port are likely identical to
that of the rest of the parallel ports in the world.  The only document
I've ever seen on the parallel ports of the 712 are in the Lasi
documentation.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Earlier I saw a message posted about adding machines and their
descriptions to the puffin site, so I went to do that and 
when I follow the instructions, etc, etc the addmachine.php3
kicks out an error, which is embedded and does not show up,
of:

	The IOSCAN output is not in the correct format. Please try
	that again. Exiting a  that is not open

anyhow I am including all the needed info and if someone can finger
out my problem please tell me:  __TIA__

Name: Carl Johnson
Email:
Machine Model: J200
Model Command Output: 9000/770/J200
Picture:
IOScan Output:
:pa:F:F:F:-1:-1:4294967295:bc:root:::0:root:root:CLAIMED:BUS_NEXUS::0
pa:pa:F:F:F:-1:-1:4294967295:bc:bus_converter:8:88 7 8 76 0 0 11 80 0 0 0 0 0 0
0 0 :1:root.ccio:ccio:CLAIMED:BUS_NEXUS:I/O Adapter:1
pa:wsio:F:F:F:0:0:0:ext_bus:c720:8/0:1 240 0 132 0 0 137 128 0 0 0 0 98 113 0 2
:0:root.ccio.c720:c720:CLAIMED:INTERFACE:GSC built-in Fast/Wide SCSI Interface:0
scsi:wsio:F:F:F:-1:-1:4294967295:target:tgt:8/0.6:0 0 2 2 0 0 0 0 71 241 106 203
1 58 127 247 :0:root.ccio.c720.tgt:tgt:CLAIMED:DEVICE::0
scsi:wsio:T:T:F:31:188:24576:disk:sdisk:8/0.6.0:0 0 2 2 0 0 0 0 71 241 106 203 1
58 127 247 :0:root.ccio.c720.tgt.sdisk:sdisk:CLAIMED:DEVICE:SEAGATE ST31230W:0
scsi:wsio:F:F:F:-1:-1:4294967295:target:tgt:8/0.7:0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 :1:root.ccio.c720.tgt:tgt:CLAIMED:DEVICE::0
scsi:wsio:F:T:F:-1:203:28672:ctl:sctl:8/0.7.0:0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:0:root.ccio.c720.tgt.sctl:sctl:CLAIMED:DEVICE:Initiator:0
pa:core:F:F:F:-1:-1:4294967295:ba:core_adapter:8/12:1 240 0 139 0 0 129 0 0 0 0
0 124 133 0 0 :0:root.ccio.bus_adapter:bus_adapter:CLAIMED:BUS_NEXUS:Core I/O
Adapter:0
core:wsio:F:T:F:-1:216:131072:ext_bus:CentIf:8/12/0:1 240 0 10 0 0 116 0 0 0 0 0
0 0 0 0 :2:root.ccio.bus_adapter.CentIf:CentIf:CLAIMED:INTERFACE:Built-in
Parallel Interface:2
core:wsio:F:T:F:-1:66:0:audio:audio:8/12/1:1 240 0 10 0 0 123 0 0 0 0 0 0 0 0 0
:0:root.ccio.bus_adapter.audio:audio:CLAIMED:INTERFACE:Built-in Audio:0
core:wsio:F:T:F:-1:1:0:tty:asio0:8/12/4:1 240 0 138 0 0 140 0 0 0 0 0 101 169 0
2 :0:root.ccio.bus_adapter.asio0:asio0:CLAIMED:INTERFACE:Built-in RS-232C:0
core:wsio:F:F:F:0:0:65536:ext_bus:c720:8/12/5:1 240 0 138 0 0 130 0 0 0 0 0 104
87 0 2 :1:root.ccio.bus_adapter.c720:c720:CLAIMED:INTERFACE:Built-in SCSI:1
scsi:wsio:F:F:F:-1:-1:4294967295:target:tgt:8/12/5.7:0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 :2:root.ccio.bus_adapter.c720.tgt:tgt:CLAIMED:DEVICE::1
scsi:wsio:F:T:F:-1:203:94208:ctl:sctl:8/12/5.7.0:0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:1:root.ccio.bus_adapter.c720.tgt.sctl:sctl:CLAIMED:DEVICE:Initiator:1
core:wsio:F:T:F:-1:52:0:lan:lan2:8/12/6:1 240 0 138 0 0 138 0 0 0 0 0 93 53 0 2
:0:root.ccio.bus_adapter.lan2:lan2:CLAIMED:INTERFACE:Built-in LAN:0
core:wsio:F:T:F:-1:159:0:ps2:ps2:8/12/7:1 240 0 138 0 0 132 0 0 0 0 0 111 111 0
2 :0:root.ccio.bus_adapter.ps2:ps2:CLAIMED:INTERFACE:Built-in Keyboard/Mouse:0
pa:pa:F:F:F:-1:-1:4294967295:bc:bus_converter:10:88 7 8 76 0 0 11 80 0 0 0 0 0 0
0 0 :2:root.ccio:ccio:CLAIMED:BUS_NEXUS:I/O Adapter:2
pa:wsio:F:F:F:-1:229:4294967295:graphics:graph3:10/0:0 80 0 138 0 0 119 0 1 0 0
0 109 229 0 2 :0:root.ccio.graph3:graph3:CLAIMED:INTERFACE:Graphics:0
pa:core:F:F:F:-1:-1:4294967295:ba:core_adapter:10/20:1 240 0 11 0 0 142 0 0 0 0
0 0 0 0 0 :1:root.ccio.bus_adapter:bus_adapter:CLAIMED:BUS_NEXUS:Core I/O
Adapter:1
core:wsio:F:T:F:-1:24:0:hil:hil:10/20/1:1 240 0 138 0 0 115 0 0 0 0 0 129 108 0
2 :0:root.ccio.bus_adapter.hil:hil:CLAIMED:INTERFACE:Built-in HIL:0
core:wsio:F:T:F:-1:1:65536:tty:asio0:10/20/2:0 64 0 138 0 0 140 128 0 0 0 0 102
217 0 2 :1:root.ccio.bus_adapter.asio0:asio0:CLAIMED:INTERFACE:Built-in
RS-232C:1
core:eisa:F:F:F:-1:-1:4294967295:ba:eisa_adapter:10/20/5:1 240 0 11 0 0 144 0 0
0 0 0 0 0 0 0 :2:root.ccio.bus_adapter.eisa:eisa:CLAIMED:BUS_NEXUS:EISA Bus
Adapter:2
pa:pa:F:F:F:-1:-1:4294967295:processor:processor:32:88 80 0 0 0 0 4 145 0 0 0 0
0 0 0 0 :0:root.processor:processor:CLAIMED:PROCESSOR:Processor:0
pa:pa:F:F:F:-1:-1:4294967295:memory:memory:49:4 144 26 1 0 0 9 0 0 0 0 0 0 0 0 0
:0:root.memory:memory:CLAIMED:MEMORY:Memory:0

-- 
Carl Johnson

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From: Jason Eckhardt <jason@equator.com>
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To: hppa-linux@thepuffingroup.com
Subject: [hppa-linux] Bootstrap #3 successful
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I'm happy to report that bootstrap #3 passed for everyone who reported back
thus far, thanks for taking the time to help out. Network, disk, and even
ZIP drive boots worked. I'd like to see a CD-ROM test if someone has a
CDR drive available.

1) 780/C160       (disk)
2) 715/64         (BOOTP)
3) 816/E35        (disk)
4) 712/100        (disk)
5) 712/100        (SCSI ZIP drive!)
6) 715/33         (RBOOTD) 
7) 715/80         (?disk?)

This means that we now have a simple but functional bootstrap. We are ready
to load a real kernel instead of a dummy one!

Phil Schwan is helping to solve the ftp problems and I will be uploading
the latest working boot sources. I've also added GPL license stubs to
each source file, a mildly detailed README, etc.

Regards,
Jason Eckhardt.

-------------------------------------------------------------------------
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From - Thu Nov 08 21:11:22 2018
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From: Sandy Harris <sandy@storm.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Parallel port hardware (fwd)
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"Bill Katz (William)" wrote:

> Sandy Harris wrote:
> |Can anyone point me to info on the electrical properties of the parallel ports
> |on 712 or 715 machines?
> |
> |I'm thinking that 8 715s might make an interesting parallel engine, but the cable device
> |only works if the parallel port's control lines are implemented as open collector TTL.
> |Where can I discover whether they are?
> 
> Early 715s ...
> 
> Later 715s (/64, /80, /100) and all 712s use Lasi.  From the chip ERS
> (not published, it's mostly electrical stuff) Data strobe, autofeed,
> parinit, and select
> 
> The ones that connect to pins 1, 14, 16, and 17 are open collector.

Bingo! Those are exactly the four lines used for the Wapers parallel stuff.

http://garage.ecn.purdue.edu/~papers/WAPERS/


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On Sun, 28 Nov 1999, Carl Johnson wrote:

> Earlier I saw a message posted about adding machines and their
> descriptions to the puffin site, so I went to do that and 
> when I follow the instructions, etc, etc the addmachine.php3
> kicks out an error, which is embedded and does not show up,
> of:
> 
> 	The IOSCAN output is not in the correct format. Please try
> 	that again. Exiting a  that is not open
> 
> anyhow I am including all the needed info and if someone can finger
> out my problem please tell me:  __TIA__

Ok, I added the machine.

It appears my script wasn't working with blank lines correctly.  I
have made a small fix to allow blank lines.  My script uses a _VERY_
rudamentary check to see if each line of the IOSCAN output is correct.
If it finds one line that isn't correct is complains.  

Thanks for the bug report.  Please let me know if you find anything
else wrong.

-- 
David Kennedy
The Puffin Group


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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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Xref: news.gmane.org gmane.linux.ports.parisc:6536

> I built another kernel without IPC.  In this one, the kernel panic'd
> in get_unused_buffer_head.  This one occured because unused_list was
> zero.  Again, it looks like there is an initialization problem somewhere.
> I think others have reported this problem in the past.  It looks like:
> 
> bad address 0000001c (code 15)
> Kernel panic: bad address

I have found the cause of this panic.  The problem occurs when xchg
is called with a pointer which is not aligned on a 16 byte boundary.
The ldcws semaphore instruction is only defined when the address is
aligned on a 16 byte boundary.  It is used when the value to exchange
is 0.

The macro xchg is used in quite a few places in what is nominally
machine independent code.  Should we add __attribute__ ((aligned (16))
to the definitions of all variables which exchange with 0?  Or, should
we look for another solution?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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Xref: news.gmane.org gmane.linux.ports.parisc:6537

> The macro xchg is used in quite a few places in what is nominally
> machine independent code.  Should we add __attribute__ ((aligned (16))
> to the definitions of all variables which exchange with 0?  Or, should
> we look for another solution?

xchg() is defined to work for a range of types and sizes. It is up to the 
arch code to implement it. That may mean you need to use a spinlock to implementsome cases.

Alan


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Subject: Re: [parisc-linux] Progress - Update
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> I have found the cause of this panic.  The problem occurs when xchg
> is called with a pointer which is not aligned on a 16 byte boundary.
> The ldcws semaphore instruction is only defined when the address is
> aligned on a 16 byte boundary.  It is used when the value to exchange
> is 0.

> The macro xchg is used in quite a few places in what is nominally
> machine independent code.  Should we add __attribute__ ((aligned (16))
> to the definitions of all variables which exchange with 0?  Or, should
> we look for another solution?

The problem with all this is xchg needs to be atomic, so there is no easy
and obviously correct way to do it.  Probably the most feasible thing is
to use spin_lock_irqsave / spin_unlock_irqrestore on an array of spinlocks
indexed by a hash of the address - x86istic code expecting xchg() to be
fast is going to suck I'd guess.

	Philipp Rumpf


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Xref: news.gmane.org gmane.linux.ports.parisc:6539

> to use spin_lock_irqsave / spin_unlock_irqrestore on an array of spinlocks
> indexed by a hash of the address - x86istic code expecting xchg() to be
> fast is going to suck I'd guess.

You can catch the suitably aligned case. I don't think anyone will have a problem
if you submit patches over time so that critical xchg()'d objects are 16byte
aligned where it doesnt impact other platforms.

Keep counters of aligned/unaligned


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At 07:31 PM 11/30/99 +0000, Alan Cox wrote:


> > to use spin_lock_irqsave / spin_unlock_irqrestore on an array of spinlocks
> > indexed by a hash of the address - x86istic code expecting xchg() to be
> > fast is going to suck I'd guess.
>
>You can catch the suitably aligned case. I don't think anyone will have a 
>problem
>if you submit patches over time so that critical xchg()'d objects are 16byte
>aligned where it doesnt impact other platforms.

You also have another option:

Create the xchg more as a "compare and swap" and separate the semaphore(s) from
the data. You can always keep the semaphores paragraph aligned and not worry
about where the data falls. Here's a sample of something I've used successfully
for many years:

;
;    function CompareSwap(var Semaphore   : integer;
;                             CellAddress : localanyptr;
;                             OldValue    : integer;
;                             NewValue    : integer) : integer;
;
;
; Local Register Use Declarations
;
Semaphore     .EQU    arg0
CellAddress   .EQU    arg1
OldValue      .EQU    arg2
NewValue      .EQU    arg3
;
; Pause Time Declaration
;
PauseTime     .EQU    0x3f4cc800


compareswap           .proc

         .export compareswap, entry
         .import PAUSE,code

         ldw     0(0,CellAddress),r20   ; dummy load to avoid page fault
         ldcws   0(0,Semaphore),ret0    ; load & clear shared memory
         ldw     0(0,CellAddress),r20   ; load contents of Cell into reg20
         comibf,=,n  1,ret0,spin        ; if sem. locked, go to sleep
         combf,=,n  r20,OldValue,noteq  ; go to noteq if Cell <> OldValue
         stw     NewValue,0(0,CellAddress) ; save new value into cell
         bv      r0(rp)                 ; return from whence we came
         stw     ret0,0(0,Semaphore)    ; reset semaphore to avail
noteq                                  ; the case of Cell <> OldValue
         stw     ret0,0(0,Semaphore)    ; reset semaphore to avail
         bv      r0(rp)                 ; return from whence we came
         or      r0,r0,ret0             ; return false

spin
         ldi     -50,r19                ; Initialize counter
         ldw     0(0,Semaphore),r31     ; Prime the pump
spinagain
         comibt,=   1,r31,compareswap   ; If so, do it again
         ldw     0(0,Semaphore),r31     ; Load Semaphore again
         addibt,<=,n 1,r19,spinagain    ; Try again if needed.
         nop

wait
         stw     rp,-20(sp)             ; .ENTER
         ldo     56(sp),sp              ; .ENTER
         stw     arg0, -92(0,sp)        ; save var Semaphore
         stw     arg1, -96(0,sp)        ; save CellAddress
         stw     arg2,-100(0,sp)        ; save OldValue
         stw     arg3,-104(0,sp)        ; save NewValue

;   prepare to call PAUSE
         ldil    L'PauseTime,r1         ; build sleep time value
         ldo     R'PauseTime(r1),r31
         stw     r31,-52(0,sp);         ; save it
         ldo     -52(sp),arg0           ; fetch address of time value

         ldil    L'PAUSE,r31            ; construct link to PAUSE
         .CALL
         ble     R'PAUSE(sr4,r31);      ; sleep
         COPY    r31,r2                 ; set return address

         ldw      -92(0,sp),arg0        ; restore var Semaphore
         ldw      -96(0,sp),arg1        ; restore CellAddress
         ldw     -100(0,sp),arg2        ; restore OldValue
         ldw     -104(0,sp),arg3        ; restore NewValue
         ldw     -76(sp),rp             ; restore return pointer
         b       compareswap            ; try lock the semaphore again
         ldo     -56(sp),sp             ; pop stack ptr back to previous one

         nop
         nop
         nop

         .callinfo     caller, save_rp
         .exit
         .procend


--
Mark Klein                                    DIS International, Ltd.
http://www.dis.com                            415-892-8400
PGP Public Key Available
--


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Xref: news.gmane.org gmane.linux.ports.parisc:6541

> 
> At 07:31 PM 11/30/99 +0000, Alan Cox wrote:
> 
> 
> > > to use spin_lock_irqsave / spin_unlock_irqrestore on an array of spinlocks
> > > indexed by a hash of the address - x86istic code expecting xchg() to be
> > > fast is going to suck I'd guess.
> >
> >You can catch the suitably aligned case. I don't think anyone will have a 
> >problem
> >if you submit patches over time so that critical xchg()'d objects are 16byte
> >aligned where it doesnt impact other platforms.
> 
> You also have another option:
> 
> Create the xchg more as a "compare and swap" and separate the semaphore(s) from
> the data. You can always keep the semaphores paragraph aligned and not worry
> about where the data falls. Here's a sample of something I've used successfully
> for many years:

[deleted]

Since the exchange operation is not allowed to fail, using an exchange
semaphore to guarantee that the operation is atomic could result in deadlock
if xchg is called from an interrupt service routine.  Thus, it appears
that we are stuck with using spin_lock_irqsave / spin_unlock_irqrestore.
Exchange with 0 can be done with ldcws if the pointer is aligned on
a 16 bye boundary.  For the present, it is probably best to just use
spin_lock_irqsave / spin_unlock_irqrestore.

Currently, the lock variable used in xchg is static and ignored by
spin_lock_irqsave / spin_unlock_irqrestore.  This will have to change
for SMP.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> [deleted]
> 
> Since the exchange operation is not allowed to fail, using an exchange
> semaphore to guarantee that the operation is atomic could result in deadlock
> if xchg is called from an interrupt service routine.  Thus, it appears
> that we are stuck with using spin_lock_irqsave / spin_unlock_irqrestore.
> Exchange with 0 can be done with ldcws if the pointer is aligned on
> a 16 bye boundary.  For the present, it is probably best to just use
> spin_lock_irqsave / spin_unlock_irqrestore.
> 
> Currently, the lock variable used in xchg is static and ignored by
> spin_lock_irqsave / spin_unlock_irqrestore.  This will have to change
> for SMP.

We don't have SMP versions of spin_lock/spin_unlock yet.  (And it doesn't make
sense to write them for 2.2 just to rewrite them for 2.3 lateron).

Furthermore we have to care for cases like:

	var = 1;
x=0;
CPU0		CPU1
xchg(&var,x);	test_and_set_bit(0, &var);

Which means we have to always use the same spinlock for all atomic operations[1]
done to an integer - so either a global lock or an array of spinlocks (if the
one global lock strategy shows this spinlock as a major contention point).

IMHO we really should do the 2.3 merge first.

	Philipp Rumpf

[1] - spinlock_t, rwlock_t and atomic_t are special as no-one is going to do
any operations but the ones in spinlock.h / atomic.h on those.


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Xref: news.gmane.org gmane.linux.ports.parisc:6543

> 
> Furthermore we have to care for cases like:
> 
> 	var = 1;
> x=0;
> CPU0		CPU1
> xchg(&var,x);	test_and_set_bit(0, &var);

Umm. Does anyone actually rely on that ? Im not sure the non x86 ports have
that property

> IMHO we really should do the 2.3 merge first.

Yep

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Hi all,

Here is my experience with the last bootloader. I tried it on an HP 710:

Select from menu: b scsi.5
Trying scsi.5
Boot path initialized
Attempting to load IPL

Hard booted
-----------------------------------------
PARISC/Linux Bootstrap Version 0.1 (non-interactive)
By Jason Eckhardt
Built Tue Mar 9 16:40:43 CST 1999 by jason@bimbo

Reading parameters.. done
Size = 28672 bytes, entry = 0x00001000, location 0x0001B040
Loading kernel.. done.
Transferring control to kernel.

********************
VMLINUX 0.0: Dummy kernel image loaded and executing!

It is now safe to reboot.

It is now safe to reboot.

It is now safe to reboot.

It is now safe to reboot.

It is now safe to reboot.

It is now safe to reboot.
/





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Alan Cox wrote:
> > IMHO we really should do the 2.3 merge first.
> Yep

So when do people think we should do that merge?

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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> 
> > 
> > Furthermore we have to care for cases like:
> > 
> > 	var = 1;
> > x=0;
> > CPU0		CPU1
> > xchg(&var,x);	test_and_set_bit(0, &var);
> 
> Umm. Does anyone actually rely on that ? Im not sure the non x86 ports have
> that property

Also, we may need to flush the cache line for &var.  The coding in buffer.c
which caused the original panic in xchg looks dubiousin this regoard:

        /* Update the reuse list */
		tail->b_next_free = xchg(&reuse_list, NULL);
		reuse_list = bh;


-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Alan Cox wrote:
> > > IMHO we really should do the 2.3 merge first.
> > Yep
> 
> So when do people think we should do that merge?

2.3.29 is probably a good candidate for this. Its reasonably solid and has
all the relevant stuff that we need to update to handle. 2.3.30pre looks a bit
shaky right now and chasing pre releases wouldnt be fun


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"John David Anglin" wrote:
...
> Also, we may need to flush the cache line for &var.  The coding in buffer.c
> which caused the original panic in xchg looks dubiousin this regoard:
> 
>         /* Update the reuse list */
> 		tail->b_next_free = xchg(&reuse_list, NULL);
> 		reuse_list = bh;

If this data struct is only touched by processors, they are coherent
and flushing is not needed. (Except VM aliases...but I have to ignore
this case due to my ignorance).  If any driver DMAs this data and the
platform is I/O coherent (ie has ccio, epic or sba driver), processor
doesn't need to flush either. Processor should only need to flush on
*any* (SMP or not) platform which is not I/O coherent (assume the page
is mapped cacheable).

grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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> Also, we may need to flush the cache line for &var.  The coding in buffer.c
> which caused the original panic in xchg looks dubiousin this regoard:
> 
>         /* Update the reuse list */
> 		tail->b_next_free = xchg(&reuse_list, NULL);
> 		reuse_list = bh;

spin lock and atomic ops are expected to be write barriers across all
CPUs


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> So when do people think we should do that merge?

I actually just got 2.3.29 to build (not work, but I'm sure it shouldn't take too
long to do that) with the parisc changes hacked in.

I think within the next few days I should have a kernel tree that works as much
as our current tree does, but is based on 2.3.

The other issue is when we want the CVS tree to be moved to 2.3.  This mainly
depends on whether people have large uncommitted patch sets that they would
like to finish / commit as long as they at least have an idea how the kernel
behaves without the patch.

So, anyone ?

	Philipp Rumpf


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From: Carl Johnson <cjs@mcn.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Booting on J200
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I have built my own kernels and modified them some, but have also
used the prebuilt kernels, I have had no success figuring out
what hangs the kernel but anyhow, I will tell of my testing
of the 1999-10-19 and 1999-11-13. And Hopefully I will
recieve some help, _TIA_

--
1999-10-19: Hangs at transfering control to kernel

--
1999-11-13: Hnags after:

Transfering control to kernel. (At entry point 0x00010000)
kernel(0x00148C80, 0x00504010, 0x00148C80, 0x00016640)
Clear BSS 0x0011B048 --> 0x0013D384
Boot Loader: PA/Linux, maybe PALO
real_mode setup exiting

--
1999-11-17 CVS snapshot with some of my own modif. to try to solve
the hanging at real_mode.

__Will not build__

-- 
Carl Johnson


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From: Paul Bame <bame@debian.fc.hp.com>
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--------

If you touch Linux code which works in real addressing mode
(initial setup, interrupts before VM is enabled, PDC/IODC) please
read 'Embedded Real-Mode Executable in vmlinux'
at http://puffin.external.hp.com/~bame/ee.html
I have this working based on an old-ish set of code and
need to update it (maybe after the 2.3 merge).  IF YOU HAVE OBJECTIONS
or QUESTIONS please raise them soon.

I have attached the plusses and minuses part of the document here,
but it may not make sense out of context (or in context either :-)).

Thanks
	-Paul Bame

Good Qualities

   * Code which runs in real mode is quite separate from code which runs in
     virtual mode. One cannot by accident mix real/virtual code or data.
     This should improve maintainability and reduce surprises.
   * Real-mode code for setup, interrupt handling(*), and firmware
     (PDC/IODC) access, may be written in C, with no suprise failures caused
     by the whims of the C compiler and linker. This should improve
     maintainability too, and using C should make this code more accessable
     to non-assembly code wranglers.
     (*)Nitpicker note: the interrupt vector table will still probably be
     written in assembly, but the code it calls can be C.
   * Certain interrupt handlers may be best implemented in real mode (TLB
     miss?), and this provides an obvious place and method to do so (though
     needed access to the kernel page tables may recommend a virtual-mode
     TLB miss handler).
   * It is probably possible to eliminate some of the currently duplicated
     PDC code.
   * The scheme is independent of the address at which we relocate vmlinux.
     This is important since there are folks who want to relocate it to
     0xC000-0000, 0x8000-0000, and 0x0001-0000.

Bad Qualitites

   * It's different. Today's kernel coders will not be familiar with this
     scheme.
   * Much of the code available to the virtual kernel, such as printk,
     memcpy, and other common functions, is not available in real land
     unless it is copied. This may seem pretty bad, but we're already
     copying code under our current scheme (e.g., real/vsprintf.c) because
     of the limitations of PC-relative branches.
   * The vmlinux file is larger, since the real-mode BSS segment is fully
     expanded in realmode.S.
   * More thought/design is required when writing code which has both real
     and virtual portions. This is probably a benefit in disguise, but it
     may cause frustration during the turn-on period.
   * The convert program must be updated when we switch to ELF. Since the
     boot loader and the implementation of exec() will need to do the same,
     I don't consider this a big deal.
   * Once we convert to the embedded executable scheme, it will be
     inconvenient to go back, because it will entail small but widespread
     changes. This could be mitigated by using a CVS branch (and tag)
     perhaps.
   * The compiler's millicode library is duplicated.


From - Thu Nov 08 21:11:23 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] /usr/conf/machine header files
Date: Thu, 2 Dec 1999 16:47:23 -0800 (PST)
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Xref: news.gmane.org gmane.linux.ports.parisc:6552

Hi all,
This started with the search for IODC return data. IODC data is
"documented" in the header file /usr/conf/machine/cpu.h. This is
on both 10.20 and 11.00 HP-UX.  Look for real_IODC_data. And remember
the bit fields are allocated from "left to right" (MSB is bit 0).


This directory seems to be a gold mine of information about hardware.
I happened to look into /usr/conf/machine/save_state.h and found:
 *      There are three kinds of PA-RISC computer:
 *
 *      PA-RISC 1.0 (sometimes called PA83)
 *              32-bit integer registers with 16 64-bit floating point
 *              registers.  No Series 700 is a PA 1.0 machine and only a
 *              few models of the oldest Series 600 and 800 machines are
 *              PA 1.0.
...

Anyone interested in context switching though might find this
*very* interesting reading...Other interesting files are:

   File     Example
   -------- ----------------
   boot.h   /* Parameters exchanged between kernel loader and the kernel    */
   cpu.h    real_IODC_data and Module type numbers
   eeprom.h eg MIRAGE_EEPROM_BASE_ADDR is defined here
   eisa.h   Sversion for snakes/WAX EISA and EISA system board ids
   frame.h  Assembly Language Offsets for Argument or Stack Pointer
...


Happy Hunting!

grant


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From: Carl Johnson <cjs@mcn.net>
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Subject: Re: [parisc-linux] Booting on J200
Date: Thu, 02 Dec 1999 20:50:53 -0100
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Thanks Helge:

I never said I looked at the obvious first! Poor planning/thinking
on my part. I did however about 2 secs before reading your post
did recompile a FRESH ("VIRGIN") source and did manipulate
the command line and get it to give me a Pengiun powered PA
with a shell!

Thanks Anyhow!

Helge Deller wrote:
> 
> Am Wed, 01 Dec 1999 schrieb Carl Johnson:
> > I have built my own kernels and modified them some, but have also
> > used the prebuilt kernels, I have had no success figuring out
> > what hangs the kernel but anyhow, I will tell of my testing
> > of the 1999-10-19 and 1999-11-13. And Hopefully I will
> > recieve some help, _TIA_
> >
> > --
> > 1999-10-19: Hangs at transfering control to kernel
> >
> > --
> > 1999-11-13: Hnags after:
> >
> > Transfering control to kernel. (At entry point 0x00010000)
> > kernel(0x00148C80, 0x00504010, 0x00148C80, 0x00016640)
> > Clear BSS 0x0011B048 --> 0x0013D384
> > Boot Loader: PA/Linux, maybe PALO
> > real_mode setup exiting
> >
> 
> Hello Carl,
> 
> Are you shure, that the outputs doesnt go to the first COM-Port as default (in
> which case you would never see something more on the screen)...
> 
> Check /arch/parisc/boot/boot_code/ipl_c.c and search for " console=ttyS0 " ...
> You would have to modify this (console=tty0)  ** OR **  start the machine with
> "boot pri isl" and modify the command-line.
> 
> Helge Deller.

-- 
Carl Johnson

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Hello,
	If someone can send me directions on how to make a bootable cdrom from a
windows based cdr drive, I can test booting a 712/60 off a cd.

				Tom

-----Original Message-----
From: Jason Eckhardt [mailto:jason@equator.com]
Sent: Wednesday, March 10, 1999 12:12 PM
To: hppa-linux@thepuffingroup.com
Subject: [hppa-linux] Bootstrap #3 successful



I'm happy to report that bootstrap #3 passed for everyone who reported back
thus far, thanks for taking the time to help out. Network, disk, and even
ZIP drive boots worked. I'd like to see a CD-ROM test if someone has a
CDR drive available.

1) 780/C160       (disk)
2) 715/64         (BOOTP)
3) 816/E35        (disk)
4) 712/100        (disk)
5) 712/100        (SCSI ZIP drive!)
6) 715/33         (RBOOTD)
7) 715/80         (?disk?)

This means that we now have a simple but functional bootstrap. We are ready
to load a real kernel instead of a dummy one!

Phil Schwan is helping to solve the ftp problems and I will be uploading
the latest working boot sources. I've also added GPL license stubs to
each source file, a mildly detailed README, etc.

Regards,
Jason Eckhardt.

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From - Thu Nov 08 21:11:23 2018
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From: Frank Rowand <frowand@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] bad news, good news, unkown (Temp CR used as permanent storage)
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Philipp kindly documented the Control Register usage a while ago...

> register  today           soon
> CR24      unused          what CR26 is today (I thought CR2[45] were readable
> CR25      unused          what CR25 is today  from userspace. stupid prumpf)
> CR26      used in head.S  unused
> CR27      used in head.S  unused
> CR28      temporary usage in interruption handlers [GR1  saved here]
> CR29      temporary usage in interruption handlers [arg0 (for the interruption
>                   handler, NOT GR26) saved here]
> CR30      current, 0 if in kernel mode (this might not work for syscalls yet)
> CR31      temporary usage in interruption handlers [GR29 saved here]


THE BAD NEWS

The bad news is that the PA-RISC architecture allows PDC to modify the
contents of the "Temporary" Control Registers, CR 24 - 31 (see "PA-RISC
1.1 Firmware Architecture Reference Specification: Processor Dependent
Code (PDC) Procedures" at
http://thepuffingroup.com/parisc/documentation.html, the table and
Note 5 on page 1-4).  If PDC does change the contents of these registers
then they cannot be used for permanent storage by the kernel unless the
kernel saves the registers before calling PDC and restores them after
the return from PDC.


THE GOOD NEWS

I have started the process of changing the architecture to require PDC
to preserve the state of the "Temporary" Control Registers.  So far,
there have been no objections to the change, but there is still some
time left for HP engineers to object (like if a current PDC implementation
violates the new architecture).  This means that implementations of
PDC for *future* machines should preserve the state of the Temporary
Control Registers.


THE UNKNOWN

Even if no one in HP objects to the new constraint on PDC, there is no
guarantee that existing PDC doesn't modify the Temporary Control
Registers.  No one is checking all the PDC implementations that have
ever shipped to ensure that they meet the new restriction.

However, there is a chance that existing PDC does not modify the
Temporary Control Registers, based on conversations with some
relevent engineers, and some theorizing.

(Of course, the obvious exception is that the Temporary Control
Registers are undefined when the kernel's HPMC handler is called.)

HP-UX does use some Temporary Control Registers for permanent
storage.  It saves the values of these registers before calling
PDC, and restores them when PDC returns.  I would recommend that
Linux follow this practice.


-Frank


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On the subject of things possibly getting clobbered in PDC/IODC calls,
I think the variable real_routine can get clobbered since it is used
for more than one type of call.

The good news is that I have made some improvement to the PDC/IODC
console.  I have eliminated the double lines, and when the IODC console
is configured, the system can now successfully print all stored
messages and open /dev/console.  However, in making changes to iodccon.c,
I realized that the IODC console is a really bad video console since you
can't do cursor addressing.  I think it would better to use the serial
driver.

Thoughts?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] PA-RISC/Linux Weekly News - December 3, 1999
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============================================
PA-RISC/Linux Weekly News - December 3, 1999
============================================
  http://www.thepuffingroup.com/parisc/
  vol 1, iss 3

This Week:
   News & Announcements
   This Week's CVS Activity
   State of the Port Summary


====================
News & Announcements
====================

----------------------------
The Quest for PA 2.0 Support
----------------------------
After months of valiant programming efforts from developers around the
globe, Philip Rumpf has started the implementation of a virtual memorty
management system that should work on PA2.0 processors.  This should
enable development of PA2.0 IO infrastructure from noble developers such
as Sir Grant G Grundler and The Imperial Philip Schwan.

-----------
New Puffin!
-----------
Mr. Chris Beard and Mrs. Alex deVries are pleased to announce the
hatching of a new puffling: Matthew Richard Wilcox, weighing in at 85kg.
Mother and child are doing well, in spite of the unusual size of the
newly hatched puffball.

Matthew, once weaned, will be working primarily on PA-RISC/Linux
development efforts, in the Ottawa Ontario puffin burrow (aka: Burrow
#1).

-----------------------
Bremen mini-Puffin-Fest
-----------------------
A miniature Puffin-Fest broke out at the Bremen LinuxTag, featuring such
notable hackers as Alan Cox, Matthew Wilcox, Philipp Rumpf, Martin
Petersen, and Martin Schulze.  A 715/33 was transferred to Philipp, and
some surreptitious hacking occurred behind one of the booths on the show
floor.

-------------------------
PA-RISC Hardware Database
-------------------------

The PA-RISC database is being filled up with machine descriptions.
However, more descriptions are needed.  Please go to
http://www.thepuffingroup.com/parisc/hw.html and add your machines to
the database.  There are more improvements to the database that will
be made soon.  The goal of the PA-RISC database is to catalogue the
different possible machine configurations and the hardware that they
contain.  This information will be used to determine if a specific
machine is supported with Linux and what device drivers are needed.

========================
This Week's CVS Activity
========================

Paul Bame has fixed some problems with memcpy in real mode.

Philipp Rumpf has replaced the block TLB handler with a basic TLB insert
handler.

Philipp has also rearranged some of the real mode handling.

=========================
State of the Port Summary
=========================

Kernel:
     based on 2.2.13

Supported Machines:
     most of the A180c, parts of 712 Gecko and 715 workstations

Supported Hardware:
     SCSI, Lan and PS/2 on Lasi I/O controller, Dino PCI
     Tulip ethernet

Project Page:
     http://www.thepuffingroup.com/parisc/

Latest Workable Image:
     ftp://puffin.external.hp.com/pub/parisc/linux-2.2.13.gz

Running PA-RISC/Linux HOWTO:
     http://thepuffingroup.com/parisc/recipe.html

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Paul Bame <bame@debian.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] a pretty big change
Date: Fri, 03 Dec 1999 17:20:10 -0700
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I just committed the changes to embed real-mode code in a separate
executable inside vmlinux.  It should cause no functional changes
in theory.  Read all about it in arch/parisc/real/README and
ee.html.  If you have terrible new problems,
I've attached a list of CVS commands to check out the files before I
started hacking on them.  I haven't seen a shell prompt from this
set of hacks so beware...

	-Paul Bame

prumpf- I moved kernel_thread and friends from
	real/<something> to kernel/head.S  I also re-enabled BTLB in
	real/setup.c so I could get further in the boot.  Left some
	debugging printks in the handle_real_interrupt handler too.

cvs update -r1.25 arch/parisc/Makefile
	cvs update -A arch/parisc/Makefile
cvs update -r1.28 arch/parisc/kernel/Makefile
	cvs update -A arch/parisc/kernel/Makefile
cvs update -r1.35 arch/parisc/kernel/head.S
	cvs update -A arch/parisc/kernel/head.S
cvs update -r1.39 arch/parisc/kernel/irq.c
	cvs update -A arch/parisc/kernel/irq.c
cvs update -r1.14 arch/parisc/kernel/pdc.c
	cvs update -A arch/parisc/kernel/pdc.c
cvs update -r1.25 arch/parisc/kernel/pdc_cons.c
	cvs update -A arch/parisc/kernel/pdc_cons.c
cvs update -r1.73 arch/parisc/kernel/setup.c
	cvs update -A arch/parisc/kernel/setup.c
cvs update -r1.11 arch/parisc/kernel/traps.c
	cvs update -A arch/parisc/kernel/traps.c
cvs update -r1.2 arch/parisc/real/Makefile
	cvs update -A arch/parisc/real/Makefile
cvs update -r1.2 arch/parisc/real/head.S
	cvs update -A arch/parisc/real/head.S
cvs update -r1.2 arch/parisc/real/interruption.S
	cvs update -A arch/parisc/real/interruption.S
cvs update -r1.2 arch/parisc/real/lib.c
	cvs update -A arch/parisc/real/lib.c
cvs update -r1.2 arch/parisc/real/pdc.c
	cvs update -A arch/parisc/real/pdc.c
cvs update -r1.2 arch/parisc/real/real.h
	cvs update -A arch/parisc/real/real.h
cvs update -r1.2 arch/parisc/real/real_s.S
	cvs update -A arch/parisc/real/real_s.S
cvs update -r1.2 arch/parisc/real/setup.c
	cvs update -A arch/parisc/real/setup.c
cvs update -r1.1 arch/parisc/real/traps.c
	cvs update -A arch/parisc/real/traps.c
cvs update -r1.1 include/asm-parisc/real.h
	cvs update -A include/asm-parisc/real.h


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Bad failures occur (for me) with the hpux boot loader.  I have no
idea whether I introduced them, but I might have.  It looks
like the first instruction of vmlinux doesn't even get executed,
so probably something in the SOM header is telling the hpux boot loader to
do something stupid.  som_relocate may need an upgrade, but I'm
stumped about what's going wrong.

	-P


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I read ee.html this evening.  Having already tracked down one problem
where the real-mode code went off into never-never land when I tried to
print out a string, I agree that separate comilation, linking and conversion
is a good idea.  The size of real-mode code is limited with our current
scheme.  Thus, we may reach the point where it is impossible to link
all real-mode code.

Regarding your example, the problem is that a function address is a PLABEL.
PLABELs are stored in the text space.  I think the problem can be avoided
if the function address is put into a structure which is stored in the
data space.

> I just committed the changes to embed real-mode code in a separate
> executable inside vmlinux.  It should cause no functional changes
> in theory.  Read all about it in arch/parisc/real/README and
> ee.html.  If you have terrible new problems,
> I've attached a list of CVS commands to check out the files before I
> started hacking on them.  I haven't seen a shell prompt from this
> set of hacks so beware...
> 
> 	-Paul Bame
> 
> prumpf- I moved kernel_thread and friends from
> 	real/<something> to kernel/head.S  I also re-enabled BTLB in
> 	real/setup.c so I could get further in the boot.  Left some
> 	debugging printks in the handle_real_interrupt handler too.
> 
> cvs update -r1.25 arch/parisc/Makefile
> 	cvs update -A arch/parisc/Makefile
> cvs update -r1.28 arch/parisc/kernel/Makefile
> 	cvs update -A arch/parisc/kernel/Makefile
> cvs update -r1.35 arch/parisc/kernel/head.S
> 	cvs update -A arch/parisc/kernel/head.S
> cvs update -r1.39 arch/parisc/kernel/irq.c
> 	cvs update -A arch/parisc/kernel/irq.c
> cvs update -r1.14 arch/parisc/kernel/pdc.c
> 	cvs update -A arch/parisc/kernel/pdc.c
> cvs update -r1.25 arch/parisc/kernel/pdc_cons.c
> 	cvs update -A arch/parisc/kernel/pdc_cons.c
> cvs update -r1.73 arch/parisc/kernel/setup.c
> 	cvs update -A arch/parisc/kernel/setup.c
> cvs update -r1.11 arch/parisc/kernel/traps.c
> 	cvs update -A arch/parisc/kernel/traps.c
> cvs update -r1.2 arch/parisc/real/Makefile
> 	cvs update -A arch/parisc/real/Makefile
> cvs update -r1.2 arch/parisc/real/head.S
> 	cvs update -A arch/parisc/real/head.S
> cvs update -r1.2 arch/parisc/real/interruption.S
> 	cvs update -A arch/parisc/real/interruption.S
> cvs update -r1.2 arch/parisc/real/lib.c
> 	cvs update -A arch/parisc/real/lib.c
> cvs update -r1.2 arch/parisc/real/pdc.c
> 	cvs update -A arch/parisc/real/pdc.c
> cvs update -r1.2 arch/parisc/real/real.h
> 	cvs update -A arch/parisc/real/real.h
> cvs update -r1.2 arch/parisc/real/real_s.S
> 	cvs update -A arch/parisc/real/real_s.S
> cvs update -r1.2 arch/parisc/real/setup.c
> 	cvs update -A arch/parisc/real/setup.c
> cvs update -r1.1 arch/parisc/real/traps.c
> 	cvs update -A arch/parisc/real/traps.c
> cvs update -r1.1 include/asm-parisc/real.h
> 	cvs update -A include/asm-parisc/real.h
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


From - Thu Nov 08 21:11:24 2018
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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] bad news, good news, unkown (Temp CR used as permanent storage)
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> The bad news is that the PA-RISC architecture allows PDC to modify the
> contents of the "Temporary" Control Registers, CR 24 - 31 (see "PA-RISC
> 1.1 Firmware Architecture Reference Specification: Processor Dependent
> Code (PDC) Procedures" at
> http://thepuffingroup.com/parisc/documentation.html, the table and
> Note 5 on page 1-4).  If PDC does change the contents of these registers
> then they cannot be used for permanent storage by the kernel unless the
> kernel saves the registers before calling PDC and restores them after
> the return from PDC.

Right, we should save/restore them.

> THE GOOD NEWS
> 
> I have started the process of changing the architecture to require PDC
> to preserve the state of the "Temporary" Control Registers.  So far,
> there have been no objections to the change, but there is still some
> time left for HP engineers to object (like if a current PDC implementation
> violates the new architecture).  This means that implementations of
> PDC for *future* machines should preserve the state of the Temporary
> Control Registers.

How much of the PDC code actually uses interruptions ?

> THE UNKNOWN
> 
> Even if no one in HP objects to the new constraint on PDC, there is no
> guarantee that existing PDC doesn't modify the Temporary Control
> Registers.  No one is checking all the PDC implementations that have
> ever shipped to ensure that they meet the new restriction.
> 
> However, there is a chance that existing PDC does not modify the
> Temporary Control Registers, based on conversations with some
> relevent engineers, and some theorizing.
> 
> (Of course, the obvious exception is that the Temporary Control
> Registers are undefined when the kernel's HPMC handler is called.)

How is that obvious ?  I would have expected the firmware HPMC handler
to use some sort of temporary storage in the 0xffffe000 - 0xffffffff
range (which can be accessed using an immediate offset and GR0), in
the debug registers or something similar (probably it could even use
undefined spots in page zero).

> HP-UX does use some Temporary Control Registers for permanent
> storage.  It saves the values of these registers before calling
> PDC, and restores them when PDC returns.  I would recommend that
> Linux follow this practice.

Agreed.


	Philipp Rumpf


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> On the subject of things possibly getting clobbered in PDC/IODC calls,
> I think the variable real_routine can get clobbered since it is used
> for more than one type of call.

Fixed by now.

> The good news is that I have made some improvement to the PDC/IODC
> console.  I have eliminated the double lines, 

How ?  There are quite a lot of ways to solve the two-consoles-which-are-
really-the-same problem, some of them just aren't very clean.  (Probably
the cleanest is to merge arch/parisc/kernel/pdc_cons.c and drivers/video/
iodccon.c into one file).

> and when the IODC console is configured, the system can now successfully
> print all stored messages and open /dev/console.

This was there before, wasn't it ?

> However, in making changes to iodccon.c, I realized that the IODC console
> is a really bad video console since you can't do cursor addressing.
> I think it would better to use the serial
> driver.

Sure it would, and I encourage everyone with a box using serial console to
clean up drivers/char/serial.c (it already should do everything you want,
it's just not clean) and use that.  The problem is there are boxes with
graphical consoles as well.

> Thoughts?

Where's the patch ;) ?


	Philipp Rumpf


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: [parisc-linux] Still trying to get to sash on 735
Date: Sat, 4 Dec 1999 19:45:57 -0500 (EST)
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The kernel hangs when it tries to run "init" on my 735.  The problem
occurs in create_som_tables at the first __put_user macro:

        __put_user((unsigned long) envp,++sp);

The values of envp and sp are 0x20000000 and 0x2000001c, respectively.

Any ideas?

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: Re: [parisc-linux] Still trying to get to sash on 735
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>         __put_user((unsigned long) envp,++sp);
> 
> The values of envp and sp are 0x20000000 and 0x2000001c, respectively.
> 
> Any ideas?

This is completely expected (our real-mode TLB insertion handler doesn't
handle anything but the 0xc000 0000 - 0xffff ffff range correctly) and will
be fixed soon.

	Philipp Rumpf

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From: "Mandachi, Dorin \(Omaha\)" <Dorin.Mandachi@cox.com>
To: "'hppa-linux@thepuffingroup.com'" <hppa-linux@thepuffingroup.com>
Subject: RE: [hppa-linux] Bootstrap #3 successful
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Also successfully booted a 715/100 from SCSI hd. 

Dorin Mandachi



-----Original Message-----
From: Jason Eckhardt [mailto:jason@equator.com]
Sent: Wednesday, March 10, 1999 11:12 AM
To: hppa-linux@thepuffingroup.com
Subject: [hppa-linux] Bootstrap #3 successful



I'm happy to report that bootstrap #3 passed for everyone who reported back
thus far, thanks for taking the time to help out. Network, disk, and even
ZIP drive boots worked. I'd like to see a CD-ROM test if someone has a
CDR drive available.

1) 780/C160       (disk)
2) 715/64         (BOOTP)
3) 816/E35        (disk)
4) 712/100        (disk)
5) 712/100        (SCSI ZIP drive!)
6) 715/33         (RBOOTD) 
7) 715/80         (?disk?)

This means that we now have a simple but functional bootstrap. We are ready
to load a real kernel instead of a dummy one!

Phil Schwan is helping to solve the ftp problems and I will be uploading
the latest working boot sources. I've also added GPL license stubs to
each source file, a mildly detailed README, etc.

Regards,
Jason Eckhardt.

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From - Thu Nov 08 21:11:24 2018
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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Subject: [parisc-linux] Linker problems
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Xref: news.gmane.org gmane.linux.ports.parisc:6564

Okay, it looks like HP/UX ld is behaving funny for some things in the 2.3
kernel.  Most notable fs/buffer.c, buffer_init:

Assembly source piped to gas:
	addil LR'hash_table-$global$,%r27
	copy %r1,%r12
	addil LR'bh_hash_shift-$global$,%r27
	copy %r1,%r10
	addil LR'zonelists-$global$,%r27
	comib,>>= 1,%r3,L$4451

Generated object file (objdump -d --reloc fs/buffer.o):
      84:   2b 60 00 00     addil 0,dp,%r1
                        84: R_DP_RELATIVE       hash_table
      88:   08 01 02 4c     copy r1,r12
      8c:   2b 60 00 00     addil 0,dp,%r1
                        8c: R_DP_RELATIVE       bh_hash_shift
      90:   08 01 02 4a     copy r1,r10
      94:   2b 60 00 00     addil 0,dp,%r1
                        94: R_DP_RELATIVE       zonelists
      98:   8c 62 80 30     cmpib,>>= 1,r3,b8 <buffer_init+0xb8>

vmlinux (objdump -d --reloc vmlinux):
c0063884:       2b 70 30 00     addil 21800,dp,%r1
c0063888:       08 01 02 4c     copy r1,r12
c006388c:       28 0f 70 00     addil 5f800,r0,%r1
c0063890:       08 01 02 4a     copy r1,r10
c0063894:       2b 77 50 00     addil 6e800,dp,%r1
c0063898:       8c 62 80 30     cmpib,>>= 1,r3,c00638b8 <buffer_init+0xb8>


Note that 
	addil LR'bh_hash_shift-$global$,%r27
	copy %r1,%r10

ultimately becomes addil 0x5f800, _r0_, %r1, which doesn't make sense (and
causes a DPF lateron).

I haven't found anything obvious that could explain it in the linker source,
but I haven't looked too closely at it.

Sorting this out is pretty much required to get 2.3 up (otoh, we're getting to
buffer_init which is relatively far (into the parts that have changed heavily)).

Any ideas ?


	Philipp Rumpf


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Subject: Re: [parisc-linux] /usr/conf/machine header files
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> This directory seems to be a gold mine of information about hardware.

One extremely interesting piece of information for those interested in the
PA2.0 port:  64-bit virtual addresses are 42 bits per quadrant only and
start at the smallest address in the quadrant - so unlike alpha where the
addresses are "sign-extended".

	Philipp Rumpf


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] txn_alloc_irq() change
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Hi parisc devotees,
I was working through Message Signalled Interrupt (aka TBIs) allocation
and realized our current txn_alloc_irq() implementation needs to accepted
at least one parameter. The parameter would indicate a (one of two)
capability of the caller's device. Returning a negative irq indicates
the host can't support the device because the host doesn't have a
compatible resource.

Here's the comment I added:
        /* Allocate processor IRQ
        ** The alloc_irq needs to accept a parameter to indicate how many
	** bits the irq data is restricted to use. This is a HW limitation
	** of the various consumers of Message Signalled Interrupts:
        ** Legacy PA I/O (GSC/NIO): 5 bits (architected EIM register)
        ** V-class (EPIC):          6 bits
	** N/L/...-class:           8 bits
        ** PCI 2.2 MSI:             16 bits (I think)
	** Existing PCI devices:    32-bits (NCR c720/ATM/GigE/HyperFabric)
        **
	** On the service provider side:
	** o PA 1.1 (and PA2.0 narrow mode)	5-bits (width of EIR register)
	** o PA 2.0 wide mode			6-bits
	** o other architectures?
	**
	** So a Legacy PA I/O device on a PA 2.0 box can't use all
	** the bits supported by the processor...and the N/L-class
	** I/O subsystem supports more bits than PA2.0 has. The first
	** case is the problem.
        */
        vi->vi_txn_irq = txn_alloc_irq(8);      /* number of bits */

        if (vi->vi_txn_irq < 0)
                panic("couldn't get TXN IRQ\n");

        /* enable_irq() will use txn_* to program IRdT (PAT only) */
        vi->vi_txn_addr = txn_alloc_addr(vi->vi_txn_irq);
        vi->vi_txn_data = txn_alloc_data(vi->vi_txn_irq);
	ASSERT(vi->vi_txn_data < 256);	/* matches 8 above */
...


In addition, I would like folks to tell me if we should add a second
parameter to indicate how "wide" the "txn_addr" can be. I had assumed
the width of a host processor pointer address but cards may not support
enough bits (ie 32-bit card won't work on system which wants 40-bit or
44-bit physical addr). AFAIK PA-Risc systems have processors aliased to
below 4GB physical address and thus it won't be an issue for our port.
But other architectures do support MSI and it seems easy to avoid
nasty surprizes later.

Thoughts?

thanks,
grant

ps. This module is mostly written (still a few compile problems) but
    won't be published until after the IA64-linux gets published.
    Sorry about that...


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HP parisc documents
Date: Mon, 06 Dec 1999 12:05:11 -0800
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To: "BENKE,FRANK \(contractor\)" <frank_benke@non-hp-germany-om4.om.hp.com>
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Frank,
Mike Balma forwarded your e-mail to me. I saw Mike's first reply
and he touched on the answer. I'd like to expand on that and share
it with the parisc-linux community.

"BENKE,FRANK (Non-HP-Germany,om4)" wrote:
...
 
> one issue which came to my attention is that communication through the
> puffin group , resp.  alex de vries works not quite optimal, and i was
> asked if there is another way to directly receive technical docsthrough
> hp - germany . is there a way ? ... since the german parisc developers
> feel quite uncomfortable.

The problem is not with TPG or Alex DeVries.

The problem is the technical docs where never written for public
consumption and not well maintained. Before publishing these documents,
it's in both HP's and parisc-linux developers interest both issues get
addressed. Below, I explain the general process of getting a document
published.


And later, Frank also wrote:

> 1.st The Communications Issue : well, several of the german developers
> complained about some difficulties, but if grant has the usual internal
> resources that should be right appropriate and I suppose the guys, having
> questions could ask him directly, if the process through the puffingroup
> takes to long. as far as i know grant is online within the linux.net
> anyway.

That's correct. Myself, Frank Rowand, Paul Bame, and others do take
questions and try to answer them. Heck, we even just post our opinions
without being asked (especially me ;^). Please post questions to parisc-linux
mailing list and generally they will get answered the same day by someone
or even several people. Several *very* knowledgable HP folks are watching
this list and I consider myself a "newbie" (after 6 years!) to that "group".


...
> according to my presence at several linux events, I was simply asked by
> some of the german pa-developers and since I'm not informed about hp's
> policy on that I simply want to understand the process. the problems I
> was told about, were that comunication through alex lack in efficiency
> and some people asume that alex is anxious about whatever. politics !


The problem is not politics - it's business. HP needs to make money.
And publishing docs won't generate revenue for the divisions which
"own" the documents. So it's up to volunteer efforts address both issues.

Here's the general process:
o locate the latest editable revision of the document. For stuff more
  than a one or two years old this can be a problem (eg ASP, WAX, Uturn).
o locate the editing tool (version X of interleaf) and convert it to
  a useful format (eg FrameMaker or whatever).
o remove references to engineers, Project names, etc.
o remove references to "Intellectual Property" (IP) HP doesn't own.
o remove IP which HP doesn't want published (eg trade secrets)
o correct known errors
o forward document to manager for review
o forward document to a company attorney for review. They will verify
  no IP or copyright infringement has occurred.
o publish pdf/postscript by forwarding it to TPG and they post it.
  (also look at devresource.hp.com)

Getting a manager and attorney to review documents best suited for
bedtime reading is like pulling teeth. And I'm not sure how they
get compensated for it. But they certainly aren't doing it in their
spare time. So this whole process takes several monthes before
The Puffin Group ever sees a document.

People will question why we don't publish techinical documents in their
current form if eveyone is unhappy about the process. The answer
is HP management *tolerates* the current process. HP will get a
severe "allergic reaction" to the first lawsuit resulting from
publishing documents for older products. Forget trying to publish
any documents without a "business case" to support the action
from that point on.

Lastly, check parisc-linux archives...most issues have come up at
one time or another. Things change and it may be worth raising
an issue (like this one) again. But knowing the background will improve
the quality of the dialog.

hope this helps,
grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Linker problems
Date: Mon, 6 Dec 1999 20:38:56 +0100
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To: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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I just verified that the problem exists with the linker as compiled from the
GPL'd source (which required some minor modifications to the CVS ld).

	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Linker problems
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> I just verified that the problem exists with the linker as compiled from the
> GPL'd source (which required some minor modifications to the CVS ld).

Here's the diff against fixups.c (including stuff I added to ignore
R_SHORT_PCREL_MODE which we get for some reason (that might be a gas
funny)).

diff -ur linker-cvs/fixups.c linker/fixups.c
--- linker-cvs/fixups.c	Mon Dec  6 20:21:23 1999
+++ linker/fixups.c	Mon Dec  6 20:27:03 1999
@@ -360,6 +360,10 @@
     /*  PA2.0 instructions */
     {   R_SHORT_PCREL_MODE,  1,   1,      NONE,   NONE,  NONE   },
     {   R_LONG_PCREL_MODE,   1,   1,      NONE,   NONE,  NONE   },
+#else
+	/* we seem to get R_SHORT_PCREL_MODE -- which I guess is the "do the
+	 * PA1.1 thing" one which would mean we can just ignore it.  prumpf */
+    {   R_SHORT_PCREL_MODE,  1,   1,      NONE,   NONE,  NONE   },
 #endif /* ifdef PA_2_0 */
     {   R_ABS_CALL        , 10,   2,      AR_D,   U_8,   NONE   },
     {   0                 ,  2,   3,      AR_9,   U_8,   NONE   },
@@ -1339,6 +1343,11 @@
 		GET_NO_ARGS;
 		is_pcrel_short = FALSE;
 		break;
+#else
+	    case R_SHORT_PCREL_MODE:
+		GET_NO_ARGS;
+		/* we just ignore R_SHORT_PCREL_MODE on PA1.1.  prumpf */
+		break;
 #endif /* ifdef PA_2_0 */
 
             /* zero length, clear overrides */
@@ -4342,9 +4351,9 @@
 
     switch (fix_info->type) {
 #ifdef PA_2_0
-	case R_SHORT_PCREL_MODE:
 	case  R_LONG_PCREL_MODE:
 #endif /* ifdef PA_2_0 */
+	case R_SHORT_PCREL_MODE:
         case R_BEGIN_BRTAB:
         case R_END_BRTAB:
         case R_FSEL:
@@ -5388,7 +5397,7 @@
 	        value = symbol_value(arg0);
 		if (GET_OP(instruction) == 0x0a) {          /* if an ADDIL */
 		    /* set to addil L'sym, r0 */
-		    instruction = (instruction & REG_MASK);
+		    instruction = (instruction & REG_MASK) | R27_MASK;
 		}
 		/* else ldw/stw is set to use r1 already */
 #ifdef TSD /* TSD */


The important part is

-		    instruction = (instruction & REG_MASK);
+		    instruction = (instruction & REG_MASK) | R27_MASK;

.  I don't really know what my changes do, just the kernel links correctly
with them and doesn't without.

Anyway, kudos to the folks who convinced HP to GPL the linker in the first
place.  Otherwise, we'd be pretty stuck by now.

	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] txn_alloc_irq() change
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> I was working through Message Signalled Interrupt (aka TBIs) allocation
> and realized our current txn_alloc_irq() implementation needs to accepted
> at least one parameter. The parameter would indicate a (one of two)
> capability of the caller's device. Returning a negative irq indicates
> the host can't support the device because the host doesn't have a
> compatible resource.

The original plan was to hide txn_alloc_irq (which I still think is a bad
name as no-one is going to remember it) in bus-specific wrappers --
gsc_alloc_irq is one, though the Dino driver does not use it currently.

So this doesn't even affect "well-written" drivers.  Changing txn_alloc_irq
isn't exactly high-priority as all systems that use <= 31 interrupt-generating
devices (which I guess are the systems we're currently working with) should
work just fine right now.

>         /* enable_irq() will use txn_* to program IRdT (PAT only) */
>         vi->vi_txn_addr = txn_alloc_addr(vi->vi_txn_irq);
>         vi->vi_txn_data = txn_alloc_data(vi->vi_txn_irq);

txn_alloc_{addr,data} are confusing names as those functions don't actually
allocate anything.

> In addition, I would like folks to tell me if we should add a second
> parameter to indicate how "wide" the "txn_addr" can be. I had assumed
> the width of a host processor pointer address but cards may not support
> enough bits (ie 32-bit card won't work on system which wants 40-bit or
> 44-bit physical addr). AFAIK PA-Risc systems have processors aliased to
> below 4GB physical address and thus it won't be an issue for our port.
> But other architectures do support MSI and it seems easy to avoid
> nasty surprizes later.

This, again, depends on the bus.  For PCI, either your card supports dual
address cycles and you can use 64 bits, or it doesn't, in which case your
system needs to alias everything below 4 GB anyway.

	Philipp Rumpf


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From: Frank Rowand <frank_rowand@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] bad news, good news, unkown (Temp CR used as permanent storage)
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Philipp Rumpf wrote:

< stuff deleted >

> > (Of course, the obvious exception is that the Temporary Control
> > Registers are undefined when the kernel's HPMC handler is called.)
> 
> How is that obvious ?  I would have expected the firmware HPMC handler

Ahhh, obvious if one had read the comments at the beginning of the basic
hpmc handler that I submitted.  Or read p. 1-16 of pdce.pdf, "PA-RISC 2.0
Formware Architecture Reference Specification: Processor Dependent Code
(PDC) Procedures (Part 2/2)" at
http://thepuffingroup.com/parisc/documentation.html

OK, so it's not so obvious....

-Frank


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Subject: Re: [parisc-linux] a pretty big change
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After a day of hacking, I was finally able to link the kernel successfully.
It booted through to the end of realmode_setup.  Probably, further work is
needed on the TLB handler.  I wonder if calls between real and virt, and
visa versa are working.  No change to som_relocate was necessary.

There is one problem.  I now have to turn off the system power to get the
system to reboot.  Formerly, I could just press the TOC button.

It also looks like the "real_" defines and protos can be eliminated.

Dave
> 
> 
> Bad failures occur (for me) with the hpux boot loader.  I have no
> idea whether I introduced them, but I might have.  It looks
> like the first instruction of vmlinux doesn't even get executed,
> so probably something in the SOM header is telling the hpux boot loader to
> do something stupid.  som_relocate may need an upgrade, but I'm
> stumped about what's going wrong.
> 
> 	-P
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] a pretty big change
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= After a day of hacking, I was finally able to link the kernel successfully.
= It booted through to the end of realmode_setup.  Probably, further work is
= needed on the TLB handler.  I wonder if calls between real and virt, and
= visa versa are working.  No change to som_relocate was necessary.

Glad you had better luck with the HPUX boot loader than I had.

= There is one problem.  I now have to turn off the system power to get the
= system to reboot.  Formerly, I could just press the TOC button.

That happens pretty frequently to me but I've not tracked down why
it happens.  Did you try holding the TOC button in for several seconds?
On some workstations I've been told that generates a hard reset.

= It also looks like the "real_" defines and protos can be eliminated.

As I merge in your changes I'll look into that.

	-P

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From: "Muench, David" <dmuen@retrotech.com>
To: "'hppa-linux@thepuffingroup.com'" <hppa-linux@thepuffingroup.com>
Subject: RE: [hppa-linux] Bootstrap #3 successful
Date: Wed, 10 Mar 1999 13:01:14 -0500
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If I'm #7 listed down there, it was off a scsi disk. Sorry I forgot to
mention that.

---
David Muench - Project System Administrator
Retrotech, Inc. - http://www.retrotech.com/



-----Original Message-----
From: Jason Eckhardt [mailto:jason@equator.com]
Sent: Wednesday, March 10, 1999 12:12 PM
To: hppa-linux@thepuffingroup.com
Subject: [hppa-linux] Bootstrap #3 successful



I'm happy to report that bootstrap #3 passed for everyone who reported back
thus far, thanks for taking the time to help out. Network, disk, and even
ZIP drive boots worked. I'd like to see a CD-ROM test if someone has a
CDR drive available.

1) 780/C160       (disk)
2) 715/64         (BOOTP)
3) 816/E35        (disk)
4) 712/100        (disk)
5) 712/100        (SCSI ZIP drive!)
6) 715/33         (RBOOTD) 
7) 715/80         (?disk?)

This means that we now have a simple but functional bootstrap. We are ready
to load a real kernel instead of a dummy one!

Phil Schwan is helping to solve the ftp problems and I will be uploading
the latest working boot sources. I've also added GPL license stubs to
each source file, a mildly detailed README, etc.

Regards,
Jason Eckhardt.

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From - Thu Nov 08 21:11:25 2018
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From: tor@spacetec.no (Tor Arntsen)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] drivers/gecko
Date: Wed, 8 Dec 1999 11:40:13 +0100
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Did somebody  rm -rf /home/cvs/parisc/linux/drivers/gecko  directly in the
CVS repository?

cvs [server aborted]: cannot open directory /home/cvs/parisc/linux/drivers/gecko: No such file or directory

-Tor


From - Thu Nov 08 21:11:25 2018
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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] a pretty big change
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Xref: news.gmane.org gmane.linux.ports.parisc:6575

Hi all,

I have build a new kernel with the CVS version
19991205 and I get the following console output when I
try to boot it on my 715/33:

PARISC/Linux Bootstrap Version 0.6 (interactive)
By Helge Deller & Jason Eckhardt
Built Mon Dec 6 11:13:34 MET 1999 by root@be5359

Reading parameters...done.

Loading PA-RISC/Linux Kernel...

Please enter the command-line:
/stand/vmlinux HOME=/ TERM=LINUX console=tty

SOM-Kernel:
aux_header_location: 00000080
som       : 00200080
exec_dfile: 000CE000
exec_dsize: 00081000
exec_dmem : C00A0000
exec_tfile: 0003E000
exec_tsize: 0008F008
exec_tmem : C0010000
Code at 0x00010000, size=0x0008F008
Data at 0x000A0000, size=0x00081000
BSS  at 0x00121000.

Transferring control to kernel. (At entry point
0x00010000)
kernel(0x146880, 0x504010, 0x146880, 0x12c30)
Boot loader: PA/Linux, maybe PALO
kernel free mem 0x00146880
realmode_setup exiting
Can't insert TLB miss handler pa 0x40000000 va
0x00000000
r0-3    0x0004fb0b      0xc0112000      0xc004a170    
 0x00000000
r4-7    0xc0112000      0x00000000      0x00000400    
 0x00000000
r8-11   0xc01db000      0x00000000      0x00000400    
 0x00000100
r12-15  0xc01a4988      0x00000000      0x00000000    
 0x00000000
r16-19  0x00000000      0x00000400      0x00001000    
 0x0000001f
r20-23  0x00000020      0xc01a001c      0x00000001    
 0xc01268b0
r24-27  0x00000000      0x00000400      0x00000000    
 0xc009f000
r28-31  0xc01db000      0x0000000b      0xc01a4f40    
 0xc007a39c
sr0-3   0x00000000      0x00000000      0x00000000    
 0x00000000
sr4-7   0x00000000      0x00000000      0x00000000    
 0x00000000
iasq 0x00000020 0x00000003
iaoq 0xc004a078 0xc004a07c
cr30 0x00000000 ksp 0x00000001 kpc 0xc01a4f80 sar
0x00000012
iir 0x48730038

The last successful booting kernel was from the CVS
version 19991123.

Any ideas ?
Ulrich

--- Paul Bame <bame@debian.fc.hp.com> wrote:
> 
> I just committed the changes to embed real-mode code
> in a separate
> executable inside vmlinux.  It should cause no
> functional changes
> in theory.  Read all about it in
> arch/parisc/real/README and
> ee.html.  If you have terrible new problems,
> I've attached a list of CVS commands to check out
> the files before I
> started hacking on them.  I haven't seen a shell
> prompt from this
> set of hacks so beware...
> 
> 	-Paul Bame
> 
> prumpf- I moved kernel_thread and friends from
> 	real/<something> to kernel/head.S  I also
> re-enabled BTLB in
> 	real/setup.c so I could get further in the boot. 
> Left some
> 	debugging printks in the handle_real_interrupt
> handler too.
> 
> cvs update -r1.25 arch/parisc/Makefile
> 	cvs update -A arch/parisc/Makefile
> cvs update -r1.28 arch/parisc/kernel/Makefile
> 	cvs update -A arch/parisc/kernel/Makefile
> cvs update -r1.35 arch/parisc/kernel/head.S
> 	cvs update -A arch/parisc/kernel/head.S
> cvs update -r1.39 arch/parisc/kernel/irq.c
> 	cvs update -A arch/parisc/kernel/irq.c
> cvs update -r1.14 arch/parisc/kernel/pdc.c
> 	cvs update -A arch/parisc/kernel/pdc.c
> cvs update -r1.25 arch/parisc/kernel/pdc_cons.c
> 	cvs update -A arch/parisc/kernel/pdc_cons.c
> cvs update -r1.73 arch/parisc/kernel/setup.c
> 	cvs update -A arch/parisc/kernel/setup.c
> cvs update -r1.11 arch/parisc/kernel/traps.c
> 	cvs update -A arch/parisc/kernel/traps.c
> cvs update -r1.2 arch/parisc/real/Makefile
> 	cvs update -A arch/parisc/real/Makefile
> cvs update -r1.2 arch/parisc/real/head.S
> 	cvs update -A arch/parisc/real/head.S
> cvs update -r1.2 arch/parisc/real/interruption.S
> 	cvs update -A arch/parisc/real/interruption.S
> cvs update -r1.2 arch/parisc/real/lib.c
> 	cvs update -A arch/parisc/real/lib.c
> cvs update -r1.2 arch/parisc/real/pdc.c
> 	cvs update -A arch/parisc/real/pdc.c
> cvs update -r1.2 arch/parisc/real/real.h
> 	cvs update -A arch/parisc/real/real.h
> cvs update -r1.2 arch/parisc/real/real_s.S
> 	cvs update -A arch/parisc/real/real_s.S
> cvs update -r1.2 arch/parisc/real/setup.c
> 	cvs update -A arch/parisc/real/setup.c
> cvs update -r1.1 arch/parisc/real/traps.c
> 	cvs update -A arch/parisc/real/traps.c
> cvs update -r1.1 include/asm-parisc/real.h
> 	cvs update -A include/asm-parisc/real.h
> 
>
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> 
> 

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From: Paul Bame <bame@fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] a pretty big change
Date: Wed, 08 Dec 1999 08:54:39 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:6576

= Hi all,
= 
= I have build a new kernel with the CVS version
= 19991205 and I get the following console output when I
= try to boot it on my 715/33:

If you'll place that kernel somewhere I can get it, I'll check
this, or you can.  Look into the kernel and/or System.map
for what's at 0xc004a078, which is inside a procedure which will
return to 0xc0112000.  It looks like a null (or small) pointer
dereference because we're trying to create a virtual mapping for address 0.

	-P

= PARISC/Linux Bootstrap Version 0.6 (interactive)
= By Helge Deller & Jason Eckhardt
= Built Mon Dec 6 11:13:34 MET 1999 by root@be5359
= 
= Reading parameters...done.
= 
= Loading PA-RISC/Linux Kernel...
= 
= Please enter the command-line:
= /stand/vmlinux HOME=/ TERM=LINUX console=tty
= 
= SOM-Kernel:
= aux_header_location: 00000080
= som       : 00200080
= exec_dfile: 000CE000
= exec_dsize: 00081000
= exec_dmem : C00A0000
= exec_tfile: 0003E000
= exec_tsize: 0008F008
= exec_tmem : C0010000
= Code at 0x00010000, size=0x0008F008
= Data at 0x000A0000, size=0x00081000
= BSS  at 0x00121000.
= 
= Transferring control to kernel. (At entry point
= 0x00010000)
= kernel(0x146880, 0x504010, 0x146880, 0x12c30)
= Boot loader: PA/Linux, maybe PALO
= kernel free mem 0x00146880
= realmode_setup exiting
= Can't insert TLB miss handler pa 0x40000000 va
= 0x00000000
= r0-3    0x0004fb0b      0xc0112000      0xc004a170    
=  0x00000000
= r4-7    0xc0112000      0x00000000      0x00000400    
=  0x00000000
= r8-11   0xc01db000      0x00000000      0x00000400    
=  0x00000100
= r12-15  0xc01a4988      0x00000000      0x00000000    
=  0x00000000
= r16-19  0x00000000      0x00000400      0x00001000    
=  0x0000001f
= r20-23  0x00000020      0xc01a001c      0x00000001    
=  0xc01268b0
= r24-27  0x00000000      0x00000400      0x00000000    
=  0xc009f000
= r28-31  0xc01db000      0x0000000b      0xc01a4f40    
=  0xc007a39c
= sr0-3   0x00000000      0x00000000      0x00000000    
=  0x00000000
= sr4-7   0x00000000      0x00000000      0x00000000    
=  0x00000000
= iasq 0x00000020 0x00000003
= iaoq 0xc004a078 0xc004a07c
= cr30 0x00000000 ksp 0x00000001 kpc 0xc01a4f80 sar
= 0x00000012
= iir 0x48730038
= 
= The last successful booting kernel was from the CVS
= version 19991123.
= 
= Any ideas ?
= Ulrich
= 
= --- Paul Bame <bame@debian.fc.hp.com> wrote:
= > 
= > I just committed the changes to embed real-mode code
= > in a separate
= > executable inside vmlinux.  It should cause no
= > functional changes
= > in theory.  Read all about it in
= > arch/parisc/real/README and
= > ee.html.  If you have terrible new problems,
= > I've attached a list of CVS commands to check out
= > the files before I
= > started hacking on them.  I haven't seen a shell
= > prompt from this
= > set of hacks so beware...
= > 
= > 	-Paul Bame
= > 
= > prumpf- I moved kernel_thread and friends from
= > 	real/<something> to kernel/head.S  I also
= > re-enabled BTLB in
= > 	real/setup.c so I could get further in the boot. 
= > Left some
= > 	debugging printks in the handle_real_interrupt
= > handler too.
= > 
= > cvs update -r1.25 arch/parisc/Makefile
= > 	cvs update -A arch/parisc/Makefile
= > cvs update -r1.28 arch/parisc/kernel/Makefile
= > 	cvs update -A arch/parisc/kernel/Makefile
= > cvs update -r1.35 arch/parisc/kernel/head.S
= > 	cvs update -A arch/parisc/kernel/head.S
= > cvs update -r1.39 arch/parisc/kernel/irq.c
= > 	cvs update -A arch/parisc/kernel/irq.c
= > cvs update -r1.14 arch/parisc/kernel/pdc.c
= > 	cvs update -A arch/parisc/kernel/pdc.c
= > cvs update -r1.25 arch/parisc/kernel/pdc_cons.c
= > 	cvs update -A arch/parisc/kernel/pdc_cons.c
= > cvs update -r1.73 arch/parisc/kernel/setup.c
= > 	cvs update -A arch/parisc/kernel/setup.c
= > cvs update -r1.11 arch/parisc/kernel/traps.c
= > 	cvs update -A arch/parisc/kernel/traps.c
= > cvs update -r1.2 arch/parisc/real/Makefile
= > 	cvs update -A arch/parisc/real/Makefile
= > cvs update -r1.2 arch/parisc/real/head.S
= > 	cvs update -A arch/parisc/real/head.S
= > cvs update -r1.2 arch/parisc/real/interruption.S
= > 	cvs update -A arch/parisc/real/interruption.S
= > cvs update -r1.2 arch/parisc/real/lib.c
= > 	cvs update -A arch/parisc/real/lib.c
= > cvs update -r1.2 arch/parisc/real/pdc.c
= > 	cvs update -A arch/parisc/real/pdc.c
= > cvs update -r1.2 arch/parisc/real/real.h
= > 	cvs update -A arch/parisc/real/real.h
= > cvs update -r1.2 arch/parisc/real/real_s.S
= > 	cvs update -A arch/parisc/real/real_s.S
= > cvs update -r1.2 arch/parisc/real/setup.c
= > 	cvs update -A arch/parisc/real/setup.c
= > cvs update -r1.1 arch/parisc/real/traps.c
= > 	cvs update -A arch/parisc/real/traps.c
= > cvs update -r1.1 include/asm-parisc/real.h
= > 	cvs update -A include/asm-parisc/real.h
= > 
= >
= ---------------------------------------------------------------------------
= > To unsubscribe: send e-mail to
= > parisc-linux-request@thepuffingroup.com with
= > `unsubscribe' as the subject.
= > 
= > 
= 
= __________________________________________________
= Do You Yahoo!?
= Thousands of Stores.  Millions of Products.  All in one place.
= Yahoo! Shopping: http://shopping.yahoo.com


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From: Grant Grundler <grundler@cup.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:6577

Philipp Rumpf wrote:
> > This directory seems to be a gold mine of information about hardware.
> 
> One extremely interesting piece of information for those interested in the
> PA2.0 port:  64-bit virtual addresses are 42 bits per quadrant only and
> start at the smallest address in the quadrant - so unlike alpha where the
> addresses are "sign-extended".

Actually, HP-UX does sign extend I/O addresses. I'm not sure
if this is a feature of HP-UX or something in the HW makes it
easier to do it this way...anyone know?

Secondly, don't make assumptions about how many bits are used in
a virtual or physical addresses unless it's processor specific code.
(eg TLB handler or trap handler or hpmc handler). I know the number
of physical bits supported by the processor is going to increase
from 40-bits (runway).

cheers,
grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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Xref: news.gmane.org gmane.linux.ports.parisc:6578

I just wanted to let you know that the slowdown on puffin.external has
been largely cleared.  It was partially the result of hypermail run
wild (there are some truly amazing bugs in that software), and
partially the result of my inability to make sendmail do what I want.

Some email from the last few days may arrive out-of-order, but it
should be correct in the archives and from here on out.

In other news, by popular demand, the archive web pages will shortly
have the date printed in the message listing.  Hopefully this will
make it easier to find what you're looking for.  Coming soon, a
monthly breakdown of the lists (long overdue).

-Phil


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From: Nils Bokermann <nilsb@bermuda.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715-75 (netboot?)
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Hi!

Is there a way to boot linux on a HP 9000 (apollo) 715-75 over the net
(yes -- it is, with rbootd, wich runs here). But HOW can I get a
ramdisk to my HP??

Bye, Nils

P.S.: In fact, there is a Disk in the HP, but I don't want to risk the
HP-UX running on it :)

-- 
Nils Bokermann
Johanneswerkstr. 90        Phone: +49 521 8807498
33613 Bielefeld            "Wir wollen die Natur nicht erhalten -- 
Germany                     Wir wollen nur ihre Dynamik nicht st"oren." 


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Xref: news.gmane.org gmane.linux.ports.parisc:6580

On Dec 09, Nils Bokermann wrote:
> Is there a way to boot linux on a HP 9000 (apollo) 715-75 over the net
> (yes -- it is, with rbootd, wich runs here). But HOW can I get a
> ramdisk to my HP??

At the moment, the ramdisk is linked into the kernel image.  When you
"make Image", it pulls "ramdisk.bin" from your top-level kernel source
directory.

-Phil


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] drivers/gecko
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To: tor@spacetec.no (Tor Arntsen)
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Tor Arntsen wrote:
> Did somebody  rm -rf /home/cvs/parisc/linux/drivers/gecko  directly in the
> CVS repository?
> 
> cvs [server aborted]: cannot open directory /home/cvs/parisc/linux/drivers/ge
>   cko: No such file or directory

Alex renamed the directory to drivers/gsc at my request.
He made the mistake of promising me to rename it if I showed
up at ALS....and I did. So I'm happy.

grant

> -Tor
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] txn_alloc_irq() change
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[ I didn't respond sooner because of parisc-linux mail problems...
  thank phil! - grant ]

Philipp Rumpf wrote:
> > I was working through Message Signalled Interrupt (aka TBIs) allocation
> > and realized our current txn_alloc_irq() implementation needs to accepted
> > at least one parameter. The parameter would indicate a (one of two)
> > capability of the caller's device. Returning a negative irq indicates
> > the host can't support the device because the host doesn't have a
> > compatible resource.
> 
> The original plan was to hide txn_alloc_irq (which I still think is a bad
> name as no-one is going to remember it) in bus-specific wrappers --
> gsc_alloc_irq is one, though the Dino driver does not use it currently.

For munging the return values on specific busses, I agree. By that,
I mean gsc_alloc_irq() is a useful interface for GSC devices which
program their EIM register. This service is NOT bus specific.

I'm open for suggestions on the name.

I won't be able to modify Dino in the near future to
use the same services LASI is using. I can work on this
next month.

> So this doesn't even affect "well-written" drivers.

This is wrong. Symbios SCSI, ATM, and Gigabit Ethernet Drivers could
all *directly* use this service. All of those devices are capable of
mastering a "Message Signalled Interrupt" instead of yanking an IRQ line.
It's a chicken and egg problem though: since no service exists for them
on PC's, the drivers aren't written to use it. With IA64 and PA-risc
joining the parade, the drivers can take advantage of those features.
I'm pretty sure the "high-speed" networking folks at CERN will be
interested in this once they understand its utility.

> Changing txn_alloc_irq isn't exactly high-priority as all systems that
> use <= 31 interrupt-generating devices (which I guess are the systems
> we're currently working with) should work just fine right now.

Your priorities don't match mine. I'm getting paid to work on stuff
which only runs under PA2.0. I'm helping with PA1.1 I/O subsystem because
the vast majority of everything else is common (and it's fun too).

GSC/NIO devices implement an EIM register and can only use EIR bits 0-31.
GSC Fast/Wide/Diff SCSI (NCR c720 SCSI) driver does NOT have to use the
EIM register. Similarly, some ATM/SCSI/GigE PCI devices behind Dino
don't have to use IRQ lines. MSI support depends on the "processor",
not the bus.

The current interface only works for a subset of all parisc platforms.
I'm proposing an architectural change to support all current (and some
future) parisc platforms because I think it's the "right" thing to do.


> >         /* enable_irq() will use txn_* to program IRdT (PAT only) */
> >         vi->vi_txn_addr = txn_alloc_addr(vi->vi_txn_irq);
> >         vi->vi_txn_data = txn_alloc_data(vi->vi_txn_irq);
> 
> txn_alloc_{addr,data} are confusing names as those functions don't actually
> allocate anything.

They don't currently allocate anything but future implementations could.
The IRQ is a *virtual* IRQ (prumpf knows that; I don't have to tell him).
The address and data associated with that IRQ can be any CPU and any EIR
bit for a given CPU.

Secondly, the names match with txn_alloc_irq() and that makes it easier
to remember. I'm open to changing the names for all three functions.


> > In addition, I would like folks to tell me if we should add a second
> > parameter to indicate how "wide" the "txn_addr" can be. I had assumed
> > the width of a host processor pointer address but cards may not support
> > enough bits (ie 32-bit card won't work on system which wants 40-bit or
> > 44-bit physical addr). AFAIK PA-Risc systems have processors aliased to
> > below 4GB physical address and thus it won't be an issue for our port.
> > But other architectures do support MSI and it seems easy to avoid
> > nasty surprizes later.
> 
> This, again, depends on the bus.  For PCI, either your card supports dual
> address cycles and you can use 64 bits, or it doesn't, in which case your
> system needs to alias everything below 4 GB anyway.

That's true. But the card *also* needs to support dual address cycle
and the caller (ie device driver) will know this. For systems which
alias stuff below 4GB, we should just use those aliases. I'm concerned
about a case where the PCI bus adapter supports dual address cycle,
the card does not, no alias exists, and the processor is above 4GB.
Somewhat obscure and I hope we don't run into this. That's why I simply
ask for folks to tell me if we should support it even if it might not
get used.

Dino does not support dual address cycle.
"lba" (C3000/J5000) PCI bus adapter does.

thanks prumpf for the feedback,
grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: [parisc-linux] drivers/gecko
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Tor Arntsen wrote:
> 
> Did somebody  rm -rf /home/cvs/parisc/linux/drivers/gecko  directly in the
> CVS repository?
> 
> cvs [server aborted]: cannot open directory /home/cvs/parisc/linux/drivers/gecko: No such file or directory


If you do a 'cvs update -d', you'll get the new directory.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group

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Jason Eckhardt wrote:
> 
> I'm happy to report that bootstrap #3 passed for everyone who reported back
> thus far, thanks for taking the time to help out. Network, disk, and even
> ZIP drive boots worked. I'd like to see a CD-ROM test if someone has a
> CDR drive available.
> 
> 1) 780/C160       (disk)
> 2) 715/64         (BOOTP)
> 3) 816/E35        (disk)
> 4) 712/100        (disk)
> 5) 712/100        (SCSI ZIP drive!)
> 6) 715/33         (RBOOTD)
> 7) 715/80         (?disk?)

    It didn't seem to work for me coming off bootp.  It might have been
my mistake, so I'll verify from home tonight and give you the results. 
My system is a 712/60.

								- Paul

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Subject: Re: [parisc-linux] a pretty big change
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> That happens pretty frequently to me but I've not tracked down why
> it happens.  Did you try holding the TOC button in for several seconds?
> On some workstations I've been told that generates a hard reset.

TOC results in (providing that the checksum passes) transfer of control
to a routine pointed at from page 0.  If something is trashing that, and
the checksum'ed length is set to 0, then you'll branch off into the ozone.

If the checksum fails, then you get the PDC default of rebooting.

Don't know if that's your problem, but it's probably worth checking into
whether something is trashing physical address 8 (TOC vector - 0xc is the
length of the checksum.)

lamont


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> However, there is a chance that existing PDC does not modify the
> Temporary Control Registers, based on conversations with some
> relevent engineers, and some theorizing.
>
> (Of course, the obvious exception is that the Temporary Control
> Registers are undefined when the kernel's HPMC handler is called.)

In this context I interpreted the last paragraph as saying that even if
firmware is nice and doesn't modify the temporary registers during PDC
calls, there is no chance whatsoever that the temporary registers contain
useful values after every HPMC on a certain firmware implementation.
(Now I don't see how HPMC's are an exception to the more general rule
that some firmware implementations might preserve the temporary registers).

> Ahhh, obvious if one had read the comments at the beginning of the basic
> hpmc handler that I submitted.
> Or read p. 1-16 of pdce.pdf, "PA-RISC 2.0
> Formware Architecture Reference Specification: Processor Dependent Code
> (PDC) Procedures (Part 2/2)" at
> http://thepuffingroup.com/parisc/documentation.html

Which contradict each other wrt the PSW W and E bits (E isn't going to
concern us but W might), btw.

	Philipp Rumpf


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> > The original plan was to hide txn_alloc_irq (which I still think is a bad
> > name as no-one is going to remember it) in bus-specific wrappers --
> > gsc_alloc_irq is one, though the Dino driver does not use it currently.
> 
> For munging the return values on specific busses, I agree. By that,
> I mean gsc_alloc_irq() is a useful interface for GSC devices which
> program their EIM register. This service is NOT bus specific.

Yes, it is.  Whether you can even reach the CPU's EIR register from a
certain bus is bus-specific.  Which EIR you want to use if you have the
choice is bus-specific.  The address of the EIR, if you can reach
it, is bus-specific (as you have a TLB between your system bus and the
I/O bus(ses) on most PA2.0 systems, right ?).  The length of the data
word you can send is bus-specific (5 bits for GSC, 6 bits for 64-bit
PA busses).

> I'm open for suggestions on the name.

If you want to export txn_alloc_irq to PCI drivers, ask the guys who will
actually have to use it - i.e. the driver authors for devices you want to
use transaction interrupts and the PCI maintainers for architectures that
support transaction interrupts (IA64 and PA-RISC ?).

If you want to keep the function parisc-specific and not exported to drivers
(just to the bus-specific wrappers), it could be called "cca1a78e0" without
anyone getting too upset about it.

> > So this doesn't even affect "well-written" drivers.
> This is wrong. Symbios SCSI, ATM, and Gigabit Ethernet Drivers could
> all *directly* use this service. All of those devices are capable of
> mastering a "Message Signalled Interrupt" instead of yanking an IRQ line.

And why would the driver be concerned with it ?  I am not sure how PCI
TBIs work, but the way I would hope it works is the PCI bus initialization
code assigns address/data pairs to those devices that support TBIs and
puts the corresponding irq into the pci_dev structure.  That way, we're
down to one line of code that calls txn_alloc_irq.

For those PCI devices that don't use the standard configuration mechanism
to do TBIs, if they should turn out to be worth it, you would have to do
stuff in the actual device driver, but I don't think there are many devices
to which this applies.

> It's a chicken and egg problem though: since no service exists for them
> on PC's, the drivers aren't written to use it. With IA64 and PA-risc

If you need to let the driver know which mechanism is used at the hardware
level to deliver interrupts, that's a flaw of the PCI spec (and would make
TBIs a lot less usable than IRQ line PCI interrupts). 

> > Changing txn_alloc_irq isn't exactly high-priority as all systems that
> > use <= 31 interrupt-generating devices (which I guess are the systems
> > we're currently working with) should work just fine right now.
> 
> Your priorities don't match mine. I'm getting paid to work on stuff
> which only runs under PA2.0.

The public Linux/PA-RISC tree is PA1.1 only right now, and I dare say we
don't care about systems with more than 31 IRQ-generating devices.

I don't know about the IA64 tree and any non-public Linux/PA-RISC trees,
but it was my impression those have their own mailing-lists and changes
to them need not be discussed here.

> The current interface only works for a subset of all parisc platforms.

Yeah, the subset with <= 31 devices.

> > txn_alloc_{addr,data} are confusing names as those functions don't actually
> > allocate anything.
> 
> They don't currently allocate anything but future implementations could.

How ?

All the allocation is handled in txn_alloc_irq - it returns a virtual irq
that can be resolved to an address/data pair lateron.  If we want to allocate
data (eg the eim bit index right now), it's done in txn_alloc_irq.  If we
want to allocate addresses (eg the future txn_alloc_irq returning the right
CPU's EIR), we do it in txn_alloc_irq.

> The IRQ is a *virtual* IRQ (prumpf knows that; I don't have to tell him).
> The address and data associated with that IRQ can be any CPU and any EIR
> bit for a given CPU.
> 
> Secondly, the names match with txn_alloc_irq() and that makes it easier
> to remember. I'm open to changing the names for all three functions.

Actually, what you should think about is merging the three functions -
virtual irq, transaction address and transaction data don't make sense on
their own, so you almost always end up doing

	tmp1 = txn_alloc_irq(...);
	tmp2 = txn_alloc_addr(irq);
	tmp3 = txn_alloc_data(irq);

which seems unnecessarily verbose.

	Philipp Rumpf


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> > PA2.0 port:  64-bit virtual addresses are 42 bits per quadrant only and
> > start at the smallest address in the quadrant - so unlike alpha where the
> > addresses are "sign-extended".
> Actually, HP-UX does sign extend I/O addresses. I'm not sure

That's physical addresses though, so we really don't care, do we ?

> if this is a feature of HP-UX or something in the HW makes it
> easier to do it this way...anyone know?
> 

> Secondly, don't make assumptions about how many bits are used in
> a virtual or physical addresses unless it's processor specific code.
> (eg TLB handler or trap handler or hpmc handler). I know the number
> of physical bits supported by the processor is going to increase
> from 40-bits (runway).

physical addresses you are right about;  we really should use an unsigned
long for those and never expect them to be less than 64 bits in length.

virtual addresses, unfortunately, aren't as simple:  The 32 LSBs of the
space identifier get ORed into the 32 MSBs of the virtual address, so we
are limited to 2+(62-virtual_address_bits_used) effective bits for space
identifiers (on PA2.0 CPUs with 32 bit space registers).  As we want to
use at least one space identifier per process, actually using only 42
bits of the virtual address gives us 22 bits of space identifiers - or
1 M processes even if we use 4 space identifiers per process.

	Philipp Rumpf


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] txn_alloc_irq() change
Date: Wed, 08 Dec 1999 23:00:08 -0800
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To: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
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Philipp Rumpf wrote:
> > For munging the return values on specific busses, I agree. By that,
> > I mean gsc_alloc_irq() is a useful interface for GSC devices which
> > program their EIM register. This service is NOT bus specific.
> 
> Yes, it is.  Whether you can even reach the CPU's EIR register from a
> certain bus is bus-specific.  Which EIR you want to use if you have the
> choice is bus-specific.  The address of the EIR, if you can reach
> it, is bus-specific (as you have a TLB between your system bus and the
> I/O bus(ses) on most PA2.0 systems, right ?).  The length of the data
> word you can send is bus-specific (5 bits for GSC, 6 bits for 64-bit
> PA busses).

Philipp,
The *service* is not bus specific. The details (ie parameters) are.
Please seperate interfaces from implementations.
You claimed early on you would do that.

> > I'm open for suggestions on the name.
> 
> If you want to export txn_alloc_irq to PCI drivers, ask the guys who will
> actually have to use it - i.e. the driver authors for devices you want to
> use transaction interrupts and the PCI maintainers for architectures that
> support transaction interrupts (IA64 and PA-RISC ?).

Ok. I need to lookup and contact NCR/Symbios SCSI, ATM, and GigE
driver authors and pester them one this topic.
Won't happen until next year. I'll do it then.

If someone knows the right people to ask, please just "cc"
me in the conversion for now...

I've already spoken at length with David Mossberger (IA64) about this
and he basically doesn't care right now. He finds the topic interesting
but HP isn't funding him to do any work which mostly benefits servers.
Though txn_xxx services help PA-Risc workstations too, IA64 has some
interesting interrupt HW support which kluges around the need for MSI
on configurations with less than about 4 CPUs.  But neither David nor
I fully understand how IA64-linux supports this HW.

(I do know how HP-UX supports the same platform though.)

> If you want to keep the function parisc-specific and not exported to drivers
> (just to the bus-specific wrappers), it could be called "cca1a78e0" without
> anyone getting too upset about it.

Really?
As Alex would say: "I don't believe you".

> > > So this doesn't even affect "well-written" drivers.
> > This is wrong. Symbios SCSI, ATM, and Gigabit Ethernet Drivers could
> > all *directly* use this service. All of those devices are capable of
> > mastering a "Message Signalled Interrupt" instead of yanking an IRQ line.
> 
> And why would the driver be concerned with it?

Latency and CPU utilization. The former directly affect response times
and the latter throughput.  Using this service on PA-Risc will remove one
level of function calls from the interrupt code path on PCI subsystems.

> I am not sure how PCI
> TBIs work, but the way I would hope it works is the PCI bus initialization
> code assigns address/data pairs to those devices that support TBIs and
> puts the corresponding irq into the pci_dev structure.  That way, we're
> down to one line of code that calls txn_alloc_irq.

I know how they work.  You need to do more homework before "hoping" much.
And pci_dev structure only has room for the virtual IRQ. That may change
for PCI 2.2 but I want to support PCI 2.1 compliant devices as well.

More importantly, not all PCI devices discovered can or will want
to directly master their own interrupt transaction.  I.e. assigning
CPU/EIR bits to every serial port card is a waste of resources.

> For those PCI devices that don't use the standard configuration mechanism
> to do TBIs, if they should turn out to be worth it, you would have to do
> stuff in the actual device driver, but I don't think there are many devices
> to which this applies.

There is no "standard configuration mechanism" for TBI's.
Not until PCI 2.2 becomes more prevalent. SCSI, ATM, and GiGE
PCI devices I'm aware are only PCI 2.1 compliant today.

> 
> > It's a chicken and egg problem though: since no service exists for them
> > on PC's, the drivers aren't written to use it. With IA64 and PA-risc
> 
> If you need to let the driver know which mechanism is used at the hardware
> level to deliver interrupts, that's a flaw of the PCI spec (and would make
> TBIs a lot less usable than IRQ line PCI interrupts). 

You have it backwards: the PCI device driver needs to query the
platform if it supports TXN services and then program the HW accordingly.
Drivers do this all the time to determine capabilities of devices.
If the platform doesn't support MSI, txn_alloc_irq() (with appropriate
parameters) will return an error to indicate it either can't or the
resource (virtual IRQ) isn't available.

Drivers can assume line based interrupts are supported by default
since those are architected in PCI 2.1.

PCI 2.2 only defines how the driver can communicate the devices ability
to master "Message Signalled Interrupts". It doesn't (and shouldn't) say
anything about how the OS interrupt support interacts with the device
driver.

> 
> > > Changing txn_alloc_irq isn't exactly high-priority as all systems that
> > > use <= 31 interrupt-generating devices (which I guess are the systems
> > > we're currently working with) should work just fine right now.
> > 
> > Your priorities don't match mine. I'm getting paid to work on stuff
> > which only runs under PA2.0.
> 
> The public Linux/PA-RISC tree is PA1.1 only right now, and I dare say we
> don't care about systems with more than 31 IRQ-generating devices.

Alex: Can you address this?

I can't speak for The Puffin Group. But inside HP, I, and the people
who pay my salary are very interested in PA 2.0 boxes which can have
more than 31 IRQs. Most people first ask does parisc-linux run on
<something-with-PA20>-class. So despite the official charter,
PA 2.0 is happening on/with the same tree because of interest.
C-class is the first stepping stone in that direction.

> I don't know about the IA64 tree and any non-public Linux/PA-RISC trees,
> but it was my impression those have their own mailing-lists and changes
> to them need not be discussed here.

I disgree.  This is an inclusive forum. If people want to work
on support an 827s or T600s, they are welcome to do it. It's my
choice to decline to help (and I definitely will not help). 

I don't know about the IA64 tree either. In fact, I'm legally not
allowed to look at it *because* I'm working on parisc-linux.
(kinda sucks in fact...but oh well...)

I'm not aware of any other non-public PA-Risc tree's.
I'm working on the same CVS tree as everyone else.

> > The current interface only works for a subset of all parisc platforms.
> 
> Yeah, the subset with <= 31 devices.

I'm trying to get past that limitation.
If you don't want to help, don't reply or just say you don't want to help.
I'm not offended by that.

> 
> > > txn_alloc_{addr,data} are confusing names as those functions don't actual
>   ly
> > > allocate anything.
> > 
> > They don't currently allocate anything but future implementations could.
> 
> How ?
> 
> All the allocation is handled in txn_alloc_irq - it returns a virtual irq
> that can be resolved to an address/data pair lateron.  If we want to allocate
> data (eg the eim bit index right now), it's done in txn_alloc_irq.  If we
> want to allocate addresses (eg the future txn_alloc_irq returning the right
> CPU's EIR), we do it in txn_alloc_irq.

Here's an example: Change the interface to allow the driver to call
txn_alloc_addr() to get a *different* CPU - same virtual IRQ.  And
ditto for txn_alloc_data(). Then txn_alloc_irq() would only
be used to hand out "handles" (ie Virtual IRQs).

Why would a driver want to do that? Because some outside module
is smarter, knows more about the resources available, and told the
device driver to make the request and reprogram it's HW.
My dream is to manage interrupt "load" similar to the way process
and threads are managed. In fact, the two should know about each
other and they don't.

> > The IRQ is a *virtual* IRQ (prumpf knows that; I don't have to tell him).
> > The address and data associated with that IRQ can be any CPU and any EIR
> > bit for a given CPU.
> > 
> > Secondly, the names match with txn_alloc_irq() and that makes it easier
> > to remember. I'm open to changing the names for all three functions.
> 
> Actually, what you should think about is merging the three functions -
> virtual irq, transaction address and transaction data don't make sense on
> their own, so you almost always end up doing
> 
> 	tmp1 = txn_alloc_irq(...);
> 	tmp2 = txn_alloc_addr(irq);
> 	tmp3 = txn_alloc_data(irq);
> 
> which seems unnecessarily verbose.

See above example.
IMHO, the three functions interface is more flexible and matches
the potential uses better.

thanks again,
grant

ps. I'm going to be out of the office until end of the month....bummer
the mail server was out for a bit...happy holidays and happy New Year!

> 
> 	Philipp Rumpf
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Developement Lab
+1.408.447.7253


From - Thu Nov 08 21:11:26 2018
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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] a pretty big change
Date: Thu, 9 Dec 1999 04:24:31 -0800 (PST)
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To: Paul Bame <bame@fc.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:6589

Hello Paul,

thanks for the quick answer. I am sorry but I did not
understand what I see in System.map:

excerpt 1 for System.Map:
c0049f90 t $CODE$
c0049f90 t put_unused_buffer_head
c0049fd8 t L$1856
c004a004 t L$1854
c004a018 t $CODE$
c004a018 t get_unused_buffer_head
c004a110 t $CODE$
c004a110 t create_buffers
c004a320 t $CODE$
c004a320 t end_buffer_io_async

So I thought 0xc004a078 is in get_unused_buffer_head
which is in fs/buffer.c.

excerpt 2 from System.map:
c0111f14 D blkdev_inode_operations
c0111f64 D def_chr_fops
c0111fa0 D chrdev_inode_operations
c0111ff0 d L$C0008
c0111ffc d L$C0009
c011200c d L$C0010
c0112018 d L$C0011
c0112028 d L$C0012
c0112038 D nr_files
c0112038 d lock___76

So 0xc0112000 points into the data segment(?) as a
return address for that subroutine.

Unfortunately I have no anonymous ftp server here at
work, where I can put the kernel for you. And
puffin.external.hp.com has no Incoming directory...

So is it ok to send Image + System.map as a
tar.gz-file via mail to you?

If this problem is not of general interest and other
big changes will happen soon (maybe the 2.3 merge)
where the problem might go away, it is ok that you
simply say "wait for that to happen" to me. 
 
Regards
Ulrich

--- Paul Bame <bame@fc.hp.com> wrote:
> = Hi all,
> = 
> = I have build a new kernel with the CVS version
> = 19991205 and I get the following console output
> when I
> = try to boot it on my 715/33:
> 
> If you'll place that kernel somewhere I can get it,
> I'll check
> this, or you can.  Look into the kernel and/or
> System.map
> for what's at 0xc004a078, which is inside a
> procedure which will
> return to 0xc0112000.  It looks like a null (or
> small) pointer
> dereference because we're trying to create a virtual
> mapping for address 0.
> 
> 	-P
> 
> = PARISC/Linux Bootstrap Version 0.6 (interactive)
> = By Helge Deller & Jason Eckhardt
> = Built Mon Dec 6 11:13:34 MET 1999 by root@be5359
> = 
> = Reading parameters...done.
> = 
> = Loading PA-RISC/Linux Kernel...
> = 
> = Please enter the command-line:
> = /stand/vmlinux HOME=/ TERM=LINUX console=tty
> = 
> = SOM-Kernel:
> = aux_header_location: 00000080
> = som       : 00200080
> = exec_dfile: 000CE000
> = exec_dsize: 00081000
> = exec_dmem : C00A0000
> = exec_tfile: 0003E000
> = exec_tsize: 0008F008
> = exec_tmem : C0010000
> = Code at 0x00010000, size=0x0008F008
> = Data at 0x000A0000, size=0x00081000
> = BSS  at 0x00121000.
> = 
> = Transferring control to kernel. (At entry point
> = 0x00010000)
> = kernel(0x146880, 0x504010, 0x146880, 0x12c30)
> = Boot loader: PA/Linux, maybe PALO
> = kernel free mem 0x00146880
> = realmode_setup exiting
> = Can't insert TLB miss handler pa 0x40000000 va
> = 0x00000000
> = r0-3    0x0004fb0b      0xc0112000      0xc004a170
>    
> =  0x00000000
> = r4-7    0xc0112000      0x00000000      0x00000400
>    
> =  0x00000000
> = r8-11   0xc01db000      0x00000000      0x00000400
>    
> =  0x00000100
> = r12-15  0xc01a4988      0x00000000      0x00000000
>    
> =  0x00000000
> = r16-19  0x00000000      0x00000400      0x00001000
>    
> =  0x0000001f
> = r20-23  0x00000020      0xc01a001c      0x00000001
>    
> =  0xc01268b0
> = r24-27  0x00000000      0x00000400      0x00000000
>    
> =  0xc009f000
> = r28-31  0xc01db000      0x0000000b      0xc01a4f40
>    
> =  0xc007a39c
> = sr0-3   0x00000000      0x00000000      0x00000000
>    
> =  0x00000000
> = sr4-7   0x00000000      0x00000000      0x00000000
>    
> =  0x00000000
> = iasq 0x00000020 0x00000003
> = iaoq 0xc004a078 0xc004a07c
> = cr30 0x00000000 ksp 0x00000001 kpc 0xc01a4f80 sar
> = 0x00000012
> = iir 0x48730038
> = 
> = The last successful booting kernel was from the
> CVS
> = version 19991123.
> = 
> = Any ideas ?
> = Ulrich
> = 
> = --- Paul Bame <bame@debian.fc.hp.com> wrote:
> = > 
> = > I just committed the changes to embed real-mode
> code
> = > in a separate
> = > executable inside vmlinux.  It should cause no
> = > functional changes
> = > in theory.  Read all about it in
> = > arch/parisc/real/README and
> = > ee.html.  If you have terrible new problems,
> = > I've attached a list of CVS commands to check
> out
> = > the files before I
> = > started hacking on them.  I haven't seen a shell
> = > prompt from this
> = > set of hacks so beware...
> = > 
> = > 	-Paul Bame
> = > 
> = > prumpf- I moved kernel_thread and friends from
> = > 	real/<something> to kernel/head.S  I also
> = > re-enabled BTLB in
> = > 	real/setup.c so I could get further in the
> boot. 
> = > Left some
> = > 	debugging printks in the handle_real_interrupt
> = > handler too.
> = > 
> = > cvs update -r1.25 arch/parisc/Makefile
> = > 	cvs update -A arch/parisc/Makefile
> = > cvs update -r1.28 arch/parisc/kernel/Makefile
> = > 	cvs update -A arch/parisc/kernel/Makefile
> = > cvs update -r1.35 arch/parisc/kernel/head.S
> = > 	cvs update -A arch/parisc/kernel/head.S
> = > cvs update -r1.39 arch/parisc/kernel/irq.c
> = > 	cvs update -A arch/parisc/kernel/irq.c
> = > cvs update -r1.14 arch/parisc/kernel/pdc.c
> = > 	cvs update -A arch/parisc/kernel/pdc.c
> = > cvs update -r1.25 arch/parisc/kernel/pdc_cons.c
> = > 	cvs update -A arch/parisc/kernel/pdc_cons.c
> = > cvs update -r1.73 arch/parisc/kernel/setup.c
> = > 	cvs update -A arch/parisc/kernel/setup.c
> = > cvs update -r1.11 arch/parisc/kernel/traps.c
> = > 	cvs update -A arch/parisc/kernel/traps.c
> = > cvs update -r1.2 arch/parisc/real/Makefile
> = > 	cvs update -A arch/parisc/real/Makefile
> = > cvs update -r1.2 arch/parisc/real/head.S
> = > 	cvs update -A arch/parisc/real/head.S
> = > cvs update -r1.2 arch/parisc/real/interruption.S
> = > 	cvs update -A arch/parisc/real/interruption.S
> = > cvs update -r1.2 arch/parisc/real/lib.c
> = > 	cvs update -A arch/parisc/real/lib.c
> = > cvs update -r1.2 arch/parisc/real/pdc.c
> = > 	cvs update -A arch/parisc/real/pdc.c
> = > cvs update -r1.2 arch/parisc/real/real.h
> = > 	cvs update -A arch/parisc/real/real.h
> = > cvs update -r1.2 arch/parisc/real/real_s.S
> = > 	cvs update -A arch/parisc/real/real_s.S
> = > cvs update -r1.2 arch/parisc/real/setup.c
> = > 	cvs update -A arch/parisc/real/setup.c
> = > cvs update -r1.1 arch/parisc/real/traps.c
> = > 	cvs update -A arch/parisc/real/traps.c
> = > cvs update -r1.1 include/asm-parisc/real.h
> = > 	cvs update -A include/asm-parisc/real.h
> = > 
> = >
> =
>
---------------------------------------------------------------------------
> = > To unsubscribe: send e-mail to
> = > parisc-linux-request@thepuffingroup.com with
> = > `unsubscribe' as the subject.
> = > 
> = > 
> = 
> = __________________________________________________
> = Do You Yahoo!?
> = Thousands of Stores.  Millions of Products.  All
> in one place.
> = Yahoo! Shopping: http://shopping.yahoo.com
> 

__________________________________________________
Do You Yahoo!?
Thousands of Stores.  Millions of Products.  All in one place.
Yahoo! Shopping: http://shopping.yahoo.com


From - Thu Nov 08 21:11:26 2018
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From: tor@spacetec.no (Tor Arntsen)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] drivers/gecko
Date: Thu, 9 Dec 1999 13:29:42 +0100
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To: Alex deVries <adevries@thepuffingroup.com>
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In-Reply-To: Alex deVries <adevries@thepuffingroup.com>
       "Re: [parisc-linux] drivers/gecko" (Dec  9,  1:25)
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Xref: news.gmane.org gmane.linux.ports.parisc:6590

(I also read the message from Grant about the renaming)

On Dec 9,  1:25, Alex deVries wrote:
>Tor Arntsen wrote:
>> 
>> Did somebody  rm -rf /home/cvs/parisc/linux/drivers/gecko  directly in the
>> CVS repository?
>> 
>> cvs [server aborted]: cannot open directory /home/cvs/parisc/linux/drivers/gecko: No such file or directory
>
>
>If you do a 'cvs update -d', you'll get the new directory.

That is not the problem.  I always do update -P -d to get rid of emptied
directories and to get any new directories.  The problem is that if you
rename a directory *in* the repository you'll make cvs abort for 
*everybody* with a checked-out tree.  The only way to resolve it for
each of us is to first rm -rf the renamed directory in our checked-out
tree and then edit the CVS/Entries file by hand.  This is not at all 
obvious for people if they don't know CVS well.

The only way to rename a directory in CVS is to first copy it, then
'cvs add' it and all its files, then rm all the files in the old directory
and 'cvs remove' the old directory.  Then you finish with something like
'cvs commit -m"A renamed to B".
If you instead hack the repository itself you break things for the users..
in addition you are now unable to check out and build any older revisions
because the older Makefile will not know the new name of the directory.
So revision history is not conserved.

I guess you just renamed because you wanted to have the CVS logs etc.
associated with the files in the renamed directory.. if you want to do 
that you *can* do a copy in the repository itself, but you must always 
cvs remove the old one in your checked-out tree.  Anyway that will also 
slightly break an older checkout in the sense that an irrelevant directory 
will show up.  Indeed the only clean way in CVS is the copy/add/rm/remove/
commit route.

Best regards,
Tor


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Subject: [parisc-linux] More 9.05 notes and recipe.html
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Had another go at compiling kernel under HPUX 9.05;
here are some more notes.

First off, recipe.html is outdated apparently as
it still tells you to build a hpux/linux cross compiler,
which I'm told is not the way things are now done.

Had to rm -rf ld from binutils or it wouldn't configure
the other directories.

Had to add struct timespec by hand.

Had to remove the +vnocompatwarnings ld flag from
parisc/real/Makefile.

recipe.html's sample bootpd line has semicolons in it which 
fail at least in my /etc/bootptab; should be colons.

Finally got the build working, but no luck booting
(this is a 715/64) with either that or the images
on the web site.  IPL encounters an error of some sort,
but provides no specifics.  I've only tried booting over 
LAN so far.

FWIW,

--
Brian S. Julin



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= Finally got the build working, but no luck booting
= (this is a 715/64) with either that or the images
= on the web site.  IPL encounters an error of some sort,
= but provides no specifics.  I've only tried booting over 
= LAN so far.

If you're using the HPUX boot loader, be sure to run som_relocate
(which will need re-building to run on hpux 9.x) on vmlinux before
trying to boot it.

	-Paul Bame


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Subject: Re: [parisc-linux] a pretty big change
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> So I thought 0xc004a078 is in get_unused_buffer_head
> which is in fs/buffer.c.

I think the bug you are seeing is due to the inline definition for
xchg in asm/system.h.  The problem occurs in exchanges with 0 when
the address used in the ldcws instruction is not aligned on a 16 byte
boundary.  Change the define for xchg to just use the spinlock method
in all cases.

The other option is to align all the addresses that are used in xchg's
with 0.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

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>>>>> Jason Eckhardt <jason@equator.com> alleges:

 JE> I'm happy to report that bootstrap #3 passed for everyone who reported
 JE> back thus far, thanks for taking the time to help out. Network, disk, and
 JE> even ZIP drive boots worked. I'd like to see a CD-ROM test if someone has
 JE> a CDR drive available.

  JE>  1) 780/C160       (disk)
  JE>  2) 715/64         (BOOTP)
  JE>  3) 816/E35        (disk)
  JE>  4) 712/100        (disk)
  JE>  5) 712/100        (SCSI ZIP drive!)
  JE>  6) 715/33         (RBOOTD) 
  JE>  7) 715/80         (?disk?)

Hi,

I have also just tested it on a 887/G50 and a 827S, both from scratch SCSI
disks. Everything went perfectly.

Well done
David
-- 
   ________________________________________________________
  /\ David Tymon                               _           \
 /  \ mailto:davidt@tusc.com.au              _ \X\0         \
/    \                                      (_)/ _\          \
\     \ TUSC Computer Systems              ~~^\ (_)           \
 \     \ 666 Doncaster Rd. Doncaster           \_v~~.~^o~~     \ 
  \     \_______________________________________________________\
   \    /                                                       /
    \  /      Tel: +61(3)9840-4443    Fax: +61(3)9840-2277     /
     \/_______________________________________________________/

-------------------------------------------------------------------------
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Subject: Re: [parisc-linux] a pretty big change
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Ulrich,

I apologize for suggesting you consider the
r1 value 0xc0112000 by mistake, I meant the r2 value 0xc004a170.
>From the r2 and iaoq values, it looks like create_buffers():

create_buffers+4C:              STW             r0,-116(r30)
                LDI             4096,r4
                SUB             r4,r8,r4
                COMIB,>         0,r4,create_buffers+0x00a0
                LDI             0,r3
                ZDEPI           -1,31,16,r5
                BL              get_unused_buffer_head,r2
                OR              r9,r0,r26
                MOVB,=,N        r28,r26,create_buffers+0x00a8	***** %r2
                STW             r3,20(r26)

Just called get_unused_buffer_head, which died on the indicated line:

get_unused_buffer_head+4C:      ADDIL           L%0x73000,r27
                LDO             -1(r20),r20 	; nr_unused_buffer_heads--
                LDW             232(r1),r3	; r3 = bh
                STW             r20,264(r4)	; nr_unused_buffer_heads--
                OR              r3,r0,r28	; return value = r3
                LDW             28(r3),r19	*** died here
                B               get_unused_buffer_head+0x00e0
                STW             r19,232(r1)

Since %r3 is zero at this moment, we die.  I think we are dying trying
to execute 'unused_list = bh->b_next_free;' in get_unused_buffer_head()
with bh = 0.  No idea why.

	-P


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> 
> 
> Ulrich,
> 
> I apologize for suggesting you consider the
> r1 value 0xc0112000 by mistake, I meant the r2 value 0xc004a170.
> >From the r2 and iaoq values, it looks like create_buffers():
> 
> create_buffers+4C:              STW             r0,-116(r30)
>                 LDI             4096,r4
>                 SUB             r4,r8,r4
>                 COMIB,>         0,r4,create_buffers+0x00a0
>                 LDI             0,r3
>                 ZDEPI           -1,31,16,r5
>                 BL              get_unused_buffer_head,r2
>                 OR              r9,r0,r26
>                 MOVB,=,N        r28,r26,create_buffers+0x00a8	***** %r2
>                 STW             r3,20(r26)
> 
> Just called get_unused_buffer_head, which died on the indicated line:
> 
> get_unused_buffer_head+4C:      ADDIL           L%0x73000,r27
>                 LDO             -1(r20),r20 	; nr_unused_buffer_heads--
>                 LDW             232(r1),r3	; r3 = bh
>                 STW             r20,264(r4)	; nr_unused_buffer_heads--
>                 OR              r3,r0,r28	; return value = r3
>                 LDW             28(r3),r19	*** died here
>                 B               get_unused_buffer_head+0x00e0
>                 STW             r19,232(r1)
> 
> Since %r3 is zero at this moment, we die.  I think we are dying trying
> to execute 'unused_list = bh->b_next_free;' in get_unused_buffer_head()
> with bh = 0.  No idea why.

See my mail to the list on Nov. 30, "Re: [parisc-linux] Progress - Update".  xchg has clobbered unused_list.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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=============================================
PA-RISC/Linux Weekly News - December 10, 1999
=============================================
  http://www.thepuffingroup.com/parisc/
  vol 1, iss 4 

This Week:
   News & Announcements
   This Week's CVS Activity
   State of the Port Summary
 

====================
News & Announcements
====================
------------------------------------------------
Photos of the Birth of PA-RISC/Linux Discovered!
------------------------------------------------
Once thought lost in the mists of time, a photo revealing the origins of
PA-RISC/Linux have been uncovered by a crack team of
cyberarchaeologists!

This rare and exciting photograph (taken by the forward-thinking
historian, Zach Brown) is now on public display at:

http://www.zabbo.net/showcase98/mallfood.jpg

The photo reveals the attendees of the historic occassion: Jes
Sorensen, Phil Schwan, the back of Travis Melhiser, Chris Beard
(hiding), Alex deVries, and Martin Petersen.  The photo was taken mere
moments after the discussion in which this team of developers realized
that PA-RISC was pretty much the only architecture to which Linux hadn't
yet been ported.  Catering services were provided by a lacklustre
foodcourt in a to-remain-unnamed mall somewhere in Atlanta (during the
Atlanta Linux Showcase, 1998).

-----------
Move to 2.3 
-----------
In order to advance the PA-RISC/Linux port, the development team is
working to move to a more active development tree by merging the current
tree with Linus' 2.3 tree.  Philipp Rumpf and Matthew Wilcox are the
leads for this section of the project.


========================
This Week's CVS Activity
========================

John David Anglin and Paul Bame worked on the command linker, SOM, and
real-mode changes.

The bootable image creation has been modified.

Philip I. Schwan made fixes to the CVS tree so that the revision history
isn't lost during Alex deVries' gsc-to-gecko transition.

Grant Grundler further optimized the build process.

Paul Bame added debug messages to the TLB handler, as well as made
changes so that real mode code is seperately linked into the kernel.


=========================
State of the Port Summary
=========================

Kernel: 
     based on 2.2.13

Supported Machines: 
     most of the A180c, parts of 712 Gecko and 715 workstations
     and portions of 2.0 machines

Supported Hardware: 
     SCSI, Lan and PS/2 on Lasi I/O controller, Dino PCI
     Tulip ethernet

Project Page: 
     http://www.thepuffingroup.com/parisc/

Latest Workable Image:
     ftp://puffin.external.hp.com/pub/parisc/linux-2.2.13.gz

Running PA-RISC/Linux HOWTO:
     http://thepuffingroup.com/parisc/recipe.html






From - Thu Nov 08 21:11:27 2018
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From: Jerry Huck <jerry_huck@hp.com>
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Subject: Re: [parisc-linux] /usr/conf/machine header files
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Xref: news.gmane.org gmane.linux.ports.parisc:6597

> From parisc-linux-request@thepuffingroup.com Wed Dec  8 21:05:46 PST 1999
> Date: Thu, 9 Dec 1999 05:06:34 +0100
> From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
> To: Grant Grundler <grundler@cup.hp.com>
> Cc: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>,
>         parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] /usr/conf/machine header files

> > > PA2.0 port:  64-bit virtual addresses are 42 bits per quadrant only and
> > > start at the smallest address in the quadrant - so unlike alpha where the
> > > addresses are "sign-extended".
> > Actually, HP-UX does sign extend I/O addresses. I'm not sure
> 
> That's physical addresses though, so we really don't care, do we ?

FYI,  More precisely, PA2.0 expects to be programmed with "F" extended
62-bit physical addresses.  The upper 2 bits are always ignored.  The
"F" extension is preserved in all processor resources independent of
the implemented addess space.  For example, a data reference to the
physical address 0x3FFF FFFF FFFF 0000 (PSW.d == 0) that took a TLB
miss would include the unimplemented bits in the ISR.

The one exception is the LPA instruction.  It is only defined to the
width of the implemented physical address space.  To convert that
address to a generic 64-bit pointer use:

    trialphysaddr = LPA(va);
    if( trailphysaddr == 0 ) /* do something else */
    physaddrwidth = PDC_MODEL.returnCPU_ID.ret[1] + 40;
    if( (trialphysaddr >> physaddrwidth) == 0xF) {
        /* need to F extend and decide what to put
           into the upper 2 bits */
        <...>
    } else
        physaddr = trialphysaddr;

The upper bits of the LPA result beyond the implemented boundary are
guaranteed to be zero.

All this discussion is only relevant to 2.0 processors running
the kernel in wide mode.

> > if this is a feature of HP-UX or something in the HW makes it
> > easier to do it this way...anyone know?

F extension reflects the architecture separation of I/O (uncached)
addresses from memory (cached) addresses.  The processor makes many
assumptions and address space is assigned to reflect this
architecture.  By allocating memory address space up from 0, and I/O
address space down from 0x3fff ffff ffff ffff, then all code is
independent of the implemented address space size.  I imagine other
approaches can do this but it works nicely for PA.

> > Secondly, don't make assumptions about how many bits are used in
> > a virtual or physical addresses unless it's processor specific code.
> > (eg TLB handler or trap handler or hpmc handler). I know the number
> > of physical bits supported by the processor is going to increase
> > from 40-bits (runway).
> 
> physical addresses you are right about;  we really should use an unsigned
> long for those and never expect them to be less than 64 bits in length.
> 
> virtual addresses, unfortunately, aren't as simple:  The 32 LSBs of the
> space identifier get ORed into the 32 MSBs of the virtual address, so we
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
More precisely: "into the upper 30 bits of the offset".  The upper two
space select bits are not included in the global virtual address.

> are limited to 2+(62-virtual_address_bits_used) effective bits for space
> identifiers (on PA2.0 CPUs with 32 bit space registers).  As we want to
> use at least one space identifier per process, actually using only 42
> bits of the virtual address gives us 22 bits of space identifiers - or
> 1 M processes even if we use 4 space identifiers per process.

Yes, and this division between space bits and offset bits are
flexible.  You could define a large number (say 2^28) spaces for
objects that won't be greater than 2^32 bytes in size.  ie. All 32-bit
applications and the 64-bit application's text segments.  Allocate the
remainder of the spaces as you indicate.  Another possibility is
consider having one 2^60 sized space for the OS and all straight
forwardly shared objects.  You get the following assignment of for
32-bit wide space IDs:
   0000 0000:   one 2^60 byte in size object
   1xxx xxxx:   2^28 in count 2^32 byte in size objects
   2xxx x000:   2^16 in count 2^44-byte in size objects
   3xxx x000:   2^16 in count 2^44-byte in size objects
   ...

You get the idea.
Jerry


From - Thu Nov 08 21:11:27 2018
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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] /usr/conf/machine header files
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> FYI,  More precisely, PA2.0 expects to be programmed with "F" extended
> 62-bit physical addresses.  The upper 2 bits are always ignored.  The

The architecture documentation is quite explicit in that the 2 msbs get
ignored in the _virtual_ address offset generation only.  Actual CPUs
are quite likely to always ignore them, though.

> "F" extension is preserved in all processor resources independent of
> the implemented addess space.  For example, a data reference to the
> physical address 0x3FFF FFFF FFFF 0000 (PSW.d == 0) that took a TLB
> miss would include the unimplemented bits in the ISR.

How can you take a (Data, I assume) TLB miss with the PSW's D bit == 0 ?

> The one exception is the LPA instruction.  It is only defined to the
> width of the implemented physical address space.  To convert that
> address to a generic 64-bit pointer use:
> 
>     trialphysaddr = LPA(va);
>     if( trailphysaddr == 0 ) /* do something else */
>     physaddrwidth = PDC_MODEL.returnCPU_ID.ret[1] + 40;
>     if( (trialphysaddr >> physaddrwidth) == 0xF) {
>         /* need to F extend and decide what to put
>            into the upper 2 bits */
>         <...>
>     } else
>         physaddr = trialphysaddr;
> 
> The upper bits of the LPA result beyond the implemented boundary are
> guaranteed to be zero.

Why would we want to use LPA anyway ?

> > > if this is a feature of HP-UX or something in the HW makes it
> > > easier to do it this way...anyone know?
> 
> F extension reflects the architecture separation of I/O (uncached)
> addresses from memory (cached) addresses.  The processor makes many
> assumptions and address space is assigned to reflect this
> architecture.  By allocating memory address space up from 0, and I/O
> address space down from 0x3fff ffff ffff ffff, then all code is
> independent of the implemented address space size.  I imagine other
> approaches can do this but it works nicely for PA.

That's just not what the documentation says, and I propose we follow
it by simply using physical addresses 0xfXXX XXXX XXXX XXXX when
referring to IO space.

> > > Secondly, don't make assumptions about how many bits are used in
> > > a virtual or physical addresses unless it's processor specific code.
> > > (eg TLB handler or trap handler or hpmc handler). I know the number
> > > of physical bits supported by the processor is going to increase
> > > from 40-bits (runway).
> > 
> > physical addresses you are right about;  we really should use an unsigned
> > long for those and never expect them to be less than 64 bits in length.
> > 
> > virtual addresses, unfortunately, aren't as simple:  The 32 LSBs of the
> > space identifier get ORed into the 32 MSBs of the virtual address, so we
>                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> More precisely: "into the upper 30 bits of the offset".  The upper two
> space select bits are not included in the global virtual address.

Right, thanks for the clarification.

> objects that won't be greater than 2^32 bytes in size.  ie. All 32-bit
> applications and the 64-bit application's text segments.  Allocate the
> remainder of the spaces as you indicate.  Another possibility is
> consider having one 2^60 sized space for the OS and all straight
> forwardly shared objects.  You get the following assignment of for
> 32-bit wide space IDs:
>    0000 0000:   one 2^60 byte in size object
>    1xxx xxxx:   2^28 in count 2^32 byte in size objects
>    2xxx x000:   2^16 in count 2^44-byte in size objects
>    3xxx x000:   2^16 in count 2^44-byte in size objects
>    ...

Indeed I didn't think about having spaces of different sizes before, and
it definitely makes sense to have one 2^62 byte space to map physical
memory / I/O with.

	Philipp Rumpf


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From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] txn_alloc_irq() change
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> Philipp,
> The *service* is not bus specific. The details (ie parameters) are.

Yes, I was wrong about that.  It really is not bus specific.

> Please seperate interfaces from implementations.
> You claimed early on you would do that.

And I don't see how having the interface be per-bus (to sort the details
out) and the implementation (for now) be trivial would violate that.

> Ok. I need to lookup and contact NCR/Symbios SCSI, ATM, and GigE
> driver authors and pester them one this topic.

Just as a matter of interest, which GigE chip are you talking about ?
I looked at the Alteon docs and that chip (which is the only one I
saw used in a parisc box so far) seems not to support TBIs (with the
standard firmware).  If you end up using non-standard firmware anyway,
it is quite likely you can support standard PCI 2.2 TBIs (if they are
defined).  Furthermore the typical interrupt load is quite low with
the current Linux driver.

For the SCSI chips I am pretty sure the interrupt load won't be worth
big hacks.

> > If you want to keep the function parisc-specific and not exported to drivers
> > (just to the bus-specific wrappers), it could be called "cca1a78e0" without
> > anyone getting too upset about it.
> 
> Really?
> As Alex would say: "I don't believe you".

The point I wanted to make is if the function is used in three places, all
of them parisc-specific, the name can be bad and nobody cares.  If it used
in lots of drivers in drivers/*, the name should be easy to remember and
the function should be abstracted.

> > > This is wrong. Symbios SCSI, ATM, and Gigabit Ethernet Drivers could
> > > all *directly* use this service. All of those devices are capable of
> > > mastering a "Message Signalled Interrupt" instead of yanking an IRQ line.
> > 
> > And why would the driver be concerned with it?

I was under the impression you used "Message Signalled Interrupt" to refer
to a standards-compliant mechanism.  Sorry.

> > I am not sure how PCI
> > TBIs work, but the way I would hope it works is the PCI bus initialization
> > code assigns address/data pairs to those devices that support TBIs and
> > puts the corresponding irq into the pci_dev structure.  That way, we're
> > down to one line of code that calls txn_alloc_irq.
> 
> I know how they work. 

> You need to do more homework before "hoping" much.

Erm, and how exactly would you go about it ?  I don't have the PCI standard,
I am paying for downloading hardware docs, the one I did look at (Acenic)
doesn't support TBIs.

What I hoped was the PCI designers made TBIs a standard feature which would
make it usable - they didn't, so far, so we're talking about device-specific
hacks here.

> And pci_dev structure only has room for the virtual IRQ. That may change
> for PCI 2.2 but I want to support PCI 2.1 compliant devices as well.

How many are there, really, and is it really worth it for all of them ?

> More importantly, not all PCI devices discovered can or will want
> to directly master their own interrupt transaction.  I.e. assigning
> CPU/EIR bits to every serial port card is a waste of resources.

This can be worked around with modules and reconfiguration.  Anyway let's
first run out of IRQs and then look at how we can avoid it.

> > For those PCI devices that don't use the standard configuration mechanism
> > to do TBIs, if they should turn out to be worth it, you would have to do
> > stuff in the actual device driver, but I don't think there are many devices
> > to which this applies.

> There is no "standard configuration mechanism" for TBI's.
> Not until PCI 2.2 becomes more prevalent. SCSI, ATM, and GiGE
> PCI devices I'm aware are only PCI 2.1 compliant today.

So all we can do today is brute hacks.

> You have it backwards: the PCI device driver needs to query the
> platform if it supports TXN services and then program the HW accordingly.

So it really doesn't fit into any decent bus scheme.  I think an important
point about well-designed busses is resource allocation isn't handled by
the device driver but by the bus driver.  I hope PCI will allow the way
interrupts are delivered to be changed as transparently to the device
driver as right now the IRQ number is.

> PCI 2.2 only defines how the driver can communicate the devices ability
> to master "Message Signalled Interrupts". It doesn't (and shouldn't) say
> anything about how the OS interrupt support interacts with the device
> driver.

The "doesn't" part I don't know about, and we'll see whether the PCI designers
were indeed stupid enough to require the device driver to handle resource
allocation.

The "shouldn't" part I disagree with.

> > The public Linux/PA-RISC tree is PA1.1 only right now, and I dare say we

PA 2.0 in narrow mode as well.  We don't have more than 32 usable EIMs
for that case though.

> > don't care about systems with more than 31 IRQ-generating devices.
> 
> Alex: Can you address this?
> 
> I can't speak for The Puffin Group. But inside HP, I, and the people
> who pay my salary are very interested in PA 2.0 boxes which can have
> more than 31 IRQs.

We're not talking about boxes that have hardware support for > 32 IRQs.

We're talking about boxes which actually _have to use_ more than 32 EIR
bits.  For example, the A class uses 3 EIR bits in the configuration I
have here (Lasi, Dino, Interval Timer).  The 712 might use 2 or 3 (I
am not sure whether ARTIST generates IRQs).  The 715 uses 2 or 3 (I
don't know about the graphics).

According to HP's product brochure, the V2500 supports 24 PCI I/O cards,
which would leave 6 (we need one for IPIs and one for the interval timer)
EIR bits for internal devices.

Which boxes are _you_ talking about ?

> Most people first ask does parisc-linux run on
> <something-with-PA20>-class. So despite the official charter,
> PA 2.0 is happening on/with the same tree because of interest.

Note, again, that restricting ourselves to 32 EIR bits does not mean we won't
support boxes that supply 64 EIR bits in hardware.

> > I don't know about the IA64 tree and any non-public Linux/PA-RISC trees,
> > but it was my impression those have their own mailing-lists and changes
> > to them need not be discussed here.
> I disgree.  This is an inclusive forum. If people want to work
> on support an 827s or T600s, they are welcome to do it. It's my
> choice to decline to help (and I definitely will not help). 

Sure.  If people want to support an actually existing machine that needs to
use more than 31 EIR bits, they are welcome.

> > > The current interface only works for a subset of all parisc platforms.
> > Yeah, the subset with <= 31 devices.
> I'm trying to get past that limitation.

Is it a limitation ?  Are there actually machines out there which need more
than 31 EIR bits ?  Do these machines look at all like it is high-priority
to support them under linux/parisc ?

> > How ?
> > 
> > All the allocation is handled in txn_alloc_irq - it returns a virtual irq
> > that can be resolved to an address/data pair lateron.  If we want to allocate
> > data (eg the eim bit index right now), it's done in txn_alloc_irq.  If we
> > want to allocate addresses (eg the future txn_alloc_irq returning the right
> > CPU's EIR), we do it in txn_alloc_irq.
> 
> Here's an example: Change the interface to allow the driver to call
> txn_alloc_addr() to get a *different* CPU - same virtual IRQ.  And
> ditto for txn_alloc_data(). Then txn_alloc_irq() would only
> be used to hand out "handles" (ie Virtual IRQs).

That example just doesn't make sense to me.  If the driver wants to
switch to another IRQ, it has to call txn_alloc_irq() anyway - you
can't assume the implementation lets you keep a virtual IRQ (which
very well might not be virtual at all, but the actual HW IRQ) even
though you reallocate the address/data.

I still can't think of any situation in which it would make sense to
do call only one or two of the txn_alloc_* functions.

As for actually doing allocating in txn_alloc_{data,addr}, that would
require drivers to get even more complex in their initialization as
they now need to handle txn_alloc_addr failing and txn_alloc_irq
succeeding.

Is there a single case where it would make sense for an implementation
to do allocation in txn_alloc_{data,addr} ?

Also, consider the case where you want to get an IRQ on a certain CPU.
Do you want to pass the CPU number to _all_ of the txn_alloc_* functions ?

If so, why ?

> Why would a driver want to do that? Because some outside module
> is smarter, knows more about the resources available, and told the
> device driver to make the request and reprogram it's HW.

It can change its virtual irq as well, and actually has to be to be
independent of implementation details.

> > Actually, what you should think about is merging the three functions -
> > virtual irq, transaction address and transaction data don't make sense on
> > their own, so you almost always end up doing
> > 
> > 	tmp1 = txn_alloc_irq(...);
> > 	tmp2 = txn_alloc_addr(irq);
> > 	tmp3 = txn_alloc_data(irq);
> > 
> > which seems unnecessarily verbose.
> 
> See above example.

You would still need to call all functions.

> IMHO, the three functions interface is more flexible and matches

It isn't.  If you change anything about your IRQ, you have to call
all three functions again (as an implementation _might_ be like the
current implementation which doesn't have arbitrary virtual IRQ <->
physical IRQ relations).

	Philipp


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> 
> > That happens pretty frequently to me but I've not tracked down why
> > it happens.  Did you try holding the TOC button in for several seconds?
> > On some workstations I've been told that generates a hard reset.
> 
> TOC results in (providing that the checksum passes) transfer of control
> to a routine pointed at from page 0.  If something is trashing that, and
> the checksum'ed length is set to 0, then you'll branch off into the ozone.
> 
> If the checksum fails, then you get the PDC default of rebooting.
> 
> Don't know if that's your problem, but it's probably worth checking into
> whether something is trashing physical address 8 (TOC vector - 0xc is the
> length of the checksum.)

I believe that I have located the cause of the problem.  The real mode
code in the kernel startup used the stack pointer passed from the system
loader.  The initial stack pointer passed by the hpux loader is 0.
This caused some items in PAGE0 to be trashed, although it is not clear
that the TOC vector itself was being trashed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Date: Sat, 11 Dec 1999 14:51:07 +0100
> From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
> To: huck@cup.hp.com
> Cc: parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] /usr/conf/machine header files

> > FYI,  More precisely, PA2.0 expects to be programmed with "F" extended
> > 62-bit physical addresses.  The upper 2 bits are always ignored.  The
           ^^^^^^^^ should be "absolute"

> The architecture documentation is quite explicit in that the 2 msbs get
> ignored in the _virtual_ address offset generation only.  Actual CPUs
> are quite likely to always ignore them, though.

My statement was wrong.  I forgot about our subtle distinction between
absolute and physical addresses and the contradictions in the 2.0 book.

Readers can skip the remainder of this note if your not interested in
address definitions.

The 1.x books made physical and absolute addresses equivalent.  The 2.0
architecture made a significant distinction between absolute and physical
addresses but did not properly document the difference.

Page 3-1, section "Physical and Absolute addressing", correctly defines
the two terms.  Basically, an absolute address is only 62-bits in
width and the upper 2 bits must be ignored.  Physical addresses are 64-bits
wide.  Page H-10 correctly describes the mapping between the two addresses.

The address you form for data or instruction addresses when PSR.D or
PSR.C (respectively) is zero is an ABSOLUTE address.  The LDWA and
STWA instructions specify an ABSOLUTE address.  This is consistently
correct in the book.

Inconsistently specified is the output of the TLB.  TLBs translate
virtual addresses to PHYSICAL addresses (full 64-bits).  This is
incorrect in many places.

Also, the discussion on page 3-8 on "Absolute Addresses" is confusing
since the upper 2 bits of the "offset" (a 64-bit quantity) is ignored
and all the memory vs. I/O distinction is done using the upper 4 bits
of the 62-bit absolute address.

So, you can still count on the interesting equivalent mapping that
is possible between absolute addresses and virtual addresses.

> > "F" extension is preserved in all processor resources independent of
> > the implemented addess space.  For example, a data reference to the
> > physical address 0x3FFF FFFF FFFF 0000 (PSW.d == 0) that took a TLB
> > miss would include the unimplemented bits in the ISR.
> 
> How can you take a (Data, I assume) TLB miss with the PSW's D bit == 0 ?

My mistake - bad example and incorrect terminology.  How about:

For example, a data reference to the absolute address 
0x3FFF FFFF FFFF 0000 (PSW.d == 0) that took an "assist emulation trap"
would include the unimplemented bits in the ISR.

> > The one exception is the LPA instruction.  It is only defined to the
> > width of the implemented physical address space.  To convert that
> > address to a generic 64-bit pointer use:
> > 
> >     trialphysaddr = LPA(va);
> >     if( trailphysaddr == 0 ) /* do something else */
> >     physaddrwidth = PDC_MODEL.returnCPU_ID.ret[1] + 40;
> >     if( (trialphysaddr >> physaddrwidth) == 0xF) {
> >         /* need to F extend and decide what to put
> >            into the upper 2 bits */
> >         <...>
> >     } else
> >         physaddr = trialphysaddr;
> > 
> > The upper bits of the LPA result beyond the implemented boundary are
> > guaranteed to be zero.
> 
> Why would we want to use LPA anyway ?

I don't know how Linux works, but it is a fast way to get the physical
address for DMA (say out of a virtually mapped buffer pool).  We have
used physically indexed tables that low-level handlers can quickly
pick up some information for fault handling (say some kind of page
promotion information or other things that don't fit in the TLB
entry).
> 
> > > > if this is a feature of HP-UX or something in the HW makes it
> > > > easier to do it this way...anyone know?
> > 
> > F extension reflects the architecture separation of I/O (uncached)
> > addresses from memory (cached) addresses.  The processor makes many
> > assumptions and address space is assigned to reflect this
> > architecture.  By allocating memory address space up from 0, and I/O
> > address space down from 0x3fff ffff ffff ffff, then all code is
> > independent of the implemented address space size.  I imagine other
> > approaches can do this but it works nicely for PA.
> 
> That's just not what the documentation says, and I propose we follow
> it by simply using physical addresses 0xfXXX XXXX XXXX XXXX when
> referring to IO space.

The documentation is a little inconsistent.  I was referring to
absolute addresses.  Depending on how you want to manage the possible
equivalent mappings, those upper 2 bits of absolute addresses will get
set to some interesting values.  Addresses used by I/O devices are
physical addresses and will definitely start with 0xF.

Jerry

...stuff deleted...

> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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Subject: [parisc-linux] Puffin sells out!
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Reported in the Wall Street Journal Dec. 14, 1999, see
<http://www.linuxcare.com/company/press/1999/12-14-99_puffin.epl>.  It was
stated that the Puffin Group, a small group of Linux buffs who have been
helping Hewlett-Packard Co., is being purchased by Linuxcare Inc.  Alex
Devries and Christopher Beard will become directors within Linuxcare's
Professional Services Business Unit.

Is this the end?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] Puffin sells out!
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Xref: news.gmane.org gmane.linux.ports.parisc:6603

> Reported in the Wall Street Journal Dec. 14, 1999, see
> <http://www.linuxcare.com/company/press/1999/12-14-99_puffin.epl>.  It was
> stated that the Puffin Group, a small group of Linux buffs who have been
> helping Hewlett-Packard Co., is being purchased by Linuxcare Inc.  Alex
> Devries and Christopher Beard will become directors within Linuxcare's
> Professional Services Business Unit.
> 
> Is this the end?

That depends what the Puffingroup and HP folks want to do with the port. If
its carrying on as an open public port and HP are willing to open all 
their document access and like to other folks I dont see a problem. If they
work tightly with LC/Puffingroup and trumpet them as their HP Linux porting
heroes then yes its going to be hard for anyone else to justify working for
them.

I doubt HP are dumb somehow. We'll see. Even if HP and LC do most of the
running in their own private little world it doesnt change things like merging
with the main kernel tree and working with folks to sort out interfaces and 
the like.

Alan

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From: PG40 KCLin <KCLIN@winbond.com.tw>
To: "'hppa-linux@thepuffingroup.com'" <hppa-linux@thepuffingroup.com>
Subject: RE: [hppa-linux] New cross compiling RPMs
Date: Thu, 11 Mar 1999 10:12:42 +0800
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Hi all,

About the new cross compiler, does it support floating-point emulation for
PA-RISC 1.1 architecture level 0? In the cross tool, does it support the
source level debugger based on Windows? or gdb only?

your reply will be appreciated. Thanks!

Best regards,
James K.C. Lin,
Winbond Electronics Corp.
Taiwan. R.O.C.

> ----------
> From: 	Mike Shaver[SMTP:shaver@netscape.com]
> Sent: 	Wednesday, March 10, 1999 PM 10:11
> To: 	hppa-linux@thepuffingroup.com
> Subject: 	Re: [hppa-linux] New cross compiling RPMs
> 
> Phil Schwan wrote:
> > 
> > Mike Shaver just rebuilt Alex's cross compiling RPMs against glibc 2.0
> > rather than 2.1, and they're now available on sod:
> > 
> >
> ftp://sod.res.cmu.edu/pub/parisc/tools/egcs-x-hppa-linux-1.1.1-4.i386.rpm
> > ftp://sod.res.cmu.edu/pub/parisc/tools/binutils-x-hppa-2.9.1-4.i386.rpm
> > 
> > Note that the revision number is still 4, but these are in fact new.
> 
> And hey -- they even work (for me)!
> 
> [shaver@loonie /tmp]$ cat test.c
> int main () { return 0; }
> [shaver@loonie /tmp]$ hppa-linux-gcc -c test.c
> [shaver@loonie /tmp]$ file test.o
> test.o: ELF 32-bit MSB relocatable, PA-RISC, version 1
> [shaver@loonie /tmp]$
> 
> Mike
> 
> -- 
> 169530.70 140316.26
> 
> -------------------------------------------------------------------------
> To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

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Xref: news.gmane.org gmane.linux.ports.parisc:6604

I'm interested in cross-compiling as well... we've got a 735/125 running
only MkLinux, no HPUX, and I can rarely get _anything_ to build right on
it even if I don't mind the slowness.

But we do have some nice fast x86 Linux boxes. I tried to compile the 
binutils out of CVS on one of them, but it crapped out with complaints
about missing SOM stuff, looks like:

gcc -g -O2 -o size size.o bucomm.o version.o filemode.o ../bfd/.libs/libbfd.a ../libiberty/libiberty.a
../bfd/.libs/libbfd.a(targets.o): In function `find_target':
/usr/local/gizmo/brion/src/parisc/binutils-build/bfd/../../
binutils/bfd/targets.c:885: undefined reference to `som_vec'
/usr/local/gizmo/brion/src/parisc/binutils-build/bfd/../../
binutils/bfd/targets.c:885: undefined reference to `som_vec'

Won't be easy to compile a kernel without binutils... Will this have to
wait until the SOM linker is finished, or can I work around that somehow
in the meantime?

-- brion vibber (brion@pobox.com)


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Subject: Re: [parisc-linux] Puffin sells out!
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John David Anglin wrote:
> Is this the end?

Oh, get real.

The Puffin Group will continue to do PA-RISC Linux, but now we'll be
able to put more resources behind it than we've been able to in the
past. It will remain an open source project and will operate as it has. 
The relationship with HP has only been strengthened.

You really should talk to us before coming to such sombre conclusions.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: [parisc-linux] HP releasing docs...
Date: Wed, 15 Dec 1999 03:25:31 -0500
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Alan Cox wrote:
> If
> its carrying on as an open public port and HP are willing to open all
> their document access and like to other folks I dont see a problem. 

Having HP opening up documents is probably more difficult than most of
you realize, and in the same way that other hardware vendors can't
release documents on portions of hardware for fear of releasing
competitive information, HP is limited as well.  Expecting HP to open up
*all* documentation is unrealistic.

Also, releasing the documentation isn't just pressing the magic button
labelled "Release Publicly" in red.  The docs have to be found,
screened, edited, reformatted etc. 

Ideally, though, developers will have access to all the hardware they're
porting to. 

What's second best is to be able to do development of certain portions
under NDA.  This can be used when the docs for the hardware *can't* be
released, or when they're not ready to be released.  Advanced viewing
helps out a lot.

The Puffin Group's set up to do this, although we haven't generated any
useable code in this situation yet.  Signing such NDAs has helped us
with quite a few other ways though, in terms of planning.  The open
source linker would never have happened, for instance.

NDA's aren't quite the evil they're made out to be, having them has
really given us a better insight into how to do parisc-linux.

- Alex
-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Subject: Re: [parisc-linux] HP releasing docs...
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To: adevries@thepuffingroup.com (Alex deVries)
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Xref: news.gmane.org gmane.linux.ports.parisc:6607

> Also, releasing the documentation isn't just pressing the magic button
> labelled "Release Publicly" in red.  The docs have to be found,
> screened, edited, reformatted etc. 

I know that.

> Ideally, though, developers will have access to all the hardware they're
> porting to. 

Irrespective of who they work for ?

> What's second best is to be able to do development of certain portions
> under NDA.  This can be used when the docs for the hardware *can't* be
> released, or when they're not ready to be released.  Advanced viewing
> helps out a lot.

Yeah


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Subject: Re: [parisc-linux] Puffin sells out!
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Xref: news.gmane.org gmane.linux.ports.parisc:6608

> John David Anglin wrote:
> > Is this the end?
> 
> Oh, get real.

It was a question not a conclusion.  I was very surprised to learn about
the sale of the Puffin Group in the paper.  The sale clearly had the
potential to change the dynamics of the PA-RISC port.

As you are aware, the linux market is "red-hot" and investors are plowing
mega-bucks into linux companies.  For example, Linuxcare recieved $32.5
million (U.S.) in funding from Dell, Sun, Motorola and Oracle.  HP wasn't
on the list.

It is certain that the investors pouring money into linux companies are
going to demand a return on their investment.  There will be strong pressure
within these companies to control and close the development of linux.
Standards committees will be formed and this will be a further method by
which participating companies will enhance their position in the market place.

If you look at the board of Linicare, you will see that it is made up
mainly of business people, not linux hackers.  How the linux market will
evolve is hard to say but the current consolidation suggests that venture
capitalists are attempting to gain control of large segment of it.

> The Puffin Group will continue to do PA-RISC Linux, but now we'll be
> able to put more resources behind it than we've been able to in the
> past. It will remain an open source project and will operate as it has. 
> The relationship with HP has only been strengthened.

That's very good news.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] Puffin sells out!
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Xref: news.gmane.org gmane.linux.ports.parisc:6609

At 09:53 PM 12/14/99 -0500, some Puffin wrote:

[doomsday scenario snipped]

>> Is this the end?
>
>For parisc-linux, yes.  [snip]

>While employees are not forbidden from continuing to work on the port,
>they are actively encouraged to work on proprietary puffin products in
>their spare time which we shall be making a press release about shortly.

    OTTOWA, Canada (AP) - In a surprise strategy, The Puffin Group
    announced in the wake of their takeover today by Linuxcare, Inc.
    a new policy "encouraging" their workers to work for free, reminiscent
    of the downsizing trend of the 1980s.  Business analysts are confused 
    as to the profitability and viability of such policy.  "Asking your
    employees to give up their spare time to put dollars in the pockets
    of the shareholders seems to be a stretch", said Silicon Valley
    analyst...[etc.]

>The mailing list will be deactivated shortly.  We thank you for your
>participation.

LOL!

>This email may contain confidential and privileged material for the sole
>use of the intended recipient. Any review or distribution by others is
>strictly prohibited.  If you are not the intended recipient please contact
>the sender and delete all copies.

Oops.

>To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.

Should we do this now or just wait for its deactivation. :)

jack
j-perdue@tamu.edu




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From: Tomasz Korycki <tkorycki@sprint.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Puffin sells out!
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Xref: news.gmane.org gmane.linux.ports.parisc:6610

        This is what Matthew wrote:

>> Is this the end?
>
>For parisc-linux, yes.  We will be supporting the aforementioned
>database products on HPUX and Solaris.  We're looking to bring in some
>IRIX expertise soon and possibly add Oracle and MS-SQL support too.
>While employees are not forbidden from continuing to work on the port,
>they are actively encouraged to work on proprietary puffin products in
>their spare time which we shall be making a press release about shortly.
>
>The mailing list will be deactivated shortly.  We thank you for your
>participation.
>

        And this is Alex's take:

>John David Anglin wrote:
>> Is this the end?
>
>Oh, get real.
>
>The Puffin Group will continue to do PA-RISC Linux, but now we'll be
>able to put more resources behind it than we've been able to in the
>past. It will remain an open source project and will operate as it has. 
>The relationship with HP has only been strengthened.
>
>You really should talk to us before coming to such sombre conclusions.
>
>- Alex
>

      Am I humour-impaired, or do I sense something smelly here? And if the
former, could we have a clarification? OR, at least, could I? Please?!


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From: Matthew Wilcox <willy@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Puffin sells out!
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Xref: news.gmane.org gmane.linux.ports.parisc:6611

On Tue, Dec 14, 1999 at 09:53:58PM -0500, Matthew Wilcox wrote:
> On Tue, Dec 14, 1999 at 08:22:19PM -0500, John David Anglin wrote:
> > Reported in the Wall Street Journal Dec. 14, 1999, see
> > <http://www.linuxcare.com/company/press/1999/12-14-99_puffin.epl>.  It was
> > stated that the Puffin Group, a small group of Linux buffs who have been
> > helping Hewlett-Packard Co., is being purchased by Linuxcare Inc.  Alex
> > Devries and Christopher Beard will become directors within Linuxcare's
> > Professional Services Business Unit.
> 
> That's correct.  The Puffin Group will now be manning the phone lines

[...]

> The mailing list will be deactivated shortly.  We thank you for your
> participation.

I've been asked to tag this sort of message with explicit sarcasm tags in
the future.  I need to remember the difference between humor and humour.

P.S.  Jack, that sounds like an innovative business model, i'm sure your
IPO will set new records :-)


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>I've been asked to tag this sort of message with explicit sarcasm tags in
>the future.  I need to remember the difference between humor and humour.
>

OK. Uffff.... I guess I really should not underestimate the importance of
sleep. Even with SP2 in fron of me... Yeah, it will wait. Go for the sack
now. NOW!
. . . . . 


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> On Tue, Dec 14, 1999 at 09:53:58PM -0500, Matthew Wilcox wrote:
> > On Tue, Dec 14, 1999 at 08:22:19PM -0500, John David Anglin wrote:
> > > Reported in the Wall Street Journal Dec. 14, 1999, see
> > > <http://www.linuxcare.com/company/press/1999/12-14-99_puffin.epl>.  It was
> > > stated that the Puffin Group, a small group of Linux buffs who have been
> > > helping Hewlett-Packard Co., is being purchased by Linuxcare Inc.  Alex
> > > Devries and Christopher Beard will become directors within Linuxcare's
> > > Professional Services Business Unit.
> > 
> > That's correct.  The Puffin Group will now be manning the phone lines

Oh, I thought they were going to sell systems to the medical profession.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

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On Thu, 11 Mar 1999, PG40 KCLin wrote:
> About the new cross compiler, does it support floating-point emulation for
> PA-RISC 1.1 architecture level 0? In the cross tool, does it support the
> source level debugger based on Windows? or gdb only?

I'm not actually quite sure about the answer to this question; certainly
their is no native floating point support, although there may be
emulation.

This should be easy enough to test.

For the kernel side of things, which is the most immediate concern, we
don't need floating point yet anyway.

There's currently no working gdb, although that shouln't be too difficult
to straighten out either.  I don't know what you mean by the source level
windows debugger, but I'm interested.

-= Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
HPPA/Linux Porting Team



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On Wed, 15 Dec 1999, Alan Cox wrote:

> > Reported in the Wall Street Journal Dec. 14, 1999, see
> > <http://www.linuxcare.com/company/press/1999/12-14-99_puffin.epl>.  It was
> > stated that the Puffin Group, a small group of Linux buffs who have been
> > helping Hewlett-Packard Co., is being purchased by Linuxcare Inc.  Alex
> > Devries and Christopher Beard will become directors within Linuxcare's
> > Professional Services Business Unit.
> > 
> > Is this the end?
> 
> That depends what the Puffingroup and HP folks want to do with the port. If
> its carrying on as an open public port and HP are willing to open all 
> their document access and like to other folks I dont see a problem. If they
> work tightly with LC/Puffingroup and trumpet them as their HP Linux porting
> heroes then yes its going to be hard for anyone else to justify working for
> them.
> 
> I doubt HP are dumb somehow. We'll see. Even if HP and LC do most of the
> running in their own private little world it doesnt change things like merging
> with the main kernel tree and working with folks to sort out interfaces and 
> the like.
> 
> Alan

>From someone who has watched the PA-Risc port (and might I add, learned a
lot about low level programing issues) I would have to say that it would
be sad to see it go.

>From all appearences HP has a strong interest in porting Linux to the
PA-Risc architecture (at least the 2.0 arch.). If I recall correctly
aren't there some HP employees whom get paid to work on the port (at least
for 2.0). Regardless I've allready heard rumors that the port is dead from
several people whom are quite distanced from the actual port. Hopefully
someone will be smart enough to address and clarify this issue before it
gets displayed on slashdot. (Rumors are generally taken as 'fact' if
displayed on Slashdot for whatever reason...)

In the meantime my 715/50 stares at me longing for linux as HP-UX
10.20 thumps along clumsily...

- Eric Molitor
  Network, Admin is traitor!


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Ok - an HP manager takes the stand - listen up!

This will attempt to talk to all of the comments posted so far....

1.  HP is currently actively funding the effort to port Linux to PA.
    Since I'm the guy who's actually signing the invoices, paychecks
    and the bills, I think I should know.  So, if anyone doubts that
    this is happening, let me know - if you need to see a warm body
    actually checking in code, we'll arrange for that.

2.  HP is trying really hard to balance active involvement with doing
    too much.  This is an Open Source project.  HP's role is to help
    by providing docs, equipment, and resources to the community to do
    the development.  If you don't have what you need, tell me the
    specific details of what you're missing and why you need it.  I'll
    do what I can to get it to you.  If HP tries to do too much, then
    we'll be perceived as taking over the port.  If you think we have
    the wrong balance, speak up, give details and tell us what you
    think we should be doing.

3.  We are actively working on cleaning up docs (ie removing people's
    names, part numbers, product code names and proprietary data).
    It's a complex and involved process that engineers do (in most
    cases) at home, in their spare time.  Again, if there's a specific
    piece of data you need, post a note, we'll get you what you need.

4.  The relationship between HP and The Puffins (LinuxCare) is just
    fine.  We continue to work closely together, and we all feel very
    positive about the Puffin/LinuxCare linkup.  As Alex mentioned,
    because of the linkup, more and better is now possible.

Any questions?  I'll be listening until Friday 5PM MST, then I'll be
on vacation (in my home town of Ottawa of all places) until Jan 4th, 
2000.

Martin

+=====================================================================+
| Martin Fink                 | E-mail: mailto:martin_fink@hp.com     |
| UNIX Development Lab        | Phone:  970-898-7076                  |
| Hewlett-Packard Co.         | FAX:    970-898-2838                  |
| 3404 East Harmony Road      | ===================================== |
| Ft. Collins, CO, USA, 80528 | Web:    http://www.hp.com/            |
+=====================================================================+    


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Some good questions here.  Let's see if I can address some of this....

> Regarding checking in code, that is a good idea.  Jeff Law at Cygnus
> controls the gcc development with an iron hand, trying to 
> ensure that each
> modification is justified and the side effects are understood.  Quite
> a few patches and small fixes haven't made it into the linux 
> CVS because
> no one has this responsibility.  Somebody needs to be in 
> charge.  Cygnus
> uses separate lists for bug discussion, patches, etc.  Paul Bame has
> helped getting some of my stuff in.
> 

I expect that Alex and the Puffin Group to do the source management
and make sure the submissions are sane.  As part of HP's contribution
to the effort, we supply systems and provide administrative assistance 
for the systems used for source management.  At one point, there will be
a merge back to the main kernel tree.  I'm not sure how the "arch"
PA specific stuff will be maintain after that.  Paul works for one
of my managers.

> The community understands that HP has been funding and supporting the
> port.  The big question is the level of support enough?  How important
> is linux to HP's future?  At least two years ago, SGI decided IRIX was
> dying and agressively started to support linux development for their
> machines.  Red Hat currently has a market capitalization on the order
> of $16 billion.  Linuxcare just had a major capital infusion 
> from Dell,
> Sun, Motorola and Oracle.  I can't predict the future but it 
> sure looks
> like the landscape is changing fast.  You know what HP is spending, so
> how does it compare?  Is it enough to ensure that HP remains a player?

I think we have to be careful here, because there are some key 
differences.  There is no question in my mind that Linux is very
important to HP.  However, where SGI made the decision to eventually
replace IRIX with Linux, HP still has full intent to aggressively
support, enhance, and continue development of HP-UX.  HP-UX is still
the #1 UNIX out there and HP is very committed to that customer base.
However, we have customers and potential customers that would like
to see support of Linux from HP.  To that end, HP is investing in
a large number of areas.  That includes Linux on PA, Linux on IA-32,
Linux on IA-64, etc. etc.  Also, don't forget that we have printers
and networking devices and other businesses also investing in Linux.
HP made some very substantial contributions to the Linux/IA-64 port
to get it where it is today.  So, will HP be a major Linux player? -
Absolutely!  If you have any doubt that HP can flex its $42Billion
muscle against Sun, IBM and DELL - just watch!

> 
> Alan Cox correctly stated the concerns of the external community.
> How it is managed is very important.  If the community feels Linuxcare
> is using the community to further its own ends, they won't be 
> happy about
> contributing.  This is what I trying to convey when I originally wrote
> "Puffin sells out!".  The balance with HP isn't particular 
> important as
> long as the external community can contribute as peers.  My 
> sense is the
> external community loves challenge and will endeavour to find the best
> solution possible.  On the otherhand, it is not well 
> organized and there
> are all levels of expertise.
> 
> I like contributing because it is fun and challenging.

All I can say at this point is that, that's what we're trying
to do.  If I took over 90% of the Linux/PA development, it would
be tough for the community to be contributing as peers.  So,
when someone thinks there's a problem - speak up - I am
listening.

> 
> The spare time comment concerns me and again reflects on HP's 
> commitment.
> On the otherhand, the pace of providing documentation probably hasn't
> significantly impacted the pace of code development.  I would guess
> that documentation on graphics adapters will be needed in the 
> near future.
> None of this seems to be available.

Let me clarify.  The real job of the hardware engineers who own most 
of the docs is to do more hardware.  The docs they write are normally
done for internal use and internal partners.  They may reference
information that is proprietary, trade secret, or licensed from other
companies we have as partners.  Their job is not to do Linux, or 
HP-UX, or NT, or any other OS.  But, most of them are really excited
about the work we're doing and giving time from their day and night
jobs to make sure we're successful.  So, not only do you have an HP
commitment with hard dollars behind it, you have the emotional
commitment of engineers at HP (which may in fact be more valuable :)).
The graphics side is also something we're managing and pulling docs
for.  Most of the requests we've received are for our very old
workstations and we have to go and dig-out the docs and find someone
who still remembers the stuff :).  We'll probably be careful with
the brand new stuff.  HP has leadership graphics that no one else
can touch right now.  How we do that is still covered by patent,
copyright and trade secret.  We are working on a number of 
different alternatives to get the community what they need without
giving away the goose.  Again, if you have a specific need, speak
up - we'll get you what we can.

> 
> If you have time while you're in town, give me a call.  Maybe we can
> go for a beer or such.  Possibly, some of the Linuxcare 
> Puffins would like
> to go as well.
> 

Probably not this go-around.  When I'm in town meeting with Alex on
official business, we can probably arrange that.

> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc.ca
> National Research Council of Canada              (613) 
> 990-0752 (FAX: 952-6605)
> 

+=====================================================================+
| Martin Fink                 | E-mail: mailto:martin_fink@hp.com     |
| UNIX Development Lab        | Phone:  970-898-7076                  |
| Hewlett-Packard Co.         | FAX:    970-898-2838                  |
| 3404 East Harmony Road      | ===================================== |
| Ft. Collins, CO, USA, 80528 | Web:    http://www.hp.com/            |
+=====================================================================+    


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Subject: [parisc-linux] Comments on non-equivalent aliasing and PA-RISC (long)
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I would like to comment on the discussion related to equivalent and
non-equivalent aliasing issues on PA-RISC.

In summary, I think the 2.0 and 1.1e3 architecture book is overly
restrictive on aliasing between physical and virtual addresses.  We
are investigating prior designs to ensure that we can restate the
rules to allow transitivity in the equivalent aliasing rules.  We hope
to post updated documentation and a collection of errata to the PA
RISC 2.0 manual in the January timeframe.  (as an aside, I do like the
model where kernel addresses are the same for virtual or physical
accesses; it does get much easier in PA2.0.)

The remainder of this note describes some of the history of PA-RISC on
how we got where we are.  People not interested in virtual memory
aliasing architecture can skip the following.

I've been involved in the PA-RISC architecture development process
since 1983.  The virtual memory model was heavily influenced by the
single-level store work by IBM (in System 3x).  But, that influence
was heavily tempered by hardware designers trying to squeeze it into
very modest LSI.  The big dilemma was the HW interest in having big
virtual-indexed caches to avoid putting the TLB lookup in the critical
path.  There are ways to have big caches and full aliasing support
but it does take effort and reduces performance.

PA-RISC defines a virtual memory model based on global virtual
addresses (GVA).  A virtual address is first transformed into a global
virtual address (via a simple space register lookup and concatenation
for PA1.x) and that address is used to lookup in the TLB.  This allows
a single page table to hold translations for all processes.  A
different mechanism is used to provide protection (protection IDs).  A
specialization of this approach is address space IDs used in some
other RISC architectures.  This augments the per-process address space
to avoid TLB purging on context switch.

When data is not shared between processes, then everything is simple.
Sharing on traditional page-table per process architectures is done via
aliasing.  Sharing on PA-RISC is done by using the same GVA.

Single address space models didn't normally require aliasing.  A
process was always given a global address to the data.  Protection is
done using the Protection IDs.  This works very well when you can
control the system call semantics.  Sharing is easy and the tough
things (like very different access rights to the same VA range) are
just outlawed.  Unix process semantics that suggested aliasing (like
fork) could be easily implemented using shared global addresses.  The
text segment is directly shared by using the same space register ID.
Data segment sharing is done via copy-on-access instead of
copy-on-write.  Sharing is done with SR6 and SR7 being common between
all processes.

The other nice aspect of single address space models is the sharing of
TLB entries.  Sharing is done by using the same global virtual address
- hence it's covered by the same TLB entry.  The OS can keep a single
data structure for that object and just record the processes that
attach to it.  For example, there is a single text segment for all the
"vi" processes.  They all share the same page table and TLB entries for
that segment.

Single address spaces are not without problems.  The biggest in
PA-RISC was the 1G limit for each of the quadrants.  An aliased model
allows a flexible boundary between stack, heap, text, shared data,
etc.  We had to make special hacks to get around the problems - some
that encouraged some limited aliasing.  IBM's RS6000 has a little bit
of the same issue but had 16 space-like registers (upper 4-bits of
each 32-bit offset).  They could more easily adjust boundaries to
allow flexible sizing of process address space.  As many people have
said in the past, "this is not a problem for the 2.0 architecture
since a 62-bit offset is more than enough for the future - or at
least until I retire".

Our second problem with single address spaces that we didn't fix
until PA2.0, was good support for instruction stream space crossing.
The Apollo folks tried to get better shared library support in 1.1
('89ish) but the design (PA7000) was too far along and we just did the
FP part of their proposal.  Also, I didn't have a good handle on
shared library design to support the proposal.

A final general problem is the ability to incorporate other designs
into our "different" environment.  For example, a 3rd party file
system might be designed to coordinate between mapped files and the
buffer pool using aliasing.  While it is not hard to manage coherence
using GVAs, it will involve a lot of rework to use.

For this discussion, I'm ignoring aliasing support where all aliased
translations are ping-ponged between the different aliases via
protection faults.  We can handle any kind of alias if you're willing to
take the time to remap the page.  Some minimization of the ping-ponging
must be considered.

So the rest of the note is a little chronology of the how the aliasing
architecture evolved to the current definition.

The first specs completely outlawed all aliasing.  It was/is expected
that the OS flush the range whenever a virtual address (VA) needed to
be changed.  An early change was made to allow PA=VA aliasing in '84.  The
OS couldn't begin to manage the page tables if that aliasing wasn't
allowed.

The first 1.1 book (11/90) defined the first virtual aliasing model -
limited space aliasing.  It allows space aliasing if certain bits
match between the addresses.  For PCX-S, this means you have just 4
bits that can be used as an alias. For example, address
0x1234.00000000 (space register contents = 0x1234, offset = 00000000)
can be aliased to address 0x2234.00000000.  This change was encouraged
by some of the Apollo engineers that wanted to enable some amount of
aliasing to help with Domain needs (they wanted more).  Several of the
machines used the low-order space bits as part of the cache-index
computation.  So two addresses like 0x1.00000000 and 0x2.0000000 would
definitely NOT be in the same spot in the cache.

This wasn't enough, by the last 1.1 book (1.1e3 published 2/94) we
added 1MByte offset aliasing (page 3-6).  We also included a PDC call
to disable space hashing on the newer machines.  Once disabled, SW
could then alias any 2 virtual addresses provided the low 20-bits were
equal.  HP-UX never used this feature since it cut performance in high
multi-programmed environments (ex. TPC-A at the time).

We also introduced "non-equivalent" aliasing in the 1.1e3 book.  It
allows aliasing down to the 4k boundary if some very special rules
were followed.  In all the old designs, read-only aliasing did happen
to work, but the PA7200 had a little wrinkle that would HPMC if you didn't
carefully transition a page from read-only to read-write.

The 2.0 architecture extended the architecture to support 64-bit
offsets.  Space registers were extended to 64-bits in width (although
today's PA8xxx processors only implement 32-bits).  Aliasing rules
were changed in a small way (2.0 page F-6).  First, the space bits
that could be used in cache hashing were moved from 3 different places
to a continuous group above the low 48-bits of the GVA.  The PDC call
to disable space hashing remains.

More recently, we changed the aliasing boundary to be a range from
4K-16M that the machine communicates through PDC_CACHE.D_conf.alias.
Machines either return 0 which means "can't count on offset
aliasing" or the offset aliasing boundary.

One additional comment, a couple of recent designs do not fully meet
the read-only non-equivalent aliasing rules.  We're having some
internal discussion on how to best document the architecture.  If you
don't absolutely need the non-equivalent aliasing, avoid it or send me
mail to figure out a solution.

So, what does this mean to the PA-RISC Linux port.  I would try to
think about a 2 level approach.  The first level is a "use the global
address space if it's easy".  This would mimic the current simple HP-UX
address space layout.  If the process uses < 1Gbyte for text, data,
and shared structures (SR4, SR5, and SR6 respectively), then great.
Once a process needs resources or sharing that isn't easily
accommodated, then switch to an "all or nearly all alias" model.
In the alias model, encourage aliases that don't require flushing,
otherwise ping-pong the translations as needed.  If you use a
page-table translation SW cache in front of the real page tables,
you can use the hardware walker, avoid lots of virtual mode references
in TLB miss handler, and manage these aliases in one spot.  No doubt
some coordination problems will exist.  Just some thoughts.

Hope this helps.  As an additional FYI, we are preparing a set of
errata pages to augment the 2.0 Kane book and will post them to the web
once we complete them.  Included will be clarifications on this
non-equivalent aliasing issue.

Jerry Huck (jerry_huck@hp.com)
PA-RISC and IA-64 Architecture
Hewlett-Packard


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>>>>>>>>>>>>>>>>>>>>> snip! <<<<<<<<<<<<<<<<<<<

>> The community understands that HP has been funding and supporting the
>> port.  The big question is the level of support enough?  How important
>> is linux to HP's future?  At least two years ago, SGI decided IRIX was
>> dying and agressively started to support linux development for their
>> machines. 

>>>>>>>>>>>>>>>>>>>>> snip! <<<<<<<<<<<<<<<<<<<

>I think we have to be careful here, because there are some key 
>differences.  There is no question in my mind that Linux is very
>important to HP.  However, where SGI made the decision to eventually
>replace IRIX with Linux, HP still has full intent to aggressively
>support, enhance, and continue development of HP-UX.  HP-UX is still
>the #1 UNIX out there and HP is very committed to that customer base.

  OK, the voice from the IRIX-world: Yes, SGI does pretty much the same
thing as HP does. There's full-speed-ahead on the port, but using mostly
spare time, good will and outside community. Documentation has to go through
the same process. It all takes tiiiiiiime.... Anyway, from what I gather,
IRIX is also developing nicely. Essentially, SGI is betting on Linux for
workstations and IRIX for bigger boxes (the criteria: if You need a friend
to lift it, You need IRIX; if You can do it Yourself, Linux will be fine; if
You need a step-ladder to get into it - well, get UnicOS). Mind You, some of
the key IRIX ppl just left, but it may be of no relevance. So, SGI's idea
seems to be: get the low-end with Linux, the middle-ground with IRIX and the
high-end with UNICOS. Makes sense to me. Also, they essentially abandoned
older arch (R3k), which makes things a lot simpler (for porting and,
especially, docs).

>>>>>>>>>>>>>>>>>>>> snip! <<<<<<<<<<<<<<<<<<<<
>> Dave
>> -- 
>> J. David Anglin                                  dave.anglin@nrc.ca
>> National Research Council of Canada              (613) 
>> 990-0752 (FAX: 952-6605)
>> 
>
>+=====================================================================+
>| Martin Fink                 | E-mail: mailto:martin_fink@hp.com     |
>| UNIX Development Lab        | Phone:  970-898-7076                  |
>| Hewlett-Packard Co.         | FAX:    970-898-2838                  |
>| 3404 East Harmony Road      | ===================================== |
>| Ft. Collins, CO, USA, 80528 | Web:    http://www.hp.com/            |
>+=====================================================================+    
>
>---------------------------------------------------------------------------
>To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.
>
>


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From: "Thierry SIMONNET" <t.simonnet@esiee.fr>
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Subject: [parisc-linux] help on ramdisk.c
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I work on a HP712/60 workstation under HPUX 10.20.
I compile with cc, gcc or aCC.

I can't compile ramdisk.c in any way and then i can't do "make vmlinux" .

Could you help me?


=========================================================
Thierry SIMONNET
Responsable du Service des Moyens Informatiques Gnraux
Groupe ESIEE - CCIP
Cit Descartes - BP 99 - 2 Bd Blaise Pascal
93162 NOISY le Grand cedex

tel: 01 45 92 66 24  fax: 01 45 92 67 99 e-mail:  t.simonnet@esiee.fr
=========================================================






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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] help on ramdisk.c
Date: Fri, 17 Dec 1999 03:33:45 -0800 (PST)
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Make sure that you get
ftp://puffin.external.hp.com/pub/parisc/binaries/ramdisks/ramdisk.bin-1991108
and copy this file as ramdisk.bin to your source
directory (e.g. /usr/src/linux/). Then "make vmlinux"
should work.

Ulrich

--- Thierry SIMONNET <t.simonnet@esiee.fr> wrote:
> I work on a HP712/60 workstation under HPUX 10.20.
> I compile with cc, gcc or aCC.
> 
> I can't compile ramdisk.c in any way and then i
> can't do "make vmlinux" .
> 
> Could you help me?
> 
> 
>
=========================================================
> Thierry SIMONNET
> Responsable du Service des Moyens Informatiques
> Gnraux
> Groupe ESIEE - CCIP
> Cit Descartes - BP 99 - 2 Bd Blaise Pascal
> 93162 NOISY le Grand cedex
> 
> tel: 01 45 92 66 24  fax: 01 45 92 67 99 e-mail: 
> t.simonnet@esiee.fr
>
=========================================================
> 
> 
> 
> 
> 
>
---------------------------------------------------------------------------
> To unsubscribe: send e-mail to
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 

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> In summary, I think the 2.0 and 1.1e3 architecture book is overly
> restrictive on aliasing between physical and virtual addresses.  We

IMO they are too restrictive.

> are investigating prior designs to ensure that we can restate the
> rules to allow transitivity in the equivalent aliasing rules.  We hope

I do not believe that there is a possible implementation that wouldn't
violate the old rules but would violate the new ones -- it's more of a
clarification than an actual change (I may be thinking about a different
thing though).

> I've been involved in the PA-RISC architecture development process
> since 1983.  The virtual memory model was heavily influenced by the
> single-level store work by IBM (in System 3x).  But, that influence
> was heavily tempered by hardware designers trying to squeeze it into
> very modest LSI.  The big dilemma was the HW interest in having big
> virtual-indexed caches to avoid putting the TLB lookup in the critical
> path.  There are ways to have big caches and full aliasing support
> but it does take effort and reduces performance.

In 1983 virtually-indexed caches might have been an overall good idea. 

> PA-RISC defines a virtual memory model based on global virtual
> addresses (GVA).  A virtual address is first transformed into a global
> virtual address (via a simple space register lookup and concatenation
> for PA1.x) and that address is used to lookup in the TLB.  This allows
> a single page table to hold translations for all processes.

Yup, this is why we really really want to use space registers.

> A different mechanism is used to provide protection (protection IDs).  A
> specialization of this approach is address space IDs used in some
> other RISC architectures.  This augments the per-process address space
> to avoid TLB purging on context switch.
> 
> When data is not shared between processes, then everything is simple.
> Sharing on traditional page-table per process architectures is done via
> aliasing.  Sharing on PA-RISC is done by using the same GVA.

Doesn't sound right to me.  Sharing address spaces between threads can
be done using the same GVA.  Normal mmap style sharing we can do using
duplicated TLB entries, right ?

> Single address space models didn't normally require aliasing.  A
> process was always given a global address to the data.  Protection is
> done using the Protection IDs.  This works very well when you can
> control the system call semantics.  Sharing is easy and the tough
> things (like very different access rights to the same VA range) are
> just outlawed.  Unix process semantics that suggested aliasing (like
> fork) could be easily implemented using shared global addresses.  The
> text segment is directly shared by using the same space register ID.

This sounds like it'd be hard to get Linux to do right.  Furthermore it's
a rather minor optimization (it's about copying page tables, not about 
copying pages).

> Data segment sharing is done via copy-on-access instead of
> copy-on-write.

I think there shouldn't be a problem with doing standard COW though.

> Sharing is done with SR6 and SR7 being common between
> all processes.
> 
> The other nice aspect of single address space models is the sharing of
> TLB entries.

Did I miss the first one ?

> Sharing is done by using the same global virtual address
> - hence it's covered by the same TLB entry.  The OS can keep a single
> data structure for that object and just record the processes that
> attach to it.  For example, there is a single text segment for all the
> "vi" processes.  They all share the same page table and TLB entries for
> that segment.

Sounds hard to get to work with the page cache.

> Single address spaces are not without problems.  The biggest in
> PA-RISC was the 1G limit for each of the quadrants.  An aliased model
> allows a flexible boundary between stack, heap, text, shared data,
> etc.  We had to make special hacks to get around the problems - some
> that encouraged some limited aliasing.  IBM's RS6000 has a little bit
> of the same issue but had 16 space-like registers (upper 4-bits of
> each 32-bit offset).  They could more easily adjust boundaries to
> allow flexible sizing of process address space.  As many people have
> said in the past, "this is not a problem for the 2.0 architecture
> since a 62-bit offset is more than enough for the future - or at
> least until I retire".

If only it was 62 bits.  The space register ORing really makes that part
less fun.

> Our second problem with single address spaces that we didn't fix
> until PA2.0, was good support for instruction stream space crossing.
> The Apollo folks tried to get better shared library support in 1.1
> ('89ish) but the design (PA7000) was too far along and we just did the
> FP part of their proposal.  Also, I didn't have a good handle on
> shared library design to support the proposal.
> 
> A final general problem is the ability to incorporate other designs
> into our "different" environment.  For example, a 3rd party file
> system might be designed to coordinate between mapped files and the
> buffer pool using aliasing.  While it is not hard to manage coherence
> using GVAs, it will involve a lot of rework to use.
> 
> For this discussion, I'm ignoring aliasing support where all aliased
> translations are ping-ponged between the different aliases via
> protection faults.  We can handle any kind of alias if you're willing to
> take the time to remap the page.  Some minimization of the ping-ponging
> must be considered.
> 
> So the rest of the note is a little chronology of the how the aliasing
> architecture evolved to the current definition.
> 
> The first specs completely outlawed all aliasing.  It was/is expected
> that the OS flush the range whenever a virtual address (VA) needed to
> be changed.  An early change was made to allow PA=VA aliasing in '84.  The
> OS couldn't begin to manage the page tables if that aliasing wasn't
> allowed.

Okay, so we don't care about pre-84 boxes (are there any ?)

> The first 1.1 book (11/90) defined the first virtual aliasing model -
> limited space aliasing.  It allows space aliasing if certain bits
> match between the addresses.  For PCX-S, this means you have just 4
> bits that can be used as an alias. For example, address
> 0x1234.00000000 (space register contents = 0x1234, offset = 00000000)
> can be aliased to address 0x2234.00000000.  This change was encouraged
> by some of the Apollo engineers that wanted to enable some amount of
> aliasing to help with Domain needs (they wanted more).  Several of the
> machines used the low-order space bits as part of the cache-index
> computation.  So two addresses like 0x1.00000000 and 0x2.0000000 would
> definitely NOT be in the same spot in the cache.

So on these it's still quite hard to get Linux running and probably not
worth it.

> This wasn't enough, by the last 1.1 book (1.1e3 published 2/94) we
> added 1MByte offset aliasing (page 3-6).  We also included a PDC call
> to disable space hashing on the newer machines.  Once disabled, SW
> could then alias any 2 virtual addresses provided the low 20-bits were
> equal.  HP-UX never used this feature since it cut performance in high
> multi-programmed environments (ex. TPC-A at the time).

These are the ones we care about.

> We also introduced "non-equivalent" aliasing in the 1.1e3 book.  It
> allows aliasing down to the 4k boundary if some very special rules
> were followed.  In all the old designs, read-only aliasing did happen
> to work, but the PA7200 had a little wrinkle that would HPMC if you didn't
> carefully transition a page from read-only to read-write.
> 
> The 2.0 architecture extended the architecture to support 64-bit
> offsets.  Space registers were extended to 64-bits in width (although
> today's PA8xxx processors only implement 32-bits).  Aliasing rules
> were changed in a small way (2.0 page F-6).  First, the space bits
> that could be used in cache hashing were moved from 3 different places
> to a continuous group above the low 48-bits of the GVA.  The PDC call
> to disable space hashing remains.
> 
> More recently, we changed the aliasing boundary to be a range from
> 4K-16M that the machine communicates through PDC_CACHE.D_conf.alias.
> Machines either return 0 which means "can't count on offset
> aliasing" or the offset aliasing boundary.
> 
> One additional comment, a couple of recent designs do not fully meet
> the read-only non-equivalent aliasing rules.  We're having some
> internal discussion on how to best document the architecture.  If you
> don't absolutely need the non-equivalent aliasing, avoid it or send me
> mail to figure out a solution.

I don't think we do.

> So, what does this mean to the PA-RISC Linux port.  I would try to
> think about a 2 level approach.  The first level is a "use the global
> address space if it's easy".  This would mimic the current simple HP-UX
> address space layout.  If the process uses < 1Gbyte for text, data,
> and shared structures (SR4, SR5, and SR6 respectively), then great.

Actually, I'd expect that to be very hard to do.

> Once a process needs resources or sharing that isn't easily
> accommodated, then switch to an "all or nearly all alias" model.
> In the alias model, encourage aliases that don't require flushing,
> otherwise ping-pong the translations as needed.

Keep it coloured, no ping-pong at all ?   We have to flush the cache for
every miscoloured translation.

> If you use a page-table translation SW cache in front of the real
> page tables, you can use the hardware walker, avoid lots of

We probably will at some point.

> virtual mode references in TLB miss handler, and manage these aliases in

Why should the TLB miss handler ever enable address translation ?

> one spot.  No doubt
> some coordination problems will exist.  Just some thoughts.
> 
> Hope this helps.  As an additional FYI, we are preparing a set of

The very least it does is explain why the documentation seems to be
inconsistent.

> errata pages to augment the 2.0 Kane book and will post them to the web
> once we complete them.  Included will be clarifications on this
> non-equivalent aliasing issue.

Great.

> 
> Jerry Huck (jerry_huck@hp.com)
> PA-RISC and IA-64 Architecture
> Hewlett-Packard
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
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From - Thu Nov 08 21:11:30 2018
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Subject: Re: [parisc-linux] HP releasing docs...
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Alan Cox wrote:
> > Ideally, though, developers will have access to all the hardware they're
> > porting to.
> Irrespective of who they work for ?

I actually meant that they'd have docs for the hardware they're porting
too, but this is true too.

I think we've been pretty blind in giving hardware out at the start, and
I don't see this changing.

However, what doesn't make sense is to ship people hardware that contain
critical components that either a) don't yet have drivers written or b)
we can't send docs on.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Eric Molitor wrote:
> >From all appearences HP has a strong interest in porting Linux to the
> PA-Risc architecture (at least the 2.0 arch.). If I recall correctly
> aren't there some HP employees whom get paid to work on the port (at least
> for 2.0). 

There are, yes.  Take a bow, Grant Grundler and Paul Bame.

> Regardless I've allready heard rumors that the port is dead from
> several people whom are quite distanced from the actual port.

Anyone who thinks this port is dead clearly hasn't been reading the CVS
mailing list or reading the weekly summary of changes.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group

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Happy to announce my 9000/720 booted & ran the dummy kernel successfully
from my 2nd disk.

Keep it coming, I have a whole 2nd disk to test this on as it is
developed.  Wish I had some OS Coding knowledge & experience to add to
the project.  I will settle for being a tester :)

Jason Eckhardt wrote:

> If the test runs successfully you should see this at the end:
> ---------------------------------------------------------------------------
> 
> Reading parameters...done.
> Size = 28672 bytes, entry = 0x00001000, location = 0xnnnnnnnn.
> Loading kernel...done.
> Transferring control to kernel.
> 
> *********************************************************
> 
> VMLINUX 0.0: Dummy kernel image loaded and executing!
> 
> It is now safe to reboot. (you should see this at least once, and upto 6 times).
> 
> ---------------------------------------------------------------------------
> The very last thing you should see is a "spinning cursor" which means
> you reached the last statement in the bootstrap (i.e. passed). (this is
> an infinite loop, the cursor will spin forever until you reboot).

Got This.

> It seems that some characters get dropped on some systems, usually when
> booting over the network. I don't know why this is the case, and HPs
> documentation doesn't say anything about needing delays during console I/O.

Screen looks good, mine is running on a graphics display, not an ASCII
terminal.

-- 

Justin Hamilton
mailto:JHamilton@Earthling.Net

CTOP Computers
mailto:CTOP@Technologist.Com

-- "Microsoft announced today that the official release date for the new
operating system 'Windows 2000' will be delayed until the second quarter
of 1901."

-- "The number of UNIX installations has grown to 10, with more
expected." - The UNIX Programmer's Manual, Second Edition (June 1972)
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> > Regardless I've allready heard rumors that the port is dead from
> > several people whom are quite distanced from the actual port.
> Anyone who thinks this port is dead clearly hasn't been reading the CVS
> mailing list or reading the weekly summary of changes.

Just for anyone who wants to be told this by one more person:

I don't believe the port will be negatively influenced by LC buying TPG.
In fact, I agree with Alex that the most likely result is positive.

There is the remote possibility that LC starts behaving stupid, but I
don't think it's worth it to think about that before it actually happened.

	Philipp Rumpf


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To: Alex deVries <adevries@thepuffingroup.com>
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On Thu, 16 Dec 1999, Alex deVries wrote:

> Alan Cox wrote:
> > > Ideally, though, developers will have access to all the hardware they're
> > > porting to.
> > Irrespective of who they work for ?
> 
> I actually meant that they'd have docs for the hardware they're porting
> too, but this is true too.
> 
> I think we've been pretty blind in giving hardware out at the start, and
> I don't see this changing.
> 
> However, what doesn't make sense is to ship people hardware that contain
> critical components that either a) don't yet have drivers written or b)
> we can't send docs on.

Oddly enough what about those of us out there with copies of old HP/UX?
Having only an old copy of HP/UX there is no way that I can compile a
kernel. Is there anyway a machine can be put online for uses such as this?
(Similar to what debian is doing with the Rebel Computing ne Corel
Netwinder?) I've got a machine and a DS3 at work which can be utilized for
such a purpose. (Via our client Novare we allready host the Debian master
server. [master.debian.org]) I just dont have an OS...

Is there any interest in this?

- Eric Molitor


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> Oddly enough what about those of us out there with copies of old HP/UX?
> Having only an old copy of HP/UX there is no way that I can compile a

HP released the SOM linker source so hopefully that will get solved and 
allow cross compiles eventually.


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Subject: Re: [parisc-linux] HP releasing docs...
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> Oddly enough what about those of us out there with copies of old HP/UX?
> Having only an old copy of HP/UX there is no way that I can compile a
> kernel. Is there anyway a machine can be put online for uses such as this?

How old is your HP-UX?  I was able to build with 9.01.  If you let me
know what the problem is, there may a solution to resolve the problems
that you are having.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] Comments on non-equivalent aliasing and PA-RISC (long)
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> Date: Fri, 17 Dec 1999 15:22:06 +0100
> From: Philipp Rumpf <Philipp.H.Rumpf@mathe.stud.uni-erlangen.de>
> To: Jerry Huck <huck@cup.hp.com>
> Cc: parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] Comments on non-equivalent aliasing and PA-RISC (long)

...

> > A different mechanism is used to provide protection (protection IDs).  A
> > specialization of this approach is address space IDs used in some
> > other RISC architectures.  This augments the per-process address space
> > to avoid TLB purging on context switch.
> > 
> > When data is not shared between processes, then everything is simple.
> > Sharing on traditional page-table per process architectures is done via
> > aliasing.  Sharing on PA-RISC is done by using the same GVA.
> 
> Doesn't sound right to me.  Sharing address spaces between threads can
> be done using the same GVA.  Normal mmap style sharing we can do using
> duplicated TLB entries, right ?

"threads" definitely done with using the same GVA (or VA on traditional
machines).  Not sure what you mean by "duplicated TLB entries".  Normal
mmap style sharing could be done with the same GVA and the same TLB
entry (entries).  It gets complicated if someone wants different
fixed addresses or different protection modes.

> > Single address space models didn't normally require aliasing.  A
> > process was always given a global address to the data.  Protection is
> > done using the Protection IDs.  This works very well when you can
> > control the system call semantics.  Sharing is easy and the tough
> > things (like very different access rights to the same VA range) are
> > just outlawed.  Unix process semantics that suggested aliasing (like
> > fork) could be easily implemented using shared global addresses.  The
> > text segment is directly shared by using the same space register ID.
> 
> This sounds like it'd be hard to get Linux to do right.  Furthermore it's
> a rather minor optimization (it's about copying page tables, not about 
> copying pages).

We might be thinking of different things here.  I don't know if Linux
separates the notion of the program text object from the "owning" process.
My only point was the ability to minimize VM object overhead having
a single instance of the object that multiple processes (and threads) can
"mmap" to themselves.  This saves in kernel structures and page table
entries.

> > Data segment sharing is done via copy-on-access instead of
> > copy-on-write.
> 
> I think there shouldn't be a problem with doing standard COW though.

A pure GVA model does discourage standard COW.  When the process
forks, you would hand out a new data segment ID (say SR5 like HP-UX).
The fork is fast - just change the SR, but each access to SR5 takes
a fault and needs a copy of the original page.  If you put a little
aliasing into place (and take the hit in more live translations) then
you can use a more standard COW.  Again, the comments were restricted
to a more traditional single address space model.  Unix forking is
really matched to an aliasing model.  Are measurements of COA and COW
were inconclusive.  Most things worked well under either model.

> > Sharing is done with SR6 and SR7 being common between
> > all processes.
> > 
> > The other nice aspect of single address space models is the sharing of
> > TLB entries.
> 
> Did I miss the first one ?

I counted the "sharing of a single VM object description and address"
as the first one.

> > Sharing is done by using the same global virtual address
> > - hence it's covered by the same TLB entry.  The OS can keep a single
> > data structure for that object and just record the processes that
> > attach to it.  For example, there is a single text segment for all the
> > "vi" processes.  They all share the same page table and TLB entries for
> > that segment.
> 
> Sounds hard to get to work with the page cache.

We bypass the page cache for these kinds of mapped objects.  Since the
kernel can make "text" objects special it can avoid coherence issues
with the page cache - oddities like: execute a program and then
rewrite or delete the file before that part of the file is executed.

> > Single address spaces are not without problems.  The biggest in
> > PA-RISC was the 1G limit for each of the quadrants.  An aliased model
> > allows a flexible boundary between stack, heap, text, shared data,
> > etc.  We had to make special hacks to get around the problems - some
> > that encouraged some limited aliasing.  IBM's RS6000 has a little bit
> > of the same issue but had 16 space-like registers (upper 4-bits of
> > each 32-bit offset).  They could more easily adjust boundaries to
> > allow flexible sizing of process address space.  As many people have
> > said in the past, "this is not a problem for the 2.0 architecture
> > since a 62-bit offset is more than enough for the future - or at
> > least until I retire".
> 
> If only it was 62 bits.  The space register ORing really makes that part
> less fun.

As a kernel developer, you should really think of space registers
and offsets being concatenated together.  The concatenation point is
up to you and can be different for each SR.  The hardware can think of
the GVA in OR'ing terms.

...snip...

> > The first specs completely outlawed all aliasing.  It was/is expected
> > that the OS flush the range whenever a virtual address (VA) needed to
> > be changed.  An early change was made to allow PA=VA aliasing in '84.  The
> > OS couldn't begin to manage the page tables if that aliasing wasn't
> > allowed.
> 
> Okay, so we don't care about pre-84 boxes (are there any ?)

My dates are connected with architecture releases.  PA1.0 started
shipping in 1986.  Thankfully, I think you can totally ignore any 1.0
machines.  Have the boot driver do:
   arch_rev = PDC_MODEL.return_info.arch_rev
   if( arch_rev  == REV1.0) {
         panic()
   else ...

> > The first 1.1 book (11/90) defined the first virtual aliasing model -
> > limited space aliasing.  It allows space aliasing if certain bits
> > match between the addresses.  For PCX-S, this means you have just 4
> > bits that can be used as an alias. For example, address
> > 0x1234.00000000 (space register contents = 0x1234, offset = 00000000)
> > can be aliased to address 0x2234.00000000.  This change was encouraged
> > by some of the Apollo engineers that wanted to enable some amount of
> > aliasing to help with Domain needs (they wanted more).  Several of the
> > machines used the low-order space bits as part of the cache-index
> > computation.  So two addresses like 0x1.00000000 and 0x2.0000000 would
> > definitely NOT be in the same spot in the cache.
> 
> So on these it's still quite hard to get Linux running and probably not
> worth it.

Fortunately, the architecture was more restrictive than the HW.  You can
assume that all boxes meet the 1.1e3 spec (modulo bugs).  You can have
offset aliasing.

...snip...

> > virtual mode references in TLB miss handler, and manage these aliases in
> 
> Why should the TLB miss handler ever enable address translation ?

I wasn't sure how the forward-mapped page tables would be searched.
Some OSs do a virtual reference.  Sticking to absolute accesses is best.

Jerry


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From: "Justin Hamilton" <JHamilton@Earthling.Net>
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Subject: [parisc-linux] How to set serial console on 712
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How do I set the console on my 712 to be the serial port, not the graphics
display?

Thanks


Justin Hamilton
mailto:JHamilton@Earthling.Net

-- "The linuX Files -- The Source is Out There."

-- "Microsoft announced today that the official release date for the new
operating system 'Windows 2000' will be delayed until the second quarter of
1901."

-- "The number of UNIX installations has grown to 10, with more expected." -
The UNIX Programmer's Manual, Second Edition (June 1972)


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Justin Hamilton writes:
> How do I set the console on my 712 to be the serial port, not the graphics
> display?

Unplugging the keyboard should work. (Works for all the newer once.)

--Marcus


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From: Bill Katz "\(William\)" <billk@sr.hp.com>
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Subject: [parisc-linux] How to set serial console on 712 (fwd)
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|How do I set the console on my 712 to be the serial port, not the graphics
|display?
|
|Thanks
|

Boot to ISL and use the conspath
command to change the console back to rs232.  The command to use is:

serial
        conspath 2/0/4.643
graphics
        conspath 1/0/0.0


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From: Matthew Wilcox <willy@thepuffingroup.com>
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Subject: Re: [parisc-linux] How to set serial console on 712 (fwd)
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Xref: news.gmane.org gmane.linux.ports.parisc:6632

On Thu, Dec 23, 1999 at 07:45:00AM -0800, Bill Katz William" wrote:
> |How do I set the console on my 712 to be the serial port, not the graphics
> |display?
> |
> |Thanks
> |
> 
> Boot to ISL and use the conspath
> command to change the console back to rs232.  The command to use is:
> 
> serial
>         conspath 2/0/4.643
> graphics
>         conspath 1/0/0.0

This contradicts the PA-RISC Booting HOWTO:

-----

3.1.2.3.3. How can I change the boot console to serial on a 712?

Unfortunately, you can't. Although 712s are configured for in-house HP
development to use serial console, this configuration isn't supported
in the field. You have to use a graphics console for 712s.

-----

I'd like to know if this needs to be corrected.


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From: Matt Taggart <taggart@rascal.fc.hp.com>
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Subject: Re: [parisc-linux] How to set serial console on 712 (fwd)
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Matthew Wilcox writes...

 >On Thu, Dec 23, 1999 at 07:45:00AM -0800, Bill Katz William" wrote:
 >> |How do I set the console on my 712 to be the serial port, not the 
graphics
 >> |display?
 >> |
 >> |Thanks
 >> |
 >> 
 >> Boot to ISL and use the conspath
 >> command to change the console back to rs232.  The command to use is:
 >> 
 >> serial
 >>         conspath 2/0/4.643
 >> graphics
 >>         conspath 1/0/0.0
 >
 >This contradicts the PA-RISC Booting HOWTO:
 >
 >-----
 >
 >3.1.2.3.3. How can I change the boot console to serial on a 712?
 >
 >Unfortunately, you can't. Although 712s are configured for in-house HP
 >development to use serial console, this configuration isn't supported
 >in the field. You have to use a graphics console for 712s.
 >
 >-----
 >
 >I'd like to know if this needs to be corrected.

The above statement about serial console not being "supported" on 712 is 
correct. That doesn't mean you can't do it. Here are the instructions,

-------------
CONFIGURING A RS-232 CONSOLE on a 712

An RS-232 console is not a supported feature in the 712 products. For this 
reason users cannot select the RS-232 port as a console from the BOOT_ADMIN 
prompt.

These instructions will configure an RS-232 console with 9600 Baud, 8 data 
bits, 1 stop bit, and no parity.

HOW-TO INSTRUCTIONS

NOTE: If the following instructions are not entered correctly, your system 
may be left in an un-usable state. Contact support to "dagger" your system 
in this case.

     Power up the 712 system. 
     Press (ESCAPE) during boot to abort auto booting the system. 
     At the BOOT_ADMIN> prompt, use the boot command and the isl keyword.
        This will stop the boot sequence at ISL instead of booting to the 
OS.
     For example: 'boot scsi.6 isl' 
     At the ISL> prompt, type 'conspath 2/0/4.0x283' 
     At the ISL> prompt, type 'disp' and verify console path is:
        (hex) 2/0/4.283.0.0.0.0.0 
     If necessary re-type the conspath command above. 
     Connect an RS-232 terminal to the system. 
     Power cycle the system to bring it up on an RS-232 console. 
-------------

As it indicates above, *BE VERY CAREFUL* or you can hose your system. If 
you
do, I have one of the "dagger" cards that can be loaned out to fix it.

-- 
Matt Taggart
taggart@fc.hp.com




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Boot test #4: This is essentially the same code as #3 but I have taken
out some delays, modified the cache flush routines, and turned
verbose (debug) mode back on. I want to make sure that not having the delays
makes no difference and that no characters get dropped when there is a lot
of text (as in debug mode). Please let me know if the test still passes
as before. Hopefully this will be the last test for a while. Kernel work
comes next.

I have uploaded the binary as well as a new source drop to the ftp site. The
source is now GPL'd and a detailed README is included which gives an overview
of the boot code operation. This source supersedes any previous source you
may have laying around.

ftp from sod.res.cmu.edu:/pub/parisc/hilo
  boot_rel_0.2.tar.gz        The latest source code and documentation.
  bootstrap_4.bin.gz         Bootstrap binary #4. 

Regards, 
Jason Eckhardt.

-------------------------------------------------------------------------
To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
`unsubscribe' as the subject.



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From: MaShaun Jones <mkj@mkj.cb.lucent.com>
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Subject: Re: [parisc-linux] How to set serial console on 712 (fwd)
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Xref: news.gmane.org gmane.linux.ports.parisc:6634

Is there a way to use a serial console with a 715 however?

On Thu, 23 Dec 1999, Matt Taggart wrote:

> 
> Matthew Wilcox writes...
> 
>  >On Thu, Dec 23, 1999 at 07:45:00AM -0800, Bill Katz William" wrote:
>  >> |How do I set the console on my 712 to be the serial port, not the 
> graphics
>  >> |display?
>  >> |
>  >> |Thanks
>  >> |
>  >> 
>  >> Boot to ISL and use the conspath
>  >> command to change the console back to rs232.  The command to use is:
>  >> 
>  >> serial
>  >>         conspath 2/0/4.643
>  >> graphics
>  >>         conspath 1/0/0.0
>  >
>  >This contradicts the PA-RISC Booting HOWTO:
>  >
>  >-----
>  >
>  >3.1.2.3.3. How can I change the boot console to serial on a 712?
>  >
>  >Unfortunately, you can't. Although 712s are configured for in-house HP
>  >development to use serial console, this configuration isn't supported
>  >in the field. You have to use a graphics console for 712s.
>  >
>  >-----
>  >
>  >I'd like to know if this needs to be corrected.
> 
> The above statement about serial console not being "supported" on 712 is 
> correct. That doesn't mean you can't do it. Here are the instructions,
> 
> -------------
> CONFIGURING A RS-232 CONSOLE on a 712
> 
> An RS-232 console is not a supported feature in the 712 products. For this 
> reason users cannot select the RS-232 port as a console from the BOOT_ADMIN 
> prompt.
> 
> These instructions will configure an RS-232 console with 9600 Baud, 8 data 
> bits, 1 stop bit, and no parity.
> 
> HOW-TO INSTRUCTIONS
> 
> NOTE: If the following instructions are not entered correctly, your system 
> may be left in an un-usable state. Contact support to "dagger" your system 
> in this case.
> 
>      Power up the 712 system. 
>      Press (ESCAPE) during boot to abort auto booting the system. 
>      At the BOOT_ADMIN> prompt, use the boot command and the isl keyword.
>         This will stop the boot sequence at ISL instead of booting to the 
> OS.
>      For example: 'boot scsi.6 isl' 
>      At the ISL> prompt, type 'conspath 2/0/4.0x283' 
>      At the ISL> prompt, type 'disp' and verify console path is:
>         (hex) 2/0/4.283.0.0.0.0.0 
>      If necessary re-type the conspath command above. 
>      Connect an RS-232 terminal to the system. 
>      Power cycle the system to bring it up on an RS-232 console. 
> -------------
> 
> As it indicates above, *BE VERY CAREFUL* or you can hose your system. If 
> you
> do, I have one of the "dagger" cards that can be loaned out to fix it.
> 
> -- 
> Matt Taggart
> taggart@fc.hp.com
> 
> 
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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MaShaun Jones writes...

 >Is there a way to use a serial console with a 715 however?

As someone mentioned previously, just unplug the keyboard. Almost all HP-PA 
workstations will go to serial if they can't find a keyboard. The only one 
I know of that doesn't is the 712. If you want to force an HP-PA 
workstation to serial(even if a keyboard is plugged in) then set the 
console path in the firmware. It varies by machine but it's usually pretty 
easy. The "help" command should give you an example for the machine you're 
on. The 712 was purposely obfuscated so people wouldn't use serial console.

-- 
Matt Taggart
taggart@fc.hp.com



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Subject: Re: [parisc-linux] How to set serial console on 712 (fwd)
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Xref: news.gmane.org gmane.linux.ports.parisc:6636

On Thu, Dec 23, 1999 at 03:19:48PM -0500, MaShaun Jones wrote:
> Is there a way to use a serial console with a 715 however?

Yes, and it features in the HOWTO:

http://www.oswg.org/oswg-nightly/oswg/en_US.ISO_8859-1/articles/parisc-linux/parisc-linux-boot/preparation.html#SERIALCONSOLE

i've used a 715 in this configuration myself.


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From: Mark Newnham <mnewnham@adacorp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Linux port for 800 series
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Just a very general question:

How is the linux port doing for the 800 series machines? I've a couple of
old boxes crying out for linux....


Regards

Mark

#####################################################
Mark Newnham
Application Design Associates, Inc
6021 S.Syracuse Way #302
Englewood, CO 80111, USA
#####################################################


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Subject: Re: [parisc-linux] Linux port for 800 series
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Xref: news.gmane.org gmane.linux.ports.parisc:6638

On Thu, Dec 23, 1999 at 03:15:23PM -0700, Mark Newnham wrote:
> Just a very general question:
> 
> How is the linux port doing for the 800 series machines? I've a couple of
> old boxes crying out for linux....

Depends exactly which models from the 800 series.  Some of them are PA1.0
which no-one plans to support.  Some of them have proprietary IO busses
that no-one seems interested in working on.  Please have a look at
http://www.thepuffingroup.com/parisc/hw.html and see if your machine
is in the database.  Some of the machines have different names; you can
also look at http://www.thepuffingroup.com/parisc/hp9000_models.html


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From: Hugo.van.der.Kooij@caiw.nl
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Subject: Re: [parisc-linux] Linux port for 800 series
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On Thu, 23 Dec 1999, Matthew Wilcox wrote:

> On Thu, Dec 23, 1999 at 03:15:23PM -0700, Mark Newnham wrote:
> > Just a very general question:
> > 
> > How is the linux port doing for the 800 series machines? I've a couple of
> > old boxes crying out for linux....
> 
> Depends exactly which models from the 800 series.  Some of them are PA1.0
> which no-one plans to support.  Some of them have proprietary IO busses
> that no-one seems interested in working on.  Please have a look at
> http://www.thepuffingroup.com/parisc/hw.html and see if your machine
> is in the database.  Some of the machines have different names; you can
> also look at http://www.thepuffingroup.com/parisc/hp9000_models.html

Nice. But it does not tell what state the different machines are at all.
It just lists the machines out in the field but not how far the various
parts are completed.

And that is what I would like to learn from the database.

Hugo.

-- 
Hugo van der Kooij; Oranje Nassaustraat 16; 3155 VJ  Maasland
hvdkooij@caiw.nl	http://home.kabelfoon.nl/~hvdkooij/
--------------------------------------------------------------
Use of any of my email addresses for unsollicited (commercial)
    email is a clear intrusion of my privacy and illegal!


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From: Tom Gallagher <teg@cableinet.co.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] How to set serial console on 712 (fwd)
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I seem to have managed to set my console on my 712 to be neither serial
or graphics.  When HPUX boots it seems to detect the console is serial
and I get a login prompt and console messages on my serial terminal, but
it is not really the console as I see no messages from ISL etc on the
serial port.
I think I incorrectly typed the console path when I changed it :( .

The machine boots fine and I can telnet to it etc, but I have no way of
accessing the PDC/ISL.  Before I managed to do this I upgraded it to the
lastest firmware.

Is there some HPUX (10.20) command or trick to alter PDC? ISL?
information to reset my console to a sane state?

I have tried unplugging the keyboard/disks/LAN pretty much everything
really to try to reset it to some factory default.

Thanks.

>From Tom

(PS Not strictly on topic, but I would really like to assist in the PA
RISC port as a tester etc and I cannot do this without access to
console!).

> -----Original Message-----
> From: Matt Taggart [mailto:taggart@rascal.fc.hp.com]
> Sent: Thursday, December 23, 1999 9:35 PM
> To: MaShaun Jones
> Cc: Matthew Wilcox; bkatz@agilent.com; parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] How to set serial console on 712 (fwd) 
> 
> 
> 
> MaShaun Jones writes...
> 
>  >Is there a way to use a serial console with a 715 however?
> 
> As someone mentioned previously, just unplug the keyboard. 
> Almost all HP-PA 
> workstations will go to serial if they can't find a keyboard. 
> The only one 
> I know of that doesn't is the 712. If you want to force an HP-PA 
> workstation to serial(even if a keyboard is plugged in) then set the 
> console path in the firmware. It varies by machine but it's 
> usually pretty 
> easy. The "help" command should give you an example for the 
> machine you're 
> on. The 712 was purposely obfuscated so people wouldn't use 
> serial console.
> 
> -- 
> Matt Taggart
> taggart@fc.hp.com
> 
> 
> --------------------------------------------------------------
> -------------
> To unsubscribe: send e-mail to 
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
>


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From: Sandy Harris <sandy@storm.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Firmware (was How to set serial ..)
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Tom Gallagher wrote:

> ...  Before I managed to do this I upgraded it to the
> lastest firmware.

How does one do that?


From - Thu Nov 08 21:11:32 2018
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From: Michael Shalayeff <mickey@lucifier.dial-up.user.akula.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Firmware (was How to set serial ..)
Date: Fri, 24 Dec 1999 13:26:50 -0500 (EST)
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To: sandy@storm.ca (Sandy Harris)
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Making, drinking tea and reading an opus magnum from Sandy Harris:
> Tom Gallagher wrote:
> 
> > ...  Before I managed to do this I upgraded it to the
> > lastest firmware.
> 
> How does one do that?
there is a bootable image somewhere on hp site.
one should boot either from spare disk or over the network.
the image itself will perform an upgrade.
one caution, it upgrades the graphics eprom as well and
changes the video mode.
the cure is to type blindly the boor_admin command to change to whatever
resolution one had before the upgrade.

cu

-- 
    paranoic mickey       (my employers have changed but, the name has remained)


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From: "Soto,  Gene G." <Gene.Soto@bakeroiltools.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] cd-rom
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I need to load 10.02 and am having problems mounting a NEC cdr-1410a cd-rom
on my system (9000/712).  Any advice on where to go for help would be
appreciated.  (SAM sees the device but I can't mount it).

thanks

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Hi !

Bootstrap #4 works again perfectly and very fast here on 715/64 via BOOTP/TFTP !
No Problems !

Helge Deller.

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> I need to load 10.02 and am having problems mounting a NEC cdr-1410a cd-rom
> on my system (9000/712).  Any advice on where to go for help would be
> appreciated.  (SAM sees the device but I can't mount it).
> 
> thanks

Maybe a stupid question, but I have had similar problems with a floppy drive. 
Have you tried to mount it "by hand"? I.e. not using SAM, "mount /dev/dsk/c0tXd0 /cdrom" 
where X is the SCSI ID. There might (but probably not) also be a conflict 
with the SCSI ID. Does "ioscan" see the device? Try to boot from the CD,
if that doesn't work then I don't know.

/Jan Bergman
jb@irfu.se


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"Soto, Gene G." wrote:
> 
> I need to load 10.02 and am having problems mounting a NEC cdr-1410a cd-rom
> on my system (9000/712).  Any advice on where to go for help would be
> appreciated.  (SAM sees the device but I can't mount it).

Quite a few workstations seem to be picky about CD-ROM drives,
especially for booting and installing the OS. For Suns, the issue is
sector size. PC CDs want to use 512 and Sun wants 2K or vice versa.
I forget which way around it is. Some drives work on Sun, some need a
jumper change to work, some just don't.

A friend trying to install HP-UX on a 712 recently succeeded with the
fifth drive he tried. All drives worked fine on other systems. After
the install, he tried using a couple of the failed ones on the HP, and
that worked too.

I'd suggest trying a different drive.


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	> I need to load 10.02 and am having problems mounting a NEC
cdr-1410a cd-rom
	> on my system (9000/712).  Any advice on where to go for help would
be
	> appreciated.  (SAM sees the device but I can't mount it).
	> 
	> thanks

	Maybe a stupid question, but I have had similar problems with a
floppy drive. 
	Have you tried to mount it "by hand"? I.e. not using SAM, "mount
/dev/dsk/c0tXd0 /cdrom" 
	where X is the SCSI ID. There might (but probably not) also be a
conflict 
	with the SCSI ID. Does "ioscan" see the device? Try to boot from the
CD,
	if that doesn't work then I don't know.

	/Jan Bergman
	jb@irfu.se <mailto:jb@irfu.se> 



	correction: it is a NEC MultiSpin 2Xe (CDR-74-1)

	i have set the ID to 4.  I also tried it on 3 and it would not
detect it.

	it has 4 switches on the back and i have 1 & 2 set opposite of what
is recommended
	on the NEC webpage for installation on IBM or compatibles (that's
the only way SAM
	detected the device):
	switch 1 is Factory Use Only(Normal OFF) (I have it ON)
	switch 2 is Termination ON/OFF (I have it OFF)
	switch 3 is SCSI2/ON SCSI1/OFF (I have it OFF)
	switch 4 is Factory Use Only(Normal OFF) (I have it ON)

	I am running 9.01 (and don't have the 'n' option in ioscan).
	This is ioscan -f:

	Class    H/W Path  Driver   H/W Status    S/W Status 
	=====================================================
	graphics 1.0.0     graph3   ok(0x577)     ok         
	scsi     2.0.1     c700     ok(0x7071)    ok         
	disk     2.0.1.0.0 scsi     ok(0x202)     ok         
	disk     2.0.1.1.0 scsi     ok(0x202)     ok         
	disk     2.0.1.4.0 scsi     ok(0x5800100) ok         
	disk     2.0.1.5.0 scsi     ok(0x202)     ok         
	disk     2.0.1.6.0 scsi     ok(0x202)     ok         
	lan      2.0.2     lan01    ok(0x7072)    ok         
	hil      2.0.3     hil      ok(0x7073)    ok         
	serial   2.0.4     asio0    ok(0x7075)    ok         
	serial   2.0.5     asio0    ok(0x7075)    ok         
	parallel 2.0.6     parallel ok(0x7074)    ok         


	I get the following note from SAM when I try to add the disk:
	SAM was unable to determine the disk model of one of the disk drives
on your system,
	and is assuming that disk drive is used.  This may happen if the
disk drive is a
	disk array or if the disk is not listed in
/usr/sam/lib/C/pd_devinfo.tx.

	this is the only cd-rom info listed in pd_devinfo.tx:
	DISK:::scsi::::TOSHIBA CD-ROM XM-3301TA:::SCSI CD-ROM
drive::::::::::::::::CDROM_SCSI,
	DISK:::scsi::::TOSHIBA CD-ROM DRIVE:::::::SCSI CD-ROM
drive::::::::::::::::CDROM_SCSI,

	is it possible to add something to pd_devinfo.tx that would allow it
to mount?

	these are the device files:
	/dev/dsk/4s0
	/dev/dsk/c201d4s0
	/dev/rdsk/4s0
	/dev/rdsk/c201d4s0

	when I try adding the following entry to /etc/checklist:
	/dev/dsk/c201d4s0 /cdrom cdfs defaults

	i get the following message when i try to mount it:
	/dev/dsk/c201d4s0: Device busy


From - Thu Nov 08 21:11:32 2018
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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] cd-rom
Date: Tue, 28 Dec 1999 23:18:43 -0800 (PST)
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Although I used HP-UX 9.x some years ago, I don't know
what your mounting problem is. But anyway, in order to
install HP-UX 10.20 you NEED to BOOT from the CD.

So please try to boot from the CD (e.g. press ESC
during the boot sequence, search for bootable devices
and select your CD hardware path 2.0.1.4.0). If you
get any errors from this procedure, please post the
error message(s) and the output from the search
command.

Ulrich      

-- "Soto,  Gene G." <Gene.Soto@bakeroiltools.com>
wrote:
> 	> I need to load 10.02 and am having problems
> mounting a NEC
> cdr-1410a cd-rom
> 	> on my system (9000/712).  Any advice on where to
> go for help would
> be
> 	> appreciated.  (SAM sees the device but I can't
> mount it).
> 	> 
> 	> thanks
> 
> 	Maybe a stupid question, but I have had similar
> problems with a
> floppy drive. 
> 	Have you tried to mount it "by hand"? I.e. not
> using SAM, "mount
> /dev/dsk/c0tXd0 /cdrom" 
> 	where X is the SCSI ID. There might (but probably
> not) also be a
> conflict 
> 	with the SCSI ID. Does "ioscan" see the device? Try
> to boot from the
> CD,
> 	if that doesn't work then I don't know.
> 
> 	/Jan Bergman
> 	jb@irfu.se <mailto:jb@irfu.se> 
> 
> 
> 
> 	correction: it is a NEC MultiSpin 2Xe (CDR-74-1)
> 
> 	i have set the ID to 4.  I also tried it on 3 and
> it would not
> detect it.
> 
> 	it has 4 switches on the back and i have 1 & 2 set
> opposite of what
> is recommended
> 	on the NEC webpage for installation on IBM or
> compatibles (that's
> the only way SAM
> 	detected the device):
> 	switch 1 is Factory Use Only(Normal OFF) (I have it
> ON)
> 	switch 2 is Termination ON/OFF (I have it OFF)
> 	switch 3 is SCSI2/ON SCSI1/OFF (I have it OFF)
> 	switch 4 is Factory Use Only(Normal OFF) (I have it
> ON)
> 
> 	I am running 9.01 (and don't have the 'n' option in
> ioscan).
> 	This is ioscan -f:
> 
> 	Class    H/W Path  Driver   H/W Status    S/W
> Status 
> 
>
=====================================================
> 	graphics 1.0.0     graph3   ok(0x577)     ok       
>  
> 	scsi     2.0.1     c700     ok(0x7071)    ok       
>  
> 	disk     2.0.1.0.0 scsi     ok(0x202)     ok       
>  
> 	disk     2.0.1.1.0 scsi     ok(0x202)     ok       
>  
> 	disk     2.0.1.4.0 scsi     ok(0x5800100) ok       
>  
> 	disk     2.0.1.5.0 scsi     ok(0x202)     ok       
>  
> 	disk     2.0.1.6.0 scsi     ok(0x202)     ok       
>  
> 	lan      2.0.2     lan01    ok(0x7072)    ok       
>  
> 	hil      2.0.3     hil      ok(0x7073)    ok       
>  
> 	serial   2.0.4     asio0    ok(0x7075)    ok       
>  
> 	serial   2.0.5     asio0    ok(0x7075)    ok       
>  
> 	parallel 2.0.6     parallel ok(0x7074)    ok       
>  
> 
> 
> 	I get the following note from SAM when I try to add
> the disk:
> 	SAM was unable to determine the disk model of one
> of the disk drives
> on your system,
> 	and is assuming that disk drive is used.  This may
> happen if the
> disk drive is a
> 	disk array or if the disk is not listed in
> /usr/sam/lib/C/pd_devinfo.tx.
> 
> 	this is the only cd-rom info listed in
> pd_devinfo.tx:
> 	DISK:::scsi::::TOSHIBA CD-ROM XM-3301TA:::SCSI
> CD-ROM
> drive::::::::::::::::CDROM_SCSI,
> 	DISK:::scsi::::TOSHIBA CD-ROM DRIVE:::::::SCSI
> CD-ROM
> drive::::::::::::::::CDROM_SCSI,
> 
> 	is it possible to add something to pd_devinfo.tx
> that would allow it
> to mount?
> 
> 	these are the device files:
> 	/dev/dsk/4s0
> 	/dev/dsk/c201d4s0
> 	/dev/rdsk/4s0
> 	/dev/rdsk/c201d4s0
> 
> 	when I try adding the following entry to
> /etc/checklist:
> 	/dev/dsk/c201d4s0 /cdrom cdfs defaults
> 
> 	i get the following message when i try to mount it:
> 	/dev/dsk/c201d4s0: Device busy
> 
>
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> To unsubscribe: send e-mail to
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 

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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] cd-rom
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To: Gene.Soto@bakeroiltools.com (Soto,  Gene G.)
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> 	correction: it is a NEC MultiSpin 2Xe (CDR-74-1)
> 
> 	i have set the ID to 4.  I also tried it on 3 and it would not
> detect it.
> 
> 	it has 4 switches on the back and i have 1 & 2 set opposite of what
> is recommended
> 	on the NEC webpage for installation on IBM or compatibles (that's
> the only way SAM
> 	detected the device):
> 	switch 1 is Factory Use Only(Normal OFF) (I have it ON)
> 	switch 2 is Termination ON/OFF (I have it OFF)
> 	switch 3 is SCSI2/ON SCSI1/OFF (I have it OFF)
> 	switch 4 is Factory Use Only(Normal OFF) (I have it ON)

Strange.  I have a NEC CD-ROM drive on my machine and I am pretty
certain the switch settings are per the drive manual.  In general,
If this is the last drive on the chain, termination should be on.
SCSI2 should be OK.  You should be able to see the drive with
diskinfo if you have the SCSI ID and driver major/minor set correctly.

> 	is it possible to add something to pd_devinfo.tx that would allow it
> to mount?

Yes.  However, this is only for sam.  You should be able to manually
mount/umount the drive.  The busy error indicates that some process is
trying to open device file (possibly, because you have the device listed
in /etc/checklist).

> 
> 	when I try adding the following entry to /etc/checklist:
> 	/dev/dsk/c201d4s0 /cdrom cdfs defaults
> 
> 	i get the following message when i try to mount it:
> 	/dev/dsk/c201d4s0: Device busy

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Mike MacDonald <mmacdonald@tsi.gte.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] cd-rom
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I don't know if this helps (collaboration), but I have a 715/50, and it will
only boot from an HP CDRom that we have around here.  I have another cdrom
that I use the rest of the time - since it works great except for booting..

Anyway, my 715 will ONLY boot HPUX from certain cdroms, but will recognize
all cdroms fine.  I just figured there was something in the firmware or
something.

In fact, I can even read the HPUX cd no problem from my cdrom, but it won't
boot from it..   The HP CDROM worked fine..


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From: jay <jaym@mail.munsterman.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] cd-rom
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Further collaboration... I have been able to boot my 715/50 and 715/100
from an old single speed Chinon drive to install HPUX.

On Wed, 29 Dec 1999, Mike MacDonald wrote:

> 
> I don't know if this helps (collaboration), but I have a 715/50, and it will
> only boot from an HP CDRom that we have around here.  I have another cdrom
> that I use the rest of the time - since it works great except for booting..
> 
> Anyway, my 715 will ONLY boot HPUX from certain cdroms, but will recognize
> all cdroms fine.  I just figured there was something in the firmware or
> something.
> 
> In fact, I can even read the HPUX cd no problem from my cdrom, but it won't
> boot from it..   The HP CDROM worked fine..
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


From - Thu Nov 08 21:11:32 2018
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From: <tom@piace.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Thanks...alot
Date: Thu, 30 Dec 1999 02:12:46 -0600 (CST)
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	Two weeks I have received two 735 on loan.  They came from a
surplus computer shop, and they did not know what they had, so I am
working on two of the to see if I can get them to work, and If I can I get
one for free in trade for telling them how to fix the others.  They still
have the hpux loaded, but they have the passwords set.  

	I would like to help with the porting effort, but I have not been
able to find a monitor that worked with the composit sync, and such a high
sync rate, and I thought all was lost, but after reading the last
few posts I was able to get one of them talking over a serial connection.  

	Does anyone know if hp has a development version of hpux like
sun has with solaris?  If not does anyone know of a way to reset the
password from the console.

	My only other idea is to find a diff scsi card that I can put
into my other linux box, and try to mount the root partions, and edit the
password file.  

	Any help would be great.  


					Thanks A Lot
					Thomas Bloom


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Tom,

My 735 at home is running off a Hitachi CM630U.  It's a 17 inch monitor with
'sync on green' capabilities( 620's dont have this) . This monitor works for the
48z graphics box and the 24z graphics board that I have for my 735.

--Unrelated,  Does anyone know where I can find an original set of hardware
manuals
for the 735 series -- I believe myself or my better half inadvertently pitched
them out.  :-(

Mike


__________________

The contents of this message represent the opinions of the employee and not
necessarily the opinions of Invacare Corporation.



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From: "Soto,  Gene G." <Gene.Soto@bakeroiltools.com>
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Subject: FW: [parisc-linux] cd-rom
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----------
From:  Soto,  Gene G.
Sent:  Thursday, December 30, 1999 7:32 AM
To:  'John David Anglin'
Subject:  RE: [parisc-linux] cd-rom

Thanks,
I was able to mount it by resetting the switches (although I could swear I
tried them with the current configuration but on scsi id switch 3).

Your information is greatly appreciated.
Gene
	----------
	From:  John David Anglin [SMTP:dave@hiauly1.hia.nrc.ca]
<mailto:[SMTP:dave@hiauly1.hia.nrc.ca]> 
	Sent:  Wednesday, December 29, 1999 11:05 AM
	To:  Gene.Soto@bakeroiltools.com
<mailto:Gene.Soto@bakeroiltools.com> 
	Cc:  jb@sapin.irfu.se; <mailto:jb@sapin.irfu.se;>
parisc-linux@thepuffingroup.com <mailto:parisc-linux@thepuffingroup.com> 
	Subject:  Re: [parisc-linux] cd-rom

	> 	correction: it is a NEC MultiSpin 2Xe (CDR-74-1)
	> 
	> 	i have set the ID to 4.  I also tried it on 3 and it would
not
	> detect it.
	> 
	> 	it has 4 switches on the back and i have 1 & 2 set opposite
of what
	> is recommended
	> 	on the NEC webpage for installation on IBM or compatibles
(that's
	> the only way SAM
	> 	detected the device):
	> 	switch 1 is Factory Use Only(Normal OFF) (I have it ON)
	> 	switch 2 is Termination ON/OFF (I have it OFF)
	> 	switch 3 is SCSI2/ON SCSI1/OFF (I have it OFF)
	> 	switch 4 is Factory Use Only(Normal OFF) (I have it ON)

	Strange.  I have a NEC CD-ROM drive on my machine and I am pretty
	certain the switch settings are per the drive manual.  In general,
	If this is the last drive on the chain, termination should be on.
	SCSI2 should be OK.  You should be able to see the drive with
	diskinfo if you have the SCSI ID and driver major/minor set
correctly.

	> 	is it possible to add something to pd_devinfo.tx that would
allow it
	> to mount?

	Yes.  However, this is only for sam.  You should be able to manually
	mount/umount the drive.  The busy error indicates that some process
is
	trying to open device file (possibly, because you have the device
listed
	in /etc/checklist).

	> 
	> 	when I try adding the following entry to /etc/checklist:
	> 	/dev/dsk/c201d4s0 /cdrom cdfs defaults
	> 
	> 	i get the following message when i try to mount it:
	> 	/dev/dsk/c201d4s0: Device busy

	-- 
	J. David Anglin                                  dave.anglin@nrc.ca
<mailto:dave.anglin@nrc.ca> 
	National Research Council of Canada              (613) 990-0752
(FAX: 952-6605)

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Another success booting from disk on an 816/E35.

- Kevin Vajk
  <kvajk@ricochet.net>



Main Menu: Enter command or menu > boot 56/40.6
Interact with IPL (Y or N)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 4


HARD Booted.

------------------------------------------------------------------------------

PARISC/Linux Bootstrap Version 0.2 (interactive)
By Jason Eckhardt
Built Thu Mar 11 16:01:50 CST 1999 by jason@sathanas

IPL_DEBUG: Page zero parameters:
  P0_IMM_max_mem:          134217728 (128 MB)
  P0_BOOTCPU_10msec:       640000 (64 MHz)
  P0_BOOTCPU_mem_free:     0x00008000
  P0_BOOTCPU_hpa:          0xFFFBE000
  P0_BOOTCPU_pdc:          0xF001F648
  P0_COUT_iodc_io:         0x00008000
  P0_CIN_iodc_io:          0x00008000
  P0_BOOTDEV_iodc_io:      0x00008410
  P0_COUT_class:           0x00000007
  P0_CIN_class:            0x00000007
  P0_BOOTDEV_class:        0x00000001
Reading parameters...done.
Size = 28672 bytes, entry = 0x00001000, location = 0x0001B000.
Loading kernel...done.
Transferring control to kernel.

*********************************************************

VMLINUX 0.0: Dummy kernel image loaded and executing!


It is now safe to reboot.
/


-------------------------------------------------------------------------
To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
`unsubscribe' as the subject.



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MaShaun Jones wrote:
> Is there a way to use a serial console with a 715 however?

Another method:
PDC will use serial port 1 as console if one holds TOC button (near
the power button) for about 10 seconds while powering on.

grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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tom@piace.com writes:
- 	Does anyone know if hp has a development version of hpux like
- sun has with solaris?  If not does anyone know of a way to reset the
- password from the console.

	Depending upon the OS version and the settings, you
should be able to boot the system to single user mode, and reset
the password.  I'm a bit out of practice, but if you ``boot
isl'', and then enter `/hp-ux -is' (for 9.0x) or `/stand/vmunix
-is' (for 10.20), you should be get a single user prompt,
without having to enter a password (later OS versions may
require the root password to enter single user mode.)

- 	My only other idea is to find a diff scsi card that I can put
- into my other linux box, and try to mount the root partions, and edit the
- password file.  

	That probably won't work, as the filesystem used by
HP-UX is just enough different that Linux won't be able to mount
it..  If it's a 10.20 or later system, running LVM, Linux
_realy_ won't know what to do with it..

--
Eric Schnoebelen		eric@cirr.com		http://www.cirr.com
	Have you ever noticed that the people who are always trying 
	to tell you, "There's a time for work and a time for play," 
			never find the time for play.


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I was able to boot into single user mode, and edit the password file.  It
took a while to find a terminal program for my computer, that would let me
run vi correctly.  Thanks for all your help.

On Thu, 30 Dec 1999, Eric Schnoebelen wrote:

> 
> tom@piace.com writes:
> - 	Does anyone know if hp has a development version of hpux like
> - sun has with solaris?  If not does anyone know of a way to reset the
> - password from the console.
> 
> 	Depending upon the OS version and the settings, you
> should be able to boot the system to single user mode, and reset
> the password.  I'm a bit out of practice, but if you ``boot
> isl'', and then enter `/hp-ux -is' (for 9.0x) or `/stand/vmunix
> -is' (for 10.20), you should be get a single user prompt,
> without having to enter a password (later OS versions may
> require the root password to enter single user mode.)
> 
> - 	My only other idea is to find a diff scsi card that I can put
> - into my other linux box, and try to mount the root partions, and edit the
> - password file.  
> 
> 	That probably won't work, as the filesystem used by
> HP-UX is just enough different that Linux won't be able to mount
> it..  If it's a 10.20 or later system, running LVM, Linux
> _realy_ won't know what to do with it..
> 
> --
> Eric Schnoebelen		eric@cirr.com		http://www.cirr.com
> 	Have you ever noticed that the people who are always trying 
> 	to tell you, "There's a time for work and a time for play," 
> 			never find the time for play.
> 


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From: Matthew Wilcox <willy@thepuffingroup.com>
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Subject: [parisc-linux] Trouble building CVS binutils
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I just attempted to build the binutils in CVS and ran across this problem.
When building bfd/hpux-core.c, it stops with a parse error before uint64_t
which is used in one of the hpux header files.  <sys/_inttypes.h>
does not define this type unless the __STDC_EXT__ symbol is defined.
I added this symbol to the egcs spec file and binutils now builds, but
I'm not sure this is the most appropriate fix.  It probably is, since
HPUX's headers seem to use this as a sign that the compiler supports
`long long', but I'm not sure if that's the only thing it means.
  
Now back to finding out why nm no longer likes to work on vmlinux...

-- 
"If I abstain from fun and such,
 I'll probably amount to much;
 But I shall stay the way I am,
 Because I do not give a damn."


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Subject: Re: [parisc-linux] Trouble building CVS binutils
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  In message <19991230121655.T12629@thepuffingroup.com>you write:
  > 
  > I just attempted to build the binutils in CVS and ran across this problem.
  > When building bfd/hpux-core.c, it stops with a parse error before uint64_t
  > which is used in one of the hpux header files.  <sys/_inttypes.h>
  > does not define this type unless the __STDC_EXT__ symbol is defined.
  > I added this symbol to the egcs spec file and binutils now builds, but
  > I'm not sure this is the most appropriate fix.  It probably is, since
  > HPUX's headers seem to use this as a sign that the compiler supports
  > `long long', but I'm not sure if that's the only thing it means.
Let me guess.  You're using gcc on hpux11?  

No released version of gcc supports hpux11 yet.
jeff


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From: Matthew Wilcox <willy@thepuffingroup.com>
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Subject: Re: [parisc-linux] Trouble building CVS binutils
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On Thu, Dec 30, 1999 at 10:16:33AM -0700, Jeffrey A Law wrote:
> Let me guess.  You're using gcc on hpux11?  

correct.

> No released version of gcc supports hpux11 yet.

oops, didn't realise that.  i should build binaries on hpux-10 to run
them on hpux 11?


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From: eric@cirr.com (Eric Schnoebelen)
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tom@piace.com writes:
- I was able to boot into single user mode, and edit the password file.  It
- took a while to find a terminal program for my computer, that would let me
- run vi correctly.  Thanks for all your help.

	You realize you did more work than required, right??
Since you were running as root at single user, you could have
used the `passwd' command to change roots password.

	On the other hand, its always good to know enough of
`ed(1)' to be able to fix things like this no matter what sort
of terminal you have..

--
Eric Schnoebelen		eric@cirr.com 		http://www.cirr.com
If bankers can count, how come they have eight windows and only four tellers?


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trouble building CVS binutils
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  In message <19991230122228.U12629@thepuffingroup.com>you write:
  > > No released version of gcc supports hpux11 yet.
  > 
  > oops, didn't realise that.  i should build binaries on hpux-10 to run
  > them on hpux 11?
It's not the binaries that are the problem, but the changes HP made to their
header files for hpux11.  So using hpux10 binaries doesn't solve the problem.

[ There's some other hpux11 changes that effect C++ and shared libraries, but I
  don't think those changes would effect what you're doing. ]
  

I put hpux11 support into the GCC development tree over the summer; it should
be possible to take that code and retrofit it into gcc-2.95.x.

jeff


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Subject: Re: [parisc-linux] Trouble building CVS binutils
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Xref: news.gmane.org gmane.linux.ports.parisc:6662

On Thu, Dec 30, 1999 at 12:16:55PM -0500, Matthew Wilcox wrote:
> Now back to finding out why nm no longer likes to work on vmlinux...

I'm closer...

in bfd/som.c, function setup_sections(), in the subspace_index loop, around
line 2025 here:

          subspace_asect->alignment_power = log2 (subspace.alignment);
          if (subspace_asect->alignment_power == -1)
            goto error_return;

subspace.alignment is _0_ in one of the subspaces.  HP's nm manages
just fine.  GNU's bails, which actually seems pretty reasonable to me :-)
Two questions spring to mind: 
Why is the linker producing a subspace with an alignment of 0?
What should BFD do when it encounters a file with such an alignment?

I shall continue investigating to see if I can find the answer to #1.


From - Thu Nov 08 21:11:33 2018
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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trouble building CVS binutils
Date: Thu, 30 Dec 1999 12:28:48 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:6663

  In message <19991230141847.W12629@thepuffingroup.com>you write:
  > I'm closer...
  > 
  > in bfd/som.c, function setup_sections(), in the subspace_index loop, around
  > line 2025 here:
  > 
  >           subspace_asect->alignment_power = log2 (subspace.alignment);
  >           if (subspace_asect->alignment_power == -1)
  >             goto error_return;
  > 
  > subspace.alignment is _0_ in one of the subspaces.  HP's nm manages
  > just fine.  GNU's bails, which actually seems pretty reasonable to me :-)
  > Two questions spring to mind: 
  > Why is the linker producing a subspace with an alignment of 0?
  > What should BFD do when it encounters a file with such an alignment?
According to the SOM spec the subspace alignment must be greater than zero.
Thus, this seems like a bug in the HP linker.

jeff

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From: PG40 KCLin <KCLIN@winbond.com.tw>
To: "'hppa-linux@thepuffingroup.com'" <hppa-linux@thepuffingroup.com>
Subject: RE: [hppa-linux] New cross compiling RPMs
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About the source level remote debugger of Windows based version for GNU
cross tools, please reference the web site: http://www.cygnus.com then you
may get more idea about it.

Winbond is one IC maker in Taiwan. We developed the PA-RISC 1.1 architecture
level 0 controller and focus in Embedded controller market. We using the
cross tools (DOS or DOS prompt in Windows based running on PC) provided by
CYGNUS. If you've interested about our chip spec. or develop platform,
please reference our web site at http://www.winbond.com.tw -> select product
overview -> select product information -> select Visual Communication ICs ->
select Embedded Controller then you'll get the chip information and
evaluation kits information.

Because we're interesting the Linux kernel can be run on our platform, if we
can have any contribution in your porting project, please let me know.
Thanks!

Best regards,
James K.C. Lin
Winbond Electronics Corp.
Taiwan, R.O.C.

> ----------
> From: 	Alex deVries[SMTP:adevries@redhat.com]
> Sent: 	Thursday, March 11, 1999 AM 11:18
> To: 	'hppa-linux@thepuffingroup.com'
> Subject: 	RE: [hppa-linux] New cross compiling RPMs
> 
> 
> On Thu, 11 Mar 1999, PG40 KCLin wrote:
> > About the new cross compiler, does it support floating-point emulation
> for
> > PA-RISC 1.1 architecture level 0? In the cross tool, does it support the
> > source level debugger based on Windows? or gdb only?
> 
> I'm not actually quite sure about the answer to this question; certainly
> their is no native floating point support, although there may be
> emulation.
> 
> This should be easy enough to test.
> 
> For the kernel side of things, which is the most immediate concern, we
> don't need floating point yet anyway.
> 
> There's currently no working gdb, although that shouln't be too difficult
> to straighten out either.  I don't know what you mean by the source level
> windows debugger, but I'm interested.
> 
> -= Alex
> 
> -- 
> Alex deVries <puffin@redhat.com>     
> Red Hat Contrib Net maintainer          
> Ottawa, Canada  
> HPPA/Linux Porting Team
> 
> 
> 
> -------------------------------------------------------------------------
> To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

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Subject: Re: [parisc-linux] Trouble building CVS binutils
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On Thu, Dec 30, 1999 at 12:28:48PM -0700, Jeffrey A Law wrote:
> According to the SOM spec the subspace alignment must be greater than zero.
> Thus, this seems like a bug in the HP linker.

OK, it seems we were tripping it with the 2.3 kernel.  We had:

	.SPACE $CODE$
	.SUBSPA $TEXT$
(a function)
	.SUBSPA $DATA$
(some more functions)

Changing this to:
	.SPACE $CODE$
	.SUBSPA $DATA$
(a function)
(some more functions)

seems to work OK.

Thanks to prumpf for his help tracking this down.


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From: <tom@piace.com>
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Subject: Re: [parisc-linux] Thanks...alot
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I don't know what I was thinking.  I was so excited about getting into my
new toy I just wanted to get it working.  It has been along time
since I used ed(like) editors.  I hope to have some time to play with it
after all of the y2krap is over.  I have lots of updated to load on
customers computers, so I don't get to play with mine.  


  

On Thu, 30 Dec 1999, Eric Schnoebelen wrote:

> 
> tom@piace.com writes:
> - I was able to boot into single user mode, and edit the password file.  It
> - took a while to find a terminal program for my computer, that would let me
> - run vi correctly.  Thanks for all your help.
> 
> 	You realize you did more work than required, right??
> Since you were running as root at single user, you could have
> used the `passwd' command to change roots password.
> 
> 	On the other hand, its always good to know enough of
> `ed(1)' to be able to fix things like this no matter what sort
> of terminal you have..
> 
> --
> Eric Schnoebelen		eric@cirr.com 		http://www.cirr.com
> If bankers can count, how come they have eight windows and only four tellers?
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


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Subject: [parisc-linux] Linux version numbers
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Grant asked me to explain Linux kernel version numbering, so here goes:

Linux version numbers are of the form a.b.c.  a.b is a line of
development; so far we've had 0.99, 1.0, 1.1, 1.2, 2.0, 2.1, 2.2 and 2.3.
The .c indicates a release in that line of development.

When b is odd, it signifies that this is a _development_ kernel.  Major
overhauls are made, sometimes without warning.  Not all development
kernels boot or even compile.  Their purpose is to distribute major
changes to the development community in the fastest way possible.
Some people run development kernels on their machine as a matter of
course.  They either know what they're doing and are actively debugging
it or they are 3l33t k1dd13z who think it's cool to run the kernel with
the highest version number available.

Kernels which have an even `b' are stable kernels.  The rate of change
is much much slower, and the changes which are accepted are those
which do not change the behaviour of the kernel core, or are necessary
to fix bugs.  New drivers and new architectures can be added to stable
kernels, provided they don't impact the stability of the overall kernel.
The emphasis here is on making a product that is usable.

You will also see other kernel versions around.  Linus frequently puts
out prereleases like 2.3.35pre3 which are available for really dedicated
testers and so that people can test the validity of big merges they've
done with him.  For example, the 2.3.35pre1 release was for davem to
check that Linus had done the sparc64 merge right.

Alan has done a series for 2.2 where he adds features which Linus
doesn't want to add.  A typical example number would be 2.2.10-ac3.
Some people have imitated this scheme, but it's discouraged for people
to distribute mega-patches as it makes it hard to merge with Linus.

As far as `who is in charge' questions go, Linus always manages the
development branch.  He maintained 2.2 up to 2.2.10 (or thereabouts),
before he passed responsibility over to Alan.  Alan has a fetish for
stable kernels, and maintained 2.0 from 2.0.36 to 2.0.38 before getting
busy with 2.2 and passing 2.0 over to David Weinehall.  Alan also worked
on 1.2.13 fixes for a while, but this is ancient history now :-)

How is Linux/PA-RISC going to fit in?  The current thinking seems to
be that we _need_ page colouring and some other features that impact
the core kernel code.  It's too late in 2.3 development to have these
changes integrated.  It's _probably_ too big a change to go into 2.4
(though I have been surprised at some of the changes which have gone
into 2.2), so I think we'll be merged with the official kernel during
2.5 development.  We will maintain our own patch-set against 2.4 and 2.5,
just as mips, ppc, sparc, m68k and arm have done with 2.2 and 2.3.

This assumes the next stable kernel will be called 2.4.  It could be 3.0
or 9.6 for all I know :-)


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From: Matthew Wilcox <willy@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] termios
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I think the best thing to do with struct termios is to define it in a
way which is compatible with HPUX apps:

#  define NCCS 16

   typedef unsigned int tcflag_t;
   typedef unsigned char cc_t;
   typedef unsigned int speed_t;

#  ifdef _TERMIOS_INCLUDED
     struct termios {
        tcflag_t        c_iflag;        /* Input modes */
        tcflag_t        c_oflag;        /* Output modes */
        tcflag_t        c_cflag;        /* Control modes */
        tcflag_t        c_lflag;        /* Local modes */
        tcflag_t        c_reserved;     /* Reserved for future use */
        cc_t            c_cc[NCCS];     /* Control characters */
     };

As you can see, there are 4 bytes reserved before c_cc starts.  Linux
defines more than 16 NCCS, and also has a 1-byte field for the line
discipline.  So I propose:

struct termios {
        tcflag_t        c_iflag;        /* Input modes */
        tcflag_t        c_oflag;        /* Output modes */
        tcflag_t        c_cflag;        /* Control modes */
        tcflag_t        c_lflag;        /* Local modes */
	cc_t		c_line;		/* Line Discipline */
	cc_t		c_cc[19];	/* Control characters */
};

and then adjust the symbolic constants for VINTR et al to ensure they
still refer to the same offset within the structure.  Any comments?
I hope HP won't mind me using the reserved field in this way.


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From: "Thierry SIMONNET" <t.simonnet@esiee.fr>
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Subject: [parisc-linux] Trouble to generate vmlinux
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I work on a HP712/60 workstation under HPUX 10.20.
I compile with cc, gcc or aCC.

I can't generate vmlinux; I have some Unsatisfied symbols :

......

parisc-linux-ld -R 0xc0010000 -N -e '$START$' arch/parisc/real/realexe.o
arch/parisc/kernel/init_task.o init/main.o init/version.o \
       arch/parisc/boot/ramdisk.o arch/parisc/kernel/kernel.o
arch/parisc/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o \
       fs/filesystems.a \
       net/network.a \
       drivers/block/block.a drivers/gsc/gsc.a drivers/char/char.a
drivers/net/net.a drivers/pci/pci.a \
       /linux/linux/arch/parisc/lib/lib.a /linux/linux/lib/lib.a
/linux/linux/arch/parisc/lib/lib.a \
       -o vmlinux
parisc-linux-ld: Unsatisfied symbols:
   _R_iodc_cons_call (code)
   _R_fault_vector (code)
   _R_pdc_call (code)
make[1]: *** [vmlinux-real] Error 1
make[1]: Leaving directory `/linux/linux'
make: *** [vmlinux] Error 2

I try to modify convert.c without success.

Could you help me?

Thanks

=========================================================
Thierry SIMONNET
Responsable du Service des Moyens Informatiques Gnraux
Groupe ESIEE - CCIP
Cit Descartes - BP 99 - 2 Bd Blaise Pascal
93162 NOISY le Grand cedex
tel: 01 45 92 66 24  fax: 01 45 92 67 99 e-mail:  t.simonnet@esiee.fr
=========================================================








From - Thu Nov 08 21:11:34 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] Trouble to generate vmlinux
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It looks as if you are trying to do a cross-compile which is not supported.
Currently, you must build with gcc and HP's ld under hpux 10.20 (or possibly,
9.X).

> 
> I work on a HP712/60 workstation under HPUX 10.20.
> I compile with cc, gcc or aCC.
> 
> I can't generate vmlinux; I have some Unsatisfied symbols :
> 
> ......
> 
> parisc-linux-ld -R 0xc0010000 -N -e '$START$' arch/parisc/real/realexe.o
> arch/parisc/kernel/init_task.o init/main.o init/version.o \
>        arch/parisc/boot/ramdisk.o arch/parisc/kernel/kernel.o
> arch/parisc/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o \
>        fs/filesystems.a \
>        net/network.a \
>        drivers/block/block.a drivers/gsc/gsc.a drivers/char/char.a
> drivers/net/net.a drivers/pci/pci.a \
>        /linux/linux/arch/parisc/lib/lib.a /linux/linux/lib/lib.a
> /linux/linux/arch/parisc/lib/lib.a \
>        -o vmlinux
> parisc-linux-ld: Unsatisfied symbols:
>    _R_iodc_cons_call (code)
>    _R_fault_vector (code)
>    _R_pdc_call (code)
> make[1]: *** [vmlinux-real] Error 1
> make[1]: Leaving directory `/linux/linux'
> make: *** [vmlinux] Error 2
> 
> I try to modify convert.c without success.
> 
> Could you help me?
> 
> Thanks
> 
> =========================================================
> Thierry SIMONNET
> Responsable du Service des Moyens Informatiques Gnraux
> Groupe ESIEE - CCIP
> Cit Descartes - BP 99 - 2 Bd Blaise Pascal
> 93162 NOISY le Grand cedex
> tel: 01 45 92 66 24  fax: 01 45 92 67 99 e-mail:  t.simonnet@esiee.fr
> =========================================================
> 
> 
> 
> 
> 
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Trouble to generate vmlinux
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"John David Anglin" wrote:
> It looks as if you are trying to do a cross-compile which is not supported.
> Currently, you must build with gcc and HP's ld under hpux 10.20 (or possibly,
> 9.X).

The cross-compile works (or worked). That's my default setup.
I change linux/Makefile with:
	CROSS_COMPILE = parisc-linux-

o only gcc can be used to build kernels.
o "cc" is still needed to generate utilities which run under HP-UX
  (that's HOSTCC in the Makefiles)

"ld" is the exception still because of SOM support. 
But I don't think that's Thierry's problem since the linker
isn't complaining about the object file type...

Which makes me wonder: theirry, what *is* the object file type?
It has to be HP's SOM format. I think the recipe for building
tools includes the changes to do that.

grant

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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From: Mark Wild <M_Wild@tunstall.co.uk>
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Subject: RE: [parisc-linux] Thanks...alot
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> -----Original Message-----
> From: eric@cirr.com [mailto:eric@cirr.com]
> Sent: Thursday, December 30, 1999 4:54 PM
> To: tom@piace.com
> Cc: parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] Thanks...alot 
> 
> 
> 
> tom@piace.com writes:
> - 	Does anyone know if hp has a development version of hpux like
> - sun has with solaris?  If not does anyone know of a way to reset the
> - password from the console.
> 
> 	Depending upon the OS version and the settings, you
> should be able to boot the system to single user mode, and reset
> the password.  I'm a bit out of practice, but if you ``boot
> isl'', and then enter `/hp-ux -is' (for 9.0x) or `/stand/vmunix
> -is' (for 10.20), you should be get a single user prompt,
> without having to enter a password (later OS versions may
> require the root password to enter single user mode.)
> 

<snip>

Being in a similar predicament with a 710 workstation I managed
to get to the ISL prompt but to boot into single user mode
I needed to enter 'HPUX -is /hp-ux'. However, after file system
checking I got a repeated message along the lines of:

INIT: SINGLE USER MODE

This just filled up my screen.

Any suggestions as to what I can do to get root ?

Mark Wild.


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From: "Thierry SIMONNET" <t.simonnet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Trouble booting 712/60 and 710
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I work on HP712/60  and HP710 workstation under HPUX 10.20.
I've done vmlinux and Image.

I can't boot using native HP's bootp daemon. The documentation is a bit
light and the archive doesn't give me any good response.
I try to boot using HP ISL (after using som_relocate), but it fails. In fact
it blocks in real setup.

Could you help me?

TX

=========================================================
Thierry SIMONNET
Responsable du Service des Moyens Informatiques Gnraux
Groupe ESIEE - CCIP
Cit Descartes - BP 99 - 2 Bd Blaise Pascal
93162 NOISY le Grand cedex

tel: 01 45 92 66 24 fax: 01 45 92 67 99 e-mail: t.simonnet@esiee.fr
=========================================================


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From: eric@cirr.com (Eric Schnoebelen)
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Subject: Re: [parisc-linux] Trouble booting 712/60 and 710
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"Thierry SIMONNET" writes:
- I work on HP712/60  and HP710 workstation under HPUX 10.20.
- I've done vmlinux and Image.
- 
- I can't boot using native HP's bootp daemon. The documentation is a bit
- light and the archive doesn't give me any good response.
- I try to boot using HP ISL (after using som_relocate), but it fails. In fact
- it blocks in real setup.

	The 710 is going to use rbootd to network boot.. The 712
should use bootpd.

	Using rbootd for Linux from the puffin site, the configuration
file (rbootd.conf) should look like this:

		08:00:09:16:5e:d7	Image	# puck (hp720)

	Image should be stored in the directory specified by the
rbootd manual page (/usr/mdec/rbootd on my systems.)

	Using bootp on HP-UX, the configuration file
(/etc/bootptab) should look like this:

		test:\
			bf=Image:\
			ht=ether:\
			ha=080009165ed7:\
			ip=192.168.64.1:\
			hd=/:\

	Image should be stored in the root of your tftpd server
directory tree.  tftpd will need to be installed and configured.

[Warning, the bootp configuration file is approximate, as I
can't seem to find my running configuration.. The rbootd
configuration is correct as used by my 720.]


--
Eric Schnoebelen		eric@cirr.com		http://www.cirr.com
"The UNIX PC 3B1: 75% of the power of a VAX-11/780" - Technology Resource Ctr

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From: P G <browndog@home.com>
Organization: @Home Network
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Subject: [hppa-linux] Bootstrap #4 successful
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howdy

Works! - 712/100 Zip Drive 128MB

phil g



------------------------------------------------------------------------------

PARISC/Linux Bootstrap Version 0.2 (interactive)
By Jason Eckhardt
Built Thu Mar 11 16:01:50 CST 1999 by jason@sathanas

IPL_DEBUG: Page zero parameters:
  P0_IMM_max_mem:          134217728 (128 MB)
  P0_BOOTCPU_10msec:       1000000 (100 MHz)
  P0_BOOTCPU_mem_free:     0x00008000
  P0_BOOTCPU_hpa:          0xFFFBE000
  P0_BOOTCPU_pdc:          0xF0010488
  P0_COUT_iodc_io:         0x00008AAC
  P0_CIN_iodc_io:          0x00008000
  P0_BOOTDEV_iodc_io:      0x0000C114
  P0_COUT_class:           0x00000009
  P0_CIN_class:            0x00000008
  P0_BOOTDEV_class:        0x00000001
Reading parameters...done.
Size = 28672 bytes, entry = 0x00001000, location = 0x0001B000.
Loading kernel...done.
Transferring control to kernel.

*********************************************************

VMLINUX 0.0: Dummy kernel image loaded and executing!


It is now safe to reboot.
/

-------------------------------------------------------------------------
To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
`unsubscribe' as the subject.



From - Thu Nov 08 21:11:34 2018
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From: Matthew Wilcox <willy@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] A short note on includes
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Something I've noticed while going through the 2.2 code and modifying
it for 2.3 is that people quite often use

#include <asm/spinlock.h>

instead of

#include <linux/spinlock.h>

It is almost always preferred to use linux/foo instead of asm/foo if
linux/foo exists.  The linux/foo file will perform the <asm/foo> include
to get the arch-specific pieces as necessary.  There's no need to panic
and submit dozens of patches right now (particularly since we're about
to make the 2.3 tree available for public submissions), but I thought
this was a useful thing for people to know for the future.



From - Thu Nov 08 21:11:34 2018
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From: eric@cirr.com (Eric Schnoebelen)
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Subject: Re: [parisc-linux] Thanks...alot
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Mark Wild writes:
- From: eric@cirr.com [mailto:eric@cirr.com]
- > tom@piace.com writes:
- > - 	Does anyone know if hp has a development version of hpux like
- > - sun has with solaris?  If not does anyone know of a way to reset the
- > - password from the console.
- > 
- > 	Depending upon the OS version and the settings, you
- > should be able to boot the system to single user mode, and reset
- > the password.  I'm a bit out of practice, but if you ``boot
- > isl'', and then enter `/hp-ux -is' (for 9.0x) or `/stand/vmunix
- > -is' (for 10.20), you should be get a single user prompt,
- > without having to enter a password (later OS versions may
- > require the root password to enter single user mode.)
- 
- <snip>
- 
- Being in a similar predicament with a 710 workstation I managed
- to get to the ISL prompt but to boot into single user mode
- I needed to enter 'HPUX -is /hp-ux'. However, after file system
- checking I got a repeated message along the lines of:
- 
- INIT: SINGLE USER MODE
- 
- This just filled up my screen.

	Do you get anything besides the above message??  If not,
I'd suggest that either /bin/sh is missing, or HP-UX doesn't
agree with the hardware about where the console is, and the
shell is always getting an EOF when it tries to read the
console.

	At this point, I'd be more towards a missing shell.

	From your boot command line, it sounds like the box is
running 9.0x.  Is this true?

	FYI: 10.20 may still be available for free under HP's Y2K
upgrade program.  I ordered the 10.20 Y2K OS kit on the 30th.  I
haven't seen it yet, but that's another kettle..  Visit
http://www.hp.com/visualize/programs/y2k/y2k_menu/y2k_upgr/oskit.html
for more details.

- Any suggestions as to what I can do to get root ?

	At this point, you probably need to boot off of the
installation media, and try to replace what appears to be a
missing shell.

--
Eric Schnoebelen		eric@cirr.com		http://www.cirr.com
    Celestial navigation is based on the premise that the Earth is the
    center of the universe.  The premise is wrong, but the navigation
    works.  An incorrect model can be a useful tool. -- Kelvin Throop III


From - Thu Nov 08 21:11:35 2018
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From: "Thierry SIMONNET" <t.simonnet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trouble booting 712/60 and 710
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I test the following configuration :
Server : 712/60 with bootpd, HPUX 10.20, IP address 147.215.1.38
Linux workstation : 712/60, IP address 147.215.1.38
I use bootptab file like this :

mkhppa01:\
    ht=ethernet:\
    hd=/tftpboot:\
    bf=Image2:\
    ha=0800096dc1ec:\
    sm=255.255.255.0:\
    gw=147.215.1.1:\
    ds=147.215.1.4:\
    ip=147.215.1.37

I try to boot with any Image by typing : boot lan.147.215.1.38

syslog.log give me :
---- bootpd[5757] : bootsize=1396736 hp->bootsize=1396736
But nothing happens.

TX
----- Original Message -----
From: Eric Schnoebelen <eric@cirr.com>
To: Thierry SIMONNET <t.simonnet@esiee.fr>
Cc: <parisc-linux@thepuffingroup.com>
Sent: Wednesday, January 05, 2000 9:06 PM
Subject: Re: [parisc-linux] Trouble booting 712/60 and 710


>
> "Thierry SIMONNET" writes:
> - I work on HP712/60  and HP710 workstation under HPUX 10.20.
> - I've done vmlinux and Image.
> -
> - I can't boot using native HP's bootp daemon. The documentation is a bit
> - light and the archive doesn't give me any good response.
> - I try to boot using HP ISL (after using som_relocate), but it fails. In
fact
> - it blocks in real setup.
>
> The 710 is going to use rbootd to network boot.. The 712
> should use bootpd.
>
> Using rbootd for Linux from the puffin site, the configuration
> file (rbootd.conf) should look like this:
>
> 08:00:09:16:5e:d7 Image # puck (hp720)
>
> Image should be stored in the directory specified by the
> rbootd manual page (/usr/mdec/rbootd on my systems.)
>
> Using bootp on HP-UX, the configuration file
> (/etc/bootptab) should look like this:
>
> test:\
> bf=Image:\
> ht=ether:\
> ha=080009165ed7:\
> ip=192.168.64.1:\
> hd=/:\
>
> Image should be stored in the root of your tftpd server
> directory tree.  tftpd will need to be installed and configured.
>
> [Warning, the bootp configuration file is approximate, as I
> can't seem to find my running configuration.. The rbootd
> configuration is correct as used by my 720.]
>
>
> --
> Eric Schnoebelen eric@cirr.com http://www.cirr.com
> "The UNIX PC 3B1: 75% of the power of a VAX-11/780" - Technology Resource
Ctr
>
> --------------------------------------------------------------------------

From - Thu Nov 08 21:11:35 2018
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From: Mark Wild <M_Wild@tunstall.co.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Thanks...alot
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> -----Original Message-----
> From: eric@cirr.com [mailto:eric@cirr.com]
> Sent: Thursday, January 06, 2000 3:23 AM
> To: Mark Wild
> Cc: parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] Thanks...alot 
> 
> 
> 
> Mark Wild writes:
> - From: eric@cirr.com [mailto:eric@cirr.com]
> - > tom@piace.com writes:
> - > - 	Does anyone know if hp has a development 
> version of hpux like
> - > - sun has with solaris?  If not does anyone know of a way 
> to reset the
> - > - password from the console.
> - > 
> - > 	Depending upon the OS version and the settings, you
> - > should be able to boot the system to single user mode, and reset
> - > the password.  I'm a bit out of practice, but if you ``boot
> - > isl'', and then enter `/hp-ux -is' (for 9.0x) or `/stand/vmunix
> - > -is' (for 10.20), you should be get a single user prompt,
> - > without having to enter a password (later OS versions may
> - > require the root password to enter single user mode.)
> - 
> - <snip>
> - 
> - Being in a similar predicament with a 710 workstation I managed
> - to get to the ISL prompt but to boot into single user mode
> - I needed to enter 'HPUX -is /hp-ux'. However, after file system
> - checking I got a repeated message along the lines of:
> - 
> - INIT: SINGLE USER MODE
> - 
> - This just filled up my screen.
> 
> 	Do you get anything besides the above message??

No, it just repeatedly produces that message.

>  If not,
> I'd suggest that either /bin/sh is missing, or HP-UX doesn't
> agree with the hardware about where the console is, and the
> shell is always getting an EOF when it tries to read the
> console.

It manages to boot into multi-user mode OK.

> 	At this point, I'd be more towards a missing shell.

I inherited the machine from my University as it was surplus
to requirements due to upgrading. Could it be possible that
the sysadmins have deliberately done this to prevent inquisitive
students ?

> 	From your boot command line, it sounds like the box is
> running 9.0x.  Is this true?

Yes, 9.01.

> 
> 	FYI: 10.20 may still be available for free under HP's Y2K
> upgrade program.  I ordered the 10.20 Y2K OS kit on the 30th.  I
> haven't seen it yet, but that's another kettle..  Visit
> http://www.hp.com/visualize/programs/y2k/y2k_menu/y2k_upgr/oskit.html
> for more details.

I have the upgrade media (P/N B7989AA) but it doesn't seem to
contain anything for a cold install, just patches for 9.x to 10.20
although from previous posts I see some people claim to have done this.

Who did you contact regarding the above link?

> - Any suggestions as to what I can do to get root ?
> 
> 	At this point, you probably need to boot off of the
> installation media, and try to replace what appears to be a
> missing shell.

Hmm, looks like I'm snookered then ...

Thanks,

Mark Wild.


From - Thu Nov 08 21:11:35 2018
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From: "Brian S. Julin" <bri@mojo.calyx.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] where to get som_relocate?
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Where's som_relocate to be found? It's time I gave this 
another yank.

--
Brian S. Julin

On Thu, 9 Dec 1999, Paul Bame wrote:

> = Finally got the build working, but no luck booting
> = (this is a 715/64) with either that or the images
> = on the web site.  IPL encounters an error of some sort,
> = but provides no specifics.  I've only tried booting over 
> = LAN so far.
> 
> If you're using the HPUX boot loader, be sure to run som_relocate
> (which will need re-building to run on hpux 9.x) on vmlinux before
> trying to boot it.
> 
> 	-Paul Bame
> 



From - Thu Nov 08 21:11:35 2018
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From: eric@cirr.com (Eric Schnoebelen)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trouble booting 712/60 and 710
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"Thierry SIMONNET" writes:
- I test the following configuration :
- Server : 712/60 with bootpd, HPUX 10.20, IP address 147.215.1.38
- Linux workstation : 712/60, IP address 147.215.1.38
- I use bootptab file like this :
- 
- mkhppa01:\
-     ht=ethernet:\
-     hd=/tftpboot:\
-     bf=Image2:\
-     ha=0800096dc1ec:\
-     sm=255.255.255.0:\
-     gw=147.215.1.1:\
-     ds=147.215.1.4:\
-     ip=147.215.1.37
- 
- I try to boot with any Image by typing : boot lan.147.215.1.38
- 
- syslog.log give me :
- ---- bootpd[5757] : bootsize=1396736 hp->bootsize=1396736
- But nothing happens.

	How is your tftp server set up??  Is it running chrooted
or not?? If it's running chrooted, the `hd' parameter above is
probably wrong as `bf' is likely in the real location of
`/tftpboot/Image2' and not `<tftpdir>/tftpboot/Image2'.

>From the bootpd manual page on HP-UX 10.20:


	Clients that do not specify boot files in their boot
	requests always elicit a reply from the server.  The exact
	reply depends on the values of the hd and bf tags.  If the
	bf tag specifies an absolute path name, and the file is
	accessible, that path name is returned in the reply packet.
	Otherwise, if the hd and bf tags together specify an
	accessible file, that file name is returned in the reply.
	If a complete file name cannot be determined, or the file is
	not accessible publicly, the reply contains a zeroed-out
	bootfile field.

	If the tftp pseudouser exists, bootpd treats all path names
	(absolute or relative) as being relative to the home
	directory of tftp and checks there first.  If the file is
	not accessible under the tftp home directory or the tftp
	pseudouser does not exist, bootpd checks for the file
	relative to /.


(hmm, the HP version of bootpd is strange, relative to the CMU
edition I'm running on other hosts..)

--
Eric Schnoebelen		eric@cirr.com		 http://www.cirr.com
		"Strange things are afoot at the Circle-K"
			 -- Bill and Ted's Excellent Adventure


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From: eric@cirr.com (Eric Schnoebelen)
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Subject: Re: [parisc-linux] Thanks...alot
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Mark Wild writes:
- From: eric@cirr.com [mailto:eric@cirr.com]
- >  If not,
- > I'd suggest that either /bin/sh is missing, or HP-UX doesn't
- > agree with the hardware about where the console is, and the
- > shell is always getting an EOF when it tries to read the
- > console.
- 
- It manages to boot into multi-user mode OK.

	Do you see any output from the system rc scripts during
multi-user boot??

- > 	At this point, I'd be more towards a missing shell.
- 
- I inherited the machine from my University as it was surplus
- to requirements due to upgrading. Could it be possible that
- the sysadmins have deliberately done this to prevent inquisitive
- students ?

	I suppose it's possible, but I'd venture it unlikely, as
it's a bit more pain than the gain, at least in my opinion..

	You might check to see what interpreter is called out at
the top of /etc/rc.  If it's still /bin/sh, go verify what
/bin/sh points to..

	From a strings on a 9.03 init, it appears that init
might attempt to start /bin/ksh, /bin/csh, /bin/sh, and /bin/su.
You might want to verify the existance of those (/bin/su in
particular).

	The 9.03 init I'm looking at also appears to look for
consoles on /dev/systty, /dev/syscon and /dev/console. You might
verify that they all point to useful locations..

- > 	FYI: 10.20 may still be available for free under HP's Y2K
- > upgrade program.  I ordered the 10.20 Y2K OS kit on the 30th.  I
- > haven't seen it yet, but that's another kettle..  Visit
- > http://www.hp.com/visualize/programs/y2k/y2k_menu/y2k_upgr/oskit.html
- > for more details.
- 
- I have the upgrade media (P/N B7989AA) but it doesn't seem to
- contain anything for a cold install, just patches for 9.x to 10.20
- although from previous posts I see some people claim to have done this.

	As I recall, there were no `patches' to go from 9.0x to
10.20 (given the filesystem was radically reorganized, etc.), so
I would expect that the `Upgrade Media' should be bootable..
Although, I don't have a copy, and you do..

	The P/N I'm looking at on the above mentioned page is
B6815AA, and is listed as including HP-UX 10.20 Core, ACE 9906
Core/Install CD, Quality packs, etc..

- Who did you contact regarding the above link?

	Who ever answered the phone when I called the US
fulfillment phone number (1800.386.1117, ext 4).  Karen, I
believe.  I'm sure there is another fulfillment operation in the
UK or Europe that could help you out (although I don't see such
phone numbers listed.)

- > - Any suggestions as to what I can do to get root ?
- > 
- > 	At this point, you probably need to boot off of the
- > installation media, and try to replace what appears to be a
- > missing shell.
- 
- Hmm, looks like I'm snookered then ...

	Possibly..

--
Eric Schnoebelen		eric@cirr.com		 http://www.cirr.com
		"Strange things are afoot at the Circle-K"
			 -- Bill and Ted's Excellent Adventure


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Subject: Re: [parisc-linux] where to get som_relocate?
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= 
= Where's som_relocate to be found? It's time I gave this 
= another yank.

start at ftp://puffin.external.hp.com/pub/parisc/

	-P


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Subject: RE: [parisc-linux] Thanks...alot
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> -----Original Message-----
> From: eric@cirr.com [mailto:eric@cirr.com]
> Sent: Thursday, January 06, 2000 9:08 PM
> To: Mark Wild
> Cc: parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] Thanks...alot 
> 
> 
> 
> Mark Wild writes:
> - From: eric@cirr.com [mailto:eric@cirr.com]
> - >  If not,
> - > I'd suggest that either /bin/sh is missing, or HP-UX doesn't
> - > agree with the hardware about where the console is, and the
> - > shell is always getting an EOF when it tries to read the
> - > console.
> - 
> - It manages to boot into multi-user mode OK.
> 
> 	Do you see any output from the system rc scripts during
> multi-user boot??

Yes. It performs a quota check etc, gets to a console login before
X kicks in.
 
> - > 	At this point, I'd be more towards a missing shell.
> - 
> - I inherited the machine from my University as it was surplus
> - to requirements due to upgrading. Could it be possible that
> - the sysadmins have deliberately done this to prevent inquisitive
> - students ?
> 
> 	I suppose it's possible, but I'd venture it unlikely, as
> it's a bit more pain than the gain, at least in my opinion..
> 
> 	You might check to see what interpreter is called out at
> the top of /etc/rc.  If it's still /bin/sh, go verify what
> /bin/sh points to..

How can I do that? I'm not familiar with all the options/commands
of the hpux command from the ISL prompt.

> 	From a strings on a 9.03 init, it appears that init
> might attempt to start /bin/ksh, /bin/csh, /bin/sh, and /bin/su.
> You might want to verify the existance of those (/bin/su in
> particular).

> 	The 9.03 init I'm looking at also appears to look for
> consoles on /dev/systty, /dev/syscon and /dev/console. You might
> verify that they all point to useful locations..

OK. I'll check these.

<snip>

Cheers, Mark.


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Mark Wild writes:
- From: eric@cirr.com [mailto:eric@cirr.com]
- > 	You might check to see what interpreter is called out at
- > the top of /etc/rc.  If it's still /bin/sh, go verify what
- > /bin/sh points to..
- 
- How can I do that? I'm not familiar with all the options/commands
- of the hpux command from the ISL prompt.

	I was suggesting you do that from a multi-user login
(assuming you've got one.. perhaps a rash assumption..)

--
Eric Schnoebelen		eric@cirr.com		http://www.cirr.com
	"The steady state of disks is full." -- Ken Thompson

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Works fine for me now.  I must have messed up the previous try, it
now boots up very quickly and gives me the spinning \|/- stuff.

							- Paul

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On Fri, Jan 07, 2000 at 09:52:30AM -0600, Eric Schnoebelen wrote:
> 
> Mark Wild writes:
> - From: eric@cirr.com [mailto:eric@cirr.com]
> - > 	You might check to see what interpreter is called out at
> - > the top of /etc/rc.  If it's still /bin/sh, go verify what
> - > /bin/sh points to..
> - 
> - How can I do that? I'm not familiar with all the options/commands
> - of the hpux command from the ISL prompt.
> 
> 	I was suggesting you do that from a multi-user login
> (assuming you've got one.. perhaps a rash assumption..)

Mark, you seem  to be in the same situation I was, witha similarly
decommissioned 730 (academic leftover): no root, no account at all! It
booted to a X/OpenVue login screen just fine, however. (Had to take it
down hard with the toc switch, after that.)

Not knowing any of the HP-UX specific tricks, I fell back on a maxim
from computer security: 'There is no computer security without physical
security.'

I yanked the boot HD, dropped it onto the SCSI chain of my linux box,
used grep on the 'raw' block device as so:

grep -ba 'root:[^:]\{13\}:'

to find all occurences of something that looked like a root passwd entry,
with crypt()ed password, and fired up lde (Linux Disk Editor) to change
it to the hash for a password I knew. Worked great!  Strangely enough,
I found 6 copies, with three different passwords.

Once logged in as root, I used the standard utilities to change passwords
again, just in case there was something I missed.

Ross

P.S. 
Later, I aquired the Y2K 9.X->10.20 upgrade kit, with the core 10.20
CD. You just need to call the HP fulfillment desk, and give them the
part number from the web site. I order it on 12/7, they shipped 12/14,
FEDEX, so charge. I even recieved and invoice for part B6815AA, cost 0.00
Unfortunately, it's not bootable on a 730. Oh, the webpage that mentions
all this:

http://www.hp.com/visualize/programs/y2k/y2k_menu/y2k_upgr/oskit.html

It give an 800 number for calling from the U.S. You'll have to trackdown
HP UK number to call, I'm afraid.

-- 
Ross J. Reedstrom, Ph.D., <reedstrm@rice.edu> 
NSBRI Research Scientist/Programmer
Computer and Information Technology Institute
Rice University, 6100 S. Main St.,  Houston, TX 77005


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From: Matthew Wilcox <willy@thepuffingroup.com>
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Summary of the telephone meeting held 7/Jan/2000.

Participants:

Michael Ang
Paul Bame
Grant Grundler
R. Scott Holbrooke
David Kennedy
John Marvin
Martin Peterson
Philipp Rumpf
Alex deVries
Matthew Wilcox

1. The Linux 2.3 tree will be opened up today for the general public.

2. The PCI code compiles but has not yet been tested.  Extra work will
   need to be done to support PAT PDC, and Grant will look into this.

3. David will get the Tulip driver working.

4. Martin volunteered to take care of the serial driver problems we are
   experiencing

5. John & Philipp will work on the TLB miss handlers which are currently
   limiting development in a couple of areas.

6. Matthew will work on the proper syscall code.

7. Philipp has the fork() code working, and will next examine exec().

8. Scott volunteered to take care of writing TCP and UDP checksumming
   routines in PA-RISC assembler.

9. Matthew will arrange for a suitable `ifconfig' binary to be available
   for the purposes of testing the network driver.

10. Michael will work on implementing more HPUX syscalls in Linux to
    allow Apache to work.

11. David volunteered to set up a random config test system.

12. Matthew will remove some config options which are known to not work
    (and are unlikely to work in the near future).

13. Grant is currently building a 712 system for Sammy who will be
    transferring his energies from the sun3 port.

14. Frank Rowand is leaving HP.  He has a couple of loan machines
    and may continue to contribute to the port if he has spare time.
    Paul volunteered to liase with Frank to look at the kernel debugger
    code that Frank had written.

15. We discussed a possible hackfest in Fort Collins, and agreed to it
    in principle, but not before Feb 1st.


P.S.  I was tempted to start this email with `The Linux/PA-RISC Core
Team had a Secret Meeting and have deigned to share the results with the
Unwashed Masses', but given how much trouble my last sarcastic comment
caused, I decided to refrain.


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From: Paul Bame <bame@endor.fc.hp.com>
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Subject: [parisc-linux] Dual boot?
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How do people feel about boot models for parisc in the future, for
people who aren't developers?  For the moment I want to ignore whether
we *could* support the model and ignore the technical implications too.

My uninformed guess is that most people will either run Linux or HP-UX
but not dual-boot both on the same hardware.

If a robust dual-boot model for "the masses" can be avoided, it would
simplify some things.  For those of us who *need* dual boot
for development, ramdisks+UFS and/or second disk drives may be
an acceptable inconvenience.

What do people think?

	-Paul Bame


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From: Michael Schulz <micha28@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 9000/712 & Samsung Monitor
Date: Sat, 8 Jan 2000 03:15:37 +0100
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Hello,

I can get a 712/60 almost complete, but without a monitor.
So my question is, is it possible to connect a Samsung
Syncmaster 17GLsi with the HP.
Specs:
  Horiz: 30kHz to 85kHz
  Vert: 50Hz to 120Hz
  Max. Res. 1280 x 1024
  Pix Clk: 135MHz

I never called a HP 9000 my own (only i86 and an Alpha, 100% MS
free) so I don't know so much about HP's.
Thanks for your answer,

Michael

BTW: If my English was to bad, please forgive me. This Wine from
New Zealand was to good to say no. I envy all you "New
Zealander's". Is there a Job for me in NZ;-)

-- 
You know like - this band sucks.
But it's like they suck like a new way here.
Like - they suck in ways we haven't like seen stuff suck before,
so it's like pretty cool.  (Butthead)


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From: eric@cirr.com (Eric Schnoebelen)
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Subject: Re: [parisc-linux] 9000/712 & Samsung Monitor
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Michael Schulz writes:
- I can get a 712/60 almost complete, but without a monitor.
- So my question is, is it possible to connect a Samsung
- Syncmaster 17GLsi with the HP.
- Specs:
-   Horiz: 30kHz to 85kHz
-   Vert: 50Hz to 120Hz
-   Max. Res. 1280 x 1024
-   Pix Clk: 135MHz

	It should work..  The 712 will detect that the monitor
cannot support a given frequency, and start cycling through the
valid settings.  When you can see one you like, I believe you
press space or enter, and it is selected..

--
Eric Schnoebelen		eric@cirr.com		http://www.cirr.com
      Where subtlety fails us we must simply make do with cream pies.


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From: Steven Pritchard <steve@silug.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 9000/712 & Samsung Monitor
Date: Fri, 7 Jan 2000 22:49:12 -0600 (CST)
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Michael Schulz said:
> I can get a 712/60 almost complete, but without a monitor.
> So my question is, is it possible to connect a Samsung
> Syncmaster 17GLsi with the HP.

I don't know the first thing about 712s, but I was amazed to discover
that if you do "path console graphics.7" (and then "reset") at the
"BOOT_ADMIN>" prompt on a 715/100, you'll get 640x480 graphics
suitable for a VGA monitor.  Doing "path console graphics" lists the
various choices...

BOOT_ADMIN> path console graphics
        Monitor Choices
Type     Resolution     Frequency
----     ----------     ---------
  1      1280x1024        72Hz
  2      1024x768         75Hz
  3      1024x768         70Hz
  4      1024x768         75Hz     Flat Panel
  5      1280x1024        60Hz
  6      1024x768         60Hz
  7       640x480         60Hz
  8      1280x1024        75Hz     VESA
  9      1024x768         75Hz     VESA
 10       800x600         75Hz     VESA
 11       640x480         75Hz     VESA
 12      1280x1024        72Hz     Greyscale
 13      1280x1024        50Hz

If a 712/60 will do the same, then surely when of the lower
resolutions or frequencies would work...

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(217)698-1694             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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From: "Nathaniel F. Thompson" <haplo@frii.com>
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Subject: Re: [parisc-linux] 9000/712 & Samsung Monitor
Date: Sat, 8 Jan 2000 17:41:20 -0700 (MST)
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It does work the same on a 712.  To save the typing at the BOOT_ADMIN
prompt, just hit tab as it comes up.  This will force it to cycle through
different frequencies.  I have seen many machines at work that won't cycle
unless you hit tab, and some that will auto cycle.  

Nate

On Fri, 7 Jan 2000, Steven Pritchard wrote:

> Michael Schulz said:
> > I can get a 712/60 almost complete, but without a monitor.
> > So my question is, is it possible to connect a Samsung
> > Syncmaster 17GLsi with the HP.
> 
> I don't know the first thing about 712s, but I was amazed to discover
> that if you do "path console graphics.7" (and then "reset") at the
> "BOOT_ADMIN>" prompt on a 715/100, you'll get 640x480 graphics
> suitable for a VGA monitor.  Doing "path console graphics" lists the
> various choices...
> 
> BOOT_ADMIN> path console graphics
>         Monitor Choices
> Type     Resolution     Frequency
> ----     ----------     ---------
>   1      1280x1024        72Hz
>   2      1024x768         75Hz
>   3      1024x768         70Hz
>   4      1024x768         75Hz     Flat Panel
>   5      1280x1024        60Hz
>   6      1024x768         60Hz
>   7       640x480         60Hz
>   8      1280x1024        75Hz     VESA
>   9      1024x768         75Hz     VESA
>  10       800x600         75Hz     VESA
>  11       640x480         75Hz     VESA
>  12      1280x1024        72Hz     Greyscale
>  13      1280x1024        50Hz
> 
> If a 712/60 will do the same, then surely when of the lower
> resolutions or frequencies would work...
> 
> Steve
> -- 
> steve@silug.org           | Linux Users of Central Illinois
> (217)698-1694             | Meetings the 4th Tuesday of every month
> Steven Pritchard          | http://www.luci.org/ for more info
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


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> -----Original Message-----
> From: Ross J. Reedstrom [mailto:reedstrm@wallace.ece.rice.edu]
> Sent: Friday, January 07, 2000 5:34 PM
> To: Mark Wild
> Cc: parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] Thanks...alot
> 
> 
> On Fri, Jan 07, 2000 at 09:52:30AM -0600, Eric Schnoebelen wrote:
> > 
> > Mark Wild writes:
> > - From: eric@cirr.com [mailto:eric@cirr.com]
> > - > 	You might check to see what interpreter is called out at
> > - > the top of /etc/rc.  If it's still /bin/sh, go verify what
> > - > /bin/sh points to..
> > - 
> > - How can I do that? I'm not familiar with all the options/commands
> > - of the hpux command from the ISL prompt.
> > 
> > 	I was suggesting you do that from a multi-user login
> > (assuming you've got one.. perhaps a rash assumption..)
> 
> Mark, you seem  to be in the same situation I was, witha similarly
> decommissioned 730 (academic leftover): no root, no account at all! It
> booted to a X/OpenVue login screen just fine, however. (Had to take it
> down hard with the toc switch, after that.)

Yep.

> Not knowing any of the HP-UX specific tricks, I fell back on a maxim
> from computer security: 'There is no computer security 
> without physical
> security.'
> 
> I yanked the boot HD, dropped it onto the SCSI chain of my linux box,
> used grep on the 'raw' block device as so:
> 
> grep -ba 'root:[^:]\{13\}:'
> 
> to find all occurences of something that looked like a root 
> passwd entry,
> with crypt()ed password, and fired up lde (Linux Disk Editor) 
> to change
> it to the hash for a password I knew. Worked great!  Strangely enough,
> I found 6 copies, with three different passwords.
> 
> Once logged in as root, I used the standard utilities to 
> change passwords
> again, just in case there was something I missed.

Thanks for that, it worked a treat. I didn't have lde installed
on my linux machine so I used dd to copy it to another hd doing
a search & replace on the root password.

Mark.


From - Thu Nov 08 21:11:36 2018
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From: Matthew Wilcox <willy@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Linux 2.3
Date: Mon, 10 Jan 2000 20:37:59 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:6692


Everyone should now switch development to the linux 2.3 tree which is
in CVS.  How do you do this?

Set your CVSROOT as described on the pages.
cvs co linux-2.3
cd linux-2.3
(fetch a ramdisk.bin and put it in this directory)
make oldconfig
make dep
make Image
cp arch/parisc/boot/Image to wherever you tftpboot from.
Watch your machine crash.

It may get as far as a prompt for you; but even if it doesn't, it should
still get quite some way.  Many configurations will not work, and some
may not compile; I ensured that the defconfig will at least link.


From - Thu Nov 08 21:11:36 2018
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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Linux 2.3
Date: Tue, 11 Jan 2000 03:59:22 -0800 (PST)
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Xref: news.gmane.org gmane.linux.ports.parisc:6693

Could someone please update the procedure of saving
the whole cvs tree linux-2.3 to
ftp://puffin.external.hp.com/pub/parisc/cvs/ as a
tar.gz file for initial cvs checkout ?

Ulrich
--- Matthew Wilcox <willy@thepuffingroup.com> wrote:
> 
> Everyone should now switch development to the linux
> 2.3 tree which is
> in CVS.  How do you do this?
> 
> Set your CVSROOT as described on the pages.
> cvs co linux-2.3
> cd linux-2.3
> (fetch a ramdisk.bin and put it in this directory)
> make oldconfig
> make dep
> make Image
> cp arch/parisc/boot/Image to wherever you tftpboot
> from.
> Watch your machine crash.
> 
> It may get as far as a prompt for you; but even if
> it doesn't, it should
> still get quite some way.  Many configurations will
> not work, and some
> may not compile; I ensured that the defconfig will
> at least link.
> 
>
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> 
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Organization: dman's, inc.
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Subject: [hppa-linux] Boot #4
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worked fine, 712/100, 128ram, external scsi

dman

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From - Thu Nov 08 21:11:36 2018
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From: Philipp Rumpf <prumpf@mkp.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C360 shellprompt
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Just so you all know, we get to a shell prompt on the C360 after the
changes which I'm about to commit (blame slow dialup lines).  I would
like to know whether we get to a prompt on other PA2.0 machines as well.

When testing, please keep in mind most "kernel doesn't print anytihng"
problems are problems in the .config rather than kernel bugs.  Start
with the defconfig and modify as little as possible.  Also, the most
likely cause for non-reproducible failures is page colouring problems
so try 3-4 times.

Anyway, on Lasi-based machines such as the C360 you should be able to
do anything you can do on the 712 right now (-ls, fork() but not exec(),
rebooting the machine with SysRq-B), just a lot faster.

	Philipp Rumpf


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From: Phil Schwan <phil@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Linux 2.3
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On Jan 11, Ulrich Strelow wrote:
> Could someone please update the procedure of saving
> the whole cvs tree linux-2.3 to
> ftp://puffin.external.hp.com/pub/parisc/cvs/ as a
> tar.gz file for initial cvs checkout ?

Done; I'm forcing the script to run now, it should appear on the FTP
site within a few minutes.  The tree will also appear in Bonsai within
the hour.

-Phil

-- 
Phil Schwan, Senior Linux Consultant, Linuxcare, Inc.
415.354.4878 x271 tel, 415.701.7457 fax
pschwan@linuxcare.com http://www.linuxcare.com/
Linuxcare.  At the centre of Linux.


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There've been rumors of a shell prompt with 2.3 but I haven't seen it.

Apparently there are still some secrets not widely shared about how
to make this stuff work which I don't know yet, but attached is a
.config file which at least caused me to see some output (and no
shell prompt).  Run this
with a linux command line including "console=tty".  After some
somewhat sane output minicom gets pretty confused :-)  It works
better on a graphics console than on serial.

	-Paul Bame

#
# Automatically generated make config: don't edit
#

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# CPU type
#
CONFIG_PA7100=y
CONFIG_PA7300=y
CONFIG_PA_1x=y
CONFIG_PA_11=y
# CONFIG_SMP is not set
CONFIG_GSC=y
# CONFIG_GSC_DINO is not set
CONFIG_GSC_LASI=y
CONFIG_HIL=y

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# General setup
#
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_BINFMT_SOM=y
# CONFIG_BINFMT_ELF is not set
# CONFIG_BINFMT_MISC is not set
# CONFIG_BINFMT_JAVA is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_IDE is not set

#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_HD_ONLY is not set

#
# Additional Block Devices
#
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_MD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_BLK_DEV_XD is not set
CONFIG_PARIDE_PARPORT=m
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set

#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_NETLINK is not set
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
# CONFIG_UNIX is not set
# CONFIG_INET is not set
# CONFIG_ATM is not set

#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_BRIDGE is not set
# CONFIG_LLC is not set
# CONFIG_ECONET_AUNUDP is not set
# CONFIG_ECONET_NATIVE is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# SCSI support
#
# CONFIG_SCSI is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
CONFIG_APRICOT=y
CONFIG_DEC_ELCP=y

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_SERIAL=y
# CONFIG_SERIAL_CONSOLE is not set
CONFIG_SERIAL_EXTENDED=y
# CONFIG_SERIAL_MANY_PORTS is not set
# CONFIG_SERIAL_SHARE_IRQ is not set
# CONFIG_SERIAL_DETECT_IRQ is not set
# CONFIG_SERIAL_MULTIPORT is not set
# CONFIG_HUB6 is not set
# CONFIG_SERIAL_GSC is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
# CONFIG_PRINTER is not set
# CONFIG_PPDEV is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set

#
# Video For Linux
#
# CONFIG_VIDEO_DEV is not set

#
# Joystick support
#
# CONFIG_JOYSTICK is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_DRM is not set

#
# PCMCIA character device support
#
# CONFIG_PCMCIA_SERIAL_CS is not set

#
# Filesystems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_UDF_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set

#
# Network File Systems
#

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_NLS is not set
# CONFIG_SOUND is not set

#
# Console drivers
#

#
# Frame-buffer support
#
# CONFIG_FB is not set
CONFIG_PDC_CONSOLE=y
CONFIG_IODC_CONSOLE=y

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y


From - Thu Nov 08 21:11:36 2018
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From: Jerry Huck <huck@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PA-RISC 2.0 updates
Date: Tue, 11 Jan 2000 17:15:54 -0800 (PST)
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Xref: news.gmane.org gmane.linux.ports.parisc:6697

If you are working on porting to PA-RISC 1.1 or 2.0,
there are some architecture reference documents on
the web that may be useful to you.

The complete text of the latest versions of the 1.1 and 2.0
architecture manuals are online, in html form.  Additionally,
we've annotated the 2.0 book with all errata, and the
small number of architecture changes which have been made
since the book was published.

You can find these documents at this address:

   http://devresource.hp.com/devresource/Docs/Refs/PA1_1/index.html

Happy porting!

Jerry Huck
PA-RISC and IA-64 Architecture


From - Thu Nov 08 21:11:36 2018
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From: Philipp Rumpf <prumpf@mkp.net>
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Subject: [parisc-linux] C360 shellprompt
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Just so you all know, we get to a shell prompt on the C360 after the
changes which I'm about to commit (blame slow dialup lines).  I would
like to know whether we get to a prompt on other PA2.0 machines as well.

When testing, please keep in mind most "kernel doesn't print anytihng"
problems are problems in the .config rather than kernel bugs.  Start
with the defconfig and modify as little as possible.  Also, the most
likely cause for non-reproducible failures is page colouring problems
so try 3-4 times.

Anyway, on Lasi-based machines such as the C360 you should be able to
do anything you can do on the 712 right now (-ls, fork() but not exec(),
rebooting the machine with SysRq-B), just a lot faster.

	Philipp Rumpf


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From: Eric Molitor <emolitor@molitor.org>
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Subject: [parisc-linux] Bad news, Bad news, Good news, Good news
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Bad news: http://thepuffingroup.com/parisc/hw.html is throwing up all
sorts of MySQL socket errors

Bad news: My HP/UX 9.xx is no longer functional :(

Good news: I was able to boot into some of the older images

Good news: I should have a copy of HP/UX 10.20 on the 15.

- Eric Molitor
  eric@molitor.org


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On Wed, 12 Jan 2000, Eric Molitor wrote:

> 
> Bad news: http://thepuffingroup.com/parisc/hw.html is throwing up all
> sorts of MySQL socket errors

Ick.  My bad.  I have fixed it.

Thanks for the bug report.

-- 
David Kennedy
The Puffin Group


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From: Matthew Wilcox <willy@thepuffingroup.com>
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Subject: Re: [parisc-linux] C360 shellprompt
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On Tue, Jan 11, 2000 at 03:53:21PM +0100, Philipp Rumpf wrote:
> Just so you all know, we get to a shell prompt on the C360 after the
> changes which I'm about to commit (blame slow dialup lines).  I would
> like to know whether we get to a prompt on other PA2.0 machines as well.

On the C3000, there is a problem with calling the pdc, as we discussed
offline.  With the calls to the PDC commented out, we get past the
`POSIX Conformance Testing by UNIFIX' line:

after __k_t (1)
554
556
558
after __k_t (0)
766
618
628
630
641
645
651
bad magic 6a930530 (should be c0030a80), wq bug, forcing oops.


On the L-class (ok, just for a giggle, and the room was too cold :-) :

Transferring control to kernel. (At entry point 0x00010000)
!.
************* SYSTEM ALERT **************
SYSTEM NAME: uninitialized
DATE: 01/12/2000 TIME: 21:22:19
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         FLASH     OFF        ON

0x0000307000FF6292 00000000 00000000 - type  0 = Data Field Unused
0x5800387000FF6292 00006400 0C151613 - type 11 = Timestamp 01/12/2000 21:22:19
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:

which is not something I've seen before.  Is this at all familiar to
someone else?  This is presumably being generated by the PAT PDC, so
maybe someone with N-class experience could tell me a bit about it?


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Subject: Re: [parisc-linux] C360 shellprompt
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On Wed, Jan 12, 2000 at 04:41:52PM -0500, Matthew Wilcox wrote:
[...]
> bad magic 6a930530 (should be c0030a80), wq bug, forcing oops.

Found this one.  It's my fault in the HIL driver.  Turn off CONFIG_HIL
and things progress further:

execve /sbin/init c00df008 c00df030
do_execve
reading c005cf70 cffe8808 cffe85c8 128
pgc bad case
getting new pages ...
got c144c040 to c144c43c
gcp 00000000 19 0 = c144c040 (c005cc7c)
readpage: c006ddc8
page_ok
returned 128
02100108 05124000 00000000 00000000
00000000 00000000 000039c3 00000080
000000b4 00045574 40006d38 00000138
00000004 000001c8 00000013 000004fc
00000000 000004fc 000001e8 000004c0
00000003 000006e4 00000000 000006e4
00000000 000006e4 00000000 000006e4
00000000 00045000 00000574 4702100b
gcp 2001f000 19 0 = c144c43c (c007277c)

[ i thought that bit might be of interest ]

map_som_binary
do_mmap cff260e0 00001000 0003f000 00000005 00001806 00000000
miscoloured mmap
do_mmap cff260e0 40001000 00006000 00000007 00001806 0003f000
miscoloured mmap
do_mmap 00000000 40007000 0000f000 00000007 00000006 00000000
miscoloured mmap

which looks slightly offputting.

stack_base 2001f000 cff1f000
mem_map disagrees with c144c43c at 2001f000
set_pte cff2007c 0ff1f047
create_som_tables
sp 2001ffd8
hey.

the `disagrees' part made me snip this little section out.

The last lines before I get nothing more reads:

gcp 0000e000 19 0 = c144c3f8 (c005bb9c)
pgc bad case
getting new pages ...
got c144b7c0 to c144bbbc
gcp 0000f000 19 0 = c144bbbc (c005bb9c)
gcp 00003000 21 0 = c144b88c (c005d550)
new_page c144b88c flags 00000000
new_page c144b88c flags 00000000
cfef3000 cff12000
new_page c144b88c flags 00000000
new_page c144b88c flags 00000000
set_pte cff0f00c 0fef300b

so i don't actually get a prompt on the c3k, but we're closer.
On the A180, it stops right before the `hey'.  It has the same
value for `sp' as the C3k.


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From: Paul Bame <bame@endor.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.3 whining
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A lot of code cleanup occurred and several defects were fixed in 2.2
since the beginning of December.  Much of this effort (my effort is
why I'm upset, and some good efforts by John David Angelin too) is now
gone.  The dirty code and defects, which *were* fixed, are now holding
us all back in 2.3!  Things could've been done better.

When the 2.3 CVS tree was started, it would've been better to copy the
RCS files (and tag the 2.2 ones) instead of checking in a newly-numbered
revision with no past
history attached.  Because of the way it was done, it's unnecessarily
difficult to tell which 2.2 file version was used to begin the
2.3 port (because all the versions are 1.1 again), and thus
difficult to figure out which changes need to be re-merged.  Also the
comments from the previous authors have been lost in the 2.3 tree.

In going to 2.3 the realmode embedded executable stuff I designed has
been obliterated.  I don't know how this was decided but I was not part
of the decision.  Even though it might be the right long-term answer,
consequently we now have fragile real-mode C code as we had before, so it
is not a simple matter to re-merge the 2.2 fixes into 2.3
because you're working against the compiler and some other structural
differences, leaving us with a nice mess.  (jsm thought up a nice
way to avoid my realmode hack, but I have no incentive to
start coding that to see it disappear too).

If my hacking is unhelpful to palinux, I would prefer knowing
that *before* making changes rather than finding out *after*
doing a bunch of work and watching it disappear.

I'm owed an explanation of why the realmode embedded executable
was wrong for the project and is now gone.
And an explanation of why the defects and improvements
I (and JDA) contributed were wrong for the project too.  I'm willing
to learn.

        -P

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Hi!

Tested bootstrap #4 with 735 (rbootd) and it worked OK.

- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


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From: Matthew Wilcox <willy@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.3 whining
Date: Thu, 13 Jan 2000 11:43:13 -0500
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In-Reply-To: <E128mPU-0000c6-00@endor.fc.hp.com>; from Paul Bame on Thu, Jan 13, 2000 at 08:43:40AM -0700
Xref: news.gmane.org gmane.linux.ports.parisc:6704

On Thu, Jan 13, 2000 at 08:43:40AM -0700, Paul Bame wrote:
> A lot of code cleanup occurred and several defects were fixed in 2.2
> since the beginning of December.  Much of this effort (my effort is
> why I'm upset, and some good efforts by John David Angelin too) is now
> gone.  The dirty code and defects, which *were* fixed, are now holding
> us all back in 2.3!  Things could've been done better.

It isn't gone.  It's all still there in the 2.2 tree.  All that needs to
be done is to move the fixes across to the 2.3 tree.  There are plenty of
examples of this sort of thing in regular Linux development.  Just ask
Alan; he's moved fixes from 2.0 to 2.2 and is right now moving fixes
to 2.3 from the 2.2 branch.  I appreciate it's not a simple process,
but it's a lot easier than tracking down all the bugs again by hand.
I attempted to reinsert some of your changes, but I really didn't
understand the code well enough to do it.

> When the 2.3 CVS tree was started, it would've been better to copy the
> RCS files (and tag the 2.2 ones) instead of checking in a newly-numbered
> revision with no past
> history attached.  Because of the way it was done, it's unnecessarily
> difficult to tell which 2.2 file version was used to begin the
> 2.3 port (because all the versions are 1.1 again), and thus
> difficult to figure out which changes need to be re-merged.  Also the
> comments from the previous authors have been lost in the 2.3 tree.

The trouble is that doing it the way you suggest was almost impossible.
The only realistic way to get the 2.3 stuff running was to  apply the
diff between 2.2.x and the parisc tree to Linus' 2.3 tree which is not
maintained in CVS.  As a result, yes, we lost the tags.  I did attempt
to explain to you that we can retrieve diffs between any given date that
you want; such as the start of December and now in the 2.2 tree.

Those $Log$ comments are a really bad idea, btw.  They grow too long
and contain too much irrelevant crap.  If you want to write a comment,
add it manually.

> And an explanation of why the defects and improvements
> I (and JDA) contributed were wrong for the project too.  I'm willing
> to learn.

They weren't wrong for the project, they just slipped into a crack.
If I understood this section of the kernel well enough, I would have
added them back before we opened the 2.3 tree.


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From: Paul Bame <bame@endor.fc.hp.com>
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Subject: Re: [parisc-linux] 2.3 whining
Date: Thu, 13 Jan 2000 10:37:13 -0700
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My point isn't that we *can* recover, since surely we will.  Nor is
it about mechanistic CVS procedures, with which I'm familiar enough
to do date-based diffs and merges.

In *effect* we reverted a lot of code -- trashing our own efforts
without a good reason that I've heard.  "Falling through the cracks" is not
something I allow from our caliber of folk.  Whenever we revert someone's
code, especially without consultation with them, we make a pretty
clear statement about how much we don't value their effort.  AND if
there was value in the lost code, we have a bunch of re-work to do
thus the project loses ground.  It hurts the people AND the project.

When I was doing the embedded realmode stuff, which took me quite a
while, I thought it was my duty to continually bring in the changes
others were making to those same files, so that when I committed we
would have the product of all the authors' efforts, not just mine.
The lesson I could take from our 2.3 code reversion is that I
needn't bother eh?

As for $Log$, I abhor using that in source code.  But I think the
check-in comments, aka from 'cvs log', are a valuable part of the
authors contribution, and reverting them is just as damaging and
insulting as reverting the code itself.

I can start putting my 2.2 changes back into 2.3, but since I don't
know the reason for their reversion, I really don't have a good
basis upon which to select which features to bring forward and which
to leave.  Without the realmode hack some of the features we had in
2.2 can't be coded in C.  Should I re-hack the realmode thing or
something which solves the same problem?  Will *that* just get reverted
too?

The mechanistic details of diffs and merges are not the issue here.

		-P

P.S. I wish we had started the 2.3 port like this:

on puffin.external.hp.com:

cp -r /home/cvs/parisc/linux/arch/parisc /home/cvs/parisc/linux-2.3/arch
cp -r /home/cvs/parisc/linux/include/asm/parisc /home/cvs/parisc/linux-2.3/asm


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From: tor@spacetec.no (Tor Arntsen)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.3 whining
Date: Thu, 13 Jan 2000 21:42:54 +0100
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       "Re: [parisc-linux] 2.3 whining" (Jun  5, 12:25)
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Xref: news.gmane.org gmane.linux.ports.parisc:6706

I'll leave the rest of the CVS discussions to you guys, however:

On Jun 5, 12:25, Matthew Wilcox wrote:
>Those $Log$ comments are a really bad idea, btw.  They grow too long
>and contain too much irrelevant crap.  If you want to write a comment,
>add it manually.

This point cannot be stressed enough. $Log$ is an *extremely* bad idea
if you use CVS (it was an ok feature for RCS).  Among other things it makes 
merges between CVS branches a nightmare: whenever you merge you will get a
conflict in the $Log$ entries which has to be fixed manually, then you 
commit the fixed file, which adds *another* $Log$ entry etc. 
You will have to manually edit *every single changed file* when you merge, 
you lose CVS's otherwise quite good merging capabilities.

It's a good idea to remove any trace of $Log$ whenever you find one
in a file.  It will raise its ugly head again in the next merge but
eventually you'll get rid of them.

-Tor


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Subject: [parisc-linux] Minutes
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Summary of the IRC meeting held 14/Jan/2000

Participants:

Michael Ang
Paul Bame
Grant Grundler
R. Scott Holbrooke
David Kennedy
Dave O'Neill
Martin Peterson
Philipp Rumpf
Matthew Wilcox

1. The 2.3 configuration needs some work.  David will investigate.

2. The decision was taken to not forward-port the real-exe code from 2.2
   to 2.3.  Philipp will write some documentation about how to debug
   real-mode assembler code.

3. PCI has been tested to a limited extent.  It enumerates devices, but
   an unrelated bug is preventing further testing.

4. Martin has cleaned up the serial and console code.  He will commit his
   changes tomorrow after he's tested it.

5. Scott has looked at the checksumming code and will hopefully get some
   time to work on it this coming week.

6. Paul has been looking at ftr's debug code.

7. Matthew will describe the new __initcall feature in an email to the list.

8. Paul is thinking about a wide-mode bootloader.

9. Dave is working on getting the SOM linker to work on i386 Linux.  philipp
   has some additional patches he will send.

10. Signals were discussed and no-one felt that they wanted to deal with
    them.

11. Deb was nominated to draw a martini glass.


From - Thu Nov 08 21:11:37 2018
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From: Matthew Wilcox <willy@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] initcall and setup
Date: Fri, 14 Jan 2000 17:48:31 -0500
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One of the things which has changed during 2.3 development is
initialisation.  We used to have files full of:

#ifdef CONFIG_FOO
	init_foo();
#endif

#ifdef CONFIG_BAR
	init_bar();
#endif

#ifdef CONFIG_QUUX
	init_quux();
#endif

which was pretty ugly stuff.

Instead, we have declarations like:

__setup("video=", video_setup);
__setup("wd33c93", wd33c93_setup);
__setup("es1370=", es1370_setup);

in each driver and then a loop in init/main.c which goes through and
calls all the __setup functions.  Much prettier, more modular, less
dependent on CONFIG_, etc.

Unfortunately, we can't take advantage of this, because we don't yet have
ELF tools.  This is implemented through an ELF section called __initcall
which contains the address of the function to call.  We could try to hack
something together with SOM, but I'd really rather not put the work in
that will just be dumped later.


This explains why we get some of the warnings on compilation;' eg:

init/main.c:170: warning: `__setup_profile_setup' defined but not used

and why if you diff our kernel against Linus', you will find that we have
reinserted some of the explicit calls to the setup routines that have
been eliminated from the mainline tree.  It also explains why sometimes
a driver may not be called even though you compiled it in.


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FYI --

| 4. Martin has cleaned up the serial and console code.  He will commit his
|    changes tomorrow after he's tested it.

In testing the 2.3 kernel on my D320/1 with an Access Port (AP) card as
the console, printk() appeared to be broken.  The mprint() statements in
the boot loader seem to function correctly, and the pdc_putc('.')  at
the end of realmode_setup() works, but the printk() at the start of
iodc_con_init() never outputs.  The chassis codes sent out in
realmode_setup() do appear properly on the AP console.

Now the interesting thing in a D-Class with an AP card installed is that
the RS-232 connector on the back of the machine is dis-connected from 
the LASI serial hardware and connected to the AP card hardware. Because
of this, regardless of what console path is stored on the machine, the 
AP card console is what is used, so that there will always be console
outptu. When I changed the stored path from the LASI RS-232 path to the 
AP card RS-232 path, the printk() succeeds. So, there must be something 
in printk() which is getting confused between what console is actually
in use and what console is the stored path.

That aside, the kernel appears to hang at the first __put_user() macro
called in unsigned long create_som_tables(). Executing a TOC after the
hang consitently gives IIA space/offset = 0x00000000 0x00046234.

KMB
--
+============================================================+
|       Kirk Bresniker    	(916) 748-2393		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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Matthew Wilcox wrote:
> 
> One of the things which has changed during 2.3 development is
> initialisation.
...
> Unfortunately, we can't take advantage of this, because we don't yet have
> ELF tools.  This is implemented through an ELF section called __initcall
> which contains the address of the function to call.  We could try to hack
> something together with SOM, but I'd really rather not put the work in
> that will just be dumped later.

Just a clarification: The kernel will use ELF once the tool chain is
in place. The kernel is SOM now only because of our dependency
on HP-UX ld. Any forcasts for when we can switch to ELF?


...
> and why if you diff our kernel against Linus', you will find that we have
> reinserted some of the explicit calls to the setup routines that have
> been eliminated from the mainline tree.  It also explains why sometimes
> a driver may not be called even though you compiled it in.

Any general rules on where to reinsert stuff? (eg tulip_probe)
In the same place it's in the linux-2.2?
Is someone making a note to make sure the reinserted code gets
dropped when we migrate to either the next 2.3 (or possibly 2.4) release?

thanks,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: [parisc-linux] initcall and setup
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Grant Grundler wrote:
> Just a clarification: The kernel will use ELF once the tool chain is
> in place. The kernel is SOM now only because of our dependency
> on HP-UX ld. Any forcasts for when we can switch to ELF?

Yup.  The 64 bit parisc GCC package will be released shortly.  We've
been busy packaging it up in the last couple of days.

After that, we'll have to start looking at making a 32 bit ELF
toolchain.

- Alex

-- 
Alex deVries
Director of Professional Services
The Puffins at Linuxcare


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if you've had this error message on recent kernels, it actually meant
`null pointer exception'.  the current cvs tree should report these
correctly.


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I just found that the NetBSD Project have started a port to the parisc
processor:

http://www.netbsd.org/Ports/hp700/

and they have a link to:

http://parisc.workstations.org/

which mentions us :-)  More usefully, if you select the `MkLinux' option,
they have a link to that source code.

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To: ",hppa-linux@thepuffingroup.com " <hppa-linux@thepuffingroup.com>
Subject: Betr.: [hppa-linux] Boot #4 and source on ftp site
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     Hi all,
     
     boot test #4 is working again on my 715/33 booted via rbootd. I can

     see the spinning cursor. No characters dropped or overwritten.
     
     I can't wait to see vmlinux 0.1 boot...
     Ulrich
     ---------------------------------------------
     Ulrich Strelow
     <ulrich.strelow@schering.de or
     ulrich_strelow@csi.com>
     Berlin, Germany
     
     

-------------------------------------------------------------------------
To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
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From: eric@cirr.com (Eric Schnoebelen)
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Matthew Wilcox writes:
- I just found that the NetBSD Project have started a port to the parisc
- processor:
- 
- http://www.netbsd.org/Ports/hp700/

	Actualy, its more of resuming a port that had been
dropped before being completed.

- and they have a link to:
- 
- http://parisc.workstations.org/
- 
- which mentions us :-)  More usefully, if you select the `MkLinux' option,
- they have a link to that source code.

	Actually, the mkLinux/hppa sources are also in the
mklinux.org source tree.  I updated the mach/hppa portion of it
myself. (I haven't done anything on merging the Linux servers
yet..)

--
Eric Schnoebelen		eric@cirr.com		http://www.cirr.com
	Real Programmers don't write specs.  Users should be grateful for
	    whatever they get.  They are lucky to get any program at all.


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From: Matthew Wilcox <willy@thepuffingroup.com>
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Subject: [parisc-linux] PDC calls on the C3000
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I've been asked to explain what was going wrong with the PDC calls on
the C3000.  Here's what was going on:

        ldil            L%real_stack, 29        ; our stack pointer
        ldo             R%real_stack(29),29
        tophys          29

tophys is a macro which was doing:

	depi 0,1,2,gr

So the CPU was helpfully sign-extending the address of real_stack and
before the tophys macro was called we had the value
	0xffff'ffff'c0xx'xxxx
in r29.  The tophys macro was clearing the `c' to leave us with
	0xffff'ffff'00xx'xxxx
which would work if PDC recognised we were being called from narrow mode
(presumably PDC does on C360 hardware, or we wouldn't've had it working
on that machine).

I changed the tophys macro to:

	zdep gr, 31, 30, gr

which takes the rightmost 30 bits from the register, zeroes the whole
register and then stores them back into it:
	0xffff'ffff'c0xx'xxxx
becomes
	0x0000'0000'00xx'xxxx
and now PDC is happy, and so am I.


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From: "substr 'Manager Dan',-3;" <dan@moore.cx>
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Subject: [parisc-linux] getting started
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greetings,

is there anything that needs to be done in this effort that could be
done by a newcomer?  i picked up a 730 a few weeks ago, and i'm looking
for a good place to start helping with this port...

thanks. 

-- 
Dan Moore
 - - - -
WilliamsRandall/MC Programmer++  -  RHIT/CS 2000  -  ShelbyNet UNIX Dude
              http://www.68k.org/~pergamon - dan@moore.cx


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Matthew,
The hair on the back of my neck stood up when I read the second part...

Matthew Wilcox wrote:
...
> So the CPU was helpfully sign-extending the address of real_stack
...
> The tophys macro was clearing the `c' to leave us with
...
> which would work if PDC recognised we were being called from narrow mode
> (presumably PDC does on C360 hardware, or we wouldn't've had it working
> on that machine).

I'm thinking the inconsistency is possibly a firmware "bug" where either
the C360 or C3000 isn't behaving "right". Can anyone comment on what
the expected behavior is?


> I changed the tophys macro to:
> 
> 	zdep gr, 31, 30, gr
> 
> which takes the rightmost 30 bits from the register, zeroes the whole
> register and then stores them back into it:
> 	0xffff'ffff'c0xx'xxxx
> becomes
> 	0x0000'0000'00xx'xxxx
> and now PDC is happy, and so am I.

This is where the hair on the back of my neck went up.
The problem is on L-class and N-class machine we have
I/O and memory addresses which are > 4GB. And PDC will really
be confused on those platforms.

I wonder if the right answer is for the ldil instruction to NOT sign extend.
I don't know how to acheive that and I don't see us getting to L-class
without addressing that issue. I'm also hoping fixing this behavior will
make the firmware behavior differences (c360 vs C3000) irrelevant.

thanks,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Matthew Wilcox <willy@thepuffingroup.com>
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Subject: Re: [parisc-linux] PDC calls on the C3000
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On Mon, Jan 17, 2000 at 10:02:59AM -0800, Grant Grundler wrote:
> I'm thinking the inconsistency is possibly a firmware "bug" where either
> the C360 or C3000 isn't behaving "right". Can anyone comment on what
> the expected behavior is?

I would class it as a bug, but I just needed a workaround for the
next month or two :-)  BTW, the same thing happens on mkp's J5000.

> > 	0xffff'ffff'c0xx'xxxx
> > becomes
> > 	0x0000'0000'00xx'xxxx
> > and now PDC is happy, and so am I.
> 
> This is where the hair on the back of my neck went up.
> The problem is on L-class and N-class machine we have
> I/O and memory addresses which are > 4GB. And PDC will really
> be confused on those platforms.

That won't be a problem.  The tophys macro is used to convert kernel
virtual addresses into physical addresses.  The kernel isn't going to
take more than 1GB of ram for its data segment :-)

We're not applying this macro to any other data type, don't worry.


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: [parisc-linux] PDC calls on the C3000
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Grant Grundler wrote:
> > which takes the rightmost 30 bits from the register, zeroes the whole
> > register and then stores them back into it:
> >       0xffff'ffff'c0xx'xxxx
> > becomes
> >       0x0000'0000'00xx'xxxx
> > and now PDC is happy, and so am I.
> 
> This is where the hair on the back of my neck went up.
> The problem is on L-class and N-class machine we have
> I/O and memory addresses which are > 4GB. And PDC will really
> be confused on those platforms.

Right, and so we need access to wide mode registers for those PAT PDC
calls.  So I don't think we can do any of this until we have access to a
64 bit assembler.

In any case, this is not a priority right now.  I think we should only
be concerned with L class starting Feb. 7.  And N class isn't even on my
radar yet.

- Alex

-- 
Alex deVries
Director of Professional Services
The Puffins at Linuxcare


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On Fri, Jan 14, 2000 at 04:16:42PM -0800, Kirk Bresniker wrote:
> FYI --
> 
> | 4. Martin has cleaned up the serial and console code.  He will commit his
> |    changes tomorrow after he's tested it.
> 
> In testing the 2.3 kernel on my D320/1 with an Access Port (AP) card as

Could you please:

cvs update
rm .config
make oldconfig
make dep
make clean
make Image

and tell me if that works?  I've changed the .config to something which
seems to not get confused on a D270.  We don't have a D320 in the hardware
database; would you mind adding yours?


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On Mon, Jan 17, 2000 at 05:28:07PM +0000, substr 'Manager Dan',-3; wrote:
> greetings,
> 
> is there anything that needs to be done in this effort that could be
> done by a newcomer?  i picked up a 730 a few weeks ago, and i'm looking
> for a good place to start helping with this port...

The current contents of the CVS tree should work just fine on the 730,
but it's not a model we actually test on, so if you want to test, we'll
be suitably grateful.


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From: "Thierry SIMONNET" <t.simonnet@esiee.fr>
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Subject: [parisc-linux] Generating Kernel and Image
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Since December, I try to generate vmlinux and Image for 712/60.
I use a 712/60 workstation (HPUX 10.20, cc, gcc-2.95.2) as development
platform and a 712/80 as client.
My bootp works fine.
1 - I can boot on Image-19991113 with serial console. but I don't know what
to do after.
2 - I can't boot on my own Image. Perhaps my console device is wrong. What
is the right device for a graphical console. I try tty00, ttyS0. But it
fails.

Thanks for your help.

Th. SIMONNET


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From: =?iso-8859-1?B?TmlscyBTdHL4bQ==?= <nils.strom@q-free.com>
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Subject: [parisc-linux] HP 715/33
Date: Tue, 18 Jan 2000 10:09:45 +0100
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Hi!

Picked up a 715/33 yesterday; it seems to be unsupported by MkLinux:(
Is this due to a problem with the architecture (that cannot be overcome)
or is it something that just needs special care to work ?

Also, can anyone give me some hints where to get more information
about this specific model. (Web pages, or can I find info in the
parisc mail archive?) Specifically, I need info about the RAM
configuration, (SIM-pairs or singles, which types is possible, which
sizes etc). Links to MkLinux info (on this model and in general) is also
appreciated.

I will put together a web-page dealing with this model, as soon I
find information to share.

Regards,

Nils Strom
Analog Electronics R&D Engineer

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Xref: merlin.pcj.primenet.com palinux:151


Worked great again on my 715/80 off a scsi disk.

---
David Muench - Project System Administrator
Retrotech, Inc. - http://www.retrotech.com/



-----Original Message-----
From: Jason Eckhardt [mailto:jason@equator.com]
Sent: Thursday, March 11, 1999 5:35 PM
To: hppa-linux@thepuffingroup.com
Subject: [hppa-linux] Boot #4 and source on ftp site



Boot test #4: This is essentially the same code as #3 but I have taken
out some delays, modified the cache flush routines, and turned
verbose (debug) mode back on. I want to make sure that not having the delays
makes no difference and that no characters get dropped when there is a lot
of text (as in debug mode). Please let me know if the test still passes
as before. Hopefully this will be the last test for a while. Kernel work
comes next.

I have uploaded the binary as well as a new source drop to the ftp site. The
source is now GPL'd and a detailed README is included which gives an
overview
of the boot code operation. This source supersedes any previous source you
may have laying around.

ftp from sod.res.cmu.edu:/pub/parisc/hilo
  boot_rel_0.2.tar.gz        The latest source code and documentation.
  bootstrap_4.bin.gz         Bootstrap binary #4. 

Regards, 
Jason Eckhardt.

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From: Matthew Wilcox <willy@thepuffingroup.com>
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Subject: Re: [parisc-linux] HP 715/33
Date: Tue, 18 Jan 2000 11:17:37 -0500
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To: Nils Strxm <nils.strom@q-free.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:6724

On Tue, Jan 18, 2000 at 10:09:45AM +0100, Nils Strxm wrote:
> Picked up a 715/33 yesterday; it seems to be unsupported by MkLinux:(
> Is this due to a problem with the architecture (that cannot be overcome)
> or is it something that just needs special care to work ?

>From what I glean from the mklinux pages they just don't know why it
doesn't work.  I started in all this with a 715/33 which i rescued from
use as a monitor stand, and I can tell you that it definitely worked
as well as any other HP model with ordinary Linux.

> Also, can anyone give me some hints where to get more information
> about this specific model. (Web pages, or can I find info in the
> parisc mail archive?) Specifically, I need info about the RAM
> configuration, (SIM-pairs or singles, which types is possible, which
> sizes etc). Links to MkLinux info (on this model and in general) is also
> appreciated.

You definitely need pairs.  The Hardware Compatibility List says `HP
workstation RAM SIMMs and DIMMs are not generally identical to those
used in POCs.  Non-HP RAM is not officially supported.' but this is
probably just to scare you.  HP sold kits of 2x4, 2x8, 2x16 and 2x32
MB SIMMs.  If you look on Kingston's website, you can probably find out
more information.

You can find more information at http://www.thepuffingroup.com/parisc/


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From: Matthew Wilcox <willy@thepuffingroup.com>
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Subject: [parisc-linux] NCR driver
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Several people have emailed me and asked if there are any small jobs they
can do to get themselves started.  Here's one that needs doing.  There
is an NCR 53c710 driver in linux/drivers/scsi/ncr53c7xx.c.  This is the
SCSI controller found in the:

	712, 715/{64,80,100}, 725/100, A180

and possibly others.

If anyone is feeling really enterprising (or perhaps just frustrated),
they could try getting this driver to work with the following machines:

	705, 710, 715/{33,50,75}, 720, 725/{50,75}, 730, 735, 750, 755

which contain the NCR 53c700.  The _comments_ in the driver suggest that
it's almost supported, but I don't know how up to date they are.

If you do decide to work on it, please ensure you're working from the
linux-2.3 tree and let everyone know you're working on it.


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] NCR driver
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Matthew Wilcox wrote:
> 
> Several people have emailed me and asked if there are any small jobs they
> can do to get themselves started.  Here's one that needs doing.  There
> is an NCR 53c710 driver in linux/drivers/scsi/ncr53c7xx.c.  This is the
> SCSI controller found in the:
> 
> 	712, 715/{64,80,100}, 725/100, A180
> 
> and possibly others.
...

Hi all,
The LASI SCSI code didn't make it's way into the linux-2.3 tree.
Code in linux/drivers/scsi/lasi* can be migrated now.

Someone else could start trying to make PCI NCR SCSI also work under Dino.
Dino code does detect PCI devices and tulip (100BT) driver has started
talking to it's device. Need to enable CONFIG_GSC_DINO from the default
".config". This requires an A, B, or C-class machine to test though.

cheers,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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On Tue, Jan 18, 2000 at 10:34:39PM -0800, Grant Grundler wrote:
> Hi all,
> The LASI SCSI code didn't make it's way into the linux-2.3 tree.
> Code in linux/drivers/scsi/lasi* can be migrated now.

My apologies.  This oversight has been rectified.


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From: Michael Ang <mang@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] NCR driver
Date: Wed, 19 Jan 2000 11:44:49 -0500
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I've gotten the tulip driver to find it's device on the A180, but the
PCI I/O address is being reported incorrectly at some point.  The
pci_ioaddr reported is way too low, so I suspect that there is a Dino
related offset that needs to be added somewhere.  I'm digging into the
Dino code to find the right place to add the offset, and any hints/help
is appreciated.

Here's the output from the tulip driver with debugging turned on:
Found Digital DS21142/3 Tulip at I/O 0x1ff00.

PCI bus walking should work fine.  You can see the devices found by
defining DEBUG in drivers/pci/pci.c, and the vendor and device ids are
listed in devlist.h

	- Mike.

Grant Grundler wrote:
> 
> Someone else could start trying to make PCI NCR SCSI also work under Dino.
> Dino code does detect PCI devices and tulip (100BT) driver has started
> talking to it's device. Need to enable CONFIG_GSC_DINO from the default
> ".config". This requires an A, B, or C-class machine to test though.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] NCR driver
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Michael Ang wrote:
> I've gotten the tulip driver to find it's device on the A180, but the
> PCI I/O address is being reported incorrectly at some point.  The
> pci_ioaddr reported is way too low, so I suspect that there is a Dino
> related offset that needs to be added somewhere.  I'm digging into the
> Dino code to find the right place to add the offset, and any hints/help
> is appreciated.

dino_fixup_bus()

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Thomas Janker <thomas@janker.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] working system
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Hi,

I'm new in this list, and I'm just beginning to work with
HP-Workstations. I've a HP 9000 715/100 and a HP 9000 735/125
workstation, both with no system on it.
Is there any other system, beside HP-UX and PaRisc Linux, that works on
this machines ?
I want to get an overview by installing a system that works without
problems. Later I want to get busy with PaRisc Linux.

Thanks in advance.

Thomas Janker


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This is a multi-part message in MIME format.

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	charset="iso-8859-1"
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This is probably the wrong place, but anyhow.

I bought a J5000 to replace my J200 last week and have a J200
for sale:

J200 (770/100)
128M
1GB
HCRX 24bit Graphics
20" Sony Trinitron (HP A4133A?)
HP KB & Mouse
HPUX 10.20 w/ media
(boots lastest linux CVS kernel via TFTP or local)

@ $695.00 US + S/H (UPS Ground $125) OR REALLY GOOD OFFER


------=_NextPart_000_0007_01BF63F8.D0BDC480
Content-Type: text/html;
	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2314.1000" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>This is probably the wrong place, but=20
anyhow.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I bought a J5000 to replace my J200 =
last week and=20
have a J200</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>for sale:</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>J200 (770/100)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>128M</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>1GB</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>HCRX 24bit Graphics</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>20" Sony Trinitron (HP =
A4133A?)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>HP KB &amp; Mouse</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>HPUX 10.20 w/ media</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>(boots lastest linux CVS kernel via =
TFTP or=20
local)</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>@ $695.00 US + S/H (UPS Ground $125) OR =
REALLY GOOD=20
OFFER</FONT></DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

------=_NextPart_000_0007_01BF63F8.D0BDC480--


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: [parisc-linux] Minutes
Date: Wed, 19 Jan 2000 11:40:28 -0500
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Cc: Matthew Wilcox <willy@thepuffingroup.com>, parisc-linux@thepuffingroup.com
To: Kirk Bresniker <kirkb@chrome.rose.hp.com>
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Kirk Bresniker wrote:
> | 4. Martin has cleaned up the serial and console code.  He will commit his
> |    changes tomorrow after he's tested it.
> 
> In testing the 2.3 kernel on my D320/1 with an Access Port (AP) card as
> the console, printk() appeared to be broken.  The mprint() statements in
> the boot loader seem to function correctly, and the pdc_putc('.')  at
> the end of realmode_setup() works, but the printk() at the start of
> iodc_con_init() never outputs.  The chassis codes sent out in
> realmode_setup() do appear properly on the AP console.

I'm curious as to exactly what's in a D320, could you add this to the
hardware database at http://www.thepuffingroup.com/parisc/hw.html?

The console problems you're having are actually global to every machine,
not just yours.  I think we've solved several console problems, so you
may want to try again.

> Now the interesting thing in a D-Class with an AP card installed is that
> the RS-232 connector on the back of the machine is dis-connected from
> the LASI serial hardware and connected to the AP card hardware. Because
> of this, regardless of what console path is stored on the machine, the
> AP card console is what is used, so that there will always be console
> outptu. 

That's true of console output, since we can just use PDC calls. 
However, it's difficult or impossible to do console input with PDC
because we'd have to poll for new characters using PDC_CIN, which is a
bit of a pain.

- Alex

-- 
Alex deVries
Director of Professional Services
The Puffins at Linuxcare


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] hardware.h vs machine.h
Date: Fri, 21 Jan 2000 17:54:04 -0800 (PST)
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Xref: news.gmane.org gmane.linux.ports.parisc:6733

Hi all,
Could someone explain why HPHW_NPROC (and friends) are defined in
both asm-parisc/hardware.h and asm-parisc/machine.h?

It seems the latter is obsolete...and both use
"ifndef _PARISC_HP_MACHINES_H_" to prevent multiple inclusion.

thanks,
grant

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Subject: Re: [hppa-linux] Boot #4 and source on ftp site
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> Boot test #4: This is essentially the same code as #3 but I have taken
> out some delays, modified the cache flush routines, and turned
> verbose (debug) mode back on. I want to make sure that not having the delays
> makes no difference and that no characters get dropped when there is a lot
> of text (as in debug mode). Please let me know if the test still passes
> as before. Hopefully this will be the last test for a while. Kernel work
> comes next.

Works like a champ on a 720/50 via rbootd. Much snappier than the third
bootstrap test.

Steve

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From: Hannu Martikka <martikka@stybba.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Harware database down?
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Hi,

Is there something wrong with the hardware database?  
I cannot access it (ERROR 312 -- Cannot connect to the server ). Other
pages in thepuffingroup.com/parisc work ok.

- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


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Ladies & Gentlemen, we have a shell on Linux-2.3.

In the end, it was a two line change to the ioctl definitions as Linux and
HPUX disagreed on _whose perspective_ input and output were from.  Argh.

"Guns aren't lawful
 Nooses give
 Gas smells awful
 You might as well live"


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From: Phil Schwan <phil@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] egcs 2.9-hppa release
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Hewlett-Packard and Linuxcare are pleased to announce the release of egcs
2.9 for the PA-RISC processor.  The released source contains enhanced
support for 32-bit PA 1.1 processors and additional support for 64-bit
PA 2.0 processors.  The compiler and tools have been tested on multiple
releases of HP/UX, and have been shown to interoperate with Hewlett-Packard's
existing 64-bit toolchain.  Furthermore, the toolchain has been shown to
support cross-compilation of packages hosted on Linux/i386 with a 64-bit
PA-RISC target.  The release of this product will allow the PA-RISC
Linux porting effort to complete support for 32-bit and 64-bit ELF
binaries, as well as begin to compile 64-bit versions of the PA-RISC Linux
kernel; we anticipate that this support will be completed soon.

Though there are very few known bugs, there are almost certainly bugs
that are yet to be found.  Please direct bug reports and concerns to
gcc-info@thepuffingroup.com.  As bugs are fixed and features are added,
new snapshots will be posted to puffin.external.hp.com and
http://www.thepuffingroup.com/parisc/gcc.html

For now, the source is available only via ftp, from
ftp://puffin.external.hp.com/pub/parisc/src/egcs-2.9-hppa-991112.tar.gz
The source will soon be placed in the PA-RISC Linux cvs repository;
I'll notify the list when this takes place.

Go to it, hackers--

-Phil

-- 
Phil Schwan, Senior Linux Consultant, Linuxcare, Inc.
415.354.4878 x271 tel, 415.701.7457 fax
pschwan@linuxcare.com http://www.linuxcare.com/
Linuxcare.  At the centre of Linux.


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i've decided to start keeping some userspace programs in cvs for your
joy and edification (and so i don't lose the only working sash source
code again.. duh).  set your CVSROOT as described on the parisc webpages
and `cvs co userspace'.  ifconf.c is the only one worth talking about,
and hopefully we'll have an ethernet driver to test it with RSN...


From - Thu Nov 08 21:11:39 2018
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From: dkennedy@linuxcare.com
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Harware database down?
Date: Mon, 24 Jan 2000 16:36:43 -0500 (EST)
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On Sat, 22 Jan 2000, Hannu Martikka wrote:

> Hi,
> 
> Is there something wrong with the hardware database?  
> I cannot access it (ERROR 312 -- Cannot connect to the server ). Other
> pages in thepuffingroup.com/parisc work ok.

It should be back up and running.  Can you please check it and see if
you are still having a problem.

Thanks.

-- 
David Kennedy
Senior Linux Consultant
Linuxcare


From - Thu Nov 08 21:11:40 2018
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From: Hannu Martikka <martikka@stybba.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Harware database down?
Date: Tue, 25 Jan 2000 08:46:01 +0200 (EET)
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On Mon, 24 Jan 2000, dkennedy@linuxcare.com wrote:

> On Sat, 22 Jan 2000, Hannu Martikka wrote:
> 
> > Hi,
> > 
> > Is there something wrong with the hardware database?  
> > I cannot access it (ERROR 312 -- Cannot connect to the server ). Other
> > pages in thepuffingroup.com/parisc work ok.
> 
> It should be back up and running.  Can you please check it and see if
> you are still having a problem.
Ok. I checked it and it works. Thanks.


> -- 
> David Kennedy
- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


From - Thu Nov 08 21:11:40 2018
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From: Hannu Martikka <martikka@stybba.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715 problem
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Hei,

I tried the linux-2.3 latest kernel (ramdisk.bin-20000118a) from CVS with
715/80. I didn't get shell prompt. It seems to end up with somekind of
endless loop.

I'll include the bootup messages. Hopefully someone can make something out
of them..
My guess would be that something goes wrong near lines:
	do_mmap c7efc0e0 00001000 0003f000 00000005 00001806 00000000
	miscoloured mmap
or
	mem_map disagrees with c122b77c at 2001f000

Also I wonder why it doesn't recognice the Model/CPU-type? Even the size
of memory is incorrent (256). MHz figure is ok.
	model   00006190 00000481 00000000 00000000 7804f0a4 00000000 
00000004 00000072 00000072
	vers    0000000b
	CPUID vers 0 rev 0
	Model: <NULL> with 128 MB RAM.
	CPU(s): 1 x <unknown> at 80.000000 MHz

Kernel was compiled by running "make oldconfig; make dep; make clean; make
Image".

- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


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--1418613302-341603450-948821881=:15648--


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From: willy@thepuffingroup.com
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715 problem
Date: Tue, 25 Jan 2000 14:22:43 -0500
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In-Reply-To: <Pine.HPX.4.21.0001251927060.15648-200000@gamgee.ntc.nokia.com>; from Hannu Martikka on Tue, Jan 25, 2000 at 07:38:01PM +0200
Xref: news.gmane.org gmane.linux.ports.parisc:6741

On Tue, Jan 25, 2000 at 07:38:01PM +0200, Hannu Martikka wrote:
> I tried the linux-2.3 latest kernel (ramdisk.bin-20000118a) from CVS with
> 715/80. I didn't get shell prompt. It seems to end up with somekind of
> endless loop.

The endless loop isn't a problem; that's `debugging the switch_to' code.
prumpf, can we get rid of this now or is it still important?  I _think_
you'll find you are actually at a prompt, it's just not obvious because
of the messages.

> I'll include the bootup messages. Hopefully someone can make something out
> of them..
> My guess would be that something goes wrong near lines:
> 	do_mmap c7efc0e0 00001000 0003f000 00000005 00001806 00000000
> 	miscoloured mmap
> or
> 	mem_map disagrees with c122b77c at 2001f000

no problem, i get those too.

> Also I wonder why it doesn't recognice the Model/CPU-type? Even the size
> of memory is incorrent (256). MHz figure is ok.
> 	model   00006190 00000481 00000000 00000000 7804f0a4 00000000 
> 00000004 00000072 00000072
> 	vers    0000000b
> 	CPUID vers 0 rev 0
> 	Model: <NULL> with 128 MB RAM.
> 	CPU(s): 1 x <unknown> at 80.000000 MHz

That code's just been commented out for the moment.  Something else for
the todo list.

[...]

> DQ0KDQ0KLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t
> LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLQ0NCkJvb3RS
> b20gVmVyc2lvbiAgICAxLjQgIA0NCk1lbW9yeSBTaXplOiAgMjU2IE1CDQ0K

many many lines like this which I can't decode.  It's tagged as text/plain;
should it be mime or something?


From - Thu Nov 08 21:11:40 2018
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Hannu Martikka <martikka@stybba.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715 problem
Date: Tue, 25 Jan 2000 20:37:10 +0200 (EET)
Lines: 37
Approved: news@gmane.org
Message-ID: <Pine.HPX.4.21.0001252026280.15648-100000@gamgee.ntc.nokia.com>
References: <20000125142243.B32390@thepuffingroup.com>
NNTP-Posting-Host: plane.gmane.org
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=ISO-8859-1
Content-Transfer-Encoding: 8BIT
X-Trace: ger.gmane.org 1416618743 29814 80.91.229.3 (22 Nov 2014 01:12:23 GMT)
X-Complaints-To: usenet@ger.gmane.org
NNTP-Posting-Date: Sat, 22 Nov 2014 01:12:23 +0000 (UTC)
Cc: parisc-linux@thepuffingroup.com
To: "willy@thepuffingroup.com" <willy@thepuffingroup.com>
Original-X-From: martikka@stybba.ntc.nokia.com  Tue Jan 25 12:36:24 2000
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In-Reply-To: <20000125142243.B32390@thepuffingroup.com>
Xref: news.gmane.org gmane.linux.ports.parisc:6742

On Tue, 25 Jan 2000, willy@thepuffingroup.com wrote:

> On Tue, Jan 25, 2000 at 07:38:01PM +0200, Hannu Martikka wrote:
> > I tried the linux-2.3 latest kernel (ramdisk.bin-20000118a) from CVS with
> > 715/80. I didn't get shell prompt. It seems to end up with somekind of
> > endless loop.
> 
> The endless loop isn't a problem; that's `debugging the switch_to' code.
> prumpf, can we get rid of this now or is it still important?  I _think_
> you'll find you are actually at a prompt, it's just not obvious because
> of the messages.
Hmmm... It definetly was not obvious :)
At least I'm not able to write anything (no echo) that would cause
any response from system (except those same debug messages over and over
again).


> [...]
> 
> > DQ0KDQ0KLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t
> > LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLQ0NCkJvb3RS
> > b20gVmVyc2lvbiAgICAxLjQgIA0NCk1lbW9yeSBTaXplOiAgMjU2IE1CDQ0K
> 
> many many lines like this which I can't decode.  It's tagged as text/plain;
> should it be mime or something?
Sigh... Some over-eager sendmail managed to add extra headers to my email
:(
Just edit the email and remove extra 
	Content-Transfer-Encoding: 8bit
from the headers of the attachements.
I could repost it if you cannot open it.

- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,



From - Thu Nov 08 21:11:40 2018
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: "Ross J. Reedstrom" <reedstrm@wallace.ece.rice.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715 problem
Date: Tue, 25 Jan 2000 12:41:56 -0600
Lines: 630
Approved: news@gmane.org
Message-ID: <20000125124156.G423@rice.edu>
References: <Pine.LNX.4.10.10001241636160.3967-100000@grasshopper.thepuffingroup.com> <Pine.HPX.4.21.0001251927060.15648-200000@gamgee.ntc.nokia.com> <20000125142243.B32390@thepuffingroup.com>
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To: parisc-linux@thepuffingroup.com
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User-Agent: Mutt/1.0i
In-Reply-To: <20000125142243.B32390@thepuffingroup.com>; from willy@thepuffingroup.com on Tue, Jan 25, 2000 at 02:22:43PM -0500
Xref: news.gmane.org gmane.linux.ports.parisc:6743

Looks like it is mime: quoting from the raw message dump:

Content-Type: TEXT/plain; name="hpcapture3.txt"
Content-Transfer-Encoding: BASE64
Content-ID: <Pine.HPX.4.21.0001251938010.15648@gamgee.ntc.nokia.com>
Content-Description: 
Content-Disposition: attachment; filename="hpcapture3.txt"
Content-Transfer-Encoding: 8bit

so, it's a BASE64 encoded text, as I guessed. Since the decoded file is
smaller than the encoded one, which is already on the list, I'll include it
here for your edification:

--------------------8<--------cut here--------------8<----------------------

----------------------------------------------------------------------------
BootRom Version    1.4  
Memory Size:  256 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.

Starting Auto boot


Loading Initial Program Loader


IPL successfully loaded


Booting

ISL Revision A.00.38  OCT 26, 1994 

ISL booting  hpux

Boot
: disk(2/0/1.6.0.0.0.0.0;0)/stand/vmunix


----------------------------------------------------------------------------
BootRom Version    1.4  
Memory Size:  256 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.

Starting Auto boot

----------------------------------------------------------------------------
Command                                Description
-------                                -----------
Auto [boot|search] [on|off]            Set/show auto mode
Boot [pri|alt [isl]]                   Boot from primary or alternate path
Boot [scsi|eisa.<slot>[.<addr>]] [isl] Boot from SCSI or EISA
Boot lan[.<addr>] [install] [isl]      Boot from LAN
Chassis [on|off]                       Set/show chassis codes display mode
DefaultSS                              Reboot and set EEPROM to default values
Diagnostic [on|off]                    Set/show diagnostic boot mode
Fastboot [on|off]                      Set/show fast boot mode
Help                                   Show this command menu
Information                            Show system information
LanAddress                             Show LAN station addresses
Monitor [<DEV>[.<type>]]               Set/show graphics monitor type
                                       (<DEV>=graphics|graphics_<1|2>)
Path [pri|alt [<DEV>[.<addr>]]]        Set/show boot source path
                                       (<DEV>=lan|scsi|eisa.<slot>)
Path [console [<DEV>[.<parm>]]]        Set/show boot console path
                                       (<DEV>=<RS232>|<GRAPH>
                                        <RS232>=rs232|rs232_2
                                        <parm>=<baud>.<length>.<parity>
                                        <GRAPH>=graphics|graphics_<1|2>
                                        <parm>=<monitor>)
Path [keyboard [hil|ps2]]              Set/show boot keyboard path
Pim [hpmc|toc|lpmc]                    Show PIM info
Search [ipl] [scsi|eisa]               Show potential boot devices
Search [ipl] [lan [install]]           Show potential boot LAN devices
Secure [on|off]                        Set/show security mode
----------------------------------------------------------------------------
BOOT_ADMIN> bo lan




Attempting to boot.

Loading Initial Program Loader


IPL successfully loaded


Booting

------------------------------------------------------------------------------

PARISC/Linux Bootstrap Version 0.6 (non-interactive)
By Helge Deller & Jason Eckhardt
Built Tue Jan 25 17:24:05 EET 2000 by root@specter

Official memory starts at 00008000
Reading parameters...done.

Loading PA-RISC/Linux Kernel...
SOM-Kernel:
aux_header_location: 00000080
som       : 01000080
exec_dfile: 00108000
exec_dsize: 000BC000
exec_dmem : C01C5000
exec_tfile: 00043000
exec_tsize: 000C4008
exec_tmem : C0100000
exec_bsize: 00060B10
exec_entry: C0100000
Code at 0x00100000, size=0x000C4008
Data at 0x001C5000, size=0x000BC000
BSS  at 0x00281000.
exec_entry: C0100000

Transferring control to kernel. (At entry point 0x00100000)
!.iodc_con_init
Console: switching to IODC console
The Kernel has started...
Free memory starts at: 0xc02e1af0
FP CCR was 0x0, will be set to 0xc0
model   00006190 00000481 00000000 00000000 7804f0a4 00000000 00000004 00000072 00000072
vers    0000000b
CPUID vers 0 rev 0
Model: <NULL> with 128 MB RAM.
CPU(s): 1 x <unknown> at 80.000000 MHz
Searching for devices in PDC firmware...  an older box...
Found devices:
1. Mirage 80 GSC Builtin Graphics (10) at 0xf8000000, versions 0x10, 0x0, 0x85, 0x0, 0x0
2. Mirage 80 Core BA (11) at 0xf0100000, versions 0x2b, 0x0, 0x81, 0x0, 0x0
3. Mirage 80 Core SCSI (10) at 0xf0106000, versions 0x2b, 0x0, 0x82, 0x0, 0x0
4. Mirage 80 Core LAN (802.3) (10) at 0xf0107000, versions 0x2b, 0x0, 0x8a, 0x0, 0x0
5. Mirage 80 Core RS-232 (10) at 0xf0105000, versions 0x2b, 0x0, 0x8c, 0x0, 0x0
6. Mirage 80 Core Centronics (10) at 0xf0102000, versions 0x2b, 0x0, 0x74, 0x0, 0x0
7. Mirage 80 Audio (10) at 0xf0104000, versions 0x2b, 0x0, 0x7b, 0x0, 0x0
8. Mirage 80 Core PC Floppy (10) at 0xf010a000, versions 0x2b, 0x0, 0x83, 0x0, 0x0
9. Mirage 80 Core PC Keyboard (10) at 0xf0108000, versions 0x2b, 0x0, 0x84, 0x0, 0x0
10. Mirage 80 Core PC Keyboard (10) at 0xf0108100, versions 0x2b, 0x0, 0x84, 0x0, 0x0
11. Unknown device (11) at 0xf0200000, versions 0x10, 0x0, 0x8e, 0x0, 0x0
12. Pace Core HIL (10) at 0xf0201000, versions 0x10, 0x0, 0x73, 0x0, 0x0
13. Mirage 80 Wax RS-232 (10) at 0xf0202000, versions 0x10, 0x0, 0x8c, 0x0, 0x0
14. Mirage 80  (0) at 0xfffbe000, versions 0x619, 0x0, 0x4, 0x0, 0x81
15. Mirage 80 (1) at 0xfffbf000, versions 0x4f, 0x0, 0x9, 0x0, 0x0
That's a total of 15 devices.
Linux version 2.3.29 (root@specter) (gcc version 2.95.1 19990816 (release)) #2 Tue Jan 25 17:14:23 EET 2000
init_bootmem 738 32768
free_bootmem 002e2af0 07d1d510
d_conf 61402000
initrd: c01cb000-c026d800
command_line: /stand/vmlinux HOME=/ TERM=LINUX console=tty

pagetable_init
totalpages: 00008000
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
trap_init
#Console: mono IODC console 80x34
iodc_con_initConsole: switching to IODC consoleThe Kernel has started...Free memory starts at: 0xc02e1af0FP CCR was 0x0, will be set to 0xc0model   00006190 00000481 00000000 00000000 7804f0a4 00000000 00000004 00000072 00000072vers    0000000bCPUID vers 0 rev 0Model: <NULL> with 128 MB RAM.CPU(s): 1 x <unknown> at 80.000000 MHzSearching for devices in PDC firmware...  an older box...Found devices:1. Mirage 80 GSC Builtin Graphics (10) at 0xf8000000, versions 0x10, 0x0, 0x85, 0x0, 0x02. Mirage 80 Core BA (11) at 0xf0100000, versions 0x2b, 0x0, 0x81, 0x0, 0x03. Mirage 80 Core SCSI (10) at 0xf0106000, versions 0x2b, 0x0, 0x82, 0x0, 0x04. Mirage 80 Core LAN (802.3) (10) at 0xf0107000, versions 0x2b, 0x0, 0x8a, 0x0, 0x05. Mirage 80 Core RS-232 (10) at 0xf0105000, versions 0x2b, 0x0, 0x8c, 0x0,
  0x06. Mirage 80 Core Centronics (10) at 0xf0102000, versions 0x2b, 0x0, 0x74, 0x0, 0x07. Mirage 80 Audio (10) at 0xf0104000, versions 0x2b, 0x0, 0x7b, 0x0, 0x08. Mirage 80 Core PC Floppy (10) at 0xf010a000, versions 0x2b, 0x0, 0x83, 0x0, 0x09. Mirage 80 Core PC Keyboard (10) at 0xf0108000, versions 0x2b, 0x0, 0x84, 0x0, 0x010. Mirage 80 Core PC Keyboard (10) at 0xf0108100, versions 0x2b, 0x0, 0x84, 0x0, 0x011. Unknown device (11) at 0xf0200000, versions 0x10, 0x0, 0x8e, 0x0, 0x012. Pace Core HIL (10) at 0xf0201000, versions 0x10, 0x0, 0x73, 0x0, 0x013. Mirage 80 Wax RS-232 (10) at 0xf0202000, versions 0x10, 0x0, 0x8c, 0x0, 0x014. Mirage 80  (0) at 0xfffbe000, versions 0x619, 0x0, 0x4, 0x0, 0x8115. Mirage 80 (1) at 0xfffbf000, versions 0x4f, 0x0, 0x9, 0x0, 0x0
That's a total of 15 devices.
Linux version 2.3.29 (root@specter) (gcc version 2.95.1 19990816 (release)) #2 T
ue Jan 25 17:14:23 EET 2000
init_bootmem 738 32768
free_bootmem 002e2af0 07d1d510
d_conf 61402000
initrd: c01cb000-c026d800
command_line: /stand/vmlinux HOME=/ TERM=LINUX console=tty

pagetable_init
totalpages: 00008000
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
trap_init
Console: mono IODC console 80x34
register_console
Calibrating delay loop... 77.99 BogoMIPS
max_low_pfn 32768
Memory: 125740k available
kmem_test() - start
kmem_free: Bad front redzone (objp=c7ffe004, name=test-cachep)
kmem_free: Bad rear redzone (objp=c7ffe004, name=test-cachep)
kmem_test() - finished
c7ff0000 c7ff8000 c7fee000 c7ffc000
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
switch_to c01c6000 c7fe8000
Lasi version 0 at 0xf0100000 found.
request_irq(2, c01b9350, 0x0, lasi, c7feb060)
enable_irq(0 + 2) called but no support
Lasi IRQ 2 EIM 0xfffe0002<4>
lasi_alloc_irq(0xf0105000) 0x100 + 26 = 282
Found LASI serial #0 at 0xf0105000, IRQ 282
ttyS00 at iomem 0xf0105800 (irq = 282) is a 16550A
lasi_alloc_irq(0xc02db060): No known LASI owns device at 0xf0202000
IRQ not found for lasi serial at 0xf0202000
Warning : device (10, 0x10, 0x0, 0x8c, 0x0) NOT claimed by Lasi serial 712, 715 
or similiar
Initializing lasi keyboard port at 0xf0108000...
lasi_alloc_irq(0xf0108000) 0x100 + 5 = 261
request_irq(261, c01b8158, 0x0, GSC PS/2, f0108000)
lasi_enable_irq(c7feb060, 5) IMR 0x4000000 addr f0100004
do_irq_mask 20000000 c026e31c c7fe8740
do_irq_mask 04000000 c7fbe020 c7fe8740
Initializing lasi mouse port at 0xf0108100...
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
Serial driver version 4.91 (1999-11-17) with no serial options enabled
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 650 blocks [1 disk] into ram disk... |/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|done.
iodc_con_init
Console: switching to mono IODC console 80x34
VFS: Mounted root (ext2 filesystem).
tty_open
vt_console_device returning [0 0] (4 1) 0401
searching for 4/1
found 136/[0,256]
found 128/[0,256]
found 3/[0,256]
found 2/[0,256]
found 5/[64,4]
found 4/[64,4]
found 4/[0,1]
found 5/[2,1]
found 5/[1,1]
found 5/[0,1]
found 4/[1,63]
driver: -1070745744
retval 0
driver.open 0
execve /sbin/init c01ca008 c01ca030
do_execve
reading c014d2a8 c7fe8808 c7fe85c8 128
returned 128
02100108 05124000 00000000 00000000
00000000 00000000 000039c3 00000080
000000b4 00045535 40006d38 00000138
00000004 000001c8 00000013 000004fc
00000000 000004fc 000001e8 000004c0
00000003 000006e4 00000000 000006e4
00000000 000006e4 00000000 000006e4
00000000 00045000 00000535 4702100b
search_binary_handler
trying c016f4c0
load_som_binary
It seems to be a valid SOM executable
reading c014d2a8 c7fe8888 c7fb4140 180
returned 180
10000004 00000028 0003e044 00001000
00000000 00006000 40001000 0003f000
0000ef10 000039c0 00000000 00000000
8000000b 00000004 00000000 80000001
00000020 39323435 332d3037 42000000
31312e30 31000000 00000000 386001ae
00000000 80000001 00000020 39323435
332d3037 42000000 31312e30 34000000
do_mmap c7efc0e0 00001000 0003f000 00000005 00001806 00000000
miscoloured mmap
do_mmap c7efc0e0 40001000 00006000 00000007 00001806 0003f000
miscoloured mmap
do_mmap 00000000 40007000 0000f000 00000007 00000006 00000000
miscoloured mmap
bprm->p: 2001ffda
stack_base 20000000 fc000000
stack_base 20001000 fc000000
stack_base 20002000 fc000000
stack_base 20003000 fc000000
stack_base 20004000 fc000000
stack_base 20005000 fc000000
stack_base 20006000 fc000000
stack_base 20007000 fc000000
stack_base 20008000 fc000000
stack_base 20009000 fc000000
stack_base 2000a000 fc000000
stack_base 2000b000 fc000000
stack_base 2000c000 fc000000
stack_base 2000d000 fc000000
stack_base 2000e000 fc000000
stack_base 2000f000 fc000000
stack_base 20010000 fc000000
stack_base 20011000 fc000000
stack_base 20012000 fc000000
stack_base 20013000 fc000000
stack_base 20014000 fc000000
stack_base 20015000 fc000000
stack_base 20016000 fc000000
stack_base 20017000 fc000000
stack_base 20018000 fc000000
stack_base 20019000 fc000000
stack_base 2001a000 fc000000
stack_base 2001b000 fc000000
stack_base 2001c000 fc000000
stack_base 2001d000 fc000000
stack_base 2001e000 fc000000
stack_base 2001f000 c7eef000
mem_map disagrees with c122b77c at 2001f000
set_pte c7ef607c 07eef581
(start_brk) 40016000
(end_code) 00040000
(start_code) 00001000
(end_data) 40007000
(start_stack) 2001fff8
(brk) 40016000
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd00c 07ed3502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef3004 07ec1513
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef3018 07ec6513
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd010 07eb4513
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef6088 07eb2591
syscall 57 20022090 00000000 00000000 696e7578 = 0 (-> 0000431b)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd004 07ea1502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef6080 07eb0591
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef3044 01001502
syscall 71 00000000 00000020 00000007 00000012do_mmap 00000000 00000000 00000020
 00000007 00000012 00000012
 = -22 (-> 0000485b)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef3044 07e91513
syscall 68 ffffffea ffffffff 00000007 00000012 = -251 (-> 00004877)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef303c 0100f502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd03c 07ebf502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef3054 01005502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef3008 07ea2503
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd0b8 07ebe502
syscall 224 0002e820 06211988 00000570 06211989 = -251 (-> 0000f293)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd058 07e96502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd06c 07eab502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd098 07e86502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef3010 07e84503
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd05c 07ea7502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd0ec 07e9b502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd0d4 07e95502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef6084 07e51591
syscall 132 00002711 00000045 00000024 0000008b = 528 (-> 00026dbf)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd064 07ea9502
syscall 17 40015f18 00000000 40015f18 00000000 = 1073835800 (-> 0002ee37)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef3054 07e85513
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd060 07ea8502
syscall 17 40017f0c ffffffff 00000001 00000000 = 1073843980 (-> 0002ee37)
syscall 17 40018000 00000000 00002000 00000000 = 1073844224 (-> 0002ee37)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef305c 07e97513
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd068 07eaa502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd070 07eac513
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd0bc 07e8f513
syscall 54 00000000 40125401 20020578 40017f2d = 0 (-> 00016dbf)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd078 07e9e513
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd074 07ead513
syscall 54 00000001 40125401 200207b8 40004e24 = 0 (-> 00016dbf)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd0a4 07e99502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef3034 07e9d513
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd0a8 07e9a502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd0b0 07e9c502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd080 07e80502
syscall 4 00000001 4000d000 00000020 0900deeeStand-alone shell (version 2.1)
 = 32 (-> 0002025f)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd07c 07e7f502
syscall 224 0002e820 06211988 00000570 00000000 = -251 (-> 0002ef0f)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd0d8 07e76502
syscall 108 00000002 20020570 20020580 00000000 = -251 (-> 0002ef43)
syscall 108 00000003 20020570 20020580 00000000 = -251 (-> 0002ef43)
syscall 54 00000000 40125401 20022df8 00000000 = 0 (-> 00016dbf)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd018 07e56502
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd044 07e41502
syscall 4 00000001 40001768 00000002 0900deee>  = 2 (-> 0002025f)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7ef608c 07e83591
syscall 54 00000000 40125401 20023138 40004e20 = 0 (-> 00016dbf)
current = c7fe8000, mm = c7ef9040, mmap_sem = c7ef905c
set_pte c7efd0b4 07e8d502
syscall 3 00000000 40013000 00002000 0900deeedel_from_runqueue c7fe8000(1), 1
del_from_runqueue c7fe8000
switch_to c7fe8000 c7fb8000
del_from_runqueue c7fb8000(3), 3
del_from_runqueue c7fb8000
switch_to c7fb8000 c7fba000
bdflush


del_from_runqueue c7fba000(2), 2
del_from_runqueue c7fba000
switch_to c7fba000 c01c6000
switch_to c01c6000 c7fb8000
del_from_runqueue c7fb8000(3), 3
del_from_runqueue c7fb8000
switch_to c7fb8000 c01c6000
switch_to c01c6000 c7fba000
del_from_runqueue c7fba000(2), 2
del_from_runqueue c7fba000
switch_to c7fba000 c01c6000
switch_to c01c6000 c7fb8000
del_from_runqueue c7fb8000(3), 3
del_from_runqueue c7fb8000
switch_to c7fb8000 c01c6000
switch_to c01c6000 c7fba000
del_from_runqueue c7fba000(2), 2
del_from_runqueue c7fba000
switch_to c7fba000 c01c6000
switch_to c01c6000 c7fb8000
del_from_runqueue c7fb8000(3), 3
del_from_runqueue c7fb8000
switch_to c7fb8000 c01c6000
switch_to c01c6000 c7fba000
del_from_runqueue c7fba000(2), 2
del_from_runqueue c7fba000
switch_to c7fba000 c01c6000
switch_to c01c6000 c7fb8000
del_from_runqueue c7fb8000(3), 3
del_from_runqueue c7fb8000
switch_to c7fb8000 c01c6000
switch_to c01c6000 c7fba000
del_from_runqueue c7fba000(2), 2
del_from_runqueue c7fba000
switch_to c7fba000 c01c6000
switch_to c01c6000 c7fb8000
del_from_runqueue c7fb8000(3), 3
del_from_runqueue c7fb8000
switch_to c7fb8000 c01c6000
switch_to c01c6000 c7fba000
del_from_runqueue c7fba000(2), 2
del_from_runqueue c7fba000
switch_to c7fba000 c01c6000
switch_to c01c6000 c7fb8000
del_from_runqueue c7fb8000(3), 3
del_from_runqueue c7fb8000
switch_to c7fb8000 c01c6000
switch_to c01c6000 c7fba000
del_from_runqueue c7fba000(2), 2
del_from_runqueue c7fba000
switch_to c7fba000 c01c6000

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Subject: Re: [hppa-linux] Boot #4 and source on ftp site 
In-reply-to: Your message of "Thu, 11 Mar 1999 16:35:15 PST."
             <199903112235.QAA05851@equator.com> 
Date: Fri, 12 Mar 1999 14:49:02 -0800
From: Grant Grundler <grundler@cup.hp.com>
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Jason Eckhardt wrote:
> 
> Boot test #4: This is essentially the same code as #3 but I have taken
> out some delays, modified the cache flush routines, and turned
...

Works on B132L (early version B-class). Will try it on a newer
C-class next.

One gripe: The test code doesn't automatically reboot the box.
I use remote consoles and have to walk over to the machine room
to cycle power...remember I'm doing this in my "spare" time.

If/when a kernel debugger is working, rebooting from the debugger
would be a good thing. I think PDC will support this but don't
have a clue about the details.

grant


Firmware Version  5.8

Duplex Console IO Dependent Code (IODC) revision 1

Memory Test/Initialization Completed

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------
      0      132 MHz    Active                 Functional          64 KB
                                                                    1 MB ext


  Available memory (bytes)    :   67108864
  Good memory required (bytes):   67108864

  Primary boot path:    SESCSI.5.0
  Alternate boot path:  SESCSI.6.0
  Console path:         GRAPHICS(0)
  Keyboard path:        PS2
...
Main Menu: Enter command > pa

  Primary boot path:    SESCSI.5.0

  Alternate boot path:  SESCSI.6.0

  Console path:         GRAPHICS(0)

  Keyboard path:        PS2

Main Menu: Enter command > bo alt
Interact with IPL (Y, N, Q)?> n

Booting...
Boot IO Dependent Code (IODC) revision 153


HARD Booted.

------------------------------------------------------------------------------

PARISC/Linux Bootstrap Version 0.2 (non-interactive)
By Jason Eckhardt
Built Thu Mar 11 16:01:50 CST 1999 by jason@sathanas

IPL_DEBUG: Page zero parameters:
  P0_IMM_max_mem:          67108864 (64 MB)
  P0_BOOTCPU_10msec:       1320000 (132 MHz)
  P0_BOOTCPU_mem_free:     0x00008000
  P0_BOOTCPU_hpa:          0xFFFBE000
  P0_BOOTCPU_pdc:          0x00004800
  P0_COUT_iodc_io:         0x00008000
  P0_CIN_iodc_io:          0x00008000
  P0_BOOTDEV_iodc_io:      0x00012000
  P0_COUT_class:           0x00000007
  P0_CIN_class:            0x00000007
  P0_BOOTDEV_class:        0x00000001
Reading parameters...done.
Size = 28672 bytes, entry = 0x00001000, location = 0x0002B040.
Loading kernel...done.
Transferring control to kernel.

*********************************************************

VMLINUX 0.0: Dummy kernel image loaded and executing!


It is now safe to reboot.
[ couldn't copy the ASCII animation]

-------------------------------------------------------------------------
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From - Thu Nov 08 21:11:40 2018
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Subject: Re: [parisc-linux] 715 problem
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Xref: news.gmane.org gmane.linux.ports.parisc:6744

>>>>> "willy" == willy  <willy@thepuffingroup.com> writes:

>> Also I wonder why it doesn't recognice the Model/CPU-type? Even the
>> size of memory is incorrent (256). 

We've run into quite a few problems on machines with plenty of memory
the last couple of weeks so we are currently using 128 MB as cutoff
value.

I just fixed it so that it will output the correct memsize no matter
which limits we enforce during development. Pure cosmetics, though...

-- 
Martin Kasper Petersen			BOFH, IC1&2, Aalborg University, DK
mailto:mkp@SunSITE.auc.dk		http://SunSITE.auc.dk/~mkp/


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From: Michael Ang <mang@linuxcare.com>
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Subject: [parisc-linux] progress on tulip driver
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This is a multi-part message in MIME format.
--------------D0BD82966A7539A1A823BCA3
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

I just committed some changes to the tulip driver that should let you
read a MAC on the bultin tulip on the A180 -- please let me know if this
doesn't work on other machines.  You need to apply the attached patch
since check_region doesn't understand our fudged PCI I/O addresses.  You
can type "in la" from the boot menu to get the MAC of the builtin lan
adapter.

I suspect that the tulip code is still broken on pa20 boxen because of
the fudged addresses.

Thanks to Grant for fixing the Dino code that I was having problems
with.

	- Mike.
--------------D0BD82966A7539A1A823BCA3
Content-Type: text/plain; charset=us-ascii;
 name="tulip.diff"
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 filename="tulip.diff"

Index: tulip.c
===================================================================
RCS file: /home/cvs/parisc/linux-2.3/drivers/net/tulip.c,v
retrieving revision 1.3
diff -u -r1.3 tulip.c
--- tulip.c	2000/01/25 19:48:06	1.3
+++ tulip.c	2000/01/25 19:48:52
@@ -513,7 +513,10 @@
 
 		/* Avoid already found cards */
 		if (check_region(pci_ioaddr, tulip_tbl[chip_idx].io_size))
-			continue;
+/*XXXmang			continue; */
+			printk("tulip_probe: warning, region 0x%x size 0x%x not available, continuing anyway\n",
+				   pci_ioaddr, tulip_tbl[chip_idx].io_size);
+		
 
 		pcibios_read_config_word(pci_bus, pci_device_fn,
 								 PCI_COMMAND, &pci_command);

--------------D0BD82966A7539A1A823BCA3--


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How to Create A Suitable Ramdisk.

several people have asked how to do it.  So here you go:

You will require One (1) Linux machine and the root password for it.

--- begin ---

#!/bin/sh

FILE=/tmp/ramdisk.bin
MOUNT=/mnt/ramdisk

# (0) Ensure the mount point exists.

if [ ! -d $MOUNT ]; then
  mkdir $MOUNT;
fi

# (1) Create a ramdisk of appropriate size.

dd if=/dev/zero of=$FILE bs=1024 count=400

# (2) Create a filesystem in it.

mke2fs $FILE

# (3) Mount it

mount -o loop $FILE $MOUNT

# (4) copy files into it.

echo Now copy your files into $MOUNT
bash

# (5) unmount

unmount $FILE

--- end ---

Ensure that you have /dev/console, /sbin/init, /dev/tty0 and a /proc
directory is probably also wise.  It's probably easiest to copy them
from a ramdisk already available, but here's an ls -lR of one:

# ls -lR /mnt/cdrom2
/mnt/cdrom2:
total 15
drwxrwxrwx   2 root     root         1024 Oct 18 13:23 dev
drwxrwxrwx   2 root     root        12288 Aug 22 15:12 lost+found
drwxrwxr-x   2 root     root         1024 Oct 19 12:21 proc
drwxrwxrwx   2 root     root         1024 Jan 24 17:26 sbin

/mnt/cdrom2/dev:
total 0
crwxrwxrwx   1 root     tty        5,   1 Oct 18 13:23 console
crwxrwxrwx   1 root     tty        4,   0 Oct 18 13:23 tty0
crwxrwxrwx   1 root     tty        4,   1 Oct 18 13:23 tty1
crwxrwxrwx   1 root     tty        4,   2 Oct 18 13:23 tty2
crwxrwxrwx   1 root     tty        4,   3 Oct 18 13:23 tty3
crwxrwxrwx   1 root     tty        4,   4 Oct 18 13:23 tty4
crwxrwxrwx   1 root     tty        4,   5 Oct 18 13:23 tty5
crwxrwxrwx   1 root     tty        4,   6 Oct 18 13:23 tty6
crwxrwxrwx   1 root     tty        4,   7 Oct 18 13:23 tty7
crwxrwxrwx   1 root     tty        4,   8 Oct 18 13:23 tty8
crwxrwxrwx   1 root     sys        7,   0 Oct 18 13:23 vcs0
crwxrwxrwx   1 root     sys        7,   1 Oct 18 13:23 vcs1
crwxrwxrwx   1 root     sys        7,   2 Oct 18 13:23 vcs2
crwxrwxrwx   1 root     sys        7,   3 Oct 18 13:23 vcs3
crwxrwxrwx   1 root     sys        7,   4 Oct 18 13:23 vcs4
crwxrwxrwx   1 root     sys        7,   5 Oct 18 13:23 vcs5
crwxrwxrwx   1 root     sys        7,   6 Oct 18 13:23 vcs6
crwxrwxrwx   1 root     sys        7,   7 Oct 18 13:23 vcs7
crwxrwxrwx   1 root     sys        7,   8 Oct 18 13:23 vcs8
crwxrwxrwx   1 root     sys        7, 128 Oct 18 13:23 vcsa
crwxrwxrwx   1 root     sys        7, 129 Oct 18 13:23 vcsa1
crwxrwxrwx   1 root     sys        7, 130 Oct 18 13:23 vcsa2
crwxrwxrwx   1 root     sys        7, 131 Oct 18 13:23 vcsa3
crwxrwxrwx   1 root     sys        7, 132 Oct 18 13:23 vcsa4
crwxrwxrwx   1 root     sys        7, 133 Oct 18 13:23 vcsa5
crwxrwxrwx   1 root     sys        7, 134 Oct 18 13:23 vcsa6
crwxrwxrwx   1 root     sys        7, 135 Oct 18 13:23 vcsa7
crwxrwxrwx   1 root     sys        7, 136 Oct 18 13:23 vcsa8

/mnt/cdrom2/lost+found:
total 0

/mnt/cdrom2/proc:
total 0

/mnt/cdrom2/sbin:
total 1036
-rwxr-xr-x   1 willy    guests     245760 Jan 18 02:46 ab
-rwxr-xr-x   1 willy    guests     237568 Jan 18 02:46 hellow
-rwxr-xr-x   2 root     root       283957 Jan 18 02:31 init
-rwxr-xr-x   2 root     root       283957 Jan 18 02:31 sash



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From: "Dave O'Neill" <doneill@linuxcare.com>
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Subject: [parisc-linux] SOM Linker Status
Date: Tue, 25 Jan 2000 20:23:57 -0500 (EST)
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The SOM linker now compiles and runs on HPUX.  I've only tested it against
itself, but it can link its object files into a linker that can be used to
link its own object files, which...  you get the point.   I'll hit it with
more exhaustive tests later, but it seems to be OK at this point.  The
working code is in CVS.

To get it running on x86, I'm still tackling the byteorder issues that pop
up.  The only troublesome part of this is the huge number of bitfields
that get read from the object files as a stream of characters directly
into various structs.  There don't seem to be any more serious issues on
x86, though, so it shouldn't be long before we have a working SOM linker.

Dave
-- 
Dave O'Neill, Senior Linux Consultant, Linuxcare, Inc.
doneill@linuxcare.com, http://www.linuxcare.com/
Linuxcare. At the center of Linux.




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From: Paul Bame <bame@endor.fc.hp.com>
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I built the pa1.1 compiler from these bits but am unable to build
the pa2.0w compiler.  It dies when xgcc tries to compile gcc/libgcc2.c
with a littany of nasty errors, many like this:

In file included from tm.h:6,
     from ../../src/gcc/config/pa/xm-pa64hpux.h:46,
      from tconfig.h:5,
       from ../../src/gcc/libgcc2.c:33:
       ../../src/gcc/config/pa/pa.h:29: overflow in enumeration values
       ../../src/gcc/config/pa/pa.h:42: overflow in enumeration values

I used 'configure --prefix=/opt/puffin --enable-languages=c,c++' and
which figured out on its own to build the 2.0w compiler.

No luck building on hp-ux 11.0 on a C3000.

Hints?

	-Paul Bame


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From: "Brian S. Julin" <bri@mojo.calyx.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Boot info from 715/64
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Well, I finally got past the "!." and into the kernel proper.
I don't know whether it was a small number of updates from
CVS, or something was wedged in the build system.  I was
trying to track the problem by putting in kernel halts
(with the handy rotating LEDS function), and the kernel
when further with them in, than without them.  So I took them
out and suddenly I get all the way to pagetable_init.

Anyway, In case it is of any use, here's the CPU id from my machine:

FP CCR was 0x0, will be set to 0xc0
model 000060a0 00000481 00000000 00000000 77c0cada 
00000000 00000004 00000072 00000072
vers 0000000c

[...lots of stuff about "unknown" CPU info]

Searching for devices in PDC firmware...   an older box...
Found devices:
1. Mirage Jr GSC Builtin Graphics (10) at 0xf8000000, versions 0x12,
0x0, 0x85, 0x0, 0x0

[...]  more devices, some of which I don't have.

15. Mirage Jr (715/64) (0) at 0xfffbe000 versions 0x60a, 0x0, 0x4, 0x0,
0x81
16. Mirage Jr (1) at 0xfffbf000, vesions 0x4a, 0x0, 0x9, 0x0, 0x0
That's a total of 16 devices.
Linux version 2.3.29 (root@parisc) (gcc version egcs-2.91.60 19981201
(egcs-1.1.1 release)) #22 Wed Jan 26 12:44:21 EST 2000
init_bootmem 679 8192
free_bootmem 002a66bc 0ad59944
d_conf 61402000
initrd: c01cd000-c0231000
command_line: /stand/vmlinux HOME=/ TERM=linux console=tty

pagetable_init


--
Brian S. Julin


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot info from 715/64
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"Brian S. Julin" wrote:
> Searching for devices in PDC firmware...   an older box...
> Found devices:
> 1. Mirage Jr GSC Builtin Graphics (10) at 0xf8000000, versions 0x12,
> 0x0, 0x85, 0x0, 0x0
> 
> [...]  more devices, some of which I don't have.
> 
> 15. Mirage Jr (715/64) (0) at 0xfffbe000 versions 0x60a, 0x0, 0x4, 0x0,
> 0x81
> 16. Mirage Jr (1) at 0xfffbf000, vesions 0x4a, 0x0, 0x9, 0x0, 0x0
> That's a total of 16 devices.

Which ones don't you have?  Could you paste the entire list?

- Alex

-- 
Alex deVries
Director of Professional Services
The Puffins at Linuxcare


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/33 and HIL driver
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I have seen the shellprompt on my 715/33 using the CVS
version 20000125 and defconfig (and removing the debug
printk's from sched.c + system.h). But activating
CONFIG_HIL leads to the following boot messages:

pagetable_init
kernel BUG at bootmem.c:163!
kernel BUG at bootmem.c:203!

I have read a previous message concerning problems
with the HIL driver. So my question : is the driver
still not ready for Linux 2.3 and is someone working
on that ?

Ulrich
__________________________________________________
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Talk to your friends online with Yahoo! Messenger.
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From: Kirk Bresniker <kirkb@chrome.rose.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715/33 and HIL driver
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I have never seen the shellpromt on my D320, but I am
getting the same thing as you.

| I have seen the shellprompt on my 715/33 using the CVS
| version 20000125 and defconfig (and removing the debug
| printk's from sched.c + system.h). But activating
| CONFIG_HIL leads to the following boot messages:
| 
| pagetable_init
| kernel BUG at bootmem.c:163!
| kernel BUG at bootmem.c:203!

This happened after I did an rm .config; make oldconfig dep clean Image.
Before that I was getting to the switch_to endless loop, but no prompt.

Here is what I get:

|Console: switching to IODC console
|The Kernel has started...
|Free memory starts at: 0xc02e2a9c
|FP CCR was 0xc0, will be set to 0xc0
|model   00005120 00000481 00000000 00000000 7768de7f 100000f0 00000004 000000ba 000000ba
|vers    00000008
|cpuid   000001e8
|CPUID vers 15 rev 8
|Model: UL L2 132 (803/D220,D320) with 32 MB RAM.
|CPU(s): 1 x PA7300LC at 132.000000 MHz
|Searching for devices in PDC firmware... a newer box...
|Found devices:
|1. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0, 0x0, 0x0, 0x0
|2. Phantom PseudoBC GSC+ Port (7) at 0xffc01000, versions 0x505, 0x0, 0x0, 0x0, 0x0
|3. Bluefish Add-on FW-SCSI (4) at 0xfff84000, versions 0x13, 0x1, 0x89, 0x0, 0x80
|4. UL L2 132 (803/D220,D320) (0) at 0xfffbe000, versions 0x512, 0x0, 0x4, 0x0, 0x81
|5. UL L2 132 memory (1) at 0xfffbf000, versions 0x7f, 0x0, 0x9, 0x0, 0x0
|6. UL 550 Lasi Core BA (11) at 0xffd00000, versions 0x2f, 0x0, 0x81, 0x0, 0x0
|7. UL 550 Lasi Core RS-232 (10) at 0xffd05000, versions 0x2f, 0x0, 0x8c, 0x0, 0x0
|8. UL 550 Core SCSI (10) at 0xffd06000, versions 0x2f, 0x0, 0x82, 0x0, 0x0
|9. UL 350 Core LAN (802.3) (10) at 0xffd07000, versions 0x2f, 0x0, 0x8a, 0x0, 0x0
|10. UL 550 Core Centronics (10) at 0xffd02000, versions 0x2f, 0x0, 0x74, 0x0, 0x0
|11. UL 550 Core PC Keyboard (10) at 0xffd08000, versions 0x2f, 0x0, 0x84, 0x0, 0x0
|12. UL 550 Core PC Keyboard (10) at 0xffd08100, versions 0x2f, 0x0, 0x84, 0x0, 0x0
|13. UL 550 Core Wax BA (11) at 0xffe00000, versions 0x31, 0x0, 0x8e, 0x0, 0x0
|14. UL 550 Wax EISA BA (11) at 0xfc000000, versions 0x31, 0x0, 0x90, 0x0, 0x0
|15. UL 550 Wax Core RS-232 (10) at 0xffe02000, versions 0x31, 0x0, 0x8c, 0x0, 0x0
|That's a total of 15 devices.
|Linux version 2.3.29 (kirkb@chrome) (gcc version egcs-2.91.60 19981201 (egcs-1.1.1 release)) #80 Thu Jan 27
|08:20:20 PST 2000
|init_bootmem 739 8192
|free_bootmem 002e2e9c 01d1d164
|d_conf 41402000
|initrd: c01c9000-c026b800
|command_line: /stand/vmlinux HOME=/ TERM=LINUX console=tty
|
|pagetable_init
|kernel BUG at bootmem.c:166!
|kernel BUG at bootmem.c:206!
|kernel BUG at bootmem.c:206!
|kernel BUG at bootmem.c:206!
|
|PSW  : 000cff0a  GR 1 : c01b8000  GR 2 : c0151810  GR 3 : 00002007
|GR 4 : 00002007  GR 5 : c1ff7000  GR 6 : c010e000  GR 7 : c010e000
|GR 8 : 00000010  GR 9 : c0277000  GR10 : 00010000  GR11 : 00010000
|GR12 : ffffffff  GR13 : 00000000  GR14 : 000000fd  GR15 : f0100000
|GR16 : f0000a98  GR17 : f0000094  GR18 : 00000020  GR19 : c2000000
|GR20 : 00000000  GR21 : 005001ff  GR22 : c02e3000  GR23 : 0000000a
|GR24 : 00006ffe  GR25 : 00000000  GR26 : c1ff7000  GR27 : c01c2000
|GR28 : 0000001d  GR29 : c02837c0  GR30 : c01c4780  GR31 : c013de40
|SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000
|SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000
|IAOQ : c01b8174 c01b816c
|IIR  : 0e791222
|
|bad address c2000000 (code 15)
|Kernel panic: bad address
|
|In swapper task - not syncing
|

In looking at the code, what is barfing is the last call to
__alloc_bootmem() at the end of pagetable_init() in
arch/parisc/mm/init.c. This is the call which I believe is 
supposed to allocate page zero and in prep to clear it out.

Here is what I have defined in my include/linux/autoconf.h

#define AUTOCONF_INCLUDED
#define CONFIG_EXPERIMENTAL 1
#define CONFIG_PA7100 1
#define CONFIG_PA7300 1
#define CONFIG_PA_1x 1
#define CONFIG_PA_11 1
#define CONFIG_GSC 1
#define CONFIG_GSC_LASI 1
#define CONFIG_NET 1
#define CONFIG_SYSVIPC 1
#define CONFIG_SYSCTL 1
#define CONFIG_BINFMT_SOM 1
#define CONFIG_BLK_DEV_RAM 1
#define CONFIG_BLK_DEV_INITRD 1
#define CONFIG_PARIDE_PARPORT_MODULE 1
#define CONFIG_NETDEVICES 1
#define CONFIG_VT 1
#define CONFIG_VT_CONSOLE 1
#define CONFIG_GSC_PS2 1
#define CONFIG_SERIAL 1
#define CONFIG_SERIAL_EXTENDED 1
#define CONFIG_UNIX98_PTYS 1
#define CONFIG_UNIX98_PTY_COUNT (256)
#define CONFIG_ISO9660_FS 1
#define CONFIG_PROC_FS 1
#define CONFIG_EXT2_FS 1
#define CONFIG_MSDOS_PARTITION 1
#define CONFIG_PDC_CONSOLE 1
#define CONFIG_IODC_CONSOLE 1
#define CONFIG_MAGIC_SYSRQ 1

KMB
--
+============================================================+
|       Kirk Bresniker    	(916) 748-2393		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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Subject: [parisc-linux] What (in gory detail) do I need to compile for hppa1.1 (32bit)
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What tools/versions do I need to compile the kernel for hppa 1.1 32bit.
gcc? binutils, assembler? Linker. Does the SOM linker compile on
linux/x86?

Please give gory details.

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Grant Grundler <grundler@cup.hp.com> wrote:

>
> Works on B132L (early version B-class). Will try it on a newer
> C-class next.
>
  
  Thanks for helping out.

> One gripe: The test code doesn't automatically reboot the box.
> I use remote consoles and have to walk over to the machine room
> to cycle power...

  Sorry about that..my HP sits at my feet and I just hit the TOC button.
  I'll add this to the next test version.

>remember I'm doing this in my "spare" time.

  Same here.

  Jason.

  

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Subject: [parisc-linux] does make menuconfig break for you?
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i've been testing out make menuconfig and i've realised why it breaks for
a lot of people.

if you get something like this output:

/bin/bash scripts/Menuconfig arch/parisc/config.in
Using defaults found in .config
Preparing scripts: functions, parsingawk: Cannot open file drivers/sound/Config.in.
        A maximum of 54 files can be open at one time.
 The source line number is 10.
Awk died with error code 2. Giving up.
........................scripts/Menuconfig: ./MCmenu30: line 6: syntax error: unexpected end of file


then this means the number of files you may have open simultaneously is
too low.  the default under hpux seems to be 60.  to fix this, type:

/usr/bin/ulimit -n 100

which is enough to work for me.  happy configuring..


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Here's some small jobs which need doing.  None are critical, please let me
know if you decide to work on them:

 * NCR53c710 support.  This is the later scsi chipset in the 700 series.

 * Fixing floppy.c.  It doesn't compile right now.

 * Fix binfmt_elf.c.  It doesn't compile either.  Take care that adjusting
     the argv and envp pointer should be done in the opposite direction.
     I can't remember if we already did that or not -- check it against
     Linus'.



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SGI just released OpenGL Sample Implementation to Open Source Community.  

 < http://www.opengl.org/ > 


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& Simulation</td></tr>
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hspace=3D"2" width=3D"25" height=3D"17" align=3D"absmiddle"></td>
								<td align=3D"left"><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"1">General </font></td>
								<td align=3D"right"><img src=3D"Images/symbols/Dev.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"absmiddle"></td>
								<td align=3D"left"><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"1">Developer </font></td>
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hspace=3D"2" width=3D"25" height=3D"17" align=3D"absmiddle"></td>
								<td align=3D"left"><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"1">Applications &amp; Games </font></td>
								<td align=3D"right"><img src=3D"Images/symbols/Chip.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"absmiddle"></td>
								<td align=3D"left"><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"1">Accelerators &amp; Chips </font></td>
							</tr>
						</table>
						<br>
						<img src=3D"Images/symbols/Gen.gif" hspace=3D"2" width=3D"25" =
height=3D"17" align=3D"left"><a =
href=3D"http://www.sgi.com/newsroom/press_releases/2000/january/ogl_sampl=
e.html"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>SGI Release =
OpenGL Sample Implementation to Open Source =
Community</b></font></a><b><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><a =
href=3D"http://www.starstonesoftware.com/eots/"><br>
						</a></font></b><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/26/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> SGI has just released =
source code for its OpenGL Sample Implementation to the open source =
community. The Sample Implementation is a reference implementation of =
the OpenGL, GLU, and GLX APIs, and also serves as the basis for almost =
all vendor-supported OpenGL hardware drivers in existence today. This is =
a major step in ensuring the widespread availability of high-quality, =
high-performance OpenGL drivers for the Linux platform. The OpenGL =
Sample Implementation source code is available for download from SGI's =
open source developer Web site at <a =
href=3D"http://oss.sgi.com">http://oss.sgi.com</a>. The <a =
href=3D"http://oss.sgi.com/projects/ogl-sample/faq.html">FAQ</a> =
explains more about the sample implementation, its impact and how this =
is a very open license!<br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a =
href=3D"http://www.nichimen.com/news/index.shtml?page=3Dnews/mirai-1-1/mi=
rai-1-1"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>Mirai v 1.1 =
OpenGL Animation System enhances speed and adds =
features</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/26/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> Mirai is a integrated =
2D/3D editor and animation system for game developers. The new version =
enhances render speed supports depth of filed and orthographic =
rendering, adds more geometry and skeletal animation tools, adds =
flipbooks and animation curves, and more.<br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a =
href=3D"http://innovation3d.sourceforge.net/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>Innovation3D =
OpenGL modeler for Linux (beta)</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/25/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> Inovation3D is a =
well-featured, open source, OpenGL-accelerated 3D modeling program =
developed for Linux using the QT2.0 interface . It lets you: model with =
splines, meshes, and surfaces; sweep/revolve a spline into a triangle =
mesh or a Nurbs surface; modify object properties; texture map and fine =
tune the mapping coordinates with the UVEditor; create keyframe =
animations, using IK and skeletal deformation; and animate colors and UV =
coordinates.<br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a href=3D"http://www.gotm.org/marble/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>Crazy Marbles =
game adds OpenGL support</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/25/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> Saw on <a =
href=3D"http://www.voodooextreme.com/">Voodoo Extreme</a> a note that =
Crazy Marbles, the winner of the Golden Oldies contest, now includes =
support for OpenGL Crazy Marbles is game where you guide a marble =
through an obstacle range and try to reach the end as quickly as =
possible. 3 level demo version available<br>
						<br>
						</font><a href=3D"http://www.idsoftware.com/q1source/"><font =
size=3D"2"><img src=3D"Images/symbols/Dev.gif" hspace=3D"2" width=3D"25" =
height=3D"17" align=3D"left" border=3D"0"></font></a><a =
href=3D"http://www.sd.nl/demogl/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>DemoGL v 1.2 =
visual &amp; audio fx synchronization tools add GeForce support =
</b></font></a><a href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/25/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> DemoGL for Win32 lets =
you to time, synch and play OpenGL powered effects together with MP3 =
music The SDK comes with example code and complete documentation. DemoGL =
is currently available for Visual C++ version 5 and 6. It is free for =
graphical demos and other non commercial applications. The new version =
fixes memory leak and adds support for GeForce extensions<br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a href=3D"http://altern.org/zu/quantum.html"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>Quantum Galaxy =
OpenGL screensaver</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/25/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> A slick looking =
screensaver that takes full advantage of OpenGL.<br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a href=3D"http://www.mindrover.com"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>MindRover =
OpenGL game free add-on components</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/25/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> Coginitoy has released =
two free components that extend the funtionality of MindRover: Advanced =
Logic for programming your vehicle and Health sensors for vehicle =
repair. In MindRover you are a researcher on Europa. In your free time =
you re-program the vehicles to race around the hallways, battle it out =
with mini lasers and rocket launchers, and navigate through mazes. =
Reviwed on <a =
href=3D"http://www.gamepost.com/reviews/mindrover.html">Gamepost</a>.<br>=

						<br>
						</font><a href=3D"http://www.idsoftware.com/q1source/"><font =
size=3D"2"><img src=3D"Images/symbols/Dev.gif" hspace=3D"2" width=3D"25" =
height=3D"17" align=3D"left" border=3D"0"></font></a><a =
href=3D"http://www.jausoft.com"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>GL4Java 2.1.3.2 =
adds support for Mesa 3.1 (with OpenGL 1.2 features) and GLU =
1.2</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/25/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> Spazz3D for Win9x/NT =
lets you design, build, assign interactivity and animations to 3-D =
scenes &amp; Text. It outputs AVI or VRML 97 fies. OpenGL is used for =
lighting, texturing and rendering. A screensaver is included that lets =
you play your VRML worlds<br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a =
href=3D"http://www.gamespot.com/action/sof/index.html"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>Soldier of =
Fortune OpenGL game demo now available.</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/25/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> In Activision's SOF, you =
play the role of a military mercenary and hit the road. You'll have to =
use your reflexes and your wits to negotiate tense hostage situations or =
take down terrorist encampments in any number of international locales; =
from the dark subways of New York City to the roof of a speeding train =
in Russia. Requires an OpenGL accelerator.<br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2"><img src=3D"News/Images/altered.jpg" hspace=3D"2" =
width=3D"93" height=3D"70" align=3D"right" border=3D"0"></font><a =
href=3D"http://www.AlteredWorlds.com/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>Altered Worlds =
OpenGL screensaver now for Linux</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/21/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> Altered Worlds Free 3D =
OpenGL screensavers now run on Linux in addition to Win9x/NT. The Linux =
version also lets you run a spinning 3D desktop on your root window. =
Download is free and includes several screensavers.<br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a href=3D"http://www.spazz3d.com"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>Spazz3D authors =
VRML using OpenGL rendering</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/21/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> Spazz3D for Win9x/NT =
lets you design, build, assign interactivity and animations to 3-D =
scenes &amp; Text. It outputs AVI or VRML 97 fies. OpenGL is used for =
lighting, texturing and rendering. A screensaver is included that lets =
you play your VRML worlds<br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a =
href=3D"http://www.demonews.com/files/screensavers/dstrangesaver.asp"><fo=
nt face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>Strangesaver =
runs OpenGL apps as screensavers</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/20/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> Saw on DemoNews that in =
addition to running demos recorded in Quake, QUake II, Quake III, =
Half-Life, the Strangesaver screensaver now runsany executable as a =
screensaver, allowing users to run Open GL demos as screensavers The =
StrangeSaver Demos pack comes with three OpenGL demos, Colfire, Arc and =
SpringMatrix, (the pick from the <a =
href=3D"http://videogamer.dhs.org/">OpenGL Challenge</a>.<br>
						<br>
						</font><a href=3D"http://www.idsoftware.com/q1source/"><font =
size=3D"2"><img src=3D"Images/symbols/Dev.gif" hspace=3D"2" width=3D"25" =
height=3D"17" align=3D"left" border=3D"0"></font></a><a =
href=3D"http://www.demonews.com/hosted/nehe/opengl.htm"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>OpenGL fog =
tutorial</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/20/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> Here is a pretty short =
tutorial from NeHe Producitons aimed at teaching you the art of fog =
using OpenGL. You'll learn how to use 3 different fog filters, how to =
change the color of the fog, and how to set how far into the screen the =
fog starts and how far into the screen it ends. Definitely a nice effect =
to know! This is the 16th OpenGL tutorial on this excellent resources =
site.<br>
						<br>
						</font><img src=3D"Images/symbols/Gen.gif" hspace=3D"2" =
width=3D"25" height=3D"17" align=3D"left"><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"><img =
src=3D"News/Images/Linux_Mini.jpg" hspace=3D"2" width=3D"50" =
height=3D"45" align=3D"right" border=3D"0"></font><a =
href=3D"http://www.nvidia.com/Marketing/NewsAndEvents/Pages.nsf/pages/pr_=
011800"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>NVIDIA, SGI and =
VA Linux To Bring OpenGL 1.2 To Desktop Linux</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/19/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> NVIDIA (3D graphics =
hardware and software) , SGI (3D &amp; OpenGL) and VA Linux Systems (2D =
graphics and multi-monitor work) announced they will collaborate on the =
industry's first 100% OpenGL 1.2-conformant hardware - accelerated =
graphics subsystem for Linux workstations. The resulting NVIDIA-based =
desktops will be the first to provide hardware 3D transform and =
lighting, hardware 2D and video acceleration, video overlay, =
multi-monitor capability and full native OpenGL conformance under =
Linux.<br>
						</font><font face=3D"Arial,Helvetica,sans-serif" size=3D"2"><br>
						</font><a href=3D"http://www.idsoftware.com/q1source/"><img =
src=3D"Images/symbols/Dev.gif" hspace=3D"2" width=3D"25" height=3D"17" =
align=3D"left" border=3D"0"></a><a =
href=3D"http://www.math.tamu.edu/~eberle/pandc.html"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>Physically =
based modeling using OpenGL - examples &amp; source</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/19/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> Three source code demos =
based on physically based modeling: particle systems, Spring coupled =
particle system to make a deformable sphere, and rigid body dynamics =
simulation of a cube.<br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a =
href=3D"http://www.3dfiles.com/screensavers/gballs.shtml"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b>GBalls OpenGL =
screensaver</b></font></a><a =
href=3D"http://www.starstonesoftware.com/eots/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><b><br>
						</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2" color=3D"#ce0000"><i>01/19/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> <a =
href=3D"http://www.voodooextreme.com/v">Voodoo Extreme</a> notes a new =
OpenGL screensaver with dancing balls, much color, some effects.<br>
						<br>
						</font><font size=3D"4" face=3D"Arial,Helvetica,sans-serif" =
color=3D"#006400"><b>OpenGL Recent Headlines </b></font><font size=3D"4" =
face=3D"Arial,Helvetica,sans-serif" color=3D"#006633"><b>- </b></font><a =
href=3D"News/RecentNews.html"><font size=3D"2" =
face=3D"Arial,Helvetica,sans-serif" color=3D"#000010"><b>View Recent =
Headlines with Descriptions </b></font></a><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"><br>
						</font>
						<p><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a =
href=3D"http://www.cyberbotics.com/webots/index.html"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular" =
size=3D"2"><b>Webots 2 OpenGL-accelerated mobil robot =
simulator</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2"> </font><font face=3D"Arial,Helvetica,sans-serif" size=3D"2" =
color=3D"#ce0000"><i>01/17/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"><br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a href=3D"http://www.xdsoft.com/explorer/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular" size=3D"2"><b>3D =
Exploration 1.2 OpenGL-accelerated 3D viewer and format =
converter</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2"> </font><font face=3D"Arial,Helvetica,sans-serif" size=3D"2" =
color=3D"#ce0000"><i>01/17/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"><br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a =
href=3D"http://www.demonews.com/hosted/reallyslick/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular" =
size=3D"2"><b>Euphoria OpenGL screensaver</b></font></a><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> </font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2" =
color=3D"#ce0000"><i>01/17/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"><br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Chip.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left"></font><a =
href=3D"http://www.3dlabs.com/press/releases/Itanium.html"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular" =
size=3D"2"><b>3DLabs shows OpenGL ICD on Intel IA-64 (Itanium) =
Processor</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2"> </font><font face=3D"Arial,Helvetica,sans-serif" size=3D"2" =
color=3D"#ce0000"><i>01/17/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"><br>
						<br>
						</font><a href=3D"http://www.idsoftware.com/q1source/"><font =
size=3D"2"><img src=3D"Images/symbols/Dev.gif" hspace=3D"2" width=3D"25" =
height=3D"17" align=3D"left" border=3D"0"></font></a><a =
href=3D"http://members.tripod.de/mspoerl/m_index.html"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular" =
size=3D"2"><b>Sample code &amp; docs for character animation and motion =
capture using OpenGL </b></font></a><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2" =
color=3D"#ce0000"><i>01/17/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"><br>
						<br>
						</font><a href=3D"http://www.idsoftware.com/q1source/"><font =
size=3D"2"><img src=3D"Images/symbols/Dev.gif" hspace=3D"2" width=3D"25" =
height=3D"17" align=3D"left" border=3D"0"></font></a><a =
href=3D"http://morgner.com/ogl/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular" =
size=3D"2"><b>OglCLib C++ class for 3D shapes using OpenGL =
</b></font></a><font face=3D"Arial,Helvetica,sans-serif" size=3D"2" =
color=3D"#ce0000"><i>01/17/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"><br>
						<br>
						</font><a href=3D"http://www.idsoftware.com/q1source/"><font =
size=3D"2"><img src=3D"Images/symbols/Dev.gif" hspace=3D"2" width=3D"25" =
height=3D"17" align=3D"left" border=3D"0"></font></a><a =
href=3D"http://threedsia.sourceforge.net/about.html"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular" =
size=3D"2"><b>3dsia OpenGL virtual reality shell for =
Linux</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2"> </font><font face=3D"Arial,Helvetica,sans-serif" size=3D"2" =
color=3D"#ce0000"><i>01/12/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"><br>
						<br>
						</font><a href=3D"http://www.idsoftware.com/q1source/"><font =
size=3D"2"><img src=3D"Images/symbols/Dev.gif" hspace=3D"2" width=3D"25" =
height=3D"17" align=3D"left" border=3D"0"></font></a><a =
href=3D"http://www.nvidia.com/Marketing/Developer/DevRel.nsf/3e0a464ce391=
addc8825681700740113/f706b8da926e1c548825685c006763d8/$FILE/OpenGL_Perf_F=
AQv1.doc"><font face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular" =
size=3D"2"><b>GeForce 256 OpenGL T&amp;L Performance FAQ =
</b></font></a><font face=3D"Arial,Helvetica,sans-serif" size=3D"2" =
color=3D"#ce0000"><i>01/12/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2">.<br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a href=3D"http://www.treadmarks.com/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular" =
size=3D"2"><b>Tread Marks OpenGL tank racing &amp; combat game is =
released</b></font></a><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2"> </font><font face=3D"Arial,Helvetica,sans-serif" size=3D"2" =
color=3D"#ce0000"><i>01/12/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"><br>
						<br>
						</font><font size=3D"2"><img src=3D"Images/symbols/Apps.gif" =
hspace=3D"2" width=3D"25" height=3D"17" align=3D"left" =
border=3D"0"></font><a href=3D"http://turbolode.homepage.com/"><font =
face=3D"Arial,Helvetica,Geneva,Swiss,SunSans-Regular" =
size=3D"2"><b>Turbo Load OpenGL game - seeks testers</b></font></a><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"> </font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2" =
color=3D"#ce0000"><i>01/11/00</i></font><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"><br>
						<br>
						</font><a href=3D"News/Archives99/Nov99.html"><font =
face=3D"Arial,Helvetica,sans-serif"><b>News &amp; Features =
</b></font></a><font face=3D"Arial,Helvetica,sans-serif">from November =
1999 includes the following items among others: </font></p>
						<div align=3D"left">
							<ul>
								<li><font face=3D"Arial,Helvetica,sans-serif" size=3D"2">Synapes =
3D interface goes Open Source</font>
								<li><font face=3D"Arial,Helvetica,sans-serif" size=3D"2">3D MiDi =
is like OpenGL winAMP for Midi</font>
								<li><font face=3D"Arial,Helvetica,sans-serif" size=3D"2">Toon3D =
game creator engine</font>
								<li><font face=3D"Arial,Helvetica,sans-serif" size=3D"2">Siz =
lesson OpenGL game tutorial</font>
								<li><font face=3D"Arial,Helvetica,sans-serif" size=3D"2">New =
versions of GLSetup</font>
								<li><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2">Balder's Gate 2 to use OpenGL</font>
								<li><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2">Netreality for Linux - searches interenet</font>
							</ul>
							<p><font face=3D"Arial,Helvetica,sans-serif"><img height=3D"14" =
width=3D"300" src=3D"Images/OGL_Main4.gif" border=3D"0" alt=3D"Footer =
graphic"> </font><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2"><br>
							</font></p>
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questions or comments about this web site, please send email to <a =
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href=3D"http://www.artlab.com">ARTLab</a> </font></p>
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a registered trademark of Silicon Graphics Inc</b></font><font =
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					</td>
					<td valign=3D"top"><img height=3D"10" width=3D"6" =
src=3D"Images/dot_clear.gif"></td>
					<td bgcolor=3D"black" width=3D"1"><img height=3D"10" width=3D"2" =
src=3D"Images/dot_clear.gif"><img height=3D"10" width=3D"1" =
src=3D"Images/dot_clear.gif"></td>
					<td valign=3D"top" width=3D"1" bgcolor=3D"#dedede"><img =
height=3D"10" width=3D"3" src=3D"Images/dot_clear.gif"></td>
					<td width=3D"150" valign=3D"top" bgcolor=3D"#dedede">
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height=3D"11" width=3D"6" src=3D"Images/redarrow.gif" hspace=3D"2"> =
OpenGL Classifieds </b></font><font face=3D"Arial,Helvetica,sans-serif" =
size=3D"2"><br>
										Offer a job, seek a job, post services in the <a =
href=3D"http://www.opengl.org/Boards/Classifieds/Classifieds.html">classi=
fieds</a>.</font></td>
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							<p><font face=3D"Arial,Helvetica,sans-serif"><b>
							<table border=3D"0" cellpadding=3D"2" cellspacing=3D"0">
								<tr>
									<td width=3D"150"><font =
face=3D"Arial,Helvetica,sans-serif"><b><img height=3D"11" width=3D"6" =
src=3D"Images/redarrow.gif" hspace=3D"2"> Developer Features =
</b></font><font face=3D"Arial,Helvetica,sans-serif" size=3D"2"><br>
										<a href=3D"News/Special/OGLextensions/OGLextensions.html">All =
about OpenGL Extensions - for 3D Application &amp; Game =
Developers</a></font>
										<p><a href=3D"News/Special/StencilTalk/index.htm"><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2">Creating Reflections and =
Shadows using Stencil Buffers</font></a></p>
										<p><a href=3D"News/Special/oim/Orth.html"><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2">Really Fast Lighting with =
Orthogonal Illumination Maps</font></a></p>
										<p><a href=3D"News/Special/oimupdate/perpixel.html"><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2">Per-Pixel Lighting for =
Unextended OpenGL</font></a></p>
										<p><a href=3D"News/Special/U2_Embedded_OpenGL.html"><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2">Q&amp;A</font></a><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2">: OpenGL for embedded =
systems (e.g. the U2 spy plane)</font></p>
										<p><a href=3D"News/Special/BGL.html"><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"><b>Broadcast Graphics =
Language and OpenGL</b></font></a><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2"><b> : A presentation to =
the ARB</b></font></p>
										<p><a =
href=3D"Coding/KilgardTechniques/oglpitfall/oglpitfall.html"><font =
face=3D"Arial,Helvetica,sans-serif" size=3D"2">Avoiding 16 Common OpenGL =
Pitfalls</font></a></p>
										<p><a href=3D"Products/DriverTypes.html"><font =
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From: "Pedro G. Gonnet" <pedro@vis.ethz.ch>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] serail console on 735/99
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hello!

i just got a hp9000/735/99 without a graphics adaptor and a
fddi-interface. i tried to boot it over a vt100 (yup, not a typo), but
all i get is a blank screen and about 5 min of disk activity.

the terminal is set to 9600 baud and connected to the serial port labled
"a" like the howto says, but i don't get anything on the screen and
hitting keys doesn't help.

in an older posting i saw something about the "TOC"-button, but that
doesn't seem to work either.

help.

pedro gonnet
pgonnet@student.ethz.ch


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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Lan configuration failures
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Xref: news.gmane.org gmane.linux.ports.parisc:6758

Today some people have seen a couple of failures using the new ram disk
that willy generated. This new ram disk contains a program that tries
to configure a network card.  I have tracked down the problems, and
found them to both be configuration related:

    1) First, you must have CONFIG_INET set. If you don't, the socket
    call will fail, and you will get a "Bad file number" failure,
    due to the code trying to do an ioctl call on the -1 returned
    from the socket call failure.

    2) You must have the tulip driver configured in (CONFIG_DEC_ELCP)
    which also requires things like CONFIG_PCI, etc. If you have
    an older box that does not contain a tulip based network interface,
    or if you have a newer non Lasi box, you will not be able to
    get this to work. You must see "eth0:" debug output.

    If the hardware is not configured properly, the socket call will
    succeed, however the following ioctl will fail and you will get
    a "No such device" error.

Both of the failures will lead to the program exiting, which finally
will result in a "Kernel panic: Attempted to kill init!" failure.

John
jsm@fc.hp.com


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Subject: [parisc-linux] init_task.c dependency problem
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With my most recent commit's, I made a change in a header file that
arch/parisc/kernel/init_task.c depends on. However, due to the makefile
games used to build this file (to properly align the task structure),
the dependencies for init_task.c are not honored (the .depend file
lists dependencies for init_task.o, but we build init_task0.o and
init_task1.o instead).

What this means is that init_task.c will not be rebuilt if you
just cvs update your build area. In that case, the kernel will
halt immediately after the "execve /sbin/init ...." message (i.e.
it will print halted and then print a register dump). If you
are building from a new area, or you make clean, you will not
have this problem. A simple workaround (if you don't want to do
a make clean) is to "touch arch/parisc/kernel/init_task.c" so that
it will be rebuilt. You could also just remove init_task0.o and
init_task1.o to force the rebuild.

Yesterday's commits allowed fork() from userland to work. Today's
commits allow exec() from userland to work.

John Marvin
jsm@fc.hp.com


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From: "Pedro G. Gonnet" <pedro@vis.ethz.ch>
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Subject: Re: serial console on 735/99
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hello!

forgot to mention, i don't have a HIL keyboard, so unplugging it is not
an option. anybody know if it might have something to do with the vt100?

btw, any chance i could get my hands on an "normal" ethernet-adaptor for
this machine? fddi-cards cost a fortune...

thanks in advance
pedro gonnet


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From: eric@cirr.com (Eric Schnoebelen)
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Subject: Re: serial console on 735/99
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"Pedro G. Gonnet" writes:
- forgot to mention, i don't have a HIL keyboard, so unplugging it is not
- an option. anybody know if it might have something to do with the vt100?

	It's possible that someone reset the speeds on the
serial port, or configured the system to use the secondary
serial port as the console.  In any event, I'd suggest removing
the battery for a while, and then booting the system.. With no
graphics adapter, it will default to ttya at 9600/8n1.

- btw, any chance i could get my hands on an "normal" ethernet-adaptor for
- this machine? fddi-cards cost a fortune...

	As I recall, the ethernet module for these are no longer
in the HP price book.. You might try contacting an used HP
equipment reseller and see what they want for one.. Otherwise,
the next best option is a FDDI<->ethernet hub/router..

--
Eric Schnoebelen		eric@cirr.com		http://www.cirr.com
	Due to circumstances beyond your control, you are master of
		your fate and captain of your soul.


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: serial console on 735/99
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"Pedro G. Gonnet" wrote:

> btw, any chance i could get my hands on an "normal" ethernet-adaptor for
> this machine? fddi-cards cost a fortune...

I thought the 735 has ethernet built-in.
IIRC, it's an AUI and you need a MAU thingy to connect to 10BT.

grant

> thanks in advance
> pedro gonnet
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Subject: Re: [parisc-linux] Lan configuration failures
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John Marvin wrote:
> Today some people have seen a couple of failures using the new ram disk
> that willy generated. This new ram disk contains a program that tries
> to configure a network card.  I have tracked down the problems, and
> found them to both be configuration related:
> 
>     1) First, you must have CONFIG_INET set. If you don't, the socket
>     call will fail, and you will get a "Bad file number" failure,
>     due to the code trying to do an ioctl call on the -1 returned
>     from the socket call failure.
...

John,
I found out Mathew Wilcox (bless his soul) changed parisc/config.in
on Saturday (1/29/2000) so CONFIG_INET (and everything else needed
for an A180) is enabled by default.
Basically, I needed to cvs update/rm .config/make oldconfig/...

thanks
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Subject: Re: serial console on 735/99
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Grant Grundler writes:
- "Pedro G. Gonnet" wrote:
- > btw, any chance i could get my hands on an "normal" ethernet-adaptor for
- > this machine? fddi-cards cost a fortune...
- 
- I thought the 735 has ethernet built-in.
- IIRC, it's an AUI and you need a MAU thingy to connect to 10BT.

	It was possible to purchase the 735 with a FDDI port on
the back replacing the standard ethernet port.  I have three
such systems from an old CONVEX MP0 (`Merlin') cluster, circa
1995.

--
Eric Schnoebelen		eric@cirr.com		 http://www.cirr.com
	Worry is like a rocking chair: It gives you something to do,
			but doesn't get you anywhere.


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From: Frank Benke <frank.benke@web.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: serial console on 735/99
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hi all

Eric Schnoebelen schrieb:

> Grant Grundler writes:
> - "Pedro G. Gonnet" wrote:
> - > btw, any chance i could get my hands on an "normal" ethernet-adaptor for
> - > this machine? fddi-cards cost a fortune...
> -
> - I thought the 735 has ethernet built-in.
> - IIRC, it's an AUI and you need a MAU thingy to connect to 10BT.
>
>         It was possible to purchase the 735 with a FDDI port on
> the back replacing the standard ethernet port.  I have three
> such systems from an old CONVEX MP0 (`Merlin') cluster, circa
> 1995.
>

yes it is .. i dont have the part number of the board,
but i had 2 735 in a fddi-loop running at cebit 97


>
> --
> Eric Schnoebelen                eric@cirr.com            http://www.cirr.com
>         Worry is like a rocking chair: It gives you something to do,
>                         but doesn't get you anywhere.
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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Subject: Re: serial console on 735/99
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Xref: news.gmane.org gmane.linux.ports.parisc:6766

hi all

Grant Grundler schrieb:

> "Pedro G. Gonnet" wrote:
>
> > btw, any chance i could get my hands on an "normal" ethernet-adaptor for
> > this machine? fddi-cards cost a fortune...
>
> I thought the 735 has ethernet built-in.
> IIRC, it's an AUI and you need a MAU thingy to connect to 10BT.
>

the aui is an "inlay" board , you can change

regards frank


>
> grant
>
> > thanks in advance
> > pedro gonnet
> >
> > ---------------------------------------------------------------------------
> > To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> > `unsubscribe' as the subject.
> >
>
> Grant Grundler
> Unix Development Lab
> +1.408.447.7253
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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From: "Simen Timian Thoresen" <simentt@dolphinics.no>
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Subject: Re: serial console on 735/99
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> hello!
> 
> the problem is that the fddi was built in instead of aui
> (special-edition kind of thing) since the machine used to be in a
> cluster (hence also no monitor or keyboard). i was wondering if i could
> find something more along the lines of the eisa-slot...

Right. The EISA slot can function as a normal ISA slot, so you can stick any 
old ISA nic into it. The question then is what cards are supported by HP, 
right?
 
> i don't know if the fddi can be yanked out and replaced by aui or
> anyhing (haven't opened the machine - yet), but if it can - anybody want
> to trade?

As my EISA card is a CDDI-card (pretty useless Copper Distributed Digital 
Interface - lowtech fddi afaik), I need my aui-card myself. But if anybody 
wants some older 'DDI-technology, I'll donate my CDDI-card to whoever 
swaps his AUI-card with your FDDI-card.

I guess I'm somewhat less helpfull now than I thought I was, but still. ;-)

Yours,
-Simen
--
Simen Thoresen, Beowulf-cleaner and random artist.

Er det ikke rart?
The gnu RART-project on http://valinor.dolphinics.no:1080/~simentt/rart


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From: "Pedro G. Gonnet" <pedro@vis.ethz.ch>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: serial console on 735/99
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hello!

> Right. The EISA slot can function as a normal ISA slot, so you can stick any
> old ISA nic into it. The question then is what cards are supported by HP,
> right?

or better: what cards will parisc-linux support? i've got a bunch of old
isa cards lying around from old pc's...

cheers
pedro


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On Wed, 26 Jan 2000, Alex deVries wrote:

> "Brian S. Julin" wrote:
> > Searching for devices in PDC firmware...   an older box...
> > Found devices:
> > 1. Mirage Jr GSC Builtin Graphics (10) at 0xf8000000, versions 0x12,
> > 0x0, 0x85, 0x0, 0x0
> > 
> > [...]  more devices, some of which I don't have.
> > 
> > 15. Mirage Jr (715/64) (0) at 0xfffbe000 versions 0x60a, 0x0, 0x4, 0x0,
> > 0x81
> > 16. Mirage Jr (1) at 0xfffbf000, vesions 0x4a, 0x0, 0x9, 0x0, 0x0
> > That's a total of 16 devices.
> 
> Which ones don't you have?  Could you paste the entire list?

Actually I'm typing by hand since I'm not using a serial console :).
Of the devices listed, the one I know for sure I don't
have is the floppy:

8. Mirage Jr Core PC Floppy (10) at 0xf010a000, versions 0x28, 0x0, 0x83,
0x0, 0x0

...there's also these which are suspect, since I have HIL, though
their may be PC keyboard ports back there I haven't looked.....

9. Mirage Jr Core PC Keyboard (10) at 0xf0108000, versions 0x28, 0x0,
0x84, 0x0, 0x0
10. Mirage Jr Core PC Keyboard (10) at 0xf0108100, versions 0x28, 0x0,
0x84, 0x0, 0x0

Question for the kernel high priests on the list -- is the rest of
the input-linux stuff going into the 2.3 series soon -- if so I think 
I'll work on converting the HIL driver over to linux-input and fitting
the linux-input patch to this kernel (which luckily there exists one for).

--
P.S. Sorry about bounced mail; have no idea what that was all about.


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Subject: [parisc-linux] State Of The Port
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Here are Grant's notes from today's meeting with a few annotations:
---
Attendees (in no particular order):
        Mike Ang
        Thomas Bogendorf
        Mathew Wilcox
        Grant Grundler
        Martin Petersen
	plus some lurkers

Tulip/Networking We're still having a problem with media selection and
interrupts on A180, and endianness problems on 21140 chipset PCI cards.
Fleedwood made good progress with a pcnet32 card with endian clean driver,
exposing bugs in the tcp checksum code which have been largely fixed.

Thomas Bogendorf will be getting tulip working very soon.
    Expects to have it working by this weekend. Lack of endianess
    support is the main problem.  2.2.14 is the "latest" tulip.c
    but has no big endian support.

Mike Ang will send the outputs of the tulip diagnostic program in
cvsroot:/userspace/ktulip-diag.c to Donald Becker for help.


SuperIO serial

SuperIO serial support is required to get userland serial console working
on C3000.

Martin Petersen looked at data sheet and it's way too complicated.
Grant Grundler: I think the various components have to share IRQ lines.
        Since this bugger is 3 PCI functions and only function 1 (or 2)
        has the IRQ line, it gets a bit messy.

        I think we also need to get some specifics on how firmware
        *reports* those devices. I helped set some of that up for HP-UX
        but that was over a year ago.
        IIRC, the function 0 gets advertised first to HP-UX but it's
        interrupt comes through function 1. So the driver for function 0
        has to poke registers on function 1.

Grant - will check if anyone in HP is interested in making this work.
Mike volunteered to start looking at it on Monday (2/7/2000).


Interrupts on C3000
Grant Still working on it.
Fleed is still having/had trouble with card-mode dino.
    dino.c.ilr data page faulted. Grant will look at this
    after spending some more time on C3k problems.

Willy mentioned that we will have to think about running on 64bit at some
point.


Short term goals (roughly in order)
- serial console input and output
- networking
- nfs root filesystem
- scsi support


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On Fri, Feb 04, 2000 at 11:17:33PM -0500, Michael Ang wrote:
>         Thomas Bogendorf

look it up in the From: line:-)

>     Expects to have it working by this weekend. Lack of endianess
>     support is the main problem.  2.2.14 is the "latest" tulip.c
>     but has no big endian support.

the 2.2.14 tulip.c driver has big endian support as well as Donald's latest 
alpha version.

> Willy mentioned that we will have to think about running on 64bit at some
> point.

IMHO, it's way too early to even think about it. Of course 64bit is sexy,
but without a working 32bit userland it's a too big can of worms to open
right now. Linux/MIPS64 hasn't started before a reasonable distribution
existed, and I'm sure this wasn't a bad descision then.

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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On Sat, Feb 05, 2000 at 03:37:59PM +0100, Thomas Bogendoerfer wrote:
> > Willy mentioned that we will have to think about running on 64bit at some
> > point.
> 
> IMHO, it's way too early to even think about it. Of course 64bit is sexy,
> but without a working 32bit userland it's a too big can of worms to open
> right now. Linux/MIPS64 hasn't started before a reasonable distribution
> existed, and I'm sure this wasn't a bad descision then.

We want to get people working on userland as soon as possible since this
parallelises well with other people hacking on the kernel.  However, we
need to go 64-bit inorder to support the L-class and similar machines.
I also mentioned that we need ELF support RSN as it is hurting us quite
badly.  I know Sammy has been working on getting 32-bit ELF going on
his 712 for the kernel.  Sammy, how's that going?


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Michael Ang wrote:
> 
> Here are Grant's notes from today's meeting with a few annotations:

Mike,
thanks for touching up the notes...apologies to Thomas for mangling
his name. My error.

> 
> Interrupts on C3000
> Grant Still working on it.

I think it's working now. It still needs more work but folks could
start using it at least. I expect the code to work on j5k but
don't know if either processor has "0xfffa0000" HPA. If one does,
it should work too. All I/O interrupts will be directed to that
processor for now.

Feel free to remove the:
	do_irq_mask 00200000 c02d1324 c01f6500
	iosapic_interrupt: irq 266 line 1 eoi fed32840

messages if they get in your way.

I tested using eepro100.c driver (CONFIG_EEXPRESS_PRO100=y)
and added "#define USE_IO" near the top. I can't say the interface
is totally functional (I haven't the setup to test ping) but the hub
seems happy.


> Fleed is still having/had trouble with card-mode dino.
>     dino.c.ilr data page faulted. Grant will look at this
>     after spending some more time on C3k problems.

I'm going to look at this next before working more on iosapic.c.
Thomas is going to send me console output and I'll see what I
can make out of that.

> Short term goals (roughly in order)
> - serial console input and output
> - networking
> - nfs root filesystem
> - scsi support

More important than any of these, IMHO, is FDB. And I forgot to
mention it at the meeting. Future progress would be substantialy
faster if we had a debugger. I don't feel competent to work on
that. Anyone interested in (or already) pursuing this?

thanks,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Hi,

I've checked in a new tulip driver, which works for me on the onbard tulip
of the A180. I've tried to use Donald's latest driver (0.91x), but this
driver needs some pci infrastructure, which isn't available in our 2.3 tree,
yet. So I ported the 2.2.14 driver and added cache flushes. Before
that I've added the cache flushes to tulip 0.91x, so whenever we update
our tree, I should have an updated tulip very quick.

The 2.2.14 tulip didn't like the SROM provided by the onboard tulip,
because it didn't provide information about the attached phy (and the
default media is in the wrong endian, but that isn't a big problem).
I fixed that by just not allocating a media table, which works in
my case. It's possible that this may break later. The SROMs of the
tulips behind the card mode dino are looking stranger, they seem
to be from a time before Digital released a sane SROM documentation
and might confuse the driver as well. But since the machine hangs,
when the driver tries to probe the second tulip on the card, this
isn't an issue, yet.

I'm now looking into getting nfs root working.

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: ELFness and 64bit
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Xref: news.gmane.org gmane.linux.ports.parisc:6775

On Sat, Feb 05, 2000 at 01:26:13PM -0500, willy@thepuffingroup.com wrote:
> We want to get people working on userland as soon as possible since this
> parallelises well with other people hacking on the kernel.  However, we
> need to go 64-bit inorder to support the L-class and similar machines.

sure, but there aren't enough people to split between even more machines.
I'd say let one person look into 64bit issues for now, and do the real
work, when 32bit is (more) solid.

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Merge with 2.3-current
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Hi,

in our IRC meeting on friday we had a little discussion whether to merge
with a more recent 2.3 kernel version or not. I now have a reason why we
need to update ASAP to a newer kernel. NFS is broken in 2.3.29 :-(
I'm going to update my local tree to see whether we need to do more work
for nfs.

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Tulip driver
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Thomas Bogendoerfer wrote:
> ...The SROMs of the
> tulips behind the card mode dino are looking stranger, they seem
> to be from a time before Digital released a sane SROM documentation
> and might confuse the driver as well. But since the machine hangs,
> when the driver tries to probe the second tulip on the card, this
> isn't an issue, yet.

Thomas,
I looked at the console output you sent me and I saw several things
not correct (which I'm trying to fix) right away:
o I/O BAR's where not getting programmed correctly.
  (both tulips fighting for the same I/O Port address (0) caused the hang)
o command register was not set
o cacheline size and latency timer were not getting set.

Now I have the opposite problem: PCI code finds and initiliazes the
tulips behind card-mode Dino but tulip.c doesn't want to talk to them.
So I can't really say for sure my changes work.

I've committed my code anyway since the oboard tulip continues to work.
Perhaps you can take another look at this.

thanks
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Subject: Re: [parisc-linux] Boot info from 715/64
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Xref: news.gmane.org gmane.linux.ports.parisc:6778

On Wed, Feb 02, 2000 at 03:55:08PM -0500, Brian S. Julin wrote:
> Question for the kernel high priests on the list -- is the rest of
> the input-linux stuff going into the 2.3 series soon -- if so I think 
> I'll work on converting the HIL driver over to linux-input and fitting
> the linux-input patch to this kernel (which luckily there exists one for).

Last I heard, it was a 2.5 thing.  If you want to do kernel work on a
715/64, the ncr scsi driver needs to be looked at.  It may just work if
you try it :-) [I suspect it may need some cache flushing added though]


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From: Robin Tawab <robin@wizard.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot info from 715/64
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Xref: news.gmane.org gmane.linux.ports.parisc:6779

OK guys, i give up, could somebody out there help me. 
Someone has subscribed me to this mailing list, it was 
not me. I would now like to unsubscribe but the stuipid 
mailer answers me that my email adress was not found.

Could someone out there please help me to get 
unsubscribed, please?

thanx in advance
robin.

Quoting willy@thepuffingroup.com:

> On Wed, Feb 02, 2000 at 03:55:08PM -0500, Brian S. 
Julin wrote:
> > Question for the kernel high priests on the list -- 
is the rest of
> > the input-linux stuff going into the 2.3 series soon 
-- if so I think
> > I\'ll work on converting the HIL driver over to 
linux-input and fitting
> > the linux-input patch to this kernel (which luckily 
there exists one
> for).
>
> Last I heard, it was a 2.5 thing.  If you want to do 
kernel work on a
> 715/64, the ncr scsi driver needs to be looked at.  It 
may just work if
> you try it :-) [I suspect it may need some cache 
flushing added though]
>
> 
--------------------------------------------------------
-------------------
> To unsubscribe: send e-mail to 
parisc-linux-request@thepuffingroup.com with
> `unsubscribe\' as the subject.
>
> 


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From: "T. Martin" <catfish@alltel.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PA-RISC User Land
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 Hello, 
 I'll be more than happy to play in user land as soon as theres enough
stablility in the port. I've got 5 old HP-Apollos laying around. 
 Actually one is up and running been up for last 2.5 monthes with HP-UX
9.0 just waiting for a Linux port as trying to use HP-Unix is like pulling
teeth. 
 I don't have room for gcc on the machine is there a way to cross-compile
a kernel off an x86 machine? 
Terry, 



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From: Phil Schwan <phil@linuxcare.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:6782

On Feb 06, T. Martin wrote:
>  I don't have room for gcc on the machine is there a way to cross-compile
> a kernel off an x86 machine? 

Not just yet; Dave O'Neill is working on making the SOM linker
cross-platform friendly (I believe he has it working on HPUX, and now 
needs to squash endian-related bugs).  I'm sure he'd love a helping
hand...

-Phil

-- 
Phil Schwan, Senior Linux Consultant, Linuxcare, Inc.
415.354.4878 x271 tel, 415.701.7457 fax
pschwan@linuxcare.com http://www.linuxcare.com/
Linuxcare.  Support for the revolution.


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Xref: news.gmane.org gmane.linux.ports.parisc:6783

On Sun, Feb 06, 2000 at 08:54:23AM -0800, Grant Grundler wrote:
> Now I have the opposite problem: PCI code finds and initiliazes the
> tulips behind card-mode Dino but tulip.c doesn't want to talk to them.
> So I can't really say for sure my changes work.

The checked in tulip version probes for only one tulip chip. If you
want to make the driver probe for all tulips, search for the second
FIXME in the driver and remove the break; after the comment.

> I've committed my code anyway since the oboard tulip continues to work.
> Perhaps you can take another look at this.

still no go, now it hangs while probing the first tulip on the card.

Thomas.

PS: Anybody who wants to play with the tulip driver, use revision 1.4
of arch/parisc/kernel/irq.c. Newer versions got cleaned up, so they
don't work anymore:-( But with the old irq.c bootp handshake works and
I don't have to use the hacked sash anymore.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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From: Chris Fowler <chrisf@computone.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Video Modes on 715/33
Date: Mon, 7 Feb 2000 14:52:05 -0500
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I have a 715/33 and a FF monitor.  I need to change the video mode and
frequency of the HP so I can use my monitor.  Does anyone know how to do
this?

Thanks,
Chris


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From: Phil Schwan <phil@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] CVS commit messages
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To: parisc-linux@thepuffingroup.com
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I put some scripts in place (thanks OpenBSD!) that nicely coalesce cvs
commit messages into one message (instead of a commit message for
every directory that had a changed file).

Since this obsoletes the parisc-linux-cvs-digest value of 10 minutes
(which was put in place to do the same thing), I've increased the
parisc-linux-cvs-digest maximum time to one day; people who want the
old behaviour should switch to parisc-linux-cvs, and people who would
rather have one message per day should stay on -digest.

-Phil

-- 
Phil Schwan, Senior Linux Consultant, Linuxcare, Inc.
415.354.4878 x271 tel, 415.701.7457 fax
pschwan@linuxcare.com http://www.linuxcare.com/
Linuxcare.  Support for the revolution.


From - Thu Nov 08 21:11:44 2018
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From: Michael Ang <mang@subcarrier.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Merging with 2.3.42 today
Date: Tue, 08 Feb 2000 04:32:16 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:6786

Picking up NFS support seems like a good reason to merge very soon.  The
diff between our current tree (based on 2.3.29) and the latest kernel
version 2.3.42 is large (~350k lines!)

The merge will have conflicts with the following files:
./drivers/block/rd.c:<<<<<<< rd.c
./drivers/char/serial.c:<<<<<<< serial.c
./drivers/net/tulip.c:<<<<<<< tulip.c
./fs/Makefile:<<<<<<< Makefile
./fs/buffer.c:<<<<<<< buffer.c
./include/linux/init.h:<<<<<<< init.h
./include/linux/mm.h:<<<<<<< mm.h
./include/linux/ncp_fs.h:<<<<<<< ncp_fs.h
./init/main.c:<<<<<<< main.c
./kernel/resource.c:<<<<<<< resource.c
./mm/Makefile:<<<<<<< Makefile
./mm/bootmem.c:<<<<<<< bootmem.c
./mm/filemap.c:<<<<<<< filemap.c 
(plus some other spurious conflicts)        

Here's my plan:
- lay down a LINUS_2342_PREMERGE static tag this afternoon (~2pm EST)
- the tree is closed -> no one checks in
- check in the 2.3.42 code
- everyone works on fixing merge problems/regressions only
  - get back to a shell prompt/ping response
- lay down LINUS_2342_DEVEL_BASE
- tree open for new features

Merging will generate large diffs, and most will be unrelated to
PA-RISC.  This is why I ask that no new features be checked in between
the PREMERGE and DEVEL_BASE tags.  Those two tags will isolate the big
changes so that new PA-RISC features are not lost in the
noise.  The whole process should only take an hour if the people who
"own" the files with conflicts are available.

If you want to get a head start, do a "cvs up -j linus2329 -j linus2342
somefile_or_somedir" to merge in Linus' changes between 2.3.29 and
2.3.42 into your working directory.  But please don't check in any fixes
until after Linus' code is merged into the tip.  Thanks for your
cooperation/patience.

I would have done this now, but it would be bad form to leave the tree
broken and go home to sleep.  If someone else wants to start this
earlier in the day, feel free. :)

	- Mike.

Thomas Bogendoerfer wrote:
> 
> in our IRC meeting on friday we had a little discussion whether to merge
> with a more recent 2.3 kernel version or not. I now have a reason why we
> need to update ASAP to a newer kernel. NFS is broken in 2.3.29 :-(
> I'm going to update my local tree to see whether we need to do more work
> for nfs.


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From: "Dave O'Neill" <doneill@linuxcare.com>
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Subject: Re: [parisc-linux] PA-RISC User Land
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Cc: "T. Martin" <catfish@alltel.net>, parisc-linux@thepuffingroup.com
To: Phil Schwan <phil@linuxcare.com>
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On Sun, 6 Feb 2000, Phil Schwan wrote:

> Not just yet; Dave O'Neill is working on making the SOM linker
> cross-platform friendly (I believe he has it working on HPUX, and now 
> needs to squash endian-related bugs).  I'm sure he'd love a helping
> hand...

Sure, if you're interested in taking a look, I'd love it.  The linker is
in CVS (under linker/).  

A little status update:  Right now, it manages to parse and load (possibly
even correctly) the object files, but it still chokes on libraries, and
doesn't yet output anything.

Dave
-- 
Dave O'Neill, Linux Consultant, Linuxcare, Inc.
doneill@linuxcare.com, http://www.linuxcare.com/ 
Linuxcare. Support for the revolution.


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From: Sam Creasey <sammy@sammy.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ELFness and 64bit
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On Sat, 5 Feb 2000 willy@thepuffingroup.com wrote:

> On Sat, Feb 05, 2000 at 03:37:59PM +0100, Thomas Bogendoerfer wrote:
> > > Willy mentioned that we will have to think about running on 64bit at some
> > > point.
> > 
> > IMHO, it's way too early to even think about it. Of course 64bit is sexy,
> > but without a working 32bit userland it's a too big can of worms to open
> > right now. Linux/MIPS64 hasn't started before a reasonable distribution
> > existed, and I'm sure this wasn't a bad descision then.
> 
> We want to get people working on userland as soon as possible since this
> parallelises well with other people hacking on the kernel.  However, we
> need to go 64-bit inorder to support the L-class and similar machines.
> I also mentioned that we need ELF support RSN as it is hurting us quite
> badly.  I know Sammy has been working on getting 32-bit ELF going on
> his 712 for the kernel.  Sammy, how's that going?

heh...  welll....   I'm getting a better understanding of parts of the
problem, if that makes anyone feel better. :)

I've actually got a kernel together than compiles and links in a fairly
sane manner...  except for the .data segment, which will, eventually, get
badly munged..  It's looking like a linker error revolving around certain
types of relocations that don't quite work right.  further investigation
is still needed, but I've not had time for the last week or so.



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From: Michael Ang <mang@subcarrier.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.3.42 merge - affected files
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Here is the list of files that have been changed both by Linus between
2.3.29 and 2.3.42 and in our local tree:

drivers/block/ll_rw_blk.c
drivers/block/rd.c
drivers/char/Config.in
drivers/char/console.c
drivers/char/Makefile
drivers/char/serial.c
drivers/char/tty_io.c
drivers/Makefile
drivers/net/pcnet32.c
drivers/net/tulip.c
drivers/pci/pci.c
drivers/sound/Config.in
drivers/sound/Makefile
drivers/video/Makefile
fs/buffer.c
fs/exec.c
fs/Makefile
include/linux/init.h
include/linux/mm.h
include/linux/pagemap.h
include/linux/proc_fs.h
include/linux/tty.h
include/linux/udf_fs_sb.h
init/main.c
kernel/acct.c
kernel/exit.c
kernel/resource.c
kernel/sched.c
lib/string.c
Makefile
mm/bootmem.c
mm/filemap.c
mm/Makefile
mm/memory.c
mm/mmap.c
mm/slab.c

All of these files should be checked visually to make sure that the merge
was done properly.  I'll send another mail with some examples of how to
compare different file revisions.

	- Mike.


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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] files still needing manual merging
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Conflicted files which still need to be manually merged using 'cvs up
-jlinus2329 -jlinus2342'

`Makefile'
`drivers/block/rd.c'
`drivers/char/Makefile'
`drivers/char/serial.c'
`drivers/net/tulip.c'
`include/asm-arm/arch-ebsa285/hardware.h'
`include/linux/init.h'`include/linux/mm.h'
`init/main.c'
`kernel/resource.c'
`mm/Makefile'
`mm/bootmem.c'

Files which had conflicts and currently have fixes checked in
drivers/block/ide-dma.c
drivers/video/fm2fb.c
fs/Makefile
fs/buffer.c
include/linux/init.h
include/linux/mm.h
include/linux/ncp_fs.h
mm/filemap.c


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From: Ullas Ponnadi <uponnadi@cup.hp.com>
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Subject: [parisc-linux] Timer Interrupt and Scheduler
Date: Tue, 08 Feb 2000 16:33:15 -0800
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Could someone give me more insight into how the scheduler would get
called
when a timer interrupt happens? I tried tracing through the code
handling the
external interrupt and am at a loss trying to figure out this part.

Thanks,

Ullas Ponnadi



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Michael Ang wrote:
> Conflicted files which still need to be manually merged using 'cvs up
> -jlinus2329 -jlinus2342'

> `drivers/char/serial.c'

Done. It should be ok now.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Xref: news.gmane.org gmane.linux.ports.parisc:6793

On Tue, Feb 08, 2000 at 04:33:06PM -0500, Michael Ang wrote:
> `drivers/block/rd.c'

so far that's the only one in my tree, which is left. To get a kernel
compiled, I've just used the 2.3.42 version of that file (haven't commited
it yet). I can't say whether it works, because I'm now at the point, where 
I get unresolved symbols:

ld: Unsatisfied symbols:
   init_ext2_fs (code)
   up_read (code)
   uts_sem (data)
   get_task_struct (code)
   up_write (code)
   pcibios_enable_device (code)
   down_write (code)
   down_read (code)

I've commited all the stuff, I've fixed to get it compiled. I'm going
to look into the problems with the unresolved symbols tomorrow, if
the issues are still unsolved.

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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Subject: [parisc-linux] cvs tricks
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Updating
update to latest working version, get newly add dirs
  cvs up -Ad
get linus' 2.3.42 version of a file
  cvs up -rlinus2342 somefile
  (need to do "cvs up -A" to get back to latest version)

Diffs
between current version and linus2342
  cvs di -rlinus2342
our changes
  cvs di -r1.1 -rLINUS_2342_PREMERGE
linus' changes from 2.3.29 to 2.3.42
  cvs di -rlinus2329 -rlinus2342
changes we've made since checking in 2.3.42 sources to tip
  cvs di -rLINUS_2342_FIXUP_START -rHEAD

Merging
merge in linus' changes
  cvs up -jrlinus2329 -jlinus2342


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Subject: [parisc-linux] Merge status
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Merging has been painful, as is often the case.  Thanks to everyone for
helping out and being patient.

We still need to manually merge drivers/block/rd.c and fix some problems
with unresolved symbols.  Hopefully we can finish up merging tommorrow.

	- Mike.

On Wed, 9 Feb 2000, Thomas Bogendoerfer wrote:
> > `drivers/block/rd.c'
> 
> so far that's the only one in my tree, which is left. To get a kernel
> compiled, I've just used the 2.3.42 version of that file (haven't commited
> it yet). I can't say whether it works, because I'm now at the point, where 
> I get unresolved symbols:
> 
> ld: Unsatisfied symbols:
>    init_ext2_fs (code)
>    up_read (code)
>    uts_sem (data)
>    get_task_struct (code)
>    up_write (code)
>    pcibios_enable_device (code)
>    down_write (code)
>    down_read (code)


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Thomas Bogendoerfer wrote:
...
> where I get unresolved symbols:
> 
> ld: Unsatisfied symbols:
>    init_ext2_fs (code)
>    up_read (code)
>    uts_sem (data)
>    get_task_struct (code)
>    up_write (code)
>    pcibios_enable_devicepcibios_enable_device (code)
>    down_write (code)
>    down_read (code)

Thomas,
I probably have to add pcibios_enable_device() to arch/parisc/kernel/pci.c.
I can take care of that ASAP.

Card-mode Dino actually wants this kind of a call if it does
what I think it's supposed to do.

thanks!
grant


Grant Grundler
Unix Development Lab
+1.408.447.7253


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Thomas Bogendoerfer wrote:
...
> where I get unresolved symbols:

I didn't even get that far in my build:

make[2]: Entering directory `/linux/grundler/linux-2.3/ipc'
gcc -I/linux/grundler/linux-2.3/include -D__KERNEL__ -I/linux/grundler/linux-2.3/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -D__linux__ -pipe -fno-strength-reduce   -c -o util.o util.c
In file included from util.c:17:
/linux/grundler/linux-2.3/include/linux/msg.h:32: asm/msgbuf.h: No such file or directory
make[2]: *** [util.o] Error 1
make[2]: Leaving directory `/linux/grundler/linux-2.3/ipc'



I'll work on the pcibios_enable_device() code now.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Xref: news.gmane.org gmane.linux.ports.parisc:6798


Hi folks,

The current tree builds and *almost* links.
(except for block/rd.c; used -rlinus2342 version)

ld: Unsatisfied symbols:
   up_read (code)
   uts_sem (data)
   get_task_struct (code)
   up_write (code)
   down_write (code)
   down_read (code)


get_task_struct (code)
	Other arches define get_task_struct() in include/asm/processor.h.
	We probably should too.
	I have only 1/2 a clue what it's supposed to do.

uts_sem (data)
	include/linux/utsname.h: extern struct rw_semaphore uts_sem;
	kernel/ksyms.c: EXPORT_SYMBOL(uts_sem);          /* UTS semaphore */
	kernel/sys.c:  DECLARE_RWSEM(uts_sem);

	Seems like another SOM kluge is needed.
	Or "DECLARE_RWSEM()" needs to be hacked for SOM.
	If someone knows where such "data" kluges are collected,
	please either fix it or let me know so we can keep such kluges
	all in one place.

up_read
up_write
down_read
down_write
	We seem to need them in asm-parisc/semaphore.h.
	I gather this is some form of R/W semaphore.
	Anyone who knows more is encouraged to make it happen.


FYI: I fixed the init_ext2_fs (code) and pcibios_enable_device() problems.

o init_ext2_fs() is declared "static" in fs/ext2/super.c but we have to invoke
  it directly in main.c because module_init(init_ext2_fs) can't work (yet).
  (because we are using SOM - not ELF - binaries.)

o pcibios_enable_device() *was* defined in drivers/pci/setup.c.
  But in 2.3.42,  setup.c no longer exists - split up into three files.
  pcibios_enable_device() moved to the arch specific code.
  (ie arch/parisc/kernel/pci.c)

later,
grant


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Xref: news.gmane.org gmane.linux.ports.parisc:6799

On Tue, Feb 08, 2000 at 05:19:35PM -0800, Grant Grundler wrote:
> I didn't even get that far in my build:
> 
> make[2]: Entering directory `/linux/grundler/linux-2.3/ipc'
> gcc -I/linux/grundler/linux-2.3/include -D__KERNEL__ -I/linux/grundler/linux-2.3/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -D__linux__ -pipe -fno-strength-reduce   -c -o util.o util.c
> In file included from util.c:17:
> /linux/grundler/linux-2.3/include/linux/msg.h:32: asm/msgbuf.h: No such file or directory

that's a new file, I forgot to check it in. I'll do that, when I get home.
A quick fix for this would be to copy asm-sparc/msgbuf.h to asm-parisc.

Thomas.


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Xref: news.gmane.org gmane.linux.ports.parisc:6800

On Tue, Feb 08, 2000 at 10:05:07PM -0800, Grant Grundler wrote:
> uts_sem (data)
> 	include/linux/utsname.h: extern struct rw_semaphore uts_sem;
> 	kernel/ksyms.c: EXPORT_SYMBOL(uts_sem);          /* UTS semaphore */
> 	kernel/sys.c:  DECLARE_RWSEM(uts_sem);
> 
> 	Seems like another SOM kluge is needed.
> 	Or "DECLARE_RWSEM()" needs to be hacked for SOM.
> 	If someone knows where such "data" kluges are collected,
> 	please either fix it or let me know so we can keep such kluges
> 	all in one place.

nono, this isn't linker magic (for once :-).  It's how to declare a
read-write semaphore (C doesn't have constructors, so you do it manually).
I'll do a silly-C version for now and someone can work on an efficient
assembler version of it later.

> up_read
> up_write
> down_read
> down_write
> 	We seem to need them in asm-parisc/semaphore.h.
> 	I gather this is some form of R/W semaphore.
> 	Anyone who knows more is encouraged to make it happen.

exactly.

thanks for fixing the pci stuff.


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Subject: [parisc-linux] CONFIG_SERIAL_GSC
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Xref: news.gmane.org gmane.linux.ports.parisc:6801

Hi folks,
Can someone explain why "#define CONFIG_SERIAL_GSC" is in serial.h?

Users of asm/serial.h are:

grundler <765>find . -name '*.[ch]' | xargs fgrep "asm/serial.h"
./arch/mips/baget/vacserial.c:#include <asm/serial.h>
./drivers/char/ip2main.c:#include <asm/serial.h>
./drivers/char/mac_SCC.h:/* MSch: gone to <asm/serial.h> */
./drivers/char/serial.c:#include <asm/serial.h>
./drivers/char/synclink.c:#include <asm/serial.h>
./drivers/gsc/lasi.c:#include <asm/serial.h>


I have the impression it's going to be difficult to build a "PCI"
serial driver with CONFIG_SERIAL_GSC defined.

thanks,
grant


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From: Philipp Rumpf <prumpf@inwestnet.de>
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Subject: Re: [parisc-linux] CONFIG_SERIAL_GSC
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Xref: news.gmane.org gmane.linux.ports.parisc:6802

> Can someone explain why "#define CONFIG_SERIAL_GSC" is in serial.h?

It shouldn't be.

> Users of asm/serial.h are:
> grundler <765>find . -name '*.[ch]' | xargs fgrep "asm/serial.h"
> ./arch/mips/baget/vacserial.c:#include <asm/serial.h>
> ./drivers/char/ip2main.c:#include <asm/serial.h>
> ./drivers/char/mac_SCC.h:/* MSch: gone to <asm/serial.h> */
> ./drivers/char/synclink.c:#include <asm/serial.h>

> ./drivers/char/serial.c:#include <asm/serial.h>
> ./drivers/gsc/lasi.c:#include <asm/serial.h>

These are the only two that concern us.

> I have the impression it's going to be difficult to build a "PCI"
> serial driver with CONFIG_SERIAL_GSC defined.

Wrong.  The serial driver is designed to handle several busses at the
same time.  That means you can have CONFIG_SERIAL (port based),
CONFIG_SERIAL_GSC, and PCI MMIO based serial all activated at the same
time and one serial port of each variation and everything should work.

All you need to do is call register_serial with a struct serial_struct *req
so req->io_type == SERIAL_IO_MEM and everything should work fine.

Of course newer boxes (c3k, j5k, c3600, j5600) don't have GSC at all, so
you'd like not do define CONFIG_GSC/CONFIG_SERIAL_GSC for those.  (Those
boxes seem to still have an HP-proprietary bus though, but I don't know
anything about that).

	Philipp Rumpf


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Subject: [parisc-linux] Merge complete. Go crazy.
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The merge with 2.3.42 is complete and the tree is now open for all
checkins.

The merge went relatively smoothly thanks to everyone's cooperation and
coordination.  It takes teamwork to escape merge hell quickly :)

The proposed plan for continuing to track Linus' kernel is to merge in
Linus' changes about once a month.  The criteria to determine the point
at which we merge will be if there are changes we want to pick up and if
Linus' kernel is relatively stable.  The merge we just finished was a
big one (2.3.29 to 2.3.42) -- if we merge more often the patches we have
to apply to our tree will be smaller.

We will want to sync up with 2.4 as soon as it is released so we can
generate clean diffs for the features we want to propagate back to Linus
for 2.5.

	- Mike.


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From: Dunn RobertE Contr ESC Det 5 /NDSI <Robert.Dunn@CISF.AF.MIL>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Metrics Gathering and Quality Measurements
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Hi all,

	I have been following this list server for several weeks now.  I
have some questions.  I am in a Software Quality Assurance course in school.
We have a paper to prepare regarding SQA practices on a real project.  I
would like to ask a few questions regarding methods and methodologies in use
on PA-RISC linux port.

	My primary question is, are there any metrics being gathered on the
problems that I see reported on the list server?  Are the problems that are
reported being categorized and counted?  Is there any identification of when
the problem was introduced, when it was identified, and when it was
corrected?

	Are there any other concepts for porting linux to any other
platforms?

	Thanks in advance for any information you can provide.


Robert E. Dunn Jr.
Team ND
SND C2 SPO/NDSN
SenCom
Corporation
Database Manager
Phone: (719) 556-9448	DSN: 834-9448		Fax: 556-4417


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To: Dunn RobertE Contr ESC Det 5 /NDSI <Robert.Dunn@CISF.AF.MIL>
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Currently the number of active developers is fairly small, so most bug
tracking is done by the developers themselves.  This is working
reasonably right now, since most bugs get fixed quickly and the number
of users of the code is small.

Once we get far enough that userspace applications work, the number of
developers and end users will likely grow quickly.  At that time it will
be important to scale our bug tracking as well.  Bugzilla
(http://bugzilla.mozilla.org/) would be a good bug tracking tool for us
to use.

Bugzilla is pretty slick.  You can report bugs, track progress, set
target fix dates, mark duplicates, etc.  All the data is stored in a
database so you can build interesting queries (such as listing how many
bugs each engineer has assigned to be finished before the next milestone
date).  Mozilla.org/Netscape wrote Bugzilla and they use it for all
their bug tracking -- there are a lot of good techniques we can steal,
er borrow, from them.

	- Mike.

Dunn RobertE Contr ESC Det 5 /NDSI wrote:
> 
>         My primary question is, are there any metrics being gathered on the
> problems that I see reported on the list server?  Are the problems that are
> reported being categorized and counted?  Is there any identification of when
> the problem was introduced, when it was identified, and when it was
> corrected?


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Metrics Gathering and Quality Measurements
Date: Thu, 10 Feb 2000 18:37:03 -0500
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Dunn RobertE Contr ESC Det 5 /NDSI wrote:
>         My primary question is, are there any metrics being gathered on the
> problems that I see reported on the list server?  Are the problems that are
> reported being categorized and counted?  Is there any identification of when
> the problem was introduced, when it was identified, and when it was
> corrected?

Right now, we have no such data, but I'd be interested in seeing your
analysis.  Several of us have worked on Linux on different architectures
though.

- Alex

-- 
Alex deVries, Director of Professional Services, The Puffins at
Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: willy@thepuffingroup.com
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Subject: [parisc-linux] some stats
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Someone may find this interesting.  I just did a
`diff -ur linux-2.3.42 cvs/linux-2.3' to find out how much of the mainline
kernel tree we've changed.  After judicious trimming of changes we
haven't actually made (CVS artifacts, etc), the diff is 5367 lines long.
There are basically five categories of changes:

 * Extra debug code that we won't merge in with Linus
 * The page colouring code.
 * Workarounds for compiling as SOM, not ELF.
 * Build system changes.
 * Driver changes.  Some for IO coherency, some for `and parisc too'.

The page colouring code is probably the only thing which will prevent us
merging into Linux 2.4.x.  Page colouring seems to be on the agenda for
Linux 2.5, and nothing stops us from producing our own kernel `based on
Linux 2.4', just like Red Hat.  Of course, we ought to get a little more
developed before we try to merge :-)


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From: Matthew Estes <matt@phoenix.maintree.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] About supported machines.
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        I have recently acquired an Apollo 720 with HP-UX 9.03, I was
wondering if this machine is in the class of machines that you are either
supporting or plan to support. I looked in the hardware database and
couldn't find anything about 720's, so I thought I would ask the mailing
list. It is no real use to me as is, so I would be willing to do testing on
it. Thanks.

                                        Matt Estes


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Subject: Re: [parisc-linux] About supported machines.
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On Thu, 10 Feb 2000, Matthew Estes wrote:

>         I have recently acquired an Apollo 720 with HP-UX 9.03, I was
> wondering if this machine is in the class of machines that you are either
> supporting or plan to support. I looked in the hardware database and
> couldn't find anything about 720's, so I thought I would ask the mailing
> list. It is no real use to me as is, so I would be willing to do testing on
> it. Thanks.

Since we don't currently have a 720 in the hardware database, can you
please add your machine to the database.  If you have any problems,
please let me know.

Thanks.

-- 
David Kennedy, Senior Linux Consultant, Linuxcare, Inc.
613.562.9594 tel, 613.562.9304 fax
dkennedy@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Dunn RobertE Contr ESC Det 5 /NDSI <Robert.Dunn@CISF.AF.MIL>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Metrics Gathering and Quality Measurements
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	Right now, we have no such data, but I'd be interested in seeing
your
	analysis.  Several of us have worked on Linux on different
architectures
	though.

Alex,

	What file format would you like.  Linux people probably want Corel.
I have Word Perfect.  The school will want satan's Word 97 format.  I am
unsure about posting binary files to the list server.  I can e-mail it
directly to you.  Does anybody else want a copy?  It will be several weeks
before I will have it together.  I can tell you, however, based on what I
have learned thus far, there will be many negatives.  I will attempt to
identify any of the positive points that I can (for example: this list
server and bugzilla - thanks Mike -).  Any information the team can provide
will be most beneficial.

	Remember, my project deals with the quantification of quality.  This
includes the ability of the product team to quantify the quality of the
product.  My analysis will not address the quality of the product, it will
address the quality of the processes.  

	Some other questions:

	Has there been any risk analysis done?  I can see evidence of, at
least some informal, risk analysis.  The discussions about merging Linus'
product with parisc attempts to identify some of the risks that may be
encountered and some of the steps that may be taken to mitigate those risks.

	Have there been any prioritization of tasks?  Has the team
identified tasks that will take longer or have greater risk?  If they have,
have they also identified the earliest possible starting time for these
tasks?

	Is there a schedule?  It seems as though the project is just moving
in a forward direction with the goal of finishing when it can be finished?
I don't think I have seen any "future" milestones identified, at least, not
with a date associated to them.  There is plenty about accomplished
milestones.

	Are there budget issues or concerns?  I recognize that some of them
may not be discussed openly.  If any of that type of information is allowed,
then I will be happy to hear it.  I understand that Hewlett Packard in Fort
Collins is writing the checks for this project.

	What role is Linuxcare taking in the project now?  Have there been
any updates to the Puffingroup website in the last couple of weeks?

	Ok, I have rambled on enough for now.  I am looking forward to
answers to these questions.  I shall prepare my next list of questions.

	Again, thanks in advance.

Robert


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From: "John Curry" <jcurry@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Some PA-RISC 2.0 Gotchas
Date: Fri, 11 Feb 2000 09:10:54 -0800
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Hello all,
            we have been looking into the kernel code for porting to the 2.0
Architecture. We have
stumbled upon a few gothas:

- In 2.0, function pointers are not addresses to functions, but are
addresses to data strcutures
called "function descriptors". So, if assembly code gets passed a pointer to
a function, it will have
to remember which slot in the "function descriptor" the actual function
pointer resides.

- There are some places in the kernel where the implicit assumption that
longs == ints will break!
For example, the parisc_set_bit  function is used in several places to
operate on bitmaps of type long.
Obviously, this function (and the other related functions) has to converted
to operate on 64-bit quantities.
But, in the free_area_struc type, the map variable is declared as an integer
ptr. Depending on the size of
the bitmap, this will cause the parisc_set_bit  to operate incorrectly. We
solved this problem by making
the map variable a unsigned long pointer.

- The 32-bit assembly LDIL, LDO trick of getting the address of some label
(or address) will not work the way you want.
In the 64-bit architeture, you will have to use MFIA in conjunction with
loading the difference from the address
you want, to where you are.


Hope these are of some use.

J.C.


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From: Stan Sieler <sieler@allegro.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Some PA-RISC 2.0 Gotchas
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Re: 

> - In 2.0, function pointers are not addresses to functions, but are
> addresses to data strcutures
> called "function descriptors". So, if assembly code gets passed a pointer to
> a function, it will have
> to remember which slot in the "function descriptor" the actual function
> pointer resides.

They're pointers to data on HP-UX 10.20 as well.
 
> - There are some places in the kernel where the implicit assumption that
> longs == ints will break!

:)

My pet peeve...

Code should almost *never* use "short", "int", or "long" ... 
but instead, "int32" and "int64" (or whatever) should be used.  

I've lost track of the number of bugs I've seen caused by this.  
(Ok, one exception...if you're calling a system function documented as 
using "int" or "long", then you can declare variables of those type 
... but be very careful using them, and file a bug report with the vendor :)

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html          www.allegro.com/sieler


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From: Philipp Rumpf <prumpf@inwestnet.de>
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Subject: Re: [parisc-linux] Some PA-RISC 2.0 Gotchas
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> But, in the free_area_struc type, the map variable is declared as an integer
> ptr. Depending on the size of
> the bitmap, this will cause the parisc_set_bit  to operate incorrectly. We
> solved this problem by making
> the map variable a unsigned long pointer.

it's very unlikely map isn't a multiple of 8 bytes, but I agree this type
should be changed.

> Hope these are of some use.

Thanks, I'm sure they will.

	Philipp


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From: Christopher Neufeld <Christopher.Neufeld@dynacan.org>
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Subject: Re: [parisc-linux] Some PA-RISC 2.0 Gotchas
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On Feb 11,  9:52am, Stan Sieler wrote:
> 
>> - There are some places in the kernel where the implicit assumption that
>> longs == ints will break!
>
>My pet peeve...
>
>Code should almost *never* use "short", "int", or "long" ... 
>but instead, "int32" and "int64" (or whatever) should be used.  
>
   The types are "int32_t", "int64_t", etc. These are codified in the C99
standard which was finally ratified late last year. The previous
standard, C89, did not define these types, and so portable code could not
use them, short of a person rewriting the typedefs in the program's
header files for each new architecture/compiler.

   There are many circumstances where one wants to use those particular
K&R types. "int", for example, is intended to be implemented in the
machine's natural word size. While not required by the standard, the
recommendation allows you to expect that code using ints will probably be
at least as quick as code using other integer types (neglecting "real
world" impacts like memory bandwidth and cache size). If you look in a
C99-compliant <stdint.h> header file you'll see that there are types like
"int_fast16_t" which are mapped not to an integer of size 16, but to an
integer of the natural word size of the machine (on x86 that means that
int_fast16_t and int_fast32_t are both typedef-ed to int, and on a 64 bit
architecture int_fast16_t is typedef-ed to a 64 bit integer).

   In any case, I agree that the assumption that longs and ints can be
mutually cast without loss of information is a nasty one which breaks
often. Another bad one is the idea that an integer can always hold a
pointer. I've heard that these are common blights in GNU code, though
I've never tried to verify that.

   Oh, in case people are interested, and don't know, the document which
is going to become the ISO C99 standard, n869, is available at:

http://anubis.dkuug.dk/JTC1/SC22/WG14/www/docs/n869/

good reading, a bit low on plot development.


-- 
 Christopher Neufeld		   Christopher.Neufeld@dynacan.org
 Home page:  http://caliban.physics.utoronto.ca/neufeld/
 "Don't edit reality for the sake of simplicity"


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From: Ullas Ponnadi <uponnadi@cup.hp.com>
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Subject: [parisc-linux] Timer Interrupt and Scheduler
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I would like to expand my observations a little bit more with regards to
the timer
interrupt and the scheduler.

Looking at the linux documentation available and the code for the x86
and
alpha architectures, at the very end of a return from the timer
interrupt,
a call to the scheduler should be made, if necessary. I see this call in
the
ret_from_intr label in entry.S file on the x86 architecture and
ret_from_sys_call
in entry.S on the alpha architecture. The parisc interrupt handler does
not seem to
be doing any such thing. ( Looking at the linux-2_3_29-20000208_tar
archive ).

Could someone help me understand how the scheduler would get called when

a timer interrupt occurs?

Thanks,

Ullas


Ullas Ponnadi wrote:

> Could someone give me more insight into how the scheduler would get
> called
> when a timer interrupt happens? I tried tracing through the code
> handling the
> external interrupt and am at a loss trying to figure out this part.
>
> Thanks,
>
> Ullas Ponnadi





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From: "Ross J. Reedstrom" <reedstrm@wallace.ece.rice.edu>
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Xref: news.gmane.org gmane.linux.ports.parisc:6816

On Fri, Feb 11, 2000 at 11:13:02AM -0500, dkennedy@linuxcare.com wrote:
> On Thu, 10 Feb 2000, Matthew Estes wrote:
> 
> >         I have recently acquired an Apollo 720 with HP-UX 9.03, I was
> > wondering if this machine is in the class of machines that you are either
> > supporting or plan to support. I looked in the hardware database and
> > couldn't find anything about 720's, so I thought I would ask the mailing
> > list. It is no real use to me as is, so I would be willing to do testing on
> > it. Thanks.
> 
> Since we don't currently have a 720 in the hardware database, can you
> please add your machine to the database.  If you have any problems,
> please let me know.


That'll be a problem, since step 5 of adding a machine says:


5. Run the "ioscan -F" utility on the PA-RISC machine with the command
   /usr/sbin/ioscan -F. The results may take a few moments to appear. Copy
   and paste the results (which will be a fair amount of data) into the
   "IOScan Output" field below. The IOScan output must be from HP-UX
   version 10 or later.

And Matthew has 9.03. I have the same problem with a 730 I've got: I'd add it to
the db, but it's not at 10 yet. (Purely a time issue: I've got the upgrade CDs,
but apparently I can't do a clean wipe/install since my 730 won't boot from
the CD)

Ross

-- 
Ross J. Reedstrom, Ph.D., <reedstrm@rice.edu> 
NSBRI Research Scientist/Programmer
Computer and Information Technology Institute
Rice University, 6100 S. Main St.,  Houston, TX 77005


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Subject: [parisc-linux] Building the PA-RISC 2.0 kernel with the GCC tool chain
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John Curry and myself have been looking at the PA-RISC 2.0 Port. Here are
some things that I have tried using the latest GCC tool chain.

- I have been able to build an ELF-64 binary using the tool chain. The tools
that
  I have used are:
        - gcc version 2.9-hppa-991112
        - GNU ld version 2.9-hppa-991112 (with BFD 2.9-hppa-991112)
        - GNU Make version 3.77

- I have used a bare bone kernel for the build.

- Most of the assembly files are stubbed out since the assembler directives and
in
  some cases, assembly tricks do not work on the 64 bit architecture.

- The purpose of the build was to test the tool chain and deal with any 64 bit
issues,
   so no tests have been done:-).

Hope this information is useful for anyone trying to work on a PA-RISC 2.0
Port.

Ullas



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Dunn RobertE Contr ESC Det 5 /NDSI wrote:
>         What file format would you like.  Linux people probably want Corel.
> I have Word Perfect.  The school will want satan's Word 97 format.  I am
> unsure about posting binary files to the list server.  I can e-mail it
> directly to you.  Does anybody else want a copy?  It will be several weeks
> before I will have it together.  I can tell you, however, based on what I
> have learned thus far, there will be many negatives.  I will attempt to
> identify any of the positive points that I can (for example: this list
> server and bugzilla - thanks Mike -).  Any information the team can provide
> will be most beneficial.

I'd suggest text and postscript.  Send it to me, and if it's on topic
we'll host it on the PA-RISC Linux web pages.

>         Has there been any risk analysis done?  I can see evidence of, at
> least some informal, risk analysis.  The discussions about merging Linus'
> product with parisc attempts to identify some of the risks that may be
> encountered and some of the steps that may be taken to mitigate those risks.

There's certainly risk analysis that gets done on a project-to-project
basis, but it's a very informal practice.

>         Have there been any prioritization of tasks?  Has the team
> identified tasks that will take longer or have greater risk?  If they have,
> have they also identified the earliest possible starting time for these
> tasks?

Ish.  A lot of these get talked about off line.

>         Is there a schedule?  It seems as though the project is just moving
> in a forward direction with the goal of finishing when it can be finished?

That's pretty much it.  It's hard to guarantee any dates when the bulk
of development is done on non-paid time.

>         What role is Linuxcare taking in the project now?  Have there been
> any updates to the Puffingroup website in the last couple of weeks?

The Puffins at Linuxcare has a contract with HP to contribute to some
development. 

There will be updates very very soon.  We've been concentrating on
development in recent weeks.

- Alex
-- 
Alex deVries, Director of Professional Services, The Puffins at
Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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An interesting project someone might want to take on:

I waste a fair bit of time copying executables from hpux to linux,
mounting a ramdisk over loopback, putting the executable into the
disk, unmounting it, copying the ramdisk back to hpux, making a new
kernel and then booting it.

If someone has some spare time, they might want to investigate using
libext2fs to build a ramdisk under HPUX.  Red Hat's mkinitrd doesn't
work like this, so can't be usefully adapted.  libext2fs is available
as part of e2fsprogs, available from most ftp sites world-wide :-)


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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: [parisc-linux] MAKE initrds FAST
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On Sat, Feb 12, 2000 at 10:51:02PM -0500, willy@thepuffingroup.com wrote:
> 
> An interesting project someone might want to take on:

it's sure an interesting project, but there already is a solution for your 
problem in the current cvs. It's called NFS root:-)

Right now sash is running on my A180 started from a NFS mounted root.

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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Subject: [parisc-linux] State Of The Port [2000/02/13]
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State of the Port

It's been a while since we put one of these out, so here goes:

 * Grant has contributed support for the C3000/J5000 and similar machines
   which have an I/O SAPIC.

 * A cast of thousands hacked on the Tulip (onboard DINO/IOSAPIC based
   machines) driver.  Eventually, Thomas persuaded it to work.

 * Sammy & Helge made LASI ethernet work.

 * Thomas massaged some C IP checksum code until it worked.  NFS now works!

 * Our kernel tree is currently based on Linux 2.3.42.  Michael
   Ang shepherded us through this merge with contributions from
   (alphabetically), Paul, Thomas, Grant, Philipp and Matthew.

   Naturally, Linus put out 2.3.43 within a few hours of the merge
   being completed.

 * Grant has also got some signs of life from the Symbios 896 

 * Martin fixed a console problem that made sash crash when using the
   serial console.

 * John Marvin has been working on Linux syscalls.

 * Sammy has a 32-bit ELF kernel booted [but hasn't committed the code
   yet, to give us enough time to get an ELF toolchain to everyone].

So what does it currently work on?

 * C3000/J5000 (no serial input yet)
 * A180
 * C360
 * 712

These are the machines developers are mainly using right now.
Other machines simply aren't being tested and may work anyway.

The future:

We'll try to stay more current with Linus' codebase.  On the other hand,
we don't want to be merging all the time.  The compromise we've decided to
try is to merge approximately once a month, depending on exactly what's
been changed.  2.3.43 breaks half the network drivers, so we don't want
to merge yet.  On the other hand, it does have the new `coherent DMA'
interface, which we will want to take advantage of.

We need to start thinking about moving the kernel to 64-bit ELF.
There are some places where we've assumed sizeof(long) == sizeof(int),
and some of the assembler needs changing.

We need to start working on making the system self-hosting.  That means
getting a C compiler running, porting glibc, etc.

Apologies to anyone or anything I missed.


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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: [parisc-linux] Linux syscall ABI
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Xref: news.gmane.org gmane.linux.ports.parisc:6823


I've been talking with willy about the Linux syscall ABI, and now I'd
like to get some input from the rest of you regarding how it should
be handled.

As most of you are aware, HP-UX uses some parisc specific features,
namely the gate instruction used on a page mapped with privilege
promotion access rights (i.e. a gateway page), to implement HP-UX
syscalls. HP-UX puts this gateway page at 0xC0000000 in the users
address space (Which on HP-UX is in a shared quadrant, so there
is only one entry is needed in the tlb for all user processes).

Currently I've implemented a Linux syscall gateway page at 0xC0010000,
but since we don't have anything to be binary compatible with for
parisc linux applications, we can do things differently. I'd like
to throw out a few proposals and see what you all think. Feel free
to suggest other ideas.

Proposal #1:

Don't use a gateway page. Use a more "traditional" trapping instruction,
and handle syscalls in the fault path. We could use a subset of the
available break instructions, or we could "dedicate" a trap (the break
instruction trap handler will have to be shared with debugger support),
like the privileged register trap, or any of a few other traps that
a user program should not run into in the normal course of execution.

The disadvantage with this method is that I don't believe it can be made
to perform as well.  Even if we dedicate a particular trap for handling
syscalls, we still need to do at least 4 mtctl instructions (which on many
parisc processors take 2 states each, and don't bundle for multiple issue)
to reload the space queue and offset queue, plus and rfi instruction, in
order to return to virtual mode in the kernel.  This method also will
defeat any advantages from branch prediction.

All of the other proposals below deal with using a gateway page. I
personally believe that using a gateway page is the better choice.
However, on parisc linux we are capable of supporting a ~4 Gb linear
address space for user processes. I don't think locating the gateway
page at the ~3 Gb mark is a good idea, since it prevents heap expansion
beyond that point (this is a problem I am currently trying to work around
on HP-UX for customers who need this kind of large address space and
are not yet willing to port to 64 bit). I can think of no good reason
to put the gateway page in the middle of the user address space somewhere.
The remaining proposals have to do with where the Linux gateway page
should be located.

I should mention here that we do not currently plan on having any globally
shared quadrants in the user address space for parisc linux. Therefore
whether or not an HP-UX gateway page is mapped into the address space
can be determined on a per process basis. I can see no reason to map
a HP-UX gateway page into the address space for native parisc linux
processes (as opposed to HP-UX processes running on parisc linux).

Proposal #2:

Map the Linux syscall gateway page at the top end of the user address space.
What this top end address would be has yet to be determined. Depending
on how we support mapping I/O devices into the user address space, we
may want to reserve the 0xF0000000-0xFFFFFFFF range for IO (keeping the
device mapped at its equivalent address in the kernel address space).
This may be also be necessary for routines like memcpy (so it can easily
determine if the address is an IO mapped address), which if used on IO
addresses have to do things differently, assuming that memcpy is optimized
for performance.


Proposal #3:

Map the Linux syscall gateway page at near the bottom end of the users
address space.  We could define the default text start for parisc linux
processes such that it leaves room for a gateway page below it.

Proposal #4:

Map the Linux syscall gateway page at the very bottom end of the users
address space, i.e. 0x00000000! Note that gateway pages are execute only,
so processes would still fault on a data null pointer dereference. We
could put some trapping code at the beginning of the gateway page to
catch anyone branching through a null function pointer.

One disadvantage of this proposal is that we could not support the
System V personality null pointer dereference behaviour. This maps
a page of zero's at location 0 so that null pointer dereferences will
return 0 for buggy software. Do we really still need to maintain this
ancient hack?

A slight advantage of this proposal is that it eliminates one instruction
(yes, one whole instruction!) from the syscall path. The general syscall
stub for a user space gateway page looks something like this:

	ldil L%<gateway address>,%r1
	ble  R%<gateway address>(%sr?,%r1)
	ldi <syscall #>,%r20

With the gateway page at 0 we don't need the ldil and can do just:

	ble <gateway page offset>(%sr4,%r0)
	ldi <syscall #>,%r20

Proposal #5:

Locate the gateway page in the kernel address space (space 0).  This will
be a more efficient with respect to tlb usage.  It will add an instruction
to the syscall stub (perhaps an instruction or two can be reclaimed
on the gateway page in return, see below).

It is more efficient re: tlb usage for two reasons.  The first reason is
that since there is only one kernel address space, we only need one entry
in the tlb to map the page.  For user space gateway pages every process
will have its own mapping (aliased to the same page).  I should mention
here that every process will have its own unique space value, and we will
not need to flush the tlb on context switches. The second reason is
that we could locate the syscall return path on the gateway page, so
the syscall path will not need to run through another address range
(the syscall return code) that it could miss on. The kernel system
calls are written in C, and therefore cannot do a long branch back onto
the gateway page, which would be necessary if the gateway page is not
located in the kernel address space. If the gateway page is located in
the kernel address space the system calls can return there for the
syscall return path (check pending signals, rescheds, etc.) before
doing a long branch back to user space. We may also be able to save
a few instructions in the syscall path if the return point is the
natural return point for where the branch to the syscall was taken.

The disadvantage is that we would have to load a space register in
the syscall stub. The sequence would be something like this:

	mtsp %r0,%sr0
	ldil L%<gateway address>,%r1
	ble  R%<gateway address>(%sr0,%r1)
	ldi <syscall #>,%r20

If address 0 is available in the kernel address space (and there are
a variety of reasons why it might not be available long term) the
sequence could be shortened to:

	mtsp %r0,%sr0
	ble  <gateway offset>(%sr0,%r0)
	ldi <syscall #>,%r20

Proposal #6:

Locate the gateway page in a space dedicated purely for the gateway
page. This has the advantage of having one global mapping, similar
to proposal #5 above. It also is completely flexible in terms of
where in the address space it could be located, i.e. 0 would be
available. It has the disadvantages (compared to #5) of not being
able to locate the syscall return path on the gateway page. Also
it would take yet another instruction to load a non zero space value
into a space register, e.g: (assuming gateway at address 0)

    ldi <gateway space value>,%r1
    mtsp    %r1,%sr0
    ble  <gateway offset>(%sr0,%r0)
    ldi <syscall #>,%r20

I only mention this possibility to be complete. I personally do not
think it has much going for it.


I haven't proposed more flexible solutions, including what HP-UX
does for 64 bit syscalls, i.e. they pass a pointer to an array of
syscall pointers into the application at startup. This means that
you have to load them from memory.  My opinion is that we don't
need to be that flexible,  but I'm sure some of you will disagree.

So, what do you all think?

John Marvin
jsm@fc.hp.com


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From: Philipp Rumpf <prumpf@inwestnet.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Linux syscall ABI
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> Proposal #1:
> 
> Don't use a gateway page. Use a more "traditional" trapping instruction,

I agree this probably has very bad performance, so we shouldn't do it.

> Proposal #2:
> 
> Map the Linux syscall gateway page at the top end of the user address space.
> What this top end address would be has yet to be determined. Depending
> on how we support mapping I/O devices into the user address space, we
> may want to reserve the 0xF0000000-0xFFFFFFFF range for IO (keeping the
> device mapped at its equivalent address in the kernel address space).

I don't think reserving 0xFXXX XXXX for I/O in userspace is a good idea.
There is no problem with doing userspace I/O using the normal mmap /dev/mem
approach.  (Except maybe HPUX compatibility, which doesn't concern linux-
only processes).

Not using the last page (i.e. 0xffff f000 - 0xffff ffff) sounds like a good
idea to me though as it avoids small negative numbers cast into pointers
getting successfully dereferenced.

> This may be also be necessary for routines like memcpy (so it can easily
> determine if the address is an IO mapped address), which if used on IO

kernel memcpy() shouldn't ever be called with either an IO or a user address

> One disadvantage of this proposal is that we could not support the
> System V personality null pointer dereference behaviour. This maps
> a page of zero's at location 0 so that null pointer dereferences will
> return 0 for buggy software. Do we really still need to maintain this
> ancient hack?

No, we don't.  We're talking about PER_LINUX binaries here, and those
never expected to be able to dereference NULL pointers.

> The disadvantage is that we would have to load a space register in
> the syscall stub. The sequence would be something like this:
> 
> 	mtsp %r0,%sr0
> 	ldil L%<gateway address>,%r1
> 	ble  R%<gateway address>(%sr0,%r1)
> 	ldi <syscall #>,%r20
> 
> If address 0 is available in the kernel address space (and there are

Of course every page in the region 0xfffc0000 - 0x3f fffc (it's a 17-bit
signed immediate shifted left 2 bits, so that should be -2^18 - 2^18-4)
can be used, so we just need a page within the first 256 KB.
 
> a variety of reasons why it might not be available long term) the
> sequence could be shortened to:
> 
> 	mtsp %r0,%sr0
> 	ble  <gateway offset>(%sr0,%r0)
> 	ldi <syscall #>,%r20

In fact, what's wrong with shortening _this_ sequence to

	ble <gateway offset)(%sr2, %r0)
	ldi <syscall #>,%r20

and teaching userspace to not modify sr2 ?

> I haven't proposed more flexible solutions, including what HP-UX
> does for 64 bit syscalls, i.e. they pass a pointer to an array of
> syscall pointers into the application at startup. This means that
> you have to load them from memory.  My opinion is that we don't
> need to be that flexible,  but I'm sure some of you will disagree.

If you disagree, there's still 252 / 248 KB left for you to play in.

	Philipp


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] State Of The Port [2000/02/13]
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--0-424238335-950547380=:27520
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--- willy@thepuffingroup.com wrote:
> 
> State of the Port
...
> So what does it currently work on?
> 
>  * C3000/J5000 (no serial input yet)
>  * A180
>  * C360
>  * 712
>
... 
Compiling and booting the latest (20000213) cvs
version on my 715/33 is partly successful. It ends
with the RAMDISK loaded message because after this the
kernel is switching to a serial console which does not
(yet) exist.

Changing CONFIG_VT=y, CONFIG_VT_CONSOLE=y,
CONFIG_SERIAL_CONSOLE=n and CONFIG_IODC_CONSOLE=y 
leads to a lot of undefined symbols:
ld: Unsatisfied symbols:
   pckbd_getkeycode (code)
   pckbd_setkeycode (code)
   pckbd_leds (code)
   keymap_count (data)
   plain_map (data)
   accent_table (data)
   func_buf (data)
   func_table (data)
   accent_table_size (data)
   funcbufleft (data)
   pckbd_unexpected_up (code)
   funcbufsize (data)
   funcbufptr (data)
   key_maps (data)
It seems that CONFIG_GSC_PS2 is needed to include
these routines (although the 715/33 does not have a
GSC or PS2). But after defining CONFIG_GSC_PS2=y the
kernel boot ends with the attempt to kill the init
task. And the are two "kernel BUG" messages again,
this time in block_dev.c:411!

So everything has improved compared to the state
before the 2.3.42 merge, where even a defconfig-kernel
ended with lots of kernel BUG messages on my 715/33.

I have attached the complete boot log of this test.
Has anyone an idea what's going wrong?

Also: the HIL-driver is still not working. If I
include it I get lots of kernel BUG messages in
pagetable_init.

Ulrich
__________________________________________________
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--0-424238335-950547380=:27520
Content-Type: text/plain; name="last_boot.txt"
Content-Description: last_boot.txt
Content-Disposition: inline; filename="last_boot.txt"

PARISC/Linux Bootstrap Version 0.6 (non-interactive)
By Helge Deller & Jason Eckhardt
Built Mon Feb 14 15:14:57 MET 2000 by root@be5359

Official memory starts at 00006400
Reading parameters...done.

Loading PA-RISC/Linux Kernel...
SOM-Kernel:
aux_header_location: 00000080
som       : 01000080
exec_dfile: 00156000
exec_dsize: 000FB000
exec_dmem : C0200000
exec_tfile: 00056000
exec_tsize: 000FF008
exec_tmem : C0100000
exec_bsize: 3FD05030
exec_entry: C0100000
Code at 0x00100000, size=0x000FF008
Data at 0x00200000, size=0x000FB000
BSS  at 0x002FB000.
exec_entry: C0100000

Transferring control to kernel. (At entry point 0x00100000)
The Kernel has started...
Free memory starts at: 0xc035bde0
PALO command line: '/stand/vmlinux HOME=/ TERM=LINUX console=tty'
FP CCR was 0x0, will be set to 0xc0
model   00003110 00000481 00000000 00000000 78294d38 ffffffff 00000004 0000000a
0000000a
vers    00000013
CPUID vers 0 rev 0
Model: Scorpio Jr.(715/33) with 48 MB RAM (Using 48 MB).
CPU(s): 1 x PA7100LC at 33.333500 MHz
Searching for devices in PDC firmware...  an older box...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0, 0x77, 0x0, 0x0
2. Scorpio Jr. Core BA (11) at 0xf082f000, versions 0xb, 0x0, 0x70, 0x0, 0x0
3. Scorpio Jr. Core SCSI (10) at 0xf0825000, versions 0xb, 0x0, 0x71, 0x0, 0x0
4. Scorpio Jr. Core LAN (802.3) (10) at 0xf0826000, versions 0xb, 0x0, 0x72, 0x0, 0x0
5. Scorpio Jr. Core HIL (10) at 0xf0821000, versions 0xb, 0x0, 0x73, 0x0, 0x0
6. Scorpio Jr. Core RS-232 (10) at 0xf0823000, versions 0xb, 0x0, 0x75, 0x0, 0x0
7. Scorpio Jr. Core RS-232 (10) at 0xf0822000, versions 0xb, 0x0, 0x75, 0x0, 0x0
8. Scorpio Jr. Core Centronics (10) at 0xf0824000, versions 0xb, 0x0, 0x74, 0x0, 0x0
9. Scorpio Jr. Audio (10) at 0xf1000000, versions 0xb, 0x0, 0x7b, 0x0, 0x0
10. Scorpio Jr.(715/33) (0) at 0xfffbe000, versions 0x311, 0x0, 0x4, 0x0, 0x81
11. Scorpio Jr. (1) at 0xfffbf000, versions 0x1b, 0x0, 0x9, 0x0, 0x0
That's a total of 11 devices.
Linux version 2.3.42 (root@be5359) (gcc version 2.8.1) #6 Mon Feb 14 17:11:40 ME
T 2000
init_bootmem 860 12288
init_bootmem complete
free_bootmem 0035c3e0 02ca3c20
d_conf 51402000
initrd: c0208000-c02dc800
pagetable_init
set_pte c1100000 002e5309
miscoloured (c013c554)
set_pte c1100004 002de309
miscoloured (c013c56c)
On node 0 totalpages: 00003000
zone(0): 6144 pages.
zone(1): 6144 pages.
zone(2): 0 pages.
trap_init
iodc_con_init
Console: switching to IODC console
#Console: mono IODC console 80x34
The Kernel has started...Free memory starts at: 0xc035bde0PALO command line: '/s
tand/vmlinux HOME=/ TERM=LINUX console=tty'FP CCR was 0x0, will be set to 0xc0mo
del#00003110 00000481 00000000 00000000 78294d38 ffffffff 00000004 0000000a 0000
000avers#00000013CPUID vers 0 rev 0Model: Scorpio Jr.(715/33) with 48 MB RAM (Us
ing 48 MB).CPU(s): 1 x PA7100LC at 33.333500 MHzSearching for devices in PDC fir
mware...  an older box...Found devices:1. Stinger Optional Graphics (10) at 0xf4
000000, versions 0x6, 0x0, 0x77, 0x0, 0x02. Scorpio Jr. Core BA (11) at 0xf082f0
00, versions 0xb, 0x0, 0x70, 0x0, 0x03. Scorpio Jr. Core SCSI (10) at 0xf0825000
, versions 0xb, 0x0, 0x71, 0x0, 0x04. Scorpio Jr. Core LAN (802.3) (10) at 0xf08
26000, versions 0xb, 0x0, 0x72, 0x0, 0x05. Scorpio Jr. Core HIL (10) at 0xf08210
00, versions 0xb, 0x0, 0x73, 0x0, 0x06. Scorpio Jr. Core RS-232 (10) at 0xf08230
00, versions 0xb, 0x0, 0x75, 0x0, 0x07. Scorpio Jr. Core RS-232 (10) at 0xf08220
00, versions 0xb, 0x0, 0x75, 0x0, 0x08. Scorpio Jr. Core Centronics (10) at 0xf0
824000, versions 0xb, 0x0, 0x74, 0x0, 0x09. Scorpio Jr. Audio (10) at 0xf1000000
, versions 0xb, 0x0, 0x7b, 0x0, 0x010. Scorpio Jr.(715/33) (0) at 0xfffbe000, ve
rsions 0x311, 0x0, 0x4, 0x0, 0x8111. Scorpio Jr. (1) at 0xfffbf000, versions 0x1
b, 0x0, 0x9, 0x0, 0x0That's a total of 11 devices.Linux version 2.3.42 (root@be5
359) (gcc version 2.8.1) #6 Mon Feb 14 17:11:40 MET 2000init_bootmem 860 12288in
it_bootmem completefree_bootmem 0035c3e0 02ca3c20d_conf 51402000initrd: c0208000
-c02dc800
pagetable_init
set_pte c1100000 002e5309
miscoloured (c013c554)
set_pte c1100004 002de309
miscoloured (c013c56c)
On node 0 totalpages: 00003000
zone(0): 6144 pages.
zone(1): 6144 pages.
zone(2): 0 pages.
trap_init
iodc_con_init
Console: switching to IODC console
Console: mono IODC console 80x34
register_console
Calibrating delay loop... 26.62 BogoMIPS
Memory: 43816k available
kmem_test() - start
kmem_free: Bad front redzone (objp=c2ffe004, name=test-cachep)
kmem_free: Bad rear redzone (objp=c2ffe004, name=test-cachep)
kmem_test() - finished
c2ff0000 c2ff8000 c2fee000 c2ffc000
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
request_irq(259, c01be1d8, 0x0, asp, c2fea060)
Lasi IRQ 259 EIM 0xfffe0003
iosapic_init()
calling get_irt_size
get_irt_size: -1
pdc_pci_irt_size: -1
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
Serial driver version 4.92 (2000-1-27) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 850 blocks [1 disk] into ram disk... |/-\|/-\|/-\|/-\|/-\|/-\|/
-\|/-\|/-\|/-\|/-\|/-\|/-\|/done.
kernel BUG at block_dev.c:411!
kernel BUG at block_dev.c:411!
VFS: Mounted root (ext2 filesystem).
tty_open
vt_console_device returning [0 0] (4 1) 0401
searching for 4/1
found 136/[0,256]
found 128/[0,256]
found 3/[0,256]
found 2/[0,256]
found 5/[64,64]
found 4/[64,64]
found 4/[0,1]
found 5/[2,1]
found 5/[1,1]
found 5/[0,1]
found 4/[1,63]
driver: -1070243152
retval 0
driver.open 0
execve /sbin/init c0207008 c0207030
do_execve
reading c01518e8 c2fe6808 c2fe65c8 128
returned 128
02100108 05124000 00000000 00000000
00000000 00000000 00002f13 00000080
000000b4 00048ac4 40005980 00000138
00000004 000001c8 00000014 00000524
00000000 00000524 00000208 000004e8
00000003 0000e9c0 000000a6 0000072c
0000058f 00007658 00000000 00007658
00007364 00040000 00008ac4 4702a90d
search_binary_handler
trying c0175550
load_som_binary
It seems to be a valid SOM executable
reading c01518e8 c2fe6888 c2fca380 180
returned 180
10000004 00000028 000297a4 00001000
00011000 00005000 40001000 0003b000
0000c308 00002f10 00000001 00000000
8000000b 00000004 00000000 80000001
00000020 39323435 332d3037 42000000
31312e30 36000000 00000000 3891e6d2
00000000 80000001 00000020 39323435
332d3037 42000000 31312e30 34000000
do_mmap c2ec40e0 00001000 0002a000 00000005 00001806 00000011
miscoloured mmap
do_mmap c2ec40e0 40001000 00005000 00000007 00001806 0000003b
miscoloured mmap
do_mmap 00000000 40006000 0000d000 00000007 00000006 00000000
miscoloured mmap
bprm->p: 2001ffda
stack_base 20000000 7ffc3000
stack_base 20001000 7ffc3000
stack_base 20002000 7ffc3000
stack_base 20003000 7ffc3000
stack_base 20004000 7ffc3000
stack_base 20005000 7ffc3000
stack_base 20006000 7ffc3000
stack_base 20007000 7ffc3000
stack_base 20008000 7ffc3000
stack_base 20009000 7ffc3000
stack_base 2000a000 7ffc3000
stack_base 2000b000 7ffc3000
stack_base 2000c000 7ffc3000
stack_base 2000d000 7ffc3000
stack_base 2000e000 7ffc3000
stack_base 2000f000 7ffc3000
stack_base 20010000 7ffc3000
stack_base 20011000 7ffc3000
stack_base 20012000 7ffc3000
stack_base 20013000 7ffc3000
stack_base 20014000 7ffc3000
stack_base 20015000 7ffc3000
stack_base 20016000 7ffc3000
stack_base 20017000 7ffc3000
stack_base 20018000 7ffc3000
stack_base 20019000 7ffc3000
stack_base 2001a000 7ffc3000
stack_base 2001b000 7ffc3000
stack_base 2001c000 7ffc3000
stack_base 2001d000 7ffc3000
stack_base 2001e000 7ffc3000
stack_base 2001f000 c2d1f000
set_pte c2ebe07c 02d1f723
(start_brk) 40013000
(end_code) 0002b000
(start_code) 00001000
(end_data) 40006000
(start_stack) 2001fff8
(brk) 40013000
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5008 02d02627
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ebc004 02d01627
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ebc014 02d05627
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec500c 02d03627
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ebe088 02d22723
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5004 02c01605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ebe080 02d20723
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ebc01c 01007605
do_mmap 00000000 00000000 00000028 00000007 00000012 00000000
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ebc01c 02d07627
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ebc048 01012605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5010 02d04605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ebc044 01011605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5048 02c12605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5098 02c26605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5014 02c05605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5094 02c25605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5040 02c10605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5044 02c11605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5024 02d09605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec504c 02c13605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec509c 02c27605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5050 02c14627
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ebe084 02c21723
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5028 02d0a627
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec506c 02c1b605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5084 02b21627
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ebc00c 02c03607
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5054 02c15627
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec505c 02c17605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5060 02c18605
No such device
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ec5068 02c1a605
current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
set_pte c2ebc038 0100e605
Kernel panic: Attempted to kill init!

--0-424238335-950547380=:27520--


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Xref: news.gmane.org gmane.linux.ports.parisc:6826

On Mon, Feb 14, 2000 at 08:56:20AM -0800, Ulrich Strelow wrote:
> Compiling and booting the latest (20000213) cvs
> version on my 715/33 is partly successful. It ends
> with the RAMDISK loaded message because after this the
> kernel is switching to a serial console which does not
> (yet) exist.

Yup, sounds right.

> It seems that CONFIG_GSC_PS2 is needed to include
> these routines (although the 715/33 does not have a
> GSC or PS2). But after defining CONFIG_GSC_PS2=y the
> kernel boot ends with the attempt to kill the init
> task. And the are two "kernel BUG" messages again,
> this time in block_dev.c:411!

The block_dev kernel BUG messages aren't really a problem.  We get
them on every architecture; it's a `feature' of initrd not yet being
completely fixed.  I agree the HIL driver needs some work.  I've put it
on the joblist :-) [The joblist is about to be published in the website
update I'm putting together right this minute]

> So everything has improved compared to the state
> before the 2.3.42 merge, where even a defconfig-kernel
> ended with lots of kernel BUG messages on my 715/33.

Yay!

> I have attached the complete boot log of this test.
> Has anyone an idea what's going wrong?
> 
> Also: the HIL-driver is still not working. If I
> include it I get lots of kernel BUG messages in
> pagetable_init.
> 
> Ulrich

[...]

> No such device
> current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
> set_pte c2ec5068 02c1a605
> current = c2fe6000, mm = c2ec1040, mmap_sem = c2ec105c
> set_pte c2ebc038 0100e605
> Kernel panic: Attempted to kill init!


The `No such device' message makes me curious.  What ramdisk.bin are
you using?


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--=-=-=


LINUX/PA-RISC NFSROOT HOWTO

(Or how to get to a working shell prompt)


YOU NEED:

A fresh linux-2.3 checkout from CVS

The .config included below

puffin.external.hp.com/pub/parisc/binaries/nfsroot/nfsroot-20000214.tar.gz

A supported PA-RISC box with serial console

A Linux (any Unix will do) server with NFS server, bootpd and tftpd 


Note on consoles:

Yes, you *will* need serial console on the PA-RISC box.  IODC console
was a quick hack to get output during development, but it will never
be usable as an interactive console.  When HP releases docs for STI we
will implement a proper framebuffer console.  Until then, serial is
the only option.  Sorry.

Futhermore this will only work on boxes with LASI.  I'm still working
on support for the NS87560UBD Super I/O chip on [BCJ]x000 boxes.


STEP 1. KERNEL BUILDING

Get the latest linux-2.3 tree from CVS.


a) If you use the standard boot loader

Edit DEFAULT_COMMANDLINE in linux-2.3/arch/parisc/boot/boot_code/ipl_c.c 
to read:

	"vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=10.0.0.1"


b) If you use PALO

Edit the echo line in palo/mklifimage to read

	"vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=10.0.0.1"


In both cases replace 10.0.0.1 with the IP address of your NFS server.


Copy the .config included below to the root of the linux source tree.

make oldconfig
make dep
make clean
make Image	(Or make palo, if you use Paul's loader)

Due to linker issues cross compiling is still not possible.  I.e. you
have to build on HP/UX.


STEP 2. BOOTP, TFTP AND NFS

Copy linux-2.3/arch/parisc/boot/Image (or palo/lifimage) to
/tftpboot/vmlinux on the server.  Make sure the file is world
readable.

Edit /etc/bootptab on the server.  I have an entry like this:

mybox:\
        :hd=/tftpboot:\
        :bf=vmlinux:\
        :ht=ether:\
        :ha=0060b007e4ab:\
        :sm=255.255.255.0:\
        :hn:\
        :ip=10.0.0.6:\
        :vm=rfc1048:

Replace ``mybox'' with the hostname of your PA-RISC box.

You need to insert the MAC address of the PA-RISC box in the ha=
field.  You can find the MAC by typing "in la" at the PDC prompt.

You should also change the IP to something appropriate for your LAN.

Add an entry for the host in /etc/hosts.

Unpack the nfsroot tarball in /tftpboot and rename the unpacked
directory (mybox) to the hostname of your box.

Make sure both bootps and tftp are enabled in /etc/inetd.conf.

Edit your /etc/exports to contain a line like this:

	/tftpboot/mybox		mybox(rw,no_root_squash)

Again, replace mybox with your hostname.

Restart inetd and nfs services if you made any modifications.


STEP 3. GO

Type "bo lan" at the PDC prompt on the PA-box and kapow.  You've got a
prompt (I hope). 

Here's what I get...

---8<---

Stand-alone shell (version 3.4)
500 5 1970 53b
> -mount -t proc proc /proc                                                       
quux                                                                            
quuux                                                                           
> -more /proc/cpuinfo
quux                                                                            
quuux
<< cpuinfo >>
processor       : 0
cpu family      : PA-RISC <NULL>
cpu             : PA8000
cpu MHz         : 160.000000
cpu category    : category A
cpu level       : level 0
cpu shadow regs : no
model           :
model name      : Raven U 160 (9000/780/C160)
sw_id           : 0
hversion        : 0x00000000
sversion        : 0x00000000
I-cache         : 0 KB
D-cache         : 0 KB (WB)
ITLB entries    : 0
DTLB entries    : 0
BTLB            : not supported
---8<---


--=-=-=
Content-Type: application/octet-stream
Content-Disposition: attachment; filename=.config
Content-Description: .config

#
# Automatically generated make config: don't edit
#
# CONFIG_UID16 is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# General options
#
# CONFIG_SMP is not set
CONFIG_GSC=y
CONFIG_GSC_DINO=y
CONFIG_GSC_LASI=y
CONFIG_PCI=y

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# General setup
#
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_BINFMT_SOM=y
# CONFIG_BINFMT_ELF is not set
# CONFIG_BINFMT_MISC is not set
# CONFIG_BINFMT_JAVA is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_IDE is not set

#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_HD_ONLY is not set
# CONFIG_BLK_CPQ_DA is not set

#
# Additional Block Devices
#
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set

#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_NETLINK is not set
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
# CONFIG_UNIX is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_IP_ROUTER is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_ALIAS is not set
# CONFIG_SYN_COOKIES is not set

#
# (it is safe to leave these untouched)
#
# CONFIG_SKB_LARGE is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set

#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_BRIDGE is not set
# CONFIG_LLC is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# SCSI support
#
# CONFIG_SCSI is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
# CONFIG_LASI_82596 is not set

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_SB1000 is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_RTL8139 is not set
# CONFIG_DM9102 is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_EISA=y
# CONFIG_PCNET32 is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
# CONFIG_DE4X5 is not set
CONFIG_DEC_ELCP=y
# CONFIG_DGRS is not set
# CONFIG_EEXPRESS_PRO100 is not set
# CONFIG_LNE390 is not set
# CONFIG_NE3210 is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_SIS900 is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_ES3210 is not set
# CONFIG_EPIC100 is not set
# CONFIG_ZNET is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_YELLOWFIN is not set
# CONFIG_ACENIC is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring driver support
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Character devices
#
# CONFIG_VT is not set
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
CONFIG_SERIAL_EXTENDED=y
# CONFIG_SERIAL_MANY_PORTS is not set
# CONFIG_SERIAL_SHARE_IRQ is not set
# CONFIG_SERIAL_DETECT_IRQ is not set
# CONFIG_SERIAL_MULTIPORT is not set
# CONFIG_HUB6 is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
# CONFIG_PRINTER is not set
# CONFIG_PPDEV is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_JOYSTICK is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set

#
# Video For Linux
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_DRM is not set
# CONFIG_DRM_TDFX is not set
# CONFIG_AGP is not set

#
# Filesystems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_BFS_FS_WRITE is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_SYSV_FS_WRITE is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_NLS is not set

#
# Sound Drivers
#
# CONFIG_SOUND is not set

#
# Kernel hacking
#

--=-=-=


-- 
Martin Kasper Petersen			BOFH, IC1&2, Aalborg University, DK
mailto:mkp@SunSITE.auc.dk		http://SunSITE.auc.dk/~mkp/

--=-=-=--


From - Thu Nov 08 21:11:47 2018
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From: "Martin K. Petersen" <mkp@mkp.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Note about consoles - Clarification
Date: 15 Feb 2000 00:44:20 +0100
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Philipp pointed out I didn't make this clear in my previous mail:

IODC console isn't going away.  It just has extremely limited
usability (No cursor positioning etc).  However, IODC is - and will
continue to be - useful for bootstrapping.

The only currently known-to-work interactive console is the LASI
serial one.  Hence my previous statement about that being the only
option for getting to a prompt for the time being.

-- 
Martin Kasper Petersen			BOFH, IC1&2, Aalborg University, DK
mailto:mkp@SunSITE.auc.dk		http://SunSITE.auc.dk/~mkp/


From - Thu Nov 08 21:11:47 2018
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From: willy@thepuffingroup.com
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Subject: [parisc-linux] new binutils/gcc
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As some of you may have noticed, we now have new binutils and gcc in CVS.
If you previously checked out binutils and/or egcs, you should probably
delete them and get a fresh checkout.  Thanks to Cygnus, this is the
ELF-supporting toolchain.  Thanks to Sammy, this includes sufficient
support for 32-bit ELF to link a kernel.  I've asked him to hold off for
a few days on checking in the kernel changes until everyone has the new
toolchain installed and we have depots/rpms/debs/whatever available.

If you're too impatient or want to hack the toolchain, here's my experience
with it so far on HPUX 11:

install GNU flex.  ld won't build with hpux lex, alas.
install GNU bison.  gcc doesn't even attempt to use yacc.

cvs co binutils
mkdir binutils-build
cd binutils-build
./binutils/configure --target=hppa1.1-linux --prefix=/home/willy/gcc \
	--host=hppa-hpux --disable-nls
make
make install

PATH=/home/willy/gcc/bin:$PATH

cvs co gcc
mkdir gcc-build
cd gcc-build
./gcc/configure --target=hppa1.1-linux --prefix=/home/willy/gcc \
	--host=hppa1.1-hpux --disable-nls
make

and then it dies while making libgcc2.a.  I'll look at it more tomorrow,
but this may save some people some time.


From - Thu Nov 08 21:11:48 2018
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Subject: [parisc-linux] updated web site
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I've updated the website: http://www.thepuffingroup.com/parisc/
Please let me know of any inaccuracies.  Of particular note is the
status page which has an up-to-date jobs list.  Anything which doesn't
have someone's name next to it is an unclaimed project.  Mail me to
volunteer (or to suggest other projects that I've missed).

We have a randomised-config-builder running here and I get the results.
Almost all of the configurations don't build :-)  If we set up a list
that the results were mailed to, would anyone be interested in subscribing
to it and fixing some of the breakages?  It's quite high-traffic; about
30k every hour -- depending how far the build gets before failing.


From - Thu Nov 08 21:11:48 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:6831

> I don't think reserving 0xFXXX XXXX for I/O in userspace is a good idea.
> There is no problem with doing userspace I/O using the normal mmap /dev/mem
> approach.  (Except maybe HPUX compatibility, which doesn't concern linux-
> only processes).

...

> kernel memcpy() shouldn't ever be called with either an IO or a user address

I was referring to user space memcpy, not kernel memcpy.  The HP-UX user
space memcpy supports use with IO mapped addresses, however it has to
differentiate those addresses in order to not do optimizations that won't
work with IO mapped addresses. Having a dedicated range allows for an
easy test. But perhaps if this is not desirable we can just say that
Linux glibc memcpy is not supported for IO mapped addresses (assuming it
is optimized).

> > One disadvantage of this proposal is that we could not support the
> > System V personality null pointer dereference behaviour. This maps
> > a page of zero's at location 0 so that null pointer dereferences will
> > return 0 for buggy software. Do we really still need to maintain this
> > ancient hack?
>
> No, we don't.  We're talking about PER_LINUX binaries here, and those
> never expected to be able to dereference NULL pointers.

I don't know much about PER_SVR4, and why it exists.  Willy pointed it
out to me.  I can see from the kernel source that perhaps it is only there
for sparc.  If it is not necessary for parisc-linux to support then
there is no issue. If it is necessary then I guess I assumed that PER_SVR4
binaries would use the same gateway page as PER_LINUX binaries.

> Of course every page in the region 0xfffc0000 - 0x3f fffc (it's a 17-bit
> signed immediate shifted left 2 bits, so that should be -2^18 - 2^18-4)
> can be used, so we just need a page within the first 256 KB.
 
This is true for user space. For kernel space, I don't think we can
use anything in F space, unless we map the real IO addresses somewhere
else in virtual space. I'm not sure what assumptions are being made
right now regarding that mapping in the drivers.

I was also thinking that we may want to eventually map physical addresses
directly (with no offset) to virtual addresses, in order to support the
maximum amount of physical memory. But Perhaps we can have a 16 Mb offset
instead.

> a variety of reasons why it might not be available long term) the
> > sequence could be shortened to:
> >
> >       mtsp %r0,%sr0
> >       ble  <gateway offset>(%sr0,%r0)
> >       ldi <syscall #>,%r20
>
> In fact, what's wrong with shortening _this_ sequence to
>
>       ble <gateway offset)(%sr2, %r0)
>       ldi <syscall #>,%r20
>
> and teaching userspace to not modify sr2 ?

I like this idea.  The only disadvantage is that if the user modifies sr2
by mistake, all of a sudden all of the syscalls stop working (for that
process only).  It might be hard to debug.  But, as long as we make sure
that gcc never touches sr2, there should be almost no legitimate reason to
play with space registers in the user address space for Linux processes,
since we are going to have sr4=sr5=sr6=sr7.  In fact, gcc should be
modified to stop using $$dyncall for indirect function pointer calls.  So,
a C programmer will never run into this problem by mistake.  Only people
doing assembly language programming could run into the error.

Now, I am assuming we would set sr2 to 0 and locate the gateway page in
the kernel address space if we chose this proposal.  But this idea has the
flexibility of allowing us to move the gateway page into another space
completely if we ever need to (would require modifications to the tlb miss
handler).  It also has the interesting feature that a programmer could set
sr2 to point into the user address space, and if we choose an offset for
the gateway page in the kernel address space and make that offset also
available for mmap in the user address space, the user could place there
own page at the gateway offset in user space and intercept all syscalls
(there are other ways of doing this, but I just thought it was
interesting).

John Marvin
jsm@fc.hp.com


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Subject: Re: [parisc-linux] Linux syscall ABI
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On Mon, Feb 14, 2000 at 10:36:39PM -0700, John Marvin wrote:
> > No, we don't.  We're talking about PER_LINUX binaries here, and those
> > never expected to be able to dereference NULL pointers.
> 
> I don't know much about PER_SVR4, and why it exists.  Willy pointed it
> out to me.  I can see from the kernel source that perhaps it is only there
> for sparc.  If it is not necessary for parisc-linux to support then
> there is no issue. If it is necessary then I guess I assumed that PER_SVR4
> binaries would use the same gateway page as PER_LINUX binaries.

Linux has a personality() syscall which tells the kernel what operating
system this binary was compiled for.  PER_SVR4 means that this binary
was compiled for SVR4.  We _may_ want to include a PER_HPUX at some
point, but i'm not convinced we need it yet.  I pointed you at that bit
of code to show you that for some binaries Linux did that nasty hack,
rather than to advocate we do it too.


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ok, I couldn't wait till tomorrow..

You'll need an include directory.  You can either do it the way I did
(pick them out of glibc, one at a time), or you can get a tarball of
the fruits of my labour:

ftp://puffin.external.hp.com/pub/parisc/src/include.tar.gz

Plop this into your $prefix after installing binutils.  ie this was the
contents of /home/willy/gcc/include.  Now you need to persuade gcc to look
there for it (I thought it was supposed to do that automatically, but it seems
not).  Change line 370 of gcc-build/gcc/Makefile to read:

LIBGCC2_INCLUDES = -I/home/willy/gcc/include

and then type make.  Now I get to :

Testing libgcc1.  Ignore linker warning messages.
/home/willy/cvs/gcc-build/gcc/xgcc -B/home/willy/cvs/gcc-build/gcc/ \
	-B/home/willy/gcc/hppa1.1-linux/bin/ \
	-I/home/willy/gcc/hppa1.1-linux/include -DCROSS_COMPILE -DIN_GCC \
	-DMULTIBYTE_CHARS=1   -g -O2  -I./include  libgcc1-test.o \
	-o libgcc1-test \
  -nostartfiles -nostdlib `/home/willy/cvs/gcc-build/gcc/xgcc \
	-B/home/willy/cvs/gcc-build/gcc/ -B/home/willy/gcc/hppa1.1-linux/bin/ \
	-I/home/willy/gcc/hppa1.1-linux/include --print-libgcc-file-name`
/home/willy/gcc/hppa1.1-linux/bin/ld: can not size stub section: Bad value
libgcc1-test.o: In function `main_without__main':
/home/willy/cvs/gcc-build/gcc/../../gcc/gcc/libgcc1-test.c:20: undefined reference to `$$divI'
/home/willy/cvs/gcc-build/gcc/../../gcc/gcc/libgcc1-test.c:14: undefined reference to `$global$'
death: $$divI type 1
collect2: ld returned 1 exit status
make[1]: *** [libgcc1-test] Error 1

(wrapped for better mailer handling)

And with that I really am going to bed.  g'night.


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From: Philipp Rumpf <prumpf@inwestnet.de>
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Subject: Re: [parisc-linux] Linux syscall ABI
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Xref: news.gmane.org gmane.linux.ports.parisc:6834

> > kernel memcpy() shouldn't ever be called with either an IO or a user address
> 
> I was referring to user space memcpy, not kernel memcpy.  The HP-UX user
> space memcpy supports use with IO mapped addresses, however it has to
> differentiate those addresses in order to not do optimizations that won't
> work with IO mapped addresses. Having a dedicated range allows for an
> easy test. But perhaps if this is not desirable we can just say that
> Linux glibc memcpy is not supported for IO mapped addresses (assuming it
> is optimized).

This sounds to me like a typical case of doing a static optimization (is
this a memcpy() to I/O space, from I/O space, to and from I/O space) at
runtime.

> > > One disadvantage of this proposal is that we could not support the
> > > System V personality null pointer dereference behaviour. This maps
> > > a page of zero's at location 0 so that null pointer dereferences will
> > > return 0 for buggy software. Do we really still need to maintain this
> > > ancient hack?
> >
> > No, we don't.  We're talking about PER_LINUX binaries here, and those
> > never expected to be able to dereference NULL pointers.
> 
> I don't know much about PER_SVR4, and why it exists.  Willy pointed it
> out to me.  I can see from the kernel source that perhaps it is only there
> for sparc.  If it is not necessary for parisc-linux to support then
> there is no issue. If it is necessary then I guess I assumed that PER_SVR4
> binaries would use the same gateway page as PER_LINUX binaries.
> 
> > Of course every page in the region 0xfffc0000 - 0x3f fffc (it's a 17-bit
> > signed immediate shifted left 2 bits, so that should be -2^18 - 2^18-4)
> > can be used, so we just need a page within the first 256 KB.
>  
> This is true for user space. For kernel space, I don't think we can
> use anything in F space, unless we map the real IO addresses somewhere
> else in virtual space.

That's what I meant by "within the first 256 KB". ble <offset>(srX, r0)
gives us the range 0xfffc0000 - 0x3 fffc, we can't use 0xfffc0000 - 0xfffffff,
so we're limited to the first 256 KB.

> I'm not sure what assumptions are being made
> right now regarding that mapping in the drivers.

Mapping the I/O space to 0xf000 0000 - 0xffff ffff would make sense, IMO, and
shouldn't be a problem with our drivers.

> I was also thinking that we may want to eventually map physical addresses
> directly (with no offset) to virtual addresses, in order to support the
> maximum amount of physical memory.

We agreed upon doing this eventually, didn't we ?

> But Perhaps we can have a 16 Mb offset instead.

I think not mapping the first 64 KB and making a copy of page 0 somewhere
else would make sense.  Then we could use the first 64 KB of the virtual
address space to implement gateway pages.

> > a variety of reasons why it might not be available long term) the
> > > sequence could be shortened to:
> > >
> > >       mtsp %r0,%sr0
> > >       ble  <gateway offset>(%sr0,%r0)
> > >       ldi <syscall #>,%r20
> >
> > In fact, what's wrong with shortening _this_ sequence to
> >
> >       ble <gateway offset)(%sr2, %r0)
> >       ldi <syscall #>,%r20
> >
> > and teaching userspace to not modify sr2 ?
> 
> I like this idea.  The only disadvantage is that if the user modifies sr2
> by mistake, all of a sudden all of the syscalls stop working (for that
> process only).

I don't see a real problem with that.  Modifying SR2 requires either direct
modification (the only code I could see doing that is HP/UX code, which isn't
supposed to execute with PER_LINUX anytime soon) or executing random bytes,
which will always break in unexpected ways.

> It might be hard to debug.  But, as long as we make sure that gcc never
> touches sr2, there should be almost no legitimate reason to
> play with space registers in the user address space for Linux processes,
> since we are going to have sr4=sr5=sr6=sr7.  In fact, gcc should be
> modified to stop using $$dyncall for indirect function pointer calls.  So,

There is an option for that.  Something along the lines of "fast function
calls" (I'll have a look lateron).

> Now, I am assuming we would set sr2 to 0 and locate the gateway page in
> the kernel address space if we chose this proposal.  But this idea has the
> flexibility of allowing us to move the gateway page into another space
> completely if we ever need to (would require modifications to the tlb miss
> handler).  It also has the interesting feature that a programmer could set
> sr2 to point into the user address space, and if we choose an offset for
> the gateway page in the kernel address space and make that offset also
> available for mmap in the user address space, the user could place there
> own page at the gateway offset in user space and intercept all syscalls
> (there are other ways of doing this, but I just thought it was
> interesting).

I agree this would be another point in favour of using 0:0 or 0:0x1000 as
default gateway page.

	Philipp


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] State Of The Port [2000/02/13]
Date: Tue, 15 Feb 2000 07:59:44 -0800 (PST)
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--- willy@thepuffingroup.com wrote:
> On Mon, Feb 14, 2000 at 08:56:20AM -0800, Ulrich
> Strelow wrote:
> > Compiling and booting the latest (20000213) cvs
> > version on my 715/33 is partly successful. It ends
> > with the RAMDISK loaded message because after this
> the
> > kernel is switching to a serial console which does
> not
> > (yet) exist.
> 
> Yup, sounds right.
> 
> > It seems that CONFIG_GSC_PS2 is needed to include
> > these routines (although the 715/33 does not have
> a
> > GSC or PS2). But after defining CONFIG_GSC_PS2=y
> the
> > kernel boot ends with the attempt to kill the init
> > task. And the are two "kernel BUG" messages again,
> > this time in block_dev.c:411!
> 
> The block_dev kernel BUG messages aren't really a
> problem.  We get
> them on every architecture; it's a `feature' of
> initrd not yet being
> completely fixed.  I agree the HIL driver needs some
> work.  I've put it
> on the joblist :-) [The joblist is about to be
> published in the website
> update I'm putting together right this minute]
> 
> > So everything has improved compared to the state
> > before the 2.3.42 merge, where even a
> defconfig-kernel
> > ended with lots of kernel BUG messages on my
> 715/33.
> 
> Yay!
> 
> > I have attached the complete boot log of this
> test.
> > Has anyone an idea what's going wrong?
> > 
> > Also: the HIL-driver is still not working. If I
> > include it I get lots of kernel BUG messages in
> > pagetable_init.
> > 
> > Ulrich
> 
> [...]
> 
> > No such device
> > current = c2fe6000, mm = c2ec1040, mmap_sem =
> c2ec105c
> > set_pte c2ec5068 02c1a605
> > current = c2fe6000, mm = c2ec1040, mmap_sem =
> c2ec105c
> > set_pte c2ebc038 0100e605
> > Kernel panic: Attempted to kill init!
> 
> 
> The `No such device' message makes me curious.  What
> ramdisk.bin are
> you using?
>

Whoops, sorry this was my fault. I should have read
John Marvin's message "Lan configuration failures"
from Feb 01, 2000. I was using the latest ramdisk
(20000129). I changed this to the 19991108 (!) version
and now I get my shell prompt again !

What is the difference between the 6 ramdisks on the
ftp server ? 

Anyway, thanks for the quick reply.
Ulrich
 
__________________________________________________
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Talk to your friends online with Yahoo! Messenger.
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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Linux syscall ABI
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John Marvin wrote:
...
> > Of course every page in the region 0xfffc0000 - 0x3f fffc (it's a 17-bit
> > signed immediate shifted left 2 bits, so that should be -2^18 - 2^18-4)
> > can be used, so we just need a page within the first 256 KB.
>  
> This is true for user space. For kernel space, I don't think we can
> use anything in F space, unless we map the real IO addresses somewhere
> else in virtual space. I'm not sure what assumptions are being made
> right now regarding that mapping in the drivers.

Drivers don't map anything. The assumption for GSC/PCI drivers is the
address given will work with readl/writel (or inb/outb) routines.

For GSC, the HPA is in the struct hp_device->hpa field and readl/writel
are aliases for gsc_readl/gsc_writel.

For PCI devices the base address is in struct pci_device ->resources[].
The PCI drivers know to use MMIO or I/O port space for their device
(often based on #define flags).  And again readl/writel alias to
gsc_readl/gsc_writel for MMIO. inl/outl are defined to be an indirect
function call to either Dino or "lba" PCI services (similar to
how pci_config_read is an indirect call).

gsc_readl/writel take a physical address as the address parameter.
I would like to get away from gsc_read for one simple reason: HPMC.
If a driver incorrectly accesses something which isn't supposed to
we get either an HPMC or undefined behavior. Most likely the HPMC.
If the read/write routines referenced a virtual address, we have
much better chances of getting a data page fault and some decent
debugging information to track down the problem.

This is #2 on my TODO list after reviewing the coherent DMA services
recently introduced in 2.3.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Linux syscall ABI
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To: Grant Grundler <grundler@cup.hp.com>
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> Drivers don't map anything. The assumption for GSC/PCI drivers is the
> address given will work with readl/writel (or inb/outb) routines.

PCI drivers call ioremap(), which is free to do the mapping (but I don't
think it should, for PA-RISC).

> For GSC, the HPA is in the struct hp_device->hpa field and readl/writel
> are aliases for gsc_readl/gsc_writel.

which itself will be aliased to simple volatile accesses soon.

> gsc_readl/writel take a physical address as the address parameter.
> I would like to get away from gsc_read for one simple reason: HPMC.
> If a driver incorrectly accesses something which isn't supposed to
> we get either an HPMC or undefined behavior. Most likely the HPMC.
> If the read/write routines referenced a virtual address, we have
> much better chances of getting a data page fault and some decent
> debugging information to track down the problem.

HPMC is good debugging information - you've got PIM.  Of course, we want
an HPMC handler too, at some point.  The assembly part just tries to
find out if the machine is still usable, and resets it if it's not. 
If it is, we'd like it to be treated as normal interruption, and then
have a CPU-specific fault handler that reads the interesting registers
and prints a nice message.

	Philipp Rumpf


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From: Frank Rowand <frank_rowand@mvista.com>
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Subject: Re: [parisc-linux] Linux syscall ABI
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Philipp Rumpf wrote:
> 
> > Drivers don't map anything. The assumption for GSC/PCI drivers is the
> > address given will work with readl/writel (or inb/outb) routines.
> 
> PCI drivers call ioremap(), which is free to do the mapping (but I don't
> think it should, for PA-RISC).
> 
> > For GSC, the HPA is in the struct hp_device->hpa field and readl/writel
> > are aliases for gsc_readl/gsc_writel.
> 
> which itself will be aliased to simple volatile accesses soon.
> 
> > gsc_readl/writel take a physical address as the address parameter.
> > I would like to get away from gsc_read for one simple reason: HPMC.
> > If a driver incorrectly accesses something which isn't supposed to
> > we get either an HPMC or undefined behavior. Most likely the HPMC.
> > If the read/write routines referenced a virtual address, we have
> > much better chances of getting a data page fault and some decent
> > debugging information to track down the problem.
> 
> HPMC is good debugging information - you've got PIM.  Of course, we want
> an HPMC handler too, at some point.  The assembly part just tries to
> find out if the machine is still usable, and resets it if it's not.
> If it is, we'd like it to be treated as normal interruption, and then
> have a CPU-specific fault handler that reads the interesting registers
> and prints a nice message.
> 
>         Philipp Rumpf
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

An HPMC may be delayed, relative to the instruction that caused it.  The worst
case is that a context switch _could_ occur before the HPMC occurs (and yes,
we did see this problem with our HP-UX and HP-RT VME systems when a VME
time-out was long enough).  This can make it more difficult to figure out what
instruction was issued to cause the HPMC. The advantage of the page fault is
that you know exactly what instruction caused the fault.

-Frank
-- 
MontaVista Software, Inc
frank_rowand@mvista.com


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Philipp Rumpf wrote:
...
> HPMC is good debugging information - you've got PIM.

IMO, Frank didn't say this clearly:
	PIM is not "good debugging information".

Given the complexity of the systems, knowing *some* (not all)
of the HW state is marginally useful at best. When we get
into debugging driver problems later on, this will be clearer.

Besides the asynchronous nature of HPMCs, PIMs are unique to each
class of box. So decoding a PIM on a K-class is quite different
from the PIM on N or L-class. Only recently have tools been made
internally available to help decode each type of PIM. I wouldn't
hold my breath waiting for those to get published.


> Of course, we want
> an HPMC handler too, at some point.  The assembly part just tries to
> find out if the machine is still usable, and resets it if it's not.
> If it is, we'd like it to be treated as normal interruption, and then
> have a CPU-specific fault handler that reads the interesting registers
> and prints a nice message.

If linux could learn to dump host memory to disk, then HPMC's would
a bit easier to debug since one could review data structures for suspect
code. I think that's what the HPMC handler is intended for - not
attempt to recover. Attempting to recover from an asyncronous fault
doesn't sound feasible to me. But what do I know anyway....

later,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Kirk Bresniker <kirkb@chrome.rose.hp.com>
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Subject: Re: [parisc-linux] Linux syscall ABI
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Grant wrote:

| 
| Given the complexity of the systems, knowing *some* (not all)
| of the HW state is marginally useful at best. When we get
| into debugging driver problems later on, this will be clearer.
| 
| Besides the asynchronous nature of HPMCs, PIMs are unique to each
| class of box. So decoding a PIM on a K-class is quite different
| from the PIM on N or L-class. Only recently have tools been made
| internally available to help decode each type of PIM. I wouldn't
| hold my breath waiting for those to get published.

There are two key take aways from what Grant has said: 

1. There are some platform specific tools which help PIM analysis.  As
   someone who has read literally thousands of PIM dumps over 10 years
   worth of server platforms, and as someone who has contributed some of
   the analysis tools, I would say that the tools only automate the
   decoding of status register values (which are all implementation
   specific). There has never been an expert tool which pulls in a 
   PIM dump and spits out the answer. 

2. The platforms which Grant specified are server platforms, not the
   workstations.  In my experience, you're going to find many more
   people familiar with server PIM dump output than workstations, simply
   because of the threshold of pain of the customer base. A server
   customer is much more concerned with getting a fully analysis of
   each and every failure than a workstation customer.

In general, for real hardware faults, PIM dumps are usually as good 
as the underlying hardware error logging registers in telling an
expert what has gone wrong. But, in this case, when there is an OS or
OS/hardware interaction, the PIM is usually not enough. 

| 
| If linux could learn to dump host memory to disk, then HPMC's would
| a bit easier to debug since one could review data structures for suspect
| code. I think that's what the HPMC handler is intended for - not
| attempt to recover. Attempting to recover from an asyncronous fault
| doesn't sound feasible to me. But what do I know anyway....
| 

I don't know what Grant does (n't) know :), but I second the call for a
core dump.  To give an example of a complex hardware/OS interaction, I
was once debugging a system which was regularly getting OS panics due to
data page faults.  As a hardware engineer I would, as a matter of
principle, blaim software and then firmware.  But, the problem was
actually a double bit error due to a bad SRAM in the instruction cache
which was corrupting an instruction.  I only found this out by comparing
instructions and data in the memory dumps with the data stored in
PIM dumps.

As to recovery from HMPCs, I can only speak to the hardware generated
exceptions.  Most of the hardware generated HPMCs are linked to 
events which calls into question the validity of information. Get a
parity error on a private, dirty cache line? Well that means that there
is no valid copy anywhere. Better to dump PIM and halt immediately
rather than possibly commit bad data to permanent storage.  I think
that you have to be pretty confident to continue with other than
a core dump or tombstone page.

KMB
--
+============================================================+
|       Kirk Bresniker    	(916) 748-2393		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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> This sounds to me like a typical case of doing a static optimization (is
> this a memcpy() to I/O space, from I/O space, to and from I/O space) at
> runtime.

I believe there are some cases in the graphics libraries where it is
not known at runtime whether the destination will be IO (framebuffer)
or memory. But I also tend to agree with you. 99.9% of the use of memcpy
will not be for IO, so it probably would have made more sense for the
graphics libraries, and any other code where there is any possibility
of being handed a pointer to IO space, to handle it in a different way,
rather than having the test be in memcpy.


> > But Perhaps we can have a 16 Mb offset instead.
>
> I think not mapping the first 64 KB and making a copy of page 0 somewhere
> else would make sense.  Then we could use the first 64 KB of the virtual
> address space to implement gateway pages.

We can probably use a smaller offset than 16 Mb but 64 Kb won't work.  We
have to make sure that the kernel space virtual addresses are equivalently
aliased with their physical addresses. 64 Kb would work on a 712, but it
won't work on a C3000.  Currently PCXU supports a maximum external direct
mapped cache size of 4 Mb, and I don't think that has been increased for
PCXW.  I'm not sure what the largest actually implemented direct mapped
cache is, but I know it is at least 2 Mb.  Of course, to take full
advantage of large pages, it might make sense to use a larger offset, i.e.
64 Mb.

Rereading what you said above made me realize that you probably were not
talking about a 64 Kb offset. If so, then you are talking about
still using an offset of 0, but just not mapping the first 64 Kb a memory,
i.e. throwing those pages "away" (actually we can probably find ways
to use them). The only problem with this is that we would be prevented
from using maximally large tlb mappings to map the first 64 Mb of memory.
If we moved the offset to 64 Mb we could use 64 Mb page size mappings
to map the kernel address space. The cost of this is that it reduces
the amount of physical memory we can support.  We can't support 4 Gb
(at least not easily), since we need virtual space for the vmalloc area.
So I'm not sure losing 64 Mb of virtual space at the bottom end is that
much of an issue.

What is the largest amount of physical memory we want to support for the
32 bit implementation?  How hard do we want to work to achieve it?  We
can't support more than 4 Gb.  It would take some work to support 4 Gb.
My feeling is that if we supported 3.5 Gb max that would be more than
adequate.  We could use a 64 Mb offset and use 64 Mb page size mappings to
cover the kernel address space.  This should leave enough space for the
vmalloc area.

> >
> > I like this idea.  The only disadvantage is that if the user modifies sr2
> > by mistake, all of a sudden all of the syscalls stop working (for that
> > process only).
>
> I don't see a real problem with that.  Modifying SR2 requires either direct
> modification (the only code I could see doing that is HP/UX code, which isn't
> supposed to execute with PER_LINUX anytime soon) or executing random bytes,
> which will always break in unexpected ways.
>

I agree that it is not a significant enough problem to stop us from doing
this. So, I propose the following:

    1) When we move the kernel virtual mappings we will leave room at
    the bottom to a) properly trap on null pointer dereferences, and
    b) provide room for a Linux syscall gateway page in the kernel
    address space (space 0). This gateway page will be located at an
    offset within the positive offset range of a ble instruction.

    2) We will set sr2 to zero for each process.

    3) We will only map an HP-UX syscall gateway page into HP-UX
    processes, i.e. we will not map any gateway page into the user
    address space for PER_LINUX processes.

    4) Linux syscalls will use the following 2 instruction sequence
    to reach the gateway page:

	ble <gateway offset>)(%sr2,%r0)
	ldi <syscall #>,%r20

So, if anyone has a significant problem with this proposal, speak up.

John Marvin
jsm@fc.hp.com


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Subject: [parisc-linux] Location of HIL protocol docs?
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A brief poking around HP's site didn't turn me up any links --
and I'd prefer to enhance the existing code if appropriate, 
rather than just reformat it, not to mention debugging might 
go faster if I actually understand what I'm doing :).

Anyone got a link to tech docs on HIL?

--
Brian S. Julin



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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: [parisc-linux] Virtual mapping of IO cards
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Note: I've changed the subject, because I think this issue is mostly
separate from the Linux syscall issue.

> An HPMC may be delayed, relative to the instruction that caused it.  The
> worst case is that a context switch _could_ occur before the HPMC occurs
> (and yes, we did see this problem with our HP-UX and HP-RT VME systems
> when a VME time-out was long enough).  This can make it more difficult to
> figure out what instruction was issued to cause the HPMC.  The advantage
> of the page fault is that you know exactly what instruction caused the
> fault.

But this doesn't help make your case.  You got the HPMC anyway because the
card failed to respond in time.  The virtual mapping didn't help you.

Virtually mapping the card doesn't help with HPMC's caused by dma buffer
mismanagement (i.e. the card causes the HPMC while mastering the bus).

Drivers for memory mapped register only cards, i.e. cards without any
type of onboard memory (i.e. framebuffers, script memory, etc.) are
not very likely to ever run into a bug of this type, since register
pointers are usually set up once and never changed.

In my experience, the majority of HPMC's have been caused by VM errors.
Then comes the two cases mentioned above (card not responding, dma
errors).  In my experience, the majority of driver page faults were caused
by memory references (i.e. mismanaging memory buffers), not IO space
references.  I can't say I've ever seen a driver page fault bug (i.e. one
that would have HPMC'd in the current Linux implementation) that was
caused by the driver mismanaging a pointer to its virtually mapped card
space.  That is my experience.  YMMV.

What percentage of the bugs that are caused by a driver mismanaging a
pointer to its card space would be significantly helped by page faulting,
rather than HPMC'ing? Although an HPMC can be delayed, I've found in
the majority of the cases it was either right on, or one instruction off.

I'm not trying to argue against virtually mapping the card (although I
would be all for avoiding mapping a large graphics frame buffer in the
kernel address space). I just want to be sure we do it for the right
reasons.

John Marvin
jsm@fc.hp.com


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From: Philipp Rumpf <prumpf@inwestnet.de>
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Subject: Re: [parisc-linux] Linux syscall ABI
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> > > But Perhaps we can have a 16 Mb offset instead.
> >
> > I think not mapping the first 64 KB and making a copy of page 0 somewhere
> > else would make sense.  Then we could use the first 64 KB of the virtual
> > address space to implement gateway pages.
> 
> We can probably use a smaller offset than 16 Mb but 64 Kb won't work.  We

I didn't propose any offset.  I proposed to do the mapping somewhat like this:

virt		phys
0000 0000 	somewhere (whereever our syscall page is)
0000 1000 	- (invalid)
 ...
0000 f000	- (invalid)
0001 0000 	0001 0000
 ...
01ff f000	01ff f000

for a 32 MB box.  This is why I said we should make a copy of page 0.

> Rereading what you said above made me realize that you probably were not
> talking about a 64 Kb offset. If so, then you are talking about
> still using an offset of 0, but just not mapping the first 64 Kb a memory,
> i.e. throwing those pages "away" (actually we can probably find ways
> to use them). The only problem with this is that we would be prevented
> from using maximally large tlb mappings to map the first 64 Mb of memory.

I don't think I care.  Note that this is for PA1.1 anyway, so we don't have
large pages architecturally.

> If we moved the offset to 64 Mb we could use 64 Mb page size mappings
> to map the kernel address space. The cost of this is that it reduces
> the amount of physical memory we can support.  We can't support 4 Gb
> (at least not easily), since we need virtual space for the vmalloc area.
> So I'm not sure losing 64 Mb of virtual space at the bottom end is that
> much of an issue.
> 
> What is the largest amount of physical memory we want to support for the
> 32 bit implementation?  How hard do we want to work to achieve it?  We
> can't support more than 4 Gb.  It would take some work to support 4 Gb.
> My feeling is that if we supported 3.5 Gb max that would be more than
> adequate.  We could use a 64 Mb offset and use 64 Mb page size mappings to
> cover the kernel address space.  This should leave enough space for the
> vmalloc area.

IMHO, don't map the first 64 KB, map the first 3.25 GB - 64 KB, then have
512 MB vmalloc space, then 256 MB I/O space.  (For newer boxes it looks like
the 64 KB we don't map should be more like 1 MB).

> > I don't see a real problem with that.  Modifying SR2 requires either direct
> > modification (the only code I could see doing that is HP/UX code, which isn't
> > supposed to execute with PER_LINUX anytime soon) or executing random bytes,
> > which will always break in unexpected ways.
> >
> 
> I agree that it is not a significant enough problem to stop us from doing
> this. So, I propose the following:
> 
>     1) When we move the kernel virtual mappings we will leave room at
>     the bottom to a) properly trap on null pointer dereferences, and
>     b) provide room for a Linux syscall gateway page in the kernel
>     address space (space 0). This gateway page will be located at an
>     offset within the positive offset range of a ble instruction.

If you mean "not map the first 64 KB - 1 MB" by "leave room", I agree.

>     2) We will set sr2 to zero for each process.

Agreed.

>     3) We will only map an HP-UX syscall gateway page into HP-UX
>     processes, i.e. we will not map any gateway page into the user
>     address space for PER_LINUX processes.

agreed.

>     4) Linux syscalls will use the following 2 instruction sequence
>     to reach the gateway page:
> 
> 	ble <gateway offset>)(%sr2,%r0)
> 	ldi <syscall #>,%r20

I'd prefer to fix gateway offset now - it's a pretty arbitrary decision,
but it might break binary compatibility lateron.  My proposal is 0x100.

So did anyone think about how to write the actual syscall asm statements ?
it seems rather hard to me, at least without writing the actual functions
directly and having one more level of indirection ...


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Virtual mapping of IO cards
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John Marvin wrote:
...
> Virtually mapping the card doesn't help with HPMC's caused by dma buffer
> mismanagement (i.e. the card causes the HPMC while mastering the bus).

But it generally helps one tell the difference.

> 
> Drivers for memory mapped register only cards, i.e. cards without any
> type of onboard memory (i.e. framebuffers, script memory, etc.) are
> not very likely to ever run into a bug of this type, since register
> pointers are usually set up once and never changed.

Agreed. "not very likely" and "never" are not the same. When bringing
up new drivers, it is in fact more likely than for a mostly working
driver. So while I agree with the statement, I don't agree with the
conclusion.


> In my experience, the majority of HPMC's have been caused by VM errors.

That's cuz you work mostly on VM! :^)

For me, it's been mostly device driver bugs (drivers loosing DMA addresses)
and some I/O MMU code bugs.

> Then comes the two cases mentioned above (card not responding, dma
> errors).  In my experience, the majority of driver page faults were caused
> by memory references (i.e. mismanaging memory buffers), not IO space
> references.

Agreed.

> I can't say I've ever seen a driver page fault bug (i.e. one
> that would have HPMC'd in the current Linux implementation) that was
> caused by the driver mismanaging a pointer to its virtually mapped card
> space.  That is my experience.  YMMV.

I have. The driver control structure got corrupted.
I've worked on so many memory corruption problems.
I can't imagine debugging them if an errant driver were
scribbling in real mode to random places in memory.
AFAICT, the whole point of virtual mode is to avoid this.

> What percentage of the bugs that are caused by a driver mismanaging a
> pointer to its card space would be significantly helped by page faulting,
> rather than HPMC'ing? Although an HPMC can be delayed, I've found in
> the majority of the cases it was either right on, or one instruction off.

Very small. But I am still convinced it's worth it.

AFAIK, the processor can only HPMC if a LOAD times out.
What about processor STORE?

I know stores to I/O devices which have "gone fatal" will complete.
I don't know about stores to "unused" I/O space (no device response).
I assume stores to physical memory while in real mode will complete too.
I'd really like to avoid that. Stores from virtual mode are likely
to data page fault (not always) while in real mode I had the impression
they never would. Is this correct?

> 
> I'm not trying to argue against virtually mapping the card (although I
> would be all for avoiding mapping a large graphics frame buffer in the
> kernel address space). I just want to be sure we do it for the right
> reasons.

ok. Fair enough.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Location of HIL protocol docs?
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"Brian S. Julin" wrote:

> Anyone got a link to tech docs on HIL?

HIL comes off the "WAX" (EISA Bus Adapter chip) on C200.
I assume the same is true for any box which supports EISA.
(ie 715/725, GSCtoPCI workstations).

I don't know if WAX documents will ever get published.
Probably but not right away if they aren't already.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Frank Rowand <frank_rowand@mvista.com>
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Subject: Re: [parisc-linux] Virtual mapping of IO cards
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John Marvin wrote:
> 
> Note: I've changed the subject, because I think this issue is mostly
> separate from the Linux syscall issue.
> 
> > An HPMC may be delayed, relative to the instruction that caused it.  The
> > worst case is that a context switch _could_ occur before the HPMC occurs
> > (and yes, we did see this problem with our HP-UX and HP-RT VME systems
> > when a VME time-out was long enough).  This can make it more difficult to
> > figure out what instruction was issued to cause the HPMC.  The advantage
> > of the page fault is that you know exactly what instruction caused the
> > fault.
> 
> But this doesn't help make your case.  You got the HPMC anyway because the
> card failed to respond in time.  The virtual mapping didn't help you.
> 
> Virtually mapping the card doesn't help with HPMC's caused by dma buffer
> mismanagement (i.e. the card causes the HPMC while mastering the bus).
> 
> Drivers for memory mapped register only cards, i.e. cards without any
> type of onboard memory (i.e. framebuffers, script memory, etc.) are
> not very likely to ever run into a bug of this type, since register
> pointers are usually set up once and never changed.
> 
> In my experience, the majority of HPMC's have been caused by VM errors.
> Then comes the two cases mentioned above (card not responding, dma
> errors).  In my experience, the majority of driver page faults were caused
> by memory references (i.e. mismanaging memory buffers), not IO space
> references.  I can't say I've ever seen a driver page fault bug (i.e. one
> that would have HPMC'd in the current Linux implementation) that was
> caused by the driver mismanaging a pointer to its virtually mapped card
> space.  That is my experience.  YMMV.
> 
> What percentage of the bugs that are caused by a driver mismanaging a
> pointer to its card space would be significantly helped by page faulting,
> rather than HPMC'ing? Although an HPMC can be delayed, I've found in
> the majority of the cases it was either right on, or one instruction off.


Yes, an HPMC caused by a read will behave as you describe.  It's the
case of a write that may be delayed by passing through one or more queues.


> I'm not trying to argue against virtually mapping the card (although I
> would be all for avoiding mapping a large graphics frame buffer in the
> kernel address space). I just want to be sure we do it for the right
> reasons.
> 
> John Marvin
> jsm@fc.hp.com
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-Frank
-- 
MontaVista Software, Inc
frank_rowand@mvista.com


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>
> I don't think I care.  Note that this is for PA1.1 anyway, so we don't have
> large pages architecturally.

But we do have an even smaller resource of block tlb's that can also
map a maximum of 64 Mb at a time, and which also need to be aligned
to there same size that they map. For this reason it might be worth
considering having a 64 Mb offset rather than a 0 offset and not mapping
the first 64 Kb.

>
> I'd prefer to fix gateway offset now - it's a pretty arbitrary decision,
> but it might break binary compatibility lateron.  My proposal is 0x100.

That's fine with me. We can put break instructions in 0x00-0xfc to catch
anyone branching through a null function pointer.

John Marvin
jsm@fc.hp.com


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> >
> > Drivers for memory mapped register only cards, i.e. cards without any
> > type of onboard memory (i.e. framebuffers, script memory, etc.) are
> > not very likely to ever run into a bug of this type, since register
> pointers are usually set up once and never changed.
>
> Agreed. "not very likely" and "never" are not the same. When bringing
> up new drivers, it is in fact more likely than for a mostly working
>  driver. So while I agree with the statement, I don't agree with the
> conclusion.

I guess I was mostly talking from a released version perspective, not a
development perspective.  During development you would actually get even
more debug information if you just put driver specific range checking into
a private version of the read/write macro's (i.e. you could get source
code line numbers, etc.)

I really am not trying to argue strongly against mapping the cards. I
see only two performance issues:

    1) PCXL2 processors require that the U bit be set for IO mappings.
    As far as I can tell, this is the only processor that requires this.
    The TLB miss handlers don't currently support this. We would have
    to add support for it in the D miss handler. Since the U bit is
    in an inconvenient location it would require a separate test and
    deposit, making all code pay the penalty of the additional
    instructions. Perhaps we would eventually want to add the U bit
    support anyway, but not all processors support it (the
    PCXS and PCXT processors do not support it).

    2) I really would like to avoid mapping the framebuffer into
    the kernel address space. Perhaps maybe that is not really an
    issue, since after boot the user will bring up X windows and
    the kernel mapping won't actually be actively used (I'm assuming
    that graphics on Linux maps the framebuffer into the user address
    space, but I haven't checked to be sure).

So, if you want to map the cards, I'm not going to oppose that.

John


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The autobuild is turning up some problems like this:

gcc -I/home/pf/dkennedy/linux-2.3/include -D__KERNEL__ -I/home/pf/dkennedy/linux-2.3/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -D__linux__ -pipe -fno-strength-reduce   -c -o on26.o on26.c
{standard input}: Assembler messages:
{standard input}:14413: Error: Field out of range [-8184..8199] (10172).
{standard input}:14413: Error: Field out of range [-8184..8199] (10276).

Does anyone recognise this problem, and if so could they tell me what
the problem is?  This is egcs-2.91.66 according to --version.  All the
files which exhibit this problem are non-essential; this one is in paride.
There's another one in USB, iirc.


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> gcc -I/home/pf/dkennedy/linux-2.3/include -D__KERNEL__ -I/home/pf/dkennedy/linux-2.3/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -D__linux__ -pipe -fno-strength-reduce   -c -o on26.o on26.c
> {standard input}: Assembler messages:
> {standard input}:14413: Error: Field out of range [-8184..8199] (10172).
> {standard input}:14413: Error: Field out of range [-8184..8199] (10276).

could you please send the assembler source generated by gcc -S for this ?
My guess is gcc has problems with very long code sequences and relative
branches.


>From looking at on26.c, it seems to make extensive use of cpp, which might
bloat the code unnecessarily.

	Philipp Rumpf


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From: Frank Rowand <frank_rowand@mvista.com>
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Subject: Re: [parisc-linux] Virtual mapping of IO cards
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Grant Grundler wrote:
> 

< stuff deleted >

> AFAIK, the processor can only HPMC if a LOAD times out.
> What about processor STORE?

Yes, a bad store can HPMC.  The reason for this is that not being able to write
data successfully means that you have possible data corruption (for
example, data that you had expected to be in persistent storage is not there).

< stuff deleted >

> grant
> 
> Grant Grundler

-Frank
-- 
MontaVista Software, Inc
frank_rowand@mvista.com


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Subject: [parisc-linux] Astro / Elroy documentation
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Thanks to many people at Hewlett Packard, we now have
documentation on the Astro and Elroy devices found in some of
the newer PA-RISC machines, such as the C3000 and J5000.  These
documents have been converted to PostScript and are linked from
http://www.thepuffingroup.com/parisc/documentation.html

-- 
Matthew Wilcox <willy@linuxcare.com> Lead Developer, Linux/PA-RISC


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From: Hannu Martikka <martikka@stybba.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/80 - Unexpected Interruption...
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Hei,

I get following on 715/80 with ramdisk.bin-20000129 and latest from CVS
(linux-2.3):

Model: Mirage 80  with 256 MB RAM (Using 128 MB).
CPU(s): 1 x PA7100LC at 80.000000 MHz
...
11. Unknown device (11) at 0xf0200000, versions 0x10, 0x0, 0x8e, 0x0, 0x0

This is probably EISA addon card that I have on this host (X25-card).

...

RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
eth0: 82596 at 0xf0107000, 08 00 09 4A C5 FC IRQ 535.
lasi_82596.c:v1.2 02/13/2000
eth0: lp at 0xc7f8b000 (1716 bytes), lp->scb at 0xc7f8b014
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 850 blocks [1 disk] into ram disk... Unexpected
Interruption! Code=15 regs=c7fe8b80
 IASQ: 00000000 00000000 IAOQ: c0141f1c c0141f20
isr 00000000 ior 00000000

PSW  : 0004ff0a  GR 1 : c7fe8a88  GR 2 : c0164e94  GR 3 : c7fe8b40  
GR 4 : c7fe8a80  GR 5 : c7eb8ec0  GR 6 : 0000000a  GR 7 : 00000400  
GR 8 : c02e7678  GR 9 : 00000319  GR10 : 00000100  GR11 : 00000400  
GR12 : 00000000  GR13 : 00000000  GR14 : 00000000  GR15 : 00000000  
GR16 : 00001000  GR17 : 00000400  GR18 : 00000000  GR19 : c7fe8a90  
GR20 : c02e586c  GR21 : c02e586c  GR22 : 0000000b  GR23 : 00000000  
GR24 : 0000000b  GR25 : c7fe8a98  GR26 : 00000000  GR27 : c01f9000  
GR28 : c02e5800  GR29 : 00000001  GR30 : c7fe8cc0  GR31 : 00000000  
SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000  
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  
IAOQ : c0141f1c c0141f20
IIR  : 0ee01280

Any ideas?

- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


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puffin.external.hp.com may be unreachable for 2 hours starting
at 9PM US Mountain Time due to network maintenance at HP.

	-Paul Bame


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From: Michael Ang <mang@subcarrier.org>
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Subject: [parisc-linux] working kernel image w/sash for A180
Date: Fri, 18 Feb 2000 20:38:27 -0500
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I just put up a new kernel image with sash at
ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/Image-20000218

It's tested on the A180.  Here are the last few lines of output (over
serial console) leading up to the shell prompt:

(end_data) 4000a000
(start_stack) 2001fff8
(brk) 40017000
do_mmap 00000000 00000000 00000028 00000007 00000012 00000000
Stand-alone shell (version 3.4)
500 5 1970 53b
> foo 1073767600, 200205e0

You can type "help" to get a list of commands.

	- Mike.


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From: willy@thepuffingroup.com
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Subject: [parisc-linux] Weekly News [2000/02/18]
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PA-RISC/Linux Weekly News - 18th February 2000
	vol 2, issue 5

This Week

 * News & Announcements
 * This Week's CVS Activity
 * State of the Port Summary

News & Announcements

 * Astro and Elroy docs released
     Thanks to many people at Hewlett Packard, we now have
     documentation on the Astro and Elroy devices found in some of
     the newer PA-RISC machines, such as the C3000 and J5000. These
     documents have been converted to PostScript and are linked from
     http://www.thepuffingroup.com/parisc/documentation.html

 * NFS working
     Martin Petersen posted an NFS-Root howto on the list. If you use
     NFS root, then you don't need to use an initial ramdisk. This
     exercises quite a lot of the kernel, including the TCP/IP layer
     and the ethernet driver.

This Week's CVS Activity

 * The ELF toolchain has received some updates this week. Sammy
   contributed initial support for Linux/PARISC ELF32. Matthew contributed
   some build fixes for HP/UX and David H-D contributed Debian and Red
   Hat build support for x86.

 * John continued his low-level memory-management work by enabling the
   trapping of accidental user pointer dereferences.

 * Grant committed a bug-fix for card-mode DINOs.

State of the Port Summary

 * Kernel
     based on 2.3.42

 * Supported Hardware
    * SCSI, Lan and PS/2 on Lasi I/O controller
    * Dino PCI controller
    * Elroy PCI controller
    * Tulip ethernet
    * PCNet32 ethernet

 * Project Page
     http://www.thepuffingroup.com/parisc/

 * Latest Workable Image
     ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/Image-20000218

 * Running PA-RISC/Linux "recipe"
     http://thepuffingroup.com/parisc/recipe.html

The observant will also notice there have been a few updates to the
website over the past couple of days.  I've fixed some dangling links
and typos.  I've also added some previously missing weekly updates to
the site.

-- 
Matthew Wilcox <willy@linuxcare.com> Lead Developer, Linux/PARISC


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From: David Huggins-Daines <dhuggins@linuxcare.com>
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Subject: Re: [parisc-linux] Weekly News [2000/02/18]
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willy@thepuffingroup.com writes:

>  * The ELF toolchain has received some updates this week. Sammy
>    contributed initial support for Linux/PARISC ELF32. Matthew contributed
>    some build fixes for HP/UX and David H-D contributed Debian and Red
>    Hat build support for x86.

And Alpha - actually someone needs to build an i386 binary package for
Debian.  Note that the Debian build support is in CVS, so you can just
run 'debian/rules build && fakeroot debian/rules binary-arch' from
within a checked-out tree to get a binary package for your
architecture.

Sammy or some other toolchain hacker: can you look at the diff from
the SRPM?  I haven't checked it into CVS because it's a really bad
kludge, but it's needed to compile on Alpha.

As far as I can tell, BFD64 gets defined if either the target *or* the
host is 64-bit.  The assembler and linker code then expects that it is
being built for a 64-bit target, but the build system (rightly) obeys
the arch specification string and only builds elf32 targets in BFD.

-- 
David Huggins-Daines, Senior Linux Consultant, Linuxcare, Inc.
613.562.1239 tel
dhuggins@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 64-bit BARs in 2.3.42 and more
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Hi all,
Appended is a reformatted version of an e-mail exchange with Martin Mares,
the "generic" PCI code owner for linux.  I'm posting this so it (a) gets
archived and (b) more folks are aware of the issues for L-class.

I've split the exchanges into the four topics I started with.
A "fifth" item (SERR/PERR support) came up later.

enjoy!
grant


gg1: Date: Mon, 7 Feb 2000 16:38:58 -0800 (PST)
gg1: Subject: 64-bit BARs in 2.3.42 and more
gg1:
gg1:
gg1: Martin,
gg1: Mathew Wilcox (willy@thepuffingroup.com) encouraged me to write to
gg1: you about the linux-2.3.42 PCI support.  I have some comments/questions
gg1: about the following issues for the PA-Risc port:
gg1: 
gg1: 1) Bugs in NCR/Symbios/Emulex 896 SCSI chip (has 64-bit BARs)
gg1: 2) Differentiating 32-bit from 64-bit BARs in the resource list.
gg1: 3) removing "static" from pci_lock declaration
gg1:    (or better: move the locking into PCI bus adapter code)
gg1: 4) warning about sizing BARs
gg1: 
gg1: 
gg1: FWIW, I worked on HP-UX PCI subsystem for about two years and
gg1: rearchitected the it to support N-class (8-way SMP, 12 4X-PCI slots).
gg1: As a result, I know the HP PCI bus adapters (GSCtoPCI, LBA, EPIC)
gg1: fairly well.  I'm currently helping the puffin group (Alex "puffin"
gg1: Devries, Chris "nym" Beard, Mathew "willy" Wilcox, et al) port
gg1: linux to PA-Risc platforms.
gg1: 
gg1: (Current status is at http://www.thepuffingroup.com/parisc/)

mm1: Date: Tue, 8 Feb 2000 11:15:09 +0100
mm1:
mm1: Hello Grant,
mm1: 
mm1:   Thanks a lot for your comments!

gg2: Date: Tue, 08 Feb 2000 18:51:37 -0800
gg2:
gg2: Martin,
gg2: Welcome!
gg2: and thanks for the quick reply.

mm2: Date: Wed, 9 Feb 2000 12:15:36 +0100
mm2:
mm2: Hello!

============================================================================
gg1: 1) Bugs in NCR/Symbios/Emulex 896 SCSI chip (has 64-bit BARs)
gg1: 
gg1: The 896 SCSI chip has 64-bit BARs. HP's "BIOS" (aka PDC) for N-class
gg1: attempted to program an address into those BARs and it didn't work.
gg1: It turned out HP's "lba" bus adapter behaved slightly different (but
gg1: still with-in PCI spec) than Symbios's PCI emulator/test board. Symbios
gg1: agreed it was a bug in their chip and would roll the chip. But the
gg1: OS has to make sure those devices get assigned a 32-Bit MMIO
gg1: address for 896's shipped in the first systems.
gg1: 
gg1: (FWIW, at the time Symbios didn't have any PC customers which actually
gg1: used a 64-bit MMIO address in their platforms - HP was the first).
gg1: 
gg1: I'd like to discourage putting a kluge in generic pci services to
gg1: accommodate a buggy chip (happened to HP-UX despite my objections).
gg1: I'm thinking the Symbios driver support will need a method (ie interface)
gg1: to deallocate a 64-bit MMIO resource, allocate a 32-bit MMIO resource,
gg1: and reprogram it's BAR.  And I didn't see anything for the first two
gg1: steps which leads me to #2.

mm1:    Unfortunately, during driver startup it's too late to change anything
mm1: - all buses have already been assigned their address ranges and the bridges
mm1: have been programmed accordingly. Also, fixes for devices with buggy
mm1: address decoding (I'm not sure this is the case, but I assume so) should
mm1: be worked around even if their driver is not loaded, so that they don't
mm1: collide with addresses of other devices.

gg2: Ok. PCI Online addition *behind* a bridge can run into the same problem.
gg2: HP-UX has the same weakness. It makes no attempt to reprogram bridges
gg2: either.
gg2: 
gg2: But behind a PCI-PCI bridge, only *one* MMIO range can be assigned. And for
gg2: the 21152 (iirc) that will be a 32-bit MMIO address since that's all the
gg2: bridge can forward. Only *prefetchable* MMIO addresses are 64-bit on the
gg2: DEC bridge which is not suitable for device registers on the Symbios 896.

mm2: You're right, but I would still prefer to do all the broken address
mm2: decode fixups the same way.

mm1:    This leads me to a conclusion that we should really handle it in the
mm1: global PCI fixup (drivers/pci/quirks.c) in similar way to the S3 fixup
mm1: we already do there (i.e., just reset the problematic resources and let
mm1: the architecture specific code assign the right address; here we also
mm1: need to touch the 64-bit flag -- see below).

gg2: Ok. That makes sense. I'll be working on this in the next couple of weeks.
gg2: (pa-risc tree is going through 2.3.42 merge turmoil).


=============================================================================
gg1: 2) Differentiating 32-bit from 64-bit BARs in the resource list.
gg1: 
gg1: pci_resource_flags() only returns one type of MMIO MEM resource:
gg1:   IORESOURCE_MEM.
gg1: This makes it difficult to differentiate between resources which represent
gg1: 64-bit MMIO BARs and resources which represent 32-bit MMIO BARs.
gg1: The code could read the BAR again in order to examine it's flags
gg1: directly but I find that a bit klugey.
gg1: Any interest in adding another flag? IORESOURCE_64BIT?

mm1:   For PCI resources, the lowest 4 bits of resource flags contain the
mm1: usual PCI resource type, so you'll find the 64-bit flag there.

gg2: ok. Sorry I missed that and it's what I was looking for.


=============================================================================
gg1: 3) Removing "static" from pci_lock declaration
gg1: 
gg1: HP PA-Risc boxes typically have more than one PCI bus adapter.
gg1: They could have as many as 12 (eg N-class) and they can be added
gg1: as expansion cards to older machines (ie "card-mode" Dino).
gg1: 
gg1: My impression is the pci_lock serves to avoid collisions between
gg1: processors wishing to access PCI configuration space. Well, Dino
gg1: and LBA have to make multiple register accesses in order to generate
gg1: one configuration cycle. Thus, pci_lock makes the accesses "atomic"
gg1: by serializing access to configuration space.
gg1: 
gg1: The problem is Dino needs to use one of the same registers when
gg1: generating I/O Port space accesses as well.  (Yes - performance sucks
gg1: in this path - HP-UX uses MMIO almost exclusively). And under
gg1: LBA, the outb/d/l path needs to include a read to force the
gg1: write down to PCI bus. In short, pci_lock would work nicely
gg1: to provide syncronization for configuration space *and* I/O port
gg1: space.
gg1: 
gg1: Could the "static" keyword be removed from pci_lock declaration?
gg1: 
gg1: PA-Risc boxes would get a performance benefit if this is taken
gg1: a step further: move PCI syncronization out of generic PCI code
gg1: and into PCI bus adapter code.  Each PA-RISC PCI bus adapter is
gg1: different PCI segment. (Well, except under LBA...but that's
gg1: another story).  Each bus adapter could use it's own spinlock to allow
gg1: independent access to it's PCI segment. PC's could continue to use
gg1: a global pci_lock in their code.
gg1: 
gg1: Could the "pci_lock" syncronization be pushed down to pcibios_xxx
gg1: and pci_read/write_xxx() level?

mm1: When I was designing these functions, I was thinking a lot about what
mm1: the right granularity of locking is and I decided that the configuration
mm1: accesses are not performance critical at all, so it's better to strive
mm1: for simplicity of their locking, not speed. This has lead to a single
mm1: global lock guarding all PCI configuration space operations, not
mm1: depending on whether they really can collide or not.

gg2: Agreed. Only time this might become an issue is on *very* large systems.
gg2: Being able to scan PCI busses in parallel would speed up boot time.
gg2: I'm talking about systems with 100+ PCI slots and dozens of busses.

mm2:  Historically, Linux did scan the whole 64K PCI device ID space by brute
mm2: force and it took a fraction of a second, so it probably doesn't matter.

mm1:    About using the pci_lock for other purposes: I'd rather like to avoid
mm1: overloading the pci_lock with other functions. I/O port accesses should use
mm1: their own lock, even if it makes the pci_lock in fact useless.

gg2: Ok. I'll avoid using pci_lock for platform specific code then.
gg2: 
gg2: I had poked Alan Cox earlier about this and I'm glad I ask you.
gg2: His reply was:
gg2: | >   Alan, could you comment on why drivers/pci/pci.c:pci_lock is static?
gg2: | >   (ie Could the static qualifier be removed in linux-2.3?)
gg2: | 
gg2: | because nobody else needs it (well until you did)
gg2: 
gg2: Several people who saw this reply understood he meant to make pci_lock
gg2: a regular global.


gg1: Along the same line, iomem_resource and ioport_resource should really
gg1: be declared for each PCI bus segment. For PA-Risc, I think it would be
gg1: easiest to fold the MMIO and I/O port resource management into the
gg1: struct pci_bus *pci_root tree. Perhaps they could be parameters
gg1: to pci_scan_bus() like "sysdata".

mm1: Actually, it's already here :-)

gg2: /me rolls his eyes. :^)

mm1: The iomem and ioport resources control global assignment of port and
mm1: memory addresses, but it's perfectly OK to define a set of local
mm1: resources (allocated from the global pool, of course) for a particular
mm1: PCI bus (by making pci_bus->resource[] point to them), the PCI layer
mm1: will use them instead (see pci_find_parent_resource()).

gg2: Ok. Thanks for the clarification. I have to do that for the next parisc
gg2: platform (L-class) I have to write code for. I expect to have code
gg2: published some time in March for that.

mm2: If you want any help, feel free to ask me.


=============================================================================
gg1: 4) warning about pci_read_bases()
gg1: 
gg1: I'm not sure this is a problem for Linux. Just something to avoid.
gg1: The calling tree to get to pci_read_bases() looks like:
gg1: ...
gg1:	pci_scan_bus()
gg1:		pci_do_scan_bus()
gg1:			pci_scan_slot()
gg1:				pci_scan_device()
gg1:					pci_setup_device()
gg1:						pci_read_bases()
gg1:
gg1: I didn't see any tests to make sure pci_scan_bus() wasn't called for
gg1: a given bus already. I did look for other paths and didn't find any.
gg1: (Could be hidden in a macro).
gg1: 
gg1: The problem I'm trying to avoid is pci_read_bases() will temporarily
gg1: disable the device from responding to MMIO or I/O Port accesses.
gg1: There is no mechanism to prevent another processor from attempting
gg1: to access the device (through MMIO at least) and causing the system
gg1: to crash.

mm1:   This should never happen -- we scan the buses only during system boot
mm1:and during insertion of new devices and in both cases no drivers can be
mm1:running for devices on the bus being scanned.

gg2: ok. That's what I suspected but didn't know (and couldn't verify).


gg1: For PCI "On-Line Addition", is only the "slot" rescanned? 
gg1: 
gg1: FWIW, HP-UX platforms allow the _bus_ to be rescanned and was designed
gg1: to support a "smart" expansion chassis which had one bus with
gg1: per-slot power control. The method there was to power-on a new slot
gg1: and then re-scan the entire bus.

mm1:   I plan support for such things for Linux 2.5 -- we already have most
mm1:parts of the hot-plug architecture in the kernel (we use it for CardBus
mm1:devices).

gg2: Ok.
gg2: 
gg2: FWIW, HP's L- and N-class has HW support for PCI OL-A/R (addition/removal).
gg2: And when the OS boots, it has to configure all PCI devices except console
gg2: and boot interface (ie SCSI or 100BT networking). "PDC" (aka BIOS) has
gg2: calls to return resource layouts (irq routing, MMIO available, bus numbers,
gg2: etc). So I'm interested in the 2.5 work once parisc-linux becomes
gg2: self-hosting.

gg1: The solution I implemented in HP-UX is rather obvious: Check if we
gg1: already know about the device in the slot *before* sizing the BARs.
gg1: Not fool proof, but it seems to be working.
gg1: 
gg1: If you have any questions about PA-Risc PCI implementations, it's
gg1: very likely I can answer and would be happy to do so.


=============================================================================
gg2: Last question (for now :^): I didn't see any mention of SERR/PERR command
gg2: bits in the Documentation/pci.txt. Any thoughts on "who" (ie driver/OS
gg2: /BIOS) should be setting/clearing those bits?
gg2: (Similar thoughts on FBB?)
gg2: 
gg2: For parisc platforms, I want to set both bits by default.  Graphics
gg2: and similar adapters which just don't care could clear those bits.
gg2:
gg2: FWIW, one of the HW performance gods here in HP has concluded that FBB
gg2: just isn't that important for our boxes. The improvement was within
gg2: the "noise" level (< ~2%) of what we can measure.

mm2: Currently there exists no support for SERR/PERR in Linux, the main
mm2: reason being that many host bridges don't have any reasonable
mm2: mechanism of reporting such errors to the CPU. The current policy
mm2: is "handle SERR/PERR in machine dependent code, turn errors during
mm2: configuration space accesses to error returns of the access functions
mm2: and just log the other errors without telling the drivers anything".


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Subject: [parisc-linux] libgcc
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I've committed some changes which should allow gcc to build libgcc.a.
Compilation stops when trying to test libgcc:

Testing libgcc1.  Ignore linker warning messages.
/mnt/home/willy/cvs/gcc-build/gcc/xgcc -B/mnt/home/willy/cvs/gcc-build/gcc/ -B/home/willy/gcc/hppa1.1-linux/bin/ -I/home/willy/gcc/hppa1.1-linux/include -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -g -O2  -I./include  libgcc1-test.o -o libgcc1-test \
  -nostartfiles -nostdlib `/mnt/home/willy/cvs/gcc-build/gcc/xgcc -B/mnt/home/willy/cvs/gcc-build/gcc/ -B/home/willy/gcc/hppa1.1-linux/bin/ -I/home/willy/gcc/hppa1.1-linux/include --print-libgcc-file-name`
libgcc1-test.o: In function `main_without__main':
/mnt/home/willy/cvs/gcc-build/gcc/../../gcc/gcc/libgcc1-test.c:20: undefined reference to `$global$'
collect2: ld returned 1 exit status

I don't see $global$ defined anywhere.  Is this something which ld should
be fixing-up and isn't?


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From: Steve Shack <sshack@cln.etc.bc.ca>
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Subject: [parisc-linux] 712 STI support
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Hi,
    Earlier today I was looking at the Openbsd hppa porting page. I
noticed they appear to have support for the STI. I've downloaded the
source and looked at it and it seems that yes. They have some support
for the sti there. So this weeks project for me is getting that going.
They also have floppy/audio going. But STI's a higher priority in my
opinion. If anyone has any problems with this let me know.




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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] libgcc
Date: Tue, 22 Feb 2000 10:12:37 -0500 (EST)
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In-Reply-To: <20000221173452.C9944@thepuffingroup.com> from "willy@thepuffingroup.com" at Feb 21, 2000 05:34:52 pm
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Yes, the HP loader defines this symbol.  It is used to access global
symbols.  If you are using ELF (GNU ld), this may not be defined.  I few
months ago I hacked the milli library to add this to libgcc.a.  However,
it really should be defined by the linker.

Dave

> 
> 
> I've committed some changes which should allow gcc to build libgcc.a.
> Compilation stops when trying to test libgcc:
> 
> Testing libgcc1.  Ignore linker warning messages.
> /mnt/home/willy/cvs/gcc-build/gcc/xgcc -B/mnt/home/willy/cvs/gcc-build/gcc/ -B/home/willy/gcc/hppa1.1-linux/bin/ -I/home/willy/gcc/hppa1.1-linux/include -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -g -O2  -I./include  libgcc1-test.o -o libgcc1-test \
>   -nostartfiles -nostdlib `/mnt/home/willy/cvs/gcc-build/gcc/xgcc -B/mnt/home/willy/cvs/gcc-build/gcc/ -B/home/willy/gcc/hppa1.1-linux/bin/ -I/home/willy/gcc/hppa1.1-linux/include --print-libgcc-file-name`
> libgcc1-test.o: In function `main_without__main':
> /mnt/home/willy/cvs/gcc-build/gcc/../../gcc/gcc/libgcc1-test.c:20: undefined reference to `$global$'
> collect2: ld returned 1 exit status
> 
> I don't see $global$ defined anywhere.  Is this something which ld should
> be fixing-up and isn't?
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: "Thierry SIMONNET" <t.simonnet@esiee.fr>
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Subject: Re: [parisc-linux] 725/50 boot log...
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I've exactly the quite same boot log with my 712/80 with the last version of
linux-2.3 and the 2 last ramdisk.bin.

Thanks for your help

Th. SIMONNET

----- Original Message -----
From: Dominik Kubla <dominik.kubla@uni-mainz.de>
To: <parisc-linux@thepuffingroup.com>
Sent: Tuesday, February 22, 2000 5:29 PM
Subject: [parisc-linux] 725/50 boot log...


> On Tue, Feb 22, 2000 at 07:57:37AM +0100, Dominik Kubla wrote:
> ...
> > They also seem to have WAX support.  We tried to netboot a 725/50 with
> > the latest images from puffin.external yesterday, which went well until
> > loading the ramdisk triggered a bug in block_dev.c (that's what it
> > reported), bootlog to follow later today.
>
> As promised here is the boot log of our attempt with that 725/50.
>
> Yours,
>   Dominik Kubla
> --
> Looking for information about professional american football in Europe?
> Then visit the independant "NFL@Europe Fan Site" at:
>             http://www-klinik.uni-mainz.de/staff/kubla/NFLE/
>


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From: "Brian S. Julin" <bri@mojo.calyx.net>
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Subject: [parisc-linux] NFS root on 715/64
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This almost works... after adjusting the .config that was
given in the instructions to actually include the LASI ethernet
driver :), I get to the IP-Config notice, and if I turn on nfsd's
transfer logging, I can see it mount the root filesystem and transfer
sbin/init, but no output past that and it doesn't transfer sash even
/dev/console.

Now it was mentioned that the serial console was needed to
get a working shell -- has anything actually been hacked up
in the nfsroot images that prevents using the PDC (yes I 
know, it's line-by-line only) because setting up serial 
console will be rather inconvenient for me and plus I'm working
on the HIL stuff anyway so I'll want to have focus on the 
keyboard not ttyS0.

Or, should I be seeing more output as is?

--
Brian S. Julin


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From: willy@thepuffingroup.com
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Subject: Re: [parisc-linux] 725/50 boot log...
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On Tue, Feb 22, 2000 at 05:29:49PM +0100, Dominik Kubla wrote:
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> RAMDISK: ext2 filesystem found at block 0
> RAMDISK: Loading 600 blocks [1 disk] into ram disk... |/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/done.
> kernel BUG at block_dev.c:411!
> kernel BUG at block_dev.c:411!

On the A180, it continues from here:

RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 600 blocks [1 disk] into ram disk... done.
kernel BUG at block_dev.c:411!
kernel BUG at block_dev.c:411!
VFS: Mounted root (ext2 filesystem).
tty_open

(and that's the Image freshly downloaded from the ftp site).
You may wish to try to trace this further yourself...


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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Tulip Driver Bug
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I've been having reliability problems with networking on my J5000.
I tracked the problem down to this piece of code in tulip_interrupt():

    if (--work_budget < 0) {
	    if (tulip_debug > 1)
		    printk(KERN_WARNING "%s: Too much work during an interrupt, "
			       "csr5=0x%8.8x.\n", dev->name, csr5);
	    /* Acknowledge all interrupt sources. */
	    outl(0x8001ffff, ioaddr + CSR5);
	    /* Clear all interrupting sources, set timer to re-enable. */
	    outl(((~csr5) & 0x0001ebef) | AbnormalIntr | TimerInt,
		     ioaddr + CSR7);
	    outl(12, ioaddr + CSR11);
	    break;
    }

My understanding is that this code tries to defer work until later because
too many incoming packets have been handled during the current interrupt.
The problem is that there is no later. Once this code is run I stop
seeing iosapic interrupts, and a little later I get some Tx Hung messages,
one or two more interrupts, and then that is it. The bug may not actually
be in the above code, i.e. it may be in the timer re-enable that is
mentioned in the comment above.

If I ifdef the above code out, the driver is fairly reliable. I've run
tests with more than 20 sockets open simultaneously.

I believe the reason I see this problem more than others is probably due
to the fact that I am running on a fairly high traffic network, so the
machine is seeing a lot more packets. You should be able to reproduce
the problem by reducing the value of max_interrupt_work.

I could continue working on this problem to track it to root cause, but at
this point I would have to spend more time learning the driver and the
tulip hardware.  Perhaps someone with more experience with this driver
could find the problem with less effort.

I haven't tried this on another machine like an A-180 to determine if
the problem is only on iosapic based machines or if the problem is
general to all tulip based lan interfaces.

John Marvin
jsm@fc.hp.com


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John Marvin wrote:

> My understanding is that this code tries to defer work until later because
> too many incoming packets have been handled during the current interrupt.
> The problem is that there is no later.

John,
thanks for bringing it this far.

Can someone verify the IRQ line is remains asserted?

If the IRQ line is asserted, this sounds like a problem in iosapic code.
I've seen this behavior before when iosapic_isr() didn't write the
correct value to the EOI register. I'll review the iosapic code.
But if someone could give me confidence the IRQ is asserted, I'd
appreciate it.

thanks,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] AUI Y-CABLE for 712
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Xref: news.gmane.org gmane.linux.ports.parisc:6870

I have three RS232/LAN (A2263-66536) cards for the 712.
But I can't find the AUI Y-CABLE (A2263-62045) which would
let me (or anyone else) make use of those cards.

Can someone trade me two cables for one card?

thanks,
grant


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From: "Thierry SIMONNET" <t.simonnet@esiee.fr>
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Subject: Re: [parisc-linux] nfsroot howto
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Xref: news.gmane.org gmane.linux.ports.parisc:6871

I have a 712/60 Workstation as NFS server and a 712/80 as parisc-linux box.
I  have some trouble with nfsroot :bootp and tftp process works but
IP-Config says : IP-Config : No Network device available.

Thanks for your help

Th. SIMONNET

----- Original Message -----
From: Martin K. Petersen <mkp@mkp.net>
To: <parisc-linux@puffin.external.hp.com>
Sent: Monday, February 14, 2000 11:34 PM
Subject: [parisc-linux] nfsroot howto


>
> LINUX/PA-RISC NFSROOT HOWTO
>
> (Or how to get to a working shell prompt)
>
>
> YOU NEED:
>
> A fresh linux-2.3 checkout from CVS
>
> The .config included below
>
> puffin.external.hp.com/pub/parisc/binaries/nfsroot/nfsroot-20000214.tar.gz
>
> A supported PA-RISC box with serial console
>
> A Linux (any Unix will do) server with NFS server, bootpd and tftpd
>
>
> Note on consoles:
>
> Yes, you *will* need serial console on the PA-RISC box.  IODC console
> was a quick hack to get output during development, but it will never
> be usable as an interactive console.  When HP releases docs for STI we
> will implement a proper framebuffer console.  Until then, serial is
> the only option.  Sorry.
>
> Futhermore this will only work on boxes with LASI.  I'm still working
> on support for the NS87560UBD Super I/O chip on [BCJ]x000 boxes.
>
>
> STEP 1. KERNEL BUILDING
>
> Get the latest linux-2.3 tree from CVS.
>
>
> a) If you use the standard boot loader
>
> Edit DEFAULT_COMMANDLINE in linux-2.3/arch/parisc/boot/boot_code/ipl_c.c
> to read:
>
> "vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=10.0.0.1"
>
>
> b) If you use PALO
>
> Edit the echo line in palo/mklifimage to read
>
> "vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=10.0.0.1"
>
>
> In both cases replace 10.0.0.1 with the IP address of your NFS server.
>
>
> Copy the .config included below to the root of the linux source tree.
>
> make oldconfig
> make dep
> make clean
> make Image (Or make palo, if you use Paul's loader)
>
> Due to linker issues cross compiling is still not possible.  I.e. you
> have to build on HP/UX.
>
>
> STEP 2. BOOTP, TFTP AND NFS
>
> Copy linux-2.3/arch/parisc/boot/Image (or palo/lifimage) to
> /tftpboot/vmlinux on the server.  Make sure the file is world
> readable.
>
> Edit /etc/bootptab on the server.  I have an entry like this:
>
> mybox:\
>         :hd=/tftpboot:\
>         :bf=vmlinux:\
>         :ht=ether:\
>         :ha=0060b007e4ab:\
>         :sm=255.255.255.0:\
>         :hn:\
>         :ip=10.0.0.6:\
>         :vm=rfc1048:
>
> Replace ``mybox'' with the hostname of your PA-RISC box.
>
> You need to insert the MAC address of the PA-RISC box in the ha=
> field.  You can find the MAC by typing "in la" at the PDC prompt.
>
> You should also change the IP to something appropriate for your LAN.
>
> Add an entry for the host in /etc/hosts.
>
> Unpack the nfsroot tarball in /tftpboot and rename the unpacked
> directory (mybox) to the hostname of your box.
>
> Make sure both bootps and tftp are enabled in /etc/inetd.conf.
>
> Edit your /etc/exports to contain a line like this:
>
> /tftpboot/mybox mybox(rw,no_root_squash)
>
> Again, replace mybox with your hostname.
>
> Restart inetd and nfs services if you made any modifications.
>
>
> STEP 3. GO
>
> Type "bo lan" at the PDC prompt on the PA-box and kapow.  You've got a
> prompt (I hope).
>
> Here's what I get...
>
> ---8<---
>
> Stand-alone shell (version 3.4)
> 500 5 1970 53b
> > -mount -t proc proc /proc
> quux
> quuux
> > -more /proc/cpuinfo
> quux
> quuux
> << cpuinfo >>
> processor       : 0
> cpu family      : PA-RISC <NULL>
> cpu             : PA8000
> cpu MHz         : 160.000000
> cpu category    : category A
> cpu level       : level 0
> cpu shadow regs : no
> model           :
> model name      : Raven U 160 (9000/780/C160)
> sw_id           : 0
> hversion        : 0x00000000
> sversion        : 0x00000000
> I-cache         : 0 KB
> D-cache         : 0 KB (WB)
> ITLB entries    : 0
> DTLB entries    : 0
> BTLB            : not supported
> ---8<---
>
>


----------------------------------------------------------------------------
----


>
> --
> Martin Kasper Petersen BOFH, IC1&2, Aalborg University, DK
> mailto:mkp@SunSITE.auc.dk http://SunSITE.auc.dk/~mkp/
>


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>>>>> "Thierry" == Thierry SIMONNET <t.simonnet@esiee.fr> writes:

Thierry> I have a 712/60 Workstation as NFS server and a 712/80 as
Thierry> parisc-linux box.  I have some trouble with nfsroot :bootp
Thierry> and tftp process works but IP-Config says : IP-Config : No
Thierry> Network device available.

You have to enable Lasi ethernet (CONFIG_APRICOT) on machines with 10
Mbps ethernet onboard (7xx, old B- and C-class).

-- 
Martin Kasper Petersen			BOFH, IC1&2, Aalborg University, DK
mailto:mkp@SunSITE.auc.dk		http://SunSITE.auc.dk/~mkp/


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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: [parisc-linux] Kernel Stack size increase
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I just committed code to change the task structure/kernel stack size from
8K to 16K. Willy asked me to do this after I had mentioned to him that
I had observed that we had already crossed the 6K boundary. 

We may never actually cross the 8K boundary, but I (and willy agrees)
believe that it is not worth risking at this point (a kernel stack overflow
will cause a variety of hard to track problems, since Linux currently does
not have a redzone for kernel stacks).  Later on in the port we can make
more precise measurements to determine what a safe value for the kernel 
stack size should be. There are also other possible designs that could be 
considered.

John Marvin
jsm@fc.hp.com


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Thierry SIMONNET (t.simonnet@esiee.fr) wrote:
| I have a 712/60 Workstation as NFS server and a 712/80 as parisc-linux box. 
| I have some trouble with nfsroot :bootp and tftp process works but 
| IP-Config says : IP-Config : No Network device available. 

Thierry,
I think the problem is you are using HP-UX. :^)
No, really.

I'm pretty sure HP-UX "mknod" creates the special devices *differently*
than parisc-linux wants to interpret them.
HP-UX dev_t is 8 bits Major and 24 bits Minor.
Linux dev_t is 8 bits Major and  8 bits Minor. (according to willy)

Give HP-UX mknod "cooked" parameters in order to create the
special device file linux can use. I might not have cooked
them correctly below....I haven't tried it out yet.

Please try:
o cd /tftpboot/<host>/dev
o rm -f *
o sh mknod.hpux  # appended below

and then try again.

grant


mknod console c 0 0x0501
mknod tty0 c 0 0x0400
mknod tty1 c 0 0x0401
mknod tty2 c 0 0x0402
mknod tty3 c 0 0x0403
mknod tty4 c 0 0x0404
mknod tty5 c 0 0x0405
mknod tty6 c 0 0x0406
mknod tty7 c 0 0x0407
mknod tty8 c 0 0x0408
mknod vcs0 c 0 0x0700
mknod vcs1 c 0 0x0701
mknod vcs2 c 0 0x0702
mknod vcs3 c 0 0x0703
mknod vcs4 c 0 0x0704
mknod vcs5 c 0 0x0705
mknod vcs6 c 0 0x0706
mknod vcs7 c 0 0x0707
mknod vcs8 c 0 0x0708
mknod vcsa c 0 0x0780
mknod vcsa1 c 0 0x0781
mknod vcsa2 c 0 0x0782
mknod vcsa3 c 0 0x0783
mknod vcsa4 c 0 0x0784
mknod vcsa5 c 0 0x0785
mknod vcsa6 c 0 0x0786
mknod vcsa7 c 0 0x0787
mknod vcsa8 c 0 0x0788
 


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Hi folks,
I'm getting a "Code 28" interrupt on my c3000.
I've appended the full console output. 

IOAQ points to ip_rcv+156.
GR02 points to net_bh+620

0xc01ca024 <ip_rcv+156>:        ldw 0(sr0,r4),r25

and GR4 == c7e8702e.
GR4 is aligned on 2byte, not 4 byte which the ldw wants.

I've reproduced the problem in another chunk of code:
0xc01fa82c <ic_bootp_recv+76>:  ldw 0(sr0,r4),r25

In this case: gr4 == c7f7e82e and gr2 == c01ce708 (net_bh+576)


If this code runs on alpha/sparc/mips, I'd think the alignment issues
would have been fixed pretty quickly. I don't think the problem is in
ip_rcv, ic_bootp_recv, or net_bh. I'm also nervous that both cases
died while using gr4.

I did "make clean && make Image" and got the same result.

Could this be a "CONSOLE_XXX" problem?
Other ideas?

thanks,
grant



Firmware Version 3.4

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-1999, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache 
  ---------  --------   ---------------------  -----------------  -------------
      0      400 MHz    Active                 Functional         512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:              536870912 bytes
  Good memory required:           44978176 bytes

  Primary boot path:    FWSCSI.6.0
  Alternate boot path:  LAN.15.8.80.76.3.254
  Console path:         GRAPHICS(2)
  Keyboard path:        USB

CPU 0
WARNING:  Processor self-tests have been disabled because FASTBOOT is
          enabled.  To enable self-tests, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.
WARNING:  Memory has been initialized but not tested because FASTBOOT is
          enabled.  To test memory, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


----- Main Menu -------------------------------------------------------------

      Command                           Description
      -------                           -----------
      BOot [PRI|ALT|<path>]             Boot from specified path
      PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path
      SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices

      COnfiguration [<command>]         Access Configuration menu/commands
      INformation [<command>]           Access Information menu/commands
      SERvice [<command>]               Access Service menu/commands

      DIsplay                           Redisplay the current menu
      HElp [<menu>|<command>]           Display help for menu or command
      RESET                             Restart the system
-----
Main Menu: Enter command > bo alt
Interact with IPL (Y, N, Q)?> n

Booting... 
Network Station Address 001083-360089

System IP Address 15.8.80.75
Server IP Address 15.8.80.76

Boot IO Dependent Code (IODC) revision 2


HARD Booted.

------------------------------------------------------------------------------

PARISC/Linux Bootstrap Version 0.6 (non-interactive)
By Helge Deller & Jason Eckhardt
Built Wed Feb 23 16:49:02 PST 2000 by grundler@rock

Official memory starts at 0000E000
Reading parameters...done.

Loading PA-RISC/Linux Kernel...
SOM-Kernel:
aux_header_location: 00000080
som       : 01000080
exec_dfile: 00172000
exec_dsize: 000FB000
exec_dmem : C0215000
exec_tfile: 0005D000
exec_tsize: 00114008
exec_tmem : C0100000
exec_bsize: 3FCF0030
exec_entry: C0100000
Code at 0x00100000, size=0x00114008
Data at 0x00215000, size=0x000FB000
BSS  at 0x00310000.
exec_entry: C0100000

Transferring control to kernel. (At entry point 0x00100000)
The Kernel has started...
Free memory starts at: 0xc0372000
PALO command line: 'vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.80.76'
FP CCR was 0x0, will be set to 0xc0
model   00005bb0 00000481 00000000 00000002 77cd9463 100000f0 00000008 000000b2 000000b2
vers    00000200
cpuid   00000224
CPUID vers 17 rev 4
Model: AllegroHigh W  with 512 MB RAM (Using 128 MB).
CPU(s): 1 x PA8500 at 400.000000 MHz
Searching for devices in PDC firmware... a newer box...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
2. Elroy PCI Bridge (13) at 0xfed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
3. Elroy PCI Bridge (13) at 0xfed32000, versions 0x782, 0x0, 0xa, 0x0, 0x0
4. Elroy PCI Bridge (13) at 0xfed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
5. Elroy PCI Bridge (13) at 0xfed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. AllegroHigh W  (0) at 0xfffa0000, versions 0x5bb, 0x0, 0x4, 0x0, 0x81
7. AllegroHigh Memory (1) at 0xfed10200, versions 0x86, 0x0, 0x9, 0x0, 0x0
That's a total of 7 devices.
Linux version 2.3.42 (grundler@rock) (gcc version 2.95.2 19991024 (release)) #156 Thu Feb 24 17:08:33 PST 2000
init_bootmem 882 32768
init_bootmem complete
free_bootmem 00373000 07c8d000
d_conf b1802000
pagetable_init
set_pte c1100000 002fb309
miscoloured (c0144570)
set_pte c1100004 002f4309
miscoloured (c0144588)
On node 0 totalpages: 00008000
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
trap_init
Calibrating delay loop... 758.58 BogoMIPS
Memory: 124208k available
kmem_test() - start
kmem_free: Bad front redzone (objp=c7ffe004, name=test-cachep)
kmem_free: Bad rear redzone (objp=c7ffe004, name=test-cachep)
kmem_test() - finished
c7ff0000 c7ff8000 c7fee000 c7ffc000
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
lba version TR2.1 (0x2) found at 0xfed30000
lba_fixup_bus(0xc7fb9540) bus 0 sysdata 0xc7feb0a0
request_irq(258, c0133518, 0x0, iosapic, c7fb8180)
request_irq(259, c0133518, 0x0, iosapic, c7fb81a0)
request_irq(260, c0133518, 0x0, iosapic, c7fb8140)
request_irq(261, c0133518, 0x0, iosapic, c7fb8140)
request_irq(262, c0133518, 0x0, iosapic, c7fb8140)
request_irq(263, c0133518, 0x0, iosapic, c7fb8160)
request_irq(264, c0133518, 0x0, iosapic, c7fb8160)
lba version TR2.1 (0x2) found at 0xfed32000
lba_fixup_bus(0xc7fb95e0) bus 1 sysdata 0xc7feb160
request_irq(265, c0133518, 0x0, iosapic, c7fb83c0)
request_irq(266, c0133518, 0x0, iosapic, c7fb83a0)
request_irq(267, c0133518, 0x0, iosapic, c7fb8380)
lba version TR2.1 (0x2) found at 0xfed38000
lba_fixup_bus(0xc7fb9680) bus 2 sysdata 0xc7feb220
request_irq(268, c0133518, 0x0, iosapic, c7fb85e0)
lba_fixup_bus(0xc7fb9720) bus 3 sysdata 0xc7feb220
request_irq(269, c0133518, 0x0, iosapic, c7fb85c0)
request_irq(270, c0133518, 0x0, iosapic, c7fb85c0)
request_irq(271, c0133518, 0x0, iosapic, c7fb85c0)
request_irq(272, c0133518, 0x0, iosapic, c7fb85c0)
lba version TR2.1 (0x2) found at 0xfed3c000
lba: iosapic_register says not used
Warning : device (13, 0x782, 0x0, 0xa, 0x0) NOT claimed by lba TR2.1
IOA at 0xfed00000
IOS_DIST_BASE   : 000000ff fee00001
IOS_DIST_MASK   : 000000ff ffff0000
IOS_DIST_ROUTE  : 34000000 00000000

IOS_DIRECT_BASE : 000000ff fee00a00
IOS_DIRECT_MASK : 000000ff ffff0000
IOS_DIRECT_ROUTE: 00000000 00000000
lba: lba_bios_init
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
Serial driver version 4.92 (2000-1-27) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
pty: 256 Unix98 ptys configured
eepro100.c:v1.09j 7/27/99 Donald Becker http://cesdis.gsfc.nasa.gov/linux/drivers/eepro100.html
eth0: OEM i82557/i82558 10/100 Ethernet at 0x12100, 08:00:09:DB:18:48, IRQ 769.
  Board assembly 657177-001, Physical connectors present: RJ45
  Primary interface chip DP83840 PHY #1.
  DP83840 specific setup, setting register 23 to 8462.
  General self-test: passed.
  Serial sub-system self-test: passed.
  Internal registers self-test: passed.
  ROM checksum self-test: passed (0xd6a8ca49).
  Receiver lock-up workaround activated.
eepro100.c:v1.09j 7/27/99 Donald Becker http://cesdis.gsfc.nasa.gov/linux/drivers/eepro100.html
Found Digital DS21143 Tulip at PCI I/O address 0x1000.
tulip.c:v0.91g-hppa 7/16/99 becker@cesdis.gsfc.nasa.gov
eth1: Digital DS21143 Tulip rev 48 at 0x1000, 00:10:83:36:00:89, IRQ 514.
eth1:  MII transceiver #1 config 1000 status 782d advertising 01e1.
Found Digital DS21140 Tulip at PCI I/O address 0x38300.
eth2: Digital DS21140 Tulip rev 34 at 0x38300, 00:00:D1:1A:31:BF, IRQ 1024.
eth2:  EEPROM default media type Autosense.
eth2:  MII interface PHY 0, setup/reset sequences 1/1 long, capabilities 78 00.
eth2:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
eth2:  Advertising 01e1 on PHY 0 (0).
eth2: Using media type MII, CSR12 is 00.
eth2:  MII transceiver #1 config 3100 status 7849 advertising 0101.
eth2:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth2:  Advertising 01e1 (to advertise is 01e1).
Found Digital DS21140 Tulip at PCI I/O address 0x38200.
eth3: Digital DS21140 Tulip rev 34 at 0x38200, 00:00:D1:1A:32:22, IRQ 1024.
eth3:  EEPROM default media type Autosense.
eth3:  MII interface PHY 0, setup/reset sequences 1/1 long, capabilities 78 00.
eth3:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
eth3:  Advertising 01e1 on PHY 0 (0).
eth3: Using media type MII, CSR12 is 00.
eth3:  MII transceiver #1 config 3100 status 7849 advertising 0101.
eth3:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth3:  Advertising 01e1 (to advertise is 01e1).
Found Digital DS21140 Tulip at PCI I/O address 0x38100.
eth4: Digital DS21140 Tulip rev 34 at 0x38100, 00:00:D1:1A:31:B9, IRQ 1024.
eth4:  EEPROM default media type Autosense.
eth4:  MII interface PHY 0, setup/reset sequences 1/1 long, capabilities 78 00.
eth4:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
eth4:  Advertising 01e1 on PHY 0 (0).
eth4: Using media type MII, CSR12 is 00.
eth4:  MII transceiver #1 config 3100 status 7849 advertising 0101.
eth4:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth4:  Advertising 01e1 (to advertise is 01e1).
Found Digital DS21140 Tulip at PCI I/O address 0x38000.
eth5: Digital DS21140 Tulip rev 34 at 0x38000, 00:00:D1:1A:31:C4, IRQ 1024.
eth5:  EEPROM default media type Autosense.
eth5:  MII interface PHY 0, setup/reset sequences 1/1 long, capabilities 78 00.
eth5:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
eth5:  Advertising 01e1 on PHY 0 (0).
eth5: Using media type MII, CSR12 is 00.
eth5:  MII transceiver #1 config 3100 status 7849 advertising 0101.
eth5:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth5:  Advertising 01e1 (to advertise is 01e1).
request_irq(769, c01bc8f0, 0x4000000, eth0, c7fb2800)
request_irq(514, c01c2398, 0x4000000, eth1, c7fed800)
eth1: tulip_open() irq 514.
eth1: No media description table, assuming MII transceiver, CSR12 c6.
eth1: Using MII transceiver 1, status 782d.
eth1: interrupt  csr5=0xf0610004 new csr5=0xf0600000.
eth1: interrupt  csr5=0xf0600000 new csr5=0xf0600000.
eth1: exiting interrupt, csr5=0xf0600000.
eth1: Done tulip_open(), CSR0 ffa08000, CSR5 f0660000 CSR6 b20e2002.
eth1: interrupt  csr5=0xf0670004 new csr5=0xf0660000.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
eth1: interrupt  csr5=0xf0670004 new csr5=0xf0660000.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
request_irq(1024, c01c2398, 0x4000000, eth2, c7fed600)
eth2: tulip_open() irq 1024.
eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 0 00077600.
eth1: In tulip_rx(), entry 0 00760700.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
eth2:  Advertising 01e1 on PHY 0 (1).
eth2: Using media type MII, CSR12 is 00.
eth2: Done tulip_open(), CSR0 ffa08000, CSR5 fc670004 CSR6 320e2002.
request_irq(1024, c01c2398, 0x4000000, eth3, c7fed400)
eth3: tulip_open() irq 1024.
eth3:  Advertising 01e1 on PHY 0 (1).
eth3: Using media type MII, CSR12 is 00.
eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 1 20074000.
eth1: In tulip_rx(), entry 1 00400720.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
eth3: Done tulip_open(), CSR0 ffa08000, CSR5 fc670004 CSR6 320e2002.
request_irq(1024, c01c2398, 0x4000000, eth4, c7fed200)
eth4: tulip_open() irq 1024.
eth4:  Advertising 01e1 on PHY 0 (1).
eth4: Using media type MII, CSR12 is 00.
eth4: Done tulip_open(), CSR0 ffa08000, CSR5 fc670004 CSR6 320e2002.
request_irq(1024, c01c2398, 0x4000000, eth5, c7fed000)
eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 2 20077200.
eth1: In tulip_rx(), entry 2 00720720.
eth1: In tulip_rx(), entry 3 00760700.
eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 4 00000080.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
eth5: tulip_open() irq 1024.
eth5:  Advertising 01e1 on PHY 0 (1).
eth5: Using media type MII, CSR12 is 00.
eth5: Done tulip_open(), CSR0 ffa08000, CSR5 fc670004 CSR6 320e2002.
Sending BOOTP requests...<7>eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 4 20079a01.
eth1: In tulip_rx(), entry 4 019a0720.
eth1: In tulip_rx(), entry 5 00400720.
eth1: In tulip_rx(), entry 6 00400720.
eth1: In tulip_rx(), entry 7 00400720.
eth1: In tulip_rx(), entry 8 00760700.
eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 9 00000080.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 9 20074000.
eth1: In tulip_rx(), entry 9 00400720.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
eth1: interrupt  csr5=0xf0670004 new csr5=0xf0660000.
eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 10 20035a01.
eth1: In tulip_rx(), entry 10 015a0320.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 11 20079a01.
eth1: In tulip_rx(), entry 11 019a0720.
eth1: In tulip_rx(), entry 12 00400720.
eth1: In tulip_rx(), entry 13 02320320.
eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 14 00000080.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 14 20079a01.
eth1: In tulip_rx(), entry 14 019a0720.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 15 20079a01.
eth1: In tulip_rx(), entry 15 019a0720.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
.<7>eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 16 20079a01.
eth1: In tulip_rx(), entry 16 019a0720.
eth1: In tulip_rx(), entry 17 00400720.
eth1: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 18 00000080.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.
eth1: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth1: exiting interrupt, csr5=0xf0660000.

Dumping Stack from c7fbc000 to c7fbcb80:
c000 00000000 00000140 00000000 00000000 c02fe1f8 00000001 00000000 ffffffff
c020 00000000 00000014 00000000 00000000 c02156ec 00000000 00000000 c02fc028
c040 c7fa403c c7fa4000 c0218000 00000000 00000000 00000000 00000000 00000000
c060 00000000 00000000 00000001 00000000 00000000 00000000 00000000 c0218000
c080 c0218000 c7fa0000 00000000 00000000 00000000 c036fc24 c7fbc098 c7fbc098
c0a0 c7fbc0a0 c0149c8c c7fbc648 00000000 00000000 00000000 00000000 00000000
c0c0 00000000 00000000 00000000 00000000 00000000 c7fbc000 c014f100 00000000
c0e0 000000b3 00000000 00000000 00000023 00000000 000000d6 00000000 00000000
c100 00000000 00000000 00000000 00000000 80000000 00000000 00000000 00000000
c120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1a0 00000000 00000000 00000000 00000000 00000000 00000000 fffffeff fffffeff
c1c0 ffffffff 00000000 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
c1e0 00800000 ffffffff 00000000 ffffffff ffffffff ffffffff 00000800 00000800
c200 00000400 00000400 ffffffff ffffffff ffffffff ffffffff 00007377 61707065
c220 72000000 00000000 00000000 00000000 00000000 00000000 00000000 c1320f24
c240 f0400004 00000000 ffffffff 00000000 c7ffecc0 c0102f1c f0071898 c7ff0000
c260 c7ff8000 c014b4d0 c014b508 c02ff800 c1320f24 00000000 f0400004 00000000
c280 0004000a 0000003c 0000003e 0000000b c02fe000 00000001 c0313677 c0313677
c2a0 00000000 c012e438 00000023 00000000 0000003c 00000024 c02fe250 f00008c4
c2c0 f000017c f0000174 000000ff 002185c0 0000000d c02f3000 c00003a8 c0313677
c2e0 00000003 00000000 c0214000 00000000 c7fbc3c0 c0136438 c014b4d0 00000000
c300 00000000 00000000 0021c000 c021503c c021504c c02151e8 00000000 00000000
c320 00000000 00000000 00000000 c7fbc328 00000000 00000000 00000000 00000000
c340 00000001 00000000 c7fbc348 c7fbc348 c7fbc350 c0149c8c c7fbc358 00000000
c360 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c380 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c3a0 00000000 00000000 00000000 c0136448 00000000 00000000 00000000 00000000
c3c0 f0071898 c7ff0000 c7fbc000 00000000 c02156ec c0218000 c0218500 00000000
c3e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c400 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c420 00000000 00000000 00000000 c012e45c 00000000 00000000 00000000 00000000
c440 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c460 00000000 00000000 00000000 c012e3fc 00000000 00000000 00000000 00000000
c480 c0218000 c0218500 00000000 00000000 c00003a8 c02fe244 c02fe244 c0122e9c
c4a0 00000000 00000000 00000000 c017f8ac 00000000 00000000 00000000 00000000
c4c0 c0218500 00000000 00000000 c01cc288 f0000a20 c012eecc f0071898 c7ff0000
c4e0 c7fbc000 00000000 c01c9ee0 c01a9258 c0218500 00000000 00000000 00000000
c500 f0071898 c7ff0000 c7fbc000 00000000 c02156ec c0218000 c0218500 c030f0d8
c520 c7ff0000 c7fbc000 00000000 c01ba0f4 c0218000 c0218500 00000000 00000000
c540 c0218000 c0218500 c02156ec c0218000 c0218500 c7ffec20 c0125858 c0128858
c560 c031368e 00000000 c01d006c c01d019c 00000064 0000003c 0000003b c02fe250
c580 c01ceb88 c030b408 c0123fa0 00363000 ffffffff c7ffec20 c036c000 c01ceb88
c5a0 c0363000 c0218500 ffffffff c01facf4 c036c000 c030bb08 00000000 c014b4d0
c5c0 f0400004 00000000 00000249 00000000 c012eecc c02fe000 c01cdbc8 00000001
c5e0 ffffffff c030bc08 c036c000 c01ceb88 c01ceb88 00000001 c0369af0 c0369978
c600 c01ceb88 00008124 03381011 00090057 00000001 00000000 fee08008 c01298f8
c620 00000000 f0000a20 c012eecc c01fab90 159f9abb 461eda97 ffffffff c030bc08
c640 f0400004 00000000 ffffffff 00000000 f0000a20 c0129800 c030e800 000000cc
c660 c030e800 00000001 c030e800 0000000a c02fe800 00000000 c7fbc658 c7fbc658
c680 00000001 c030e800 00000000 c7f3b480 ffffffff ffffffff c01298f9 00000000
c6a0 00000000 00000000 c014b4d0 c014b4d0 00000000 00000000 00000000 00000000
c6c0 0004000b 0004000a c014b4d0 00000000 00000001 00000004 c0313653 c0313655
c6e0 c0313654 00000000 c02fe000 0000000b 0000003e 0000003c 00000001 c02fe250
c700 f00008c4 f000017c f0000174 00000004 07fbc740 00003037 c02f3000 c00003a8
c720 c0313655 00000003 00000000 c0214000 00000000 c0310d00 c7fbc800 c014b4d0
c740 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c760 00000000 00000000 c014b4f8 c014b4fc 00000000 00000000 00000000 0000001f
c780 2b75c000 c7fed000 c036c000 c7f2b000 00000000 00000000 00000000 00000000
c7a0 00000000 00000000 00000000 c01c2378 00000000 00000000 00000000 00000000
c7c0 00012102 f000017c f00008c4 f0400004 00000000 ffffffff 00000000 c010f000
c7e0 c010f000 00000000 c0132208 c01374f8 a5c32800 0000000b c7fff2e8 c7fff2e0
c800 c02fe000 00000000 c0313654 c0313655 c0313653 00000004 00000001 00000000
c820 000000cc c030e800 c0129800 f0000a20 00000000 ffffffff 00000000 f0400004
c840 f00008c4 f000017c f0000174 00000001 00002cc0 00002d00 000000b4 00000001
c860 00000800 00000040 00000000 c012fc10 c7f16900 000000ff c7fbc940 c0205278
c880 00000002 c02f3348 20200000 20000000 00000002 00000102 00000000 00000000
c8a0 00000000 00000000 c012e794 c012e7d4 00000000 0aa92bcd 61202862 0000001f
c8c0 08000240 c6cc0274 b154768d ecee93d5 07d7f11b 8a4c0bc5 b839eca1 821a6616
c8e0 f8aa9072 78e5d0b8 c012faf4 c012fb2c beb24cca 63ace72f 90ae05ac ac07cd1e
c900 c02fe000 c02fe000 00000000 8b00f47c fe5c509e a4b0d0f7 7ed2ded4 36a2a674
c920 fcb21c1f 513e095b c014fe50 c014fe50 5b422e53 00000010 ffffffff 00000000
c940 c02fe250 00000001 0000003c 0000003e 0000000b c7fbc6c0 c02f3324 00000102
c960 c7fbc6c0 c036b000 c036c000 c0370dd4 00000001 c02f3324 00000102 c7fbc6c0
c980 0000000b c7fbc6c0 c02f3324 00000102 c7fbc6c0 c036b000 c036c000 c0370db8
c9a0 00000000 fed30840 c01ce708 c01ce708 0000002d c02fe23c c7fbca80 c014b4d0
c9c0 c0369800 00000800 c030ebb4 c7fa9474 c7fa9400 c030d55c c0369800 c0369800
c9e0 00000806 c030db14 c7f17074 c01cbee4 00000000 00000000 00000000 00000002
ca00 00000800 c030ebb4 c7fa9474 c7fa9400 c030d55c f0660000 c7fed900 c0121994
ca20 00000000 00000000 c012faf4 c01f13c8 00000039 00000000 00000000 00000000
ca40 0006ff0b c030e800 c01ce708 c030e800 c7f7e82e c7fb2800 c030ebb4 c7f17000
ca60 c0369800 c0369800 c02fe800 c030f000 000000d6 c0369c6c c0123800 c0369cac
ca80 c7fbc6c0 f000017c f0000174 0000001b 0000010a 00000000 c01fa7e0 00000000
caa0 c030ebb4 c7fb2800 c7f17000 c0214000 c7f17000 00000007 c7fbcb80 c01ce708
cac0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cae0 00000000 00000000 c01fa82c c01fa830 00000000 c0123800 c0369c6c 00000012
cb00 48990000 00000000 c7f7e82e c7fed800 c7fed800 c7f2aac0 00000000 00000000
cb20 ffffffff ffffffff c014b4d0 c012e7d4 c7fbc800 c02f3324 00000301 00000000
cb40 00000002 0030f580 00000000 0030f4f8 0000000a c02fe000 00000001 c0313679
cb60 c0313679 c0313656 c012faf4 c01376b8 c0313653 c0393800 00000102 c7fbc8c0

Unexpected Interruption!: Code=28 regs=c7fbca40 (Addr=00000000)

PSW  : 0006ff0b  GR 1 : c030e800  GR 2 : c01ce708  GR 3 : c030e800  
GR 4 : c7f7e82e  GR 5 : c7fb2800  GR 6 : c030ebb4  GR 7 : c7f17000  
GR 8 : c0369800  GR 9 : c0369800  GR10 : c02fe800  GR11 : c030f000  
GR12 : 000000d6  GR13 : c0369c6c  GR14 : c0123800  GR15 : c0369cac  
GR16 : c7fbc6c0  GR17 : f000017c  GR18 : f0000174  GR19 : 0000001b  
GR20 : 0000010a  GR21 : 00000000  GR22 : c01fa7e0  GR23 : 00000000  
GR24 : c030ebb4  GR25 : c7fb2800  GR26 : c7f17000  GR27 : c0214000  
GR28 : c7f17000  GR29 : 00000007  GR30 : c7fbcb80  GR31 : c01ce708  
SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000  
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  

IASQ : 00000000 00000000 IAOQ : c01fa82c c01fa830
 IIR : 48990000 ISR : 00000000 IOR : c7f7e82e





Some gdb output
---------------
Dump of assembler code for function ic_bootp_recv:
0xc01fa7e0 <ic_bootp_recv>:     stw rp,-14(sr0,sp)
0xc01fa7e4 <ic_bootp_recv+4>:   addil fa800,dp
0xc01fa7e8 <ic_bootp_recv+8>:   stwm r8,80(sr0,sp)
0xc01fa7ec <ic_bootp_recv+12>:  stw r7,-7c(sr0,sp)
0xc01fa7f0 <ic_bootp_recv+16>:  copy r26,r7
0xc01fa7f4 <ic_bootp_recv+20>:  stw r5,-74(sr0,sp)
0xc01fa7f8 <ic_bootp_recv+24>:  copy r25,r5
0xc01fa7fc <ic_bootp_recv+28>:  stw r3,-6c(sr0,sp)
0xc01fa800 <ic_bootp_recv+32>:  copy r1,r3
0xc01fa804 <ic_bootp_recv+36>:  stw r6,-78(sr0,sp)
0xc01fa808 <ic_bootp_recv+40>:  stw r4,-70(sr0,sp)
0xc01fa80c <ic_bootp_recv+44>:  ldw 3a4(sr0,r3),r19
0xc01fa810 <ic_bootp_recv+48>:  comibf,= 0,r19,0xc01fa9a4 <ic_bootp_recv+452>
0xc01fa814 <ic_bootp_recv+52>:  ldw 24(sr0,r7),r4
0xc01fa818 <ic_bootp_recv+56>:  ldb 6b(sr0,r7),r19
0xc01fa81c <ic_bootp_recv+60>:  comib,=,n 3,r19,0xc01fa9a4 <ic_bootp_recv+452>
0xc01fa820 <ic_bootp_recv+64>:  ldw 60(sr0,r7),r20
0xc01fa824 <ic_bootp_recv+68>:  ldi 1b,r19
0xc01fa828 <ic_bootp_recv+72>:  
    combf,<<,n r19,r20,0xc01fa9a4 <ic_bootp_recv+452>
0xc01fa82c <ic_bootp_recv+76>:  ldw 0(sr0,r4),r25
0xc01fa830 <ic_bootp_recv+80>:  ldil 45000000,r20
...

gr4 = c7f7e82e
gr2 = c01ce708 which is net_bh+576


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Subject: Re: [parisc-linux] code 28 trap
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On Thu, Feb 24, 2000 at 06:59:49PM -0800, Grant Grundler wrote:
> 
> Hi folks,
> I'm getting a "Code 28" interrupt on my c3000.
> I've appended the full console output. 
> 
> IOAQ points to ip_rcv+156.
> GR02 points to net_bh+620
> 
> 0xc01ca024 <ip_rcv+156>:        ldw 0(sr0,r4),r25
> 
> and GR4 == c7e8702e.
> GR4 is aligned on 2byte, not 4 byte which the ldw wants.
> 
> I've reproduced the problem in another chunk of code:
> 0xc01fa82c <ic_bootp_recv+76>:  ldw 0(sr0,r4),r25
> 
> In this case: gr4 == c7f7e82e and gr2 == c01ce708 (net_bh+576)

Uh oh.  We really need a kernel unaligned trap handler.  Some of
the network protocols rely on that being handled right (yes, i know.
it sucks.)  I was about to say `I really don't think this applies to
IP or BOOTP/IP', when I remembered...

http://boudicca.tux.org/hypermail/linux-kernel/2000week06/0092.html

There was a bug in 2.3.41, looks like it didn't get fixed in .42, that
caused things to get unaligned once in a while.  Doh!  Anyone want to
volunteer to write an unaligned trap handler...?


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Willy wrote:

> Uh oh.  We really need a kernel unaligned trap handler.  Some of
> the network protocols rely on that being handled right (yes, I know.
> it sucks.)  I was about to say `I really don't think this applies to
> IP or BOOTP/IP', when I remembered...
> 
> http://boudicca.tux.org/hypermail/linux-kernel/2000week06/0092.html
> 
> There was a bug in 2.3.41, looks like it didn't get fixed in .42, that
> caused things to get unaligned once in a while.  Doh!  Anyone want to
> volunteer to write an unaligned trap handler...?

Years ago I wrote an unaligned load/store emulator (trap handler) for a
port of an evil OS to PA-RISC.  I still have the code -- it would take
a little bit of work to massage it into a real low-level trap handler,
but that task should be very straight-forward.

The code handles both integer and FP loads/stores.  It was written before
the 2.0 architecture, so it definitely needs a little work to recognize and
emulate some of the new 2.0 opcodes (like 64-bit loads/stores, etc).  It
also expects the registers to be saved in a format that is, I'm sure, a
bit different from the Linux save state.  The code is designed to run
in virtual mode, so the "trap 28" handler would have to save all registers,
turn the Q-bit back on and then call the emulation code.  This is somewhat
expensive, but doing it more efficiently is much more complicated (near to
impossible on MP systems).  The problem with doing the emulation directly
in the trap handler (with the Q-bit off) is that its possible for your loads
or stores to cause another page fault (especially if they cross a page
boundary).
PA-RISC doesn't allow "nested" traps.  MP issues make things worse (TLB
entries
can disappear out from under you, etc).

However, emulating unaligned loads/stores is generally NOT a good idea.  The
problem is that there is no way to do the unaligned load/store atomically.
This, of course, can cause big problems in an MP environment depending on
what the code is trying to do.  Its possible to fix the atomicity issue, as
long as all accesses to the data will be unaligned (so that they all have to
go through the trap handler), but this may be overkill.  What have other
architectures (like Alpha) done?

For this networking problem, MP atomicity is probably not an issue.
However,
we should really drive to have the problem fixed.

I'm a little short on time right now, but I'd be glad to give what I've got
to
someone and provide some consulting on how it works/how it needs to be
changed.

Scott Holbrook / rsh@fc.hp.com


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I just realized something:

> Years ago I wrote an unaligned load/store emulator (trap handler) for
> a port of an evil OS to PA-RISC.  I still have the code -- it would take
> a little bit of work to massage it into a real low-level trap handler,
> but that task should be very straight-forward.

The code I have is for PA-RISC running in little-endian mode.  There would
be some additional work to make it bit-endian.

Do you just love endian issues?

Scott Holbrook / rsh@fc.hp.com


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willy@thepuffingroup.com wrote:

> Uh oh.  We really need a kernel unaligned trap handler.  Some of
> the network protocols rely on that being handled right (yes, i know.
> it sucks.)

It really sucks. If any code in the performance path depends on this,
we can forget competing with HP-UX. Misaligned references should be
flagged with "BUG()" or logged we know it's happening.

Thanks for pointing out the problem.
As long as this exists, it seems I can't "boot" on my c3k.

thanks,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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There is also code in the Mach port (mk/kernel/parisc/alignment.c)
Not sure how complete, we only used it for OSF/1 binary compatibility.


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From: Paul Bame <bame@endor.fc.hp.com>
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Subject: Re: [parisc-linux] new binutils/gcc
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Xref: news.gmane.org gmane.linux.ports.parisc:6881


Willy, Sammy,

I've been trying the elf stuff plus Sammy's patches, updated to work
from the current CVS bits.  Here's what I've found so far:

1) this compiler seems to allocate the rp and ret1 registers first
which makes debugging from register dumps worse -- no glancing at r2
to figure out who called ya.

2) I'm seeing death in an infinite loop in flush_instruction_tlb and
it looks as though it's because cache_info has not been initialized yet.

3) We get to start_parisc() but no C procedure calls work from there --
even a local call is failing.  The local call, to address c0114dd4,
generates the following branch:

    c020cbcc:       e5 00 29 38     be,l 49c(sr4,r8)

r8 = 0xc0000000 and sr4 = 0 so I think this branches to a very
bad place.  Another branch to pdc_console_init() generates

    c020cbec:       e5 00 31 30     be,l 898(sr4,r8)

pdc_console_init is at c0101b50 T pdc_console_init

Note that I CHANGED the load address of 0xc0010000 to 0xc0100000 in
vmlinux.lds but I can't see there's a relationship so I'm stumped and
suspect maybe a language system bug which isn't my forte.  Enjoy :-)

The sources I used can be generated by applying the patch
pehc:/tmp/sammy2 to the CVS bits current as of this morning.

	-Paul Bame


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From: Philipp Rumpf <prumpf@inwestnet.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] code 28 trap
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Xref: news.gmane.org gmane.linux.ports.parisc:6882

> > Years ago I wrote an unaligned load/store emulator (trap handler) for
> > a port of an evil OS to PA-RISC.  I still have the code -- it would take
> > a little bit of work to massage it into a real low-level trap handler,
> > but that task should be very straight-forward.
> 
> The code I have is for PA-RISC running in little-endian mode.  There would
> be some additional work to make it bit-endian.
> 
> Do you just love endian issues?

Well, I've got an unaligned handler for another architecture here, the tricky
part is to parse the instructions, and not forget about side-effects of ,M
modifiers.

As for how the code would be run, the most likely way would be to call it
in virtual mode with interrupts disabled and pass in a pointer to a pt_regs
(defined in include/asm/ptrace.h) structure.

	Philipp Rumpf


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From: Philipp Rumpf <prumpf@inwestnet.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] code 28 trap
Date: Fri, 25 Feb 2000 23:03:48 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:6883

> > Uh oh.  We really need a kernel unaligned trap handler.  Some of
> > the network protocols rely on that being handled right (yes, i know.
> > it sucks.)
> 
> It really sucks. If any code in the performance path depends on this,

Another vote for "it sucks".

Which network drivers, protocols aso exactly are you using (and did you
check for the bug Matthew posted an URL for ?) ?  I really don't think
we should write an unaligned handler until we find ourselves using weird
protocols (and hopefully not even then).

	Philipp


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From: Philipp Rumpf <prumpf@inwestnet.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] code 28 trap
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Xref: news.gmane.org gmane.linux.ports.parisc:6884

> http://boudicca.tux.org/hypermail/linux-kernel/2000week06/0092.html
> 
> There was a bug in 2.3.41, looks like it didn't get fixed in .42, that

Apparently it did get fixed in .42, so it might be worth finding out what
exactly causes Grant's unaligned trap.


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From: "William Ferguson" <wferguson@chatspace.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Quadruple postings?
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This is a multi-part message in MIME format.

------=_NextPart_000_004D_01BF7FAA.9C73B5E0
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Can anyone tell me why I receive four of each posting?

 
Cordially yours,
 
William Ferguson
Director of Internet Operations
Chatspace Inc.


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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] code 28 trap
Date: Fri, 25 Feb 2000 17:35:12 -0700 (MST)
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Xref: news.gmane.org gmane.linux.ports.parisc:6886

> > http://boudicca.tux.org/hypermail/linux-kernel/2000week06/0092.html
> >
> > There was a bug in 2.3.41, looks like it didn't get fixed in .42, that
>
> Apparently it did get fixed in .42, so it might be worth finding out what
> exactly causes Grant's unaligned trap.

I'm running on a J5000, which is 99.9% the same as a C3000 if I disable
one of the processors. The only networking problem I've run into
is the one I already posted about, for which I have a workaround. I
have not run into any unaligned traps.

I also do not believe we should do an unaligned trap handler at this
point. Yes, we may have to do one for the non-standard protocols, but
the problem is that once we enable the trap handler, you might hide
a bunch of other performance degrading bugs.

In fact, I would propose that when we do the unaligned handler we
should have a way of enabling it on a per thread basis for user
processes. When I say "enable" I don't mean that we would install/deinstall
the handler, but simply have the handler do a check, and if the fault
came from user space, check the task structure to determine whether
we should fix the fault or terminate the process with a signal.

I believe that the default should be off. If a user doesn't want to
fix the problem (either due to indifference or lack of source), they
should explicitly enable the handler (perhaps by a flag bit in the
elf executable?) so that they know that they will be suffering a
performance penalty.

Of course, I'd like to do something similar for kernel unaligned faults,
i.e. only handle faults for areas where we expect them, but that is
probably not worth the effort. Handling kernel unaligned faults should
be configurable, possibly with the default on. We of course should
leave it off during development, unless we are testing areas of the
kernel that are known to produce unaligned faults, i.e. ones we
have decided not to fix, e.g. some of the networking protocols. One
possible thing we could do would be to enable the unaligned handler
by default, but have it log a message for the first kernel fault
it handles, e.g. "Unaligned fault at 0xxxx, enabling unaligned fault
handler", so at least people can be made aware that there may be
a performance issue.

My overall objective in all of this is to insure that we know of
all the cases where the kernel produces unaligned faults, and make
a conscious decision on whether or not we fix the code, rather than
hide unaligned references. My personal bias is to fix every piece
of code that produces unaligned references, but, based on the
linux-kernel thread that willy mentioned, we might not be able to
convince the maintainer of the code to accept those changes.

John Marvin
jsm@fc.hp.com


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> I'm running on a J5000, which is 99.9% the same as a C3000 if I disable
> one of the processors. The only networking problem I've run into
> is the one I already posted about, for which I have a workaround. I
> have not run into any unaligned traps.

This is another hint that Grant's unaligned trap probably is not network-
related (it might be the network device driver's fault).

> I also do not believe we should do an unaligned trap handler at this
> point. Yes, we may have to do one for the non-standard protocols, but
> the problem is that once we enable the trap handler, you might hide
> a bunch of other performance degrading bugs.

I agree.

> In fact, I would propose that when we do the unaligned handler we
> should have a way of enabling it on a per thread basis for user
> processes. When I say "enable" I don't mean that we would install/deinstall
> the handler, but simply have the handler do a check, and if the fault
> came from user space, check the task structure to determine whether
> we should fix the fault or terminate the process with a signal.

Emulating user space unaligned accesses sounds like a bad idea to me,
unless existing applications assume they can do unaligned accesses and
let the OS handle it.  (and preload a SIGBUS handler for those userspace
applications that want it)

> I believe that the default should be off. If a user doesn't want to
> fix the problem (either due to indifference or lack of source), they
> should explicitly enable the handler (perhaps by a flag bit in the
> elf executable?) so that they know that they will be suffering a
> performance penalty.

LD_PRELOAD is a nicer way to handle that, isn't it ?

> Of course, I'd like to do something similar for kernel unaligned faults,

First, let's try whether we run into unaligned faults in cases other than
the one we know (weird, badly-designed protocols).

> Handling kernel unaligned faults should be configurable, possibly with
> the default on.

I disagree.  Either we accept we will have unaligned accesses, so disabling
them would just generate bogus bug reports;  or we don't, then we want to
see all bug reports caused by them.

> My overall objective in all of this is to insure that we know of
> all the cases where the kernel produces unaligned faults, and make
> a conscious decision on whether or not we fix the code, rather than
> hide unaligned references. My personal bias is to fix every piece
> of code that produces unaligned references, but, based on the
> linux-kernel thread that willy mentioned, we might not be able to
> convince the maintainer of the code to accept those changes.

Just wait until they see the light ... we can fix networking in our tree
should it bother us.

	Philipp Rumpf


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Subject: [parisc-linux] Weekly News [2000-02-25]
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PA-RISC/Linux Weekly News - 25th February 2000

   http://www.thepuffingroup.com/parisc/
       vol 2, issue 6

   This Week:
   News & Announcements
       Status Page
       This Week's CVS Activity
       State of the Port Summary

News & Announcements

     * NFS Root Updated
        Grant updated Martin's NFS root-howto with instructions for
            setting up an HP/UX machine as your NFS server.
     * ELF32 work started
        We're currently playing with ELF32 stuff, trying to get a
            toolchain available to everyone. Once we're happy that the
            toolchain is working well enough, we'll start moving the
            kernel over to ELF.
     * Upcoming non-merge with Linus
        We were planning to merge Linus 2.3.48 into our CVS tree later
            this week, however we've decided to delay until the following
            week to give our tree a chance to settle down with the ELF
            transition and Linus a chance to splat some more
            platform-independent bugs.
     * FAQ
        I've started to maintain a FAQ, referenced from the main webpage.
            It is a little rough for the moment; contributions eagerly
            anticipated.

Status Page
        I'd just like to take this opportunity to remind everyone that we
            have a status page with some unclaimed projects at
            http://www.thepuffingroup.com/parisc/status.html

This Week's CVS Activity
          + More toolchain updates; Matthew checked in a patch to allow
            libgcc1 to build and added the .global directive to gas.
          + We decided to switch to a 16k per-process kernel stack size
            to ensure that we don't have any bugs caused by accidentally
            overrunning the kernel stack. John implemented this.
          + HP/UX compatibility gained a few new syscalls. I guess John
            was bored :-)
          + Grant made the Intel EtherExpress Pro card work.

State of the Port Summary
          + Kernel
               o based on 2.3.42
          + Supported Hardware:
               o SCSI, Lan and PS/2 on Lasi I/O controller
               o Dino PCI controller
               o Elroy PCI controller
               o Tulip ethernet
               o PCNet32 ethernet
               o Intel EEPro ethernet
          + Project Page
               o http://www.thepuffingroup.com/parisc/
          + Latest Workable Image
               o ftp://puffin.external.hp.com/pub/parisc/binaries/kernels
                 /Image-20000218
          + Running PA-RISC/Linux "recipe":
               o http://thepuffingroup.com/parisc/recipe.html



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On Fri, 25 Feb 2000, Paul Bame wrote:

> 
> Willy, Sammy,
> 
> I've been trying the elf stuff plus Sammy's patches, updated to work
> from the current CVS bits.  Here's what I've found so far:
> 
> 1) this compiler seems to allocate the rp and ret1 registers first
> which makes debugging from register dumps worse -- no glancing at r2
> to figure out who called ya.

hmmmmmmm...  did the function prologue stuff change much from the other
parisc compiler?

> 3) We get to start_parisc() but no C procedure calls work from there --
> even a local call is failing.  The local call, to address c0114dd4,
> generates the following branch:
> 
>     c020cbcc:       e5 00 29 38     be,l 49c(sr4,r8)
> 
> r8 = 0xc0000000 and sr4 = 0 so I think this branches to a very
> bad place.  Another branch to pdc_console_init() generates
> 
>     c020cbec:       e5 00 31 30     be,l 898(sr4,r8)
> 
> pdc_console_init is at c0101b50 T pdc_console_init
> 
> Note that I CHANGED the load address of 0xc0010000 to 0xc0100000 in
> vmlinux.lds but I can't see there's a relationship so I'm stumped and
> suspect maybe a language system bug which isn't my forte.  Enjoy :-)

There is, in fact, a relationship there.  r8 isn't set properly at any
time, it's kludged.  r8 needs to be set to 
(load addr of .text) & 0xfff00000.   Basically this is used as a pointer
to the stub table for long branching.  (so, it should be a jump to
0xc010049c, which ought to be a stub for start_parisc())

Yeah, it's kinda ugly...  the linker and crt0.S both need to be
taught about this too.

> The sources I used can be generated by applying the patch
> pehc:/tmp/sammy2 to the CVS bits current as of this morning.


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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [mingo@chiara.csoma.elte.hu: new IRQ scalability changes in 2.3.48]
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I thought this may be of interest.

----- Forwarded message from Ingo Molnar <mingo@chiara.csoma.elte.hu> -----

Delivered-To: thepuffi-willy@thepuffingroup.com
Date: 	Sun, 27 Feb 2000 16:04:13 +0100 (CET)
From: Ingo Molnar <mingo@chiara.csoma.elte.hu>
To: Andrea Arcangeli <andrea@suse.de>
Cc: linux-kernel@vger.rutgers.edu, linux-alpha@vger.rutgers.edu,
        Richard Henderson <rth@cygnus.com>,
        "David S. Miller" <davem@redhat.com>,
        Linus Torvalds <torvalds@transmeta.com>
Subject: new IRQ scalability changes in 2.3.48
In-Reply-To: <Pine.LNX.4.21.0002270501160.473-100000@alpha.random>
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On Sun, 27 Feb 2000, Andrea Arcangeli wrote:

> I ported the SMP irq affinity code and the per-irq-desc locking to alpha
> (plus the ->end semantical change). [...]

here is a summary of all the IA32 IRQ scalability changes which were added
as of 2.3.48, so that other architectures can make sense of these changes
and potentially adopt them:

	- per-IRQ-source spinlocks and per-IRQ-controller spinlocks
	  increasing scalability: now two IRQ handlers on two CPUs
	  can run do_IRQ in parallel. Note that level-triggered PCI IRQ
	  handlers never actually take the IRQ-controller spinlock in the
	  'IRQ handling fast path'.

	- got rid of the global_irq_count shared variable, it was
	  cache-pingponging like hell during multi-CPU interrupt
	  load. The irqs_running() function does it all now - cli()/sti()
	  thus got a bit slower, but it's worth it. The change is supposed
	  to be an invariant otherwise.

	- Reworked (level-triggered) IO-APIC IRQ handlers to never touch
	  the IO-APIC registers and keep the interrupt unacked in the
	  local APIC while the handler is running. This speeded
	  'null IRQ latency' up considerably and also works better with
	  hardware features like focus-CPU, and causes better IRQ
	  atomicity. The 'legacy' edge-triggered IO-APIC IRQ sources
	  still need the slower method to work reliably.

	- per-CPU IRQ statistics causing better cache workload

	- explicit IRQ affinity (to a group of CPUs) can be set through
	  /proc/irq/*. Extended the IRQ controller function template with
	  ->set_affinity(). See Documentation/IRQ-affinity.txt for more.

	- added /proc/irq/prof_cpu_mask, to enable profiling on a single
	  CPU only. (useful to determine the true idleness of a CPU, and
	  other interesting things when using CPU-affine IRQs.)

	- the irq_handler->end() semantics had to be changed slightly to
	  allow the fastest possible IO-APIC IRQ handling on x86.

architectures that are currently using (a hw-adopted version of) the IA32
IRQ architecture are: Alpha, IA64, SH and ARM.

> I checked it works fine here. The sys_dp264 is the only port that
> actively uses SMP irq affinity it (because it's the only one capable
> of SMP irq scaling) and so it's also the only one who currently needs
> lowlevel controller locking. There are also a few common code changes
> (the irq_stat is useless on alpha, on alpha there's a better cpu_data
> smp struct where all the per-cpu things gets allocated) There are a
> few IA32 irq.c cleanups for some 64bit issue. [...]

yep. In 2.5 the IA32 irq.c will probably be moved into kernel/irq.c so
it's important to keep it 64-bit clean. Since there are 11 different
architectures in the main tree now (and 2-3 not yet integrated ones) this
can definitely not happen now, but will be very important to do in 2.5.

Manfred Spraul does have some ideas/patches wrt. per-CPU data structures -
i believe these concepts have to be unified in 2.5 as well (together with
the unification of the irq code). Sparc64 had these per-CPU data
structures for ages.

a related 'SMP-scalability' note: i've implemented a new type of
read-write spinlock which does not cause cacheline pingpong in the read
path (and is thus extremely scalable and cache-friendly), David Miller
added his own ideas and ported it to Sparc - this should show up soon.

	Ingo



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From: "Thierry SIMONNET" <t.simonnet@esiee.fr>
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Subject: Re: [parisc-linux] nfsroot howto
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I have created special devices, but there is the same error. I've set
CONFIG_APRICOT too, without success.

Th. SIMONNET

----- Original Message -----
From: Grant Grundler <grundler@cup.hp.com>
To: <parisc-linux@thepuffingroup.com>
Sent: Friday, February 25, 2000 3:49 AM
Subject: Re: [parisc-linux] nfsroot howto


>
> Thierry SIMONNET (t.simonnet@esiee.fr) wrote:
> | I have a 712/60 Workstation as NFS server and a 712/80 as parisc-linux
box.
> | I have some trouble with nfsroot :bootp and tftp process works but
> | IP-Config says : IP-Config : No Network device available.
>
> Thierry,
> I think the problem is you are using HP-UX. :^)
> No, really.
>
> I'm pretty sure HP-UX "mknod" creates the special devices *differently*
> than parisc-linux wants to interpret them.
> HP-UX dev_t is 8 bits Major and 24 bits Minor.
> Linux dev_t is 8 bits Major and  8 bits Minor. (according to willy)
>
> Give HP-UX mknod "cooked" parameters in order to create the
> special device file linux can use. I might not have cooked
> them correctly below....I haven't tried it out yet.
>
> Please try:
> o cd /tftpboot/<host>/dev
> o rm -f *
> o sh mknod.hpux  # appended below
>
> and then try again.
>
> grant
>
>
> mknod console c 0 0x0501
> mknod tty0 c 0 0x0400
> mknod tty1 c 0 0x0401
> mknod tty2 c 0 0x0402
> mknod tty3 c 0 0x0403
> mknod tty4 c 0 0x0404
> mknod tty5 c 0 0x0405
> mknod tty6 c 0 0x0406
> mknod tty7 c 0 0x0407
> mknod tty8 c 0 0x0408
> mknod vcs0 c 0 0x0700
> mknod vcs1 c 0 0x0701
> mknod vcs2 c 0 0x0702
> mknod vcs3 c 0 0x0703
> mknod vcs4 c 0 0x0704
> mknod vcs5 c 0 0x0705
> mknod vcs6 c 0 0x0706
> mknod vcs7 c 0 0x0707
> mknod vcs8 c 0 0x0708
> mknod vcsa c 0 0x0780
> mknod vcsa1 c 0 0x0781
> mknod vcsa2 c 0 0x0782
> mknod vcsa3 c 0 0x0783
> mknod vcsa4 c 0 0x0784
> mknod vcsa5 c 0 0x0785
> mknod vcsa6 c 0 0x0786
> mknod vcsa7 c 0 0x0787
> mknod vcsa8 c 0 0x0788
>
>
> --------------------------------------------------------------------------

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Subject: Re: [parisc-linux] nfsroot howto
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>>>>> "Thierry" == Thierry SIMONNET <t.simonnet@esiee.fr> writes:

Thierry> I have created special devices, but there is the same
Thierry> error. I've set CONFIG_APRICOT too, without success.

Could you please mail us a log of your boot process and your .config?

The error message indicates that no suitable network device has been
found which the kernel can attempt to bootp from.

-- 
Martin Kasper Petersen			BOFH, IC1&2, Aalborg University, DK
mailto:mkp@SunSITE.auc.dk		http://SunSITE.auc.dk/~mkp/


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From: Philipp Rumpf <prumpf@inwestnet.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [mingo@chiara.csoma.elte.hu: new IRQ scalability changes in 2.3.48]
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Xref: news.gmane.org gmane.linux.ports.parisc:6893

> On Sun, 27 Feb 2000, Andrea Arcangeli wrote:
> 
> > I ported the SMP irq affinity code and the per-irq-desc locking to alpha
> > (plus the ->end semantical change). [...]
> 
> here is a summary of all the IA32 IRQ scalability changes which were added
> as of 2.3.48, so that other architectures can make sense of these changes
> and potentially adopt them:
> 
> 	- per-IRQ-source spinlocks and per-IRQ-controller spinlocks
> 	  increasing scalability: now two IRQ handlers on two CPUs
> 	  can run do_IRQ in parallel. Note that level-triggered PCI IRQ
> 	  handlers never actually take the IRQ-controller spinlock in the
> 	  'IRQ handling fast path'.
> 
> 	- got rid of the global_irq_count shared variable, it was
> 	  cache-pingponging like hell during multi-CPU interrupt
> 	  load. The irqs_running() function does it all now - cli()/sti()
> 	  thus got a bit slower, but it's worth it. The change is supposed
> 	  to be an invariant otherwise.
> 
> 	- Reworked (level-triggered) IO-APIC IRQ handlers to never touch
> 	  the IO-APIC registers and keep the interrupt unacked in the
> 	  local APIC while the handler is running. This speeded
> 	  'null IRQ latency' up considerably and also works better with
> 	  hardware features like focus-CPU, and causes better IRQ
> 	  atomicity. The 'legacy' edge-triggered IO-APIC IRQ sources
> 	  still need the slower method to work reliably.
> 
> 	- per-CPU IRQ statistics causing better cache workload
> 
> 	- explicit IRQ affinity (to a group of CPUs) can be set through
> 	  /proc/irq/*. Extended the IRQ controller function template with
> 	  ->set_affinity(). See Documentation/IRQ-affinity.txt for more.
> 
> 	- added /proc/irq/prof_cpu_mask, to enable profiling on a single
> 	  CPU only. (useful to determine the true idleness of a CPU, and
> 	  other interesting things when using CPU-affine IRQs.)
> 
> 	- the irq_handler->end() semantics had to be changed slightly to
> 	  allow the fastest possible IO-APIC IRQ handling on x86.
> 
> architectures that are currently using (a hw-adopted version of) the IA32
> IRQ architecture are: Alpha, IA64, SH and ARM.

PA-RISC isn't on that list, and shouldn't be.  I had a look at the 2.3 IRQ
code (which begins to claim to be architecture-independent) and it does NOT
adopt well to PA-RISC IMHO.

Still there, are some bits which will definitely be taken over, so this
might be of interest to the Dino, Lasi and other "irq region" drivers:

the irq operations are
	startup
	shutdown

	enable
	disable

	ack
	end

the major difference to what we have now is ack/end instead of mask/unmask.

ack acknowledges the IRQ and masks it
end unmasks the IRQ

We will _definitely_ use the new ops, and a structure similar to struct
hw_interrupt_type in include/linux/irq.h.  The difference is I think it
is still a good idea to pass in a void * (this is the only sensible way
to allow several instances of a irq region device in a system).

The other thing we will be doing is to use a linear array for all IRQs
instead of the two-dimensional struct we have now.  This will cost a bit
of memory at runtime, but it'll get our code closer to what the other
architectures have.

> yep. In 2.5 the IA32 irq.c will probably be moved into kernel/irq.c so
> it's important to keep it 64-bit clean. Since there are 11 different
> architectures in the main tree now (and 2-3 not yet integrated ones) this
> can definitely not happen now, but will be very important to do in 2.5.

IMHO not having an efficient way to pass a client pointer to the IRQ
controller operations will break not only for us, but there's a lot of
time before 2.5 to discuss this and prepare a better version.

	Philipp Rumpf


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From: "MEYER,ALAN C. \(HP-FtCollins,ex1\)" <alan_meyer@hp.com>
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Subject: [parisc-linux] HP-UX application support?
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I have heard several descriptions of what will be supported for HP-UX
applications on 64-bit PA/Linux.

Can someone plz clarify what will be supported:
* 64-bit/ELF HP-UX applications
* 32-bit/SOM HP-UX applications

And, what about the install location of HP-UX shlibs required for these
64-bit (and 32-bit?) HP-UX applications?

Also, I am assuming the install model will be to simply copy files from an
HP-UX system over to a PA/Linux system.  In particular, I have heard of no
plans to support HP-UX packages bundled in "SD" format.  Right?

Thanks, Alan


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Subject: Re: [parisc-linux] HP-UX application support?
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Xref: news.gmane.org gmane.linux.ports.parisc:6895

On Mon, Feb 28, 2000 at 02:14:17PM -0700, MEYER,ALAN C. HP-FtCollins,ex1" wrote:
> I have heard several descriptions of what will be supported for HP-UX
> applications on 64-bit PA/Linux.
> 
> Can someone plz clarify what will be supported:
> * 64-bit/ELF HP-UX applications
> * 32-bit/SOM HP-UX applications

We intend to support both of the above; in addition we also intend to
support 32 bit ELF Linux applications and, eventually, 64 bit ELF Linux
applications.  In case anyone didn't realise it, the current executables
we use are 32-bit SOM HP-UX applications.  Admittedly, the current sash
we have implements `-mount' by calling a linux syscall, but that's only
one command.

Not every application will work, but the vast majority of them will.
Binary support for threaded applications is most unlikely.

> And, what about the install location of HP-UX shlibs required for these
> 64-bit (and 32-bit?) HP-UX applications?

If we use a dynamically linked application, they would need to be placed
in the same location that HP/UX requires them to be.

> Also, I am assuming the install model will be to simply copy files from an
> HP-UX system over to a PA/Linux system.  In particular, I have heard of no
> plans to support HP-UX packages bundled in "SD" format.  Right?

Hmmm.. this is really a userspace problem that we haven't thought
about yet.  I anticipate that the `swinstall' program will work without
much pain and therefore installing .depot files will work.  However,
it wouldn't be the recommended way; packaging products as rpm or dpkg
(depending which distribution we pick) would be the preferred way to go.
There is a program called `alien' which can install other package formats,
extending that to support .depot files might be a fun thing to do for
someone with too much time on their hands :-)


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From: Philipp Rumpf <prumpf@inwestnet.de>
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Subject: Re: [parisc-linux] HP-UX application support?
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> > And, what about the install location of HP-UX shlibs required for these
> > 64-bit (and 32-bit?) HP-UX applications?
> 
> If we use a dynamically linked application, they would need to be placed
> in the same location that HP/UX requires them to be.

We might want to look at the gnemul hack sparc did (include/asm-sparc/namei.h)
- ask the sparc people for their experiences with it first though.


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From: "FINK,MARTIN \(HP-FtCollins,ex1\)" <martin_fink@hp.com>
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Subject: RE: [parisc-linux] HP-UX application support?
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> On Mon, Feb 28, 2000 at 02:14:17PM -0700, MEYER,ALAN C. 
> HP-FtCollins,ex1" wrote:
> > I have heard several descriptions of what will be supported 
> for HP-UX
> > applications on 64-bit PA/Linux.
> > 
> > Can someone plz clarify what will be supported:
> > * 64-bit/ELF HP-UX applications
> > * 32-bit/SOM HP-UX applications
> 
> We intend to support both of the above; in addition we also intend to
> support 32 bit ELF Linux applications and, eventually, 64 bit 
> ELF Linux
> applications.  In case anyone didn't realise it, the current 
> executables

I assume you're referring to 32-bit and 64-bit Intel Linux apps 
recompiled for PA/Linux?

Martin


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willy@thepuffingroup.com wrote:

> > And, what about the install location of HP-UX shlibs required for these
> > 64-bit (and 32-bit?) HP-UX applications?
> 
> If we use a dynamically linked application, they would need to be placed
> in the same location that HP/UX requires them to be.

On HP-UX "SHLIB_PATH" envirment variables helps the dynamic linker
find shared libaries. Something equivalent for linux?

> However,
> it wouldn't be the recommended way; packaging products as rpm or dpkg
> (depending which distribution we pick) would be the preferred way to go.

If we can make .depot installs work, we could pull alot of stuff
from the porting center for starters. And it would also allow folks
to publish binaries for both OS's in a common format. That might not
be interesting to "real" linux hackers. But to folks using HP-UX, it
would make the transition to linux easier.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Xref: news.gmane.org gmane.linux.ports.parisc:6899

On Mon, Feb 28, 2000 at 02:47:45PM -0800, FINK,MARTIN HP-FtCollins,ex1" wrote:
> > On Mon, Feb 28, 2000 at 02:14:17PM -0700, MEYER,ALAN C. 
> > HP-FtCollins,ex1" wrote:
> > > I have heard several descriptions of what will be supported 
> > for HP-UX
> > > applications on 64-bit PA/Linux.
> > > 
> > > Can someone plz clarify what will be supported:
> > > * 64-bit/ELF HP-UX applications
> > > * 32-bit/SOM HP-UX applications
> > 
> > We intend to support both of the above; in addition we also intend to
> > support 32 bit ELF Linux applications and, eventually, 64 bit 
> > ELF Linux
> > applications.  In case anyone didn't realise it, the current 
> > executables
> 
> I assume you're referring to 32-bit and 64-bit Intel Linux apps 
> recompiled for PA/Linux?

I'm referring to applications which are written to the Linux APIs compiled
for either 32 or 64 bit PARISC/Linux/ELF.  I'm reluctant to describe
them as `Intel Linux apps', since they probably run on many other CPU /
OS combinations.  GNOME would be a great example here since it can be
built for many different platforms (including HP/UX, I believe), but most
of its users are probably on the IA32 + Linux platform.  There should
be no substantial differences between the user API between Linux running
on different CPUs.

Pedantry aside, the answer to the question you asked is, `Yes'  :-)


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On Mon, Feb 28, 2000 at 02:55:49PM -0800, Grant Grundler wrote:
> willy@thepuffingroup.com wrote:
> 
> > > And, what about the install location of HP-UX shlibs required for these
> > > 64-bit (and 32-bit?) HP-UX applications?
> > 
> > If we use a dynamically linked application, they would need to be placed
> > in the same location that HP/UX requires them to be.
> 
> On HP-UX "SHLIB_PATH" envirment variables helps the dynamic linker
> find shared libaries. Something equivalent for linux?

We would also use the HP/UX dynamic linker --- I don't want to write
a dynamic SOM linker.  The Linux ld.so uses LD_LIBRARY_PATH (and some
other interesting things -- man 8 ld.so for more details).

> > However,
> > it wouldn't be the recommended way; packaging products as rpm or dpkg
> > (depending which distribution we pick) would be the preferred way to go.
> 
> If we can make .depot installs work, we could pull alot of stuff
> from the porting center for starters. And it would also allow folks
> to publish binaries for both OS's in a common format. That might not
> be interesting to "real" linux hackers. But to folks using HP-UX, it
> would make the transition to linux easier.

I'm not against it, I'm just not terribly excited about it.  I don't know
much about packaging formats and issues people have there.  I guess that
having alien understand depot files is the right approach, but I really
don't know.


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> > Can someone plz clarify what will be supported:
> > * 64-bit/ELF HP-UX applications
> > * 32-bit/SOM HP-UX applications
> 
> We intend to support both of the above; in addition we also intend to
> support 32 bit ELF Linux applications and, eventually, 64 bit 
> ELF Linux applications.  In case anyone didn't realise it, the
> current executables we use are 32-bit SOM HP-UX applications.
> Admittedly, the current sash we have implements `-mount' by
> calling a linux syscall, but that's only one command.

Yeah, I have loosely followed the interesting path taken with the toolchain
to get, eventually, to 64-bit ELF Linux apps.  But, there could be a
difference between what had to be done during development vs. wanting to
support it.  From HP's view, of course, supporting 32-bit SOM HP-UX apps is
great.

On a related note, is there any intention to support development of HP-UX
applications on PA/Linux?  Sure, a gcc cross-compiler could be created for
this.  But, my assumption is that PA/Linux would be a deployment environment
for HP-UX, but NOT a development environment.

> > And, what about the install location of HP-UX shlibs 
> > required for these 64-bit (and 32-bit?) HP-UX applications?
> 
> If we use a dynamically linked application, they would need 
> to be placed in the same location that HP/UX requires them to be.

Yes.  But, it gets stranger than that.  This topic has received lots of
airtime for IA-64 Linux, where x86 Linux apps will be supported.  The
existance of the IA-64 ABI "mandates" some of the rules for that platform,
but there are still some points that could apply here.

Actually, most of the HP-UX application issues should be OK because ... name
and version conflicts for shlibs are not so likely given the different
naming conventions for HP-UX (.sl) and Linux (.so).  This gets rid of many
of the issues IA-64 is dealing with - although /lib and /usr/lib may get
heavily populated.

BTW, you could imagine someone wanting to run both 32- and 64-bit HP-UX
apps.  The convention used by HP-UX shlibs seems to be:

	/usr/lib/libm.sl
	/usr/lib/pa20_64/libm.sl

But, the real problems will arise when supporting both 32- and 64-bit Linux
apps on PA.  I assume you meant that both 32- and 64-bit Linux apps would be
supported on 64-bit PA/Linux.  If not, never mind!  If so, this creates some
fun issues, such as:

* There will be naming conflicts between the 32- and 64-bit shlibs (and for
config files, man pages, etc.).  The RPMs for both the 32- and 64-bit
package will want to install in the same locations.

How to address?  Could create subdirs, such as /lib/32bit/... for the 32-bit
libs.  By mucking with rpm and the Linux loader, this could be addressed OK.
But, still a problem for config files and such.

Have I missed the mark, or aren't there some lurking issues here?

Alan


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Subject: [parisc-linux] glibc 2.2 in cvs
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Ulrich Drepper recommended that we not work on glibc 2.1 but use glibc
2.2 instead.  I've checked a version out of sourceware.cygnus.com and I'm
importing it to puffin.external.hp.com right now.  I'll post a recipe
for building it later (it doesn't build yet for me, but it gets a lot
further than glibc 2.1 did)


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
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Subject: [parisc-linux] make Image fails
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Building the cvs version 20000227 with defconfig fails
with unsatified symbol __cmpdi2.

ld -R 0xc0100000 -N -e stext arch/parisc/real/head.o
arch/parisc/kernel/init_task0.o init/main.o
init/version.o \
        arch/parisc/boot/ramdisk.o
arch/parisc/kernel/kernel.o arch/parisc/real/real.o
arch/parisc/mm/mm.o arch/parisc/hpux/hpux.o
kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o \
        drivers/block/block.a drivers/char/char.o
drivers/net/net.o drivers/pci/pci.a drivers/gsc/gsc.a
\
        net/network.a \
        /usr/src/linux-2.3/arch/parisc/lib/lib.a
/usr/src/linux-2.3/lib/lib.a
/usr/src/linux-2.3/arch/parisc/lib/lib.a \
        -o vmlinux
ld: Unsatisfied symbols:
   __cmpdi2 (code)
make[1]: *** [vmlinux-real] Error 1
make[1]: Leaving directory `/usr/src/linux-2.3'
make: *** [vmlinux] Error 2

I did not find any reference in the source code.
Grepping through object files as well finds a
reference in arch/parisc/hpux/fs.o and hpux.o.

Any ideas ?
Ulrich
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From: "Gyula Matics" <gyula_matics@hp.com>
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Subject: [parisc-linux] zalon
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Hi all,

I'm working on the ncr7xx driver and plan to add support for the
Bluefish GSC SCSI interface. I looked at the Mach kernel and
found that before accessing the c720 it is initializing something
called zalon.

What is that thing? Should one care about it or just blindly do the
same as the Mach kernel does?

Gyula


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I believe Zalon is the chip that drives the f/w scsi on the core io card=

in K series and possible others.

Mike

=2D----Original Message-----
From: gyula_matics@hp.com [mailto:gyula_matics@hp.com]
Sent: Tuesday, February 29, 2000 9:12 AM
To: parisc-linux@thepuffingroup.com
Subject: FW: [parisc-linux] zalon


Hi all,

I'm working on the ncr7xx driver and plan to add support for the
Bluefish GSC SCSI interface. I looked at the Mach kernel and
found that before accessing the c720 it is initializing something
called zalon.

What is that thing? Should one care about it or just blindly do the
same as the Mach kernel does?

Gyula

=2D---------------------------------------------------------------------=
=2D-
=2D--
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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] zalon
Date: Tue, 29 Feb 2000 10:53:05 -0500
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mike_clapper@hp.com wrote:
> 
> I believe Zalon is the chip that drives the f/w scsi on the core io card
> in K series and possible others.

Zalon is really just some glue so you can interface some PC-like
controller chips with GSC.  I think it handles interrupts in a parisc
fashion.

We have no docs, and the only reason I know this is that a little birdy
told me.

- Alex


-- 
Alex deVries, Director of Professional Services, The Puffins at
Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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Xref: news.gmane.org gmane.linux.ports.parisc:6907

On Tue, Feb 29, 2000 at 06:34:16AM -0800, Ulrich Strelow wrote:
> Building the cvs version 20000227 with defconfig fails
> with unsatified symbol __cmpdi2.

[snip]

> I did not find any reference in the source code.
> Grepping through object files as well finds a
> reference in arch/parisc/hpux/fs.o and hpux.o.

__cmpdi2 is one of the `help, help, i don't know how to compile this
arithmetic op' symbols that gcc puts into libgcc1.  Let me have a look
and wee what's producing this.  It may vary depending on gcc version;
what version of gcc are you using?


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From: Andrew Shugg <andrew@neep.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Value of an old K-class server?
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Greetings noble list dwellers,

I have emerged from my long lurk to ask for some help on a vaguely related
issue.  I have my eye on a K200 which has been decommissioned, but the
company won't let go of it until someone ("official") can tell them what
it's worth.  I've been waiting for them to just give up and sell it to me
very cheaply, but I don't want to miss my chance.

The lowest-numbered K class machine I can find on HP's website is a K220.
I'm fairly sure the machine I've looked at is a K200, but if this model
never existed then it's probably a 220.  =)

My understanding is that it has a single CPU, either 128 or 256MB of RAM,
and around 16GB of disk.  It also has in it some kind of cradle or something
for putting more memory into it - something that is (apparently) not usually
included with such a beast.

This is in Australia, but if anyone can name a figure in their local currency
I'll work it out.

When or if I get it, it will be joining my HP 375/125 in helping with testing
for the parisc-linux project, hence the vague relation to this list.  =)

Thanks in advance,

Andrew.

P.S.  A quick attempt with HP's on-line calculator says that a new base-line
      K-class (K360, 1 CPU, 1GB RAM, 9GB disk) would cost AUS$85,000.  Eek.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Value of an old K-class server?
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Xref: news.gmane.org gmane.linux.ports.parisc:6909

On Wed, Mar 01, 2000 at 01:06:47AM +0800, Andrew Shugg wrote:
> The lowest-numbered K class machine I can find on HP's website is a K220.
> I'm fairly sure the machine I've looked at is a K200, but if this model
> never existed then it's probably a 220.  =)

I've just been going through The List of hardware, bashing the hw database
into something more sane.  The K200 did exist, codenamed `Kittyhawk' with
a 100MHz PA7200 CPU in it.  It has an NIO bus in it which is something
we don't have documentation on yet (also known as HP-PB, I think).
The K-class machines probably wont work very soon, but I suspect someone
will eventually get them working.  Mention the cost of getting a support
contract on it if you need to scare management into dropping the price :-)

> When or if I get it, it will be joining my HP 375/125 in helping with testing
> for the parisc-linux project, hence the vague relation to this list.  =)

300 series... aarrrgghh :-)  300/400 series machines are m68k based.
We are sharing their HIL keyboard driver (share in the sense of `copied
and made changes but will merge back later' sense), and Steve Shack
mentioned something about the 300-series STI interface recently.


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From: rob hoppe <hoppe@mindspring.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Value of an old K-class server?
Date: Tue, 29 Feb 2000 13:06:32 -0500
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Andrew Shugg wrote:

> Greetings noble list dwellers,
>
> I have emerged from my long lurk to ask for some help on a vaguely related
> issue.  I have my eye on a K200 which has been decommissioned, but the
> company won't let go of it until someone ("official") can tell them what
> it's worth.  I've been waiting for them to just give up and sell it to me
> very cheaply, but I don't want to miss my chance.
>
> The lowest-numbered K class machine I can find on HP's website is a K220.
> I'm fairly sure the machine I've looked at is a K200, but if this model
> never existed then it's probably a 220.  =)
>
> My understanding is that it has a single CPU, either 128 or 256MB of RAM,
> and around 16GB of disk.  It also has in it some kind of cradle or something
> for putting more memory into it - something that is (apparently) not usually
> included with such a beast.
>
> This is in Australia, but if anyone can name a figure in their local currency
> I'll work it out.
>
> When or if I get it, it will be joining my HP 375/125 in helping with testing
> for the parisc-linux project, hence the vague relation to this list.  =)
>
> Thanks in advance,
>
> Andrew.
>
> P.S.  A quick attempt with HP's on-line calculator says that a new base-line
>       K-class (K360, 1 CPU, 1GB RAM, 9GB disk) would cost AUS$85,000.  Eek.
>
> --
> Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/
>
>   "Just remember Basil, there's always someone worse off than yourself."
>   "Oh, really?  I'd like to meet him ... I could do with a good laugh."
>                  [ Sybil and Basil Fawlty, "Fawlty Towers" ]
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

If you can send the info to troy@flagshiptech.com he can tell you the value in
$US.  The tray you are talking about is a memory carrier.  It is faster with two
memory carriers.  The model number is inside of the door on a label.  If you can
provide the model number on the memory troy can tell you the size.  You can call
troy at 7705698188.  Let him know rob sent you his way.

Rob


--
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
_/                            _/
_/   Rob Hoppe                _/
_/   770-995-5099             _/
_/   770-560-1050 cell        _/
_/   770-338-5885 fax         _/
_/                            _/
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/



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From: "Robert Womack" <rwomack@gatesarrow.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Value of an old K-class server?
Date: Tue, 29 Feb 2000 09:57:41 -0500
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To: "'Andrew Shugg'" <andrew@neep.com.au>, <parisc-linux@thepuffingroup.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:6911

Andrew,

  I too am a lurker in the shadows, but thanks for asking a question for
which I may have part of an answer.  I help HP UNIX salespeople and so have
some resources.

  Value, of course, is what one will pay for something.  In the case of a
K200, the answer is, "Not much."  You may be able to find a broker on the
web who will give you an offer and the offer will be slight.

  If you were purchasing a new HP machine [in the US, naturally], say a
D-Class or cheap L-Class HP would write you a check for $US 1,800 (about
AUS$ 2,900); if you were buying a top K-Class or N-Class, HP would give you
$US 6,000 (about AUS$ 9,250).  In my experience, this is generally no better
than you could get from a broker.

Regards,
              Rob Womack

-----Original Message-----
From: Andrew Shugg [mailto:andrew@neep.com.au]
Sent: Tuesday, February 29, 2000 12:07 PM
To: parisc-linux@thepuffingroup.com
Subject: [parisc-linux] Value of an old K-class server?


Greetings noble list dwellers,

I have emerged from my long lurk to ask for some help on a vaguely related
issue.  I have my eye on a K200 which has been decommissioned, but the
company won't let go of it until someone ("official") can tell them what
it's worth.  I've been waiting for them to just give up and sell it to me
very cheaply, but I don't want to miss my chance.

The lowest-numbered K class machine I can find on HP's website is a K220.
I'm fairly sure the machine I've looked at is a K200, but if this model
never existed then it's probably a 220.  =)

My understanding is that it has a single CPU, either 128 or 256MB of RAM,
and around 16GB of disk.  It also has in it some kind of cradle or something
for putting more memory into it - something that is (apparently) not usually
included with such a beast.

This is in Australia, but if anyone can name a figure in their local
currency
I'll work it out.

When or if I get it, it will be joining my HP 375/125 in helping with
testing
for the parisc-linux project, hence the vague relation to this list.  =)

Thanks in advance,

Andrew.

P.S.  A quick attempt with HP's on-line calculator says that a new base-line
      K-class (K360, 1 CPU, 1GB RAM, 9GB disk) would cost AUS$85,000.  Eek.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]

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From - Thu Nov 08 21:12:00 2018
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From: Michael Ang <mang@subcarrier.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] branching HOW(NOT)TO
Date: Tue, 29 Feb 2000 15:17:57 -0500
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Just a short note on branching.  If you are thinking about creating a
branch, you should know that branching/merging is one of the weakest
parts of CVS.

For branching I would like to establish the following conventions.  For
branch "foo" there will be a static FOO_BASE tag that marks the
beginning of the branch, and development will be done using the
FOO_BRANCH tag.  The static tag is crucial for later merging.

Using all caps is ugly but helps to distinguish between directory names
and tags names on the command line.  (This is a weak protection, but
helps when you're playing with tags at 3am in the morning.)

	- Mike.


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] make Image fails
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--- willy@thepuffingroup.com wrote:
> On Tue, Feb 29, 2000 at 06:34:16AM -0800, Ulrich
> Strelow wrote:
> > Building the cvs version 20000227 with defconfig
> fails
> > with unsatified symbol __cmpdi2.
> 
> [snip]
> 
> > I did not find any reference in the source code.
> > Grepping through object files as well finds a
> > reference in arch/parisc/hpux/fs.o and hpux.o.
> 
> __cmpdi2 is one of the `help, help, i don't know how
> to compile this
> arithmetic op' symbols that gcc puts into libgcc1. 
> Let me have a look
> and wee what's producing this.  It may vary
> depending on gcc version;
> what version of gcc are you using?

I am using gcc version 2.8.1. I must admit that this
is a bit old, but it was sufficient until now to build
parisc-linux kernels (and SOM executables for HP-UX).

Ulrich
__________________________________________________
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From: "Dave O'Neill" <doneill@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New GCC RPMS on the FTP site
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The cross-GCC RPMS for parisc have been updated on the FTP site, as they
didn't get packaged properly the first time.
They are:
	/pub/parisc/binaries/SRPMS/gcc-parisc-20000225-2.src.rpm
	/pub/parisc/binaries/RPMS/gcc-parisc-20000225-2.1386.rpm

Dave
-- 
Dave O'Neill, Linux Consultant, Linuxcare, Inc.
doneill@linuxcare.com, http://www.linuxcare.com/ 
Linuxcare. Support for the revolution.


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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] new binaries
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(lost the original post)

The new S?RPMs of gcc seem to be mode 0600.

Are they to be secret from us? :-)

Matthew.


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On Tue, 29 Feb 2000, Matthew Kirkwood wrote:

> The new S?RPMs of gcc seem to be mode 0600.
> Are they to be secret from us? :-)

Oops... fixed now.

Dave
-- 
Dave O'Neill, Linux Consultant, Linuxcare, Inc.
doneill@linuxcare.com, http://www.linuxcare.com/ 
Linuxcare. Support for the revolution.


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"Gyula Matics" wrote:
> Hi all,
> 
> I'm working on the ncr7xx driver and plan to add support for the
> Bluefish GSC SCSI interface. I looked at the Mach kernel and
> found that before accessing the c720 it is initializing something
> called zalon.
> 
> What is that thing?

It's the chip that allows 53c720 signals to mean something to PA-RISC I/O.
The things I'm aware Zalon chip provides:
o IODC bytes: identify the I/O board as zalon  (ie GSC SCSI)
o EIM register:  used to generate PA interrupt transactions based on
  NCR c720 "pulling" it's IRQ line.
o HPA: hard physical address decoding so firmware can assign an MMIO
  address.

BTW, Bluefish is the EISA form factor of the GSC SCSI card.
I'm pretty sure other form factors exist including for K-class
and "built-in".

> Should one care about it

Yes.

> or just blindly do the same as the Mach kernel does?

Probably not exactly. You want to look at how drivers/gsc/dino.c
uses gsc_alloc_irq() and do something very similar in order
to program the EIM register. AFAIK, Once the Zalon EIM register is
programmed, the c720 chip can be pretty much treated like it's
on a PCI bus *using MMIO*.

The MMIO base address is handed to the parisc-linux device driver in
the struct hp_device *. Again, see dino.c for details.

hope this helps,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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= 
= There is, in fact, a relationship there.  r8 isn't set properly at any
= time, it's kludged.  r8 needs to be set to 
= (load addr of .text) & 0xfff00000.   Basically this is used as a pointer
= to the stub table for long branching.  (so, it should be a jump to
= 0xc010049c, which ought to be a stub for start_parisc())

Don't "be" branches cause a pipeline flush?  It might be faster to
do two "bl" branches instead?

= Yeah, it's kinda ugly...  the linker and crt0.S both need to be
= taught about this too.

Ok, I fixed head.S and interruption.S.  After hacking on vmlinux.lds
and a couple small other things, the elf kernel boots to the point
where I need a ramdisk or NFS root to go further, so that's my plan.
Sources are in CVS with the ELF_BRANCH tag.

Things to do:

    The init_task_union alignment is in both vmlinux.lds and
    is known by setup.c and #defined yet another place.  This ought
    to be cleaned up if possible.

    The init_task_union printf in setup.c should be fixed.

    It's probably time to start using the __setup stuff we hacked
    around for SOM.

    Fix 'make Image' or nuke it.  'make palo' works (for me anyway)

    Sammy said, and I didn't touch these (though others have in the
    main line):

	I guarantee that launching som/elf binaries won't work.  page faulting
	looks messed up somewhere.

	execve() might not work in this one..   I played with the assembler for
	it, but good things never happened, so no changes included.


			-Paul Bame


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willy@thepuffingroup.com wrote:
> On Wed, Mar 01, 2000 at 01:06:47AM +0800, Andrew Shugg wrote:
> > The lowest-numbered K class machine I can find on HP's website is a K220.
> > I'm fairly sure the machine I've looked at is a K200, but if this model
> > never existed then it's probably a 220.  =)
> 
> I've just been going through The List of hardware, bashing the hw database
> into something more sane.  The K200 did exist, codenamed `Kittyhawk' with
> a 100MHz PA7200 CPU in it.  It has an NIO bus in it which is something
> we don't have documentation on yet (also known as HP-PB, I think).
> The K-class machines probably wont work very soon, but I suspect someone
> will eventually get them working.

Think of the K-class as a C-class (eg. C100) with HP-PB instead of EISA.
But forget the HP-PB.  Very few cards are made for it and most are HP
proprietary.  At least all the HP-PB SCSI boards are. The problem is not
getting the cards - getting a device driver will be difficult unless
someone in HP is a masochist and wants to write one. Not me.

Kittyhawks also have GSC "slots". The core I/O board has one "slot" and
the Harrier board has room for 4 more GSC cards.  IIRC, TPG has a dozen
or so gigabit ethernet cards which would fit nicely on a harrier.  I suspect
Andrew was refering to a Harrier board.

I have no clue what the actual value of a K200 is. One should be able to
upgrade the system to something faster than 100Mhz and add CPU's. I'm
just not sure it's worth it. Compare to a C3000 or B1000 before going
that route.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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First of all, thanks to two Robs (Womack and Hoppe), Willy and Grant for
their feedback.  With any luck I'll be able to talk 'em into a cheap deal -
especially seeing as it's costing them a fair whack per month for floor space
rental in a data centre, even though it's switched off ...

Willy also said:

> 300 series... aarrrgghh :-)  300/400 series machines are m68k based.
> We are sharing their HIL keyboard driver (share in the sense of `copied
> and made changes but will merge back later' sense), and Steve Shack
> mentioned something about the 300-series STI interface recently.

I'm a bit confused by this.  I thought the HP 375 was a PA-RISC thingy.
Certainly there have been numerous people on this list talking about getting
their 315's or whatever to boot the parisc-linux kernel.

Had me a look at the HW database, and it says the 375 carries a 'PA7000'
processor.  (As a side note, the link for this in the database,
"http://216.208.98.4/view.php3?type=cpu&name=PA7000 (PCX-S)", made my proxy
server unhappy.  Dropping the " (PCX-S)" off the end of it helped.)

Is a PA7000 not a PA-RISC chip?

Showing my ignorance,

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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> I'm a bit confused by this.  I thought the HP 375 was a PA-RISC thingy.
> Certainly there have been numerous people on this list talking about getting
> their 315's or whatever to boot the parisc-linux kernel.
	
I assume you are talking about an HP 735/125 and 715 which are PA-RISC.
An HP 375 is a 33Mhz mc68030 box.  An HP 315 was, lets see..., a 25Mhz
68020 I think.


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Xref: news.gmane.org gmane.linux.ports.parisc:6923

In addition, A K200 has a PA7200 microprocessor.

-----Original Message-----
From: Robert Womack [mailto:rwomack@gatesarrow.com]
Sent: Tuesday, February 29, 2000 4:04 PM
To: 'Andrew Shugg'; 'parisc-linux@thepuffingroup.com'
Subject: RE: [parisc-linux] Value of an old K-class server?


Andrew,

   The PA7000 is indeed a PA-RISC microprocessor, a 32biter.  The series
that begin with 8 (PA8n00) are the 64bit types.

Regards,
            rob womack

-----Original Message-----
From: Andrew Shugg [mailto:andrew@neep.com.au]
Sent: Tuesday, February 29, 2000 6:49 PM
To: parisc-linux@thepuffingroup.com
Subject: Re: [parisc-linux] Value of an old K-class server?


First of all, thanks to two Robs (Womack and Hoppe), Willy and Grant for
their feedback.  With any luck I'll be able to talk 'em into a cheap deal -
especially seeing as it's costing them a fair whack per month for floor
space
rental in a data centre, even though it's switched off ...

Willy also said:

> 300 series... aarrrgghh :-)  300/400 series machines are m68k based.
> We are sharing their HIL keyboard driver (share in the sense of `copied
> and made changes but will merge back later' sense), and Steve Shack
> mentioned something about the 300-series STI interface recently.

I'm a bit confused by this.  I thought the HP 375 was a PA-RISC thingy.
Certainly there have been numerous people on this list talking about getting
their 315's or whatever to boot the parisc-linux kernel.

Had me a look at the HW database, and it says the 375 carries a 'PA7000'
processor.  (As a side note, the link for this in the database,
"http://216.208.98.4/view.php3?type=cpu&name=PA7000 (PCX-S)", made my proxy
server unhappy.  Dropping the " (PCX-S)" off the end of it helped.)

Is a PA7000 not a PA-RISC chip?

Showing my ignorance,

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]

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Subject: RE: [parisc-linux] Value of an old K-class server?
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Andrew,

   The PA7000 is indeed a PA-RISC microprocessor, a 32biter.  The series
that begin with 8 (PA8n00) are the 64bit types.

Regards,
            rob womack

-----Original Message-----
From: Andrew Shugg [mailto:andrew@neep.com.au]
Sent: Tuesday, February 29, 2000 6:49 PM
To: parisc-linux@thepuffingroup.com
Subject: Re: [parisc-linux] Value of an old K-class server?


First of all, thanks to two Robs (Womack and Hoppe), Willy and Grant for
their feedback.  With any luck I'll be able to talk 'em into a cheap deal -
especially seeing as it's costing them a fair whack per month for floor
space
rental in a data centre, even though it's switched off ...

Willy also said:

> 300 series... aarrrgghh :-)  300/400 series machines are m68k based.
> We are sharing their HIL keyboard driver (share in the sense of `copied
> and made changes but will merge back later' sense), and Steve Shack
> mentioned something about the 300-series STI interface recently.

I'm a bit confused by this.  I thought the HP 375 was a PA-RISC thingy.
Certainly there have been numerous people on this list talking about getting
their 315's or whatever to boot the parisc-linux kernel.

Had me a look at the HW database, and it says the 375 carries a 'PA7000'
processor.  (As a side note, the link for this in the database,
"http://216.208.98.4/view.php3?type=cpu&name=PA7000 (PCX-S)", made my proxy
server unhappy.  Dropping the " (PCX-S)" off the end of it helped.)

Is a PA7000 not a PA-RISC chip?

Showing my ignorance,

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]

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Subject: Re: [parisc-linux] Value of an old K-class server?
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On Wed, Mar 01, 2000 at 07:48:49AM +0800, Andrew Shugg wrote:
> I'm a bit confused by this.  I thought the HP 375 was a PA-RISC thingy.
> Certainly there have been numerous people on this list talking about getting
> their 315's or whatever to boot the parisc-linux kernel.

Do you perhaps mean the 735 and 715?

> Had me a look at the HW database, and it says the 375 carries a 'PA7000'
> processor.  (As a side note, the link for this in the database,
> "http://216.208.98.4/view.php3?type=cpu&name=PA7000 (PCX-S)", made my proxy
> server unhappy.  Dropping the " (PCX-S)" off the end of it helped.)

This is a bug which we fixed earlier this afternoon (that should have
been `%20' instead of the space character).  There are still pending
changes to the hw database that will make it closer to being correct.
At least the PA8000/8200/8500 chips should be correct (there may be
omissions, but there should not be incorrect chips in those categories).

> Is a PA7000 not a PA-RISC chip?

Yes, it is.  To complicate matters, there are PA7000 CPUs which implement
the PA1.0 architecture (PCX) and PA7000 CPUs which implement the PA1.1
architecture (PCX-S).  The intention is to support the latter and not
the former.

> Showing my ignorance,

Less than a year ago, I didn't know the difference between a PA1.0 and
PA1.1 machine :-)


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Value of an old K-class server?
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willy@thepuffingroup.com wrote:
> 
> On Wed, Mar 01, 2000 at 01:06:47AM +0800, Andrew Shugg wrote:
> > The lowest-numbered K class machine I can find on HP's website is a K220.
> > I'm fairly sure the machine I've looked at is a K200, but if this model
> > never existed then it's probably a 220.  =)
> 
> I've just been going through The List of hardware, bashing the hw database
> into something more sane.  The K200 did exist, codenamed `Kittyhawk' with
> a 100MHz PA7200 CPU in it.

I don't know these servers, but I've a friend who deals machines of about
that generation, buying them in truckload lots and reselling. Recent
prices from him, in Canadian $:

         RAM	disk	monitor	quantity
712/60   128	no	no	16	$ 50 apiece.
715/100  256    no      19"     1	$200


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Subject: [parisc-linux] Performance
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 Hello, 
  I know this is off topic for the kernel but I'd like to say a little. 

 I have a 715/50 and it's been churning along with HP-UX 9.0 (not Y2K so
HP says) It's been running setiathome as is a P166 Intel and I'm actually
impressed by the math power of that 50mhz chip it outpermes the P166 about
3% . 
 Just thought a few would like to know.

 One other thing I got a 715/75 and it's framebuffer is not 1024x768 as is
the 715/50 any suggestions as to what it might be. 
Thanks 
Terry



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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] __asm__
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Grant was asking where to find documentation on __asm__, and I think
this is useful to enough people that it's worth posting here.

__asm__ is a gcc extension.  It allows you to write inline assembler in
your C source file rather than forcing you to write a separate function
in a .S file and call it.  The original documnetation can be found by
typing `info gcc' (make sure you have the gcc info files installed
or you'll just get the manpage).  Follow the menus: `C Extensions',
``Extended Asm'.  I find the documentation pretty obscure, and I have
to think very carefully every time I write an __asm__ statement.


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From: Philipp Rumpf <prumpf@inwestnet.de>
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Subject: Re: [parisc-linux] __asm__
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> __asm__ is a gcc extension.  It allows you to write inline assembler in
> your C source file rather than forcing you to write a separate function
> in a .S file and call it.  The original documnetation can be found by
> typing `info gcc' (make sure you have the gcc info files installed
> or you'll just get the manpage).  Follow the menus: `C Extensions',
> ``Extended Asm'.  I find the documentation pretty obscure, and I have
> to think very carefully every time I write an __asm__ statement.

info '(gcc) Extended Asm' if you don't want to search for it.

The documentation definitely isn't very good, so I would propose to write
to the list whenever you need an asm statements and aren't sure how
exactly to do it (most likely you don't even need the asm statement).

	Philipp


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On Tue, Feb 29, 2000 at 01:32:39PM -0500, mike_clapper@hp.com wrote:


You sent your mail as RTF for some reason -- I managed to read it, but I
can't reply to it properly.

The problem you are experiencing is because the recipe you read is wrong.
It needs to be updated to reflect reality :-)

I'll add a section detailing which repositories contain what, something
along these lines:

binutils	Binutils 2.9 including hppa-linux (ELF)
binutils-old	Old Binutils
boot_code	?
boot_tools	?
egcs-old	Old EGCS 1.1.2, implementing SOM hppa-linux
gcc		EGCS 2.9 including hppa-linux (ELF)
glibc		GNU C Library including hppa-linux
linker		HP SOM linker
linux		Linux 2.2.  Obsolete, no longer in development.
linux-2.3	Linux 2.3.  Current development branch.
minilibc	A smaller libc which was easier to get going initially.
palo		PA/Linux boot loader.
userspace	Some small userspace utilities
website		The source for http://www.thepuffingroup.com/parisc/


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From: "Brian S. Julin" <bri@mojo.calyx.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] make Image currently fails here too.
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My unsatisfied symbols are different, though:

ld: Unsatisfied symbols:
   fcacheline (code)
   pcacheline (code)

--
Brian S. Julin



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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] sba_io_pdir_entry()
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Philipp Rumpf wrote:
> The documentation definitely isn't very good, so I would propose to write
> to the list whenever you need an asm statements and aren't sure how
> exactly to do it (most likely you don't even need the asm statement).

Ok. Let's try it.

I'm working on the code which generates/writes the I/O Pdir entry
for the "sba" I/O Pdir. It will be called for every physical page
which needs to be mapped for DMA.

Here are some constraints:
o I'd like to have as much of this in 'C' as possible without
  compromising performance.
o This code will probably only be called from two (maybe four)
  locations that are variants of the performance path.
o Will only be executed on PA2.0 processor - could be running
  in narrow or wide mode (ie 32 or 64-bit kernel binary).

I haven't read the "info gcc" stuff yet.
But here's what I've cooked up so far:

/*
* SBA Mapping Routine
*
* Given a virtual address (vba, arg2) and space id, (sid, arg1)
* init_io_pdir_entry() loads the I/O PDIR entry pointed to by
* pdir_ptr (arg0). Each IO Pdir entry consists of 8 bytes as
* shown below (MSB == bit 0):
*
*  0                    19                                 51   55       63
* +-+---------------------+----------------------------------+----+--------+
* |V|        U            |            PPN[43:12]            | U  |   VI   |
* +-+---------------------+----------------------------------+----+--------+
*
*  V  == Valid Bit
*  U  == Unused
* PPN == Physical Page Number
* VI  == Virtual Index
*
* The physical address fields are filled with the results of the LPA
* instruction.  The virtual index field is filled with the results of
* of the LCI (Load Coherence Index) instruction.  The 8 bits used for
* the virtual index are bits 12:19 of the value returned by LCI.
*
* We need to pre-swap the bytes since PCX-W is Big Endian.
*/

void __inline__ sba_io_pdir_entry(u64_t *pdir_ptr, space_t sid, void *vba)
{
        register u64_t tmp;

        mtsp(sid,1);
        __asm__("lpa (%sr1,%1),%0"      /* Load the physical address */
                : "=r" (tmp) : "r" (vba));

        tmp &= ~0xfffUL;                /* clear page offset bits */

        __asm__( "depdi 0x1,0,1,%0"             /* Set enable bit */
                "lci (%sr1, %1),%r29\n\t"       /* Load coherent index */
                "extru %r29,19,8,%r29\n\t"      /* right shift coherent index */
                "depd %r29,63,8,%0"             /* insert coherent index */

                : "=&r" (tmp)   /* output */
                : "r" (vba) /* input */
                : "r29" /* side effects? */
                )

        *pdir_ptr = cpu_to_le64(tmp);   /* swap and store into I/O Pdir */
}


Side note: should "space_t" be "unsigned long" or does parisc-linux
define something already for space ID's?

I would prefer not to assume space ID is always zero or something else
hard coded.

thanks,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] nfsroot howto
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One more update for HP-UX impaired folks (like me)

"Martin K. Petersen" wrote:
...
> Unpack the nfsroot tarball in /tftpboot and rename the unpacked
> directory (mybox) to the hostname of your box.

[ Just a reminder to find my previous update regarding HP-UX
  vs linux mknod. I still don't know for sure what I posted
  is correct. ]

...
> Make sure both bootps and tftp are enabled in /etc/inetd.conf.
> 
> Edit your /etc/exports to contain a line like this:
> 
> 	/tftpboot/mybox		mybox(rw,no_root_squash)
> 
> Again, replace mybox with your hostname.
> 
> Restart inetd and nfs services if you made any modifications.

Here's the /etc/exports contents on my HP-UX NFS server:
/tftpboot/turin         -rw=turin,root=turin

where "turin" is the nfsroot client. turin has an entry in /etc/hosts.

Then as root, "exportfs -av" will actually export those file systems.
When rebooting the nfs server, this will automatically be done.

and when I booted the parisc-linux workstation (turin=15.8.80.75):

...
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 15.8.80.76, my address is 15.8.80.7515.8.80.75
...

One problem less.

later,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Paul Bame <bame@endor.fc.hp.com>
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Subject: Re: [parisc-linux] make Image currently fails here too.
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= 
= My unsatisfied symbols are different, though:
= 
= ld: Unsatisfied symbols:
=    fcacheline (code)
=    pcacheline (code)

That code doesn't get much maintenance these days.  The usual cause of
failures is that code using headers from the palinux tree which define
macros which call functions which aren't part of that boot loader.

	-P


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From: Kirk Bresniker <kirkb@chrome.rose.hp.com>
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Subject: Re: [parisc-linux] make Image currently fails here too.
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Brian,

| 
| My unsatisfied symbols are different, though:
| 
| ld: Unsatisfied symbols:
|    fcacheline (code)
|    pcacheline (code)
| 

I ran into this yesterday, and in poking around with Bonsai, I believe
that this is because sammy's net/drivers/lasi_82596.c code includes
calls to these macros to do the cacheline flushes and purges, but prumpf
removed their definitions from include/asm-parisc/cache.h.

KMB
--
+============================================================+
|       Kirk Bresniker    	(916) 748-2393		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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From: Paul Bame <bame@endor.fc.hp.com>
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Subject: [parisc-linux] ELF32 kernel
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It ain't perfect, but the ELF32 kernel booted with an NFS root, ran
sash and fork/exec-ed hellow.  Networking didn't work well on a busy
LAN booting on a B180, dunno why, but it worked great on a c360.  I
checked in a defconfig per willy's suggestion and all the other changes
are in CVS too on the branch ELF_BRANCH.

There's a problem when I enable CONFIG_PROC_FS where devinet_init()
calls register_sysctl_table() with a ctl_table containing a char*
pointer (for ->procname) containing the value 0x20, which eventually
dies in strlen() at a lower level.  The code in devinet_init *may*
be interacting with the __init/__setup stuff we kludged around for SOM.
Maybe a someone who knows this code can take a look at this?

	-Paul Bame


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Xref: news.gmane.org gmane.linux.ports.parisc:6937

> My unsatisfied symbols are different, though:
> 
> ld: Unsatisfied symbols:
>    fcacheline (code)
>    pcacheline (code)

That's the (buggy IMHO) Lasi ethernet driver that uses strange custom
macros to flush the cache rather than the standard ones.  Basically

#define fcacheline(x) dma_cache_wback(&x, 32)
#define pcacheline(x) dma_cache_inv(&x, 32)

_might_ make it compile again.


It alse uses phys_to_virt/virt_to_phys rather than bus_to_virt/virt_to_bus
and generally needs to be fixed for the new DMA API soon.  If you're
happy just using a ramdisk, don't compile it in.

	Philipp Rumpf


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From: Philipp Rumpf <prumpf@inwestnet.de>
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> /*
> * SBA Mapping Routine
> *
> * Given a virtual address (vba, arg2) and space id, (sid, arg1)
> * init_io_pdir_entry() loads the I/O PDIR entry pointed to by
> * pdir_ptr (arg0). Each IO Pdir entry consists of 8 bytes as
> * shown below (MSB == bit 0):
> *
> *  0                    19                                 51   55       63
> * +-+---------------------+----------------------------------+----+--------+
> * |V|        U            |            PPN[43:12]            | U  |   VI   |
> * +-+---------------------+----------------------------------+----+--------+
> *
> *  V  == Valid Bit
> *  U  == Unused
> * PPN == Physical Page Number
> * VI  == Virtual Index
> *
> * The physical address fields are filled with the results of the LPA
> * instruction.  The virtual index field is filled with the results of
> * of the LCI (Load Coherence Index) instruction.  The 8 bits used for
> * the virtual index are bits 12:19 of the value returned by LCI.
> *
> * We need to pre-swap the bytes since PCX-W is Big Endian.
> */
> 
> void __inline__ sba_io_pdir_entry(u64_t *pdir_ptr, space_t sid, void *vba)
> {
>         register u64_t tmp;
		  ^^^^^^
u64, not u64_t, please

>         mtsp(sid,1);

>         __asm__("lpa (%sr1,%1),%0"      /* Load the physical address */
>                 : "=r" (tmp) : "r" (vba));
> 
>         tmp &= ~0xfffUL;                /* clear page offset bits */
> 
>         __asm__( "depdi 0x1,0,1,%0"             /* Set enable bit */
>                 "lci (%sr1, %1),%r29\n\t"       /* Load coherent index */
>                 "extru %r29,19,8,%r29\n\t"      /* right shift coherent index */
>                 "depd %r29,63,8,%0"             /* insert coherent index */
> 
>                 : "=&r" (tmp)   /* output */
>                 : "r" (vba) /* input */
>                 : "r29" /* side effects? */
>                 )

asm("lpa (%sr1, %1), %0", "=r" (pa), "r" (vba));
asm("lci (%sr1, %1), %0", "=r" (ci), "r" (vba));

pa &= ~4095;
ci = (ci >> 10) & 255;

tmp = (ci<<foo) | (pa<<bar);

sounds better to me.

> Side note: should "space_t" be "unsigned long" or does parisc-linux
> define something already for space ID's?

unsigned long should be fine.

> I would prefer not to assume space ID is always zero or something else
> hard coded.

We want to map IO space to userspace, so the version above is all right
(it's a bit careful, but it shouldn't waste any performance).

	Philipp


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Making, drinking tea and reading an opus magnum from T. Martin:
>  Hello, 
>   I know this is off topic for the kernel but I'd like to say a little. 
> 
>  I have a 715/50 and it's been churning along with HP-UX 9.0 (not Y2K so
> HP says) It's been running setiathome as is a P166 Intel and I'm actually
> impressed by the math power of that 50mhz chip it outpermes the P166 about
> 3% . 
>  Just thought a few would like to know.
> 
>  One other thing I got a 715/75 and it's framebuffer is not 1024x768 as is
> the 715/50 any suggestions as to what it might be. 
1280x1024 (;
or maybe just some other vsync freq?
cu

-- 
    paranoic mickey       (my employers have changed but, the name has remained)


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Michael Shalayeff wrote:

> Making, drinking tea and reading an opus magnum from T. Martin:
> >  Hello,
> >   I know this is off topic for the kernel but I'd like to say a little.
> >
> >  I have a 715/50 and it's been churning along with HP-UX 9.0 (not Y2K so
> > HP says) It's been running setiathome as is a P166 Intel and I'm actually
> > impressed by the math power of that 50mhz chip it outpermes the P166 about
> > 3% .
> >  Just thought a few would like to know.
> >
> >  One other thing I got a 715/75 and it's framebuffer is not 1024x768 as is
> > the 715/50 any suggestions as to what it might be.
> 1280x1024 (;
> or maybe just some other vsync freq?
> cu

Some of the puffins helped me out on this when I first got my 712. If you press tab
while booting up it will cycle through the videomodes.
It might not work on a 715 i'm not sure. But if it does cycle through untill you
find a usable videomode. (many were there but very fuzzy, in the end 1024x768 was
the ONLY one that worked even half way decent.)



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Subject: Re: [parisc-linux] Value of an old K-class server?
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willy@thepuffingroup.com said:
> On Wed, Mar 01, 2000 at 07:48:49AM +0800, Andrew Shugg wrote:
> > I'm a bit confused by this.  I thought the HP 375 was a PA-RISC thingy.
> > Certainly there have been numerous people on this list talking about getting
> > their 315's or whatever to boot the parisc-linux kernel.
> 
> Do you perhaps mean the 735 and 715?

Ahah - brilliant!  This indeed what I meant.  Thanks.

> > Is a PA7000 not a PA-RISC chip?
> 
> Yes, it is.  To complicate matters, there are PA7000 CPUs which implement
> the PA1.0 architecture (PCX) and PA7000 CPUs which implement the PA1.1
> architecture (PCX-S).  The intention is to support the latter and not
> the former.
> 
> Less than a year ago, I didn't know the difference between a PA1.0 and
> PA1.1 machine :-)

Okay.  =)  Is it clear at this point what is definitely going to be supported
(even if it doesn't work now), and what will _never_ be supported?  (ie,
basically, what has 1.0 and what has 1.1?)

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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> Date: Thu, 2 Mar 2000 21:02:12 +0800
> From: Andrew Shugg <andrew@neep.com.au>
> To: parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] Value of an old K-class server?
> 
> Okay.  =)  Is it clear at this point what is definitely going to be supported
> (even if it doesn't work now), and what will _never_ be supported?  (ie,
> basically, what has 1.0 and what has 1.1?)
> 

Your 715 and 735 should be fairly easy to support, even if they aren't one
of the current active development platforms.  They are 1.1 machines with
fairly "stock" off-the-shelf IO components very similar or identical to
some of the machines that are being worked on.

The "hard" machines will be 1.0 based machines (due to lack of architectural
features such as shadow registers and block TLBs that are probably assumed to
exist by the Linux code) and those with the different IO architectures
(CIO and NIO-based).  Note that the latter can be 1.1 (or 2.0?) based
machines, so you cannot just say that 1.1 machines will work.

Note that I speak not as an active developer of Linux, but as someone who
worked on Mach/BSD on these machines.  So believe the Puffin people more
than me!  They have a lot more resources available then we did, so things
might not be as hard for them.


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On Thu, Mar 02, 2000 at 09:02:12PM +0800, Andrew Shugg wrote:
> Okay.  =)  Is it clear at this point what is definitely going to be supported
> (even if it doesn't work now), and what will _never_ be supported?  (ie,
> basically, what has 1.0 and what has 1.1?)

Well, I'm glad you asked me that :-)

I've just spent a fair bit of time, with Dave Kennedy's help, updating the
PARISC Hardware Database.  If you click on the `PA-7000 (PCX)' link under
`CPU types', you'll see that Stan Sieler is going to be disappointed that
he hung on to his 834, but his 705 will work nicely as it's a PA-7000
(PCX-S).


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Re:

> `CPU types', you'll see that Stan Sieler is going to be disappointed that
> he hung on to his 834, but his 705 will work nicely as it's a PA-7000
> (PCX-S).

We keep the 9000/834 as our HP-UX 10.10 test machine...
last year, it was turned on for about 10 days (out of 365).  
This year, we haven't turned it on yet :)

No...I don't intend to run Linux on it...too slow!

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html          www.allegro.com/sieler


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From: "Gyula Matics" <gyula_matics@hp.com>
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Subject: [parisc-linux] lasi scsi driver
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It's only half working. It can list the devices on the bus, but that's all.

It is not working because it needs a horrible amount of cache flushing
and I still didn't get it right. (the committed code only contains enough
flushing to pass the two debugging tests)

The scsi card is running code that is in the main memory and the driver
is heavily patching that. The bigger problem is that the communication
with the card is done via a mailbox also residing in the main memory
and the driver is assuming that this mailbox is on a non-cacheable page.

I know that the architecture supports setting a page non-cacheable.
My question is if it is possible / good idea to set the mailbox page
to non-cacheable?

Gyula
ps: if you hack 53c7xx.c beware that many comments are misleading.
and generally it is a mess.


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"Gyula Matics" wrote:
> It's only half working. It can list the devices on the bus, but that's all.
> 
> It is not working because it needs a horrible amount of cache flushing
> and I still didn't get it right. (the committed code only contains enough
> flushing to pass the two debugging tests)

Aside from the mailbox problems, have you added code to flush/purge
entries for payload data?

I was just talking about that with someone and thinking we could
put that in a "common" I/O path. I found "wakeup_bdflush()" but have
no clue what that does.

The goal here is to enable *all* SCSI disk drivers WRT to the payload data.
We are interested in getting PCI SCSI drivers working too and I know
this is going to be a problem. At least it's a problem until the
"Dynamic DMA mapping" interfaces are implemented for parisc-linux
and actually used by the drivers parisc-linux folks care about.


> The scsi card is running code that is in the main memory and the driver
> is heavily patching that. The bigger problem is that the communication
> with the card is done via a mailbox also residing in the main memory
> and the driver is assuming that this mailbox is on a non-cacheable page.
> 
> I know that the architecture supports setting a page non-cacheable.
> My question is if it is possible / good idea to set the mailbox page
> to non-cacheable?

Philipp Rumpf mentioned a possible implementation to me in a private
e-mail (make_page_uncached()). He's open to other ideas and/or
interfaces if another architecture has already solved this problem.
I started looking into this but I'm way outta my depth here.

Like the payload data, this is a kluge only needed until the
drivers use the new "Dynamic DMA mapping" interfaces described
in Documentation/DMA-mapping.txt. (I reccomend version 2.3.47
or newer). We should be able to hide the "(make_page_uncached()"
call in those interfaces from the drivers.

thanks,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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= There's a problem when I enable CONFIG_PROC_FS where devinet_init()
= calls register_sysctl_table() with a ctl_table containing a char*
= pointer (for ->procname) containing the value 0x20, which eventually
= dies in strlen() at a lower level.

Actually CONFIG_PROC_FS works, but CONFIG_SYSCTL doesn't, for the
reason above, so I changed defconfig to reflect this.

I tracked the problem down to what appears to be a compiler
bug, in that the devinet_sysctl_table struct in net/ipv4/devinet.c
works well until you try to generate a pointer to the last 'ctl_table'
element inside that struct.  This pointer value is bogus, leading to
the misbehavior described above.  I can make the problem move around
by inserting fields in the struct, so it appears that gcc can't generate
valid pointers to members past a certain struct size.

This could also be a difficulty for SOM folks who use the compiler
from CVS on puffin.external.hp.com and who configure kernels including
networking.

I'm out of my depth hacking gcc.

	-Paul Bame


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From: morrison@southwind.net
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Subject: [parisc-linux] Help! can't get serial console on 715/75
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I recently acquired several HP 700 series boxes, and am not able to 
get into a serial console on a 715/75.  I did not get any monitors with 
them.  I have been able to get a serial console up on a 715/100, and 
on a 735/125, so the serial setup is known to work, but the 715/75 
boxes simply will not respond.  I have disconnected the graphics 
card, with no change.  I do have HIL keyboards, but have not been 
able to set the console to rs232 working blind.  Suspecting secure 
mode was on, I disconnected all drives and attempted to set secure 
off blind, to no avail.

Any help appreciated, additional info available if it will help

Marc Morrison
would-be HP user


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> Aside from the mailbox problems, have you added code to flush/purge
> entries for payload data?

It is not a clean mailbox system. It is mixing data and commands in the
mailbox...

> > I know that the architecture supports setting a page non-cacheable.
> > My question is if it is possible / good idea to set the mailbox page
> > to non-cacheable?
> 
> Philipp Rumpf mentioned a possible implementation to me in a private
> e-mail (make_page_uncached()). He's open to other ideas and/or
> interfaces if another architecture has already solved this problem.

The driver was originally written for m68k and one can find this code
fragments in it:

    cache_push(virt_to_phys((void *)(instance->hostdata[0])), 8192);
    cache_clear(virt_to_phys((void *)(instance->hostdata[0])), 8192);
    kernel_set_cachemode(instance->hostdata[0], 8192, IOMAP_NOCACHE_SER);

> in Documentation/DMA-mapping.txt. (I reccomend version 2.3.47

OK, i'll read it.

Gyula


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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Subject: [parisc-linux] Lasi Ethernet - update
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Hi puffins & folks,

I just checked in an updated version of the LASI ethernet-driver, which helps me
to boot my 715/64 into root-nfs and sash...
The code needs more cleanup, but I thought it is better to commit it now, so
other people can at least use it.

In order to get the driver working I wrote own functions for dma_cache_wback()
and dma_cache_inv(), which needs generic clean-up and should of course go
into another source-file (cache.c ?). Phillipp, maybe you want to integrate
them properly ?

During the tests here, it seems, that the current kernel doesnt handle
ARP-requests properly. When I ping one of the machines, the 715 segfaults at
once with:
  "Unexpected Interruption!: Code=31 regs=..... (Addr=0000000)"
Does this happen on other machines/netcards too ?


Regards,

Helge Deller.


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Hi,

Am Thu, 02 Mar 2000 schrieb Gyula Matics:
> > Aside from the mailbox problems, have you added code to flush/purge
> > entries for payload data?
> 
> It is not a clean mailbox system. It is mixing data and commands in the
> mailbox...
> 
> > > I know that the architecture supports setting a page non-cacheable.
> > > My question is if it is possible / good idea to set the mailbox page
> > > to non-cacheable?
> > 
> > Philipp Rumpf mentioned a possible implementation to me in a private
> > e-mail (make_page_uncached()). He's open to other ideas and/or
> > interfaces if another architecture has already solved this problem.
> 
> The driver was originally written for m68k and one can find this code
> fragments in it:
> 
>     cache_push(virt_to_phys((void *)(instance->hostdata[0])), 8192);
>     cache_clear(virt_to_phys((void *)(instance->hostdata[0])), 8192);
>     kernel_set_cachemode(instance->hostdata[0], 8192, IOMAP_NOCACHE_SER);

Theese function (in the same order) was used in the lasi-ethernet-driver too.
Maybe you want to take a look at the functions dma_cache_inv() and
dma_cache_wback(), which I defined  at the top of the lasi_82596.c driver.
Currently this is really only a bad hack, but I think this is the way you could
go until make_page_uncached() is available.... ?
This means:
cache_push() -> dma_cache_wback()   and
cache_clear() -> dma_cache_inv().
I just added this hack, since currently dma_cache_inv() is defined as
flush_all_caches(), and this function doesnt INVALIDATES the cache.

> 
> > in Documentation/DMA-mapping.txt. (I reccomend version 2.3.47
> 
> OK, i'll read it.
> 
> Gyula

Helge.


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From: Bdale Garbee <bdale@gag.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Lasi Ethernet - update
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In article <00030302170400.19213@P100> you wrote:

> During the tests here, it seems, that the current kernel doesnt handle
> ARP-requests properly. When I ping one of the machines, the 715 segfaults at
> once with:
>   "Unexpected Interruption!: Code=31 regs=..... (Addr=0000000)"
> Does this happen on other machines/netcards too ?

For what it's worth, I have no problem pinging my A180 running a kernel I 
built with the bits that were current in CVS yesterday booted with NFS root.

Bdale


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Lasi Ethernet - update (fixed!)
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Am Fri, 03 Mar 2000 schrieb Bdale Garbee:
> In article <00030302170400.19213@P100> you wrote:
> 
> > During the tests here, it seems, that the current kernel doesnt handle
> > ARP-requests properly. When I ping one of the machines, the 715 segfaults at
> > once with:
> >   "Unexpected Interruption!: Code=31 regs=..... (Addr=0000000)"
> > Does this happen on other machines/netcards too ?
> 
> For what it's worth, I have no problem pinging my A180 running a kernel I 
> built with the bits that were current in CVS yesterday booted with NFS root.
> 
> Bdale

Hi Bdale,

Thanks for your response. 
I found the bug in the lasi-ethernet driver, so it works now ! The problem
was, that the kernel crashed right after going to user-mode, and so I assumed
that it was a general kernel-related problem and not related to the
lasi-ethernet-driver.

This is fixed now in CVS. People, who have older machines are now able
to boot the kernel via nfsroot.

Helge.


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Xref: news.gmane.org gmane.linux.ports.parisc:6954

On Thu, Mar 02, 2000 at 01:19:40PM -0800, Grant Grundler wrote:
> I was just talking about that with someone and thinking we could
> put that in a "common" I/O path. I found "wakeup_bdflush()" but have
> no clue what that does.

that's the kernel demon which writes dirty pages to disk and has nothing
to do with flushing caches, unfortunately.


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From: "Rajiv Dighe" <rdighe@nortelnetworks.com>
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Subject: [parisc-linux] Trouble booting 712/80
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Hi,

    HP newbie here. I just acquired a 712/80 with 96mb ram & 1gb hdd. I am
looking forward to helping with linux port effort as soon as I can get HP/UX
10.20 installed on this darn machine. so far it refuses t o boot from
cd-rom. cd-rom is seen as a result of search command issued at boot-admin
prompt but 'boot scsi.5' just returns me back to boot_admin promt after
about 5 seconds. boot rom version is 1.6. All I know is that this machine
was set for netbooting. any ideas?

--Rajiv
PS: both cd-rom & media are known & proven to be good. other 712s have been
installed using same drive/media.
---------------------------------------
NetID Group
Nortel Networks
613-798-4914
---------------------------------------



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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trouble booting 712/80
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"Rajiv Dighe" wrote:
> Hi,
> 
>     HP newbie here. I just acquired a 712/80 with 96mb ram & 1gb hdd. I am
> looking forward to helping with linux port effort as soon as I can get HP/UX
> 10.20 installed on this darn machine. so far it refuses t o boot from
> cd-rom. cd-rom is seen as a result of search command issued at boot-admin
> prompt but 'boot scsi.5' just returns me back to boot_admin promt after
> about 5 seconds. boot rom version is 1.6. All I know is that this machine
> was set for netbooting. any ideas?

Two things:
1) If you are planning on cold installing the box, I'd reccomend HP-UX
   11.x (preferably 9910 release) as that's what the tool chains are
   being tested with. 10.20 should work too but you know....

2) iirc, The latest rev of 712 firmware is v2.3.
   Can some other HP person comment on if we can post the upgrade
   tools on the web for 712/715/et al?
   (The risk is someone will blow away their firmware with an image
   for the wrong box and blame HP).

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: "Rajiv Dighe" <rdighe@nortelnetworks.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trouble booting 712/80
Date: Fri, 3 Mar 2000 13:15:08 -0500
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Grant,

     I do have firmware image 2.3 on a tape for this machine...same problem
though...how can I boot using that image if this machine won't let me boot??
I will try to setup netbooting environment this weekend..but not even sure
if that will work...

--Rajiv
---------------------------------------
NetID Group
Nortel Networks
613-798-4914
---------------------------------------

----- Original Message -----
From: "Grant Grundler" <grundler@cup.hp.com>
To: "Dighe, Rajiv (R.) [EXCHANGE:CANOI:IO47]" <rdighe@americasm01.nt.com>
Cc: "parisc-linux" <parisc-linux@thepuffingroup.com>
Sent: Friday, March 03, 2000 12:48 PM
Subject: Re: [parisc-linux] Trouble booting 712/80


> "Rajiv Dighe" wrote:
> > Hi,
> >
> >     HP newbie here. I just acquired a 712/80 with 96mb ram & 1gb hdd. I
am
> > looking forward to helping with linux port effort as soon as I can get
HP/UX
> > 10.20 installed on this darn machine. so far it refuses t o boot from
> > cd-rom. cd-rom is seen as a result of search command issued at
boot-admin
> > prompt but 'boot scsi.5' just returns me back to boot_admin promt after
> > about 5 seconds. boot rom version is 1.6. All I know is that this
machine
> > was set for netbooting. any ideas?
>
> Two things:
> 1) If you are planning on cold installing the box, I'd reccomend HP-UX
>    11.x (preferably 9910 release) as that's what the tool chains are
>    being tested with. 10.20 should work too but you know....
>
> 2) iirc, The latest rev of 712 firmware is v2.3.
>    Can some other HP person comment on if we can post the upgrade
>    tools on the web for 712/715/et al?
>    (The risk is someone will blow away their firmware with an image
>    for the wrong box and blame HP).
>
> grant
>
> Grant Grundler
> Unix Development Lab
> +1.408.447.7253


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trouble booting 712/80
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"Dighe, Rajiv (R.) [EXCHANGE:CANOI:IO47]" wrote:

>     HP newbie here. I just acquired a 712/80 with 96mb ram & 1gb hdd. I am
> looking forward to helping with linux port effort as soon as I can get HP/UX
> 10.20 installed on this darn machine. so far it refuses t o boot from
> cd-rom. cd-rom is seen as a result of search command issued at boot-admin
> prompt but 'boot scsi.5' just returns me back to boot_admin promt after
> about 5 seconds. boot rom version is 1.6. All I know is that this machine
> was set for netbooting. any ideas?

Is the CD-ROM drive external?  If so, try connecting another device
between the CD-ROM and the scsi port.  I remember something squirelly
about the 712 and the external scsi.

Matt


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From: Jerry Huck <jerry_huck@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] lasi scsi driver
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> From: "Gyula Matics" <gyula_matics@hp.com>
> To: <parisc-linux@puffin.external.hp.com>
> Date: Thu, 2 Mar 2000 21:42:50 +0100
> Subject: [parisc-linux] lasi scsi driver

> It's only half working. It can list the devices on the bus, but that's all.
> 
> It is not working because it needs a horrible amount of cache flushing
> and I still didn't get it right. (the committed code only contains enough
> flushing to pass the two debugging tests)
> 
> The scsi card is running code that is in the main memory and the driver
> is heavily patching that. The bigger problem is that the communication
> with the card is done via a mailbox also residing in the main memory
> and the driver is assuming that this mailbox is on a non-cacheable page.
> 
> I know that the architecture supports setting a page non-cacheable.
> My question is if it is possible / good idea to set the mailbox page
> to non-cacheable?
> 
> Gyula

While the PA-RISC processor architecture supports the notion of a
non-cacheable page, most HP memory systems do not - certainly not the
most recent memory systems.  If you set the U-bit on a main memory page
and then reference the page, the processor will emit a sub-cacheline
transaction and the memory system will do something bad (probably
HPMC).  Also, I can't find any architected interface that would let
you test if a memory page could be accessed uncacheable.

Even for IA-64, main memory systems do not have to support uncacheable
references.  A PDC-like mechanism - PAL/SAL/EFI - reports the
available memory ranges and gives the supported attributes.  In the
IA-64 case, the I/O system is coherent so you don't need any of the
cache flushing.  So don't ever get in the situation where you need
uncacheable main memory.

Jerry Huck


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------- Forwarded Message

Subject: Upgrading System Firmware
To: grundler@cup.hp.com (Grant Grundler)
Date: Fri, 03 Mar 2000 12:10:30 MST

Grant,

You could forward this on to the puffin mail list ?

Thanks,
Mike

============= Upgrading System Firmware ============


Grant asked if another HP person could answer the question about
upgrading firmware.

All systems that support field upgradable firmware (flash ROMs) are 
available from the HP support web page.

Point your browser at 
    http://us-support.external.hp.com/

At some point you will need to register to get access to the firmware
update files.  It's free.

Once you have registered, from the main page select
    1) Maintenance and Support

>From this page, select
    2) Patching - Individual Patches

>From this page, select
    3) Firmware Patches

And from this page
    4) Select CPU patches checkbox and click Show Patches button

You will see the list of all firmware patches.

Note that what you will get is basically a shar file with a LIF volume
inside the shar.  You can dd this LIF image to DAT and boot the dat tape
to update, or you can put the LIF image on a bootp or install_bootp server
and update from the network.

Regards,
Mike King
king@fc.hp.com

------- End of Forwarded Message


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Rajiv Dighe wrote:
> 
> ----- Original Message -----
> From: "Earley, Matthew [PGC:9475:EXCH]" <mearley@americasm01.nt.com>
> > Is the CD-ROM drive external?  If so, try connecting another device
> > between the CD-ROM and the scsi port.  I remember something squirelly
> > about the 712 and the external scsi.
> >
> > Matt
> 
> Yes, It's an external cd-rom drive. unfortunately 712s can't have more than
> one scsi device internally. and definately nothing with 5.25" formfactor.
> but I will try to open the case & put the cd-rom or my dat drive on a long
> internal scsi cable tonight.

I meant to say, just put a tape or disk shoeboc between the cd-rom  and
the 712.  You may think I'm crazy, but give it a try.

Matt


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On Fri, Feb 25, 2000 at 11:03:48PM +0100, Philipp Rumpf wrote:
> > > Uh oh.  We really need a kernel unaligned trap handler.  Some of
> > > the network protocols rely on that being handled right (yes, i know.
> > > it sucks.)
> > 
> > It really sucks. If any code in the performance path depends on this,
> 
> Another vote for "it sucks".
> 
> Which network drivers, protocols aso exactly are you using (and did you
> check for the bug Matthew posted an URL for ?) ?  I really don't think
> we should write an unaligned handler until we find ourselves using weird
> protocols (and hopefully not even then).

the first person using IPX will need an unaligend trap handler. All the
ethernet driver try to align the IP header to a 32bit boundary (that's
the reason for the skb_reserve(skb, 2)), which messes up the alignment
in IPX headers. And there are ethernet chips, which can only handle
32bit aligned receive buffer (tulip for example). You either have to
copy the received frame to a proper aligned new skb (that's what we
do at the moment) or handle the missalignment in an unaligned trap
handler.

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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The latest changes to the main line (SOM) as of this moment have
been folded into the ELF_BRANCH branch.  I had a SCSI lock-up
but otherwise things seem to be as healthy for ELF as I've heard
they are for SOM.  I won't be around until Tuesday, or possibly
Wednesday, but it seems a great time to move all of us to ELF...

	-Paul Bame


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On Fri, Mar 03, 2000 at 11:10:58AM -0800, Jerry Huck wrote:
> While the PA-RISC processor architecture supports the notion of a
> non-cacheable page, most HP memory systems do not - certainly not the
> most recent memory systems.  If you set the U-bit on a main memory page
> and then reference the page, the processor will emit a sub-cacheline
> transaction and the memory system will do something bad (probably
> HPMC).  Also, I can't find any architected interface that would let
> you test if a memory page could be accessed uncacheable.

That isn't necessarily a problem.  The interface requires the allocation
of pages which are coherent.  On recent architectures, it's possible to
allocate pages which are actually IO coherent.  On earlier architectures,
the same interface would return uncached pages.  The question is
whether there are any implementations which can do neither of the two
possibilities.


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I checked out a copy of glibc from the Cygnus repository (using the
datestamp 2000-03-03), and checked it into our repository in the "glibc"
directory.  You can check it out by doing "cvs co glibc".

All our development on glibc should take place in "glibc" on the trunk.  
The Cygnus sources will be tracked on the GLIBC_CVS_DIST branch, similarly
to how we are tracking Linus' sources in /linux-2.3 on the "linus" branch.  
Instead of using a discrete release number to tag, I propose that we pull
from the Cygnus CVS using a specific date tag, and create a matching
static tag in our repository (e.g. GLIBC_CVS_2000_03_03).

We should push our changes back to the Cygnus tree as often as possible.
Ideally we would just work directly on the Cygnus tree, and people who
wanted to pick our changes would pull from Cygnus.  By having our own
local copy, we risk paying the "stupid tax" by forking glibc and having to
constantly deal with merge problems and support.

(We did a bad, bad thing, and renamed the old "glibc" directory to
"glibc-old" in the repository.  This shouldn't affect you unless you have
an old "glibc" tree around, and willy and I determined this should be a
set of one person.  In this case, you need to blow away your old tree.
Please talk to me if you have local changes.)

Happy hacking,
	- Mike.


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Subject: [parisc-linux] Weekly News [2000-03-03]
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PA-RISC/Linux Weekly News - 3rd March 2000

   http://www.thepuffingroup.com/parisc/
       vol 2, issue 7

   This Week:
   News & Announcements
       CVS Page
       This Week's CVS Activity
       State of the Port Summary

News & Announcements
                              
     * Hardware Database updated.
        Matthew & Dave have substantially updated the Hardware Database
            including correcting the CPU types, adding new drivers,
            adding PCI devices and fixing some of the ioscan output. If
            you have any machines running HPUX 10 or greater which aren't
            listed, please submit your ioscans to the database.
     * ELF work continuing
        Paul has put in a lot of work getting the ELF kernel booting.
            Once more people have reported success with ELF kernels,
            we'll switch all development over to ELF.
     * RPMs and DEBs available
        Thanks to Dave O'Neill and Dave Huggins-Daines, we have
            crosscompiling toolchains available from
            ftp://puffin.external.hp.com/pub/parisc/binaries for x86.
            Does anyone want to produce .depot files for us?

CVS Page

   Following on from last week's exciting look at the status page, this
       week's featured page is the CVS page. Newly updated to reflect
       reality, it tells you which repositories are available and how to
       access them.

This Week's CVS Activity

     * Grant updated the SBA IOMMU code.
     * Philipp cleaned up the header files.
     * Paul checked in a rewrite of PALO.
     * Matthew checked in the linux/parisc website.
     * Paul fixed a large number of ELF problems.
     * Gyula updated the LASI SCSI support.
     * Helge updated the LASI ethernet support.
        
State of the Port Summary
            
     * Kernel
          + based on 2.3.42
     * Supported Hardware:
          + SCSI, Lan and PS/2 on Lasi I/O controller
          + Dino PCI controller
          + Elroy PCI controller
          + Tulip ethernet
          + PCNet32 ethernet
          + Intel EEPro ethernet
     * Project Page
          + http://www.thepuffingroup.com/parisc/
     * Latest Workable Image
          + ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/Imag
            e-20000218
     * Running PA-RISC/Linux "recipe":
          + http://thepuffingroup.com/parisc/recipe.html




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Subject: Re: [parisc-linux] latest glibc checked in
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with that Implies checked in, it'll get as far as trying to build in the
csu directory.  There's a problem with initfini.s -- the autogenerated
one looks something like this:

_init
	.PROC
	.CALLINFO
	.ENTRY

/* cut here */

	.EXIT
	.PROCEND

and then the same for _fini.  Then there's a nasty little sed script
which cuts the file into chunks and leaves the chunk before `cut here'
in one file and the chunk after in another.  So I just delete the 5
directives there and then type `make' and it carries on compiling merrily.
I suspect gcc needs to be fixed to not output those directives for ELF.

Just so I know (not so I can hold your feet to the fire), who's interested
in doing toolchain work, and who's interested in doing glibc work?


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willy@thepuffingroup.com wrote:
> That isn't necessarily a problem.  The interface requires the allocation
> of pages which are coherent.  On recent architectures, it's possible to
> allocate pages which are actually IO coherent.  On earlier architectures,
> the same interface would return uncached pages.  The question is
> whether there are any implementations which can do neither of the two
> possibilities.

That's basically correct. Let's start talking about implementations.

HP systems have three I/O MMU's which are I/O coherent: U2/Uturn,
Astro/Ike, and Epic/SAGA.  AFAIK, all systems using one on them have
the processor(s) connected to a "Runway" bus.  This limits what
processor model those systems can have: PA-7200, -8000, -8200, or -8500.

(Caveats:
 - T-class has something similar to U2 which is NOT I/O coherent
 - V-class (EPIC/SAGA) is probably supportable with some limitations
)

In personal conversations, two knowledgable folks have suggested
the following:
o PA-7100LC systems support uncacheable memory and subcacheline access.
  So these boxes should be supportable.

o PA-7300LC systems *might* support uncacheable memory and subcacheline...
  (Could anyone definitively answer this for any PA-7300LC box?)

o PA-7000 systems are pretty much SOL.
  (But they could be perfectly useful if folks add cache flushing to
   the few device drivers needed for graphics and stuff off of LASI.)

In summary, the number of "unsupportable" systems isn't as big
as I first thought.

thanks,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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On Sat, Mar 04, 2000 at 09:49:49PM -0800, Grant Grundler wrote:
> HP systems have three I/O MMU's which are I/O coherent: U2/Uturn,
> Astro/Ike, and Epic/SAGA.  AFAIK, all systems using one on them have
> the processor(s) connected to a "Runway" bus.  This limits what
> processor model those systems can have: PA-7200, -8000, -8200, or -8500.
> 
> (Caveats:
>  - T-class has something similar to U2 which is NOT I/O coherent

According to the hwdb, the T600 has two `Java BC Summit Port (IOA)'.
And you're the only one in possession of a T-class :-).  All the devices
in the T600 seem to be special devices so the drivers would have to
be freshly written anyway.  I don't see a PCI adapter in the T-class,
can one be fitted?  I assume Summit is the name of a bus, like Runway
only different?

> In personal conversations, two knowledgable folks have suggested
> the following:
> o PA-7100LC systems support uncacheable memory and subcacheline access.
>   So these boxes should be supportable.

that's good, that's a fair chunk of those machines which people have (712,
725/100, 715/later, E-class, early D-class).

> o PA-7300LC systems *might* support uncacheable memory and subcacheline...
>   (Could anyone definitively answer this for any PA-7300LC box?)

According to the 7300LC ERS, section 1.1.2 (Integrated Caches and TLB)
`Uncached memory pages are supported via the TLB U-bit.'  Then section
1.2.2, (Differences from the PA7100LC) `Uncacheable pages are still
supported.  Note: PA7100LC did not require the U bit to be set on TLB
entries for I/O pages, but the PA7300LC does (this was always an
architural requirement).'

I think that's enough for us to go on.

> o PA-7000 systems are pretty much SOL.
>   (But they could be perfectly useful if folks add cache flushing to
>    the few device drivers needed for graphics and stuff off of LASI.)

how about PA7100/7150 systems?  (715/early, 735, 755, later Nova servers)
They will also need explicit cache flushing added, I guess.


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Subject: Re: [parisc-linux] uncacheable memory  (D370)
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> >  - T-class has something similar to U2 which is NOT I/O coherent
>

I have a chance at a T-500.  Is it of use?

>
> 725/100, 715/later, E-class, early D-class).
>
> > o PA-7300LC systems *might* support uncacheable memory and subcacheline...
> >   (Could anyone definitively answer this for any PA-7300LC box?)
>

Where does the D-370 dual processor fit here?


--
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
_/                            _/
_/   Rob Hoppe                _/
_/   770-995-5099             _/
_/   770-560-1050 cell        _/
_/   770-338-5885 fax         _/
_/                            _/
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/



From - Thu Nov 08 21:12:05 2018
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Subject: Re: [parisc-linux] uncacheable memory  (D370)
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Xref: news.gmane.org gmane.linux.ports.parisc:6971

On Sun, Mar 05, 2000 at 10:57:16AM -0500, rob hoppe wrote:
> 
> 
> > >  - T-class has something similar to U2 which is NOT I/O coherent
> >
> 
> I have a chance at a T-500.  Is it of use?

Not in the short term, but if you can get access to it, I'd love to see
ioscan output turn up in the hwdb...

> >
> > 725/100, 715/later, E-class, early D-class).
> >
> > > o PA-7300LC systems *might* support uncacheable memory and subcacheline...
> > >   (Could anyone definitively answer this for any PA-7300LC box?)
> >
> 
> Where does the D-370 dual processor fit here?

The D370 has a U2 IOA in it and as such is IO Coherent.


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Xref: news.gmane.org gmane.linux.ports.parisc:6972

> In personal conversations, two knowledgable folks have suggested
> the following:
> o PA-7100LC systems support uncacheable memory and subcacheline access.
>   So these boxes should be supportable.
> 
> o PA-7300LC systems *might* support uncacheable memory and subcacheline...
>   (Could anyone definitively answer this for any PA-7300LC box?)

It does, according to our documentation.

> o PA-7000 systems are pretty much SOL.
>   (But they could be perfectly useful if folks add cache flushing to
>    the few device drivers needed for graphics and stuff off of LASI.)

More importantly, they don't use PCI (and not even GSC).  It's perfectly
fine for us to require HP-PB drivers aso to do cache flushing.

> In summary, the number of "unsupportable" systems isn't as big
> as I first thought.

I'm still not convinced there's going to be any problem at all, even on
runway systems.

	Philipp Rumpf


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> While the PA-RISC processor architecture supports the notion of a
> non-cacheable page, most HP memory systems do not - certainly not the
> most recent memory systems.

Can you give us a concrete list of broken memory systems ?

> If you set the U-bit on a main memory page and then reference the page,
> the processor will emit a sub-cacheline transaction and the memory system
> will do something bad (probably HPMC).

So there is a sub-cacheline transaction on Runway but current memory
controllers don't implement it ?

> So don't ever get in the situation where you need uncacheable main memory.

uncacheable main memory is the only sane way to deal with cache-incoherent
DMA - macros to flush the cache are both slower and harder to add to drivers
written with the assumption that dma is cache-coherent.

	Philipp Rumpf


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On Sun, Mar 05, 2000 at 07:46:52PM +0100, Philipp Rumpf wrote:
> uncacheable main memory is the only sane way to deal with cache-incoherent
> DMA - macros to flush the cache are both slower and harder to add to drivers
> written with the assumption that dma is cache-coherent.

I can't say how things are for PARISC, but in the MIPS world it's usually
better to use cached memory/flush caches than doing uncached accesses.
And adding cache flushes to a driver isn't that big task, if you know
the hardware (been there, done that).

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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From: Sandy Harris <sandy@storm.ca>
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Subject: Re: [parisc-linux] Value of an old K-class server?
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Steve Shack wrote:
> 
> Sandy Harris wrote:
> 
> > I don't know these servers, but I've a friend who deals machines of about
> > that generation, buying them in truckload lots and reselling. Recent
> > prices from him, in Canadian $:
> >
> >          RAM    disk    monitor quantity
> > 712/60   128    no      no      16      $ 50 apiece.
> > 715/100  256    no      19"     1       $200
> 
> If he can find me a 712/100 with 128+megs ram i'd buy that in a
> second. Care to pass that on to him?

I bought the only 100 I've seen so far and have already told him I'll
take all the 712/100s he gets. They seem to be mostly 60s. 712s take
128 maximum RAM. 715s can go to 256 and have room for more drives. My
guess is a 715/100 might suit you.

I waited to respond to this, and the other messages asking for details,
until I had his permission to post his email address:

jan@magma.ca

Location is a small town outside Ottawa. He also has lots of Suns, if
anyone here cares :-)


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From: Barrie Spence <baz@calvin.demon.co.uk>
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Subject: Re: [parisc-linux] Value of an old K-class server?
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Sandy Harris <sandy@storm.ca> wrote:
> 712s take
> 128 maximum RAM. 715s can go to 256 and have room for more drives. My
> guess is a 715/100 might suit you.

A 712/100 should have 6 RAM slots giving up to 192Mb.

Barrie


--
Barrie Spence			Sanity Clause? There is no Sanity Clause
Home: b.spence@ieee.org		Telephone +44 1506 442304
Play: barrie_spence@agilent.com


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On Sun, 5 Mar 2000, Barrie Spence wrote:

> Sandy Harris <sandy@storm.ca> wrote:
> > 712s take
> > 128 maximum RAM. 715s can go to 256 and have room for more drives. My
> > guess is a 715/100 might suit you.
> 
> A 712/100 should have 6 RAM slots giving up to 192Mb.
> 

 Exactly what kind of Ram does the 715 series use, I tried some in a PC
and it doesn't work. I get about 48 megs extra from old boxes in 8 meg
simms. 

Terry
 


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Subject: Re: uncacheable memory
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On Sat, Mar 04, 2000 at 09:49:49PM -0800, Grant Grundler wrote:
> HP systems have three I/O MMU's which are I/O coherent: U2/Uturn,
> Astro/Ike, and Epic/SAGA.  AFAIK, all systems using one on them have
> the processor(s) connected to a "Runway" bus.  This limits what
> processor model those systems can have: PA-7200, -8000, -8200, or -8500.
> 
> (Caveats:
>  - T-class has something similar to U2 which is NOT I/O coherent

Apologies. I should have been clearer about several things.

"T-class" should have been "T600".
I don't think T5xx series have any sort of I/O TLB in them.

willy@thepuffingroup.com wrote:
> According to the hwdb, the T600 has two `Java BC Summit Port (IOA)'.
> And you're the only one in possession of a T-class :-).

Actually, I'm neither in possession of one nor the only person who
might be. I couldn't believe it, but AFAIK HP sold thousands of them.
(The ioscan output is left over from my previous job.)
FTW, the URL is still valid but no longer linked from the
main "servers" web page:

	http://www.unixsolutions.hp.com/products/servers/tclass/

I suggest interested parties "snarf" what they can from those web pages
before the pages go away....375kg...sheesh.

> All the devices in the T600 seem to be special devices so the
> drivers would have to be freshly written anyway.  I don't see
> a PCI adapter in the T-class, can one be fitted?

First, T5xx only supports HP-PB devices. Basically same devices
as "Nova" (EFGHI-) class boxes and K-class. However, like K-class,
T600 also supports GSC cards in a "daughter board" form factor.
(but the "header" sheet metal is slightly different.... *SIGH*)

And HP does make/ship card-mode Dino 100BT cards for both T600
and K-class. Making card-mode Dino work on T600 is quite impossible
without looking at HP-UX source (or reverse engineering the binary).
I helped do it once. Java really doesn't like to play with Dino.

> I assume Summit is the name of a bus, like Runway only different?

Yes. AFIAK, Summit is the "memory" bus for T-5xx series.
On T600, same bus protocol but it's twice as "wide".


Someone else asked what's wrong with the memory controllers:

AFAIK, subcacheline accesses are a different type of transaction 
which many HP memory controllers don't *need* to support. I'm guessing
systems where I/O devices sit on the same bus as the memory controller
(eg 712, PA-7100LC), the memory controller supports all types of
transactions in order for DMA to work. So if the U-bit is also
supported by the processor, it'll all work.


hope this is better,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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"T. Martin" schrieb:

> On Sun, 5 Mar 2000, Barrie Spence wrote:
>
> > Sandy Harris <sandy@storm.ca> wrote:
> > > 712s take
> > > 128 maximum RAM. 715s can go to 256 and have room for more drives. My
> > > guess is a 715/100 might suit you.
> >
> > A 712/100 should have 6 RAM slots giving up to 192Mb.
> >
>
>  Exactly what kind of Ram does the 715 series use, I tried some in a PC
> and it doesn't work. I get about 48 megs extra from old boxes in 8 meg
> simms.
>
> Terry
>

afaik: the 715 have special memories, which look like ps2 but aren't. i'm not
even sure if the 712 and 715 use the same simms. you should definitely look for
dedicated 715 memories. i have the same problem with 735s, which use their own
memory design.

regards frank

>
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.




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Frank Benke <frank.benke@web.de> wrote:
> 
> afaik: the 715 have special memories, which look like ps2 but aren't.

definitely

> i'm not even sure if the 712 and 715 use the same simms. you should
> definitely look for dedicated 715 memories.

712/715 RAM is compatible, though I believe that the 712s and the
newer 715s used slightly faster specs than the original 715/{33,55,75}s.

> i have the same problem with 735s, which use their own
> memory design.

The 735 memory is the same as 720/730/750/755 if it helps, but note
that the 720/730 machines can't use the higher density modules
introduced with the 735/755 machines. 

Barrie


--
Barrie Spence			Sanity Clause? There is no Sanity Clause
Home: b.spence@ieee.org		Telephone +44 1506 442304
Play: barrie_spence@agilent.com


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willy@thepuffingroup.com writes:

> Just so I know (not so I can hold your feet to the fire), who's interested
> in doing toolchain work, and who's interested in doing glibc work?

I will do some of the glibc work if I'm finally getting some reasoably
stable toolchain and the appropriate headers for cross-compilation
(from HPUX).

-- 
---------------.      drepper at gnu.org  ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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> Date: Sun, 5 Mar 2000 19:46:52 +0100
> From: Philipp Rumpf <prumpf@inwestnet.de>
> To: huck@cup.hp.com
> Subject: Re: [parisc-linux] lasi scsi driver

> > While the PA-RISC processor architecture supports the notion of a
> > non-cacheable page, most HP memory systems do not - certainly not the
> > most recent memory systems.
> 
> Can you give us a concrete list of broken memory systems ?

Unfortunately not, since these memory systems weren't broken wrt
the architecture, I didn't keep track of this feature.  We really need
some interesting combination of memory system and I/O adapter coherence
capability.  Grant has posted much more on this than I know.

> > If you set the U-bit on a main memory page and then reference the page,
> > the processor will emit a sub-cacheline transaction and the memory system
> > will do something bad (probably HPMC).
> 
> So there is a sub-cacheline transaction on Runway but current memory
> controllers don't implement it ?

Yes.  The bus interface doesn't know the distinction between I/O accesses
and main memory.  The processor relies on "F" extension and/or the U-bit
to sort out how to treat an address dereference.  Sub-cacheline transactions
are the normal memory-mapped I/O transactions.

> > So don't ever get in the situation where you need uncacheable main memory.
> 
> uncacheable main memory is the only sane way to deal with cache-incoherent
> DMA - macros to flush the cache are both slower and harder to add to drivers
> written with the assumption that dma is cache-coherent.

The architecture was not designed to import drivers written to a
cache-coherent model.  This is not unique to PA-RISC.  Even IA-32 had
a little trouble on the first write-back caches in the 486.  While it
is not simple to convert all drivers, many drivers have a fairly clean
design that make it manageable to add the appropriate flush calls.  Some
drivers have byte granular interactions that make them impossible to
re-work.

Sorry I couldn't be more helpful with specific characteristics.

Jerry


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> > Can you give us a concrete list of broken memory systems ?
> 
> Unfortunately not, since these memory systems weren't broken wrt
> the architecture, I didn't keep track of this feature.  We really need
> some interesting combination of memory system and I/O adapter coherence
> capability.  Grant has posted much more on this than I know.
> 
> > > If you set the U-bit on a main memory page and then reference the page,
> > > the processor will emit a sub-cacheline transaction and the memory system
> > > will do something bad (probably HPMC).
> > 
> > So there is a sub-cacheline transaction on Runway but current memory
> > controllers don't implement it ?
> 
> Yes.  The bus interface doesn't know the distinction between I/O accesses
> and main memory.  The processor relies on "F" extension and/or the U-bit
> to sort out how to treat an address dereference.  Sub-cacheline transactions
> are the normal memory-mapped I/O transactions.

Okay, so there are several things I'd like to resolve:

On Runway-based systems, we don't need uncached memory.
On PA7[13]00LC, uncached memory works.
On old 715s, we don't have PCI.


So, it looks to me like there's no case left we cannot handle except for
undocumented Runway interfaces we just hope don't get in our way (U2 / Uturn,
for now) (and even for those it's probably just one bit we'll have to set).

> > uncacheable main memory is the only sane way to deal with cache-incoherent
> > DMA - macros to flush the cache are both slower and harder to add to drivers
> > written with the assumption that dma is cache-coherent.
> 
> The architecture was not designed to import drivers written to a
> cache-coherent model.  This is not unique to PA-RISC.  Even IA-32 had
> a little trouble on the first write-back caches in the 486.  While it
> is not simple to convert all drivers, many drivers have a fairly clean
> design that make it manageable to add the appropriate flush calls.  Some
> drivers have byte granular interactions that make them impossible to
> re-work.

There won't be any flush calls left to add in 2.4.  Unless you want to
maintain a patch against Linus for every single PCI driver in the tree
there's really no way we can use those with systems that neither have
uncached memory nor coherent DMA (and still, we don't know of even one
such system).

	Philipp Rumpf


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Philipp Rumpf wrote:

> Okay, so there are several things I'd like to resolve:
> 
> On Runway-based systems, we don't need uncached memory.
> On PA7[13]00LC, uncached memory works.
> On old 715s, we don't have PCI.

I was mostly worried about systems with PCI.
I'm not worried anymore.


> So, it looks to me like there's no case left we cannot handle except for
> undocumented Runway interfaces we just hope don't get in our way (U2 / Uturn,
> for now) (and even for those it's probably just one bit we'll have to set).

I'm pretty sure systems with Runway will not be a problem.
(Except T600) There are other Runway-to-xxx bus converters but
I believe those will be transparent WRT I/O coherency problems.

> There won't be any flush calls left to add in 2.4.  Unless you want to
> maintain a patch against Linus for every single PCI driver in the tree
> there's really no way we can use those with systems that neither have
> uncached memory nor coherent DMA (and still, we don't know of even one
> such system).

I'm pretty sure Jerry wasn't referring to PCI drivers.
Systems with PCI are either I/O Coherent or have PA-7[13]00LC.

It seems only drivers running on systems with PA-7000 processors (which
AFAIK doesn't support U-bit) would need cache flushing. While those
drivers aren't for PCI devices, they might share some of the "core"
driver logic (NCR 53c700 SCSI?). So people who care about those boxes
(eg model 710) *will* have to maintain patches against a few drivers
or fork off their own version of the driver. The good thing is the
number of different models, the age of those models, and thus number
of drivers should all be pretty small.

grant

> 
> 	Philipp Rumpf
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Development Lab
+1.408.447.7253


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I incorporated prumpf's byte-order changes to palo & ipl so they *should*
work when cross-compiled on x86 but I haven't been able to confirm that yet.

palo (really ipl) was converted to use ELF32, so you don't need SOM
for the boot loader.  palo still understands either SOM or ELF32
executables for ipl (if you happen to have an old one) and/or vmlinux.

The palo sources have been heavily re-named, so get your new bits with care!

One oddity -- you have to build palo 2 extra times at first, due to
some symlinking hacks.  VPATH would probably be better, when I get the time,
or somebody else does.

	-P


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From: Matthew Hudson <mhudson@home.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Sorta results of a J210XC?
Date: Wed, 08 Mar 2000 13:27:21 -0600
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The reason I say 'sorta' is because I don't have a front
panel on my case and I'm not 100% sure it is a J210XC,
but here are the specs, so maybe you can tell me.
(recalling this from memory, if you need more info
I'll obtain try to obtain it).

HP A4491A
Dual 120Mhz CPU with 1MBIC,1MBDC (from IN)

from -more /proc/cpuinfo
cpu: PA-RISC 7200
model name: LighteningHawk T120

As far as booting kernel goes, I get to the prompt and am able
to -mount, -more, etc.

I'll add this to your database if I can confirm(determine)
what it is.

I don't have HP/UX so I can't obtain any information from
its various utilities.

Thanks,

-Matt


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From: Steve Shack <sshack@cln.etc.bc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Neat hardware on 712.
Date: Wed, 08 Mar 2000 21:44:32 -0800
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Good day puffins,
    Last night  Philipp and myself were playing around with the 712's
discusing how to support the powerswitch gracefully when we realized
that there was a cable going to the front of the case; Upon further
inspection it is a thermal sensor. Some duscussion followed as to how
this might be interfaced to the system. As it turns out it works as the
following. When the circuit is completed and the sensor is too hot
another fan in the back of the 712's power supply turns on. We've yet to
determine if there is anything else going on in the system or if there
is any way this information is reported back to the os/running system at
all but we'll investigate further. Philipp has suspicions about the
large number of wires coming on the power header. That perhaps some of
those wires are used for signaling. Myself I have a feeling that it
might be a combination of that and the two smaller wires coming from the
psu.


That's all for now.
Steve


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From: willy@thepuffingroup.com
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Subject: Re: [parisc-linux] Neat hardware on 712.
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Xref: news.gmane.org gmane.linux.ports.parisc:6988

On Wed, Mar 08, 2000 at 09:44:32PM -0800, Steve Shack wrote:
> Good day puffins,
> following. When the circuit is completed and the sensor is too hot
> another fan in the back of the 712's power supply turns on. We've yet to
> determine if there is anything else going on in the system or if there
> is any way this information is reported back to the os/running system at
> all but we'll investigate further. Philipp has suspicions about the

hmm, i wonder if it uses the i2c bus like lm_sensors...


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From: "Rajiv Dighe" <rdighe@nortelnetworks.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Neat hardware on 712.
Date: Thu, 9 Mar 2000 11:33:32 -0500
Organization: Nortel Networks
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Talking of cool stuff..atleast I found this to be cool coming from wintel architecture, but while I was helping a friend load HP/UX 10.20 on a stack of 712s he has acquired, we came across a machine that had bad memory simm in it. when machine booted, it showed image of mainboard on the screen with simm slot that containing bad simm highlighted..sure beats the heck out of trying to listen to beeps on the speaker to find out what's wrong :)

--Rajiv
----- Original Message ----- 
From: "Steve Shack" <sshack@cln.etc.bc.ca>
To: <parisc-linux@thepuffingroup.com>
Sent: Thursday, March 09, 2000 12:44 AM
Subject: [parisc-linux] Neat hardware on 712.


> Good day puffins,
>     Last night  Philipp and myself were playing around with the 712's
> discusing how to support the powerswitch gracefully when we realized
> that there was a cable going to the front of the case; Upon further
> inspection it is a thermal sensor. Some duscussion followed as to how
> this might be interfaced to the system. As it turns out it works as the
> following. When the circuit is completed and the sensor is too hot
> another fan in the back of the 712's power supply turns on. We've yet to
> determine if there is anything else going on in the system or if there
> is any way this information is reported back to the os/running system at
> all but we'll investigate further. Philipp has suspicions about the
> large number of wires coming on the power header. That perhaps some of
> those wires are used for signaling. Myself I have a feeling that it
> might be a combination of that and the two smaller wires coming from the
> psu.
> 
> 
> That's all for now.
> Steve
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


From - Thu Nov 08 21:12:06 2018
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From: Bob Pflederer <krp@rsn.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C180 experience
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Xref: news.gmane.org gmane.linux.ports.parisc:6990

Hi-

I wanted to share my experience with getting my C180 to boot using the
PALO, the ELF kernel, and NFSROOT.  I was successfully able to build
the "binutils" and "gcc" packages for cross compiling from x86 linux.
Although, I did have the '$global$' symbol problem which I ignored:

Testing libgcc1.  Ignore linker warning messages.
/parisc/gcc-build/gcc/xgcc -B/parisc/gcc-build/gcc/ -B/parisc/tools/gcc/hppa1.1-linux/bin/ -I/parisc/tools/gcc/hppa1.1-linux/include -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -g -O2  -I./include  libgcc1-test.o -o libgcc1-test \
  -nostartfiles -nostdlib `/parisc/gcc-build/gcc/xgcc -B/parisc/gcc-build/gcc/ -B/parisc/tools/gcc/hppa1.1-linux/bin/ -I/parisc/tools/gcc/hppa1.1-linux/include --print-libgcc-file-name`
libgcc1-test.o: In function `main_without__main':
/parisc/gcc-build/gcc/../../gcc/gcc/libgcc1-test.c:20: undefined reference to `$global$'
collect2: ld returned 1 exit status
make[1]: *** [libgcc1-test] Error 1
make[1]: Leaving directory `/parisc/gcc-build/gcc'
make: *** [all-gcc] Error 2

Using the instructions in /palo/README.CROSSCOMPILE, I was able to build an
x86 version of palo, and a parisc version if ipl.

With those tools, I could build the ELF_BRANCH version of the kernel with
make menuconfig; make dep; make palo

After setting up bootp, tftp, and NFS, I was able to start booting, but the 
machine would HPMC during the ethernet driver init:

pty: 256 Unix98 ptys configured^M
eth0: 82596 at 0xffd07000, 00 60 B0 18 39 C0 IRQ 535.^M
lasi_82596.c:v1.2 02/13/2000^M
eth0: lp at 0xc7fad000 (1716 bytes), lp->scb at 0xc7fad014^M
request_irq(535, c01a5d0c, 0x0, i82596, c7fb8020)^M
[ HPMC HERE ]

It appears that there was an interrupt already pending when the irq was 
turned on.  This caused the interrupt handler to get called
before everything was set-up, which I believe led to the HPMC:

pty: 256 Unix98 ptys configured^M
eth0: 82596 at 0xffd07000, 00 60 B0 18 39 C0 IRQ 535.^M
lasi_82596.c:v1.2 02/13/2000^M
eth0: lp at 0xc7fad000 (1716 bytes), lp->scb at 0xc7fad014^M
eth0: i596_open() irq 535.^M
request_irq(535, c01a5d0c, 0x0, i82596, c7fb8020)^M
eth0: i596_interrupt(): irq 535^M
eth0: i596 interrupt, status 0000.^M
[ HPMC HERE ]

So I hacked the driver to ignore the interrupt until the lan chip
is initialized, and was able to get to sash (see below).   Probably
not the right way to fix this, but it worked.

I hope this is helpful.

-Bob Pflederer

===================================================================
RCS file: /home/cvs/parisc/linux-2.3/drivers/net/lasi_82596.c,v
retrieving revision 1.1.2.1
diff -c -r1.1.2.1 lasi_82596.c
*** lasi_82596.c        2000/03/03 21:41:47     1.1.2.1
--- lasi_82596.c        2000/03/09 19:26:13
***************
*** 986,991 ****
--- 986,993 ----
        if (i596_debug > 1)
                printk("%s: i596_open() irq %d.\n", dev->name, dev->irq);
  
+       dev->interrupt = -1;
+ 
        if (request_irq(dev->irq, &i596_interrupt, 0, "i82596", dev))
                return -EAGAIN;
  
***************
*** 1182,1187 ****
--- 1184,1193 ----
        if (i596_debug > 3)
                printk("%s: i596_interrupt(): irq %d\n", dev->name, irq);
  
+       if (dev->interrupt == -1) {
+               printk("i596_interrupt(): irq %d skipping interrupt handler.\n", irq);
+               return;
+       }
        /* how fatal could this actually be? */
        if (dev->interrupt)
                printk("%s: Re-entering the interrupt handler.\n", dev->name);


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Hi folks,
Yesterday, after several days of testing, it was decided to switch
the kernel over to the ELF tool chain.  Mike Ang merged the changes
from the ELF_BRANCH onto the main line branch.  This switch is
necessary to:
o enable work on PA2.0 (64-bit) kernel support
o avoid SOM specific kluges in kernel initialization path


Willy updated the "How to Build a Kernel" a few days ago but
it doesn't include any info for palo (eg cvs -z3 co palo).
(Paul - can you fix that?)

I'm told only "make palo" works right now and "make Image" does not.
Interested parties are welcome to fix "make Image".

Is the ELF "hppa1.1" tool chain available as swdepot or tarball?
It would make life alot easier for folks like myself who aren't
very good tool chain hackers but could contribute in other ways.
(I already have ELF tool binaries - thanks to paul)

thanks,
grant


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Subject: [parisc-linux] HFS linux implementation
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(I sent this to Alex deVries and didn't get a response, so I figured I'd
give this list a try instead.)

I'm interested in the possibility of doing a linux module to mount HFS
filesystems (read-only would satisfy me I think, and is a reasonable
target.)  

I realize that the port is still in its very early stages, so
I intend to develop the module on the i386 platform and then worry
about getting it working on pa-risc.

I'm hoping you can tell me

- if anyone else is already working on this

- if you think the man pages and the white paper might be insufficient
  for the implementation; they look adequate to me, but I've never
  written a file-system driver before

- if you think it's worth the effort, given that I expect HP-UX systems
  are using LVM now and I don't feel up to the task of trying to handle
  that


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Nick Cabatoff wrote:
> (I sent this to Alex deVries and didn't get a response, so I figured I'd
> give this list a try instead.)

Poor Alex is pretty busy right now...

> I'm interested in the possibility of doing a linux module to mount HFS
> filesystems (read-only would satisfy me I think, and is a reasonable
> target.)  
> 
> I realize that the port is still in its very early stages, so
> I intend to develop the module on the i386 platform and then worry
> about getting it working on pa-risc.

Should work.

> 
> I'm hoping you can tell me
> 
> - if anyone else is already working on this

I didn't see it listed on:
	http://www.thepuffingroup.com/parisc/status.html
> 
> - if you think the man pages and the white paper might be insufficient
>   for the implementation; they look adequate to me, but I've never
>   written a file-system driver before

no clue. But someone has taken a look at this before and
concluded it was do-able. And you might check if other open
source parisc ports have already done it (eg OpenBSD or mklinux).

As a side note, don't confused HP's HFS with Apple's.
I'm not sure of what to call HP's since Apple HFS support was first.
Perhaps the other ports have set precedence for this.

> - if you think it's worth the effort, given that I expect HP-UX systems
>   are using LVM now and I don't feel up to the task of trying to handle
>   that

Yes. Most older workstations use HFS on wholedisk. HFS can be used
on disks > 4GB without LVM. I avoid LVM whenever I can. It's easier
to physically move disks from one host to another without LVM.
I only use LVM when the boot file system is on a disk > 2GB.


thanks,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Xref: news.gmane.org gmane.linux.ports.parisc:6994

On Mar 09, Grant Grundler wrote:
> Nick Cabatoff wrote:
> > (I sent this to Alex deVries and didn't get a response, so I figured I'd
> > give this list a try instead.)
> 
> Poor Alex is pretty busy right now...

That's what I gathered.  In any event the list was a better target for
my question I think.

> concluded it was do-able. And you might check if other open
> source parisc ports have already done it (eg OpenBSD or mklinux).

I didn't know there were any *BSD ports; I'm pretty sure mklinux didn't
get that far, based on what I looked at last year.  That's a good
thought though, thanks.  I'll see what I can find.

> As a side note, don't confused HP's HFS with Apple's.
> I'm not sure of what to call HP's since Apple HFS support was first.
> Perhaps the other ports have set precedence for this.

Actually, it looks like just stock UFS with ACL support, as far as I can
see.  Even that's kind of optional; many sites don't use ACLs at all
(hell, dump/restore don't know about them), and it looks like a
read-only implementation that just ignored them would work fine.  I
think that would be almost too easy given the existing linux UFS module
though, so once that much is working I'll probably do a writeable
version that preserves ACLs, even if it doesn't allow you to work with
them.

I think it also may be compatible with OSF/1's UFS (based on an
include-file comment), so this implementation would kill two birds with
one stone.

> > - if you think it's worth the effort, given that I expect HP-UX
> > systems are using LVM now and I don't feel up to the task of trying
> > to handle that
> 
> Yes. Most older workstations use HFS on wholedisk. HFS can be used on
> disks > 4GB without LVM. I avoid LVM whenever I can. It's easier to
> physically move disks from one host to another without LVM.  I only
> use LVM when the boot file system is on a disk > 2GB.

Ah, glad to see I was overgeneralizing from my own experience.  I've had
some bad luck with LVM on root disks myself, but I'm philosophically
opposed to having single-filesystem machines (i.e., I want seperate /var
and /tmp directories), so I stick with it.  <sigh>  I'm kind of
mystified why HP would've waited for LVM to allow multiple filesystems
on a single disk; what's so bad about partition tables?


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getting a bit off track here...

Nick Cabatoff wrote:
> <sigh>  I'm kind of
> mystified why HP would've waited for LVM to allow multiple filesystems
> on a single disk; what's so bad about partition tables?

You have to know about HP's "hard" partition scheme.
It was a pain to support. Every new disk required a new entry
in the kernel's partition table. yes, I said Kernel. It's not
stored on the disk. And that was delivered as a patch. 'nuf said.
That's why LVM is better than "partion tables".

Since LVM was "on the roadmap" anyway, HP decided to depend LVM
to provide "soft" portitioning (ie partition tables stored on the
media) instead of something like the PC's use.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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>>>>> "Nick" == Nick Cabatoff <ncc@cs.mcgill.ca> writes:

Hi Nick,

Nick> I'm interested in the possibility of doing a linux module to
Nick> mount HFS filesystems (read-only would satisfy me I think, and
Nick> is a reasonable target.)

I implemented read only hfs support in the early days of the PA-RISC
port.  It appears my ufs changes didn't get merged in when we moved
from 2.2 to 2.3, though.  Will fix...

One of Paul Bame's colleagues looked into implementing write support
at some point, but I don't know status on that project.  Paul?

-- 
Martin K. Petersen, Principal Linux Consultant, Linuxcare, Inc.
mkp@mkp.net, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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On Mar 10, Martin K. Petersen wrote:
> Nick> I'm interested in the possibility of doing a linux module to
> Nick> mount HFS filesystems (read-only would satisfy me I think, and
> Nick> is a reasonable target.)
> 
> I implemented read only hfs support in the early days of the PA-RISC
> port.  It appears my ufs changes didn't get merged in when we moved
> from 2.2 to 2.3, though.  Will fix...

Could I get a copy of the 2.2 version to satisfy my curiosity?

> One of Paul Bame's colleagues looked into implementing write support
> at some point, but I don't know status on that project.  Paul?

Since (expirimental) writeable UFS exists in the current kernel, and I
assume your implementation is a patch to the existing UFS code, I
don't imagine it would be difficult.  I'll try and do it if the person
you mention doesn't have time.

Is there any point in doing ACLs if you haven't already?


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On Fri, Mar 10, 2000 at 10:59:21AM -0500, Nick Cabatoff wrote:
> Could I get a copy of the 2.2 version to satisfy my curiosity?

sure.  cvs co linux gets you the linux 2.2.12 tree we were working on.

> Is there any point in doing ACLs if you haven't already?

linux doesn't currently support acls.  there's no interface for setting
or accessing acls.


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From: Nick Cabatoff <ncc@cs.mcgill.ca>
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Subject: Re: [parisc-linux] HFS linux implementation
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Xref: news.gmane.org gmane.linux.ports.parisc:6999

On Mar 10, willy@thepuffingroup.com wrote:
> On Fri, Mar 10, 2000 at 10:59:21AM -0500, Nick Cabatoff wrote:
> > Could I get a copy of the 2.2 version to satisfy my curiosity?
> 
> sure.  cvs co linux gets you the linux 2.2.12 tree we were working on.

Okay, I'll take a look, thanks.

> > Is there any point in doing ACLs if you haven't already?
> 
> linux doesn't currently support acls.  there's no interface for setting
> or accessing acls.

There is one that hasn't made it into the stock kernel yet at
http://acl.bestbits.at.


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hiya all,

I've been trying to make a parisc-linux crosscompiler from a
i586-linux-gnu platform, the binutils build with no problems, but
at the final stage of building gcc it stops at the libgcc-test
with the following error :

libgcc1-test.o: In function `main_without__main':
/home/blacky/cvs/build/gcc/../../gcc/gcc/libgcc1-test.c:20: undefined reference to `$global$'

it seems to reference to the integer-divide function in libgcc.

How can I get around this problem ?

thanx in advance,

Signed, Marco van den Heuvel



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From: Philipp Rumpf <prumpf@inwestnet.de>
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Subject: Re: [parisc-linux] undefined reference in libgcc.a
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Xref: news.gmane.org gmane.linux.ports.parisc:7002

> I've been trying to make a parisc-linux crosscompiler from a
> i586-linux-gnu platform, the binutils build with no problems, but
> at the final stage of building gcc it stops at the libgcc-test
> with the following error :
> 
> libgcc1-test.o: In function `main_without__main':
> /home/blacky/cvs/build/gcc/../../gcc/gcc/libgcc1-test.c:20: undefined reference to `$global$'
> 
> it seems to reference to the integer-divide function in libgcc.
> 
> How can I get around this problem ?

The Easy Way:  remove the rule to build libgcc1-test out of the gcc Makefile.

AIUI, the right way would be to supply a crt1.o (or similar) that defines
$global$, _start aso.

	Philipp Rumpf


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] .depend file for drivers/gsc?
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Xref: news.gmane.org gmane.linux.ports.parisc:7003

Hi all,
Minor problem I think someone else can figure out faster then me.
I changed my .config to use CONFIG_LBA_PCI. When I rebuilt, I got
a "dino_init" no defined linker error.

It turns out no ".depend" file gets created for drivers/gsc.
I looked through linux-2.3/Makefile and drivers/Makefile and
they both looked ok to me. So if someone could take a quick look
at this....

in the meantime, i'll just "make clean" after changing my .config.

thanks,
grant


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From: Steven Pritchard <steve@silug.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP-UX application support?
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MEYER,ALAN C. \(HP-FtCollins,ex1\) said:
> Also, I am assuming the install model will be to simply copy files from an
> HP-UX system over to a PA/Linux system.  In particular, I have heard of no
> plans to support HP-UX packages bundled in "SD" format.  Right?

The SD depot files are just tar files.  Supporting them would be
trivial.  You can always untar it, move everything to the appropriate
location, and run the scripts.  Making that automated (maybe with
alien) probably wouldn't be at all difficult...

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(618)398-7320             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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Subject: [parisc-linux] Assembly Language Changes
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Hello,
over the last few days or so, I have been trying to get glibc to build and
work for a Linux/PA-RISC target.  I came to believe it would be simpler to
change certain aspects of the assembly language used than to keep working
around them:

 - Labels should always use ':'
 - mnemonics in the first column should be interpreted normally.
 - register names should always start with '%', not be specified by an
   integer
 - where pa2.0 and pa1.1 differ in opcode names aso, the pa2.0 version
   should be used ("b,l" rather than "bl")
 - ';' should be used rather than '!' to separate multiple statements
   on the same line
 - possibly there should be a line comment character to replace ';' ?

The advantages to changing the assembly dialect we use are that using cpp
to pre-process assembly instructions becomes a lot simpler (glibc makes
heavy use of this);  the assembly language looks more similar to those
used for other architectures that run Linux;  there is no difference
between the pa1.1 and pa2.0 versions.

The disadvantage, obviously, is that we would need to keep separate
binaries around to compile HP/UX assembly source;  also, the assembly
files used by the kernel would need to be converted (and probably get
readable to more people in the process).

The actual work to implement the changes should be pretty low, and I'm
more than willing to do it (and actually already implemented the most
important (to me) changes).

	Philipp Rumpf


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Subject: Re: [parisc-linux] .depend file for drivers/gsc?
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Xref: news.gmane.org gmane.linux.ports.parisc:7006

> Minor problem I think someone else can figure out faster then me.
> I changed my .config to use CONFIG_LBA_PCI. When I rebuilt, I got
> a "dino_init" no defined linker error.
> 
> It turns out no ".depend" file gets created for drivers/gsc.
> I looked through linux-2.3/Makefile and drivers/Makefile and
> they both looked ok to me. So if someone could take a quick look
> at this....
> 
> in the meantime, i'll just "make clean" after changing my .config.

just so the number of misunderstandments doesn't get too large, we are
talking about .gsc.o.flags here.  Grant, could you check it is indeed
not generated by "make dep" ?  I've seen similar problems with fs/binfmt_som.c
and suspect it might turn out to be a problem in the make dep perl script.

	Philipp


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Hi,

I've only just really started to hack at the HIL driver, but
one thing I noticed off the bat is that the HIL_BASE defined
in hil.h is 0xf0821000 while the device base listed when 
I boot for the HIL is 0xf0201000.  This probably means it 
varies across different models.

Optimally I suppose the best thing would be to somehow 
find the device -- the code that prints out the hardware 
found seems to get strings from the "pdc" which I glean is
the "BIOS".  I suppose the only thing the HIL will have that
is unique is this string, or are there model invariant 
numbers like the PCI fn?  (I haven't been through every 
entry in the hardware database to see.)  Basically I'm
asking is there a better way than a strcmp on the pdc string?

Alternatively I suppose we could do what the alpha folk
have done and have a compile-time selection of the system type
(e.g. "avanti") which sets the values for various things like that.

--
Brian S. Julin



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From: Philipp Rumpf <prumpf@inwestnet.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HIL_BASE ("finding" devices)
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On Sun, Mar 12, 2000 at 03:52:52PM -0500, Brian S. Julin wrote:
> I've only just really started to hack at the HIL driver, but
> one thing I noticed off the bat is that the HIL_BASE defined
> in hil.h is 0xf0821000 while the device base listed when 
> I boot for the HIL is 0xf0201000.  This probably means it 
> varies across different models.

It probably does.   AFAIK, the HIL driver is pretty much a hack
Matthew did to get his 715's keyboard working (the 715 and keyboard
are here now and Matthew is in Ottawa, and I don't have it set up
so didn't work on the driver).

> Optimally I suppose the best thing would be to somehow 
> find the device -- the code that prints out the hardware 
> found seems to get strings from the "pdc" which I glean is
> the "BIOS".  I suppose the only thing the HIL will have that
> is unique is this string, or are there model invariant 
> numbers like the PCI fn?

There are indeed, hversion and sversion are the words you're looking
for.  See the register_driver for the current (broken IMHO) interface.

> Alternatively I suppose we could do what the alpha folk
> have done and have a compile-time selection of the system type
> (e.g. "avanti") which sets the values for various things like that.

No way.  The "machine vector" concept wouldn't work well for us - it
works for ppc and alpha because those machines usually have a relatively
limited number of setups - with most chipsets, you can only use one CPU
type;  Lasi is used with PA7100LC, PA7300LC, PA8000, PA8200, and PA8500,
and shares code with the PA7100 (?) version (ASP) as well.  Furthermore
PDC device detection is sane to a certain extent - a lot of devices PDC
doesn't tell us about though.

	Philipp Rumpf


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Someone was asking about the USB interfaces on the C3k/J5k/etc.  I just
took one of their keyboards and attached it to my laptop's USB port and
it worked fine (running Linux 2.3.51).  So as long as the UHCI controller
in the C3k is supported, the rest of the Linux USB layer is fine.  The
USB layer is used quite intensively by the Linux/PPC port (iMacs only have
USB keyboards) so there can't be any endian issues to take care of.


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From: Corne Beerse <beerse@ats.nld.alcatel.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP-UX application support?
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Steven Pritchard wrote:
> MEYER,ALAN C. \(HP-FtCollins,ex1\) said:
> > Also, I am assuming the install model will be to simply copy files from an
> > HP-UX system over to a PA/Linux system.  In particular, I have heard of no
> > plans to support HP-UX packages bundled in "SD" format.  Right?
> 
> The SD depot files are just tar files.  Supporting them would be
> trivial.  You can always untar it, move everything to the appropriate
> location, and run the scripts.  Making that automated (maybe with
> alien) probably wouldn't be at all difficult...

It's verry easy to hack something yourself: untar the file and have a look
at directories you don't think they belong to the tool. Have a look, they
are scripts and textfiles which contain information what to do. It is verry
easy to write a script (if you need it) for installation. The only question
is if your script is complete. The origional should run in GOD mode (root)
so yours must do so if other users need to use the commands you install.

CB

-- 
Everything should be as simple as possible but not simpler - A. Einstein
Corne' Beerse					| Alcatel Telecom Nederland
mailto:beerse@ats.nld.alcatel.nl		| Postbus 3292
talkto:+31(70)3079108 faxto:+31(70)3079191	| NL-2280 GG  Rijswijk


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HIL_BASE ("finding" devices)
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--- Philipp Rumpf <prumpf@inwestnet.de> wrote:
> On Sun, Mar 12, 2000 at 03:52:52PM -0500, Brian S.
> Julin wrote:
> > I've only just really started to hack at the HIL
> driver, but
> > one thing I noticed off the bat is that the
> HIL_BASE defined
> > in hil.h is 0xf0821000 while the device base
> listed when 
> > I boot for the HIL is 0xf0201000.  This probably
> means it 
> > varies across different models.
> 
> It probably does.   AFAIK, the HIL driver is pretty
> much a hack
> Matthew did to get his 715's keyboard working (the
> 715 and keyboard
> are here now and Matthew is in Ottawa, and I don't
> have it set up
> so didn't work on the driver).
> 
0xf0821000 is the HIL device address connected via ASP
(Model 715/33 and maybe others?). 0xf0201000 is the
HIL device address connected via WAX / LASI.

If you need a tester for a new HIL-driver on a 715/33
(like Matthew was using), please let me know. I have
been using Matthew's hack on my workstation until it
ceased to work, and it allowed me to see the first
responses at the sash prompt.

Ulrich


__________________________________________________
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From: "FINK,MARTIN \(HP-FtCollins,ex1\)" <martin_fink@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] USB
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The USB on HP workstations is OHCI, not UHCI.  Don't know if it makes
a difference from the driver perspective.

Martin

+=====================================================================+
| Martin Fink                 | E-mail: mailto:martin_fink@hp.com     |
| UNIX Development Lab        | Phone:  970-898-7076                  |
| Hewlett-Packard Co.         | FAX:    970-898-2838                  |
| 3404 East Harmony Road      | ===================================== |
| Ft. Collins, CO, USA, 80528 | Web:    http://www.hp.com/            |
+=====================================================================+    
 

> -----Original Message-----
> From: willy@thepuffingroup.com [mailto:willy@thepuffingroup.com]
> Sent: Sunday, March 12, 2000 5:52 PM
> To: parisc-linux@thepuffingroup.com
> Subject: [parisc-linux] USB
> 
> 
> 
> Someone was asking about the USB interfaces on the 
> C3k/J5k/etc.  I just
> took one of their keyboards and attached it to my laptop's 
> USB port and
> it worked fine (running Linux 2.3.51).  So as long as the 
> UHCI controller
> in the C3k is supported, the rest of the Linux USB layer is fine.  The
> USB layer is used quite intensively by the Linux/PPC port 
> (iMacs only have
> USB keyboards) so there can't be any endian issues to take care of.
> 
> --------------------------------------------------------------
> -------------
> To unsubscribe: send e-mail to 
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


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On Mon, Mar 13, 2000 at 08:23:38AM -0700, FINK,MARTIN (HP-FtCollins,ex1) wrote:
> The USB on HP workstations is OHCI, not UHCI.  Don't know if it makes
> a difference from the driver perspective.

oops, my mistake.  Linux already has an OHCI driver too..


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From: Philipp Rumpf <prumpf@inwestnet.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HIL_BASE ("finding" devices)
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Xref: news.gmane.org gmane.linux.ports.parisc:7014

> If you need a tester for a new HIL-driver on a 715/33
> (like Matthew was using), please let me know. I have
> been using Matthew's hack on my workstation until it
> ceased to work, and it allowed me to see the first
> responses at the sash prompt.

okay, I wasn't aware the HIL driver stopped working at all.  I'm just
setting up the 715 to see whether it can be convinced to go again.

	Philipp Rumpf


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From: "Bryan W. Headley" <bheadley@prismalink.com>
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Subject: [parisc-linux] 735 Tech Reference
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Hi, new pa-risc boy, got a 735 that's not booting (it can find the CDROM
fine, but xmap diag shows no hard disks, even when I have one plugged in
externally, that works fine elsewhere.) No doubt I have things
misconfigured. Does anyone know where hardware manual might be found? It
might explain why there's a F/W connector, but then two other F/W-like
connectors (unmarked) on the left-hand side (looking from front).

Once I'm up, I'll be asking if the restriction on 10.20 for
cross-compiling is still there; and if so, where/how to get an 11.x CD
(got a 10.20 and diag CDs from HP as Y2K upgrade kit). So if anyone
wants to share happy news up-front, that'd save me some time (I think)

--
Bryan W. Headley                     Phone: 312/913-9158
Chief Technology Officer             Fax:   312/913-9155
Prisma & Company                     Email: bheadley@prismalink.com




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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] 735 Tech Reference
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> Hi, new pa-risc boy, got a 735 that's not booting (it can find the CDROM
> fine, but xmap diag shows no hard disks, even when I have one plugged in
> externally, that works fine elsewhere.) No doubt I have things
> misconfigured. Does anyone know where hardware manual might be found? It
> might explain why there's a F/W connector, but then two other F/W-like
> connectors (unmarked) on the left-hand side (looking from front).

There are two SCSI controllers on the 735.  The F/W connector requires
differential drives which may be why the machine doesn't see your drive.
The single-ended controller connector is an HD-50.  On my 735, there is
a short jumper from the CPU module to the module for the internal hard
drive.  The two HD-50 connectors on the left (top) connect to each other
and the internal hard drive.  They don't need to be used if you are using
all external drives.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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John David Anglin wrote:

> > Hi, new pa-risc boy, got a 735 that's not booting (it can find the CDROM
> > fine, but xmap diag shows no hard disks, even when I have one plugged in
> > externally, that works fine elsewhere.) No doubt I have things
> > misconfigured. Does anyone know where hardware manual might be found? It
> > might explain why there's a F/W connector, but then two other F/W-like
> > connectors (unmarked) on the left-hand side (looking from front).
>
> There are two SCSI controllers on the 735.  The F/W connector requires
> differential drives which may be why the machine doesn't see your drive.
> The single-ended controller connector is an HD-50.  On my 735, there is
> a short jumper from the CPU module to the module for the internal hard
> drive.  The two HD-50 connectors on the left (top) connect to each other
> and the internal hard drive.  They don't need to be used if you are using
> all external drives.
>

Sounds like I need to open my box and determine if internal hard drive was removed
or not. This also explains that very short HD-50 cable (not meant to reach
anything, really). I have a nice non-differential HD to throw in as internal if
there are none inside. Don't you love eBay auctions :-) ?

>
> --
> J. David Anglin                                  dave.anglin@nrc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

--
Bryan W. Headley                     Phone: 312/913-9158
Chief Technology Officer             Fax:   312/913-9155
Prisma & Company                     Email: bheadley@prismalink.com




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From: Philipp Rumpf <prumpf@inwestnet.de>
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> Once I'm up, I'll be asking if the restriction on 10.20 for
> cross-compiling is still there; and if so, where/how to get an 11.x CD

you can cross-compile from x86 now (and it works very well).  Really,
since cross-compiling works, I only booted hpux to sniff around in their
kernel with adb.

> (got a 10.20 and diag CDs from HP as Y2K upgrade kit). So if anyone
> wants to share happy news up-front, that'd save me some time (I think)

If you want to boot HP/UX at all (that's a big if, imho), you shouldn't
use it for compiling.

	Philipp Rupmf


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Subject: Re: [parisc-linux] Assembly Language Changes
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On Sun, 12 Mar 2000, Philipp Rumpf wrote:

> Hello,
> over the last few days or so, I have been trying to get glibc to build and
> work for a Linux/PA-RISC target.  I came to believe it would be simpler to
> change certain aspects of the assembly language used than to keep working
> around them:

At least in the ELF toolchain (which, I think we did change the kernel
over to, didn't we?)  I've already begun freely banging the assembler
syntax into a more gas-like format...   

> The advantages to changing the assembly dialect we use are that using cpp
> to pre-process assembly instructions becomes a lot simpler (glibc makes
> heavy use of this);  the assembly language looks more similar to those
> used for other architectures that run Linux;  there is no difference
> between the pa1.1 and pa2.0 versions.

Agreed.  The original workarounds in the kernel were rather hideous, and
prevented us fron doing quite a few useful things.  (initcalls, anybody?)

Maximum software build support good.

> The disadvantage, obviously, is that we would need to keep separate
> binaries around to compile HP/UX assembly source;  also, the assembly
> files used by the kernel would need to be converted (and probably get
> readable to more people in the process).

Hmph...  I'm not sure how many people working on the port hold a deep
value in the ability to recompile HP/UX apps (or, in this case,
reassemble).  Just run the damn HP assembler if you feel a deep need to
run HP programs under the linux kernel (imho).

-- Sam



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> > over the last few days or so, I have been trying to get glibc to build and
> > work for a Linux/PA-RISC target.  I came to believe it would be simpler to
> > change certain aspects of the assembly language used than to keep working
> > around them:
> 
> At least in the ELF toolchain (which, I think we did change the kernel
> over to, didn't we?)  I've already begun freely banging the assembler
> syntax into a more gas-like format...   

nod.  I've got binutils, gcc, glibc, linux moved to the new assembly language
here, just waiting for everyone to have a chance to comment before committing.

> > The disadvantage, obviously, is that we would need to keep separate
> > binaries around to compile HP/UX assembly source;  also, the assembly
> > files used by the kernel would need to be converted (and probably get
> > readable to more people in the process).
> 
> Hmph...  I'm not sure how many people working on the port hold a deep
> value in the ability to recompile HP/UX apps (or, in this case,
> reassemble).  Just run the damn HP assembler if you feel a deep need to
> run HP programs under the linux kernel (imho).

it's a 10-line perl script to convert, so I tend to agree with dropping the
HP syntax completely.

	Philipp


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From: "MEYER,ALAN C. \(HP-FtCollins,ex1\)" <alan_meyer@hp.com>
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Here is a message from David Miller about proposed changes in 2.3 around VM
interfaces & cache coherency.

PA/Linux is not on the list and we should get our input to David.

It would be nice to have a single point of contact to David for the PA/Linux
view.

Matthew, John, Grant - one of y'all?

Alan

-----Original Message-----
From: David S. Miller [mailto:davem@redhat.com] 
Sent: Tuesday, March 14, 2000 2:53 AM
To: davem@redhat.com
Cc: cort@fsmlabs.com; rmk@arm.linux.org.uk; rth@cygnus.com;
paulus@linuxcare.com; anton@progsoc.uts.edu.au; jakub@redhat.com;
Jes.Sorensen@cern.ch; ralf@uni-koblenz.de; davidm@napali.hpl.hp.com;
gniibe@m17n.org; kkojima@rr.iij4u.or.jp
Subject: Linux-2.3.x cache coherency issues, proposed new architecture



Hello port maintainers,

Now that the page cache is really unified in 2.3.x I would
like to properly deal with some cache coherency issues and
kill a lot of old and poorly designed cruft we have in the
architecture-defined VM interfaces.

First, we have to start from what the issues are for
various architectures.  I list what I am decently aware of
below.  If your port is missing or your port is listed
but questions appear in it's section, _please_ fill me
in so I can be more knowledgable about your port for the
purposes of the proposed changes below.

IA64:

	I-cache aparently cannot see DMA activity?
	Or is it blind only to local cpu stores?

Sparc64:

	I-cache cannot see local cpu stores.

	D-cache is virtually indexed, and the most significant
	indexing bit is (1 << PAGE_SHIFT).  This creates a situation
	where illegal aliases can enter the cache if multiple mappings
	of a physical page are not all mapped at virtual addresses
	with bit "(1 << PAGE_SHIFT)" being the same.

Sparc:

	sun4c: Cpu has shared I/D cache which is virtually indexed
	       and virtually tagged (with mmu context info as well).
	       It is 64K (which is > PAGE_SIZE) and thus has the same
	       cache alias issues as sparc64's D-cache.

	       When mmu/tlb mappings are removed, all cache entries
	       referring to that mapping must be removed first.
	       The cpu will take an exception otherwise.  The reason
	       is that in order to perform a write-back properly,
	       the cpu must be able to get a virt->phys translation
	       from the tlb since the cache does not use physical
	       addresses in it's tags.

	sun4m: So many combinations of virtually indexed, physically
	       indexed, split I/D, split I/D + combined L2, coherent
	       with DMA, not coherent with DMA, etc. cache setups that
	       I don't even want to list them all.

MIPS:	Most R4x00 variants have the virtually indexed cache illegal
	alias issue.  In fact, many of the r4x00 chips will actually
	signal an exception if you create an illegal alias situation
	(ie. 2 lines exist in the cache at the same time which refer
	 to the same physical data)

Below I outline the first set of interfaces I'd like to put
into the kernel to definitively catch all kernel side cpu
accesses to page cache pages.  They are designed such that
you can do whatever you want, to deal with whatever problem
you have wrt. user vs. kernel views of physical pages wrt.
cache coherency or whatever.  Also, they are designed such that
ports which have totally coherent caches pay no performance
penalty whatsoever.

All other data transfers not caught by these interfaces below
are assumed to be done via "DMA".  And in such a case you need
to be aware of and deal with two cases:

1) CPU is not coherent with DMA activity, in which case your
   {pci,sbus,zorro,etc}_{map,unmap}_{single,sg}() implementation
   must take care of it.

2) PIO data transfers.  In this case you must make your
   {in,out}s{b,w,l}() implementation do whatever cache flushing
   is needed.

This, along with a proper setting of SHMLBA in asm/shmparam.h
should take care of all cache coherency issues imaginable to
mankind :-)

============================================================

/* Suggested page cache data transfer interfaces. */

/* Copy LEN bytes from kernel address KADDR to
 * kernel address (TO_PAGE + OFFSET).
 */
copy_page_cache_fromkernel(to_page, offset, kaddr, len);

/* Copy LEN bytes from kernel address (FROM_PAGE + OFFSET)
 * to kernel address KADDR.
 */
copy_page_cache_fromkernel(kaddr, from_page, offset, len);

/* Copy LEN bytes of data from user-space address UADDR
 * to kernel address (TO_PAGE + OFFSET).
 */
copy_page_cache_fromuser(to_page, offset, uaddr, len);

/* Copy LEN bytes of data from kernel address (FROM_PAGE + OFFSET)
 * to user-space address UADDR.
 */
copy_page_cache_touser(uaddr, from_page, offset, len);

/* Clear all PAGE_CACHE_SIZE bytes of kernel page PAGE. */
clear_page_cache(page);

/* Clear LEN bytes at kernel address (PAGE + OFFSET). */
clear_page_cache_partial(page, offset, len);

/* If local processor stores into a page cache page have
 * been via some mechanism _other_ than the above copy/clear
 * interfaces, the following must be invoked on PAGE before
 * it is marked "uptodate" by the kernel.
 */
flush_page_cache_page(page);

============================================================

Also, I have just submitted a patch to Linus which adds
a "vaddr" user virtual address argument to clear_page()
and copy_page().  (BTW, this allows a performance optimization
as well as a way to assist in virtual cache alias prevention,
since you know the user space virtual address you can create
a temporary local-cpu mmu mapping of the pages involved such
that the address at which you perform the copy loads and stores
is congruent to the cache lines the user space mapping will reference
them by, and if you have a clever software replacable tlb you
can just load these mappings by hand before the copy, save
away the tlb entries which were there before you started, and
restore the original mappings after the copy.  This allows to
handle page copy and clear operations with zero tlb activity
around the operations.  Sparc64 does just this in
arch/sparc64/lib/blockops.S and I intend to make various flavors
of sparc32 do something similar very soon.)

The above interfaces should allow a complete kill of
flush_page_to_ram() from the set of public interfaces.
I believe with some care it can also allow flush_icache_page()
to die.  The two interfaces mentioned in this paragraph are
very vague, and most people don't know what they even do
anymore or where the proper place is to make use of them.
Furthermore they can lead to inefficient ports, for cases
where one only needs to flush (certain) caches in some cases
but not everywhere flush_page_to_ram or flush_icache_page
are actually invoked.

Please send me commentary and suggestions as soon as possible
so that I can whip up the implementation of these ideas
and submit them to Linus "very soon". :-)

Thanks.

Later,
David S. Miller
davem@redhat.com


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Subject: Re: [parisc-linux] FW: Linux-2.3.x cache coherency issues, proposed new architecture
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> PA/Linux is not on the list and we should get our input to David.

in fact, Dave sent this to me and we discussed it.

	Philipp Rumpf


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I've managed to kill the linker from the x86 cross-binutils while building
a kernel.  Does anyone have any ideas what might be causing this?  Here's
what's happening:

hppa1.1-hp-linux-ld  -T /home/dmo/cvs/linux-2.3/arch/parisc/vmlinux.lds
arch/parisc/real/head.o  init/main.o init/version.o \
        --start-group \
        arch/parisc/kernel/pdc_cons.o arch/parisc/kernel/process.o
arch/parisc/real/real.o /home/dmo/cvs/linux-2.3/arch/parisc/lib/lib.a
arch/parisc/mm/mm.o arch/parisc/kernel/kernel.o arch/parisc/hpux/hpux.o
kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o arch/parisc/kernel/init_task.o \
        drivers/block/block.a drivers/char/char.o drivers/net/net.o
drivers/pci/pci.a drivers/gsc/gsc.a \
        net/network.a \
        /home/dmo/cvs/linux-2.3/arch/parisc/lib/lib.a
/home/dmo/cvs/linux-2.3/lib/lib.a  \
        --end-group \
        -o vmlinux
hppa1.1-hp-linux-ld: Warning: type of symbol `__ashrdi3' changed from 1 to
2 in ashrdi3.o
death: gsc_writeq type 1
hppa1.1-hp-linux-ld: can not size stub section: Bad value
make: *** [vmlinux] Segmentation fault (core dumped)

Dave
-- 
Dave O'Neill, Senior Linux Consultant, Linuxcare, Inc.
doneill@linuxcare.com, http://www.linuxcare.com/ 
Linuxcare. Support for the revolution.


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> hppa1.1-hp-linux-ld: Warning: type of symbol `__ashrdi3' changed from 1 to
> 2 in ashrdi3.o
> death: gsc_writeq type 1
> hppa1.1-hp-linux-ld: can not size stub section: Bad value

This is Sammyese for "undefined symbol gsc_writeq".  I haven't actually got
that code in the tree that builds (and, until yesterday, worked) here, so
no idea what blew up.  (actually, could you check we use gsc_(write|read)q
instead of ...d in gsc.h ?)

	Philipp Rumpf


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
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Subject: [parisc-linux] ramdisk problem with ELF kernel
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Hi all,

I switched my build environment from HP-UX 10.20 SOM
to cross compile on x86 ELF and building and booting a
kernel works fine. Compiling the kernel now only takes
5-10 minutes compared to 1 to 1 1/2 hours(!) on my
715/33. Great ! But (there is always a but) ...

Because there is currently no network driver for the
715/33 I need to boot with a ramdisk. In former times
there was copying ramdisk.bin to /usr/src/linux and
"make Image", but how to do this now (when "make
Image" no longer works)?

This is what I have tried:
I found the undocumented "-r" switch in palo to add a
ramdisk to the lif image. I tried both the original
ramdisk.bin and the compiled ramdisk.o but in both
cases the kernel is not able to detect the ramdisk.

Has anyone a solution to this?

Ulrich

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> Has anyone a solution to this?

I'm pretty sure I did use a ramdisk with ELF kernels by building it into the
kernel as we did for SOM kernels.

	Philipp Rumpf


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Will the new ELF compiler/binutils work on an Alpha
Linux box?  (I wouldn't think it would make a difference
what the host was but then there may be a subtlety there
I'm unaware of.)  My x86 is out of disk.

--
Brian S. Julin



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Subject: Re: [parisc-linux] ramdisk problem with ELF kernel
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= This is what I have tried:
= I found the undocumented "-r" switch in palo to add a
= ramdisk to the lif image. I tried both the original
= ramdisk.bin and the compiled ramdisk.o but in both
= cases the kernel is not able to detect the ramdisk.

PALO doesn't support ramdisks yet, which is why the option is
undocumented.  The palo boot loader (ipl) doesn't load the ramdisk even
if you used palo -r.  Our current linux kernel isn't wired to find
a boot-loaded ramdisk upon startup -- a minor modification but
one which hasn't happened.  I was avoiding that modification since
the old ramdisk scheme works with the HPUX boot loader and a palo-based
scheme won't.

Now that the hpux boot loader is useless[1] anyway, and now that everyone
is using palo, I'll look into ramdisks again.

	-Paul Bame


[1] A simple elf->som translator would be sufficient to enable the
hpux boot loader to work again.


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Subject: Re: [parisc-linux] Cross compiler -- on Alpha?
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> Will the new ELF compiler/binutils work on an Alpha
> Linux box?  (I wouldn't think it would make a difference
> what the host was but then there may be a subtlety there
> I'm unaware of.)  My x86 is out of disk.

It might.  The only real difference between alpha and i386 to run a
cross-compiler on is sizeof(long), and I don't think we rely on that
too heavily in gcc.

	Philipp Rumpf


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> [1] A simple elf->som translator would be sufficient to enable the
> hpux boot loader to work again.

Hmm... any chance someone is going to do this?  Considering I
have yet to see a shell and I have no way to restore my HPUX if
it breaks (I gave away the tape drive and there's no CD.)  
I'm not about to go partitioning my hard disk.  I need to boot
from a tftp server.  

Or can I still build a SOM kernel somehow?

--
Brian


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On Wed, Mar 15, 2000 at 12:28:20PM -0500, Brian S. Julin wrote:
> 
> 
> > [1] A simple elf->som translator would be sufficient to enable the
> > hpux boot loader to work again.
> 
> Hmm... any chance someone is going to do this?  Considering I
> have yet to see a shell and I have no way to restore my HPUX if
> it breaks (I gave away the tape drive and there's no CD.)  
> I'm not about to go partitioning my hard disk.  I need to boot
> from a tftp server.  

you can still boot from a tftp server using palo.  i agree this isn't
clear in the palo docs (i initially thought you couldn't either).
suggestions on making this more obvious gratefully received.


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On Wed, 15 Mar 2000, Ulrich Strelow wrote:

> Because there is currently no network driver for the
> 715/33 I need to boot with a ramdisk. In former times
> there was copying ramdisk.bin to /usr/src/linux and
> "make Image", but how to do this now (when "make
> Image" no longer works)?

Seems I may need to dust off my 715/33 here and see how far things have
come by now. Considering the size of the task and the limited resources it
is executed very well so far.

Thanks to all those involved. And Let me know where I can lend a hand as a
non-programmer. (Ok. I wrote some PHP3 stuff but is a different thing.) I
do have some skill involving documentation. (DocBook SGML by preferences.)

Hugo.

-- 
Hugo van der Kooij; Oranje Nassaustraat 16; 3155 VJ  Maasland
hvdkooij@caiw.nl	http://home.kabelfoon.nl/~hvdkooij/
--------------------------------------------------------------
Use of any of my email addresses for unsollicited (commercial)
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On Wed, 15 Mar 2000, Philipp Rumpf wrote:

> > Will the new ELF compiler/binutils work on an Alpha
> > Linux box?  (I wouldn't think it would make a difference
> > what the host was but then there may be a subtlety there
> > I'm unaware of.)  My x86 is out of disk.
> 
> It might.  The only real difference between alpha and i386 to run a
> cross-compiler on is sizeof(long), and I don't think we rely on that
> too heavily in gcc.

Wouldn't big endian vs little endian be an issue?

I know there is plenty of software out there that does not use proper
handling of pointers and that will break on my Alpha while you can get
away with it on intel based machines. The problem is due to bad coding but
it could be a good case to try and see if the code is clean enough.

Hugo.

-- 
Hugo van der Kooij; Oranje Nassaustraat 16; 3155 VJ  Maasland
hvdkooij@caiw.nl	http://home.kabelfoon.nl/~hvdkooij/
--------------------------------------------------------------
Use of any of my email addresses for unsollicited (commercial)
    email is a clear intrusion of my privacy and illegal!


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On Wed, Mar 15, 2000 at 07:30:40PM +0100, Hugo.van.der.Kooij@caiw.nl wrote:
> Wouldn't big endian vs little endian be an issue?

unlikely.  parisc is big endian and i386 is little endian.  people compile
parisc kernels on both machines.


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To: Hugo.van.der.Kooij@caiw.nl
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Xref: news.gmane.org gmane.linux.ports.parisc:7035

On Wed, Mar 15, 2000 at 07:26:08PM +0100, Hugo.van.der.Kooij@caiw.nl wrote:
> Thanks to all those involved. And Let me know where I can lend a hand as a
> non-programmer. (Ok. I wrote some PHP3 stuff but is a different thing.) I
> do have some skill involving documentation. (DocBook SGML by preferences.)

the website is in CVS so anyone can contribute to it and fix mistakes
or update documentation if it starts to succumb to bitrot.  i've been
slowly going through it all but i'm sure the first documents i touched
have started to rot again and there are documents i haven't got to yet.


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From: Philipp Rumpf <prumpf@inwestnet.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Cross compiler -- on Alpha?
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> > It might.  The only real difference between alpha and i386 to run a
> > cross-compiler on is sizeof(long), and I don't think we rely on that
> > too heavily in gcc.
> 
> Wouldn't big endian vs little endian be an issue?

PA-RISC is (usually) big-endian;  Alpha and i386 are little-endian.  Cross-
compiling from i386 works, so this shouldn't be an issue for cross-compiling
from Alpha.

	Philipp Rumpf


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Subject: [parisc-linux] Merge with Linus 2.3.99pre1
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Linus released 2.3.99pre1 today which marks the start of the 2.4
release effort.  We'd like to merge Linus' changes into our tree on
Friday, starting around 11am EST (8am PST, 4pm UTC, 5pm CET).  If you
have any local changes which can go back into our tree, now would be a
good time to commit them.  If you're in the middle of something which
will be disrupted by this, now would also be a good time to shout `STOP'.

People who wish to help are welcome.  Please contact me if you feel you
can help.


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Subject: Re: [parisc-linux] Merge with Linus 2.3.99pre1
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Later today I will post a list of files that will need to be manually
merged or checked as part of the merge effort.  We will need an "owner"
for each of these files so that we can quickly resolve any problems. 
The last merge went smoothly (as smoothly as possible) due to everyone's
cooperation.  Hopefully this time we will spend even less time in merge
hell :)

	- Mike.


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From: Philipp Rumpf <prumpf@inwestnet.de>
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Subject: Re: [parisc-linux] Assembly Language Changes
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I haven't received any negative comments about the proposed changes yet,
and think the following changes should become effective soon:

>  - Labels should always use ':'
>  - mnemonics in the first column should be interpreted normally.
>  - register names should always start with '%', not be specified by an
>    integer
>  - ';' should be used rather than '!' to separate multiple statements
>    on the same line
- '!' replaces ';' as the line comment character

I don't think a line comment character should be necessary for new code -
C comments (thats /* comment */, not // comment\n) work fine.

So, still no objections ?

	Philipp Rumpf


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From: "Brian S. Julin" <bri@mojo.calyx.net>
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Subject: Re: [parisc-linux] Cross compiler -- on Alpha?
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> I know there is plenty of software out there that does not use proper
> handling of pointers and that will break on my Alpha while you can get
> away with it on intel based machines. The problem is due to bad coding but
> it could be a good case to try and see if the code is clean enough.

OK, well I gave it a spin -- the linker compiled, with a lot of
warnings about integers of different size than pointers.  The rest
of binutils built but I couldn't build gas, I don't think it was
architecture related though:

gcc -g -O2 -o .libs/as-new app.o as.o atof-generic.o bignum-copy.o cond.o
depend.o dwarf2dbg.o ecoff.o ehopt.o expr.o flonum-copy.o flonum-konst.o
flonum-mult.o frags.o hash.o input-file.o input-scrub.o listing.o
literal.o macro.o messages.o output-file.o
read.o sb.o stabs.o subsegs.o symbols.o write.o tc-hppa.o obj-elf.o
atof-ieee.o ../opcodes/.libs/libopcodes.so ../bfd/.libs/libbfd.so
../libiberty/libiberty.a -lm -Wl,--rpath -Wl,/usr/src/parisc/lib
tc-hppa.o: In function `tc_gen_reloc':
/usr/src/parisc/binutils/gas/./config/tc-hppa.c:3972: undefined reference
to `_bfd_elf64_hppa_gen_reloc_type'
/usr/src/parisc/binutils/gas/./config/tc-hppa.c:3972: undefined reference
to `_bfd_elf64_hppa_gen_reloc_type'
collect2: ld returned 1 exit status
make[3]: *** [as-new] Error 1

--
Brian


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Subject: Re: [parisc-linux] Cross compiler -- on Alpha?
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On Wed, Mar 15, 2000 at 05:30:03PM -0500, Brian S. Julin wrote:
> /usr/src/parisc/binutils/gas/./config/tc-hppa.c:3972: undefined reference
> to `_bfd_elf64_hppa_gen_reloc_type'
> /usr/src/parisc/binutils/gas/./config/tc-hppa.c:3972: undefined reference
> to `_bfd_elf64_hppa_gen_reloc_type'

elf_64_?  I think you may have misconfigured it.  were you following the
recipe on the website?


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From: David Huggins-Daines <dhd@linuxcare.com>
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"Brian S. Julin" <bri@mojo.calyx.net> writes:

> tc-hppa.o: In function `tc_gen_reloc':
> /usr/src/parisc/binutils/gas/./config/tc-hppa.c:3972: undefined reference
> to `_bfd_elf64_hppa_gen_reloc_type'
> /usr/src/parisc/binutils/gas/./config/tc-hppa.c:3972: undefined reference
> to `_bfd_elf64_hppa_gen_reloc_type'
> collect2: ld returned 1 exit status
> make[3]: *** [as-new] Error 1

Yeah, the problem here is that some part of the binutils configure
script is getting the host and target word size confused and thus
thinking that it should be building for an ELF64 instead of ELF32
target.

You cna fix this by undefining BFD64 in tc-hppa.c and possibly some
other place, I think.  I didn't commit this to CVS because it's really
the wrong thing to do. Someone who actually understands the binutils
configuration and build system should be able to apply the correct fix...


-- 
David Huggins-Daines, Senior Linux Consultant, Linuxcare, Inc.
613.562.1239 tel
dhuggins@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Michael Ang <mang@subcarrier.org>
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Subject: [parisc-linux] merge strategy - file owners needed
Date: Wed, 15 Mar 2000 18:17:26 -0500
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Here's the proposed plan for Friday:

The tree closes at 11am EST (8am PST, 4pm UTC, 5pm CET) - no one checks
in.
I lay down LINUS_2399_PRE1_PREMERGE before starting the merge.
I merge all the files that have been changed by Linus only

I lay down LINUS_2399_PRE1_FIXUP.
The tree is still "closed", but now people can do checkins related to
merging.
The files requiring manual attention are dealt with (by their "owners")
and checked in.
Co-ordination via IRC.

I lay down LINUS_2399_PRE1_DEVEL to mark the end of the merge.
The tree opens for general development (probably mid afternoon).


These are the files that will need some special lovin' on Friday. 
Please step up and agree to "own" some files and do the merging for
those files.  To view the diff between the current tip version and
Linus' version try "cvs di -r1. -rlinus foo.c".

Files modified both by us and Linus:
Makefile,v
drivers/block/rd.c,v
drivers/char/serial.c,v
drivers/net/Makefile,v
drivers/net/Space.c,v
drivers/net/eepro100.c,v
drivers/net/pcnet32.c,v
drivers/pci/pci.c,v
drivers/scsi/Makefile,v
drivers/scsi/hosts.c,v
init/main.c,v
kernel/sched.c,v

Files we touched since last merge and rm'ed in Linus' 2.3.99 pre1
drivers/net/tulip.c,v
(There's a reworked tulip driver in /drivers/net/tulip/ - someone needs
to figure out the Right Thing to do here.)


Please let me know if you have any questions or suggestions.  The last
merge went as smoothly as such things go, and if everyone helps out,
this one should be no different.

	- Mike.


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From: Jason Eckhardt <jason@equator.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] Boot #4 and source on ftp site
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Grant Grundler <grundler@cup.hp.com> wrote:

>
> Works on B132L (early version B-class). Will try it on a newer
> C-class next.
>
  
  Thanks for helping out.

> One gripe: The test code doesn't automatically reboot the box.
> I use remote consoles and have to walk over to the machine room
> to cycle power...

  Sorry about that..my HP sits at my feet and I just hit the TOC button.
  I'll add this to the next test version.

>remember I'm doing this in my "spare" time.

  Same here.

  Jason.

  


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ramdisk problem with ELF kernel
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To: Ulrich Strelow <ulrich_strelow@yahoo.com>, parisc-linux@thepuffingroup.com
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Am Wed, 15 Mar 2000 schrieb Ulrich Strelow:
> Hi all,

Hi Ulrich,

> 
> I switched my build environment from HP-UX 10.20 SOM
> to cross compile on x86 ELF and building and booting a
> kernel works fine. Compiling the kernel now only takes
> 5-10 minutes compared to 1 to 1 1/2 hours(!) on my
> 715/33. Great ! But (there is always a but) ...
> 
> Because there is currently no network driver for the
> 715/33 I need to boot with a ramdisk. 

I just checked the hardware-database, and it seems that the 715/33 has a
standard LASI-LAN-Adaptor (i82596, (old driver: Apricot)).
If you enable lasi-support and the "lasi-ethernet"-driver from the
network-devices, you should be able to boot with root-nfs.....


> In former times there was copying ramdisk.bin to /usr/src/linux and
> "make Image", but how to do this now (when "make
> Image" no longer works)?
> 
> This is what I have tried:
> I found the undocumented "-r" switch in palo to add a
> ramdisk to the lif image. I tried both the original
> ramdisk.bin and the compiled ramdisk.o but in both
> cases the kernel is not able to detect the ramdisk.
> 
> Has anyone a solution to this?
> 
> Ulrich

Helge.


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From: "Gyula Matics" <gyula_matics@hp.com>
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Subject: Re: [parisc-linux] ramdisk problem with ELF kernel
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> I just checked the hardware-database, and it seems that the 715/33 has a
> standard LASI-LAN-Adaptor (i82596, (old driver: Apricot)).
> If you enable lasi-support and the "lasi-ethernet"-driver from the
> network-devices, you should be able to boot with root-nfs.....

The problem is, that it has ASP not LASI. The MAC address is not returned
by the PDC call the current driver is using thus the driver gives up.

Gyula


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From: Philipp Rumpf <prumpf@inwestnet.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Merge with Linus 2.3.99pre1
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On Wed, Mar 15, 2000 at 02:03:09PM -0500, willy@thepuffingroup.com wrote:
> Linus released 2.3.99pre1 today which marks the start of the 2.4
> release effort.  We'd like to merge Linus' changes into our tree on
> Friday, starting around 11am EST (8am PST, 4pm UTC, 5pm CET).

I don't think merging with 2.3.99pre1 before verifying it works on at least
one other non-x86 architecture is a good idea.  I'd also prefer it if someone
tried nfsroot aso with it before.

Wouldn't it be a good idea to choose a kernel that has been released for more
than 2 days for merging ?

> If you have any local changes which can go back into our tree, now would be a
> good time to commit them.

I do, but am still waiting for reactions to the Assembly Language Changes
thread.

> If you're in the middle of something which
> will be disrupted by this, now would also be a good time to shout `STOP'.

My changes can as easily be merged after we moved to 2.3.99pre1 as they can
now.

	Philipp


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Subject: Re: [parisc-linux] Merge with Linus 2.3.99pre1
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On Thu, Mar 16, 2000 at 12:15:25PM +0100, Philipp Rumpf wrote:
> On Wed, Mar 15, 2000 at 02:03:09PM -0500, willy@thepuffingroup.com wrote:
> > Linus released 2.3.99pre1 today which marks the start of the 2.4
> > release effort.  We'd like to merge Linus' changes into our tree on
> > Friday, starting around 11am EST (8am PST, 4pm UTC, 5pm CET).
> 
> I don't think merging with 2.3.99pre1 before verifying it works on at least
> one other non-x86 architecture is a good idea.  I'd also prefer it if someone
> tried nfsroot aso with it before.

It works on sparc (Josh Uziel has it running).  Your point about trying
nfs-root is a good one.  I shall test that today.

> Wouldn't it be a good idea to choose a kernel that has been released for more
> than 2 days for merging ?

By Friday it'll have been out for 4 days :-)  If there's anything
catastrophic, I think we would know by now.

> > If you have any local changes which can go back into our tree, now would be a
> > good time to commit them.
> 
> I do, but am still waiting for reactions to the Assembly Language Changes
> thread.

i think that anyone who wants to object has had sufficient time to do so
by now.

> > If you're in the middle of something which
> > will be disrupted by this, now would also be a good time to shout `STOP'.
> 
> My changes can as easily be merged after we moved to 2.3.99pre1 as they can
> now.

I guess it's your call then.


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From: Michael Ang <mang@subcarrier.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.3.99pre1 merge CANCELLED
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There have now been reported several problems with the 2.3.99pre1
release, so prumpf is right that we should hold off merging for now. 
Once there is a stable 2.3.99preX release, we should merge to that
kernel since it has been some time since our last merge.

This has been a test of the emergency merge system, we now return you to
our (ir)regularly scheduled hacking.

	- Mike.

Philipp Rumpf wrote:
> 
> On Wed, Mar 15, 2000 at 02:03:09PM -0500, willy@thepuffingroup.com wrote:
> > Linus released 2.3.99pre1 today which marks the start of the 2.4
> > release effort.  We'd like to merge Linus' changes into our tree on
> > Friday, starting around 11am EST (8am PST, 4pm UTC, 5pm CET).
> 
> Wouldn't it be a good idea to choose a kernel that has been released for more
> than 2 days for merging ?


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= There have now been reported several problems with the 2.3.99pre1
= release, so prumpf is right that we should hold off merging for now. 
= Once there is a stable 2.3.99preX release, we should merge to that
= kernel since it has been some time since our last merge.

We could use this opportunity to start removing our SOM __setup
hacks since we're now based on ELF?

	-P


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Subject: Re: [parisc-linux] 2.3.99pre1 merge CANCELLED
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Xref: news.gmane.org gmane.linux.ports.parisc:7051

On Fri, Mar 17, 2000 at 10:18:59AM -0700, Paul Bame wrote:
> = There have now been reported several problems with the 2.3.99pre1
> = release, so prumpf is right that we should hold off merging for now. 
> = Once there is a stable 2.3.99preX release, we should merge to that
> = kernel since it has been some time since our last merge.
> 
> We could use this opportunity to start removing our SOM __setup
> hacks since we're now based on ELF?

Certainly.


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From: "Bryan W. Headley" <bheadley@prismalink.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.3.99pre1 merge CANCELLED
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Personally, I'd merge now regardless of their situation. If the goal is to be
in the 2.4 baseline, then the rest of the development
community needs to see that the addition of the parisc code does not
negatively effect things.  If not, and it's a 2.5 delivery, we still
have to be firmly rooted in 2.4, when the two trees split off.

Also, the changes required to fix whatever's wrong with 2.3.99pre1 may be in
the realm of 3-4 files; what's the manifest for merging look like in
comparison, and what is the likelihood of the 3-4 (or whatever the count)
files between what you are merging/contributing and what they are fixing
overlapping each other?

Even if they do overlap, I'd rather manage the 1-2 line "patches" they put
into those overlapped files than continually hold off doing the merge.  Either
road, the sooner you can drop the manifest of the files to merge from "the
whole distribution" to a more manageable 2-5 files, plus arch/pa-risc, the
better.

The sooner we're in sync to something, the easier it'll be to keep in sync.
The early 2.4's will go fast, as things forgotten to be merged, or not merged
right and ferreted out and fixed. (One of the reasons I dislike the parallel
development paths: none of us have good enough revision control tools to
notice that something fixed in 2.2 after branch-off did not propagate to 2.3
as it should -- ah, for a PD Clearcase!)


--
Bryan W. Headley                     Phone: 312/913-9158
Chief Technology Officer             Fax:   312/913-9155
Prisma & Company                     Email: bheadley@prismalink.com




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Subject: Re: [parisc-linux] 2.3.99pre1 merge CANCELLED
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On Fri, 17 Mar 2000, Bryan W. Headley wrote:

> The early 2.4's will go fast, as things forgotten to be merged, or not merged
> right and ferreted out and fixed. (One of the reasons I dislike the parallel
> development paths: none of us have good enough revision control tools to
> notice that something fixed in 2.2 after branch-off did not propagate to 2.3
> as it should -- ah, for a PD Clearcase!)
> 

  While CVS isn't the perfect revision control system, I would use almost
  anything before ever touching ClearCase again...the intolerable slowness,
  the endless clearcase admin issues, the more-time-being-pissed-off-at-
  clearcase-than-doing-real-work issues, ... 
  jason.

> 
> --
> Bryan W. Headley                     Phone: 312/913-9158
> Chief Technology Officer             Fax:   312/913-9155
> Prisma & Company                     Email: bheadley@prismalink.com
> 


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From: rob fleming <rfleming@cc.weber.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 712/60
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    I realize that this may not be a question that can be answered from
the group, but here goes.
I bought a schools old machine 712/60 to be exact.  I tried booting it
from home and found that my monitor doesn't work well with the graphics
cards initial settings.  (Completely unreadable).  I took it to work one
afternoon and it boots to the point where HPUX tries reading the
licences for the machine and dies.  Does anyone know how to change the
graphics boot mode?  I not longer have the option use the other monitor
at work to try and fix so I will take any suggestions.

Rob

   ___  ___       __         |  Name  : Robert Fleming
  /  / /  /____  (__)__  ___ | E-mail : rfleming@cc.weber.edu
 /  /_/  /  _  \/  /\  \/  / |    day : Solaris, HP-UX, Linux, WinNT, Novell
 \___,__/__//__/__/ /__/\__\ |  night : FreeBSD-Current, OpenLinux, Mandrake




From - Thu Nov 08 21:12:12 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] Boot #4 and source on ftp site
Date: Fri, 12 Mar 1999 15:03:46 -0800
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Xref: news.gmane.org gmane.linux.ports.parisc:7055

Jason Eckhardt wrote:
> 
> Boot test #4: This is essentially the same code as #3 but I have taken
> out some delays, modified the cache flush routines, and turned
...

Works on a fairly new 9000/782/C200+
[Party!]

cheers,
grant


Firmware Version  6.1

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache
  ---------  --------   ---------------------  -----------------  -------------
      0      200 MHz    Active                 Functional         512 KB/1 MB

  Central Bus Speed (in MHz) :        120

  Available memory (bytes)    : 268435456
  Good memory required (bytes):   21610496
  Primary boot path:    PCI1.13.0
  Alternate boot path:  SESCSI.2.0
  Console path:         GSC1.0.0
  Keyboard path:        PS2

CPU 0
WARNING:  Self tests have been disabled as a result of FASTBOOT
          being enabled.  To enable self tests, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.
WARNING:  Memory has been initialized, but not tested as a result of
          FASTBOOT being enabled.  To test memory, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


------- Main Menu -------------------------------------------------------------

        Command                         Description
        -------                         -----------
        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration [<command>]       Access Configuration menu/commands
        INformation [<command>]         Access Information menu/commands
        SERvice [<command>]             Access Service menu/commands

        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command > pa

  Primary boot path:    PCI1.13.0

  Alternate boot path:  SESCSI.2.0

  Console path:         GSC1.0.0

  Keyboard path:        PS2

Main Menu: Enter command > bo pci1.12.0
Interact with IPL (Y, N, Q)?> n

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.

------------------------------------------------------------------------------

PARISC/Linux Bootstrap Version 0.2 (non-interactive)
By Jason Eckhardt
Built Thu Mar 11 16:01:50 CST 1999 by jason@sathanas

IPL_DEBUG: Page zero parameters:
  P0_IMM_max_mem:          268435456 (256 MB)
  P0_BOOTCPU_10msec:       2000000 (200 MHz)
  P0_BOOTCPU_mem_free:     0x0000C000
  P0_BOOTCPU_hpa:          0xFFFA0000
  P0_BOOTCPU_pdc:          0x00008000
  P0_COUT_iodc_io:         0x0000C000
  P0_CIN_iodc_io:          0x0000C000
  P0_BOOTDEV_iodc_io:      0x00016000
  P0_COUT_class:           0x00000007
  P0_CIN_class:            0x00000007
  P0_BOOTDEV_class:        0x00000001
Reading parameters...done.
Size = 28672 bytes, entry = 0x00001000, location = 0x0002B040.
Loading kernel...done.
Transferring control to kernel.

*********************************************************

VMLINUX 0.0: Dummy kernel image loaded and executing!


It is now safe to reboot.


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From: "Nathaniel F. Thompson" <haplo@frii.com>
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Subject: Re: [parisc-linux] 712/60
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Cc: PA-risc Linux <parisc-linux@thepuffingroup.com>
To: rob fleming <rfleming@cc.weber.edu>
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The easiest way to change the monitor options is to hit the tab key to
cycle through the resolutions and frequencies.

Nate

On Fri, 17 Mar 2000, rob fleming wrote:

> 
>     I realize that this may not be a question that can be answered from
> the group, but here goes.
> I bought a schools old machine 712/60 to be exact.  I tried booting it
> from home and found that my monitor doesn't work well with the graphics
> cards initial settings.  (Completely unreadable).  I took it to work one
> afternoon and it boots to the point where HPUX tries reading the
> licences for the machine and dies.  Does anyone know how to change the
> graphics boot mode?  I not longer have the option use the other monitor
> at work to try and fix so I will take any suggestions.
> 
> Rob
> 
>    ___  ___       __         |  Name  : Robert Fleming
>   /  / /  /____  (__)__  ___ | E-mail : rfleming@cc.weber.edu
>  /  /_/  /  _  \/  /\  \/  / |    day : Solaris, HP-UX, Linux, WinNT, Novell
>  \___,__/__//__/__/ /__/\__\ |  night : FreeBSD-Current, OpenLinux, Mandrake
> 
> 
> 
> ---------------------------------------------------------------------------
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] .depend file for drivers/gsc?
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Philipp Rumpf wrote:
> just so the number of misunderstandments doesn't get too large, we are
> talking about .gsc.o.flags here.  Grant, could you check it is indeed
> not generated by "make dep" ?

I might be confused about how the dependencies are worked out.
I thought "make dep" created ".depend" files.
And the ".depend" file is included by the local makefile.

Anyway, is this what you wanted to know?
# ls -l drivers/gsc/.gsc.o.flags
-rw-rw----   1 grundler users         276 Mar 11 11:32 drivers/gsc/.gsc.o.flags

# rm drivers/gsc/.gsc.o.flags
# make dep
...
# ls -l drivers/gsc/.gsc.o.flags
ls: drivers/gsc/.gsc.o.flags: No such file or directory
# ls -l drivers/*/.depend
-rw-rw----   1 grundler users        9721 Mar 18 00:10 drivers/atm/.depend
-rw-rw----   1 grundler users       57571 Mar 18 00:09 drivers/block/.depend
-rw-rw----   1 grundler users       10597 Mar 18 00:09 drivers/cdrom/.depend
-rw-rw----   1 grundler users      101373 Mar 18 00:09 drivers/char/.depend
...



thanks,
grant


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From: rob fleming <rfleming@cc.weber.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 712/60
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rob fleming wrote:

>     I realize that this may not be a question that can be answered from
> the group, but here goes.
> I bought a schools old machine 712/60 to be exact.  I tried booting it
> from home and found that my monitor doesn't work well with the graphics
> cards initial settings.  (Completely unreadable).  I took it to work one
> afternoon and it boots to the point where HPUX tries reading the
> licences for the machine and dies.  Does anyone know how to change the
> graphics boot mode?  I not longer have the option use the other monitor
> at work to try and fix so I will take any suggestions.
>
> Rob
>
>    ___  ___       __         |  Name  : Robert Fleming
>   /  / /  /____  (__)__  ___ | E-mail : rfleming@cc.weber.edu
>  /  /_/  /  _  \/  /\  \/  / |    day : Solaris, HP-UX, Linux, WinNT, Novell
>  \___,__/__//__/__/ /__/\__\ |  night : FreeBSD-Current, OpenLinux, Mandrake
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
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I found a solution.   The problem is that the boot rom (1.3) has an option
built in to define the graphics mode to be supported while it works out what os
or configuration to boot.   "monitor X" is specified if you hit ESC before it
boots the os and you then have the option of choosing 1 .. X monitor
freequencies.  They are then used from that point on when the machines is
turned on.   I tried the tab key but I guessing this has something to do with
either x or the os which aren't on this machine.  Aparently I accidentally
nuked the drive some time ago and had forgotten about it.   I tore into the
case on this one looking for dip switches which were no where to be found.   In
fact this machine hasn't any jumpers at all the board is clean of then.

Rob

--
   ___  ___       __         |  Name  : Robert Fleming
  /  / /  /____  (__)__  ___ | E-mail : rfleming@cc.weber.edu
 /  /_/  /  _  \/  /\  \/  / |    day : Solaris, HP-UX, Linux, WinNT, Novell
 \___,__/__//__/__/ /__/\__\ |  night : FreeBSD-Current, OpenLinux, Mandrake




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From: rob fleming <rfleming@cc.weber.edu>
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Subject: Re: [parisc-linux] Neat hardware on 712.
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Just another thing to think about.  The 712 has some other features I posted a monitor issue under 712/60 a few days ago listing a problem and solution.  I also found that though most think the light on the case next to the power button is there for looks is has a warning function similar to what was posted about the monitor and the missing card.   I have found that if and OS is not on the disk you will get a blinking light messaging
something wrong.   Just thought I would throw that out there.

Rob

--
   ___  ___       __         |  Name  : Robert Fleming
  /  / /  /____  (__)__  ___ | E-mail : rfleming@cc.weber.edu
 /  /_/  /  _  \/  /\  \/  / |    day : Solaris, HP-UX, Linux, WinNT, Novell
 \___,__/__//__/__/ /__/\__\ |  night : FreeBSD-Current, OpenLinux, Mandrake




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From: "Bryan W. Headley" <bheadley@prismalink.com>
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Subject: [parisc-linux] Notice that pre2 is out
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Arrived sometime Sunday. Lots of file movement; don't know what changed
yet. I was up to drivers/char with pre1, and expect I can apply
pre1_to_pre2 patches without much harm. Sunday was mostly a "get 6.2
beta working/get the 735 working". The latter is done, and it boots
10.20 and generally looks smug with itself. So that's good; gives me a
real machine to test merged baseline with. The x86 machine I was putting
6.2 on died, perhaps for the last time. I have an old RS/6000 that needs
a port that can take it's slot very easily...

--
Bryan W. Headley                     Phone: 312/913-9158
Chief Technology Officer             Fax:   312/913-9155
Prisma & Company                     Email: bheadley@prismalink.com




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From: "T.J.Yang" <tjyang@myrealbox.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Need second ethernet card connector on a 712 hp wks
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Hi, there

I am lucky enough to acquire a 712/100 machine with second
ethernet card(both AUI/RS232) on it. But the problem is 
that I can't find the connector for it.

It has three rows of pins (9+9+8) while the reqular
AUI is 8+7. 

The system is running 10.20 and lan1 is congiured to
be 192.168.2.1 and accpeted the ping back.

Anybody know where can I find the connector(adpator) ?

So close yet so far !!!

Thanks in advance

tj


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Subject: [parisc-linux] HP 712 wks owner/technical on-line documentation ?
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Hi, again

I tried very hard to locate the 712 wks manuals on 
http://docs.hp.com/hpux/systems/ with no luck.

Anyone can give me a pointer where to find it ?


tj


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From: "Rajiv Dighe" <rdighe@nortelnetworks.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Need second ethernet card connector on a 712 hp wks
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Do you know what the part number for the card is? If you can e-mail the part number, it will be helpful in determining what sort of connector is needed.

--Rajiv


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Another question for my 712/100 wks. 
I am thinking of putting a floppy disk drive into the
empty seond bay. The ioscan output strongly indicate
the floppy disk is a reqular PC floppy drive. 

on the hp mother board, the floppy disk connetion cable
looks alright with the pc one but the power cable is 
different. It only has two wires while the PC one has
four. (That is why it is imporatent to locate the 
712/100 owner's/technical manual).

I don't have the multimeter with me now to check on the 
voltage. 

Perhaps someone done this before can help me out.

Thanks again


tj


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On Mon, Mar 20, 2000 at 02:29:47PM +0000, T.J.Yang wrote:
> Hi, again
> 
> I tried very hard to locate the 712 wks manuals on 
> http://docs.hp.com/hpux/systems/ with no luck.
> 
> Anyone can give me a pointer where to find it ?

I can't, but the Hardware Compatibility List is linked from the puffin
group documentation page and it has a certain amount of detail in it.
It is over 200 pages and contains details of many machines other than
the 712, so you probably don't want to print it all out.


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] Boot #4 and source on ftp site
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	I  compiled without libmilli.a and it did compile.
	File ipl_s.s says 
	The object code is converted to LIF (logical interchange format)
	and then at the beginning of the boot media.

	So how do I convert the binary "ipl" to LIF. I tried "lifinit"
	and "mkboot" combination. But no luck, I keep getting 
	
	"Bad IPL size" and "Error reading IPL" error messages. 

	I tried "dd" also on the raw disk. No luck with that either.

	So my question is how to place built "ipl" binary at the
	appropriate place on the disk so that PDC finds it. Any magic
	combination of commands ? Looks like I am missing something
	obvious.


Thanks in advance,

-pkd

On Thu, 11 Mar 1999, Jason Eckhardt wrote:

> 
> Boot test #4: This is essentially the same code as #3 but I have taken
> out some delays, modified the cache flush routines, and turned
> verbose (debug) mode back on. I want to make sure that not having the delays
> makes no difference and that no characters get dropped when there is a lot
> of text (as in debug mode). Please let me know if the test still passes
> as before. Hopefully this will be the last test for a while. Kernel work
> comes next.
> 
> I have uploaded the binary as well as a new source drop to the ftp site. The
> source is now GPL'd and a detailed README is included which gives an overview
> of the boot code operation. This source supersedes any previous source you
> may have laying around.
> 
> ftp from sod.res.cmu.edu:/pub/parisc/hilo
>   boot_rel_0.2.tar.gz        The latest source code and documentation.
>   bootstrap_4.bin.gz         Bootstrap binary #4. 
> 
> Regards, 
> Jason Eckhardt.
> 
> -------------------------------------------------------------------------
> To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 
> 


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> On Mon, Mar 20, 2000 at 02:29:47PM +0000, T.J.Yang wrote:
> > Hi, again
> > 
> > I tried very hard to locate the 712 wks manuals on 
> > http://docs.hp.com/hpux/systems/ with no luck.
> > 
> > Anyone can give me a pointer where to find it ?
> 
> I can't, but the Hardware Compatibility List is linked 
from the puffin
> group documentation page and it has a certain amount of 
detail in it.
> It is over 200 pages and contains details of many 
machines other than
> the 712, so you probably don't want to print it all out.
> 

Thanks for the good pointer. I found my second lan/serial 
card's part number at 
http://puffin.external.hp.com/docs/980723ng.pdf under 
interfaces section.

Thanks


tj



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Subject: Re: [parisc-linux] Need second ethernet card connector on a 712 hp wks
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"T.J.Yang" wrote:
> Hi, there
> 
> I am lucky enough to acquire a 712/100 machine with second
> ethernet card(both AUI/RS232) on it. But the problem is 
> that I can't find the connector for it.
> 
> It has three rows of pins (9+9+8) while the reqular
> AUI is 8+7. 

tj,
I've already asked about this "y-cable" and posted the part numbers
last month. Please check the archive. I have three of the LAN/SERIAL
combo cards (aka lasi-on-a-card) but no y-cables.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Need second ethernet card connector on a 712 hp
 wks
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Hi
 I have a 715/50 running on my LAN (setiathome) I found an old AUI -> BNC
(10Base2) and used it with the AUI it tranfers at over 1024kb/s with my
SMC cards in my Linux box, I'll never buy a generic NE2k again. 

 AUI->BNC aren't real cheap you'll have to shop around to get a good
price I've seen on egghead for $35 
Terry


On Mon, 20 Mar 2000, T.J.Yang wrote:

> Hi, there
> 
> I am lucky enough to acquire a 712/100 machine with second
> ethernet card(both AUI/RS232) on it. But the problem is 
> that I can't find the connector for it.
> 
> It has three rows of pins (9+9+8) while the reqular
> AUI is 8+7. 
> 
> The system is running 10.20 and lan1 is congiured to
> be 192.168.2.1 and accpeted the ping back.
> 
> Anybody know where can I find the connector(adpator) ?
> 
> So close yet so far !!!
> 
> Thanks in advance
> 
> tj
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


From - Thu Nov 08 21:12:13 2018
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Subject: Re: [parisc-linux] Need second ethernet card connector on a 712 hpwks
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Hi, T. Martin

The card is an add-on ethernet/rs232 combo card. The HP part number
is
1. A-3422-40 printed on the card or
2. A4014A according to the system compatibilty hardwre list manual in pdf
format on puffing web site.

It's output connector is 9+9+8 pins femal connector which required
a special 1 split into 2 cable(Y) for rs232 and AUI/RJ45 ? connection.

I tried http://www.pccables.com with no success.

Any one know where can I buy it  in Canada ?

thanks

tj
----- Original Message -----
From: "T. Martin" <catfish@alltel.net>
To: "T.J.Yang" <tjyang@myrealbox.com>
Cc: <parisc-linux@thepuffingroup.com>
Sent: Monday, March 20, 2000 6:40 PM
Subject: Re: [parisc-linux] Need second ethernet card connector on a 712
hpwks


>
> Hi
>  I have a 715/50 running on my LAN (setiathome) I found an old AUI -> BNC
> (10Base2) and used it with the AUI it tranfers at over 1024kb/s with my
> SMC cards in my Linux box, I'll never buy a generic NE2k again.
>
>  AUI->BNC aren't real cheap you'll have to shop around to get a good
> price I've seen on egghead for $35
> Terry
>
>
> On Mon, 20 Mar 2000, T.J.Yang wrote:
>
> > Hi, there
> >
> > I am lucky enough to acquire a 712/100 machine with second
> > ethernet card(both AUI/RS232) on it. But the problem is
> > that I can't find the connector for it.
> >
> > It has three rows of pins (9+9+8) while the reqular
> > AUI is 8+7.
> >
> > The system is running 10.20 and lan1 is congiured to
> > be 192.168.2.1 and accpeted the ping back.
> >
> > Anybody know where can I find the connector(adpator) ?
> >
> > So close yet so far !!!
> >
> > Thanks in advance
> >
> > tj
> >
>
> --------------------------------------------------------------------------
-
> > To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com
with
> > `unsubscribe' as the subject.
> >
> >
>
> --------------------------------------------------------------------------

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hello!

anybody know where i can get my hands on an ethernet adapter
(twisted-pair or coax) for an hp9000/735/99?

thanks in advance!

pedro


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I'm pretty sure I've done this the other way round (taken a workstation
floppy drive and put it a pc). The floppy would have been from a 715/80 or
it could have been an old X-term, but that worked fine.

Hope this helps
Alex
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Mr Alex Abrahams
Technical Analyst
Systems Engineering Support Group
Air Products PLC

Tel:  +44 1932 249939
Fax: +44 1932 258274




-----Original Message-----
From: T.J.Yang [mailto:tjyang@myrealbox.com]
Sent: 20 March 2000 15:08
To: parisc-linux@thepuffingroup.com
Subject: [parisc-linux] floppy disk drive for hp 712/100


Another question for my 712/100 wks. 
I am thinking of putting a floppy disk drive into the
empty seond bay. The ioscan output strongly indicate
the floppy disk is a reqular PC floppy drive. 

on the hp mother board, the floppy disk connetion cable
looks alright with the pc one but the power cable is 
different. It only has two wires while the PC one has
four. (That is why it is imporatent to locate the 
712/100 owner's/technical manual).

I don't have the multimeter with me now to check on the 
voltage. 

Perhaps someone done this before can help me out.

Thanks again


tj

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From: Paul Bame <bame@endor.fc.hp.com>
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Subject: [parisc-linux] PALO and ramdisk micro-howto
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Grab recent versions of these from CVS:
	palo sources
	linux-2.3/init/main.c
	linux-2.3/arch/parisc/kernel/setup.c

In palo/Makefile, comment out NFSROOT= and uncomment the RAMDISK= line
which assumes your ramdisk is the file ../linux-2.3/ramdisk.bin which
is the way we used to have things.  Make sure you have a ramdisk in that
file (or change RAMDISK=).

Next time you 'make palo' in your linux tree, palo inserts the ramdisk
inside lifimage and constructs a default kernel command line to use the
ramdisk.

I tried both the old ramdisk, and I turned willy's nfsroot into a
ramdisk, and both booted and loaded but died with that
'Kernel panic: Attempted to kill init!' message.  Looks like sash is
being started with some args it doesn't like and exiting with a usage
message.

	-P


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Subject: [parisc-linux] parisc gcc compile on ALPHA
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I'm back to trying to get things to build on my ALPHA.
I've got binutils built and installed (even managed to 
trick the debian packaging scripts into making a package 
w/o ld :)

gcc currently fails thusly -- which is better than the
way it used to fail before I just updated from cvs.  Is
this arch specific or is the assembly stuff still a moving
target?

/usr/src/parisc/gcc/gcc/xgcc -B/usr/src/parisc/gcc/gcc/
-B/usr/src/parisc/hppa1.1-linux/bin/
-I/usr/src/parisc/hppa1.1-linux/include -DCROSS_COMPILE -DIN_GCC
-DMULTIBYTE_CHARS=1   -g -O2  -I./include  -c dummy.c
/tmp/cc0ujkeP.s: Assembler messages:
/tmp/cc0ujkeP.s:1: Error: Bad expression
/tmp/cc0ujkeP.s:1: Warning: Missing string
/tmp/cc0ujkeP.s:1: Error: Rest of line ignored. First ignored character is
`d'.
/tmp/cc0ujkeP.s:1: Error: Rest of line ignored. First ignored character is
`.'.
/tmp/cc0ujkeP.s:28: Error: Unknown pseudo-op:  `.export'
/tmp/cc0ujkeP.s:30: Error: unknown opcode `__foo'
/tmp/cc0ujkeP.s:31: Error: Rest of line ignored. First ignored character
is `-'.
/tmp/cc0ujkeP.s:33: Error: unknown opcode `__foo'
/tmp/cc0ujkeP.s:34: Warning: Expected comma after name ""
/tmp/cc0ujkeP.s:34: Warning: unhandled: .proc
 .CALLINFO FRAME=0,NO_CALLS
 .ENTRY
 bv,n %r0(%r2)
 .EXIT
 .PROCEND
.Lfe1:
 .size __foo,.Lfe1-__foo
.Lscope0:
 .stabs "",36,0,0,.Lscope0-__foo
 .text
 .stabs "",100,0,0,Letext
Letext:
 .ident "GCC: (GNU) 2.9-hppa-991112"
,0
/tmp/cc0ujkeP.s:34: Error: Rest of line ignored. First ignored character
is `.'.
/tmp/cc0ujkeP.s:35: Error: Unknown pseudo-op:  `.entry'
/tmp/cc0ujkeP.s:36: Error: syntax error
/tmp/cc0ujkeP.s:37: Error: Unknown pseudo-op:  `.exit'
/tmp/cc0ujkeP.s:38: Error: Unknown pseudo-op:  `.procend'
make[1]: *** [libgcc1.null] Error 1


--
Brian S. Julin


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On Tue, Mar 21, 2000 at 02:44:50PM -0500, Brian S. Julin wrote:
> 
> I'm back to trying to get things to build on my ALPHA.
> I've got binutils built and installed (even managed to 
> trick the debian packaging scripts into making a package 
> w/o ld :)

but... ld works fine in the latest binutils.  From your error message,
it looks like you aren't using ELF binutils.  When did you last update
your binutils package?


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= I tried both the old ramdisk, and I turned willy's nfsroot into a
                                             ^^^^^ mkp's
= ramdisk, and both booted and loaded but died with that
= 'Kernel panic: Attempted to kill init!' message.  Looks like sash is
= being started with some args it doesn't like and exiting with a usage
= message.

Fixed by new palo/ipl.c


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From: Bill Katz <billk@sr.hp.com>
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Subject: Re: [hppa-linux] Boot #4 and source on ftp site
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> 	
> 	I  compiled without libmilli.a and it did compile.
> 	File ipl_s.s says 
> 	The object code is converted to LIF (logical interchange format)
> 	and then at the beginning of the boot media.
> 
> 	So how do I convert the binary "ipl" to LIF. I tried "lifinit"
> 	and "mkboot" combination. But no luck, I keep getting 
> 	
> 	"Bad IPL size" and "Error reading IPL" error messages. 
> 
> 	I tried "dd" also on the raw disk. No luck with that either.
> 
> 	So my question is how to place built "ipl" binary at the
> 	appropriate place on the disk so that PDC finds it. Any magic
> 	combination of commands ? Looks like I am missing something
> 	obvious.
> 
> 
> Thanks in advance,
> 
> -pkd

You are on the right track.  After lifinit you have to use lifcp to copy
the file into the newly created LIF volume.  You also have to give it
the correct file type.  A script I use for creating bootable LIF
volumes looks something like:

#! /bin/ksh -x
LIF_FILE=uxbootlf
/bin/rm -f $LIF_FILE

lifinit `./iplopt ISL` -v8000000 -d32 -nL2DIAG -K2 -s4096 $LIF_FILE

lifcp -r -T-12800  -K2 ISL             $LIF_FILE:ISL
lifcp -r -T-12289  -K2 AUTO            $LIF_FILE:AUTO
lifcp -r -T-12928  -K2 HPUX            $LIF_FILE:HPUX

	-Bill


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Xref: news.gmane.org gmane.linux.ports.parisc:7078

Hi all,
I was trying to build the hppa2.0 toolchain after it was
suggested the recipe at http://www.thepuffingroup.com/parisc/recipe.html
worked (except s/hppa1.1/hppa2.0/).

I used "--prefix=/opt/puffin64" to configure and the binutils seemed
to make and install with no problem. PATH is:

    /opt/puffin64/bin:/opt/socks/bin:/opt/puffin/bin:/opt/gcc/bin: \
    /opt/binutils/bin:/home/grundler/bin:/bin:/usr/bin:/usr/contrib/bin: \
    /usr/local/bin:/usr/vue/bin:/usr/bin/X11:/usr/contrib/bin/X11: \
    /usr/local/bin/X11:/usr/local/bin/mh:/usr/local/games:/opt/wt/bin:/etc:.

I got as far as step 3. "Configure and build GCC:". The "make"
dies. Anyone trying this as well? Or know what's wrong?

thanks,
grant

grundler<509>make
[ stuff scrolled off ]

gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -W -Wall    -I. -I.. -I../../../gcc/gcc/cp -I../../../gcc/gcc/cp/.. -I../../../gcc/gcc/cp/../config -I../../../gcc/gcc/cp/../../include ../../../gcc/gcc/cp/tree.c
In file included from ../tm.h:12,
                 from ../../../gcc/gcc/cp/../config/pa/xm-pahpux.h:47,
                 from ../config.h:8,
                 from ../../../gcc/gcc/cp/tree.c:22:
../../../gcc/gcc/cp/../config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../../gcc/gcc/cp/../config/pa/linux.h:66: warning: this is the location of the previous definition
../../../gcc/gcc/cp/../config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../../gcc/gcc/cp/../config/svr4.h:424: warning: this is the location of the previous definition
../../../gcc/gcc/cp/../config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../../gcc/gcc/cp/../config/svr4.h:621: warning: this is the location of the previous definition
../../../gcc/gcc/cp/../config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../../gcc/gcc/cp/../config/svr4.h:631: warning: this is the location of the previous definition
../../../gcc/gcc/cp/tree.c: In function `init_cplus_unsave':
../../../gcc/gcc/cp/tree.c:2854: warning: assignment from incompatible pointer type
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -W -Wall    -I. -I.. -I../../../gcc/gcc/cp -I../../../gcc/gcc/cp/.. -I../../../gcc/gcc/cp/../config -I../../../gcc/gcc/cp/../../include ../../../gcc/gcc/cp/xref.c
In file included from ../tm.h:12,
                 from ../../../gcc/gcc/cp/../config/pa/xm-pahpux.h:47,
                 from ../config.h:8,
                 from ../../../gcc/gcc/cp/xref.c:23:
../../../gcc/gcc/cp/../config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../../gcc/gcc/cp/../config/pa/linux.h:66: warning: this is the location of the previous definition
../../../gcc/gcc/cp/../config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../../gcc/gcc/cp/../config/svr4.h:424: warning: this is the location of the previous definition
../../../gcc/gcc/cp/../config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../../gcc/gcc/cp/../config/svr4.h:621: warning: this is the location of the previous definition
../../../gcc/gcc/cp/../config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../../gcc/gcc/cp/../config/svr4.h:631: warning: this is the location of the previous definition
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -W -Wall    -I. -I.. -I../../../gcc/gcc/cp -I../../../gcc/gcc/cp/.. -I../../../gcc/gcc/cp/../config -I../../../gcc/gcc/cp/../../include ../../../gcc/gcc/cp/repo.c
In file included from ../tm.h:12,
                 from ../../../gcc/gcc/cp/../config/pa/xm-pahpux.h:47,
                 from ../config.h:8,
                 from ../../../gcc/gcc/cp/repo.c:28:
../../../gcc/gcc/cp/../config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../../gcc/gcc/cp/../config/pa/linux.h:66: warning: this is the location of the previous definition
../../../gcc/gcc/cp/../config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../../gcc/gcc/cp/../config/svr4.h:424: warning: this is the location of the previous definition
../../../gcc/gcc/cp/../config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../../gcc/gcc/cp/../config/svr4.h:621: warning: this is the location of the previous definition
../../../gcc/gcc/cp/../config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../../gcc/gcc/cp/../config/svr4.h:631: warning: this is the location of the previous definition
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -W -Wall    -I. -I.. -I../../../gcc/gcc/cp -I../../../gcc/gcc/cp/.. -I../../../gcc/gcc/cp/../config -I../../../gcc/gcc/cp/../../include ../../../gcc/gcc/cp/dump.c
In file included from ../tm.h:12,
                 from ../../../gcc/gcc/cp/../config/pa/xm-pahpux.h:47,
                 from ../config.h:8,
                 from ../../../gcc/gcc/cp/dump.c:25:
../../../gcc/gcc/cp/../config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../../gcc/gcc/cp/../config/pa/linux.h:66: warning: this is the location of the previous definition
../../../gcc/gcc/cp/../config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../../gcc/gcc/cp/../config/svr4.h:424: warning: this is the location of the previous definition
../../../gcc/gcc/cp/../config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../../gcc/gcc/cp/../config/svr4.h:621: warning: this is the location of the previous definition
../../../gcc/gcc/cp/../config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../../gcc/gcc/cp/../config/svr4.h:631: warning: this is the location of the previous definition
gcc -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -W -Wall  -o ../cc1plus `cat ../stamp-objlist` ../c-common.o ../c-pragma.o call.o decl.o errfn.o expr.o pt.o typeck2.o class.o decl2.o error.o lex.o parse.o ptree.o rtti.o spew.o typeck.o cvt.o except.o friend.o init.o method.o search.o semantics.o tree.o xref.o repo.o dump.o  `if [ xobstack.o != x ]; then echo ../obstack.o; else true; fi` `if [ xalloca.o != x ]; then echo ../alloca.o; else true; fi` `if [ x != x ]; then echo ../; else true; fi`   ../../libiberty/libiberty.a
make[2]: Leaving directory `/linux/grundler/gcc-build/gcc/cp'
gcc -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include  \
-DTARGET_MACHINE=\"hppa2.0-linux\"  \
-c `echo ../../gcc/gcc/collect2.c | sed 's,^\./,,'`
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from config.h:8,
                 from ../../gcc/gcc/collect2.c:28:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/tlink.c
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from config.h:8,
                 from ../../gcc/gcc/tlink.c:24:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
echo "int xxy_us_dummy;" >tmp-dum.c
/linux/grundler/gcc-build/gcc/xgcc -B/linux/grundler/gcc-build/gcc/ -B/opt/puffin64/hppa2.0-linux/bin/ -I/opt/puffin64/hppa2.0-linux/include -S tmp-dum.c
echo '/*WARNING: This file is automatically generated!*/' >tmp-under.c
if grep _xxy_us_dummy tmp-dum.s > /dev/null ; then \
  echo "int prepends_underscore = 1;" >>tmp-under.c; \
else \
  echo "int prepends_underscore = 0;" >>tmp-under.c; \
fi
../../gcc/gcc/move-if-change tmp-under.c underscore.c
rm -f tmp-dum.c tmp-dum.s
touch s-under
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include underscore.c
rm -f collect2
gcc -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H  -o collect2 collect2.o tlink.o hash.o intl.o underscore.o version.o  obstack.o alloca.o       ../libiberty/libiberty.a
cp xgcc gcc-cross
/linux/grundler/gcc-build/gcc/xgcc -B/linux/grundler/gcc-build/gcc/ -B/opt/puffin64/hppa2.0-linux/bin/ -I/opt/puffin64/hppa2.0-linux/include -dumpspecs > tmp-specs
mv tmp-specs specs
touch stmp-headers
if [ -d /opt/puffin64/hppa2.0-linux/sys-include ]; \
then \
  CC="/linux/grundler/gcc-build/gcc/xgcc -B/linux/grundler/gcc-build/gcc/ -B/opt/puffin64/hppa2.0-linux/bin/ -I/opt/puffin64/hppa2.0-linux/include -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2  -I./include     -I. -I../../gcc/gcc -Iinclude -I/opt/puffin64/hppa2.0-linux/sys-include"; \
  export CC; \
  /bin/sh ../../gcc/gcc/scan-types.sh "../../gcc/gcc" >tmp-deduced.h; \
  mv tmp-deduced.h deduced.h; \
else \
  touch deduced.h; \
fi
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/gen-protos.c
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from hconfig.h:8,
                 from ../../gcc/gcc/gen-protos.c:18:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/scan.c
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from hconfig.h:8,
                 from ../../gcc/gcc/scan.c:18:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/cpplib.c
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from config.h:8,
                 from ../../gcc/gcc/cpplib.c:21:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/cpphash.c
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from config.h:8,
                 from ../../gcc/gcc/cpphash.c:25:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/cppalloc.c
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from config.h:8,
                 from ../../gcc/gcc/cppalloc.c:25:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/cpperror.c
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from config.h:8,
                 from ../../gcc/gcc/cpperror.c:26:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/cppexp.c
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from config.h:8,
                 from ../../gcc/gcc/cppexp.c:27:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/cppfiles.c
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from config.h:8,
                 from ../../gcc/gcc/cppfiles.c:26:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
gcc -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include \
  -DGCC_INCLUDE_DIR=\"/opt/puffin64/lib/gcc-lib/hppa2.0-linux/2.9-hppa-991112/include\" -DGPLUSPLUS_INCLUDE_DIR=\"/opt/puffin64/lib/gcc-lib/hppa2.0-linux/2.9-hppa-991112/../../../..`echo /opt/puffin64 | sed -e 's|^/opt/puffin64||' -e 's|/[^/]*|/..|g'`/include/g++-\" -DLOCAL_INCLUDE_DIR=\"/opt/puffin64/include\" -DCROSS_INCLUDE_DIR=\"/opt/puffin64/lib/gcc-lib/hppa2.0-linux/2.9-hppa-991112/../../../../hppa2.0-linux/sys-include\" -DTOOL_INCLUDE_DIR=\"/opt/puffin64/lib/gcc-lib/hppa2.0-linux/2.9-hppa-991112/../../../../hppa2.0-linux/include\" \
  -c `echo ../../gcc/gcc/cppinit.c | sed 's,^\./,,'`
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from config.h:8,
                 from ../../gcc/gcc/cppinit.c:21:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/cppulp.c
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from config.h:8,
                 from ../../gcc/gcc/cppulp.c:21:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
ar rc libcpp.a cpplib.o cpphash.o cppalloc.o cpperror.o cppexp.o cppfiles.o cppinit.o cppulp.o prefix.o version.o mbchar.o 
if [ -f true ] || [ -f /usr/bin/ranlib -o -f /bin/ranlib ] ; then true libcpp.a ; else true ; fi
gcc -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H  -o gen-protos \
  gen-protos.o scan.o libcpp.a ` case "obstack.o" in ?*) echo obstack.o ;; esac ` ` case "alloca.o" in ?*) echo alloca.o ;; esac ` ` case "" in ?*) echo  ;; esac `  ` case "" in ?*) echo  ;; esac ` ` case "" in ?*) echo  ;; esac ` 
cat deduced.h ../../gcc/gcc/sys-protos.h > tmp-fixtmp.c
mv tmp-fixtmp.c fixtmp.c
/linux/grundler/gcc-build/gcc/xgcc -B/linux/grundler/gcc-build/gcc/ -B/opt/puffin64/hppa2.0-linux/bin/ -I/opt/puffin64/hppa2.0-linux/include fixtmp.c -w -U__SIZE_TYPE__ -U__PTRDIFF_TYPE__ -U__WCHAR_TYPE__ -E \
  | sed -e 's/  / /g' -e 's/ *(/ (/g' -e 's/ [ ]*/ /g' -e 's/( )/()/' \
  | ./gen-protos >xsys-protos.hT
mv xsys-protos.hT xsys-protos.h
rm -rf fixtmp.c
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/fix-header.c
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from hconfig.h:8,
                 from ../../gcc/gcc/fix-header.c:73:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
gcc -c -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H    -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/scan-decls.c
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-pahpux.h:47,
                 from hconfig.h:8,
                 from ../../gcc/gcc/scan-decls.c:20:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
gcc -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2   -DHAVE_CONFIG_H  -o fix-header fix-header.o \
   scan-decls.o scan.o libcpp.a ` case "obstack.o" in ?*) echo obstack.o ;; esac ` ` case "alloca.o" in ?*) echo alloca.o ;; esac ` ` case "" in ?*) echo  ;; esac `  ` case "" in ?*) echo  ;; esac ` ` case "" in ?*) echo  ;; esac ` 
rm -f fixproto-defines; \
    echo "#!/bin/sh" > fixproto-defines ; \
    echo "# Print FIXPROTO_DEFINES needed by fixproto." >> fixproto-defines ; \
    echo "echo '-D_HPUX_SOURCE'" >> fixproto-defines ; \
    chmod +x fixproto-defines
if [ -f fixhdr.ready ] ; then \
        true; \
else \
        touch fixhdr.ready; \
fi
Various warnings and error messages from fixproto are normal
if [ -d include ] ; then true; else mkdir include; fi
if [ -f include/fixed ] ; then true; \
else \
  : This line works around a 'make' bug in BSDI 1.1.; \
  FIXPROTO_DEFINES="-D_HPUX_SOURCE"; export FIXPROTO_DEFINES; \
  mkinstalldirs="/bin/sh ../../gcc/gcc/mkinstalldirs"; \
    export mkinstalldirs; \
  if [ -d /opt/puffin64/hppa2.0-linux/sys-include ] ; then \
    /bin/sh ../../gcc/gcc/fixproto include include /opt/puffin64/hppa2.0-linux/sys-include; \
  else true; fi; \
  touch include/fixed; \
fi
touch stmp-fixproto
echo "void __foo () {}" > dummy.c
/linux/grundler/gcc-build/gcc/xgcc -B/linux/grundler/gcc-build/gcc/ -B/opt/puffin64/hppa2.0-linux/bin/ -I/opt/puffin64/hppa2.0-linux/include -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2  -I./include  -c dummy.c
hppa2.0-linux-ar rc libgcc1.null dummy.o
rm -f dummy.o dummy.c
if [ -f libgcc2.ready ] ; then \
        true; \
else \
        touch libgcc2.ready; \
fi
rm -f lib2funcs.asm
cp ../../gcc/gcc/config/pa/lib2funcs.asm .
case " c proto gcov c++ " in \
*" "[cC]"++ "*) \
  echo tinfo.o tinfo2.o new.o opnew.o opnewnt.o opvnew.o opvnewnt.o opdel.o opdelnt.o opvdel.o opvdelnt.o exception.o > cplib2.new;; \
*) \
  echo "" > cplib2.new;; \
esac
mv -f cplib2.new cplib2.txt 
rm -f tmplibgcc2.a
for name in _muldi3 _divdi3 _moddi3 _udivdi3 _umoddi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 _ffsdi2 _udiv_w_sdiv _udivmoddi4 _cmpdi2 _ucmpdi2 _floatdidf _floatdisf _fixunsdfsi _fixunssfsi _fixunsdfdi _fixdfdi _fixunssfdi _fixsfdi _fixxfdi _fixunsxfdi _floatdixf _fixunsxfsi _fixtfdi _fixunstfdi _floatditf __gcc_bcmp _varargs __dummy _eprintf _bb _shtab _clear_cache _trampoline __main _exit _ctors _pure; \
do \
  echo ${name}; \
  /linux/grundler/gcc-build/gcc/xgcc -B/linux/grundler/gcc-build/gcc/ -B/opt/puffin64/hppa2.0-linux/bin/ -I/opt/puffin64/hppa2.0-linux/include -O2  -DCROSS_COMPILE -DIN_GCC  -DMULTIBYTE_CHARS=1   -O2  -I./include  -fPIC -g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED   -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include -c -DL${name} \
       ../../gcc/gcc/libgcc2.c -o ${name}.o; \
  if [ $? -eq 0 ] ; then true; else exit 1; fi; \
  hppa2.0-linux-ar rc tmplibgcc2.a ${name}.o; \
  rm -f ${name}.o; \
done
_muldi3
In file included from tm.h:12,
                 from ../../gcc/gcc/config/pa/xm-linux64.h:41,
                 from tconfig.h:5,
                 from ../../gcc/gcc/libgcc2.c:33:
../../gcc/gcc/config/pa/pa-64.h:173: warning: `USE_CONST_SECTION' redefined
../../gcc/gcc/config/pa/linux.h:66: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:349: warning: `INT_ASM_OP' redefined
../../gcc/gcc/config/svr4.h:424: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:358: warning: `ASM_OUTPUT_CONSTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:621: warning: this is the location of the previous definition
../../gcc/gcc/config/pa/pa-64.h:368: warning: `ASM_OUTPUT_DESTRUCTOR' redefined
../../gcc/gcc/config/svr4.h:631: warning: this is the location of the previous definition
../../gcc/gcc/libgcc2.c:41: stdlib.h: No such file or directory
../../gcc/gcc/libgcc2.c:42: unistd.h: No such file or directory
make[1]: *** [libgcc2.a] Error 1
make[1]: Leaving directory `/linux/grundler/gcc-build/gcc'
make: *** [all-gcc] Error 2
grundler <510>pwd
/linux/grundler/gcc-build


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Subject: Re: [parisc-linux] building hppa2.0 toolchain
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Xref: news.gmane.org gmane.linux.ports.parisc:7079


um, looks like the recipe was wrong.  My mistake.  I'm updating the
recipe now.



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Subject: [parisc-linux] Any docs on the 715?
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Are there any documents on the ASICs found in the 715 available? 
The stuff on the web page only seem the cover newer boxes.

/Daniel
-- 
Daniel Engstrm - Lilla Fabriken AB - Technical Support
daniel@lillfab.se - Work related.  5116@telia.com - Private.


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Subject: Re: [parisc-linux] PALO and ramdisk micro-howto
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On 21 Mar, Paul Bame wrote:
> In palo/Makefile, comment out NFSROOT= and uncomment the RAMDISK= line
> which assumes your ramdisk is the file ../linux-2.3/ramdisk.bin which
> is the way we used to have things.  Make sure you have a ramdisk in that
> file (or change RAMDISK=).
> 
I tried this with my 715/50 and current CVS kernel and palo as of today.

I got the following results:

[...]

RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
SCSI clock: 50000000
Lasi Scsi (53c700) found at 0xf0825100
scsi-ncr53c7xx : unsupported SCSI chip 700
scsi : 0 hosts.
scsi : detected total.
IP-Config: No network devices available.
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 600 blocks [1 disk] into ram disk... done. 
kernel BUG at block_dev.c:411! 
kernel BUG at block_dev.c:411!


Any ideas?

/Daniel

-- 
Daniel Engstrm - Lilla Fabriken AB - Technical Support
daniel@lillfab.se - Work related.  5116@telia.com - Private.


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5116@telia.com wrote:
> Are there any documents on the ASICs found in the 715 available? 
> The stuff on the web page only seem the cover newer boxes.
> 
> /Daniel

Daniel,
Could you be more specific about what's missing?

See http://216.208.98.4/view.php3?type=machine&name=715%2F100

The PCX-L (PA7100LC) and LASI chip are documented.

WAX (EISA) support is not. Check if mklinux or openbsd have something
for this already and , erm, "borrow" it.

If Steve Shack gets the STI graphics support working for his 712,
it might also work on your 715. He's borrowing from one of the
other open source ports too.

WAX (EISA) support is not. Check if mklinux or openbsd have something
for this already and , erm, "borrow" it.
I don't see much else that isn't documented.

grant

Grant Grundler
Unix Development Lab
+1.408.447.72


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Xref: news.gmane.org gmane.linux.ports.parisc:7083

> Are there any documents on the ASICs found in the 715 available? 
> The stuff on the web page only seem the cover newer boxes.

There are two kinds of 715;  if you're lucky, you've got a "new" 715,
which has (really, check the hardware database for details) Lasi and
a PA7100LC, both documented, and undocumented graphics (all graphics
is).  There is very little difference between such 715s and 712s.

If you're unlucky (like me), you've got an "old" 715, which has ASP
(a Lasi predecessor) and what I believe is a PA7100.

Here's the list of things that work on the two boxes (* for things I
haven't actually checked, but believe should work):

715 old:
	network (10 mbit/s ethernet with a 10 base t transceiver)
	1 bpp unaccelerated framebuffer
	keyboard (HIL) *
	sound *
	serial *

715 new:
	network *
	1bpp unaccelerated framebuffer *
	keyboard (either PS/2 or HIL, both should work) *
	sound *
	serial *

I don't know about the 715 scsi chip, the eisa slot, parallel;
I don't think anyone has worked out how to use the LEDs yet.

	Philipp Rumpf


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On Wed, Mar 22, 2000 at 05:09:13PM -0700, Philipp Rumpf wrote:
> I don't know about the 715 scsi chip, the eisa slot, parallel;

the 715/old scsi chip is an ncr53c700.  everyone is too scared of it
right now.  the 715/new scsi chip is an ncr53c710 and Gyula Matics
committed code that should have that working.

> I don't think anyone has worked out how to use the LEDs yet.

If you look in the mach sources, flashing the LEDs is pretty
straightforward.


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On Wed, Mar 22, 2000 at 11:33:21PM +0100, 5116@telia.com wrote:
> I tried this with my 715/50 and current CVS kernel and palo as of today.

> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> SCSI clock: 50000000
> Lasi Scsi (53c700) found at 0xf0825100
> scsi-ncr53c7xx : unsupported SCSI chip 700

hehehe... someone's going to have to fix that someday...

> scsi : 0 hosts.
> scsi : detected total.
> IP-Config: No network devices available.
> RAMDISK: ext2 filesystem found at block 0
> RAMDISK: Loading 600 blocks [1 disk] into ram disk... done. 
> kernel BUG at block_dev.c:411! 
> kernel BUG at block_dev.c:411!

those two are OK, they should disappear when we go to the latest Linus
tree.  What's happening at this point is that it's switching to serial
console.  You should be able to stay with PDC console for the time being,
though you can't use it as an input device, only output.  In the fullness
of time, we'll have a proper graphics console.  Stay tuned :-)


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On 22 Mar, Philipp Rumpf wrote:
>> Are there any documents on the ASICs found in the 715 available? 
>> The stuff on the web page only seem the cover newer boxes.
> 
> There are two kinds of 715;  if you're lucky, you've got a "new" 715,
> which has (really, check the hardware database for details) Lasi and
> a PA7100LC, both documented, and undocumented graphics (all graphics
> is).  There is very little difference between such 715s and 712s.
I definitely have the older version. If I open the box I can find the I
ntel, NCR and WD chips and those would have been integrated in to the
LASI if had one.

/Daniel 

-- 
Daniel Engstrm - Lilla Fabriken AB - Technical Support
daniel@lillfab.se - Work related.  5116@telia.com - Private.


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From: "Thierry SIMONNET" <t.simonnet@esiee.fr>
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I have generated new lifimages with differents methods (ramdisk, nfsroot and
disk) using palo.
I have the following messages :
    eth0: receive unit error
    eth0: Null rbd - oops!
     eth0: receive unit error
    eth0: Null rbd - oops!
    eth0: receive unit error
    eth0: Null rbd - oops!
    eth0: receive unit error
    eth0: Null rbd - oops!
....

Before this messages, everything is OK. sash works fine, and I can execute
some test programs. After that, I lost LAN connectivity.

My config is  : 712/80 Workstation, with latest binutils, gcc, linux-2.3 and
palo.

Have an idea?

THX

Th. SIMONNET


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From: Jason Eckhardt <jason@equator.com>
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> > 	So my question is how to place built "ipl" binary at the
> > 	appropriate place on the disk so that PDC finds it. Any magic
> > 	combination of commands ? Looks like I am missing something
> > 	obvious.
> > 
> > 
> > Thanks in advance,
> > 
> > -pkd
>
> You are on the right track.  After lifinit you have to use lifcp to copy
> the file into the newly created LIF volume.  You also have to give it
> the correct file type.  A script I use for creating bootable LIF
> volumes looks something like:
>

  That is one way. The way I do it for our very simple LIF volume is as folows:
  Once you have obtained the SOM ipl binary (after make), then:
   % strip ipl
   % mkipl ipl
   % mklifhdr hdr x y z a b c (see the utility for what these #'s mean)
   % cat hdr pad_file ipl vmlinux > bootstrap.bin

  pad_file is a 1024 byte file full of 0.

  I did forget to put this information into the README, sorry.
  Eventually (next few days, hopefully), there will be one utility "mkimg"
  that will automatically do everything above for you (particularly, picking
  the numbers which have to do with entry points, etc).
 
  Of course, vmlinux doesn't yet exist. I just have a simple dummy kernel
  I use there, which hasn't been included in the distribution. If you
  want to play around without the dummy kernel, just comment out the line
  in ipl_c.c that branches to the kernel and remove "vmlinux" from the
  concat line step above. You can then see the bootstrap run, but it won't
  try to execute the kernel.

  Have fun, Jason.



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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
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Subject: [parisc-linux] Success story on 715/33 and a question
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Hi all,

after Paul's latest changes to palo I was now also
able to boot a cross compiled ELF kernel + ramdisk on
my 715/33. Even my HIL keyboard is working again.
Super!

So now I am trying to do something useful :) with that
booted kernel. I would like to mount the proc
filesystem. I am using a very old ramdisk image
(19991108) because I had trouble with the newer images
on the 715/33 (no network driver).

-mount -t proc proc /proc
returns
mount failed: Function is not available

Is there a ramdisk image which I can use on a system
without a network driver ? Or do I need to compile
sash on HPUX as a SOM executable and build a ramdisk
image by myself ? Do I have to make any changes to
ftp://puffin.external.hp.com/pub/parisc/src/sash-2.1-hpux.tar.gz
?

Ulrich

__________________________________________________
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Xref: news.gmane.org gmane.linux.ports.parisc:7090

On Fri, Mar 24, 2000 at 04:15:39AM -0800, Ulrich Strelow wrote:
> So now I am trying to do something useful :) with that
> booted kernel. I would like to mount the proc
> filesystem. I am using a very old ramdisk image
> (19991108) because I had trouble with the newer images
> on the 715/33 (no network driver).

I've got a patch to get the 715/old i82596 going right here,
and i'm going to commit it once I am in FC;  my 715/33 starts
sash fine, Hil keyboard works well (including SysRq), nfsroot
works, the framebuffer works at 1bpp (1024x768), and the HIL
mouse generates recognizable data.  This is about what you
should expect when I got around to committing everything.

> Is there a ramdisk image which I can use on a system
> without a network driver ? Or do I need to compile
> sash on HPUX as a SOM executable and build a ramdisk
> image by myself ? Do I have to make any changes to
> ftp://puffin.external.hp.com/pub/parisc/src/sash-2.1-hpux.tar.gz
> ?

Try to move to nfsroot asap - it's easier.  glibc compiles a
(working libc.a) (again, this is only local changes - I'm sure
people will force me to commit everything in FC though), and
ELF binaries linked against it work, so we'll hopefully have an
ELF sash soon.

	Philipp Rumpf


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T.J.Yang wrote:
> 
> Another question for my 712/100 wks.
> I am thinking of putting a floppy disk drive into the
> empty seond bay. The ioscan output strongly indicate
> the floppy disk is a reqular PC floppy drive.
> 
> on the hp mother board, the floppy disk connetion cable
> looks alright with the pc one but the power cable is
> different. It only has two wires while the PC one has
> four. (That is why it is imporatent to locate the
> 712/100 owner's/technical manual).
> 
> I don't have the multimeter with me now to check on the
> voltage.
> 
> Perhaps someone done this before can help me out.
> 
> Thanks again
> 
> tj
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

Pc floppy-drive use only +5V, so it's enough two wires.
+12V is unused, but present for other peripherals.

-- 
Postai Paolo. Modena, Italy
<paolopos@lica.unimo.it>
Key fingerprint = E8 5A 33 C8 45 1B 76 6C  D2 95 51 E1 AD 27 D0 90
Pgp Key = <http://www.lica.unimo.it/~paolopos/public_key_PGP.asc>


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Success story on 715/33 and a question
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--- Ulrich Strelow <ulrich_strelow@yahoo.com> wrote:
> 
> Is there a ramdisk image which I can use on a system
> without a network driver ? ...

OK, this was a really stupid question, I must admit. I
simply forget that it now only takes some minutes (in
this case seconds) to build a new lifimage and test
it.

So here are the results of testing the various ramdisk
images at
ftp://puffin.external.hp.com/pub/parisc/binaries/ramdisks/
on my 715/33:

Version       sash prompt      mount -t proc proc
/proc
-------------------------------------------------------
19991108      yes              does not work
20000118      yes              works with error
message
20000118a     no               -
20000129      no               -
20000217      yes              works

Version 20000118a hangs after the message "No such
device" because of a missing network driver, Version
20000129 ends with a kernel protection fault.

Maybe these results are of some interest to people
with older machines.

Thanks to Philipp for his quick reply about the
forthcoming improvements for 715/old (that's a good
model name !).

Ulrich  

__________________________________________________
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= 
= So now I am trying to do something useful :) with that
= booted kernel. I would like to mount the proc
= filesystem. I am using a very old ramdisk image
= (19991108) because I had trouble with the newer images
= on the 715/33 (no network driver).

You might want to remove bootp, nfs root, and the network
drivers from your .config.

	-Paul Bame


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From: Mike Brancato <funnyguy@digitalsmackdown.net>
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I'm new to puffin.  I tried following the instruction on the webpage for
compiling gcc, but I can't get any version to compile.  With any version,
they all gave me different errors.  I tried building the cross-compiler on
my x86 machine too, and got the same errors.

mike


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Subject: [parisc-linux] Couple of questions
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This is a multi-part message in MIME format.

------=_NextPart_000_0009_01BF972D.F42E9800
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Hi,

a few questions:

1 - how does a 715/50 boot over a network? Probably not bootp...
2 - what is the maximum size of memory(module) (8 slots) supported in =
the 715/50? And what does Linux support?
3 - What does the TOC button do????
4 - Linux reports SCSI-Clock of 50MHz, this is probably wrong, right?
5 - I am willing to write a fb-driver, but can't find any specs of the =
graphics adapter..
6 - Is someone (thinking of) porting ld.so??
7 - Is it possible to use an ext2fs partition as root?

phew that's it.

Bas Valkema

------=_NextPart_000_0009_01BF972D.F42E9800
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2314.1000" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>a few questions:</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>1 - how does a 715/50 boot over a =
network? Probably=20
not bootp...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>2 - what is the maximum size of =
memory(module) (8=20
slots) supported in the 715/50? And what does Linux =
support?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>3 - What does the TOC button =
do????</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>4 - Linux reports SCSI-Clock&nbsp;of =
50MHz, this is=20
probably wrong, right?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>5 - I am willing to write a fb-driver, =
but can't=20
find any specs of the graphics adapter..</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>6 - Is someone (thinking of) porting=20
ld.so??</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>7 - Is it&nbsp;possible to use an =
ext2fs partition=20
as root?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>phew that's it.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Bas Valkema</FONT></DIV></BODY></HTML>

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From: Philipp Rumpf <prumpf@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Couple of questions
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> 1 - how does a 715/50 boot over a network? Probably not bootp...

rboot.  there's an RPM for it on puffin.external.hp.com.

> 3 - What does the TOC button do????

Reset, usually.


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Xref: news.gmane.org gmane.linux.ports.parisc:7097

On Sun, Mar 26, 2000 at 02:17:01PM +0200, Bas Valkema wrote:
> 1 - how does a 715/50 boot over a network? Probably not bootp...

rbootd.  There's an RPM and a tgz on puffin.external.hp.com in
/pub/parisc/binaries/

> 2 - what is the maximum size of memory(module) (8 slots) supported in the 715/50? And what does Linux support?

not sure.  You need to add them in pairs.  It's documented in the Hardware
Compatibility List that's available from the documentation page.

> 3 - What does the TOC button do????

Transfer Of Control.  It resets the machine.

> 4 - Linux reports SCSI-Clock of 50MHz, this is probably wrong, right?

According to the documentation we have, that is correct.

> 5 - I am willing to write a fb-driver, but can't find any specs of the graphics adapter..

we're working on getting those specs released.  steve shack is already
working on it though.

> 6 - Is someone (thinking of) porting ld.so??

yes, it's part of glibc.

> 7 - Is it possible to use an ext2fs partition as root?

The SCSI driver isn't working yet.  If you want to add support for the
NCR53c700 which is in the 715/50, then you will be very popular :-)


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Subject: Re: [parisc-linux] Success story on 715/33 and a question
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To: Philipp Rumpf <prumpf@puffin.external.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:7098

On Fri, Mar 24, 2000 at 06:31:05AM -0700, Philipp Rumpf wrote:
> Try to move to nfsroot asap - it's easier.  glibc compiles a
> (working libc.a) (again, this is only local changes - I'm sure
> people will force me to commit everything in FC though), and
> ELF binaries linked against it work, so we'll hopefully have an
> ELF sash soon.

we currently have a large arsenal of nerf weaponry pointed at prumpf
and he's committing as we speak.


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From: Kumar <kumar@ix.netcom.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] Boot #4 and source on ftp site
Date: Sat, 13 Mar 1999 20:43:46 -0800 (PST)
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OK, in the spirit of Linux tradition, I was able to hack it
to finally work. After doing couple of hex dumps of given
bootstrap.bin :-) and realizing what was I doing wrong.

Also I  forgot to see the boot_utils directory. 

So it also works on a B class 180. All that we need now is a Vmlinux.

Your answer explains why I am not seeing the moving cursor.
I Did not add a dummy kernel to image.
 
Any reasons you included libmilli.a in Makefile ? Since I was
getting bad archive messages I took it out of Makefile. Does not seem
to affect anything.

Keep up the good work. 

Cheers,
						pkd		
		

On Sat, 13 Mar 1999, Jason Eckhardt wrote:

> 
> > > 	So my question is how to place built "ipl" binary at the
> > > 	appropriate place on the disk so that PDC finds it. Any magic
> > > 	combination of commands ? Looks like I am missing something
> > > 	obvious.
> > > 
> > > 
> > > Thanks in advance,
> > > 
> > > -pkd
> >
> > You are on the right track.  After lifinit you have to use lifcp to copy
> > the file into the newly created LIF volume.  You also have to give it
> > the correct file type.  A script I use for creating bootable LIF
> > volumes looks something like:
> >
> 
>   That is one way. The way I do it for our very simple LIF volume is as folows:
>   Once you have obtained the SOM ipl binary (after make), then:
>    % strip ipl
>    % mkipl ipl
>    % mklifhdr hdr x y z a b c (see the utility for what these #'s mean)
>    % cat hdr pad_file ipl vmlinux > bootstrap.bin
> 
>   pad_file is a 1024 byte file full of 0.
> 
>   I did forget to put this information into the README, sorry.
>   Eventually (next few days, hopefully), there will be one utility "mkimg"
>   that will automatically do everything above for you (particularly, picking
>   the numbers which have to do with entry points, etc).
>  
>   Of course, vmlinux doesn't yet exist. I just have a simple dummy kernel
>   I use there, which hasn't been included in the distribution. If you
>   want to play around without the dummy kernel, just comment out the line
>   in ipl_c.c that branches to the kernel and remove "vmlinux" from the
>   concat line step above. You can then see the bootstrap run, but it won't
>   try to execute the kernel.
> 
>   Have fun, Jason.
> 
> 
> -------------------------------------------------------------------------
> To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 
> 


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From: willy@thepuffingroup.com
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Subject: Re: [parisc-linux] gcc 2.9
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To: Mike Brancato <funnyguy@digitalsmackdown.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:7100

On Sat, Mar 25, 2000 at 10:10:52PM -0500, Mike Brancato wrote:
> I'm new to puffin.  I tried following the instruction on the webpage for
> compiling gcc, but I can't get any version to compile.  With any version,
> they all gave me different errors.  I tried building the cross-compiler on
> my x86 machine too, and got the same errors.

I just updated the recipe (actually I updated it last week and forgot
to upload the updated version to the website; sorry) to note that you
are expected to get an error and you should ignore it.  Please try the
new recipe and as always let me know of any problems with it.


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From: Mike Brancato <funnyguy@digitalsmackdown.net>
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Subject: Re: [parisc-linux] gcc 2.9
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thank you.
I am trying to put Puffin on a 735/125 we have lying around.  Does anyone
have a more step-by-step method of ho to put it on the machine?  I will
get HPUX 10.20 or 11.0 (i think only 10.20 supports the 735?) on
themachine thursday, where do i go from there?  is there a certain set of
things i have to cross compile?  i know a few things.  but could someone
help me out?  we're gonna try to get a working machine again.... and have
it run linux.
plus. does X compile well on pa-risc linux?  can you use the X that comes
with HPUX in linux? i guess its not necessary to work, people will only be
able to connect to it thru envizex x stations. 

mike

On Sun, 26 Mar 2000 willy@thepuffingroup.com wrote:

> On Sat, Mar 25, 2000 at 10:10:52PM -0500, Mike Brancato wrote:
> > I'm new to puffin.  I tried following the instruction on the webpage for
> > compiling gcc, but I can't get any version to compile.  With any version,
> > they all gave me different errors.  I tried building the cross-compiler on
> > my x86 machine too, and got the same errors.
> 
> I just updated the recipe (actually I updated it last week and forgot
> to upload the updated version to the website; sorry) to note that you
> are expected to get an error and you should ignore it.  Please try the
> new recipe and as always let me know of any problems with it.
> 


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From: "M. Grabert" <xam@ngi.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] some questions
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Hi there,
some questions for you ...

- what will be the minimum memory requirements for
linux/HPPA on a 735/99 ? (with and w/o X)

- IMHO there is no usable free X server for linux/HPPA,
(for my 735) but i think a have working binary of XFree for 
hpux10.10 laying around here. If this is true, and the source
code is available, is this going to be difficult to port it to
linux/HPPA ? (perhaps i'll try it out, some time in future)

- AFAIK is the (first) main target the HP9000/7xx series.
I have also a HP9000/800/F10 (8MB) laying around here,
which i don't need anymore, so if you want it ...
.. there is just the problem of transport

- what filesystems are supported ?
is only nfs supported yet ?


greetings max


PS:
i'm a (poor ;) student of computer science in ratisbon,
germany, a i just have 16MB for my 735. Addidional 64MB would
cost about 350$ i think. Some sponsors *grin* ?
Or some ideas where i can get some memory real cheap ?

PPS: great work you're doing!


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On Sun, Mar 26, 2000 at 11:44:59PM +0200, M. Grabert wrote:
> Hi there,
> some questions for you ...
> 
> - what will be the minimum memory requirements for
> linux/HPPA on a 735/99 ? (with and w/o X)

difficult to say.  8MB without X and 16MB with X, at a guess.

> - IMHO there is no usable free X server for linux/HPPA,
> (for my 735) but i think a have working binary of XFree for 
> hpux10.10 laying around here. If this is true, and the source
> code is available, is this going to be difficult to port it to
> linux/HPPA ? (perhaps i'll try it out, some time in future)

cool, I didn't know XFree had been ported to hpux 10.10.  In fact,
I can't see any mention of it on the XFree site, so this intrigues me
quite a lot.

> - AFAIK is the (first) main target the HP9000/7xx series.
> I have also a HP9000/800/F10 (8MB) laying around here,
> which i don't need anymore, so if you want it ...
> .. there is just the problem of transport

There's quite a few people seem to want support for their Nova servers.
They're not _as_ interesting as some of the other machines we have,
and will be quite a lot of work to support.  There's no documentation
currently released on any of the peripherals.

> - what filesystems are supported ?

we currently use ext2 out of a ramdisk and nfs.  other filesystems should
work, including the UFS variant which is in use on some HP drives.  the
problem is that we don't have any scsi adapters supported yet.

> PS:
> i'm a (poor ;) student of computer science in ratisbon,
> germany, a i just have 16MB for my 735. Addidional 64MB would
> cost about 350$ i think. Some sponsors *grin* ?
> Or some ideas where i can get some memory real cheap ?

oh, I have some ideas... :-)  BTW, where's Ratisbon?  None of my german
acquaintances know where that is and mapquest has never heard of it.

> PPS: great work you're doing!
> 


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currently, we have a copy of 82596.c as lasi_82596.c that has the
modifications required to make it work with the lasi chip.  it would
be good if someone could rework this to put the common functions in
82596.c, the lasi-specific ones in lasi_eth.c and the pc-specific ones
in apricot.c.  Possibly it would be tidiest to put this into a directory,
as was done with tulip, but people may prefer not to.

Any volunteers?


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Xref: news.gmane.org gmane.linux.ports.parisc:7105

On Sun, Mar 26, 2000 at 04:10:17PM -0500, Mike Brancato wrote:
> I am trying to put Puffin on a 735/125 we have lying around.

erm.... you are aware we're not really ready for end users yet, right?
We don't have a compiler running natively yet (though we may not be too
far away now).  In fact, there's no userspace at all except for what
you compile yourself.

> Does anyone
> have a more step-by-step method of ho to put it on the machine?  I will
> get HPUX 10.20 or 11.0 (i think only 10.20 supports the 735?)

that's correct, 10.20 is the last supported HPUX on the 735.

> plus. does X compile well on pa-risc linux?  can you use the X that comes
> with HPUX in linux? i guess its not necessary to work, people will only be
> able to connect to it thru envizex x stations. 

we're about to start discussing X with HP.  stay tuned.


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Subject: [parisc-linux] [Announce] 2.3.99pre1 merge complete
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As those of you who are on the CVS commit list may already be aware,
we've merged the parisc tree up to Linus' 2.3.99pre1 release.  We've also
merged changes which use a modified assembler syntax.  If you cvs update
your kernel, you must also build new gcc and binutils.  It doesn't boot
yet, but it does link.


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From: "Gyula Matics" <gyula_matics@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Any docs on the 715?
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> the 715/old scsi chip is an ncr53c700.  everyone is too scared of it
> right now.  the 715/new scsi chip is an ncr53c710 and Gyula Matics
> committed code that should have that working.

I'm back and i'll be hammering on the 710 driver till it starts
really working. The next targets are the c700 and the c720. probably
starting with the c700 as i now have a 715/50 at home.

Gyula


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From: davisg@Celestica.com
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Subject: Re: [parisc-linux] Couple of questions
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Greetings,

Just a slight clarification on what TOC does. Although on the surface the
Transfer-Of-Control
button/switch merely appears to result in a system reset, its primary use is to
recover from
system hang conditions while preserving the machine state for later analysis,
i.e. where and
why was the sytem hung.

The TOC switch invokes the platform firmware PDCE_TOC entry point to save
machine state
to non-valitile storage (PIM TOC) after which the firmware checks MEM_TOC to
determine if
the operating system has identified an entry point to be called for recovery. If
an OS_TOC entry
point has been specified (by the OS), the platform firmware transfers control to
the specified
OS procedure. Typically, the OS_TOC entry point calls PDC_PIM to retrieve the
machine
state for display of a tomb stone marker, syncs/flushes all disk buffers,
performs a core dump
and then resets the system (not necessarily in the order specified here). One
could invoke a
debugger at any point in here to have a look around to see what was going on at
the time of
TOC.

The above information is all contained in the "PA-RISC x.x Firmware Architecture
Reference
Specification" documents available at
http://www.thepuffinegroup.com/parisc/documentation.html.

So, in summary, although TOC on the surface appears to merely 'reset' the
system, it is capable
of much more provided the OS specifies an OS_TOC entry point for recovery and
debug of
machine state at any point during system run time.


Regards,
Geoge G. Davis
Software Engineer,  Celestica Chelmsford Design Center
20 Alpha Road
Chelmsford, MA 01824





Philipp Rumpf <prumpf@puffin.external.hp.com> on 03/26/2000 01:02:15 PM

To:   Bas Valkema <b_valkema@hotmail.com>, parisc-linux@thepuffingroup.com
cc:    (bcc: George G Davis/CCH/Celestica)

Subject:  Re: [parisc-linux] Couple of questions



> 1 - how does a 715/50 boot over a network? Probably not bootp...

rboot.  there's an RPM for it on puffin.external.hp.com.

> 3 - What does the TOC button do????

Reset, usually.

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> Just a slight clarification on what TOC does. Although on the surface the
> Transfer-Of-Control button/switch merely appears to result in a system
> reset, its primary use is to recover from system hang conditions while
> preserving the machine state for later analysis, i.e. where and why was
> the sytem hung.
> 
> So, in summary, although TOC on the surface appears to merely 'reset' the
> system, it is capable of much more provided the OS specifies an OS_TOC
> entry point for recovery and debug of machine state at any point during
> system run time.

Actually, that's exactly what reset does on (most) x86 boxes.  Remember
getting 286s out of protected mode by resetting them ?

I'm not convinced having customized TOC / HPMC handlers for Linux/PA-RISC
is a good idea yet.

	Philipp Rumpf


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From: Jason Eckhardt <jason@equator.com>
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Subject: Re: [hppa-linux] Boot #4 and source on ftp site
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>
>
> Also I  forgot to see the boot_utils directory. 
>

 Be sure to peruse every word of the README. There is a lot of information
 in that file that is not included in the source files. It explains
 the boot process, the boot image layout, and other details.

> Any reasons you included libmilli.a in Makefile ? Since I was
> getting bad archive messages I took it out of Makefile. Does not seem
> to affect anything.
>

  I didn't include libmilli.a. Are you sure you have boot_rel_0.2.tar.gz, 
  the newest source code? If libmilli was added, somebody else did it. 
  It may be necessary to explicitly add libmilli when building with the cross
  tools, but I'm using HPUX and gcc 2.8.1 and the millicode is "automatically"
  linked in.
  Remember, boot_rel_0.2.tar.gz is the latest source and you should delete
  any previous source.
  Jason.


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Subject: Re: [parisc-linux] some questions
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willy@thepuffingroup.com said:
> cool, I didn't know XFree had been ported to hpux 10.10.  In fact,
> I can't see any mention of it on the XFree site, so this intrigues me
> quite a lot.

X11R6.4 compiles on HP-UX (10.20, at least), right out of the box.  I
ran it on a 715 (or was that a 735?) for a while (for some reason that
I can't remember).  I seem to recall that I compiled the server from
the XFree 3.3.x sources once also.  (I really only wanted the XFree
xterm.)

Anyway, it works, but it doesn't have any of the fancy color-recovery
extensions that the "real" HP-UX X server comes with.  It probably
also won't work with anything but really old graphics hardware, but it
would be worth a try...

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(618)398-7320             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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From: Mike Brancato <funnyguy@digitalsmackdown.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] build errors, recipe still not up to date?
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I've been folowing the recipe step by step, yet i still get build
problems.  i'm working witht he march 26th 2.3.42 version, and everything
in the kernel is building fine, except the link at the end.

anyone know?  did i not get something?

mike

make[2]: Entering directory `/tmp/mabran3/palo/ipl'
echo "char *bld_info = \"`whoami`@`hostname` `date`\";" > build.c
hppa1.1-linux-gcc -I/tmp/mabran3/palo/../linux-2.3/include -I../lib -O2
-fwritable-strings -mdisable-fpregs -Wall -c -o build.o build.c
rm -f build.c
hppa1.1-linux-ld -N -Ttext 0x500000 -e '$START$' -o ipl crt0.o byteio.o
elf64.o        ipl.o         offset.o      som.o diskpart.o    ext2.o
lib.o         pdc_bootio.o  vsprintf.o elf32.o            fileio.o
load.o        pdc_cons.o build.o
/tmp/mabran3/palo/../linux-2.3/arch/parisc/lib/milli.o
rm -f build.o
make[2]: Leaving directory `/tmp/mabran3/palo/ipl'
./palo/palo -s -b ipl/ipl -k /tmp/mabran3/palo/../linux-2.3/vmlinux -r
/tmp/mabran3/palo/../linux-2.3/ramdisk.bin \
-c "0/vmlinux HOME=/ TERM=LINUX root=/dev/ram initrd=0/ramdisk" lifimage
palo version 0.8 mabran3@alpha Mon Mar 27 16:30:10 EST 2000
/tmp/mabran3/palo/../linux-2.3/ramdisk.bin: No such file or directory
make[1]: *** [lifimage-only] Error 2



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ok, I guess I forgot to ask my real question, how would I create the
ramdisk image?

also, say I want nfs, I have two hpux 11.0 machines I could mount from.
machine A has a raid array (/users/) attached to it, and machine B mounts
that same array in /users/ via nfs.  can i have the root for the parisc
linux in /opt/linuxroot/ or something, and have the parisc machine mount
that thru nfs?  i'm new to nfs.

mike


On Mon, 27 Mar 2000, Mike Brancato wrote:

> 
> I've been folowing the recipe step by step, yet i still get build
> problems.  i'm working witht he march 26th 2.3.42 version, and everything
> in the kernel is building fine, except the link at the end.
> 
> anyone know?  did i not get something?
> 
> mike
> 
> make[2]: Entering directory `/tmp/mabran3/palo/ipl'
> echo "char *bld_info = \"`whoami`@`hostname` `date`\";" > build.c
> hppa1.1-linux-gcc -I/tmp/mabran3/palo/../linux-2.3/include -I../lib -O2
> -fwritable-strings -mdisable-fpregs -Wall -c -o build.o build.c
> rm -f build.c
> hppa1.1-linux-ld -N -Ttext 0x500000 -e '$START$' -o ipl crt0.o byteio.o
> elf64.o        ipl.o         offset.o      som.o diskpart.o    ext2.o
> lib.o         pdc_bootio.o  vsprintf.o elf32.o            fileio.o
> load.o        pdc_cons.o build.o
> /tmp/mabran3/palo/../linux-2.3/arch/parisc/lib/milli.o
> rm -f build.o
> make[2]: Leaving directory `/tmp/mabran3/palo/ipl'
> ./palo/palo -s -b ipl/ipl -k /tmp/mabran3/palo/../linux-2.3/vmlinux -r
> /tmp/mabran3/palo/../linux-2.3/ramdisk.bin \
> -c "0/vmlinux HOME=/ TERM=LINUX root=/dev/ram initrd=0/ramdisk" lifimage
> palo version 0.8 mabran3@alpha Mon Mar 27 16:30:10 EST 2000
> /tmp/mabran3/palo/../linux-2.3/ramdisk.bin: No such file or directory
> make[1]: *** [lifimage-only] Error 2
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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On Mon, Mar 27, 2000 at 05:07:03PM -0500, Mike Brancato wrote:
> ok, I guess I forgot to ask my real question, how would I create the
> ramdisk image?

Easy: Download one from puffin.external.hp.com/pub/parisc/ramdisks/
Hard: create a non-sparse file, using dd.  create an ext2 filesystem on it.
Mount it via loopback.  copy whatever you want onto it.

> also, say I want nfs, I have two hpux 11.0 machines I could mount from.
> machine A has a raid array (/users/) attached to it, and machine B mounts
> that same array in /users/ via nfs.  can i have the root for the parisc
> linux in /opt/linuxroot/ or something, and have the parisc machine mount
> that thru nfs?  i'm new to nfs.

Linux NFS Root looks for /tftpboot/<ip-address> by default.  I think
there's a way to change it, but I forget how.


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From: Corne Beerse <beerse@ats.nld.alcatel.nl>
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Subject: Re: [parisc-linux] Couple of questions
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Philipp Rumpf wrote:
> 
> > Just a slight clarification on what TOC does. Although on the surface the
> > Transfer-Of-Control button/switch merely appears to result in a system
> > reset, its primary use is to recover from system hang conditions while
> > preserving the machine state for later analysis, i.e. where and why was
> > the sytem hung.
> >
> > So, in summary, although TOC on the surface appears to merely 'reset' the
> > system, it is capable of much more provided the OS specifies an OS_TOC
> > entry point for recovery and debug of machine state at any point during
> > system run time.
> 
> Actually, that's exactly what reset does on (most) x86 boxes.  Remember
> getting 286s out of protected mode by resetting them ?
> 
> I'm not convinced having customized TOC / HPMC handlers for Linux/PA-RISC
> is a good idea yet.
> 
As I read this, the TOC button can have the next implementations:
- hardware reset, as the button on intel platforms
- three finger salute (<ctrl><alt><del>) as on intel platforms
- Boot prom prompt (if available, like Sun's <Stop><A>)
- Kernel core dump and [stop|halt|reboot|continue|shutdown]
- What does HPUX with it?
a combination of the above.

The main reason for this button is a kernel debugging aid. Not that I'm a
kernel hacker, I follow this group out of interest.

BTW, Where can I find this TOC button on my 9000/712/60 machine? is it the
white button on the front? If so, please give some software control to it.
In the past, I frequently pushed my keyboard against it, rebooting the
machine while typing......

CB

-- 
Everything should be as simple as possible but not simpler - A. Einstein
Corne' Beerse					| Alcatel Telecom Nederland
mailto:beerse@ats.nld.alcatel.nl		| Postbus 3292
talkto:+31(70)3079108 faxto:+31(70)3079191	| NL-2280 GG  Rijswijk


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On Mon, 27 Mar 2000 willy@thepuffingroup.com wrote:

> Linux NFS Root looks for /tftpboot/<ip-address> by default.  I think
> there's a way to change it, but I forget how.

If you are DHCPing the Linux box, you can specify the NFS Root
directory as an option in the DHCP file.  Also, the (regular) Linux
kernel takes a command line argument which is the NFS Root directory.

-- 
David Kennedy, Senior Linux Consultant, Linuxcare, Inc.
613.562.9594 tel, 613.562.9304 fax
dkennedy@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Lars Segerlund <lars.segerlund@axis.com>
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Subject: [parisc-linux] Current status ?
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  I just wanted to ask if you think the kernel is good enough to use on a 
725/50,
 it would be nice to start building packages.

 / seger.



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Subject: Re: [parisc-linux] gcc 2.9
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I'm also still having problems getting cross-gcc 2.9 compiled.

One of the problems is that I elected to actually package and install
binutils with the debian scripts.  For some reason (maybe it's a
reasonable default considering the nature of the packages, but you'd
think with autoconf and all...), the gcc script uses the directory you 
give it as the install prefix in order to find the binutils "build
tooldir", so unless you are installing gcc and binutils at the same
prefix, it won't find the hppa binary tools and won't assemble
libgcc1.null, even if you have e.g. hppa1.1-linux-as in your path.

However, even after an ln /usr/hppa1.1-linux/bin/
/usr/src/parisc/hppa1.1-linux/bin it still fails, this time with:

FATAL: Can't create dummy.o: Invalid bfd target

I think this is prior to where the recipe says it is supposed to
fail.  Mainly because a make install doesn't actually install 
a hppa1.1-linux-gcc binary (I have to cp it from the build directory).
I get a similar error if I then go on to try to compile
PALO, when creating crt0.o.

My guess is some ALPHA tool or lib is still getting mixed in 
with the parisc stuff, but what, and what variables do I set to
correct for it?

--
Brian S. Julin




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Subject: Re: [parisc-linux] Couple of questions
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Greetings,

Corne' Beerse wrote:
>
> As I read this, the TOC button can have the next implementations:
> - hardware reset, as the button on intel platforms
> - three finger salute (<ctrl><alt><del>) as on intel platforms
> - Boot prom prompt (if available, like Sun's <Stop><A>)
> - Kernel core dump and [stop|halt|reboot|continue|shutdown]
> - What does HPUX with it?
> a combination of the above.

HP-UX provides an OS_TOC vector which is invoked by the platform firmware's
PDCE_TOC handler. When control is transferred to the OS_TOC handler, the OS
proceeds to perform a core dump. Then reboots (resets) the system.

>
> The main reason for this button is a kernel debugging aid. Not that I'm a
> kernel hacker, I follow this group out of interest.

Correct! TOC is used as a diagnostic tool when debugging systems which appear
to be hung and are no longer responding, i.e. TOC is a high priority interrupt
(although it's not technically classified as an interrupt - rather, it is a
special form of reset which preserves machine state) which ideally invokes
a core dump then reboots (resets) the system. The core can then be reviewed
after reboot to determine the potential cause of the hang condition.

>
> BTW, Where can I find this TOC button on my 9000/712/60 machine? is it the
> white button on the front? If so, please give some software control to it.
> In the past, I frequently pushed my keyboard against it, rebooting the
> machine while typing......
>

There is no TOC button available on the Model 712. A special debug card is
used by HP hardware and OS developers for TOC among other things on this
platform.

BTW, the white button on the front left side of the Model 712 is a soft
power switch. Upon initial application of power, the switch operates as
a hard power switch which immediately affects the power supply state (ON/OFF).
After the OS (HP-UX) has booted and initialized, a bit buried in the Lasi
power control register can be flipped by the OS to enable the soft power
feature which, with proper setup of the hardware and inclusion of the
necessary OS hooks, invokes an interrupt when depressed thus allowing
a clean shutdown of the system, i.e. the soft power switch interrupt
handler invokes 'shutdown -h now' to perform a clean unmount of all
file systems, etc,. Note that not all systems which use Lasi utilize
this feature - some don't implement any form of soft power feature,
while others use a different method entirely. But in the case of the
Model 712...


Regards,
Geoge G. Davis
Software Engineer,  Celestica Chelmsford Design Center
20 Alpha Road
Chelmsford, MA 01824



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Greetings,

Philipp Rumpf wrote:
> > Transfer-Of-Control button/switch merely appears to result in a system
> > reset, its primary use is to recover from system hang conditions while
> > preserving the machine state for later analysis, i.e. where and why was
> > the sytem hung.
> >
> > So, in summary, although TOC on the surface appears to merely 'reset' the
> > system, it is capable of much more provided the OS specifies an OS_TOC
> > entry point for recovery and debug of machine state at any point during
> > system run time.
>
> Actually, that's exactly what reset does on (most) x86 boxes.  Remember
> getting 286s out of protected mode by resetting them ?
>

Oh yeah - I vaguely recall this. Painful, ugly and slow.

>
> I'm not convinced having customized TOC / HPMC handlers for Linux/PA-RISC
> is a good idea yet.

Agreed!  It's a lot of effort to add support for this. Looking back over the
parisc-linux archives, the alternative
is to use the platform firmware 'pim [hpmc|toc]' command to retrieve the machine
state at the time of crash/hang
and use this information to manually glark the vmlinux image to see where you
were at the time. Although there
is limited information to understand the overall machine context at time of
crash/hang, there's generally enough
information available from PIM to find out where you were (assuming you were
even in the kernel at the time).

BTW, there is a reference in the parisc-linux archives to trap handlers in the
Utah code, Mach I presume, which
may be useful as a model upon which to base HPMC/TOC handlers in Linux for
PA-RISC. Maybe someday...

Regards,
Geoge G. Davis
Software Engineer,  Celestica Chelmsford Design Center
20 Alpha Road
Chelmsford, MA 01824




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From: Hugo van der Kooij <hvdkooij@caiw.nl>
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Hi,

A bit ackward question perhaps but as it would a little while before there
is a kernel that will work for a non-programmer like me I would like to
run HP-UX on my HP 715/33 for the time being.

But I don't know how to install the bugger. So if anyone could issue some
short instructions I would be most pleased. Preferably by booting from
Linux server and the HP-UX 10.20 CD I have. (Got no manuals so it's a bit
hard to RTFM ;-)

Hugo.

        +------------------------+------------------------------+
        | Hugo van der Kooij     | Hugo.van.der.Kooij@caiw.nl   |
        | Oranje Nassaustraat 16 | http://www.caiw.nl/~hvdkooij |
        | 3155 VJ  Maasland      | (De man met de rode hoed)    |
        +------------------------+------------------------------+
    "Computers let you make more mistakes faster than any other invention in
      human history, with the possible exception of handguns and tequila."
                (Mitch Radcliffe)


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From: Mike Brancato <funnyguy@digitalsmackdown.net>
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Subject: [parisc-linux] using lan to boot
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i played with the 735/125 we have here, and i can't get it to sent any
packets.  it has no HD right now.  using snoop to monitor network traffic,
we looked to its hardware address.  no luck.  to go the hardware address,
i type hrdw_addr os something at the boot prompt?  we used that HW
address.  typing "boot lan.<servershwaddr>.0.0" makes the boot fail.  and
there is no network traffic from that machine.  when the computer searches
for bootable devices, it only sees P0 which is the floppy.  It prints out
liek 5 lines of numbers...  000000 000000 000050 etc...  it says boot
failed and stuff and INIT_ENTRY = -7.  could anyone explain.  we're
perflexed whay lan won't send anything.  the externet adapter is flashing
the Tx light though.

i've got an image prefared, and now i just need to boot to it.

mike


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davisg@Celestica.com wrote:
> 

> 
> There is no TOC button available on the Model 712. A special debug card is
> used by HP hardware and OS developers for TOC among other things on this
> platform.

Not sure about it, but I think that pushing the white button 3 time, i.e from
ON state going OFF/ON/OFF (may be more don't remember) does trig a TOC, and
this is High prio, i.e for dump capable OS, this mean post mortem dump
analysis due to a hang possible (i.e what I like :-)

Cheers,
Phi

--
mailto:phi@hpfrcu81.france.hp.com
WTEC Project. Kernel debugging tools


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davisg@Celestica.com wrote:
> 
> Greetings,
> 
> Corne' Beerse wrote:
> >
> > As I read this, the TOC button can have the next implementations:
> > - hardware reset, as the button on intel platforms
> > - three finger salute (<ctrl><alt><del>) as on intel platforms
> > - Boot prom prompt (if available, like Sun's <Stop><A>)
> > - Kernel core dump and [stop|halt|reboot|continue|shutdown]
> > - What does HPUX with it?
> > a combination of the above.
> 
> HP-UX provides an OS_TOC vector which is invoked by the platform firmware's
> PDCE_TOC handler. When control is transferred to the OS_TOC handler, the OS
> proceeds to perform a core dump. Then reboots (resets) the system.
> 
> >
> > The main reason for this button is a kernel debugging aid. Not that I'm a
> > kernel hacker, I follow this group out of interest.
> 
> Correct! TOC is used as a diagnostic tool when debugging systems which appear
> to be hung and are no longer responding, i.e. TOC is a high priority interrupt
> (although it's not technically classified as an interrupt - rather, it is a
> special form of reset which preserves machine state) which ideally invokes
> a core dump then reboots (resets) the system. The core can then be reviewed
> after reboot to determine the potential cause of the hang condition.
> 
> >
> > BTW, Where can I find this TOC button on my 9000/712/60 machine? is it the
> > white button on the front? If so, please give some software control to it.
> > In the past, I frequently pushed my keyboard against it, rebooting the
> > machine while typing......
> >
> 
> There is no TOC button available on the Model 712. A special debug card is
> used by HP hardware and OS developers for TOC among other things on this
> platform.
> 
> BTW, the white button on the front left side of the Model 712 is a soft
> power switch. Upon initial application of power, the switch operates as
> a hard power switch which immediately affects the power supply state (ON/OFF).
> After the OS (HP-UX) has booted and initialized, a bit buried in the Lasi
> power control register can be flipped by the OS to enable the soft power
> feature which, with proper setup of the hardware and inclusion of the
> necessary OS hooks, invokes an interrupt when depressed thus allowing
> a clean shutdown of the system, i.e. the soft power switch interrupt
> handler invokes 'shutdown -h now' to perform a clean unmount of all
> file systems, etc,. Note that not all systems which use Lasi utilize
> this feature - some don't implement any form of soft power feature,
> while others use a different method entirely. But in the case of the
> Model 712...

To my experience, in power-off state it is the power-on. I think it is a
pushbutton which activates a hold-relais to keep the power on. In power-on
mode it invokes `shutdown -h now` as you describe. This is on a machine
running HPUX 10.20, same experience (as I recal by head) on 10.10, 10.01 and
9.x.

For the ease of use in the future, my wich is to control the behavoure from
linux. I think of an entry in the init.tab file, similar to the
<ctrl><alt><delete> entry which is in there for intel platforms. For Sun
sparc machines, there is a similar switch. How is that handled in sparc
linux?

CB

btw, if I reply to messages received trouth parisc-linux@thepuffingroup.com,
it replies only to the originator, not to the puffin list. Other maillists
generate a Reply-to: header line with the maillist address. Can this be
added to the puffin headers too? Or are there reasons not to do it?

-- 
Everything should be as simple as possible but not simpler - A. Einstein
Corne' Beerse					| Alcatel Telecom Nederland
mailto:beerse@ats.nld.alcatel.nl		| Postbus 3292
talkto:+31(70)3079108 faxto:+31(70)3079191	| NL-2280 GG  Rijswijk


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Greetings,

Phi wrote:
> >
> > There is no TOC button available on the Model 712. A special debug card is
> > used by HP hardware and OS developers for TOC among other things on this
> > platform.
>
> Not sure about it, but I think that pushing the white button 3 time, i.e from
> ON state going OFF/ON/OFF (may be more don't remember) does trig a TOC, and
> this is High prio, i.e for dump capable OS, this mean post mortem dump
> analysis due to a hang possible (i.e what I like :-)
>

Ooops, I stand corrected, the power switch (used in this manner while running
HP-UX) can indeed be
used to trigger a TOC. However, I still assert that the power switch itself
cannot be directly used to
generate a TOC. Refer to the "lasi_ers.ps" on or about page 78. There is a
diagram which describes
the power switch control circuit. As described in this diagram and elsewhere in
this document, the power
switch generates a power fail interrupt to the CPU only. The hardware itself
cannot directly trigger a TOC
on the Model 712. But, apparently, you can cause a TOC on the Model 712 (while
running HP-UX) by
toggling the power switch a few times. I've tried, it works, I'll be damned, I
didn't know that.

Thanks for the insight!    :  )



Regards,
Geoge G. Davis
Software Engineer,  Celestica Chelmsford Design Center
20 Alpha Road
Chelmsford, MA 01824



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From: "Bas Valkema" <b_valkema@hotmail.com>
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Subject: Re: [parisc-linux] using lan to boot
Date: Wed, 29 Mar 2000 10:27:39 +0200
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Hi,

I had the same problem, try rbootd (rpm & tar download somewhere on the
puffin.external.hp.com site) & install in Linux x86
Next, install HPPA-Linux bootimage in /export/hp/images (I think, look in
messagedump (/var/adm/messages in my distribution) & edit /etc/rbootd.conf

should work now.

bye, BaZ


----- Original Message -----
From: Mike Brancato <funnyguy@digitalsmackdown.net>
To: <parisc-linux@thepuffingroup.com>
Sent: Wednesday, March 29, 2000 1:01 AM
Subject: [parisc-linux] using lan to boot


>
> i played with the 735/125 we have here, and i can't get it to sent any
> packets.  it has no HD right now.  using snoop to monitor network traffic,
> we looked to its hardware address.  no luck.  to go the hardware address,
> i type hrdw_addr os something at the boot prompt?  we used that HW
> address.  typing "boot lan.<servershwaddr>.0.0" makes the boot fail.  and
> there is no network traffic from that machine.  when the computer searches
> for bootable devices, it only sees P0 which is the floppy.  It prints out
> liek 5 lines of numbers...  000000 000000 000050 etc...  it says boot
> failed and stuff and INIT_ENTRY = -7.  could anyone explain.  we're
> perflexed whay lan won't send anything.  the externet adapter is flashing
> the Tx light though.
>
> i've got an image prefared, and now i just need to boot to it.
>
> mike
>
> --------------------------------------------------------------------------

From - Thu Nov 08 21:12:18 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:7127

On Wed, Mar 29, 2000 at 11:02:20AM +0200, Corne Beerse wrote:
> btw, if I reply to messages received trouth parisc-linux@thepuffingroup.com,
> it replies only to the originator, not to the puffin list. Other maillists
> generate a Reply-to: header line with the maillist address. Can this be
> added to the puffin headers too? Or are there reasons not to do it?

The current behaviour is correct.  If you want to reply to the person
sending the message privately, you reply; if you want to reply to the
list, you reply to all (possibly trimming the cc list as appropriate).
With the reply-to header, there is no way to accomplish this.  I'm sure
I've seen more than one `Considered Harmful' document on this subject.


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From: "Peter A. Peterson II" <pedro@flynn.zork.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Couple of questions
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Quoting willy@thepuffingroup.com:
> On Wed, Mar 29, 2000 at 11:02:20AM +0200, Corne Beerse wrote:
> > btw, if I reply to messages received trouth parisc-linux@thepuffingroup.com,
> > it replies only to the originator, not to the puffin list. Other maillists
> > generate a Reply-to: header line with the maillist address. Can this be
> > added to the puffin headers too? Or are there reasons not to do it?
> 
> The current behaviour is correct.  If you want to reply to the person
> sending the message privately, you reply; if you want to reply to the
> list, you reply to all (possibly trimming the cc list as appropriate).
> With the reply-to header, there is no way to accomplish this.  I'm sure
> I've seen more than one `Considered Harmful' document on this subject.

'Reply-to Munging' is, I believe, the proper term for 'reply'
being header-forced to operate as 'reply-to-all'. 

The Goodness of reply-to and reply-to-all being separate will become
clear with time, when after some period here, you go back to another
list and accidentally send a extremely personal message to *everyone*.

Speaking as one who has sent such messages,

Peter

PS: I just got an HP-9000 E45... soon to be a Linux box!


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On Wed, Mar 29, 2000 at 01:10:46PM -0600, Peter A. Peterson II wrote:
> PS: I just got an HP-9000 E45... soon to be a Linux box!

let's hope so :-)  It's got lots of devices in it which are not top
of our list to get HP to relelase docs on, nor support in any way,
but eventually it should be supportable.


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From: Lars Segerlund <lars.segerlund@axis.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] NCR700
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 Ok, is there anything I should know before I give it a try to write a NCR700
 driver for the NCR700 , is all I/O and such as usual in linux ?

 If I have got everything right I have to set up a crosscompiling gcc and boot
 the stuff from the network ?

 After that it's only to figure out how to make the NCR700 spin ? and that 
should
 be it ? after that it would be self hosting ? Is there any other SCSI 
drivers
 that needs to be written ?

 / ls.



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Subject: [parisc-linux] Building bin-utils and gcc on HP735...
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Hello, 

first of all, compliments for the project.
I started some days ago trying to install parisc-linux on a 735 box. 
I started using gcc-2.95.2 and the corresponding binutils, as downloaded from 
http://hpux.tn.tudelft.nl/

Then, realisng a needed the parisc includes from the puffin, I re-started from
scratch. As sson as I start building, both with HP Ansi C compiler as well with
gcc 2.95, the binutils, I get an error about not finding bison

Making all in po
        /bin/sh /TMP/binutils/binutils/../ylwrap "`if [ -f ../bison/bison ] ;
then echo ../bison/bison -y -L/TMP/binutils/binutils/../bison/ ; else echo
bison -y ; fi`" /TMP/binutils/binutils/arparse.y y.tab.c arparse.c y.tab.h
arparse.h --  -d
/TMP/binutils/binutils/../ylwrap[86]: bison:  not found.
*** Error exit code 1

So, i decided to try building the puffin gcc using my old bin-utils, but,
obviously, make dies as soon as bison is required.

Do I need to install bIson first of building binutils and gcc ?

I have another question as well, is FDDI supported ? 

My box is on FDDI so I'd like to know it.

Anyway, thanks in advance and again, compliments for the great job !!!! 

Matteo Boschini
System and Network Administrator
C.I.L.E.A.
(boschini@cilea.it)




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From: Phil Schwan <pschwan@cmu.edu>
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Subject: [hppa-linux] Debugging
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Kindly ignore this--the mailing list has exploded and seems to be
looking for a reason to not send mail.  It should be resolved soon.

-Phil

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On Fri, Mar 31, 2000 at 10:51:34AM +0000, BOSCHINI@ICIL64.CILEA.IT wrote:
> Then, realisng a needed the parisc includes from the puffin, I re-started from
> scratch. As sson as I start building, both with HP Ansi C compiler as well with
> gcc 2.95, the binutils, I get an error about not finding bison

That's correct, you need bison.  Would someone like to volunteer to make
a bison .depot available from pehc?  It should build properly on HPUX;
we certainly have a binary which works here, but I think it needs to be
packaged properly...


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Subject: Re: [parisc-linux] Building bin-utils and gcc on HP735...
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In-Reply-To: willy@thepuffingroup.com's message [Re: [parisc-linux] Building bin-utils and gcc on HP735...] as of Fri, Mar 31, 2000 at 11:52:11AM -0500
Xref: news.gmane.org gmane.linux.ports.parisc:7134

On Mar 31, willy@thepuffingroup.com wrote:
> On Fri, Mar 31, 2000 at 10:51:34AM +0000, BOSCHINI@ICIL64.CILEA.IT
> wrote:
> > Then, realisng a needed the parisc includes from the puffin, I
> > re-started from scratch. As sson as I start building, both with HP
> > Ansi C compiler as well with gcc 2.95, the binutils, I get an
> > error about not finding bison
> 
> That's correct, you need bison.  Would someone like to volunteer to
> make a bison .depot available from pehc?  It should build properly
> on HPUX; we certainly have a binary which works here, but I think it
> needs to be packaged properly...

There's one (1.28) at http://hpux.ee.ualberta.ca if that's good
enough...


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Subject: Re: [parisc-linux] Building bin-utils and gcc on HP735...
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Hello all, 

I installed bison and then flex (also needed) but still binutils make dies with
a strange (at leat to me) yacc error:

lex  /TMP/binutils/ld/ldlex.l && mv lex.yy.c ldlex.c
"/TMP/binutils/ld/ldlex.l" line 303: error 3: Parse tree too big, Try using %e
num
1000/1000 nodes(%e), 0/2500 positions(%p), 1/500 (%n), 0 transitions, 0/1000
packed char classes(%k), 0/4000 packed transitions(%a), 0/5000 output slots(%o)
*** Error exit code 1

Stop.
*** Error exit code 1


Nevertheless, being the impatient chap that I am, I stil ltried to buil
gg-latest, which,in turn, dies with an as error:

_muldi3
as: "/var/tmp/ccFVV40c.s", line 1: error 1052: Directive name not recognized -
FILE
as: "/var/tmp/ccFVV40c.s", line 3: error 1052: Directive name not recognized -
STABS
as: "/var/tmp/ccFVV40c.s", line 4: error 1052: Directive name not recognized -
STABS
as: "/var/tmp/ccFVV40c.s", line 5: error 1052: Directive name not recognized -
TEXT
as: "/var/tmp/ccFVV40c.s", line 6: error 1052: Directive name not recognized -
LTEXT
as: "/var/tmp/ccFVV40c.s", line 7: error 1052: Directive name not recognized -
STABS
as: "/var/tmp/ccFVV40c.s", line 8: error 1052: Directive name not recognized -
STABS


and so forth untill maximu error count is reached.....

are the two related ? 
or is it just me doing something very stupid ?

thanks in advance, 

matteo




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Xref: news.gmane.org gmane.linux.ports.parisc:7136

On Fri, Mar 31, 2000 at 05:59:32PM +0000, BOSCHINI@ICIL64.CILEA.IT wrote:
> I installed bison and then flex (also needed) but still binutils make dies with
> a strange (at leat to me) yacc error:
> 
> lex  /TMP/binutils/ld/ldlex.l && mv lex.yy.c ldlex.c
> "/TMP/binutils/ld/ldlex.l" line 303: error 3: Parse tree too big, Try using %e
> num
> 1000/1000 nodes(%e), 0/2500 positions(%p), 1/500 (%n), 0 transitions, 0/1000
> packed char classes(%k), 0/4000 packed transitions(%a), 0/5000 output slots(%o)

You need to rerun the configure script once you've installed flex; you're
still picking up HPUX lex.


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From: Steven Pritchard <steve@silug.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] K100 problem
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I've discovered an unused K100 at my new job.  I was told I could use
it, if I can make it work.  :-)

When I power it up, I get "WARN A008 CPU0" on the LCD.  Anybody have
any idea what that might mean?

Thanks...

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(618)398-7320             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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> I've discovered an unused K100 at my new job.  I was told I could use
> it, if I can make it work.  :-)
> 
> When I power it up, I get "WARN A008 CPU0" on the LCD.  Anybody have
> any idea what that might mean?

Here's the appropriate entry from the Chassis codes:

WARN  A008  No bootable device found 

 -- Jim


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Subject: Re: [parisc-linux] Building bin-utils and gcc on HP735...
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willy@thepuffingroup.com said:
> Would someone like to volunteer to make
> a bison .depot available from pehc?

There's a binary package for HP-UX 11.0 in

    ftp://puffin.external.hp.com/pub/parisc/binaries/depot/11.0/

(It's totally untested.  Please let me know if there are problems.)

I'll build a 10.20 package as soon as I get home and can reboot my
box...

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(618)398-7320             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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In-Reply-To: <200003312227.QAA16663@osiris.silug.org> from Steven Pritchard at
 "Mar 31, 2000 04:27:42 pm"
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Xref: news.gmane.org gmane.linux.ports.parisc:7140

There's an equally untested bison package for 10.20 at

    ftp://puffin.external.hp.com/pub/parisc/binaries/depot/10.20/

Feel free to let me know if there are any problems with it.

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(618)398-7320             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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From: Mike Brancato <funnyguy@digitalsmackdown.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] NCR700
Date: Sat, 1 Apr 2000 02:47:12 -0500 (EST)
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please write a driver for the ncr200.
if someone could walk me thru finding a way to boot, then please do so.
the ethernet card doesn't seem to be sending anything.  that or the HP
firmware is reporting the wrong MAC address.

mike

On Fri, 31 Mar 2000, Lars Segerlund wrote:

> 
>  Ok, is there anything I should know before I give it a try to write a NCR700
>  driver for the NCR700 , is all I/O and such as usual in linux ?
> 
>  If I have got everything right I have to set up a crosscompiling gcc and boot
>  the stuff from the network ?
> 
>  After that it's only to figure out how to make the NCR700 spin ? and that 
> should
>  be it ? after that it would be self hosting ? Is there any other SCSI 
> drivers
>  that needs to be written ?
> 
>  / ls.
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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From: Mike Brancato <funnyguy@digitalsmackdown.net>
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Subject: [parisc-linux] 735/125 boot problem?
Date: Sat, 1 Apr 2000 03:42:36 -0500 (EST)
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we have another 735 here, and like, if i leave th HD connected, it shows
HPUX trying to start, but just sits at the screen with the yellow displays
at teh bottom.  if i disconnect the HD it does nothing, but reports
1,3,6,8 on the lights, which isn't in the user manual.  any clues?this
could be another linux machine.

mike


From - Thu Nov 08 21:12:20 2018
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From: Phil Schwan <pschwan@cmu.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [hppa-linux] The kernel.
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Xref: news.gmane.org gmane.linux.ports.parisc:7143

It seems that the mailing list will forward all mail except Alex's.
So, until I find out what's wrong...:

Date: Wed, 17 Mar 1999 11:35:44 -0500
From: Alex deVries <adevries@thepuffingroup.com>
X-Mailer: Mozilla 4.07 [en] (X11; I; Linux 2.0.36 i686)
Subject: The kernel.

In case you hadn't noticed, there's the stubs of the Linux kernel setup
in CVS now.

No, it doesn't compile.  There's a gazillion errors we need to work
through before the thing actually gets through 'make dep', but we're
working through those.

- Alex
--
Alex deVries, VP Engineering
The Puffin Group, Ottawa Canada
Everything on Linux, Linux on Everything.


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 735/125 boot problem?
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Xref: news.gmane.org gmane.linux.ports.parisc:7144

Had the same problem, was a bad HD.... or the wrong HP-UX Kernel (e.g. 800
series kernel on a 700 series machine)

hope this helps,

BaZ
----- Original Message -----
From: Mike Brancato <funnyguy@digitalsmackdown.net>
To: <parisc-linux@thepuffingroup.com>
Sent: Saturday, April 01, 2000 10:42 AM
Subject: [parisc-linux] 735/125 boot problem?


> we have another 735 here, and like, if i leave th HD connected, it shows
> HPUX trying to start, but just sits at the screen with the yellow displays
> at teh bottom.  if i disconnect the HD it does nothing, but reports
> 1,3,6,8 on the lights, which isn't in the user manual.  any clues?this
> could be another linux machine.
>
> mike
>
> --------------------------------------------------------------------------

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From: Mike Brancato <funnyguy@digitalsmackdown.net>
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Subject: Re: [parisc-linux] 735/125 boot problem?
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i've completely disconnected the HD.  there are no bootable drives, i just
want to get into the firmware to start.

mike

On Sat, 1 Apr 2000, Bas Valkema wrote:

> Had the same problem, was a bad HD.... or the wrong HP-UX Kernel (e.g. 800
> series kernel on a 700 series machine)
> 
> hope this helps,
> 
> BaZ
> ----- Original Message -----
> From: Mike Brancato <funnyguy@digitalsmackdown.net>
> To: <parisc-linux@thepuffingroup.com>
> Sent: Saturday, April 01, 2000 10:42 AM
> Subject: [parisc-linux] 735/125 boot problem?
> 
> 
> > we have another 735 here, and like, if i leave th HD connected, it shows
> > HPUX trying to start, but just sits at the screen with the yellow displays
> > at teh bottom.  if i disconnect the HD it does nothing, but reports
> > 1,3,6,8 on the lights, which isn't in the user manual.  any clues?this
> > could be another linux machine.
> >
> > mike
> >
> > --------------------------------------------------------------------------
> -
> > To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com
> with
> > `unsubscribe' as the subject.
> 


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 735/125 boot problem?
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Mike Brancato wrote:
> we have another 735 here, and like, if i leave th HD connected, it shows
> HPUX trying to start, but just sits at the screen with the yellow displays
> at teh bottom.

Mike,
Have you tried connecting to the serial port? (9600, 8, N, 1)

The console might be directed to the serial port and nothing
will show up on the monitor until X11 is started. I think the
yellow boxes at the bottom are an artifact from the graphics
firmware support for function keys.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


From - Thu Nov 08 21:12:20 2018
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From: Mike Brancato <funnyguy@digitalsmackdown.net>
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Subject: Re: [parisc-linux] 735/125 boot problem?
Date: Sat, 1 Apr 2000 13:22:36 -0500 (EST)
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this is booting hpux., it should show up on the graphics card.

mike

On Sat, 1 Apr 2000, Grant Grundler wrote:

> 
> Mike Brancato wrote:
> > we have another 735 here, and like, if i leave th HD connected, it shows
> > HPUX trying to start, but just sits at the screen with the yellow displays
> > at teh bottom.
> 
> Mike,
> Have you tried connecting to the serial port? (9600, 8, N, 1)
> 
> The console might be directed to the serial port and nothing
> will show up on the monitor until X11 is started. I think the
> yellow boxes at the bottom are an artifact from the graphics
> firmware support for function keys.
> 
> grant
> 
> Grant Grundler
> Unix Development Lab
> +1.408.447.7253
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


From - Thu Nov 08 21:12:20 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 735/125 boot problem?
Date: Sat, 01 Apr 2000 10:43:32 -0800
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Mike Brancato wrote:
> this is booting hpux., it should show up on the graphics card.

Mike,
It's obviously not showing up on the graphics card.
Try the serial port.

HP-UX can use the serial port as a console to.
How do you think all the PA-RISC servers work?
(They have no graphics)

grant


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> this is booting hpux., it should show up on the graphics card.
>
> mike
>
> On Sat, 1 Apr 2000, Grant Grundler wrote:
>
> >
> > Mike Brancato wrote:
> > > we have another 735 here, and like, if i leave th HD connected, it shows
> > > HPUX trying to start, but just sits at the screen with the yellow displays
> > > at teh bottom.
> >
> > Mike,
> > Have you tried connecting to the serial port? (9600, 8, N, 1)
> >
> > The console might be directed to the serial port and nothing
> > will show up on the monitor until X11 is started. I think the
> > yellow boxes at the bottom are an artifact from the graphics
> > firmware support for function keys.

Mike,

Grant is correct. Your console is set to the serial port. The only
error in his response is that the yellow boxes are not put there by
the firmware. They are put there by the ite driver (internal terminal
emulator), which means that you succeeded in loading hp-ux and
it ran enough for the ite driver to draw the yellow boxes. If you
saw nothing on your display before this that indicates that your
console is set to the serial port rather than the graphics card.

John Marvin
jsm@fc.hp.com


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is there a way to reset the firmware to display on the graphics card?  i
guess if all else fails i can hook a palm to it....

mike

On Sat, 1 Apr 2000, John Marvin wrote:

> Mike,
> 
> Grant is correct. Your console is set to the serial port. The only
> error in his response is that the yellow boxes are not put there by
> the firmware. They are put there by the ite driver (internal terminal
> emulator), which means that you succeeded in loading hp-ux and
> it ran enough for the ite driver to draw the yellow boxes. If you
> saw nothing on your display before this that indicates that your
> console is set to the serial port rather than the graphics card.
> 
> John Marvin
> jsm@fc.hp.com
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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Subject: [parisc-linux] kernel make oldconfig error on HP-735 10.20
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Hi all, 

here I am again with my dumb questions: 
I finally (thanks to your help) succeeded in making and isntalling binutils and
gcc.

I gzcat'ed and tar x'ed linux-latest, but when I try a 

make oldconfig 

I get 

Make: line 9: syntax error.  Stop.


where line 9, as well as the rest of the makeifle, looks fine to me....

>From the README, it looks like I need bash, which I then installed, and set in
$BASH, but I still get the same error: any clues ?

thanks in advance, 

Matteo Boschini


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Subject: Re: [parisc-linux] kernel make oldconfig error on HP-735 10.20
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you need GNU make to compile the kernel.

Gyula


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From:	IN%"boschini@uff16c.cilea.it"  "Matteo Boschini"  3-APR-2000 14:02:35.64
To:	IN%"mgyula@gigant.sch.bme.hu"
CC:	IN%"boschini@cilea.it"
Subj:	RE: kernel make oldconfig error on HP-735 10.20

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From: Matteo Boschini <boschini@uff16c.cilea.it>
Subject: RE: kernel make oldconfig error on HP-735 10.20
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Yes, I found out...

But still, while running gmake oldconfig, I get the following errors:


/bin/bash: invalid character 45 in exportstr for DRIVERS-y
/bin/bash: invalid character 45 in exportstr for DRIVERS-
/bin/bash: invalid character 45 in exportstr for DRIVERS-m
/bin/bash: invalid character 45 in exportstr for DRIVERS-n

and so forth....

and when I try running 

gmake dep

I get

/bin/bash: invalid character 45 in exportstr for DRIVERS-y 
/bin/bash: invalid character 45 in exportstr for DRIVERS-
/bin/bash: invalid character 45 in exportstr for DRIVERS-m
/bin/bash: invalid character 45 in exportstr for DRIVERS-n 
Make: Unknown flag argument C.  Stop.
gmake: *** [archdep] Error 1                                                    


any clue ?

Thanks already, 

Matteo Boschini




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From: Alex deVries <adevries@redhat.com>
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Subject: [hppa-linux] PA RISC 1.1 instruction set documents.
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The pa-risc instruction set documents that used to be correctly linked
on the project WWW pages have apparantly moved.

The URL used to be:
http://www.hp.com/nsa/pa1.1/html/acd-1.html

Does anyone know where that's gone to?  Searches I try give me a LOT of
hits.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
HPPA/Linux Porting Team



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Mike Brancato said:
> we have another 735 here, and like, if i leave th HD connected, it shows
> HPUX trying to start, but just sits at the screen with the yellow displays
> at teh bottom.

Just another random idea, but is there perhaps an add-on graphics
board?

I fought with a 715 for an hour once before I realized that there was
an add-on board, and the console was going to it...

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(618)398-7320             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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hello all, 

I have another stupid question. 

I partally succeeded in gmak-ing oldconfig and dep, except for those 

/bin/bash: invalid character 45 in exportstr for DRIVERS-y 
/bin/bash: invalid character 45 in exportstr for DRIVERS- 
/bin/bash: invalid character 45 in exportstr for DRIVERS-m 
/bin/bash: invalid character 45 in exportstr for DRIVERS-n 

errors.

I then did a gmake vmlinux, in order to try the PALO build as reported in
palo's docs, getting the same errors, even though gmake goes on
till what looks like a reasonable end.

I downloaded a ramdisk.bin and moved to compile PALO. 

I do a 

bash-2.04# gmake

and this is what happens:

echo NATIVE=/TMP/palo/../linux-2.3
NATIVE=/TMP/palo/../linux-2.3
cd palo && make
        echo "char *bld_info = \"`whoami`@`hostname` `date`\";" > build.c
        gcc -O -I/TMP/palo/../linux-2.3/include -I../include -I../lib -c -o
build.o build.c
        rm -f build.c
        gcc -O -I/TMP/palo/../linux-2.3/include -I../include -I../lib  -o palo
diskpart.o    elf64.o        load.o        paloio.o      som.o  elf32.o       
error.o       palo.o build.o
        rm -f build.o
cd ipl && make
Make: Don't know how to make crt0.o.  Stop.
gmake: *** [makeipl] Error 1

any help ? 

I installed linux more than once on x86 boioxes with no problem, but I am a
little confused here....

thanks in advance, 

Matteo Boschini


From - Thu Nov 08 21:12:21 2018
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From: "Brian S. Julin" <bri@mojo.calyx.net>
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Subject: [parisc-linux] ALPHA cross compile -- progress
Date: Mon, 3 Apr 2000 11:06:37 -0400 (EDT)
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OK, so I got over my last problem by doing a more thorough
search in the gas sources for the BFD64 macro and undeffing
it everywhere...  Now I can compile and install gcc (my
compile doesn't fail on libgcc1 like the recipe says -- maybe
because I have the linux devel environment?)

Now things die during kernel compilation:
hppa1.1-linux-gcc -I/usr/src/parisc/linux-2.3/include  -D__KERNEL__
-I/usr/src/parisc/linux-2.3/include  -c -o interruption.o interruption.S
interruption.S: Assembler messages:
interruption.S:257: Error: Value of -3221225472 too large for field of 4
bytes at 36
interruption.S:257: Error: Value of -3221225472 too large for field of 4
bytes at 40
interruption.S:257: Error: Value of -3221225472 too large for field of 4
bytes at 56
make[1]: *** [interruption.o] Error 1

I note that compiling gas issues one warning about a pointer/integer 
sizes in tc-hppa.c.  Should I be looking at that for the cause, or
elsewhere?

--
Brian S. Julin



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From: "Gyula Matics" <gyula_matics@hp.com>
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Subject: Re: [parisc-linux] PALO on HP 735 10.20
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At the lower level makefiles It is still picking up hp make instead of the
GNU one.
Don't use 'gmake' but alias make to gmake or but it in the PATH before the
hp make.

Gyula


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From: willy@thepuffingroup.com
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Subject: [parisc-linux] Photos!
Date: Mon, 3 Apr 2000 21:01:19 -0400
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I've put up some photos from the recent PuffinFest at Fort Collins at
http://puffin.external.hp.com/puffinfest/ .  Enjoy, I'll put out a
newsletter tomorrow.


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From: Steve Shack <sshack@cln.etc.bc.ca>
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Subject: [parisc-linux] Nextstep artist driver/artist stuff.
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Hello everyone,
    I've recently gone on a small mission and installed NEXTSTEP on my
712. The mission was to A) have a nice usable OS on this system since
hp-ux leaves a lot to be desired and B) Hack at the artist driver. From
what i've learned so far in my all of one day with it is that the driver
for linux and the driver for nextstep are very similar.
So much so that they both have setup routines called in the same sort of
context. Both have supported mode lists in the same way and both operate
as framebuffers. This is a good thing.

    My question is to anyone reading the mailing list: Does anyone have
any information on nextsteps fb, fb artist driver or the artist board at
all. I've gathered some information but I can always use more. prumpf
has gotten a driver working in 1bpp. But i'd like to get more working...



Thanks
Steve Shack


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From: Tomasz Korycki <tkorycki@sprint.ca>
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Subject: Re: [parisc-linux] some hardware...
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  I just saw a bunch of 712/80+64MB+1GB+VRAM + (some) floppy. I think I can
get them fairly cheap. Anybody interested? Obviously I can haggle lower if I
buy more. Now, even if someone is, I will not take it as commitment, since I
didn't give the price yet. So, just let me know if You'd like to know the price.
  Also, since it doesn't really concern the linux port, answer by email,
lets not clog the wires too much...


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From: BOSCHINI@ICIL64.CILEA.IT
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Subject: Re: [parisc-linux] PALO on HP 735 10.20
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I already had gmake found before HP's make in my path. 

If I do a make --version, I get gmake's output.

I even added an alias to it, but keep getting the same errors:

/bin/bash: invalid character 45 in exportstr for DRIVERS-y
/bin/bash: invalid character 45 in exportstr for DRIVERS-
/bin/bash: invalid character 45 in exportstr for DRIVERS-m
/bin/bash: invalid character 45 in exportstr for DRIVERS-n

which, to my (poor) understanding have nothing to do with make/gmake
but with bash parsing something.

As for the palo build, having assured that I really use gmake, I keep getting
the same error:

Make: Don't know how to make crt0.o.  Stop.
gmake: *** [makeipl] Error 1

On the other hand, I tried make-ing from ipl, and everything was fine...
Then I tried the make PA=your/palinux/source/tree lifimage and everything seems
fine....

Finally, make palo from linux-2.3, gose fine.

I'll let you know how the rest goes ....

Matteo Boschini



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From: Paul Bame <bame@endor.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Building bin-utils and gcc on HP735...
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My guess is your build problems are still based on using some of the
HP tools instead of the GNU ones.  Some things to check:

    when your build asks for 'sh' it should get 'bash'

    when your build asks for 'make' it should get gnu make

    flex and bison you already know about.

Aliases aren't passed through makefiles and often not through shell
scripts either, so you'll have to do this with $PATH magic and/or
symbolic links.  I built/installed bash, make, flex, bison, binutils,
gcc, and a bunch of other GNU tools (ls, find, tar, gzip, patch) into
/opt/puffin and put /opt/puffin/bin first in my $PATH.

Your difficulties building palo strongly indicate that HP make is
sometimes being used.  palo/palo/Makefile and palo/ipl/Makefile
will work with either HP make or GNU make, but palo/Makefile will
only work with GNU make.  When you do 'make palo' from linux-2.3,
the master make eventually does 'cd ../palo; make lifimage', and
it appears that perhaps this invocation of make is getting the HP one.

Sooner or later it is probably a good idea to start using GNU versions
of all the tools referenced in the makefiles and scripts if you have
the space to do so.

Happy building!

	-Paul Bame


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From: Steven Pritchard <steve@silug.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Building bin-utils and gcc on HP735...
Date: Tue, 4 Apr 2000 13:44:57 -0500 (CDT)
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In-Reply-To: <E12cW8W-0006p3-00@endor.fc.hp.com> from Paul Bame at "Apr 4, 2000
 10:25:04 am"
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Paul Bame said:
> Sooner or later it is probably a good idea to start using GNU versions
> of all the tools referenced in the makefiles and scripts if you have
> the space to do so.

I should note that there are HP-UX 10.20 and 11.0 binary depot
packages of many GNU utilities at

    ftp://puffin.external.hp.com/pub/parisc/binaries/depot/

Everything installs to /usr/local/bin, so you can just put that at the
beginning of your PATH, and everything should be happy.  (Oh, before
installing any of it, you might want to "chmod -R go-w /usr/local".
The default permissions are insane.)

Feel free to send requests for other stuff.  (I'll try to start
building packages for the CVS gcc, binutils, etc. sometime soon.  I'm
still recovering from switching jobs and a move, so I'm way behind on
everything...)

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(618)398-7320             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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From: Michael Shalayeff <mickey@lucifier.dial-up.user.akula.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] PA RISC 1.1 instruction set documents.
Date: Wed, 17 Mar 1999 17:08:48 -0500 (EST)
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re
does not seem to exist anymore.
no searches provide a link to it anymore );
could it be that 1.1 is no longer supported?
i can share the pdf file if needed tho.
cu

Making, drinking tea and reading an opus magnum from Alex deVries:
> 
> The pa-risc instruction set documents that used to be correctly linked
> on the project WWW pages have apparantly moved.
> 
> The URL used to be:
> http://www.hp.com/nsa/pa1.1/html/acd-1.html
> 
> Does anyone know where that's gone to?  Searches I try give me a LOT of
> hits.
> 
> - Alex
> 
> -- 
> Alex deVries <puffin@redhat.com>     
> Red Hat Contrib Net maintainer          
> Ottawa, Canada  
> HPPA/Linux Porting Team
> 
> 
> -------------------------------------------------------------------------
> To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


-- 
    paranoic mickey       (my employers have changed but, the name has remained)


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Subject: [parisc-linux] Weekly News [31/Mar/2000]
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PA-RISC/Linux Weekly News - 31st March 2000               vol 2, issue 10
       
   This Week:
       News & Announcements
       Mailing List Descriptions
       This Week's CVS Activity
       State of the Port Summary
       
News & Announcements

     * Puffinfest Fort Collins
            From Saturday 24th of March to Wednesday 29th March, a flock of
            Linux/PARISC developers gathered at the Hewlett-Packard Fort
            Collins site to discuss various issues related to the port.
            We have pictures [http://puffin.external.hp.com/puffinfest/]
     * Linus 2.3.99pre1 merge
            While at the fest, we merged Linus' 2.3.99pre1 tree into our
            tree. Thanks to everyone who participated in the merge. This
            gets us through the softnet merge, which meant we couldn't
            pull later drivers into our tree. Hopefully there won't be
            any further drastic modifications of the internal APIs before
            2.4 is released. pre2 has been unstable for some people and
            pre3 has broken root NFS, so pre1 was as far as we wanted to
            go for the moment.
       
This Week's CVS Activity

     * The bulk of checkins came from the 2.3.99pre1 merge
     * We changed the assembler syntax slightly for compatibility with
       other ELF platforms.
     * Palo received some fixes.
     * The tulip driver from 2.3.99pre3 was pulled into our tree.
     * The glibc porting work continued.
       
State of the Port Summary

     * Kernel
          + based on 2.3.99pre1. Built as ELF.
     * Supported Hardware:
          + SCSI, Lan and PS/2 on Lasi I/O controller
          + Dino PCI controller
          + Elroy PCI controller
          + Tulip ethernet
          + PCNet32 ethernet
          + Intel EEPro ethernet
     * Project Page
          + http://www.thepuffingroup.com/parisc/
     * Latest Workable Image
          + ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/
            Image-20000218
     * Running PA-RISC/Linux "recipe":
          + http://thepuffingroup.com/parisc/recipe.html


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Subject: [parisc-linux] building a glibc-based tool chain
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Well it still doesn't work, but here are some UGLY HACKS I use to
get a tool chain built using our glibc, which only works on x86 I think.
There are many many failure modes which these steps avoid, or so I hope.
Lots of this is probably my misunderstanding of the glibc/gcc relationship.

First grab binutils and build it as usual.  I used

    .../binutils/configure --target=hppa1.1-linux --disable-nls \
	--prefix=/opt/palinux
    make
    make install

DO NOT allow the default --prefix to be used or you'll be SCREWED later
when you try to build gcc.

Fix your $PATH before going further:

    PATH=/opt/palinux/bin:$PATH

Now the nasty one.  Grab glibc and configure it:
    !! DO NOT allow the default --prefix to be used or you'll be SCREWED
    !! later when you try to build gcc.  If by chance you do an install
    !! into /usr/local you'll have to remove those files before gcc will
    !! build.

    .../glibc/configure --target=hppa1.1-linux --disable-nls \
	--prefix=/opt/palinux --disable-shared --disable-sanity-checks
    make

This will fail with undefined references.  Do:
    ls > nss/makedb
    make

This should complete.  This is pretty creepy but...

    for n in *
    do
	touch $n/stubs
    done

    make install

This will fail, but gets far enough to be useful.

Now in the top-level makefile in the real glibc source tree, remove
the dependency like this diff shows (otherwise the manual/ subdir build
will prevent success).

    diff -r1.1 Makefile
    142c142
    < $(inst_includedir)/gnu/stubs.h: subdir_install
    ---
    > $(inst_includedir)/gnu/stubs.h: 

Then:

    make /your/install/directory/include/gnu/stubs.h

Now remove the #ifdef __USE_UNIX98 and the matching #endif  /* Unix98 */
from /your/install/directory/include/unistd.h around line 238

Time for gcc

    .../gcc/configure --target=hppa1.1-linux --disable-nls --prefix=/opt/palinux

    make
    make install

For some unknown reason, this new hppa1.1-linux-gcc doesn't look in
/opt/palinux/include for headers, thus a quick hack:

    mv /opt/palinux/lib/gcc*/*/*/include/* /opt/palinux/include
    rmdir /opt/palinux/lib/gcc*/*/*/include/
    ln -s /opt/palinux/include /opt/palinux/lib/gcc*/*/*/include/

It might be better to use a different --prefix when configuring glibc
so as to have these header files installed where gcc expects to find them.

At this point I was able to compile but not link.  For some reason gcc
doesn't look in /opt/paliux/lib for crt1.o and friends.  When I
added crt0.o and libc by hand, the link failed with a meaningless error.

	-P


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Jim Hull said:
> WARN  A008  No bootable device found 

Apparently the terminal was dead.  I hooked it up to my PC and got
output.  Now I have another problem...  The box outputs to the serial
console, but it doesn't seem to want to take input on the serial
console.  Any ideas what might cause that?

Here's the boot messages:

--

Firmware Version  1.8

Duplex Console IO Dependent Code (IODC) revision 4

------------------------------------------------------------------------------
   (c) Copyright 1990-1994, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------

      0      100  MHz   Active                 Functional          256 KB

  Central Bus Speed (in MHz)  :        100  
  Available Memory (bytes)    :  167772160  
  Good Memory Required (bytes):   16211968  


   Primary boot path:    8/0.6   (dec)
   Alternate boot path:  8/12/5.0   (dec)
   Console path:         8/4/0.0   (dec)
   Keyboard path:        8/12/7.0   (dec)

CPU 0
  WARNING:  Memory configuration is not optimized for performance.  Refer
            to the System Installation or Memory Installation manuals for 
            memory configuration guidelines.


Processor is starting autoboot process.

To discontinue, press any key within 10 seconds.

10 seconds expired.
Proceeding...

Trying Primary Boot Path
------------------------

Booting... 
Boot IO Dependent Code (IODC) revision 7


HARD Booted.

ISL Revision A.00.38  OCT 26, 1994 

ISL booting  hpux

Boot
: disc(8/0.6.0;0)/stand/vmunix
4334092 + 380928 + 407872 start 0x17ce68

--

It does boot into HP-UX, so if I can figure out a way into it over the
network, I can probably reload the box with IgniteUX and just use it
as a HP-UX system, but obviously life would be easier if I could use
the console...

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(618)398-7320             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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From: Bdale Garbee <bdale@gag.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 712 nfsroot report
Date: Fri, 07 Apr 2000 00:34:38 -0600
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I had a little time tonight, so I tried to build the kernel tools and kernel
from CVS and boot it with nfsroot on my 712/100.  The build machine was my
dual Celeron 500 running Debian, and the bootp/nfs server is a dual Pentium
Pro elsewhere in the basement also running Debian.  It went pretty well.

Here's what I did:

 - - - - -
2000.04.06

- move everything except this notebook file down one to ~/puffin/Previous

- retrieve stuff to ~/puffin

        export PATH=/opt/puffin/bin:$PATH
        cd /home/bdale/puffin

        export CVSROOT=:ext:bdale@puffin.external.hp.com:/home/cvs/parisc
        cvs co linux-2.3 palo gcc binutils glibc

- hack on palo/Makefile per docs in palo subdir

- install headers

        cd /opt/puffin
        sudo tar xvzf /mirrors/puffin/src/include.tar.gz
        cd /home/bdale/puffin

- build and install fresh binutils

        mkdir binutils-build ; cd binutils-build
        ../binutils/configure --target=hppa1.1-linux --prefix=/opt/puffin \
                --disable-nls
        make -j4
        sudo make install
        cd ..

- build and install fresh gcc 

        mkdir gcc-build ; cd gcc-build
        ../gcc/configure --target=hppa1.1-linux --prefix=/opt/puffin \
                --disable-nls --without-libc
        make -j4 LIBGCC2_INCLUDES=-I/opt/puffin/include
        sudo make install
        cd ..

- build kernel

        (cd linux-2.3 ; make clean ; make oldconfig ; make dep) 
        (cd linux-2.3 ; make -j4 vmlinux)

- build palo, and go for it

        (cd palo ; make)
        (cd linux-2.3 ; make -j4 palo)
        scp palo/lifimage winfree:parisc/lifimage.2000.04.07

- update symlinks on winfree, and try booting the 712

 - - - - -

And here's the log of the boot...  Note that it more or less works.  The NFS
timeout errors are new to me since my pre-puffinfest image, and there were some
obvious "pauses" of a few seconds here and there not always correlated with
those errors.  Let me know if there's anything else I can try. 

Bdale



----------------------------------------------------------------------------
BootRom Version    2.3  
Memory Size:  192 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1993, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.
Selecting a system to boot.

Booting
palo ipl bdale@chunks Fri Apr  7 00:14:10 MDT 2000
0/vmlinux 1932378 bytes @ 0x6000
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.133.104.8'
Kernel: partition 0 file /vmlinux
ELF32 executable
prepare_loadable 0050368c 2

Entry 0010176c first 00100000 n 4
Segment 0 load 00100000 size 1067412 mediaptr 0x1000
Segment 1 load 00206000 size 96104 mediaptr 0x106000
Segment 2 load 00220000 size 57700 mediaptr 0x11e000
Segment 3 load 00230000 size 8192 mediaptr 0x12d000
branching to kernel entry point 0x0010176c
The Kernel has started...
Free memory starts at: 0xc02a0000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.133.104.8'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00006020 00000481 00000000 00000000 77c2ae08 00000000 00000004 00000072 00000072
vers    0000000c
CPUID vers 0 rev 0
CPU(s): 1 x PA7100(LC?) at 100.000000 MHz
Searching for devices in PDC firmware...  an older box...
Found devices:
1. Gecko 100 GSC Core Graphics (10) at 0xf8000000, versions 0x1d, 0x0, 0x85, 0x0, 0x0
2. Gecko 100 Core BA (11) at 0xf0100000, versions 0x1d, 0x0, 0x81, 0x0, 0x0
3. Gecko 100 Core SCSI (10) at 0xf0106000, versions 0x1d, 0x0, 0x82, 0x0, 0x0
4. Gecko 100 Core Lan (802.3) (10) at 0xf0107000, versions 0x1d, 0x0, 0x8a, 0x0, 0x0
5. Gecko 100 Core RS-232 (10) at 0xf0105000, versions 0x1d, 0x0, 0x8c, 0x0, 0x0
6. Gecko 100 Core Centronics (10) at 0xf0102000, versions 0x1d, 0x0, 0x74, 0x0, 0x0
7. Gecko 100 Audio (10) at 0xf0104000, versions 0x1d, 0x0, 0x7b, 0x0, 0x0
8. Gecko 100 Core PC Floppy (10) at 0xf010a000, versions 0x1d, 0x0, 0x83, 0x0, 0x0
9. Gecko 100 Core PC Keyboard (10) at 0xf0108000, versions 0x1d, 0x0, 0x84, 0x0, 0x0
10. Gecko 100 Core PC Keyboard (10) at 0xf0108100, versions 0x1d, 0x0, 0x84, 0x0, 0x0
11. Gecko 100 (712/100) (0) at 0xfffbe000, versions 0x602, 0x0, 0x4, 0x0, 0x81
12. Gecko 100 (1) at 0xfffbf000, versions 0x39, 0x0, 0x9, 0x0, 0x0
That's a total of 12 devices.
Linux version 2.3.99-pre1 (bdale@chunks) (gcc version 2.9-hppa-991112) #5 Fri Apr 7 00:14:09 MDT 2000
init_bootmem 672 32768
init_bootmem complete
initrd: 00000000-00000000
pagetable_init
miscoloured (c0220cf4)
miscoloured (c0220d0c)
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
trap_init
Calibrating delay loop... 89.70 BogoMIPS
Memory: 124916k available
kmem_test() - start
kmem_free: Bad front redzone (objp=c7ffe004, name=test-cachep)
kmem_free: Bad rear redzone (objp=c7ffe004, name=test-cachep)
kmem_test() - finished
c7ff0000 c7ff8000 c7fee000 c7ffc000
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xf0100000 found.
request_irq(258, c01bdaa4, 0x0, lasi, c7fea080)
Lasi IRQ 258 EIM 0xfffe0002<4>
lasi_alloc_irq(0xf0105000) 0x200 + 26 = 538
Found LASI serial #0 at 0xf0105000, IRQ 538
ttyS00 at iomem 0xf0105800 (irq = 538) is a 16550A
lasi_alloc_irq(0xf0107000) 0x200 + 23 = 535
Found LASI lan at 0xf0107000, IRQ 535
early initialization of device eth0 is deferred
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
Starting kswapd v1.6
Serial driver version 4.92 (2000-1-27) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
eth0: 82596 at 0xf0107000, 00 60 B0 80 A1 D8 IRQ 535.
lasi_82596.c:v1.2 02/13/2000
eth0: lp at 0xc7fb4000 (1720 bytes), lp->scb at 0xc7fb4014
request_irq(535, c01b8c60, 0x0, i82596, c7fedc00)
lasi_enable_irq(c7fea080, 23) IMR 0x100 addr f0100004
lasi_disable_irq(c7fea080, 23) IMR 0x00
lasi_enable_irq(c7fea080, 23) IMR 0x100 addr f0100004
about to RX_START status 0000
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 192.133.104.8, my address is 192.133.104.28
Looking up port of RPC 100003/2 on 192.133.104.8
Looking up port of RPC 100005/1 on 192.133.104.8
VFS: Mounted root (NFS filesystem) readonly.
tty_open
searching for 4/64
found 136/[0,256]
found 128/[0,256]
found 3/[0,256]
found 2/[0,256]
found 5/[64,64]
found 4/[64,64]
driver: -1071058048
retval 0
request_irq(538, c01a3838, 0x4000000, serial, c028fd64)
lasi_enable_irq(c7fea080, 26) IMR 0x120 addr f0100004
driver.open 0
do_execve
reading c017e45c c7fbc7c8 c7fbc588 128
nfs: server 192.133.104.8 not responding, still trying
nfs: server 192.133.104.8 OK
returned 128
02100108 053113cc 00000000 00000000
00000000 00000000 00000000 00000080
00000030 00050015 00000000 000000b0
00000003 0000011c 00000012 00000000
00000000 000003ec 00000160 000000b0
00000000 0000054c 00000000 00050000
00000000 00050000 00000015 00050000
00000000 00050000 00000000 072414b9
trying c0164134
trying c0163b38
load_som_binary
It seems to be a valid SOM executable
reading c017e45c c7fbc848 c7fea680 48
returned 48
00000004 00000028 000451d4 00001000
00001000 00009000 40001000 00047000
0000ccdc 00002f10 00000000 00000000
c7fedc00 00000000 00000000 00000000
00000000 00000000 00000000 00000000
00000000 00000000 00000000 c7feafe0
00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000
bprm->p: 2001ffc8
stack_base 20000000 b1c71000
stack_base 20001000 b1c71000
stack_base 20002000 b1c71000
stack_base 20003000 b1c71000
stack_base 20004000 b1c71000
stack_base 20005000 b1c71000
stack_base 20006000 b1c71000
stack_base 20007000 b1c71000
stack_base 20008000 b1c71000
stack_base 20009000 b1c71000
stack_base 2000a000 b1c71000
stack_base 2000b000 b1c71000
stack_base 2000c000 b1c71000
stack_base 2000d000 b1c71000
stack_base 2000e000 b1c71000
stack_base 2000f000 b1c71000
stack_base 20010000 b1c71000
stack_base 20011000 b1c71000
stack_base 20012000 b1c71000
stack_base 20013000 b1c71000
stack_base 20014000 b1c71000
stack_base 20015000 b1c71000
stack_base 20016000 b1c71000
stack_base 20017000 b1c71000
stack_base 20018000 b1c71000
stack_base 20019000 b1c71000
stack_base 2001a000 b1c71000
stack_base 2001b000 b1c71000
stack_base 2001c000 b1c71000
stack_base 2001d000 b1c71000
stack_base 2001e000 b1c71000
stack_base 2001f000 c7e1f000
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
(start_brk) 40017000
(end_code) 00047000
(start_code) 00001000
(end_data) 4000a000
(start_stack) 20020028
(brk) 40017000
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
nfs: server 192.133.104.8 not responding, still trying
nfs: server 192.133.104.8 OK
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
Stand-alone shelcurrent = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
l (version 3.4)
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
500 5 1970 53bcurrent = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c

current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
> current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
foo 1073767600, 20020620
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
-ls -l
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
quux
quuuxcurrent = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c

current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
drwxr-xr-x  6 1000     1000         1024  Feb 24 2000  .
drwxr-xr-x  6 1000     1000         1024  Feb 24 2000  ..
drwxrwxrwx  2 0        0            1024  Oct 18 1999  dev
drwxrwxrwx  2 0        0            1024  Aug 22 1999  lost+found
drwxrwxr-x  2 0        0            1024  Oct 19 1999  proc
drwxrwxr-x  2 1000     1000         1024  Feb 24 2000  sbin
> foo 1073767600, 20020620
hellow
quux
quuuxcurrent = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c

current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
do_execve
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
do_execve
do_execve
reading c017e45c c7f506c8 c7f50488 128
returned 128
02100108 05124000 00000000 00000000
00000000 00000000 00002f13 00000080
000000b4 0003a000 40005560 00000138
00000003 000001a4 00000012 000004b0
00000000 000004b0 000001d0 00000474
00000003 0000d99c 00000090 00000680
0000052d 00006e04 00000000 00006e04
00006b98 0003a000 00000000 47028f5c
trying c0164134
trying c0163b38
load_som_binary
It seems to be a valid SOM executable
reading c017e45c c7f50748 c7fb74a0 180
returned 180
10000004 00000028 00025fc4 00001000
0000f000 00005000 40001000 00035000
00009ec0 00002f10 00000000 00000000
8000000b 00000004 00000000 80000001
00000020 39323435 332d3037 42000000
31312e30 36000000 00000000 387ab5ba
00000000 80000001 00000020 39323435
332d3037 42000000 31312e30 34000000
bprm->p: 2001ff9c
stack_base 20000000 b1c71000
stack_base 20001000 b1c71000
stack_base 20002000 b1c71000
stack_base 20003000 b1c71000
stack_base 20004000 b1c71000
stack_base 20005000 b1c71000
stack_base 20006000 b1c71000
stack_base 20007000 b1c71000
stack_base 20008000 b1c71000
stack_base 20009000 b1c71000
stack_base 2000a000 b1c71000
stack_base 2000b000 b1c71000
stack_base 2000c000 b1c71000
stack_base 2000d000 b1c71000
stack_base 2000e000 b1c71000
stack_base 2000f000 b1c71000
stack_base 20010000 b1c71000
stack_base 20011000 b1c71000
stack_base 20012000 b1c71000
stack_base 20013000 b1c71000
stack_base 20014000 b1c71000
stack_base 20015000 b1c71000
stack_base 20016000 b1c71000
stack_base 20017000 b1c71000
stack_base 20018000 b1c71000
stack_base 20019000 b1c71000
stack_base 2001a000 b1c71000
stack_base 2001b000 b1c71000
stack_base 2001c000 b1c71000
stack_base 2001d000 b1c71000
stack_base 2001e000 b1c71000
stack_base 2001f000 c7c1f000
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
(start_brk) 40010000
(end_code) 00027000
(start_code) 00001000
(end_data) 40006000
(start_stack) 2002002c
(brk) 40010000
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
nfs: server 192.133.104.8 not responding, still trying
nfs: server 192.133.104.8 OK
nfs: server 192.133.104.8 not responding, still trying
nfs: server 192.133.104.8 OK
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
nfs: server 192.133.104.8 not responding, still trying
nfs: server 192.133.104.8 OK
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
Hello, worldcurrent = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc

current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7f50000, mm = c7f610e0, mmap_sem = c7f610fc
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
> current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
current = c7fbc000, mm = c7f61040, mmap_sem = c7f6105c
foo 1073767600, 20020620


From - Thu Nov 08 21:12:22 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Kernel build with CONFIG_IODC_CONSOLE fails
Date: Fri, 7 Apr 2000 01:56:20 -0700 (PDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:7170

Hi all,

after the 2.3.99-pre1 merge I am no longer able to
build a kernel with the IODC console. Building
defconfig is OK (CVS Version 20000406).

When I define CONFIG_VT, CONFIG_VT_CONSOLE and
CONFIG_IODC_CONSOLE the kernel build ends up with a
"death: pckbd_setkeycode type 1" message. This remains
even when I add CONFIG_GSC_PS2.

Although I must admit that I don't understand the
logic behind drivers/char/Makefile, I can see that
neither gsc_ps2.c nor keyb_at.c gets compiled, so this
seems to be the cause of the missing symbol.

When I append gsc_ps2.o and keyb_at.o to the line
  obj-y    += tty_io.o n_tty.o tty_ioctl.o mem.o 
              raw.o pty.o misc.o random.o
compiling gsc_ps2.c ends with the message
gsc_ps2.c:161: `KEYBOARD_BH' undeclared 

Any ideas ?
Ulrich

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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] K100 problem
Date: Fri, 7 Apr 2000 05:19:57 -0700 (PDT)
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I am not quite sure, but I think you need to set the
Keyboard Path to the same value as Console Path when
you use a serial console (or PC).

Ulrich


--- Steven Pritchard <steve@silug.org> wrote:
> Jim Hull said:
> > WARN  A008  No bootable device found 
> 
> Apparently the terminal was dead.  I hooked it up to
> my PC and got
> output.  Now I have another problem...  The box
> outputs to the serial
> console, but it doesn't seem to want to take input
> on the serial
> console.  Any ideas what might cause that?
> 
> Here's the boot messages:
> 
> --
> 
> Firmware Version  1.8
> 
> Duplex Console IO Dependent Code (IODC) revision 4
> 
>
------------------------------------------------------------------------------
>    (c) Copyright 1990-1994, Hewlett-Packard Company,
> All rights reserved
>
------------------------------------------------------------------------------
> 
>   Processor   Speed            State          
> CoProcessor State  Cache Size
>   ---------  --------   --------------------- 
> -----------------  ----------
> 
>       0      100  MHz   Active                
> Functional          256 KB
> 
>   Central Bus Speed (in MHz)  :        100  
>   Available Memory (bytes)    :  167772160  
>   Good Memory Required (bytes):   16211968  
> 
> 
>    Primary boot path:    8/0.6   (dec)
>    Alternate boot path:  8/12/5.0   (dec)
>    Console path:         8/4/0.0   (dec)
>    Keyboard path:        8/12/7.0   (dec)
> 
> CPU 0
>   WARNING:  Memory configuration is not optimized
> for performance.  Refer
>             to the System Installation or Memory
> Installation manuals for 
>             memory configuration guidelines.
> 
> 
> Processor is starting autoboot process.
> 
> To discontinue, press any key within 10 seconds.
> 
> 10 seconds expired.
> Proceeding...
> 
> Trying Primary Boot Path
> ------------------------
> 
> Booting... 
> Boot IO Dependent Code (IODC) revision 7
> 
> 
> HARD Booted.
> 
> ISL Revision A.00.38  OCT 26, 1994 
> 
> ISL booting  hpux
> 
> Boot
> : disc(8/0.6.0;0)/stand/vmunix
> 4334092 + 380928 + 407872 start 0x17ce68
> 
> --
> 
> It does boot into HP-UX, so if I can figure out a
> way into it over the
> network, I can probably reload the box with IgniteUX
> and just use it
> as a HP-UX system, but obviously life would be
> easier if I could use
> the console...
> 
> Steve
> -- 
> steve@silug.org           | Linux Users of Central
> Illinois
> (618)398-7320             | Meetings the 4th Tuesday
> of every month
> Steven Pritchard          | http://www.luci.org/ for
> more info
> 
>
---------------------------------------------------------------------------
> To unsubscribe: send e-mail to
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 

__________________________________________________
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Subject: Re: [parisc-linux] K100 problem
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Ulrich Strelow said:
> I am not quite sure, but I think you need to set the
> Keyboard Path to the same value as Console Path when
> you use a serial console (or PC).

I wondered about that...

How can I reset the Keyboard Path without being able to interrupt the
boot sequence though?

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(618)398-7320             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] K100 problem
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Steven Pritchard wrote:
> Ulrich Strelow said:
> > I am not quite sure, but I think you need to set the
> > Keyboard Path to the same value as Console Path when
> > you use a serial console (or PC).
> 
> I wondered about that...
> 
> How can I reset the Keyboard Path without being able to interrupt the
> boot sequence though?

Disconnect the primary/secondary boot devices?
If autosearch is on, might have to disconnect all bootable devices.
One should land at the PDC prompt once all paths/search have been tried.

grant

> 
> Steve
> -- 
> steve@silug.org           | Linux Users of Central Illinois
> (618)398-7320             | Meetings the 4th Tuesday of every month
> Steven Pritchard          | http://www.luci.org/ for more info
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Gyula Matics <gyula_matics@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel build with CONFIG_IODC_CONSOLE fails
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Hi Ulrich,

I just committed a small fix that should make it compile again.

Gyula


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From: dkennedy@linuxcare.com
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Subject: [parisc-linux] Hardware Database now has pictures.
Date: Sat, 8 Apr 2000 12:53:35 -0400 (EDT)
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The long overdue addition of adding pictures to the output of the
hardware database has been done.

Only a handful of entries have pictures currently and I urge you to
email me or pariscdatabase@thepuffingroup.com with URLs for pictures
to add.  

You can check out some pictures by looking at the D270, the A180, the
712/60 and more.  If you have an opinion of how it looks or how the
look can be improved please don't hesitate to drop me a line.

Thanks.

-- 
David Kennedy, Senior Linux Consultant, Linuxcare, Inc.
613.562.9594 tel, 613.562.9304 fax
dkennedy@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Subject: Re: [hppa-linux] PA RISC 1.1 instruction set documents.
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On Wed, 17 Mar 1999, Alex deVries wrote:
> The pa-risc instruction set documents that used to be correctly linked
> on the project WWW pages have apparantly moved.
> The URL used to be:
> http://www.hp.com/nsa/pa1.1/html/acd-1.html

Okay, I've mirrored that document at
http://www.thepuffingroup.com/parisc/doc/HPPA-isa.pdf

until we can find it referenced on HP's site.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
HPPA/Linux Porting Team




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From: Bdale Garbee <bdale@gag.com>
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Subject: Re: [parisc-linux] building a glibc-based tool chain
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In article <E12dGfF-00012e-00@endor.fc.hp.com> you wrote:

> Well it still doesn't work, but here are some UGLY HACKS I use to
> get a tool chain built using our glibc, which only works on x86 I think.

Well, I was tired of working on my taxes, so I sat down to see what I could 
figure out.  

Attached below is my "Notebook" entry so far for today.  The keys were 
getting limits.h from the kernel tree into the target tree before the gcc 
build, and adding a couple of new options "--with-headers" and "--with-libs" 
to the gcc build.

Using a trivial hello world program in bdale.c, with what I've done, I get:

bdale@chunks:~/puffin/user-space-test-code: hppa1.1-linux-gcc -o bdale bdale.c
/opt/palinux/bin/../lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/../../../../hppa1.
1-linux/bin/ld: cannot open crtbegin.o: No such file or directory
collect2: ld returned 1 exit status
bdale@chunks:~/puffin/user-space-test-code:

Looking at the gcc source tree, crtbegin.asm is in gcc/config/alpha... on my
Debian box, I see:

bdale@chunks:~/puffin/gcc: find /usr/lib -name crt\*
/usr/lib/gcc-lib/i386-linux/2.95.2/crtbegin.o
/usr/lib/gcc-lib/i386-linux/2.95.2/crtbeginS.o
/usr/lib/gcc-lib/i386-linux/2.95.2/crtend.o
/usr/lib/gcc-lib/i386-linux/2.95.2/crtendS.o
/usr/lib/crt1.o
/usr/lib/crti.o
/usr/lib/crtn.o
bdale@chunks:~/puffin/gcc: 

We have the crt[1in].o in /opt/palinux/lib, but not crtbegin*.  I'm off to
see if I can figure that out now.

Bdale



2000.04.08
- give glibc a shot, using Paul's notes as a starting point, and a different
  prefix (so I don't mess up what I already have)

        mkdir binutils-glibc-build
        cd binutils-glibc-build
                ../binutils/configure --target=hppa1.1-linux --disable-nls \
                        --prefix=/opt/palinux
                make -j4
                sudo make install
        export PATH=/opt/palinux/bin:$PATH

        mkdir glibc-build
        cd glibc-build
                ../glibc/configure --target=hppa1.1-linux --disable-nls \
                  --prefix=/opt/palinux --disable-shared --disable-sanity-checks
                # note - using -j on the following make breaks the build
                make
                ls > nss/makedb
                make
                for n in *
                do
                        touch $n/stubs
                done
                sudo make install


  Now in the top-level makefile in the real glibc source tree, remove
  the dependency like this diff shows (otherwise the manual/ subdir build
  will prevent success).

    diff -r1.1 Makefile
    142c142
    < $(inst_includedir)/gnu/stubs.h: subdir_install
    ---
    > $(inst_includedir)/gnu/stubs.h:  

                sudo make /opt/palinux/include/gnu/stubs.h

  Now remove the #ifdef __USE_UNIX98 and the matching #endif  /* Unix98 */
  from /your/install/directory/include/unistd.h around line 238

        mkdir gcc-glibc-build
        cd gcc-glibc-build
                ../gcc/configure --target=hppa1.1-linux --disable-nls \
                        --prefix=/opt/palinux
                make -j4
                sudo make install

        sudo mv /opt/palinux/lib/gcc*/*/*/include/* /opt/palinux/include
        sudo rmdir /opt/palinux/lib/gcc*/*/*/include/
        sudo ln -s /opt/palinux/include \
                /opt/palinux/lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/include

                        sort of works, but same problems Paul had...

- try again, after trolling around http://gcc.gnu.org/onlinedocs/

        sudo rm -r /opt/palinux
        cd binutils-glibc-build
                sudo make install
        cd glibc-build
                sudo make install
                        - fails on the texinfo thing at the end, ignoring
        sudo vi /opt/palinux/include/unistd.h           (as above)
        (cd linux-2.3/include ; tar cf - linux/limits.h) | \
                (cd /opt/palinux/include ; sudo tar xvf -)
        cd gcc-glibc-build
                sudo rm -r *
                sudo ../gcc/configure --target=hppa1.1-linux --disable-nls \
                        --prefix=/opt/palinux \
                        --with-headers=/opt/palinux/include \
                        --with-libs=/opt/palinux/lib
                sudo make -j4
                sudo make install




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From: Bdale Garbee <bdale@gag.com>
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Subject: Re: [parisc-linux] building a glibc-based tool chain
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In article <20000409060602.269491E9D6@rover.gag.com> you wrote:

> We have the crt[1in].o in /opt/palinux/lib, but not crtbegin*.  I'm off to
> see if I can figure that out now.

So, crtbegin/crtend are related to constructors and destructors for C++.  I
see where they get defined as part of extra_parts in the gcc build for various
architectures, but I confess to not understanding how they are being included
in my builds... 

If I run the compiler with -nostdlib and explicitly specify things, ld seg
faults.  See below.

With my extra options to the gcc builds cleaning up some of the manual goo
Paul was doing, and putting limits.h in place making the gcc build finish
cleanly, I feel like I've made some progress.  However, since I don't have any
idea why ld is seg faulting and have heard this isn't the first time that's
been tripped over, and since I don't see offhand how to get gcc to leave
out crtbegin any other way right now, I think I'm stuck.

Hmmm.  The "cannot size stub section" might correlate with Paul's ugly hack
making stub files?  Is this just garbage in -> garbage out?  Hmmm.

Bdale


bdale@chunks:~/puffin/user-space-test-code: hppa1.1-linux-gcc -nostdlib -o bdale /opt/palinux/lib/crt1.o bdale.c -lc -lgcc
collect2: ld terminated with signal 11 [Segmentation fault]
/opt/palinux/bin/../lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/../../../../hppa1.1-linux/bin/ld: can not size stub section: Bad value
bdale@chunks:~/puffin/user-space-test-code: 


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From: Bdale Garbee <bdale@gag.com>
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Subject: [parisc-linux] 712/100 crashed
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Just came back to my 712's console window after spending some time on glibc
(it was booted just before that, a few hours ago), and found the following
crash info...  Before the 2.3.99 merge, I was not seeing the NFS timeouts, 
and it didn't crash, it would just lose the network after a while.  Hope
this helps someone.

??

Bdale




Stand-alone shelcurrent = c7fbc000, mm = c7f68040, mmap_sem = c7f6805c
l (version 3.4)
current = c7fbc000, mm = c7f68040, mmap_sem = c7f6805c
500 5 1970 53bcurrent = c7fbc000, mm = c7f68040, mmap_sem = c7f6805c

current = c7fbc000, mm = c7f68040, mmap_sem = c7f6805c
current = c7fbc000, mm = c7f68040, mmap_sem = c7f6805c
> current = c7fbc000, mm = c7f68040, mmap_sem = c7f6805c
current = c7fbc000, mm = c7f68040, mmap_sem = c7f6805c
current = c7fbc000, mm = c7f68040, mmap_sem = c7f6805c
current = c7fbc000, mm = c7f68040, mmap_sem = c7f6805c
foo 1073767600, 20020620
current = c7fbc000, mm = c7f68040, mmap_sem = c7f6805c

Dumping Stack from c0230000 to c0230a00:
0000 00000000 00000000 00000000 00000000 c020d880 00000000 00000000 ffffffff
0020 ffffff9c 00000000 00000000 00000000 c7f68040 00000000 00000000 c023003c
0040 c023003c c7fbc000 c7f70000 00000000 00000000 00000000 00000000 00000000
0060 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c0230000
0080 c0230000 c7fbc000 00000000 00000000 00000000 00000000 00000000 c023009c
00a0 c023009c c02300a4 c02300a4 c0230648 00000000 00000000 00000000 00000000
00c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c0130558
00e0 00000000 00000000 00218ec5 00000000 00000000 00000000 00000000 00218ec5
0100 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
01a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
01c0 fffffeff fffffeff ffffffff 00000000 ffffffff ffffffff ffffffff ffffffff
01e0 ffffffff ffffffff 00800000 ffffffff 00000000 ffffffff ffffffff ffffffff
0200 00000800 00000800 00000400 00000400 ffffffff ffffffff ffffffff ffffffff
0220 00007377 61707065 72000000 00000000 00000000 00000000 00000000 00000000
0240 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0260 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0280 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
02a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
02c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
02e0 00000000 00000000 00000000 00000000 00000000 00000000 c0230600 c01034f0
0300 00000000 00000000 00000000 00000000 c0214000 c0213040 c0213050 00000000
0320 c02131f0 00000000 00000000 00000000 00000000 00000000 c0230334 00000000
0340 00000000 00000000 00000000 00000001 00000000 00000000 c0230358 c0230358
0360 c0230360 c0230360 c0230368 00000000 00000000 00000000 00000000 00000000
0380 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
03a0 00000000 00000000 00000000 0050009c 00000000 00000000 00000000 00000000
03c0 bc0fd569 c0220d74 fff00000 00000000 7f7fffff 00000001 00214000 00800327
03e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0400 00000000 00000000 00000000 00000000 00000064 c0120144 00000001 c0113cdc
0420 00000000 00000000 00000000 c0220f54 01900000 00f02300 00000000 00000000
0440 00000000 00000000 c0294d70 c0295988 00504b44 00000000 00000000 c02a0000
0460 c0295988 c0000000 c02a0000 c0295988 c0000000 00000000 00000072 00000072
0480 00000004 00000000 77c2ae08 c7ffc000 c02c143c ffffffff c7fe9140 c0101cac
04a0 00000000 00000000 c012c3b8 c02208d4 00000000 00000000 00000000 00000000
04c0 c063ff18 43f02aa9 00004800 00004400 000043ff c0295800 00504b44 c7ff0000
04e0 c7ff8000 00008000 c020e000 c01023d4 c063ff18 c7ff0000 c7ff8000 00008000
0500 000cfd0b c020e000 c01023d4 c0230000 c7fee000 c020e000 00008000 c7ff8000
0520 c0100000 c7ff0000 00504b44 c0295800 000043ff 00004400 00004800 43f02aa9
0540 00004000 00000000 00000c00 00000000 c0230000 00000001 00000001 00000000
0560 00000001 00000032 00000019 c0206000 00000000 00000001 c0230640 00000000
0580 00000000 00002000 00004400 00002000 00000000 00000000 00000000 00000000
05a0 00000000 00000000 c01023e0 c01023d8 00000000 00004000 00000000 00000003
05c0 08000240 c0235000 c01131dc c0230500 c0230000 00000000 c7f68040 c7f88000
05e0 c0100000 c7ff0000 00504b44 c0295800 000043ff 00004400 00004800 43f02aa9
0600 00004000 00000000 00000c00 00000332 00006640 00000000 00000001 00006660
0620 00000333 00001000 00000020 c010450c 00002000 c020b700 c0230700 00000000
0640 c0295800 00504b44 c7ff0000 c7ff8000 00008000 c020e000 c7fee000 c0230000
0660 00000000 00000000 c01131a8 c01131ac 00000000 00000001 c0230740 00000003
0680 08160253 00000000 00004400 00002000 00000000 00000000 00000000 00000000
06a0 00000000 00000000 c0103500 c0114bf8 00000000 c7fff8e8 c7fff8e0 0000000f
06c0 20000000 20000000 00000002 00000102 00004000 43f02aa9 00004800 00004400
06e0 000043ff c0295800 c0114afc c0114afc c7ff8000 00008000 c020e000 c7fee000
0700 c0295800 c020627c c0206570 00000100 c0230500 c0295800 00000000 c0230500
0720 00004800 00000001 c0114afc c01bdae0 00000007 c020e4fc 00000060 0000008c
0740 c0230500 c020654c 00000002 c0206570 00000102 c0230500 c0230500 c7fea080
0760 c063ff18 00004400 c01315b8 c01315b8 c0230740 c7ff0000 c7ff8000 00008000
0780 c0295800 0000000e c023aa88 00000001 00000000 c0295800 00000000 c0295800
07a0 0000000b c023aa98 c0114bc0 c0114bf8 000043ff 00004400 00004800 43f02aa9
07c0 00000100 00000100 00000017 00000217 c0295fe0 00000000 fffffffe c0295bb4
07e0 c0295ba0 c0235000 c0114afc c0114afc c0235000 00000001 c02308c0 c0114afc
0800 00000c00 00000000 c0230500 43f02aa9 00000c00 00000000 c0230500 43f02aa9
0820 00004800 00004400 000043ff c0230500 c7fea0e0 00000002 c0206570 00000217
0840 c0230500 c0295800 c7fbbe28 c7fedc00 00000000 c029eba4 c01eb9ac c029eba4
0860 c021cf30 c7fedc00 c0133e40 c0133be4 00000806 00000001 c0230940 c01c5678
0880 c0296000 00000001 00000001 00000000 c0230500 00000000 c0295800 00000000
08a0 c020d000 c020e000 c0295ed8 c0133a64 c020de40 00004400 00004800 00000002
08c0 0004000a c021c000 c01b9118 c7fb4000 c7fb4290 c7fedc00 00000000 c021c000
08e0 c0100000 c021c000 c7fea0e0 c0230500 000043ff c7fb4000 ffffffff c0000000
0900 c7fb4014 00004000 c7fb4016 0000a002 c0000000 c0000000 c01b8c60 00000000
0920 00000217 fffffff8 c7fb46c0 c0206000 00000000 00000001 c0230a00 c0114afc
0940 00000000 00002000 00004400 00000000 00000000 00000000 00000000 00000000
0960 00000000 00000000 c01b9174 c01b9178 00000000 00000003 c0230a40 00000002
0980 0dc01053 00000000 ffffffff 00000000 00000000 c0230500 43f02aa9 00000000
09a0 00219065 c020d800 0000012a c01a35cc c7fedc00 c7fedc00 c7f85900 c0856801
09c0 c7f7a0e0 ffffffff 00000002 c0206570 00000102 c0230780 c0230780 c7fea080
09e0 c0100000 c029e800 c0114afc c0104a84 00000000 c7f7c034 c029e800 43f02aa9

Kernel Fault: Code=15 regs=c02308c0 (Addr=ffffffff)

PSW  : 0004000a  GR 1 : c021c000  GR 2 : c01b9118  GR 3 : c7fb4000  
GR 4 : c7fb4290  GR 5 : c7fedc00  GR 6 : 00000000  GR 7 : c021c000  
GR 8 : c0100000  GR 9 : c021c000  GR10 : c7fea0e0  GR11 : c0230500  
GR12 : 000043ff  GR13 : c7fb4000  GR14 : ffffffff  GR15 : c0000000  
GR16 : c7fb4014  GR17 : 00004000  GR18 : c7fb4016  GR19 : 0000a002  
GR20 : c0000000  GR21 : c0000000  GR22 : c01b8c60  GR23 : 00000000  
GR24 : 00000217  GR25 : fffffff8  GR26 : c7fb46c0  GR27 : c0206000  
GR28 : 00000000  GR29 : 00000001  GR30 : c0230a00  GR31 : c0114afc  
SR0  : 00000000  SR1  : 00002000  SR2  : 00004400  SR3  : 00000000  
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  

IASQ : 00000000 00000000 IAOQ : c01b9174 c01b9178
 IIR : 0dc01053 ISR : 00000000 IOR : ffffffff


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] building a glibc-based tool chain
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Bdale Garbee <bdale@gag.com> writes:

> In article <20000409060602.269491E9D6@rover.gag.com> you wrote:
> 
> > We have the crt[1in].o in /opt/palinux/lib, but not crtbegin*.  I'm off to
> > see if I can figure that out now.
> 
> So, crtbegin/crtend are related to constructors and destructors for C++.  I
> see where they get defined as part of extra_parts in the gcc build for various
> architectures, but I confess to not understanding how they are being included
> in my builds... 

They aren't always needed.  I suspect they may be related to whether
you compile code as position-independent or not, as the spec file on
i386 seems to indicate that they get linked in if you link with
-shared:

    16  *endfile:
    17  %{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s

    28  *startfile:
    29  %{!shared:      %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s}                   %
    29  {!p:%{profile:gcrt1.o%s}                         %{!profile:crt1.o%s}}}}
    29      crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}

On Alpha (actually 64-bit RISC architectures in general, I think - for
rather intuitive reasons related to the size of instructions vs. the
size of pointers :) all code is position-independent, which is
probably why they're part of the standard runtime environment there.

So, this is probably another side effect of gcc and binutils assuming
that PA-RISC ELF targets are always 64-bit targets.  However I'm not
up on the details of Sammy's ELF32 ABI ...

Needless to say we won't be compiling any C++ programs for a little
while at least (can we remove dselect from the dpkg sources? please?
pretty please? :)  So, you could probably just edit them out of your
spec file manually for the time being.

-- 
David Huggins-Daines, Senior Linux Consultant, Linuxcare, Inc.
613.562.1239 desk, 613.223.0225 mobile
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Subject: Re: [parisc-linux] building a glibc-based tool chain
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In article <87em8fjlkm.fsf@tarwebok.thepuffingroup.com> you wrote:

> So, this is probably another side effect of gcc and binutils assuming
> that PA-RISC ELF targets are always 64-bit targets.  However I'm not
> up on the details of Sammy's ELF32 ABI ...

Aha.

> Needless to say we won't be compiling any C++ programs for a little
> while at least (can we remove dselect from the dpkg sources? please?
> pretty please? :)

Yes, in fact.  I chatted with Wichert (Debian Project Leader and one of the
current dpkg maintainers) the other night about how to bootstrap dpkg, and
there are now options that assist the process by skipping the dselect build
and the documentation build, both of which have *very* deep dependency chains.
On the other hand, I've been using Debian so long that dselect (with the apt
method, of course!) is a highly productive tool to me...  :-)  

> So, you could probably just edit them out of your spec file manually for 
> the time being.

I hadn't thought of that.  I'll try it in a bit.  Family obligations this
morning and the last regular-season Avalanche hockey game this afternoon...

Oh, and one more set of observations from last night, that I got too tired to
send off properly before I gave up and went to bed:

If you build glibc ala Paul, install it, build gcc and install it, then
build glibc again *pristine*, it builds completely and installs.  I gather
we've got a circular dependency between gcc and glibc builds.  I wasn't overly
surprised by this, but it's sort of rude after building cross compilation
environments using newlib.  So, once there is a bootstrapped glibc in the 
target tree, and gcc has been built, go back and undo the hacks (except the 
Unix98 one, which is still needed) and glibc builds and installs cleanly!

Bdale


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From: Sam Creasey <sammy@sammy.net>
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Subject: [parisc-linux] page colouring....
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Ok, so, the bit about applying a given "colour" to a page due to it's
virtual page has been confusing me for quite some time now...   

However, earlier today, __get_coloured_pages() was misbehaving
(e.g. destroying the zone allocations badly enough that no more
alloc_pages() calls would fly, and death ensued.), so I turned it off.

Simply using alloc_page() and removing all colour checks seems to have
helped matters considerably (speed and stability).


Anyone with better knowledge of why it's here want to enlighten me?


-- Sam


# uname -a
Linux 10.0.0.5 2.3.99-pre1 #41 Sun Apr 9 21:07:39 EDT 2000 parisc unknown
#




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From: Ingo Matthaes <imatthae@hpugrca.grc.hp.com>
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Hi all,

When will the anonymous CVS tree be syncd again ?
Or has the repository been changed ? Im not able to see the changed 
mentioned in CVS Digests.

Ingo

-- 
Ingo Matths

Ingo Matths                        Hewlett-Packard GmbH
Tel: ++49-2102-906-279              German Response Center
Fax: ++49-2102-907-934              Berliner Str. 111
Mailto:imatthae@grc.hp.com          40880 Ratingen
                                    Germany
OpenPGP fingerprint = 4298E7785FFD65DC8950 14E9F17F8CB5B611AA4A



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Hi all,

When will the anonymous CVS tree be syncd again ?
Or has the repository been changed ? Im not able to see the changed
mentioned in CVS Digests.

Ingo

-- 
Ingo Matths

Ingo Matths                        Hewlett-Packard GmbH
Tel: ++49-2102-906-279              German Response Center
Fax: ++49-2102-907-934              Berliner Str. 111
Mailto:imatthae@grc.hp.com          40880 Ratingen
                                    Germany

OpenPGP fingerprint = 4298E7785FFD65DC8950 14E9F17F8CB5B611AA4A


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From: 5116@telia.com
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Subject: [parisc-linux] ASP patchlet
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Hello, all

With this patch I get some noises from the core LAN in my old ASP 715.
It dont seem to get anny interrupts yes though, any comments?

82596.c: MAC of HP700 LAN blidely read from prom !
eth0: 82596 at 0xf0826000, 08 00 09 62 71 EA IRQ 535.
lasi_82596.c:v1.2 02/13/2000
eth0: lp at 0xc2fcc000 (1720 bytes), lp->scb at 0xc2fcc014
request_irq(535, c01b1a64, 0x0, i82596, c2fecc00)
lasi_enable_irq(c2fe9080, 23) IMR 0x100 addr f0800004
lasi_disable_irq(c2fe9080, 23) IMR 0x00
eth0: i82596 initialization timed out with status 0000, cmd 0000.
lasi_enable_irq(c2fe9080, 23) IMR 0x100 addr f0800004 
eth0: receive unit start timed out with status 0000, cmd 0100.
about to RX_START status 0000
i82596 init timed out with status 0000, cmd 0010.
Sending BOOTP requests............. timed out!
IP-Config: Auto-configuration of network failed.
RTNL: assertion failed at devinet.c(785):inetdev_event
eth0: close1 timed out with status 0000, cmd 0010.
eth0: close2 timed out with status 0000, cmd 0440.
i596_cleanup_cmd
i596_cleanup_cmd timed out with status 0000, cmd 0440.
lasi_disable_irq(c2fe9080, 23) IMR 0x00
RTNL: assertion failed at devinet.c(785):inetdev_event  

/Daniel
                                                                                                       
--- drivers/gsc/lasi.c	Mon Apr 10 23:46:13 2000
+++ drivers/gsc/lasi.c.de	Mon Apr 10 23:43:40 2000
@@ -148,6 +148,11 @@
 	while (lasi &&
 		(((unsigned int) lasi->hpa & ~0xffff) != ((unsigned int) dev->hpa & ~0xffff)))
 	{
+	        if ((unsigned int)lasi->hpa == 0xf0800000 && 
+		    ((unsigned int)dev->hpa & 0xffff0000) == 0xf0820000) {
+		    /* Special case: the ASP do not follow later LASI rules */
+		    break;
+		}
 		lasi = lasi->next;
 	}
 
@@ -158,24 +163,41 @@
 		return 0;
 	}
 
-	/*
-	** "irq" bits below are numbered relative to most significant bit.
-	*/
-	switch (off) {
-	case 0x0000:	irq = 17; break; /* Lasi itself */
-	case 0x2000:	irq = 24; break; /* Centronics/Parallel Port */
-	case 0x4000:	irq = 18; break; /* Audio */
-//	case 0x4???:	irq = 13; break; /* ISDN */
-	case 0x5000:	irq = 26; break; /* RS232 */
-	case 0x6000:	irq = 22; break; /* SCSI */
-	case 0x7000:	irq = 23; break; /* LAN */
-	case 0x8000:	irq =  5; break; /* Keyboard/Mouse */
-	case 0xA000:	irq = 11; break; /* Floppy Disk Controller */
-	default: 
-		printk("Lasi: never seen the HPA offset of 0x%x.\n",off);
-		return(0);
-	}
-
+       if (lasi->hpa == 0xf0800000) {
+	  /* The ASP */
+	  switch (off) {
+	   case 0xF000:	irq = 17; break; /* ASP itself (bus error) */
+	   case 0x4000:	irq = 24; break; /* Centronics/Parallel Port */
+	   case 0x9000:	irq = 18; break; /* Audio */
+	   case 0x3000:	irq = 26; break; /* RS232 A */
+	   case 0x2000:	irq = 25; break; /* RS232 B */
+	   case 0x5000:	irq = 22; break; /* SCSI */
+	   case 0x6000:	irq = 23; break; /* LAN */
+	 
+	   default: 
+	     printk("ASP: never seen the HPA offset of 0x%x.\n",off);
+	     return(0);
+	  }
+       }else{
+	  
+	  /*
+	   ** "irq" bits below are numbered relative to most significant bit.
+	   */
+	  switch (off) {
+	   case 0x0000:	irq = 17; break; /* Lasi itself */
+	   case 0x2000:	irq = 24; break; /* Centronics/Parallel Port */
+	   case 0x4000:	irq = 18; break; /* Audio */
+	     //	case 0x4???:	irq = 13; break; /* ISDN */
+	   case 0x5000:	irq = 26; break; /* RS232 */
+	   case 0x6000:	irq = 22; break; /* SCSI */
+	   case 0x7000:	irq = 23; break; /* LAN */
+	   case 0x8000:	irq =  5; break; /* Keyboard/Mouse */
+	   case 0xA000:	irq = 11; break; /* Floppy Disk Controller */
+	   default: 
+	     printk("Lasi: never seen the HPA offset of 0x%x.\n",off);
+	     return(0);
+	  }
+       }
 printk("lasi_alloc_irq(0x%p) 0x%x + %d = %d\n", dev->hpa, lasi->lasi_region->data.irqbase, irq, lasi->lasi_region->data.irqbase + irq);
 
 	return lasi->lasi_region->data.irqbase + irq;
--- drivers/net/lasi_82596.c	Mon Apr 10 23:46:11 2000
+++ drivers/net/lasi_82596.c.de	Mon Apr 10 23:44:01 2000
@@ -115,6 +115,8 @@
 #define pdc(addr) asm volatile("pdc (%%sr1, %0)" : : "r" (addr))
 #define fic(addr) asm volatile("fic (%%sr1, %0)" : : "r" (addr))
 
+#define LAN_PROM_ADDR	0xF0810000
+
 void _dma_cache_wback(void *addr, int len)	/* addr = virtual adress */
 {	
     unsigned old_sr1;
@@ -1122,8 +1124,14 @@
 	    return ENODEV;
 
 	if (!pdc_lan_station_id( (char*)&eth_addr, (void*)dev->base_addr)) {
-	    printk("82596.c: MAC of HP700 LAN could not be read !\n");
-	    return ENODEV;
+	   for(i=0;i<6;i++)
+	       eth_addr[i] = gsc_readb(LAN_PROM_ADDR+i);
+	   printk("82596.c: MAC of HP700 LAN blindely read from the prom!\n");
+	    
+#if 0
+	   printk("82596.c: MAC of HP700 LAN could not be read !\n");
+	   return ENODEV;
+#endif
 	}
 
 	ether_setup(dev);

-- 
Daniel Engstrm - Lilla Fabriken AB - Technical Support
daniel@lillfab.se - Work related.  5116@telia.com - Private.


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Michael Ang & I are at the HP booth in Montreal on Tuesday and Wednesday        this week.  I'd be more verbose, but this dialup connection is likely           to give up at any moment.


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I checked on the page -- it should be back up in a couple of days at
http://dtf.hp.com

Rich


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To: Ingo Matthaes <imatthae@hpugrca.grc.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:7188

On Mon, Apr 10, 2000 at 09:32:54AM +0200, Ingo Matthaes wrote:
> Hi all,
> 
> When will the anonymous CVS tree be syncd again ?
> Or has the repository been changed ? Im not able to see the changed 
> mentioned in CVS Digests.

Are you perhaps on a branch instead of the trunk?  You could get a tarball
from the ftp site and then start syncing against that.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] tulip on parisc-linux
Date: Mon, 10 Apr 2000 21:26:18 -0700
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[ FYI - I posted this to linux-kernel mailing list earlier today
  and David Miller already replied saying this version of tulip
  driver works on Sparc64 (which has 64-byte cachelines) ]

Hi all,
I'm trying to bring-up tulip driver on an HP C3000 workstation.
I started out using a cogent (adaptec) 21143 PCI board.  I've
collected a PCI bus trace (cogent1.txt) and corresponding console
output (cogent1_cons.txt).  Both can be found on
	ftp://puffin.external.hp.com/pub/parisc/debug.

I then tried a HP 21143 PCI card and got similar results.
Output is in the same place under "hp100bt1*.txt".

The tulip driver in the parisc source tree "works" (NFS root)
for Thomas Bogendoerfer on his A180 (PA1.1, 32-byte cacheline) using
the "built-in" DEC 21143.  IIRC, Thomas pulled the current source
in the parisc-linux tree from 2.3.99-pre3.

Couple of questions:
1) Anyone know if drivers/net/tulip/* (pre3 or later) work on
   an architecture with 64-byte cachelines?
   (21143 doc says it supports 8/16/32 byte cachlines)

2) The tulip fetches way more data than it needs for the setup frame
   TX descriptor. (See lines -215 to -4 of the cogent PCI trace).
   Anyone know why?
   (I can arrange a free 712/80 for who ever can explain that to me)

There is also an issue with the tulip trying to mem_read from 0xfffffffc.
but I think that's a "side effect" of #2 above.


FWIW, my goal was to debug "Dynamic DMA mapping" support for "Astro"
based parisc platforms (eg B1000/C3000/J5000). Interested parties can
look at the code in:
http://puffin.external.hp.com/cgi-bin/cvsview/linux-2.3/arch/parisc/kernel/sba_iommu.c

thanks,
grant

Grant Grundler
grundler@removethis.cup.hp.com


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel build with CONFIG_IODC_CONSOLE fails
Date: Tue, 11 Apr 2000 01:12:21 -0700 (PDT)
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To: Gyula Matics <gyula_matics@hp.com>
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--0-760313750-955440741=:27233
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

Hi all,

after Gyula's fix I was able to to compile the kernel
with CONFIG_IODC_CONSOLE. However booting this kernel
results in the (in)famous message "Kernel panic:
Attempted to kill init!".

In the beginning of the boot log there is a
"iodc_con_init" message, but the message "Console:
switching to IODC console" is missing. Instead there
are the following messages:

tty_open
not again
Warning: unable to open an initial console.

which seem to indicate that opening the IODC console
has failed. I have attached the complete boot log to
this message.

Ulrich
--- Gyula Matics <gyula_matics@hp.com> wrote:
> Hi Ulrich,
> 
> I just committed a small fix that should make it
> compile again.
> 
> Gyula
> 

__________________________________________________
Do You Yahoo!?
Talk to your friends online with Yahoo! Messenger.
http://im.yahoo.com
--0-760313750-955440741=:27233
Content-Type: text/plain; name="bootlog.txt"
Content-Description: bootlog.txt
Content-Disposition: inline; filename="bootlog.txt"

              (c) Copyright Hewlett-Packard Company, 1991, 1992
Portions of this code are (c) Copyright Samsung Electronics Co., Ltd, 91, 92

PDC ROM rev. 1.4
IODC ROM rev. 1.2
48 MB of memory have been configured.


Selecting a system to boot.
To stop selection process, press and hold the ESCAPE key.

Selection process stopped.

Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.6.0                 HP      C2490AM
P1                    scsi.5.0                 NEC     CD-ROM DRIVE:465
P2                    scsi.4.0                 NEC     CD-ROM DRIVE:465
P3                    scsi.3.0                 NEC     CD-ROM DRIVE:465
P4                    scsi.2.0                 NEC     CD-ROM DRIVE:465
P5                    scsi.1.0                 NEC     CD-ROM DRIVE:465
P6                    scsi.0.0                 NEC     CD-ROM DRIVE:465
P7                    lan.0004ac-4425c5.0.0    be8135



b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu: b p7

Trying lan.0004ac-4425c5.0.0
Boot path initialized.
Attempting to load IPL.


Hard booted.
palo ipl root@Ullis_PC Mon Apr 10 21:29:42 MEST 2000
0/vmlinux 1851223 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/ram initrd=0/ramdisk'
0/ramdisk 870400 bytes @ 0x1ca757
Kernel: partition 0 file /vmlinux
Ramdisk: partition 0 file /ramdisk
ELF32 executable
                prepare_loadable 0050368c 2

Entry 0010125c first 00100000 n 4
Segment 0 load 00100000 size 1031008 mediaptr 0x1000
Segment 1 load 001fc000 size 104484 mediaptr 0xfd000
Segment 2 load 00218000 size 49272 mediaptr 0x117000
Segment 3 load 00228000 size 8192 mediaptr 0x124000
Loading ramdisk 870400 bytes @ 0051c000...
branching to kernel entry point 0x0010125c
The Kernel has started...
Free memory starts at: 0xc0299000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/ram'
PALO initrd 51c000-5f0800
FP CCR was 0x0, will be set to 0xc0
model   00003110 00000481 00000000 00000000 78294d38 ffffffff 00000004 0000000a
0000000a
vers    00000013
CPUID vers 0 rev 0
CPU(s): 1 x PA7100 at 33.333500 MHz
Searching for devices in PDC firmware...  an older box...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0, 0x77, 0x0, 0x0
2. Scorpio Jr. Core BA (11) at 0xf082f000, versions 0xb, 0x0, 0x70, 0x0, 0x0
3. Scorpio Jr. Core SCSI (10) at 0xf0825000, versions 0xb, 0x0, 0x71, 0x0, 0x0
4. Scorpio Jr. Core LAN (802.3) (10) at 0xf0826000, versions 0xb, 0x0, 0x72, 0x0, 0x0
5. Scorpio Jr. Core HIL (10) at 0xf0821000, versions 0xb, 0x0, 0x73, 0x0, 0x0
6. Scorpio Jr. Core RS-232 (10) at 0xf0823000, versions 0xb, 0x0, 0x75, 0x0, 0x0
7. Scorpio Jr. Core RS-232 (10) at 0xf0822000, versions 0xb, 0x0, 0x75, 0x0, 0x0
8. Scorpio Jr. Core Centronics (10) at 0xf0824000, versions 0xb, 0x0, 0x74, 0x0, 0x0
9. Scorpio Jr. Audio (10) at 0xf1000000, versions 0xb, 0x0, 0x7b, 0x0, 0x0
10. Scorpio Jr.(715/33) (0) at 0xfffbe000, versions 0x311, 0x0, 0x4, 0x0, 0x81
11. Scorpio Jr. (1) at 0xfffbf000, versions 0x1b, 0x0, 0x9, 0x0, 0x0
That's a total of 11 devices.
Linux version 2.3.99-pre1 (root@Ullis_PC) (gcc version 2.9-hppa-991112) #1 Mon Apr 10 21:23:26 MEST 2000
init_bootmem 665 12288
init_bootmem complete
initrd: c051c000-c05f0800
pagetable_init
miscoloured (c0218cf4)
miscoloured (c0218d0c)
On node 0 totalpages: 12288
zone(0): 6144 pages.
zone(1): 6144 pages.
zone(2): 0 pages.
trap_init
iodc_con_init
Calibrating delay loop... 25.55 BogoMIPS
Memory: 43700k available
kmem_test() - start
kmem_free: Bad front redzone (objp=c2ffe004, name=test-cachep)
kmem_free: Bad rear redzone (objp=c2ffe004, name=test-cachep)
kmem_test() - finished
c2ff0000 c2ff8000 c2fee000 c2ffc000
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
request_irq(259, c01b9028, 0x0, asp, c2fe9080)
Lasi IRQ 259 EIM 0xfffe0003
lasi_alloc_irq(0xc028d2f8): No known LASI owns device at 0xf0826000
IRQ not found for lasi lan at 0xf0826000
Warning : device (10, 0xb, 0x0, 0x72, 0x0) NOT claimed by Lasi i82596(???) LAN 700 or similiar (old)
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 4096)
Starting kswapd v1.6
Serial driver version 4.92 (2000-1-27) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
pckbd_leds 00
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 850 blocks [1 disk] into ram disk... done.
kernel BUG at block_dev.c:426!
kernel BUG at block_dev.c:426!
VFS: Mounted root (ext2 filesystem).
tty_open
not again
Warning: unable to open an initial console.
do_execve
reading c013a0d8 c2fe07c8 c2fe0588 128
returned 128
02100108 05124000 00000000 00000000
00000000 00000000 000039c3 00000080
000000b4 00045535 40006d38 00000138
00000004 000001c8 00000013 000004fc
00000000 000004fc 000001e8 000004c0
00000003 000006e4 00000000 000006e4
00000000 000006e4 00000000 000006e4
00000000 00045000 00000535 4702100b
trying c0163a70
trying c0163488
load_som_binary
It seems to be a valid SOM executable
reading c013a0d8 c2fe0848 c2fcf260 180
returned 180
10000004 00000028 0003e044 00001000
00000000 00006000 40001000 0003f000
0000ef10 000039c0 00000000 00000000
8000000b 00000004 00000000 80000001
00000020 39323435 332d3037 42000000
31312e30 31000000 00000000 386001ae
00000000 80000001 00000020 39323435
332d3037 42000000 31312e30 34000000
bprm->p: 2001ffc8
stack_base 20000000 b1c71000
stack_base 20001000 b1c71000
stack_base 20002000 b1c71000
stack_base 20003000 b1c71000
stack_base 20004000 b1c71000
stack_base 20005000 b1c71000
stack_base 20006000 b1c71000
stack_base 20007000 b1c71000
stack_base 20008000 b1c71000
stack_base 20009000 b1c71000
stack_base 2000a000 b1c71000
stack_base 2000b000 b1c71000
stack_base 2000c000 b1c71000
stack_base 2000d000 b1c71000
stack_base 2000e000 b1c71000
stack_base 2000f000 b1c71000
stack_base 20010000 b1c71000
stack_base 20011000 b1c71000
stack_base 20012000 b1c71000
stack_base 20013000 b1c71000
stack_base 20014000 b1c71000
stack_base 20015000 b1c71000
stack_base 20016000 b1c71000
stack_base 20017000 b1c71000
stack_base 20018000 b1c71000
stack_base 20019000 b1c71000
stack_base 2001a000 b1c71000
stack_base 2001b000 b1c71000
stack_base 2001c000 b1c71000
stack_base 2001d000 b1c71000
stack_base 2001e000 b1c71000
stack_base 2001f000 c2d1f000
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
(start_brk) 40016000
(end_code) 00040000
(start_code) 00001000
(end_data) 40007000
(start_stack) 20020028
(brk) 40016000
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
current = c2fe0000, mm = c2eb9040, mmap_sem = c2eb905c
Kernel panic: Attempted to kill init!

--0-760313750-955440741=:27233--


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From: Philipp Rumpf <prumpf@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ASP patchlet
Date: Tue, 11 Apr 2000 02:23:54 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:7191

> With this patch I get some noises from the core LAN in my old ASP 715.
> It dont seem to get anny interrupts yes though, any comments?

I guess all the 715/old LAN chip needs is a word swap in MPU_PORT.  At
least I don't remember any additional changes that effectively did
anything and I got mine to work.

(the MAC address stuff should be fairly obvious, I don't see any clean
solution for that though).

	Philipp Rumpf


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From: Paul Bame <bame@endor.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] building a glibc-based tool chain
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= > So, crtbegin/crtend are related to constructors and destructors for C++.  I

I've been editing them out of the spec file by hand, but I suspect that
configure --disable-shared and setting the gcc configure languages list
to dis-include C++ might work too.  (If the lang list only had C in it,
the build might be faster too)

Another thing which is handy is to 'cd gcc; ln -s ../binutils .'
After this, the configure/make/make-install inside the gcc directory
properly handles binutils, so you don't have to do it separately and
it solves some of the installation problems I had before.

The linker problem is always where I end up stuck.  I tried mangling
the vmlinux.lds to link my hello world and that didn't work either,
but I'm NO linker expert.  FYI I added an assert() (it's in CVS) which
catches the linker segfault (binutils/bfd/elf32something) if anyone
wants to become a linker expert and figure it out :-)

	-P


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] Astro and 100BT still not working
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Hi all,
I haven't been able to figure out why the 100BT isn't able
to read the Tx Descriptor and send a setup frame on the C3000.
I'm giving up on this for a bit. I need someone else too look at
this and bounce ideas off of me.

The remainder of this e-mail is a summary of what I know so far
and where to find the data I've.

Thomas has the tulip driver working on the A180's built-in tulip.
But A180 has a completely different processor and I/O subsystem.
And as noted before David Miller has the same driver (pre3)
working on Sparc64 (also 64-byte cacheline).

I've ruled out 64-byte cacheline size (in the configuration space
register) is the problem though it seems tulip driver violates
some of the rules in the doc regarding CAL and WIE bits in CSR0.

I have more PCI bus traces of HP-UX and parisc-linux talking to
the tulip chip on:
	ftp://puffin.external.hp.com/pub/parisc/debug

I've added comments to most of the register accesses since
I don't know tulip very well.

Filename         Comment
--------         -------------------------------------
cogent1.txt      parisc-linux boot. Using "Cogent" tulip card.
                 Trigger when card issues mem_read of 0xfffffffc.
cogent1_cons.txt matching c3k console output

hp100bt1.txt     parisc-linux boot. using HP 100BT card for V-class.
hp100bt1_cons.txt Matching c3k console output.

hp100bt2.txt     HP-UX 10.20 (9912) boot. trigger on first write to CSR4.
hp100bt3.txt     HP-UX 10.20 (9912) boot. trigger on second write to CSR4.
                 (Shows card reading descriptors and updating status.)
hp100bt4.txt     parisc-linux with some minor kernel changes.

The most recent PCI trace is interesting because it suggests something
is wrong with the DMA mapping. One of the changes was for "start" (first
IOVP allocated) to be pdir[0x10] (IOVP=0x10000) instead of pdir[0].
And the card read in zero's instead of the descriptor data!
(see the end of the trace)

Some possible theories:
1) it's not coherent (perhaps LCI didn't work right),
2) the code isn't writing the correct entry in the I/O pdir,
3) the DMA address (IOVA) isn't assembled correctly.
4) some Astro/Elroy HW bug. (using Astro 2.1 and Elroy 2.1)
5) some "bug" in the HP add-on 100BT boards (eg CSR15 and general purpose pins)

I don't think it's (2) or (3) because I've reviewed the results
of console output. I can't determine if LCI is "working".
Philip helped correct problems in that area last Thursday
so it should be ok too. Console output has the full I/O Pdir
entry dumped (in little endian format - MSB is last byte)
if someone could/wants to verify this.

Regarding HW bugs, X4107 (fixed in Elroy 2.2) is a nasty ordering bug.
I don't think we are hitting this since we don't have DMA going yet.
I haven't reviewed Astro Errata yet but will tomorrow.

I didn't think the GEP could cause this kind of problem but maybe
something is a problem. Perhaps I could try the same card in an A180...

thanks,
grant


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Subject: Re: [parisc-linux] Astro and 100BT still not working
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Grant Grundler wrote:
> Some possible theories:
> 1) it's not coherent (perhaps LCI didn't work right),

First off, I noticed (again) that the I/O MMU (aka IIOC)
isn't documented. Since it wasn't part of "Astro" documentation
it didn't get put through "the process".  Astro uses I/O MMU logic
original designed for Ike and thus didn't repeat stuff written
in the Ike Documentation. I think the public files even say
that someplace.

Anyway, Here's something interesting out of the "Ike" documentation:

    7.6 Virtual Index support

    In PCX-W based systems, DMA is coherent only if a virtual index is
    supplied with the physical address. So, most DMA addresses will have
    to be translated by the TLB. When the translation is done, the virtual
    index stored in the VINDEX field of the I/O PDIR entry is supplied by
    the TLB. In some cases, however, this may lead to performance problems.
    So, a Direct Virtual Index (DVI) mode is also supported. The PSC in
    Elroy is responsible for recognizing a DVI address and separating the
    virtual index from the address. See the PSC chapter. In either mode,
    8 bits of virtual index are supported.

    For I/O PDIR fetches themselves, IKE assumes that the I/O PDIR is
    equivalently mapped. I.e., it assumes that the physical address =
    virtual address and so it supplies bits 19:12 of the physical address
    as the virtual index. To ensure coherency of I/O PDIR fetches, the
    I/O PDIR must be equivalently mapped.


The second paragraph worries me. It suggests parisc-linux has to flush
the cachelines which contain I/O Pdir data every time such data is
changed since it's not equivalently mapped.  Since only bits 31:28
are different for kernel space (0xc....), does this still apply?

How can I test this?
(ie What's the linux function/macro to flush a cacheline?)

FWIW, this is a safe assumption for HP-UX.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Hey Everyone,

Well, I've gone and researched the 735/125 we have again.  Everytime I try
to install HPUX on it, the HD is reporting 0 disk space.  I low-level
format it on my x86 machine, and it starts reporting fine.  I switch the
HD back to the 735 and it reports 0 capacity again, so HPUX won't allow me
to install.  But the real problem is not being able to LAN boot.

bootp won't work with our 735/125.  Search/Autoselect doesn't see
lan.x.x.x as a bootable device.  Is that a problem?  Shouldn't LAN be one
of the boot paths?  I have lan.x.x.x with appropriate values set as the
primary boot path, it requests bootp from one of the j282 machines which
serves as the bootpd for all the netstations in our lab.  If I allow it to
boot to LAN with running "BOOT lan.x.x.x", no packets are being sent, but
it thinks they are. I will double check the cables, but I doubt that is
the problem.  The machine has the Intel slider card, with the HP
transciever on the back.  Even if the cables were bad, wouldn't the
firmware see the lan.x.x.x as a bootable path?  It should be "P0" since it
is the primary path, correct?
Would the slider card be bad?  Everything lights up fine.
Is this a known problem?
Any ideas are welcomed!

Thanks!
mike


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From: davisg@Celestica.com
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Subject: Re: [parisc-linux] tulip on parisc-linux
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My ignorant $0.02.

Notice that in your original two PCI traces the fetch of the transmit
descriptors appears to be correct.
At least the values shown in the bus trace make sense. Maybe the length of the
fetch is a problem.
But things don't appear to be too bad since the data in the TDs looks good at
this point.

I'm not convinced that the problem is due to Astro I/O TLB problems because
you're showing good
data in the fetch of the TDs. Also, RD/TD fetches use simple PCI Mem Read/Write
cycles,
not Read/Write Line. So this appears to be correct (at least if the traces are
correctley indicating
the types of PCI cycles).

My money is on a timing problem in the CSR register writes. Read on...

Grant Grundler wrote:

> Couple of questions:
> 1) Anyone know if drivers/net/tulip/* (pre3 or later) work on
>    an architecture with 64-byte cachelines?
>    (21143 doc says it supports 8/16/32 byte cachlines)
>

Actually, the units are "longwords", i.e. 32, 64; 128 Byte
cache line sizes.

> 2) The tulip fetches way more data than it needs for the setup frame
>    TX descriptor. (See lines -215 to -4 of the cogent PCI trace).
>    Anyone know why?
>    (I can arrange a free 712/80 for who ever can explain that to me)

No, but can I guess?

CAUTION: too much drivel ahead. Skip to the end though - cause I think
I have a potential solution...

My guess is that you haven't (actually the tulip driver hasn't) set the TER bit
in TDES1 of the last
TD in the ring (which points back to 0x200). Under the assumption that the DMA
engine in the 21143
performs prefetch of descriptors (although admittedly 52 +/- entries is a bit
much particularly
in consideration of the fact that only the first entry has the OWN bit set and
all entries thereafter
are owned by the host) and PBL in CSR0 is cleared, i.e. the free space in the
xmit FIFO prior to
the 21143 issuing a bus request sets the memory read burst lenght (but what does
the xmit FIFO
have to do with prefetch of xmit buffer descriptors -  who knows - I'm merely
guessing). This is
kinda based on reading between the lines of the 21143 HRM since there really
doesn't appear
to be any rational explanation based on the device documentation.

Hmmm, I think I'm liking the PBL theory - assuming that the 21143 PCI master
interface prefetch
engine isn't tightly integrated with the DMA descritor prefetch logic, this long
prefetch of descriptors
may be merely an artifact of the 21143 PCI master interface design. Now I'm
really full-of-****.

How deep is the Xmit FIFO anyway? I can't find a number in the HRM. It has to be
at least 1500
bytes (for store and forward). If the PBL is in fact set based on the Xmit FIFO
threshold setting
rather than the amount of free space as implied in the HRM, then the 52 +/- TDs
fetched is
kinda in the vicinity of half-full: 1500/2 -> 750 Bytes. Which is in the range
of the 836 (209 longwords * 4
bytes/longword) Bytes fetched by the 21143.


Try changing the PBL to something other than 0 and observe the results (length
of TD prefetch)...


Another thought: maybe the Configuration Latency Timer setting is related to
what
you're seeing? Oooh, I just imported your trace into a spread sheet and come up
with a 21143 DMA memory read duration of about 271 PCI clock ticks assuming
30ns clock period. Sounds suspicously close to a max latency of 255 ticks give
or
take assuming bus grant was revoked?


HERE BE DRAGONS (or at least I hope so I can get  a free 712/80):
=========================================================

Wait a minute... why are you writing to CSR5 immediately after setting CSR6
start/stop
xmit.  The HRM says the last thing you should do when setting up is to write to
CSR6.
The device gets pretty picky about what you can get away with thereafter. Maybe
the fact that the tulip driver is writing to CSR5 immediately after setting the
xmit start/stop
bit is causing confusion in device's state. Since the Status Register bits are
Read/Clear,
shouldn't they be cleaned up prior to starting the transmit and/or receive
engines?
Seems like trouble may be possible otherwise, e.g. clearing an event in
progress?

I'm looking at the tulip driver source contained in the 2.3.28 release and I'm
having
trouble understanding how the chip is assured that it can complete what it's
doing
before getting clobbered by some of the later CSR writes. There is no pause
after
starting the load of the setup frame prior to writing to CSR5, CSR7, CSR6 and
then
starting the receive engine in quick succession. Shouldn't there at least be a
delay (let alone status read) to be sure that the xmit engine has started prior
to
clobbering that status register by blindly Writing (Clearing) bits. See the last
dozen
lines of proc tulip_open for the code sequence in question. Shouldn't there be
at least some amount of delays and/or status checking between starting the
Xmit/Rcv
engines and subsequent actions?

Now that I've completely embarrassed myself, why not try simply inserting a
delay immediately after you start the transmit engine for the setup frame to
see if there is indeed some problem in writing to CSR5 so quickly after
launching
the setup frame. Otherwise, everthing else in the traces appear to be normal
prior
to the attempted fetch of the transmit buffer descriptor for the setup frame. Of
course,
the bogus DMA cycles thereafter seem to imply something broke (stating the
obvious).



Although, I haven't given you a concrete  answer, do I still qualify for the
free 712/80 if I'm
on the mark?


Way too much time on this... Maybe I should resolve to be a silent bystander!


Regards,
George

P.S. I have another theory - have you performed a hard reset of the device to
assure
that no residual state lingers from the IODC's use of same during boot. Assuming
you
booted via this devce.





Grant Grundler <grundler@cup.hp.com> on 04/11/2000 12:26:18 AM

To:   parisc-linux@thepuffingroup.com
cc:    (bcc: George G Davis/CCH/Celestica)

Subject:  [parisc-linux] tulip on parisc-linux



[ FYI - I posted this to linux-kernel mailing list earlier today
  and David Miller already replied saying this version of tulip
  driver works on Sparc64 (which has 64-byte cachelines) ]

Hi all,
I'm trying to bring-up tulip driver on an HP C3000 workstation.
I started out using a cogent (adaptec) 21143 PCI board.  I've
collected a PCI bus trace (cogent1.txt) and corresponding console
output (cogent1_cons.txt).  Both can be found on
     ftp://puffin.external.hp.com/pub/parisc/debug.

I then tried a HP 21143 PCI card and got similar results.
Output is in the same place under "hp100bt1*.txt".

The tulip driver in the parisc source tree "works" (NFS root)
for Thomas Bogendoerfer on his A180 (PA1.1, 32-byte cacheline) using
the "built-in" DEC 21143.  IIRC, Thomas pulled the current source
in the parisc-linux tree from 2.3.99-pre3.

Couple of questions:
1) Anyone know if drivers/net/tulip/* (pre3 or later) work on
   an architecture with 64-byte cachelines?
   (21143 doc says it supports 8/16/32 byte cachlines)

2) The tulip fetches way more data than it needs for the setup frame
   TX descriptor. (See lines -215 to -4 of the cogent PCI trace).
   Anyone know why?
   (I can arrange a free 712/80 for who ever can explain that to me)

There is also an issue with the tulip trying to mem_read from 0xfffffffc.
but I think that's a "side effect" of #2 above.


FWIW, my goal was to debug "Dynamic DMA mapping" support for "Astro"
based parisc platforms (eg B1000/C3000/J5000). Interested parties can
look at the code in:
http://puffin.external.hp.com/cgi-bin/cvsview/linux-2.3/arch/parisc/kernel/sba_iommu.c


thanks,
grant

Grant Grundler
grundler@removethis.cup.hp.com

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On Tue, Apr 11, 2000 at 11:08:16PM -0700, Grant Grundler wrote:
> 
>     For I/O PDIR fetches themselves, IKE assumes that the I/O PDIR is
>     equivalently mapped. I.e., it assumes that the physical address =
>     virtual address and so it supplies bits 19:12 of the physical address
>     as the virtual index. To ensure coherency of I/O PDIR fetches, the
>     I/O PDIR must be equivalently mapped.
> 
> 
> The second paragraph worries me. It suggests parisc-linux has to flush
> the cachelines which contain I/O Pdir data every time such data is
> changed since it's not equivalently mapped.  Since only bits 31:28
> are different for kernel space (0xc....), does this still apply?
> 
No.  Only bits 19:12 of the virtual address need to match bits 19:12 of the 
physical address.  You may need to use space=0 for your virtual address 
because of the CPU's space hashing feature.


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Subject: [hppa-linux] kernel stuff
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Two questions:
1) Why is there not a complete kernel checked into CVS?  It's going to
be a major nightmare if we don't control the entire tree and when we
merge forward to new Linus versions, etc.
[shaver@loonie parisc-linux]$ cvs -d
:pserver:shaver@sod.res.cmu.edu:/home/cvs/hppa co linux
cvs server: Updating linux
cvs server: Updating linux/arch
cvs server: Updating linux/arch/parisc
cvs server: Updating linux/arch/parisc/hp
U linux/arch/parisc/hp/machines.h
cvs server: Updating linux/arch/parisc/hp/boot
U linux/arch/parisc/hp/boot/Makefile
U linux/arch/parisc/hp/boot/mkipl.c
U linux/arch/parisc/hp/boot/mklifhdr.c
[shaver@loonie parisc-linux]$

2) What version should I unpack under the bits that _are_ in the tree?

Mike

-- 
291958.32 246858.49


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On Wed, Apr 12, 2000 at 03:11:27AM -0400, Mike Brancato wrote:
> bootp won't work with our 735/125.  Search/Autoselect doesn't see
> lan.x.x.x as a bootable device.

are you sure that machine is using bootp rather than rbootd ?

> transciever on the back.  Even if the cables were bad, wouldn't the
> firmware see the lan.x.x.x as a bootable path?

715/old firmware at least doesn't show lan as bootable path unless it
detects an rbootd server.

	Philipp Rumpf


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George,
Thanks for the long reply. I badly needed new ideas on what the
problem might be and you provided several.

davisg@Celestica.com wrote:
...
> But things don't appear to be too bad since the data in the TDs looks good at
> this point.

In hp100bt4.txt PCI trace, the TX descriptor data is not good.
See comments at the top of that file.


> My money is on a timing problem in the CSR register writes. Read on...

Me too. But I don't know what since it "works" on other boxes.

> Grant Grundler wrote:
> > Couple of questions:
> > 1) Anyone know if drivers/net/tulip/* (pre3 or later) work on
> >    an architecture with 64-byte cachelines?
> >    (21143 doc says it supports 8/16/32 byte cachlines)
> >
> 
> Actually, the units are "longwords", i.e. 32, 64; 128 Byte
> cache line sizes.

Yes. Thank you. I did infact mis-interpret that for both the PBL
and CAL fields of CSR0.


> > 2) The tulip fetches way more data than it needs for the setup frame
> >    TX descriptor. (See lines -215 to -4 of the cogent PCI trace).
> >    Anyone know why?
> >    (I can arrange a free 712/80 for who ever can explain that to me)
> 
> No, but can I guess?

Certainly. That's all I've been doing. :^)


> My guess is that you haven't (actually the tulip driver hasn't) set the
> TER bit in TDES1 of the last TD in the ring (which points back to 0x200).


"4.3.6.1 Frame Processing" discusses the TER bit.
I'm going try that out after trying to set PBL.

The TDES0<31> (ownership) bit is discussed in the next section.
But lack of ownership doesn't seem to stop the 21143 from *reading*
the entire list of TX descriptors.

> Under the assumption that the DMA engine in the 21143 performs prefetch
> of descriptors (although admittedly 52 +/- entries is a bit much.

It seems to only prefetch RX descriptors *before* a frame starts to come in.
hp100bt3.txt PCI trace seems to confirm that's how it behaves under HPUX.

> Particularly in consideration of the fact that only the first entry
> has the OWN bit set and all entries thereafter are owned by the host)

Under HP-UX, the DMA engine only reads the first TX descriptor, then
the next TX descriptor, and then stops. The host writes CSR1 once
the second Tx descriptor is initialized for outbound data. The card then
re-reads the second TX descriptor and corresponding data buffer.

> and PBL in CSR0 is cleared, i.e. the free space in the xmit FIFO prior
...
> Hmmm, I think I'm liking the PBL theory - assuming that the 21143 PCI master
> interface prefetch engine isn't tightly integrated with the DMA descritor
> prefetch logic, this long prefetch of descriptors may be merely an
> artifact of the 21143 PCI master interface design. Now I'm really
> full-of-****.

I think setting PBL is a good idea. HP-UX sets it to 32-bytes...but
HP-UX also "lies" about the cacheline size. See hp100bt3.txt.

> How deep is the Xmit FIFO anyway?

PBL description (page 3-28) says:
	"If reset, the 21143 burst is limited only by the amount of
	 data stored in the receive FIFO (at least 16 longwords), or
	 by the amount of free space in the transmit FIFO (at least 16
	 longwords)"

This unfortunately doesn't clearly put an upper bound on the FIFO size.

BTW, "4.3.5.2 Frame Processing" talks about how the RX FIFO is used
and mentions prefetch of descriptors.


...
> Try changing the PBL to something other than 0 and observe the
> results (length of TD prefetch)...

Will do.


> Another thought: maybe the Configuration Latency Timer setting is related
> to what you're seeing? Oooh, I just imported your trace into a spread
> sheet and come up with a 21143 DMA memory read duration of about 271 PCI
> clock ticks assuming 30ns clock period. Sounds suspicously close to a
> max latency of 255 ticks give or take assuming bus grant was revoked?

Could be what's limiting the burst since neither PBL, TER, or anything else.
Note that cogent1.txt PCI traces and hp100bt?.txt traces sometimes
have slightly longer/short number of dwords read. This could be explained
by slight variations in host latency and thus the latency timer expires
after a different number of transactions.


> HERE BE DRAGONS (or at least I hope so I can get  a free 712/80):
> =========================================================
> Wait a minute... why are you writing to CSR5 immediately after setting
> CSR6 start/stop xmit?  The HRM says the last thing you should do when
> setting up is to write to CSR6.

Agreed. Writing CSR5 (to clear interrupt status bits) should be done
*before* starting the SIA TX engine (write to CSR6). I have no clue
why it's done this way. Certainly leaves us open to race conditions...

only in the cogent1.txt trace does one see that CSR7 is written *after*
the first TX descriptor has been read. This actually enables the interrupts.
That might be why we don't see any interrupts (even for error conditions).

hp100bt3.txt: HP-UX writes CSR7 immediately after starting the
   RX and TX engines.  This probably isn't a good thing either.
   But note that CSR5 is written *before* starting RX/TX.

> The device gets pretty picky about what you can get away with thereafter.
> Maybe the fact that the tulip driver is writing to CSR5 immediately
> after setting the xmit start/stop bit is causing confusion in device's
> state. Since the Status Register bits are Read/Clear,
> shouldn't they be cleaned up prior to starting the transmit and/or receive
> engines?

I think so too. We should at least see the interrupts for error conditions.

> Seems like trouble may be possible otherwise, e.g. clearing an event in
> progress?

yes.

> I'm looking at the tulip driver source contained in the 2.3.28 release

The parisc-linux source is from 2.3.99-pre3 code and is quite different.
You can view parisc-linux code either through the web links from
	http://puffin.external.hp.com/bonsai/rview.cgi
 OR
	http://puffin.external.hp.com/cgi-bin/cvsview/linux-2.3/

> and I'm having trouble understanding how the chip is assured that it
> can complete what it's doing before getting clobbered by some of the
> later CSR writes. There is no pause after starting the load of the
> setup frame prior to writing to CSR5, CSR7, CSR6 and then
> starting the receive engine in quick succession.

Luck. It happens to work most of the time on most platforms.
That's all.

...
> Now that I've completely embarrassed myself, why not try simply inserting a
> delay immediately after you start the transmit engine for the setup frame to
> see if there is indeed some problem in writing to CSR5 so quickly after
> launching the setup frame.

I'll add something similar to my TODO list:
o move the CSR5 and CSR7 writes to precede the CSR6 write which starts
  the TX/RX engine.

> Although, I haven't given you a concrete  answer, do I still qualify for the
> free 712/80 if I'm on the mark?

Certainly. I'm open for shotgun approach too....besides anyone who wants
a 712/80 that badly should get one (given current availability).


> Way too much time on this... Maybe I should resolve to be a silent bystander!

naah....that's boring. Big thanks for you help!

> P.S. I have another theory - have you performed a hard reset of the
> device to assure that no residual state lingers from the IODC's use
> of same during boot. Assuming you booted via this devce.

I didn't boot from this device.  But a SW reset is performed which should
reset all CSRs and SIA state but not Configuration Space registers.

George, again big thanks for the ideas...I'm reading "new" sections
of the HRM (HW Ref Manual I've assumed) now because of this.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel build with CONFIG_IODC_CONSOLE fails
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--- Ulrich Strelow <ulrich_strelow@yahoo.com> wrote:
> Hi all,
> 
> after Gyula's fix I was able to to compile the
> kernel
> with CONFIG_IODC_CONSOLE. However booting this
> kernel
> results in the (in)famous message "Kernel panic:
> Attempted to kill init!".
> 
> In the beginning of the boot log there is a
> "iodc_con_init" message, but the message "Console:
> switching to IODC console" is missing. 

After looking at the source code of iodccon.c (I
should have done this before !) I have to rewrite my
question:

Is there any reason why the call of take_over_console
in iodc_con_init is commented out ?

Ulrich

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Xref: news.gmane.org gmane.linux.ports.parisc:7202

On Sun, Apr 09, 2000 at 11:42:33PM -0400, Sam Creasey wrote:
> [why do we have page colouring?]

Originally, we thought it was necessary to get Linux working correctly
on the PA-RISC architecture.  At the puffinfest, we decided that was
incorrect.  [prumpf & jsm did most of the talking; pb & I listened in.]
The existing calls should be sufficient.  So go ahead and rip them out
and commit that code.  Or I can do it if you don't want to.

> # uname -a
> Linux 10.0.0.5 2.3.99-pre1 #41 Sun Apr 9 21:07:39 EDT 2000 parisc unknown

_sweet_.


From - Thu Nov 08 21:12:25 2018
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From: willy@thepuffingroup.com
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] CVS info
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Some people see their commits turning up attributed to `CVSD <cvs@pehc>'.
This is because their CVS/Root file contains the anonymous check-out string;
:pserver:puffin.external.hp.com:/home/cvs/parisc.
You should do the following (assuming you're running bash):

export CVSROOT=:ext:YOUR_USER_NAME@puffin.external.hp.com:/home/cvs/parisc
for i in `find linux-2.3 -name Root`; do echo $CVSROOT >$i; done

and your future commit messages will come from you.  I'd send this message
to the people who're doing it directly, but I have no idea who you are :-)


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From: Paul Bame <bame@endor.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] building a glibc-based tool chain
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Ok, using my prior instructions you'll get a 'glibc' containing
x86 object files!  crt1.o is one of those, and is probably why the
linker segfaults.

Although this is still naive, a better glibc config command is:

.../configure  \
    --prefix=/opt/palinux/lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112  \
    --disable-nls  \
    --disable-sanity-checks  \
    --disable-shared  \
    --host=hppa1.1-linux  \
    --target=hppa1.1-linux  \
    --build=i386-linux  \
    --with-headers=/opt/puffin/include  \
    --without-nls  \
    --disable-profile

Currently this is dying in the glibc build but that will probably get
fixed tomorrow.

	-P


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Astro and 100BT still not working
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Grant Grundler wrote:
> Hi all,
> I haven't been able to figure out why the 100BT isn't able
> to read the Tx Descriptor and send a setup frame on the C3000.


I did find (and fix) several bugs in the SBA code regarding
translations from res_map[] -> pdir_base[] -> iova. But the
add-on tulip (cogent or HP) still wasn't working.  I think
after I changed the order of the CSR5/6/7 register writes,
I saw this output:

    eth0: No link beat on the MII interface, status 7809.

I am convinced Tulip initialization of CSR5/6/7 isn't right.
Writing CSR6 (enable Tx/Rx) should be the last thing.
But since vmlinux with my tulip_core.c "hung" after the same output
it's not clear if my changes "fix" anything. I'm not sure
the "No link beat" was due to my changes.
Anyone want my patch?
Or should I just commit my tulip_core.c?


Anyway, I removed the add-on card to try built-in tulip again.
With original Tulip code it got to:

    IP-Config: Got BOOTP answer from 15.8.80.76, my address is 15.8.80.77

I don't know why I stopped getting output.
I've TOC'd the box and will look at TOC output tomorrow.
(Don't want to spoil my day :^)
Could also be a problem with my bootp server or nfs root file system.

Full debug output is appended (with my tulip_core.c changes).
Code changes (except tulip_core.c) are committed if someone
else wants to play more with it.
SCSI is next on my list.

cheers,
grant

ps. yes - I'm working on getting George a 712/80...sounds
    like he needs one anyway. :^)

Grant Grundler
Unix Development Lab
+1.408.447.7253



Main Menu: Enter command > bo lan
Interact with IPL (Y, N, Q)?> n

Booting... 
Network Station Address 001083-360089

System IP Address 15.8.80.77
Server IP Address 15.8.80.76

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@rock Thu Apr 13 16:26:33 PDT 2000
0/vmlinux 1961991 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.80.76'
0/ramdisk 614400 bytes @ 0x1e5807
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 0010174c first 00100000 n 4
Segment 0 load 00100000 size 1103012 mediaptr 0x1000
Segment 1 load 0020e000 size 95400 mediaptr 0x10f000
Segment 2 load 00228000 size 55796 mediaptr 0x127000
Segment 3 load 00238000 size 8192 mediaptr 0x135000
branching to kernel entry point 0x0010174c
The Kernel has started...
Free memory starts at: 0xc02a8000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.80.76'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00005bb0 00000481 00000000 00000002 77cd9463 100000f0 00000008 000000b2 000000b2
vers    00000200
cpuid   00000224
CPUID vers 17 rev 4
CPU(s): 1 x PA8500 at 400.000000 MHz
Searching for devices in PDC firmware... a newer box...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
2. Elroy PCI Bridge (13) at 0xfed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
3. Elroy PCI Bridge (13) at 0xfed32000, versions 0x782, 0x0, 0xa, 0x0, 0x0
4. Elroy PCI Bridge (13) at 0xfed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
5. Elroy PCI Bridge (13) at 0xfed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. AllegroHigh W  (0) at 0xfffa0000, versions 0x5bb, 0x0, 0x4, 0x0, 0x81
7. AllegroHigh Memory (1) at 0xfed10200, versions 0x86, 0x0, 0x9, 0x0, 0x0
That's a total of 7 devices.
Linux version 2.3.99-pre1 (grundler@rock) (gcc version 2.9-hppa-991112) #79 Thu Apr 13 16:25:57 PDT 2000
init_bootmem 680 32768
init_bootmem complete
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
trap_init
Calibrating delay loop... 758.58 BogoMIPS
Memory: 124884k available
kmem_test() - start
kmem_free: Bad front redzone (objp=c7ffe004, name=test-cachep)
kmem_free: Bad rear redzone (objp=c7ffe004, name=test-cachep)
kmem_test() - finished
c7ff0000 c7ff8000 c7fee000 c7ffc000
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
lba version TR2.1 (0x2) found at 0xfed30000
Scanning bus 00
Found 00:60 [1011/0019] 000200 00
Found 00:68 [11d4/1889] 000401 00
Found 00:70 [100b/0002] 000101 00
Found 00:71 [100b/000e] 000680 00
Found 00:72 [100b/0012] 000c03 00
Found 00:78 [1000/000b] 000100 00
Found 00:79 [1000/000b] 000100 00
Fixups for bus 00
lba_fixup_bus(0xc7ffd660) bus 0 sysdata 0xc7feb0e0
request_irq(258, c0123e94, 0x0, iosapic, c7fbb060)
request_irq(259, c0123e94, 0x0, iosapic, c7fbb080)
request_irq(260, c0123e94, 0x0, iosapic, c7fbb020)
request_irq(261, c0123e94, 0x0, iosapic, c7fbb020)
request_irq(262, c0123e94, 0x0, iosapic, c7fbb020)
request_irq(263, c0123e94, 0x0, iosapic, c7fbb040)
request_irq(264, c0123e94, 0x0, iosapic, c7fbb040)
Bus scan for 00 returning with max=00
lba version TR2.1 (0x2) found at 0xfed32000
Scanning bus 01
Found 01:28 [1011/0019] 000200 00
Found 01:30 [1000/000f] 000100 00
Fixups for bus 01
lba_fixup_bus(0xc7ffd700) bus 1 sysdata 0xc7feb1a0
request_irq(265, c0123e94, 0x0, iosapic, c7fbb280)
request_irq(266, c0123e94, 0x0, iosapic, c7fbb260)
Bus scan for 01 returning with max=01
lba version TR2.1 (0x2) found at 0xfed38000
Scanning bus 02
Found 02:08 [12ae/0001] 000200 00
Fixups for bus 02
lba_fixup_bus(0xc7ffd7a0) bus 2 sysdata 0xc7feb260
request_irq(267, c0123e94, 0x0, iosapic, c7fbb4c0)
Bus scan for 02 returning with max=02
lba version TR2.1 (0x2) found at 0xfed3c000
lba: iosapic_register says not used
Warning : device (13, 0x782, 0x0, 0xa, 0x0) NOT claimed by lba TR2.1
SBA at 0xfed00000
IOS_DIST_BASE   : 000000ff fee00001
IOS_DIST_MASK   : 000000ff ffff0000
IOS_DIST_ROUTE  : 34000000 00000000

IOS_DIRECT_BASE : 000000ff fee00200
IOS_DIRECT_MASK : 000000ff ffff0000
IOS_DIRECT_ROUTE: 00000000 00000000
SBA found Astro 2.1 at 0xfed00000
sba_hw_init() hpa 0xfed00000 ioc_ctl 0x29cf ->sba_ioc_init hpa 0xfed22000 mem 128MBIOV 16MB (24 bits) PDIR size 0x8000 base c7fa8000
sba_ioc_init IOV base 0x1 mask 0xff000000
lba_init_iregs() ibase 0x1 imask 0xfc000000
lba_init_iregs() base_addr fed38000
lba_init_iregs() base_addr fed32000
lba_init_iregs() base_addr fed30000
lba_init_iregs() done
sba_ioc_init done
sba_common_init() res_size 0x200
lba: lba_bios_init
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
Starting kswapd v1.6
Serial driver version 4.92 (2000-1-27) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Linux Tulip driver version 0.9.4.2 (Mar 21, 2000)

tulip 0x00 : 0x00191011 0x02800057 0x02000030 0x0000ff10
tulip 0x10 : 0x00001001 0xf4008000 0x00000000 0x00000000
tulip 0x20 : 0x00000000 0x00000000 0x00000000 0x104f103c
tulip 0x30 : 0xf4040000 0x00000000 0x00000000 0x28140102
pcibios_enable_device: Enabling device 00:0c.0 (0057 -> 0157)
sba_map_single 0xc7f7a000 -> 0x80000 pdir 0xc7fa8400 8000000007f7a07a
eth0: Digital DS21143 Tulip rev 48 at 0x1000, 00:10:83:36:00:89, IRQ 514.
eth0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
tulip: skipping card at 0x12100
request_irq(514, c01b38f4, 0x4000000, eth0, c7fb1000)
sba_map_single 0xc7fb0810 -> 0xa0810 pdir 0xc7fa8500 8000000007fb00b0
sba_map_single 0xc7fb0010 -> 0xc0010 pdir 0xc7fa8600 8000000007fb00b0
sba_map_single 0xc7f77810 -> 0xe0810 pdir 0xc7fa8700 8000000007f77077
sba_map_single 0xc7f77010 -> 0x100010 pdir 0xc7fa8800 8000000007f77077
sba_map_single 0xc7f76810 -> 0x120810 pdir 0xc7fa8900 8000000007f76076
sba_map_single 0xc7f76010 -> 0x140010 pdir 0xc7fa8a00 8000000007f76076
sba_map_single 0xc7f75810 -> 0x160810 pdir 0xc7fa8b00 8000000007f75075
sba_map_single 0xc7f75010 -> 0x180010 pdir 0xc7fa8c00 8000000007f75075
sba_map_single 0xc7f74810 -> 0x1a0810 pdir 0xc7fa8d00 8000000007f74074
sba_map_single 0xc7f74010 -> 0x1c0010 pdir 0xc7fa8e00 8000000007f74074
sba_map_single 0xc7f73810 -> 0x1e0810 pdir 0xc7fa8f00 8000000007f73073
sba_map_single 0xc7f73010 -> 0x200010 pdir 0xc7fa9000 8000000007f73073
sba_map_single 0xc7f72810 -> 0x220810 pdir 0xc7fa9100 8000000007f72072
sba_map_single 0xc7f72010 -> 0x240010 pdir 0xc7fa9200 8000000007f72072
sba_map_single 0xc7f71810 -> 0x260810 pdir 0xc7fa9300 8000000007f71071
sba_map_single 0xc7f71010 -> 0x280010 pdir 0xc7fa9400 8000000007f71071
sba_map_single 0xc7f70810 -> 0x2a0810 pdir 0xc7fa9500 8000000007f70070
sba_map_single 0xc7f70010 -> 0x2c0010 pdir 0xc7fa9600 8000000007f70070
sba_map_single 0xc7f6f810 -> 0x2e0810 pdir 0xc7fa9700 8000000007f6f06f
sba_map_single 0xc7f6f010 -> 0x300010 pdir 0xc7fa9800 8000000007f6f06f
sba_map_single 0xc7f6e810 -> 0x320810 pdir 0xc7fa9900 8000000007f6e06e
sba_map_single 0xc7f6e010 -> 0x340010 pdir 0xc7fa9a00 8000000007f6e06e
sba_map_single 0xc7f6d810 -> 0x360810 pdir 0xc7fa9b00 8000000007f6d06d
sba_map_single 0xc7f6d010 -> 0x380010 pdir 0xc7fa9c00 8000000007f6d06d
sba_map_single 0xc7f6c810 -> 0x3a0810 pdir 0xc7fa9d00 8000000007f6c06c
sba_map_single 0xc7f6c010 -> 0x3c0010 pdir 0xc7fa9e00 8000000007f6c06c
sba_map_single 0xc7f6b810 -> 0x3e0810 pdir 0xc7fa9f00 8000000007f6b06b
sba_map_single 0xc7f6b010 -> 0x400010 pdir 0xc7faa000 8000000007f6b06b
sba_map_single 0xc7f6a810 -> 0x420810 pdir 0xc7faa100 8000000007f6a06a
sba_map_single 0xc7f6a010 -> 0x440010 pdir 0xc7faa200 8000000007f6a06a
sba_map_single 0xc7f69810 -> 0x460810 pdir 0xc7faa300 8000000007f69069
sba_map_single 0xc7f69010 -> 0x480010 pdir 0xc7faa400 8000000007f69069
eth0: tulip_up(), irq==514.
sba_map_single 0xc7fb12bc -> 0x4a02bc pdir 0xc7faa500 8000000007fb10b1
eth0: No media description table, assuming MII transceiver, CSR12 c6.
eth0: Using MII transceiver 1, status 782d.
eth0: Done tulip_open(), CSR0 ffa0c000, CSR5 f0360000 CSR6 b20e2002.
eth0: interrupt  csr5=0xf0670004 new csr5=0xf0660000.
sba_unmap_single iovp 0x4a02bc
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 0 20074000.
eth0: In tulip_rx(), entry 0 00400720.
eth0: In tulip_rx(), entry 1 00400720.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 2 00000080.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
sba_map_single 0xc7fb12bc -> 0x4c02bc pdir 0xc7faa600 8000000007fb10b1
eth0: interrupt  csr5=0xf0670004 new csr5=0xf0660000.
sba_unmap_single iovp 0x4c02bc
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
sba_map_single 0xc7fb12bc -> 0x4e02bc pdir 0xc7faa700 8000000007fb10b1
eth0: interrupt  csr5=0xf0670004 new csr5=0xf0660000.
sba_unmap_single iovp 0x4e02bc
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
Sending BOOTP requests...sba_map_single 0xc7feda02 -> 0x500a02 pdir 0xc7faa800 8000000007fed0ed
eth0: interrupt  csr5=0xf0670004 new csr5=0xf0660000.
sba_unmap_single iovp 0x500a02
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 2 20035a01.
eth0: In tulip_rx(), entry 2 015a0320.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
.<7>eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 3 20074000.
eth0: In tulip_rx(), entry 3 00400720.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 4 20033202.
eth0: In tulip_rx(), entry 4 02320320.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 5 20074000.
eth0: In tulip_rx(), entry 5 00400720.
eth0: In tulip_rx(), entry 6 00400720.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 7 00000080.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 7 20074000.
eth0: In tulip_rx(), entry 7 00400720.
eth0: In tulip_rx(), entry 8 00400720.
eth0: In tulip_rx(), entry 9 00720720.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 10 00000080.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: 21143 negotiation status 000000c6, MII.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 10 20074000.
eth0: In tulip_rx(), entry 10 00400720.
eth0: In tulip_rx(), entry 11 00400720.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: MII status 782d, Link partner report 40a1.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 12 20074000.
eth0: In tulip_rx(), entry 12 00400720.
eth0: In tulip_rx(), entry 13 00400720.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 14 00000080.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 14 20074000.
eth0: In tulip_rx(), entry 14 00400720.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 15 20074000.
eth0: In tulip_rx(), entry 15 00400720.
eth0: In tulip_rx(), entry 16 02320320.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 17 00000080.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 17 20074000.
eth0: In tulip_rx(), entry 17 00400720.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 18 20074000.
eth0: In tulip_rx(), entry 18 00400720.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
eth0: interrupt  csr5=0xf0670040 new csr5=0xf0660000.
 In tulip_rx(), entry 19 00077600.
eth0: In tulip_rx(), entry 19 00760700.
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.
 OK
IP-Config: Got BOOTP answer from 15.8.80.76, my address is 15.8.80.77
sba_map_single 0xc7fb12bc -> 0x5202bc pdir 0xc7faa900 8000000007fb10b1
eth0: interrupt  csr5=0xf0670044 new csr5=0xf0660000.
 In tulip_rx(), entry 20 20074000.
eth0: In tulip_rx(), entry 20 00400720.
sba_unmap_single iovp 0x5202bc
eth0: interrupt  csr5=0xf0660000 new csr5=0xf0660000.
eth0: exiting interrupt, csr5=0xf0660000.


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From: Sam Creasey <sammy@sammy.net>
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Subject: [parisc-linux] cross compiling glibc
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Ok, according to CVS, my tree is now entirely sync'd with the repository
for glibc.

And I just built glibc right "out of the box".

Hopefully this procedure will work for you:


(checkout glibc)
cd glibc
mkdir hppa1.1-linux
cd hppa1.1-linux

../configure --disable-shared --disable-profile --enable-static-nss
--build=i686-linux --host=hppa1.1-linux --disable-sanity-checks

make

(yes, the entire make should actually happen right now -- though
nss/makedb still won't compile without the binutils fix I just checked
in).

make install install_root=/raid/hp/root MAKEINFO=

This runs in install into the root for my 712's NFS mount.
The MAKEINFO= is important, it keeps it from trying to build the manuals,
which doesn't work without the addon.


Hope it goes as smoothly for anyone else.

-- Sam



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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] building a glibc-based tool chain
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Paul Bame <bame@endor.fc.hp.com> writes:

> Ok, using my prior instructions you'll get a 'glibc' containing
> x86 object files!  crt1.o is one of those, and is probably why the
> linker segfaults.

Yup, it wouldn't surprise me, since the Alpha linker also does this
when you try to link i386 object files with it.  Go binutils go!

(BTW: if you're using the aboot ISO9660 code for PALO, be forewarned
that there are some bad bugs in it that I've recently fixed - 0.7pre3
has the updates)

-- 
David Huggins-Daines, Senior Linux Consultant, Linuxcare, Inc.
613.562.1239 desk, 613.223.0225 mobile
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Sam Creasey wrote:
> Hopefully this procedure will work for you:
> 
> 
> (checkout glibc)
> cd glibc
> mkdir hppa1.1-linux
> cd hppa1.1-linux
> 
> ../configure --disable-shared --disable-profile --enable-static-nss
> --build=i686-linux --host=hppa1.1-linux --disable-sanity-checks

So far so good. But since I wanted to build under HP-UX I had to change
a few things on the configure line:

../configure --disable-shared --disable-profile --enable-static-nss \
    --build=hppa1.1-hpux --host=hppa1.1-linux --disable-sanity-checks \
    --with-headers=/opt/puffin/include

/opt/puffin/include contains the linux headers files the Mathew Wilcox
tar'd and placed on puffin.external.hp.com.


> make

And then the make died for two different reasons:
1) can't use HP-UX sed. I pulled the sources from the
   porting center and installed them under /opt/puffin/

2) perl. HP-UX 11 ships with perl 4. glibc wants perl5.
   Pulled perl-5.005_03-1.hpux-11.0.depot.gz from puffin.external.hp.com
   and it got quite a bit further

3) I also removed "csu" from sysd-sorted directory list.
   Mathew told me to. So I did. This has to be done *after*
   running ./configure script.

and then the make completed.

> 
> (yes, the entire make should actually happen right now -- though
> nss/makedb still won't compile without the binutils fix I just checked
> in).
> 
> make install install_root=/raid/hp/root MAKEINFO=

Since my NFS root isn't on my build machine, I used
    make install install_root=/linux/root MAKEINFO=

with the plan on recursively copying that over to the nfs root.
For some reason I had to remove "csu" from sysd-sorted again.
Probably just forgot too while retrying something...

thanks Sammy!
grant

> 
> This runs in install into the root for my 712's NFS mount.
> The MAKEINFO= is important, it keeps it from trying to build the manuals,
> which doesn't work without the addon.
> 
> Hope it goes as smoothly for anyone else.
> 
> -- Sam

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Newsgroups: gmane.linux.ports.parisc
Subject: [hppa-linux] new CVS layout
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Alex and I just restructured the CVS repository, so there's no longer an
intervening hppa-linux directory.

cvs -d :pserver:....@sod.res.cmu.edu/home/cvs/hppa co <module>
where you choose <module> from linux, egcs, binutils.

If you had large amounts of changes in your local tree, and are stressed
about losing them, mail me and I'll help you handle it all.

Mike

-- 
301248.67 255524.62


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] msdos_partion+120 == code 28
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Hi all,
So we are making forward progress...LAN and SCSI both sort-of talk
on the C3k. I think something in the LAN stack is causing an HPMC
but am so fed up with tulip driver I decided to look at SCSI instead.
Mostly good news (we see disks and can query them) until msdos
partition code gets involved.

code 28 == "Unaligned Data Reference Trap".
(Gee, where have I seen this before? :^(  )

IAOQ  == 0xc016939c msdos_partition+120


Anyway, I'll figure out a way to ditch the msdos partitioning code
and then go back to figuring out the tulip driver/LAN problem.

I've appended the output from my c3k. All my changes are committed
at this point and it's just a matter of twiddling the .config
file to do this. 

enjoy your weekend!
grant


Main Menu: Enter command > bo lan
Interact with IPL (Y, N, Q)?> n

Booting... 
Network Station Address 001083-360089

System IP Address 15.8.80.77
Server IP Address 15.8.80.76

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@rock Thu Apr 13 21:02:08 PDT 2000
0/vmlinux 2204987 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.80.76'
0/ramdisk 614400 bytes @ 0x220d3b
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 0010190c first 00100000 n 3
Segment 0 load 00100000 size 1227316 mediaptr 0x1000
Segment 1 load 0022c000 size 101928 mediaptr 0x12d000
Segment 2 load 00248000 size 90112 mediaptr 0x146000
branching to kernel entry point 0x0010190c
The Kernel has started...
Free memory starts at: 0xc02cc000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.80.76'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00005bb0 00000481 00000000 00000002 77cd9463 100000f0 00000008 000000b2 000000b2
vers    00000200
cpuid   00000224
CPUID vers 17 rev 4
CPU(s): 1 x PA8500 at 400.000000 MHz
Searching for devices in PDC firmware... a newer box...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
2. Elroy PCI Bridge (13) at 0xfed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
3. Elroy PCI Bridge (13) at 0xfed32000, versions 0x782, 0x0, 0xa, 0x0, 0x0
4. Elroy PCI Bridge (13) at 0xfed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
5. Elroy PCI Bridge (13) at 0xfed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. AllegroHigh W  (0) at 0xfffa0000, versions 0x5bb, 0x0, 0x4, 0x0, 0x81
7. AllegroHigh Memory (1) at 0xfed10200, versions 0x86, 0x0, 0x9, 0x0, 0x0
That's a total of 7 devices.
Linux version 2.3.99-pre1 (grundler@rock) (gcc version 2.9-hppa-991112) #83 Thu Apr 13 21:01:17 PDT 2000
init_bootmem 716 32768
init_bootmem complete
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
trap_init
Calibrating delay loop... 758.58 BogoMIPS
Memory: 124740k available
kmem_test() - start
kmem_free: Bad front redzone (objp=c7ffe004, name=test-cachep)
kmem_free: Bad rear redzone (objp=c7ffe004, name=test-cachep)
kmem_test() - finished
c7ff0000 c7ff8000 c7fee000 c7ffc000
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
lba version TR2.1 (0x2) found at 0xfed30000
Scanning bus 00
Found 00:60 [1011/0019] 000200 00
Found 00:68 [11d4/1889] 000401 00
Found 00:70 [100b/0002] 000101 00
Found 00:71 [100b/000e] 000680 00
Found 00:72 [100b/0012] 000c03 00
Found 00:78 [1000/000b] 000100 00
Found 00:79 [1000/000b] 000100 00
Fixups for bus 00
lba_fixup_bus(0xc7ffd660) bus 0 sysdata 0xc7feb0e0
request_irq(258, c0123e94, 0x0, iosapic, c7fbb060)
request_irq(259, c0123e94, 0x0, iosapic, c7fbb080)
request_irq(260, c0123e94, 0x0, iosapic, c7fbb020)
request_irq(261, c0123e94, 0x0, iosapic, c7fbb020)
request_irq(262, c0123e94, 0x0, iosapic, c7fbb020)
request_irq(263, c0123e94, 0x0, iosapic, c7fbb040)
request_irq(264, c0123e94, 0x0, iosapic, c7fbb040)
Bus scan for 00 returning with max=00
lba version TR2.1 (0x2) found at 0xfed32000
Scanning bus 01
Found 01:30 [1000/000f] 000100 00
Fixups for bus 01
lba_fixup_bus(0xc7ffd700) bus 1 sysdata 0xc7feb1a0
request_irq(265, c0123e94, 0x0, iosapic, c7fbb260)
Bus scan for 01 returning with max=01
lba version TR2.1 (0x2) found at 0xfed38000
Scanning bus 02
Found 02:08 [12ae/0001] 000200 00
Fixups for bus 02
lba_fixup_bus(0xc7ffd7a0) bus 2 sysdata 0xc7feb220
request_irq(266, c0123e94, 0x0, iosapic, c7fbb4c0)
Bus scan for 02 returning with max=02
lba version TR2.1 (0x2) found at 0xfed3c000
lba: iosapic_register says not used
Warning : device (13, 0x782, 0x0, 0xa, 0x0) NOT claimed by lba TR2.1
SBA at 0xfed00000
IOS_DIST_BASE   : 000000ff fee00001
IOS_DIST_MASK   : 000000ff ffff0000
IOS_DIST_ROUTE  : 34000000 00000000

IOS_DIRECT_BASE : 000000ff fee00a00
IOS_DIRECT_MASK : 000000ff ffff0000
IOS_DIRECT_ROUTE: 00000000 00000000
SBA found Astro 2.1 at 0xfed00000
sba_hw_init() hpa 0xfed00000 ioc_ctl 0x29cf ->sba_ioc_init hpa 0xfed22000 mem 128MBIOV 16MB (24 bits) PDIR size 0x8000 base c7fa8000
sba_ioc_init IOV base 0x1 mask 0xff000000
lba_init_iregs() ibase 0x1 imask 0xfc000000
lba_init_iregs() base_addr fed38000
lba_init_iregs() base_addr fed32000
lba_init_iregs() base_addr fed30000
lba_init_iregs() done
sba_ioc_init done
sba_common_init() res_size 0x200
lba: lba_bios_init
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
Starting kswapd v1.6
Serial driver version 4.92 (2000-1-27) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sym53c8xx: at PCI bus 1, device 6, function 0
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 15, function 0
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 15, function 1
sym53c8xx: 53c896 detected 
sym53c875-0: rev 0x3 on pci bus 1 device 6 function 0 irq 768
sym53c875-0: NCR clock is 40037KHz
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xf4800000
request_irq(768, c01cfc94, 0x4000000, sym53c8xx, c7f76000)
sym53c875-0: restart (scsi reset).
sym53c875-0: Downloading SCSI SCRIPTS.
sym53c896-1: rev 0x4 on pci bus 0 device 15 function 0 irq 513
sym53c896-1: NCR clock is 40218KHz
sym53c896-1: ID 7, Fast-40, Parity Checking
sym53c896-1: on-chip RAM at 0xf4002000
request_irq(513, c01cfc94, 0x4000000, sym53c8xx, c7f70000)
sym53c896-1: suspicious SCSI data while resetting the BUS.
sym53c896-1: dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,atn,msg,c/d,i/o = 0x4000100, expecting 0x100
sym53c896-1: FATAL ERROR: CHECK SCSI BUS - CABLES, TERMINATION, DEVICE POWER etc.!
sym53c896-1: giving up ...
kernel BUG at sym53c8xx.c:707!
sym53c896-1: rev 0x4 on pci bus 0 device 15 function 1 irq 513
sym53c896-1: NCR clock is 40218KHz
sym53c896-1: ID 7, Fast-40, Parity Checking
sym53c896-1: on-chip RAM at 0xf4000000
request_irq(513, c01cfc94, 0x4000000, sym53c8xx, c7f70000)
sym53c896-1: restart (scsi reset).
sym53c896-1: handling phase mismatch from SCRIPTS.
sym53c896-1: Downloading SCSI SCRIPTS.
scsi0 : sym53c8xx - version 1.5k
scsi1 : sym53c8xx - version 1.5k
scsi : 2 hosts.
  Vendor: SEAGATE   Model: ST32272WC         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 5, lun 0
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sdb at scsi0, channel 0, id 8, lun 0
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sdc at scsi0, channel 0, id 10, lun 0
sym53c875-0-<5,0>: tagged command queue depth set to 8
sym53c875-0-<8,0>: tagged command queue depth set to 8
sym53c875-0-<10,0>: tagged command queue depth set to 8
  Vendor: SEAGATE   Model: ST19171N          Rev: HP06
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sdd at scsi1, channel 0, id 5, lun 0
  Vendor: SEAGATE   Model: ST39102LC         Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sde at scsi1, channel 0, id 6, lun 0
sym53c896-1-<5,0>: tagged command queue depth set to 8
sym53c896-1-<6,0>: tagged command queue depth set to 8
scsi : detected 5 SCSI disks total.
sym53c875-0-<5,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sda: hdwr sector= 512 bytes. Sectors= 4165272 [2033 MB] [2.0 GB]
Partition check:
 sda: unknown partition table
sym53c875-0-<8,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 8388314 [4095 MB] [4.1 GB]
 sdb:
Dumping Stack from c7fbc000 to c7fbc980:
c000 00000000 00000140 00000000 00000000 c0233980 00000000 00000000 ffffffff
c020 00000007 00000014 00000000 00000000 c02396f8 00000000 00000000 c02317f0
c040 c02317f0 c7fa4000 c025c000 00000000 00000000 00000000 00000000 00000000
c060 00000000 00000000 00000001 00000000 00000000 00000000 00000000 c025c000
c080 c025c000 c7f7c000 00000000 00000000 00000000 c02c205c 00000000 c7fbc09c
c0a0 c7fbc09c c7fbc0a4 c012e9cc c7fbc688 00000000 00000000 00000000 00000000
c0c0 00000000 00000000 00000000 00000000 00000000 00000000 c7fbc000 c01344f0
c0e0 00000000 00000000 000002ed 00000000 00000000 00000022 00000000 0000030f
c100 00000000 00000000 00000000 00000000 00000000 00000000 80000000 00000000
c120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1c0 fffffeff fffffeff ffffffff 00000000 ffffffff ffffffff ffffffff ffffffff
c1e0 ffffffff ffffffff 00800000 05000000 00000000 ffffffff ffffffff ffffffff
c200 00000800 00000800 00000400 00000400 ffffffff ffffffff ffffffff ffffffff
c220 00007377 61707065 72000000 00000000 00000000 00000000 00000000 00000000
c240 00000000 c7fee000 c063ff18 f00008c4 f0400004 00000000 c7ffee00 c0101e58
c260 c02c1800 00504d64 c7ff0000 c0130370 c01303a8 c0234000 c7fee000 c063ff18
c280 f0400004 c02626ab 0004000a 0000003c 0000003e 0000000b c0233000 c02626cf
c2a0 c02626cf 00000004 00000000 c0101fe0 00000001 00000000 0000003e 0000003c
c2c0 00000024 c02339c8 f000017c f0000174 000000ff 0025c5c0 c0260000 c025e000
c2e0 c00003a8 c02626cf 00000003 00000000 c022c000 00000000 c7fbca80 c01034f0
c300 c0130370 00000000 00000000 00000000 c023a000 c0239040 c0239050 00000000
c320 c02391f0 00000000 00000000 00000000 00000000 00000000 c7fbc334 00000000
c340 00000000 00000000 00000000 00000001 00000000 00000000 c7fbc358 c7fbc358
c360 c7fbc360 c012e9cc c7fbc368 00000000 00000000 00000000 00000000 00000000
c380 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c3a0 00000000 00000000 00000000 c0103448 00000000 00000000 00000000 00000000
c3c0 c02396f8 00000000 c025c000 00000000 00000000 00000000 00000000 00000000
c3e0 00000000 00000000 00000000 c0101ff4 00000000 00000000 00000000 00000000
c400 00000000 00000000 00000000 00000000 c7fbc000 c02396f8 00000000 c025c000
c420 c025c500 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c440 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c460 00000000 00000000 00000000 c0248a00 00000000 00000000 00000000 00000000
c480 00000001 c023d000 00000000 00000000 c00003a8 c02339bc c02339bc c01dba4c
c4a0 00000000 00000000 c0248938 c0248938 00000000 00000000 00000000 00000000
c4c0 c025c500 f0400004 00000000 c01de224 c0237800 ffffffff c7ffdde0 c0147284
c4e0 c7fbc000 c02396f8 c0255460 c024ba40 c025c500 00000000 00000000 00000000
c500 f00008c4 f0400004 00000000 ffffffff 00000000 c02c1800 00504d64 c7ff0000
c520 c02c0800 c02c3000 c022c000 c024c87c c025b0dc c025c000 c025c500 00000000
c540 00504d64 c7ff0000 c02c0800 c02c3000 c022c000 c025b104 c025b0ec c020c5e8
c560 00000004 00000037 c0130370 c024c848 00000064 0000003e 0000003c 0000003b
c580 c7ff0000 c02c0800 c02c3000 00000000 c00003a8 c02339bc c02339bc c01bad84
c5a0 00000004 00000000 c02507b0 c02507b0 0000000b 0000003e 0000003c 00000015
c5c0 c02c1800 c02ca800 c0242000 c0242000 c01bb000 00000000 00000000 c02426c4
c5e0 c02ca800 c0242000 c0242000 c01bb000 00000000 00000000 00000000 00000000
c600 00000000 00000000 00000000 007ffeda 00000000 00000000 c01bad8b 00000001
c620 00000000 00000000 c0130370 c01c725c 00000000 00000018 39393820 53656167
c640 c7feb720 c02ca800 25000000 00000000 00003000 00000000 00000000 c7f7b460
c660 c0242000 0000000b 00000000 c0168bd4 c02345fc 00000014 c01c3000 000000a0
c680 c0242000 00000010 c0242000 00000001 07fbc6c0 c0260000 c025e000 c00003a8
c6a0 c02626b2 00000003 00000000 c0168c78 00000000 00000400 c7fbc780 c0130370
c6c0 f0000174 f000017c 73646200 c7fbc780 f0000174 f000017c f00008c4 f0400004
c6e0 00000000 ffffffff 00000000 c02426c4 c02bf800 c0242000 c0242000 c0242000
c700 00000010 c0242000 c02bf800 c0242000 c0242000 c02c9800 00000020 00000010
c720 c0242720 00000023 00000000 c01449a0 00000000 0000003e 0000003c 00000024
c740 00000000 00000001 00000004 00000fff fffffffd c7fbc790 c7fbc6c8 c0168a64
c760 00000000 00000003 c0168b48 c0168b48 00000010 c02345fc 00000000 00000028
c780 f00008c4 f0400004 00000000 ffffffff 00000000 c02426c4 c02bf800 00000011
c7a0 c0242720 00000810 00000000 00000010 c0237800 c025f180 c7fbc880 0000001f
c7c0 00000010 00000005 f0000174 f000017c f00008c4 f0400004 00000000 ffffffff
c7e0 00000000 c02426c4 00000010 00000011 c0242720 00000810 00000000 c02372e4
c800 00000000 c02626ae ffffffff ffffffff 0000000b c0233000 c02626b3 c02626b4
c820 00000004 00000005 00000000 c0169324 00000001 c0237800 0000003c 0000004d
c840 0004ff0b 00000000 c0169324 c7f635be 00000001 c0242720 00000011 00000001
c860 c0100000 00000000 c7f63400 c02ab000 c7f62160 0000000f 00000002 c0169000
c880 c0169000 00000085 00005000 00000015 000055aa ffffffff 00000001 00000000
c8a0 c7fbc898 c7fbc898 c7f62160 c022c000 c7f62160 00000001 c7fbc980 00000000
c8c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c8e0 00000000 00000000 c016939c c01693a0 00000000 c7f6b000 00000000 00000000
c900 0c781096 00000000 c7f635ca c0242720 00000011 c0242720 00000001 00000810
c920 00000010 00000002 c02626f2 c019b790 00000000 00000000 00000000 00000000
c940 00000008 c02626f8 00000080 00000000 00000080 00000080 c0231800 c02626ab
c960 f0000174 f000017c c014e83c c01046d4 00000008 c7fbbca0 00000000 00000004

Unexpected Interruption!: Code=28 regs=c7fbc840 (Addr=00000000)

PSW  : 0004ff0b  GR 1 : 00000000  GR 2 : c0169324  GR 3 : c7f635be  
GR 4 : 00000001  GR 5 : c0242720  GR 6 : 00000011  GR 7 : 00000001  
GR 8 : c0100000  GR 9 : 00000000  GR10 : c7f63400  GR11 : c02ab000  
GR12 : c7f62160  GR13 : 0000000f  GR14 : 00000002  GR15 : c0169000  
GR16 : c0169000  GR17 : 00000085  GR18 : 00005000  GR19 : 00000015  
GR20 : 000055aa  GR21 : ffffffff  GR22 : 00000001  GR23 : 00000000  
GR24 : c7fbc898  GR25 : c7fbc898  GR26 : c7f62160  GR27 : c022c000  
GR28 : c7f62160  GR29 : 00000001  GR30 : c7fbc980  GR31 : 00000000  
SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000  
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  

IASQ : 00000000 00000000 IAOQ : c016939c c01693a0
 IIR : 0c781096 ISR : 00000000 IOR : c7f635ca



From - Thu Nov 08 21:12:26 2018
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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] cross compiling glibc
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Xref: news.gmane.org gmane.linux.ports.parisc:7211

Grant Grundler wrote:

> Since my NFS root isn't on my build machine, I used
>     make install install_root=/linux/root MAKEINFO=

and since I sent the mail *before* the make install completed...
It died with:

make[2]: Entering directory `/linux/grundler/glibc/setjmp'
hppa1.1-linux-gcc ../sysdeps/hppa/setjmp.S -c  -I../include -I. -I/linux/grundler/glibc/hppa1.1-linux/setjmp -I.. -I../libio  -I/linux/grundler/glibc/hppa1.1-linux -I../sysdeps/hppa/elf -I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic  -nostdinc -isystem /opt/puffin/lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/include -isystem /opt/puffin/include  -include ../include/libc-symbols.h     -DASSEMB
 LER   -o /linux/grundler/glibc/hppa1.1-linux/setjmp/setjmp.o
../sysdeps/hppa/setjmp.S: Assembler messages:
../sysdeps/hppa/setjmp.S:102: Error: Missing .callinfo for this procedure
make[2]: *** [/linux/grundler/glibc/hppa1.1-linux/setjmp/setjmp.o] Error 1
make[2]: Leaving directory `/linux/grundler/glibc/setjmp'
make[1]: *** [setjmp/subdir_lib] Error 2
make[1]: Leaving directory `/linux/grundler/glibc'
make: *** [install] Error 2


Using the wrong assembler? (or something else stupid like that?)

grant


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Subject: Re: [parisc-linux] msdos_partion+120 == code 28
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Xref: news.gmane.org gmane.linux.ports.parisc:7212

Grant Grundler wrote:
> code 28 == "Unaligned Data Reference Trap".
> (Gee, where have I seen this before? :^(  )
> 
> IAOQ  == 0xc016939c msdos_partition+120

So here's the output using "CONFIG_MAC_PARTITION=y"
and "# CONFIG_MSDOS_PARTITION is not set". It gets
just as far as without SCSI (dies after getting BOOTP reply).

grant

ps. I still have to write the sba_map_sg() and sba_unmap_sg()
for "real" SCSI support...but a simple version (no optimizations)
should be easy.

Grant Grundler
Unix Development Lab
+1.408.447.7253


Main Menu: Enter command > bo lan
Interact with IPL (Y, N, Q)?> n

Booting... 
Network Station Address 001083-360089

System IP Address 15.8.80.77
Server IP Address 15.8.80.76

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@rock Fri Apr 14 15:46:37 PDT 2000
0/vmlinux 2204600 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.80.76'
0/ramdisk 614400 bytes @ 0x220bb8
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 0010190c first 00100000 n 3
Segment 0 load 00100000 size 1226084 mediaptr 0x1000
Segment 1 load 0022c000 size 101928 mediaptr 0x12d000
Segment 2 load 00248000 size 90112 mediaptr 0x146000
branching to kernel entry point 0x0010190c
The Kernel has started...
Free memory starts at: 0xc02cc000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.80.76'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00005bb0 00000481 00000000 00000002 77cd9463 100000f0 00000008 000000b2 000000b2
vers    00000200
cpuid   00000224
CPUID vers 17 rev 4
CPU(s): 1 x PA8500 at 400.000000 MHz
Searching for devices in PDC firmware... a newer box...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
2. Elroy PCI Bridge (13) at 0xfed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
3. Elroy PCI Bridge (13) at 0xfed32000, versions 0x782, 0x0, 0xa, 0x0, 0x0
4. Elroy PCI Bridge (13) at 0xfed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
5. Elroy PCI Bridge (13) at 0xfed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. AllegroHigh W  (0) at 0xfffa0000, versions 0x5bb, 0x0, 0x4, 0x0, 0x81
7. AllegroHigh Memory (1) at 0xfed10200, versions 0x86, 0x0, 0x9, 0x0, 0x0
That's a total of 7 devices.
Linux version 2.3.99-pre1 (grundler@rock) (gcc version 2.9-hppa-991112) #84 Fri Apr 14 15:46:12 PDT 2000
init_bootmem 716 32768
init_bootmem complete
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
trap_init
Calibrating delay loop... 758.58 BogoMIPS
Memory: 124740k available
kmem_test() - start
kmem_free: Bad front redzone (objp=c7ffe004, name=test-cachep)
kmem_free: Bad rear redzone (objp=c7ffe004, name=test-cachep)
kmem_test() - finished
c7ff0000 c7ff8000 c7fee000 c7ffc000
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
lba version TR2.1 (0x2) found at 0xfed30000
Scanning bus 00
Found 00:60 [1011/0019] 000200 00
Found 00:68 [11d4/1889] 000401 00
Found 00:70 [100b/0002] 000101 00
Found 00:71 [100b/000e] 000680 00
Found 00:72 [100b/0012] 000c03 00
Found 00:78 [1000/000b] 000100 00
Found 00:79 [1000/000b] 000100 00
Fixups for bus 00
lba_fixup_bus(0xc7ffd660) bus 0 sysdata 0xc7feb0e0
request_irq(258, c0123e94, 0x0, iosapic, c7fbb060)
request_irq(259, c0123e94, 0x0, iosapic, c7fbb080)
request_irq(260, c0123e94, 0x0, iosapic, c7fbb020)
request_irq(261, c0123e94, 0x0, iosapic, c7fbb020)
request_irq(262, c0123e94, 0x0, iosapic, c7fbb020)
request_irq(263, c0123e94, 0x0, iosapic, c7fbb040)
request_irq(264, c0123e94, 0x0, iosapic, c7fbb040)
Bus scan for 00 returning with max=00
lba version TR2.1 (0x2) found at 0xfed32000
Scanning bus 01
Found 01:30 [1000/000f] 000100 00
Fixups for bus 01
lba_fixup_bus(0xc7ffd700) bus 1 sysdata 0xc7feb1a0
request_irq(265, c0123e94, 0x0, iosapic, c7fbb260)
Bus scan for 01 returning with max=01
lba version TR2.1 (0x2) found at 0xfed38000
Scanning bus 02
Found 02:08 [12ae/0001] 000200 00
Fixups for bus 02
lba_fixup_bus(0xc7ffd7a0) bus 2 sysdata 0xc7feb220
request_irq(266, c0123e94, 0x0, iosapic, c7fbb4c0)
Bus scan for 02 returning with max=02
lba version TR2.1 (0x2) found at 0xfed3c000
lba: iosapic_register says not used
Warning : device (13, 0x782, 0x0, 0xa, 0x0) NOT claimed by lba TR2.1
SBA at 0xfed00000
IOS_DIST_BASE   : 000000ff fee00001
IOS_DIST_MASK   : 000000ff ffff0000
IOS_DIST_ROUTE  : 34000000 00000000

IOS_DIRECT_BASE : 000000ff fee00200
IOS_DIRECT_MASK : 000000ff ffff0000
IOS_DIRECT_ROUTE: 00000000 00000000
SBA found Astro 2.1 at 0xfed00000
sba_hw_init() hpa 0xfed00000 ioc_ctl 0x29cf ->sba_ioc_init hpa 0xfed22000 mem 128MBIOV 16MB (24 bits) PDIR size 0x8000 base c7fa8000
sba_ioc_init IOV base 0x1 mask 0xff000000
lba_init_iregs() ibase 0x1 imask 0xfc000000
lba_init_iregs() base_addr fed38000
lba_init_iregs() base_addr fed32000
lba_init_iregs() base_addr fed30000
lba_init_iregs() done
sba_ioc_init done
sba_common_init() res_size 0x200
lba: lba_bios_init
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
Starting kswapd v1.6
Serial driver version 4.92 (2000-1-27) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sym53c8xx: at PCI bus 1, device 6, function 0
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 15, function 0
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 15, function 1
sym53c8xx: 53c896 detected 
sym53c875-0: rev 0x3 on pci bus 1 device 6 function 0 irq 768
sym53c875-0: NCR clock is 40037KHz
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xf4800000
request_irq(768, c01cf7d4, 0x4000000, sym53c8xx, c7f76000)
sym53c875-0: restart (scsi reset).
sym53c875-0: Downloading SCSI SCRIPTS.
sym53c896-1: rev 0x4 on pci bus 0 device 15 function 0 irq 513
sym53c896-1: NCR clock is 40218KHz
sym53c896-1: ID 7, Fast-40, Parity Checking
sym53c896-1: on-chip RAM at 0xf4002000
request_irq(513, c01cf7d4, 0x4000000, sym53c8xx, c7f70000)
sym53c896-1: suspicious SCSI data while resetting the BUS.
sym53c896-1: dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,atn,msg,c/d,i/o = 0x4000100, expecting 0x100
sym53c896-1: FATAL ERROR: CHECK SCSI BUS - CABLES, TERMINATION, DEVICE POWER etc.!
sym53c896-1: giving up ...
kernel BUG at sym53c8xx.c:707!
sym53c896-1: rev 0x4 on pci bus 0 device 15 function 1 irq 513
sym53c896-1: NCR clock is 40218KHz
sym53c896-1: ID 7, Fast-40, Parity Checking
sym53c896-1: on-chip RAM at 0xf4000000
request_irq(513, c01cf7d4, 0x4000000, sym53c8xx, c7f70000)
sym53c896-1: restart (scsi reset).
sym53c896-1: handling phase mismatch from SCRIPTS.
sym53c896-1: Downloading SCSI SCRIPTS.
scsi0 : sym53c8xx - version 1.5k
scsi1 : sym53c8xx - version 1.5k
scsi : 2 hosts.
  Vendor: SEAGATE   Model: ST32272WC         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 5, lun 0
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sdb at scsi0, channel 0, id 8, lun 0
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sdc at scsi0, channel 0, id 10, lun 0
sym53c875-0-<5,0>: tagged command queue depth set to 8
sym53c875-0-<8,0>: tagged command queue depth set to 8
sym53c875-0-<10,0>: tagged command queue depth set to 8
  Vendor: SEAGATE   Model: ST19171N          Rev: HP06
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sdd at scsi1, channel 0, id 5, lun 0
  Vendor: SEAGATE   Model: ST39102LC         Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sde at scsi1, channel 0, id 6, lun 0
sym53c896-1-<5,0>: tagged command queue depth set to 8
sym53c896-1-<6,0>: tagged command queue depth set to 8
scsi : detected 5 SCSI disks total.
sym53c875-0-<5,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sda: hdwr sector= 512 bytes. Sectors= 4165272 [2033 MB] [2.0 GB]
Partition check:
 sda: unknown partition table
sym53c875-0-<8,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 8388314 [4095 MB] [4.1 GB]
 sdb: unknown partition table
sym53c875-0-<10,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sdc: hdwr sector= 512 bytes. Sectors= 8388314 [4095 MB] [4.1 GB]
 sdc: unknown partition table
sym53c896-1-<5,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sdd: hdwr sector= 512 bytes. Sectors= 17783112 [8683 MB] [8.7 GB]
 sdd: unknown partition table
sym53c896-1-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sde: hdwr sector= 512 bytes. Sectors= 17773524 [8678 MB] [8.7 GB]
 sde: unknown partition table
Linux Tulip driver version 0.9.4.2 (Mar 21, 2000)
pcibios_enable_device: Enabling device 00:0c.0 (0057 -> 0157)
eth0: Digital DS21143 Tulip rev 48 at 0x1000, 00:10:83:36:00:89, IRQ 514.
eth0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
request_irq(514, c01b3434, 0x4000000, eth0, c7fb0800)
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 15.8.80.76, my address is 15.8.80.77


From - Thu Nov 08 21:12:26 2018
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From: Philipp Rumpf <prumpf@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] msdos_partion+120 == code 28
Date: Fri, 14 Apr 2000 18:16:23 -0600
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In-Reply-To: <200004142233.PAA20334@milano.cup.hp.com>; from Grant Grundler on Fri, Apr 14, 2000 at 03:33:45PM -0700
Xref: news.gmane.org gmane.linux.ports.parisc:7213

> So we are making forward progress...LAN and SCSI both sort-of talk
> on the C3k. I think something in the LAN stack is causing an HPMC
> but am so fed up with tulip driver I decided to look at SCSI instead.
> Mostly good news (we see disks and can query them) until msdos
> partition code gets involved.
> 
> code 28 == "Unaligned Data Reference Trap".
> (Gee, where have I seen this before? :^(  )
> 
> IAOQ  == 0xc016939c msdos_partition+120
> 

Can you resolve that into a line of the C code ?  It looks to me like
the msdos partition code has been fixed to use get_unaligned and le*_to_cpu
so I believe this should be a genuine bug.

	Philipp Rumpf


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In-Reply-To: <200004142232.PAA20329@milano.cup.hp.com>; from Grant Grundler on Fri, Apr 14, 2000 at 03:32:21PM -0700
Xref: news.gmane.org gmane.linux.ports.parisc:7214

On Fri, Apr 14, 2000 at 03:32:21PM -0700, Grant Grundler wrote:
> 3) I also removed "csu" from sysd-sorted directory list.
>    Mathew told me to. So I did. This has to be done *after*
>    running ./configure script.
> 
> and then the make completed.

that was more a quick hack to get you to the next level than something
i'd recommend.  the `missing callinfo' error indicates you're using
an old version of binutils.  however, the current contents of the cvs
binutils won't build a kernel which boots.  i think it's my fault and
i'm trying to fix it.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] msdos_partion+120 == code 28
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Xref: news.gmane.org gmane.linux.ports.parisc:7215

Philipp Rumpf wrote:
> > code 28 == "Unaligned Data Reference Trap".
> > (Gee, where have I seen this before? :^(  )
> > 
> > IAOQ  == 0xc016939c msdos_partition+120
> > 
> 
> Can you resolve that into a line of the C code ?  It looks to me like
> the msdos partition code has been fixed to use get_unaligned and le*_to_cpu
> so I believe this should be a genuine bug.


0000058c <msdos_partition>:
...
 6ac:   0c 78 10 96     ldw c(sr0,r3),r22

GR 3 : c7f629be

I started looking at the code and I wasn't able to finish tracking
this down to day. Any other takers?

If I had to guess, I'd say check dereferences of nr_sects in struct
partition. But that's not obvious in msdos_partition...

thanks,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] code 28 in msdos_partition()
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Xref: news.gmane.org gmane.linux.ports.parisc:7216


I figured out line 434 (of 497) fs/partitions/msdos.c
("if (!NR_SECTS(p))") is causing the code 28 trap (unaligned data
reference trap) despite the use of get_unaligned() macro. Seems
get_unaligned() just isn't supported. I tried tracking this down in
order to fix it but got distracted by another problem.
If someone feels like they want to contribute in
a small way, fixing get/put unaligned would be helpful.

The problem which distracted me was the use of generic
swap macros by get_unaligned. parisc-linux defines architecture
specific macros and I couldn't figure out why those
were NOT being used. Any takers for this too?

I'm punting for now on both problems because:
a) opportunity for someone else to contribute
b) I can work more on the HPMC problems.

thanks,
grant


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2-way j5000 hangs early
Date: Tue, 18 Apr 2000 18:01:39 -0700 (PDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:7217

Hi all,

I was hoping to use a j5000 to debug problems with built-in 100BT
but couldn't even "get off the ground" (so to speak). The J5000
slot 1 is on the "core I/O" bus - I wanted to monitor PCI bus activity
of "built-in" devices. I can't do that on a C3k.

The j5000 I was loaned for the next couple of days is a 2-way
machine (as opposed to a 1-way c3k I was using up to now).
No other "extras" installed in this system.
(PCX-W rev 5, my c3k is rev 4)

I'm open to ideas on what might be wrong.
Going home for today and won't be back until tomorrow afternoon.
Appended is the complete console output (ends with pagetable_init).

thanks,
grant


Firmware Version 3.5

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-1999, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache 
  ---------  --------   ---------------------  -----------------  -------------
      0      440 MHz    Active                 Functional         512 kB/1 MB
      1      440 MHz    Idle                   Functional         512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:             2147483648 bytes
  Good memory required:                  0 bytes (Not Set by OS)

  Primary boot path:    FWSCSI.6.0
  Alternate boot path:  SCSI.6.0
  Console path:         PCI7.0.0
  Keyboard path:        USB

CPU 0
WARNING:  Processor self-tests have been disabled because FASTBOOT is
          enabled.  To enable self-tests, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.

CPU 1
WARNING:  Processor self-tests have been disabled because FASTBOOT is
          enabled.  To enable self-tests, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


----- Main Menu -------------------------------------------------------------

      Command                           Description
      -------                           -----------
      BOot [PRI|ALT|<path>]             Boot from specified path
      PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path
      SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices

      COnfiguration [<command>]         Access Configuration menu/commands
      INformation [<command>]           Access Information menu/commands
      SERvice [<command>]               Access Service menu/commands

      DIsplay                           Redisplay the current menu
      HElp [<menu>|<command>]           Display help for menu or command
      RESET                             Restart the system
-----
Main Menu: Enter command > bo lan
Interact with IPL (Y, N, Q)?> n

Booting... 
Network Station Address 001083-7a0f6c

System IP Address 15.8.80.77
Server IP Address 15.8.80.76

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@rock Tue Apr 18 17:00:37 PDT 2000
0/vmlinux 1956928 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.80.76'
0/ramdisk 614400 bytes @ 0x1e4440
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 0010178c first 00100000 n 4
Segment 0 load 00100000 size 1100948 mediaptr 0x1000
Segment 1 load 0020e000 size 95400 mediaptr 0x10e000
Segment 2 load 00228000 size 55988 mediaptr 0x126000
Segment 3 load 00238000 size 8192 mediaptr 0x134000
branching to kernel entry point 0x0010178c
The Kernel has started...
Free memory starts at: 0xc02a4000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.80.76'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00005bd0 00000491 00000000 00000002 77fc84a7 100000f0 00000008 000000b2 000000b2
vers    00000201
cpuid   00000225
CPUID vers 17 rev 5
CPU(s): 1 x PA8500 at 440.000000 MHz
Searching for devices in PDC firmware... a newer box...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
2. Elroy PCI Bridge (13) at 0xfed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
3. Elroy PCI Bridge (13) at 0xfed32000, versions 0x782, 0x0, 0xa, 0x0, 0x0
4. Elroy PCI Bridge (13) at 0xfed34000, versions 0x782, 0x0, 0xa, 0x0, 0x0
5. Elroy PCI Bridge (13) at 0xfed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. Elroy PCI Bridge (13) at 0xfed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
7. Forte W 2-way (0) at 0xfffa0000, versions 0x5bd, 0x0, 0x4, 0x0, 0x91
8. Forte W 2-way (0) at 0xfffa2000, versions 0x5bd, 0x0, 0x4, 0x0, 0x91
9. Forte 2w Memory (1) at 0xfed10200, versions 0x88, 0x0, 0x9, 0x0, 0x0
That's a total of 9 devices.
Linux version 2.3.99-pre1 (grundler@rock) (gcc version 2.9-hppa-991112) #6 Tue Apr 18 17:00:23 PDT 2000
initrd: 00000000-00000000
pagetable_init


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2-way j5000 hangs early
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Grant Grundler wrote:
> Hi all,
> 
> I was hoping to use a j5000 to debug problems with built-in 100BT
> but couldn't even "get off the ground" (so to speak).

I forgot to append the TOC output....here it is.

Grant Grundler
Unix Development Lab
+1.408.447.7253

-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  ffffffffc023d000  00000000c01131dc  0000000000000000
04-07   00000000c023b300  00000000c020e1fc  0000000000000006  0000000000000004
08-11   ffffffffc0100000  00000000c023e6b2  00000000c023e6b2  ffffffffc0215000
12-15   000000000000000a  000000000000003e  000000000000003c  0000000000000007
16-19   00000000c023b300  00000000f000017c  00000000f0000174  00000000000007ab
20-23   000000000001ea80  0000000000000001  0000000000000001  000000000001eac0
24-27   00000000000007ab  0000000000000800  0000000000000040  ffffffffc020e000
28-31   0000000000000000  00000000c023b300  00000000c023b4c0  00000000c0130370

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  00000000000000c0  000000000000001f
12-15   0000000000000000  0000000000000000  0000000000103000  0000000000000000
16-19   000000458ce198af  0000000000000000  00000000c01131c0  000000008a79bfa5
20-23   0000000015240000  000000000781ea80  000000000004000a  0000000080000000
24-27   000000000021c000  000000000021c000  00000000ffffffff  00000000ffffffff
28-31   0000000000000000  0000000000000000  0000000000000000  000000000023b300
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x00000000c01131c4
CPU State                    = 0x9e000001



IIA 0xc01131c4 flush_instruction_cache+54
GR2 0xc01131dc flush_all_caches+c




-----------------  Processor 1 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  00000045997a6613  0000000000000000  0000000000000000
04-07   0000000000000547  fffffff0f0400008  00000000000000fa  fffffff0f0002f68
08-11   0000000000000000  0000000000000000  000000000000000a  fffffff0f0001608
12-15   00000000000000f2  0000000000000001  0000000000000001  00000000000000f3
16-19   0000000002020202  0000000000000002  fffffff0f000016c  fffffff0f04120d1
20-23   0000000000000000  fffffff0f04120d0  0000000000000000  0000000000000000
24-27   00000000000000f1  fffffff0f04120c0  fffffff0f0400880  fffffff0f0412000
28-31   0000000000000000  fffffff0f0409f30  fffffff0f0409e80  fffffffffffffff0

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   000000007fffffff  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0007ffff0007ffde  0007ffff0007ffde  0000000000000000  000000000000001e
12-15   0007ffff0007ff5e  0007ffff0007ff5e  000000f0f0003800  0000000000000000
16-19   00000045998109b2  00000000ffffffff  0000000000000794  0000000002e008a2
20-23   000000009a07c3c1  c00000007c1f00b8  0000000008000008  0000000000000000
24-27   ffffffffffffffde  ffffffffffffffde  ffffffffffffffff  ffffffffffffffde
28-31   ffffffffffffffde  ffffffffffffffde  ffffffffffffffde  ffffffffffffffde
Space Registers 0 - 7

00-03   ffffffff          ffffffff          ffffffff          ffffffff
04-07   ffffffff          ffffffff          ffffffff          ffffffff

IIA Space                    = 0x00000000ffffffff
IIA Offset                   = 0x0000000000000798
CPU State                    = 0x9e000001



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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] 2-way j5000 hangs early
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Grant Grundler wrote:
> The j5000 I was loaned for the next couple of days is a 2-way
> machine (as opposed to a 1-way c3k I was using up to now).

I deconfigured one of the processors this morning
and it hangs in the same way. I'll start trying
to narrow down where it "hangs" this afternoon.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Subject: [hppa-linux] memory layout
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rd.c:467: `KERNEL_DS' undeclared (first use in this function)
mmap.c:361: `TASK_UNMAPPED_BASE' undeclared (first use in this function)

It sorta begs the question: what is our memory layout going to look
like?  What goes where?  I'll pore over my PA-RISC book tonight looking
for clues, but I doubt that'll be enough.

What kind of memory layout does HP-UX use, if I might be so bold as to
ask?

Mike

-- 
305756.61 259655.94


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From: Paul Bame <bame@endor.fc.hp.com>
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Subject: Re: [parisc-linux] code 28 in msdos_partition()
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Xref: news.gmane.org gmane.linux.ports.parisc:7221

= 
= I figured out line 434 (of 497) fs/partitions/msdos.c
= ("if (!NR_SECTS(p))") is causing the code 28 trap (unaligned data
= reference trap) despite the use of get_unaligned() macro. Seems
= get_unaligned() just isn't supported. I tried tracking this down in
= order to fix it but got distracted by another problem.
= If someone feels like they want to contribute in
= a small way, fixing get/put unaligned would be helpful.

I'm interested in looking at this problem and seeing disks work in
general.  But I can't help since I don't have a box which seems to be
able to find SCSI drives (tried 712, b180, c360, and c3k).  Can you
give me a clue how to reproduce what you're seeing?

With my limited experience with Linux disks and software, the
partition table access is usually aligned right anyway, so I think
alignment traps here should be rare.

= The problem which distracted me was the use of generic
= swap macros by get_unaligned. parisc-linux defines architecture
= specific macros and I couldn't figure out why those
= were NOT being used. Any takers for this too?

Are you asking about le32_to_cpu() versus __le32_to_cpu()?  (Not that
I have an answer -- I'm just wondering if that's the question)

	-Paul Bame


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Xref: news.gmane.org gmane.linux.ports.parisc:7222

Paul Bame wrote:
> I'm interested in looking at this problem and seeing disks work in
> general.  But I can't help since I don't have a box which seems to be
> able to find SCSI drives (tried 712, b180, c360, and c3k).  Can you
> give me a clue how to reproduce what you're seeing?

I've posted my .config on puffin.external.hp.com:~grundler/config.SCSI.
This works on the c3000. Folks who want to see that file but
don't have access should please e-mail me privately.

> With my limited experience with Linux disks and software, the
> partition table access is usually aligned right anyway, so I think
> alignment traps here should be rare.

Agreed. but not in this case.


> = The problem which distracted me was the use of generic
> = swap macros by get_unaligned. parisc-linux defines architecture
> = specific macros and I couldn't figure out why those
> = were NOT being used. Any takers for this too?
> 
> Are you asking about le32_to_cpu() versus __le32_to_cpu()?  (Not that
> I have an answer -- I'm just wondering if that's the question)

I'm seeing use of
#define ___swab32(x) \
        ((__u32)( \
                (((__u32)(x) & (__u32)0x000000ffUL) << 24) | \
                (((__u32)(x) & (__u32)0x0000ff00UL) <<  8) | \
                (((__u32)(x) & (__u32)0x00ff0000UL) >>  8) | \
                (((__u32)(x) & (__u32)0xff000000UL) >> 24) ))

(from include/linux/byteorder/swab.h)

Instead of
static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
{
        unsigned int temp;
        __asm__("shd %0, %0, 16, %1\n\t"        /* shift abcdabcd -> cdab */
                "dep %1, 15, 8, %1\n\t"         /* deposit cdab -> cbab */
                "shd %0, %1, 8, %0"             /* shift abcdcbab -> dcba */
                : "=r" (x), "=&r" (temp)
                : "0" (x));
        return x;
}

(from include/asm-parisc/byteorder.h)

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


From - Thu Nov 08 21:12:27 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2-way j5000 hangs early
Date: Thu, 20 Apr 2000 15:08:02 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:7223

Grant Grundler wrote:
> Hi all,
> 
> I was hoping to use a j5000 to debug problems with built-in 100BT
> but couldn't even "get off the ground" (so to speak).

More data.  I've added printk's to two files:

grundler <540>cvs diff -u arch/parisc/mm/init.c
Index: arch/parisc/mm/init.c
===================================================================
RCS file: /home/cvs/parisc/linux-2.3/arch/parisc/mm/init.c,v
retrieving revision 1.12
diff -u -r1.12 init.c
--- init.c      2000/04/14 16:47:14     1.12
+++ init.c      2000/04/20 21:59:06
@@ -149,6 +149,7 @@
        /* Map whole memory from PAGE_OFFSET */
        pg_dir += USER_PGD_PTRS;
 
+printk(__FUNCTION__ " pg_table ");
        while (address < mem_max) {
                /* XXX: BTLB should be done here */
 
@@ -166,6 +167,7 @@
 
                /* now change pg_table to kernel virtual addresses */
                pg_table = (pte_t *) __va(pg_table);
+printk(" 0x%lx ", pg_table);
                for (tmp = 0 ; tmp < PTRS_PER_PTE ; tmp++,pg_table++) {
                        pte_t pte = __mk_pte(address, PAGE_KERNEL);
                        if (address >= mem_max)
@@ -183,8 +185,10 @@
        memset(empty_zero_page, 0, NUM_COLOURS * PAGE_SIZE);
 #endif
 
+printk("\n"__FUNCTION__ " calling alloc_bootmem_pages()\n");
        empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
        memset(empty_zero_page, 0, PAGE_SIZE);
+printk(__FUNCTION__ " done zp 0x%lx\n", empty_zero_page);
 }
 
 unsigned long gateway_pgd_offset;


grundler <541>cvs diff  -u mm/bootmem.c        
Index: mm/bootmem.c
===================================================================
RCS file: /home/cvs/parisc/linux-2.3/mm/bootmem.c,v
retrieving revision 1.5
diff -u -r1.5 bootmem.c
--- bootmem.c   2000/03/26 22:29:38     1.5
+++ bootmem.c   2000/04/20 22:00:23
@@ -210,6 +210,9 @@
                bdata->last_offset = size & ~PAGE_MASK;
                ret = phys_to_virt(start * PAGE_SIZE + bdata->node_boot_start);
        }
+
+printk(__FUNCTION__ " ret 0x%lx\n", ret);
+
        /*
         * Reserve the area now:
         */


And I've appended the console output.
I'll keep digging but I don't know WTF to look for.

I also noticed that we don't print a message when crippling
the box to 128MB of physical memory. I'm going to add
that back to make sure it's happening *before* this
init stuff happens.

thanks,
grant "my brain is hurting" grundler


Firmware Version 3.5

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-1999, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache 
  ---------  --------   ---------------------  -----------------  -------------
      0      440 MHz    Active                 Functional         512 kB/1 MB
      1      440 MHz    Stopped:Deconfigured   Unknown            512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:             2147483648 bytes
  Good memory required:            9527296 bytes

  Primary boot path:    FWSCSI.6.0
  Alternate boot path:  SCSI.6.0
  Console path:         PCI7.0.0
  Keyboard path:        USB

CPU 0
WARNING:  Processor self-tests have been disabled because FASTBOOT is
          enabled.  To enable self-tests, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.
WARNING:  Memory has been initialized but not tested because FASTBOOT is
          enabled.  To test memory, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


Searching for device(s) with bootable media...
This may take several minutes.

To discontinue search, press any key (termination may not be immediate).


   Path Number        Device Path              Device Type and Utilities
   -----------        -----------------        -------------------------
   P0                 LAN.15.8.80.76.3.254     15.8.80.76   100/Half Dx
                                               IPL
   P1                 FWSCSI.6.0               QUANTUM ATLAS10K-9LVD   
                                               IPL



Enter Path Number or Device Path to continue boot sequence.  Enter NO to go
to main menu.
> bo lan
Interact with IPL (Y, N, Q)?> n

Booting... 
Network Station Address 001083-7a0f6c

System IP Address 15.8.80.77
Server IP Address 15.8.80.76

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@rock Thu Apr 20 14:40:28 PDT 2000
0/vmlinux 1961104 bytes @ 0x7000
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.80.76'
0/ramdisk 614400 bytes @ 0x1e5c90
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 0010177c first 00100000 n 4
Segment 0 load 00100000 size 1105044 mediaptr 0x1000
Segment 1 load 0020e000 size 95400 mediaptr 0x10f000
Segment 2 load 00228000 size 56116 mediaptr 0x127000
Segment 3 load 00238000 size 8192 mediaptr 0x135000
branching to kernel entry point 0x0010177c
The Kernel has started...
Free memory starts at: 0xc02a4000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.80.76'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00005bd0 00000491 00000000 00000002 77fc84a7 100000f0 00000008 000000b2 000000b2
vers    00000201
cpuid   00000225
CPUID vers 17 rev 5
CPU(s): 1 x PA8500 at 440.000000 MHz
Searching for devices in PDC firmware... a newer box...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
2. Elroy PCI Bridge (13) at 0xfed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
3. Elroy PCI Bridge (13) at 0xfed32000, versions 0x782, 0x0, 0xa, 0x0, 0x0
4. Elroy PCI Bridge (13) at 0xfed34000, versions 0x782, 0x0, 0xa, 0x0, 0x0
5. Elroy PCI Bridge (13) at 0xfed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. Elroy PCI Bridge (13) at 0xfed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
7. Forte W 2-way (0) at 0xfffa0000, versions 0x5bd, 0x0, 0x4, 0x0, 0x91
8. Forte 2w Memory (1) at 0xfed10200, versions 0x88, 0x0, 0x9, 0x0, 0x0
That's a total of 8 devices.
Linux version 2.3.99-pre1 (grundler@rock) (gcc version 2.9-hppa-991112) #17 Thu Apr 20 14:40:22 PDT 2000
initrd: 00000000-00000000
pagetable_init
pagetable_init pg_table  0xc021d000  0xc021e000 __alloc_bootmem_core ret 0xc02b4000
 0xc02b4000 __alloc_bootmem_core ret 0xc02b5000
 0xc02b5000 __alloc_bootmem_core ret 0xc02b6000
 0xc02b6000 __alloc_bootmem_core ret 0xc02b7000
 0xc02b7000 __alloc_bootmem_core ret 0xc02b8000
 0xc02b8000 __alloc_bootmem_core ret 0xc02b9000
 0xc02b9000 __alloc_bootmem_core ret 0xc02ba000
 0xc02ba000 __alloc_bootmem_core ret 0xc02bb000
 0xc02bb000 __alloc_bootmem_core ret 0xc02bc000
 0xc02bc000 __alloc_bootmem_core ret 0xc02bd000
 0xc02bd000 __alloc_bootmem_core ret 0xc02be000
 0xc02be000 __alloc_bootmem_core ret 0xc02bf000
 0xc02bf000 __alloc_bootmem_core ret 0xc02c0000
 0xc02c0000 __alloc_bootmem_core ret 0xc02c1000
 0xc02c1000 __alloc_bootmem_core ret 0xc02c2000
 0xc02c2000 __alloc_bootmem_core ret 0xc02c3000
 0xc02c3000 __alloc_bootmem_core ret 0xc02c4000
 0xc02c4000 __alloc_bootmem_core ret 0xc02c5000
 0xc02c5000 __alloc_bootmem_core ret 0xc02c6000
 0xc02c6000 __alloc_bootmem_core ret 0xc02c7000
 0xc02c7000 __alloc_bootmem_core ret 0xc02c8000
 0xc02c8000 __alloc_bootmem_core ret 0xc02c9000
 0xc02c9000 __alloc_bootmem_core ret 0xc02ca000
 0xc02ca000 __alloc_bootmem_core ret 0xc02cb000
 0xc02cb000 __alloc_bootmem_core ret 0xc02cc000
 0xc02cc000 __alloc_bootmem_core ret 0xc02cd000
 0xc02cd000 __alloc_bootmem_core ret 0xc02ce000
 0xc02ce000 __alloc_bootmem_core ret 0xc02cf000
 0xc02cf000 __alloc_bootmem_core ret 0xc02d0000
 0xc02d0000 __alloc_bootmem_core ret 0xc02d1000
 0xc02d1000 __alloc_bootmem_core ret 0xc02d2000
 0xc02d2000 __alloc_bootmem_core ret 0xc02d3000
 0xc02d3000 __alloc_bootmem_core ret 0xc02d4000
 0xc02d4000 __alloc_bootmem_core ret 0xc02d5000
 0xc02d5000 __alloc_bootmem_core ret 0xc02d6000
 0xc02d6000 __alloc_bootmem_core ret 0xc02d7000
 0xc02d7000 __alloc_bootmem_core ret 0xc02d8000
 0xc02d8000 __alloc_bootmem_core ret 0xc02d9000
 0xc02d9000 __alloc_bootmem_core ret 0xc02da000
 0xc02da000 __alloc_bootmem_core ret 0xc02db000
 0xc02db000 __alloc_bootmem_core ret 0xc02dc000
 0xc02dc000 __alloc_bootmem_core ret 0xc02dd000
 0xc02dd000 __alloc_bootmem_core ret 0xc02de000
 0xc02de000 __alloc_bootmem_core ret 0xc02df000
 0xc02df000 __alloc_bootmem_core ret 0xc02e0000
 0xc02e0000 __alloc_bootmem_core ret 0xc02e1000
 0xc02e1000 __alloc_bootmem_core ret 0xc02e2000
 0xc02e2000 __alloc_bootmem_core ret 0xc02e3000
 0xc02e3000 __alloc_bootmem_core ret 0xc02e4000
 0xc02e4000 __alloc_bootmem_core ret 0xc02e5000
 0xc02e5000 __alloc_bootmem_core ret 0xc02e6000
 0xc02e6000 __alloc_bootmem_core ret 0xc02e7000
 0xc02e7000 __alloc_bootmem_core ret 0xc02e8000
 0xc02e8000 __alloc_bootmem_core ret 0xc02e9000
 0xc02e9000 __alloc_bootmem_core ret 0xc02ea000
 0xc02ea000 __alloc_bootmem_core ret 0xc02eb000
 0xc02eb000 __alloc_bootmem_core ret 0xc02ec000
 0xc02ec000 __alloc_bootmem_core ret 0xc02ed000
 0xc02ed000 __alloc_bootmem_core ret 0xc02ee000
 0xc02ee000 __alloc_bootmem_core ret 0xc02ef000
 0xc02ef000 __alloc_bootmem_core ret 0xc02f0000
 0xc02f0000 __alloc_bootmem_core ret 0xc02f1000
 0xc02f1000 __alloc_bootmem_core ret 0xc02f2000
 0xc02f2000 __alloc_bootmem_core ret 0xc02f3000
 0xc02f3000 __alloc_bootmem_core ret 0xc02f4000
 0xc02f4000 __alloc_bootmem_core ret 0xc02f5000
 0xc02f5000 __alloc_bootmem_core ret 0xc02f6000
 0xc02f6000 __alloc_bootmem_core ret 0xc02f7000
 0xc02f7000 __alloc_bootmem_core ret 0xc02f8000
 0xc02f8000 __alloc_bootmem_core ret 0xc02f9000
 0xc02f9000 __alloc_bootmem_core ret 0xc02fa000
 0xc02fa000 __alloc_bootmem_core ret 0xc02fb000
 0xc02fb000 __alloc_bootmem_core ret 0xc02fc000
 0xc02fc000 __alloc_bootmem_core ret 0xc02fd000
 0xc02fd000 __alloc_bootmem_core ret 0xc02fe000
 0xc02fe000 __alloc_bootmem_core ret 0xc02ff000
 0xc02ff000 __alloc_bootmem_core ret 0xc0300000
 0xc0300000 __alloc_bootmem_core ret 0xc0301000
 0xc0301000 __alloc_bootmem_core ret 0xc0302000
 0xc0302000 __alloc_bootmem_core ret 0xc0303000
 0xc0303000 __alloc_bootmem_core ret 0xc0304000
 0xc0304000 __alloc_bootmem_core ret 0xc0305000
 0xc0305000 __alloc_bootmem_core ret 0xc0306000
 0xc0306000 __alloc_bootmem_core ret 0xc0307000
 0xc0307000 __alloc_bootmem_core ret 0xc0308000
 0xc0308000 __alloc_bootmem_core ret 0xc0309000
 0xc0309000 __alloc_bootmem_core ret 0xc030a000
 0xc030a000 __alloc_bootmem_core ret 0xc030b000
 0xc030b000 __alloc_bootmem_core ret 0xc030c000
 0xc030c000 __alloc_bootmem_core ret 0xc030d000
 0xc030d000 __alloc_bootmem_core ret 0xc030e000
 0xc030e000 __alloc_bootmem_core ret 0xc030f000
 0xc030f000 __alloc_bootmem_core ret 0xc0310000
 0xc0310000 __alloc_bootmem_core ret 0xc0311000
 0xc0311000 __alloc_bootmem_core ret 0xc0312000
 0xc0312000 __alloc_bootmem_core ret 0xc0313000
 0xc0313000 __alloc_bootmem_core ret 0xc0314000
 0xc0314000 __alloc_bootmem_core ret 0xc0315000
 0xc0315000 __alloc_bootmem_core ret 0xc0316000
 0xc0316000 __alloc_bootmem_core ret 0xc0317000
 0xc0317000 __alloc_bootmem_core ret 0xc0318000
 0xc0318000 __alloc_bootmem_core ret 0xc0319000
 0xc0319000 __alloc_bootmem_core ret 0xc031a000
 0xc031a000 __alloc_bootmem_core ret 0xc031b000
 0xc031b000 __alloc_bootmem_core ret 0xc031c000
 0xc031c000 __alloc_bootmem_core ret 0xc031d000
 0xc031d000 __alloc_bootmem_core ret 0xc031e000
 0xc031e000 __alloc_bootmem_core ret 0xc031f000
 0xc031f000 __alloc_bootmem_core ret 0xc0320000
 0xc0320000 __alloc_bootmem_core ret 0xc0321000
 0xc0321000 __alloc_bootmem_core ret 0xc0322000
 0xc0322000 __alloc_bootmem_core ret 0xc0323000
 0xc0323000 __alloc_bootmem_core ret 0xc0324000
 0xc0324000 __alloc_bootmem_core ret 0xc0325000
 0xc0325000 __alloc_bootmem_core ret 0xc0326000
 0xc0326000 __alloc_bootmem_core ret 0xc0327000
 0xc0327000 __alloc_bootmem_core ret 0xc0328000
 0xc0328000 __alloc_bootmem_core ret 0xc0329000
 0xc0329000 __alloc_bootmem_core ret 0xc032a000
 0xc032a000 __alloc_bootmem_core ret 0xc032b000
 0xc032b000 __alloc_bootmem_core ret 0xc032c000
 0xc032c000 __alloc_bootmem_core ret 0xc032d000
 0xc032d000 __alloc_bootmem_core ret 0xc032e000
 0xc032e000 __alloc_bootmem_core ret 0xc032f000
 0xc032f000 __alloc_bootmem_core ret 0xc0330000
 0xc0330000 __alloc_bootmem_core ret 0xc0331000
 0xc0331000 __alloc_bootmem_core ret 0xc0332000
 0xc0332000 __alloc_bootmem_core ret 0xc0333000
 0xc0333000 __alloc_bootmem_core ret 0xc0334000
 0xc0334000 __alloc_bootmem_core ret 0xc0335000
 0xc0335000 __alloc_bootmem_core ret 0xc0336000
 0xc0336000 __alloc_bootmem_core ret 0xc0337000
 0xc0337000 __alloc_bootmem_core ret 0xc0338000
 0xc0338000 __alloc_bootmem_core ret 0xc0339000
 0xc0339000 __alloc_bootmem_core ret 0xc033a000
 0xc033a000 __alloc_bootmem_core ret 0xc033b000
 0xc033b000 __alloc_bootmem_core ret 0xc033c000
 0xc033c000 __alloc_bootmem_core ret 0xc033d000
 0xc033d000 __alloc_bootmem_core ret 0xc033e000
 0xc033e000 __alloc_bootmem_core ret 0xc033f000
 0xc033f000 __alloc_bootmem_core ret 0xc0340000
 0xc0340000 __alloc_bootmem_core ret 0xc0341000
 0xc0341000 __alloc_bootmem_core ret 0xc0342000
 0xc0342000 __alloc_bootmem_core ret 0xc0343000
 0xc0343000 __alloc_bootmem_core ret 0xc0344000
 0xc0344000 __alloc_bootmem_core ret 0xc0345000
 0xc0345000 __alloc_bootmem_core ret 0xc0346000
 0xc0346000 __alloc_bootmem_core ret 0xc0347000
 0xc0347000 __alloc_bootmem_core ret 0xc0348000
 0xc0348000 __alloc_bootmem_core ret 0xc0349000
 0xc0349000 __alloc_bootmem_core ret 0xc034a000
 0xc034a000 __alloc_bootmem_core ret 0xc034b000
 0xc034b000 __alloc_bootmem_core ret 0xc034c000
 0xc034c000 __alloc_bootmem_core ret 0xc034d000
 0xc034d000 __alloc_bootmem_core ret 0xc034e000
 0xc034e000 __alloc_bootmem_core ret 0xc034f000
 0xc034f000 __alloc_bootmem_core ret 0xc0350000
 0xc0350000 __alloc_bootmem_core ret 0xc0351000
 0xc0351000 __alloc_bootmem_core ret 0xc0352000
 0xc0352000 __alloc_bootmem_core ret 0xc0353000
 0xc0353000 __alloc_bootmem_core ret 0xc0354000
 0xc0354000 __alloc_bootmem_core ret 0xc0355000
 0xc0355000 __alloc_bootmem_core ret 0xc0356000
 0xc0356000 __alloc_bootmem_core ret 0xc0357000
 0xc0357000 __alloc_bootmem_core ret 0xc0358000
 0xc0358000 __alloc_bootmem_core ret 0xc0359000
 0xc0359000 __alloc_bootmem_core ret 0xc035a000
 0xc035a000 __alloc_bootmem_core ret 0xc035b000
 0xc035b000 __alloc_bootmem_core ret 0xc035c000
 0xc035c000 __alloc_bootmem_core ret 0xc035d000
 0xc035d000 __alloc_bootmem_core ret 0xc035e000
 0xc035e000 __alloc_bootmem_core ret 0xc035f000
 0xc035f000 __alloc_bootmem_core ret 0xc0360000
 0xc0360000 __alloc_bootmem_core ret 0xc0361000
 0xc0361000 __alloc_bootmem_core ret 0xc0362000
 0xc0362000 __alloc_bootmem_core ret 0xc0363000
 0xc0363000 __alloc_bootmem_core ret 0xc0364000
 0xc0364000 __alloc_bootmem_core ret 0xc0365000
 0xc0365000 __alloc_bootmem_core ret 0xc0366000
 0xc0366000 __alloc_bootmem_core ret 0xc0367000
 0xc0367000 __alloc_bootmem_core ret 0xc0368000
 0xc0368000 __alloc_bootmem_core ret 0xc0369000
 0xc0369000 __alloc_bootmem_core ret 0xc036a000
 0xc036a000 __alloc_bootmem_core ret 0xc036b000
 0xc036b000 __alloc_bootmem_core ret 0xc036c000
 0xc036c000 __alloc_bootmem_core ret 0xc036d000
 0xc036d000 __alloc_bootmem_core ret 0xc036e000
 0xc036e000 __alloc_bootmem_core ret 0xc036f000
 0xc036f000 __alloc_bootmem_core ret 0xc0370000
 0xc0370000 __alloc_bootmem_core ret 0xc0371000
 0xc0371000 __alloc_bootmem_core ret 0xc0372000
 0xc0372000 __alloc_bootmem_core ret 0xc0373000
 0xc0373000 __alloc_bootmem_core ret 0xc0374000
 0xc0374000 __alloc_bootmem_core ret 0xc0375000
 0xc0375000 __alloc_bootmem_core ret 0xc0376000
 0xc0376000 __alloc_bootmem_core ret 0xc0377000
 0xc0377000 __alloc_bootmem_core ret 0xc0378000
 0xc0378000 __alloc_bootmem_core ret 0xc0379000
 0xc0379000 __alloc_bootmem_core ret 0xc037a000
 0xc037a000 __alloc_bootmem_core ret 0xc037b000
 0xc037b000 __alloc_bootmem_core ret 0xc037c000
 0xc037c000 __alloc_bootmem_core ret 0xc037d000
 0xc037d000 __alloc_bootmem_core ret 0xc037e000
 0xc037e000 __alloc_bootmem_core ret 0xc037f000
 0xc037f000 __alloc_bootmem_core ret 0xc0380000
 0xc0380000 __alloc_bootmem_core ret 0xc0381000
 0xc0381000 __alloc_bootmem_core ret 0xc0382000
 0xc0382000 __alloc_bootmem_core ret 0xc0383000
 0xc0383000 __alloc_bootmem_core ret 0xc0384000
 0xc0384000 __alloc_bootmem_core ret 0xc0385000
 0xc0385000 __alloc_bootmem_core ret 0xc0386000
 0xc0386000 __alloc_bootmem_core ret 0xc0387000
 0xc0387000 __alloc_bootmem_core ret 0xc0388000
 0xc0388000 __alloc_bootmem_core ret 0xc0389000
 0xc0389000 __alloc_bootmem_core ret 0xc038a000
 0xc038a000 __alloc_bootmem_core ret 0xc038b000
 0xc038b000 __alloc_bootmem_core ret 0xc038c000
 0xc038c000 __alloc_bootmem_core ret 0xc038d000
 0xc038d000 __alloc_bootmem_core ret 0xc038e000
 0xc038e000 __alloc_bootmem_core ret 0xc038f000
 0xc038f000 __alloc_bootmem_core ret 0xc0390000
 0xc0390000 __alloc_bootmem_core ret 0xc0391000
 0xc0391000 __alloc_bootmem_core ret 0xc0392000
 0xc0392000 __alloc_bootmem_core ret 0xc0393000
 0xc0393000 __alloc_bootmem_core ret 0xc0394000
 0xc0394000 __alloc_bootmem_core ret 0xc0395000
 0xc0395000 __alloc_bootmem_core ret 0xc0396000
 0xc0396000 __alloc_bootmem_core ret 0xc0397000
 0xc0397000 __alloc_bootmem_core ret 0xc0398000
 0xc0398000 __alloc_bootmem_core ret 0xc0399000
 0xc0399000 __alloc_bootmem_core ret 0xc039a000
 0xc039a000 __alloc_bootmem_core ret 0xc039b000
 0xc039b000 __alloc_bootmem_core ret 0xc039c000
 0xc039c000 __alloc_bootmem_core ret 0xc039d000
 0xc039d000 __alloc_bootmem_core ret 0xc039e000
 0xc039e000 __alloc_bootmem_core ret 0xc039f000
 0xc039f000 __alloc_bootmem_core ret 0xc03a0000
 0xc03a0000 __alloc_bootmem_core ret 0xc03a1000
 0xc03a1000 __alloc_bootmem_core ret 0xc03a2000
 0xc03a2000 __alloc_bootmem_core ret 0xc03a3000
 0xc03a3000 __alloc_bootmem_core ret 0xc03a4000
 0xc03a4000 __alloc_bootmem_core ret 0xc03a5000
 0xc03a5000 __alloc_bootmem_core ret 0xc03a6000
 0xc03a6000 __alloc_bootmem_core ret 0xc03a7000
 0xc03a7000 __alloc_bootmem_core ret 0xc03a8000
 0xc03a8000 __alloc_bootmem_core ret 0xc03a9000
 0xc03a9000 __alloc_bootmem_core ret 0xc03aa000
 0xc03aa000 __alloc_bootmem_core ret 0xc03ab000
 0xc03ab000 __alloc_bootmem_core ret 0xc03ac000
 0xc03ac000 __alloc_bootmem_core ret 0xc03ad000
 0xc03ad000 __alloc_bootmem_core ret 0xc03ae000
 0xc03ae000 __alloc_bootmem_core ret 0xc03af000
 0xc03af000 __alloc_bootmem_core ret 0xc03b0000
 0xc03b0000 __alloc_bootmem_core ret 0xc03b1000
 0xc03b1000 __alloc_bootmem_core ret 0xc03b2000
c6000  0xc00c7000  0xc00c8000  0xc00c9000  0xc00ca000  0xc00cb000  0xc00cc000  0xc00cd000  0xc00ce000  0xc00cf000  0xc00d0000  0xc00d1000  0xc00d2000  0xc00d3000  0xc00d4000  0xc00d5000  0xc00d6000  0xc00d7000  0xc00d8000  0xc00d9000  0xc00da000  0xc00db000  0xc00dc000  0xc00dd000  0xc00de000  0xc00df000  0xc00e0000  0xc00e1000  0xc00e2000  0xc00e3000  0xc00e4000  0xc00e5000  0xc00e6000  0xc00e7000  0xc00e8000  0xc00e9000  0xc00ea000  0xc00eb000  0xc00ec000  0xc00ed000  0xc00ee000  0xc00ef000  0xc00f0000  0xc00f1000  0xc00f2000  0xc00f3000  0xc00f4000  0xc00f5000  0xc00f6000  0xc00f7000  0xc00f8000  0xc00f9000  0xc00fa000  0xc00fb000  0xc00fc000  0xc00fd000  0xc00fe000  0xc00ff000 
pagetable_init calling alloc_bootmem_pages()
__alloc_bootmem_core ret 0x0


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Grant Grundler wrote:

> I also noticed that we don't print a message when crippling
> the box to 128MB of physical memory. I'm going to add
> that back to make sure it's happening *before* this
> init stuff happens.

I didn't have to.


>   Available memory:             2147483648 bytes
>   Good memory required:            9527296 bytes

combined with include/asm-parisc/pdc.h:
	int    imm_max_mem;            /* bytes of mem in IMM */

and it's usage in kernel/setup.c:
	mem_max = (PAGE0->imm_max_mem > MAX_MEM ? MAX_MEM : PAGE0->imm_max_mem);

Negative numbers are smaller than the small positive numbers.
We end up not crippling to 128MB and the mm code doesn't like that.
This cost me two days to figure out since I don't know what I'm
doing here.

grant

ps. Note that Paul Bame also just fixed another nasty (==hard to find)
bug in arch/parisc/lib/milli.S...


Grant Grundler
Unix Development Lab
+1.408.447.7253


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Subject: [parisc-linux] ELF toolchain broken on HP-UX
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Ran into the next "wall". This is a heads up the toolchain built
on HP-UX doesn't build valid code for parisc-linux.  (It might be
fine for HP-UX binaries).


After ic_route_ioctl() is called, I get a "halted" message
and the following output:
...
IP-Config: Got BOOTP answer from 15.8.80.76, my address is 15.8.80.77
sba_map_single 0xc7f7f2bc -> 0x5202bc pdir 0xc7fb2900 8000000007f7f07f
sba_unmap_single iovp 0x5202bc
halted

PSW  : 000cfd0b  GR 1 : c0235800  GR 2 : c0232b94  GR 3 : c7fbc508  
GR 4 : c7fbc000  GR 5 : 00000000  GR 6 : c029a800  GR 7 : c0298800  
GR 8 : c0100000  GR 9 : c7ff0000  GR10 : 00505964  GR11 : c0299000  
GR12 : 00000000  GR13 : ffffffff  GR14 : 00000001  GR15 : f0400004  
GR16 : f00008c4  GR17 : f000017c  GR18 : f0000174  GR19 : 00000002  
GR20 : c7fbc50c  GR21 : c7fbc52c  GR22 : c7fbc51c  GR23 : 00000003  
GR24 : 0f08504c  GR25 : c7fbc508  GR26 : 0000890b  GR27 : c020e000  
GR28 : c7fbc508  GR29 : 00000001  GR30 : c7fbc740  GR31 : c01cb330  
SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000  
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  

IASQ : 00000000 00000000 IAOQ : c0283e54 c0283d98
 IIR : 00000000 ISR : c7fbc618 IOR : c7fea200
...
["halted" code isn't (a) SMP safe and (b) doesn't block all interrupts.
  I see more interrupts from tulip afterwards]

GR2 0xc0232b94 ic_route_ioctl+20
IAOQ 0xc0283e54 all_requests+43c

all_requests[] is an array of structs, not code.


>From net/ipv4/ipconfig.c:

static int __init ic_route_ioctl(unsigned int cmd, struct rtentry *arg)
{
        int res;

        mm_segment_t oldfs = get_fs();
        set_fs(get_ds());
        res = ip_rt_ioctl(cmd, arg);
        set_fs(oldfs);
        return res;
}

I put printk's in ip_rt_ioctl() and they don't show up on the console.


It seems the call to ip_rt_ioctl() branches to "IAOQ : c0283e54" and
hits a "break" instruction instead of branching to ip_rt_ioctl() code.
At first, I suspected the EXPORT_SYMBOL in:
    ./net/netsyms.c:254:EXPORT_SYMBOL(ip_rt_ioctl);

but EXPORT_SYMBOL is defined to nop.

I then disassembled vmlinux to see what's in ic_route_ioctl():
c0232b74 <ic_route_ioctl>:
c0232b74:       6b c2 3f d9     stw rp,-14(sr0,sp)
c0232b78:       6f c5 00 80     stw,ma r5,40(sr0,sp)
c0232b7c:       6b c4 3f 89     stw r4,-3c(sr0,sp)
c0232b80:       08 1e 02 44     copy sp,r4
c0232b84:       d4 80 1c 12     depwi 0,31,14,r4
c0232b88:       0c 98 10 85     ldw c(sr0,r4),r5
c0232b8c:       e8 5f 09 98     b,l c0271060 <inode_hashtable+0xe044>,rp
c0232b90:       0c 80 12 98     stw r0,c(sr0,r4)
c0232b94:       0c 85 12 98     stw r5,c(sr0,r4)
c0232b98:       4b c2 3f 59     ldw -54(sr0,sp),rp
c0232b9c:       4b c4 3f 89     ldw -3c(sr0,sp),r4
c0232ba0:       e8 40 c0 00     bv r0(rp)
c0232ba4:       4f c5 3f 81     ldw,mb -40(sr0,sp),r5

The b,l to 0xc0271060 seems rather bogus.  But I have no
clue how the toolchain makes relative or "long" calls.

Most folks seem to be building parisc-linux kernels on x86 linux boxes.
I wondered if the tool-chain gets built slightly differently under
HP-UX and may pull in misc HP-UX header files.  Willy kindly provided
me with a x86-linux built ic_route_ioctl() and it looks a bit different:

c0273b88 <ic_route_ioctl>:
c0273b88:       6b c2 3f d9     stw rp,-14(sr0,sp)
c0273b8c:       6f c5 00 80     stw,ma r5,40(sr0,sp)
c0273b90:       6b c4 3f 89     stw r4,-3c(sr0,sp)
c0273b94:       08 1e 02 44     copy sp,r4
c0273b98:       d4 80 1c 12     depwi 0,31,14,r4
c0273b9c:       0c 98 10 85     ldw c(sr0,r4),r5
c0273ba0:       0c 80 12 98     stw r0,c(sr0,r4)
c0273ba4:       e5 00 3f 8a     be,l,n fc4(sr4,r8)
c0273ba8:       0c 85 12 98     stw r5,c(sr0,r4)
c0273bac:       4b c2 3f 59     ldw -54(sr0,sp),rp
c0273bb0:       4b c4 3f 89     ldw -3c(sr0,sp),r4
c0273bb4:       e8 40 c0 00     bv r0(rp)
c0273bb8:       4f c5 3f 81     ldw,mb -40(sr0,sp),r5

This looks better to me.  (And willy wondered why the delay
slot wasn't used....major performance hole here.)

So I'm hosed until I either (a) get the equivalent tool chain
for HP-UX or (b) setup an x86 build machine locally.
It will cost me a day or two for (b). But it's more likely
to succeed than me mucking around with (a).


regards,
grant


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From: Zele Gabor <zegab@freemail.hu>
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Subject: [parisc-linux] How to attach a console to a HP9000 E45 server?
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Hi!

   We need assistance because we have the following server - a used
   one, but it is without any kind of documentation:

   a HP 9000 E45 server
   MDP MUX - what the hell it is exactly???
   a HP 700/96 terminal with serial and paralell port
   and a SCSI storage box...

   We think there is an operating system on the server, because it
   seems to boot, but we cannot connect the terminal properly, so we
   don't see anything. (Only a menu of the terminal in German language
   :(((( )

   How can we connect the terminal to the server or can we replace
   this terminal with a terminal emulator on PC?

   What does the bootp mean? We think it means that we can boot Linux over
   network with bootp/tftp?

   Thanx

        Gabor Zele



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From: "Gyula Matics" <gyula_matics@hp.com>
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Subject: Re: [parisc-linux] How to attach a console to a HP9000 E45 server?
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Szia,

>    a HP 9000 E45 server

oreg joszag. 7100LC 80Mhz, ha jol latom LASI van benne,
jo esely van arra, hogy mar a mostani kernel is tud
vele valamit kezdeni.

>    MDP MUX - what the hell it is exactly???

valoszinuleg egy olyan szerkezet, aminek az egyik vegen
soros portok, a masikon meg halozat van.

>    a HP 700/96 terminal with serial and paralell port

a leggyakrabban hasznalt sima soros terminal. A Data
feliratu portjat kell hasznalni (szeles soros port)

>    and a SCSI storage box...

ha az osszes szerkezethez tudsz mondani termekszamot, akkor
megmondom, hogy pontosan mik. A1234A formatumuak szoktak
lenni a szamok.

> We think there is an operating system on the server, because it
> seems to boot, but we cannot connect the terminal properly, so we
> don't see anything. (Only a menu of the terminal in German language
> :(((( )

a terminal nyelve ha jol emlekszem atallithato. nyomd meg a user/menu
gombot, aztan F8 es valahol arrafele.

A terminalt resetelni ugy tudod, hogy bekapcsolas kozben lenyomva
tartod D betut. Marmint a terminal bekapcsolasa kozben.

>    How can we connect the terminal to the server or can we replace
>    this terminal with a terminal emulator on PC?

96008N1, mukodnie kell tetszoleges terminal emulatorral.

>    What does the bootp mean? We think it means that we can boot Linux over
>    network with bootp/tftp?

az egyfajta boot protokoll es igen, a linux kernelt most legkonyebben
boot-vel tudod elinditani a szerveren.

udv,
Gyula


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ah, sorry i didn't meant to pollute this list with
extra-terrestial text :0

Gyula



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Gyula Matics said:
> ah, sorry i didn't meant to pollute this list with
> extra-terrestial text :0
> 
> Gyula

I (for one) don't mind - something interesting to look at this fine dark
morning.  But perhaps you could supply a translation, as your responses
were no doubt useful for others on the list too?

Thanks,

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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FYI, I'm leaving on holiday.  I won't be reading my email or doing
anything parisc related until I get back on Tuesday 9th May.  Have fun.


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Talking about only pa1.1 or 32 bit CPUs, I would say the same layout
can be used as Linux on Intel does. That is kernel mapped at 0xc0000000.
So 3 Gig for User space and 1 Gig for kernel. Of course, other ppl may
have different ideas. 

PA has this strange concept of Spaces and they have those 
space registers %sr0 to %sr7. This reminds me of Intel's segment 
registers. And whoever wanted to do any serious OS like Unix on 80386
never liked segments.

					pkd 

On Wed, 17 Mar 1999, Mike Shaver wrote:

> rd.c:467: `KERNEL_DS' undeclared (first use in this function)
> mmap.c:361: `TASK_UNMAPPED_BASE' undeclared (first use in this function)
> 
> It sorta begs the question: what is our memory layout going to look
> like?  What goes where?  I'll pore over my PA-RISC book tonight looking
> for clues, but I doubt that'll be enough.
> 
> What kind of memory layout does HP-UX use, if I might be so bold as to
> ask?
> 
> Mike
> 


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From: "Gyula Matics" <gyula_matics@hp.com>
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Subject: Re: [parisc-linux] How to attach a console to a HP9000 E45 server?
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> But perhaps you could supply a translation, as your responses

OK, here is your chance to learn Hungarian.

> Szia,

Hi,

> >    a HP 9000 E45 server
> oreg joszag. 7100LC 80Mhz, ha jol latom LASI van benne,
> jo esely van arra, hogy mar a mostani kernel is tud
> vele valamit kezdeni.

an old beast. 7100LC 80Mhz, and if i'm correct it has
LASI so there is a pretty good chance that the current
kernel can do something with it.

> >    MDP MUX - what the hell it is exactly???
> valoszinuleg egy olyan szerkezet, aminek az egyik vegen
> soros portok, a masikon meg halozat van.

it's a thing with serial lines on one end and probably
lan on the other.

> >    a HP 700/96 terminal with serial and paralell port
> a leggyakrabban hasznalt sima soros terminal. A Data
> feliratu portjat kell hasznalni (szeles soros port)

it's the most commonly used simple serial terminal. You
need to use the prot labelled 'Data' to connect to the
server.

> >    and a SCSI storage box...
> ha az osszes szerkezethez tudsz mondani termekszamot, akkor
> megmondom, hogy pontosan mik. A1234A formatumuak szoktak
> lenni a szamok.

if you can tell me the product numbers for all of your thing
then i can probably tell you what they are. The product numbers
are usually in the A1234A format.

> > We think there is an operating system on the server, because it
> > seems to boot, but we cannot connect the terminal properly, so we
> > don't see anything. (Only a menu of the terminal in German language
> > :(((( )
> a terminal nyelve ha jol emlekszem atallithato. nyomd meg a user/menu
> gombot, aztan F8 es valahol arrafele.

IIRC the language of the terminal can be changed. press the user/menu
button the F8, then whatever seems appropriate.

> A terminalt resetelni ugy tudod, hogy bekapcsolas kozben lenyomva
> tartod D betut. Marmint a terminal bekapcsolasa kozben.

you can reset the terminal by holding down D while turning on it.
I mean while turning on the terminal.

> >    How can we connect the terminal to the server or can we replace
> >    this terminal with a terminal emulator on PC?
> 96008N1, mukodnie kell tetszoleges terminal emulatorral.

it should work with any terminal emulator, the format is 9600N1

> >    What does the bootp mean? We think it means that we can boot Linux
over
> >    network with bootp/tftp?
> az egyfajta boot protokoll es igen, a linux kernelt most legkonyebben
> boot-vel tudod elinditani a szerveren.

that is a kind of boot protocoll and yes this is the easiest
way to boot the linux kernel currently.

Gyula


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From: "Bas Valkema" <bvalkema@knowhowww.nl>
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Subject: Re: Mux for E35
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This is a multi-part message in MIME format.

------=_NextPart_000_002B_01BFB047.49BAD1D0
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	charset="iso-8859-1"
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hi,

I read someone needs Muxes for E35??? I do have a couple of those things =
gathering dust...

Interested? Mail....

bvalkema@knowhowww.nl
Bas Valkema

------=_NextPart_000_002B_01BFB047.49BAD1D0
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	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2314.1000" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>hi,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I read someone needs Muxes for E35??? I =
do have a=20
couple of those things gathering dust...</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Interested? Mail....</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><A=20
href=3D"mailto:bvalkema@knowhowww.nl">bvalkema@knowhowww.nl</A></FONT></D=
IV>
<DIV><FONT face=3DArial size=3D2>Bas Valkema</FONT></DIV></BODY></HTML>

------=_NextPart_000_002B_01BFB047.49BAD1D0--


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Hi all,

I'm trying to get builds working on a new x86 box.
I've built/installed binutils and gcc (--prefix=/opt/puffin).
I'm able to build linux-2.3 kernels but palo dies with:
make[1]: Leaving directory `/linux/grundler/palo/palo'
cd ipl && make
make[1]: Entering directory `/linux/grundler/palo/ipl'
hppa1.1-linux-gcc -D__ASSEMBLY__  -traditional -c -o crt0.o crt0.S
crt0.S: Assembler messages:
crt0.S:4: Error: Unknown opcode: `execution'
crt0.S:6: Error: Unknown opcode: `we'
crt0.S:8: Fatal error: Unknown opcode: `$start$(interactive, endaddr)'
make[1]: *** [crt0.o] Error 1
make[1]: Leaving directory `/linux/grundler/palo/ipl'
make: *** [makeipl] Error 2

It seems the assembler is not interpreting the ';' as comments.
Is the crt0.S broken or my assembler?

thanks,
grant

ps. paul: my source is on hpisp747:/linux/grundler . I updated/copied
   the CVS sources over from my existing HP-UX build machine.


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Grant Grundler wrote:
> Hi all,
> 
> I'm trying to get builds working on a new x86 box.
> I've built/installed binutils and gcc (--prefix=/opt/puffin).
> I'm able to build linux-2.3 kernels but palo dies with:
...

ok. My goof. palo directory wasn't up-to-date.

grant


Grant Grundler
Unix Development Lab
+1.408.447.7253


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Subject: Re: [parisc-linux] ELF toolchain broken on HP-UX
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Grant Grundler wrote:
> Ran into the next "wall". This is a heads up the toolchain built
> on HP-UX doesn't build valid code for parisc-linux.  (It might be
> fine for HP-UX binaries).
> 
> After ic_route_ioctl() is called, I get a "halted" message
> and the following output:
...
> GR2 0xc0232b94 ic_route_ioctl+20
> IAOQ 0xc0283e54 all_requests+43c

So I spent most of last week setting up an x86 build machine
only to find the kernels built on the "i386-linux" host
die in the same way. Something is wrong with build env.
I just be me. But maybe not.  I'll try to find out ASAP.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Subject: Re: [parisc-linux] elf32-parisc linker broken?
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Grant Grundler wrote:
> After ic_route_ioctl() is called, I get a "halted" message
> and the following output:
> ...
> IP-Config: Got BOOTP answer from 15.8.80.76, my address is 15.8.80.77
> sba_map_single 0xc7f7f2bc -> 0x5202bc pdir 0xc7fb2900 8000000007f7f07f
> sba_unmap_single iovp 0x5202bc
> halted
...
> GR2 0xc0232b94 ic_route_ioctl+20
> IAOQ 0xc0283e54 all_requests+43c
...

> I then disassembled vmlinux to see what's in ic_route_ioctl():
> c0232b74 <ic_route_ioctl>:
> c0232b74:       6b c2 3f d9     stw rp,-14(sr0,sp)
> c0232b78:       6f c5 00 80     stw,ma r5,40(sr0,sp)
> c0232b7c:       6b c4 3f 89     stw r4,-3c(sr0,sp)
> c0232b80:       08 1e 02 44     copy sp,r4
> c0232b84:       d4 80 1c 12     depwi 0,31,14,r4
> c0232b88:       0c 98 10 85     ldw c(sr0,r4),r5
> c0232b8c:       e8 5f 09 98     b,l c0271060 <inode_hashtable+0xe044>,rp
> c0232b90:       0c 80 12 98     stw r0,c(sr0,r4)
> c0232b94:       0c 85 12 98     stw r5,c(sr0,r4)
> c0232b98:       4b c2 3f 59     ldw -54(sr0,sp),rp
> c0232b9c:       4b c4 3f 89     ldw -3c(sr0,sp),r4
> c0232ba0:       e8 40 c0 00     bv r0(rp)
> c0232ba4:       4f c5 3f 81     ldw,mb -40(sr0,sp),r5
> 
> The b,l to 0xc0271060 seems rather bogus.  But I have no
> clue how the toolchain makes relative or "long" calls.

The "objdump --disassemble-all vmlinux" output hasn't changed
between i386-linux and parisc-hpux host build environments.
Here is also the "-S" output for ic_route_ioctl():

        .align 4
        .type    ic_route_ioctl,@function
ic_route_ioctl:
ic_route_ioctl: 
        .PROC
        .CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=4
        .ENTRY  
        stw %r2,-20(%r30)
        stwm %r5,64(%r30)
        stw %r4,-60(%r30)
#APP 
        copy 30,%r4
#NO_APP
        depi 0,31,14,%r4
        ldw 12(%r4),%r5
        .CALL ARGW0=GR,ARGW1=GR
        bl ip_rt_ioctl,%r2
        stw %r0,12(%r4)
        stw %r5,12(%r4)
        ldw -84(%r30),%r2
        ldw -60(%r30),%r4
        bv %r0(%r2)
        ldwm -64(%r30),%r5
        .EXIT
        .PROCEND
.Lfe4:
        .size    ic_route_ioctl,.Lfe4-ic_route_ioctl


This looks fine to me.
And "objdump --disassemble-all ipconfig.o" for ic_route_ioctl():

00000334 <ic_route_ioctl>:
     334:       6b c2 3f d9     stw rp,-14(sr0,sp)
     338:       6f c5 00 80     stw,ma r5,40(sr0,sp)
     33c:       6b c4 3f 89     stw r4,-3c(sr0,sp)
     340:       08 1e 02 44     copy sp,r4
     344:       d4 80 1c 12     depwi 0,31,14,r4
     348:       0c 98 10 85     ldw c(sr0,r4),r5
     34c:       e8 40 00 00     b,l 354 <ic_route_ioctl+0x20>,rp
     350:       0c 80 12 98     stw r0,c(sr0,r4)
     354:       0c 85 12 98     stw r5,c(sr0,r4)
     358:       4b c2 3f 59     ldw -54(sr0,sp),rp
     35c:       4b c4 3f 89     ldw -3c(sr0,sp),r4
     360:       e8 40 c0 00     bv r0(rp)
     364:       4f c5 3f 81     ldw,mb -40(sr0,sp),r5

This looks OK assuming the actualy branch destination gets fixed
up at link time.  Could this be a linker bug?
If so, where might I start to debug this?
(I've never looked the linker before)

thanks,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Subject: [parisc-linux] crti.S Nested procedures error
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Sammy,

I tried the "glibc" recipe on my x86 box (running Debian potato release).
(http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/04-Apr/0059.html)

"make" died with the following error:

...
hppa1.1-linux-gcc /linux/grundler/glibc/hppa1.1-linux/csu/crti.S -c  -I../include -I. -I/linux/grundler/glibc/hppa1.1-linux/csu -I.. -I../libio  -I/linux/grundler/glibc/hppa1.1-linux -I../sysdeps/hppa/elf -I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic  -nostdinc -isystem /opt/puffin/lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/include -isystem /opt/puffin/include  -include ../include/libc-sym
 bols.h     -DHAVE_INITFINI -DASSEMBLER  -I/linux/grundler/glibc/hppa1.1-linux/csu/.  -g0  -o /linux/grundler/glibc/hppa1.1-linux/csu/crti.o

bc-symbols.h     -DHAVE_INITFINI -DASSEMBLER  -I/linux/grundler/glibc/hppa1.1-linux/csu/.  -g0  -o /linux/grundler/glibc/hppa1.1-linux/csu/crti.o
/linux/grundler/glibc/hppa1.1-linux/csu/crti.S: Assembler messages:
/linux/grundler/glibc/hppa1.1-linux/csu/crti.S:42: Fatal error: Nested procedures
make[2]: *** [/linux/grundler/glibc/hppa1.1-linux/csu/crti.o] Error 1
make[2]: Leaving directory `/linux/grundler/glibc/csu'
make[1]: *** [csu/subdir_lib] Error 2


Sure enough, two .PROC's have no .PROCEND in between.
glibc/csu/Makefile builds crti.S with:

$(objpfx)crti.S: $(objpfx)initfini.s
        sed -n -e '1,/@HEADER_ENDS/p' \
               -e '/@_.*_PROLOG_BEGINS/,/@_.*_PROLOG_ENDS/p' \
               -e '/@TRAILER_BEGINS/,$$p' $< > $@ 


It seems either the initfini.s contents are wrong or the "sed" hack
above is removing too much.  Which is it?
Or should there only be one .PROC?

We get two .PROC's because initfini.s has both @_init_PROLOG_BEGINS/ENDS
and @_fini_PROLOG_BEGINS/ENDS. 

Appended "diff -u initfini.s crti.S" shows what sed is doing.

thanks,
grant


grundler <576>diff -u initfini.s crti.S
--- initfini.s  Mon May  1 11:09:43 2000
+++ crti.S      Mon May  1 11:20:48 2000
@@ -6,38 +6,6 @@
 #include "defs.h"
 
 /*@HEADER_ENDS*/
-
-/*@TESTS_BEGIN*/
-#NO_APP
-       .text
-       .align 4
-.globl dummy
-       .EXPORT dummy,ENTRY
-       .type    dummy,@function
-dummy:
-dummy:
-       .PROC
-       .CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=3
-       .ENTRY
-       stw %r2,-20(%r30)
-       ldo 64(%r30),%r30
-       stw %r19,-32(%r30)
-       stw %r4,-64(%r30)
-       movb,= %r26,%r22,.L16
-       copy %r19,%r4
-       .CALL   ARGW0=GR
-       bl $$dyncall,%r31
-       copy %r31,%r2
-.L16:
-       ldw -84(%r30),%r2
-       bv %r0(%r2)
-       ldwm -64(%r30),%r4
-       .EXIT
-       .PROCEND
-#APP
-
-/*@TESTS_END*/
-
 /*@_init_PROLOG_BEGINS*/
        .section .init
 #NO_APP
@@ -62,35 +30,6 @@
        END_INIT
 
 /*@_init_PROLOG_ENDS*/
-
-/*@_init_EPILOG_BEGINS*/
-       .section .init
-#NO_APP
-       ldw -84(%r30),%r2
-       bv %r0(%r2)
-       ldwm -64(%r30),%r4
-       .EXIT
-       .PROCEND
-#APP
-       END_INIT
-       .section .text
-#NO_APP
-       .align 4
-       .weak   __gmon_start__
-       .EXPORT __gmon_start__,ENTRY
-       .type    __gmon_start__,@function
-__gmon_start__:
-__gmon_start__:
-       .PROC
-       .CALLINFO FRAME=0,NO_CALLS
-       .ENTRY
-       bv,n %r0(%r2)
-       .EXIT
-       .PROCEND
-#APP
-
-/*@_init_EPILOG_ENDS*/
-
 /*@_fini_PROLOG_BEGINS*/
        .section .fini
 #NO_APP
@@ -113,24 +52,5 @@
        END_FINI
 
 /*@_fini_PROLOG_ENDS*/
-#NO_APP
-       .CALL 
-       bl i_am_not_a_leaf,%r2
-       nop
-#APP
-
-/*@_fini_EPILOG_BEGINS*/
-       .section .fini
-#NO_APP
-       ldw -84(%r30),%r2
-       bv %r0(%r2)
-       ldwm -64(%r30),%r4
-       .EXIT
-       .PROCEND
-#APP
-       END_FINI
-
-/*@_fini_EPILOG_ENDS*/

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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] crt0.S does not build
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> I'm trying to get builds working on a new x86 box.
> I've built/installed binutils and gcc (--prefix=/opt/puffin).
> I'm able to build linux-2.3 kernels but palo dies with:
> make[1]: Leaving directory `/linux/grundler/palo/palo'
> cd ipl && make
> make[1]: Entering directory `/linux/grundler/palo/ipl'
> hppa1.1-linux-gcc -D__ASSEMBLY__  -traditional -c -o crt0.o crt0.S
> crt0.S: Assembler messages:
> crt0.S:4: Error: Unknown opcode: `execution'
> crt0.S:6: Error: Unknown opcode: `we'
> crt0.S:8: Fatal error: Unknown opcode: `$start$(interactive, endaddr)'
> make[1]: *** [crt0.o] Error 1
> make[1]: Leaving directory `/linux/grundler/palo/ipl'
> make: *** [makeipl] Error 2
> 
> It seems the assembler is not interpreting the ';' as comments.
> Is the crt0.S broken or my assembler?

Don't you mean "not interpreting `!' as comments"?  At least my copy of
palo uses `!' as the comment char, and current puffin parisc binutils also
use `!' to start a comment.

Can you check which assembler gcc is picking up by adding -v to the gcc
command line above?

-- 
Linuxcare.  Support for the Revolution.




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] Broken link in FAQ
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Hi,
  <http://thepuffingroup.com/parisc/faq.html> links to the NFS-Root-HOWTO
as <http://puffin.external.hp.com/mailing-lists/parisc-linux/1635.html>
but I think that should now be

<http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/02-Feb/0069.html>

Richard


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Subject: Re: [parisc-linux] Broken link in FAQ
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Xref: news.gmane.org gmane.linux.ports.parisc:7241

On Tue, May 02, 2000 at 01:10:29PM +0100, Richard Hirst wrote:
> Hi,
>   <http://thepuffingroup.com/parisc/faq.html> links to the NFS-Root-HOWTO
> as <http://puffin.external.hp.com/mailing-lists/parisc-linux/1635.html>
> but I think that should now be
> 
> <http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/02-Feb/0069.html>

The website is in CVS -- `cvs co website' gives you a copy.  I encourage
anyone who finds a broken link, typo, or other similar mistake to simply
correct it themselves.  I haven't yet been sufficiently lazy to make
the website auto-update when people check in fixes so you'll have to
wait for someone with access to the TPG website to update it.

thanks for finding the problem.


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From: Mike Shaver <shaver@netscape.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] memory layout
Date: Thu, 18 Mar 1999 00:55:53 -0500
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Kumar wrote:
> 
> Talking about only pa1.1 or 32 bit CPUs, I would say the same layout
> can be used as Linux on Intel does. That is kernel mapped at 0xc0000000.
> So 3 Gig for User space and 1 Gig for kernel. Of course, other ppl may
> have different ideas.

OpenBSD has the same idea, it seems.  From
sys/arch/hppa/include/vmparam.h:

/* user/kernel map constants */
#define VM_MIN_ADDRESS          ((vm_offset_t)0)
#define VM_MAXUSER_ADDRESS      ((vm_offset_t)0xc0000000)
#define VM_MAX_ADDRESS          VM_MAXUSER_ADDRESS
#define VM_MIN_KERNEL_ADDRESS   ((vm_offset_t)0)
#define VM_MAX_KERNEL_ADDRESS   ((vm_offset_t)0xF0000000)

I'll start filling in the x86 numbers blindly, I guess.

> PA has this strange concept of Spaces and they have those
> space registers %sr0 to %sr7. This reminds me of Intel's segment
> registers. And whoever wanted to do any serious OS like Unix on 80386
> never liked segments.

Yeah, I've been trying to figure out whether we should do anything
special with those, but I don't quite understand the whole architecture
yet.

Mike

-- 
311774.80 264634.54


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since it transpired that martin was unaware that i'd moved to canada and
paying my flight from canada wasn't really in his budget, i'm forwarding
this to this list.  anyone in germany want to help out on the booth?

----- Forwarded message from Martin Schulze <joey@linuxtag.de> -----

Delivered-To: thepuffi-willy@thepuffingroup.com
Date: Sat, 29 Apr 2000 01:44:01 +0200
From: Martin Schulze <joey@linuxtag.de>
To: willy@thepuffingroup.com
Subject: Invitation for LinuxTag 2000
User-Agent: Mutt/1.0i
In-Reply-To: <20000426165753.Q24092@thepuffingroup.com>; from willy@thepuffingroup.com on Wed, Apr 26, 2000 at 04:57:53PM -0400

Hi Willy!

In case you're interested in staffing a booth at LinuxTag 2000 (June 29th
- July 2nd, Stuttgart), dump me a line.  We're organizing a "Linux-Ports"
booth where no pa-risc box is currently.  LinuxTag can be viewed at
www.linuxtag.org

Regards,

	Joey
	LinuxTag 2000 Team

-- 
The MS-DOS filesystem is nice for removable media.  -- H. Peter Anvin

----- End forwarded message -----


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From: Frank Benke <frank.benke@web.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [joey@linuxtag.de: Invitation for LinuxTag 2000]
Date: Tue, 02 May 2000 18:31:12 +0200
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        Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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hi all;

since hp germany is present at the show and thomas and will be there anyway, i "guess" we will manage to have a box there. but
since we will be busy at the hp booth it might be usefull if some more "staff" will be there.

regards frank

willy@thepuffingroup.com schrieb:

> since it transpired that martin was unaware that i'd moved to canada and
> paying my flight from canada wasn't really in his budget, i'm forwarding
> this to this list.  anyone in germany want to help out on the booth?
>
> ----- Forwarded message from Martin Schulze <joey@linuxtag.de> -----
>
> Delivered-To: thepuffi-willy@thepuffingroup.com
> Date: Sat, 29 Apr 2000 01:44:01 +0200
> From: Martin Schulze <joey@linuxtag.de>
> To: willy@thepuffingroup.com
> Subject: Invitation for LinuxTag 2000
> User-Agent: Mutt/1.0i
> In-Reply-To: <20000426165753.Q24092@thepuffingroup.com>; from willy@thepuffingroup.com on Wed, Apr 26, 2000 at 04:57:53PM -0400
>
> Hi Willy!
>
> In case you're interested in staffing a booth at LinuxTag 2000 (June 29th
> - July 2nd, Stuttgart), dump me a line.  We're organizing a "Linux-Ports"
> booth where no pa-risc box is currently.  LinuxTag can be viewed at
> www.linuxtag.org
>
> Regards,
>
>         Joey
>         LinuxTag 2000 Team
>
> --
> The MS-DOS filesystem is nice for removable media.  -- H. Peter Anvin
>
> ----- End forwarded message -----
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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On Mon, 1 May 2000, Grant Grundler wrote:

> Sammy,
> 
> I tried the "glibc" recipe on my x86 box (running Debian potato release).
> (http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/04-Apr/0059.html)
> 
> "make" died with the following error:
> 
> ...
> hppa1.1-linux-gcc /linux/grundler/glibc/hppa1.1-linux/csu/crti.S -c  -I../include -I. -I/linux/grundler/glibc/hppa1.1-linux/csu -I.. -I../libio  -I/linux/grundler/glibc/hppa1.1-linux -I../sysdeps/hppa/elf -I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic  -nostdinc -isystem /opt/puffin/lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/include -isystem /opt/puffin/include  -include ../include/libc-s
 ymbols.h     -DHAVE_INITFINI -DASSEMBLER  -I/linux/grundler/glibc/hppa1.1-linux/csu/.  -g0  -o /linux/grundler/glibc/hppa1.1-linux/csu/crti.o
> 
> bc-symbols.h     -DHAVE_INITFINI -DASSEMBLER  -I/linux/grundler/glibc/hppa1.1-linux/csu/.  -g0  -o /linux/grundler/glibc/hppa1.1-linux/csu/crti.o
> /linux/grundler/glibc/hppa1.1-linux/csu/crti.S: Assembler messages:
> /linux/grundler/glibc/hppa1.1-linux/csu/crti.S:42: Fatal error: Nested procedures
> make[2]: *** [/linux/grundler/glibc/hppa1.1-linux/csu/crti.o] Error 1
> make[2]: Leaving directory `/linux/grundler/glibc/csu'
> make[1]: *** [csu/subdir_lib] Error 2
> 
> 
> Sure enough, two .PROC's have no .PROCEND in between.
> glibc/csu/Makefile builds crti.S with:
> 
> $(objpfx)crti.S: $(objpfx)initfini.s
>         sed -n -e '1,/@HEADER_ENDS/p' \
>                -e '/@_.*_PROLOG_BEGINS/,/@_.*_PROLOG_ENDS/p' \
>                -e '/@TRAILER_BEGINS/,$$p' $< > $@ 
> 
> 
> It seems either the initfini.s contents are wrong or the "sed" hack
> above is removing too much.  Which is it?
> Or should there only be one .PROC?
> 
> We get two .PROC's because initfini.s has both @_init_PROLOG_BEGINS/ENDS
> and @_fini_PROLOG_BEGINS/ENDS. 
> 
> Appended "diff -u initfini.s crti.S" shows what sed is doing.
> 
> thanks,
> grant

ok, for a while I was dealing with this by simply hacking up initfini.s by
hand, but that wasn't necessary last time I built.  I think this is
related to the fact that somebody had taken out .proc/.procend from the
assembler entirely (well, ignored them  on ELF targets).  I think this was
a bad idea (if I remember tc-hppa.c from gas, it depends on these to build
some of the global symbol information?  It did something even on an elf
target).

We might need our own magic sed script for parisc.

Lemme think about this properly, I just woke up and am expected at work.

-- Sam



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Subject: Re: [parisc-linux] crti.S Nested procedures error
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To: Sam Creasey <sammy@sammy.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:7246

On Wed, May 03, 2000 at 10:18:54AM -0400, Sam Creasey wrote:
> ok, for a while I was dealing with this by simply hacking up initfini.s by
> hand, but that wasn't necessary last time I built.  I think this is
> related to the fact that somebody had taken out .proc/.procend from the
> assembler entirely (well, ignored them  on ELF targets).  I think this was
> a bad idea (if I remember tc-hppa.c from gas, it depends on these to build
> some of the global symbol information?  It did something even on an elf
> target).

it was a bad idea, it broke other things.  i suspect the right thing
to do is move some of the global symbol information-building code
which is currently invoked upon seeing a .proc or .procend to simply
seeing a non-local label, like the other assemblers do.  i don't see why
linux/elf/pa-risc needs anything special in this regard.  Alan (Modra),
do you have any comments?

> We might need our own magic sed script for parisc.

i'd prefer not to..


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Subject: Re: [parisc-linux] crti.S Nested procedures error
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To: willy@thepuffingroup.com
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Xref: news.gmane.org gmane.linux.ports.parisc:7247

On Wed, 3 May 2000 willy@thepuffingroup.com wrote:

> On Wed, May 03, 2000 at 10:18:54AM -0400, Sam Creasey wrote:
> > ok, for a while I was dealing with this by simply hacking up initfini.s by
> > hand, but that wasn't necessary last time I built.  I think this is
> > related to the fact that somebody had taken out .proc/.procend from the
> > assembler entirely (well, ignored them  on ELF targets).  I think this was
> > a bad idea (if I remember tc-hppa.c from gas, it depends on these to build
> > some of the global symbol information?  It did something even on an elf
> > target).
> 
> it was a bad idea, it broke other things.  i suspect the right thing
> to do is move some of the global symbol information-building code
> which is currently invoked upon seeing a .proc or .procend to simply
> seeing a non-local label, like the other assemblers do.  i don't see why
> linux/elf/pa-risc needs anything special in this regard.  Alan (Modra),
> do you have any comments?

Well, I'm still coming up to speed on the parisc architecture, so maybe my
comments aren't that valuable.  There are quite a lot of things I don't
like about the current set of puffin parisc patches though, and zapping
these pseudo ops is one of them.

On another issue, can someone tell me why the assembler comment character
needed to be changed from `;' to `!' ?  This seems a really ill-advised
change to me.

-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] crti.S Nested procedures error
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Xref: news.gmane.org gmane.linux.ports.parisc:7248

On Wed, 3 May 2000, Grant Grundler wrote:

> Alan Modra wrote:
> 
> > On another issue, can someone tell me why the assembler comment character
> > needed to be changed from `;' to `!' ?  This seems a really ill-advised
> > change to me.
> 
> See:
> http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/03-Mar/0078.html

Thanks for the pointer.  I agree with all these except the comment
change...  :)

-- 
Linuxcare.  Support for the Revolution.


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] crti.S Nested procedures error
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Xref: news.gmane.org gmane.linux.ports.parisc:7249


  In message <Pine.LNX.4.21.0005041047580.8334-100000@front.linuxcare.com.au>yo
u write:
  > On Wed, 3 May 2000, Grant Grundler wrote:
  > 
  > > Alan Modra wrote:
  > > 
  > > > On another issue, can someone tell me why the assembler comment charact
  > er
  > > > needed to be changed from `;' to `!' ?  This seems a really ill-advised
  > > > change to me.
  > > 
  > > See:
  > > http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/03-Mar/0078
  > .html
  > 
  > Thanks for the pointer.  I agree with all these except the comment
  > change...  :)
'!' is the standard comment character for the PA assembly syntax.

jeff


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Subject: Re: palinux binutils
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To: Paul Bame <bame@endor.fc.hp.com>
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On Wed, 3 May 2000, Paul Bame wrote:

> Alan -- we hear you're doing something with binutils for palinux but
> don't know what.  We desperately need a functional tool chain so

I checked in a bunch of patches to sourceware.cygnus.com CVS a day or so
ago.  These were only just little things I noticed while going over the
code trying to understand everything and come to grips with parisc.  I
suspect these fixes won't give you the functional tool chain you need, but
I'm working on it.  Once I've gone over bfd/elf32-hppa.c, I intend to make
everything available via CVS from the puffin machines.  It's taking longer
than I thought it would...

> I'm going to hack at it a bit but don't want to do anything stupid
> (actually with my level of knowledge of gcc, glibc, and binutils, it's
> certain I'll do *something* stupid).  Sammy may also be
> doing something soon to solve the .proc/.procend stuff (in the linker
> I think).

I'm sure I'll do many stupid things :)

-- 
Linuxcare.  Support for the Revolution.



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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] crti.S Nested procedures error
Date: Thu, 4 May 2000 11:27:37 +1000 (EST)
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On Wed, 3 May 2000, Jeffrey A Law wrote:

> '!' is the standard comment character for the PA assembly syntax.

sourceware.cygnus.com CVS gas/config/tc-hppa.c has

const char comment_chars[] = ";";
const char line_separator_chars[] = "!";

You're saying that it's a good idea to change the comment char then?

Regards, Alan Modra

-- 
Linuxcare.  Support for the Revolution.


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             <Pine.LNX.4.21.0005041123510.8334-100000@front.linuxcare.com.au> 
Xref: news.gmane.org gmane.linux.ports.parisc:7252


  In message <Pine.LNX.4.21.0005041123510.8334-100000@front.linuxcare.com.au>yo
u write:
  > On Wed, 3 May 2000, Jeffrey A Law wrote:
  > 
  > > '!' is the standard comment character for the PA assembly syntax.
  > 
  > sourceware.cygnus.com CVS gas/config/tc-hppa.c has
  > 
  > const char comment_chars[] = ";";
  > const char line_separator_chars[] = "!";
  > 
  > You're saying that it's a good idea to change the comment char then?
Whoops.  My bad.  "!" is the line separator, not the comment character.

Sometimes I wonder if I'm going senile.

jeff

ps.  One can certainly argue about whether or not "!" is a good line
separator since it's also used in expression parsing and as a completer
for FP comparisons.  Basically we've got an ambiguous grammar due to some
poor choices that were made long ago ;(

jeff


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From: Mike Shaver <shaver@netscape.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [hppa-linux] make dep
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You can run make dep now and see millions of warnings about implicitly
defined functions and such, but have it complete ``successfully''. 
Basically, I just added a handful of stubs and #defines, and then tidied
some insanity in the build system.

I'm curious as to why our dep target actually builds all the .o/.as, but
I'll look at that in the morning or something.

Mike

-- 
314982.57 267714.70


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On Tue, May 02, 2000 at 06:31:12PM +0200, Frank Benke wrote:
> hi all;
> 
> since hp germany is present at the show and thomas and will be there
> anyway, i "guess" we will manage to have a box there. but since we will
> be busy at the hp booth it might be usefull if some more "staff" will
> be there.

I will be at the booth already with Linux/mips(el) and probably i might
bring a gecko with me ... Although i am not that experienced
with PA-Risc i have booted it once with a kernel/ramdisk image and
it showed some reaction :)

Flo
-- 
Florian Lohoff		flo@rfc822.org		      	+49-subject-2-change
"Technology is a constant battle between manufacturers producing bigger and
more idiot-proof systems and nature producing bigger and better idiots."


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From: Paul Bame <bame@endor.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] SCSI works on B180 and 712
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Many thanks to ggg, robert, and prumpf, for helping me get the SCSI
driver (sim710 specifically) working on B180 (should work on A180 too)
and 712!!!  Today I mounted an ext2 partition and executed sash from
there which was pretty exciting.  Sources are in CVS, just enable SCSI
in your .config, copy something reasonable (like the ramdisk or nfsroot)
to an ext2 partition on a normal Linux disk, move the disk to your HP
box, and remember to modify the linux command line to include "root=/dev/sda5"
or whatever.  Here's a console output sample:


------- Main Menu -------------------------------------------------------------

        Command                         Description
        -------                         -----------
        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration [<command>]       Access Configuration menu/commands
        INformation [<command>]         Access Information menu/commands
        SERvice [<command>]             Access Service menu/commands

        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command > b
Interact with IPL (Y, N, Q)?> y
INIT C540

Booting... 
Network Station Address 0060b0-172441
System IP Address 15.1.49.181
Server IP Address 15.1.49.59

Boot IO Dependent Code (IODC) revision 2
INIT C580


SOFT Booted.
INIT C5FF
palo ipl bame@endor Fri May  5 12:22:50 MDT 2000
0/vmlinux 2308864 bytes @ 0x7800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/ram initrd=0/ramdisk'
0/ramdisk 358400 bytes @ 0x23b300
0/vmlinux HOME=/ TERM=LINUX root=/dev/sda5
Kernel: partition 0 file /vmlinux
ELF32 executable
prepare_loadable 00503688 2

Entry 0010192c first 00100000 n 3
Segment 0 load 00100000 size 1303732 mediaptr 0x1000
Segment 1 load 00240000 size 175884 mediaptr 0x140000
Segment 2 load 0026c000 size 8192 mediaptr 0x16b000
branching to kernel entry point 0x0010192c
The Kernel has started...
Free memory starts at: 0xc02d8000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/sda5'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00005030 00000481 00000000 02020202 7749d671 100000f0 00000004 000000ba 000000ba
vers    00000010
cpuid   000001f0
CPUID vers 15 rev 16
CPU(s): 1 x PA7300LC at 180.000000 MHz
Searching for devices in PDC firmware... a newer box...
Found devices:
1. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0, 0x0, 0x0, 0x0
2. Merlin L2+ 180 (9000/778/B180L) (0) at 0xfffbe000, versions 0x504, 0x0, 0x4, 0x0, 0x81
3. Merlin+ L2 180 (1) at 0xfffbf000, versions 0x5a, 0x0, 0x9, 0x0, 0x0
4. Merlin+ 180 Core BA (11) at 0xffd00000, versions 0x3f, 0x0, 0x81, 0x0, 0x0
5. Merlin+ 180 Core RS-232 (10) at 0xffd05000, versions 0x3f, 0x0, 0x8c, 0x0, 0x0
6. Merlin+ 180 Core SCSI (10) at 0xffd06000, versions 0x3f, 0x0, 0x82, 0x0, 0x0
7. Merlin+ 180 Core Centronics (10) at 0xffd02000, versions 0x3f, 0x0, 0x74, 0x0, 0x0
8. Merlin+ 180 Core Audio (10) at 0xffd04000, versions 0x3f, 0x4, 0x7b, 0x0, 0x0
9. Merlin+ 180 Core PC Keyboard (10) at 0xffd08000, versions 0x3f, 0x0, 0x84, 0x0, 0x0
10. Merlin+ 180 Core PC Keyboard (10) at 0xffd08100, versions 0x3f, 0x0, 0x84, 0x0, 0x0
11. Merlin+ 180 Core PC Floopy (10) at 0xffd0a000, versions 0x3f, 0x0, 0x83, 0x0, 0x0
12. Merlin 132/160 Wax BA (11) at 0xffe00000, versions 0x43, 0x0, 0x8e, 0x0, 0x0
13. Merlin 132/160 Wax EISA BA (11) at 0xfc000000, versions 0x43, 0x0, 0x90, 0x0, 0x0
14. Merlin 132/160 Wax HIL (10) at 0xffe01000, versions 0x43, 0x0, 0x73, 0x0, 0x0
15. Merlin 132/160 Wax RS-232 (10) at 0xffe02000, versions 0x43, 0x0, 0x8c, 0x0, 0x0
16. Gecko GSC Core Graphics (10) at 0xf8000000, versions 0x16, 0x0, 0x85, 0x0, 0x0
17. Dino PCI Bridge (13) at 0xfff80000, versions 0x680, 0x1, 0xa, 0x0, 0x0
That's a total of 17 devices.
Linux version 2.3.99-pre1 (bame@endor) (gcc version 2.9-hppa-991112) #93 Fri May 5 12:22:47 MDT 2000
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
trap_init
Calibrating delay loop... 116.74 BogoMIPS
Memory: 125716k available
kmem_test() - start
kmem_free: Bad front redzone (objp=c7ffe004, name=test-cachep)
kmem_free: Bad rear redzone (objp=c7ffe004, name=test-cachep)
kmem_test() - finished
c7ff0000 c7ff8000 c7fee000 c7ffc000
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
request_irq(258, c01eb470, 0x0, lasi, c7fea080)
Lasi IRQ 258 EIM 0xfffe0002
Wax at 0xffe00000 found.
request_irq(263, c01eb470, 0x0, wax, c7fea140)
Wax IRQ 263 EIM 0xfffe0007
busdevice_alloc_irq(0xffd05000) on Lasi 0x200 + 26 = 538
Found serial #0 at 0xffd05000, IRQ 538
ttyS00 at iomem 0xffd05800 (irq = 538) is a 16550A
busdevice_alloc_irq(0xffe02000) on Wax 0x300 + 25 = 793
Found serial #1 at 0xffe02000, IRQ 793
ttyS00 at iomem 0xffe02800 (irq = 793) is a 16550A
Dino version 2.1 (bridge mode) found at 0xfff80000


The GSCtoPCI (Dino hrev 1) bus converter found may exhibit
data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.
Systems shipped after Aug 20, 1997 will not exhibit this problem.
Models affected: C180, C160, C160L, B160L, and B132L workstations.

request_irq(259, c01eae24, 0x0, dino, c7fea2c0)
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
Starting kswapd v1.6
Serial driver version 4.92 (2000-1-27) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
SCSI clock: 40000000
busdevice_alloc_irq(0xffd06000) on Lasi 0x200 + 22 = 534
Lasi Scsi (53c710) found at 0xffd06100
sim710: Configuring Sim710 (SCSI-ID 7) at ffd06100, IRQ 534
scsi0: Revision 0x2
sim710: WARNING IRQ probe failed, (returned 0)
scsi0: test 1 completed ok.
request_irq(534, c01da830, 0x20000000, sim710, c7fb7260)
busdev_enable_irq(c7fea080, 22) Lasi: IMR 0x200
lasi7xx_detect is called again
scsi0 : LASI/Simple 53c710
scsi : 1 host.
  Vendor: TOSHIBA   Model: CD-ROM XM-3401TA  Rev: 1094
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 2, lun 0
  Vendor: SEAGATE   Model: ST31051N          Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 3, lun 0
scsi : detected 1 SCSI cdrom 1 SCSI disk total.
Uniform CD-ROM driver Revision: 3.07
SCSI device sda: hdwr sector= 512 bytes. Sectors= 2051460 [1001 MB] [1.0 GB]
Partition check:
 sda: sda1 sda2 < sda5 sda6 sda7 sda8 sda9 >
Linux Tulip driver version 0.9.4.2 (Mar 21, 2000)
eth0: Digital DS21143 Tulip rev 33 at 0x1ff00, 00:60:B0:17:24:41, IRQ 1055.
eth0:  MII transceiver #1 config 1000 status 786d advertising 01e1.
request_irq(1055, c01b0b74, 0x4000000, eth0, c7f86800)
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 15.1.49.59, my address is 15.1.49.181
VFS: Mounted root (ext2 filesystem) readonly.
tty_open
searching for 4/64
found 136/[0,256]
found 128/[0,256]
found 3/[0,256]
found 2/[0,256]
found 5/[64,64]
found 4/[64,64]
driver: -1070829704
retval 0
request_irq(538, c01a4470, 0x4000000, serial, c02c795c)
busdev_enable_irq(c7fea080, 26) Lasi: IMR 0x220
driver.open 0
do_execve
trying c01649e8
trying c0164480
load_som_binary
It seems to be a valid SOM executable
Stand-alone shell (version 3.4)
500 5 cbd 8a3b
> foo 1073767600, 20020620


From - Thu Nov 08 21:12:30 2018
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Subject: [parisc-linux] some questions ...
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Xref: news.gmane.org gmane.linux.ports.parisc:7256

hi all,

I want to test linux/HPPA.
I have one HP9000/800/F10 (16MB RAM), but it has
unfortunately no gfx and no network interface card.
Now I also got a HP9000/730 (32MB RAM, CRX-Graphics)
with an integrated network interface card.

Since I want/have to mount the (linux-)boot partition via
nfs, I can only use the "King Cobra" HP9000/730.

But as I wanted to test the network card, I recognized that it
does not work properly; but I don't now wether it is my fault
or not ...

I'm using HP/UX  10.10 (I know that this mailing list is for
linux/HPPA, but since I can't use the network, I don't know
if I can use the machine for linux/HPPA testing) and
configured a 192.168.0.0 net (class C).
The workstation is connected via BNC, but I seems that there
is no link. (ping was hanging, and when i used "arp -s", ping
said that there is some probably some link/carrier problem)
And the light on my hub is not blinking, either.

The same routing table (just loopback, no default gateway)
is working for my XTerminal (RX700) and my linux/ix86 computers.

Perhaps the computer was connected via AUI before,
and I don't know how to change between AUI/BNC.
Is there a dip switch/jumper/software configuration thing ?
I didn't see anything in "SAM", but perhaps there is something for the
CLI ?

I configured the network interface to use Ethernet Frames,
(other possible configuration is IEEE803.2/Ethernet and IEEE803.2).
Is this the possible source of error ?



is there something I have to be aware of when testing linux/HPPA ?
Is it just getting the linux-kernel, booting it and mount the rest
via nfs ?


thanks in advance, max


From - Thu Nov 08 21:12:30 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SCSI works on B180 and 712
Date: Fri, 05 May 2000 17:06:07 -0700
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Paul Bame wrote:
> 
> Many thanks to ggg, robert, and prumpf, for helping me get the SCSI
                      -------

Uh, erm, you mean Richard? (as in Richard Hirst)

> driver (sim710 specifically) working on B180 (should work on A180 too)
> and 712!!!

Basically this should work on any box who's processor (U-bit) and
memory controller supports uncacheable memory. Consensus to date
seems to limit this to boxes with 7100LC and 7300LC processors.

Last I heard, Richard was still working on getting stuff working
on the 715/75 recently dropped off. It seems since this box is
a PA7100 (not LC), it doesn't support U-bit (just ignores it
perhaps?).

For systems with U2/Uturn (HP-UX ccio driver), prumpf is working
on "Dynamic DMA mapping" support on those. For boxes with Astro
(HP-UX sba driver), support is already in CVS and "sort-of" tested.

welcome (it was fun),
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [joey@linuxtag.de: Invitation for LinuxTag 2000]
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To: Florian Lohoff <flo@rfc822.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:7258

On Fri, May 05, 2000 at 04:56:54PM +0200, Florian Lohoff wrote:
> I will be at the booth already with Linux/mips(el) and probably i might
> bring a gecko with me ... Although i am not that experienced
> with PA-Risc i have booted it once with a kernel/ramdisk image and
> it showed some reaction :)

even as I'll be at the HP booth, it shouldn't be a problem to help you
setting up Linux/PARISC.

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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Subject: [parisc-linux] Userland yet??????
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Hello, 
 Great to see the scsi working any idea when we might be able to get
remotely close to multiuser mode? 
 I know it's early and I'm waiting quietly with a couple PA-Risc on the
closet, 715's and one doing setiathome as it's the only one with an OS
HP-UX 9.03 and I have only one aui->BNC so that limits the others. 
 Congrats on the scsi driver thanks for all the hard work that goes on
from a bystander. 
 Terry



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From: Philipp Rumpf <prumpf@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Tree Issues
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Hi,
I just returned from spending a month in California working on stuff
not related to PA-RISC (and a week here trying to get back into
normal life).  If you sent me any email I didn't answer, you should
probably resend it now (if you still care about an answer, that is).

For various reasons, most of which I do not want to discuss in public,
I have decided not to continue merging my kernel changes with the
tree maintained by The Puffin Group / Linuxcare.

I am extremely grateful for TPG's help so far;  their co-operation
with HP in selecting the documentation to be published and making it
actually happen is what made this project possible.

I am quite unhappy with the code that currently is in the tree;  most
of it is unreviewed, and too much of it is in a state now where I
think it is easier to rewrite it from scratch than to maintain it
long-term.  This is not about individuals' contributions;  no-one can
be blamed for submitting working code and relying on the tree
maintainer to make sure some standards of quality and consistency are
met.

Any contributor that should decide (s)he wants to submit their work
to me directly is welcome to do so.  (But please realize that while
I will look at the changes in the TPG tree, I don't know whether TPG
will do the same with my tree).

I am going to try to set up a sourceforge.net project to keep my
modifications publicly-visible now;  while I'm not perfectly happy
with announcing anything before people can actually look at my code,
I couldn't think of any better way to do it.

To everyone whom I am not going to work with in the future, it has
been a lot of fun to do so, even though I believe I'm going to have
more fun with what I am going to do now.

Please feel free to send me any questions or comments either
personally (prumpf@tux.org is my preferred long-term address) or on
this list.

I am going to send a link to more details of the technical / code
changes after I actually put something about it together.

I do not think this fork has to be a permanent one, though I can't
help thinking it is likely to be;  I will be happy to talk to the
TPG/LC tree maintainers once I have a tree which I am happier with
than I am with the current cvs tree.

My apologies to Matthew for sending this right after he returned from
vacation.

	Philipp Rumpf

[There seems to be a common misunderstandment that I am still working
for SuSE GmbH.  I'm not, and I haven't for 6 months;  I'm currently
living on student loan and am not employed by any company]


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From: Paul Bame <bame@endor.fc.hp.com>
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Subject: Re: [parisc-linux] Tree Issues
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= For various reasons, most of which I do not want to discuss in public,

I suspect the reasons you are not discussing may be the most
important ones since the ones you mention here seem resolvable.

= I am quite unhappy with the code that currently is in the tree;  most
= of it is unreviewed,

Indeed we're *all* guilty of checking in a few bad hacks "just to make it
work".

= and too much of it is in a state now where I
= think it is easier to rewrite it from scratch than to maintain it
= long-term.

This is a common point on many projects.  Especially when people learn
as they code, they make unwise decisions especially in the beginning,
which are best re-written at some point.

My hope was that we'd charge ahead to a working user land and tool
chain and then after enabling userland work to proceed, we'd go back
to clean up the kernel simultaneously with supporting 64 bit where
we'd get the chance to "do it right".

Do you feel a re-write is a faster way of enabling user-land
development to go forward than adding a few more hacks to our
existing hacks?

= This is not about individuals' contributions;  no-one can
= be blamed for submitting working code and relying on the tree
= maintainer to make sure some standards of quality and consistency are
= met.

Nobody is acting as this type of tree maintainer, and I for one would
welcome someone to review my checked-in code and let's me know what's
stupid about it.  The tree maintainer could even maintain a CVS tag
which designates the "maintainer's version" of the code.

= I am going to try to set up a sourceforge.net project to keep my
= modifications publicly-visible now;  while I'm not perfectly happy
= with announcing anything before people can actually look at my code,
= I couldn't think of any better way to do it.

I am willing to set up linux-2.3-prumpf on puffin.external.hp.com.
There's sufficient space to host another linux tree.

= To everyone whom I am not going to work with in the future, it has
= been a lot of fun to do so, even though I believe I'm going to have
= more fun with what I am going to do now.

I'll be interested to see what you'll be doing now.  It sounds
like you'll be fulfilling a role we need for the TPG port.
I'm a little surprised you're going elsewhere to do it, rather than 
just starting to do it with the TPG crowd and seeing what happens.

Good luck, and thanks for all your help so far.

	-Paul Bame


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New driver for NCR 53c700 SCSI chips
Date: Wed, 10 May 2000 15:20:10 +0100
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Hi,
  I have added a driver for the 53c700.  It is only lightly tested on my 715/75,
but does detect a disk and a tape, and can mount a root file system and load the
standalone shell from it.  The changs are all in cvs.

I recommend disconnecting any disks with valuable data on them before trying it.

For those that don't know me, I have a lot of experience with the 53c710 on m68k
VME boards and Compaq machines.  I created 53c7xx.c from 53c7,8xx.c and also wrote
sim710.c.

The new driver is sim700.c and my intention is to make it support 53c710 also, so
sim710.c can be removed.

At present selecting CONFIG_SCSI_LASI builds in sim700.c, sim710.c, and 53c7xx.c.
I think we should concentrate on sim700.c and forget about 53c7xx.c.  53c7xx.c is
more powerful, but is limited to 53c710 chips and makes demands on the hardware
that not all systems support.  I don't know how practical it is to make 53c7xx.c
work on a range of HP machines, and favour adding extra functionality to sim700.c
as we need it.

Please give this a try and report back,

Thanks,
  Richard


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= "make" died with the following error:
= 
= /linux/grundler/glibc/hppa1.1-linux/csu/crti.S: Assembler messages:
= /linux/grundler/glibc/hppa1.1-linux/csu/crti.S:42: Fatal error: Nested proced
ures
= 
= Sure enough, two .PROC's have no .PROCEND in between.

I think I've figured this out, and it'll take a glibc expert to do
the *right* thing vis-a-vis the complex glibc structure.

Let's ignore the .fini section and just deal with .init.  This is the
section where code which needs to execute prior to main() is placed.  It
is in effect a normal assembly-language procedure whose contents are
created at link-time.  The procedure looks like this (somewhat simplified):

    .globl _init
	    .EXPORT _init,ENTRY
	    .type    _init,@function
    _init:
	    .PROC
	    .CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=3
	    .ENTRY
	    a few assembly statements

	    /***** pre-main() code to be inserted here *******/

	    a few more assembly statements
	    .EXIT
	    .PROCEND

glibc wants to place the first part (up to the comment) into crti.S, and
the second part into crtn.S, then at link time something like this happens:

	ld -o a.out crti.o users's-object-files crtn.o

Inside the user's object files, if they need something called before main(),
like a C++ static constructor, you might find code like this:

	.section .init
	bl,n my-static-constructor,%r2

Thus the _init procedure is created is link time, but that's not the problem.

The problem is that the neither the first scrap of code nor the second
will assemble, because there's a .PROC without .PROCEND and .ENTRY
without .EXIT.  .ENTRY and .EXIT both produce code, .ENTRY depends on
.CALLINFO which depends a tad upon .PROC.

If we hand-code the .ENTRY and .EXIT sequences, we can nuke all the
troublesome assembler directives and fix this... simple!...

except for the way this code got generated in the first place.
It's generated in glibc/csu by 'gcc -S initfini.c' and then
hacking the generated assembly, which contains the .PROC,.ENTRY,etc...

So one thing we could do is hack gcc to produce its own entry/exit
assembly code generation.  Another thing we could do is make the
assembler very forgiving.  Perhaps the best thing we could do is find a way
to insert PA-specific handwritten assembly for these two files
into the glibc build.  I can't figure out how to do this without
making glibc specific only to PA.  Help!

	-Paul Bame


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Subject: Re: [hppa-linux] memory layout
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Xref: news.gmane.org gmane.linux.ports.parisc:7264

> Talking about only pa1.1 or 32 bit CPUs, I would say the same layout
> can be used as Linux on Intel does. That is kernel mapped at 0xc0000000.
> So 3 Gig for User space and 1 Gig for kernel. Of course, other ppl may
> have different ideas. 

If you want to run PH/UX binaries then you need to probably follow their
layout

> PA has this strange concept of Spaces and they have those 
> space registers %sr0 to %sr7. This reminds me of Intel's segment 
> registers. And whoever wanted to do any serious OS like Unix on 80386
> never liked segments.

Spaces is more segments done right. The reason we dont use segmentation
to split user/kernel on x86 any more is simply performance - it costs us
1 clock per dword copied to/from luser space.

The m68k people use the 'spaces' equivalent on the m68k quite heavily



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From: Cary Coutant <cary@cup.hp.com>
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Subject: Re: [parisc-linux] crti.S Nested procedures error
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Have you tried this:

>    .globl _init
>	    .EXPORT _init,ENTRY
>	    .type    _init,@function
>    _init:
>	    .PROC
>	    .CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=3
>	    .ENTRY
>	    a few assembly statements

      .PROCEND

      .PROC
 	    .CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=3
      
>
>	    /***** pre-main() code to be inserted here *******/
>
>	    a few more assembly statements
>	    .EXIT
>	    .PROCEND

While you need to use .proc and .procend in pairs, that's not the case 
with .entry and .exit. If the assembler won't take this code, it should. 
Besides being useful for this case, it's also necessary to generate code 
like this for out-of-line pieces of procedures.

-cary


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Philipp Rumpf wrote:
> Hi,
> I just returned from spending a month in California working on stuff
> not related to PA-RISC (and a week here trying to get back into
> normal life).

Hi Philipp,

I hope things went well...certainly sounded interesting...

...
> I am going to try to set up a sourceforge.net project to keep my
> modifications publicly-visible now;  while I'm not perfectly happy
> with announcing anything before people can actually look at my code,
> I couldn't think of any better way to do it.

I was somewhat (not totally) surprised by this. I had to think about
several things before replying:
o what to do with hardware HP and/or TPG/LC have loaned you?
o should you keep CVS access rights to TPG's tree?
o why are you unhappy with TPG's CVS tree?
o why don't you want to talk publicly about it?
o what is the effective impact?

Easy stuff:
o I don't see why HP would want you to return any HW...as long as
  you keep using it for developement and post those results.
o You are not so stupid as to malicously mangle TPG's CVS tree.
  Keeping CVS access should be fine.


Hard Stuff:
o Not sure about the net impact. TPG and HP folks will continue working
  using TPG's tree. I'm pretty sure the debian release will be based
  on TPG's tree.

  But I can think of several excellent reasons why it's better for
  you to publish/manage your own tree:
  + you can change everything as often as you like - you'll be happier
    and make more changes.
  + You stop wasting time with merging your changes to TPG/LC's tree.
  + Those changes are visible "immediately" instead of waiting for
    you to commit code. (which has been a serious problem, IMHO).
  + You need the experience. Working with others is seldom really easy.
    And keeping people motivated to work on stuff that one needs help
    with requires such experience. I'm talking about:
    http://puffin.external.hp.com/mailing-lists/parisc-linux/1999/09-Sep/0011.html
    and similar conflicts with others.

  Drawbacks:
  - Someone else (who probably knows less about it) will end up
    merging your interesting changes to TPG/LC's tree.
    This is in addition to regular merges with linus' tree.


o I don't understand why you are so unhappy with TPG's CVS tree.
  Certainly there are design and implementation problems in that tree.
  But such compromises are necessary for cooperation. Until we have
  more data about what works/doesn't work, such compromises are part
  of sharing code. I didn't get everything I wanted either
  (eg do_irq_mask()).

  I assume you aren't talking about bug fixes.

o "Success" in a cooperative project like this requires constructive
  communication. Dave Miller/Martin Mares replied constructively to
  my e-mail inqueries despite the fact that (a) I'm a linux "novice" and
  (b) they have NFC who I am. I'm very impressed with both of them.
  And I think they also benefitted from at least a few of the things
  I wrote them.

...
> I do not think this fork has to be a permanent one, though I can't
> help thinking it is likely to be;

I suspect it will be too - working with others can be harder than
working alone. But on a "project" of this scope, I don't see one
person being successful.

> I will be happy to talk to the
> TPG/LC tree maintainers once I have a tree which I am happier with
> than I am with the current cvs tree.

Yes...but will they want to talk to you?
If HP helps TPG/LC run the tree, do they need to?
I hope you haven't "burned your bridges" here...


Anyway, thanks for telling us!
And I still look forward to future technical discussions with you!

thanks,
grant


Grant Grundler
Unix Development Lab
+1.408.447.7253


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Subject: Re: [parisc-linux] Tree Issues
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At 17:43 2000-05-10 -0700, you wrote:
>Philipp Rumpf wrote:
>> Hi,
>> I just returned from spending a month in California working on stuff
>> not related to PA-RISC (and a week here trying to get back into
>> normal life).
>
>Hi Philipp,
>
>I hope things went well...certainly sounded interesting...
>
>...
>> I am going to try to set up a sourceforge.net project to keep my
>> modifications publicly-visible now;  while I'm not perfectly happy
>> with announcing anything before people can actually look at my code,
>> I couldn't think of any better way to do it.
>
>I was somewhat (not totally) surprised by this. I had to think about
>several things before replying:
>o what to do with hardware HP and/or TPG/LC have loaned you?
>o should you keep CVS access rights to TPG's tree?
>o why are you unhappy with TPG's CVS tree?
>o why don't you want to talk publicly about it?
>o what is the effective impact?
>
>Easy stuff:
>o I don't see why HP would want you to return any HW...as long as
>  you keep using it for developement and post those results.
>o You are not so stupid as to malicously mangle TPG's CVS tree.
>  Keeping CVS access should be fine.
>
>
>Hard Stuff:
>o Not sure about the net impact. TPG and HP folks will continue working
>  using TPG's tree. I'm pretty sure the debian release will be based
>  on TPG's tree.
>
>  But I can think of several excellent reasons why it's better for
>  you to publish/manage your own tree:
>  + you can change everything as often as you like - you'll be happier
>    and make more changes.
>  + You stop wasting time with merging your changes to TPG/LC's tree.
>  + Those changes are visible "immediately" instead of waiting for
>    you to commit code. (which has been a serious problem, IMHO).
>  + You need the experience. Working with others is seldom really easy.
>    And keeping people motivated to work on stuff that one needs help
>    with requires such experience. I'm talking about:
>
http://puffin.external.hp.com/mailing-lists/parisc-linux/1999/09-Sep/0011.html
>    and similar conflicts with others.
>
>  Drawbacks:
>  - Someone else (who probably knows less about it) will end up
>    merging your interesting changes to TPG/LC's tree.
>    This is in addition to regular merges with linus' tree.
>
>
>o I don't understand why you are so unhappy with TPG's CVS tree.
>  Certainly there are design and implementation problems in that tree.
>  But such compromises are necessary for cooperation. Until we have
>  more data about what works/doesn't work, such compromises are part
>  of sharing code. I didn't get everything I wanted either
>  (eg do_irq_mask()).
>
>  I assume you aren't talking about bug fixes.
>
>o "Success" in a cooperative project like this requires constructive
>  communication. Dave Miller/Martin Mares replied constructively to
>  my e-mail inqueries despite the fact that (a) I'm a linux "novice" and
>  (b) they have NFC who I am. I'm very impressed with both of them.
>  And I think they also benefitted from at least a few of the things
>  I wrote them.
>
>...
>> I do not think this fork has to be a permanent one, though I can't
>> help thinking it is likely to be;
>
>I suspect it will be too - working with others can be harder than
>working alone. But on a "project" of this scope, I don't see one
>person being successful.
>
>> I will be happy to talk to the
>> TPG/LC tree maintainers once I have a tree which I am happier with
>> than I am with the current cvs tree.
>
>Yes...but will they want to talk to you?
>If HP helps TPG/LC run the tree, do they need to?
>I hope you haven't "burned your bridges" here...
>
>
>Anyway, thanks for telling us!
>And I still look forward to future technical discussions with you!
>

Phillip: THX for all You've done so far
Grant: THX for that reply.

Now:

Could someone find a way to keep this group together? Yes, it is _much_
harder to work as a team (especially such a widespread one) than
individually. But potential rewards are also greater, since the obtainable
results are bigger. Now, as I haven't contributed anything, my input should
not count as much as I hope it could, but could maybe some compromise be
reached? The worst disappointment comes when one realises, how little would
the compromise _really_ cost had one tried to at least discuss (and
negotiate) it. Pluribus unum, Viribus unitis, Nec Hercules contra plures,
and so on...

PLEASE!

Otherwise, I may start committing code, and we'll see what You all think of
the effort then...;)


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Tomasz Korycki wrote:
...
> Phillip: THX for all You've done so far
> Grant: THX for that reply.
> 
> Now:
> 
> Could someone find a way to keep this group together?

Thomasz,
I don't understand your question.
I didn't have the impression Philipp was unsubscribing from parisc-linux
mailing lists and ignoring us.  He just wants a way to publish/manage his
own CVS repository and allow others to look at it.  Perhaps Philipp should
comment on that himself though...

> Otherwise, I may start committing code, and we'll see what You all think of
> the effort then...;)

You won't get flamed by me for doing that! :^)

I been know to send people older HW for offenses like that.
Even SCSI tape drives (especially to torment sshack :^).

cheers,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: Tomasz Korycki <tkorycki@sprint.ca>
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Subject: Re: [parisc-linux] Tree Issues
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>Tomasz Korycki wrote:
>...
>> Phillip: THX for all You've done so far
>> Grant: THX for that reply.
>> 
>> Now:
>> 
>> Could someone find a way to keep this group together?
>
>Thomasz,
>I don't understand your question.
>I didn't have the impression Philipp was unsubscribing from parisc-linux
>mailing lists and ignoring us.  He just wants a way to publish/manage his
>own CVS repository and allow others to look at it.  Perhaps Philipp should
>comment on that himself though...

It was not my impression either - "group" was meant here to imply "this
group of people who've been cooperationg towards a common goal", mailing
list or no. I believe Phillip still has the same goals as all the other
active participants (and some inactive ones, too), just that he sees a
different way of attaining them, which seems both better and and more
feasible to him. And he may be right. What I suggest, then, is that it is in
everybody's (including Phillip's) best interest if he were to put his
strengths into making the "common way" more amenable to him. And everyone
else should, perhaps, try to accomodate his requirements. Since I do not
know what they are, though, I will not pass judgment on their merit or
feasibility. But I do know, that splitting like that weakens both sides.
Sometimes significantly. And that is what I would _really_ not like to see.
  That's the first place since the old Netblazer list I fill good at. I
would enjoy the continuance of that feeling. I know, I know, that's not what
this is about. But I thought it might matter. 

  There were some warm exchanges here (and probably hotter in private), but
that's what should be expected in a cooperative project. At the same time,
this being email, they are treated differently (no matter how hard one tries
not to) than a collegue busting into Your cubicle and telling You what
You're full of. It's the asynchronous nature that makes us treat it
differently, as well as no opportunity to go for a beer after work and
settling whatever issue, right on the spot. But it is still possible, if
everybody just tries.

  And, there are the dangers You, Grant, Yourself, pointed out. They are not
small.

  Heck, I'm so worked up now, I won't go to bed until I put that 712
together from spares... wonder what'll come out! ;)
  And then, I just might deliver on my threat...

>
>> Otherwise, I may start committing code, and we'll see what You all think of
>> the effort then...;)
>
>You won't get flamed by me for doing that! :^)
>
>I been know to send people older HW for offenses like that.
>Even SCSI tape drives (especially to torment sshack :^).
>
>cheers,
>grant
>
>Grant Grundler
>Unix Development Lab
>+1.408.447.7253
>
>


From - Thu Nov 08 21:12:31 2018
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From: Paul Bame <bame@endor.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ELF tool chain builds hello world!!!
Date: Thu, 11 May 2000 14:10:13 -0600
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Just thought I'd offer a binary tarball of a tool chain which can
cross-compile hello world!!!!!  (seems to work on the kernel too)
There are quite a few little icky things I did to build this which
I'll clean up and post, along with build recipes, over the next
day or so.

User space is not far off!!!!!

	-Paul Bame

The following tarball should be unpacked in / and it populates
/opt/palinux (not to be confused with /opt/puffin).  It is built
for i586 (I have an AMD K6 box at home!) on the Debian 'potato'
release.

ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/elf32x86.tar.gz


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From: Paul Bame <bame@endor.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ELF tool chain builds hello world!!!
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To build the limping tool chain, grab the latest CVS bits for
binutils, gcc, and glibc, and follow a recipe somewhat like this
(it's not exact unfortunately, but should contain all the tricks):


PREFIX=$HOME/xc

cvs co binutils glibc gcc
cd gcc
ln -s ../binutils gcc/binutils

mkdir build-gcc
cd build-gcc
../gcc/configure \
	--disable-nls \
	--disable-shared \
	--target=hppa1.1-linux \
	--host=i586-pc-linux-gnu \
	--prefix=$PREFIX \
	--with-headers=/opt/puffin/include \
	--with-libs=$PREFIX/lib \
	--with-libc

make # need libiberty.a
# build until binutils is complete
cd binutils; make install

PATH=$PREFIX/bin:$PATH

cd ../..; mkdir build-glibc; cd build-glibc

../glibc/configure \
	--disable-nls \
	--without-nls \
	--disable-shared \
	--disable-profile \
	--enable-static-nss \
	--build=i586-linux \
	--host=hppa1.1-linux \
	--disable-sanity-checks \
	--with-headers=/opt/puffin/include \
	--prefix=$PREFIX

make # fails pretty soon

cp ../glibc/csu/crt?.S csu/
make # gets pretty far then fails looking for crtbegin.o

cd ../build-gcc
## Remove $PREFIX/bin from your $PATH!!!
## Repeat GCC configure from above then...
make install  # This installs the rest of gcc just in case...

cd ../build-glibc; make
make install MAKEINFO=

cd $(dirname $(find $PREFIX -name crtbegin.o))
ln -s $PREFIX/lib/* .

# Now you should be able to compile hello world

# The problem is that not all the headers seem to be available, in
# two categories: 1) some headers for example glibc/string/memory.h
# which ought to be installed as ...../include/string/memory.h, aren't
# and 2) things in <sys> like <sys/mount.h>


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From: Paul Bame <bame@endor.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ELF tool chain builds hello world!!!
Date: Thu, 11 May 2000 16:18:27 -0600
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Gaak! so many errors in my recipe!

First, I'm pre-supposing you have /opt/puffin populated with the
current tool chain and the "includes" tarball in /opt/puffin/include.

= To build the limping tool chain, grab the latest CVS bits for
= binutils, gcc, and glibc, and follow a recipe somewhat like this
= (it's not exact unfortunately, but should contain all the tricks):
= 
= 
= PREFIX=$HOME/xc
= 
= cvs co binutils glibc gcc
Do Not = cd gcc
= ln -s ../binutils gcc/binutils
= 
= mkdir build-gcc
= cd build-gcc
= ../gcc/configure \
= 	--disable-nls \
= 	--disable-shared \
= 	--target=hppa1.1-linux \
= 	--host=i586-pc-linux-gnu \
= 	--prefix=$PREFIX \
= 	--with-headers=/opt/puffin/include \
= 	--with-libs=$PREFIX/lib \
= 	--with-libc
= 
= make # need libiberty.a
= # build until binutils is complete

It's probably OK to let gcc build to completion and install that, if it works

= cd binutils; make install
= 
= PATH=$PREFIX/bin:$PATH
= 
= cd ../..; mkdir build-glibc; cd build-glibc
= 
= ../glibc/configure \
= 	--disable-nls \
= 	--without-nls \
= 	--disable-shared \
= 	--disable-profile \
= 	--enable-static-nss \
= 	--build=i586-linux \
= 	--host=hppa1.1-linux \
= 	--disable-sanity-checks \
= 	--with-headers=/opt/puffin/include \
= 	--prefix=$PREFIX
= 
= make # fails pretty soon
= 
= cp ../glibc/csu/crt?.S csu/
= make # gets pretty far then fails looking for crtbegin.o
= 
= cd ../build-gcc

Do Not = ## Remove $PREFIX/bin from your $PATH!!!
Do Not = ## Repeat GCC configure from above then...

= make install  # This installs the rest of gcc just in case...
= 
= cd ../build-glibc; make
= make install MAKEINFO=
= 
= cd $(dirname $(find $PREFIX -name crtbegin.o))
= ln -s $PREFIX/lib/* .

You may get warnings here from 'ln' -- ignore them

= # Now you should be able to compile hello world
= 
= # The problem is that not all the headers seem to be available, in
= # two categories: 1) some headers for example glibc/string/memory.h
= # which ought to be installed as ...../include/string/memory.h, aren't
= # and 2) things in <sys> like <sys/mount.h>
= 
= ---------------------------------------------------------------------------
= To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
= `unsubscribe' as the subject.
= 
= 
= 


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From: "T. Martin" <catfish@alltel.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ELF tool chain builds hello world!!!
Date: Thu, 11 May 2000 19:39:52 -0500 (CDT)
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On Thu, 11 May 2000, Paul Bame wrote:
> 
> User space is not far off!!!!!
> 
COOL!!!!
 I got a 715/75 with 64meg ram just waiting for an OS. 
  Also Has anyone thought about tweaking gcc so that it produces better
binaries for pa-risc, Like Alpha Linux gcc compiles with registers
basically with enough registers for an x86 and so speed is lost. 
 Just my .02 worth. 
Terry



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From: Philipp Rumpf <prumpf@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Tree Issues
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On Wed, May 10, 2000 at 05:43:46PM -0700, Grant Grundler wrote:
> > I am going to try to set up a sourceforge.net project to keep my
> > modifications publicly-visible now;  while I'm not perfectly happy
> > with announcing anything before people can actually look at my code,
> > I couldn't think of any better way to do it.
> 
> I was somewhat (not totally) surprised by this. I had to think about
> several things before replying:
> o why are you unhappy with TPG's CVS tree?
> o why don't you want to talk publicly about it?
> o what is the effective impact?

> Hard Stuff:
> o Not sure about the net impact. TPG and HP folks will continue working
>   using TPG's tree.

> I'm pretty sure the debian release will be based on TPG's tree.

I doubt there is any reason to have two userspace trees as well - even
if it should happen for some reason they certainly shouldn't introduce
binary incompatibilities.

> o I don't understand why you are so unhappy with TPG's CVS tree.
>   Certainly there are design and implementation problems in that tree.
>   But such compromises are necessary for cooperation. Until we have

I believe the problems in TPG's tree are not sufficiently explained by
that.  In fact, while the resulting code's design and implementation are
bad, I don't think that the real issue is with the contributors' coding
skills.

> > I do not think this fork has to be a permanent one, though I can't
> > help thinking it is likely to be;
> 
> I suspect it will be too - working with others can be harder than
> working alone. But on a "project" of this scope, I don't see one
> person being successful.

Other Linux ports have been done (basically) by one person - maybe you
can't see _me_ being successful, and I'm not sure whether I disagree
yet.

OTOH, I don't really want to find out.  There are other persons around
that I hope might join me, and I have access to the changes in the TPG
tree.

	Philipp Rumpf


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From: Christopher Neufeld <neufeld@physics.utoronto.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [hppa-linux] Gateway instructions
Date: Thu, 18 Mar 1999 09:35:58 -0500 (EST)
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   Hello folks,

   I'm wondering if anybody's got a handle on how gateway instructions
are supposed to work. The instruction is designed to allow jumps into the
kernel, with privilege promotion, without invoking the cost of an
interrupt, by branching into a page and then taking on the privilege
level of the page. The only safety check seems to be in the "B" bit,
which would appear to prohibit the target of such a jump being, itself,
another jump.
   How does this work, now? Is the target of the gateway instruction
intended to be simply a vector table of other jumps, preceded by some
non-branch instruction which forms the taget of the gateway? After all,
if I am permitted to choose my entry point into a kernel function, I can
do bad things, at the very least crash the kernel, but also probably
subvert it quite easily. Access control seems to be limited to the page,
not forbidding jumps into other parts of the code within the same page.
And what is the "B" bit in the processor status supposed to do in all
this?
   Is there a misprint in the book (or a misunderstanding on my part)? If
the "B" bit produces an exception when the target of the gateway is _not_
another jump, then I can see how this can be easily constructed into a
vector table into kernel functions without compromising security.


-- 
 Christopher Neufeld                   neufeld@physics.utoronto.ca
 Home page:  http://caliban.physics.utoronto.ca/neufeld/Intro.html
 "Don't edit reality for the sake of simplicity"


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From: Philipp Rumpf <prumpf@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Tree Issues
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To: Grant Grundler <grundler@cup.hp.com>, Tomasz Korycki <tkorycki@sprint.ca>
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On Wed, May 10, 2000 at 10:06:27PM -0700, Grant Grundler wrote:
> Tomasz Korycki wrote:
> I don't understand your question.
> I didn't have the impression Philipp was unsubscribing from parisc-linux
> mailing lists and ignoring us.

I wasn't :)

> He just wants a way to publish/manage his own CVS repository and allow
> others to look at it.

There is nothing strictly limiting it to a CVS repository - if seperate
mailing lists or something like that ever seem to make sense to me, I
will set them up.

That's basically why I went with sourceforge rather than accepting Paul's
linux-2.3-prumpf offer (thanks, anyway) - not depending on HP's continued
support, and having the option to move completely away from TPG's
resources.

	Philipp


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From: Paul Bame <bame@endor.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ELF tool chain builds hello world!!!
Date: Fri, 12 May 2000 15:29:27 -0600
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This recipe is a little better.  Remember it assumes /opt/puffin
contains the current cross compiler and /opt/puffin/include contains
the include.tar.gz tarball.


#!/bin/sh

set -e
set -x

# Where to put the built results
PREFIX=$HOME/xc

# Where your checked-out CVS sources live
SRC=$HOME/palinux

# Where your build sub-dirs go
BUILD=$HOME/xc-build

# Clean out and/or create some things
rm -fr $PREFIX/* $BUILD/build-gcc $BUILD/build-glibc
mkdir -p $PREFIX $BUILD/build-gcc -p $BUILD/build-glibc

PATH=$PREFIX/bin:/opt/puffin/bin:$PATH

# Allow the GCC configure step to auto-configure binutils
cd $SRC && rm -f gcc/binutils &&
    ln -s ../binutils gcc/binutils

# This'll mainly build binutils for now
cd $BUILD/build-gcc
$SRC/gcc/configure \
	--disable-nls \
	--disable-shared \
	--target=hppa1.1-linux \
	--host=i586-pc-linux-gnu \
	--prefix=$PREFIX \
	--with-headers=/opt/puffin/include \
	--with-libs=$PREFIX/lib \
	--with-libc

make || true

# build will fail inside gcc somewhere, don't stop the script for this

# Install binutils anyway
cd binutils; make install

# no need to re-make this again
rm $SRC/gcc/binutils

# Get ready to re-config gcc -- should build this time
cd $BUILD/build-gcc && rm -r *
$SRC/gcc/configure \
	--disable-nls \
	--disable-shared \
	--target=hppa1.1-linux \
	--host=i586-pc-linux-gnu \
	--prefix=$PREFIX \
	--with-headers=/opt/puffin/include \
	--with-libs=$PREFIX/lib \
	--with-libc
make
make install

cd $BUILD/build-glibc

$SRC/glibc/configure \
	--disable-nls \
	--without-nls \
	--disable-shared \
	--disable-profile \
	--enable-static-nss \
	--build=i586-linux \
	--host=hppa1.1-linux \
	--disable-sanity-checks \
	--with-headers=/opt/puffin/include \
	--prefix=$PREFIX

cd $BUILD/build-glibc
make || true # fails pretty soon

cp $SRC/glibc/csu/crt?.S csu/ || true

cd $(dirname $(find $PREFIX -name crtbegin.o))
ln -s $PREFIX/lib/* .

# Now you should be able to compile hello world

# The problem is that not all the headers seem to be available, in
# two categories: 1) some headers for example glibc/string/memory.h
# which ought to be installed as ...../include/string/memory.h, aren't
# and 2) things in <sys> like <sys/mount.h>


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Tired of these yet?


#!/bin/sh

set -e
set -x

# Where to put the built results
PREFIX=$HOME/xc

# Where your checked-out CVS sources live
SRC=$HOME/palinux

# Where your build sub-dirs go
BUILD=$HOME/xc-build

# Clean out and/or create some things
rm -fr $PREFIX/* $BUILD/build-gcc $BUILD/build-glibc
mkdir -p $PREFIX $BUILD/build-gcc -p $BUILD/build-glibc

PATH=$PREFIX/bin:/opt/puffin/bin:$PATH

# Allow the GCC configure step to auto-configure binutils
cd $SRC && rm -f gcc/binutils &&
    ln -s ../binutils gcc/binutils

# This'll mainly build binutils for now
cd $BUILD/build-gcc
$SRC/gcc/configure \
	--disable-nls \
	--disable-shared \
	--target=hppa1.1-linux \
	--host=i586-pc-linux-gnu \
	--prefix=$PREFIX \
	--with-headers=/opt/puffin/include \
	--with-libs=$PREFIX/lib \
	--with-libc

make || true

# build will fail inside gcc somewhere, don't stop the script for this

# Install binutils anyway
cd binutils; make install

# no need to re-make this again
rm $SRC/gcc/binutils

# Get ready to re-config gcc -- should build this time
cd $BUILD/build-gcc && rm -r *
$SRC/gcc/configure \
	--disable-nls \
	--disable-shared \
	--target=hppa1.1-linux \
	--host=i586-pc-linux-gnu \
	--prefix=$PREFIX \
	--with-headers=/opt/puffin/include \
	--with-libs=$PREFIX/lib \
	--with-libc
make
make install

cd $BUILD/build-glibc

$SRC/glibc/configure \
	--disable-nls \
	--without-nls \
	--disable-shared \
	--disable-profile \
	--enable-static-nss \
	--build=i586-linux \
	--host=hppa1.1-linux \
	--disable-sanity-checks \
	--with-headers=/opt/puffin/include \
	--prefix=$PREFIX

cd $BUILD/build-glibc
make || true # fails pretty soon

cp $SRC/glibc/csu/crt?.S csu/ || true
make
make install MAKEINFO=

cd $(dirname $(find $PREFIX -name crtbegin.o))
ln -s $PREFIX/lib/* .

# Now you should be able to compile hello world

# The problem is that not all the headers seem to be available, in
# two categories: 1) some headers for example glibc/string/memory.h
# which ought to be installed as ...../include/string/memory.h, aren't
# and 2) things in <sys> like <sys/mount.h>


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From: Paul Bame <bame@endor.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] glibc and the rest of the world
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Since we've changed the assembler comment character, we changed some
existing assembly files in glibc.  Since these changes were done in-place,
we will be unable to fold them back into the upstream sources since
most folks don't use our assembler.  I'm thinking we need a separate
set of linux/hppa files instead of modifying the existing generic hppa
ones but I don't know how to do this.  Comments?  Advice?

My real motivation is to be able to track the real glibc.  I think the
copy we have is flawed, and with our changes it's difficult to go
to a standard release, like 2.1.3 (which I'd love to do, then we
can use the Debian build) or keep up with recent changes.  Since I
changed some of those assembly files too, I'd like to clean
up my hackery a bit before getting much deeper in the mire.

	-Paul Bame


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc and the rest of the world
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On Tue, 16 May 2000, Paul Bame wrote:

> Since we've changed the assembler comment character, we changed some
> existing assembly files in glibc.  Since these changes were done in-place,
> we will be unable to fold them back into the upstream sources since
> most folks don't use our assembler.  I'm thinking we need a separate
> set of linux/hppa files instead of modifying the existing generic hppa
> ones but I don't know how to do this.  Comments?  Advice?

I think the assembler comment char change was a very bad idea, and it
would be better to go back to the standard for pa.  This may cause a
little pain now in modifying various sources, but it's not that hard;
I've attached a set of patches for the kernel and palo that use a `;!'
comment start to provide backward compatibility with existing tools.

Besides the incompatibility with existing hppa source, one serious
problem with `!' for a comment start is that it breaks floating-point
compare instruction conditions.  For instance

    fcmp,sgl,!<>  %fr4, %fr5

won't assemble using the current puffin cvs assembler.

I have yet to hear any reason to use `!' for comments.  Can we please go
back to `;'?

Alan Modra

-- 
Linuxcare.  Support for the Revolution.


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From - Thu Nov 08 21:12:32 2018
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X-Mozilla-Keys:                                                                                 
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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] glibc and the rest of the world
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On Wed, 17 May 2000, Alan Modra wrote:

> I've attached a set of patches for the kernel and palo that use a `;!'
> comment start to provide backward compatibility with existing tools.

Which is incomplete, I've just found :-(  The kernel uses ';' in some
macros to generate asm, with bad results if you happen to be using
binutils where ';' is a comment char.  Fixing it....

-- 
Linuxcare.  Support for the Revolution.


From - Thu Nov 08 21:12:32 2018
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From: Chris Snow <csnow@julian.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] hang during boot - Apollo 715/50
Date: Wed, 17 May 2000 17:19:22 -0400 (EDT)
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I've got an Apollo 715/50 box, 32Meg RAM and a serial console for
output.  I followed the "recipe" from the web site, and built a kernel,
installed rbootd, etc.  Then i "cvs update"'d the kernel code to the
latest version. Then, I boot and it hangs.

I talked to Puffin on IRC this afternoon (me="Ftns"), and he suggested
I post here.



When I boot the machine, I get the following - typing by hand, so I'll
give you the last part:

..... (other stuff) ....
Starting kswapd v1.6
Serial driver version 4.92 (2000-1-27) with MANY_PORTS SHARE_IRQ \
SERIAL_PCI enabled
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: 82596 at -xf0826000, 08 00 09 62 82 1E IRQ 535
lasi_82596.c:v1.2 02/13/2000
eth0: lp at 0xc1fd4000 (1720 bytes), lp->scp at 0xc1fd4014
request_irq(535, c01baea8, 0x0, i82596, c1fecc00)
busdev_enable_irq(c1fe9080, 23) ASP: IMR 0x100
busdev_disable_irq(c1fe9080, 23) ASP: IMR 0x0



then it hangs.


After inserting some printk's, it seems the kernel goes into
do_initcalls() in init/main.c and never returns...

Does anyone have any suggestions for this?  I'm going to muck around some
more with it, but I'd love to hear that someone else had the same problem
and already has a fix for it :)


Thanks,





     Chris


From - Thu Nov 08 21:12:32 2018
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X-Mozilla-Keys:                                                                                 
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From: Chris Snow <csnow@julian.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/50 hang - more info
Date: Wed, 17 May 2000 18:27:21 -0400 (EDT)
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I managed to find some widgets and hook the serial output of the HP to my
PC, so I'm sending along the entire boot output, as well as my .config.


output:
------
              (c) Copyright Hewlett-Packard Company, 1991, 1992
Portions of this code are (c) Copyright Samsung Electronics Co., Ltd, 91,
92 

PDC ROM rev. 1.3
IODC ROM rev. 1.1
32 MB of memory have been configured.


Selecting a system to boot.
To stop selection process, press and hold the ESCAPE key.

Booting from:     lan.00a024-95c59e.3.6     boy

Hard booted.
palo ipl chris@boy Wed May 17 18:19:21 EDT 2000
0/vmlinux 1991268 bytes @ 0x7800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs
nfsroot=192.168.1.2'
Kernel: partition 0 file /vmlinux
ELF32 executable
prepare_loadable 0050368c 2

Entry 0010182c first 00100000 n 3
Segment 0 load 00100000 size 1123464 mediaptr 0x1000
Segment 1 load 00214000 size 158452 mediaptr 0x114000
Segment 2 load 0023c000 size 8192 mediaptr 0x13b000
branching to kernel entry point 0x0010182c
The Kernel has started...
Free memory starts at: 0xc02a8000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.168.1.2'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00003100 00000481 00000000 00000000 7816bc26 ffffffff 00000004
0000000a 0000000a
vers    0000000b
CPUID vers 0 rev 0
CPU(s): 1 x PA7100 at 50.000000 MHz
Searching for devices in PDC firmware...  an older box...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0, 0x77,
0x0, 0x0
2. Scorpio Core BA (11) at 0xf082f000, versions 0x7, 0x0, 0x70, 0x0, 0x0
3. Scorpio Core SCSI (10) at 0xf0825000, versions 0x7, 0x0, 0x71, 0x0, 0x0
4. Scorpio Core LAN (802.3) (10) at 0xf0826000, versions 0x7, 0x0, 0x72,
0x0, 0x0
5. Scorpio Core HIL (10) at 0xf0821000, versions 0x7, 0x0, 0x73, 0x0, 0x0
6. Scorpio Core RS-232 (10) at 0xf0823000, versions 0x7, 0x0, 0x75, 0x0,
0x0
7. Scorpio Core RS-232 (10) at 0xf0822000, versions 0x7, 0x0, 0x75, 0x0,
0x0
8. Scorpio Core Centronics (10) at 0xf0824000, versions 0x7, 0x0, 0x74,
0x0, 0x09. Scorpio Audio (10) at 0xf1000000, versions 0x7, 0x0, 0x7b, 0x0,
0x0
10. Scorpio EISA BA (11) at 0xfc000000, versions 0x7, 0x0, 0x76, 0x0, 0x0
11. Scorpio (715/50) (0) at 0xfffbe000, versions 0x310, 0x0, 0x4, 0x0,
0x81
12. Scorpio (1) at 0xfffbf000, versions 0x17, 0x0, 0x9, 0x0, 0x0
That's a total of 12 devices.
Linux version 2.3.99-pre1 (chris@boy) (gcc version 2.9-hppa-991112) #8 Wed
May 17 18:18:58 EDT 2000
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 8192
zone(0): 4096 pages.
zone(1): 4096 pages.
zone(2): 0 pages.
trap_init
Calibrating delay loop... 42.19 BogoMIPS
Memory: 29436k available
kmem_test() - start
kmem_free: Bad front redzone (objp=c1ffe004, name=test-cachep)
kmem_free: Bad rear redzone (objp=c1ffe004, name=test-cachep)
kmem_test() - finished
c1ff0000 c1ff8000 c1fee000 c1ffc000
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 8192 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
request_irq(259, c01bfd00, 0x0, asp, c1fe9080)
ASP IRQ 259 EIM 0xfffe0003
busdevice_alloc_irq(0xf0823000) on ASP 0x200 + 26 = 538
Found serial #0 at 0xf0823000, IRQ 538
ttyS00 at iomem 0xf0823800 (irq = 538) is a 16550A
busdevice_alloc_irq(0xf0822000) on ASP 0x200 + 25 = 537
Found serial #1 at 0xf0822000, IRQ 537
ttyS00 at iomem 0xf0822800 (irq = 537) is a 16550A
busdevice_alloc_irq(0xf0826000) on ASP 0x200 + 23 = 535
Found i82596 at 0xf0826000, IRQ 535
early initialization of device eth0 is deferred
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 2048 bind 2048)
Starting kswapd v1.6
Serial driver version 4.92 (2000-1-27) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: 82596 at 0xf0826000, 08 00 09 62 82 1E IRQ 535.
lasi_82596.c:v1.2 02/13/2000
eth0: lp at 0xc1fd4000 (1720 bytes), lp->scb at 0xc1fd4014
request_irq(535, c01baea8, 0x0, i82596, c1fecc00)
busdev_enable_irq(c1fe9080, 23) ASP: IMR 0x100
busdev_disable_irq(c1fe9080, 23) ASP: IMR 0x0

----- end of output

and here is my .config (it is the default, I haven't changed anything...)

.config
-------
#
# Automatically generated make config: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# General options
#
# CONFIG_SMP is not set
CONFIG_GSC=y
CONFIG_GSC_LASI=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
# CONFIG_PCI_LBA is not set

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# General setup
#
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_SYSCTL is not set
CONFIG_BINFMT_SOM=y
# CONFIG_BINFMT_ELF is not set
# CONFIG_BINFMT_MISC is not set
# CONFIG_BINFMT_JAVA is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set

#
# Additional Block Devices
#
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_MD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_INITRD=y

#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_NETLINK is not set
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
# CONFIG_UNIX is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_IP_ROUTER is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_ALIAS is not set
# CONFIG_SYN_COOKIES is not set

#
# (it is safe to leave these untouched)
#
# CONFIG_SKB_LARGE is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set

#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_BRIDGE is not set
# CONFIG_LLC is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# SCSI support
#
# CONFIG_SCSI is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
CONFIG_LASI_82596=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_SB1000 is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
# CONFIG_DE4X5 is not set
CONFIG_TULIP=y
# CONFIG_DGRS is not set
# CONFIG_DM9102 is not set
# CONFIG_EEPRO100 is not set
# CONFIG_LNE390 is not set
# CONFIG_NE3210 is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_RTL8129 is not set
# CONFIG_8139TOO is not set
# CONFIG_SIS900 is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_ES3210 is not set
# CONFIG_EPIC100 is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_YELLOWFIN is not set
# CONFIG_ACENIC is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Character devices
#
# CONFIG_VT is not set
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
CONFIG_SERIAL_EXTENDED=y
# CONFIG_SERIAL_MANY_PORTS is not set
# CONFIG_SERIAL_SHARE_IRQ is not set
# CONFIG_SERIAL_DETECT_IRQ is not set
# CONFIG_SERIAL_MULTIPORT is not set
# CONFIG_HUB6 is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
# CONFIG_PRINTER is not set
# CONFIG_PPDEV is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_JOYSTICK is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set

#
# Video For Linux
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_DRM is not set
# CONFIG_DRM_TDFX is not set
# CONFIG_AGP is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UFS_FS is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
# CONFIG_NFSD is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_NLS is not set

#
# Sound Drivers
#
# CONFIG_SOUND is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

----- end .config


If there is more info. I can send along please let me know... 


Thanks,


     Chris



From - Thu Nov 08 21:12:32 2018
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From: Bob Pflederer <krp@rsn.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:7284

When I was trying out a C180, I ran into problems in about the same point
in boot.  In my case it turned out to be a problem in the lasi_82596
driver.  It was executing the interrupt handler before the driver was finished
being initialized.  You might try editing lasi_82596.c to make i596_debug
10:

#define I82596_DEBUG 10

#ifdef I82596_DEBUG
int i596_debug = I82596_DEBUG;
#else
int i596_debug = 1;
#endif

This will get you lots more debug messages from the driver so you can see
if it's doing something funny.  I have a hacked version of lasi_82596.c
that may have worked around this problem and some others that I was finding,
but I'm not really sure what state it's in (it may not even compile) as I 
haven't had time to play with it in over a month.  I'll email it to you so 
you can see if it takes you any further.

> pty: 256 Unix98 ptys configured
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> 82596.c: MAC of HP700 LAN blindely read from the prom!
> eth0: 82596 at 0xf0826000, 08 00 09 62 82 1E IRQ 535.
> lasi_82596.c:v1.2 02/13/2000
> eth0: lp at 0xc1fd4000 (1720 bytes), lp->scb at 0xc1fd4014
> request_irq(535, c01baea8, 0x0, i82596, c1fecc00)
> busdev_enable_irq(c1fe9080, 23) ASP: IMR 0x100
> busdev_disable_irq(c1fe9080, 23) ASP: IMR 0x0
> 


From - Thu Nov 08 21:12:32 2018
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New binutils available from cvs
Date: Thu, 18 May 2000 12:41:13 +1000 (EST)
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Xref: news.gmane.org gmane.linux.ports.parisc:7285

Hello everyone,
   I have just uploaded a new binutils to puffin.external.hp.com cvs.  The
new binutils, which you can get with "cvs co binutils-2.10", is a merge of
current public sourceware.cygnus.com cvs with the puffin tree and a few
fixes of my own.

What's changed:

o Quite a few fixes have been added to the sourceware archive since the
  previous puffin import.  I'll not try to list these here.  One warning
  though: some little fixes and general code clean-up I checked in to the
  sourceware archive broke the hppa assembler.  Jeff Law has fixes from 
  me for the problem, but so far hasn't reviewed and OK'd them, so the
  sourceware hppa support is currently broken.

o Some parts of bfd/elf32-hppa.c have been rewritten, since the previous
  code just couldn't do the right thing.  eg. hppa_elf_relocate_insn used
  to inspect the insn it was given to see whether it was a branch, but
  there's no guarantee that insn was actually code.  It could have come
  from a .word directive, and in fact one place in pa-linux was broken
  due to this bug.

o The binutils hppa testsuite has been modified to (mostly) work for
  hppa1.1-linux.

o ld/emultempl/hppalinux.em has the new orphan section handling.

o I've put in a few fixes for 64 bit parisc, mostly just things I noticed
  while trying to make sense of the hppa backend.

o There are various incomplete pieces of code for things we'll need to
  eventually support.

***BIG WARNING**
  This binutils goes back to using the standard hppa comment char and line
separator char.  Existing puffin parisc code needs to be modified to suit,
otherwise you'll get lots of assembly errors (easy to fix), or silent
removal of code (where multiple asm instructions were placed on one line).

  I'll be shortly checking in a patch to puffin linux-2.3 and palo cvs
that should allow either the new or the old binutils to be used.  I guess
there is plenty of other source that needs fixing similarly.

Enjoy,
  Alan Modra.

PS. If you check in patches to the new binutils, please _please_ put in a
ChangeLog entry too.
-- 
Linuxcare.  Support for the Revolution.


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Christopher Neufeld wrote:
>    How does this work, now? Is the target of the gateway instruction
> intended to be simply a vector table of other jumps, preceded by some
> non-branch instruction which forms the taget of the gateway?

I suspected so, but was confounded by the same issues you bring up....

OpenBSD has this:
#define SYSCALLGATE     0xC0000000              /* syscall gateway page
*/
but I can't find it used anywhere else in the hppa-specific code, or
indeed the rest of the sys/ tree.

Here's how I think it works:
The GATE completer takes its privilege from the TLB entry for the page
_containing_ the BRANCH-with-GATE (see 4-5 in the PARISC 2.0 book).  So
what we do is have a page (at 0xC0000000, probably) that has
appropriately high privilege level in the TLB, and yet is executable by
the user-space process.  I think that means that the TLB access rights
field is [100,11,11]:
- execute: promote to privilege 0
- minimum privilege 3
- maximum privilege 3 (or do we care?)

The page contains:
???
B,GATE to syscall 0
???
B,GATE to syscall 1
???
B,GATE to syscall 2
etc.

I don't know what goes in ???, but clearly something is required so that
we don't get nailed by PSW[B].  Maybe a NOP, but probably something more
useful is required (set up space and other registers?).  The access ID
for that page should probably be 0, to make it universally accessible.

Questions:
- how many privilege levels do we care about?
- is it sufficient to mark kernel data as [001,00,00] with an access ID
of 0 so that all processes can get at it (when they've become
beprivileged enough!) ?  (With variants for code [100,00,00] and
read-only [000,00,00], of course.)
- what should go in ``???''?  Just something that sets PSW[C]?
- am I totally on crack?

Mike

-- 
345127.74 293957.05


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Subject: [parisc-linux] 715 LAN interface
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After narrowing my problem down to the lasi_82596 code, I'm in the process
of learning about this interface.

My question:

The documentation on LASI (lasi_ers.ps) seems to be specific to the
712.  But, AFAIK the 715 has the same ethernet (82596).  Is it safe to
assume that the LAN section of lasi_ers.ps is equally applicable to the
715 interface, or is there some other documentation somewhere that I
should consult ?

Thanks,



     Chris


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> When I was trying out a C180, I ran into problems in about the same point
> in boot.  In my case it turned out to be a problem in the lasi_82596
> driver.  It was executing the interrupt handler before the driver was finished
> being initialized.  You might try editing lasi_82596.c to make i596_debug
> 10:
> 
> #define I82596_DEBUG 10
> 
> #ifdef I82596_DEBUG
> int i596_debug = I82596_DEBUG;
> #else
> int i596_debug = 1;
> #endif
> 
> This will get you lots more debug messages from the driver so you can see
> if it's doing something funny.  I have a hacked version of lasi_82596.c
> that may have worked around this problem and some others that I was finding,
> but I'm not really sure what state it's in (it may not even compile) as I 
> haven't had time to play with it in over a month.  I'll email it to you so 
> you can see if it takes you any further.

I reached the same conclusion you do.   Actually, I got your reply just as
I was about to delve into all the nice output of I82596_DEBUG 10 :)

Unfortunately, your modified driver doesn't seem to help... still crashes
at the same point :(

I'm going to investigate this further.  I'll let you know what turns up.


     Chris



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Xref: news.gmane.org gmane.linux.ports.parisc:7289

On Thu, May 18, 2000 at 12:41:13PM +1000, Alan Modra wrote:
> Hello everyone,
>    I have just uploaded a new binutils to puffin.external.hp.com cvs.  The
> new binutils, which you can get with "cvs co binutils-2.10", is a merge of

Any reason for renaming cvs modules all the time instead of staying with
one name and perhaps not pissing off people with slow, expensive
connections ?

> ***BIG WARNING**
>   This binutils goes back to using the standard hppa comment char and line
> separator char.  Existing puffin parisc code needs to be modified to suit,

This
 a) makes certain glbic code harder to work (which already does work, at
    that)
 b) is inconsistent with every single other architecture that does run
    Linux
 c) is inconsistent with my tree, and basically forces me to distribute
    binutils and gcc patches in addition to the gcc one-liner I already
    have.

All in all this strikes me as not too smart.

BTW, did you fix gcc to work with -mdisable-fpregs and actually make the
kernel use that in the CVS tree ?  It caused a lot of oopses here before
I worked around it (patch is at
ftp://linux-parisc.sourceforge.net/pub/linux-parisc/) (why we got oopses
and what is wrong should be quite obvious if you know RTL - I don't and
it seems reasonably obvious to me, I just can't fix it).

	Philipp Rumpf


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On Thu, 18 May 2000, Philipp Rumpf wrote:

> On Thu, May 18, 2000 at 12:41:13PM +1000, Alan Modra wrote:
> > Hello everyone,
> >    I have just uploaded a new binutils to puffin.external.hp.com cvs.  The
> > new binutils, which you can get with "cvs co binutils-2.10", is a merge of
> 
> Any reason for renaming cvs modules all the time instead of staying with
> one name and perhaps not pissing off people with slow, expensive
> connections ?

Mainly so people can still easily use the old binutils.  .diff.gz came to
1.8M anyway.  I can put the diff somewhere you can get it, if you like.

> > ***BIG WARNING**
> >   This binutils goes back to using the standard hppa comment char and line
> > separator char.  Existing puffin parisc code needs to be modified to suit,
> 
> This
>  a) makes certain glbic code harder to work (which already does work, at
>     that)

Can you explain this?

>  b) is inconsistent with every single other architecture that does run
>     Linux
>  c) is inconsistent with my tree, and basically forces me to distribute
>     binutils and gcc patches in addition to the gcc one-liner I already
>     have.
> 
> All in all this strikes me as not too smart.

Using `!' for comments
a) breaks fp condition codes.
b) is inconsistent with existing hp assembler.

All in all .... :-)

Item a) is the killer.  It might be possible to work around this problem
and make `!' start a comment only when the preceding non-whitespace
character is not a comma, but this sort of horrible hack hasn't much hope
of ever being accepted back into FSF binutils.

> BTW, did you fix gcc to work with -mdisable-fpregs and actually make the
> kernel use that in the CVS tree ?  It caused a lot of oopses here before
> I worked around it (patch is at
> ftp://linux-parisc.sourceforge.net/pub/linux-parisc/) (why we got oopses
> and what is wrong should be quite obvious if you know RTL - I don't and
> it seems reasonably obvious to me, I just can't fix it).

No, I haven't done anything with gcc

-- 
Linuxcare.  Support for the Revolution.


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Xref: news.gmane.org gmane.linux.ports.parisc:7291

> The documentation on LASI (lasi_ers.ps) seems to be specific to the
> 712.  But, AFAIK the 715 has the same ethernet (82596).  Is it safe to
> assume that the LAN section of lasi_ers.ps is equally applicable to the
> 715 interface, or is there some other documentation somewhere that I
> should consult ?

It basically is the same (we had it working.  if it doesn't now you're
probably reinventing the wheel), except that the paragraph in lasi_ers.ps
that reads

"	Even though the megacell is in CA mode, the port accesses look
	like the part is in DX mode: the data needs to be on the lower
	16 bits of the data bus for both port accesses.  This change
	should be sufficient to make the CA mode look like DX mode to
	software, maintaining software compatibility with previous 700
	implementations."

really means "we word-swap the CPU port register and didn't for previous
implementations.  This means you need to change your software or you'll
never even see the nic exists.".

translated to the wonderful language of 82596.c, the function that reads

static inline void MPU_PORT(struct net_device *dev, int c, volatile void *x)
{
#ifdef ENABLE_MVME16x_NET
        if (MACH_IS_MVME16x) {
                struct i596_reg *p = (struct i596_reg *) (dev->base_addr);
                p->porthi = ((c) | (u32) (x)) & 0xffff;
                p->portlo = ((c) | (u32) (x)) >> 16;
        }
#endif
#ifdef ENABLE_BVME6000_NET
        if (MACH_IS_BVME6000) {
                u32 v = (u32) (c) | (u32) (x);
                v = ((u32) (v) << 16) | ((u32) (v) >> 16);
                *(volatile u32 *) dev->base_addr = v;
                udelay(1);
                *(volatile u32 *) dev->base_addr = v;
        }
#endif
}

needs to do the word-swapping for 715/old, but doesn't for 715/new and 712.

(also it should use gsc_writel()).


Generally, 715/olds won't support the new dynamic PCI DMA API, while 712s
will.  My suggestion is that someone takes over the taks of maintaining
the drivers we actually need (82596, scsi, parallel if your masochistic),
using the old DMA API.  I personally will use my 715 as diskless dumb
terminal only if at all so I only care about 82596.

	Philipp Rumpf


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On Thu, May 18, 2000 at 08:37:20PM +1000, Alan Modra wrote:
> On Thu, 18 May 2000, Philipp Rumpf wrote:
> 
> > On Thu, May 18, 2000 at 12:41:13PM +1000, Alan Modra wrote:
> > > Hello everyone,
> > >    I have just uploaded a new binutils to puffin.external.hp.com cvs.  The
> > > new binutils, which you can get with "cvs co binutils-2.10", is a merge of
> > 
> > Any reason for renaming cvs modules all the time instead of staying with
> > one name and perhaps not pissing off people with slow, expensive
> > connections ?
> 
> Mainly so people can still easily use the old binutils.  .diff.gz came to
> 1.8M anyway.  I can put the diff somewhere you can get it, if you like.
> 
> > > ***BIG WARNING**
> > >   This binutils goes back to using the standard hppa comment char and line
> > > separator char.  Existing puffin parisc code needs to be modified to suit,
> > 
> > This
> >  a) makes certain glbic code harder to work (which already does work, at
> >     that)
> 
> Can you explain this?
> 
> >  b) is inconsistent with every single other architecture that does run
> >     Linux
> >  c) is inconsistent with my tree, and basically forces me to distribute
> >     binutils and gcc patches in addition to the gcc one-liner I already
> >     have.
> > 
> > All in all this strikes me as not too smart.
> 
> Using `!' for comments
> a) breaks fp condition codes.

No, it doesn't.  The condition code for fp "not equal" is "<>", not "!=".

> b) is inconsistent with existing hp assembler.

Your point ?

We broke existing assembly language / used the smarter of two possibilities
on almost all architectures.

> All in all .... :-)

All in all even _if_ you have a reason to change it back it could have used
some discussion.  So far you haven't.

> Item a) is the killer.  It might be possible to work around this problem
> and make `!' start a comment only when the preceding non-whitespace
> character is not a comma, but this sort of horrible hack hasn't much hope
> of ever being accepted back into FSF binutils.

Any idea which illegal drug the person who decided "!=" was the fp not
equal condition code was on ;) ?

> > BTW, did you fix gcc to work with -mdisable-fpregs and actually make the
> > kernel use that in the CVS tree ?  It caused a lot of oopses here before
> > I worked around it (patch is at
> > ftp://linux-parisc.sourceforge.net/pub/linux-parisc/) (why we got oopses
> > and what is wrong should be quite obvious if you know RTL - I don't and
> > it seems reasonably obvious to me, I just can't fix it).
> 
> No, I haven't done anything with gcc

Anyone else ?  I think you (plural) should at least have a look causing
random data corruption.

> Linuxcare.  Support for the Revolution.

And it's just in historical spirit that those actually supporting the
revolution lose their jobs ... (yes, I think the signature is quite 
inconsiderate.)


	Philipp Rumpf


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] New binutils available from cvs
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On Thu, 18 May 2000, Philipp Rumpf wrote:

> > Using `!' for comments
> > a) breaks fp condition codes.
> 
> No, it doesn't.  The condition code for fp "not equal" is "<>", not "!=".

I'm talking about floating point compare instruction conditions, for
example: "fcmp,dbl,!?>= %fr4,%fr5"

-- 
Linuxcare.  Support for the Revolution.


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715/50 hang - more info
Date: Thu, 18 May 2000 05:03:42 -0700 (PDT)
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Hi Chris,

I had the same problem on my 715/33 with lasi_82596.c.
I emailed Helge Deller who made the last changes to
this driver and he told me that there seems to be the
problem that not all interrupts from the i82596 are
delivered to the interrupt routine. The result of this
is that all 16 xmit buffers will get filled and then
the kernel hangs.

He also told me that he will have no time until 23rd
of May (approx.) to find the reason for this and to
correct it. So right now there is no way to use
NFSROOT on a 715/old.

Bob Pflederer's observations concerning I82596_DEBUG
are correct. But it is sufficient to #define it to 3
to make the driver work.

Ulrich  
--- Chris Snow <csnow@julian.uwo.ca> wrote:
> 
> I managed to find some widgets and hook the serial
> output of the HP to my
> PC, so I'm sending along the entire boot output, as
> well as my .config.
> 
> 
> output:
> ------
>               (c) Copyright Hewlett-Packard Company,
> 1991, 1992
> Portions of this code are (c) Copyright Samsung
> Electronics Co., Ltd, 91,
> 92 
> 
> PDC ROM rev. 1.3
> IODC ROM rev. 1.1
> 32 MB of memory have been configured.
> 
> 
> Selecting a system to boot.
> To stop selection process, press and hold the ESCAPE
> key.
> 
> Booting from:     lan.00a024-95c59e.3.6     boy
> 
> Hard booted.
> palo ipl chris@boy Wed May 17 18:19:21 EDT 2000
> 0/vmlinux 1991268 bytes @ 0x7800
> 0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX
> root=/dev/nfs
> nfsroot=192.168.1.2'
> Kernel: partition 0 file /vmlinux
> ELF32 executable
> prepare_loadable 0050368c 2
> 
> Entry 0010182c first 00100000 n 3
> Segment 0 load 00100000 size 1123464 mediaptr 0x1000
> Segment 1 load 00214000 size 158452 mediaptr
> 0x114000
> Segment 2 load 0023c000 size 8192 mediaptr 0x13b000
> branching to kernel entry point 0x0010182c
> The Kernel has started...
> Free memory starts at: 0xc02a8000
> PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs
> nfsroot=192.168.1.2'
> PALO initrd 0-0
> FP CCR was 0x0, will be set to 0xc0
> model   00003100 00000481 00000000 00000000 7816bc26
> ffffffff 00000004
> 0000000a 0000000a
> vers    0000000b
> CPUID vers 0 rev 0
> CPU(s): 1 x PA7100 at 50.000000 MHz
> Searching for devices in PDC firmware...  an older
> box...
> Found devices:
> 1. Stinger Optional Graphics (10) at 0xf4000000,
> versions 0x6, 0x0, 0x77,
> 0x0, 0x0
> 2. Scorpio Core BA (11) at 0xf082f000, versions 0x7,
> 0x0, 0x70, 0x0, 0x0
> 3. Scorpio Core SCSI (10) at 0xf0825000, versions
> 0x7, 0x0, 0x71, 0x0, 0x0
> 4. Scorpio Core LAN (802.3) (10) at 0xf0826000,
> versions 0x7, 0x0, 0x72,
> 0x0, 0x0
> 5. Scorpio Core HIL (10) at 0xf0821000, versions
> 0x7, 0x0, 0x73, 0x0, 0x0
> 6. Scorpio Core RS-232 (10) at 0xf0823000, versions
> 0x7, 0x0, 0x75, 0x0,
> 0x0
> 7. Scorpio Core RS-232 (10) at 0xf0822000, versions
> 0x7, 0x0, 0x75, 0x0,
> 0x0
> 8. Scorpio Core Centronics (10) at 0xf0824000,
> versions 0x7, 0x0, 0x74,
> 0x0, 0x09. Scorpio Audio (10) at 0xf1000000,
> versions 0x7, 0x0, 0x7b, 0x0,
> 0x0
> 10. Scorpio EISA BA (11) at 0xfc000000, versions
> 0x7, 0x0, 0x76, 0x0, 0x0
> 11. Scorpio (715/50) (0) at 0xfffbe000, versions
> 0x310, 0x0, 0x4, 0x0,
> 0x81
> 12. Scorpio (1) at 0xfffbf000, versions 0x17, 0x0,
> 0x9, 0x0, 0x0
> That's a total of 12 devices.
> Linux version 2.3.99-pre1 (chris@boy) (gcc version
> 2.9-hppa-991112) #8 Wed
> May 17 18:18:58 EDT 2000
> initrd: 00000000-00000000
> pagetable_init
> On node 0 totalpages: 8192
> zone(0): 4096 pages.
> zone(1): 4096 pages.
> zone(2): 0 pages.
> trap_init
> Calibrating delay loop... 42.19 BogoMIPS
> Memory: 29436k available
> kmem_test() - start
> kmem_free: Bad front redzone (objp=c1ffe004,
> name=test-cachep)
> kmem_free: Bad rear redzone (objp=c1ffe004,
> name=test-cachep)
> kmem_test() - finished
> c1ff0000 c1ff8000 c1fee000 c1ffc000
> Buffer-cache hash table entries: 1024 (order: 0,
> 4096 bytes)
> Page-cache hash table entries: 8192 (order: 3, 32768
> bytes)
> POSIX conformance testing by UNIFIX
> ASP version 1 at 0xf0800000 found.
> request_irq(259, c01bfd00, 0x0, asp, c1fe9080)
> ASP IRQ 259 EIM 0xfffe0003
> busdevice_alloc_irq(0xf0823000) on ASP 0x200 + 26 =
> 538
> Found serial #0 at 0xf0823000, IRQ 538
> ttyS00 at iomem 0xf0823800 (irq = 538) is a 16550A
> busdevice_alloc_irq(0xf0822000) on ASP 0x200 + 25 =
> 537
> Found serial #1 at 0xf0822000, IRQ 537
> ttyS00 at iomem 0xf0822800 (irq = 537) is a 16550A
> busdevice_alloc_irq(0xf0826000) on ASP 0x200 + 23 =
> 535
> Found i82596 at 0xf0826000, IRQ 535
> early initialization of device eth0 is deferred
> Linux NET4.0 for Linux 2.3
> Based upon Swansea University Computer Society
> NET3.039
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 2048 bind
> 2048)
> Starting kswapd v1.6
> Serial driver version 4.92 (2000-1-27) with
> MANY_PORTS SHARE_IRQ
> SERIAL_PCI enabled
> pty: 256 Unix98 ptys configured
> RAMDISK driver initialized: 16 RAM disks of 4096K
> size 1024 blocksize
> 82596.c: MAC of HP700 LAN blindely read from the
> prom!
> eth0: 82596 at 0xf0826000, 08 00 09 62 82 1E IRQ
> 535.
> lasi_82596.c:v1.2 02/13/2000
> eth0: lp at 0xc1fd4000 (1720 bytes), lp->scb at
> 0xc1fd4014
> request_irq(535, c01baea8, 0x0, i82596, c1fecc00)
> busdev_enable_irq(c1fe9080, 23) ASP: IMR 0x100
> busdev_disable_irq(c1fe9080, 23) ASP: IMR 0x0
> 
> ----- end of output
> 
> and here is my .config (it is the default, I haven't
> changed anything...)
> 
> .config
> -------
> #
> # Automatically generated make config: don't edit
> #
> CONFIG_PARISC=y
> # CONFIG_UID16 is not set
> 
> #
> # Code maturity level options
> #
> CONFIG_EXPERIMENTAL=y
> 
> #
> # General options
> #
> # CONFIG_SMP is not set
> CONFIG_GSC=y
> CONFIG_GSC_LASI=y
> CONFIG_PCI=y
> CONFIG_GSC_DINO=y
> # CONFIG_PCI_LBA is not set
> 
> #
> # Loadable module support
> #
> # CONFIG_MODULES is not set
> 
> #
> # General setup
> #
> CONFIG_NET=y
> CONFIG_SYSVIPC=y
> # CONFIG_BSD_PROCESS_ACCT is not set
> # CONFIG_SYSCTL is not set
> CONFIG_BINFMT_SOM=y
> # CONFIG_BINFMT_ELF is not set
> # CONFIG_BINFMT_MISC is not set
> # CONFIG_BINFMT_JAVA is not set
> 
> #
> # Block devices
> #
> 
=== message truncated ===


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From: Chris Snow <csnow@julian.uwo.ca>
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Subject: Re: [parisc-linux] 715/50 hang - more info
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> I had the same problem on my 715/33 with lasi_82596.c.
> I emailed Helge Deller who made the last changes to
> this driver and he told me that there seems to be the
> problem that not all interrupts from the i82596 are
> delivered to the interrupt routine. The result of this
> is that all 16 xmit buffers will get filled and then
> the kernel hangs.

That's what I came up with as well.

> He also told me that he will have no time until 23rd
> of May (approx.) to find the reason for this and to
> correct it. So right now there is no way to use
> NFSROOT on a 715/old.

Well, I'm going to keep playing with it over the next few days, although
I'm not sure if I'll have any success...

If I succeed in fixing anything, I'll be sure to let everyone know.


Thanks,


     Chris


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From: Philipp Rumpf <prumpf@puffin.external.hp.com>
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Subject: Re: [parisc-linux] New binutils available from cvs
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Xref: news.gmane.org gmane.linux.ports.parisc:7296

> I'm talking about floating point compare instruction conditions, for
> example: "fcmp,dbl,!?>= %fr4,%fr5"

Oh, I see.  (I stupidly only checked the condition codes tables in the
architecture manual, the floating point conditions were in the FPU
section).

So, '!' isn't usable as either line comment or '\n'-equivalent
character without hacking.  Let's just not use it ?

	Philipp Rumpf


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From: alan@lxorguk.ukuu.org.uk (Alan Cox)
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Subject: Re: [hppa-linux] Gateway instructions
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Xref: news.gmane.org gmane.linux.ports.parisc:7297

> Here's how I think it works:
> The GATE completer takes its privilege from the TLB entry for the page
> _containing_ the BRANCH-with-GATE (see 4-5 in the PARISC 2.0 book).  So
> what we do is have a page (at 0xC0000000, probably) that has
> appropriately high privilege level in the TLB, and yet is executable by
> the user-space process.  I think that means that the TLB access rights
> field is [100,11,11]:

Oh man its a vax  8)

Yeah that would be fairly believable. VMS actually does this sort of stuff
with the vax architecture equivalent for libraries - think  setuid mmap 8)


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] New binutils available from cvs
Date: Thu, 18 May 2000 23:19:31 +1000 (EST)
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On Thu, 18 May 2000, Philipp Rumpf wrote:

> > I'm talking about floating point compare instruction conditions, for
> > example: "fcmp,dbl,!?>= %fr4,%fr5"
> 
> Oh, I see.  (I stupidly only checked the condition codes tables in the
> architecture manual, the floating point conditions were in the FPU
> section).
> 
> So, '!' isn't usable as either line comment or '\n'-equivalent
> character without hacking.  Let's just not use it ?

It works quite OK as a line separator.  The assembler line separator is
not a '\n' equivalent.

-- 
Linuxcare.  Support for the Revolution.


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] New binutils available from cvs
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  In message <Pine.LNX.4.21.0005182055320.6449-100000@front.linuxcare.com.au>yo
u write:
  > On Thu, 18 May 2000, Philipp Rumpf wrote:
  > 
  > > > Using `!' for comments
  > > > a) breaks fp condition codes.
  > > 
  > > No, it doesn't.  The condition code for fp "not equal" is "<>", not "!=".
  > 
  > I'm talking about floating point compare instruction conditions, for
  > example: "fcmp,dbl,!?>= %fr4,%fr5"
Alan is correct.  A large number of the FP comparisons use '!'.  

jeff


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] New binutils available from cvs
Date: Thu, 18 May 2000 09:19:25 -0700
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Philipp Rumpf wrote:
> > b) is inconsistent with existing hp assembler.
> 
> Your point ?

I think Alan meant it breaks with existing GNU toolchain for parisc.

And even if he didn't, asking people to change assembler files
for "internal" reasons (glibc/whatever) seems like an extra hurdle
that just doesn't have to be. I'd like to make it easier for people
to migrate from HP-UX (OpenBSD/FreeBSD/mklinux/whatever) to parisc-linux.

...
> All in all even _if_ you have a reason to change it back it could have used
> some discussion.  So far you haven't.

Alan has.  But no one replied publicly. See
http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/05-May/0038.html

Paul Bame and I both replied privately that he should go ahead
and make the change. So you can blame us if you like. :^)

...
> Any idea which illegal drug the person who decided "!=" was the fp not
> equal condition code was on ;) ?

No...but I suspect the FP was developed *seperately* from the PA-RISC CPU.
Don't need drugs to get divergence - it's almost guaranteed to happen
one way or another.

> > Linuxcare.  Support for the Revolution.
> 
> And it's just in historical spirit that those actually supporting the
> revolution lose their jobs ... (yes, I think the signature is quite 
> inconsiderate.)

Without companies *like* Linuxcare, linux wouldn't have a rat's ass
chance in the business world. I think the signature is quite accurate.
And anyone with even 1% clue about linux is certainly not having
employment problems right now.  (I'm proof of that! :^)

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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From: tor@spacetec.no (Tor Arntsen)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] New binutils available from cvs
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       "Re: [parisc-linux] New binutils available from cvs" (May 18, 11:45)
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On May 18, 11:45, Alan Modra wrote:
>On Thu, 18 May 2000, Philipp Rumpf wrote:
>> Any reason for renaming cvs modules all the time instead of staying with
>> one name and perhaps not pissing off people with slow, expensive
>> connections ?
>
>Mainly so people can still easily use the old binutils.  .diff.gz came to
[...]

That's what tags and branches are for!  *Please* use CVS the way it was
meant to be used, don't use it like some old SCCS system!

It's now close to impossible to track these things.  cvs co -c doesn't show
the modules either, without keeping *very* close tracking of the mailing
list we won't even know what we should/can use.

>1.8M anyway.  I can put the diff somewhere you can get it, if you like.

Sigh.  What *for*?  See above, that's why CVS has branches and tags which
makes it easy for users to:
a) See what's in there (cvs status -v)
b) Switch between versions with ease and with minimal bandwidth
c) Keep several versions locally (copy a tree and switch to other branch or 
   rev.)

-Tor


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On Thu, May 18, 2000 at 07:26:51PM +0200, Tor Arntsen wrote:
> That's what tags and branches are for!  *Please* use CVS the way it was
> meant to be used, don't use it like some old SCCS system!

the trouble is that none of us are sufficiently skilled with CVS to cope
with the tags and branches.  there've been sufficient problems before when
we've tried to use them to convince us that it really isn't worthwhile
for this particular developmnt community.  i should note that prumpf was
one of the people who complained the loudest about the use of CVS tags.


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From: willy@thepuffingroup.com
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] move to 2.3.99pre8?
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i just thought i'd throw out a feeler to see what people think about
moving to 2.3.99pre8.  it seems reasonably stable to me, but I haven't
tried root nfs yet.  i have some conflicting things to work on right now,
but how would people feel about having friday 26th may as migration day?


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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] move to 2.3.99pre8?
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On Thu, May 18, 2000 at 05:14:49PM -0400, willy@thepuffingroup.com wrote:
> 
> i just thought i'd throw out a feeler to see what people think about
> moving to 2.3.99pre8.  it seems reasonably stable to me, but I haven't
> tried root nfs yet.  i have some conflicting things to work on right now,
> but how would people feel about having friday 26th may as migration day?

is it really necessary to sync again ? I don't see it helping us, or
is there some bugs in pre1, we need to get tid of ?

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] 715/50 hang - more info
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To: Chris Snow <csnow@julian.uwo.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:7305

Hi,
  I have just committed changes to drivers/net/lasi_82596.c and
drivers/gsc/lan.c.  Fairly big changes to lasi_82596.c, partly
just tidyup, partly improvements to cache handling.  It is still
not perfect but is a _lot_ better than it was.  The change to
lan.c was to use a different probe function on older h/w (like
my 715/75), where we need to swap the MPU_PORT, as per the message
from prumpf.  If the driver seems completely dead for you, try
enabling/disabling that word swap, and please let me know that
you needed to.

All success or failure reports welcome :-)

Richard


On Thu, May 18, 2000 at 08:31:56AM -0400, Chris Snow wrote:
> > I had the same problem on my 715/33 with lasi_82596.c.
> > I emailed Helge Deller who made the last changes to
> > this driver and he told me that there seems to be the
> > problem that not all interrupts from the i82596 are
> > delivered to the interrupt routine. The result of this
> > is that all 16 xmit buffers will get filled and then
> > the kernel hangs.
> 
> That's what I came up with as well.
> 
> > He also told me that he will have no time until 23rd
> > of May (approx.) to find the reason for this and to
> > correct it. So right now there is no way to use
> > NFSROOT on a 715/old.
> 
> Well, I'm going to keep playing with it over the next few days, although
> I'm not sure if I'll have any success...
> 
> If I succeed in fixing anything, I'll be sure to let everyone know.
> 
> 
> Thanks,
> 
> 
>      Chris
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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Subject: Re: [parisc-linux] move to 2.3.99pre8?
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On Thu, May 18, 2000 at 11:41:02PM +0200, Thomas Bogendoerfer wrote:
> On Thu, May 18, 2000 at 05:14:49PM -0400, willy@thepuffingroup.com wrote:
> > 
> > i just thought i'd throw out a feeler to see what people think about
> > moving to 2.3.99pre8.  it seems reasonably stable to me, but I haven't
> > tried root nfs yet.  i have some conflicting things to work on right now,
> > but how would people feel about having friday 26th may as migration day?
> 
> is it really necessary to sync again ? I don't see it helping us, or
> is there some bugs in pre1, we need to get tid of ?

There aren't any pressing bugs that I'm aware of (please shout if anyone
knows otherwise).  However, we don't want to diverge too much from Linus'
tree, as it makes later merges more painful.  We last merged around March
26th at the puffinfest, so it's been 2 months -- I personally feel that's
about the maximum length of time we should leave it before the changes
become too painful to merge.


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Subject: Re: [parisc-linux] move to 2.3.99pre8?
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Xref: news.gmane.org gmane.linux.ports.parisc:7307

On Thu, May 18, 2000 at 05:14:49PM -0400, willy@thepuffingroup.com wrote:
> i just thought i'd throw out a feeler to see what people think about
> moving to 2.3.99pre8.  it seems reasonably stable to me, but I haven't
> tried root nfs yet.  i have some conflicting things to work on right now,
> but how would people feel about having friday 26th may as migration day?

moving my tree to pre6 (it stil was .42) wasn't a problem and I expect
moving either tree to pre8 should be extremely easy.

pre8 also seems to be quite stable so my advice is to do it.


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From: Bjorn Helgaas <helgaas@rsn.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] Gateway instructions
Date: Thu, 18 Mar 1999 11:34:43 -0600
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>   I'm wondering if anybody's got a handle on how gateway instructions
>are supposed to work.

The important thing about the gateway instruction is how the page
containing the instruction is mapped in the TLB.  A gateway can only
promote your privilege if the access type of the page containing the
gateway instruction is 4, 5, 6, or 7, i.e., "execute and promote to
privilege level 0, 1, 2, or 3".

The kernel controls the TLB mappings, so while a user can easily generate
gateway instructions, they won't do anything useful unless he can convince
the kernel to map them with the special access rights.

HP-UX maps only a few pages in the whole system with the magic gateway
access rights.  Syscalls work by branching to specific entry points on
these pages.  For 32-bit apps, the entry address is fixed and is hard-
coded into libc.  I think HP-UX supplies the syscall entry point to
64-bit apps in a register, and crt0.s stashes it somewhere.

Since the pages are execute only (not readable or writable), users can't
change the target of the gateway instructions.  The gateway pages contain
things other than gateway instructions, of course, but if you branch to
a non-gateway instruction, you stay at user privilege level and basically
execute some random (from the user's point of view) code.

When you branch to the defined entry point, your privilege level is
promoted, a couple registers are set up for running in the kernel, and you
branch to the the kernel proper, which is mapped with normal read/execute
or read/write/execute access rights.  The privilege levels in kernel
text access rights are set to allow access only at privilege level 0,
so even though a user can address the kernel, he can't read or execute
it without going through the gateway page.


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From: Chris Snow <csnow@julian.uwo.ca>
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Subject: Re: [parisc-linux] 715/50 hang - more info
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>   I have just committed changes to drivers/net/lasi_82596.c and
> drivers/gsc/lan.c.  Fairly big changes to lasi_82596.c, partly
> just tidyup, partly improvements to cache handling.  It is still
> not perfect but is a _lot_ better than it was.  The change to
> lan.c was to use a different probe function on older h/w (like
> my 715/75), where we need to swap the MPU_PORT, as per the message
> from prumpf.  If the driver seems completely dead for you, try
> enabling/disabling that word swap, and please let me know that
> you needed to.
> 
> All success or failure reports welcome :-)


Success!  The driver works fine.  I made no modifications for word swap
(on a 715/50).

No let's see what else I can break :)


          Chris


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Subject: [parisc-linux] Simple Linux question
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------=_NextPart_000_0194_01BFC187.72715940
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

Can anyone answer this simple LINUX question:

Assume all processes are type SCHED_RR. If they all have the same =
priority, when the running process' time slice expires and it enters the =
scheduler, how can any of the other processes ever be chosen? From what =
I see in the scheduler, all processes in the run queue are going to have =
their goodness compared against that of the running process. Only if =
there priority is higher, will they be chosen.

                                                                         =
                                   Thanks

------=_NextPart_000_0194_01BFC187.72715940
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>

<META content=3Dtext/html;charset=3Diso-8859-1 =
http-equiv=3DContent-Type>
<META content=3D'"MSHTML 4.72.3612.1706"' name=3DGENERATOR>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT color=3D#000000 size=3D2>Can anyone answer this simple LINUX=20
question:</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>Assume all processes are type =
SCHED_RR. If they=20
all have the same priority, when the running process' time slice expires =
and it=20
enters the scheduler, how can any of the other processes ever be chosen? =
From=20
what I see in the scheduler, all processes in the run queue are going to =
have=20
their goodness compared against that of the running process. Only if =
there=20
priority is higher, will they be chosen.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000=20
size=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
Thanks</FONT></DIV></BODY></HTML>

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From: Philipp Rumpf <prumpf@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Tree Issues
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Xref: news.gmane.org gmane.linux.ports.parisc:7311

I hoped to hear some kind of reaction from TPG/LC before doing this,
but it doesn't seem like that will happen anytime soon.

If you're interested in my tree, you can find it at
:pserver:anonymous@cvs.linux-parisc.sourceforge.net:/cvsroot/linux-parisc.
(empty password).

I'm currently working on a 712 and a c360, so those are the machines
that it is most likely to work on; some code for a180 and 715/old hasn't
been written yet, but probably will be soon (I have those machines here,
too).

Please feel free to send any questions, comments, or bug reports either
to me or to use the facilities sourceforge provides
(http://sourceforge.net/project/?group_id=5490, I think).

[is it okay to use this list ?]

If you can't get that tree booting on your machine, please tell me.  I
can't test on all four machines at the same time, so just a simple
"doesn't boot on <machine type>" message would be very helpful.

	Philipp Rumpf


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
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To: Richard Hirst <rhirst@linuxcare.com>, Chris Snow <csnow@julian.uwo.ca>
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Hi Richard,

great work: for the first time I was now able to boot
using a NFSROOT filesystem on my 715/33. Everything
works well until the sash shell prompt.

So device support for my 715/old is nearly complete:
serial console works well and SCSI has been tested
using a HP DAT drive. Putting a real ext2 fs on a SCSI
disk is a bit complicated for me because I do not have
direct access to a Linux PC with a SCSI board. But I
will test this real soon and report back.

Ulrich 


--- Richard Hirst <rhirst@linuxcare.com> wrote:
> Hi,
>   I have just committed changes to
> drivers/net/lasi_82596.c and
> drivers/gsc/lan.c.  Fairly big changes to
> lasi_82596.c, partly
> just tidyup, partly improvements to cache handling. 
> It is still
> not perfect but is a _lot_ better than it was.  The
> change to
> lan.c was to use a different probe function on older
> h/w (like
> my 715/75), where we need to swap the MPU_PORT, as
> per the message
> from prumpf.  If the driver seems completely dead
> for you, try
> enabling/disabling that word swap, and please let me
> know that
> you needed to.
> 
> All success or failure reports welcome :-)
> 
> Richard
> 
> 
> On Thu, May 18, 2000 at 08:31:56AM -0400, Chris Snow
> wrote:
> > > I had the same problem on my 715/33 with
> lasi_82596.c.
> > > I emailed Helge Deller who made the last changes
> to
> > > this driver and he told me that there seems to
> be the
> > > problem that not all interrupts from the i82596
> are
> > > delivered to the interrupt routine. The result
> of this
> > > is that all 16 xmit buffers will get filled and
> then
> > > the kernel hangs.
> > 
> > That's what I came up with as well.
> > 
> > > He also told me that he will have no time until
> 23rd
> > > of May (approx.) to find the reason for this and
> to
> > > correct it. So right now there is no way to use
> > > NFSROOT on a 715/old.
> > 
> > Well, I'm going to keep playing with it over the
> next few days, although
> > I'm not sure if I'll have any success...
> > 
> > If I succeed in fixing anything, I'll be sure to
> let everyone know.
> > 
> > 
> > Thanks,
> > 
> > 
> >      Chris
> > 
> >
>
---------------------------------------------------------------------------
> > To unsubscribe: send e-mail to
> parisc-linux-request@thepuffingroup.com with
> > `unsubscribe' as the subject.
> > 
> > 
> 
>
---------------------------------------------------------------------------
> To unsubscribe: send e-mail to
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


__________________________________________________
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Subject: [parisc-linux] CVS cleanups
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The following files have only their CVS id string changed in our CVS
repo.  Would anyone like to fix them before we do the 2.3.99-pre8 merge
on Friday?  I'm just going through now and preparing a list of files
we'll need to pay attention to.


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On Tue, May 23, 2000 at 06:08:27PM -0400, willy@thepuffingroup.com wrote:
> 
> The following files have only their CVS id string changed in our CVS
> repo.  Would anyone like to fix them before we do the 2.3.99-pre8 merge
> on Friday?  I'm just going through now and preparing a list of files
> we'll need to pay attention to.

I really did just forget to attach the list of files, didn't I?  This cold
is getting to me.


linux-2.3/Documentation/usb/error-codes.txt
linux-2.3/Documentation/usb/uhci.txt
linux-2.3/arch/sparc/lib/ashldi3.S
linux-2.3/arch/sparc64/kernel/iommu_common.c
linux-2.3/arch/sparc64/kernel/iommu_common.h
linux-2.3/arch/sparc64/prom/map.S
linux-2.3/drivers/i2c/i2c-pcf8584.h
linux-2.3/drivers/scsi/README.aha152x
linux-2.3/drivers/telephony/ixj.c
linux-2.3/drivers/telephony/ixj.h
linux-2.3/drivers/usb/plusb.c
linux-2.3/drivers/zorro/names.c
linux-2.3/fs/cramfs/inflate/adler32.c
linux-2.3/fs/cramfs/inflate/uncompr.c
linux-2.3/fs/cramfs/inflate/zconf.h
linux-2.3/fs/cramfs/inflate/zutil.h
linux-2.3/include/asm-m68k/apollodma.h
linux-2.3/include/asm-ppc/hw_irq.h
linux-2.3/include/linux/i2c-algo-bit.h
linux-2.3/include/linux/i2c-algo-pcf.h
linux-2.3/include/linux/i2c-dev.h
linux-2.3/include/linux/i2c-elektor.h
linux-2.3/include/linux/ixjuser.h
linux-2.3/include/net/inetpeer.h
linux-2.3/net/ipv4/inetpeer.c


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the following list of files (if I remember to attach them this time...)
are the files which have been modified in both the parisc tree and Linus'
2.3.99pre8 tree.  I've omitted the files where the rcs id is the only thing
changed.

Tulip is special because we're using 2.3.99pre3's driver in the pre1 tree.
So the files which differe from pre3 are these:

drivers/net/tulip/eeprom.c
drivers/net/tulip/tulip_core.c

The following files should definitely just be overwritten:

Documentation/DMA-mapping.txt
drivers/net/pcnet32.c

the rest will require closer scrutiny on Friday.  From an initial
examination, it's not going to be too painful.  I propose we close
the tree for new checkins midnight Thursday GMT (7pm EST, 4pm PST).
After that, I guess we'll lay down a tag and start merging in 2.3.99pre8
files and then lay down another tag when we're done.  mang, will you be
around to assist us with the merge?


CREDITS
Makefile
drivers/block/rd.c
drivers/char/Config.in
drivers/char/Makefile
drivers/char/console.c
drivers/char/serial.c
drivers/net/82596.c
drivers/net/Makefile
drivers/net/Space.c
drivers/net/eepro100.c
drivers/pci/pci.c
drivers/pci/pci.ids
drivers/scsi/Makefile
drivers/scsi/hosts.c
drivers/scsi/script_asm.pl
drivers/scsi/scsi_obsolete.c
drivers/scsi/sym53c8xx_defs.h
drivers/sound/Config.in
drivers/sound/Makefile
drivers/video/Makefile
fs/Makefile
fs/exec.c
fs/nfs/nfsroot.c
include/linux/binfmts.h
include/linux/pci.h
include/linux/pci_ids.h
include/linux/string.h
include/linux/tty.h
include/linux/udf_fs_sb.h
include/linux/ufs_fs.h
init/main.c
kernel/exit.c
kernel/fork.c
kernel/printk.c
lib/string.c
mm/slab.c


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] bad asm comments
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In building gcc/binutils-2.10 today I discovered a few asm files that are 
still using ! as a comment character. They are,

./gcc/gcc/config/pa/lib2funcs-elf.S
./glibc/csu/crti.S
./glibc/csu/crtn.S
./glibc/sysdeps/hppa/__longjmp.S
./glibc/sysdeps/hppa/setjmp.S

Which need to be changed?

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com



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From: Alan Modra <alan@linuxcare.com.au>
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On Tue, 23 May 2000, Matt Taggart wrote:

> In building gcc/binutils-2.10 today I discovered a few asm files that are 
> still using ! as a comment character. They are,
> 
> ./gcc/gcc/config/pa/lib2funcs-elf.S
> ./glibc/csu/crti.S
> ./glibc/csu/crtn.S
> ./glibc/sysdeps/hppa/__longjmp.S
> ./glibc/sysdeps/hppa/setjmp.S
> 
> Which need to be changed?

Um, I only patched the kernel and palo, and was hoping someone else
would volunteer to do the rest of the tree.  I suppose I ought to fix
these too.

-- 
Linuxcare.  Support for the Revolution.


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From: willy@thepuffingroup.com
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] support for HP UFS filesystems
Date: Wed, 24 May 2000 12:53:49 -0400
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To: torvalds@transmeta.com
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Linus, this patch allows Linux to mount HP-style UFS filesystems.  Please
apply.

diff -urNX exclude linux-pre9/fs/ufs/super.c linux-2.3/fs/ufs/super.c
--- linux-pre9/fs/ufs/super.c	Mon Mar 13 15:35:39 2000
+++ linux-2.3/fs/ufs/super.c	Sun Mar 26 17:27:41 2000
@@ -55,6 +55,9 @@
  *
  * write support Daniel Pirkl <daniel.pirkl@email.cz> 1998
  * 
+ * HP/UX hfs filesystem support added by
+ * Martin K. Petersen <mkp@mkp.net>, August 1999
+ *
  */
 
 
@@ -279,6 +282,8 @@
 				ufs_set_opt (*mount_options, UFSTYPE_OPENSTEP);
 			else if (!strcmp (value, "sunx86"))
 				ufs_set_opt (*mount_options, UFSTYPE_SUNx86);
+			else if (!strcmp (value, "hp"))
+				ufs_set_opt (*mount_options, UFSTYPE_HP);
 			else {
 				printk ("UFS-fs: Invalid type option: %s\n", value);
 				return 0;
@@ -473,7 +478,7 @@
 	if (!(sb->u.ufs_sb.s_mount_opt & UFS_MOUNT_UFSTYPE)) {
 		printk("You didn't specify the type of your ufs filesystem\n\n"
 		"mount -t ufs -o ufstype="
-		"sun|sunx86|44bsd|old|nextstep|netxstep-cd|openstep ...\n\n"
+		"sun|sunx86|44bsd|old|hp|nextstep|netxstep-cd|openstep ...\n\n"
 		">>>WARNING<<< Wrong ufstype may corrupt your filesystem, "
 		"default is ufstype=old\n");
 		ufs_set_opt (sb->u.ufs_sb.s_mount_opt, UFSTYPE_OLD);
@@ -573,6 +578,19 @@
 		}
 		break;
 	
+	case UFS_MOUNT_UFSTYPE_HP:
+		UFSD(("ufstype=hp\n"))
+		uspi->s_fsize = block_size = 1024;
+		uspi->s_fmask = ~(1024 - 1);
+		uspi->s_fshift = 10;
+		uspi->s_sbsize = super_block_size = 2048;
+		uspi->s_sbbase = 0;
+		flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
+		if (!(sb->s_flags & MS_RDONLY)) {
+			printk(KERN_INFO "ufstype=hp is supported read-only\n");
+			sb->s_flags |= MS_RDONLY;
+ 		}
+ 		break;
 	default:
 		printk("unknown ufstype\n");
 		goto failed;
@@ -598,18 +616,30 @@
 #if defined(__LITTLE_ENDIAN) || defined(__BIG_ENDIAN) /* sane bytesex */
 	switch (usb3->fs_magic) {
 		case UFS_MAGIC:
+	        case UFS_MAGIC_LFN:
+	        case UFS_MAGIC_FEA:
+	        case UFS_MAGIC_4GB:
 			swab = UFS_NATIVE_ENDIAN;
 			goto magic_found;
 		case UFS_CIGAM:
+	        case UFS_CIGAM_LFN:
+	        case UFS_CIGAM_FEA:
+	        case UFS_CIGAM_4GB:
 			swab = UFS_SWABBED_ENDIAN;
 			goto magic_found;
 	}
 #else /* bytesex perversion */
 	switch (le32_to_cpup(&usb3->fs_magic)) {
 		case UFS_MAGIC:
+		case UFS_MAGIC_LFN:
+	        case UFS_MAGIC_FEA:
+	        case UFS_MAGIC_4GB:
 			swab = UFS_LITTLE_ENDIAN;
 			goto magic_found;
 		case UFS_CIGAM:
+		case UFS_CIGAM_LFN:
+	        case UFS_CIGAM_FEA:
+	        case UFS_CIGAM_4GB:
 			swab = UFS_BIG_ENDIAN;
 			goto magic_found;
 	}
diff -urNX exclude linux-pre9/include/linux/ufs_fs.h linux-2.3/include/linux/ufs_fs.h
--- linux-pre9/include/linux/ufs_fs.h	Tue Mar 14 21:36:40 2000
+++ linux-2.3/include/linux/ufs_fs.h	Sun Mar 26 17:29:05 2000
@@ -18,6 +18,10 @@
  * Niels Kristian Bech Jensen <nkbj@image.dk>.
  *
  * Write support by Daniel Pirkl <daniel.pirkl@email.cz>
+ *
+ * HP/UX hfs filesystem support added by
+ * Martin K. Petersen <mkp@mkp.net>, August 1999
+ *
  */
 
 #ifndef __LINUX_UFS_FS_H
@@ -38,6 +42,30 @@
 #define UFS_MAGIC 0x00011954
 #define UFS_CIGAM 0x54190100 /* byteswapped MAGIC */
 
+
+/* HP specific MAGIC values */
+
+#define UFS_MAGIC_LFN   0x00095014 /* fs supports filenames > 14 chars */
+#define UFS_CIGAM_LFN   0x14500900 /* srahc 41 < semanelif stroppus sf */
+
+#define UFS_MAGIC_SEC   0x00612195 /* B1 security fs */
+#define UFS_CIGAM_SEC   0x95216100
+
+#define UFS_MAGIC_FEA   0x00195612 /* fs_featurebits supported */
+#define UFS_CIGAM_FEA   0x12561900
+
+#define UFS_MAGIC_4GB   0x05231994 /* fs > 4 GB && fs_featurebits */
+#define UFS_CIGAM_4GB   0x94192305
+
+/* Seems somebody at HP goofed here. B1 and lfs are both 0x2 !?! */
+#define UFS_FSF_LFN     0x00000001 /* long file names */
+#define UFS_FSF_B1      0x00000002 /* B1 security */
+#define UFS_FSF_LFS     0x00000002 /* large files */
+#define UFS_FSF_LUID    0x00000004 /* large UIDs */
+
+/* End of HP stuff */
+
+
 #define UFS_BSIZE	8192
 #define UFS_MINBSIZE	4096
 #define UFS_FSIZE	1024
@@ -111,7 +139,7 @@
 #define UFS_MOUNT_ONERROR_UMOUNT	0x00000004
 #define UFS_MOUNT_ONERROR_REPAIR	0x00000008
 
-#define UFS_MOUNT_UFSTYPE		0x000007F0
+#define UFS_MOUNT_UFSTYPE		0x00000FF0
 #define UFS_MOUNT_UFSTYPE_OLD		0x00000010
 #define UFS_MOUNT_UFSTYPE_44BSD		0x00000020
 #define UFS_MOUNT_UFSTYPE_SUN		0x00000040
@@ -119,6 +147,7 @@
 #define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD	0x00000100
 #define UFS_MOUNT_UFSTYPE_OPENSTEP	0x00000200
 #define UFS_MOUNT_UFSTYPE_SUNx86	0x00000400
+#define UFS_MOUNT_UFSTYPE_HP	        0x00000800
 
 #define ufs_clear_opt(o,opt)	o &= ~UFS_MOUNT_##opt
 #define ufs_set_opt(o,opt)	o |= UFS_MOUNT_##opt


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From: Cary Coutant <cary@cup.hp.com>
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Subject: Re: [hppa-linux] Gateway instructions
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The PSW B bit is set to indicate that an instruction is executing in the 
delay slot of another branch. Gateway instructions trap if the B bit is 
set to prevent a malicious process from using sequence like the following 
to gain a higher privilege level:

     B    gateway
     B    my_routine

Without this protection, the first branch to the gateway instruction 
would promote the privilege level, but control would immediately be 
transferred to the user's own code. 

Branches in delay slots are tricky; here's what's really happening in the 
hardware:

                                       PC offset queue after instruction
    PC           Instruction           head         tail

    user+0       ...                   user+4       user+8
    user+4       B gateway             user+8       gateway
    user+8       B my_routine          gateway      my_routine
    gateway      B,GATE syscall        my_routine   syscall
    my_routine   B my_routine+4        syscall      my_routine+4
    syscall      ...                   my_routine+4 my_routine+8
    my_routine+4 ...

When a page's access rights are 4, 5, 6, or 7, a gateway instruction on 
that page causes the privilege promotion. Most HP-UX system calls are 
branches to a common gateway instruction on a gateway page in the fourth 
quadrant. This gateway instruction then branches to a common syscall 
entry sequence that ultimately switches on the syscall number passed in a 
GR. Some "lightweight" syscalls may be implemented with their own 
gateways.

The B bit is not a problem as long as the delay slot of the branch to the 
gateway is either nullified or filled in with a non-branch instruction. 
For example,

    LDIL L'GATEWAY,%r1
    BLE  R'GATEWAY(%sr7,%r1)
    LDO  sycallnum,%r22



Cary Coutant
Hewlett-Packard Co.
Application Delivery Lab


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From: Pavel Roskin <pavel_roskin@geocities.com>
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Subject: [parisc-linux] Serial support in IPL
Date: Wed, 24 May 2000 17:22:46 -0400 (EDT)
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Hello!

I'm completely new to PA/Linux and I'm not subscribed to the list, so
excuse me my dummy questions.

I've got C160L without monitor. I also don't know how to connect the
console. There is a connector "HP-HIL" which is somewhat similar to RJ-45,
but I don't know the wiring, and I'm not sure if it's the PDC console.

If the hard drive is connected, I don't see anything interesting except a
packet on the ethernet interface containing words:

HP LAN loop back test packet. LAN2 driver version 1

If I disconnect the drive, the box sends a bootp request and then a tftp
request. I can feed it with the linux kernel, but I see nothing on the
serial port.

If I use a fake kernel it is requested only once. The real kernel is
requested two or three times. I believe, this means that IPL actually
tries to "rewind" tftp to get the kernel.

I'm affraid that I need a version of IPL with serial console support to
get any further. ipl_c.c contains encouraging words:

 * Revision 1.24 1999/10/15 19:30:30 deller
 *
 * The serial console works now !

But it is just revision 1.3 in the anonymous CVS. There must be historic
versions with serial support using different revision numbering, right?

Can anybody build a kernel with the serial support at least in IPL
(ideally, in the kernel too)? Thank you in advance.

Regards,
Pavel Roskin


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Serial support in IPL
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Xref: news.gmane.org gmane.linux.ports.parisc:7321


Pavel Roskin writes...

> I've got C160L without monitor. I also don't know how to connect the
> console. There is a connector "HP-HIL" which is somewhat similar to RJ-45,
> but I don't know the wiring, and I'm not sure if it's the PDC console.

The console is probably set to graphics, but if you boot without a keyboard 
plugged in it should go to the first serial port(unless the console path is 
set to something weird).

> If the hard drive is connected, I don't see anything interesting except a
> packet on the ethernet interface containing words:
> 
> HP LAN loop back test packet. LAN2 driver version 1

It's booting off the primary path(the disk). The disk probably still has HP-UX 
on it and that packet is the result of the driver loading.

> If I disconnect the drive, the box sends a bootp request and then a tftp
> request.

In this case the primary path failed and it's trying the secondary path which 
is lan.

> I can feed it with the linux kernel, but I see nothing on the
> serial port.

A couple suggestions(obvious but worth checking),

- Make sure all keyboards are unplugged
- Have you tried both serial ports?
- Are you sure your serial console is working?
- If you are connecting computer to computer be sure to use a null modem cable.
- Use 9600,8,N,1

> If I use a fake kernel it is requested only once. The real kernel is
> requested two or three times. I believe, this means that IPL actually
> tries to "rewind" tftp to get the kernel.
> 
> I'm affraid that I need a version of IPL with serial console support to
> get any further. ipl_c.c contains encouraging words:
> 
>  * Revision 1.24 1999/10/15 19:30:30 deller
>  *
>  * The serial console works now !
> 

This only affect after the system starts booting. No matter what you should be 
seeing the firmware interface on the console(whatever it's set to).

If none of the above work it could be that your console path is set to 
something weird. You might be able to fix it by blindly changing it. If you 
can't get it to work let me know and I'll post a keystroke recipe to fix it.

-- 
Matt Taggart
taggart@fc.hp.com



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Xref: news.gmane.org gmane.linux.ports.parisc:7322

On Wed, May 24, 2000 at 05:22:46PM -0400, Pavel Roskin wrote:
> I've got C160L without monitor. I also don't know how to connect the
> console. There is a connector "HP-HIL" which is somewhat similar to RJ-45,
> but I don't know the wiring, and I'm not sure if it's the PDC console.

This is the keyboard connector.  Some older C-class workstations have both
HIL and PS/2; forget it exists.

> If I use a fake kernel it is requested only once. The real kernel is
> requested two or three times. I believe, this means that IPL actually
> tries to "rewind" tftp to get the kernel.

IPL, parts of the kernel and the boot interface all use the console device
selected in nvram.  my guess is this is graphics (since you don't see
anything on your serial port when booting the machine ?), so you should
either connect a monitor or try to remove all keyboards.

> I'm affraid that I need a version of IPL with serial console support to
> get any further. ipl_c.c contains encouraging words:

You should make sure you have a working firmware console first (IPL does
not really care whether it's connected to serial or graphics).

>  * Revision 1.24 1999/10/15 19:30:30 deller
>  *
>  * The serial console works now !

That comment is in ipl_c.c only because the command line was changed and
it was set there back then.

	Philipp Rumpf


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Subject: Re: [parisc-linux] Serial support in IPL
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Hello, Matt!

> A couple suggestions(obvious but worth checking),
> 
> - Make sure all keyboards are unplugged
> - Have you tried both serial ports?
> - Are you sure your serial console is working?

The cable was bad. Now it works!!! Thank you for the tip!

Now I can interact with firmware and IPL. I can edit the prompt and load
the kernel. But the kernel doesn't show anything:

Please enter the command-line:
/stand/vmlinux HOME=/ TERM=LINUX console=tty

SOM-Kernel:
aux_header_location: 00000080
som       : 01000080
exec_dfile: 00145000
exec_dsize: 000B9000
exec_dmem : C01F5000
exec_tfile: 00050000
exec_tsize: 000F4008
exec_tmem : C0100000
exec_bsize: 00060FE0
exec_entry: C0100000
Code at 0x00100000, size=0x000F4008
Data at 0x001F5000, size=0x000B9000
BSS  at 0x002AE000.
exec_entry: C0100000

Transferring control to kernel. (At entry point 0x00100000)

That's all I see. I have tried console=serial, console=ttyS0, I have tried
to remove the "console" parameter - no effect. I cannot see where that
"console" parameter is parsed.

I'm using Image-20000218.bin

Anyway, I have yet a lot of things to try (including compiling the latest
version). Thank you for your help.

Regards,
Pavel Roskin


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From: Michael Ang <mang@subcarrier.org>
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Subject: Re: [parisc-linux] [MERGE] trouble files
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I'll be available to help, but won't have a machine to test on.  I just
got a souped up 712 (thanks to the Fort Collins crew!), but haven't
scrounged up the required cables yet.

	- Mike.

willy@thepuffingroup.com wrote:
> 
> I propose we close
> the tree for new checkins midnight Thursday GMT (7pm EST, 4pm PST).
> After that, I guess we'll lay down a tag and start merging in 2.3.99pre8
> files and then lay down another tag when we're done.  mang, will you be
> around to assist us with the merge?


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From: Alan Modra <alan@linuxcare.com.au>
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I've patched these gcc files for the new binutils.  They ought to still
work with the old binutils too.

gcc/longlong.h
gcc/config/pa/lib1linux.asm
gcc/config/pa/lib2funcs-elf.S
gcc/config/pa/lib2funcs.asm

And these glibc files too.

csu/Makefile
stdlib/longlong.h
sysdeps/hppa/__longjmp.S
sysdeps/hppa/add_n.s
sysdeps/hppa/dl-machine.h
sysdeps/hppa/lshift.s
sysdeps/hppa/rshift.s
sysdeps/hppa/setjmp.S
sysdeps/hppa/sub_n.s
sysdeps/hppa/udiv_qrnnd.s
sysdeps/hppa/hppa1.1/addmul_1.s
sysdeps/hppa/hppa1.1/mul_1.s
sysdeps/hppa/hppa1.1/submul_1.s
sysdeps/hppa/hppa1.1/udiv_qrnnd.s
sysdeps/unix/sysv/linux/bits/errno.h

The csu/Makefile patch should put to rest the problem with csu/crti.S and
csu/crtn.S

-- 
Linuxcare.  Support for the Revolution.




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On Tue, May 23, 2000 at 08:07:50PM -0400, willy@thepuffingroup.com wrote:
> 
> the following list of files (if I remember to attach them this time...)
> are the files which have been modified in both the parisc tree and Linus'
> 2.3.99pre8 tree.  I've omitted the files where the rcs id is the only thing
> changed.

> drivers/net/82596.c

I don't believe we use that; I guess we started modifying it and then
created our own lasi_82596.c from it.  I'll check if anything that
changed in 82596.c needs feeding back in to lasi_82596.c.

Richard


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From: Alan Modra <alan@linuxcare.com.au>
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And yet some more glibc files need patching

configure.in
config.h.in
configure
include/libc-symbols.h 
sysdeps/unix/sysv/linux/hppa/sysdep.h

The configury changes are so we can get the line separator and comment
char right for include/libc-symbols.h, which uses multiple assembler
instructions per cpp macro.  I can see why there was a strong desire to
use `;' as the line separator...

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Sam Creasey <sammy@oh.verio.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Ethernet driver issues....
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This message appeared on the m68k list today, I've had some of these
issues with the lasi ethernet driver on my 712....  any change with a
newer driver as listed below?


"UN-altered REPRODUCTION and DISSEMINATION of this IMPORTANT
Information is ENCOURAGED, ESPECIALLY to COMPUTER BULLETIN BOARDS."
	-- Robert E. McElwaine



---------- Forwarded message ----------
Date: Thu, 25 May 2000 14:26:45 +0100
From: Richard Hirst <rhirst@linuxcare.com>
To: reinhard arlt <reinhard.arlt@t-online.de>
Cc: Linux/m68k <linux-m68k@lists.linux-m68k.org>
Subject: Re: linux-2.3.99-pre2 on mvme177 (fwd)
Resent-Date: Thu, 25 May 2000 15:28:25 +0200 (MET DST)
Resent-From: linux-m68k@phil.uni-sb.de

> 3. The ethernet driver complains about returning buffers on hard irq
> level. Is this because of the  higher warning level in the driver ?
**> 4. There is a general problem with the ethernet driver, as it starts
**> slowly, with tx timeouts etc.

Pick up 82596.c from an official 2.3.99-pre6 or later; that should
work fine.



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On Thu, May 25, 2000 at 09:55:01AM -0400, Sam Creasey wrote:
> This message appeared on the m68k list today, I've had some of these
> issues with the lasi ethernet driver on my 712....  any change with a
> newer driver as listed below?

I've seen this issue and blamed it on console driver issues (I couldn't
reproduce it on a 712/60 running sticon, it did happen on a 715/33 using
iodccon).

I'll try to see whether merging the new changes helps.

	Philipp Rumpf


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Subject: Re: [hppa-linux] memory layout
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Alan Cox wrote:
> If you want to run PH/UX binaries then you need to probably follow their
> layout

Yeah, but OpenBSD runs their binaries and seems to use the 0xC0000000
division.

> The m68k people use the 'spaces' equivalent on the m68k quite heavily

So we should be reading up on the spaces use in the arch/m68k code, then
=).

Mike

-- 
351839.03 300276.13


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On Thu, May 25, 2000 at 09:55:01AM -0400, Sam Creasey wrote:
> 
> This message appeared on the m68k list today, I've had some of these
> issues with the lasi ethernet driver on my 712....  any change with a
> newer driver as listed below?

The changes that went in to 82596.c for 2.3.99-pre6 are already in
our lasi_82596.c source, under cvs.  I committed them about a week
ago and have had only positive reports since.  Give it a try on
your 712...

Richard


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In-Reply-To: <20000525093530.C1338@linuxcare.com>; from Richard Hirst on Thu, May 25, 2000 at 09:35:30AM +0100
Xref: news.gmane.org gmane.linux.ports.parisc:7332

On Thu, May 25, 2000 at 09:35:30AM +0100, Richard Hirst wrote:
> > drivers/net/82596.c
> 
> I don't believe we use that; I guess we started modifying it and then
> created our own lasi_82596.c from it.  I'll check if anything that
> changed in 82596.c needs feeding back in to lasi_82596.c.

Helge already mailed me to inform me we can lose all our current
modifications to that file.  You don't need to check it; thanks for
noticing :-)


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Subject: [parisc-linux] Free Hardware!
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Xref: news.gmane.org gmane.linux.ports.parisc:7333

Alex, I was thinking of seding out something along the following lines:

---

Thanks to the generosity of several HP employees and the HP equipment
recycling system, we have a number of systems to donate to developers.
If you feel you could make good use of one of these systems and help
the port along, please reply to me and we'll try to decide who gets one.
Suggestions of how to decide who is sufficiently deserving to receive
machines will also be gratefully accepted :-)

These are older systems; mostly 712/60, 712/80 and 715/50 systems.
They are without monitors, but we do have keyboards for the 712 systems;
these can use standard VGA monitors.  Some have hard discs, all have
network (the 715/50 only has AUI; the 712 has 10baseT as well), some
have floppy discs, some have telephony cards, some have extra video cards.

---

I was also thinking about putting some of the gigabit ethernet cards
for the K-class that grant shipped us up on eBay to finance shipping
the systems to developers.  What do you think?


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Parallel driver for lasi/asp
Date: Thu, 25 May 2000 21:28:18 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:7334

Hello Puffins & Linuxcare's,

after nearly half a year absence - in which I finished university yesterday - 
from the parisc-porting effort and silently lurking and following the list 
I'm now able to do some programming again.

I just committed a parallel-port-driver for lasi and asp-machines which I 
hacked up yesterday. This driver is mainly based on the parport_pc.c-driver 
and I don't have any clue, if it really works ! 

As Murphy's law says, my printer broke just in the moment I wanted to print 
my thesis last week, and so I now had to test the driver with an old 9-dot 
matrix-printer. The problem is, that all characters printed with this driver 
shows up in greek-letters, so I verified the output with the printer 
connected to my Intel-machine and I got the same result !
So I think the driver **may** work, but I can't test it !
Because of that it would be great to get any success or failure reports.....

Helge.


-- Private Note: (I hope this will be allowed here once on this list) --
Since I just finished university, I'm now searching for a good Unix / Linux / 
(parisc)-job near Duesseldorf / Germany.....
If someone is interested, please mail me privately at <deller@gmx.de>.
-----------------------------------------------------


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Subject: Re: [parisc-linux] Free Hardware!
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Xref: news.gmane.org gmane.linux.ports.parisc:7335

Hello, 
 I have 4 715/50's and one 715/75 and they do not use vga monitors 
it's a standard VGA plug but it's RGBsync on Green 
I hope this nips some VGA questions before they start. 
Terry


catfish: icq #20116127


On Thu, 25 May 2000 willy@thepuffingroup.com wrote:

> Alex, I was thinking of seding out something along the following lines:
> 
> ---
> 
> Thanks to the generosity of several HP employees and the HP equipment
> recycling system, we have a number of systems to donate to developers.
> If you feel you could make good use of one of these systems and help
> the port along, please reply to me and we'll try to decide who gets one.
> Suggestions of how to decide who is sufficiently deserving to receive
> machines will also be gratefully accepted :-)
> 
> These are older systems; mostly 712/60, 712/80 and 715/50 systems.
> They are without monitors, but we do have keyboards for the 712 systems;
> these can use standard VGA monitors.  Some have hard discs, all have
> network (the 715/50 only has AUI; the 712 has 10baseT as well), some
> have floppy discs, some have telephony cards, some have extra video cards.
> 
> ---
> 
> I was also thinking about putting some of the gigabit ethernet cards
> for the K-class that grant shipped us up on eBay to finance shipping
> the systems to developers.  What do you think?
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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From: Philipp Rumpf <prumpf@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Free Hardware!
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Xref: news.gmane.org gmane.linux.ports.parisc:7336

On Thu, May 25, 2000 at 08:27:38PM -0500, T. Martin wrote:
>  I have 4 715/50's and one 715/75 and they do not use vga monitors 
> it's a standard VGA plug but it's RGBsync on Green 
> I hope this nips some VGA questions before they start. 

there's a small switch behind the monitor sticker (at least on my
715/33) that makes it work with a VGA monitor (definitely _not_ a
SOG monitor).

Could someone verify this switch exists and works on 715/50 and /75
too ?  (/64, /80, /100 use Artist so should be fine).

	Philipp Rumpf


From - Thu Nov 08 21:12:37 2018
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From: "T. Martin" <catfish@alltel.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Free Hardware!
Date: Thu, 25 May 2000 20:39:00 -0500 (CDT)
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Mine have the small switch too, 
but all it does is change the fixed freq of the required monitor. 
I have an HP Apollo A2287A 1024x768 and the 715/75 was set for a higher
resolution of 1280x1024 via the toggle switch. 


catfish: icq #20116127


On Thu, 25 May 2000, Philipp Rumpf wrote:

> On Thu, May 25, 2000 at 08:27:38PM -0500, T. Martin wrote:
> >  I have 4 715/50's and one 715/75 and they do not use vga monitors 
> > it's a standard VGA plug but it's RGBsync on Green 
> > I hope this nips some VGA questions before they start. 
> 
> there's a small switch behind the monitor sticker (at least on my
> 715/33) that makes it work with a VGA monitor (definitely _not_ a
> SOG monitor).
> 
> Could someone verify this switch exists and works on 715/50 and /75
> too ?  (/64, /80, /100 use Artist so should be fine).
> 
> 	Philipp Rumpf
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


From - Thu Nov 08 21:12:37 2018
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From: "T. Martin" <catfish@alltel.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Free Hardware!(Monitor selection)
Date: Thu, 25 May 2000 20:43:13 -0500 (CDT)
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I appoligize if im wrong, but thats what I was lead to belive awhile back
on this list. 


catfish: icq #20116127




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From: Grant Grundler <grundler@cup.hp.com>
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Mathew (and others),

I'm posting these comments so the same files don't get done twice.
And I think someone who has clue could do me a favor and submit
a patch to linus for a few minor things. So far, this merge looks
pretty easy.

...
drivers/char/Config.in
	Added CONFIG_GSC_LASI support for serial console support.

drivers/char/Makefile
	Added CONFIG_GSC_PS2 (gsc_ps2.o keyb_at.o) support
	Added CONFIG_HIL support

drivers/char/console.c
	Not sure we want the mod to vt_console_device().
	Seems we end up invoking MKDEV() twice.

	TODO:
	a) Need to add #ifdef __hppa__ (or something) around
	  "unregister_console(&pdc_cons)" invocation.
	b) Added CON_CONSDEV | CON_ENABLED to vt_console_driver[].
           Shouldn't this have #ifdef __hppa__ around it too?
	   This might not get accepted even with ifdefs...<sigh>.

drivers/char/serial.c
	Added CONFIG_GSC support.
	Should be straight forward to apply to pre8.
	Not sure "#ifndef __hppa__" code applies to PCI platforms as well.
	Certainly not to A400/L/N-class platforms.

...
> drivers/net/eepro100.c
	I had changed the default be "#define USE_IO".
	We wouldn't need this if MMIO BARs had kernel virtual addresses. 

> drivers/pci/pci.c
	"Bug" in linus' tree. spinlock_t declaration is getting picked
	up from spinlock.h by "accident" (included by another header file).
	Could someone submit this as a patch to linus?

> drivers/pci/pci.ids
	Please include this with pci.c in the patch.
	mkp added this for suckyio stuff.

...
> include/linux/pci.h
	Prumpf fixed a stub function in linus' tree.
	Another candidate to join pci.c patch submittal.

> include/linux/pci_ids.h
	goes with pci.ids above.

enjoy,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Subject: [parisc-linux] HP 9000 800/G30
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Dear Dev's,

Franz, a friend of mine got a HP 9000 800/G30 from 
a customer very cheap.

I would like to use this machine as one of his webserver with
apache, mysql, php3.

Is there port from Linux which will work on this machine.
What would I have to do. I have Suse 6.4 at home.?

Thank you very much
Andreas









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Cary Coutant wrote:
> When a page's access rights are 4, 5, 6, or 7, a gateway instruction on
> that page causes the privilege promotion. Most HP-UX system calls are
> branches to a common gateway instruction on a gateway page in the fourth
> quadrant. This gateway instruction then branches to a common syscall
> entry sequence that ultimately switches on the syscall number passed in a
> GR. Some "lightweight" syscalls may be implemented with their own
> gateways.

OK, so you don't have a spot on the page for each syscall?  I was
thinking that we'd want to do that, since we're going to use the whole
page anyway and it would make things a little quicker by eliminating the
later dispatch-by-syscall step.

I presume that the syscall gateway page layout is part of the HP-UX
kernel/user ABI though, so we'll be following your lead for SOM/HP-ELF
binaries anyway.

> The B bit is not a problem as long as the delay slot of the branch to the
> gateway is either nullified or filled in with a non-branch instruction.
> For example,
> 
>     LDIL L'GATEWAY,%r1
>     BLE  R'GATEWAY(%sr7,%r1)
>     LDO  sycallnum,%r22

Someday (maybe today, if I get all my work done =) ), I'll learn to read
that.

Mike

-- 
368177.00 314980.91


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Hallo,

Thanks for your answer,
So You think it doesn't make sense to try Pa-Risc Portation
for this machine :-(
Thanks Andreas


----- Original Message ----- 
From: Gyula Matics <mgyula@pi.satimex.tvnet.hu>
To: an.rei <an.rei@aon.at>
Sent: Friday, May 26, 2000 6:15 PM
Subject: Re: [parisc-linux] HP 9000 800/G30


> currently you are better off by running hpux on that machine.
> 
> parisc-linux is far from usable as a server. There is
> no userspace at all. Only the kernel is what kind of works.
> 
> A G30 is a very old machine using a proprietary bus
> and I'm not sure if it ever will be supported.
> 
> Gyula
> 


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Subject: [parisc-linux] -pre9 patch for PCI
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Linus,
Here some things we (parisc port) found in the common code.
Mostly minor stuff.

drivers/pci/pci.c 
        spinlock_t declaration is getting picked up "accident".
	spinlock.h is included by another header file. 

drivers/pci/pci.ids 
        Martin Peterson (mkp@mkp.net) added SuperIO id's (aka suckyio :^).

include/linux/pci.h 
        Philipp Rumpf (prumpf@tux.org) fixed a stub function.

include/linux/pci_ids.h 
        goes with pci.ids above. 

thanks,
grant

Grant Grundler
grundler@puffin.external.hp.com


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Grant Grundler wrote:
> Linus,
> Here some things we (parisc port) found in the common code.
> Mostly minor stuff.


Alan Cox replied:
| You got patches for those ?

My bad.  I'm tired, had to leave to a funeral, and accidentally sent
out that e-mail prematurely when shutting down my machine.
My apologies.

I had the -pre1 diff (thanks to willy) but not the -pre9 diff.
At willy's suggestion, appended now are patches for -test1:

	drivers/pci/pci.c
	drivers/pci/pci.ids
	include/linux/pci_ids.h

include/linux/pci.h is already fixed in -test1.

apologies again,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


diff -urN linux-2.4.0-test1/drivers/pci/pci.c linux-ggg/drivers/pci/pci.c
--- linux-2.4.0-test1/drivers/pci/pci.c	Fri Apr 28 23:05:24 2000
+++ linux-ggg/drivers/pci/pci.c	Fri May 26 14:01:34 2000
@@ -18,6 +18,7 @@
 #include <linux/init.h>
 #include <linux/malloc.h>
 #include <linux/ioport.h>
+#include <linux/spinlock.h>
 #include <linux/pm.h>
 
 #include <asm/page.h>
diff -urN linux-2.4.0-test1/drivers/pci/pci.ids linux-ggg/drivers/pci/pci.ids
--- linux-2.4.0-test1/drivers/pci/pci.ids	Wed May 24 17:52:52 2000
+++ linux-ggg/drivers/pci/pci.ids	Fri May 26 14:06:06 2000
@@ -238,11 +238,12 @@
 100a  Phoenix Technologies
 100b  National Semiconductor Corporation
 	0001  DP83810
-	0002  87415
+	0002  87415/87560 IDE
+	000e  87560 Legacy I/O
 	000f  OHCI Compliant FireWire Controller
 	0011  National PCI System I/O
 	0012  USB Controller
-	d001  87410
+	d001  87410 IDE
 100c  Tseng Labs Inc
 	3202  ET4000/W32p rev A
 	3205  ET4000/W32p rev B
diff -urN linux-2.4.0-test1/include/linux/pci_ids.h linux-ggg/include/linux/pci_ids.h
--- linux-2.4.0-test1/include/linux/pci_ids.h	Wed May 24 08:29:47 2000
+++ linux-ggg/include/linux/pci_ids.h	Fri May 26 14:09:57 2000
@@ -190,6 +190,8 @@
 
 #define PCI_VENDOR_ID_NS		0x100b
 #define PCI_DEVICE_ID_NS_87415		0x0002
+#define PCI_DEVICE_ID_NS_87560_LIO      0x000e
+#define PCI_DEVICE_ID_NS_87560_USB      0x0012
 #define PCI_DEVICE_ID_NS_87410		0xd001
 
 #define PCI_VENDOR_ID_TSENG		0x100c


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> My bad.  I'm tired, had to leave to a funeral, and accidentally sent

Commiserations

> apologies again,

None needed

Alan


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Xref: news.gmane.org gmane.linux.ports.parisc:7346

Hi all,
kernel now compiles with default .config but dies in the linker with:

hppa1.1-linux-ld  -T /linux/grundler/linux-2.3/arch/parisc/vmlinux.lds  arch/parisc/real/head.o  init/main.o init/version.o \
        --start-group \
        arch/parisc/kernel/pdc_cons.o arch/parisc/kernel/process.o arch/parisc/real/real.o /linux/grundler/linux-2.3/arch/parisc/lib/lib.a arch/parisc/mm/mm.o arch/parisc/kernel/kernel.o arch/parisc/hpux/hpux.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o arch/parisc/kernel/init_task.o \
        drivers/block/block.a drivers/char/char.o drivers/net/net.o  drivers/pci/pci.a drivers/gsc/gsc.a \
        net/network.a \
        /linux/grundler/linux-2.3/arch/parisc/lib/lib.a /linux/grundler/linux-2.3/lib/lib.a  \
        --end-group \
        -o vmlinux
mm/mm.o: In function `L1575':
mm/mm.o(.text+0x15ec): undefined reference to `clear_user_page'
fs/fs.o: In function `set_fs_altroot':
fs/fs.o(.text+0x11a98): undefined reference to `__emul_prefix'
fs/fs.o: In function `L1184':
fs/fs.o(.text.init+0x18fc): undefined reference to `nfs_debug'
ipc/ipc.o: In function `L1833':
ipc/ipc.o(.text+0x7088): undefined reference to `clear_user_page'
net/network.a(sunrpc.o): In function `rpc_create_client':
sunrpc.o(.text+0x360): undefined reference to `rpc_debug'
make: *** [vmlinux] Error 1

Thanks to all who helped!

later,
grant


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Xref: news.gmane.org gmane.linux.ports.parisc:7347

On Fri, May 26, 2000 at 04:26:35PM -0700, Grant Grundler wrote:
> mm/mm.o: In function `L1575':
> mm/mm.o(.text+0x15ec): undefined reference to `clear_user_page'
> ipc/ipc.o: In function `L1833':
> ipc/ipc.o(.text+0x7088): undefined reference to `clear_user_page'

fixed.

> fs/fs.o: In function `set_fs_altroot':
> fs/fs.o(.text+0x11a98): undefined reference to `__emul_prefix'

fixed.

> fs/fs.o: In function `L1184':
> fs/fs.o(.text.init+0x18fc): undefined reference to `nfs_debug'
> net/network.a(sunrpc.o): In function `rpc_create_client':
> sunrpc.o(.text+0x360): undefined reference to `rpc_debug'

can't see why you're having trouble here.  those variables are defined in
net/sunrpc/sysctl.c.  is that file being built?  i'm getting a toolchain
up here so I can try to reproduce.  [Dead hard drives SUCK].

> make: *** [vmlinux] Error 1
> 
> Thanks to all who helped!

Yes, thanks to everyone!  I'd prefer if people still didn't commit until
we lay down a tag signifying end-of-merge.


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Xref: news.gmane.org gmane.linux.ports.parisc:7348

> > fs/fs.o: In function `L1184':
> > fs/fs.o(.text.init+0x18fc): undefined reference to `nfs_debug'
> > net/network.a(sunrpc.o): In function `rpc_create_client':
> > sunrpc.o(.text+0x360): undefined reference to `rpc_debug'
> 
> can't see why you're having trouble here.  those variables are defined in
> net/sunrpc/sysctl.c.  is that file being built?  i'm getting a toolchain
> up here so I can try to reproduce.  [Dead hard drives SUCK].

grant: did you have CONFIG_SYSCTL set ?  if you didn't, that might
explain your problems.


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> grant: did you have CONFIG_SYSCTL set ?  if you didn't, that might
> explain your problems.

Okay, by the look of things RPC_DEBUG doesn't make sense if you don't
have CONFIG_SYSCTL too.  RPC_DEBUG always gets defined in current 2.3
versions, and presumably will be undefined in a stable kernel version.

I wouldn't really consider this a bug, but if anyone does he should
probably report it to whoever is working on that code in 2.3.

	Philipp Rumpf


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Xref: news.gmane.org gmane.linux.ports.parisc:7350

On Fri, May 26, 2000 at 08:45:22PM -0600, Philipp Rumpf wrote:
> > > fs/fs.o: In function `L1184':
> > > fs/fs.o(.text.init+0x18fc): undefined reference to `nfs_debug'
> > > net/network.a(sunrpc.o): In function `rpc_create_client':
> > > sunrpc.o(.text+0x360): undefined reference to `rpc_debug'
> > 
> > can't see why you're having trouble here.  those variables are defined in
> > net/sunrpc/sysctl.c.  is that file being built?  i'm getting a toolchain
> > up here so I can try to reproduce.  [Dead hard drives SUCK].
> 
> grant: did you have CONFIG_SYSCTL set ?  if you didn't, that might
> explain your problems.

I think that's the case.  It's disabled by default if you make oldconfig,
so I'll commit a new defconfig which has it enabled (and has some of
the new options predefined).

I'm hitting an undefined __shrdiv3 (or something... lost that error
message, but it's one of those gcc-wants-64-bit-ops symbols).


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Xref: news.gmane.org gmane.linux.ports.parisc:7351

On Sat, May 27, 2000 at 12:08:05AM -0400, willy@thepuffingroup.com wrote:
> On Fri, May 26, 2000 at 08:45:22PM -0600, Philipp Rumpf wrote:
> > > > fs/fs.o: In function `L1184':
> > > > fs/fs.o(.text.init+0x18fc): undefined reference to `nfs_debug'
> > > > net/network.a(sunrpc.o): In function `rpc_create_client':
> > > > sunrpc.o(.text+0x360): undefined reference to `rpc_debug'
> > > 
> > > can't see why you're having trouble here.  those variables are defined in
> > > net/sunrpc/sysctl.c.  is that file being built?  i'm getting a toolchain
> > > up here so I can try to reproduce.  [Dead hard drives SUCK].
> > 
> > grant: did you have CONFIG_SYSCTL set ?  if you didn't, that might
> > explain your problems.
> 
> I think that's the case.  It's disabled by default if you make oldconfig,
> so I'll commit a new defconfig which has it enabled (and has some of
> the new options predefined).

Um.  That's definitely bad since then we don't have a sysrq_enabled definition.
(it's in drivers/char/keyboard.c which we don't use).  But now I've changed
it to `N', make dep, make clean, make vmlinux and I don't get those undefined
symbols.  Curioser and curioser.  My .config was generated from `make oldconfig'
with just hitting return for new options (ie answering `no').

> I'm hitting an undefined __shrdiv3 (or something... lost that error
> message, but it's one of those gcc-wants-64-bit-ops symbols).

__lshrdi3.  It's referenced from fs/nfs/inode.c.  I'm damned if I can
see where though (and I went through the gcc -E output trying to spot it.)
Does someone want to copy that from libgcc?  I'm going to lay down a tag
for end-of-merge now since I'm headed off for the weekend.


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From: Cary Coutant <cary@cup.hp.com>
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>OK, so you don't have a spot on the page for each syscall?  I was
>thinking that we'd want to do that, since we're going to use the whole
>page anyway and it would make things a little quicker by eliminating the
>later dispatch-by-syscall step.

There's a fair amount of setup code common to all syscalls before the 
dispatch to individual kernel entry points, and there are a lot of 
syscalls in HP-UX, so we use a single gateway.

For the 64-bit ABI, the gateway address is not hardcoded; when the 
program is loaded, the kernel passes it the address of a syscall vector 
table, which has one pointer per syscall. Most of the syscalls still 
vector to the one common gateway, but the lightweight syscalls can now be 
vectored off to a special gateway that has less overhead.

The 32-bit syscall convention is documented in (of all places) the 
Assembler manual; the 64-bit convention is documented in the PA-64 
runtime supplement (program startup chapter). These documents are 
available from

    http://www.software.hp.com/STK


Cary Coutant
Hewlett-Packard Co.
Application Delivery Lab


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On Sat, 27 May 2000 willy@thepuffingroup.com wrote:

> __lshrdi3.  It's referenced from fs/nfs/inode.c.  I'm damned if I can
> see where though (and I went through the gcc -E output trying to spot it.)

You won't spot it that way.  You need to look at the output of gcc -S.
It's likely from some long long arithmetic somewhere.

-- 
Linuxcare.  Support for the Revolution.


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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> __lshrdi3.  It's referenced from fs/nfs/inode.c.  I'm damned if I can
> see where though (and I went through the gcc -E output trying to spot it.)
> Does someone want to copy that from libgcc?  I'm going to lay down a tag
> for end-of-merge now since I'm headed off for the weekend.

__lshrdi3 should be in libgcc.a.  It's in mine.  If it is not there, you
have a problem building your (cross-)compiler.  If it is, check the link
by adding "-v" to the gcc link operation to see why libgcc.a is not being
linked into the object.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] [MERGE] -pre8 merge status
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Xref: news.gmane.org gmane.linux.ports.parisc:7355

On Sat, May 27, 2000 at 12:08:05AM -0400, willy@thepuffingroup.com wrote:
> On Fri, May 26, 2000 at 08:45:22PM -0600, Philipp Rumpf wrote:
> > > > fs/fs.o: In function `L1184':
> > > > fs/fs.o(.text.init+0x18fc): undefined reference to `nfs_debug'
> > > > net/network.a(sunrpc.o): In function `rpc_create_client':
> > > > sunrpc.o(.text+0x360): undefined reference to `rpc_debug'
> > > 
> > > can't see why you're having trouble here.  those variables are defined in
> > > net/sunrpc/sysctl.c.  is that file being built?  i'm getting a toolchain
> > > up here so I can try to reproduce.  [Dead hard drives SUCK].
> > 
> > grant: did you have CONFIG_SYSCTL set ?  if you didn't, that might
> > explain your problems.
> 
> I think that's the case.  It's disabled by default if you make oldconfig,
> so I'll commit a new defconfig which has it enabled (and has some of
> the new options predefined).
> 
> I'm hitting an undefined __shrdiv3 (or something... lost that error
> message, but it's one of those gcc-wants-64-bit-ops symbols).

lshrdi3 ?  that should be supplied in arch/parisc/lib but isn't.

if it has mul in it, maybe the nfs code wasn't fixed not to use 64-bit
multiplies.  a rather hacky fix for that would be

+++ linux/fs/nfs/nfs2xdr.c      Sun May 14 03:31:27 2000
@@ -658,9 +658,9 @@
        res->maxfilesize = 0x7FFFFFFF;  /* just a guess */
        res->bsize  = ntohl(*p++);
 
-       res->tbytes = ntohl(*p++) * res->bsize;
-       res->fbytes = ntohl(*p++) * res->bsize;
-       res->abytes = ntohl(*p++) * res->bsize;
+       res->tbytes = ntohl(*p++) * ((u32)res->bsize);
+       res->fbytes = ntohl(*p++) * ((u32)res->bsize);
+       res->abytes = ntohl(*p++) * ((u32)res->bsize);
        res->tfiles = 0;
        res->ffiles = 0;
        res->afiles = 0;

but istr it was discussed on l-k and fixed.

Sigh.  Is it really fun for you to run into the very same problems I
had while merging with 2.3.99-pre6 ?

	Philipp Rumpf


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Xref: news.gmane.org gmane.linux.ports.parisc:7356

On Sat, May 27, 2000 at 12:56:46AM -0400, willy@thepuffingroup.com wrote:
> On Sat, May 27, 2000 at 12:08:05AM -0400, willy@thepuffingroup.com wrote:
> > On Fri, May 26, 2000 at 08:45:22PM -0600, Philipp Rumpf wrote:
> > > > > fs/fs.o: In function `L1184':
> > > > > fs/fs.o(.text.init+0x18fc): undefined reference to `nfs_debug'
> > > > > net/network.a(sunrpc.o): In function `rpc_create_client':
> > > > > sunrpc.o(.text+0x360): undefined reference to `rpc_debug'
> > > > 
> > > > can't see why you're having trouble here.  those variables are defined in
> > > > net/sunrpc/sysctl.c.  is that file being built?  i'm getting a toolchain
> > > > up here so I can try to reproduce.  [Dead hard drives SUCK].
> > > 
> > > grant: did you have CONFIG_SYSCTL set ?  if you didn't, that might
> > > explain your problems.
> > 
> > I think that's the case.  It's disabled by default if you make oldconfig,
> > so I'll commit a new defconfig which has it enabled (and has some of
> > the new options predefined).
> 
> Um.  That's definitely bad since then we don't have a sysrq_enabled definition.
> (it's in drivers/char/keyboard.c which we don't use).  But now I've changed
> it to `N', make dep, make clean, make vmlinux and I don't get those undefined
> symbols.  Curioser and curioser.  My .config was generated from `make oldconfig'
> with just hitting return for new options (ie answering `no').
> 
> > I'm hitting an undefined __shrdiv3 (or something... lost that error
> > message, but it's one of those gcc-wants-64-bit-ops symbols).
> 
> __lshrdi3.  It's referenced from fs/nfs/inode.c.  I'm damned if I can
> see where though (and I went through the gcc -E output trying to spot it.)

it's Logical SHift Right DI (i.e. 8 byte).  I.e. somethnig like

u64 foo, bar;

bar = foo >> 7;

if you do s/u64/s64/ in the example, it would generate a call to __ashrdi3,
which we have code in arch/parisc/lib/ashrdi3.c for.  Now look at m68k.
They have code for lshrdi3 in the same place as for ashrdi3.  So, it would
be logical for us to do the same, and I have, in my tree, a few weeks ago
</hint>.
	
	Philipp Rumpf


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From: Philipp Rumpf <prumpf@puffin.external.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:7357

On Sat, May 27, 2000 at 11:31:08AM -0400, John David Anglin wrote:
> > __lshrdi3.  It's referenced from fs/nfs/inode.c.  I'm damned if I can
> > see where though (and I went through the gcc -E output trying to spot it.)
> > Does someone want to copy that from libgcc?  I'm going to lay down a tag
> > for end-of-merge now since I'm headed off for the weekend.
> __lshrdi3 should be in libgcc.a.  It's in mine.  If it is not there, you
> have a problem building your (cross-)compiler.  If it is, check the link
> by adding "-v" to the gcc link operation to see why libgcc.a is not being
> linked into the object.

Our kernel doesn't get linked with libgcc;  I don't think it's worth it to
move to using libgcc.a now, even though some architectures do use it.

	Philipp Rumpf


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/33 booting from SCSI disk nearly ok
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--0-846930886-959451263=:19400
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

Hi all,

first the good news: following Paul's excellent palo
documentation I succeeded to boot my 715/33 from its
internal HP C3324A SCSI disk. I booted the kernel from
the special F0 partition and used the ext2 fs on
partition 2 as the root filesystem.

But booting the kernel /vmlinux directly from the ext2
filesystem fails. Here is the bootlog:

Trying scsi.5.0
Boot path initialized.
Attempting to load IPL.

Hard booted.
palo ipl ulli@Ullis_PC Fri May 26 21:42:53 MEST 2000
0/vmlinux 2381159 bytes @ 0x44000
0/palo-cmdline '2/vmlinux HOME=/ TERM=LINUX
console=tty root=/dev/sda2'
/dev/ida1  f0         32      22496
/dev/ida2  83      22528    2027520
/dev/ida5  f0         32      22496
Kernel: partition 2 file /vmlinux
ext2 block size 1024
ext2_mount(partition 2) returns 0
ext2_open(/vmlinux) = -1
open /vmlinux failed

I have attached the successful bootlog using the
recovery kernel in case it helps diagnosing this
problem.

Ulrich

__________________________________________________
Do You Yahoo!?
Kick off your party with Yahoo! Invites.
http://invites.yahoo.com/
--0-846930886-959451263=:19400
Content-Type: text/plain; name="bootlog_f0.txt"
Content-Description: bootlog_f0.txt
Content-Disposition: inline; filename="bootlog_f0.txt"

              (c) Copyright Hewlett-Packard Company, 1991, 1992
Portions of this code are (c) Copyright Samsung Electronics Co., Ltd, 91, 92

PDC ROM rev. 1.4
IODC ROM rev. 1.2
48 MB of memory have been configured.


Selecting a system to boot.
To stop selection process, press and hold the ESCAPE key.

Selection process stopped.

Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.6.0                 HP      C2490AM
P1                    scsi.5.0                 HP      C3324A



b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu: b p1 isl

Trying scsi.5.0
Boot path initialized.
Attempting to load IPL.


Soft booted.
palo ipl ulli@Ullis_PC Fri May 26 21:42:53 MEST 2000
0/vmlinux 2381159 bytes @ 0x44000
0/palo-cmdline '2/vmlinux HOME=/ TERM=LINUX console=tty root=/dev/sda2'
/dev/ida1  f0         32      22496
/dev/ida2  83      22528    2027520
/dev/ida5  f0         32      22496
0/vmlinux HOME=/ TERM=LINUX console=tty root=/dev/sda2
Kernel: partition 0 file /vmlinux
ELF32 executable
                prepare_loadable 0050368c 2

Entry 0010197c first 00100000 n 4
Segment 0 load 00100000 size 1357564 mediaptr 0x1000
Segment 1 load 0024c000 size 108584 mediaptr 0x14d000
Segment 2 load 00268000 size 58776 mediaptr 0x168000
Segment 3 load 00278000 size 8192 mediaptr 0x177000
branching to kernel entry point 0x0010197c
The Kernel has started...
Free memory starts at: 0xc02e4000
PALO command line: 'HOME=/ TERM=LINUX console=tty root=/dev/sda2'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00003110 00000481 00000000 00000000 78294d38 ffffffff 00000004 0000000a
0000000a
vers    00000013
CPUID vers 0 rev 0
CPU(s): 1 x PA7100 at 33.333500 MHz
Searching for devices in PDC firmware...  an older box...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0, 0x77, 0x0, 0
x0
2. Scorpio Jr. Core BA (11) at 0xf082f000, versions 0xb, 0x0, 0x70, 0x0, 0x0
3. Scorpio Jr. Core SCSI (10) at 0xf0825000, versions 0xb, 0x0, 0x71, 0x0, 0x0
4. Scorpio Jr. Core LAN (802.3) (10) at 0xf0826000, versions 0xb, 0x0, 0x72, 0x0
, 0x0
5. Scorpio Jr. Core HIL (10) at 0xf0821000, versions 0xb, 0x0, 0x73, 0x0, 0x0
6. Scorpio Jr. Core RS-232 (10) at 0xf0823000, versions 0xb, 0x0, 0x75, 0x0, 0x0

7. Scorpio Jr. Core RS-232 (10) at 0xf0822000, versions 0xb, 0x0, 0x75, 0x0, 0x0

8. Scorpio Jr. Core Centronics (10) at 0xf0824000, versions 0xb, 0x0, 0x74, 0x0,
 0x0
9. Scorpio Jr. Audio (10) at 0xf1000000, versions 0xb, 0x0, 0x7b, 0x0, 0x0
10. Scorpio Jr.(715/33) (0) at 0xfffbe000, versions 0x311, 0x0, 0x4, 0x0, 0x81
11. Scorpio Jr. (1) at 0xfffbf000, versions 0x1b, 0x0, 0x9, 0x0, 0x0
That's a total of 11 devices.
Linux version 2.3.99-pre1 (ulli@Ullis_PC) (gcc version 2.9-hppa-991112) #3 Fri M
ay 26 21:34:53 MEST 2000
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 12288
zone(0): 6144 pages.
zone(1): 6144 pages.
zone(2): 0 pages.
trap_init
Calibrating delay loop... 25.60 BogoMIPS
Memory: 45276k available
kmem_test() - start
kmem_free: Bad front redzone (objp=c2ffe004, name=test-cachep)
kmem_free: Bad rear redzone (objp=c2ffe004, name=test-cachep)
kmem_test() - finished
c2ff0000 c2ff8000 c2fee000 c2ffc000
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
request_irq(259, c01f843c, 0x0, asp, c2fe9080)
ASP IRQ 259 EIM 0xfffe0003
busdevice_alloc_irq(0xf0823000) on ASP 0x200 + 26 = 538
Found serial #0 at 0xf0823000, IRQ 538
ttyS00 at iomem 0xf0823800 (irq = 538) is a 16550A
busdevice_alloc_irq(0xf0822000) on ASP 0x200 + 25 = 537
Found serial #1 at 0xf0822000, IRQ 537
ttyS00 at iomem 0xf0822800 (irq = 537) is a 16550A
busdevice_alloc_irq(0xf0826000) on ASP 0x200 + 23 = 535
Found i82596 at 0xf0826000, IRQ 535
early initialization of device eth0 is deferred
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 4096)
Starting kswapd v1.6
Serial driver version 4.92 (2000-1-27) with MANY_PORTS SHARE_IRQ SERIAL_PCI enab
led
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Lasi Scsi (53c700) found at 0xf0825100
busdevice_alloc_irq(0xf0825000) on ASP 0x200 + 22 = 534
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 534
scsi0: Revision 0x0
Post test1, istat 05, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: test 1 completed ok.
request_irq(534, c01ebe0c, 0x20000000, sim700, c2fcf260)
busdev_enable_irq(c2fe9080, 22) ASP: IMR 0x200
scsi0: sim700_intr_handle() called with no interruptscsi0 : LASI/Simple 53c700
scsi : 1 host.
  Vendor: HP        Model: C3324A            Rev: HP08
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 5, lun 0
  Vendor: HP        Model: C2490AM           Rev: 5193
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
scsi : detected 2 SCSI disks total.
SCSI device sda: hdwr sector= 512 bytes. Sectors= 2051460 [1001 MB] [1.0 GB]
Partition check:
 sda: sda1 sda2
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 4165272 [2033 MB] [2.0 GB]
 sdb: unknown partition table
82596: 6 0 0 at c0261f24
82596: 6 f0826000 217 at c2fecc00
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: 82596 at 0xf0826000, 08 00 09 83 9B 3F IRQ 535.
82596.c $Revision: 1.9 $
request_irq(535, c01bac38, 0x0, i82596, c2fecc00)
busdev_enable_irq(c2fe9080, 23) ASP: IMR 0x300
busdev_disable_irq(c2fe9080, 23) ASP: IMR 0x200
busdev_enable_irq(c2fe9080, 23) ASP: IMR 0x300
eth0: link ok.
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 149.234.204.34, my address is 149.234.204.66
VFS: Mounted root (ext2 filesystem) readonly.
tty_open
searching for 4/64
found 136/[0,256]
found 128/[0,256]
found 3/[0,256]
found 2/[0,256]
found 5/[64,64]
found 4/[64,64]
driver: -1070780592
retval 0
request_irq(538, c01a59a4, 0x4000000, serial, c02d3934)
busdev_enable_irq(c2fe9080, 26) ASP: IMR 0x320
driver.open 0
Stand-alone shell (version 2.1)
> -ls
.
..
dev
lost+found
palo
proc
sbin
vmlinux
>
--0-846930886-959451263=:19400--


From - Thu Nov 08 21:12:38 2018
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It looks like I've gone a little overboard this weekend....  enough so
that I feel my commit requires more than just a CVS log, anyway....

1) I managed to fix the HPMC that's been plaguing me for months...  it
turns out that if an interrupt fires while the kernel stack is being setup
to handle a syscall, bad things happen....   Easy fix, interrupts are now
disabled during syscall entry and exit (doesn't seem to be any problem
once the stack's proper....)

2) I was forced to add save/restore for the FP registers..  Doing so
cleaned up much of the abarrant behavior I'd been seeing in userspace
from the kernel trashing fp regs.
On the downside, it adds 30-some instructions to each of the
syscall/interrrupt entry and exit points.  

The kernel won't come close to compiling with -mdisable-fpregs, so we
can't take the easy route of just storing them during a full context
switch.  There's likely room for some improvement that doesn't involve 32
64-bit stores all the time.  nonetheless, it at least provides an
astonishingly reliable userspace... 


Well, unfortunately that got me far enough to compile lmbench onto the
thing, which led to....

3) Writing the cache/tlb flush code..  It's "a little" zippier now...  And
seems to be equally as stable (tends to avoid randomly halting...  I've
not seen an HPMC in hours, as opposed to every 5 minutes).   pagefault
times improved by 1-2 orders of magnitude...   our context switch latency
is still what I would consider crappy, but I'm not sure what those times
are really supposed to be like on a machine without proper hardware
contexts...  

at any rate, I'll be checking in in a few minutes after I go over the
changes a bit more...  enjoy.


"UN-altered REPRODUCTION and DISSEMINATION of this IMPORTANT
Information is ENCOURAGED, ESPECIALLY to COMPUTER BULLETIN BOARDS."
	-- Robert E. McElwaine




From - Thu Nov 08 21:12:38 2018
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From: "Peter A. Peterson II" <pedro@flynn.zork.net>
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Subject: [parisc-linux] HP-UX random number generator?
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I'm awaiting the day when I can fool around with Linux on my E-45, but
in the meantime, I'm trying to use it's tape drive to back up my
traditional Linux boxen via piping a tarball through ssh.  However, ssh 
needs a random generator (like /dev/urandom/) and I don't know what an 
HP-UX equivalent might be, or how to go about installing one. 

Any ideas?

pedro

-- 
-----------------------------------------------
      "She's laughin in her sleeve, boys;
   I can feel it in my bones."  -- Tom Waits
-----------------------------------------------


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From: Ed June <buggz@america.net>
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Subject: [parisc-linux] EISA 10/100 nic for 715 systems ?
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Were there ever any EISA 10/100 LAN cards for 715 systems?
I have found straight 10's and 100's, but not a switching one.



--

 Ed June

 buggz@america.net
 Linux: An open choice for free people worldwide.




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From: Sandy Harris <sandy@storm.ca>
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Subject: Re: [parisc-linux] HP-UX random number generator?
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"Peter A. Peterson II" wrote:
> 
> I'm awaiting the day when I can fool around with Linux on my E-45, but
> in the meantime, I'm trying to use it's tape drive to back up my
> traditional Linux boxen via piping a tarball through ssh.  However, ssh
> needs a random generator (like /dev/urandom/) and I don't know what an
> HP-UX equivalent might be, or how to go about installing one.
> 
Since you want to use it for crypto, this is a fairly difficult
problem. The numbers don't just need to have a nice distribution;
they have to be highly unpredictable, even to the cleverest, most
persistent and best-equipped opponent you might encounter.

The standard reference is RFC 1750.

A page with quite a lot of discussion of Linux /dev/random is at:
http://www.openpgp.net/random/index.html
There's a bunch more in Linux kernel mailing list archives.

Bruce Schneier and a few others have done quite a bit of research on
weaknesses of random number generators and  designed a generator called
Yarrow. Source (Windows only last I looked) is freely available from
counterpane.com.


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From: Mike Shaver <shaver@netscape.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] Gateway instructions
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Cary Coutant wrote:
> The 32-bit syscall convention is documented in (of all places) the
> Assembler manual; the 64-bit convention is documented in the PA-64
> runtime supplement (program startup chapter). These documents are
> available from
> 
>     http://www.software.hp.com/STK

When I click on
http://docs.hp.com:80/dynaweb/hpux11/dtdcen1a/b541/@Generic__BookView
(the Assembler Reference Manual from
http://www.software.hp.com/STK/toc.html#Assembly ) I get an error:

No item b541 exists in collection dtdcen1a (fbebtcol.cc:1120)

Is there another place to find it?

Mike

-- 
399279.02 342330.84


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 am"
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Ed June said:
> Were there ever any EISA 10/100 LAN cards for 715 systems?
> I have found straight 10's and 100's, but not a switching one.

At my previous job, I had a spare EISA 10/100 card originally out of a
B160 that I used in my 715/100.

Either the cards or HP-UX was kind of weird about switching between 10
and 100.  I think I only got that card to talk 100 with a particular
brand of switch, and that was only when I forced the switch to 100
half duplex.  (The PCI cards did the same thing, but a kernel patch
for 10.20 released late last year seemed to fix autonegotiation.)

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(618)398-7320             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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From: "Peter A. Peterson II" <pedro@flynn.zork.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP-UX random number generator?
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Quoting Sandy Harris:
> "Peter A. Peterson II" wrote:
> Since you want to use it for crypto, this is a fairly difficult
> problem. The numbers don't just need to have a nice distribution;
> they have to be highly unpredictable, even to the cleverest, most
> persistent and best-equipped opponent you might encounter.

This is quite true... but for now, I'd settle on making ssh work,
since there is nothing of great value on the HP box, I'm just looking
for a way to kludge ssh into working.

> 
> The standard reference is RFC 1750.
> 
> A page with quite a lot of discussion of Linux /dev/random is at:
> http://www.openpgp.net/random/index.html
> There's a bunch more in Linux kernel mailing list archives.
> 
> Bruce Schneier and a few others have done quite a bit of research on
> weaknesses of random number generators and  designed a generator called
> Yarrow. Source (Windows only last I looked) is freely available from
> counterpane.com.

I will look into this -- thanks.

pedro

-- 
-----------------------------------------------
      "She's laughin in her sleeve, boys;
   I can feel it in my bones."  -- Tom Waits
-----------------------------------------------


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Subject: Re: [parisc-linux] HP-UX random number generator?
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"Peter A. Peterson II" wrote:

> 
> This is quite true... but for now, I'd settle on making ssh work,
> since there is nothing of great value on the HP box, I'm just looking
> for a way to kludge ssh into working.
> 

I downloaded ssh-1.2.27 a mounth ago or so on my HP-UX box, and used it
to connect to my web provider (a linux machine), and it ran like a
champ.

So go grab it, nothing to kludge, compile/link/run.

Phi


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Subject: Re: [parisc-linux] HP-UX random number generator?
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Peter A. Peterson II said:
> This is quite true... but for now, I'd settle on making ssh work,
> since there is nothing of great value on the HP box, I'm just looking
> for a way to kludge ssh into working.

I know that on Solaris a /dev/urandom device is provided by the SKI packages.
There may be an equivalent under the HPUX environment but I am not sure, I am
not very far up the HPUX guru ladder.

You might like to consider using OpenSSH if you don't have any joy with ssh.

OpenSSH can be compiled[1] without a /dev/*random device by using egd[2], the
Entropy Gathering Daemon.  OpenSSH also requires installation of zlib and
openssl though (which is just a bit more effort, but oh well).  I've not used
egd so can't comment on it, but it's probably worth a go.

Or you could just fall back on rsh.  =)

Andrew.

[1] http://www.openssh.com/portable.html
[2] http://www.lothar.com/tech/crypto/

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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Quoting Andrew Shugg:
> You might like to consider using OpenSSH if you don't have any joy with ssh.
> 
> OpenSSH can be compiled[1] without a /dev/*random device by using egd[2], the
> Entropy Gathering Daemon.  OpenSSH also requires installation of zlib and
> openssl though (which is just a bit more effort, but oh well).  I've not used
> egd so can't comment on it, but it's probably worth a go.

I was incorrectly specific. I installed openssh, zlib, and ssleay
already, and in the configure process for openssh it crapped out 
looking for /dev/urandom and/or egd. I think i'll look into egd. 

Thanks all.

pedro

-- 
-----------------------------------------------
      "She's laughin in her sleeve, boys;
   I can feel it in my bones."  -- Tom Waits
-----------------------------------------------


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Subject: [parisc-linux] 735/125 Initial Installation
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The website docs say this is impossible, but sometimes docs are out of date.

Is it possible to install Linux on my 735/125 in place of the HPUX install
that occupies the entire hard disk without using another linux box (NT box
is available)?

It seems that I cannot install PALO unless I have a separate Linux box, or
am installing Linux on a different disk than the one that holds HPUX now.  I
have 1 hard disk that I want to repartition, format, install PALO, and an
EXT2 filesystem with a kernel/binutils/etc on.  The 735/125 can have a 125mb
1/4" tape drive, a 4gig 4mm dat, or zip disk added to its SCSI chain if that
helps.  I have a separate NT box that can be used if helpful for
partitioning, loading files, etc but I do not have a separate x86 linux box
(And the NT box needs to as NT).

Can anyone help?

Thanks,
--Craig


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Through some hacks, and special thanks to taggart for producing
header files, I built a tool chain which cross compiles all applications
I've attempted... well almost.  Anyway the good news is I have a
native binutils for palinux.  Unfortunately cross-compiling
bash, tar, and gcc all fail in the link stage with:

/home/bame/xc/bin/../lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/../../../../hppa1.1-linux/lib/libc.a(execve.o): In function `__execve':
/users/bame/palinux/glibc/posix/../sysdeps/unix/sysv/linux/execve.c:39: undefined reference to `$global$'
collect2: ld returned 1 exit status

I checked, and the absence of $global$ is a special case in the linker.  I
tried adding a file which defined $global$ by hand and that didn't help
either.

My tentative conclusion is that smaller apps link and larger ones don't --
possibly some interaction with the decision to start using %r8-based stubs
when the app gets too big.  I'm stuck.

I'll leave puffin.external.hp.com:~bame/rrtar.o around for anyone who
wants to mess with the linker.  It is the "ld -r" of all the object files
for tar.  'hppa1.1-linux-gcc -o tar rrtar.o' should create tar,
but this causes the (my) linker to fail.

The tool chain I'm using, which has some hand patches in it because I
don't really know where they belong in sources, can be rsync-ed from
puffin.external.hp.com:~bame/xc or grab the tarball
ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/elf32x86.tar.gz

In the meantime I think this is pretty cool:

    VFS: Mounted root (NFS filesystem) readonly.
    request_irq(538, c01aca7c, 0x4000000, serial, c02cf95c)
    Stand-alone shell (version 3.4)
    > ar tv /usr/lib/libcrypt.a
    rw-r--r-- 16602/100  12176 May 28 00:01 2000 crypt-entry.o
    rw-r--r-- 16602/100  29312 May 28 00:01 2000 md5-crypt.o
    rw-r--r-- 16602/100  31364 May 28 00:01 2000 md5.o
    > objdump -d /usr/lib/crti.o
										
    /usr/lib/crti.o:     file format elf32-hppa
										
    Disassembly of section .text:
    Disassembly of section .init:
										
    00000000 <_init>:
       0:   6b c2 3f d9     stw rp,-14(sr0,sp)
       4:   37 de 00 80     ldo 40(sp),sp
       8:   6b d3 3f c1     stw r19,-20(sr0,sp)
       c:   6b c4 3f 81     stw r4,-40(sr0,sp)
      10:   e8 40 00 00     b,l 18 <gcc2_compiled.+0x18>,rp
      14:   08 13 02 44     copy r19,r4
    Disassembly of section .fini:
										
    00000000 <_fini>:
       0:   6b c2 3f d9     stw rp,-14(sr0,sp)
       4:   37 de 00 80     ldo 40(sp),sp
       8:   6b d3 3f c1     stw r19,-20(sr0,sp)
       c:   6b c4 3f 81     stw r4,-40(sr0,sp)
      10:   08 13 02 44     copy r19,r4


	-Paul Bame


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Ed June wrote:
> Were there ever any EISA 10/100 LAN cards for 715 systems?
> I have found straight 10's and 100's, but not a switching one.

The "newer" 715s (64/80/100, iirc) have a GSC slot and can take
a "EISA Form Factor" 100BT card based on Tulip. This card has
the GSCtoPCI bus converter on board and the Tulip driver (btlan4)
basically only talks to the PCI device.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Subject: Re: [hppa-linux] Gateway instructions
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Mike Shaver wrote:
> When I click on
> http://docs.hp.com:80/dynaweb/hpux11/dtdcen1a/b541/@Generic__BookView
> (the Assembler Reference Manual from
> http://www.software.hp.com/STK/toc.html#Assembly ) I get an error:
> 
> No item b541 exists in collection dtdcen1a (fbebtcol.cc:1120)
> 
> Is there another place to find it?

Hey look -- there is!
http://docs.hp.com:80/dynaweb/hpux11/dtdcen1a/b821/@Generic__BookView

Thanks to Pablo for pointing it out.

Mike

-- 
402266.28 345101.43


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From: "FINK,MARTIN \(HP-FtCollins,ex1\)" <martin_fink@hp.com>
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Subject: RE: [parisc-linux] HP-UX random number generator?
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Peter -

Sorry to disappoint - /dev/random /dev/urandom are not available
on HP-UX.  Lots of internal discussions inside HP on how/when
to make it available.  No dates.

Martin

+=================================================================+
| Martin Fink                 | E-mail: martin_fink@hp.com        |
| UNIX Systems Enablement Lab | Phone:  970-898-7076              |
| Hewlett-Packard Co.         | FAX:    970-898-2838              |
| 3404 East Harmony Road      | Mobile: 970-215-2451              |
| Ft. Collins, CO             | Page:   9702152451@mobile.att.net |
| 80528, USA                  | Web:    http://www.hp.com/        |
+=================================================================+    
 

> -----Original Message-----
> From: Peter A. Peterson II [mailto:pedro@flynn.zork.net]
> Sent: Monday, May 29, 2000 1:50 AM
> To: parisc-linux@thepuffingroup.com
> Subject: [parisc-linux] HP-UX random number generator?
> 
> 
> I'm awaiting the day when I can fool around with Linux on my E-45, but
> in the meantime, I'm trying to use it's tape drive to back up my
> traditional Linux boxen via piping a tarball through ssh.  
> However, ssh 
> needs a random generator (like /dev/urandom/) and I don't 
> know what an 
> HP-UX equivalent might be, or how to go about installing one. 
> 
> Any ideas?
> 
> pedro
> 
> -- 
> -----------------------------------------------
>       "She's laughin in her sleeve, boys;
>    I can feel it in my bones."  -- Tom Waits
> -----------------------------------------------
> 
> --------------------------------------------------------------
> -------------
> To unsubscribe: send e-mail to 
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] CONFIG_SYSCTL is not set
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Xref: news.gmane.org gmane.linux.ports.parisc:7376

Hi folks,

By default, CONFIG_SYSCTL is not set.
And I get the following errors when linking:

fs/fs.o: In function `nfs_put_inode':
fs/fs.o(.text+0x399dc): undefined reference to `nfs_debug'
fs/fs.o: In function `L1261':
fs/fs.o(.text.init+0x18fc): undefined reference to `nfs_debug'
net/network.a(sunrpc.o): In function `rpc_create_client':
sunrpc.o(.text+0x360): undefined reference to `rpc_debug'

All of these errors are a result of not having globals defined in
net/sunrpc/sysctl.c.  sysctl.o only gets built when CONFIG_SYSCTL=y.


With CONFIG_SYSCTL=y, I get a different linker error
kernel/kernel.o(.data+0x3b4c): undefined reference to `sysrq_enabled'

(which willy already pointed out...See
http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/05-May/0103.html)

This is very reproducible (going back and forth) in my build tree.
I don't see how willy got around it.

Do we want the build to work with or without CONFIG_SYSCTL?


>From the Documentation/Configure.help:
|  As it is generally a good thing, you should say Y here unless
|  building a kernel for install/rescue disks or your system is very  
|  limited in memory.

Philipp Rumpf wrote:
> I wouldn't really consider this a bug, but if anyone does he should 
> probably report it to whoever is working on that code in 2.3. 

If anyone wants to build x86 install/rescue disks, I think they can't now.
Either the Configure.help is wrong or the code is wrong.
I don't know how to submit a BUG.
Any pointers on where this bug should go?

thanks,
grant


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Foiled by the linker again
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On Mon, 29 May 2000 bame@puffin.external.hp.com wrote:

> /home/bame/xc/bin/../lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/../../../../hppa1.1-linux/lib/libc.a(execve.o): In function `__execve':
> /users/bame/palinux/glibc/posix/../sysdeps/unix/sysv/linux/execve.c:39: undefined reference to `$global$'
> collect2: ld returned 1 exit status

This is a bogus error message.  The real error is that a call to
__pthread_kill_other_threads_np is too far to be reached by a branch so
needs to go through a stub, but the relevant stub
_____long_branch_stub___pthread_kill_other_threads_np isn't found for some
reason.

Chasing it up...

-- 
Linuxcare.  Support for the Revolution.


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Foiled by the linker again
Date: Tue, 30 May 2000 16:42:29 +1000 (EST)
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On Tue, 30 May 2000, Alan Modra wrote:

> On Mon, 29 May 2000 bame@puffin.external.hp.com wrote:
> 
> > /home/bame/xc/bin/../lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/../../../../hppa1.1-linux/lib/libc.a(execve.o): In function `__execve':
> > /users/bame/palinux/glibc/posix/../sysdeps/unix/sysv/linux/execve.c:39: undefined reference to `$global$'
> > collect2: ld returned 1 exit status
> 
> This is a bogus error message.  The real error is that a call to
> __pthread_kill_other_threads_np is too far to be reached by a branch so
> needs to go through a stub, but the relevant stub
> _____long_branch_stub___pthread_kill_other_threads_np isn't found for some
> reason.
> 
> Chasing it up...

It turned out that elf32_hppa_bfd_final_link_relocate wasn't handling
undefined weak symbols correctly.  I've fixed this, the bogus error
message, and a handfull of other minor things, and commited the fixes to
pehp CVS.

Now I get
$ ld/ld-new -o tar /usr/parisc/lib/crt1.o /usr/parisc/lib/crti.o
/usr/parisc/lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/crtbegin.o
-L/usr/parisc/lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112 -L/usr/parisc/lib/
rrtar.o -lgcc -lc -lgcc
/usr/parisc/lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/crtend.o
/usr/parisc/lib/crtn.o
/usr/parisc/lib//libc.a(nsswitch.o)(.data+0x64): undefined reference to
`_nss_files_getaliasent_r'

which looks like a problem with my glibc build.

Regards, Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] CONFIG_SYSCTL is not set
Date: Tue, 30 May 2000 08:53:01 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:7379

Hi Grant,

You probably already worked this out, but mine builds fine with

CONFIG_SYSCTL=y
# CONFIG_MAGIC_SYSRQ is not set

Richard

On Mon, May 29, 2000 at 07:01:07PM -0700, Grant Grundler wrote:
> With CONFIG_SYSCTL=y, I get a different linker error
> kernel/kernel.o(.data+0x3b4c): undefined reference to `sysrq_enabled'
> 
> (which willy already pointed out...See
> http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/05-May/0103.html)
> 
> This is very reproducible (going back and forth) in my build tree.
> I don't see how willy got around it.


From - Thu Nov 08 21:12:40 2018
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From: Alan Modra <alan@linuxcare.com.au>
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Subject: [parisc-linux] Finding bogus asm comment chars.
Date: Tue, 30 May 2000 23:03:27 +1000 (EST)
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The following hack might be useful to anyone trying to find `;' chars
buried away in C asm statements.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.

Index: app.c
===================================================================
RCS file: /home/cvs/parisc/binutils-2.10/gas/app.c,v
retrieving revision 1.1.1.1
diff -u -p -r1.1.1.1 app.c
--- app.c	2000/05/18 00:37:23	1.1.1.1
+++ app.c	2000/05/30 12:34:34
@@ -34,6 +34,9 @@
 #endif
 #endif
 
+/* We changed the hppa comment char.  Help find C asm that needs fixing.  */
+int found_comment = 0;
+
 #ifdef TC_M68K
 /* Whether we are scrubbing in m68k MRI mode.  This is different from
    flag_m68k_mri, because the two flags will be affected by the .mri
@@ -1161,7 +1164,7 @@ do_scrub_chars (get, tostart, tolen)
 	      && state != 1
 	      && state != 10)
 	    goto de_fault;
-	  /* Fall through.  */
+	  goto dont_count_this_comment;
 	case LEX_IS_COMMENT_START:
 #if defined TC_ARM && defined OBJ_ELF
 	  /* On the ARM, `@' is the comment character.
@@ -1172,6 +1175,8 @@ do_scrub_chars (get, tostart, tolen)
 	  if ((symver_state != NULL) && (*symver_state == 0))
 	    goto de_fault;
 #endif
+	  found_comment = 1;
+	dont_count_this_comment:
 	  do
 	    {
 	      ch = GET ();
Index: read.c
===================================================================
RCS file: /home/cvs/parisc/binutils-2.10/gas/read.c,v
retrieving revision 1.1.1.1
diff -u -p -r1.1.1.1 read.c
--- read.c	2000/05/18 00:37:23	1.1.1.1
+++ read.c	2000/05/30 12:35:03
@@ -1102,6 +1102,11 @@ read_a_source_file (name)
   md_cleanup();
 #endif
   input_scrub_close ();		/* Close the input file */
+  {
+    extern int found_comment;
+    if (found_comment)
+      as_warn ("comments be here");
+  }
 }
 
 /* For most MRI pseudo-ops, the line actually ends at the first


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From: Paul Bame <bame@endor.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Foiled by the linker again
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Xref: news.gmane.org gmane.linux.ports.parisc:7381

= On Tue, 30 May 2000, Alan Modra wrote:
= 
= > On Mon, 29 May 2000 bame@puffin.external.hp.com wrote:
= > 
= > > /home/bame/xc/bin/../lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/../../../.
./hppa1.1-linux/lib/libc.a(execve.o): In function `__execve':
= > > /users/bame/palinux/glibc/posix/../sysdeps/unix/sysv/linux/execve.c:39: u
ndefined reference to `$global$'
= > > collect2: ld returned 1 exit status
= > 
= > This is a bogus error message.  The real error is that a call to
= > __pthread_kill_other_threads_np is too far to be reached by a branch so
= > needs to go through a stub, but the relevant stub
= > _____long_branch_stub___pthread_kill_other_threads_np isn't found for some
= > reason.
= > 
= > Chasing it up...
= 
= It turned out that elf32_hppa_bfd_final_link_relocate wasn't handling
= undefined weak symbols correctly.  I've fixed this, the bogus error
= message, and a handfull of other minor things, and commited the fixes to
= pehp CVS.
= 
= Now I get
= $ ld/ld-new -o tar /usr/parisc/lib/crt1.o /usr/parisc/lib/crti.o
= /usr/parisc/lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/crtbegin.o
= -L/usr/parisc/lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112 -L/usr/parisc/lib/
= rrtar.o -lgcc -lc -lgcc
= /usr/parisc/lib/gcc-lib/hppa1.1-linux/2.9-hppa-991112/crtend.o
= /usr/parisc/lib/crtn.o
= /usr/parisc/lib//libc.a(nsswitch.o)(.data+0x64): undefined reference to
= `_nss_files_getaliasent_r'
= 
= which looks like a problem with my glibc build.

Yup.  Grab the file glibc/PARISC-EXTRA-FILES which contains a list of
the missing .o files which you can add by hand with 'hppa1.1-linux-ar'.

	-P


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As a temporary hack, I changed arch/parisc/defconfig to enable
CONFIG_SYSCTL and defined sysrq_enabled in arch/parisc/kernel/setup.c.
The kernel will link this way at least, but it's not the "right answer".

	-P


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Subject: Re: [parisc-linux] HP-UX random number generator?
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Martin --

I got egd installed and working properly, but now openssh craps out
under 'make install' because of:
[gumby(~/openssh-1.2.2)] sudo make install
        gcc -g -O2 -Wall -I/usr/local/ssl/include -D_HPUX_SOURCE
-DETCDIR=\"/usr/local/etc\" -DSc
In file included from config.h:336,
                 from includes.h:22,
                 from atomicio.c:26:
defines.h:93: parse error before `u_int64_t'
defines.h:93: warning: data definition has no type or storage class
*** Error exit code 1

Stop.
[gumby(~/openssh-1.2.2)]

This machine is running HP-UX 10. Would you know how to go about
adding the proper definitions to the types.h file?

(Or where I could read about how to do it?)

Thanks a lot,
Peter


Quoting FINK,MARTIN (HP-FtCollins,ex1):
> Peter -
> 
> Sorry to disappoint - /dev/random /dev/urandom are not available
> on HP-UX.  Lots of internal discussions inside HP on how/when
> to make it available.  No dates.
> 
> Martin
> 
> > 
> > I'm awaiting the day when I can fool around with Linux on my E-45, but
> > in the meantime, I'm trying to use it's tape drive to back up my
> > traditional Linux boxen via piping a tarball through ssh.  
> > However, ssh 
> > needs a random generator (like /dev/urandom/) and I don't 
> > know what an 
> > HP-UX equivalent might be, or how to go about installing one. 
> > 
> > Any ideas?
> > 
> > pedro

-- 
-----------------------------------------------
      "She's laughin in her sleeve, boys;
   I can feel it in my bones."  -- Tom Waits
-----------------------------------------------


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Guh. Sorry all.

-pedro


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> > The B bit is not a problem as long as the delay slot of the branch to the
> > gateway is either nullified or filled in with a non-branch instruction.
> > For example,
> > 
> >     LDIL L'GATEWAY,%r1
> >     BLE  R'GATEWAY(%sr7,%r1)
> >     LDO  sycallnum,%r22

	Branch to space in %sr7 and offset contained in %r1,
	also load the syscall number in %r22 in the delay slot of BLE.
	I guess the assumption here is that %sr7 points to system space.
	Value of GATEWAY can be replaced by 0xc0000000 or whatever.	
	
	A equivalent 80386 sequence to make syscall:

	movl	$1, %eax	; load syscall num in %eax. in this case
						"exit"
	int	$0x80		; syscall trap in to kernel

	The number 80 is OS dependent and no magic number. Its just that
	Linux 80386 goes through trap gate 128 (0x80) for syscalls.


						pkd
> 
> Someday (maybe today, if I get all my work done =) ), I'll learn to read
> that.
> 
> Mike
> 
> -- 


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"Peter A. Peterson II" <pedro@flynn.zork.net> wrote:
> Quoting Andrew Shugg:
> > You might like to consider using OpenSSH if you don't have any joy with ssh.
> > 
> > OpenSSH can be compiled[1] without a /dev/*random device by using egd[2], the
> > Entropy Gathering Daemon.  OpenSSH also requires installation of zlib and
> > openssl though (which is just a bit more effort, but oh well).  I've not used
> > egd so can't comment on it, but it's probably worth a go.
> 
> I was incorrectly specific. I installed openssh, zlib, and ssleay
> already, and in the configure process for openssh it crapped out 
> looking for /dev/urandom and/or egd. I think i'll look into egd. 

AFIAK, the more recent versions of openssh aren't supposed to need
/dev/urandom (or egd) when used with openssl-0.9.5.

Barrie


--
Barrie Spence			Sanity Clause? There is no Sanity Clause
Home: b.spence@ieee.org		Telephone +44 1506 442304
Play: barrie_spence@agilent.com


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From: Barrie Spence <baz@calvin.demon.co.uk>
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Subject: Re: [parisc-linux] EISA 10/100 nic for 715 systems ?
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Steven Pritchard <steve@silug.org> wrote:
> Ed June said:
> > Were there ever any EISA 10/100 LAN cards for 715 systems?
> > I have found straight 10's and 100's, but not a switching one.

There was an EISA card for the S700's, I think that it was
actually OEM'd from Interphase.

> At my previous job, I had a spare EISA 10/100 card originally out of a
> B160 that I used in my 715/100.
> 
> Either the cards or HP-UX was kind of weird about switching between 10
> and 100.  I think I only got that card to talk 100 with a particular
> brand of switch, and that was only when I forced the switch to 100
> half duplex.  (The PCI cards did the same thing, but a kernel patch
> for 10.20 released late last year seemed to fix autonegotiation.)

The EISA card was definitely only half-duplex and generally not 
considered a good performer.

The PCI and GSC cards are totally different beasts...

Barrie


--
Barrie Spence			Sanity Clause? There is no Sanity Clause
Home: b.spence@ieee.org		Telephone +44 1506 442304
Play: barrie_spence@agilent.com


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Fwd: Re: [parisc-linux] CONFIG_SYSCTL is not set
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---------  Weitergeleitete Nachricht  ----------
Subject: Re: [parisc-linux] CONFIG_SYSCTL is not set
Date: Tue, 30 May 2000 19:59:09 +0200
From: Helge Deller <deller@gmx.de>


Am Tue, 30 May 2000 schrieben Sie:
> THe linking problem I had was that "sysrq_enabled" is defined in
> keyboard.c, which formerly we never used, so the link was failing.
> That's why I hacked it into setup.c.  If your STI stuff causes us
> to compile keyboard.c, that would explain why you don't need my setup.c
> hack.

I just looked into it. You will NOT be forced by my patches to compile 
keyboard.c. You may stay with your usual configuration (no keyboard, no STI, 
only serial-console). In my last commit I changed defconfig to use virtual 
consoles, keyboard and hil-keyboard. This should not affect your usage of the 
serial-console.
So I think my changes should cleanly attach to any tree, and if you only use 
serial-console without keyboard enabled, you're right, that you will need the 
patch to setup.c. Couldn't you commit your patch to setup.c (with  #ifdef ... 
#endif) ?

Helge.
-------------------------------------------------------


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] STI-Console Mini-HOWTO
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Hi,

After my last commits regarding keyboard-support and STI-Console I think a 
small MINI-HOWTO should help to avoid the most problems for people, who want to
try the STI-Console on their machines.....

But first of all, I would like to thank Philipp Rumpf <prumpf@tux.org> for
allowing me to commit his sticon.[c|h] drivers.

As usual, any feedback is welcome :-)

Helge

-----------------------------------------------------------------

STI-console MINI-HOWTO:
-----------------------

-  check out a fresh linux-2.3 and palo, delete your .config and 
   use "make menuconfig" :-)

-  SELECT ONLY ONE of 
	"Support for console on serial port"
    ** OR **
	"STI-Console".

-  if you get "unable to open initial console", check the
   MAJOR/MINOR of /dev/console in your ramdisk or NFS:
   mknod /dev/console c 5 1 	-- for serial console
   mknod /dev/console c 4 0	-- for STI-console (should it be 4/1 ?) 
   
   For both cases I uploaded new ramdisks (ramdisk20000530-[sercon|sticon].tgz)
   to ftp://puffin.external.hp.com/pub/parisc/binaries/ramdisks
   I added special files for lp- and parport-devices there too.

-  for the STI-console you may define the initial number of 
   rows & columns in drivers/video/dummycon.c (this is temporary).
   You may adjust the numbers to the kernel message
   "Console: switching to colour STI console <numcols>x<numrows>"
   you will get during the first time the kernel starts.
   
-  once you see your STI-console is working you may reenable 
   "unregister_console()" at the end of arch/parisc/pdc_cons.c
   This will disable the "double" output from the kernel.

-  The only tested keyboard-support is currently with HIL-keyboards as 
   used in 715/64's. PS/2-Keyboards *may* work (feedback welcome!).


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ttyS00 reported twice
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There was some discussion on irc yesterday about bootup messages reporting
something like:

Found serial #0 at 0xf0823000, IRQ 538
ttyS00 at iomem 0xf0823800 (irq = 538) is a 16550A
Found serial #1 at 0xf0822000, IRQ 537
ttyS00 at iomem 0xf0822800 (irq = 537) is a 16550A

i.e. both ports reported as ttyS00.  This seems to be a consequence of us
calling register_serial() before rs_init() is called.  In addition there
is a chunk of initialisation in rs_init() that is #ifndef CONFIG_GSC;
that would need to be enabled so that rs_table[].line is initialised,
before we would report ttyS01.

The solution might be to make register_serial() aware of whether rs_init()
has yet been called.  If it hasn't, register_serial() just queues the
struct_serial that was passed in and returns success.  At the end of
rs_init() we call register_serial() again for each item in the queue.
This is similar to what happens with the net devices.

Richard


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] No handler for interrupt 259
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Hi folks,
I've got minor bug in the 5/30 tree someone might be interested
in figuring out.  I'm getting a "No handler for interrupt 259"
message while this B160 is booting.

This is occurs because no one has registered an interrupt handler
to use EIRR bit 3.  IRQ region 1 (IRQ's 256-511) is for the CPU.
Enableding "DEBUG_IRQ" in arch/parisc/kernel/irq.c produces
the "1+3" seen in the output.

Shortly after the spurious interrupt, Dino gets assigned this bit.
But I think that's just a coincidence since Dino registers haven't
been initialized by the dino driver yet. The value in Dino's IAR0
register is 0xfffffff8 - not even a valid CPU address.

So who *is* generating interrupt on EIRR bit 3?
And do they interfer with Dino operation later by
generating additional spurious interrupts?

Please ignore the "Code 8" at the end of the console output
for now. That's a different problem...

thanks,
grant


Main Menu: Enter command > bo lan
Interact with IPL (Y, N, Q)?> n

Booting... 
Network Station Address 0060b0-07e40c
System IP Address 15.8.80.77
Server IP Address 15.8.80.76

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@hpisp747 Tue May 30 15:42:05 PDT 2000
0/vmlinux 2284379 bytes @ 0x7800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.80.76:/tftpboot/aachen'
0/ramdisk 870400 bytes @ 0x23535b
Kernel: partition 0 file /vmlinux
ELF32 executable
                prepare_loadable 0050368c 2

Entry 00101b3c first 00100000 n 4
Segment 0 load 00100000 size 1277348 mediaptr 0x1000
Segment 1 load 00238000 size 121564 mediaptr 0x139000
Segment 2 load 00258000 size 69288 mediaptr 0x157000
Segment 3 load 0026c000 size 8192 mediaptr 0x168000
branching to kernel entry point 0x00101b3c
pdc_cons registered !
The Kernel has started...
Free memory starts at: 0xc029b000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.80.76:/tftpboot/aachen'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00005020 00000481 00000000 02020202 77f5e270 100000f0 00000004 000000ba 000000ba
vers    00000008
cpuid   000001e8
CPUID vers 15 rev 8
CPU(s): 1 x PA7300LC at 160.000000 MHz
Searching for devices in PDC firmware... a newer box...
Found devices:
1. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0, 0x0, 0x0, 0x0
2. Unknown device (4) at 0xfff8c000, versions 0x3d, 0x0, 0x89, 0x0, 0x80
3. Merlin L2 160 (9000/778/B160L) (0) at 0xfffbe000, versions 0x502, 0x0, 0x4, 0x0, 0x81
4. ThunderHawk Memory (1) at 0xfffbf000, versions 0x67, 0x0, 0x9, 0x0, 0x0
5. Merlin 160 Core BA (11) at 0xffd00000, versions 0x3d, 0x0, 0x81, 0x0, 0x0
6. Merlin 160 Core RS-232 (10) at 0xffd05000, versions 0x3d, 0x0, 0x8c, 0x0, 0x0
7. Merlin 160 Core SCSI (10) at 0xffd06000, versions 0x3d, 0x0, 0x82, 0x0, 0x0
8. Merlin 160 Core Lan (802.3) (10) at 0xffd07000, versions 0x3d, 0x0, 0x8a, 0x0, 0x0
9. Merlin 160 Core Centronics (10) at 0xffd02000, versions 0x3d, 0x0, 0x74, 0x0, 0x0
10. Merlin 160 Core Audio (10) at 0xffd04000, versions 0x3d, 0x4, 0x7b, 0x0, 0x0
11. Merlin 160 Core PC Keyboard (10) at 0xffd08000, versions 0x3d, 0x0, 0x84, 0x0, 0x0
12. Merlin 160 Core PC Keyboard (10) at 0xffd08100, versions 0x3d, 0x0, 0x84, 0x0, 0x0
13. Merlin+ Wax BA (11) at 0xffe00000, versions 0x3a, 0x0, 0x8e, 0x0, 0x0
14. Merlin+ Wax EISA BA (11) at 0xfc000000, versions 0x3a, 0x0, 0x90, 0x0, 0x0
15. Merlin+ Wax HIL (10) at 0xffe01000, versions 0x3a, 0x0, 0x73, 0x0, 0x0
16. Merlin+ Wax RS-232 (10) at 0xffe02000, versions 0x3a, 0x0, 0x8c, 0x0, 0x0
17. Gecko GSC Core Graphics (10) at 0xf8000000, versions 0x16, 0x0, 0x85, 0x0, 0x0
18. Dino PCI Bridge (13) at 0xfff80000, versions 0x680, 0x3, 0xa, 0x0, 0x0
That's a total of 18 devices.
Linux version 2.3.99-pre8 (grundler@hpisp747) (gcc version 2.9-hppa-991112) #229 Tue May 30 15:42:03 PDT 2000
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
trap_init
Calibrating delay loop... 105.27 BogoMIPS
Memory: 125960k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
c7ff0000 c7ff8000 c7fee000 c7ffc000
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
kmem_create: Poisoning requested, but con given - bdev_cache
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
kmem_create: Poisoning requested, but con given - inode_cache
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
request_irq(258, c01dd02c, 0x0, lasi, c7fea080)
enable_irq(258) 1+2
Wax at 0xffe00000 found.
request_irq(263, c01dd02c, 0x0, wax, c7fea140)
enable_irq(263) 1+7
request_irq(797, c01dd574, 0x0, wax_hil_nmi, 00000000)
enable_irq(797) 3+29
Wax: HIL Keyboard-NMI registered.
parport0: PC-style at 0xffd02800, irq 536 [PCSPP,TRISTATE]
request_irq(536, c01de064, 0x0, parport0, c7fedc00)
enable_irq(536) 2+24
Found serial #0 at 0xffd05000, IRQ 538
ttyS00 at iomem 0xffd05800 (irq = 538) is a 16550A
Found serial #1 at 0xffe02000, IRQ 793
ttyS00 at iomem 0xffe02800 (irq = 793) is a 16550A
Found i82596 at 0xffd07000, IRQ 535
early initialization of device eth0 is deferred
Initializing lasi keyboard port at 0xffd08000...
request_irq(517, c01cba18, 0x0, GSC PS/2, ffd08000)
enable_irq(517) 2+5
Initializing lasi mouse port at 0xffd08100...
Found HIL at 0xffe01000, IRQ 798
request_irq(798, c01cc3b8, 0x0, hil, ffe01000)
enable_irq(798) 3+30
do_irq_mask 10000000 c023853c c7f88780
mask_irq(259) 1+3
do_irq(259) 1+3
No handler for interrupt 259 !
unmask_irq(259) 1+3
HIL: timed out, assuming no keyboard present.
Warning : device (10, 0x3a, 0x0, 0x73, 0x0) NOT claimed by HIL 712, 715 or similiar
Dino version 3.1 (bridge mode) found at 0xfff80000
request_irq(259, c01dca1c, 0x0, dino, c7fea2c0)
enable_irq(259) 1+3
dino_common_init IARO 0fffffff8
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
kmem_create: Poisoning requested, but con given - skbuff_head_cache
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
Starting kswapd v1.6
pty: 256 Unix98 ptys configured
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
82596: 6 0 0 at c0252be0
82596: 6 ffd07000 217 at c7feda00
eth0: 82596 at 0xffd07000, 00 60 B0 07 E4 0C IRQ 535.
82596.c $Revision: 1.9 $
Serial driver version 4.93 (2000-03-20) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Linux Tulip driver version 0.9.4.3 (Apr 14, 2000)
pcibios_enable_device: Enabling device 01:02.0 (0150 -> 0153)
eth1: Digital DS21143 Tulip rev 33 at 0x1ff00, 00:60:B0:7A:0A:48, IRQ 1053.
eth1:  EEPROM default media type Autosense.
eth1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
eth1:  MII transceiver #17 config 3100 status 7849 advertising 0101.
eth1:  Advertising 01e1 on PHY 17, previously advertising 0101.
eth1:  Advertising 01e1 (to advertise is 01e1).
request_irq(535, c01d7e70, 0x0, i82596, c7feda00)
enable_irq(535) 2+23
do_irq_mask 20000000 c023853c c7f88840
mask_irq(258) 1+2
do_irq(258) 1+2
do_irq_mask 00000100 c7fea0e0 c7f88840
mask_irq(535) 2+23
do_irq(535) 2+23
unmask_irq(535) 2+23
unmask_irq(258) 1+2
disable_irq(535) 2+23
enable_irq(535) 2+23
do_irq_mask 20000000 c023853c c7f88840
mask_irq(258) 1+2
do_irq(258) 1+2
do_irq_mask 00000100 c7fea0e0 c7f88840
mask_irq(535) 2+23
do_irq(535) 2+23
unmask_irq(535) 2+23
unmask_irq(258) 1+2
do_irq_mask 20000000 c023853c c7f88840
mask_irq(258) 1+2
do_irq(258) 1+2
do_irq_mask 00000100 c7fea0e0 c7f88840
mask_irq(535) 2+23
do_irq(535) 2+23
unmask_irq(535) 2+23
unmask_irq(258) 1+2
do_irq_mask a0000000 c023853c c7f88840
mask_irq(258) 1+2
do_irq(258) 1+2
do_irq_mask 00000100 c7fea0e0 c7f88840
mask_irq(535) 2+23
do_irq(535) 2+23
eth0: link ok.
unmask_irq(535) 2+23
unmask_irq(258) 1+2
request_irq(1053, c01cf0dc, 0x4000000, eth1, c7f82800)
enable_irq(1053) 4+29
do_irq_mask 10000000 c023853c c7f88880
mask_irq(259) 1+3
do_irq(259) 1+3
do_irq_mask 00000004 c7fea320 c7f88880
mask_irq(1053) 4+29
do_irq(1053) 4+29

Dumping Stack from c7f88000 to c7f88ec0:
8000 00000000 00000140 00000000 00000000 c0240c10 00000001 00000000 ffffffff
8020 00000000 00000014 00000000 00000000 c0247708 00000000 00000000 c023d6f0
8040 c7f7803c c7f78000 c026c000 00000000 00000000 00000000 00000000 00000000
8060 00000000 00000000 00000001 00000000 00000000 00000000 00000000 c026c000
8080 c026c000 c7f70000 00000000 00000000 00000000 c028fcd8 00000000 c7f8809c
80a0 c7f8809c c7f880a4 c012bca8 c7f88888 00000000 00000000 00000000 00000000
80c0 00000000 00000000 00000000 00000000 00000000 00000000 c7f88000 c0131ae0
80e0 00000000 00000000 0000004a 00000000 00000000 00000028 00000000 00000072
8100 00000000 00000000 00000000 00000000 00000000 00000000 80000000 00000000
8120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
81a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
81c0 fffffeff fffffeff ffffffff 00000000 00000000 ffffffff ffffffff ffffffff
81e0 ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff ffffffff
8200 ffffffff 00000800 00000800 00000400 00000400 ffffffff ffffffff ffffffff
8220 ffffffff 00007377 61707065 72000000 00000000 00000000 00000000 00000000
8240 00000000 00000000 c7fee000 c04fbf18 f0000c70 f0100000 000000fd c7ffee00
8260 c01020fc c028f000 00505bf4 c7ff0000 c012d7a0 c012d7d8 c0241800 c7fee000
8280 c04fbf18 f0100000 c027278b 0004000a 0000003c 0000003e 0000000b c0241000
82a0 c02727af c02727af 00000004 00000000 c0102284 00000001 00000000 0000003e
82c0 0000003c 00000024 c0240c50 f0000194 07ffffe0 000000ff 0026c6c0 c0270000
82e0 c026e000 c00003a8 c02727af 00000003 00000000 c0238000 00000000 c026f100
8300 c026c880 c012d7a0 880f0800 08080800 e7bdf1ef 00c80000 00123844 18410486
8320 00000020 02040b40 08010020 09480030 a2208000 2d4c2801 80c2d020 00080400
8340 02b40024 90240640 40208c00 00002c42 80c1987c c6c8200c 88842000 010d0740
8360 c0c50040 480ca040 c0840024 0a888259 80b60004 10888001 00812000 84040103
8380 80858140 20880405 a880c094 00080610 82201081 08408801 40c10120 01810440
83a0 00840020 00890011 8c240000 211d8000 20a00001 802d2900 00000000 00000f04
83c0 0000001f 0000007c 0000007c 0a8c0000 0000001f 00092401 a2810044 e2081064
83e0 a2118880 01410000 a9804018 842c4001 88a0a8c6 002c2050 80800034 c7f884c0
8400 c0103438 a00a0c10 00000000 00000000 00000000 00000000 00248000 00000000
8420 c0247040 c0247060 00000000 c0247200 00000000 00000000 00000000 00000000
8440 00000000 c7f88440 00000000 00000000 00000000 00000000 00000000 00000000
8460 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
84a0 00000000 00000000 00000000 c0103448 00000000 00000000 00000000 00000000
84c0 c0247708 00000000 c026c000 00000000 00000000 00000000 00000000 00000000
84e0 00000000 00000000 00000000 c0102298 00000000 00000000 00000000 00000000
8500 00000000 00000000 00000000 00000000 c7f88000 c0247708 00000000 c026c000
8520 c026c600 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8540 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8560 00000000 00000000 00000000 c0258a98 00000000 00000000 00000000 00000000
8580 00000001 c024b000 00000000 00000000 c00003a8 c0240c44 c0240c44 c01e39d8
85a0 00000000 00000000 c02589c4 c02589c4 00000000 00000000 00000000 00000000
85c0 c0238000 c0268ea8 c0268ea4 000000fd ffffffff c0244a58 c7ffd3e0 00505bf4
85e0 c026c600 c028e800 c0290800 c02668ac c0268ea8 c0268e9c 00000000 00000000
8600 07ffffe0 f0000194 f0000c70 f0100000 000000fd ffffffff ffffffff c028f000
8620 00505bf4 c026c600 c028e800 c0290800 c0238000 c0268ea8 c0268ea8 00000000
8640 00000000 c7fe8c00 c01db000 c0252e78 c7fe8c00 c01ba4c0 c01ba618 c01bec80
8660 00000004 00000037 c01d9bf0 c026597c 00000064 0000003e 0000003c 0000003b
8680 c0268800 c7feb860 00001002 00000001 c7f82800 00001002 00000001 c7feda00
86a0 0a480028 00000000 00000000 c01db030 00080197 03000221 08000003 21080100
86c0 00000078 e0010050 c7f88608 00000000 c0290800 c7fe8c00 c7f85c20 c7f4fa40
86e0 00000000 00000000 c01e9c2c c01e9c2c 00000000 00000000 00000000 00000000
8700 00001003 00001002 c7f82800 00001002 ffffffff ffffffff c028f000 00505bf4
8720 c026c600 c028e800 c01e85cc c01e8600 c7f85c20 c7f4fa40 0000003c 00000058
8740 c7f82800 00001002 c021a000 c7f82800 00000000 00001003 00001002 c7feda00
8760 c028f000 c02535a4 c01eb360 c01eb360 f0000c70 f0100000 000000fd ffffffff
8780 c021a000 00000080 c021a000 c0268800 00000000 00000000 00000008 c0253800
87a0 00000012 c021a000 0000016b c021a000 00000080 c021a000 c0268800 00000000
87c0 00000000 00001002 c7f82800 c7f82800 04000000 c01cf0dc 0000041d c0116184
87e0 c7f4e660 0a888259 c01d3250 c01d32a0 00812000 84040103 80858140 20880405
8800 c7f82958 000000f0 0000016b c021a000 00000080 c021a000 c0268800 00000000
8820 00000000 00001002 c7f82800 c028f000 00001450 70b96000 c7f82940 00000006
8840 c7f82940 c01cf0dc c021a000 0000016b c021a000 00000080 c021a000 04000000
8860 c7f82800 c7f82800 c011a338 c01d3b3c 0000041d 0000016b c021a000 00000012
8880 0004ff0b 00000000 c01d3b3c c028f000 c7f82800 c7f82800 c7f82940 00000000
88a0 c0100000 c0268800 c021a000 00000080 0001ff00 0000016b c021a000 00000012
88c0 c0253800 00000008 c0268800 0e200220 0000000b 0000012b c01dc6e8 000001e1
88e0 0001ff30 fff80064 fff8006c c0238000 b20e2002 0000001f c7f88ac0 c011a260
8900 880f0800 08080800 e7bdf1ef 00c80000 00123844 18410486 00000020 02040b40
8920 08010020 09480030 a2208000 2d4c2801 80c2d020 00080400 02b40024 90240640
8940 40208c00 00002c42 80c1987c c6c8200c 88842000 010d0740 c0c50040 480ca040
8960 c0840024 0a888259 80b60004 10888001 00812000 84040103 80858140 20880405
8980 a880c094 00080610 82201081 08408801 40c10120 01810440 00840020 00890011
89a0 8c240000 211d8000 20a00001 802d2900 00000034 70b96000 00000000 00001450
89c0 00000000 00000064 0000002a 00092401 a2810044 e2081064 a2118880 01410000
89e0 a9804018 842c4001 88a0a8c6 002c2050 80800034 40000000 88910001 a00a0c10
8a00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8a20 00000000 00000000 c01d3b3c c01d3b40 00000000 c0241a9c 88910001 0000001f
8a40 34133e55 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8a60 00000000 00000000 c012d7c8 c012d7cc 00000000 40000000 88910001 00000017
8a80 2b641000 c021a000 0000016b c021a000 c0146000 00000000 00000002 00000007
8aa0 a5c32800 0000000b c7f7e260 c010469c 00000000 40000000 88910001 00000017
8ac0 00000012 c021a000 0000016b 0001ff00 00000080 c021a000 c0268800 00000000
8ae0 c7f82940 c7f82800 c7f82800 c028f000 00000000 00000103 80858140 0000001f
8b00 00000016 0000003c 0000003e 0000000b 00000003 00000001 00000103 c0115b54
8b20 00000015 00000000 00000001 c0115f74 00000102 c028fc40 00000000 00000000
8b40 10000000 00000003 00000001 00000103 00000003 00000001 00000103 c0115d48
8b60 10000000 10000000 c0115e08 c0115e08 00000103 c7fff1e8 c7fff1e0 00000000
8b80 c028f000 00000103 c0238284 c7f88880 c023853c 00000100 00000002 c0238560
8ba0 10000000 c7f88880 c028f000 c01dca58 c0238284 00000102 00000000 00000018
8bc0 c0116000 c0116000 c7f88880 c023853c 00000100 00000002 c0238560 10000000
8be0 c7f88880 c7f88880 00000005 c7fea2c0 c027278b 00000103 c0116000 00000000
8c00 c027278b c027278b 0000003c 0000003e 0000001d 00000004 0000041d c0115b54
8c20 00000004 0000000f c0115f3c c0115f74 c027278b c0238284 c7f88e00 00000000
8c40 00000004 0000001d 00000004 0000041d 0000001d 00000004 0000041d c0115d48
8c60 00000004 00000004 c0115e08 c0115dd0 0000041d c028fc40 00000000 00000000
8c80 000c000a 00000000 c0115e08 c7fedab8 0000041d c028f000 c7f88880 00000004
8ca0 c0100000 c0238560 00000002 00000100 c7fea320 c7f88880 c0116000 c0116000
8cc0 c7f88880 00000008 c0268800 4bc23800 07f88d80 c0270000 c7f7e260 c00003a8
8ce0 c7f88880 00000064 0000041d c0238000 00000012 c026f100 c7f88ec0 c0115e08
8d00 880f0800 08080800 e7bdf1ef 00c80000 00123844 18410486 00000020 02040b40
8d20 08010020 09480030 a2208000 2d4c2801 80c2d020 00080400 02b40024 90240640
8d40 40208c00 00002c42 80c1987c c6c8200c 88842000 010d0740 c0c50040 480ca040
8d60 c0840024 0a888259 80b60004 10888001 00812000 84040103 80858140 20880405
8d80 a880c094 00080610 82201081 08408801 40c10120 01810440 00840020 00890011
8da0 8c240000 211d8000 20a00001 802d2900 00000034 70b96000 00000000 00001450
8dc0 00000000 00000064 0000002a 00092401 a2810044 e2081064 a2118880 01410000
8de0 a9804018 842c4001 88a0a8c6 002c2050 80800034 40000000 88910001 a00a0c10
8e00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8e20 00000000 00000000 c7f7ef40 c7f7ffa0 00000000 c7f88c50 00000000 0000001d
8e40 5a5a5a5a 00000000 c026952d 00000000 00000000 00000000 00000000 00000000
8e60 00000000 00000000 00000000 c0115f74 00000000 00000000 00000000 00000000
8e80 80000000 00000000 00000001 00000100 00000000 00000000 00000000 00000000
8ea0 00000000 00000000 c0115e08 c01048e8 00000004 00000000 00000000 00000000

Unexpected Interruption!: Code=8 regs=c7f88c80 (Addr=00000000)

PSW  : 000c000a  GR 1 : 00000000  GR 2 : c0115e08  GR 3 : c7fedab8  
GR 4 : 0000041d  GR 5 : c028f000  GR 6 : c7f88880  GR 7 : 00000004  
GR 8 : c0100000  GR 9 : c0238560  GR10 : 00000002  GR11 : 00000100  
GR12 : c7fea320  GR13 : c7f88880  GR14 : c0116000  GR15 : c0116000  
GR16 : c7f88880  GR17 : 00000008  GR18 : c0268800  GR19 : 4bc23800  
GR20 : 07f88d80  GR21 : c0270000  GR22 : c7f7e260  GR23 : c00003a8  
GR24 : c7f88880  GR25 : 00000064  GR26 : 0000041d  GR27 : c0238000  
GR28 : 00000012  GR29 : c026f100  GR30 : c7f88ec0  GR31 : c0115e08  
SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000  
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  

IASQ : 00000000 00000000 IAOQ : c7f7ef40 c7f7ffa0
 IIR : 5a5a5a5a ISR : 00000000 IOR : c026952d

Code 8 ==  illegal instruction trap.

GR2 0xc0115e08 do_irq+88
IAOQ is stack, iirc.
IOR is 0xc026952d __initcall_end+685


From - Thu Nov 08 21:12:41 2018
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From: Philipp Rumpf <prumpf@puffin.external.hp.com>
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Subject: Re: [parisc-linux] CONFIG_SYSCTL is not set
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Xref: news.gmane.org gmane.linux.ports.parisc:7392

On Mon, May 29, 2000 at 07:01:07PM -0700, Grant Grundler wrote:
> Philipp Rumpf wrote:
> > I wouldn't really consider this a bug, but if anyone does he should 
> > probably report it to whoever is working on that code in 2.3. 
> 
> If anyone wants to build x86 install/rescue disks, I think they can't now.
> Either the Configure.help is wrong or the code is wrong.
> I don't know how to submit a BUG.
> Any pointers on where this bug should go?

You were right.  It's just annoying behaviour not to compile at all, so
I submitted a patch to Alan (obviously, RPC_DEBUG doesn't make sense if
CONFIG_SYSCTL isn't defined).

So ac7 shouldn't have this problem.

	Philipp


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: [parisc-linux] Binutils update
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I've just checked in the following:

Rewrite much of the stub handling code (still using r8)
Fix expression parsing for `!' line separator. 
Fix sizing of branches & other miscellaneous small fixes. 

Feedback appreciated.
Paul, did you get tar to run?

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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= Paul, did you get tar to run?

Yes!  After it linked it worked fine.

	-P


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Oops, it would probably be helpful to see a little more context:

gcc -W -Wall -g -O2 -o as-new app.o as.o atof-generic.o bignum-copy.o cond.o depend.o dwarf2dbg.o ecoff.o ehopt.o expr.o flonum-copy.o flonum-konst.o flonum-mult.o frags.o hash.o input-file.o input-scrub.o listing.o literal.o macro.o messages.o output-file.o read.o sb.o stabs.o subsegs.o symbols.o write.o tc-hppa.o obj-elf.o atof-ieee.o ../opcodes/.libs/libopcodes.a ../bfd/.libs/libbfd.a ../libiberty/libiberty.a
read.o: In function `read_a_source_file':
/users/bame/palinux/binutils-2.10/gas/read.c:1107: undefined reference to `found_comment'
collect2: ld returned 1 exit status


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Making, drinking tea and reading an opus magnum from Mike Shaver:
> Alan Cox wrote:
> > If you want to run PH/UX binaries then you need to probably follow their
> > layout
> 
> Yeah, but OpenBSD runs their binaries and seems to use the 0xC0000000
> division.
hey! thank you very much, but we are not running hp/ux binaries on hppa yet (;
syscalls are done in hpux/lites/mklinux/osf/linux(?;) compatible way.
not all sources are in the repo tho (i'm doing things one at a time)

> > The m68k people use the 'spaces' equivalent on the m68k quite heavily
> 
> So we should be reading up on the spaces use in the arch/m68k code, then
> =).
and hp300 (which is m68k) is doing syscalls throught the trap#n actually
(for both hpux and bsd)

cu

> 
> Mike
> 
> -- 
> 351839.03 300276.13
> 
> -------------------------------------------------------------------------
> To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


-- 
    paranoic mickey       (my employers have changed but, the name has remained)


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Alan Modra wrote:
> I've just checked in the following:
> 
> Rewrite much of the stub handling code (still using r8)
> Fix expression parsing for `!' line separator. 
> Fix sizing of branches & other miscellaneous small fixes. 
> 
> Feedback appreciated.

Ok.  I get an error when building:
...
gcc -W -Wall -g -O2 -o as-new app.o as.o atof-generic.o bignum-copy.o cond.o depend.o dwarf2dbg.o ecoff.o ehopt.o expr.o flonum-copy.o flonum-konst.o flonum-mult.o frags.o hash.o input-file.o input-scrub.o listing.o literal.o macro.o messages.o output-file.o read.o sb.o stabs.o subsegs.o symbols.o write.o tc-hppa.o obj-elf.o atof-ieee.o ../opcodes/.libs/libopcodes.a ../bfd/.libs/libbfd.a ../libiberty/libiberty.a
read.o: In function `read_a_source_file':
/linux/grundler/build-2.10-32/gas/../../binutils-2.10/gas/read.c:1107: undefined reference to `found_comment'
collect2: ld returned 1 exit status
make[3]: *** [as-new] Error 1
make[3]: Leaving directory `/linux/grundler/build-2.10-32/gas'
make[2]: *** [all-recursive] Error 1
...

Any idea what's missing?

config.status contains:
../binutils-2.10/configure --host=i686-pc-linux-gnu --target=hppa1.1-linux --prefix=/opt/puffin --disable-nls --norecursion 

I assume that's the original config line plus some defaults.

thanks,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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= So who *is* generating interrupt on EIRR bit 3?
= And do they interfer with Dino operation later by
= generating additional spurious interrupts?

It goes away when I remove CONFIG_VT...  Perhaps coincidence, perhaps not.

	-P


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On Thu, 1 Jun 2000, Paul Bame wrote:

> gcc -W -Wall -g -O2 -o as-new app.o as.o atof-generic.o bignum-copy.o cond.o depend.o dwarf2dbg.o ecoff.o ehopt.o expr.o flonum-copy.o flonum-konst.o flonum-mult.o frags.o hash.o input-file.o input-scrub.o listing.o literal.o macro.o messages.o output-file.o read.o sb.o stabs.o subsegs.o symbols.o write.o tc-hppa.o obj-elf.o atof-ieee.o ../opcodes/.libs/libopcodes.a ../bfd/.libs/libbfd.a ../libiberty/libiberty.a
> read.o: In function `read_a_source_file':
> /users/bame/palinux/binutils-2.10/gas/read.c:1107: undefined reference to `found_comment'
> collect2: ld returned 1 exit status

Oops.  That leaked in from a patch I made to help find semicolons lurking
in C asm statements.  I've reverted the patch to gas/read.c

-- 
Linuxcare.  Support for the Revolution.



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On Thu, 1 Jun 2000, Ryan Bradetich wrote:

> Here is a minor patch to the binutils so it will compile on HP-UX 10.20
> (C200+)

Applied.  Please send a ChangeLog entry too in future.

-- 
Linuxcare.  Support for the Revolution.


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Richard Hirst wrote:
...
> The solution might be to make register_serial() aware of whether rs_init()
> has yet been called.  If it hasn't, register_serial() just queues the
> struct_serial that was passed in and returns success.  At the end of
> rs_init() we call register_serial() again for each item in the queue.
> This is similar to what happens with the net devices.

Richard,
For lack of visible discussion, I'd say just do it.

This sounds like a reasonable approach. Error recovery is the only
potential pitfall.

thanks,
grant


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Wouldn't it be nice to use the leds in front of the machine for debugging?

BTW: On my Apollo 715/50 Linux runs quite stable (built with bin
2: The PA-RISC version of Mach contains nice code......




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From: Philipp Rumpf <prumpf@puffin.external.hp.com>
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Subject: Re: [parisc-linux] LED's on the machine
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Xref: news.gmane.org gmane.linux.ports.parisc:7403

On Thu, Jun 01, 2000 at 08:39:35PM +0200, Bas Valkema wrote:
> Wouldn't it be nice to use the leds in front of the machine for debugging?

The code is there, if you want to use it (if it isn't in the TPG tree
it's in the SF one).  I prefer having a stable console so you don't
actually need to decode leds all the time.

> 2: The PA-RISC version of Mach contains nice code......

which you cannot copy-and-paste (license problems) but you can use as a
reference implementation - and really you don't want to do more than that.

	Philipp Rumpf


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Subject: [parisc-linux] [kaos@ocs.com.au: Announce: kdb v1.2 is available]
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Keith mentions he's `positioning kdb for different architectures'.  Any
volunteers to hack on this for parisc?

----- Forwarded message from Keith Owens <kaos@ocs.com.au> -----

Delivered-To: thepuffi-willy@thepuffingroup.com
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From: Keith Owens <kaos@ocs.com.au>
To: kdb@oss.sgi.com
Cc: linux-kernel@vger.rutgers.edu
Subject: Announce: kdb v1.2 is available
Date: 	Fri, 02 Jun 2000 17:00:01 +1000
Precedence: bulk
X-Loop: 	majordomo@vger.rutgers.edu

SGI Kernel Debugger - http://oss.sgi.com/projects/kdb

kdb v1.2 is available for ix86 with patches against 2.3.99-pre2 and
2.4.0-test1.  You need modutils >= 2.3.11 to use kdb v1.2.

Most changes are internal, positioning kdb for different architectures.
Users will see better symbol information, hardware and software
breakpoints, more reliable SMP handling.



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Subject: [parisc-linux] New glibc and new linker SEGV
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I mergeed our glibc with June 1 sources from sourceware.cygnus.com
and it appears to be pretty healthy so I'm committing it.  FYI the
CVS e-mail message is truncated because after 30 minutes of CPU time
I got tired of waiting for the damn perl script and killed it :->

However the glibc build needs to be faked out a bit because the latest
(otherwise pretty darn good) linker is dying inside the glibc build
with:

    hppa1.1-linux-gcc -nostdlib -nostartfiles -o locale/localedef [...]
    collect2: ld terminated with signal 11 [Segmentation fault], core dumped
    make[2]: *** [/work/xc-build/build-glibc/locale/localedef] Error 1

Since these glibc-built executables aren't being used yet, I fake out
the build by doing "cp /bin/date locale/localedef", then run make again,
copy /bin/date over the next failed link target, repeat until the make
succeeds.

Oh, and if you see
    test ! -d CVS || cvs commit -m'Regenerated from ../sysdeps/gnu/errlist.awk ../manual/errno.texi' ../sysdeps/gnu/errlist.c
    Permission denied
just restart the make :-(

I updated the pre-built toolchain for Debian potato x86 at
ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/elf32x86.tar.gz

		-Paul Bame


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] New glibc and new linker SEGV
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On Fri, 2 Jun 2000 bame@puffin.external.hp.com wrote:

>     hppa1.1-linux-gcc -nostdlib -nostartfiles -o locale/localedef [...]
>     collect2: ld terminated with signal 11 [Segmentation fault], core dumped
>     make[2]: *** [/work/xc-build/build-glibc/locale/localedef] Error 1

Arrgh.  More of those undefined weak symbols.  This one used DPREL21L, and
sym_sec is NULL...  I'll be committing a fix soon, after I've done some
testing.

Regards, Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Christopher Neufeld <neufeld@physics.utoronto.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [hppa-linux] Picky details of TLB fault handlers
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   Here's a question probably best suited for the folks at HP. The
PA-RISC 2.0 documentation says that a (software) TLB miss fault handler
cannot use virtual addressing. OK, what constitutes an exit from the
handler? Can you use virtual addressing after the last modification the
handler makes to the TLB (perhaps after executing several instructions
which don't require virtual addressing to load the pipeline), or do you
have to execute an explicit return from interrupt?


-- 
 Christopher Neufeld                   neufeld@physics.utoronto.ca
 Home page:  http://caliban.physics.utoronto.ca/neufeld/Intro.html
 "Don't edit reality for the sake of simplicity"


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ttyS00 reported twice
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Xref: news.gmane.org gmane.linux.ports.parisc:7408

On Thu, Jun 01, 2000 at 11:04:08PM -0700, Grant Grundler wrote:
> Richard Hirst wrote:
> ...
> > The solution might be to make register_serial() aware of whether rs_init()
> > has yet been called.  If it hasn't, register_serial() just queues the
> > struct_serial that was passed in and returns success.  At the end of
> > rs_init() we call register_serial() again for each item in the queue.
> > This is similar to what happens with the net devices.
> 
> Richard,
> For lack of visible discussion, I'd say just do it.

I have taken a different approach, and made rs_init() call probe_serial_gsc()
after calling probe_serial_pci().  We no longer attempt to register serial
drivers from busdevices_init().  I also removed a few gsc specific hacks
from serial.c, as they don't appear to be necessary any more.

Richard


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From: Alexander Strauss <strauss@astracom.net>
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Subject: [parisc-linux] documentation?
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Hi there,

I know that PA-RISC Linux is still in a early development stage, but
anyway I'd like to test the existing code on a 715/100. Is there any
useful documentation about what that packages are containing and how to
install and get it running?

Thanks!
-- 
best regards,
Alexander Strauss <strauss@astracom.net>


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In-Reply-To: <393A468E.DB0F32A0@astracom.net>; from Alexander Strauss on Sun, Jun 04, 2000 at 02:07:42PM +0200
Xref: news.gmane.org gmane.linux.ports.parisc:7410

On Sun, Jun 04, 2000 at 02:07:42PM +0200, Alexander Strauss wrote:
> Hi there,
> 
> I know that PA-RISC Linux is still in a early development stage, but
> anyway I'd like to test the existing code on a 715/100. Is there any
> useful documentation about what that packages are containing and how to
> install and get it running?

have you read the website?  http://www.thepuffingroup.com/parisc/
if so, what information do you require that is lacking?

-- 
The Sex Pistols were revolutionaries.  The Bay City Rollers weren't.


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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Binutils update.
Date: Tue, 06 Jun 2000 21:35:48 -0600
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Hello all,

I have finished working through all the compiler warnings and errors in
the binutils-2.10 build for the HP ansi compiler in ANSI and non-ANSI
mode.  Unfortunately I am with out a i386 system atm :( (Will be
remedied
soon!) so I can not test the cross compiler.  If someone with access to
an
i386 would test this for me I would appreciate it. :)

Just wanted to give an update to the list, so people could try out my
changes
and make sure I didn't break anything! *fingers crossed*

Well off to step 3 in the recipe now....

Later,
- Ryan



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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
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Subject: Re: [parisc-linux] 715/33 booting from SCSI disk nearly ok
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--- Ulrich Strelow <ulrich_strelow@yahoo.com> wrote:
> Hi all,
> 
> first the good news: following Paul's excellent palo
> documentation I succeeded to boot my 715/33 from its
> internal HP C3324A SCSI disk. I booted the kernel
> from
> the special F0 partition and used the ext2 fs on
> partition 2 as the root filesystem.
> 
> But booting the kernel /vmlinux directly from the
> ext2
> filesystem fails.
 
With the recent changes to palo, this problem has been
solved. Booting a pre1-kernel from the internal SCSI
disk's ext2 filesystem now works fine on my 715/33.

Ulrich

__________________________________________________
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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Booting a pre8-kernel on a 715/33 fails
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Hi,

after the pre8-merge, booting a kernel on my 715/33
fails. I have checked out the linux-2.3 tree this
morning and build a kernel. The bootlog stops when the
ASP chip is initialized. Here is the complete log
(booted via rbootd):

Trying lan.0004ac-4425c5.0.0
Boot path initialized.
Attempting to load IPL.

Hard booted.
palo ipl ulli@Ullis_PC Wed Jun  7 06:37:35 MEST 2000
0/vmlinux 2575693 bytes @ 0x7800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX
root=/dev/nfs nfsroot=149.234.204.34
 '
Kernel: partition 0 file /vmlinux
ELF32 executable
                prepare_loadable 00503680 2

Entry 00101c9c first 00100000 n 4
Segment 0 load 00100000 size 1461596 mediaptr 0x1000
Segment 1 load 00266000 size 124028 mediaptr 0x166000
Segment 2 load 00288000 size 69524 mediaptr 0x185000
Segment 3 load 0029c000 size 8192 mediaptr 0x196000
branching to kernel entry point 0x00101c9c
pdc_cons registered !
The Kernel has started...
Free memory starts at: 0xc02ca000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs
nfsroot=149.234.204.34 '
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00003110 00000481 00000000 00000000 78294d38
ffffffff 00000004 0000000a
0000000a
vers    00000013
CPUID vers 0 rev 0
CPU(s): 1 x PA7100 at 33.333500 MHz
Searching for devices in PDC firmware...  an older
box...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000,
versions 0x6, 0x0, 0x77, 0x0, 0x0
2. Scorpio Jr. Core BA (11) at 0xf082f000, versions
0xb, 0x0, 0x70, 0x0, 0x0
3. Scorpio Jr. Core SCSI (10) at 0xf0825000, versions
0xb, 0x0, 0x71, 0x0, 0x0
4. Scorpio Jr. Core LAN (802.3) (10) at 0xf0826000,
versions 0xb, 0x0, 0x72, 0x0, 0x0
5. Scorpio Jr. Core HIL (10) at 0xf0821000, versions
0xb, 0x0, 0x73, 0x0, 0x0
6. Scorpio Jr. Core RS-232 (10) at 0xf0823000,
versions 0xb, 0x0, 0x75, 0x0, 0x0
7. Scorpio Jr. Core RS-232 (10) at 0xf0822000,
versions 0xb, 0x0, 0x75, 0x0, 0x0
8. Scorpio Jr. Core Centronics (10) at 0xf0824000,
versions 0xb, 0x0, 0x74, 0x0, 0x0
9. Scorpio Jr. Audio (10) at 0xf1000000, versions 0xb,
0x0, 0x7b, 0x0, 0x0
9. Scorpio Jr. Audio (10) at 0xf1000000, versions 0xb,
0x0, 0x7b, 0x0, 0x0
11. Scorpio Jr. (1) at 0xfffbf000, versions 0x1b, 0x0,
0x9, 0x0, 0x0
That's a total of 11 devices.
Linux version 2.3.99-pre8 (ulli@Ullis_PC) (gcc version
2.9-hppa-991112) #1 Wed Jun 7 06:27:41 MEST 2000
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 12288
zone(0): 6144 pages.
zone(1): 6144 pages.
zone(2): 0 pages.
trap_init
Calibrating delay loop... 30.11 BogoMIPS
Memory: 45380k available
Dentry-cache hash table entries: 8192 (order: 4, 65536
bytes)
c2ff0000 c2ff8000 c2fde000 c2ffc000
Buffer-cache hash table entries: 1024 (order: 0, 4096
bytes)
Page-cache hash table entries: 16384 (order: 4, 65536
bytes)
kmem_create: Poisoning requested, but con given -
bdev_cache
Inode-cache hash table entries: 4096 (order: 3, 32768
bytes)
kmem_create: Poisoning requested, but con given -
inode_cache
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
request_irq(259, c0209904, 0x0, asp, c2fd9080)

Any ideas what's wrong ?

Ulrich

__________________________________________________
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From: Tara Dear <tdear@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Unable to open console on a 712
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I am trying to boot a 712/80.

When built with ramdisk20000530-sticon.tgz and specifing sti console in
menuconfig, make dep doesn't run clean

When built with ramdisk2000530-sticon.tgx and NOT specifing sti console
in menusconfig, make dep works but  booting stops after :

        kmem_create: Forcing size work alignment -nfs_fh
        VFS: Mounted root (ext2 filesystem)
        request_irq(538, c01bb030, 0x4000000, serial, c0289794)

At this point certain key strokes create responses
        keyb_at: K_NONE for 125                              //when
pushing page up
or
        keyboard: unrecognized scancode (61) - ignored
//when pushing ctrl

I can ping the 712 but I can't get the console.

Any ideas??


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Unable to open console on a 712
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Hi Tara,

Am Wed, 07 Jun 2000 schrieb Tara Dear:
> I am trying to boot a 712/80.
>
> When built with ramdisk20000530-sticon.tgz and specifing sti console in
> menuconfig, make dep doesn't run clean

I will look into this later this evening. 
(did you disabled the serial-console in this configuration ?).

>
> When built with ramdisk2000530-sticon.tgx and NOT specifing sti console
> in menusconfig, make dep works but  booting stops after :
>
>         kmem_create: Forcing size work alignment -nfs_fh
>         VFS: Mounted root (ext2 filesystem)
>         request_irq(538, c01bb030, 0x4000000, serial, c0289794)

This seems to be correct. The kernel switches to the serial-console, so that 
all output goes to your serial port. You should check it again with 
ramdisk20000530-sercon.tgz or change the major/minor of /dev/console in the 
sticon-ramdisk to 5,1. 

>
> At this point certain key strokes create responses
>         keyb_at: K_NONE for 125                              //when
> pushing page up
> or
>         keyboard: unrecognized scancode (61) - ignored
> //when pushing ctrl

you get this output, because we do not disable the pdc-console completely for 
now.

>
> I can ping the 712 but I can't get the console.
>
> Any ideas??
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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From: "Paulius Pazera" <paulius@glds.com>
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Subject: [parisc-linux] Bootable CD image
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Hi guys,


Our company bought HP9000/800/H30 from auction. Hardware is ok, it boots
HP-UX 9 fine, but there is not much to do without root password and CDs. The
only chance I can see to make it functional is to install Linux.
Unfortunately I could not find anything to start with. Could somebody tell
me where from I can download bootable CD image and basic development
utilities (gcc, glibc, etc) for pa-risc linux. Thanks a lot.


Paulius



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From: Matt Taggart <taggart@carmen.fc.hp.com>
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In-Reply-To: Message from "Paulius Pazera" <paulius@glds.com> 
   of "Fri, 09 Jun 2000 09:30:14 PDT." <006f01bfd230$00383510$4808a8c0@glds.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:7417


"Paulius Pazera" writes...

> Our company bought HP9000/800/H30 from auction. Hardware is ok, it boots
> HP-UX 9 fine, but there is not much to do without root password and CDs. The

You *could* boot it single user and change the root password.

> only chance I can see to make it functional is to install Linux.
> Unfortunately I could not find anything to start with. Could somebody tell
> me where from I can download bootable CD image and basic development
> utilities (gcc, glibc, etc) for pa-risc linux. Thanks a lot.

The port is still in progress, so there are no "bootable CD image"s yet. Right 
now the kernel builds and boots and there are drivers for some older devices. 
There is also a cross-toolchain(static) and some static userspace apps. There 
is a hardware database at,

http://216.208.98.4/

with entries for H20 and H50. Perhaps you could submit an entry for H30?

If you want to try the kernel on your H30 you can follow the recipe at,

http://www.thepuffingroup.com/parisc/recipe.html

-- 
Matt Taggart
taggart@fc.hp.com



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From: Bjorn Helgaas <helgaas@rsn.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] Picky details of TLB fault handlers
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Xref: news.gmane.org gmane.linux.ports.parisc:7418

Christopher Neufeld wrote
>
>The PA-RISC 2.0 documentation says that a (software) TLB miss fault handler
>cannot use virtual addressing. OK, what constitutes an exit from the
>handler? Can you use virtual addressing after the last modification the
>handler makes to the TLB (perhaps after executing several instructions
>which don't require virtual addressing to load the pipeline), or do you
>have to execute an explicit return from interrupt?

I think you just have to make sure that you can recover from all the
TLB miss faults you might encounter.  In order to recover, you need the
program counter at the time the trap occurred.  If the PSW Q-bit was set
at the time of interruption, the PSW and program counter are captured in
the IPSW and IIA queues, and the PSW Q-bit is cleared.  When you do the
RFI to "return from interrupt", the PSW and program counter with which
to resume are taken from from the IPSW and IIA queues.

So the software TLB miss handler runs with the Q-bit off.  If another
interruption occurred with the Q-bit off, the IPSW and IIA queues
would still reflect the point of the original TLB miss, *not* the point
where the second interruption occurred, and you would have to think very
carefully about whether this is what you want.  If the second interruption
happened to be another TLB miss, you would not get the ISR/IOR (because
the Q-bit was off), so it would be pretty tough to handle it.

You can certainly save the IPSW and IIA queues somewhere, then turn on
the Q-bit, go virtual, and do your interrupt handling in virtual mode.
In this case, you will execute an RFI just in order to turn on the Q-bit,
but the program counter at which to resume will be somewhere in the
interrupt handler, not the point where the original interruption occurred.
When you eventually finish the interrupt handler, you look up your saved
IPSW and IIA queues and do another RFI to return "for real".

HP-UX does exactly this sort of thing for handling many traps and
interrupts.  It is fairly expensive, though, since you have to have
a stack on which to save the IPSW/IIAQ and probably a bunch of other
registers, and it's too much messing around for a TLB miss.

-------------
Bjorn Helgaas   helgaas@rsn.hp.com  telnet 1-497-3069  (972)497-3069


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] hpux11 build problems.
Date: Sat, 10 Jun 2000 11:20:55 +1000 (EST)
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cc'ing back to the list.  Someone may be able to give better answers than
I have (and others may find my answers useful)

On Fri, 9 Jun 2000, [iso-8859-1] SOETE Jol wrote:

> Dear Alan,
> 
> I do not know exactly if you are aware of this kind of problem but any way
> could help me in connecting me to the right people.
> I subscribe to the mailing list but no feedback?

I think you need to put [parisc-linux] in the subject somewhere.

> Thanks you advance for your help and understand,
> 	Joel
> 
> > -----Original Message-----
> > From:	SOETE Jol 
> > Sent:	Monday, May 15, 2000 8:18 AM
> > To:	'cjbeard@thepuffingroup.com'; 'adevries@thepuffingroup.com'
> > Subject:	
> > 
> > Dear Christopher and Alex,
> > 
> > I just find a workstation C110 (model 9000/777) with 2 disk of 4Gb and
> > 64Mb of memory and some time to install HP-UX 11.00 (release May 99) with
> > patch bundle March 2000.
> > 
> > I then try first to start to first install binutils but failed because
> > flex or lex not available.
> > 
> > I then install HP C compiler which bring lex and yacc. Then I retry to
> > build binutils but still failed because bison is not available (even
> > thought yacc is well available)?

flex and bison aren't actually needed to compile binutils, as the
files produced by them are in CVS.  However, when checking out a binutils
tree, you may end up with the generated files having an earlier date stamp
than their corresponding source files.  "make" then thinks they need to
be rebuilt.  To get around this problem, you can just "touch" the
generated files to update their date/time stamps.

> > Then I remove (swremove) the bundle of HP C compiler and install
> > precompiled GNU tools (bison-1.28-1,binutils-2.9.1-1, flex-2.5.4-1,
> > gcc-2.8.1-2, make-3.77-1, patch-2.5.1-1, les-3.40-1 (all.hpux-11.0.depot
> > naturally)). I then add /usr/local/bin to my PATH. Is it enough (versus
> > described problem below)?

Should be.

> > Then I try to rebuild directly the kernel and 'make oldconfig' works but
> > 'make dep' failed because did not found cpp (which stand well in the gcc
> > package).
> > 
> > I would like to have your advise. What links do I have to set or what tree
> > do I add to my PATH?

You haven't given me enough info to decide what the problem is here.  One
work-around you can use is to "touch .depend" and avoid the "make dep"
completely.  I build kernels this way;  It's safe if you always start off
from a clean directory.

> > Would it be better to work with gcc-2.8.1-1 (on Software Porting And
> > Archive Center for HPUX  (http://hpux.connect.org.uk/) it was no more
> > available) or to prefer HPUX 10.20? Or is it requested to install also
> > egcs-1.1.2-1?

You may be better off using the puffin gcc.  Is gcc-2.8.1 suitable for
hpux11?  I thought there was some problem with it, but maybe HP have
patched the version of gcc available from their site.

-- 
Linuxcare.  Support for the Revolution.



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From: Phil Schwan <phil@off.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Bootable CD image
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Xref: news.gmane.org gmane.linux.ports.parisc:7420

On Jun 09, Matt Taggart wrote:
> There is also a cross-toolchain(static) and some static userspace apps. There 
> is a hardware database at,
> 
> http://216.208.98.4/

Please don't reference 216.208.98.4, as the hardware database will be
moving shortly, and the address will be deprecated.  Instead, please
use http://www.thepuffingroup.com/parisc/hw.html when referring to the
hardware database.

Thanks--

-Phil


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From: "T. Martin" <catfish@alltel.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Bootable CD image
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Paulis, 
 I had the same prob, 
hardboot the thing it will ask you to fsk the drives (y/n) say no
it might drop you into root console then just passwd root and your HP-Unix
9.xx should accessable after fscking the drives. 
BUT it is not y2k compliant, it's a minor error on my 715's. 


catfish: icq #20116127


On Fri, 9 Jun 2000, Paulius Pazera wrote:

> Hi guys,
> 
> 
> Our company bought HP9000/800/H30 from auction. Hardware is ok, it boots
> HP-UX 9 fine, but there is not much to do without root password and CDs. The
> only chance I can see to make it functional is to install Linux.
> Unfortunately I could not find anything to start with. Could somebody tell
> me where from I can download bootable CD image and basic development
> utilities (gcc, glibc, etc) for pa-risc linux. Thanks a lot.
> 
> 
> Paulius
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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From: Steven Pritchard <steve@silug.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] hpux11 build problems.
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 "from Alan Modra at Jun 10, 2000 11:20:55 am"
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Alan Modra said:
> > > Would it be better to work with gcc-2.8.1-1 (on Software Porting And
> > > Archive Center for HPUX  (http://hpux.connect.org.uk/) it was no more
> > > available) or to prefer HPUX 10.20? Or is it requested to install also
> > > egcs-1.1.2-1?
> 
> You may be better off using the puffin gcc.

More specifically, I'd *avoid* the gcc in
puffin.external.hp.com/pub/parisc/binaries/depot/.  That's really only
there because a) I packaged it, and b) I thought it might be useful
for getting a better toolchain compiled.  It seemed to work for me,
but I never really tested it all that well.  I mostly used the egcs
that's also there to compile everything, although I'm pretty sure that
neither is suitable for compiling the kernel...

I guess I really need to get the CVS gcc packaged up for everyone...
Is it in a reasonably stable state at the moment?

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(618)398-7320             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] hpux11 build problems.
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> I guess I really need to get the CVS gcc packaged up for everyone...
> Is it in a reasonably stable state at the moment?

There have been a lot of changes over the recent months.  Although I sense
that there is now a move to get it back to a stable state, it certainly
hasn't reached a stable state.  The new version also still has to go
through a shake out period before the next release.  The C compiler
is in better shape than C++.

The mainline CVS version is the only one that supports hpux 11.  However,
for a cross to build the linux kernel, it probably would be better to use
the release version 2.95.2 or the 2.95 CVS branch.  These are much more
reliable in my opinion.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi, 
 I'm trying to build the things according to the recipe but theres only
one question so far. 
 Whats the best way to install egcs without screwing up the gcc I have
already installed? 
 egcs builds clean so should I have reseverations about overwriting my
current gcc?

Thanks 
Terry


catfish: icq #20116127



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Subject: [parisc-linux] oops, egcs didn't build all the way...
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egcs failed to build, 
RH 6.1
ar: libE77/Labort.o: No such file or directory
make[2]: *** [libg2c.a] Error 1
make[2]: Leaving directory `/opt/puffin/egcs/i586-pc-linux-gnu/libf2c'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/opt/puffin/egcs/i586-pc-linux-gnu/libf2c'
make: *** [all-target-libf2c] Error 2
[root@jesse egcs]# 
with that error any suggestions? 
Thanks 
Terry

catfish: icq #20116127



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From: "Pedro G. Gonnet" <pedro@vis.ethz.ch>
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Subject: [parisc-linux] isa-ethernet for hp9000/735
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hello!

a while ago i inherited a 9000/735 with a fddi-interface and a free
isa-slot. what kind of ethernet hardware (that i can still get my hands
on for not too much money) will work with linux or hpux? this
information is pretty much fundamental to getting the machine up and
running...

thanks in advance

pedro gonnet

p.s. as i can't read the posts to often, i would greatly appreciate
replies to my e-mail ;) thanks!


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Subject: Re: [parisc-linux] Recipe question
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>  I'm trying to build the things according to the recipe but theres only
> one question so far. 
>  Whats the best way to install egcs without screwing up the gcc I have
> already installed? 

Use "--prefix=something" to set the installation base directory.  Do this
for both binutils and gcc.

Use "configure --help" to see all build options.  Sometimes subdirectories
have different options.

>  egcs builds clean so should I have reseverations about overwriting my
> current gcc?

Yes.  Keep your current gcc.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] oops, egcs didn't build all the way...
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I just did the ./configure and make and it was building it from there. 
This is the egcs cross compiler from the puffin cvs. 
Thanks. 


catfish: icq #20116127


On Wed, 14 Jun 2000 willy@thepuffingroup.com wrote:

> On Wed, Jun 14, 2000 at 12:05:06AM -0500, T. Martin wrote:
> > egcs failed to build, 
> > RH 6.1
> > ar: libE77/Labort.o: No such file or directory
> > make[2]: *** [libg2c.a] Error 1
> > make[2]: Leaving directory `/opt/puffin/egcs/i586-pc-linux-gnu/libf2c'
> 
> um, this is fortran stuff.  why on earth is it trying to build fortran?!
> 
> -- 
> The Sex Pistols were revolutionaries.  The Bay City Rollers weren't.
> 


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From: alan@lxorguk.ukuu.org.uk (Alan Cox)
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Subject: Re: [hppa-linux] Picky details of TLB fault handlers
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> HP-UX does exactly this sort of thing for handling many traps and
> interrupts.  It is fairly expensive, though, since you have to have
> a stack on which to save the IPSW/IIAQ and probably a bunch of other
> registers, and it's too much messing around for a TLB miss.

I'm right in assuming its legal to swap the return address - so the TLB
handler can do a short piece of TLB handling for a present page miss,
then stash the return into the kernel stack and rfi into the page fault handler
so it will in turn return to the user context ?

Alan


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Subject: Re: [parisc-linux] oops, egcs didn't build all the way...
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> On Wed, 14 Jun 2000 willy@thepuffingroup.com wrote:
> 
> > On Wed, Jun 14, 2000 at 12:05:06AM -0500, T. Martin wrote:
> > > egcs failed to build, 
> > > RH 6.1
> > > ar: libE77/Labort.o: No such file or directory
> > > make[2]: *** [libg2c.a] Error 1
> > > make[2]: Leaving directory `/opt/puffin/egcs/i586-pc-linux-gnu/libf2c'
> > 
> > um, this is fortran stuff.  why on earth is it trying to build fortran?!

Do "make LANGUAGES=c" to only build C.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] Linux make dep scsi error
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I've been fairly successful with building the compile environment, except
for this error message I seem not to be able to get past.  Any ideas?

gmake[1]: Leaving directory `/disk2/puffin/linux-2.3/arch/parisc/hpux'
hppa1.1-linux-ld  -T /disk2/puffin/linux-2.3/arch/parisc/vmlinux.lds
arch/parisc/real/head.o  init/main.o init/version.o \
--start-group \
		arch/parisc/kernel/pdc_cons.o arch/parisc/kernel/process.o
arch/parisc/real/real.o /disk2/puffin/linux-2.3/arch/parisc/lib/lib.a
arch/parisc/mm/mm.o arch/parisc/kernel/kernel.o arch/parisc/hpux/hpux.o
kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o arch/parisc/kernel/init_task.o \
		drivers/block/block.a drivers/char/char.o drivers/net/net.o
drivers/scsi/scsi.a drivers/cdrom/cdrom.a drivers/video/video.o
drivers/gsc/gsc.a drivers/parport/parport.a \
	net/network.a \
	/disk2/puffin/linux-2.3/arch/parisc/lib/lib.a
/disk2/puffin/linux-2.3/lib/lib.a  \
	--end-group \
	-o vmlinux
	drivers/scsi/scsi.a: could not read symbols: Malformed archive
	gmake: *** [vmlinux] Error 1
jdangelo@spider> 

I am building with the gcc from puffin on a 712/80 (same as my target
platform).

Jay D'Angelo
jdangelo@techie.com <mailto:jdangelo@techie.com> 







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On Wed, 14 Jun 2000, D'Angelo, James wrote:

> I've been fairly successful with building the compile environment, except
> for this error message I seem not to be able to get past.  Any ideas?
>[snip]
> 	drivers/scsi/scsi.a: could not read symbols: Malformed archive

I'm a bit confused by your subject line.  "make dep" shouldn't be doing
any linking!  Assuming the subject is wrong...

What does "ls -l drivers/scsi/scsi.a" tell you?  Is it a zero length file
by any chance?  "hppa1.1-linux-objdump --headers drivers/scsi/scsi.a"
might show something useful too.

Also, try a "make distclean", then re-make if you haven't already tried
this.

-- 
Linuxcare.  Support for the Revolution.



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From: "D'Angelo, James" <James.D'Angelo@icn.siemens.com>
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Subject: [parisc-linux] Booting vmlinux.
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I've successfully done "make palo" and have followed the directions.  From a
712/80, I am doing a boot lan from the PDC.  My TFTP seems configured fine,
but the only thing I see in my syslog is:

Jun 15 19:28:49 boca08 bootpd[2595]: bootsize=2288612  hp->bootsize=2288612
Jun 15 19:29:15 boca08 tftpd[3765]: Transfer timed out

The 712/PDC just says: Selecting a system to boot.


Any ideas?

Jay D'Angelo
jdangelo@techie.com <mailto:jdangelo@techie.com> 


From - Thu Nov 08 21:12:44 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting vmlinux.
Date: Fri, 16 Jun 2000 19:45:27 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:7434

Hi James,
[cc'ed to parisc-linux]

- Please use the serial-console for now, because the keyboard-support is 
currently very limited with STI-console (=Graphics-console).

All following suggestions are meant for serial console:
------------------------------------------
- do you use ramdisk-20000530-sercon.tgz (gunziped in /linux-2.3) ?
- the best solution is to delete your /linux-2.3/.config-file and do a fresh 
"make menuconfig".
- do you have "block_devices/inital ramdisk support" enabled ?
- you need to have "character_devices/serial_support/console on serial port" 
enabled and "console_drivers/STI_Console" disabled.
- major/minor of /dev/console in your ramdisk or nfs-exported tree needs to 
be 5/1  (4/1 for STI-Console!)  [That's the only difference between 
ramdisk20000530-[sercon|sticon].tgz]
- take a look at the comments in palo/Makefile prior building the kernel with 
"make palo".
- which machine are you using ?

That's all for now :-)

Helge.

Am Fri, 16 Jun 2000 schrieben Sie:
> Yes, I figured that out.  Except some of the recipes and config
> documentation says to put vmlinux in the bootptab for tftp (which does
> appear to be wrong).  I'm getting the kernel to boot with networking, but
> am still having an issue getting a login either on a serial console or
> preferably the graphics console.
>
> Any ideas?
>
> Jay
>
>
>  -----Original Message-----
> From: 	Helge Deller [mailto:deller@gmx.de]
> Sent:	Thursday, June 15, 2000 9:41 PM
> To:	jdangelo@techie.com
> Subject:	Fwd: Re: [parisc-linux] Booting vmlinux.
>
>
>
> ----------  Weitergeleitete Nachricht  ----------
> Subject: Re: [parisc-linux] Booting vmlinux.
> Date: Fri, 16 Jun 2000 03:38:39 +0200
> From: Helge Deller <deller@gmx.de>
> To: "D'Angelo, James" <James.D'Angelo@icn.siemens.com>
>
>
> Hi James,
>
> Am Fri, 16 Jun 2000 schrieb D'Angelo, James:
> > I've successfully done "make palo" and have followed the directions. 
> > From a 712/80, I am doing a boot lan from the PDC.  My TFTP seems
> > configured fine, but the only thing I see in my syslog is:
> >
> > Jun 15 19:28:49 boca08 bootpd[2595]: bootsize=2288612
>
> hp->bootsize=2288612
>
> > Jun 15 19:29:15 boca08 tftpd[3765]: Transfer timed out
> >
> > The 712/PDC just says: Selecting a system to boot.
> > Any ideas?
>
> Maybe a stupid question, but you are trying to boot palo/lifimage and not
> the
> vmlinux-file (which is wrong!) ?
>
> Greetings,
> Helge.
>
> > Jay D'Angelo
> > jdangelo@techie.com <mailto:jdangelo@techie.com>
>
> -------------------------------------------------------


From - Thu Nov 08 21:12:44 2018
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From: "D'Angelo, James" <James.D'Angelo@icn.siemens.com>
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Subject: RE: [parisc-linux] Booting vmlinux.
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I'm using a 712/80.  I'll switch to the sercon.  What would the default
speed/parity be?  I did have some more success with sti, but I don't appear
to have a complete shell (ie -ls -mv) and I don't seem to have anyway to
mount or transfer files over.  I would think I would use palo again to make
the disk bootable so I don't have to use bootp.

Thanks a lot for your help.  I am new at this and appreciate all the
help/hints I get.

jdangelo@techie.com


 -----Original Message-----
From: 	Helge Deller [mailto:deller@gmx.de] 
Sent:	Friday, June 16, 2000 1:45 PM
To:	jdangelo@techie.com
Cc:	parisc-linux@thepuffingroup.com
Subject:	Re: [parisc-linux] Booting vmlinux.

Hi James,
[cc'ed to parisc-linux]

- Please use the serial-console for now, because the keyboard-support is 
currently very limited with STI-console (=Graphics-console).

All following suggestions are meant for serial console:
------------------------------------------
- do you use ramdisk-20000530-sercon.tgz (gunziped in /linux-2.3) ?
- the best solution is to delete your /linux-2.3/.config-file and do a fresh

"make menuconfig".
- do you have "block_devices/inital ramdisk support" enabled ?
- you need to have "character_devices/serial_support/console on serial port"

enabled and "console_drivers/STI_Console" disabled.
- major/minor of /dev/console in your ramdisk or nfs-exported tree needs to 
be 5/1  (4/1 for STI-Console!)  [That's the only difference between 
ramdisk20000530-[sercon|sticon].tgz]
- take a look at the comments in palo/Makefile prior building the kernel
with 
"make palo".
- which machine are you using ?

That's all for now :-)

Helge.

Am Fri, 16 Jun 2000 schrieben Sie:
> Yes, I figured that out.  Except some of the recipes and config
> documentation says to put vmlinux in the bootptab for tftp (which does
> appear to be wrong).  I'm getting the kernel to boot with networking, but
> am still having an issue getting a login either on a serial console or
> preferably the graphics console.
>
> Any ideas?
>
> Jay
>
>
>  -----Original Message-----
> From: 	Helge Deller [mailto:deller@gmx.de]
> Sent:	Thursday, June 15, 2000 9:41 PM
> To:	jdangelo@techie.com
> Subject:	Fwd: Re: [parisc-linux] Booting vmlinux.
>
>
>
> ----------  Weitergeleitete Nachricht  ----------
> Subject: Re: [parisc-linux] Booting vmlinux.
> Date: Fri, 16 Jun 2000 03:38:39 +0200
> From: Helge Deller <deller@gmx.de>
> To: "D'Angelo, James" <James.D'Angelo@icn.siemens.com>
>
>
> Hi James,
>
> Am Fri, 16 Jun 2000 schrieb D'Angelo, James:
> > I've successfully done "make palo" and have followed the directions. 
> > From a 712/80, I am doing a boot lan from the PDC.  My TFTP seems
> > configured fine, but the only thing I see in my syslog is:
> >
> > Jun 15 19:28:49 boca08 bootpd[2595]: bootsize=2288612
>
> hp->bootsize=2288612
>
> > Jun 15 19:29:15 boca08 tftpd[3765]: Transfer timed out
> >
> > The 712/PDC just says: Selecting a system to boot.
> > Any ideas?
>
> Maybe a stupid question, but you are trying to boot palo/lifimage and not
> the
> vmlinux-file (which is wrong!) ?
>
> Greetings,
> Helge.
>
> > Jay D'Angelo
> > jdangelo@techie.com <mailto:jdangelo@techie.com>
>
> -------------------------------------------------------


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Subject: Re: [parisc-linux] Booting vmlinux.
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Xref: news.gmane.org gmane.linux.ports.parisc:7436


"D'Angelo, James" writes...

> I'm using a 712/80.  I'll switch to the sercon.  What would the default
> speed/parity be?

Setting a 712 to use serial console is kind of tricky. See,

http://puffin.external.hp.com/mailing-lists/parisc-linux/1999/12-Dec/0091.html

for instructions(and be *careful*). In order to do it you need ISL. Do you 
have a disk with HP-UX on it that you could boot from? An HP-UX install CD 
should work too.

Contact me if you have any problems.

-- 
Matt Taggart
taggart@fc.hp.com



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The system currently has HPUX 10.20 on the harddrive.  I have over 200
others HPs here up and running.    I'll look at the document and see if I
can figure it out.

Thanks,

Jay


 -----Original Message-----
From: 	Matt Taggart [mailto:taggart@carmen.fc.hp.com] 
Sent:	Friday, June 16, 2000 2:49 PM
To:	D'Angelo, James
Cc:	jdangelo@techie.com; parisc-linux@thepuffingroup.com
Subject:	Re: [parisc-linux] Booting vmlinux. 


"D'Angelo, James" writes...

> I'm using a 712/80.  I'll switch to the sercon.  What would the default
> speed/parity be?

Setting a 712 to use serial console is kind of tricky. See,

http://puffin.external.hp.com/mailing-lists/parisc-linux/1999/12-Dec/0091.ht
ml

for instructions(and be *careful*). In order to do it you need ISL. Do you 
have a disk with HP-UX on it that you could boot from? An HP-UX install CD 
should work too.

Contact me if you have any problems.

-- 
Matt Taggart
taggart@fc.hp.com


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From: "Bas Valkema" <bvalkema@knowhowww.nl>
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Subject: [parisc-linux] EISA
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Is there any support for the EISA bus in the 715/50?


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<DIV><FONT face=3DArial size=3D2>Is there any support for the EISA bus =
in the=20
715/50?</FONT></DIV>
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From: Markus Grabert <max@grabert.net>
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Subject: [parisc-linux] EISA (2)
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Bas Valkema wrote:

> Is there any support for the EISA bus in the 715/50?

I wanted to ask the same question for the 730 !

is it possible to use e.g. WAVElan/ISA-Cards, SCSI-ISA-Cards and so on
(right now) ?


sersn max

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Bas Valkema wrote:
<blockquote TYPE=CITE><style></style>
<font face="Arial"><font size=-1>Is
there any support for the EISA bus in the 715/50?</font></font></blockquote>

<p><br>I wanted to ask the same question for the 730 !
<p>is it possible to use e.g. WAVElan/ISA-Cards, SCSI-ISA-Cards and so
on (right now) ?
<br>&nbsp;
<p>sersn max
</body>
</html>

--------------3EDD6F1BF588073D062A6AAD--


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From: Michael Shalayeff <mickey@lucifier.dial-up.user.akula.net>
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Subject: Re: [hppa-linux] Picky details of TLB fault handlers
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Making, drinking tea and reading an opus magnum from Alan Cox:
> > HP-UX does exactly this sort of thing for handling many traps and
> > interrupts.  It is fairly expensive, though, since you have to have
> > a stack on which to save the IPSW/IIAQ and probably a bunch of other
> > registers, and it's too much messing around for a TLB miss.
> 
> I'm right in assuming its legal to swap the return address - so the TLB
> handler can do a short piece of TLB handling for a present page miss,
> then stash the return into the kernel stack and rfi into the page fault handler
> so it will in turn return to the user context ?

i'd say that a miss handler would not _ever_ exceed 100 instructions total time
to successfully lookup and insert a missing translation into a tlb and
using just shadowed registers, so by doing that w/ all the interrupts
disabled (and keeping some data in direct-mapped segment) no need
to save even a single bit of context (since it's all in the shadows).
then the handler can save the whole context and call pagefault() routine to
process a complex page fault (ie one that has no translation
in the page table), since the whole context is saved it's safe to
receive any other page faults and/or interrupts.

this schema was first implemented in the lites (and mklinux later).
doing this way is like simulating the hardware TLB walker as present
on certain machines (712 at least, maybe any 7100lc, HP help!?)
there are certain constraints on page table organization, but
doing so would greatly speed up the tlb-walker equipped machines,
leaving the rest still in the best shape possible.
building a tlb-walker-ONLY kernel (as an option) may save about 10 other
instructions.

cu

-- 
    paranoic mickey       (my employers have changed but, the name has remained)


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From: Douglas Homero Hipocreme - SAO <Dhipocreme@sao.politec.com.br>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] linux on PARisc
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hi, 
id like to get a like to run on my HP9000 hardware, wjere can i get one
copy ??
regards

[ ]s

Douglas Hipocreme
Suporte Tcnico
dhipocreme@sao.politec.com.br


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From: Patric Karlstrom <PATRIC_KARLSTROM@HP-Sweden-om1.om.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ISDN Bri Link
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Hello,

Someone that knows if there will be a support for the ISDN Bri Link adapter? (ISDN adapter that is connected to the scsi chain.)


Some information of the ISDN bri adapter.

Product Main Features
     Communication over B channels (circuit switching mode) with line speeds from 56/64 Kbps up to 384 Kbps. 
     RFC1356 compliance (IP to X.25 encapsulation protocol). 
     RFC1661/1332 compliance (Point-to-Point protocol). 
     RFC1334/1321 compliance (PAP/CHAP and MD5 authentication); requires HP-UX10.20 or later. 
     Communication using X.25 packet switching over D channel.


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Get rid of %r8 linker stubs
Date: Thu, 22 Jun 2000 00:07:14 +1000 (EST)
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Hello all,
   The attached patch to puffin.external.hp.com CVS binutils-2.10
implements a new linker stub scheme for elf32-hppa.  (Well, it's new for
gnu - I believe the hp linker does something like this).

The new scheme works like this:  For any linker input section that needs a
stub to reach called routines, the linker creates a stub section located
immediately prior to the input section.  A call is simply redirected to
the stub, which consists of a long branch
  ldil LR'XXX,%r1
  be,n RR'XXX(%sr4,%r1)
to the destination.

The old scheme had a single stub section, and out-of-range calls changed
the call instruction from "b,l faraway,%r2" to "be,l stub(%sr4,%r8)".
This of course dedicates a register to point to the stubs, and has some
serious problems caused by changing the return pointer from the normal %r2
to the implicit %r31 used by "be,l".  Additionally, when we finally
implement elf32-hppa shared libraries, there are going to be a _lot_ more
stubs.  We may even exceed the maximum 256k of stubs, especially if we try
to combine .plt and .got with stubs to get a register back.

Anyway, I'd appreciate some brave souls testing out this patch.  A few
positive reports and I'll check the lot in to pehc.

Regards, Alan Modra
-- 
Linuxcare.  Support for the Revolution.




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From - Thu Nov 08 21:12:45 2018
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From: Darcy Buskermolen <darcy@ok-connect.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 735 and rboot
Date: Wed, 21 Jun 2000 16:53:23 -0700
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Has anybody gotten pa-linux to boot via rboot ?

My old 735/125's only give me the rboot option  for booting from the
network (which I have never before used). 

if someone has instructions for this that would be extreamly helpful
however, Any information would be useful


From - Thu Nov 08 21:12:45 2018
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From: Alexander Strauss <strauss@astracom.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 735 and rboot
Date: Thu, 22 Jun 2000 09:05:23 +0200
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To: Darcy Buskermolen <darcy@ok-connect.com>
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Darcy,

the 735's are not using RBOOT anymore - they're using the standard BOOTP
protocol. For more information, see the comments in any standard
/etc/bootptab template or the bootp manual pages. A sample entry should
look like this

<hostname>:\
        :hd=<tftp-directory>:\
        :bf=<bootfile>:\
        :ht=ether:\
        :ha=<mac-addr>:\
        :sm=<subnet-mask>:\
        :hn:\
        :ip=<ip-address>:\
        :vm=rfc1048:

If bootpd and tftpd are ready, you can try to boot your HP with a "boot
lan" command, also the BOOTP server should be visible when searching for
bootable devices...

Regards,
Alex


Darcy Buskermolen wrote:
> 
> Has anybody gotten pa-linux to boot via rboot ?
> 
> My old 735/125's only give me the rboot option  for booting from the
> network (which I have never before used).
> 
> if someone has instructions for this that would be extreamly helpful
> however, Any information would be useful
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
best regards,
Alexander Strauss <strauss@astracom.net>


From - Thu Nov 08 21:12:45 2018
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From: Darcy Buskermolen <darcy@ok-connect.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 735 and rboot
Date: Thu, 22 Jun 2000 08:27:40 -0700
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To: Alexander Strauss <strauss@astracom.net>
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My 735 uses rboot, I've confirmed this by using tcpdump and ethernet
protocol analysis tools, when I type boot lan.ether-adder.0.0 it is infact
doing a rboot and not tftp or bootp.





At 09:05 AM 6/22/00 +0200, you wrote:
>Darcy,
>
>the 735's are not using RBOOT anymore - they're using the standard BOOTP
>protocol. For more information, see the comments in any standard
>/etc/bootptab template or the bootp manual pages. A sample entry should
>look like this
>
><hostname>:\
>        :hd=<tftp-directory>:\
>        :bf=<bootfile>:\
>        :ht=ether:\
>        :ha=<mac-addr>:\
>        :sm=<subnet-mask>:\
>        :hn:\
>        :ip=<ip-address>:\
>        :vm=rfc1048:
>
>If bootpd and tftpd are ready, you can try to boot your HP with a "boot
>lan" command, also the BOOTP server should be visible when searching for
>bootable devices...
>
>Regards,
>Alex
>
>
>Darcy Buskermolen wrote:
>> 
>> Has anybody gotten pa-linux to boot via rboot ?
>> 
>> My old 735/125's only give me the rboot option  for booting from the
>> network (which I have never before used).
>> 
>> if someone has instructions for this that would be extreamly helpful
>> however, Any information would be useful
>> 
>> ---------------------------------------------------------------------------
>> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
>> `unsubscribe' as the subject.
>
>-- 
>best regards,
>Alexander Strauss <strauss@astracom.net>
>
>


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From: Tara Dear <tdear@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 735 and rboot
Date: Thu, 22 Jun 2000 12:22:29 -0700
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Some good instructions:

 http://www.oswg.org/oswg-nightly/oswg/en_US.ISO_8859-1/articles/parisc-linux/parisc-linux-boot.html



-TARA



Darcy Buskermolen wrote:

> Has anybody gotten pa-linux to boot via rboot ?
>
> My old 735/125's only give me the rboot option  for booting from the
> network (which I have never before used).
>
> if someone has instructions for this that would be extreamly helpful
> however, Any information would be useful
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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Oops, forgot to send this to the list.
---------------------- Forwarded by George G Davis/CCH/Celestica on 06/22/2000
12:00 PM ---------------------------


George G Davis
06/22/2000 11:57 AM

To:   Alexander Strauss <strauss@astracom.net>
cc:

Subject:  Re: [parisc-linux] 735 and rboot  (Document link: George G Davis)


The Model 735 does indeed still use rboot for booting via LAN and always will -
the rboot
protocol is embedded in the platform LAN IODC firmware. If you're using HP-UX
10.0 or
later as the LAN boot server, you can enable the rbootd server to handle boot
requests
from rboot clients. The HP-UX (10.0 or later) rbootd server converts the rboot
packets to
bootp and forwards them to the bootpd server.

I'm not aware of how to support rboot clients on non-HP-UX boot servers.

Regards,
George




Alexander Strauss <strauss@astracom.net> on 06/22/2000 03:05:23 AM

To:   Darcy Buskermolen <darcy@ok-connect.com>
cc:   parisc-linux@thepuffingroup.com (bcc: George G Davis/CCH/Celestica)

Subject:  Re: [parisc-linux] 735 and rboot



Darcy,

the 735's are not using RBOOT anymore - they're using the standard BOOTP
protocol. For more information, see the comments in any standard
/etc/bootptab template or the bootp manual pages. A sample entry should
look like this

<hostname>:\
        :hd=<tftp-directory>:\
        :bf=<bootfile>:\
        :ht=ether:\
        :ha=<mac-addr>:\
        :sm=<subnet-mask>:\
        :hn:\
        :ip=<ip-address>:\
        :vm=rfc1048:

If bootpd and tftpd are ready, you can try to boot your HP with a "boot
lan" command, also the BOOTP server should be visible when searching for
bootable devices...

Regards,
Alex


Darcy Buskermolen wrote:
>
> Has anybody gotten pa-linux to boot via rboot ?
>
> My old 735/125's only give me the rboot option  for booting from the
> network (which I have never before used).
>
> if someone has instructions for this that would be extreamly helpful
> however, Any information would be useful
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

--
best regards,
Alexander Strauss <strauss@astracom.net>

---------------------------------------------------------------------------
To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
`unsubscribe' as the subject.








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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Optimization problems
Date: Thu, 22 Jun 2000 12:20:02 -0600
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--==_Exmh_1275400460
Content-Type: text/plain; charset=us-ascii

I've run into a problem compiling code -O2 with string.h and linux/fs.h. I've 
attached a sample program that causes the failure. Change the header path to 
point to your own CVS and remember to compile with -O2.  willy/pb mentioned 
that it's because gcc is using it's own "optimized" versions. Is anyone 
looking at this?

-- 
Matt Taggart
taggart@fc.hp.com


--==_Exmh_1275400460
Content-Type: text/x-csrc ; name="fsproblem.c"; charset=us-ascii
Content-Description: fsproblem.c
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment; filename="fsproblem.c"

/* These CVS versions end up in $PREFIX/hppa1.1-linux/sys-include/ */
#include </home/taggart/puffin/palinux/glibc/string/string.h>
#include </home/taggart/puffin/palinux/linux-2.3/include/linux/fs.h>

int main(void)
{
	return 0;
}

--==_Exmh_1275400460--



From - Thu Nov 08 21:12:45 2018
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Subject: [parisc-linux] Another header conflict, in.h
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--==_Exmh_4128721000
Content-Type: text/plain; charset=us-ascii

I've hit another header conflict. This one is not optimization related. File 
attched.

"Doctor it hurts when I do this." "Then don't do that!"

Any ideas?

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com


--==_Exmh_4128721000
Content-Type: text/x-csrc ; name="inproblem.c"; charset=us-ascii
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/* These CVS versions end up in $PREFIX/hppa1.1-linux/sys-include/ */
#include </home/taggart/puffin/palinux/linux-2.3/include/linux/in.h>
#include </home/taggart/puffin/palinux/glibc/inet/netinet/in.h>

int main(void)
{
	return 0;
}

--==_Exmh_4128721000--



From - Thu Nov 08 21:12:45 2018
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From: Bill Katz <billk@sr.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [hppa-linux] Document Priority?
Date: Mon, 22 Mar 1999 10:56:37 -0800 (PST)
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Hello,
	I'm currently digging around, looking under rocks, and digging
up old documents that we eventually hope to clean up and release as
part of HPs support for this project.

	Does anyone have particular machines/chips/subassemblies that
they are desperate for documentation on?  I've been working on "LASI"
which is the I/O subsystem for the 712 (and pretty much all 7100LC, 
7300LC, 7200, 8000, 8200 based computers).  I'm currently digging for
I/O docs for the earlier machines like the 720/730 adn early 715s.

	I just got source code for the PA7100LC processor ERS that I need
to go through and make suitable for release to the world.  It for
example has details on the hardware TLB miss handler.  Would this
be a priority given today's discussion of TLBs?

	Perhaps the biggest challenge is resurrecting appropriate versions
of TROFF and TeX to process these things.

	What output format should I generate? PostScript? PDF? PCL?

	-Bill Katz


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From: Paul Bame <bame@fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
Date: Thu, 22 Jun 2000 14:33:09 -0600
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             <Pine.LNX.4.21.0006212254430.19417-101000@front.linuxcare.com.au> 
Xref: news.gmane.org gmane.linux.ports.parisc:7452

= 
= Hello all,
=    The attached patch to puffin.external.hp.com CVS binutils-2.10
= implements a new linker stub scheme for elf32-hppa.  (Well, it's new for
= gnu - I believe the hp linker does something like this).
= 
= The new scheme works like this:  For any linker input section that needs a
= stub to reach called routines, the linker creates a stub section located
= immediately prior to the input section.  A call is simply redirected to
= the stub, which consists of a long branch
=   ldil LR'XXX,%r1
=   be,n RR'XXX(%sr4,%r1)
= to the destination.
= 
= The old scheme had a single stub section, and out-of-range calls changed
= the call instruction from "b,l faraway,%r2" to "be,l stub(%sr4,%r8)".
= This of course dedicates a register to point to the stubs, and has some
= serious problems caused by changing the return pointer from the normal %r2
= to the implicit %r31 used by "be,l".  Additionally, when we finally
= implement elf32-hppa shared libraries, there are going to be a _lot_ more
= stubs.  We may even exceed the maximum 256k of stubs, especially if we try
= to combine .plt and .got with stubs to get a register back.
= 
= Anyway, I'd appreciate some brave souls testing out this patch.  A few
= positive reports and I'll check the lot in to pehc.

Well the good news is I can (with some trouble) link a native
binutils.  The bad news is that the kernel won't link.  To wit -

hppa1.1-linux-ld: fs/fs.o: cannot reach stub 080e89b4_00000000_printk
hppa1.1-linux-ld: fs/fs.o: cannot handle relocation R_PARISC_PCREL17F for printk at 0x3fc98 in .text

This follows a 'make clean'.  I only re-built the new binutils and not
gcc, if that matters.

	-P


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
Date: Thu, 22 Jun 2000 14:35:39 -0600
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To: Alan Modra <alan@linuxcare.com.au>, parisc-linux@thepuffingroup.com
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Xref: news.gmane.org gmane.linux.ports.parisc:7453

  > = Hello all,
  > =    The attached patch to puffin.external.hp.com CVS binutils-2.10
  > = implements a new linker stub scheme for elf32-hppa.  (Well, it's new for
  > = gnu - I believe the hp linker does something like this).
  > = 
  > = The new scheme works like this:  For any linker input section that needs 
  > a
  > = stub to reach called routines, the linker creates a stub section located
  > = immediately prior to the input section.  A call is simply redirected to
  > = the stub, which consists of a long branch
  > =   ldil LR'XXX,%r1
  > =   be,n RR'XXX(%sr4,%r1)
  > = to the destination.
An FYI -- this is precisely the kind of scheme that I've wanted to see
for the GNU PA tools.

I'd like to get this code integrated into the official binutils releases.

  > = to the implicit %r31 used by "be,l".  Additionally, when we finally
  > = implement elf32-hppa shared libraries, there are going to be a _lot_ more
  > = stubs.  We may even exceed the maximum 256k of stubs, especially if we tr
  > = to combine .plt and .got with stubs to get a register back.
Not only that, the old scheme was not relocatable since it assumed all the
stubs sat in the first 256k of the address space .

jeff


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From: Pavel Roskin <proski@gnu.org>
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Subject: [parisc-linux] Busybox 0.45 released
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Hello!

I think that some of you may be interested that Busybox 0.45 has been
released. This version fixes too many bugs to list here.

Busybox is small, easy to cross-compile. It provides essential utilities
such as init, mount, telnet (now working) and other.

I tried the busybox binary from the "gonzo" filesystem. There is a problem
with "init" when it's a symlink to busybox - it complains about
insufficient memory (today's kernel from CVS). This is almost certainly a
kernel problem.

I would like to see the binary of busybox on the ftp server. By the way,
it would be nice to update the precompiled kernel - the latest kernel on
ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/ is dated by
February 18, 2000.

Another side note - the list of modules on
http://www.thepuffingroup.com/parisc/cvs.html needs to be updated.

Regards,
Pavel Roskin


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Subject: Re: [parisc-linux] Busybox 0.45 released
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On Thu, 22 Jun 2000, Pavel Roskin wrote:

> it would be nice to update the precompiled kernel - the latest kernel on
> ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/ is dated by
> February 18, 2000.
> 
> Another side note - the list of modules on
> http://www.thepuffingroup.com/parisc/cvs.html needs to be updated.
> 

  It seems like everything on the site needs to be updated. The last weekly
  report, for example, was May 12.


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] Busybox 0.45 released
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Xref: news.gmane.org gmane.linux.ports.parisc:7456


Pavel Roskin writes...

> Hello!
> 
> I think that some of you may be interested that Busybox 0.45 has been
> released. This version fixes too many bugs to list here.

Yes! The list thanks you.

> I tried the busybox binary from the "gonzo" filesystem. There is a problem
> with "init" when it's a symlink to busybox - it complains about
> insufficient memory (today's kernel from CVS). This is almost certainly a
> kernel problem.

Yes, busybox has helped find several kernel/toolchain problems so far. For now 
I just use sash as my init.

> I would like to see the binary of busybox on the ftp server.

Earlier today I spent some time cleaning up the pehc:/pub/parisc/binaries 
directory. I put tarballs of all of the userspace apps(including busybox-0.43) 
that I've compiled in,

ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/

I will build a new busybox ASAP. I also put a tarball of the latest 
cross-toolchain for x86 in,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-latest.tgz

This toolchain is a couple weeks old but works pretty well. It will be updated 
within the next few days.

Consider this an announcement :) I'll try to put pointers on the website soon.

> By the way,
> it would be nice to update the precompiled kernel - the latest kernel on
> ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/ is dated by
> February 18, 2000.

Yes it would be nice. If someone else doesn't beat me to it I'll drop a new 
kernel in there tommorrow.

Thanks again,

-- 
Matt Taggart
taggart@fc.hp.com



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From: Pavel Roskin <proski@gnu.org>
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Subject: [parisc-linux] Where is umount syscall?
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Hello!

linux-2.3/include/asm-parisc/unistd.h doesn't define __NR_umount for some
reason. Other architectures define it.

Regards,
Pavel Roskin


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From: Pavel Roskin <proski@gnu.org>
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Subject: Re: [parisc-linux] Busybox 0.45 released
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Hello, Matt!

> > I would like to see the binary of busybox on the ftp server.
> 
> Earlier today I spent some time cleaning up the pehc:/pub/parisc/binaries 
> directory. I put tarballs of all of the userspace apps(including busybox-0.43) 
> that I've compiled in,
> 
> ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/

I've been there already. What really needs to be there is libc with all
headers. It is very hard to compile libc. Its makefiles do really crazy
things. It even tried to commit something to CVS.

The only reason I'm asking to compile something is because the libc from
"gonzo" is broken - the kernel crashes if I run anything linked with it.

> I will build a new busybox ASAP. I also put a tarball of the latest 
> cross-toolchain for x86 in,
> 
> ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-latest.tgz
> 
> This toolchain is a couple weeks old but works pretty well. It will be updated 
> within the next few days.
> 
> Consider this an announcement :) I'll try to put pointers on the website soon.

Not very useful for me. I'm using Linux/PPC :-)

> Yes it would be nice. If someone else doesn't beat me to it I'll drop a new 
> kernel in there tommorrow.

Thanks.

Pavel Roskin


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Subject: Re: [parisc-linux] Busybox 0.45 released
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Matt,

Just a postscriptum to save you some time.
When compiling Busybox disable

BB_INSMOD (not needed)
BB_FEATURE_MOUNT_LOOP (not compatible with linux-2.4.x)
BB_UMOUNT (uses umount syscall, can be fixed)

Everything else compiles and links. Have fun.

Pavel


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Forwarded as willy can't send email to the list right now.

MJT
------- Forwarded Message

Date: Thu, 22 Jun 2000 19:57:37 -0400
From: willy@thepuffingroup.com
To: Pavel Roskin <proski@gnu.org>
Cc: parisc-linux@thepuffingroup.com
Subject: Re: [parisc-linux] Where is umount syscall?
In-Reply-To: <Pine.LNX.4.21.0006222049530.16942-100000@sunapee.transcept.com>; 
from Pavel Roskin on Thu, Jun 22, 2000 at 08:54:08PM -0400

On Thu, Jun 22, 2000 at 08:54:08PM -0400, Pavel Roskin wrote:
> Hello!
> 
> linux-2.3/include/asm-parisc/unistd.h doesn't define __NR_umount for some
> reason. Other architectures define it.

we only have umount2 (the form which takes a flag to indicate whether to
force the umount or not).

- -- 
The Sex Pistols were revolutionaries.  The Bay City Rollers weren't.

------- End forwarded message -----



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Subject: New busybox available was Re: [parisc-linux] Busybox 0.45 released
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Xref: news.gmane.org gmane.linux.ports.parisc:7461


Pavel Roskin writes...

> Matt,
> 
> Just a postscriptum to save you some time.
> When compiling Busybox disable
> 
> BB_INSMOD (not needed)
> BB_FEATURE_MOUNT_LOOP (not compatible with linux-2.4.x)
> BB_UMOUNT (uses umount syscall, can be fixed)

I changed umount.c to use sys/umount.h instead of using it's own version.

I placed a tarball of busybox-0.45 in,

ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/busybox-20000622.tgz

I also created a smaller nfsroot using busybox instead of all the big 
versions. It contains the dev, base-files, sash, and busybox tarballs from the 
pehc:.../binaries/userspace directory. It lives at,

ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/nfsroot-small-latest.t
gz

Both were tested briefly. Please report any problems to the list.

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com



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Subject: Re: [hppa-linux] Document Priority?
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In-Reply-To: <199903221856.KAA04931@meow.sr.hp.com> from "Bill Katz" at Mar 22, 99 10:56:37 am
Xref: news.gmane.org gmane.linux.ports.parisc:7462

The TLB miss stuff would be a good early one, that and the basic I/O.
The normal approach ports have taken is to get the basic kernel core
up and then the network card. That lets you use an NFS root - and means you
don't turn your disk to sillyputty while debugging the vm bugs 

> 	What output format should I generate? PostScript? PDF? PCL?

I can still work nroff ;)


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
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Hi Paul,
   Thanks for testing this out for me.  Did you have any success stories
to report with the latest binutils patch?  eg. Does tar still run?

On Thu, 22 Jun 2000, Paul Bame wrote:

> Well the good news is I can (with some trouble) link a native
> binutils.  The bad news is that the kernel won't link.  To wit -
> 
> hppa1.1-linux-ld: fs/fs.o: cannot reach stub 080e89b4_00000000_printk
> hppa1.1-linux-ld: fs/fs.o: cannot handle relocation R_PARISC_PCREL17F for printk at 0x3fc98 in .text
> 
> This follows a 'make clean'.  I only re-built the new binutils and not
> gcc, if that matters.

No, gcc doesn't need to be rebuilt.  The problem here (I think - I'm going
to build a kernel in a the moment) is the silly use of "ld -r" in the
kernel build process.  This has the unfortunate effect of concatenating
all the .text sections, making some too large for a branch to reach its
stub section.  Of course this same thing can happen with very large object
files.

One fairly simple work-around is to use -ffunction-sections when compiling,
as then you need a truely enormous function (> 4*2**(17-1) bytes long)
before you'll get "cannot reach stub"  Also, gcc has support for handling
even these enormous functions.

Regards, Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] Busybox 0.45 released
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On Thu, 22 Jun 2000, Pavel Roskin wrote:

> I've been there already. What really needs to be there is libc with all
> headers. It is very hard to compile libc. Its makefiles do really crazy
> things. It even tried to commit something to CVS.

configure --without-cvs to stop the commit attempts.

-- 
Linuxcare.  Support for the Revolution.


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Xref: news.gmane.org gmane.linux.ports.parisc:7465

Hi Paul,
   I nearly forgot to follow up with the results of my kernel build.  It
was "ld -r" that caused the failure, and the following patch to the kernel
Makefile cures the build problem for me.  Not tested as I don't have any
hp hardware.

Regards, Alan
-- 
Linuxcare.  Support for the Revolution.

Index: Makefile
===================================================================
RCS file: /home/cvs/parisc/linux-2.3/Makefile,v
retrieving revision 1.17
diff -u -p -r1.17 Makefile
--- Makefile	2000/05/31 18:50:18	1.17
+++ Makefile	2000/06/23 10:11:16
@@ -95,6 +95,11 @@ AFLAGS := -D__ASSEMBLY__ $(CPPFLAGS)
 # use '-fno-strict-aliasing', but only if the compiler can take it
 CFLAGS += $(shell if $(CC) -fno-strict-aliasing -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-fno-strict-aliasing"; fi)
 
+# Same for -ffunction-sections
+# This is needed for the new binutils as otherwise "ld -r" results in .text
+# sections that are too big (> 0x40000) for branches to reach stubs.
+CFLAGS += $(shell if $(CC) -ffunction-sections -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-ffunction-sections"; fi)
+
 export	CPPFLAGS CFLAGS AFLAGS
 
 #


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Xref: news.gmane.org gmane.linux.ports.parisc:7466

From: 	Robin Redmile-Gordon [mailto:rrg@thermeoneurope.com]
Sent:	22 June 2000 15:57
To:	'mwheeler@startext.co.uk'
Subject:	Linux/Unix subcontracting
Sensitivity:	Confidential

Hi,
We are looking for specialists who are interested in specific project and
task work.
We are part of a small but global organisation providing IT solutions to the
vehicle rental industry.
We have our own specialists, of course, but we prefer to use them for our
own application development rather than the implementation, setup and
troubleshooting of client systems.
What we're looking for are people who genuinely know what they are doing and
can thus work fast, efficiently and independently - not the "we do
everything (we know a man who can) merchants".

Our environment has many SCO Unix systems in place but all new development
and many of the established customers are migrating to RedHat Linux.

Examples of work required:

1. A customer need his server configured as a mail server to collect
multiple mailboxes from a remote internet server by dial-up router and allow
local PC clients to collect and send mail via the server.
2. A customer has an NT server running an Exchange Server and wishes his SCO
and Linux servers to be able to route their mail to and through the Exchange
Server.
3. A customer needs a Linux firewall behind which reside multiple networks
of PC's and servers.  A design and implementation plan is needed and
configuration of firewall and routers.
4. We require routers to be ordered on demand and configured according to
our specification, despatched direct to the customer with simple
instructions for self-installation by a novice.
5. Customer's system is experiencing slow-running, network conflicts, etc
and trouble-shooting and resolution is required in a timely and
cost-effective manner.

In all cases we would require a time estimate which would be based on an
hourly rate for the service provided.
No on-site attendance would be required.
All systems have either dial-in or Internet access.

Is this the sort of thing your company might be interested in.
If so, please submit brief details of specialist personnel -
numbers/age/experience/specialisation together with the hourly rates you
would quote us for such sub-contract work.
Sorry to be a burden but, in addition, we will need references.
We are looking for people who will be let loose directly on our client's
systems and I am sure you will appreciate our caution in such matters.

I thank you for your kind attention and look forward to hearing from you.

Regards
Robin Redmile-Gordon
Managing Director
Thermeon Europe Ltd.


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] sym53c8xx.c now works with 53c875 on parisc
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Hi,
  I have fixed a couple of problems with parisc dynamic dma code so that
sym53c8xx.c now works on the 53c875 (on-board FWSCSI on my B180L).

The config options I used are:

CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
CONFIG_SCSI_NCR53C8XX_IOMAPPED=y

The main problem was that xxx_alloc_consistent() should return a
virtual address that is aligned to a power of 2 boundary equivalent
to the size requested.  We used get_vm_area() which doesn't worry about
alignment of returned areas.  I have got round this by introducing a
new get_aligned_vm_area() function in mm/vmalloc.c, but I guess that
is probably only temporary until we decide on the proper solution.
Other archs use get_free_pages and so avoid this problem.

Suggestions, anyone?

Richard


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Hi,
  I've just tried PA/Linux for the first time on a mouldy 712/100 lying
in the back of our server room.

  I'm cross building from a Linux/x86 box (RH 6.1) and followed most of
the recipe.

  I'm net booting it and the kernel loads, detects all the devices and
then stops after:

Found i82596 @0xf0107000, IRQ 535
early initialization of device eth0 is deferred
SBA at 0xfed00000

Any ideas?

Dave

/------------------------------------------------------------------\
| Dr. David Alan Gilbert | Work:dg@px.uk.com +44-161-286-2000 Ex258|
| -------- G7FHJ --------|---------------------------------------- |
| Home: dave@treblig.org            http://www.treblig.org         |
\------------------------------------------------------------------/


From - Thu Nov 08 21:12:47 2018
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From: "Brian S. Julin" <bri@mojo.calyx.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Recipe
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A couple questions about the recipe and the status of the 
cvs sources/snapshots -- for i386, my guess is you actually
don't want to specify --host=hppa-hpux, right?  It looks like
someone just cut and pasted the directions for compiling on hpux
without modifiying them at all.  

Secondly, either files are missing from the binutils cvs tree that
prevent libtool/automake from constructing bfd.h and a libbfd.la,
or I'm missing tools or one of my tools is a lower version than
needed.

I've been trying to get myself off the ground for a while now,
off and on (Ran out of disk on my HPUX box, which was 9.x anyway
so it was a pain, then found out cross-compile from ALPHA just wasn't
going to happen no matter how much I tried to fix binutils, and now I
finally have an i386 in here and I can't cross-compile there either.)  
I want to work on some of the input and video code, but I pretty much
can't make any contributions unless I can get the kernel to compile, 
a precompiled kernel doesn't have any development value.  (Although 
it would be nice to try a newer precompiled kernel just for the fun of
actually getting a working sash, so whoever was going to post one, please 
do.)

I think if you guys want more people participating in the project,
it's pretty important to make sure that the web pages are kept up
to date and the recipe works.  Including a list of last known
compiling/working snapshots and minimum versions of all tools required
would be a big plus.

--
Brian S. Julin



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On Tue, 27 Jun 2000, Alan Modra wrote:
> Agreed.  The list of modules is a bit out-of-date too.  You should be
> checking out the binutils-2.10 module, not binutils.

Hmmm... now I'll have to go back over to the ALPHA and see if things
suddenly work there....

> #make gcc
> mkdir pagcc
> cd pagcc
> /usr/src/parisc/gcc/configure --target=hppa1.1-linux --prefix=/usr/parisc \
>   --host=i586-linux --disable-nls --with-includes=/usr/parisc/include
> make

This needs to be "make LIBGCC2_INCLUDES=-I/usr/parisc/include" (on my
system at least, which is a Debian slink based Corel Linux 1.1 with slink
updates.)  The --with-includes didn't seem to do much, though
maybe I just didn't notice.  

The --{disable|without}-nls seems not to be necessary on (most?) Linux
systems.

Anyway, I now have my very own lifimage, thanks.  Here's knocking on
wood...

--
Brian


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Subject: [parisc-linux] What? no /bin/uname? :-)
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A big and sincere thanks to everyone who's ever answered a question
of mine on this list -- I've finally and at long last got the sash
prompt!!

--
Brian S. Julin



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On Wed, 28 Jun 2000, Brian S. Julin wrote:

> > /usr/src/parisc/gcc/configure --target=hppa1.1-linux --prefix=/usr/parisc \
> >   --host=i586-linux --disable-nls --with-includes=/usr/parisc/include
> > make
> 
> This needs to be "make LIBGCC2_INCLUDES=-I/usr/parisc/include" (on my
> system at least, which is a Debian slink based Corel Linux 1.1 with slink
> updates.)  The --with-includes didn't seem to do much, though
> maybe I just didn't notice.  

You're right.  I forgot.

> The --{disable|without}-nls seems not to be necessary on (most?) Linux
> systems.

--disable-nls turns off support for error/warning messages in languages
other than English.  If English is not your native language, you will want
--enable-nls.  (And turning the option on for native-English speakers
doesn't hurt.  It just adds a little code bloat)

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Bjorn Helgaas <helgaas@rsn.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] Picky details of TLB fault handlers
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>I'm right in assuming its legal to swap the return address - so the TLB
>handler can do a short piece of TLB handling for a present page miss,
>then stash the return into the kernel stack and rfi into the page fault handler
>so it will in turn return to the user context ?

Yes.


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From: chester@linux.org.tw
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Subject: [parisc-linux] userland test failure
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Hello ,
I have build the basic environment ,gcc, bintuils and glibc.
I download it from CVS ,and it builds very smooth.
(Thanks for your hack)
But when i compile a test program on it,i got some error:

-------(hello.c)
int main(void)
{
	printf("hello world");
	return 1;
}
--------
When i use hppa1.1-linux-gcc -g -o hello hello.c,it's fine.
(file hello ==> 
hello :ELF 32-bit MSB executable,PA-RISC, version 1,statically linked ,not
stripped)

But if i add -fPIC options,get

/tmp/cc4QxRpc.o : In function 'main'
/mnt/download/PA/hello.c:3: undefined reference to `$global$`
defaulting out
collect2: ld returned 1 exit status


BTW,i using this configure to configur my glibc,
./configure --preifix=/mnt/download/PA/pa-cross --disable-nls
--disable-sanity-checks --disable-shared --host=hppa1.1-linux
--target=hppa1.1-linux --build=i386-linux
--with-headers=/mnt/download/PA=pa-cross --without-nls --disable-profile

Is --disable-shared effect???



Thanks,
						Chester


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From: Alan Modra <alan@linuxcare.com.au>
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On Thu, 29 Jun 2000 chester@linux.org.tw wrote:

> But if i add -fPIC options,get
> 
> /tmp/cc4QxRpc.o : In function 'main'
> /mnt/download/PA/hello.c:3: undefined reference to `$global$`

-fPIC and -shared are not supported at the moment, even with the newer
binutils-2.10 module available from puffin CVS.  With binutils-2.10,
you'll get a different error if you compile with -fPIC, something like:
"cannot handle relocation R_PARISC_DLTIND21L for .LC0 at 0x28 in .text"

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Thanks,
Could you give me a hint to fix that(Maybe from source code),


				Chester


On Thu, 29 Jun 2000, Alan Modra wrote:

> On Thu, 29 Jun 2000 chester@linux.org.tw wrote:
> 
> > But if i add -fPIC options,get
> > 
> > /tmp/cc4QxRpc.o : In function 'main'
> > /mnt/download/PA/hello.c:3: undefined reference to `$global$`
> 
> -fPIC and -shared are not supported at the moment, even with the newer
> binutils-2.10 module available from puffin CVS.  With binutils-2.10,
> you'll get a different error if you compile with -fPIC, something like:
> "cannot handle relocation R_PARISC_DLTIND21L for .LC0 at 0x28 in .text"
> 
> Alan Modra
> -- 
> Linuxcare.  Support for the Revolution.
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


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To: chester@linux.org.tw
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I should describe my situation more clear!!
I have a pa-risc box that didn't have MMU in it.i need this compile option
-fPIC to test some program.
(My pa-risc box is 1.1 architecture without MMU and 902xx CPU)

Thanks,

On Thu, 29 Jun 2000 chester@linux.org.tw wrote:

> Thanks,
> Could you give me a hint to fix that(Maybe from source code),
> 
> 
> 				Chester
> 
> 
> On Thu, 29 Jun 2000, Alan Modra wrote:
> 
> > On Thu, 29 Jun 2000 chester@linux.org.tw wrote:
> > 
> > > But if i add -fPIC options,get
> > > 
> > > /tmp/cc4QxRpc.o : In function 'main'
> > > /mnt/download/PA/hello.c:3: undefined reference to `$global$`
> > 
> > -fPIC and -shared are not supported at the moment, even with the newer
> > binutils-2.10 module available from puffin CVS.  With binutils-2.10,
> > you'll get a different error if you compile with -fPIC, something like:
> > "cannot handle relocation R_PARISC_DLTIND21L for .LC0 at 0x28 in .text"
> > 
> > Alan Modra
> > -- 
> > Linuxcare.  Support for the Revolution.
> > 
> > ---------------------------------------------------------------------------
> > To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> > `unsubscribe' as the subject.
> > 
> 


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On Thu, 29 Jun 2000 chester@linux.org.tw wrote:

> Could you give me a hint to fix that(Maybe from source code),

It needs more than just a hint and a tweak or two!  Support for -fPIC will
roughly double the amount of code in bfd/elf32-hppa.c  You will be much
better off compiling without -fPIC for the time being.  Expect a binutils
with -fPIC support in the next few weeks.

> On Thu, 29 Jun 2000, Alan Modra wrote:
> > -fPIC and -shared are not supported at the moment, even with the newer
> > binutils-2.10 module available from puffin CVS.  With binutils-2.10,

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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Alan Modra <alan@linuxcare.com.au> writes:

> -fPIC and -shared are not supported at the moment, even with the newer
> binutils-2.10 module available from puffin CVS.  With binutils-2.10,
> you'll get a different error if you compile with -fPIC, something like:
> "cannot handle relocation R_PARISC_DLTIND21L for .LC0 at 0x28 in .text"

Would I be correct in assuming that the GCC portion of supporting
-fPIC is more or less done, it's just that the linker can't handle the
relocations generated?

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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David Huggins-Daines <dhd@linuxcare.com> writes:

> Would I be correct in assuming that the GCC portion of supporting
> -fPIC is more or less done, it's just that the linker can't handle the
> relocations generated?

Oh, right, that's a DLT relative reloc.  I see what the problem is now :-)

-- 
David Huggins-Daines - dhd@debian.org


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Subject: [parisc-linux] Looking for documentation
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Hi,

I'm looking for any documentation you may have for the HP 715/100 (i.e. 
Owners Guide, Tech Reference, etc).  Also, I can't get anything to come up 
for the HP Workstation HCL's you have posted on your Documentation page and 
I can't find them when I ftp to puffin.external.hp.com either.  Can you 
help?  Thanks.

TC
________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com


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On 29 Jun 2000, David Huggins-Daines wrote:

> Would I be correct in assuming that the GCC portion of supporting
> -fPIC is more or less done, it's just that the linker can't handle the
> relocations generated?

Yup.

-- 
Linuxcare.  Support for the Revolution.


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] e2fsprogs available
Date: Fri, 30 Jun 2000 13:41:48 -0600
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X-Mailer: exmh version 2.1.1 10/15/1999 (debian)
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This is a multipart MIME message.

--==_Exmh_-6386702340
Content-Type: text/plain; charset=us-ascii

A cross-compiled e2fsprogs is now available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/e2fsprogs-20000630.t
gz

This is the 1.19-WIP-0527a version of e2fsprogs from sourceforge. Attached is 
the build recipe.

I also placed a pseudoroot tarball of Paul Bame's fdisk is at,

ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/fdisk-20000630.tgz

I updated the /dev tarball(in the same directory) to add the scsi device 
families.  I have placed a version of the nfsroot tarball that includes all of 
these updates at,

ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/nfsroot-latest.tar.gz

Using the above I was able to natively partition, mke2fs, mount, create files, 
execute files, umount, and fsck using the scsi disk in my 712.

Please give it a try.

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com


--==_Exmh_-6386702340
Content-Type: text/plain ; name="e2fs.recipe"; charset=us-ascii
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Content-Disposition: attachment; filename="e2fs.recipe"


export CROSSPREFIX=hppa1.1-linux-
export CC=${CROSSPREFIX}gcc
export GCC=${CROSSPREFIX}gcc
export LD=${CROSSPREFIX}gcc
export AS=${CROSSPREFIX}as
export AR=${CROSSPREFIX}ar
export RANLIB=${CROSSPREFIX}ranlib
export STRIP=${CROSSPREFIX}strip
export IMAKECPP=${CROSSPREFIX}cpp
./configure --build=i386-linux \
		--host=hppa1.1-linux \
		--with-cc=hppa1.1-linux-gcc \
		--with-linker=hppa1.1-linux-ld \
		--disable-dynamic-e2fsck

make
make install DESTDIR=/home/taggart/puffin/userspace/e2fsprogs/tmp

--==_Exmh_-6386702340--



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>
> 	Does anyone have particular machines/chips/subassemblies that
> they are desperate for documentation on?  I've been working on "LASI"
> which is the I/O subsystem for the 712 (and pretty much all 7100LC, 
> 7300LC, 7200, 8000, 8200 based computers).  I'm currently digging for
> I/O docs for the earlier machines like the 720/730 adn early 715s.
>

  Not sure about everyone else, but I'd be intersted in these to get C
  class machines up and running. Its likely that these at least overlap
  the other systems:

   1. Onyx ERS (PCXU).
   2. CORE I/O on Raven or similar systems. Not sure if this is the same
      as LASI on 712.
   3. Graphics subsystems. For my machine in particular, builtin 
      Visualize-EG (goat).
   4. Any bug reports that MUST be worked around by the OS. In particular,
      I believe the S-chip had problems that could not be ignored by the OS.


   I'm sure I'll think of more.

> 	What output format should I generate? PostScript? PDF? PCL?
>

  1st PDF or 2nd PS.
  Forget PCL.

  Jason.


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] New defconfig/nfsroot/ramdisk/lifimage available
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Xref: news.gmane.org gmane.linux.ports.parisc:7485

A couple updates...

- I updated the default parisc kernel config to have SCSI disk/tape/cdrom, and 
the LASI/SYM53C8XX drivers turned on(and normal I/O for SYM).

- I created a new small root tarball, available at,
ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/nfsroot-small-latest.t
ar.gz
I added fdisk, mke2fs, fsck.ext2, and the scsi stuff in /dev

- I created a new ramdisk(4MB) using the above tarball, available at,
ftp://puffin.external.hp.com/pub/parisc/binaries/ramdisks/ramdisk.bin-latest

- I built a new lifimage using the new kernel config, today's kernel cvs bits, 
and the above ramdisk. It's available at,
ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/Image-latest

Using this lifimage you should be able to boot your system and 
partition/mke2fs/mount/use your scsi disks. Please give it a try and report 
successes/failures to the list.

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com




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Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
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Xref: news.gmane.org gmane.linux.ports.parisc:7486

On Fri, Jun 23, 2000 at 08:34:43PM +1000, Alan Modra wrote:
> Hi Paul,
>    I nearly forgot to follow up with the results of my kernel build.  It
> was "ld -r" that caused the failure, and the following patch to the kernel
> Makefile cures the build problem for me.  Not tested as I don't have any
> hp hardware.

Applying that patch to the kernel makefile and the r8-patch to the current
CVS binutils-2.10 yields a working kernel.  Thanks, Alan.

-- 
The Sex Pistols were revolutionaries.  The Bay City Rollers weren't.


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Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
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Xref: news.gmane.org gmane.linux.ports.parisc:7487

On Fri, Jun 23, 2000 at 11:45:16AM +1000, Alan Modra wrote:
> No, gcc doesn't need to be rebuilt.  The problem here (I think - I'm going
> to build a kernel in a the moment) is the silly use of "ld -r" in the
> kernel build process.  This has the unfortunate effect of concatenating
> all the .text sections, making some too large for a branch to reach its
> stub section.  Of course this same thing can happen with very large object
> files.
> 
> One fairly simple work-around is to use -ffunction-sections when compiling,
> as then you need a truely enormous function (> 4*2**(17-1) bytes long)
> before you'll get "cannot reach stub"  Also, gcc has support for handling
> even these enormous functions.

how about 
  --split-by-reloc COUNT      Split output sections every COUNT relocs
would that help?

-- 
The Sex Pistols were revolutionaries.  The Bay City Rollers weren't.


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From: bame@riverrock.org
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Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
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Unfortunately it looks like a couple of us are unable to build
working user-space executables with the no-%r8 linker.  I tried re-linking
with the old (16-June) one and that works (but of course that linker
can't link large executables).  So starting with:

	main(){}

I used both the 16-June and today's binutils.  It appears the "broken"
executable is running or sleeping (unlikely?) and it doesn't panic
the system.  I disassembled both versions and the _init sections are
a bit different, which isn't surprising, but also doesn't look right
to me.  Here's the one which works, using the old %r8 stub method:

000010b4 <_init>:
    10b4:       6b c2 3f d9     stw rp,-14(sr0,sp)
    10b8:       37 de 00 80     ldo 40(sp),sp
    10bc:       6b d3 3f c1     stw r19,-20(sr0,sp)
    10c0:       6b c4 3f 81     stw r4,-40(sr0,sp)
    /* jsr through stub to __gmon_start */
    10c4:       e5 00 22 f4     be,l 1178(sr4,r8),%sr0,%r31
    10c8:       08 13 02 44     copy r19,r4
    /* jsr through stub to __do_global_ctors_aux */
    10cc:       e5 00 22 bc     be,l 115c(sr4,r8),%sr0,%r31
    10d0:       08 00 02 40     nop
    10d4:       4b c2 3f 59     ldw -54(sr0,sp),rp
    10d8:       e8 40 c0 00     bv r0(rp)
    10dc:       4f c4 3f 81     ldw,mb -40(sr0,sp),r4

And here's the new one which fails.  Looks like maybe the %rp is
not being set, or the linker's overwriting a branch in a funny
way or something:

000010bc <_init>:
    10bc:       6b c2 3f d9     stw rp,-14(sr0,sp)
    10c0:       37 de 00 80     ldo 40(sp),sp
    10c4:       6b d3 3f c1     stw r19,-20(sr0,sp)
    10c8:       6b c4 3f 81     stw r4,-40(sr0,sp)
    /* jsr through local stub to __gmon_start */
    10cc:       e8 5f 1f c5     b,l 10b4 <_init-0x8>,rp
    10d0:       08 13 02 44     copy r19,r4
    /* branch to __do_global_ctors_aux !!! rp was never set !!! */
    10d4:       20 2b 40 00     ldil 56000,r1
    10d8:       e0 20 26 ba     be,n 35c(sr4,r1)
    /* nullified instruction -- otherwise it'd be an infinite loop */
    10dc:       e8 5f 1f e5     b,l 10d4 <_init+0x18>,rp
    10e0:       08 00 02 40     nop
    10e4:       4b c2 3f 59     ldw -54(sr0,sp),rp
    10e8:       e8 40 c0 00     bv r0(rp)
    10ec:       4f c4 3f 81     ldw,mb -40(sr0,sp),r4

Help?

	-Paul Bame


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
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On Tue, 4 Jul 2000 bame@riverrock.org wrote:

> And here's the new one which fails.  Looks like maybe the %rp is
> not being set, or the linker's overwriting a branch in a funny
> way or something:
> 
> 000010bc <_init>:
>     10bc:       6b c2 3f d9     stw rp,-14(sr0,sp)
>     10c0:       37 de 00 80     ldo 40(sp),sp
>     10c4:       6b d3 3f c1     stw r19,-20(sr0,sp)
>     10c8:       6b c4 3f 81     stw r4,-40(sr0,sp)
>     /* jsr through local stub to __gmon_start */
>     10cc:       e8 5f 1f c5     b,l 10b4 <_init-0x8>,rp
>     10d0:       08 13 02 44     copy r19,r4

The following is actually a long branch stub
>     /* branch to __do_global_ctors_aux !!! rp was never set !!! */
>     10d4:       20 2b 40 00     ldil 56000,r1
>     10d8:       e0 20 26 ba     be,n 35c(sr4,r1)

Here's where rp is set.
>     /* nullified instruction -- otherwise it'd be an infinite loop */
>     10dc:       e8 5f 1f e5     b,l 10d4 <_init+0x18>,rp
>     10e0:       08 00 02 40     nop
>     10e4:       4b c2 3f 59     ldw -54(sr0,sp),rp
>     10e8:       e8 40 c0 00     bv r0(rp)
>     10ec:       4f c4 3f 81     ldw,mb -40(sr0,sp),r4

The trouble is that _init is a single function that's been split in two
(see glibc/csu/Makefile crti,crtn), thus the linker thinks it's quite OK
to insert a stub at the start of the second section.  I'll have to do
something special with the .init section to work around this problem.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
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On Tue, 4 Jul 2000 willy@thepuffingroup.com wrote:

> On Fri, Jun 23, 2000 at 11:45:16AM +1000, Alan Modra wrote:
> > One fairly simple work-around is to use -ffunction-sections when compiling,
> > as then you need a truely enormous function (> 4*2**(17-1) bytes long)
> > before you'll get "cannot reach stub"  Also, gcc has support for handling
> > even these enormous functions.
> 
> how about 
>   --split-by-reloc COUNT      Split output sections every COUNT relocs
> would that help?

No.  It would lead to the same problem as seen with the .init section.

-- 
Linuxcare.  Support for the Revolution.


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From: Ulrich Drepper <drepper@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
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To: Alan Modra <alan@linuxcare.com.au>
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Alan Modra <alan@linuxcare.com.au> writes:

> The trouble is that _init is a single function that's been split in two
> (see glibc/csu/Makefile crti,crtn), thus the linker thinks it's quite OK
> to insert a stub at the start of the second section.  I'll have to do
> something special with the .init section to work around this problem.

Simply create an appropriate initfini.c file for HP/UX.  Look in the
current glibc sources and you'll see that we already do this for SH.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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From: bame@riverrock.org
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Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
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= Alan Modra <alan@linuxcare.com.au> writes:
= 
= > The trouble is that _init is a single function that's been split in two
= > (see glibc/csu/Makefile crti,crtn), thus the linker thinks it's quite OK
= > to insert a stub at the start of the second section.  I'll have to do
= > something special with the .init section to work around this problem.
= 
= Simply create an appropriate initfini.c file for HP/UX.  Look in the
= current glibc sources and you'll see that we already do this for SH.

I don't think that'll work, because the parisc linker thinks it's allowed
to insert stubs in between separately-loaded things like functions.  The
use of .init from multiple .o files looks to the linker just like the
use of .text from multiple .o files.  I'd say there's a good chance the
linker might insert stubs *between* individual .init entries too (not
to mention .fini, and in general users can probably create arbitrary
segments to act similarly).

So unless we get to change how .init works (ugly hacks to gas perhaps?
I hope not) I think a special case in the linker is required.  I just
hope there's some sort of attribute on these magic kludge segments which
the linker can use rather than hard-coding the names or something.

Hopefully someone else has a better idea.

	-Paul Bame


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
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On 4 Jul 2000, Ulrich Drepper wrote:

> Alan Modra <alan@linuxcare.com.au> writes:
> 
> > The trouble is that _init is a single function that's been split in two
> > (see glibc/csu/Makefile crti,crtn), thus the linker thinks it's quite OK
> > to insert a stub at the start of the second section.  I'll have to do
> > something special with the .init section to work around this problem.
> 
> Simply create an appropriate initfini.c file for HP/UX.  Look in the
> current glibc sources and you'll see that we already do this for SH.

Thanks for the hint.  It's probably a good idea.  Meanwhile, I've already
fixed the linker :)

Regards, Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
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On Tue, 4 Jul 2000 bame@riverrock.org wrote:

> So unless we get to change how .init works (ugly hacks to gas perhaps?
> I hope not) I think a special case in the linker is required.  I just
> hope there's some sort of attribute on these magic kludge segments which
> the linker can use rather than hard-coding the names or something.

The linker patch I just checked in to puffin cvs is of the "magic
kludge" variety.  ie. Input sections named .init* and .fini* are handled
specially.  A more general approach would be to group stubs by output
section, at least for output sections that are small enough to be sure
that the stubs can be reached.  The extra work to do this isn't that
difficult - but it's a bit more than my quick fix.

Regards, Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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>
> |   4. Any bug reports that MUST be worked around by the OS. In particular,
> |      I believe the S-chip had problems that could not be ignored by the OS.
>
> I'm working on PCXL and other CPU docs.  I'll try to find someone that
> remebers the PCXS chip.
>

   I personally don't care much about S, but apparently the 720 and perhaps one
   or two other models used it. I know some of the people who tested the
   bootstrap code were running on 720's. We do want to cover a large portion
   of the spectrum of 700's and 800's....

>
> I'll try.  Assuming I can make PS from TROFF and TeX.
>

  For TeX it's trivial, there is at least one well known .dvi to .ps
  converter. Use your favorite search engine to find "dvips". Then perform
  "dvips -f < xyzzy.dvi > xyzzy.ps".

  As for TROFF, I believe GROFF can emit PostScript.

  Jason.


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Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
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Success!!!

I just natively compiled and ran hello-world on a 712!!!  
I had to add milli.o by hand but that's not a difficult thing to fix.

	-P


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From: Patric Karlstrom <PATRIC_KARLSTROM@HP-Sweden-om1.om.hp.com>
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Subject: Re: [parisc-linux] Get rid of %r8 linker stubs
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Hello,

Just wanted to check if there exists a bootfloppy? I have a 715 without a harddrive and i want to be able to boot and then mount my rootfilesystem with nfs.

Regards
Patric Karlstrom


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On Wed, Jul 05, 2000 at 08:43:25AM +0200, Patric Karlstrom wrote:
> 
> Hello,
> 
> Just wanted to check if there exists a bootfloppy? I have a 715 without
> a harddrive and i want to be able to boot and then mount my rootfilesystem
> with nfs.

that already works fine.  edit the palo makefile to specify your NFS server
and you're away.

-- 
The Sex Pistols were revolutionaries.  The Bay City Rollers weren't.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Another step towards userland: dpkg
Date: 05 Jul 2000 13:18:42 -0400
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I've gotten dpkg CVS to compile, sort of (it needs some coaxing since
we have static NSS):

# uname -a
Linux 10.160.240.101 2.3.99-pre8 #12 Wed Jul 5 11:31:23 EDT 2000 parisc unknown
# dpkg --version
Debian GNU/Linux `dpkg' package management program version 1.7.0 (parisc).
This is free software; see the GNU General Public Licence version 2 or
later for copying conditions.  There is NO warranty.
See dpkg --licence for copyright and license details.

Once I figure out dpkg-cross I'll see if I can build some actual
packages, starting from the stuff Matt Taggart has already set up.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] untested but building 64-bit toolchain, issues/questions
Date: 05 Jul 2000 18:25:35 -0400
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Hi,

I've checked in some bits to get binutils-2.10 to build for 64-bit
Linux/ELF targets.  I have not even attempted to test it yet, but it
doesn't seem to break my 32-bit stuff.  Wherever possible I tried to
reuse the existing 64-bit HP/UX stuff, however I had to do some kludgy
things to work around problems in the way the configuration is set up.

I am using 'hppa2.0w-*-linux-gnu*' as the target architecture string,
so to build a cross-binutils for this target, use the following
configure command:

../binutils-2.10/configure --enable-64-bit-bfd --target=hppa2.0w-linux

I've only tested this in Linux/i386 for the time being.

A couple of questions:

1) What is the proper GNU architecture string for 64-bit Linux on
   PA-RISC?  On #parisc we sort of decided on using
   'hppa1.1-*-linux-*' for 32-bit Linux and 'hppa2.0w-*-linux-*' for
   64-bit Linux.  However the existing configuration files use some
   other strange pattern like 'hppa*64*-*-*' to configure for 64-bit
   PA-RISC.  Seeing as hppa2.0w is 64-bit by definition I don't think
   this makes much sense.

2) A corollary to this problem is that the choice of a 32- or 64-bit
   target in gas is determined at configure time rather than at
   runtime.  Every other architecture allows you to specify the
   architecture revision, code model, and word size on the assembler
   command line (it's the compiler that gets configured differently),
   and it would be nice if we could too.  Can anyone think of a reason
   why we cannot do this?

3) Finally, we use the 'linux' emulation for the assembler instead of
   the 'hppa' or 'hppa64' ones.  I had to kludge in a separate
   'linuxhppa64' target in order to get TARGET_WORD_SIZE defined
   properly.  Can anyone think of a better way to do this?  I think
   that merging the 32 and 64-bit code as noted above would be the
   Right Thing to do.

Cheers.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] untested but building 64-bit toolchain, 
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To: David Huggins-Daines <dhd@linuxcare.com>
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  In message <87u2e4kye8.fsf@linuxcare.com>you write:
  > 1) What is the proper GNU architecture string for 64-bit Linux on
  >    PA-RISC?  On #parisc we sort of decided on using
  >    'hppa1.1-*-linux-*' for 32-bit Linux and 'hppa2.0w-*-linux-*' for
  >    64-bit Linux.  However the existing configuration files use some
  >    other strange pattern like 'hppa*64*-*-*' to configure for 64-bit
  >    PA-RISC.  Seeing as hppa2.0w is 64-bit by definition I don't think
  >    this makes much sense.
64bit is hppa64-*-*.

We do _not_ want to ever default the tools to 64bit due to the significant
code generation penalties that involves.

Thus we can not key 64bit generation on the strings returned by config.guess.

This was discussed on the gcc, gdb, binutils, and autoconf development 
lists.


  > 2) A corollary to this problem is that the choice of a 32- or 64-bit
  >    target in gas is determined at configure time rather than at
  >    runtime.  Every other architecture allows you to specify the
  >    architecture revision, code model, and word size on the assembler
  >    command line (it's the compiler that gets configured differently),
  >    and it would be nice if we could too.  Can anyone think of a reason
  >    why we cannot do this?
I'm not aware of a technical reason why this will not work in the assembler;
there are *major* problems trying to make this work with the compiler.  Feel
free to try and merge them.

jeff



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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] untested but building 64-bit toolchain,  issues/questions
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Jeffrey A Law <law@cygnus.com> writes:

> 64bit is hppa64-*-*.
> 
> We do _not_ want to ever default the tools to 64bit due to the significant
> code generation penalties that involves.
> 
> Thus we can not key 64bit generation on the strings returned by config.guess.

Yes, but I thought that 'hppa2.0w' means 64 bit by definition, so it
strikes me that the problem is with config.guess returning this.

> This was discussed on the gcc, gdb, binutils, and autoconf development 
> lists.

Can you provide a subject: line to search on or a URL?  I can't find
any definitive statements on the semantics of config.guess nor the
proper configuration for 64-bit PA-RISC in the archives.

> I'm not aware of a technical reason why this will not work in the assembler;
> there are *major* problems trying to make this work with the compiler.  Feel

Yes, I'm aware of that :) I was hoping to follow the Sparc model where
the compiler is configured to pass the appropriate flags to the
assembler.

> free to try and merge them.

It turns out this isn't a big priority at the moment since we'd prefer
not to break the existing HP/UX support, but if it turns out to be
easy I might.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Subject: Re: [parisc-linux] untested but building 64-bit toolchain,  issues/questions
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David Huggins-Daines <dhd@linuxcare.com> writes:

> Jeffrey A Law <law@cygnus.com> writes:
> 
> > 64bit is hppa64-*-*.
> > 
> > We do _not_ want to ever default the tools to 64bit due to the significant
> > code generation penalties that involves.
> > 
> > Thus we can not key 64bit generation on the strings returned by config.guess.
> 
> Yes, but I thought that 'hppa2.0w' means 64 bit by definition, so it
> strikes me that the problem is with config.guess returning this.

Oh, and one more thing.  GCC thinks that hppa2.0w is a 64-bit target.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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In message <873dlnl3f9.fsf@linuxcare.com>you write:
  > > Yes, but I thought that 'hppa2.0w' means 64 bit by definition, so it
  > > strikes me that the problem is with config.guess returning this.
  > 
  > Oh, and one more thing.  GCC thinks that hppa2.0w is a 64-bit target.
Err, no.  Go look at the official GCC, GDB, binutils repositories.

hppa2.0w is not considered a 64bit target by any of the tools.

jeff



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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] untested but building 64-bit toolchain, 
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  In message <87puorl517.fsf@linuxcare.com>you write:
  > Yes, but I thought that 'hppa2.0w' means 64 bit by definition, so it
  > strikes me that the problem is with config.guess returning this.
Yes/No.  It would have been more convenient in some ways if it didn't do
that -- however it has also been argued that not returning the "w" loses
information.  ie, when the "w" is included we have a system that is 
capable of running 64bit binaries -- not all hppa2.0 systems can run
64bit binaries.

  > > This was discussed on the gcc, gdb, binutils, and autoconf development 
  > > lists.
  > 
  > Can you provide a subject: line to search on or a URL? 
I don't remember offhand.

  > I can't find
  > any definitive statements on the semantics of config.guess nor the
  > proper configuration for 64-bit PA-RISC in the archives.
They're there :-)  

  > > I'm not aware of a technical reason why this will not work in the assembl
  > er;
  > > there are *major* problems trying to make this work with the compiler.  F
  > eel
  > 
  > Yes, I'm aware of that :) I was hoping to follow the Sparc model where
  > the compiler is configured to pass the appropriate flags to the
  > assembler.
The biggest problems you're going to run into are radically different ABIs
in the 32bit and 64bit worlds -- things like arguments growing in different
directions.

jeff



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This is a long one. So bear with me.

In the process of trying to know more about PA-RISC, I ended up
doing a following comparative analysis between PA and 80386:

Take a 80386 -

Make segment registers 32 bits wide and instead of defining
how much memory is covered by each segment using Global descriptor
table etc, make each segments of same size that is  32 bits. 

Take out the special meaning assigned to segment registers by hardware
i.e no CS, DS, ES etc etc. Call these new segment registers "spaces"
each capable of addressing 4 Gig of memory. 

So now we have this 2 dimensional virtual address space, %sr.%offset.

Instead of going through a pdir->page_table->page combination as done
in x86, just use a TLB black box:


	%sr.%offset-------->[TLB black-box]---------->a physical page in 
		                       a flat physical address space.

One of the issues while porting Linux to 80386 would be how to implement
this TLB black-box.

I expect folks to correct me if I have faltered or  made any wrong assumptions
so far.


On a x86 Linux box, at any given time following is happening.

Kernel space is defined by 2 segments in GDT, one each for code and data.
User space is defined by 2 segments in GDT, one each for code and data.
There might be others ( Like stack, though i believe u can use data segment).

When a process makes a syscall going through an interrupt gate:

One of things that we do is to save every thing ( HW state), change
CS and DS to those of kernel space, giving a 32 bit virtual address and
depend on  pdir->page_table->page mumbo jumbo to start executing and fetching
instruction in kernel.


My understanding of PA equivalent:

	Since there is no special meaning (except %sr0 which i think is
	used for branch and link space) to any space registers, Juse use
	by convention a particular space register and a value in this space
	register to define Kernel space. 

	There is no segment level protection here ?
	All protection is through protection identifiers and other fields
	in tlb entry data structures. One of the important field here is
	privilege level of the page defined by a particular tlb entry.

	A process makes a syscall by executing a gate instruction on a 
	privileged page, that braches to a syscall entry point in kernel
	and also increases your privilege level.

	To move from real mode to Virtual mode:

	Set things up ( i.e. create pdir and map everything correctly)
	Hope you are executing on a page thats equivalently mapped.
	Turn on I and D bits in PSW and you are in protected mode.

	
	One other question is whats happening to space registers when
	you are running in real mode ?

I hope, this "magnum opus" is enough for today :-)

-pkd


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Subject: Re: [parisc-linux] untested but building 64-bit toolchain,  issues/questions
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Jeffrey A Law <law@cygnus.com> writes:

> In message <873dlnl3f9.fsf@linuxcare.com>you write:
>   > > Yes, but I thought that 'hppa2.0w' means 64 bit by definition, so it
>   > > strikes me that the problem is with config.guess returning this.
>   > 
>   > Oh, and one more thing.  GCC thinks that hppa2.0w is a 64-bit target.
> Err, no.  Go look at the official GCC, GDB, binutils repositories.
> 
> hppa2.0w is not considered a 64bit target by any of the tools.

Urgh.  Understood.  This means that the gcc tree on
puffin.external.hp.com CVS is quite out of date, which is sort of what
I expected.  I'm looking at the possibility of merging it now.

On the subject of architecture strings:

I know Matthew Wilcox has been pushing for using 'parisc-*-linux-gnu'
and 'parisc64-*-linux-gnu' as the arch strings for 32 and 64 bit
targets, and standardising on a 'linux' dialect of assembly language
for both (basically 2.0 mnemonics).  What would the chances of this
being accepted by the binutils/gcc/autoconf maintainers be?  (should I
be asking this on another list? sorry...)

We need to standardise on these things ASAP, since we are starting to
build userspace, and we will be stuck with them very soon.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Subject: Re: [parisc-linux] untested but building 64-bit toolchain, 
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  In message <874s63p218.fsf@linuxcare.com>you write:
  > Urgh.  Understood.  This means that the gcc tree on
  > puffin.external.hp.com CVS is quite out of date, which is sort of what
  > I expected.  I'm looking at the possibility of merging it now.
Certainly possible.  Especially if you get a tree from the releases Cygnus
made to HP.  Lots has changed since then.

  > I know Matthew Wilcox has been pushing for using 'parisc-*-linux-gnu'
  > and 'parisc64-*-linux-gnu' as the arch strings for 32 and 64 bit
  > targets, and standardising on a 'linux' dialect of assembly language
  > for both (basically 2.0 mnemonics).  What would the chances of this
  > being accepted by the binutils/gcc/autoconf maintainers be?  (should I
  > be asking this on another list? sorry...)
  > 
  > We need to standardise on these things ASAP, since we are starting to
  > build userspace, and we will be stuck with them very soon.
I would strongly recommend hppax.y[w] and hppa64 since the GNU tools already
know about those names.  Otherwise you're going to spend a lot of time
unnecessarily hacking up configure scripts.

I believe there's a list (config@gnu.org)?  Where this kind of stuff is
usually discussed.
jeff


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Subject: Re: [parisc-linux] untested but building 64-bit toolchain, issues/questions
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Jeffrey A Law wrote:
> ie, when the "w" is included we have a system that is 
> capable of running 64bit binaries -- not all hppa2.0 systems can run
> 64bit binaries.

My brain isn't working that well today...I had the think about this for
a minute...let me make it obvious to others.

The limiting factor would be the OS.
Eg hppa2.0n-linux (or HPUX 10.20) on a system with PA2.0 CPU.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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  In message <200007061901.MAA10121@milano.cup.hp.com>you write:
  > Jeffrey A Law wrote:
  > > ie, when the "w" is included we have a system that is 
  > > capable of running 64bit binaries -- not all hppa2.0 systems can run
  > > 64bit binaries.
  > 
  > My brain isn't working that well today...I had the think about this for
  > a minute...let me make it obvious to others.
  > 
  > The limiting factor would be the OS.
  > Eg hppa2.0n-linux (or HPUX 10.20) on a system with PA2.0 CPU.
Yup.  There are even versions of hpux11 that are not 64bit capable even
on PA2.0 hardware.  For example, unpatched hpux11.00 wouldn't run 64bit
code on a D/R 390.

jeff


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Ding dong, reserved %r8 is dead
Date: 06 Jul 2000 18:03:40 -0400
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As of this afternoon, the GCC in puffin.external.hp.com CVS no longer
reserves %r8.  You will need to get binutils-2.10 or your builds will
be broken.  I've built a successful kernel+palo lifimage with this
GCC, but haven't tested glibc or userspace yet due to reasons
mentioned below, and the fact that I have been also working on merging
our GCC forward to the mainline CVS version (the *real* 2.96 :-)

One other thing - USE_CONST_SECTION is no longer defined to 0, so GCC
will put strings and such in a .rodata section.  I'm not sure why we
were avoiding this in the past - was it a SOM-ism?

I guess there's no good reason not to have read-only data in the text
section, aside from the fact that it makes reading objdump output a
bit confusing, so we can change it back if there is a pressing reason.

Oh, and for a few hours, glibc builds were slightly broken because GCC
was not building crt{begin,end}.o, for reasons that are beyond me.
I've manually added them in GCC's configure.in, and it should build
again.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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  In message <87em56or0j.fsf@linuxcare.com>you write:
  > One other thing - USE_CONST_SECTION is no longer defined to 0, so GCC
  > will put strings and such in a .rodata section.  I'm not sure why we
  > were avoiding this in the past - was it a SOM-ism?
?!?  No idea why that was done in your tree, it's certainly not like that
in the official GCC sources.

  > I guess there's no good reason not to have read-only data in the text
  > section, aside from the fact that it makes reading objdump output a
  > bit confusing, so we can change it back if there is a pressing reason.
It can be problematical for PIC code sometimes.

jeff


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Subject: [parisc-linux] userspace
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Check out ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/
for a bunch of user-space applications including a native compile tool
chain.  The more recent of these tarballs aren't in Matt's NFS roots
so you'll have to add them yourself.

I just fixed a problem in our implementation of the brk() syscall in
glibc, but most of the userspace apps are built with the broken brk()
which amazingly doesn't seem to bother them much.

In misc-utils.tgz are a bunch of handy things like ifconfig, make, and
ash which are placed in /usr/local/bin because some of them were built
using nasty hackery.  If you 'ln /usr/local/bin/ash /bin/sh' quite
a lot of interesting things start to happen in user space.  I've seen
most of a configure script work (core dumps in gcc stopped it) for
example.

OH, and the current cross compiler can be had by unpacking
ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20000705.tgz
followed by
ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-patch-20000706.tgz
to pick up the libc.a with brk() fixed.
This tool chain is prior to any of the brokenness dhd mentioned.

	-Paul Bame


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Another possible linker problem
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[cc to list in case others have the same problem.]

On Thu, 6 Jul 2000, Paul Bame wrote:

> I tried to x-compile ncurses-5.0 and the executables (tic, clear, tput,
> and so forth) will not link.  They seem to be created from a couple of
> large .o files, produced from 'ld -r' I think.  Here're the messages:
> 
> hppa1.1-linux-gcc ../objects/tic.o ../objects/dump_entry.o -L../lib -L/usr/lib -lncurses      -o tic
> /home/bame/xc/lib/gcc-lib/hppa1.1-linux/2.96.0614/../../../../hppa1.1-linux/bin/ld: can not size stub section: Bad value

I reckon this error is probably fixed by the patch I checked in last
night.  elf32_hppa_size_stubs had this code in it

		      if (hash->root.type == bfd_link_hash_undefined
			  || hash->root.type == bfd_link_hash_undefweak)
			continue;

		      while (hash->root.type == bfd_link_hash_indirect
			     || hash->root.type == bfd_link_hash_warning)
			hash = (struct elf_link_hash_entry *)
			  hash->root.u.i.link;

and the problem is that we may have an indirect symbol (results from
symbol versioning) pointing to an undefined symbol.  The simple fix is to
traverse the indirect links before checking for undefined syms.

Regards, Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Another possible linker problem
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  In message <Pine.LNX.4.21.0007070848540.12175-100000@front.linuxcare.com.au>y
ou write:
  > [cc to list in case others have the same problem.]
  > I reckon this error is probably fixed by the patch I checked in last
  > night.  elf32_hppa_size_stubs had this code in it
  > 
  > 		      if (hash->root.type == bfd_link_hash_undefined
  > 			  || hash->root.type == bfd_link_hash_undefweak)
  > 			continue;
  > 
  > 		      while (hash->root.type == bfd_link_hash_indirect
  > 			     || hash->root.type == bfd_link_hash_warning)
  > 			hash = (struct elf_link_hash_entry *)
  > 			  hash->root.u.i.link;
  > 
  > and the problem is that we may have an indirect symbol (results from
  > symbol versioning) pointing to an undefined symbol.  The simple fix is to
  > traverse the indirect links before checking for undefined syms.
Yea, I don't think I ever implemented indirects in the PA tools.  I suspect
there's other PA code that doesn't handle them correctly.

I'm glad to see someone making the right things happen with that old crusty
code.


jeff


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From: Paul Bame <bame@fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] CD for LWE
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Hey Matt and I are planning a bootable/mountable CD-ROM (for at least
712 and A/B-180) to pass out at LinuxWorldExpo in August.  I've attached
a list of stuff which we want on it and want to know what other ideas
folks might have.

Issues:
    1) We're about to change system calls in a way which will require
       re-linking every current userspace program.  ARE THERE ANY OTHER
       KERNEL CHANGES which will require re-linking the whole world?

    2) Our "drop dead" date for the CD master is almost exactly a month away.
       Matt and I have vacations within this month but I think there
       is plenty of time to do something useful and fun.

    3) Our tool chain is in transition.  Matt and I won't have time to
	track late-breaking tool chain changes because there is still a
	bunch of hand work in cross-compiling userspacs apps (native
	compiling doesn't work often -- gcc segfaults).

    4) Lots of annoying things are broken -- how do we track and fix them?
	* gcc segfaults a lot under palinux.  For example the bison
	    configure script causes two gcc (cc1) segfaults.
	* /dev/tty doesn't work
	* when user-space processes fault, the kernel halts
	* you can't kill processes
	* login segfaults (unaligned memory access), which makes
	    telnetd and getty problematic
	* make sometimes segfaults (this might get fixed by rebuilding
	    with a newer glibc)
	* Intermittent panic in tulip_rx on B180 which probably requires
	    a busy LAN to reproduce

Ideas for the CD so far:

    Be directly bootable, with a working mounted root FS,
    on 712, and A/B-180 (others may work)
	Status: I have built and tested bootable/mountable CDs, but the
		required PALO changes are not all commited yet nor is
		the documentation complete.  We have somewhat interesting
		user space now.

    A binary copy of the x86-based cross compiler for Debian potato.
	Status: we're building this regularly.

    Copies of all the CVS trees from pehc which a developer would need,
    and possibly a script to fix up the CVS/Root files.

    Instructions for making a bootable hard disk from the CD (mkfs, fdisk,
    copy a bunch of stuff, run palo, reboot).
	Status: somebody need to write this

    If someone has too much time on their hands, a binary copy of the cross
    compiler hosted on HP-UX
	Status: unknown

    Copies of the PA-RISC documentation from pehc


	-Paul Bame


From - Thu Nov 08 21:12:51 2018
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From: Christopher Neufeld <neufeld@physics.utoronto.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [hppa-linux] GCC and static branch prediction
Date: Tue, 23 Mar 1999 11:12:33 -0500 (EST)
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   Hi,

   A few of us were discussing recently a way to take advantage of static
branch prediction in the PA-RISC architecture. The problem is that there
is no ANSI C construct for specifying whether a branch is likely taken,
or likely not taken.
   I wonder, though, if we can't maybe throw something together which
would work "well enough".

   What I'm thinking of is getting a couple of assembly NOPs (ones which
are not usually output by gcc / gas), and making macros for them to
inline the assembly into a C function.


[ ... do some stuff ... ]
if (error) {
	PARISC_BRANCH_LIKELY_TAKEN; /* i.e. usually don't enter the if() */
	[ ... do some more stuff ... ]
}
[ ... do some more stuff ... ]


or,


while (locked(ptr)) {
	do_other_things();

}
PARISC_BRANCH_LIKELY_TAKEN;  /* i.e. usually repeat the loop */


Now, if we can make an insn pattern which matches the noop to the branch
which came just before it, we can get the optimizer to produce the
correct static branch prediction on the preceding operation (and also,
while it's optimizing, delete the NOP). For other architectures, the
macros are defined away, and the macros need only be used in places where
we really need the extra boost (preferably only in the arch/parisc
directories, imagine Linus' face if we started dropping these macros all
over the kernel!).

   As I see it, there are a few things to worry about. Unrolling loops;
if(){}else{} clauses where the optimizer changes the sense of the test
for reasons known to itself, resulting in pessimized static branch
settings; correct interpretation of nested, optimized branches; any glue
code which is stuck on at the beginning and end of asm() statements which
may not be discarded even when the asm() consists solely of a NOP;
probably many others.


   Any thoughts?


-- 
 Christopher Neufeld                   neufeld@physics.utoronto.ca
 Home page:  http://caliban.physics.utoronto.ca/neufeld/Intro.html
 "Don't edit reality for the sake of simplicity"


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] GCC 2.96 merge (Linux/ELF, 32-bit for the time being)
Date: 07 Jul 2000 19:45:39 -0400
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Hi,

I've merged the relevant bits from the puffin.external.hp.com CVS tree
with the current GCC 2.96 from sourceware.cygnus.com.

I've tested this by building the kernel with it (it prints a number of
warnings but is otherwise okay), building glibc with it, building ash
with that glibc, and running that ash binary.

Here is the diff against a checkout of current sourceware CVS.  I
don't expect this to be merged with mainline GCC as it is still pretty
messy, but I wanted to put the patch out for discussion.  (That's
partly why there is no ChangeLog entry with it, as a lot of this stuff
may change again in the near future when I add Linux/ELF64 support).

There are also two small generic updates in this patch, which
constitute the entirety of the changes to gcc/config/pa/pa.[ch].  The
first one (in pa.c) is from prumpf, it corrects a condition code
specifier, and the second one (in pa.h) is from me, to silence a
warning when processing the pa.md file.  These are at the top of the
patch.

I've had to do a lot of "conflict resolution" between the HP/SOM style
of assembly language dictated by the other PA-RISC configuration files
and headers in GCC and the semi-GNU/ELF style accepted by our current
binutils and dictated by the generic Linux configuration files and
headers.

The issues in particular are:

1) How global labels are declared.

2) Whether labels use colons.

3) The format of local labels.

I believe the comments in the patch below explain these issues so I
won't rehash them here.

This also is a statement of my intention to branch off the current
puffin.external.hp.com tree.  The branch tag for the old stuff is
'gcc-2_9-hppa-20000707'.  I'll add a new vendor tag for the vanilla
sourceware tree and put the modified version at the head either
tonight or tomorrow morning.

diff --exclude=CVS --exclude=configure -urN gcc-sourceware/gcc/config/pa/pa.c gcc-puffin/gcc/config/pa/pa.c
--- gcc-sourceware/gcc/config/pa/pa.c	Fri Jul  7 19:13:26 2000
+++ gcc-puffin/gcc/config/pa/pa.c	Thu Jul  6 17:12:36 2000
@@ -3944,7 +3944,7 @@
       switch (GET_CODE (x))
 	{
 	case EQ:
-	  fputs ("!=", file);  break;
+	  fputs ("<>", file);  break; /* this was "!=" which is bogus.  prumpf */
 	case NE:
 	  fputs ("=", file);  break;
 	case GT:
diff --exclude=CVS --exclude=configure -urN gcc-sourceware/gcc/config/pa/pa.h gcc-puffin/gcc/config/pa/pa.h
--- gcc-sourceware/gcc/config/pa/pa.h	Fri Jul  7 19:14:41 2000
+++ gcc-puffin/gcc/config/pa/pa.h	Fri Jul  7 12:08:47 2000
@@ -2044,4 +2044,5 @@
   {"basereg_operand", {REG}},						\
   {"div_operand", {REG, CONST_INT}},					\
   {"ireg_operand", {REG}},						\
-  {"movb_comparison_operator", {EQ, NE, LT, GE}},
+  {"movb_comparison_operator", {EQ, NE, LT, GE}},			\
+  {"cmpib_comparison_operator", {EQ, NE, GT, GE, GTU, LT, LE, LEU}},
diff --exclude=CVS --exclude=configure -urN gcc-sourceware/gcc/config/pa/pa-linux.h gcc-puffin/gcc/config/pa/pa-linux.h
--- gcc-sourceware/gcc/config/pa/pa-linux.h	Fri Jul  7 19:12:24 2000
+++ gcc-puffin/gcc/config/pa/pa-linux.h	Fri Jul  7 18:30:44 2000
@@ -18,9 +18,28 @@
 the Free Software Foundation, 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
-/* FIXME - this doesn't seem to be used anywhere */
+/* FIXME: This doesn't seem to be used anywhere. */
 #define LINUX_DEFAULT_ELF
 
+/* FIXME: elfos.h doesn't #undef this.  We may want to remove the
+   other stuff from the tm_file definition in configure.in and just
+   include them manually here like i386 does. */
+#undef SELECT_SECTION
+
+#include <linux.h>
+
+/* sibcalls, stubs, and elf sections don't play well */
+#undef FUNCTION_OK_FOR_SIBCALL
+#define FUNCTION_OK_FOR_SIBCALL(x) 0
+
+#define TEXT_SECTION_ASM_OP "\t.text"
+#define DATA_SECTION_ASM_OP "\t.data"
+#define BSS_SECTION_ASM_OP "\t.section\t.bss"
+
+#undef SKIP_ASM_OP
+#define SKIP_ASM_OP ".blockz"
+
+/* FIXME: obviously this is just not going to work for hppa64-linux. */
 #undef SIZE_TYPE
 #define SIZE_TYPE "unsigned int"
 
@@ -30,13 +49,41 @@
 #undef CPP_PREDEFINES
 #define CPP_PREDEFINES "-D__ELF__ -Dunix -D__hppa__ -Dlinux -Asystem(unix) -Asystem(posix) -Acpu(hppa) -Amachine(hppa) -Amachine(bigendian)"
 
+/* On the other hand, neither is this. */
 #undef CPP_SPEC
-#define CPP_SPEC "%{posix:-D_POSIX_SOURCE}\
- %{msnake:-D_PA_RISC1_1}\
- %{mpa-risc-1-1:-D_PA_RISC1_1}"
+#define CPP_SPEC "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{mhppa:-D__hppa__} %{posix:-D_POSIX_SOURCE} -D__hp9000s700 -D_PA_RISC1_1"
 
 #undef	LIB_SPEC
-#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} -lmilli"
+#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
+
+#undef ASM_SPEC
+#define ASM_SPEC \
+  "%{v:-V} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
+
+/* Define the strings used for the special svr4 .type and .size directives.
+   These strings generally do not vary from one system running svr4 to
+   another, but if a given system (e.g. m88k running svr) needs to use
+   different pseudo-op names for these, they may be overridden in the
+   file which includes this one.  */
+
+#define TYPE_ASM_OP	".type"
+#define SIZE_ASM_OP	".size"
+#define SET_ASM_OP	".set"
+
+#undef STRING_ASM_OP
+#define STRING_ASM_OP   ".stringz"
+
+/* Output a definition */
+#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2)				\
+do									\
+{									\
+    fprintf ((FILE), "\t%s\t", SET_ASM_OP);				\
+    assemble_name (FILE, LABEL1);					\
+    fprintf (FILE, ",");						\
+    assemble_name (FILE, LABEL2);					\
+    fprintf (FILE, "\n");						\
+    }									\
+while (0)
 
 /* How to renumber registers for dbx and gdb.
 
@@ -53,3 +100,65 @@
 #define DBX_REGISTER_NUMBER(REGNO) \
   ((REGNO) <= 31 ? (REGNO) :						\
    ((REGNO) > 31 && (REGNO) <= 87 ? (REGNO) + 40 : 32))
+
+/* Redefine these to generate the Linux/ELF/SysV style of internal
+   labels all the time - i.e. to be compatible with
+   ASM_GENERATE_INTERNAL_LABEL in <elfos.h>.  Compare these with the
+   ones in pa.h and note the lack of dollar signs in these.  FIXME:
+   shouldn't we fix pa.h to use ASM_GENERATE_INTERNAL_LABEL instead? */
+
+#undef ASM_OUTPUT_ADDR_VEC_ELT
+#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE)  \
+  if (TARGET_BIG_SWITCH)                                        \
+    fprintf (FILE, "\tstw %%r1,-16(%%r30)\n\tldil LR'.L%d,%%r1\n\tbe RR'.L%d(%%sr4,%%r1)\n\tldw -16(%%r30),%%r1\n", VALUE, VALUE);               \
+  else                                                          \
+    fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
+
+
+#undef ASM_OUTPUT_ADDR_DIFF_ELT
+#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL)  \
+  if (TARGET_BIG_SWITCH)                                        \
+    fprintf (FILE, "\tstw %%r1,-16(%%r30)\n\tldw T'.L%d(%%r19),%%r1\n\tbv %%r0(%%r1)\n\tldw -16(%%r30),%%r1\n", VALUE);                            \
+  else                                                          \
+    fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
+
+/* FIXME: The Linux/parisc gas does not enjoy labels without colons.
+   We haven't really decided on all the details of our assembly
+   dialect, and the ELF and Linux configuration we 'mix in' here does
+   generate colons, so for the time being we'll just go with the flow.
+   - dhd@linuxcare.com, 2000-07-06 */
+
+/* This is how to output the definition of a user-level label named NAME,
+   such as the label on a static function or variable NAME.  */
+
+#undef ASM_OUTPUT_LABEL
+#define ASM_OUTPUT_LABEL(FILE, NAME)	\
+  do { assemble_name (FILE, NAME); 	\
+       fputs (":\n", FILE); } while (0)
+
+/* NOTE: ASM_OUTPUT_INTERNAL_LABEL() is defined for us by elfos.h, and
+   does what we want (i.e. uses colons).  It must be compatible with
+   ASM_GENERATE_INTERNAL_LABEL(), so do not define it here. */
+
+/* FIXME: Yes, our dialect of assembly language gets more specific by
+   the minute.  <pa/pa.h> makes ASM_GLOBALIZE_LABEL a no-op for
+   functions, because the SOM code globalizes functions as part of
+   ASM_DECLARE_FUNCTION_NAME.  However, this breaks anything that uses
+   symbol references, glibc for instance.  Because .globl works just
+   fine in our assembler, we will use the default
+   ASM_DECLARE_FUNCTION_NAME from <elfos.h>, which uses
+   ASM_GLOBALIZE_NAME, which needs to be defined here.
+
+   This is another 'mix-in' problem, of course.
+
+   Previously in the puffin tree we had hacked <pa/pa.h> to use .globl
+   and to globalize all labels.  This may be the Right Thing to do,
+   but I don't know if it will break the SOM stuff (which arguably
+   should be overriding it anyway).  Expect the way this is handled to
+   change in the future.  For now I just want glibc to work again.
+
+   - dhd@linuxcare.com, 2000-07-07 */
+
+#undef ASM_GLOBALIZE_LABEL
+#define ASM_GLOBALIZE_LABEL(FILE, NAME)					\
+	(fputs (".globl ", FILE), assemble_name (FILE, NAME), fputs ("\n", FILE))
diff --exclude=CVS --exclude=configure -urN gcc-sourceware/gcc/config/pa/t-linux gcc-puffin/gcc/config/pa/t-linux
--- gcc-sourceware/gcc/config/pa/t-linux	Fri Jul  7 19:14:50 2000
+++ gcc-puffin/gcc/config/pa/t-linux	Thu Jul  6 17:08:59 2000
@@ -1 +1,12 @@
+CROSS_LIBGCC1 = libgcc1-asm.a
+LIB1ASMSRC = pa/lib1linux.asm
+LIB1ASMFUNCS = _divI _divU _remI _remU _multiply
+
 ADA_CFLAGS=-mdisable-indexing
+LIB2FUNCS_EXTRA=lib2funcs-elf.S
+
+lib2funcs-elf.S: $(srcdir)/config/pa/lib2funcs-elf.S
+	rm -f lib2funcs-elf.S
+	cp $(srcdir)/config/pa/lib2funcs-elf.S .
+
+TARGET_LIBGCC2_CFLAGS = 
diff --exclude=CVS --exclude=configure -urN gcc-sourceware/gcc/configure.in gcc-puffin/gcc/configure.in
--- gcc-sourceware/gcc/configure.in	Fri Jul  7 19:12:24 2000
+++ gcc-puffin/gcc/configure.in	Fri Jul  7 18:30:34 2000
@@ -992,12 +992,13 @@
 	h8300-*-*)
 		float_format=i32
 		;;
-	hppa*-*-linux*)
+	hppa1.1-*-linux*)
 		target_cpu_default="(MASK_PA_11 | MASK_GAS | MASK_JUMP_IN_DELAY)"
-		tm_file="${tm_file} pa/elf.h linux.h pa/pa-linux.h"
-		tmake_file="t-linux pa/t-linux"
-		extra_parts="crtbegin.o crtend.o"
-		xmake_file=none
+		tm_file="${tm_file} pa/pa32-regs.h pa/pa-linux.h"
+		xm_file=pa/xm-linux.h
+		tmake_file=pa/t-linux
+		xmake_file=x-linux
+		extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
 		gas=yes gnu_ld=yes
  		if test x$enable_threads = xyes; then
  			thread_file='posix'
diff --exclude=CVS --exclude=configure -urN gcc-sourceware/gcc/config/pa/lib1linux.asm gcc-puffin/gcc/config/pa/lib1linux.asm
--- gcc-sourceware/gcc/config/pa/lib1linux.asm	Wed Dec 31 19:00:00 1969
+++ gcc-puffin/gcc/config/pa/lib1linux.asm	Thu Jul  6 17:07:01 2000
@@ -0,0 +1,1117 @@
+/*  Low level integer divide, multiply, remainder, etc routines for the HPPA.
+ *  Copyright (C) 1995 Free Software Foundation, Inc.
+
+ *  This file is part of GNU CC.
+
+ *  GNU CC is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+
+ * In addition to the permissions in the GNU General Public License, the
+ * Free Software Foundation gives you unlimited permission to link the
+ * compiled version of this file with other programs, and to distribute
+ * those programs without any restriction coming from the use of this
+ * file.  (The General Public License restrictions do apply in other
+ * respects; for example, they cover modification of the file, and
+ * distribution when not linked into another program.)
+
+ *  GNU CC is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+
+ *  You should have received a copy of the GNU General Public License
+ *  along with GNU CC; see the file COPYING.  If not, write to
+ *  the Free Software Foundation, 59 Temple Place - Suite 330,
+ *  Boston, MA 02111-1307, USA.
+ */
+
+#ifdef L_dyncall
+	.text
+	.export	$$dyncall
+$$dyncall:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	bb,>=,n	%r22,30,L$1		;! branch if not plabel address
+	depi	0,31,2,%r22		;! clear the two least significant bits
+	ldw	4(%sr0,%r22),%r19	;! load new LTP value
+	ldw	0(%sr0,%r22),%r22	;! load address of target
+L$1	ldsid	(%sr0,%r22),%r1		;! get the "space ident" selected by r22
+	mtsp	%r1,%sr0		;! move that space identifier into sr0
+	be	0(%sr0,%r22)		;! branch to the real target
+	stw	%r2,-24(%sr0,%r30)	;! save return address into frame marker
+	.exit
+	.procend
+#endif
+
+
+#ifdef L_multiply
+#define	op0	%r26
+#define	op1	%r25
+#define res	%r29
+#define ret	%r31
+#define tmp	%r1
+	.text
+	.align 4
+	.export	$$mulU
+	.export	$$mulI
+$$mulU:
+$$mulI:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	addi,tr		0,%r0,res	;! clear out res, skip next insn
+L$loop:	zdep		op1,26,27,op1	;! shift up op1 by 5
+L$lo:	zdep		op0,30,5,tmp	;! extract next 5 bits and shift up
+	blr		tmp,%r0
+	extru		op0,26,27,op0	;! shift down op0 by 5
+L$0:	comib,<>	0,op0,L$lo
+	zdep		op1,26,27,op1	;! shift up op1 by 5
+	bv		%r0(ret)
+	nop
+L$1:	b		L$loop
+	addl		op1,res,res
+	nop
+	nop
+L$2:	b		L$loop
+	sh1addl		op1,res,res
+	nop
+	nop
+L$3:	sh1addl		op1,op1,tmp	;! 3x
+	b		L$loop
+	addl		tmp,res,res
+	nop
+L$4:	b		L$loop
+	sh2addl		op1,res,res
+	nop
+	nop
+L$5:	sh2addl		op1,op1,tmp	;! 5x
+	b		L$loop
+	addl		tmp,res,res
+	nop
+L$6:	sh1addl		op1,op1,tmp	;! 3x
+	b		L$loop
+	sh1addl		tmp,res,res
+	nop
+L$7:	zdep		op1,28,29,tmp	;! 8x
+	sub		tmp,op1,tmp	;! 7x
+	b		L$loop
+	addl		tmp,res,res
+L$8:	b		L$loop
+	sh3addl		op1,res,res
+	nop
+	nop
+L$9:	sh3addl		op1,op1,tmp	;! 9x
+	b		L$loop
+	addl		tmp,res,res
+	nop
+L$10:	sh2addl		op1,op1,tmp	;! 5x
+	b		L$loop
+	sh1addl		tmp,res,res
+	nop
+L$11:	sh2addl		op1,op1,tmp	;! 5x
+	sh1addl		tmp,op1,tmp	;! 11x
+	b		L$loop
+	addl		tmp,res,res
+L$12:	sh1addl		op1,op1,tmp	;! 3x
+	b		L$loop
+	sh2addl		tmp,res,res
+	nop
+L$13:	sh1addl		op1,op1,tmp	;! 3x
+	sh2addl		tmp,op1,tmp	;! 13x
+	b		L$loop
+	addl		tmp,res,res
+L$14:	zdep		op1,28,29,tmp	;! 8x
+	sub		tmp,op1,tmp	;! 7x
+	b		L$loop
+	sh1addl		tmp,res,res
+L$15:	zdep		op1,27,28,tmp	;! 16x
+	sub		tmp,op1,tmp	;! 15x
+	b		L$loop
+	addl		tmp,res,res
+L$16:	zdep		op1,27,28,tmp	;! 16x
+	b		L$loop
+	addl		tmp,res,res
+	nop
+L$17:	zdep		op1,27,28,tmp	;! 16x
+	addl		tmp,op1,tmp	;! 17x
+	b		L$loop
+	addl		tmp,res,res
+L$18:	sh3addl		op1,op1,tmp	;! 9x
+	b		L$loop
+	sh1addl		tmp,res,res
+	nop
+L$19:	sh3addl		op1,op1,tmp	;! 9x
+	sh1addl		tmp,op1,tmp	;! 19x
+	b		L$loop
+	addl		tmp,res,res
+L$20:	sh2addl		op1,op1,tmp	;! 5x
+	b		L$loop
+	sh2addl		tmp,res,res
+	nop
+L$21:	sh2addl		op1,op1,tmp	;! 5x
+	sh2addl		tmp,op1,tmp	;! 21x
+	b		L$loop
+	addl		tmp,res,res
+L$22:	sh2addl		op1,op1,tmp	;! 5x
+	sh1addl		tmp,op1,tmp	;! 11x
+	b		L$loop
+	sh1addl		tmp,res,res
+L$23:	sh1addl		op1,op1,tmp	;! 3x
+	sh3addl		tmp,res,res	;! += 8x3
+	b		L$loop
+	sub		res,op1,res	;! -= x
+L$24:	sh1addl		op1,op1,tmp	;! 3x
+	b		L$loop
+	sh3addl		tmp,res,res	;! += 8x3
+	nop
+L$25:	sh2addl		op1,op1,tmp	;! 5x
+	sh2addl		tmp,tmp,tmp	;! 25x
+	b		L$loop
+	addl		tmp,res,res
+L$26:	sh1addl		op1,op1,tmp	;! 3x
+	sh2addl		tmp,op1,tmp	;! 13x
+	b		L$loop
+	sh1addl		tmp,res,res	;! += 2x13
+L$27:	sh1addl		op1,op1,tmp	;! 3x
+	sh3addl		tmp,tmp,tmp	;! 27x
+	b		L$loop
+	addl		tmp,res,res
+L$28:	zdep		op1,28,29,tmp	;! 8x
+	sub		tmp,op1,tmp	;! 7x
+	b		L$loop
+	sh2addl		tmp,res,res	;! += 4x7
+L$29:	sh1addl		op1,op1,tmp	;! 3x
+	sub		res,tmp,res	;! -= 3x
+	b		L$foo
+	zdep		op1,26,27,tmp	;! 32x
+L$30:	zdep		op1,27,28,tmp	;! 16x
+	sub		tmp,op1,tmp	;! 15x
+	b		L$loop
+	sh1addl		tmp,res,res	;! += 2x15
+L$31:	zdep		op1,26,27,tmp	;! 32x
+	sub		tmp,op1,tmp	;! 31x
+L$foo:	b		L$loop
+	addl		tmp,res,res
+	.exit
+	.procend
+#endif
+
+
+#ifdef L_divU
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define quotient %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU
+$$divU:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	comb,<		divisor,0,L$largedivisor
+	 sub		%r0,divisor,%r1		;! clear cy as side-effect
+	ds		%r0,%r1,%r0
+	addc		dividend,dividend,dividend
+	ds		%r0,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,quotient
+	ds		%r1,divisor,%r1
+	bv		%r0(ret)
+	addc		quotient,quotient,quotient
+L$largedivisor:
+	comclr,<<	dividend,divisor,quotient
+	ldi		1,quotient
+	bv,n		%r0(ret)
+	.exit
+	.procend
+#endif
+
+
+#ifdef L_remU
+#define dividend %r26
+#define divisor %r25
+#define quotient %r29
+#define tmp %r1
+#define ret %r31
+	.text
+	.align 4
+	.export	$$remU
+$$remU:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	comb,<		divisor,0,L$largedivisor
+	 sub		%r0,divisor,%r1		;! clear cy as side-effect
+	ds		%r0,%r1,%r0
+	addc		dividend,dividend,dividend
+	ds		%r0,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,quotient
+	ds		%r1,divisor,%r1
+	comclr,>=	%r1,%r0,%r0
+	addl		%r1,divisor,%r1
+	bv		%r0(ret)
+	copy		%r1,quotient
+L$largedivisor:
+	sub,>>=		dividend,divisor,quotient
+	copy		dividend,quotient
+	bv,n		%r0(ret)
+	.exit
+	.procend
+#endif
+
+
+#ifdef L_divI
+#define dividend %r26
+#define divisor %r25
+#define quotient %r29
+#define tmp %r1
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divI
+$$divI:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	xor		dividend,divisor,quotient	;! result sign
+	comclr,>=	divisor,%r0,%r0			;! get absolute values
+	sub		%r0,divisor,divisor
+	comclr,>=	dividend,%r0,%r0
+	sub		%r0,dividend,dividend
+
+	comb,<		divisor,0,L$largedivisor
+	 sub		%r0,divisor,%r1		;! clear cy as side-effect
+	ds		%r0,%r1,%r0
+	addc		dividend,dividend,dividend
+	ds		%r0,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	comclr,>=	%r1,%r0,%r0
+	addl		%r1,divisor,%r1
+	comclr,>=	quotient,%r0,%r0	;! skip of no need to negate
+	sub		%r0,dividend,dividend
+	bv		%r0(ret)
+	copy		dividend,quotient
+L$largedivisor:
+	comclr,<<	dividend,divisor,quotient
+	ldi		1,quotient
+	bv,n		%r0(ret)
+	.exit
+	.procend
+#endif
+
+
+#ifdef L_remI
+#define dividend %r26
+#define divisor %r25
+#define quotient %r29
+#define tmp %r1
+#define ret %r31
+	.text
+	.align 4
+	.export	$$remI
+$$remI:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	xor		dividend,%r0,quotient		;! result sign
+	comclr,>=	divisor,%r0,%r0			;! get absolute values
+	sub		%r0,divisor,divisor
+	comclr,>=	dividend,%r0,%r0
+	sub		%r0,dividend,dividend
+
+	comb,<		divisor,0,L$largedivisor
+	 sub		%r0,divisor,%r1		;! clear cy as side-effect
+	ds		%r0,%r1,%r0
+	addc		dividend,dividend,dividend
+	ds		%r0,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	comclr,>=	%r1,%r0,%r0
+	addl		%r1,divisor,%r1
+	comclr,>=	quotient,%r0,%r0	;! skip of no need to negate
+	sub		%r0,%r1,%r1
+	bv		%r0(ret)
+	copy		%r1,quotient
+L$largedivisor:
+	sub,>>=		dividend,divisor,quotient
+	copy		dividend,quotient
+	bv,n		%r0(ret)
+	.exit
+	.procend
+#endif
+
+
+#if defined (L_divU_3) && !defined (SMALL_LIB)
+#undef L_divU_3
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define result %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU_3
+$$divU_3:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	sh2add	%r26,%r26,%r29		;! r29 = lo(101 x r)
+	shd	%r0,%r26,30,%r1		;!  r1 = hi(100 x r)
+	addc	%r1,%r0,%r1		;!  r1 = hi(101 x r)
+;! r in r1,,r29
+	zdep	%r29,27,28,%r25		;! r25 = lo(10000 x r)
+	add	%r25,%r29,%r25		;! r25 = lo(10001 x r)
+	shd	%r1,%r29,28,%r29	;! r29 = hi(10000 x r)
+	addc	%r29,%r1,%r29		;! r29 = hi(10001 x r)
+;! r in r29,,r25
+	zdep	%r25,23,24,%r1		;!  r1 = lo(100000000 x r)
+	add	%r1,%r25,%r1		;!  r1 = lo(100000001 x r)
+	shd	%r29,%r25,24,%r25	;! r25 = hi(100000000 x r)
+	addc	%r25,%r29,%r25		;! r25 = hi(100000001 x r)
+;! r in r25,,r1
+	zdep	%r1,15,16,%r29
+	add	%r29,%r1,%r29
+	shd	%r25,%r1,16,%r1
+	addc	%r1,%r25,%r1
+;! r in r1,,r29
+	sh1add	%r29,%r26,%r0		;!  r0 = lo(10 x r) + dividend
+	shd	%r1,%r29,31,%r29	;! r29 = hi(10 x r)
+	addc	%r29,%r0,%r29
+	bv	%r0(ret)
+	extru	%r29,30,31,result
+	.exit
+	.procend
+#endif
+
+
+#if defined (L_divU_5) && !defined (SMALL_LIB)
+#undef L_divU_5
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define result %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU_5
+$$divU_5:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	sh1add	%r26,%r26,%r29		;! r29 = lo(11 x r)
+	shd	%r0,%r26,31,%r1		;!  r1 = hi(10 x r)
+	addc	%r1,%r0,%r1		;!  r1 = hi(11 x r)
+;! r in r1,,r29
+	zdep	%r29,27,28,%r25		;! r25 = lo(10000 x r)
+	add	%r25,%r29,%r25		;! r25 = lo(10001 x r)
+	shd	%r1,%r29,28,%r29	;! r29 = hi(10000 x r)
+	addc	%r29,%r1,%r29		;! r29 = hi(10001 x r)
+;! r in r29,,r25
+	zdep	%r25,23,24,%r1		;!  r1 = lo(100000000 x r)
+	add	%r1,%r25,%r1		;!  r1 = lo(100000001 x r)
+	shd	%r29,%r25,24,%r25	;! r25 = hi(100000000 x r)
+	addc	%r25,%r29,%r25		;! r25 = hi(100000001 x r)
+;! r in r25,,r1
+	zdep	%r1,15,16,%r29
+	add	%r29,%r1,%r29
+	shd	%r25,%r1,16,%r1
+	addc	%r1,%r25,%r1
+;! r in r1,,r29
+	sh2add	%r29,%r26,%r0		;!  r0 = lo(1000 x r) + dividend
+	shd	%r1,%r29,30,%r29	;! r29 = hi(1000 x r)
+	addc	%r29,%r0,%r29
+	bv	%r0(ret)
+	extru	%r29,29,30,result
+	.exit
+	.procend
+#endif
+
+
+#if defined (L_divU_6) && !defined (SMALL_LIB)
+#undef L_divU_6
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define result %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU_6
+$$divU_6:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	sh2add	%r26,%r26,%r29		;! r29 = lo(101 x r)
+	shd	%r0,%r26,30,%r1		;!  r1 = hi(100 x r)
+	addc	%r1,%r0,%r1		;!  r1 = hi(101 x r)
+;! r in r1,,r29
+	zdep	%r29,27,28,%r25		;! r25 = lo(10000 x r)
+	add	%r25,%r29,%r25		;! r25 = lo(10001 x r)
+	shd	%r1,%r29,28,%r29	;! r29 = hi(10000 x r)
+	addc	%r29,%r1,%r29		;! r29 = hi(10001 x r)
+;! r in r29,,r25
+	zdep	%r25,23,24,%r1		;!  r1 = lo(100000000 x r)
+	add	%r1,%r25,%r1		;!  r1 = lo(100000001 x r)
+	shd	%r29,%r25,24,%r25	;! r25 = hi(100000000 x r)
+	addc	%r25,%r29,%r25		;! r25 = hi(100000001 x r)
+;! r in r25,,r1
+	zdep	%r1,15,16,%r29
+	add	%r29,%r1,%r29
+	shd	%r25,%r1,16,%r1
+	addc	%r1,%r25,%r1
+;! r in r1,,r29
+	sh1add	%r29,%r26,%r0		;!  r0 = lo(10 x r) + dividend
+	shd	%r1,%r29,31,%r29	;! r29 = hi(10 x r)
+	addc	%r29,%r0,%r29
+	bv	%r0(ret)
+	extru	%r29,29,30,result
+	.exit
+	.procend
+#endif
+
+
+#if defined (L_divU_9) && !defined (SMALL_LIB)
+#undef L_divU_9
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define result %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU_9
+$$divU_9:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	zdep	%r26,28,29,%r29
+	sub	%r29,%r26,%r29
+	shd	0,%r26,29,%r1
+	subb	%r1,0,%r1		/* 111 */
+
+	zdep	%r29,25,26,%r25
+	add	%r25,%r29,%r25
+	shd	%r1,%r29,26,%r29
+	addc	%r29,%r1,%r29		/* 111000111 */
+
+	sh3add	%r25,%r26,%r1
+	shd	%r29,%r25,29,%r25
+	addc	%r25,0,%r25		/* 111000111001 */
+
+	zdep	%r1,16,17,%r29
+	sub	%r29,%r1,%r29
+	shd	%r25,%r1,17,%r1
+	subb	%r1,%r25,%r1		/* 111000111000111000111000111 */
+
+	sh3add	%r29,%r26,%r0
+	shd	%r1,%r29,29,%r29
+	addc	%r29,0,%r29		/* 111000111000111000111000111001 */
+	bv	%r0(ret)
+	extru	%r29,30,31,result
+	.exit
+	.procend
+#endif
+
+
+#if defined (L_divU_10) && !defined (SMALL_LIB)
+#undef L_divU_10
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define result %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU_10
+$$divU_10:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	sh1add	%r26,%r26,%r29		;! r29 = lo(11 x r)
+	shd	%r0,%r26,31,%r1		;!  r1 = hi(10 x r)
+	addc	%r1,%r0,%r1		;!  r1 = hi(11 x r)
+;! r in r1,,r29
+	zdep	%r29,27,28,%r25		;! r25 = lo(10000 x r)
+	add	%r25,%r29,%r25		;! r25 = lo(10001 x r)
+	shd	%r1,%r29,28,%r29	;! r29 = hi(10000 x r)
+	addc	%r29,%r1,%r29		;! r29 = hi(10001 x r)
+;! r in r29,,r25
+	zdep	%r25,23,24,%r1		;!  r1 = lo(100000000 x r)
+	add	%r1,%r25,%r1		;!  r1 = lo(100000001 x r)
+	shd	%r29,%r25,24,%r25	;! r25 = hi(100000000 x r)
+	addc	%r25,%r29,%r25		;! r25 = hi(100000001 x r)
+;! r in r25,,r1
+	zdep	%r1,15,16,%r29
+	add	%r29,%r1,%r29
+	shd	%r25,%r1,16,%r1
+	addc	%r1,%r25,%r1
+;! r in r1,,r29
+	sh2add	%r29,%r26,%r0		;!  r0 = lo(1000 x r) + dividend
+	shd	%r1,%r29,30,%r29	;! r29 = hi(1000 x r)
+	addc	%r29,%r0,%r29
+	bv	%r0(ret)
+	extru	%r29,28,29,result
+	.exit
+	.procend
+#endif
+
+
+#if defined (L_divU_12) && !defined (SMALL_LIB)
+#undef L_divU_12
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define result %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU_12
+$$divU_12:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	sh2add	%r26,%r26,%r29		;! r29 = lo(101 x r)
+	shd	%r0,%r26,30,%r1		;!  r1 = hi(100 x r)
+	addc	%r1,%r0,%r1		;!  r1 = hi(101 x r)
+;! r in r1,,r29
+	zdep	%r29,27,28,%r25		;! r25 = lo(10000 x r)
+	add	%r25,%r29,%r25		;! r25 = lo(10001 x r)
+	shd	%r1,%r29,28,%r29	;! r29 = hi(10000 x r)
+	addc	%r29,%r1,%r29		;! r29 = hi(10001 x r)
+;! r in r29,,r25
+	zdep	%r25,23,24,%r1		;!  r1 = lo(100000000 x r)
+	add	%r1,%r25,%r1		;!  r1 = lo(100000001 x r)
+	shd	%r29,%r25,24,%r25	;! r25 = hi(100000000 x r)
+	addc	%r25,%r29,%r25		;! r25 = hi(100000001 x r)
+;! r in r25,,r1
+	zdep	%r1,15,16,%r29
+	add	%r29,%r1,%r29
+	shd	%r25,%r1,16,%r1
+	addc	%r1,%r25,%r1
+;! r in r1,,r29
+	sh1add	%r29,%r26,%r0		;!  r0 = lo(10 x r) + dividend
+	shd	%r1,%r29,31,%r29	;! r29 = hi(10 x r)
+	addc	%r29,%r0,%r29
+	bv	%r0(ret)
+	extru	%r29,28,29,result
+	.exit
+	.procend
+#endif
+
+
+#ifdef L_divU_3
+	.text
+	.align	4
+	.export	$$divU_3
+$$divU_3:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		3,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_5
+	.text
+	.align	4
+	.export	$$divU_5
+$$divU_5:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		5,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_6
+	.text
+	.align	4
+	.export	$$divU_6
+$$divU_6:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		6,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_7
+	.text
+	.align	4
+	.export	$$divU_7
+$$divU_7:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		7,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_9
+	.text
+	.align	4
+	.export	$$divU_9
+$$divU_9:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		9,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_10
+	.text
+	.align	4
+	.export	$$divU_10
+$$divU_10:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		10,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_12
+	.text
+	.align	4
+	.export	$$divU_12
+$$divU_12:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		12,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_14
+	.text
+	.align	4
+	.export	$$divU_14
+$$divU_14:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		14,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_15
+	.text
+	.align	4
+	.export	$$divU_15
+$$divU_15:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		15,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divI_3
+	.text
+	.align	4
+	.export	$$divI_3
+$$divI_3:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		3,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_5
+	.text
+	.align	4
+	.export	$$divI_5
+$$divI_5:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		5,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_6
+	.text
+	.align	4
+	.export	$$divI_6
+$$divI_6:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		6,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_7
+	.text
+	.align	4
+	.export	$$divI_7
+$$divI_7:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		7,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_9
+	.text
+	.align	4
+	.export	$$divI_9
+$$divI_9:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		9,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_10
+	.text
+	.align	4
+	.export	$$divI_10
+$$divI_10:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		10,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_12
+	.text
+	.align	4
+	.export	$$divI_12
+$$divI_12:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		12,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_14
+	.text
+	.align	4
+	.export	$$divI_14
+$$divI_14:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		14,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_15
+	.text
+	.align	4
+	.export	$$divI_15
+$$divI_15:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		15,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
diff --exclude=CVS --exclude=configure -urN gcc-sourceware/gcc/config/pa/lib2funcs-elf.S gcc-puffin/gcc/config/pa/lib2funcs-elf.S
--- gcc-sourceware/gcc/config/pa/lib2funcs-elf.S	Wed Dec 31 19:00:00 1969
+++ gcc-puffin/gcc/config/pa/lib2funcs-elf.S	Thu Jul  6 18:05:26 2000
@@ -0,0 +1,1221 @@
+;!  Subroutines for calling unbound dynamic functions from within GDB for HPPA.
+;!  Subroutines for out of line prologues and epilogues on for the HPPA
+;!  Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
+
+;!  This file is part of GNU CC.
+
+;!  GNU CC is free software; you can redistribute it and/or modify
+;!  it under the terms of the GNU General Public License as published by
+;!  the Free Software Foundation; either version 2, or (at your option)
+;!  any later version.
+
+;!  GNU CC is distributed in the hope that it will be useful,
+;!  but WITHOUT ANY WARRANTY; without even the implied warranty of
+;!  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;!  GNU General Public License for more details.
+
+;! In addition to the permissions in the GNU General Public License, the
+;! Free Software Foundation gives you unlimited permission to link the
+;! compiled version of this file with other programs, and to distribute
+;! those programs without any restriction coming from the use of this
+;! file.  (The General Public License restrictions do apply in other
+;! respects; for example, they cover modification of the file, and
+;! distribution when not linked into another program.)
+
+;!  You should have received a copy of the GNU General Public License
+;!  along with GNU CC; see the file COPYING.  If not, write to
+;!  the Free Software Foundation, 59 Temple Place - Suite 330,
+;!  Boston, MA 02111-1307, USA.
+
+;! gcc_compiled.:
+	.text
+
+;! Simply call with the address of the desired import stub in %r22 and
+;! arguments in the normal place (%r26-%r23 and stack slots).
+;!
+	.align 4
+	.EXPORT __gcc_plt_call,ENTRY,PRIV_LEV=3,RTNVAL=GR
+__gcc_plt_call:
+	.PROC
+	.CALLINFO
+	.ENTRY
+	;! Our return address comes in %r31, not %r2!
+	stw %r31,-8(%r30)
+
+	;! An inline version of dyncall so we do not have to worry
+	;! about long calls to millicode, PIC and other complexities.
+	bb,>=,n %r22,30,L$foo
+        depi 0,31,2,%r22
+        ldw 4(%r22),%r19
+        ldw 0(%r22),%r22
+L$foo:
+        ldsid (%r22),%r1
+        mtsp %r1,%sr0
+        ble 0(%sr0,%r22)
+	copy %r31,%r2
+	ldw -8(%r30),%r2
+
+	;! We are going to be returning to a stack address, so we
+	;! need to do an intra-space return.
+	ldsid (%rp),%r1
+	mtsp %r1,%sr0
+	be,n 0(%sr0,%rp)
+	.EXIT
+	.PROCEND
+;!  Low level integer divide, multiply, remainder, etc routines for the HPPA.
+;!  Copyright (C) 1995 Free Software Foundation, Inc.
+
+;!  This file is part of GNU CC.
+
+;!  GNU CC is free software; you can redistribute it and/or modify
+;!  it under the terms of the GNU General Public License as published by
+;!  the Free Software Foundation; either version 2, or (at your option)
+;!  any later version.
+
+;! In addition to the permissions in the GNU General Public License, the
+;! Free Software Foundation gives you unlimited permission to link the
+;! compiled version of this file with other programs, and to distribute
+;! those programs without any restriction coming from the use of this
+;! file.  (The General Public License restrictions do apply in other
+;! respects; for example, they cover modification of the file, and
+;! distribution when not linked into another program.)
+
+;!  GNU CC is distributed in the hope that it will be useful,
+;!  but WITHOUT ANY WARRANTY; without even the implied warranty of
+;!  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;!  GNU General Public License for more details.
+
+;!  You should have received a copy of the GNU General Public License
+;!  along with GNU CC; see the file COPYING.  If not, write to
+;!  the Free Software Foundation, 59 Temple Place - Suite 330,
+;!  Boston, MA 02111-1307, USA.
+
+/* I don't know why these routines are #ifdef-ed, but this'll probably work */
+/* -PB */
+/* I have little confidence in this millicode file -- it was missing */
+/* sh_func_adrs... */
+#define L_dyncall
+#undef L_multiply
+#undef L_divU
+#undef L_remU
+#undef L_divI
+#undef L_remI
+#define L_divU_3
+#define L_divU_5
+#define L_divU_6
+#define L_divU_7
+#define L_divU_9
+#define L_divU_10
+#define L_divU_12
+#define L_divU_14
+#define L_divU_15
+#define L_divI_3
+#define L_divI_5
+#define L_divI_6
+#define L_divI_7
+#define L_divI_9
+#define L_divI_10
+#define L_divI_12
+#define L_divI_14
+#define L_divI_15
+
+#ifdef L_dyncall
+	.text
+	.export	$$dyncall
+$$dyncall:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	bb,>=,n	%r22,30,L$1		;! branch if not plabel address
+	depi	0,31,2,%r22		;! clear the two least significant bits
+	ldw	4(%sr0,%r22),%r19	;! load new LTP value
+	ldw	0(%sr0,%r22),%r22	;! load address of target
+L$1:	ldsid	(%sr0,%r22),%r1		;! get the "space ident" selected by r22
+	mtsp	%r1,%sr0		;! move that space identifier into sr0
+	be	0(%sr0,%r22)		;! branch to the real target
+	stw	%r2,-24(%sr0,%r30)	;! save return address into frame marker
+	.exit
+	.procend
+#endif
+
+
+#ifdef L_multiply
+#define	op0	%r26
+#define	op1	%r25
+#define res	%r29
+#define ret	%r31
+#define tmp	%r1
+	.text
+	.align 4
+	.export	$$mulU
+	.export	$$mulI
+$$mulU:
+$$mulI:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	addi,tr		0,%r0,res	;! clear out res, skip next insn
+L$loop:	zdep		op1,26,27,op1	;! shift up op1 by 5
+L$lo:	zdep		op0,30,5,tmp	;! extract next 5 bits and shift up
+	blr		tmp,%r0
+	extru		op0,26,27,op0	;! shift down op0 by 5
+L$0:	comib,<>	0,op0,L$lo
+	zdep		op1,26,27,op1	;! shift up op1 by 5
+	bv		%r0(ret)
+	nop
+L$1_2:	b		L$loop
+	addl		op1,res,res
+	nop
+	nop
+L$2:	b		L$loop
+	sh1addl		op1,res,res
+	nop
+	nop
+L$3:	sh1addl		op1,op1,tmp	;! 3x
+	b		L$loop
+	addl		tmp,res,res
+	nop
+L$4:	b		L$loop
+	sh2addl		op1,res,res
+	nop
+	nop
+L$5:	sh2addl		op1,op1,tmp	;! 5x
+	b		L$loop
+	addl		tmp,res,res
+	nop
+L$6:	sh1addl		op1,op1,tmp	;! 3x
+	b		L$loop
+	sh1addl		tmp,res,res
+	nop
+L$7:	zdep		op1,28,29,tmp	;! 8x
+	sub		tmp,op1,tmp	;! 7x
+	b		L$loop
+	addl		tmp,res,res
+L$8:	b		L$loop
+	sh3addl		op1,res,res
+	nop
+	nop
+L$9:	sh3addl		op1,op1,tmp	;! 9x
+	b		L$loop
+	addl		tmp,res,res
+	nop
+L$10:	sh2addl		op1,op1,tmp	;! 5x
+	b		L$loop
+	sh1addl		tmp,res,res
+	nop
+L$11:	sh2addl		op1,op1,tmp	;! 5x
+	sh1addl		tmp,op1,tmp	;! 11x
+	b		L$loop
+	addl		tmp,res,res
+L$12:	sh1addl		op1,op1,tmp	;! 3x
+	b		L$loop
+	sh2addl		tmp,res,res
+	nop
+L$13:	sh1addl		op1,op1,tmp	;! 3x
+	sh2addl		tmp,op1,tmp	;! 13x
+	b		L$loop
+	addl		tmp,res,res
+L$14:	zdep		op1,28,29,tmp	;! 8x
+	sub		tmp,op1,tmp	;! 7x
+	b		L$loop
+	sh1addl		tmp,res,res
+L$15:	zdep		op1,27,28,tmp	;! 16x
+	sub		tmp,op1,tmp	;! 15x
+	b		L$loop
+	addl		tmp,res,res
+L$16:	zdep		op1,27,28,tmp	;! 16x
+	b		L$loop
+	addl		tmp,res,res
+	nop
+L$17:	zdep		op1,27,28,tmp	;! 16x
+	addl		tmp,op1,tmp	;! 17x
+	b		L$loop
+	addl		tmp,res,res
+L$18:	sh3addl		op1,op1,tmp	;! 9x
+	b		L$loop
+	sh1addl		tmp,res,res
+	nop
+L$19:	sh3addl		op1,op1,tmp	;! 9x
+	sh1addl		tmp,op1,tmp	;! 19x
+	b		L$loop
+	addl		tmp,res,res
+L$20:	sh2addl		op1,op1,tmp	;! 5x
+	b		L$loop
+	sh2addl		tmp,res,res
+	nop
+L$21:	sh2addl		op1,op1,tmp	;! 5x
+	sh2addl		tmp,op1,tmp	;! 21x
+	b		L$loop
+	addl		tmp,res,res
+L$22:	sh2addl		op1,op1,tmp	;! 5x
+	sh1addl		tmp,op1,tmp	;! 11x
+	b		L$loop
+	sh1addl		tmp,res,res
+L$23:	sh1addl		op1,op1,tmp	;! 3x
+	sh3addl		tmp,res,res	;! += 8x3
+	b		L$loop
+	sub		res,op1,res	;! -= x
+L$24:	sh1addl		op1,op1,tmp	;! 3x
+	b		L$loop
+	sh3addl		tmp,res,res	;! += 8x3
+	nop
+L$25:	sh2addl		op1,op1,tmp	;! 5x
+	sh2addl		tmp,tmp,tmp	;! 25x
+	b		L$loop
+	addl		tmp,res,res
+L$26:	sh1addl		op1,op1,tmp	;! 3x
+	sh2addl		tmp,op1,tmp	;! 13x
+	b		L$loop
+	sh1addl		tmp,res,res	;! += 2x13
+L$27:	sh1addl		op1,op1,tmp	;! 3x
+	sh3addl		tmp,tmp,tmp	;! 27x
+	b		L$loop
+	addl		tmp,res,res
+L$28:	zdep		op1,28,29,tmp	;! 8x
+	sub		tmp,op1,tmp	;! 7x
+	b		L$loop
+	sh2addl		tmp,res,res	;! += 4x7
+L$29:	sh1addl		op1,op1,tmp	;! 3x
+	sub		res,tmp,res	;! -= 3x
+	b		L$foo2
+	zdep		op1,26,27,tmp	;! 32x
+L$30:	zdep		op1,27,28,tmp	;! 16x
+	sub		tmp,op1,tmp	;! 15x
+	b		L$loop
+	sh1addl		tmp,res,res	;! += 2x15
+L$31:	zdep		op1,26,27,tmp	;! 32x
+	sub		tmp,op1,tmp	;! 31x
+L$foo2:	b		L$loop
+	addl		tmp,res,res
+	.exit
+	.procend
+#endif
+
+
+#ifdef L_divU
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define quotient %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU
+$$divU:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	comb,<		divisor,0,L$largedivisor
+	 sub		%r0,divisor,%r1		;! clear cy as side-effect
+	ds		%r0,%r1,%r0
+	addc		dividend,dividend,dividend
+	ds		%r0,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,quotient
+	ds		%r1,divisor,%r1
+	bv		%r0(ret)
+	addc		quotient,quotient,quotient
+L$largedivisor:
+	comclr,<<	dividend,divisor,quotient
+	ldi		1,quotient
+	bv,n		%r0(ret)
+	.exit
+	.procend
+#endif
+
+
+#ifdef L_remU
+#define dividend %r26
+#define divisor %r25
+#define quotient %r29
+#define tmp %r1
+#define ret %r31
+	.text
+	.align 4
+	.export	$$remU
+$$remU:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	comb,<		divisor,0,L$largedivisor2
+	 sub		%r0,divisor,%r1		;! clear cy as side-effect
+	ds		%r0,%r1,%r0
+	addc		dividend,dividend,dividend
+	ds		%r0,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,quotient
+	ds		%r1,divisor,%r1
+	comclr,>=	%r1,%r0,%r0
+	addl		%r1,divisor,%r1
+	bv		%r0(ret)
+	copy		%r1,quotient
+L$largedivisor2:
+	sub,>>=		dividend,divisor,quotient
+	copy		dividend,quotient
+	bv,n		%r0(ret)
+	.exit
+	.procend
+#endif
+
+
+#ifdef L_divI
+#define dividend %r26
+#define divisor %r25
+#define quotient %r29
+#define tmp %r1
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divI
+$$divI:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	xor		dividend,divisor,quotient	;! result sign
+	comclr,>=	divisor,%r0,%r0			;! get absolute values
+	sub		%r0,divisor,divisor
+	comclr,>=	dividend,%r0,%r0
+	sub		%r0,dividend,dividend
+
+	comb,<		divisor,0,L$largedivisor3
+	 sub		%r0,divisor,%r1		;! clear cy as side-effect
+	ds		%r0,%r1,%r0
+	addc		dividend,dividend,dividend
+	ds		%r0,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	comclr,>=	%r1,%r0,%r0
+	addl		%r1,divisor,%r1
+	comclr,>=	quotient,%r0,%r0	;! skip of no need to negate
+	sub		%r0,dividend,dividend
+	bv		%r0(ret)
+	copy		dividend,quotient
+L$largedivisor3:
+	comclr,<<	dividend,divisor,quotient
+	ldi		1,quotient
+	bv,n		%r0(ret)
+	.exit
+	.procend
+#endif
+
+
+#ifdef L_remI
+#define dividend %r26
+#define divisor %r25
+#define quotient %r29
+#define tmp %r1
+#define ret %r31
+	.text
+	.align 4
+	.export	$$remI
+$$remI:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	xor		dividend,%r0,quotient		;! result sign
+	comclr,>=	divisor,%r0,%r0			;! get absolute values
+	sub		%r0,divisor,divisor
+	comclr,>=	dividend,%r0,%r0
+	sub		%r0,dividend,dividend
+
+	comb,<		divisor,0,L$largedivisor4
+	 sub		%r0,divisor,%r1		;! clear cy as side-effect
+	ds		%r0,%r1,%r0
+	addc		dividend,dividend,dividend
+	ds		%r0,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	ds		%r1,divisor,%r1
+	addc		dividend,dividend,dividend
+	comclr,>=	%r1,%r0,%r0
+	addl		%r1,divisor,%r1
+	comclr,>=	quotient,%r0,%r0	;! skip of no need to negate
+	sub		%r0,%r1,%r1
+	bv		%r0(ret)
+	copy		%r1,quotient
+L$largedivisor4:
+	sub,>>=		dividend,divisor,quotient
+	copy		dividend,quotient
+	bv,n		%r0(ret)
+	.exit
+	.procend
+#endif
+
+
+#if defined (L_divU_3) && !defined (SMALL_LIB)
+#undef L_divU_3
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define result %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU_3
+$$divU_3:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	sh2add	%r26,%r26,%r29		;! r29 = lo(101 x r)
+	shd	%r0,%r26,30,%r1		;!  r1 = hi(100 x r)
+	addc	%r1,%r0,%r1		;!  r1 = hi(101 x r)
+;! r in r1,,r29
+	zdep	%r29,27,28,%r25		;! r25 = lo(10000 x r)
+	add	%r25,%r29,%r25		;! r25 = lo(10001 x r)
+	shd	%r1,%r29,28,%r29	;! r29 = hi(10000 x r)
+	addc	%r29,%r1,%r29		;! r29 = hi(10001 x r)
+;! r in r29,,r25
+	zdep	%r25,23,24,%r1		;!  r1 = lo(100000000 x r)
+	add	%r1,%r25,%r1		;!  r1 = lo(100000001 x r)
+	shd	%r29,%r25,24,%r25	;! r25 = hi(100000000 x r)
+	addc	%r25,%r29,%r25		;! r25 = hi(100000001 x r)
+;! r in r25,,r1
+	zdep	%r1,15,16,%r29
+	add	%r29,%r1,%r29
+	shd	%r25,%r1,16,%r1
+	addc	%r1,%r25,%r1
+;! r in r1,,r29
+	sh1add	%r29,%r26,%r0		;!  r0 = lo(10 x r) + dividend
+	shd	%r1,%r29,31,%r29	;! r29 = hi(10 x r)
+	addc	%r29,%r0,%r29
+	bv	%r0(ret)
+	extru	%r29,30,31,result
+	.exit
+	.procend
+#endif
+
+
+#if defined (L_divU_5) && !defined (SMALL_LIB)
+#undef L_divU_5
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define result %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU_5
+$$divU_5:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	sh1add	%r26,%r26,%r29		;! r29 = lo(11 x r)
+	shd	%r0,%r26,31,%r1		;!  r1 = hi(10 x r)
+	addc	%r1,%r0,%r1		;!  r1 = hi(11 x r)
+;! r in r1,,r29
+	zdep	%r29,27,28,%r25		;! r25 = lo(10000 x r)
+	add	%r25,%r29,%r25		;! r25 = lo(10001 x r)
+	shd	%r1,%r29,28,%r29	;! r29 = hi(10000 x r)
+	addc	%r29,%r1,%r29		;! r29 = hi(10001 x r)
+;! r in r29,,r25
+	zdep	%r25,23,24,%r1		;!  r1 = lo(100000000 x r)
+	add	%r1,%r25,%r1		;!  r1 = lo(100000001 x r)
+	shd	%r29,%r25,24,%r25	;! r25 = hi(100000000 x r)
+	addc	%r25,%r29,%r25		;! r25 = hi(100000001 x r)
+;! r in r25,,r1
+	zdep	%r1,15,16,%r29
+	add	%r29,%r1,%r29
+	shd	%r25,%r1,16,%r1
+	addc	%r1,%r25,%r1
+;! r in r1,,r29
+	sh2add	%r29,%r26,%r0		;!  r0 = lo(1000 x r) + dividend
+	shd	%r1,%r29,30,%r29	;! r29 = hi(1000 x r)
+	addc	%r29,%r0,%r29
+	bv	%r0(ret)
+	extru	%r29,29,30,result
+	.exit
+	.procend
+#endif
+
+
+#if defined (L_divU_6) && !defined (SMALL_LIB)
+#undef L_divU_6
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define result %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU_6
+$$divU_6:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	sh2add	%r26,%r26,%r29		;! r29 = lo(101 x r)
+	shd	%r0,%r26,30,%r1		;!  r1 = hi(100 x r)
+	addc	%r1,%r0,%r1		;!  r1 = hi(101 x r)
+;! r in r1,,r29
+	zdep	%r29,27,28,%r25		;! r25 = lo(10000 x r)
+	add	%r25,%r29,%r25		;! r25 = lo(10001 x r)
+	shd	%r1,%r29,28,%r29	;! r29 = hi(10000 x r)
+	addc	%r29,%r1,%r29		;! r29 = hi(10001 x r)
+;! r in r29,,r25
+	zdep	%r25,23,24,%r1		;!  r1 = lo(100000000 x r)
+	add	%r1,%r25,%r1		;!  r1 = lo(100000001 x r)
+	shd	%r29,%r25,24,%r25	;! r25 = hi(100000000 x r)
+	addc	%r25,%r29,%r25		;! r25 = hi(100000001 x r)
+;! r in r25,,r1
+	zdep	%r1,15,16,%r29
+	add	%r29,%r1,%r29
+	shd	%r25,%r1,16,%r1
+	addc	%r1,%r25,%r1
+;! r in r1,,r29
+	sh1add	%r29,%r26,%r0		;!  r0 = lo(10 x r) + dividend
+	shd	%r1,%r29,31,%r29	;! r29 = hi(10 x r)
+	addc	%r29,%r0,%r29
+	bv	%r0(ret)
+	extru	%r29,29,30,result
+	.exit
+	.procend
+#endif
+
+
+#if defined (L_divU_9) && !defined (SMALL_LIB)
+#undef L_divU_9
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define result %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU_9
+$$divU_9:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	zdep	%r26,28,29,%r29
+	sub	%r29,%r26,%r29
+	shd	0,%r26,29,%r1
+	subb	%r1,0,%r1		/* 111 */
+
+	zdep	%r29,25,26,%r25
+	add	%r25,%r29,%r25
+	shd	%r1,%r29,26,%r29
+	addc	%r29,%r1,%r29		/* 111000111 */
+
+	sh3add	%r25,%r26,%r1
+	shd	%r29,%r25,29,%r25
+	addc	%r25,0,%r25		/* 111000111001 */
+
+	zdep	%r1,16,17,%r29
+	sub	%r29,%r1,%r29
+	shd	%r25,%r1,17,%r1
+	subb	%r1,%r25,%r1		/* 111000111000111000111000111 */
+
+	sh3add	%r29,%r26,%r0
+	shd	%r1,%r29,29,%r29
+	addc	%r29,0,%r29		/* 111000111000111000111000111001 */
+	bv	%r0(ret)
+	extru	%r29,30,31,result
+	.exit
+	.procend
+#endif
+
+
+#if defined (L_divU_10) && !defined (SMALL_LIB)
+#undef L_divU_10
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define result %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU_10
+$$divU_10:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	sh1add	%r26,%r26,%r29		;! r29 = lo(11 x r)
+	shd	%r0,%r26,31,%r1		;!  r1 = hi(10 x r)
+	addc	%r1,%r0,%r1		;!  r1 = hi(11 x r)
+;! r in r1,,r29
+	zdep	%r29,27,28,%r25		;! r25 = lo(10000 x r)
+	add	%r25,%r29,%r25		;! r25 = lo(10001 x r)
+	shd	%r1,%r29,28,%r29	;! r29 = hi(10000 x r)
+	addc	%r29,%r1,%r29		;! r29 = hi(10001 x r)
+;! r in r29,,r25
+	zdep	%r25,23,24,%r1		;!  r1 = lo(100000000 x r)
+	add	%r1,%r25,%r1		;!  r1 = lo(100000001 x r)
+	shd	%r29,%r25,24,%r25	;! r25 = hi(100000000 x r)
+	addc	%r25,%r29,%r25		;! r25 = hi(100000001 x r)
+;! r in r25,,r1
+	zdep	%r1,15,16,%r29
+	add	%r29,%r1,%r29
+	shd	%r25,%r1,16,%r1
+	addc	%r1,%r25,%r1
+;! r in r1,,r29
+	sh2add	%r29,%r26,%r0		;!  r0 = lo(1000 x r) + dividend
+	shd	%r1,%r29,30,%r29	;! r29 = hi(1000 x r)
+	addc	%r29,%r0,%r29
+	bv	%r0(ret)
+	extru	%r29,28,29,result
+	.exit
+	.procend
+#endif
+
+
+#if defined (L_divU_12) && !defined (SMALL_LIB)
+#undef L_divU_12
+#define dividend %r26
+#define divisor %r25
+#define tmp %r1
+#define result %r29
+#define ret %r31
+	.text
+	.align 4
+	.export	$$divU_12
+$$divU_12:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	sh2add	%r26,%r26,%r29		;! r29 = lo(101 x r)
+	shd	%r0,%r26,30,%r1		;!  r1 = hi(100 x r)
+	addc	%r1,%r0,%r1		;!  r1 = hi(101 x r)
+;! r in r1,,r29
+	zdep	%r29,27,28,%r25		;! r25 = lo(10000 x r)
+	add	%r25,%r29,%r25		;! r25 = lo(10001 x r)
+	shd	%r1,%r29,28,%r29	;! r29 = hi(10000 x r)
+	addc	%r29,%r1,%r29		;! r29 = hi(10001 x r)
+;! r in r29,,r25
+	zdep	%r25,23,24,%r1		;!  r1 = lo(100000000 x r)
+	add	%r1,%r25,%r1		;!  r1 = lo(100000001 x r)
+	shd	%r29,%r25,24,%r25	;! r25 = hi(100000000 x r)
+	addc	%r25,%r29,%r25		;! r25 = hi(100000001 x r)
+;! r in r25,,r1
+	zdep	%r1,15,16,%r29
+	add	%r29,%r1,%r29
+	shd	%r25,%r1,16,%r1
+	addc	%r1,%r25,%r1
+;! r in r1,,r29
+	sh1add	%r29,%r26,%r0		;!  r0 = lo(10 x r) + dividend
+	shd	%r1,%r29,31,%r29	;! r29 = hi(10 x r)
+	addc	%r29,%r0,%r29
+	bv	%r0(ret)
+	extru	%r29,28,29,result
+	.exit
+	.procend
+#endif
+
+
+#ifdef L_divU_3
+	.text
+	.align	4
+	.export	$$divU_3
+$$divU_3:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		3,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_5
+	.text
+	.align	4
+	.export	$$divU_5
+$$divU_5:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		5,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_6
+	.text
+	.align	4
+	.export	$$divU_6
+$$divU_6:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		6,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_7
+	.text
+	.align	4
+	.export	$$divU_7
+$$divU_7:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		7,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_9
+	.text
+	.align	4
+	.export	$$divU_9
+$$divU_9:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		9,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_10
+	.text
+	.align	4
+	.export	$$divU_10
+$$divU_10:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		10,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_12
+	.text
+	.align	4
+	.export	$$divU_12
+$$divU_12:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		12,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_14
+	.text
+	.align	4
+	.export	$$divU_14
+$$divU_14:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		14,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divU_15
+	.text
+	.align	4
+	.export	$$divU_15
+$$divU_15:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divU
+	ldi		15,%r25
+	.exit
+	.procend
+	.import		$$divU,MILLICODE
+#endif
+
+#ifdef L_divI_3
+	.text
+	.align	4
+	.export	$$divI_3
+$$divI_3:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		3,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_5
+	.text
+	.align	4
+	.export	$$divI_5
+$$divI_5:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		5,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_6
+	.text
+	.align	4
+	.export	$$divI_6
+$$divI_6:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		6,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_7
+	.text
+	.align	4
+	.export	$$divI_7
+$$divI_7:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		7,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_9
+	.text
+	.align	4
+	.export	$$divI_9
+$$divI_9:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		9,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_10
+	.text
+	.align	4
+	.export	$$divI_10
+$$divI_10:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		10,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_12
+	.text
+	.align	4
+	.export	$$divI_12
+$$divI_12:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		12,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_14
+	.text
+	.align	4
+	.export	$$divI_14
+$$divI_14:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		14,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+#ifdef L_divI_15
+	.text
+	.align	4
+	.export	$$divI_15
+$$divI_15:
+	.proc
+	.callinfo	frame=0,no_calls
+	.entry
+	b		$$divI
+	ldi		15,%r25
+	.exit
+	.procend
+	.import		$$divI,MILLICODE
+#endif
+
+$$sh_func_adrs:       
+        .proc
+        .callinfo NO_CALLS
+        .export $$sh_func_adrs,MILLICODE
+        ldo     0(%r26),%ret1
+        dep     %r0,30,1,%r26
+        probew  (%r26),%r31,%r22
+        extru,= %r22,31,1,%r22
+        ldws    0(%r26),%ret1
+        bv,n    %r0(%r31)
+        .procend


From - Thu Nov 08 21:12:51 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] GCC 2.96 merge complete (I hope)
Date: 07 Jul 2000 22:12:48 -0400
Organization: Linuxcare, Inc.
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To: parisc-linux@thepuffingroup.com
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Okay, the merge of p.e.h.c's gcc module to current 2.96 is complete,
modulo things that may have slipped through the cracks due to CVS
being stupid.

As mentioned in the previous message, the old stuff is on the
'gcc-2_9-hppa-20000707' branch tag if you care to look at it.

We now also have a 'GNU_DIST' vendor branch which is intended to be
used to track the mainline GCC tree.  So, nice diffs can now be
obtained by running 'cvs rdiff -u -r GNU_DIST -r HEAD gcc'.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: "Brian S. Julin" <bri@mojo.calyx.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] e2fsprogs available
Date: Sun, 9 Jul 2000 14:42:59 -0400 (EDT)
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Cc: parisc-linux@thepuffingroup.com
To: Matt Taggart <taggart@carmen.fc.hp.com>
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On Fri, 30 Jun 2000, Matt Taggart wrote:
> Using the above I was able to natively partition, mke2fs, mount, create files, 
> execute files, umount, and fsck using the scsi disk in my 712.

Verified to work on a 715/64 with the LASI/SCSI driver.  Except for the
mounting part, as I don't have a mount binary yet...

Also, in case anyone was wondering, the cross-compiler problems
from ALPHA seem to have been fixed.  I've booted an ALPHA-compiled kernel.

I tried compiling a native binutils, but all the binaries cause
a page fault when run, so I must be missing a configure flag or something.
(Why is it that configure --help just never seems to do the trick :(  )
Would it be a problem that I installed glibc in the nfsroot tree and
then ln'd my i386's /usr/local/hppa1.1-linux/lib to there?

GCC won't build a native, complains about a missing nss symbol.

--
Brian S. Julin



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From: willy@thepuffingroup.com
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] e2fsprogs available
Date: Sun, 9 Jul 2000 14:06:57 -0400
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To: "Brian S. Julin" <bri@mojo.calyx.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:7521

On Sun, Jul 09, 2000 at 02:42:59PM -0400, Brian S. Julin wrote:
> Verified to work on a 715/64 with the LASI/SCSI driver.  Except for the
> mounting part, as I don't have a mount binary yet...

you can use -mount, it's a sash builtin.

> Also, in case anyone was wondering, the cross-compiler problems
> from ALPHA seem to have been fixed.  I've booted an ALPHA-compiled kernel.

excellent, that wasn't tested...

> I tried compiling a native binutils, but all the binaries cause
> a page fault when run, so I must be missing a configure flag or something.
> (Why is it that configure --help just never seems to do the trick :(  )
> Would it be a problem that I installed glibc in the nfsroot tree and
> then ln'd my i386's /usr/local/hppa1.1-linux/lib to there?
> 
> GCC won't build a native, complains about a missing nss symbol.

tried --static-nss?

-- 
The Sex Pistols were revolutionaries.  The Bay City Rollers weren't.


From - Thu Nov 08 21:12:51 2018
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From: willy@thepuffingroup.com
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] problems with gcc 2.96
Date: Sun, 9 Jul 2000 15:00:24 -0400
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most people will need to run contrib/gcc_update in order to sort out
dependencies.  i did.  but then i get into:

$ rm -rf *
$ ../gcc/configure --target=hppa1.1-linux --prefix=/home/willy/parisc --host=i386-linux --disable-nls
[...]
/home/willy/parisc/gcc-build/gcc/xgcc -B/home/willy/parisc/gcc-build/gcc/ -B/home/willy/parisc/hppa1.1-linux/bin/ -c -g -O2 -I. -I../../../gcc/libio -D_IO_MTSAFE_IO ../../../gcc/libio/iogetline.c
In file included from ../../../gcc/libio/libio.h:166,
                 from ../../../gcc/libio/iolibio.h:1,
                 from ../../../gcc/libio/libioP.h:47,
                 from ../../../gcc/libio/iogetline.c:26:
/home/willy/parisc/hppa1.1-linux/include/bits/stdio-lock.h:29:2: #error libio needs recursive mutexes for _IO_MTSAFE_IO
make[1]: *** [iogetline.o] Error 1

dhd, you must have solved this already?

-- 
The Sex Pistols were revolutionaries.  The Bay City Rollers weren't.


From - Thu Nov 08 21:12:51 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] problems with gcc 2.96
Date: 10 Jul 2000 10:00:32 -0400
Organization: Linuxcare, Inc.
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Cc: parisc-linux@thepuffingroup.com
To: Alan Modra <alan@linuxcare.com.au>
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willy@thepuffingroup.com writes:

> On Mon, Jul 10, 2000 at 10:06:06AM +1000, Alan Modra wrote:
> > On Sun, 9 Jul 2000 willy@thepuffingroup.com wrote:
> > 
> > > /home/willy/parisc/hppa1.1-linux/include/bits/stdio-lock.h:29:2: #error libio needs recursive mutexes for _IO_MTSAFE_IO
> > > make[1]: *** [iogetline.o] Error 1
> > > 
> > > dhd, you must have solved this already?
> > 
> > Errm, unless your glibc versions differ.  I did a merge on June 10.  Ducks
> > for cover.
> 
> I spoke to dhd last night and apparently the solution is to
> --disable-multilib for gcc.  i'm just trying it now and it appears to
> get a lot further.  time to update the recipe, i guess.

I've already told willy this, but this is due to the C++ support.
Configure with --enable-languages=c for the time being until it's sorted.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


From - Thu Nov 08 21:12:52 2018
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Path: news.gmane.org!not-for-mail
From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] e2fsprogs available
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Cc: Matt Taggart <taggart@carmen.fc.hp.com>, parisc-linux@thepuffingroup.com
To: "Brian S. Julin" <bri@mojo.calyx.net>
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"Brian S. Julin" <bri@mojo.calyx.net> writes:

> Also, in case anyone was wondering, the cross-compiler problems
> from ALPHA seem to have been fixed.  I've booted an ALPHA-compiled kernel.

Cool.

> GCC won't build a native, complains about a missing nss symbol.

This is well-known glibc lossage.  You need to confiugre glibc with
--enable-static-nss, and then every binary that uses NSS must be
linked with '-lc -lnss_files -lnss_dns -lresolv' (in that order).

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] problems with gcc 2.96
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David Huggins-Daines <dhd@linuxcare.com> writes:

> I've already told willy this, but this is due to the C++ support.
> Configure with --enable-languages=c for the time being until it's sorted.

Ah, sorry, it happens if you configure glibc without linuxthreads
support (because, then, you have no spinlocks, obviously).  It seems
that we've already got the appropriate locking primitives
there... trying it now.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] problems with gcc 2.96
Date: Tue, 11 Jul 2000 00:38:58 +1000 (EST)
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On 10 Jul 2000, David Huggins-Daines wrote:

> David Huggins-Daines <dhd@linuxcare.com> writes:
> 
> > I've already told willy this, but this is due to the C++ support.
> > Configure with --enable-languages=c for the time being until it's sorted.
> 
> Ah, sorry, it happens if you configure glibc without linuxthreads
> support (because, then, you have no spinlocks, obviously).  It seems
> that we've already got the appropriate locking primitives
> there... trying it now.

Yeah, I got enthusiastic about implementing linuxthreads, and put in
support for parisc style spinlocks using ldcw (Load and Clear Word).
We need to grab a lock by clearing it so the locks need to be initialised
to non-zero, which is exactly opposite to other glibc spinlocks.  My
enthusiasm waned when I hit a missing syscall - forget what it was now.

-- 
Linuxcare.  Support for the Revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] problems with gcc 2.96
Date: 10 Jul 2000 10:59:35 -0400
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Alan Modra <alan@linuxcare.com.au> writes:

> Yeah, I got enthusiastic about implementing linuxthreads, and put in
> support for parisc style spinlocks using ldcw (Load and Clear Word).
> We need to grab a lock by clearing it so the locks need to be initialised
> to non-zero, which is exactly opposite to other glibc spinlocks.  My
> enthusiasm waned when I hit a missing syscall - forget what it was now.

glibc doesn't really want to compile with linuxthreads for me -
something breaks in the way errno is handled and I get "undefined
reference to errno" when linking.

Jes says we don't really want to mess with that stuff until we have
shared libs working, and I'm inclined to trust him on that :-)

I guess for now we can just ignore libstdc++ and friends...

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: alan@lxorguk.ukuu.org.uk (Alan Cox)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] GCC and static branch prediction
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Xref: news.gmane.org gmane.linux.ports.parisc:7528

>    A few of us were discussing recently a way to take advantage of static
> branch prediction in the PA-RISC architecture. The problem is that there
> is no ANSI C construct for specifying whether a branch is likely taken,
> or likely not taken.

We already sort of do this for the dynamic branch predictions. The gcc
code generator writes faster code for one path of an if/else in general
anyway. So you just get the pa-risc back end to output the right assumptions.

I'd start by walking though


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 64-bit compiler
Date: 10 Jul 2000 17:20:11 -0400
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Hi,

I've just checked in the requisite configuration bits (and fixed a
buglet in BFD) to make it possible to build a 64-bit toolchain.  As
expected, merging forward to 2.96 made this a lot easier.

I have no idea whether it generates correct binaries or not, of course.

To try it out, this short recipe should do:

mkdir binutils-64-build && cd binutils-64-build
../binutils-2.10/configure --disable-nls --target=hppa64-linux
make
make install

cd ..
mkdir gcc-64-build && cd gcc-64-build
../gcc/configure --target=hppa64-linux --enable-languages=c \
        --disable-nls --disable-multilib
make
make install

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Architecture string change
Date: 10 Jul 2000 17:45:14 -0400
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Hi,

In keeping with the way things are done on other Linux platforms, I
would like us to start using the following architecture strings for
configuring our compilers:

32-bit userland and kernel, PA1.1: hppa-linux
64-bit kernel, PA2.0:              hppa64-linux

I guess this means that I volunteer to update the recipes on the
website :-)

config.guess will return a more detailed string, such as
'hppa2.0-unknown-linux-gnu', but these should be the canonical,
lowest-common-denominator strings.  In particular, we should revise
the recipes and such to use them and configure dpkg-architecture to
set DEB_GNU_HOST_ARCH to 'hppa-linux'.

I have not been able to get a solid answer out of anyone regarding
whether it is possible or desireable to use 'parisc-' instead of
'hppa-', so I will leave it as 'hppa' for the time being.  It is easy
enough to make 'parisc' an alias for 'hppa' if we want to.

Some pros and cons of using 'parisc' vs. 'hppa':

 * Pro: hppa*-linux targets produce very different 32-bit object code,
   as well as different 64-bit assembly code, so it may be beneficial
   to distinguish them from other PA-RISC targets.

 * Pro: I'm told that people at HP want to use 'parisc'.  Could those
   people please stand up :-)

 * Con: config.guess [1] will presumably return hppa*-*-linux-gnu.

 * Con: Every other operating system on PA-RISC uses hppa*-*-*.

(I know there are some more but I can't think of them right now)

Please remember that, now that we are entering userspace, any
decisions of this sort that we make are going to stick with us
forever. [2]

[1] Which I can't actually run since our page fault handler is broken:

> /bin/sh config.guess

do_page_fault() pid=8 command='sh'
                                  
Bad Address (null pointer deref?): Code=15 regs=c7e5c248 (Addr=00000001)
                                                                        
PSW  : 0004f80b  GR 1 : 00090350  GR 2 : 00007f4f  GR 3 : 00092e28  
GR 4 : 00000000  GR 5 : 00092b50  GR 6 : 00000019  GR 7 : 0000000e  
GR 8 : 00000001  GR 9 : 00092e28  GR10 : ffffffff  GR11 : 200206e2  
GR12 : 0000000a  GR13 : 00094b50  GR14 : 0007f621  GR15 : 00000000  
GR16 : 00094f0c  GR17 : 00000000  GR18 : 0000000e  GR19 : 00000001  
GR20 : 40100868  GR21 : 00000001  GR22 : 00000000  GR23 : 40100030  
GR24 : 40100848  GR25 : 00000020  GR26 : 40100010  GR27 : 0008f350  
GR28 : 40100850  GR29 : 00000001  GR30 : 20020880  GR31 : 000171d7  
SR0  : 00002001  SR1  : 00002001  SR2  : 00000100  SR3  : 00002001  
SR4  : 00002001  SR5  : 00002001  SR6  : 00002001  SR7  : 00002001  
                                                                    
IASQ : 00002001 00002001 IAOQ : 00007f53 00007f57
 IIR : 0e7c1280 ISR : 00002001 IOR : 00000001    

[2] A good example of this is how the soname for glibc is
'libc.so.6.1' on Linux/alpha instead of 'libc.so.6' due to a screwup
in an early Red Hat distribution...

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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David Huggins-Daines wrote:
>  * Pro: I'm told that people at HP want to use 'parisc'.  Could those
>    people please stand up :-)

I'm one of them. But I'm not religous about it.

Just seems goofy to have "hp" in the name.
IMHO, It'd be comparable to using sunsparc or decalpha.

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Subject: Re: [parisc-linux] Architecture string change
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> 
> David Huggins-Daines wrote:
> >  * Pro: I'm told that people at HP want to use 'parisc'.  Could those
> >    people please stand up :-)
> 
> I'm one of them. But I'm not religous about it.
> 
> Just seems goofy to have "hp" in the name.
> IMHO, It'd be comparable to using sunsparc or decalpha.

If it is going to change, why not just 'pa', for precision architecture.
Everbody knows it is risc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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David Huggins-Daines wrote:
> Hi,
> 
> I've just checked in the requisite configuration bits (and fixed a
> buglet in BFD) to make it possible to build a 64-bit toolchain.  As
> expected, merging forward to 2.96 made this a lot easier.
> 
> I have no idea whether it generates correct binaries or not, of course.
> 
> To try it out, this short recipe should do:

David,
The short recipe you included wasn't enough for me...
Could you post required changes for the following recipe?
(I call it recipe.puffin64)

This is based off of what Matt sent me a while back for 32-bit builds.

thanks,
grant

#!/bin/sh -x
# build the xcompiler and glibc recipe
# 5/2000
# willy, pb, taggart, others

# make sure we don't get anything from any existing $PREFIX/bin
PATH=/usr/local/bin:/usr/bin:/bin

# Top level
TOP=/linux/grundler

# Where your checked-out CVS sources live
SRC=$TOP

# Where your build sub-dirs go
BUILD=$TOP/xc-build64

# Where to put the final bits, needs to be owned by the
# current user(to avoid sudo games)
PREFIX=/opt/puffin64

# Requirements
# o $SRC has binutils-2.10 gcc checked out
# o $PREFIX/include comes from pehc:~ftp/pub/parisc/src/include.tar.gz
cd $TOP
cvs -z3 update -d binutils-2.10 gcc

# Copy include/asm and include/linux to $PREFIX/include
if [ ! -d $SRC/include ]
then
	echo  Please untar pehc:~ftp/pub/parisc/src/include.tar.gz in $PREFIX/include first!
	exit 1
fi

cp -r $SRC/linux-2.3/include/asm $PREFIX/include
cp -r $SRC/linux-2.3/include/linux $PREFIX/include


# Clean out and/or create some things
rm -fr $BUILD/build-gcc $BUILD/build-binutils
mkdir -p $BUILD/build-gcc $BUILD/build-binutils

### binutils
cd $BUILD/build-binutils
# $SRC/binutils-2.10/configure --enable-64-bit-bfd --target=hppa64-linux --prefix=$PREFIX --disable-nls
$SRC/binutils-2.10/configure --target=hppa64-linux --prefix=$PREFIX --disable-nls
make
make install

# Prepend $PREFIX/bin to the path to get the right binutils
PATH=$PREFIX/bin:$PATH

cd $BUILD/build-gcc && rm -r *
$SRC/gcc/configure \
	--target=hppa64-linux \
	--prefix=$PREFIX \
	--disable-nls \
	--without-libc

make LIBGCC2_INCLUDES=-I$PREFIX/include LANGUAGES=c
make install


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From: Bdale Garbee <bdale@gag.com>
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Subject: Re: [parisc-linux] Architecture string change
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In article <87og45bqxh.fsf@linuxcare.com> you wrote:

> Some pros and cons of using 'parisc' vs. 'hppa':

I noted the last time I looked that all of HP's web-based documentation on 
the architecture seems to use 'parisc' pretty religiously.  

When I asked about the apparent confusion a while back, I got the very
strong indication that the parisc-linux community wanted to use 'parisc' for
the arhitecture string in Debian space... so that's the direction I've been
heading (mailing list, web pages, etc).  If we want to change, I can get it
done (no messages have passed the debian-parisc list yet despite over 50
subscribers, for example), but the sooner the better.

I have no emotional loading on this one, I just want to know the answer.  :-)

We *must* decide this once and for all *very* soon.  Pretty please.

Bdale


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From: Corne Beerse <beerse@ats.nld.alcatel.nl>
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Subject: Re: [parisc-linux] Architecture string change
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David Huggins-Daines wrote:
> 
> Hi,
> 
> In keeping with the way things are done on other Linux platforms, I
> would like us to start using the following architecture strings for
> configuring our compilers:
> 
> 32-bit userland and kernel, PA1.1: hppa-linux
> 64-bit kernel, PA2.0:              hppa64-linux
> 
> I guess this means that I volunteer to update the recipes on the
> website :-)
> 
> config.guess will return a more detailed string, such as
> 'hppa2.0-unknown-linux-gnu', but these should be the canonical,
> lowest-common-denominator strings.  In particular, we should revise
> the recipes and such to use them and configure dpkg-architecture to
> set DEB_GNU_HOST_ARCH to 'hppa-linux'.
> 
> I have not been able to get a solid answer out of anyone regarding
> whether it is possible or desireable to use 'parisc-' instead of
> 'hppa-', so I will leave it as 'hppa' for the time being.  It is easy
> enough to make 'parisc' an alias for 'hppa' if we want to.
> 
> Some pros and cons of using 'parisc' vs. 'hppa':
> 
>  * Pro: hppa*-linux targets produce very different 32-bit object code,
>    as well as different 64-bit assembly code, so it may be beneficial
>    to distinguish them from other PA-RISC targets.
> 
>  * Pro: I'm told that people at HP want to use 'parisc'.  Could those
>    people please stand up :-)
> 
>  * Con: config.guess [1] will presumably return hppa*-*-linux-gnu.
> 
>  * Con: Every other operating system on PA-RISC uses hppa*-*-*.
> 
> (I know there are some more but I can't think of them right now)
> 
> Please remember that, now that we are entering userspace, any
> decisions of this sort that we make are going to stick with us
> forever. [2]
> 
>>>>>> details on [1] and [2] removed <<<<<<<<<<<<<

My 2 cents on this architecture string:
I see the string contains 4 fields. For other linux implementations, what do
these fields mean? From what I see of it, is it:
<processorfamily>-<supplier>-<operatingsystem>-<???> ??

For the processorfamily, I would say 'parisk', without the HP in the name.
That's for the next field: it is an HP processor.

Compare it with the use on other platforms: For the base PC, it would be
i386-intel-linux-gnu or i386-amd-linux-gnu if there is difference between
the 2 i386 processors between intel and linux which makes a difference in
the configuration. If there is no difference between intel and amd at this
level, leave the supplier as unknown. For the 80386 type processors, there
is no difference to linux, hence: i386-unknown-linux-gnu. For the i686 type
processors it would be i686-intel-linux-gnu for Intels pentiumII and
i686-amd-linux-gnu for the amds K6.

How is it done on other platforms as the sparc, alpha and i386?



CB



-- 
RAM = Rarely Adequate Memory
Corne' Beerse					| Alcatel Telecom Nederland
mailto:beerse@ats.nld.alcatel.nl		| Postbus 3292
talkto:+31(70)3079108 faxto:+31(70)3079191	| NL-2280 GG  Rijswijk


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] Architecture string change
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Xref: news.gmane.org gmane.linux.ports.parisc:7536

Bdale Garbee <bdale@gag.com> writes:

> When I asked about the apparent confusion a while back, I got the very
> strong indication that the parisc-linux community wanted to use 'parisc' for
> the arhitecture string in Debian space... so that's the direction I've been

Well, there's no reason why DEB_HOST_GNU_CPU has to be the same as
DEB_HOST_ARCH.  Although I think I've seen a few debian/rules files
(including one of my own at one point) that do things like this:

build:
        ./configure --host=$(DEB_HOST_ARCH)-linux

Just to make it clear, this discussion is about DEB_HOST_GNU_CPU,
i.e. the CPU part of the string returned by config.guess and accepted
by configure, autoconf, and automake.

> I have no emotional loading on this one, I just want to know the answer.  :-)

I'm a bit biased towards 'hppa' just because it is the currently
accepted convention with all the GNU software out there.  Also it will
be a bit of a hack to config.guess to return parisc*, because we'll
end up only doing it on Linux.  Also, if we go with 'parisc', then:

(a) We need to send patches for config.guess and config.sub to the
    automake and autoconf people NOW.
(b) We must be prepared to manually update config.guess and config.sub
    in basically every piece of software we build. [1]

> We *must* decide this once and for all *very* soon.  Pretty please.

Yup :-)

[1] On Alpha, there continue to be annoying problems when building GNU
software because config.guess (which is part of autoconf) knew about
the PCA56 and EV6 subarchitectures long before config.sub (which is
part of automake) did, and thus configuring would always fail unless
--host=alpha-linux (or some other recognizable architecture string)
was specified.  Because the maintainer has to manually update
config.guess and config.sub, lots of packages still have old versions
that break...

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Don't rebuild gcc/glibc yet
Date: 11 Jul 2000 11:06:37 -0400
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Hi,

glibc is currently a bit borken, probably because I foolishly tried to
enable 'long double' support in gcc:

/home/dhd/src/parisc/glibc-build/libc.a(vfscanf.o): In function `_IO_vfscanf':
/home/dhd/src/parisc/glibc/stdio-common/vfscanf.c:1582: undefined reference to `_U_Qfneg'
/home/dhd/src/parisc/glibc-build/libc.a(strtold.o): In function `__strtold_internal':
/home/dhd/src/parisc/glibc/stdlib/strtod.c:532: undefined reference to `_U_Qfcnvff_sgl_to_quad'

Is the long double stuff in gcc supposed to work at all?  (i.e. are
there definitions of those functions anywhere?)  I get 'sizeof(long
double) == 0' when configuring glibc, but strangely enough it still
wants to use them...

For now I'll back out that bit in gcc.  Sorry about this.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Jeffrey A Law <law@cygnus.com>
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Subject: Re: [parisc-linux] Don't rebuild gcc/glibc yet
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  In message <87em50btaa.fsf@linuxcare.com>you write:
 > Is the long double stuff in gcc supposed to work at all? 
Yes.

  > (i.e. are there definitions of those functions anywhere?) 
I believe they're in libc.a or milli.a on hpux systems.

  > I get 'sizeof(long double) == 0' when configuring glibc, but
  . strangely enough it still wants to use them...
You should never get sizeof long double == 0 -- if long doubles are
not supported, they should be treated like doubles.
jeff


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Subject: Re: [hppa-linux] Linux Kernel and PA-RISC
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>
>
> My understanding of PA equivalent:
>
 ...
> 	
> 	One other question is whats happening to space registers when
> 	you are running in real mode ?
>

  In real mode the space register field of the load/store/cache instructions
  is ignored so that the effective address is just the 32-bit offset.

  Jason.


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Jeffrey A Law <law@cygnus.com> writes:

>   > (i.e. are there definitions of those functions anywhere?) 
> I believe they're in libc.a or milli.a on hpux systems.

Yes, actually, gcc/config/pa/quadlib.c, as I discovered when looking
at the other PA targets.

>   > I get 'sizeof(long double) == 0' when configuring glibc, but
>   . strangely enough it still wants to use them...
> You should never get sizeof long double == 0 -- if long doubles are
> not supported, they should be treated like doubles.

Yeah, I realized why that is, it's because glibc's configure.in does:

dnl check for the size of 'long double'.
AC_CHECK_SIZEOF(long double, 0)

Which makes sense :-)

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Jeffrey A Law <law@cygnus.com> writes:

>   In message <878zv8brly.fsf@linuxcare.com>you write:
>   > Yes, actually, gcc/config/pa/quadlib.c, as I discovered when looking
>   > at the other PA targets.
> Ah.  Actually quadlib.c is just a front-end to routines provided
> elsewhere by the hpux libraries.

Right, I found that out the hard way :(

I suspect that I'll just turn it off for Linux for the time being, as
I don't know how difficult it will be to reimplement those, and
whether there is a good reason to or not.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Okay, my brief flirtation with 'long double' support is over, and GCC
appears to compile and work again for 32- and 64-bit targets (i.e. it
compiles, and it builds glibc).

Now would be a good time to update your CVS trees.

Sorry about that folks.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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One more vote for 'parisc'.  Is anyone counting?

I haven't seen good, clear reasoning yet as to why 'parisc' does not
adequately fit the requirements and 'hppa' does.

Bdale said:
> ... no messages have passed the debian-parisc list yet despite over 50
> subscribers ...

Surely you exaggerate, I see _ten_ messages in my debian-parisc box, not
including the subscription confirmation emails!

But seriously, I would guess that most of the subscribers are userland
hackers, not kernel people ... or, like me, aren't hackers at all,
they're just sad lonely people who own an HP box and like being on
mailing lists.  =)

When the announcement is made "okay, userland works and we're not going
to change anything any more, at least not without big huge announcements"
and people can start working with gusto on building packages, I'm sure
the list traffic will go up considerably.

We're just waiting for you to show us the way, in other words.  =)

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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> 
> One more vote for 'parisc'.  Is anyone counting?
> 
> I haven't seen good, clear reasoning yet as to why 'parisc' does not
> adequately fit the requirements and 'hppa' does.

>From an early version of the HP Precision Architecture and Instruction Set
Reference Manual, 

  HP Precision Architecture is the framework for Hewlett-Packard's HP3000/900
  and HP9000/800 computer systems.  It is an extension of the architecture
  principles of the Reduced Instruction Set Computer(RISC).

The main point is that the Precision Architecture is an extension to the RISC
concept.  The parisc label implies that it is RISC and not an extension.

>From a practical standpoint, I wouldn't like to see hppa dropped.  Thus,
I vote for no change.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] recipe.puffin
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Hi all,
Appended is an updated script I run to build binutils/gcc
on an i686-linux host. Please post corrections...

enjoy,
grant

#!/bin/sh -ex
# build the xcompiler and glibc recipe
# 5/2000
# willy, pb, taggart, grundler, others

# make sure we don't get anything from any existing $PREFIX/bin
PATH=/usr/local/bin:/usr/bin:/bin

# Top level
TOP=/linux/grundler

# Where your checked-out CVS sources live
SRC=$TOP

# Where your build sub-dirs go
BUILD=$TOP/xc-build

# Where to put the final bits, needs to be owned by the
# current user(to avoid sudo games)
PREFIX=/opt/puffin

# narrow or wide mode bits?
TARGET=hppa-linux

set -- `getopt uwrRp: $*`

while [ $# -gt 0 ]
do
	case $1 in
	-u) cd $TOP
	    cvs -z3 update -d binutils-2.10 gcc glibc
	    ;;
	-R) rm -fr $BUILD/build-gcc $BUILD/build-binutils
	    ;;
	-r) rm -rf $PREFIX/*
	    ;;
	-w) TARGET=hppa64-linux
	    BUILD=${BUILD}64
	    PREFIX=${PREFIX}64
	    ;;
	-p) if [ -d $2 ]
	    then
		PREFIX=$2
	        shift
	    else
		echo "-p $2 is not a directory."
		exit 2
	    fi
	    ;;
	--)
	    ;;

	*)  set +x
	    echo "Invalid parameter: $1"
	    echo "Usage: recipe.puffin [ -w -u -r -p <prefix> ]"
	    echo "	-w build 64-bit (hppa64-linux) instead of hppa-linux"
	    echo "	-u update binutils-2.10 and gcc from CVS"
	    echo "	-r delete existing file in install directory"
	    echo "	-R delete existing build directories"
	    echo "	-p <prefix> install destination (default: /opt/puffin)"
	    exit 1
	    ;;
	esac
        shift
done

# Requirements
# o $SRC has binutils-2.10 gcc checked out
# o $PREFIX/include comes from pehc:~ftp/pub/parisc/src/include.tar.gz

# Copy include/asm and include/linux to $PREFIX/include
if [ ! -d $SRC/include ]
then
	echo  Please untar pehc:~ftp/pub/parisc/src/include.tar.gz in $PREFIX/include first!
	exit 1
fi

cp -r $SRC/linux-2.3/include/asm $PREFIX/include
cp -r $SRC/linux-2.3/include/linux $PREFIX/include


# make sure BUILD dirs exist
mkdir -p $BUILD/build-gcc $BUILD/build-binutils

### binutils
cd $BUILD/build-binutils
# $SRC/binutils-2.10/configure --enable-64-bit-bfd --target=$TARGET --prefix=$PREFIX --disable-nls
$SRC/binutils-2.10/configure --target=$TARGET --prefix=$PREFIX --disable-nls
make
make install

# Prepend $PREFIX/bin to the path to get the right binutils
PATH=$PREFIX/bin:$PATH

cd $BUILD/build-gcc
$SRC/gcc/configure --target=$TARGET --prefix=$PREFIX --disable-nls \
	--without-libc

make LIBGCC2_INCLUDES=-I$PREFIX/include LANGUAGES=c
make install


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] Internal compiler error
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Xref: news.gmane.org gmane.linux.ports.parisc:7546

Dave (dhd),
Since you expressed an interest in compiler bugs:

...
make[1]: Leaving directory `/linux/grundler/linux-2.3/arch/parisc/hpux'
hppa-linux-gcc -I/linux/grundler/linux-2.3/include  -D__KERNEL__ -I/linux/grundler/linux-2.3/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -ffunction-sections -D__linux__ -pipe -fno-strength-reduce  -DUTS_MACHINE='"parisc"' -c -o init/version.o init/version.c
dino.c: In function `dino_common_init':
dino.c:675: incompatible type for argument 2 of `list_add'
dino.c:675: Tree check: expected class 't', have 'x' (error_mark)
dino.c:675: Internal compiler error in `expand_inline_function', at integrate.c:678
Please submit a full bug report.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[3]: *** [dino.o] Error 1
make[3]: Leaving directory `/linux/grundler/linux-2.3/drivers/gsc'
...

I'm changing code in several files in order to build an I/O tree of hp_devices
much like pci does...the problem above was due to one of my changes:

...
STATIC struct list_head dino_list;
...

        list_add(&dino_dev->dino_hba.hba_dev->global_list, dino_list);


Missing a '&' in front of dino_list and the compiler really
didn't like that. I don't have a big problem with the compiler
"oops"ing here since it correctly identified the problem.

cheers,
grant


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Subject: Re: [parisc-linux] Internal compiler error
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In-Reply-To: <200007121826.LAA14363@milano.cup.hp.com> from "Grant Grundler" at Jul 12, 2000 11:26:37 am
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Xref: news.gmane.org gmane.linux.ports.parisc:7547

Grant,

Is this patch in your tree?

2000-06-26  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

        * c-typeck.c (digest_init): Return error_mark_node node when
	TREE_TYPE (init)  == error_mark_node.

The problem looks similar to the one the above patch addressed.

Dave (jda)

> 
> Dave (dhd),
> Since you expressed an interest in compiler bugs:
> 
> ...
> make[1]: Leaving directory `/linux/grundler/linux-2.3/arch/parisc/hpux'
> hppa-linux-gcc -I/linux/grundler/linux-2.3/include  -D__KERNEL__ -I/linux/grundler/linux-2.3/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -ffunction-sections -D__linux__ -pipe -fno-strength-reduce  -DUTS_MACHINE='"parisc"' -c -o init/version.o init/version.c
> dino.c: In function `dino_common_init':
> dino.c:675: incompatible type for argument 2 of `list_add'
> dino.c:675: Tree check: expected class 't', have 'x' (error_mark)
> dino.c:675: Internal compiler error in `expand_inline_function', at integrate.c:678
> Please submit a full bug report.
> See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
> make[3]: *** [dino.o] Error 1
> make[3]: Leaving directory `/linux/grundler/linux-2.3/drivers/gsc'
> ...
> 
> I'm changing code in several files in order to build an I/O tree of hp_devices
> much like pci does...the problem above was due to one of my changes:
> 
> ...
> STATIC struct list_head dino_list;
> ...
> 
>         list_add(&dino_dev->dino_hba.hba_dev->global_list, dino_list);
> 
> 
> Missing a '&' in front of dino_list and the compiler really
> didn't like that. I don't have a big problem with the compiler
> "oops"ing here since it correctly identified the problem.
> 
> cheers,
> grant
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Grant Grundler <grundler@cup.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:7548

"John David Anglin" wrote:
> Grant,
> 
> Is this patch in your tree?

Dave (jda),

> 2000-06-26  J. David Anglin  <dave@hiauly1.hia.nrc.ca>
> 
>         * c-typeck.c (digest_init): Return error_mark_node node when
> 	TREE_TYPE (init)  == error_mark_node.
> 
> The problem looks similar to the one the above patch addressed.

I couldn't find "Return error_mark_node node" string in gcc/gcc/c-typeck.c.

I'm using whatever we have in binutils-2.10 and gcc CVS.
I just rebuilt yesterday (7/11/2000) after dhd was done with
some recent modifications.

thanks,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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Xref: news.gmane.org gmane.linux.ports.parisc:7549

On Wed, Jul 12, 2000 at 12:17:39PM -0700, Grant Grundler wrote:
> "John David Anglin" wrote:
> > Grant,
> > 
> > Is this patch in your tree?
> > 2000-06-26  J. David Anglin  <dave@hiauly1.hia.nrc.ca>
> > 
> >         * c-typeck.c (digest_init): Return error_mark_node node when
> > 	TREE_TYPE (init)  == error_mark_node.
> > 
> > The problem looks similar to the one the above patch addressed.
> 
> I couldn't find "Return error_mark_node node" string in gcc/gcc/c-typeck.c.
> 
> I'm using whatever we have in binutils-2.10 and gcc CVS.
> I just rebuilt yesterday (7/11/2000) after dhd was done with
> some recent modifications.

that's in our tree;

2000-06-26  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

        * c-typeck.c (digest_init): Return error_mark_node node when
        TREE_TYPE (init)  == error_mark_node.

is in gcc/gcc/ChangeLog.  The last comment which isn't ours in ChangeLog
is dated 2000-07-07.  any changes since then which look even remotely
relevant?

-- 
The Sex Pistols were revolutionaries.  The Bay City Rollers weren't.


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From: Ed June <buggz@america.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [hppa-linux] the cvs thingy
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>

Hmm, am I doing this correct ?

$ export CVSROOT=':pserver:anonymous@sod.res.cmu.edu:/home/cvs/hppa'
$ cvs login
(Logging in to anonymous@sod.res.cmu.edu)
CVS password:
$ cvs -z3 checkout hppa-linux
cvs server: cannot find module `hppa-linux' - ignored
cvs [checkout aborted]: cannot expand modules


--

 Ed June

 buggz@america.net
 Linux: An open choice for free people worldwide.




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Xref: news.gmane.org gmane.linux.ports.parisc:7551

> > 2000-06-26  J. David Anglin  <dave@hiauly1.hia.nrc.ca>
> > 
> >         * c-typeck.c (digest_init): Return error_mark_node node when
> > 	TREE_TYPE (init)  == error_mark_node.
> > 
> > The problem looks similar to the one the above patch addressed.
> 
> I couldn't find "Return error_mark_node node" string in gcc/gcc/c-typeck.c.

Wrong search pattern.  The patched code in digest_init looks like

  if (type == error_mark_node
      || init == error_mark_node
      || TREE_TYPE (init)  == error_mark_node)
    return error_mark_node;

This fixed a similar problem where a missing declaration caused the
compiler to crash or produce the tree checking error that you got.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> is in gcc/gcc/ChangeLog.  The last comment which isn't ours in ChangeLog
> is dated 2000-07-07.  any changes since then which look even remotely
> relevant?

Not that I am aware of.

There is a patch related to the alignment of fields that is not installed
because of portability concerns.  Alignments greater than 16 bytes are
not done correctly and may cause the compiler to abort due to a divide
by zero.  This may be important for the linux port.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


From - Thu Nov 08 21:12:54 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problem with malloc(3)/sbrk(2)/brk(2)/something
Date: 12 Jul 2000 15:55:47 -0400
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Hi,

This is a follow-up to my footnote about not being able to run the
'config.guess' shell script with ash (and some other stuff) on our
userland.  Basically I've found a minimal testcase for the problem,
which is that it's not possible to malloc() across a page boundary.

Beware that since we don't have a real page fault handler, this
program will crash your machine.  (Press TOC, and we'll take it from
there :-)

If you turn on debugging assertions in the malloc code you'll see that
it triggers this assertion:

  /* We always land on a page boundary */
  assert(((unsigned long)((char*)top(ar_ptr) + top_size) & (pagesz-1)) == 0);

I don't see sbrk() or brk() failing, so I'm not exactly sure why this
happens.  I suspect they are returning bogus values in this case.  If
someone knows that would be great although I expect to find the
problem soon (I may try to get strace going, since it will be very
useful for other similar problems).

#include <stdlib.h>
#include <stdio.h>

int main()
{
	/* get the first address */
	char *foo = malloc(16);

	/* now try to break a page boundary */
	char *target = (char *) ((unsigned long) (foo + 4095) & ~4095);

	size_t nbytes = target - foo;
	foo = malloc(nbytes);
	return 0;
}

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Paul Bame <bame@noam.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PALO changes
Date: Wed, 12 Jul 2000 15:23:57 -0600
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I've just commited a bunch of PALO changes I have been making on a
branch.  ACTION REQUIRED: none if you're happy with PALO right now.
WARNING: if you don't have or want a tool chain which can produce
user-space executables yet, DON'T get the latest PALO bits.

Changes:
    PALO can make bootable ISO CD images

    A new step was introduced with the program palo/mkbootable.  Look
    at the Makefile or documentation if you need to figure that out.
    Most folks will be able to continue using 'make palo' in their
    linux tree and the mkbootable change will be transparent.

    Many changes to the build process.  PALO no longer uses header files
    from either /usr/src/linux nor the palinux kernel tree, so the
    build, especially for first-time users, should be easier (SEE NEXT
    PARAGRAPH and WARNING above however).  NOTE
    that you must have a real /usr/include/asm and /usr/include/linux
    to build palo -- some Linux distributions don't have this, or have
    it as an optional component.

    PALO ***DEPENDS UPON*** a tool chain which can produce user-space
    executables.  The "how to build a kernel" recipe does not say how
    to produce such a tool chain, so if the recipe's tool chain is
    all you have DON'T UPDATE PALO.
    Note the kernel will soon depend on this too (when we get rid of
    our kernel private copy of libmilli.a).

	If your system is relatively close to Debian 'potato', you
	can grab a suitable cross compiler tarball from
	ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86
	by grabbing xc-20000705.tgz and xc-patch-20000706.tgz

	Until the 0705 cross compiler is superceeded, you'll need
	to change your kernel build to 'make CROSS_COMPILE=hppa1.1-linux- palo'
	if you're using recent kernel sources.


		-Paul Bame


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] Non-bootable kernel problems
Date: Thu, 13 Jul 2000 00:35:33 +0100
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Current cvs kernel source doesn't boot.  Looks like a linker problem
or bits of the kernel loaded in the wrong place to me...

I added the following to the end of net/ipv4/devinet.c:

void check_devinet(void)
{
        printk("**  devinet_sysctl.devinet_root_dir = %p\n", devinet_sysctl.devinet_root_dir);
        printk("**  devinet_sysctl.devinet_root_dir[0].procname = %p\n", devinet_sysctl.devinet_root_dir[0].procname);
        printk("**  devinet_sysctl.devinet_root_dir[0].procname = %s\n", devinet_sysctl.devinet_root_dir[0].procname);
}


and then added a call to check_devinet() to init/main.c() just after
printk(linux_banner).  It should report procname as "net" from the table
in net/ipv4/devinet.c, but:

Linux version 2.3.99-pre8 (rhirst@rhirst.linuxcare.com) (gcc version 2.96.0614) #660 Thu Jul 13 00:21:59 BST 2000
**  devinet_sysctl.devinet_root_dir = c0279814
**  devinet_sysctl.devinet_root_dir[0].procname = c0143228
**  devinet_sysctl.devinet_root_dir[0].procname = Multiply assigned logical unit
pagetable_init


Someone else can pick it up now while I sleep ;-)

Richard



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Hello,

	I am looking for information on the availability of the PA-RISC bits for 
Linux. We have heavy interest in the Financial District at this time.

Dave Deak


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On Wed, Jul 12, 2000 at 03:23:57PM -0600, Paul Bame wrote:
>     PALO ***DEPENDS UPON*** a tool chain which can produce user-space
>     executables.  The "how to build a kernel" recipe does not say how
>     to produce such a tool chain, so if the recipe's tool chain is
>     all you have DON'T UPDATE PALO.
>     Note the kernel will soon depend on this too (when we get rid of
>     our kernel private copy of libmilli.a).

that change went into CVS sometime this week... I haven't heard anyone
cry yet.

-- 
The Sex Pistols were revolutionaries.  The Bay City Rollers weren't.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problem with malloc(3)/sbrk(2)/brk(2)/something
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David Huggins-Daines <dhd@linuxcare.com> writes:

> userland.  Basically I've found a minimal testcase for the problem,
> which is that it's not possible to malloc() across a page boundary.

Oops, sorry, this did not seem to be the actual problem.  It seems
that I may have been running a kernel that was not %r8-clean, or
something similar, because recompiling malloc.c with -ffixed-r8 made
these test cases work :(

However config.guess still doesn't work :( Once I get a working kernel
again I suppose I'll look at that.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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David Huggins-Daines <dhd@linuxcare.com> writes:

> However config.guess still doesn't work :( Once I get a working kernel
> again I suppose I'll look at that.

Okay, fixed.  See parisc-linux-cvs and rebuild your kernels :-)

-- 
David Huggins-Daines - dhd@debian.org


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More info on this one -- and yes it's the old problem come back to
haunt us.

Witness two functions:

    static void * a2(void) {
	return (void *)&devinet_sysctl.devinet_root_dir;
    }
    static void * a3(void) {
	return (void *)&devinet_sysctl;
    }

And their return values:

    a3 c028b22c a2 c0289574

a2 should be c028b574 -- it's off by 0x2000 as Richard noted earlier.
a3() is OK and a2() is broken.

Here's disassembly from vmlinux via objdump:

    c021b27c <a2>:
    c021b27c:       2b 6f 00 00     addil 1e000,dp,%r1
    c021b280:       e8 40 c0 00     bv r0(rp)
    c021b284:       34 3c 2a e9     ldo -a8c(r1),ret0

    c021b288 <a3>:
    c021b288:       2b 6f 00 00     addil 1e000,dp,%r1
    c021b28c:       e8 40 c0 00     bv r0(rp)
    c021b290:       34 3c 24 58     ldo 122c(r1),ret0

The two ldo instructions should be showing a difference of 0x348 -- the
ofset of the member within the struct which I calculated separately.  As
shown, the offsets differ by 0x2348.  This code is hosed.

The object file says:

    00000000 <a2>:
       0:   2b 60 00 00     addil 0,dp,%r1
			    0: R_PARISC_DPREL21L    .data+0x78
       4:   e8 40 c0 00     bv r0(rp)
       8:   34 3c 00 00     ldo 0(r1),ret0
			    8: R_PARISC_DPREL14R    .data+0x3c0
    Disassembly of section .text.a3:

    00000000 <a3>:
       0:   2b 60 00 00     addil 0,dp,%r1
			    0: R_PARISC_DPREL21L    .data+0x78
       4:   e8 40 c0 00     bv r0(rp)
       8:   34 3c 00 00     ldo 0(r1),ret0
			    8: R_PARISC_DPREL14R    .data+0x78

I think this code is right, because 0x3c0-0x78 is 0x348.  I think this
makes this a linker problem.  The off-by-0x2000 is suspicious
since the ldo offset is 14 bits and 2^14 = 0x2000.

For completeness here's what came out of the compiler, which looks cool
to me:

    a1:
	    .PROC
	    .CALLINFO FRAME=0,NO_CALLS
	    .ENTRY
	    addil LR'devinet_sysctl-$global$,%r27
	    bv %r0(%r2)
	    ldw RR'devinet_sysctl-$global$+844(%r1),%r28
	    .EXIT
	    .PROCEND

    a2:
	    .PROC
	    .CALLINFO FRAME=0,NO_CALLS
	    .ENTRY
	    addil LR'devinet_sysctl-$global$,%r27
	    bv %r0(%r2)
	    ldo RR'devinet_sysctl-$global$+840(%r1),%r28


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From: Mike Shaver <shaver@netscape.com>
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Subject: Re: [hppa-linux] the cvs thingy
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Ed June wrote:
> $ cvs -z3 checkout hppa-linux
> cvs server: cannot find module `hppa-linux' - ignored
> cvs [checkout aborted]: cannot expand modules

cvs -z3 co linux

Mike

-- 
9805.70 8095.76


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Subject: Re: [parisc-linux] When
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...did you noticed that the A[45]00 product brief lists Linux as a
supported OS? (you can find it at www.hp.com/go/aclass)

I had a worrying sales type coming to my desk yesterday asking more or
less the same question that Dave did. There are people trying to order
A class servers with Linux preinstalled.

Told him to come back in October. That's about right for the first
somewhat useable Debian release, isn't it?

Gyula


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Subject: Re: [parisc-linux] Non-bootable kernel problems
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Paul Bame <bame@noam.fc.hp.com> writes:

> I think this code is right, because 0x3c0-0x78 is 0x348.  I think this
> makes this a linker problem.  The off-by-0x2000 is suspicious
> since the ldo offset is 14 bits and 2^14 = 0x2000.

It looks like binutils is incorrectly treating those fields as
unsigned, or has an off by one error, or something similar.  The
reason why the version with the extra check and panic() makes it work
is because this makes gcc cleverly load the offset in the struct in
two steps.  note:

devinet.c.1.3:

#warning Take this test out when GCC is fixed
	if ((unsigned)&devinet_sysctl.devinet_root_dir <= (unsigned)&devinet_sysctl.devinet_vars) {
		panic(__FILE__ ": probable gcc bug");
	}
	devinet_sysctl.sysctl_header =
		register_sysctl_table(devinet_sysctl.devinet_root_dir, 0);

devinet.s.1.3:

	addil LR'devinet_sysctl-$global$,%r27
	ldo RR'devinet_sysctl-$global$+4(%r1),%r3  ; &devinet_sysctl.devinet_vars (offset 4)
	ldo 836(%r3),%r19                          ; &devinet_sysctl.devinet_root_dir (offset 840)
	comb,>> %r19,%r3,.L2613
	copy %r19,%r26                             ; arg 0 of register_sysctl_table
	ldil LR'.LC44,%r26
	.CALL ARGW0=GR
	bl panic,%r2
	ldo RR'.LC44(%r26),%r26
.L2613:
	.CALL ARGW0=GR,ARGW1=GR
	bl register_sysctl_table,%r2
	nop

relevant bits of hppa-linux-objdump -S vmlinux for 1.3:

c02ae538:       2b 6f 00 00     addil 1e000,dp,%r1
c02ae53c:       34 23 24 e0     ldo 1270(r1),r3
c02ae540:       34 73 06 88     ldo 344(r3),r19
c02ae544:       88 73 a0 18     cmpb,>> r19,r3,c02ae558 <.L2613>
c02ae548:       08 13 02 5a     copy r19,r26

Note:

$ printf "%x\n" $((0x1270+0x344))
15b4

devinet.c.1.4:

	devinet_sysctl.sysctl_header =
		register_sysctl_table(devinet_sysctl.devinet_root_dir, 0);

devinet.s.1.4:

	addil LR'devinet_sysctl-$global$,%r27
	ldi 0,%r25
	ldo RR'devinet_sysctl-$global$+840(%r1),%r4
	.CALL ARGW0=GR,ARGW1=GR
	bl register_sysctl_table,%r2
	copy %r4,%r26

relevant bits of hppa-linux-objdump -S vmlinux for 1.4:

c02ae534:       2b 6f 00 00     addil 1e000,dp,%r1
c02ae538:       34 19 00 00     ldi 0,r25
c02ae53c:       34 24 2b 69     ldo -a4c(r1),r4
c02ae540:       e8 5f 08 15     b,l c02ad950 <.Lfe1+0x118>,rp
c02ae544:       08 04 02 5a     copy r4,r26

Note:
$ printf "%x\n" -0xa4c
fffff5b4

(and of course, the low 13 bits of that are 0x15b4)

I'm looking at the relevant binutils code right now.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
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David Huggins-Daines <dhd@linuxcare.com> writes:

> It looks like binutils is incorrectly treating those fields as
> unsigned, or has an off by one error, or something similar.  The

No.  My mistake.  binutils is doing the right thing, the problem is
that, due to the way the LR' and RR' field selectors work, there is a
bad interaction between cases in which the DPREL21L and DPREL14R (or
any 21L and 14R relocations actually) are "split" like this, and ld
-r, which tends to increase the addends to a point where LR' and RR'
have different effects (LR' expects RR' to be positive, but it isn't).
Then during final relocation, the wrong thing happens.

So it would appear that this is a problem with GCC, but I'm not really
sure.

I'll have a better explanation once I work through the failure modes
and come up with a good short testcase.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Okay, this is my final word on this for today, I promise that if I
send any more mail on it, it will include a patch :-)

David Huggins-Daines <dhd@linuxcare.com> writes:

> No.  My mistake.  binutils is doing the right thing, the problem is
> that, due to the way the LR' and RR' field selectors work, there is a
> bad interaction between cases in which the DPREL21L and DPREL14R (or
> any 21L and 14R relocations actually) are "split" like this, and ld
> -r, which tends to increase the addends to a point where LR' and RR'
> have different effects (LR' expects RR' to be positive, but it isn't).
> Then during final relocation, the wrong thing happens.
> 
> I'll have a better explanation once I work through the failure modes
> and come up with a good short testcase.

Here is a small program that calculates RR' and LR' fields based on a
RELA according to the definitions in the PA-RISC ELF supplement:

#!/usr/bin/perl -w
use strict;

sub RND($) {
  my $x = shift;
  return (($x + 0x1000) & ~0x1fff);
}

sub R($) {
  my $x = shift;
  return $x & 0x7ff;
}

sub L($) {
  my $x = shift;
  return $x & ~0x7ff;
}

sub LR($$) {
  my ($x, $a) = @_;
  return L($x + RND($a));
}

sub RR($$) {
  my ($x, $a) = @_;
  return R($x + RND($a)) + ($a - RND($a));
}

while (<>) {
  my ($value, $addend) = map hex, split;
  my $lr = LR $value, $addend;
  my $rr = RR $value, $addend;
  printf "LR(%x, %x) = %x ; RR(%x, %x) = %x ; LR + RR = %x\n",
    $value, $addend, $lr, $value, $addend, $rr, $lr + $rr;
}
__END__

Now, we see that in net/ipv4/devinet.o we have:

  24:	2b 60 00 00 	addil 0,dp,%r1
			24: R_PARISC_DPREL21L	.data+0x78
  28:	34 19 00 00 	ldi 0,r25
  2c:	34 24 00 00 	ldo 0(r1),r4
			2c: R_PARISC_DPREL14R	.data+0x3c0

Then, in net/ipv4/ipv4.o (which is produced by running ld -r on the
objects in that directory) we see that the addends have been increased:

     b9c:	2b 60 00 00 	addil 0,dp,%r1
			b9c: R_PARISC_DPREL21L	.data+0xd5c
     ba0:	34 19 00 00 	ldi 0,r25
     ba4:	34 24 00 00 	ldo 0(r1),r4
			ba4: R_PARISC_DPREL14R	.data+0x10a4

So, let's feed these addends to that script:

[dhd@tarwebok] ~/src/parisc/binutils-2.10$ perl test-broken-relocs.pl
0 78
LR(0, 78) = 0 ; RR(0, 78) = 78 ; LR + RR = 78
0 3c0
LR(0, 3c0) = 0 ; RR(0, 3c0) = 3c0 ; LR + RR = 3c0

In this case, you can see that everything is fine, because the LR
fields will contain the same values for both relocations.

But now, let's see what happens after we relink it:

[dhd@tarwebok] ~/src/parisc/binutils-2.10$ perl test-broken-relocs.pl
0 d5c
LR(0, d5c) = 0 ; RR(0, d5c) = d5c ; LR + RR = d5c
0 10a4
LR(0, 10a4) = 2000 ; RR(0, 10a4) = fffff0a4 ; LR + RR = 10a4

As you can see, now the LR fields are out of sync, and we get a
negative offset in the LDO instruction even though the addend + value
is still well within the range of a 14-bit signed field.

As far as I can tell, the ABI and possibly the instruction set are
broken by design by using an addition instead of a logical OR to fill
in the low bits of an immediate value [1].  But we have to cope with
this somehow.

> So it would appear that this is a problem with GCC, but I'm not really
> sure.

As far as I can tell, we can either fix this in GCC or in the linker.

I don't know if the linker is able to associate paired 21L and 14R
relocations, but if it were, I assume that it would be fairly easy to
make sure that they stay "in sync" with each other when linking with -r.

However, it could be argued that the real problem is that GCC always
omits the addend when outputting addil instructions for referring to
global data.  For example, this C code:

struct foo {
  int a[192];
  int b;
};

struct foo f = {
  {}, 42
}, g = {
  {}, 666
};

int a(void* foo)
{
}

int main()
{
  a(&f.a[145]);
  a(&f.b);
  a(&g.b);
  return;
}
Generates the following assembly code (edited for length and content):

main:
	.PROC
	.CALLINFO FRAME=64,CALLS,SAVE_RP
	.ENTRY
	stw %r2,-20(%r30)
	ldo 64(%r30),%r30
	addil LR'f-$global$,%r27                ; look ma, no addend
	.CALL ARGW0=GR
	bl a,%r2
	ldo RR'f-$global$+580(%r1),%r26         ; but we have one here!
	addil LR'f-$global$,%r27                ; no addend
	.CALL ARGW0=GR
	bl a,%r2
	ldo RR'f-$global$+768(%r1),%r26         ; addend
	addil LR'g-$global$,%r27                ; no addend
	.CALL ARGW0=GR
	bl a,%r2
	ldo RR'g-$global$+768(%r1),%r26         ; addend
	ldw -84(%r30),%r2
	bv %r0(%r2)
	ldo -64(%r30),%r30
	.EXIT
	.PROCEND

I don't see any good reason why GCC cannot put the addends on the
ADDIL instructions as well.  Manually munging the assembly code and
assembling it certainly produces correct output, and in fact doing the
same to net/ipv4/devinet.s in the kernel:

--- devinet.s~	Thu Jul 13 19:40:55 2000
+++ devinet.s	Thu Jul 13 19:41:16 2000
@@ -2806,7 +2806,7 @@
 	.CALL ARGW0=GR
 	bl register_netdevice_notifier,%r2
 	ldo RR'ip_netdev_notifier-$global$(%r1),%r26
-	addil LR'devinet_sysctl-$global$,%r27
+	addil LR'devinet_sysctl-$global$+840,%r27
 	ldi 0,%r25
 	ldo RR'devinet_sysctl-$global$+840(%r1),%r4
 	.CALL ARGW0=GR,ARGW1=GR

Fixes the non-booting problems :P

Of course, it would be a nice optimization if the above code could
reuse %r1 for different parts of the same structure, if it were of an
appropriate size.  However GCC does not appear to do anything of the
sort, and reading the RTL dumps indicates that the addends are
actually present in the insns all the way up until final output (this
is the RTX for the ADDIL in the .27.dbr dump from the above program):

(insn 8 35 45 (set (reg:SI 1 %r1)
        (high:SI (const:SI (plus:SI (symbol_ref:SI ("f"))
                    (const_int 580 [0x244]))))) 84 {post_std+6} (nil)
    (expr_list:REG_EQUIV (high:SI (const:SI (plus:SI (symbol_ref:SI ("f"))
                    (const_int 580 [0x244]))))
        (nil)))

Implementing the fix is left as an exercise to the writer (argh).

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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On 13 Jul 2000, David Huggins-Daines wrote:

> Okay, this is my final word on this for today, I promise that if I
> send any more mail on it, it will include a patch :-)

Nice bit of debugging, David.  Have a look in
gcc/config/pa/pa.c:output_global_address

      /* How bogus.  The compiler is apparently responsible for
	 rounding the constant if it uses an LR field selector.

	 The linker and/or assembler seem a better place since
	 they have to do this kind of thing already.

	 If we fail to do this, HP's optimizing linker may eliminate
	 an addil, but not update the ldw/stw/ldo instruction that
	 uses the result of the addil.  */
      if (round_constant)
	offset = ((offset + 0x1000) & ~0x1fff);

Zap these two lines, and I think the problem will go away.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Jeffrey A Law <law@cygnus.com> writes:

>   In message <Pine.LNX.4.21.0007141038590.15538-100000@front.linuxcare.com.au>y
> ou write:
>   > Zap these two lines, and I think the problem will go away.
> But that's totally the wrong thing to do as it will break hpux.
> 
> The linker is the problem.

I've conditionalized it on the existence of GNU ld, is that okay?

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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  In message <Pine.LNX.4.21.0007141038590.15538-100000@front.linuxcare.com.au>y
ou write:
  > On 13 Jul 2000, David Huggins-Daines wrote:
  > 
  > > Okay, this is my final word on this for today, I promise that if I
  > > send any more mail on it, it will include a patch :-)
  > 
  > Nice bit of debugging, David.  Have a look in
  > gcc/config/pa/pa.c:output_global_address
  > 
  >       /* How bogus.  The compiler is apparently responsible for
  > 	 rounding the constant if it uses an LR field selector.
  > 
  > 	 The linker and/or assembler seem a better place since
  > 	 they have to do this kind of thing already.
  > 
  > 	 If we fail to do this, HP's optimizing linker may eliminate
  > 	 an addil, but not update the ldw/stw/ldo instruction that
  > 	 uses the result of the addil.  */
  >       if (round_constant)
  > 	offset = ((offset + 0x1000) & ~0x1fff);
  > 
  > Zap these two lines, and I think the problem will go away.
But that's totally the wrong thing to do as it will break hpux.

The linker is the problem.

jeff


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Jeffrey A Law <law@cygnus.com> writes:

> How/why is ld -r changing the addends?  That seems wrong at first glance.

The relocations in question are specified as <.data+0xf00>, and thus,
as far as I can tell, it has to change the addends since there is no
symbol value within .data that it can update.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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  In message <87lmz4zoma.fsf@linuxcare.com>you write:
  > Jeffrey A Law <law@cygnus.com> writes:
  > 
  > >   In message <Pine.LNX.4.21.0007141038590.15538-100000@front.linuxcare.co
  > m.au>y
  > > ou write:
  > >   > Zap these two lines, and I think the problem will go away.
  > > But that's totally the wrong thing to do as it will break hpux.
  > > 
  > > The linker is the problem.
  > 
  > I've conditionalized it on the existence of GNU ld, is that okay?
No, because you're working around a bug in GNU-ld.  GCC is following
the defined behavior for the PA32 ABI.
jeff


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  In message <87sntd20mo.fsf@linuxcare.com>you write:
  > David Huggins-Daines <dhd@linuxcare.com> writes:
  > 
  > > It looks like binutils is incorrectly treating those fields as
  > > unsigned, or has an off by one error, or something similar.  The
  > 
  > No.  My mistake.  binutils is doing the right thing, the problem is
  > that, due to the way the LR' and RR' field selectors work, there is a
  > bad interaction between cases in which the DPREL21L and DPREL14R (or
  > any 21L and 14R relocations actually) are "split" like this, and ld
  > -r, which tends to increase the addends to a point where LR' and RR'
  > have different effects (LR' expects RR' to be positive, but it isn't).
  > Then during final relocation, the wrong thing happens.
How/why is ld -r changing the addends?  That seems wrong at first glance.

You might look at how the HP SOM tools handle addends during ld -r;
I suspect they don't change.

To the best of my knowledge GCC is using LR/RR in the prescribed way.

jeff


From - Thu Nov 08 21:12:56 2018
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From: Mike Shaver <shaver@netscape.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [hppa-linux] syscall work
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This is a multi-part message in MIME format.
--------------730027CB6170D7FBD3ED2024
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

I've committed a mildly updated version of unistd.h, which contains the
magic _syscall<n> macros.  I'm sure I'm doing silly things, so you
should all point and laugh as approriate.

I've attached the relevant chunks for your easy mocking.

Mike

-- 
22863.99 20474.77
--------------730027CB6170D7FBD3ED2024
Content-Type: text/plain; charset=us-ascii;
 name="syscall.c"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="syscall.c"


#define syscall_prolog                                                        \
    register long __res __asm__("%r22");                                      \
    register long __err __asm__("%r28");

#define syscall_epilog(type)                                                  \
if (__err == 0)                                                               \
        return (type) __res;                                                  \
errno = __res;                                                                \
return -1;

#define _syscall0(type,name)                                                  \
type name(void)                                                               \
{                                                                             \
    syscall_prolog;                                                           \
    __asm__ volatile ("ldil L%%0xC0000004,%%r1\n\t"                           \
                      "ble  R%%0xC0000004(%%sr7,%%r1)\n\t"                    \
                      "ldo  %2,%%r22"                                         \
                      : "=r" (__res), "=r" (__err)                            \
                      : "i" (__NR_##name));                                   \
    syscall_epilog(type);                                                     \
}

#define _syscall1(type,name,atype,a)                                          \
type name(atype a)                                                            \
{                                                                             \
    syscall_prolog;                                                           \
    __asm__ volatile ("ldo  %2,%%arg0\n\t"                                    \
                      "ldil L%%0xC0000004,%%r1\n\t"                           \
                      "ble  R%%0xC0000004(%%sr7,%%r1)\n\t"                    \
                      "ldo  %3,%%r22"                                         \
                      : "=r" (__res), "=r" (__err)                            \
                      : "i" (__NR_##name), "r" ((long)a));                    \
    syscall_epilog(type);                                                     \
}

--------------730027CB6170D7FBD3ED2024--


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  In message <87hf9szo9j.fsf@linuxcare.com>you write:
  > Jeffrey A Law <law@cygnus.com> writes:
  > 
  > > How/why is ld -r changing the addends?  That seems wrong at first glance.
  > 
  > The relocations in question are specified as <.data+0xf00>, and thus,
  > as far as I can tell, it has to change the addends since there is no
  > symbol value within .data that it can update.
Either we need to avoid merging the section symbols to avoid twiddling
the addend, or we need to avoid reducing relocs to section symbols to
begin with.

jeff


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From: David Huggins-Daines <dhd@linuxcare.com>
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Jeffrey A Law <law@cygnus.com> writes:

> Either we need to avoid merging the section symbols to avoid twiddling
> the addend, or we need to avoid reducing relocs to section symbols to
> begin with.

We only reduce relocations to section symbols for static data.  It
seems that every other platform I've investigated (Sparc, PowerPC,
Alpha) does the same thing, so, while I think it would be possible to
not reduce them on PA, I'm not sure what the unintended side effects
would be.

As for not merging section symbols ... I'm not sure how that would be
done, but if it's the only option I guess we can figure it out.

Alan: any thoughts on this?

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
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David Huggins-Daines <dhd@linuxcare.com> writes:

> Jeffrey A Law <law@cygnus.com> writes:
> 
> > Either we need to avoid merging the section symbols to avoid twiddling
> > the addend, or we need to avoid reducing relocs to section symbols to
> > begin with.
> 
> We only reduce relocations to section symbols for static data.  It
> seems that every other platform I've investigated (Sparc, PowerPC,
> Alpha) does the same thing

Wait.  I'm wrong.  PowerPC doesn't:

static struct foo {
  int a;
  int b;
} a = {
  a: 42,
  b: 69
};

int main()
{
  gar(&a.b);
  ...
}

Compiles to:

  4c:	3d 20 00 00 	lis	r9,0
			4e: R_PPC_ADDR16_HA	a+0x4
  50:	38 69 00 04 	addi	r3,r9,4
			52: R_PPC_ADDR16_LO	a+0x4

Okay, I'll investigate this approach.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: GAS fix for reloc problems (was Re: [parisc-linux] Non-bootable kernel problems)
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David Huggins-Daines <dhd@linuxcare.com> writes:

> David Huggins-Daines <dhd@linuxcare.com> writes:
> 
> > Jeffrey A Law <law@cygnus.com> writes:
> > 
> > > Either we need to avoid merging the section symbols to avoid twiddling
> > > the addend, or we need to avoid reducing relocs to section symbols to
> > > begin with.
> Okay, I'll investigate this approach.

Done.  PA-RISC porters, update your binutils-2.10 and GCC. (again :-)

Here's the patch, which I've committed to puffin CVS (I've
reverted the incorrect GCC changes):

2000-07-14  David Huggins-Daines  <dhd@linuxcare.com>

	* config/tc-hppa.c (hppa_fix_adjustable): Reject reductions of
	sym-sym2 expressions as well as LR% and RR% fields on ELF targets
	as well.

Index: tc-hppa.c
===================================================================
RCS file: /home/cvs/parisc/binutils-2.10/gas/config/tc-hppa.c,v
retrieving revision 1.12
retrieving revision 1.13
diff -u -r1.12 -r1.13
--- tc-hppa.c	2000/07/11 14:02:15	1.12
+++ tc-hppa.c	2000/07/14 21:48:42	1.13
@@ -8369,10 +8369,25 @@
   /* Reject reductions of symbols in 32bit relocs.  */
   if (fixp->fx_r_type == R_HPPA && hppa_fix->fx_r_format == 32)
     return 0;
+#endif
 
   /* Reject reductions of symbols in sym1-sym2 expressions when
      the fixup will occur in a CODE subspace.
 
+     NOTE: We want to reject these for ELF targets as well, because
+     otherwise we will lose in the case of 21L and 14R
+     relocations.  (FIXME: will this break ELF64 targets?)
+
+     This is because, since the symbols are reduced, the linker has no
+     choice but to manipulate the addends when coalescing input .data
+     sections.  Because the 32-bit ABI requires the compiler to
+     pre-round LR% field selectors, this means we end up with
+     different addends for the left and right relocations.  Because of
+     the way LR% and RR% field selectors work, it's possible that the
+     RR% field will turn negative without the LR% field being rounded
+     accordingly, and your Linux kernel crashes mysteriously.
+     - dhd@linuxcare.com, 2000-07-14
+
      XXX FIXME: Long term we probably want to reject all of these;
      for example reducing in the debug section would lose if we ever
      supported using the optimizing hp linker.  */
@@ -8386,12 +8401,14 @@
     }
 
   /* We can't adjust any relocs that use LR% and RR% field selectors.
-     That confuses the HP linker.  */
+     That confuses the HP linker.
+
+     FIXME: do we actually need to do this for ELF32/GNU ld as well?
+     What about ELF64? */
   if (hppa_fix->fx_r_field == e_lrsel
       || hppa_fix->fx_r_field == e_rrsel
       || hppa_fix->fx_r_field == e_nlrsel)
     return 0;
-#endif
 
   /* Reject reductions of symbols in DLT relative relocs,
      relocations with plabels.  */

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Non-bootable kernel problems
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On 14 Jul 2000, David Huggins-Daines wrote:

> Alan: any thoughts on this?

My first thoughts when I read Jeff's email about my proposed removal of
the gcc hack for the hpux linker were along the lines of "two wrongs don't
make a right, so it's not surprising that ld -r is tripped up".  That was
late last night just before I went to bed, and I'm glad I didn't reply
then, as Jeff is quite correct.  The way those LR and RR field selectors
work means that a reloc addend cannot be modified under any circumstances.
Even if the gcc hack was removed, the linker would still do the wrong
thing with certain cases of one instruction with LR selector combined with
multiple instructions using RR selectors.  Gross.

I'm not sure why the assembler is specifying the relocs against a sections
symbols - it's something I've noticed on x86 for a long time, and never
bothered to figure out why, as it didn't cause any problem.  I'll have a
look.

Regards, Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: GAS fix for reloc problems (was Re: [parisc-linux] Non-bootable
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Xref: news.gmane.org gmane.linux.ports.parisc:7578

On 14 Jul 2000, David Huggins-Daines wrote:

> Done.  PA-RISC porters, update your binutils-2.10 and GCC. (again :-)

Just a note on the patch.  This particular bug existed in the elf hppa
assembler long before anyone tried porting linux to parisc - it's not
specific to the kernel.  David's fix may just happen to cure some userland
problems too.

-- 
Linuxcare.  Support for the Revolution.


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From: "FINK,MARTIN \(HP-FtCollins,ex1\)" <martin_fink@hp.com>
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Subject: RE: [parisc-linux] When
Date: Sun, 16 Jul 2000 14:06:34 -0600
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Here are the current plans for PA/Linux.  Given that this effort
is being driven both by HP and the Open Source community, these
plans are subject to change.

Linux support for PA-RISC is being phased-in over the rest of 2000.
A 32-bit developer's release will be available in August, with a 
32-bit beta available soon after. In Q4 of 2000, there will be a 
Debian 64-bit production release that will be supported on HP 9000 
A500 & A400 servers, as well as HP 9000 L1000 and L2000 servers.  
The release will 	be available for download and also on CD.  It not 
available as a pre-installed option.

Martin

+=================================================================+
| Martin Fink                 | E-mail: martin_fink@hp.com        |
| UNIX Systems Enablement Lab | Phone:  970-898-7076              |
| Hewlett-Packard Co.         | FAX:    970-898-2838              |
| 3404 East Harmony Road      | Mobile: 970-215-2451              |
| MS 42 - Ft. Collins, CO     | Page:   9702152451@mobile.att.net |
| 80528, USA                  | Web:    http://usel.fc.hp.com/    |
+=================================================================+    
 

> -----Original Message-----
> From: Gyula Matics [mailto:mgyula@pi.satimex.tvnet.hu]
> Sent: Thursday, July 13, 2000 12:09 PM
> To: parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] When
> 
> 
> 
> ...did you noticed that the A[45]00 product brief lists Linux as a
> supported OS? (you can find it at www.hp.com/go/aclass)
> 
> I had a worrying sales type coming to my desk yesterday asking more or
> less the same question that Dave did. There are people trying to order
> A class servers with Linux preinstalled.
> 
> Told him to come back in October. That's about right for the first
> somewhat useable Debian release, isn't it?
> 
> Gyula
> 
> --------------------------------------------------------------
> -------------
> To unsubscribe: send e-mail to 
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


From - Thu Nov 08 21:12:56 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ELF loader is badly broken
Date: 17 Jul 2000 19:31:34 -0400
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Hi,

Basically it's pure chance that our ELF binary loader works at all.

The reason I say this is that we do not make sure that we actually map
in pages for the initial stack frame containing argc, argv, and
various ELF info, and, since the stack grows upwards while the frame
grows downwards, we often end up spilling over into unmapped memory in
create_elf_tables() when putting the pointers in argv and envp on the
stack.

The reason it actually works at all is that we *do* map these pages
when copying in the actual argc and argv strings, and therefore, if
there happens to be enough space left on the last page of strings (as
there nearly always is if the environment and argument vectors are
short enough and contain small enough strings), we manage to do okay.

I *think* that the reason the code works on other architectures is
that, since both their stacks and stack frames grow downwards, a page
fault in create_elf_tables() will Do The Right Thing by just
allocating more stack space.  Of course I could be totally wrong about
that...

In any case we probably need a special dispensation in the binary
loader code for our up-growing stacks and down-growing frames.  It
seems to me like we can either:

 1) Make a special #ifdef __hppa__ (yuck) in exec.c (or somewhere - I
    don't suppose there are any hooks for this sort of thing ... or
    for that matter any other supported architectures with up-growing
    stacks) to leave enough room for the argv and envp and associated
    bits that get put there by the binfmt stuff.

 2) Make an exception in the page fault handler (or probably in
    expand_stack(), I tried setting the VM_GROWSDOWN flag on it and
    that clearly wasn't enough) to the stack-growing-up-rule for the
    initial stack frame's VMA, for at least as long as it takes us to
    populate it with pointers.

If (2) actually works, it should be the better solution, I think,
because it means we don't have to second-guess the amount of crap the
binary format loaders are going to put on the stack for us.  Someone
who isn't an idiot like me can maybe comment further :-)

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: Help Apollo serie 700
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To: Ville Herva <vherva@mail.niksula.cs.hut.fi>
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Xref: news.gmane.org gmane.linux.ports.parisc:7581

On Tue, Jul 18, 2000 at 08:50:33AM +0300, Ville Herva wrote:
> On Mon, Jul 17, 2000 at 04:37:45PM -0400, you [Matthew Wilcox] claimed:
> > On Mon, Jul 17, 2000 at 06:59:59PM +0200, fbarthe@prescom.fr wrote:
> > 
> > > Any distribution including thid version of kernel ?
> > 
> > not yet.  we're working towards having debian/parisc available as soon as
> > possible.
> 
> How far is that anyway? What short of expertice would you say is needed to
> play with linux/pa-risc today? The Puffin Group status page wasn't too
> verbose when I last cheched. (A friend of mine has a couple of 7xx's that
> are currently doing nothing useful...)

we have a cross toolchain working; most of the fileutils, textutils,
shellutils packages, fdisk, e2fsprogs, mount, and probably a few other
random programs.  yesterday, we found out why native gcc was crashing
the kernel; today we're trying to figure out why it still doesn't work
now that this bug is kludged around.

you need to be confident at compiling things and be able to track down
what's gone wrong when things don't compile in order to be useful at
this time.

i'm fiddling with the website right now and i'll see what i can do in
the way of clarity.  constructive criticism welcomed.

-- 
The Sex Pistols were revolutionaries.  The Bay City Rollers weren't.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PIC code generation in gcc/binutils
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Hi Alan, other porters,

I'm at the point now (userland mostly works for me as does the 64-bit
toolchain) where I'd like to start working on the implementation of
ELF dynamic linking for hppa-linux.  Obviously the precondition for
this is a working PIC code model in GCC and binutils.

I was hoping to write up a preliminary ABI specification based on the
64-bit ELF implementation on HP/UX, so I've been trying to find
detailed specifications on how the ELF64 ABI actually works but so far
have not come up with much information from HP's documentation.  The
64-bit runtime architecture document has some useful information, but
I suspect I'll have to look at the actual implementation to nail down
the details.

One thing I am sure of is that if we try to follow the HP/UX ELF64
specification for dynamic linking on 32-bit Linux we are going to be
substantially different from other Linux/ELF platforms.  In
particular, the handling of inter-module calls and function pointers,
and the management of the GP, are done in a totally different way from
all the other platforms I've encountered (i386, m68k, alpha).
(i.e. inter-module calls are handled by another set of stubs, and GP
management is done by the caller via the function descriptors, rather
than by the callee with GPDISP and similar relocations)

This will potentially make implementing ld.so more difficult, and thus
I'm not sure how desireable it is to follow the 64-bit example; we
will never have to actually link and load HP/UX ELF binaries with our
native toolchain and dynamic linker, even when we do have support for
64-bit userland.

On the other hand following the ELF64 example *will* allow us to reuse
code (though the ELF64 PIC implementation in BFD appears to be still
somewhat incomplete) in binutils, so it looks like kind of a
binutils/ld.so tradeoff.

Thus I am playing a bit with adapting the ELF64 code to produce a
preliminary PIC-generating toolchain.  I don't, however, want to get
too far into this before knowing (a) what other people are working on,
and (b) what the implementation is going to look like.

Thoughts?

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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PA-RISC Arch 1.1 book says:
On page 3-14:

	Exact form of these tables is s/w convention. 

Q.	If the format is software convention, does that mean
	the fields within TLB slots are not defined by Hardware ?
	Though  the book does seem to indicate what fields are needed
	in a pdir entry. Without knowing exact positions of various
	fields how would TLB entries be updated from pdir entries in
	memory ?

	Other interesting point to note is that PA-RISC does not
	define how many entries in the table etc. Very much unlike
	x86.

-pkd
	





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From: Chris Snow <csnow@julian.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] LXR tool ?
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Is the LXR tool on the parisc webpage no longer being used/maintained?  It
doesn't seem to have the current source trees indexed... (specifically, I
was looking at linux-2.3/drivers/gsc - the last update in the LXR tree
view shows as Jan 12 2000).

thanks,

          Chris


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Subject: Re: [parisc-linux] LXR tool ?
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Xref: news.gmane.org gmane.linux.ports.parisc:7585

On Tue, Jul 18, 2000 at 02:36:53PM -0400, Chris Snow wrote:
> Is the LXR tool on the parisc webpage no longer being used/maintained?  It
> doesn't seem to have the current source trees indexed... (specifically, I
> was looking at linux-2.3/drivers/gsc - the last update in the LXR tree
> view shows as Jan 12 2000).

i've been told before that it doesn't work.  i never use it myself so
i don't really care all that much (what's wrong with find/grep?!) but
i did try to fix it and i can't find the problem.  anyone experienced
with lxr want to try to fix it?

-- 
Revolutions do not require corporate support.


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Matthew Wilcox wrote:
> 
> i've been told before that it doesn't work.  i never use it myself so
> i don't really care all that much (what's wrong with find/grep?!) but
> i did try to fix it and i can't find the problem.  anyone experienced
> with lxr want to try to fix it?

I've asked Tara Dear to take a look at it.

- Alex

-- 
Alex deVries, Director of Professional Services, The Puffins at
Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Chris Snow <csnow@julian.uwo.ca>
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Subject: [parisc-linux] HIL support on 715/old ?
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Has anyone tested the HIL support on 715/old [33,50] ?  We are seeing
hangs here and I was wondering if that might be the problem ...

We'll try to narrow down the problem.  Any "it is broken" or "you are
dumb, it works fine!" messages are appreciated :)



          Chris


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Subject: Re: [parisc-linux] HIL support on 715/old ?
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Xref: news.gmane.org gmane.linux.ports.parisc:7588

On Tue, Jul 18, 2000 at 03:42:26PM -0400, Chris Snow wrote:
> 
> Has anyone tested the HIL support on 715/old [33,50] ?  We are seeing
> hangs here and I was wondering if that might be the problem ...

that was what i wrote it on originally (wrote is a little strong; it's
basically philb's hil driver from linux/m68k).  however, i haven't tested
it recently (eg since we moved to 2.3).

-- 
Revolutions do not require corporate support.


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On Tue, 18 Jul 2000, Matthew Wilcox wrote:

> On Tue, Jul 18, 2000 at 03:42:26PM -0400, Chris Snow wrote:
> > 
> > Has anyone tested the HIL support on 715/old [33,50] ?  We are seeing
> > hangs here and I was wondering if that might be the problem ...
> 
> that was what i wrote it on originally (wrote is a little strong; it's
> basically philb's hil driver from linux/m68k).  however, i haven't tested
> it recently (eg since we moved to 2.3).

alright, well I'll do some more testing on it.  Probably not until after
OLS though (ie: next week)...

          Chris


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] scheduling
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i can't seem to find any documentation on the HP website about scheduling
instructions for different processor models.  gcc currently defaults to
scheduling for the PA700 (presumably this is PCX?), and can be asked
to schedule for PA-7100, PA-7200 or PA-8000.  i'm guessing that 8200,
8500 and 8600 have slightly different scheduling requirements.

my main question is, what should we default it to?  does scheduling for
PA-8000 have a really bad effect on other CPU models?  or vice versa,
is scheduling for PA-700 a really bad choice for PA-8x00 CPUs?  i know
later PA models have all the fancy register renaming stuff in them so
it may not make much difference, but i'm curious.

-- 
Revolutions do not require corporate support.


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From: Jason Eckhardt <jle@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] scheduling
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On Tue, 18 Jul 2000, Matthew Wilcox wrote:

> 
> i can't seem to find any documentation on the HP website about scheduling
> instructions for different processor models.

  There are at least two processor model docs
  on the puffin site (PCXL and PCXL2, i.e. the 7100LC and 7300 I believe).
  These ERSs discuss pipelines, latencies, bundling rules, etc -- scheduling
  rules.

>  gcc currently defaults to
> scheduling for the PA700 (presumably this is PCX?), and can be asked
> to schedule for PA-7100, PA-7200 or PA-8000.

  PCXT = 7100
  PCXT' = 7200
  PCXU = 8000

> i'm guessing that 8200,
> 8500 and 8600 have slightly different scheduling requirements.
> 
  
  The 8200, 8500, and 8600 have the same basic core as the PA8000. Scheduling
  for the 8000 should be fine for 8x00.

> my main question is, what should we default it to?  does scheduling for
> PA-8000 have a really bad effect on other CPU models?  or vice versa,
> is scheduling for PA-700 a really bad choice for PA-8x00 CPUs?
>  i know
> later PA models have all the fancy register renaming stuff in them so
> it may not make much difference, but i'm curious.
> 

  While it would be cool to have a kernel specifically scheduled for
  each processor, its likely that one will just have to be chosen for 
  a 32-bit kernel.
  The PA8x000 are probably the least susceptible to other schedules
  because of its ROB. Scheduling for 7100 or 7200 might be a good choice
  (or whatever machine seems to be the most popular).

  Obviously, a 64-bit kernel (when it exists) would best be
  scheduled as PA8000.

  


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On Tue, 18 Jul 2000, Jason Eckhardt wrote:

>   While it would be cool to have a kernel specifically scheduled for
>   each processor, its likely that one will just have to be chosen for 
>   a 32-bit kernel.
>   The PA8x000 are probably the least susceptible to other schedules
>   because of its ROB. Scheduling for 7100 or 7200 might be a good choice
>   (or whatever machine seems to be the most popular).
> 

  Its probably worth mentioning also that most of the other processor
  models are dual-issue with very similar bundling rules. The 7100, 
  for example can issue 3 combinations: int-fp, fp-int, fp-branch. The
  7200 is similar, but also adds an int-int (with some restrictions)
  bundle type. So whichever of the 7xxx schedules we choose likely 
  won't cause death on other 7x000 processors. Still, the most common
  processor might be the best choice.


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HIL support on 715/old ?
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--- Matthew Wilcox <matthew@wil.cx> wrote:
> On Tue, Jul 18, 2000 at 03:42:26PM -0400, Chris Snow
> wrote:
> > 
> > Has anyone tested the HIL support on 715/old
> [33,50] ?  We are seeing
> > hangs here and I was wondering if that might be
> the problem ...
> 
> that was what i wrote it on originally (wrote is a
> little strong; it's
> basically philb's hil driver from linux/m68k). 
> however, i haven't tested
> it recently (eg since we moved to 2.3).
> 

As I wrote earlier to this list ( see
http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/06-Jun/0018.html
) the linux-2.3-pre8 is not able to boot on a 715/old.
It hangs during the initialization of the ASP chip. So
I guess that HIL (which depends on ASP) is not working
right now either.

Tara Dear had a similiar problem on a 715/50. So I
suspect that this is not a problem related to my
715/33 or my build environment.

Ulrich

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Subject: Re: [hppa-linux] Qn on PA-RISC Page tables and TLB
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>	Exact form of these tables is s/w convention. 
>
>Q.	If the format is software convention, does that mean
>	the fields within TLB slots are not defined by Hardware ?

There is no architectural definition of hardware TLB miss handling,
and most PA-RISC processors do not implement it.

On the ones that do support hardware TLB miss handling, the hardware
expects a certain format, and it is essentially the one given in the
examples in the architecture books.  The hardware TLB walker expects
a hash table of PDIR entries (indexed by a function of the space and
offset), and it only looks at the entries in the table.  Hash collisions
are resolved by a linked list, and the hardware does not walk the list;
this is left for the software miss handler.


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From: "Brian S. Julin" <bri@mojo.calyx.net>
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Subject: Re: [parisc-linux] HIL support on 715/old ?
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I haven't had the time yet to look at the code, which
I really honestly truthfully do hope to work on :-),
but someone at some point fixed it for the 715/64,
which meant changing HIL_BASE.  Someone else mentioned
that there's no PCIish bus/device tree yet, so maybe they j
ust re#defined it rather than probing.  The 715/64 used to 
hang there and it was because the HIL_BASE was wrong.

--
Brian S. Julin



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Subject: Re: [parisc-linux] HIL support on 715/old ?
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Cc: parisc-linux@thepuffingroup.com, Matthew Wilcox <matthew@wil.cx>
To: Ulrich Strelow <ulrich_strelow@yahoo.com>
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On 19 Jul, Ulrich Strelow wrote:

> 
> As I wrote earlier to this list ( see
> http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/06-Jun/0018..html
> ) the linux-2.3-pre8 is not able to boot on a 715/old.
> It hangs during the initialization of the ASP chip. So
> I guess that HIL (which depends on ASP) is not working
> right now either.
It is the parallell port. I had the same problem last week. I have not
looked in to why, I just disabled it in .config

/Daniel
-- 
Daniel Engstrm - Lilla Fabriken AB - Technical Support
daniel@lillfab.se - Work related.  5116@telia.com - Private.


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Subject: [parisc-linux] Anonymous CVS out of sync ?
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 Hi all,

I wasnt able to sync my tree with puffins since a couple of
days. Especially I am missing amodras binutils-2.10 commits.
I there a special tag for the latest changes ?


-- 
Ingo Matths                        Hewlett-Packard GmbH
Tel: ++49-2102-908-210              German Response Center
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OpenPGP fingerprint = 4298E7785FFD65DC8950 14E9F17F8CB5B611AA4A


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Anonymous CVS out of sync ?
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On Thu, 20 Jul 2000, Ingo Matthaes wrote:

> I wasnt able to sync my tree with puffins since a couple of
> days. Especially I am missing amodras binutils-2.10 commits.
> I there a special tag for the latest changes ?

You've been peeking at the cvs commits? :-)  That should have told you
that the tag is "shared".

I wasn't going to make any public announcements here yet, as the PIC and
shared library stuff is still highly experimental (ie. doesn't work).
Don't switch to the "shared" tag unless you enjoy fixing bugs, and bugs of
the design variety rather than just simple typos/oversights.  For
instance, today I've been busy redoing the .plt handling which was
completely broken.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Helge.Deller@ruhr-uni-bochum.de
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HIL support on 715/old ?
Date: Thu, 20 Jul 2000 16:27:06 +0200
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Hi Brian,

Am Wed, 19 Jul 2000 schrieb Brian S. Julin:
> I haven't had the time yet to look at the code, which
> I really honestly truthfully do hope to work on :-),

That would be great.
Since I'm moving to a new town, I won't have time in the next 2-3 weeks.

> but someone at some point fixed it for the 715/64,
> which meant changing HIL_BASE.

Yes, that was me. In the current code HILBASE refers to the variable hil_base
from drivers/gsc/hil.c. The address of the HIL-controller is
automatically set there by the detection routines.

> Someone else mentioned
> that there's no PCIish bus/device tree yet, so maybe they j
> ust re#defined it rather than probing.

No. The base-address is taken from the parisc-hw-tree. But maybe the choosen
interrupt-line is wrong for 715/old.
The HIL-bus itself has no PCIish tree (I mean: a list of the attached 
devices) yet.

> The 715/64 used to
> hang there and it was because the HIL_BASE was wrong.

Hmmm. ?
My 715/64 used to work with HIL-keyboard (keys come through, but the
translataion was wrong), but I haven't tested it in the last few weeks.

Helge Deller.


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From: Jeff Towarnicki <jtowarnicki@yahoo.com>
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Date: Thu, 20 Jul 2000 12:28:44 -0700 (PDT)
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I am having problems compiling gcc.. I am following
the recipe but I get problems with include files not
being found... I think the problem is because the
include directive -I looks for include files in
"include.h"'s and not <include.h>'s.. this is the
error I get (after about 30 mins into the compiling of
gcc on a pIII 450:
(the include files are there.... in
/home/jeff/parisc/include... )

if anyone can point out something I am doing wrong
much appreciated.. thanks.. Jeff

-----------------------------------------------------

 /home/jeff/parisc/gcc-build/gcc/xgcc
-B/home/jeff/parisc/gcc-build/gcc/
-B/home/jeff/parisc//hppa1.1-linux/bin/ -c -g -O2 -I.
-I../../../gcc/libio   ../../../gcc/libio/iogetline.c
-o pic/iogetline.o; \
else true; fi
/home/jeff/parisc/gcc-build/gcc/xgcc
-B/home/jeff/parisc/gcc-build/gcc/
-B/home/jeff/parisc//hppa1.1-linux/bin/ -c -g -O2 -I.
-I../../../gcc/libio  ../../../gcc/libio/iogetline.c
In file included from
../../../gcc/libio/iogetline.c:26:
../../../gcc/libio/libioP.h:30:19: errno.h: No such
file or directory
In file included from ../../../gcc/libio/iolibio.h:1,
                 from ../../../gcc/libio/libioP.h:47,
                 from
../../../gcc/libio/iogetline.c:26:
../../../gcc/libio/libio.h:30:23: _G_config.h: No such
file or directory
../../../gcc/libio/iogetline.c:27:20: string.h: No
such file or directory
make[1]: *** [iogetline.o] Error 1
make[1]: Leaving directory
`/home/jeff/parisc/gcc-build/hppa1.1-linux/libio'
make: *** [all-target-libio] Error 2
[jeff@localhost gcc-build]$               



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From: Jeff Towarnicki <jtowarnicki@yahoo.com>
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Subject: [parisc-linux] problems compiling..
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I am having problems compiling gcc.. I am following
the recipe but I get problems with include files not
being found... I think the problem is because the
include directive -I looks for include files in
"include.h"'s and not <include.h>'s.. this is the
error I get (after about 30 mins into the compiling of
gcc on a pIII 450:
(the include files are there.... in
/home/jeff/parisc/include... )

if anyone can point out something I am doing wrong
much appreciated.. thanks.. Jeff

-----------------------------------------------------

 /home/jeff/parisc/gcc-build/gcc/xgcc
-B/home/jeff/parisc/gcc-build/gcc/
-B/home/jeff/parisc//hppa1.1-linux/bin/ -c -g -O2 -I.
-I../../../gcc/libio   ../../../gcc/libio/iogetline.c
-o pic/iogetline.o; \
else true; fi
/home/jeff/parisc/gcc-build/gcc/xgcc
-B/home/jeff/parisc/gcc-build/gcc/
-B/home/jeff/parisc//hppa1.1-linux/bin/ -c -g -O2 -I.
-I../../../gcc/libio  ../../../gcc/libio/iogetline.c
In file included from
../../../gcc/libio/iogetline.c:26:
../../../gcc/libio/libioP.h:30:19: errno.h: No such
file or directory
In file included from ../../../gcc/libio/iolibio.h:1,
                 from ../../../gcc/libio/libioP.h:47,
                 from
../../../gcc/libio/iogetline.c:26:
../../../gcc/libio/libio.h:30:23: _G_config.h: No such
file or directory
../../../gcc/libio/iogetline.c:27:20: string.h: No
such file or directory
make[1]: *** [iogetline.o] Error 1
make[1]: Leaving directory
`/home/jeff/parisc/gcc-build/hppa1.1-linux/libio'
make: *** [all-target-libio] Error 2
[jeff@localhost gcc-build]$               



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From: Gyula Matics <mgyula@pi.satimex.tvnet.hu>
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Subject: Re: [parisc-linux] HIL support on 715/old ?
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Xref: news.gmane.org gmane.linux.ports.parisc:7602

> As I wrote earlier to this list ( see
> http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/06-Jun/0018.html
> ) the linux-2.3-pre8 is not able to boot on a 715/old.
> It hangs during the initialization of the ASP chip. So
> I guess that HIL (which depends on ASP) is not working
> right now either.

actually, the hang happens during parport initialization, when it tests
for ps2 (bi-directional) support.

It works fine without parport support.

Gyula


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Xref: news.gmane.org gmane.linux.ports.parisc:7603

On Fri, Jul 21, 2000 at 01:06:33PM -0500, borislav dzodzo wrote:
> hi i found some of your posts on 
> http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/
> and i thought you might know if 
> there already exists a linux version of fsck for 
> under pa-risc for HFS (not apple but HewlettPackard).

HP's HFS is a BSD Fast Filesystem (FFS) derivative.  There are a few
minor differences, but they are very closely related.  By studying the
HP-specific magic numbers added to recent 2.3/4 series kernels, you should
have no problem making a fsck.ufs or fsck.ffs work on Linux.  If anyone
can find one, let me know, and a mkfs would also be useful to have.

> if not... could you please tell me where are some good specs on
> HFS so that i could write my own.

-- 
Revolutions do not require corporate support.


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] problems compiling..
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Jeff Towarnicki wrote:
> I am having problems compiling gcc.. I am following
> the recipe but I get problems with include files not
> being found...

Jeff,
I don't the recipe is up-to-date anymore.
(gosh...that happened pretty fast).
It should be updated this coming week sometime.
Either I or Matt Taggart will update it.

In the meantime, you can hack the appended shell script.
(Should only need some initialization changes.)
It worked for me 10 days ago (ie before OLS).

enjoy,
grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


#!/bin/sh -x
#
# ~/bin/recipe.puffin
#
# build the xcompiler and glibc recipe
# 5/2000
# willy, pb, taggart, grundler, others

# make sure we don't get anything from any existing $PREFIX/bin
PATH=/usr/local/bin:/usr/bin:/bin

# Top level, "include" files also get tmp storage here.
TOP=/linux/grundler

# Where checked-out CVS sources live
SRC=$TOP

# Where your build sub-dirs go
BUILD=$TOP/xc-build

# Where to put the final bits, needs to be owned by the
# current user(to avoid sudo games)
PREFIX=/opt/puffin

# what we build by default
TARGET=hppa-linux
EXTRA_OPT=""

set -- `getopt uwrRp: $*`

while [ $# -gt 0 ]
do
	case $1 in
	-u) cd $TOP
	    cvs -z3 update -d binutils-2.10 gcc glibc
	    ;;
	-R) rm -fr $BUILD/build-gcc $BUILD/build-binutils
	    ;;
	-r) rm -rf $PREFIX/*
	    ;;
	-w) TARGET=hppa64-linux
	    BUILD=${BUILD}64
	    EXTRA_OPT="--enable-64-bit-bfd"
	    # PREFIX=${PREFIX}64 in case we need to start over alot
	    ;;
	-p) if [ -d $2 ]
	    then
		PREFIX=$2
	        shift
	    else
		echo "-p $2 is not a directory."
		exit 2
	    fi
	    ;;
	--)
	    ;;

	*)  set +x
	    echo "Invalid parameter: $1"
	    echo "Usage: recipe.puffin [ -w -u -r -p <prefix> ]"
	    echo "	-w build 64-bit (hppa64-linux) instead of hppa-linux"
	    echo "	-u update binutils-2.10 and gcc from CVS"
	    echo "	-r delete existing file in install directory"
	    echo "	-R delete existing build directories"
	    echo "	-p <prefix> install destination (default: /opt/puffin)"
	    exit 1
	    ;;
	esac
        shift
done

INCLUDE=$PREFIX/$TARGET/include

# Requirements
# o $SRC has binutils-2.10 gcc checked out
# o $PREFIX/include comes from pehc:~ftp/pub/parisc/src/include.tar.gz

# Copy include/asm and include/linux to $PREFIX/include
if [ ! -d $TOP/include ]
then
	echo  Please untar pehc:~ftp/pub/parisc/src/include.tar.gz in $TOP/include first!
	exit 1
fi

mkdir -p $INCLUDE
cp -r $TOP/include/* $INCLUDE
cp -r $SRC/linux-2.3/include/asm $INCLUDE
cp -r $SRC/linux-2.3/include/linux $INCLUDE

# make sure BUILD dirs exist
mkdir -p $BUILD/build-gcc $BUILD/build-binutils

### binutils
cd $BUILD/build-binutils
$SRC/binutils-2.10/configure --target=$TARGET --prefix=$PREFIX --disable-nls \
	$EXTRA_OPT
make
make install

# Prepend $PREFIX/bin to the path to get the right binutils
PATH=$PREFIX/bin:$PATH

cd $BUILD/build-gcc
$SRC/gcc/configure --target=$TARGET --prefix=$PREFIX --disable-nls \
	--without-libc --enable-languages=c

make LIBGCC2_INCLUDES=-I$INCLUDE
make install


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From: Michael Shalayeff <mickey@lucifier.dial-up.user.akula.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] Document Priority?
Date: Thu, 25 Mar 1999 11:49:02 -0500 (EST)
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Xref: news.gmane.org gmane.linux.ports.parisc:7605

hi
looking at the released pdc/iodc docs i'm wondering what is in the missing
chapters? is it possible to release the whole contents table?
what are the plans for the rest of the book(s) ?
and, is there any plan for "pa-risc IO architecture" release any soon?

thanks,
-- 
    paranoic mickey       (my employers have changed but, the name has remained)


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
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Subject: Re: [parisc-linux] HIL support on 715/old ?
Date: Mon, 24 Jul 2000 01:10:06 -0700 (PDT)
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--- Gyula Matics <mgyula@pi.satimex.tvnet.hu> wrote:
> > As I wrote earlier to this list ( see
> >
>
http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/06-Jun/0018.html
> > ) the linux-2.3-pre8 is not able to boot on a
> 715/old.
> > It hangs during the initialization of the ASP
> chip. So
> > I guess that HIL (which depends on ASP) is not
> working
> > right now either.
> 
> actually, the hang happens during parport
> initialization, when it tests
> for ps2 (bi-directional) support.
> 
> It works fine without parport support.
> 
> Gyula
> 
> 

Thanks for the tip. Now the kernel boots until the
sash prompt.

Ulrich


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Subject: [parisc-linux] HP/UX 10.20 800 series media?
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I know this is off topic, but I just aquired a k200
and I'd like to know where to get the HP/UX 10.20
install media. I have an 8 user license, I just need
the media.

Now on subject. K200 working in Linux and if so
is there SMP support yet?

-Matt


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On Mon, Jul 24, 2000 at 11:53:06AM -0500, Matthew Hudson wrote:
> Now on subject. K200 working in Linux and if so
> is there SMP support yet?

we're not really interested in supporting the k class right now.
it's pretty similar to early C/J class (C100, C110, J200, J210), but it
has some `interesting' devices in it that may be hard to support (the
SCSI adapter looks slightly strange).  we don't have any SMP support yet
and this machine won't be high on the priority list when we do start
working on SMP.  i guess you're going to have to join in and do some
hacking yourself :-)

-- 
Revolutions do not require corporate support.


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From: "Brian S. Julin" <bri@mojo.calyx.net>
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Subject: [parisc-linux] HIL hardware Qs
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OK, well this weekend I finally started working on a linux-input 
style driver for the HIL.  Unfortunately, I'm working with nothing
but other people's source and bare metal... I asked earlier
and noone came up with any substantial docs on the HIL.

So far the OpenBSD HIL driver has been the most helpful source.
While the linux driver does the wiser thing and does all the
key cooking in software, it's really just a basic bootstrap 
driver.  The BSD driver is prepared to deal with other devices 
on the HIL bus.

I'm trying to get a good abstraction of the HIL from the devices
on it as per the linux-input model (HIL ports -> struct serio and HIL
devices- > struct input)

My questions revolve around a comment at the polloff/pollon
functions in the BSD driver and the true nature of the relationship
between the 8042 and the HIL.  

/*
 * Send a command to a device on the loop.
 * Since only one command can be active on the loop at any time,
 * we must ensure that we are not interrupted during this process.
 * Hence we mask interrupts to prevent potential access from most
 * interrupt routines and turn off auto-polling to disable the
 * internally generated poll commands.
 */

The code then proceeds to tell the 8042 to stop polling.  I thought
the 8042 was basically just an adaptor to accomodate the PS/2-style
keyboards and mice.  But when I turn off the 8042 polling, I no 
longer get any interrupts even from my HIL keyboard.  So I guess the
8042 here is an integral part of the HIL.

Turning off/on polling as they suggest would cause a tangle as far
as clean abstraction between the HIL and the devices on it.  Not
insurmountable, but not something to be writing if I don't absolutley
have to.

So the first question is... were the BSD guys being completely
paranoid, or do we really have to worry about internally generated
commands on the loop?  If so, is there a better way to safeguard this.
Third, if I have to abandon using the IRQ and just poll from a timer,
do we have all the timer_list guts yet, or is that area incomplete?

Finally, can anyone explain the HIL_68K intricacy and what's going on
there? 

Anyone with better docs or source on hand than what I have, please
do send them.

BTW, I won't even really be able to compile this code until we do another
merge with the mainstream source, because the linux-input/linux-console
project keeps their CVS pretty bleeding edge, so don't expect anything 
functional too very soon.

--
Brian S. Julin



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From: Cary Coutant <cary@cup.hp.com>
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Subject: Re: [parisc-linux] PIC code generation in gcc/binutils
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>I was hoping to write up a preliminary ABI specification based on the
>64-bit ELF implementation on HP/UX, so I've been trying to find
>detailed specifications on how the ELF64 ABI actually works but so far
>have not come up with much information from HP's documentation.  The
>64-bit runtime architecture document has some useful information, but
>I suspect I'll have to look at the actual implementation to nail down
>the details.

As the HP-UX Runtime Architect, I'll be happy to answer any questions you 
may have on the runtime architecture. I realize that the 64-bit runtime 
architecture is weak in the dynamic loading area, but I'll try to make up 
for that by answering questions in this forum.


>One thing I am sure of is that if we try to follow the HP/UX ELF64
>specification for dynamic linking on 32-bit Linux we are going to be
>substantially different from other Linux/ELF platforms.  In
>particular, the handling of inter-module calls and function pointers,
>and the management of the GP, are done in a totally different way from
>all the other platforms I've encountered (i386, m68k, alpha).
>(i.e. inter-module calls are handled by another set of stubs, and GP
>management is done by the caller via the function descriptors, rather
>than by the callee with GPDISP and similar relocations)

The model used for PA-RISC is a a consequence of the segmented 
architecture, where the text and data segments are not adjacent. Since 
the PA-RISC sharing model is based on global virtual addresses, the text 
and data segment are loaded in separate quadrants of the address space so 
that the text can be shared and the data can be process-private. As a 
result, a procedure cannot materialize its own gp, since there is no 
fixed pc-relative offset between the text and data. This means that the 
caller must materialize the gp prior to the call, or as part of the call.

By the way, this model is also being used for IA-64. You may be able to 
leverage some of the work being done for ld.so on that platform.

It shouldn't really complicate the dynamic loader that much, though. A 
function pointer is still essentially a function pointer, and behaves the 
same as in the other model, even though it points to a 128-bit descriptor 
rather than an actual function. The linker needs to allocate a GOT entry 
for each import stub (aka "proxy") it creates, and attach a dynamic FPTR 
relocation to that GOT entry. The dynamic loader needs to create the 
function descriptor when it processes the FPTR relocation.

Lazy binding requires a bit of cleverness. We do it by dynamically 
creating lazy-binding stubs that load a module id and a PLT index into 
registers, then branch to a common bind-on-reference routine.


Cary Coutant
HP-UX Runtime Architect


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Cary Coutant <cary@cup.hp.com> writes:

> Lazy binding requires a bit of cleverness. We do it by dynamically 
> creating lazy-binding stubs that load a module id and a PLT index into 
> registers, then branch to a common bind-on-reference routine.

We will have our own lazy-binding mechanisms (close to Sun's
approach).  So don't plan to bring this in.  You can live without it
for now.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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Cary Coutant <cary@cup.hp.com> writes:

> The model used for PA-RISC is a a consequence of the segmented 
> architecture, where the text and data segments are not adjacent.

For what it's worth our ELF32 runtime conventions do not use
segmentation at all.  That is, in user space, %sr0 and %sr4 through
%sr7 are all set to the same space identifier.

This is in keeping with accepted practice on other 32-bit Linux
platforms where segmentation is used only to provide separate 4G
address spaces for the kernel and userland.

> As a result, a procedure cannot materialize its own gp, since there
> is no fixed pc-relative offset between the text and data. This means
> that the caller must materialize the gp prior to the call, or as
> part of the call.

I can see some advantages in this even with a non-segmented runtime
architecture - theoretically, having the GP be managed by the caller
rather than the callee should make intramodule calls in
position-independent code more efficient.  (I think so at least)

One thing I have not figured out is how the GP is "bootstrapped" in
the startup code for the dynamic linker itself - how does ELF64 on
HP/UX deal with this problem?

> By the way, this model is also being used for IA-64. You may be able to 
> leverage some of the work being done for ld.so on that platform.

Thanks for the tip... as it turns out, the author of the dynamic
linker support for GNU libc on IA-64 sits two cubes away from me, so
that should be quite helpful indeed :-)

> Lazy binding requires a bit of cleverness. We do it by dynamically 
> creating lazy-binding stubs that load a module id and a PLT index into 
> registers, then branch to a common bind-on-reference routine.

For the moment I am not going to worry about lazy binding at all,
though it is certainly a requirement in the future.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Alan Modra <alan@linuxcare.com.au>
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On 24 Jul 2000, David Huggins-Daines wrote:

> Cary Coutant <cary@cup.hp.com> writes:
> 
> > The model used for PA-RISC is a a consequence of the segmented 
> > architecture, where the text and data segments are not adjacent.
> 
> For what it's worth our ELF32 runtime conventions do not use
> segmentation at all.  That is, in user space, %sr0 and %sr4 through
> %sr7 are all set to the same space identifier.

Hmm, I haven't been making this assumption in the elf32-hppa binutils
shared lib support.  If userland uses the same space id, then import
stubs can be simplified quite a bit, and there's no need for export stubs.

> This is in keeping with accepted practice on other 32-bit Linux
> platforms where segmentation is used only to provide separate 4G
> address spaces for the kernel and userland.

On parisc, doesn't a single space id limit your address space to 1G?

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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In-Reply-To: <Pine.LNX.4.21.0007251104320.6775-100000@front.linuxcare.com.au>; from Alan Modra on Tue, Jul 25, 2000 at 11:12:28AM +1000
Xref: news.gmane.org gmane.linux.ports.parisc:7614

On Tue, Jul 25, 2000 at 11:12:28AM +1000, Alan Modra wrote:
> On parisc, doesn't a single space id limit your address space to 1G?

that was what I thought too, but it turns out that the quarter of the
space which is addressed is the same as the top 2 bits of the data
register.  ie, if we were using 4 distinct spaces, we would see the
following usage pattern:

xx......
..xx....
....xx..
......xx

so using just one space register for the entire process doesn't affect us
at all.

http://devresource.hp.com/devresource/Docs/Refs/PA1_1/acd-17.html

is an authoritive source for this information:

"Only one fourth of the space is directly addressable by the base register
with short pointers and corresponds to the quadrant selected by the
upper two bits."

-- 
Revolutions do not require corporate support.


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] PIC code generation in gcc/binutils
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Xref: news.gmane.org gmane.linux.ports.parisc:7615

On Tue, Jul 25, 2000 at 11:12:28AM +1000, Alan Modra wrote:
> On parisc, doesn't a single space id limit your address space to 1G?

that was what I thought too, but it turns out that the quarter of the
space which is addressed is the same as the top 2 bits of the data
register.  ie, if we were using 4 distinct spaces, we would see the
following usage pattern:

xx......
..xx....
....xx..
......xx

so using just one space register for the entire process doesn't affect us
at all.

http://devresource.hp.com/devresource/Docs/Refs/PA1_1/acd-17.html

is an authoritive source for this information:

"Only one fourth of the space is directly addressable by the base register
with short pointers and corresponds to the quadrant selected by the
upper two bits."

-- 
Revolutions do not require corporate support.


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [hppa-linux] Qn on PA-RISC Page tables and TLB
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Xref: news.gmane.org gmane.linux.ports.parisc:7616

Kumar wrote:
...
> 	Other interesting point to note is that PA-RISC does not
> 	define how many entries in the table etc. Very much unlike
> 	x86.

The CPU pdir can vary in size. For a HW walker, it must be allocated
in physically configuous memory, this pretty much fixes the size
once it's setup.

The size of the CPU PDIR is determined mostly by memory size, amount
of I/O space required (Legacy PA requires memory mapped I/O), and
some fudge factor. Sizing it to allow a HW walker find all physical
mappings is good for performance. I assume this also helps SW TLB
handlers by reducing hash collisions. However, I'm not the expert
on CPU pdir.

K, C-class, and T600 also have an I/O pdir. This is only useful for
systems with more than 4GB (3.75GB?) of physical memory since PA
(and current PCI devices) can only use 32-bits of addressing.
The I/O pdir size depends on how much I/O one wants to allow mapped
at any given time and it too must be physically contigous.
16/th to 8th of physical memory seems to be a pretty good rule of thumb.

For now, I would say ignore the I/O pdir until hppa-linux has a
login prompt. If the OS doesn't use the I/O pdir, it just implies
the DMA is not coherent with Processor activity - just like on
an x86 box. I haven't studied Linux I/O subsytem enough to know
where/how to integrate support for an I/O pdir. I hope the HP-UX
docs released help explain this - search for keyword "CDIO".

grant


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From: Cary Coutant <cary@cup.hp.com>
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Subject: Re: [parisc-linux] PIC code generation in gcc/binutils
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>I realize that the 64-bit runtime 
>architecture is weak in the dynamic loading area, ...

By the way, I meant the documentation, not the runtime architecture 
itself!


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>I can see some advantages in this even with a non-segmented runtime
>architecture - theoretically, having the GP be managed by the caller
>rather than the callee should make intramodule calls in
>position-independent code more efficient.  (I think so at least)

Yes, it does have that advantage, and we take advantage of it when we can 
determine at compile time that the callee is in the same load module.

>One thing I have not figured out is how the GP is "bootstrapped" in
>the startup code for the dynamic linker itself - how does ELF64 on
>HP/UX deal with this problem?

The kernel loader passes a "load info" record to the dynamic loader as 
the fourth parameter (after argc, argv, and envp). This record contains, 
among other things, the load addresses of the dynamic loader's text and 
data segments. The dynamic loader's startup code materializes its own gp 
based on the base address of its data segment.

-cary


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] signal handling
Date: 26 Jul 2000 10:07:56 -0400
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Hi,

I was quite shocked to discover that we appear to have no signal
handling code in the Linux/parisc kernel whatsoever.

Is anyone planning to do this anytime soon?  It's unbelievably
annoying to debug userspace when you have to push TOC every single
time your program segfaults.

Never mind the fact that we can't really claim to have a working
kernel if it lacks basic things like signals.

I am formally threatening to do it wrong (since I don't know what I am
doing) if nobody steps forward to do it correctly within the next
hour.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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> I was quite shocked to discover that we appear to have no signal
> handling code in the Linux/parisc kernel whatsoever.
>
> Is anyone planning to do this anytime soon?  It's unbelievably
> annoying to debug userspace when you have to push TOC every single
> time your program segfaults.
>
> Never mind the fact that we can't really claim to have a working
> kernel if it lacks basic things like signals.
>
> I am formally threatening to do it wrong (since I don't know what I am
> doing) if nobody steps forward to do it correctly within the next
> hour.

I had hoped to work on this this week, along with moving the syscall
gateway page out of user space (for native linux apps).  However, I have
not been able to get my C3000 to boot.  Every time I fix a problem, I find
another (right now it starts sash, but I don't get a shell prompt).
Perhaps if I can find an A180 today I can use that for a while.  At this
point I'm not hopeful that I will get it done before Friday, when I leave
for a week of vacation.  So, go ahead and do it "wrong" and I'll check
it over when I get back.

John Marvin
jsm@fc.hp.com


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From: Andrew Shugg <andrew@neep.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Weekly report?
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There hasn't been a "weekly" report posted for ages.  Not since May 12th
if the website is to be believed (though I hazily remember a couple of
report-like posts to this list since then).

What's going on?

I like reports.  =)

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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To: Andrew Shugg <andrew@neep.com.au>
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Hi Andrew,  we are in the process of updating all pages on the external
web site, i.e.., recipes, outdated links, etc.  Weekly status updates
are coming we promise!

Andrew Shugg wrote:
> 
> There hasn't been a "weekly" report posted for ages.  Not since May 12th
> if the website is to be believed (though I hazily remember a couple of
> report-like posts to this list since then).
> 
> What's going on?
> 
> I like reports.  =)
> 
> Andrew.
> 
> --
> Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/
> 
>   "Just remember Basil, there's always someone worse off than yourself."
>   "Oh, really?  I'd like to meet him ... I could do with a good laugh."
>                  [ Sybil and Basil Fawlty, "Fawlty Towers" ]
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
Jane Vinet, Project Manager, Linuxcare, Inc.
613.562.9260 (tel), 613.562.9700 fax
jvinet@linuxcare.com, http://www.linuxcare.com/


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: A simple question about readw, readw and the like
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Hi all,
Very nice summary of how linux drivers should use pci_dev->resources
and a peek at how user space will access PCI MEM space (ie Framebuffer).
(The latter is also a problem for HP-UX).

grant

----- Forwarded message from "David S. Miller" <davem@redhat.com> -----

Date: 	Thu, 27 Jul 2000 15:35:30 -0700
From: "David S. Miller" <davem@redhat.com>
To: abramo@alsa-project.org
CC: fw@fwconsult.com, linux-kernel@vger.rutgers.edu
In-reply-to: <39802159.1D04B244@alsa-project.org> (message from Abramo Bagnara
	on Thu, 27 Jul 2000 13:47:37 +0200)
Subject: Re: A simple question about readw, readw and the like
Precedence: bulk
X-Loop: 	majordomo@vger.rutgers.edu

   Date: Thu, 27 Jul 2000 13:47:37 +0200
   From: Abramo Bagnara <abramo@alsa-project.org>

   Does this means that there is no way to mmap the PCI IO space on
   any platform other than ia32?

One needs to be a bit more specific for me to give you an
answer :-)

Inside the kernel:

1) PCI I/O space is accessed by obtaining the base address via the
   appropriate pci_dev->resource[xxx] value, and feeding that directly
   into inb/inw/inl and friends.

2) PCI MEM space is accessed by obtaining the opaque MEM base cookie
   in pci_dev->resource[xxx], mapping it with ioremap(cookie), and
   feeding what you obtain from that to readw and friends.  When
   done with the MEM space area, you iounmap it.

For userspace things are much different.  It is nearly impossible to
be %100 portable for PCI I/O space.  On x86 you can just do inb
etc. instructions on the base address register value.  This fails to
work on just about every other system, you must actually mmap() the
PCI I/O space area needed on PPC, MIPS, Alpha, Sparc64, etc.

Honestly we lack a truly portable way to do this, and I am working on
a solution which will allow you to portably mmap I/O and MEM space PCI
areas via mmap() on /proc/bus/pci/xxx device nodes.  Just plain mmap
on /dev/mem is not a solution because that fails to work for 32-bit
userspace running on a 64-bit kernel, and besides this would require
that we give the user some way to find the base of I/O and MEM space
for a particular PCI controller in the machine.  The /proc/bus/pci
mmap solution hides all of this mess from userspace.

Later,
David S. Miller
davem@redhat.com


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From: Paul Bame <bame@noam.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New cross-compiler
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I just put a new cross compiler tarball at
ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20000728.tgz
As usual, it's built for the Debian 'potato' release, and will probably
work on most fairly recent Linux boxes.

This is the full userspace-capable cross compiler, which is also
required to build palo these days (palo needs the x-compiler to have
a full set of header files).  It built sash, the kernel, and palo.

It does not include any of the shared library stuff currently under
development.

	-Paul Bame


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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New Linux Gateway Page
Date: Sat, 29 Jul 2000 01:11:21 -0600 (MDT)
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I recently checked in changes to move the linux gateway page out of the
user address space and into the kernel address space (this was discussed
many months ago on this list).

Temporarily, to make the transition easier, the old linux gateway page
still exists.  I'm hoping that Paul Bame/Matt Taggart will build a new set
of programs for ramdisks and nfsroot's.  I also assume that one of them
will checkin the changes to glibc to support the new gateway page and post
a new tool chain tarball (Paul has already built a tool chain for it,
which I used for some testing, so he just needs to check the stuff in once
he finishes testing).  Once everything is switched over, I can remove the
old gateway page.

Some notes regarding the changes:

1)I modified the kernel version of unistd.h to reflect the new syscall
  method.

2) The new syscall method relies on the kernel setting sr2 to point
to the space of the new gateway page. If the user program modifies sr2
then syscalls will stop working for that process. Note that this
applies only to Linux native apps.

3) Once I remove the old gateway page I will also move the setup of
the HP-UX gateway page into the som specific code, so only som executables
will have this page sitting in the middle of their address space.

4) During the transition, arch/parisc/kernel/syscall.S has code for the
two (old and new) linux gateway pages essentially duplicated. If you
change code for one page, try to remember to change it for the other
page.

5) Even though signals currently use a signal return path on the old
gateway page, signals should still work using the new gateway page (as
long as the old gateway page remains around). I'll need to make some
changes before I can actually remove the old linux gateway page.

6) NOTE:  The location of the linux gateway page is mapped to virtual page
zero in the kernel space.  Since gateway pages are execute only, this page
will still serve the purpose of trapping null pointer dereferences.
HOWEVER, the trap type will be different.  Before, a null pointer
dereference would cause a trap type 15 (Data TLB Miss), now it will
produce a trap type 26 (Data memory access rights violation).  Note that
execution through a null indirect function pointer (while executing in the
kernel) will hit a series of break instructions at the beginning of the
page (the actual syscall entry point starts at 0x100).  Right now break
instructions just cause a "Halted" message and a register dump.  I'll fix
that when I get back from vacation (if someone doesn't beat me to it).

I'll be on vacation for the next week (doing rocketry for a whole week
at the NAR's national launch/competition in Canon City, CO). I'll be
back the week following.

John Marvin
jsm@fc.hp.com


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From: Matthew Hudson <mhudson@home.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] The Kxx0 machines and other questions.
Date: Sun, 30 Jul 2000 19:08:18 -0500
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> On Mon, Jul 24, 2000 at 11:53:06AM -0500, Matthew Hudson wrote:
> > Now on subject. K200 working in Linux and if so
> > is there SMP support yet?
> 
> we're not really interested in supporting the k class right now.
> it's pretty similar to early C/J class (C100, C110, J200, J210), but it
> has some `interesting' devices in it that may be hard to support (the
> SCSI adapter looks slightly strange).  we don't have any SMP support yet
> and this machine won't be high on the priority list when we do start
> working on SMP.  i guess you're going to have to join in and do some
> hacking yourself :-)

Like I have the time for this, but... (famous last words)

Since I haven't had the time (yet) to attempt booting into Linux
with this monster what is its status? Non-functional or?
Where can I get some documentation for the various hardware in
this machine.

What is the status of the J210XC and will I be able to create
a functional Linux environment for it(the J210) if I wanted to
start coding? (currently running 10.20)

-Matt


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From: Cary Coutant <cary@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] syscall work
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I'd suggest *not* using the same gateway page address as HP-UX. If you 
do, you won't be able to develop a later kernel extension to support 
HP-UX binaries, unless you allocate syscall numbers carefully.


Cary Coutant
Hewlett-Packard Co.
Application Delivery Lab


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] The Kxx0 machines and other questions.
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Matthew Hudson wrote:
> Mathew Wilcox (?) wrote:
> > we're not really interested in supporting the k class right now.
> > it's pretty similar to early C/J class (C100, C110, J200, J210), but it
> > has some `interesting' devices in it that may be hard to support (the
> > SCSI adapter looks slightly strange).  we don't have any SMP support yet
> > and this machine won't be high on the priority list when we do start
> > working on SMP.  i guess you're going to have to join in and do some
> > hacking yourself :-)
> 
> Like I have the time for this, but... (famous last words)
> 
> Since I haven't had the time (yet) to attempt booting into Linux
> with this monster what is its status? Non-functional or?
> Where can I get some documentation for the various hardware in
> this machine.

Non-functional since U2/Uturn code is not ready yet (I'm working on it)
and not documented (let's not go there again right now). And even
if it were ready, I need to hack in some sort of an "I/O tree"
in order to support more than one U2/Uturn. K-class can have
multiple U2/Uturns.

The core I/O board has a NCR 53c720 chip with zalon - Richard Hirst
is working on that already. AFIAK, Zalon isn't documented but it's trivial
to initialize and the real problem is support for c720 chip in linux.

AFAICT, Built-in LAN, PS/2, serial ports, and SE SCSI are off a LASI.
Same chip as what's documented for the A180/712/et al.
But the firmware might be reporting them differently...someone who
cares will have to figure this out.

I doubt documents or code for the gecko-boa (GSC to HP-PB bus converter)
will ever get published....and even if it did, getting docs for the HP-PB
(aka NIO) devices is another huge hurdle. Look for a "HARRIER"
(card carrier for K-class, provides 4 "gsc" "slots") if you don't already
have one. At least some of the GSC devices (like tachyon, c720) will
get or are supported already.

> What is the status of the J210XC and will I be able to create
> a functional Linux environment for it(the J210) if I wanted to
> start coding? (currently running 10.20)

Once the U2/Uturn support is in place and user space stabilizes, yes.

Audio and graphics continue to be a problem WRT documentation and code.
I don't know what's up with "WAX" (EISA) support.

Matt, I didn't see a J210XC in the HW database.
(http://www.thepuffingroup.com/parisc/hw.html)
Since you asked about status and I've written this detailed reply,
I'd consider you a real dork at this point if you didn't enter
the J210XC into the HW database.  Could you please?
(thanks in advance :^)

grant

Grant Grundler
Unix Development Lab
+1.408.447.7253


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> 
> Matt, I didn't see a J210XC in the HW database.
> (http://www.thepuffingroup.com/parisc/hw.html)
> Since you asked about status and I've written this detailed reply,
> I'd consider you a real dork at this point if you didn't enter
> the J210XC into the HW database.  Could you please?
> (thanks in advance :^)

I will as soon as I figure out how. ;-)

-Matt


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From: Paul Bame <bame@noam.fc.hp.com>
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Subject: Re: [parisc-linux] New Linux Gateway Page
Date: Mon, 31 Jul 2000 09:11:09 -0600
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I just published a tool chain using the new gateway page, and
a libc to update the 7/28 one if anyone happens to have that.

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/README

	-Paul Bame


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From: Tara Dear <tdear@linuxcare.com>
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Subject: [parisc-linux] recipe
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This is a multi-part message in MIME format.
--------------F05DCDB7773AE4839A821D77
Content-Type: text/plain; charset=us-ascii
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dhd asked me to post this recipe the group.  I worked for me.

-TARA



--------------F05DCDB7773AE4839A821D77
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 name="recipe"
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 filename="recipe"

#!/bin/sh -e

PREFIX=/home/tdear/parisc
HOST=i386-linux

export CVS_RSH=ssh
echo Checking for CVS directories
test -d binutils-2.10
test -d gcc
test -d glibc
test -d linux-2.3
test -f include.tar.gz

echo Updating binutils-2.10
(cd binutils-2.10 && cvs update -dP)
echo Building binutils in `pwd`/binutils-build
rm -rf binutils-build
mkdir binutils-build
cd binutils-build
../binutils-2.10/configure --disable-nls --target=hppa-linux \
	--prefix=$PREFIX
make && make install

# Now set this up to point to the place we installed binutils
export PATH=$PATH:$PREFIX/bin

cd ..
echo Updating gcc
(cd gcc && cvs update -dP)
echo Building gcc in `pwd`/gcc-build
rm -rf gcc-build
mkdir gcc-build
cd gcc-build
../gcc/configure --disable-nls --target=hppa-linux --prefix=$PREFIX \
	--enable-languages=c
make || true
make install

cd ..
echo Updating glibc
(cd glibc && cvs update -dP)
# We need the most recent include files
echo Updating linux-2.3
(cd linux-2.3 && cvs update -dP)
echo Updating header files in $PREFIX/hppa-linux/include/{linux,asm}
rm -rf $PREFIX/hppa-linux/include/{linux,asm}
cp -a linux-2.3/include/linux $PREFIX/hppa-linux/include
cp -a linux-2.3/include/asm-parisc $PREFIX/hppa-linux/include/asm
echo Building glibc in `pwd`/glibc-build
rm -rf glibc-build
mkdir glibc-build
cd glibc-build
../glibc/configure --disable-nls --host=hppa-linux --build=$HOST \
	--disable-cvs --disable-sanity-checks --disable-shared \
	--disable-profile --enable-static-nss --prefix=$PREFIX/hppa-linux \
	--with-headers=`pwd`/../linux-2.3/include
make
make install

cd ..
echo Rebuilding GCC with C++ enabled
rm -rf gcc-build
mkdir gcc-build
cd gcc-build
../gcc/configure --disable-nls --target=hppa-linux --prefix=$PREFIX \
	--enable-languages=c,c++
make
make install

--------------F05DCDB7773AE4839A821D77--


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Tara Dear wrote:
> dhd asked me to post this recipe the group.  I worked for me.

Tara, dhd,

The first time I ran this script, it failed with a "permission
denied" error. This is on a debian potato i686-linux host.
I've appended the output that was still in scrollback.

The second time I ran recipe it worked fine.
I delete $PREFIX and ran the recipe a third time and that worked too.
I'm guessing on the first run something wasn't kosher in my env.

I've also included the first patches for the recipe.

grant


grundler <552>diff recipe.tara.orig recipe.tara
3c3,9
< PREFIX=/home/tdear/parisc
---
> #
> # build 32-bit toolchain
> #
> PREFIX=/opt/puffin/
> 
> # make sure we don't pick up other tools
> PATH=/usr/local/bin:/usr/bin:/bin
6d11
< export CVS_RSH=ssh



...
mv -f /linux/grundler/glibc-build/stdio-common/fscanf.T /linux/grundler/glibc-build/stdio-common/fscanf.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
bc-build/../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,vfscanf\.o,/linux/grundler/glibc-build/stdio-common/vfscanf.o /linux/grundler/glibc-build/stdio-common/vfscanf.os /linux/grundler/glibc-build/stdio-common/vfscanf.op /linux/grundler/glibc-build/stdio-common/vfscanf.og /linux/grundler/glibc-build/stdio-common/vfscanf.ob /linux/grundler/glibc-build/stdio-common/vfscanf.oS /linux/grundler/glibc-build/stdio-common/vfscanf.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/vfscanf.T
mv -f /linux/grundler/glibc-build/stdio-common/vfscanf.T /linux/grundler/glibc-build/stdio-common/vfscanf.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,dprintf\.o,/linux/grundler/glibc-build/stdio-common/dprintf.o /linux/grundler/glibc-build/stdio-common/dprintf.os /linux/grundler/glibc-build/stdio-common/dprintf.op /linux/grundler/glibc-build/stdio-common/dprintf.og /linux/grundler/glibc-build/stdio-common/dprintf.ob /linux/grundler/glibc-build/stdio-common/dprintf.oS /linux/grundler/glibc-build/stdio-common/dprintf.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/dprintf.T
mv -f /linux/grundler/glibc-build/stdio-common/dprintf.T /linux/grundler/glibc-build/stdio-common/dprintf.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,asprintf\.o,/linux/grundler/glibc-build/stdio-common/asprintf.o /linux/grundler/glibc-build/stdio-common/asprintf.os /linux/grundler/glibc-build/stdio-common/asprintf.op /linux/grundler/glibc-build/stdio-common/asprintf.og /linux/grundler/glibc-build/stdio-common/asprintf.ob /linux/grundler/glibc-build/stdio-common/asprintf.oS /linux/grundler/glibc-build/stdio-common/asprintf.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/asprintf.T
mv -f /linux/grundler/glibc-build/stdio-common/asprintf.T /linux/grundler/glibc-build/stdio-common/asprintf.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
ux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,sprintf\.o,/linux/grundler/glibc-build/stdio-common/sprintf.o /linux/grundler/glibc-build/stdio-common/sprintf.os /linux/grundler/glibc-build/stdio-common/sprintf.op /linux/grundler/glibc-build/stdio-common/sprintf.og /linux/grundler/glibc-build/stdio-common/sprintf.ob /linux/grundler/glibc-build/stdio-common/sprintf.oS /linux/grundler/glibc-build/stdio-common/sprintf.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/sprintf.T
mv -f /linux/grundler/glibc-build/stdio-common/sprintf.T /linux/grundler/glibc-build/stdio-common/sprintf.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
d/../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,snprintf\.o,/linux/grundler/glibc-build/stdio-common/snprintf.o /linux/grundler/glibc-build/stdio-common/snprintf.os /linux/grundler/glibc-build/stdio-common/snprintf.op /linux/grundler/glibc-build/stdio-common/snprintf.og /linux/grundler/glibc-build/stdio-common/snprintf.ob /linux/grundler/glibc-build/stdio-common/snprintf.oS /linux/grundler/glibc-build/stdio-common/snprintf.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/snprintf.T
mv -f /linux/grundler/glibc-build/stdio-common/snprintf.T /linux/grundler/glibc-build/stdio-common/snprintf.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
nux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,printf\.o,/linux/grundler/glibc-build/stdio-common/printf.o /linux/grundler/glibc-build/stdio-common/printf.os /linux/grundler/glibc-build/stdio-common/printf.op /linux/grundler/glibc-build/stdio-common/printf.og /linux/grundler/glibc-build/stdio-common/printf.ob /linux/grundler/glibc-build/stdio-common/printf.oS /linux/grundler/glibc-build/stdio-common/printf.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/printf.T
mv -f /linux/grundler/glibc-build/stdio-common/printf.T /linux/grundler/glibc-build/stdio-common/printf.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
2.3/include  -include ../include/libc-symbols.h      | sed -e 's,fprintf\.o,/linux/grundler/glibc-build/stdio-common/fprintf.o /linux/grundler/glibc-build/stdio-common/fprintf.os /linux/grundler/glibc-build/stdio-common/fprintf.op /linux/grundler/glibc-build/stdio-common/fprintf.og /linux/grundler/glibc-build/stdio-common/fprintf.ob /linux/grundler/glibc-build/stdio-common/fprintf.oS /linux/grundler/glibc-build/stdio-common/fprintf.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/fprintf.T
mv -f /linux/grundler/glibc-build/stdio-common/fprintf.T /linux/grundler/glibc-build/stdio-common/fprintf.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
d/../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,printf_size\.o,/linux/grundler/glibc-build/stdio-common/printf_size.o /linux/grundler/glibc-build/stdio-common/printf_size.os /linux/grundler/glibc-build/stdio-common/printf_size.op /linux/grundler/glibc-build/stdio-common/printf_size.og /linux/grundler/glibc-build/stdio-common/printf_size.ob /linux/grundler/glibc-build/stdio-common/printf_size.oS /linux/grundler/glibc-build/stdio-common/printf_size.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/printf_size.T
mv -f /linux/grundler/glibc-build/stdio-common/printf_size.T /linux/grundler/glibc-build/stdio-common/printf_size.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
isystem /linux/grundler/glibc-build/../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,printf_fphex\.o,/linux/grundler/glibc-build/stdio-common/printf_fphex.o /linux/grundler/glibc-build/stdio-common/printf_fphex.os /linux/grundler/glibc-build/stdio-common/printf_fphex.op /linux/grundler/glibc-build/stdio-common/printf_fphex.og /linux/grundler/glibc-build/stdio-common/printf_fphex.ob /linux/grundler/glibc-build/stdio-common/printf_fphex.oS /linux/grundler/glibc-build/stdio-common/printf_fphex.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/printf_fphex.T
mv -f /linux/grundler/glibc-build/stdio-common/printf_fphex.T /linux/grundler/glibc-build/stdio-common/printf_fphex.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
./linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,printf-prs\.o,/linux/grundler/glibc-build/stdio-common/printf-prs.o /linux/grundler/glibc-build/stdio-common/printf-prs.os /linux/grundler/glibc-build/stdio-common/printf-prs.op /linux/grundler/glibc-build/stdio-common/printf-prs.og /linux/grundler/glibc-build/stdio-common/printf-prs.ob /linux/grundler/glibc-build/stdio-common/printf-prs.oS /linux/grundler/glibc-build/stdio-common/printf-prs.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/printf-prs.T
mv -f /linux/grundler/glibc-build/stdio-common/printf-prs.T /linux/grundler/glibc-build/stdio-common/printf-prs.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,reg-printf\.o,/linux/grundler/glibc-build/stdio-common/reg-printf.o /linux/grundler/glibc-build/stdio-common/reg-printf.os /linux/grundler/glibc-build/stdio-common/reg-printf.op /linux/grundler/glibc-build/stdio-common/reg-printf.og /linux/grundler/glibc-build/stdio-common/reg-printf.ob /linux/grundler/glibc-build/stdio-common/reg-printf.oS /linux/grundler/glibc-build/stdio-common/reg-printf.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/reg-printf.T
mv -f /linux/grundler/glibc-build/stdio-common/reg-printf.T /linux/grundler/glibc-build/stdio-common/reg-printf.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
ibc-build/../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,printf_fp\.o,/linux/grundler/glibc-build/stdio-common/printf_fp.o /linux/grundler/glibc-build/stdio-common/printf_fp.os /linux/grundler/glibc-build/stdio-common/printf_fp.op /linux/grundler/glibc-build/stdio-common/printf_fp.og /linux/grundler/glibc-build/stdio-common/printf_fp.ob /linux/grundler/glibc-build/stdio-common/printf_fp.oS /linux/grundler/glibc-build/stdio-common/printf_fp.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/printf_fp.T
mv -f /linux/grundler/glibc-build/stdio-common/printf_fp.T /linux/grundler/glibc-build/stdio-common/printf_fp.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
3/include  -include ../include/libc-symbols.h      | sed -e 's,vprintf\.o,/linux/grundler/glibc-build/stdio-common/vprintf.o /linux/grundler/glibc-build/stdio-common/vprintf.os /linux/grundler/glibc-build/stdio-common/vprintf.op /linux/grundler/glibc-build/stdio-common/vprintf.og /linux/grundler/glibc-build/stdio-common/vprintf.ob /linux/grundler/glibc-build/stdio-common/vprintf.oS /linux/grundler/glibc-build/stdio-common/vprintf.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/vprintf.T
mv -f /linux/grundler/glibc-build/stdio-common/vprintf.T /linux/grundler/glibc-build/stdio-common/vprintf.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
er/glibc-build/../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,vfprintf\.o,/linux/grundler/glibc-build/stdio-common/vfprintf.o /linux/grundler/glibc-build/stdio-common/vfprintf.os /linux/grundler/glibc-build/stdio-common/vfprintf.op /linux/grundler/glibc-build/stdio-common/vfprintf.og /linux/grundler/glibc-build/stdio-common/vfprintf.ob /linux/grundler/glibc-build/stdio-common/vfprintf.oS /linux/grundler/glibc-build/stdio-common/vfprintf.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/vfprintf.T
mv -f /linux/grundler/glibc-build/stdio-common/vfprintf.T /linux/grundler/glibc-build/stdio-common/vfprintf.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
r/glibc-build/../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,itowa-digits\.o,/linux/grundler/glibc-build/stdio-common/itowa-digits.o /linux/grundler/glibc-build/stdio-common/itowa-digits.os /linux/grundler/glibc-build/stdio-common/itowa-digits.op /linux/grundler/glibc-build/stdio-common/itowa-digits.og /linux/grundler/glibc-build/stdio-common/itowa-digits.ob /linux/grundler/glibc-build/stdio-common/itowa-digits.oS /linux/grundler/glibc-build/stdio-common/itowa-digits.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/itowa-digits.T
mv -f /linux/grundler/glibc-build/stdio-common/itowa-digits.T /linux/grundler/glibc-build/stdio-common/itowa-digits.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
ild/../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,itoa-digits\.o,/linux/grundler/glibc-build/stdio-common/itoa-digits.o /linux/grundler/glibc-build/stdio-common/itoa-digits.os /linux/grundler/glibc-build/stdio-common/itoa-digits.op /linux/grundler/glibc-build/stdio-common/itoa-digits.og /linux/grundler/glibc-build/stdio-common/itoa-digits.ob /linux/grundler/glibc-build/stdio-common/itoa-digits.oS /linux/grundler/glibc-build/stdio-common/itoa-digits.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/itoa-digits.T
mv -f /linux/grundler/glibc-build/stdio-common/itoa-digits.T /linux/grundler/glibc-build/stdio-common/itoa-digits.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
bc-build/../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,_i18n_itowa\.o,/linux/grundler/glibc-build/stdio-common/_i18n_itowa.o /linux/grundler/glibc-build/stdio-common/_i18n_itowa.os /linux/grundler/glibc-build/stdio-common/_i18n_itowa.op /linux/grundler/glibc-build/stdio-common/_i18n_itowa.og /linux/grundler/glibc-build/stdio-common/_i18n_itowa.ob /linux/grundler/glibc-build/stdio-common/_i18n_itowa.oS /linux/grundler/glibc-build/stdio-common/_i18n_itowa.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/_i18n_itowa.T
mv -f /linux/grundler/glibc-build/stdio-common/_i18n_itowa.T /linux/grundler/glibc-build/stdio-common/_i18n_itowa.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
/glibc-build/../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,_i18n_itoa\.o,/linux/grundler/glibc-build/stdio-common/_i18n_itoa.o /linux/grundler/glibc-build/stdio-common/_i18n_itoa.os /linux/grundler/glibc-build/stdio-common/_i18n_itoa.op /linux/grundler/glibc-build/stdio-common/_i18n_itoa.og /linux/grundler/glibc-build/stdio-common/_i18n_itoa.ob /linux/grundler/glibc-build/stdio-common/_i18n_itoa.oS /linux/grundler/glibc-build/stdio-common/_i18n_itoa.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/_i18n_itoa.T
mv -f /linux/grundler/glibc-build/stdio-common/_i18n_itoa.T /linux/grundler/glibc-build/stdio-common/_i18n_itoa.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
d/../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,_itowa\.o,/linux/grundler/glibc-build/stdio-common/_itowa.o /linux/grundler/glibc-build/stdio-common/_itowa.os /linux/grundler/glibc-build/stdio-common/_itowa.op /linux/grundler/glibc-build/stdio-common/_itowa.og /linux/grundler/glibc-build/stdio-common/_itowa.ob /linux/grundler/glibc-build/stdio-common/_itowa.oS /linux/grundler/glibc-build/stdio-common/_itowa.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/_itowa.T
mv -f /linux/grundler/glibc-build/stdio-common/_itowa.T /linux/grundler/glibc-build/stdio-common/_itowa.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
inux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,_itoa\.o,/linux/grundler/glibc-build/stdio-common/_itoa.o /linux/grundler/glibc-build/stdio-common/_itoa.os /linux/grundler/glibc-build/stdio-common/_itoa.op /linux/grundler/glibc-build/stdio-common/_itoa.og /linux/grundler/glibc-build/stdio-common/_itoa.ob /linux/grundler/glibc-build/stdio-common/_itoa.oS /linux/grundler/glibc-build/stdio-common/_itoa.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/_itoa.T
mv -f /linux/grundler/glibc-build/stdio-common/_itoa.T /linux/grundler/glibc-build/stdio-common/_itoa.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
/grundler/glibc-build/../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,cuserid\.o,/linux/grundler/glibc-build/stdio-common/cuserid.o /linux/grundler/glibc-build/stdio-common/cuserid.os /linux/grundler/glibc-build/stdio-common/cuserid.op /linux/grundler/glibc-build/stdio-common/cuserid.og /linux/grundler/glibc-build/stdio-common/cuserid.ob /linux/grundler/glibc-build/stdio-common/cuserid.oS /linux/grundler/glibc-build/stdio-common/cuserid.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/cuserid.T
mv -f /linux/grundler/glibc-build/stdio-common/cuserid.T /linux/grundler/glibc-build/stdio-common/cuserid.d 
.././scripts/mkinstalldirs /linux/grundler/glibc-build/stdio-common
/grundler/glibc-build/../linux-2.3/include  -include ../include/libc-symbols.h      | sed -e 's,ctermid\.o,/linux/grundler/glibc-build/stdio-common/ctermid.o /linux/grundler/glibc-build/stdio-common/ctermid.os /linux/grundler/glibc-build/stdio-common/ctermid.op /linux/grundler/glibc-build/stdio-common/ctermid.og /linux/grundler/glibc-build/stdio-common/ctermid.ob /linux/grundler/glibc-build/stdio-common/ctermid.oS /linux/grundler/glibc-build/stdio-common/ctermid.d,' -e 's@ /linux/grundler/glibc-build/@ $(common-objpfx)@g' -e 's@^/linux/grundler/glibc-build/@$(common-objpfx)@g' > /linux/grundler/glibc-build/stdio-common/ctermid.T
mv -f /linux/grundler/glibc-build/stdio-common/ctermid.T /linux/grundler/glibc-build/stdio-common/ctermid.d 
make[2]: Leaving directory `/linux/grundler/glibc/stdio-common'
make[2]: Entering directory `/linux/grundler/glibc/stdio-common'
mawk -f ../sysdeps/gnu/errlist.awk ../manual/errno.texi > ../sysdeps/gnu/errlist.c-tmp
chmod a-w ../sysdeps/gnu/errlist.c-tmp
mv -f ../sysdeps/gnu/errlist.c-tmp ../sysdeps/gnu/errlist.c
test ! -d CVS || cvs commit -m'Regenerated from ../sysdeps/gnu/errlist.awk ../manual/errno.texi' ../sysdeps/gnu/errlist.c
Permission denied
make[2]: *** [../sysdeps/gnu/errlist.c] Error 1
make[2]: Leaving directory `/linux/grundler/glibc/stdio-common'
make[1]: *** [stdio-common/subdir_lib] Error 2
make[1]: Leaving directory `/linux/grundler/glibc'
make: *** [all] Error 2


From - Thu Nov 08 21:13:00 2018
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From: Andrew Park <apark@cdf.toronto.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 712/80
Date: Tue, 1 Aug 2000 12:00:10 -0400 (EDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:7633

Hi, all

I have a 712/80, it does not have memory.  I've been looking around
to buy some, but I still do not know the part number to place in an
order.  Does anybody know the part number of the memory for a 712/80?
Thanks


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
Team BlueShirt Developer                             www.blueshirt.org |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------


From - Thu Nov 08 21:13:01 2018
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From: Patrik Pira <papira@telia.com>
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Subject: Re: [parisc-linux] 712/80
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Xref: news.gmane.org gmane.linux.ports.parisc:7634

I have 16MB SIMs for my 712/60, they have part no A2576-60001 according
to the sticker on them.

Andrew Park wrote:
> 
> Hi, all
> 
> I have a 712/80, it does not have memory.  I've been looking around
> to buy some, but I still do not know the part number to place in an
> order.  Does anybody know the part number of the memory for a 712/80?
> Thanks
> 
> Andrew Park
> 
> ________________________________________________________________________
> CDFlab Systems Administrator                       www.cdf.utoronto.ca |
> Team BlueShirt Developer                             www.blueshirt.org |
> GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
> ------------------------------------------------------------------------
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

--
Regards

Patrik Pira
UNIX/Linux Sysadm
papira (at) swipnet dot se
GnuPG key at http://guppi.homeip.net/pgp-keys/
--


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Subject: [parisc-linux] A question...
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Xref: news.gmane.org gmane.linux.ports.parisc:7635

Hello everyone,

I've got this exemplar in my office, it has 16 233 megahertz processors.  I was
wondering if its possible to run parisc-linux on the machine...

Thanks,
Richard Massa


From - Thu Nov 08 21:13:01 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Repeatable crash in remove_inode_page()
Date: Wed, 2 Aug 2000 15:45:06 +0100
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Hi,
  After a few seconds of heavy disk access I always see the following
crash at IAOQ = c0130b28 = remove_inode_page() + 0x4c.

Kernel source cvs updated today,  gcc from xc-20000728.tgz, but it
was probably happening before those updates also.

Richard


Dumping Stack from c7dc4000 to c7dc4a00:
4000 00000000 00000000 00000000 00000001 c0270bf0 00000000 00000000 ffffffff
4020 00000005 00000014 00000000 c7eff180 c7eff180 00000000 00000000 c026d6d0
4040 c026d6d0 c02a4000 c7e5c000 00000000 c027463c 00000000 00000012 00000000
4060 00000000 c0000000 00000016 00000000 00000000 00000000 00000000 c7e5c000
4080 c7e5c000 00000000 00000000 00000000 00000000 c02c720c 00000000 c7dc409c
40a0 c7dc409c c7dc40a4 c01216cc 00000000 00000000 00000000 00000000 00000000
40c0 00000000 00000000 00000000 00000000 00000000 00000000 c7dc4000 c0126d10
40e0 00000000 00000000 00000016 00000000 00000000 00003949 00000000 000001e2
4100 00000000 00000000 00000000 00000000 00000000 00000000 80000000 00000000
4120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
41a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
41c0 fffffeff fffffeff fffffeff 00000000 00000000 ffffffff ffffffff ffffffff
41e0 ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff ffffffff
4200 ffffffff 00000800 00000800 00000400 00000400 ffffffff ffffffff ffffffff
4220 ffffffff 0000726d 00000065 72000000 00000000 00000000 00000000 00000000
4240 00000000 00000000 0004ff0b 200201c4 00023c33 00000001 2001f70c 2001f953
4260 2001f950 00023c50 00000000 00000000 00023c20 00000000 00000001 0000005f
4280 00000000 00000000 c02a4600 c7f98000 c0277708 00008000 0000000a 2001f953
42a0 00000001 00000000 00000000 20020208 2001f9a1 000bdc88 0000000b ffffffff
42c0 20022380 0006b08b 00000000 00000000 0000003c 0000003e c0270800 00000001
42e0 c02aa72f 00000004 c02aa70b c02aa72f 00000023 0000003e 0000003c 00000024
4300 0000000b c0270c30 c0270800 c0270800 00000020 000000ff c02c4798 00000001
4320 c019ede4 00000001 00000005 ffd05801 00000005 c0268000 00000060 00003fff
4340 c7f98800 c0122d98 000f0800 00000000 0000003c 0000003e c0270800 00000001
4360 c02aa72f 00000004 c02aa70b c02aa72f 00000023 0000003e 00000008 00000002
4380 00000000 cccccccd 0000000a 00001018 00000020 000000ff c02c4798 00000001
43a0 c019ede4 00000001 00000005 ffd05801 00000005 c0268000 00000060 00003fff
43c0 c7f98800 c0122d98 00002002 00002002 00000000 00002002 00002002 00002002
43e0 00002002 00002002 00002002 00002002 0006989f 000698a3 c7dc4000 c7dc4a00
4400 c010f4f0 0000000e 08050259 00002002 000698a4 00000000 07d8e000 00000000
4420 c7f1a200 c7f3f3a0 00000000 c7f03000 00000000 00000000 00000000 00000000
4440 00000000 c7dc4440 00000000 00000000 00000002 00000003 00000000 00000000
4460 e8001128 0d601280 0e001280 341a0078 e85505dc 0d441288 0d60109a e8570c08
4480 695c0030 0804025a e85617f8 37990002 0d401298 3413000a 341a0028 49440030
44a0 081c0246 695c0020 0c801290 c0110d20 68800070 0c801298 e855054c 6bd33f19
44c0 2001f950 00000000 000081ed 00023c20 2001f949 00000000 000bdc88 20026408
44e0 00000000 340f0000 e8000db0 c0110f4c 85e02088 341300b8 8a932040 34130054
4500 00000000 0000007c c56c88c0 c7f1e8c0 c5815007 00000003 00006564 00000010
4520 00000000 00000000 2001f9a1 00000000 2001f9a1 0000005f 0000000f 0000000a
4540 401015d8 401013c4 00000000 00004012 000bcc88 000bcc88 0003a084 401015c4
4560 0008e290 00004800 0000005f c0150c6c 00000000 c7dc4248 c7f98000 c0277708
4580 00023c50 2001f950 c56c8cc0 c5815000 c56c8cc0 00000000 00000000 000c0808
45a0 00000000 00023c20 00000000 c014f490 00023c50 2001f950 2001f9a1 c5815000
45c0 c56c88c0 00000000 ffffffeb 00000000 00000000 00023c50 2001f9a1 2001f9a1
45e0 fffffff4 c0271978 00000000 c0150afc 00023c50 2001f950 20020208 20022348
4600 c24de0c0 fffffffe c60e0070 00023c50 c56c8cc0 c24de154 c24de0c0 ffffffff
4620 c24de138 c0271978 00004800 c014e4d0 00000603 00000073 40100000 40108000
4640 c7dc4600 c7dc450c c7dc4598 c7dc4508 c5815007 c6cba960 00000004 00000000
4660 00000001 c0271c08 00000000 c0164be8 c0271c0c c0271a24 00000000 00000000
4680 00000000 00023c20 00000000 00000000 c56c8cc0 fffffffb c6cba960 c24de0c0
46a0 c09d77c0 00000000 00000000 c0157bb8 c0271c0c c0271a24 40108000 c7efd740
46c0 c6cba960 c24de0c0 c09d77c0 00000070 c7f98000 c02a4600 00000000 00000000
46e0 0000005f 00000001 00000000 c0159440 00000000 00000000 c56c8cc0 fffffffe
4700 00000001 00000000 00023c20 00000000 00000000 c56c8cc0 00000000 00000000
4720 c0274830 c09d77c0 c7efd5c0 c0161610 00004800 0000005f 40000000 c7efd560
4740 c24de134 c24de0c0 c24de0c0 00000070 c56c8cc0 00000000 00000000 00000000
4760 00000000 00000000 00000000 c0130e48 c0271c0c c0271a24 c7dc4940 c012eafc
4780 c04df3e4 00000000 0000005f c09d7880 00000000 c02c81f4 c022f000 c022f000
47a0 00000000 c022f000 c04e1680 c04e1668 c04e167c c7dc45c8 c24de134 c24de0c0
47c0 0004000b c0271000 c0130e48 c04df3d0 c04df3d0 c04df3e8 c022f000 00000000
47e0 c022f000 c022f000 c02c81f4 00000000 c09d7880 0000005f 00000000 00000000
4800 c02a4600 c7f98000 c0277708 c04df417 c09d7880 c09d7880 c0534a0c 0000000a
4820 00000069 c022f53c c022f3b0 c0268000 00000000 00000fff c7dc4a00 c01593d0
4840 00000000 00000000 0000003c 0000003e c0270800 00000001 c02aa72f 00000004
4860 c02aa70b c02aa72f 00000023 0000003e 0000003c 00000024 0000000b c0270c30
4880 c0270800 c0270800 00000020 000000ff c02c4798 00000001 c019ede4 00000001
48a0 00000005 ffd05801 00000005 c0268000 00000060 00003fff c7f98800 c0122d98
48c0 000f0800 00000000 0000003c 0000003e c0270800 00000001 c02aa72f 00000004
48e0 c02aa70b c02aa72f 00000023 0000003e 00000002 0012ea58 00000028 cccccccd
4900 0000000a 00001018 00000020 000000ff c02c4798 00000001 c019ede4 00000001
4920 00000005 ffd05801 00000005 c0268000 00000060 00003fff c7f98800 c0122d98
4940 00000000 00002002 00000000 00002002 00000000 00000000 00000000 00000000
4960 00000000 00000000 c0130b28 c0130b2c 00000000 00000003 000bd000 00000008
4980 0e741288 00000000 c04df41b c7eff180 c02a4000 c7dc4900 00000002 00023c20
49a0 00000000 00000001 c09d7a98 00000000 0012ea58 c02a4600 c7f98000 c0277708
49c0 c7f8da40 c7879ad0 c02b5044 c7f37e00 c7f8da60 0000ffff c0280aa4 c7f8d4a0
49e0 c7f8da40 c7879ad0 c02b5044 c0110928 00000000 c7dc4000 c02c6800 c02c6800

Unexpected Interruption!: Code=28 regs=c7dc47c0 (Addr=00000000)

PSW  : 0004000b  GR 1 : c0271000  GR 2 : c0130e48  GR 3 : c04df3d0  
GR 4 : c04df3d0  GR 5 : c04df3e8  GR 6 : c022f000  GR 7 : 00000000  
GR 8 : c022f000  GR 9 : c022f000  GR10 : c02c81f4  GR11 : 00000000  
GR12 : c09d7880  GR13 : 0000005f  GR14 : 00000000  GR15 : 00000000  
GR16 : c02a4600  GR17 : c7f98000  GR18 : c0277708  GR19 : c04df417  
GR20 : c09d7880  GR21 : c09d7880  GR22 : c0534a0c  GR23 : 0000000a  
GR24 : 00000069  GR25 : c022f53c  GR26 : c022f3b0  GR27 : c0268000  
GR28 : 00000000  GR29 : 00000fff  GR30 : c7dc4a00  GR31 : c01593d0  
SR0  : 00000000  SR1  : 00002002  SR2  : 00000000  SR3  : 00002002  
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  

IASQ : 00000000 00000000 IAOQ : c0130b28 c0130b2c
 IIR : 0e741288 ISR : 00000000 IOR : c04df41b


00000000 <remove_inode_page>:
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2536
   0:   6b c2 3f d9     stw rp,-14(sr0,sp)
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2541
   4:   23 20 00 00     ldil 0,r25
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2536
   8:   6f c3 00 80     stw,ma r3,40(sr0,sp)
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2541
   c:   08 1a 02 43     copy r26,r3
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2540
  10:   23 40 00 00     ldil 0,r26
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2536
  14:   37 39 00 00     ldo 0(r25),r25
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2541
  18:   48 73 00 30     ldw 18(sr0,r3),r19
  1c:   37 5a 00 00     ldo 0(r26),r26
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2536
  20:   c7 f3 40 10     bb,*< r19,1f,30 <remove_inode_page+0x30>
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2541
  24:   34 18 00 d2     ldi 69,r24
  28:   e8 40 00 00     b,l 30 <remove_inode_page+0x30>,rp
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2536
  2c:   08 00 02 40     nop
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2541
  30:   0c 70 10 95     ldw  8(sr0,r3),r21
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2536
  34:   2b 60 00 00     addil 0,dp,%r1
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2541
  38:   0e b0 10 93     ldw  8(sr0,r21),r19
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2536
  3c:   36 73 3f ff     ldo -1(r19),r19
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2541
  40:   0e b3 12 90     stw  r19,8(sr0,r21)
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2536
  44:   0c 68 10 94     ldw  4(sr0,r3),r20
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2541
  48:   0c 60 10 93     ldw  0(sr0,r3),r19
  4c:   0e 74 12 88     stw  r20,4(sr0,r19)
  50:   0e 93 12 80     stw  r19,0(sr0,r20)
  54:   48 74 00 70     ldw 38(sr0,r3),r20
  58:   86 80 20 38     cmpib,= 0,r20,7c <remove_inode_page+0x7c>
  5c:   34 36 00 00     ldo 0(r1),r22
  60:   48 73 00 20     ldw 10(sr0,r3),r19
  64:   86 60 20 12     cmpib,=,n 0,r19,74 <remove_inode_page+0x74>
  68:   6a 74 00 70     stw r20,38(sr0,r19)
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2544
  6c:   48 74 00 70     ldw 38(sr0,r3),r20
  70:   48 73 00 20     ldw 10(sr0,r3),r19
  74:   0e 93 12 80     stw  r19,0(sr0,r20)
  78:   68 60 00 70     stw r0,38(sr0,r3)
  7c:   00 01 0e 73     rsm 1,r19
  80:   0e c0 10 94     ldw  0(sr0,r22),r20
/usr/local/.home/rhirst/cvs/linux-2.3/mm/filemap.c:2545
                unsigned long tmp = (PAGE_SIZE << order) / sizeof(struct page *);


From - Thu Nov 08 21:13:01 2018
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From: eric@cirr.com (Eric Schnoebelen)
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Subject: Re: [parisc-linux] A question...
Date: Wed, 02 Aug 2000 10:03:44 -0500
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Richard Massa writes:
- I've got this exemplar in my office, it has 16 233 megahertz
- processors.  I was wondering if its possible to run parisc-linux
- on the machine...

	I suspect it will _never_ be possible to run
parisc-linux (or any Open Source OS) on the Exemplar Series
systems (especialy the SPP1x00 systems) as they are entirely
different than the HP PARISC workstation/server systems.

	A bit of background:  The Exemplar systems were
designed/built by CONVEX before the purchase of CONVEX by HP.
They have an entirely different memory architecture and IO
system.  The memory architecture is based on an SCI ring, if I
remember correctly.. Designed to allow multiple nodes to be
connected together to form a larger system (up to eight nodes in
a complex, as I remember..)  The IO system on an 1x00 system is
SBus based, while the IO system on the 2x00 (now generally
available as the V-class) are PCI based. (oh, and the firmware
is all OBP based.)

	As for an OS, the 1x00 systems run MACH, with a HP-UX
emulating server layer. (originally 9.0x, and later 10.01)

	All in all, you'll probably have more luck running
parisc-linux on the 712 test station.. :-) (and have the add in
ethernet/serial card to play with as well.)

--
Eric Schnoebelen		eric@cirr.com		http://www.cirr.com
	"We are interested in artificial intelligence because there
	  is so much less of the natural kind around these days."


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Subject: Re: [hppa-linux] Document Priority?
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>
> hi
> looking at the released pdc/iodc docs i'm wondering what is in the missing
> chapters? is it possible to release the whole contents table?
> what are the plans for the rest of the book(s) ?
> and, is there any plan for "pa-risc IO architecture" release any soon?

  The PDC/IODC docs posted are actually a subset of the chapters of the
  PA-RISC I/O architecture doc. The first 8 or so chapters of the I/O
  doc contain specific information about the various "Module" types (such
  as processor modules, memory modules, I/O modules, bus converters, etc).
  The last 4-5 chapters and appendices are the same as the PDC/IODC docs we
  have.

  I'm not sure why we were given only the subset (which pertains only to
  the firmware) but I believe we can get a decent start with it. Eventually,
  we will need the other information if we intend to have working device
  drivers, etc. Of course, we can trudge through MkLinux code to figure some of
  it out, but I'd much prefer the doc.

  Jason.


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From: Marc Dijkstra <Marc.Dijkstra@intrinsitech.com>
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Subject: [parisc-linux] SPUID.
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Hi all
=20
Strange request I guess, but having a rather nary problem. Changed a
motherboard in a HPs700 B-class workstation and could not read the
LanAddress off the EEPROM (label or otherwise). Need to process a
lanaddress from the SPUID (dec or hex) to use the HP ss_config utility
to change lanaddress.
=20
Anyone in the ether out there working on HP's know the algorithm HP's
use to work out the mac from the SPUID (Software ID) of the Processor?
My current setup (which is wrong) SPUID dec =3D 2002372255
                                                  SPUID hex =3D =
0x7759c69f
                                                  LanAddress =3D
0060b0-f92342
=20
Should be SPUID dec =3D 2002392735
                SPUID hex =3D 0x775a169f
                lanaddress =3D Thats what I need!!!!!
=20
Ta
=20
=20
Marc Dijkstra


------=_NextPart_000_0024_01BFFD5C.2C7D2200
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>


<META content=3D'"MSHTML 4.72.3110.7"' name=3DGENERATOR>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT color=3D#000000 size=3D2>Hi all</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Strange request I guess, but having a rather nary =
problem.=20
Changed a motherboard in a HPs700 B-class workstation and could not =
read the=20
LanAddress off the EEPROM (label or otherwise). Need to process a =
lanaddress=20
from the SPUID (dec or hex) to use the HP ss_config utility to change=20
lanaddress.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Anyone in the ether out there working on HP's know =
the=20
algorithm HP's use to work out the mac from the SPUID (Software ID) of =
the=20
Processor?</FONT></DIV>
<DIV><FONT size=3D2>My current setup (which is wrong) SPUID dec =3D=20
2002372255</FONT></DIV>
<DIV><FONT size=3D2></FONT><FONT color=3D#000000=20
size=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;=20
SPUID hex =3D 0x7759c69f</FONT></DIV>
<DIV><FONT color=3D#000000=20
size=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;=20
LanAddress =3D 0060b0-f92342</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Should be SPUID dec =3D 2002392735</FONT></DIV>
<DIV><FONT size=3D2></FONT><FONT color=3D#000000=20
size=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;=20
SPUID hex =3D 0x775a169f</FONT></DIV>
<DIV><FONT color=3D#000000=20
size=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;=20
lanaddress =3D Thats what I need!!!!!</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Ta</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>Marc =
Dijkstra<BR></FONT></DIV></BODY></HTML>

------=_NextPart_000_0024_01BFFD5C.2C7D2200--


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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: [parisc-linux] SPUID.
Date: Thu, 3 Aug 2000 10:36:18 -0700 (PDT)
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Re:

> Anyone in the ether out there working on HP's know the algorithm HP's
> use to work out the mac from the SPUID (Software ID) of the Processor?
> My current setup (which is wrong) SPUID dec =3D 2002372255
>                                                   SPUID hex =3D =
> 0x7759c69f
>                                                   LanAddress =3D
> 0060b0-f92342
> =20
> Should be SPUID dec =3D 2002392735
>                 SPUID hex =3D 0x775a169f
>                 lanaddress =3D Thats what I need!!!!!
> =20

(BTW, your message came both as plain ASCII and as MIME-encoded HTML.
This triples the network bandwidth (and local storage) needed
by your email.  Most email clients let you uncheck/unconfigure
the "send as HTML" option.)

Try lan address of 0060b0-f92842


From - Thu Nov 08 21:13:01 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] A question...
Date: Thu, 3 Aug 2000 12:40:03 -0400
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Cc: Richard Massa <int19@hydra.acs.uci.edu>, parisc-linux@thepuffingroup.com
To: Eric Schnoebelen <eric@cirr.com>
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In-Reply-To: <200008021503.KAA26727@opus.cirr.com>; from Eric Schnoebelen on Wed, Aug 02, 2000 at 10:03:44AM -0500
Xref: news.gmane.org gmane.linux.ports.parisc:7641

On Wed, Aug 02, 2000 at 10:03:44AM -0500, Eric Schnoebelen wrote:
> 
> Richard Massa writes:
> - I've got this exemplar in my office, it has 16 233 megahertz
> - processors.  I was wondering if its possible to run parisc-linux
> - on the machine...
> 
> 	I suspect it will _never_ be possible to run
> parisc-linux (or any Open Source OS) on the Exemplar Series
> systems (especialy the SPP1x00 systems) as they are entirely
> different than the HP PARISC workstation/server systems.

Never say `Never' :-)  There was a port of SparcLinux to some Fujitsu
Sparc-based machine at anu.edu.au whose name currently escapes me.
It just takes the will and sufficient documentation.  The latter part
is of course scarce on discontinued products.

-- 
Revolutions do not require corporate support.


From - Thu Nov 08 21:13:01 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New toolchain, userspace apps, nfsroots, ramdisk, and lifimage
Date: Thu, 03 Aug 2000 19:01:15 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:7642

Hi palinux'ers,

In building the PA/Linux Developer's Release CD for Linux World Expo, Paul 
Bame and I have packaged up some new bits.

New x86linux -> palinux cross toolchain,
ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20000802.tgz

Apps built using the new toolchain in,
ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/

A small nfsroot containing some basic commands to play with,
ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/
	nfsroot-small-20000803.tgz

A big nfsroot containing everything we've built so far. This is what the
root filesystem will be on this release of the PA/Linux Developer's CD(or
close to it)
ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/
	nfsroot-20000803.tgz

A small ramdisk containing a limited set the newly compiled apps,
ftp://puffin.external.hp.com/pub/parisc/binaries/ramdisks/ramdisk.bin-20000803

A lifimage using the current CVS kernel bits and the above ramdisk,
ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/Image-20000803

You can also use the above lifimage to boot from other sources(like an 
nfsroot) by,

- Interrupt the boot
- boot from your bootp server adding the "ipl" option
- edit the boot command line (example: nfsroot=192.168.1.10:/tftpboot/nfsroot)

We will be posting the final snapshot of this version(0.1) of the PA/Linux 
Developer's Release CD sometime tommorrow.

Feedback would be greatly apprecicated.

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com



From - Thu Nov 08 21:13:01 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [kaos@ocs.com.au: [RFC] 2.4.0-test6-pre2 Merge softirq, local_irq_count, local_bh_count]
Date: Fri, 4 Aug 2000 10:26:45 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:7643


we're not merged yet, which is why he didn't cc us.  this patch may
be integrated the next time we get round to merging with Linus' tree
and we should be ready for it.

----- Forwarded message from Keith Owens <kaos@ocs.com.au> -----

Delivered-To: thepuffi-willy@thepuffingroup.com
X-Mailer: exmh version 2.1.1 10/15/1999
From: Keith Owens <kaos@ocs.com.au>
To: linux-arm-kernel@lists.arm.linux.org.uk, linuxppc-dev@lists.linuxppc.org,
        linux-mips@fnet.fr, sparclinux@vger.rutgers.edu,
        ultralinux@vger.rutgers.edu, linux-alpha@vger.rutgers.edu,
        linux-kernel@vger.rutgers.edu, linux-ia64@linuxia64.org,
        linux-vm@vm.marist.edu
Subject: [RFC] 2.4.0-test6-pre2 Merge softirq, local_irq_count, local_bh_count 
Date: 	Fri, 04 Aug 2000 15:46:39 +1000
Precedence: bulk
X-Loop: 	majordomo@vger.rutgers.edu

This patch hits every arch.  It is being cross mailed to every arch
mailing list that has not already confirmed that the patch works.
Please trim replies to the relevant mailing list.

Also please cc: kaos@ocs.com.au on replies, I am not on every list.

---

At the moment (2.4.0-test6-pre2) all architectures have a common
definition for softirq_state, it occupies its own cache line with a lot
of unused padding.  The definitions for local_irq_count and
local_bh_count are all over the place, some architectures use a cache
aligned structure, some use arrays of integers (lets you play cache
ping/pong), some even use atomic_t.

Each arch defines its own set of mapping macros to get to
local_irq_count and local_bh_count.  To add insult to injury, not all
architectures use the mapping macros, there are bits of code scattered
around that use hard coded array lookups which are not optimized for
SMP vs non-SMP.

ftp://ftp.ocs.com.au/pub/2.4.0-test6-pre2-softirq-bh-merge.gz is a
merge of softirq, local_irq_count and local_bh_count into one cache
aligned structure.  The aim was :-

* Put all these fields in a per-cpu cache line.  They are hit by the
  same code paths and are only ever updated from one cpu.  Softirq was
  already cache aligned but the other fields were not, in most cases we
  were using multiple cache lines for this data.  On most archs this
  will save a cache line.  In the worst case we use the same number of
  lines but still get a code cleanup.

* Replace all the explicit references like __local_irq_count[cpu] with
  wrapper macros.  Some arch's had already done this but there was
  quite a bit of crud left.

* Replace multiple arch definitions and export of irq_stat with a
  common one, optimized for SMP or non-SMP.  I know that gcc should do
  this, but proving it will always optimize was too messy so I went for
  the safe case and hand optimized the definitions.  Besides, s390 is
  completely different (the story of my life ;).

* Create a standard definition for the wrappers that can be used by
  almost all architectures.  Only s390 and sparc64 are special cases
  but every arch had its own slightly incompatible definition.

* Add a per-cpu syscall_count, ready for performance reporting on soft
  interrupts as well as hard interrupts.  This field is not being set
  at the moment but will be easy to update once the above patch is
  accepted.

I have updated all architectures, but have only been able to test this
patch on ix86 and IA64.  Could the other arch maintainers try this
patch, it is almost guaranteed to contain some Assembler errors.  If
your arch supports SMP, please try both UP and SMP.

I want to know if the patch works or not on each arch so I can send the
patch to Linus.  So I would appreciate feedback on tests, whether
successful or not.  m68k and super-h have already replied, nobody else
has confirmed one way or the other.

All architectures except s390 and sparc64 use the same definitions, see
include/linux/irq_cpustat.h.  For all but s390, sparc64 and m68k,
please check the Assembler changes, the common code should be fine.

S390    No irq_stat structure, the equivalent fields are stored in
        S390_lowcore.  That moved cpu_data, ipl_device and the SMP info
        area up by 16 bytes.  There was no need for local_bh_count and
        local_irq_count to be atomic.  Please check the changes to
        __LC_ in lowcore.h.  Also the use of lowcore instead of
        irq_stat[NR_CPUS] means that asm-s390/hardirq.h is quite
        different from the other archs, it has its own unique
        definitions for all the wrapper macros.

sparc64 For UP, it uses the common code, local_irq_count is an int in
        irq_stat.  For SMP, local_irq_count is a brlock in cpu_data.
        asm-sparc64/hardirq.h defines a special SMP mapping for
        local_irq_count.

m68k    The change to arch/m68k/atari/ataints.c is a complete guess.
        There were no examples of how to reference SYMBOL+8 from asm in
        atari.

Files patched:

arch/alpha/kernel/alpha_ksyms.c
arch/alpha/kernel/entry.S
arch/alpha/kernel/irq_alpha.c
arch/alpha/kernel/irq_smp.c
arch/alpha/kernel/smp.c
arch/arm/kernel/armksyms.c
arch/arm/kernel/entry-common.S
arch/arm/kernel/irq.c
arch/i386/kernel/entry.S
arch/i386/kernel/i386_ksyms.c
arch/i386/kernel/io_apic.c
arch/i386/kernel/irq.c
arch/i386/kernel/traps.c
arch/ia64/kernel/entry.S
arch/ia64/kernel/ia64_ksyms.c
arch/ia64/kernel/irq.c
arch/m68k/atari/ataints.c
arch/m68k/kernel/entry.S
arch/m68k/kernel/ints.c
arch/m68k/kernel/m68k_ksyms.c
arch/mips/baget/irq.c
arch/mips/dec/irq.c
arch/mips/kernel/entry.S
arch/mips/kernel/irq.c
arch/mips/kernel/mips_ksyms.c
arch/mips/kernel/scall_o32.S
arch/mips/orion/irq.c
arch/mips/sgi/kernel/indy_int.c
arch/mips64/kernel/entry.S
arch/mips64/kernel/scall_64.S
arch/mips64/kernel/scall_o32.S
arch/mips64/sgi-ip22/ip22-int.c
arch/mips64/sgi-ip27/ip27-irq.c
arch/ppc/kernel/entry.S
arch/ppc/kernel/irq.c
arch/ppc/kernel/local_irq.h
arch/ppc/kernel/ppc_ksyms.c
arch/s390/kernel/entry.S
arch/s390/kernel/irq.c
arch/s390/kernel/process.c
arch/s390/kernel/s390io.c
arch/s390/mm/fault.c
arch/sh/kernel/entry.S
arch/sh/kernel/irq.c
arch/sparc/kernel/irq.c
arch/sparc/kernel/rtrap.S
arch/sparc/kernel/sparc_ksyms.c
arch/sparc64/kernel/irq.c
arch/sparc64/kernel/rtrap.S
arch/sparc64/kernel/smp.c
arch/sparc64/kernel/sparc64_ksyms.c
include/asm-alpha/hardirq.h
include/asm-alpha/smp.h
include/asm-alpha/softirq.h
include/asm-arm/hardirq.h
include/asm-i386/hardirq.h
include/asm-ia64/hardirq.h
include/asm-m68k/hardirq.h
include/asm-m68k/softirq.h
include/asm-m68k/system.h
include/asm-mips/hardirq.h
include/asm-mips64/hardirq.h
include/asm-mips64/processor.h
include/asm-mips64/smp.h
include/asm-ppc/hardirq.h
include/asm-ppc/softirq.h
include/asm-s390/hardirq.h
include/asm-s390/irq.h
include/asm-s390/lowcore.h
include/asm-s390/softirq.h
include/asm-sh/hardirq.h
include/asm-sh/softirq.h
include/asm-sparc/hardirq.h
include/asm-sparc/irq.h
include/asm-sparc/softirq.h
include/asm-sparc64/hardirq.h
include/asm-sparc64/smp.h
include/asm-sparc64/softirq.h
include/linux/interrupt.h
include/linux/irq_cpustat.h
kernel/ksyms.c
kernel/sched.c
kernel/softirq.c
net/netsyms.c



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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] U2/Uturn support added
Date: Sat, 5 Aug 2000 00:11:13 -0700 (PDT)
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Hi all,
I just committed two not-yet-but-almost-working "CCIO" drivers
to support U2 and Uturn "I/O Adapters". FOr those not on the
CVS e-mail list, attached is the CVS commit message.

The sort-of-bad news is I can't spend more time on ccio-dma.c.
I've burned a over week already and I'm afraid I won't have enough time
to get other parisc-linux PCI issues resolved that my empoyer cares about.
If someone else (I nominate John D Anglin and Ryan Bradetich ;^) could
take a look at ccio-dma.c, I'd be quite happy to answer (most likely
not) stupid questions...especially since U2/Uturn documentation still
hasn't been published. <sigh>.

In HP speak, IOA's are more than just bus converters and bus bridges.
(And I don't know what the difference between those are either).
The U2/Uturn IOAs provide coherency between DMA/CPU D-cache and perform
physical address translations between a 32-bit <-> 40-bit bus. For
parisc-linux, we require the I/O MMU to provide I/O coherency on
many platforms.  Follow the e-mail thread that started with
http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/03-Mar/0032.html
if you want to learn the underlying requirements.

One exception is Uturn under PCX-W processors. Here, the IOA is only needed
to provide I/O Coherency since PCX-W follows the coherency model defined
someplace that U2/Uturn also implement.  And ccio-rm-dma.c might work as-is.
I just don't have a C360 to test it on. Philipp Rumpf claims his dma-rm.c
(the original file) works on his C360.

And though I explicitly call-out the older C-class models in my
comments, I expect most of this to apply to equivalent K/D/R/J-class
models which have U2/UTurn in them as well.

enjoy!
grant

CVS: ----------------------------------------------------------------------
CVS: Enter Log.  Lines beginning with `CVS:' are removed automatically
CVS: 
CVS: Committing in .
CVS: 
CVS: Modified Files:
CVS: 	arch/parisc/config.in arch/parisc/defconfig 
CVS: 	arch/parisc/kernel/Makefile drivers/gsc/gsc.c 
CVS: Added Files:
CVS: 	arch/parisc/kernel/ccio-dma.c arch/parisc/kernel/ccio-rm-dma.c 
CVS: ----------------------------------------------------------------------
Add two versions of U2/Uturn I/O MMU driver : ccio-dma and ccio-rm-dma.

ccio-dma is intended
a) to work on all platforms w/U2 or Uturn (but doesn't yet.)
   (I think it's very close to working but I have to get away from it
    for a while and get back to PCI support issues)
b) once it is working, provide better DMA performance/bus utilization.
c) to only support 1 IOA.
   (Supporting more than one IOA requires tree structure for PA I/O devices.)
d) allow someone else to play with it and maybe see what's wrong.

ccio-rm-dma:
a) only works under PCX-W (ie C360) platforms (not under PCX-U - C180/200/240)
b) is borrowed from prumpf's linux-parisc
c) provides better CPU utilization since it's not really doing anything.
   (Mostly function call overhead)
d) supports any/all IOAs under UTurn since it doesn't need to know
   anything about the heirarchy of the I/O subsystem.

The "switch" is in the parisc/kernel/Makefile since I was too lazy
to figure out a clean way to pick the "right" one. I was thinking
a runtime check might be the right way but it isn't. It also depends
on load characteristics which aren't visible to the CPU (ie type of
DMA transactions - connected or split).


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Subject: Re: [RFC] 2.4.0-test6-pre2 Merge softirq, local_irq_count, local_bh_count
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On Sat, Aug 05, 2000 at 06:19:56PM +1000, Keith Owens wrote:
> Linus rolled the change into 2.4.0-test6-pre4.  Do you want a hand
> patching parisc?  I would need a copy of include/asm-parisc and
> arch/parisc.

thanks for the offer, but we'll do it ourselves when we do the next
merge of Linus' tree into our own (we're still on 2.3.99pre8).

-- 
Revolutions do not require corporate support.


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From: crypt@ihug.co.nz
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Subject: [parisc-linux] support for the hp 9000/807s
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Hi I have just aquired an old 807s and was wondering if there is likely
to be any suport for this machine in the near future.

thanks in advance
Joe.

ps. I know that this is a really slow box but it didn't cost me anything
and I expect to have heaps of fun playing with it in some form or other.

-- 
=======================================================================
in real life: Joseph Skinner         |There's no such thing as a wizard
email: crypt@ihug.co.nz              |who minds his own business
       Analyst/Programmer            | - Berengis the Black
                                     |   Court Mage to the Earls Caeline
========================================================================


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Subject: Re: [parisc-linux] support for the hp 9000/807s
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On Tue, Aug 08, 2000 at 12:40:58AM +1200, crypt@ihug.co.nz wrote:
> Hi I have just aquired an old 807s and was wondering if there is likely
> to be any suport for this machine in the near future.

Not in the near future.  It's one of the machines we can support, but
it's full of strange devices which we know nothing about.  Feel free
to try hacking on it yourself, but it's not a machine we're terribly
inteerested in working on.

-- 
Revolutions do not require corporate support.


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Subject: [parisc-linux] parisc64
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those of you on the cvs list will have noticed parisc64 being committed.
don't get excited.  it's mainly been committed just to get the directory
structure down.  on my c3k, it HPMCs as soon as it tries to do anything
clever (like run C code in virtual mode, say).

most of the files just contain one line, along the lines of:

#include "../../parisc/kernel/setup.c"

whenever anyone hacking on parisc64 comes across something they need to
change, just copy the appropriate file into its place and edit it.  we'll
figure out what really can be shared and what can't at a later date.

(i suspect most of the bus adapter drivers should move into drivers/
for example.  *mumbles something about drivers/gsc/ being a bad name*).

-- 
Revolutions do not require corporate support.


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From: Mike Shaver <shaver@netscape.com>
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Subject: Re: [hppa-linux] syscall work
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Cary Coutant wrote:
> I'd suggest *not* using the same gateway page address as HP-UX. If you
> do, you won't be able to develop a later kernel extension to support
> HP-UX binaries, unless you allocate syscall numbers carefully.

Well, my plan was to do what the MIPS guys have done (and others, like
maybe SPARC?): 
syscall numbers 0 to 200-something are __NR_HP_syscall, and then the
Linux ones start at 1000.  HP-UX binary emulation is something that I
really really want early on, because it will give us a functioning
userland while we're trying to get compiler and linker and glibc ports
complete and working.

But maybe you're right -- maybe we use one gateway page address for
HP-UX compat, and another for native-Linux syscalls.  We have a lot more
flexibility in our system call mechanism than the other platforms did, I
think, so perhaps there's a better way.

It'd be nice to have hpux.o as a module for binary compatibility, when
we get there, but that's probably not so hard.  Ponder...

The checked-in unistd.h has appropriate syscall numbering to support the
current plan, if you'd like to peek.

Mike

-- 
78101.27 70129.77


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From: Simon Teather <simon.teather@barclays.co.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP 9000/D200 and Linux
Date: Tue, 08 Aug 2000 08:49:28 +0100
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Good Morning

Has anyone sucessuflly got Linux running on an HP 9000/D200 machine?.

If so, any tips or advice?

Many Thanks
Simon Teather


Internet communications are not secure and therefore the Barclays Group does
not accept legal responsibility for the contents of this message. Any views
or opinions presented are solely those of the author and do not necessarily
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Hi,
  I have added support for 53c720, currently (ab)using the ncr53c8xx.c driver,
but it may have to split in to a seperate driver later.  Tested on a bluefish
card; I can run fast and wide, using tagged commands, and copy data between
two disks.  It crashes after a while, but then if I do the same with either
the 53c710 or 53c875 drivers a similar thing happens.  I'm busy with other
things for the next week or so, but I'll get back to it after that.

To enable it answer 'yes' to CONFIG_SCSI_ZALON.

Richard


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 9000/D200 and Linux
Date: Tue, 8 Aug 2000 08:59:56 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:7652

On Tue, Aug 08, 2000 at 08:49:28AM +0100, Simon Teather wrote:
> Has anyone sucessuflly got Linux running on an HP 9000/D200 machine?.

We don't actually have an ioscan of the D200 in our database, could you go
to http://216.208.98.4/add.php3?type=machine and follow the instructions
for adding it to the hwdb?

>From other info, this is a PCX-L based machine (PA7100LC) which makes
it similar to the 712.  The D310 is the closest thing we have to it in
the database (http://216.208.98.4/view.php3?type=machine&name=D310).
Most of the devices in there seem supported, so it should work.  It's not
a machine which we're concentrating on right now, but with a bit of luck,
the cd image that matt taggart & paul bame have produced should work
on it.

-- 
Revolutions do not require corporate support.


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From: Paul Bame <bame@noam.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PA/Linux CD Image
Date: Tue, 08 Aug 2000 13:30:31 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:7653

We recently sent off the master copy of the PA/Linux Snapshot 0.1 CD
for replication, and for distribution at LinuxWorldExpo.  The compressed
ISO image is available at:

    ftp://puffin.external.hp.com/pub/parisc/cd-images
    (inside HP) http://debian.fc.hp.com/cd-images/

The conference CD contains a snapshot of our FTP site, but if you
have access to FTP there's no reason to download a huge CD image
with another copy of the FTP site in it, so I didn't
put the CD image containing the FTP mirror on puffin.external.hp.com.

I've attached the README from the CD because everyone should be aware
of the WARNING/DISCLAIMER stuff.

	-Paul Bame

             Welcome to PA/Linux Developer's Release
		Version 0.1 - Snapshot 2000/08/04
             ---------------------------------------

This CD presents a snapshot of the work porting Linux to PA-RISC processors.
The CD boots on HP 9000/712, A-180, and B-180 and possibly other HP PA-RISC
computers.  It contains a minimal set of cross-compiled user space programs.

In addition to the bootable image, this CD contains cross compilers,
source code, and documentation.  You can also use it to initialize a bootable
PA-RISC hard disk from this CD.

Since progress never stops, by the time you read this it will be out of
date, so check out http://www.thepuffingroup.com/parisc/ for the latest.

*** WARNING ***
This is only a snapshot of development in progress. The purpose of the user
space programs at this point are to,
    1) stress and break the kernel, which they do (as you'll
	probably find out)
    2) become the base build environment under which we can start
	building a "real" Linux distribution.
    3) NOT to have a "correct" or secure or pleasing user space
	since that's what we'll soon have through building
	a real Linux distribution.


Contents
- - --------
Since this CD is also a bootable filesystem the layout of the CD reflects that.
In all the normal system directories (like /bin, /usr, etc) you'll find
PA/Linux userspace binaries and other system files. In addition to the
normal directories there are a few additional files and directories;

README         - This file
README.INSTALL - Instructions for initializing a bootable PA/Linux harddisk.
mirror/        - A mirror of ftp://puffin.external.hp.com/pub/parisc/
                   See mirror/README for contents and details


Errata
- - ------
Not all userspace apps function correctly. Here are some problems we
know about,

- - - Ctrl-C doesn't work
- - - ping only handles 1 packet, and then it hangs your machine
- - - Lots of debug messages come out of the kernel -- don't worry about it.

- ------- End of Forwarded Message






------- End of Forwarded Message


From - Thu Nov 08 21:13:02 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Making the stack executable
Date: 08 Aug 2000 14:30:20 -0400
Organization: Linuxcare, Inc.
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Xref: news.gmane.org gmane.linux.ports.parisc:7654

Hi,

It turns out that my mysterious lockups in the rt_sigreturn path were
due to the fact that our stack pages are not executable.

They are being mapped with PAGE_COPY protection in exec.c, like every
other architecture does, but unlike every other architecture, our
PAGE_COPY did not include execute permissions.

Sorry folks but we do need trampolines.

What is more disturbing is that without _PAGE_EXEC set in PAGE_COPY,
attempting to execute code on the stack just hangs the machine solid!
(without printing out any error messages or register dumps)

The following program should demonstrate this problem:

	.LEVEL 1.1
	.text
	.align 4
	.globl main
main:
	.PROC
	.CALLINFO FRAME=64
	stw	%rp,-20(%sp)
	copy	%sp,%r19
	ldo	64(%sp),%sp
	ldil	L%0xebe0c002,%r20	/* bv,n %r0(%r31) */
	ldo	R%0xebe0c002(%r20),%r20
	stw	%r20,0(%r19)
	fdc	%r0(%r19)
	sync
	fic	%r0(%r19)
	sync
	ble	0(%sr7,%r19)
	nop
	ldo	-64(%sp),%sp
	bv,n	%r0(%rp)
	.ENTRY
	.EXIT
	.PROCEND

Is this some kind of issue with our ITLB miss handlers?

I'll check in the change to <asm/pgtable.h> shortly, but I'd like
someone to also look into the problem above (without the change).

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] recipe
Date: Tue, 08 Aug 2000 23:25:09 -0600
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To: Tara Dear <tdear@linuxcare.com>, parisc-linux@thepuffingroup.com
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This is a multi-part message in MIME format.
--------------BFFCCEE5BF5198CF09372007
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Tara,

I have a small patch to the recipe that will fix problems with a new install.

Sorry it has taken so long to get back, but it took me a while to figure out
how to fix them so I could post a patch :)

Unfortunately, the current glibc cvs source will not build for me so I have
not finished testing the recipe.  I will take a look at the remaining errors
tomorrow evening, unless someone else manages to fix them before then :)

Thanks for the recipe!

- Ryan


P.S.  Here are the glibc errors.

hppa-linux-gcc ../sysdeps/unix/sysv/linux/sigaction.c -c -O -Wall -Winline
-Wstrict-prototypes -Wwrite-strings -g      -I../include -I.
-I/usr/src/parisc/glibc-build/signal -I.. -I../libio
-I/usr/src/parisc/glibc-build -I../sysdeps/hppa/elf
-I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux
-I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman
-I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix
-I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32
-I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64
-I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa
-I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic  -nostdinc
-isystem /opt/puffin/lib/gcc-lib/hppa-linux/2.96/include -isystem
/usr/src/parisc/glibc-build/../linux-2.3/include  -include
../include/libc-symbols.h     -o
/usr/src/parisc/glibc-build/signal/sigaction.o
../sysdeps/unix/sysv/linux/sigaction.c: In function `__sigaction':
../sysdeps/unix/sysv/linux/sigaction.c:77: structure has no member named
`sa_restorer'
../sysdeps/unix/sysv/linux/sigaction.c:83: warning: initialization makes
integer from pointer without a cast
../sysdeps/unix/sysv/linux/sigaction.c:83: warning: initialization makes
integer from pointer without a cast
../sysdeps/unix/sysv/linux/sigaction.c:96: structure has no member named
`sa_restorer'
../sysdeps/unix/sysv/linux/sigaction.c:116: structure has no member named
`sa_restorer'
../sysdeps/unix/sysv/linux/sigaction.c:119: warning: initialization makes
integer from pointer without a cast
../sysdeps/unix/sysv/linux/sigaction.c:119: warning: initialization makes
integer from pointer without a cast
../sysdeps/unix/sysv/linux/sigaction.c:127: structure has no member named
`sa_restorer'
make[2]: *** [/usr/src/parisc/glibc-build/signal/sigaction.o] Error 1
make[2]: Leaving directory `/usr/src/parisc/glibc/signal'
make[1]: *** [signal/subdir_lib] Error 2
make[1]: Leaving directory `/usr/src/parisc/glibc'
make: *** [all] Error 2


--------------BFFCCEE5BF5198CF09372007
Content-Type: text/plain; charset=us-ascii;
 name="patch.recipe"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="patch.recipe"

*** recipe.sh.orig	Tue Aug  8 23:06:46 2000
--- recipe.sh	Tue Aug  8 23:04:27 2000
***************
*** 1,7 ****
  #!/bin/sh -e
  
! PREFIX=/home/tdear/parisc
  HOST=i386-linux
  
  export CVS_RSH=ssh
  echo Checking for CVS directories
--- 1,8 ----
  #!/bin/sh -e
  
! PREFIX=/opt/puffin
  HOST=i386-linux
+ PATH=/usr/local/bin:/usr/bin:/bin
  
  export CVS_RSH=ssh
  echo Checking for CVS directories
***************
*** 43,48 ****
--- 44,56 ----
  echo Updating linux-2.3
  (cd linux-2.3 && cvs update -dP)
  echo Updating header files in $PREFIX/hppa-linux/include/{linux,asm}
+ 
+ # We need to build include/linux/version.h for glibc
+ (cd linux-2.3 && gmake `pwd`/include/linux/version.h)
+ 
+ # We also need a symbolic link for asm
+ (cd linux-2.3/include && ln -s asm-parisc asm)
+ 
  rm -rf $PREFIX/hppa-linux/include/{linux,asm}
  cp -a linux-2.3/include/linux $PREFIX/hppa-linux/include
  cp -a linux-2.3/include/asm-parisc $PREFIX/hppa-linux/include/asm

--------------BFFCCEE5BF5198CF09372007--


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] recipe
Date: 09 Aug 2000 10:11:11 -0400
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Cc: Tara Dear <tdear@linuxcare.com>, parisc-linux@thepuffingroup.com
To: Ryan Bradetich <rbradetich@uswest.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:7656

Ryan Bradetich <rbradetich@uswest.net> writes:

> Unfortunately, the current glibc cvs source will not build for me

> ../sysdeps/unix/sysv/linux/sigaction.c: In function `__sigaction':
> ../sysdeps/unix/sysv/linux/sigaction.c:77: structure has no member named
> `sa_restorer'

Urgh.  This is my fault.  Sorry, I forgot to actually test that patch
to glibc it seems.  Fixing it now.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


From - Thu Nov 08 21:13:03 2018
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From: schaecsn <schaecsn@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: PA/Linux CD Image
Date: Wed, 09 Aug 2000 17:45:27 +0200
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Hello,

I am interested in trying out the PA Linux cdrom. Before I put much
effort into installing it on my 735 i have a few questions.

my understanding of the current state of the port is that the kernel
boots and some user applications run at ... at least a few seconds.
right?

how "complete" is the cdrom image, e.g. does there exist a /etc
directory with some rc.d files and similiar essential things? if i put
some effort into installing it then I'll like to use it as a basis for
further updates, e.g. when there will be eventually a stable kernel I
want to install it over this distribution. I'll have to install probably
some further programs, too. Will this be possible with a "reasonable"
effort?

aehm, i have a 200MB SCSI disk. That is enough, isn't it?

thank you,

- Stefan


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From: Bdale Garbee <bdale@gag.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: PA/Linux CD Image
Date: Wed,  9 Aug 2000 12:28:12 -0600 (MDT)
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In article <39917C97.4DC81F31@gmx.de> you wrote:

> if i put
> some effort into installing it then I'll like to use it as a basis for
> further updates, e.g. when there will be eventually a stable kernel I
> want to install it over this distribution. I'll have to install probably
> some further programs, too. Will this be possible with a "reasonable"
> effort?

That depends on your definition of "reasonable".  :-)  I don't think anyone
expects you to "install" the bits on this CD.  The image is bootable, and it
should be possible to play around quite a bit running from the CDROM root.

My personal spin on this is that if it's not hard for you to burn a CR-R, or
if you were to acquire a physical disk at LWCE, then it's probably worth 
dropping it in a CDROM drive and booting it to see what's there and what does
and doesn't work.  It may not be worth trying to install this onto your hard
disk for any reason other than intellectual curiosity unless you intend to
dive in and help the team complete the porting work.  Even then, I find it 
desireable to work over an nfsroot and not a local disk installation.

We're getting close (a couple of months, maybe) from being able to offer 
a relatively normal Debian installation/upgrade process.  If you want to 
*use* parisc-linux (as opposed to helping get the port finished), that is
probably a better trigger event to wait for.

Bdale


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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] PA/Linux CD Image
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Paul Bame said:
> We recently sent off the master copy of the PA/Linux Snapshot 0.1 CD
> for replication, and for distribution at LinuxWorldExpo.  The compressed
> ISO image is available at:
> 
>     ftp://puffin.external.hp.com/pub/parisc/cd-images
>     (inside HP) http://debian.fc.hp.com/cd-images/

Great stuff Paul - thanks for making the image available.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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From: Craig Hada <chada@cup.hp.com>
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Subject: Re: [hppa-linux] Qn on PA-RISC Page tables and TLB
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> 
> 
> PA-RISC Arch 1.1 book says:
> On page 3-14:
> 
> 	Exact form of these tables is s/w convention. 
> 
> Q.	If the format is software convention, does that mean
> 	the fields within TLB slots are not defined by Hardware ?
> 	Though  the book does seem to indicate what fields are needed
> 	in a pdir entry. Without knowing exact positions of various
> 	fields how would TLB entries be updated from pdir entries in
> 	memory ?
> 

In the absense of a harware TLB walker, the page directory format can be
structured by software to fit its needs. However, the TLB miss handler
must reformat the bits to fit the format of the TLB insert instructions.
To get maximum performace from the system, the TLB miss handlers must be
made very efficient. The format of the page directory entry in the PA-RISC 
Arch 1.1 book minimizes the work of the TLB miss handlers by aligning the
fields to match the format of the TLB insert instructions.

In order to enable the hardware TLB walker, the format of the page directory
must match the format from PA-RISC Arch 1.1 book. In addition, the memory
for the page directory must be equivalently mapped, power of two size aligned
(ie a page directory 1 MB in size must start on a 1 MB boundary), and 
contiguous. 

> 	Other interesting point to note is that PA-RISC does not
> 	define how many entries in the table etc. Very much unlike
> 	x86.
> 
> -pkd

The number of entries in the page directory are a function of the amount of 
memory and the amount of memory mapped I/O in the box. Since the hash
function is not perfect, the size of page directory can be tuned to meet
the system requirements.

-Craig
> 	
> 
> 
> 
> 
> -------------------------------------------------------------------------
> To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: PA/Linux CD Image
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schaecsn wrote:
> Hello,
> 
> I am interested in trying out the PA Linux cdrom. Before I put much
> effort into installing it on my 735 i have a few questions.

The CD targets the 712/715/A180/B180 -like machines.
Check the HWDB to see what devices in the 735 are supported.

> my understanding of the current state of the port is that the kernel
> boots and some user applications run at ... at least a few seconds.
> right?

Yes. I was even able to dd from one disk to another w/o crashing. :^)

> how "complete" is the cdrom image, e.g. does there exist a /etc
> directory with some rc.d files and similiar essential things?

Yes. It gets to a login prompt and is multitasking.
I believe the CD-image at:

  ftp://puffin.external.hp.com/pub/parisc/cd-images/palinux-0.1-noftp.raw.gz

is basically the same bits as in:

  ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/nfsroot-20000804.tgz

I've placed the "tar tzvf" output of nfsroot-20000804 in
.../nfsroot-20000804.contents.

BTW, kudos to Paul Bame and Matt Taggart for putting these images together.
(I'm not ignoring previous and other contributors - just want to
give credit for this particular one)

> if i put
> some effort into installing it then I'll like to use it as a basis for
> further updates, e.g. when there will be eventually a stable kernel I
> want to install it over this distribution.

I think the goal is to completely clobber this once shared libs are
useable...the image sizes will be much smaller then too.

It's pretty easy to install....took me < 30 minutes, including
writing up feedback on the alpha version of the README.INSTALL.

Read the "WARNINGS" several times and heed them.  If you don't
know what you are doing, parisc-linux isn't ready for you yet.
You are welcome to learn by trying but don't be to surprised
by the results...

> I'll have to install probably
> some further programs, too. Will this be possible with a "reasonable"
> effort?

Networking userspace wasn't clearly working last I tried.
You can xenv build the apps and then mount the parisc-linux disk on a
x86-linux. Not sure that fits your definition of "reasonable" but it's
do-able.

> aehm, i have a 200MB SCSI disk. That is enough, isn't it?

I think so:
grundler <514>du -s lwe.nfsroot/
102924  lwe.nfsroot

I transferred that to a disk which has 10MB boot and 64MB swap partitions.
So 200MB should work (for now :^)).

FWIW, I have debian linux installed on my OB600 which only
has a 340MB disk. basic install (ie had networking and some
core X11 bits installed) left me with ~150MB or so free. But
for it to be useful to me, I had to install tools/source/etc
and now am down to ~20MB free.

But given that HP is scrapping older 525MB and 1GB SE SCSI disks, I
think you should be able to find something bigger for < $20 on
e-bay or at your favorite computer recycling center.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Subject: Re: PA/Linux CD Image
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Grant Grundler said:
> But given that HP is scrapping older 525MB and 1GB SE SCSI disks, I
> think you should be able to find something bigger for < $20 on
> e-bay or at your favorite computer recycling center.

I was wondering, might anyone know of such a place in Australia?

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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Hi Folks;
     Will your release run on 9000-800 G30 or G50? I have to
erase some hv differential Raids on several various flavors of these 
machines and have no access (passwords) to the OS or any distribution media 
and am required to erase the hard drives prior to disposal of the hardware. 
I really don't want to pull the drives out and munch them in a press or 
drill a hole in them, what a waste. I would much rather load linux on them 
and make them useful again. Any suggestions???

I am grateful for any advice. Thanks,

Mark Farris
________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com


From - Thu Nov 08 21:13:03 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] G30 & G50
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On Wed, Aug 09, 2000 at 02:02:16PM -0700, Mark Farris wrote:
> Hi Folks;
>      Will your release run on 9000-800 G30 or G50?

The closest thing we have to either of these is the G40:

http://216.208.98.4/view.php3?type=machine&name=G40

and all the devices here are undocumented.  so no, probably not to any
great extent.

> I have to
> erase some hv differential Raids on several various flavors of these 
> machines and have no access (passwords) to the OS or any distribution media 
> and am required to erase the hard drives prior to disposal of the hardware. 
> I really don't want to pull the drives out and munch them in a press or 
> drill a hole in them, what a waste. I would much rather load linux on them 
> and make them useful again. Any suggestions???

i suspect someone can offer you suggestions here.

-- 
Revolutions do not require corporate support.


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From: Andreas <andi@fischlustig.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] cd image does boot but console dies during kernel boot
Date: Thu, 10 Aug 2000 03:40:11 +0200
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I tried the recent kernels and the developer snapshot cd.
My machine is a 712/60 with 128MB RAM.

here the last two lines from the kernel output

ttyS00 at iomem 0xf0105800 (irq = 538) is a 16550A
pdc_cons die!!


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] cd image does boot but console dies during kernel 
 boot
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Andreas writes...

> I tried the recent kernels and the developer snapshot cd.
> My machine is a 712/60 with 128MB RAM.
> 
> here the last two lines from the kernel output
> 
> ttyS00 at iomem 0xf0105800 (irq = 538) is a 16550A
> pdc_cons die!!

Everyone sees that error currently.

I assume you are watching this output on the graphics console?  At this point 
the kernel switches over to the serial for console.  You have two options,

1. Plug in a serial console(minicom and a null-modem cable work well). In this 
case you may also want to hack the firmware console to serial so you get 
everything in one place. See,

http://puffin.external.hp.com/mailing-lists/parisc-linux/1999/12-Dec/0091.html

for instructions. You will need an HP-UX disk to boot from and serial console 
on the 712 is not supported by HP. But it works fine.


2. Switch to a kernel that uses STI instead of serial.  Then you will get all 
output on the graphics console. To do this use a kernel built with 
CONFIG_STI_CONSOLE enabled.

-- 
Matt Taggart
taggart@fc.hp.com



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From: Andreas <andi@fischlustig.de>
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Subject: Re: [parisc-linux] cd image does boot but console dies during kernel 
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>
> 2. Switch to a kernel that uses STI instead of serial.  Then you will get all
> output on the graphics console. To do this use a kernel built with
> CONFIG_STI_CONSOLE enabled.

well... it would be a good idea to put a kernel that uses STI on the ftp
server...


bye
  Andreas



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From: "T. Martin" <catfish@alltel.net>
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Subject: [parisc-linux] off topic.
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 Hello, 
 I know this is off topic but I have got a copy of NeXT (sparc HPPA
Intel) I can get the Intel and sparc to install fine but I'm trying to use
the sun external cdrom on my HP 715/75 to install from and it will not
boot off the cdrom. 
 If anyone has done this let me know please. off the list. 
Terry


catfish: icq #20116127



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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] merge with 2.4.0-testN?
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it's been well over 2 months since we last merged Linus' tree into ours.
i'm thinking about leaving the -test6 patch to mature over the next week
or so, see if there's any cripplingly awful bug reports and, if not,
merge -test6 into our tree.  if there are, -test4 had some good reviews,
i might consider that instead.

i'm going to tentatively set a date as Thursday 16th August for this.
if you've got any big changes outstanding, now would be an excellent
time to commit them before the landscape shifts under our feet.

-- 
Revolutions do not require corporate support.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] merge with 2.4.0-testN?
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Matthew Wilcox wrote:
> 
> it's been well over 2 months since we last merged Linus' tree into ours.
> i'm thinking about leaving the -test6 patch to mature over the next week
> or so, see if there's any cripplingly awful bug reports and, if not,
> merge -test6 into our tree.  if there are, -test4 had some good reviews,
> i might consider that instead.


Mathew,
ok with me. either way.

> i'm going to tentatively set a date as Thursday 16th August for this.
> if you've got any big changes outstanding, now would be an excellent
> time to commit them before the landscape shifts under our feet.

San Jose, LWE is on until Aug 17th. We will have a RH linux PC, 712, A180
and internet access during the show...so Matt and I might be able to help
some anyway if the HP booth is wonderfully boring. :^)

BTW, should we move to a "linux" or "linux-2.4" repository?
I have no clue what the mechanics are of doing such a move but
this merge might be a good time to do it.

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Cary Coutant wrote
>
>I'd suggest *not* using the same gateway page address as HP-UX. If you 
>do, you won't be able to develop a later kernel extension to support 
>HP-UX binaries, unless you allocate syscall numbers carefully.

If Linux uses a different gateway page address than HP-UX (which I
think is a good idea), why not use a strategy like that used for
64-bit HP-UX apps, where the kernel supplies the address in a
register at application startup?


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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] merge with 2.4.0-testN?
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Will the port name change from parisc to hppa at this time too?

ie... Will the following directories change?

Documentation/parisc
arch/parisc
arch/parisc64
include/asm-parisc
include/asm-parisc64

Let me know when/where and I'll do what I can to help with the merge.

Thanks,

Ryan


Grant Grundler wrote:

> Matthew Wilcox wrote:
> >
> > it's been well over 2 months since we last merged Linus' tree into ours.
> > i'm thinking about leaving the -test6 patch to mature over the next week
> > or so, see if there's any cripplingly awful bug reports and, if not,
> > merge -test6 into our tree.  if there are, -test4 had some good reviews,
> > i might consider that instead.
>
> Mathew,
> ok with me. either way.
>
> > i'm going to tentatively set a date as Thursday 16th August for this.
> > if you've got any big changes outstanding, now would be an excellent
> > time to commit them before the landscape shifts under our feet.
>
> San Jose, LWE is on until Aug 17th. We will have a RH linux PC, 712, A180
> and internet access during the show...so Matt and I might be able to help
> some anyway if the HP booth is wonderfully boring. :^)
>
> BTW, should we move to a "linux" or "linux-2.4" repository?
> I have no clue what the mechanics are of doing such a move but
> this merge might be a good time to do it.
>
> thanks,
> grant
>
> Grant Grundler
> Unix Systems Enablement Lab
> +1.408.447.7253
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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David,

Thanks for the glibc fix.  That solved the problem.  I have
successfully built all the tools using the recipe.

- Ryan

David Huggins-Daines wrote:

> Ryan Bradetich <rbradetich@uswest.net> writes:
>
> > Unfortunately, the current glibc cvs source will not build for me
>
> > ../sysdeps/unix/sysv/linux/sigaction.c: In function `__sigaction':
> > ../sysdeps/unix/sysv/linux/sigaction.c:77: structure has no member named
> > `sa_restorer'
>
> Urgh.  This is my fault.  Sorry, I forgot to actually test that patch
> to glibc it seems.  Fixing it now.
>
> --
> dhd@linuxcare.com, http://www.linuxcare.com/
> Linuxcare. Support for the revolution.


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My experience from 712/60-100 workstations is that
"boot scsi.3.0"(cd rom scsi id = 3) won't boot up unless you
type "BOOT SCSI.3.0".

Help it helps your problem and Good luck

tj




>From: "T. Martin" <catfish@alltel.net>
>To: parisc-linux@thepuffingroup.com
>Subject: [parisc-linux] off topic.
>Date: Wed, 9 Aug 2000 21:32:45 -0500 (CDT)
>
>  Hello,
>  I know this is off topic but I have got a copy of NeXT (sparc HPPA
>Intel) I can get the Intel and sparc to install fine but I'm trying to use
>the sun external cdrom on my HP 715/75 to install from and it will not
>boot off the cdrom.
>  If anyone has done this let me know please. off the list.
>Terry
>
>
>catfish: icq #20116127
>
>
>---------------------------------------------------------------------------
>To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.
>

________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] 64-bit binutils problem
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ok, i'm in way over my head here.

in arch/parisc64/real/head.S:

        /* And the return address(es) too */
        ldil            L%start_parisc,%r10
        ldo             R%start_parisc(%r10),%r10
        depdi           0, 31, 32, %r10
        mtctl           %r10,%cr18
        ldo             4(%r10),%r10
        mtctl           %r10,%cr18

which (after linking) becomes:

    c0100074:   21 42 28 07     ldil -3fcfb000,r10
    c0100078:   35 4a 09 c0     ldo 4e0(r10),r10
    c010007c:   f5 40 0c 00     depdi 0,31,32,r10
    c0100080:   02 4a 18 40     mtctl r10,pcoq
    c0100084:   35 4a 00 08     ldo 4(r10),r10
    c0100088:   02 4a 18 40     mtctl r10,pcoq

however, C03054E0 is in the middle of gateway_init and start_parisc is
nowhere to be found, except as:

0000000000000000       F *UND*  0000000000000304 start_parisc

which seems rather bogus to me.  i'll put my compiled kernel tree up on
pehc:/home/willy/parisc64/ in a few moments.

p.s.  does anyone want to change the `-3fcfb000' to an unsigned representation?
this would please me more:

    c0100074:   21 42 28 07     ldil ffffffffc0305000,r10
    c0100078:   35 4a 09 c0     ldo 4e0(r10),r10
    c010007c:   f5 40 0c 00     depdi 0,31,32,r10

as it would make it more clear exactly what's going on.


p.p.s.  anyone know why my piece of debug code:

        ldil            0xdecf0000, %r9

is getting assembled as:

    c0100000:   21 20 0f 00     ldil 78000000,r9

? ser pim hpmc dumps show the value 78000008 in r9, so i'm convinced it's
not objdump misdisassembling it.

-- 
Revolutions do not require corporate support.


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From: Alan Modra <alan@linuxcare.com.au>
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On 10 Aug 2000, David Huggins-Daines wrote:

> Oh boy, it's worse.  It looks like $$dyncall has been clobbering %r19
> with bogus values all along, actually, because we're only using four
> bytes for our PLABELs, and it wants to load the linkage table pointer
> from the second (non-existent) word:
>

Hi David,

On thinking about this $$dyncall issue a bit more, what use are PLABELs in
PIC code anyway?  As far as I can see, PLABELs are used for two things:
1) to provide an unique address for a function
2) as a place to hang argument relocation information

We're not doing (2), and (1) is satisfied by the value in the PLTGOT.

So...  I can turn a PLABEL reference into a GOT reference, which will
magically fix the $$dyncall problem.

Comments?

Alan Modra
-- 
Linuxcare.  Support for the Revolution.




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On Thu, 10 Aug 2000, Matthew Wilcox wrote:

> p.p.s.  anyone know why my piece of debug code:
> 
>         ldil            0xdecf0000, %r9
> 
> is getting assembled as:
> 
>     c0100000:   21 20 0f 00     ldil 78000000,r9

You've told the assembler to plug in the constant 0xdecf0000 to a ldil
instruction.  ldil has a 21 bit field so you only get the bottom 21 bits
of your constant.  The number they represent is the constant shifted
left by 11 bits.  Just happens to be 78000000  :-)

Try "ldil L%0xdecf000,%r9"

'twould be a lot nicer if "objdump -d" produced output that could be fed
back into the assembler, in which case you'd see the L%.  I may even fix
it one day when I find I have nothing to do...

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: Jeffrey A Law <law@cygnus.com>
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Subject: Re: Millicode calls, GP register, ld -r
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To: Alan Modra <alan@linuxcare.com.au>
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  In message <Pine.LNX.4.21.0008111648380.29780-100000@front.linuxcare.com.au>y
ou write:
  > 
  > Hi David,
  > 
  > On thinking about this $$dyncall issue a bit more, what use are PLABELs in
  > PIC code anyway?  As far as I can see, PLABELs are used for two things:
  > 1) to provide an unique address for a function
  > 2) as a place to hang argument relocation information
  > 
  > We're not doing (2), and (1) is satisfied by the value in the PLTGOT.
  > 
  > So...  I can turn a PLABEL reference into a GOT reference, which will
  > magically fix the $$dyncall problem.
  > 
  > Comments?
The other way it's used is to handle intra-space calls/returns.  I don't know
if that's an issue for y'all or not.

jeff

jeff


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On Fri, Aug 11, 2000 at 06:30:36AM -0600, Jeffrey A Law wrote:
> The other way it's used is to handle intra-space calls/returns.  I don't know
> if that's an issue for y'all or not.

we just use one space for each process, so we never call into a different
space, except to do syscalls.

-- 
Revolutions do not require corporate support.


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> 
> On Fri, Aug 11, 2000 at 06:30:36AM -0600, Jeffrey A Law wrote:
> > The other way it's used is to handle intra-space calls/returns.  I don't know
> > if that's an issue for y'all or not.
> 
> we just use one space for each process, so we never call into a different
> space, except to do syscalls.

You might want to look at the code following line 6319 in pa.md (gcc 2.96)
to see that it does what you want for EH handling under linux.  This is for
builtin_longjmp.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Thu, Aug 10, 2000 at 06:06:24PM -0400, Matthew Wilcox wrote:
> 
> ok, i'm in way over my head here.

to help anyone trying to reproduce the problem, i've created a simpler
testcase.  it's findable at

ftp://puffin.external.hp.com/pub/parisc/debug/64link.tgz

and contains a file called `Makescript' which shows you how I got from
each of the source files to the object files.  it's only 19k, not 90+MB
now :-)

-- 
Revolutions do not require corporate support.


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Bjorn Helgaas wrote:
> If Linux uses a different gateway page address than HP-UX (which I
> think is a good idea), why not use a strategy like that used for
> 64-bit HP-UX apps, where the kernel supplies the address in a
> register at application startup?

OK, I'm convinced.  I've changed unistd.h to use 0xC0000404 (on the next
page) for the syscall gateway, although we can easily change it back.

The ``Assembly Language Reference Manual'' I have says:
  Refer to the /HP-UX Reference/ manual for more information on HP-UX
system
  calls.

Anyone know what manual they're talking about?  I'd like to find out
what to do for syscalls that take more than 4 arguments, like mmap and
recvfrom and sendto.

Mike

-- 
81996.85 73813.97


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Xref: news.gmane.org gmane.linux.ports.parisc:7683

On Wed, Aug 09, 2000 at 10:36:24PM -0600, Ryan Bradetich wrote:
> Will the port name change from parisc to hppa at this time too?
> 
> ie... Will the following directories change?
> 
> Documentation/parisc
> arch/parisc
> arch/parisc64
> include/asm-parisc
> include/asm-parisc64

I don't plan to.  Does anyone really really want this to change?

> Let me know when/where and I'll do what I can to help with the merge.

Thanks, I appreciate the offer.

-- 
Revolutions do not require corporate support.


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Alan Modra <alan@linuxcare.com.au> writes:

> So...  I can turn a PLABEL reference into a GOT reference, which will
> magically fix the $$dyncall problem.

Yes, that's the right idea.  However it only works for external
symbols, and you still need a PLABEL32 relocation for function
pointers to local symbols within a shared object (like dl_main for
instance, hint hint :-)

I'll try to take a shot at it but I still don't fully comprehend the
BFD code.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Matthew Wilcox said:
> > Will the port name change from parisc to hppa at this time too?
> > 
> > ie... Will the following directories change?
> > 
> > Documentation/parisc
> > arch/parisc
> > arch/parisc64
> > include/asm-parisc
> > include/asm-parisc64
> 
> I don't plan to.  Does anyone really really want this to change?

While I don't think renaming anything with 'parisc' in its name will
help anything, I do think that to avoid confusion some symbolic links
should be created.  eg hppa/ -> parisc/

Just to avoid any confusion ... presumably the README.hppa would explain
what is going on.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: Millicode calls, GP register, ld -r
Date: 11 Aug 2000 18:35:49 -0400
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To: Alan Modra <alan@linuxcare.com.au>
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David Huggins-Daines <dhd@linuxcare.com> writes:

> Alan Modra <alan@linuxcare.com.au> writes:
> 
> > So...  I can turn a PLABEL reference into a GOT reference, which will
> > magically fix the $$dyncall problem.
> 
> Yes, that's the right idea.  However it only works for external
> symbols, and you still need a PLABEL32 relocation for function
> pointers to local symbols within a shared object (like dl_main for
> instance, hint hint :-)
> 
> I'll try to take a shot at it but I still don't fully comprehend the
> BFD code.

Here's an (ugly) patch that works.  Please verify that the last chunk
is okay - ld was outputting bogus PLABEL32 relocations when things
were compiled with -ffunction-sections, because it was effectively
calculating the addend as the offset within the input section.

With this patch ld.so manages to link itself again.

Index: bfd/elf32-hppa.c
===================================================================
RCS file: /home/cvs/parisc/binutils-2.10/bfd/elf32-hppa.c,v
retrieving revision 1.13.2.25
diff -u -r1.13.2.25 elf32-hppa.c
--- elf32-hppa.c	2000/08/11 18:12:40	1.13.2.25
+++ elf32-hppa.c	2000/08/12 04:28:20
@@ -1058,9 +1058,14 @@
 	    }
 	  break;
 
+	case R_PARISC_PLABEL32:
+	  /* In this case, if it's local, we don't need a .plt entry,
+             but we might need to generate a dynamic relocation. */
+	  if (h == NULL)
+	    goto local_plabel;
+
 	case R_PARISC_PLABEL14R: /* "Official" procedure labels.  */
 	case R_PARISC_PLABEL21L:
-	case R_PARISC_PLABEL32:
 	case R_PARISC_PCREL17C:
 	case R_PARISC_PCREL17F:
 	case R_PARISC_PCREL22F:
@@ -1131,6 +1136,7 @@
 	  /* Fall through.  */
 #endif
 
+	local_plabel:
 	case R_PARISC_DIR32: /* .word, PARISC.unwind relocs.  */
 
 	  /* Flag this symbol as having a non-got, non-plt reference
@@ -2738,12 +2744,16 @@
 			 + hplink->sgot->output_section->vma);
 	  break;
 
+	case R_PARISC_PLABEL32:
+	  /* As in check_relocs, we may need to output a dynamic reloc
+             here even for local symbols. */
+	  if (h == NULL)
+	    goto local_plabel;
 	case R_PARISC_PLABEL14R:
 	case R_PARISC_PLABEL21L:
-	case R_PARISC_PLABEL32:
 	  if (elf_hash_table (info)->dynamic_sections_created
 	      && h != NULL
-	      && h->elf.plt.offset != -1)
+	      && h->elf.plt.offset != (bfd_vma) -1)
 	    {
 	      /* PLABELs contain function pointers.  Relocation is to
 		 the entry for the function in the .plt.  The magic +2
@@ -2756,6 +2766,7 @@
 	    }
 	  break;
 
+	local_plabel:
 	case R_PARISC_DIR17F:
 	case R_PARISC_DIR17R:
 	case R_PARISC_DIR14R:
@@ -2832,14 +2843,18 @@
 		{
 		  int indx = 0;
 
+		  /* Add the absolute offset of the symbol. */
+		  outrel.r_addend += relocation;
+
 		  if (! bfd_is_abs_section (sym_sec))
 		    {
 		      indx = elf_section_data (sym_sec->output_section)->dynindx;
-		      outrel.r_addend -= (sym_sec->output_offset
-					  + sym_sec->output_section->vma);
+		      /* Subtract out the output section's address (but
+                         not the offset of the input section in the
+                         output section!). */
+		      outrel.r_addend -= sym_sec->output_section->vma;
 		    }
 
-		  outrel.r_addend += relocation;
 		  outrel.r_info = ELF32_R_INFO (indx, r_type);
 		}
 


-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Millicode calls, GP register, ld -r
Date: Sat, 12 Aug 2000 10:17:52 +1000 (EST)
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On 11 Aug 2000, David Huggins-Daines wrote:

> Here's an (ugly) patch that works.  Please verify that the last chunk

Looks OK to me.

-- 
Linuxcare.  Support for the Revolution.


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: Millicode calls, GP register, ld -r
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On Sat, 12 Aug 2000, Alan Modra wrote:

> On 11 Aug 2000, David Huggins-Daines wrote:
> 
> > Here's an (ugly) patch that works.  Please verify that the last chunk
> 
> Looks OK to me.

I'll install a slightly modified version of your patch.  The other PLABEL
relocs should be handled as for PLABEL32, not that it matters for gcc
output as I've never caught gcc generating code that used PLABEL14R and
PLABEL21L.  A pity, because current gcc PIC code for handling function
pointers is rather inefficient.  Typically, you get something like:

.LC1:
        .word P'bar
.
.
        addil LT'.LC1,%r19
        ldw RT'.LC1(%r1),%r22
        ldw 0(%r22),%r22

which could all be replaced with

	ldil LP'bar,%r22
	ldo RP'bar(%r22),%r22

saving on code size, memory accesses, and relocs.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Millicode calls, GP register, ld -r
Date: 12 Aug 2000 11:23:35 -0400
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Alan Modra <alan@linuxcare.com.au> writes:

> I'll install a slightly modified version of your patch.  The other PLABEL
> relocs should be handled as for PLABEL32, not that it matters for gcc
> output as I've never caught gcc generating code that used PLABEL14R and
> PLABEL21L.  A pity, because current gcc PIC code for handling function
> pointers is rather inefficient.  Typically, you get something like:
> 
> .LC1:
>         .word P'bar
> .
> .
>         addil LT'.LC1,%r19
>         ldw RT'.LC1(%r1),%r22
>         ldw 0(%r22),%r22
> 
> which could all be replaced with
> 
> 	ldil LP'bar,%r22
> 	ldo RP'bar(%r22),%r22
> 
> saving on code size, memory accesses, and relocs.

Interesting.  It would be trivial to hack that into GCC, I just wonder
if there's some good reason it hasn't been done before.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: Millicode calls, GP register, ld -r
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In-Reply-To: <87punemrk8.fsf@linuxcare.com> from "David Huggins-Daines" at Aug 12, 2000 11:23:35 am
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> Alan Modra <alan@linuxcare.com.au> writes:
> 
> > I'll install a slightly modified version of your patch.  The other PLABEL
> > relocs should be handled as for PLABEL32, not that it matters for gcc
> > output as I've never caught gcc generating code that used PLABEL14R and
> > PLABEL21L.  A pity, because current gcc PIC code for handling function
> > pointers is rather inefficient.  Typically, you get something like:
> > 
> > .LC1:
> >         .word P'bar
> > .
> > .
> >         addil LT'.LC1,%r19
> >         ldw RT'.LC1(%r1),%r22
> >         ldw 0(%r22),%r22
> > 
> > which could all be replaced with
> > 
> > 	ldil LP'bar,%r22
> > 	ldo RP'bar(%r22),%r22
> > 
> > saving on code size, memory accesses, and relocs.
> 
> Interesting.  It would be trivial to hack that into GCC, I just wonder
> if there's some good reason it hasn't been done before.

The HP linker `-O' option eliminates unnecessary ADDIL instructions and
dead procedures.  Probably, it wasn't deemed necessary.  However, not
many remember to include -Wl,-O in their link flags.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: Millicode calls, GP register, ld -r
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"John David Anglin" <dave@hiauly1.hia.nrc.ca> writes:

> The HP linker `-O' option eliminates unnecessary ADDIL instructions

Yes, currently our code generation is absolute crap, because we are
using ADDIL+LDO sequences for absolutely every DP or DLT
relative/indirect access.

Other BFD and GCC targets have optimizations to use 'short' data, bss,
got, and sometimes plt sections when possible.  Long term I would
really like to implement this for hppa-linux.

I'm not at all sure how this is done though - can anyone point me to
some code or documentation that explains it?

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Subject: Re: Millicode calls, GP register, ld -r
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             <87punemrk8.fsf@linuxcare.com> 
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  In message <87punemrk8.fsf@linuxcare.com>you write:
  > Alan Modra <alan@linuxcare.com.au> writes:
  > 
  > > I'll install a slightly modified version of your patch.  The other PLABEL
  > > relocs should be handled as for PLABEL32, not that it matters for gcc
  > > output as I've never caught gcc generating code that used PLABEL14R and
  > > PLABEL21L.  A pity, because current gcc PIC code for handling function
  > > pointers is rather inefficient.  Typically, you get something like:
  > > 
  > > .LC1:
  > >         .word P'bar
  > > .
  > > .
  > >         addil LT'.LC1,%r19
  > >         ldw RT'.LC1(%r1),%r22
  > >         ldw 0(%r22),%r22
  > > 
  > > which could all be replaced with
  > > 
  > > 	ldil LP'bar,%r22
  > > 	ldo RP'bar(%r22),%r22
  > > 
  > > saving on code size, memory accesses, and relocs.
  > 
  > Interesting.  It would be trivial to hack that into GCC, I just wonder
  > if there's some good reason it hasn't been done before.
"inline plabels" used to be in GCC, but were removed a few years ago; they
were abolished roughly 4 years ago.

My recollection was that the inline plabel sequence needed for MPE was 
actually less efficient than getting the value out of memory.   And
HP didn't believe the benefit from having an inline sequence for the HPUX
calling conventions was worth the extra maintenance burden in their
compiler.  GCC (of course) followed HP's recommendations and abolished
inline plabels.

jeff


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From: Stan Sieler <sieler@allegro.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:7693

Mike writes:
> Anyone know what manual they're talking about?  I'd like to find out
> what to do for syscalls that take more than 4 arguments, like mmap and
> recvfrom and sendto.

Sounds like the HP-UX Application Binary Interface (or
was it the Application Programming Interface...two different manuals) from the
Precision RISC Organization (or, more exactly,
from HP...but developed for PRO) would be quite useful.  It (the
one that discusses system calls) may provide some
info about where parameters go.

Unfortunately, I'm miles away from my copy.  Maybe someone
from HP can comment on the manual?

BTW, I like the different gateway address better than the different range.
 

-- 
Stan Sieler                                          sieler@allegro.com
                                     http://www.allegro.com/sieler.html


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Just felt like sharing...  (no pun intended)
Date: 12 Aug 2000 15:11:09 -0400
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[dhd@tarwebok] ~/src/parisc$ cat libhello.c
int foo(int bar)
{
	return bar + 42;
}

[dhd@tarwebok] ~/src/parisc$ cat hello-shared.c 
int main()
{
	extern int foo(int bar);
	int (*gar)(int) = foo;
	printf("Hello shared library world!\n");
	printf("The answer is %d, or maybe %d\n", foo(0), (*gar)(0));
	return 0;
}
[dhd@tarwebok] ~/src/parisc$ hppa-linux-gcc -fPIC -shared -o /home/nfsroot/parisc/libhello.so libhello.c 
[dhd@tarwebok] ~/src/parisc$ hppa-linux-gcc -o /home/nfsroot/parisc/hello-shared hello-shared.c /usr/local/lib/gcc-lib/hppa-linux/2.96/libgcc.a -L/home/nfsroot/parisc -lhello

(... and, over on the serial console window ...)

# uname -a
Linux 10.160.240.101 2.3.99-pre8 #230 Fri Aug 11 13:59:53 EDT 2000 parisc unknown
# ls -l ld.so
-rwxr-xr-x    1 1000     103        405189 Aug 12 18:58 ld.so
# ./ld.so
Usage: ld.so [OPTION]... EXECUTABLE-FILE [ARGS-FOR-PROGRAM...]
You have invoked `ld.so', the helper program for shared library executables.
This program usually lives in the file `/lib/ld.so', and special directives
in executable files using ELF shared libraries tell the system's program
loader to load the helper program from this file.  This helper program loads
the shared libraries needed by the program executable, prepares the program
to run, and runs it.  You may invoke this helper program directly from the
command line to load and run an ELF executable file; this is like executing
that file itself, but always uses this helper program from the file you
specified, instead of the helper program file specified in the executable
file you run.  This is mostly of use for maintainers to test new versions
of this helper program; chances are you did not intend to run this program.

  --list                list all dependencies and how they are resolved
  --verify              verify that given object really is a dynamically linked
                        object we can handle
  --library-path PATH   use given PATH instead of content of the environment
                        variable LD_LIBRARY_PATH
  --inhibit-rpath LIST  ignore RUNPATH and RPATH information in object names
                        in LIST
# ls -l hello-shared libhello.so
-rwxr-xr-x    1 1000     103       1338314 Aug 12 17:23 hello-shared
-rwxr-xr-x    1 1000     103          8486 Aug 11 19:02 libhello.so
# export LD_LIBRARY_PATH=/
# ./ld.so --list hello-shared
        libhello.so => /libhello.so (0x40001000)
# ./ld.so hello-shared
Hello shared library world!
The answer is 42, or maybe 42

There's still a lot of work to be done, of course - glibc doesn't
completely build with --enable-shared yet, and libdl.so is going to be
somewhat more challenging (luckily the IA-64 people have already
encountered some of the same issues).  Also note the kludgy way we
have to explicitly link libgcc.a, which was mentioned in a previous
thread.

I just thought this was pretty cool :-)

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Dave Gilbert <gilbertd@treblig.org>
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Subject: Re: [parisc-linux] Just felt like sharing...  (no pun intended)
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On 12 Aug 2000, David Huggins-Daines wrote:

> # ./ld.so hello-shared
> Hello shared library world!
> The answer is 42, or maybe 42

Good work!
 
> There's still a lot of work to be done, of course - glibc doesn't
> completely build with --enable-shared yet, and libdl.so is going to be
> somewhat more challenging (luckily the IA-64 people have already
> encountered some of the same issues).  Also note the kludgy way we
> have to explicitly link libgcc.a, which was mentioned in a previous
> thread.

Also Linux/Alpha probably has most of the same issues solved for a long
time.

> I just thought this was pretty cool :-)

Indeed.

Dave

-- 
 ---------------- Have a happy GNU millennium! ----------------------   
/ Dr. David Alan Gilbert      | Running GNU/Linux on       |  Happy  \ 
\   gro.gilbert @ treblig.org |  Alpha, x86, ARM and SPARC |  In Hex /
 ____________________________|___ http://www.treblig.org  |________/


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From: David Huggins-Daines <dhd@linuxcare.com>
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Dave Gilbert <gilbertd@treblig.org> writes:

> Good work!

Well, Alan Modra did most of the work.  Getting binutils up to snuff
was certainly a lot more complicated than writing a few lines of
assembly code in dl-machine.h :-)

> > There's still a lot of work to be done, of course - glibc doesn't
> > completely build with --enable-shared yet, and libdl.so is going to be
> > somewhat more challenging (luckily the IA-64 people have already
> > encountered some of the same issues).  Also note the kludgy way we
> > have to explicitly link libgcc.a, which was mentioned in a previous
> > thread.
> 
> Also Linux/Alpha probably has most of the same issues solved for a long
> time.

Not really, because on Alpha, function pointers are actually function
pointers, branches are longer than 256K, the linker and the assembler
know how to give you the offset from the GP to the PC, all code is
PIC, and perhaps most importantly, Digital Unix's runtime architecture
is reasonably sane ;-)

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: AJIT D BOBRA <bobra@prl.ernet.in>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP 9000/735 systems....
Date: Mon, 14 Aug 2000 14:41:59 +0530
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This is a multi-part message in MIME format.

--------------167E2781446B
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Hi,

	Greetings  !!

	We have three Hp 9000/735 machines running HP-UX 9.01. We are now
interested in loading LINUX on them and scrap HP-UX. What are the
chances that we can do that ?



	If we can, then Could you pl guide us step by step procedure to do that
change. We have been using LINUX on PC's.





regards.

bye




ajit bobra

--------------167E2781446B
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**********************************

Ajit D. Bobra
Astronomy & Astrophysics Division
Physical Research Laboratory
Navrangpura
Ahmedabad  380 009
INDIA

e-mail	:	bobra@prl.ernet.in
HomePage:	http://www.prl.ernet.in/~bobra

Phone	:	Off ::(91 79)  6302 129
     	:	Res ::(91 79)  6852 334
		
Fax	:	    ::(91 79)  6301 502


**********************************


--------------167E2781446B--


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On Mon, Aug 14, 2000 at 02:41:59PM +0530, AJIT D BOBRA wrote:
> 	We have three Hp 9000/735 machines running HP-UX 9.01. We are now
> interested in loading LINUX on them and scrap HP-UX. What are the
> chances that we can do that ?

depends what you want to do really.  you stand a significantly better
chance of being able to do that if all you want is to watch the machine
crash :-)

we have no intention of providing an X server (anyone want to start
working on that...?), but you should be able to try the alpha release
for the 712 on a 735 and gasp in amazement as you manage to execute
simple shell commands.

-- 
Revolutions do not require corporate support.


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i've been messing about trying to get the most efficient semaphore
implementation that I can.  Linux semaphores are theoretically n-way
exclusion, but I can't actually see any non-mutex (1-way) exclusion.
Linux also has read-write mutexes, read-write spinlocks and ordinary
spinlocks, but i'm not going to deal with those for the moment.

The design of the semaphore is to optimise _heavily_ for the uncontended
case.  ``If you have contention, redesign your subsystem so you don't
have contention.''  So here's my go at it.  I haven't even tested that
this compiles, because I'm sure that someone else is going to come up
with a better design than I will.

struct semaphore {
        int exclusive;
        int sleepers;
        wait_queue_head_t wait;
#if WAITQUEUE_DEBUG
        long __magic;
#endif
} __attribute__((aligned (16))); /* Align to 16 bytes for the sake of ldcw */

#define __SEMAPHORE_INITIALIZER(name,count)                     \
{                                                               \
        exclusive: 0,                                           \
        sleepers: -count,                                       \
        wait: __WAIT_QUEUE_HEAD_INITIALIZER((name).wait),       \
        __SEM_DEBUG_INIT(name)                                  \
}

extern __inline__ void down(struct semaphore * sem)
{
        register int _r26 asm ("r26") = sem;
        register int tmp;
#if WAITQUEUE_DEBUG
        CHECK_MAGIC(sem->__magic);
#endif

        __volatile__ asm(
"1:     ldcw    0(%0), %1\n"            /* exclusive access to this */
"       movb,=  %1, %%r0, 1b\n"         /* section of code */
"       ldw     4(%0), %1\n"            /* get number of sleepers */
"       addi,>  1, %1, %1\n"            /* increment */
"       b,l     __down_failed, %%r2\n"  /* if this is > 0, we're contending */
"       stw     %1, 4(%0)\n"            /* always write back sleepers */
"       stw     %0, 0(%0)\n"            /* we're done with our access */
                : : "r" (_r26) : "r" (tmp)
        );
}

i haven't written down_failed yet, but to my mind, it looks rather like:

__down_failed:
	stw	%gr26, 0(%gr26)
	... set up stack frame ...
	... call __down() which is written in C and sleeps.

see arch/i386/kernel/semaphore.c for how __down() does its stuff.
Only I'm trying to avoid using atomic_t variables, cos they're not
exactly fast on parisc right now.

Better suggestions appreciated.

p.s.

my original scheme was less ugly:

"1:     ldcw    0(%0), %1\n"            /* exclusive access to this */
"       movb,=  %1, %%r0, 1b\n"         /* section of code */
"       ldw     4(%0), %1\n"            /* get number of sleepers */
"       addi    1, %1, %1\n"            /* increment */
"       stw     %1, 4(%0)\n"            /* always write back sleepers */
"       movb,>  %1, %%r0, __down_failed\n" /* if this is > 0, we're contending */
"       stw     %0, 0(%0)\n"            /* we're done with our access */

but this can't branch far enough to get to __down_failed.  now, we could do
some cunning stuff with stubs perhaps, but that seems bad too.

-- 
Revolutions do not require corporate support.


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From: Steven Pritchard <steve@silug.org>
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Subject: Re: [parisc-linux] HP 9000/735 systems....
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 "from Matthew Wilcox at Aug 14, 2000 09:59:08 am"
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Matthew Wilcox said:
> we have no intention of providing an X server (anyone want to start
> working on that...?)

What are the odds that the stock X11 Xhp would just work (or could be
made to just work)?

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(618)398-7320             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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Subject: Re: [parisc-linux] HP 9000/735 systems....
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> From: Steven Pritchard <steve@silug.org>
> Subject: Re: [parisc-linux] HP 9000/735 systems....
> To: Matthew Wilcox <matthew@wil.cx>
> Date: Tue, 15 Aug 2000 13:43:36 -0500 (CDT)
> 
> Matthew Wilcox said:
> > we have no intention of providing an X server (anyone want to start
> > working on that...?)
> 
> What are the odds that the stock X11 Xhp would just work (or could be
> made to just work)?
> 

Odds should be quite good.  The HP-UX compatibility code that is in the
Mach port was sufficient to run the HP Xserver of that era (circa HP-UX 9.x).
Working on HP-UX compatibility mode would seem like a much better use of
time than trying to write an Xserver for N different HP video cards.

OTOH, if HP is as committed to Linux as they appear to be, then maybe their
X11 group will just port their server to PA Linux and make it available!


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Subject: [parisc-linux] Question about compatibility...
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 Hey I just had a thought is there anyway that Linux is going to be
binary compatible with HP-Unix like Alpha-Linux can run Tru64 bins if
theyre statically compiled. 
Terry


catfish: icq #20116127



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Subject: [parisc-linux] test6 merge
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i've not seen any cripplingly bad problems reported to the kernel mailing
list about -test6 (slightly fewer than the normal number of snafus,
i think).  So I intend to go ahead with the merge on Thursday.

Here's the list of files which both we and Linus have changed.

CREDITS
Makefile
drivers/Makefile
drivers/char/Config.in
drivers/char/Makefile
drivers/char/console.c
drivers/char/serial.c
drivers/net/Config.in
drivers/net/Makefile
drivers/net/Space.c
drivers/net/eepro100.c
drivers/net/tulip/eeprom.c
drivers/net/tulip/tulip_core.c
drivers/pci/pci.c
drivers/pci/pci.ids
drivers/scsi/53c7xx.c
drivers/scsi/Makefile
drivers/scsi/hosts.c
drivers/scsi/ncr53c8xx.c
drivers/scsi/sym53c8xx.c
drivers/scsi/sym53c8xx_comm.h
drivers/scsi/sym53c8xx_defs.h
drivers/sound/Config.in
drivers/sound/Makefile
drivers/video/Makefile
drivers/video/dummycon.c
fs/Makefile
fs/binfmt_elf.c
fs/exec.c
fs/nfs/read.c
fs/ufs/super.c
include/linux/binfmts.h
include/linux/fs.h
include/linux/init.h
include/linux/pci_ids.h
include/linux/tty.h
include/linux/ufs_fs.h
include/linux/wait.h
init/main.c
kernel/exit.c
kernel/fork.c
kernel/printk.c
lib/string.c
mm/vmalloc.c

some of these are easier than others.  In particular, some of Linus'
changes are supersets of our changes.  Volunteers for segments of
the tree?  Richard Hirst has already volunteered for drivers/net and
drivers/scsi.  It doesn't look to me like there's a lot to do, so we
should be able to churn through it reasonably quickly.  I'm going to
provisionally set a start time of 9am EDT on Thursday 17th August for
laying down the tag (that's 1pm GMT, please remember we're in summer
time :-)

There are going to be some API changes to deal with, in particular be
wary of locking changes.

-- 
Revolutions do not require corporate support.


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From: alan@lxorguk.ukuu.org.uk (Alan Cox)
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> I'd suggest *not* using the same gateway page address as HP-UX. If you 
> do, you won't be able to develop a later kernel extension to support 
> HP-UX binaries, unless you allocate syscall numbers carefully.

Doesn't that depend which gateway page you map into each application ?


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On Tue, Aug 15, 2000 at 02:31:45PM -0500, T. Martin wrote:
>  Hey I just had a thought is there anyway that Linux is going to be
> binary compatible with HP-Unix like Alpha-Linux can run Tru64 bins if
> theyre statically compiled. 

linux-2.3/arch/parisc/hpux/ say anything to you?  :-)

Naturally, it's incomplete.  Additions welcomed.

-- 
Revolutions do not require corporate support.


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On Tue, 15 Aug 2000, Steven Pritchard wrote:
> What are the odds that the stock X11 Xhp would just work (or could be
> made to just work)?

Does that use the ROM X11 driver included in graphics devices,
or is it a to-the-metal implementation.  If the latter, is the
source code open?

--
Brian


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] HP 9000/735 systems....
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Mike Hibler wrote:
> Odds should be quite good.  The HP-UX compatibility code that is in the
> Mach port was sufficient to run the HP Xserver of that era (circa HP-UX 9.x).
> Working on HP-UX compatibility mode would seem like a much better use of
> time than trying to write an Xserver for N different HP video cards.

This sounds like a good plan to follow. Who can do this or who can
"borrow" code from the Mach to make this work?

I'm pretty sure this is the quickest/easiest way to get something
working since I've seen it working already.

> OTOH, if HP is as committed to Linux as they appear to be, then maybe their
> X11 group will just port their server to PA Linux and make it available!

I wouldn't count on it. They might. But generally, supporting parisc-linux
is not the same priority as IA64-linux. And despite pretty deep pockets,
HP does not have infinite resources to do everything.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] Question about compatibility...
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Matthew Wilcox <matthew@wil.cx> writes:

> On Tue, Aug 15, 2000 at 02:31:45PM -0500, T. Martin wrote:
> >  Hey I just had a thought is there anyway that Linux is going to be
> > binary compatible with HP-Unix like Alpha-Linux can run Tru64 bins if
> > theyre statically compiled. 
> 
> linux-2.3/arch/parisc/hpux/ say anything to you?  :-)

I might add that Linux on Alpha can run dynamically linked Tru64
binaries too as long as you have the Tru64 dynamic loader and libs
installed :-)

We're hoping that this will eventually work on Linux/PA-RISC too.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] another 64 bit symbol bug
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linking the 64 bit kernel gives me fault_vector as an undefined symbol
in the objdump -x output.

interestingly, old_end_linux_gateway_page is pointing to the address which
should be pointed to by fault_vector and the references to fault_vector
have been relocated properly.

-- 
Revolutions do not require corporate support.


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: [parisc-linux] hppa glibc ld -r
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Hello glibc experts,
  I've hit a snag trying to build a shared hppa glibc with my latest
linker, and I think the only solution is to get rid of the "ld -r" stage
in building glibc.

For those on the list reading this not familiar with the details of
elf32-hppa linking:  PA has a limited range for pc-relative branches, and
the linker needs to insert long branch stubs to reach far off locations.
Long branch stubs (and other stub types) are placed in a special stub
section preceding every linker input section.  If input sections are too
big, we can't even reach the stubs, so using gcc -ffunction-sections helps
to stop "ld -r" packing all the code into one huge .text section.

-ffunction-sections isn't a complete solution though.  If two source files
declare a local function of the same name, "setup", for instance, then
both files will have a section called ".text.setup".  These two sections
will be merged during the "ld -r", which has the unfortunate effect of
moving a local function to a location a long way off from where it's
called.  That's bad, firstly because it means we now need a stub to reach
the function, but more importantly the stubs are not PIC and thus need
relocation information when creating shared libraries.  In particular, for
reasons too complicated to explain here, I don't want to create stubs for
local functions;  It would mean emitting relocs for every *potential*
stub.

Anybody know why glibc uses "ld -r", and if there is a good reason why
we can't just remove the "ld -r"?

Regards, Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Steffen =?ISO-8859-1?Q?L=F6rch?= <sloerch@gmx.de>
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Subject: [parisc-linux] Image-CD crashes !!
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Hello all !

I downloaded the CD-Image MkLinux from the FTP-Server, made a CD and
wanted to
boot from her, but while booting the system hangs with the error:

pdc_cons die !!

Please help me !!! I have a PA-RISC HP9000 Model 712/100, 2.1 GB SCSI HD,
YAMAHA CDR400tx CD-Rom. Whats wrong with ma system?

Thanks for replies !
S.L.

-- 
Sent through GMX FreeMail - http://www.gmx.net


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Image-CD crashes !!
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You need to use a serial console atm, see

http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/08-Aug/0030.html

Richard


On Thu, Aug 17, 2000 at 11:53:29AM +0200, Steffen Lrch wrote:
> Hello all !
> 
> I downloaded the CD-Image MkLinux from the FTP-Server, made a CD and
> wanted to
> boot from her, but while booting the system hangs with the error:
> 
> pdc_cons die !!
> 
> Please help me !!! I have a PA-RISC HP9000 Model 712/100, 2.1 GB SCSI HD,
> YAMAHA CDR400tx CD-Rom. Whats wrong with ma system?
> 
> Thanks for replies !
> S.L.
> 
> -- 
> Sent through GMX FreeMail - http://www.gmx.net
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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From: "H . J . Lu" <hjl@lucon.org>
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Subject: Re: hppa glibc ld -r
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In-Reply-To: <Pine.LNX.4.21.0008171700460.28670-100000@front.linuxcare.com.au>; from alan@linuxcare.com.au on Thu, Aug 17, 2000 at 05:59:48PM +1000
Xref: news.gmane.org gmane.linux.ports.parisc:7713

On Thu, Aug 17, 2000 at 05:59:48PM +1000, Alan Modra wrote:
> 
> -ffunction-sections isn't a complete solution though.  If two source files
> declare a local function of the same name, "setup", for instance, then
> both files will have a section called ".text.setup".  These two sections
> will be merged during the "ld -r", which has the unfortunate effect of

Can you teach ld not to merge ".text.xxxxx" with -r under HPPA?

> moving a local function to a location a long way off from where it's
> called.  That's bad, firstly because it means we now need a stub to reach
> the function, but more importantly the stubs are not PIC and thus need
> relocation information when creating shared libraries.  In particular, for
> reasons too complicated to explain here, I don't want to create stubs for
> local functions;  It would mean emitting relocs for every *potential*
> stub.
> 
> Anybody know why glibc uses "ld -r", and if there is a good reason why
> we can't just remove the "ld -r"?

I don't think it has to be used. --whole-archive will do the same
trick. But "ld -r" is more convenient. With --whole-archive, you may
have to put -Wl,--whole-archive/-Wl,--no-whole-archive around each file
generarted with "ld -r"


H.J.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Incompatibility of PIC and non-PIC
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Xref: news.gmane.org gmane.linux.ports.parisc:7714

Hi,

Shared libraries work well, but we've got a bigger problem now.  Our
PIC and non-PIC code models are mutually incompatible in a big way
(due to the use of %r19 And, it seems, while it's fine if non-PIC
can't be used in shared libraries, it's not all right if PIC can't be
linked statically.

The reason this comes up is that libgcc.a has to be built with -fPIC
since it gets linked into libc.so.  However libgcc.a is also getting
statically linked with the binary itself (the symbols are not exported
by libc.so, though I'm not sure if this is the correct behaviour or
not), and of course it has to get linked in for statically linked
things anyway.

The result is of course that anything which uses 'long long', like,
say, GCC, will crash.

How do other architectures solve this issue? (or do they just have
ABIs that let you mix PIC and non-PIC...)

For that matter how does 32-bit HP/UX solve this issue?

One potential solution is to use %dp as the data pointer across the
board (which would solve the problem of mixing PIC and non-PIC in
static binaries), and generate export stubs for shared library calls
which restore the old %dp value (which would solve the problem of
maintaining the non-PIC %dp, useless though it may be).

<thinking wishful="wishful">
  Another one is to ditch our ... ahem ... unique ABI, use function
  prologues instead, have a single global pointer and a single link
  register, and have PIC, function pointers and dynamic linking work
  the way $DEITY intended :-)
</thinking>

Of course that's a lot more work and would probably involve breaking
the published ELF standard for HPPA, such as it is, as well as
foregoing a lot of code sharing with the rest of the PA-RISC stuff in
gcc and binutils :-(

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Mike Shaver <shaver@netscape.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [hppa-linux] libmilli and linker scripts
Date: Thu, 25 Mar 1999 17:34:43 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:7715

I'm making progress on getting the kernel to compile, and it's now
attempting to link, but I'm confounded by my expected foes:

1) millicode bits:
  net/network.a(socket.o): In function `proto_init':
  socket.o(.text+0x144): undefined reference to `$$dyncall'
and thousands more like it, and $$divI, $$divU and $$remU in the serial
code.  Is there some millicode assembly we could purloin, or should we
write our own somehow?  (Or maybe fix the compiler to do it all inline?)

2) the total absence of a linker script.  Anyone have ideas on:
kernel-in-memory layout, preferably by section?

Mike

-- 
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Incompatibility of PIC and non-PIC
Date: Fri, 18 Aug 2000 10:12:59 +1000 (EST)
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On 17 Aug 2000, David Huggins-Daines wrote:

> The reason this comes up is that libgcc.a has to be built with -fPIC
> since it gets linked into libc.so.  However libgcc.a is also getting
> statically linked with the binary itself (the symbols are not exported
> by libc.so, though I'm not sure if this is the correct behaviour or
> not), and of course it has to get linked in for statically linked
> things anyway.

The libgcc problem can be solved by generating a PIC libgcc.so and non-PIC
libgcc.a

>[snip]
> One potential solution is to use %dp as the data pointer across the
> board (which would solve the problem of mixing PIC and non-PIC in
> static binaries), and generate export stubs for shared library calls
> which restore the old %dp value (which would solve the problem of
> maintaining the non-PIC %dp, useless though it may be).

__builtin_return_address.  See the hoops you'll be jumping through in
gcc/config/pa/pa.c:return_addr_rtx.

> <thinking wishful="wishful">
>   Another one is to ditch our ... ahem ... unique ABI, use function
>   prologues instead, have a single global pointer and a single link
>   register, and have PIC, function pointers and dynamic linking work
>   the way $DEITY intended :-)
> </thinking>
> 
> Of course that's a lot more work and would probably involve breaking
> the published ELF standard for HPPA, such as it is, as well as
> foregoing a lot of code sharing with the rest of the PA-RISC stuff in
> gcc and binutils :-(

One way to keep out current ABI is to generate a .plt and import stubs
when statically linking PIC code.  That should be relatively easy to do in
the linker.

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: Andrew Park <apark@cdf.toronto.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] architecture overview books?
Date: Thu, 17 Aug 2000 21:56:01 -0400 (EDT)
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Hi,

Can all the register information be found in

	PCXL_ers.pdf

file?  I found it in

	http://thepuffingroup.com/parisc/documentation.html

Or are there other sources where I can get architecture overview?



Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
Team BlueShirt Developer                             www.blueshirt.org |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------


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From: Steffen =?ISO-8859-1?Q?L=F6rch?= <sloerch@gmx.de>
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Subject: [parisc-linux] Boot in Graphic-Mode
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Hey, all !!
Thanks for replies yesterday! Today another question from da newebee.
I've installed the CD-Image-Version of da MkLinux, but I don't want to
boot into console mode. How can I boot into graphic mode ?

Thanks,
S.L.

-- 
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Subject: [parisc-linux] Networking
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Hello all !!!
How can I connect my PA-RISC to the network with the CD-Image Version of
the PA-RISC Linux.

Thanks for replies,
S.L.

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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] test6 merge
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Xref: news.gmane.org gmane.linux.ports.parisc:7720

Hi,
  The tulip driver doesn't initialise with the 2.4.0-test6 kernel
(for me, anyway).
The problem is that pci_resource_start (pdev, 0) in tulip_core.c
line 1046, returns 0x0001ff00, where it should (I think) return
0x0000ff00.  I added a printk in drivers/pci/pci.c to show the
start/end values as it filled in the pci_dev->resource table,
and that showed start 0x0000ff00 end 0x0000ff7e.  Don't know
where bit 16 gets added to start..

I just commented out the 'goto err_out_free_netdev' in tulip_core.c
and it now claims to mount nfs root, but cannot find init.
I had to comment out the unregistering of pdc console to
see that.

In 2.3.99pre8 tulip announced that the chip was at 0x1ff00 also,
but it didn't matter because the request_region call was different.

My 53c720 driver doesn't work any more either :-(

Richard


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On Fri, Aug 18, 2000 at 12:49:44PM +0100, Richard Hirst wrote:
> I just commented out the 'goto err_out_free_netdev' in tulip_core.c
> and it now claims to mount nfs root, but cannot find init.

In fact, it gets as far as reading the first block of init,
doesn't like it, then goes and tries to read /bin/sh, finds it is
a link to busybox, reads in the first block of that, and doesn't
like it either:

13:06:01.601816 10.1.1.42.3529076739 > thinkpad.nfs: 104 getattr fh Unknown/1 (DF)
13:06:01.602198 thinkpad.nfs > 10.1.1.42.3529076739: reply ok 96 getattr DIR 40755 ids 0/0 sz 4096 
13:06:01.602930 10.1.1.42.3529076740 > thinkpad.nfs: 104 statfs fh Unknown/1 (DF)
13:06:01.603217 thinkpad.nfs > 10.1.1.42.3529076740: reply ok 48 statfs tsize 8192 bsize 4096 blocks 1795208 bfree 1036107 bavail 944915
13:06:01.654497 10.1.1.42.3529076741 > thinkpad.nfs: 112 lookup fh Unknown/1 "dev" (DF)
13:06:01.654939 thinkpad.nfs > 10.1.1.42.3529076741: reply ok 128 lookup fh Unknown/1
13:06:01.655678 10.1.1.42.3529076742 > thinkpad.nfs: 116 lookup fh Unknown/1 "console" (DF)
13:06:01.656096 thinkpad.nfs > 10.1.1.42.3529076742: reply ok 128 lookup fh Unknown/1
13:06:01.746812 10.1.1.42.3529076743 > thinkpad.nfs: 112 lookup fh Unknown/1 "sbin" (DF)
13:06:01.747229 thinkpad.nfs > 10.1.1.42.3529076743: reply ok 128 lookup fh Unknown/1
13:06:01.748070 10.1.1.42.3529076744 > thinkpad.nfs: 112 lookup fh Unknown/1 "init" (DF)
13:06:01.748482 thinkpad.nfs > 10.1.1.42.3529076744: reply ok 128 lookup fh Unknown/1
13:06:01.752611 10.1.1.42.3529076745 > thinkpad.nfs: 116 read fh Unknown/1 4096 bytes @ 0 (DF)
13:06:01.755048 thinkpad > 10.1.1.42: (frag 29180:1244@2960)
13:06:01.756395 thinkpad > 10.1.1.42: (frag 29180:1480@1480+)
13:06:01.757625 thinkpad.nfs > 10.1.1.42.3529076745: reply ok 1472 read (frag 29180:1480@0+)
13:06:01.801136 10.1.1.42.3529076746 > thinkpad.nfs: 112 lookup fh Unknown/1 "etc" (DF)
13:06:01.801363 thinkpad.nfs > 10.1.1.42.3529076746: reply ok 28 lookup ERROR: No such file or directory
13:06:01.841690 10.1.1.42.3529076747 > thinkpad.nfs: 112 lookup fh Unknown/1 "bin" (DF)
13:06:01.842115 thinkpad.nfs > 10.1.1.42.3529076747: reply ok 128 lookup fh Unknown/1
13:06:01.842839 10.1.1.42.3529076748 > thinkpad.nfs: 112 lookup fh Unknown/1 "init" (DF)
13:06:01.843059 thinkpad.nfs > 10.1.1.42.3529076748: reply ok 28 lookup ERROR: No such file or directory
13:06:01.881209 10.1.1.42.3529076749 > thinkpad.nfs: 112 lookup fh Unknown/1 "sh" (DF)
13:06:01.881792 thinkpad.nfs > 10.1.1.42.3529076749: reply ok 128 lookup fh Unknown/1
13:06:01.882522 10.1.1.42.3529076750 > thinkpad.nfs: 104 readlink fh Unknown/1 (DF)
13:06:01.882761 thinkpad.nfs > 10.1.1.42.3529076750: reply ok 44 readlink "/bin/busybox"
13:06:01.883512 10.1.1.42.3529076751 > thinkpad.nfs: 116 lookup fh Unknown/1 "busybox" (DF)
13:06:01.883917 thinkpad.nfs > 10.1.1.42.3529076751: reply ok 128 lookup fh Unknown/1
13:06:01.887998 10.1.1.42.3529076752 > thinkpad.nfs: 116 read fh Unknown/1 4096 bytes @ 0 (DF)
13:06:01.890360 thinkpad > 10.1.1.42: (frag 29187:1244@2960)
13:06:01.891710 thinkpad > 10.1.1.42: (frag 29187:1480@1480+)
13:06:01.892955 thinkpad.nfs > 10.1.1.42.3529076752: reply ok 1472 read (frag 29187:1480@0+)

I guess it doesn't recognise the file format for some reason..

Richard.


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Subject: Re: [parisc-linux] Boot in Graphic-Mode
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Xref: news.gmane.org gmane.linux.ports.parisc:7722

On Fri, Aug 18, 2000 at 07:38:49AM +0200, Steffen Lvrch wrote:
> Hey, all !!
> Thanks for replies yesterday! Today another question from da newebee.
> I've installed the CD-Image-Version of da MkLinux, but I don't want to

MkLinux?  I presume you're mistaken here; this kernel is not based on Mach.

> boot into console mode. How can I boot into graphic mode ?

Port the X server :-)

-- 
Revolutions do not require corporate support.


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Xref: news.gmane.org gmane.linux.ports.parisc:7723

On Fri, Aug 18, 2000 at 01:08:35PM +0100, Richard Hirst wrote:
> In fact, it gets as far as reading the first block of init,
> doesn't like it, then goes and tries to read /bin/sh, finds it is
> a link to busybox, reads in the first block of that, and doesn't
> like it either:
> I guess it doesn't recognise the file format for some reason..

Sounds plausible; this is one of the things which got overhauled between
2.3.99pre8 and 2.4.0-test6.  i'll investigate.  is your init SOM or ELF?

-- 
Revolutions do not require corporate support.


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Xref: news.gmane.org gmane.linux.ports.parisc:7724

On Fri, Aug 18, 2000 at 08:37:33AM -0400, Matthew Wilcox wrote:
> On Fri, Aug 18, 2000 at 01:08:35PM +0100, Richard Hirst wrote:
> > In fact, it gets as far as reading the first block of init,
> > doesn't like it, then goes and tries to read /bin/sh, finds it is
> > a link to busybox, reads in the first block of that, and doesn't
> > like it either:
> > I guess it doesn't recognise the file format for some reason..
> 
> Sounds plausible; this is one of the things which got overhauled between
> 2.3.99pre8 and 2.4.0-test6.  i'll investigate.  is your init SOM or ELF?

ELF.


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Incompatibility of PIC and non-PIC
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On Fri, 18 Aug 2000, Alan Modra wrote:

> One way to keep out current ABI is to generate a .plt and import stubs
> when statically linking PIC code.  That should be relatively easy to do in
> the linker.

A bit of head-scratching, a couple of added functions, and the linker now
detects PIC functions and handles them appropriately.

bfd/ChangeLog
	* elf32-hppa.c (elf32_hppa_link_hash_entry): Add pic_call.
	(hppa_link_hash_newfunc): Init it.
	(elf32_hppa_link_hash_table): Add pic_call_detected.
	(elf32_hppa_link_hash_table_create): Init it.  multi_subspace too.
	(hppa_type_of_stub): Use an import stub if pic_call.
	(elf32_hppa_check_relocs): Set SEC_HAS_GOT_REF appropriately.
	Don't just create the .got on GOT references, create a .plt too.
	(hppa_handle_PIC_calls): New function.
	(elf32_hppa_size_dynamic_sections): Call it.
	(hppa_setup_plt_PIC_call): New function.
	(elf32_hppa_build_stubs): Call it.
	* section.c (SEC_HAS_GOT_REF): Define new flag for asection.
	* bfd_in2.: Regenerate.


The linker detects PIC functions by noting DLTIND relocations within a
section.  If there aren't any, it's either not PIC, or it's PIC that
doesn't use the .got  Without .got references, we won't need to set
up r19.  Ta DA!

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [hppa-linux] syscall work
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> OK, I'm convinced.  I've changed unistd.h to use 0xC0000404 (on the next
> page) for the syscall gateway, although we can easily change it back.

Isn't the next page at 0xc0001000?  Or does linux have some concept of
1k "pages" even though pages in the TLB are 4k?

-Bob


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Subject: Re: [parisc-linux] architecture overview books?
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Xref: news.gmane.org gmane.linux.ports.parisc:7727

On Thu, Aug 17, 2000 at 09:56:01PM -0400, Andrew Park wrote:
> Hi,
> 
> Can all the register information be found in
> 
> 	PCXL_ers.pdf
> 
> file?  I found it in
> 
> 	http://thepuffingroup.com/parisc/documentation.html
> 
> Or are there other sources where I can get architecture overview?

If you check the links at the bottom, there's one to the PA1.1 and PA2.0
Architecture manuals.

-- 
Revolutions do not require corporate support.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Incompatibility of PIC and non-PIC
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Alan Modra <alan@linuxcare.com.au> writes:

> On Fri, 18 Aug 2000, Alan Modra wrote:
> 
> > One way to keep out current ABI is to generate a .plt and import stubs
> > when statically linking PIC code.  That should be relatively easy to do in
> > the linker.
> 
> A bit of head-scratching, a couple of added functions, and the linker now
> detects PIC functions and handles them appropriately.

Sorry to burst your bubble but this doesn't work in the real world,
where "real world" is defined as 'hppa-linux-gcc -o hello hello.c'

In fact this new linker ends up marking basically everything as
potentially PIC, creating unnecessary import stubs for most functions
in libc.a, and *not* actually switching the relocations to point to
import stubs in the case where I am actually calling PIC in libgcc.a.

Oh and it segfaults on undefined weak symbols though that's easily
fixed.

I'm not even sure where to start fixing this.  I guess I'll try to
find something else to do today :(

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Xref: news.gmane.org gmane.linux.ports.parisc:7729

On Fri, Aug 18, 2000 at 02:45:02PM +0100, Richard Hirst wrote:
> On Fri, Aug 18, 2000 at 08:37:33AM -0400, Matthew Wilcox wrote:
> > On Fri, Aug 18, 2000 at 01:08:35PM +0100, Richard Hirst wrote:
> > > In fact, it gets as far as reading the first block of init,
> > > doesn't like it, then goes and tries to read /bin/sh, finds it is
> > > a link to busybox, reads in the first block of that, and doesn't
> > > like it either:
> > > I guess it doesn't recognise the file format for some reason..
> > 
> > Sounds plausible; this is one of the things which got overhauled between
> > 2.3.99pre8 and 2.4.0-test6.  i'll investigate.  is your init SOM or ELF?
> 
> ELF.

this problem is now fixed.  there seems to be another problem though since
i just got an hpmc in gsc_readl.

-- 
Revolutions do not require corporate support.


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: Incompatibility of PIC and non-PIC
Date: 18 Aug 2000 16:14:27 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:7730

David Huggins-Daines <dhd@linuxcare.com> writes:

> Alan Modra <alan@linuxcare.com.au> writes:
> > A bit of head-scratching, a couple of added functions, and the linker now
> > detects PIC functions and handles them appropriately.
> 
> Sorry to burst your bubble but this doesn't work in the real world,
> where "real world" is defined as 'hppa-linux-gcc -o hello hello.c'

Actually it wasn't so bad after all.  Here's a patch that fixes the
case of statically linked binaries, though I'm reluctant to check it
in because I'm not quite sure the logic is 100% correct; without
removing the check for defined weak symbols, we end up generating a
*lot* of useless import stubs when linking with a static libc, but
this might not be the right way to avoid this.

It's not fixed in the case of dynamically linked binaries that are
statically linked with PIC (which is basically all dynamically linked
binaries since libgcc.a is linked statically).  It might make sense to
unify the generation of import stubs and PLT slots for all PIC symbols
whether they are linked statically or dynamically, but I don't know if
I want to attempt that myself :-)

Oh, also, I've been bad about ChangeLog entries lately, sorry - should
I retroactively create some for the recent checkins I've made?

2000-08-18  David Huggins-Daines  <dhd@linuxcare.com>

	* elf32-hppa.c (final_link_relocate): Call an import stub in
          the case of statically linked PIC symbols.
          (hppa_handle_PIC_calls): Don't try to handle undefined weak
          symbols at all, and don't create import stubs for locally
          defined weak symbols unless they are PIC.

Index: bfd/elf32-hppa.c
===================================================================
RCS file: /home/cvs/parisc/binutils-2.10/bfd/elf32-hppa.c,v
retrieving revision 1.22
diff -u -r1.22 elf32-hppa.c
--- elf32-hppa.c	2000/08/18 15:25:47	1.22
+++ elf32-hppa.c	2000/08/18 20:04:42
@@ -1961,8 +1961,8 @@
       || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
     {
       if (h->plt.refcount <= 0
+	  || h->root.type == bfd_link_hash_undefweak
 	  || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
-	      && h->root.type != bfd_link_hash_defweak
 	      && (!info->shared || info->symbolic)
 	      && !(!info->shared
 		   && (h->root.type == bfd_link_hash_defined
@@ -1971,13 +1971,13 @@
 	{
 	  /* The .plt entry is not needed when:
 	     a) Garbage collection has removed all references to the
-	     symbol, or
-	     b) We know for certain the symbol is defined in this
-	     object, and it's not a weak definition.  Either this
-	     object is the application or we are doing a shared
-	     symbolic link.  As a special sop to the hppa ABI, we
-	     keep a .plt entry for functions in sections containing
-	     PIC code.  */
+	     symbol.
+	     b) It's an undefined weak symbol.
+	     c) We know for certain the symbol is defined in this
+	     object.  Either this object is the application or we are
+	     doing a shared symbolic link.  As a special sop to the
+	     hppa ABI, we keep a .plt entry for functions in sections
+	     containing PIC code.  */
 	  h->plt.offset = (bfd_vma) -1;
 	  h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
 	  return true;
@@ -2851,8 +2851,11 @@
     case R_PARISC_PCREL17F:
     case R_PARISC_PCREL22F:
       /* If this is a call to a function defined in another dynamic
-	 library, then find the import stub in the stub hash.  */
-      if (sym_sec == NULL || sym_sec->output_section == NULL)
+	 library, or if it is a call to a PIC function in the same
+	 object, then find the import stub in the stub hash.  */
+      if (sym_sec == NULL
+	  || sym_sec->output_section == NULL
+	  || (h != NULL && h->pic_call))
 	{
 	  stub_entry = hppa_get_stub_entry (input_section, sym_sec,
 					    h, rel, info);


-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Grant Grundler <grundler@cup.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:7731

Richard Hirst wrote:
> Hi,
>   The tulip driver doesn't initialise with the 2.4.0-test6 kernel
> (for me, anyway).
> The problem is that pci_resource_start (pdev, 0) in tulip_core.c
> line 1046, returns 0x0001ff00, where it should (I think) return
> 0x0000ff00.  I added a printk in drivers/pci/pci.c to show the
> start/end values as it filled in the pci_dev->resource table,
> and that showed start 0x0000ff00 end 0x0000ff7e.  Don't know
> where bit 16 gets added to start..

The bit 16 and up is the PCI bus number. The parisc PCI services use
the bus number to index into the corresponding bus services.

The driver should be using 0x0001ff00 when talking to I/O port
space services (ie inb/outb).

> I just commented out the 'goto err_out_free_netdev' in tulip_core.c
> and it now claims to mount nfs root, but cannot find init.
> I had to comment out the unregistering of pdc console to
> see that.
> 
> In 2.3.99pre8 tulip announced that the chip was at 0x1ff00 also,
> but it didn't matter because the request_region call was different.

Maybe I should take a look at the request_region() call and see what's
up there...It should be a NOP since we trust firmware to uniquely
assign I/O Port and MMIO address space (and I haven't seen any problems
where it doesn't on any platform).

> My 53c720 driver doesn't work any more either :-(

bummer...we'll get em working...

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: Incompatibility of PIC and non-PIC
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On 18 Aug 2000, David Huggins-Daines wrote:

> David Huggins-Daines <dhd@linuxcare.com> writes:
> 
> > Alan Modra <alan@linuxcare.com.au> writes:
> > > A bit of head-scratching, a couple of added functions, and the linker now
> > > detects PIC functions and handles them appropriately.
> > 
> > Sorry to burst your bubble but this doesn't work in the real world,
> > where "real world" is defined as 'hppa-linux-gcc -o hello hello.c'

I was thingk about it in the shower this morning, and _knew_ I'd be seeing
some mail from you.  You see, I really missed the whole point:  The
special PIC stubs are really only needed when intermixing calls to dynamic
libraries and statically linked PIC routines - which case we currently
ignore.  The fully statically linked case be solved by changing gcc to
reserve r19, although I think I'll leave the code there to add the stubs
and .plt entries.  With your fixes, of course!

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Xref: news.gmane.org gmane.linux.ports.parisc:7733

On Fri, Aug 18, 2000 at 03:07:51PM -0700, Grant Grundler wrote:
> The bit 16 and up is the PCI bus number. The parisc PCI services use
> the bus number to index into the corresponding bus services.
> 
> The driver should be using 0x0001ff00 when talking to I/O port
> space services (ie inb/outb).

ok, the problem was that we were modifying .start but not .end so length()
was negative.  see my cvs commit message for more detail.  grant, i'd
appreciate you looking that over, it is untested since i did it on the
aeroplane and i hadn't lugged an a180 with me :-)

> > My 53c720 driver doesn't work any more either :-(
> 
> bummer...we'll get em working...

this _may_ have fixed it.  richard, could you take out the tulip hack you
put in and let me know whether the 720 works now?

however, there is still at least one nasty bug.  on the c3k i was testing
with earlier today, it would hpmc while starting init.  this might be
cured now the pci resources are being mangled properly -- could have
been to do with init trying to open /dev/console perhaps?  this was an
elf sash init, fwiw.

i'm in toronto until sunday evening with no access to parisc hardware, so
don't check out a version of the tree after the LINUS_240_TEST6_PREMERGE
tag unless you want to play hunt-the-bug.  clearly i'd love it if i
checked my email on monday morning and found cvs checkins which fixed
the bugs, but i'm a dreamer :-)

-- 
Revolutions do not require corporate support.


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On 18 Aug 2000, David Huggins-Daines wrote:

> David Huggins-Daines <dhd@linuxcare.com> writes:
> 
> > Alan Modra <alan@linuxcare.com.au> writes:
> > > A bit of head-scratching, a couple of added functions, and the linker now
> > > detects PIC functions and handles them appropriately.
> > 
> > Sorry to burst your bubble but this doesn't work in the real world,
> > where "real world" is defined as 'hppa-linux-gcc -o hello hello.c'

In some ways not having any hardware to run hppa-linux binaries on is
good, as it gives me some excuse.  :-)

Let me know how this one goes.

bfd/ChangeLog
2000-08-19  Alan Modra  <alan@linuxcare.com.au>

	* elf32-hppa.c (hppa_setup_plt_PIC_call): Move function into..
	(hppa_build_one_stub): ..here.
	(elf32_hppa_build_stubs): Don't call it.
	(elf32_hppa_create_dynamic_sections): Don't try to create the .plt
	and .got twice.
	(elf32_hppa_adjust_dynamic_symbol): Handle pic_call here.  Don't
	make symbol dynamic, and don't emit a reloc if pic_call.
	(hppa_handle_PIC_calls): Simplify as we..
	(elf32_hppa_size_dynamic_sections): ..only call hppa_handle_PIC_calls
	when not shared.  Don't create DT_PLTREL etc. entries unless we
	have a .rela.plt section.
	(elf32_hppa_finish_dynamic_symbol): Set up .plt entries with final
	relocated values when it's for a pic_call function we include in
	the link.  Don't create relocs for pic_call either.

2000-08-18  David Huggins-Daines  <dhd@linuxcare.com>

	* elf32-hppa.c (final_link_relocate): Look for an import stub in
	the case of statically linked PIC symbols.

-- 
Linuxcare.  Support for the Revolution.


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From: Andrew Park <apark@cdf.toronto.edu>
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Subject: [parisc-linux] gcc make failures
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Xref: news.gmane.org gmane.linux.ports.parisc:7735

Hi, all

Just wondering ... I'm trying to build gcc, but although I passed in

	make LIBGCC2_INCLUDES=-I$DEST/include

it seems that in later stages, it forgets to include -I$DEST/include flag.
Okay, so for now I manually edited Makefile to pass in that flag, but
then I ran into the following

/local/src/puffin/gcc-build/gcc/g++ -B/local/src/puffin/gcc-build/gcc/ -B/junk/puffin/hppa1.1-linux/bin/ -L/local/src/puffin/gcc-build/hppa1.1-linux/libstdc++ -c -g -O2 -fvtable-thunks -D_GNU_SOURCE -fno-implicit-templates -I../../../gcc/libstdc++ -I../../../gcc/libstdc++/stl -I../libio -I../../../gcc/libstdc++/../libio -nostdinc++ -I/junk/puffin/include  -DF `for N in MAIN ADDCC ADDCF ADDFC SUBCC SUBCF SUBFC MULCC MULCF MULFC DIVCC DIVCF DIVFC PLUS MINUS EQCC EQCF EQFC NECC
NECF NEFC ABS ARG POLAR CONJ NORM COS COSH EXP LOG POWCC POWCF POWCI POWFC SIN SINH SQRT; do echo " -D${N}"; done` \
  ../../../gcc/libstdc++/cinst.cc -o fcomplex.o
In file included from ../../../gcc/libstdc++/complex:8,
                 from ../../../gcc/libstdc++/std/complext.cc:29,
                 from ../../../gcc/libstdc++/cinst.cc:30:
../../../gcc/libstdc++/std/complext.h:314: declaration of `double hypot (double, double)' throws
different exceptions
/junk/puffin/include/bits/mathcalls.h:150: than previous declaration `double hypot (double, double)
throw ()'
make[1]: *** [bigstmp-complx] Error 1
make[1]: Leaving directory `/usr/local/src/puffin/gcc-build/hppa1.1-linux/libstdc++'

By this I figure I might be doing something wrong, hence the e-mail.
I'll appreciate any comment.
Thanks


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
Team BlueShirt Developer                             www.blueshirt.org |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------


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Xref: news.gmane.org gmane.linux.ports.parisc:7736

On Fri, Aug 18, 2000 at 10:04:56PM -0400, Matthew Wilcox wrote:
> this _may_ have fixed it.  richard, could you take out the tulip hack you
> put in and let me know whether the 720 works now?

720 still doesn't work; I'll look in to why that is.

> however, there is still at least one nasty bug.  on the c3k i was testing
> with earlier today, it would hpmc while starting init.  this might be
> cured now the pci resources are being mangled properly -- could have
> been to do with init trying to open /dev/console perhaps?  this was an
> elf sash init, fwiw.
> 
> i'm in toronto until sunday evening with no access to parisc hardware, so
> don't check out a version of the tree after the LINUS_240_TEST6_PREMERGE
> tag unless you want to play hunt-the-bug.  clearly i'd love it if i
> checked my email on monday morning and found cvs checkins which fixed
> the bugs, but i'm a dreamer :-)

Dream on ;-)  I've fixed drivers/char/serial.c to allocate our serial ports
from ttyS00 rather than from ttyS04, and my A180 now boots to a sash
prompt.  That got rid of the 'pci bus 0 not registered" message also.

Richard


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From: Bjorn Helgaas <helgaas@rsn.hp.com>
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>> I'd suggest *not* using the same gateway page address as HP-UX. If you 
>> do, you won't be able to develop a later kernel extension to support 
>> HP-UX binaries, unless you allocate syscall numbers carefully.
>
>Doesn't that depend which gateway page you map into each application ?

Here's one of the subtleties of PA-RISC VM.  Under HP-UX, there's only one
mapping (space 0, offset 0xC0000000) that is shared by all applications.
The libc stub branches to (%sr7,0xC0000000), and %sr7 always contains
a zero while running user apps.

Sharing a mapping between applications is a performance win, because
you can share the TLB entry and you can share the physical page without
worrying about any cache flushing issues.  Since PA-RISC has virtually-
indexed caches, you can only share physical pages under limited conditions
-- see appendix F in the 2.0 arch book.

Of course, you don't *have* to share those mappings, but you will
have more TLB misses and (unless you're careful about virtual address
allocation for aliasing) more cache flushing.


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Xref: news.gmane.org gmane.linux.ports.parisc:7738

My Zalon/53c720 problem is caused by changes in the way drivers/scsi
is built.  It used to build scsi.a, it now builds scsidrv.o.
If I include only one of sym53c8xx.c (for 53c875 on PCI), or ncr53c8xx.c
(for 53c720) all is well - if I include both things break.

Those two files have a number of function names in common; they are
declared static, so it shouldn't matter.  ncr_chip_reset() is one
example.  In practice, the code in ncr53c8xx.c tries to call its local
ncr_chip_reset(), but ends up in the ncr_chip_reset() function in
sym53c8xx.c.

It appeared to work fine with 2.3.99pre8, and I havn't changed my
cross compiler.

Richard


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: Incompatibility of PIC and non-PIC
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David Huggins-Daines <dhd@linuxcare.com> writes:

> @@ -1961,8 +1961,8 @@
>        || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
>      {
>        if (h->plt.refcount <= 0
> +	  || h->root.type == bfd_link_hash_undefweak
>  	  || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
> -	      && h->root.type != bfd_link_hash_defweak
>  	      && (!info->shared || info->symbolic)
>  	      && !(!info->shared
>  		   && (h->root.type == bfd_link_hash_defined

This chunk needs to also check for undefined symbols, it seems.
Here's a better one:

@@ -1961,8 +1961,9 @@
       || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
     {
       if (h->plt.refcount <= 0
+	  || h->root.type == bfd_link_hash_undefweak
+	  || h->root.type == bfd_link_hash_undefined
 	  || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
-	      && h->root.type != bfd_link_hash_defweak
 	      && (!info->shared || info->symbolic)
 	      && !(!info->shared
 		   && (h->root.type == bfd_link_hash_defined


-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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On Sat, Aug 19, 2000 at 04:24:18PM +0100, Richard Hirst wrote:
> Dream on ;-)  I've fixed drivers/char/serial.c to allocate our serial ports
> from ttyS00 rather than from ttyS04, and my A180 now boots to a sash
> prompt.  That got rid of the 'pci bus 0 not registered" message also.

OK, can we now lay down the LINUS_240_TEST6_DEVEL tag to indicate that
we're done with merging and development can begin again?  (If you agree,
you (== Richard) can lay it down rather than waiting for me).

-- 
Revolutions do not require corporate support.


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From: Alan Modra <alan@linuxcare.com.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:7741

On 19 Aug 2000, David Huggins-Daines wrote:

> This chunk needs to also check for undefined symbols, it seems.
> Here's a better one:

cvs update.  I think I've done things properly this time, although you'll
no doubt find some silly bugs left when you actually run code on real
hardware.

BTW, Adding "-p" to your diff options would be a good idea.

Regards, Alan
-- 
Linuxcare.  Support for the Revolution.


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Incompatibility of PIC and non-PIC
Date: Sat, 19 Aug 2000 22:43:36 -0400
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To: Alan Modra <alan@linuxcare.com.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:7742

On Sun, Aug 20, 2000 at 01:07:13PM +1000, Alan Modra wrote:
> On 19 Aug 2000, David Huggins-Daines wrote:
> 
> > This chunk needs to also check for undefined symbols, it seems.
> > Here's a better one:
> 
> cvs update.  I think I've done things properly this time, although you'll
> no doubt find some silly bugs left when you actually run code on real
> hardware.
> 
> BTW, Adding "-p" to your diff options would be a good idea.

so here's a .cvsrc file which should help people:

cvs -z3 -q
diff -uNp
update -Pd
rm -f

btw, is there any option to cvs diff which produces files which can be
applied by any known version of patch?  in my experience, patch can't
find files specified by Index: lines _unless_ both the +++ and the ---
files can't be found -- which is rarely the case with common names such
as Makefile or ChangeLog.  I hacked a copy of patch myself to apply one
of the cvs diff patches you posted here, but there surely has to be a
better way (complaining to Paul Eggert that while patch may or may not be
POSIX or GNU compliant it isn't _USEFUL_ may be the right answer here :-)

-- 
Revolutions do not require corporate support.


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Subject: Re: Incompatibility of PIC and non-PIC
Date: Sun, 20 Aug 2000 14:19:05 +1000 (EST)
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Xref: news.gmane.org gmane.linux.ports.parisc:7743

On Sat, 19 Aug 2000, Matthew Wilcox wrote:

> btw, is there any option to cvs diff which produces files which can be
> applied by any known version of patch?  in my experience, patch can't
> find files specified by Index: lines _unless_ both the +++ and the ---
> files can't be found -- which is rarely the case with common names such
> as Makefile or ChangeLog.

I haven't found one, and it's a real pain.  I tend to edit patches
covering multiple directories before passing them to patch.

"sed -e '/^[+-][+-]/d' < cvs_diff_file | patch -p0 --posix" ought to work.

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Networking
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Xref: news.gmane.org gmane.linux.ports.parisc:7744

Steffen =?ISO-8859-1?Q?L=F6rch?= wrote:
> Hello all !!!
> How can I connect my PA-RISC to the network with the CD-Image Version of
> the PA-RISC Linux.

Yes and no.

Yes in that nfsroot works.
One can also ping the parisc-linux host.
So the kernel/lan driver seems to work fine.

No because networking userspace needs more work or something.
Read the README on the CD for known bugs.
Did I hear you volunteer to fix those?
:^)

grant

> 
> Thanks for replies,
> S.L.
> 
> -- 
> Sent through GMX FreeMail - http://www.gmx.net
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Xref: news.gmane.org gmane.linux.ports.parisc:7745

= Steffen =?ISO-8859-1?Q?L=F6rch?= wrote:
= > Hello all !!!
= > How can I connect my PA-RISC to the network with the CD-Image Version of
= > the PA-RISC Linux.
= 
= Yes and no.
= 
= Yes in that nfsroot works.
= One can also ping the parisc-linux host.
= So the kernel/lan driver seems to work fine.
= 
= No because networking userspace needs more work or something.
= Read the README on the CD for known bugs.
= Did I hear you volunteer to fix those?
= :^)

The kernel on the CD has no bootp stuff because unless you're
on a network that serves a bootp record the boot hangs -- which
didn't seem a good idea!  But this also means the network comes
up unconfigured.

Use ifconfig and route as you normally would on a Linux box to
configure the network.

	-P


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] test6 merge
Date: Sun, 20 Aug 2000 19:20:36 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:7746

On Sat, Aug 19, 2000 at 07:13:35PM -0400, Matthew Wilcox wrote:
> On Sat, Aug 19, 2000 at 04:24:18PM +0100, Richard Hirst wrote:
> > Dream on ;-)  I've fixed drivers/char/serial.c to allocate our serial ports
> > from ttyS00 rather than from ttyS04, and my A180 now boots to a sash
> > prompt.  That got rid of the 'pci bus 0 not registered" message also.
> 
> OK, can we now lay down the LINUS_240_TEST6_DEVEL tag to indicate that
> we're done with merging and development can begin again?  (If you agree,
> you (== Richard) can lay it down rather than waiting for me).

Done.

Richard


From - Thu Nov 08 21:13:11 2018
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From: AJIT D BOBRA <bobra@prl.ernet.in>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: LINUX SUPPORT for HP 9000/735 systems....
Date: Mon, 21 Aug 2000 14:38:45 +0530
Organization: Physical Research Lab, Ahmedabad, INDIA
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To: parisc-linux@thepuffingroup.com, ajit bobra <bobra@prl.ernet.in>
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Xref: news.gmane.org gmane.linux.ports.parisc:7747

This is a multi-part message in MIME format.

--------------167E2781446B
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi,
	Greetings  !!

	I had sent you this mail. You might have sent in, your reply but since
there was a computer crash, I have not received.

	In case you had sent in your reply, kindly sent it again.

	In case you have not, pl send me your reply asap.


regards.


ajit bobra





AJIT D BOBRA wrote:
> 
> Hi,
> 
>         Greetings  !!
> 
>         We have three Hp 9000/735 machines running HP-UX 9.01. We are now
> interested in loading LINUX on them and scrap HP-UX. What are the
> chances that we can do that ?
> 
>         If we can, then Could you pl guide us step by step procedure to do that
> change. We have been using LINUX on PC's.
> 
> regards.
> 
> bye
> 
> ajit bobra
> 
>     ---------------------------------------------------------------
> 
> **********************************
> 
> Ajit D. Bobra
> Astronomy & Astrophysics Division
> Physical Research Laboratory
> Navrangpura
> Ahmedabad  380 009
> INDIA
> 
> e-mail  :       bobra@prl.ernet.in
> HomePage:       http://www.prl.ernet.in/~bobra
> 
> Phone   :       Off ::(91 79)  6302 129
>         :       Res ::(91 79)  6852 334
> 
> Fax     :           ::(91 79)  6301 502
> 
> **********************************

--------------167E2781446B
Content-Type: text/plain; charset=us-ascii; name="myhead"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline; filename="myhead"



**********************************

Ajit D. Bobra
Astronomy & Astrophysics Division
Physical Research Laboratory
Navrangpura
Ahmedabad  380 009
INDIA

e-mail	:	bobra@prl.ernet.in
HomePage:	http://www.prl.ernet.in/~bobra

Phone	:	Off ::(91 79)  6302 129
     	:	Res ::(91 79)  6852 334
		
Fax	:	    ::(91 79)  6301 502


**********************************


--------------167E2781446B--


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Xref: news.gmane.org gmane.linux.ports.parisc:7748

> Of course, you don't *have* to share those mappings, but you will
> have more TLB misses and (unless you're careful about virtual address
> allocation for aliasing) more cache flushing.

Ok - yes so we do want a different address.


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: LINUX SUPPORT for HP 9000/735 systems....
Date: Mon, 21 Aug 2000 08:01:04 -0400
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see
http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/08-Aug/0058.html
for your original message and followups.

-- 
Revolutions do not require corporate support.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Incompatibility of PIC and non-PIC
Date: 21 Aug 2000 09:38:34 -0400
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Alan Modra <alan@linuxcare.com.au> writes:

> cvs update.

Yeah, that message got retired out of order, so to speak.  Trying your
new stuff now.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: Incompatibility of PIC and non-PIC
Date: 21 Aug 2000 09:41:18 -0400
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Alan Modra <alan@linuxcare.com.au> writes:

> I haven't found one, and it's a real pain.  I tend to edit patches
> covering multiple directories before passing them to patch.
> 
> "sed -e '/^[+-][+-]/d' < cvs_diff_file | patch -p0 --posix" ought to work.

Here's a tiny Perl script I wrote for this purpose once in a fit of
pique.  Use the -i option to specify the 'input' directory prefix
(i.e. in the --- line) and -o to specify the 'output' directory
prefix.

#!/usr/bin/perl -p
use strict;
use File::Basename;
use vars qw($in $out $path $name $dir);

BEGIN {
    my @args;
    while (defined($_ = shift)) {
	if (/-i/) {
	    $in = shift;
	    $in =~ s,$,/,;
	    $in =~ tr,/,,s;
	} elsif (/-o/) {
	    $out = shift;
	    $out =~ s,$,/,;
	    $out =~ tr,/,,s;
	} else {
	    push @args, $_;
	}
    }
    $out ||= $in;
    $in  ||= $out;
    @ARGV=@args;
}

/^Index: (.*)/ and do {
    ($name, $dir) = fileparse($1);
};
/^(---|\+\+\+) ([^\t]+)/ and do {
    die "Your CVS isn't broken, $2 doesn't match $name\n" unless $2 eq $name;
    my $prefix = ($1 eq '---') ? $in : $out;
    s,$2,${prefix}${dir}${name},;
};


-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: herrold <herrold@owlriver.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: LINUX SUPPORT for HP 9000/735 systems....
Date: Mon, 21 Aug 2000 10:26:15 -0400 (EDT)
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On Mon, 21 Aug 2000, Matthew Wilcox wrote:

> see
> http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/08-Aug/0058.html
> for your original message and followups.

... A more direct reply might by:

 -- Text User Interface mode should work directly.
 -- X is a bit dicey, and you are invited to tinker and contribute
to the pool.
 -- If there are other aspects which you are interested in, feel
free to ask.

------------

  Matthew, is this a fair summary? -- I was thinking of cutting over
a 735 myself.  I'll keep notes on the conversion, and probably post
a HowTo if this is the case. /// I'll summarize ...

-- Russ Herrold




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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] test6 merge
Date: 21 Aug 2000 13:01:12 -0400
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To: Richard Hirst <rhirst@linuxcare.com>
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Richard Hirst <rhirst@linuxcare.com> writes:

> Those two files have a number of function names in common; they are
> declared static, so it shouldn't matter.  ncr_chip_reset() is one
> example.  In practice, the code in ncr53c8xx.c tries to call its local
> ncr_chip_reset(), but ends up in the ncr_chip_reset() function in
> sym53c8xx.c.
> 
> It appeared to work fine with 2.3.99pre8, and I havn't changed my
> cross compiler.

I'm not seeing this problem here, at least, not based on an
examination of the kernel's object code.

In mine I have:

sym53c8xx: ncr_chip_reset = c01cdec0 (a4)
           ncr_attach     = c02a37e4 (934)
ncr53c8xx: ncr_chip_reset = c01cdf80 (e8)
           ncr_attach     = c02a6ff0 (5d8)

Where ncr_attach calls ncr_chip_reset, it looks like:

    1d34:	0e b3 12 80 	stw  r19,0(sr0,r21)
    1d38:	08 03 02 5a 	copy r3,r26
    1d3c:	e8 40 00 00 	b,l 1d44 <ncr_attach+0x354>,rp
			1d3c: R_PARISC_PCREL17F	ncr_chip_reset

And in the object file, we have:

c02a7334:       0e b3 12 80     stw  r19,0(sr0,r21)
c02a7338:       08 03 02 5a     copy r3,r26
c02a733c:       e8 58 12 fd     b,l c0298cc0 <__init_begin+0xcc0>,rp

Pointing at this stub:

c0298cc0:       20 26 f8 03     ldil -3fe32800,r1
c0298cc4:       e0 20 2f 02     be,n 780(sr4,r1)

0x780 - 0x3fe32800 = 0xc01cdf80, which is the right one.

This is with today's binutils.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Incompatibility of PIC and non-PIC
Date: 21 Aug 2000 13:46:19 -0400
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To: Alan Modra <alan@linuxcare.com.au>
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Alan Modra <alan@linuxcare.com.au> writes:

> In some ways not having any hardware to run hppa-linux binaries on is
> good, as it gives me some excuse.  :-)

Well I'm enjoying tracking these problems down, even if the solutions
I propose are usually wrong :-)

> Let me know how this one goes.

Quite well, once I did this:

Index: bfd/elf32-hppa.c
===================================================================
RCS file: /home/cvs/parisc/binutils-2.10/bfd/elf32-hppa.c,v
retrieving revision 1.24
diff -u -p -r1.24 elf32-hppa.c
--- elf32-hppa.c	2000/08/19 12:21:12	1.24
+++ elf32-hppa.c	2000/08/21 17:39:36
@@ -957,7 +957,8 @@ hppa_build_one_stub (gen_entry, in_arg)
 
       if (!info->shared
 	  && stub_entry->h != NULL
-	  && stub_entry->h->pic_call)
+	  && stub_entry->h->pic_call
+	  && stub_entry->h->elf.plt.offset != (bfd_vma) -1)
 	{
 	  /* Build the .plt entry needed to call a PIC function from
 	     statically linked code.  We don't need any relocs.  */

I'm not sure why it's generating multiple stubs for the same symbol,
though.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] test6 merge
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On Mon, Aug 21, 2000 at 01:01:12PM -0400, David Huggins-Daines wrote:
> Richard Hirst <rhirst@linuxcare.com> writes:
> 
> > Those two files have a number of function names in common; they are
> > declared static, so it shouldn't matter.  ncr_chip_reset() is one
> > example.  In practice, the code in ncr53c8xx.c tries to call its local
> > ncr_chip_reset(), but ends up in the ncr_chip_reset() function in
> > sym53c8xx.c.
> > 
> > It appeared to work fine with 2.3.99pre8, and I havn't changed my
> > cross compiler.
> 
> I'm not seeing this problem here, at least, not based on an
> examination of the kernel's object code.
> 
> In mine I have:
> 
> sym53c8xx: ncr_chip_reset = c01cdec0 (a4)
>            ncr_attach     = c02a37e4 (934)
> ncr53c8xx: ncr_chip_reset = c01cdf80 (e8)
>            ncr_attach     = c02a6ff0 (5d8)

I have:

sym53c8xx: c01c4800 t ncr_chip_reset
           c029b964 ? ncr_attach
ncr53c8xx: c01c48c0 t ncr_chip_reset
           c029f130 ? ncr_attach

> Where ncr_attach calls ncr_chip_reset, it looks like:
> 
>     1d34:	0e b3 12 80 	stw  r19,0(sr0,r21)
>     1d38:	08 03 02 5a 	copy r3,r26
>     1d3c:	e8 40 00 00 	b,l 1d44 <ncr_attach+0x354>,rp
> 			1d3c: R_PARISC_PCREL17F	ncr_chip_reset
> 
> And in the object file, we have:
> 
> c02a7334:       0e b3 12 80     stw  r19,0(sr0,r21)
> c02a7338:       08 03 02 5a     copy r3,r26
> c02a733c:       e8 58 12 fd     b,l c0298cc0 <__init_begin+0xcc0>,rp

I have

c029f484:       08 03 02 5a     copy r3,r26
c029f488:       e8 58 04 d5     b,l c02906f8 <__init_begin+0x6f8>,rp

> 
> Pointing at this stub:
> 
> c0298cc0:       20 26 f8 03     ldil -3fe32800,r1
> c0298cc4:       e0 20 2f 02     be,n 780(sr4,r1)

Mine is

c02906f8:       20 22 d8 03     ldil -3fe3b800,r1
c02906fc:       e0 20 20 02     be,n 0(sr4,r1)


> 0x780 - 0x3fe32800 = 0xc01cdf80, which is the right one.

0 - 0x3fe3b800 = 0xc01c4800, which is the WRONG one

> This is with today's binutils.

This is with xc-20000802

For completeness, in sym53c8xx.c version of ncr_attach() I see

c029c010:       68 74 13 80     stw r20,9c0(sr0,r3)
c029c014:       e8 5a 0d b9     b,l c02906f8 <__init_begin+0x6f8>,rp

Which points at the same stub.

Guess I need a new binutils.

Thanks for your help,

Richard


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: Incompatibility of PIC and non-PIC
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David Huggins-Daines <dhd@linuxcare.com> writes:

> Quite well, once I did this:

Oh, that patch was obviously bogus.  Sorry.  The real bogosity is
setting elf.plt.offset to -1 in order to prevent finish_dynamic_symbol
from filling in the PLT entry, which, aside from overwriting (part of)
the first PLT entry with the target for the last import stub, also
causes these stubs themselves to contain references to PLT - 1 (these
immediately cause SIGBUS at the moment, which is probably a good
thing).

This is doubly strange because finish_dynamic_symbol has a check for
h->pic_call in it already :-)

I've hacked around it for my own purposes but I imagine you know best
what to do.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Subject: Re: Incompatibility of PIC and non-PIC
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On 21 Aug 2000, David Huggins-Daines wrote:

> The real bogosity is
> setting elf.plt.offset to -1 in order to prevent finish_dynamic_symbol
> from filling in the PLT entry, which, aside from overwriting (part of)
> the first PLT entry with the target for the last import stub, also
> causes these stubs themselves to contain references to PLT - 1 (these
> immediately cause SIGBUS at the moment, which is probably a good
> thing).
> 
> This is doubly strange because finish_dynamic_symbol has a check for
> h->pic_call in it already :-)

I think just deleting these lines (which predated the check in
finish_dynamic_symbol) in build_one_stub

	  /* Flag this .plt entry as having been filled in so that
	     finish_dynamic_symbol doesn't repeat our work here.  */
	  eh->elf.plt.offset = (bfd_vma) -1;

will do the trick.  I simply forgot to remove it after fixing
finish_dynamic_symbol to genereate correct .plt entries for the
cases where we don't have a dynamic relocation.

The problem is that you get one stub per input section to ensure that the
stub can be reached.  Messing with plt.offset on the first stub has dire
consequences for subsequent ones.

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.4.0-test6 lack of speed
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I put some printk's in pgalloc.h:

__flush_dcache_range: addr 0xc7e23000, size 4096
__flush_icache_range: addr 0xc7e23000, size 4096
__flush_icache_range: addr 0xc7e23000, size 4096
__flush_dcache_range: addr 0xc7da5000, size 4096
__flush_icache_range: addr 0xc7da5000, size 4096
__flush_dcache_range: addr 0x000bdc8c, size 4096
__flush_icache_range: addr 0x000bdc8c, size 4096
__flush_dcache_range: addr 0x40000000, size 4096
__flush_icache_range: addr 0x40000000, size 4096
__flush_dcache_range: addr 0xc7dc8000, size 4096
__flush_icache_range: addr 0xc7dc8000, size 4096
__flush_dcache_range: addr 0xc7dc8000, size 4096
__flush_icache_range: addr 0xc7dc8000, size 4096
__flush_icache_range: addr 0xc7dc8000, size 4096
__flush_dcache_range: addr 0x00001000, size 770048
__flush_icache_range: addr 0x00001000, size 770048
__flush_dcache_range: addr 0x000bd000, size 24576
__flush_icache_range: addr 0x000bd000, size 24576
__flush_dcache_range: addr 0x000c3000, size 102400
__flush_icache_range: addr 0x000c3000, size 102400
__flush_dcache_range: addr 0x2001f000, size 268308480
__flush_icache_range: addr 0x2001f000, size 268308480
__flush_dcache_range: addr 0x40100000, size 32768
__flush_icache_range: addr 0x40100000, size 32768
__flush_dcache_range: addr 0x40108000, size 1015808
__flush_icache_range: addr 0x40108000, size 1015808
__flush_dcache_range: addr 0x20022fac, size 4096
__flush_icache_range: addr 0x20022fac, size 4096
__flush_dcache_range: addr 0x00003594, size 2
__flush_dcache_range: addr 0xc7f986c8, size 2
> __flush_dcache_range: addr 0x2002300c, size 4096
__flush_icache_range: addr 0x2002300c, size 4096


Those two flushes of 268 Meg each take a while to run.
There also appears to be a mix of virtual and physical addresses being
passed to __flush_[id]cache_range(), which must be wrong.  I believe they
should be passed virtual addresses.

pgtable.h is interesting as well:

/*
 * cache_push() semantics: Write back any dirty cache data in the given area,
 * and invalidate the range in the instruction cache. It needs not (but may)
 * invalidate those entries also in the data cache. The range is defined by a
 * _physical_ address.
 */
#define cache_push(paddr, len) \
                        flush_cache_range(&init_mm, virt_to_phys(paddr), len)
#define cache_push_v(vaddr, len) \
                        flush_cache_range(&init_mm, vaddr, len)


I guess that virt_to_phys() should be a phys_to_virt()....


Richard


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Bob Pflederer wrote:
> 
> > OK, I'm convinced.  I've changed unistd.h to use 0xC0000404 (on the next
> > page) for the syscall gateway, although we can easily change it back.
> 
> Isn't the next page at 0xc0001000?  Or does linux have some concept of
> 1k "pages" even though pages in the TLB are 4k?

Brain-o.  0xC0001004 it is.

While we're on the topic, though: why 0xC0000004 and not 0xC0000000 as
the target address?  (Although there are other bugs, like ``ldo 5,%r22''
instead of ``ldi 5,%r22'' in the Assembler Ref as well, so maybe this is
another?)

Mike

-- 
92501.80 83731.86


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Subject: Re: [parisc-linux] 2.4.0-test6 lack of speed
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On Tue, Aug 22, 2000 at 03:38:03PM +0100, Richard Hirst wrote:
> I put some printk's in pgalloc.h:
> 
> __flush_dcache_range: addr 0xc7e23000, size 4096
> __flush_icache_range: addr 0xc7e23000, size 4096
> __flush_icache_range: addr 0xc7e23000, size 4096
> __flush_dcache_range: addr 0xc7da5000, size 4096
> __flush_icache_range: addr 0xc7da5000, size 4096
> __flush_dcache_range: addr 0x000bdc8c, size 4096
> __flush_icache_range: addr 0x000bdc8c, size 4096
> __flush_dcache_range: addr 0x40000000, size 4096
> __flush_icache_range: addr 0x40000000, size 4096
> __flush_dcache_range: addr 0xc7dc8000, size 4096
> __flush_icache_range: addr 0xc7dc8000, size 4096
> __flush_dcache_range: addr 0xc7dc8000, size 4096
> __flush_icache_range: addr 0xc7dc8000, size 4096
> __flush_icache_range: addr 0xc7dc8000, size 4096
> __flush_dcache_range: addr 0x00001000, size 770048
> __flush_icache_range: addr 0x00001000, size 770048
> __flush_dcache_range: addr 0x000bd000, size 24576
> __flush_icache_range: addr 0x000bd000, size 24576
> __flush_dcache_range: addr 0x000c3000, size 102400
> __flush_icache_range: addr 0x000c3000, size 102400
> __flush_dcache_range: addr 0x2001f000, size 268308480
> __flush_icache_range: addr 0x2001f000, size 268308480
> __flush_dcache_range: addr 0x40100000, size 32768
> __flush_icache_range: addr 0x40100000, size 32768
> __flush_dcache_range: addr 0x40108000, size 1015808
> __flush_icache_range: addr 0x40108000, size 1015808
> __flush_dcache_range: addr 0x20022fac, size 4096
> __flush_icache_range: addr 0x20022fac, size 4096
> __flush_dcache_range: addr 0x00003594, size 2
> __flush_dcache_range: addr 0xc7f986c8, size 2
> > __flush_dcache_range: addr 0x2002300c, size 4096
> __flush_icache_range: addr 0x2002300c, size 4096
> 
> 
> Those two flushes of 268 Meg each take a while to run.
> There also appears to be a mix of virtual and physical addresses being
> passed to __flush_[id]cache_range(), which must be wrong.  I believe they
> should be passed virtual addresses.
> 
> pgtable.h is interesting as well:
> 
> /*
>  * cache_push() semantics: Write back any dirty cache data in the given area,
>  * and invalidate the range in the instruction cache. It needs not (but may)
>  * invalidate those entries also in the data cache. The range is defined by a
>  * _physical_ address.
>  */
> #define cache_push(paddr, len) \
>                         flush_cache_range(&init_mm, virt_to_phys(paddr), len)
> #define cache_push_v(vaddr, len) \
>                         flush_cache_range(&init_mm, vaddr, len)
> 
> 
> I guess that virt_to_phys() should be a phys_to_virt()....

And also, flush_cache_range() is defined in pgalloc.h as taking start and
end, not start and length.

Richard


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On Tue, Aug 22, 2000 at 03:52:21PM +0100, Richard Hirst wrote:
> > __flush_dcache_range: addr 0x00001000, size 770048
> > __flush_icache_range: addr 0x00001000, size 770048
> > __flush_dcache_range: addr 0x000bd000, size 24576
> > __flush_icache_range: addr 0x000bd000, size 24576
> > __flush_dcache_range: addr 0x000c3000, size 102400
> > __flush_icache_range: addr 0x000c3000, size 102400
> > __flush_dcache_range: addr 0x2001f000, size 268308480
> > __flush_icache_range: addr 0x2001f000, size 268308480

Those ones are caused by a call to flush_page_range() being added to
mm/mmap.c:exit_mmap().

We just blindly assume addresses passed to flush_page_range() are
kernel virtual addresses, but in this case I guess they are user
process virtual addresses.  Even so, the last one below looks
like a rather large area to have mmapped.

exit_mmap: calling flush_cache_range(0x00001000, 0x00083000)
exit_mmap: calling flush_cache_range(0x00083000, 0x00085000)
exit_mmap: calling flush_cache_range(0x00085000, 0x00088000)
exit_mmap: calling flush_cache_range(0x2001f000, 0x30000000)

(the exit_mmap debug is from a different kernel build, so don't
try and match the numbers with those quoted above)

Richard


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: [parisc-linux] glibc merge coming through
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Just to let you all know,

Due to some "upstream" bugs in the dynamic linker code in the our
current CVS tree, I've decided to update our tree from the current
mainline CVS from sourceware.cygnus.com.

The old stuff will be tagged with 'before20000822merge'.

Expect this to land in a half hour or so.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Richard Hirst <rhirst@linuxcare.com> writes:

> We just blindly assume addresses passed to flush_page_range() are
> kernel virtual addresses, but in this case I guess they are user
> process virtual addresses.

Right.  I noticed that the FIC/FICE/FDC/FDCE instructions have a space
register field.  I wonder if we should be explicitly specifying %sr3,
since that's what we use (ahem, what we *WOULD* use if <asm/uaccess.h>
were actually implemented) to access user space.

Are PA-RISC caches indexed with the space ID as well as the offset?
Do we need to flush kernel virtual addresses at all?

> exit_mmap: calling flush_cache_range(0x00001000, 0x00083000)

text

> exit_mmap: calling flush_cache_range(0x00083000, 0x00085000)

data and bss

> exit_mmap: calling flush_cache_range(0x00085000, 0x00088000)

heap

> exit_mmap: calling flush_cache_range(0x2001f000, 0x30000000)

stack

>  Even so, the last one below looks like a rather large area to have
> mmapped.

Yes, it's arbitrarily huge, and this is a VM problem that needs to be
fixed.  It should grow upwards as needed via the page fault handler.
Paging John Marvin... (pun intended ;-)

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Subject: [parisc-linux] glibc merge done
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David Huggins-Daines <dhd@linuxcare.com> writes:

> Expect this to land in a half hour or so.

It should be done now.  Statically linked stuff appears to still work,
at least, as does building libc.so.

You should probably make clean and reconfigure in order to pick up the
new files.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Hi,

I've merged today's sourceware CVS tree into our gcc tree.  The
pre-merge stuff is tagged 'before20000822merge'.  It builds a working
kernel for me, but let me know if it breaks any other stuff.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Subject: [parisc-linux] GCC merge complete
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As the subject says.

You will probably need to add --disable-threads to your configure
command if you are building C++ support.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: tor@spacetec.no (Tor Arntsen)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Incompatibility of PIC and non-PIC
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In-Reply-To: Alan Modra <alan@linuxcare.com.au>
       "Re: Incompatibility of PIC and non-PIC" (Aug 20,  5:21)
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On Aug 20,  5:21, Alan Modra wrote:
>On Sat, 19 Aug 2000, Matthew Wilcox wrote:
>
>> btw, is there any option to cvs diff which produces files which can be
>> applied by any known version of patch?  in my experience, patch can't
>> find files specified by Index: lines _unless_ both the +++ and the ---
>> files can't be found -- which is rarely the case with common names such
>> as Makefile or ChangeLog.
>
>I haven't found one, and it's a real pain.  I tend to edit patches
>covering multiple directories before passing them to patch.
>
>"sed -e '/^[+-][+-]/d' < cvs_diff_file | patch -p0 --posix" ought to work.
>
>Alan

Which versions of CVS are you using?  CVS used to output diffs without
including the directory path in the --- and +++ lines, but that's been
fixed long ago.  I don't have any problems with patch anymore.

-Tor


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On Wed, 23 Aug 2000, Tor Arntsen wrote:

> Which versions of CVS are you using?  CVS used to output diffs without
> including the directory path in the --- and +++ lines, but that's been
> fixed long ago.  I don't have any problems with patch anymore.

You will if the diff contains files that exist in the root dir of your
source tree and in subdirs, eg. Makefile.in and bfd/Makefile.in

-- 
Linuxcare.  Support for the Revolution.


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       "Re: Incompatibility of PIC and non-PIC" (Aug 23, 10:49)
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On Aug 23, 10:49, Alan Modra wrote:
>On Wed, 23 Aug 2000, Tor Arntsen wrote:
>
>> Which versions of CVS are you using?  CVS used to output diffs without
>> including the directory path in the --- and +++ lines, but that's been
>> fixed long ago.  I don't have any problems with patch anymore.
>
>You will if the diff contains files that exist in the root dir of your
>source tree and in subdirs, eg. Makefile.in and bfd/Makefile.in

No, I do that all the time and has been doing that for almost two years
without problems.  It's true that it used to be a problem.  This is what
I'm working with at this moment:

cvs -q -n upd
M ChangeLog
M tools/ChangeLog
M tools/ts-initdir.c

cvs -q diff -u > dif

The diff looks like this:

Index: ChangeLog
===================================================================
RCS file: /cvs/cvs4/lrdpf/src/libs/lib_lrdpf_table/ChangeLog,v
retrieving revision 1.1.4.2.6.5
diff -u -r1.1.4.2.6.5 ChangeLog
--- ChangeLog   2000/04/01 16:54:01     1.1.4.2.6.5
+++ ChangeLog   2000/08/23 09:57:10
@@ -1,3 +1,73 @@
+Wed Aug 23 00:01:15 2000  tor@deneb.spacetec.no  (Tor Arntsen)
+
+       * TODO: Updated.
+
..
Index: tools/ChangeLog
===================================================================
RCS file: /cvs/cvs4/lrdpf/src/libs/lib_lrdpf_table/tools/Attic/ChangeLog,v
retrieving revision 1.1.2.1.6.2
diff -u -r1.1.2.1.6.2 ChangeLog
--- tools/ChangeLog     1999/05/25 10:54:39     1.1.2.1.6.2
+++ tools/ChangeLog     2000/08/23 09:57:10
@@ -1,3 +1,16 @@
+Wed Aug 23 00:33:48 2000  tor@deneb.spacetec.no  (Tor Arntsen)
+
+       * ts-initdir.c: Removed local copied functions get_table_dir() and
..

I now use that diff as input to patch somewhere else:
patch -p0 < dif
patching file ChangeLog
patching file tools/ChangeLog
patching file tools/ts-initdir.c

The patch is correctly applied.

The problem with older CVS versions was that it used to say just
--- ChangeLog on all the levels.  Patch could handle that, using
the Index line, however only for unique file names.  So people would
use scripts that fixed the ---/+++ lines before they applied the patch.

-Tor


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From: Kumar <kumar@ix.netcom.com>
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Subject: Re: [hppa-linux] syscall work
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On Thu, 25 Mar 1999, Mike Shaver wrote:

> While we're on the topic, though: why 0xC0000004 and not 0xC0000000 as
> the target address?  (Although there are other bugs, like ``ldo 5,%r22''
> instead of ``ldi 5,%r22'' in the Assembler Ref as well, so maybe this is
> another?)

It does not matter as long as the gateway instruction is on the "special"
page. Probably one wants to put a nop before the gateway instruction.

-pkd


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: [parisc-linux] hppa .reg
Date: Wed, 23 Aug 2000 20:41:02 +1000 (EST)
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        Jeffrey A Law <law@cygnus.com>
To: binutils@sourceware.cygnus.com
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Hi,
   I've just spent a bit of time modifying tc-hppa.c:pa_parse_number and
sundry places where it's called to allow: 

pte: .reg %r16
 depd    pte,31,32,pte

Previously, gas would barf on lack of a `%' followed by one of the
predefined regs for any FLAG_STRICT insn like the above `depd'.

All well and good, but my patch puts these register alias symbols into
reg_section, the natural place for them to go, and this happens to kill
one of the hppa tests.  gas/testsuite/gas/hppa/parse/regpopbug.s is like
this:
 --------
        .code

r0:     .reg    %r0
shift:  .reg    %sar
fpreg10: .reg   %fr10
shift2: .reg    shift

; Make sure we didn't botch .equ...
yabba:  .equ    r0 + shift
 ---------

and adding two register symbols ain't an absolute expression for the
`.equ', so I've "botched .equ"

Now the question is, does adding two reg symbols make sense (it doesn't 
to me), or is this particular case a backwards compatibility issue?  Can 
someone tell me what the current hp assembler does with the above test?

Regards, Alan Modra
-- 
Linuxcare.  Support for the Revolution.




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: Incompatibility of PIC and non-PIC
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On Wed, 23 Aug 2000, Tor Arntsen wrote:

> The problem with older CVS versions was that it used to say just
> --- ChangeLog on all the levels.  Patch could handle that, using
> the Index line, however only for unique file names.  So people would
> use scripts that fixed the ---/+++ lines before they applied the patch.

Ah Ha!  So an update of puffin cvs would be a good idea.  Provided said
update didn't trash all the old repositories...

-- 
Linuxcare.  Support for the Revolution.


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From: tor@spacetec.no (Tor Arntsen)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Incompatibility of PIC and non-PIC
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Xref: news.gmane.org gmane.linux.ports.parisc:7773

On Aug 23, 11:47, Alan Modra wrote:
>Ah Ha!  So an update of puffin cvs would be a good idea.  Provided said
>update didn't trash all the old repositories...

Recommended.  I'm using version 1.10.8.1 on both servers and clients
and before that I went through 1.10.6.1 and 1.10.[2-4], I believe the 
problem was fixed in one of the early 1.10.x versions.  No problems with 
the repositories, the upgrades were transparent for the users.  
Older 1.10 clients also work ok with the latest server versions, although 
I've never used the actual 1.10 -- it had its own problems that were fixed 
in 1.10.1 or .2 or so.  I'm not sure what the latest version is called but
I can recommend 1.10.8.1.  It has a few obscure bugs that most of us will
not run in to and it's as good as or better than any version before it.
And it makes good diffs :-)

-Tor
(I maintain the CVS repositories at the site where I work)


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Incompatibility of PIC and non-PIC
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On Wed, Aug 23, 2000 at 01:26:55PM +0200, Tor Arntsen wrote:
> On Aug 23, 11:47, Alan Modra wrote:
> >Ah Ha!  So an update of puffin cvs would be a good idea.  Provided said
> >update didn't trash all the old repositories...
> 
> Recommended.  I'm using version 1.10.8.1 on both servers and clients

we currently have 1.10.2 on pehc.  i believe matt taggart plans to
upgrade pehc later this week.

-- 
Revolutions do not require corporate support.


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: U2/Uturn stuff.
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Matthew Hudson wrote:
> Grant Grundler wrote:
> > Non-functional since U2/Uturn code is not ready yet (I'm working on it)
> > and not documented (let's not go there again right now). And even
> > if it were ready, I need to hack in some sort of an "I/O tree"
> > in order to support more than one U2/Uturn. K-class can have
> > multiple U2/Uturns.
> 
> I've looked over the ccio-dma.c code and nothing jumps out at me
> codewise. Can you point me to any information about the IOA
> chips?

Unfortunately not. If it's not clear from the code, point me
at the specific chunk of code you don't understand and I'll
add comments to make it clearer.

> Also, do you have an inkling of an idea where the problem
> might be? I'll take a crack at it and see if I can do anything,
> no promises. :-)

Bob Pflederer has it working and I committed his one line fix
to ccio-dma.c yesterday.  I haven't tested it as my C200 is being
shipped to someone else now.

Changes to lasi LAN (82596?) and cache flushing code are also
needed to make the system usable.

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] 2.4.0-test6 lack of speed
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On Tue, Aug 22, 2000 at 12:05:06PM -0400, David Huggins-Daines wrote:
> Richard Hirst <rhirst@linuxcare.com> writes:
> 
> > We just blindly assume addresses passed to flush_page_range() are
> > kernel virtual addresses, but in this case I guess they are user
> > process virtual addresses.
> 
> Right.  I noticed that the FIC/FICE/FDC/FDCE instructions have a space
> register field.  I wonder if we should be explicitly specifying %sr3,
> since that's what we use (ahem, what we *WOULD* use if <asm/uaccess.h>
> were actually implemented) to access user space.
> 
> Are PA-RISC caches indexed with the space ID as well as the offset?
> Do we need to flush kernel virtual addresses at all?

I should have said flush_cache_range() above, not flush_page_range().

It looks to me like all calls to flush_cache_range() are passed a user
virtual address, except for those calls from arch/parisc/kernel/pci-dma.c
where we pass kernel virtual addresses.

So perhaps flush_cache_range() should generate FIC/FICE/FDC/FDCE
instructions with a space register of %sr3, and pci-dma.c should
use some other method of flushing memory.

I was looking at the difference between FDC and FDCE; it seems FDC
does address translation and FDCE does not, so should we use FDC
really?  flush_cache_range() currently uses FDCE/FICE.

Helge Deller wrote some code in drivers/net/lasi_82596.c that plays
with %sr1 and uses FDC, FIC, PDC, SYNC, and SYNCDMA.

Can someone tell me why include/asm/cache.h has no space register
specified on fdce():

> #define fdce(addr) asm volatile("fdce 0(%0)" : : "r" (addr))
> #define fice(addr) asm volatile("fice 0(%%sr1,%0)" : : "r" (addr))
> 
> #define pdtlbe(addr) asm volatile("pdtlbe 0(%%sr1,%0)" : : "r" (addr))
> #define pitlbe(addr) asm volatile("pitlbe 0(%%sr1,%0)" : : "r" (addr))


Richard

ps. as you can see, I am learning as I go here, so all hints and
clues are gratefully accepted!


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jsm explained to me that the F?CE and P?TLBE instructions should
only be used "for flushing the entire data or combined cache".
The operands of F?CE/P?TLBE are "an implementation-dependent function
of the effective address", essentially an opaque data type that
varies per processor.  The operand of F?C/P?TLB is a virtual address,
so is the right thing to use for flushing a range of addresses.

	-P


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From: Andrew Park <apark@cdf.toronto.edu>
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Subject: [parisc-linux] disk required?
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Hi,

Just wondering...  Is there a disk space requirement for booting from
network (NFSROOT)?  Or could I do it without a disk?
Thanks


Andrew Park


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Andrew Park said:
> Hi,
> 
> Just wondering...  Is there a disk space requirement for booting from
> network (NFSROOT)?  Or could I do it without a disk?
> Thanks
> 
> Andrew Park

There isn't any requirement for locally attached devices to have
readable filesystems if you can boot and nfs-root from the network.

The local disks in my HP hold HP/UX on them, I just network boot to test
Linux kernels.  This is essentially the same thing as having no disk at
all as far as Linux is concerned.  =)

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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On Thu, 24 Aug 2000, Andrew Shugg wrote:

> There isn't any requirement for locally attached devices to have
> readable filesystems if you can boot and nfs-root from the network.
> 
> The local disks in my HP hold HP/UX on them, I just network boot to test
> Linux kernels.  This is essentially the same thing as having no disk at
> all as far as Linux is concerned.  =)

Thanks for the reply.
I asked that because I wanted to narrow down the possibility of my
machine's inability to boot from the net.  It gets to a part where it says

	pdc_cons die !!

then it stops.  On the server, tftp log says "Connection Refused", but
the funny thing is that the client refused the connection.  I traced
the code where it printed "connection refused" and verified that the
server actually sent some data (do not know which file) and tried to
receive acknowledgement for it and failed to get any.
Do you have any ideas?
Thanks


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------


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From: Alex deVries <adevries@redhat.com>
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Subject: [hppa-linux] Linker scripts and the boot loader
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Okay.  How does the boot loader work with loading the kernel?  I recall
Jason saying something about the boot loader knowing how to load binaries.

What do we need from the kernel to get the boot loader to load some sort
of kernel?

Why do we need a custom linking in the first place?

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Switch to serial console ( was Re: [parisc-linux] disk required? )
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Andrew Park writes...

> Thanks for the reply.
> I asked that because I wanted to narrow down the possibility of my
> machine's inability to boot from the net.  It gets to a part where it says
> 
> 	pdc_cons die !!
> 
> then it stops.  On the server, tftp log says "Connection Refused", but
> the funny thing is that the client refused the connection.  I traced
> the code where it printed "connection refused" and verified that the
> server actually sent some data (do not know which file) and tried to
> receive acknowledgement for it and failed to get any.
> Do you have any ideas?

This is the point where the kernel switches over to serial console. The 
machine is still running, just attach a serial console or use minicom or 
something.

Unfortunately this is quickly becoming a FAQ. I wish we had documented it in 
the CD README. It doesn't help that the last message you see is "pdc_cons die".

-- 
Matt Taggart
taggart@fc.hp.com



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Newsgroups: gmane.linux.ports.parisc
Subject: Re: Switch to serial console ( was Re: [parisc-linux] disk required?
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On Wed, 23 Aug 2000, Matt Taggart wrote:

> This is the point where the kernel switches over to serial console. The 
> machine is still running, just attach a serial console or use minicom or 
> something.
> 
> Unfortunately this is quickly becoming a FAQ. I wish we had documented it in 
> the CD README. It doesn't help that the last message you see is "pdc_cons die".


hmmm....  I found the following quote from

http://www.oswg.org/oswg-nightly/oswg/en_US.ISO_8859-1/articles/parisc-linux/parisc-linux-boot.html#CONSOLES

<quote>
3.1.2.3.3. How can I change the boot console to serial on a 712?

  Unfortunately, you can't. Although 712s are configured for in-house
       HP development to use serial console, this configuration isn't
  supported in the field. You have to use a graphics console for 712s.
</quote>

I have 712/80 (sorry, I should have mentioned earlier).  Would I still
be able to use a serial console despite what the documentation says?
Thanks


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------



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Howdy Andrew,

FWIW, see:

   http://puffin.external.hp.com/mailing-lists/parisc-linux/1999/12-Dec/0091.html

I was able to get my 712/60's console to the serial port using the steps
there...

jack
j-perdue@tamu.edu


At 03:05 PM 08/23/2000 -0400, you wrote:
>On Wed, 23 Aug 2000, Matt Taggart wrote:
>
> > This is the point where the kernel switches over to serial console. The
> > machine is still running, just attach a serial console or use minicom or
> > something.
> >
> > Unfortunately this is quickly becoming a FAQ. I wish we had documented 
> it in
> > the CD README. It doesn't help that the last message you see is 
> "pdc_cons die".
>
>
>hmmm....  I found the following quote from
>
>http://www.oswg.org/oswg-nightly/oswg/en_US.ISO_8859-1/articles/parisc-linux/parisc-linux-boot.html#CONSOLES
>
><quote>
>3.1.2.3.3. How can I change the boot console to serial on a 712?
>
>   Unfortunately, you can't. Although 712s are configured for in-house
>        HP development to use serial console, this configuration isn't
>   supported in the field. You have to use a graphics console for 712s.
></quote>
>
>I have 712/80 (sorry, I should have mentioned earlier).  Would I still
>be able to use a serial console despite what the documentation says?
>Thanks
>
>
>Andrew Park
>
>________________________________________________________________________
>CDFlab Systems Administrator                       www.cdf.utoronto.ca |
>GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
>------------------------------------------------------------------------
>
>
>---------------------------------------------------------------------------
>To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.



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On Wed, Aug 23, 2000 at 02:02:07PM -0400, Andrew Park wrote:
> I asked that because I wanted to narrow down the possibility of my
> machine's inability to boot from the net.  It gets to a part where it says
> 
> 	pdc_cons die !!

this is rapidly becoming a FAQ... maybe I should add it to the FAQ page
(do you all promise to look at it if I do?)

...

there you go:

6.I'm using the Alpha 0.1 release CD and the machine stops after printing
  pdc_cons die !!
what's going on? 

The kernel on the CD is set up for serial port console. If you attach a
serial cable to the back of your machine then you should see messages
appearing on that console instead. You should be able to replace this
kernel with one which uses the STI console instead.

-- 
Revolutions do not require corporate support.


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Xref: news.gmane.org gmane.linux.ports.parisc:7786

On Wed, Aug 23, 2000 at 09:06:51AM -0700, Grant Grundler wrote:
> Changes to lasi LAN (82596?) and cache flushing code are also
> needed to make the system usable.

The lasi_82596.c changes are now committed.

Richard


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On Wed, Aug 23, 2000 at 10:38:13AM -0600, Paul Bame wrote:
> 
> jsm explained to me that the F?CE and P?TLBE instructions should
> only be used "for flushing the entire data or combined cache".
> The operands of F?CE/P?TLBE are "an implementation-dependent function
> of the effective address", essentially an opaque data type that
> varies per processor.  The operand of F?C/P?TLB is a virtual address,
> so is the right thing to use for flushing a range of addresses.

OK, thanks.  We use F?CE/P?TLBE in cache.h atm.

Richard


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You people wanna give a guy a chance to learn the architecture?
:-)

-Matt
(Maybe I'll eventually get a chance to actually write some
code before someone else does it first. :-)

Richard Hirst wrote:
> 
> On Wed, Aug 23, 2000 at 09:06:51AM -0700, Grant Grundler wrote:
> > Changes to lasi LAN (82596?) and cache flushing code are also
> > needed to make the system usable.
> 
> The lasi_82596.c changes are now committed.


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On Thu, Aug 24, 2000 at 02:56:04AM -0600, Richard Hirst wrote:
> Log message:
> Changed to use pci_alloc_consistent, pci_map_single, etc. using patches
> from Bob Pflederer.  Handles systems with and without consistent memory,
> based on whether or not pci_alloc_consistent() fails.

> pci_alloc_consistent() always succeeds atm, so I have patched the driver
> to fall back to dma_cache_wback/inv regardless.

that's no longer the case since Tuesday :-)

pci_alloc_consistent will now fail on PCX-S and PCX-T machines.  PCX-L
and PCX-L2 machines set the hppa_dma_ops to succeed (use Uncacheable
pages) and PCX-T', PCX-U and upwards all have IOMMUs that will set the
hppa_dma_ops to something appropriate.

i'm sure that the tables in the kernel for mapping from hversion to cpu
type are currently broken.  i'm going to fix that today (now that i have
the tables we're currently using in the hwdb).

-- 
Revolutions do not require corporate support.


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Subject: [parisc-linux] [torvalds@transmeta.com: linux-2.4.0-test7]
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Linus has actually started keeping alan-style changelogs.  so i'm going
to forward them here.

btw, what do people think about just pushing the current parisc-specific
pieces to Linus right now?  i know the kernel doesn't work terribly
well right now and we're going to want to change it a lot, but it would
ensure that people who go around changing all the architectures update
our stuff at the same time.

----- Forwarded message from Linus Torvalds <torvalds@transmeta.com> -----

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Date: 	Wed, 23 Aug 2000 19:55:28 -0700 (PDT)
From: Linus Torvalds <torvalds@transmeta.com>
To: Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: linux-2.4.0-test7
Precedence: bulk
X-Mailing-List: 	linux-kernel@vger.kernel.org


test7:
 - pre1:
    - fix PCI resource bug that crept in in test6 due to the new
      requirements to handle multiple bus regions transparently
    - ll_rw_block documentation
    - sound driver module counting bugfix and cleanup (move to named
      initializers)
    - directory rename bug fix for busy directories (oops)
    - allow "init_new_context()" to fail - it can do so on some
      architectures when out of memory.
    - networking updates - TCP retransmission and ordering logic
    - fix strsep(). Not that anybody cared.
 - pre2:
    - fix modversions.h generation ("make -j dep" works now)
    - finish 64-bit VFS: getdents64 and fcntl64 (getdents64 also adds
      the "file type" to the readdir data - VFS layer change.  fcntl64
      allows 64-bit file locking)
    - Intel i810 watchdog driver and NS DP83810 network driver
    - dup2() cannot screw up the file table with threads any more.
 - pre3:
    - nfs_commit_rpcsetup() signed comparison bugfix and cleanup
    - sparc updates and TLB invalidation fix
    - networking updates (less verbose on the new reordering messages)
    - network driver Makefile cleanup
    - Fix segment copy on fork.
    - tsk->files race fixes: close-on-exec etc.
    - sound #define cleanups
    - fs/proc/array.c task_lock cleanup
 - pre4:
    - "USE_STANDARD_AS_RULE" - generic Rules.make as rule
    - arm update (arch/arm, asm-arm, drivers/acorn, Documentation/arm etc)
    - eicon ISDN driver update (big).
    - serial.c warnings removal.
    - compilation fixes under different configurations..
    - bounds checking for hpfs code page index.
    - sparc64 bugfix for atomic_dec_and_lock. Oops. And use flock64.
    - FAT missed the d_type thing from readdir.
    - fix tsk->files race fixes from -pre3 ("struct files_struct", not
      "struct file" and make sure to register the socket fs before we
      use a pointer to it)
    - ns558.c: don't leave the driver registered after a failed module
      load.  Either return success, or unregister the PCI driver. And
      don't leak IO port allocations.
    - USB OHCI controller fixes for oopses due to races..
    - usb updates
    - 3c59x driver update
    - VIA KX-133/KT-133 chipset detection and AGP bridge support
    - raid/raw-io cleanup: use generic_make_request instead of ll_rw_block.
    - Emu10k1 sound driver update
 - pre5
    - i2c-old compile fix. 
    - sparc updates (pte_pagenr cleanups)
    - make ipv6 loadable as a module together with CONFIG_INET_ECN
    - get rid of bdf_prm.b_un.age_super - it just confused the buffer aging
    - smbfs knows about nls and ascii mount options
    - small joystick driver updates
    - make sure to mark inode dirty after having changed the size!
    - hgafb documentation update
 - pre6
    - Pentium/MMX has a good IO-APIC
    - APIC detection (aka "try to boot the SMP kernel even on buggy UP
      boards that claim SMP.")
    - alpha time.c epoch calculations. Again.
    - report where the memory region information came from.
    - sparc updates
    - file locking: fix deadlock detection and EOVERFLOW
    - network bugfixes
    - md readahead was getting confused about bytes vs pages
    - DRM and AGP fixes
    - xircom_tulip.c: don't corrupt the timer list on suspend
    - PCI /proc interface buffer overrun fix
    - ISDN updates
    - DAC960 update
    - fork: get CLONE_PTRACE right (SIGSTOP the child)
 - pre7
    - block_all_signals()/unblock_all_signals() interface to allow drivers to
      react nicely to signals that happen to a process that owns driver data.
      Read: direct rendering lock handling.
    - ThunderLAN update (timer fixes, full-duplex, activity-led)
    - Fix NFS oops on removing negative dentry. Honour rsize for directory read.
    - usb updates
    - scheduler wakeup race fix.
    - move radio/tv cards to drivers/media, cleaning up drivers/char
    - move "input" layer to drivers/input, cleaning up drivers/usb
    - Cirrus SoundFusion CS4280/461x sound driver.
    - proper camera locking in usb/dc2xx.c
    - USB printer driver update (Printer Protocol 3 and timeout handling)
 - final
    - usbkbd.c syntax error fix. USB config messages change. pegasus update
    - digiboard driver update. Yes, people, it's still being used.
    - make elvtune not break any more now that "maxbomb" isn't used.
    - sparc updates
    - tunneling driver, aka "ethertap done right".
    - pcmcia/cs.c: only call the reset handle if valid.
    - net/sunrpc/sched.c: fix two rpc_wait_queue hangups
    - AMD Duron cpuid errata forward port
    - get_close_on_exec() only needs the read lock, not write lock
    - get rid of unnecessary kernel lock in fork()
    - MCA planar POS-register /proc support
    - drivers/media configuration fixup (menuconfig is happy again)


From - Thu Nov 08 21:13:15 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] dpkg and dpkg-dev binary and source tarballs for hppa-linux
Date: 24 Aug 2000 11:42:03 -0400
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Hi,

I've got CVS dpkg cross-compiled for PA-RISC.  Have at it:

ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/dpkg-20000824.tar.gz
ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/dpkg-dev-20000824.tar.gz

A tarball of the source is at:

ftp://puffin.external.hp.com/pub/parisc/src/dpkg-src-20000824.tar.gz

We don't have Perl yet (working on that today, maybe, if the kernel
doesn't crash) so most dpkg-dev functionality isn't there, but it's a
start.

The native toolchain is basically working for static binaries, and
shared libraries should work as soon as we resolve some remaining
issues with libgcc.a and PIC/non-PIC linking.  I'll post a tarball for
the native toolchain soon (beware, it's large).

The kernel is not stable enough (VM and exception handling are "not
quite there yet") to really use this stuff though so don't get too
excited :-)

If you're brave, you can use a 2.3.99pre8 kernel with the current
arch/parisc/kernel/{signal.c,entry.S} until we get our really-slow-VM
problems fixed.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Michael Shalayeff <mickey@lucifier.dial-up.user.akula.net>
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Subject: Re: [hppa-linux] syscall work
Date: Fri, 26 Mar 1999 10:39:43 -0500 (EST)
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In-Reply-To: <36FACD03.6446ACF4@netscape.com> from Mike Shaver at "Mar 25, 99 06:55:47 pm"
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Xref: news.gmane.org gmane.linux.ports.parisc:7792

Making, drinking tea and reading an opus magnum from Mike Shaver:
> Bob Pflederer wrote:
> > 
> > > OK, I'm convinced.  I've changed unistd.h to use 0xC0000404 (on the next
> > > page) for the syscall gateway, although we can easily change it back.
> > 
> > Isn't the next page at 0xc0001000?  Or does linux have some concept of
> > 1k "pages" even though pages in the TLB are 4k?
> 
> Brain-o.  0xC0001004 it is.
> 
> While we're on the topic, though: why 0xC0000004 and not 0xC0000000 as
0xC0000004 is because hpux uses it (;
dunno about linux's binary emulation principles, but for
all bsd's the emulation parameters pointer is located in the proc
structure, which allows syscall emulation to work even all
the emulated os'es are using the same syscall entry point (on some
architectures there might be only one possible way for syscall, 4 xampl)

> the target address?  (Although there are other bugs, like ``ldo 5,%r22''
> instead of ``ldi 5,%r22'' in the Assembler Ref as well, so maybe this is
> another?)
there is no such pa-risc instruction like ldi, it's a pseudo-asm-insn
which is actually ldo imm(0), rt
the whole pa-risc asm is full of pseudo-insns (like comb, comib, b(ranch))

cu

-- 
    paranoic mickey       (my employers have changed but, the name has remained)


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: [parisc-linux] New native toolchain tarballs uploaded
Date: 24 Aug 2000 13:28:07 -0400
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Hi,

ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/gcc-20000824.tar.gz
ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/glibc-20000824.tar.gz
ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/binutils-20000824.tar.gz

These are tested and seem to work rather well so long as the kernel
cooperates.  Still static-only of course, but quite functional.

I'm native-building sysvinit and util-linux at the moment and will
upload new tarballs of them as well.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Testing CPU detection
Date: Thu, 24 Aug 2000 17:43:56 -0400
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Hi.

With some of the changes that have gone into the tree over the past week,
it is now important that we get CPU detection correct.  So I took the
tables from the HWDB which are a lot more accurate than the ones which
were in the kernel before and built a new kernel using them.

I would be very obliged if people would boot the kernel which I've put up
at ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/Image-testcpu
and mail me (don't cc the list, please) the line which starts:

CPU might be a

It's fine on an A180 -- reports `PA7300LC (PCX-L2)'.  I want to know
what other machines get.  Thanks in advance to everyone who tests this
because I expect to be overwhelmed by mail from this :-).  Once I have
a reasonable sample, I'll check the code in.

Oh -- just remembered.  PA8600 (PCX-W+) processors aren't in this table.
people with J5600s will have to wait a few hours.

-- 
Revolutions do not require corporate support.


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Testing CPU detection
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Xref: news.gmane.org gmane.linux.ports.parisc:7795

For my A180:

CPU might be a PA7300LC (PCX-L2)
CPU(s): 1 x PA7300LC (PCX-L2) at 180.000000 MHz


For my 715/75:

CPU might be a PA7100 (PCX-T)
CPU(s): 1 x PA7100 (PCX-T) at 75.000000 MHz


Looking good,

Richard


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Kernel and palo source broken
Date: Fri, 25 Aug 2000 12:40:49 +0100
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Hi,
  I just cvs updated palo and kernel source, and grabbed a new
cross compiler build from Matt.

palo update results in by A180 boot stopping after:

  Entry 00100000 first 00100000 n 3
  Segment 0 load 00100000 size 1512788 mediaptr 0x1000
  Segment 1 load 00272000 size 115348 mediaptr 0x173000
  Segment 2 load 00290000 size 122880 mediaptr 0x190000
  branching to kernel entry point 0x00100000
  Set default PSW W bit to 0


Kernel wouldn't build - mostly arch/parisc/kernel/signal.c problems,
needs to include linux/version.h, PF_PTRACED undefined...

I did cvs update -D '24 hours ago' on various things and my A180
boots again, but my 715/75 doesn't.  It thinks it has three disks
rather than two plus a tape, disk probing then fails, and finally
it thinks it is sending BOOTP requests but nothing is seen on the
network.  

Boy, am I glad Friday lunchtime is pub time!

Richard


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Subject: Re: [parisc-linux] Kernel and palo source broken
Date: Fri, 25 Aug 2000 07:47:16 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:7797

On Fri, Aug 25, 2000 at 12:40:49PM +0100, Richard Hirst wrote:
> Kernel wouldn't build - mostly arch/parisc/kernel/signal.c problems,
> needs to include linux/version.h, PF_PTRACED undefined...

i just added sc_sar to the struct sigcontext.  i'm sure dhd has the
right fix and will commit it once he gets in... rebuilding now.
Hmm.  Wonder why that version number test doesn't work... oh well,
changing it to #if 1 gets it compiled for me.

> I did cvs update -D '24 hours ago' on various things and my A180
> boots again, but my 715/75 doesn't.  It thinks it has three disks
> rather than two plus a tape, disk probing then fails, and finally
> it thinks it is sending BOOTP requests but nothing is seen on the
> network.  
> 
> Boy, am I glad Friday lunchtime is pub time!

Ah yes, the quality of Friday afternoon code is definitely higher than
the rest of the week :-)

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] Kernel and palo source broken
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To: Matthew Wilcox <matthew@wil.cx>
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Xref: news.gmane.org gmane.linux.ports.parisc:7798

On Fri, Aug 25, 2000 at 07:47:16AM -0400, Matthew Wilcox wrote:
> On Fri, Aug 25, 2000 at 12:40:49PM +0100, Richard Hirst wrote:
> > Kernel wouldn't build - mostly arch/parisc/kernel/signal.c problems,
> > needs to include linux/version.h, PF_PTRACED undefined...
> 
> i just added sc_sar to the struct sigcontext.  i'm sure dhd has the
> right fix and will commit it once he gets in... rebuilding now.
> Hmm.  Wonder why that version number test doesn't work... oh well,
> changing it to #if 1 gets it compiled for me.

Needs #include <linux/version.h>.  I think I still had PF_PTRACED
undefined after that.

Richard


From - Thu Nov 08 21:13:15 2018
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From: Claudiu Carter <ccarter@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] badblocks segmentation fault when using mke2fs -c
Date: Fri, 25 Aug 2000 12:43:18 -0400
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Hi, i just though all should know that mke2fs works, but badblocks doesn't.
badblocks was run from the PA/Linux Development CD 0.1
i ran 'mke2fs -c -v /dev/sda3'
and got:

mke2fs 1.19-WIP, 7-Jul-2000 for EXT2 FS 0.5b, 95/08/09
ext2fs_check_if_mount: No such file or directory while determining whether
/dev.Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
118528 inodes, 237030 blocks
11851 blocks (0.00%) reserved for the super user
First data block=0
8 block groups
32768 blocks per group, 32768 fragments per group
14816 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 376

Running command: badblocks -b 4096 -s /dev/sda3 237030
do_page_fault() pid=21 command='badblocks'

PSW  : 0004fe0b  GR 1 : 00063580  GR 2 : 00000000  GR 3 : 00000000
GR 4 : 00000000  GR 5 : 00000000  GR 6 : 00000000  GR 7 : 00000000
GR 8 : 200200c8  GR 9 : 00000000  GR10 : 00000000  GR11 : 00000000
GR12 : 00000000  GR13 : 00000400  GR14 : 00000000  GR15 : 00001770
GR16 : 00000000  GR17 : 00000010  GR18 : 00061580  GR19 : 00000024
GR20 : 0006  GR21 : 81010100  GR22 : 62626262  GR23 : 00000000
GR24 : 00000000  GR25 : 200200c8  GR26 : 00000000  GR27 : 00061580
GR28 : 00000000  GR29 : ffffffff  GR30 : 20020200  GR31 : 00011b73
SR0  : 00002005  SR1  : 00002005  SR2  : 00000000  SR3  : 00002005
SR4  : 00002005  SR5  : 00002005  SR6  : 00002005  SR7  : 00002005

IASQ : 00002005 00002005 IAOQ : 00005827 0000582b
 IIR : 0ce01013 ISR : 00002005 IOR : 00000000

sending SIGSEGV
Segmentation fault
Writing inode tables: done
Writing superblocks and filesystem accounting information: done

L8R, Cloud.


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From: Claudiu Carter <ccarter@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] i halted my 712/80 by executing cp -R
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This is a multi-part message in MIME format.
--------------C048C7919A5019FB3E4B998F
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

so i tried to copy the entire mirror directory (~450MB)from the
development cd v0.1 and got a stack dump
if anyone is interested in seeing the actual output that i got, i have
enclosed a file with the whole stack dump, register dump and all other
use-(full / less :) info .
The 712/80 was booted using the development cd and i was trying to copy
from CD to HDD.

L8R, Cloud.

--------------C048C7919A5019FB3E4B998F
Content-Type: text/plain; charset=us-ascii;
 name="cp.error"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="cp.error"

# cp -R mirror mnt
ll_rw_block: device 5a:5a: only 1024-char blocks implemented (23130)

Dumping Stack from c4f68000 to c4f68b00:
8000 00000000 00000840 00000000 00000000 c027ac10 00000001 00000000 ffffffff
8020 00000000 00000014 00000000 00000000 c4f3d220 00000000 00000000 c02776f0
8040 c0d2803c c4f64000 c4f9c000 00000000 00000000 00000000 00000000 00000000
8060 00000000 00000000 00000002 00000001 00000000 00000001 00000000 c4f9c000
8080 c4f9c000 00000000 c4f64000 00000000 00000000 c02cfd9c 00000000 c4f6809c
80a0 c4f6809c c4f680a4 c01217a4 00000000 00000000 00000000 00000000 00000000
80c0 00000000 00000000 00000000 00000000 00000000 00000000 c4f68000 c0126dd0
80e0 00000000 00000000 0000376e 00000000 00000000 00000039 00000000 000037a7
8100 00000000 00000000 00000000 00000000 00000000 00000000 80000000 00000000
8120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
81a0 00000000 0000 00000000 00000000 00000000 00000000 00000000 00000000
81c0 fffffeff fffffeff ffffffff 00000000 00000000 ffffffff ffffffff ffffffff
81e0 ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff ffffffff
8200 ffffffff 00000500 00000500 00000400 00000400 ffffffff ffffffff ffffffff
8220 ffffffff 00006b73 77617064 00000000 00000000 00000000 00000000 00000000
8240 00000000 00000000 00000000 00004000 c026caf8 00004800 c02cf800 c4ffed60
8260 c024048d c026b940 00000008 c02ac600 c02d0800 c0122e90 c02ce800 c02ac000
8280 c028fc40 c027ac50 00000000 0004000a 0000003c 0000003e c027a800 00000001
82a0 c02b27a0 00000004 c02b278b 00000000 c013b720 0000003e 00000000 00000015
82c0 0000000b c027ac50 c027a800 c027a800 00000c00 000000ff 04f9c740 0000000d
82e0 c02ae000 c00003a8 00000000 00000003 00000000 c0272000 00000000 c02af100
8300 c4f9c900 c0122e58 000d081f 00000000 00000000 00000000 00000000 00000000
8320 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8340 40800000 00000000 7fffffff 7fffffff 7f7fffff ffffffff 7f7fffff ffffffff
8360 00000000 00000000 00000000 00000000 41800000 00000000 00000010 00000010
8380 00000000 00000000 7fffffff 7fffffff 41000000 00000000 40800000 00000000
83a0 7fffffff 7fffffff 41000000 00000000 7fffffff 7fffffff 00000000 00000f3c
83c0 00000019 000000a8 0000009c 00000000 0000002a 00000000 40200000 00000000
83e0 41800000 7fffffff 40000000 00000000 40000000 00000000 40800000 c4f686c0
8400 c010f4f0 00000000 00000000 00000000 00000000 00000000 00282000 00000000
8420 c0281040 c0281060 00000000 c0281200 00000000 00000000 ffffffff ffffffff
8440 00000000 c4f68440 00000000 00000000 00000000 00000000 00000000 00000000
8460 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
84a0 00000000 00000000 00000000 c010f448 00000000 00000000 00000000 00000000
84c0 c4f9c8c8 00000000 c4f64540 c4f68000 c0281708 00000000 c4f64000 c4f64540
84e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8500 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8520 00000000 00000000 00000000 c013b7e4 00000000 00000000 00000000 00000000
8540 c0285000 00000001 c4f68000 c027ba1c 00000002 c027b990 c4f68558 c013c4f0
8560 c4f68000 00000000 00000001 c018b2c8 00000000 c4f92260 c4f9c808 c4f9c810
8580 c4f92260 00000000 c028d000 00000001 c027b800 c02d0800 c0285000 00000001
85a0 c4f68000 c027ba1c 0000000b c013b658 00000000 00000010 c4f68780 c0e0
85c0 c028d000 00000001 c4f685c8 c4f685c8 c4f685c8 c4f685c8 00000c00 00000000
85e0 00004000 c4f9c810 c4f9c808 c4f92260 00000000 c028d000 00000001 c027b800
8600 c02d0800 00000004 00000004 00000000 00000001 00000008 00000000 c028d000
8620 00000001 c027b800 c02d0800 c013b588 00000004 00000001 00000002 00000008
8640 c4f3d0e0 00000000 c4f3d0f4 00000000 00000004 00000000 c02b8800 00000000
8660 00000004 00000001 0000001e c0131218 0000a000 00004000 00000000 00000c00
8680 00000200 c027b800 c02d0800 c023e800 c027b000 c027b7f0 c027d930 c4f685c8
86a0 c02d0fb8 000047c8 c0427ad0 c0427acc c0427ab8 c0427ad4 c02d0800 c027b800
86c0 00000200 00000004 00000000 0000000b 00000009 00000000 0000000b c4f924c0
86e0 c034d2f8 c034d2f8 c034d2c8 c0145a6c 00000000 0000485e c4f688c0 c018ba98
8700 c08604a0 c02b7e60 c2f7b200 00000002 c2f7b200 5a5a5a5a c0427ad4 c02b7e5c
8720 c02b7e60 c08604a0 c08604a0 0000003e 0000003c 00000024 0000000b c027ac50
8740 c027a800 c027a800 00000c00 000000ff c02cd20c 00000001 c01a3564 00000001
8760 00000005 f0105801 00000005 c014589c 00000060 00003fff c4f9c800 c0122e58
8780 0006ff0b c0231800 c0139b20 c07f7fa0 c07f7d1c c4fff9e0 c07f7ca0 0000000b
87a0 c02b7800 c0145978 c0348d50 c018c814 ffffffff c02d0800 00000023 0000ffff
87c0 c027b000 ffffffff c0427ab8 c4f685c8 c02d0fb8 000047c8 c0427ad0 00000006
87e0 c2f7b200 5a5a5a5a c07f7ca0 c0272000 c07f7ca0 c037c3d0 c4f689c0 c018bb5c
8800 00000000 00000000 0000003c 0000003e 00005a5a 00000400 c02b7ddc c024fa94
8820 c02b278b c02b27af 00000023 c018c7b4 0000003c 0000024 0000000b c027ac50
8840 00000004 00000200 c027b800 c02d0800 c023e800 00000000 ffffffff c0427ab8
8860 c02d3c54 00000001 00000001 c014322c 00000400 00000001 c2f7b200 c0122e58
8880 00000000 c2f7b200 00000000 00000000 00000000 00000000 c024fad4 00000000
88a0 00000000 00000000 00000000 c0122e90 00000003 ae15631c 00000000 51eb851f
88c0 0004fe0b c02b7800 c0143200 00000003 c2f7b200 00000002 c4f68708 00000001
88e0 00000001 c02d3c54 c0427ab8 ffffffff 00000000 c023e800 c02d0800 c027b800
8900 00000200 00000004 00000000 5a5a5a5a 5a5a5a5a c02b7e3c c02ce794 00000001
8920 c027ac44 00005a5a c2f7b200 c0272000 00000048 00003fff c4f68b00 c0122e58
8940 00000000 00000000 0000003c 0000003e c027a800 00000001 c02b27af 00000004
8960 c02b278b c02b27af 00000023 0000003e 0000003c 00000024 0000000b c027ac50
8980 c027a800 c027a800 00000c00 000000ff c02cd20c 00000001 c01a3564 00000001
89a0 00000005 f0105801 00000005 c0272000 00000060 00003fff c4f9c800 c0122e58
89c0 000d081f 00000000 00000000 00000000 00000000 00000000 00000000 00000000
89e0 00000000 00000000 00000000 00000000 00000003 ae15631c 00000000 51eb851f
8a00 00033d64 00000418 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
8a20 00000000 00000000 41800000 00000000 00000010 00000010 00000000 00000000
8a40 00000000 00002003 00000000 00002003 00000000 00000000 00000000 00000000
8a60 00000000 00000000 c0142504 c0142508 00000000 c4f68680 c4f68c40 0000001c
8a80 6a930040 00000000 5a5a5a7a c4f68780 00000100 00000000 c02cf800 c02cfd40
8aa0 c02cfd00 00000000 c02cf800 c01da87c c02cf800 c02cfd40 c02cfd00 00000000
8ac0 c027b000 c4f68680 0000000a 00000002 00000000 00000004 c4f68680 c027b800
8ae0 c02d0800 c023e800 c027b000 c0110d20 c4ff50e0 00000002 c0272560 00000200

Kernel Fault: Code=15 regs=c4f688c0 (Addr=5a5a5a7a)

PSW  : 0004fe0b  GR 1 : c02b7800  GR 2 : c0143200  GR 3 : 00000003
GR 4 : c2f7b200  GR 5 : 00000002  GR 6 : c4f68708  GR 7 : 00000001
GR 8 : 00000001  GR 9 : c02d3c54  GR10 : c0427ab8  GR11 : ffffffff
GR12 : 00000000  GR13 : c023e800  GR14 : c02d0800  GR15 : c027b800
GR16 : 00000200  GR17 : 00000004  GR18 : 00000000  GR19 : 5a5a5a5a
GR20 : 5a5a5a5a  GR21 : c02b7e3c  GR22 : c02ce794  GR23 : 00000001
GR24 : c027ac44  GR25 : 00005a5a  GR26 : c2f7b200  GR27 : c0272000
GR28 : 00000048  GR29 : 00003fff  GR30 : c4f68b00  GR31 : c0122e58
SR0  : 00000000  SR1  : 00002003  SR2  : 00000000  SR3  : 00002003
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000

IASQ : 00000000 00000000 IAOQ : c0142504 c0142508
 IIR : 6a930040 ISR : 00000000 IOR : 5a5a5a7a


--------------C048C7919A5019FB3E4B998F--


From - Thu Nov 08 21:13:16 2018
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From: Andrew Park <apark@cdf.toronto.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP-UX CD
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Is there anybody in Toronto who has HP-UX INSTALL CD?
If so, can I borrow it for about five minutes?  I only need it to change
console path on my 712/80.
Let me know, thanks.


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------


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             <Pine.LNX.4.21.0008251346001.739-100000@blue.cdf.utoronto.ca> 
Xref: news.gmane.org gmane.linux.ports.parisc:7802

= Is there anybody in Toronto who has HP-UX INSTALL CD?
= If so, can I borrow it for about five minutes?  I only need it to change
= console path on my 712/80.
= Let me know, thanks.

Matt Taggart was kind enough to put the required bits on our FTP site:
ftp://puffin.external.hp.com/pub/parisc/tools/uxbootlf

This is a bootable image -- use bootp or copy it to the front of
a tape or hard disk.

	-P


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From: Mike Shaver <shaver@netscape.com>
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Subject: Re: [hppa-linux] syscall work
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Michael Shalayeff wrote:
> Making, drinking tea and reading an opus magnum from Mike Shaver:
> > While we're on the topic, though: why 0xC0000004 and not 0xC0000000 as
> 0xC0000004 is because hpux uses it (;

Actually, I meant ``why does HP-UX use that address?''. =)

> dunno about linux's binary emulation principles, but for
> all bsd's the emulation parameters pointer is located in the proc
> structure, which allows syscall emulation to work even all
> the emulated os'es are using the same syscall entry point (on some
> architectures there might be only one possible way for syscall, 4 xampl)

Yes, we can do that too (and do on SPARC for Solaris at least, perhaps
SunOS as well), but it seems less efficient than just using different
syscall numbers or -- in the case of lovely hardware like PA-RISC --
using a different gateway address.

> > the target address?  (Although there are other bugs, like ``ldo 5,%r22''
> > instead of ``ldi 5,%r22'' in the Assembler Ref as well, so maybe this is
> > another?)
> there is no such pa-risc instruction like ldi, it's a pseudo-asm-insn
> which is actually ldo imm(0), rt
> the whole pa-risc asm is full of pseudo-insns (like comb, comib, b(ranch))

That I know, but ``ldo 5,%r22'' is illegal syntax (according to gas and
the assembler reference, anyway), and that's what appears in the
Assembler Ref.

Mike

-- 
158640.45 72598.35


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Broken floating-point varargs
Date: 25 Aug 2000 17:36:53 -0400
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Hi,

The variadic function code in GCC for HPPA is slightly broken for
floating point arguments.  This only affects the first and second
arguments, as all other ones will be passed on the stack.

The problem is that if a function uses va_start(), GCC emits a
prologue which stores the first four argument words to their
respective stack slots (sp-36 .. sp-48).  Unfortunately it does this
by simply copying general purpose registers 26 to 23 (arg0-arg3) to
these slots, even if some of the first four argument words are (parts
of) floating point values and thus reside in floating point registers.

See hppa_builtin_saveregs() in gcc/config/pa/pa.c for the code in
question.

It looks like we could fix this by checking the parameters and saving
from floating point argument registers instead, I'm just not sure how :-)

I'm wondering whether or not this manifests itself on HP/UX - would it
have something to do with (gack) argument relocation?

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Subject: [parisc-linux] 64-bit cross compiler broken
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The current 64-bit cross compiler dies on drivers/block/rd.c


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= 
= The current 64-bit cross compiler dies on drivers/block/rd.c
= 

Another 64-bit gotcha: in arch/parisc64/kernel/entry.S:start_parisc_asm
the 'b start_parisc' is branching through a stub and failing miserably.
Linker problem?

	-P


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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: [parisc-linux] 64 bit linker problem?
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> Another 64-bit gotcha: in arch/parisc64/kernel/entry.S:start_parisc_asm
> the 'b start_parisc' is branching through a stub and failing miserably.
> Linker problem?

Just some more information. The "b start_parisc" appears to branch to
what should be a stub entry. There is nothing there, i.e. it is all
zero's, so we get a break instruction trap.

John Marvin
jsm@fc.hp.com


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 64-bit cross compiler broken
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On Fri, 25 Aug 2000, Paul Bame wrote:

> = 
> = The current 64-bit cross compiler dies on drivers/block/rd.c
> = 
> 
> Another 64-bit gotcha: in arch/parisc64/kernel/entry.S:start_parisc_asm
> the 'b start_parisc' is branching through a stub and failing miserably.
> Linker problem?

Could be.  The 64-bit binutils port hasn't yet been modified to use
multiple stub sections.  That means a sufficiently large executable may
have branches that can't even reach the stubs, and I don't see any error
checking for this case.

Hmm, "sufficiently large" is 4*2**(22-1) for 22 bit branch offsets,
ie. 8M, so you're hardly likely to have hit that limit.  OK, can you tell
me the reloc type (from objdump -dr entry.o) for the branch?  Also, what
does the stub look like, and most importantly, what values does the stub
load out of the .plt.  I reckon you've probably got a bad .plt value as
the code in bfd/elf64-hppa.c:elf64_hppa_finish_dynamic_symbol for setting
the plt entry looks wrong to me.

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 64 bit linker problem?
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On Fri, 25 Aug 2000, John Marvin wrote:

> 
> > Another 64-bit gotcha: in arch/parisc64/kernel/entry.S:start_parisc_asm
> > the 'b start_parisc' is branching through a stub and failing miserably.
> > Linker problem?
> 
> Just some more information. The "b start_parisc" appears to branch to
> what should be a stub entry. There is nothing there, i.e. it is all
> zero's, so we get a break instruction trap.

Yeah.  That's the sort of thing I was expecting.  It appears to me that
only stubs or plt entries for dynamic symbols (ie. in shared libs) are
filled in.  Until we fix the linker, you may be able to work around the
problem by convincing the linker that a stub is not needed for the
branch.  Where is "start_parisc" relative to the branch?  If you know
you'll always need a long branch, why not use a ble?

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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Xref: news.gmane.org gmane.linux.ports.parisc:7810

On Thu, 24 Aug 2000, Matthew Wilcox wrote:

> It's fine on an A180 -- reports `PA7300LC (PCX-L2)'.  I want to know
> what other machines get.  Thanks in advance to everyone who tests this
> because I expect to be overwhelmed by mail from this :-).  Once I have

On my old 715/33 I get:
CPUID vers 0 rev 0
CPU might be a PA7100 (PCX-T)
CPU(s): 1 x PA7100 (PCX-T) at 33.333500 MHz

It seems ok to me.

Bye Andre'
-- 
eMail: A.Breiler@gmx.net
Type Bits/KeyID    Date       User ID
pub  2048/89D36175 1997/06/20 Andre' Breiler 2048 <A.Breiler@gmx.net> SIG
     Key fingerprint = 8E 9E A2 F8 29 27 CC 94  10 44 0E 40 7A C9 33 10


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From: Matthew Hudson <mhudson@home.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] My toolchain whoes...
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>From a gcc -E -dD

sigaction.c

In function __libc_sigaction

sigaction.c line 83:
      result = INLINE_SYSCALL (rt_sigaction, 4, sig,
                               act ? __ptrvalue (&kact) : NULL,
                               oact ? __ptrvalue (&koact) : NULL, _NSIG
/ 8);

gcc -E -dD output: (sorry I couldn't get this to you sooner willy I got
stuck in the middle of a bad day at work)
result = ({ unsigned long __sys_res; { register unsigned long __res
asm("r28"); register unsigned long __r24 __asm__("r24") = (unsigned
long)oact ? (&k_osigact) : ((void *)0); register unsigned long __r25
__asm__("r25") = (unsigned long)act ? (&k_sigact) : ((void *)0);
register unsigned long __r26__asm__("r26") = (unsigned long)sig; asm
volatile( "ble  0x100(%%sr2, %%r0)\n\t" " ldi %1, %%r20" : "=r" (__res)
: "i" ((__NR_sigaction)) , "r" (__r26), "r" (__r25), "r" (__r24) );
__sys_res = __res; } if (__sys_res >= (unsigned long)-4095) {
(*__errno_location ()) = (-__sys_res); __sys_res == (unsigned long)-1; }
__sys_res; });

undefined symbol: __NR_sigaction

Now, you tell me whats wrong?

My guess is that some how my config is getting mangled, I don't know
how.

Any ideas?

-Matt


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From: Erik Paulson <epaulson@upl.cs.wisc.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] FW Scsi support?
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Hi
	I'm trying to get my C100 and C160 to boot with the CD image. Everything
seems fine, except they don't see the SCSI disk I've got - only the CDROM.

My guess is that they're angry about it being on the FWSCSI, (my CDROM is
on SESCSI)

Is Fastwide SCSI supported? If not, what needs to be done? I didn't see how
to turn it on with 'make config'. Are there docs availble for this hardware?

Thanks!

-Erik


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From: Bob Pflederer <krp@rsn.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] FW Scsi support?
Date: Sun, 27 Aug 2000 19:54:07 -0500
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To: Erik Paulson <epaulson@upl.cs.wisc.edu>
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--HcAYCG3uE/tztfnV
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There have been some fixes to the kernel since the CDROM image was made
to get the U2 IO controller working correctly.  Also, I still need to apply 
the attached patch to get my C180 working.  The C160 should be the same as
C180 except for the frequency.  The C100 uses a PA7200 CPU instead of
PA8000 CPU and will not work with my entry.S changes, but may work if you
remove that portion of the patch.

My CDROM is not fastwide SCSI, but the kernel does detect the fastwide SCSI
harddrive.  I boot by LAN, but am able to mount CDROMs.

-Bob Pflederer

On Sun, Aug 27, 2000 at 04:52:29PM -0500, Erik Paulson wrote:
> Hi
> 	I'm trying to get my C100 and C160 to boot with the CD image. Everything
> seems fine, except they don't see the SCSI disk I've got - only the CDROM.
> 
> My guess is that they're angry about it being on the FWSCSI, (my CDROM is
> on SESCSI)
> 
> Is Fastwide SCSI supported? If not, what needs to be done? I didn't see how
> to turn it on with 'make config'. Are there docs availble for this hardware?
> 
> Thanks!
> 
> -Erik
> 

--HcAYCG3uE/tztfnV
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="c180.patch"

Index: arch/parisc/kernel/ccio-dma.c
===================================================================
RCS file: /home/cvs/parisc/linux-2.3/arch/parisc/kernel/ccio-dma.c,v
retrieving revision 1.3
diff -u -p -r1.3 ccio-dma.c
--- ccio-dma.c	2000/08/24 05:06:38	1.3
+++ ccio-dma.c	2000/08/28 00:35:36
@@ -53,8 +53,8 @@
 */
 #define MODULE_NAME "ccio"
 
-/*
 #define DEBUG_CCIO_INIT
+/*
 #define DEBUG_CCIO_RUN
 #define DEBUG_CCIO_RES
 */
@@ -785,6 +785,15 @@ STATIC void ccio_unmap_sg(struct pci_dev
 	return;
 }
 
+void
+ccio_dma_sync_single(struct pci_dev *dev, dma_addr_t iova, size_t size, int direction)
+{
+}
+
+void
+ccio_dma_sync_sg(struct pci_dev *dev, struct scatterlist *sg, int nelems, int direction)
+{
+}
 
 STATIC struct pci_dma_ops ccio_ops = {
 	ccio_dma_supported,
@@ -794,8 +803,8 @@ STATIC struct pci_dma_ops ccio_ops = {
 	ccio_unmap_single,
 	ccio_map_sg,
 	ccio_unmap_sg,
-	NULL,                   /* dma_sync_single : NOP for U2/Uturn */
-	NULL,                   /* dma_sync_sg     : ditto */
+	ccio_dma_sync_single,                   /* dma_sync_single : NOP for U2/Uturn */
+	ccio_dma_sync_sg,                   /* dma_sync_sg     : ditto */
 };
 
 
Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /home/cvs/parisc/linux-2.3/arch/parisc/kernel/entry.S,v
retrieving revision 1.25
diff -u -p -r1.25 entry.S
--- entry.S	2000/08/24 23:05:17	1.25
+++ entry.S	2000/08/28 00:35:45
@@ -637,6 +637,8 @@ dtlb_miss:
 	depi		1,12,1,prot
 	extru,=         pte,_PAGE_USER_BIT,1,r0
 	depi		7,11,3,prot /* Set for user space (1 rsvd for read) */
+	extru,= 	pte,_PAGE_GATEWAY_BIT,1,r0
+	depi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
 
 	/* Get rid of prot bits and convert to page addr for idtlba */
 
@@ -646,9 +648,18 @@ dtlb_miss:
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
+/*
 	idtlba		pte,(%sr1,va)
 	idtlbp		prot,(%sr1,va)
 
+        depd    pte,31,32,pte
+        depdi   0,45,14,pte
+	idtlbt		pte,prot
+*/
+	.word		0xf2310c00
+	.word		0xf6200652
+	.word		0x06301800
+
 	mtsp		t0, %sr1     /* Restore sr1 */
 
 	rfir
@@ -694,6 +705,8 @@ itlb_miss_common:
 	copy            spc,prot        /* init prot with faulting space */
 	dep		pte,8,7,prot
 
+	extru,=		pte,_PAGE_NO_CACHE_BIT,1,r0
+	depi		1,12,1,prot
 	extru,=         pte,_PAGE_USER_BIT,1,r0
 	depi		7,11,3,prot /* Set for user space (1 rsvd for read) */
 	extru,= 	pte,_PAGE_GATEWAY_BIT,1,r0
@@ -706,10 +719,19 @@ itlb_miss_common:
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
-
+/*
 	iitlba		pte,(%sr1,va)
 	iitlbp		prot,(%sr1,va)
+        depd    pte,31,32,pte
+        depdi   0,45,14,pte
+	iitlbt		pte,prot
+*/
+
+	.word		0xf2310c00
+	.word		0xf6200652
+	.word		0x06300800
 
+
 	mtsp		t0, %sr1     /* Restore sr1 */
 
 	rfir
@@ -755,6 +777,8 @@ dbit_trap:
 	depi		1,12,1,prot
 	extru,=         pte,_PAGE_USER_BIT,1,r0
 	depi		7,11,3,prot /* Set for user space (1 rsvd for read) */
+	extru,= 	pte,_PAGE_GATEWAY_BIT,1,r0
+	depi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
 
 	/* Get rid of prot bits and convert to page addr for idtlba */
 
@@ -763,9 +787,17 @@ dbit_trap:
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
-
+/*
 	idtlba		pte,(%sr1,va)
 	idtlbp		prot,(%sr1,va)
+
+        depd    pte,31,32,pte
+        depdi   0,45,14,pte
+	idtlbt		pte,prot
+*/
+	.word		0xf2310c00
+	.word		0xf6200652
+	.word		0x06301800
 
 	mtsp		t0, %sr1     /* Restore sr1 */
 

--HcAYCG3uE/tztfnV
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="c180.log"
Content-Transfer-Encoding: quoted-printable


=0DMain Menu: Enter command >=20
=0DMain Menu: Enter command > bo lan
=0DInteract with IPL (Y, N, Q)?> y
=0D=0D
Booting... =0D
Network Station Address 0060b0-1839c0=0D
System IP Address 192.168.0.250=0D
Server IP Address 192.168.0.1=0D
=0D
Boot IO Dependent Code (IODC) revision 2=0D
=0D
=0D
HARD Booted.=0D
palo ipl krp@localhost.localdomain Sun Aug 27 19:34:20 CDT 2000=0D
0/vmlinux 2087866 bytes @ 0x6800=0D
0/palo-cmdline '0/vmlinux HOME=3D/ TERM=3DLINUX root=3D/dev/nfs nfsroot=3D1=
92.168.0.7 '=0D
0/vmlinux HOME=3D/ TERM=3DLINUX root=3D/dev/nfs nfsroot=3D192.168.0.7 =0D
Kernel: partition 0 file /vmlinux=0D
ELF32 executable
=0D
Entry 00100000 first 00100000 n 4=0D
Segment 0 load 00100000 size 1510260 mediaptr 0x1000=0D
Segment 1 load 00272000 size 115444 mediaptr 0x172000=0D
Segment 2 load 00290000 size 115080 mediaptr 0x18f000=0D
Segment 3 load 002b0000 size 8192 mediaptr 0x1ac000=0D
branching to kernel entry point 0x00100000=0D
pdc_cons registered !=0D
The Kernel has started...=0D
Free memory starts at: 0xc02e1000=0D
PALO command line: 'HOME=3D/ TERM=3DLINUX root=3D/dev/nfs nfsroot=3D192.168=
.0.7 '=0D
PALO initrd 0-0=0D
FP CCR was 0x0, will be set to 0xc0=0D
model   000059c0 00000481 00000000 00000002 77422781 100000f0 00000008 0000=
00b2 000000b2=0D
vers    00000205=0D
cpuid   000001c9=0D
CPUID vers 14 rev 9=0D
CPU might be a PA8000 (PCX-U)=0D
CPU(s): 1 x PA8000 (PCX-U) at 180.000000 MHz=0D
Searching for devices in PDC firmware... a newer box...=0D
Found devices:=0D
1. Unknown device (4) at 0xf200c000, versions 0x3b, 0x0, 0x89, 0x0, 0x80=0D
2. Raven U/L2 Core BA (11) at 0xffd00000, versions 0x3b, 0x0, 0x81, 0x0, 0x=
0=0D
3. Raven U/L2 Core RS-232 (10) at 0xffd05000, versions 0x3b, 0x0, 0x8c, 0x0=
, 0x0=0D
4. Raven U/L2 Core SCSI (10) at 0xffd06000, versions 0x3b, 0x0, 0x82, 0x0, =
0x0=0D
5. Raven U/L2 Core Lan (802.3) (10) at 0xffd07000, versions 0x3b, 0x0, 0x8a=
, 0x0, 0x0=0D
6. UL 350 Core Centronics (10) at 0xffd02000, versions 0x2e, 0x0, 0x74, 0x0=
, 0x0=0D
7. Raven U/L2 Core Audio (10) at 0xffd04000, versions 0x3b, 0x4, 0x7b, 0x0,=
 0x0=0D
8. Raven U/L2 Core PC Keyboard (10) at 0xffd08000, versions 0x3b, 0x0, 0x84=
, 0x0, 0x0=0D
9. Raven U/L2 Core PC Keyboard (10) at 0xffd08100, versions 0x3b, 0x0, 0x84=
, 0x0, 0x0=0D
10. Raven Backplane Wax BA (11) at 0xffe00000, versions 0x17, 0x0, 0x8e, 0x=
0, 0x0=0D
11. Raven Backplane Wax EISA BA (11) at 0xfc000000, versions 0x17, 0x0, 0x9=
0, 0x0, 0x0=0D
12. Raven Backplane Wax HIL (10) at 0xffe01000, versions 0x17, 0x0, 0x73, 0=
x0, 0x0=0D
13. Raven Backplane RS-232 (10) at 0xffe02000, versions 0x17, 0x0, 0x8c, 0x=
0, 0x0=0D
14. Gecko GSC Core Graphics (10) at 0xfa000000, versions 0x16, 0x0, 0x85, 0=
x0, 0x0=0D
15. U2-IOA BC GSC+ Port (7) at 0xf203f000, versions 0x501, 0x1, 0xc, 0x3, 0=
x0=0D
16. U2-IOA BC GSC+ Port (7) at 0xf103f000, versions 0x501, 0x1, 0xc, 0x3, 0=
x0=0D
17. Dino PCI Bridge (13) at 0xf2000000, versions 0x680, 0x1, 0xa, 0x0, 0x0=
=0D
That's a total of 17 devices.=0D
Linux version 2.4.0-test6 (krp@localhost.localdomain) (gcc version 2.96 200=
00707 (experimental)) #34 Sun Aug 27 19:33:37 CDT 2000=0D
initrd: 00000000-00000000=0D
pagetable_init=0D
On node 0 totalpages: 32768=0D
zone(0): 16384 pages.=0D
zone(1): 16384 pages.=0D
zone(2): 0 pages.=0D
Kernel command line: HOME=3D/ TERM=3DLINUX root=3D/dev/nfs nfsroot=3D192.16=
8.0.7 =0D
trap_init=0D
Calibrating delay loop... 286.72 BogoMIPS=0D
Memory: 125676k available=0D
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)=0D
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)=0D
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)=0D
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)=0D
POSIX conformance testing by UNIFIX=0D
Lasi version 0 at 0xffd00000 found.=0D
Wax at 0xffe00000 found.=0D
Wax: HIL Keyboard-NMI registered.=0D
parport0: PC-style at 0xffd02800, irq 536 [PCSPP,TRISTATE]=0D
Found i82596 at 0xffd07000, IRQ 535=0D
early initialization of device eth0 is deferred=0D
Initializing lasi keyboard port at 0xffd08000...=0D
Initializing lasi mouse port at 0xffd08100...=0D
Found HIL at 0xffe01000, IRQ 798=0D
No handler for interrupt 259 !=0D
HIL: timed out, assuming no keyboard present.=0D
Warning : device (10, 0x17, 0x0, 0x73, 0x0) NOT claimed by HIL 712, 715 or =
similiar=0D
Dino version 2.1 (bridge mode) found at 0xf2000000=0D
=0D
=0D
The GSCtoPCI (Dino hrev 1) bus converter found may exhibit=0D
data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.=0D
Systems shipped after Aug 20, 1997 will not exhibit this problem.=0D
Models affected: C180, C160, C160L, B160L, and B132L workstations.=0D
=0D
dino_bridge_init: IO_ADDR_EN hasn't been configured.=0D
kernel BUG at dino.c:646!=0D
ccio found U2 GSC+ BC at 0xf203f000=0D
ccio_alloc_pdir hpa 0xfff88000 mem 128MB IOV 8MB (23 bits)=0D
    PDIR size 0x4000 base c7f90000 chainid_shift 0xf=0D
ccio_resmap_init() res_size 0x100=0D
ccio found U2 GSC+ BC at 0xf103f000=0D
ccio: already initialized one device=0D
Linux NET4.0 for Linux 2.4=0D
Based upon Swansea University Computer Society NET3.039=0D
NET4: Linux TCP/IP 1.0 for NET4.0=0D
IP Protocols: ICMP, UDP, TCP=0D
IP: routing cache hash table of 1024 buckets, 8Kbytes=0D
TCP: Hash tables configured (established 8192 bind 8192)=0D
Starting kswapd v1.7=0D
pty: 256 Unix98 ptys configured=0D
lp0: using parport0 (interrupt-driven).=0D
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize=0D
sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 534=0D
scsi0: Revision 0x2=0D
Post test1, istat 01, sstat0 00, dstat 84=0D
sim700: WARNING IRQ probe failed, (returned 0)=0D
scsi0: Good, target data areas are dma coherent=0D
scsi0: test 1 completed ok.=0D
scsi0: sim700_intr_handle() called with no interrupt=0D
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 260=0D
ncr53c8xx: 53c720 detected=0D
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential=0D
ncr53c720-0: restart (scsi reset).=0D
scsi0 : LASI/Simple 53c7xx=0D
scsi1 : ncr53c8xx - version 3.3b=0D
scsi : 2 hosts.=0D
  Vendor: TOSHIBA   Model: CD-ROM XM-5401TA  Rev: 1036=0D
  Type:   CD-ROM                             ANSI SCSI revision: 02=0D
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 2, lun 0=0D
  Vendor: SEAGATE   Model: ST34371W          Rev: HP03=0D
  Type:   Direct-Access                      ANSI SCSI revision: 02=0D
Detected scsi disk sda at scsi1, channel 0, id 6, lun 0=0D
ncr53c720-0-<6,0>: tagged command queue depth set to 8=0D
scsi : detected 1 SCSI cdrom 1 SCSI disk total.=0D
Uniform CD-ROM driver Revision: 3.11=0D
ncr53c720-0-<6,0>: wide msgout: 1-2-3-1.=0D
ncr53c720-0-<6,0>: wide msgin: 1-2-3-1.=0D
ncr53c720-0-<6,0>: wide: wide=3D1 chg=3D0.=0D
ncr53c720-0-<6,0>: sync_msgout: 1-3-1-19-8.=0D
ncr53c720-0-<6,0>: sync msgin: 1-3-1-19-8.=0D
ncr53c720-0-<6,0>: sync: per=3D25 scntl3=3D0x10 ofs=3D8 fak=3D0 chg=3D0.=0D
ncr53c720-0-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)=0D
SCSI device sda: hdwr sector=3D 512 bytes. Sectors=3D 8388314 [4095 MB] [4.=
1 GB]=0D
Partition check:=0D
 sda: unknown partition table=0D
eth0: 82596 at 0xffd07000, 00 60 B0 18 39 C0 IRQ 535.=0D
82596.c $Revision: 1.12 $=0D
Serial driver version 5.01 (2000-05-29) with MANY_PORTS SHARE_IRQ SERIAL_PC=
I enabled=0D
Found serial #0 at 0xffd05000, IRQ 538=0D
ttyS00 at iomem 0xffd05800 (irq =3D 538) is a 16550A=0D
Found serial #1 at 0xffe02000, IRQ 793=0D
ttyS01 at iomem 0xffe02800 (irq =3D 793) is a 16550A=0D
eth0: link ok.=0D
Sending BOOTP requests.... OK=0D
IP-Config: Got BOOTP answer from 192.168.0.1, my address is 192.168.0.250=0D
Switching from PDC console=0D
kmem_create: Forcing size word alignment - nfs_fh
=0DLooking up port of RPC 100003/2 on 192.168.0.7
=0DLooking up port of RPC 100005/2 on 192.168.0.7
=0DVFS: Mounted root (nfs filesystem) readonly.
=0Dexecve /sbin/init c0272008 c0272030
=0DFri Aug  4 01:33:00 /home/bame/xc/hppa 2000=0D
dd: /dev/zero: Bad address=0D
0+0 records in=0D
0+0 records out=0D
mke2fs 1.19-WIP, 7-Jul-2000 for EXT2 FS 0.5b, 95/08/09=0D
ext2fs_check_if_mount: No such file or directory while determining whether =
/dev/ram is mounted.=0D=0D
Filesystem label=3D=0D
OS type: Linux=0D
Block size=3D1024 (log=3D0)=0D
Fragment size=3D1024 (log=3D0)=0D
1024 inodes, 4096 blocks=0D
0 blocks (0.00%) reserved for the super user=0D
First data block=3D1=0D
1 block group=0D
8192 blocks per group, 8192 fragments per group=0D
1024 inodes per group=0D
=0D
Writing inode tables: 0/1=08=08=08done                            =0D
Writing superblocks and filesystem accounting information: done=0D
=0D
		Welcome to PA/Linux release 0.1=0D
	    (release 0.1 means don't expect much from it!)=0D
=0D
In addition to the bootable image, this CD contains cross compilers,=0D
source code, and documentation.  You can initialize a bootable PA-RISC=0D
hard disk from this CD too.  Read /README to find out more.=0D
=0D
Since progress never stops, by the time you boot this it'll be out of=0D
date, so check out http://www.thepuffingroup.com/parisc/ for the latest.=0D
=0D
Login as a superuser     login: root password: root=0D
   or as a normal user   login: demo password: demo=0D
=0D
=0D
=0D
h47clk1p login: Login timed out after 60 seconds=0D

--HcAYCG3uE/tztfnV--


From - Thu Nov 08 21:13:17 2018
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From: Michael Shalayeff <mickey@lucifier.dial-up.user.akula.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] syscall work
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To: shaver@netscape.com (Mike Shaver)
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Making, drinking tea and reading an opus magnum from Mike Shaver:
> Michael Shalayeff wrote:
> > Making, drinking tea and reading an opus magnum from Mike Shaver:
> > > While we're on the topic, though: why 0xC0000004 and not 0xC0000000 as
> > 0xC0000004 is because hpux uses it (;
> Actually, I meant ``why does HP-UX use that address?''. =)
my guess is NULL-challenge (:

> > dunno about linux's binary emulation principles, but for
> > all bsd's the emulation parameters pointer is located in the proc
> > structure, which allows syscall emulation to work even all
> > the emulated os'es are using the same syscall entry point (on some
> > architectures there might be only one possible way for syscall, 4 xampl)
> 
> Yes, we can do that too (and do on SPARC for Solaris at least, perhaps
> SunOS as well), but it seems less efficient than just using different
> syscall numbers or -- in the case of lovely hardware like PA-RISC --
> using a different gateway address.
ok, valid.
let's think what is less efficient: extra mapped page, or
extra indirrect ptr reference?
my point is, why map extra page (and waiste extra page) ?
one page is 128 page dir entries, hehe (; returning to the pd discussion)

> > > the target address?  (Although there are other bugs, like ``ldo 5,%r22''
> > > instead of ``ldi 5,%r22'' in the Assembler Ref as well, so maybe this is
> > > another?)
> > there is no such pa-risc instruction like ldi, it's a pseudo-asm-insn
> > which is actually ldo imm(0), rt
> > the whole pa-risc asm is full of pseudo-insns (like comb, comib, b(ranch))
> 
> That I know, but ``ldo 5,%r22'' is illegal syntax (according to gas and
> the assembler reference, anyway), and that's what appears in the
> Assembler Ref.
ah, oh, that's too bad.
i guess i've made the typo/reado as they did in the manual (:
(btw, 'i' and 'o' are very close on the kbd ;)

cu

-- 
    paranoic mickey       (my employers have changed but, the name has remained)


From - Thu Nov 08 21:13:17 2018
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From: Craig Miller <craig.miller@bigfoot.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP 735/125 hangs w/latest kernel
Date: Mon, 28 Aug 2000 00:16:34 -0700
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This is a multi-part message in MIME format.

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Content-Type: text/plain;
	charset="iso-8859-1"
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In the interest of providing useful feedback:

My HP 735/125 box hangs when booting the demo CD.  It gets to

...
ASP version 20 at oxf08000000 found.
request_irq(250, c01ec76c, 0x0, asp, c4ff5080)=20

and then just hangs.

I would be happy to work with someone if they are interested in testing =
on an HP 735/125.

--Craig


------=_NextPart_000_000B_01C01085.395F5E20
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 5.50.4134.600" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>In the interest of providing useful=20
feedback:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>My HP 735/125 box hangs when booting =
the demo=20
CD.&nbsp; It gets to</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>ASP version 20 at oxf08000000 =
found.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>request_irq(250, c01ec76c, 0x0, asp, =
c4ff5080)=20
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>and then just hangs.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV>I would be happy to work with someone if they are interested in =
testing on=20
an HP 735/125.</DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>--Craig</FONT></DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

------=_NextPart_000_000B_01C01085.395F5E20--


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] 64-bit cross compiler broken
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Xref: news.gmane.org gmane.linux.ports.parisc:7816

On Fri, Aug 25, 2000 at 05:17:53PM -0600, Paul Bame wrote:
> = 
> = The current 64-bit cross compiler dies on drivers/block/rd.c
> = 
> 
> Another 64-bit gotcha: in arch/parisc64/kernel/entry.S:start_parisc_asm
> the 'b start_parisc' is branching through a stub and failing miserably.
> Linker problem?

Wow, you're getting to start_parisc_asm?!  Neat!  You can take it out
now, just branch directly to start_parisc instead -- i only put it in
so that i knew what was being executed, rather than having to decode
what the C was doing.  That doesn't necessarily mean that there isn't
a problem, but we should be able to get further than that.

-- 
Revolutions do not require corporate support.


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] FW Scsi support?
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Xref: news.gmane.org gmane.linux.ports.parisc:7817

On Sun, Aug 27, 2000 at 04:52:29PM -0500, Erik Paulson wrote:
> Hi
> 	I'm trying to get my C100 and C160 to boot with the CD image. Everything
> seems fine, except they don't see the SCSI disk I've got - only the CDROM.
> 
> My guess is that they're angry about it being on the FWSCSI, (my CDROM is
> on SESCSI)
> 
> Is Fastwide SCSI supported? If not, what needs to be done? I didn't see how
> to turn it on with 'make config'. Are there docs availble for this hardware?

You need to enable Zalon support.  Not sure where that is in the config
section.

-- 
Revolutions do not require corporate support.


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Xref: news.gmane.org gmane.linux.ports.parisc:7818

On http://www.thepuffingroup.com/parisc/recipe.html, I can get informations
on how to build binutils , gcc and kernel for hppa1.1. But I can not learn
how to configure and make glibc (target:hppa1.1-linux) on X86 Linux, so
would you give me a direction. 
Thanks
			
				YSZhang
				2000/8/28


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Subject: Re: [parisc-linux] My toolchain whoes...
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On Sat, Aug 26, 2000 at 06:49:27PM -0500, Matthew Hudson wrote:
> 
> >From a gcc -E -dD

I needed the whole file for that, not just the bit where it goes wrong.

Please send it to me off-list as it'll be a few hundred k, i bet.

-- 
Revolutions do not require corporate support.


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] My toolchain whoes...
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Matthew Hudson <mhudson@home.com> writes:

> gcc -E -dD output: (sorry I couldn't get this to you sooner willy I got
> stuck in the middle of a bad day at work)
> result = ({ unsigned long __sys_res; { register unsigned long __res
> asm("r28"); register unsigned long __r24 __asm__("r24") = (unsigned
> long)oact ? (&k_osigact) : ((void *)0); register unsigned long __r25
> __asm__("r25") = (unsigned long)act ? (&k_sigact) : ((void *)0);
> register unsigned long __r26__asm__("r26") = (unsigned long)sig; asm
> volatile( "ble  0x100(%%sr2, %%r0)\n\t" " ldi %1, %%r20" : "=r" (__res)
> : "i" ((__NR_sigaction)) , "r" (__r26), "r" (__r25), "r" (__r24) );
> __sys_res = __res; } if (__sys_res >= (unsigned long)-4095) {
> (*__errno_location ()) = (-__sys_res); __sys_res == (unsigned long)-1; }
> __sys_res; });
> 
> undefined symbol: __NR_sigaction
> 
> Now, you tell me whats wrong?

That's pretty screwed up, actually.  The line that says __NR_sigaction
clearly should say __NR_rt_sigaction (given that this is the output of
INLINE_SYSCALL(rt_sigaction, ...).  I don't know why it isn't.

Unless you pasted the wrong line ;-)

> My guess is that some how my config is getting mangled, I don't know
> how.

I'll say.  Maybe somewhere along the line some nasty header file did
something bad.  I'll see if the same thing is happening here.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] problems compiling..
Date: Mon, 28 Aug 2000 09:47:01 -0700
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Joe,
I've forwarded your mail to "parisc-linux" instead of "parisc-linux-request".

I think you just need get an internet connection for the box and update the
CVS archive you are working from.

Also, AFAIK, the --target should be "hppa-linux" or "hppa1.1-linux".
Not sure where MACH fits into that.
I haven't rebuilt the tool chain in quite a while...but I suggest
you look at build-tools/README and build-tools/palinux-autobuilder.

grant

------- Forwarded Message

Message-ID: <A4A5E4C468B5D11190220001FA6835DD04DD86AD@epixch003>
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To: "'parisc-linux-request@thepuffingroup.com'" <parisc-linux-request@thepuffingroup.com>,
        "'grundler@cup.hp.com'" <grundler@cup.hp.com>
Subject: Re: [parisc-linux] problems compiling..
Date: Mon, 28 Aug 2000 09:24:47 +0200
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Dear Grant,

I downloaded the last gcc in date of 2000-08-24 and I tried to compile gcc
on a HP workstation C110 (9000/777) with hp-ux 11.00  and gcc 2.95.2 from
The HPUX Software Porting and Archive Center. (I need to recompile the
kernel because I have to safely use the graphical port as console)

As explain in the recipe, I tried to run ./contrib/gcc_update but failed
because no internet connection is available on this server.

Assuming at this moment that the archive is up to date, I tried to go
further and launch the configure process.
(MACH=hppa-hpux ; DEST=/opt/puffin)
configure failed because "hppa-hp-hpux" is not a supported platform?
Fortunately, I still have a paper copy of the previous release of recipe
which reveal me that MACH must be hppa1.1-hpux.
Then configure was successfully completed.

But the make failed on the same error as encountered by Jeff Towarnicki in
the message:
http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/07-Jul/0105.ht
ml.
Thanks in advance for help,
	Joel

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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] glibc configuration problem
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anyone trying to configure glibc on a debian potato box is probably
going to get:

checking for make... make
checking version of make... 3.78.1, bad
...
configure: error:
*** Some critical program is missing or too old.

this is an upstream change to glibc.  to fix this, get make 3.79.1 from
woody.  It doesn't have any dependencies which require you to upgrade
any other package.

-- 
Revolutions do not require corporate support.


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From: "Thierry SIMONNET" <t.simonnet@esiee.fr>
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Subject: [parisc-linux] linux-2.3 mkdep
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Xref: news.gmane.org gmane.linux.ports.parisc:7823

After my holidays, I synchronized my CVS directories.
I have found a problem when I do "make dep" : scripts/mkdep : Arg list too
long.
I have encoutered this problem with fist versions of parisc-linux 2.3.99
version.

My development platform was : HP712/80 under HP-UX 10.20

TX for your help

Th. SIMONNET


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 735/125 hangs w/latest kernel
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Xref: news.gmane.org gmane.linux.ports.parisc:7824

On Mon, Aug 28, 2000 at 12:16:34AM -0700, Craig Miller wrote:
> In the interest of providing useful feedback:
> 
> My HP 735/125 box hangs when booting the demo CD.  It gets to
> 
> ...
> ASP version 20 at oxf08000000 found.
> request_irq(250, c01ec76c, 0x0, asp, c4ff5080) 

My 715/75 hangs there if CONFIG_PARPORT_GSC is enabled.  Don't know if that
was turned on on the CD kernel, but it probably was (defaults to on).

Richard


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From: Mike Shaver <shaver@netscape.com>
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Subject: [hppa-linux] progress
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[shaver@loonie linux] gmake CROSS_COMPILE=hppa-linux- vmlinux
[...]
make[1]: Leaving directory `/builds2/parisc-linux/linux/arch/parisc/lib'
hppa-linux-ld -m hppaelf -e stext arch/parisc/kernel/head.o
arch/parisc/kernel/init_task.o init/main.o init/version.o \
        --start-group \
        arch/parisc/kernel/kernel.o arch/parisc/mm/mm.o kernel/kernel.o
mm/mm.o fs/fs.o ipc/ipc.o \
        fs/filesystems.a \
        net/network.a \
        drivers/block/block.a drivers/char/char.a drivers/misc/misc.a
drivers/net/net.a drivers/video/video.a \
        /builds2/parisc-linux/linux/arch/parisc/lib/lib.a
/builds2/parisc-linux/linux/lib/lib.a
/builds2/parisc-linux/linux/arch/parisc/lib/lib.a \
        --end-group \
        -o vmlinux
hppa-linux-ld: can not size stub section: Bad value
hppa-linux-ld: warning: cannot find entry symbol stext; defaulting to
00002000
gmake: *** [vmlinux] Segmentation fault (core dumped)
gmake: *** Deleting file `vmlinux'
[shaver@loonie linux]

I think Nat has a fix for that, but I'll have to find it and respin the
cross-compiler before I can do anything more.

Mike

-- 
167319.81 72598.35


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] linux-2.3 mkdep
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On Tue, Aug 29, 2000 at 08:24:59AM +0200, Thierry SIMONNET wrote:
> After my holidays, I synchronized my CVS directories.
> I have found a problem when I do "make dep" : scripts/mkdep : Arg list too
> long.
> I have encoutered this problem with fist versions of parisc-linux 2.3.99
> version.

oh, blast.  i guess we need to refrob the Makefile to use xargs.  Damn,
damn damn damn.  I took that out in the recent merge because it conflicted
with a change from upstream.

> My development platform was : HP712/80 under HP-UX 10.20

i can't persuade you to use linux on an x86 instead...?  ah well :-)


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From: bame@riverrock.org
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Subject: Re: [parisc-linux] linux-2.3 mkdep
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Pretty sure there's a tunable parameter to boost the argv size on hp-ux.
It's rather useless right out of the box.

	-P


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From: Steven Pritchard <steve@silug.org>
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Subject: Re: [parisc-linux] linux-2.3 mkdep
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bame@riverrock.org said:
> Pretty sure there's a tunable parameter to boost the argv size on hp-ux.

Assuming you have the right patches installed, you should have a
"large_ncargs_enabled" (IIRC, I don't have a HP-UX box handy at the
moment) tunable parameter.  Set it to 1.  (Note that this is only on
HP-UX 10.20 with the right patches...  In 11.0, they use a larger
buffer for argv by default.)

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(618)398-7320             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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From: Claudiu Carter <ccarter@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP D270 boots ok, log inside
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This is a multi-part message in MIME format.
--------------DD6064467AE735BB0ECF5742
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Tara and I have managed to boot both an R390 and D270 here's the log for
the D270.

Claudiu Carter.

--------------DD6064467AE735BB0ECF5742
Content-Type: text/plain; charset=us-ascii;
 name="D270-log"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="D270-log"

Firmware Version  37.28

Duplex Console IO Dependent Code (IODC) revision 0

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------
      0       160 MHz   Active                 Functional          512 KB
      1       160 MHz   Idle                   Functional          512 KB

  Central Bus Speed (in MHz)  :        120

  Model: D270/2

  Available memory (bytes)    : 1073741824
  Good memory required (bytes):   85504000

  Primary boot path:    8/12.5   (dec)
  Alternate boot path:  8/16/5.0   (dec)
  Console path:         8/12/0.0   (dec)
  Keyboard path:        8/16/7.0   (dec)

CPU 0
WARNING:  Memory has been initialized, but not tested as a result of
          FASTBOOT being enabled.  To test memory, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


------- Main Menu -------------------------------------------------------------

        Command                         Description
        -------                         -----------
        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration [<command>]       Access Configuration menu/commands
        INformation [<command>]         Access Information menu/commands
        SERvice [<command>]             Access Service menu/commands

        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command > Search

Searching for potential boot device(s)...
This may take several minutes.

To discontinue search, press any key (termination may not be immediate).


   Path Number        Device Path (dec)        Device Type
   -----------        -----------------        -----------
   P0                 8/12.5                   Random access media
   P1                 8/12.8                   Random access media
   P2                 8/16/5.2                 Random access media
   P3                 8/16/6.0                 LAN Module


Main Menu: Enter command > bo P2
Interact with IPL (Y, N, or Cancel)?> N

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl bame@noam Fri Aug  4 18:36:35 MDT 2000
0/vmlinux 2349352 bytes @ 0x6f6000
0/palo-cmdline '0/vmlinux TERM=linux HOME=/ root=/dev/scd0'
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1511580 mediaptr 0x1000
Segment 1 load 00272000 size 132368 mediaptr 0x173000
Segment 2 load 00294000 size 86880 mediaptr 0x194000
Segment 3 load 002ac000 size 8192 mediaptr 0x1aa000
branching to kernel entry point 0x00100000
pdc_cons registered !
The Kernel has started...
Free memory starts at: 0xc02dc000
PALO command line: 'TERM=linux HOME=/ root=/dev/scd0'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00005a30 00000491 00000000 00000002 775c3955 100000f0 00000008 000000b22vers    00000205
cpuid   000001c9
CPUID vers 14 rev 9
CPU(s): 1 x PA8000 at 160.000000 MHz
Searching for devices in PDC firmware... a newer box...
Found devices:
1. UL 350 Lasi Core BA (11) at 0xffd00000, versions 0x2e, 0x0, 0x81, 0x0, 0x0
2. UL 350 Lasi Core RS-232 (10) at 0xffd05000, versions 0x2e, 0x0, 0x8c, 0x0, 003. UL 350 Core SCSI (10) at 0xffd06000, versions 0x2e, 0x0, 0x82, 0x0, 0x80
4. UL 350 Core LAN (802.3) (10) at 0xffd07000, versions 0x2e, 0x0, 0x8a, 0x0, 005. UL 350 Core Centronics (10) at 0xffd02000, versions 0x2e, 0x0, 0x74, 0x0, 0x06. UL 350 Core PC Keyboard (10) at 0xffd08000, versions 0x2e, 0x0, 0x84, 0x0, 007. UL 350 Core PC Keyboard (10) at 0xffd08100, versions 0x2e, 0x0, 0x84, 0x0, 008. UL 350 Core Wax BA (11) at 0xffe00000, versions 0x30, 0x0, 0x8e, 0x0, 0x0
9. UL 350 Wax EISA BA (11) at 0xfc000000, versions 0x30, 0x0, 0x90, 0x0, 0x0
10. UL 350 Wax Core RS-232 (10) at 0xffe02000, versions 0x30, 0x0, 0x8c, 0x0, 00That's a total of 10 devices.
Linux version 2.3.99-pre8 (bame@noam) (gcc version 2.96 20000707 (experimental)0initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
trap_init
Calibrating delay loop... 292.45 BogoMIPS
Memory: 125696k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
kmem_create: Poisoning requested, but con given - bdev_cache
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
kmem_create: Poisoning requested, but con given - inode_cache
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
request_irq(258, c01ec76c, 0x0, lasi, c7ff9080)
Wax at 0xffe00000 found.
request_irq(263, c01ec76c, 0x0, wax, c7ff9140)
request_irq(797, c01ec994, 0x0, wax_hil_nmi, 00000000)
Wax: HIL Keyboard-NMI registered.
parport0: PC-style at 0xffd02800, irq 536 [PCSPP,TRISTATE]
request_irq(536, c01ecac8, 0x0, parport0, c7ffcc00)
Found i82596 at 0xffd07000, IRQ 535
early initialization of device eth0 is deferred
Initializing lasi keyboard port at 0xffd08000...
request_irq(517, c01ae2fc, 0x0, GSC PS/2, ffd08000)
Initializing lasi mouse port at 0xffd08100...
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
kmem_create: Poisoning requested, but con given - skbuff_head_cache
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
Starting kswapd v1.6
pty: 256 Unix98 ptys configured
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sim700: Couldn't get consistent shared memory
sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 534
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: WARNING: target data areas are not dma coherent!
scsi0: test 1 completed ok.
request_irq(534, c01da868, 0x20000000, sim700, c7f8d260)
scsi0: sim700_intr_handle() called with no interrupt
scsi0 : LASI/Simple 53c700
scsi : 1 host.
  Vendor: TOSHIBA   Model: CD-ROM XM-5701TA  Rev: 1347
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 2, lun 0
scsi : detected 1 SCSI cdrom total.
Uniform CD-ROM driver Revision: 3.08
82596: 6 0 0 at c028cc10
82596: 6 ffd07000 217 at c7ffca00
eth0: 82596 at 0xffd07000, 08 00 09 55 5A 62 IRQ 535.
82596.c $Revision: 1.9 $
Serial driver version 4.93 (2000-03-20) with MANY_PORTS SHARE_IRQ SERIAL_PCI endFound serial #0 at 0xffd05000, IRQ 538
ttyS00 at iomem 0xffd05800 (irq = 538) is a 16550A
Found serial #1 at 0xffe02000, IRQ 793
ttyS01 at iomem 0xffe02800 (irq = 793) is a 16550A
pdc_cons die !!
kmem_create: Forcing size word alignment - nfs_fh
VFS: Disk change detected on device sr(11,0)
ISO 9660 Extensions: RRIP_1991A
VFS: Mounted root (iso9660 filesystem) readonly.
request_irq(538, c019e908, 0x4000000, serial, c02c976c)
execve /sbin/init c0272008 c0272030
Fri Aug  4 01:33:00 /home/bame/xc/hppa 2000
dd: /dev/zero: Bad address
0+0 records in
0+0 records out
mke2fs 1.19-WIP, 7-Jul-2000 for EXT2 FS 0.5b, 95/08/09
ext2fs_check_if_mount: No such file or directory while determining whether /dev.Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
1024 inodes, 4096 blocks
0 blocks (0.00%) reserved for the super user
First data block=1
1 block group
8192 blocks per group, 8192 fragments per group
1024 inodes per group

Writing inode tables: done
Writing superblocks and filesystem accounting information: done

                Welcome to PA/Linux release 0.1
            (release 0.1 means don't expect much from it!)

In addition to the bootable image, this CD contains cross compilers,
source code, and documentation.  You can initialize a bootable PA-RISC
hard disk from this CD too.  Read /README to find out more.

Since progress never stops, by the time you boot this it'll be out of
date, so check out http://www.thepuffingroup.com/parisc/ for the latest.

Login as a superuser     login: root password: root
   or as a normal user   login: demo password: demo



(none) login: root
Password:


Most of the programs included with the Debian GNU/Linux system are
freely redistributable; the exact distribution terms for each program
are described in the individual files in /usr/doc/*/copyright

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
sh: can't access tty; job control turned off
# pwd
/root
# cd /
# ls -al
total 213
dr-xr-xr-x   18 root     root         4096 Aug  4  2000 .
dr-xr-xr-x   18 root     root         4096 Aug  4  2000 ..
-r--r--r--    1 root     root         1962 Aug  4  2000 README
-r--r--r--    1 root     root         3678 Aug  4  2000 README.INSTALL
dr-xr-xr-x    2 root     root         4096 Aug  4 00:35 bin
dr-xr-xr-x    2 root     root         2048 Aug  3 19:19 boot
dr-xr-xr-x    2 root     root       163840 Aug  4  2000 dev
dr-xr-xr-x    5 root     root         4096 Aug  4  2000 etc
dr-xr-xr-x    2 root     root         2048 Jun 15 00:10 home
dr-xr-xr-x    2 root     root         2048 Aug  3 16:50 include
dr-xr-xr-x    2 root     root         2048 Jun 15 00:10 lib
dr-xr-xr-x    9 root     root         2048 Aug  5  2000 mirror
dr-xr-xr-x    2 root     root         2048 Jun 15 00:10 mnt
dr-xr-xr-x   17 root     root            0 Aug 30  2000 proc
dr-xr-xr-x    2 root     root         2048 Jun 15 00:10 root
dr-xr-xr-x    2 root     root         8192 Aug  3 23:04 sbin
dr-xr-xr-x    4 root     root         2048 Jul 31 16:27 share
drwxrwxrwx    3 root     root         1024 Aug  4 01:33 tmp
dr-xr-xr-x   15 root     root         2048 Aug  3 23:04 usr
dr-xr-xr-x   10 root     root         2048 Aug  4  2000 var
# cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC <NULL>
cpu             : PA8000
cpu MHz         : 160.000000
model           :
model name      : UL 2w U160 512K/512K (871/D270,D370)
hversion        : 0x00005a30
sversion        : 0x00000491
I-cache         : 512 KB
D-cache         : 512 KB (WB)
ITLB entries    : 96
DTLB entries    : 96 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (16 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 292.45
# shutdown now -h
Why? why not?
shutdown: halted by ghost: why not?
Couldn't umount pipe: on none: No such file or directory
Unmounting any remaining filesystems...
shutdown: Cannot open /etc/mtab.

Now you can turnSystem halted.
 off the power..gsc.c:gsc_mach cmd 2
.

--------------DD6064467AE735BB0ECF5742--


From - Thu Nov 08 21:13:18 2018
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From: Claudiu Carter <ccarter@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP R390 boots ok, log inside
Date: Tue, 29 Aug 2000 15:10:30 -0400
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This is a multi-part message in MIME format.
--------------C52EBA3FCF6E1122A4AD8B94
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Tara and i have managed to boot both an R390 and D270, here's the log
for the R390.

Claudiu Carter.

--------------C52EBA3FCF6E1122A4AD8B94
Content-Type: text/plain; charset=us-ascii;
 name="R390-log"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="R390-log"

Firmware Version  38.39

Duplex Console IO Dependent Code (IODC) revision 0

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------
      0       240 MHz   Active                 Functional            2 MB
      1       240 MHz   Idle                   Functional            2 MB

  Central Bus Speed (in MHz)  :        120

  Model: R390/2

  Available memory (bytes)    : 1610612736
  Good memory required (bytes):    8847360

  Primary boot path:    8/16/5.6   (dec)
  Alternate boot path:  8/16/5.5   (dec)
  Console path:         10/12.0   (dec)
  Keyboard path:        8/16/7.0   (dec)

Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


------- Main Menu -------------------------------------------------------------

        Command                         Description
        -------                         -----------
        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration [<command>]       Access Configuration menu/commands
        INformation [<command>]         Access Information menu/commands
        SERvice [<command>]             Access Service menu/commands

        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command > Search

Searching for potential boot device(s)...
This may take several minutes.

To discontinue search, press any key (termination may not be immediate).


   Path Number        Device Path (dec)        Device Type
   -----------        -----------------        -----------
   P0                 8/16/5.6                 Random access media
   P1                 8/16/5.5                 Random access media
   P2                 8/16/5.1                 Random access media
   P3                 8/16/6.0                 LAN Module


Main Menu: Enter command > bo P2
Interact with IPL (Y, N, or Cancel)?> N

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl bame@noam Fri Aug  4 18:36:35 MDT 2000
0/vmlinux 2349352 bytes @ 0x6f6000
0/palo-cmdline '0/vmlinux TERM=linux HOME=/ root=/dev/scd0'
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1511580 mediaptr 0x1000
Segment 1 load 00272000 size 132368 mediaptr 0x173000
Segment 2 load 00294000 size 86880 mediaptr 0x194000
Segment 3 load 002ac000 size 8192 mediaptr 0x1aa000
branching to kernel entry point 0x00100000
pdc_cons registered !
The Kernel has started...
Free memory starts at: 0xc02dc000
PALO command line: 'TERM=linux HOME=/ root=/dev/scd0'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00005ba0 00000491 00000000 00000002 77f03bdf 100000f0 00000008 000000b22vers    00000501
cpuid   000001d7
CPUID vers 14 rev 23
CPU(s): 1 x PA8200 at 240.000000 MHz
Searching for devices in PDC firmware... a newer box...
Found devices:
1. UL 550 Lasi Core BA (11) at 0xffd00000, versions 0x2f, 0x0, 0x81, 0x0, 0x0
2. UL 550 Lasi Core RS-232 (10) at 0xffd05000, versions 0x2f, 0x0, 0x8c, 0x0, 003. UL 550 Core SCSI (10) at 0xffd06000, versions 0x2f, 0x0, 0x82, 0x0, 0x80
4. UL 350 Core LAN (802.3) (10) at 0xffd07000, versions 0x2f, 0x0, 0x8a, 0x0, 005. UL 550 Core Centronics (10) at 0xffd02000, versions 0x2f, 0x0, 0x74, 0x0, 0x06. UL 550 Core PC Keyboard (10) at 0xffd08000, versions 0x2f, 0x0, 0x84, 0x0, 007. UL 550 Core PC Keyboard (10) at 0xffd08100, versions 0x2f, 0x0, 0x84, 0x0, 008. UL 550 Core Wax BA (11) at 0xffe00000, versions 0x31, 0x0, 0x8e, 0x0, 0x0
9. UL 550 Wax EISA BA (11) at 0xfc000000, versions 0x31, 0x0, 0x90, 0x0, 0x0
10. UL 550 Wax Core RS-232 (10) at 0xffe02000, versions 0x31, 0x0, 0x8c, 0x0, 0011. Raven Opt. 2D Graphics (Goat) (10) at 0xf6000000, versions 0x12, 0x0, 0x77,0That's a total of 11 devices.
Linux version 2.3.99-pre8 (bame@noam) (gcc version 2.96 20000707 (experimental)0initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
trap_init
Calibrating delay loop... 374.37 BogoMIPS
Memory: 125696k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
kmem_create: Poisoning requested, but con given - bdev_cache
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
kmem_create: Poisoning requested, but con given - inode_cache
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
request_irq(258, c01ec76c, 0x0, lasi, c7ff9080)
Wax at 0xffe00000 found.
request_irq(263, c01ec76c, 0x0, wax, c7ff9140)
request_irq(797, c01ec994, 0x0, wax_hil_nmi, 00000000)
Wax: HIL Keyboard-NMI registered.
parport0: PC-style at 0xffd02800, irq 536 [PCSPP,TRISTATE]
request_irq(536, c01ecac8, 0x0, parport0, c7ffcc00)
Found i82596 at 0xffd07000, IRQ 535
early initialization of device eth0 is deferred
Initializing lasi keyboard port at 0xffd08000...
request_irq(517, c01ae2fc, 0x0, GSC PS/2, ffd08000)
Initializing lasi mouse port at 0xffd08100...
Linux NET4.0 for Linux 2.3
Based upon Swansea University Computer Society NET3.039
kmem_create: Poisoning requested, but con given - skbuff_head_cache
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
Starting kswapd v1.6
pty: 256 Unix98 ptys configured
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sim700: Couldn't get consistent shared memory
sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 534
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: WARNING: target data areas are not dma coherent!
scsi0: test 1 completed ok.
request_irq(534, c01da868, 0x20000000, sim700, c7f8d260)
scsi0: sim700_intr_handle() called with no interrupt
scsi0 : LASI/Simple 53c700
scsi : 1 host.
  Vendor: PIONEER   Model: DVD-ROM DVD-303   Rev: 1.04
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 1, lun 0
  Vendor: SEAGATE   Model: ST39173N          Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 5, lun 0
  Vendor: SEAGATE   Model: ST39173N          Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
scsi : detected 1 SCSI cdrom 2 SCSI disks total.
sr0: scsi3-mmc drive: 0x/0x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.08
SCSI device sda: hdwr sector= 512 bytes. Sectors= 17773524 [8678 MB] [8.7 GB]
Partition check:
 sda: unknown partition table
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 17773524 [8678 MB] [8.7 GB]
 sdb: unknown partition table
82596: 6 0 0 at c028cc10
82596: 6 ffd07000 217 at c7ffca00
eth0: 82596 at 0xffd07000, 08 00 09 FD 7A AB IRQ 535.
82596.c $Revision: 1.9 $
Serial driver version 4.93 (2000-03-20) with MANY_PORTS SHARE_IRQ SERIAL_PCI end
Found serial #0 at 0xffd05000, IRQ 538
ttyS00 at iomem 0xffd05800 (irq = 538) is a 16550A
Found serial #1 at 0xffe02000, IRQ 793
ttyS01 at iomem 0xffe02800 (irq = 793) is a 16550A
pdc_cons die !!
kmem_create: Forcing size word alignment - nfs_fh
VFS: Disk change detected on device sr(11,0)
ISO 9660 Extensions: RRIP_1991A
VFS: Mounted root (iso9660 filesystem) readonly.
request_irq(538, c019e908, 0x4000000, serial, c02c976c)
execve /sbin/init c0272008 c0272030
Fri Aug  4 01:33:00 /home/bame/xc/hppa 2000
dd: /dev/zero: Bad address
0+0 records in
0+0 records out
mke2fs 1.19-WIP, 7-Jul-2000 for EXT2 FS 0.5b, 95/08/09
ext2fs_check_if_mount: No such file or directory while determining whether /dev.
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
1024 inodes, 4096 blocks
0 blocks (0.00%) reserved for the super user
First data block=1
1 block group
8192 blocks per group, 8192 fragments per group
1024 inodes per group

Writing inode tables: done
Writing superblocks and filesystem accounting information: done

                Welcome to PA/Linux release 0.1
            (release 0.1 means don't expect much from it!)

In addition to the bootable image, this CD contains cross compilers,
source code, and documentation.  You can initialize a bootable PA-RISC
hard disk from this CD too.  Read /README to find out more.

Since progress never stops, by the time you boot this it'll be out of
date, so check out http://www.thepuffingroup.com/parisc/ for the latest.

Login as a superuser     login: root password: root
   or as a normal user   login: demo password: demo



(none) login: root
Password:


Most of the programs included with the Debian GNU/Linux system are
freely redistributable; the exact distribution terms for each program
are described in the individual files in /usr/doc/*/copyright

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
sh: can't access tty; job control turned off
# pwd
/root
# cd /
# ls -la
total 213
dr-xr-xr-x   18 root     root         4096 Aug  4  2000 .
dr-xr-xr-x   18 root     root         4096 Aug  4  2000 ..
-r--r--r--    1 root     root         1962 Aug  4  2000 README
-r--r--r--    1 root     root         3678 Aug  4  2000 README.INSTALL
dr-xr-xr-x    2 root     root         4096 Aug  4 00:35 bin
dr-xr-xr-x    2 root     root         2048 Aug  3 19:19 boot
dr-xr-xr-x    2 root     root       163840 Aug  4  2000 dev
dr-xr-xr-x    5 root     root         4096 Aug  4  2000 etc
dr-xr-xr-x    2 root     root         2048 Jun 15 00:10 home
dr-xr-xr-x    2 root     root         2048 Aug  3 16:50 include
dr-xr-xr-x    2 root     root         2048 Jun 15 00:10 lib
dr-xr-xr-x    9 root     root         2048 Aug  5  2000 mirror
dr-xr-xr-x    2 root     root         2048 Jun 15 00:10 mnt
dr-xr-xr-x   17 root     root            0 Aug 29  2000 proc
dr-xr-xr-x    2 root     root         2048 Jun 15 00:10 root
dr-xr-xr-x    2 root     root         8192 Aug  3 23:04 sbin
dr-xr-xr-x    4 root     root         2048 Jul 31 16:27 share
drwxrwxrwx    3 root     root         1024 Aug  4 01:33 tmp
dr-xr-xr-x   15 root     root         2048 Aug  3 23:04 usr
dr-xr-xr-x   10 root     root         2048 Aug  4  2000 var
# cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC <NULL>
cpu             : PA8200
cpu MHz         : 240.000000
model           :
model name      : UL 2w U+/240 (350/550)
hversion        : 0x00005ba0
sversion        : 0x00000491
I-cache         : 2048 KB
D-cache         : 2048 KB (WB)
ITLB entries    : 120
DTLB entries    : 120 - shared with ITLB
BTLB            : not supported
bogomips        : 374.37
# shutdown now -h
Why?
shutdown: halted by ghost:
Couldn't umount pipe: on none: No such file or directory
Unmounting any remaining filesystems...
shutdown: Cannot open /etc/mtab.

Now you can turnSystem halted.
 off the power..gsc.c:gsc_mach cmd 2
.

--------------C52EBA3FCF6E1122A4AD8B94--


From - Thu Nov 08 21:13:18 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP R390 boots ok, log inside
Date: Tue, 29 Aug 2000 13:45:42 -0700
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To: Claudiu Carter <ccarter@linuxcare.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:7831

Claudiu Carter wrote:

> Tara and i have managed to boot both an R390 and D270, here's the log
> for the R390.

Tara, Claudia,

Just FYI. I wanted to point out the only things that work under the
R390/D270 (and similar boxes) are sim700 and serial port - bare minimum
to boot. What's missing from the CD is U2/Uturn support. Bob Pflederer
was able to get U2 support working some time after the CD image was burned.

sim700 DMA happens to work since Richard Hirst made sim700 work
on boxes which are not I/O coherent (eg 715/33) by adding explicit
cache flushing code where needed.

serial doesn't do DMA and thus isn't affected.
But LAN and other GSC/PCI add-on are affected.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:13:18 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] 2.4.0-test6 lack of speed
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In-Reply-To: <20000823172320.E4060@linuxcare.com>; from Richard Hirst on Wed, Aug 23, 2000 at 05:23:20PM +0100
Xref: news.gmane.org gmane.linux.ports.parisc:7832

On Wed, Aug 23, 2000 at 05:23:20PM +0100, Richard Hirst wrote:
> It looks to me like all calls to flush_cache_range() are passed a user
> virtual address, except for those calls from arch/parisc/kernel/pci-dma.c
> where we pass kernel virtual addresses.

agreed.

> So perhaps flush_cache_range() should generate FIC/FICE/FDC/FDCE
> instructions with a space register of %sr3, and pci-dma.c should
> use some other method of flushing memory.
> 
> I was looking at the difference between FDC and FDCE; it seems FDC
> does address translation and FDCE does not, so should we use FDC
> really?  flush_cache_range() currently uses FDCE/FICE.

we should stop using FICE/FDCE/PDTLBE/PITLBE except in the `flush
entire cache' routines.  the definitions should be moved from cache.h
to cache.c.  No-one else should be given the opportunaity to use them.
They are too undefined.

> Helge Deller wrote some code in drivers/net/lasi_82596.c that plays
> with %sr1 and uses FDC, FIC, PDC, SYNC, and SYNCDMA.
> 
> Can someone tell me why include/asm/cache.h has no space register
> specified on fdce():
> 
> > #define fdce(addr) asm volatile("fdce 0(%0)" : : "r" (addr))
> > #define fice(addr) asm volatile("fice 0(%%sr1,%0)" : : "r" (addr))
> > 
> > #define pdtlbe(addr) asm volatile("pdtlbe 0(%%sr1,%0)" : : "r" (addr))
> > #define pitlbe(addr) asm volatile("pitlbe 0(%%sr1,%0)" : : "r" (addr))

My attempt at fixing this in a sane manner led me to create:

#define user_fdc(addr) asm volatile("fdc 0(%%sr3,%0)" : : "r" (addr))
(...)

and

#define kernel_fdc(addr) asm volatile("fdc 0(%%sr0,%0)" : : "r" (addr))
(...)

however, the resulting kernel wouldn't boot.  So let's take this a
step at a time and see how far we can go towards eliminating the *E
variants.  I've written a little rant on this suject which you can find
in linux-2.3/Documentation/parisc/mm.  feel free to ignore it if you want.

> ps. as you can see, I am learning as I go here, so all hints and
> clues are gratefully accepted!

Likewise!  BTW, I hear davem wrote a doc about this which is in
-test8-pre1 which may help somewhat.

-- 
Revolutions do not require corporate support.


From - Thu Nov 08 21:13:18 2018
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Subject: Re: [parisc-linux] 2.4.0-test6 lack of speed
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To: Richard Hirst <rhirst@linuxcare.com>, Helge Deller <deller@gmx.de>
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On Tue, Aug 29, 2000 at 05:23:08PM -0400, Matthew Wilcox wrote:
> > Helge Deller wrote some code in drivers/net/lasi_82596.c that plays
> > with %sr1 and uses FDC, FIC, PDC, SYNC, and SYNCDMA.

> #define kernel_fdc(addr) asm volatile("fdc 0(%%sr0,%0)" : : "r" (addr))
> 
> however, the resulting kernel wouldn't boot.  So let's take this a
> step at a time and see how far we can go towards eliminating the *E
> variants.  I've written a little rant on this suject which you can find
> in linux-2.3/Documentation/parisc/mm.  feel free to ignore it if you want.

ok.  we now have interfaces for flushing kernel dcache.  I'm assuming
that no-one is intending to dma to/from an instruction page, so i
haven't included an icache variant.  i'm not using sync or syncdma yet.
perhaps i should be.  are we out-of-order right now or have we told the
MMU to strongly order our writes?

Anyway, would either of Richard or Helge like to look over the lasi_82596
driver and convert it to use the flush_kernel_dcache_range() interface
or tell me why my code is no good and I suck?  Ditto the sim700 driver
actually.  Are there any other drivers which have simply taken the
lasi_82596 wback code and replicated it or are these the only two?


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From: Andrew Park <apark@cdf.toronto.edu>
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Subject: [parisc-linux] still cannot boot.
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I must be missing something...
I got a bootable HP-UX installation CD today, so I popped it in my CDROM
and on the BOOT_ADMIN> prompt I typed, boot lan isl.  It still gets
stuck, then I changed the path, so that cdrom is primary and the LAN is
secondary, then typed  boot pri isl, and it comes right back to the
BOOT_ADMIN> prompt.  Am I missing something obvious?


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] still cannot boot.
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Xref: news.gmane.org gmane.linux.ports.parisc:7835


Andrew Park writes...

> I must be missing something...
> I got a bootable HP-UX installation CD today, so I popped it in my CDROM
> and on the BOOT_ADMIN> prompt I typed, boot lan isl.  It still gets
> stuck, then I changed the path, so that cdrom is primary and the LAN is
> secondary, then typed  boot pri isl, and it comes right back to the
> BOOT_ADMIN> prompt.  Am I missing something obvious?

Are you sure that the CDROM is bootable? What type of CDROM drive are you 
using? I'm not positive that just any drive will work. Can you see the cdrom 
when you do a "sea scsi"? If not then either the CDROM isn't bootable or the 
drive isn't working.

Why don't you try to use the uxbootlf that I posted? I know you're having 
problems with bootp/tftp but you'll need to get them working if you want to 
use newer kernels.

In my experience bootp/tftp are a pain for everyone and just require 
persistance to get working. Send me errors if you can't get it working.

-- 
Matt Taggart
taggart@fc.hp.com



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From: Jason Eckhardt <jason@equator.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] Linker scripts and the boot loader
Date: Fri, 26 Mar 1999 11:21:14 -0800 (PST)
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>
> Okay.  How does the boot loader work with loading the kernel?  I recall
> Jason saying something about the boot loader knowing how to load binaries.
>

  Currently, the bootloader assumes that the kernel is position independent
  and either straight binary or SOM (packed with ld -N). By "straight" binary
  I mean only the code and no headers, etc.
  I think HockeyPUX is linked at a certain address and is not position
  independent. I'm not sure why being inflexible like this is a win, but if
  necessary we could do the same.

  Also, since the loader assumes a binary image, the ELF image we produce
  will need to be massaged (same as x86 linux kernel, at least at one time).
  This was done because its simple to just read one record after the other
  into memory and execute.
  Alternatively, more code could be added to "understand" ELF. I prefer to
  keep the bootloader simple...it is just a bootloader after all.

  The simple dummy kernel you saw in the bootstrap tests is just a position
  independent binary loaded straight from the LIF and executed.

  Jason.


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] badblocks segmentation fault when using mke2fs -c
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Claudiu Carter writes...

> Hi, i just though all should know that mke2fs works, but badblocks doesn't.
> badblocks was run from the PA/Linux Development CD 0.1
> i ran 'mke2fs -c -v /dev/sda3'
> and got:
[snip]
> 
> Running command: badblocks -b 4096 -s /dev/sda3 237030
> do_page_fault() pid=21 command='badblocks'
[snip]

I just rebuilt e2fsprogs(available on the ftp site) and tried the above. It 
still does the same thing.

If I run badblocks with out the "-b blocksize" flag it works fine.

Hopefully someone knows what this means :)

-- 
Matt Taggart
taggart@fc.hp.com



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Xref: news.gmane.org gmane.linux.ports.parisc:7838


Andrew Park writes...

> Hi, all
> 
> Just wondering ... I'm trying to build gcc, but although I passed in
> 
> 	make LIBGCC2_INCLUDES=-I$DEST/include

Rather than do that I would use a "--with-headers=$DEST/include" flag in the 
configure phase.

Or if you're lazy or not interesting in building it yourself you could just 
grab an i386-linux cross compiler tarball from,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-latest.tgz


-- 
Matt Taggart
taggart@fc.hp.com



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On Tue, 29 Aug 2000, Matt Taggart wrote:

> 
> Andrew Park writes...
> 
> > I must be missing something...
> > I got a bootable HP-UX installation CD today, so I popped it in my CDROM
> > and on the BOOT_ADMIN> prompt I typed, boot lan isl.  It still gets
> > stuck, then I changed the path, so that cdrom is primary and the LAN is
> > secondary, then typed  boot pri isl, and it comes right back to the
> > BOOT_ADMIN> prompt.  Am I missing something obvious?
> 
> Are you sure that the CDROM is bootable? What type of CDROM drive are you 
> using? I'm not positive that just any drive will work. Can you see the cdrom 
> when you do a "sea scsi"? If not then either the CDROM isn't bootable or the 
> drive isn't working.

The CDROM is a 4 speed NEC.  search at BOOT_ADMIN> prompt returns

	NEC CD-ROM DRIVE:501

so it is finding it.

> Why don't you try to use the uxbootlf that I posted? I know you're having 
> problems with bootp/tftp but you'll need to get them working if you want to 
> use newer kernels.
> 
> In my experience bootp/tftp are a pain for everyone and just require 
> persistance to get working. Send me errors if you can't get it working.

We can narrow it down to tftp.  bootp sees the request and replies to
it, but somehow tftp just doesn't transfer uxbootlf.  But it likes
vmlinux (coming from building palo) in which case it transfers the kernel
and gets stuck only at pdc_cons die !!  This is bizarre...
With uxbootlf, I did a strace on one of the in.tftpd process and got

recv(0, 0x804b380, 516, 0)              = ? ERESTARTSYS (To be restarted)
--- SIGALRM (Alarm clock) ---
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
send(0, "\0\3\0\200\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 516, 0) = 516
alarm(5)                                = 0
recv(0, 0x804b380, 516, 0)              = ? ERESTARTSYS (To be restarted)
--- SIGALRM (Alarm clock) ---
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
send(0, "\0\3\0\200\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 516, 0) = 516
alarm(5)                                = 0
recv(0, 0x804b380, 516, 0)              = ? ERESTARTSYS (To be restarted)
--- SIGALRM (Alarm clock) ---
_exit(1)                                = ?

While the client is trying to download the image, the server always
has four in.tftpd instances.  Older process times out, then a fresh one
comes a board.  Unfortunately, log file doesn't say much, it only
has

	trying to get file: /tftpboot/uxbootlf

which comes from

	int validate_access (char,int)

of tftpd.c.  I put some debugging message to it and verified that
the function did not return an error.
So any ideas now?  With the same set up (with an exception of boot image
file name) vmlinux (resulting image of doing make palo under linux-2.3
directory) pretty much works, but with uxbootlf it doesn't go anywhere
so far - very odd.
Let me know, Thanks.


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------


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From: Kirk Bresniker <kirkb@chrome.rose.hp.com>
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Subject: Re: [parisc-linux] still cannot boot.
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To: apark@cdf.toronto.edu (Andrew Park)
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In-Reply-To: <Pine.SOL.4.21.0008292333530.24934-100000@misty.cdf>; from "Andrew Park" at Aug 30, 100 1:25 am
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Xref: news.gmane.org gmane.linux.ports.parisc:7840

| 
| > 
| > Andrew Park writes...
| > 
| > > I must be missing something...
| > > I got a bootable HP-UX installation CD today, so I popped it in my CDROM
| > > and on the BOOT_ADMIN> prompt I typed, boot lan isl.  It still gets
| > > stuck, then I changed the path, so that cdrom is primary and the LAN is
| > > secondary, then typed  boot pri isl, and it comes right back to the
| > > BOOT_ADMIN> prompt.  Am I missing something obvious?
| > 

Em, if you're trying to boot from your CD-ROM, why are you typing
a command to attempt a lan boot?  Don't you want to do the following:

BOOT_ADMIN> boot scsi[some address stuff] isl ?

KMB
--
+============================================================+
|       Kirk Bresniker    	(916) 748-2393		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] 2.4.0-test6 lack of speed
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To: Matthew Wilcox <matthew@wil.cx>
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Xref: news.gmane.org gmane.linux.ports.parisc:7841

On Wed, Aug 30, 2000 at 01:17:52AM +0100, Matthew Wilcox wrote:
> Anyway, would either of Richard or Helge like to look over the lasi_82596
> driver and convert it to use the flush_kernel_dcache_range() interface
> or tell me why my code is no good and I suck?  Ditto the sim700 driver
> actually.  Are there any other drivers which have simply taken the
> lasi_82596 wback code and replicated it or are these the only two?

Only those two, so far as I'm aware.  I'll have a look at them.

Richard


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.0-test6 lack of speed
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To: Matthew Wilcox <matthew@wil.cx>
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Xref: news.gmane.org gmane.linux.ports.parisc:7842

On Tue, Aug 29, 2000 at 05:23:08PM -0400, Matthew Wilcox wrote:
> My attempt at fixing this in a sane manner led me to create:
> 
> #define user_fdc(addr) asm volatile("fdc 0(%%sr3,%0)" : : "r" (addr))
> (...)
> 
> and
> 
> #define kernel_fdc(addr) asm volatile("fdc 0(%%sr0,%0)" : : "r" (addr))
> (...)
> 
> however, the resulting kernel wouldn't boot.  So let's take this a

I tried something similar, with the same result.

What do you make of arch/parisc/lib/usercopy.c

unsigned long
__generic_copy_to_user(void *to, const void *from, unsigned long n)
{
        if (access_ok(VERIFY_WRITE, to, n)) {
                __flush_dcache_range((unsigned long)from, n);
                lcopy_to_user(to,from,n);
                __flush_dcache_range((unsigned long)to, n);
        }
        return 0;
}


Typically 'from' would be a kernel virtual address, and 'to' would
be a user virtual address, yes?  So, that is expecting __flush_dcache_range()
to know which space register to use.  But then sometimes these functions
for accessing user space are redirected at kernel space by set_fs().
In that case both addresses are kernel virtual addresses.

lcopy_to_user() claims to modify %sr1 to get the right space in %sr1,
based on a flag in the task struct.

See copy_strings_kernel() in fs/exec.c for an example of where
copy_from_user( is used to copy from kernel space.

Richard


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Subject: Re: [parisc-linux] 2.4.0-test6 lack of speed
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Xref: news.gmane.org gmane.linux.ports.parisc:7843

On Wed, Aug 30, 2000 at 01:17:52AM +0100, Matthew Wilcox wrote:
> Anyway, would either of Richard or Helge like to look over the lasi_82596
> driver and convert it to use the flush_kernel_dcache_range() interface
> or tell me why my code is no good and I suck?  Ditto the sim700 driver
> actually.  Are there any other drivers which have simply taken the
> lasi_82596 wback code and replicated it or are these the only two?

I'm not that happy with calling flush_kernel_dcache_range() from
drivers, when that function only exists on parisc.  Most archs define
dma_cache_wback/dma_cache_inv/dma_cache_wback_inv, which, from the
descriptions in asm-ia64/io.h seem to be just what lasi_82596 and
sim700 need.  The versions on parisc currently just flush_all_caches(),
but perhaps we should make all three call flush_kernel_dcache_range()?
I'll try that approach anyway.

Richard


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.0-test6 lack of speed
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On Wed, Aug 30, 2000 at 11:15:23AM +0100, Richard Hirst wrote:
> What do you make of arch/parisc/lib/usercopy.c
> 
> unsigned long
> __generic_copy_to_user(void *to, const void *from, unsigned long n)
> {
>         if (access_ok(VERIFY_WRITE, to, n)) {
>                 __flush_dcache_range((unsigned long)from, n);
>                 lcopy_to_user(to,from,n);
>                 __flush_dcache_range((unsigned long)to, n);
>         }
>         return 0;
> }
> 
> Typically 'from' would be a kernel virtual address, and 'to' would
> be a user virtual address, yes?  So, that is expecting __flush_dcache_range()
> to know which space register to use.  But then sometimes these functions
> for accessing user space are redirected at kernel space by set_fs().
> In that case both addresses are kernel virtual addresses.

Right.  But I don't see why we need to flush any caches at all here.
We're not changing any mappings, we're accessing through a fixed space
register, there's no other device involved, if there were another CPU
involved then it would be cache-coherent _anyway_ -- what's the problem?


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From: Paul Wouters <paul@xtdnet.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Q: What kind of RAM does a HP 9000 E35 (800 series) need?
Date: Wed, 30 Aug 2000 16:46:13 +0200 (MET DST)
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Can anyone tell me what kind of RAM (and what minimum number of modules) an
HP9000 E35 needs? Also, what does it need to run Linux comfortable (without X)

Paul
-- 
"release early, release often". Applicable in multiple situations. ;)

			--- Arthur van Leeuwen (not talking about software)



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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Q: What kind of RAM does a HP 9000 E35 (800 series) need?
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On Wed, Aug 30, 2000 at 04:46:13PM +0200, Paul Wouters wrote:
> Can anyone tell me what kind of RAM (and what minimum number of modules) an
> HP9000 E35 needs? Also, what does it need to run Linux comfortable (without X)

<quote>

The earliest PA-RISC servers have proprietary HP devices attached to
proprietary HP bus architectures. It is unlikely that documentation
on these busses and devices will ever become available, since so few
people are interested in spending any effort finding and releasing the
docs. Machines in this category are the E, F, G, H, I class (aka Nova)
and T500 series (Emerald) machines as well as some earlier, unlettered
servers.

</quote>

-- 
Revolutions do not require corporate support.


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From: Ed June <buggz@america.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [hppa-linux] bubsy on the list ?
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>

bubsy,

You were correct.
IPL seems to come from the boot device.
I was going on my corrupt memory.
I just tried it on my 715, and, it looks for IPL on the boot device.
Sorry...

--

 Ed June

 buggz@america.net
 Linux: An open choice for free people worldwide.




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From: Andrew Park <apark@cdf.toronto.edu>
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Subject: Re: [parisc-linux] still cannot boot.
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To: Kirk Bresniker <kirkb@chrome.rose.hp.com>
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On Tue, 29 Aug 2000, Kirk Bresniker wrote:

> | 
> | > 
> | > Andrew Park writes...
> | > 
> | > > I must be missing something...
> | > > I got a bootable HP-UX installation CD today, so I popped it in my CDROM
> | > > and on the BOOT_ADMIN> prompt I typed, boot lan isl.  It still gets
> | > > stuck, then I changed the path, so that cdrom is primary and the LAN is
> | > > secondary, then typed  boot pri isl, and it comes right back to the
> | > > BOOT_ADMIN> prompt.  Am I missing something obvious?
> | > 
> 
> Em, if you're trying to boot from your CD-ROM, why are you typing
> a command to attempt a lan boot?  Don't you want to do the following:
> 
> BOOT_ADMIN> boot scsi[some address stuff] isl ?

I mentioned that I tried

	boot pri isl

After making CD-ROM as primary boot.  It would not take me anywhere.
I just tried all combination of things when everything failed.
Thanks


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------


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From: Paul Bame <bame@noam.fc.hp.com>
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Subject: Re: [parisc-linux] still cannot boot.
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= 
= I mentioned that I tried
= 
= 	boot pri isl
= 
= After making CD-ROM as primary boot.  It would not take me anywhere.
= I just tried all combination of things when everything failed.
= Thanks

Not enough information to help -- no specific error messages, no
specific commands you typed with numbers (LAN IDs or SCSI addresses)
in them.  Please send the output of:

    sea scsi
    path

And the error when you do 'boot pri isl' and it fails.

	-P


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] still cannot boot.
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On Wed, Aug 30, 2000 at 09:58:21AM -0600, Paul Bame wrote:
> Not enough information to help -- no specific error messages, no
> specific commands you typed with numbers (LAN IDs or SCSI addresses)
> in them.  Please send the output of:
> 
>     sea scsi
>     path
> 
> And the error when you do 'boot pri isl' and it fails.

i'm wondering if the problem is that the scsi cdrom he has won't support
512-byte sector mode, only 2048-byte sectors.  iirc, HPs won't boot off
all CD-ROM rives for this reason.

-- 
Revolutions do not require corporate support.


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From: Andrew Park <apark@cdf.toronto.edu>
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Subject: Re: [parisc-linux] still cannot boot.
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On Wed, 30 Aug 2000, Paul Bame wrote:

> Not enough information to help -- no specific error messages, no
> specific commands you typed with numbers (LAN IDs or SCSI addresses)
> in them.  Please send the output of:
> 
>     sea scsi
>     path
> 
> And the error when you do 'boot pri isl' and it fails.

search scsi yields

	scsi.5.0	NEC CD-ROM DRIVE:501
	scsi.3.0	MAXTOR LXT-2135 SUN0207

I change 'path' around a bit (when I did 'boot pri isl', primary
boot path was set at scsi.5.0), but at the moment it's

	Primary boot path:	lan.000000-000000.0.0
	Alternate boot path:	scsi.5.0

There are no error messages produced.  It just comes right back to
BOOT_ADMIN> prompt.
Thanks


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------


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From: Andrew Park <apark@cdf.toronto.edu>
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Subject: Re: [parisc-linux] still cannot boot.
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On Wed, 30 Aug 2000, Matthew Wilcox wrote:

> On Wed, Aug 30, 2000 at 09:58:21AM -0600, Paul Bame wrote:
> > Not enough information to help -- no specific error messages, no
> > specific commands you typed with numbers (LAN IDs or SCSI addresses)
> > in them.  Please send the output of:
> > 
> >     sea scsi
> >     path
> > 
> > And the error when you do 'boot pri isl' and it fails.
> 
> i'm wondering if the problem is that the scsi cdrom he has won't support
> 512-byte sector mode, only 2048-byte sectors.  iirc, HPs won't boot off
> all CD-ROM rives for this reason.

hmm... I should find out.  I do not have the manual to confirm, but
I probably should be able to get a spec from the web.
Thanks for the hint.


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] Au revoir
Date: Wed, 30 Aug 2000 23:07:46 +0100
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As some of you may have heard, I'm leaving Linuxcare.  My last day of
employment is tomorrow.  I'm then taking a 1 month holiday and will be
completely unreachable.  I won't be dropping out of the project entirely,
but I probably will be taking a less active role.  Have fun, I've enjoyed
working with you all.

-- 
Revolutions do not require corporate support.


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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] cache flushing across the universe
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this is a document davem wrote which is in 2.4.0-test8-pre1.  i'm posting
it here so you don't need to grab pre-patches and extract the doc from it.

		Cache and TLB Flushing
		     Under Linux

	    David S. Miller <davem@redhat.com>

This document describes the cache/tlb flushing interfaces called
by the Linux VM subsystem.  It enumerates over each interface,
describes it's intended purpose, and what side effect is expected
after the interface is invoked.

The side effects described below are stated for a uniprocessor
implementation, and what is to happen on that single processor.  The
SMP cases are a simple extension, in that you just extend the
definition such that the side effect for a particular interface occurs
on all processors in the system.  Don't let this scare you into
thinking SMP cache/tlb flushing must be so inefficient, this is in
fact an area where many optimizations are possible.  For example,
if it can be proven that a user address space has never executed
on a cpu (see vma->cpu_vm_mask), one need not perform a flush
for this address space on that cpu.

First, the TLB flushing interfaces, since they are the simplest.  The
"TLB" is abstracted under Linux as something the cpu uses to cache
virtual-->physical address translations obtained from the software
page tables.  Meaning that if the software page tables change, it is
possible for stale translations to exist in this "TLB" cache.
Therefore when software page table changes occur, the kernel will
invoke one of the following flush methods _after_ the page table
changes occur:

1) void flush_tlb_all(void)

	The most severe flush of all.  After this interface runs,
	any previous page table modification whatsoever will be
	visible to the cpu.

	This is usually invoked when the kernel page tables are
	changed, since such translations are "global" in nature.

2) void flush_tlb_mm(struct mm_struct *mm)

	This interface flushes an entire user address space from
	the TLB.  After running, this interface must make sure that
	any previous page table modifications for the address space
	'mm' will be visible to the cpu.  That is, after running,
	there will be no entries in the TLB for 'mm'.

	This interface is used to handle whole address space
	page table operations such as what happens during
	fork, exit, and exec.

3) void flush_tlb_range(struct mm_struct *mm,
			unsigned long start, unsigned long end)

	Here we are flushing a specific range of (user) virtual
	address translations from the TLB.  After running, this
	interface must make sure that any previous page table
	modifications for the address space 'mm' in the range 'start'
	to 'end' will be visible to the cpu.  That is, after running,
	there will be no entries in the TLB for 'mm' for virtual
	addresses in the range 'start' to 'end'.

	Primarily, this is used for munmap() type operations.

	The interface is provided in hopes that the port can find
	a suitably efficient method for removing multiple page
	sized translations from the TLB, instead of having the kernel
	call flush_tlb_page (see below) for each entry which may be
	modified.

4) void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)

	This time we need to remove the PAGE_SIZE sized translation
	from the TLB.  The 'vma' is the backing structure used by
	Linux to keep track of mmap'd regions for a process, the
	address space is available via vma->vm_mm.  Also, one may
	test (vma->vm_flags & VM_EXEC) to see if this region is
	executable (and thus could be in the 'instruction TLB' in
	split-tlb type setups).

	After running, this interface must make sure that any previous
	page table modification for address space 'vma->vm_mm' for
	user virtual address 'page' will be visible to the cpu.  That
	is, after running, there will be no entries in the TLB for
	'vma->vm_mm' for virtual address 'page'.

	This is used primarily during fault processing.

5) void flush_tlb_pgtables(struct mm_struct *mm,
			   unsigned long start, unsigned long end)

   The software page tables for address space 'mm' for virtual
   addresses in the range 'start' to 'end' are being torn down.

   Some platforms cache the lowest level of the software page tables
   in a linear virtually mapped array, to make TLB miss processing
   more efficient.  On such platforms, since the TLB is caching the
   software page table structure, it needs to be flushed when parts
   of the software page table tree are unlinked/freed.

   Sparc64 is one example of a platform which does this.

   Usually, when munmap()'ing an area of user virtual address
   space, the kernel leaves the page table parts around and just
   marks the individual pte's as invalid.  However, if very large
   portions of the address space are unmapped, the kernel frees up
   those portions of the software page tables to prevent potential
   excessive kernel memory usage caused by erratic mmap/mmunmap
   sequences.  It is at these times that flush_tlb_pgtables will
   be invoked.

6) void update_mmu_cache(struct vm_area_struct *vma,
			 unsigned long address, pte_t pte)

	At the end of every page fault, this routine is invoked to
	tell the architecture specific code that a translation
	described by "pte" now exists at virtual address "address"
	for address space "vma->vm_mm", in the software page tables.

	A port may use this information in any way it so chooses.
	For example, it could use this event to pre-load TLB
	translations for software managed TLB configurations.
	The sparc64 port currently does this.

Next, we have the cache flushing interfaces.  In general, when Linux
is changing an existing virtual-->physical mapping to a new value,
the sequence will be in one of the following forms:

	1) flush_cache_mm(mm);
	   change_all_page_tables_of(mm);
	   flush_tlb_mm(mm);

	2) flush_cache_range(mm, start, end);
	   change_range_of_page_tables(mm, start, end);
	   flush_tlb_range(mm, start, end);

	3) flush_cache_page(vma, page);
	   set_pte(pte_pointer, new_pte_val);
	   flush_tlb_page(vma, page);

The cache level flush will always be first, because this allows
us to properly handle systems whose caches are strict and require
a virtual-->physical translation to exist for a virtual address
when that virtual address is flushed from the cache.  The HyperSparc
cpu is one such cpu with this attribute.

The cache flushing routines below need only deal with cache flushing
to the extent that it is necessary for a particular cpu.  Mostly,
these routines must be implemented for cpus which have virtually
indexed caches which must be flushed when virtual-->physical
translations are changed or removed.  So, for example, the physically
indexed physically tagged caches of IA32 processors have no need to
implement these interfaces since the caches are fully synchronized
and have no dependency on translation information.

Here are the routines, one by one:

1) void flush_cache_all(void)

	The most severe flush of all.  After this interface runs,
	the entire cpu cache is flushed.

	This is usually invoked when the kernel page tables are
	changed, since such translations are "global" in nature.

2) void flush_cache_mm(struct mm_struct *mm)

	This interface flushes an entire user address space from
	the caches.  That is, after running, there will be no cache
	lines assosciated with 'mm'.

	This interface is used to handle whole address space
	page table operations such as what happens during
	fork, exit, and exec.

3) void flush_cache_range(struct mm_struct *mm,
			  unsigned long start, unsigned long end)

	Here we are flushing a specific range of (user) virtual
	addresses from the cache.  After running, there will be no
	entries in the cache for 'mm' for virtual addresses in the
	range 'start' to 'end'.

	Primarily, this is used for munmap() type operations.

	The interface is provided in hopes that the port can find
	a suitably efficient method for removing multiple page
	sized regions from the cache, instead of having the kernel
	call flush_cache_page (see below) for each entry which may be
	modified.

4) void flush_cache_page(struct vm_area_struct *vma, unsigned long page)

	This time we need to remove a PAGE_SIZE sized range
	from the cache.  The 'vma' is the backing structure used by
	Linux to keep track of mmap'd regions for a process, the
	address space is available via vma->vm_mm.  Also, one may
	test (vma->vm_flags & VM_EXEC) to see if this region is
	executable (and thus could be in the 'instruction cache' in
	"Harvard" type cache layouts).

	After running, there will be no entries in the cache for
	'vma->vm_mm' for virtual address 'page'.

	This is used primarily during fault processing.

There exists another whole class of cpu cache issues which currently
require a whole different set of interfaces to handle properly.
The biggest problem is that of virtual aliasing in the data cache
of a processor.

Is your port subsceptible to virtual aliasing in it's D-cache?
Well, if your D-cache is virtually indexed, is larger in size than
PAGE_SIZE, and does not prevent multiple cache lines for the same
physical address from existing at once, you have this problem.

If your D-cache has this problem, first define asm/shmparam.h SHMLBA
properly, it should essentially be the size of your virtually
addressed D-cache (or if the size is variable, the largest possible
size).  This setting will force the SYSv IPC layer to only allow user
processes to mmap shared memory at address which are a multiple of
this value.

Next, you have two methods to solve the D-cache aliasing issue for all
other cases.  Please keep in mind that fact that, for a given page
mapped into some user address space, there is always at least one more
mapping, that of the kernel in it's linear mapping starting at
PAGE_OFFSET.  So immediately, once the first user maps a given
physical page into it's address space, by implication the D-cache
aliasing problem has the potential to exist since the kernel already
maps this page at it's virtual address.

First, I describe the old method to deal with this problem.  I am
describing it for documentation purposes, but it is deprecated and the
latter method I describe next should be used by all new ports and all
existing ports should move over to the new mechanism as well.

  flush_page_to_ram(struct page *page)

	The physical page 'page' is about to be place into the
	user address space of a process.  If it is possible for
	stores done recently by the kernel into this physical
	page, to not be visible to an arbitray mapping in userspace,
	you must flush this page from the D-cache.

	If the D-cache is writeback in nature, the dirty data (if
	any) for this physical page must be written back to main
	memory before the cache lines are invalidated.

Admittedly, the author did not think very much when designing this
interface.  It does not give the architecture enough information about
what exactly is going on, and there is not context with which to base
any judgment about whether an alias is possible at all.  The new
interfaces to deal with D-cache aliasing are meant to address this by
telling the architecture specific code exactly which is going on at
the proper points in time.

Here is the new interface:

  void copy_user_page(void *from, void *to, unsigned long address)
  void clear_user_page(void *to, unsigned long address)

	These two routines store data in user anonymous or COW
	pages.  It allows a port to efficiently avoid D-cache alias
	issues between userspace and the kernel.

	For example, a port may temporarily map 'from' and 'to' to
	kernel virtual addresses during the copy.  The virtual address
	for these two pages is choosen in such a way that the kernel
	load/store instructions happen to virtual addresses which are
	of the same "color" as the user mapping of the page.  Sparc64
	for example, uses this technique.

	The "address" parameter tells the virtual address where the
	user has this page mapped.

	If D-cache aliasing is not an issue, these two routines may
	simply call memcpy/memset directly and do nothing more.

  void flush_dcache_page(struct page *page)

	Any time the kernel writes to a page cache page, _OR_
	the kernel is about to read from a page cache page and
	user space shared/writable mappings of this page potentially
	exist, this routine is called.

	The phrase "kernel writes to a page cache page" means,
	specifically, that the kernel executes store instructions
	that dirty data in that page at the page->virtual mapping
	of that page.  It is important to flush here to handle
	D-cache aliasing, to make sure these kernel stores are
	visible to user space mappings of that page.

	The corollary case is just as important, if there are users
	which have shared+writable mappings of this file, we must make
	sure that kernel reads of these pages will see the most recent
	stores done by the user.

	If D-cache aliasing is not an issue, this routine may
	simply be defined as a nop on that architecture.

        TODO: If we set aside a few bits in page->flags as
	      "architecture private", these interfaces could
	      be implemented much more efficiently.  This would
	      allow one to "defer" (perhaps indefinitely) the
	      actual flush if there are currently no user processes
	      mapping this page.

	      The idea is, first at flush_dcache_page() time, if
	      page->mapping->i_mmap is an empty list, just mark
	      one of the architecture private page flag bits.
              Later, in update_mmu_cache(), a check could be made
	      of this flag bit, and if set the flush is done
	      and the flag bit is cleared.

XXX Not documented: flush_icache_page(), need to talk to Paul
                    Mackerras, David Mosberger-Tang, et al.
		    to see what the expected semantics of this
		    interface are.  -DaveM

-- 
Revolutions do not require corporate support.


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Subject: [parisc-linux] FW: hpux 11.00 near success
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-----Original Message-----
From: SOETE Jol 
Sent: Thursday, August 31, 2000 6:57 PM
To: 'Grant Grundler'
Cc: parisc-linux@thepuffingroup.hp.com
Subject: hpux 11.00 near success


Dear Grant,

I have to modify as bellow the 'recipe' procedure to finally reach to build
successfully the tool chain
but I still met the following error at the very end of palo make:

....
cd palo && make
make[2]: Entering directory `/Tools/palo/palo'
hppa-linux-gcc -g -O -I../include -I../lib -I../../linux-2.3/include   -c -o
elf64.o ../lib/elf64.c
hppa-linux-gcc -g -O -I../include -I../lib -I../../linux-2.3/include   -c -o
load.o ../lib/load.c
hppa-linux-gcc -g -O -I../include -I../lib -I../../linux-2.3/include   -c -o
paloio.o paloio.c
hppa-linux-gcc -g -O -I../include -I../lib -I../../linux-2.3/include   -c -o
som.o ../lib/som.c
hppa-linux-gcc -g -O -I../include -I../lib -I../../linux-2.3/include   -c -o
elf32.o ../lib/elf32.c
In file included from /opt/puffin/hppa1.1-linux/include/stdio.h:40,
                 from ../lib/elf32.c:12:
/opt/puffin/hppa1.1-linux/include/bits/types.h:97:25: warning: "__NFDBITS"
redefined
../../linux-2.3/include/linux/posix_types.h:22:1: warning: this is the
location of the previous definition
/opt/puffin/hppa1.1-linux/include/bits/types.h:99:17: warning: "__FDMASK"
redefined
../../linux-2.3/include/linux/posix_types.h:34:1: warning: this is the
location of the previous definition
/opt/puffin/hppa1.1-linux/include/stdio.h:470: warning: redefinition of
`off_t'
../../linux-2.3/include/linux/types.h:18: warning: `off_t' previously
declared here
hppa-linux-gcc -g -O -I../include -I../lib -I../../linux-2.3/include   -c -o
error.o error.c
hppa-linux-gcc -g -O -I../include -I../lib -I../../linux-2.3/include   -c -o
palo.o palo.c
echo "char *bld_info = \"`whoami`@`hostname` `date`\";" > build.c
hppa-linux-gcc -g -O -I../include -I../lib -I../../linux-2.3/include -c -o
build.o build.c
rm -f build.c
hppa-linux-gcc -g -O -I../include -I../lib -I../../linux-2.3/include  -o
palo diskpart.o    elf64.o	    load.o	  paloio.o      som.o
elf32.o	      error.o	    palo.o build.o
/opt/puffin/lib/gcc-lib/hppa1.1-linux/2.96/../../../../hppa1.1-linux/bin/ld:
cannot open crt1.o: No such file or directory
collect2: ld returned 1 exit status
make[2]: *** [palo] Error 1
make[2]: Leaving directory `/Tools/palo/palo'
make[1]: *** [makepalo] Error 2
make[1]: Leaving directory `/Tools/palo'
make: *** [palo] Error 2

What are my mistakes (RAMDISK, ramdisk-sti, ... see below the procedure
followed)?

Thanks for help.
	Joel


PS: Does exist some archive of linuxcare mailing list about LINUX-PARISC?


Modified 'recipe' procedure hopping to be helpful

>From the Software Porting And Archive Centre for HP-UX in the United Kingdom
http://hpux.connect.org.uk/

I install following packages:
autoconf
bash
binutils
bison
bzip2
flex
gcc
m4
make
tar
unzip

adding relevant path PATH env

...

    3.Configure and build Binutils: 

       gzcat binutils-latest.tar.gz | tar -xf -
       mkdir binutils-build
*** confirm to make that c files are up to date
       find binutils -name "*.[ch]" -exec touch {} \;
***
       cd binutils-build
       ../binutils/configure \
           --target=hppa1.1-linux \
           --prefix=$DEST \
           --host=hppa-hpux\
           --disable-nls
       gmake
       gmake install
       cd ..


    4.Unpack the header files 

       gzcat include.tar.gz | tar -C $DEST -xf -

*** I do not remember why but it is useful
       cd $DEST/hppa1.1-linux
       ln -s ../include include


    5.Configure and build GCC: 

       gzcat gcc-latest.tar.gz | tar -xf -
       PATH=$DEST/bin:$PATH
*** Why as you just download the last cvs ?
#       cd gcc
#       ./contrib/gcc_update
#       cd ..

*** If previous step is not possible
       gzcat linux-latest.tar.gz | tar -xf -
       cd linux-2.3/includes
       ln -s asm-parisc asm
       cp -rp asm/* $DEST/include/asm
       cp -rp linux $DEST/include
       
       mkdir gcc-build
       cd gcc-build
       ../gcc/configure \
           --target=hppa1.1-linux \
           --prefix=$DEST \

*** I do have to change host option because 'hppa-hpux' is not "supported"
           --host=hppa1.1-hpux \
           --disable-nls \
           --enable-languages=c \
           --without-libc
       gmake LANGUAGES=c LIBGCC2_INCLUDES=-I$DEST/include
       gmake install
       cd ..

*** I had also adding symbolic links by following way:
       cd $DEST/bin
       LIST=`ls -dC1 hppa1.1*`
       for file in $LIST; do ln -s $file hppa-linux-${file##*-}; done
       cd -


    6.Unpack and configure the kernel: 

*** Not necessary: see previous step
#       gzcat linux-latest.tar.gz | tar -xf -
       cd linux-2.3
       gmake oldconfig
       gmake dep
       cd ..

    7.Build the kernel 

       gzcat palo-latest.tar.gz | tar -xf -


*** That do have to do the small following change in the palo/palo/Makefile
       CC=hppa-linux-gcc
       CFLAGS=-g -O -I../include -I../lib -I../../linux-2.3/include

*** Change palo/Makefile to RAMDISK instead of NFSROOT

*** And only for palo change call to hp make to gmake
       mv /usr/bin/make /usr/bin/make.hpux
       ln -s /opt/make/bin/gmake /opt/make/bin/make

       mv ramdisk20000530-sercon.tgz linux-2.3/
       cd linux-2.3

*** I do have to use the graphical consol
#       gzcat -c ramdisk20000530-sercon.tgz | tar xf -
       gzcat -c ramdisk20000530-sticon.tgz | tar xf -
       gmake palo
       cd ..

*** Not yet 

       The resulting kernel image is palo/lifimage. 

       NFS ROOT e-mail thread has additional info.




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Subject: Re: [parisc-linux] FW: hpux 11.00 near success
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On Thu, Aug 31, 2000 at 06:59:20PM +0200, SOETE Jol wrote:
> PS: Does exist some archive of linuxcare mailing list about LINUX-PARISC?

Yup, linked from the mailing list pages.

http://www.thepuffingroup.com/parisc/lists.html

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] FW: hpux 11.00 near success
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> hppa-linux-gcc -g -O -I../include -I../lib -I../../linux-2.3/include  -o
> palo diskpart.o    elf64.o	    load.o	  paloio.o      som.o
> elf32.o	      error.o	    palo.o build.o
> /opt/puffin/lib/gcc-lib/hppa1.1-linux/2.96/../../../../hppa1.1-linux/bin/ld:
> cannot open crt1.o: No such file or directory

I wonder why this isn't crt0.o?  The startup file is set by the specs file
in /opt/puffin/lib/gcc-lib/hppa1.1-linux/2.96.  It is also internal to
gcc.  The SPECS configuration files for the pa port are in config/pa.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Ed June <buggz@america.net>
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Subject: Re: [hppa-linux] bubsy on the list ?
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Is there a site w/ hp gnu utility binaries ?

Like the freesoftware site for solaris ?

--

 Ed June

 buggz@america.net
 Linux: An open choice for free people worldwide.




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             <200008311719.NAA26316@hiauly1.hia.nrc.ca> 
Xref: news.gmane.org gmane.linux.ports.parisc:7859

= > hppa-linux-gcc -g -O -I../include -I../lib -I../../linux-2.3/include  -o
= > palo diskpart.o    elf64.o	    load.o	  paloio.o      som.o
= > elf32.o	      error.o	    palo.o build.o
= > /opt/puffin/lib/gcc-lib/hppa1.1-linux/2.96/../../../../hppa1.1-linux/bin/ld
:
= > cannot open crt1.o: No such file or directory
= 
= I wonder why this isn't crt0.o?  The startup file is set by the specs file
= in /opt/puffin/lib/gcc-lib/hppa1.1-linux/2.96.  It is also internal to
= gcc.  The SPECS configuration files for the pa port are in config/pa.

I see two bizzare things.  The first is that 'hppa1.1-linux' is being
used, which is a very old convention.  The palo makefile hasn't asked
for that for a long time.

Secondly, the error suggests that an old tool chain,
or a new one built to the old recipe (without glibc etc...) is being used.

I recommend using a new tool chain.  Unfortunately we don't have
pre-compiled binaries for HPUX so you'll have to build it, which can
be VERY PAINFUL (be sure to get the LATEST version of GNU make).  The recipe
to use is in CVS under build-tools.  Make sure your palo bits are up
to date too...

Good luck!

	-P


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Subject: Re: HP PA-RISC support
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On Thu, Aug 31, 2000 at 09:07:10AM -0400, Albert E. Whale wrote:
> Matthew,
> 
> You may remeber me contacting you some time again regarding the D200
> Class Server I have at a customer Site.
> 
> I am interested in installint Linux on the Server.  Is this platform
> supportted? Is there a distribution for it?  If not, can I help promote
> and or Beta test the environment to gain acceptance?

Hi, Albert.

I'm just about to leave on holiday for a month, so you're lucky you
caught me :-)  Linux does indeed boot on the D200, and the Alpha release
CD which is on the ftp site will run.  I'm not sure which devices will
be supported by that kernel, but it should be able to bring you to a
shell prompt.  The port is still a couple of months away from being
stable, so it's not really suitable for installing at a customer site yet.

-- 
Revolutions do not require corporate support.


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From: Andrew Park <apark@cdf.toronto.edu>
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Subject: [parisc-linux] getting kernel to load so far...
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Just wanted to report my progress publicly.
Last posting to the list was about my SCSI CD-ROM not booting the 
HP-UX INSTALL CD.  Well, it turns out that NECs are in 2048 byte sector
mode whereas HP requires 512 byte mode.  SUNs and SGIs also require 512
byte sector mode.  So I just borrowed a SUN external CD-ROM and issued

	boot pri isl

at BOOT_ADMIN> prompt and it took me right into the ISL prompt.  There
I changed the conspath to serial console.  I did not have null modem
cable (9 to 9 female), but I had a DB25 male to DB25 male cable and
a couple of DB25 male to DB9 female converters.  So I patched them up
and wired two boxes.  I fired up minicom then parisc box, and minicom
just wouldn't show a thing.  After wasting two days on it, I went out
and bought *real* DB9 female to DB9 female serial cable.  I hooked
THAT up and minicom began showing things.

But now I have bigger (I think) problem.  The kernel loading still
gets stuck at pdc_cons die!!  This is displayed on the serial console.
Anybody out there running i386 linux box as NFSROOT and serial console
server, also running bootp with combination of tftp?  Could you please
let me know what the syslog says from the booting of parisc box to
its shell?
Thanks



Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------



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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PATCH: build gcc/gcc/depedence.c w/HPUX ANSI C
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Hi folks,
I work on the parisc-linux port and was trying to build binutils/gcc
on an HP-UX 11 system. HP-UX ansic didn't like enum direction_type[][]
or int[][] constructs.  It complained with:
cc: "/linux/pa32/gcc/gcc/dependence.c", line 199: error 1501: Only the first
	dimension of an array may be omitted.

I've been told GCC refuses to compile the same thing with:
	x.c:1: warning: array `i' assumed to have one element
	x.c:1: storage size of `i' isn't known

This is probably not exactly the right fix but at least I can
build a binary now. I haven't tested the resulting binary.

thanks,
grant

grundler <815>cvs diff gcc/gcc/dependence.c
Index: gcc/gcc/dependence.c
===================================================================
RCS file: /home/cvs/parisc/gcc/gcc/dependence.c,v
retrieving revision 1.1
diff -u -p -r1.1 dependence.c
--- dependence.c        2000/08/22 20:56:22     1.1
+++ dependence.c        2000/08/31 23:44:27
@@ -196,15 +196,15 @@ static int get_one_coefficient PARAMS ((
 static void normalize_coefficients PARAMS ((subscript[], loop*, int));
 static void classify_dependence PARAMS ((subscript[], subscript[],
                                 enum complexity_type[], int*, int));
-static void ziv_test PARAMS ((subscript[], subscript[], enum direction_type[][],
-                     int[][], loop*, int));
-static void siv_test PARAMS ((subscript[], subscript[], enum direction_type[][],
-                     int[][], loop*, int));
+static void ziv_test PARAMS ((subscript[], subscript[], enum direction_type[MAX_SUBSCRIPTS][MAX_SUBSCRIPTS],
+                     int[MAX_SUBSCRIPTS][MAX_SUBSCRIPTS], loop*, int));
+static void siv_test PARAMS ((subscript[], subscript[], enum direction_type[MAX_SUBSCRIPTS][MAX_SUBSCRIPTS],
+                     int[MAX_SUBSCRIPTS][MAX_SUBSCRIPTS], loop*, int));
 static int check_subscript_induction PARAMS ((subscript*, subscript*, loop*));
-static void gcd_test PARAMS ((subscript[], subscript[], enum direction_type[][],
-                     int[][], loop*, int));
+static void gcd_test PARAMS ((subscript[], subscript[], enum direction_type[MAX_SUBSCRIPTS][MAX_SUBSCRIPTS],
+                     int[MAX_SUBSCRIPTS][MAX_SUBSCRIPTS], loop*, int));
 static int find_gcd PARAMS ((int, int));
-static void merge_dependencies PARAMS ((enum direction_type[][], int[][], int, int));
+static void merge_dependencies PARAMS ((enum direction_type[MAX_SUBSCRIPTS][MAX_SUBSCRIPTS], int[MAX_SUBSCRIPTS][MAX_SUBSCRIPTS], int, int));
 static void dump_array_ref PARAMS ((tree));
 static void dump_one_node PARAMS ((def_use*, varray_type*));
 static void dump_node_dependence PARAMS ((void));



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Subject: Re: [parisc-linux] PATCH: build gcc/gcc/depedence.c w/HPUX ANSI C
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In-Reply-To: <200009010220.TAA20141@milano.cup.hp.com> from "Grant Grundler" at Aug 31, 2000 07:20:06 pm
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Xref: news.gmane.org gmane.linux.ports.parisc:7863

> Hi folks,
> I work on the parisc-linux port and was trying to build binutils/gcc
> on an HP-UX 11 system. HP-UX ansic didn't like enum direction_type[][]
> or int[][] constructs.  It complained with:
> cc: "/linux/pa32/gcc/gcc/dependence.c", line 199: error 1501: Only the first
> 	dimension of an array may be omitted.

I believe this was recently fixed in the mainline source:

2000-08-23  Alexandre Oliva  <aoliva@redhat.com>

        * dependence.c: Replace `[][]' with `[][MAX_SUBSCRIPTS]'.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi John,

> -----Original Message-----
> From: Paul Bame [mailto:bame@noam.fc.hp.com]
> Sent: Thursday, August 31, 2000 7:29 PM
> To: John David Anglin
> Cc: JSO@europay.com; parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] FW: hpux 11.00 near success 
> 
> 
> = > hppa-linux-gcc -g -O -I../include -I../lib 
> -I../../linux-2.3/include  -o
> = > palo diskpart.o    elf64.o	    load.o	  
> paloio.o      som.o
> = > elf32.o	      error.o	    palo.o build.o
> = > 
> /opt/puffin/lib/gcc-lib/hppa1.1-linux/2.96/../../../../hppa1.1
> -linux/bin/ld
> :
> = > cannot open crt1.o: No such file or directory
> = 
> = I wonder why this isn't crt0.o?  The startup file is set by 
> the specs file
> = in /opt/puffin/lib/gcc-lib/hppa1.1-linux/2.96.  It is also 
> internal to
> = gcc.  The SPECS configuration files for the pa port are in 
> config/pa.
> 
> I see two bizzare things.  The first is that 'hppa1.1-linux' is being

I also try to rebuild tool chain with host=hppa-hpux as recommended in the
recipe html page but it failed:
not supported platform ... ? But as I just read recipe.hpux (and
recipe.linux) I just note that host is not anymore specified. Is it perhaps
the mistake? I will advise asap.

> used, which is a very old convention.  The palo makefile hasn't asked
> for that for a long time.
> 
> Secondly, the error suggests that an old tool chain,
> or a new one built to the old recipe (without glibc etc...)
> is being used.

But glibc is not build with recipe.hpux neither recipe.linux also may I
assume that I have to use same configure options ?

> 
> I recommend using a new tool chain.  Unfortunately we don't have

The tool chain which I just reach to rebuild successfully was date 20000829
as well as palo?

> pre-compiled binaries for HPUX so you'll have to build it, which can

I would also prefer to work on a Linux box (that why I try to build it) but
it is too difficult to obtain it.
 
> be VERY PAINFUL (be sure to get the LATEST version of GNU 
> make).  The recipe

The GNU make release is 3.79. Is that exist a new one?

> to use is in CVS under build-tools.  Make sure your palo bits are up
> to date too...
> 
> Good luck!
> 
> 	-P
> 

Thank for advises,
	Joel


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: RE: [parisc-linux] FW: hpux 11.00 near success
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On Fri, 1 Sep 2000, [iso-8859-1] SOETE Jol wrote:

> The tool chain which I just reach to rebuild successfully was date 20000829
> as well as palo?

I broke the linker on 2000-08-27, in a way that might be affecting shared
library builds.  Your problems may be totally unrelated, but just in case,
I thought I'd better own up.  The linker should be fixed now.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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= 
= I also try to rebuild tool chain with host=hppa-hpux as recommended in the
= recipe html page but it failed:
= not supported platform ... ? But as I just read recipe.hpux (and
= recipe.linux) I just note that host is not anymore specified. Is it perhaps
= the mistake? I will advise asap.

You probably want target=hppa-linux and host=hppa1.1-hpux10 or something
like that.

= > I recommend using a new tool chain.  Unfortunately we don't have
= 
= The tool chain which I just reach to rebuild successfully was date 20000829
= as well as palo?

Ok, that probably means you need a full tool chain not just
the one described in the recipes.  x86 users should probably grab the tarball
ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20000829.tgz
because building the full tool chain is often difficult.

For hpux, start with the recipe in buildutils/palinux-autobuilder.
Be sure to change this line: '$host="i386-linux";' in the script.

	-P


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Oops in sim700.c on C360
Date: 01 Sep 2000 11:44:20 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:7867

Hi,

Booting on a C360 I get this oops:

Kernel Fault: Code=26 regs=c7f98900 (Addr=00000004)

PSW  : 0004ff0a  GR 1 : c0232800  GR 2 : c01dd3d0  GR 3 : ffd06100
GR 4 : c02ce070  GR 5 : 000002c6  GR 6 : c027b000  GR 7 : c7f8f2e0
GR 8 : c7f8f260  GR 9 : 00000216  GR10 : 00000000  GR11 : 0000000a
GR12 : ffffffff  GR13 : ffffffff  GR14 : c02cd800  GR15 : f0100000
GR16 : f00010bc  GR17 : f0000154  GR18 : f000014c  GR19 : 00000000
GR20 : 00000000  GR21 : 00000000  GR22 : 00000008  GR23 : c028ee80
GR24 : ffffffff  GR25 : 00008000  GR26 : 00000000  GR27 : c0276000
GR28 : c7f8f2e0  GR29 : ffd05800  GR30 : c7f98b40  GR31 : c01f2ed8
SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000

IASQ : 00000000 00000000 IAOQ : c01dd3dc c01dd3e0 ORIG_R28 : c027c7d4
 IIR : 0e681096 ISR : 00000000 IOR : 00000004

Which matches with this function:

c01dd340 T sim700_init_host

In the disassembly this is:

<sim700.c, line 1664>:

    host = scsi_register(tpnt, sizeof(struct sim700_hostdata));
    hostdata = (struct sim700_hostdata *)host->hostdata;
    memset(hostdata, 0, sizeof(struct sim700_hostdata));
    hostdata->targets = pci_alloc_consistent(NULL, PAGE_SIZE << 3, &dma_addr);
    4c6c:       2b 60 00 00     addil 0,dp,%r1
    4c70:       6b c3 3f 79     stw r3,-44(sr0,sp)
    4c74:       6b c5 3f 69     stw r5,-4c(sr0,sp)
    4c78:       08 19 02 45     copy r25,r5
    4c7c:       34 19 00 60     ldi 30,r25
    4c80:       6b ce 3f 21     stw r14,-70(sr0,sp)
    4c84:       6b ca 3f 41     stw r10,-60(sr0,sp)
    4c88:       08 01 02 4e     copy r1,r14
    4c8c:       6b c8 3f 51     stw r8,-58(sr0,sp)
    4c90:       6b c7 3f 59     stw r7,-54(sr0,sp)
    4c94:       6b cd 3f 29     stw r13,-6c(sr0,sp)
    4c98:       6b cc 3f 31     stw r12,-68(sr0,sp)
    4c9c:       6b cb 3f 39     stw r11,-64(sr0,sp)
    4ca0:       6b c6 3f 61     stw r6,-50(sr0,sp)
    4ca4:       6b c4 3f 71     stw r4,-48(sr0,sp)
    4ca8:       4a 83 00 00     ldw 0(sr0,r20),r3
    4cac:       4a 69 00 00     ldw 0(sr0,r19),r9
    4cb0:       90 60 30 00     cmpiclr,<> 0,r3,r0
    4cb4:       08 18 02 43     copy r24,r3
    4cb8:       91 20 30 00     cmpiclr,<> 0,r9,r0
    4cbc:       08 17 02 49     copy r23,r9
    4cc0:       e8 40 00 00     b,l 4cc8 <sim700_init_host+0x78>,rp
    4cc4:       4b ca 3e 99     ldw -b4(sr0,sp),r10
    4cc8:       08 1c 02 48     copy ret0,r8
    4ccc:       34 19 00 00     ldi 0,r25
    4cd0:       35 07 01 00     ldo 80(r8),r7
    4cd4:       34 18 00 60     ldi 30,r24
    4cd8:       e8 40 00 00     b,l 4ce0 <sim700_init_host+0x90>,rp
    4cdc:       08 07 02 5a     copy r7,r26
    4ce0:       49 d3 00 00     ldw 0(sr0,r14),r19
    4ce4:       34 1a 00 00     ldi 0,r26
    4ce8:       23 24 00 00     ldil 8000,r25
    4cec:       0e 68 10 96     ldw  4(sr0,r19),r22
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  This instruction here
    4cf0:       37 d8 3f 11     ldo -78(sp),r24
    4cf4:       e6 c0 20 00     be,l 0(sr4,r22),%sr0,%r31
    4cf8:       08 1f 02 42     copy r31,rp

Looks like pci_alloc_consistent is broken...

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Oops in sim700.c on C360
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Xref: news.gmane.org gmane.linux.ports.parisc:7868

On Fri, Sep 01, 2000 at 11:44:20AM -0400, David Huggins-Daines wrote:
> <sim700.c, line 1664>:
> 
>     host = scsi_register(tpnt, sizeof(struct sim700_hostdata));
>     hostdata = (struct sim700_hostdata *)host->hostdata;
>     memset(hostdata, 0, sizeof(struct sim700_hostdata));
>     hostdata->targets = pci_alloc_consistent(NULL, PAGE_SIZE << 3, &dma_addr);

pci_alloc_consistent is a macro which indirects via hppa_dma_ops.

>     4cd8:       e8 40 00 00     b,l 4ce0 <sim700_init_host+0x90>,rp
>     4cdc:       08 07 02 5a     copy r7,r26
>     4ce0:       49 d3 00 00     ldw 0(sr0,r14),r19
>     4ce4:       34 1a 00 00     ldi 0,r26
>     4ce8:       23 24 00 00     ldil 8000,r25
>     4cec:       0e 68 10 96     ldw  4(sr0,r19),r22
>                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  This instruction here
>     4cf0:       37 d8 3f 11     ldo -78(sp),r24
>     4cf4:       e6 c0 20 00     be,l 0(sr4,r22),%sr0,%r31
>     4cf8:       08 1f 02 42     copy r31,rp
> 
> Looks like pci_alloc_consistent is broken...

And that's clearly hppa_dma_ops being NULL.  Before I committed the
support for PCX-S,T machines, this was initialised to pa11_dma_ops
but I now leave it uninitialised.  If the CPU detection code detects a
PCX-L or PCX-L2 CPU then hppa_dma_ops gets initialised to pa11_dma_ops.
If it detects a PCX-S or PCX-T CPU then it initialises it to fail_dma_ops
(i think richard changed the name recently?).  The CCIO support and
the SBA/LBA support initialise hppa_dma_ops with their respective
support routines.  So I deduce that the CCIO support hasn't recognised
your machine.  Perhaps we should initialise it to a routine which prints
that the PCI ops haven't been initialised and halts.

-- 
Revolutions do not require corporate support.


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From: Tomasz Korycki <tkorycki@sprint.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] bubsy on the list ?
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At 22:25 99-03-27 -0500, you wrote:
>Is there a site w/ hp gnu utility binaries ?
>
>Like the freesoftware site for solaris ?
>
>--

Try this:
http://hpux.ee.ualberta.ca/


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Oops in sim700.c on C360
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To: Matthew Wilcox <matthew@wil.cx>
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Xref: news.gmane.org gmane.linux.ports.parisc:7870

On Fri, Sep 01, 2000 at 05:12:33PM +0100, Matthew Wilcox wrote:
> And that's clearly hppa_dma_ops being NULL.  Before I committed the
> support for PCX-S,T machines, this was initialised to pa11_dma_ops
> but I now leave it uninitialised.  If the CPU detection code detects a
> PCX-L or PCX-L2 CPU then hppa_dma_ops gets initialised to pa11_dma_ops.
> If it detects a PCX-S or PCX-T CPU then it initialises it to fail_dma_ops
> (i think richard changed the name recently?).  The CCIO support and
> the SBA/LBA support initialise hppa_dma_ops with their respective
> support routines.  So I deduce that the CCIO support hasn't recognised
> your machine.  Perhaps we should initialise it to a routine which prints
> that the PCI ops haven't been initialised and halts.


        switch (boot_cpu_data.cpu_type) {
        case pcx:
        case pcxs:
        case pcxt:
                hppa_dma_ops = &pcx_dma_ops;
                break;
        case pcxl2:
                pa7300lc_init();
        case pcxl: /* falls through */
                hppa_dma_ops = &pcxl_dma_ops;
                break;
        default:
                break;
        }

I changed fail_dma_ops to pcx_dma_ops because the only difference between
the two sets of machines is that pci_alloc_consistent fails on pcx.  The
other functions referenced by hppa_dma_ops are still valid (pci_map_single,
for example), and are used in sim700 and lasi_82596.

Richard


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] FW: hpux 11.00 near success
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=?iso-8859-1?Q?SOETE_Jo=EBl?= wrote:
> But as I just read recipe.hpux (and recipe.linux)
> I just note that host is not anymore specified.
> Is it perhaps the mistake? I will advise asap.

Joel,
I committed those scripts to the CVS build-tools repository to make
them available and not becuase I think they are perfectly correct.

> But glibc is not build with recipe.hpux neither recipe.linux also may I
> assume that I have to use same configure options ?

That's why recipe.linux is deprecated in favor of palinux-autobuilder.
The xenv gcc/binutils don't need glibc - only if you want to build
parisc-linux native toolchain or apps.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:13:21 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Oops in sim700.c on C360
Date: Fri, 01 Sep 2000 09:46:27 -0700
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Cc: David Huggins-Daines <dhd@linuxcare.com>, parisc-linux@thepuffingroup.com
To: Matthew Wilcox <matthew@wil.cx>
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Matthew Wilcox wrote:
> So I deduce that the CCIO support hasn't recognised
> your machine.  Perhaps we should initialise it to a routine which prints
> that the PCI ops haven't been initialised and halts.

It did "halt". ;^)

pci_dma_supported() is supposed to be called first by all drivers wishing
to use Dynamic DMA interfaces. I'm thinking a test in pci_dma_supported()
macro could oops nicely if hppa_dma_ops isn't set.

For "devices" which aren't claimed (eg CCIO), we need to make sure
the HVERS/SVERS values are make available to the device maintainer.
I'll poke dhd offline in this case.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:13:21 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Branching "stable" 2.3.99pre8 kernel
Date: 01 Sep 2000 15:41:55 -0400
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Hi,

As some people have probably heard me say in person, the current head
branch of the kernel CVS tree is a substantial step backwards in speed
and now stability from 2.3.99pre8, and is not really usable for me to
do any user-space work on.

My 2.3.99pre8 tree (see below) crashes *repeatably* and
*deterministically* (with the exception of NFS which is basically crap
anyway), and therefore I'm fixing them as I find them.  In contrast,
what we've got at the head of our CVS crashes *randomly* on my A180
and will not stay up long enough to run the configure script of any of
the programs I have successfully built natively on 2.3.99pre8.

I don't know whether this is because 2.4.0test5 is broken upstream, or
whether we screwed up the merge, but it is simply unusable for my
purposes.

Therefore, until it gets fixed, I am using a hacked-up combination of
the pre-merge 2.3.99pre8 and updated signal and trap handling code.  I
would like to tag this as a branch in CVS so that I can continue to
fix kernel bugs that affect me without having to fully update to 2.4.0.

Will people mind terribly if I do this?  It should be trivial to merge
changes from the branch as needed.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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David Huggins-Daines wrote:
...
> Therefore, until it gets fixed, I am using a hacked-up combination of
> the pre-merge 2.3.99pre8 and updated signal and trap handling code.  I
> would like to tag this as a branch in CVS so that I can continue to
> fix kernel bugs that affect me without having to fully update to 2.4.0.
> 
> Will people mind terribly if I do this?  It should be trivial to merge
> changes from the branch as needed.

David,

I don't mind...I just don't want the fixes you make there get lost.
Please either post the fixes to the list or sign-up a maintainer (like
myself) to merge fixes into the 2.4.0-test6 based branch ("mainline").
I'd be happy to merge the few parts I understand/have clue about for you.

thanks,
grant


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From: Andrew Park <apark@cdf.toronto.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] /sbin/init source
Date: Fri, 1 Sep 2000 17:43:08 -0400 (EDT)
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Does anybody have source code to /sbin/init which is included in
nfsroot-20000804.tgz?
Thanks


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------



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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Branching "stable" 2.3.99pre8 kernel
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Grant Grundler <grundler@cup.hp.com> writes:

> David,
> 
> I don't mind...I just don't want the fixes you make there get lost.
> Please either post the fixes to the list or sign-up a maintainer (like
> myself) to merge fixes into the 2.4.0-test6 based branch ("mainline").
> I'd be happy to merge the few parts I understand/have clue about for you.

The branch tag is STABLE_2_3_99PRE8.  I've put one "fix" (really just
a workaround for some total stupidity that is hopefully a bit less
stupid) in there already, but I don't know if it's worth merging since
with any luck our userland memory management will be fixed for real
soon.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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-------- Original Message --------
Subject: 2.4.0 do_fork() change, all architectures
Resent-Date: Sat, 2 Sep 2000 03:28:27 +0200 (MET DST)
Resent-From: linux-m68k@phil.uni-sb.de
Date: Sat, 02 Sep 2000 12:27:23 +1100
From: Keith Owens <kaos@ocs.com.au>
To: linux-arm-kernel@lists.arm.linux.org.uk,
linux-m68k@lists.linux-m68k.org,linux-mac68k@mac.linux-m68k.org,
linuxppc-dev@lists.linuxppc.org,linux-mips@fnet.fr,
sparclinux@vger.kernel.org,ultralinux@vger.kernel.org,
linux-alpha@vger.kernel.org,linux-kernel@vger.kernel.org,
linux-ia64@linuxia64.org,linux-vm@vm.marist.edu, gniibe@chroot.org,
kkojima@rr.iij4u.or.jp

This patch hits every arch so it is being cross mailed to every arch
mailing list, apologies for duplicates.  Please trim replies to the
relevant mailing list.  Also please cc: kaos@ocs.com.au on replies, I
am not on every list.

IA64 needs an extra parameter on do_fork() and copy_thread(), those
functions are globally defined but arch local so there are changes to
every architecture.  For everything except IA64, the extra parameter is
unused and is specified as 0.  Sparc assembler changes by DaveM, blame
me for everything else.  If nobody complains, this patch against
2.4.0-test8-pre1 will go to Linus on Monday evening GMT.

Index: 0-test8-pre1.1/kernel/fork.c
--- 0-test8-pre1.1/kernel/fork.c Tue, 29 Aug 2000 15:22:12 +1100 kaos
(linux-2.4/j/35_fork.c 1.1.1.9.1.6 644)
+++ 0-test8-pre1.1(w)/kernel/fork.c Sat, 02 Sep 2000 11:34:02 +1100 kaos
(linux-2.4/j/35_fork.c 1.1.1.9.1.6 644)
@@ -528,10 +528,15 @@
 
 /*
  *  Ok, this is the main fork-routine. It copies the system process
- * information (task[nr]) and sets up the necessary registers. It
- * also copies the data segment in its entirety.
+ * information (task[nr]) and sets up the necessary registers. It also
+ * copies the data segment in its entirety.  The "stack_start" and
+ * "stack_top" arguments are simply passed along to the platform
+ * specific copy_thread() routine.  Most platforms ignore stack_top.
+ * For an example that's using stack_top, see
+ * arch/ia64/kernel/process.c.
  */
-int do_fork(unsigned long clone_flags, unsigned long usp, struct
pt_regs *regs)
+int do_fork(unsigned long clone_flags, unsigned long stack_start,
unsigned long stack_top,
+	    struct pt_regs *regs)
 {
 	int retval = -ENOMEM;
 	struct task_struct *p;
@@ -628,7 +633,7 @@
 		goto bad_fork_cleanup_fs;
 	if (copy_mm(clone_flags, p))
 		goto bad_fork_cleanup_sighand;
-	retval = copy_thread(0, clone_flags, usp, p, regs);
+	retval = copy_thread(0, clone_flags, stack_start, stack_top, p, regs);
 	if (retval)
 		goto bad_fork_cleanup_sighand;
 	p->semundo = NULL;
Index: 0-test8-pre1.1/include/linux/sched.h
--- 0-test8-pre1.1/include/linux/sched.h Tue, 29 Aug 2000 15:22:12 +1100
kaos (linux-2.4/Z/49_sched.h 1.1.1.7.1.3 644)
+++ 0-test8-pre1.1(w)/include/linux/sched.h Sat, 02 Sep 2000 11:45:41
+1100 kaos (linux-2.4/Z/49_sched.h 1.1.1.7.1.3 644)
@@ -708,7 +708,7 @@
 extern int expand_fdset(struct files_struct *, int nr);
 extern void free_fdset(fd_set *, int);
 
-extern int  copy_thread(int, unsigned long, unsigned long, struct
task_struct *, struct pt_regs *);
+extern int  copy_thread(int, unsigned long, unsigned long, unsigned
long, struct task_struct *, struct pt_regs *);
 extern void flush_thread(void);
 extern void exit_thread(void);
 
@@ -719,7 +719,7 @@
 extern void daemonize(void);
 
 extern int do_execve(char *, char **, char **, struct pt_regs *);
-extern int do_fork(unsigned long, unsigned long, struct pt_regs *);
+extern int do_fork(unsigned long, unsigned long, unsigned long, struct
pt_regs *);
 
 extern void FASTCALL(add_wait_queue(wait_queue_head_t *q, wait_queue_t
* wait));
 extern void FASTCALL(add_wait_queue_exclusive(wait_queue_head_t *q,
wait_queue_t * wait));
Index: 0-test8-pre1.1/arch/s390/kernel/smp.c
--- 0-test8-pre1.1/arch/s390/kernel/smp.c Tue, 11 Jul 2000 11:25:12
+1000 kaos (linux-2.4/Y/b/24_smp.c 1.2 644)
+++ 0-test8-pre1.1(w)/arch/s390/kernel/smp.c Sat, 02 Sep 2000 11:30:29
+1100 kaos (linux-2.4/Y/b/24_smp.c 1.2 644)
@@ -528,7 +528,7 @@
        /* don't care about the psw and regs settings since we'll never
           reschedule the forked task. */
        memset(&regs,sizeof(pt_regs),0);
-       return do_fork(CLONE_VM|CLONE_PID, 0, &regs);
+       return do_fork(CLONE_VM|CLONE_PID, 0, 0, &regs);
 }
 
 static void __init do_boot_cpu(int cpu)
Index: 0-test8-pre1.1/arch/s390/kernel/process.c
--- 0-test8-pre1.1/arch/s390/kernel/process.c Sat, 05 Aug 2000 13:33:35
+1000 kaos (linux-2.4/Y/b/35_process.c 1.2.1.1 644)
+++ 0-test8-pre1.1(w)/arch/s390/kernel/process.c Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/Y/b/35_process.c 1.2.1.1 644)
@@ -264,6 +264,7 @@
 }
 
 int copy_thread(int nr, unsigned long clone_flags, unsigned long
new_stackp,
+	unsigned long unused,
         struct task_struct * p, struct pt_regs * regs)
 {
         struct stack_frame
@@ -313,7 +314,7 @@
         int ret;
 
         lock_kernel();
-        ret = do_fork(SIGCHLD, regs.gprs[15], &regs);
+        ret = do_fork(SIGCHLD, regs.gprs[15], 0, &regs);
         unlock_kernel();
         return ret;
 }
@@ -329,7 +330,7 @@
         newsp = regs.gprs[2];
         if (!newsp)
                 newsp = regs.gprs[15];
-        ret = do_fork(clone_flags, newsp, &regs);
+        ret = do_fork(clone_flags, newsp, 0, &regs);
         unlock_kernel();
         return ret;
 }
@@ -347,7 +348,7 @@
 asmlinkage int sys_vfork(struct pt_regs regs)
 {
 	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
-                       regs.gprs[15], &regs);
+                       regs.gprs[15], 0, &regs);
 }
 
 /*
Index: 0-test8-pre1.1/arch/mips64/kernel/syscall.c
--- 0-test8-pre1.1/arch/mips64/kernel/syscall.c Tue, 01 Aug 2000
16:55:46 +1000 kaos (linux-2.4/a/c/16_syscall.c 1.1.1.4 644)
+++ 0-test8-pre1.1(w)/arch/mips64/kernel/syscall.c Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/a/c/16_syscall.c 1.1.1.4 644)
@@ -77,7 +77,7 @@
 	int res;
 
 	save_static(&regs);
-	res = do_fork(SIGCHLD, regs.regs[29], &regs);
+	res = do_fork(SIGCHLD, regs.regs[29], 0, &regs);
 	return res;
 }
 
@@ -92,7 +92,7 @@
 	newsp = regs.regs[5];
 	if (!newsp)
 		newsp = regs.regs[29];
-	res = do_fork(clone_flags, newsp, &regs);
+	res = do_fork(clone_flags, newsp, 0, &regs);
 	return res;
 }
 
Index: 0-test8-pre1.1/arch/mips64/kernel/process.c
--- 0-test8-pre1.1/arch/mips64/kernel/process.c Thu, 13 Jul 2000
18:35:31 +1000 kaos (linux-2.4/a/c/31_process.c 1.5 644)
+++ 0-test8-pre1.1(w)/arch/mips64/kernel/process.c Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/a/c/31_process.c 1.5 644)
@@ -69,6 +69,7 @@
 }
 
 int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+		 unsigned long unused,
                  struct task_struct * p, struct pt_regs * regs)
 {
 	struct pt_regs * childregs;
Index: 0-test8-pre1.1/arch/sh/kernel/process.c
--- 0-test8-pre1.1/arch/sh/kernel/process.c Sat, 22 Jul 2000 18:25:55
+1000 kaos (linux-2.4/d/c/21_process.c 1.1.1.3 644)
+++ 0-test8-pre1.1(w)/arch/sh/kernel/process.c Sat, 02 Sep 2000 11:30:29
+1100 kaos (linux-2.4/d/c/21_process.c 1.1.1.3 644)
@@ -211,6 +211,7 @@
 asmlinkage void ret_from_fork(void);
 
 int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+		unsigned long unused,
 		struct task_struct *p, struct pt_regs *regs)
 {
 	struct pt_regs *childregs;
@@ -292,7 +293,7 @@
 			unsigned long r6, unsigned long r7,
 			struct pt_regs regs)
 {
-	return do_fork(SIGCHLD, regs.regs[15], &regs);
+	return do_fork(SIGCHLD, regs.regs[15], 0, &regs);
 }
 
 asmlinkage int sys_clone(unsigned long clone_flags, unsigned long
newsp,
@@ -301,7 +302,7 @@
 {
 	if (!newsp)
 		newsp = regs.regs[15];
-	return do_fork(clone_flags, newsp, &regs);
+	return do_fork(clone_flags, newsp, 0, &regs);
 }
 
 /*
@@ -318,7 +319,7 @@
 			 unsigned long r6, unsigned long r7,
 			 struct pt_regs regs)
 {
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs.regs[15],
&regs);
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs.regs[15], 0,
&regs);
 }
 
 /*
Index: 0-test8-pre1.1/arch/arm/kernel/process.c
--- 0-test8-pre1.1/arch/arm/kernel/process.c Tue, 15 Aug 2000 17:59:12
+1000 kaos (linux-2.4/f/c/43_process.c 1.1.1.5 644)
+++ 0-test8-pre1.1(w)/arch/arm/kernel/process.c Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/f/c/43_process.c 1.1.1.5 644)
@@ -291,6 +291,7 @@
 }
 
 int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
+	unsigned long unused,
 	struct task_struct * p, struct pt_regs * regs)
 {
 	struct pt_regs * childregs;
Index: 0-test8-pre1.1/arch/arm/kernel/sys_arm.c
--- 0-test8-pre1.1/arch/arm/kernel/sys_arm.c Wed, 19 Jul 2000 17:53:13
+1000 kaos (linux-2.4/f/c/50_sys_arm.c 1.4 644)
+++ 0-test8-pre1.1(w)/arch/arm/kernel/sys_arm.c Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/f/c/50_sys_arm.c 1.4 644)
@@ -203,7 +203,7 @@
  */
 asmlinkage int sys_fork(struct pt_regs *regs)
 {
-	return do_fork(SIGCHLD, regs->ARM_sp, regs);
+	return do_fork(SIGCHLD, regs->ARM_sp, 0, regs);
 }
 
 /* Clone a task - this clones the calling program thread.
@@ -213,12 +213,12 @@
 {
 	if (!newsp)
 		newsp = regs->ARM_sp;
-	return do_fork(clone_flags, newsp, regs);
+	return do_fork(clone_flags, newsp, 0, regs);
 }
 
 asmlinkage int sys_vfork(struct pt_regs *regs)
 {
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->ARM_sp, regs);
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->ARM_sp, 0,
regs);
 }
 
 /* sys_execve() executes a new program.
Index: 0-test8-pre1.1/arch/sparc64/kernel/entry.S
--- 0-test8-pre1.1/arch/sparc64/kernel/entry.S Sat, 05 Aug 2000 13:33:35
+1000 kaos (linux-2.4/i/c/20_entry.S 1.1.1.3 644)
+++ 0-test8-pre1.1(w)/arch/sparc64/kernel/entry.S Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/i/c/20_entry.S 1.1.1.3 644)
@@ -911,7 +911,7 @@
 		mov		SIGCHLD, %o0
 sys_clone:	flushw
 		movrz		%o1, %fp, %o1
-		nop
+		mov		0, %o3
 		ba,pt		%xcc, do_fork
 		 add		%sp, STACK_BIAS + REGWIN_SZ, %o2
 ret_from_syscall:
Index: 0-test8-pre1.1/arch/sparc64/kernel/process.c
--- 0-test8-pre1.1/arch/sparc64/kernel/process.c Thu, 24 Aug 2000
03:13:10 +1000 kaos (linux-2.4/i/c/25_process.c 1.6 644)
+++ 0-test8-pre1.1(w)/arch/sparc64/kernel/process.c Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/i/c/25_process.c 1.6 644)
@@ -573,6 +573,7 @@
  *       do_fork().
  */
 int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
+		unsigned long unused,
 		struct task_struct *p, struct pt_regs *regs)
 {
 	struct thread_struct *t = &p->thread;
Index: 0-test8-pre1.1/arch/m68k/kernel/process.c
--- 0-test8-pre1.1/arch/m68k/kernel/process.c Tue, 11 Jul 2000 11:25:12
+1000 kaos (linux-2.4/l/c/42_process.c 1.2 644)
+++ 0-test8-pre1.1(w)/arch/m68k/kernel/process.c Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/l/c/42_process.c 1.2 644)
@@ -181,12 +181,12 @@
 
 asmlinkage int m68k_fork(struct pt_regs *regs)
 {
-	return do_fork(SIGCHLD, rdusp(), regs);
+	return do_fork(SIGCHLD, rdusp(), 0, regs);
 }
 
 asmlinkage int m68k_vfork(struct pt_regs *regs)
 {
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), regs);
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), 0, regs);
 }
 
 asmlinkage int m68k_clone(struct pt_regs *regs)
@@ -199,10 +199,11 @@
 	newsp = regs->d2;
 	if (!newsp)
 		newsp = rdusp();
-	return do_fork(clone_flags, newsp, regs);
+	return do_fork(clone_flags, newsp, 0, regs);
 }
 
 int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+		 unsigned long unused,
 		 struct task_struct * p, struct pt_regs * regs)
 {
 	struct pt_regs * childregs;
Index: 0-test8-pre1.1/arch/ppc/kernel/smp.c
--- 0-test8-pre1.1/arch/ppc/kernel/smp.c Fri, 14 Jul 2000 19:35:46 +1000
kaos (linux-2.4/q/c/36_smp.c 1.1.1.3 644)
+++ 0-test8-pre1.1(w)/arch/ppc/kernel/smp.c Sat, 02 Sep 2000 11:30:29
+1100 kaos (linux-2.4/q/c/36_smp.c 1.1.1.3 644)
@@ -347,7 +347,7 @@
 		/* create a process for the processor */
 		/* we don't care about the values in regs since we'll
 		   never reschedule the forked task. */
-		if (do_fork(CLONE_VM|CLONE_PID, 0, &regs) < 0)
+		if (do_fork(CLONE_VM|CLONE_PID, 0, 0, &regs) < 0)
 			panic("failed fork for CPU %d", i);
 		p = init_task.prev_task;
 		if (!p)
Index: 0-test8-pre1.1/arch/ppc/kernel/process.c
--- 0-test8-pre1.1/arch/ppc/kernel/process.c Wed, 21 Jun 2000 12:24:29
+1000 kaos (linux-2.4/r/c/11_process.c 1.1.1.1 644)
+++ 0-test8-pre1.1(w)/arch/ppc/kernel/process.c Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/r/c/11_process.c 1.1.1.1 644)
@@ -315,6 +315,7 @@
  */
 int
 copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+	    unsigned long unused,
 	    struct task_struct * p, struct pt_regs * regs)
 {
 	unsigned long msr;
@@ -446,7 +447,7 @@
 	unsigned long clone_flags = p1;
 	int res;
 	lock_kernel();
-	res = do_fork(clone_flags, regs->gpr[1], regs);
+	res = do_fork(clone_flags, regs->gpr[1], 0, regs);
 #ifdef CONFIG_SMP
 	/* When we clone the idle task we keep the same pid but
 	 * the return value of 0 for both causes problems.
@@ -465,7 +466,7 @@
 
 	int res;
 	
-	res = do_fork(SIGCHLD, regs->gpr[1], regs);
+	res = do_fork(SIGCHLD, regs->gpr[1], 0, regs);
 #ifdef CONFIG_SMP
 	/* When we clone the idle task we keep the same pid but
 	 * the return value of 0 for both causes problems.
@@ -480,7 +481,7 @@
 asmlinkage int sys_vfork(int p1, int p2, int p3, int p4, int p5, int
p6,
 			 struct pt_regs *regs)
 {
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->gpr[1], regs);
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->gpr[1], 0,
regs);
 }
 
 asmlinkage int sys_execve(unsigned long a0, unsigned long a1, unsigned
long a2,
Index: 0-test8-pre1.1/arch/mips/kernel/syscall.c
--- 0-test8-pre1.1/arch/mips/kernel/syscall.c Tue, 11 Jul 2000 00:21:05
+1000 kaos (linux-2.4/u/c/17_syscall.c 1.3 644)
+++ 0-test8-pre1.1(w)/arch/mips/kernel/syscall.c Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/u/c/17_syscall.c 1.3 644)
@@ -97,7 +97,7 @@
 	int res;
 
 	save_static(&regs);
-	res = do_fork(SIGCHLD, regs.regs[29], &regs);
+	res = do_fork(SIGCHLD, regs.regs[29], 0, &regs);
 	return res;
 }
 
@@ -112,7 +112,7 @@
 	newsp = regs.regs[5];
 	if (!newsp)
 		newsp = regs.regs[29];
-	res = do_fork(clone_flags, newsp, &regs);
+	res = do_fork(clone_flags, newsp, 0, &regs);
 	return res;
 }
 
Index: 0-test8-pre1.1/arch/mips/kernel/process.c
--- 0-test8-pre1.1/arch/mips/kernel/process.c Tue, 11 Jul 2000 11:25:12
+1000 kaos (linux-2.4/u/c/26_process.c 1.2 644)
+++ 0-test8-pre1.1(w)/arch/mips/kernel/process.c Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/u/c/26_process.c 1.2 644)
@@ -72,6 +72,7 @@
 }
 
 int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+		 unsigned long unused,
                  struct task_struct * p, struct pt_regs * regs)
 {
 	struct pt_regs * childregs;
Index: 0-test8-pre1.1/arch/sparc/kernel/process.c
--- 0-test8-pre1.1/arch/sparc/kernel/process.c Wed, 12 Jul 2000 11:58:08
+1000 kaos (linux-2.4/w/c/50_process.c 1.4 644)
+++ 0-test8-pre1.1(w)/arch/sparc/kernel/process.c Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/w/c/50_process.c 1.4 644)
@@ -462,6 +462,7 @@
 #endif
 
 int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
+		unsigned long unused,
 		struct task_struct *p, struct pt_regs *regs)
 {
 	struct pt_regs *childregs;
Index: 0-test8-pre1.1/arch/sparc/kernel/entry.S
--- 0-test8-pre1.1/arch/sparc/kernel/entry.S Wed, 21 Jun 2000 12:24:29
+1000 kaos (linux-2.4/x/c/6_entry.S 1.1.1.1 644)
+++ 0-test8-pre1.1(w)/arch/sparc/kernel/entry.S Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/x/c/6_entry.S 1.1.1.1 644)
@@ -1391,6 +1391,7 @@
 	mov	%fp, %o1			! arg1:	usp
 	std	%g4, [%curptr + AOFF_task_thread + AOFF_thread_fork_kpsr]
 	add	%sp, REGWIN_SZ, %o2		! arg2:	pt_regs ptr
+	mov	0, %o3
 	call	C_LABEL(do_fork)
 	 mov	%l5, %o7
 	
@@ -1413,6 +1414,7 @@
 1:
 	std	%g4, [%curptr + AOFF_task_thread + AOFF_thread_fork_kpsr]
 	add	%sp, REGWIN_SZ, %o2		! arg2:	pt_regs ptr
+	mov	0, %o3
 	call	C_LABEL(do_fork)
 	 mov	%l5, %o7
 
@@ -1430,6 +1432,7 @@
 	mov	%fp, %o1
 	or	%o0, %lo(0x4000 | 0x0100 | SIGCHLD), %o0
 	sethi	%hi(C_LABEL(do_fork)), %l1
+	mov	0, %o3
 	jmpl	%l1 + %lo(C_LABEL(do_fork)), %g0
 	 add	%sp, REGWIN_SZ, %o2
 
Index: 0-test8-pre1.1/arch/alpha/kernel/smp.c
--- 0-test8-pre1.1/arch/alpha/kernel/smp.c Sat, 05 Aug 2000 13:33:35
+1000 kaos (linux-2.4/y/c/9_smp.c 1.1.1.2.1.2 644)
+++ 0-test8-pre1.1(w)/arch/alpha/kernel/smp.c Sat, 02 Sep 2000 11:30:29
+1100 kaos (linux-2.4/y/c/9_smp.c 1.1.1.2.1.2 644)
@@ -420,7 +420,7 @@
 	 * don't care about the regs settings since
 	 * we'll never reschedule the forked task.
 	 */
-	return do_fork(CLONE_VM|CLONE_PID, 0, &regs);
+	return do_fork(CLONE_VM|CLONE_PID, 0, 0, &regs);
 }
 
 /*
Index: 0-test8-pre1.1/arch/alpha/kernel/process.c
--- 0-test8-pre1.1/arch/alpha/kernel/process.c Tue, 11 Jul 2000 11:25:12
+1000 kaos (linux-2.4/y/c/13_process.c 1.2 644)
+++ 0-test8-pre1.1(w)/arch/alpha/kernel/process.c Sat, 02 Sep 2000
11:30:29 +1100 kaos (linux-2.4/y/c/13_process.c 1.2 644)
@@ -276,14 +276,14 @@
 {
 	if (!usp)
 		usp = rdusp();
-	return do_fork(clone_flags, usp, (struct pt_regs *) (swstack+1));
+	return do_fork(clone_flags, usp, 0, (struct pt_regs *) (swstack+1));
 }
 
 int
 alpha_vfork(struct switch_stack * swstack)
 {
 	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(),
-			(struct pt_regs *) (swstack+1));
+			0, (struct pt_regs *) (swstack+1));
 }
 
 /*
@@ -299,6 +299,7 @@
 
 int
 copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+	    unsigned long unused,
 	    struct task_struct * p, struct pt_regs * regs)
 {
 	extern void ret_from_sys_call(void);
Index: 0-test8-pre1.1/arch/i386/kernel/smpboot.c
--- 0-test8-pre1.1/arch/i386/kernel/smpboot.c Thu, 24 Aug 2000 03:13:10
+1000 kaos (linux-2.4/z/c/29_smpboot.c 1.1.1.2 644)
+++ 0-test8-pre1.1(w)/arch/i386/kernel/smpboot.c Sat, 02 Sep 2000
11:30:30 +1100 kaos (linux-2.4/z/c/29_smpboot.c 1.1.1.2 644)
@@ -497,7 +497,7 @@
 	 * don't care about the eip and regs settings since
 	 * we'll never reschedule the forked task.
 	 */
-	return do_fork(CLONE_VM|CLONE_PID, 0, &regs);
+	return do_fork(CLONE_VM|CLONE_PID, 0, 0, &regs);
 }
 
 #if APIC_DEBUG
Index: 0-test8-pre1.1/arch/i386/kernel/process.c
--- 0-test8-pre1.1/arch/i386/kernel/process.c Tue, 11 Jul 2000 11:25:12
+1000 kaos (linux-2.4/z/c/47_process.c 1.1.2.3.1.1.1.2 644)
+++ 0-test8-pre1.1(w)/arch/i386/kernel/process.c Sat, 02 Sep 2000
11:31:25 +1100 kaos (linux-2.4/z/c/47_process.c 1.1.2.3.1.1.1.2 644)
@@ -525,6 +525,7 @@
 	asm volatile("movl %%" #seg ",%0":"=m" (*(int *)&(value)))
 
 int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
+	unsigned long unused,
 	struct task_struct * p, struct pt_regs * regs)
 {
 	struct pt_regs * childregs;
@@ -686,7 +687,7 @@
 
 asmlinkage int sys_fork(struct pt_regs regs)
 {
-	return do_fork(SIGCHLD, regs.esp, &regs);
+	return do_fork(SIGCHLD, regs.esp, 0, &regs);
 }
 
 asmlinkage int sys_clone(struct pt_regs regs)
@@ -698,7 +699,7 @@
 	newsp = regs.ecx;
 	if (!newsp)
 		newsp = regs.esp;
-	return do_fork(clone_flags, newsp, &regs);
+	return do_fork(clone_flags, newsp, 0, &regs);
 }
 
 /*
@@ -713,7 +714,7 @@
  */
 asmlinkage int sys_vfork(struct pt_regs regs)
 {
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs.esp, &regs);
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs.esp, 0, &regs);
 }
 
 /*


From - Thu Nov 08 21:13:22 2018
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From: Matthew Hudson <mhudson@home.com>
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Subject: [parisc-linux] [Fwd: 2.4.0 do_fork() change, all architectures - take 2]
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-------- Original Message --------
Subject: 2.4.0 do_fork() change, all architectures - take 2
Resent-Date: Sat, 2 Sep 2000 04:19:10 +0200 (MET DST)
Resent-From: linux-m68k@phil.uni-sb.de
Date: Sat, 02 Sep 2000 13:18:46 +1100
From: Keith Owens <kaos@ocs3.ocs-net>
To: linux-m68k@phil.uni-sb.de

------- Blind-Carbon-Copy

X-Mailer: exmh version 2.1.1 10/15/1999
From: Keith Owens <kaos@ocs.com.au>
To: linux-kernel@vger.kernel.org
Subject: 2.4.0 do_fork() change, all architectures - take 2
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Date: Sat, 02 Sep 2000 13:18:46 +1100
Message-ID: <8893.967861126@ocs3.ocs-net>

DaveM pointed out that my 2.4.0-test8-pre1 do_fork patch would generate
better sparc assembler if the extra parameter to do_fork was added at
the end instead of in the middle.  So change all
do_fork(flags,sp,0,&regs)
to do_fork(flags,sp,&regs,0);

I'm not going to mail the complete patch again, you can get it from
ftp://ftp.ocs.com.au/pub/do_fork-2.4.0-test8-take2.gz.  The only
significant difference is this bit to IA64, untested.

Index: 0-test8-pre1.1/arch/ia64/kernel/entry.S
- --- 0-test8-pre1.1/arch/ia64/kernel/entry.S Tue, 15 Aug 2000 17:50:48
+1000 kaos (linux-2.4/c/c/16_entry.S 1.3.1.1.1.2 644)
+++ 0-test8-pre1.2(w)/arch/ia64/kernel/entry.S Sat, 02 Sep 2000 12:49:16
+1100 kaos (linux-2.4/c/c/16_entry.S 1.3.1.1.1.2 644)
@@ -68,8 +68,8 @@
 	mov loc1=r16				// save ar.pfs across do_fork
 	UNW(.body)
 	mov out1=in1
- -	mov out2=in2
- -	adds out3=IA64_SWITCH_STACK_SIZE+16,sp	// out3 = &regs
+	mov out3=in2
+	adds out2=IA64_SWITCH_STACK_SIZE+16,sp	// out2 = &regs
 	mov out0=in0				// out0 = clone_flags
 	br.call.sptk.few rp=do_fork
 .ret1:	UNW(.restore sp)
@@ -87,8 +87,8 @@
 	mov loc1=r16				// save ar.pfs across do_fork
 	UNW(.body)
 	mov out1=in1
- -	mov out2=0
- -	adds out3=IA64_SWITCH_STACK_SIZE+16,sp	// out3 = &regs
+	mov out3=0
+	adds out2=IA64_SWITCH_STACK_SIZE+16,sp	// out2 = &regs
 	mov out0=in0				// out0 = clone_flags
 	br.call.sptk.few rp=do_fork
 .ret2:	UNW(.restore sp)
Index: 0-test8-pre1.1/arch/ia64/ia32/ia32_entry.S
- --- 0-test8-pre1.1/arch/ia64/ia32/ia32_entry.S Tue, 15 Aug 2000
17:50:48 +1000 kaos (linux-2.4/c/c/25_ia32_entry 1.3.1.1 644)
+++ 0-test8-pre1.2(w)/arch/ia64/ia32/ia32_entry.S Sat, 02 Sep 2000
12:49:58 +1100 kaos (linux-2.4/c/c/25_ia32_entry 1.3.1.1 644)
@@ -91,8 +91,8 @@
 	UNW(.body)
 
 	mov out1=0
- -	mov out2=0
- -	adds out3=IA64_SWITCH_STACK_SIZE+16,sp
+	mov out3=0
+	adds out2=IA64_SWITCH_STACK_SIZE+16,sp	// out2 = &regs
 	br.call.sptk.few rp=do_fork
 .ret3:	mov ar.pfs=loc1
 	UNW(.restore sp)


------- End of Blind-Carbon-Copy


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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Boot error on C200+
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Hello,

I am getting the following error when I attempt to boot parisc-linux on
the
C200+.

VFS: Mounted root (nfs filesystem) readonly.
execve /sbin/init c0270008 c0270030

Kernel Fault: Code=7 regs=c7f98248 (Addr=00000110)

PSW  : 0004000b  GR 1 : 00002000  GR 2 : 00013403  GR 3 : 00000000
GR 4 : 2001ff74  GR 5 : 00000000  GR 6 : 000777f4  GR 7 : 000010c4
GR 8 : 000011bc  GR 9 : c7f98000  GR10 : c022fa78  GR11 : c0270030
GR12 : c0270008  GR13 : c022fe14  GR14 : c0270000  GR15 : 617bfdfb
GR16 : c027c60c  GR17 : 00000000  GR18 : c02b0000  GR19 : 00000001
GR20 : 00000037  GR21 : 00089b9c  GR22 : 00089bd8  GR23 : 000010c4
GR24 : 2001ff74  GR25 : 00000001  GR26 : 00000000  GR27 : 00088f00
GR28 : b64d8e60  GR29 : b44302d0  GR30 : 20020140  GR31 : 00022d63
SR0  : 00002000  SR1  : fffd2dff  SR2  : 00000000  SR3  : 00002000
SR4  : 00000000  SR5  : 00002000  SR6  : 00002000  SR7  : 00002000

IASQ : 00000000 00000000 IAOQ : 00000110 00000114 ORIG_R28 : ffdf7fff
 IIR : 43ffff40 ISR : 00000000 IOR : 00000000



Paul Bame helped me start tracking this error down.  I wanted to post
his
analysis along with the boot message to this list for further comment.
(Hopefully his analysis will help other how to start debugging these
errors
as Paul helped me.)

- Kernel Fault Code 7 is an Instruction Memory Protection Trap.

- Stack Pointer (GR30) is in user space.   Most of the time if the
kernel
is in kernel space GR30 will look like this: 0xcxxxxxxx.

- GR2 is often the address where a subroutine will return, so it tells
where
it was called from.  In this case: 00013403.

- The last two bits of GR2 are non-zero, which is consistent with a
userspace program.

- Perform an objdump -d on sash and look for address 133f8.
        (GR2 & 0xfffffffc) - 0x8 (two instructions).

   133f8:       e8 47 12 b4     b,l 22d58 <__libc_fcntl>,rp
   133fc:       34 19 00 02     ldi 1,r25
   13400:       8f 9f 20 50     cmpib,<> -1,ret0,13430
<check_one_fd+0x44>
   13404:       4b c2 3f 59     ldw -54(sr0,sp),rp

- Find out who/what called your kernel, by looking up the sysmbols in
sash (Note the sasy binary must contain symbols):

    hppa-linux-nm -n sash | grep 22d58

00022d58 W __fcntl
00022d58 T __libc_fcntl
00022d58 W fcntl


I am going to start digging around in sash and glibc to see if I can
figure out
anymore information on this problem.  Any help/advice is appreciated.

Thanks,

Ryan




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From: Erik Paulson <epaulson@upl.cs.wisc.edu>
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Subject: Re: [hppa-linux] bubsy on the list ?
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ftp://hpux.cae.wisc.edu/hpux/Gnu/

-Erik


> 
> Is there a site w/ hp gnu utility binaries ?
> 
> Like the freesoftware site for solaris ?
> 
> --
> 
>  Ed June
> 
>  buggz@america.net
>  Linux: An open choice for free people worldwide.
> 
> 
> 
> -------------------------------------------------------------------------
> To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


From - Thu Nov 08 21:13:22 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] Boot error on C200+
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Ryan Bradetich <rbradetich@uswest.net> writes:

> Kernel Fault: Code=7 regs=c7f98248 (Addr=00000110)
> 
> PSW  : 0004000b  GR 1 : 00002000  GR 2 : 00013403  GR 3 : 00000000
> GR 4 : 2001ff74  GR 5 : 00000000  GR 6 : 000777f4  GR 7 : 000010c4
> GR 8 : 000011bc  GR 9 : c7f98000  GR10 : c022fa78  GR11 : c0270030
> GR12 : c0270008  GR13 : c022fe14  GR14 : c0270000  GR15 : 617bfdfb
> GR16 : c027c60c  GR17 : 00000000  GR18 : c02b0000  GR19 : 00000001
> GR20 : 00000037  GR21 : 00089b9c  GR22 : 00089bd8  GR23 : 000010c4
> GR24 : 2001ff74  GR25 : 00000001  GR26 : 00000000  GR27 : 00088f00
> GR28 : b64d8e60  GR29 : b44302d0  GR30 : 20020140  GR31 : 00022d63
> SR0  : 00002000  SR1  : fffd2dff  SR2  : 00000000  SR3  : 00002000
> SR4  : 00000000  SR5  : 00002000  SR6  : 00002000  SR7  : 00002000
> 
> IASQ : 00000000 00000000 IAOQ : 00000110 00000114 ORIG_R28 : ffdf7fff
                           ^^^^^^^^^^^^^^^^^^^^^^^^

That is the syscall gateway page.  Note that the low bits of IAOQ are
clear, so you are running in kernel mode and kernel space at this
point.  Note also that the IAOQ points to just after the 'gate'
instruction in linux_gateway_page, and from the look of the space
registers, you've managed to successfully execute the instruction in
the delay slot of the gate (mtsp %r0,%sr4) but nothing else.

Note that GR20 is 0x37, which is the syscall number for fcntl(), which
confirms your earlier findings :-)

>  IIR : 43ffff40 ISR : 00000000 IOR : 00000000

That IIR doesn't look like any instruction on the syscall page that I
know of.  Perhaps the gateway page is not getting mapped properly.
The fact that it is trapping after the 'gate' instruction seems to
support this.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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I see this on C180.  It goes away if you modify entry.S to use
PA2.0-style tlb inserts instead of the PA1.1-style tlb inserts.
Try the attached patch.  It modifies the tlb miss handlers at startup to
use PA2.0 tlb inserts if you have a PA2.0 cpu.  PA-8000 docs claim
that PA1.1 tlb inserts are not supported, so I suspect we're hitting
a case that doesn't work.

Would someone who has CVS write access be willing to commit this
patch?  It's the last thing I need to make C180 work.

-Bob

On Sat, Sep 02, 2000 at 04:41:46PM -0600, Ryan Bradetich wrote:
> Hello,
> 
> I am getting the following error when I attempt to boot parisc-linux on
> the
> C200+.
> 
> VFS: Mounted root (nfs filesystem) readonly.
> execve /sbin/init c0270008 c0270030
> 
> Kernel Fault: Code=7 regs=c7f98248 (Addr=00000110)
> 
> PSW  : 0004000b  GR 1 : 00002000  GR 2 : 00013403  GR 3 : 00000000
> GR 4 : 2001ff74  GR 5 : 00000000  GR 6 : 000777f4  GR 7 : 000010c4
> GR 8 : 000011bc  GR 9 : c7f98000  GR10 : c022fa78  GR11 : c0270030
> GR12 : c0270008  GR13 : c022fe14  GR14 : c0270000  GR15 : 617bfdfb
> GR16 : c027c60c  GR17 : 00000000  GR18 : c02b0000  GR19 : 00000001
> GR20 : 00000037  GR21 : 00089b9c  GR22 : 00089bd8  GR23 : 000010c4
> GR24 : 2001ff74  GR25 : 00000001  GR26 : 00000000  GR27 : 00088f00
> GR28 : b64d8e60  GR29 : b44302d0  GR30 : 20020140  GR31 : 00022d63
> SR0  : 00002000  SR1  : fffd2dff  SR2  : 00000000  SR3  : 00002000
> SR4  : 00000000  SR5  : 00002000  SR6  : 00002000  SR7  : 00002000
> 
> IASQ : 00000000 00000000 IAOQ : 00000110 00000114 ORIG_R28 : ffdf7fff
>  IIR : 43ffff40 ISR : 00000000 IOR : 00000000
> 
> 
> 
> Paul Bame helped me start tracking this error down.  I wanted to post
> his
> analysis along with the boot message to this list for further comment.
> (Hopefully his analysis will help other how to start debugging these
> errors
> as Paul helped me.)
> 
> - Kernel Fault Code 7 is an Instruction Memory Protection Trap.
> 
> - Stack Pointer (GR30) is in user space.   Most of the time if the
> kernel
> is in kernel space GR30 will look like this: 0xcxxxxxxx.
> 
> - GR2 is often the address where a subroutine will return, so it tells
> where
> it was called from.  In this case: 00013403.
> 
> - The last two bits of GR2 are non-zero, which is consistent with a
> userspace program.
> 
> - Perform an objdump -d on sash and look for address 133f8.
>         (GR2 & 0xfffffffc) - 0x8 (two instructions).
> 
>    133f8:       e8 47 12 b4     b,l 22d58 <__libc_fcntl>,rp
>    133fc:       34 19 00 02     ldi 1,r25
>    13400:       8f 9f 20 50     cmpib,<> -1,ret0,13430
> <check_one_fd+0x44>
>    13404:       4b c2 3f 59     ldw -54(sr0,sp),rp
> 
> - Find out who/what called your kernel, by looking up the sysmbols in
> sash (Note the sasy binary must contain symbols):
> 
>     hppa-linux-nm -n sash | grep 22d58
> 
> 00022d58 W __fcntl
> 00022d58 T __libc_fcntl
> 00022d58 W fcntl
> 
> 
> I am going to start digging around in sash and glibc to see if I can
> figure out
> anymore information on this problem.  Any help/advice is appreciated.
> 
> Thanks,
> 
> Ryan
> 
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

--dc+cDN39EJAMEtIO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="tlb.patch"

Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /home/cvs/parisc/linux-2.3/arch/parisc/kernel/entry.S,v
retrieving revision 1.32
diff -u -p -r1.32 entry.S
--- entry.S	2000/08/30 22:28:35	1.32
+++ entry.S	2000/09/02 04:20:06
@@ -655,12 +655,18 @@ dtlb_miss:
 	depi		1,12,1,prot
 	extru,=         pte,_PAGE_USER_BIT,1,r0
 	depi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
+	extru,= 	pte,_PAGE_GATEWAY_BIT,1,r0
+	depi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
 
 	/* Get rid of prot bits and convert to page addr for idtlba */
 
 	depi		0,31,12,pte
 	extru		pte,24,25,pte
 
+
+	/* The following may get patched with idtlb_insert_pa20 */
+	.export		idtlb_insert0,code
+idtlb_insert0:
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
@@ -671,6 +677,8 @@ dtlb_miss:
 
 	rfir
 	nop
+	.export		idtlb_insert0_end,code
+idtlb_insert0_end:
 
 itlb_miss:
 
@@ -712,6 +720,8 @@ itlb_miss_common:
 	copy            spc,prot        /* init prot with faulting space */
 	dep		pte,8,7,prot
 
+	extru,=		pte,_PAGE_NO_CACHE_BIT,1,r0
+	depi		1,12,1,prot
 	extru,=         pte,_PAGE_USER_BIT,1,r0
 	depi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
 	extru,= 	pte,_PAGE_GATEWAY_BIT,1,r0
@@ -722,6 +732,9 @@ itlb_miss_common:
 	depi		0,31,12,pte
 	extru		pte,24,25,pte
 
+	/* The following may get patched with idtlb_insert_pa20 */
+	.export		iitlb_insert,code
+iitlb_insert:
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
@@ -732,6 +745,8 @@ itlb_miss_common:
 
 	rfir
 	nop
+	.export		iitlb_insert_end,code
+iitlb_insert_end:
 
 itlb_miss_kernel:
 	b               itlb_miss_common
@@ -773,12 +788,18 @@ dbit_trap:
 	depi		1,12,1,prot
 	extru,=         pte,_PAGE_USER_BIT,1,r0
 	depi		7,11,3,prot /* Set for user space (1 rsvd for read) */
+	extru,= 	pte,_PAGE_GATEWAY_BIT,1,r0
+	depi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
 
 	/* Get rid of prot bits and convert to page addr for idtlba */
 
 	depi		0,31,12,pte
 	extru		pte,24,25,pte
 
+
+	/* The following may get patched with idtlb_insert_pa20 */
+	.export		idtlb_insert1,code
+idtlb_insert1:
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
 
@@ -789,7 +810,37 @@ dbit_trap:
 
 	rfir
 	nop
+	.export		idtlb_insert1_end,code
+idtlb_insert1_end:
+
+	.level		2.0
+	.text
+	.export		idtlb_insert_pa20,code
+idtlb_insert_pa20:
+        depd    	%r17,31,32,%r17
+        depdi   	0,46,15,%r17
+	idtlbt		%r16,%r17
+	rfir
+	nop
+	nop
+	nop
+	.export		idtlb_insert_pa20_end,code
+idtlb_insert_pa20_end:
+
+	.export		iitlb_insert_pa20,code
+iitlb_insert_pa20:
+        depd    	%r17,31,32,%r17
+        depdi   	0,46,15,%r17
+	iitlbt		%r16,%r17
+	rfir
+	nop
+	nop
+	nop
+	.export		iitlb_insert_pa20_end,code
+iitlb_insert_pa20_end:
 
+	.level		1.1
+	.text
 	.import handle_interruption,code
 
 kernel_bad_space:
Index: arch/parisc/kernel/traps.c
===================================================================
RCS file: /home/cvs/parisc/linux-2.3/arch/parisc/kernel/traps.c,v
retrieving revision 1.18
diff -u -p -r1.18 traps.c
--- traps.c	2000/08/28 20:16:11	1.18
+++ traps.c	2000/09/02 04:20:06
@@ -29,6 +29,7 @@
 #include <asm/atomic.h>
 
 #include <asm/smp.h>
+#include <asm/pgalloc.h>
 
 static inline void console_verbose(void)
 {
@@ -350,8 +351,7 @@ extern void fault_vector(void);
 
 int __init check_ivt(char * iva)
 {
-	int i;
-	u32 check = 0, *p;
+	u32 *p;
 
 	if(strcmp(iva, "cows can fly"))
 		return -1;
@@ -375,7 +375,55 @@ int __init check_ivt(char * iva)
 
 	return 0;
 }
+
+extern void iitlb_insert(), idtlb_insert0(), idtlb_insert1();
+extern void iitlb_insert_end(), idtlb_insert0_end(), idtlb_insert1_end();
+extern void iitlb_insert_pa20(), idtlb_insert_pa20();
+extern void iitlb_insert_pa20_end(), idtlb_insert_pa20_end();
+
+static inline void
+flush_kernel_icache_range(unsigned long start, unsigned long size)
+{
+	register unsigned long end = start + size;
+	register unsigned long i;
+
+	for (i = start; i <= end; i += L1_CACHE_BYTES) {
+		asm volatile("fic 0(%%sr0, %0)" : : "r" (i));
+	}
+}
+
+void
+trap_patch_tlb_inserts()
+{
+	int ilen = iitlb_insert_pa20_end-iitlb_insert_pa20;
+	int dlen = idtlb_insert_pa20_end-idtlb_insert_pa20;
 	
+	if(ilen != (iitlb_insert_end-iitlb_insert)) {
+		panic("trap_patch_tlb_inserts: iitlb_insert_pa20 bad size");
+	}
+	if(dlen != (idtlb_insert0_end-idtlb_insert0)) {
+		panic("trap_patch_tlb_inserts: idtlb_insert_pa20 bad size");
+	}
+	if(dlen != (idtlb_insert0_end-idtlb_insert0)) {
+		panic("trap_patch_tlb_inserts: idtlb_insert_pa20 bad size");
+	}
+
+	memcpy (iitlb_insert, iitlb_insert_pa20, ilen);
+	memcpy (idtlb_insert0, idtlb_insert_pa20, dlen);
+	memcpy (idtlb_insert1, idtlb_insert_pa20, dlen);
+
+	flush_kernel_dcache_range((unsigned long)iitlb_insert, ilen);
+	flush_kernel_dcache_range((unsigned long)idtlb_insert0, dlen);
+	flush_kernel_dcache_range((unsigned long)idtlb_insert1, dlen);
+
+	flush_kernel_icache_range((unsigned long)iitlb_insert, ilen);
+	flush_kernel_icache_range((unsigned long)idtlb_insert0, dlen);
+	flush_kernel_icache_range((unsigned long)idtlb_insert1, dlen);
+
+        asm volatile("sync");
+
+}
+
 void __init trap_init(void)
 {
 	volatile long eiem;
@@ -385,6 +433,9 @@ void __init trap_init(void)
 	
 	if(check_ivt((void *)fault_vector))
 		panic("IVT invalid");
+	if(boot_cpu_data.cpu_type >= pcxu) {
+		trap_patch_tlb_inserts();
+	}
 
 	mtctl(__pa(&fault_vector), 14);
 	mtctl(0, 30);

--dc+cDN39EJAMEtIO--


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Bob Pflederer wrote:

> I see this on C180.  It goes away if you modify entry.S to use
> PA2.0-style tlb inserts instead of the PA1.1-style tlb inserts.
> Try the attached patch.  It modifies the tlb miss handlers at startup to
> use PA2.0 tlb inserts if you have a PA2.0 cpu.  PA-8000 docs claim
> that PA1.1 tlb inserts are not supported, so I suspect we're hitting
> a case that doesn't work.
>
> Would someone who has CVS write access be willing to commit this
> patch?  It's the last thing I need to make C180 work.

Please don't anyone do this.  I've got another fix in progress.  Bob is
correct that we shouldn't be using the PA1.1 inserts.  But he was fooled
by redundant code in trap_init(), thinking that we haven't gone virtual
yet.  Code in trap_init() sets the iva, but it should be removed (which I
will do).  We actually set the iva (and install a small set of mappings)
very early in real/head.S and go virtual before calling start_parisc().
We never run any C code in real mode.  Bob's patch means that we would
still run 1.1 inserts for a while, and then it would be patching the tlb
miss handlers WHILE THEY ARE POTENTIALLY BEING USED!

My fix will do a simple 3-4 assembly instruction test for PA2.0 in
head.S, and then install the appropriate iva. This wastes 2K of memory
having two iva's, but is a lot simpler to do in assembly very early
in the boot process. I'll try to get this done by Tuesday morning
(I work throughout the night Monday).

John Marvin
jsm@fc.hp.com


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David Huggins-Daines wrote:

> Ryan Bradetich <rbradetich@uswest.net> writes:
>
> > Kernel Fault: Code=7 regs=c7f98248 (Addr=00000110)
> >
> > PSW  : 0004000b  GR 1 : 00002000  GR 2 : 00013403  GR 3 : 00000000
> > GR 4 : 2001ff74  GR 5 : 00000000  GR 6 : 000777f4  GR 7 : 000010c4
> > GR 8 : 000011bc  GR 9 : c7f98000  GR10 : c022fa78  GR11 : c0270030
> > GR12 : c0270008  GR13 : c022fe14  GR14 : c0270000  GR15 : 617bfdfb
> > GR16 : c027c60c  GR17 : 00000000  GR18 : c02b0000  GR19 : 00000001
> > GR20 : 00000037  GR21 : 00089b9c  GR22 : 00089bd8  GR23 : 000010c4
> > GR24 : 2001ff74  GR25 : 00000001  GR26 : 00000000  GR27 : 00088f00
> > GR28 : b64d8e60  GR29 : b44302d0  GR30 : 20020140  GR31 : 00022d63
> > SR0  : 00002000  SR1  : fffd2dff  SR2  : 00000000  SR3  : 00002000
> > SR4  : 00000000  SR5  : 00002000  SR6  : 00002000  SR7  : 00002000
> >
> > IASQ : 00000000 00000000 IAOQ : 00000110 00000114 ORIG_R28 : ffdf7fff
>                            ^^^^^^^^^^^^^^^^^^^^^^^^
>
> That is the syscall gateway page.  Note that the low bits of IAOQ are
> clear, so you are running in kernel mode and kernel space at this
> point.  Note also that the IAOQ points to just after the 'gate'
> instruction in linux_gateway_page, and from the look of the space
> registers, you've managed to successfully execute the instruction in
> the delay slot of the gate (mtsp %r0,%sr4) but nothing else.

I just wanted to verify I understood how you obtained this information...

hppa-linux-objdump -d vmlinux

c010d100 <linux_gateway_entry>:
c010d100:       00 00 e4 a1     mfsp sr7,r1
c010d104:       00 01 d8 20     mtsp r1,sr3
c010d108:       e8 00 20 00     b,gate c010d110 <linux_gateway_entry+0x10>,r0
c010d10c:       00 00 38 20     mtsp r0,sr4
c010d110:       00 00 78 20     mtsp r0,sr5

SR4 = 0, but SR5 != 0 ... therefore the delay slot of the gate instruction
executed.

> Note that GR20 is 0x37, which is the syscall number for fcntl(), which
> confirms your earlier findings :-)

>From arch/parisc/kernel/syscall.S

        ENTRY_NAME(sys_ioctl)
        ENTRY_NAME(sys_fcntl)           /* 55 */
        ENTRY_NAME(sys_socketpair)

55 = 0x37 ....  I understand that....I don't see where GR20 is mapped to the
the syscall number.... (Not really important that I know now... but curious)

> >  IIR : 43ffff40 ISR : 00000000 IOR : 00000000
>
> That IIR doesn't look like any instruction on the syscall page that I
> know of.  Perhaps the gateway page is not getting mapped properly.
> The fact that it is trapping after the 'gate' instruction seems to
> support this.

>From this statement, I assume it is a kernel problem and not a glibc
problem ... since the kernel would perform the mapping?  I'll start digging
around in the kernel and see what I can find.... any hints where to start?

Thanks for the replay and explanation.

Ryan


>
> --
> dhd@linuxcare.com, http://www.linuxcare.com/
> Linuxcare. Support for the revolution.
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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From: Ryan Bradetich <rbradetich@uswest.net>
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To: Bob Pflederer <krp@rsn.hp.com>
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Bob,

Testing the patch now... if it works for me ... I'll commit the patch.

Thanks for the patch!

Ryan


Bob Pflederer wrote:

> I see this on C180.  It goes away if you modify entry.S to use
> PA2.0-style tlb inserts instead of the PA1.1-style tlb inserts.
> Try the attached patch.  It modifies the tlb miss handlers at startup to
> use PA2.0 tlb inserts if you have a PA2.0 cpu.  PA-8000 docs claim
> that PA1.1 tlb inserts are not supported, so I suspect we're hitting
> a case that doesn't work.
>
> Would someone who has CVS write access be willing to commit this
> patch?  It's the last thing I need to make C180 work.
>
> -Bob




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Subject: Re: [parisc-linux] Boot error on C200+
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Ryan Bradetich <rbradetich@uswest.net> writes:

> > Note that GR20 is 0x37, which is the syscall number for fcntl(), which
> > confirms your earlier findings :-)
> 
> From arch/parisc/kernel/syscall.S
> 
>         ENTRY_NAME(sys_ioctl)
>         ENTRY_NAME(sys_fcntl)           /* 55 */
>         ENTRY_NAME(sys_socketpair)
> 
> 55 = 0x37 ....  I understand that....I don't see where GR20 is mapped to the
> the syscall number.... (Not really important that I know now... but curious)

A system call on PA-RISC Linux looks like this:

        be,l    0x100(%sr2,%r0),%sr0,%r31
        ldi     <syscall number>,%r20

(with six possible arguments in %r26 - %r21)

> From this statement, I assume it is a kernel problem and not a glibc
> problem ... since the kernel would perform the mapping?  I'll start digging
> around in the kernel and see what I can find.... any hints where to start?

I think the explanation regarding the TLB miss handlers is correct,
but I haven't tried on the C360 since it doesn't get to userland for
me :(

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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= 
= >  IIR : 43ffff40 ISR : 00000000 IOR : 00000000
= 
= That IIR doesn't look like any instruction on the syscall page that I
= know of.

I've seen this IIR consistently (so far) on pa2.0 processors when they
try to fetch an instruction from an unmapped page.

	-P


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Subject: [parisc-linux] PATCH: memory patch
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This is a multi-part message in MIME format.
--------------03E6B5D605078BCA90A54D06
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hello everyone,

I have a small patch that allows the parsic-linux kernel see all
the all the memory the PDC recognizes.   This patch works fine
for me, and if no one has any objections, (ie.  Does this need to
be present for some models?) ... I'll commit it.

Thanks,

Ryan



--------------03E6B5D605078BCA90A54D06
Content-Type: text/plain; charset=us-ascii;
 name="mem.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="mem.patch"

Index: setup.c
===================================================================
RCS file: /home/cvs/parisc/linux-2.3/arch/parisc/kernel/setup.c,v
retrieving revision 1.33
diff -u -p -r1.33 setup.c
--- setup.c	2000/08/25 15:07:19	1.33
+++ setup.c	2000/09/03 20:36:39
@@ -282,8 +282,7 @@ void __init start_parisc(unsigned arg0, 
 	mtctl(ccr, 10);
 
 	mem_start = __pa(memory_start);
-#define MAX_MEM (128*1024*1024)
-	mem_max = (PAGE0->imm_max_mem > MAX_MEM ? MAX_MEM : PAGE0->imm_max_mem);
+	mem_max = PAGE0->imm_max_mem;
 
 	collect_cpuinfo(); // get all cpu & system-information for later use.
 	printk("CPU(s): %d x %s at %d.%06d MHz\n", 

--------------03E6B5D605078BCA90A54D06--


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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: Re: PATCH: memory patch
Date: Sun, 3 Sep 2000 21:22:42 -0600 (MDT)
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Ryan wrote:

>I have a small patch that allows the parsic-linux kernel see all
> the all the memory the PDC recognizes.   This patch works fine
>for me, and if no one has any objections, (ie.  Does this need to
>be present for some models?) ... I'll commit it.

No, a limit was imposed intentionally. Right now, with the kernel
mapping starting at 0xc0000000 we can't support 1 Gb of physical
memory. Machines that have 1 Gb or more will not boot if you
restored the code to what it was before (which is what your patch
would do).

Eventually I plan to move the kernel mapping down a lot closer
to 0. But there are much higher priority things to get done before
that. Right now the kernel is not stable enough to effectively
make good use of even 128 Mb at this point.

I didn't choose the current 128 Mb maximum, and it can almost certainly
be greater than that. If that limit is really bothering you, go ahead
and raise it to 256 Mb or possibly 512 Mb (don't raise it beyond what
you can test).  Don't spend any time trying to figure out what the
absolute maximum can be, since this will almost certainly change in the
future.

John Marvin
jsm@fc.hp.com


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From: "Martin K. Petersen" <mkp@mkp.net>
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>>>>> "John" == John Marvin <jsm@udlkern.fc.hp.com> writes:

John> I didn't choose the current 128 Mb maximum, and it can almost
John> certainly be greater than that. 

It was set to 128 because anything above that caused my 512 MB C160
to barf.  YMMV.

Since the box in question is still in transit from .dk to .ca, I can't
really verify it right now...

-- 
Martin K. Petersen      Cereal Bowl Engineer, Linuxcare, Inc.
http://mkp.net/         SGI XFS, Linux/PA-RISC, GNOME


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From: Kumar <kumar@ix.netcom.com>
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Subject: Re: [hppa-linux] Qn on PA-RISC Page tables and TLB
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On Thu, 25 Mar 1999, Craig Hada wrote:
> > 
> 
> In the absense of a harware TLB walker, the page directory format can be
> structured by software to fit its needs. However, the TLB miss handler
> must reformat the bits to fit the format of the TLB insert instructions.
> To get maximum performace from the system, the TLB miss handlers must be
> made very efficient. The format of the page directory entry in the PA-RISC 
> Arch 1.1 book minimizes the work of the TLB miss handlers by aligning the
> fields to match the format of the TLB insert instructions.
> > 	
> > 
Is it necessary that the virtual to physical mappings in TLB be inserted
only in a tlb miss fault. Can I insert  entries in the anticipation that
there will be a fault soon, for example when I first enable 
virtual mode ? If not, there is a potential chicken and egg problem
because I will get a TLB miss fault as soon as I turn virtual mode on and
TLB miss fault handler has to run in virtual mode with translations
on.....and there aint any tranlations yet inserted ...you get the pitcure

							-pkd




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From: =?iso-8859-1?Q?SOETE_Jo=EBl?= <JSO@europay.com>
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Subject: RE: [parisc-linux] FW: hpux 11.00 near success
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Hi Paul,

> = recipe.linux) I just note that host is not anymore 
> specified. Is it perhaps
> = the mistake? I will advise asap.
> 
> You probably want target=hppa-linux and host=hppa1.1-hpux10 
> or something like that.

I downloaded the tool chain dated 20000901 and
I just launch the configure as per recipe.hpux (without specifying host)
and it build it himself as 'hppa1.1-hp-hpux11.00' and just begin with
message:

*** This configuration is not supported in the following subdirectories:
     ld
    (Any other directories should still work fine.)

And ...

gcc make failled:

if [ -f hppa1.1-hpux-ranlib ] || ( [ hppa1.1-hp-hpux11.00 = hppa1.1-hp-hpux
] && [ -f /usr/bin/ranlib -o -f /bin/ranlib ] ) ; then \
  hppa1.1-hpux-ranlib ./libgcc.a ; \
else true; fi;
gmake[2]: Leaving directory `/linux/pa32/hpux-build/build-gcc/gcc'
/linux/pa32/hpux-build/build-gcc/gcc/xgcc
-B/linux/pa32/hpux-build/build-gcc/gcc/ -B/opt/puffin/hppa1.1-hpux/bin/
-B/opt/puffin/hppa1.1-hpux/lib/ -isystem /opt/puffin/hppa1.1-hpux/include
-DCROSS_COMPILE -DIN_GCC    `echo -g -O2|sed -e 's/-pedantic//g' -e
's/-Wtraditional//g'` -isystem ./include     -c
../../../gcc/gcc/libgcc1-test.c
cc1: warning: -g is only supported when using GAS on this processor,
cc1: warning: -g option disabled.
Testing libgcc1.  Ignore linker warning messages.
/linux/pa32/hpux-build/build-gcc/gcc/xgcc
-B/linux/pa32/hpux-build/build-gcc/gcc/ -B/opt/puffin/hppa1.1-hpux/bin/
-B/opt/puffin/hppa1.1-hpux/lib/ -isystem /opt/puffin/hppa1.1-hpux/include
-DCROSS_COMPILE -DIN_GCC    `echo -g -O2|sed -e 's/-pedantic//g' -e
's/-Wtraditional//g'` -isystem ./include  libgcc1-test.o -o libgcc1-test \
  -nostartfiles -nostdlib `/linux/pa32/hpux-build/build-gcc/gcc/xgcc
-B/linux/pa32/hpux-build/build-gcc/gcc/ -B/opt/puffin/hppa1.1-hpux/bin/
-B/opt/puffin/hppa1.1-hpux/lib/ -isystem /opt/puffin/hppa1.1-hpux/include
--print-libgcc-file-name`
collect2: cannot find `ld'
gmake[1]: *** [libgcc1-test] Error 1
gmake[1]: Leaving directory `/linux/pa32/hpux-build/build-gcc/gcc'
gmake: *** [all-gcc] Error 2

Do I have to assume that it tries to find ld that binutils did not reach to
build?

> 
> Ok, that probably means you need a full tool chain not just
> the one described in the recipes.  x86 users should probably 
> grab the tarball
> ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20000829.tgz
> because building the full tool chain is often difficult.

> For hpux, start with the recipe in buildutils/palinux-autobuilder.
> Be sure to change this line: '$host="i386-linux";' in the script.

But with the HPUX box I have not Internet also not CVS access.
Never the less I will try to configure (change variable to match my env)
palinux-autobuilder asap.

Thanks again for advises,
	Joel


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From - Thu Nov 08 21:13:23 2018
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From: Andrew Park <apark@cdf.toronto.edu>
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Subject: [parisc-linux] syscalls...
Date: Mon, 4 Sep 2000 12:15:55 -0400 (EDT)
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Hi,

I'd like to work on the following item that was in the TODO list
on the puffin group web site.

check other arches for new syscalls we don't have and add them.

I was just wondering whether there is someone working on it already.
If so can we talk and divide the work load?
Thanks


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------



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From: Alan Modra <alan@linuxcare.com.au>
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Subject: [parisc-linux] binutils merge
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I've just completed a merge in both directions with the official binutils
sources at sourceware.cygnus.com.  At this point in time, the two trees
are virtually identical, so if you like, you can now get your binutils
from sourceware.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] syscalls...
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On Mon, Sep 04, 2000 at 12:15:55PM -0400, Andrew Park wrote:
> I'd like to work on the following item that was in the TODO list
> on the puffin group web site.
> 
> check other arches for new syscalls we don't have and add them.
> 
> I was just wondering whether there is someone working on it already.
> If so can we talk and divide the work load?
> Thanks

actually i did that last week... someone want to take it off the todo
list?

-- 
Revolutions do not require corporate support.


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From: Bob Pflederer <krp@rsn.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:7896

I noticed that John committed something this morning, so I tried it out
on my C180, and it works!  For the first time, the CVS kernel boots 
un-modified on my C180.  Odds are good that it will also work in C200+.

Thanks, John.

> 
> My fix will do a simple 3-4 assembly instruction test for PA2.0 in
> head.S, and then install the appropriate iva. This wastes 2K of memory
> having two iva's, but is a lot simpler to do in assembly very early
> in the boot process. I'll try to get this done by Tuesday morning
> (I work throughout the night Monday).
> 
> John Marvin
> jsm@fc.hp.com
> 


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Kernel panic: ccio-dma.c:ccio_alloc_range() I/O MMU is out of mapping resources
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Ryan Bradetich wrote:
> Grant,
> 
> I was hoping  you could expand upon your comment regarding the error
> message.  I have a test case that reliably generates several of these
> messages, and I would like to see if I could fix it (If Bob Pflederer
> doesn't beat me too it :)).

Hi Ryan,
I've cc'd the list since this turned out to be fairly long and will
be of interest to a few others. Besides, if I don't understand something
right either, someone could correct me.... :^)

> I see that you have a FIXME.... but it seems that if the I/O MMU is out
> of resources, it should free up a resource (maybe via LRU) instead of a
> kernel panic?

Nope. The main problem with the code is the allocation algorithm
makes extremely poor use of available resources. This is discussed
at length below.

Secondly, since we cripple the memory available to 128MB, the sizing
of the I/O pdir is also "crippled" to a corresponding size and thus
I/O Pdir allocation won't "scale" with the system. The assumption is
a system with more I/O devices will also have more memory....but
IMHO, crippling the memory size is really a secondary issue and will
get fixed soon enough.

> Sanity Check (Just to make sure I understand the purpose of the I/O MMU).
> The I/O MMU is a cache/TLB for the U2/UTurn chip.  So if the data is
> flushed, it can always be retrieved without data loss.

That's at least partially right.  The I/O MMU *contains* a TLB to cache
I/O address space to physical address space translations. But the
translations are stored in an "I/O Page Directory" (I/O Pdir) in host
memory. The I/O TLB is a form of "cache" to avoid repeatedly fetching
translations from the I/O Pdir for every I/O <-> Memory transaction
(ie DMA).  We "flush" the TLB whenever we change the corresponding
I/O Pdir entry since the two are NOT coherent on most platforms. The
reasons for using and the mechanics of TLB fetching/flushing are
basically the same as for the CPU.

[ digression:
    We might be able to add another "FIXME" here: I think PCX-W and Uturn
    *are* coherent. Ie changes to the I/O Pdir by the PCX-W processor are
    "visible" to the Uturn chip and I *thought* (not certain) the Uturn
    would ditch the now invalid TLB entry on it's own.
]

> 
>    ** FIXME: The search algorithm only checks every
>    **        32cd bit field. So even we only need
>    **        one bit, we wouldn't see it.
>    **        Should shift the pages_mask left
>    **        some during the search in order to
>    **        take advantage of cacheing.
>    */
>    panic(__FILE__ ":" __FUNCTION__ "() I/O MMU is out of mapping
> resources\n");
> 
> 
> I also see lots of other FIXME's in this code I would like to take a
> whack at (if Bob Pflederer doesn't beat me too it :)) .. but I'd like
> to nail this one first since I have a good test case for it.

Sure. This is a generic code problem and not really specific to
U2/Uturn support. SBA (Astro/Ike) code uses the same implementation.
If someone improves this, I'll review and port the changes to sba_iommu.c.

The code uses a "resource bit map" to track which I/O Pdir entries
are (or not) in use. "In use" means the I/O Pdir entry contains a valid
physical address and a device driver is/has programmed it's device to
use this address for DMA.  ccio_alloc_range() builds a bit mask which
represents a consecutive set of I/O Pdir entries and searches the
resource bit map to locate a consecutive set of free bits.
Since I was too lazy to write a really smart *and* fast search
algorithm, I ended up with just a mostly fast one.

The "smart" part is where the search algorithm could find the
consecutive bits in some other location other than the just the
LSB (Least Significant Bits) of every 32-bit word. Since most
mappings (and thus resource bit map searches) are for 1 or 2 pages,
only 1/32 or 2/32 of "available" resources are really available.
Searching the LSB in 8-bit steps (vs 32-bits) is one simple way
of making 4x better use of the resource bit map. (I was thinking
one could use "pages_needed" local variable to determine which search
algorithm to use.) 4x better usage means either we could size the
I/O Pdir 1/4th it's current size or we are alot less likely to
hit the panic() code you quoted above.

But before hacking this to death, read the comments above ccio_alloc_range()
a few times. It's really important the implementation here be really 
"fast" (wall clock - not instruction counts). The mapping and unmapping
code paths are both called for *every* DMA transaction by every device.
This code path is just as important as the interrupt path for performance.
General things to think about when coding (in no particular order): 
i-cache "foot print" size, branches (avoid them), d-cache hit rate.

In general, I'm not too worried about shortening the "worst case" search
time since it means the I/O Pdir was not correctly sized in the first place.
I think the challenging tradeoff is between alloc/free speed and
utilization of I/O Pdir resource.

> Thanks a lot for your help!

welcome,
grant

> Ryan
> 
> 

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Three kinds of userspace/VM/whatever bugs
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1) When forking a lot of processes, eventually the I-cache gets
   corrupted and you get "illegal instruction" or "halted by break 0,0
   (yes, this sucks)" errors.  This one's easy to demonstrate:

#!/bin/sh

while true; do
        cat <<EOF >whatever.foo
foo foo foo foo foo foo foo
EOF
done

   This will quickly die or crash the machine.  This is due to our
   broken cache flushing functions.  If you kludge around this (just
   flush the entire cache all the time) on 2.3.99pre8 then you will no
   longer lose, but of course the machine will run slowly (i.e. don't
   do this on a PA8500 :-) 2.4.0-test6 has other problems which is why
   I don't use it for userspace work (see below).

2) When forking, random things happen in the child process before
   exec() sometimes causing the shell to segfault (this usually
   manifests itself as a fault in the environment variable setup code
   in ash).  This can be replicated by running most large configure
   scripts.

   This is due to our broken TLB flushing macros.  First of all the
   'if (mm == current->mm)' check in these macros does appear to be
   bogus, as removing it "fixes" some of these problems.  Second, we
   have the same problem as above in that the
   flush_(instruction|data)_tlb_range inlines incorrectly use
   p[id]tlbe and we don't distinguish between user and kernel spaces.
   Also __flush_tlb_space basically doesn't work, for the same reason.

   Again, kludging around this by always flushing the entire TLB and
   removing the conditional above makes my A180 stable but slightly
   slower, on 2.3.99pre8.

3) 2.4.0-test6 has some kind of bug that manifests itself in the
   following type of oopsen:

bad magic 807025a (should be c016f720), wq bug, forcing oops.

   These come from this macro in <linux/wait.h>:

#define CHECK_MAGIC(x) if (x != (long)&(x)) \
	{ printk("bad magic %lx (should be %lx), ", (long)x, (long)&(x)); WQ_BUG(); }

   Unfortunately, because they just hang the machine without printing
   a register dump I am unable to see where exactly they are being
   triggered from.  May I suggest that the person who wrote this macro:

#define WQ_BUG() do { \
	printk("wq bug, forcing oops.\n"); \
	for(;;); \
} while (0)

   be shot.  Argh.  I'll track this some more after doing so.

These bugs are all holding up the progress of userspace work.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] entry.S Invalid operands
Date: Tue, 5 Sep 2000 14:32:48 -0700 (PDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:7899

Hi all,
my parisc-linux kernel builds now get:
hppa-linux-gcc -I/linux/test6/linux-2.3/include   -D__KERNEL__ -I/linux/test6/linux-2.3/include  -c -o entry.o entry.S
entry.S: Assembler messages:
entry.S:828: Error: Invalid operands 
entry.S:829: Error: Invalid operands 
entry.S:830: Error: Invalid operands 
...

The preceding line (826) has:
	.level 2.0

I've rebuilt my XC using "recipe.linux -R -u".
How get the hppa-linux toolchain to accept ".level 2.0" stuff?
Or must I use hppa64-linux and force narrow mode builds somehow?

I want to continue testing on the A180 for now...

thanks,
grant


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] entry.S Invalid operands
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Xref: news.gmane.org gmane.linux.ports.parisc:7900

On Tue, 5 Sep 2000, Grant Grundler wrote:

> Hi all,
> my parisc-linux kernel builds now get:
> hppa-linux-gcc -I/linux/test6/linux-2.3/include   -D__KERNEL__ -I/linux/test6/linux-2.3/include  -c -o entry.o entry.S
> entry.S: Assembler messages:
> entry.S:828: Error: Invalid operands 
> entry.S:829: Error: Invalid operands 
> entry.S:830: Error: Invalid operands 

My guess is that you need to update your assembler.  The lines in question
use register aliases instead of %r<num>:
        depd            pte,8,7,prot

pehc CVS before 2000-08-23 won't accept register aliases on all
instructions.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] Boot error on C200+
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Bob and John,

I have the latest CVS kernel on booting on the C200+ and a 755.
They both booted to an ash prompt without any modifications!

Just wanted to let everyone know the changes John made are
working great for me in PARISC 1.1 and PARISC 2.0 land!

Thanks,

Ryan

P.S. It is a great feeling to see my C200+ finally boot linux!

Bob Pflederer wrote:

> I noticed that John committed something this morning, so I tried it out
> on my C180, and it works!  For the first time, the CVS kernel boots
> un-modified on my C180.  Odds are good that it will also work in C200+.
>
> Thanks, John.
>
> >
> > My fix will do a simple 3-4 assembly instruction test for PA2.0 in
> > head.S, and then install the appropriate iva. This wastes 2K of memory
> > having two iva's, but is a lot simpler to do in assembly very early
> > in the boot process. I'll try to get this done by Tuesday morning
> > (I work throughout the night Monday).
> >
> > John Marvin
> > jsm@fc.hp.com
> >
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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From: Michael Shalayeff <mickey@lucifier.dial-up.user.akula.net>
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Subject: Re: [hppa-linux] Qn on PA-RISC Page tables and TLB
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Making, drinking tea and reading an opus magnum from Kumar:
> 
> On Thu, 25 Mar 1999, Craig Hada wrote:
> > > 
> > 
> > In the absense of a harware TLB walker, the page directory format can be
> > structured by software to fit its needs. However, the TLB miss handler
> > must reformat the bits to fit the format of the TLB insert instructions.
> > To get maximum performace from the system, the TLB miss handlers must be
> > made very efficient. The format of the page directory entry in the PA-RISC 
> > Arch 1.1 book minimizes the work of the TLB miss handlers by aligning the
> > fields to match the format of the TLB insert instructions.
> > > 	
> > > 
> Is it necessary that the virtual to physical mappings in TLB be inserted
> only in a tlb miss fault. Can I insert  entries in the anticipation that
> there will be a fault soon, for example when I first enable 
> virtual mode ? If not, there is a potential chicken and egg problem
> because I will get a TLB miss fault as soon as I turn virtual mode on and
> TLB miss fault handler has to run in virtual mode with translations
> on.....and there aint any tranlations yet inserted ...you get the pitcure
usually kernel (and tlb miss handler) get block-mapped w/ block tlb,
so the whole kernel text+data get mapped once w/ one big tlb entry,
and won't get no tlb misses for it no more.
so, the chicken gonna be ok.

cu

-- 
    paranoic mickey       (my employers have changed but, the name has remained)


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Alan Modra wrote:
> My guess is that you need to update your assembler.  The lines in question
> use register aliases instead of %r<num>:
>         depd            pte,8,7,prot
> 
> pehc CVS before 2000-08-23 won't accept register aliases on all
> instructions.

Alan,

I had just updated gcc/binutils and rebuilt them today.
[ See build-tools/recipe.linux.
  "-u" forces an update and "-R" wipes out the build directories
  before building everything again. ]

I might be picking up "as" from someplace else...let me double check.
I am. My PATH is set to /opt/puffin/bin expecting linux-2.3/Makefile
to set CROSS_COMPILE to hppa-linux...so I end up with *native* toolchain.
arrrgggh.

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Alan Modra wrote:
> My guess is that you need to update your assembler.  The lines in question
> use register aliases instead of %r<num>:
>         depd            pte,8,7,prot
> 
> pehc CVS before 2000-08-23 won't accept register aliases on all
> instructions.

Good guess...I sent the previous reply too quickly.
Setting CROSS_COMPILE didn't help. So I went to binutils-2.10
and ran cvs update manually. To my surprise a bunch of files
were updated.

Something's fishy with the "-u" option of recipe.linux.

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Tue, 5 Sep 2000, Grant Grundler wrote:

> Setting CROSS_COMPILE didn't help. So I went to binutils-2.10
> and ran cvs update manually. To my surprise a bunch of files
> were updated.

Well, some should have updated as I did another merge a few hours
ago.  The previous merge was at a bad time, with some configure files
broken.

The other likely possibility is that objects aren't being rebuilt even
when source files are newer.  Dependency information in binutils might be
wrong, or your version of make broken.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] entry.S Invalid operands
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Alan Modra wrote:
> On Tue, 5 Sep 2000, Grant Grundler wrote:
> Well, some should have updated as I did another merge a few hours
> ago.  The previous merge was at a bad time, with some configure files
> broken.

More than about 30-50 files?
I didn't count but it was far more than my 24 line screen.

After rebuilding the binutils/gcc for XC, I can now build kernels again.

> The other likely possibility is that objects aren't being rebuilt even
> when source files are newer.  Dependency information in binutils might be
> wrong, or your version of make broken.

The former is possible though I had rebuilt from scratch.

I had to upgrade make to a newer version since gcc or binutils config
stops if make isn't at least version 3.78. I have 3.78.1.
Did that a few days ago...after dhd pointed out the obvious
config error.

thanks!
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:13:24 2018
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] elf32.em place_orphan segfault
Date: Thu, 7 Sep 2000 02:24:42 +1100 (EST)
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While fiddling with the new "ld --unique" option, I managed to crash the
linker.  You have to try fairly hard, but using a custom link script with
a .text output section that doesn't match the first input .text section
does the trick.  Without --unique you'd need to try even harder with
unusual section flags to get the crash.

Anyway, this patch fixes the problem, and improves link times too.

ld/ChangeLog
	* emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Don't
	try shuffling sections when the orphan happens to be the place
	holder.  Keep count of unique section names generated so we speed
	the search for a new name.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.

Index: emultempl/elf32.em
===================================================================
RCS file: /cvs/src/src/ld/emultempl/elf32.em,v
retrieving revision 1.32
diff -u -p -r1.32 elf32.em
--- elf32.em	2000/09/05 03:05:19	1.32
+++ elf32.em	2000/09/06 14:50:13
@@ -1008,6 +1008,7 @@ gld${EMULATION_NAME}_place_orphan (file,
   static struct orphan_save hold_bss;
   static struct orphan_save hold_rel;
   static struct orphan_save hold_interp;
+  static int count = 1;
   struct orphan_save *place;
   lang_statement_list_type *old = NULL;
   lang_statement_list_type add;
@@ -1092,7 +1093,9 @@ gld${EMULATION_NAME}_place_orphan (file,
      loadable or allocateable characteristics.  */
   outsecname = secname;
   if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
-    outsecname = bfd_get_unique_section_name (output_bfd, outsecname, NULL);
+    outsecname = bfd_get_unique_section_name (output_bfd,
+					      outsecname,
+					      &count);
 
   if (place != NULL)
     {
@@ -1154,7 +1157,9 @@ gld${EMULATION_NAME}_place_orphan (file,
       stat_ptr = old;
 
       snew = os->bfd_section;
-      if (place->os->bfd_section != NULL || place->section != NULL)
+      if (place->section != NULL
+	  || (place->os->bfd_section != NULL
+	      && place->os->bfd_section != snew))
 	{
 	  /* Shuffle the section to make the output file look neater.  */
 	  if (place->section == NULL)



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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] save_specials performance
Date: Wed, 6 Sep 2000 11:48:26 -0700 (PDT)
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Hi john, paul,
if save_specials and rest_specials macros in include/asm-parisc/assembly.h
could trash both %r1 and %r2, would it double the speed of the
macros since the serial mfctl/mtctl could interleave register usage?

I understand %r2 would need to be saved some place first and that
might have it's own set of issues...but I suspect save/rest specials
is getting called alot.

thanks,
grant


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Nasty elf orphan section bug.
Date: Thu, 7 Sep 2000 18:01:58 +1100 (EST)
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This one's a beauty, resulting in empty orphan output sections with nary a
complaint from the linker.  (I reckon it predates my fiddling with
elf32.em too.  Hi Ian ;-) )

The problem was that the statement list tail pointer was never updated.
If an orphan section happenned to be added such that it's output section
statement was right at the tail of the statement list, then the
next output statement to be added was tacked on to the list at the
same position, effectively snipping off the previous statement.
Fortunately, in practice this didn't happen very often when using the
default linker scripts as they have assorted .debug sections at the tail.

Fixed by the last hunk of the following patch, which addresses a few other
minor issues as well.

ld/ChangeLog
	* emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Fix
	broken list handling.  Create __start_SECNAME and __stop_SECNAME
	when no placeholder.  Add some comments.  Test both SEC_CODE and
	SEC_READONLY for hold_text to prevent .rodata orphan poisoning.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.

Index: elf32.em
===================================================================
RCS file: /cvs/src/src/ld/emultempl/elf32.em,v
retrieving revision 1.33
diff -c -p -r1.33 elf32.em
*** elf32.em	2000/09/06 15:28:25	1.33
--- elf32.em	2000/09/07 06:54:05
*************** gld${EMULATION_NAME}_place_orphan (file,
*** 1010,1016 ****
    static struct orphan_save hold_interp;
    static int count = 1;
    struct orphan_save *place;
!   lang_statement_list_type *old = NULL;
    lang_statement_list_type add;
    etree_type *address;
    const char *secname;
--- 1010,1016 ----
    static struct orphan_save hold_interp;
    static int count = 1;
    struct orphan_save *place;
!   lang_statement_list_type *old;
    lang_statement_list_type add;
    etree_type *address;
    const char *secname;
*************** gld${EMULATION_NAME}_place_orphan (file,
*** 1060,1067 ****
  
    if (s->flags & SEC_EXCLUDE)
      return false;
!   else if ((s->flags & SEC_ALLOC) == 0)
!     place = NULL;
    else if ((s->flags & SEC_LOAD) != 0
  	   && strncmp (secname, ".note", 4) == 0
  	   && HAVE_SECTION (hold_interp, ".interp"))
--- 1060,1069 ----
  
    if (s->flags & SEC_EXCLUDE)
      return false;
! 
!   place = NULL;
!   if ((s->flags & SEC_ALLOC) == 0)
!     ;
    else if ((s->flags & SEC_LOAD) != 0
  	   && strncmp (secname, ".note", 4) == 0
  	   && HAVE_SECTION (hold_interp, ".interp"))
*************** gld${EMULATION_NAME}_place_orphan (file,
*** 1076,1090 ****
  	   && (hold_rel.os != NULL
  	       || (hold_rel.os = output_rel_find ()) != NULL))
      place = &hold_rel;
!   else if ((s->flags & SEC_CODE) == 0
! 	   && (s->flags & SEC_READONLY) != 0
  	   && HAVE_SECTION (hold_rodata, ".rodata"))
      place = &hold_rodata;
!   else if ((s->flags & SEC_READONLY) != 0
  	   && hold_text.os != NULL)
      place = &hold_text;
-   else
-     place = NULL;
  
  #undef HAVE_SECTION
  
--- 1078,1089 ----
  	   && (hold_rel.os != NULL
  	       || (hold_rel.os = output_rel_find ()) != NULL))
      place = &hold_rel;
!   else if ((s->flags & (SEC_CODE | SEC_READONLY)) == SEC_READONLY
  	   && HAVE_SECTION (hold_rodata, ".rodata"))
      place = &hold_rodata;
!   else if ((s->flags & (SEC_CODE | SEC_READONLY)) == (SEC_CODE | SEC_READONLY)
  	   && hold_text.os != NULL)
      place = &hold_text;
  
  #undef HAVE_SECTION
  
*************** gld${EMULATION_NAME}_place_orphan (file,
*** 1097,1115 ****
  					      outsecname,
  					      &count);
  
    if (place != NULL)
      {
-       /* Start building a list of statements for this section.  */
-       old = stat_ptr;
        stat_ptr = &add;
        lang_list_init (stat_ptr);
  
        /* If the name of the section is representable in C, then create
  	 symbols to mark the start and the end of the section.  */
        for (ps = outsecname; *ps != '\0'; ps++)
  	if (! isalnum ((unsigned char) *ps) && *ps != '_')
  	  break;
!       if (*ps == '\0' && config.build_constructors)
  	{
  	  char *symname;
  	  etree_type *e_align;
--- 1096,1122 ----
  					      outsecname,
  					      &count);
  
+   /* Start building a list of statements for this section.
+      First save the current statement pointer.  */
+   old = stat_ptr;
+ 
+   /* If we have found an appropriate place for the output section
+      statements for this orphan, add them to our own private list,
+      inserting them later into the global statement list.  */
    if (place != NULL)
      {
        stat_ptr = &add;
        lang_list_init (stat_ptr);
+     }
  
+   if (config.build_constructors)
+     {
        /* If the name of the section is representable in C, then create
  	 symbols to mark the start and the end of the section.  */
        for (ps = outsecname; *ps != '\0'; ps++)
  	if (! isalnum ((unsigned char) *ps) && *ps != '_')
  	  break;
!       if (*ps == '\0')
  	{
  	  char *symname;
  	  etree_type *e_align;
*************** gld${EMULATION_NAME}_place_orphan (file,
*** 1139,1167 ****
      ((bfd_vma) 0, "*default*",
       (struct lang_output_section_phdr_list *) NULL, "*default*");
  
!   if (place != NULL)
      {
!       asection *snew, **pps;
  
!       stat_ptr = &add;
  
!       if (*ps == '\0' && config.build_constructors)
! 	{
! 	  char *symname;
  
! 	  symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_");
! 	  sprintf (symname, "__stop_%s", outsecname);
! 	  lang_add_assignment (exp_assop ('=', symname,
! 					  exp_nameop (NAME, ".")));
! 	}
!       stat_ptr = old;
  
        snew = os->bfd_section;
        if (place->section != NULL
  	  || (place->os->bfd_section != NULL
  	      && place->os->bfd_section != snew))
  	{
! 	  /* Shuffle the section to make the output file look neater.  */
  	  if (place->section == NULL)
  	    {
  #if 0
--- 1146,1180 ----
      ((bfd_vma) 0, "*default*",
       (struct lang_output_section_phdr_list *) NULL, "*default*");
  
!   if (config.build_constructors && *ps == '\0')
      {
!       char *symname;
  
!       /* lang_leave_ouput_section_statement resets stat_ptr.  Put
! 	 stat_ptr back where we want it.  */
!       if (place != NULL)
! 	stat_ptr = &add;
! 
!       symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_");
!       sprintf (symname, "__stop_%s", outsecname);
!       lang_add_assignment (exp_assop ('=', symname,
! 				      exp_nameop (NAME, ".")));
!     }
  
!   /* Restore the global list pointer.  */
!   stat_ptr = old;
  
!   if (place != NULL)
!     {
!       asection *snew, **pps;
  
        snew = os->bfd_section;
        if (place->section != NULL
  	  || (place->os->bfd_section != NULL
  	      && place->os->bfd_section != snew))
  	{
! 	  /* Shuffle the section to make the output file look neater.
! 	     This is really only cosmetic.  */
  	  if (place->section == NULL)
  	    {
  #if 0
*************** gld${EMULATION_NAME}_place_orphan (file,
*** 1190,1195 ****
--- 1203,1211 ----
  	}
        place->section = &snew->next;	/* Save the end of this list.  */
  
+       /* We try to put the output statements in some sort of
+ 	 reasonable order here, because they determine the final load
+ 	 addresses of the orphan sections.  */
        if (place->stmt == NULL)
  	{
  	  /* Put the new statement list right at the head.  */
*************** gld${EMULATION_NAME}_place_orphan (file,
*** 1202,1208 ****
  	  *add.tail = *place->stmt;
  	  *place->stmt = add.head;
  	}
!       place->stmt = add.tail;		/* Save the end of this list.  */
      }
  
    return true;
--- 1218,1231 ----
  	  *add.tail = *place->stmt;
  	  *place->stmt = add.head;
  	}
! 
!       /* Fix the global list pointer if we happened to tack our new
! 	 list at the tail.  */
!       if (*old->tail == add.head)
! 	old->tail = add.tail;
! 
!       /* Save the end of this list.  */
!       place->stmt = add.tail;
      }
  
    return true;


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Nasty elf orphan section bug.
Date: Thu, 7 Sep 2000 20:05:09 +1100 (EST)
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To: binutils@sourceware.cygnus.com
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On Thu, 7 Sep 2000, Alan Modra wrote:

> ld/ChangeLog
> 	* emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Fix
> 	broken list handling.  Create __start_SECNAME and __stop_SECNAME
> 	when no placeholder.  Add some comments.  Test both SEC_CODE and
> 	SEC_READONLY for hold_text to prevent .rodata orphan poisoning.

Drat.  Missed another problem when using weird linker scripts.

ld/ChangeLog
	Handle case where no output section statement created.

This can happen when an output section statement already exists for the
input orphan section.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.

Index: emultempl/elf32.em
===================================================================
RCS file: /cvs/src/src/ld/emultempl/elf32.em,v
retrieving revision 1.34
diff -u -w -p -r1.34 elf32.em
--- elf32.em	2000/09/07 07:08:58	1.34
+++ elf32.em	2000/09/07 08:52:17
@@ -1203,9 +1203,11 @@ gld${EMULATION_NAME}_place_orphan (file,
 	}
       place->section = &snew->next;	/* Save the end of this list.  */
 
+      if (add.head != NULL)
+	{
       /* We try to put the output statements in some sort of
-	 reasonable order here, because they determine the final load
-	 addresses of the orphan sections.  */
+	     reasonable order here, because they determine the final
+	     load addresses of the orphan sections.  */
       if (place->stmt == NULL)
 	{
 	  /* Put the new statement list right at the head.  */
@@ -1219,13 +1221,14 @@ gld${EMULATION_NAME}_place_orphan (file,
 	  *place->stmt = add.head;
 	}
 
-      /* Fix the global list pointer if we happened to tack our new
-	 list at the tail.  */
+	  /* Fix the global list pointer if we happened to tack our
+	     new list at the tail.  */
       if (*old->tail == add.head)
 	old->tail = add.tail;
 
       /* Save the end of this list.  */
       place->stmt = add.tail;
+	}
     }
 
   return true;


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] pdc_console_wait_key()
Date: Thu, 7 Sep 2000 11:53:14 -0700 (PDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:7911

I see pdc_console_wait_key() has #if 0/#endif around the useful
part of the code. Any reason why?

Does (*PAGE0->mem_kbd.iodc_io)() deal with virtual/real mode?

I have the impression this can only be called while in real mode.

The debugger I'm working on "porting" wants pdc_console_wait_key().

thanks,
grant


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From: Andrew Park <apark@cdf.toronto.edu>
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Subject: [parisc-linux] gcc build failure
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Xref: news.gmane.org gmane.linux.ports.parisc:7912

I get the following error message when trying to build gcc.
I've run the contrib/cvsupdate script to update the source as well.
Thanks for any help.


blue <12:17pm> </local/src/puffin/gcc-build> make
make[1]: Entering directory `/usr/local/src/puffin/gcc-build/libiberty'
make[2]: Entering directory `/usr/local/src/puffin/gcc-build/libiberty/testsuite'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/usr/local/src/puffin/gcc-build/libiberty/testsuite'
make[1]: Leaving directory `/usr/local/src/puffin/gcc-build/libiberty'
make[1]: Entering directory `/usr/local/src/puffin/gcc-build/texinfo'
make all-recursive
make[2]: Entering directory `/usr/local/src/puffin/gcc-build/texinfo'
Making all in intl
make[3]: Entering directory `/usr/local/src/puffin/gcc-build/texinfo/intl'
make[3]: Nothing to be done for `all'.
make[3]: Leaving directory `/usr/local/src/puffin/gcc-build/texinfo/intl'
Making all in lib
make[3]: Entering directory `/usr/local/src/puffin/gcc-build/texinfo/lib'
make[3]: Nothing to be done for `all'.
make[3]: Leaving directory `/usr/local/src/puffin/gcc-build/texinfo/lib'
Making all in makeinfo
make[3]: Entering directory `/usr/local/src/puffin/gcc-build/texinfo/makeinfo'
make[3]: Nothing to be done for `all'.
make[3]: Leaving directory `/usr/local/src/puffin/gcc-build/texinfo/makeinfo'
Making all in util
make[3]: Entering directory `/usr/local/src/puffin/gcc-build/texinfo/util'
make[3]: Nothing to be done for `all'.
make[3]: Leaving directory `/usr/local/src/puffin/gcc-build/texinfo/util'
make[2]: Leaving directory `/usr/local/src/puffin/gcc-build/texinfo'
make[1]: Leaving directory `/usr/local/src/puffin/gcc-build/texinfo'
make[1]: Entering directory `/usr/local/src/puffin/gcc-build/etc'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/usr/local/src/puffin/gcc-build/etc'
make[1]: Entering directory `/usr/local/src/puffin/gcc-build/gcc'
(cd intl && make all)
make[2]: Entering directory `/usr/local/src/puffin/gcc-build/gcc/intl'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/usr/local/src/puffin/gcc-build/gcc/intl'
make GCC_FOR_TARGET="/local/src/puffin/gcc-build/gcc/xgcc -B/local/src/puffin/gcc-build/gcc/ -B/junk/puffin/bin/hppa2.0-linux/bin/ -B/junk/puffin/bin/hppa2.0-linux/lib/ -isystem /junk/puffin/bin/hppa2.0-linux/include" \
  HOST_PREFIX="" HOST_PREFIX_1="loser-" \
  AR_FOR_TARGET="hppa2.0-linux-ar" \
  AR_CREATE_FOR_TARGET="hppa2.0-linux-ar  rc" \
  AR_FLAGS_FOR_TARGET="" \
  OLDCC="cc" CCLIBFLAGS="-O" CFLAGS="-g -O2" \
  RANLIB_FOR_TARGET="hppa2.0-linux-ranlib" \
  RANLIB_TEST_FOR_TARGET="[ -f hppa2.0-linux-ranlib ] || ( [ "i386-pc-linux-gnu" = "hppa2.0-unknown-linux-gnu" ] && [ -f /usr/bin/ranlib -o -f /bin/ranlib ] )" \
  LIBGCC2_CFLAGS="-O2  -DCROSS_COMPILE -DIN_GCC    `echo -g -O2|sed -e 's/-pedantic//g' -e 's/-Wtraditional//g'` -isystem ./include  -fPIC -g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED " \
  INCLUDES="-I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include" MAYBE_USE_COLLECT2="" \
  CONFIG_H="" MACHMODE_H="machmode.h machmode.def" \
  LIB1ASMSRC='pa/lib1linux.asm' \
  -f libgcc.mk all
make[2]: Entering directory `/usr/local/src/puffin/gcc-build/gcc'
for d in libgcc; do \
  if [ -d $d ]; then true; else mkdir $d; fi \
done
if [ -f stmp-dirs ]; then true; else touch stmp-dirs; fi
/local/src/puffin/gcc-build/gcc/xgcc -B/local/src/puffin/gcc-build/gcc/ -B/junk/puffin/bin/hppa2.0-linux/bin/ -B/junk/puffin/bin/hppa2.0-linux/lib/ -isystem /junk/puffin/bin/hppa2.0-linux/include -O2  -DCROSS_COMPILE -DIN_GCC    -g -O2 -isystem ./include  -fPIC -g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include -DL_divI -xassembler-with-cpp -c ../../gcc/gcc/config/pa/lib1linux.asm -o libgcc/./_divI.o
/tmp/ccfAaMYS.s: Assembler messages:
/tmp/ccfAaMYS.s:27: Error: Unknown pseudo-op:  `.export'
/tmp/ccfAaMYS.s:28: Error: ignoring unrecognized symbol type "millicode"
/tmp/ccfAaMYS.s:30: Error: Unknown pseudo-op:  `.proc'
/tmp/ccfAaMYS.s:31: Error: Unknown pseudo-op:  `.callinfo'
/tmp/ccfAaMYS.s:32: Error: Unknown pseudo-op:  `.entry'
/tmp/ccfAaMYS.s:33: Error: bad register name `%r26'
/tmp/ccfAaMYS.s:33: Error: Rest of line ignored. First ignored character is `!'.
/tmp/ccfAaMYS.s:34: Error: invalid character ',' in mnemonic
/tmp/ccfAaMYS.s:34: Error: Rest of line ignored. First ignored character is `!'.
/tmp/ccfAaMYS.s:35: Error: bad register name `%r0'
/tmp/ccfAaMYS.s:36: Error: invalid character ',' in mnemonic
/tmp/ccfAaMYS.s:37: Error: bad register name `%r0'
/tmp/ccfAaMYS.s:39: Error: invalid character ',' in mnemonic
/tmp/ccfAaMYS.s:40: Error: bad register name `%r0'
/tmp/ccfAaMYS.s:40: Error: Rest of line ignored. First ignored character is `!'.
/tmp/ccfAaMYS.s:41: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:42: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:43: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:44: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:45: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:46: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:47: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:48: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:49: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:50: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:51: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:52: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:53: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:54: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:55: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:56: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:57: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:58: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:59: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:60: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:61: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:62: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:63: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:64: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:65: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:66: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:67: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:68: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:69: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:70: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:71: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:72: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:73: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:74: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:75: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:76: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:77: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:78: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:79: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:80: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:81: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:82: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:83: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:84: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:85: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:86: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:87: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:88: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:89: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:90: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:91: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:92: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:93: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:94: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:95: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:96: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:97: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:98: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:99: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:100: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:101: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:102: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:103: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:104: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:105: Error: invalid character '%' in mnemonic
/tmp/ccfAaMYS.s:106: Error: no such 386 instruction: `addc %r26,%r26,%r26'
/tmp/ccfAaMYS.s:107: Error: invalid character ',' in mnemonic
/tmp/ccfAaMYS.s:108: Error: bad register name `%r1'
/tmp/ccfAaMYS.s:109: Error: invalid character ',' in mnemonic
/tmp/ccfAaMYS.s:109: Error: Rest of line ignored. First ignored character is `!'.
/tmp/ccfAaMYS.s:110: Error: bad register name `%r0'
/tmp/ccfAaMYS.s:111: Error: no such 386 instruction: `bv %r0(%r31)'
/tmp/ccfAaMYS.s:112: Error: no such 386 instruction: `copy %r26,%r29'
/tmp/ccfAaMYS.s:114: Error: invalid character ',' in mnemonic
/tmp/ccfAaMYS.s:115: Error: no such 386 instruction: `ldi 1,%r29'
/tmp/ccfAaMYS.s:116: Error: invalid character ',' in mnemonic
/tmp/ccfAaMYS.s:117: Error: Unknown pseudo-op:  `.exit'
/tmp/ccfAaMYS.s:118: Error: Unknown pseudo-op:  `.procend'
make[2]: *** [libgcc/./_divI.o] Error 1
make[2]: Leaving directory `/usr/local/src/puffin/gcc-build/gcc'
make[1]: *** [libgcc.a] Error 2
make[1]: Leaving directory `/usr/local/src/puffin/gcc-build/gcc'
make: *** [all-gcc] Error 2
blue <12:18pm> </local/src/puffin/gcc-build> 
 


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------


From - Thu Nov 08 21:13:24 2018
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From: Stan Sieler <sieler@allegro.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] syscall work
Date: Sun, 28 Mar 1999 20:08:15 -0800 (PST)
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In-Reply-To: <Pine.LNX.3.96.990325205652.197B-100000@quark.ix.netcom.com> from "Kumar" at Mar 25, 99 09:01:05 pm
X-Mailer: ELM [version 2.4 PL24]
Xref: news.gmane.org gmane.linux.ports.parisc:7913

Hi,

There may be a reason to avoid the GATE instruction...I've seen some
HP PA-RISC systems where GATE has given way to simply
marking the "gateway" page as non-executable, and relying on a trap
handler to detect the gateway access.  The final result is the same...
an architected method of doing a system call.  (I can only conjecture 
that there is a reason for this...but I don't know what it is.)

Perhaps we can get an HP person to comment?

> It does not matter as long as the gateway instruction is on the "special"
> page. Probably one wants to put a nop before the gateway instruction.

-- 
Stan Sieler                                          sieler@allegro.com
                                     http://www.allegro.com/sieler.html


From - Thu Nov 08 21:13:24 2018
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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] gcc build failure
Date: Fri, 08 Sep 2000 13:27:19 -0400
Organization: The Puffins at Linuxcare
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Andrew Park wrote:
> I get the following error message when trying to build gcc.
> I've run the contrib/cvsupdate script to update the source as well.

You're trying to use the i386 assembler!  You can fix this by first
building and installing the cross binutils, making sure that's in your
path, before you build gcc.

- Alex

> make GCC_FOR_TARGET="/local/src/puffin/gcc-build/gcc/xgcc -B/local/src/puffin/gcc-build/gcc/ -B/junk/puffin/bin/hppa2.0-linux/bin/ -B/junk/puffin/bin/hppa2.0-linux/lib/ -isystem /junk/puffin/bin/hppa2.0-linux/include" \
>   HOST_PREFIX="" HOST_PREFIX_1="loser-" \
>   AR_FOR_TARGET="hppa2.0-linux-ar" \
>   AR_CREATE_FOR_TARGET="hppa2.0-linux-ar  rc" \
>   AR_FLAGS_FOR_TARGET="" \
>   OLDCC="cc" CCLIBFLAGS="-O" CFLAGS="-g -O2" \
>   RANLIB_FOR_TARGET="hppa2.0-linux-ranlib" \
>   RANLIB_TEST_FOR_TARGET="[ -f hppa2.0-linux-ranlib ] || ( [ "i386-pc-linux-gnu" = "hppa2.0-unknown-linux-gnu" ] && [ -f /usr/bin/ranlib -o -f /bin/ranlib ] )" \
>   LIBGCC2_CFLAGS="-O2  -DCROSS_COMPILE -DIN_GCC    `echo -g -O2|sed -e 's/-pedantic//g' -e 's/-Wtraditional//g'` -isystem ./include  -fPIC -g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED " \
>   INCLUDES="-I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include" MAYBE_USE_COLLECT2="" \
>   CONFIG_H="" MACHMODE_H="machmode.h machmode.def" \
>   LIB1ASMSRC='pa/lib1linux.asm' \
>   -f libgcc.mk all
> make[2]: Entering directory `/usr/local/src/puffin/gcc-build/gcc'
> for d in libgcc; do \
>   if [ -d $d ]; then true; else mkdir $d; fi \
> done
> if [ -f stmp-dirs ]; then true; else touch stmp-dirs; fi
> /local/src/puffin/gcc-build/gcc/xgcc -B/local/src/puffin/gcc-build/gcc/ -B/junk/puffin/bin/hppa2.0-linux/bin/ -B/junk/puffin/bin/hppa2.0-linux/lib/ -isystem /junk/puffin/bin/hppa2.0-linux/include -O2  -DCROSS_COMPILE -DIN_GCC    -g -O2 -isystem ./include  -fPIC -g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I../../gcc/gcc -I../../gcc/gcc/config -I../../gcc/gcc/../include -DL_divI -xassembler-with-cpp -c ../../gcc/gcc/config/pa/lib1linux.asm -o libgcc/./_divI.o
> /tmp/ccfAaMYS.s: Assembler messages:
> /tmp/ccfAaMYS.s:27: Error: Unknown pseudo-op:  `.export'
> /tmp/ccfAaMYS.s:28: Error: ignoring unrecognized symbol type "millicode"
> /tmp/ccfAaMYS.s:30: Error: Unknown pseudo-op:  `.proc'
> /tmp/ccfAaMYS.s:31: Error: Unknown pseudo-op:  `.callinfo'
> /tmp/ccfAaMYS.s:32: Error: Unknown pseudo-op:  `.entry'
> /tmp/ccfAaMYS.s:33: Error: bad register name `%r26'

-- 
Alex deVries, Director of Professional Services, The Puffins at
Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Andrew Park <apark@cdf.toronto.edu>
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Subject: Re: [parisc-linux] gcc build failure
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On Fri, 8 Sep 2000, Alex deVries wrote:

> Andrew Park wrote:
> > I get the following error message when trying to build gcc.
> > I've run the contrib/cvsupdate script to update the source as well.
> 
> You're trying to use the i386 assembler!  You can fix this by first
> building and installing the cross binutils, making sure that's in your
> path, before you build gcc.
> 
> - Alex

Hmmm... my path is correct.  When cross built binutils I DID specify
--target=hppa2.0-linux, so I do not know how it could have built i386
binary instead.  Anyhow, thanks for the hint.  I'll rebuild and see
if that helps.


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------


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Subject: Re: [parisc-linux] gcc build failure
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Xref: news.gmane.org gmane.linux.ports.parisc:7916

> On Fri, 8 Sep 2000, Alex deVries wrote:
> 
> > Andrew Park wrote:
> > > I get the following error message when trying to build gcc.
> > > I've run the contrib/cvsupdate script to update the source as well.
> > 
> > You're trying to use the i386 assembler!  You can fix this by first
> > building and installing the cross binutils, making sure that's in your
> > path, before you build gcc.
> > 
> > - Alex
> 
> Hmmm... my path is correct.  When cross built binutils I DID specify
> --target=hppa2.0-linux, so I do not know how it could have built i386
> binary instead.  Anyhow, thanks for the hint.  I'll rebuild and see
> if that helps.

Try `gcc -print-prog-name=as'.  This will show the full path of the
assembler.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] Bug report
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Hello,

The good news: We are really excited about the Puffin project.

The bad news: We tried to boot an Apollo 9000/710 on your PA/Linux
Developer's
Release CD, Version 0.1 - Snapshot 2000/08/04 and never quite got to a
root
prompt (see transcript below).  Should this be possible or are we
missing
something?

Thanks for any advice,

rstickel@mindspring.com
sts@minitower.gtri.gatech.edu




Transcript of attempt to boot Apollo 9000/710 on Puffin CD.  At the
request_irq(259, c01ec76c, 0x0, asp, c3fcd080)
line the systems hangs.



(c) Copyright.  Hewlett-Packard Company.  1991.
All rights reserved.

PDC ROM rev. 2.0
IODC ROM rev. 2.0
64 MB of memory configured and tested.


Selecting a system to boot.
To stop selection process, press and hold the ESCAPE key.

Selection process stopped.

Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.6.0                 MATSHITACD-ROM CR-8005A
P1                    scsi.5.0                 IOMEGA  ZIP 100
P2                    scsi.4.0                 iomega  jaz 1GB
P3                    scsi.3.0                 SEAGATE ST11200N SUN1.05
P4                    scsi.2.0                 SEAGATE ST31230N
P5                    scsi.1.0                 IBM     0662



b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu: a
BOOT_ADMIN> info
----------------------------- Hardware Configuration
------------------------

Machine model: 9000/710

Processor Frequency        = 50000000 Hz
I/O Subsystem Frequency    = 25000000 Hz

LAN Jumper Status: Internal ThinLAN Port selected

Processor Revision                  = 3
System Controller Revision          = 0
Floating Point Coprocessor Revision = 3

Hardware Version            12288     (0x00003000)
Software Version             1153     (0x00000481)

BOOT_ADMIN> boot alt

Trying scsi.6.0
Boot path initialized.
Attempting to load IPL.


Hard booted.
palo ipl bame@noam Fri Aug  4 18:36:35 MDT 2000
0/vmlinux 2349352 bytes @ 0x6e8800
0/palo-cmdline '0/vmlinux TERM=linux HOME=/ root=/dev/scd0'
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1511580 mediaptr 0x1000
Segment 1 load 00272000 size 132368 mediaptr 0x173000
Segment 2 load 00294000 size 86880 mediaptr 0x194000
Segment 3 load 002ac000 size 8192 mediaptr 0x1aa000
branching to kernel entry point 0x00100000
pdc_cons registered !
The Kernel has started...
Free memory starts at: 0xc02dc000
PALO command line: 'TERM=linux HOME=/ root=/dev/scd0'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00003000 00000481 00000000 00000000 78243572 00000000 00000004
0000000d 00000000
vers    00000003
CPUID vers 0 rev 0
CPU(s): 1 x PA7000 at 50.000000 MHz
Searching for devices in PDC firmware...  an older box...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0,
0x77, 0x0, 0x0
2. Bushmaster Core BA (11) at 0xf082f000, versions 0x6, 0x0, 0x70, 0x0,
0x0
3. Bushmaster Core SCSI (10) at 0xf0825000, versions 0x6, 0x0, 0x71,
0x0, 0x0
4. Bushmaster Core LAN (802.3) (10) at 0xf0826000, versions 0x6, 0x0,
0x72, 0x0, 0x0
5. Bushmaster Core HIL (10) at 0xf0821000, versions 0x6, 0x0, 0x73, 0x0,
0x0
6. Bushmaster Core RS-232 (10) at 0xf0823000, versions 0x6, 0x0, 0x75,
0x0, 0x0
7. Bushmaster Core RS-232 (10) at 0xf0822000, versions 0x6, 0x0, 0x75,
0x0, 0x0
8. Bushmaster Core Centronics (10) at 0xf0824000, versions 0x6, 0x0,
0x74, 0x0, 0x0
9. Bushmaster Audio (10) at 0xf1000000, versions 0x6, 0x0, 0x7a, 0x0,
0x0
10. Bushmaster (710) (0) at 0xfffbe000, versions 0x300, 0x0, 0x4, 0x0,
0x81
11. Bushmaster (1) at 0xfffbf000, versions 0x16, 0x0, 0x9, 0x0, 0x0
That's a total of 11 devices.
Linux version 2.3.99-pre8 (bame@noam) (gcc version 2.96 20000707
(experimental)) #24 Fri Aug 4 18:27:58 MDT 2000
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 16384
zone(0): 8192 pages.
zone(1): 8192 pages.
zone(2): 0 pages.
trap_init
Calibrating delay loop... 46.08 BogoMIPS
Memory: 61380k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
kmem_create: Poisoning requested, but con given - bdev_cache
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
kmem_create: Poisoning requested, but con given - inode_cache
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
request_irq(259, c01ec76c, 0x0, asp, c3fcd080)


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Looking for an IA-64 Linux user
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--=-=-=

Hi,

This is somewhat of a strange request, but I'm wondering if there are
any people running Linux on IA-64 who could compile and run this test
case for me and send me back the output and resulting binaries:


--=-=-=
Content-Type: application/x-gtar
Content-Disposition: attachment; filename=dltest.tar.gz
Content-Transfer-Encoding: base64
Content-Description: linker testcase

H4sIALpluTkAA+1XXW/bNhT1q/krbpUYlQzblWRbHuxmWOtubQH3A22HIUMAQRUpmxhNCpKcJRjS
394rSv5Ki7h9cIptPHoQRZ57eXQpHVFUFCwvHjWOCdcduKPhEM+uNxq65bnE+ly1R94w8Id9P8C2
5wbDoAHDo6qqscqLKANo0AW9k5cpVdyHnnsGrdZf8I+JUr34KHPgerrBYLC7/rvPged7/Xr98QiQ
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b8iPfhX+l6j9/3jm3zjs/97Ar/zf7QeB7yHf64884//3gRMuY7GiDB5TkcSyt/iZbLvygnJVdpGt
q6ApDvxJ1bOMuLS1lWjvale7CLSBctBua+tx9rwH3/+tSVChUia5nKM/lOaBlmzbVQ6cpRq1rd56
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/4le+f/ne67x/3vB9LfZk+fv0c66c+i+8aH7B27fyXSKPfM4JgSvxuPtyw94IqS+VJuBmDRP7enU
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MW4qlzj5jtx2T0uG9idCem9fvHl9PgbNNbZkYGBgYGBgYGBgYGBgYGBgYGBgYGDwX8ZnJC4XTwAo
AAA=
--=-=-=


Basically I need to figure out how IA-64 handles shared object
constructors and destructors in practice.

Cheers

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.

--=-=-=--


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From: Fredrik Soderblom <fredrik.soderblom@hp.se>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Looking for an IA-64 Linux user
Date: Sat, 9 Sep 2000 00:58:57 +0200 (CEST)
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To: David Huggins-Daines <dhd@linuxcare.com>
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On 8 Sep 2000, David Huggins-Daines wrote:

> This is somewhat of a strange request, but I'm wondering if there are
> any people running Linux on IA-64 who could compile and run this test
> case for me and send me back the output and resulting binaries:

i think you can get free access to ia-64 h/w at http://ia-64.sourceforge.net/

fredrik


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Looking for an IA-64 Linux user
Date: 08 Sep 2000 19:01:58 -0400
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Fredrik Soderblom <fredrik.soderblom@hp.se> writes:

> i think you can get free access to ia-64 h/w at http://ia-64.sourceforge.net/

Yeah, I applied for that as it may be useful in the future, but I just
needed something built quickly.  Anyway, Alex William from Ft. Collins
had an IA-64 box handy and I had to work through it a bit on IRC
anyway.  Thanks!

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Bug report
Date: Mon, 11 Sep 2000 13:04:23 +0100
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To: Robert Stickel <rstickel@mindspring.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:7921

My 715/75 hangs there if CONFIG_PARPORT_GSC is enabled.  Don't know if that
was turned on on the CD kernel, but it probably was (defaults to on).

Richard


On Fri, Sep 08, 2000 at 06:54:38PM +0000, Robert Stickel wrote:
> 
> Hello,
> 
> The good news: We are really excited about the Puffin project.
> 
> The bad news: We tried to boot an Apollo 9000/710 on your PA/Linux
> Developer's
> Release CD, Version 0.1 - Snapshot 2000/08/04 and never quite got to a
> root
> prompt (see transcript below).  Should this be possible or are we
> missing
> something?
> 
> Thanks for any advice,
> 
> rstickel@mindspring.com
> sts@minitower.gtri.gatech.edu
> 
> 
> 
> 
> Transcript of attempt to boot Apollo 9000/710 on Puffin CD.  At the
> request_irq(259, c01ec76c, 0x0, asp, c3fcd080)
> line the systems hangs.
> 
> 
> 
> (c) Copyright.  Hewlett-Packard Company.  1991.
> All rights reserved.
> 
> PDC ROM rev. 2.0
> IODC ROM rev. 2.0
> 64 MB of memory configured and tested.
> 
> 
> Selecting a system to boot.
> To stop selection process, press and hold the ESCAPE key.
> 
> Selection process stopped.
> 
> Searching for Potential Boot Devices.
> To terminate search, press and hold the ESCAPE key.
> 
> Device Selection      Device Path              Device Type
> ----------------------------------------------------------------------------
> 
> P0                    scsi.6.0                 MATSHITACD-ROM CR-8005A
> P1                    scsi.5.0                 IOMEGA  ZIP 100
> P2                    scsi.4.0                 iomega  jaz 1GB
> P3                    scsi.3.0                 SEAGATE ST11200N SUN1.05
> P4                    scsi.2.0                 SEAGATE ST31230N
> P5                    scsi.1.0                 IBM     0662
> 
> 
> 
> b)    Boot from specified device
> s)    Search for bootable devices
> a)    Enter Boot Administration mode
> x)    Exit and continue boot sequence
> ?)    Help
> 
> Select from menu: a
> BOOT_ADMIN> info
> ----------------------------- Hardware Configuration
> ------------------------
> 
> Machine model: 9000/710
> 
> Processor Frequency        = 50000000 Hz
> I/O Subsystem Frequency    = 25000000 Hz
> 
> LAN Jumper Status: Internal ThinLAN Port selected
> 
> Processor Revision                  = 3
> System Controller Revision          = 0
> Floating Point Coprocessor Revision = 3
> 
> Hardware Version            12288     (0x00003000)
> Software Version             1153     (0x00000481)
> 
> BOOT_ADMIN> boot alt
> 
> Trying scsi.6.0
> Boot path initialized.
> Attempting to load IPL.
> 
> 
> Hard booted.
> palo ipl bame@noam Fri Aug  4 18:36:35 MDT 2000
> 0/vmlinux 2349352 bytes @ 0x6e8800
> 0/palo-cmdline '0/vmlinux TERM=linux HOME=/ root=/dev/scd0'
> Kernel: partition 0 file /vmlinux
> ELF32 executable
> 
> Entry 00100000 first 00100000 n 4
> Segment 0 load 00100000 size 1511580 mediaptr 0x1000
> Segment 1 load 00272000 size 132368 mediaptr 0x173000
> Segment 2 load 00294000 size 86880 mediaptr 0x194000
> Segment 3 load 002ac000 size 8192 mediaptr 0x1aa000
> branching to kernel entry point 0x00100000
> pdc_cons registered !
> The Kernel has started...
> Free memory starts at: 0xc02dc000
> PALO command line: 'TERM=linux HOME=/ root=/dev/scd0'
> PALO initrd 0-0
> FP CCR was 0x0, will be set to 0xc0
> model   00003000 00000481 00000000 00000000 78243572 00000000 00000004
> 0000000d 00000000
> vers    00000003
> CPUID vers 0 rev 0
> CPU(s): 1 x PA7000 at 50.000000 MHz
> Searching for devices in PDC firmware...  an older box...
> Found devices:
> 1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0,
> 0x77, 0x0, 0x0
> 2. Bushmaster Core BA (11) at 0xf082f000, versions 0x6, 0x0, 0x70, 0x0,
> 0x0
> 3. Bushmaster Core SCSI (10) at 0xf0825000, versions 0x6, 0x0, 0x71,
> 0x0, 0x0
> 4. Bushmaster Core LAN (802.3) (10) at 0xf0826000, versions 0x6, 0x0,
> 0x72, 0x0, 0x0
> 5. Bushmaster Core HIL (10) at 0xf0821000, versions 0x6, 0x0, 0x73, 0x0,
> 0x0
> 6. Bushmaster Core RS-232 (10) at 0xf0823000, versions 0x6, 0x0, 0x75,
> 0x0, 0x0
> 7. Bushmaster Core RS-232 (10) at 0xf0822000, versions 0x6, 0x0, 0x75,
> 0x0, 0x0
> 8. Bushmaster Core Centronics (10) at 0xf0824000, versions 0x6, 0x0,
> 0x74, 0x0, 0x0
> 9. Bushmaster Audio (10) at 0xf1000000, versions 0x6, 0x0, 0x7a, 0x0,
> 0x0
> 10. Bushmaster (710) (0) at 0xfffbe000, versions 0x300, 0x0, 0x4, 0x0,
> 0x81
> 11. Bushmaster (1) at 0xfffbf000, versions 0x16, 0x0, 0x9, 0x0, 0x0
> That's a total of 11 devices.
> Linux version 2.3.99-pre8 (bame@noam) (gcc version 2.96 20000707
> (experimental)) #24 Fri Aug 4 18:27:58 MDT 2000
> initrd: 00000000-00000000
> pagetable_init
> On node 0 totalpages: 16384
> zone(0): 8192 pages.
> zone(1): 8192 pages.
> zone(2): 0 pages.
> trap_init
> Calibrating delay loop... 46.08 BogoMIPS
> Memory: 61380k available
> Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
> Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
> kmem_create: Poisoning requested, but con given - bdev_cache
> Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
> kmem_create: Poisoning requested, but con given - inode_cache
> POSIX conformance testing by UNIFIX
> ASP version 1 at 0xf0800000 found.
> request_irq(259, c01ec76c, 0x0, asp, c3fcd080)
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [Fwd: [parisc-linux] Bug report]
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Hmm...

I sent this message out last friday, but I haven't seen it show up in my email
box.

So.... here goes again :)

- Ryan
Ryan Bradetich wrote:

> Robert,
>
> I have problems booting the 735/755 when the kernel is built with
> lasi/asp option enabled (it is enabled in the default config).  If I diable
> this option, I can boot the 735/755 to a root prompt.
>
> I do not know if the kernel on the CD was built with this option, but
> you could build a newer kernel with this option diabled and try it
> for the 710.
>
> Hope this helps,
>
> -Ryan
>
> P.S. This is on my TODO list to fix after I work on the U2/UTurn
> code.  If someone else is interested in taking a look at it, let me know
> and I'll pass on the little bit of information I have about this problem.
>
> Robert Stickel wrote:
>
> > Hello,
> >
> > The good news: We are really excited about the Puffin project.
> >
> > The bad news: We tried to boot an Apollo 9000/710 on your PA/Linux
> > Developer's
> > Release CD, Version 0.1 - Snapshot 2000/08/04 and never quite got to a
> > root
> > prompt (see transcript below).  Should this be possible or are we
> > missing
> > something?
> >
> > Thanks for any advice,
> >
> > rstickel@mindspring.com
> > sts@minitower.gtri.gatech.edu
> >
> > Transcript of attempt to boot Apollo 9000/710 on Puffin CD.  At the
> > request_irq(259, c01ec76c, 0x0, asp, c3fcd080)
> > line the systems hangs.
> >
> > (c) Copyright.  Hewlett-Packard Company.  1991.
> > All rights reserved.
> >
> > PDC ROM rev. 2.0
> > IODC ROM rev. 2.0
> > 64 MB of memory configured and tested.
> >
> > Selecting a system to boot.
> > To stop selection process, press and hold the ESCAPE key.
> >
> > Selection process stopped.
> >
> > Searching for Potential Boot Devices.
> > To terminate search, press and hold the ESCAPE key.
> >
> > Device Selection      Device Path              Device Type
> > ----------------------------------------------------------------------------
> >
> > P0                    scsi.6.0                 MATSHITACD-ROM CR-8005A
> > P1                    scsi.5.0                 IOMEGA  ZIP 100
> > P2                    scsi.4.0                 iomega  jaz 1GB
> > P3                    scsi.3.0                 SEAGATE ST11200N SUN1.05
> > P4                    scsi.2.0                 SEAGATE ST31230N
> > P5                    scsi.1.0                 IBM     0662
> >
> > b)    Boot from specified device
> > s)    Search for bootable devices
> > a)    Enter Boot Administration mode
> > x)    Exit and continue boot sequence
> > ?)    Help
> >
> > Select from menu: a
> > BOOT_ADMIN> info
> > ----------------------------- Hardware Configuration
> > ------------------------
> >
> > Machine model: 9000/710
> >
> > Processor Frequency        = 50000000 Hz
> > I/O Subsystem Frequency    = 25000000 Hz
> >
> > LAN Jumper Status: Internal ThinLAN Port selected
> >
> > Processor Revision                  = 3
> > System Controller Revision          = 0
> > Floating Point Coprocessor Revision = 3
> >
> > Hardware Version            12288     (0x00003000)
> > Software Version             1153     (0x00000481)
> >
> > BOOT_ADMIN> boot alt
> >
> > Trying scsi.6.0
> > Boot path initialized.
> > Attempting to load IPL.
> >
> > Hard booted.
> > palo ipl bame@noam Fri Aug  4 18:36:35 MDT 2000
> > 0/vmlinux 2349352 bytes @ 0x6e8800
> > 0/palo-cmdline '0/vmlinux TERM=linux HOME=/ root=/dev/scd0'
> > Kernel: partition 0 file /vmlinux
> > ELF32 executable
> >
> > Entry 00100000 first 00100000 n 4
> > Segment 0 load 00100000 size 1511580 mediaptr 0x1000
> > Segment 1 load 00272000 size 132368 mediaptr 0x173000
> > Segment 2 load 00294000 size 86880 mediaptr 0x194000
> > Segment 3 load 002ac000 size 8192 mediaptr 0x1aa000
> > branching to kernel entry point 0x00100000
> > pdc_cons registered !
> > The Kernel has started...
> > Free memory starts at: 0xc02dc000
> > PALO command line: 'TERM=linux HOME=/ root=/dev/scd0'
> > PALO initrd 0-0
> > FP CCR was 0x0, will be set to 0xc0
> > model   00003000 00000481 00000000 00000000 78243572 00000000 00000004
> > 0000000d 00000000
> > vers    00000003
> > CPUID vers 0 rev 0
> > CPU(s): 1 x PA7000 at 50.000000 MHz
> > Searching for devices in PDC firmware...  an older box...
> > Found devices:
> > 1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0,
> > 0x77, 0x0, 0x0
> > 2. Bushmaster Core BA (11) at 0xf082f000, versions 0x6, 0x0, 0x70, 0x0,
> > 0x0
> > 3. Bushmaster Core SCSI (10) at 0xf0825000, versions 0x6, 0x0, 0x71,
> > 0x0, 0x0
> > 4. Bushmaster Core LAN (802.3) (10) at 0xf0826000, versions 0x6, 0x0,
> > 0x72, 0x0, 0x0
> > 5. Bushmaster Core HIL (10) at 0xf0821000, versions 0x6, 0x0, 0x73, 0x0,
> > 0x0
> > 6. Bushmaster Core RS-232 (10) at 0xf0823000, versions 0x6, 0x0, 0x75,
> > 0x0, 0x0
> > 7. Bushmaster Core RS-232 (10) at 0xf0822000, versions 0x6, 0x0, 0x75,
> > 0x0, 0x0
> > 8. Bushmaster Core Centronics (10) at 0xf0824000, versions 0x6, 0x0,
> > 0x74, 0x0, 0x0
> > 9. Bushmaster Audio (10) at 0xf1000000, versions 0x6, 0x0, 0x7a, 0x0,
> > 0x0
> > 10. Bushmaster (710) (0) at 0xfffbe000, versions 0x300, 0x0, 0x4, 0x0,
> > 0x81
> > 11. Bushmaster (1) at 0xfffbf000, versions 0x16, 0x0, 0x9, 0x0, 0x0
> > That's a total of 11 devices.
> > Linux version 2.3.99-pre8 (bame@noam) (gcc version 2.96 20000707
> > (experimental)) #24 Fri Aug 4 18:27:58 MDT 2000
> > initrd: 00000000-00000000
> > pagetable_init
> > On node 0 totalpages: 16384
> > zone(0): 8192 pages.
> > zone(1): 8192 pages.
> > zone(2): 0 pages.
> > trap_init
> > Calibrating delay loop... 46.08 BogoMIPS
> > Memory: 61380k available
> > Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
> > Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
> > Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
> > kmem_create: Poisoning requested, but con given - bdev_cache
> > Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
> > kmem_create: Poisoning requested, but con given - inode_cache
> > POSIX conformance testing by UNIFIX
> > ASP version 1 at 0xf0800000 found.
> > request_irq(259, c01ec76c, 0x0, asp, c3fcd080)
> >
> > ---------------------------------------------------------------------------
> > To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> > `unsubscribe' as the subject.

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Date: Fri, 08 Sep 2000 20:04:47 -0600
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CC: parisc-linux@thepuffingroup.com
Subject: Re: [parisc-linux] Bug report
References: <39B935EE.EEEC23BE@mindspring.com>
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Robert,

I have problems booting the 735/755 when the kernel is built with
lasi/asp option enabled (it is enabled in the default config).  If I diable
this option, I can boot the 735/755 to a root prompt.

I do not know if the kernel on the CD was built with this option, but
you could build a newer kernel with this option diabled and try it
for the 710.

Hope this helps,

-Ryan

P.S. This is on my TODO list to fix after I work on the U2/UTurn
code.  If someone else is interested in taking a look at it, let me know
and I'll pass on the little bit of information I have about this problem.


Robert Stickel wrote:

> Hello,
>
> The good news: We are really excited about the Puffin project.
>
> The bad news: We tried to boot an Apollo 9000/710 on your PA/Linux
> Developer's
> Release CD, Version 0.1 - Snapshot 2000/08/04 and never quite got to a
> root
> prompt (see transcript below).  Should this be possible or are we
> missing
> something?
>
> Thanks for any advice,
>
> rstickel@mindspring.com
> sts@minitower.gtri.gatech.edu
>
> Transcript of attempt to boot Apollo 9000/710 on Puffin CD.  At the
> request_irq(259, c01ec76c, 0x0, asp, c3fcd080)
> line the systems hangs.
>
> (c) Copyright.  Hewlett-Packard Company.  1991.
> All rights reserved.
>
> PDC ROM rev. 2.0
> IODC ROM rev. 2.0
> 64 MB of memory configured and tested.
>
> Selecting a system to boot.
> To stop selection process, press and hold the ESCAPE key.
>
> Selection process stopped.
>
> Searching for Potential Boot Devices.
> To terminate search, press and hold the ESCAPE key.
>
> Device Selection      Device Path              Device Type
> ----------------------------------------------------------------------------
>
> P0                    scsi.6.0                 MATSHITACD-ROM CR-8005A
> P1                    scsi.5.0                 IOMEGA  ZIP 100
> P2                    scsi.4.0                 iomega  jaz 1GB
> P3                    scsi.3.0                 SEAGATE ST11200N SUN1.05
> P4                    scsi.2.0                 SEAGATE ST31230N
> P5                    scsi.1.0                 IBM     0662
>
> b)    Boot from specified device
> s)    Search for bootable devices
> a)    Enter Boot Administration mode
> x)    Exit and continue boot sequence
> ?)    Help
>
> Select from menu: a
> BOOT_ADMIN> info
> ----------------------------- Hardware Configuration
> ------------------------
>
> Machine model: 9000/710
>
> Processor Frequency        = 50000000 Hz
> I/O Subsystem Frequency    = 25000000 Hz
>
> LAN Jumper Status: Internal ThinLAN Port selected
>
> Processor Revision                  = 3
> System Controller Revision          = 0
> Floating Point Coprocessor Revision = 3
>
> Hardware Version            12288     (0x00003000)
> Software Version             1153     (0x00000481)
>
> BOOT_ADMIN> boot alt
>
> Trying scsi.6.0
> Boot path initialized.
> Attempting to load IPL.
>
> Hard booted.
> palo ipl bame@noam Fri Aug  4 18:36:35 MDT 2000
> 0/vmlinux 2349352 bytes @ 0x6e8800
> 0/palo-cmdline '0/vmlinux TERM=linux HOME=/ root=/dev/scd0'
> Kernel: partition 0 file /vmlinux
> ELF32 executable
>
> Entry 00100000 first 00100000 n 4
> Segment 0 load 00100000 size 1511580 mediaptr 0x1000
> Segment 1 load 00272000 size 132368 mediaptr 0x173000
> Segment 2 load 00294000 size 86880 mediaptr 0x194000
> Segment 3 load 002ac000 size 8192 mediaptr 0x1aa000
> branching to kernel entry point 0x00100000
> pdc_cons registered !
> The Kernel has started...
> Free memory starts at: 0xc02dc000
> PALO command line: 'TERM=linux HOME=/ root=/dev/scd0'
> PALO initrd 0-0
> FP CCR was 0x0, will be set to 0xc0
> model   00003000 00000481 00000000 00000000 78243572 00000000 00000004
> 0000000d 00000000
> vers    00000003
> CPUID vers 0 rev 0
> CPU(s): 1 x PA7000 at 50.000000 MHz
> Searching for devices in PDC firmware...  an older box...
> Found devices:
> 1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0,
> 0x77, 0x0, 0x0
> 2. Bushmaster Core BA (11) at 0xf082f000, versions 0x6, 0x0, 0x70, 0x0,
> 0x0
> 3. Bushmaster Core SCSI (10) at 0xf0825000, versions 0x6, 0x0, 0x71,
> 0x0, 0x0
> 4. Bushmaster Core LAN (802.3) (10) at 0xf0826000, versions 0x6, 0x0,
> 0x72, 0x0, 0x0
> 5. Bushmaster Core HIL (10) at 0xf0821000, versions 0x6, 0x0, 0x73, 0x0,
> 0x0
> 6. Bushmaster Core RS-232 (10) at 0xf0823000, versions 0x6, 0x0, 0x75,
> 0x0, 0x0
> 7. Bushmaster Core RS-232 (10) at 0xf0822000, versions 0x6, 0x0, 0x75,
> 0x0, 0x0
> 8. Bushmaster Core Centronics (10) at 0xf0824000, versions 0x6, 0x0,
> 0x74, 0x0, 0x0
> 9. Bushmaster Audio (10) at 0xf1000000, versions 0x6, 0x0, 0x7a, 0x0,
> 0x0
> 10. Bushmaster (710) (0) at 0xfffbe000, versions 0x300, 0x0, 0x4, 0x0,
> 0x81
> 11. Bushmaster (1) at 0xfffbf000, versions 0x16, 0x0, 0x9, 0x0, 0x0
> That's a total of 11 devices.
> Linux version 2.3.99-pre8 (bame@noam) (gcc version 2.96 20000707
> (experimental)) #24 Fri Aug 4 18:27:58 MDT 2000
> initrd: 00000000-00000000
> pagetable_init
> On node 0 totalpages: 16384
> zone(0): 8192 pages.
> zone(1): 8192 pages.
> zone(2): 0 pages.
> trap_init
> Calibrating delay loop... 46.08 BogoMIPS
> Memory: 61380k available
> Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
> Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
> kmem_create: Poisoning requested, but con given - bdev_cache
> Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
> kmem_create: Poisoning requested, but con given - inode_cache
> POSIX conformance testing by UNIFIX
> ASP version 1 at 0xf0800000 found.
> request_irq(259, c01ec76c, 0x0, asp, c3fcd080)
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


--------------EF58A87E4F8EE11A82334529--


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From: James Waterhouse <james.waterhouse@videotron.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] hp 715/50 questions
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Hello,
	I just bought a 715/50 off ebay and I have a few questions about it
that I hope someone can help me with. I've tried to find answers on hp's
site and on the web but have come up with nothing.
	First, the leds on the front of the case are for diagnosing the boot
process right? They have the same function as the beeps from a pc's
bios? If so then does any one know where I can find documentation for
these error codes?
	Secondly, the box I bought was a bare system... no memory and no hard
drive. I know I can put any scsi 2 hard drive in (correct me if I am
wrong) but what about memory? The slots look like 72 pin simm slots but
that means nothing? Do I have to buy special hp memory or what?
	Any help would be greatly apreciated.

Thanks,
James


-- 
Can you discern the signs of the times? || www.danielrevelation.com
Do you see the storm fast approaching?  || www.sundaylaw.com
Is your future built on "The Rock"?     ||
www.bibleinfo.com/sc/toc_sc.html


From - Thu Nov 08 21:13:25 2018
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From: Phil Schwan <pschwan@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Mailing list changes
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Xref: news.gmane.org gmane.linux.ports.parisc:7924

As we start changing things bearing the ``hppa-linux'' name to a more
suitable ``parisc-linux'', I've gone ahead and made the appropriate
changes to the mailing lists and CVS server.  Apologies to those whose
procmail scripts I've broken.

The old aliases (hppa-linux@thepuffingroup.com, hppa-linux-request,
hppa-linux-cvs, etc) are deprecated, and will function for a while
longer.  One should begin using parisc-linux@thepuffingroup.com or one
will be surprised when one's mail bounces at some unspecified point in
the future.

For those of you using CVS, the same situation applies with the
CVSROOT.  :pserver:anonymous@sod.res.cmu.edu:/home/cvs/hppa will work,
but :pserver:anonymous@sod.res.cmu.edu:/home/cvs/parisc is preferred.

-Phil

------------------------------------------------------------------
"In film you will find four basic story lines. Man versus man, man
versus nature, nature versus nature, and dog versus vampire."
        - Steven Spielberg


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] userspace function pointers in the kernel
Date: 12 Sep 2000 16:12:08 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:7925

Hi,

This simple program:

#include <signal.h>

void foo(int signo)
{
	psignal(signo, "foo");
}

int main()
{
	signal(SIGFPE, foo);
	return 0;
}

Now causes the kernel (latest from CVS) to crash where it didn't
before:

Kernel Fault: Code=15 regs=c7c44600 (Addr=00002c04)

PSW  : 0006ff0a  GR 1 : c0233000  GR 2 : c011dcf0  GR 3 : c7c44518  
GR 4 : 20020350  GR 5 : 00000008  GR 6 : 00000007  GR 7 : 00000008  
GR 8 : c7c44600  GR 9 : 2002114c  GR10 : 20020670  GR11 : 00000040  
GR12 : 00000001  GR13 : 00000078  GR14 : 00057000  GR15 : 00057000  
GR16 : 00000063  GR17 : 00000020  GR18 : 2002058c  GR19 : 00000000  
GR20 : 00002c06  GR21 : c7f2387c  GR22 : fffffff8  GR23 : c7f23880  
GR24 : c7c44528  GR25 : c7c44518  GR26 : 00002c04  GR27 : c027a000  
GR28 : fffffff2  GR29 : 00002c06  GR30 : c7c44840  GR31 : c011d7c8  
SR0  : 00002002  SR1  : 00002002  SR2  : 00000000  SR3  : 00002002  
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  

IASQ : 00000000 00000000 IAOQ : c02336a0 c02336a4 ORIG_R28 : 00003fff
 IIR : 075f11d6 ISR : 00000000 IOR : 00002c04

Which is:

c0233698 <$$sh_func_adrs>:
c0233698:       37 5d 00 00     ldo 0(r26),ret1
c023369c:       d7 40 0c 3f     depw r0,30,1,r26
c02336a0:       07 5f 11 d6     probe,w (sr0,r26),r31,r22
                                ^^^^^^^^^^^^^^^^^^^^^^^^^  this insn
c02336a4:       d2 d6 3b ff     extrw,u,= r22,31,1,r22
c02336a8:       0f 40 10 9d     ldw  0(sr0,r26),ret1
c02336ac:       eb e0 c0 02     bv,n r0(r31)

Following the millicode return pointer takes us to do_signal() in
kernel/signal.c, somewhere around these lines:

		if (k->sa.sa_handler == SIG_IGN
		    || (k->sa.sa_handler == SIG_DFL

Note that the kernel is trying to compare a function pointer passed in
from userspace with an arbitrary value.

Now, first of all, this means our DTLB miss handler is broken with
respect to the PROBE instructions.  According to the architecture
manual,

        Notes: If this instruction causes a non-access data TLB miss
        fault/non-access data page fault, the operating system's
        handler is required to search its page tables for the given
        address. If found, it does the appropriate TLB insert and
        returns to the interrupting instruction. If not found, the
        handler must decode the target field of the instruction, set
        that GR to 0, set the IPSW[N] bit to 1, and return to the
        interrupting instruction.

Obviously that's not what's happening here.

Next, even if we *weren't* trapping we would still be doing the wrong
thing, because $$sh_func_adrs is actually supposed to give us the
address of the function's code, and it isn't going to do this since
the function lives in a different space.

In the case of sigaction() I think we actually want to compare the
plabel value (rather than the code address) againsr SIG_IGN and
SIG_DFL.  However there may be other cases where this will break.

Yes this is yet another side effect of the broken PA-RISC run time
architecture.  What do the IA-64 people do about this problem?

In the worst case scenario we may have to hack our millicode in the
kernel somewhat to deal with this.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Cary Coutant <cary@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Incompatibility of PIC and non-PIC
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>Shared libraries work well, but we've got a bigger problem now.  Our
>PIC and non-PIC code models are mutually incompatible in a big way
>(due to the use of %r19 And, it seems, while it's fine if non-PIC
>can't be used in shared libraries, it's not all right if PIC can't be
>linked statically.
> ...
>For that matter how does 32-bit HP/UX solve this issue?

When the HP-UX linker is building an a.out, it converts any r19-relative 
references into dp-relative references by rewriting the instructions. It 
still creates a linkage table entry if necessary (i.e., it doesn't 
rewrite a DLT-indirect reference as a direct dp-relative reference), but 
the linkage table entries are accessed via the dp register instead of r19.


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From: "T. Martin" <catfish@alltel.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] hp 715/50 questions
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 James the Ram on the PA-Risc is proprietary ( I have 4 of these things)
It won't work in a PC and vice versa. 
 I hope you got it cheap (as I did) or else you'll be alittle
disappointed, the 715/50 running seti@home would perform exactly as my
P166 the PA running HP-UX 9.03, PC Linux. 

 Not a super box when the Linux port is done these boxes will serve nicly.


catfish: icq #20116127


On Tue, 12 Sep 2000, James Waterhouse wrote:

> Hello,
> 	I just bought a 715/50 off ebay and I have a few questions about it
> that I hope someone can help me with. I've tried to find answers on hp's
> site and on the web but have come up with nothing.
> 	First, the leds on the front of the case are for diagnosing the boot
> process right? They have the same function as the beeps from a pc's
> bios? If so then does any one know where I can find documentation for
> these error codes?
> 	Secondly, the box I bought was a bare system... no memory and no hard
> drive. I know I can put any scsi 2 hard drive in (correct me if I am
> wrong) but what about memory? The slots look like 72 pin simm slots but
> that means nothing? Do I have to buy special hp memory or what?
> 	Any help would be greatly apreciated.
> 
> Thanks,
> James
> 
> 
> -- 
> Can you discern the signs of the times? || www.danielrevelation.com
> Do you see the storm fast approaching?  || www.sundaylaw.com
> Is your future built on "The Rock"?     ||
> www.bibleinfo.com/sc/toc_sc.html
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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To: catfish@alltel.net (T. Martin)
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I would bet Kingston sells memory for it.  I got memory for a 735 from
them.  You might also try the Newman Group.

>  James the Ram on the PA-Risc is proprietary ( I have 4 of these things)
> It won't work in a PC and vice versa. 

...

> On Tue, 12 Sep 2000, James Waterhouse wrote:
> 
> > Hello,
> > 	I just bought a 715/50 off ebay and I have a few questions about it
> > that I hope someone can help me with. I've tried to find answers on hp's
> > site and on the web but have come up with nothing.

...

> > 	Secondly, the box I bought was a bare system... no memory and no hard
> > drive. I know I can put any scsi 2 hard drive in (correct me if I am
> > wrong) but what about memory? The slots look like 72 pin simm slots but
> > that means nothing? Do I have to buy special hp memory or what?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Cary Coutant <cary@cup.hp.com>
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Subject: Re: [parisc-linux] userspace function pointers in the kernel
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>Next, even if we *weren't* trapping we would still be doing the wrong
>thing, because $$sh_func_adrs is actually supposed to give us the
>address of the function's code, and it isn't going to do this since
>the function lives in a different space.
>
>In the case of sigaction() I think we actually want to compare the
>plabel value (rather than the code address) againsr SIG_IGN and
>SIG_DFL.  However there may be other cases where this will break.
>
>Yes this is yet another side effect of the broken PA-RISC run time
>architecture.

I'm deeply troubled to learn that Linux is using $$sh_func_adrs, as I 
will readily agree with you that it's seriously broken.

It was introduced as a way to compare function pointers reliably, but in 
fact accomplishes exactly the opposite. The problem is that our dynamic 
loader cannot guarantee that two function pointers that both refer to the 
same procedure will compare equal. Rather than fix the dynamic loader, we 
chose to modify the compilers to compare two function pointers by digging 
down into the function descriptor itself to see if they really refer to 
the same function. Unfortunately, not all data items typed as function 
pointers are really valid pointers, and they can't be dereferenced 
safely. Thus, the millicode routine uses the probe instruction to verify 
that the address can be dereferenced without causing a memory fault.

Of course, this isn't 100% reliable on HP-UX, either, since a probe 
failure doesn't mean that the address isn't mapped. It should also be a 
"probe,r" instead of "probe,w".

For Linux, I strongly recommend that the dynamic loader guarantee that 
there is a 1-1 mapping between function and function pointer. If you do 
this, you won't need this silly special case when comparing function 
pointers.

>What do the IA-64 people do about this problem?

On IA-64, the dynamic loader will maintain a 1-1 mapping.

-cary


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Subject: Re: [parisc-linux] userspace function pointers in the kernel
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Cary Coutant <cary@cup.hp.com> writes:

> I wrote:
> >Yes this is yet another side effect of the broken PA-RISC run time
> >architecture.

Hm.  As it turns out it is not the kernel that changed but rather the
linker.  We had previously been generating dynamic procedure
descriptors for PLABEL32 relocations only in shared libraries, but
switched to generating PLT entries for all functions (even in non-PIC
objects, which is a bug) and then pointing the PLABEL32 relocations at
these slots.  Hence I'm forwarding this to Alan.

Of course we would have had the same problem if a shared library had
tried to pass the address of a global function to signal(2), so I
guess it's a good thing we caught it now :-)

> I'm deeply troubled to learn that Linux is using $$sh_func_adrs, as I 
> will readily agree with you that it's seriously broken.
>
> For Linux, I strongly recommend that the dynamic loader guarantee that 
> there is a 1-1 mapping between function and function pointer. If you do 
> this, you won't need this silly special case when comparing function 
> pointers.

I agree that this is a valid goal.  Unfortunately I believe we are
falling short of it at the moment and we'll have to make some fairly
large changes to the toolchain.  If you don't mind I've got a few
questions about how this is done:

It looks like the IA-64 runtime achieves this by generating official
procedure descriptors for every defined function in an object and
placing them in the .opd section, then using these descriptors
whenever the address of a function is taken.  Presumably external
functions are compared using their .IA_64.pltoff entries?  I'm not
clear on how that works and don't have an IA-64 handy to experiment.

I'm also confused about how this interacts with dynamic linking in
another case - from what I've seen the descriptors in .opd are never
relocated, so if a function ends up being bound to another dynamic
object (in the case of weak symbols in shared libraries this can
happen, and we've had to make some adjustments to our linker and
assembler to handle this case since GNU libc relies on this behaviour
in some fundamental ways), it would appear that the .opd entries
become bogus and the pltoff entry (or whatever) should be used
instead.  How does the IA-64 runtime handle this case?

Also I've noticed that GNU libc doesn't actually use the .opd or
.pltoff entries to resolve dynamic FPTR64 relocations but rather
builds FPTRs dynamically when it encounters them.  So the 1-1 mapping
isn't really upheld at all in some cases.

But then HP/UX probably does something else entirely :-)

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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On 12 Sep 2000, David Huggins-Daines wrote:

> Cary Coutant <cary@cup.hp.com> writes:
> > For Linux, I strongly recommend that the dynamic loader guarantee that 
> > there is a 1-1 mapping between function and function pointer. If you do 
> > this, you won't need this silly special case when comparing function 
> > pointers.
> 
> I agree that this is a valid goal.  Unfortunately I believe we are
> falling short of it at the moment and we'll have to make some fairly
> large changes to the toolchain.

David, I think this is the reason we do actually need your dynamic fptr
code, or at least something like it that can sort through plt entries.
Currently, plabels go through the plt whenever dynamic sections are
involved.  However, there is a problem in that we are duplicating plt
entries between the application and shared libs, and I can't think of a
way the linker can avoid this given that we have to deal with weak
symbols.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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Subject: Re: [parisc-linux] Incompatibility of PIC and non-PIC
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On Tue, 12 Sep 2000, Cary Coutant wrote:

> >Shared libraries work well, but we've got a bigger problem now.  Our
> >PIC and non-PIC code models are mutually incompatible in a big way
> >(due to the use of %r19 And, it seems, while it's fine if non-PIC
> >can't be used in shared libraries, it's not all right if PIC can't be
> >linked statically.
> > ...
> >For that matter how does 32-bit HP/UX solve this issue?
> 
> When the HP-UX linker is building an a.out, it converts any r19-relative 
> references into dp-relative references by rewriting the instructions. It 
> still creates a linkage table entry if necessary (i.e., it doesn't 
> rewrite a DLT-indirect reference as a direct dp-relative reference), but 
> the linkage table entries are accessed via the dp register instead of r19.

That's not too bad a hack.  I took a different approach and generate
import stubs when PIC code is detected during a static link.  David, is
there some problem with this (or was this a very old email that Cary was
replying to)?

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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On 12 Sep 2000, David Huggins-Daines wrote:

> Obviously that's wrong :-)
> 
> DYNAMIC RELOCATION RECORDS
> OFFSET   TYPE              VALUE 
> 00002bf8 R_PARISC_IPLT     *ABS*+0x00001270
> 00002bd8 R_PARISC_IPLT     __libc_start_main
> 00002be0 R_PARISC_IPLT     printf
> 00002c00 R_PARISC_IPLT     *ABS*+0x000019b4
> 00000000 R_PARISC_NONE     *ABS*
> 00000000 R_PARISC_NONE     *ABS*

Yeah, _any_ occurrence of a R_PARISC_NONE reloc indicates a linker bug.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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>It looks like the IA-64 runtime achieves this by generating official
>procedure descriptors for every defined function in an object and
>placing them in the .opd section, then using these descriptors
>whenever the address of a function is taken.  Presumably external
>functions are compared using their .IA_64.pltoff entries?  I'm not
>clear on how that works and don't have an IA-64 handy to experiment.

I can't say for sure how Linux/IA-64 uses the .opd section, but the 
runtime and the psABI recommend that the "official" function descriptors 
be created by the dynamic loader as needed in response to dynamic FPTR 
relocations. A function pointer is always loaded from the GOT or from a 
statically-initialized variable, either of which would have been tagged 
with a dynamic FPTR relocation. The dynamic loader will allocate one and 
only one OFD for each function whose address is taken, and resolve each 
function pointer to the address of that OFD. Function pointers can then 
be compared as simple 32- or 64-bit quantities, without worrying about 
the contents of the function descriptor that they point to.

One way of avoiding the dynamic allocation by the dynamic loader is for 
the linker to allocate OFDs statically for each exported function, and 
for each hidden or static function whose address is taken. It looks like 
this may be what Linux is doing on IA-64. The disadvantage is that you 
end up with far more OFDs than you'll ever need, since few functions ever 
really have their addresses taken.

The .pltoff section is for local copies of OFDs that are used by inlined 
import stubs. When the compiler decides that a function is unlikely to 
resolve within the load module, it generates an inlined external call 
sequence, rather than rely on the linker to resolve a direct call to an 
import stub. This inlined sequence needs a local copy of the function 
descriptor to avoid an extra indirection. Since these function 
descriptors never serve as an official function descriptor, it doesn't 
matter that they don't have the same address as an OFD.

Note that the same argument applies to C++ vtables -- we can put copies 
of the function descriptors there, too, since we don't need the pointers 
to vtable entries to be unique.

As an aside, the problem we had on HP-UX/PA was in statically allocating 
the official function descriptors -- the linker allocated OFD 
"candidates" whenever it saw the address of a function get taken. This 
produced multiple candidates for the OFD, and it was possible that none 
of those candidates were actually in the load module where the function 
was defined. Thus, the loader had to choose one arbitrarily, and 
sometimes could be tricked into choosing different ones at different 
times. Hence the problem.

-cary


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From: Phil Schwan <pschwan@thepuffingroup.com>
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Subject: [parisc-linux] Teaching the bootloader to grok ext2
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So, I am told that the firmware has nice ways of telling me things
about the scsi disk geometry and fetching blocks and so on.  Would
someone be able to point me at the appropriate documentation, or at
least give me some general clue about how to go about this?  I'd like
to make the bootloader capable of fetching kernel images from an ext2
filesystem, which Chris and I agreed seems to be the Right Thing to
do.

-Phil

------------------------------------------------------------------
"In film you will find four basic story lines. Man versus man, man
versus nature, nature versus nature, and dog versus vampire."
        - Steven Spielberg


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] userspace function pointers in the kernel
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To: Cary Coutant <cary@cup.hp.com>
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Cary Coutant <cary@cup.hp.com> writes:

> I can't say for sure how Linux/IA-64 uses the .opd section, but the 
> runtime and the psABI recommend that the "official" function descriptors 
> be created by the dynamic loader as needed in response to dynamic FPTR 
> relocations.

Ah, okay, that makes sense.  This is what Linux/IA-64 does - dynamic
FPTR relocations result in OFDs being created dynamically (always, for
both local and global symbols).  And yes, the code in GNU libc does
ensure that they are mapped one-to-one with symbols in each process.

As mentioned earlier we have been trying to decide whether to do this
on PA-RISC as well.  Originally I threw it in so that (you guessed it)
comparisons of function pointers with NULL would work properly :-)

But as Alan says, it looks like we need it for other reasons as well.

> One way of avoiding the dynamic allocation by the dynamic loader is for 
> the linker to allocate OFDs statically for each exported function, and 
> for each hidden or static function whose address is taken.

Hm.  I'm not nearly as familiar with the linker code as I am with the
dynamic linker code, so I'm not sure what it does.  But, as noted
above, GNU libc does dynamic allocation, so it's probably not relevant.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Incompatibility of PIC and non-PIC
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To: Alan Modra <alan@linuxcare.com.au>
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Alan Modra <alan@linuxcare.com.au> writes:

> That's not too bad a hack.  I took a different approach and generate
> import stubs when PIC code is detected during a static link.  David, is
> there some problem with this (or was this a very old email that Cary was
> replying to)?

Very old email, I think.  I don't see a problem with the way we do it
either, though.  Half dozen of one, six of the other...

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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On 12 Sep 2000, David Huggins-Daines wrote:

> Cary Coutant <cary@cup.hp.com> writes:
> 
> > One way of avoiding the dynamic allocation by the dynamic loader is for 
> > the linker to allocate OFDs statically for each exported function, and 
> > for each hidden or static function whose address is taken.
> 
> Hm.  I'm not nearly as familiar with the linker code as I am with the
> dynamic linker code, so I'm not sure what it does.  But, as noted
> above, GNU libc does dynamic allocation, so it's probably not relevant.

Well, I'm more familiar with the linker than the dynamic linker :)

The model I'm thinking of for elf32-hppa is along these lines:

o  The linker creates a plt entry for all plabel relocs.  plt entries for
   elf32-hppa are a function address, linkage table pointer pair, so
   there's no need for the dynamic linker to allocate fptrs.
o  A dynamic plabel reloc will have the function symbol, and an addend
   into the plt.  This is a rather unusual reloc because the function
   symbol value is ignored when calculating the final value.
o  The dynamic linker builds a list or hash table of function symbols
   versus plt offsets, and adjusts plabels so that only one plt entry is
   ever used per function.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: James Waterhouse <james.waterhouse@videotron.ca>
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Subject: Re: [parisc-linux] hp 715/50 questions
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"T. Martin" wrote:
> 
>  James the Ram on the PA-Risc is proprietary ( I have 4 of these things)
> It won't work in a PC and vice versa.

I thought it was but hoped it was not. Thanks for the info. I can get
some memory from kingston. On the site it has a sugested retail price of
$156 US for 32 megs (Kingston #: KTH715/32). A bit pricey but what can I
do.

>  I hope you got it cheap (as I did) or else you'll be alittle

I got for $10 US + shipping (Is that considered cheap?) cause no one
else wanted it.

> disappointed, the 715/50 running seti@home would perform exactly as my
> P166 the PA running HP-UX 9.03, PC Linux.

It's equivalent (aprox) to a P166? That's really not that bad. I'm
running a SPARCstation 1+ that is equivalent to a 386 (486 at most).:)

> 
>  Not a super box when the Linux port is done these boxes will serve nicly.
> 
> catfish: icq #20116127
> 
> On Tue, 12 Sep 2000, James Waterhouse wrote:
> 
> > Hello,
> >       I just bought a 715/50 off ebay and I have a few questions about it
> > that I hope someone can help me with. I've tried to find answers on hp's
> > site and on the web but have come up with nothing.
> >       First, the leds on the front of the case are for diagnosing the boot
> > process right? They have the same function as the beeps from a pc's
> > bios? If so then does any one know where I can find documentation for
> > these error codes?
> >       Secondly, the box I bought was a bare system... no memory and no hard
> > drive. I know I can put any scsi 2 hard drive in (correct me if I am
> > wrong) but what about memory? The slots look like 72 pin simm slots but
> > that means nothing? Do I have to buy special hp memory or what?
> >       Any help would be greatly apreciated.
> >
> > Thanks,
> > James
> >
> >
> > --
> > Can you discern the signs of the times? || www.danielrevelation.com
> > Do you see the storm fast approaching?  || www.sundaylaw.com
> > Is your future built on "The Rock"?     ||
> > www.bibleinfo.com/sc/toc_sc.html
> >
> > ---------------------------------------------------------------------------
> > To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> > `unsubscribe' as the subject.
> >
> >

-- 
Can you discern the signs of the times? || www.danielrevelation.com
Do you see the storm fast approaching?  || www.sundaylaw.com
Is your future built on "The Rock"?     ||
www.bibleinfo.com/sc/toc_sc.html


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From: Manus Hattingh <manush@ite.co.za>
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Subject: [parisc-linux] Dummies Guide
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Hi there,

I have an idle HP 712/60, and I want to install LINUX. My UNIX knowledge is limited to basic file and network operations. Is there a dummies guide to installing LINUX on the HP and do I have to be an expert?

What would the performance be like, in comparison with NT in Intel processors?

Regards

Manus Hattingh
_______________________________________________________
Integrated Technologies Engineering
Natal and Gauteng
Republic of South Africa
e-mail :	manush@ite.co.za
URL    :	www.ite.co.za
s-mail :	ITE
	PO Box 1941
	Richards Bay
	3900
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To: Manus Hattingh <manush@ite.co.za>
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On Wed, 13 Sep 2000, Manus Hattingh wrote:

> Hi there,
> 
> I have an idle HP 712/60, and I want to install LINUX. My UNIX knowledge is limited to basic file and network operations. Is there a dummies guide to installing LINUX on the HP and do I have to be an expert?

http://thepuffingroup.com/parisc/recipe.html

There really isn't an automated installer.  Although it's missing
some bits and pieces, above site has pretty thorough documentations,
at least it'll get you started.  I'm afraid that it may not be "dummy"
friendly though, but give it a try.

> What would the performance be like, in comparison with NT in Intel processors?

Well, parisc linux is still in the works.  Many features are missing
at the moment, so I don't think it's in compare-able (is this a word?)
shape.


Andrew Park
           
________________________________________________________________________ 
CDFlab Systems Administrator                       www.cdf.utoronto.ca |
GnuPG Signature              www.cdf.utoronto.ca/~apark/public_key.txt |
------------------------------------------------------------------------



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From: Cary Coutant <cary@cup.hp.com>
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Subject: Re: [parisc-linux] userspace function pointers in the kernel
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>The model I'm thinking of for elf32-hppa is along these lines:
>
>o  The linker creates a plt entry for all plabel relocs.  plt entries for
>   elf32-hppa are a function address, linkage table pointer pair, so
>   there's no need for the dynamic linker to allocate fptrs.
>o  A dynamic plabel reloc will have the function symbol, and an addend
>   into the plt.  This is a rather unusual reloc because the function
>   symbol value is ignored when calculating the final value.
>o  The dynamic linker builds a list or hash table of function symbols
>   versus plt offsets, and adjusts plabels so that only one plt entry is
>   ever used per function.

This is close to how it works on HP-UX, but we didn't use the table in 
your third bullet, so it became possible for the dynamic loader to come 
up with one function descriptor (PLT entry) one time, and a different one 
the next time.

Another thing you need to watch out for is when a library is dlclosed. 
Because the PLT entries are allocated when you see the reference -- not 
the definition -- you may not have a candidate PLT entry in the load 
module that contains the definition of the function (unless you also 
allocate PLT entries for all exported symbols). This means that you might 
be asked to dlclose a library that contains the PLT entry that is 
currently in use as the official function pointer for a function in 
another load module. If you go ahead and deallocate the library, you're 
hosed.

-cary


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From: James Waterhouse <james.waterhouse@videotron.ca>
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Subject: Re: hp 715/50 questions
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To: Wolfgang Herrfeld <w.herrfeld@vst.net>, parisc-linux@thepuffingroup.com,
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Hello Wolfgang,
	I still have no info on the leds. Any help from you would be greatly
appreciated. (since I have no info as of yet). Also about the ram...
what are the chances of my 715 being hurt if I try pc ram in it? Will I
hurt the hp if I try pc ram in it?

James

p.s. by the way how do I tell ecc ram from normal ram? Is ecc ram the
ram with 9 chips on it?


Wolfgang Herrfeld wrote:
> 
> Hi James,
> 
> first, I can send you docu about the leds and their meaning, but have to search
> in my archiv; second: you can use normal ps/2 ram, but I suggest that ecc
> (error-correction) is needed, what makes it a little more difficult to find such
> modules.
> 
> somehow you can use normal scsi-drives but in rare case it's possible that the
> one or other is causing trouble (not recognised).
> 
> tell me if you've already info about the leds, please ...
> 
> greatings        wolfgang.
> 
> James Waterhouse wrote:
> 
> > Hello,
> >         I just bought a 715/50 off ebay and I have a few questions about it
> > that I hope someone can help me with. I've tried to find answers on hp's
> > site and on the web but have come up with nothing.
> >         First, the leds on the front of the case are for diagnosing the boot
> > process right? They have the same function as the beeps from a pc's
> > bios? If so then does any one know where I can find documentation for
> > these error codes?
> >         Secondly, the box I bought was a bare system... no memory and no hard
> > drive. I know I can put any scsi 2 hard drive in (correct me if I am
> > wrong) but what about memory? The slots look like 72 pin simm slots but
> > that means nothing? Do I have to buy special hp memory or what?
> >         Any help would be greatly apreciated.
> >
> > Thanks,
> > James
> >
> > --
> > Can you discern the signs of the times? || www.danielrevelation.com
> > Do you see the storm fast approaching?  || www.sundaylaw.com
> > Is your future built on "The Rock"?     ||
> > www.bibleinfo.com/sc/toc_sc.html
> >
> > --
> > To UNSUBSCRIBE, email to debian-hppa-request@lists.debian.org
> > with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org

-- 
Can you discern the signs of the times? || www.danielrevelation.com
Do you see the storm fast approaching?  || www.sundaylaw.com
Is your future built on "The Rock"?     ||
www.bibleinfo.com/sc/toc_sc.html


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Summary -----------
Thanks to Ryan Bradetich for asking the right questions...we found
a resource management bug I created in both ccio-dma.c and sba_iommu.c.
Ryan will update ccio-dma.c and I'll do the same for sba_iommu.c
once we've had a chance to test it on the respective machines.

Details -----------
This bug would cause the system to HPMC or corrupt memory if more
than one DMA is outstanding at a time. This generally won't occur
until the system starts multitasking.

Doesn't affect A180 or similar machines w/o an I/O MMU.

The problem is the resource bit map gets out of sync
with the I/O Pdir usage and we can end up using the same I/O
pdir entries for more than one DMA...obivously this won't
work. The symptom will depend on when the first consumer
unmap's the DMA WRT when the second consumer uses it.

sorry,
grant

Index: sba_iommu.c
===================================================================
RCS file: /home/cvs/parisc/linux-2.3/arch/parisc/kernel/sba_iommu.c,v
retrieving revision 1.21
diff -u -p -r1.21 sba_iommu.c
--- sba_iommu.c 2000/08/30 15:43:52     1.21
+++ sba_iommu.c 2000/09/13 20:30:33
@@ -394,7 +394,7 @@ static int sba_alloc_range(struct ioc *i
        ASSERT(pages_order < (BITS_PER_LONG - IOVP_SHIFT));
 
        pages_mask= (u_long) -1L;
-       pages_mask >>= BITS_PER_LONG - pages_order;     /* clear top bits */
+       pages_mask >>= BITS_PER_LONG - pages_needed;    /* clear top bits */
 
 #if 0
        /*


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Function descriptors, etc. (was Re: [parisc-linux] userspace function pointers in the kernel)
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--=-=-=

Alan Modra <alan@linuxcare.com.au> writes:

> The model I'm thinking of for elf32-hppa is along these lines:
> 
> o  The linker creates a plt entry for all plabel relocs.  plt entries for
>    elf32-hppa are a function address, linkage table pointer pair, so
>    there's no need for the dynamic linker to allocate fptrs.
> o  A dynamic plabel reloc will have the function symbol, and an addend
>    into the plt.  This is a rather unusual reloc because the function
>    symbol value is ignored when calculating the final value.
> o  The dynamic linker builds a list or hash table of function symbols
>    versus plt offsets, and adjusts plabels so that only one plt entry is
>    ever used per function.

Reasons why the IA-64 scheme is better:

        a) In the scheme above, we cannot index the list/table by the
        code address of the function in the PLT slot, because the PLT
        will usually not have been relocated at the point when PLABEL
        relocations are being processed.  Thus we have to:

                1) Relocate PLT slots as we encounter them in PLABEL
                   relocations, or
                2) Store a copy of the code address in the table apart
                   from the PLT slot, or
                3) Index the table by the address of the Elf32_Sym
                   structure, by the symbol name (I think this is
                   fraught with peril), or by something else.  This
                   also requires another field in the table apart from
                   the PLT slot.

        b) The IA-64 code uses a one-to-one mapping of function code
        addresses to function descriptors, not symbols to function
        descriptors, and indexes the list/table by the code address.
        I'm not sure whether this is important or not, but something
        tells me it is.

        c) We will still have to dynamically allocate function
        descriptors for symbols obtained with dlopen() and dlsym().
        First of all, we won't have a special PLABEL relocation, so we
        would have to search the PLT of the loaded object "manually".
        Also, think about the case where:

                - libfoo.so defines foo() strongly
                - libfoo2.so defines foo() weakly
                - libfoo2.so defines bar() which calls foo()
                - our program links against libfoo.so and libfoo2.so
                - our program calls foo()
                - our program calls bar()
                - our program dlopen()s libfoo2.so
                - our program calls dlsym(libfoo2, "foo")
                - oops!  the PLT slot for foo() in libfoo2.so points
                  to the strong definition in libfoo.so, so it's
                  useless as a function descriptor.
                - I've attached a tarball of this testcase.  Run it on
                  i386 and IA-64 and see what it does :-)

        d) If we have to dynamically allocate function descriptors as
        well as uniquify relocations to PLT slots, then we basically
        have to duplicate the code in dl-fptr.c, and we lose.
        
Can we please use the IA-64 scheme or something very close to it?
(i.e. closer than what you've proposed, which, in attempting to
implement it in ld.so, does not appear to be close enough) It is
already implemented and debugged, I had it successfully working last
week modulo problems with initializers and finalizers, and I don't see
there being a significant gain in performance or memory usage with the
scheme outlined above.

What I suggest is the following:

* The linker still creates a PLT entry for all PLABEL relocs.  This is
  undoubtedly useful for local symbols, and allows us to take
  advantage of lazy linking for them (potentially a big win in libc.so
  which uses lots and lots of vtables).

* We don't have to generate dynamic function descriptors for PLABEL
  relocations to local symbols because we know that their PLT entries
  are and will remain unique to their code addresses.  Again, a win.

* Dynamic PLABEL relocs will either be *ABS* or .plt relative and
  pointing to the PLT slot for local symbols, or contain the function
  symbol and no addend for global symbols.  For the latter we will
  generate unique function descriptors dynamically using the same code
  as on IA-64.  Yes, we lose 12 bytes of memory per global symbol this
  way.  I don't think that's a big deal given that it allows us to use
  the same code path for these symbols and for dlsym().

* dlsym() will always generate a unique function descriptor dynamically.

I've implemented this and checked it in (it kludges around the addends
on global PLABEL relocations, that is easy to fix :-).  It passes my
other tests but the one below causes the linker to segfault.


--=-=-=
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mRbsgY60tV0p3767c4+NJfTNDhyQgvEu9MeMhkopF+57y4V2ywobUXO3te/s0sKGRAse3kWirwqV
4wmC7bmWX8KhtjfRPboETsAHLCXzX/qan3kcHBwcHBwcHBwcHBwc/0P8CS0V3kYAKAAA
--=-=-=


-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.

--=-=-=--


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From: Craig Hada <chada@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] Qn on PA-RISC Page tables and TLB
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> 
> On Thu, 25 Mar 1999, Craig Hada wrote:
> > > 
> > 
> > In the absense of a harware TLB walker, the page directory format can be
> > structured by software to fit its needs. However, the TLB miss handler
> > must reformat the bits to fit the format of the TLB insert instructions.
> > To get maximum performace from the system, the TLB miss handlers must be
> > made very efficient. The format of the page directory entry in the PA-RISC 
> > Arch 1.1 book minimizes the work of the TLB miss handlers by aligning the
> > fields to match the format of the TLB insert instructions.
> > > 	
> > > 
> Is it necessary that the virtual to physical mappings in TLB be inserted
> only in a tlb miss fault. Can I insert  entries in the anticipation that
> there will be a fault soon, for example when I first enable 
> virtual mode ? If not, there is a potential chicken and egg problem
> because I will get a TLB miss fault as soon as I turn virtual mode on and
> TLB miss fault handler has to run in virtual mode with translations
> on.....and there aint any tranlations yet inserted ...you get the pitcure
> 
> 							-pkd
> 
> 
Under HP-UX, the TLB miss handler runs in real mode (data and code translation
disabled) so there is no need to have a virtual translation for the code 
representing the TLB miss handler or the page directory (both are equivalently
mapped). If a translation is not found in the page directory, then you enter
virtual mode to handle the page fault.

You can speculatively insert entries into the TLB but you also may be
replacing entries that are soon to be used. Since the TLB replacement 
algorithm is not documented, you are probably better off just inserting
the missed upon translation.

-Craig 

> 
> -------------------------------------------------------------------------
> To unsubscribe: send e-mail to hppa-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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From: James Waterhouse <james.waterhouse@videotron.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] interested in helping with the port
Date: Wed, 13 Sep 2000 20:17:17 -0400
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Hello,
	I'm interested in helping with the port. I don't know what I can do
though since I've never really done any kernel programing, I'm just a
C/C++ programmer. I have a HP 715/50 to do things on (well as soon as I
get memory and a hard drive for it... hard drive is not a problem but
the mem maybe). Any way just wanted to introduce myself (James) and
offer to help.

Thanks,
James

p.s. If I can't find a better (cheaper) place to get memory then I'll
just buy it brand new from kingston

-- 
Can you discern the signs of the times? || www.danielrevelation.com
Do you see the storm fast approaching?  || www.sundaylaw.com
Is your future built on "The Rock"?     ||
www.bibleinfo.com/sc/toc_sc.html


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Function descriptors, etc. (was Re: [parisc-linux] userspace
 function pointers in the kernel)
Date: Thu, 14 Sep 2000 11:22:10 +1100 (EST)
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To: David Huggins-Daines <dhd@linuxcare.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:7948

On 13 Sep 2000, David Huggins-Daines wrote:

> Reasons why the IA-64 scheme is better:
>[snip]

Hrmm, you've clearly had more time than I thinking about dynamic linker
issues.  :-)  My scheme of having the linker allocate space for the ld.so
structures necessary to generate unique function pointers can still
work;  It's just that plabels need a full struct hppa_fptr in addition
to our normal plt slot, rather than the measely single word I gave you.
This could have been accomplished simply by changing PLABEL_PLT_ENTRY_SIZE
to 20, and then ld.so wouldn't need those extra mmaps.

However, I guess we should go with what you have David - the time saved by
having the linker allocate space isn't huge, and in fact we might not even
need to mmap since ld.so has 256 fptr slots pre-allocated.

I just ran the following, and found libc.so only needs 63 global fptrs.

readelf -r libc.so | grep PLABEL \
| sed -e 's/.*R_PARISC/R_PARISC/' -e '/PLABEL      /d' -e 's/ *+.*//' \
| sort | uniq

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] userspace function pointers in the kernel
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On Wed, 13 Sep 2000, Cary Coutant wrote:

> allocate PLT entries for all exported symbols). This means that you might 
> be asked to dlclose a library that contains the PLT entry that is 
> currently in use as the official function pointer for a function in 
> another load module. If you go ahead and deallocate the library, you're 
> hosed.

Yup, another reason, this one really solid, to use David's dynamically
allocated fptrs.

Note to David:  Make sure dl-fptr.c:_dl_unmap doesn't have this same
problem, if this function is called on a dlcose.

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Shared native toolchain (and Perl) uploaded, dpkg tarball, Debian packages
Date: 15 Sep 2000 04:00:36 -0400
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Well, it had to happen eventually.

I'm pleased to report that I have a working Perl tarball for PA-RISC
Linux, which means that the dpkg-dev programs and other random Debian
bits that are written in Perl are now functional, which means that we
can build Debian packages!

The toolchain and shared C libraries:

ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/gcc-20000914.tgz
ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/binutils-20000914.tgz
ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/glibc-20000914.tgz

Make sure to remove any existing /usr/hppa-linux directory before
untarring the binutils, or you will get "cannot find crt1.o" from when
linking.

Perl (and gdbm, which it requires):

ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/perl-20000914.tgz
ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/gdbm-20000915.tgz

You will need to run 'ln perl5.00503 perl5.005; ln perl5.00503
perl-5.005' after untarring that to satisfy some scripts.

dpkg:

http://puffin.external.hp.com/~dhd/debian-hppa/dpkg-1.7.0_hppa.nondebbin.tar.gz

You'll have to touch /var/lib/dpkg/available and /var/lib/dpkg/status
for dpkg to work.

It of course goes without saying that to have a useful development
environment you need to have a bunch of other stuff, like shellutils,
textutils, ncurses, ash, etc, etc, etc.  We'll be putting together a
new base system tarball shortly.  Until then you're on your own :(

Pending a proper Debian archive on p.e.h.c, I've started collecting
packages at http://puffin.external.hp.com/~dhd/debian-hppa/.  If they
don't install then use dpkg --force-deps.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 32 bit compiler bug causing kernel crashes
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Xref: news.gmane.org gmane.linux.ports.parisc:7951


I've been investigating a problem that was leading to the kernel executing
a break 0,0 (executing 0) at random times. I've tracked the problem down
to a compiler bug.

When the kernel hit the break instruction it was always at the same
location in the kernel (in __rpc_execute() in net/sunrpc/sched.c).
Since the 0 wasn't on a cache line boundary, and since it was in
kernel text (which isn't modified after palo loads it), I suspected
that the problem was not a cache flush bug, but was instead either
someone directly scribbling on the kernel, or someone dma'ing
into it. In order to eliminate the first possibility I modified the
kernel vm mappings to make the kernel text read only (and added some
code in the trap handler to catch it instead of passing it to
do_page_fault()). Well I caught some code in the act, and it was
quite close to the instruction that was being zero'd:

	c0205b24 <.L1770>:
1--->   c0205b24:       0c 86 12 80     stw  r6,0(sr0,r4)
	c0205b28:       40 73 01 08     ldb 84(sr0,r3),r19
	c0205b2c:       08 b3 02 13     and r19,r5,r19
	c0205b30:       86 60 20 0a     cmpib,=,n 0,r19,c0205b3c <.L1809>
2--->   c0205b34:       e8 5f 1b 85     b,l c02058fc <__rpc_atrun+0x40>,rp
	c0205b38:       34 42 3f d1     ldo -18(rp),rp

	c0205b3c <.L1809>:
3--->   c0205b3c:       0d 00 12 80     stw  r0,0(sr0,r8)


"1--->" above points to the instruction that was being zeroed in error.
"2--->" above is a branch to schedule() (in kernel/sched.c).
"3--->" above is the instruction caught writing into "1--->" above

r8 contained 0xc0205b24. So I wondered how it got that value, since
it should be pointing to the current task structure (current->).
I thought perhaps there was still some old "r8 hack" code around,
and just yesterday I noticed some cruft in entry.S dealing with r8,
but although superfluous, it was not the problem, since the registers
were saved before r8 was used. I checked through all of the trap
paths, and couldn't find anyplace that was trashing r8.

So then I wondered how r8 was always getting 0xc0205b24, and figured that
that value must be used somewhere. I noticed the .L1770 label, and
figured that it must be there for a reason, but I couldn't find a
branch to it. I then noticed the ldo -18(rp),rp after the branch
to schedule. Ooooh, score a point for gcc. That's an optimization I've
never seen in the hp-ux compiler. schedule is in the bottom of a loop,
so this modification of rp in the delay slot causes schedule to return
to the top of the loop, i.e. <.L1770>. This means that 0xc0205b24
is in r2 when schedule is called. So I decided to look at schedule
to see if I could get a clue how the value of r2 was getting transferred
into r8. So here is the code at the beginning of schedule():

	c0114404 <schedule>:
	c0114404:       08 03 02 41     copy r3,r1
	c0114408:       08 1e 02 43     copy sp,r3
4--->   c011440c:       0c 68 12 90     stw  r8,8(sr0,r3)
	c0114410:       08 1e 02 48     copy sp,r8
	c0114414:       6b c2 3f d9     stw rp,-14(sr0,sp)
	c0114418:       08 08 02 53     copy r8,r19
5--->   c011441c:       6f c1 01 00     stw,ma r1,80(sr0,sp)

This is not good. At "4--->" above r8 is being saved above the stack
pointer, i.e. before the stack pointer is incremented at "5--->" above.
This is a compiler bug, and I rebuilt my compiler from top of branch
sources to make sure that it is still there. It is.

For many of you, this is obvious, but just to finish this long winded
story, if an interrupt comes in between "4--->" and "5--->" above, the
stored value of r8 will get trashed because the stack pointer is
still pointing below it. When an interrupt comes in, a trap frame will
be stored starting at the stack pointer, and guess what register is
going to be saved at sp+8? Yep, r2.

John Marvin
jsm@fc.hp.com


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Subject: Re: [parisc-linux] Shared native toolchain (and Perl) uploaded, dpkg tarball, Debian packages
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David Huggins-Daines said:
[ lots of good stuff ]
> ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/perl-20000914.tgz

I don't see this one ... not in that directory, not in ./old/ or ../tgz/
either.  Was it taken down or did it not quite make it up?  =)

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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Subject: Re: [parisc-linux] Shared native toolchain (and Perl) uploaded, dpkg tarball, Debian packages
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Andrew Shugg <andrew@neep.com.au> writes:

> David Huggins-Daines said:
> [ lots of good stuff ]
> > ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/perl-20000914.tgz
> 
> I don't see this one ... not in that directory, not in ./old/ or ../tgz/
> either.  Was it taken down or did it not quite make it up?  =)

Oops.  My public_html dir is 403 too.  Chalk it up to working at 3AM.

Should be fixed now.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] 32 bit compiler bug causing kernel crashes
Date: 15 Sep 2000 13:43:10 -0400
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John Marvin <jsm@udlkern.fc.hp.com> writes:

> I've been investigating a problem that was leading to the kernel executing
> a break 0,0 (executing 0) at random times. I've tracked the problem down
> to a compiler bug.

Cool.  Strangely enough I don't see this in 2.3.99pre8, only in 2.4.
The problem with userspace executing zero at random times is obviously
something else.

> So here is the code at the beginning of schedule():
> 
> 	c0114404 <schedule>:
> 	c0114404:       08 03 02 41     copy r3,r1
> 	c0114408:       08 1e 02 43     copy sp,r3

Hm.  This bit above puzzles me, because I thought the kernel was
either compiled with -fomit-frame-pointer, or with sufficient
optimization that the frame pointer would be omitted anyway.

> 4--->   c011440c:       0c 68 12 90     stw  r8,8(sr0,r3)
> 	c0114410:       08 1e 02 48     copy sp,r8
> 	c0114414:       6b c2 3f d9     stw rp,-14(sr0,sp)
> 	c0114418:       08 08 02 53     copy r8,r19
> 5--->   c011441c:       6f c1 01 00     stw,ma r1,80(sr0,sp)

Wow.  That is some unbelievably screwed up register spilling.  In fact
I suspect that this may be a reload bug.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: New Cross-Compiler, userspace tarballs, and Debian packages (was Re: 
 [parisc-linux] Shared native toolchain (and Perl) uploaded, dpkg tarball, 
 Debian packages)
Date: Fri, 15 Sep 2000 19:37:48 -0600
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To: David Huggins-Daines <dhd@linuxcare.com>
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   of "15 Sep 2000 04:00:36 EDT." <87r96mgk4b.fsf@linuxcare.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:7955

I have put a new LinuxX86 -> hppa/hppa64 cross-compiler tarball at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20000915.tar.gz

This tarball contains 32 bit binutils, gcc, and glibc and 64 bit binutils and 
gcc. So you can use it to compile both 32 bit userspace apps and 32 bit and 64 
bit kernels.

David Huggins-Daines writes...

> Pending a proper Debian archive on p.e.h.c, I've started collecting
> packages at http://puffin.external.hp.com/~dhd/debian-hppa/.  If they
> don't install then use dpkg --force-deps.

I've created a semi-proper debian archive accessible at,

http://puffin.external.hp.com/debian-hppa
and
ftp://puffin.external.hp.com/pub/debian-hppa

and I have added debs for all the things I've been cross compiling that David 
has not build native debs for.

I have also made the same available as tarballs in,

ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com



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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] Shared native toolchain (and Perl) uploaded, dpkg tarball, Debian packages
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David Huggins-Daines said:
> Perl (and gdbm, which it requires):
> 
> ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/perl-20000914.tgz
> ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/gdbm-20000915.tgz
> 
> You will need to run 'ln perl5.00503 perl5.005; ln perl5.00503
> perl-5.005' after untarring that to satisfy some scripts.

A quick note for those who might just be cut & pasting the URLs to
ncftpget like I was ... the perl tarball ends with 'tar.gz' not 'tgz'.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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From: Phil Schwan <pschwan@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New cross compiling binutils available
Date: Mon, 29 Mar 1999 12:57:55 -0500
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For the developers in the crowd, I just moved new binutils RPMs onto
the FTP site.  They fix a double free that Nat found that would make
the linker crash when building the kernel.

-Phil

------------------------------------------------------------------
"In film you will find four basic story lines. Man versus man, man
versus nature, nature versus nature, and dog versus vampire."
        - Steven Spielberg


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From: Romain Dolbeau <dolbeaur@club-internet.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Netbooting a 710 : IPX ?
Date: Sat, 16 Sep 2000 15:10:16 +0100
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Hello,

I've trouble netbboting my 710 : it seems that it doesn't
broadcast bootp request, but some IPX Service Advertisement
Protocol stuff...

here's what tcpdump has to say :

#####
tcpdump: listening on hme0
14:31:31.864970 8:0:9:25:bd:de 8:0:20:86:f0:d3 0029 55: sap f8 ui/C
>>> Unknown IPX Data: (38 bytes)
[000] 00 00 00 06 08 06 09 01  00 00 00 00 00 FF FF 00  ........
........
[010] 02 48 50 53 37 30 30 20  20 20 20 20 20 20 20 20  .HPS700          
[020] 20 20 20 20 20 00                                      . 
 len=38
                         f8f8 0300 0000 0608 0609 0100 0000 0000
                         ffff 0002 4850 5337 3030 2020 2020 2020
                         2020 2020 2020 2020 00
14:31:53.778428 8:0:9:25:bd:de 9:0:9:0:0:4 0029 55: sap f8 ui/C
>>> Unknown IPX Data: (38 bytes)
[000] 00 00 00 06 08 06 09 01  00 00 00 00 00 FF FF 00  ........
........
[010] 02 48 50 53 37 30 30 20  20 20 20 20 20 20 20 20  .HPS700          
[020] 20 20 20 20 20 00                                      . 
 len=38
                         f8f8 0300 0000 0608 0609 0100 0000 0000
                         ffff 0002 4850 5337 3030 2020 2020 2020
                         2020 2020 2020 2020 00
#####

8:0:9:25:bd:de is the hp710
8:0:20:86:f0:d3 is the bootpd host (a Sun Ultra 1)

Does anyone know :

# if it's possible to make this 710 behave properly
 (i.e. use IP)

# or to netboot using IPX (I can use Solaris/sparc
 or NetBSD/sparc for netbooting, I could probably
 add Linux/sparc to the list)

Thanks in advance,

-- 
DOLBEAU Romain
ENS Cachan / Ker Lann
Thesard IRISA / CAPS
dolbeaur@club-internet.fr


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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] Netbooting a 710 : IPX ?
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Romain Dolbeau said:
> I've trouble netbboting my 710 : it seems that it doesn't
> broadcast bootp request, but some IPX Service Advertisement
> Protocol stuff...

I think you will need 'rbootd' running to answer the initial request,
which then hands over to bootpd.

 The rbootd daemon is used for booting some HP workstations
 over the network (such as the 9000/300 and 9000/400 series).
 It can also boot PA RISC workstations.  It handles the first
 stage of the boot sequence and can be used to start booting
 Linux, NetBSD or HPUX.

(Debian GNU/Linux rbootd package description.)

There is a build on ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/
but I don't know for which architecture and OS.  =)  You shouldn't have
any trouble finding a package or the source to build for your platform.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New native toolchain and glibc tarballs, upgrade
Date: 16 Sep 2000 20:16:40 -0400
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There are new 20000916 gcc, binutils, and glibc tarballs on the FTP
site (puffin.external.hp.com:/pub/parisc/binaries/userspace).
Upgrading glibc, at least, is highly recommended as this one fixes a
stupid bug that was preventing initializers in shared libraries from
being run (and thus made apt-get crash, which it doesn't anymore).

You'll also notice that binutils got smaller (because it now uses
shared libbfd and libopcodes) and GCC got larger (because it now has a
shared libstdc++.so).

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: New Cross-Compiler, userspace tarballs, and Debian packages (was Re:  [parisc-linux] Shared native toolchain (and Perl) uploaded, dpkg tarball,  Debian packages)
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Matt Taggart <taggart@carmen.fc.hp.com> writes:

> and I have added debs for all the things I've been cross compiling that David 
> has not build native debs for.

I went and made this apt-able.  (Yes, we have apt now, you need the
latest glibc and gcc tarballs to run it though).  The correct
sources.list invocation for it is:

deb http://puffin.external.hp.com/ debian-hppa/

Matt: I put dpkg-scanpackages and other dpkg programs and libs in
~dhd/{bin,lib}, if you want to use them.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: New Cross-Compiler, userspace tarballs, and Debian packages...
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David Huggins-Daines wrote:
...
> I went and made this apt-able.  (Yes, we have apt now, you need the
> latest glibc and gcc tarballs to run it though).

Mott or David,
Do we have a recipe to install all the stuff posted so far?

I'm pretty sure the README.INSTALL on the v0.1 CD isn't useful
for apt-getting. I can help develope/update to a new install recipe.

I'm still using NFSROOT and feel "behind the times" despite being
in the middle of most of the developement. I suspect many others
could help us test/use/build on their respective boxes if the
install process were obvious.

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Romain Dolbeau <dolbeaur@club-internet.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Netbooting a 710 : IPX ?
Date: Sun, 17 Sep 2000 13:51:32 +0100
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Andrew Shugg wrote:

> I think you will need 'rbootd' running to answer the initial request,
> which then hands over to bootpd.
[snip]
> There is a build on ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/
> but I don't know for which architecture and OS.  =)  You shouldn't have
> any trouble finding a package or the source to build for your platform.


5116@telia.com wrote:

> The 710 and other early HP9000s dont use bootp, but rboot. There is a
> rboot server on puffin.external.hp.com pub/parisc/binaries/tgz/rbootd-2.0-2.tar.gz


Thanks to the both of you, rbootd was indeed the answer. No IPX
anywhere to be seen, I should spend more time trying to understand
tcpdump :-/

There's a (very old but working after minor patching) sun-rbootd 
package on the web, that works fine on Solaris 7, if anyone is
interested.

I have now two HP ready to run, one 710 (64 MB Ram, dual 420 MB disks)
and one 715 (56 MB Ram, 2 GB disk). If there's any need to test
stuff on these platforms, feel free to ask (but it's unlikely
I'll find much free time except maybe on Saturday/Sunday).

thanks for the help,

-- 
DOLBEAU Romain
ENS Cachan / Ker Lann
Thesard IRISA / CAPS
dolbeaur@club-internet.fr


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From: Erik Paulson <epaulson@upl.cs.wisc.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C100 and ccio-dma
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Hi,
	Using the CVS kernel on a C100 I'm seeing it die with an out-of-mapping
resources error from ccio-dma.c. It looks like there's been some active 
development there about a week ago, but it's not helping my machine. The 
quickest way for me to bring it about is to try and use mke2fs, but just
mounting the CD and running a few commands will oftentimes do the trick.

How can I help debug this? There's really no useful information provided by
the printk now - is there some sort of debugging info I could be collecting,
or would a backtrace help?

Thanks

-Erik


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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C100 and ccio-dma
Date: Thu, 21 Sep 2000 20:44:10 -0600
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Erik,

I also have that problem on the C200+, but it isn't a ccio-dma.c problem
(atleast I don't think it is) ... I believe it is a sym53cxx driver problem.  I
have already started tracking this down, and hopefully will have time to
find and squash the bug this weekend.

hope this helps!

Ryan

Erik Paulson wrote:

> Hi,
>         Using the CVS kernel on a C100 I'm seeing it die with an out-of-mapping
> resources error from ccio-dma.c. It looks like there's been some active
> development there about a week ago, but it's not helping my machine. The
> quickest way for me to bring it about is to try and use mke2fs, but just
> mounting the CD and running a few commands will oftentimes do the trick.
>
> How can I help debug this? There's really no useful information provided by
> the printk now - is there some sort of debugging info I could be collecting,
> or would a backtrace help?
>
> Thanks
>
> -Erik
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] internal error in tc-hppa.c?
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Hi all,
I crashed the assembler with the following output:

make[1]: Entering directory `/linux/kwdb64/linux-2.3/arch/parisc64/kernel'
hppa64-linux-gcc -I/linux/kwdb64/linux-2.3/include   -D__KERNEL__ -I/linux/kwdb64/linux-2.3/include  -c -o entry.o entry.S
entry.S: Assembler messages:
entry.S:1: Internal error, aborting at /linux/pa32/binutils-2.10/gas/config/tc-hppa.c line 4017 in tc_gen_reloc
Please report this bug.
make[1]: *** [entry.o] Error 1
make[1]: Leaving directory `/linux/kwdb64/linux-2.3/arch/parisc64/kernel'


I was told entry.S is broken but the assembler should handle it
more gracefully...so I'll be looking at entry.S to see what's broken.

Line number of entry.S is junk since parisc64 version is just
an include of the parisc version. line 1560 is the real culprit:
        b,n .

Trying to figure out what the problem is now...

grant


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Grant Grundler wrote:
...
> I was told entry.S is broken but the assembler should handle it
> more gracefully...so I'll be looking at entry.S to see what's broken.
> 
> Line number of entry.S is junk since parisc64 version is just
> an include of the parisc version. line 1560 is the real culprit:
>         b,n .

More data:
o adding a NOP didn't help.
o slightly older hppa64-linux tool chain can build the same file.
o looking at line 4017 of tc-hppa.c suggests hppa_gen_reloc_type() failed.

I'll continue using the older toolchain...

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Xref: news.gmane.org gmane.linux.ports.parisc:7968

Re:

> let's think what is less efficient: extra mapped page, or
> extra indirrect ptr reference?
> my point is, why map extra page (and waiste extra page) ?
> one page is 128 page dir entries, hehe (; returning to the pd discussion)

If you're talking about the gateway page, if you don't actually *allocate*
a page, but simply rely on the trap that occurs when you try to jump to it,
then there's 0 storage cost for the extra mapped page approach...no TLB
entry, no entries in other data structures.  The only cost is the
additional CPU time in the TLB miss handler to say:

   if isr.ior = 0xc0000400 (or whatever)
      then handle system call attempt
   else
      handle TLB miss

BTW, the extra cost of doing a system call mechanism via a non-mapped gateway page
vs. using a GATE instruction is about 5 microseconds on a 32MHz machine.
 
-- 
Stan Sieler                                          sieler@allegro.com
                                     http://www.allegro.com/sieler.html


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Grant Grundler wrote:
> o slightly older hppa64-linux tool chain can build the same file.

Both 20000915 or 20000921 toolchains die with the same problem.
So I couldn't reproduce what I stated above.

Back too looking at entry.S file and it's include files...<sigh>

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Grant Grundler wrote:

> I was told entry.S is broken but the assembler should handle it
> more gracefully...so I'll be looking at entry.S to see what's broken.

This was correct - in a twisted sense (tnx dhd!).
Case closed. Details and minor rant follow.


> Line number of entry.S is junk since parisc64 version is just
> an include of the parisc version. line 1560 is the real culprit:
>         b,n .

This is the last line of the file...adding NOP moved the error
to the nop.


The problem was the following change to arch/parisc/tools/offset.c:

| revision 1.9
| date: 2000/09/22 13:36:58;  author: jsm;  state: Exp;  lines: +12 -1
| Put in offset for processor field in task structure. Put in offset for
| elements of irq_cpustat_t which are used in assembly for processing
| software interrupts.

It was NOT ported to arch/parisc64/tools/offset.c.

jsm added TASK_PROCESSOR definitions *and* used them in entry.S.
entry.S is common between parisc and parisc64 while offset.c is not.

[/rant on]
Having to track this down the hard way cost me ~3 hours.
Especially since Paul Bame and I were suspicious about
our recent changes to assembly.h...so if the error reported
could be more informative (ie which symbol failed),
it'd have been easy to figure out.
{/rant off]

Could someone who has a clue about tc-hppa.c improve the
error reporting for this case?
I'm certain we are going to see this again...

thanks,
grant

ps. I've ported the changes to parisc64/tools/offset.c and
   will commit them shortly.

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Ryan Bradetich wrote:
> Erik,
> 
> I also have that problem on the C200+, but it isn't a ccio-dma.c problem
> (atleast I don't think it is) ... I believe it is a sym53cxx driver problem.

Ryan,
Here's the output from me (accidentally) booting a 32-bit kernel
on a c3k. It seems sym53c8xx passed a non-kernel address to get mapped...
or the ASSERT statement is bogus (checking too many bits).
Anyway, something to look at.

grant


Main Menu: Enter command > bo lan
Interact with IPL (Y, N, Q)?> n

Booting... 
Network Station Address 001083-360089

System IP Address 15.8.80.77
Server IP Address 15.8.81.247

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@hpisp747 Tue Sep 12 20:36:36 PDT 2000
0/vmlinux 2014327 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa '
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 001000e8 first 00100000 n 4
Segment 0 load 00100000 size 1395112 mediaptr 0x1000
Segment 1 load 00256000 size 177736 mediaptr 0x156000
Segment 2 load 00284000 size 98464 mediaptr 0x182000
Segment 3 load 002a0000 size 8192 mediaptr 0x19b000
branching to kernel entry point 0x001000e8
Set default PSW W bit to 0
PDC Console Initialized
The Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02d1000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa '
PALO initrd 0-0
model   00005bb0 00000481 00000000 00000002 77cd9463 100000f0 00000008 000000b2 000000b2
vers    00000200
cpuid   00000224
CPUID vers 17 rev 4
CPU might be a PA8500 (PCX-W)
CPU(s): 1 x PA8500 (PCX-W) at 400.000000 MHz
Searching for devices in PDC firmware... processor hpa 0xfffa0000
a newer box...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
2. Elroy PCI Bridge (13) at 0xfed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
3. Elroy PCI Bridge (13) at 0xfed32000, versions 0x782, 0x0, 0xa, 0x0, 0x0
4. Elroy PCI Bridge (13) at 0xfed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
5. Elroy PCI Bridge (13) at 0xfed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. AllegroHigh W  (0) at 0xfffa0000, versions 0x5bb, 0x0, 0x4, 0x0, 0x81
7. AllegroHigh Memory (1) at 0xfed10200, versions 0x86, 0x0, 0x9, 0x0, 0x0
That's a total of 7 devices.
Linux version 2.4.0-test6 (grundler@hpisp747) (gcc version 2.96 20000822 (experimental)) #20 Fri Sep 22 14:03:01 PDT 2000
free_bootmem(0x2d5000, 0x1fd2b000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 131072
zone(0): 65536 pages.
zone(1): 65536 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa 
trap_init
Calibrating delay loop... 799.54 BogoMIPS
Memory: 511636k available
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
POSIX conformance testing by UNIFIX
lba version TR2.1 (0x2) found at 0xfed30000
lba_fixup_bus(0xdffef7e0) bus 0 sysdata 0xdfffa220
lba version TR2.1 (0x2) found at 0xfed32000
lba_fixup_bus(0xdffef860) bus 1 sysdata 0xdfffa260
lba version TR2.1 (0x2) found at 0xfed38000
lba_fixup_bus(0xdffef8e0) bus 2 sysdata 0xdfffa2a0
lba version TR2.1 (0x2) found at 0xfed3c000
lba: iosapic_register says not used
Warning : device (13, 0x782, 0x0, 0xa, 0x0) NOT claimed by lba TR2.1
SBA found Astro 2.1 at 0xfed00000
lba_init_iregs() ibase 0x1 imask 0xf0000000
lba_init_iregs() base_addr fed38000
lba_init_iregs() base_addr fed32000
lba_init_iregs() base_addr fed30000
lba_init_iregs() done
lba: lba_bios_init
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 32768)
Starting kswapd v1.7
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sym53c8xx: at PCI bus 1, device 5, function 0
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 15, function 0
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 15, function 1
sym53c8xx: 53c896 detected 
sym53c875-0: rev 0x3 on pci bus 1 device 5 function 0 irq 769

sba_iommu.c:587: Assertion ((u_long) vba & 0xf0000000UL) == 0xc0000000UL failed!
Kernel panic: ((u_long) vba & 0xf0000000UL) == 0xc0000000UL


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Xref: news.gmane.org gmane.linux.ports.parisc:7972

Grant Grundler wrote:
> Here's the output from me (accidentally) booting a 32-bit kernel
> on a c3k. It seems sym53c8xx passed a non-kernel address to get mapped...
> or the ASSERT statement is bogus (checking too many bits).

Bogus ASSERT. This c3k has more than 256M of memory and thus
some of the bits can be valid...fixing.

grant

ps. here's the new output:
Main Menu: Enter command > bo lan
Interact with IPL (Y, N, Q)?> n

Booting... 
Network Station Address 001083-360089

System IP Address 15.8.80.77
Server IP Address 15.8.81.247

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@hpisp747 Tue Sep 12 20:36:36 PDT 2000
0/vmlinux 2014327 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa '
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 001000e8 first 00100000 n 4
Segment 0 load 00100000 size 1395112 mediaptr 0x1000
Segment 1 load 00256000 size 177736 mediaptr 0x156000
Segment 2 load 00284000 size 98464 mediaptr 0x182000
Segment 3 load 002a0000 size 8192 mediaptr 0x19b000
branching to kernel entry point 0x001000e8
Set default PSW W bit to 0
PDC Console Initialized
The Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02d1000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa '
PALO initrd 0-0
model   00005bb0 00000481 00000000 00000002 77cd9463 100000f0 00000008 000000b2 000000b2
vers    00000200
cpuid   00000224
CPUID vers 17 rev 4
CPU might be a PA8500 (PCX-W)
CPU(s): 1 x PA8500 (PCX-W) at 400.000000 MHz
Searching for devices in PDC firmware... processor hpa 0xfffa0000
a newer box...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
2. Elroy PCI Bridge (13) at 0xfed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
3. Elroy PCI Bridge (13) at 0xfed32000, versions 0x782, 0x0, 0xa, 0x0, 0x0
4. Elroy PCI Bridge (13) at 0xfed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
5. Elroy PCI Bridge (13) at 0xfed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. AllegroHigh W  (0) at 0xfffa0000, versions 0x5bb, 0x0, 0x4, 0x0, 0x81
7. AllegroHigh Memory (1) at 0xfed10200, versions 0x86, 0x0, 0x9, 0x0, 0x0
That's a total of 7 devices.
Linux version 2.4.0-test6 (grundler@hpisp747) (gcc version 2.96 20000822 (experimental)) #21 Fri Sep 22 14:52:45 PDT 2000
free_bootmem(0x2d5000, 0x1fd2b000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 131072
zone(0): 65536 pages.
zone(1): 65536 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa 
trap_init
Calibrating delay loop... 799.54 BogoMIPS
Memory: 511636k available
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
POSIX conformance testing by UNIFIX
lba version TR2.1 (0x2) found at 0xfed30000
lba_fixup_bus(0xdffef7e0) bus 0 sysdata 0xdfffa220
lba version TR2.1 (0x2) found at 0xfed32000
lba_fixup_bus(0xdffef860) bus 1 sysdata 0xdfffa260
lba version TR2.1 (0x2) found at 0xfed38000
lba_fixup_bus(0xdffef8e0) bus 2 sysdata 0xdfffa2a0
lba version TR2.1 (0x2) found at 0xfed3c000
lba: iosapic_register says not used
Warning : device (13, 0x782, 0x0, 0xa, 0x0) NOT claimed by lba TR2.1
SBA found Astro 2.1 at 0xfed00000
lba_init_iregs() ibase 0x1 imask 0xf0000000
lba_init_iregs() base_addr fed38000
lba_init_iregs() base_addr fed32000
lba_init_iregs() base_addr fed30000
lba_init_iregs() done
lba: lba_bios_init
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 32768)
Starting kswapd v1.7
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sym53c8xx: at PCI bus 1, device 5, function 0
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 15, function 0
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 15, function 1
sym53c8xx: 53c896 detected 
sym53c875-0: rev 0x3 on pci bus 1 device 5 function 0 irq 769
sym53c875-0: NCR clock is 40218KHz
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xf4901000
sym53c875-0: restart (scsi reset).
sym53c875-0: Downloading SCSI SCRIPTS.
sym53c896-1: rev 0x4 on pci bus 0 device 15 function 0 irq 513
sym53c896-1: NCR clock is 40218KHz
sym53c896-1: ID 7, Fast-40, Parity Checking
sym53c896-1: on-chip RAM at 0xf4002000
sym53c896-1: suspicious SCSI data while resetting the BUS.
sym53c896-1: dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,atn,msg,c/d,i/o = 0x4000100, expecting 0x100
sym53c896-1: FATAL ERROR: CHECK SCSI BUS - CABLES, TERMINATION, DEVICE POWER etc.!
sym53c896-1: giving up ...
kernel BUG at sym53c8xx.c:719!
sym53c896-1: rev 0x4 on pci bus 0 device 15 function 1 irq 513
sym53c896-1: NCR clock is 40218KHz
sym53c896-1: ID 7, Fast-40, Parity Checking
sym53c896-1: on-chip RAM at 0xf4000000
sym53c896-1: restart (scsi reset).
sym53c896-1: handling phase mismatch from SCRIPTS.
sym53c896-1: Downloading SCSI SCRIPTS.
scsi0 : sym53c8xx - version 1.6b
scsi1 : sym53c8xx - version 1.6b
scsi : 2 hosts.
  Vendor: SEAGATE   Model: ST39102LC         Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi1, channel 0, id 6, lun 0
sym53c896-1-<6,0>: tagged command queue depth set to 8
scsi : detected 1 SCSI disk total.
sym53c896-1-<6,0>: wide msgout: 1-2-3-1.
sym53c896-1-<6,0>: wide msgin: 1-2-3-1.
sym53c896-1-<6,0>: wide: wide=1 chg=0.
sym53c896-1-<6,0>: wide msgout: 1-2-3-1.
sym53c896-1-<6,0>: wide msgin: 1-2-3-1.
sym53c896-1-<6,0>: wide: wide=1 chg=0.
sym53c896-1-<6,0>: sync msgout: 1-3-1-c-1f.
sym53c896-1-<6,0>: sync msg in: 1-3-1-c-f.
sym53c896-1-<6,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=15 fak=0 chg=0.
sym53c896-1-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sda: hdwr sector= 512 bytes. Sectors= 17773524 [8678 MB] [8.7 GB]
Partition check:
 sda: unknown partition table
Serial driver version 5.01 (2000-05-29) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Linux Tulip driver version 0.9.8 (July 13, 2000)
pcibios_enable_device: Enabling device 00:0c.0 (0057 -> 0157)
eth0: Digital DS21143 Tulip rev 48 at 0x1000, 00:10:83:36:00:89, IRQ 514.
eth0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 15.8.81.247, my address is 15.8.80.77
Switching from PDC console


PDC Console Initialized
Switched to PDC console

Dumping Stack from e0000000 to e00002c0:

Dumping Stack from c025c000 to c025d680:
c000 08000081 00000090 00000000 c0220ad4 08000082 00000090 00000000 c0220aec
c020 08000083 00000090 00000000 c0220b00 08000084 00000090 00000000 c0220b14
c040 08000085 00000090 00000000 c0220b28 08000086 00000090 00000000 c0220b38
c060 08000087 00000090 00000000 c0220b4c 08000088 00000090 00000000 c0220b60
c080 08000089 00000090 00000000 c0220b70 0800008a 00000090 00000000 c0220818
c0a0 0800008b 00000090 00000000 c0220830 08000090 00000090 00000000 c0220b80
c0c0 08000091 00000090 00000000 c0220b94 080007ff 00000090 00000000 c0220ba4
c0e0 08000800 00000090 00000000 c021ad10 08000801 00000090 00000000 c021ad00
c100 080008ff 00000090 00000000 c0220bb4 08000091 00000090 00000000 c0220bc8
c120 08000092 00000090 00000000 c0220bd8 08000093 00000090 00000000 c0220be8
c140 08000094 00000090 00000000 c0220bfc 08000095 00000090 00000000 c0220c10
c160 08000096 00000090 00000000 c0220c24 08000097 00000090 00000000 c0220c38
c180 08000098 00000090 00000000 c0220c4c 08000099 00000090 00000000 c0220c64
c1a0 0800009a 00000090 00000000 c0220c7c 0800009b 00000090 00000000 c0220c94
c1c0 30000004 00000300 00000000 c0220ca8 30000004 00000340 00000000 c0220cb0
c1e0 30000004 00000380 00000000 c0220cb8 30000004 00000490 00000000 c021b1b4
c200 00000000 00000000 00000000 00000000 01820ffe 00000000 01000ff0 00000000
c220 00800ff0 00000000 00000ff0 00000000 03000ffc 00000001 02800ffc 00000001
c240 02020fff 00000001 02000ffe 00000001 04000ff0 00000002 03200ff0 00000002
c260 03100ff0 00000002 02880fff 00000002 02840ffc 00000002 02040ffc 00000002
c280 02030fff 00000002 01820ffe 00000002 06100ff0 00000004 06000ff0 00000004
c2a0 00480ff0 00000004 04800ff0 00000004 05a00ffe 00000003 058e0fff 00000003
c2c0 058c0ffe 00000003 05880ffc 00000003 05800ff8 00000003 05920fff 00000003
c2e0 059e0fff 00000003 05b30fff 00000006 01840fff 00000006 059c0ffe 00000006
c300 05980ffc 00000006 05940ffc 00000006 05930fff 00000006 05900ffe 00000006
c320 058f0fff 00000006 059f0fff 00000006 05a40ffc 00000006 05a80ffc 00000006
c340 05a20ffe 00000006 05b20fff 00000007 05b60ffe 00000007 05b00ffe 00000007
c360 05ae0ffe 00000007 05ad0fff 00000007 05b50fff 00000007 05ba0fff 00000007
c380 05b80ffe 00000007 05b40fff 00000008 05bb0fff 00000008 05bc0ffc 00000008
c3a0 05c00fc0 00000008 05100ff0 00000005 05000ff0 00000005 00000000 00000000
c3c0 c0220d54 c0220d44 c0220d34 c0220d24 c0220d10 c0220cfc c0220cec c0220cdc
c3e0 c0220ccc c0220cbc 00000000 00000000 00000000 00000000 00000000 00000000
c400 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c420 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c440 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c460 00000000 00000000 00000000 00000000 00000007 00000000 00000000 00000000
c480 00000008 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c500 c010b10c c010b2e8 c010b58c c010b5a8 c010b5d0 c010b5d4 c010b62c c010b630
c520 c010b648 c010b10c c010b660 c010b668 c010b5a8 c010b5d0 c010b5d4 c010b62c
c540 c010b630 c010b648 00000000 00000000 00000000 00000000 00000000 00000000
c560 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c580 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c5a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c5c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c5e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c600 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c620 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c640 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c660 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c680 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c6a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c6c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c6e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c700 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c720 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c740 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c760 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c780 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c7a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c7c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c7e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c800 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c820 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c840 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c860 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c880 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c8a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c8c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c8e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c900 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c920 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c940 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c960 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c980 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c9a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c9c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c9e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ca00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ca20 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ca40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ca60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ca80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
caa0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cac0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cae0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cb00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cb20 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cb40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cb60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cb80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cba0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cbc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cbe0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cc00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cc20 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cc40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cc60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cc80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cca0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ccc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cce0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cd00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cd20 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cd40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cd60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cd80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cda0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cdc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cde0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ce00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ce20 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ce40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ce60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ce80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cea0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cec0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cee0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cf00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cf20 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cf40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cf60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cf80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cfa0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cfc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cfe0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d020 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d040 00000000 00000000 00000000 00269000 00000000 00000000 00000000 00000000
d060 00000000 00000000 00000000 00107128 00000000 00000000 00000000 00000000
d080 00000000 00000000 c0217430 dfffe000 dffffe58 c02a61db 00000008 00000001
d0a0 e0000024 00000380 00000002 0000005a 0000006c 00000025 c02a61db 00000068
d0c0 00000004 00000001 f0000174 c0254950 00000000 dfffe000 c010d634 00000000
d0e0 00000000 00000000 c02a61db c0256000 ffffffff 20000080 e00002c0 c0109748
d100 0000001f 00000000 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
d120 00003d09 ffffffff 00000078 ffffffff 00000000 001c9c38 ffffffff ffffffff
d140 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
d160 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
d180 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
d1a0 ffffffff ffffffff ffffffff ffffffff 00000000 000003e8 00000000 00009bdc
d1c0 0000000a 00000064 00000060 ffffffff 00000029 ffffffff ffffffff ffffffff
d1e0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 60020060
d200 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d220 00000000 00000000 c0216984 c0216988 00000000 00000000 00000000 00000000
d240 00000000 00000000 00000000 00000000 00000000 6bc33f49 00000000 e0000024
d260 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d280 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d2a0 00000000 00000000 00000000 c01056e8 00000000 00000000 00000000 00000000
d2c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d2e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d300 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d320 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d340 00000000 00000000 00107198 00261000 00271000 f0000018 00000000 00000000
d360 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d380 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d3a0 00000000 00000000 00000000 c0107e14 00000000 00000000 00000000 00000000
d3c0 00000000 c0100000 00104024 00000000 00000000 00000001 c025d080 c0217fcc
d3e0 00000000 00000000 00000000 c010071c 00000000 00000000 00000000 00000000
d400 00000001 c025d080 00000068 c02a61db 00000008 e00002c0 e0000000 c021934c
d420 00000000 c0100000 00104024 c01080cc 00000000 00000001 c026a49c 00000000
d440 0004000a c026a000 c01080cc e0000000 e00002c0 c025d080 c0219000 00000001
d460 c02191ec 00000000 fffa0000 f0408cd8 f0407ef0 00000025 c02a61db 00000068
d480 c025d080 00000001 f0000174 c026a478 c026a478 00000000 fee003fd 002a31bc
d4a0 c026a480 c026a480 c0219000 c0256000 0000002a eb426bac c025d680 00000060
d4c0 0000001f 00000000 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
d4e0 00003d09 ffffffff 00000078 ffffffff 00000000 001c9c38 ffffffff ffffffff
d500 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
d520 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
d540 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
d560 ffffffff ffffffff ffffffff ffffffff 00000000 000003e8 00000000 00009bdc
d580 0000000a 00000064 00000060 ffffffff 00000029 ffffffff ffffffff ffffffff
d5a0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 60020060
d5c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d5e0 00000000 00000000 c01080d8 c01080dc fffffff0 f000a3a0 00000000 00261000
d600 00000000 00008000 00000000 00000000 00000018 0c701093 00000000 e0000008
d620 ffffffff fffa0000 fffffff0 f0408cd8 00000000 0025d5e8 00000000 00000000
d640 00000000 00000000 00000000 00000000 00000000 00000000 fffffff0 f00686cc
d660 00000000 00000000 fffffff0 c0105c6c fffffff0 f000a3a0 fffffff0 f0024a10

Kernel Fault: Code=15 regs=c025d440 (Addr=e0000008)

PSW  : 0004000a  GR 1 : c026a000  GR 2 : 0xc01080cc parisc_terminate+7c
c01080cc  GR 3 : e0000000  
GR 4 : e00002c0  GR 5 : c025d080  GR 6 : c0219000  GR 7 : 00000001  
GR 8 : c02191ec  GR 9 : 00000000  GR10 : fffa0000  GR11 : f0408cd8  
GR12 : f0407ef0  GR13 : 00000025  GR14 : c02a61db  GR15 : 00000068  
GR16 : c025d080  GR17 : 00000001  GR18 : f0000174  GR19 : c026a478  
GR20 : c026a478  GR21 : 00000000  GR22 : fee003fd  GR23 : 002a31bc  
GR24 : c026a480  GR25 : c026a480  GR26 : c0219000  GR27 : c0256000  
GR28 : 0000002a  GR29 : eb426bac  GR30 : c025d680  GR31 : 00000060  
SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000  
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  

IASQ : 00000000 00000000 IAOQ : c01080d8 c01080dc ORIG_R28 : 00008000
 IIR : 0c701093 ISR : 00000000 IOR : e0000008


(0xc01080d8 parisc_terminate+88
 0xc01080cc parisc_terminate+7c

probably has something to do with the fact that I don't have
a working serial console on this box and CONFIG_SERIAL_CONSOLE
is set)

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:13:30 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: [parisc-linux] Big bad SCSI errors building GCC with / on SCSI
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Xref: news.gmane.org gmane.linux.ports.parisc:7973

Hi,

When trying to build GCC on a SCSI disk (with a root filesystem on
SCSI) I get a lot of horrible looking errors and the build fails.

Building GCC on a SCSI disk with root filesystem on NFS doesn't seem
to cause problems.

Note that building smaller things doesn't seem to trigger this.
Binutils for instance managed to squeak through though I got a few
'resetting SCSI bus and chip' messages.

One thing I should point out is that I didn't power cycle my A180 when
it crashed, I just soft-rebooted.  So I will try to provoke these
problems and then power cycle to see if they are cured by that.

My boot messages show (excuse the bad formatting, ^%@#%^#$^%$#Y&^
minicom can't cut and paste properly from xterm)

sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 534
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: Good, target data areas are dma coherent
scsi0: test 1 completed ok.
scsi0: sim700_intr_handle() called with no interrupt
scsi0 : LASI/Simple 53c7xx
scsi : 1 host.
Vendor: SEAGATE   Model: ST34573N
Rev: HP05
Type:   Direct-Access
ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 5, lun 0
Vendor: SEAGATE   Model: ST34573N
Rev: HP05
Type:   Direct-Access
ANSI SCSI revision: 02
Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
scsi : detected 2 SCSI disks total.
SCSI device sda: hdwr sector= 512 bytes. Sectors= 8388314 [4095 MB] [4.1 GB]
Partition check:
sda: sda1 sda2
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 8388314 [4095 MB] [4.1 GB]
Partition check:
sdb: sdb1 sdb2

Errors look like:

scsi0: Unexpected stacked interrupt, istat 0a, sstat0 30, dstat 00
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI bus and chip
scsi0: istat = 0a, sstat0 = 20, sstat1 = 00, dstat = 00
scsi0: dsp = 07f4d3d0 (script[0x14f4]), dsps = ab93001b, target = 0
scsi0: Failing command for ID5
scsi0: Failing command for ID6
scsi0: sim700_intr_handle() called with no interrupt
scsi0: Unexpected stacked interrupt, istat 0a, sstat0 20, dstat 00
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI bus and chip
scsi0: istat = 0a, sstat0 = 20, sstat1 = 01, dstat = 00
scsi0: dsp = 07f4d150 (script[0x1454]), dsps = ab93000c, target = 0
scsi0: Failing command for ID5
scsi0: sim700_intr_handle() called with no interrupt
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<                                     
scsi0: istat = 00, sstat0 = 00, sstat1 = 00, dstat = 00                         
scsi0: dsp = 07f4f438 (script[0x1d0e]), dsps = 07f4f448, target = 0             
scsi0: sim700_intr_handle() called with no interrupt                            
SCSI disk error : host 0 channel 0 id 5 lun 0 return code = 2                    
I/O error: dev 08:02, sector 139408                                             
I/O error: dev 08:02, sector 139416                                             
I/O error: dev 08:02, sector 139520                                             
I/O error: dev 08:02, sector 139768                                             
I/O error: dev 08:02, sector 140016                                             
I/O error: dev 08:02, sector 786768                                             
I/O error: dev 08:02, sector 888512
(etc)

Then the disk becomes basically unusable, I push TOC, I lose lots of
files, my blood pressure raises 30 points, I yell obscenities, etc.

This happens on both disks on the A180.  When it's my root filesystem
(/dev/sdb2) then it's really bad because the machine becomes totally
screwed (I still have a shell prompt but can't run any programs at
all).

The chart of success/failure in building/bootstrapping GCC looks like
this with kernel 2.4:

root NFS, build NFS:            'rpc_execute called for sleeping task!!',
                                over and over, total death (machine
                                continues to respond to pings, terminal
                                driver functions, all processes are
                                terminally wedged though)

root NFS, build /dev/sda2:      same NFS problem but it takes longer to
                                manifest itself.

root /dev/sdb2, build /dev/sda2: semi-horrible SCSI problems, but the
                                machine remains usable since /dev/sdb
                                is still basically functional

root /dev/sdb2, build /dev/sdb2: SCSI problems halfway through building
                                GCC backend, machine rendered unusable,
                                many files lost, filesystem corruption.

In order to build GCC at all I need to use linux 2.3.99pre8 with root
on NFS and build on SCSI.  And then I get unrelated crashes (probably
due to some bugs I've fixed in the 2.4 branch).

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


From - Thu Nov 08 21:13:30 2018
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From: Michael Ang <mang@subcarrier.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] cvs directory renaming - *action required*
Date: Fri, 22 Sep 2000 20:29:10 -0400
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In order to reduce some of the confusion about which directory was
active in the repository (did I want "binutils", "binutils-old", or
"binutils-2.10"?) some of the directories in the repository will be
renamed.  This will be moderately painful, but it's better to do the
painful thing now while we can still stamp out the old cruft.

"linux-2.3" will be renamed to "linux"
"binutils-2.10" will be renamed to "binutils"

If you currently have a tree checked out, you will need to change all of
your CVS/Repository files to point to the new directory names.  With
bash you can do it like this:
$ cd linux-2.3
$ for i in `find . -name Repository`; do echo "linux" > $i; done
$ cd binutils-2.10
$ for i in `find . -name Repository`; do echo "binutils" > $i; done

You can do this now, since there is a symlink set up to support both
names.  The alias for the old name will be removed Wednesday.  If you do
not hack your tree by then you won't be able to play (update, checkout,
etc) until you have the right repository entries.

Can someone please update the recipe and cvs info on
www.thepuffingroup.com/parisc?  Until the docs are updated, you can
mentally substitute "linux" for "linux-2.3" and "binutils" for
"binutils-2.10".

These should be the last directory games we play in the repository. 
After this, new vendor versions should be checked into the existing
directories (on a branch).  This will reduce the confusion from using
directory names for version control.

	- Mike.

P.S. If out of archeological interest you're looking for the old {linux,
binutils, binutils-old, egcs-old} directory, it's been moved under
directory "obsolete". e.g. "cvs co obsolete/binutils-old".


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] cvs directory renaming - *action required*
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On Fri, 22 Sep 2000, Michael Ang wrote:

> "linux-2.3" will be renamed to "linux"
> "binutils-2.10" will be renamed to "binutils"
> 
> If you currently have a tree checked out, you will need to change all of
> your CVS/Repository files to point to the new directory names.  With
> bash you can do it like this:
> $ cd linux-2.3
> $ for i in `find . -name Repository`; do echo "linux" > $i; done
> $ cd binutils-2.10
> $ for i in `find . -name Repository`; do echo "binutils" > $i; done

Errm, will this work?  My linux-2.3/CVS/Repository file looks like this:
/home/cvs/parisc/linux-2.3
and linux-2.3/CVS/arch/Repository has
/home/cvs/parisc/linux-2.3/arch

I wasn't game to try the above, and instead used

cd linux-2.3
for z in `find . -name Repository`
do
  sed -e 's/-2.3//' $z > zzz && mv zzz $z
done

with a simliar trick for binutils.

-- 
Linuxcare.  Support for the Revolution.


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From: Michael Ang <mang@subcarrier.org>
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Subject: Re: [parisc-linux] cvs directory renaming - *action required*
Date: Fri, 22 Sep 2000 20:57:56 -0400
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No, what I gave will not work and is in fact *horribly wrong*.  I would
recommend that people use Alan's script fragment instead ;)

	- Mike.

Alan Modra wrote:
> 
> On Fri, 22 Sep 2000, Michael Ang wrote:
> 
> > "linux-2.3" will be renamed to "linux"
> > "binutils-2.10" will be renamed to "binutils"
> >
> > If you currently have a tree checked out, you will need to change all of
> > your CVS/Repository files to point to the new directory names.  With
> > bash you can do it like this:
> > $ cd linux-2.3
> > $ for i in `find . -name Repository`; do echo "linux" > $i; done
> > $ cd binutils-2.10
> > $ for i in `find . -name Repository`; do echo "binutils" > $i; done
> 
> Errm, will this work?  My linux-2.3/CVS/Repository file looks like this:
> /home/cvs/parisc/linux-2.3
> and linux-2.3/CVS/arch/Repository has
> /home/cvs/parisc/linux-2.3/arch
> 
> I wasn't game to try the above, and instead used
> 
> cd linux-2.3
> for z in `find . -name Repository`
> do
>   sed -e 's/-2.3//' $z > zzz && mv zzz $z
> done
> 
> with a simliar trick for binutils.
> 
> --
> Linuxcare.  Support for the Revolution.


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New cross-toolchain and nfsroots
Date: Fri, 22 Sep 2000 19:22:13 -0600
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I have posted a new X86/linux->parisc/linux cross toolchain at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20000921.tar.gz

I have also posted two new nfsroots. The first contains everything from Debian 
"base" that we have built so far(debs and tgz's). This is an attempt to 
generate something as close as possible to the base.tgz file that the Debian 
install uses. All the debs were installed natively so the package database is 
correct as well. It will serve as a good starting point for building a system 
and can be updated using dpkg/apt/etc. It's 33MB. It lives at,

ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/base-20000922.tar.gz

The second nfsroot is the above "base" root plus all the other non-"base" 
Debian packages that we've done plus gcc/binutils. Think kitchen sink. It's 
43MB. It lives at,

ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/nfsroot-20000922.tar.g
z

In case you're curious I placed notes on how I generated the above at,

ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/recipe-20000922

-- 
Matt Taggart
taggart@fc.hp.com



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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] internal error in tc-hppa.c?
Date: Sat, 23 Sep 2000 12:40:37 +1100 (EST)
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On Fri, 22 Sep 2000, Grant Grundler wrote:

> Could someone who has a clue about tc-hppa.c improve the
> error reporting for this case?
> I'm certain we are going to see this again...

OK, it's fairly easy to make gas report symbols associated with fixups
that it doesn't understand.  I'll look at it in a few hours - I'm off to
pick up a new car :)

This sort of bug is due to gas originally being written just to process
gcc output.  ie. gas lays no claim to being a general purpose assembler.
x86 gas had the same sort of behaviour a few years ago, and you might be
surprised to know I met with some resistance to making x86 gas more
general purpose.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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From: Michael Shalayeff <mickey@lucifier.dial-up.user.akula.net>
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Subject: Re: [hppa-linux] syscall work
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re
okie, but why emulating gate instruction, when there is already such
instruction exist? (;
page w/ gate instructions needed for existing (3 already) operating systems
compatibility, so it's needed anyway, and btw having the gateway
page mapped (and only one) could result in that it's tlb mapping would
persist in the tlb improving perfomance, while doing if() would
always penilize. this needs actual measurement, but i beleive certain
cases w/ many syscalls being called should be very possible.
cu

Making, drinking tea and reading an opus magnum from Stan Sieler:
> Re:
> 
> > let's think what is less efficient: extra mapped page, or
> > extra indirrect ptr reference?
> > my point is, why map extra page (and waiste extra page) ?
> > one page is 128 page dir entries, hehe (; returning to the pd discussion)
> 
> If you're talking about the gateway page, if you don't actually *allocate*
> a page, but simply rely on the trap that occurs when you try to jump to it,
> then there's 0 storage cost for the extra mapped page approach...no TLB
> entry, no entries in other data structures.  The only cost is the
> additional CPU time in the TLB miss handler to say:
> 
>    if isr.ior = 0xc0000400 (or whatever)
>       then handle system call attempt
>    else
>       handle TLB miss
> 
> BTW, the extra cost of doing a system call mechanism via a non-mapped gateway page
> vs. using a GATE instruction is about 5 microseconds on a 32MHz machine.
>  
> -- 
> Stan Sieler                                          sieler@allegro.com
>                                      http://www.allegro.com/sieler.html
> 
> 


-- 
    paranoic mickey       (my employers have changed but, the name has remained)


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From: Ryan Bradetich <rbradetich@uswest.net>
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This is a multi-part message in MIME format.
--------------DC7AC919A57FF5003A3725B8
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Content-Transfer-Encoding: 7bit

Erik & Grant,

I think I have finally tracked this problem down... I don't think it is a bug
in either the ccio-dma or the sym53c8xx driver.... I believe it is a sizing
issue with the IO PDIR in the ccio-dma.  I spent some time last week
increasing the density of the IO PDIR by 4x ... it looks like I still have some
work to do :)

I increased the the IO PDIR ratio to main memory by 4x and I can
successfully format a 4G partition in my C200+.  (When I bumped
the IO PDIR ratio by 2x, is still had problems...)

Erik ... I've attached a small patch for you to try and see if it works for
you.

Thanks,

- Ryan


> Hi,
>         Using the CVS kernel on a C100 I'm seeing it die with an out-of-mapping
> resources error from ccio-dma.c. It looks like there's been some active
> development there about a week ago, but it's not helping my machine. The
> quickest way for me to bring it about is to try and use mke2fs, but just
> mounting the CD and running a few commands will oftentimes do the trick.
>
> How can I help debug this? There's really no useful information provided by
> the printk now - is there some sort of debugging info I could be collecting,
> or would a backtrace help?
>
> Thanks
>
> -Erik
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

--------------DC7AC919A57FF5003A3725B8
Content-Type: text/plain; charset=us-ascii;
 name="ccio-dma.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="ccio-dma.patch"

Index: ccio-dma.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/ccio-dma.c,v
retrieving revision 1.10
diff -u -p -u -r1.10 ccio-dma.c
--- ccio-dma.c	2000/09/15 00:57:14	1.10
+++ ccio-dma.c	2000/09/23 05:26:51
@@ -200,7 +200,7 @@ struct ccio_device {
 
 
 /* Ratio of Host MEM to IOV Space size */
-STATIC u_long ccio_mem_ratio = 16;
+STATIC u_long ccio_mem_ratio = 4;
 STATIC struct ccio_device *ccio_list = NULL;
 
 /**************************************************************

--------------DC7AC919A57FF5003A3725B8--


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Subject: Re: [parisc-linux] cvs directory renaming - *action required*
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Michael Ang said:
> In order to reduce some of the confusion about which directory was
> active in the repository (did I want "binutils", "binutils-old", or
> "binutils-2.10"?) some of the directories in the repository will be
> renamed.  This will be moderately painful, but it's better to do the
> painful thing now while we can still stamp out the old cruft.
> 
> "linux-2.3" will be renamed to "linux"
> "binutils-2.10" will be renamed to "binutils"
> 
> If you currently have a tree checked out, you will need to change all of
> your CVS/Repository files to point to the new directory names.  With
> bash you can do it like this:

This file "binutils-2.10/gas/testsuite/gas/cris/CVS/Repository" doesn't
contain a full repository path - all the others are /home/cvs/... but
this one contains just the relative path.  Not sure what this means, if
anything...  Some of the Repository files in the linux-2.3 module have
the same sort of thing.  *shrug*  Anyone know?  =)

> $ cd linux-2.3
> $ for i in `find . -name Repository`; do echo "linux" > $i; done
> $ cd binutils-2.10
> $ for i in `find . -name Repository`; do echo "binutils" > $i; done

$ for i in $(find linux-2.3 binutils-2.10 -name Repository); do echo $(cat $i|sed 's/-[0-9.]*//') > $i; done

> P.S. If out of archeological interest you're looking for the old {linux,
> binutils, binutils-old, egcs-old} directory, it's been moved under
> directory "obsolete". e.g. "cvs co obsolete/binutils-old".

Why do this?  Why not just tag those two modules on Wednesday when you
make the change to the repository structure?

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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Subject: Re: [parisc-linux] cvs directory renaming - *action required*
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Is anyone having trouble doing updates after the rename?

Not having any troubles with the binutils module but bombing out on
linux ...

cvs server: Updating linux/arch/alpha/math-emu
cvs [server aborted]: cannot open directory /home/cvs/parisc/linux/arch/alpha/mathemu: No such file or directory


Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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Subject: Re: [parisc-linux] cvs directory renaming - *action required*
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Andrew Shugg wrote:
> 
> $ for i in $(find linux-2.3 binutils-2.10 -name Repository); do echo $(cat $i|sed 's/-[0-9.]*//') > $i; done

This is also incorrect since you'll replace any dashes that appear.  You
want this:
cd binutils-2.10
for z in `find . -name Repository`
do
  sed -e 's/-2.10//' $z > zzz && mv zzz $z
done

> > P.S. If out of archeological interest you're looking for the old {linux,
> > binutils, binutils-old, egcs-old} directory, it's been moved under
> > directory "obsolete". e.g. "cvs co obsolete/binutils-old".
> 
> Why do this?  Why not just tag those two modules on Wednesday when you
> make the change to the repository structure?

Because "linux-2.3" is being renamed to "linux", so the old "linux" had
to go.  The stuff being moved is very old, and is being moved out of the
way to reduce the amount of cruft in the top level of the repository. 
This should be the last time we have to do this.  After the rename, no
new directories should be created unless absolutely necessary: branches
should be used instead.

	- Mike.


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From: Michael Ang <mang@subcarrier.org>
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Subject: Re: [parisc-linux] cvs directory renaming - *action required*
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This is because of a problem in your sed pattern.  Notice the mismatch
between "math-emu" and "mathemu".  You can hand edit your CVS/Repository
to be correct (add the dash back).

Playing directory games in the repository is always a bad scene.  But
there was a desire to get rid of the junk in the repository, and better
to pay the price now than have the old directories become entrenched. :/

	- Mike.

Andrew Shugg wrote:
> 
> Is anyone having trouble doing updates after the rename?
> 
> Not having any troubles with the binutils module but bombing out on
> linux ...
> 
> cvs server: Updating linux/arch/alpha/math-emu
> cvs [server aborted]: cannot open directory /home/cvs/parisc/linux/arch/alpha/mathemu: No such file or directory


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Andrew Shugg said:
> Is anyone having trouble doing updates after the rename?
> 
> Not having any troubles with the binutils module but bombing out on
> linux ...
> 
> cvs server: Updating linux/arch/alpha/math-emu
> cvs [server aborted]: cannot open directory /home/cvs/parisc/linux/arch/alpha/mathemu: No such file or directory

Yep, my bad: thanks for sorting me out Mike.  =)

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                http://www.neep.com.au/

  "Just remember Basil, there's always someone worse off than yourself."
  "Oh, really?  I'd like to meet him ... I could do with a good laugh."
                 [ Sybil and Basil Fawlty, "Fawlty Towers" ]


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] cvs directory renaming - *action required*
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To: Michael Ang <mang@subcarrier.org>
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On Fri, Sep 22, 2000 at 08:29:10PM -0400, Michael Ang wrote:
> Can someone please update the recipe and cvs info on
> www.thepuffingroup.com/parisc?  Until the docs are updated, you can
> mentally substitute "linux" for "linux-2.3" and "binutils" for
> "binutils-2.10".

cvs co website, then make your changes and commit them back.  Next time
someone with the password updates the website, your changes will
appear too.

(typing make will create the .html files from the .x files so you
can check your changes.  Since mid-July, you haven't needed anything
special installed; date, cat, echo, make, mkdir... no silly binary-only
software :-)

I have some ideas for how to improve the website, but I'm going to
wait and see what the Linuxcare web team come up with before I make
any structural changes.

-- 
Revolutions do not require corporate support.


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From: Jim Buttafuoco <jim@buttafuoco.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Looking for Help with 9000/710
Date: Sat, 23 Sep 2000 17:27:56 -0400
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I just received 2 HP 9000/710 systems without any docs.  I am currently
trying to see if they work and if so install linux on them.  Do anyone
know where I can get some electronic copies of the hardware reference
manual(s) for this system

Thanks
Jim
jim@buttafuoco.org



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From: Martin Schulze <joey@ffis.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [Reminder] 2000 Oldenburg Linux Developers Meeting
Date: Sun, 24 Sep 2000 20:44:31 +0200
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[Crossposted via bcc to a couple of developer lists]

This is your invitation to the


               2000 Oldenburg Linux Developers Meeting


   This is the second official announcement for the the 2000 Linux
   Developers Meeting in Oldenburg (formerly known as m68k Hacker's
   Meeting).  Please forward this announcement to whoever you consider
   developer enough to join.

   The meeting takes place from


	      October 12th noon to October 15th noon


   The developers meeting will take place in the same rooms like last
   year.  However, if more people are attending than last year, we're
   going to use a larger room or use two rooms side by side.  As
   before, attendance is free of cost, however you should be a
   developer.  Please remember to take not only your hardware with you
   but also all reference manuals and technical manuals that belong to
   them.  Oh, and don't forget hubs for all of your boxes.

   We're also organizing at least three independend power circuits
   that should help us avoid a general power failure. :-) We did not
   have one last year, so there's a good chance we'll survive this
   year again.

   IP connectivity will be sponsored by the computing center of our
   University to whose network we will be connected with a
   masquerading router.  If you have a ready configured router, take
   it with you.  We are trying to get food and fluids sponsored as
   well.  Nevertheless you should not forget your regular hacker's food.

   You may arrive on Thursday if you like.  You may also stay longer
   than sunday if you like.  If you need to picked up at the train
   station, let us know when you're going to arrive - i.e. tell us
   to receive a mobile number from one of us.  This will be optimized
   with regards to last year. :) 

   Meeting online: http://oldenburger.linuxtage.de/lt2000/devel/
   You'll find travel maps there.

   To help us plan the rooms, amount of food and other stuff please
   fill out the following form and send it to joey@infodrom.ffis.de.

   _____________________________________________________________________

   Name .........................:

   Date of arrival ..............: ( ) Thursday, October 12th
				   ( ) Friday, October 13th
				   ( ) Saturday, October 14th

   Date of departure ............: ( ) Friday, October 13th
				   ( ) Saturday, October 14th
				   ( ) Sunday, October 15th
				   ( ) Monday, October 16th
				   ( ) later: _____________

   Number of machines ...........:

   Number of monitors ...........:

   Name may be placed on web page: ( ) yes
				   ( ) no

Best regards,

	Joey

-- 
GNU does not eliminate all the world's problems, only some of them.
                                                -- The GNU Manifesto
Oldenburger LinuxTag 2000                 http://oldenburger.linuxtage.de/


From - Thu Nov 08 21:13:31 2018
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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C100 and ccio-dma
Date: Sun, 24 Sep 2000 20:40:48 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:7989

Erik & Grant,

I isolated the problem, and have checked in an updated ccio-dma driver
that should take care of this problem for you Erik.  The problem was with
the way the ccio-dma handled the scatter/gather lists.

The sym53c8xx driver asked the ccio-dma driver to map 2 maps of
64 - 1024k dma entries.  The ccio-dma driver would map an entire
block (8 pages) for each of the 128 1024k dma entries.  I have checked
in a new ccio-dma driver that handles the scatter/gather lists much
more intelligently.  With these changes I map the entire 128 - 1024k
dma entries into 3 blocks (32 pages).

Erik:  When you get a chance, would you try out the new ccio-dma
driver and see if that fixed your problem.  (I'm betting it will).

Grant: Would you mind reviewing the changes I made to make sure
I didn't do anything stupid :)  I also made several bug fixes that
should/could be ported to the sba driver as well.

There are still some problems with this driver I'm working on tracking
down...  If the pdir is really small (32 MB main memory) ... I get a
HPMC.  But it seems to work when memory is larger (ie 128 MB main
memory).

Thanks and good luck!

- Ryan


Ryan Bradetich wrote:

> Erik & Grant,
>
> I think I have finally tracked this problem down... I don't think it is a bug
> in either the ccio-dma or the sym53c8xx driver.... I believe it is a sizing
> issue with the IO PDIR in the ccio-dma.  I spent some time last week
> increasing the density of the IO PDIR by 4x ... it looks like I still have some
> work to do :)
>
> I increased the the IO PDIR ratio to main memory by 4x and I can
> successfully format a 4G partition in my C200+.  (When I bumped
> the IO PDIR ratio by 2x, is still had problems...)
>
> Erik ... I've attached a small patch for you to try and see if it works for
> you.
>
> Thanks,
>
> - Ryan


From - Thu Nov 08 21:13:31 2018
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From: Phil Schwan <pschwan@cmu.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Mailing list behaviour
Date: Mon, 29 Mar 1999 16:46:13 -0500
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By request, I've asked smartlist to please stop mangling (or adding,
in most cases) a Reply-to field.  There are compelling arguments for
and against, but leaving it out really does make more sense.  Note
that a simple ``Reply'' command to your mailer will probably not work
for future mails--you'll want to use the ``Group reply'' feature.

-Phil

------------------------------------------------------------------
"In film you will find four basic story lines. Man versus man, man
versus nature, nature versus nature, and dog versus vampire."
        - Steven Spielberg


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Big bad SCSI errors building GCC with / on SCSI
Date: Mon, 25 Sep 2000 10:01:45 +0100
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To: David Huggins-Daines <dhd@linuxcare.com>
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Hi Dave,

On Fri, Sep 22, 2000 at 08:08:20PM -0400, David Huggins-Daines wrote:
> Hi,
> 
> When trying to build GCC on a SCSI disk (with a root filesystem on
> SCSI) I get a lot of horrible looking errors and the build fails.

I'm currently testing a new version of sim700.c which might help you.
I hope to commit it later today.

Richard


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From: Erik Paulson <epaulson@upl.cs.wisc.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] cvs directory renaming - *action required*
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Xref: news.gmane.org gmane.linux.ports.parisc:7992

On Fri, Sep 22, 2000 at 08:29:10PM -0400, Michael Ang wrote:
> In order to reduce some of the confusion about which directory was
> active in the repository (did I want "binutils", "binutils-old", or
> "binutils-2.10"?) some of the directories in the repository will be
> renamed.  This will be moderately painful, but it's better to do the
> painful thing now while we can still stamp out the old cruft.
> 
> "linux-2.3" will be renamed to "linux"
> "binutils-2.10" will be renamed to "binutils"

The nightly CVS snapshots still have linux-2.3...

-Erik


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The cvs tarballs on the ftp site are owned by user "adevries".  From
this I guess that Alex has a cron job that packages the tarballs.

Alex, can you please update your scripts?

	- Mike.

Erik Paulson wrote:
> 
> On Fri, Sep 22, 2000 at 08:29:10PM -0400, Michael Ang wrote:
> > "linux-2.3" will be renamed to "linux"
> > "binutils-2.10" will be renamed to "binutils"
> 
> The nightly CVS snapshots still have linux-2.3...


From - Thu Nov 08 21:13:31 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Lazy linking issues
Date: 25 Sep 2000 20:39:06 -0400
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So,

It turns out that our ideas of how lazy linking would work are not
quite right.  The problem is that fixup() has to be called with the
struct link_map stored in GOT[1] of the object we are trying to
relocate, which means the strategy of looking at _GLOBAL_OFFSET_TABLE_
obviously won't work (in ld.so it would always get us the link_map for
ld.so, and it won't compile anyway since the code has to get linked
into libc.a ... I don't actually know why it worked before, but
probably because I forgot a */ on the comment at the top of
TRAMPOLINE_TEMPLATE).

In fact the code in elf_machine_runtime_setup() is wrong as well since
it is storing the link_map in the GOT of ld.so rather than the dynamic
object that is being loaded lazily :)

I think the strategy of (ab-)using the LTP part of the PLT slot to
pass extra info to the trampoline code is basically sound.  The only
problem is that we need more information than we currently have.

What the trampoline needs to know is:

        1) Offset of the PLT relocation we are going to perform in the
           DT_JMPREL array.  Note that this is often the same as the
           index in the PLT, but for us it currently isn't because our
           IPLT relocations are not sorted (due to _init weirdness).

        2) The struct link_map * that was saved in
           elf_machine_runtime_setup().

Both of these are hard.  The reason they are hard is because we need
to find them for the object we are coming *from*, and since there is
no code in the PLT we cannot easily arrange for this to be so.
Actually we would need more help from the linker to do that, anyway,
since the addresses of the GOT and PLT are not easily accessible from
any object (since the LTP doesn't really point to either of them).

Here is what I tried (until I realized it was doomed to failure):

First, I added an extra machine-specific dynamic tag (I would have
used DT_HP_LOAD_MAP but glibc does not support the 'OS-specific'
dynamic tags, and in fact has the wrong value for DT_LOOS) pointing to
the reserved area of each object and fixed up this object's IPLT to
point to it.  The larger reserved area contained:

        0 - link-time address of _DYNAMIC (same as before)
        4 - pointer to this object's struct link_map (also same)
        8 - address of this object's PLT
        12 - address of the LTP value for the fixup function

Having the extra dynamic tag is a good way to flag that an object can
do lazy linking, so the changes would not affect older binaries.

The problem was that I was working under the false assumption that
$$dyncall and import stubs would (or could) load the address of the
PLT slot in %r1 (not sure why I thought that ... didn't look close
enough at the import stub code I guess) and that we could get the
offset of the PLT relocation this way.  This doesn't work for two
reasons: (1) obviously, import stubs don't load %r1 with the address
of the PLT slot, and (2) the PLT relocations aren't sorted so the
value would be wrong anyway.

This means that my old idea of storing the index of the IPLT
relocation in each PLT slot in elf_machine_runtime_setup() was
essentially correct, but then we have the problem of how to get at the
reserved area of the GOT.  There is basically no way to do this that I
can think of without adding another word to the PLT slot (which might
not be a bad idea, actually).

Anyway I am going home, I'll leave you to think about this I guess...

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Michael Ang <mang@subcarrier.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] cvs renaming complete
Date: Mon, 25 Sep 2000 21:59:23 -0400
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The directory renaming in the repository is complete.  The new (and
hopefully final) directory names are "linux" and "binutils", as you
might expect.

The trick to get your old tree in sync with the new directory names,
courtesy of Alan Modra:

cd linux-2.3
for z in `find . -name Repository`
do
  sed -e 's/-2.3//' $z > zzz && mv zzz $z
done

And for binutils-2.10:

cd binutils-2.10
for z in `find . -name Repository`
do
  sed -e 's/-2.10//' $z > zzz && mv zzz $z
done


You will no longer be able to update or run other commands on an old
tree that hasn't been munged with the sed trick.  Instead you'll run
into a fake lock that will hopefully lead you to this message.

e.g.
[mang@lovehaze linux-2.3]$ cvs up
cvs server: Updating .
cvs server: [19:44:53] waiting for dir_renamed_read_your_mail's lock in
/home/cvs/parisc/linux-2.3

I for one regard renaming directories in the repository to be a great
evil.  So please try not to create any unnecessary top-level
directories.  I'd be happy to help anyone create a branch instead of
having to go through renaming again :)

	- Mike.


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] cvs renaming complete
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I've fixed the nightly runs so the cvs-over-ftp system should tonight
deliver
the correct files.

- Alex
-- 
Alex deVries, Director of Professional Services, The Puffins at
Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Lazy linking issues
Date: Tue, 26 Sep 2000 15:32:43 +1100 (EST)
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On 25 Sep 2000, David Huggins-Daines wrote:

> This means that my old idea of storing the index of the IPLT
> relocation in each PLT slot in elf_machine_runtime_setup() was
> essentially correct, but then we have the problem of how to get at the
> reserved area of the GOT.  There is basically no way to do this that I
> can think of without adding another word to the PLT slot (which might
> not be a bad idea, actually).

The easiest thing would be to make PLTGOT always point to the start of
.got, which is what most other architectures do.  Having PLTGOT (and
hence the linkage table pointer) point elsewhere is just an optimisation
of dubious value.  At the moment we don't try to remove the addil's from
import stubs anyway, and in any case, positioning the LTP at the start of
the .got (which is also the end of the .plt) is a fairly good choice for
addressing both .plt and .got with 14-bit offsets.

Is this enough for lazy linking?  No, because each jump through a plt
entry needs to pass it's .got (struct link_map really) as well as pltrel
offset to the fixup routine.  I think the dynamic linker needs some help
from the linker.  Again stealing ideas from other architectures, let's
modify the linker to set up the .plt function pointers to point back to
the start of the plt.  We'll reserve some space at the start of the plt
for code to load any necessary pointers into registers.
elf_machine_runtime_setup will need to relocate the .plt function
pointers, and also the code at the start of the plt unless I can make it
PIC.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



From - Thu Nov 08 21:13:32 2018
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Lazy linking issues
Date: Tue, 26 Sep 2000 19:08:20 +1100 (EST)
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OK, here's what I've come up with.

First four entries of the .got are
 0x0 - pointer to dynamic section (as before)
 0x4 - pointer to this object's struct link_map (as before)
 0x8 - address of the fixup function (normal or profile)
 0xc - the LTP value for the fixup function

Code at the start of the .plt looks like:
	b,l	1f,%r26
	depi	0,31,2,%r26
1:	addil	LD'_GLOBAL_OFFSET_TABLE_ + 8 - ($PIC_pcrel$0 - 8),%r26
	ldwm	RD'_GLOBAL_OFFSET_TABLE_ + 8 - ($PIC_pcrel$0 - 12)(%r1),%r26
	copy	%r19,%r25
	ldw	4(%r1),%r19
	bv	%r0(%r26)
	ldw	-4(%r1),%r26

which puts struct link_map * in %r26, reloc offset in %r25, fixup LTP in
%r19, &got[2] in %r1, and branches to the address in got[2].  Funny
enough, this code exposed the fact that gas currently doesn't handle
relocs using the LD and RD field selectors.

A non-pic version saving 2 instructions, but meaning the dynamic linker
needs to relocate some insns:
	ldil	LD'_GLOBAL_OFFSET_TABLE_ + 8,%r1
	ldwm	RD'_GLOBAL_OFFSET_TABLE_ + 8(%r1),%r26
	copy	%r19,%r25
	ldw	4(%r1),%r19
	bv	%r0(%r26)
	ldw	-4(%r1),%r26

We still need some means for elf_machine_runtime_setup to figure out
where the .got starts.  One way is to make PLTGOT do this for us, which is
my preferred solution.  Alternatives would be a) read the elf section
headers, or b) look at the first iplt reloc to find an entry in the .plt,
read the function pointer which give us the above code, extract the .got
pointer from the addil/ldil and ldwm insns.  Was that retching I heard?

Hmm, one variation on this theme that occurs to me, is to put the above
code at the _end_ of the plt - the advantage is that the .got is right
next-door, so we don't need the addil, and case b) above becomes a little
simpler.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: Lazy linking issues
Date: Wed, 27 Sep 2000 01:21:24 +1100 (EST)
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On Tue, 26 Sep 2000, Alan Modra wrote:

> Code at the start of the .plt looks like:
> 	b,l	1f,%r26
> 	depi	0,31,2,%r26
> 1:	addil	LD'_GLOBAL_OFFSET_TABLE_ + 8 - ($PIC_pcrel$0 - 8),%r26
> 	ldwm	RD'_GLOBAL_OFFSET_TABLE_ + 8 - ($PIC_pcrel$0 - 12)(%r1),%r26
> 	copy	%r19,%r25
> 	ldw	4(%r1),%r19
> 	bv	%r0(%r26)
> 	ldw	-4(%r1),%r26

That's all a bit silly.  How come no-one noticed and told me how foolish 
I am?  We can't trash the arg registers willy-nilly.

I'm going for a stub at the end of the .plt, with .plt and .got guaranteed
to be glued together.  The fixup fptr will be immediately after the stub
at the end of the .plt, ie. at got[-2] istead of got[2].

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: Lazy linking issues
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Alan Modra <alan@linuxcare.com.au> writes:

> On Tue, 26 Sep 2000, Alan Modra wrote:
> 
> > Code at the start of the .plt looks like:
> > 	b,l	1f,%r26
> > 	depi	0,31,2,%r26
> > 1:	addil	LD'_GLOBAL_OFFSET_TABLE_ + 8 - ($PIC_pcrel$0 - 8),%r26
> > 	ldwm	RD'_GLOBAL_OFFSET_TABLE_ + 8 - ($PIC_pcrel$0 - 12)(%r1),%r26
> > 	copy	%r19,%r25
> > 	ldw	4(%r1),%r19
> > 	bv	%r0(%r26)
> > 	ldw	-4(%r1),%r26
> 
> That's all a bit silly.  How come no-one noticed and told me how foolish 
> I am?  We can't trash the arg registers willy-nilly.

Probably because I was asleep :)

> I'm going for a stub at the end of the .plt, with .plt and .got guaranteed
> to be glued together.  The fixup fptr will be immediately after the stub
> at the end of the .plt, ie. at got[-2] istead of got[2].

Okay.  I suppose I will take the same approach as the Alpha code does,
and look for a particular instruction at the end of the GOT in
elf_machine_runtime_setup() as an indication of whether lazy linking
can be done or not.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Stan Sieler <sieler@allegro.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hppa-linux] syscall work
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Hi,

> okie, but why emulating gate instruction, when there is already such
> instruction exist? (;

Simple: HP does this...there must be a reason.

They appear to do it on selected models of PA-RISC systems.  Why?  Don't know.

I can only conjecture...and the conjecture is the obvious one: there must be
some circumstance where GATE fails.  Otherwise, *why* replace it with
a slightly slower mechanism?

-- 
Stan Sieler                                          sieler@allegro.com
                                     http://www.allegro.com/sieler.html


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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] NFS root fixed (I believe)
Date: Tue, 26 Sep 2000 08:40:42 -0600 (MDT)
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I just checked in changes that I believe fix nfs root. It turns out
that the in_interrupt() macro was not working, probably due to a
2.4 merge mistake. Anyway, since it wasn't working, schedule() was
being called under interrupt. And since schedule calls in_interrupt()
to check for that possibility, it was not catching it, therefore it
was switching contexts under interrupt, trashing kernel stacks, etc.

John


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: Lazy linking issues
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On 26 Sep 2000, David Huggins-Daines wrote:

> Okay.  I suppose I will take the same approach as the Alpha code does,
> and look for a particular instruction at the end of the GOT in
> elf_machine_runtime_setup() as an indication of whether lazy linking
> can be done or not.

Yep.  I'll check in my mods to dl-machine.h in a few minutes after I fix
this silly plt stub.

The plt stub looks like

1:	ldw	0(%r20),%r22
	bv	%r0(%r22)
	ldw	4(%r20),%r21
2:	b,l	1b,%r20
	depi	0,31,2,%r20
9:	.word 0xc0ffee
	.word 0xdeadbeef

with entry at label 2.  The idea here being that the linker can change the
plt stub without magic numbers in the dynamic linker needing to be
changed.  So we jump into the trampoline with r19 = reloc offset,
r20 = got-8, r21 = fixup ltp.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: "MEYER,ALAN C. \(HP-FtCollins,ex1\)" <alan_meyer@hp.com>
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Subject: [parisc-linux] Serial console?
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We are going to ship a PA box to the Atlanta Linux Symposium to be in the HP
booth.

My question - do we have enough working to just a standalone PA box, with
its own keyboard and serial console?   Has anyone been using this
configuration lately?  Does it work?

Alan


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From: "MEYER,ALAN C. \(HP-FtCollins,ex1\)" <alan_meyer@hp.com>
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Subject: RE: [parisc-linux] Serial console?
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Oops, s/serial/graphics/

Up 'til now, we have always used a serial connection to another box (x86
Linux) to demo PA/Linux.  The question now - are we ready to try this
standalone, via a local keyboard and monitor.

Alan

>-----Original Message-----
>From: MEYER,ALAN C. (HP-FtCollins,ex1) [mailto:alan_meyer@hp.com]
>Sent: Tuesday, September 26, 2000 10:26 AM
>To: parisc-linux@thepuffingroup.com
>Subject: [parisc-linux] Serial console?
>
>
>We are going to ship a PA box to the Atlanta Linux Symposium 
>to be in the HP
>booth.
>
>My question - do we have enough working to just a standalone 
>PA box, with
>its own keyboard and serial console?   Has anyone been using this
>configuration lately?  Does it work?
>
>Alan
>
>---------------------------------------------------------------
>------------
>To unsubscribe: send e-mail to 
>parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.
>


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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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On Tue, Sep 26, 2000 at 10:39:33AM -0600, MEYER,ALAN C. HP-FtCollins,ex1" wrote:
> Oops, s/serial/graphics/
> 
> Up 'til now, we have always used a serial connection to another box (x86
> Linux) to demo PA/Linux.  The question now - are we ready to try this
> standalone, via a local keyboard and monitor.

I had a working graphic console on a 712/80 during LinuxTag in Stuttgart
a couple of months ago (well some keys didn't work, but it was good
enough).

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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From: Alan Modra <alan@linuxcare.com.au>
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On Tue, 26 Sep 2000, David Huggins-Daines wrote:

> Sometimes we get the "split field selectors" problem in import stubs
> if the distance between the GP and the PLT is not a multiple of 8
> bytes.  Use alignment constraints on .plt, .got, and .data to fix
> this.

Ouch.  But aligning doesn't fix the problem (well, it may in a particular
case).  The reason aligning won't always work is that import and long
branch stubs are interspersed in the stub section, and PIC long branch
stubs happen to be 12 bytes long.  Which messes with your carefully
constructed 8 byte alignment.

The proper fix is to use lr_sel and rr_sel when building the import stubs,
so I'm reverting your change unless you have some other reason for wanting
8 byte alignment.

Alan
-- 
Linuxcare.  Support for the Revolution.


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On Wed, 27 Sep 2000, Alan Modra wrote:

> On Tue, 26 Sep 2000, David Huggins-Daines wrote:
> 
> > Sometimes we get the "split field selectors" problem in import stubs
> > if the distance between the GP and the PLT is not a multiple of 8
> > bytes.  Use alignment constraints on .plt, .got, and .data to fix
> > this.
> 
> Ouch.  But aligning doesn't fix the problem (well, it may in a particular
> case).  The reason aligning won't always work is that import and long
> branch stubs are interspersed in the stub section, and PIC long branch
> stubs happen to be 12 bytes long.  Which messes with your carefully
> constructed 8 byte alignment.

No, that's wrong.  Aligning the .plt and gp _will_ fix the problem, but
using lrsel/rrsel is still the better solution.

> The proper fix is to use lr_sel and rr_sel when building the import stubs,
> so I'm reverting your change unless you have some other reason for wanting
> 8 byte alignment.
> 
> Alan

-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] cvs directory renaming - *action required*
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On Mon, Sep 25, 2000 at 01:57:09PM -0400, Michael Ang wrote:
> The cvs tarballs on the ftp site are owned by user "adevries".  From
> this I guess that Alex has a cron job that packages the tarballs.
> 
> Alex, can you please update your scripts?

Now that Matt's buildtools are in CVS, this script should probably also
be in CVS, and it should be run by user `al-76'.  (the significance of
this name may be noted by some of you :-)

-- 
Revolutions do not require corporate support.


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Matthew Wilcox writes...

> On Mon, Sep 25, 2000 at 01:57:09PM -0400, Michael Ang wrote:
> > The cvs tarballs on the ftp site are owned by user "adevries".  From
> > this I guess that Alex has a cron job that packages the tarballs.
> > 
> > Alex, can you please update your scripts?
> 
> Now that Matt's buildtools are in CVS, this script should probably also
> be in CVS, and it should be run by user `al-76'.  (the significance of
> this name may be noted by some of you :-)

Good idea. I'll move it over once we're moved over to the new system.

-- 
Matt Taggart
taggart@fc.hp.com



From - Thu Nov 08 21:13:33 2018
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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Warning re: serial driver change
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Xref: news.gmane.org gmane.linux.ports.parisc:8011

I've been using a plug in PCI serial card on my J5000 for some time now,
but I had to make changes to the serial driver to get it to work.  One of
the changes was a workaround for a problem that I did not know the root
cause of.  I spent some time tonight tracking down that root cause (a bug
in pci_write_config_byte on Astro/Ike based machines with later revision
chips) and fixed it.

The other change I had a few concerns about, and wanted to do some
more testing on a few other machines before I checked the change
into the serial driver. Matt Taggart and I did that testing today,
so I just recently checked in the changes.

However, I need to warn you about this change.  Previously Martin Peterson
had made a change to the driver to not initialize the UART, since the
parisc firmware had already initialized it.  He experienced problems with
the serial port (like garbage output) if the UART was initialized a second
time.

However, this change was a problem for plug in (pci) serial cards, since
the firmware doesn't know about them, and did not initialize them.  I
thought about some kind of special case test, but at least on my A180, the
built in serial port still worked when I reverted the driver to the
previous state (i.e. the driver initializes the UART in all cases).  Matt
Taggart also tested the change on a Gecko and a C200. These represent
most of the machines (or very similar machines) that people are working
on. However, they are all LASI based, so it may not be a wide enough
sample.

Anyway, I am hoping that whatever originally caused the problem Martin
Peterson was seeing is now fixed.  If that is the case, this is the best
solution, since it removes one more parisc specific change to common code.
If you see garbage output after the message "Switching from PDC console",
then this is not the case, and we will have to try to find the root cause
and/or find a different solution.

So, if your serial port stops working, you can use the previous version
as a temporary workaround. Please let me know if you have any problems,
and tell me the specific configuration you are able to reproduce the
problem on.

John Marvin
jsm@fc.hp.com


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Making, drinking tea and reading an opus magnum from Stan Sieler:
> Hi,
re

> > okie, but why emulating gate instruction, when there is already such
> > instruction exist? (;
> 
> Simple: HP does this...there must be a reason.
> 
> They appear to do it on selected models of PA-RISC systems.  Why?  Don't know.
which models? could it be level 1 systems w/ less VM resources?

> I can only conjecture...and the conjecture is the obvious one: there must be
> some circumstance where GATE fails.  Otherwise, *why* replace it with
> a slightly slower mechanism?
hardware bug for example? maybe again on certain systems w/ less
tlb size and/or cache.

btw, lites/mklinux do not emulate gate.

cu


-- 
    paranoic mickey       (my employers have changed but, the name has remained)


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] new debs and nfsroot tarball
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I have built native dynamic versions of the following Debian woody packages,

cpio_2.4.2-32_hppa.deb
debhelper_2.1.11_all.deb
findutils_4.1-40_hppa.deb
grep_2.4.2-1_hppa.deb
gzip_1.2.4-33_hppa.deb
hostname_2.07_hppa.deb
ldso_1.9.11-9_hppa.deb
sed_3.02-6_hppa.deb
sysvinit_2.78-4_hppa.deb
tar_1.13.17-2_hppa.deb
texinfo_4.0-4_hppa.deb

I have added them to the repository at,

http://puffin.external.hp.com/debian-hppa

Some of these we only had in static/cross-compiled form and some are new. I 
have added the above packages to the nfsroot tarball and placed it at,

ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/nfsroot-20000927.tar.g
z

There are still a few things that have not been rebuilt native/dynamic. I hope 
to do those later this week.

-- 
Matt Taggart
taggart@fc.hp.com



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From: David Huggins-Daines <dhd@linuxcare.com>
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Alan Modra <alan@linuxcare.com.au> writes:

> The reason aligning won't always work is that import and long branch
> stubs are interspersed in the stub section, and PIC long branch
> stubs happen to be 12 bytes long.  Which messes with your carefully
> constructed 8 byte alignment.

No, the issue is the alignment of the distance between the GP and the
PLT, it has nothing to do with the placement of the stubs AFAIK.

> The proper fix is to use lr_sel and rr_sel when building the import stubs,
> so I'm reverting your change unless you have some other reason for wanting
> 8 byte alignment.

Okay, so long as this fixes it, I have no objections.  My changes were
pretty ugly anyway.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


From - Thu Nov 08 21:13:33 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] floating point exception error
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--==_Exmh_-16236947030
Content-Type: text/plain; charset=us-ascii

In trying to build mawk I ran into a bug when the configure tried to test 
"floating point exceptions". Attached is the output. BTW- the gawk does 
something similar at the same point in it's configure.

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com


--==_Exmh_-16236947030
Content-Type: text/plain ; name="mawk.error"; charset=us-ascii
Content-Description: mawk.error
Content-Disposition: attachment; filename="mawk.error"

...
checking for fmod... yes
checking for matherr... yes
checking for limits.h... yes
checking return type of signal handlers... void
checking handling of floating point exceptions
        division by zer!!die_if_kernel: fpe_check(32468): Floating point exception 14
o does not gener
ate an exceptionPSW  : 0004ff0a  
        overflow doesGR 1 : 20020198   not generate anGR 2 : 000017c3   exception
GR 3 : 00000001  
GR 4 : 40160238  GR 5 : 00002f32  GR 6 : 00002efa  GR 7 : 00000001  
GR 8 : 00002f1a  GR 9 : 000b5210  GR10 : 000d2dd0  GR11 : 000d6230  
GR12 : 00000000  GR13 : ffffffff  GR14 : 000d4f50  GR15 : 00000000  
GR16 : 00095468  GR17 : 00000001  GR18 : 00000000  GR19 : 40160238  
GR20 : 7fffffff  GR21 : ffffffff  GR22 : 00000010  GR23 : 00000000  
GR24 : 00000000  GR25 : 7fffffff  GR26 : ffffffff  GR27 : 00002d30  
GR28 : 4015bf94  GR29 : 00000000  GR30 : 20020240  GR31 : 400c56cf  
SR0  : 00000000  SR1  : 00002006  SR2  : 00000000  SR3  : 00002006  
SR4  : 00002006  SR5  : 00002006  SR6  : 00002006  SR7  : 00002006  

IASQ : 00002006 00002006 IAOQ : 00001803 00001807 ORIG_R28 : 00000000
 IIR : 30002420 ISR : 00002006 IOR : 2002016c

!!die_if_kernel: fpe_check(32468): Floating point exception 14

PSW  : 0004ff0a  GR 1 : 00002d30  GR 2 : 0000172b  GR 3 : 00000001  
GR 4 : 40160238  GR 5 : 00002f32  GR 6 : 00002efa  GR 7 : 00000001  
GR 8 : 00002f1a  GR 9 : 000b5210  GR10 : 000d2dd0  GR11 : 000d6230  
GR12 : 00000000  GR13 : ffffffff  GR14 : 000d4f50  GR15 : 00000000  
GR16 : 00095468  GR17 : 00000001  GR18 : 00000000  GR19 : 40160238  
GR20 : 00003058  GR21 : 40084c2c  GR22 : 00000010  GR23 : 00000000  
GR24 : 200202d0  GR25 : 00000001  GR26 : 00003000  GR27 : 00002d30  
GR28 : 00000001  GR29 : 00000000  GR30 : 20020180  GR31 : 400c56cf  
SR0  : 00000000  SR1  : 00002006  SR2  : 00000000  SR3  : 00002006  
SR4  : 00002006  SR5  : 00002006  SR6  : 00002006  SR7  : 00002006  

IASQ : 00002006 00002006 IAOQ : 4006be2b 4006be2f ORIG_R28 : 00000000
 IIR : 2e90102c ISR : 00002006 IOR : 00003058

!!die_if_kernel: fpe_check(32468): Floating point exception 14

PSW  : 0004ff0a  GR 1 : 00002d30  GR 2 : 0000172b  GR 3 : 00000001  
GR 4 : 40160238  GR 5 : 00002f32  GR 6 : 00002efa  GR 7 : 00000001  
GR 8 : 00002f1a  GR 9 : 000b5210  GR10 : 000d2dd0  GR11 : 000d6230  
GR12 : 00000000  GR13 : ffffffff  GR14 : 000d4f50  GR15 : 00000000  
GR16 : 00095468  GR17 : 00000001  GR18 : 00000000  GR19 : 40160238  
GR20 : 00003058  GR21 : 40084c2c  GR22 : 00000010  GR23 : 00000000  
GR24 : 20020210  GR25 : 00000001  GR26 : 00003000  GR27 : 00002d30  
GR28 : 00000001  GR29 : 00000000  GR30 : 20020180  GR31 : 400c56cf  
SR0  : 00000000  SR1  : 00002006  SR2  : 00000000  SR3  : 00002006  
SR4  : 00002006  SR5  : 00002006  SR6  : 00002006  SR7  : 00002006  

IASQ : 00002006 00002006 IAOQ : 4006be2b 4006be2f ORIG_R28 : 00000000
 IIR : 2e90102c ISR : 00002006 IOR : 00003058

!!die_if_kernel: fpe_check(32468): Floating point exception 14

PSW  : 0004ff0a  GR 1 : 00002d30  GR 2 : 0000172b  GR 3 : 00000001  
GR 4 : 40160238  GR 5 : 00002f32  GR 6 : 00002efa  GR 7 : 00000001  
GR 8 : 00002f1a  GR 9 : 000b5210  GR10 : 000d2dd0  GR11 : 000d6230  
GR12 : 00000000  GR13 : ffffffff  GR14 : 000d4f50  GR15 : 00000000  
GR16 : 00095468  GR17 : 00000001  GR18 : 00000000  GR19 : 40160238  
GR20 : 00003058  GR21 : 40084c2c  GR22 : 00000010  GR23 : 00000000  
GR24 : 20020210  GR25 : 00000001  GR26 : 00003000  GR27 : 00002d30  
GR28 : 00000001  GR29 : 00000000  GR30 : 20020180  GR31 : 400c56cf  
SR0  : 00000000  SR1  : 00002006  SR2  : 00000000  SR3  : 00002006  
SR4  : 00002006  SR5  : 00002006  SR6  : 00002006  SR7  : 00002006  

IASQ : 00002006 00002006 IAOQ : 4006be2b 4006be2f ORIG_R28 : 00000000
 IIR : 2e90102c ISR : 00002006 IOR : 00003058

!!die_if_kernel: fpe_check(32468): Floating point exception 14

PSW  : 0004ff0a  GR 1 : 00002d30  GR 2 : 0000172b  GR 3 : 00000001  
GR 4 : 40160238  GR 5 : 00002f32  GR 6 : 00002efa  GR 7 : 00000001  
GR 8 : 00002f1a  GR 9 : 000b5210  GR10 : 000d2dd0  GR11 : 000d6230  
GR12 : 00000000  GR13 : ffffffff  GR14 : 000d4f50  GR15 : 00000000  
GR16 : 00095468  GR17 : 00000001  GR18 : 00000000  GR19 : 40160238  
GR20 : 00003058  GR21 : 40084c2c  GR22 : 00000010  GR23 : 00000000  
GR24 : 20020210  GR25 : 00000001  GR26 : 00003000  GR27 : 00002d30  
GR28 : 00000001  GR29 : 00000000  GR30 : 20020180  GR31 : 400c56cf  
SR0  : 00000000  SR1  : 00002006  SR2  : 00000000  SR3  : 00002006  
SR4  : 00002006  SR5  : 00002006  SR6  : 00002006  SR7  : 00002006  

IASQ : 00002006 00002006 IAOQ : 4006be2b 4006be2f ORIG_R28 : 00000000
 IIR : 2e90102c ISR : 00002006 IOR : 00003058

!!die_if_kernel: fpe_check(32468): Floating point exception 14

PSW  : 0004ff0a  GR 1 : 00002d30  GR 2 : 0000172b  GR 3 : 00000001  
GR 4 : 40160238  GR 5 : 00002f32  GR 6 : 00002efa  GR 7 : 00000001  
GR 8 : 00002f1a  GR 9 : 000b5210  GR10 : 000d2dd0  GR11 : 000d6230  
GR12 : 00000000  GR13 : ffffffff  GR14 : 000d4f50  GR15 : 00000000  
GR16 : 00095468  GR17 : 00000001  GR18 : 00000000  GR19 : 40160238  
GR20 : 00003058  GR21 : 40084c2c  GR22 : 00000010  GR23 : 00000000  
GR24 : 20020210  GR25 : 00000001  GR26 : 00003000  GR27 : 00002d30  
GR28 : 00000001  GR29 : 00000000  GR30 : 20020180  GR31 : 400c56cf  
SR0  : 00000000  SR1  : 00002006  SR2  : 00000000  SR3  : 00002006  
SR4  : 00002006  SR5  : 00002006  SR6  : 00002006  SR7  : 00002006  

IASQ : 00002006 00002006 IAOQ : 4006be2b 4006be2f ORIG_R28 : 00000000
 IIR : 2e90102c ISR : 00002006 IOR : 00003058

!!die_if_kernel: fpe_check(32468): Floating point exception 14

PSW  : 0004ff0a  GR 1 : 00002d30  GR 2 : 0000172b  GR 3 : 00000001  
GR 4 : 40160238  GR 5 : 00002f32  GR 6 : 00002efa  GR 7 : 00000001  
GR 8 : 00002f1a  GR 9 : 000b5210  GR10 : 000d2dd0  GR11 : 000d6230  
GR12 : 00000000  GR13 : ffffffff  GR14 : 000d4f50  GR15 : 00000000  
GR16 : 00095468  GR17 : 00000001  GR18 : 00000000  GR19 : 40160238  
GR20 : 00003058  GR21 : 40084c2c  GR22 : 00000010  GR23 : 00000000  
GR24 : 20020210  GR25 : 00000001  GR26 : 00003000  GR27 : 00002d30  
GR28 : 00000001  GR29 : 00000000  GR30 : 20020180  GR31 : 400c56cf  
SR0  : 00000000  SR1  : 00002006  SR2  : 00000000  SR3  : 00002006  
SR4  : 00002006  SR5  : 00002006  SR6  : 00002006  SR7  : 00002006  

IASQ : 00002006 00002006 IAOQ : 4006be2b 4006be2f ORIG_R28 : 00000000
 IIR : 2e90102c ISR : 00002006 IOR : 00003058

!!die_if_kernel: fpe_check(32468): Floating point exception 14

PSW  : 0004ff0a  GR 1 : 00002d30  GR 2 : 0000172b  GR 3 : 00000001  
GR 4 : 40160238  GR 5 : 00002f32  GR 6 : 00002efa  GR 7 : 00000001  
GR 8 : 00002f1a  GR 9 : 000b5210  GR10 : 000d2dd0  GR11 : 000d6230  
GR12 : 00000000  GR13 : ffffffff  GR14 : 000d4f50  GR15 : 00000000  
GR16 : 00095468  GR17 : 00000001  GR18 : 00000000  GR19 : 40160238  
GR20 : 00003058  GR21 : 40084c2c  GR22 : 00000010  GR23 : 00000000  
GR24 : 20020210  GR25 : 00000001  GR26 : 00003000  GR27 : 00002d30  
GR28 : 00000001  GR29 : 00000000  GR30 : 20020180  GR31 : 400c56cf  
SR0  : 00000000  SR1  : 00002006  SR2  : 00000000  SR3  : 00002006  
SR4  : 00002006  SR5  : 00002006  SR6  : 00002006  SR7  : 00002006  

IASQ : 00002006 00002006 IAOQ : 4006be2b 4006be2f ORIG_R28 : 00000000
 IIR : 2e90102c ISR : 00002006 IOR : 00003058

!!die_if_kernel: fpe_check(32468): Floating point exception 14

PSW  : 0004ff0a  GR 1 : 00002d30  GR 2 : 0000172b  GR 3 : 00000001  
GR 4 : 40160238  GR 5 : 00002f32  GR 6 : 00002efa  GR 7 : 00000001  
GR 8 : 00002f1a  GR 9 : 000b5210  GR10 : 000d2dd0  GR11 : 000d6230  
GR12 : 00000000  GR13 : ffffffff  GR14 : 000d4f50  GR15 : 00000000  
GR16 : 00095468  GR17 : 00000001  GR18 : 00000000  GR19 : 40160238  
GR20 : 00003058  GR21 : 40084c2c  GR22 : 00000010  GR23 : 00000000  
GR24 : 20020210  GR25 : 00000001  GR26 : 00003000  GR27 : 00002d30  
GR28 : 00000001  GR29 : 00000000  GR30 : 20020180  GR31 : 400c56cf  
SR0  : 00000000  SR1  : 00002006  SR2  : 00000000  SR3  : 00002006  
SR4  : 00002006  SR5  : 00002006  SR6  : 00002006  SR7  : 00002006  

IASQ : 00002006 00002006 IAOQ : 4006be2b 4006be2f ORIG_R28 : 00000000
 IIR : 2e90102c ISR : 00002006 IOR : 00003058

!!die_if_kernel: fpe_check(32468): Floating point exception 14

PSW  : 0004ff0a  GR 1 : 00002d30  GR 2 : 0000172b  GR 3 : 00000001  
GR 4 : 40160238  GR 5 : 00002f32  GR 6 : 00002efa  GR 7 : 00000001  
GR 8 : 00002f1a  GR 9 : 000b5210  GR10 : 000d2dd0  GR11 : 000d6230  
GR12 : 00000000  GR13 : ffffffff  GR14 : 000d4f50  GR15 : 00000000  
GR16 : 00095468  GR17 : 00000001  GR18 : 00000000  GR19 : 40160238  
GR20 : 00003058  GR21 : 40084c2c  GR22 : 00000010  GR23 : 00000000  
GR24 : 20020210  GR25 : 00000001  GR26 : 00003000  GR27 : 00002d30  
GR28 : 00000001  GR29 : 00000000  GR30 : 20020180  GR31 : 400c56cf  
SR0  : 00000000  SR1  : 00002006  SR2  : 00000000  SR3  : 00002006  
SR4  : 00002006  SR5  : 00002006  SR6  : 00002006  SR7  : 00002006  

IASQ : 00002006 00002006 IAOQ : 4006be2b 4006be2f ORIG_R28 : 00000000
 IIR : 2e90102c ISR : 00002006 IOR : 00003058

make: *** [build] Error 1

geordi:~/mawk/mawk-1.3.3# 


--==_Exmh_-16236947030--



From - Thu Nov 08 21:13:33 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] floating point exception error
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Matt Taggart <taggart@carmen.fc.hp.com> writes:

> In trying to build mawk I ran into a bug when the configure tried to test 
> "floating point exceptions". Attached is the output. BTW- the gawk does 
> something similar at the same point in it's configure.

Some additional info, since I'm aware of this bug:

The problem here is that the SIGFPE is not being delivered when the
test program expects it to be (the test program here being fpe_check.c
in the mawk sources).

First the program tries to generate divide-by-zero and overflow
exceptions.  I don't think the former ends up generating an exception,
but the latter does.  However this exception does not occur
immediately due to the odd 'deferred trapping' that the PA-RISC FPU
does.  The program then goes on to do some other stuff (testing
representation of NaN), which it does not expect to trap.  The next
floating point instruction occurs in maybe_nan(), and causes the
delayed trap to occur.

Since its SIGFPE handler does 'longjmp' to a place after where each
exception was expected to occur, this means the process jumps
backwards to the overflow test, and then loops endlessly doing this.

I don't understand the mechanics of FPU exceptions on PA-RISC at all.
The delayed trapping scheme and multiple exception registers are weird
to say the least - all machines I've seen in the past are either
totally imprecise like older Alphas, or deliver one exception at a
time, synchronously, the way that user code expects them to.

We probably need more complicated FPU trap logic in the kernel in
order to deliver exceptions in the proper POSIX and IEEE manner.  I
would appreciate it if someone from HP could comment on this - how
does HP/UX handle this?

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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John Marvin <jsm@udlkern.fc.hp.com> writes:

> This is not good. At "4--->" above r8 is being saved above the stack
> pointer, i.e. before the stack pointer is incremented at "5--->" above.
> This is a compiler bug, and I rebuilt my compiler from top of branch
> sources to make sure that it is still there. It is.

More follow up on this.  I've isolated the optimization flag that
causes this, which is -fschedule-insns2 (or, as it's known internally,
'flag_schedule_insns_after_reload').  Which if you think about it
makes perfect sense given the description of the problem, since the
references to memory off the stack pointer are generated in reload.

Somehow I guess this pass has to be made aware that it can't reorder
references to the stack pointer and frame pointer with respect to each
other ... or something.

I'll keep investigating this when I have time but I don't see an
immediate solution to it.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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David Huggins-Daines <dhd@linuxcare.com> writes:

> We probably need more complicated FPU trap logic in the kernel in
> order to deliver exceptions in the proper POSIX and IEEE manner.

Yes, I'm handwaving.  Of course POSIX says nothing about this, and I
don't exactly know what IEEE says about delivery of exceptions (just
that certain exception flags need to exist).

The FPU support that I've put in glibc is specified by ANSI C99 (not
C89 as far as I can tell), and is found in <fenv.h>

A cursory comparison of this header file on GNU libc 2.1.92 vs. HP/UX
11 reveals that HP/UX implements the same functions, except for
feenableexcept() which does not exist on HP/UX.  The definition of
fenv_t is different from what I expected in that it does not include
the exception status registers (LSW of %fr0, %fr1-%fr3), only the
status word (MSW of %fr0).  Also, I notice that the FE_* macros refer
to the flag bits rather than the enable bits in the floating point
status word, and are different in wide mode (!).

> I would appreciate it if someone from HP could comment on this -
> how does HP/UX handle this?

Just for the record, this is what the mawk configure test reports on
HP/UX 11:

checking handling of floating point exceptions
        division by zero does not generate an exception
        overflow does not generate an exception
        math library supports ieee754

Which is the same as reported by Linux/i386.

Linux/alpha without -mieee reports:

checking handling of floating point exceptions
	division by zero generates an exception
	overflow does not generate an exception
(and then some warnings at the end)

Whereas with -mieee we get the same results as HP/UX 11 and
Linux/i386.

So it looks like we are either not managing to set up %fr0 properly on
process startup or we are mangling it in the kernel or libc somewhere
along the way.  I'll investigate further today.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


From - Thu Nov 08 21:13:33 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] (user land) Core dumping, across the universe
Date: 28 Sep 2000 12:24:33 -0400
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Hi,

Well the good news is that dumping core Just Works, so we're at least
part of the way towards having Emacs running ;-)

The bad news is that the core dumps are rather funny looking.

My very simple (dereference a bad pointer) test program produces the
following dump:

avalanche:~# ls -l core
-rw-------    1 root     root     268500992 Sep 28 12:21 core
avalanche:~# objdump -x core

core:     file format elf32-hppa
core
architecture: hppa1.0, flags 0x00000000:

start address 0x00000000

Program Header:
    NOTE off    0x00000174 vaddr 0x00000000 paddr 0x00000000 align 2**0
         filesz 0x00000714 memsz 0x00000000 flags ---
    LOAD off    0x00001000 vaddr 0x00001000 paddr 0x00000000 align 2**12
         filesz 0x00000000 memsz 0x00001000 flags r-x
    LOAD off    0x00001000 vaddr 0x00002000 paddr 0x00000000 align 2**12
         filesz 0x00001000 memsz 0x00001000 flags rwx
    LOAD off    0x00002000 vaddr 0x20000000 paddr 0x00000000 align 2**12
         filesz 0x10000000 memsz 0x10000000 flags rwx
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^

Wow, look at the size of that stack segment!  We *really* need to have
this be dynamically growable instead of just mapping a whole gigabyte
in the middle of process space.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


From - Thu Nov 08 21:13:33 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New, Bug Free [tm] gcc and binutils packages
Date: 28 Sep 2000 17:53:04 -0400
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To: parisc-linux@thepuffingroup.com
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Hi,

I've just uploaded source and binary packages of gcc, g++, cpp, and
libstdc++ to puffin.external.hp.com.  See
ftp://puffin.external.hp.com/pub/debian-hppa/ and
ftp://puffin.external.hp.com/pub/debian-hppa-source/

This is basically egcs 20000925 snapshot with the PA-RISC patches
applied.  It compiles itself (as far as I can tell - I've been
shortcutting a bit since the A180 is so horribly slow) and should now
manage to bootstrap itself; the previous version we had been using
miscompiled fold-const.c when not optimizing, as is the case when
building the initial bootstrap compiler (but not when cross-building
or building with simply 'make' rather than 'make bootstrap'...)

In order to bootstrap you must have the new compiler installed,
because the old one (20000822) will break as mentioned above.

There are also source packages of the latest binutils CVS source,
which I'll native build eventually (as mentioned above the A180 is
slow as molasses and I'm currently testing GCC bootstrap).  Alan:
would it be okay to check the Debian packaging stuff into our binutils
CVS?

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


From - Thu Nov 08 21:13:33 2018
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From: "Jason Wong" <jasonw@tntexpress.com.hk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Running Linux on HP G70 Machine
Date: Fri, 29 Sep 2000 10:19:30 +0800
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------=_NextPart_000_0000_01C029FE.C0FECD10
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	charset="iso-8859-1"
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Hi,

I have a fairly old HP G70 machine sitting in the store room... I wish to
try linux on it, but don't know how to get started, can you show me where to
get some documentations on how to get the sources, perhaps which
distribution to try?

I hope I can get Apache on it, and start a web server for my department.

Thanks,
Jason

------=_NextPart_000_0000_01C029FE.C0FECD10
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 5.50.4207.2601" name=3DGENERATOR></HEAD>
<BODY>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D354535801-29092000>Hi,</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D354535801-29092000></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D354535801-29092000>I have =
a fairly old=20
HP G70 machine sitting in the store room... I wish to try linux on it, =
but don't=20
know how to get&nbsp;started, can you show me where to get some =
documentations=20
on how to get the sources, perhaps which distribution to=20
try?</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D354535801-29092000></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D354535801-29092000>I hope =
I can get=20
Apache on it, and start a&nbsp;web server&nbsp;for my=20
department.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D354535801-29092000></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D354535801-29092000>Thanks,</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D354535801-29092000>Jason</SPAN></FONT></DIV></BODY></HTML>

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From - Thu Nov 08 21:13:33 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] floating point exception error
Date: 29 Sep 2000 14:28:40 -0400
Organization: Linuxcare, Inc.
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	<873dilo9dp.fsf@tarwebok.i-did-not-set--mail-host-address--so-shoot-me>
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David Huggins-Daines <dhd@linuxcare.com> writes:

> So it looks like we are either not managing to set up %fr0 properly on
> process startup or we are mangling it in the kernel or libc somewhere
> along the way.  I'll investigate further today.

GAR!  So the problem is obvious.  Not only is GCC emitting the wrong
comparison condition (<> vs. !=), but log(-8.0) is returning a
signalling NaN on GNU/Linux, and a quiet one on HP/UX:

avalanche:~# ./fptest3
foo.l is 7fffffffffffffff
!!die_if_kernel: fptest3(154): Floating point exception 14
(etc...)

bash-2.03$ ./fptest3
foo.l = 7ff4000000000000

Time for the self-LART again I guess :)

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


From - Thu Nov 08 21:13:33 2018
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From: A Joseph Koshy <koshy@postbox.india.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] archives anywhere?
Date: Wed, 31 Mar 1999 12:22:32 +0530 (IST)
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Hi,

Are the archives of the hppa-linux (parisc-linux) mailing list to be 
found on the web somewhere?  A pointer would be appreciated.

Thanks,
Koshy
<koshy@india.hp.com>


From - Thu Nov 08 21:13:34 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] floating point exception error
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Xref: news.gmane.org gmane.linux.ports.parisc:8024

> David Huggins-Daines <dhd@linuxcare.com> writes:
> 
> > So it looks like we are either not managing to set up %fr0 properly on
> > process startup or we are mangling it in the kernel or libc somewhere
> > along the way.  I'll investigate further today.
> 
> GAR!  So the problem is obvious.  Not only is GCC emitting the wrong
> comparison condition (<> vs. !=), but log(-8.0) is returning a
> signalling NaN on GNU/Linux, and a quiet one on HP/UX:

The difference between <> and != is an `*' in the unordered column
(<> has the *).  The * is supposed to indicate that the instruction
causes an invalid operation exception if its operands are unordered.
This occurs when at least one operand is a NaN.  However, if at least
one operand is a signaling NaN, a compare instruction always causes
an invalid operation exception.  Thus, the <> form should cause
an exception for any NaN.  Isn't this what you want?

The hpux man page doesn't specify the type of NaN returned by log().
There are several versions of log under: milli.a, pa1.1/libm, libm.
This may affect the return.  The milli.a log function is probably
faster but may not meet all the standards.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


From - Thu Nov 08 21:13:34 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] floating point exception error
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David Huggins-Daines <dhd@linuxcare.com> writes:

> GAR!  So the problem is obvious.  Not only is GCC emitting the wrong
> comparison condition (<> vs. !=), but log(-8.0) is returning a
> signalling NaN on GNU/Linux, and a quiet one on HP/UX:

And yet, not so obvious.

According to the glibc documentation and comments, the GNU libm's
behaviour is correct and the HP/UX behaviour is not.

However, that's okay, because according to the glibc documentation,
the defined IEEE exceptions (the VZOUI bits in the status register)
should *not* cause SIGFPE by default, but should simply set the
appropriate flag bits in the status register.  This is consistent with
the behaviour of IEEE compliant floating point on all other GNU/Linux
platforms.

And, guess what, the register dump from the floating point exception
trap handler on Linux *clearly* shows that invalid traps are *not*
enabled in the status word (!!).

This program:

#include <signal.h>
#include <math.h>

double
div_by(x,y)
   double x ;
   double y ;
{
   return x/y ;
}

double overflow(x)
   double x ;
{
   double y ;

   do
   {
      y = x ;
      x *= x ;
   } while( y != x ) ;
   return x ;
}

int main()
{
	union {
		double d;
		unsigned long long l;
	} foo;

	div_by(30.0, 0.0);
	overflow(1000.0);

	foo.d = log(-8.0);
	printf("foo.l is %016llx\n", foo.l);
	sleep(1);
	if (foo.d == foo.d)
		return 1;

	return 0;
}

Generates the following output on my A180 (with my patch to traps.c to
show floating point status and exceptions):

avalanche:~# ./fptest3
foo.l is 7fffffffffffffff
!!die_if_kernel: fptest3(154): Floating point exception 14

PSW  : 0004ff0a  GR 1 : fffff000  GR 2 : 000015db  GR 3 : 20020100  
GR 4 : 40160600  GR 5 : 0000279e  GR 6 : 000027b6  GR 7 : 00000001  
GR 8 : 00002786  GR 9 : 000a5810  GR10 : 000afcd0  GR11 : 000afe50  
GR12 : 00000000  GR13 : ffffffff  GR14 : 000afdd0  GR15 : 00000000  
GR16 : 000914d0  GR17 : 00000001  GR18 : 20020128  GR19 : 40160600  
GR20 : 000000a2  GR21 : 00000000  GR22 : 00000001  GR23 : 00000008  
GR24 : 00000000  GR25 : 20020188  GR26 : 20020188  GR27 : 00002758  
GR28 : 00000000  GR29 : 00000300  GR30 : 20020180  GR31 : 4006d4df  
SR0  : 00000000  SR1  : 00002002  SR2  : 00000000  SR3  : 00002002  
SR4  : 00002002  SR5  : 00002002  SR6  : 00002002  SR7  : 00002002  

IASQ : 00002002 00002002 IAOQ : 000015e7 000015eb ORIG_R28 : 00000000
 IIR : 30002420 ISR : 00002002 IOR : 20020108

Floating point status/exception:

FR0: ec30004000000000
FR1: 26f60c1900000000
FR2: 0000000000000000
FR3: 0000000000000000
Floating point exception

The value of FR0L above can be read as:

  flag                                                 enable

V Z O U I C . . . . . . . . . . . . . . .  RM . . T D V Z O U I

1 1 1 0 1 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0

|  E   |   C   |   3   |   0   |   0   |  0    |   4   |   0  |

As you can see, the I enable bit is zero (so we should NOT have
trapped here according to the architecture manual), the T bit is on
(because obviously we *have* trapped), and the V, Z, O, and I flags
are also on (because we had previously triggered overflow,
div-by-zero, and invalid exceptions).

I have no idea why the exception shows up in FR1L instead of in FR0R
(pipeline mysteries I guess), but anyway that value can be read as:

|  2   |   6   |   F   |   6   |   0   |  C    |   1   |   9  |

0 0 1 0 0 1 1 0 1 1 1 1 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 1 1 0 0 1

  exc      |              non-opcode bits of instruction

This corresponds to the following instruction:

    15e0:       32 f6 0c 19     fcmp,dbl,<> fr23,fr22,

As you can see GCC has generated a trap-on-unordered comparison
condition (<>) here.  The HP compiler generates the != condition
instead.  However if I hex-edit the binary to change the condition:

    15e0:       32 f6 0c 1a     fcmp,dbl,!= fr23,fr22,

Then I still get a trap!

Well, on reflection, I notice that the high 6 bits indicate an
Unimplemented exception with opcode 0xC.  Yes, "Unimplemented", not
"Invalid".  WTF!

So, are unordered comparisons just not handled by the 7300LC?  Which
processors are they handled correctly on, if any?  Is there any HP
documentation on this?  Are there any HP/UX architects in the house? :)

It looks like we are going to need some floating-point completion
support in the kernel, which evidently is going to involve walking the
trap shadow and other fun things I thought you only had to do on DEC
machines ;)

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


From - Thu Nov 08 21:13:34 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] floating point exception error
Date: 29 Sep 2000 15:41:58 -0400
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Ah, well, on further study, the documentation
(http://puffin.external.hp.com/docs/pcxl2_ers.pdf) explains all, for
the 7300LC at least.

However, if we intend to support PA2.0, then we will need to have some
kind of documentation on what parts of the FPU architecture the
various PA2.0 chips implement.

> So, are unordered comparisons just not handled by the 7300LC?  Which

According to the docs:

    4.3 Unimplemented Exception/Trap

    The only kind of exception generated by the PA7300LC floating point is
    the unimplemented exception.  It is always signaled with a delayed
    floatingpoint exception trap.  The unimplemented trap is raised
    instead of the overflow, un- derflow, division by zero, invalid and
    inexact traps.

Well, that's just great :P

> I have no idea why the exception shows up in FR1L instead of in FR0R

According to the docs:

    4.3.6 Exception Registers

    The excepting flop will be in exception register 2.  PARISC 1.1
    exception codes are used.  Exception registers 1, 3, 4, 5, 6, and 7
    may be loaded or stored, but hardware will never place an excepting
    flop in them.

    Exception register 2 is guaranteed to retain its contents as long as
    the T bit remains set and continuing thereafter until a flop is
    executed, or until it is explicitly cleared by software with a load.

Okay, that makes life easier, at least.  I'm really fearful of what
the 8500/8600 will do though.  You'd think that since they execute out
of order they'd be able to provide some sort of precise trapping..

> It looks like we are going to need some floating-point completion
> support in the kernel, which evidently is going to involve walking the
> trap shadow and other fun things I thought you only had to do on DEC
> machines ;)

Well, I guess not on 7300LC at least, given that only FR1L (except2)
is used.  So that's a relief.  I'll see if I can write a rudimentary
completion handler today that should at least enable us to build awk
and so forth.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


From - Thu Nov 08 21:13:34 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Running Linux on HP G70 Machine
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On Fri, Sep 29, 2000 at 10:19:30AM +0800, Jason Wong wrote:
> I have a fairly old HP G70 machine sitting in the store room... I wish to
> try linux on it, but don't know how to get started, can you show me where to
> get some documentations on how to get the sources, perhaps which
> distribution to try?

FAQ:

The earliest PA-RISC servers have proprietary HP devices attached to
proprietary HP bus architectures. It is unlikely that documentation
on these busses and devices will ever become available, since so few
people are interested in spending any effort finding and releasing the
docs. Machines in this category are the E, F, G, H, I class (aka Nova)
and T500 series (Emerald) machines as well as some earlier, unlettered
servers.

-- 
Revolutions do not require corporate support.


From - Thu Nov 08 21:13:34 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] I am not your mother!
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I'd really appreciate it if people would update the website when they
make changes to how something works that will be user visible.  It's not
hard; just cvs co website, make your corrections, and cvs ci.

My thanks to the people who _do_ do this already, including grant,
dhd and paul (keeping the status page up to date is rather important!).

Is there anything which can be done to make updating the website easier?
I've done my best to make it logical and easy; including getting rid
of the unusual build tool we were using and reducing the dependencies
involved in getting the page datestamp correct.  There's nothing _hard_
to do, if you know enough to write code and check it in, you can handle
the website.  So what's stopping you?

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] floating point exception error
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> This corresponds to the following instruction:
> 
>     15e0:       32 f6 0c 19     fcmp,dbl,<> fr23,fr22,
> 
> As you can see GCC has generated a trap-on-unordered comparison
> condition (<>) here.  The HP compiler generates the != condition
> instead.  However if I hex-edit the binary to change the condition:
> 
>     15e0:       32 f6 0c 1a     fcmp,dbl,!= fr23,fr22,

Under hpux 10.20, I find that both GCC and the HP compiler generate
the != predicate.  If you look at the `Y' predicates generated in pa.c
for floating point compares, I can't see how <> could be generated.
If it actually is generating <> for fcmp's under linux, this should
be looked at.

Compared to the i386 implementation, GCC provides only a basic floating
point compare implementation.  The CCFP and CCFPU modes are supposed to
be compare with and without exceptions, respectively.  However, it
doesn't appear that the form with exceptions is generated by GCC on the
PA even though the mode is specified as CCFP. Not sure how these two
modes are selected.

> Then I still get a trap!

The print out above indicates that log has returned a signaling NaN.
This should cause an exception in the fcmp instruction if the invalid
operation exception is enabled.  Under hpux on a 735, log returns a
quiet NaN (7ff4000000000000).

> Well, on reflection, I notice that the high 6 bits indicate an
> Unimplemented exception with opcode 0xC.  Yes, "Unimplemented", not
> "Invalid".  WTF!

The exception code seems to be 001001 (overflow & unimplemented?).  The
manual that I have doesn't specify what this code means.  I did see
a comment in the hpux floating point guide that when an invalid operation
occurs when invalid operation traps are disabled, then the system
substitutes a quiet NaN as the result of the operation.  Maybe HP is
using the unimplemented exception to do this.  This happens when an
implementation chooses not to execute an instruction.  Thus, I agree
with you that some sort of floating point completion code is going
to be needed in the kernel.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


From - Thu Nov 08 21:13:34 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
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Matthew Wilcox <matthew@wil.cx> writes:

> Is there anything which can be done to make updating the website easier?

I keep losing the password, that's the only problem.

I'd really prefer to have the website be updated from a cron job.

Obviously it would be better for it to be hosted on PEHC in this case,
since otherwise we'd have to store the password in the clear on
PEHC or whatever machine runs that job.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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On Mon, Oct 02, 2000 at 10:17:11AM -0400, David Huggins-Daines wrote:
> Matthew Wilcox <matthew@wil.cx> writes:
> 
> > Is there anything which can be done to make updating the website easier?
> 
> I keep losing the password, that's the only problem.

It's tunnelled over ssh.  You can put your identity.pub in the appropriate
machine's authorized_keys file.  Hm, I should probably take mine out :-)
It's currently up to date.

> I'd really prefer to have the website be updated from a cron job.

Doable.  I'd prefer this as well -- or even better from a trigger which
runs as soon as there's a cvs commit to the website directory.

> Obviously it would be better for it to be hosted on PEHC in this case,
> since otherwise we'd have to store the password in the clear on
> PEHC or whatever machine runs that job.

I think the plan is to move it to pehc once pehc's been upgraded.
Matt?  Any idea on when this'll happen?

-- 
Revolutions do not require corporate support.


From - Thu Nov 08 21:13:34 2018
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] libmilli.a
Date: Tue, 3 Oct 2000 02:05:14 +1100 (EST)
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Here's how to make ld always link in a special library, even when
someone is messing around with linker scripts and so forth.  I've been
playing with this today, and after fixing some gcc and linker c++ probs
now can pass all the binutils testsuite (some of which used to fail due to
not finding $$dynamic)

For my testing, I just moved $$dynamic from libgcc.a into libmilli.a, but
we should move more functions I guess.

Comments?

Index: ld/emultempl/hppaelf.em
===================================================================
RCS file: /home/cvs/parisc/binutils/ld/emultempl/hppaelf.em,v
retrieving revision 1.10
diff -u -p -r1.10 hppaelf.em
--- hppaelf.em	2000/09/27 09:13:09	1.10
+++ hppaelf.em	2000/10/02 05:33:54
@@ -71,6 +71,16 @@ hppaelf_create_output_section_statements
   ldlang_add_file (stub_file);
 }
 
+/* Adds millicode library to the list of input files.  */
+
+static void
+hppaelf_after_parse ()
+{
+  lang_add_input_file ("milli",
+		       lang_input_file_is_l_enum,
+		       NULL);
+}
+
 /* Walk all the lang statements splicing out any padding statements from
    the list.  */
 
@@ -401,3 +411,4 @@ PARSE_AND_LIST_ARGS_CASES='
 #
 LDEMUL_FINISH=hppaelf_finish
 LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=hppaelf_create_output_section_statements
+LDEMUL_AFTER_PARSE=hppaelf_after_parse


From - Thu Nov 08 21:13:34 2018
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From: "MEYER,ALAN C. \(HP-FtCollins,ex1\)" <alan_meyer@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] I am not your mother!
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FYI, there have been some discussions between LC and HP about various
improvements to the web site.  If you are planning any significant changes
to the web site, it would be good to make sure  Jane is aware ... LC was
going to take the next step on proposing how we move ahead with some
suggested improvements.

Ala

>-----Original Message-----
>From: Matthew Wilcox [mailto:matthew@wil.cx]
>Sent: Monday, October 02, 2000 8:26 AM
>To: David Huggins-Daines
>Cc: Matthew Wilcox; parisc-linux@thepuffingroup.com
>Subject: Re: [parisc-linux] I am not your mother!
>
>
>On Mon, Oct 02, 2000 at 10:17:11AM -0400, David Huggins-Daines wrote:
>> Matthew Wilcox <matthew@wil.cx> writes:
>> 
>> > Is there anything which can be done to make updating the 
>website easier?
>> 
>> I keep losing the password, that's the only problem.
>
>It's tunnelled over ssh.  You can put your identity.pub in the 
>appropriate
>machine's authorized_keys file.  Hm, I should probably take 
>mine out :-)
>It's currently up to date.
>
>> I'd really prefer to have the website be updated from a cron job.
>
>Doable.  I'd prefer this as well -- or even better from a trigger which
>runs as soon as there's a cvs commit to the website directory.
>
>> Obviously it would be better for it to be hosted on PEHC in 
>this case,
>> since otherwise we'd have to store the password in the clear on
>> PEHC or whatever machine runs that job.
>
>I think the plan is to move it to pehc once pehc's been upgraded.
>Matt?  Any idea on when this'll happen?
>
>-- 
>Revolutions do not require corporate support.
>
>---------------------------------------------------------------
>------------
>To unsubscribe: send e-mail to 
>parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.
>


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Xref: news.gmane.org gmane.linux.ports.parisc:8034



Send a message with 'help' as the subject to
parisc-linux-request@thepuffingroup.com (also send a message with
'archive help' as the subject.)

Also, note the X-Mailing-List header below which shows the directory
name, which will be relevant after you read what listserv sends back to
you.

Rich

> From parisc-linux-request@thepuffingroup.com  Tue Mar 30 23:34:38 1999
> Delivered-To: rrauenza@cup.hp.com
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> Date: Wed, 31 Mar 1999 12:22:32 +0530 (IST)
> From: A Joseph Koshy <koshy@postbox.india.hp.com>
> Message-Id: <199903310652.MAA07836@postbox.india.hp.com>
> To: hppa-linux@puffingroup.com
> Subject: [parisc-linux] archives anywhere?
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From - Thu Nov 08 21:13:34 2018
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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: [parisc-linux] flush_icache_range problem
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Xref: news.gmane.org gmane.linux.ports.parisc:8035

Richard Hirst wrote:
> Added a flush of the data cache after copying a module from userland to
> kernel land.  I guess that without this the module code is still in the
> data cache and hasn't been flushed through to memory.  Maybe copy_from_user()
> should flush caches really (as it used to do).

No, copy_from_user should not be doing any cache flushing. EVERY other
call, except for this case, does not need, and would suffer from,
flushing the cache.

The problem here is that data is being brought in from user land to
be executed in the kernel. Since PARISC has separate I&D caches, the
data has to be pushed out from the data cache, and the instruction
cache has to be invalidated so that the instructions will be read
into the I cache.

sys_init_module() calls flush_icache_range() to solve this problem.  The
problem is that the current implementation is only flushing the icache,
where it should be flushing the dcache first (As does other
implementations on other architectures where it is necessary) .  Of
course, other parisc cache routines are using flush_icache_range assuming
it is only flushing the icache. This could be easily hacked, but I am
reluctant to spend any time applying more bandaids.

So, adding the dcache flush is an acceptable workaround for now, and if I
forget to remove it when I fix the cache management code, we will catch it
when we prepare for the upstream merge.

I am well aware that system performance sucks, due to the cache management
code flushing everything all the time, and I intend to fix it.  But,
stability is more important to me than performance right now.  I will work
on proper cache management once I stop finding easily reproducible system
crashes (e.g. simply doing a large cpio from nfs root to a scsi disk on an
A180 HPMC's the machine every time).  I didn't realize that
flush_icache_range was broken, since I thought that everything had been
reverted back to flushing everything and missed the difference.  This
looks like the only case where it matters though, since the other callers
of flush_icache_range are there for aout support.

John Marvin
jsm@fc.hp.com


From - Thu Nov 08 21:13:34 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] sys_delete_module() entered with ints disabled
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Hi,
  sys_delete_module() (and presumably other system calls) is entered
with interrupts disabled (sm=0x000a), which causes problems trying to
unload kernel module sym53c8xx.o as it waits for a timer tick.
I had a quick look at syscall.S, but didn't see anything wrong
there.  Anyone know where/why they get disabled?

Richard


From - Thu Nov 08 21:13:35 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Kernel modules working for 32 bit kernels
Date: Tue, 3 Oct 2000 12:55:45 +0100
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Hi,
  Loading/unloading of kernel modules now works for 32 bit kernels.
You need to build modutils from cvs.  I've tested it by loading
core scsi support, scsi disk support, sym53c8xx driver, and ext2 file
system support, and then accessing a file system off the 53c875 on
my A180.

Trying to unload the sym53c8xx module causes a kernel crash as
a result of interupts being disabled on entry to the syscall and the
module not cancelling its timer.

Richard


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From: Paul Bame <bame@noam.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: PA-RISC linux cd
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Matthew - I can never remember which 715's are supported so I'm passing
your note to the mailing list.

= I've aquired a 715/33 - minus monitor or keyboard (but I do have a
= mouse!) - do you know if there anywhere I can get details of these
= machines or a keyboard and monitor?  I do have an A1097C 19" monitor
= minus a cable - will that do?  We use a lot of HP kit here, but the HP
= website doesn't seen to have anything on these machines.  I understand I
= can get onto them with a serial cable - how do I set that up?  I'm
= pretty sure it works ok (I found it in a rubbish skip!) cos when I start
= it up I get no error beeps, and it all sounds normal.  Sorry to ramble
= on - if you can't help then that's ok.

	-P


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: Errors building toolchain
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"Thomas Marteau" wrote:
> Hi,
> 
> We are compiling the toolchain and we notice some mistakes we want to share
> just in case.

Hi Thomas,
Which host are you using to build the tools chain on/for?
What's the URL for the instructions you are referring too?
(I want to make sure we are talking about the same page)


I have updated the build-tools/recipe.linux to build a hppa-linux
cross compiler. And my builds now die with:
...
/linux/pa32/xc-build/build-gcc/gcc/xgcc -B/linux/pa32/xc-build/build-gcc/gcc/ -B/opt/puffin/hppa-linux/bin/ -B/opt/puffin/hppa-linux/lib/ -isystem /opt/puffin/hppa-linux/include -shared  .libs/adler32.o .libs/compress.o .libs/crc32.o .libs/deflate.o .libs/gzio.o .libs/infblock.o .libs/infcodes.o .libs/inffast.o .libs/inflate.o .libs/inftrees.o .libs/infutil.o .libs/trees.o .libs/uncompr.o .libs/zutil.o   -Wl,-soname -Wl,libzgcj.so.0 -o .libs/libzgcj.so.0.0.0
/opt/puffin/hppa-linux/bin/ld: cannot open crti.o: No such file or directory
collect2: ld returned 1 exit status
make[1]: *** [libzgcj.la] Error 1
make[1]: Leaving directory `/linux/pa32/xc-build/build-gcc/hppa-linux/zlib'
make: *** [install-target-zlib] Error 2

This is already in the install phase - so the build completed.
"ls -l" tells me hppa-linux-* stuff in /opt/puffin/bin was replaced.
The recipe.linux seems to have mostly completed.


> 1) Compiling gcc, we have an error which says that he can't find errno.h!
> 
> of course, it looks for it in $DEST/hppa-linux/include and the instructions
> say that include should be in $DEST --> does it look OK to you? because when
> you compile the kernel, it makes the same placement mistake. That's why we
> think that the include directory should be in $DEST/hppa-linux/. This would
> mean that help on your website is obsolete.

I can't reproduce this error since I don't actually follow the posted
instructions anymore...got tired of maintaining those. It was simpler
for me to just maintain the build-tools/recipe.linux script.

> 
> 2) Once gcc is installed, gcc program name is hppa1.1-linux-... and to
> compile the kernel, the system expects to have hppa-linux-...

hppa1.1-linux- prefix is obsolete.
Please post either the URL where you found that or (better) a patch for
the URL of what you think the help/instructions should say.

> We changed it to --target=hppa-linux and now it works ok, but is this
> logical?

Uh...that's what it's supposed to be.
(I'm not going to consider if it is or isn't logical.  :^)

> 3) Our NFSroot is read-only even if  we have configured the NFS server and
> said that it was read/write enabled.

Try:
  mount -o remount,rw /

and check the /etc/fstab entry for /. Should be something like:
    hpisp747:/tftpboot/hppa   /   nfs    defaults,errors=remount-ro   0  1


cheers,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Paul Bame wrote:
> 
> Matthew - I can never remember which 715's are supported so I'm passing
> your note to the mailing list.
> 
> Matthew Halliday <matthewh@fesa.co.uk> wrote:
> = I've aquired a 715/33 - minus monitor or keyboard (but I do have a
> = mouse!) - do you know if there anywhere I can get details of these
> = machines or a keyboard and monitor?  I do have an A1097C 19" monitor
> = minus a cable - will that do?

I think the 1097 is a SOG monitor - should work.
You do need a keyboard to use it though.

>  We use a lot of HP kit here, but the HP
> = website doesn't seen to have anything on these machines.  I understand I
> = can get onto them with a serial cable - how do I set that up?

Connect a NULL modem from Serial port 1 to a terminal or linux box and
set it up for 9600N8. *NOT* connecting a keyboard defaults the console
to the serial port.

You should be able to find more help with 715/33 machines by scrounging
through the parisc-linux mail archives.

hope this helps,
grant

> = I'm
> = pretty sure it works ok (I found it in a rubbish skip!) cos when I start
> = it up I get no error beeps, and it all sounds normal.  Sorry to ramble
> = on - if you can't help then that's ok.
> 
> 	-P
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] glibc 2.1.94 CVS merge, packages on the way, ABI breakage :(
Date: 03 Oct 2000 18:06:16 -0400
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Hi,

I've merged pehc CVS with glibc 2.1.94 release (no more tracking CVS
for me, too much pain).

The patch is clean enough that I'm able to just add it to the Debian
glibc 2.1.94 source package.  So I will build that overnight
(hopefully) and upload it sometime soon.

For the time being there is a tarball at
ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/glibc-2.1.94-20001003.tar.gz

But!  Beware!  It *will* break your system.  Somehow, the versions of
a bunch of symbols in libm.so.6 reverted to GLIBC_2.0 from GLIBC_2.2
(don't ask me how this happened, math/Versions is still exactly the
same...  I think our 2.1.92 had a bug in the script that generates the
version maps) and as a result, anything that links with libm will not
work.  This includes fun things like perl, awk, some parts of
shellutils, etc. etc.

Sorry about this, but I guess we have no choice, our old libm.so was
broken.

I'm rebuilding perl, shellutils, and awk and expect to have new
packages on pehc real soon now.  (perl's version will be 5.005.03-7.2,
shellutils and awk will be similarly bumped)

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Ulrich Drepper <drepper@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc 2.1.94 CVS merge, packages on the way, ABI breakage :(
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David Huggins-Daines <dhd@linuxcare.com> writes:

> But!  Beware!  It *will* break your system.  Somehow, the versions of
> a bunch of symbols in libm.so.6 reverted to GLIBC_2.0 from GLIBC_2.2

You never should have GLIBC_2.0 symbols.  The shlib-versions file
should have GLIBC_2.2 as the earliest version (third column).

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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Subject: Re: [parisc-linux] glibc 2.1.94 CVS merge, packages on the way, ABI breakage :(
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Ulrich Drepper <drepper@redhat.com> writes:

> You never should have GLIBC_2.0 symbols.  The shlib-versions file
> should have GLIBC_2.2 as the earliest version (third column).

Ah, I see what the problem is.  It seems that it is my fault :(

I take it that libc.so, libm.so, and ld.so should all be versioned
with GLIBC_2.2 as the base, then?

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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David Huggins-Daines <dhd@linuxcare.com> writes:

> I take it that libc.so, libm.so, and ld.so should all be versioned
> with GLIBC_2.2 as the base, then?

Every single DSO.  There is no compatibility to be preserved.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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From: Phil Schwan <pschwan@thepuffingroup.com>
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Subject: [parisc-linux] More mailing list goo
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Xref: news.gmane.org gmane.linux.ports.parisc:8045

By popular demand, parisc-linux now comes in two flavours: the same
great mailing list that you've come to love, and parisc-linux-digest,
which does as you might expect.

Since there's been little traffic as of late, the digest hasn't really
been tested.  I expect that the people who mailed me will give it a
try, and let me know if there are problems.

-Phil

------------------------------------------------------------------
"In film you will find four basic story lines. Man versus man, man
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc 2.1.94 CVS merge, packages on the way, ABI breakage :(
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Ulrich Drepper <drepper@redhat.com> writes:

> David Huggins-Daines <dhd@linuxcare.com> writes:
> 
> > I take it that libc.so, libm.so, and ld.so should all be versioned
> > with GLIBC_2.2 as the base, then?
> 
> Every single DSO.  There is no compatibility to be preserved.

Okay, yes, you're right.  Unfortunately we've built a bunch of
binaries against our broken libc, so it will all have to be rebuilt,
because all binaries expect to see GLIBC_2.0 and GLIBC_2.1 versions.

But I guess this is the right thing to do, since we really do not want
any of the compatibility cruft bloating our libc.

HP people note: Yes it looks like we have to rebuild everything.  I
think I can get things up again rather quickly, as I just need to
build a static toolchain and then relink all the packages that are
sitting around built on my A180.  We will have to clear out the
archive in pehc:/pub/debian-hppa though.

I am not very pleased with symbol versioning at the moment :(

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] c3k output
Date: Tue, 3 Oct 2000 18:32:52 -0700 (PDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:8047

I just wanted to share the c3k console output that I get so far.
I'm still using NFS root w/Serial (add-on) console.
Tomorrow I will connect some SCSI disks and try to boot/copy
to/from them.

The output from this system is interesting in that it has an 896 SCSI
card installed and it seems to work...though I don't currently have any
disks connected.

I also wanted to note that "reboot" command doesn't work.
"gsc.c: cmd 1" is printed on the console but that's it.
Doesn't do anything else.

later,
grant



Firmware Version 4.0

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache 
  ---------  --------   ---------------------  -----------------  -------------
      0      400 MHz    Active                 Functional         512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:              536870912 bytes
  Good memory required:           10223616 bytes

  Primary boot path:    FWSCSI.6.0
  Alternate boot path:  LAN.15.8.80.76.3.254
  Console path:         GRAPHICS(2)
  Keyboard path:        USB

CPU 0
WARNING:  Processor self-tests have been disabled because FASTBOOT is
          enabled.  To enable self-tests, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.
WARNING:  Memory has been initialized but not tested because FASTBOOT is
          enabled.  To test memory, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


----- Main Menu -------------------------------------------------------------

      Command                           Description
      -------                           -----------
      BOot [PRI|ALT|<path>]             Boot from specified path
      PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path
      SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices

      COnfiguration [<command>]         Access Configuration menu/commands
      INformation [<command>]           Access Information menu/commands
      SERvice [<command>]               Access Service menu/commands

      DIsplay                           Redisplay the current menu
      HElp [<menu>|<command>]           Display help for menu or command
      RESET                             Restart the system
-----
Main Menu: Enter command >       
Main Menu: Enter command > bo lan
Interact with IPL (Y, N, Q)?> n

Booting... 
Network Station Address 001083-360089

System IP Address 15.8.80.77
Server IP Address 15.8.81.247

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@hpisp747 Mon Oct  2 21:38:24 PDT 2000
0/vmlinux 2057017 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa '
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100120 first 00100000 n 3
Segment 0 load 00100000 size 1395192 mediaptr 0x1000
Segment 1 load 00256000 size 177736 mediaptr 0x156000
Segment 2 load 00284000 size 106496 mediaptr 0x182000
branching to kernel entry point 0x00100120
Set default PSW W bit to 0
PDC Console Initialized
The Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02cd000
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa '
PALO initrd 0-0
model   00005bb0 00000481 00000000 00000002 77cd9463 100000f0 00000008 000000b2 000000b2
vers    00000200
cpuid   00000224
CPUID vers 17 rev 4
CPU might be a PA8500 (PCX-W)
CPU(s): 1 x PA8500 (PCX-W) at 400.000000 MHz
Searching for devices in PDC firmware... processor hpa 0xfffa0000
a newer box...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
2. Elroy PCI Bridge (13) at 0xfed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
3. Elroy PCI Bridge (13) at 0xfed32000, versions 0x782, 0x0, 0xa, 0x0, 0x0
4. Elroy PCI Bridge (13) at 0xfed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
5. Elroy PCI Bridge (13) at 0xfed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. AllegroHigh W  (0) at 0xfffa0000, versions 0x5bb, 0x0, 0x4, 0x0, 0x81
7. AllegroHigh Memory (1) at 0xfed10200, versions 0x86, 0x0, 0x9, 0x0, 0x0
That's a total of 7 devices.
Linux version 2.4.0-test6 (grundler@hpisp747) (gcc version 2.96 20000925 (experimental)) #7 Tue Oct 3 17:50:26 PDT 2000
free_bootmem(0x2d1000, 0x1fd2f000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 131072
zone(0): 65536 pages.
zone(1): 65536 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa 
trap_init
Calibrating delay loop... 799.54 BogoMIPS
Memory: 511652k available
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
POSIX conformance testing by UNIFIX
lba version TR2.1 (0x2) found at 0xfed30000
lba_fixup_bus(0xdffef760) bus 0 sysdata 0xdfffa220
lba version TR2.1 (0x2) found at 0xfed32000
lba_fixup_bus(0xdffef7e0) bus 1 sysdata 0xdfffa260
lba version TR2.1 (0x2) found at 0xfed38000
lba_fixup_bus(0xdffef860) bus 2 sysdata 0xdfffa2a0
lba version TR2.1 (0x2) found at 0xfed3c000
lba: iosapic_register says not used
Warning : device (13, 0x782, 0x0, 0xa, 0x0) NOT claimed by lba TR2.1
SBA found Astro 2.1 at 0xfed00000
() ibase 0x1 imask 0xe0000000
() base_addr fed38000
() base_addr fed32000
() base_addr fed30000
() done
lba: lba_bios_init
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 32768)
Starting kswapd v1.7
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sym53c8xx: at PCI bus 1, device 5, function 0
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 15, function 0
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 15, function 1
sym53c8xx: 53c896 detected 
sym53c875-0: rev 0x3 on pci bus 1 device 5 function 0 irq 769
sym53c875-0: NCR clock is 40218KHz
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xf4901000
sym53c875-0: restart (scsi reset).
sym53c875-0: Downloading SCSI SCRIPTS.
sym53c896-1: rev 0x4 on pci bus 0 device 15 function 0 irq 513
sym53c896-1: NCR clock is 40218KHz
sym53c896-1: ID 7, Fast-40, Parity Checking
sym53c896-1: on-chip RAM at 0xf4002000
sym53c896-1: suspicious SCSI data while resetting the BUS.
sym53c896-1: dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,atn,msg,c/d,i/o = 0x4000100, expecting 0x100
sym53c896-1: FATAL ERROR: CHECK SCSI BUS - CABLES, TERMINATION, DEVICE POWER etc.!
sym53c896-1: giving up ...
kernel BUG at sym53c8xx.c:719!
sym53c896-1: rev 0x4 on pci bus 0 device 15 function 1 irq 513
sym53c896-1: NCR clock is 40218KHz
sym53c896-1: ID 7, Fast-40, Parity Checking
sym53c896-1: on-chip RAM at 0xf4000000
sym53c896-1: restart (scsi reset).
sym53c896-1: handling phase mismatch from SCRIPTS.
sym53c896-1: Downloading SCSI SCRIPTS.
scsi0 : sym53c8xx - version 1.6b
scsi1 : sym53c8xx - version 1.6b
scsi : 2 hosts.
  Vendor: SEAGATE   Model: ST39102LC         Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi1, channel 0, id 6, lun 0
sym53c896-1-<6,0>: tagged command queue depth set to 8
scsi : detected 1 SCSI disk total.
sym53c896-1-<6,0>: wide msgout: 1-2-3-1.
sym53c896-1-<6,0>: wide msgin: 1-2-3-1.
sym53c896-1-<6,0>: wide: wide=1 chg=0.
sym53c896-1-<6,0>: wide msgout: 1-2-3-1.
sym53c896-1-<6,0>: wide msgin: 1-2-3-1.
sym53c896-1-<6,0>: wide: wide=1 chg=0.
sym53c896-1-<6,0>: sync msgout: 1-3-1-c-1f.
sym53c896-1-<6,0>: sync msg in: 1-3-1-c-f.
sym53c896-1-<6,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=15 fak=0 chg=0.
sym53c896-1-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sda: hdwr sector= 512 bytes. Sectors= 17773524 [8678 MB] [8.7 GB]
Partition check:
 sda: unknown partition table
Serial driver version 5.01 (2000-05-29) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
: Enabling device 01:04.0 (0043 -> 0143)
ttyS00 at port 0x12200 (irq = 770) is a 16550A
Linux Tulip driver version 0.9.8 (July 13, 2000)
: Enabling device 00:0c.0 (0057 -> 0157)
eth0: Digital DS21143 Tulip rev 48 at 0x1000, 00:10:83:36:00:89, IRQ 514.
eth0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 15.8.81.247, my address is 15.8.80.77
Switching from PDC console

[ and then output comes from the add-on serial card ]
kmem_create: Forcing size word alignment - nfs_fh
Looking up port of RPC 100003/2 on 15.8.81.247
Looking up port of RPC 100005/2 on 15.8.81.247
VFS: Mounted root (nfs filesystem) readonly.
INIT: version 2.78 booting
Activating swap...
mount: directory to mount not in host:dir format
/etc/init.d/rcS: /etc/mtab: Read-only file system
Checking all file systems...
Parallelizing fsck version 1.19-WIP (7-Jul-2000)
Mounting local filesystems...
not mounted anything
Starting portmap daemon: portmapstart-stop-daemon: nothing in /proc - not mounted?


From - Thu Nov 08 21:13:35 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] c3k output
Date: Tue, 03 Oct 2000 18:39:22 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:8048

Grant Grundler wrote:
...
> The output from this system is interesting in that it has an 896 SCSI
> card installed and it seems to work...though I don't currently have any
> disks connected.

I was confused - the 875 (ultra-wide-diff) SCSI is the add-on.
The 896 is internal (on the motherboard) and one disk is installed
w/HPUX on it. I wanted to add some disks to the 875 interface which
I can install parisc-linux on.

sorry,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:13:35 2018
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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Kernel panic: taking a dump
Date: Wed, 04 Oct 2000 13:23:29 +0200
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	Hi.
I'm working since a long time with HP-UX, and I'm dealing
often with dumps. But in the same time I'm really found of linux.
And I'm looking for the feature of taking a dump when kernel panics.
Do you have already think to this (like taking a TOC for example).
The only thing I've found is the SGI stuff: 
http://reality.sgi.com/slurn_engr/
Do you know a project that start to do something, or there's
nothing out ?

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com


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From: yuqian <yuqian@huawei.com>
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Subject: [parisc-linux] pre-build HP-UX/10.20 bash's problem
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Hi.
I have a HP B2000 (9000/785) with HP-UX 10.20 and installed 
binaries/HP-UX/depot/10.20/bash-2.03-1.hpux-10.20.depot.gz,
but it not work when I want to build a new kernel:
   bash-2.03$ make dep
   scripts/mkdep init/*.c > .depend
   scripts/mkdep `find /home/yq/linux/include/asm
/home/yq/linux/include/linux /home/yq/linux/include/scsi
/home/yq/linux/include/net -name   SCCS -prune -o -follow -name \*.h ! -name
modversions.h -print` > .hdepend
   bash: scripts/mkdep: Arg list too long
   make: *** [dep-files] Error 126
  
Am I missing any thing?
Thanks for any advices.


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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] pre-build HP-UX/10.20 bash's problem
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	Hi
The answer is in your kernel. Rebuild the hpux kernel
after modifying the parameter:
ncargs_enable = 1
(I don't remember exactly the parameter name but it
must be this one). It will let you access 24kb for
arg list, without this modification the size for
arg is only 2k. This parameter is adding by PHKL_16751.

	Bye.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com


From - Thu Nov 08 21:13:36 2018
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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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Subject: Re: [parisc-linux] pre-build HP-UX/10.20 bash's problem
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	Hi
I've retrieve the kernel parameter:
large_ncargs_enabled
Put this one to 1 and it would be fine.

	Bye.
yuqian wrote:
> 
> Hi.
> I have a HP B2000 (9000/785) with HP-UX 10.20 and installed
> binaries/HP-UX/depot/10.20/bash-2.03-1.hpux-10.20.depot.gz,
> but it not work when I want to build a new kernel:
>    bash-2.03$ make dep
>    scripts/mkdep init/*.c > .depend
>    scripts/mkdep `find /home/yq/linux/include/asm
> /home/yq/linux/include/linux /home/yq/linux/include/scsi
> /home/yq/linux/include/net -name   SCCS -prune -o -follow -name \*.h ! -name
> modversions.h -print` > .hdepend
>    bash: scripts/mkdep: Arg list too long
>    make: *** [dep-files] Error 126
> 
> Am I missing any thing?
> Thanks for any advices.
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com


From - Thu Nov 08 21:13:36 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ret_from_kernel_thread incomplete
Date: Wed, 4 Oct 2000 15:54:38 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:8053

Hi,
  Some scsi drivers create a kernel thread for error handling.  If
such a driver is build as a module, then when the module is unloaded
you get something like:

10:~# rmmod lasi7xx_mod
break 0,0: pid=100 command='scsi_eh_0'
scsi_eh_0[100]: Breakpoint 0

PSW  : 0004010b  GR 1 : c022c000  GR 2 : c0104c48  GR 3 : c7834000  
GR 4 : c7f241c0  GR 5 : c7f241c0  GR 6 : c7968000  GR 7 : c7834840  
GR 8 : c7834694  GR 9 : 00000000  GR10 : c8815000  GR11 : c8815000  
GR12 : c880d000  GR13 : c7825000  GR14 : c7834548  GR15 : 00000001  
GR16 : 000927f8  GR17 : 00000001  GR18 : 20020128  GR19 : 00000001  
GR20 : 00000020  GR21 : c022c264  GR22 : 0000001a  GR23 : c7968000  
GR24 : 0000000a  GR25 : c7834758  GR26 : c78346a4  GR27 : c0218000  
GR28 : c7834000  GR29 : c783469c  GR30 : c7968740  GR31 : 00000002  
SR0  : 00000000  SR1  : 00002002  SR2  : 00000000  SR3  : 00002002  
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  

IASQ : 00000000 00000000 IAOQ : c0104c48 c0104c4c ORIG_R28 : c7f241c0
 IIR : 00000000 ISR : 00000000 IOR : c79685ac

scsi : 0 hosts.
10:~# 

c0104c48 corresponds to

        .word   0       /* FIXME */

round about line 521 of arch/parisc/kernel/entry.S

Richard


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] pre-build HP-UX/10.20 bash's problem
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To: yuqian@huawei.com (yuqian)
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In-Reply-To: <20001004125746.18672.qmail@mailserv2.iuinc.com> from "yuqian" at Oct 4, 2000 12:57:46 pm
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Xref: news.gmane.org gmane.linux.ports.parisc:8054

> Hi.
> I have a HP B2000 (9000/785) with HP-UX 10.20 and installed 
> binaries/HP-UX/depot/10.20/bash-2.03-1.hpux-10.20.depot.gz,
> but it not work when I want to build a new kernel:
>    bash-2.03$ make dep
>    scripts/mkdep init/*.c > .depend
>    scripts/mkdep `find /home/yq/linux/include/asm
> /home/yq/linux/include/linux /home/yq/linux/include/scsi
> /home/yq/linux/include/net -name   SCCS -prune -o -follow -name \*.h ! -name
> modversions.h -print` > .hdepend
>    bash: scripts/mkdep: Arg list too long
>    make: *** [dep-files] Error 126
>   
> Am I missing any thing?
> Thanks for any advices.

I think this can be fixed by changing the Makefile to use relative paths
instead of absolute paths.  This shortens the arg list enough for 
building under hpux.

Changing the kernel to support a larger arg and environment space looks
like it will waste a lot of memory for most applications and thus may
not be suited for machines with limited memory or swap space.  So, I would
try hacking the Makefile first.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel panic: taking a dump
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Bruno Vidal wrote:
...
> And I'm looking for the feature of taking a dump when kernel panics.
> Do you have already think to this (like taking a TOC for example).
> The only thing I've found is the SGI stuff: 
> http://reality.sgi.com/slurn_engr/
> Do you know a project that start to do something, or there's
> nothing out ?

See http://oss.sgi.com/projects/ and click on "LKCD"
(Linux Kernel Crash Dumps) project.

I haven't yet looked at LKCD closely yet.
I'd like to see our dump format be compatible with HPUX's just to
leverage the dump analysis tools. But right now, I'd be happy
with any kind of a dump.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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>

Wonder if this will mean GNUPro Toolkit on HP-SUX or what ?


--

 Ed June

 buggz@america.net
 Linux: An open choice for free people worldwide.




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ret_from_kernel_thread incomplete
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On Wed, Oct 04, 2000 at 03:54:38PM +0100, Richard Hirst wrote:
> Hi,
>   Some scsi drivers create a kernel thread for error handling.  If
> such a driver is build as a module, then when the module is unloaded
> you get something like:
> 
> 10:~# rmmod lasi7xx_mod
> break 0,0: pid=100 command='scsi_eh_0'

Fixed, with Willys help.

Richard


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From: yuqian <yuqian@huawei.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] bug report on Sym53C895a or config error?
Date: 5 Oct 2000 12:13:46 -0000
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Hi.
For xc not available yet, I download Image-testcpu(2000-10-02) 
as my net-boot kernel, my HP box is HP B2000 (9000/785) with 
NCR53C8x SCSI card. At first all is OK, but the follow message is 
reported during mouting root fs, is it a bug or just that kernel's 
config not match my box?
Thanks.
BTW: Is xc not available for HP-UX 10.20 yet?
(When I type 'configure --target hppa-linux' for glibc, it told me this
is not supported yet.)
And: How can I get more information (like instruction, registers value ...)
for bug report?
--------------------------------------------------------------------
sym53c895a-0-<6,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c895a-0-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 17773524 [8678 MB] [8.7 GB]
 sdb: unknown partition table
Serial driver version 5.01 (2000-05-29) with MANY_PORTS SHARE_IRQ SERIAL_PCI
endLinux Tulip driver version 0.9.8 (July 13, 2000)
pcibios_enable_device: Enabling device 00:0c.0 (0057 -> 0157)
eth0: Digital DS21143 Tulip rev 65 at 0xf00, 00:10:83:FD:CF:86, IRQ 514.
eth0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
request_irq(514, c01afb04, 0x4000000, eth0, c7f2d000)
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 10.108.21.26, my address is 10.108.21.3
kmem_create: Forcing size word alignment - nfs_fh
VFS: Mounted root (ext2 filesystem) readonly.
Warning: unable to open an initial console.
execve /sbin/init c0274008 c0274030
Kernel panic: sba_iommu.c:sba_alloc_range() I/O MMU is out of mapping resources

Kernel panic: sba_iommu.c:sba_alloc_range() I/O MMU is out of mapping resources

Kernel panic: sba_iommu.c:sba_alloc_range() I/O MMU is out of mapping resources

Kernel panic: sba_iommu.c:sba_alloc_range() I/O MMU is out of mapping resources

scsi : aborting command due to timeout : pid 0, scsi0, channel 0, id 5, lun 0 0
sym53c8xx_abort: pid=0 serial_number=54 serial_number_at_timeout=54



From - Thu Nov 08 21:13:36 2018
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From: yuqian <yuqian@huawei.com>
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Subject: Re: [parisc-linux] pre-build HP-UX/10.20 bash's problem
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The problem resolved after rebuild hpux kernel with large_ncargs_enabled=1.
Thanks all.


From - Thu Nov 08 21:13:36 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] bug report on Sym53C895a or config error?
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yuqian wrote:
> For xc not available yet, I download Image-testcpu(2000-10-02) 
> as my net-boot kernel, my HP box is HP B2000 (9000/785) with 
> NCR53C8x SCSI card.

The B2000 isn't really supported yet. The piece that's missing
support is the SuckyIO (superio from NCR) chip. SuckyIO provides
USB, IDE, Floppy, Serial port, etc.

I'm using an add-on serial card as my "console" in a C3000.
The built-in Serial port 1 provides output until linux switches
from PDC console to serial console.
Once SuckyIO support is in place, the add-on serial card won't
be needed.

...
> BTW: Is xc not available for HP-UX 10.20 yet?

No one has taken ownership of HPUX XC builds since building
on i686-linux is pretty fast. Did I hear you volunteer? :^)

You can try building an HPUX XC with the following script
after downloading the appropriate sources (either from CVS
or nightly snapshots via ftp):
    http://puffin.external.hp.com/cgi-bin/cvsview/build-tools/recipe.hpux

> (When I type 'configure --target hppa-linux' for glibc, it told me this
> is not supported yet.)

You don't need xc-glibc to build kernels - only userspace apps.
The XC resulting from recipe.hpux is only suitable for building
parisc-linux kernels.

> And: How can I get more information (like instruction, registers value ...)
> for bug report?

Add calls to show_reg() in the code path that crashes.
We should get register dumps with most dumps and I thought with
panics as well.

> Kernel panic: sba_iommu.c:sba_alloc_range() I/O MMU is out of mapping resources

The problem here is the same one Ryan Bradetich (and others) ran into.
Basically the I/O Pdir mapping resource is poorly utilized (though
not as bad as it originally was). Much of the I/O Pdir is "wasted"
due to the way it's managed.

I'll add some more debug code in this particular panic path.

BTW, can someone look at why the panic didn't halt the machine and
provide a register dump?

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] udelay() inconsistent
Date: Thu, 5 Oct 2000 17:37:34 -0700 (PDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:8061

Hi PA2.0 guru's,
udelay/mdelay code is broken for wide-mode kernel bits.
It explains why SCSI and LAN complain as well.
I've appended console output which includes my instrumentation.

The symptom is the first mdelay call is correct.  (ie mdelay(1) uses
398729 cycles on 400Mhz machine.) The next calls to the same code result
in nearly *twice* as many cycles (796488).

"ms 174  D_cr16 70238957" are in agreement.  (ie 70238957/400000 = 175)
(CPU_cycles/ (CPU_cycles/msec) -> msec)
The loop which counts "ms" uses mdelay(1). The ms and D_cr16 reported on 
previous console output were NOT in agreement and may not be here
either in every case. My point is not *every* successive call to mdelay
is wrong - perhaps it depends on code alignment.

I tried a few things:
o appended UL to 1000000 in __delay() function (include/asm-parisc/delay.h)
o changed .balign to 16 instead of 64 - only need to guarantee
  loop is in the same cacheline.

and neither changed the behavior.

I was guessing the problem might have something to do with branch
prediction upon entering the loop is different on successive attempts
but haven't studied that yet.


I still need to work on the "CACHE TEST FAILED: script execution failed."
messages. I'm pretty sure those are due to LCI instruction being (mis-)used
in sba_iommu.c.

thanks,
grant

ps. Side note: INW() (ie gsc_readw()) costs 500-600 cycles
    on my C3000 which is running 400Mhz. PIO is expensive!
    reducing PIO in the performance path is "a good thing"(tm).



Firmware Version 4.0

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache 
  ---------  --------   ---------------------  -----------------  -------------
      0      400 MHz    Active                 Functional         512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:              536870912 bytes
  Good memory required:           10223616 bytes

  Primary boot path:    FWSCSI.6.0
  Alternate boot path:  LAN.15.8.80.76.3.254
  Console path:         GRAPHICS(2)
  Keyboard path:        USB

CPU 0
WARNING:  Processor self-tests have been disabled because FASTBOOT is
          enabled.  To enable self-tests, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.
WARNING:  Memory has been initialized but not tested because FASTBOOT is
          enabled.  To test memory, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


----- Main Menu -------------------------------------------------------------

      Command                           Description
      -------                           -----------
      BOot [PRI|ALT|<path>]             Boot from specified path
      PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path
      SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices

      COnfiguration [<command>]         Access Configuration menu/commands
      INformation [<command>]           Access Information menu/commands
      SERvice [<command>]               Access Service menu/commands

      DIsplay                           Redisplay the current menu
      HElp [<menu>|<command>]           Display help for menu or command
      RESET                             Restart the system
-----
Main Menu: Enter command > bo lan
Interact with IPL (Y, N, Q)?> n

Booting... 
Network Station Address 001083-360089

System IP Address 15.8.80.77
Server IP Address 15.8.81.247

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@hpisp747 Mon Sep 25 17:09:43 PDT 2000
0/vmlinux 2651949 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa64 '
Kernel: partition 0 file /vmlinux
ELF64 executable

Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 1683960 mediaptr 0x1000
Segment 1 load 0029c000 size 404064 mediaptr 0x19d000
Segment 2 load 00300000 size 147456 mediaptr 0x200000
branching to kernel entry point 0x00100000
Set default PSW W bit to 1
PDC Console Initialized
The 64-bit Kernel has started...
Enabled FP coprocessor
If this is the LAST MESSAGE YOU SEE, you're probably using
32-bit millicode by mistake.
Free memory starts at: 0xc036d000
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa64 '
PALO initrd 0-0
model   00005bb0 00000481 00000000 00000002 77cd9463 100000f0 00000008 000000b2 000000b2
vers    00000200
cpuid   00000224
CPUID vers 17 rev 4
CPU might be a PA8500 (PCX-W)
CPU(s): 1 x PA8500 (PCX-W) at 400.000000 MHz
Searching for devices in PDC firmware... processor hpa 0xfffffffffffa0000
a newer box...
Found devices:
1. Astro BC Runway Port (12) at 0xfffffffffed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
2. Elroy PCI Bridge (13) at 0xfffffffffed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
3. Elroy PCI Bridge (13) at 0xfffffffffed32000, versions 0x782, 0x0, 0xa, 0x0, 0x0
4. Elroy PCI Bridge (13) at 0xfffffffffed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
5. Elroy PCI Bridge (13) at 0xfffffffffed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. AllegroHigh W  (0) at 0xfffffffffffa0000, versions 0x5bb, 0x0, 0x4, 0x0, 0x81
7. AllegroHigh Memory (1) at 0xfffffffffed10200, versions 0x86, 0x0, 0x9, 0x0, 0x0
That's a total of 7 devices.
Linux version 2.4.0-test6 (grundler@hpisp747) (gcc version 2.96 20000822 (experimental)) #28 Thu Oct 5 16:14:41 PDT 2000
free_bootmem(0x36d200, 0xc92e00)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 4096
zone(0): 2048 pages.
zone(1): 2048 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa64 
trap_init
Calibrating delay loop... 797.90 BogoMIPS
Memory: 12268k available
Dentry-cache hash table entries: 2048 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 512 (order: 0, 4096 bytes)
Page-cache hash table entries: 4096 (order: 3, 32768 bytes)
Inode-cache hash table entries: 1024 (order: 2, 16384 bytes)
POSIX conformance testing by UNIFIX
lba_init() called. registering driver.
lba version TR2.1 (0x2) found at 0xfffffffffed30000
lba_fixup_bus(0x00000000c0fd20e0) bus 0 sysdata 0x00000000c0ff81e0
lba version TR2.1 (0x2) found at 0xfffffffffed32000
lba_fixup_bus(0x00000000c0fd21e0) bus 1 sysdata 0x00000000c0ff83a0
lba version TR2.1 (0x2) found at 0xfffffffffed38000
lba_fixup_bus(0x00000000c0fd22e0) bus 2 sysdata 0x00000000c0ff84a0
lba version TR2.1 (0x2) found at 0xfffffffffed3c000
lba: iosapic_register says not used
Warning : device (13, 0x782, 0x0, 0xa, 0x0) NOT claimed by lba TR2.1
SBA found Astro 2.1 at 0xfffffffffed00000
lba_init_iregs() ibase 0x1 imask 0xff000000
lba_init_iregs() base_addr fffffffffed38000
lba_init_iregs() base_addr fffffffffed32000
lba_init_iregs() base_addr fffffffffed30000
lba_init_iregs() done
lba: lba_bios_init
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 256 buckets, 4Kbytes
TCP: Hash tables configured (established 512 bind 512)
Starting kswapd v1.7
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sym53c8xx: at PCI bus 1, device 5, function 0
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 15, function 0
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 15, function 1
sym53c8xx: 53c896 detected 
sym53c875-0: rev 0x3 on pci bus 1 device 5 function 0 irq 769
ncrgetfreq()  mdelay(1) = 398755  INW(nc_sist) costs cr16 672
ncrgetfreq()  ms 175  D_cr16 70643409
ncrgetfreq()  mdelay(1) = 796488  INW(nc_sist) costs cr16 571
ncrgetfreq()  ms 156  D_cr16 62972030
ncrgetfreq()  mdelay(1) = 796488  INW(nc_sist) costs cr16 575
ncrgetfreq()  ms 156  D_cr16 62972370
sym53c875-0: NCR clock is 56976KHz
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xf4901000
ncrgetfreq()  mdelay(1) = 796489  INW(nc_sist) costs cr16 572
ncrgetfreq()  ms 169  D_cr16 68221690
ncrgetfreq()  mdelay(1) = 796488  INW(nc_sist) costs cr16 573
ncrgetfreq()  ms 211  D_cr16 85174528
ncrgetfreq()  mdelay(1) = 796488  INW(nc_sist) costs cr16 573
ncrgetfreq()  ms 211  D_cr16 85174949
CACHE TEST FAILED: script execution failed.
start=00090dd8, pc=00090de0, end=00090df8
CACHE INCORRECTLY CONFIGURED.
sym53c875-0: giving up ...
kernel BUG at sym53c8xx.c:719!
sym53c896-0: rev 0x4 on pci bus 0 device 15 function 0 irq 513
ncrgetfreq()  mdelay(1) = 796483  INW(nc_sist) costs cr16 566
ncrgetfreq()  ms 174  D_cr16 70237558
ncrgetfreq()  mdelay(1) = 796488  INW(nc_sist) costs cr16 567
ncrgetfreq()  ms 156  D_cr16 62971858
ncrgetfreq()  mdelay(1) = 796488  INW(nc_sist) costs cr16 567
ncrgetfreq()  ms 156  D_cr16 62971969
sym53c896-0: NCR clock is 56976KHz
sym53c896-0: ID 7, Fast-20, Parity Checking
sym53c896-0: on-chip RAM at 0xf4002000
ncrgetfreq()  mdelay(1) = 796489  INW(nc_sist) costs cr16 574
ncrgetfreq()  ms 169  D_cr16 68220199
ncrgetfreq()  mdelay(1) = 796488  INW(nc_sist) costs cr16 569
ncrgetfreq()  ms 211  D_cr16 85173788
ncrgetfreq()  mdelay(1) = 796488  INW(nc_sist) costs cr16 568
ncrgetfreq()  ms 187  D_cr16 75487845
CACHE TEST FAILED: script execution failed.
start=000b0dd8, pc=000b0de0, end=000b0df8
CACHE INCORRECTLY CONFIGURED.
sym53c896-0: giving up ...
kernel BUG at sym53c8xx.c:719!
sym53c896-0: rev 0x4 on pci bus 0 device 15 function 1 irq 513
ncrgetfreq()  mdelay(1) = 796483  INW(nc_sist) costs cr16 566
ncrgetfreq()  ms 174  D_cr16 70238957
ncrgetfreq()  mdelay(1) = 796488  INW(nc_sist) costs cr16 568
ncrgetfreq()  ms 156  D_cr16 62971505
ncrgetfreq()  mdelay(1) = 796488  INW(nc_sist) costs cr16 569
ncrgetfreq()  ms 156  D_cr16 62971521
sym53c896-0: NCR clock is 56976KHz
sym53c896-0: ID 7, Fast-20, Parity Checking
sym53c896-0: on-chip RAM at 0xf4000000
ncrgetfreq()  mdelay(1) = 796489  INW(nc_sist) costs cr16 563
ncrgetfreq()  ms 169  D_cr16 68218650
ncrgetfreq()  mdelay(1) = 796488  INW(nc_sist) costs cr16 569
ncrgetfreq()  ms 211  D_cr16 85172765
ncrgetfreq()  mdelay(1) = 796488  INW(nc_sist) costs cr16 571
ncrgetfreq()  ms 211  D_cr16 85174385
CACHE TEST FAILED: script execution failed.
start=000d0dd8, pc=000d0de0, end=000d0df8
CACHE INCORRECTLY CONFIGURED.
sym53c896-0: giving up ...
kernel BUG at sym53c8xx.c:719!
scsi : 0 hosts.
scsi : detected total.
82596: sizeof(struct i596_rfd) = 64
Serial driver version 5.01 (2000-05-29) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
pcibios_enable_device: Enabling device 01:04.0 (0043 -> 0143)
ttyS00 at port 0x12200 (irq = 770) is a 16550A
Linux Tulip driver version 0.9.8 (July 13, 2000)
pcibios_enable_device: Enabling device 00:0c.0 (0057 -> 0157)
eth0: Digital DS21143 Tulip rev 48 at 0x1000, 00:10:83:36:00:89, IRQ 514.
eth0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
Sending BOOTP requests...


From - Thu Nov 08 21:13:36 2018
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From: Grant Grundler <grundler@cup.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:8062

Grant Grundler wrote:
...
> I still need to work on the "CACHE TEST FAILED: script execution failed."
> messages. I'm pretty sure those are due to LCI instruction being (mis-)used
> in sba_iommu.c.

I ditched the __LP64__ code in sba_iommu.c (uses asm("lci..")) in order to
use the same code as 32-bit uses. The scsi "CACHE TEST" failures went away.

So if anyone can make the LCI work...I'll think of a suitable reward...
(something better than a 710...perhaps a 4GB, 7200RPM, SE SCSI disk?
or a dual headed GSC graphics card?)


But on this run the ms/D_cr16 values do NOT agree:
...
sym53c875-0: rev 0x3 on pci bus 1 device 5 function 0 irq 769
ncrgetfreq()  mdelay(1) = 398649  INW(nc_sist) costs cr16 576
ncrgetfreq()  ms 91  D_cr16 71007434
ncrgetfreq()  mdelay(1) = 796482  INW(nc_sist) costs cr16 585
ncrgetfreq()  ms 80  D_cr16 63473212
ncrgetfreq()  mdelay(1) = 796482  INW(nc_sist) costs cr16 594
ncrgetfreq()  ms 81  D_cr16 63570830
sym53c875-0: NCR clock is 109732KHz
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xf4901000
ncrgetfreq()  mdelay(1) = 398488  INW(nc_sist) costs cr16 580
ncrgetfreq()  ms 87  D_cr16 68386143
ncrgetfreq()  mdelay(1) = 796482  INW(nc_sist) costs cr16 566
ncrgetfreq()  ms 108  D_cr16 85026462
ncrgetfreq()  mdelay(1) = 796482  INW(nc_sist) costs cr16 591
ncrgetfreq()  ms 108  D_cr16 85728994
sym53c875-0: PCI clock (82299 KHz) is out of range [22688 KHz - 45375 KHz].
sym53c875-0: giving up ...
sym53c896-0: rev 0x4 on pci bus 0 device 15 function 0 irq 513
...

(ie 85728994/400000 = 214 != 108)

later,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:13:37 2018
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From: yuqian <yuqian@huawei.com>
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Subject: Re: [parisc-linux] bug report on Sym53C895a or config error?
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At 09:40 00-10-5 -0700, you wrote:
>The B2000 isn't really supported yet. The piece that's missing
>support is the SuckyIO (superio from NCR) chip. SuckyIO provides
>USB, IDE, Floppy, Serial port, etc.
>I'm using an add-on serial card as my "console" in a C3000.
>The built-in Serial port 1 provides output until linux switches
>from PDC console to serial console.
>Once SuckyIO support is in place, the add-on serial card won't
>be needed.
:-(
But if I only use net-access, maybe it work well?

>No one has taken ownership of HPUX XC builds since building
>on i686-linux is pretty fast. Did I hear you volunteer? :^)
Oh, I am glad to be a volunteer. For my i686PC must in M$ Window
for working, the available workbench is B2000. (My manager don't
care the OS is HP-UX or Linux but only cares it work or not :-)

Another question is: why not build FDISK/PALO/E2FScp for HP-UX?
because all HP box with HP-UX's install/recover CD, so if has 
fdisk/palo/e2fscp program running on HP-UX, the work becames so 
simple that install Linux onto HP box.


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Ci sono utilizzatori italiani ???

Grazie


From - Thu Nov 08 21:13:37 2018
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Grant Grundler wrote:
...
> I ditched the __LP64__ code in sba_iommu.c (uses asm("lci..")) in order to
> use the same code as 32-bit uses. The scsi "CACHE TEST" failures went away.

Fixed. Thanks to John Marvin for pointing out ">>44" should
be ">>12" for both narrow/wide-mode kernels...

> So if anyone can make the LCI work...I'll think of a suitable reward...
> (something better than a 710...perhaps a 4GB, 7200RPM, SE SCSI disk?
> or a dual headed GSC graphics card?)

<sigh>....jsm has all the toys he wants already...we'll think of
something...

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Fri, Oct 06, 2000 at 06:45:33PM +0200, iternet wrote:
> Ci sono utilizzatori italiani ???
> 
> Grazie

I'm sorry, I don't speak Italian (I assume this is the question you asked;
Babelfish's italian to english translator is crap.).  All communication
on these lists is in English.

-- 
Revolutions do not require corporate support.


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> Wonder if this will mean GNUPro Toolkit on HP-UX or what ?

"Hewlett-Packard Company and Cygnus Solutions today announced that they
will deliver Cygnus' market-leading GNUPro Toolkit for HP-supported
platforms under HP's Foundation Program for software development partners.
Open-source developers now will have access to a common set of
commercial-quality tools that facilitate development of applications
deployed on Linux, HP-UX and Windows NT systems."

(Source: http://www.cygnus.com/news/hp.html, April 5th 1999)

Chris


From - Thu Nov 08 21:13:37 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] debian-hppa-newlibc archive moving to debian-hppa
Date: 07 Oct 2000 22:54:49 -0400
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Hi,

Since the change in symbol versions (as well as the introduction of
linuxthreads support) broke all old binaries, I've been rebuilding the
Debian base system over the last few days with the new glibc.  These
packages have been building up in
ftp://puffin.external.hp.com:/pub/debian-hppa-newlibc/ though I
haven't really announced the existence of this archive.

At this point I have replaced my entire system with new binaries, and
the newlibc archive is in fact more complete and up-to-date than the
original one, so I would like to remove or archive the old one and
switch to using this one exclusively.  So, I've moved the old one to
/pub/debian-hppa-oldlibc, and the new one to /pub/debian-hppa.

I believe Matt Taggart is putting together a new base system tarball
using these new packages (we now have almost all of the relevant parts
of the Debian 'base' section built).

I've been uploading NMU-versioned source packages (just the .diff.gz
and .dsc) of any packages that have required significant source
changes to /pub/debian-hppa-source.  This does not include packages
that need our versions of config.{guess,sub}, however.  I haven't had
time to submit the changes to the maintainers yet but I'll try to get
it done this coming week.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


From - Thu Nov 08 21:13:37 2018
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] file locking problems?
Date: Sun, 8 Oct 2000 20:00:48 -0700
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--EVF5PPMfhYS0aIcm
Content-Type: text/plain; charset=us-ascii

Hi all,

I'm seeing some weird behavior with file locking on my hppa box:

update-passwd (a Debian package) makes a call to lckpwdf. That fails
with an "Invalid argument" message. It looks like lckpwdf internally uses
fcntl() locking, so I tried that and it too fails with an "Invalid
argument" message.  This happens both on nfs and local ext2 fs.
Similar tests with flock() seems to work ok.

Any ideas? This is using dhd's latest glibc build. My testing program is
attached. I've verified that it works on ext2 fs on i386 and SPARC. Over
nfs it does give an error message (No locks available).

The test program I used is attached.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^

--EVF5PPMfhYS0aIcm
Content-Type: text/x-csrc
Content-Disposition: attachment; filename="locktest.c"

#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>

int main(int argc, char **argv)
{
        struct flock l;
        int fd;

        if ((fd = open("test.lck", O_CREAT|O_RDWR)) < 0)
        {
                perror("open");
                return -1;
        }
        memset(&l, 0, sizeof(l));
        l.l_type = F_RDLCK;
        if (fcntl(fd, F_SETLK, &l) < 0)
        {
                perror("fcntl");
                return -1;
        }
        close(fd);
        return 0;
}

--EVF5PPMfhYS0aIcm--


From - Thu Nov 08 21:13:37 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] file locking problems?
Date: 08 Oct 2000 23:52:42 -0400
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Randolph Chung <randolph@tausq.org> writes:

> update-passwd (a Debian package) makes a call to lckpwdf. That fails
> with an "Invalid argument" message. It looks like lckpwdf internally uses
> fcntl() locking, so I tried that and it too fails with an "Invalid
> argument" message.  This happens both on nfs and local ext2 fs.
> Similar tests with flock() seems to work ok.

Lots of things report this actually - if you look in your log files
you'll see lots of "utmp file is locked/read" - also in bootup
messages there will be a "can't lock <whatever>".

I have a feeling this might just be generally broken in the revision
of the kernel we're using, though it could be a problem with LFS in
our glibc if it is trying to use fcntl64().

I suspect that our LFS stuff is generally broken (lseek64() is, at
least) and plan to investigate further on Tuesday.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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> update-passwd (a Debian package) makes a call to lckpwdf. That fails
> with an "Invalid argument" message. It looks like lckpwdf internally uses
> fcntl() locking, so I tried that and it too fails with an "Invalid
> argument" message.  This happens both on nfs and local ext2 fs.
> Similar tests with flock() seems to work ok.

as it turns out, it looks like there's a glibc<->kernel mismatch. 
the kernel defines F_RDLCK as 1, and glibc has it defined as 0. dhd is
aware of this and say he'll look into fixing this later this week.

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.3.99 branch is dead
Date: 09 Oct 2000 12:55:34 -0400
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Hi,

Just thought I should confirm that the 2.3.99 branch in our kernel CVS
I made a while back is dead.  The stability problems in 2.4 are mostly
fixed and it runs faster and on more machines, so there is no reason
to use 2.3.99 anymore (well, except for the unusual network latency
issues I'm experiencing on the A180 (but not on the C360))

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Fuzzy math (df output)
Date: Mon, 9 Oct 2000 16:55:34 -0700 (PDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:8073

Hi all,
I booted the latest kernel and mounted a local hard disk...ran
df to check space usage and got:

gggA180:/mnt# df
Filesystem           1k-blocks      Used Available Use% Mounted on
15.8.81.247:/tftpboot/hppa
                       7558400   5276568   1897880   0% /
/dev/sda3              1513684    223852   1212940   0% /mnt
gggA180:/mnt# 

Seems like the Use% numbers came from a presidential debate. :^)
If someone is looking for something to do...

thanks,
grant


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From: Bdale Garbee <bdale@gag.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ntpd fails on mlockall()
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I built a package of ntp, and it installed ok, but when ntpd goes to launch,
I get the following in daemon.log:

Oct  9 20:51:27 j5k ntpd[19416]: ntpd 4.0.99g Mon Oct  9 20:44:40 MDT 2000 (1)
Oct  9 20:51:27 j5k ntpd[19416]: mlockall(): Cannot allocate memory

And in dmesg output, I see:

do_page_fault() pid=19416 command='ntpd'

PSW  : 0004000a  GR 1 : 40053cf0  GR 2 : 40052777  GR 3 : 40054c44  
GR 4 : 400544f0  GR 5 : 4005ec4c  GR 6 : 4005ec4c  GR 7 : 00000000  
GR 8 : ffffffff  GR 9 : 00059cf0  GR10 : 2001fd24  GR11 : 0005c140  
GR12 : 0003a800  GR13 : 0003a800  GR14 : 0005c140  GR15 : 0005c140  
GR16 : 0005c140  GR17 : 00000001  GR18 : 0005c140  GR19 : 40197148  
GR20 : 00000000  GR21 : 00000000  GR22 : 00001fe9  GR23 : 00000004  
GR24 : 000001b0  GR25 : 0005d020  GR26 : 4005ec88  GR27 : 00045140  
GR28 : 00000000  GR29 : 0005f1b8  GR30 : 200203c0  GR31 : 40083f13  
SR0  : 00000000  SR1  : 0000200b  SR2  : 00000000  SR3  : 0000200b  
SR4  : 0000200b  SR5  : 0000200b  SR6  : 0000200b  SR7  : 0000200b  

IASQ : 0000200b 0000200b IAOQ : 4005277f 40052783 ORIG_R28 : 00000000
 IIR : 0eb41288 ISR : 0000200b IOR : 00000004

sending SIGSEGV


Anyone know what's going on?

Bdale


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Subject: [parisc-linux] New nfsroots and xc
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I have created 2 new palinux nfsroots. The first is just the Debian base 
packages that we have(~15MB).

ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/base-20001009.tar.gz

The second is the above plus everything else we have(~38MB).

ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/nfsroot-20001009.tar.g
z

I have also put a new i386-linux -> hppa-linux cross compiler tarball at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20001009.tar.gz


-- 
Matt Taggart
taggart@fc.hp.com



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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: [parisc-linux] Fuzzy math (df output)
Date: 09 Oct 2000 23:56:54 -0400
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Grant Grundler <grundler@cup.hp.com> writes:

> Seems like the Use% numbers came from a presidential debate. :^)
> If someone is looking for something to do...

Your df is probably built with the old broken compiler that didn't
handle floating point variadic arguments correctly.  I suggest
upgrading it (it's in fileutils).

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Unable to compil gcc2.96 on L2000/11.00/64 bits
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	Hi
I'm unable to compile gcc2.96 cross compiler with latest bits.
(binutils is okay, it compile right)
I've configure it with:
../gcc/configure --target=hppa1.1-linux --prefix=$DEST --disable-nls --without-libc
(with DEST=/opt/linux_hppa)
-> it looks okay:
checking host system type... hppa2.0w-hp-hpux11.00
.
.
.
creating ./config.status
creating Makefile

# echo $?
0

So I start to compil, and after a few momment:
make[2]: Entering directory `/opt/linux_hppa/src/gcc_build/hppa1.1-linux/libiberty'
make[2]: *** No targets specified and no makefile found.  Stop.
make[2]: Leaving directory `/opt/linux_hppa/src/gcc_build/hppa1.1-linux/libiberty'
make[1]: *** [../libiberty/libiberty.a] Error 2
make[1]: Leaving directory `/opt/linux_hppa/src/gcc_build/hppa1.1-linux/libstdc++'
make: *** [all-target-libstdc++] Error 2                                  

-> no makefile for hppa1.1-linux/libiberty.
Do you have any idea to correct that ?

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com


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From: A Joseph Koshy <koshy@postbox.india.hp.com>
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Subject: [parisc-linux] CVSup in addition to AnonCVS
Date: Tue, 06 Apr 1999 10:43:36 +0530
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Could we use CVSup to distribute the projects CVS repository?  

	- It runs a lot faster than AnonCVS.
	- As it mirrors the repository locally, subsequent operations 
	  (cvs log, cvs diff) don't need to access the 'net.
	- You can have 'local' branches in your copy of the repository.
	- It works perfectly with the existing CVS infrastructure.

URL: http://www.polstra.com/projects/freeware/CVSup/

See also:	http://www.kde.org/cvsup.html
		http://www.freebsd.org/handbook/cvsup.html

Regards,
Koshy
<koshy@india.hp.com>			My Personal Opinions Only.


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Unable to compil gcc2.96 on L2000/11.00/64 bits
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On Tue, 10 Oct 2000, Bruno Vidal wrote:

> -> no makefile for hppa1.1-linux/libiberty.
> Do you have any idea to correct that ?

libiberty/config.log should tell you what went wrong.  It's likely that
you need to install binutils (perhaps glibc too) and set up paths.

>From memory, the steps I followed were:
  build & install binutils
  build & install gcc using "make LANGUAGES=c; make LANGUAGES=c install"
  build & install glibc
  rebuild gcc

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] New nfsroots and xc
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On Mon, Oct 09, 2000 at 09:43:45PM -0600, Matt Taggart wrote:
> I have created 2 new palinux nfsroots. The first is just the Debian base 
> packages that we have(~15MB).
> 
> ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/base-20001009.tar.gz
> 
> The second is the above plus everything else we have(~38MB).
> 
> ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/nfsroot-20001009.tar.g
> z

Slightly broken:

10:~# make mlock 
cc     mlock.c   -o mlock
/usr/bin/ld: cannot open crt1.o: No such file or directory
collect2: ld returned 1 exit status
make: *** [mlock] Error 1


Dirty fix was to copy /usr/lib/crt[1in].o current directory.


10:~# gcc -v -Wall -L/usr/lib -o mlock mlock.c 
Reading specs from /usr/lib/gcc-lib/hppa-linux/2.96/specs
gcc version 2.96 20000925 (experimental)
 /usr/lib/gcc-lib/hppa-linux/2.96/cpp0 -lang-c -v -D__GNUC__=2 -D__GNUC_MINOR__=96 -D__GNUC_PATCHLEVEL__=0 -D__ELF__ -Dunix -D__hppa__ -Dlinux -D__ELF__ -D__unix__ -D__hppa__ -D__linux__ -D__unix -D__linux -Asystem(unix) -Asystem(posix) -Acpu(hppa) -Amachine(hppa) -Amachine(bigendian) -D__STDC _HOSTED__=1 -Wall -D__hp9000s700 -D_PA_RISC1_1 mlock.c /tmp/ccTCLP7c.i
GNU CPP version 2.96 20000925 (experimental) (cpplib)
 (hppa)
ignoring duplicate directory "/usr/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/include
 /usr/lib/gcc-lib/hppa-linux/2.96/include
 /usr/hppa-linux/include
End of search list.
 /usr/lib/gcc-lib/hppa-linux/2.96/cc1 /tmp/ccTCLP7c.i -quiet -dumpbase mlock.c -Wall -version -o /tmp/ccDv8UPn.s
GNU C version 2.96 20000925 (experimental) (hppa-linux) compiled by GNU C version 2.96 20000925 (experimental).
mlock.c:5: warning: return type defaults to `int'
 as -V -o /tmp/ccxVNaG8.o /tmp/ccDv8UPn.s
GNU assembler version 2.10.91 (hppa-linux) using BFD version 2.10.91
 /usr/lib/gcc-lib/hppa-linux/2.96/collect2 -dynamic-linker /lib/ld.so.1 -o mlock crt1.o crti.o /usr/lib/gcc-lib/hppa-linux/2.96/crtbegin.o -L/usr/lib -L/usr/lib/gcc-lib/hppa-linux/2.96 /tmp/ccxVNaG8.o -lgcc -lc -lgcc /usr/lib/gcc-lib/hppa-linux/2.96/crtend.o crtn.o
/usr/bin/ld: cannot open crt1.o: No such file or directory
collect2: ld returned 1 exit status
10:~# ls -l /usr/lib/crt1.o
-rw-r--r--    1 root     root         1228 Oct  6 12:05 /usr/lib/crt1.o

Richard


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Subject: Re: [parisc-linux] ntpd fails on mlockall()
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On Mon, Oct 09, 2000 at 08:57:00PM -0600, Bdale Garbee wrote:
> I built a package of ntp, and it installed ok, but when ntpd goes to launch,
> I get the following in daemon.log:
> 
> Oct  9 20:51:27 j5k ntpd[19416]: ntpd 4.0.99g Mon Oct  9 20:44:40 MDT 2000 (1)
> Oct  9 20:51:27 j5k ntpd[19416]: mlockall(): Cannot allocate memory

A simple prog that just calls mlockall() fails as well.  It is because
we currently allocate a massive stack (256MB?) for every process, and
mlockall() tries to actually claim the memory for that stack.  I tried
allocating just a 1MB stack in fs/exec.c, and my simple mlockall()
prog then worked.

Richard


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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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Subject: [parisc-linux] Unable to compil linux kernel
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	Hi
I succeded to recompile all tools needed for compiling linux kernel.
(the problem was only that I was using the wrong target type).
But I've have a strange problem while compiling (I perhaps made a mistake somewhere):
#pwd
/opt/linux_hppa/src/linux/drivers/char

#type gcc
gcc is hashed (/opt/linux_hppa/hppa-linux/bin/gcc)
 
#file /opt/linux_hppa/hppa-linux/bin/gcc
/opt/linux_hppa/hppa-linux/bin/gcc:     PA-RISC1.1 shared executable dynamically linked -not stripped 

#gcc --version
2.96

while the "make palo":
#gcc -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -o conmakehash conmakehash.c
/opt/linux_hppa/lib/gcc-lib/hppa-linux/2.96/../../../../hppa-linux/bin/ld: cannot find -lc
collect2: ld returned 1 exit status
-> that the problem, where this "-lc" comes from ???

#/opt/linux_hppa/lib/gcc-lib/hppa-linux/2.96/../../../../hppa-linux/bin/ld --version
GNU ld 2.10.91
Copyright 2000 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License.  This program has absolutely no warranty.
  Supported emulations:
   hppalinux

	Thanks 


-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Unable to compil gcc2.96 on L2000/11.00/64 bits
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To: Alan Modra <alan@linuxcare.com.au>
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Alan Modra wrote:
...
> From memory, the steps I followed were:
>   build & install binutils
>   build & install gcc using "make LANGUAGES=c; make LANGUAGES=c install"
>   build & install glibc
>   rebuild gcc

Alan,
Could you update the relevant scripts in CVS build-tools repository?
(They may not need any changes and Bruno just needs to use those)

Last year I pushed for "recipes" and those got stale pretty quickly
because the folks on the bleeding edge weren't using them. Like Bruno,
I had a hard time reproducing the success others claimed they had.
(I still chuckle over puffin's phrase: "I don't believe you")
It shouldn't be that hard to build stuff from the CVS repositories.

I've given up on the recipe's and moved to scripts instead.
Matt Taggart has contributed the build-tools/palinux-autobuilder
and recipe.linux/recipe.hpux are mine. The README file should
explain what each does.

apologies for harping on this again,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:13:38 2018
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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] STI broken in CVS head?
Date: 10 Oct 2000 12:00:40 -0400
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Hi,

Trying to boot my 712/80 with STI console, I get the following error
during console init:

searching for word mode STI ROMs
STI ROM from PDC at f008000
found potential STI ROM at f0080000
STI word mode ROM at f0080000
STI word mode ROM type 3
 supports 13 monitors
 conforms to STI ROM spec revision 8.04
 graphics id 2b4ded6d40a00499
f8000000 g
break 0,0: pid=0 command='swapper'
swapper[0]: Breakpoint 0

PSW  : 00000008  GR 1 : ffffffff  GR 2 : 00100a44  GR 3 : ffffffff
GR 4 : 0028a082  GR 5 : 00000000  GR 6 : f8000000  GR 7 : c02aa800
GR 8 : 00505070  GR 9 : 00000008  GR10 : c02794a0  GR11 : bc0fd569
GR12 : 000043ff  GR13 : 000089a0  GR14 : 00004800  GR16 : 43f02aa9
GR16 : 00004000  GR17 : 00000000  GR18 : ffffffff  GR19 : 0000000a
GR20 : 00000000  GR21 : c028dd4b  GR22 : 01fe6420  GR23 : 01fe6420
GR24 : 01fdc6e0  GR26 : 01fdc6d0  GR26 : 00270d60  GR27 : c024c000
GR28 : 00000010  GR29 : 00000008  GR30 : 000002f0  GR31 : 00000198
SR0  : 00000004  SR1  : c028dd4c  SR2  : 00000001  SR3  : 00000000
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000

IASQ : 00000000 00000000 IAOQ : 01f808080 01f8080c
 IIR : 00000000 ISR: 00000000 IOR : 01f80810

Kernel panic: Attempted to kill the idle task!
In idle task - not syncing


As you can see the IAOQ (and %sr1 as well - possibly another $@#!$#%
race condition in entry.S?) are totally bogus.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Subject: Re: [parisc-linux] New nfsroots and xc
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> 10:~# make mlock 
> cc     mlock.c   -o mlock
> /usr/bin/ld: cannot open crt1.o: No such file or directory
> collect2: ld returned 1 exit status
> make: *** [mlock] Error 1
> 
> 

According to Bdale, the fix is:

ln -s /usr/lib /usr/hppa-linux/lib

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ntpd fails on mlockall()
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On Tue, Oct 10, 2000 at 12:08:41PM +0100, Richard Hirst wrote:
> On Mon, Oct 09, 2000 at 08:57:00PM -0600, Bdale Garbee wrote:
> > I built a package of ntp, and it installed ok, but when ntpd goes to launch,
> > I get the following in daemon.log:
> > 
> > Oct  9 20:51:27 j5k ntpd[19416]: ntpd 4.0.99g Mon Oct  9 20:44:40 MDT 2000 (1)
> > Oct  9 20:51:27 j5k ntpd[19416]: mlockall(): Cannot allocate memory
> 
> A simple prog that just calls mlockall() fails as well.  It is because
> we currently allocate a massive stack (256MB?) for every process, and
> mlockall() tries to actually claim the memory for that stack.  I tried
> allocating just a 1MB stack in fs/exec.c, and my simple mlockall()
> prog then worked.

I've changed the kernel to grow the user stack dynamically, so
hopefully your ntpd will work now.

Richard


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] Native built kernel boots!
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Hi,
  Thought people might be interested to hear that I just booted my A180
using a kernel I'd compiled on that A180 under palinux.
Forgot to time how long the kernel built took...

Richard


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 712 crash
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Xref: news.gmane.org gmane.linux.ports.parisc:8088

Wow cool!
I'm pretty impressed with how far the parisc-linux port is now...
It's almost useful! :^)

Well, things that seemed to work: DNS, ifconfig, LASI lan driver,
   ping, rcp, df, top, dpkg, etc..

After rcp'ing the ncurses package over and installing it,
the system crashed when I tried "w" command.

Note that /dev/sdb is sick (doesn't spin up) and needs
to be replaced or jumpers changed...console output with
the error scrolled off. I'm pretty sure it was sense data
but aren't so sure I recall it correctly: ASC/ASCQ d8/80, key 03.


But my 712 (using STI Console) crashed and I'm typing in *some*
of the crash data by hand:

Kernel Fault: Code=15  regs=c4f6c6c0 (Addr=c9c504b8)

PSW  : 0004320a  GR 1 : ffffffd0  GR 2 : c01390cc  GR 3 : c2fc8f60
...
GR24 : c4fffae8  GR25 : 00000060  GR26 : 006c884a  GR27 : c025e000
GR28 : 0000000b  GR29 : 01b22128  GR30 : c4f6c900  GR31 : c012e224

SR1 and SR3 are 00002008

IASQ : 00000000 00000000 IAOQ : c012e228 c012e22c ORIG_R28 : 00002008
 IIR : 6a740030 ISR : 00000000 IOR : c9c0504b8



Ok now for translations:
0xc01390cc try_to_free_buffers+12c
0xc025e000 data_start+0
0xc012e228 kmem_cache_free+44

sorry...but I'm not going to enter the stack dump by hand...

cheers,
grant


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From: ALAN_C_MEYER@HP-FtCollins-om4.om.hp.com
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP & Cygnus partnership
Date: Tue, 6 Apr 1999 05:40:42 -0600
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 Even before this announcement, you could get GNUPro Toolkit on HP-UX, with 
 the most recent support being for 11.0, 32bit only.  The current 
 announcement reflects the fact that GNUPro will be enhanced to support 
 code generation for PA2.0 processors and to support 64 bit HP-UX in 
 general.  On the non-technical side, you can expect to see some marketing 
 and packaging activity around GNUPro on HP-supported platforms.  And, as 
 before, HP & Cygnus continue to collaborate around the gdb/wdb work.
 
 Alan
 


______________________________ Reply Separator _________________________________
Subject: Re: [parisc-linux] HP & Cygnus partnership
Author:  Non-HP-cjbeard (cjbeard@thepuffingroup.com) at HP-ColSprings,mimegw4
Date:    4/5/99 5:43 PM


     
> Wonder if this will mean GNUPro Toolkit on HP-UX or what ?
     
"Hewlett-Packard Company and Cygnus Solutions today announced that they 
will deliver Cygnus' market-leading GNUPro Toolkit for HP-supported 
platforms under HP's Foundation Program for software development partners. 
Open-source developers now will have access to a common set of 
commercial-quality tools that facilitate development of applications 
deployed on Linux, HP-UX and Windows NT systems."
     
(Source: http://www.cygnus.com/news/hp.html, April 5th 1999)
     
Chris
     
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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Unable to compil linux kernel
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On Tue, 10 Oct 2000, Bruno Vidal wrote:

> -> that the problem, where this "-lc" comes from ???

That's libc.a or libc.so  You need to compile and install glibc.

Incidentally, it's often useful to add -v to a failing gcc command line to
see exactly how gcc is calling the assembler/linker.  For link problems,
-Wl,-t also can help.

-- 
Linuxcare.  Support for the Revolution.


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] __hp9000s700 predefined
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Xref: news.gmane.org gmane.linux.ports.parisc:8091

Hi all,
I was looking at how to properly ifdef code for parisc-linunx
and it seems that "#ifdef __hppa__" is "the right way" to do this.

Currently two files use ifdef CONFIG_PARISC: genrtc.c and hilkdb.c
Randolf (tausq) is fixing genrtc.c.
Any volunteers (ie 715/50 or 715/33 owners) for hilkdb.c?

But Randolf also noted that gcc predefines a few other things:
	-D__hp9000s700 -D_PA_RISC1_1

John Marvin suggested we remove the __hp9000s700 from the pa-linux
config files since it's HPUX crud. I think he's right since parisc-linux
kernels are intended to run on both 700's and 800's.
parisc-linux configs functionality in/out based on CONFIG_XXX flags
or run-time checks (ie register_driver()).
Can we remove the "-D__hp9000s700" from gcc/gcc/config/pa/pa-linux.h?

Similarly, gcc/gcc/config/pa/pa-linux64.h has "-D__hp9000s800"
which could/should be removed at the same time.

Any other thoughts on this?

thanks,
grant


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ntpd fails on mlockall()
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On Tue, Oct 10, 2000 at 11:06:11PM -0600, Bdale Garbee wrote:
> rhirst@linuxcare.com (Richard Hirst) writes:
> 
> > I've changed the kernel to grow the user stack dynamically, so
> > hopefully your ntpd will work now.
> 
> Still dies, but without the mlockall() error, so that seems fixed.  The dmesg
> output when it fails is

Thought I'd better investigate in case it was my stack changes...
(configured and built ntp natively, btw).
Turns out this crash is caused by the call to timer_create() in
ntpd/ntp_timer.c.

timer_create() is in librt.a - anyone know whether we expect this to
work or not atm?

Anyway, if you undefine HAVE_TIMER_CREATE and HAVE_TIMER_SETTIME
in config.h and rebuild it, it does better.  I now get:

11 Oct 05:21:13 ntpd[3141]: logging to file /tmp/ntpd.log
11 Oct 05:21:13 ntpd[3141]: ntpd 4.0.99g Wed Oct 11 05:17:40 MDT 2000 (5)
11 Oct 05:21:13 ntpd[3141]: precision = 10000 usec
11 Oct 05:21:13 ntpd[3141]: kern_enable is 1
11 Oct 05:21:13 ntpd[3141]: init_socket_sig: ioctl(I_SETSIG, S_INPUT) failed: Bad address

So, I undefined USE_UDP_SIGPOLL, and now ntpd runs and talks to remote
ntp servers.  Don't know whether it is doing what it should though...

Richard


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Richard Hirst <rhirst@linuxcare.com> writes:

> timer_create() is in librt.a - anyone know whether we expect this to
> work or not atm?

librt.so you mean, and it may not actually work, because it pulls in
libpthread.so.  I did enough fixing of linuxthreads such that merely
linking with -lpthread doesn't break your program, but I expect there
might be other problems, and actually using threads almost certainly
will not work.  (we're still missing a few #defines in pt-machine.h,
which I'll put in today, maybe, but there are probably VM issues in
the kernel as well, and I don't know if clone(2) actually works).

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] __hp9000s700 predefined
Date: 11 Oct 2000 10:44:31 -0400
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Grant Grundler <grundler@cup.hp.com> writes:

> John Marvin suggested we remove the __hp9000s700 from the pa-linux
> config files since it's HPUX crud. I think he's right since parisc-linux
> kernels are intended to run on both 700's and 800's.
> parisc-linux configs functionality in/out based on CONFIG_XXX flags
> or run-time checks (ie register_driver()).
> Can we remove the "-D__hp9000s700" from gcc/gcc/config/pa/pa-linux.h?

Yes

> Similarly, gcc/gcc/config/pa/pa-linux64.h has "-D__hp9000s800"
> which could/should be removed at the same time.

Yes

It's true, those defines are only there for compatibility with broken
HP/UX source.  I left them in because I figured it wouldn't break
anything.  If they really offend people I can certainly remove them :)

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] __hp9000s700 predefined
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> But Randolf also noted that gcc predefines a few other things:
> 	-D__hp9000s700 -D_PA_RISC1_1
> 
> John Marvin suggested we remove the __hp9000s700 from the pa-linux
> config files since it's HPUX crud. I think he's right since parisc-linux
> kernels are intended to run on both 700's and 800's.
> parisc-linux configs functionality in/out based on CONFIG_XXX flags
> or run-time checks (ie register_driver()).
> Can we remove the "-D__hp9000s700" from gcc/gcc/config/pa/pa-linux.h?
> 
> Similarly, gcc/gcc/config/pa/pa-linux64.h has "-D__hp9000s800"
> which could/should be removed at the same time.

These are needed for user apps as well as the kernel.  They allow cpp
to process files based on the machine features of the version of gcc used
for the compilation (e.g.: PA 1.0, 1.1, or 2.0; 32 or 64 bit; s700 or s800).
Thus, these or a similar set of defines are needed under parisc-linux.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Wed, 11 Oct 2000, Markus Werle wrote:

> cc +DA2.0w +DS2.0w -Ae -o size size.o bucomm.o version.o filemode.o
> ../bfd/.libs/libbfd.a ../libiberty/libiberty.a ./../intl/libintl.a -lm
> ld: Unsatisfied symbol "alloca" in file
> ../bfd/.libs/libbfd.a[elf64-hppa.o]
> 1 errors.

This should fix it

--- bfd/elf64-hppa.c~	Tue Sep  5 11:54:49 2000
+++ bfd/elf64-hppa.c	Thu Oct 12 01:19:35 2000
@@ -17,6 +17,7 @@
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
+#include "alloca-conf.h"
 #include "bfd.h"
 #include "sysdep.h"
 #include "libbfd.h"


I'll commit this to CVS tomorrow morning - this morning I mean, after I've
had a sleep.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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"John David Anglin" wrote:
...
> These are needed for user apps as well as the kernel.  They allow cpp
> to process files based on the machine features of the version of gcc used
> for the compilation (e.g.: PA 1.0, 1.1, or 2.0; 32 or 64 bit; s700 or s800).

o PA 1.1 vs PA 2.0 can be handled with -D_PA_RISC1_1.
  Since neither HPUX 10.X, HPUX 11.X, nor parisc-linux supports PA1.0,
  I don't know or care that is going to work (apologies to the
  folks who made spectrum happen).

o 32 vs 64-bit can be handled with __LP64__.

o s700 vs s800 is an artifact of HP's workstation vs server divisions.
  ie an artifact of how HP was organized. With HPUX 11, HP no longer ships
  different binaries for workstations vs servers (to many customers
  relief since we now only have one patch stream per release).

o As I noted before, linux enable/disables specific functionality and
  HW support with either CONFIG_XXX or runtime checks.

John, is there something specific you are concerned about which
can't be handled by the above predefined symbols?

BTW, HPUX vs parisc-linux vs osf vs hiux differences can be handled
with hpux, linux, mach, hiux predefines...ugh....looking at
gcc/gcc/config/pa/pa*h makes me want to puke...


> Thus, these or a similar set of defines are needed under parisc-linux.

I don't believe this yet...having worked on HPUX 10.20 and HPUX 11
extensively, I'm going to be hard to convince too...

thanks,
grant

> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Xref: news.gmane.org gmane.linux.ports.parisc:8098

> "John David Anglin" wrote:
> ...
> > These are needed for user apps as well as the kernel.  They allow cpp
> > to process files based on the machine features of the version of gcc used
> > for the compilation (e.g.: PA 1.0, 1.1, or 2.0; 32 or 64 bit; s700 or s800).
> 
> o PA 1.1 vs PA 2.0 can be handled with -D_PA_RISC1_1.
>   Since neither HPUX 10.X, HPUX 11.X, nor parisc-linux supports PA1.0,
>   I don't know or care that is going to work (apologies to the
>   folks who made spectrum happen).

You probably know better than I but I think PA1.0 is the "portable" default
for most libraries under 10.X.  I believe that gcc also defines _PA_RISC2_0
for PA2.0.  This is not used under hpux 10.X.  However, it is used under 11
in setjmp.h and varargs.h.  I also see _PA_RISC1_0 there, so gcc probably
should be defining it as well (at least for hpux).

Although parisc-linux may not run on PA1.0 hardware, you never know what some
software maniac will do in the future.  The gcc infrastructure to generate
PA1.0 code is there and works.  Thus, I don't buy the argument that this
capability shouldn't be supported under linux simply because you don't
want the symbol defines to support it in the namespace.  Kernel support
and building the appropriate libs are more of an issue.  Take a look
at the IDs in unistd.h and magic.h.  There are IDs for 1.0, 1.1, 1.2 and
2.0.

> o s700 vs s800 is an artifact of HP's workstation vs server divisions.
>   ie an artifact of how HP was organized. With HPUX 11, HP no longer ships
>   different binaries for workstations vs servers (to many customers
>   relief since we now only have one patch stream per release).
> 
> o As I noted before, linux enable/disables specific functionality and
>   HW support with either CONFIG_XXX or runtime checks.
> 
> John, is there something specific you are concerned about which
> can't be handled by the above predefined symbols?

I was just being cautious about __hp9000s[7-8]00.  I looked at some of
the uses in the hpux 10.X headers, and for usage in gcc and binutils.  I
don't see any obvious reason why these two symbols need to be defined
for linux.

I believe that the compiler only should predefine symbols that are necessary
for the control of code generation.  Neither CONFIG_XXX or runtime checks
will help you for this since gcc only has a limited capability to change
its code generation at runtime.  There appears to be some model dependence
in the floating point implementations from one pa machine to another.  If
this can't all be hidden in the kernel, some further specification of the
hardware might be needed for floating point.  For example, __i686__ is
defined on the Pentium Pro and is used in bits/mathinline.h.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > John, is there something specific you are concerned about which
> > can't be handled by the above predefined symbols?
> 
> I was just being cautious about __hp9000s[7-8]00.  I looked at some of
> the uses in the hpux 10.X headers, and for usage in gcc and binutils.  I
> don't see any obvious reason why these two symbols need to be defined
> for linux.
> 
> I believe that the compiler only should predefine symbols that are necessary
> for the control of code generation.  Neither CONFIG_XXX or runtime checks
> will help you for this since gcc only has a limited capability to change
> its code generation at runtime.  There appears to be some model dependence
> in the floating point implementations from one pa machine to another.  If
> this can't all be hidden in the kernel, some further specification of the
> hardware might be needed for floating point.  For example, __i686__ is
> defined on the Pentium Pro and is used in bits/mathinline.h.

There is a nice table listing model numbers, architecture and processor
type in /opt/langtools/lib/sched.models under hpux 11.  It still appears
possible to compile and link a PA1.0 app under hpux 11.  I am guessing
but it looks like there are 5 different PA1.1 float implementations (a-e).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Kumar <kumar@ix.netcom.com>
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Subject: [parisc-linux] Qn on Linux/PA-RISC future Console driver
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Hi,
	Has anyone done some work on Linux/PA-RISC Console driver.
	Are we planning to use PDC for console or is it possible
	to directly access Console device. 

					-kumar

	




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Summary ----------
Ok. It looks like we are in agreement.
I'm going to remove __hp9000s[78]00 from pa-linux*.h files.

grant

Full Reply -------------

"John David Anglin" wrote:
> You probably know better than I but I think PA1.0 is the "portable" default
> for most libraries under 10.X.

It's definitely not under 10.20. PA1.1 is the minimum.
I think PA1.0/CIO support was completely dropped after
10.01 or 10.10 releases.

> I believe that gcc also defines _PA_RISC2_0
> for PA2.0.  This is not used under hpux 10.X.  However, it is used under 11
> in setjmp.h and varargs.h.  I also see _PA_RISC1_0 there, so gcc probably
> should be defining it as well (at least for hpux).

Agreed. 10.X doesn't use _PA_RISC2_0 since it has to run on PA1.1 HW
and only supports narrow mode on PA2.0 platforms. Any differences
in the processor architectures are handled with runtime checks.
(like boot time patching of inline spinlocks).

_PA_RISC1_0 is cruft in HPUX 11. It's definitely not supported
and no maniac is going that change that.

> 
> Although parisc-linux may not run on PA1.0 hardware, you never know what some
> software maniac will do in the future.

I don't think the proposed change will prevent anyone from *attempting*
to port parisc-linux to PA1.0 architecture. <shudder>.

But this digresses from the original question about __hp9000s[78]00.

...
> > John, is there something specific you are concerned about which
> > can't be handled by the above predefined symbols?
> 
> I was just being cautious about __hp9000s[7-8]00.  I looked at some of
> the uses in the hpux 10.X headers, and for usage in gcc and binutils.  I
> don't see any obvious reason why these two symbols need to be defined
> for linux.

Ok. I was just going on my (limited) knowledge of the platforms
and how linux configuration works.

> I believe that the compiler only should predefine symbols that are necessary
> for the control of code generation.

Agreed. That's why we wanted it removed.

...
> There appears to be some model dependence
> in the floating point implementations from one pa machine to another.  If
> this can't all be hidden in the kernel, some further specification of the
> hardware might be needed for floating point.  For example, __i686__ is
> defined on the Pentium Pro and is used in bits/mathinline.h.

HPUX hides it all in the kernel somehow...and __hp9000s[7-8]00 won't
help with this problem anyway.

thanks for your insight,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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> > There appears to be some model dependence
> > in the floating point implementations from one pa machine to another.  If
> > this can't all be hidden in the kernel, some further specification of the
> > hardware might be needed for floating point.  For example, __i686__ is
> > defined on the Pentium Pro and is used in bits/mathinline.h.
> 
> HPUX hides it all in the kernel somehow...and __hp9000s[7-8]00 won't
> help with this problem anyway.

Agreed.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Emacs 20 uploaded
Date: 11 Oct 2000 17:55:37 -0400
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Well, I officially declare PA/RISC Linux to be "useful".  Emacs 20
builds fine (including dump/undump) and apperas to run quite well on
my A180.

See ftp://puffin.external.hp.com/pub/debian-hppa/

(ducking the editor war that follows)

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Subject: Re: [parisc-linux] __hp9000s700 predefined
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In-Reply-To: <200010112021.NAA07074@milano.cup.hp.com> from "Grant Grundler" at Oct 11, 2000 01:21:33 pm
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> "John David Anglin" wrote:
> > You probably know better than I but I think PA1.0 is the "portable" default
> > for most libraries under 10.X.
> 
> It's definitely not under 10.20. PA1.1 is the minimum.
> I think PA1.0/CIO support was completely dropped after
> 10.01 or 10.10 releases.

Don't think so under 10.20.  We're talking about code generation here,
not device support.  The HP cc compiler uses the +DAarchitecture option
to control generation of code for a particular version of the PA-RISC
architecture.  It also specifies which version of the math library to
use when -lm is specified.  The directory /usr/lib/pa1.1 under 10.20
still has different versions for libcl.[a,sl] and libm.a.  As I noted
before, there is a complete list of models and architectures in
/opt/langtools/lib/sched.models.

I tried different code generation options with the HP cc compiler
under 10.20 and 11.  The HP cc compiler sets LPATH (at least if it is not
defined) to /usr/lib/pa1.1:/usr/lib:/opt/langtools/lib: for PA1.1 and PA2.0
models.  The default for PA1.0 models is /usr/lib:/usr/ccs/lib, according
to the ld man page.  Here are the HP cc predefines for 808, 735 and 700
models under 10.20:

-D__hp9000s700 -D__hp9000s800 -D__hppa -D__hpux -D__unix -e -D_PA_RISC1_0 -D__CLASSIC_C__

-D__hp9000s700 -D__hp9000s800 -D__hppa -D__hpux -D__unix -e -D_PA_RISC1_1 -D__CLASSIC_C__

-D__hp9000s700 -D__hp9000s800 -D__hppa -D__hpux -D__unix -e -D_PA_RISC1_1 -D__CLASSIC_C__

The _PA_RISC1_1 define for the 700 changes to a _PA_RISC2_0 define under 11.
Under 11, only a remnant of the pa1.1 library remains for old link scripts.
The same libraries appear to be used for PA1.0 to PA2.0.  This leads me
to conclude that the libraries must all be PA1.0 compatible.  HP cc uses the
.LEVEL directive to tell the assembler which object format to generate.

> > There appears to be some model dependence
> > in the floating point implementations from one pa machine to another.  If
> > this can't all be hidden in the kernel, some further specification of the
> > hardware might be needed for floating point.  For example, __i686__ is
> > defined on the Pentium Pro and is used in bits/mathinline.h.
> 
> HPUX hides it all in the kernel somehow...and __hp9000s[7-8]00 won't
> help with this problem anyway.

The +FP cc option can be used to control floating operation.  10.20 also has
fpgetround and friends for runtime control.  11.0 has fenv.h, and fegetround
and friends.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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"John David Anglin" wrote:
> We're talking about code generation here,
> not device support.

John,
Got it. Architecture flags (eg _PARISC1_1) determine code generation.

I'm not preventing people from building PA1.0 code if that's what
they really want.

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: "Dempsey Mork" <dempsey@magellancc.com>
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Subject: [parisc-linux] public shell
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I have a public shell company available for a reverse merger.  I will email full details if interested.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 64-bit toolchain available for native PA-RISC Linux
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Hi,

I've uploaded a cross-toolchain for hppa64 built for 32-bit
Linux/PA-RISC.  It's at

ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/gcc64-20001013.tgz
ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/binutils64-20001013.tgz

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] tr0/tr1 defines in asmregs.h
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Hi all,
cr24 and cr25 are not "tempory" registers for parisc-linux.
IMHO, No one should be referencing "tr0/tr1" names in any
assembler code.

Comments?
Should this patch be committed to the CVS tree?

thanks
grant

grundler <526>cvs diff include/asm-parisc/asmregs.h
Index: include/asm-parisc/asmregs.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/asmregs.h,v
retrieving revision 1.4
diff -u -p -r1.4 asmregs.h
--- asmregs.h   2000/06/28 23:38:09     1.4
+++ asmregs.h   2000/10/13 20:07:16
@@ -144,8 +144,10 @@ isr:       .reg    %cr20
 ior:   .reg    %cr21
 ipsw:  .reg    %cr22
 eirr:  .reg    %cr23
-tr0:   .reg    %cr24
-tr1:   .reg    %cr25
+#if 0
+tr0:   .reg    %cr24   /* pointer to kernel address space page directory */
+tr1:   .reg    %cr25   /* pointer to the current user address space pdir */
+#endif
 tr2:   .reg    %cr26
 tr3:   .reg    %cr27
 tr4:   .reg    %cr28


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] PDC PAT support committed
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FYI

I committed the first cut of the PDC PAT support.
L1000/L2000/A500 are short term targets of this support.

Short Term TODO kernel items:

o reduce amount of debug output from do_pat_discovery().
o debug why output stops at "Memory: 12248k available"
  (64-bit kernel is hardcoded to only see 16MB RAM)
o write code to setup PCI resources in lba_pci.c.
o 64-bit VM work

enjoy!
grant


Firmware Version  40.20

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      440  MHz   Active                 Functional         512 KB   1 MB
      1      440  MHz   Idle                   Functional         512 KB   1 MB

  Central Bus Speed (in MHz)  :        111  
  Available Memory            :     262144  KB
  Good Memory Required        :      11468  KB

   Primary boot path:    0/0/1/1.15          
   Alternate boot path:  0/0/2/1.15          
   Console path:         0/0/4/0.0           
   Keyboard path:        0/0/4/0.0           

 WARNING:  The non-destructive test bit was set, so memory was not tested 
            destructively.  Information only, no action required. 


---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > bo lan
Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Network Station Address 00306e-03799f
System IP Address 15.8.80.78
Server IP Address 15.8.81.247

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@hpisp747 Mon Sep 25 17:09:43 PDT 2000
0/vmlinux 2684576 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa64 '
Kernel: partition 0 file /vmlinux
ELF64 executable

Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 1695920 mediaptr 0x1000
Segment 1 load 002a0000 size 402520 mediaptr 0x1a0000
Segment 2 load 00304000 size 147456 mediaptr 0x203000
branching to kernel entry point 0x00100000
Set default PSW W bit to 1
PDC Console Initialized
The 64-bit Kernel has started...
Enabled FP coprocessor
If this is the LAST MESSAGE YOU SEE, you're probably using
32-bit millicode by mistake.
Free memory starts at: 0xc0372000
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa64 '
PALO initrd 0-0
model   00005cb0 00000491 00000000 00000001 23355fdc 100000f0 00000008 000000b2 000000b2
vers    00000300
cpuid   0000022a
CPUID vers 17 rev 10
CPU might be a PA8500 (PCX-W)
CPU(s): 1 x PA8500 (PCX-W) at 440.000000 MHz
Searching for devices in PDC firmware... processor hpa 0xfffffffffffa0000
CELL_GET_NUMBER: 0x0 0x1
NUM_TO_LOC status: -2
PDC_PAT_CELL_MODULE: pcell_loc 0x1 mod_index 0x0
  status 0
PDC_PAT_CELL_MODULE: pmod_loc 0xff00ff11 mod_path 0xffffffffffffa0
PAT_ENTITY_PROC: id_eid 0xa0ff0000
PDC_PAT_CELL_MODULE: pcell_loc 0x1 mod_index 0x1
  status 0
PDC_PAT_CELL_MODULE: pmod_loc 0xff01ff11 mod_path 0xffffffffffffa2
PAT_ENTITY_PROC: id_eid 0xa2ff0000
PDC_PAT_CELL_MODULE: pcell_loc 0x1 mod_index 0x2
  status 0
PDC_PAT_CELL_MODULE: pmod_loc 0xffffff71 mod_path 0xffffffffffff08
PAT_ENTITY_MEM: amount 0x10000000 min_gni_base 0x0 min_gni_len 0x0
PDC_PAT_CELL_MODULE: pcell_loc 0x1 mod_index 0x3
  status 0
PDC_PAT_CELL_MODULE: pmod_loc 0xffffff82 mod_path 0xffffffffffff00
PAT_ENTITY_SBA: ranges 6 -4611686018427387899/0xfffffffffed18000/0xfffffffffed2ffff -19824640/0xfffffffffed2ffff/0x8000000000000000 -19726337/0x8000000000000000/0x0 -9223372036854775808/0x0/0x3f 0/0x3f/0x8000000000000001 63/0x8000000000000001/0xfffffffff8000000
PDC_PAT_CELL_MODULE: pcell_loc 0x1 mod_index 0x4
  status 0
PDC_PAT_CELL_MODULE: pmod_loc 0xffff04ff83 mod_path 0xffffffffff0000
PAT_ENTITY_LBA: ranges 4 -9223372036854775808/0x0/0x7 0/0x7/0x8000000000000001 7/0x8000000000000001/0xfffffffff8000000 -9223372036854775807/0xfffffffff8000000/0xfffffffff87fffff
PDC_PAT_CELL_MODULE: pcell_loc 0x1 mod_index 0x5
  status 0
PDC_PAT_CELL_MODULE: pmod_loc 0xffff01ff83 mod_path 0xffffffffff0002
PAT_ENTITY_LBA: ranges 4 -9223372036854775808/0x10/0x17 16/0x17/0x8000000000000001 23/0x8000000000000001/0xfffffffff9000000 -9223372036854775807/0xfffffffff9000000/0xfffffffff97fffff
PDC_PAT_CELL_MODULE: pcell_loc 0x1 mod_index 0x6
  status 0
PDC_PAT_CELL_MODULE: pmod_loc 0xffff02ff83 mod_path 0xffffffffff0004
PAT_ENTITY_LBA: ranges 4 -9223372036854775808/0x20/0x27 32/0x27/0x8000000000000001 39/0x8000000000000001/0xfffffffffa000000 -9223372036854775807/0xfffffffffa000000/0xfffffffffa7fffff
PDC_PAT_CELL_MODULE: pcell_loc 0x1 mod_index 0x7
  status 0
PDC_PAT_CELL_MODULE: pmod_loc 0xffff03ff83 mod_path 0xffffffffff0006
PAT_ENTITY_LBA: ranges 4 -9223372036854775808/0x30/0x37 48/0x37/0x8000000000000001 55/0x8000000000000001/0xfffffffffb000000 -9223372036854775807/0xfffffffffb000000/0xfffffffffb7fffff
PDC_PAT_CELL_MODULE: pcell_loc 0x1 mod_index 0x8
  status -7
Found devices:
1. Crescendo 440 (0) at 0xfffffffffffa0000, versions 0x5cb, 0x0, 0x4, 0x0, 0x91
2. Crescendo 440 (0) at 0xfffffffffffa2000, versions 0x5cb, 0x0, 0x4, 0x0, 0x91
3. Crescendo Memory (1) at 0xfffffffffed08000, versions 0x9b, 0x0, 0x9, 0x0, 0x0
4. Astro BC Runway Port (12) at 0xfffffffffed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
5. Elroy PCI Bridge (13) at 0xfffffffffed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. Elroy PCI Bridge (13) at 0xfffffffffed34000, versions 0x782, 0x0, 0xa, 0x0, 0x0
7. Elroy PCI Bridge (13) at 0xfffffffffed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
8. Elroy PCI Bridge (13) at 0xfffffffffed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
That's a total of 8 devices.
Linux version 2.4.0-test6 (grundler@hpisp747) (gcc version 2.96 20000925 (experimental)) #29 Fri Oct 13 12:24:46 PDT 2000
free_bootmem(0x372200, 0xc8de00)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 4096
zone(0): 2048 pages.
zone(1): 2048 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa64 
trap_init
Calibrating delay loop... 878.18 BogoMIPS
Memory: 12248k available

[ and then it hangs... ] 


From - Thu Nov 08 21:13:40 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] more a500 output
Date: Fri, 13 Oct 2000 18:42:22 -0700 (PDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:8110

Hi all,
Here's the latest output from the a500...next step is to
setup the PCI resources before we can go any further.

I've disabled CONFIG_PROC_FS...hangs in proc_misc_init() (iirc).
Anyone interested in looking into that?
(Remember this is a 64-bit kernel)

A500 dies when scsi driver tries to talk to an unconfigured device.
PAT PDC *is* different.

grant


Firmware Version  40.20

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      440  MHz   Active                 Functional         512 KB   1 MB
      1      440  MHz   Idle                   Functional         512 KB   1 MB

  Central Bus Speed (in MHz)  :        111  
  Available Memory            :     262144  KB
  Good Memory Required        :      11468  KB

   Primary boot path:    0/0/1/1.15          
   Alternate boot path:  0/0/2/1.15          
   Console path:         0/0/4/0.0           
   Keyboard path:        0/0/4/0.0           

 WARNING:  The non-destructive test bit was set, so memory was not tested 
            destructively.  Information only, no action required. 


---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > bo lann
Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Network Station Address 00306e-03799f
System IP Address 15.8.80.78
Server IP Address 15.8.81.247

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@hpisp747 Mon Sep 25 17:09:43 PDT 2000
0/vmlinux 2559444 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa64 '
Kernel: partition 0 file /vmlinux
ELF64 executable

Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1612264 mediaptr 0x1000
Segment 1 load 0028a000 size 386608 mediaptr 0x18b000
Segment 2 load 002ec000 size 124944 mediaptr 0x1ea000
Segment 3 load 0030c000 size 16384 mediaptr 0x209000
branching to kernel entry point 0x00100000
Set default PSW W bit to 1
PDC Console Initialized
The 64-bit Kernel has started...
Enabled FP coprocessor
If this is the LAST MESSAGE YOU SEE, you're probably using
32-bit millicode by mistake.
Free memory starts at: 0xc035a000
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa64 '
PALO initrd 0-0
model   00005cb0 00000491 00000000 00000001 23355fdc 100000f0 00000008 000000b2 000000b2
vers    00000300
cpuid   0000022a
CPUID vers 17 rev 10
CPU might be a PA8500 (PCX-W)
CPU(s): 1 x PA8500 (PCX-W) at 440.000000 MHz
Searching for devices in PDC firmware... processor hpa 0xfffffffffffa0000
CELL_GET_NUMBER: 0x0 0x1
PAT_ENTITY_PROC: id_eid 0xa0ff0000
PAT_ENTITY_PROC: id_eid 0xa2ff0000
PAT_ENTITY_MEM: amount 0x10000000 min_gni_base 0x0 min_gni_len 0x0
PAT_ENTITY_SBA: ranges 6 0: 0xc000000000000005 0xfffffffffed18000 0xfffffffffed2ffff
 1: 0x8000000000000000 0x0 0x3f
 2: 0x8000000000000001 0xfffffffff8000000 0xfffffffffbffffff
 3: 0x40000001a1701 0xfffffffff0000000 0xfffffffff7ffffff
 4: 0x40000001a1701 0xfffffffffc000000 0xfffffffffecfffff
 5: 0x8000000000000002 0xfffffff800000000 0xfffffffbffffffff

PAT_ENTITY_LBA: ranges 4 0: 0x8000000000000000 0x0 0x7
 1: 0x8000000000000001 0xfffffffff8000000 0xfffffffff87fffff
 2: 0x8000000000000002 0xfffffff804000000 0xfffffff87fffffff
 3: 0x8000000000000004 0xfffffff800000000 0xfffffff803ffffff

PAT_ENTITY_LBA: ranges 4 0: 0x8000000000000000 0x10 0x17
 1: 0x8000000000000001 0xfffffffff9000000 0xfffffffff97fffff
 2: 0x8000000000000002 0xfffffff904000000 0xfffffff97fffffff
 3: 0x8000000000000004 0xfffffff900000000 0xfffffff903ffffff

PAT_ENTITY_LBA: ranges 4 0: 0x8000000000000000 0x20 0x27
 1: 0x8000000000000001 0xfffffffffa000000 0xfffffffffa7fffff
 2: 0x8000000000000002 0xfffffffa04000000 0xfffffffa7fffffff
 3: 0x8000000000000004 0xfffffffa00000000 0xfffffffa03ffffff

PAT_ENTITY_LBA: ranges 4 0: 0x8000000000000000 0x30 0x37
 1: 0x8000000000000001 0xfffffffffb000000 0xfffffffffb7fffff
 2: 0x8000000000000002 0xfffffffb04000000 0xfffffffb7fffffff
 3: 0x8000000000000004 0xfffffffb00000000 0xfffffffb03ffffff

Found devices:
1. Crescendo 440 (0) at 0xfffffffffffa0000, versions 0x5cb, 0x0, 0x4, 0x0, 0x91
2. Crescendo 440 (0) at 0xfffffffffffa2000, versions 0x5cb, 0x0, 0x4, 0x0, 0x91
3. Crescendo Memory (1) at 0xfffffffffed08000, versions 0x9b, 0x0, 0x9, 0x0, 0x0
4. Astro BC Runway Port (12) at 0xfffffffffed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
5. Elroy PCI Bridge (13) at 0xfffffffffed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. Elroy PCI Bridge (13) at 0xfffffffffed34000, versions 0x782, 0x0, 0xa, 0x0, 0x0
7. Elroy PCI Bridge (13) at 0xfffffffffed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
8. Elroy PCI Bridge (13) at 0xfffffffffed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
That's a total of 8 devices.
Linux version 2.4.0-test6 (grundler@hpisp747) (gcc version 2.96 20000925 (experimental)) #53 Fri Oct 13 18:02:03 PDT 2000
free_bootmem(0x35a200, 0xca5e00)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 4096
zone(0): 2048 pages.
zone(1): 2048 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa64 
trap_init
Calibrating delay loop... 878.18 BogoMIPS
Memory: 12344k available
Dentry-cache hash table entries: 2048 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 512 (order: 0, 4096 bytes)
Page-cache hash table entries: 4096 (order: 3, 32768 bytes)
Inode-cache hash table entries: 1024 (order: 2, 16384 bytes)
POSIX conformance testing by UNIFIX
lba version TR4.0 (0x5) found at 0xfffffffffed30000
lba_fixup_bus(0x00000000c0fe2180) bus 0 sysdata 0x00000000c0fe71e0
lba version TR4.0 (0x5) found at 0xfffffffffed34000
lba_fixup_bus(0x00000000c0fe2280) bus 16 sysdata 0x00000000c0fe73a0
lba version TR4.0 (0x5) found at 0xfffffffffed38000
lba_fixup_bus(0x00000000c0fe2380) bus 32 sysdata 0x00000000c0fe7460
lba version TR4.0 (0x5) found at 0xfffffffffed3c000
lba_fixup_bus(0x00000000c0fe2480) bus 48 sysdata 0x00000000c0fe7560
lba_fixup_bus(0x00000000c0fe2580) bus 49 sysdata 0x00000000c0fe7560
lba_fixup_bus(0x00000000c0fe2680) bus 50 sysdata 0x00000000c0fe7560
SBA found Astro 2.1 at 0xfffffffffed00000
() ibase 0x1 imask 0xff000000
() base_addr fffffffffed3c000
() base_addr fffffffffed38000
() base_addr fffffffffed34000
() base_addr fffffffffed30000
() done
lba: lba_bios_init
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 256 buckets, 4Kbytes
TCP: Hash tables configured (established 512 bind 512)
Starting kswapd v1.7
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sym53c8xx: at PCI bus 0, device 2, function 0
sym53c8xx: at PCI bus 0, device 2, function 1
sym53c8xx: at PCI bus 0, device 1, function 0
sym53c8xx: at PCI bus 0, device 1, function 1
sym53c8xx: at PCI bus 32, device 0, function 0
sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...
sym53c8xx: setting PCI_COMMAND_MASTER PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.

************* SYSTEM ALERT **************
SYSTEM NAME: uninitialized
DATE: 10/14/2000 TIME: 01:20:38
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         FLASH     OFF        ON
LED State: Unexpected Reboot. Running non-OS code. Non-critical error detected.
Check Chassis and Console Logs for error messages.

0x0000007000FF6292 00000000 00000000 - type  0 = Data Field Unused
0x5800087000FF6292 00006409 0E011426 - type 11 = Timestamp 10/14/2000 01:20:38
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:X
*****************************************

CAUTION: System Alerts have been disabled. This will re-enable with 
a re-boot or power-on of the system. To re-enable system alerts now, you
may use the AC (Alert Display Configuration) command.

************* SYSTEM ALERT **************
Alert messages are now disabled. Enter Commands Interface AC command to enable them again
*****************************************


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From: Jason Eckhardt <jason@equator.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Qn on Linux/PA-RISC future Console driver
Date: Wed, 7 Apr 1999 11:05:39 -0700 (PDT)
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>
> Hi,
> 	Has anyone done some work on Linux/PA-RISC Console driver.
> 	Are we planning to use PDC for console or is it possible
> 	to directly access Console device. 
>

  I believe HP-UX uses the STI ROM interface rather than going
  through the IODC interface (i.e. like the bootstrap), although an HP person
  can tell us positively.
  It doesn't seem we could get very good performance through IODC console calls
  due to the setup involved when calling it from an virtually addressed OS 
  (switching to real mode, etc). Also, I believe that IODC is not re-entrant.
  I don't know if the STI ROM has the same restrictions.
  
  It would be nice to have direct access to the console device (although it
  is more work), but as of
  yet we have no console device-specific documentation (or even the STI ROM
  i/f for that matter).

  Jason.


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From: Brian Poole <raj@cerias.purdue.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Troubles following the 'recipe'
Date: Sat, 14 Oct 2000 00:50:16 -0500 (EST)
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Xref: news.gmane.org gmane.linux.ports.parisc:8112

Hello,

I was looking to test Linux out and see how it was going towards
supporting my poor old HP9000 715/80 that I have here, however I seem to
have some trouble compiling the toolchain as described in the 'recipe' and
would like to ask for some assistance if possible.

I have followed the instructions very closely, deviating only twice in
areas which I can't see affecting my problem. The first was to add -j 2
to the make commands to help speed it up on my systems, as both are SMP.
The other was to grab nfsroot-latest.tar.gz instead of 
nfsroot-20000214.tar.gz, mainly becuase that file no longer exists (might
need to update the recipe?). However as I hadn't reached anything to do
with the nfsroot yet, I deem this inconsquential as well.

So what is the problem? Well, a while (hard to say exactly, one is a
dual 500, the other is a dual 100, big difference in times ;) into the
building of gcc both of my machines error out, complaining that they can't
find some header files. Specifically it errors out while compiling
iogetline.c, complaining that it can't find errno.h (from
../../../gcc/libio/libioP.h:30:19), _G_config.h 
(../../../gcc/libio/libio.h:30:23) and string.h 
(../../../gcc/libio/iogetline.c:27:20). The errors are the same for each
machine. I downloaded all of the files today, October 13th.

Hopefully I am just doing something obviously wrong that someone could
point out to me and I can proceed happily along. Both systems have
working compilers & libraries, one is a SuSE 6.3 install and the other is
Slackware 7.1. I can provide tons more information if it is desired, tried
to just give the information that looked relevant. Or if this is a
waste of time and I should just stop trying to compile my own and grab the
binaries (which I just noticed were also available) please tell me.


Thanks for the time,

-b


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Troubles following the 'recipe'
Date: Sat, 14 Oct 2000 18:50:46 +1100 (EST)
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On Sat, 14 Oct 2000, Brian Poole wrote:

> find some header files. Specifically it errors out while compiling
> iogetline.c, complaining that it can't find errno.h (from
> ../../../gcc/libio/libioP.h:30:19), _G_config.h 
> (../../../gcc/libio/libio.h:30:23) and string.h 
> (../../../gcc/libio/iogetline.c:27:20). The errors are the same for each
> machine. I downloaded all of the files today, October 13th.

Can you show the command line that failed here?  If you followed the
recipe, then you should have configured gcc with --prefix=$DEST, and have 
$DEST/include/errno.h on your system.

-- 
Linuxcare.  Support for the Revolution.



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Xref: news.gmane.org gmane.linux.ports.parisc:8114

> Alan Modra wrote..
> Can you show the command line that failed here? If you followed the

Sure. The exact command that this output came from was..

make -j2 LIBGCC2_INCLUDES=-I$DEST/include

And I configured it as per the recipe with..

../gcc/configure --target=hppa1.1-linux --prefix=$DEST --host=$MACH
--disable-nls --without-libc

which according to configure configured gcc as..

../gcc/configure
--with-gcc-version-trigger=/home/raj/parisc/gcc/gcc/version.c
--target=hppa1.1-linux --prefix=/usr/parisc --host=i386-linux
--disable-nls --without-libc --norecursion

> recipe, then you should have configured gcc with --prefix=$DEST, and have 
> $DEST/include/errno.h on your system.

Indeed, I noted this myself, was wondering why it had not found headers
that I should have. The errno.h header is in fact in $DEST/include,
checked then and just checked again.

However doesn't prefix indicate where it is installing to, and not where
it is reading from for it's includes, or am I missing something? 


Thanks for the help,

-b


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Subject: Re: [parisc-linux] Troubles following the 'recipe'
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> So what is the problem? Well, a while (hard to say exactly, one is a
> dual 500, the other is a dual 100, big difference in times ;) into the
> building of gcc both of my machines error out, complaining that they can't
> find some header files. Specifically it errors out while compiling
> iogetline.c, complaining that it can't find errno.h (from
> ../../../gcc/libio/libioP.h:30:19), _G_config.h 
> (../../../gcc/libio/libio.h:30:23) and string.h 
> (../../../gcc/libio/iogetline.c:27:20). The errors are the same for each
> machine. I downloaded all of the files today, October 13th.

Run the failing compilation with the gcc `-v' option to see the include search
directories.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


From - Thu Nov 08 21:13:41 2018
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From: Brian Poole <raj@cerias.purdue.edu>
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On Sat, 14 Oct 2000, John David Anglin wrote:
> 
> Run the failing compilation with the gcc `-v' option to see the include search
> directories.
> 

Ah this seems to yield a bit more light..

It ignores about 8 non-existent dirs.. 
(I've added BDIR=/home/raj/parisc/gcc-build to help shorten my typing.. no
mouse. DEST is still /usr/parisc :)

$DEST/hppa1.1-linux/bin/include
$DEST/hppa1.1-linux/lib/include
$DEST/hppa1.1-linux/include
$BDIR/lib/gcc-lib/hppa1.1-linux/2.96/include
$BDIR/hppa1.1-linux/sys-include
$BDIR/hppa1.1-linux/include
$DEST/hppa1.1-linux/sys-include
$DEST/hppa1.1-linux/include

then outputs..

#include "..." search starts here:
#include <...> search starts here:
 .
 ../../../gcc/libio
 $BDIR/gcc/include
 $DEST/lib/gcc-lib/hppa1.1-linux/2.96/include

Well now, it doesn't seem to be reading $DEST/include, why is it not?
Seems strange that I be the only one to encounter this problem, given
the same set of simple instructions. As well, how do I fix this? 

In the Makefile under gcc-build it lists the includedir=${prefix}/include
and prefix as /usr/parisc, which looks correct.. ideas?

Thanks again,

-b


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> Ah this seems to yield a bit more light..
> 
> It ignores about 8 non-existent dirs.. 
> (I've added BDIR=/home/raj/parisc/gcc-build to help shorten my typing.. no
> mouse. DEST is still /usr/parisc :)
> 
> $DEST/hppa1.1-linux/bin/include
> $DEST/hppa1.1-linux/lib/include
> $DEST/hppa1.1-linux/include
> $BDIR/lib/gcc-lib/hppa1.1-linux/2.96/include
> $BDIR/hppa1.1-linux/sys-include
> $BDIR/hppa1.1-linux/include
> $DEST/hppa1.1-linux/sys-include
> $DEST/hppa1.1-linux/include
> 
> then outputs..
> 
> #include "..." search starts here:
> #include <...> search starts here:
>  .
>  ../../../gcc/libio
>  $BDIR/gcc/include
>  $DEST/lib/gcc-lib/hppa1.1-linux/2.96/include
> 
> Well now, it doesn't seem to be reading $DEST/include, why is it not?
> Seems strange that I be the only one to encounter this problem, given
> the same set of simple instructions. As well, how do I fix this? 
> 
> In the Makefile under gcc-build it lists the includedir=${prefix}/include
> and prefix as /usr/parisc, which looks correct.. ideas?

Did you install gcc?  The include paths are a bit different if it isn't
installed.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Troubles following the 'recipe'
Date: 14 Oct 2000 18:00:56 -0400
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Brian Poole <raj@cerias.purdue.edu> writes:

> And I configured it as per the recipe with..
> 
> ../gcc/configure --target=hppa1.1-linux --prefix=$DEST --host=$MACH
> --disable-nls --without-libc

--without-libc does nothing.  You also need --enable-languages=c, or
else it will try to build ObjC, C++, Java, etc., all of which require
you to have a built libc.

Another thing - though 'hppa1.1-linux' works, you should use
'hppa-linux' as the target instead.

You should configure gcc with:

../gcc/configure --target=hppa-linux --prefix=$DEST --enable-languages=c

If you want a cross-compiler for C++, you must build a cross-glibc
(using --prefix=$DEST/hppa-linux - important!) and then rebuild with
--enable-languages=c,c++.

I thought the recipe had been updated (I *clearly* remember helping
write a functional one a while ago).  Are you sure this is a recent
version of it?

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Xref: news.gmane.org gmane.linux.ports.parisc:8119

On 14 Oct 2000, David Huggins-Daines wrote:

> Brian Poole <raj@cerias.purdue.edu> writes:
> 
> > And I configured it as per the recipe with..
> > 
> > ../gcc/configure --target=hppa1.1-linux --prefix=$DEST --host=$MACH
> > --disable-nls --without-libc
> 
> --without-libc does nothing.  You also need --enable-languages=c, or
> else it will try to build ObjC, C++, Java, etc., all of which require
> you to have a built libc.
> 
> Another thing - though 'hppa1.1-linux' works, you should use
> 'hppa-linux' as the target instead.
> 
> You should configure gcc with:
> 
> ../gcc/configure --target=hppa-linux --prefix=$DEST --enable-languages=c
> 
> If you want a cross-compiler for C++, you must build a cross-glibc
> (using --prefix=$DEST/hppa-linux - important!) and then rebuild with
> --enable-languages=c,c++.
> 
> I thought the recipe had been updated (I *clearly* remember helping
> write a functional one a while ago).  Are you sure this is a recent
> version of it?

This is off of http://thepuffingroup.com/parisc/recipe.html which says
page was last modified 09/30/2000. Guess this puppy is a bit out of date
despite what the page says because everything I've been doing is off that 
one. I noticed it building the Java, etc, but assumed that was just the
way things were supposed to go. Any idea what you did with that functional
one? ;)

I'll try recompiling with the above stated configure and see if I get any
better luck. 


thanks,

-b


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Troubles following the 'recipe'
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To: Brian Poole <raj@cerias.purdue.edu>
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On Sat, 14 Oct 2000, Brian Poole wrote:

> On 14 Oct 2000, David Huggins-Daines wrote:
> > Another thing - though 'hppa1.1-linux' works, you should use
> > 'hppa-linux' as the target instead.

The only thing this affects is later compiles of eg. the kernel, which
have Makefiles set up to expect a cross-compiler called hppa-linux-gcc

> > You should configure gcc with:
> > 
> > ../gcc/configure --target=hppa-linux --prefix=$DEST --enable-languages=c
> > 
> > If you want a cross-compiler for C++, you must build a cross-glibc
> > (using --prefix=$DEST/hppa-linux - important!) and then rebuild with
> > --enable-languages=c,c++.
> > 
> > I thought the recipe had been updated (I *clearly* remember helping
> > write a functional one a while ago).  Are you sure this is a recent
> > version of it?
> 
> This is off of http://thepuffingroup.com/parisc/recipe.html which says
> page was last modified 09/30/2000. Guess this puppy is a bit out of date
> despite what the page says because everything I've been doing is off that 
> one. I noticed it building the Java, etc, but assumed that was just the
> way things were supposed to go. Any idea what you did with that functional
> one? ;)
> 
> I'll try recompiling with the above stated configure and see if I get any
> better luck. 

Bung your includes into ${DEST}/${TARGET}/include, as that is the 
directory where a cross-compiler expects to find them (as you
found from the gcc -v).  That's the real fix to your problem.  Sorry I
didn't think of it earlier.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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On Sun, 15 Oct 2000, Alan Modra wrote:
> 
> Bung your includes into ${DEST}/${TARGET}/include, as that is the 
> directory where a cross-compiler expects to find them (as you
> found from the gcc -v).  That's the real fix to your problem.  Sorry I
> didn't think of it earlier.
> 
Hmm.. seems to be never ending problems here.. I made all recommended
changes and now the compile of gcc errors out with compilation errors..

specifically in gcc.c (beginning path is cut off to save my fingers)
gcc.c: In function `execute':
gcc.c:2559: `prus' has incomplete type
gcc.c:2560: `RUSAGE_CHILDREN' undeclared (first use in this function)
(warns that each undeclared is only warned about once)
gcc.c:2561: invalid use of undefined type `struct rusage'
(repeats ~10 times, diff line numbers)
gcc.c: At top level:
gcc.c:204: storage size of `rus' isn't known
gcc.c:204: storage size of `prus isn't known
make[1]: *** [gcc.o] Error 1
make[1]: Leaving directory `/d0/parisc-build/gcc-build/gcc'

sighs.. maybe I'll just leave parisc linux alone for a few months again
and see how it is doing again later ;)


-b


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Qn on Linux/PA-RISC future Console driver
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>
> Hi,
> 	Has anyone done some work on Linux/PA-RISC Console driver.
> 	Are we planning to use PDC for console or is it possible
> 	to directly access Console device. 

The GSC and PCI RS-232 consoles are managed by asio0 (tty) driver.
Not clear on HP-PB (SIO driver environment - not WSIO) or graphics consoles.

grant

Grant Grundler
Enterprise Systems Technology Lab
+1.408.447.7253


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On Sat, 14 Oct 2000, Brian Poole wrote:

> Hmm.. seems to be never ending problems here.. I made all recommended
> changes and now the compile of gcc errors out with compilation errors..
> 
> specifically in gcc.c (beginning path is cut off to save my fingers)

I'm not sure what this one is due to, but since it's during the compile of
gcc itself rather than gcc libraries, then it's likely something to do
with the include setup on your system.  ie. This problem likely isn't
anything to do with parisc gcc.  I suspect you will have problems
compiling other programs too.  Do you have a links /usr/include/linux and
/usr/include/asm pointing to kernel includes?  ie. something like the
following:

$ ls -l /usr/include/{linux,asm}
lrwxrwxrwx   1 root     root           24 Oct 25  1999 /usr/include/asm ->
../src/linux/include/asm
lrwxrwxrwx   1 root     root           26 Oct 25  1999 /usr/include/linux
-> ../src/linux/include/linux

$ grep rusage /usr/include/linux/*
/usr/include/linux/resource.h: * Definition of struct rusage taken from
BSD 4.3 Reno
/usr/include/linux/resource.h:struct    rusage {

> gcc.c: In function `execute':
> gcc.c:2559: `prus' has incomplete type
> gcc.c:2560: `RUSAGE_CHILDREN' undeclared (first use in this function)
> (warns that each undeclared is only warned about once)
> gcc.c:2561: invalid use of undefined type `struct rusage'
> (repeats ~10 times, diff line numbers)
> gcc.c: At top level:
> gcc.c:204: storage size of `rus' isn't known
> gcc.c:204: storage size of `prus isn't known
> make[1]: *** [gcc.o] Error 1
> make[1]: Leaving directory `/d0/parisc-build/gcc-build/gcc'

--
Linuxcare.  Support for the Revolution.


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Brian Poole wrote:
> Hello,
> 
> I was looking to test Linux out and see how it was going towards
> supporting my poor old HP9000 715/80 that I have here, however I seem to
> have some trouble compiling the toolchain as described in the 'recipe' and
> would like to ask for some assistance if possible.

The recipe is definitely out of date.
It's been on the TODO list since last week.
It would be great if Alan Modra updated it.

You can look at build-tools/recipe.linux or other files in build-tools
CVS repository at:
	http://puffin.external.hp.com/cgi-bin/cvsview/build-tools/


enjoy,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Sun, 15 Oct 2000, Grant Grundler wrote:

> The recipe is definitely out of date.
> It's been on the TODO list since last week.
> It would be great if Alan Modra updated it.

Sorry, I've been a bit slow.  Also did a surprising number of things the
wrong way first time when building everything from scratch.  :-(
Rebuilding from a working tool-base is quite different from starting over.

Anyway, what's there now Works For Me.  (I hope there's not too many
typos)  At least, it would be on the web site if I knew how to go about
pushing stuff from puffin.external.hp.com to www.thepuffingroup.com  Ain't
got no keys to open the door, Ma.

Currently the doco is available at
ftp://puffin.external.hp.com/pub/parisc/debug/recipe.x

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: [parisc-linux] Troubles with read only file system
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Hi all,

We have done everything well but the NFSroot and the bootable disk say that
we have a read only file system ???
What is the recipe for making a bootable disk because ours can not be the
good one...

Thanks,

Thomas


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"Thomas Marteau" wrote:
> Hi all,
> 
> We have done everything well but the NFSroot and the bootable disk say that
> we have a read only file system ???

Yeah...RO the default behavior.
I have the following entry on my NFS root etc/fstab:

15.8.81.247:/tftpboot/hppa / nfs defaults                       0       0

You can also manually:
	mount -o remount,rw /

This should work for both NFS root and SCSI root disks.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Subject: [parisc-linux] CPU "driver"?
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I've start thinking about our SMP support.
The PDC PAT work I'm doing now will also require some changes
to iosapic.c and how iosapic gets information from the firmware.

This led me to the idea that we should have a driver to claim
CPU instances. Some advantages

o CPU initialization code in fewer places. It's currently
  spread about in the inventory.c, setup.c, etc files.
  + fill in CPU specific data (eg id_eid or HPA) from PDC calls.
  + initialize other per CPU instance data (eg counters)
  + allocate/initialize per CPU IRQ_REGION and interupt handling.

o dynamic CPU add/removal possible using the driver callback's.
  (well, at least for now the add)
  + single place to cram CPU specific add/remove code.

I'm not sure what the drawbacks would be (SMP rendevous?)
but like to hear from others if I should or shouldn't
write such a driver.

thanks,
grant


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Hi
I have an parisc, were can I download the linux for it?
tnx & regards

rino


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On Tue, 17 Oct 2000, iternet wrote:

> I have an parisc, were can I download the linux for it?

Read http://thepuffingroup.com/parisc/recipe.html

-- 
Linuxcare.  Support for the Revolution.


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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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Subject: Re: [parisc-linux] Troubles following the 'recipe'
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	Hi
I try to completly rebuild chaintool with the last recipe. It works much more
better than the last time I try to build it. I still have some trouble with building
glibc with includes (but it's okay, I'm able to correct it). The compilation is okay,
but in the make install:
.././scripts/install-sh -c /opt/linux_hppa/src/build/glibc/elf/ld.so /opt/linux/hppa-linux/lib/ld-2.1.92.so.new
mv -f /opt/linux/hppa-linux/lib/ld-2.1.92.so.new /opt/linux/hppa-linux/lib/ld-2.1.92.so
make[2]: *** No rule to make target `/opt/linux/hppa-linux/lib/libc-2.1.92.so', needed by `/opt/linux/hppa-linux/lib/ld.so.1'.  Stop.
 
I'm not very proficient with makefiles, and I'm not able to debug this one.
The libc has been correctly build:
#ll /opt/linux_hppa/src/build/glibc/libc.so
-rwxr-xr-x   1 root       sys        4465666 Oct 17 10:05 /opt/linux_hppa/src/build/glibc/libc.so
#file /opt/linux_hppa/src/build/glibc/libc.so
/opt/linux_hppa/src/build/glibc/libc.so:        ELF-32 shared object file - PA-RISC 
#strings /opt/linux_hppa/src/build/glibc/libc.so | grep 2.1.92
2.1.92
GNU C Library development release version 2.1.92, by Roland McGrath et al.

And "ld" looks good to, and have been succesfully installed just before this error.


So, all looks okay, but makefile for install stuff seems to be wrong.
Do you have any clue ?

	Thanks.
-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com


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From: Alan Modra <alan@linuxcare.com.au>
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On Tue, 17 Oct 2000, Bruno Vidal wrote:

> but in the make install:
> .././scripts/install-sh -c /opt/linux_hppa/src/build/glibc/elf/ld.so /opt/linux/hppa-linux/lib/ld-2.1.92.so.new
> mv -f /opt/linux/hppa-linux/lib/ld-2.1.92.so.new /opt/linux/hppa-linux/lib/ld-2.1.92.so
> make[2]: *** No rule to make target `/opt/linux/hppa-linux/lib/libc-2.1.92.so', needed by `/opt/linux/hppa-linux/lib/ld.so.1'.  Stop.

Immediately after installing ld.so, "make install" should be installing
the new libc.so.  Hmm, your glibc sources are not the latest puffin ones,
as the latest glibc will install as 2.1.94  You might have better luck
after updating (via cvs).  At some point glibc configure was changed to
require make-3.79.1 or later to compile glibc, perhaps in response to a
problem such as you are seeing, so maybe you also need to upgrade "make".

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Don Dyer <don@fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Qn on Linux/PA-RISC future Console driver
Date: Wed, 07 Apr 1999 14:18:15 -0600
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Jason Eckhardt wrote:
> 
> >
> > Hi,
> >       Has anyone done some work on Linux/PA-RISC Console driver.
> >       Are we planning to use PDC for console or is it possible
> >       to directly access Console device.
> >
> 
>   I believe HP-UX uses the STI ROM interface rather than going
>   through the IODC interface (i.e. like the bootstrap), although an HP person
>   can tell us positively.

  IODC uses STI to access the graphics device.  This removes graphics
device dependencies in IODC and allows any graphics device (including
unknown or new devices) to be used as the text only boot device.

Don Dyer
Workstation Systems Lab
+1 970/898-4277


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Hi all,

Per Grant's suggestion I had looked into getting /dev/rtc to work. I
checked in my changes yesterday and they seem to be ok.

I was wondering if there's a list of TODOs for things that need to be
done in the kernel. I'd like to help if i can, though I'm still learning
the ropes so simple tasks are preferred :-)

thanks,
randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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Alan Modra <alan@linuxcare.com.au> writes:

> Immediately after installing ld.so, "make install" should be installing
> the new libc.so.  Hmm, your glibc sources are not the latest puffin ones,
> as the latest glibc will install as 2.1.94 

2.1.95 actually.  (Sorry for not announcing this on the list)

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Randolph Chung wrote:
> Hi all,
> 
> Per Grant's suggestion I had looked into getting /dev/rtc to work. I
> checked in my changes yesterday and they seem to be ok.

Hey Randolph! Excellent!

I'm still chuckling about finding "#CONFIG_RTC is not set".

> I was wondering if there's a list of TODOs for things that need to be
> done in the kernel. I'd like to help if i can, though I'm still learning
> the ropes so simple tasks are preferred :-)

We certainly do have a list:

	http://www.thepuffingroup.com/parisc/status.html

The only problem is this list lags behind the "real" TODO list
(in CVS website/status.x). This lag is a result of hosting CVS
on a different machine than the website and a slightly manual
process to syncronize the two.

The plan is to automate CVS->webserver updates...but maybe we shouldn't
bother and hook into the debian bug tracking system instead.
Suggestions for some other existing "change request" system?

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Subject: [parisc-linux] Trouble with new STI
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This is a multi-part message in MIME format.

------=_NextPart_000_000F_01C050C0.18E3D060
Content-Type: text/plain;
	charset="iso-8859-1"
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Hi all,

We've tried the new STI driver and our 712 dies with this message:

Kernel Panic: VFS: Unable to mount root fs on 01:00

We tried with Ramdisk, nfs and hard disk support and always the same =
end.
Also, the death happens when you 've passed bootp request...

Help!

Thomas

------=_NextPart_000_000F_01C050C0.18E3D060
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2614.3500" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi all,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>We've tried the new STI driver and our =
712 dies=20
with this message:</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Kernel Panic: VFS: Unable to mount root =
fs on=20
01:00</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>We tried with Ramdisk, nfs and hard =
disk support=20
and always the same end.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Also, the death happens when you 've =
passed bootp=20
request...</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Help!</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thomas</FONT></DIV></BODY></HTML>

------=_NextPart_000_000F_01C050C0.18E3D060--


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"Thomas Marteau" <marteaut@esiee.fr> writes:

> We've tried the new STI driver and our 712 dies with this message:
> Kernel Panic: VFS: Unable to mount root fs on 01:00
> We tried with Ramdisk, nfs and hard disk support and always the same end.

That has nothing to do with the STI drivers, and I'm afraid I can't
help you unless you give more detail.  Like your kernel .config file
for instance.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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> I'm still chuckling about finding "#CONFIG_RTC is not set".

:-) oh, and the "fix" I made was simply to correctly match up the
functions in the file_operations struct to the 2.4 structure. I think
the old genrtc driver was coded to use an older structure.

> We certainly do have a list:
> 
> 	http://www.thepuffingroup.com/parisc/status.html

Cool! I'll check it out.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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From: raunaq sushil pungaliya <rsp3@uakron.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP C110
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Hi
I have an HP C110 (120Mhz, 256MB, 2.0 GB) I bought off the Internet. It 
does not have an OS on it. Can I install linux on it? If yes, where do 
I download the port? Thanks. 
Raunaq


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: [parisc-linux] problems with binutils and/or g++
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Hi,

With current binutils (as of Oct. 13) and GCC, I get the following
error when building APT:

../build/obj/cmdline/apt-get.o: In function `global destructors keyed to c0out':
/home/build/apt-0.3.19/cmdline/apt-get.cc:1429: undefined reference to `pkgArchiveCleaner type_info function'
/usr/bin/ld: ../build/obj/cmdline/apt-get.o(.gnu.linkonce.t.__tf10LogCleaner+0x1c): cannot find stub entry 00000010___tf17pkgArchiveCleaner+0
/usr/bin/ld: ../build/obj/cmdline/apt-get.o(.gnu.linkonce.t.__tf10LogCleaner+0x1c): cannot handle R_PARISC_PCREL17F for pkgArchiveCleaner type_info function
/home/build/apt-0.3.19/cmdline/apt-get.cc:1429: undefined reference to `pkgArchiveCleaner type_info node'
/home/build/apt-0.3.19/cmdline/apt-get.cc:1429: undefined reference to `pkgArchiveCleaner type_info node'

I'm not sure if this is a g++ or linker bug.  The symbol names look
really suspicious, suggesting that it might be a bug in RTTI (I'll try
recompiling with -fno-rtti, as I don't think APT uses it).  But on the
other hand we've had problems with link-once sections in the past.

Any thoughts?

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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On 17 Oct 2000, David Huggins-Daines wrote:

> recompiling with -fno-rtti, as I don't think APT uses it).  But on the
> other hand we've had problems with link-once sections in the past.

Translation:  Alan has been mucking around with link-once section symbols
and may have broken something.

I'll take a look.

-- 
Linuxcare.  Support for the Revolution.


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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] /proc/interrupts
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Hi all,

I just committed changes, which fills in i386-compatible 
interrupt-information into /proc/interrupts.

During the changes I inserted the constants IRQ_PER_REGION and 
IRQ_REGION_SHIFT into asm-parisc/irq.h, which would allow us to reduce the 
needed amount of static memory for the interrupt routing tables.

This change has following effects:
1. The until now used virtual IRQ's gets new numbers and increments in every 
region by 32 for parisc32 and 64 for parisc64. The old IRQ regions 
incremented by 256.
2. since we now shift by values of 5 (parisc32) or 6 (parisc64) bits, the 
time needed to calculate the offsets may have changed. This needs to be 
inspected.
3. the new algorithm needs less memory than before.

By default I left the current behaviour in CVS, but you may activate the new 
algorithm by changing the "#if 0" to "#if 1" in asm-parsic/irq.h and tell me 
what you think.

Thanks,
Helge.


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Subject: Re: [parisc-linux] Qn on Linux/PA-RISC future Console driver
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> 
> >
> > Hi,
> > 	Has anyone done some work on Linux/PA-RISC Console driver.
> > 	Are we planning to use PDC for console or is it possible
> > 	to directly access Console device. 
> >
> 
>   I believe HP-UX uses the STI ROM interface rather than going
>   through the IODC interface (i.e. like the bootstrap), although an HP person
>   can tell us positively.

That is correct.  The HPUX kernel uses the STI interface which involves
loading a set of routines out of the ROM into memory. (The STI ROM
is not execute in place.  In fact on older SGC based systems, it
is a byte wide ROM attached to a 32 bit bus...  In some later systems
[e.g. 712] the "STI ROM" is an image that is compiled into the main
bootrom).  The kernel uses the standard PS2 or HIL driver for the
console.  (In HP-UX land this is called the ITE or Internal Terminal
Emulator.)


>   It doesn't seem we could get very good performance through IODC console calls
>   due to the setup involved when calling it from an virtually addressed OS 
>   (switching to real mode, etc). Also, I believe that IODC is not re-entrant.
>   I don't know if the STI ROM has the same restrictions.

You just need the ability to allocate code space in the kernel, unpack the
ROM, and then jump to the routines.  When I ported this to another OS 
the challenge was getting the page permissions set to allow execution of
a malloc'd region.  The code is relocatable, and can be run in the 
virtually addressed kernel.

>   
>   It would be nice to have direct access to the console device (although it
>   is more work), but as of
>   yet we have no console device-specific documentation (or even the STI ROM
>   i/f for that matter).

You don't want to have to have code to talk to all the possible devices
(and potential new devices) compiled into the kernel.  That's the beauty 
of STI.  Plop a newly released graphics card in a system, and the card
carries its STI ROM so that the kernel doesn't necessarily need
to be upgraded.  Of course the X server has to know about any new
device.

As for STI documentation, The only docs that exist are ancient, and
about 4 revs of hardware out of date.  The engineer that maintains
this told me he intended to bring the docs up to date for the Linux
project, and then feed them through the  appropriate channels for
release.

	-Bill


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: problems with binutils and/or g++
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On 17 Oct 2000, David Huggins-Daines wrote:

> I'm not sure if this is a g++ or linker bug.  The symbol names look
> really suspicious, suggesting that it might be a bug in RTTI (I'll try
> recompiling with -fno-rtti, as I don't think APT uses it).  But on the
> other hand we've had problems with link-once sections in the past.
> 
> Any thoughts?

After fixing a zillion bugs of the "friend foo" -> "friend class foo" type 
and assorted protected/private/public issues, I finally managed to have apt
compile.  Same error as you found.  It's not a linker bug as it's not a 
case of the linker dropping some section; the undefined symbol really
isn't defined anywhere.  I don't know enough C++ to debug the problem
further.

Recompiling with -fno-rtti results in a successful build.

-- 
Linuxcare.  Support for the Revolution.



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> After fixing a zillion bugs of the "friend foo" -> "friend class foo" type 
> and assorted protected/private/public issues, I finally managed to have apt
> compile.  Same error as you found.  It's not a linker bug as it's not a 
> case of the linker dropping some section; the undefined symbol really
> isn't defined anywhere.  I don't know enough C++ to debug the problem
> further.

Alan, for my curiosity, could you explain this particular line from g++'s 
output (from dhd's message)?

../build/obj/cmdline/apt-get.o(.gnu.linkonce.t.__tf10LogCleaner+0x1c):
cannot handle R_PARISC_PCREL17F for pkgArchiveCleaner type_info function

that seems to be causing the "undefined" symbol messages.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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From: James Waterhouse <james.waterhouse@videotron.ca>
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Subject: [parisc-linux] booting on 712/60
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Hello,
	I just compiled a ramdisk using mondays cvs src for everything. I'm
using the graphics console ramdisk file off the puffin.external.hp.com
(ramdisk20000530-sticon.tgz) to make the ramdisk. Now when I got to boot
it boots up until the point where the kernel says...

Sending BOOTP request.... OK
IP-Config: Got BOOTP answer.. bla bla
Switching from PDC console

And then I get nothing. So what is happening when we switch from the PDC
console? Is the output going to the serial port, or am I crashing
because my graphics hardware is not supported, or am I crashing for some
other reason?

Thanks,
James


-- 
Can you discern the signs of the times? || www.danielrevelation.com
Do you see the storm fast approaching?  || www.sundaylaw.com
Is your future built on "The Rock"?     ||
www.bibleinfo.com/sc/toc_sc.html


From - Thu Nov 08 21:13:43 2018
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Hello James,

Am Wednesday 18 October 2000 09:03 schrieb James Waterhouse:
> Hello,
> 	I just compiled a ramdisk using mondays cvs src for everything. I'm
> using the graphics console ramdisk file off the puffin.external.hp.com
> (ramdisk20000530-sticon.tgz) to make the ramdisk. Now when I got to boot
> it boots up until the point where the kernel says...
>
> Sending BOOTP request.... OK
> IP-Config: Got BOOTP answer.. bla bla
> Switching from PDC console
>
> And then I get nothing. So what is happening when we switch from the PDC
> console? Is the output going to the serial port, or am I crashing
> because my graphics hardware is not supported, or am I crashing for some
> other reason?

I'm seeing the same here. The kernel switches independend of your 
kernel-settings (STI-Console - no STI-Console) to serial-console and just 
puts some of it's error-messages to the STI-console. 
If you don't have a nullmodem cable, you could try to ping/telnet your 
parisc, to see if it's still alive.
I currently don't know which change in CVS disallowed us to use just 
STI-Console, but will try to figure out later today. 

Helge.
 
>
> Thanks,
> James


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To: Randolph Chung <randolph@tausq.org>
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On Wed, 18 Oct 2000, Randolph Chung wrote:

> > After fixing a zillion bugs of the "friend foo" -> "friend class foo" type 
> > and assorted protected/private/public issues, I finally managed to have apt
> > compile.  Same error as you found.  It's not a linker bug as it's not a 
> > case of the linker dropping some section; the undefined symbol really
> > isn't defined anywhere.  I don't know enough C++ to debug the problem
> > further.
> 
> Alan, for my curiosity, could you explain this particular line from g++'s 
> output (from dhd's message)?
> 
> ../build/obj/cmdline/apt-get.o(.gnu.linkonce.t.__tf10LogCleaner+0x1c):
> cannot handle R_PARISC_PCREL17F for pkgArchiveCleaner type_info function
> 
> that seems to be causing the "undefined" symbol messages.

That message actually comes from the linker in response to an error during
final link.  See bfd/elf32-hppa.c:elf32_hppa_relocate_section.  It's
saying a particular relocation couldn't be relocated for some reason.  In
this case, the undefined symbol is the cause of the message (not the other
way around), and since the linker already reported the undefined symbol
it's rather redundant.  I should probably not report "cannot handle.." for
undefined symbols.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: "P. Veenema" <p.veenema@minocw.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Linux on a HP9000 E25
Date: Wed, 18 Oct 2000 12:36:57 +0200
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Hi There,

I have recently aquired an old HP9000 E25 system with HP-UX 10.20 installed, i don't have a license for HPUX so i want to install Linux on the machine, my question is; Where can i get the HP9000 (PA-RISC) linux version, and how to install it. My machine has a CDROM drive, and boots from it, so a bootable CD image would be very appreciated.

Thanx

Paul


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To: Randolph Chung <randolph@tausq.org>
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Randolph Chung <randolph@tausq.org> writes:

> Alan, for my curiosity, could you explain this particular line from g++'s 
> output (from dhd's message)?
> 
> ../build/obj/cmdline/apt-get.o(.gnu.linkonce.t.__tf10LogCleaner+0x1c):
> cannot handle R_PARISC_PCREL17F for pkgArchiveCleaner type_info function
> 
> that seems to be causing the "undefined" symbol messages.

No, it's caused *by* the undefined symbol.  If a symbol is undefined,
it won't have a stub hash entry.  If it doesn't have a stub hash entry
and it is either in a shared library or out of branch range, then
relocations to it can't be handled.  Thus the error message.

The case where a symbol is defined, and yet is unreachable, results in
a different warning (should be an error, but for some reason it seemed
to be non-fatal last time I encountered it) message which tells you to
recompile with -ffunction-sections.

We might want to get rid of the 'cannot handle R_PARISC_FOO' messages
in the undefined symbol case, as they are evidently misleading.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] booting on 712/60
Date: 18 Oct 2000 10:41:42 -0400
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To: Helge Deller <deller@gmx.de>
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Helge Deller <deller@gmx.de> writes:

> I'm seeing the same here. The kernel switches independend of your 
> kernel-settings (STI-Console - no STI-Console) to serial-console and just 
> puts some of it's error-messages to the STI-console. 
> If you don't have a nullmodem cable, you could try to ping/telnet your 
> parisc, to see if it's still alive.
> I currently don't know which change in CVS disallowed us to use just 
> STI-Console, but will try to figure out later today. 

Very strange, because it worked for me.  But perhaps I had a magical
combination of .config settings that eludes others.

Of course sticon and the keyboard driver are so broken that I have a
hard time imagining that anyone is actually using them for serious
work, so I don't feel a great urgency here.

I will look into it now if it's not already fixed.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: David Huggins-Daines <dhd@linuxcare.com>
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--=-=-=

David Huggins-Daines <dhd@linuxcare.com> writes:

> Helge Deller <deller@gmx.de> writes:
> 
> > I'm seeing the same here. The kernel switches independend of your 
> > kernel-settings (STI-Console - no STI-Console) to serial-console and just 
> > puts some of it's error-messages to the STI-console. 
> > If you don't have a nullmodem cable, you could try to ping/telnet your 
> > parisc, to see if it's still alive.
> > I currently don't know which change in CVS disallowed us to use just 
> > STI-Console, but will try to figure out later today. 
> 
> Very strange, because it worked for me.  But perhaps I had a magical
> combination of .config settings that eludes others.

Well, I can't reproduce this on my 712/80 with either sticon or stifb.
I've attached my .config for sticon.


--=-=-=
Content-Disposition: attachment; filename=config-sti-not-borken
Content-Description: config

#
# Automatically generated make config: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# General options
#
# CONFIG_SMP is not set
# CONFIG_KWDB is not set
CONFIG_GSC=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
# CONFIG_PCI_LBA is not set

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# General setup
#
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_BINFMT_SOM=y
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_BINFMT_JAVA is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_LOOP=y
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_LVM is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y

#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_NETLINK is not set
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_IP_ROUTER is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_ALIAS is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set

#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# SCSI support
#
CONFIG_SCSI=y

#
# SCSI support type (disk, tape, CDrom)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set

#
# SCSI low-level drivers
#
CONFIG_SCSI_LASI=y
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
CONFIG_LASI_82596=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_SB1000 is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
# CONFIG_DE4X5 is not set
CONFIG_TULIP=y
# CONFIG_DGRS is not set
# CONFIG_DM9102 is not set
# CONFIG_EEPRO100 is not set
# CONFIG_LNE390 is not set
# CONFIG_NE3210 is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_RTL8129 is not set
# CONFIG_8139TOO is not set
# CONFIG_SIS900 is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_ES3210 is not set
# CONFIG_EPIC100 is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_YELLOWFIN is not set
# CONFIG_ACENIC is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_HIL=y
CONFIG_SERIAL=y
# CONFIG_SERIAL_CONSOLE is not set
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_JOYSTICK is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_GENRTC is not set
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set

#
# Video For Linux
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_SYSV_FS_WRITE is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_MOUNT_SUBDIR is not set
# CONFIG_NCPFS_NDS_DOMAINS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_NLS is not set

#
# Sound Drivers
#
# CONFIG_SOUND is not set

#
# Console drivers
#

#
# Frame-buffer support
#
# CONFIG_FB is not set
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

--=-=-=


-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.

--=-=-=--


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Subject: Re: [parisc-linux] HP C110
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Xref: news.gmane.org gmane.linux.ports.parisc:8154

On Tue, Oct 17, 2000 at 03:32:28PM -0400, raunaq sushil pungaliya wrote:
> Hi
> I have an HP C110 (120Mhz, 256MB, 2.0 GB) I bought off the Internet. It 
> does not have an OS on it. Can I install linux on it? If yes, where do 
> I download the port? Thanks. 

should work on a C110.  get the installation image from
ftp://puffin.external.hp.com/pub/parisc/


-- 
Revolutions do not require corporate support.


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] /proc/interrupts
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Xref: news.gmane.org gmane.linux.ports.parisc:8156

Hi Helge!

Helge Deller wrote:
...
> 1. The until now used virtual IRQ's gets new numbers and increments in every 
> region by 32 for parisc32 and 64 for parisc64. The old IRQ regions 
> incremented by 256.

prumpf did something like this too.
It's better - but IMHO not "optimal".

I've been thinking about an "optimal" solution but haven't had a chance
to try it out. Here's my proposal:
o "invent" (yeah...I heard you, Carly! :^) a global "action" table.
o All IRQ allocation will get an "action" entry from the global table.
o And each IRQ region is a table of "action" pointers.
o "busy" IRQ region entries point to entries in the global "action" table.

"action" is a IRQ handler + arguments stuffed in a data structure.

Here are some examples of why I think this is "optimal":
o Older Workstations typically only need 10-20 "action" entries in
  2-4 IRQ regions.
o A500/C3000/J5000/L2000 might need about the same number of "action"
  entries but spread over 8 IRQ regions (4 CPU + 4 I/O Sapic).
o N-4000 might use over 60 entries in 22 IRQ regions!
  (12*4+8+5) That's 12 PCI Slots, 8 CPUs, and 5 built-in PCI devices
  spread over 8 CPU + 14 I/O Sapic.
o I don't know the limits of Superdome which was just announced.
  I've been asked about running linux on Superdome and my reply is
  first get it running on N-class (which isn't currently "in-plan"
  officially).

(Note: Even though today we only allocate one IRQ region for all CPUs,
in the future I'd like to see each CPU get it's own region.)

> 2. since we now shift by values of 5 (parisc32) or 6 (parisc64) bits, the 
> time needed to calculate the offsets may have changed. This needs to be 
> inspected.

I don't think this will be an issue.
I doubt a shift op takes longer (as measured in cycles) to shift more/less.


> 3. the new algorithm needs less memory than before.

yup - hypothetically by 4x or 8x. That's a good thing.

> By default I left the current behaviour in CVS, but you may activate the new 
> algorithm by changing the "#if 0" to "#if 1" in asm-parsic/irq.h and tell me 
> what you think.

That's cool...I'll enable it here for testing.
Remember - no news is good news :^)

thanks!
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: David Huggins-Daines <dhd@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] weird memory/file corruption errors building glibc and other things
Date: 18 Oct 2000 12:42:10 -0400
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Hi,

I get some very strange file corruption errors when building glibc on
the A180.  Specifically the dependency files end up with weird garbage
overwritten in them, and the glibc build fails like this:

ln /home/build/glibc-2.1.95/hppa-linux/obj/dummy.d /home/build/glibc-2.1.95/hppa-linux/obj/stdlib/lshift.d
make[3]: @@/build/glibc-2.1.95/hppa-linux/obj/dummy.d: Command not found
make[2]: *** [stdlib/subdir_lib] Error 127
make[2]: Leaving directory `/home/build/glibc-2.1.95/glibc-2.1.95'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/home/build/glibc-2.1.95/hppa-linux/obj'

This seems to be mostly random, because if I remove the offending
files and restart the build, it will usually succeed.

I also get lots of other random errors when building other packages.
Usually these end up triggering assertions in bash's malloc wrapper
code or causing make to segfault or bus error.  They are not
repeatable, and usually restarting the build makes them go away, at
least on the second or third try.

I don't know what other info I can provide.  Like I say, the errors
are random and seem to be caused by memory corruption, though there
are a few places where they tend to get "caught" more often than not.

I am not using swap at all either, because swapping does not work - I
get "invalid swap entry" errors on the console and my processes
segfault or bus-error more quickly than usual.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


From - Thu Nov 08 21:13:44 2018
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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] booting on 712/60
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James Waterhouse wrote:
> Hello,
> 	I just compiled a ramdisk using mondays cvs src for everything. I'm
> using the graphics console ramdisk file off the puffin.external.hp.com
> (ramdisk20000530-sticon.tgz) to make the ramdisk. Now when I got to boot
> it boots up until the point where the kernel says...

iirc, ramdisk20000530-sticon.tgz uses a "kluge" /dev/tty major/minor number.
I was reading old mail on this and the kluge to use a different
major/minor confused me. I was told this was no longer needed.
So you can use a newer/regular ramdisk.

Mathew Wilcox posted the "how-to" on ramdisk:
    http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/01-Jan/0078.html

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Subject: Re: problems with binutils and/or g++
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To: dhd@linuxcare.com (David Huggins-Daines)
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In-Reply-To: <87itqq2p7f.fsf@linuxcare.com> from "David Huggins-Daines" at Oct 18, 2000 10:34:12 am
X-Mailer: ELM [version 2.4 PL25]
Xref: news.gmane.org gmane.linux.ports.parisc:8159

> Randolph Chung <randolph@tausq.org> writes:
> 
> > Alan, for my curiosity, could you explain this particular line from g++'s 
> > output (from dhd's message)?
> > 
> > ../build/obj/cmdline/apt-get.o(.gnu.linkonce.t.__tf10LogCleaner+0x1c):
> > cannot handle R_PARISC_PCREL17F for pkgArchiveCleaner type_info function
> > 
> > that seems to be causing the "undefined" symbol messages.
> 
> No, it's caused *by* the undefined symbol.  If a symbol is undefined,
> it won't have a stub hash entry.  If it doesn't have a stub hash entry
> and it is either in a shared library or out of branch range, then
> relocations to it can't be handled.  Thus the error message.

I have observed problems with cc1plus regarding weak symbols that sometimes
don't get output.  For example, libg++ wouldn't build under i386 linux for
a number of weeks because of this.  Turning off math inlining (define
__NO_MATH_INLINES) would for some strange reason fix the problem.  The
problem was fixed a week or two ago, although it is not clear what patch
fixed the problem.  The problem didn't seem to occur for the pa port
under hpux.

On the otherhand, cc1plus has problems compiling tFile.cc in the libio
testsuite under hpux.  Although the compile does complete sucessfully
after a long time, it uses an enormous amount of memory.  This doesn't
happen under i386 linux.  I have determined the memory blow up occurs
in the gcse pass but haven't been able to find the cause as of yet.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Grant Grundler <grundler@cup.hp.com> writes:

> James Waterhouse wrote:
> > Hello,
> > 	I just compiled a ramdisk using mondays cvs src for everything. I'm
> > using the graphics console ramdisk file off the puffin.external.hp.com
> > (ramdisk20000530-sticon.tgz) to make the ramdisk. Now when I got to boot
> > it boots up until the point where the kernel says...
> 
> iirc, ramdisk20000530-sticon.tgz uses a "kluge" /dev/tty major/minor number.
> I was reading old mail on this and the kluge to use a different
> major/minor confused me. I was told this was no longer needed.
> So you can use a newer/regular ramdisk.

Ah!  Actually that triggers my memory.  You *must* append
'console=tty' to the kernel command line in order to use sticon (or
probably fbcon too for that matter), or else it will default to
serial.

Usually the PALO makefile handles this for you though.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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Am Wednesday 18 October 2000 19:04 schrieb David Huggins-Daines:
> Grant Grundler <grundler@cup.hp.com> writes:
> 
> > James Waterhouse wrote:
> > > Hello,
> > > 	I just compiled a ramdisk using mondays cvs src for everything. I'm
> > > using the graphics console ramdisk file off the puffin.external.hp.com
> > > (ramdisk20000530-sticon.tgz) to make the ramdisk. Now when I got to boot
> > > it boots up until the point where the kernel says...
> > 
> > iirc, ramdisk20000530-sticon.tgz uses a "kluge" /dev/tty major/minor 
number.
> > I was reading old mail on this and the kluge to use a different
> > major/minor confused me. I was told this was no longer needed.
> > So you can use a newer/regular ramdisk.
> 
> Ah!  Actually that triggers my memory.  You *must* append
> 'console=tty' to the kernel command line in order to use sticon (or
> probably fbcon too for that matter), or else it will default to
> serial.
> 
> Usually the PALO makefile handles this for you though.

Yeah, that was the problem ! I just found it too !
(And you need to enable getty in /etc/inittab).

Thanks,
Helge

> 
> -- 
> dhd@linuxcare.com, http://www.linuxcare.com/
> Linuxcare. Support for the revolution.
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] HP C110
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To: raunaq sushil pungaliya <rsp3@uakron.edu>
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Xref: news.gmane.org gmane.linux.ports.parisc:8162


raunaq sushil pungaliya writes...

> Hi
> I have an HP C110 (120Mhz, 256MB, 2.0 GB) I bought off the Internet. It 
> does not have an OS on it. Can I install linux on it? If yes, where do 
> I download the port? Thanks. 

Read,

http://www.thepuffingroup.com/parisc/software.html

HTH,

-- 
Matt Taggart
taggart@fc.hp.com



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From: James Waterhouse <james.waterhouse@videotron.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] booting 712/60 with STI console
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Alright, I recompiled my kernel using dhd's config but I'm still getting
no where. No when I boot I get something like this...

Console: switching to color STI console 80x30
searching for byte mode STI ROMs
STI ROM from PDC at f0080000
found potential STI ROM at f0080000
STI word mode ROM at f0080000, ignored
eth0: link ok.
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 192.168.1.99, my addressis
192.168.1.111
kmem_create: Forcing size word alignment - nfs_fh
Kernel panic: VFS: Unable to mount root fs on 01:00

And that's it. It is running cause I can ping it.
	Another thing is there anyone working on getting everthing to install
on a hard drive (self hoasting is what it is called?)? I noticed from
the palo docs that the only way to get everything on a hard drive is to
partition it and then install the kernel via palo from another comp (a
linux box). Is this still true? If not then I'd like to try and see if I
can get it working. Unless someone better qualified is working on it.

James

-- 
Can you discern the signs of the times? || www.danielrevelation.com
Do you see the storm fast approaching?  || www.sundaylaw.com
Is your future built on "The Rock"?     ||
www.bibleinfo.com/sc/toc_sc.html


From - Thu Nov 08 21:13:44 2018
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Subject: [Fwd: Re: [parisc-linux] booting on 712/60]
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David Huggins-Daines wrote:
> 
> David Huggins-Daines <dhd@linuxcare.com> writes:
> 
> > Helge Deller <deller@gmx.de> writes:
> >
> > > I'm seeing the same here. The kernel switches independend of your
> > > kernel-settings (STI-Console - no STI-Console) to serial-console and just
> > > puts some of it's error-messages to the STI-console.
> > > If you don't have a nullmodem cable, you could try to ping/telnet your
> > > parisc, to see if it's still alive.
> > > I currently don't know which change in CVS disallowed us to use just
> > > STI-Console, but will try to figure out later today.
> >
> > Very strange, because it worked for me.  But perhaps I had a magical
> > combination of .config settings that eludes others.
> 
> Well, I can't reproduce this on my 712/80 with either sticon or stifb.
> I've attached my .config for sticon.
> 
>   ------------------------------------------------------------------------
>                                Name: config-sti-not-borken
>    config-sti-not-borken       Type: Plain Text (text/plain)
>                         Description: config
> 
>   ------------------------------------------------------------------------

After looking at dhd's config I think my problem may be just due to
stupidity on my part. I don't know anything about hp's and have just had
my hp for about three days now. Knowing nothing about hp's I just used
the default config for linux and that is prob where the problem is.
Anyway I will compile a new kernel and get back to you on this.

Thanks,
James

-- 
Can you discern the signs of the times? || www.danielrevelation.com
Do you see the storm fast approaching?  || www.sundaylaw.com
Is your future built on "The Rock"?     ||
www.bibleinfo.com/sc/toc_sc.html


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Hello,
Is the ramdisk at 
ftp://puffin.external.hp.com/pub/parisc/binaries/ramdisks/ramdisk.bin-20000803
useable? I'm just wondering cause in the recipe we are told to use the
older ramdisks. Also this ramdisk doe not say wether it is for serial or
graphics console. But since I read Grants reply it would seem that it
does not matter. Is this true? Is this a useable ramdisk? What can
anyone tell me about it?

thanks,
James


Grant Grundler wrote:
> 
> James Waterhouse wrote:
> > Hello,
> >       I just compiled a ramdisk using mondays cvs src for everything. I'm
> > using the graphics console ramdisk file off the puffin.external.hp.com
> > (ramdisk20000530-sticon.tgz) to make the ramdisk. Now when I got to boot
> > it boots up until the point where the kernel says...
> 
> iirc, ramdisk20000530-sticon.tgz uses a "kluge" /dev/tty major/minor number.
> I was reading old mail on this and the kluge to use a different
> major/minor confused me. I was told this was no longer needed.
> So you can use a newer/regular ramdisk.
> 
> Mathew Wilcox posted the "how-to" on ramdisk:
>     http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/01-Jan/0078.html
> 
> grant
> 
> Grant Grundler
> Unix Systems Enablement Lab
> +1.408.447.7253

-- 
Can you discern the signs of the times? || www.danielrevelation.com
Do you see the storm fast approaching?  || www.sundaylaw.com
Is your future built on "The Rock"?     ||
www.bibleinfo.com/sc/toc_sc.html


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From: Phil Schwan <pschwan@thepuffingroup.com>
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Subject: Re: [parisc-linux] binutils from cvs broke
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On Apr 07, Justin Maurer wrote:
> creating libtool
> configure: error: GAS does not support target CPU i386
> Configure in /home/parisc/cvs/binutils/gas failed, exiting.
> 
> the command i used to run configure with was:
> $ ./configure --prefix=/home/parisc/hppa-test/

You probably want to be doing
"./configure --prefix=/home/parisc/hppa-test --target=hppa-linux --with-gas"
unless I miss my guess.

-Phil

------------------------------------------------------------------
"In film you will find four basic story lines. Man versus man, man
versus nature, nature versus nature, and dog versus vampire."
        - Steven Spielberg


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David Huggins-Daines wrote:
> 
> Ah!  Actually that triggers my memory.  You *must* append
> 'console=tty' to the kernel command line in order to use sticon (or
> probably fbcon too for that matter), or else it will default to
> serial.
> 
> Usually the PALO makefile handles this for you though.

So I should not have to do anything other then what I have been doing
which is just "make palo" right? (I have been following the "recipe"
given here ftp://puffin.external.hp.com/pub/parisc/debug/recipe.x)

> 
> --
> dhd@linuxcare.com, http://www.linuxcare.com/
> Linuxcare. Support for the revolution.
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
Can you discern the signs of the times? || www.danielrevelation.com
Do you see the storm fast approaching?  || www.sundaylaw.com
Is your future built on "The Rock"?     ||
www.bibleinfo.com/sc/toc_sc.html


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To: Helge Deller <deller@gmx.de>,
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Hello Helge,

Helge Deller wrote:
> 
> Am Wednesday 18 October 2000 19:04 schrieb David Huggins-Daines:
> > Grant Grundler <grundler@cup.hp.com> writes:
> >
> > > James Waterhouse wrote:
> > > > Hello,
> > > >   I just compiled a ramdisk using mondays cvs src for everything. I'm
> > > > using the graphics console ramdisk file off the puffin.external.hp.com
> > > > (ramdisk20000530-sticon.tgz) to make the ramdisk. Now when I got to boot
> > > > it boots up until the point where the kernel says...
> > >
> > > iirc, ramdisk20000530-sticon.tgz uses a "kluge" /dev/tty major/minor
> number.
> > > I was reading old mail on this and the kluge to use a different
> > > major/minor confused me. I was told this was no longer needed.
> > > So you can use a newer/regular ramdisk.
> >
> > Ah!  Actually that triggers my memory.  You *must* append
> > 'console=tty' to the kernel command line in order to use sticon (or
> > probably fbcon too for that matter), or else it will default to
> > serial.
> >
> > Usually the PALO makefile handles this for you though.
> 
> Yeah, that was the problem ! I just found it too !
> (And you need to enable getty in /etc/inittab).

So what did you do to get it to work? You gave 'console=tty' to the
kernel command line? Where is it that you give the command line? Do you
have to modify a make file or what? Or are you just running palo/palo
with args as given in the palo doc? Which ramdisk did you have to modify
inittab in?

Jame




> 
> Thanks,
> Helge
> 
> >
> > --
> > dhd@linuxcare.com, http://www.linuxcare.com/
> > Linuxcare. Support for the revolution.
> >
> > ---------------------------------------------------------------------------
> > To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> > `unsubscribe' as the subject.
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
Can you discern the signs of the times? || www.danielrevelation.com
Do you see the storm fast approaching?  || www.sundaylaw.com
Is your future built on "The Rock"?     ||
www.bibleinfo.com/sc/toc_sc.html


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From: Jim Buttafuoco <jim@buttafuoco.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] netboot a 9000/710
Date: Wed, 18 Oct 2000 20:37:59 -0400
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I have 2 9000/710 diskless workstations that seem to be working.  Now I
would like to get them to netboot.  I have downloaded rbootd and
compilied and configured (images are in /u03/hp/rbootd) it.  I have also
downloaded the latest Image and nfsroot files.

The rbootd seems to get a request (debug output at end of email) but the
systems doesn't see any boot devices after the "search" is complete.
What am I doing wrong,  is the procedure documented anywhere???

Thanks
Jim

>cat /etc/rbootd.conf
08:00:09:25:dd:7b            LINUX

>ls /u03/hp/rbootd/
LINUX            <<--- This is the kernel image I downloaded.  I didn't
know what else to do with it...


DEBUG OUTPUT
----------------------------------------------------
<<< 17:23:11.063816   Addr: 08:00:09:25:dd:7b   Intf: eth0
        802.2 LLC: DSAP:f8 SSAP:f8 CTRL:300
        HP Ext:    DXSAP:608 SXSAP:609
        Boot Request: (Send Server ID)
                RetCode:0 SeqNo:0 SessID:ffff Vers:2
                Machine Type: HPS700
                File Name (0): <>

<<< 17:26:06.884908   Addr: 08:00:09:25:dd:7b   Intf: eth0
        802.2 LLC: DSAP:f8 SSAP:f8 CTRL:300
        HP Ext:    DXSAP:608 SXSAP:609
        Boot Request: (Send Server ID)
                RetCode:0 SeqNo:0 SessID:ffff Vers:2
                Machine Type: HPS700
                File Name (0): <>




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From: "Thomas Marteau" <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Booting 712 STI and nfs
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Hi all,

We managed to boot on the STI-console with a 712/80 in changing the =
parameters in inittab and in securetty (if you want to login as root).=20

> cat inittab (! just the interesting thing!)
# /sbin/getty invocations for the runlevels.
#
# The "id" field MUST be the same as the last
# characters of the device (after "tty").
#
# Format:
#  <id>:<runlevels>:<action>:<process>
1:2345:respawn:/sbin/getty 38400 tty1
#2:23:respawn:/sbin/getty 38400 tty2
#3:23:respawn:/sbin/getty 38400 tty3
#4:23:respawn:/sbin/getty 38400 tty4
#5:23:respawn:/sbin/getty 38400 tty5
#6:23:respawn:/sbin/getty 38400 tty6

=20

> cat securetty
# /etc/securetty: list of terminals on which root is allowed to login.
# See securetty(5) and login(1).
ttyS0
tty1

Also, in order to boot with the STI console, you need to have the module =
for STI-console and not for serial console support...

But, we have troubles with the rpc that print somestimes
nfs: server X.X.X.165 not responding, still trying
nfs: server X.X.X.165 OK
nfs: server X.X.X.165 not responding, still trying
nfs: server X.X.X.165 OK
nfs: server X.X.X.165 not responding, still trying
nfs: server X.X.X.165 OK
We don't understand where comes from the problem!!

Bye,
ESIEE Port Team

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2614.3500" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi all,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>We managed to boot on the STI-console =
with a 712/80=20
in changing the parameters in inittab and in securetty (if you want to =
login as=20
root). </FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>&gt; cat inittab (! just the =
interesting=20
thing!)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2># /sbin/getty invocations for the=20
runlevels.<BR>#<BR># The "id" field MUST be the same as the last<BR># =
characters=20
of the device (after "tty").<BR>#<BR># Format:<BR>#&nbsp;=20
&lt;id&gt;:&lt;runlevels&gt;:&lt;action&gt;:&lt;process&gt;<BR>1:2345:res=
pawn:/sbin/getty=20
38400 tty1<BR>#2:23:respawn:/sbin/getty 38400 =
tty2<BR>#3:23:respawn:/sbin/getty=20
38400 tty3<BR>#4:23:respawn:/sbin/getty 38400 =
tty4<BR>#5:23:respawn:/sbin/getty=20
38400 tty5<BR>#6:23:respawn:/sbin/getty 38400 tty6</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>&gt; cat securetty</FONT></DIV>
<DIV><FONT face=3DArial size=3D2># /etc/securetty: list of terminals on =
which root=20
is allowed to login.<BR># See securetty(5) and=20
login(1).<BR>ttyS0<BR>tty1</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Also, in order to boot with the STI =
console, you=20
need to have the module for STI-console and not for serial console=20
support...</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>But, we have troubles with the rpc that =
print=20
somestimes</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>nfs: server X.X.X.165 not responding, =
still=20
trying</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>nfs: server X.X.X.165 OK</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>
<DIV><FONT face=3DArial size=3D2>nfs: server X.X.X.165 not responding, =
still=20
trying</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>nfs: server X.X.X.165 OK</FONT></DIV>
<DIV>
<DIV><FONT face=3DArial size=3D2>nfs: server X.X.X.165 not responding, =
still=20
trying</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>nfs: server X.X.X.165 OK</FONT></DIV>
<DIV>We don't understand where comes from the problem!!</DIV>
<DIV>&nbsp;</DIV>
<DIV>Bye,</DIV>
<DIV>ESIEE Port Team</DIV></DIV></FONT></DIV></BODY></HTML>

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] booting on 712/60
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Am Wednesday 18 October 2000 23:13 schrieb James Waterhouse:
> Hello Helge,
> 
> Helge Deller wrote:
> > 
> > Am Wednesday 18 October 2000 19:04 schrieb David Huggins-Daines:
> > > Grant Grundler <grundler@cup.hp.com> writes:
> > >
> > > > James Waterhouse wrote:
> > > > > Hello,
> > > > >   I just compiled a ramdisk using mondays cvs src for everything. 
I'm
> > > > > using the graphics console ramdisk file off the 
puffin.external.hp.com
> > > > > (ramdisk20000530-sticon.tgz) to make the ramdisk. Now when I got to 
boot
> > > > > it boots up until the point where the kernel says...
> > > >
> > > > iirc, ramdisk20000530-sticon.tgz uses a "kluge" /dev/tty major/minor
> > number.
> > > > I was reading old mail on this and the kluge to use a different
> > > > major/minor confused me. I was told this was no longer needed.
> > > > So you can use a newer/regular ramdisk.
> > >
> > > Ah!  Actually that triggers my memory.  You *must* append
> > > 'console=tty' to the kernel command line in order to use sticon (or
> > > probably fbcon too for that matter), or else it will default to
> > > serial.
> > >
> > > Usually the PALO makefile handles this for you though.
> > 
> > Yeah, that was the problem ! I just found it too !
> > (And you need to enable getty in /etc/inittab).
> 
> So what did you do to get it to work? You gave 'console=tty' to the
> kernel command line? Where is it that you give the command line? Do you
> have to modify a make file or what? Or are you just running palo/palo
> with args as given in the palo doc? Which ramdisk did you have to modify
> inittab in?
> 
> Jame
> 

Hi James,

Here are some hints:

1. I'm using no ramdisk, but the nfsroot-20001009.tgz, which you can get from 
ftp://puffin.external.hp.com/pub/parisc/binaries/nfsroot/
This has the great advantage, that you can modify all configuration files 
without the need to build a new kernel for every change - but you will need 
to setup one of your machines as nfs-server and export that directory.
More than that, the ramdisks on puffin.external.hp.com are mostly outdated !

2. Take a look at the documention in palo/Makefile. 
There I modified the NFSROOT = 10.10.10.2 to
NFSROOT = 192.168.100.100:/tftpboot/nfsroot    with 192.168.100.100 as the 
IP-address of my local nfs-server and the contents of nfsroot-20001009.tgz in 
/tftpboot/nfsroot.

3. Follow the hints from Thomas Marteau (copied from his mail):

>cat /etc/inittab (! just the interesting thing!)
# /sbin/getty invocations for the runlevels.
#
# The "id" field MUST be the same as the last
# characters of the device (after "tty").
#
# Format:
#  <id>:<runlevels>:<action>:<process>
1:2345:respawn:/sbin/getty 38400 tty1
#2:23:respawn:/sbin/getty 38400 tty2
#3:23:respawn:/sbin/getty 38400 tty3
#4:23:respawn:/sbin/getty 38400 tty4
#5:23:respawn:/sbin/getty 38400 tty5
#6:23:respawn:/sbin/getty 38400 tty6

>cat /etc/securetty
# /etc/securetty: list of terminals on which root is allowed to login.
# See securetty(5) and login(1).
ttyS0
tty1


Helge.
	


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Hi all,

    Since we have the STI, we have produced a file system quite =
interesting for the 712. You can
have a network support till you configure the file.conf like resolv... =
Also, we have noticed that
the sti on B180 does not work well, it look like it can not find the =
rom. But we have to work on...

To download the archives go there:
http://www.esiee.fr/~djoudim/code/suitable.html

It is incredible what can do a 712 with it!

Bye,
ESIEE Port Team

------=_NextPart_000_0009_01C05307.27222700
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2614.3500" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi all,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;&nbsp;&nbsp; Since we have the =
STI, we have=20
produced a file system quite interesting for the 712. You =
can</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>have a network support till you =
configure the=20
file.conf like resolv... Also, we have noticed that</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>the sti on B180 does not work well, it =
look like it=20
can not find the rom. But we have to work on...</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>To download the archives go =
there:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2><A=20
href=3D"http://www.esiee.fr/~djoudim/code/suitable.html">http://www.esiee=
.fr/~djoudim/code/suitable.html</A></FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>It is incredible what can do a 712 with =

it!</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Bye,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>
<DIV>ESIEE Port Team</DIV></FONT></DIV></BODY></HTML>

------=_NextPart_000_0009_01C05307.27222700--


From - Thu Nov 08 21:13:45 2018
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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Bug in shared libraries
Date: Fri, 20 Oct 2000 08:08:48 -0600 (MDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:8173


I've been chasing a bug for the last few days that I believe is
responsible for a variety of flaky VM behaviour.  It turns out that we
were missing some code in do_page_fault() that is supposed to check access
permissions before calling handle_mm_fault().  This leads to problems with
reference counts on pages being wrong, which leads to a variety of bad
problems.

I checked in new code (in arch/parisc/mm/fault.c) to fix the problem,
however, I had to enclose the actual permission check inside an #ifdef
CHECK_PERMISSIONS, because the fix cannot be enabled yet.  The problem is
that at least one shared library is writing into a read only region
(routine _dl_start in /lib/ld-2.1.94.so).  I'm afraid this looks like part
of the dynamic linker, which means that just about every command is
potentially broken.  I'm hoping that we only have to fix a few shared
libraries, and not every command, to get around this problem.  Basically,
we need to be able to successfully boot with the #ifdef CHECK_PERMISSIONS
in fault.c removed.

I'm hoping that someone who knows more about the shared library builds
can look into fixing this.

John Marvin
jsm@fc.hp.com


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FYI,

Here is a partial dump from ld-2.1.94.so. The instruction at offset 3c60
below, "stw r6,0(r7)", is the first faulting instruction that is attempting
to write into its own .rodata section. Once this is fixed, there may
be others.

John

00003c00 <_dl_start+0x4c0>:
    3c00:       0c 60 10 97     ldw  0(sr0,r3),r23
    3c04:       2a 60 00 00     addil 0,r19,%r1
    3c08:       48 21 00 78     ldw 3c(sr0,r1),r1
    3c0c:       6b c1 3f 99     stw r1,-34(sr0,sp)
    3c10:       6b c0 3f 91     stw r0,-38(sr0,sp)
    3c14:       34 1a 00 04     ldi 2,r26
    3c18:       2a 60 00 00     addil 0,r19,%r1
    3c1c:       48 38 00 80     ldw 40(sr0,r1),r24
    3c20:       e8 45 18 74     b,l f860 <_dl_sysdep_output>,rp
    3c24:       0a f5 0a 17     add,l r21,r23,r23
    3c28:       08 04 02 53     copy r4,r19
    3c2c:       4b d4 3e a9     ldw -ac(sr0,sp),r20
    3c30:       0c 70 10 98     ldw  8(sr0,r3),r24
    3c34:       0e 90 10 94     ldw  8(sr0,r20),r20
    3c38:       08 07 02 5a     copy r7,r26
    3c3c:       0b 14 b8 80     cmpclr,>> r20,r24,r0
    3c40:       08 14 02 58     copy r20,r24
    3c44:       e8 48 0a 3c     b,l 15168 <memcpy>,rp
    3c48:       08 06 02 59     copy r6,r25
    3c4c:       e8 00 00 20     b,l 3c64 <_dl_start+0x524>,r0
    3c50:       08 04 02 53     copy r4,r19
    3c54:       e8 44 1d 8c     b,l db20 <_dl_reloc_bad_type>,rp
    3c58:       34 18 00 00     ldi 0,r24
    3c5c:       08 04 02 53     copy r4,r19
    3c60:       0c e6 12 80     stw  r6,0(sr0,r7)
    3c64:       34 a5 00 18     ldo c(r5),r5
    3c68:       88 a9 bc 27     cmpb,>>,n r9,r5,3a80 <_dl_start+0x340>
    3c6c:       0c a8 10 97     ldw  4(sr0,r5),r23
    3c70:       e8 00 03 f8     b,l 3e74 <_dl_start+0x734>,r0
    3c74:       35 6b 00 02     ldo 1(r11),r11
    3c78:       80 a9 a3 e2     cmpb,<<=,n r9,r5,3e70 <_dl_start+0x730>
    3c7c:       0d 00 10 95     ldw  0(sr0,r8),r21
    3c80:       0c a0 10 94     ldw  0(sr0,r5),r20
    3c84:       0a 95 0a 07     add,l r21,r20,r7
    3c88:       0c a8 10 95     ldw  4(sr0,r5),r21
    3c8c:       d2 b4 1a e8     extrw,u r21,23,24,r20
    3c90:       d6 94 08 84     depw,z r20,27,28,r20
    3c94:       0a 8a 0a 14     add,l r10,r20,r20


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From: David Huggins-Daines <dhd@linuxcare.com>
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Subject: Re: Bug in shared libraries
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John Marvin <jsm@udlkern.fc.hp.com> writes:

> Here is a partial dump from ld-2.1.94.so. The instruction at offset 3c60
> below, "stw r6,0(r7)", is the first faulting instruction that is attempting
> to write into its own .rodata section. Once this is fixed, there may
> be others.

Yes, I know what this is now.  The problem is that the compiler places
static PLABELs in .rodata instead of .data.  This doesn't cause any
problems for static executables since all the relocations on these
PLABELs will be resolved in the final link.  However when building
shared objects they will get emitted as dynamic relocations.

That's actually not supposed to make the dynamic linker crash though,
because the linker will set a flag (and create a dynamic tag) to
indicate that the read-only segments in the object should be remapped
read-write during relocation processing.

I wonder if the problem is actually that the call to mprotect() that
ld.so makes in order to remap its text segment read-write is failing,
or not having the desired effect.

Still it is wrong to be putting relocatable stuff in the text segment
(duh :) I'd meant to fix this eventually but it never affected us
before, so I sort of ignored it.  Too bad we didn't have a working
page fault handler earlier... it would really have been nice to catch
it early.

I guess I will "fix" the compiler to put them in .data instead for the
ELF32 target.

-- 
dhd@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] __FUNCTION__ work?
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Hi all,
Can anyone tell me if __FUNCTION__ works for the 32-bit tool chain?


I'm quite certain it's not working for the 64-bit toolchain.
Alan (Modra), can you fix that?

The output I get from:
	printk(__FUNCTION__ "() starts\n");

is
	() starts

It's not a disaster, just slightly annoying when debug code
doesn't tell me everything I expect. And I know this worked
before in the 32-bit toolchain (and probably still does).

thanks,
grant


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From: Alex deVries <adevries@redhat.com>
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Subject: [parisc-linux] Some things to do...
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I just thought I'd revive things by spitting out a few things on the grand
to do list; I'm sure I'm missing things.  Please pipe up.

1. Fixing binutils

There's problems with binutils and linking.  I can't tell you precisely
what because I don't understnad it myself.  I know we need to resolve the
ELF situation.  Ulrich, comments on this?

2. Kernel stuff

Even the basic kernel building needs a lot of help; doing a 'make dep'
shouldn't build the whhole thing.  A non-kernel aware person might have
fun with that.

There's of course MMU and interrupt stuff, but we need the binutils sorted
out first I suspect.

3. Renaming.

I suspect cygnus isn't going to like this a whole lot, but really the
*true* name of the CPU is PA RISC, not HPPA.  This really isn't open for
debate anymore.  So we either need aliases written into autoconf scripts,
and possibly might need other changes to binutils and egcs.  Comments on
how to do this from Cygnus would be appreciated.

4. The bootloader.

We need to get more into making the bootloader interactive, and cleaning
up the source a bit.

5. Fixing the cross compiler packaging.

This is another easy one.  The current binary rpms are somewhat broken in
where they leave files, so that really needs to be redone.  Justin's got
some debian packages for those of you inclined that way.

So, step right up...

- Alex
-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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From: Ulrich Drepper <drepper@redhat.com>
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Subject: Re: [parisc-linux] __FUNCTION__ work?
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Grant Grundler <grundler@cup.hp.com> writes:

> The output I get from:
> 	printk(__FUNCTION__ "() starts\n");

RTFM.  __FUNCTION__ and __func__ are identifiers, not string literals.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] __FUNCTION__ work?
Date: Sat, 21 Oct 2000 11:34:36 -0700
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To: drepper@cygnus.com (Ulrich Drepper)
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Ulrich Drepper wrote:
> Grant Grundler <grundler@cup.hp.com> writes:
> 
> > The output I get from:
> > 	printk(__FUNCTION__ "() starts\n");
> 
> RTFM.  __FUNCTION__ and __func__ are identifiers, not string literals.

Ok. I'll update my usage. tnx.

I tried to find the manual (still looking) but found some other
interesting links instead:

http://gcc.gnu.org/ml/gcc-patches/1999-10n/msg00281.html
    Jason Merrill <jason at cygnus dot com> wrote:
    | In g++, __FUNCTION__ is a variable, not a string literal.
    | That change was necessary to support templates.

http://agnes.dida.physik.uni-essen.de/~janjaap/mingw32/gcc-announce.html
(gcc 2.8.0 release notes dated Wed, 14 Jan 98 05:59:05 EST)
    Richard Kenner wrote:
    | __FUNCTION__ and __PRETTY_FUNCTION__ are now treated as variables by
    | the parser; previously they were treated as string constants.  So code
    | like  `printf (__FUNCTION__ ": foo")' must be rewritten to `printf
    | ("%s: foo", __FUNCTION__)'.  This is necessary for templates.

I've been writing 'C' code since about 1985...old habits die hard. :^)

thanks,
grant

> -- 
> ---------------.                          ,-.   1325 Chesapeake Terrace
> Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
> Red Hat          `--' drepper at redhat.com   `------------------------

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] parisc asm questions
Date: Sat, 21 Oct 2000 13:39:50 -0700
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would someone please enlighten me about why this is happening?

i have a simple fetch-add asm loop:

/* arg0 is a pointer to a buffer, %arg1 is the length, %r4 == %arg1>>2 */
$loop:
	ldws,ma		4(%arg0), %r3
	addc		%ret0, %r3, %ret0
	addib,<>	-1, %r4, $loop
	addi		-4, %arg1, %arg1

i notice that the sum returned is sometimes off by a certain amount from
what i was expecting.  while i was tracing this down, i added a line to 
the loop so that it's:

$loop:
	add		%r0, %r3, %r3	/* isn't this equivalent to a nop? */
	ldws,ma		4(%arg0), %r3
	addc		%ret0, %r3, %ret0
	addib,<>	-1, %r4, $loop
	addi		-4, %arg1, %arg1

and i get fairly different behavior. I think I'm not understanding how
the carry bit gets updated or something. any hints will be much appreciated.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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Subject: Re: parisc asm questions
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Randolph,

The add instruction doesn't use the carry bit as input, but it does
produce a carry bit.  The addc instruction both uses and produces a carry
bit.  The addi instruction also does not use the carry bit as input, but
it does produce a carry bit (I use the term "carry bit", although the
architecture has a set of "carry/borrow bits", but in terms of the
instructions referenced here, only one of the bits matters, so I refer to
it as the carry bit).

So I see a variety of problems with your examples:

1) Your first loop uses addc, which means that it will use the carry bit,
which may be in an undefined state the first time you execute it, if you
have done nothing to set it the way you want.  You can either use an add
instruction before the loop to do the first add, or you can do an "add
%r0,%r0,%r0" to clear the carry bit before the loop.

2) The addi in the loop messes with the carry bit, which you don't want.
In most cases it will set the carry bit, unless %arg1 is less than 4.
The normal convention would be to use ldo -4(%arg1),%arg1 instead.
The addib instruction is ok, since it does not use or set the carry
bit.

3) In the second loop the add instruction is not a noop, since it has the
effect of clearing the carry bit.


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From: Randolph Chung <randolph@tausq.org>
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> The add instruction doesn't use the carry bit as input, but it does
> produce a carry bit.  The addc instruction both uses and produces a carry
[...]

Thanks for the explanation. With some help from Grant on IRC I managed
to figure this out as well.

Another question though -- it looks like I cannot use r4 as a scratch
register as it messes with the stack. From looking at the documentation
(linux/Documentation/parisc/registers) it just says that the GRs are
used "as specified by ABI". Is this ABI documented some place? I did
look at the PDC documentation which lists some of the registers, but I
don't see anything about GR4.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [patch] linux/include/asm-parisc/checksum.h
Date: Sun, 22 Oct 2000 14:21:39 -0700
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After all the assembly questions yesterday, I offer you my first patch
:-)

here's a patch to implement ip_fast_csum in
include/asm-parisc/checksum.h. In my simple tests it's about 4x faster
than the original implementation.

I've also been working on the other checksum routines (csum_partial and
friends) but they are not ready yet.

Any suggestions on how to further optimize this will be much
appreciated.

randolph

Index: checksum.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/checksum.h,v
retrieving revision 1.8
diff -u -r1.8 checksum.h
--- checksum.h	2000/08/04 17:29:12	1.8
+++ checksum.h	2000/10/22 21:16:30
@@ -52,12 +52,46 @@
 }
 
 /*
- *	FIXME: Needs to be optimized for IP headers,
- *	which always checksum on 4 octet boundaries.
+ *	Optimized for IP headers, which always checksum on 4 octet boundaries.
+ *
+ *	Written by Randolph Chung <tausq@debian.org>
  */
 static inline unsigned short ip_fast_csum(unsigned char * iph,
 					  unsigned int ihl) {
-	return ~csum_partial (iph, ihl << 2, 0);
+	unsigned int sum;
+
+
+	__asm__ __volatile__ ("
+	ldws,ma		4(%1), %0
+	addi		-4, %2, %2
+	comib,>=	0, %2, 2f
+	
+	ldws,ma		4(%1), %%r19
+	add		%0, %%r19, %0
+	ldws,ma		4(%1), %%r19
+	addc		%0, %%r19, %0
+	ldws,ma		4(%1), %%r19
+	addc		%0, %%r19, %0
+1:	ldws,ma		4(%1), %%r19
+	addib,<>	-1, %2, 1b
+	addc		%0, %%r19, %0
+	addc		%0, %%r0, %0
+
+	zdepi		-1, 31, 16, %%r19
+	and		%0, %%r19, %%r20
+	extru		%0, 15, 16, %%r21
+	add		%%r20, %%r21, %0
+	and		%0, %%r19, %%r20
+	extru		%0, 15, 16, %%r21
+	add		%%r20, %%r21, %0
+	subi		-1, %0, %0
+2:
+	"
+	: "=r" (sum), "=r" (iph), "=r" (ihl)
+	: "1" (iph), "2" (ihl)
+	: "r19", "r20", "r21" );
+
+	return(sum);
 }
 
 /*

-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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From: "Servio E. Cabrera" <servio.cabrera@mobilix.dk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] CD image does not recognize the SCSI Hard Drives! on C110
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-----BEGIN PGP SIGNED MESSAGE-----


Hello:

I have booted the CD image on several machines and does not recognize
the SCSI HarD drive, the machine I have a HP9000 s700 / c110.
I perform a "fdisk /dev/sda" and it says "unable to open /dev/sda" I
have also done this:
#for q in /dev/sd* /dev/hd*
do
fdisk $q
done

I got unable to open .... for the all those device files

REgards


servio

- -

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Version: PGPfreeware 6.5.3 for non-commercial use <http://www.pgp.com>

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Subject: [parisc-linux] Paging now works
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Xref: news.gmane.org gmane.linux.ports.parisc:8185

FYI,

My latest checkin fixes a variety of VM bugs, so you should probably
cvs update. In addition, paging now works reliably, so you can go
ahead and enable swap if you want to.

John


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] CD image does not recognize the SCSI Hard Drives! on C110
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To: "Servio E. Cabrera" <servio.cabrera@mobilix.dk>
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"Servio E. Cabrera" wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> 
> 
> Hello:
> 
> I have booted the CD image on several machines and does not recognize
> the SCSI HarD drive, the machine I have a HP9000 s700 / c110.

Hi Servio,
Just to be clear, is this the CD Image v0.1 dated August 4th, 2000?
(this was made especially for San Jose Linux World Expo)

If so, then you didn't see the printing on the CD we handed out:
 "Bootable on HP 712, A180, B180 and other systems"

"other" mostly means very old workstations (715/735/etc) and
excludes systems with an I/O MMU (any C, J, L, or N-class for example).

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: A console and a term
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"Thomas Marteau" wrote:
> Hi Grant,
> 
>     Just a word to tell you that we have now a console on STI and a term on
> our serial port of the 712. It is quite useful to debug the stdout.

Oh good! I was wondering how you guys were doing with the previous
round of advice...let me take a first whack at your following questions.
I've cc'd parisc-linux since I'll probably need to ne corrected. :^)

>     We have copied a terminfo directory into /usr/share. After that we type
> In the term: export TERM=vt100
> In the console: We have not found the good term yet because our screen is an
> A4032A and no term work with. If you have any hints...

I think TERM=linux was the right setting...console terminal emulation
may need fixing too though. I don't know.

> 
>     Also, we are interested in the keyboard and STI drivers but we do not
> have many docs on the subject. So, if you know a URL...

PS/2 keyboard is the standard driver - I'm sure a few of the keys are
mapped differently. I don't have a table of the scancodes. I suggest
looking at mklinux to see how they handle it.

STI document is published on
	http://www.thepuffingroup.com/parisc/documentation.html

I only have a vague idea of what STI really is and what it supports.


>     It is fun to view TOP and VI work. Finally, can you tell us what kind of
> technical feedback you'd like from us. Would you be interested in our
> precise advancement or is the website enough for that (we are planning to
> integrate a sort of Logfile page with the history of all the events which
> occured since the beginning)?

Well, whenever you change any kernel sources and make something more
useful, please post the patch to parisc-linux mailing list. Or post a
URL which points to the patch. Note that we really want to only
fix stuff in arch/parisc* and include/asm-parisc* if we can help it.
(The issue is we'd like to merge into Linus' tree this year and don't
want generic code changes to hold up the process.)

If it gets to be a problem (too many good patches), you will get write
access to the CVS repository.

cheers,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Ulrich Drepper <drepper@cygnus.com>
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Subject: Re: [parisc-linux] Some things to do...
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Alex deVries <adevries@redhat.com> writes:

> 1. Fixing binutils
> 
> There's problems with binutils and linking.  I can't tell you precisely
> what because I don't understnad it myself.  I know we need to resolve the
> ELF situation.  Ulrich, comments on this?

I certainly need this ASAP but won't make a comment until I've seen
the code.  This can't happen until after Apr 25th (I'll be gone next
week).

> [name aliases...]
> Comments on how to do this from Cygnus would be appreciated.

Talk to Ben Elliston <bje@cygnus.com> the autoconf maintainer.

-- 
---------------.      drepper at gnu.org  ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Cygnus Solutions `--' drepper at cygnus.com   `------------------------


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From: Jim Buttafuoco <jim@buttafuoco.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Boot problems with CD image
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Xref: news.gmane.org gmane.linux.ports.parisc:8189

Hi,

    I downloaded the CD image from the FTP site in order to boot my 710
system.  It failed, attached is the output from the serial port.

Any ideas????

Thanks
Jim



.

Booting from:     scsi.0.0     PLEXTOR CD-ROM PX-12TS

Hard booted.
palo ipl bame@noam Fri Aug  4 18:36:35 MDT 2000
0/vmlinux 2349352 bytes @ 0x6e8800
0/palo-cmdline '0/vmlinux TERM=linux HOME=/ root=/dev/scd0'
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1511580 mediaptr 0x1000
Segment 1 load 00272000 size 132368 mediaptr 0x173000
Segment 2 load 00294000 size 86880 mediaptr 0x194000
Segment 3 load 002ac000 size 8192 mediaptr 0x1aa000
branching to kernel entry point 0x00100000
pdc_cons registered !
The Kernel has started...
Free memory starts at: 0xc02dc000
PALO command line: 'TERM=linux HOME=/ root=/dev/scd0'
PALO initrd 0-0
FP CCR was 0x0, will be set to 0xc0
model   00003000 00000481 00000000 00000000 77ed7152 00000000 00000004
0000000d 00000000
vers    00000003
CPUID vers 0 rev 0
CPU(s): 1 x PA7000 at 50.000000 MHz
Searching for devices in PDC firmware...  an older box...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0,
0x77, 0x0, 0x0
2. Bushmaster Core BA (11) at 0xf082f000, versions 0x6, 0x0, 0x70, 0x0,
0x0
3. Bushmaster Core SCSI (10) at 0xf0825000, versions 0x6, 0x0, 0x71,
0x0, 0x0
4. Bushmaster Core LAN (802.3) (10) at 0xf0826000, versions 0x6, 0x0,
0x72, 0x0, 0x0
5. Bushmaster Core HIL (10) at 0xf0821000, versions 0x6, 0x0, 0x73, 0x0,
0x0
6. Bushmaster Core RS-232 (10) at 0xf0823000, versions 0x6, 0x0, 0x75,
0x0, 0x0
7. Bushmaster Core RS-232 (10) at 0xf0822000, versions 0x6, 0x0, 0x75,
0x0, 0x0
8. Bushmaster Core Centronics (10) at 0xf0824000, versions 0x6, 0x0,
0x74, 0x0, 0x0
9. Bushmaster Audio (10) at 0xf1000000, versions 0x6, 0x0, 0x7a, 0x0,
0x0
10. Bushmaster (710) (0) at 0xfffbe000, versions 0x300, 0x0, 0x4, 0x0,
0x81
11. Bushmaster (1) at 0xfffbf000, versions 0x16, 0x0, 0x9, 0x0, 0x0
That's a total of 11 devices.
Linux version 2.3.99-pre8 (bame@noam) (gcc version 2.96 20000707
(experimental)) #24 Fri Aug 4 18:27:58 MDT 2000
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 8192
zone(0): 4096 pages.
zone(1): 4096 pages.
zone(2): 0 pages.
trap_init
error reading tod clock
Calibrating delay loop... 46.08 BogoMIPS
Memory: 29224k available
Dentry-cache hash table entries: 4096 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 8192 (order: 3, 32768 bytes)
kmem_create: Poisoning requested, but con given - bdev_cache
Inode-cache hash table entries: 2048 (order: 2, 16384 bytes)
kmem_create: Poisoning requested, but con given - inode_cache
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
request_irq(259, c01ec76c, 0x0, asp, c1fe4080)
^^^^^
          |--------This is where it stops...




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: Bug in shared libraries
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To: David Huggins-Daines <dhd@linuxcare.com>
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On 20 Oct 2000, David Huggins-Daines wrote:

> John Marvin <jsm@udlkern.fc.hp.com> writes:
> 
> > Here is a partial dump from ld-2.1.94.so. The instruction at offset 3c60
> > below, "stw r6,0(r7)", is the first faulting instruction that is attempting
> > to write into its own .rodata section. Once this is fixed, there may
> > be others.
> 
> Yes, I know what this is now.  The problem is that the compiler places
> static PLABELs in .rodata instead of .data.  This doesn't cause any
> problems for static executables since all the relocations on these
> PLABELs will be resolved in the final link.  However when building
> shared objects they will get emitted as dynamic relocations.
> 
> That's actually not supposed to make the dynamic linker crash though,
> because the linker will set a flag (and create a dynamic tag) to
> indicate that the read-only segments in the object should be remapped
> read-write during relocation processing.
> 
> I wonder if the problem is actually that the call to mprotect() that
> ld.so makes in order to remap its text segment read-write is failing,
> or not having the desired effect.

The problem occurs when ld.so is relocating itself, ie. during
ELF_DYNAMIC_RELOCATE (&bootstrap_map, 0, 0).  I looked at fixing the
dynamic linker, but it's a complete pain to do as a lot of things aren't
set up at bootstrap stage.  _Much_ easier to fix the compiler as per the
following diff.  I've tested this on hppa-linux, and a newly built glibc
has no .rela.rodata in ld.so or libc.so.

Alan
-- 
Linuxcare.  Support for the Revolution.


Index: gcc/config/pa/pa-linux.h
===================================================================
RCS file: /home/cvs/parisc/gcc/gcc/config/pa/pa-linux.h,v
retrieving revision 1.12
diff -u -p -r1.12 pa-linux.h
--- pa-linux.h	2000/10/11 20:38:49	1.12
+++ pa-linux.h	2000/10/24 04:51:08
@@ -146,6 +146,13 @@ while (0)
   else                                                          \
     fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
 
+#undef SELECT_RTX_SECTION
+#define SELECT_RTX_SECTION(MODE,RTX)	\
+  if (flag_pic && function_label_operand (RTX, MODE))	\
+    data_section ();					\
+  else							\
+    readonly_data_section ();
+
 /* FIXME: The Linux/parisc gas does not enjoy labels without colons.
    We haven't really decided on all the details of our assembly
    dialect, and the ELF and Linux configuration we 'mix in' here does
Index: gcc/config/pa/pa-linux64.h
===================================================================
RCS file: /home/cvs/parisc/gcc/gcc/config/pa/pa-linux64.h,v
retrieving revision 1.4
diff -u -p -r1.4 pa-linux64.h
--- pa-linux64.h	2000/10/11 20:38:49	1.4
+++ pa-linux64.h	2000/10/24 04:51:08
@@ -213,6 +213,13 @@ do {  \
 #undef STATIC_CHAIN_REGNUM
 #define STATIC_CHAIN_REGNUM 31
 
+#undef SELECT_RTX_SECTION
+#define SELECT_RTX_SECTION(MODE,RTX)	\
+  if (flag_pic && function_label_operand (RTX, MODE))	\
+    data_section ();					\
+  else							\
+    readonly_data_section ();
+
 /* This is not needed for correct operation in 32bit mode, and since
    older versions of gas and the hpux assembler do not accept .dword
    we put this here instead of the more logical location, pa.h.  */


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: Bug in shared libraries
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To: John Marvin <jsm@udlkern.fc.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:8191

On Tue, 24 Oct 2000, Alan Modra wrote:

> The problem occurs when ld.so is relocating itself, ie. during
> ELF_DYNAMIC_RELOCATE (&bootstrap_map, 0, 0).  I looked at fixing the
> dynamic linker, but it's a complete pain to do as a lot of things aren't
> set up at bootstrap stage.  _Much_ easier to fix the compiler as per the
> following diff.  I've tested this on hppa-linux, and a newly built glibc
> has no .rela.rodata in ld.so or libc.so.

Um, that's only half the problem solved.  The other difficulty is with the
.PARISC.unwind section which happens to be read-only and full of DIR32
relocs for hppa-linux.  hppa64-linux uses SEGREL relocs, which don't need
to be copied to shared libs since as their name implies, they are
relative.

I'm inclined to change the 32-bit ELF unwind section over to using SEGREL
relocs too.  Since gdb support isn't finished yet, we won't be breaking
anything.  Comments?

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: RE: [parisc-linux] CD image does not recognize the SCSI Hard Driv
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-----BEGIN PGP SIGNED MESSAGE-----

Is there any plan to create a newer CD image? with broader support?

- -----Original Message-----
From: Grant Grundler [mailto:grundler@cup.hp.com]
Sent: 23. oktober 2000 17:51
To: Servio E. Cabrera
Cc: Parisc-Linux mailing list (E-mail)
Subject: Re: [parisc-linux] CD image does not recognize the SCSI Hard
Drives! on C110 


"Servio E. Cabrera" wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> 
> 
> Hello:
> 
> I have booted the CD image on several machines and does not
> recognize the SCSI HarD drive, the machine I have a HP9000 s700 /
> c110.

Hi Servio,
Just to be clear, is this the CD Image v0.1 dated August 4th, 2000?
(this was made especially for San Jose Linux World Expo)

If so, then you didn't see the printing on the CD we handed out:
 "Bootable on HP 712, A180, B180 and other systems"

"other" mostly means very old workstations (715/735/etc) and
excludes systems with an I/O MMU (any C, J, L, or N-class for
example).

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253

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From: "Stoyan Zoubev" <s_zoubev@prosyst.bg>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Error building binutils
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This is a multi-part message in MIME format.

------=_NextPart_000_0101_01C03DCF.3CCB1280
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

Hi,=20

I am trying to build the linux kernel for HP PA-RISC target on an =
Intel-based Linux machine, following the instructions in "Getting =
started with Linux/PARISC: How to Build the Toolchain":
I am using binutils-2.10, gcc-2.95.2, glibc-2.1.3. And when I run

<path to binutils sources>/configure --host=3Di386-linux =
--prefix=3D/opt/parisc -- \         target=3Dhppa-linux =
--enable-targets=3Dhppa64-linux --disable-nls

I get the following error:=20
...
*** BFD does not support target hppa64-linux.
*** Look in bfd/config.bfd for supported targets.
Configure in /home/zoubev/build/binutils/opcodes failed, exiting.

Can someone explain me what the problem is? Do I have to download =
binutils-latest.tar.gz, gcc-latest.tar.gz, glibc-latest.tar.gz from =
ftp://puffin.external.hp.com?

Best regards,
St.Zoubev

------=_NextPart_000_0101_01C03DCF.3CCB1280
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2314.1000" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi, </FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I am trying to build the linux kernel =
for&nbsp;HP=20
PA-RISC target on an&nbsp;Intel-based Linux machine, following the =
instructions=20
in "Getting started with Linux/PARISC: How to Build the =
Toolchain":</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I am using binutils-2.10, gcc-2.95.2, =
glibc-2.1.3.=20
And when I run</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>&lt;path to binutils =
sources&gt;/configure=20
--host=3Di386-linux --prefix=3D/opt/parisc -- \ &nbsp;&nbsp;&nbsp;=20
&nbsp;&nbsp;&nbsp; target=3Dhppa-linux --enable-targets=3Dhppa64-linux=20
--disable-nls</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I get the following error: =
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>*** BFD does not support target=20
hppa64-linux.<BR>*** Look in bfd/config.bfd for supported =
targets.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Configure in =
/home/zoubev/build/binutils/opcodes=20
failed, exiting.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Can someone explain me what the problem =
is?&nbsp;Do=20
I have to&nbsp;download binutils-latest.tar.gz, gcc-latest.tar.gz,=20
glibc-latest.tar.gz from&nbsp;<A=20
href=3D"ftp://puffin.external.hp.com">ftp://puffin.external.hp.com</A>?</=
FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Best regards,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>St.Zoubev</FONT></DIV></BODY></HTML>

------=_NextPart_000_0101_01C03DCF.3CCB1280--


From - Thu Nov 08 21:13:47 2018
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Error building binutils
Date: Wed, 25 Oct 2000 00:09:29 +1100 (EST)
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To: Stoyan Zoubev <s_zoubev@prosyst.bg>
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Xref: news.gmane.org gmane.linux.ports.parisc:8194

On Tue, 24 Oct 2000, Stoyan Zoubev wrote:

> Hi, 
> 
> I am trying to build the linux kernel for HP PA-RISC target on an Intel-based Linux machine, following the instructions in "Getting started with Linux/PARISC: How to Build the Toolchain":
> I am using binutils-2.10, gcc-2.95.2, glibc-2.1.3. And when I run

None of these versions have the support you need for pa-linux.

> 
> <path to binutils sources>/configure --host=i386-linux --prefix=/opt/parisc -- \         target=hppa-linux --enable-targets=hppa64-linux --disable-nls
> 
> I get the following error: 
> ...
> *** BFD does not support target hppa64-linux.
> *** Look in bfd/config.bfd for supported targets.
> Configure in /home/zoubev/build/binutils/opcodes failed, exiting.
> 
> Can someone explain me what the problem is? Do I have to download binutils-latest.tar.gz, gcc-latest.tar.gz, glibc-latest.tar.gz from ftp://puffin.external.hp.com?

Yes.

-- 
Linuxcare.  Support for the Revolution.


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Bug in shared libraries
Date: Wed, 25 Oct 2000 01:09:32 +1100 (EST)
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To: John Marvin <jsm@udlkern.fc.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:8195

I've just committed a set of changes to binutils on pehc that should fix
the .PARISC.unwind section.  To build a good ld.so, you'll need to
recompile gcc (or at least libgcc) as well as glibc.  No more DT_TEXTREL
tags!

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: "MEYER,ALAN C. \(HP-FtCollins,ex1\)" <alan_meyer@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] CD image does not recognize the SCSI Hard Driv
	 es! on C110
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To: "'Servio E. Cabrera'" <servio.cabrera@mobilix.dk>
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Servio -

Yes, there are plans to create newer CD images.  In particular, we want to
build a newer "beta" image that, like the first image, works on selected
32-bit systems (712, B180, A180, ...).  This will have a fuller and more
robust kernel, along with a decent set of user-space packages.  This should
be in early November.

In addition, there will also be a similar "beta" image that support 64-bit
systems (A400/500, L1000/2000) that happens sometime later.

Stay tuned.  There should be announcements on the mailing list when these
images are ready.

Alan

>-----Original Message-----
>From: Servio E. Cabrera [mailto:servio.cabrera@mobilix.dk]
>Sent: Tuesday, October 24, 2000 4:21 AM
>To: 'Grant Grundler'
>Cc: Parisc-Linux mailing list (E-mail)
>Subject: RE: [parisc-linux] CD image does not recognize the SCSI Hard
>Driv es! on C110 
>
>
>
>*** PGP Signature Status: unknown
>*** Signer: Unknown, Key ID = 0x51F2F9D9
>*** Signed: 10/24/00 3:19:21 AM
>*** Verified: 10/24/00 8:32:03 AM
>*** BEGIN PGP VERIFIED MESSAGE ***
>
>Is there any plan to create a newer CD image? with broader support?
>
>-----Original Message-----
>From: Grant Grundler [mailto:grundler@cup.hp.com]
>Sent: 23. oktober 2000 17:51
>To: Servio E. Cabrera
>Cc: Parisc-Linux mailing list (E-mail)
>Subject: Re: [parisc-linux] CD image does not recognize the SCSI Hard
>Drives! on C110 
>
>
>"Servio E. Cabrera" wrote:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> 
>> 
>> Hello:
>> 
>> I have booted the CD image on several machines and does not
>> recognize the SCSI HarD drive, the machine I have a HP9000 s700 /
>> c110.
>
>Hi Servio,
>Just to be clear, is this the CD Image v0.1 dated August 4th, 2000?
>(this was made especially for San Jose Linux World Expo)
>
>If so, then you didn't see the printing on the CD we handed out:
> "Bootable on HP 712, A180, B180 and other systems"
>
>"other" mostly means very old workstations (715/735/etc) and
>excludes systems with an I/O MMU (any C, J, L, or N-class for
>example).
>
>grant
>
>Grant Grundler
>Unix Systems Enablement Lab
>+1.408.447.7253
>
>
>*** END PGP VERIFIED MESSAGE ***
>
>---------------------------------------------------------------
>------------
>To unsubscribe: send e-mail to 
>parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.
>


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To: Jim Buttafuoco <jim@buttafuoco.org>
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On Mon, Oct 23, 2000 at 08:07:53PM -0400, Jim Buttafuoco wrote:
> Hi,
> 
>     I downloaded the CD image from the FTP site in order to boot my 710
> system.  It failed, attached is the output from the serial port.

iirc, this is a known bug in the version of the parallel port code
which was built for the image.  there's certainly something about it in
the archives.  you'll need to build a new kernel for this machine.

-- 
Revolutions do not require corporate support.


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From: "M. Grabert" <xam@deathsdoor.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Support for(E)ISA ?
Date: Tue, 24 Oct 2000 18:12:22 +0200
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hello there,

i wonder if there is support for the (E)ISA bus or if it is planned (for
the near future/at all).
i have a HP9000/730 and a HP9000/809 F10, and i want to use the first
one to test Linux/hppa
(since i don't have HP/UX and i don't want to install it 'though i could
get it ...).

The 730 has a free EISA slot, and i want to put in a ISA card (WaveLan
PCMCIA-to-ISA-adaptor,
including WireLessLan-PCMCIA-card) sometime in the future ... if it is
possible.

So since this configuration is supported by linux(/x86), i ask you:
- is the support for (E)ISA on linux/x86 a sign/indication/hope/guaratee
for support on linux/hppa ?
- the same question for the WaveLan-driver

I just read the status page (puffin) that there is somebody working on
"WAX EISA support",
so i assume there IS a support for the EISA (and ISA) bus for
linux/hppa, i'm wrong ?

thanks in advance, max



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From: Michael Shalayeff <mickey@lucifier.dial-up.user.akula.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Some things to do...
Date: Fri, 16 Apr 1999 16:22:59 -0400 (EDT)
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Making, drinking tea and reading an opus magnum from Alex deVries:
> 
> I just thought I'd revive things by spitting out a few things on the grand
> to do list; I'm sure I'm missing things.  Please pipe up.

> 1. Fixing binutils
> There's problems with binutils and linking.  I can't tell you precisely
> what because I don't understnad it myself.  I know we need to resolve the
> ELF situation.  Ulrich, comments on this?
i'm not Ulrich but, Jeff Law said that current ld support is clearly
quick and dirty hack he did, which has to be wiped out, and
rewritten from scratch.
there are no "small bugs" in it, it's just wrong (:

> 2. Kernel stuff
> There's of course MMU and interrupt stuff, but we need the binutils sorted
> out first I suspect.
anything we can work out here, guys, i can help? (:

cu

-- 
    paranoic mickey       (my employers have changed but, the name has remained)


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From: Sandy Harris <sandy@storm.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Support for(E)ISA ?
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"M. Grabert" wrote:
> 
> hello there,
> 
> i wonder if there is support for the (E)ISA bus or if it is planned (for
> the near future/at all).

Good question. I'd like to use a 3Com 3c579 ethernet card in my 715.


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Support for(E)ISA ?
Date: Tue, 24 Oct 2000 14:18:07 -0400
Organization: The Puffins at Linuxcare
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Sandy Harris wrote:
> "M. Grabert" wrote:
> > hello there,
> > i wonder if there is support for the (E)ISA bus or if it is planned (for
> > the near future/at all).
> Good question. I'd like to use a 3Com 3c579 ethernet card in my 715.

For EISA to work, Linux needs WAX support, and I don't think there is
any yet because of a lack of documentation.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] gcc build failing, missing pthread.h
Date: Tue, 24 Oct 2000 17:05:19 -0600
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In trying to build a Linux/X86 -> Linux/PARISC cross gcc with glibc support 
I'm running into the following error,

/home/al-76/puffin/xc-build/gcc/gcc/g++ -B/home/al-76/puffin/xc-build/gcc/gcc/ 
-nostdinc++ -isystem /home/al-76/puffin/palinux/gcc/libstdc++ -isystem 
/home/al-76/puffin/palinux/gcc/libstdc++/std -isystem 
/home/al-76/puffin/palinux/gcc/libstdc++/stl -isystem 
/home/al-76/puffin/palinux/gcc/libio -isystem /home/al-76/puffin/xc-build/gcc/h
ppa-linux/libio -L/home/al-76/puffin/xc-build/gcc/hppa-linux/libstdc++ 
-B/opt/palinux/hppa-linux/bin/ -B/opt/palinux/hppa-linux/lib/ -isystem 
/opt/palinux/hppa-linux/include -c -g -O2 -fvtable-thunks -D_GNU_SOURCE 
-fno-implicit-templates -I/home/al-76/puffin/palinux/gcc/libstdc++ 
-I/home/al-76/puffin/palinux/gcc/libstdc++/stl -I../libio 
-I/home/al-76/puffin/palinux/gcc/libstdc++/../libio -nostdinc++  
/home/al-76/puffin/palinux/gcc/libstdc++/stdexcepti.cc
In file included from /home/al-76/puffin/palinux/gcc/libstdc++/stl/alloc.h:21,
                 from /home/al-76/puffin/palinux/gcc/libstdc++/std/bastring.h:3
9,
                 from /home/al-76/puffin/palinux/gcc/libstdc++/string:6,
                 from /home/al-76/puffin/palinux/gcc/libstdc++/stdexcept:36,
                 from /home/al-76/puffin/palinux/gcc/libstdc++/stdexcepti.cc:8:
/home/al-76/puffin/palinux/gcc/libstdc++/stl/stl_alloc.h:71:24: pthread.h: No 
such file or directory
make[1]: *** [stdexcepti.o] Error 1
make[1]: Leaving directory `/home/al-76/puffin/xc-build/gcc/hppa-linux/libstdc+
+'

This is using the build-tools/palinux-autobuilder in CVS same as I always do. 
This is the first build I've done since October 16th. Since then David 
Huggins-Daines made a couple commits that may be related,

http://puffin.external.hp.com/mailing-lists/parisc-linux-cvs/2000/10-Oct/0167.h
tml
http://puffin.external.hp.com/mailing-lists/parisc-linux-cvs/2000/10-Oct/0166.h
tml

I have tried configuring gcc with and without --disable-threads and get the 
same result. Where should pthread.h be coming from and why isn't it working 
automagically?

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com



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From: Alan Modra <alan@linuxcare.com.au>
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On Tue, 24 Oct 2000, Matt Taggart wrote:

> This is the first build I've done since October 16th. Since then David 
> Huggins-Daines made a couple commits that may be related,
> 
> http://puffin.external.hp.com/mailing-lists/parisc-linux-cvs/2000/10-Oct/0167.h
> tml

That's the one that caused your problem.
cvs diff -r1.2 -r1.3 libstdc++/stl/stl_config.h will show you why.

> I have tried configuring gcc with and without --disable-threads and get the 
> same result. Where should pthread.h be coming from and why isn't it working 
> automagically?

pthread.h comes from glibc/linuxthreads/sysdeps/pthread/pthread.h

The answer seems to be to configure and install glibc with
--enable-add-ons, like so

<src_path>/glibc/configure --host=hppa-linux --build=i686-linux\
  --prefix=<dest_path> --with-headers=<src_path>/linux/include\
  --disable-profile --without-cvs --enable-add-ons

Time to update the recipe...

-- 
Linuxcare.  Support for the Revolution.


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Hello,

I could offer some hp-hardware including transport costs 
(at least within germany...).
I don't have a complete list right now, but it 
includes stuff like a G-class server and so on. 
Anybody interested?

cya-
Frank


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] hppa64-linux gcc bug
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Hi Folks,

We think we found a "heisenbug" which has been bothering us
for the past couple of weeks during hppa64-linux developement:
create_proc_entry() "works" when a printk() is added and otherwise
passes garbage as the "parent" argument when calling proc_register().

We need some help in fixing the compiler though.

We haven't had a chance to talk to linuxcare (toolchain support
for hppa*-linux provider) yet since Alan Modra is in .au.
Though this seems like a "generic" hppa bug to me, I doubt it's
in the currently published hppa2.0-hpux toolchain.

[ Note : hppa64-linux tool chain isn't fully merged up with the
  FSF developement trees and can be viewed at:
	http://puffin.external.hp.com/cgi-bin/cvsview/
  OR
	ftp puffin.external.hp.com:/pub/parisc/cvs/*-latest.tar.gz
]


Here's the IRC transcript from John Marvin (jsm@fc.hp.com):

<jsm> There is definitely at least one bug in the 64 bit compiler. The code it
  generates for create_proc_entry is garbage. That could be just one
  manifestation of the heisenbug. 
...
<jsm> If you guys want to attempt it, look at how "parent" is handled. It
  stores r24 at -30 off of the ap (ret1), if it has to call xlate_proc_name
  that is OK, but when it calls proc_register it is calling it with -30 off of
  the new ret1.
<jsm> i.e. the new ap which is -10 off of the new sp, not the original one.
<jsm> It actually does ldo -10(sp),ret1, then ldo -40(ret1),r19, then ldd
  10(r19),r26.
<jsm> but the effect is the same. I'll write it up when I get into work if you
  guys don't beat me to it.



Let me extract the generic.s output that jsm talks about above:
			
0000000000000000 <create_proc_entry>:
   0:   0f c2 12 c1     std  rp,-10(sr0,sp)
   4:   37 de 02 00     ldo 100(sp),sp		[ new_sp == orig_sp + 0x100 ]
...
  24:   73 b8 3f a1     std r24,-30(ret1)	[ "parent" input parm ]
...
  2c:   53 b3 3f a1     ldd -30(ret1),r19	[ if (!parent && ...) ]
  30:   9e 66 22 68     cmpb,*= r6,r19,16c <create_proc_entry+0x16c>
  34:   db 23 0b f0     extrd,u r25,63,16,r3
...
  94:   e8 00 a0 00     call 9c <create_proc_entry+0x9c>
                        94: R_PARISC_PCREL22F   memcpy
  98:   37 dd 3f e1     ldo -10(sp),ret1
...
  d8:   37 dd 3f e1     ldo -10(sp),ret1
  dc:   37 b3 3f 81     ldo -40(ret1),r19
  e0:   08 06 02 59     copy r6,r25
  e4:   e8 00 a0 00     call ec <create_proc_entry+0xec>
                        e4: R_PARISC_PCREL22F   proc_register
  e8:   52 7a 00 20     ldd 10(r19),r26

Recall "parent" input parm was stored at -0x30(orig_ret1).
And now we are effectively trying to reload from -0x40(new_sp).
That would be ok if orig_ret1 == -0x10(new_sp).
But it doesn't:  orig_ret1 == -0x100-0x10(new_sp)

So either "parent" is getting stored to the wrong relative stack
location or is getting reloaded from the wrong one.

Kudos to John - good catch!


The following is available via anon ftp from hpisp747:pub/heisenbug/
o generic.gcc: hppa64-linux-gcc command line to compile generic.c
o *.S are generic.gcc output w/-S added
o *.s files are "hppa64-linux-objdump -rD" output
o '*.prt.*' files have a printk() statement added to create_proc_entry()
  and proc_mkdir() to compare the code generation.


thanks,
grant


ps. Right now, I'm pretty sure I don't want to know why gcc
    doesn't just issue "ldo -100+0x30(sp),r26" instead of fooling
    around w/ret1 (arg ptr).


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Hi,

I am building Linux for HP PA-RISC on Redhat linux. When I give " make 
LANGUAGES=c" for gcc I get the following error can any one help me. I need 
to install Linux on HP A class server. The server does not have a cdrom device.

  The error is as follows:


if [ -f stmp-dirs ]; then true; else touch stmp-dirs; fi
rm -rf ./libgcc.a
hppa-linux-ar  rc ./libgcc.a libgcc/./_muldi3.o libgcc/./_divdi3.o 
libgcc/./_moddi3.o libgcc/./_udivdi3.o libgcc/./_umoddi3.o 
libgcc/./_negdi2.o libgcc/./_lshrdi3.o libgcc/./_ashldi3.o 
libgcc/./_ashrdi3.o libgcc/./_ffsdi2.o libgcc/./_udiv_w_sdiv.o 
libgcc/./_udivmoddi4.o libgcc/./_cmpdi2.o libgcc/./_ucmpdi2.o 
libgcc/./_floatdidf.o libgcc/./_floatdisf.o libgcc/./_fixunsdfsi.o 
libgcc/./_fixunssfsi.o libgcc/./_fixunsdfdi.o libgcc/./_fixdfdi.o 
libgcc/./_fixunssfdi.o libgcc/./_fixsfdi.o libgcc/./_fixxfdi.o 
libgcc/./_fixunsxfdi.o libgcc/./_floatdixf.o libgcc/./_fixunsxfsi.o 
libgcc/./_fixtfdi.o libgcc/./_fixunstfdi.o libgcc/./_floatditf.o 
libgcc/./__gcc_bcmp.o libgcc/./_varargs.o libgcc/./__dummy.o 
libgcc/./_eprintf.o libgcc/./_bb.o libgcc/./_shtab.o 
libgcc/./_clear_cache.o libgcc/./_trampoline.o libgcc/./__main.o 
libgcc/./_exit.o libgcc/./_ctors.o libgcc/./_pure.o libgcc/./_eh.o 
libgcc/./frame-dwarf2.o libgcc/./_divI.o libgcc/./_divU.o libgcc/./_remI.o 
libgcc/./_remU.o libgcc/./_multiply.o libgcc/./_divI_15.o 
libgcc/./_divI_14.o libgcc/./_divI_12.o libgcc/./_divI_10.o 
libgcc/./_divI_9.o libgcc/./_divI_7.o libgcc/./_divI_6.o libgcc/./_divI_5.o 
libgcc/./_divI_3.o libgcc/./_divU_15.o libgcc/./_divU_14.o 
libgcc/./_divU_12.o libgcc/./_divU_10.o libgcc/./_divU_9.o 
libgcc/./_divU_7.o libgcc/./_divU_6.o libgcc/./_divU_5.o libgcc/./_divU_3.o 
libgcc/./_dyncall.o
make[2]: hppa-linux-ar: Command not found
make[2]: *** [libgcc.a] Error 127
make[2]: Leaving directory `/opt/hp/build/gcc/gcc'
make[1]: *** [libgcc.a] Error 2
make[1]: Leaving directory `/opt/hp/build/gcc/gcc'
make: *** [all-gcc] Error 2


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On Wed, Oct 25, 2000 at 02:00:42PM -0700, Kailashnath V Rampure wrote:
> Hi,
> 
> I am building Linux for HP PA-RISC on Redhat linux. When I give " make 
> LANGUAGES=c" for gcc I get the following error can any one help me. I need 
> to install Linux on HP A class server. The server does not have a cdrom device.
> make[2]: hppa-linux-ar: Command not found

you either haven't built and installed binutils, or it isn't in your PATH.
Are you trying to follow the recipe?

-- 
Revolutions do not require corporate support.


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From: Paul Bame <bame@puffin.external.hp.com>
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Subject: [parisc-linux] 64/32-bit changes coming
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I'm about to make a bunch of changes in order to support 32-bit user space
(e.g., what we have now) on wide kernels, and wanted to let people know
what's happening.  My goal is to preserve all the current working 32-bit
userland and kernel code.

In round 1 I'm mostly changing data types which are shared by user space
and kernels which use some form of 'long' to use 'int' instead, since
'int' is the same size in both narrow and wide worlds but 'long' isn't.
(It's obvious that 'long' was used many places to mean 32-bit int, which
is untrue in wide mode) Even though these structs are used by glibc, they
glibc and user apps will be unaffected because the data type sizes aren't
changing.

I probably won't tackle the signal-related data types at first.  It's
possible that it will be desirable to make an incompatible change to
libc for signals but I won't do that without discussion.

Round 2 will be wide kernel changes to start turning on the 32-bit
syscall path probably with a lot of consultation with jsm.

Round 3 will be signals.

I am not addressing hpux syscall-related data types at this time.

	-P


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Thanks but now I have a problem in glibc while running configure. The 
problem is a follows:
/opt/hp/glibc/configure --host=hppa-linux --build=$MACH\
 >  --prefix=$DEST/hppa-linux --with-headers=~/source/linux/include\
 >  --disable-profile --without-cvs --disable-sanity-checks
loading cache ./config.cache
checking host system type... hppa-unknown-linux-gnu
checking sysdep dirs... sysdeps/hppa/elf sysdeps/unix/sysv/linux/hppa 
sysdeps/unix/sysv/linux sysdeps/gnu sysdeps/unix/common sysdeps/unix/mman 
sysdeps/unix/inet sysdeps/unix/sysv sysdeps/unix sysdeps/posix 
sysdeps/hppa/hppa1.1 sysdeps/wordsize-32 sysdeps/ieee754/flt-32 
sysdeps/ieee754/dbl-64 sysdeps/ieee754/ldbl-128 sysdeps/hppa/fpu 
sysdeps/hppa sysdeps/ieee754 sysdeps/generic/elf sysdeps/generic
checking for a BSD compatible install... /usr/bin/install -c
checking whether ln -s works... yes
checking for pwd... /bin/pwd
checking build system type... i386-pc-linux-gnu
checking for hppa-linux-gcc... hppa-linux-gcc
checking version of hppa-linux-gcc... 2.96, ok
checking for gnumake... no
checking for gmake... gmake
checking version of gmake... 3.77, bad
checking for gnumsgfmt... no
checking for gmsgfmt... no
checking for msgfmt... msgfmt
checking version of msgfmt... 0.10.35, ok
checking for makeinfo... makeinfo
checking version of makeinfo... 3.12, ok
checking for gsed... no
checking for sed... sed
checking version of sed... 3.02, ok
configure: error:
*** Some critical program is missing or too old.
*** Check the INSTALL file for required versions.

Regards
Kailas



At 03:36 PM 10/25/00 -0600, you wrote:

>Kailashnath V Rampure writes...
>
> > Hi,
> >
> > I am building Linux for HP PA-RISC on Redhat linux. When I give " make
> > LANGUAGES=c" for gcc I get the following error can any one help me. I need
> > to install Linux on HP A class server. The server does not have a cdrom 
> devic
> > e.
> >
>[snip]
> > make[2]: hppa-linux-ar: Command not found
>
>You need to add the bin directory of the newly built binutils to your 
>$PATH so
>it can find the tools it needs.
>
>Unless you have an interest in hacking binutils/gcc/glibc you're probably
>better off just grabbing prebuilt tools. See,
>
>http://www.thepuffingroup.com/parisc/software.html
>
>for more info.
>
>HTH,
>
>--
>Matt Taggart
>taggart@fc.hp.com


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On 16 Apr 1999, Ulrich Drepper wrote:
> > [name aliases...]
> > Comments on how to do this from Cygnus would be appreciated.
> 
> Talk to Ben Elliston <bje@cygnus.com> the autoconf maintainer.

I'll take the lead on this, since I've had the naming discussions with HP.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team




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Xref: news.gmane.org gmane.linux.ports.parisc:8211

> Thanks but now I have a problem in glibc while running configure. The 
...
> problem is a follows:
> checking version of gmake... 3.77, bad

Upgrade gmake to latest.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi

I have upgraded to GNU Make version 3.79.1 but when i run make its is 
giving following error:

Regards
Kailas

hppa-linux-gcc -nostdlib -nostartfiles -r -o /opt/hp/build/glibc/csu/crt1.o 
/opt/hp/build/glibc/csu/start.o /opt/hp/build/glibc/csu/abi-note.o 
/opt/hp/build/glibc/csu/init.o
hppa-linux-gcc -nostdlib -nostartfiles -r -o 
/opt/hp/build/glibc/csu/gcrt1.o /opt/hp/build/glibc/csu/crt1.o 
/opt/hp/build/glibc/csu/gmon-start.o
cp /dev/null /opt/hp/build/glibc/csu/Mcrt1.c
hppa-linux-gcc -O -Wall -Winline -Wstrict-prototypes -Wwrite-strings 
-g      -I../include -I. -I/opt/hp/build/glibc/csu -I.. 
-I../libio  -I/opt/hp/build/glibc -I../sysdeps/hppa/elf 
-I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux 
-I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman 
-I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix 
-I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 
-I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 
-I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa 
-I../sysdeps/ieee754 -I../sysdeps/generic/elf 
-I../sysdeps/generic  -nostdinc -isystem 
/opt/hpboot/lib/gcc-lib/hppa-linux/2.96/include -isystem 
/opt/hp/linux/include  -include 
../include/libc-symbols.h     -DHAVE_INITFINI  -c 
/opt/hp/build/glibc/csu/Mcrt1.c -o /opt/hp/build/glibc/csu/Mcrt1.o
make[2]: *** [/opt/hp/build/glibc/csu/Mcrt1.o] Error 1
make[2]: Leaving directory `/opt/hp/glibc/csu'
make[1]: *** [csu/subdir_lib] Error 2
make[1]: Leaving directory `/opt/hp/glibc'
make: *** [all] Error 2


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On Wed, 25 Oct 2000, Grant Grundler wrote:

> hppa-linux-ld dies with no error msg.
> Make complains with "make: *** [vmlinux] Error 1".
> 
> I reverted to the previous toolchain, 20001016, and make clean/vmlinux
> produced a vmlinux. Something is broken.

It sure is.  vmlinux.lds is putting .PARISC.unwind into the .text section
which badly confused the linker, and renders the unwind data useless.  The
unwind sections need to be put into a .PARISC.unwind output section.
Which is not an excuse for the linker bombing of course...  Fixing it.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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On Wed, 25 Oct 2000, Kailashnath V Rampure wrote:

> Hi
> 
> I have upgraded to GNU Make version 3.79.1 but when i run make its is 
> giving following error:
> 
> Regards
> Kailas
> 
> hppa-linux-gcc -nostdlib -nostartfiles -r -o /opt/hp/build/glibc/csu/crt1.o 
> /opt/hp/build/glibc/csu/start.o /opt/hp/build/glibc/csu/abi-note.o 
> /opt/hp/build/glibc/csu/init.o
> hppa-linux-gcc -nostdlib -nostartfiles -r -o 
> /opt/hp/build/glibc/csu/gcrt1.o /opt/hp/build/glibc/csu/crt1.o 
> /opt/hp/build/glibc/csu/gmon-start.o
> cp /dev/null /opt/hp/build/glibc/csu/Mcrt1.c

Hmm, my make.log shows a difference here.  I have echo > ...Mcrt1.c, which
creates a 1 byte dummy file rather than the zero byte file you get from cp
/dev/null.  Bombing on an empty input file is a known gcc bug for the
snapshot we took of the Cygnus development gcc sources.

I suggest you update your glibc sources.

-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] hppa64-linux gcc bug
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On Wed, 25 Oct 2000, Grant Grundler wrote:

> The following is available via anon ftp from hpisp747:pub/heisenbug/

Can you turn this into a real URL please?

-- 
Linuxcare.  Support for the Revolution.


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             <Pine.LNX.4.21.0010261434150.31251-100000@front.linuxcare.com.au> 
Xref: news.gmane.org gmane.linux.ports.parisc:8216

Alan Modra wrote:
> On Wed, 25 Oct 2000, Grant Grundler wrote:
> 
> > The following is available via anon ftp from hpisp747:pub/heisenbug/
> 
> Can you turn this into a real URL please?

Alan (and others),
My bad...I had in fact scp'd the files to
	ftp://puffin.external.hp.com/pub/parisc/debug/

I just blanked out and forgot to list that as well in the email.

aplogies,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] hppa64-linux gcc bug
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On Wed, 25 Oct 2000, Grant Grundler wrote:

> Though this seems like a "generic" hppa bug to me, I doubt it's
> in the currently published hppa2.0-hpux toolchain.
> 
> [ Note : hppa64-linux tool chain isn't fully merged up with the

The bug manifests itself on today's CVS gcc from sourceware.
.../configure --host=i686-linux --target=hppa64-linux

Maybe one of the gcc maintainers can clue me in to where I should be
looking for a problem from the following.

Extract from generic.c.17.sched

[snip, nothing changes reg:DI 29 (ARG_POINTER_REGNUM)]

(insn 4 23 9 (set (reg:DI 66)
        (plus:DI (reg:DI 29 %r29)
            (const_int -64 [0xffffffc0]))) 166 {fixuns_truncdfdi2+2} (nil)
    (nil))

[snip, nothing changes reg:DI 66, but reg:DI 29 gets set before a number
 of function calls, including this one. ]

(insn 199 203 204 (set (reg:DI 26 %r26)
        (mem/f:DI (plus:DI (reg:DI 66)
                (const_int 16 [0x10])) 0)) 123 {movstrsi_internal+11} (insn_list 194 (nil))
    (expr_list:REG_DEAD (reg:DI 66)
        (nil)))

(call_insn 204 199 206 (parallel[ 
            (set (reg:DI 28 %r28)
                (call (mem:SI (symbol_ref/v:DI ("@proc_register")) 0)
                    (const_int 64 [0x40])))
            (clobber (reg:SI 2 %r2))
            (use (const_int 0 [0x0]))
        ] ) 272 {call_value_internal_symref} (insn_list 194 (insn_list 203 (insn_list 199 (insn_list 201 (nil)))))
    (expr_list:REG_DEAD (reg:DI 26 %r26)
        (expr_list:REG_DEAD (reg:DI 25 %r25)
            (expr_list:REG_DEAD (reg:DI 27 %r27)
                (expr_list:REG_DEAD (reg:DI 29 %r29)
                    (expr_list:REG_UNUSED (reg:DI 28 %r28)
                        (expr_list:REG_UNUSED (reg:SI 2 %r2)
                            (expr_list:REG_EH_REGION (const_int 0 [0x0])
                                (nil))))))))
    (expr_list (use (reg:DI 29 %r29))
        (expr_list (use (reg:DI 4 %r4))
            (expr_list (use (reg:DI 27 %r27))
                (expr_list (use (reg:DI 25 %r25))
                    (expr_list (use (reg:DI 26 %r26))
                        (nil)))))))


Now the corresponding rtl from generic.c.18.lreg

[snip a number of places like the following insn where reg:DI 29
 (ARG_POINTER_REGNUM) is set for function calls.  How is it that
 gcc doesn't see this register has been trashed?]

(insn 203 201 239 (set (reg:DI 29 %r29)
        (plus:DI (reg:DI 30 %r30)
            (const_int -16 [0xfffffff0]))) 166 {fixuns_truncdfdi2+2} (nil)
    (nil))

(insn 239 203 199 (set (reg:DI 66)
        (plus:DI (reg:DI 29 %r29)
            (const_int -64 [0xffffffc0]))) 166 {fixuns_truncdfdi2+2} (nil)
    (expr_list:REG_EQUIV (plus:DI (reg:DI 29 %r29)
            (const_int -64 [0xffffffc0]))
        (nil)))

(insn 199 239 204 (set (reg:DI 26 %r26)
        (mem/f:DI (plus:DI (reg:DI 66)
                (const_int 16 [0x10])) 0)) 123 {movstrsi_internal+11} (insn_list 194 (nil))
    (expr_list:REG_DEAD (reg:DI 66)
        (nil)))

(call_insn 204 199 206 (parallel[ 
            (set (reg:DI 28 %r28)
                (call (mem:SI (symbol_ref/v:DI ("@proc_register")) 0)
                    (const_int 64 [0x40])))
            (clobber (reg:SI 2 %r2))
            (use (const_int 0 [0x0]))
        ] ) 272 {call_value_internal_symref} (insn_list 194 (insn_list 203 (insn_list 199 (insn_list 201 (nil)))))
    (expr_list:REG_DEAD (reg:DI 26 %r26)
        (expr_list:REG_DEAD (reg:DI 25 %r25)
            (expr_list:REG_DEAD (reg:DI 27 %r27)
                (expr_list:REG_DEAD (reg:DI 29 %r29)
                    (expr_list:REG_UNUSED (reg:DI 28 %r28)
                        (expr_list:REG_UNUSED (reg:SI 2 %r2)
                            (expr_list:REG_EH_REGION (const_int 0 [0x0])
                                (nil))))))))
    (expr_list (use (reg:DI 29 %r29))
        (expr_list (use (reg:DI 4 %r4))
            (expr_list (use (reg:DI 27 %r27))
                (expr_list (use (reg:DI 25 %r25))
                    (expr_list (use (reg:DI 26 %r26))
                        (nil)))))))


-- 
Linuxcare.  Support for the Revolution.

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QQZLf8mCLsiT4BYWu0Ha92f/P/odoy8r6wMA
--499855707-807005805-972547438=:31251--


From - Thu Nov 08 21:13:49 2018
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] hppa64-linux gcc bug
Date: Thu, 26 Oct 2000 19:41:05 +1100 (EST)
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To: Grant Grundler <grundler@cup.hp.com>
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On Thu, 26 Oct 2000, Alan Modra wrote:

> On Wed, 25 Oct 2000, Grant Grundler wrote:
> 
> > Though this seems like a "generic" hppa bug to me, I doubt it's
> > in the currently published hppa2.0-hpux toolchain.
> > 
> > [ Note : hppa64-linux tool chain isn't fully merged up with the
> 
> The bug manifests itself on today's CVS gcc from sourceware.
> .../configure --host=i686-linux --target=hppa64-linux

Errm, how embarrassing.  Instead of "today's CVS gcc" I configured from
the puffin gcc tree.  Alert readers probably can see that from the
hppa64-linux target I used above.  Trying again, this time using the right
gcc source with --target=hppa64-hpux11 is even worse though.  The same
sort of bug exhibits itself in proc_symlink, _and_ I get a segmentation
fault.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] testcase for hppa64 gcc bug
Date: Fri, 27 Oct 2000 00:43:42 +1100 (EST)
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Xref: news.gmane.org gmane.linux.ports.parisc:8219

Here is a distilled testcase for the hppa64 bug reported in
http://gcc.gnu.org/ml/gcc-bugs/2000-10/msg00511.html

extern void abort(void);

char p;

int f1 (char **);
int f2 (char *, char **);

char *f3 (char *a, char *b)
{
  char *c = 0;

  if (f1 (&b) != 0)
    goto out;

  /* hppa64 passes bogus value for b */
  f2 (b, &c);

out:
  return c;
}

int f1 (char **x)
{
  if (*x != &p)
    abort ();
  return 0;
}

int f2 (char *a, char **b)
{
  if (a != &p)
    abort ();
  *b += 1;
  return 0;
}

int main (void)
{
  if (f3 (0, &p) != (char *) 0 + 1)
    abort ();
  return 0;
}

-- 
Linuxcare.  Support for the Revolution.


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From: "Martin K. Petersen" <mkp@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Boot log from my C160
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Richard/Grant,

Output from my C160.  Only disk sits off the 720.


Firmware Version  6.1

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache 
  ---------  --------   ---------------------  -----------------  -------------
      0      160 MHz    Active                 Functional         512 KB/512 KB

  Central Bus Speed (in MHz) :        120

  Available memory (bytes)    : 536870912
  Good memory required (bytes):   10240000 

  Primary boot path:    PCI4.0.0
  Alternate boot path:  LAN.0.0.0.0.0.0
  Console path:         GRAPHICS(0)
  Keyboard path:        PS2

CPU 0
WARNING:  Self tests have been disabled as a result of FASTBOOT
          being enabled.  To enable self tests, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.
WARNING:  Memory has been initialized, but not tested as a result of
          FASTBOOT being enabled.  To test memory, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


Processor is starting auto boot process.

To discontinue, press any key within 10 seconds.

Boot terminated.


------- Main Menu -------------------------------------------------------------

        Command                         Description
        -------                         -----------
        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration [<command>]       Access Configuration menu/commands
        INformation [<command>]         Access Information menu/commands
        SERvice [<command>]             Access Service menu/commands

        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command > bo lanm 
Interact with IPL (Y, N, Q)?> n

Booting... 
Network Station Address 0060b0-07e4a5
System IP Address 10.0.0.7
Server IP Address 10.0.0.5

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl mkp@jaguar Thu Oct 26 10:59:16 EDT 2000
0/vmlinux 2118157 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=10.0.0.5 '
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100128 first 00100000 n 4
Segment 0 load 00100000 size 1426012 mediaptr 0x1000
Segment 1 load 0025e000 size 182664 mediaptr 0x15e000
Segment 2 load 0028c000 size 118220 mediaptr 0x18b000
Segment 3 load 002ac000 size 8192 mediaptr 0x1a8000
branching to kernel entry point 0x00100128
Set default PSW W bit to 0
PDC Console Initialized
The Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02dd000
arg0 0x504d40  arg1 0x504d40
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=10.0.0.5 '
PALO initrd 0-0
model   000059b0 00000481 00000000 00000002 778fe270 100000f0 00000008 000000b2 000000b2
vers    00000205
cpuid   000001c9
CPUID vers 14 rev 9
Searching for devices in PDC firmware... processor hpa 0xfffa0000
a newer box...
Found devices:
1. Unknown device (4) at 0xf200c000, versions 0x3b, 0x0, 0x89, 0x0, 0x80
2. Raven U/L2 Core BA (11) at 0xffd00000, versions 0x3b, 0x0, 0x81, 0x0, 0x0
3. Raven U/L2 Core RS-232 (10) at 0xffd05000, versions 0x3b, 0x0, 0x8c, 0x0, 0x0
4. Raven U/L2 Core SCSI (10) at 0xffd06000, versions 0x3b, 0x0, 0x82, 0x0, 0x0
5. Raven U/L2 Core Lan (802.3) (10) at 0xffd07000, versions 0x3b, 0x0, 0x8a, 0x0, 0x0
6. Raven U/L2 Core Centronics (10) at 0xffd02000, versions 0x3b, 0x0, 0x74, 0x0, 0x0
7. Raven U/L2 Core Audio (10) at 0xffd04000, versions 0x3b, 0x4, 0x7b, 0x0, 0x0
8. Raven U/L2 Core PC Keyboard (10) at 0xffd08000, versions 0x3b, 0x0, 0x84, 0x0, 0x0
9. Raven U/L2 Core PC Keyboard (10) at 0xffd08100, versions 0x3b, 0x0, 0x84, 0x0, 0x0
10. Raven Backplane Wax BA (11) at 0xffe00000, versions 0x17, 0x0, 0x8e, 0x0, 0x0
11. Raven Backplane Wax EISA BA (11) at 0xfc000000, versions 0x17, 0x0, 0x90, 0x0, 0x0
12. Raven Backplane Wax HIL (10) at 0xffe01000, versions 0x17, 0x0, 0x73, 0x0, 0x0
13. Raven Backplane RS-232 (10) at 0xffe02000, versions 0x17, 0x0, 0x8c, 0x0, 0x0
14. Gecko GSC Core Graphics (10) at 0xfa000000, versions 0x16, 0x0, 0x85, 0x0, 0x0
15. U2-IOA BC GSC+ Port (7) at 0xf203f000, versions 0x501, 0x1, 0xc, 0x3, 0x0
16. U2-IOA BC GSC+ Port (7) at 0xf103f000, versions 0x501, 0x1, 0xc, 0x3, 0x0
17. Dino PCI Bridge (13) at 0xf2000000, versions 0x680, 0x3, 0xa, 0x0, 0x0
That's a total of 17 devices.
CPU(s): 0 x PA8000 (PCX-U) at 160.000000 MHz
Linux version 2.4.0-test6 (mkp@jaguar) (gcc version 2.96 20000925 (experimental)) #3 Thu Oct 26 11:00:50 EDT 2000
free_bootmem(0x2e1000, 0x1fd1f000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 131072
zone(0): 65536 pages.
zone(1): 65536 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=LINUX root=/dev/nfs nfsroot=10.0.0.5 
trap_init
Calibrating delay loop... 319.49 BogoMIPS
Memory: 511588k available
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
Wax at 0xffe00000 found.
Wax: HIL Keyboard-NMI registered.
parport0: PC-style at 0xffd02800, irq 536 [PCSPP,TRISTATE]
Found i82596 at 0xffd07000, IRQ 535
early initialization of device eth0 is deferred
Initializing lasi keyboard port at 0xffd08000...
Initializing lasi mouse port at 0xffd08100...
Found HIL at 0xffe01000, IRQ 798
No handler for interrupt 259 !
HIL: timed out, assuming no keyboard present.
Warning : device (10, 0x17, 0x0, 0x73, 0x0) NOT claimed by HIL 712, 715 or similiar
Dino version 3.1 (bridge mode) found at 0xf2000000
ccio found U2 GSC+ BC at 0xf203f000
ccio found U2 GSC+ BC at 0xf103f000
ccio: already initialized one device
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 32768)
Starting kswapd v1.7
pty: 256 Unix98 ptys configured
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 534
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: Good, target data areas are dma coherent
scsi0: test 1 completed ok.
: Zalon vers field is 0x1, IRQ 260
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
ncr53c720-0: restart (scsi reset).
sym53c8xx: at PCI bus 1, device 4, function 0
sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...
sym53c8xx: setting PCI_COMMAND_MASTER...(fix-up)
kernel BUG at sym53c8xx.c:719!
sym53c8xx: 53c875E detected 
kernel BUG at sym53c8xx.c:719!
sym53c875E-0: rev 0x26 on pci bus 1 device 4 function 0 irq 1024
sym53c875E-0: NCR clock is 40772KHz
sym53c875E-0: ID 7, Fast-20, Parity Checking
sym53c875E-0: on-chip RAM at 0xf2fff000
sym53c875E-0: restart (scsi reset).
sym53c875E-0: Downloading SCSI SCRIPTS.
scsi0 : LASI/Simple 53c7xx
scsi1 : ncr53c8xx - version 3.3b
scsi2 : sym53c8xx - version 1.6b
scsi : 3 hosts.
scsi0: Unable to abort command for target 0
scsi0: Unable to send Bus Device Reset for target 0
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 02, sstat0 = 20, sstat1 = 00, dstat = 00
scsi0: dsp = 00080020 (script[0x0008]), dsps = 00080080, target = 0
scsi0: Failing command for ID0
scsi0: Unable to abort command for target 0
scsi0: Unable to abort command for target 1
scsi0: Unable to send Bus Device Reset for target 1
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 02, sstat0 = 20, sstat1 = 00, dstat = 00
scsi0: dsp = 00080020 (script[0x0008]), dsps = 00080080, target = 0
scsi0: Failing command for ID0
scsi0: Unable to abort command for target 1
  Vendor: $  B  Model: , , |,  ) @  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 00
Detected scsi disk sda at scsi0, channel 0, id 1, lun 0
scsi0: Unable to abort command for target 2
scsi0: Unable to send Bus Device Reset for target 2
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 02, sstat0 = 20, sstat1 = 00, dstat = 00
scsi0: dsp = 00081020 (script[0x0408]), dsps = 00081080, target = 0
scsi0: Failing command for ID1

Dumping Stack from dfe04000 to dfe049c0:
4000 00000000 00000040 00000000 00000000 c027346c 00000000 00000000 ffffffff
4020 00000001 00000000 00000000 00000000 00000000 00000000 ffffffff c0273384
4040 c0273384 c02ac000 dfe28000 c027960c 00000000 00000000 00000000 00000000
4060 00000000 00000000 00000005 00000001 00000000 00000001 00000000 dfff0000
4080 dfff0000 00000000 00000000 dfe28000 00000000 c02caec8 00000000 dfe0409c
40a0 dfe0409c dfe040a4 c01196ec 00000000 00000000 00000000 00000000 00000000
40c0 00000000 00000000 00000000 00000000 00000000 00000000 dfe04000 c011c4b0
40e0 00000000 0000000c 00000000 00000000 00000145 00000000 00000151 00000000
4100 00000000 00000000 00000000 00000000 00000000 80000000 00000000 00000000
4120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
41a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 fffffeff
41c0 00000000 ffffffff 00000000 c0273fb4 ffffffff ffffffff ffffffff ffffffff
41e0 ffffffff ffffffff 00800000 05000000 00000000 ffffffff ffffffff ffffffff
4200 00002000 00002000 00000400 00000400 ffffffff ffffffff ffffffff ffffffff
4220 00007363 73695f65 685f3000 00000000 00000000 00000000 00000000 00000000
4240 00000000 00000000 aa8e032d ffa95beb 4efd3eff dfeff75f ff7fffbf ffff7fff
4260 7fdbef3b febf7fff ffff9fff fb5fffff ad6deffd 9fbcdfff ff9ff7ff fefffffe
4280 ffffd7fe ffffffff ffffffff ffdfffff feffebff ff7ffeff 7fffafbf fefe8aff
42a0 effe6fff ffffffef ffeffeff dffe1260 c01c6d00 fff9fff7 00000000 fbf6ffff
42c0 fbefdfff fbbb3e7f ffffffff ffedf7db fffbffff f7e3fefb 7dffffff ef7fffff
42e0 ffef6dff be9dfbff ffffffff efff7fdf 7bfbabbf d3fbbfde fdffffbc ffebffff
4300 7ff4feff ffeddbff 7fdfdf5e fdfeffff 59efffff bffeff7f d7ffbf7f f7ffffff
4320 ff6fdffd dfbdffed fffeff7d ffefffff 7bd77fff fffcb77f f7ffeffb fbefffbf
4340 ffffdfff ddfeeb7e 00000000 00000000 00000000 00000000 00000000 00000000
4360 00000000 00000000 00000000 00000000 c011ab80 c011ab84 c0285000 00000000
4380 00000104 c028533c 00000000 f200c800 4efd3eff dfe14000 0000000d 2b6a2000
43a0 c024798c dfe14038 ffff9fff fb5fffff ad6deffd c029c518 ff9ff7ff fefffffe
43c0 ffffd7fe ffffffff 0004ff0b c0285000 c029c518 dfe14000 0000000b dfff08c8
43e0 dffe1360 c02855e4 dfe14038 00000000 c0247800 c01044a0 00000000 ffffffff
4400 000000fd f0100000 0000003c 0000003e dfe048c0 c0103cf4 c02b21e2 00000004
4420 c02b21c7 0000001a c02b21e2 00000000 dfe14b0c c025e000 00000026 0004e200
4440 0027a000 00000000 c0279040 dfe20040 00000000 dfe03000 00000000 00000000
4460 ffffffff ffffffff 00000000 dfe04468 00000000 00000000 00000000 00000000
4480 00000000 00000000 34bb9e06 3da1043d 69773c0c 7b42087a d2ee7818 f68410f4
44a0 a5aa4562 ed7e94bb 4b223f96 da8b9c25 9632ca7e b5618d19 2c1321ae 6ab5af61
44c0 5826435c d56b5ec2 b03a33ea aaa008d7 6002d286 5536a4fd c005a50c aa6d49fa
44e0 807dff4a 54ac26a7 00fbfe94 c0103c48 0181487a 52c62fcf 030290f4 a58c5f9e
4500 067394ba 4b6e0a6f 00000000 00000000 00000000 dfe04514 dfe04514 dfe0451c
4520 dfe0451c dfe04524 00000000 00000000 00000000 dfe04514 dfe04514 dfe0451c
4540 dfe0451c dfe04524 dfff0940 dfe04000 c027960c 00000000 dfff0000 84d1aa9d
4560 d038b4de 09d5e069 a07169bc 13abc0d2 40e2d378 275781a4 81c5a6f0 4eaf0348
4580 038b4de0 9d5e0690 07602e92 3acab873 0000000f 00000000 c024952c dfe04222
45a0 3b77c1c2 d62376cb 769936d6 c01c6f0c ed44d8fe 581604d9 da89b1fc b02c09b2
45c0 dfe04508 dfe04524 00000000 dfe04000 ffffffff 00000000 0000000a c028d730
45e0 c02db800 c0285000 dfe04524 dfe04508 dfe04524 dfe04000 dffe1260 dfe04524
4600 dfe04508 dfe04524 dfe04000 dffe1260 dfe04524 0c000000 0000000b dffe1260
4620 dfffc800 dd4745f5 d4eb92be c01c6938 a9a1902e 7586c821 5343205c eb0d9042
4640 00000001 00000000 dfe04000 dfe04508 00000000 00000000 00000000 00000000
4660 00000000 00000000 00000000 c01c60ac 00000000 00000000 00000000 00000000
4680 0000000b c0273000 00000000 00000000 00000017 dfe04758 00000000 c024c92c
46a0 dfe0469c dfe046a4 00000000 c01d1850 00001de0 dfe04688 c01c5ab8 dfe0469c
46c0 00002000 00001000 00002001 dfffcc00 0000ffff 00000000 dfffce00 dffe1260
46e0 dfffce00 00002000 00001000 00002001 dfffcc00 0000ffff 00000000 dfffce00
4700 dffe1260 dfffce00 00000000 00081080 00000060 00000001 00000000 c024c908
4720 ffff9fff fb5fffff ad6deffd c01d1738 ff9ff7ff fefffffe ffffd7fe ffffffff
4740 dfffcc00 00001002 dfe0471c 00000020 f000168c f0100000 000000fd dffe1260
4760 00001002 00000000 00000020 c024c800 00080000 dffe1260 dffe12e0 00000002
4780 0004000a c0120800 c01c5534 dfffcc00 00001000 00000002 dffe12e0 dffe1260
47a0 00080000 c024c800 00000020 00000000 00001002 dffe1260 000000fd f0100000
47c0 f000168c f000020c f0000204 c01c8d1c c01c89f0 0000000a c01c5520 00000060
47e0 c02734a0 c02734a0 dfffcc68 c025e000 00000001 00000000 dfe049c0 c01d1738
4800 aa8e032d ffa95beb 4efd3eff dfeff75f ff7fffbf ffff7fff 7fdbef3b febf7fff
4820 ffff9fff fb5fffff ad6deffd 9fbcdfff ff9ff7ff fefffffe ffffd7fe ffffffff
4840 ffffffff ffdfffff feffebff ff7ffeff 7fffafbf fefe8aff effe6fff ffffffef
4860 ffeffeff effffffd 5bff6ddf fff9fff7 ffdfffff fbf6ffff fbefdfff fbbb3e7f
4880 ffffffff ffedf7db fffbffff f7e3fefb 7dffffff ef7fffff ffef6dff be9dfbff
48a0 ffffffff efff7fdf 7bfbabbf d3fbbfde fdffffbc ffebffff 7ff4feff ffeddbff
48c0 7fdfdf5e fdfeffff 59efffff bffeff7f d7ffbf7f f7ffffff ff6fdffd dfbdffed
48e0 fffeff7d ffefffff 7bd77fff fffcb77f f7ffeffb fbefffbf ffffdfff ddfeeb7e
4900 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4920 00000000 00000000 c0120a4c c0120a50 713683e8 2a1ea43c e26d07d0 543d4878
4940 00000000 00000000 00000001 00000100 0000001d 0e931288 00000000 c01c89f4
4960 0000000a dffe12e0 dfffca00 c0107d08 3b0d8274 132a565e 761b04e8 2654acbc
4980 80000000 c02ca800 dfe04680 00000100 00000000 00002000 000003e8 00001000
49a0 00002000 00001002 dffe1260 c01046e0 f0100000 f000168c f000020c f0000204

Data access rights fault in kernel: Code=26 regs=dfe04780 (Addr=c01c89f4)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001010
r0-3     00000000 c0120800 c01c5534 dfffcc00
r4-7     00001000 00000002 dffe12e0 dffe1260
r8-11    00080000 c024c800 00000020 00000000
r12-15   00001002 dffe1260 000000fd f0100000
r16-19   f000168c f000020c f0000204 c01c8d1c
r20-23   c01c89f0 0000000a c01c5520 00000060
r24-27   c02734a0 c02734a0 dfffcc68 c025e000
r28-31   00000001 00000000 dfe049c0 c01d1738
sr0-4    00000000 00000000 00000000 00000000
sr4-8    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c0120a4c c0120a50
 IIR: 0e931288    ISR: 00000000  IOR: c01c89f4
ORIG_R28: 00000000

-- 
Martin K. Petersen, Principal Linux Consultant, Linuxcare, Inc.
mkp@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.


From - Thu Nov 08 21:13:49 2018
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From: Christopher Beard <cjbeard@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Revised PA-RISC 1.1 Documentation
Date: Sat, 17 Apr 1999 20:46:41 +0000 (   )
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Just noticed that the PA-RISC 1.1 Instruction Set Architecture
documentation webpage has been cleaned up. There are also now links to the
.pdf versions.

	 http://dtf.external.hp.com/linux/Docs/PAdocs/index.html

I don't know how new this is, but I recall looking for these before and
the page being quite outdated. I'll post this to the project web page as
well.

- Chris


From - Thu Nov 08 21:13:49 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] __FUNCTION__ revisited
Date: Thu, 26 Oct 2000 12:54:43 -0700 (PDT)
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Hi Ulrich,

After RTFMing for a bit, I still think __FUNCTION__ is b0rken.
Maybe I'm doing something else stupid that's obvious to you.

In linux/arch/parisc/kernel/sba_ccio.c I have some debug
output which can be enabled like this:
	#define DEBUG_SBA_RUN_SG

I use that for:

	#ifdef DEBUG_SBA_RUN_SG
	#define DBG_RUN_SG(x...)       printk(x)
	#else
	#define DBG_RUN_SG(x...)
	#endif

and use DBG_RUN_SG() like this:

	DBG_RUN_SG("%s() DONE %d mappings\n", __FUNCTION__, n_mappings);

The output I get looks like "() DONE 16 mappings".
No complaints from compiler or linker.


And despite the official change of __FUNCTION__'s data type almost 2 years
ago in the developement branch, __FUNCTION__ was still being treated as
a literal by our tool chain as late as August 3, 2000.
I still have the c110 console output to prove it:
-rw-rw----   1 grundler users       12384 Aug  3 19:35 c110.out1

thanks,
grant


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Subject: [parisc-linux] __FUNCTION__ revisited
Date: Thu, 26 Oct 2000 12:56:32 -0700 (PDT)
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Hi Ulrich,

After RTFMing for a bit, I still think __FUNCTION__ is b0rken.
Maybe I'm doing something else stupid that's obvious to you.

In linux/arch/parisc/kernel/sba_ccio.c I have some debug
output which can be enabled like this:
	#define DEBUG_SBA_RUN_SG

I use that for:

	#ifdef DEBUG_SBA_RUN_SG
	#define DBG_RUN_SG(x...)       printk(x)
	#else
	#define DBG_RUN_SG(x...)
	#endif

and use DBG_RUN_SG() like this:

	DBG_RUN_SG("%s() DONE %d mappings\n", __FUNCTION__, n_mappings);

The output I get looks like "() DONE 16 mappings".
No complaints from compiler or linker.


And despite the official change of __FUNCTION__'s data type almost 2 years
ago in the developement branch, __FUNCTION__ was still being treated as
a literal by our tool chain as late as August 3, 2000.
I still have the c110 console output to prove it:
-rw-rw----   1 grundler users       12384 Aug  3 19:35 c110.out1

thanks,
grant


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Subject: Re: [parisc-linux] glibc problem
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--=====================_5144707==_.ALT
Content-Type: text/plain; charset="us-ascii"; format=flowed

HI alan,

I did upgrade to latest glibc from the cvs and tried I still get the same 
error. Actually I restarted from scratch starting from binutils. I have 
seen some warning while I built gcc. The smallpart of gcc warnings are as 
follows:

Gcc warnings:

prototypes -pedantic -Wno-long-long  -DHAVE_CONFIG_H    -I. 
-I/opt/hp/gcc/gcc -I/opt/hp/gcc/gcc/config -I/opt/hp/gcc/gcc/../include 
/opt/hp/gcc/gcc/explow.c
/usr/include/bits/string2.h: In function `__stpcpy_small':
In file included from /usr/include/string.h:346,
                  from /opt/hp/gcc/gcc/system.h:176,
                  from /opt/hp/gcc/gcc/explow.c:24:
/usr/include/bits/string2.h:611: warning: pointer targets in return differ 
in signedness
gcc -c -DCROSS_COMPILE -DIN_GCC    -g -O2 -W -Wall -Wtraditional 
-Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic 
-Wno-long-long  -DHAVE_CONFIG_H    -I. -I/opt/hp/gcc/gcc 
-I/opt/hp/gcc/gcc/config -I/opt/hp/gcc/gcc/../include /opt/hp/gcc/gcc/optabs.c
/usr/include/bits/string2.h: In function `__stpcpy_small':
In file included from /usr/include/string.h:346,
                  from /opt/hp/gcc/gcc/system.h:176,
                  from /opt/hp/gcc/gcc/optabs.c:24:
/usr/include/bits/string2.h:611: warning: pointer targets in return differ 
in signedness
gcc -c -DCROSS_COMPILE -DIN_GCC    -g -O2 -W -Wall -Wtraditional 
-Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic 
-Wno-long-long  -DHAVE_CONFIG_H    -I. -I/opt/hp/gcc/gcc 
-I/opt/hp/gcc/gcc/config -I/opt/hp/gcc/gcc/../include /opt/hp/gcc/gcc/real.c
/usr/include/bits/string2.h: In function `__stpcpy_small':
In file included from /usr/include/string.h:346,
                  from /opt/hp/gcc/gcc/system.h:176,
                  from /opt/hp/gcc/gcc/real.c:25:
/usr/include/bits/string2.h:611: warning: pointer targets in return differ 
in signedness
gcc -c -DCROSS_COMPILE -DIN_GCC    -g -O2 -W -Wall -Wtraditional 
-Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic 
-Wno-long-long  -DHAVE_CONFIG_H    -I. -I/opt/hp/gcc/gcc 
-I/opt/hp/gcc/gcc/config -I/opt/hp/gcc/gcc/../include 
/opt/hp/gcc/gcc/builtins.c
/usr/include/bits/string2.h: In function `__stpcpy_small':
In file included from /usr/include/string.h:346,
                  from /opt/hp/gcc/gcc/system.h:176,
                  from /opt/hp/gcc/gcc/builtins.c:23:
/usr/include/bits/string2.h:611: warning: pointer targets in return differ 
in signedness
gcc -DCROSS_COMPILE -DIN_GCC    -g -O2 -W -Wall -Wtraditional 
-Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic 
-Wno-long-long  -DHAVE_CONFIG_H    -I. -I/opt/hp/gcc/gcc 
-I/opt/hp/gcc/gcc/config -I/opt/hp/gcc/gcc/../include \
   -DLOCALEDIR=\"/opt/hpboot/share/locale\" \
   -c `echo /opt/hp/gcc/gcc/intl.c | sed 's,^\./,,'`
gcc -c -DCROSS_COMPILE -DIN_GCC    -g -O2 -W -Wall -Wtraditional 
-Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic 
-Wno-long-long  -DHAVE_CONFIG_H    -I. -I/opt/hp/gcc/gcc 
-I/opt/hp/gcc/gcc/config -I/opt/hp/gcc/gcc/../include /opt/hp/gcc/gcc/varasm.c
/usr/include/bits/string2.h: In function `__stpcpy_small':
In file included from /usr/include/string.h:346,
                  from /opt/hp/gcc/gcc/system.h:176,
                  from /opt/hp/gcc/gcc/varasm.c:31:
/usr/include/bits/string2.h:611: warning: pointer targets in return differ 
in signedness
gcc -c -DCROSS_COMPILE -DIN_GCC    -g -O2 -W -Wall -Wtraditional 
-Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic 
-Wno-long-long  -DHAVE_CONFIG_H    -I. -I/opt/hp/gcc/gcc -I/opt/hp/gcc/gcc/c


At 02:27 PM 10/26/00 +1100, Alan Modra wrote:
>On Wed, 25 Oct 2000, Kailashnath V Rampure wrote:
>
> > Hi
> >
> > I have upgraded to GNU Make version 3.79.1 but when i run make its is
> > giving following error:
> >
> > Regards
> > Kailas
> >
> > hppa-linux-gcc -nostdlib -nostartfiles -r -o 
> /opt/hp/build/glibc/csu/crt1.o
> > /opt/hp/build/glibc/csu/start.o /opt/hp/build/glibc/csu/abi-note.o
> > /opt/hp/build/glibc/csu/init.o
> > hppa-linux-gcc -nostdlib -nostartfiles -r -o
> > /opt/hp/build/glibc/csu/gcrt1.o /opt/hp/build/glibc/csu/crt1.o
> > /opt/hp/build/glibc/csu/gmon-start.o
> > cp /dev/null /opt/hp/build/glibc/csu/Mcrt1.c
>
>Hmm, my make.log shows a difference here.  I have echo > ...Mcrt1.c, which
>creates a 1 byte dummy file rather than the zero byte file you get from cp
>/dev/null.  Bombing on an empty input file is a known gcc bug for the
>snapshot we took of the Cygnus development gcc sources.
>
>I suggest you update your glibc sources.
>
>--
>Linuxcare.  Support for the Revolution.
>
>---------------------------------------------------------------------------
>To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.

--=====================_5144707==_.ALT
Content-Type: text/html; charset="us-ascii"

<html>
HI alan,<br>
<br>
I did upgrade to latest glibc from the cvs and tried I still get the same
error. Actually I restarted from scratch starting from binutils. I have
seen some warning while I built gcc. The smallpart of gcc warnings are as
follows:<br>
<br>
Gcc warnings:<br>
<br>
prototypes -pedantic -Wno-long-long&nbsp;
-DHAVE_CONFIG_H&nbsp;&nbsp;&nbsp; -I. -I/opt/hp/gcc/gcc
-I/opt/hp/gcc/gcc/config -I/opt/hp/gcc/gcc/../include
/opt/hp/gcc/gcc/explow.c<br>
/usr/include/bits/string2.h: In function `__stpcpy_small':<br>
In file included from /usr/include/string.h:346,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
from /opt/hp/gcc/gcc/system.h:176,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
from /opt/hp/gcc/gcc/explow.c:24:<br>
<b>/usr/include/bits/string2.h:611: warning: pointer targets in return
differ in signedness<br>
</b>gcc -c -DCROSS_COMPILE -DIN_GCC&nbsp;&nbsp;&nbsp; -g -O2 -W -Wall
-Wtraditional -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-pedantic -Wno-long-long&nbsp; -DHAVE_CONFIG_H&nbsp;&nbsp;&nbsp; -I.
-I/opt/hp/gcc/gcc -I/opt/hp/gcc/gcc/config -I/opt/hp/gcc/gcc/../include
/opt/hp/gcc/gcc/optabs.c<br>
/usr/include/bits/string2.h: In function `__stpcpy_small':<br>
In file included from /usr/include/string.h:346,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
from /opt/hp/gcc/gcc/system.h:176,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
from /opt/hp/gcc/gcc/optabs.c:24:<br>
/usr/include/bits/string2.h:611: warning: pointer targets in return
differ in signedness<br>
gcc -c -DCROSS_COMPILE -DIN_GCC&nbsp;&nbsp;&nbsp; -g -O2 -W -Wall
-Wtraditional -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-pedantic -Wno-long-long&nbsp; -DHAVE_CONFIG_H&nbsp;&nbsp;&nbsp; -I.
-I/opt/hp/gcc/gcc -I/opt/hp/gcc/gcc/config -I/opt/hp/gcc/gcc/../include
/opt/hp/gcc/gcc/real.c<br>
/usr/include/bits/string2.h: In function `__stpcpy_small':<br>
In file included from /usr/include/string.h:346,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
from /opt/hp/gcc/gcc/system.h:176,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
from /opt/hp/gcc/gcc/real.c:25:<br>
<b>/usr/include/bits/string2.h:611: warning: pointer targets in return
differ in signedness<br>
</b>gcc -c -DCROSS_COMPILE -DIN_GCC&nbsp;&nbsp;&nbsp; -g -O2 -W -Wall
-Wtraditional -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-pedantic -Wno-long-long&nbsp; -DHAVE_CONFIG_H&nbsp;&nbsp;&nbsp; -I.
-I/opt/hp/gcc/gcc -I/opt/hp/gcc/gcc/config -I/opt/hp/gcc/gcc/../include
/opt/hp/gcc/gcc/builtins.c<br>
/usr/include/bits/string2.h: In function `__stpcpy_small':<br>
In file included from /usr/include/string.h:346,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
from /opt/hp/gcc/gcc/system.h:176,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
from /opt/hp/gcc/gcc/builtins.c:23:<br>
/usr/include/bits/string2.h:611: warning: pointer targets in return
differ in signedness<br>
gcc -DCROSS_COMPILE -DIN_GCC&nbsp;&nbsp;&nbsp; -g -O2 -W -Wall
-Wtraditional -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-pedantic -Wno-long-long&nbsp; -DHAVE_CONFIG_H&nbsp;&nbsp;&nbsp; -I.
-I/opt/hp/gcc/gcc -I/opt/hp/gcc/gcc/config -I/opt/hp/gcc/gcc/../include
\<br>
&nbsp; -DLOCALEDIR=\&quot;/opt/hpboot/share/locale\&quot; \<br>
&nbsp; -c `echo /opt/hp/gcc/gcc/intl.c | sed 's,^\./,,'`<br>
gcc -c -DCROSS_COMPILE -DIN_GCC&nbsp;&nbsp;&nbsp; -g -O2 -W -Wall
-Wtraditional -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-pedantic -Wno-long-long&nbsp; -DHAVE_CONFIG_H&nbsp;&nbsp;&nbsp; -I.
-I/opt/hp/gcc/gcc -I/opt/hp/gcc/gcc/config -I/opt/hp/gcc/gcc/../include
/opt/hp/gcc/gcc/varasm.c<br>
/usr/include/bits/string2.h: In function `__stpcpy_small':<br>
In file included from /usr/include/string.h:346,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
from /opt/hp/gcc/gcc/system.h:176,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
from /opt/hp/gcc/gcc/varasm.c:31:<br>
/usr/include/bits/string2.h:611: warning: pointer targets in return
differ in signedness<br>
gcc -c -DCROSS_COMPILE -DIN_GCC&nbsp;&nbsp;&nbsp; -g -O2 -W -Wall
-Wtraditional -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-pedantic -Wno-long-long&nbsp; -DHAVE_CONFIG_H&nbsp;&nbsp;&nbsp; -I.
-I/opt/hp/gcc/gcc -I/opt/hp/gcc/gcc/c<br>
<br>
<br>
At 02:27 PM 10/26/00 +1100, Alan Modra wrote:<br>
<blockquote type=cite class=cite cite>On Wed, 25 Oct 2000, Kailashnath V
Rampure wrote:<br>
<br>
&gt; Hi<br>
&gt; <br>
&gt; I have upgraded to GNU Make version 3.79.1 but when i run make its
is <br>
&gt; giving following error:<br>
&gt; <br>
&gt; Regards<br>
&gt; Kailas<br>
&gt; <br>
&gt; hppa-linux-gcc -nostdlib -nostartfiles -r -o
/opt/hp/build/glibc/csu/crt1.o <br>
&gt; /opt/hp/build/glibc/csu/start.o /opt/hp/build/glibc/csu/abi-note.o
<br>
&gt; /opt/hp/build/glibc/csu/init.o<br>
&gt; hppa-linux-gcc -nostdlib -nostartfiles -r -o <br>
&gt; /opt/hp/build/glibc/csu/gcrt1.o /opt/hp/build/glibc/csu/crt1.o 
<br>
&gt; /opt/hp/build/glibc/csu/gmon-start.o<br>
&gt; cp /dev/null /opt/hp/build/glibc/csu/Mcrt1.c<br>
<br>
Hmm, my make.log shows a difference here.&nbsp; I have echo &gt;
...Mcrt1.c, which<br>
creates a 1 byte dummy file rather than the zero byte file you get from
cp<br>
/dev/null.&nbsp; Bombing on an empty input file is a known gcc bug for
the<br>
snapshot we took of the Cygnus development gcc sources.<br>
<br>
I suggest you update your glibc sources.<br>
<br>
-- <br>
Linuxcare.&nbsp; Support for the Revolution.<br>
<br>
---------------------------------------------------------------------------<br>
To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com
with<br>
`unsubscribe' as the subject.</blockquote></html>

--=====================_5144707==_.ALT--


From - Thu Nov 08 21:13:49 2018
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From: "Thomas Marteau" <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] The new PS/2 Keyboard Driver
Date: Thu, 26 Oct 2000 22:05:08 +0200
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	charset="iso-8859-1"
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Hello everyone,

We've just updated the PS/2 keyboard driver. The leds and interrupt
functions work really well on a 712 workstation and also B132 now. The
updated driver files are available on our website. It works better than
under HP UX for the B 132 ;->

http://www.esiee.fr/~djoudim

The ESIEE Port Team in Paris.

Here is the patch:

diff -urN linux/drivers/char/gsc_ps2.c linux-parisc/drivers/char/gsc_ps2.c
--- linux/drivers/char/gsc_ps2.c Thu Oct 26 21:06:54 2000
+++ linux-parisc/drivers/char/gsc_ps2.c Thu Oct 26 21:34:00 2000
@@ -7,6 +7,11 @@
  *
  * Okay, the filename is somewhat suboptimal.  It turns out this
  *  will work for Dino's psaux ports as well.
+ *
+ * 2000/10/26 Debacker Xavier (debackex@esiee.fr)
+ *   Marteau Thomas (marteaut@esiee.fr)
+ *    Djoudi Malek (djoudim@esiee.fr)
+ * fixed leds control
  */

 #include <asm/hardware.h>
@@ -198,7 +203,7 @@

 static void lasi_kbd_interrupt(int irq, void *dev, struct pt_regs *regs)
 {
- void *hpa = dev;
+ hpa = dev;

  kbd_pt_regs = regs;

@@ -233,6 +238,7 @@
 static struct kbd_ops gsc_ps2_kbd_ops = {
  translate: pckbd_translate,
  init_hw: gsc_ps2_init_hw,
+ leds:  ps2kbd_leds,
  sysrq_key: 0x54,
  sysrq_xlate: pckbd_sysrq_xlate,
 };
diff -urN linux/drivers/char/keyb_at.c linux-parisc/drivers/char/keyb_at.c
--- linux/drivers/char/keyb_at.c Thu Oct 26 21:07:00 2000
+++ linux-parisc/drivers/char/keyb_at.c Thu Oct 26 21:23:16 2000
@@ -47,7 +47,12 @@
 #define CODE_ESCAPE12 8

 #define K_NONE  0x7f
-
+/*
+ * 2000/10/26 Debacker Xavier (debackex@esiee.fr)
+ *  Marteau Thomas (marteaut@esiee.fr)
+ *  Djoudi Malek (djoudim@esiee.fr)
+ * fixed some keysym defines and SC_LIM
+ */
 #define K_ESC  0x01
 #define K_F1  0x3b
 #define K_F2  0x3c
@@ -79,8 +84,8 @@
 #define K_EQLS  0x0d
 #define K_BKSP  0x0e
 #define K_INS  110
-#define K_HOME  K_NONE
-#define K_PGUP  K_NONE
+#define K_HOME  102
+#define K_PGUP  104
 #define K_NUML  69
 #define KP_SLH  0x62
 #define KP_STR  0x37
@@ -99,9 +104,9 @@
 #define K_LSBK  0x1a
 #define K_RSBK  0x1b
 #define K_ENTR  0x1c
-#define K_DEL  0xe
-#define K_END  K_NONE
-#define K_PGDN  K_NONE
+#define K_DEL  111
+#define K_END  107
+#define K_PGDN  109
 #define KP_7  0x47
 #define KP_8  0x48
 #define KP_9  0x49
@@ -234,7 +239,7 @@
  * they needed not before. It does not matter that there are duplicates, as
  * long as no duplication occurs for any single keyboard.
  */
-#define SC_LIM 89
+#define SC_LIM 128

 #define FOCUS_PF1 85           /* actual code! */
 #define FOCUS_PF2 89


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	name="keyb.patch"
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	filename="keyb.patch"

diff -urN linux/drivers/char/gsc_ps2.c =
linux-parisc/drivers/char/gsc_ps2.c=0A=
--- linux/drivers/char/gsc_ps2.c	Thu Oct 26 21:06:54 2000=0A=
+++ linux-parisc/drivers/char/gsc_ps2.c	Thu Oct 26 21:34:00 2000=0A=
@@ -7,6 +7,11 @@=0A=
  *=0A=
  *	Okay, the filename is somewhat suboptimal.  It turns out this=0A=
  * 	will work for Dino's psaux ports as well.=0A=
+ *=0A=
+ *	2000/10/26	Debacker Xavier (debackex@esiee.fr)=0A=
+ *			Marteau Thomas (marteaut@esiee.fr)=0A=
+ * 			Djoudi Malek (djoudim@esiee.fr)=0A=
+ *	fixed leds control=0A=
  */=0A=
 =0A=
 #include <asm/hardware.h>=0A=
@@ -198,7 +203,7 @@=0A=
 =0A=
 static void lasi_kbd_interrupt(int irq, void *dev, struct pt_regs *regs)=0A=
 {=0A=
-	void *hpa =3D dev;=0A=
+	hpa =3D dev;=0A=
 =0A=
 	kbd_pt_regs =3D regs;=0A=
 =0A=
@@ -233,6 +238,7 @@=0A=
 static struct kbd_ops gsc_ps2_kbd_ops =3D {=0A=
 	translate:	pckbd_translate,=0A=
 	init_hw:	gsc_ps2_init_hw,=0A=
+	leds:		ps2kbd_leds,=0A=
 	sysrq_key:	0x54,=0A=
 	sysrq_xlate:	pckbd_sysrq_xlate,=0A=
 };=0A=
diff -urN linux/drivers/char/keyb_at.c =
linux-parisc/drivers/char/keyb_at.c=0A=
--- linux/drivers/char/keyb_at.c	Thu Oct 26 21:07:00 2000=0A=
+++ linux-parisc/drivers/char/keyb_at.c	Thu Oct 26 21:23:16 2000=0A=
@@ -47,7 +47,12 @@=0A=
 #define CODE_ESCAPE12	8=0A=
 =0A=
 #define K_NONE		0x7f=0A=
-=0A=
+/*=0A=
+ * 2000/10/26	Debacker Xavier (debackex@esiee.fr)=0A=
+ *		Marteau Thomas (marteaut@esiee.fr)=0A=
+ *		Djoudi Malek (djoudim@esiee.fr)=0A=
+ * fixed some keysym defines and SC_LIM=0A=
+ */=0A=
 #define K_ESC		0x01=0A=
 #define K_F1		0x3b=0A=
 #define K_F2		0x3c=0A=
@@ -79,8 +84,8 @@=0A=
 #define K_EQLS		0x0d=0A=
 #define K_BKSP		0x0e=0A=
 #define K_INS		110=0A=
-#define K_HOME		K_NONE=0A=
-#define K_PGUP		K_NONE=0A=
+#define K_HOME		102=0A=
+#define K_PGUP		104=0A=
 #define K_NUML		69=0A=
 #define KP_SLH		0x62=0A=
 #define KP_STR		0x37=0A=
@@ -99,9 +104,9 @@=0A=
 #define K_LSBK		0x1a=0A=
 #define K_RSBK		0x1b=0A=
 #define K_ENTR		0x1c=0A=
-#define K_DEL		0xe=0A=
-#define K_END		K_NONE=0A=
-#define K_PGDN		K_NONE=0A=
+#define K_DEL		111=0A=
+#define K_END		107=0A=
+#define K_PGDN		109=0A=
 #define KP_7		0x47=0A=
 #define KP_8		0x48=0A=
 #define KP_9		0x49=0A=
@@ -234,7 +239,7 @@=0A=
  * they needed not before. It does not matter that there are =
duplicates, as=0A=
  * long as no duplication occurs for any single keyboard.=0A=
  */=0A=
-#define SC_LIM 89=0A=
+#define SC_LIM 128=0A=
 =0A=
 #define FOCUS_PF1 85           /* actual code! */=0A=
 #define FOCUS_PF2 89=0A=

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From: Ulrich Drepper <drepper@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: __FUNCTION__ revisited
Date: 26 Oct 2000 13:13:47 -0700
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To: Grant Grundler <grundler@cup.hp.com>
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Grant Grundler <grundler@cup.hp.com> writes:

> After RTFMing for a bit, I still think __FUNCTION__ is b0rken.
> Maybe I'm doing something else stupid that's obvious to you.

I don't know what kind of problem you are seeing.  It certainly works
for me on x86, Arm, PPC.  It's used in the implementation of assert()
so it better should be.  Maybe the compiler branch you are using is
cut at an unfortunate moment when the people who are rewriting the
preprocessor broke something.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


From - Thu Nov 08 21:13:49 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc problem
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Cc: alan@linuxcare.com.au, parisc-linux@thepuffingroup.com
To: kailasr@webcash.com (Kailashnath V Rampure)
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In-Reply-To: <5.0.0.25.0.20001026125217.00a43eb0@mail.webcash.com> from "Kailashnath V Rampure" at Oct 26, 2000 12:56:47 pm
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Xref: news.gmane.org gmane.linux.ports.parisc:8227

> I did upgrade to latest glibc from the cvs and tried I still get the same 
> error. Actually I restarted from scratch starting from binutils. I have 
> seen some warning while I built gcc. The smallpart of gcc warnings are as 
> follows:
> 
> Gcc warnings:
> 
> prototypes -pedantic -Wno-long-long  -DHAVE_CONFIG_H    -I. 
> -I/opt/hp/gcc/gcc -I/opt/hp/gcc/gcc/config -I/opt/hp/gcc/gcc/../include 
> /opt/hp/gcc/gcc/explow.c
> /usr/include/bits/string2.h: In function `__stpcpy_small':
> In file included from /usr/include/string.h:346,
>                   from /opt/hp/gcc/gcc/system.h:176,
>                   from /opt/hp/gcc/gcc/explow.c:24:
> /usr/include/bits/string2.h:611: warning: pointer targets in return differ 
> in signedness

I think the enclosed patch to bits/string2.h may fix your gcc warnings.
Doubt this is your real problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2000-09-22  J. David Anglin  <dave@hiauly1.hia.nrc.ca>

	* string.h (__stpcpy_small): Correct return type.
	(strnlen): Correct return type in conditional expression.

--- string2.h.orig	Tue Sep  5 08:22:56 2000
+++ string2.h	Fri Sep 22 15:22:27 2000
@@ -608,7 +608,7 @@
       __u = __extension__ ((void *) __u + 3);
       break;
     }
-  return &__u->__uc;
+  return (char *) __u;
 }
 #  else
 #  define __stpcpy_args(src) \
@@ -1025,7 +1025,7 @@
 strnlen (__const char *__string, size_t __maxlen)
 {
   __const char *__end = (__const char *) memchr (__string, '\0', __maxlen);
-  return __end ? __end - __string : __maxlen;
+  return __end ? (size_t) (__end - __string) : __maxlen;
 }
 # endif
 #endif


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New cross-compiler available
Date: Thu, 26 Oct 2000 15:16:08 -0600
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I have placed a new x86/Linux -> hppa/Linux cross-compiler at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20001026.tar.gz

It contains 32/64bit compilers/binutils and a 32bit glibc. Untar it in /, it 
lives in /opt/palinux.

-- 
Matt Taggart
taggart@fc.hp.com



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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc problem
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Cc: Alan Modra <alan@linuxcare.com.au>, parisc-linux@thepuffingroup.com
To: Kailashnath V Rampure <kailasr@webcash.com>
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In-Reply-To: Message from Kailashnath V Rampure <kailasr@webcash.com> 
   of "Thu, 26 Oct 2000 12:56:47 PDT." <5.0.0.25.0.20001026125217.00a43eb0@mail.webcash.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:8229


> I did upgrade to latest glibc from the cvs and tried I still get the same 
> error. Actually I restarted from scratch starting from binutils. I have 
> seen some warning while I built gcc. The smallpart of gcc warnings are as 
> follows:
[snip]
> /usr/include/bits/string2.h: In function `__stpcpy_small':
> In file included from /usr/include/string.h:346,
>                   from /opt/hp/gcc/gcc/system.h:176,
>                   from /opt/hp/gcc/gcc/explow.c:24:
> /usr/include/bits/string2.h:611: warning: pointer targets in return differ 

I don't think you want to be using the system includes. Perhaps you need to be 
using the --with-headers= option and point it at your include directory. You 
can get an include tarball from,

ftp://puffin.external.hp.com/pub/parisc/src/include-latest.tar.gz

Unless you really want to hack the toolchain I would recommend the prebuilt 
cross-compiler available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-latest.tar.gz

If you *do* want to hack the toolchain the build-tools cvs module has several 
scripts that can help you with building.

-- 
Matt Taggart
taggart@fc.hp.com



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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc problem
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On Thu, 26 Oct 2000, Kailashnath V Rampure wrote:

> I did upgrade to latest glibc from the cvs and tried I still get the same 
> error.

Did you upgrade from the CVS repository on puffin.external.hp.com?  Please
check glibc/csu/Makefile.  Starting at line 160, you should see

$(addprefix $(objpfx),$(filter-out $(start-installed-name),$(csu-dummies))):
	@-rm -f $(@:.o=.c)
	echo > $(@:.o=.c)
	$(COMPILE.c) $(@:.o=.c) $(OUTPUT_OPTION)
	rm -f $(@:.o=.c)

-- 
Linuxcare.  Support for the Revolution.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] boot c3k from local scsi
Date: Thu, 26 Oct 2000 16:31:44 -0700 (PDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:8231

Hi all,

I managed to setup/boot my c3k via NFS Root.
I'm using an add-on serial card as console since built-in serial
isn't working (yet).

Partitioning an 18GB disk was a problem. Both PALO and IODC have
limitations on where the PALO and boot filesystem partitions can reside.
Read the PALO docs at
	http://puffin.external.hp.com/cgi-bin/cvsview/palo/README.html
for details. It's a good, short, document.

Here's my resulting fdisk output:
Disk /dev/sda: 64 heads, 32 sectors, 17366 cylinders
Units = cylinders of 2048 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sda1             1        11     11248   f0  Unknown
/dev/sda2            12        32     21504   83  Linux
/dev/sda3            33       545    525312   82  Linux swap
/dev/sda4           546      4642   4195328   83  Linux


and /etc/fstab contents:
# <file system> <mount> <type>  <options>                       <dump> <pass>
/dev/sda4       /       ext2    defaults,errors=remount-ro      0       0
/dev/sda3       none    swap    sw                              0       0
/dev/sda2       /boot   ext2    defaults,errors=remount-ro      0       0
proc            /proc   proc    defaults                        0       0


Oh - the palo command I used to get this work might be good
to pass on too:
	# palo -I -k /tmp/vmlinux -b /boot/iplboot \
		-c '2/vmlinux TERM=linux HOME=/ root=/dev/sda4' \
		/dev/sda

(I had copied a more current vmlinux to my NFS root's /tmp dir)

enjoy!
grant


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From: Christopher Beard <cjbeard@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Building the Bootstrap Code
Date: Sat, 17 Apr 1999 23:27:22 +0000 (   )
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There was confusion earlier, so, here's a quick and dirty method for
building the bootstrap code that Jason Eckardt distributed and which is
currently in CVS under ``linux/arch/parisc/boot''

You will need to build the ``ipl'' binary using gcc 2.8.1, binutils 2.9.1
and HP's linker under HP/UX as the cross-compiling tool chain is currently
broken.

  i_addr  = 4096   # constant
  i_size  = 45056  # size of the stripped ipl binary
  i_entry = 4096   # < i_size
  k_addr  = 49152  # i_size + 4096
  k_size  = 28672  # size of the dummy_kernel
  k_entry = 4096   # < k_size

  strip ipl
  ../boot_tools/mkipl ipl
  ../boot_tools/mklifhdr hdr $i_addr $i_size $i_entry $k_addr $k_size $k_entry
  cat hdr pad_file ipl vmlinux > bootstrap.bin

This will produce a viable LIF volume that you can write to media or bootp
from. Again, this is pretty nasty, and is very temporarily until we teach
it how to read file systems.

- Chris


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] The new PS/2 Keyboard Driver
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To: "Thomas Marteau" <marteaut@esiee.fr>, <parisc-linux@thepuffingroup.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:8233

On Thursday 26 October 2000 22:05, Thomas Marteau wrote:

> > 
> Hello everyone,
> 
> We've just updated the PS/2 keyboard driver. The leds and interrupt
> functions work really well on a 712 workstation and also B132 now. The
> updated driver files are available on our website. It works better than
> under HP UX for the B 132 ;->
> 
> http://www.esiee.fr/~djoudim
> 
> The ESIEE Port Team in Paris.
> 
> Here is the patch:
> 
> diff -urN linux/drivers/char/gsc_ps2.c linux-parisc/drivers/char/gsc_ps2.c
> --- linux/drivers/char/gsc_ps2.c Thu Oct 26 21:06:54 2000
> +++ linux-parisc/drivers/char/gsc_ps2.c Thu Oct 26 21:34:00 2000
> @@ -7,6 +7,11 @@
>  [.............]

> diff -urN linux/drivers/char/keyb_at.c linux-parisc/drivers/char/keyb_at.c
> --- linux/drivers/char/keyb_at.c Thu Oct 26 21:07:00 2000
> +++ linux-parisc/drivers/char/keyb_at.c Thu Oct 26 21:23:16 2000
> [........]

Hi Thomas,

Thanks for your patch. 
But I don't think it's a good idea to change a common file like keyb_at.c, 
which is used in most other arches too. This patch surely breaks their 
keyboard support and more than that I'm sure, that Linus will not accept this 
patch, when the time is come to integrate parisc into the official kernel.

Isn't there any other solution as for example to #ifdef the code or create a 
new keyb_at.c for parisc (Yes I know, both of those aren't clean too.) ?

Helge Deller


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Yes the line is there.

At 10:03 AM 10/27/00 +1100, Alan Modra wrote:
>On Thu, 26 Oct 2000, Kailashnath V Rampure wrote:
>
> > I did upgrade to latest glibc from the cvs and tried I still get the same
> > error.
>
>Did you upgrade from the CVS repository on puffin.external.hp.com?  Please
>check glibc/csu/Makefile.  Starting at line 160, you should see
>
>$(addprefix $(objpfx),$(filter-out $(start-installed-name),$(csu-dummies))):
>         @-rm -f $(@:.o=.c)
>         echo > $(@:.o=.c)
>         $(COMPILE.c) $(@:.o=.c) $(OUTPUT_OPTION)
>         rm -f $(@:.o=.c)
>
>--
>Linuxcare.  Support for the Revolution.
>
>---------------------------------------------------------------------------
>To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.


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On Thu, 26 Oct 2000, Kailashnath V Rampure wrote:

> Yes the line is there.

OK, that should mean you no longer get zero length .c files created with
"cp /dev/null file"  Is that the case?  If you still see zero length files
in glibc/csu, then maybe that's because "make clean" didn't remove
them.  Just delete them.

-- 
Linuxcare.  Support for the Revolution.


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Subject: [parisc-linux] Make palo problem
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    * I have down loaded the latest prebuilt cross-compiler  and untared it 
the a directory by name DEST
    * I have downloaded the Latest linux  and palo files from the cvs. the 
after uncompresing them I run the following command from the ~/linux directory
    * Changed the line in Palo/Makefile  for my system IP Address
    * exported PATH=$DEST/bin:$PATH
    * the cd ~/linux
    * make oldconfig
    * make dep
    * make clean
    * make palo
If so the I am getting the following error after running make palo
cd palo && make
make[2]: Entering directory `/cvs/palo/palo'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/cvs/palo/palo'
cd ipl && make
make[2]: Entering directory `/cvs/palo/ipl'
echo "char *bld_info = \"`whoami`@`hostname` `date`\";" > build.c
hppa-linux-gcc -I. -I../lib -I../include -O2 -fwritable-strings 
-mdisable-fpregs -Wall -c -o build.o build.c
rm -f build.c
hppa-linux-ld -N --Ttext 0x500000 -e '$START$' -o iplelf crt0.o ipl.a 
build.o `hppa-linux-gcc -print-libgcc-file-name`
ipl.a: could not read symbols: Archive has no index; run ranlib to add one
make[2]: *** [iplelf] Error 1
make[2]: Leaving directory `/cvs/palo/ipl'
make[1]: *** [makeipl] Error 2
make[1]: Leaving directory `/cvs/palo'
make: *** [palo] Error 2

--=====================_23220339==_.ALT
Content-Type: text/html; charset="us-ascii"

<html>

<ul>
<li>I have down loaded the latest prebuilt cross-compiler&nbsp; and
untared it the a directory by name DEST
<li>I have downloaded the Latest linux&nbsp; and palo files from the cvs.
the after uncompresing them I run the following command from the ~/linux
directory
<li>Changed the line in Palo/Makefile&nbsp; for my system IP Address
<li>exported PATH=$DEST/bin:$PATH
<li>the cd ~/linux
<li>make oldconfig
<li>make dep
<li>make clean
<li>make palo
</ul>If so the I am getting the following error after running make
palo<br>
cd palo &amp;&amp; make<br>
make[2]: Entering directory `/cvs/palo/palo'<br>
make[2]: Nothing to be done for `all'.<br>
make[2]: Leaving directory `/cvs/palo/palo'<br>
cd ipl &amp;&amp; make<br>
make[2]: Entering directory `/cvs/palo/ipl'<br>
echo &quot;char *bld_info = \&quot;`whoami`@`hostname`
`date`\&quot;;&quot; &gt; build.c<br>
hppa-linux-gcc -I. -I../lib -I../include -O2 -fwritable-strings
-mdisable-fpregs -Wall -c -o build.o build.c<br>
rm -f build.c<br>
hppa-linux-ld -N --Ttext 0x500000 -e '$START$' -o iplelf crt0.o ipl.a
build.o `hppa-linux-gcc -print-libgcc-file-name`<br>
ipl.a: could not read symbols: Archive has no index; run ranlib to add
one<br>
make[2]: *** [iplelf] Error 1<br>
make[2]: Leaving directory `/cvs/palo/ipl'<br>
make[1]: *** [makeipl] Error 2<br>
make[1]: Leaving directory `/cvs/palo'<br>
make: *** [palo] Error 2<br>
</html>

--=====================_23220339==_.ALT--


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] Make palo problem
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Kailashnath V Rampure writes...

>     * I have down loaded the latest prebuilt cross-compiler  and untared it 
> the a directory by name DEST

For that tarball, you need to untar in / which will put the compiler tree in 
/opt/palinux. If it's not there the compiler will not be able to find it's 
resources. Is that what you did?

I will update the web page to make this more clear.

HTH,

-- 
Matt Taggart
taggart@fc.hp.com



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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Make palo problem
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On Friday 27 October 2000 02:58, Kailashnath V Rampure wrote:

> > 
>     * I have down loaded the latest prebuilt cross-compiler  and untared it 
> the a directory by name DEST
>     * I have downloaded the Latest linux  and palo files from the cvs. the 
> after uncompresing them I run the following command from the ~/linux 
directory
>     * Changed the line in Palo/Makefile  for my system IP Address
>     * exported PATH=$DEST/bin:$PATH
>     * the cd ~/linux
>     * make oldconfig
>     * make dep
>     * make clean
>     * make palo
> If so the I am getting the following error after running make palo
> cd palo && make
> make[2]: Entering directory `/cvs/palo/palo'
> make[2]: Nothing to be done for `all'.
> make[2]: Leaving directory `/cvs/palo/palo'
> cd ipl && make
> make[2]: Entering directory `/cvs/palo/ipl'
> echo "char *bld_info = \"`whoami`@`hostname` `date`\";" > build.c
> hppa-linux-gcc -I. -I../lib -I../include -O2 -fwritable-strings 
> -mdisable-fpregs -Wall -c -o build.o build.c
> rm -f build.c
> hppa-linux-ld -N --Ttext 0x500000 -e '$START$' -o iplelf crt0.o ipl.a 
> build.o `hppa-linux-gcc -print-libgcc-file-name`
> ipl.a: could not read symbols: Archive has no index; run ranlib to add one
> make[2]: *** [iplelf] Error 1
> make[2]: Leaving directory `/cvs/palo/ipl'
> make[1]: *** [makeipl] Error 2
> make[1]: Leaving directory `/cvs/palo'
> make: *** [palo] Error 2
> 

you need to go to /palo/ipl and do  "hppa-linux-ranlib ipl.a". Then go back 
to /linux and do a "make palo" again.

This is a common problem, in which I also run every time if /palo changes. 
Matt/Paul: can't we fix this in the Makefile ?

Helge.


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= > ipl.a: could not read symbols: Archive has no index; run ranlib to add one
= > make[2]: *** [iplelf] Error 1
= > make[2]: Leaving directory `/cvs/palo/ipl'
= > make[1]: *** [makeipl] Error 2
= > make[1]: Leaving directory `/cvs/palo'
= > make: *** [palo] Error 2
= > 
= 
= you need to go to /palo/ipl and do  "hppa-linux-ranlib ipl.a". Then go back 
= to /linux and do a "make palo" again.
= 
= This is a common problem, in which I also run every time if /palo changes. 
= Matt/Paul: can't we fix this in the Makefile ?

I changed ipl/Makefile to use hppa-linux-ar rather than ar.  No
ranlib is required in this case.

Prior to this the native host's ar was being used.  Mine 
(GNU ar 2.9.5) has always
worked without need of an extra ranlib step but I guess that's not
true for everyone.  People using 'ar' which requires a following ranlib
should probably insert a ranlib line into palo/palo/Makefile after
the 'ar' there.  Just how likely is it to find this type of ar on
Linux these days?

	-P


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To: Grant Grundler <grundler@cup.hp.com>
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On Thu, 26 Oct 2000, Grant Grundler wrote:

> 	DBG_RUN_SG("%s() DONE %d mappings\n", __FUNCTION__, n_mappings);
> 
> The output I get looks like "() DONE 16 mappings".
> No complaints from compiler or linker.

Here's a weird datapoint.

cat > xxx.c <<EOF
#include <stdio.h>

#define DEBUG_SBA_RUN_SG

#ifdef DEBUG_SBA_RUN_SG
#define DBG_RUN_SG(x...)       printf(x)
#else
#define DBG_RUN_SG(x...)
#endif


int foo (int i)
{
  DBG_RUN_SG("%s() DONE %d mappings\n", __FUNCTION__, i);
  return i;
}

int main (void)
{
  return foo (0);
}
EOF
hppa-linux-gcc -S -O2 -o xxx.s xxx.c

shows that __FUNCTION__ is being translated as an empty string.  The
really weird bit is that if you remove "#include <stdio.h>", everything is
OK!

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] __FUNCTION__ revisited
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On Sat, 28 Oct 2000, Alan Modra wrote:

> shows that __FUNCTION__ is being translated as an empty string.  The
> really weird bit is that if you remove "#include <stdio.h>", everything is
> OK!

Seems to be related to the swag of __inline functions you get from
bits/stdio.h.  Editting a .i to remove them cures the problem.  Gack, yet
another compiler bug - in yesterday's hppa64-hpux CVS gcc from sourceware
too.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: [parisc-linux] Beta CD
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--TiqCXmo5T1hvSQQg
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Hello everyone,

I am in the process of creating a new Beta CD for Linux on PA-RISC.
Currently the CD will include the following:

All the latest Debian packages
Slightly modified Debian base as / (this is because standard debian
  expects r/w root environment)
Cross-compiling tools for x86
READMEs, etc.. to help bootstrap Linux on a PARISC system.

If there is anything you think should be on it, please send me some
suggestions.  I can't promise they'll all make it, but I'll see what
can be done.

						- Paul

PS:  This will be an online ISO image release only.

--TiqCXmo5T1hvSQQg
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Building the Bootstrap Code
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>   cat hdr pad_file ipl vmlinux > bootstrap.bin

``pad_file'' is a sparse file of zeroes that is 3072 bytes in length.

- Chris


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] scatterlist (de-)construction
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Xref: news.gmane.org gmane.linux.ports.parisc:8244

Dave,
The sg_list's I'm seeing for a simple "dd .. bs=64K" aren't
assembled very nicely. I have two issues with scatterlists:

o why are list entries in 1K sizes instead of NBPG sizes?

o Why are "blocks" *within* the same kernel page "badly" ordered?

I have to confess I have only spent an hour or so reviewing code
and documents for scatter-gather. I'm doing more but thought you
might off-hand know where to look. If these are architecture defined
behaviors, I can fix those.

I've been trying to implement sane/simple coalescing code for one
of the parisc-linux I/O MMU's (sba_iommu.c) and finding the input
scatterlist I have to work with sucks. I've appended the console
output with my debugging info. The algorithm currently attempts
to prepend or append adjacent entries in the scatterlist.
It would be nice if we only had to check the append case.
(Ref http://puffin.external.hp.com/cvs/linux/arch/parisc/kernel/sba_iommu.c)

FYI, parisc-linux is currently based on 2.4.0-test6.
The plan is to merge to something more recent after we cut
a "stable" version in the next week or two. I mention this
in case any work was done since -test6 was posted.

thanks,
grant

ps. I'm also ok with this getting forwarded to l-k though
    I'm not subscribed.

[ notes:
  xx,xx		address,length pair
  xx,xx+yy,yy	checking "current" chunk (xx) + "current" sglist entry (yy)
 (xx,xx)	addr,len "chunk" parameters passed to sba_map_single()
		when algorithm can't safely either prepend or append the
		"current" scatterlist element to the "chunk".

__FUNCTION__ is *broken* for our toolchain and it look like a
generic gcc bug in the current gcc developement tree.  The "()"
are supposed to have function names in front of them.
Magic decoder:
() START 64 entries	sba_map_sg() entry poiny
() DONE 17 mappings	sba_map_sg() exit
() START 64 entries,  dfd7a800,400	sba_unmap_sg() entry w/first pair
() DONE (nents 47)	sba_unmap_sg() exit (after unmapping 17 entries)
]

gggC3000:~# dd if=/dev/sda1 of=/dev/null bs=64k count=5
() START 64 entries
 dfd7a800,400+dfd7ac00,400 dfd7a800,800+dfd7a000,400 (dfd7a800, 800)
 dfd7a000,400+dfd7a400,400 dfd7a000,800+df6ba000,400 (dfd7a000, 800)
 df6ba000,400+df6ba400,400 df6ba000,800+df6ba800,400 df6ba000,c00+df6bac00,400 df6ba000,1000+df6b9000,400 (df6ba000, 1000)
 df6b9000,400+df6b9400,400 df6b9000,800+df6b9800,400 df6b9000,c00+df6b9c00,400 df6b9000,1000+df6b8000,400 (df6b9000, 1000)
 df6b8000,400+df6b8400,400 df6b8000,800+df6b8800,400 df6b8000,c00+df6b8c00,400 df6b8000,1000+df6b7000,400 (df6b8000, 1000)
 df6b7000,400+df6b7400,400 df6b7000,800+df6b7800,400 df6b7000,c00+df6b7c00,400 df6b7000,1000+df6b6000,400 (df6b7000, 1000)
 df6b6000,400+df6b6400,400 df6b6000,800+df6b6800,400 df6b6000,c00+df6b6c00,400 df6b6000,1000+df6b5000,400 (df6b6000, 1000)
 df6b5000,400+df6b5400,400 df6b5000,800+df6b5800,400 df6b5000,c00+df6b5c00,400 df6b5000,1000+df6b4000,400 (df6b5000, 1000)
 df6b4000,400+df6b4400,400 df6b4000,800+df6b4800,400 df6b4000,c00+df6b4c00,400 df6b4000,1000+df6b3000,400 (df6b4000, 1000)
 df6b3000,400+df6b3400,400 df6b3000,800+df6b3800,400 df6b3000,c00+df6b3c00,400 df6b3000,1000+df6b2000,400 (df6b3000, 1000)
 df6b2000,400+df6b2400,400 df6b2000,800+df6b2800,400 df6b2000,c00+df6b2c00,400 df6b2000,1000+df6b1000,400 (df6b2000, 1000)
 df6b1000,400+df6b1400,400 df6b1000,800+df6b1800,400 df6b1000,c00+df6b1c00,400 df6b1000,1000+df6af000,400 (df6b1000, 1000)
 df6af000,400+df6af400,400 df6af000,800+df6af800,400 df6af000,c00+df6afc00,400 df6af000,1000+df6ae000,400 (df6af000, 1000)
 df6ae000,400+df6ae400,400 df6ae000,800+df6ae800,400 df6ae000,c00+df6aec00,400 df6ae000,1000+df6ad000,400 (df6ae000, 1000)
 df6ad000,400+df6ad400,400 df6ad000,800+df6ad800,400 df6ad000,c00+df6adc00,400 df6ad000,1000+df6ac000,400 (df6ad000, 1000)
 df6ac000,400+df6ac400,400 df6ac000,800+df6ac800,400 df6ac000,c00+df6acc00,400 df6ac000,1000+df6ab000,400 (df6ac000, 1000)
 df6ab000,400+df6ab400,400 df6ab000,800+df6ab800,400 df6ab000,c00+df6abc00,400 (0xdf6ab000,1000)
() DONE 17 mappings
() START 64 entries,  dfd7a800,400
() DONE (nents 47)
() START 64 entries
 df69a000,400+df69a400,400 df69a000,800+df69a800,400 df69a000,c00+df69ac00,400 df69a000,1000+df699000,400 (df69a000, 1000)
 df699000,400+df699400,400 df699000,800+df699800,400 df699000,c00+df699c00,400 df699000,1000+df698000,400 (df699000, 1000)
 df698000,400+df698400,400 df698000,800+df698800,400 df698000,c00+df698c00,400 df698000,1000+df697000,400 (df698000, 1000)
 df697000,400+df697400,400 df697000,800+df697800,400 df697000,c00+df697c00,400 df697000,1000+df696000,400 (df697000, 1000)
 df696000,400+df696400,400 df696000,800+df696800,400 df696000,c00+df696c00,400 df696000,1000+df694000,400 (df696000, 1000)
 df694000,400+df694400,400 df694000,800+df694800,400 df694000,c00+df694c00,400 df694000,1000+df693000,400 (df694000, 1000)
 df693000,400+df693400,400 df693000,800+df693800,400 df693000,c00+df693c00,400 df693000,1000+df692000,400 (df693000, 1000)
 df692000,400+df692400,400 df692000,800+df692800,400 df692000,c00+df692c00,400 df692000,1000+df691000,400 (df692000, 1000)
 df691000,400+df691400,400 df691000,800+df691800,400 df691000,c00+df691c00,400 df691000,1000+df690000,400 (df691000, 1000)
 df690000,400+df690400,400 df690000,800+df690800,400 df690000,c00+df690c00,400 df690000,1000+df68f000,400 (df690000, 1000)
 df68f000,400+df68f400,400 df68f000,800+df68f800,400 df68f000,c00+df68fc00,400 df68f000,1000+df68e000,400 (df68f000, 1000)
 df68e000,400+df68e400,400 df68e000,800+df68e800,400 df68e000,c00+df68ec00,400 df68e000,1000+df68d000,400 (df68e000, 1000)
 df68d000,400+df68d400,400 df68d000,800+df68d800,400 df68d000,c00+df68dc00,400 df68d000,1000+df68c000,400 (df68d000, 1000)
 df68c000,400+df68c400,400 df68c000,800+df68c800,400 df68c000,c00+df68cc00,400 df68c000,1000+df68b000,400 (df68c000, 1000)
 df68b000,400+df68b400,400 df68b000,800+df68b800,400 df68b000,c00+df68bc00,400 df68b000,1000+df689000,400 (df68b000, 1000)
 df689000,400+df689400,400 df689000,800+df689800,400 df689000,c00+df689c00,400 (0xdf689000,1000)
() DONE 16 mappings
() START 64 entries,  df69a000,400
() DONE (nents 48)
() START 64 entries
 df688000,400+df688400,400 df688000,800+df688800,400 df688000,c00+df688c00,400 df688000,1000+df687000,400 (df688000, 1000)
 df687000,400+df687400,400 df687000,800+df687800,400 df687000,c00+df687c00,400 df687000,1000+df686000,400 (df687000, 1000)
 df686000,400+df686400,400 df686000,800+df686800,400 df686000,c00+df686c00,400 df686000,1000+df685000,400 (df686000, 1000)
 df685000,400+df685400,400 df685000,800+df685800,400 df685000,c00+df685c00,400 df685000,1000+df684000,400 (df685000, 1000)
 df684000,400+df684400,400 df684000,800+df684800,400 df684000,c00+df684c00,400 df684000,1000+df683000,400 (df684000, 1000)
 df683000,400+df683400,400 df683000,800+df683800,400 df683000,c00+df683c00,400 df683000,1000+df682000,400 (df683000, 1000)
 df682000,400+df682400,400 df682000,800+df682800,400 df682000,c00+df682c00,400 df682000,1000+df681000,400 (df682000, 1000)
 df681000,400+df681400,400 df681000,800+df681800,400 df681000,c00+df681c00,400 df681000,1000+df680000,400 (df681000, 1000)
 df680000,400+df680400,400 df680000,800+df680800,400 df680000,c00+df680c00,400 df680000,1000+df67e000,400 (df680000, 1000)
 df67e000,400+df67e400,400 df67e000,800+df67e800,400 df67e000,c00+df67ec00,400 df67e000,1000+df67d000,400 (df67e000, 1000)
 df67d000,400+df67d400,400 df67d000,800+df67d800,400 df67d000,c00+df67dc00,400 df67d000,1000+df67c000,400 (df67d000, 1000)
 df67c000,400+df67c400,400 df67c000,800+df67c800,400 df67c000,c00+df67cc00,400 df67c000,1000+df67b000,400 (df67c000, 1000)
 df67b000,400+df67b400,400 df67b000,800+df67b800,400 df67b000,c00+df67bc00,400 df67b000,1000+df67a000,400 (df67b000, 1000)
 df67a000,400+df67a400,400 df67a000,800+df67a800,400 df67a000,c00+df67ac00,400 df67a000,1000+df679000,400 (df67a000, 1000)
 df679000,400+df679400,400 df679000,800+df679800,400 df679000,c00+df679c00,400 df679000,1000+df678000,400 (df679000, 1000)
 df678000,400+df678400,400 df678000,800+df678800,400 df678000,c00+df678c00,400 (0xdf678000,1000)
() DONE 16 mappings
() START 64 entries,  df688000,400
() DONE (nents 48)
() START 64 entries
 df675000,400+df675400,400 df675000,800+df675800,400 df675000,c00+df675c00,400 df675000,1000+df674000,400 (df675000, 1000)
 df674000,400+df674400,400 df674000,800+df674800,400 df674000,c00+df674c00,400 df674000,1000+df673000,400 (df674000, 1000)
 df673000,400+df673400,400 df673000,800+df673800,400 df673000,c00+df673c00,400 df673000,1000+df671000,400 (df673000, 1000)
 df671000,400+df671400,400 df671000,800+df671800,400 df671000,c00+df671c00,400 df671000,1000+df670000,400 (df671000, 1000)
 df670000,400+df670400,400 df670000,800+df670800,400 df670000,c00+df670c00,400 df670000,1000+df66f000,400 (df670000, 1000)
 df66f000,400+df66f400,400 df66f000,800+df66f800,400 df66f000,c00+df66fc00,400 df66f000,1000+df66e000,400 (df66f000, 1000)
 df66e000,400+df66e400,400 df66e000,800+df66e800,400 df66e000,c00+df66ec00,400 df66e000,1000+df66d000,400 (df66e000, 1000)
 df66d000,400+df66d400,400 df66d000,800+df66d800,400 df66d000,c00+df66dc00,400 df66d000,1000+df66c000,400 (df66d000, 1000)
 df66c000,400+df66c400,400 df66c000,800+df66c800,400 df66c000,c00+df66cc00,400 df66c000,1000+df66b000,400 (df66c000, 1000)
 df66b000,400+df66b400,400 df66b000,800+df66b800,400 df66b000,c00+df66bc00,400 df66b000,1000+df66a000,400 (df66b000, 1000)
 df66a000,400+df66a400,400 df66a000,800+df66a800,400 df66a000,c00+df66ac00,400 df66a000,1000+df669000,400 (df66a000, 1000)
 df669000,400+df669400,400 df669000,800+df669800,400 df669000,c00+df669c00,400 df669000,1000+df668000,400 (df669000, 1000)
 df668000,400+df668400,400 df668000,800+df668800,400 df668000,c00+df668c00,400 df668000,1000+df666000,400 (df668000, 1000)
 df666000,400+df666400,400 df666000,800+df666800,400 df666000,c00+df666c00,400 df666000,1000+df665000,400 (df666000, 1000)
 df665000,400+df665400,400 df665000,800+df665800,400 df665000,c00+df665c00,400 df665000,1000+df664000,400 (df665000, 1000)
 df664000,400+df664400,400 df664000,800+df664800,400 df664000,c00+df664c00,400 (0xdf664000,1000)
() DONE 16 mappings
() START 64 entries,  df675000,400
() DONE (nents 48)
() START 64 entries
 df663000,400+df663400,400 df663000,800+df663800,400 df663000,c00+df663c00,400 df663000,1000+df662000,400 (df663000, 1000)
 df662000,400+df662400,400 df662000,800+df662800,400 df662000,c00+df662c00,400 df662000,1000+df661000,400 (df662000, 1000)
 df661000,400+df661400,400 df661000,800+df661800,400 df661000,c00+df661c00,400 df661000,1000+df660000,400 (df661000, 1000)
 df660000,400+df660400,400 df660000,800+df660800,400 df660000,c00+df660c00,400 df660000,1000+df65f000,400 (df660000, 1000)
 df65f000,400+df65f400,400 df65f000,800+df65f800,400 df65f000,c00+df65fc00,400 df65f000,1000+df65e000,400 (df65f000, 1000)
 df65e000,400+df65e400,400 df65e000,800+df65e800,400 df65e000,c00+df65ec00,400 df65e000,1000+df65d000,400 (df65e000, 1000)
 df65d000,400+df65d400,400 df65d000,800+df65d800,400 df65d000,c00+df65dc00,400 df65d000,1000+df65b000,400 (df65d000, 1000)
 df65b000,400+df65b400,400 df65b000,800+df65b800,400 df65b000,c00+df65bc00,400 df65b000,1000+df65a000,400 (df65b000, 1000)
 df65a000,400+df65a400,400 df65a000,800+df65a800,400 df65a000,c00+df65ac00,400 df65a000,1000+df659000,400 (df65a000, 1000)
 df659000,400+df659400,400 df659000,800+df659800,400 df659000,c00+df659c00,400 df659000,1000+df658000,400 (df659000, 1000)
 df658000,400+df658400,400 df658000,800+df658800,400 df658000,c00+df658c00,400 df658000,1000+df657000,400 (df658000, 1000)
 df657000,400+df657400,400 df657000,800+df657800,400 df657000,c00+df657c00,400 df657000,1000+df656000,400 (df657000, 1000)
 df656000,400+df656400,400 df656000,800+df656800,400 df656000,c00+df656c00,400 df656000,1000+df655000,400 (df656000, 1000)
 df655000,400+df655400,400 df655000,800+df655800,400 df655000,c00+df655c00,400 df655000,1000+df654000,400 (df655000, 1000)
 df654000,400+df654400,400 df654000,800+df654800,400 df654000,c00+df654c00,400 df654000,1000+df653000,400 (df654000, 1000)
 df653000,400+df653400,400 df653000,800+df653800,400 df653000,c00+df653c00,400 (0xdf653000,1000)
() DONE 16 mappings
() START 64 entries,  df663000,400
() DONE (nents 48)
5+0 records in
5+0 records out
gggC3000:~# 


From - Thu Nov 08 21:13:51 2018
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From: Kailashnath V Rampure <kailasr@webcash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc problem
Date: Fri, 27 Oct 2000 13:37:49 -0700
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--=====================_94006934==_.ALT
Content-Type: text/plain; charset="us-ascii"; format=flowed

Hi Matt,

I could run as you told but had problems so i did what helge had (you need 
to go to /palo/ipl and do "hppa-linux-ranlib ipl.a". Then go back to /linux 
and do a "make palo" again.) then lif image was created.

But when I type bo lan at HP server Iget the following error
-------------------------
Booting...
Cannot find ENTRY_TEST.

Fail to initialize.

ENTRY_INT
Status=-7
----------------------------------
My config files are as follows:

I have /etc/bootptab file as follows:
-------------------------
linux:\
         hn:\
         sm=255.255.248.0:\
         vm=rfc1048:\
         ht=ether:\
         hd=/tftpboot:\
         bf=vmlinux:\
         ha=0010830339e0:\
         ip=192.168.1.237
--------------------------------

and my exports file reads as :
--------------------------------------------------
/tftpboot/linux linux(rw,no_root_squash)
-------------------------------------------------------

I had changed the NFSROOT line in Makefile in palo  to
NFSROOT = 192.168.1.236:/tftpboot/linux



At 06:47 PM 10/26/00 -0600, Matt Taggart wrote:

>Kailashnath V Rampure writes...
>
> > Thanks Matt,
> >
> > I have downloaded prebuilt cross-compiler but can you direct me to any
> > documentation how to use this cross compiler. I want to do a NFS boot. I
>
>Untar it in /, it will live in /opt/palinux.
>Add /opt/palinux/bin to your path
>Edit palo/Makefile and set it up for nfsroot, mine has the following line,
>
>NFSROOT = 15.1.51.72:/tftpboot/geordi
>
>That's the location of my nfsroot. Make sure you export it. My /etc/exports
>contains,
>
>/tftpboot/geordi                15.1.51.73(rw,no_root_squash)
>
>Then in the linux directory do,
>
>make oldconfig (maybe answer questions)
>make dep;make clean
>make palo
>
>Setup your bootp server to point to the lifimage generated. My /etc/bootptab
>contains,
>
>geordi:\
>         hn:\
>         sm=255.255.248.0:\
>         vm=rfc1048:\
>         ht=ether:\
>         hd=/tftpboot:\
>         bf=lif-geordi:\
>         ha=0800097891EB:\
>         ip=15.1.51.73
>
>and /tftpboot/lif-geordi is a symlink to palo/lifimage
>
>Hopefully that's enough information to get you going. If you have problems
>please let me know how far you get.
>
>Thanks,
>
>--
>Matt Taggart
>taggart@fc.hp.com

--=====================_94006934==_.ALT
Content-Type: text/html; charset="us-ascii"

<html>
Hi Matt,<br>
<br>
I could run as you told but had problems so i did what helge had (you
need to go to /palo/ipl and do &quot;hppa-linux-ranlib ipl.a&quot;. Then
go back to /linux and do a &quot;make palo&quot; again.) then lif image
was created. <br>
<br>
But when I type bo lan at HP server Iget the following error<br>
-------------------------<br>
Booting...<br>
Cannot find ENTRY_TEST.<br>
<br>
Fail to initialize.<br>
<br>
ENTRY_INT<br>
Status=-7<br>
----------------------------------<br>
My config files are as follows:<br>
<br>
I have /etc/bootptab file as follows:<br>
-------------------------<br>
linux:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hn:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sm=255.255.248.0:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; vm=rfc1048:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ht=ether:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hd=/tftpboot:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bf=vmlinux:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ha=0010830339e0:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ip=192.168.1.237<br>
--------------------------------<br>
<br>
and my exports file reads as :<br>
--------------------------------------------------<br>
/tftpboot/linux linux(rw,no_root_squash)<br>
-------------------------------------------------------<br>
<br>
I had changed the NFSROOT line in Makefile in palo&nbsp; to <br>
NFSROOT = 192.168.1.236:/tftpboot/linux<br>
<br>
<br>
<br>
At 06:47 PM 10/26/00 -0600, Matt Taggart wrote:<br>
<br>
<blockquote type=cite class=cite cite>Kailashnath V Rampure
writes...<br>
<br>
&gt; Thanks Matt,<br>
&gt; <br>
&gt; I have downloaded prebuilt cross-compiler but can you direct me to
any <br>
&gt; documentation how to use this cross compiler. I want to do a NFS
boot. I <br>
<br>
Untar it in /, it will live in /opt/palinux.<br>
Add /opt/palinux/bin to your path<br>
Edit palo/Makefile and set it up for nfsroot, mine has the following
line,<br>
<br>
NFSROOT = 15.1.51.72:/tftpboot/geordi<br>
<br>
That's the location of my nfsroot. Make sure you export it. My
/etc/exports <br>
contains,<br>
<br>
/tftpboot/geordi<x-tab>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</x-tab><x-tab>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</x-tab>15.1.51.73(rw,no_root_squash)<br>
<br>
Then in the linux directory do,<br>
<br>
make oldconfig (maybe answer questions)<br>
make dep;make clean<br>
make palo<br>
<br>
Setup your bootp server to point to the lifimage generated. My
/etc/bootptab <br>
contains,<br>
<br>
geordi:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hn:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sm=255.255.248.0:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; vm=rfc1048:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ht=ether:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hd=/tftpboot:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bf=lif-geordi:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ha=0800097891EB:\<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ip=15.1.51.73<br>
<br>
and /tftpboot/lif-geordi is a symlink to palo/lifimage<br>
<br>
Hopefully that's enough information to get you going. If you have
problems <br>
please let me know how far you get.<br>
<br>
Thanks,<br>
<br>
-- <br>
Matt Taggart<br>
taggart@fc.hp.com</blockquote></html>

--=====================_94006934==_.ALT--


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc problem
Date: Fri, 27 Oct 2000 14:27:59 -0700
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To: Kailashnath V Rampure <kailasr@webcash.com>
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Kailashnath V Rampure wrote:
...
> But when I type bo lan at HP server Iget the following error
> -------------------------
> Booting...
> Cannot find ENTRY_TEST.
> 
> Fail to initialize.
> 
> ENTRY_INT
> Status=-7

Config files look fine.
What does your HP server report for "search lan"?
(type that instead of "bo lan")

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:13:51 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Beta CD
Date: Fri, 27 Oct 2000 14:41:33 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:8247

Paul,
Is the intent here to collect experience for a "Beta II" CD?

If not, would you consider publishing a pre-beta ISO and include
early feedback on:
o which machines it's intended for and which it's known to work on
o known bugs (not fix them all...just list them)

"Paul J.Y. Lahaie" wrote:
> Hello everyone,
> 
> I am in the process of creating a new Beta CD for Linux on PA-RISC.
> Currently the CD will include the following:
...
> If there is anything you think should be on it, please send me some
> suggestions.  I can't promise they'll all make it, but I'll see what
> can be done.

TODO list from our status page?

> PS:  This will be an online ISO image release only.

That makes sense given how fast things are changing still.

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:13:51 2018
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From: Kailashnath V Rampure <kailasr@webcash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc problem
Date: Fri, 27 Oct 2000 14:29:53 -0700
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To: Grant Grundler <grundler@cup.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:8248

The path number is P0, device path is 8/0/20/0.0 and device type is LAN MODULE.

I also see on the Linux server that bootpd is being invoked for some time only.

At 02:27 PM 10/27/00 -0700, Grant Grundler wrote:
>Kailashnath V Rampure wrote:
>...
> > But when I type bo lan at HP server Iget the following error
> > -------------------------
> > Booting...
> > Cannot find ENTRY_TEST.
> >
> > Fail to initialize.
> >
> > ENTRY_INT
> > Status=-7
>
>Config files look fine.
>What does your HP server report for "search lan"?
>(type that instead of "bo lan")
>
>grant
>
>Grant Grundler
>Unix Systems Enablement Lab
>+1.408.447.7253


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Subject: Re: [parisc-linux] glibc problem
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Xref: news.gmane.org gmane.linux.ports.parisc:8249


Kailashnath V Rampure writes...

> But when I type bo lan at HP server Iget the following error

Do you have tftp installed and working? It usually runs via inetd. Here's what 
I have in /etc/inetd.conf on my Debian box,

tftp  dgram  udp  wait  nobody  /usr/sbin/tcpd  /usr/sbin/in.tftpd /boot 
/tftpboot

-- 
Matt Taggart
taggart@fc.hp.com



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From: Paul Bame <bame@noam.fc.hp.com>
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Subject: Re: [parisc-linux] glibc problem
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= linux:\
=          hn:\
=          sm=255.255.248.0:\
=          vm=rfc1048:\
=          ht=ether:\
=          hd=/tftpboot:\
=          bf=vmlinux:\
=          ha=0010830339e0:\
=          ip=192.168.1.237

bf should probably be lifimage, not vmlinux, though that's not the
current problem.

	-P


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From: "David S. Miller" <davem@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: scatterlist (de-)construction
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Also have a look at arch/sparc64/kernel/{iommu,pci_iommu}.c
for an algorithm which coalesces all possible cases.  It is
not pretty code but I fully verified it with a userland simulator so
it works.

Later,
David S. Miller
davem@redhat.com


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Set ENABLE_CLUSTERING in the scsi driver or use a 4K block
size in your ext2 partitions.

Later,
David S. Miller
davem@redhat.com


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc problem
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Xref: news.gmane.org gmane.linux.ports.parisc:8253


Kailashnath V Rampure writes...

> I also see on the Linux server that bootpd is being invoked for some time
> only.

bootpd runs from inetd and only stays up if it's receiving requests. After a 
specified amount of time of no requests it will exit. This isn't a problem as 
inetd will fire up a new one if needed.

I would make sure that tftpd is doing the right thing. You can test your tftpd 
setup by trying to download the lifimage yourself using the tftp client 
program.

bootpd and tftpd are pretty good about writing to syslog too, so check there 
for errors.

HTH,

-- 
Matt Taggart
taggart@fc.hp.com



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From: Alex deVries <adevries@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] CVS has moved!
Date: Sun, 18 Apr 1999 02:08:12 -0400 (EDT)
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For hopefully the last time, the parisc-linux CVS server has moved.  It is
now at:

:pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc
(for anonymous read only access)

:ext:user@puffin.external.hp.com:/home/cvs/parisc
(for registered contributors)

If you want to contribute to anything in the CVS, you have to register
with us.

HP's extremely helpful in getting this machine for us; we intend to use it
for CVS and FTP access.  I'll setup FTP properly tomorrow.  The througput
is a lot better than it has been at our old site.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



From - Thu Nov 08 21:13:52 2018
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From: Kailashnath V Rampure <kailasr@webcash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc problem
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Xref: news.gmane.org gmane.linux.ports.parisc:8255

The inetd.conf is as follows

tftp    dgram   udp     wait    root    /usr/sbin/tcpd  in.tftpd /tftpboot
bootps  dgram   udp     wait    root    /usr/sbin/tcpd  bootpd


At 03:41 PM 10/27/00 -0600, Matt Taggart wrote:

>Kailashnath V Rampure writes...
>
> > But when I type bo lan at HP server Iget the following error
>
>Do you have tftp installed and working? It usually runs via inetd. Here's 
>what
>I have in /etc/inetd.conf on my Debian box,
>
>tftp  dgram  udp  wait  nobody  /usr/sbin/tcpd  /usr/sbin/in.tftpd /boot
>/tftpboot
>
>--
>Matt Taggart
>taggart@fc.hp.com


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From: Kailashnath V Rampure <kailasr@webcash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc problem
Date: Fri, 27 Oct 2000 15:06:09 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:8256

I have redhat linux and the lin in my inetd.conf is as follows:

I missed few lines in the error. The complet error is as follows.
-------------------------
  Booting...
  Cannot find ENTRY_TEST.

  Fail to initialize.

  ENTRY_INT
  Status=-7

00000000 00000000 00000010 830339E0 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0000000B 00000000 000000FF 00000000  00000000  00000000  00000000  00000000
00000000 00000000 00400720 00000000 00000000 00000000 00000000 00000000

Failed to initialize
-------------------------------------------

The details of the server is as follows
The machine type is HP ACLASS (A180C)
The hardware path of the lan card is 8/0/20/0.




At 02:38 PM 10/27/00 -0700, Grant Grundler wrote:
>Kailashnath - can you also include machine type and
>HW path of the "lan" device?
>
>thanks,
>grant
>
>
>Kailashnath V Rampure wrote:
>...
> > But when I type bo lan at HP server Iget the following error
> > -------------------------
> > Booting...
> > Cannot find ENTRY_TEST.
> >
> > Fail to initialize.
> >
> > ENTRY_INT
> > Status=-7
>
>Config files look fine.
>What does your HP server report for "search lan"?
>(type that instead of "bo lan")
>
>grant
>
>Grant Grundler
>Unix Systems Enablement Lab
>+1.408.447.7253
>
>---------------------------------------------------------------------------
>To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.


From - Thu Nov 08 21:13:52 2018
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From: Kailashnath V Rampure <kailasr@webcash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc problem
Date: Fri, 27 Oct 2000 18:22:26 -0700
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Thanks !!!!! a lot specially to MATT and Helge Deller
I was able to Bring up the linux on A class server.

Now I have formatted the hdd and mounted disk to /mnt and then transfered 
the root to /dev/hda2.
I want to know how  do I transfer palo to this new hdd.

Regards
Kailas

At 03:51 PM 10/27/00 -0600, Matt Taggart wrote:

>Kailashnath V Rampure writes...
>
> > I also see on the Linux server that bootpd is being invoked for some time
> > only.
>
>bootpd runs from inetd and only stays up if it's receiving requests. After a
>specified amount of time of no requests it will exit. This isn't a problem as
>inetd will fire up a new one if needed.
>
>I would make sure that tftpd is doing the right thing. You can test your 
>tftpd
>setup by trying to download the lifimage yourself using the tftp client
>program.
>
>bootpd and tftpd are pretty good about writing to syslog too, so check there
>for errors.
>
>HTH,
>
>--
>Matt Taggart
>taggart@fc.hp.com
>
>
>---------------------------------------------------------------------------
>To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.


From - Thu Nov 08 21:13:52 2018
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] __FUNCTION__ broken
Date: Sat, 28 Oct 2000 13:55:13 +1100 (EST)
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Cc: Grant Grundler <grundler@cup.hp.com>, gcc-patches@gcc.gnu.org,
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To: Mark Mitchell <mark@codesourcery.com>
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Hi Mark,
  Your 2000-09-16 change doesn't clear c_function_name_declared_p
anywhere, resulting in empty strings for __FUNCTION__ and the like.

eg. testcase
cat > funcname.c <<EOF
extern int printf (__const char *__restrict __format, ...);

int foo (int x)
{
  return x+1;
}

int main (void)
{
  printf ("%s\n", __FUNCTION__);
  return 0;
}
EOF


The following little patch seems to fix the problem, but please check
whether other cleaning up is required.

--- gcc/c-decl.c~	Thu Oct 26 16:20:36 2000
+++ gcc/c-decl.c	Sat Oct 28 12:10:56 2000
@@ -6733,6 +6733,7 @@ finish_function (nested)
 	 function.  For a nested function, this value is used in
 	 pop_c_function_context and then reset via pop_function_context.  */
       current_function_decl = NULL;
+      c_function_name_declared_p = 0;
     }
 }
 

Regards, Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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From: Richard Henderson <rth@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: __FUNCTION__ broken
Date: Sat, 28 Oct 2000 23:00:17 -0700
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On Sat, Oct 28, 2000 at 01:55:13PM +1100, Alan Modra wrote:
>        current_function_decl = NULL;
> +      c_function_name_declared_p = 0;

Applied, thanks.



r~


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Newsgroups: gmane.linux.ports.parisc
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FYI

It seems two of Amodra's messages from Oct 26th where "lost"
to our archives. I've resent them just now.

The problem was the /home/ file system on puffin.external.hp.com was
full and those two messages happened to be casualties of that mess.
Doesn't look like anything else was "damaged" by the /home dir getting
filled up. (But I don't have root access to look more closely either...)

sorry,
grant


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Hi all,

i have some problems while installing Linux/hppa on my
hp9000/730. since i don't have any hp manuals i ask
here (i didn't find any information on hp.com or elsewhere)

I installed the latest nfsroot on my linux/x86, also
the latest cross-compiler package, got the latest palo
and tried to install palo on a ibm0664 scsi hd (2gb,
1. partition 10mb /boot, 2.partition 128mb swap, rest /).

I found some documents in the internet which said that
this harddisk is compatible with hpux and/or hp9000/7xx.

well, i adopted some files of the nfsroot and installed
the contents of the nfsroot also on the harddisk (the
only one on the hp, scsi id 6).

unfortunately i can't boot the harddisk (i also tried
some other harddisks, so i think it is some problem
which is not related to the hardware, because i have/had
a hd with preinstalled hpux10.10 which doesn't make any
troubles ...).

The boot sequence stops with

ENTRY_INIT status=-13

i don't have any clue what this means ...

the internal scsi-floppy (id 0) give the following
error:

ENTRY_INIT status=-4 (since i don't have a bootable disk)

all the other (n/a) ids produce a

ENTRY_INIT status=-7 (i think this means "no hardware connected")


i also connected a zip drive (id 3), a cdrom (id 4) and a cdwriter (id 5)
drive, they report

can't boot IPL!

but the initialition of these scsi devices is okay (produces no errors)

so i'm a little bit confused, because the zip/cdrom/cdwriter
can be initialized, but not the harddisk.
i expected that the hd would be initialized correctly, but^it would
also give a "can't boot IPL!" error or no error at all ....


so can someone give me a hint what ENTRY_INIT status = -13 means ?
what did i do wrong ?

thanks in advance,
max
.



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From: Alan Modra <alan@linuxcare.com.au>
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        Jeffrey A Law <law@cygnus.com>
To: gcc-bugs@gcc.gnu.org
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Xref: news.gmane.org gmane.linux.ports.parisc:8262

On Fri, 27 Oct 2000, Alan Modra wrote:

> char *f3 (char *a, char *b)
> {
>   char *c = 0;
> 
>   if (f1 (&b) != 0)
>     goto out;
> 
>   /* hppa64 passes bogus value for b */
>   f2 (b, &c);
> 
> out:
>   return c;
> }

I think I know what's going on here.  The root of the problem is that
pa-64.h defines an ARG_POINTER_REGNUM that isn't a fixed reg, and isn't
eliminable.  The arg_pointer isn't even a call-saved reg.  That breaks a
number of places in the compiler.

So I went down the path of trying to fix things properly by defining
ELIMINABLE_REGS and so on, but I ended in a maze of twisty little passages
labelled "Unrecognizable instruction", like this one:

/src/parisc/gcc/gcc/libgcc2.c: In function `__moddi3':
/src/parisc/gcc/gcc/libgcc2.c:601: Unrecognizable insn:
(insn 1289 209 1298 (set (reg:SI 50 %fr22)
        (subreg:SI (plus:DI (reg:DI 30 %r30)
                (const_int -272 [0xfffffef0])) 0)) -1 (nil)
    (nil))
/src/parisc/gcc/gcc/libgcc2.c:601: Internal compiler error in
extract_insn, at recog.c:2134

Anyway, this hack seems to fix it for me.

	* rtl.h (ARG_POINTER_INVARIANT): Define as 1 if undef.
	* rtlanal.c (rtx_unstable_p): Qualify arg_pointer_rtx match with
	ARG_POINTER_INVARIANT.
	(rtx_varies_p): Likewise.
	(rtx_addr_can_trap_p): Likewise.
	* local-alloc.c (function_invariant_p): Likewise.
	* loop.c (loop_invariant_p): Likewise.
	* tm.texi (ARG_POINTER_INVARIANT): Describe.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.

Index: gcc/local-alloc.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/local-alloc.c,v
retrieving revision 1.72
diff -u -p -r1.72 local-alloc.c
--- gcc/local-alloc.c	2000/10/23 18:42:52	1.72
+++ gcc/local-alloc.c	2000/10/30 03:57:35
@@ -780,10 +780,12 @@ function_invariant_p (x)
 {
   if (CONSTANT_P (x))
     return 1;
-  if (x == frame_pointer_rtx || x == arg_pointer_rtx)
+  if (x == frame_pointer_rtx
+      || (ARG_POINTER_INVARIANT && x == arg_pointer_rtx))
     return 1;
   if (GET_CODE (x) == PLUS
-      && (XEXP (x, 0) == frame_pointer_rtx || XEXP (x, 0) == arg_pointer_rtx)
+      && (XEXP (x, 0) == frame_pointer_rtx
+	  || (ARG_POINTER_INVARIANT && XEXP (x, 0) == arg_pointer_rtx))
       && CONSTANT_P (XEXP (x, 1)))
     return 1;
   return 0;
Index: gcc/loop.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/loop.c,v
retrieving revision 1.293
diff -u -p -r1.293 loop.c
--- gcc/loop.c	2000/10/21 12:12:07	1.293
+++ gcc/loop.c	2000/10/30 03:58:24
@@ -3038,7 +3038,7 @@ loop_invariant_p (loop, x)
 	 since the reg might be set by initialization within the loop.  */
 
       if ((x == frame_pointer_rtx || x == hard_frame_pointer_rtx
-	   || x == arg_pointer_rtx)
+	   || (ARG_POINTER_INVARIANT && x == arg_pointer_rtx))
 	  && ! current_function_has_nonlocal_goto)
 	return 1;
 
Index: gcc/rtl.h
===================================================================
RCS file: /cvs/gcc/egcs/gcc/rtl.h,v
retrieving revision 1.228
diff -u -p -r1.228 rtl.h
--- gcc/rtl.h	2000/10/16 16:24:54	1.228
+++ gcc/rtl.h	2000/10/30 04:03:31
@@ -1504,6 +1504,10 @@ extern rtx global_rtl[GR_MAX];
 #define hard_frame_pointer_rtx	(global_rtl[GR_HARD_FRAME_POINTER])
 #define arg_pointer_rtx		(global_rtl[GR_ARG_POINTER])
 
+#ifndef ARG_POINTER_INVARIANT
+#define ARG_POINTER_INVARIANT 1
+#endif
+
 extern rtx pic_offset_table_rtx;
 extern rtx struct_value_rtx;
 extern rtx struct_value_incoming_rtx;
Index: gcc/rtlanal.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/rtlanal.c,v
retrieving revision 1.74
diff -u -p -r1.74 rtlanal.c
--- gcc/rtlanal.c	2000/10/24 23:01:11	1.74
+++ gcc/rtlanal.c	2000/10/30 04:03:51
@@ -71,7 +71,8 @@ rtx_unstable_p (x)
     case REG:
       /* As in rtx_varies_p, we have to use the actual rtx, not reg number.  */
       if (x == frame_pointer_rtx || x == hard_frame_pointer_rtx
-	  || x == arg_pointer_rtx || RTX_UNCHANGING_P (x))
+	  || (ARG_POINTER_INVARIANT && x == arg_pointer_rtx)
+	  || RTX_UNCHANGING_P (x))
 	return 0;
 #ifndef PIC_OFFSET_TABLE_REG_CALL_CLOBBERED
       /* ??? When call-clobbered, the value is stable modulo the restore
@@ -144,7 +145,7 @@ rtx_varies_p (x)
 	 eliminated the frame and/or arg pointer and are using it
 	 for pseudos.  */
       if (x == frame_pointer_rtx || x == hard_frame_pointer_rtx
-	  || x == arg_pointer_rtx)
+	  || (ARG_POINTER_INVARIANT && x == arg_pointer_rtx))
 	return 0;
 #ifndef PIC_OFFSET_TABLE_REG_CALL_CLOBBERED
       /* ??? When call-clobbered, the value is stable modulo the restore
@@ -209,7 +210,8 @@ rtx_addr_can_trap_p (x)
     case REG:
       /* As in rtx_varies_p, we have to use the actual rtx, not reg number.  */
       return ! (x == frame_pointer_rtx || x == hard_frame_pointer_rtx
-		|| x == stack_pointer_rtx || x == arg_pointer_rtx);
+		|| (ARG_POINTER_INVARIANT && x == arg_pointer_rtx)
+		|| x == stack_pointer_rtx);
 
     case CONST:
       return rtx_addr_can_trap_p (XEXP (x, 0));
Index: gcc/tm.texi
===================================================================
RCS file: /cvs/gcc/egcs/gcc/tm.texi,v
retrieving revision 1.149
diff -u -p -r1.149 tm.texi
--- gcc/tm.texi	2000/10/18 17:51:54	1.149
+++ gcc/tm.texi	2000/10/30 04:06:49
@@ -2564,7 +2564,12 @@ register this is.  On other machines, yo
 wish for this purpose.  If this is not the same register as the frame
 pointer register, then you must mark it as a fixed register according to
 @code{FIXED_REGISTERS}, or arrange to be able to eliminate it
-(@pxref{Elimination}).
+(@pxref{Elimination}), or clear ARG_POINTER_INVARIANT
+
+@findex ARG_POINTER_INVARIANT
+@item ARG_POINTER_INVARIANT
+ARG_POINTER_INVARIANT allows the compiler to assume that
+ARG_POINTER_REGNUM is unchanging over the life of a function.
 
 @findex RETURN_ADDRESS_POINTER_REGNUM
 @item RETURN_ADDRESS_POINTER_REGNUM
Index: gcc/config/pa/pa-64.h
===================================================================
RCS file: /cvs/gcc/egcs/gcc/config/pa/pa-64.h,v
retrieving revision 1.3
diff -u -p -r1.3 pa-64.h
--- gcc/config/pa/pa-64.h	2000/09/25 13:39:45	1.3
+++ gcc/config/pa/pa-64.h	2000/10/30 04:30:51
@@ -129,6 +129,7 @@ do {  \
 #undef ARGS_GROW_DOWNWARD
 #undef ARG_POINTER_REGNUM
 #define ARG_POINTER_REGNUM 29
+#define ARG_POINTER_INVARIANT 0
 #undef STATIC_CHAIN_REGNUM
 #define STATIC_CHAIN_REGNUM 31
 


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Installation problems
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Xref: news.gmane.org gmane.linux.ports.parisc:8263

xam@sgate.charlysworld.de wrote:
 
> and tried to install palo on a ibm0664 scsi hd (2gb,
> 1. partition 10mb /boot, 2.partition 128mb swap, rest /).
...
> I found some documents in the internet which said that
> this harddisk is compatible with hpux and/or hp9000/7xx.

[ Digression: HPUX is pretty tolerant/robust on dealing with SCSI disks.
HP doesn't want to deal with issues which arise from disk firmware bugs.
So while the bare mechanism might be supported, you need to have
HP qualified firmware to complain to HP about problems...]


> unfortunately i can't boot the harddisk (i also tried
> some other harddisks, so i think it is some problem
> which is not related to the hardware, because i have/had
> a hd with preinstalled hpux10.10 which doesn't make any
> troubles ...).
> 
> The boot sequence stops with
> 
> ENTRY_INIT status=-13
> 
> i don't have any clue what this means ...

I don't either but I would guess the disk isn't spinning up because
the PDC/IODC didn't tell it to. Check for option jumpers on the disk
to (en-) disable two features:
o auto-start
o delayed start

Your SCSI disk might be configured to *NOT* spinup (ie auto-start
disabled) until it gets a "start unit" SCSI command from the host
(aka "initiator").

"delay start" usually implies auto-start is enabled but the mech
won't spinup until prescribed amount of time has passed.
Often the delay is something like "3+ID*6" seconds.

...
> so can someone give me a hint what ENTRY_INIT status = -13 means ?
> what did i do wrong ?

This might be documented in "iodc.pdf" or "pdc32.pdf" found on:
	http://www.thepuffingroup.com/parisc/documentation.html

Search for ENTRY_INIT.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] hppa64-linux gcc bug
Date: Mon, 30 Oct 2000 19:50:47 +1100 (EST)
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Xref: news.gmane.org gmane.linux.ports.parisc:8264

I've checked in a fix for the arg_pointer problem on pa64 that should fix
the problem you found with create_proc_entry (and probably elsewhere in
the kernel too).  It's not the ideal fix, as I ran into other problems
trying to eliminate the arg_pointer completely, and it's taken up a large
lump of my time already.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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Subject: [parisc-linux] kernel updates.
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So, I spent some time this rainy Saturday on the kernel, and brought the
kernel a little closer to building.  There's now about 8 to 12 undefined
symbols still to fix, but make dep and make vmlinux now do two different
things.

There's a lot of stuff still to do in this, please, take the kernel tree
and try compiling it.  More importantly, help me fix it.

And ld.  We need ld help.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: testcase for hppa64 gcc bug
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To: alan@linuxcare.com.au (Alan Modra)
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In-Reply-To: <Pine.LNX.4.21.0010301335000.25085-100000@front.linuxcare.com.au> from "Alan Modra" at Oct 30, 2000 06:04:44 pm
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Xref: news.gmane.org gmane.linux.ports.parisc:8266

> I think I know what's going on here.  The root of the problem is that
> pa-64.h defines an ARG_POINTER_REGNUM that isn't a fixed reg, and isn't
> eliminable.  The arg_pointer isn't even a call-saved reg.  That breaks a
> number of places in the compiler.
> 
> So I went down the path of trying to fix things properly by defining
> ELIMINABLE_REGS and so on, but I ended in a maze of twisty little passages
> labelled "Unrecognizable instruction", like this one:
> 
> /src/parisc/gcc/gcc/libgcc2.c: In function `__moddi3':
> /src/parisc/gcc/gcc/libgcc2.c:601: Unrecognizable insn:
> (insn 1289 209 1298 (set (reg:SI 50 %fr22)
>         (subreg:SI (plus:DI (reg:DI 30 %r30)
>                 (const_int -272 [0xfffffef0])) 0)) -1 (nil)
>     (nil))
> /src/parisc/gcc/gcc/libgcc2.c:601: Internal compiler error in
> extract_insn, at recog.c:2134
> 
> Anyway, this hack seems to fix it for me.
> 
> 	* rtl.h (ARG_POINTER_INVARIANT): Define as 1 if undef.
> 	* rtlanal.c (rtx_unstable_p): Qualify arg_pointer_rtx match with
> 	ARG_POINTER_INVARIANT.
> 	(rtx_varies_p): Likewise.
> 	(rtx_addr_can_trap_p): Likewise.
> 	* local-alloc.c (function_invariant_p): Likewise.
> 	* loop.c (loop_invariant_p): Likewise.
> 	* tm.texi (ARG_POINTER_INVARIANT): Describe.

I don't think this is the correct fix.  Isn't r29 used for 128 bit
return values?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Kailashnath V Rampure <kailasr@webcash.com>
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Subject: [parisc-linux] unable to run palo on nfs root
Date: Mon, 30 Oct 2000 13:51:00 -0800
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Xref: news.gmane.org gmane.linux.ports.parisc:8267

Hi,

I have booted HP A class server from nfsroot. but when I try to run palo on 
the server to initialize boot loader to the hdd I get
"cannot execute the binary file"

can any one help me to make the hdd bootable

Regards
Kailas


From - Thu Nov 08 21:13:53 2018
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: testcase for hppa64 gcc bug
Date: Tue, 31 Oct 2000 09:16:43 +1100 (EST)
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Cc: gcc-bugs@gcc.gnu.org, gcc-patches@gcc.gnu.org,
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:8268

On Mon, 30 Oct 2000, John David Anglin wrote:

> > 	* rtl.h (ARG_POINTER_INVARIANT): Define as 1 if undef.
> > 	* rtlanal.c (rtx_unstable_p): Qualify arg_pointer_rtx match with
> > 	ARG_POINTER_INVARIANT.
> > 	(rtx_varies_p): Likewise.
> > 	(rtx_addr_can_trap_p): Likewise.
> > 	* local-alloc.c (function_invariant_p): Likewise.
> > 	* loop.c (loop_invariant_p): Likewise.
> > 	* tm.texi (ARG_POINTER_INVARIANT): Describe.
> 
> I don't think this is the correct fix.  Isn't r29 used for 128 bit
> return values?

Yes, r29 is used for 128 bit return values, but how is that relevant to
use of r29 as the arg pointer?

I tried setting up ELIMINATE_REGS and so forth (see puffin CVS
gcc/config/pa/pa-linux64.h) but that failed badly with what looked like,
from a very cursory inspection, a use of r29 as a temporary reg being
"eliminated" to r30+const.  Oops.

Anyway, nothing in the above patch should make the situation worse.  All
it really does is let the compiler see places where arg_pointer changes,
instead of blindly assuming that arg_pointer will not change.  Take a peek
at the .lreg rtl for the test case I posted.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Phillip Beal <pdbeal@bealz.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Boot Problems with 755
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Xref: news.gmane.org gmane.linux.ports.parisc:8269

Hey,

I've been reading and building the PARISC port for a couple of months
now, and I've hit a problem.  I have a 755 that I can work with that I
have been able to get to boot.  However, once the system boots the
latest kernel stuff, it fails on loading the nfsroot system.  The
machine never was able to successfully boot a kernel untill today, but
the system dies before it tries to load the nfsroot disk.  Here's my
problem:

The system boots fine from a SuSE 7.0 Professional System running
tftp, bootp, nfs, and rboot (rboot is what is actually booting from
since the system is too old to be able to bootp from, or at least that's
what Ive found from reading and from talking to some people.)  However,
the Kernel reports all the devices in the system (all 16), but returns
this error:

IP-Config: No network devices available

I know this was a problem on some people with a different system, but
the same fix doesn't work with the 755 since it has no PCI bus.  The
kernel returns this for the LAN adapter, but I don't know what to
compile to enable this device:

Coral II Core LAN (802.3) (10) at 0xf0826000, versions 0xa, 0x0, 0x72,
0x0, 0x0

What do I need to do to be able to use this LAN adapter, if its even
supported right now.  Alternatively, can the HP 755 machine boot through
the serial connection or something other than the LAN adapter?

Thanks,
--
Phillip Beal
S+LUG Vice-President - http://www.slug.louisville.edu/
 


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot Problems with 755
Date: Mon, 30 Oct 2000 23:07:28 +0000
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To: Phillip Beal <pdbeal@bealz.net>
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On Mon, Oct 30, 2000 at 05:40:31PM -0500, Phillip Beal wrote:
> IP-Config: No network devices available
> 
> I know this was a problem on some people with a different system, but
> the same fix doesn't work with the 755 since it has no PCI bus.  The
> kernel returns this for the LAN adapter, but I don't know what to
> compile to enable this device:
> 
> Coral II Core LAN (802.3) (10) at 0xf0826000, versions 0xa, 0x0, 0x72,
> 0x0, 0x0
> 
> What do I need to do to be able to use this LAN adapter, if its even
> supported right now.  Alternatively, can the HP 755 machine boot through
> the serial connection or something other than the LAN adapter?

This isn't tagged correctly in the hwdb.  Could someone inside linuxcare
please fix this?  It should be supported by the Apricot driver.

-- 
Revolutions do not require corporate support.


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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Elf Header change proposal
Date: Tue, 31 Oct 2000 03:32:20 -0700 (MST)
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Xref: news.gmane.org gmane.linux.ports.parisc:8271

In looking at how to support 32 bit parisc linux binaries on the 64 bit
kernel, I realized that we need to eventually have a way to differentiate
between three different elf executable types: 32 bit parisc linux, 64 bit
parisc linux and 64 bit parisc HP-UX.  Right now we are only concerned
with 32 bit parisc linux, but we eventually plan to support the other
types, and I think it makes sense to put the infrastructure in place now
for two reasons:

    1) It can affect object code compatibility, so lets make the changes
    now while the pain level is low.

    2) It makes it easier to do the right thing in terms of coding now,
    even if the primary goal is 32 bit parisc linux binaries on 64 bit
    parisc linux kernel, we can code with the other possibilities in mind.

This article is kind of long.  It explains in detail the changes I would
like to see made, and why.  Here is the short version.  If you don't
disagree, you don't have to read the rest (unless it really interests
you).

    1) The ONLY change I would like to see made for 32 bit parisc linux
    binaries is to set the e_ident[EI_OSABI] field to 3 (currently set to
    0).  This is the value defined in the IA64 ABI for Linux, and I think
    we should leverage it.  HP-UX puts a 1 in this field (ELFOSABI_HPUX).

    2) 64 bit parisc binaries (currently just vmlinux) are currently using
    the Elf32_hdr type.  They should be changed to use the Elf64_hdr type.

    3) As in #1 above, the e_ident[EI_OSABI] field should be set to 3 for
    64 bit parisc linux binaries.

    4) The e_flags field should be changed to 0x80214 (EF_PARISC_WIDE|
    EFA_PARISC_2_0) for 64 bit parisc linux binaries.  Currently it is set
    to 0x20b which indicates a parisc 1.0 binary (which is really strange,
    since the 32 bit binaries have 0x210 which correctly identifies a
    parisc 1.1 binary).

John Marvin
jsm@fc.hp.com

The detailed explanation and rationale follows:

I looked at how some other architectures differentiated binaries, and some
of them are using different machine types.  But after talking to Cary
Coutant, and looking at how IA64 binaries are differentiated between Linux
and HP-UX, I believe the right answer is to use the same machine type
(EM_PARISC = 15), and differentiate based on other architected fields in
the elf headers.  This means that some fields need to change in our
currrent parisc linux elf headers.  The following paragraphs discuss each
change.

The ELF standard supports two different header types:  Elf32_hdr and
Elf64_hdr.  The Elf64_hdr expands some of the fields that are in the
Elf32_hdr to 64 bits wide.  The first few fields are common, and the
e_ident[EI_CLASS] field can be used to determine which header is being
used.  Note, the header type does not have to correlate to the type of
binary contained (i.e. 32/64 bit).  If a 64 bit binary doesn't have any
file offsets or virtual offsets that overflow a 32 bit field, the
executable could use the Elf32_hdr.  For IA64 relocatable files, this is
allowed by the ABI.  However, for an executable file, the IA64 ABI
requires that the header type correspond, i.e.  Elf32_hdr is used for 32
bit binaries, and Elf64_hdr is used for 64 bit binaries.  HP-UX also
enforces this for parisc (there is no 32 bit elf for HP-UX, but 64 bit
binaries must use the Elf64_hdr type).  This makes sense.

In order to support multiple types on Linux, the other architectures
(mips/ia64/sparc) have a .c file that defines a set of macros, constants,
etc. for a certain elf format, and then it includes binfmt_elf.c.  Note
that the code in binfmt_elf.c doesn't check the class field, so you must
define which header type you want statically.  This means that for a
certain elf type, using the above method (and unless we have a real good
reason to do something different, I would prefer to do what the other
ports do) you cannot support for Elf32_hdr's and Elf64_hdr's.  When I talk
about a "certain elf type" I am referring to 32 bit parisc linux vs. 64
bit parisc linux vs. 64 bit parisc HP-UX.  So we can support Elf32_hdr's
for 32 bit parisc linux, and Elf64_hdr's for 64 bit parisc linux.  We
cannot support both Elf32_hdr's and Elf64_hdr's for one type, e.g. 64 bit
parisc linux.  So if we ever want to support a 64 bit parisc executable
that requires at least one 64 bit field we should make that header type
mandatory now.  And since we want to use the same tools to compile the
kernel as we use to create user programs, that means that the tools should
change now to use Elf64_hdr's for vmlinux (so that if things like palo,
etc. need to change we can fix them now, rather than break things in the
future when the transition will be more difficult).

Although we could probably figure out the difference between an HP-UX 64
bit elf binary and a parisc linux 64 bit elf binary via various other
fields (like text start, etc.) that would be fragile and ugly.  I would
prefer to have a clearly defined field, and the ELF standard provides such
a field, so let's use it.  That field is the e_ident[EI_OSABI] field.  So,
what should we put in it?  This field is machine dependent, so we could
decide just about anything.  However, IA64 Linux and HP-UX binaries have
already set a precedent, and barring a good reason to do otherwise, I
think we should follow it.  The Intel IA64 ABI defines a whole variety of
values for that field.  The three that concern us are:

	#define ELFOSABI_HPUX           1
	#define ELFOSABI_LINUX          3
	#define ELFOSABI_OPENBSD       12

Note that HP-UX is also using ELFOSABI_HPUX already for elf 64 bit HP-UX
parisc binaries.  So I propose we put a 3 in this field for both 32 bit
and 64 bit elf binaries.  For 32 bit it is not necessarily important,
since HP-UX doesn't support elf for 32 bit parisc binaries.  However, it
couldn't hurt to set it the same, and I did think of one possible reason
to do it.  I am not familiar with the OpenBSD port to parisc, but perhaps
they are using elf for 32 bit (my guess is that they are probably using
SOM, but I really have no idea).  If they are, perhaps some day they may
want to run parisc linux binaries, or perhaps we may want to run parisc
OpenBSD binaries, and we could use this field to differentiate them.  Of
course, this would mean that OpenBSD would need to put a different value
in this field.  If anyone from the parisc OpenBSD port is reading this,
and this makes any sense, you may want to consider putting a 12 in this
field (same as OpenBSD for IA64).

The e_flags field is machine dependent.  Currently we are already partly
following the precedent set by HP-UX by using this field to indicate the
parisc architecture level (1.0,1.1 or 2.0).  Right now we are setting this
field to 0x210 for 32 bit binaries, which indicates a 1.1 binary, which
seems correct to me.  However, for 64 bit binaries we are currently
setting this field to 0x20b, which indicates a 1.0 binary.  This is
clearly wrong, since the code within contains many parisc 2.0 specific
instructions.  The value of 0x214 should be used to indicate a parisc 2.0
binary.  Also, since the Elf header type (Elf32_hdr or Elf64_hdr) doesn't
have to correspond to whether or not the binary is a 64 bit or 32 bit
binary, HP-UX was a bit (EF_PARISC_WIDE = 0x80000) to indicate whether or
not the binary is a 64 bit binary.  We should set this bit also to be
consistant.  However, since I am also proposing that we do require the
header type to correspond, I plan to differentiate the width based on the
header type (otherwise you have to decode the EI_CLASS field before you
can find the e_flags field, which is a pain).  Note again that HP-UX also
requires 64 bit binaries to use Elf64_hdr.

Below is a table containing the current values for various executables (I
got all of the values by dumping the headers of each executable, with the
exception of IA64 Linux, which I got the values from the Intel IA64 ABI,
and which Cary Coutant confirmed are what IA64 Linux is using).

Below the table are the proposed new values for 32 and 64 bit parisc
Linux executables. below that are more details regarding each field,
including defines extracted from Linux's /usr/include/elf.h, the
Intel IA64 ABI and HP-UX's /usr/include/elf_parisc.h.

			ELF Header Fields

			      (Decimal)                              (Hex)
Current             ELF   Data    ELF   ABI    ABI    ELF     ELF     ELF
Description        Class Format Version type Version  Type  Machine  Flags
---------------------------------------------------------------------------
32 bit parisc linux  1     2      1     0      0      2      15    00000210
64 bit parisc linux  1     2      1     0      0      2      15    0000020b
64 bit parisc HP-UX  2     2      1     1      0      2      15    00080214
64 bit IA64   HP-UX  2     1      1     1      1      2      50    00000018
64 bit IA64   linux  2     1      1     3      ?      2      50           ?

Proposed:

32 bit parisc linux  1     2      1     3      0      2      15    00000210
64 bit parisc linux  2     2      1     3      0      2      15    00080214

Notes:
    ELF Class: value in e_ident[EI_CLASS] field of Elf{32,64}_hdr

	This field tells you whether or not the header is a Elf32_hdr or
	Elf64_hdr.

	#define EI_CLASS        4               /* File class byte index */
	#define ELFCLASSNONE    0               /* Invalid class */
	#define ELFCLASS32      1               /* 32-bit objects */
	#define ELFCLASS64      2               /* 64-bit objects */
	#define ELFCLASSNUM     3

    Data Format: value in e_ident[EI_DATA] field of Elf{32,64}_hdr

	This field tells you whether the data in the headers is little
	endian or big endian.

	#define EI_DATA         5               /* Data encoding byte index */
	#define ELFDATANONE     0               /* Invalid data encoding */
	#define ELFDATA2LSB     1               /* 2's complement, little endian */
	#define ELFDATA2MSB     2               /* 2's complement, big endian */
	#define ELFDATANUM      3

    Elf Version: value in e_ident[EI_VERSION] field of Elf{32,64}_hdr

	Elf version #. Right now, everyone puts a 1 in here.

	#define EI_VERSION      6               /* File version byte index */

    ABI Type: value in e_ident[EI_OSABI] field of Elf{32,64}_hdr

	This field in machine type dependent. However, some types are
	standard across machines. The following defines come from the
	Gnu/Linux elf.h. The Intel IA-64 ABI also defines ELFOSABI_LINUX
	which is defined to be 3 (The Intel IA-64 ABI also defines a
	bunch of others, which don't concern us, with the possible
	exception of ELFOSABI_OPENBSD which is defined to be 12). I think
	we should use ELFOSABI_LINUX (3) for parisc also.

	#define EI_OSABI        7               /* OS ABI identification */
	#define ELFOSABI_SYSV           0       /* UNIX System V ABI */
	#define ELFOSABI_HPUX           1       /* HP-UX */
	#define ELFOSABI_ARM            97      /* ARM */
	#define ELFOSABI_STANDALONE     255     /* Standalone (embedded) application */

    ABI Version: value in e_ident[EI_ABIVERSION] field of Elf{32,64}_hdr

	Version number for the ABI (see above). Might as well stick with
	0 for now.

	#define EI_ABIVERSION   8               /* ABI version */

    Elf Type: value in e_type field of Elf{32,64}_hdr

	/* Legal values for e_type (object file type).  */

	#define ET_NONE         0               /* No file type */
	#define ET_REL          1               /* Relocatable file */
	#define ET_EXEC         2               /* Executable file */
	#define ET_DYN          3               /* Shared object file */
	#define ET_CORE         4               /* Core file */
	#define ET_NUM          5               /* Number of defined types */
	#define ET_LOPROC       0xff00          /* Processor-specific */
	#define ET_HIPROC       0xffff          /* Processor-specific */


    Elf Machine: value in e_machine field of Elf{32,64}_hdr

	Denotes the processor/machine type. Sparc seems to do the wrong
	thing here by having lots of them. I think we should stick to
	one value, and differentiate using the other fields, as is done
	for IA64.

	Excerpted from elf.h:

	#define EM_PARISC       15              /* HPPA */
	#define EM_IA_64        50              /* Intel Merced */

    Elf Flags: value in e_flags field of Elf{32,64}_hdr

	These flags are processor specific. Here are the ones that HP
	has defined for parisc (for HP-UX, but we might as well share
	them). Right now, the only ones that should apply for Linux
	are EL_PARISC_WIDE, EFA_PARISC_1_1 and EFA_PARISC_2_0.

	#define EF_PARISC_TRAPNIL       0x00010000 /* Trap nil pointer dereferences */
	#define EF_PARISC_EXT           0x00020000 /* Program uses arch. extensions */
	#define EF_PARISC_LSB           0x00040000 /* little-endian                 */
	#define EF_PARISC_WIDE          0x00080000 /* 64-bits                       */
	#define EF_PARISC_NO_KABP       0x00100000 /* kernel assisted branch pred.  */
	#define EF_PARISC_LAZYSWAP      0x00400000 /* lazy swap for dyn prog segs   */
	#define EF_PARISC_ARCH          0x0000FFFF /* Architecture version mask */
	#define EFA_PARISC_1_0          0x020b /* PA-RISC 1.0 */
	#define EFA_PARISC_1_1          0x0210 /* PA-RISC 1.1 */
	#define EFA_PARISC_2_0          0x0214 /* PA-RISC 2.0 */


From - Thu Nov 08 21:13:53 2018
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Subject: [parisc-linux] space registers
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a small optimisation just occurred to me.

right now, when we switch to kernel space, we set all of sr4-sr7 to 0
(for the kernel mapping).  we don't need to do that since the kernel is
entirely in sr7's domain.  this has the added bonus that badly written
drivers which blindly dereference userspace pointers will work on
parisc as well as x86.  we can also lazily restore sr4-6 on exit from
kernel space if we're switching back to the same task which called us.
this optimisation may not be worthwhile, but i think setting sr4-6
on entry to the kernel is unnecessary.

-- 
Revolutions do not require corporate support.


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= 
=     2) 64 bit parisc binaries (currently just vmlinux) are currently using
=     the Elf32_hdr type.  They should be changed to use the Elf64_hdr type.

This I don't understand.  Palo (and palo's boot loader, and hpux's
boot loader) successfully use
eh.e_ident[EI_CLASS] == ELFCLASS32 and eh.e_ident[EI_CLASS] == ELFCLASS64
along with (__be16_to_cpu(eh.e_machine) == EM_PARISC)
to distinguish 32/64-bit parisc executables.  In the 64-bit case, palo
happily uses struct elf64_phdr to grok the 64-bit vmlinux header.
palo/lib/elf*.c has the details if they're of interest.

Palo has some potential problems: it doesn't check ABI, assumes
big endian byte order, and assumes that 64-bit ELF headers imply
a wide kernel (calling PDC and setting the W bit appropriately).

	-P


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Subject: Re: [parisc-linux] unable to run palo on nfs root
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= Hi,
= 
= I have booted HP A class server from nfsroot. but when I try to run palo on 
= the server to initialize boot loader to the hdd I get
= "cannot execute the binary file"
= 
= can any one help me to make the hdd bootable

It would help me to see the actual command you used and the actual
error message(s) printed.  With the info you give so far it could be
"a million" things.

	-P


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From: Kailashnath V Rampure <kailasr@webcash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] unable to run palo on nfs root
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Hi Paul,

After booting the Server from NFSroot I need to Initialize the harddisk on 
the server. so I copied the palo and linux in to the nfsroot. I am trying 
to Run the following command:
$ palo -I -k /boot/vmlinux -b /boot/iplboot   -c '2/boot/vmlinux TERM=linux 
HOME=/ root=/dev/sda2' /dev/sda
fisrt partition is 10M of type f0
second partition is /dev/sda2 of type linux native.
Third partition is /dev/sda3 of type linux Swap

Then I get the cannot execute binary file.

second question is that what is the Terminal type I should set as I am 
unable to open vi.

Please suggest the correct steps.
Thanks.
Kailas



At 09:54 AM 10/31/00 -0700, Paul Bame wrote:
>= Hi,
>=
>= I have booted HP A class server from nfsroot. but when I try to run palo on
>= the server to initialize boot loader to the hdd I get
>= "cannot execute the binary file"
>=
>= can any one help me to make the hdd bootable
>
>It would help me to see the actual command you used and the actual
>error message(s) printed.  With the info you give so far it could be
>"a million" things.
>
>         -P


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Alex deVries <adevries@redhat.com> writes:

> And ld.  We need ld help.

Well, this might be the right time to ask:

	I need the ELF specs which should be used.

This is for ld and glibc.

-- 
---------------.      drepper at gnu.org  ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Cygnus Solutions `--' drepper at cygnus.com   `------------------------


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= Hi Paul,
= 
= After booting the Server from NFSroot I need to Initialize the harddisk on 
= the server. so I copied the palo and linux in to the nfsroot. I am trying 
= to Run the following command:
= $ palo -I -k /boot/vmlinux -b /boot/iplboot   -c '2/boot/vmlinux TERM=linux 
= HOME=/ root=/dev/sda2' /dev/sda
= fisrt partition is 10M of type f0
= second partition is /dev/sda2 of type linux native.
= Third partition is /dev/sda3 of type linux Swap

That looks great.

= Then I get the cannot execute binary file.

Ok I think we changed the kernal such that the old palo bits won't run
any more (we removed the old gateway page).  I uploaded a new version:
ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/palo-200001031.tgz

	-P


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From: Grant Grundler <grundler@cup.hp.com>
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Date: Tue, 31 Oct 2000 13:53:04 -0800
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             <5.0.0.25.0.20001031125250.00ad6430@mail.webcash.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:8278

Kailashnath V Rampure wrote:
> fisrt partition is 10M of type f0
> second partition is /dev/sda2 of type linux native.
> Third partition is /dev/sda3 of type linux Swap

Kailashnath,
Even though your partitioning should work fine, you really want the
swap on the lowest numbered SCSI block you can get away with.

Several reasons for this:
o lowest block number is on the outside of the SCSI disk were data
  xfer rate is typically 80% faster than the inside.
  (someday try "time dd if=/dev/sda of=/dev/null bs=8k count=50"
   with and with out skip parameter).
o Eventualy we will have kernel dumps to swap space - and IODC
  will likely have the same limitations where on the disk
  dump can be as we have with booting from a disk (as discussed in 
  the PALO documentation).

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] New cross-compiler
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I have placed a new i386-linux -> hppa32/64-linux cross compiler (with 32bit 
glibc) in,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20001031.tar.gz

It includes Alan Modra's recent fix for the 64 bit compiler,

http://puffin.external.hp.com/mailing-lists/parisc-linux-cvs/2000/10-Oct/0233.h
tml

-- 
Matt Taggart
taggart@fc.hp.com



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From: Phillip Beal <pdbeal@bealz.net>
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Subject: [parisc-linux] 735 and Thin Lan
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Hey,

I've obtained two HP 735's and I'd like to try the linus port on them.
I have compiled a kernel, but it never boots the nfsroot disk.  It has
the same problem that the HP 755 that I've worked with.  However, it has
a different ethernet connection.  The 735 has a thin lan connection.
What network device should be used in the kernel to be able to use the
thin lan adapter?  Here's the info on the Thin lan:

Outfield Core LAN (802.3) (10) at 0xf0826000 versions 0x9, 0x0, 0x72,
0x0, 0x0

Thanks,
-- 
Phillip Beal
S+LUG Vice-President


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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] 735 and Thin Lan
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On Wednesday 01 November 2000 00:43, Phillip Beal wrote:
> Hey,
> 
> I've obtained two HP 735's and I'd like to try the linus port on them.
> I have compiled a kernel, but it never boots the nfsroot disk.  It has
> the same problem that the HP 755 that I've worked with.  However, it has
> a different ethernet connection.  The 735 has a thin lan connection.
> What network device should be used in the kernel to be able to use the
> thin lan adapter?  Here's the info on the Thin lan:
> 
> Outfield Core LAN (802.3) (10) at 0xf0826000 versions 0x9, 0x0, 0x72,
> 0x0, 0x0
> 
> Thanks,
> Phillip Beal
> S+LUG Vice-President

Hi Phillip,

I think the "Lasi ethernet"-driver (enabled by default in our configuration) 
should work on both of your boxes.

Helge.


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] The new PS/2 Keyboard Driver
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On Friday 27 October 2000 01:50, Helge Deller wrote:
> On Thursday 26 October 2000 22:05, Thomas Marteau wrote:
> 
> > > 
> > Hello everyone,
> > 
> > We've just updated the PS/2 keyboard driver. The leds and interrupt
> > functions work really well on a 712 workstation and also B132 now. The
> > updated driver files are available on our website. It works better than
> > under HP UX for the B 132 ;->
> > 
> > http://www.esiee.fr/~djoudim
> > 
> > The ESIEE Port Team in Paris.
> > 
> > Here is the patch:
> > 
> > diff -urN linux/drivers/char/gsc_ps2.c linux-parisc/drivers/char/gsc_ps2.c
> > --- linux/drivers/char/gsc_ps2.c Thu Oct 26 21:06:54 2000
> > +++ linux-parisc/drivers/char/gsc_ps2.c Thu Oct 26 21:34:00 2000
> > @@ -7,6 +7,11 @@
> >  [.............]
> 
> > diff -urN linux/drivers/char/keyb_at.c linux-parisc/drivers/char/keyb_at.c
> > --- linux/drivers/char/keyb_at.c Thu Oct 26 21:07:00 2000
> > +++ linux-parisc/drivers/char/keyb_at.c Thu Oct 26 21:23:16 2000
> > [........]
> 
> Hi Thomas,
> 
> Thanks for your patch. 
> But I don't think it's a good idea to change a common file like keyb_at.c, 
> which is used in most other arches too. This patch surely breaks their 
> keyboard support and more than that I'm sure, that Linus will not accept 
this 
> patch, when the time is come to integrate parisc into the official kernel.
> 
> Isn't there any other solution as for example to #ifdef the code or create 
a 
> new keyb_at.c for parisc (Yes I know, both of those aren't clean too.) ?
> 
> Helge Deller


Hi folks,

I need to correct myself on this topic. The ESIEE-team made a great patch and 
didn't changed any globally used file.  keyb_at.c is just used in the current 
parisc-port, and so it's ok to change that file.

I just committed their changes to the CVS, and in the same cycle tried to 
clean up the code. In the same step I renamed the original filenames to some 
hopefully better ones.

Since I don't own myself a real HP PS/2 keyboard (it's just an PC-AT one with 
a small DIN to PS/2-connector), it would be great to get some feedback if I 
did the Right Thing.

Helge.


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From: "Brian S. Julin" <bri@mojo.calyx.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] The new PS/2 Keyboard Driver
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Probably best not to worry about cleaning keyboard drivers up too much.
The current USB code will be followed by linux-input style drivers at
some point.  In fact I started a HIL linux-input style driver, which
would abstract the PS2 port/HIL ports and allow a standard keyboard module
to be hooked into the abstracted serio port.  I will work on it more when
time permits.

--
Brian S. Julin




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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Elf Header change proposal
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Paul and Alan pointed out that I goofed. I analyzed the vmlinux in my 64
bit build area to get the current flags, but it turns out that the vmlinux
I looked at was a 32 bit version. I had recently made some 64 bit checkins,
and I like to rebuild everything for 32 bit before doing that, to make
sure that I haven't broken the 32 bit path by making 64 bit changes.

So, the bad news is that I wasted time writing an unecessarily long
design proposal. The good news is that the only thing that needs to
change is value in the e_ident[EI_OSABI] field, so that we can
differentiate 64 bit HP-UX binaries from 64 bit Linux binaries.
We should also change the field for 32 bit Linux also.

John


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Matthew Wilcox wrote:

> a small optimisation just occurred to me.
>
> right now, when we switch to kernel space, we set all of sr4-sr7 to 0
> (for the kernel mapping).  we don't need to do that since the kernel is
> entirely in sr7's domain.  this has the added bonus that badly written
> drivers which blindly dereference userspace pointers will work on
> parisc as well as x86.  we can also lazily restore sr4-6 on exit from
> kernel space if we're switching back to the same task which called us.
> this optimisation may not be worthwhile, but i think setting sr4-6
> on entry to the kernel is unnecessary.

True for now.  But it won't always be true.  It is a desired goal to be
able to support large (~3.5 Gb) physical memory for the 32 bit port.  To
do this we will move the kernel down to around virtual address 0, so the
kernel address space will then be controlled by sr4, and depending on the
amount of physical memory in the machine, possibly sr5, sr6, and sr7.  We
could do this based on a test of the amount of physical memory in the
machine, but once you load something from memory to do the test, and then
actually do the test, you wouldn't have any advantage over just writing
zero's to the space registers.

This might be worth considering for the 64 bit port, since both the kernel
and user space will reside entirely within the linear address space
covered by sr4 (We would have to go to a 1 Mb page size to be able to
support greater than a 62 bit address space with three level page tables).
sr5,sr6, and sr7 will only be used when we are running 64 bit HP-UX
processes (with its address space broken up into 4 segments).  Note that
since we just store the users space in sr3 while we are in the kernel, its
not clear that any kind of test with a branch would be a performance gain,
especially if it required that we load something from memory to do that
test.  We may be able cover this by managing sr5, sr6 and sr7 only in the
HP-UX specific parts of the syscall path.

John


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On Wed, 1 Nov 2000, John Marvin wrote:

> So, the bad news is that I wasted time writing an unecessarily long
> design proposal. The good news is that the only thing that needs to
> change is value in the e_ident[EI_OSABI] field, so that we can
> differentiate 64 bit HP-UX binaries from 64 bit Linux binaries.
> We should also change the field for 32 bit Linux also.

Some other bad news is that the change isn't quite trivial, due to not
wishing to break other bfd targets.  The good new is I've made the
change.  Compiling at the moment.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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On 17 Apr 1999, Ulrich Drepper wrote:
> Alex deVries <adevries@redhat.com> writes:
> > And ld.  We need ld help.
> 
> Well, this might be the right time to ask:
> 	I need the ELF specs which should be used.
> This is for ld and glibc.

And the answer to this is:  
- the only docs we have for 32 bit ELF from HP are quite old
- if they're incomplete, it's up to us fill in the information
- this is a good forum to ask directed questions on this topic

Which parts of the ELF spec are not contained in the existing HP document?

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team




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From: Paul Bame <bame@noam.fc.hp.com>
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Subject: [parisc-linux] new method for 64-bit parisc tree
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I want to propose/discuss a new method for maintaining our 64-bit parisc
tree in relation to the 32-bit tree.  I have prototyped this and so
far it seems pretty useful.

Most of the files in the current parisc64 tree only contain one 
line, a #include of the same file from the parisc tree.  This confuses
'make dep', causes some compile errors to have nonsense line numbers,
and doesn't allow direct editing of the source files in the parisc64 tree.

The method I'm proposing works like this:

The future parisc64 tree ONLY contains files which are different from,
or in addition to, those in the parisc tree.  When you 'make config'
or 'make oldconfig', each file in the parsic tree is symbolically
linked as the same file in the parisc64 tree.  This enables all
the rest of the tools/build to work normally.  'make distclean' includes
a step to remove all the symlinks.

The ugliest "feature" is that even though you can edit source files
in the parisc64 tree, 'cvs commit' will fail on those which are
symbolic links.  To reduce this problem, I'm dropping a symbolic link
called '...' in each parisc64 directory which is a pointer to the
corresponding parisc directory, so 'cd ...; cvs commit foo.c' will
work and not be too onerous.

We should additionally consider a naming convention or something so
that maintainers in the parisc tree know whether files are shared with
parisc64 or not.

I prototyped this as a fictional new "architecture" called "p64".  To
try it out, grab the tarball (only about 30 files -- can be fewer)
ftp://puffin.external.hp.com/pub/parisc/
and unpack in your top-level linux source tree directory.  Then in
your top-level Makefile, change ARCH := parisc64 to ARCH := p64, then
make oldconfig or whatever you usually do.  Let me know of any problems.

Is this something we should adopt for the real parisc64 tree?

	-Paul Bame


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Subject: Re: [parisc-linux] NEW NATIVE PALO TARBALL - REQUIRED
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Thanks paul I was able to run the command.

Can you let me know what I should type at ISL prompt as its trying to boot 
from /stand/vmunix instead of /boot/vmlinux. Also I am unable to open vi as 
it says vi:LINUX:unknown terminal type.

Please suggest.
Regards

At 02:26 PM 10/31/00 -0700, Paul Bame wrote:
>= Hi Paul,
>=
>= After booting the Server from NFSroot I need to Initialize the harddisk on
>= the server. so I copied the palo and linux in to the nfsroot. I am trying
>= to Run the following command:
>= $ palo -I -k /boot/vmlinux -b /boot/iplboot   -c '2/boot/vmlinux TERM=linux
>= HOME=/ root=/dev/sda2' /dev/sda
>= fisrt partition is 10M of type f0
>= second partition is /dev/sda2 of type linux native.
>= Third partition is /dev/sda3 of type linux Swap
>
>That looks great.
>
>= Then I get the cannot execute binary file.
>
>Ok I think we changed the kernal such that the old palo bits won't run
>any more (we removed the old gateway page).  I uploaded a new version:
>ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/palo-200001031.tgz
>
>         -P


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On Wed, Nov 01, 2000 at 01:53:24PM -0700, Paul Bame wrote:
> CVSROOT:	/home/cvs/parisc
> Module name:	linux
> Changes by:	bame	00/11/01 13:53:24
> 
> Modified files:
> 	include/asm-parisc64: posix_types.h 
> 
> Log message:
> Don't need a separate copy of this one either

err.. are you sure?  we used to get a lot of prototype problems when they
were the same file.  what's changed that they're now able to be the same?

-- 
Revolutions do not require corporate support.


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= On Wed, Nov 01, 2000 at 01:53:24PM -0700, Paul Bame wrote:
= > CVSROOT:	/home/cvs/parisc
= > Module name:	linux
= > Changes by:	bame	00/11/01 13:53:24
= > 
= > Modified files:
= > 	include/asm-parisc64: posix_types.h 
= > 
= > Log message:
= > Don't need a separate copy of this one either
= 
= err.. are you sure?  we used to get a lot of prototype problems when they
= were the same file.  what's changed that they're now able to be the same?

I changed the parisc version so that the data types would compile to
the same size in both wide and narrow mode.  Unfortunately there is
at least one issue which will probably require this scheme to change :-(

	-P


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Xref: news.gmane.org gmane.linux.ports.parisc:8292

Hi Richard (et al),
I finally think I understand how pcibios_align_resource() is used...
that definitely was the problem. Everything on A500 but PCI-PCI bridge
seems to be assigned I/O port and MMIO addresses correctly.

I'll look at tulip code tomorrow to see why it's not happy.
6 Tulips are behind PCI-PCI Bridges and that's part of
the problem. But the complaints about "MMIO resource"
list I/O Port addresses instead...and those look fine to me
if they are treated like I/O port addresses...

I'd also like to connect some more SCSI disks....but any clue
what the "CACHE TEST FAILED" is about?

But instead of putting out another tar ball, I'm committing my code.
I haven't tested on c3k/j5k yet and it might be broken.
32-bit still builds and any fix should be simple - either
cvs update back to an older date or put "if (pdc_pat) { }"
around anything that I added that shouldn't be.
Tell me to test/fix any brokeness you might find and I'll
make time to do it.

aplogies for the long delay,
grant


Firmware Version  40.32

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      440  MHz   Active                 Functional         512 KB   1 MB
      1      440  MHz   Idle                   Functional         512 KB   1 MB

  Central Bus Speed (in MHz)  :        111  
  Available Memory            :     262144  KB
  Good Memory Required        :      11468  KB

   Primary boot path:    0/0/1/1.15          
   Alternate boot path:  0/0/2/1.15          
   Console path:         0/0/4/0.0           
   Keyboard path:        0/0/4/0.0           

 WARNING:  The non-destructive test bit was set, so memory was not tested 
            destructively.  Information only, no action required. 


---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > bo lan
Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Network Station Address 00306e-03799f
System IP Address 15.8.80.78
Server IP Address 15.8.81.247

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@hpisp747 Tue Oct 31 16:45:27 PST 2000
0/vmlinux 2708507 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa64 '
Kernel: partition 0 file /vmlinux
ELF64 executable

Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1705408 mediaptr 0x1000
Segment 1 load 002a2000 size 407616 mediaptr 0x1a2000
Segment 2 load 00308000 size 131960 mediaptr 0x206000
Segment 3 load 0032c000 size 16384 mediaptr 0x227000
branching to kernel entry point 0x00100000
Set default PSW W bit to 1
PDC Console Initialized
The 64-bit Kernel has started...
Enabled FP coprocessor
If this is the LAST MESSAGE YOU SEE, you're probably using
32-bit millicode by mistake.
Free memory starts at: 0xc0371000
start_parisc(0x504d40,0x504d40,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa64 '
PALO initrd 0-0
model   00005cb0 00000491 00000000 00000001 23355fdc 100000f0 00000008 000000b2 000000b2
vers    00000300
cpuid   0000022a
CPUID vers 17 rev 10
Searching for devices in PDC firmware... processor hpa 0xfffffffffffa0000
CELL_GET_NUMBER: 0x0 0x1
PAT_ENTITY_PROC: id_eid 0xa0ff0000
PAT_ENTITY_PROC: id_eid 0xa2ff0000
PAT_ENTITY_MEM: amount 0x10000000 min_gni_base 0x0 min_gni_len 0x0
PAT_ENTITY_SBA: ranges 6
        0: 0xc000000000000005 0xfffffffffed18000 0xfffffffffed2ffff
        1: 0x8000000000000000 0x0000000000000000 0x000000000000003f
        2: 0x8000000000000001 0xfffffffff8000000 0xfffffffffbffffff
        3: 0x00040000001a1701 0xfffffffff0000000 0xfffffffff7ffffff
        4: 0x00040000001a1701 0xfffffffffc000000 0xfffffffffecfffff
        5: 0x8000000000000002 0xfffffff800000000 0xfffffffbffffffff

PAT_ENTITY_LBA: ranges 4
        0: 0x8000000000000000 0x0000000000000000 0x0000000000000007
        1: 0x8000000000000001 0xfffffffff8000000 0xfffffffff87fffff
        2: 0x8000000000000002 0xfffffff804000000 0xfffffff87fffffff
        3: 0x8000000000000004 0xfffffff800000000 0xfffffff803ffffff

PAT_ENTITY_LBA: ranges 4
        0: 0x8000000000000000 0x0000000000000010 0x0000000000000017
        1: 0x8000000000000001 0xfffffffff9000000 0xfffffffff97fffff
        2: 0x8000000000000002 0xfffffff904000000 0xfffffff97fffffff
        3: 0x8000000000000004 0xfffffff900000000 0xfffffff903ffffff

PAT_ENTITY_LBA: ranges 4
        0: 0x8000000000000000 0x0000000000000020 0x0000000000000027
        1: 0x8000000000000001 0xfffffffffa000000 0xfffffffffa7fffff
        2: 0x8000000000000002 0xfffffffa04000000 0xfffffffa7fffffff
        3: 0x8000000000000004 0xfffffffa00000000 0xfffffffa03ffffff

PAT_ENTITY_LBA: ranges 4
        0: 0x8000000000000000 0x0000000000000030 0x0000000000000037
        1: 0x8000000000000001 0xfffffffffb000000 0xfffffffffb7fffff
        2: 0x8000000000000002 0xfffffffb04000000 0xfffffffb7fffffff
        3: 0x8000000000000004 0xfffffffb00000000 0xfffffffb03ffffff

Found devices:
1. Crescendo 440 (0) at 0xfffffffffffa0000, versions 0x5cb, 0x0, 0x4, 0x0, 0x91
2. Crescendo 440 (0) at 0xfffffffffffa2000, versions 0x5cb, 0x0, 0x4, 0x0, 0x91
3. Crescendo Memory (1) at 0xfffffffffed08000, versions 0x9b, 0x0, 0x9, 0x0, 0x0
4. Astro BC Runway Port (12) at 0xfffffffffed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
5. Elroy PCI Bridge (13) at 0xfffffffffed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. Elroy PCI Bridge (13) at 0xfffffffffed34000, versions 0x782, 0x0, 0xa, 0x0, 0x0
7. Elroy PCI Bridge (13) at 0xfffffffffed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
8. Elroy PCI Bridge (13) at 0xfffffffffed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
That's a total of 8 devices.
CONFIG_SMP disabled - not claiming addional CPUs
Warning : device (0, 0x5cb, 0x0, 0x4, 0x0) NOT claimed by CPU PARISC
CPU(s): 1 x PA8500 (PCX-W) at 440.000000 MHz
Linux version 2.4.0-test6 (grundler@hpisp747) (gcc version 2.96 20000925 (experimental)) #73 Wed Nov 1 23:58:51 PST 2000
free_bootmem(0x373000, 0xfc8d000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 65536
zone(0): 32768 pages.
zone(1): 32768 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa64 
trap_init
Calibrating delay loop... 878.18 BogoMIPS
kernel BUG at page_alloc.c:106!
Memory: 248868k available
Dentry-cache hash table entries: 32768 (order: 7, 524288 bytes)
Buffer-cache hash table entries: 16384 (order: 5, 131072 bytes)
Page-cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 16384 (order: 6, 262144 bytes)
POSIX conformance testing by UNIFIX
lba version TR4.0 (0x5) found at 0xfffffffffed30000
     0: 0x8000000000000000      PA 0x0000000000000000,0x0000000000000007
                                IO 0x0000000000000000,0x0000000000000007
     1: 0x8000000000000001      PA 0xfffffffff8000000,0xfffffffff87fffff
                                IO 0x00000000f8000000,0x00000000f87fffff
     2: 0x8000000000000002      PA 0xfffffff804000000,0xfffffff87fffffff
                                IO 0x000000f804000000,0x000000f87fffffff
lba range[2] : ignoring GMMIO (0xfffffff804000000)
     3: 0x8000000000000004      PA 0xfffffff800000000,0xfffffff803ffffff
                                IO 0x000000f800000000,0x000000f803ffffff
lba_fixup_bus(0x00000000cffe60c0) bus 0 sysdata 0x00000000cffe9e80
   cons 0x00002000 boot 0x00000000 kbd 0x00002000
   claimed 00:00 0 [0,7f]/101
   claimed 00:00 1 [fffffffff8020000,fffffffff80203ff]/200
   claimed 00:20 0 [fffffffff8000000,fffffffff8000fff]/200

LBA PIOP resource tree
  00000000cffe9ed0 [0,7ffff]/100
    00000000cffe5080 [0,7f]/101
LBA pcibios_size_bridges()
LBA pci_assign_unassigned_resources()
pcibios_update_resource(00:08, ..., 0) [100,1ff]/101
pcibios_update_resource(00:08, ..., 1) [fffffffff8001000,fffffffff80013ff]/204
PCI: dev PCI device 1000:000b type 64-bit
pcibios_update_resource(00:08, ..., 3) [fffffffff8002000,fffffffff8003fff]/204
PCI: dev PCI device 1000:000b type 64-bit
pcibios_update_resource(00:09, ..., 0) [200,2ff]/101
pcibios_update_resource(00:09, ..., 1) [fffffffff8001400,fffffffff80017ff]/204
PCI: dev PCI device 1000:000b type 64-bit
pcibios_update_resource(00:09, ..., 3) [fffffffff8004000,fffffffff8005fff]/204
PCI: dev PCI device 1000:000b type 64-bit
pcibios_update_resource(00:10, ..., 0) [300,3ff]/101
pcibios_update_resource(00:10, ..., 1) [fffffffff8001800,fffffffff80018ff]/200
pcibios_update_resource(00:10, ..., 2) [fffffffff8006000,fffffffff8006fff]/200
pcibios_update_resource(00:11, ..., 0) [400,4ff]/101
pcibios_update_resource(00:11, ..., 1) [fffffffff8001900,fffffffff80019ff]/200
pcibios_update_resource(00:11, ..., 2) [fffffffff8007000,fffffffff8007fff]/200
pcibios_update_resource(00:20, ..., 1) [80,bf]/101
pcibios_update_resource(00:28, ..., 0) [fffffffff8008000,fffffffff8008fff]/200
pcibios_update_resource(00:28, ..., 1) [c0,ff]/101
LBA pci_set_bus_ranges()
pcibios_fixup_pbus_ranges(0, [0,1000 fffffffff8000000,fffffffff8100000])
lba version TR4.0 (0x5) found at 0xfffffffffed34000
     0: 0x8000000000000000      PA 0x0000000000000010,0x0000000000000017
                                IO 0x0000000000000010,0x0000000000000017
     1: 0x8000000000000001      PA 0xfffffffff9000000,0xfffffffff97fffff
                                IO 0x00000000f9000000,0x00000000f97fffff
     2: 0x8000000000000002      PA 0xfffffff904000000,0xfffffff97fffffff
                                IO 0x000000f904000000,0x000000f97fffffff
lba range[2] : ignoring GMMIO (0xfffffff904000000)
     3: 0x8000000000000004      PA 0xfffffff900000000,0xfffffff903ffffff
                                IO 0x000000f900000000,0x000000f903ffffff
lba_fixup_bus(0x00000000cffe62c0) bus 16 sysdata 0x00000000cffe61c0
   cons 0x00002000 boot 0x00000000 kbd 0x00002000

LBA PIOP resource tree
  00000000cffe6210 [100000,17ffff]/100
LBA pcibios_size_bridges()
LBA pci_assign_unassigned_resources()
pcibios_update_resource(10:00, ..., 1) [100000,1000ff]/101
pcibios_update_resource(10:00, ..., 2) [100100,1001ff]/101
pcibios_update_resource(10:00, ..., 3) [fffffffff9000000,fffffffff90001ff]/200
pcibios_update_resource(10:00, ..., 5) [fffffffff9020000,fffffffff903ffff]/200
LBA pci_set_bus_ranges()
pcibios_fixup_pbus_ranges(0, [0,1000 fffffffff8000000,fffffffff8100000])
pcibios_fixup_pbus_ranges(16, [100000,101000 fffffffff9000000,fffffffff9100000])
lba version TR4.0 (0x5) found at 0xfffffffffed38000
     0: 0x8000000000000000      PA 0x0000000000000020,0x0000000000000027
                                IO 0x0000000000000020,0x0000000000000027
     1: 0x8000000000000001      PA 0xfffffffffa000000,0xfffffffffa7fffff
                                IO 0x00000000fa000000,0x00000000fa7fffff
     2: 0x8000000000000002      PA 0xfffffffa04000000,0xfffffffa7fffffff
                                IO 0x000000fa04000000,0x000000fa7fffffff
lba range[2] : ignoring GMMIO (0xfffffffa04000000)
     3: 0x8000000000000004      PA 0xfffffffa00000000,0xfffffffa03ffffff
                                IO 0x000000fa00000000,0x000000fa03ffffff
lba_fixup_bus(0x00000000cffe64c0) bus 32 sysdata 0x00000000cffe63c0
   cons 0x00002000 boot 0x00000000 kbd 0x00002000

LBA PIOP resource tree
  00000000cffe6410 [200000,27ffff]/100
LBA pcibios_size_bridges()
LBA pci_assign_unassigned_resources()
pcibios_update_resource(20:00, ..., 0) [200000,2000ff]/101
pcibios_update_resource(20:00, ..., 1) [fffffffffa000000,fffffffffa0003ff]/204
PCI: dev PCI device 1000:000b type 64-bit
pcibios_update_resource(20:00, ..., 3) [fffffffffa002000,fffffffffa003fff]/204
PCI: dev PCI device 1000:000b type 64-bit
pcibios_update_resource(20:01, ..., 0) [200100,2001ff]/101
pcibios_update_resource(20:01, ..., 1) [fffffffffa000400,fffffffffa0007ff]/204
PCI: dev PCI device 1000:000b type 64-bit
pcibios_update_resource(20:01, ..., 3) [fffffffffa004000,fffffffffa005fff]/204
PCI: dev PCI device 1000:000b type 64-bit
LBA pci_set_bus_ranges()
pcibios_fixup_pbus_ranges(0, [0,1000 fffffffff8000000,fffffffff8100000])
pcibios_fixup_pbus_ranges(16, [100000,101000 fffffffff9000000,fffffffff9100000])
pcibios_fixup_pbus_ranges(32, [200000,201000 fffffffffa000000,fffffffffa100000])
lba version TR4.0 (0x5) found at 0xfffffffffed3c000
     0: 0x8000000000000000      PA 0x0000000000000030,0x0000000000000037
                                IO 0x0000000000000030,0x0000000000000037
     1: 0x8000000000000001      PA 0xfffffffffb000000,0xfffffffffb7fffff
                                IO 0x00000000fb000000,0x00000000fb7fffff
     2: 0x8000000000000002      PA 0xfffffffb04000000,0xfffffffb7fffffff
                                IO 0x000000fb04000000,0x000000fb7fffffff
lba range[2] : ignoring GMMIO (0xfffffffb04000000)
     3: 0x8000000000000004      PA 0xfffffffb00000000,0xfffffffb03ffffff
                                IO 0x000000fb00000000,0x000000fb03ffffff
lba_fixup_bus(0x00000000cffe66c0) bus 48 sysdata 0x00000000cffe65c0
   cons 0x00002000 boot 0x00000000 kbd 0x00002000
lba_fixup_bus(0x00000000cffe67c0) bus 49 sysdata 0x00000000cffe65c0
   cons 0x00002000 boot 0x00000000 kbd 0x00002000
lba_fixup_bus(0x00000000cffe68c0) bus 50 sysdata 0x00000000cffe65c0
   cons 0x00002000 boot 0x00000000 kbd 0x00002000

LBA PIOP resource tree
  00000000cffe6610 [300000,37ffff]/100
LBA pcibios_size_bridges()
LBA pci_assign_unassigned_resources()
PCI: Failed to allocate resource 0 for PCI device 1000:000b
PCI: Failed to allocate resource 1 for PCI device 1000:000b
PCI: Failed to allocate resource 3 for PCI device 1000:000b
PCI: Failed to allocate resource 0 for PCI device 1000:000b
PCI: Failed to allocate resource 1 for PCI device 1000:000b
PCI: Failed to allocate resource 3 for PCI device 1000:000b
PCI: Failed to allocate resource 0 for PCI device 1011:0019
PCI: Failed to allocate resource 1 for PCI device 1011:0019
PCI: Failed to allocate resource 0 for PCI device 1011:0019
PCI: Failed to allocate resource 1 for PCI device 1011:0019
PCI: Failed to allocate resource 0 for PCI device 1011:0009
PCI: Failed to allocate resource 1 for PCI device 1011:0009
PCI: Failed to allocate resource 0 for PCI device 1011:0009
PCI: Failed to allocate resource 1 for PCI device 1011:0009
PCI: Failed to allocate resource 0 for PCI device 1011:0009
PCI: Failed to allocate resource 1 for PCI device 1011:0009
PCI: Failed to allocate resource 0 for PCI device 1011:0009
PCI: Failed to allocate resource 1 for PCI device 1011:0009
LBA pci_set_bus_ranges()
pcibios_fixup_pbus_ranges(0, [0,1000 fffffffff8000000,fffffffff8100000])
pcibios_fixup_pbus_ranges(16, [100000,101000 fffffffff9000000,fffffffff9100000])
pcibios_fixup_pbus_ranges(32, [200000,201000 fffffffffa000000,fffffffffa100000])
pcibios_fixup_pbus_ranges(49, [310000,311000 fffffffffb000000,fffffffffb100000])
pcibios_fixup_pbus_ranges(50, [320000,321000 fffffffffb000000,fffffffffb100000])
pcibios_fixup_pbus_ranges(48, [0,1000 fb000000,fb100000])
SBA found Astro 2.1 at 0xfffffffffed00000
lba_init_iregs() ibase 0x1 imask 0xf0000000
lba_init_iregs() base_addr fffffffffed3c000
lba_init_iregs() base_addr fffffffffed38000
lba_init_iregs() base_addr fffffffffed34000
lba_init_iregs() base_addr fffffffffed30000
lba_init_iregs() done
lba: lba_bios_init
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 16Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
Starting kswapd v1.7
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sym53c8xx: at PCI bus 0, device 2, function 0
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
kernel BUG at sym53c8xx.c:725!
sym53c8xx: 53c876 detected 
sym53c8xx: at PCI bus 0, device 2, function 1
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
kernel BUG at sym53c8xx.c:725!
sym53c8xx: 53c876 detected 
sym53c8xx: at PCI bus 0, device 1, function 0
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
kernel BUG at sym53c8xx.c:725!
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 1, function 1
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
kernel BUG at sym53c8xx.c:725!
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 32, device 0, function 0
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
kernel BUG at sym53c8xx.c:725!
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 32, device 0, function 1
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
kernel BUG at sym53c8xx.c:725!
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 49, device 4, function 0
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
kernel BUG at sym53c8xx.c:725!
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 49, device 4, function 1
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
kernel BUG at sym53c8xx.c:725!
sym53c8xx: 53c896 detected 
kernel BUG at sym53c8xx.c:725!
sym53c876-0: rev 0x14 on pci bus 0 device 2 function 0 irq 130
sym53c876-0: NCR clock is 40218KHz
sym53c876-0: ID 7, Fast-20, Parity Checking
sym53c876-0: on-chip RAM at 0xfffffffff8006000
sym53c876-0: restart (scsi reset).
sym53c876-0: Downloading SCSI SCRIPTS.
kernel BUG at sym53c8xx.c:725!
sym53c876-1: rev 0x14 on pci bus 0 device 2 function 1 irq 131
sym53c876-1: NCR clock is 40218KHz
sym53c876-1: ID 7, Fast-20, Parity Checking
sym53c876-1: on-chip RAM at 0xfffffffff8007000
sym53c876-1: restart (scsi reset).
sym53c876-1: Downloading SCSI SCRIPTS.
kernel BUG at sym53c8xx.c:725!
sym53c896-2: rev 0x7 on pci bus 0 device 1 function 0 irq 129
sym53c896-2: NCR clock is 40218KHz
sym53c896-2: ID 7, Fast-40, Parity Checking
sym53c896-2: on-chip RAM at 0xfffffffff8002000
sym53c896-2: restart (scsi reset).
sym53c896-2: handling phase mismatch from SCRIPTS.
sym53c896-2: Downloading SCSI SCRIPTS.
kernel BUG at sym53c8xx.c:725!
sym53c896-3: rev 0x7 on pci bus 0 device 1 function 1 irq 130
sym53c896-3: NCR clock is 40218KHz
sym53c896-3: ID 7, Fast-40, Parity Checking
sym53c896-3: on-chip RAM at 0xfffffffff8004000
sym53c896-3: restart (scsi reset).
sym53c896-3: handling phase mismatch from SCRIPTS.
sym53c896-3: Downloading SCSI SCRIPTS.
kernel BUG at sym53c8xx.c:725!
sym53c896-4: rev 0x1 on pci bus 32 device 0 function 0 irq 256
sym53c896-4: NCR clock is 40218KHz
sym53c896-4: ID 7, Fast-40, Parity Checking
sym53c896-4: on-chip RAM at 0xfffffffffa002000
sym53c896-4: restart (scsi reset).
sym53c896-4: handling phase mismatch from SCRIPTS.
sym53c896-4: Downloading SCSI SCRIPTS.
kernel BUG at sym53c8xx.c:725!
sym53c896-5: rev 0x1 on pci bus 32 device 0 function 1 irq 257
sym53c896-5: NCR clock is 40218KHz
sym53c896-5: ID 7, Fast-40, Parity Checking
sym53c896-5: on-chip RAM at 0xfffffffffa004000
sym53c896-5: restart (scsi reset).
sym53c896-5: handling phase mismatch from SCRIPTS.
sym53c896-5: Downloading SCSI SCRIPTS.
kernel BUG at sym53c8xx.c:725!
sym53c896-6: rev 0x5 on pci bus 49 device 4 function 0 irq 323
sym53c896-6: ID 7, Fast-40, Parity Checking
sym53c896-6: on-chip RAM at 0xfffffffffb000000
CACHE TEST FAILED: reg dstat-sstat2 readback ffffffff.
CACHE INCORRECTLY CONFIGURED.
sym53c896-6: giving up ...
kernel BUG at sym53c8xx.c:725!
kernel BUG at sym53c8xx.c:725!
kernel BUG at sym53c8xx.c:725!
sym53c896-6: rev 0x5 on pci bus 49 device 4 function 1 irq 320
sym53c896-6: ID 7, Fast-40, Parity Checking
sym53c896-6: on-chip RAM at 0xfffffffffb000000
CACHE TEST FAILED: reg dstat-sstat2 readback ffffffff.
CACHE INCORRECTLY CONFIGURED.
sym53c896-6: giving up ...
kernel BUG at sym53c8xx.c:725!
kernel BUG at sym53c8xx.c:725!
scsi0 : sym53c8xx - version 1.6b
scsi1 : sym53c8xx - version 1.6b
scsi2 : sym53c8xx - version 1.6b
scsi3 : sym53c8xx - version 1.6b
scsi4 : sym53c8xx - version 1.6b
scsi5 : sym53c8xx - version 1.6b
scsi : 6 hosts.
  Vendor: SEAGATE   Model: ST318404LC        Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 03
Detected scsi disk sda at scsi3, channel 0, id 15, lun 0
sym53c896-3-<15,0>: tagged command queue depth set to 8
scsi : detected 1 SCSI disk total.
sym53c896-3-<15,0>: wide msgout: 1-2-3-1.
sym53c896-3-<15,0>: wide msgin: 1-2-3-1.
sym53c896-3-<15,0>: wide: wide=1 chg=0.
sym53c896-3-<15,0>: wide msgout: 1-2-3-1.
sym53c896-3-<15,0>: wide msgin: 1-2-3-1.
sym53c896-3-<15,0>: wide: wide=1 chg=0.
sym53c896-3-<15,0>: sync msgout: 1-3-1-c-1f.
sym53c896-3-<15,0>: sync msg in: 1-3-1-c-1f.
sym53c896-3-<15,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c896-3-<15,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sda: hdwr sector= 512 bytes. Sectors= 35566480 [17366 MB] [17.4 GB]
Partition check:
 sda: unknown partition table
Serial driver version 5.01 (2000-05-29) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Linux Tulip driver version 0.9.8 (July 13, 2000)
tulip: MMIO resource (0x80@0x0) unavailable, aborting
tulip: MMIO resource (0x80@0x310200) unavailable, aborting
tulip: MMIO resource (0x80@0x310280) unavailable, aborting
tulip: MMIO resource (0x80@0x320300) unavailable, aborting
tulip: MMIO resource (0x80@0x320380) unavailable, aborting
tulip: MMIO resource (0x80@0x320400) unavailable, aborting
tulip: MMIO resource (0x80@0x320480) unavailable, aborting
IP-Config: No network devices available.
Switching from PDC console


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] new method for 64-bit parisc tree
Date: Thu, 2 Nov 2000 19:51:19 +1100 (EST)
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On Wed, 1 Nov 2000, Paul Bame wrote:

> The future parisc64 tree ONLY contains files which are different from,
> or in addition to, those in the parisc tree.  When you 'make config'
> or 'make oldconfig', each file in the parsic tree is symbolically
> linked as the same file in the parisc64 tree.  This enables all
> the rest of the tools/build to work normally.  'make distclean' includes
> a step to remove all the symlinks.

Instead, can't you simply play tricks with -I, and add a symbolic link
asm -> ../asm-parisc in asm-parisc64)?  The idea being to end up with
an include path looking like
"-I $(TOPDIR)/include -I $(TOPDIR)/include/asm"

That way, asm/foo.h is found by the first -I if we have asm-parisc64/foo.h,
and is found by the second if asm-parisc/foo.h exists but not
asm-parisc64/foo.h.  Hmm, you might also need -I-

-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] a500.out16
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Xref: news.gmane.org gmane.linux.ports.parisc:8294

On Thu, Nov 02, 2000 at 12:21:36AM -0800, Grant Grundler wrote:
> Hi Richard (et al),
> I finally think I understand how pcibios_align_resource() is used...
> that definitely was the problem. Everything on A500 but PCI-PCI bridge
> seems to be assigned I/O port and MMIO addresses correctly.
> 
> I'll look at tulip code tomorrow to see why it's not happy.

I fixed tulip_core.c to report what it means, which gave me

tulip: MMIO resource (0x400@0xfffffffff8020000) unavailable, aborting

Note sym53c8xx.c doesn't seem to bother with request_mem_region(), so
maybe request_mem_region() is just broken.

I then patched out the goto, so it ignored that error, and....

Linux Tulip driver version 0.9.8 (July 13, 2000)
tulip: MMIO resource (0x400@0xfffffffff8020000) unavailable, aborting
PCI: Setting latency timer of device 00:00.0 to 64
eth0: Digital DS21143 Tulip rev 65 at 0x0, 00:30:6E:03:79:A0, IRQ 128.
eth0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 10.160.240.111, my address is 10.160.240.117
Switching from PDC console

Wheeee!  Nice work Grant!

Richard


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] a500.out16
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Xref: news.gmane.org gmane.linux.ports.parisc:8295

On Thu, Nov 02, 2000 at 12:21:36AM -0800, Grant Grundler wrote:

> I'd also like to connect some more SCSI disks....but any clue
> what the "CACHE TEST FAILED" is about?
....
> sym53c896-6: rev 0x5 on pci bus 49 device 4 function 0 irq 323
> sym53c896-6: ID 7, Fast-40, Parity Checking
> sym53c896-6: on-chip RAM at 0xfffffffffb000000
> CACHE TEST FAILED: reg dstat-sstat2 readback ffffffff.
> CACHE INCORRECTLY CONFIGURED.

I'd guess that the NCR registers are being cached:


static int __init ncr_regtest (struct ncb* np)
{
        register volatile u_int32 data;
        /*
        **      ncr registers may NOT be cached.
        **      write 0xffffffff to a read only register area,
        **      and try to read it back.
        */
        data = 0xffffffff;
        OUTL_OFF(offsetof(struct ncr_reg, nc_dstat), data);
        data = INL_OFF(offsetof(struct ncr_reg, nc_dstat));
#if 1
        if (data == 0xffffffff) {
#else
        if ((data & 0xe2f0fffd) != 0x02000080) {
#endif
                printk ("CACHE TEST FAILED: reg dstat-sstat2 readback %x.\n",
                        (unsigned) data);
                return (0x10);
        };
        return (0);
}


Richard


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From: Friedrich Lobenstock <fl@fl.priv.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP 3000 - 922LX ??
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Hi!

How about support for a HP3000-922LX? I think this should be a PA-RISC
machine.

PS: Please CC me, because I'm not on the list. 
 
MfG / Regards
Friedrich Lobenstock


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Xref: news.gmane.org gmane.linux.ports.parisc:8297

On Thu, Nov 02, 2000 at 10:43:06AM +0000, Richard Hirst wrote:
> On Thu, Nov 02, 2000 at 12:21:36AM -0800, Grant Grundler wrote:
> > Hi Richard (et al),
> > I finally think I understand how pcibios_align_resource() is used...
> > that definitely was the problem. Everything on A500 but PCI-PCI bridge
> > seems to be assigned I/O port and MMIO addresses correctly.
> > 
> > I'll look at tulip code tomorrow to see why it's not happy.
> 
> I fixed tulip_core.c to report what it means, which gave me
> 
> tulip: MMIO resource (0x400@0xfffffffff8020000) unavailable, aborting
> 
> Note sym53c8xx.c doesn't seem to bother with request_mem_region(), so
> maybe request_mem_region() is just broken.

It is broken because of the following line in kernel/resource.c:

struct resource iomem_resource = { "PCI mem", 0x00000000, 0xffffffff, IORESOURCE_MEM };

'end' needs to be rather higher than 0xffffffff on 64 bit.  I changed it to

struct resource iomem_resource = { "PCI mem", 0x00000000, ~0, IORESOURCE_MEM };

and it works.  I havn't committed that 'fix' though.

Richard


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From: Ulrich Drepper <drepper@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel updates.
Date: 18 Apr 1999 00:28:55 -0700
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Alex deVries <adevries@redhat.com> writes:

> And the answer to this is:  
> - the only docs we have for 32 bit ELF from HP are quite old
> - if they're incomplete, it's up to us fill in the information
> - this is a good forum to ask directed questions on this topic

The question is: "is the documentation incomplete or wrong?".

My only comparison is elf.h header in HP/UX 11.  And this header
introduces completely different definitions for the same names.
Something which of course should be avoided under all circumstances.

I thin the first question to be answered is: which relocations must be
supported.  The answer has two parts: the minimal set and the complete
set.

I don't know the HPPA specifics, I only know ELF in general.

-- 
---------------.      drepper at gnu.org  ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Cygnus Solutions `--' drepper at cygnus.com   `------------------------


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 3000 - 922LX ??
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On Thu, Nov 02, 2000 at 12:15:17PM +0100, Friedrich Lobenstock wrote:
> Hi!
> 
> How about support for a HP3000-922LX? I think this should be a PA-RISC
> machine.

According to the docs:
http://www.thepuffingroup.com/parisc/hp9000_models.html

the 922 is the same physical machine as the 822.  As such, it's too old
for it to be worth supporting.  the official statement is...

The earliest PA-RISC servers have proprietary HP devices attached to
proprietary HP bus architectures. It is unlikely that documentation
on these busses and devices will ever become available, since so few
people are interested in spending any effort finding and releasing the
docs. Machines in this category are the E, F, G, H, I class (aka Nova)
and T500 series (Emerald) machines as well as some earlier, unlettered
servers.

I should perhaps update this to reflect the particular model numbers.

-- 
Revolutions do not require corporate support.


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On Thu, Nov 02, 2000 at 10:43:06AM +0000, Richard Hirst wrote:
> Linux Tulip driver version 0.9.8 (July 13, 2000)
> tulip: MMIO resource (0x400@0xfffffffff8020000) unavailable, aborting
> PCI: Setting latency timer of device 00:00.0 to 64
> eth0: Digital DS21143 Tulip rev 65 at 0x0, 00:30:6E:03:79:A0, IRQ 128.
> eth0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
> Sending BOOTP requests.... OK
> IP-Config: Got BOOTP answer from 10.160.240.111, my address is 10.160.240.117
> Switching from PDC console
> 
> Wheeee!  Nice work Grant!

And if you stop it from trying to switch from pdc to ttyS0 console:

Linux Tulip driver version 0.9.8 (July 13, 2000)
PCI: Setting latency timer of device 00:00.0 to 64
eth0: Digital DS21143 Tulip rev 65 at 0x0, 00:30:6E:03:79:A0, IRQ 128.
eth0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 10.160.240.111, my address is 10.160.240.117
kmem_create: Forcing size word alignment - nfs_fh
Looking up port of RPC 100003/2 on 10.160.240.111
Looking up port of RPC 100005/2 on 10.160.240.111
VFS: Mounted root (nfs filesystem) readonly.
Warning: unable to open an initial console.
Kernel panic: Attempted to kill init!

Richard


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On Thu, Nov 02, 2000 at 11:30:47AM +0000, Richard Hirst wrote:
> > Note sym53c8xx.c doesn't seem to bother with request_mem_region(), so
> > maybe request_mem_region() is just broken.
> 
> It is broken because of the following line in kernel/resource.c:
> 
> struct resource iomem_resource = { "PCI mem", 0x00000000, 0xffffffff, IORESOURCE_MEM };
> 
> 'end' needs to be rather higher than 0xffffffff on 64 bit.  I changed it to
> 
> struct resource iomem_resource = { "PCI mem", 0x00000000, ~0, IORESOURCE_MEM };
> 
> and it works.  I havn't committed that 'fix' though.

Probably just as well... the pci_consistent interfaces were designed
partly to stop 32-bit PCI cards having to do dual-address-cycle on
machines with an IOMMU.  if you can, this card should get mapped below
the 32-bit boundary.

-- 
Revolutions do not require corporate support.


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This is why I do NOT like our current scheme of using host
physical addresses to access I/O space.

Richard Hirst wrote:
...
> I'd guess that the NCR registers are being cached:
> 
> 
> static int __init ncr_regtest (struct ncb* np)
> {
>         register volatile u_int32 data;
>         /*
>         **      ncr registers may NOT be cached.
>         **      write 0xffffffff to a read only register area,
>         **      and try to read it back.
>         */
>         data = 0xffffffff;
>         OUTL_OFF(offsetof(struct ncr_reg, nc_dstat), data);
>         data = INL_OFF(offsetof(struct ncr_reg, nc_dstat));

If INL_OFF and OUTL_OFF are broken, they will very likely point
to something in memory - page zero. And happily scribble over
it gsc_write(xxx).

We don't cache I/O space. Never.
Something is definitely broken on this code path.

I'll look at this once I find out what I broke on the j5k/c3k boot path
in lba_pci.c. jsm already restored the previous version of lba_pci.c
so folks can still boot 32-bit on c3k/j5k.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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I want to hear concerns because without serious ones I'm going to
make this change next week...

= Instead, can't you simply play tricks with -I, and add a symbolic link
= asm -> ../asm-parisc in asm-parisc64)?  The idea being to end up with
= an include path looking like
= "-I $(TOPDIR)/include -I $(TOPDIR)/include/asm"
= 
= That way, asm/foo.h is found by the first -I if we have asm-parisc64/foo.h,
= and is found by the second if asm-parisc/foo.h exists but not
= asm-parisc64/foo.h.  Hmm, you might also need -I-

That would function fine for header files, but not for source files
where something like VPATH might work, but is not available to us.  It's
worth noting that both -I and VPATH tricks mean if you have an error
in or need to change a file, you may have to examine two
directories to figure out where it really lives.  The symbolic link
scheme solves some of that problem.

	-P


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On Mon, 30 Oct 2000, Matthew Wilcox wrote:

> This isn't tagged correctly in the hwdb.  Could someone inside linuxcare
> please fix this?  It should be supported by the Apricot driver.

I have updated the hwdb to include the Coral II Core Lan Apricot driver.

-- 
David Kennedy, Technical Account Manager, Linuxcare, Inc.
613.562.9594 tel, 613.562.9304 fax
dkennedy@linuxcare.com, http://www.linuxcare.com/
Linuxcare.  Support for the revolution.



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Matthew Wilcox wrote:
> On Thu, Nov 02, 2000 at 11:30:47AM +0000, Richard Hirst wrote:
> > > Note sym53c8xx.c doesn't seem to bother with request_mem_region(), so
> > > maybe request_mem_region() is just broken.
> > 
> > It is broken because of the following line in kernel/resource.c:
> > 
> > struct resource iomem_resource = { "PCI mem", 0x00000000, 0xffffffff, IORES
>   OURCE_MEM };
> > 
> > 'end' needs to be rather higher than 0xffffffff on 64 bit.  I changed it to
> > 
> > struct resource iomem_resource = { "PCI mem", 0x00000000, ~0, IORESOURCE_ME
>   M };
> > 
> > and it works.  I havn't committed that 'fix' though.
> 
> Probably just as well... the pci_consistent interfaces were designed
> partly to stop 32-bit PCI cards having to do dual-address-cycle on
> machines with an IOMMU.  if you can, this card should get mapped below
> the 32-bit boundary.

Mathew,
That's not the whole story. The value (0xfffffffff8020000) seen by
the PCI driver *is* a 32-bit PCI address - dual address cycles are
not needed. pcibios_update_resource() mangles the address the PCI
device driver uses to fit the BAR it's supposed to get written to.
See arch/parisc/kernel/pci.c and I think you'll understand.

I think you are confusing DMA with PIO (register accesses). The
address above is only used to PIO to access registers and has
nothing to do with DMA (or I/O MMUs).

And PCI device's that can do dual address cycle *should* in
order to *avoid* the I/O MMU. The I/O MMU introduces a latency
in the DMA path which ideally would be avoided. Of course, there
are lots of issues with making that actually work...but it can work.

I haven't looked at the whole issue of 64-bit BAR's yet.
Mostly because I haven't had to. 64-bit BAR's work just fine
when the upper 32-bits are zero'd. :^)   But also because the 896 chip
(older rev's at least) has 64-bit BARs and it didn't work during
N-class bringup in Feb 1999. Currently shipping revs may work.
A hack needs to go into pci_quirks.c to support 896 64-bit BARs.

thanks for the ideas though,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Hallo Puffingroup-Team,

I have a very important question about the installation of the
linux for PARisc.
I hope you can help me!
OK, i have a 725/100 Unix Workstation, i tried to install the PARisc-linux
on this machine. 
The CD is booting from this machine, but in the middle of the booting phase
the system hang on following line: "request_irq(259, c01ec76c, 0x0, asp, c3rcd080)" - So, what's wrong?
How can I go on with the installation?

Bye,
Alexander S.
_______________________________________________________________________
1.000.000 DM gewinnen - kostenlos tippen - http://millionenklick.web.de
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Subject: Re: [parisc-linux] Help!?
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On Thu, Nov 02, 2000 at 07:58:51PM +0100,  Alexander Schck  wrote:
> How can I go on with the installation?

question added to the FAQ:

7. I'm using the Alpha 0.1 release CD and the machine stops after printing 
     request_irq(259, c01ec76c, 0x0, asp, c3rcd080)
   what's going on? 

This is a bug in the kernel shipped on the CD. It only affects certain
machines and has been fixed in the current CVS tree. We recommend you
acquire a newer kernel from the FTP site.

-- 
Revolutions do not require corporate support.


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From: Kailashnath V Rampure <kailasr@webcash.com>
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Subject: [parisc-linux] Boot command
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Hi,
I have run the following command to initialize the sda harddisk. The sda3 
is the linux native partion.
Wen I say boot on the HP server  it is trying to boot from /stand/vmunix 
instead of vmlinux can any one help me about the command. Secondaly I want 
to knwo what is the term type as its not taking vt100 so I am unable to 
open vi.

I have made nesessary changes for the /etc/fstab

$ palo -I -k /boot/vmlinux -b /boot/iplboot -c '3/boot/vmlinux TERM=linux 
HOME=/ root=/dev/sda3' /dev/sda

regards
Kailas


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From: Alex deVries <adevries@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel updates.
Date: Sun, 18 Apr 1999 03:42:40 -0400 (EDT)
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On 18 Apr 1999, Ulrich Drepper wrote:
> Alex deVries <adevries@redhat.com> writes:
> > And the answer to this is:  
> > - the only docs we have for 32 bit ELF from HP are quite old
> > - if they're incomplete, it's up to us fill in the information
> > - this is a good forum to ask directed questions on this topic
> 
> The question is: "is the documentation incomplete or wrong?".

My understanding is that that documentations' always been incomplete, but
not wrong.  Really the best person to talk to is Cary.  Cary?

The documents in question are available at:

http://www.software.hp.com/STK/toc.html#Object

There's some other .h files that might be helpful as well.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team




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From: Grant Grundler <grundler@cup.hp.com>
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Kailashnath V Rampure wrote:
> Hi,
> I have run the following command to initialize the sda harddisk. The sda3 
> is the linux native partion.
> Wen I say boot on the HP server  it is trying to boot from /stand/vmunix 
> instead of vmlinux can any one help me about the command.

Sounds like your system is booting from an existing HPUX installed disk.
Ie you are not using palo.

> Secondaly I want 
> to knwo what is the term type as its not taking vt100 so I am unable to 
> open vi.

TERM=linux is what I've seen before.
The debian ncurses package might need to be installed first though
and vt100 should work too.

Search the mail archive at
	http://puffin.external.hp.com/cgi-bin/mailgrep

grant

> 
> I have made nesessary changes for the /etc/fstab
> 
> $ palo -I -k /boot/vmlinux -b /boot/iplboot -c '3/boot/vmlinux TERM=linux 
> HOME=/ root=/dev/sda3' /dev/sda
> 
> regards
> Kailas
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] Boot command
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Kailashnath V Rampure writes...

> Hi,
> I have run the following command to initialize the sda harddisk. The sda3 
> is the linux native partion.
> Wen I say boot on the HP server  it is trying to boot from /stand/vmunix 
> instead of vmlinux can any one help me about the command.

This means that you are somehow still booting an HP-UX lifimage. Did you 
follow the directions on,

http://www.thepuffingroup.com/parisc/install.html

including the partitioning stuff? Maybe you're still booting off another disk, 
are you sure you're booting from the linux disk?

HTH,

-- 
Matt Taggart
taggart@fc.hp.com



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I downloaded a new kernel from the ftp-site, how
can i use this kernel to work with my machine?
This is a image file, how can i extract this file, or must
i copy it only to the boot-cd?
How can i use this kernel?

Matthew Wilcox <matthew@wil.cx> schrieb am 03.11.00:
> On Thu, Nov 02, 2000 at 07:58:51PM +0100,  Alexander Schck  wrote:
> > How can I go on with the installation?
> 
> question added to the FAQ:
> 
> 7. I'm using the Alpha 0.1 release CD and the machine stops after printing 
>      request_irq(259, c01ec76c, 0x0, asp, c3rcd080)
>    what's going on? 
> 
> This is a bug in the kernel shipped on the CD. It only affects certain
> machines and has been fixed in the current CVS tree. We recommend you
> acquire a newer kernel from the FTP site.
> 
> -- 
> Revolutions do not require corporate support. >


_______________________________________________________________________
1.000.000 DM gewinnen - kostenlos tippen - http://millionenklick.web.de
IhrName@web.de, 8MB Speicher, Verschluesselung - http://freemail.web.de


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Hey,

After all the help I obtained from this list, both through my posts and
through the archives, I've finally gotten the 735 and 755, that I have
access to, to boot and run linux.  However, as soon as it starts to
process init, the console screen becomes garbled.  The system continues
to boot, and I can access the machine via serial console and minicom,
but the physical console on the box, just prints garbage.  Is this
normal for this stage of development?  I couldn't see anything in the
archives, that said it was, so I'm wondering how I fix this problem, if
its been fixed before.  

Thanks, 
-- 
Phillip Beal
Electrical and Computer Engineering
S+LUG Vice-President


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] STI Console problems on 735 and 755
Date: Fri, 03 Nov 2000 11:37:08 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:8314

Phillip Beal wrote:
> After all the help I obtained from this list, both through my posts and
> through the archives, I've finally gotten the 735 and 755, that I have
> access to, to boot and run linux.  However, as soon as it starts to
> process init, the console screen becomes garbled.  The system continues
> to boot, and I can access the machine via serial console and minicom,
> but the physical console on the box, just prints garbage.  Is this
> normal for this stage of development?  I couldn't see anything in the
> archives, that said it was, so I'm wondering how I fix this problem, if
> its been fixed before.

Good to hear that your 735 and 755 start to boot!

What kind of graphics hardware is sitting on a 735 or 755?  I think
we've only ever looked at that on a 712 and 715.  

Can you use serial console in the meantime?

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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Subject: Re: [parisc-linux] STI Console problems on 735 and 755
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Xref: news.gmane.org gmane.linux.ports.parisc:8315

> What kind of graphics hardware is sitting on a 735 or 755?  I think
> we've only ever looked at that on a 712 and 715.  

Both the 735 and the 755 have the following device, that seems be refer
to the graphics:

Coral SGC Graphics (10) at 0xf8000000, version 0x4, 0x0, 0x77, 0x0, 0x0

However, the 755 is known only to use mono graphics, even though they
both report the same info for the Coral SGC Grpahics. 

I hope this helps,

> Can you use serial console in the meantime?

Yeah, serial works just fine.

> 
> - Alex
> 
> -- 
> Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
> 613.562.2759 tel
> alex@linuxcare.com, http://www.linuxcare.com/
> Linuxcare, Support for the revolution.

-- 
Phillip Beal
Electrical and Computer Engineering
S+LUG Vice-President


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From: Kailashnath V Rampure <kailasr@webcash.com>
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Subject: Re: [parisc-linux] Boot command
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Xref: news.gmane.org gmane.linux.ports.parisc:8316

Yes I have been following the same Doc.
its tries to boot from the sda  as I can see the hard disk path. I have 2 
Hdd's one sda and other sdb. the path are 8/16/5.6 and other is 8/16/5.0. 
Here I think /dev/sda is 8/16/5.6.

It is trying to boot but give sthe following o/p:

Boot IO Dependent Code (IODC) revision 144
.... SUCCEEDED!

HARD Booted.
palo ipl bame@noam Tue Oct 31 14:18:02 MST 2000
0/vmlinux 208896 bytes @ 0x1f78c000
0/palo-cmdline '3/boot/vmlinux TERM=linux Home=/ root=/dev/sdb3'
/dev/ida1       82      62              1030688
/dev/ida2       f0      1030750 24738
/dev/ida3       83      1055488 1030750
Kernel:partition 3 file /boot/vmlinux
ext2 block size 1024
ext2_mount(partition 3) returns 0
ext2_open(/boot/vmlinux)=3
Couldn't gork your kernel executabel format failed to load kernel
Failed to load Kernel.

please suggest.

At 06:47 PM 11/2/00 -0700, Matt Taggart wrote:

>Kailashnath V Rampure writes...
>
> > Hi,
> > I have run the following command to initialize the sda harddisk. The sda3
> > is the linux native partion.
> > Wen I say boot on the HP server  it is trying to boot from /stand/vmunix
> > instead of vmlinux can any one help me about the command.
>
>This means that you are somehow still booting an HP-UX lifimage. Did you
>follow the directions on,
>
>http://www.thepuffingroup.com/parisc/install.html
>
>including the partitioning stuff? Maybe you're still booting off another 
>disk,
>are you sure you're booting from the linux disk?
>
>HTH,
>
>--
>Matt Taggart
>taggart@fc.hp.com


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Kailashnath V Rampure wrote:
> Yes I have been following the same Doc.
> its tries to boot from the sda  as I can see the hard disk path. I have 2 
> Hdd's one sda and other sdb. the path are 8/16/5.6 and other is 8/16/5.0. 
> Here I think /dev/sda is 8/16/5.6.

The lower numbered SCSI ID will be /dev/sda.
SCSI devices are lettered in the order they are discovered.
The order is reflected in /proc/scsi/scsi.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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I have removed the 2nd HDD now the boot is trying but I get the same error:
my fstab reads as :

# /etc/fstab: static file system information.
#
# <file system> <mount> <type>  <options>                       <dump> <pass>
#/dev/sda1      /boot   ext2    defaults,errors=remount-ro      0       0
#/dev/sda2      none    swap    sw                              0       0
/dev/sda3       /       ext2    defaults,errors=remount-ro      0       0
# proc          /proc   proc    defaults                        0       0


The erros is as follows:
Boot IO Dependent Code (IODC) revision 144
.... SUCCEEDED!
HARD Booted.
palo ipl bame@noam Tue Oct 31 14:18:02 MST 2000
0/vmlinux 208896 bytes @ 0x1f78c000
0/palo-cmdline '3/boot/vmlinux TERM=linux Home=/ root=/dev/sda3'
/dev/ida1 82 62 1030688
/dev/ida2 f0 1030750 24738
/dev/ida3 83 1055488 1030750
Kernel:partition 3 file /boot/vmlinux
ext2 block size 1024
ext2_mount(partition 3) returns 0
ext2_open(/boot/vmlinux)=3
Couldn't gork your kernel executabel format failed to load kernel
Failed to load Kernel.

Please suggest.


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Subject: Re: testcase for hppa64 gcc bug
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To: alan@linuxcare.com.au (Alan Modra)
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> I think I know what's going on here.  The root of the problem is that
> pa-64.h defines an ARG_POINTER_REGNUM that isn't a fixed reg, and isn't
> eliminable.  The arg_pointer isn't even a call-saved reg.  That breaks a
> number of places in the compiler.
> 
> So I went down the path of trying to fix things properly by defining
> ELIMINABLE_REGS and so on, but I ended in a maze of twisty little passages
> labelled "Unrecognizable instruction", like this one:
> 
> /src/parisc/gcc/gcc/libgcc2.c: In function `__moddi3':
> /src/parisc/gcc/gcc/libgcc2.c:601: Unrecognizable insn:
> (insn 1289 209 1298 (set (reg:SI 50 %fr22)
>         (subreg:SI (plus:DI (reg:DI 30 %r30)
>                 (const_int -272 [0xfffffef0])) 0)) -1 (nil)
>     (nil))
> /src/parisc/gcc/gcc/libgcc2.c:601: Internal compiler error in
> extract_insn, at recog.c:2134

I am making progress in trying to make the arg_pointer register eliminable.
I have fixed the above problem.  What was happening was that reload_as_needed
was incorrectly trying to eliminate the return from millicode calls which
is also register r29.  I have figured out how to hide it from reload with
unspec.

However, the compiler is now too good at eliminating the arg_pointer.  At
-O3, it completely eliminates the arg_pointer.  However, as I read the ABI,
the call must always set the arg_pointer before calls.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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>> > And the answer to this is:  
>> > - the only docs we have for 32 bit ELF from HP are quite old
>> > - if they're incomplete, it's up to us fill in the information
>> > - this is a good forum to ask directed questions on this topic
>> 
>> The question is: "is the documentation incomplete or wrong?".
>
>My understanding is that that documentations' always been incomplete, but
>not wrong.  Really the best person to talk to is Cary.  Cary?

The latest ELF supplement for PA-RISC is Version 1.5, dated August 20, 
1998. I'll send it separately to you, Alex, and you can post it on your 
web page (easier than getting HP's external web server updated). 

This document covers both 32-bit and 64-bit programs, but notes that ELF 
files are supported on HP-UX only for 64-bit programs. Nevertheless, a 
complete set of 32-bit relocations is listed in the document (and, yes, 
some 32-bit relocations have the same number and meaning, but different 
names, as 64-bit relocations).

The document also doesn't contain either Elf-32 or Elf-64 structure 
definitions. I have a separate document that describes Elf-64, but we 
defer to outside documentation for the Elf-32 format (e.g., the SVR4 gABI 
document).

If there are areas considered incomplete, please let me know. I'll do my 
best to answer questions here (first), and update the documents (as I 
have time).

-cary


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From: Paul Bame <bame@noam.fc.hp.com>
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Subject: Re: [parisc-linux] Boot command
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= ext2_open(/boot/vmlinux)=3
= Couldn't gork your kernel executabel format failed to load kernel
= Failed to load Kernel.

That should be "grok" :-)  Apparently you're not using cut/paste for
these error messages.

This is PALO saying that /boot/vmlinux is neither elf32, elf64, nor SOM
format.  I'm guessing, based on some earlier advice I gave when you
were net-booting, that you may have a lifimage there by mistake -- you
need a kernel instead, for example from
ftp://puffin.external.hp.com/pub/parisc/binaries/kernels

To tell for sure, run 'file vmlinux' on that file.  If you get
    vmlinux: 8086 relocatable (Microsoft)
that's probably a lifimage.  You should get this instead:
    vmlinux: ELF 32-bit MSB executable, PA-RISC, version 1, statically linked, not stripped


	-P


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From: Kailashnath V Rampure <kailasr@webcash.com>
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Subject: Re: [parisc-linux] Boot command
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Thanks!  Paul.
Yes I had copied the lifImage there. Now I have downloaded the kernel from 
the link you mentioned.

I am still unable to use vi as it says "linux:unknown terminal type"
Can you help me.

To add features can I add deb packages. I am not that familiar with debian.
Actually I want to build an apache + mod_ssl+mod_perl on A180c.
Regards
Kailas

At 01:30 PM 11/3/00 -0700, Paul Bame wrote:
>= ext2_open(/boot/vmlinux)=3
>= Couldn't gork your kernel executabel format failed to load kernel
>= Failed to load Kernel.
>
>That should be "grok" :-)  Apparently you're not using cut/paste for
>these error messages.
>
>This is PALO saying that /boot/vmlinux is neither elf32, elf64, nor SOM
>format.  I'm guessing, based on some earlier advice I gave when you
>were net-booting, that you may have a lifimage there by mistake -- you
>need a kernel instead, for example from
>ftp://puffin.external.hp.com/pub/parisc/binaries/kernels
>
>To tell for sure, run 'file vmlinux' on that file.  If you get
>     vmlinux: 8086 relocatable (Microsoft)
>that's probably a lifimage.  You should get this instead:
>     vmlinux: ELF 32-bit MSB executable, PA-RISC, version 1, statically 
> linked, not stripped
>
>
>         -P


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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ldd segfaulting?
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I think this may be related to what bdale has been seeing...

frodo:~# cat test.c
int main(int a, char **b) { return 0; }
frodo:~# gcc -o test test.c
frodo:~# ./test
frodo:~# ldd ./test

do_page_fault() pid=144 command='ld.so.1'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001000000100001011
r0-3	 00000000 2aac367c 2aaacd67 2aaaa2f0
r4-7	 2aac367c 2aaab4e8 2aac3622 2aac02b8
r8-11	 20020048 2aaaccb8 2aaaa2f0 00000000
r12-15	 00000081 00000080 200201e8 2001fe10
r16-19	 00000000 00000000 00000000 2aac367c
r20-23	 00000000 2aaaa000 2aaaa000 00000041
r24-27	 2aaaa000 70000021 20020048 00076b50
r28-31	 00000021 20020048 200202c0 2aaacd1b
sr0-4	 00000000 00002003 00000000 00002003
sr4-8	 00002003 00002003 00002003 00002003

IASQ: 00002003 00002003 IAOQ: 2aaadc63 2aaadc67
 IIR: 0ce61280    ISR: 00002003  IOR: 2aac02b8
ORIG_R28: 00086350

do_page_fault() pid=145 command='ld.so.1'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001000000100001011
r0-3	 00000000 2aac367c 2aaacd67 2aaaa2f0
r4-7	 2aac367c 2aaab4e8 2aac3622 2aac02b8
r8-11	 20020048 2aaaccb8 2aaaa2f0 00000000
r12-15	 00000081 00000080 200201e8 2001fe10
r16-19	 00000000 00000000 00000000 2aac367c
r20-23	 00000000 2aaaa000 2aaaa000 00000041
r24-27	 2aaaa000 70000021 20020048 00076b50
r28-31	 00000021 20020048 200202c0 2aaacd1b
sr0-4	 00000000 00002003 00000000 00002003
sr4-8	 00002003 00002003 00002003 00002003

IASQ: 00002003 00002003 IAOQ: 2aaadc63 2aaadc67
 IIR: 0ce61280    ISR: 00002003  IOR: 2aac02b8
ORIG_R28: 00090190
ldd: /lib/ld.so.1 exited with unknown exit code (139)
frodo:~# gcc --version
2.96
frodo:~# ldd --version
ldd (GNU libc) 2.1.95
Copyright (C) 1999 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.
frodo:~# 

Any ideas what's going on? I've tried this both with a Oct26 kernel and
one that is from cvs today. Same results.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ldd segfaulting?
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On Sat, 4 Nov 2000, Randolph Chung wrote:

> frodo:~# ldd ./test
> 
> do_page_fault() pid=144 command='ld.so.1'

Most likely a case of new kernel, ld.so compiled with old gcc.  Old is
earlier than 25th Oct.  Before that gcc put plabels, which need
relocating, in .rodata, which is mapped read-only.  The new kernel
enforces the read-only mapping, so you run into problems when ld.so tries
to relocate itself.

Fortunately, you only need recompile glibc with a new gcc.  Older binaries
with plabels in .rodata are handled OK as ld.so re-maps the segments
read/write, something it doesn't manage to do for itself.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Bdale Garbee <bdale@gag.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] compiler bug?
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In the build of util-linux, compilation of fdisk/fdiskbsdlabel.c fails as 
shown below.  I have placed "gcc -E" output on pehc in ~bdale/fdiskbsdlabel.E
for reference.  

Hacking the makefiles to remove "-O -O2" allows the compile to complete 
cleanly.  

I assume this means something in the compiler is broken?

Bdale



bdale@j5k:/space/debian/util-linux-2.10o/fdisk $ cc -c -O -O2 -fomit-frame-pointer -I../lib -Wall -Wmissing-prototypes -Wstrict-prototypes -DNCH=1  -DSBINDIR=\"/sbin\" -DUSRSBINDIR=\"/usr/sbin\" -DLOGDIR=\"/var/log\" -DVARPATH=\"/var\" -DLOCALEDIR=\"/usr/share/locale\" fdiskbsdlabel.c -o fdiskbsdlabel.o
/usr/include/linux/string.h:12: parse error before "__extension__"
/usr/include/linux/string.h:12: parse error before '&&' token
/usr/include/linux/string.h:14: parse error before "__extension__"
/usr/include/linux/string.h:14: parse error before '(' token
/usr/include/linux/string.h:15: parse error before "__extension__"
/usr/include/linux/string.h:15: parse error before '&&' token
/usr/include/linux/string.h:24: parse error before "__extension__"
/usr/include/linux/string.h:27: parse error before "__extension__"
/usr/include/linux/string.h:33: parse error before "__extension__"
/usr/include/linux/string.h:36: parse error before "__extension__"
/usr/include/linux/string.h:36: parse error before '&&' token
/usr/include/linux/string.h:36: parse error before '}' token
/usr/include/linux/string.h:36: conflicting declarations of `__result'
/usr/include/linux/string.h:36: `__result' previously declared here
/usr/include/linux/string.h:36: parse error before ')' token
/usr/include/linux/string.h:36: `__s2' undeclared here (not in a function)
/usr/include/linux/string.h:36: parse error before ';' token
/usr/include/linux/string.h:36: conflicting declarations of `__result'
/usr/include/linux/string.h:36: `__result' previously defined here
/usr/include/linux/string.h:36: parse error before '}' token
/usr/include/linux/string.h:36: parse error before '}' token
/usr/include/linux/string.h:36: redefinition of `__result'
/usr/include/linux/string.h:36: `__result' previously defined here
/usr/include/linux/string.h:36: `__s1' undeclared here (not in a function)
/usr/include/linux/string.h:36: parse error before ')' token
/usr/include/linux/string.h:36: parse error before ';' token
/usr/include/linux/string.h:36: conflicting declarations of `__result'
/usr/include/linux/string.h:36: `__result' previously defined here
/usr/include/linux/string.h:36: parse error before '}' token
/usr/include/linux/string.h:39: parse error before "__extension__"
/usr/include/linux/string.h:39: parse error before '&&' token
/usr/include/linux/string.h:39: parse error before '}' token
/usr/include/linux/string.h:39: redefinition of `__result'
/usr/include/linux/string.h:36: `__result' previously defined here
/usr/include/linux/string.h:39: parse error before ')' token
/usr/include/linux/string.h:39: `__s2' undeclared here (not in a function)
/usr/include/linux/string.h:39: parse error before ';' token
/usr/include/linux/string.h:39: conflicting declarations of `__result'
/usr/include/linux/string.h:39: `__result' previously defined here
/usr/include/linux/string.h:39: parse error before '}' token
/usr/include/linux/string.h:39: parse error before '}' token
/usr/include/linux/string.h:39: redefinition of `__result'
/usr/include/linux/string.h:39: `__result' previously defined here
/usr/include/linux/string.h:39: `__s1' undeclared here (not in a function)
/usr/include/linux/string.h:39: parse error before ')' token
/usr/include/linux/string.h:39: parse error before ';' token
/usr/include/linux/string.h:39: conflicting declarations of `__result'
/usr/include/linux/string.h:39: `__result' previously defined here
/usr/include/linux/string.h:39: parse error before '}' token
/usr/include/linux/string.h:45: parse error before "__extension__"
/usr/include/linux/string.h:51: parse error before "__extension__"
/usr/include/linux/string.h:61: parse error before "__extension__"
/usr/include/linux/string.h:61: parse error before '\x0'
/usr/include/linux/string.h:61: parse error before '}' token
fdiskbsdlabel.c: In function `xbsd_zaplabel':
fdiskbsdlabel.c:840: warning: `sector' might be used uninitialized in this function
bdale@j5k:/space/debian/util-linux-2.10o/fdisk $ 


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] compiler bug?
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To: Bdale Garbee <bdale@gag.com>
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On Sat, 4 Nov 2000, Bdale Garbee wrote:

> Hacking the makefiles to remove "-O -O2" allows the compile to complete 
> cleanly.  

glibc includes are "smart", and do things like `#if defined __OPTIMIZE__'

> I assume this means something in the compiler is broken?

No, I think it's a problem with glibc, or perhaps just your include files.

> bdale@j5k:/space/debian/util-linux-2.10o/fdisk $ cc -c -O -O2 -fomit-frame-pointer -I../lib -Wall -Wmissing-prototypes -Wstrict-prototypes -DNCH=1  -DSBINDIR=\"/sbin\" -DUSRSBINDIR=\"/usr/sbin\" -DLOGDIR=\"/var/log\" -DVARPATH=\"/var\" -DLOCALEDIR=\"/usr/share/locale\" fdiskbsdlabel.c -o fdiskbsdlabel.o
> /usr/include/linux/string.h:12: parse error before "__extension__"

Your .i file had this in it:

extern char * ___strtok;
extern char * __extension__ ({ char __a0, __a1, __a2; [rest snipped]

which comes from linux/string.h

extern char * ___strtok;
extern char * strcpy(char *,const char *);

The problem being that strcpy is being replaced with an inline
expansion.  Dunno why this is happenning.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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Subject: [parisc-linux] HP9000/730 boot problems
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Hi all,

i have an HP9000/730 (66.6MHz, 32MB RAM, 10MBit Network, CRX graphics,
HIL keyboard & mouse, HP 535MBM SCSI HD).

I got the latest nfsroot, the latest xc and the palo sources from
puffin.external.hp.com.

the parition scheme for the HD (id 6) is

/dev/sdb1   swap   128MB
/dev/sdb2   f0     10MB
/dev/sdb3   ext2   rest

i untarred nfsroot on /dev/sdb3 and changed /etc/fstab accordingly
i installed palo with the following command

/opt/palinux/palo-src/palo/palo -I -k /hydra/hppa/boot/vmlinux -b
/opt/palinux/palo-src/iplboot  -c '3/boot/vmlinux TERM=linux HOME=/
root=/dev/sdb3' /dev/sdb


well, i used /dev/sdb since there is also the scsi fd (id 0)
that is /dev/sda IMHO (i tested alos to use root=/dev/sda3 btw).

some of the boot messages

PDC ROM rev. 2.1
IODC ROM rev. 2.1
32 MB of memory configured and tested.



Selecting a system to boot.

Hard booted.

[...]
now it prints the palo configuration as i installed it
and the hd partition scheme (but /dev/idaXYZ instead of /dev/sdbXYZ
[...]
ext2 block size 1024
ext2_open(/boot/vmlinux) = 3
ext2_mount(partition 3) returns 0
ELF32 executable
[...]

now all recognized devices (SGC craphics, BA, HIL, LAN, 2x RS232, SCSI,
EISA, Core Centronics, HP model 'king Cobra' ...)

the kernel boots actually, but i dumps the stack register and the
processor registers (not included in this mail) after

ASP version 1 at ..... found


thats all.
no message like 'unable to boot root fs' or something ...

any help ?

PS: i tried to use a IBM0664 2.0GB scsi hd before (works fine on
linux/ia32), but i couldn't get it work on hp (i reported this
in a former mail).

PPS: just FYI: the same configuration worked with HP/UX 10.10


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] HP9000/730 boot problems
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"xam@deathsdoor.com" wrote:
> Hi all,
> 
> i have an HP9000/730 (66.6MHz, 32MB RAM, 10MBit Network, CRX graphics,
> HIL keyboard & mouse, HP 535MBM SCSI HD).
> 
> I got the latest nfsroot, the latest xc and the palo sources from
> puffin.external.hp.com.
> 
> the parition scheme for the HD (id 6) is
> 
> /dev/sdb1   swap   128MB
> /dev/sdb2   f0     10MB
> /dev/sdb3   ext2   rest
> 
> i untarred nfsroot on /dev/sdb3 and changed /etc/fstab accordingly
> i installed palo with the following command
> 
> /opt/palinux/palo-src/palo/palo -I -k /hydra/hppa/boot/vmlinux -b
> /opt/palinux/palo-src/iplboot  -c '3/boot/vmlinux TERM=linux HOME=/
> root=/dev/sdb3' /dev/sdb
> 
> 
> well, i used /dev/sdb since there is also the scsi fd (id 0)
> that is /dev/sda IMHO (i tested alos to use root=/dev/sda3 btw).

using /dev/sdb is ok - your palo command looks "right" to me.

> [...]
> now it prints the palo configuration as i installed it
> and the hd partition scheme (but /dev/idaXYZ instead of /dev/sdbXYZ
> [...]
> ext2 block size 1024
> ext2_open(/boot/vmlinux) = 3
> ext2_mount(partition 3) returns 0
> ELF32 executable

This looks like palo loading the vmlinux.

> [...]
> 
> now all recognized devices (SGC craphics, BA, HIL, LAN, 2x RS232, SCSI,
> EISA, Core Centronics, HP model 'king Cobra' ...)
> 
> the kernel boots actually, but i dumps the stack register and the
> processor registers (not included in this mail) after
> 
> ASP version 1 at ..... found

Sounds like ASP support may be broken.
The way to find out where IOAQ and GR2 registers are pointing.
They should point to functions in System.map.
Who is maintaining ASP support?

> PS: i tried to use a IBM0664 2.0GB scsi hd before (works fine on
> linux/ia32), but i couldn't get it work on hp (i reported this
> in a former mail).

Right. I'm pretty sure older PDC/IODC doesn't send START_UNIT command
to the disk drive. The boot drive is expected to spin up on it's own.
I don't know if newer PDC does send START_UNIT either...

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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When linux/arch/parisc/kernel/pci.c built, I get the following
warnings:
/linux/kwdb64/linux/include/linux/string.h:54: warning: conflicting types for built-in function `strlen'
/linux/kwdb64/linux/include/linux/string.h:61: warning: conflicting types for built-in function `memset'
/linux/kwdb64/linux/include/linux/string.h:64: warning: conflicting types for built-in function `memcpy'
/linux/kwdb64/linux/include/linux/string.h:73: warning: conflicting types for built-in function `memcmp'

Could this be related to or shed light on the problem bdale had?

thanks,
grant


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From: "Brian S. Julin" <bri@mojo.calyx.net>
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On Sun, 5 Nov 2000, Grant Grundler wrote:
> When linux/arch/parisc/kernel/pci.c built, I get the following
> warnings:
> /linux/kwdb64/linux/include/linux/string.h:54: warning: conflicting types for built-in function `strlen'
> /linux/kwdb64/linux/include/linux/string.h:61: warning: conflicting types for built-in function `memset'
> /linux/kwdb64/linux/include/linux/string.h:64: warning: conflicting types for built-in function `memcpy'
> /linux/kwdb64/linux/include/linux/string.h:73: warning: conflicting types for built-in function `memcmp'

For some reason I had numerous problems with string.h not being included
when building ncurses natively with the nfsroot tarball.  (Also the 
nfsroot tarball seems to not be able to find the crt* objects by default)

--
Brian S. Julin



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Cary Coutant <cary@cup.hp.com> writes:

> This document covers both 32-bit and 64-bit programs, but notes that ELF 
> files are supported on HP-UX only for 64-bit programs. Nevertheless, a 
> complete set of 32-bit relocations is listed in the document (and, yes, 
> some 32-bit relocations have the same number and meaning, but different 
> names, as 64-bit relocations).

But this is a problem.  We might have to change the names then.  One
of the essential things about ELF is that it must be possible to have
support for all kind of architectures in one program.  So all the
definitions have to be able to peacefully coexist in one header file.

-- 
---------------.      drepper at gnu.org  ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Cygnus Solutions `--' drepper at cygnus.com   `------------------------


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"xam@deathsdoor.com" wrote:
> 
> the kernel boots actually, but i dumps the stack register and the
> processor registers (not included in this mail) after
> 
> ASP version 1 at ..... found

Grant Grundler wrote:
> Sounds like ASP support may be broken.
> The way to find out where IOAQ and GR2 registers are pointing.
> They should point to functions in System.map.
> Who is maintaining ASP support?

No, the parallel port support for ASP is broken.  If you disable the
LASI/ASP builtin parallel-port support (CONFIG_PARPORT_GSC) you will get
further.  I can't guarantee you will succeed, but others have reported
some success on boxes almost that old.

This is at least the second time this question has come up, so I guess
I'll add it to the FAQ and todo lists.

John Marvin
jsm@fc.hp.com


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Subject: [parisc-linux] A browser and a new URL for the ESIEE team web site
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Hi all,

    We have succeded to compile Lynx on a 712 and it works well.

    Also this short mail must tell you that our website can be reached with
http://www.esiee.fr/puffin
You can find a cool root FS which has the terminfo directory like that you
won't have the "vt100:unknown term" message, the network support and lot of
thing like that...

Bye, ESIEE Team

Don't hesitate to visit our website


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From: Kailashnath V Rampure <kailasr@webcash.com>
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Subject: Re: [parisc-linux] Boot command
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Hi,
Thanks. I copied the termcap and terminfo directory froma red hat linux 
box. Now I am able to run VI and the TERM is vt100.

Regards
Kailas

At 02:56 PM 11/5/00 +0100, Thierry SIMONNET wrote:
>To have a suitable TERM, you must get termcap or terminfo definition; ie a
>good terminfo tree from a linux box. To have a good method to install a
>pa/linux box, see my student's web site at http://www.esiee.fr/~djoudim
>
>Th. SIMONNET
>
>
>Kailashnath V Rampure wrote:
>
> > Thanks!  Paul.
> > Yes I had copied the lifImage there. Now I have downloaded the kernel from
> > the link you mentioned.
> >
> > I am still unable to use vi as it says "linux:unknown terminal type"
> > Can you help me.
> >
> > To add features can I add deb packages. I am not that familiar with debian.
> > Actually I want to build an apache + mod_ssl+mod_perl on A180c.
> > Regards
> > Kailas
> >
> > At 01:30 PM 11/3/00 -0700, Paul Bame wrote:
> > >= ext2_open(/boot/vmlinux)=3
> > >= Couldn't gork your kernel executabel format failed to load kernel
> > >= Failed to load Kernel.
> > >
> > >That should be "grok" :-)  Apparently you're not using cut/paste for
> > >these error messages.
> > >
> > >This is PALO saying that /boot/vmlinux is neither elf32, elf64, nor SOM
> > >format.  I'm guessing, based on some earlier advice I gave when you
> > >were net-booting, that you may have a lifimage there by mistake -- you
> > >need a kernel instead, for example from
> > >ftp://puffin.external.hp.com/pub/parisc/binaries/kernels
> > >
> > >To tell for sure, run 'file vmlinux' on that file.  If you get
> > >     vmlinux: 8086 relocatable (Microsoft)
> > >that's probably a lifimage.  You should get this instead:
> > >     vmlinux: ELF 32-bit MSB executable, PA-RISC, version 1, statically
> > > linked, not stripped
> > >
> > >
> > >         -P
> >
> > ---------------------------------------------------------------------------
> > To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> > `unsubscribe' as the subject.


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Subject: [parisc-linux] 64-bit BUILD CHANGES
Date: Tue, 07 Nov 2000 11:15:50 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:8335


The described changes have just been committed to CVS.  If you have
an existing configured/built 64-bit parisc tree right now I think these
are the steps to update:

	Save your .config file
	do 'make distclean'
	do your cvs update
	restore your .config
	make oldconfig dep
	and then proceed as normal

	The symlinks come when you do a make {old}config and
	go with a 'make distclean' FYI

>>> You may want to start hand-editing .hdepend (following each make dep)
to remove the dependency of atomic.h on spinlock.h (just remove the first
line containing the string spinlock.h) -- it can cause massive
unnecessary rebuilds.  It's due to a parisc-specific circular dependency  :-(

		-P

= I want to propose/discuss a new method for maintaining our 64-bit parisc
= tree in relation to the 32-bit tree.  I have prototyped this and so
= far it seems pretty useful.
= 
= Most of the files in the current parisc64 tree only contain one 
= line, a #include of the same file from the parisc tree.  This confuses
= 'make dep', causes some compile errors to have nonsense line numbers,
= and doesn't allow direct editing of the source files in the parisc64 tree.
= 
= The method I'm proposing works like this:
= 
= The future parisc64 tree ONLY contains files which are different from,
= or in addition to, those in the parisc tree.  When you 'make config'
= or 'make oldconfig', each file in the parsic tree is symbolically
= linked as the same file in the parisc64 tree.  This enables all
= the rest of the tools/build to work normally.  'make distclean' includes
= a step to remove all the symlinks.
= 
= The ugliest "feature" is that even though you can edit source files
= in the parisc64 tree, 'cvs commit' will fail on those which are
= symbolic links.  To reduce this problem, I'm dropping a symbolic link
= called '...' in each parisc64 directory which is a pointer to the
= corresponding parisc directory, so 'cd ...; cvs commit foo.c' will
= work and not be too onerous.
= 
= We should additionally consider a naming convention or something so
= that maintainers in the parisc tree know whether files are shared with
= parisc64 or not.
= 
= I prototyped this as a fictional new "architecture" called "p64".  To
= try it out, grab the tarball (only about 30 files -- can be fewer)
= ftp://puffin.external.hp.com/pub/parisc/
= and unpack in your top-level linux source tree directory.  Then in
= your top-level Makefile, change ARCH := parisc64 to ARCH := p64, then
= make oldconfig or whatever you usually do.  Let me know of any problems.
= 
= Is this something we should adopt for the real parisc64 tree?
= 
= 	-Paul Bame
= 
= ---------------------------------------------------------------------------
= To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
= `unsubscribe' as the subject.
= 
= 
= 


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Boot command
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Kailashnath V Rampure wrote:
> Hi,
> Thanks. I copied the termcap and terminfo directory froma red hat linux 
> box. Now I am able to run VI and the TERM is vt100.

I've added a "vi is complaining" item to the FAQ.

Normally the FAQ lives at 
	http://www.thepuffingroup.com/parisc/faq.html

but it's not updated yet. I've put a temporary copy at

	http://puffin.external.hp.com/~grundler/faq.html

and will remove this once the regular location is updated.
(Hint - relative links won't work from my copy)

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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----- Original Message -----
From: Grant Grundler <grundler@cup.hp.com>
To: Kailashnath V Rampure <kailasr@webcash.com>
Cc: <parisc-linux@thepuffingroup.com>
Sent: Tuesday, November 07, 2000 8:19 PM
Subject: Re: [parisc-linux] Boot command


> Kailashnath V Rampure wrote:
> > Hi,
> > Thanks. I copied the termcap and terminfo directory froma red hat linux
> > box. Now I am able to run VI and the TERM is vt100.
>
> I've added a "vi is complaining" item to the FAQ.
To use vi and all these applications like top, they need the terminfo
directory in /usr/share from any distrib!!

Bye, the ESIEE Team


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Xref: news.gmane.org gmane.linux.ports.parisc:8338

"Thomas Marteau" wrote:
> Grant Grundler wrote:
> > Kailashnat V Rampure wrote:
> > > Hi,
> > > Thanks. I copied the termcap and terminfo directory froma red hat linux
> > > box. Now I am able to run VI and the TERM is vt100.
> >
> > I've added a "vi is complaining" item to the FAQ.
>
> To use vi and all these applications like top, they need the terminfo
> directory in /usr/share from any distrib!!

I didn't say taking from RH was wrong.
IMHO, doing so defeats the whole point of debian's packaging system.

Please read the new FAQ entry and tell me if I've gotten
that right or not.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Kailashnath V Rampure <kailasr@webcash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot command
Date: Tue, 07 Nov 2000 14:50:10 -0800
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Xref: news.gmane.org gmane.linux.ports.parisc:8339

I agree with you regarding taking from RH. I just wanted to let u all know 
how I solved the issue. I have gone through the faq it is fine.

Regards
Kailas

At 12:24 PM 11/7/00 -0800, Grant Grundler wrote:
>"Thomas Marteau" wrote:
> > Grant Grundler wrote:
> > > Kailashnat V Rampure wrote:
> > > > Hi,
> > > > Thanks. I copied the termcap and terminfo directory froma red hat linux
> > > > box. Now I am able to run VI and the TERM is vt100.
> > >
> > > I've added a "vi is complaining" item to the FAQ.
> >
> > To use vi and all these applications like top, they need the terminfo
> > directory in /usr/share from any distrib!!
>
>I didn't say taking from RH was wrong.
>IMHO, doing so defeats the whole point of debian's packaging system.
>
>Please read the new FAQ entry and tell me if I've gotten
>that right or not.
>
>grant
>
>Grant Grundler
>Unix Systems Enablement Lab
>+1.408.447.7253
>
>---------------------------------------------------------------------------
>To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.


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From: Christian Knoch <cjknoch@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP 9000 e25
Date: Tue, 7 Nov 2000 15:40:14 -0800 (PST)
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hi. 
i need information about how to install linux on hp
9000 e25
what version on linux
what distribution ?
how many memoty i need in this machine
how many space on disk i need in this machine
howto boot machine for install linux


Thanks


__________________________________________________
Do You Yahoo!?
Thousands of Stores.  Millions of Products.  All in one Place.
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Subject: Re: [parisc-linux] HP 9000 e25
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On Tue, Nov 07, 2000 at 03:40:14PM -0800, Christian Knoch wrote:
> hi. 
> i need information about how to install linux on hp
> 9000 e25

*sigh*.  This is in the FAQ.  Where do we need to put links to the FAQ
to persuade people to read it?  Where did you find this mailing list
address, do we need to put a link to the FAQ there?

The answer given in the FAQ is:

The earliest PA-RISC servers have proprietary HP devices attached to
proprietary HP bus architectures. It is unlikely that documentation
on these busses and devices will ever become available, since so few
people are interested in spending any effort finding and releasing the
docs. Machines in this category are the E, F, G, H, I class (aka Nova)
and T500 series (Emerald) machines as well as some earlier, unlettered
servers.


-- 
Revolutions do not require corporate support.


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From: Cary Coutant <cary@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel updates.
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>But this is a problem.  We might have to change the names then.  One
>of the essential things about ELF is that it must be possible to have
>support for all kind of architectures in one program.  So all the
>definitions have to be able to peacefully coexist in one header file.

I don't believe there are any cases where the same name conflicts with 
two different numbers. We have cases where two names are used to refer to 
what is essentially the same relocation type, but that shouldn't be a 
conflict.

-cary


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since the lord god alex hasn't seen fit to inform anyone, it seems like
i should.  the www.thepuffingroup.com website is no longer being updated
and all the updates are only going to parisc-linux.org.  i have been
updating www.thepuffingroup.com becuase no-one told me that this site
was no longer supposed to be operational and i suspect a large number
of people who subscribe to this list still have it bookmarked.  also,
email sent to willy@thepuffingroup.com is no longer being received by me.
i don't know who gets it, but the sender does not receive a bounce.

yours, fucking furious, Matthew.

-- 
"It's time for you to change your sig" -- Alex deVries


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Matthew Wilcox wrote:
> 
> since the lord god alex hasn't seen fit to inform anyone, it seems like
> i should.  the www.thepuffingroup.com website is no longer being updated
> and all the updates are only going to parisc-linux.org.

We gave LXC's website maintainer grief about this already.

> i have been
> updating www.thepuffingroup.comwww.thepuffingroup.com becuase no-one told me that this site
> was no longer supposed to be operational and i suspect a large number
> of people who subscribe to this list still have it bookmarked.

Some time today, I expect (hope?) www.thepuffingroup.com/parisc will be
redirected to www.parisc-linux.org (.com works too).
I've asked mail be sent to this list when it happens.

> also,
> email sent to willy@thepuffingroup.com is no longer being received by me.
> i don't know who gets it, but the sender does not receive a bounce.

This should probably bounce since it's been stale for about
11 monthes now...

hope this helps,
grant

ps. just trying to compensate for an otherwise lack of communication.

> 
> yours, fucking furious, Matthew.
> 
> -- 
> "It's time for you to change your sig" -- Alex deVries
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Matthew Wilcox said:
> the www.thepuffingroup.com website is no longer being updated and all
> the updates are only going to parisc-linux.org.

I don't know if there's some other secret mailing list I'm missing out
on, but that's the first time I've heard of "parisc-linux.org" I'm sure.
So thankyou for being the one to bring it up.

Will the mailing list be moving as well?  (Given that it belongs with
the project, not the mothballed puffingroup website.)

> -- 
> "It's time for you to change your sig" -- Alex deVries

Shame, I thought your old sig was funnier.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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Subject: Re: [parisc-linux] webshite
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Xref: news.gmane.org gmane.linux.ports.parisc:8346


Andrew Shugg writes...

> I don't know if there's some other secret mailing list I'm missing out
> on, but that's the first time I've heard of "parisc-linux.org" I'm sure.
> So thankyou for being the one to bring it up.

It was never officially announced, just setup. I guess this is the 
announcement.

> Will the mailing list be moving as well?  (Given that it belongs with
> the project, not the mothballed puffingroup website.)

Yes, most of the project's web/mail resources will be moving there shortly. Go 
ahead and update your bookmarks. I've been told there will be a 
pointer/redirect from the old site but I wouldn't count on it existing forever.

-- 
Matt Taggart
taggart@fc.hp.com



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From: Andrew Shugg <andrew@neep.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 9000 e25
Date: Thu, 9 Nov 2000 05:48:06 +0800
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Xref: news.gmane.org gmane.linux.ports.parisc:8347

Matthew Wilcox said:
> On Tue, Nov 07, 2000 at 03:40:14PM -0800, Christian Knoch wrote:
> > hi. 
> > i need information about how to install linux on hp
> > 9000 e25
> 
> *sigh*.  This is in the FAQ.  Where do we need to put links to the FAQ
> to persuade people to read it?  Where did you find this mailing list
> address, do we need to put a link to the FAQ there?

I think the fault lies in the "Contact" page, new (!) URL being:

	http://parisc-linux.org/contact.html

"Most questions about the port should be addressed to the developer
mailing list parisc-linux@thepuffingroup.com"

I would suggest this page be changed a bit, like stick the mailing list
down the bottom and change it to a link to the mailing list subscribe
and browse-the-archives page, rather than simply the address of the
list.  Also a comment about reading the FAQ.  Yes, the FAQ is in the
left-hand side-bar but you can never over-do the help.  =)

One of my favourite comments along that line was on the windowmaker.org
home page (sadly it has been removed).  It was something like "Please
bear in mind that asking questions on the mailing list that are answered
in the FAQ is NOT A GOOD IDEA."  <grin>

The FAQ on parisc-linux.org is also missing the all-important Q/A pair:

Q. I have a question that isn't answered in this FAQ?
A. Please subscribe to the [mailing list] and ask.  Politely.  Preferably
   in English, or (failing that) in a recognisable pidgin.  Don't hold back
   on the relevant information either.  "It won't boot" is not good.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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From: Jane Vinet <jvinet@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 9000 e25
Date: Wed, 08 Nov 2000 17:41:50 -0500
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Cc: parisc-linux@thepuffingroup.com, jcook@linuxcare.com
To: Andrew Shugg <andrew@neep.com.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:8348

Good advice...will notify the web design folks.

Jane
-- 
jvinet@linuxcare.com


Andrew Shugg wrote:

> I would suggest this page be changed a bit, like stick the mailing list
> down the bottom and change it to a link to the mailing list subscribe
> and browse-the-archives page, rather than simply the address of the
> list.  Also a comment about reading the FAQ.  Yes, the FAQ is in the
> left-hand side-bar but you can never over-do the help.  =)
> 
> One of my favourite comments along that line was on the windowmaker.org
> home page (sadly it has been removed).  It was something like "Please
> bear in mind that asking questions on the mailing list that are answered
> in the FAQ is NOT A GOOD IDEA."  <grin>
> 
> The FAQ on parisc-linux.org is also missing the all-important Q/A pair:
> 
> Q. I have a question that isn't answered in this FAQ?
> A. Please subscribe to the [mailing list] and ask.  Politely.  Preferably
>    in English, or (failing that) in a recognisable pidgin.  Don't hold back
>    on the relevant information either.  "It won't boot" is not good.
> 
> Andrew.
> 
> --
> Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/
> 
> "Just remember, Mr Fawlty, there's always someone worse off than yourself."
> "Is there?  Well I'd like to meet him.  I could do with a good laugh."
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] webshite
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On Thu, Nov 09, 2000 at 05:13:23AM +0800, Andrew Shugg wrote:
> Matthew Wilcox said:
> > the www.thepuffingroup.com website is no longer being updated and all
> > the updates are only going to parisc-linux.org.
> 
> I don't know if there's some other secret mailing list I'm missing out
> on, but that's the first time I've heard of "parisc-linux.org" I'm sure.
> So thankyou for being the one to bring it up.

oh, alex secretly went off and registered it.  the first we heard about
it was in a press release a couple of months ago.  for a while it's
been a (broken) redirect to www.thepuffingroup.com/parisc.  there's a
linuxcare internal mailing list for discussions of the parisc project,
but it wasn't mentioned on there either.

> Will the mailing list be moving as well?  (Given that it belongs with
> the project, not the mothballed puffingroup website.)

no idea.  alex is playing politics and he's not very good at it.
personally, i think everything should be moved to puffin.external.hp.com
and parisc-linux.org should just redirect to it, but that wouldn't fit
with the aforementioned political games.

> > -- 
> > "It's time for you to change your sig" -- Alex deVries
> 
> Shame, I thought your old sig was funnier.

oh, i just thought that was a more appropriate sig for the circumstances,
I haven't changed permanently.

-- 
Revolutions do not require corporate support.


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] webshite
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To: Grant Grundler <grundler@cup.hp.com>
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On Wed, Nov 08, 2000 at 12:31:11PM -0800, Grant Grundler wrote:
> Matthew Wilcox wrote:
> > also,
> > email sent to willy@thepuffingroup.com is no longer being received by me.
> > i don't know who gets it, but the sender does not receive a bounce.
> 
> This should probably bounce since it's been stale for about
> 11 monthes now...

um, it was my email address until about 3 months ago.  at least one person
still had that as their preferred email address for me.  if anyone else
does, they should probably change it.  it's the lack of bounce which
concerns me, which implies that someone's receiving it, reading mail
destined for me and not forwarding it on.

-- 
Revolutions do not require corporate support.


From - Thu Nov 08 21:13:59 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: testcase for hppa64 gcc bug
Date: Thu, 9 Nov 2000 12:39:57 -0500 (EST)
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Cc: alan@linuxcare.com.au, gcc-bugs@gcc.gnu.org, gcc-patches@gcc.gnu.org,
        parisc-linux@thepuffingroup.com, law@cygnus.com
To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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In-Reply-To: <no.id> from "John David Anglin" at Nov 3, 2000 03:01:17 pm
X-Mailer: ELM [version 2.4 PL25]
Xref: news.gmane.org gmane.linux.ports.parisc:8351

> > So I went down the path of trying to fix things properly by defining
> > ELIMINABLE_REGS and so on, but I ended in a maze of twisty little passages
> > labelled "Unrecognizable instruction", like this one:
> > 
> > /src/parisc/gcc/gcc/libgcc2.c: In function `__moddi3':
> > /src/parisc/gcc/gcc/libgcc2.c:601: Unrecognizable insn:
> > (insn 1289 209 1298 (set (reg:SI 50 %fr22)
> >         (subreg:SI (plus:DI (reg:DI 30 %r30)
> >                 (const_int -272 [0xfffffef0])) 0)) -1 (nil)
> >     (nil))
> > /src/parisc/gcc/gcc/libgcc2.c:601: Internal compiler error in
> > extract_insn, at recog.c:2134
> 
> I am making progress in trying to make the arg_pointer register eliminable.
> I have fixed the above problem.  What was happening was that reload_as_needed
> was incorrectly trying to eliminate the return from millicode calls which
> is also register r29.  I have figured out how to hide it from reload with
> unspec.
> 
> However, the compiler is now too good at eliminating the arg_pointer.  At
> -O3, it completely eliminates the arg_pointer.  However, as I read the ABI,
> the call must always set the arg_pointer before calls.

For the record, here is my final patch regarding making the arg_pointer
eliminable for TARGET_64BIT.  I think the code it generates is correct but
it hasn't been extensively tested.  However, I don't recommend it for
installation since in comparing the assembler code generated with and
without elimination for a couple of test cases, I didn't observe any
significant improvement in the code with the patch.  Possibly, the patch
implicitly disables elimination when the arg_pointer is needed.

I do find that Alan Modra's ARG_POINTER_INVARIANT patch needs to be installed
to get correct code with his test case.

There is one part of the patch below which I think needs to be installed.
That is

	(call, call_value): Always USE the arg_pointer for TARGET_64BIT.

The use for the arg_pointer needs to be pulled out of the `if (flag_pic)'.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2000-11-07  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa-linux64.h (ARG_POINTER_INVARIANT): Define even when the
	arg_pointer is being eliminated.
	(ELIMINABLE_REGS): Enable elimination of the arg_pointer.
	(INITIAL_ELIMINATION_OFFSET): Revise offsets for arg_pointer.
	* pa.md (mulsi3, divsi3, udivsi3, modsi3, umodsi3 and
	canonicalize_funcptr_for_compare): Put "(reg:SI 26)" inside
	unspec to prevent elimination.
	(call, call_value): Always USE the arg_pointer for TARGET_64BIT.
	Use the new addmovdi3 insn to load the arg_pointer register.
	(addmovdi3 and mov_from_r29_si): New insn and expand which prevent
	r29 from being eliminated in call setups and millicode returns.

--- pa-linux64.h.orig	Tue Oct 31 18:38:24 2000
+++ pa-linux64.h	Tue Nov  7 12:17:12 2000
@@ -209,21 +209,18 @@
    that grow to lower addresses.  What fun.  */
 #undef ARGS_GROW_DOWNWARD
 #undef ARG_POINTER_REGNUM
-#define ARG_POINTER_INVARIANT 0
 #define ARG_POINTER_REGNUM 29
+#define ARG_POINTER_INVARIANT 0
 #undef STATIC_CHAIN_REGNUM
 #define STATIC_CHAIN_REGNUM 31
 
-#if 1
-#define ARG_POINTER_INVARIANT 0
-#else
-/* If defined, this macro specifies a table of register pairs used to eliminate
-   unneeded registers that point into the stack frame.  */
+/* If defined, this macro specifies a table of register pairs used to
+   eliminate unneeded registers that point into the stack frame.  */
 
 #define ELIMINABLE_REGS							\
 {									\
-  {ARG_POINTER_REGNUM,	 STACK_POINTER_REGNUM},				\
   {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM},				\
+  {ARG_POINTER_REGNUM,	 STACK_POINTER_REGNUM},				\
   {ARG_POINTER_REGNUM,	 FRAME_POINTER_REGNUM},				\
 }
 
@@ -240,19 +237,18 @@
 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
   do								\
     {								\
-      int fsize;						\
+      int fsize = compute_frame_size (get_frame_size (), 0);	\
 								\
       if ((TO) == FRAME_POINTER_REGNUM				\
 	  && (FROM) == ARG_POINTER_REGNUM)			\
 	{							\
-	  (OFFSET) = - current_function_pretend_args_size - 16;	\
+	  (OFFSET) = fsize + 48 - current_function_outgoing_args_size;	\
 	  break;						\
 	}							\
 								\
       if ((TO) != STACK_POINTER_REGNUM)				\
 	abort ();						\
 								\
-      fsize = compute_frame_size (get_frame_size (), 0);	\
       switch (FROM)						\
 	{							\
 	case FRAME_POINTER_REGNUM:				\
@@ -260,14 +256,13 @@
 	  break;						\
 								\
 	case ARG_POINTER_REGNUM:				\
-	  (OFFSET) = - fsize - current_function_pretend_args_size - 16;	\
+	  (OFFSET) = 48 - current_function_outgoing_args_size;  \
 	  break;						\
 								\
 	default:						\
 	  abort ();						\
 	}							\
     } while (0)
-#endif
 
 #undef SELECT_RTX_SECTION
 #define SELECT_RTX_SECTION(MODE,RTX)	\
--- pa.md.orig	Tue Nov  7 13:50:34 2000
+++ pa.md.work	Wed Nov  8 14:06:05 2000
@@ -3993,7 +3993,7 @@
 	      (clobber (reg:SI 26))
 	      (clobber (reg:SI 25))
 	      (clobber (reg:SI 31))])
-   (set (match_operand:SI 0 "general_operand" "") (reg:SI 29))]
+   (set (match_operand:SI 0 "general_operand" "") (unspec:SI [(reg:SI 29)] 0))]
   ""
   "
 {
@@ -4139,7 +4139,7 @@
 	      (clobber (reg:SI 26))
 	      (clobber (reg:SI 25))
 	      (clobber (reg:SI 31))])
-   (set (match_operand:SI 0 "general_operand" "") (reg:SI 29))]
+   (set (match_operand:SI 0 "general_operand" "") (unspec:SI [(reg:SI 29)] 0))]
   ""
   "
 {
@@ -4197,7 +4197,7 @@
 	      (clobber (reg:SI 26))
 	      (clobber (reg:SI 25))
 	      (clobber (reg:SI 31))])
-   (set (match_operand:SI 0 "general_operand" "") (reg:SI 29))]
+   (set (match_operand:SI 0 "general_operand" "") (unspec:SI [(reg:SI 29)] 0))]
   ""
   "
 {
@@ -4255,7 +4255,7 @@
 	      (clobber (reg:SI 26))
 	      (clobber (reg:SI 25))
 	      (clobber (reg:SI 31))])
-   (set (match_operand:SI 0 "general_operand" "") (reg:SI 29))]
+   (set (match_operand:SI 0 "general_operand" "") (unspec:SI [(reg:SI 29)] 0))]
   ""
   "
 {
@@ -4310,7 +4310,7 @@
 	      (clobber (reg:SI 26))
 	      (clobber (reg:SI 25))
 	      (clobber (reg:SI 31))])
-   (set (match_operand:SI 0 "general_operand" "") (reg:SI 29))]
+   (set (match_operand:SI 0 "general_operand" "") (unspec:SI [(reg:SI 29)] 0))]
   ""
   "
 {
@@ -5785,9 +5785,9 @@
     op = XEXP (operands[0], 0);
 
   if (TARGET_64BIT)
-    emit_move_insn (arg_pointer_rtx,
-		    gen_rtx_PLUS (word_mode, virtual_outgoing_args_rtx,
-				  GEN_INT (64)));
+    emit_insn (gen_addmovdi3 (arg_pointer_rtx,
+			      virtual_outgoing_args_rtx,
+			      GEN_INT (64)));
 
   /* Use two different patterns for calls to explicitly named functions
      and calls through function pointers.  This is necessary as these two
@@ -5809,13 +5809,14 @@
       call_insn = emit_call_insn (gen_call_internal_reg (operands[1]));
     }
 
+  if (TARGET_64BIT)
+    use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_rtx);
+
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
 	       gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
-      if (TARGET_64BIT)
-	use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_rtx);
 
       /* After each call we must restore the PIC register, even if it
 	 doesn't appear to be used.
@@ -5961,9 +5962,9 @@
     op = XEXP (operands[1], 0);
 
   if (TARGET_64BIT)
-    emit_move_insn (arg_pointer_rtx,
-		    gen_rtx_PLUS (word_mode, virtual_outgoing_args_rtx,
-				  GEN_INT (64)));
+    emit_insn (gen_addmovdi3 (arg_pointer_rtx,
+			      virtual_outgoing_args_rtx,
+			      GEN_INT (64)));
 
   /* Use two different patterns for calls to explicitly named functions
      and calls through function pointers.  This is necessary as these two
@@ -5989,6 +5990,10 @@
       call_insn = emit_call_insn (gen_call_value_internal_reg (operands[0],
 							       operands[2]));
     }
+
+  if (TARGET_64BIT)
+    use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_rtx);
+
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
@@ -7124,7 +7129,7 @@
 	      (clobber (reg:SI 22))
 	      (clobber (reg:SI 31))])
    (set (match_operand:SI 0 "register_operand" "")
-	(reg:SI 29))]
+	(unspec:SI [(reg:SI 29)] 0))]
   "! TARGET_PORTABLE_RUNTIME && !TARGET_64BIT && !TARGET_ELF32"
   "
 {
@@ -7236,3 +7241,48 @@
   emit_insn (gen_blockage ());
   DONE;
 }")
+
+;; For TARGET_64BIT, the arg_pointer register is also used for millicode
+;; returns.  The ABI requires that the arg_pointer be set for all calls.
+;; When the arg_pointer is made an eliminable register, eliminate_regs
+;; will eliminate the arg_pointer register from the function call setup and
+;; millicode returns unless the arg_pointer is hidden in a use, clobber or
+;; unspec.
+
+;; This is for loading the arg_pointer in function calls.
+(define_insn "addmovdi3"
+  [(set (unspec:DI [(match_operand:DI 0 "register_operand" "=r,r")] 0)
+        (plus:DI (match_operand:DI 1 "register_operand" "r,r")
+		 (match_operand 2 "const_int_operand" "J,i")))
+   (set (match_dup 0) (match_dup 0))]
+  "TARGET_64BIT"
+  "@
+  ldo %2(%1),%0
+  ldil L'%G2,%0\;add,l %0,%1,%0"
+  [(set_attr "type" "binary,binary")
+   (set_attr "pa_combine_type" "addmove,none")
+   (set_attr "length" "4,8")])
+
+;; This is for millicode return.
+(define_expand "mov_from_r29_si"
+  [(set (match_operand:SI 0 "" "")
+        (unspec:SI [(reg:SI 29)] 0))]
+  ""
+  "
+{
+  if (!TARGET_64BIT)
+    {
+      rtx tmp = gen_rtx_REG (SImode, 29);
+      emit_insn (gen_movsi (operands[0], tmp));
+      DONE;
+    }
+}")
+
+(define_insn ""
+  [(set (match_operand:SI 0 "register_operand" "=r")
+	(unspec:SI [(reg:SI 29)] 0))]
+  ""
+  "copy %%r29,%0"
+  [(set_attr "type" "multi")
+   (set_attr "length" "4")])
+


From - Thu Nov 08 21:14:00 2018
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From: Paul Bame <bame@noam.fc.hp.com>
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Subject: [parisc-linux] kernel merge
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We're getting ready to do a kernel merge (to -test10 I think).  Anybody
concerns before we get started?

	-P


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From: Alex deVries <adevries@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel updates.
Date: Mon, 19 Apr 1999 17:41:51 -0400 (EDT)
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Cc: Ulrich Drepper <drepper@cygnus.com>, parisc-linux@thepuffingroup.com
To: Cary Coutant <cary@cup.hp.com>
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On Mon, 19 Apr 1999, Cary Coutant wrote:
> 
> The latest ELF supplement for PA-RISC is Version 1.5, dated August 20, 
> 1998. I'll send it separately to you, Alex, and you can post it on your 
> web page (easier than getting HP's external web server updated). 

Oh, excellent, I hadn't known that those existed.

I've placed those at:
http://puffin.external.hp.com/docs/elf-64-gen.pdf 

and:
http://puffin.external.hp.com/docs/elf-pa-hp.pdf 

I'll include these references on the documentation pages as soon as
possible.


> The document also doesn't contain either Elf-32 or Elf-64 structure 
> definitions. I have a separate document that describes Elf-64, but we 
> defer to outside documentation for the Elf-32 format (e.g., the SVR4 gABI 
> document).

Could someone provide me with a reference to the SVR4 gABI document?

Thanks for your help, Cary.

- Alex


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From: Jane Vinet <jvinet@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Website Plan
Date: Thu, 09 Nov 2000 14:08:20 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:8354

Recently there have been concerns about what is happening with the
web site. 
I'd like to let everyone know what the plan is in order to address these 
concerns.  

The Development team at HP provided us with a list of where current
pages are hosted and where they should be hosted in the future.

 Item                        current       future
----                        -------       ------
mailing lists               pehc           LXC
parisc website		    puffin         LXC
hardware database           puffin        pehc
ftp server                  pehc          pehc
cvs                         pehc          pehc


As per Linuxcare's agreement with Hewlett Packard, Linuxcare (formerly
the Puffing Group) is responsible for all of the pages that are
currently hosted at http://www.thepuffingroup.com/parisc/.  Linuxcare is
in the process of redesigning the existing web pages and we will be
moving very soon to http://www.parisc-linux.org/.  By revamping the
existing web pages, we want to make things like the FAQ page and the
To-Do list much more visible to the public to encourage new contributors
to join us,
as well as meeting the needs of current Developers.

The plan is to transition from the current website to the new
website with as little disruption to the public as possible.  Currently,
http://www.parisc-linux.org/ is set up but not active. 
http://www.thepuffingroup.com/parisc/ will remain the active site until
everything is ready to switch over. 

Each of the above items is being addressed independently and have
separate schedules for transition.  We will make sure that notification
is made on http://www.thepuffingroup.com/parisc/ and on the mailing list
prior to the transition.

Thanks for your patience and we apologize for any inconvenience this may
have caused. 

Jane
-- 
Jane Vinet, Director Professional Services/Canadian Operations
Linuxcare, Inc. 613.562.9260 (tel), 613.562.9700 fax
jvinet@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the Revolution


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] abort in eliminate_regs compiling glob.c from glibc
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Xref: news.gmane.org gmane.linux.ports.parisc:8355

The following abort occurs with a relatively current version of gcc from
the cvs under hpux and the parisc-linux version of the compiler:

hppa-linux-gcc ../sysdeps/generic/glob.c -c -O3 -Wall -Winline -Wstrict-prototypes -Wwrite-strings      -I../include -I. -I/home/dave/puffin/glibc/objdir/posix -I.. -I../libio  -I/home/dave/puffin/glibc/objdir -I../sysdeps/hppa/elf -I../linuxthreads/sysdeps/unix/sysv/linux/hppa -I../linuxthreads/sysdeps/unix/sysv/linux -I../linuxthreads/sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv -I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/hppa -I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/ldbl-128
  -I../sysdeps/hppa/fpu -I../sysdeps/hppa -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic  -nostdinc -isystem /usr/local/puffin/lib/gcc-lib/hppa-linux/2.96/include -isystem !
/home/dave/puffin/linux/include -D_LIBC_REENTRANT -include ../include/libc-symbols.h     -o /home/dave/puffin/glibc/objdir/posix/glob.o
../sysdeps/generic/glob.c: In function `glob_in_dir':
../sysdeps/generic/glob.c:1446: Internal compiler error in , at reload1.c:2516
   Please submit a full bug report.
   See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[2]: *** [/home/dave/puffin/glibc/objdir/posix/glob.o] Error 1
make[2]: Leaving directory `/home/dave/puffin/glibc/posix'
make[1]: *** [posix/subdir_lib] Error 2
make[1]: Leaving directory `/home/dave/puffin/glibc'
make: *** [all] Error 2

The insn that causes the fault is the following:

Breakpoint 2, eliminate_regs_in_insn (insn=0x406a0ba0, replace=0)
    at ../../gcc/reload1.c:2826
2826      if (! insn_is_asm && icode < 0)
(gdb) p debug_rtx (insn)
(insn/s 2711 2709 2719 (set (reg:SI 6 %r6)
        (reg:SI 28 %r28)) 69 {pre_ldw-4} (insn_list 2708 (insn_list:REG_DEP_ANTI 2696 (insn_list:REG_DEP_ANTI 2702 (insn_list:REG_DEP_ANTI 2697 (nil)))))
    (expr_list:REG_DEAD (reg:SI 28 %r28)
        (insn_list:REG_RETVAL 2708 (expr_list:REG_EQUAL (expr_list (use (mem:BLK (scratch) 0))
                    (expr_list (symbol_ref/v:SI ("@strlen"))
                        (expr_list (reg/v:SI 4 %r4)
                            (nil))))
                (nil)))))

As can be seen, there is a use in the REG notes which will cause eliminate_regs
to abort if it is called to process the notes of this insn.  It is called
from this code which is near the end of eliminate_regs_in_insn:

  for (ep = reg_eliminate; ep < &reg_eliminate[NUM_ELIMINABLE_REGS]; ep++)
    {
      if (ep->previous_offset != ep->offset && ep->ref_outside_mem)
        ep->can_eliminate = 0;

      ep->ref_outside_mem = 0;

      if (ep->previous_offset != ep->offset)
	val = 1;
    }

 done:
  /* If we changed something, perform elimination in REG_NOTES.  This is
     needed even when REPLACE is zero because a REG_DEAD note might refer
     to a register that we eliminate and could cause a different number
     of spill registers to be needed in the final reload pass than in
     the pre-passes.  */
  if (val && REG_NOTES (insn) != 0)
    REG_NOTES (insn) = eliminate_regs (REG_NOTES (insn), 0, REG_NOTES (insn));

ep->previous_offset is not equal ep->offset here and thus val is 1.

The use would appear to arise from the rtl generated by expand_builtin_strlen.
Anybody got any thoughts on how to fix this.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


From - Thu Nov 08 21:14:00 2018
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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] tulip DMA mapping
Date: Thu, 9 Nov 2000 12:12:25 -0800 (PST)
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Xref: news.gmane.org gmane.linux.ports.parisc:8356

Hi all,
I see a "bug" in tulip's usage of mapping services.
It's not the bug I was looking for unfortunately.

In line 217 of drivers/net/tulip/interrupt.c:

	if (tp->tx_buffers[entry].mapping)
		pci_unmap_single(tp->pdev,
				tp->tx_buffers[entry].mapping,
				sizeof(tp->setup_frame),
				PCI_DMA_TODEVICE);

0 is a valid pci_map_single() return value when the system has an IO MMU.

The system will panic before pci_map_single() will fail.
The driver needs to remember some other way if a buffer was mapped or not.
Or the Documentation/DMA-mapping.txt should be changed - ie add this
to the interface definition and I can reserve the 1st mapping
entry so no-one uses it.

Should I be mailing Jeff Garzik <jgarzik@mandrakesoft.com> directly?
Or can someone who knows Jeff point this out to him?

thanks,
grant


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] strace working
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I have updated the strace source in our cvs, such that it now
builds a basically working binary.  It requires an up-to-date
kernel.

Outstanding issues:

a) ioctl defines in linux/hppa/ioctlent.h are probably wrong
b) there is a hack in defs.h to get round a problem where the
   libc wrapper for ptrace() isn't getting used
c) there is a struct user defined in defs.h that should probably
   be in the kernel source asm/user.h
d) there are probably more places where we need to add HPPA
   specific code

Richard


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: abort in eliminate_regs compiling glob.c from glibc
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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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In-Reply-To: <no.id> from "John David Anglin" at Nov 9, 2000 02:54:00 pm
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Xref: news.gmane.org gmane.linux.ports.parisc:8358

> Breakpoint 2, eliminate_regs_in_insn (insn=0x406a0ba0, replace=0)
>     at ../../gcc/reload1.c:2826
> 2826      if (! insn_is_asm && icode < 0)
> (gdb) p debug_rtx (insn)
> (insn/s 2711 2709 2719 (set (reg:SI 6 %r6)
>         (reg:SI 28 %r28)) 69 {pre_ldw-4} (insn_list 2708 (insn_list:REG_DEP_ANTI 2696 (insn_list:REG_DEP_ANTI 2702 (insn_list:REG_DEP_ANTI 2697 (nil)))))
>     (expr_list:REG_DEAD (reg:SI 28 %r28)
>         (insn_list:REG_RETVAL 2708 (expr_list:REG_EQUAL (expr_list (use (mem:BLK (scratch) 0))
>                     (expr_list (symbol_ref/v:SI ("@strlen"))
>                         (expr_list (reg/v:SI 4 %r4)
>                             (nil))))
>                 (nil)))))

The `use' arises from the `__pure__' attribute in the prototype for strlen:

extern size_t strlen (__const char *__s) __attribute__ ((__pure__));

Still haven't been able to figure out why the REG notes are processed or
a simple test case.  The cpp'd input is attached.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

begin 644 glob.i.gz
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`
end


From - Thu Nov 08 21:14:00 2018
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X-Mozilla-Keys:                                                                                 
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: abort in eliminate_regs compiling glob.c from glibc
Date: Fri, 10 Nov 2000 11:36:56 +1100 (EST)
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
Original-X-From: alan@linuxcare.com.au  Thu Nov  9 17:35:17 2000
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On Thu, 9 Nov 2000, John David Anglin wrote:

> > Breakpoint 2, eliminate_regs_in_insn (insn=0x406a0ba0, replace=0)
> >     at ../../gcc/reload1.c:2826
> > 2826      if (! insn_is_asm && icode < 0)
> > (gdb) p debug_rtx (insn)
> > (insn/s 2711 2709 2719 (set (reg:SI 6 %r6)
> >         (reg:SI 28 %r28)) 69 {pre_ldw-4} (insn_list 2708 (insn_list:REG_DEP_ANTI 2696 (insn_list:REG_DEP_ANTI 2702 (insn_list:REG_DEP_ANTI 2697 (nil)))))
> >     (expr_list:REG_DEAD (reg:SI 28 %r28)
> >         (insn_list:REG_RETVAL 2708 (expr_list:REG_EQUAL (expr_list (use (mem:BLK (scratch) 0))
> >                     (expr_list (symbol_ref/v:SI ("@strlen"))
> >                         (expr_list (reg/v:SI 4 %r4)
> >                             (nil))))
> >                 (nil)))))
> 
> The `use' arises from the `__pure__' attribute in the prototype for strlen:
> 
> extern size_t strlen (__const char *__s) __attribute__ ((__pure__));

I don't see this problem using current puffin CVS hppa64-linux gcc.  Was
this with your REG_ELIMINATE patch?

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


From - Thu Nov 08 21:14:00 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: abort in eliminate_regs compiling glob.c from glibc
Date: Thu, 9 Nov 2000 21:50:49 -0500 (EST)
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To: alan@linuxcare.com.au (Alan Modra)
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In-Reply-To: <Pine.LNX.4.21.0011101123290.1107-100000@front.linuxcare.com.au> from "Alan Modra" at Nov 10, 2000 11:36:56 am
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> > > 2826      if (! insn_is_asm && icode < 0)
> > > (gdb) p debug_rtx (insn)
> > > (insn/s 2711 2709 2719 (set (reg:SI 6 %r6)
> > >         (reg:SI 28 %r28)) 69 {pre_ldw-4} (insn_list 2708 (insn_list:REG_DEP_ANTI 2696 (insn_list:REG_DEP_ANTI 2702 (insn_list:REG_DEP_ANTI 2697 (nil)))))
> > >     (expr_list:REG_DEAD (reg:SI 28 %r28)
> > >         (insn_list:REG_RETVAL 2708 (expr_list:REG_EQUAL (expr_list (use (mem:BLK (scratch) 0))
> > >                     (expr_list (symbol_ref/v:SI ("@strlen"))
> > >                         (expr_list (reg/v:SI 4 %r4)
> > >                             (nil))))
> > >                 (nil)))))
> > 
> > The `use' arises from the `__pure__' attribute in the prototype for strlen:
> > 
> > extern size_t strlen (__const char *__s) __attribute__ ((__pure__));
> 
> I don't see this problem using current puffin CVS hppa64-linux gcc.  Was
> this with your REG_ELIMINATE patch?

No.  Well actually I saw it first with the patch.  I see this with the
32 bit compiler.  The only elimination with the 32 bit compiler is the
default frame pointer elimination.

I just tried the hppa64-linux-gcc compiler with the source that I posted
and it didn't abort.  There were lots of warnings about int to pointer
conversions though.

Make sure you compile with -O2 or -O3?  Register elimination only occurs
at -O2 or above.  I see the problem both with a i686-linux cross compiler
and a fairly recent native hpux compiler under hpux 10.20.  The problem is
not present in 2.95.2 but it doesn't support the pure atribute.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Thu, Nov 09, 2000 at 03:53:48PM -0700, Paul Bame wrote:
>     Somebody never imported 2.4.0-test6, then I imported -test10 on the main
>     vendor branch and now can't (easily) undo that to import test6 and THEN
>     test10.  This workaround sucks.

don't use vendor branches.  didn't you talk to mang about this?

-- 
Revolutions do not require corporate support.


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On Thu, Nov 09, 2000 at 12:12:25PM -0800, Grant Grundler wrote:
> 0 is a valid pci_map_single() return value when the system has an IO MMU.

Oh dear.  You can bet tulip won't be the only driver which assumes it
isn't a valid return value.  Can't our IOMMU code be limited in such a
way that 0 is not a valid return value?  Say, constrain all allocated
addresses to the top half of the device bus?

(um, just check me on this, map_single returns a device bus address,
not a processor bus address, right?)

> The system will panic before pci_map_single() will fail.
> The driver needs to remember some other way if a buffer was mapped or not.
> Or the Documentation/DMA-mapping.txt should be changed - ie add this
> to the interface definition and I can reserve the 1st mapping
> entry so no-one uses it.

we should probably have a BAD_DMA_ADDR define which that array should be
initialised to.  it's a little late in 2.4 to go through and audit all
the drivers again.

> Should I be mailing Jeff Garzik <jgarzik@mandrakesoft.com> directly?
> Or can someone who knows Jeff point this out to him?

i've cc'd jeff & dave miller on this.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] tulip DMA mapping
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   Date: Fri, 10 Nov 2000 10:18:08 +0000
   From: Matthew Wilcox <matthew@wil.cx>

   > Should I be mailing Jeff Garzik <jgarzik@mandrakesoft.com> directly?
   > Or can someone who knows Jeff point this out to him?

   i've cc'd jeff & dave miller on this.

In 2.4.x there is _NO_ error return from the PCI dma functions except
the consistent DMA mapping ones.

This was an explicit design decision, the dynamic mapping functions
should never fail, and if they do it is a hard error.

Therefore no drivers need to check for failure, as far as they are
concerned, there is no failure.

So what is the issue?  In 2.5.x I'll add an error return facility
(BTW: -1 ie. 0xfffffff would probably work as an error value on all
 platforms :-)

Later,
David S. Miller
davem@redhat.com


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Cary Coutant <cary@cup.hp.com> writes:

> We have cases where two names are used to refer to what is
> essentially the same relocation type, but that shouldn't be a
> conflict.

This is no problem, right.

-- 
---------------.      drepper at gnu.org  ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Cygnus Solutions `--' drepper at cygnus.com   `------------------------


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] parisc-linux reaches uptimes in excess of one day!
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Just for interest...  My A180 has been up for 25 hours, the first
12 of which I had a couple of telnet sessions open running vi, gcc,
etc. and since then it has been looping doing kernel builds.
I also ran cvs to update its kernel source tree from pehc.
So far it has completed about 23 kernel builds with one hiccup:

do_page_fault() pid=2420 command='cpp0'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001011
r0-3     00000000 4013ac38 400e134f 00000004
r4-7     40138c38 ffffffb5 2002014b 00000001
r8-11    00000004 00000000 00000000 4001ada0
r12-15   4001ad7c 0001b300 2001f601 00000001
r16-19   00012000 00000023 00000020 40138c38
r20-23   20020100 4012a51c 00000000 9999999a
r24-27   2002016c 2002014c 00000004 00013d34
r28-31   00000000 4013a438 200201c0 40041757
sr0-4    00000000 00000011 00000000 00000011
sr4-8    00000011 00000011 00000011 00000011

IASQ: 00000011 00000011 IAOQ: 400e13b7 400e13bb
 IIR: 0c601094    ISR: 00000011  IOR: 00000004
ORIG_R28: 40019450


Richard


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Xref: news.gmane.org gmane.linux.ports.parisc:8366

I've quoted the whole of Grants message below, so you can see the
context.  It looks like tulip is treating zero as meaning it
doesn't have anything to pci_unmap...

Grant Grundler wrote:
> Hi all,
> I see a "bug" in tulip's usage of mapping services.
> It's not the bug I was looking for unfortunately.
> 
> In line 217 of drivers/net/tulip/interrupt.c:
> 
>         if (tp->tx_buffers[entry].mapping)
>                 pci_unmap_single(tp->pdev,
>                                 tp->tx_buffers[entry].mapping,
>                                 sizeof(tp->setup_frame),
>                                 PCI_DMA_TODEVICE);
> 
> 0 is a valid pci_map_single() return value when the system has an IO MMU.
> 
> The system will panic before pci_map_single() will fail.
> The driver needs to remember some other way if a buffer was mapped or not.
> Or the Documentation/DMA-mapping.txt should be changed - ie add this
> to the interface definition and I can reserve the 1st mapping
> entry so no-one uses it.

Richard


On Fri, Nov 10, 2000 at 02:16:11AM -0800, David S. Miller wrote:
>    Date: Fri, 10 Nov 2000 10:18:08 +0000
>    From: Matthew Wilcox <matthew@wil.cx>
> 
>    > Should I be mailing Jeff Garzik <jgarzik@mandrakesoft.com> directly?
>    > Or can someone who knows Jeff point this out to him?
> 
>    i've cc'd jeff & dave miller on this.
> 
> In 2.4.x there is _NO_ error return from the PCI dma functions except
> the consistent DMA mapping ones.
> 
> This was an explicit design decision, the dynamic mapping functions
> should never fail, and if they do it is a hard error.
> 
> Therefore no drivers need to check for failure, as far as they are
> concerned, there is no failure.
> 
> So what is the issue?  In 2.5.x I'll add an error return facility
> (BTW: -1 ie. 0xfffffff would probably work as an error value on all
>  platforms :-)
> 
> Later,
> David S. Miller
> davem@redhat.com
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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   Date: Fri, 10 Nov 2000 11:12:20 +0000
   From: Richard Hirst <rhirst@linuxcare.com>

   I've quoted the whole of Grants message below, so you can see the
   context.  It looks like tulip is treating zero as meaning it
   doesn't have anything to pci_unmap...

Thank you for the clarification.

Jeff, this is in fact a bug, please fix :-)

Later,
David S. Miller
davem@redhat.com


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From: Jeff Garzik <jgarzik@mandrakesoft.com>
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Subject: Re: [parisc-linux] tulip DMA mapping
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"David S. Miller" wrote:
> 
>    Date: Fri, 10 Nov 2000 11:12:20 +0000
>    From: Richard Hirst <rhirst@linuxcare.com>
> 
>    I've quoted the whole of Grants message below, so you can see the
>    context.  It looks like tulip is treating zero as meaning it
>    doesn't have anything to pci_unmap...
> 
> Thank you for the clarification.
> 
> Jeff, this is in fact a bug, please fix :-)

np.  Like Matthew(?) hinted, this is not the only place that needs
fixing.  I'll take care of it.

	Jeff


-- 
Jeff Garzik             |
Building 1024           | Would you like a Twinkie?
MandrakeSoft            |


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= On Thu, Nov 09, 2000 at 03:53:48PM -0700, Paul Bame wrote:
= >     Somebody never imported 2.4.0-test6, then I imported -test10 on the mai
n
= >     vendor branch and now can't (easily) undo that to import test6 and THEN
= >     test10.  This workaround sucks.
= 
= don't use vendor branches.  didn't you talk to mang about this?

Um, I have no information to go on from your note.  All the (successful)
merges I've done before have used the cookbook CVS merge method including
a vendor branch.  Several (N-1?) of the palinux merges have been
accompanied by updating the vendor branch.  And this merge is going
well despite the ugly workaround, or so it appears to me.  Just
importing files to a vendor branch should have no effect on anything
else unless CVS has some horrible bug (RCS does not).  Before I make
what is apparently a serious mistake ("don't use vendor branches" sounds
pretty serious) please enlighten me!

	-P


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From: Grant Grundler <grundler@cup.hp.com>
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Mathew,
I think the situation is clarified. This is just FYI.

Matthew Wilcox wrote:
> On Thu, Nov 09, 2000 at 12:12:25PM -0800, Grant Grundler wrote:
> > 0 is a valid pci_map_single() return value when the system has an IO MMU.
> 
> Oh dear.  You can bet tulip won't be the only driver which assumes it
> isn't a valid return value.

Well, then:
1) the driver writer made a wrong assumption that the "spec"
   does not support.
2) that wasn't the case here - 0 was used as a flag to indicate
   a mapping had (or hadn't rather) been done - not that the
   mapping call had failed.

> Can't our IOMMU code be limited in such a
> way that 0 is not a valid return value?  Say, constrain all allocated
> addresses to the top half of the device bus?

It could pretty easily by reserving the dma_map[0] entry during
init time. Dave Miller already made it clear that's not desirable.

> (um, just check me on this, map_single returns a device bus address,
> not a processor bus address, right?)

Yes. It's the address a device must use to master DMA transactions.
pci_map_single() input parameters are "struct pci_dev *", virtual host
memory address, and buffer size. The return is a device specific I/O
DMA address - ie this mapping cannot be shared with other devices.

FWIW, "I/O DMA address" are called IOVAs in HPUX (I/O Virtual Address).
The HW guys prefer another name but this one stuck.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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= 
= We're getting ready to do a kernel merge (to -test10 I think).  Anybody
= concerns before we get started?
= 

I'm getting ready to commit the changes to merge us up to 2.4.0-test10 as
soon as I'm confident 64-bit kernels are OK (32-bit seems fine).

Here's a brief list of changes made (and yet to be made -- if anyone
has the time/energy) to our parisc code (does not include changes in
common code!).  While there's plenty yet to do, I think we're
no worse off than before the merge.  Some parts of our parisc code
are getting rather moldy compared to the other ports FYI.

Important tags:
	LINUS_240_TEST6			Linus' 2.4.0-test6
	LINUS_240_TEST10		Linus' 2.4.0-test10
	LINUS_240_TEST10_PREMERGE	Our tree before the -test10 merge
	LINUS_240_TEST10_MERGED		Our tree after the -test10 merge

			    ------------

Lots of 'extern __inline__' turned into 'static __inline__' and there
are more to do (TODO).

Beginnings of several smp_mb*() macros -- implemented as no-ops in
the non-SMP case (asm/bitops.h, asm/system.h)

SET_PERSONALITY() macro in asm/elf.h needs updating (TODO).

fcntl.h acquired a 'struct fcntl64' used with 64-bit offsets, implementing
fcntl(fd, F_S/GETLK[W]64, ...).  Several other locking-related #defines added.

asm/mmu_context.h:init_new_context() now returns int (always 0), not void.

Should our asm/bitops.h routines be re-coded in assembly? (TODO)

Added #define RLIMIT_LOCKS to asm/resource.h

Added #define CLOCKS_PER_SEC to asm/param.h (how did we miss this one?)

Our asm/string.h is behind the times.  Fixing it might get rid of a
bunch of compiler warnings! (TODO)

Removed mktime from drivers/char/genrtc.c (it's in a header file now)

x86 made a bunch of changes to asm-i386/floppy.h -- should we? (TODO)

looks like maybe the get/put_user_ret() functions in asm/uaccess.h are
obsolete?  (TODO)

We'll need to add the getdents64() and fcntl64() syscall glue. (TODO!!!)

Our arch/parisc/config.in is in BAD SHAPE (TODO)

arch/parisc/process.c: added new argsto do_fork() and copy_thread().
IA64 seems to use the copy_thread() arg.

arch/parisc/signal.c: minor change to common data structure

drivers/scsi sym53c8xx_comm.h #ifdef doesn't work on parisc -- eliminates
                unmap_pci_mem() causing link error (TODO - rhirst)


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Subject: [parisc-linux] Beta CD
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--uXxzq0nDebZQVNAZ
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Hello fellow PA-RISCers,

An preliminary beta CD for PA/Linux has been uploaded to
puffin.external.hp.com.  If people could try it and forward any complaints
or suggestions to me, it would be greatly appreciated.  The URL for the
image is: ftp://puffin.external.hp.com/pub/parisc/cd-images/palinux-0.5.iso.gz

					- Paul

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> Our asm/string.h is behind the times.  Fixing it might get rid of a
> bunch of compiler warnings! (TODO)

if this is just an issue of implementing the various parisc-optimized string 
routines, i've been working on this, but don't have everything ready
yet.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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Xref: news.gmane.org gmane.linux.ports.parisc:8374

Considering how often this question comes up is there anyone out there
that is interested in tracking down the info to port linux to this class
of box.

Server boxes may be classed as boring to some but there seem to be a
large number of people who have at least one of them sitting about doing
nothing.

Joe.

-- 
=======================================================================
in real life: Joseph Skinner         |There's no such thing as a wizard
email: crypt@ihug.co.nz              |who minds his own business
       Analyst/Programmer            | - Berengis the Black
                                     |   Court Mage to the Earls Caeline
========================================================================


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Alex deVries <adevries@redhat.com> writes:

> Could someone provide me with a reference to the SVR4 gABI document?

The most recent (though in draft form) is at

	http://www.sco.com/developer/gabi/contents.html

-- 
---------------.      drepper at gnu.org  ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Cygnus Solutions `--' drepper at cygnus.com   `------------------------


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From: Rod Smart <snaketails@optushome.com.au>
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Subject: [parisc-linux] PA-RISC newbie
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    Hi there.

    I just purchased at a **VERY** cheap price, a HP Visualize C-180
RISC system from a CAD drafting company, this box included a 4Gb Hard
disk, a video card with unknown amount of memory (& daughter board,
assuming its memory upgrade) and system board RAM is fully loaded
(768Megs).

    I would like to run this system on Linux, and found the PA-RISC web
site from the www.linux.org web site :o)

    The system currently has HP-UX installed, but not having any
usernames or passwords, I cannot access the system from the prompt.

    I have read how to NFS-boot the HPbox from the message board, but I
couldn't figgure out where to find the kernel sources (or how I would be
able to compile them on the HPbox anyway).

    I downloaded the vmlinux kernel file from the ftp site and the
NFS-ROOT and installed both on my current Linux box (Pentium 133
pre-MMX) in the format of how it was layed out in ...

LINUX/PA-RISC NFSROOT HOWTO

    In there it states that you have to get the latest linux-2.3 tree
from CVS, but which CVS server I'm curious about as the ones on
ftp.kernel.org don't have "parisc" in the /arch/ branch, so where do I
find the CVS "tree" that I need to use?

    I seem to have the "STEP 2." section running, as from playing with
the system I had found my way into the PDC prompt and have played with
the "boot" function. I tried to boot the installation CD (on a drive I
have borrowed from work) of HP-UX and reinstall so I have access, as I
don't really care whats currently on the system..

    I'm not confident enough on how to create and burn a bootable CD to
try and boot the box that way, I still think the vmlinux kernel I
downloaded from the PA-RISC website has something to do with my problems
(or the permissions)

    I do know that the Hp is talking to the Linux box (apart from the
lack of logged info) I get a report in /var/log/secure and messages that
the HP box has attempted a bootp session, but the HP box reports
something along the lines that the booting code was not found.

    So, if anyone has any ideas on how to help me, I would be
appreciated ;o)

    Oh, what *is* the RAM modules in the Hp systems anyway (apart from
the obvious 64Mx72-pin SIMM)

    Thank you for your time and help :o)

    PS. I would prefer replies to my E-mail address as I generally
forget to surf the net reading mailing lists....



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Xref: news.gmane.org gmane.linux.ports.parisc:8377

> Considering how often this question comes up is there anyone out there
> that is interested in tracking down the info to port linux to this class
> of box.
> 
> Server boxes may be classed as boring to some but there seem to be a
> large number of people who have at least one of them sitting about doing
> nothing.
> 
> Joe.

I don't perceive the problem to be a lack of willingness, or interest, but
has already been stated the older systems contain a lot of proprietry stuff
that isn't sufficiently documented for people to work on.

Maybe as the parisc port grows more popular and attracts more resources,
some enthusiastic people will get it happening.  =)

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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Subject: Re: [parisc-linux] HP 9000 e25
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Andrew Shugg wrote:
> > Considering how often this question comes up is there anyone out there
> > that is interested in tracking down the info to port linux to this class
> > of box.
> > 
> > Server boxes may be classed as boring to some but there seem to be a
> > large number of people who have at least one of them sitting about doing
> > nothing.
> > 
> > Joe.
> 
> I don't perceive the problem to be a lack of willingness, or interest, but
> has already been stated the older systems contain a lot of proprietry stuff
> that isn't sufficiently documented for people to work on.

AFIAK, the chipsets for I/O devices in E25 have plenty of documentation.
The issue is someone has to clean them up and get a lawyer to approve
their publication. It's all about IP and avoiding lawsuits. This has
been discussed before.  Any HP employees interested in doing this "on
their own time" can contact me and I'll help locate unpublished docs.

Note that PDC is the same for Nova-Class (EFGHI-class) boxes as for
the workstations for the most part. So someone could start by just
trying to boot those boxes and see how far it gets before dying.


> Maybe as the parisc port grows more popular and attracts more resources,
> some enthusiastic people will get it happening.  =)

Having worked on the HPUX SCSI driver (scsi3 and scsi1) for E25 and
similar boxes, I question anyone's sanity who volunteers to write
drivers for SPIFI chips - even with full documentation. I would rather
give folks that interested in contributing a 715/33! (or my gosh /50's!)

Yes - I know folks who collect PDP's and keep them running in their
garage...'nuf said.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Rod Smart wrote:
>     Hi there.
> 
>     I just purchased at a **VERY** cheap price, a HP Visualize C-180
> RISC system from a CAD drafting company, this box included a 4Gb Hard
> disk, a video card with unknown amount of memory (& daughter board,
> assuming its memory upgrade) and system board RAM is fully loaded
> (768Megs).
> 
>     I would like to run this system on Linux, and found the PA-RISC web
> site from the www.linux.org web site :o)
> 
>     The system currently has HP-UX installed, but not having any
> usernames or passwords, I cannot access the system from the prompt.

Yes you can. You just need to know how.

Interrupt the boot process to get a "BOOT ADMIN" prompt (or whatever
it's called - Boot Console Handler).
Then "boot primary isl" (shortened to bo pri isl)
You should have an "ISL>" prompt now.
ISL> hpux -is
And you will boot to single user state with a shell.
mountall and you should have the regular tools too.
vi /etc/passwd to your hearts content.

"There is no such thing at security with out physical security".

..
>     I'm not confident enough on how to create and burn a bootable CD to
> try and boot the box that way, I still think the vmlinux kernel I
> downloaded from the PA-RISC website has something to do with my problems
> (or the permissions)
>

You can dd the ISO image to a regular hard disk (ie /dev/sdc) and move
that disk over to the C180. Then boot from that disk.
>From BCH, use "sea" to locate all boot devices.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] glibc question
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I'm working with bdale and taggart to try to get the Debian glibc
package to compile under hppa. One of the things I saw today while
playing with this is that the build dies because it tries to link in
bsd-setjmp.c and bsd-_setjmp.c, which both define setjmp. Can someone
enlighten me about why this may be happening?

This is built from the glibc-2.2 sources, which I understand has
all/most of the changes in pehc cvs.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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From: Brian Poole <rajak@purdue.edu>
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Subject: [parisc-linux] Problems booting new beta CD
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Hello,

My machine is a 715/80 with 88M of RAM, 1G HD, external 4x CD drive &
floppy.

Trying to get the new palinux CD working on my 715/80 here and not having
too much success. Did get the CD to actually boot, but after all the
normal Linux init messages (which were very nice to see btw,
congratulations on how far it has already gotten ;) it stops at 'Switching
from PDC console'. 

Looking thru the FAQ I saw a somewhat similar question, in that it had
'pdc' in it & was booting from the CD (but the 0.1 CD, not the one I am
using), that said the kernel on the CD booted from/to the
serial console. Is this also true of the 0.5 CD? If so, what is necessary
to boot one of these from console? I've been fooling with it to no
success.. I have it automatically booting from the CD, but it doesn't
actually boot. I replug in the monitor & keyboard and find that it can't
boot without the keyboard ('Failed to initiliaze a keyboard\n SYSTEM 
HALTED').. How am I supposed to boot to the console if I can't boot w/o a
keyboard? I imagine if it has a keyboard it will boot to the screen like a
Sun.

Thanks for the help,

-b




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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems booting new beta CD
Date: Sat, 11 Nov 2000 23:31:37 -0800
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Brian Poole wrote:
...
> Looking thru the FAQ

Brian,
Thank you for first reading the FAQ!

> I saw a somewhat similar question, in that it had
> 'pdc' in it & was booting from the CD (but the 0.1 CD, not the one I am
> using), that said the kernel on the CD booted from/to the
> serial console. Is this also true of the 0.5 CD?

I think it is.
Is there a way via PALO to direct the console to FBCON or STICON or
whatever it's called now?

I had the impression *eventually* the boot console would be whatever PDC
says it is - ie graphics console for the 712.

> If so, what is necessary to boot one of these from console?

kernel with CONFIG_STI_CONSOLE I think....but that's not enabled by default.
It may not be possible to use the graphics console unless one builds
a "custom" kernel.

> I've been fooling with it to no
> success.. I have it automatically booting from the CD, but it doesn't
> actually boot. I replug in the monitor & keyboard and find that it can't
> boot without the keyboard ('Failed to initiliaze a keyboard\n SYSTEM 
> HALTED').. How am I supposed to boot to the console if I can't boot w/o a
> keyboard? I imagine if it has a keyboard it will boot to the screen like a
> Sun.

AFAIK, 712's are the only parisc workstations what won't boot w/o keyboard.
All others will auto-switch to use serial console if the keyboard
is not connected.

Both or the above questions sounds like a FAQ.
Could someone who knows more update/add those to the FAQ?

thanks,
grant

ps. The most up-to-date FAQ is at parisc-linux.org/faq.html even
though that's not officially online yet.

> 
> Thanks for the help,
> 
> -b
> 
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] glibc question
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On Sat, 11 Nov 2000, Randolph Chung wrote:

> I'm working with bdale and taggart to try to get the Debian glibc
> package to compile under hppa. One of the things I saw today while
> playing with this is that the build dies because it tries to link in
> bsd-setjmp.c and bsd-_setjmp.c, which both define setjmp. Can someone
> enlighten me about why this may be happening?

I think bsd-_setjmp.c should define _setjmp, not setjmp.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Andrew Shugg <andrew@neep.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 9000 e25
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Grant Grundler said:
> AFIAK, the chipsets for I/O devices in E25 have plenty of
> documentation.  The issue is someone has to clean them up and get a
> lawyer to approve their publication.

My bad, I should've said "public documentation".  =)

*prods LC FAQ maintainers*

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] glibc build fails / bash bug
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Bdale, taggart and I have been looking at trying to build glibc on hppa
from Debian's sources.  What we saw was that it looks like a lot of the 
syscalls were not being reocognized as such by one part of the build, so 
it tries to build things from the sysdeps/generic directory and fails.

After a lot of digging, I *think* what is at fault is actually bash. It
looks like during the build, a shell script (make-syscalls.sh) parses
through syscalls.list to generate syscall stubs that are needed for the
build to happen correctly, but these are not being generated. What it 
boils down to, I think, is this:

(on hppa - bdale's J5K)
=============================
tausq@j5k:/space/tausq $ bash --version
GNU bash, version 2.04.0(1)-release (hppa-unknown-linux-gnu)
Copyright 1999 Free Software Foundation, Inc.
tausq@j5k:/space/tausq $ dpkg -l |grep bash
ii  bash           2.04-7         The GNU Bourne Again SHell
tausq@j5k:/space/tausq $ cat test.sh
#!/bin/sh

echo "1 2 3 4 5
a b c d e 
" | 
while read a b c d e; do
        echo $a $b $c $d $e
done
tausq@j5k:/space/tausq $ /bin/bash test.sh
1 2 3 4 5
=============================
(on other archs, tested with i386 and sparc)
samwise[11:06] ~% bash --version    
GNU bash, version 2.04.0(1)-release (i386-pc-linux-gnu)
Copyright 1999 Free Software Foundation, Inc.
samwise[11:06] ~% dpkg -l |grep bash
ii  bash           2.04-7         The GNU Bourne Again SHell
samwise[11:06] ~% /bin/bash test.sh
1 2 3 4 5
a b c d e


This causes the parsing routines to die quite miserably....

Anyone feel like trying to fix this? :-)

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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From: tor@spacetec.no (Tor Arntsen)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] CVS has moved!
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On Apr 19, 22:24, Alex deVries wrote:
>For hopefully the last time, the parisc-linux CVS server has moved.  It is
>now at:
>
>:pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc
>(for anonymous read only access)
[..]

I was just about to ask on the list what was going on, thanks :-)
Now a problem: 
cvs server: failed to create lock directory in repository `/home/cvs/parisc/linux/arch/parisc/hp/kernel': Permission denied
cvs server: failed to obtain dir lock in repository `/home/cvs/parisc/linux/arch/parisc/hp/kernel'
cvs [server aborted]: read lock failed - giving up

I built a cross compiler on Irix a couple of weeks ago and assembed one
complete model 715 from a bunch of cannibalised ones.  I'm not sure if
I'll ever get time to contribute much, or anything at all (he says while 
looking at the too long powered-off MIPS Magnum clone under his desktop), 
so I won't make much noise on this list I think.  The next thing I wanted 
to do when I get some hours free however is to figure out how you guys 
intended to run the boot stuff.

`make depend' seems to work fine now with that little fix you made to the 
Makefile btw.

- Tor


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From: "Phillip D. Beal" <pdbeal@louisville.edu>
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Subject: Re: [parisc-linux] Beta CD
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On Fri, Nov 10, 2000 at 05:14:06PM -0500, Paul J.Y. Lahaie wrote:
> Hello fellow PA-RISCers,
> 
> An preliminary beta CD for PA/Linux has been uploaded to
> puffin.external.hp.com.  If people could try it and forward any complaints
> or suggestions to me, it would be greatly appreciated.  The URL for the
> image is: ftp://puffin.external.hp.com/pub/parisc/cd-images/palinux-0.5.iso.gz
> 
> 					- Paul
The kernel dumps on an HP755.  Actually, how do you make these CD's?  I
know how to use mkisofs to crerat a filesystem CD, but how you make it
bootable with a kernel image? 

Thanks,
-- 
Phillip Beal
Electrical and Computer Engineering
S+LUG Vice-President


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Subject: Re: [parisc-linux] glibc build fails / bash bug
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= After a lot of digging, I *think* what is at fault is actually bash.

Bash has a bunch of 'set' options, some shell variables, and probably
some compile-time configure options, which affect its behavior, so I'd
compare all those.  One possibility is that the bash configure script on
hppa configures bash to be more like Posix, since that's what hp-ux shell
users expect.

The construct in question:

	echo "a b c
		1 2 3" | while read x1 x2 x3

*depends* on the way echo breaks or doesn't break lines, and the way
read parses them.  Often scripts like that also depend on whether
the shell actually makes a new subprocess for the 'while' or it doesn't,
because that determines whether variables set in the loop will still be
set on exit from the loop.  While I didn't find a way to make the
construction fail, a safer method (when you get a choice) is to use 'set':

	set -- a b c \
		1 2 3

	while [ $# != 0 ]
	do
	    echo $1 $2 $3
	    shift 3
	done

	-Paul "too much shell programming" Bame


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Helge noticed SCSI fails (B160L, 712, I think it's ok on c3k)
after the -test10 merge.  We have MANY differences from Linus in the SCSI
area.  Anybody want to take a look at this?  FYI to get
the pre-merge kernel you can use LINUS_240_TEST10_PREMERGE.  Beware
that tags are sticky in CVS (use cvs update -A to fix that).

	-P


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 Hello, 
Its been so long since I've had an email I was curious if this has
become a Dead project? 

Just curious.
Terry




-- 
catfish: icq #20116127


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=  Hello, 
= Its been so long since I've had an email I was curious if this has
= become a Dead project? 

You might want to check the e-mail archives to see what you've been
missing.  I don't know why you haven't been receiving anything.  The
project is quite alive.

    http://www.parisc-linux.org/lists.html

    	-P


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= 
= Helge noticed SCSI fails (B160L, 712, I think it's ok on c3k)
= after the -test10 merge.

Fixed.

>From test6 to test10 the SCSI host registration method changed.
Updated sim700.c, lasi7xx.h, zalon7xx.h

	-P


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Problems booting new beta CD
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Brian Poole wrote:
> Quoting Grant Grundler (grundler@cup.hp.com) from 11 November 2000:
> > Is there a way via PALO to direct the console to FBCON or STICON or
> > whatever it's called now?
> > 
> > I had the impression *eventually* the boot console would be whatever PDC
> > says it is - ie graphics console for the 712.
> 
> Working on a 715 here.. notice you refer to 712s throughout, hopefully we are
> on the same page. Maybe 712s are identical to 715s, I don't have any idea,
> just noticed the irregularity.

For the most part yes. I had just assumed you were using a 712.

> I meant to say 'from serial console' or something of the sort.. 

Serial console should just work.
Shouldn't need an HIL keyboard connected though.

> 
> > > I've been fooling with it to no
> > > success.. I have it automatically booting from the CD, but it doesn't
> > > actually boot. I replug in the monitor & keyboard and find that it can't
> > > boot without the keyboard ('Failed to initiliaze a keyboard\n SYSTEM 
> > > HALTED').. How am I supposed to boot to the console if I can't boot w/o a
> > > keyboard? I imagine if it has a keyboard it will boot to the screen like 
>   a
> > > Sun.
> > 
> > AFAIK, 712's are the only parisc workstations what won't boot w/o keyboard.
> > All others will auto-switch to use serial console if the keyboard
> > is not connected
> 
> Hmmm.. so I have manually switch it to use serial console?

No. Just disconnect the keyboard before powering on the machine.
Should end up with console on the serial interface.

You may want to set the keyboard/console path to the serial port.
This can be done from "BOOT_ADMIN>" prompt.

The default kernel has "CONFIG_HIL=y". But since I don't test on
boxes with HIL interfaces, I have no idea if a keyboard is required
since the driver is enabled. It sounds like a bug if the 715
can't boot from serial console w/o HIL keyboard.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Subject: [parisc-linux] [Semi OT] SOM Linker
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Hello,

I have been watching this project for some time and wanted to thank you
guys for all the great work so far. The recent announcement of a BETA CD
is highly encouraging.

However I would like to know what work if any has been done on the SOM
linker which HP released to the public last November(?). It seems that
as of right now, it has not been touched since February 14, and the FSF
binutils snapshots still do not have any SOM support for ld. Has there
been any movement in merging this in, or is anybody working on this?
Thanks.

Dara Hazeghi


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On Monday 13 November 2000 03:20, bame@riverrock.org wrote:
> = 
> = Helge noticed SCSI fails (B160L, 712, I think it's ok on c3k)
> = after the -test10 merge.
> 
> Fixed.
> 
> >From test6 to test10 the SCSI host registration method changed.
> Updated sim700.c, lasi7xx.h, zalon7xx.h
> 
> 	-P

Thanks Paul,

sim700 (53c710) now works again, but the second built-in controller (ncr/sym 
53c8xx) still doesn't.

Greetings,

	Helge


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Confused me for a while, anyway.  If you cvs update your kernel
source and expect to build a 32 bit kernel, you need to edit the
top level Makefile to change the arch := line.

Richard


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From: Phil Schwan <pschwan@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] CVS has moved!
Date: Tue, 20 Apr 1999 08:10:06 -0400
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On Apr 20, Tor Arntsen wrote:
> Now a problem: 
> cvs server: failed to create lock directory in repository `/home/cvs/parisc/linux/arch/parisc/hp/kernel': Permission denied
> cvs server: failed to obtain dir lock in repository `/home/cvs/parisc/linux/arch/parisc/hp/kernel'
> cvs [server aborted]: read lock failed - giving up

I've fixed this for now, and I see why it happened.  Thanks for
letting us know.

-Phil

------------------------------------------------------------------
"In film you will find four basic story lines. Man versus man, man
versus nature, nature versus nature, and dog versus vampire."
        - Steven Spielberg


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] kernel merge
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To: bame@riverrock.org
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Xref: news.gmane.org gmane.linux.ports.parisc:8398

On Fri, Nov 10, 2000 at 02:28:33PM -0700, bame@riverrock.org wrote:
> drivers/scsi sym53c8xx_comm.h #ifdef doesn't work on parisc -- eliminates
>                 unmap_pci_mem() causing link error (TODO - rhirst)

Fixed.  This relates to NVRAM that some PCI scsi cards have to hold
config settings over reboot.  CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
is normally defined in sym53c8xx_defs.h to turn that code on.  When
I implemented Zalon (FWD) support I guessed that the 53c720 h/w
wouldn't have NVRAM implemented the same way, and turned off
NVRAM detect.

I've also replaced a chunk of Zalon specific code that got lost in
the merge, so Zalon/FWD/53c720 support works again.

There is a problem remaining when using the driver as a module;
it looks like something is trying to printk() from a string in
the module after the module has been removed.  Havn't tracked
that down yet.

Richard


From - Thu Nov 08 21:14:03 2018
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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [Semi OT] SOM Linker
Date: Mon, 13 Nov 2000 13:50:24 -0500
Organization: The Puffins at Linuxcare
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To: dhazeghi@pacbell.net
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dhazeghi@pacbell.net wrote:
> However I would like to know what work if any has been done on the SOM
> linker which HP released to the public last November(?). It seems that
> as of right now, it has not been touched since February 14, and the FSF
> binutils snapshots still do not have any SOM support for ld. Has there
> been any movement in merging this in, or is anybody working on this?

The initial plan was to do our 32-bit userspace with SOM, worrying about
ELF32 much later in the game.  But ELF32 development happened a lot
quicker than expected, and so nobody's really done much on the SOM
linker.

I suspect it'd be very hard to use the SOM linker code to incorporate it
into binutils, but I could be wrong.

What are you actually trying to do?

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


From - Thu Nov 08 21:14:04 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: sym53c8xx-driver   (was: Re: [parisc-linux] kernel merge)
Date: Mon, 13 Nov 2000 23:54:29 +0100
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On Monday 13 November 2000 13:13, Richard Hirst wrote:
> On Fri, Nov 10, 2000 at 02:28:33PM -0700, bame@riverrock.org wrote:
> > drivers/scsi sym53c8xx_comm.h #ifdef doesn't work on parisc -- eliminates
> >                 unmap_pci_mem() causing link error (TODO - rhirst)
> 
> Fixed.  This relates to NVRAM that some PCI scsi cards have to hold
> config settings over reboot.  CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
> is normally defined in sym53c8xx_defs.h to turn that code on.  When
> I implemented Zalon (FWD) support I guessed that the 53c720 h/w
> wouldn't have NVRAM implemented the same way, and turned off
> NVRAM detect.
> 
> I've also replaced a chunk of Zalon specific code that got lost in
> the merge, so Zalon/FWD/53c720 support works again.
> 
> There is a problem remaining when using the driver as a module;
> it looks like something is trying to printk() from a string in
> the module after the module has been removed.  Havn't tracked
> that down yet.
> 
> Richard


Hi Richard,

I'm sorry to say that the sym53c8xx still doesn't work on my B160L (32 
bit-Kernel). It looks like the controller isn't detected at all, while it 
worked perfectly with 2.4.0-test6.
Would you mind to take a look at the code again ?

Thanks,
	Helge.


From - Thu Nov 08 21:14:04 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: sym53c8xx-driver   (was: Re: [parisc-linux] kernel merge)
Date: Mon, 13 Nov 2000 23:27:52 +0000
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To: Helge Deller <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:8401

Hi Helge,
  The problem I fixed related to the ncr53c8xx driver (which shares
code with sym53c8xx), and was to make 53c720 support work again.
sym53c8xx worked for me on my A180.  Please can you try booting
with

	sym53c8xx=verb:7,debug:0xffff

and send me the output?

Thanks,
 Richard


On Mon, Nov 13, 2000 at 11:54:29PM +0100, Helge Deller wrote:
> On Monday 13 November 2000 13:13, Richard Hirst wrote:
> > On Fri, Nov 10, 2000 at 02:28:33PM -0700, bame@riverrock.org wrote:
> > > drivers/scsi sym53c8xx_comm.h #ifdef doesn't work on parisc -- eliminates
> > >                 unmap_pci_mem() causing link error (TODO - rhirst)
> > 
> > Fixed.  This relates to NVRAM that some PCI scsi cards have to hold
> > config settings over reboot.  CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
> > is normally defined in sym53c8xx_defs.h to turn that code on.  When
> > I implemented Zalon (FWD) support I guessed that the 53c720 h/w
> > wouldn't have NVRAM implemented the same way, and turned off
> > NVRAM detect.
> > 
> > I've also replaced a chunk of Zalon specific code that got lost in
> > the merge, so Zalon/FWD/53c720 support works again.
> > 
> > There is a problem remaining when using the driver as a module;
> > it looks like something is trying to printk() from a string in
> > the module after the module has been removed.  Havn't tracked
> > that down yet.
> > 
> > Richard
> 
> 
> Hi Richard,
> 
> I'm sorry to say that the sym53c8xx still doesn't work on my B160L (32 
> bit-Kernel). It looks like the controller isn't detected at all, while it 
> worked perfectly with 2.4.0-test6.
> Would you mind to take a look at the code again ?
> 
> Thanks,
> 	Helge.
> 


From - Thu Nov 08 21:14:04 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: sym53c8xx-driver (was: Re: [parisc-linux] kernel merge)
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--------------Boundary-00=_ABNZX5KGKOOFAA0B1BIM
Content-Type: text/plain;
  charset="us-ascii"
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Subject: 

On Tuesday 14 November 2000 00:27, Richard Hirst wrote:
> Hi Helge,
>   The problem I fixed related to the ncr53c8xx driver (which shares
> code with sym53c8xx), and was to make 53c720 support work again.
> sym53c8xx worked for me on my A180.  Please can you try booting
> with
> 
> 	sym53c8xx=verb:7,debug:0xffff
> 
> and send me the output?
> 
> Thanks,
>  Richard


Hi Richard,

the output and the relevant part of .config is attached.

Greetings,

	Helge

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--------------Boundary-00=_ABNZX5KGKOOFAA0B1BIM--


From - Thu Nov 08 21:14:04 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: sym53c8xx-driver (was: Re: [parisc-linux] kernel merge)
Date: Tue, 14 Nov 2000 10:17:04 +0000
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Message-ID: <20001114101704.Y32715@linuxcare.com>
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Cc: bame@riverrock.org, parisc-linux@puffin.external.hp.com
To: Helge Deller <deller@gmx.de>
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In-Reply-To: <00111401135802.00319@P100>; from deller@gmx.de on Tue, Nov 14, 2000 at 01:13:58AM +0100
Xref: news.gmane.org gmane.linux.ports.parisc:8403

Hi Helge,

On Tue, Nov 14, 2000 at 01:13:58AM +0100, Helge Deller wrote:
> On Tuesday 14 November 2000 00:27, Richard Hirst wrote:
> > Hi Helge,
> >   The problem I fixed related to the ncr53c8xx driver (which shares
> > code with sym53c8xx), and was to make 53c720 support work again.
> > sym53c8xx worked for me on my A180.  Please can you try booting
> > with
> > 
> > 	sym53c8xx=verb:7,debug:0xffff
> > 
> > and send me the output?
> > 
> > Thanks,
> >  Richard
> 
> 
> Hi Richard,
> 
> the output and the relevant part of .config is attached.
> 
> Greetings,
> 
> 	Helge

Thanks.  I agree it doesn't look like the driver is even seeing the
chip; I wonder if PCI support is broken...

> dino_bridge_init: IO_ADDR_EN hasn't been configured.
> kernel BUG at dino.c:646!

Does it usually say that on bootup?

Richard


From - Thu Nov 08 21:14:04 2018
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On Fri, Nov 10, 2000 at 02:28:33PM -0700, bame@riverrock.org wrote:
> fcntl.h acquired a 'struct fcntl64' used with 64-bit offsets, implementing
> fcntl(fd, F_S/GETLK[W]64, ...).  Several other locking-related #defines added.
> 
> We'll need to add the getdents64() and fcntl64() syscall glue. (TODO!!!)

actually, we don't.  Linux/PA-RISC has sufficiently wide data types
already so we don't have the grot required in other ports to support
the appropriate wide data types.

> looks like maybe the get/put_user_ret() functions in asm/uaccess.h are
> obsolete?  (TODO)

yes, they are.  exterminate!  exterminate!

-- 
Revolutions do not require corporate support.


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From: Helge Deller <deller@gmx.de>
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> Hi Helge,
> 
> On Tue, Nov 14, 2000 at 01:13:58AM +0100, Helge Deller wrote:
> > On Tuesday 14 November 2000 00:27, Richard Hirst wrote:
> > > Hi Helge,
> > >   The problem I fixed related to the ncr53c8xx driver (which shares
> > > code with sym53c8xx), and was to make 53c720 support work again.
> > > sym53c8xx worked for me on my A180.  Please can you try booting
> > > with
> > > 
> > > 	sym53c8xx=verb:7,debug:0xffff
> > > 
> > > and send me the output?
> > > 
> > > Thanks,
> > >  Richard
> > 
> > 
> > Hi Richard,
> > 
> > the output and the relevant part of .config is attached.
> > 
> > Greetings,
> > 
> > 	Helge
> 
> Thanks.  I agree it doesn't look like the driver is even seeing the
> chip; I wonder if PCI support is broken...
> 
> > dino_bridge_init: IO_ADDR_EN hasn't been configured.
> > kernel BUG at dino.c:646!
> 
> Does it usually say that on bootup?

Yep. 
Has always been there, but nevertheless the scsi-driver worked before.
FYI: The non-pci sim700-driver also didn't showed up before pb fixed it in
CVS with a few one-line-patches.

NB: Could maybe someone (ggg?) explain me the kernel-bug mentioned above ?

> 
> Richard
> 

Greetings,

	Helge

-- 
Sent through GMX FreeMail - http://www.gmx.net


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] dino maintainer?
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Anyone interested in maintaining Dino?

I don't have time for it and all the docs are on the web.
One of the "TODO" things is to convert dino.c to use struct
pci_hba the same way lba_pci.c does....

Richard Hirst wrote:
...
> Thanks.  I agree it doesn't look like the driver is even seeing the
> chip; I wonder if PCI support is broken...
> 
> > dino_bridge_init: IO_ADDR_EN hasn't been configured.
> > kernel BUG at dino.c:646!
> 
> Does it usually say that on bootup?

per Helge's request:

The bug is normal for card-mode Dino - not for Built-in Dino.
I think Helge has the GSC 100BT card which is a card-mode Dino on-board
with one (or two) Tulip(s) behind it.

The warning is a reminder one can NOT use MMIO accesses to those
PCI devices and *only* I/O Port space (eg inb/outb).

If someone wants to fix the warning so it's quiet for card-mode
devices...see is_card_dino(d) in dino_driver_callback() for an
example.

FYI - card-mode dino was used for several different networking
interfaces but not SCSI interfaces.

hope this helps,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Paul Bame <bame@noam.fc.hp.com>
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Subject: [parisc-linux] CVS linux Vs. -test10
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I've attached an overview of differences between our CVS linux sources
following the -test10 merge and the upstream -test10 sources.  This
document is also at http://puffin.external.hp.com/~bame/diff.html
The raw 'diff' output (now a bit out of date) is at
http://puffin.external.hp.com/~bame/diff.out

If anyone gets bored, this list is full of small (and not so small)
tasks which range from very simple (drivers/block/rd.c) to fairly
complex (scripts/*).

	-P


                        palinux Vs. linux 2.4.0-test10
                                       
   Here's a brief summary of the differences in common code between
   palinux (tag: LINUS_240_TEST10_MERGED) and the upstream -test10
   sources. The full diff output is in diff.out. NOTE this does not
   include machine-depend differences
     * Minor changes in several locations to support GSC
     * Minor top-level Makefile hacks, though the CFLAGS one is quite
       important.
     * Lots of RCS $Revision$ differences in ACPI (a different 'cvs
       import' would've eliminated these differences).
     * drivers/block/rd.c: obsolete debug code for parisc64. Changed a
       constant from 0xffffffffL to 0xffffffffUL because of a parisc64
       gcc bug initializing longs. The repaired code is probably "more
       correct" anyway.
     * drivers/char/Config.in: changes to support LASI, parisc real-time
       clock (CONFIG_GENRTC)
     * drivers/char/Makefile: Config-related changes to support HP
       keyboards and RTC
     * drivers/char/console.c: looks like dead or dying experimental
       parisc code -- probably should be removed. Also some
       parisc-specific comments and format changes which should
       disappear.
     * drivers/char/serial.c: support for GSC and A500 serial
     * drivers/net/Makefile,Space.c: mostly LASI LAN support
     * drivers/net/eepro100.c: no clue about this one
     * drivers/net/tulip/interrupt.c: workaround for a B180+busy-lan boot
       problem -- probably should be sent upstream.
     * drivers/net/tulip/tulip_core.c: required #ifdef for hppa, also
       printk() changes which appear valid
     * drivers/parport/Makefile: GSC
     * drivers/parport/parport_gsc.c: New file for palinux -- GSC
       parallel ports -- required
     * drivers/pci/pci.c: eh? Grant?
     * drivers/pci/setup-bus.c: function definition tweek -- Grant?
     * drivers/scsi: Lots of changes here -- rhirst? See for yourself.
       Basics: support LASI and Zalon scsi, changes to 53c8xx drivers,
       rename sim7x0 to sim710
     * drivers/sound: support for HP "Harmony" sound
     * drivers/video: STI and HP FB video drivers (iodccon is probably
       worthless)
     * fs: add support for SOM executables
     * fs/binfmt_elf.c,exec.c: changes for stack-grows-up?
     * fs/nfs/read.c: probably unnecessary hack for broken parisc64 gcc
     * fs/proc/array.c: ?? something with signals ??
     * fs/stat.c: added __hppa__ to several #ifdefs
     * include/linux/binfmts.h,fs.h,kernel.h,tty.h,udf_fs_sb.h:
       unnecessary differences?
     * include/linux/init.h: we use different section names -- why????,
       probably some unnecessary other differences too
     * include/linux/mm.h: VM_STACK_FLAGS difference -- jsm?
     * include/linux/wait.h: parisc debugging -- should be removed
     * init/main.c: KWDB and GSC support plus a bunch of stuff which
       should probably go away.
     * kernel/Makefile,dma.c,fork.c,printk.c: eh?
     * kernel/module.c: possible parisc-needed changes
     * kernel/signal.c: unknown signal-related differences
     * lib/inflate.c: changed some constants to work around parisc64 gcc
       bug
     * mm/mprotect.c: ?
     * scripts/*: MANY differences here. Looks like a combination of
       things we hacked to fix configuration problems plus MAYBE not
       updating these files from new Linux versions in the past. 'make
       menuconfig' is significantly different from upstream. Even the
       mkdep.c program is different.


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justin@puffin.external.hp.com wrote:
> puffin, is binutils-x-hppa ok?

binutils-x-parisc, no?

Mike

-- 
241391.11 234198.98


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= On Fri, Nov 10, 2000 at 02:28:33PM -0700, bame@riverrock.org wrote:
= > fcntl.h acquired a 'struct fcntl64' used with 64-bit offsets, implementing
= > fcntl(fd, F_S/GETLK[W]64, ...).  Several other locking-related #defines add
ed.
= > 
= > We'll need to add the getdents64() and fcntl64() syscall glue. (TODO!!!)
= 
= actually, we don't.  Linux/PA-RISC has sufficiently wide data types
= already so we don't have the grot required in other ports to support
= the appropriate wide data types.

Ok that sounds great but I need a clue how to see it.  struct flock
contains an off_t which is 32 bits on narrow (wide too at the moment,
but that will probably change).  Also, struct dirent contains
a 32-bit inode and a __kernel_off_t offset (d_off), which is also
32 bits narrow.  I did see the ... in our fcntl() syscall definition
so I'll go check glibc to see what's happening there.

I wouldn't be so picky except that I need to write
the 32/64 syscall translators for these soon!  Thanks!

	-P


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= On Fri, Nov 10, 2000 at 02:28:33PM -0700, bame@riverrock.org wrote:
= > fcntl.h acquired a 'struct fcntl64' used with 64-bit offsets, implementing
= > fcntl(fd, F_S/GETLK[W]64, ...).  Several other locking-related #defines add
ed.
= > 
= > We'll need to add the getdents64() and fcntl64() syscall glue. (TODO!!!)
= 
= actually, we don't.  Linux/PA-RISC has sufficiently wide data types
= already so we don't have the grot required in other ports to support
= the appropriate wide data types.

Oh, and won't we have to support these syscalls anyway, because user programs
will make them?  I suppose we could #define them in libc headers.

= > looks like maybe the get/put_user_ret() functions in asm/uaccess.h are
= > obsolete?  (TODO)
= 
= yes, they are.  exterminate!  exterminate!

Done


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From: "Phillip D. Beal" <pdbeal@louisville.edu>
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Subject: [parisc-linux] 735/755 and Kernel test10..
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Hey,

I've been working on the 735 and 755 that I has access to and so far
the systems booted the test6 kernel, but scrambled the console as soon
as init was run.  So, I figured I'd try the new test10 kernel that you
have added.  Both system boot, and then stop at this line:

branching to kernel entry point 0x00100000
Can't select default wide mode, PDC_PSW call does not work

What does the above actually mean?  How can I remove the PDC_PSW call
from the kernel so it can boot? I have plans to test this new kernel
image on a 715 later today. 

Thanks,
-- 
Phillip Beal
Electrical and Computer Engineering
S+LUG Vice-President


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Subject: Re: [parisc-linux] 735/755 and Kernel test10..
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"Phillip D. Beal" wrote:
> Hey,
> 
> I've been working on the 735 and 755 that I has access to and so far
> the systems booted the test6 kernel, but scrambled the console as soon
> as init was run.  So, I figured I'd try the new test10 kernel that you
> have added.  Both system boot, and then stop at this line:
> 
> branching to kernel entry point 0x00100000
> Can't select default wide mode, PDC_PSW call does not work

Did you build this kernel yourself?

If so, it sounds like you built a 64-bit kernel since that's the default.
You need to change the ARCH line in the linux/Makefile to read "parisc"
instead of "parisc64".

grant

> 
> What does the above actually mean?  How can I remove the PDC_PSW call
> from the kernel so it can boot? I have plans to test this new kernel
> image on a 715 later today. 
> 
> Thanks,
> -- 
> Phillip Beal
> Electrical and Computer Engineering
> S+LUG Vice-President
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Grant Grundler wrote:
> If so, it sounds like you built a 64-bit kernel since that's the default.

Correction. *was* the default.
default ARCH was changed last night to parisc.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Ian Zink <ian.zink@maryville.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Palinux on a 712/60
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I have a hp 712/60 I was trying to get loaded with Pa-linux. I'm using the
0.5 version of the Pa-linux cd. If I boot right off the CD it all loads
until it gets to Switching to PDC. At that point nothing happens. From I
have read the list, that is because the kernel is switching the text
console. However, the 712s don't have consoles. From what I have also read
the CD should work if you pass the kernel the parameter console=tty. So I
tried to  "boot scsi.2.0 isl" from the boot_admin prompt. It gave me the
PALO ISL, but I could not choose which line I wanted to edit. Further, I
couldn't even type "b" to boot. I don't know if the isl is freezing or what
is taking place
	What I am wondering is there a way to boot a 712/80 without having
to get cross-compiler gcc, compile the kernel, etc. Is there someway I could
add the ramdisk-sti.tgz on the ISO to make it work? If so, what would need
to be done?

Thanks,

Ian Zink, Systems Engineer
Maryville Technologies
540 Maryville Centre, Suite 300
St. Louis, MO  63141
636/519-4182
(FAX) 636/519-4141
ian.zink@maryville.com  
www.maryville.com



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bame@riverrock.org wrote:
> 
> = On Thu, Nov 09, 2000 at 03:53:48PM -0700, Paul Bame wrote:
> = >     Somebody never imported 2.4.0-test6, then I imported -test10 on the mai
> n
> = >     vendor branch and now can't (easily) undo that to import test6 and THEN
> = >     test10.  This workaround sucks.

If the sources on the linus branch have been religiously tagged every
time they're updated, then reverting to a previous would have been
relatively painless.  I'm not sure what "this workaround" was, but I
guess at this point test10 is merged so the point is moot.

> = don't use vendor branches.  didn't you talk to mang about this?
> 
> Um, I have no information to go on from your note.  All the (successful)
> merges I've done before have used the cookbook CVS merge method including
> a vendor branch.  Several (N-1?) of the palinux merges have been
> accompanied by updating the vendor branch.  And this merge is going
> well despite the ugly workaround, or so it appears to me.  Just
> importing files to a vendor branch should have no effect on anything
> else unless CVS has some horrible bug (RCS does not).  Before I make
> what is apparently a serious mistake ("don't use vendor branches" sounds
> pretty serious) please enlighten me!

Vendor branches are evil.  (When I say "vendor branch" I mean the
special kind of branch created by "cvs import".)  When you check in to a
vendor branch your changes will also be seen on the trunk, *unless* that
file has been previously modified on the trunk.  This is almost never
what you want and adds confusion during merging (when you least want
it).  Tracking third-party sources using a normal branch, as we are
doing, is much simpler and gives you more control.

When I did the original import of Linus' sources I converted the vendor
branch to a normal branch using cvs admin magic.  So none of the
annoyances of vendor branches should affect us, as long as any new files
are added on the linus branch using "cvs add", NOT "cvs import".

When you say you "I imported -test10 on the main vendor branch" I hope
you really mean that you used "cvs add" on the linus branch.  From your
other messages, your tags looked good.

	- Mike.


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= bame@riverrock.org wrote:
= > 
= > = On Thu, Nov 09, 2000 at 03:53:48PM -0700, Paul Bame wrote:
= > = >     Somebody never imported 2.4.0-test6, then I imported -test10 on the
 mai
= > n
= > = >     vendor branch and now can't (easily) undo that to import test6 and 
THEN
= > = >     test10.  This workaround sucks.
= 
= If the sources on the linus branch have been religiously tagged every
= time they're updated, then reverting to a previous would have been
= relatively painless.  I'm not sure what "this workaround" was, but I
= guess at this point test10 is merged so the point is moot.

Like the comment said, there was no copy of plain -test6 in CVS (that I
saw).  Without -test6 in CVS it's much harder to use cvs diff to figure
out the right way to merge files when there are conflicts.
I didn't realize this until -test10 was already there, so I *then*
brought in -test6.  They're in the wrong order on the 1.1.1 branch, so
the standard merge command 'cvs -jlinus:yesterday -jlinus:<newest>'
won't work next time -- explicit names will be required.

= Vendor branches are evil.  (When I say "vendor branch" I mean the
= special kind of branch created by "cvs import".)  When you check in to a
= vendor branch your changes will also be seen on the trunk, *unless* that
= file has been previously modified on the trunk.

Thanks for clarifying what "evil" means!  That is pretty ugly indeed!

= This is almost never
= what you want and adds confusion during merging (when you least want
= it).  Tracking third-party sources using a normal branch, as we are
= doing, is much simpler and gives you more control.

But I've seen no cook book for it.  I'm guessing that instead of cvs import
you use:
	cvs co -rlinus linux
	<unpack new linux bits on top of linux>
	cd linux
	cvs commit (make note of new files from commit)
	cvs add <new files>
	cvs commit
	cvs tag LINUS_NEW_REVISION
perhaps with provision for removing obsolete files too.  I suppose that is
simpler than a single cvs import command from a certain perspective :-)

= When I did the original import of Linus' sources I converted the vendor
= branch to a normal branch using cvs admin magic.  So none of the
= annoyances of vendor branches should affect us, as long as any new files
= are added on the linus branch using "cvs add", NOT "cvs import".

Have you a pointer to the magic or the knowledge to recreate it?  I
had no idea there was a special RCS marking for the evil type of branch.

= When you say you "I imported -test10 on the main vendor branch" I hope
= you really mean that you used "cvs add" on the linus branch.  From your
= other messages, your tags looked good.

I used "cvs import", and either your branch magic worked, or I finished the
merge before anybody randomly updated from cvs.  Since import used 1.1.1,
which is the branch you "fixed", it seems possible that 'cvs import' might
be rendered harmless but I don't know that for sure.

	-P


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This is to answer all the questions about sti console.  Currently, in the
CVS tree, serial console and STI console cannot be turned on at the same time.

This means that a choice between serial/sti needs to be done at compile
time.  At the time we cut the beta, it was decided that serial console was
more important than sti console.  I am also working on resolving the problem
with STI/serial console and once I have a fix ready, I will make a kernel
image available.  The current beta CD is also expecting a console on
ttyS0 and does not currently open a ttyx getty.  When I have a kernel
that can decide the console at runtime, I will look into the beta CD
issues.

If you have any more questions or suggestions, feel free to email me or
post on this list.  Thank you.

						- Paul

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Sounds like a plan to me. I don't suppose you know how to make a 715 
boot to console? Pulling the keyboard and monitor cables off the back
just make it stop at boot with the unable to initiliaze keyboard error
I posted with earlier. I am assuming there is some sort of boot_admin
trickery necessary, but I am unaware of what it might entail and my poking
around has yielded nothing.. 

Any advice here would be much appreciated.

-b

Quoting Paul J.Y. Lahaie (pjlahaie@linuxcare.com) from 14 November 2000:
> with STI/serial console and once I have a fix ready, I will make a kernel
> image available.  The current beta CD is also expecting a console on
..
> If you have any more questions or suggestions, feel free to email me or
> post on this list.  Thank you.


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Xref: news.gmane.org gmane.linux.ports.parisc:8420

> > Breakpoint 2, eliminate_regs_in_insn (insn=0x406a0ba0, replace=0)
> >     at ../../gcc/reload1.c:2826
> > 2826      if (! insn_is_asm && icode < 0)
> > (gdb) p debug_rtx (insn)
> > (insn/s 2711 2709 2719 (set (reg:SI 6 %r6)
> >         (reg:SI 28 %r28)) 69 {pre_ldw-4} (insn_list 2708 (insn_list:REG_DEP_ANTI 2696 (insn_list:REG_DEP_ANTI 2702 (insn_list:REG_DEP_ANTI 2697 (nil)))))
> >     (expr_list:REG_DEAD (reg:SI 28 %r28)
> >         (insn_list:REG_RETVAL 2708 (expr_list:REG_EQUAL (expr_list (use (mem:BLK (scratch) 0))
> >                     (expr_list (symbol_ref/v:SI ("@strlen"))
> >                         (expr_list (reg/v:SI 4 %r4)
> >                             (nil))))
> >                 (nil)))))
> 
> The `use' arises from the `__pure__' attribute in the prototype for strlen:
> 
> extern size_t strlen (__const char *__s) __attribute__ ((__pure__));

Here is a patch to fix the abort in eliminate_regs when it encounters a USE.
As I understand the situation, there are three conditions needed to trigger
it:

1)	A function that contains insns with an eliminable register.
2)	The function must call __builtin_alloca to change the frame size
	from its initial size.
3)	After the call to __builtin_alloca, there must be a call to a
	pure function.

With the enclosed patch, I can now build glibc for hppa-linux with -O3
optimisation.

Please review carefully because I will be the first to admit that I don't
understand why the use is there in the first place and all the details of
what eliminate_reg does.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2000-11-14  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* reload1.c (eliminate_regs): Don't abort on MEM USEs.

--- reload1.c.orig	Wed Sep 27 14:27:23 2000
+++ reload1.c	Tue Nov 14 16:01:56 2000
@@ -2499,6 +2499,10 @@
 	return x;
 
     case USE:
+      /* Handle insn_list USE that a call to a pure functions may generate. */
+      new = eliminate_regs (XEXP (x, 0), 0, insn);
+      if (GET_CODE (new) == MEM)
+	return XEXP (new, 0);
     case CLOBBER:
     case ASM_OPERANDS:
     case SET:


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Palinux on a 712/60
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Ian Zink wrote:
> I have a hp 712/60 I was trying to get loaded with Pa-linux. I'm using the
> 0.5 version of the Pa-linux cd. If I boot right off the CD it all loads
> until it gets to Switching to PDC. At that point nothing happens. From I
> have read the list, that is because the kernel is switching the text
> console. However, the 712s don't have consoles.

712s have consoles. They have two outputs which can be used as
console by linux. The STI consoles (VGA-like spigot) and serial.
Connect a serial cable 9600-8-n-1 and run minicom at the other end.

>  From what I have also read
> the CD should work if you pass the kernel the parameter console=tty. So I
> tried to  "boot scsi.2.0 isl" from the boot_admin prompt. It gave me the
> PALO ISL, but I could not choose which line I wanted to edit. Further, I
> couldn't even type "b" to boot. I don't know if the isl is freezing or what
> is taking place

That's a different problem...pb?

> 	What I am wondering is there a way to boot a 712/80 without having
> to get cross-compiler gcc, compile the kernel, etc.

The CD was intended to also work on the 712 even though we may not have
tested on it.

> Is there someway I could
> add the ramdisk-sti.tgz on the ISO to make it work? If so, what would need
> to be done?

no clue. anyone else?

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Paul Bame wrote:
> 
> = bame@riverrock.org wrote:
> = >
> = > = On Thu, Nov 09, 2000 at 03:53:48PM -0700, Paul Bame wrote:
> = > = >     Somebody never imported 2.4.0-test6, then I imported -test10 on the
>  mai
> = > n
> = > = >     vendor branch and now can't (easily) undo that to import test6 and
> THEN
> = > = >     test10.  This workaround sucks.
> =
> Like the comment said, there was no copy of plain -test6 in CVS (that I
> saw).  Without -test6 in CVS it's much harder to use cvs diff to figure
> out the right way to merge files when there are conflicts.
> I didn't realize this until -test10 was already there, so I *then*
> brought in -test6.  They're in the wrong order on the 1.1.1 branch, so
> the standard merge command 'cvs -jlinus:yesterday -jlinus:<newest>'
> won't work next time -- explicit names will be required.

The best thing to do is to import -test10 again and move the static tag
by re-tagging.

> = Tracking third-party sources using a normal branch, as we are
> = doing, is much simpler and gives you more control.
> 
> But I've seen no cook book for it.  I'm guessing that instead of cvs import
> you use:
>         cvs co -rlinus linux
>         <unpack new linux bits on top of linux>
>         cd linux
>         cvs commit (make note of new files from commit)
>         cvs add <new files>
>         cvs commit
>         cvs tag LINUS_NEW_REVISION
> perhaps with provision for removing obsolete files too.  I suppose that is
> simpler than a single cvs import command from a certain perspective :-)

I had a good chat with Paul about this, and we worked out that using
"import" is marginally better.

This is what the add/remove method would look like:
cvs co -rlinux linux
<unpack new linux bits>
<rm files in dir not in tarball>
cvs rm <rm'ed files>
cvs add <new files>
cvs commit
cvs tag LINUS_NEW_REVISION

Add the import method:
<unpack new linux bits>
cd linux
cvs import linux linus LINUS_NEW_REVISION
cvs admin -b <new files>

> = When you say you "I imported -test10 on the main vendor branch" I hope
> = you really mean that you used "cvs add" on the linus branch.  From your
> = other messages, your tags looked good.
> 
> I used "cvs import", and either your branch magic worked, or I finished the
> merge before anybody randomly updated from cvs.  Since import used 1.1.1,
> which is the branch you "fixed", it seems possible that 'cvs import' might
> be rendered harmless but I don't know that for sure.

Using "import" to bring in new files taints them with the vendor branch
badness.  These files should be adjusted using "cvs admin -b".  Note
that "cvs admin" works directly on files in the repository at low level
(without any revisioning of changes) and is thus to be avoided if at all
possible.  Please don't run "cvs admin" if you (the collective "you")
don't know the consequences.

	- Mike.


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Thanks for the reply, Grant. However, the 712s do not have a serial console.
They do have a com port, but it does not work as a console, unfortunately.
So I need do need to get a STI enabled kernel. I dropped Paul Lahaie a note
to see if he could send me such a kernel so I do not have to create the
entire cross-platform development environment just to boot one of these
712s. After I get it, I plan on expanding the 0.5 iso and making a new one
using the STI console kernel.

Ian


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Cc: Grant Grundler <grundler@cup.hp.com>,
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To: Paul Bame <bame@noam.fc.hp.com>
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I have booted HP A class server through network. On that I have repartioned 
the system and followed the steps on http://www.parisc-linux.org/install.html.
I have used the following command to initialize the hard disk. The kernel I 
have downloaded is vmlinux-20001018. and cpied it to /mnt/boot/vmlinux 
after mounting /dev/sda3. I have used the following command to initialize 
the HDD.

palo -I -k /boot/vmlinux -b /boot/iplboot \ -c '3/boot/vmlinux TERM=linux 
HOME=/ root=/dev/sda3' \ /dev/sda
--------------------------------
I get the following error:
--------------------------------
SOFT Boot.
palo ipl bame@noam Tue oct 31 14:18:02 MST 2000
0/vmlinux 2138614 bytes@ 0x1f78c000
0/palo-cmdline '3/boot/vmlinux TERM=linux HOME=/ root=/dev/sda3'
/dev/ida1	82	62		1030688
/dev/ida2	f0	1030750	24738
/dev/ida3	83	1055488	1030750
Kernel:partition 3 file /boot/vmlinux
ext2 block size 1024
ext2_mount(partition 3) returns 0
ext2_open(/boot/vmlinux) = -1
open /boot/vmlinux failed
-------------------------------------
Please suggest.


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Ian Zink wrote:
> Thanks for the reply, Grant. However, the 712s do not have a serial console.
> They do have a com port, but it does not work as a console, unfortunately.

It does for linux. That's what the "Switching from PDC Console" is about.
Connect the serial cable to the com port and look at the output.
I've done it in the past and know it worked at least once.
I haven't tried it with the lasted ISO - no time to play w/712's now.

> So I need do need to get a STI enabled kernel. I dropped Paul Lahaie a note
> to see if he could send me such a kernel...

Paul just sent mail to the list indicating he's working on console issues.
Please let him work on it.
Trust me, he'll tell us when he's done. :^)

grant


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Alex deVries wrote:

> dhazeghi@pacbell.net wrote:
> > However I would like to know what work if any has been done on the SOM
> > linker which HP released to the public last November(?). It seems that
> > as of right now, it has not been touched since February 14, and the FSF
> > binutils snapshots still do not have any SOM support for ld. Has there
> > been any movement in merging this in, or is anybody working on this?
>
> The initial plan was to do our 32-bit userspace with SOM, worrying about
> ELF32 much later in the game.  But ELF32 development happened a lot
> quicker than expected, and so nobody's really done much on the SOM
> linker.

That's what it looked like...

>
>
> I suspect it'd be very hard to use the SOM linker code to incorporate it
> into binutils, but I could be wrong.
>
> What are you actually trying to do?

I would like to be able to set up a cross compilation environment for hpux and
32 bit PA-RISC. However without a functional cross linker, this is impossible
to do, and as binutils has not got one yet, I thought perhaps the one that HP
open-sourced might be some use. It would seem logical that with the sources
available, it shouldn't be too difficult to fix the broken bits and get a SOM
linker working in binutils, but that doesn't seem to have happened yet. Oh
well, thanks for the info...

Dara Hazeghi


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Xref: news.gmane.org gmane.linux.ports.parisc:8427

> I would like to be able to set up a cross compilation environment for hpux and
> 32 bit PA-RISC. However without a functional cross linker, this is impossible
> to do, and as binutils has not got one yet, I thought perhaps the one that HP
> open-sourced might be some use. It would seem logical that with the sources
> available, it shouldn't be too difficult to fix the broken bits and get a SOM
> linker working in binutils, but that doesn't seem to have happened yet. Oh
> well, thanks for the info...

You should be able to build cross compilation tools under hpux for hppa-linux.
First you should install native versions of binutils and gcc under hpux (this
assumes that you have the hpux C compiler and linker).  The release version of
gcc (2.95.2) would be a good choice.  The standard hpux linker works fine with
gcc/gas for C compilations.  Then follow the directions at www.parisc-linux.org
for building the cross compilation tools and linux.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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John David Anglin wrote:

> > I would like to be able to set up a cross compilation environment for hpux and
> > 32 bit PA-RISC. However without a functional cross linker, this is impossible
> > to do, and as binutils has not got one yet, I thought perhaps the one that HP
> > open-sourced might be some use. It would seem logical that with the sources
> > available, it shouldn't be too difficult to fix the broken bits and get a SOM
> > linker working in binutils, but that doesn't seem to have happened yet. Oh
> > well, thanks for the info...
>
> You should be able to build cross compilation tools under hpux for hppa-linux.
> First you should install native versions of binutils and gcc under hpux (this
> assumes that you have the hpux C compiler and linker).  The release version of
> gcc (2.95.2) would be a good choice.  The standard hpux linker works fine with
> gcc/gas for C compilations.  Then follow the directions at www.parisc-linux.org
> for building the cross compilation tools and linux.

This is not precisely what I mean. What I should have said is that I want to create
a cross compiler --host=i686-linux --target=hppa-hpux. I asked this list, because
you folks did some work on the SOM linker, which is at the moment the missing piece
for a cross toolchain which targets hpux.

Thanks,

Dara

P.S. On a different note, is the recipe fully up to date? I tried following it a
few weeks ago, but glibc did not complete building successfully.


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From: Arnaud.ATOCH@oecd.org
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Palinux on a 712/60
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Hi,

I got a couple of 715 and I'd love having access to an ISO image with STI
console kernel too.

-----Original Message-----
From: Ian Zink [mailto:ian.zink@maryville.com]
Sent: Wednesday, November 15, 2000 00:09
To: 'parisc-linux@thepuffingroup.com'
Subject: RE: [parisc-linux] Palinux on a 712/60 


Thanks for the reply, Grant. However, the 712s do not have a serial console.
They do have a com port, but it does not work as a console, unfortunately.
So I need do need to get a STI enabled kernel. I dropped Paul Lahaie a note
to see if he could send me such a kernel so I do not have to create the
entire cross-platform development environment just to boot one of these
712s. After I get it, I plan on expanding the 0.5 iso and making a new one
using the STI console kernel.

Ian

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Justin Maurer wrote:
> 
> > > puffin, is binutils-x-hppa ok?
> >
> > binutils-x-parisc, no?
> 
> oops :) yes, that is what i used. is it the proper label?

To the best of my meagre knowledge, yes.

Mike

-- 
242120.15 234824.91


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On Tue, Nov 14, 2000 at 08:10:42AM -0800, Grant Grundler wrote:
> The bug is normal for card-mode Dino - not for Built-in Dino.
> I think Helge has the GSC 100BT card which is a card-mode Dino on-board
> with one (or two) Tulip(s) behind it.
> 
> The warning is a reminder one can NOT use MMIO accesses to those
> PCI devices and *only* I/O Port space (eg inb/outb).
> 
> If someone wants to fix the warning so it's quiet for card-mode
> devices...see is_card_dino(d) in dino_driver_callback() for an
> example.
> 
> FYI - card-mode dino was used for several different networking
> interfaces but not SCSI interfaces.

But Helge has problems with the sym53c8xx driver on a B160L.  Is
that a PCI card driven via Dino?  And if so, are you saying he needs
to build his kernel with CONFIG_SCSI_NCR53C8XX_IOMAPPED=y so it
doesn't try to use MMIO?

Helge, it might be worth trying to switch on CONFIG_SCSI_NCR53C8XX_IOMAPPED
anyway just to see what happens.  Otherwise someone needs to start
adding printk debug to figure out what is happening.  I can't do
that as I don't have a sym53c8xx pci card.

Richard


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From: Andrew Shugg <andrew@neep.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Palinux on a 712/60
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Arnaud.ATOCH@oecd.org said:
> Hi,
> 
> I got a couple of 715 and I'd love having access to an ISO image with STI
> console kernel too.

I've never made an El Torito CDROM, is it possible to have multiple boot
images and a boot loader on a single disc?  ie could the actual boot
image be a boot loader (PALO) which then points at one or more kernels
on the CDROM?

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


From - Thu Nov 08 21:14:06 2018
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From: "Thomas Marteau" <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] Palinux on a 712/60
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To: "Ian Zink" <ian.zink@maryville.com>, <parisc-linux@thepuffingroup.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:8433

Hi Ian,

    If you like to see a linux kernel booting on your 712, you can donwload
a fully operationnal root file system with the STI console and an extra
terminal with
the RS232 port at
http://www.esiee.fr/puffin

You have also all the info to make a bootable hard disk so try it and give
us feedback...

Bye,
Thomas Marteau
ESIEE Team


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Beta CD
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To: "Paul J.Y. Lahaie" <pjlahaie@linuxcare.com>
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On Fri, Nov 10, 2000 at 05:14:06PM -0500, Paul J.Y. Lahaie wrote:
> Hello fellow PA-RISCers,
> 
> An preliminary beta CD for PA/Linux has been uploaded to
> puffin.external.hp.com.  If people could try it and forward any complaints
> or suggestions to me, it would be greatly appreciated.  The URL for the
> image is: ftp://puffin.external.hp.com/pub/parisc/cd-images/palinux-0.5.iso.gz

I just borrowed a CDROM drive for my 715/75 so I could try
it on there [Actually this is the palinux-0.5.iso.gz that I
commented on, not the final version].  I wasn't successful:

Sometimes the boot hangs after "ASP version 1 at 0xf0800000 found",
waits a few seconds and then HPMCs.

The scsi driver always has serious problems with the CD drive
but does detect other devices on the bus.

The kernel always crashes after "Serial driver version 5.01...",
(if it gets that far) with

Data access rights fault in kernel: Code=26 regs=c5f9c940 (Addr=00000003)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001010
r0-3     00000000 c0217800 c011e9f8 c5ff64a0
r4-7     c5ff6200 c023ab20 00000008 f0823800
r8-11    00000003 00000007 c019134c c02b20a0
r12-15   fffffffc c023a800 c023a800 c02c31cc
r16-19   c023a800 c023a800 c02b2024 00000000
r20-23   c5ff6234 f0823807 f0823800 0000000a
r24-27   ffffffff c5ff64a0 c5ff6200 c0258000
r28-31   ffffffff 000002c0 c5f9cb80 c012dfc0
sr0-4    00000000 00000000 00000000 00000000
sr4-8    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c011e710 c011e714
 IIR: 0f881093    ISR: 00000000  IOR: 00000003
ORIG_R28: 00000058


I'll investigate further when I have the time.

Richard


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] dino maintainer?
Date: Wed, 15 Nov 2000 11:50:27 -0500
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To: Richard Hirst <rhirst@linuxcare.com>
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Richard Hirst wrote:
> On Tue, Nov 14, 2000 at 08:10:42AM -0800, Grant Grundler wrote:
> > FYI - card-mode dino was used for several different networking
> > interfaces but not SCSI interfaces.
> 
> But Helge has problems with the sym53c8xx driver on a B160L.  Is
> that a PCI card driven via Dino?  And if so, are you saying he needs
> to build his kernel with CONFIG_SCSI_NCR53C8XX_IOMAPPED=y so it
> doesn't try to use MMIO?

Hang on a sec... what Grant's saying is that *card-mode* dino is never
used for SCSI controllers, but on the B160L it would probably be
*chip-mode* dino.

Does this mean that all GSC SCSI expansion cards are Zalon based?

So what Helge has isn't a PCI card specifically, Dino and the 53c8xx are
all on the motherboard.

Does Dino handle IO memory mapping differently for chip or card mode?

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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Richard Hirst wrote:
> On Tue, Nov 14, 2000 at 08:10:42AM -0800, Grant Grundler wrote:
> > The bug is normal for card-mode Dino - not for Built-in Dino.
> > I think Helge has the GSC 100BT card which is a card-mode Dino on-board
> > with one (or two) Tulip(s) behind it.

Helge confirmed he has no such card.
I think the PDC simply isn't programming the Dino IO_ADDR_EN
since there are no PCI devices in his B160.

Helge's B160 has a old rev of Dino PCI host bus adapter chip.
It's possible to have "silent" data corruption caused by older
revs of dino - 3.0 and older.
The latest PDC Revisions (5.x and later) know this and won't permit
the system to be booted unless the only devices on the PCI bus are
known graphics interface cards.

> > The warning is a reminder one can NOT use MMIO accesses to those
> > PCI devices and *only* I/O Port space (eg inb/outb).
> > 
> > If someone wants to fix the warning so it's quiet for card-mode
> > devices...see is_card_dino(d) in dino_driver_callback() for an
> > example.

This is still correct for card-mode dino.

> > FYI - card-mode dino was used for several different networking
> > interfaces but not SCSI interfaces.
> 
> But Helge has problems with the sym53c8xx driver on a B160L.  Is
> that a PCI card driven via Dino? 

I doubt it now. If Helge could send richard "in io" output, I think
that would clarify what's in the B160.

> And if so, are you saying he needs
> to build his kernel with CONFIG_SCSI_NCR53C8XX_IOMAPPED=y so it
> doesn't try to use MMIO?

no. no SCSI was ever implement on a card-mode dino board.
No reason to since they already had Zalon or open slots.

grant

> Helge, it might be worth trying to switch on CONFIG_SCSI_NCR53C8XX_IOMAPPED
> anyway just to see what happens.  Otherwise someone needs to start
> adding printk debug to figure out what is happening.  I can't do
> that as I don't have a sym53c8xx pci card.
> 
> Richard


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Alex deVries wrote:
> Hang on a sec... what Grant's saying is that *card-mode* dino is never
> used for SCSI controllers, but on the B160L it would probably be
> *chip-mode* dino.

No such thing - you probably mean "Bridge Mode" and that's what
the built-in Dino is using.

> Does this mean that all GSC SCSI expansion cards are Zalon based?
>
> So what Helge has isn't a PCI card specifically, Dino and the 53c8xx are
> all on the motherboard.
> 
> Does Dino handle IO memory mapping differently for chip or card mode?

yes. yes. yes (conditional).

"IO memory mapping" is a confusing term. I'll assume you mean MMIO.
(Memory Mapped I/O)

MMIO space access is independent of I/O Port space access.
MMIO space access simple isn't available for card-mode Dino since
niether PDC nor the OS assigns host physical address space to the
card-mode Dino (that's what IO_ADDR_EN is for). PDC does this
for Bridge-mode dino (built-in) - but apperently only when it needs
to.

I/O Port space accesses are done the same way for both modes.
I/O Port space access is implemented by poking registers on Dino.

Read the Dino Spec (or source) for more details.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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> This is not precisely what I mean. What I should have said is that I want to create
> a cross compiler --host=i686-linux --target=hppa-hpux. I asked this list, because
> you folks did some work on the SOM linker, which is at the moment the missing piece
> for a cross toolchain which targets hpux.

This also may be possible.  The first step would be to copy the hpux headers
to a i686-linux system and see if you can build the HP linker.  The next
step would be to try to build the cross binutils tools.  I know this
requires the hpux headers and likely some hacking would be required to
get it to build.

The linker is probably the hard part.  There may be byte ordering issues
and bugs in what HP contributed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Fri, Nov 10, 2000 at 05:14:06PM -0500, Paul J.Y. Lahaie wrote:
> Hello fellow PA-RISCers,
> 
> An preliminary beta CD for PA/Linux has been uploaded to
> puffin.external.hp.com.  If people could try it and forward any complaints
> or suggestions to me, it would be greatly appreciated.  The URL for the
> image is: ftp://puffin.external.hp.com/pub/parisc/cd-images/palinux-0.5.iso.gz
> 
> 					- Paul
the CD worked great on the 715 I tried, and I actually didn't have a
serial console machine, so I used my Palm Pilot and a link cable.  Still
worked like a charm.  How did you get the kernel image into the boot
sector of the CD?  I'd like to try to build some CD's of the kernels I'm
building to test in some mahcines that are not on the same network as
the machine that I'm building everything from.

And I don't mind posting my CD images somewhere if they work...but most
of my testing is on a 735 or 755. 

Thanks,
-- 
Phillip Beal
Electrical and Computer Engineering
S+LUG Vice-President


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From: Paul Bame <bame@noam.fc.hp.com>
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Subject: [parisc-linux] Help with posix_types.h
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I'm reviewing the posix_types.h to figure out what's right for 64-bit
linux.  I know others may have thought through this before so I'm hoping
for guidance.  For those unfamiliar, the type names in posix_types.h
are like __kernel_dev_t and usually are used to define the corresponding
"normal" type (dev_t).  These should be settled before the 32/64
syscall wrappers can be completed.

__kernel_ino_t: often 32 bits, currently 32 bits for parisc and som3
	64-bit kernels (mips64 and ia64).  64 bits on alpha and sparc64.

	Seems to me this ought to be 32 bits on parisc and parisc64, or
	64 bits on both, since it's a function of file system sizes not
	processor width.  HPUX kernel seems to always use 32 bits, but
	64-bit userspace uses 64 bits.  I propose 32 bits on both, but
	willy had selected 64 bits in parisc64 for some reason.

__kernel_off_t: seems to be 32 bits on 32-bit cpus, 64 on 64-bit ones.
	This is supposedly the offset from a beginning of a file.
	HPUX appears to use 64-bits *in the kernel* for both 32 and
	64-bit kernels.

	The obvious pattern is to make ours 32 on narrow, and 64 on
	wide palinux so I guess I propose that, and that's the way
	it was before I hacked on it too.
	Should we consider switching to 64 bits on narrow
	palinux since this is related to file systems, not CPUs.

	Note there's also a __kernel_loff_t -> loff_t which appears
	to be defined as 64 bits.  I'm not sure how this does/should
	interact with off_t (lseek vs lseek64 for example).

__kernel_suseconds_t: which becomes suseconds_t which is used in
	struct timeval {
		time_t          tv_sec;         /* seconds */
		suseconds_t     tv_usec;        /* microseconds */
	};

	I'm confused why hpux, and other systems,
	like for this to be 'long' (e.g., 64 bits on 64-bit processors)
	since it seems like values over a million are probably rare
	and 32 bits seems to be enough for most implementations.  sparc64
	chose 32 bits for this and I want to do the same for parisc64
	because it will reduce the amount of syscall structure repackings.
	Comments?

__kernel_daddr_t: which is used indirectly in struct solaris_x86_vtoc and
	solaris_x86_slice which *might* be an on-disk data structures
	(used with CONFIG_SOLARIS_X86_PARTITION).  So this needs to
	be 32 bits if that's the case (definition from sparc) and several
	archs have it 64 bits!

	On the other hand, HPUX's man page says 'daddr_t used for disk
	addresses except in an inode [and partition table I would think]
	on disk'.  So it should probably be the same
	type as off_t.  FYI the only other place it's used is in
	'struct mtio' -- used to talk to magnetic tape units.

	I'm guessing the sparc struct should not be using this type,
	and that we should define it the same as off_t.  Comments?


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On Tue, 20 Apr 1999, Mike Shaver wrote:
> justin@puffin.external.hp.com wrote:
> > puffin, is binutils-x-hppa ok?
> binutils-x-parisc, no?

I'd say call it binutils-x-hppa-linux until we can actually have a target
called parisc-linux.  I am just about done with those fixes to binutils,
though.

- Alex


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From: Kailashnath V Rampure <kailasr@webcash.com>
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Subject: Re: [parisc-linux] Boot command
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Yes Thomas the vmlinux is in /boot of 3rd partition as the other partitions 
are swap and f0.

At 11:48 AM 11/15/00 +0100, Thomas Marteau wrote:

>----- Original Message -----
>From: Kailashnath V Rampure <kailasr@webcash.com>
>To: Paul Bame <bame@noam.fc.hp.com>
>Cc: Grant Grundler <grundler@cup.hp.com>; Matt Taggart
><taggart@carmen.fc.hp.com>; <parisc-linux@thepuffingroup.com>
>Sent: Tuesday, November 14, 2000 11:58 PM
>Subject: Re: [parisc-linux] Boot command
>
>
> > I have booted HP A class server through network. On that I have
>repartioned
> > the system and followed the steps on
>http://www.parisc-linux.org/install.html.
> > I have used the following command to initialize the hard disk. The kernel
>I
> > have downloaded is vmlinux-20001018. and cpied it to /mnt/boot/vmlinux
> > after mounting /dev/sda3. I have used the following command to initialize
> > the HDD.
> >
> > palo -I -k /boot/vmlinux -b /boot/iplboot \ -c '3/boot/vmlinux TERM=linux
> > HOME=/ root=/dev/sda3' \ /dev/sda
>
>This means that vmlinux must be in /boot in your third partition on your
>disk.
>Is it true in your case?
>
> > --------------------------------
> > I get the following error:
> > --------------------------------
> > SOFT Boot.
> > palo ipl bame@noam Tue oct 31 14:18:02 MST 2000
> > 0/vmlinux 2138614 bytes@ 0x1f78c000
> > 0/palo-cmdline '3/boot/vmlinux TERM=linux HOME=/ root=/dev/sda3'
> > /dev/ida1 82 62 1030688
> > /dev/ida2 f0 1030750 24738
> > /dev/ida3 83 1055488 1030750
> > Kernel:partition 3 file /boot/vmlinux
> > ext2 block size 1024
> > ext2_mount(partition 3) returns 0
> > ext2_open(/boot/vmlinux) = -1
> > open /boot/vmlinux failed
> > -------------------------------------
> > Please suggest.
> >
> > --------------------------------------------------------------------------
>-
> > To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com
>with
> > `unsubscribe' as the subject.
> >
> >


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= How did you get the kernel image into the boot
= sector of the CD?  I'd like to try to build some CD's of the kernels I'm
= building to test in some mahcines that are not on the same network as
= the machine that I'm building everything from.

The magic for making bootable CDs is documented in the PALO README.html
which you have on your system already since you're building kernels.

	-P


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From: "Thomas Marteau" <marteaut@esiee.fr>
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Xref: news.gmane.org gmane.linux.ports.parisc:8444

Hi again,

    You put the swap partition before the f0 partition and here it is the f0
partition in first position.
    Also, your hard disk is ida instead of sda, what's that ?

Bye,

ESIEE Team
----- Original Message -----
From: Kailashnath V Rampure <kailasr@webcash.com>
To: Thomas Marteau <marteaut@esiee.fr>
Cc: <parisc-linux@puffin.external.hp.com>
Sent: Wednesday, November 15, 2000 6:55 PM
Subject: Re: [parisc-linux] Boot command


> Yes Thomas the vmlinux is in /boot of 3rd partition as the other
partitions
> are swap and f0.
>
> At 11:48 AM 11/15/00 +0100, Thomas Marteau wrote:
>
> >----- Original Message -----
> >From: Kailashnath V Rampure <kailasr@webcash.com>
> >To: Paul Bame <bame@noam.fc.hp.com>
> >Cc: Grant Grundler <grundler@cup.hp.com>; Matt Taggart
> ><taggart@carmen.fc.hp.com>; <parisc-linux@thepuffingroup.com>
> >Sent: Tuesday, November 14, 2000 11:58 PM
> >Subject: Re: [parisc-linux] Boot command
> >
> >
> > > I have booted HP A class server through network. On that I have
> >repartioned
> > > the system and followed the steps on
> >http://www.parisc-linux.org/install.html.
> > > I have used the following command to initialize the hard disk. The
kernel
> >I
> > > have downloaded is vmlinux-20001018. and cpied it to /mnt/boot/vmlinux
> > > after mounting /dev/sda3. I have used the following command to
initialize
> > > the HDD.
> > >
> > > palo -I -k /boot/vmlinux -b /boot/iplboot \ -c '3/boot/vmlinux
TERM=linux
> > > HOME=/ root=/dev/sda3' \ /dev/sda
> >
> >This means that vmlinux must be in /boot in your third partition on your
> >disk.
> >Is it true in your case?
> >
> > > --------------------------------
> > > I get the following error:
> > > --------------------------------
> > > SOFT Boot.
> > > palo ipl bame@noam Tue oct 31 14:18:02 MST 2000
> > > 0/vmlinux 2138614 bytes@ 0x1f78c000
> > > 0/palo-cmdline '3/boot/vmlinux TERM=linux HOME=/ root=/dev/sda3'
> > > /dev/ida1 82 62 1030688
> > > /dev/ida2 f0 1030750 24738
> > > /dev/ida3 83 1055488 1030750
> > > Kernel:partition 3 file /boot/vmlinux
> > > ext2 block size 1024
> > > ext2_mount(partition 3) returns 0
> > > ext2_open(/boot/vmlinux) = -1
> > > open /boot/vmlinux failed



From - Thu Nov 08 21:14:07 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Help with posix_types.h
Date: Wed, 15 Nov 2000 13:09:49 -0500 (EST)
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To: bame@noam.fc.hp.com (Paul Bame)
Original-X-From: dave@hiauly1.hia.nrc.ca  Wed Nov 15 11:09:06 2000
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Xref: news.gmane.org gmane.linux.ports.parisc:8445

The largest disk currently available I believe is the 180GB Seagate Baracuda.
The size of drives is increasing about a factor of 2 per year.  The
__kernel_off_t definitely needs to be 64 bits to handle large drives
in both 32 and 64 bit systems.  Disk blocks are typically 512 or 1024 bytes.
Thus, drives may exceed 4GB disk blocks in 3-4 years.  Inodes are variable
in size (8KB average).  Thus, we are a little further away from exceeding
the 32 bit inode limit.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Paul Bame <bame@noam.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot command
Date: Wed, 15 Nov 2000 11:12:57 -0700
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References: <Your message of "Fri, 03 Nov 2000 11:46:39 PST." <5.0.0.25.0.20001103114401.00a46150@mail.webcash.com><Your message of "Fri, 03 Nov 2000 11:03:23 PST." <5.0.0.25.0.20001102174648.02a4fb20@mail.webcash.com><5.0.0.25.0.20001103114401.00a46150@mail.webcash.com><5.0.0.25.0.20001114142101.00a69910@mail.webcash.com> <5.0.0.25.0.20001115095344.01f15cb0@mail.webcash.com>  <007c01c04f2f$6679f620$a832d793@esiee.fr>
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To: "Thomas Marteau" <marteaut@esiee.fr>
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             <007c01c04f2f$6679f620$a832d793@esiee.fr> 
Xref: news.gmane.org gmane.linux.ports.parisc:8446

=     You put the swap partition before the f0 partition and here it is the f0
= partition in first position.

The partition order doesn't matter so long as the f0 partition and
the partition containing your kernel (an ext2 partition) *end* within
the first 2Gb of the disk.  See the PALO README.html.

=     Also, your hard disk is ida instead of sda, what's that ?

PALO lists the devices as 'ida' instead of 'sda' or 'hda' since it
is using the firmware 'IODC' interface to talk to the boot device,
and it has no idea what type of boot device IODC is providing.

	-P


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Single-stepping
Date: Wed, 15 Nov 2000 18:48:08 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:8447

(Oops, CC-ed to the wrong list first time!)

Hi John,
  I've been helping Alan Modra out with kernel changes to support
single stepping for gdb.  Paul Bame suggested I bounced our ideas
off you in case you (or anyone else) had any comments.  I havn't
actually committed my changes yet.

The basic approach is to use the recovery counter to generate
a trap every instruction.  The scheme is complicated because a
suspended process may or may not return to user space via an RFI.

If it was suspended as a result of an interrupt then we can
simply set PSW bit R in the tasks saved registers and it will
get loaded by the RFI.  On every task switch I set the
recovery counter to 0, just in case the new process is being
single-stepped.

If a process is suspended during a syscall, then there is no
RFI on the return path to userland, and we have to handle things
differently.  I have changed the syscall return path such that
it loads the recovery counter with 3 before updating the PSW
with a value from the tasks saved registers.  If that PSW has
the R bit set, then the count of 3 will generate a trap on the
first instruction following the branch back to user space.
Note that PSW wasn't previously restored on the syscall return
path.

To avoid further complications of interrupts during the three
instructions when the recovery counter is decrementing, whenever
we set the R bit, we also clear the I bit to disable interrupts.

Nullified instructions are handled by the controlling process
manually moving the childs IAOQ over the instruction without
actually setting it running, because the recovery counter isn't
decremented for nullified instructions.

I need to do some more testing before committing this, but would
welcome any comments on the basic approach taken, areas I have
mis-understood, or problems with it that might not yet have
occurred to me.

Thanks,
  Richard


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From: Andreas Thienemann <andreas@bawue.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 250/1 doesn't boot but dumps stack
Date: Thu, 16 Nov 2000 20:20:41 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:8448

This is a multi-part message in MIME format.
--------------F7EF1B69F0A7C4C7DD54E27D
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi,

I recently got a D-Class HP900 250/1 (at least it says that on the label) and
tried to get the pa-risc port running on it.

So I got a CVS checkout and build the whole toolchain without any major
hassles.

The kernel, including NFS-ROOT, built also without any glitches.

But when I try to boot up this kernel it dumps stack right after initialising
the pty interfaces. (I already left out everything unnecessary, such as
parallel port support)

After that it complains about "Data acces rights fault in kernel: Code=26
regs=c7f98780 (Addr=000000004)" and some more data...

For the curious, the boot sequence is attached.

I hope someone can give me a clue what might be wrong...
Thanks,
 Andreas
--------------F7EF1B69F0A7C4C7DD54E27D
Content-Type: text/plain; charset=us-ascii;
 name="hp9000-capture"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="hp9000-capture"


Firmware Version  36.34

Duplex Console IO Dependent Code (IODC) revision 0

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------
      0       101 MHz   Active                 Functional          256 KB

  Central Bus Speed (in MHz)  :        101 

  Available memory (bytes)    :  134217728 
  Good memory required (bytes):   15245312 

  Primary boot path:    8/16/5.5   (dec)   
  Alternate boot path:  8/16/5.2   (dec)   
  Console path:         8/16/4.0   (dec)   
  Keyboard path:        8/16/7.0   (dec)   

Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


------- Main Menu -------------------------------------------------------------

        Command                         Description
        -------                         -----------
        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration [<command>]       Access Configuration menu/commands
        INformation [<command>]         Access Information menu/commands
        SERvice [<command>]             Access Service menu/commands

        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command > bo 8/16/6.0
Interact with IPL (Y or N)?> n

Booting... 
Network Station Address 0060b0-3c08d4

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl root@gate.ixs.com Wed Nov 15 14:08:22 CET 2000
0/vmlinux 2143238 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.168.1.1 '
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100120 first 00100000 n 4
Segment 0 load 00100000 size 1467884 mediaptr 0x1000
Segment 1 load 00268000 size 174520 mediaptr 0x168000
Segment 2 load 00294000 size 103180 mediaptr 0x193000
Segment 3 load 002b0000 size 8192 mediaptr 0x1ad000
branching to kernel entry point 0x00100120
Set default PSW W bit to 0
PDC Console Initialized
The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02dc000
start_parisc(0x504d6c,0x504d6c,0x0,0x0)
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.168.1.1 '
PALO initrd 0-0
model   00005890 00000481 00000000 00000002 778314c3 100000f0 00000004 0000008a 0000008a
vers    0000000d
cpuid   0000016d
CPUID vers 11 rev 13
Searching for devices in PDC firmware... processor hpa 0xfffa0000
a newer box...
Found devices:
1. UL 350 Lasi Core BA (11) at 0xffd00000, versions 0x2e, 0x0, 0x81, 0x0, 0x0
2. UL 350 Lasi Core RS-232 (10) at 0xffd05000, versions 0x2e, 0x0, 0x8c, 0x0, 0x0
3. UL 350 Core SCSI (10) at 0xffd06000, versions 0x2e, 0x0, 0x82, 0x0, 0x80
4. UL 350 Core LAN (802.3) (10) at 0xffd07000, versions 0x2e, 0x0, 0x8a, 0x0, 0x0
5. UL 350 Core Centronics (10) at 0xffd02000, versions 0x2e, 0x0, 0x74, 0x0, 0x0
6. UL 350 Core PC Keyboard (10) at 0xffd08000, versions 0x2e, 0x0, 0x84, 0x0, 0x0
7. UL 350 Core PC Keyboard (10) at 0xffd08100, versions 0x2e, 0x0, 0x84, 0x0, 0x0
8. UL 350 Core PC Floppy (10) at 0xffd0a000, versions 0x2e, 0x0, 0x83, 0x0, 0x0
9. UL 350 Core Wax BA (11) at 0xffe00000, versions 0x30, 0x0, 0x8e, 0x0, 0x0
10. UL 350 Wax EISA BA (11) at 0xfc000000, versions 0x30, 0x0, 0x90, 0x0, 0x0
11. UL 350 Wax Core RS-232 (10) at 0xffe02000, versions 0x30, 0x0, 0x8c, 0x0, 0x0
That's a total of 11 devices.
No CPUs reported by firmware - probing...
Found CPU at fffa0000
CPU(s): 1 x PA7200 (PCX-T') at 101.000000 MHz
Linux version 2.4.0-test10 (root@gate.ixs.com) (gcc version 2.96 20000925 (experimental)) #4 Wed Nov 15 19:06:49 CET 2000
free_bootmem(0x2dd000, 0x7d23000)
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.168.1.1 
trap_init
Calibrating delay loop... 100.76 BogoMIPS
Memory: 125568k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
Wax at 0xffe00000 found.
Wax: HIL Keyboard-NMI registered.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
Found i82596 at 0xffd07000, IRQ 87
early initialization of device eth0 is deferred
Initializing Lasi PS/2-keyboard port at 0xffd08000...
Support for Lasi PS/2-psaux not yet available !
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
lp0: using parport0 (interrupt-driven).

Dumping Stack from c7f98000 to c7f989c0:
8000 00000000 00000040 00000000 00000000 c027c32c 00000000 00000000 ffffffff
8020 00000001 00000000 00000000 00000000 00000000 00000000 ffffffff c027c244
8040 c027c244 00000031 c7f90000 c02b0000 c028160c 00000000 00000000 00000000
8060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 00000000
8080 00000000 c02b0000 c02b0000 c7f84000 00000000 00000000 c7f84098 c02b0098
80a0 00000000 c02cba18 00000000 c7f980ac c7f980ac c7f980b4 c01177f4 c7f98908
80c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
80e0 00000000 00000000 c7f98000 c011a5e4 00000000 0000000f 00000000 00000000
8100 00000024 00000000 00000033 00000000 00000000 00000000 00000000 00000000
8120 00000000 80000000 00000000 00000000 00000000 00000000 00000000 00000000
8140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
81a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
81c0 00000000 00000000 00000000 fffffeff 00000000 ffffffff 00000000 c027ceb8
81e0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 00800000 05000000
8200 00000000 ffffffff ffffffff ffffffff 00000800 00000800 00000400 00000400
8220 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 00007377 61707065
8240 72000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8260 00008000 c0269000 c0269000 c013de10 00010000 c7ffeba0 c022248c c0234898
8280 000000f0 c02db000 00000000 c0118cf0 c0269054 00008000 c0269000 c0269054
82a0 f0000068 f0000070 c027c000 c027c368 0000000b 00000024 0000003c 0000003e
82c0 c027c000 00000000 c01001dc 00000004 00000000 00000023 c02b61ef 00000000
82e0 c027c000 f0000070 f0000068 000000ff ffd05800 ffd05800 ffd05800 00000060
8300 ffffffff ffd05800 002b50c0 c0268000 00000000 00000000 c02b08c0 00000000
8320 000b0800 00000000 0000001f 00000000 0000001f 00000000 0000001f 00000000
8340 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8360 00000010 00000020 7f7fffff ffffffff 43ebebeb e0000000 00000000 00000000
8380 45e69c6a 25b7ea20 41800000 00000000 00000010 00000010 00000000 00000000
83a0 00000040 00000080 00000100 00000200 00000400 00000800 7fffffff 7fffffff
83c0 41000000 00000000 7fffffff 7fffffff 40800000 00000000 41000000 00000000
83e0 40300000 00000000 40200000 00000000 40200000 00000000 41800000 7fffffff
8400 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
8420 00000000 00000000 c7f98800 c0103cf4 00000000 00000000 00000000 00000000
8440 00000000 00000000 c0118ce0 c0118ce4 40800000 00000000 00282000 00000000
8460 c0281040 c0281064 00000000 c0281204 00000000 00000000 00000000 c7f98478
8480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
84a0 00000000 00000000 71894dcb e3642ec4 c6c85d89 8d90bb13 1b217627 3634591c
84c0 6c1e076a d84abb86 b095770d 612aee1b c2236964 8446d2c9 088da593 116dfe74
84e0 22ad49ba 452c2626 8a2ef91e c0103c48 28cd5128 51ec1702 a3ae9b56 475d36ad
8500 c7f98000 c028160c 00000000 76fd1fb2 ed8c8a36 db19146d b63228db 6c6451b7
8520 d8be163c b17c2c79 62f858f3 c01001f0 8b0c0969 161812d3 2c4690f4 58fb94ba
8540 b1819c26 6303384d c670c5c8 8ce18b91 19c31723 33f09b14 6797837a cf59b3a6
8560 9eb3674d 3d66ce9b 7abb2864 c0294ef4 ea01cb35 d403966b a8072cd7 500e59af
8580 00000000 c02b0000 81dead60 03bd5ac1 00000060 c027c35c c027c35c c025920c
85a0 7234ad2e e41fef0e c83fde1d c0294ea0 20ff7877 418845bc 83663e2a 06cc7c55
85c0 c02ad30c c02ad2cc 00000000 00000000 00000000 c7f985d4 c7f985d4 c7f985dc
85e0 c7f985dc c7f985e4 00000000 c0298ca0 00000000 c7f985d4 c7f985d4 c7f985dc
8600 c027e800 00000000 00000000 00000000 000000fa 000000f2 000000ff c0295514
8620 000000f0 c02cb800 c02b06c0 c0299814 c028160c c02ad30c c02ad2bc c028160c
8640 c02b06c0 c7f98000 c028160c c02ad30c c02ad2d0 c7f94800 c0230add 0000003e
8660 c027c000 00000001 c02b6206 c0299744 c02b61ce 00000037 c02b6206 00000000
8680 c02ad30c c02ad2d0 00000040 c02cb800 000000fa 000000f2 000000ff c0295514
86a0 000000f0 c02cb800 c02b06c0 c02a4af4 c028160c c02ad30c c02ad2d0 c7f98000
86c0 c028b800 c01e2468 ffffffff c028b1e4 c7ffc400 c028160c c024256c c0186688
86e0 c028160c c02c6104 c01e2468 c029c4e0 c028b310 c028b1b4 c7f988c0 00000000
8700 ffffffff 0000ffe0 0060b03c 08d4bcfc 00000000 00000008 c0295514 000000f0
8720 c02cb800 c028b800 c01e2468 ffffffff c028b1e4 c7ffc400 c02bfc1c c02bfe50
8740 00000063 00000008 c7f98718 c024256c 00000000 c0285038 c028b1b9 c0242340
8760 45e69c6a 25b7ea20 41800000 c029c248 00000010 00000010 00000000 00000000
8780 0004000b c02ca800 c029c248 00000000 c7ffc400 ffffffff c01e2468 c028b800
87a0 c02cb800 000000f0 00000000 000000ff 000000f2 000000fa 000000fd f0100000
87c0 f0001180 f0000070 f0000068 00000000 c7f9870e 00000002 c029c4d0 ffd07000
87e0 c7f98710 00000f20 00000000 c0268000 00000001 00000000 c7f989c0 002b31b8
8800 000b0800 00000000 0000001f 00000000 0000001f 00000000 0000001f 00000000
8820 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8840 00000010 00000020 7f7fffff ffffffff 43ebebeb e0000000 00000000 00000000
8860 45e69c6a 25b7ea20 41800000 00000000 00000010 00000010 00000000 00000000
8880 00000040 00000080 00000100 00000200 00000400 00000800 7fffffff 7fffffff
88a0 41000000 00000000 7fffffff 7fffffff 40800000 00000000 41000000 00000000
88c0 40300000 00000000 40200000 00000000 40200000 00000000 41800000 7fffffff
88e0 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
8900 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8920 00000000 00000000 c029c264 c029c268 00000000 00000000 c7f98b00 00000000
8940 00000000 00000000 0000001f 00000000 0000001f 0e681096 00000000 00000004
8960 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8980 00000010 00000020 7f7fffff ffffffff 43ebebeb e0000000 00000000 00000000
89a0 45e69c6a 25b7ea20 41800000 c01046e0 00000010 00000010 00000000 00000000

Data access rights fault in kernel: Code=26 regs=c7f98780 (Addr=00000004)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001011
r0-3     00000000 c02ca800 c029c248 00000000
r4-7     c7ffc400 ffffffff c01e2468 c028b800
r8-11    c02cb800 000000f0 00000000 000000ff
r12-15   000000f2 000000fa 000000fd f0100000
r16-19   f0001180 f0000070 f0000068 00000000
r20-23   c7f9870e 00000002 c029c4d0 ffd07000
r24-27   c7f98710 00000f20 00000000 c0268000
r28-31   00000001 00000000 c7f989c0 002b31b8
sr0-4    00000000 00000000 00000000 00000000
sr4-8    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c029c264 c029c268
 IIR: 0e681096    ISR: 00000000  IOR: 00000004
ORIG_R28: 00000000

--------------F7EF1B69F0A7C4C7DD54E27D--


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From: Andreas Thienemann <ixs@ixs.bb.bawue.de>
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Subject: Re: [parisc-linux] 250/1 doesn't boot but dumps stack
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Hi again,

just to clear something up:

On Thu, 16 Nov 2000, Andreas Thienemann wrote:

> the pty interfaces. (I already left out everything unnecessary, such as
> parallel port support)
I just noticed I attached the wrong file. The attached bootlog was from a
kernel that still had support for lp0.
But with another kernel, this time without lp support, this errors were
the same...

bye,
 Andreas


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From: Kailashnath V Rampure <kailasr@webcash.com>
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Subject: Re: [parisc-linux] Boot command
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Thomas,
I mounted the /dev/sda3 on mnt and deleted every thing and recopied then 
rebooted. It worked. Probably there was some fault while I copied yesterday.
I did not repartition the disk now.
Thanks

Regards
Kailas
At 07:10 PM 11/15/00 +0100, Thomas Marteau wrote:
>Hi again,
>
>     You put the swap partition before the f0 partition and here it is the f0
>partition in first position.
>     Also, your hard disk is ida instead of sda, what's that ?
>
>Bye,
>
>ESIEE Team
>----- Original Message -----
>From: Kailashnath V Rampure <kailasr@webcash.com>
>To: Thomas Marteau <marteaut@esiee.fr>
>Cc: <parisc-linux@puffin.external.hp.com>
>Sent: Wednesday, November 15, 2000 6:55 PM
>Subject: Re: [parisc-linux] Boot command
>
>
> > Yes Thomas the vmlinux is in /boot of 3rd partition as the other
>partitions
> > are swap and f0.
> >
> > At 11:48 AM 11/15/00 +0100, Thomas Marteau wrote:
> >
> > >----- Original Message -----
> > >From: Kailashnath V Rampure <kailasr@webcash.com>
> > >To: Paul Bame <bame@noam.fc.hp.com>
> > >Cc: Grant Grundler <grundler@cup.hp.com>; Matt Taggart
> > ><taggart@carmen.fc.hp.com>; <parisc-linux@thepuffingroup.com>
> > >Sent: Tuesday, November 14, 2000 11:58 PM
> > >Subject: Re: [parisc-linux] Boot command
> > >
> > >
> > > > I have booted HP A class server through network. On that I have
> > >repartioned
> > > > the system and followed the steps on
> > >http://www.parisc-linux.org/install.html.
> > > > I have used the following command to initialize the hard disk. The
>kernel
> > >I
> > > > have downloaded is vmlinux-20001018. and cpied it to /mnt/boot/vmlinux
> > > > after mounting /dev/sda3. I have used the following command to
>initialize
> > > > the HDD.
> > > >
> > > > palo -I -k /boot/vmlinux -b /boot/iplboot \ -c '3/boot/vmlinux
>TERM=linux
> > > > HOME=/ root=/dev/sda3' \ /dev/sda
> > >
> > >This means that vmlinux must be in /boot in your third partition on your
> > >disk.
> > >Is it true in your case?
> > >
> > > > --------------------------------
> > > > I get the following error:
> > > > --------------------------------
> > > > SOFT Boot.
> > > > palo ipl bame@noam Tue oct 31 14:18:02 MST 2000
> > > > 0/vmlinux 2138614 bytes@ 0x1f78c000
> > > > 0/palo-cmdline '3/boot/vmlinux TERM=linux HOME=/ root=/dev/sda3'
> > > > /dev/ida1 82 62 1030688
> > > > /dev/ida2 f0 1030750 24738
> > > > /dev/ida3 83 1055488 1030750
> > > > Kernel:partition 3 file /boot/vmlinux
> > > > ext2 block size 1024
> > > > ext2_mount(partition 3) returns 0
> > > > ext2_open(/boot/vmlinux) = -1
> > > > open /boot/vmlinux failed


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Subject: Re: [parisc-linux] Help with posix_types.h
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FYI I just heard some pretty good reasons why both ino_t and off_t
should be 64 bits even on 32-bit kernels.  Keep those cards and letters
coming!
	-P


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> > > > puffin, is binutils-x-hppa ok?
> > >
> > > binutils-x-parisc, no?
> > 
> > oops :) yes, that is what i used. is it the proper label?
> 
> To the best of my meagre knowledge, yes.

I believe that's the story we're sticking to, for the moment. ;)



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Subject: Re: [parisc-linux] 250/1 doesn't boot but dumps stack
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Andreas Thienemann wrote:

> But when I try to boot up this kernel it dumps stack right after initialising
> the pty interfaces. (I already left out everything unnecessary, such as
> parallel port support)
...
> parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
> Found i82596 at 0xffd07000, IRQ 87
> early initialization of device eth0 is deferred
> Initializing Lasi PS/2-keyboard port at 0xffd08000...
> Support for Lasi PS/2-psaux not yet available !
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Starting kswapd v1.8
> pty: 256 Unix98 ptys configured
> lp0: using parport0 (interrupt-driven).

Are you sure you left out parallel port support?


> Data access rights fault in kernel: Code=26 regs=c7f98780 (Addr=00000004)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001011
> r0-3     00000000 c02ca800 c029c248 00000000
> r4-7     c7ffc400 ffffffff c01e2468 c028b800
> r8-11    c02cb800 000000f0 00000000 000000ff
> r12-15   000000f2 000000fa 000000fd f0100000
> r16-19   f0001180 f0000070 f0000068 00000000
> r20-23   c7f9870e 00000002 c029c4d0 ffd07000
> r24-27   c7f98710 00000f20 00000000 c0268000
> r28-31   00000001 00000000 c7f989c0 002b31b8
> sr0-4    00000000 00000000 00000000 00000000
> sr4-8    00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: c029c264 c029c268
>  IIR: 0e681096    ISR: 00000000  IOR: 00000004
> ORIG_R28: 00000000

Smells like a driver bug.
Can you look up IOAQ and GR2 (c029c264 and c029c248) in System.map file?

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:8454

>   I've been helping Alan Modra out with kernel changes to support
> single stepping for gdb.  Paul Bame suggested I bounced our ideas
> off you in case you (or anyone else) had any comments.  I havn't
> actually committed my changes yet.
> 
> The basic approach is to use the recovery counter to generate
> a trap every instruction.  The scheme is complicated because a
> suspended process may or may not return to user space via an RFI.

I really don't know enough to comment on the implementation choice.  Why
did you decide on this approach as opposed to inserting breaks and
enabling the taken branch branch trap (T)?  It would appear that the recovery
counter was intended to provide software recovery from hardware faults
in fault tolerant systems.  Possibly, Grant could comment on whether
it is actually useful for this purpose.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Jack Perdue <j-perdue@tamu.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] nfsroot - 712/60 - RPC - help
Date: Wed, 15 Nov 2000 13:53:03 -0600
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Howdy Puffins and others,

I have a 712/60 here that I bought for the purpose of playing
with PARISC linux.  It came w/HP-UX 9.0 which I don't want to
wax just yet (e.g. for ioscan and other HP-UX utils).  I don't
have a CD for it, so I've been trying to get NFSROOT to work.

The 712/60 is known as pancho.  The bootp server is named blacktower.
I've unzipped nfsroot-20000804.tgz as /tftpboot/pancho and exported 
it to the local net.  I can mount it from an i386 RH6.2 box, but
I think I'm having problems accessing it from PA-RISC linux.

Below are some of my config files, the output from bootp
and two attempts at booting the 712/60... one with 
debugging turned on in net/sunrpc/sysctl.c.

I'm kinda stumped.  Can anyone see where I've gone wrong?

Some notes:

a) I've tried NFSROOT=192.168.1.11  and NFSROOT=192.168.1.11/tftpboot/vmlinux
    in palo/Makefile and the results are the same (both suggestions were
    made to this list at some point)

b) I tried the APRICOT drivers, but the kernel would never see the net interface
    so I've switched to the LASI_82596 driver (doing both resulted in dupe symbols).
    The LASI driver seems to get much further.

c) my sources were updated today from the puffin's CVS tree.  The kernel
    booting below was built on those sources.

d) with debugging on, I get:
      Root-NFS: Unable to get nfsd port number from server, using default
      Root-NFS: Portmapper on server returned 2049 as nfsd port
    however, with the debugging off, I only get:
      Root-NFS: Unable to get nfsd port number from server, using default
    portmap and rpc.mountd are running on blacktower.  Why the
    conflicting report when debug is on?

e) the final message in /var/log/messages is always 
    "tftpd: read: Connection refused".  My hosts.allow and hosts.deny
    files are empty so they shouldn't be the problem.  And,
    as mentioned I can NFS mount the directory.  Is this
    the problem and if so, what is the solution???

Any help on how I can resolve this problem is appreciated.

TIA,

jack
j-perdue@tamu.edu

========== blacktower:/etc/exports ==========

/tftpboot/pancho 192.168.1.0/255.255.255.0(rw,no_root_squash)

========== blacktower:/etc/bootptab ==========
pancho:\
         :hd=/tftpboot:\
         :bf=vmlinux:\
         :ht=ether:\
         :ha=08000993DA02:\
         :sm=255.255.255.0:\
         :hn:\
         :ip=192.168.1.13:\
         :vm=rfc1048:

========== bootpd output ==========

[root@blacktower rc.d]# /usr/sbin/bootpd -d 20
bootpd: info(6):   bootptab mtime: Wed Nov 15 13:02:44 2000
bootpd: info(6):   reading "/etc/bootptab"
bootpd: info(6):   read 1 entries (1 hosts) from "/etc/bootptab"
bootpd: info(6):   recvd pkt from IP addr 0.0.0.0
bootpd: info(6):   bootptab mtime: Wed Nov 15 13:02:44 2000
bootpd: info(6):   request from Ethernet address 08:00:09:93:DA:02
bootpd: info(6):   found 192.168.1.13 (pancho)
bootpd: info(6):   bootfile="/tftpboot/vmlinux"
bootpd: info(6):   vendor magic field is 99.130.83.99
bootpd: info(6):   sending reply (with RFC1048 options)
bootpd: info(6):   setarp 192.168.1.13 - 08:00:09:93:DA:02
bootpd: info(6):   recvd pkt from IP addr 0.0.0.0
bootpd: info(6):   bootptab mtime: Wed Nov 15 13:02:44 2000
bootpd: info(6):   request from Ethernet address 08:00:09:93:DA:02
bootpd: info(6):   found 192.168.1.13 (pancho)
bootpd: info(6):   bootfile="/tftpboot/vmlinux"
bootpd: info(6):   vendor magic field is 99.130.83.99
bootpd: info(6):   request message length=364
bootpd: info(6):   extended reply, length=364, options=128
bootpd: info(6):   sending reply (with RFC1048 options)
bootpd: info(6):   setarp 192.168.1.13 - 08:00:09:93:DA:02

========== from /var/log/messages ==========

Nov 15 13:02:20 blacktower bootpd[1320]: version 2.4.3
Nov 15 13:02:20 blacktower bootpd[1320]: bootptab mtime: Wed Oct 12 00:41:28 1994
Nov 15 13:02:20 blacktower bootpd[1320]: reading "/etc/bootptab"
Nov 15 13:02:20 blacktower bootpd[1320]: read 1 entries (1 hosts) from "/etc/bootptab"
Nov 15 13:02:47 blacktower bootpd[1323]: version 2.4.3
Nov 15 13:02:47 blacktower bootpd[1323]: bootptab mtime: Wed Nov 15 13:02:44 2000
Nov 15 13:02:47 blacktower bootpd[1323]: reading "/etc/bootptab"
Nov 15 13:02:47 blacktower bootpd[1323]: read 1 entries (1 hosts) from "/etc/bootptab"
Nov 15 13:04:34 blacktower bootpd[1323]: recvd pkt from IP addr 0.0.0.0
Nov 15 13:04:34 blacktower bootpd[1323]: bootptab mtime: Wed Nov 15 13:02:44 2000
Nov 15 13:04:34 blacktower bootpd[1323]: request from Ethernet address 08:00:09:93:DA:02
Nov 15 13:04:34 blacktower bootpd[1323]: found 192.168.1.13 (pancho)
Nov 15 13:04:34 blacktower bootpd[1323]: bootfile="/tftpboot/vmlinux"
Nov 15 13:04:34 blacktower bootpd[1323]: vendor magic field is 99.130.83.99
Nov 15 13:04:34 blacktower bootpd[1323]: sending reply (with RFC1048 options)
Nov 15 13:04:34 blacktower bootpd[1323]: setarp 192.168.1.13 - 08:00:09:93:DA:02
Nov 15 13:04:35 blacktower tftpd[1325]: tftpd: trying to get file: /tftpboot/vmlinux
Nov 15 13:04:36 blacktower tftpd[1327]: tftpd: trying to get file: /tftpboot/vmlinux
Nov 15 13:04:47 blacktower bootpd[1323]: recvd pkt from IP addr 0.0.0.0
Nov 15 13:04:47 blacktower bootpd[1323]: bootptab mtime: Wed Nov 15 13:02:44 2000
Nov 15 13:04:47 blacktower bootpd[1323]: request from Ethernet address 08:00:09:93:DA:02
Nov 15 13:04:47 blacktower bootpd[1323]: found 192.168.1.13 (pancho)
Nov 15 13:04:47 blacktower bootpd[1323]: bootfile="/tftpboot/vmlinux"
Nov 15 13:04:47 blacktower bootpd[1323]: vendor magic field is 99.130.83.99
Nov 15 13:04:47 blacktower bootpd[1323]: request message length=364
Nov 15 13:04:47 blacktower bootpd[1323]: extended reply, length=364, options=128
Nov 15 13:04:47 blacktower bootpd[1323]: sending reply (with RFC1048 options)
Nov 15 13:04:47 blacktower bootpd[1323]: setarp 192.168.1.13 - 08:00:09:93:DA:02
Nov 15 13:04:53 blacktower tftpd[1327]: tftpd: read: Connection refused

========== console output (no RPC debug) ==========



----------------------------------------------------------------------------
BootRom Version    1.5
Memory Size:  32 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1993, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.
Selecting a system to boot.

Booting
palo ipl jkp2866@redtower Wed Nov 15 12:44:21 CST 2000
0/vmlinux 1606438 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.68.1.11:/tftpboot/pancho '
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1097900 mediaptr 0x1000
Segment 1 load 0020e000 size 150520 mediaptr 0x10e000
Segment 2 load 00234000 size 55900 mediaptr 0x133000
Segment 3 load 00244000 size 8192 mediaptr 0x141000
branching to kernel entry point 0x00100000
Set default PSW W bit to 0
PDC Console Initialized
The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc026e000
start_parisc(0x504d6c,0x504d6c,0x0,0x0)
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.68.1.11:/tftpboot/pancho '
PALO initrd 0-0
model   00006000 00000481 00000000 00000000 77564139 00000000 00000004 00000072 00000072
vers    0000000a
CPUID vers 0 rev 0
Searching for devices in PDC firmware... processor hpa 0xfffbe000
  an older box...
Found devices:
1. Gecko GSC Core Graphics (10) at 0xf8000000, versions 0x16, 0x0, 0x85, 0x0, 0x0
2. Gecko Core BA (11) at 0xf0100000, versions 0x16, 0x0, 0x81, 0x0, 0x0
3. Gecko Core SCSI (10) at 0xf0106000, versions 0x16, 0x0, 0x82, 0x0, 0x0
4. Gecko Core Lan (802.3) (10) at 0xf0107000, versions 0x16, 0x0, 0x8a, 0x0, 0x0
5. Gecko Core RS-232 (10) at 0xf0105000, versions 0x16, 0x0, 0x8c, 0x0, 0x0
6. Gecko Core Centronics (10) at 0xf0102000, versions 0x16, 0x0, 0x74, 0x0, 0x0
7. Gecko Audio (10) at 0xf0104000, versions 0x16, 0x0, 0x7b, 0x0, 0x0
8. Gecko Core PC Floppy (10) at 0xf010a000, versions 0x16, 0x0, 0x83, 0x0, 0x0
9. Gecko Core PC Keyboard (10) at 0xf0108000, versions 0x16, 0x0, 0x84, 0x0, 0x0
10. Gecko Core PC Keyboard (10) at 0xf0108100, versions 0x16, 0x0, 0x84, 0x0, 0x0
11. Gecko (712/60) (0) at 0xfffbe000, versions 0x600, 0x0, 0x4, 0x0, 0x81
12. Gecko (1) at 0xfffbf000, versions 0x26, 0x0, 0x9, 0x0, 0x0
That's a total of 12 devices.
CPU(s): 1 x PA7100LC (PCX-L) at 60.000000 MHz
Linux version 2.4.0-test10 (jkp2866@redtower) (gcc version 2.96 20000925 (experimental)) #16 Wed Nov 15 14:01:38 CST 2000
free_bootmem(0x26e400, 0x1d91c00)
pagetable_init
On node 0 totalpages: 8192
zone(0): 4096 pages.
zone(1): 4096 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.68.1.11:/tftpboot/pancho 
trap_init
Calibrating delay loop... 59.80 BogoMIPS
Memory: 29632k available
Dentry-cache hash table entries: 4096 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 2048 (order: 2, 16384 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xf0100000 found.
Found i82596 at 0xf0107000, IRQ 87
early initialization of device eth0 is deferred
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
eth0: 82596 at 0xf0107000, 08 00 09 93 DA 02 IRQ 87.
82596.c $Revision: 1.14 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 2048 bind 2048)
eth0: link ok.
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 192.168.1.11, my address is 192.168.1.13
Switching from PDC console
kmem_create: Forcing size word alignment - nfs_fh
Looking up port of RPC 100003/2 on 192.68.1.11
RPC: sendmsg returned error 229
portmap: RPC call returned error 229
Root-NFS: Unable to get nfsd port number from server, using default
Looking up port of RPC 100005/2 on 192.68.1.11
RPC: sendmsg returned error 229
portmap: RPC call returned error 229
Root-NFS: Unable to get mountd port number from server, using default
RPC: sendmsg returned error 229
mount: RPC call returned error 229
Root-NFS: Server returned error -229 while mounting /tftpboot/pancho
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "nfs" or 02:00
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on 02:00


========== console output (with RPC debug) ==========


----------------------------------------------------------------------------
BootRom Version    1.5
Memory Size:  32 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1993, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.
Selecting a system to boot.

Booting
palo ipl jkp2866@redtower Wed Nov 15 12:44:21 CST 2000
0/vmlinux 1606438 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.68.1.11:/tftpboot/pancho '
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1097900 mediaptr 0x1000
Segment 1 load 0020e000 size 150520 mediaptr 0x10e000
Segment 2 load 00234000 size 55900 mediaptr 0x133000
Segment 3 load 00244000 size 8192 mediaptr 0x141000
branching to kernel entry point 0x00100000
Set default PSW W bit to 0
PDC Console Initialized
The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc026e000
start_parisc(0x504d6c,0x504d6c,0x0,0x0)
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.68.1.11:/tftpboot/pancho '
PALO initrd 0-0
model   00006000 00000481 00000000 00000000 77564139 00000000 00000004 00000072 00000072
vers    0000000a
CPUID vers 0 rev 0
Searching for devices in PDC firmware... processor hpa 0xfffbe000
  an older box...
Found devices:
1. Gecko GSC Core Graphics (10) at 0xf8000000, versions 0x16, 0x0, 0x85, 0x0, 0x0
2. Gecko Core BA (11) at 0xf0100000, versions 0x16, 0x0, 0x81, 0x0, 0x0
3. Gecko Core SCSI (10) at 0xf0106000, versions 0x16, 0x0, 0x82, 0x0, 0x0
4. Gecko Core Lan (802.3) (10) at 0xf0107000, versions 0x16, 0x0, 0x8a, 0x0, 0x0
5. Gecko Core RS-232 (10) at 0xf0105000, versions 0x16, 0x0, 0x8c, 0x0, 0x0
6. Gecko Core Centronics (10) at 0xf0102000, versions 0x16, 0x0, 0x74, 0x0, 0x0
7. Gecko Audio (10) at 0xf0104000, versions 0x16, 0x0, 0x7b, 0x0, 0x0
8. Gecko Core PC Floppy (10) at 0xf010a000, versions 0x16, 0x0, 0x83, 0x0, 0x0
9. Gecko Core PC Keyboard (10) at 0xf0108000, versions 0x16, 0x0, 0x84, 0x0, 0x0
10. Gecko Core PC Keyboard (10) at 0xf0108100, versions 0x16, 0x0, 0x84, 0x0, 0x0
11. Gecko (712/60) (0) at 0xfffbe000, versions 0x600, 0x0, 0x4, 0x0, 0x81
12. Gecko (1) at 0xfffbf000, versions 0x26, 0x0, 0x9, 0x0, 0x0
That's a total of 12 devices.
CPU(s): 1 x PA7100LC (PCX-L) at 60.000000 MHz
Linux version 2.4.0-test10 (jkp2866@redtower) (gcc version 2.96 20000925 (experimental)) #15 Wed Nov 15 13:48:41 CST 2000
free_bootmem(0x26e400, 0x1d91c00)
pagetable_init
On node 0 totalpages: 8192
zone(0): 4096 pages.
zone(1): 4096 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.68.1.11:/tftpboot/pancho 
trap_init
Calibrating delay loop... 59.80 BogoMIPS
Memory: 29632k available
Dentry-cache hash table entries: 4096 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 2048 (order: 2, 16384 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xf0100000 found.
Found i82596 at 0xf0107000, IRQ 87
early initialization of device eth0 is deferred
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
eth0: 82596 at 0xf0107000, 08 00 09 93 DA 02 IRQ 87.
82596.c $Revision: 1.14 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 2048 bind 2048)
eth0: link ok.
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 192.168.1.11, my address is 192.168.1.13
Switching from PDC console
kmem_create: Forcing size word alignment - nfs_fh
RPC: registering /proc/net/rpc
RPC: registering /proc/net/rpc/nfs
Looking up port of RPC 100003/2 on 192.68.1.11
RPC:      rpc_getport_external(192.68.1.11, 100003, 2, 17)
RPC:      xprt_create_proto called
RPC:      xprt_create_socket(udp 17)
RPC:      setting up UDP transport...
RPC:      created transport c1fa4000
RPC: creating portmap client for 192.68.1.11 (xprt c1fa4000)
RPC:      allocated buffer c1faa5a0
RPC: creating NULL authenticator for client c1faa5a0
RPC:      allocated buffer c1fe6460
RPC:    0 new task procpid 1
RPC:    0 looking up NULL cred
RPC:      allocated buffer c1fe5500
RPC:    0 rpc_execute flgs 0
RPC:    0 call_reserve
RPC:    0 xprt_reserve cong = 0 cwnd = 256
RPC:    0 reserved req c1fa4064 xid 11582000
RPC:    0 xprt_reserve returns 0
RPC:    0 call_reserveresult (status 0)
RPC:    0 call_allocate (status 0)
RPC:      allocated buffer c1fb3800
RPC:    0 call_encode (status 0)
RPC:    0 marshaling NULL cred c1fe5500
RPC: xdr_encode_mapping(100003, 2, 17, 0)
RPC:    0 call_transmit (status 0)
RPC:    0 xprt_transmit(11582000)
RPC:    0 xprt_receive
RPC:    0 sleep_on(queue "xprt_pending" time 89)
RPC:    0 added to queue c1fa4048 "xprt_pending"
RPC:      xprt_sendmsg(56) = -229
RPC: sendmsg returned error 229
RPC:    0 __rpc_wake_up_task (now 93 inh 0)
RPC:    0 disabling timer
RPC:    0 removed from queue c1fa4048 "xprt_pending"
RPC:      __rpc_wake_up_task done
RPC:      wake_up_next(c1fa4040 "xprt_sending")
RPC:    0 call_status (status -229)
portmap: RPC call returned error 229
RPC:    0 exit() = -229
RPC:    0 release task
RPC:    0 disabling timer
RPC:    0 release request c1fa4064
RPC:      wake_up_next(c1fa4050 "xprt_backlog")
RPC:    0 releasing NULL cred c1fe5500
RPC:      rpc_release_client(c1faa5a0, 1)
RPC: destroying portmap client for 192.68.1.11
RPC: destroying NULL authenticator c1fe6460
RPC:      destroying transport c1fa4000
RPC:      disconnected transport c1fa4000
Root-NFS: Unable to get nfsd port number from server, using default
Root-NFS: Portmapper on server returned 2049 as nfsd port
Looking up port of RPC 100005/2 on 192.68.1.11
RPC:      rpc_getport_external(192.68.1.11, 100005, 2, 17)
RPC:      xprt_create_proto called
RPC:      xprt_create_socket(udp 17)
RPC:      setting up UDP transport...
RPC:      created transport c1fa4000
RPC: creating portmap client for 192.68.1.11 (xprt c1fa4000)
RPC:      allocated buffer c1faa5a0
RPC: creating NULL authenticator for client c1faa5a0
RPC:      allocated buffer c1fe6460
RPC:    1 new task procpid 1
RPC:    1 looking up NULL cred
RPC:      allocated buffer c1fe5500
RPC:    1 rpc_execute flgs 0
RPC:    1 call_reserve
RPC:    1 xprt_reserve cong = 0 cwnd = 256
RPC:    1 reserved req c1fa4064 xid 11582001
RPC:    1 xprt_reserve returns 0
RPC:    1 call_reserveresult (status 0)
RPC:    1 call_allocate (status 0)
RPC:      allocated buffer c1fb3800
RPC:    1 call_encode (status 0)
RPC:    1 marshaling NULL cred c1fe5500
RPC: xdr_encode_mapping(100005, 2, 17, 0)
RPC:    1 call_transmit (status 0)
RPC:    1 xprt_transmit(11582001)
RPC:    1 xprt_receive
RPC:    1 sleep_on(queue "xprt_pending" time 140)
RPC:    1 added to queue c1fa4048 "xprt_pending"
RPC:      xprt_sendmsg(56) = -229
RPC: sendmsg returned error 229
RPC:    1 __rpc_wake_up_task (now 144 inh 0)
RPC:    1 disabling timer
RPC:    1 removed from queue c1fa4048 "xprt_pending"
RPC:      __rpc_wake_up_task done
RPC:      wake_up_next(c1fa4040 "xprt_sending")
RPC:    1 call_status (status -229)
portmap: RPC call returned error 229
RPC:    1 exit() = -229
RPC:    1 release task
RPC:    1 disabling timer
RPC:    1 release request c1fa4064
RPC:      wake_up_next(c1fa4050 "xprt_backlog")
RPC:    1 releasing NULL cred c1fe5500
RPC:      rpc_release_client(c1faa5a0, 1)
RPC: destroying portmap client for 192.68.1.11
RPC: destroying NULL authenticator c1fe6460
RPC:      destroying transport c1fa4000
RPC:      disconnected transport c1fa4000
Root-NFS: Unable to get mountd port number from server, using default
Root-NFS: mountd port is 627
NFS:      nfs_mount(c044010b:/tftpboot/pancho)
RPC:      xprt_create_proto called
RPC:      xprt_create_socket(udp 17)
RPC:      setting up UDP transport...
RPC:      created transport c1fa4000
RPC: creating mount client for 192.68.1.11 (xprt c1fa4000)
RPC:      allocated buffer c1faa5a0
RPC: creating NULL authenticator for client c1faa5a0
RPC:      allocated buffer c1fe6460
RPC:    2 new task procpid 1
RPC:    2 looking up NULL cred
RPC:      allocated buffer c1fe5500
RPC:    2 rpc_execute flgs 0
RPC:    2 call_reserve
RPC:    2 xprt_reserve cong = 0 cwnd = 256
RPC:    2 reserved req c1fa4064 xid 11582002
RPC:    2 xprt_reserve returns 0
RPC:    2 call_reserveresult (status 0)
RPC:    2 call_allocate (status 0)
RPC:      allocated buffer c1fa3000
RPC:    2 call_encode (status 0)
RPC:    2 marshaling NULL cred c1fe5500
RPC:    2 call_transmit (status 0)
RPC:    2 xprt_transmit(11582002)
RPC:    2 xprt_receive
RPC:    2 sleep_on(queue "xprt_pending" time 189)
RPC:    2 added to queue c1fa4048 "xprt_pending"
RPC:      xprt_sendmsg(60) = -229
RPC: sendmsg returned error 229
RPC:    2 __rpc_wake_up_task (now 193 inh 0)
RPC:    2 disabling timer
RPC:    2 removed from queue c1fa4048 "xprt_pending"
RPC:      __rpc_wake_up_task done
RPC:      wake_up_next(c1fa4040 "xprt_sending")
RPC:    2 call_status (status -229)
mount: RPC call returned error 229
RPC:    2 exit() = -229
RPC:    2 release task
RPC:    2 disabling timer
RPC:    2 release request c1fa4064
RPC:      wake_up_next(c1fa4050 "xprt_backlog")
RPC:    2 releasing NULL cred c1fe5500
RPC:      rpc_release_client(c1faa5a0, 1)
RPC: destroying mount client for 192.68.1.11
RPC: destroying NULL authenticator c1fe6460
RPC:      destroying transport c1fa4000
RPC:      disconnected transport c1fa4000
Root-NFS: Server returned error -229 while mounting /tftpboot/pancho
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "nfs" or 02:00
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on 02:00

========== linux/.config ==========

#
# Automatically generated make config: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# General options
#
# CONFIG_SMP is not set
# CONFIG_KWDB is not set
CONFIG_GSC=y
# CONFIG_IOMMU_CCIO is not set
CONFIG_GSC_LASI=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
# CONFIG_PCI_LBA is not set

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# General setup
#
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_BINFMT_SOM=y
# CONFIG_BINFMT_ELF is not set
# CONFIG_BINFMT_MISC is not set
# CONFIG_BINFMT_JAVA is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set

#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_NETLINK is not set
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
# CONFIG_UNIX is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set

#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# SCSI support
#
# CONFIG_SCSI is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
CONFIG_LASI_82596=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_NET_SB1000 is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
# CONFIG_DE4X5 is not set
# CONFIG_TULIP is not set
# CONFIG_DGRS is not set
# CONFIG_DM9102 is not set
# CONFIG_EEPRO100 is not set
# CONFIG_LNE390 is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_RTL8129 is not set
# CONFIG_8139TOO is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Character devices
#
# CONFIG_VT is not set
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
CONFIG_SERIAL_EXTENDED=y
# CONFIG_SERIAL_MANY_PORTS is not set
# CONFIG_SERIAL_SHARE_IRQ is not set
# CONFIG_SERIAL_DETECT_IRQ is not set
# CONFIG_SERIAL_MULTIPORT is not set
# CONFIG_HUB6 is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_JOYSTICK is not set

#
# Input core support is needed for joysticks
#
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_GENRTC is not set
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_SYSV_FS_WRITE is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
CONFIG_NFS_FS=y
# CONFIG_NFS_V3 is not set
CONFIG_ROOT_NFS=y
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_MOUNT_SUBDIR is not set
# CONFIG_NCPFS_NDS_DOMAINS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_NLS is not set

#
# Sound Drivers
#
# CONFIG_SOUND is not set

#
# Kernel hacking
#
# CONFIG_MAGIC_SYSRQ is not set




From - Thu Nov 08 21:14:08 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] nfsroot - 712/60 - RPC - help
Date: Wed, 15 Nov 2000 12:10:36 -0800
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To: Jack Perdue <j-perdue@tamu.edu>
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Jack Perdue wrote:

Two changes:

> a) I've tried NFSROOT=192.168.1.11  and NFSROOT=192.168.1.11/tftpboot/vmlinux
>     in palo/Makefile and the results are the same (both suggestions were
>     made to this list at some point)

Try NFSROOT=192.168.1.11/tftpboot/pancho


> ========== blacktower:/etc/bootptab ==========
> pancho:\
>          :hd=/tftpboot:\
>          :bf=vmlinux:\
>          :ht=ether:\
>          :ha=08000993DA02:\
>          :sm=255.255.255.0:\
>          :hn:\
>          :ip=192.168.1.13:\
>          :vm=rfc1048:

This is just a nit:
  bf= might be better named ":bf=lifimage\"

(and you only need one colon between entry's :^)
Copy <sourcedir>/palo/lifimage to /tftpboot/lifimage.

There must be something wrong but I don't see it.

grant


> kmem_create: Forcing size word alignment - nfs_fh
> Looking up port of RPC 100003/2 on 192.68.1.11
> RPC: sendmsg returned error 229
> portmap: RPC call returned error 229

I don't see these types of errors on my config.
Could be related to the misdirected NFSROOT.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Jack Perdue <j-perdue@tamu.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Doh!!!  was Re: [parisc-linux] nfsroot - 712/60 - RPC - help
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Of course, as soon I collected all that info and sent it I,
in rereading, realized that I had put 192.68.1.11 in
palo/Makefile instead of 192.168.1.11.  Doh!

However, since the info is out there now, can someone
tell me what I need to resolve the following:

   [previous console output in previous mail]
   Switching from PDC console
   kmem_create: Forcing size word alignment - nfs_fh
   Looking up port of RPC 100003/2 on 192.168.1.11
   Looking up port of RPC 100005/2 on 192.168.1.11
   VFS: Mounted root (nfs filesystem) readonly.
   Kernel panic: No init found.  Try passing init= option to kernel.

jack
j-perdue@tamu.edu


From - Thu Nov 08 21:14:08 2018
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Subject: Re: [parisc-linux] Single-stepping
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  In message <200011151949.OAA22929@hiauly1.hia.nrc.ca>you write:
  > >   I've been helping Alan Modra out with kernel changes to support
  > > single stepping for gdb.  Paul Bame suggested I bounced our ideas
  > > off you in case you (or anyone else) had any comments.  I havn't
  > > actually committed my changes yet.
  > > 
  > > The basic approach is to use the recovery counter to generate
  > > a trap every instruction.  The scheme is complicated because a
  > > suspended process may or may not return to user space via an RFI.
  > 
  > I really don't know enough to comment on the implementation choice.  Why
  > did you decide on this approach as opposed to inserting breaks and
  > enabling the taken branch branch trap (T)?  It would appear that the recove
  > ry
  > counter was intended to provide software recovery from hardware faults
  > in fault tolerant systems.  Possibly, Grant could comment on whether
  > it is actually useful for this purpose.
Err, we tried that at the UofU in our mach port to the PA -- there's a problem
with that scheme, though I don't remember precisely what it was.  I believe
there were cases where the recovery counter doesn't trigger a trap, possibly
due to nullified instructions.

You might look at the UofU BSD code, which I believe used breakpoints and
branch taken traps instad.

jeff


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Palinux on a 712/60
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Andrew Shugg writes...

> Arnaud.ATOCH@oecd.org said:
> > Hi,
> > 
> > I got a couple of 715 and I'd love having access to an ISO image with STI
> > console kernel too.
> 
> I've never made an El Torito CDROM, is it possible to have multiple boot
> images and a boot loader on a single disc?

El Torito is a PC thing. It makes the front of a CDROM look like a floppy to 
the PC BIOS. For hppa you put a lifimage on the front of the CDROM(or tape or 
HDD, etc).

> ie could the actual boot
> image be a boot loader (PALO) which then points at one or more kernels
> on the CDROM?

Maybe. Paul Bame is the expert though. I think he had to do some work to get 
palo to be able to see a kernel on an ISO9660 filesystem. I don't know if it 
can currently be interruped and pointed at a different kernel. Paul?

-- 
Matt Taggart
taggart@fc.hp.com



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Paul Bame <bame@noam.fc.hp.com> writes:

> FYI I just heard some pretty good reasons why both ino_t and off_t
> should be 64 bits even on 32-bit kernels.  Keep those cards and letters
> coming!

Any new port which does *not* do this is broken from the beginning.
Copying existing files is not what you have to do.  Instead look at
today's needs.  The numbers of the x86 port are those the kernel
people told me are needs, multiplied by 2 or 4.  Do the same.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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From: johannes zahn <ich@johannes-zahn.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] init dies on apollo 720
Date: Wed, 15 Nov 2000 21:49:31 +0100
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Hi!

I'm trying to get a 720/50 to boot from nfs, but as soon as the nfs 
mound happened init dies. This is all i get on the serial console 
(pasted from minicom):


kmem_create: Forcing size word alignment - nfs_fh    
Looking up port of RPC 100003/2 on 192.168.1.1       
Looking up port of RPC 100005/2 on 192.168.1.1
VFS: Mounted root (nfs filesystem) readonly.

handle_interruption() pid=1 command='init'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111011100001011
r0-3     00000000 4001ad3c 400057a3 00001f58
r4-7     4001967c 00000000 4001ada0 00001f58
r8-11    00000000 000023cc 00000001 00000000
r12-15   00001034 00000006 40019622 2001ff18
r16-19   c1fdc000 c027b60c 00000000 4001967c                            
r20-23   0000a090 0000a090 00009d8c 00001f58                            
r24-27   00000001 00000081 4001ada0 c01492b0                            
r28-31   00000000 0000000b 20020790 400032d7                            
sr0-4    00000001 00000001 00000000 00000001                            
sr4-8    00000001 00000001 00000001 00000001                            
        
IASQ: 00000001 00000001 IAOQ: 4000d237 4000d23b                         
 IIR: 0ed51280    ISR: 00000001  IOR: 00009d8c                          
ORIG_R28: 4001b208                                                      
        
handle_interruption() pid=1 command='init'                              
        
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                   

[...]

I tried the cvs-latest kernel and palo from 2000-11-10 and 2000-11-14 
with the crosscompiler from 2000-10-31. Buildhost is i386 linux.

nfsroot was from 2000-10-09 or base.tgz from the 0.5 beta CD.

I also tried the ramdisk images with sercon and sticon, but the kernel 
only says "cannot mount root FS on 01:00".

The kernel from the 0.5 beta CD seems to have the parport stuff, and 
that does not work on this machine.

Any ideas? Or a working .config?


johannes


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Subject: Re: [parisc-linux] Single-stepping
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Re:

> > The basic approach is to use the recovery counter to generate
> > a trap every instruction.  The scheme is complicated because a
...

> I really don't know enough to comment on the implementation choice.  Why
> did you decide on this approach as opposed to inserting breaks and

MPE/iX (which runs on PA-RISC hardware), has successfully used
the Recovery Counter to implement single step for many, many years.

BTW, in addition to single step, it's a great tool for counting the
number of instructions a procedure (or code path) takes,
assuming an adequately powerful debugger:

   1) stop (perhaps via a breakpoint) at the start of the code
      you want to count.

   2) set a breakpoint at the end of the code you want to count
      (e.g., if you're counting a procedure, set a breakpoint at
      the procedure exit)

   3) instead of "continue", do:   s 1000000

      (i.e., tell Debug/iX to "singlestep" 1000000 instructions)

   4) if you hit the breakpoint, enter:

          = 1000000 - rctr

      that's how many instructions your code took!  (Not counting
      instructions executed by interrupt handlers, of course.)

   5) if you *didn't* hit the breakpoint, then 1000000 wasn't
      enough instructions (and why are you trying to count so high?)

This works because MPE's debug "s" command sets the Recovery Counter
to the number of instructions you wanted to step.  Normally, that's 
one (for just "s").  If you said "s 3", it would set the Recovery Counter
to 3.  If you say "s 1000000", and then execute 123 instructions,
and then hit a breakpoint, Debug captures the entire register state
as of the breakpoint: including the Recovery Counter (which has 
1000000 - 123 in it).

Tip: if you're looking at instruction-level debugging, look at Debug/iX
to see how to do it right!


> It would appear that the recovery
> counter was intended to provide software recovery from hardware faults

The 1986 PA-RISC Instruction manual simply says "The Recovery
Counter (CR 0) can be used to provide software recovery of hardware
faults in fault tolerant systems".  (I.e., "can", not "must" ...
and there's no explanation of how one would use it for this.)


-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com        


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Subject: [parisc-linux] binutils change in CVS...
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I've committed my patch to CVS for binutils that should let you commit
with a target of parisc-linux instead of hppa-linux.  I think there's at
least one problem with building it now because of this, so I'd appreciate
it if others could:

a) try rebuilding

and optionally:
b) fixing it.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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Subject: Re: [parisc-linux] Help with posix_types.h
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This reminds me of something I talked to Cary Coutant about before.

You have certainly reserved a thread register in the ABI, right?  If
not, do it ASAP.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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From: Frank Rowand <frank_rowand@mvista.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Single-stepping
Date: Wed, 15 Nov 2000 13:16:28 -0800
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law@redhat.com wrote:
> 
>   In message <200011151949.OAA22929@hiauly1.hia.nrc.ca>you write:
>   > >   I've been helping Alan Modra out with kernel changes to support
>   > > single stepping for gdb.  Paul Bame suggested I bounced our ideas
>   > > off you in case you (or anyone else) had any comments.  I havn't
>   > > actually committed my changes yet.
>   > >
>   > > The basic approach is to use the recovery counter to generate
>   > > a trap every instruction.  The scheme is complicated because a
>   > > suspended process may or may not return to user space via an RFI.
>   >
>   > I really don't know enough to comment on the implementation choice.  Why
>   > did you decide on this approach as opposed to inserting breaks and
>   > enabling the taken branch branch trap (T)?  It would appear that the recove
>   > ry
>   > counter was intended to provide software recovery from hardware faults
>   > in fault tolerant systems.  Possibly, Grant could comment on whether
>   > it is actually useful for this purpose.
> Err, we tried that at the UofU in our mach port to the PA -- there's a problem
> with that scheme, though I don't remember precisely what it was.  I believe
> there were cases where the recovery counter doesn't trigger a trap, possibly
> due to nullified instructions.
> 
> You might look at the UofU BSD code, which I believe used breakpoints and
> branch taken traps instad.
> 
> jeff
> 

I implemented two different single step algorithms for a a _kernel_ debugger
for hp-ux.  The algorithm used could be chosen by a compile switch, because
each method had cases that weren't handled well - for some debugging tasks
one algorithm was superior to the other.  Part of my problem with the
recovery counter was that other services in the hp-ux kernel also used the
recovery counter.

I liked the recovery counter method better than my second method (but had to
deal with collisions with the other kernel services).  My second method was
to insert a breakpoint at the target of the single step.  It's a pain to do
that because of issues with delay slots, branching, and nullification.

I guess the point of all this rambling is to say that the recovery counter has
been successfully used by a debugger for single stepping.

-Frank
-- 
Frank Rowand <frank_rowand@mvista.com>
MontaVista Software, Inc


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Re:

> I implemented two different single step algorithms for a a _kernel_ debugger
> for hp-ux.  The algorithm used could be chosen by a compile switch, because

BTW, Frank, ask Lee Courtney at MontaVista about Debug/iX ...
we've had kernel debugging and single stepping (except for the interrupt 
control stack and a few other corner cases) for 15+ years.

It's *very* powerful to be able to logon as root (or equivalent) and set
breakpoints within the kernel, hit them, and then single step 
... all on a standard release of the operating system.

> I liked the recovery counter method better than my second method (but had to
> deal with collisions with the other kernel services).  My second method was
> to insert a breakpoint at the target of the single step.  It's a pain to do
> that because of issues with delay slots, branching, and nullification.

Worse yet...the breakpoint mechanism raises hell if you have more than
one CPU :)    You realllly don't want that other CPU to hit the breakpoint!
 
-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com        


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From: Andreas Thienemann <andreas@bawue.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 250/1 doesn't boot but dumps stack
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Hi Grant,

Grant Grundler wrote:

> > lp0: using parport0 (interrupt-driven).
> Are you sure you left out parallel port support?
Yes, I am. I just attached the wrong log. Except the lp0 line, there are no
differences...

> > IASQ: 00000000 00000000 IAOQ: c029c264 c029c268
> >  IIR: 0e681096    ISR: 00000000  IOR: 00000004
> > ORIG_R28: 00000000
> Smells like a driver bug.
> Can you look up IOAQ and GR2 (c029c264 and c029c248) in System.map file?
Of course.
The only problem is, there is no such entry in
/usr/src/pa-risc/sourcE/linux/System.map .

Any ideas?

 andreas


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] dino maintainer?
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On Wed, Nov 15, 2000 at 09:58:35AM +0000, Richard Hirst wrote:
> But Helge has problems with the sym53c8xx driver on a B160L.  Is

Turned out to be a 53c720, driven via Zalon and the ncr53c8xx driver.
Driver worked as a module, but not compiled in.  Now fixed.

Richard


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From: "Robert Duncan" <rlduncan@nortelnetworks.com>
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Subject: [parisc-linux] CD-ROM 715/50 boot dies after serial driver...
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Greetings,
I have downloaded the .5 Beta CDROM image, burned it and get a "fault in
kernel" after the "Serial driver ... enabled" message when booting on my
715/50.  This happens with either graphics or serial console configured in
NVRAM.

Has anyone else seen this error?

----------------begin console output
              (c) Copyright Hewlett-Packard Company, 1991, 1992
Portions of this code are (c) Copyright Samsung Electronics Co., Ltd, 91, 92


PDC ROM rev. 1.2
IODC ROM rev. 1.1
64 MB of memory have been configured.


Selecting a system to boot.
To stop selection process, press and hold the ESCAPE key.....

Booting from:     scsi.6.0     TOSHIBA CD-ROM XM-3501TA

Soft booted.
palo ipl bame@noam Tue Oct 31 14:18:02 MST 2000
0/vmlinux 2140145 bytes @ 0x6f9800
0/palo-cmdline '0/vmlinux ROOT=/ TERM=LINUX root=/dev/scd0'
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100150 first 00100000 n 4
Segment 0 load 00100000 size 1460344 mediaptr 0x1000
Segment 1 load 00266000 size 179048 mediaptr 0x166000
Segment 2 load 00294000 size 109876 mediaptr 0x192000
Segment 3 load 002b0000 size 8192 mediaptr 0x1ad000
branching to kernel entry point 0x00100150
PDC Console Initialized
The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02da000
(0x504d6c,0x504d6c,0x0,0x0)
PALO command line: 'ROOT=/ TERM=LINUX root=/dev/scd0'
PALO initrd 0-0
model   00003100 00000481 00000000 00000000 77a94524 ffffffff 00000004
0000000a 0000000a
vers    00000009
CPUID vers 0 rev 0
Searching for devices in PDC firmware... processor hpa 0xfffbe000
 an older box...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0, 0x77,
0x0, 0x0
2. Scorpio Core BA (11) at 0xf082f000, versions 0x7, 0x0, 0x70, 0x0, 0x0
3. Scorpio Core SCSI (10) at 0xf0825000, versions 0x7, 0x0, 0x71, 0x0, 0x0
4. Scorpio Core LAN (802.3) (10) at 0xf0826000, versions 0x7, 0x0, 0x72,
0x0, 0x0
5. Scorpio Core HIL (10) at 0xf0821000, versions 0x7, 0x0, 0x73, 0x0, 0x0
6. Scorpio Core RS-232 (10) at 0xf0823000, versions 0x7, 0x0, 0x75, 0x0, 0x0
7. Scorpio Core RS-232 (10) at 0xf0822000, versions 0x7, 0x0, 0x75, 0x0, 0x0
8. Scorpio Core Centronics (10) at 0xf0824000, versions 0x7, 0x0, 0x74, 0x0,
0x0
9. Scorpio Audio (10) at 0xf1000000, versions 0x7, 0x0, 0x7b, 0x0, 0x0
10. Scorpio EISA BA (11) at 0xfc000000, versions 0x7, 0x0, 0x76, 0x0, 0x0
11. Scorpio (715/50) (0) at 0xfffbe000, versions 0x310, 0x0, 0x4, 0x0, 0x81
12. Scorpio (1) at 0xfffbf000, versions 0x17, 0x0, 0x9, 0x0, 0x0
That's a total of 12 devices.
CPU(s): 1 x PA7100 (PCX-T) at 50.000000 MHz
Linux version 2.4.0-test6 (pjlahaie@elenuial.thepuffingroup.com) (gcc
version 2.96 20000925 (experimental)) #32 Mon Nov 6 10:20:58 EST 2000
free_bootmem(0x2da800, 0x3d25800)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 16384
zone(0): 8192 pages.
zone(1): 8192 pages.
zone(2): 0 pages.
Kernel command line: ROOT=/ TERM=LINUX root=/dev/scd0
trap_init
Calibrating delay loop... 49.77 BogoMIPS
Memory: 61388k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
Found i82596 at 0xf0826000, IRQ 87
early initialization of device eth0 is deferred
Found HIL at 0xf0821000, IRQ 94
HIL: no keyboard present.
Warning : device (10, 0x7, 0x0, 0x73, 0x0) NOT claimed by HIL 712, 715 or
similiar
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 4096)
Starting kswapd v1.7
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sim700: Couldn't get consistent shared memory
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86
scsi0: Revision 0x0
Post test1, istat 05, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: WARNING: target data areas are not dma coherent!
scsi0: test 1 completed ok.
scsi0: sim700_intr_handle() called with no interrupt
scsi0 : LASI/Simple 53c7xx
scsi : 1 host.
  Vendor: TOSHIBA   Model: CD-ROM XM-3501TA  Rev: 3054
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 6, lun 0
scsi : detected 1 SCSI cdrom total.
Uniform CD-ROM driver Revision: 3.11
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 42 1B 37 IRQ 87.
82596.c $Revision: 1.14 $
Serial driver version 5.01 (2000-05-29) with MANY_PORTS SHARE_IRQ SERIAL_PCI
enabled

Dumping Stack from c3fc4000 to c3fc4bc0:
4000 00000000 00000140 00000000 00000000 c027a46c 00000001 00000000 ffffffff
4020 00000000 00000000 00000000 00000000 00000000 00000000 ffffffff c027a384
 [...]
4ba0 ffffffff bffff5ff ffffff7f c01046e0 ffffbeff f7b7eddf 5fffffdf feefffff

Data access rights fault in kernel: Code=26 regs=c3fc4980 (Addr=00000003)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001010
r0-3     00000000 c0221800 c011e9f8 c3fce420
r4-7     c3fce200 c0244f10 00000008 f0823800
r8-11    00000003 00000007 c0191568 c02c60a4
r12-15   fffffffc c0245000 c0245000 c02d72b8
r16-19   c0245000 c0245000 c02c6028 00000000
r20-23   c3fce234 f0823807 f0823800 0000000a
r24-27   ffffffff c3fce420 c3fce200 c0266000
r28-31   ffffffff 00000240 c3fc4bc0 c012dfc0
sr0-4    00000000 00000000 00000000 00000000
sr4-8    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c011e710 c011e714
 IIR: 0f881093    ISR: 00000000  IOR: 00000003
ORIG_R28: 00000058

----------------end console output

thanks,
Robert Duncan
Nortelnetworks

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<TITLE>CD-ROM 715/50 boot dies after serial driver...</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>Greetings,</FONT>
<BR><FONT SIZE=3D2>I have downloaded the .5 Beta CDROM image, burned it =
and get a &quot;fault in kernel&quot; after the &quot;Serial driver ... =
enabled&quot; message when booting on my 715/50.&nbsp; This happens =
with either graphics or serial console configured in NVRAM.</FONT></P>

<P><FONT SIZE=3D2>Has anyone else seen this error?</FONT>
</P>

<P><FONT SIZE=3D2>----------------begin console output</FONT>
<BR><FONT =
SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; (c) Copyright Hewlett-Packard Company, 1991, =
1992</FONT>
<BR><FONT SIZE=3D2>Portions of this code are (c) Copyright Samsung =
Electronics Co., Ltd, 91, 92 </FONT>
</P>

<P><FONT SIZE=3D2>PDC ROM rev. 1.2</FONT>
<BR><FONT SIZE=3D2>IODC ROM rev. 1.1</FONT>
<BR><FONT SIZE=3D2>64 MB of memory have been configured.</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Selecting a system to boot.</FONT>
<BR><FONT SIZE=3D2>To stop selection process, press and hold the ESCAPE =
key.....</FONT>
</P>

<P><FONT SIZE=3D2>Booting from:&nbsp;&nbsp;&nbsp;&nbsp; =
scsi.6.0&nbsp;&nbsp;&nbsp;&nbsp; TOSHIBA CD-ROM XM-3501TA</FONT>
</P>

<P><FONT SIZE=3D2>Soft booted.</FONT>
<BR><FONT SIZE=3D2>palo ipl bame@noam Tue Oct 31 14:18:02 MST =
2000</FONT>
<BR><FONT SIZE=3D2>0/vmlinux 2140145 bytes @ 0x6f9800</FONT>
<BR><FONT SIZE=3D2>0/palo-cmdline '0/vmlinux ROOT=3D/ TERM=3DLINUX =
root=3D/dev/scd0'</FONT>
<BR><FONT SIZE=3D2>Kernel: partition 0 file /vmlinux</FONT>
<BR><FONT SIZE=3D2>ELF32 executable</FONT>
</P>

<P><FONT SIZE=3D2>Entry 00100150 first 00100000 n 4</FONT>
<BR><FONT SIZE=3D2>Segment 0 load 00100000 size 1460344 mediaptr =
0x1000</FONT>
<BR><FONT SIZE=3D2>Segment 1 load 00266000 size 179048 mediaptr =
0x166000</FONT>
<BR><FONT SIZE=3D2>Segment 2 load 00294000 size 109876 mediaptr =
0x192000</FONT>
<BR><FONT SIZE=3D2>Segment 3 load 002b0000 size 8192 mediaptr =
0x1ad000</FONT>
<BR><FONT SIZE=3D2>branching to kernel entry point 0x00100150</FONT>
<BR><FONT SIZE=3D2>PDC Console Initialized</FONT>
<BR><FONT SIZE=3D2>The 32-bit Kernel has started...</FONT>
<BR><FONT SIZE=3D2>Enabled FP coprocessor</FONT>
<BR><FONT SIZE=3D2>Free memory starts at: 0xc02da000</FONT>
<BR><FONT SIZE=3D2>(0x504d6c,0x504d6c,0x0,0x0)</FONT>
<BR><FONT SIZE=3D2>PALO command line: 'ROOT=3D/ TERM=3DLINUX =
root=3D/dev/scd0'</FONT>
<BR><FONT SIZE=3D2>PALO initrd 0-0</FONT>
<BR><FONT SIZE=3D2>model&nbsp;&nbsp; 00003100 00000481 00000000 =
00000000 77a94524 ffffffff 00000004 0000000a 0000000a</FONT>
<BR><FONT SIZE=3D2>vers&nbsp;&nbsp;&nbsp; 00000009</FONT>
<BR><FONT SIZE=3D2>CPUID vers 0 rev 0</FONT>
<BR><FONT SIZE=3D2>Searching for devices in PDC firmware... processor =
hpa 0xfffbe000</FONT>
<BR><FONT SIZE=3D2>&nbsp;an older box...</FONT>
<BR><FONT SIZE=3D2>Found devices:</FONT>
<BR><FONT SIZE=3D2>1. Stinger Optional Graphics (10) at 0xf4000000, =
versions 0x6, 0x0, 0x77, 0x0, 0x0</FONT>
<BR><FONT SIZE=3D2>2. Scorpio Core BA (11) at 0xf082f000, versions 0x7, =
0x0, 0x70, 0x0, 0x0</FONT>
<BR><FONT SIZE=3D2>3. Scorpio Core SCSI (10) at 0xf0825000, versions =
0x7, 0x0, 0x71, 0x0, 0x0</FONT>
<BR><FONT SIZE=3D2>4. Scorpio Core LAN (802.3) (10) at 0xf0826000, =
versions 0x7, 0x0, 0x72, 0x0, 0x0</FONT>
<BR><FONT SIZE=3D2>5. Scorpio Core HIL (10) at 0xf0821000, versions =
0x7, 0x0, 0x73, 0x0, 0x0</FONT>
<BR><FONT SIZE=3D2>6. Scorpio Core RS-232 (10) at 0xf0823000, versions =
0x7, 0x0, 0x75, 0x0, 0x0</FONT>
<BR><FONT SIZE=3D2>7. Scorpio Core RS-232 (10) at 0xf0822000, versions =
0x7, 0x0, 0x75, 0x0, 0x0</FONT>
<BR><FONT SIZE=3D2>8. Scorpio Core Centronics (10) at 0xf0824000, =
versions 0x7, 0x0, 0x74, 0x0, 0x0</FONT>
<BR><FONT SIZE=3D2>9. Scorpio Audio (10) at 0xf1000000, versions 0x7, =
0x0, 0x7b, 0x0, 0x0</FONT>
<BR><FONT SIZE=3D2>10. Scorpio EISA BA (11) at 0xfc000000, versions =
0x7, 0x0, 0x76, 0x0, 0x0</FONT>
<BR><FONT SIZE=3D2>11. Scorpio (715/50) (0) at 0xfffbe000, versions =
0x310, 0x0, 0x4, 0x0, 0x81</FONT>
<BR><FONT SIZE=3D2>12. Scorpio (1) at 0xfffbf000, versions 0x17, 0x0, =
0x9, 0x0, 0x0</FONT>
<BR><FONT SIZE=3D2>That's a total of 12 devices.</FONT>
<BR><FONT SIZE=3D2>CPU(s): 1 x PA7100 (PCX-T) at 50.000000 MHz</FONT>
<BR><FONT SIZE=3D2>Linux version 2.4.0-test6 =
(pjlahaie@elenuial.thepuffingroup.com) (gcc version 2.96 20000925 =
(experimental)) #32 Mon Nov 6 10:20:58 EST 2000</FONT></P>

<P><FONT SIZE=3D2>free_bootmem(0x2da800, 0x3d25800)</FONT>
<BR><FONT SIZE=3D2>initrd: 00000000-00000000</FONT>
<BR><FONT SIZE=3D2>pagetable_init</FONT>
<BR><FONT SIZE=3D2>On node 0 totalpages: 16384</FONT>
<BR><FONT SIZE=3D2>zone(0): 8192 pages.</FONT>
<BR><FONT SIZE=3D2>zone(1): 8192 pages.</FONT>
<BR><FONT SIZE=3D2>zone(2): 0 pages.</FONT>
<BR><FONT SIZE=3D2>Kernel command line: ROOT=3D/ TERM=3DLINUX =
root=3D/dev/scd0</FONT>
<BR><FONT SIZE=3D2>trap_init</FONT>
<BR><FONT SIZE=3D2>Calibrating delay loop... 49.77 BogoMIPS</FONT>
<BR><FONT SIZE=3D2>Memory: 61388k available</FONT>
<BR><FONT SIZE=3D2>Dentry-cache hash table entries: 8192 (order: 4, =
65536 bytes)</FONT>
<BR><FONT SIZE=3D2>Buffer-cache hash table entries: 4096 (order: 2, =
16384 bytes)</FONT>
<BR><FONT SIZE=3D2>Page-cache hash table entries: 16384 (order: 4, =
65536 bytes)</FONT>
<BR><FONT SIZE=3D2>Inode-cache hash table entries: 4096 (order: 3, =
32768 bytes)</FONT>
<BR><FONT SIZE=3D2>POSIX conformance testing by UNIFIX</FONT>
<BR><FONT SIZE=3D2>ASP version 1 at 0xf0800000 found.</FONT>
<BR><FONT SIZE=3D2>Found i82596 at 0xf0826000, IRQ 87</FONT>
<BR><FONT SIZE=3D2>early initialization of device eth0 is =
deferred</FONT>
<BR><FONT SIZE=3D2>Found HIL at 0xf0821000, IRQ 94</FONT>
<BR><FONT SIZE=3D2>HIL: no keyboard present.</FONT>
<BR><FONT SIZE=3D2>Warning : device (10, 0x7, 0x0, 0x73, 0x0) NOT =
claimed by HIL 712, 715 or similiar</FONT>
<BR><FONT SIZE=3D2>Linux NET4.0 for Linux 2.4</FONT>
<BR><FONT SIZE=3D2>Based upon Swansea University Computer Society =
NET3.039</FONT>
<BR><FONT SIZE=3D2>NET4: Unix domain sockets 1.0/SMP for Linux =
NET4.0.</FONT>
<BR><FONT SIZE=3D2>NET4: Linux TCP/IP 1.0 for NET4.0</FONT>
<BR><FONT SIZE=3D2>IP Protocols: ICMP, UDP, TCP</FONT>
<BR><FONT SIZE=3D2>IP: routing cache hash table of 512 buckets, =
4Kbytes</FONT>
<BR><FONT SIZE=3D2>TCP: Hash tables configured (established 4096 bind =
4096)</FONT>
<BR><FONT SIZE=3D2>Starting kswapd v1.7</FONT>
<BR><FONT SIZE=3D2>pty: 256 Unix98 ptys configured</FONT>
<BR><FONT SIZE=3D2>lp: driver loaded but no devices found</FONT>
<BR><FONT SIZE=3D2>RAMDISK driver initialized: 16 RAM disks of 4096K =
size 1024 blocksize</FONT>
<BR><FONT SIZE=3D2>sim700: Couldn't get consistent shared memory</FONT>
<BR><FONT SIZE=3D2>sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, =
IRQ 86</FONT>
<BR><FONT SIZE=3D2>scsi0: Revision 0x0</FONT>
<BR><FONT SIZE=3D2>Post test1, istat 05, sstat0 00, dstat 84</FONT>
<BR><FONT SIZE=3D2>sim700: WARNING IRQ probe failed, (returned =
0)</FONT>
<BR><FONT SIZE=3D2>scsi0: WARNING: target data areas are not dma =
coherent!</FONT>
<BR><FONT SIZE=3D2>scsi0: test 1 completed ok.</FONT>
<BR><FONT SIZE=3D2>scsi0: sim700_intr_handle() called with no =
interrupt</FONT>
<BR><FONT SIZE=3D2>scsi0 : LASI/Simple 53c7xx</FONT>
<BR><FONT SIZE=3D2>scsi : 1 host.</FONT>
<BR><FONT SIZE=3D2>&nbsp; Vendor: TOSHIBA&nbsp;&nbsp; Model: CD-ROM =
XM-3501TA&nbsp; Rev: 3054</FONT>
<BR><FONT SIZE=3D2>&nbsp; Type:&nbsp;&nbsp; =
CD-ROM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ANSI SCSI revision: 02</FONT>
<BR><FONT SIZE=3D2>Detected scsi CD-ROM sr0 at scsi0, channel 0, id 6, =
lun 0</FONT>
<BR><FONT SIZE=3D2>scsi : detected 1 SCSI cdrom total.</FONT>
<BR><FONT SIZE=3D2>Uniform CD-ROM driver Revision: 3.11</FONT>
<BR><FONT SIZE=3D2>82596.c: MAC of HP700 LAN blindely read from the =
prom!</FONT>
<BR><FONT SIZE=3D2>eth0: Couldn't get consistent shared memory</FONT>
<BR><FONT SIZE=3D2>eth0: 82596 at 0xf0826000, 08 00 09 42 1B 37 IRQ =
87.</FONT>
<BR><FONT SIZE=3D2>82596.c $Revision: 1.14 $</FONT>
<BR><FONT SIZE=3D2>Serial driver version 5.01 (2000-05-29) with =
MANY_PORTS SHARE_IRQ SERIAL_PCI enabled</FONT>
</P>

<P><FONT SIZE=3D2>Dumping Stack from c3fc4000 to c3fc4bc0:</FONT>
<BR><FONT SIZE=3D2>4000 00000000 00000140 00000000 00000000 c027a46c =
00000001 00000000 ffffffff</FONT>
<BR><FONT SIZE=3D2>4020 00000000 00000000 00000000 00000000 00000000 =
00000000 ffffffff c027a384</FONT>
<BR><FONT SIZE=3D2>&nbsp;[...]</FONT>
<BR><FONT SIZE=3D2>4ba0 ffffffff bffff5ff ffffff7f c01046e0 ffffbeff =
f7b7eddf 5fffffdf feefffff</FONT>
</P>

<P><FONT SIZE=3D2>Data access rights fault in kernel: Code=3D26 =
regs=3Dc3fc4980 (Addr=3D00000003)</FONT>
</P>

<P><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp; =
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI</FONT>
<BR><FONT SIZE=3D2>PSW: 00000000000001000000000000001010</FONT>
<BR><FONT SIZE=3D2>r0-3&nbsp;&nbsp;&nbsp;&nbsp; 00000000 c0221800 =
c011e9f8 c3fce420</FONT>
<BR><FONT SIZE=3D2>r4-7&nbsp;&nbsp;&nbsp;&nbsp; c3fce200 c0244f10 =
00000008 f0823800</FONT>
<BR><FONT SIZE=3D2>r8-11&nbsp;&nbsp;&nbsp; 00000003 00000007 c0191568 =
c02c60a4</FONT>
<BR><FONT SIZE=3D2>r12-15&nbsp;&nbsp; fffffffc c0245000 c0245000 =
c02d72b8</FONT>
<BR><FONT SIZE=3D2>r16-19&nbsp;&nbsp; c0245000 c0245000 c02c6028 =
00000000</FONT>
<BR><FONT SIZE=3D2>r20-23&nbsp;&nbsp; c3fce234 f0823807 f0823800 =
0000000a</FONT>
<BR><FONT SIZE=3D2>r24-27&nbsp;&nbsp; ffffffff c3fce420 c3fce200 =
c0266000</FONT>
<BR><FONT SIZE=3D2>r28-31&nbsp;&nbsp; ffffffff 00000240 c3fc4bc0 =
c012dfc0</FONT>
<BR><FONT SIZE=3D2>sr0-4&nbsp;&nbsp;&nbsp; 00000000 00000000 00000000 =
00000000</FONT>
<BR><FONT SIZE=3D2>sr4-8&nbsp;&nbsp;&nbsp; 00000000 00000000 00000000 =
00000000</FONT>
</P>

<P><FONT SIZE=3D2>IASQ: 00000000 00000000 IAOQ: c011e710 =
c011e714</FONT>
<BR><FONT SIZE=3D2>&nbsp;IIR: 0f881093&nbsp;&nbsp;&nbsp; ISR: =
00000000&nbsp; IOR: 00000003</FONT>
<BR><FONT SIZE=3D2>ORIG_R28: 00000058</FONT>
</P>

<P><FONT SIZE=3D2>----------------end console output</FONT>
</P>

<P><FONT SIZE=3D2>thanks,</FONT>
<BR><FONT SIZE=3D2>Robert Duncan</FONT>
<BR><FONT SIZE=3D2>Nortelnetworks</FONT>
</P>

</BODY>
</HTML>
------_=_NextPart_001_01C04F53.576F0F70--


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] CD-ROM 715/50 boot dies after serial driver...
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Xref: news.gmane.org gmane.linux.ports.parisc:8470

On Wed, Nov 15, 2000 at 05:28:13PM -0500, Robert Duncan wrote:
> Greetings,
> I have downloaded the .5 Beta CDROM image, burned it and get a "fault in
> kernel" after the "Serial driver ... enabled" message when booting on my
> 715/50.  This happens with either graphics or serial console configured in
> NVRAM.
> 
> Has anyone else seen this error?

I get exactly the same on my 715/75.  Havn't had time to investigate
yet.

Richard


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From: Andreas Thienemann <andreas@bawue.de>
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Subject: Re: [parisc-linux] 250/1 doesn't boot but dumps stack
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Grant Grundler wrote:

> > IASQ: 00000000 00000000 IAOQ: c029c264 c029c268
> >  IIR: 0e681096    ISR: 00000000  IOR: 00000004
> > ORIG_R28: 00000000
> Smells like a driver bug.
> Can you look up IOAQ and GR2 (c029c264 and c029c248) in System.map file?
Okay, here we go (thanks for the build-tool information...)

System Map output:

0xc029c264	__init_begin+264
0xc029x248	__init_begin+248

andreas


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From: Kailashnath V Rampure <kailasr@webcash.com>
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Subject: [parisc-linux] Apache package.
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--=====================_108207293==_.ALT
Content-Type: text/plain; charset="us-ascii"; format=flowed

Hi

I tried to build apache_1.3.12 on HP a class server. But I have error. I 
have tried to check the site 
ftp://ftp.debian.org/debian/dists/unstable/main/binary-hppa/
I could not find one. I found some apache-doc etc.

Can any on point me where I can try.
Regards
Kailas
--=====================_108207293==_.ALT
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<html>
Hi <br>
<br>
I tried to build apache_1.3.12 on HP a class server. But I have error. I
have tried to check the site
<a href="ftp://ftp.debian.org/debian/dists/unstable/main/binary-hppa/" eudora="autourl"><font color="#0000FF"><u>ftp://ftp.debian.org/debian/dists/unstable/main/binary-hppa/<br>
</a></u></font>I could not find one. I found some apache-doc etc.<br>
<br>
Can any on point me where I can try.<br>
Regards<br>
Kailas</html>

--=====================_108207293==_.ALT--


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= I tried to build apache_1.3.12 on HP a class server. But I have error. I 
= have tried to check the site 
= ftp://ftp.debian.org/debian/dists/unstable/main/binary-hppa/
= I could not find one. I found some apache-doc etc.

We are still working on some kernel features which are required to
support Apache (system 5 shared memory).

	-P


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For the next few months I have an HP T600/6 I can use tto help test what's available so far.

However, I'm still a little vague on what I need to do in order to 
compile/load/test, etc.  Is there any kind of HOWTO document (even just a 
rudimentary one) out there somewhere?

Thanks.

Donovan Young
donovan@water.com


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From: Cary Coutant <cary@cup.hp.com>
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Subject: Re: [parisc-linux] Help with posix_types.h
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>You have certainly reserved a thread register in the ABI, right?  If
>not, do it ASAP.

On PA-RISC, the thread pointer is kept in the read-only control register 
CR 27.

For user-thread implementations, we provided a kernel API to change the 
contents of the register.

-cary


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To: Cary Coutant <cary@cup.hp.com>
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Cary Coutant <cary@cup.hp.com> writes:

> On PA-RISC, the thread pointer is kept in the read-only control register 
> CR 27.
> 
> For user-thread implementations, we provided a kernel API to change the 
> contents of the register.

This works fine for a 1:1 thread implementation but adds significant
runtime hits for a m:n implementation.  The latter is the direction we
are heading.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: Re: Single-stepping
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>   I've been helping Alan Modra out with kernel changes to support
> single stepping for gdb.  Paul Bame suggested I bounced our ideas
> off you in case you (or anyone else) had any comments.  I havn't
> actually committed my changes yet.
>

I've decided to respond to the whole list, since others are now
participating in the discussion.

> The basic approach is to use the recovery counter to generate
> a trap every instruction.  The scheme is complicated because a
> suspended process may or may not return to user space via an RFI.
>

There is no easy way to do single stepping on parisc. So any single
stepping design will be complicated.

> If it was suspended as a result of an interrupt then we can
> simply set PSW bit R in the tasks saved registers and it will
> get loaded by the RFI.  On every task switch I set the
> recovery counter to 0, just in case the new process is being
> single-stepped.
>
> If a process is suspended during a syscall, then there is no
> RFI on the return path to userland, and we have to handle things
> differently.  I have changed the syscall return path such that
> it loads the recovery counter with 3 before updating the PSW
> with a value from the tasks saved registers.  If that PSW has
> the R bit set, then the count of 3 will generate a trap on the
> first instruction following the branch back to user space.
> Note that PSW wasn't previously restored on the syscall return
> path.
>

Just to be clear, it is impossible to restore the entire PSW without
an RFI. So, I assume you are referring to the system mask subset of
the PSW that can be manipulated by the ssm,rsm, and mtsm instructions.

You mention restoring from the task's saved registers, but we currently
do not save the system mask during a syscall (because it should be the
same for all processes). Have you added code to do that also? If not,
you are restoring from whatever the state was at the last interruption.
Which in this case works (since the R bit state will be changed
by another process while the debugged process is suspended, this should
guarantee that the R bit state is up to date), but it seems a little ugly.
In my opinion, you should just be checking a bit in the ptrace flags
in the task structure, and setting the R bit with an ssm instruction
based on that.

> To avoid further complications of interrupts during the three
> instructions when the recovery counter is decrementing, whenever
> we set the R bit, we also clear the I bit to disable interrupts.

Yuck, but I agree that it would be messier to have to deal with this in
the interrupt handlers.  Please make sure that a comment is added that
explains what you are doing, and clearly documents the dependency on the
number of remaining instructions before we return to user privilege level.
I assume you restore the I bit in the recovery counter trap handler.  I
can think of alternative ways of doing this, but they are probably just as
ugly (e.g. one possibility would be to do an rfi to set the L bit).

>
> Nullified instructions are handled by the controlling process
> manually moving the childs IAOQ over the instruction without
> actually setting it running, because the recovery counter isn't
> decremented for nullified instructions.

Does this code properly handle branches in the delay slot of another
branch? (you need to make sure you are not advancing the queues by just
adding 4 to each element).  One concern I have about this method is that
the userland debugger has to cooperate to make this design work, i.e. the
single stepping is not accomplished entirely within the kernel, so we
cannot easily change the design for single stepping at a later date.

I wonder if it is necessary to do this.  So what if we don't stop on the
nullified instruction.  Since it is nullified, it doesn't actually do
anything, so why does the user have to see it, i.e. just let the recovery
counter trap happen on the next truly executed instruction (i.e. the
debugger performs a "double step" in this case).  Am I missing something
here?

>
> I need to do some more testing before committing this, but would
> welcome any comments on the basic approach taken, areas I have
> mis-understood, or problems with it that might not yet have
> occurred to me.

OK, well here are some issues that you didn't mention, so I don't
know whether or not you addressed them:

    1) When single stepping over a syscall, when do you actually stop the
    single stepping and execute the syscall?  Hopefully you are not
    allowing single stepping after the gate instruction on the gateway
    page (and returning control to a non privileged debugging process).
    The recovery counter trap should detect when the user code gets
    to the gateway page.

    2) Does your solution properly handle single stepping into and out of
    a signal handler?  Note that the debugger will trap the signal as part
    of this process. Since the return is handled through a hidden syscall
    you may not have to do anything special here.

Note that HP-UX does not use the recovery counter for single stepping.  I
made a few phone calls to various engineers to find out what the design
process was, and why they chose the solution they did, but I could not
find anyone who knew.  Looking at the code in HP-UX it looks like someone
implemented that code a long time ago, and some of the engineers who have
worked on it since don't understand it, because some of the comments added
since then clearly show a lack of understanding of what is really going
on.

Others on this list have mentioned that MPE does use the recovery counter
for single stepping. Of course, MPE is not a Unix clone, so just because
it could be done on MPE doesn't mean that the recovery counter can cover
all cases on Unix (e.g. I have no idea how signals and syscalls are
implemented on MPE). But since I have no idea why the recovery counter
was not used for HP-UX, I can't say it is the wrong way to go. I can't
think of anything that will definitely rule it out, I'm just a little
uncomfortable with the fact that HP-UX chose not to use it.

One advantage of the HP-UX method is that it completely encapsulates the
single stepping inside the kernel, so it can be changed if necessary,
without having to modify gdb (and having to worry about old versions of
gdb).

Anyway, for reference, HP-UX does single stepping by using a combination
of the taken branch trap, and loading the instruction queues such that the
front of the queue points to the next instruction to be single stepped and
the back of the queue points to the first of two break instructions on a
"break" page.  It does NOT insert break instructions into the code, so it
does not adversely affect execution on a SMP machine.  Note that we
already put a bunch of break instructions before the syscall entry point
on the gateway page, so it would be easy to use our gateway page for the
"break page".  This way, if the single stepped instruction branches, a
taken branch trap will be taken (which is important in the case where the
branch nullifies its delay slot).  Otherwise, the instruction will be
executed and then the break instruction at the known location on the
"break" page will be executed.  If the single stepped instruction
nullifies the next instruction, the second break instruction on the
"break" page will be executed.

Note that this is the short explanation. It is not as simple as it sounds.
One major complication is that branches with links don't work properly
with the instruction queue magic, so the link register has to be updated
in the taken branch trap handler. Also branch externals won't update
the space of the space queue tail properly (again, that has to be fixed
in the taken branch handler). I can provide more details if the recovery
counter method doesn't work out.

Sincerely,

John Marvin
jsm@fc.hp.com


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From: "Thomas Marteau" <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] nfsroot - 712/60 - RPC - help
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Hi Jack,

> (c) Copyright 1990-1993, Hewlett-Packard Company.
> All rights reserved
>
> Press <ESCAPE> to stop boot sequence.
> Selecting a system to boot.
>
> Booting
> palo ipl jkp2866@redtower Wed Nov 15 12:44:21 CST 2000
> 0/vmlinux 1606438 bytes @ 0x6800
> 0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs
nfsroot=192.68.1.11:/tftpboot/pancho '

Are you sure that the command line is rigth? Is your Server address is
192.-68-.1.11
Here is probably your mistake!

Bye,

ESIEE Team
Visit http://www.esiee.fr/puffin

> Kernel: partition 0 file /vmlinux
> ELF32 executable
>
> Entry 00100000 first 00100000 n 4
> Segment 0 load 00100000 size 1097900 mediaptr 0x1000
> Segment 1 load 0020e000 size 150520 mediaptr 0x10e000
> Segment 2 load 00234000 size 55900 mediaptr 0x133000
> Segment 3 load 00244000 size 8192 mediaptr 0x141000
> branching to kernel entry point 0x00100000
> Set default PSW W bit to 0
> PDC Console Initialized
> The 32-bit Kernel has started...
> Enabled FP coprocessor
> Free memory starts at: 0xc026e000
> start_parisc(0x504d6c,0x504d6c,0x0,0x0)
> PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs
nfsroot=192.68.1.11:/tftpboot/pancho '
> PALO initrd 0-0
> model   00006000 00000481 00000000 00000000 77564139 00000000 00000004
00000072 00000072
> vers    0000000a
> CPUID vers 0 rev 0
> Searching for devices in PDC firmware... processor hpa 0xfffbe000
>   an older box...
> Found devices


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: Single-stepping
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Hi John,

On Thu, Nov 16, 2000 at 02:01:12AM -0700, John Marvin wrote:
> Just to be clear, it is impossible to restore the entire PSW without
> an RFI. So, I assume you are referring to the system mask subset of
> the PSW that can be manipulated by the ssm,rsm, and mtsm instructions.

Yes, mtsm in this case.

> You mention restoring from the task's saved registers, but we currently
> do not save the system mask during a syscall (because it should be the
> same for all processes). Have you added code to do that also? If not,

Yes I have.

> you are restoring from whatever the state was at the last interruption.
> Which in this case works (since the R bit state will be changed
> by another process while the debugged process is suspended, this should
> guarantee that the R bit state is up to date), but it seems a little ugly.
> In my opinion, you should just be checking a bit in the ptrace flags
> in the task structure, and setting the R bit with an ssm instruction
> based on that.

Sounds better, I'll look in to it.

> > Nullified instructions are handled by the controlling process
> > manually moving the childs IAOQ over the instruction without
> > actually setting it running, because the recovery counter isn't
> > decremented for nullified instructions.

Sorry, I worded that very badly.  The code that moves the childs
IAOQ on is in the kernel, invoked as a result of the controlling
process calling ptrace(PTRACE_SINGLESTEP...) when the childs N
bit is set.

> Does this code properly handle branches in the delay slot of another
> branch? (you need to make sure you are not advancing the queues by just
> adding 4 to each element).  One concern I have about this method is that

Current code does

    /* Nullified, just crank over the queue. */
    task_regs(child)->iaoq[0] = task_regs(child)->iaoq[1];
    task_regs(child)->iasq[0] = task_regs(child)->iasq[1];
    task_regs(child)->iaoq[1] = task_regs(child)->iaoq[0] + 4;

Does that look right to you?

> I wonder if it is necessary to do this.  So what if we don't stop on the
> nullified instruction.  Since it is nullified, it doesn't actually do
> anything, so why does the user have to see it, i.e. just let the recovery
> counter trap happen on the next truly executed instruction (i.e. the
> debugger performs a "double step" in this case).  Am I missing something
> here?

I don't see why we really need to stop on a nullified instruction, but
I'll wait for Alan to comment as he wrote this initially.

>     1) When single stepping over a syscall, when do you actually stop the
>     single stepping and execute the syscall?  Hopefully you are not
>     allowing single stepping after the gate instruction on the gateway
>     page (and returning control to a non privileged debugging process).
>     The recovery counter trap should detect when the user code gets
>     to the gateway page.

At the moment my test harness notes IAOQ=0x100 and stops single stepping,
but obviously the kernel needs to enforce that.

>     2) Does your solution properly handle single stepping into and out of
>     a signal handler?  Note that the debugger will trap the signal as part
>     of this process. Since the return is handled through a hidden syscall
>     you may not have to do anything special here.

Havn't looked at signal handling yet.

> Note that HP-UX does not use the recovery counter for single stepping.  I

Thanks for the description of how HP-UX does it.  I'll stick with
the recovery counter for now as it does seem to be basically working.
I'll also try to ensure that it is completely encapsulated within the kernel
so it is less painful to change later, if need be.

Thanks,
  Richard


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Single-stepping
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:8480

On Wed, Nov 15, 2000 at 02:49:02PM -0500, John David Anglin wrote:
> >   I've been helping Alan Modra out with kernel changes to support
> > single stepping for gdb.  Paul Bame suggested I bounced our ideas
> > off you in case you (or anyone else) had any comments.  I havn't
> > actually committed my changes yet.
> > 
> > The basic approach is to use the recovery counter to generate
> > a trap every instruction.  The scheme is complicated because a
> > suspended process may or may not return to user space via an RFI.
> 
> I really don't know enough to comment on the implementation choice.  Why
> did you decide on this approach as opposed to inserting breaks and
> enabling the taken branch branch trap (T)?  It would appear that the recovery
> counter was intended to provide software recovery from hardware faults
> in fault tolerant systems.  Possibly, Grant could comment on whether
> it is actually useful for this purpose.

Alan Modra made those early decisions, but I gather that he went
for the recovery counter because it at least appears to be rather
more straightforward.

Richard


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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: Re: Single-stepping
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Richard,

>
> Sorry, I worded that very badly.  The code that moves the childs
> IAOQ on is in the kernel, invoked as a result of the controlling
> process calling ptrace(PTRACE_SINGLESTEP...) when the childs N
> bit is set.
>

Great.

> > Does this code properly handle branches in the delay slot of another
> > branch? (you need to make sure you are not advancing the queues by just
> > adding 4 to each element).  One concern I have about this method is that
>
> Current code does
>
>     /* Nullified, just crank over the queue. */
>     task_regs(child)->iaoq[0] = task_regs(child)->iaoq[1];
>     task_regs(child)->iasq[0] = task_regs(child)->iasq[1];
>     task_regs(child)->iaoq[1] = task_regs(child)->iaoq[0] + 4;
>
> Does that look right to you?
>

Yes, that is the correct way to do it (I'll assume the duplicated line
is just a cut/paste error).

> > I wonder if it is necessary to do this.  So what if we don't stop on the
> > nullified instruction.  Since it is nullified, it doesn't actually do
> > anything, so why does the user have to see it, i.e. just let the recovery
> > counter trap happen on the next truly executed instruction (i.e. the
> > debugger performs a "double step" in this case).  Am I missing something
> > here?
>
> I don't see why we really need to stop on a nullified instruction, but
> I'll wait for Alan to comment as he wrote this initially.
>

Given the above, i.e. that this is being handled in the kernel anyway, I
guess I don't really care which way this goes. Probably it is best to
do it whatever way gdb on hp-ux presents it.

> >     1) When single stepping over a syscall, when do you actually stop the
> >     single stepping and execute the syscall?  Hopefully you are not
> >     allowing single stepping after the gate instruction on the gateway
> >     page (and returning control to a non privileged debugging process).
> >     The recovery counter trap should detect when the user code gets
> >     to the gateway page.
>
> At the moment my test harness notes IAOQ=0x100 and stops single stepping,
> but obviously the kernel needs to enforce that.
>
You should also be checking the space. But yes, the kernel needs to enforce
this for security reasons. You should be able to do it in the recovery
counter trap handler (rather than having to test for it in the syscall
path, which affects all processes).

> >     2) Does your solution properly handle single stepping into and out of
> >     a signal handler?  Note that the debugger will trap the signal as part
> >     of this process. Since the return is handled through a hidden syscall
> >     you may not have to do anything special here.
>
> Havn't looked at signal handling yet.
>

I'm not sure that there is a real issue here or not.  HP-UX has some code
for single stepping with respect to signal handlers, but I believe it may
only be necessary due to the saved state necessary as part of the iaoq
manipulation.  Obviously you should test this case.

> > Note that HP-UX does not use the recovery counter for single stepping.  I
>
> Thanks for the description of how HP-UX does it.  I'll stick with
> the recovery counter for now as it does seem to be basically working.
> I'll also try to ensure that it is completely encapsulated within the kernel
> so it is less painful to change later, if need be.
>

Sounds ok with me. And as long as there are no corner cases, it probably
is the best solution, assuming we don't find another application for
the recovery counter.

John


From - Thu Nov 08 21:14:10 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Single-stepping
Date: Thu, 16 Nov 2000 13:20:17 +0000
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Cc: parisc-linux@puffin.external.hp.com
To: John Marvin <jsm@udlkern.fc.hp.com>
Original-X-From: rhirst@linuxcare.com  Thu Nov 16 06:20:51 2000
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Xref: news.gmane.org gmane.linux.ports.parisc:8482

On Thu, Nov 16, 2000 at 05:44:55AM -0700, John Marvin wrote:
> > Current code does
> >
> >     /* Nullified, just crank over the queue. */
> >     task_regs(child)->iaoq[0] = task_regs(child)->iaoq[1];
> >     task_regs(child)->iasq[0] = task_regs(child)->iasq[1];
> >     task_regs(child)->iaoq[1] = task_regs(child)->iaoq[0] + 4;
> >
> > Does that look right to you?
> 
> Yes, that is the correct way to do it (I'll assume the duplicated line
> is just a cut/paste error).

It's not duplicated (iaoq v. iasq).

> > At the moment my test harness notes IAOQ=0x100 and stops single stepping,
> > but obviously the kernel needs to enforce that.
> >
> You should also be checking the space. But yes, the kernel needs to enforce
> this for security reasons. You should be able to do it in the recovery
> counter trap handler (rather than having to test for it in the syscall
> path, which affects all processes).

I might come back to you on that when I've thought some more.

Thanks,
  Richard


From - Thu Nov 08 21:14:10 2018
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From: Ian Zink <ian.zink@maryville.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] I got the serial console to work...
Date: Thu, 16 Nov 2000 09:46:18 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:8483

After reading some posts, I went back to trying to use to a serial console
to no avail.. Then.. suddenly it hit me. Do'y. The cable I was using was
straight-through not Cross-over. Now I have the 712 all booted and running
Debian. Very cool, indeed. Thanks for all for your help. I think I will
still work on building a STI ISO for the fun of it :) 


Thanks much,

Ian Zink, Systems Engineer
Maryville Technologies
540 Maryville Centre, Suite 300
St. Louis, MO  63141
636/519-4182
(FAX) 636/519-4141
ian.zink@maryville.com  
www.maryville.com



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From: "Thomas Marteau" <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] The config for 712 hp boxes
Date: Thu, 16 Nov 2000 18:18:58 +0100
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To: "Grant Grundler" <grundler@cup.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:8484

This is a multi-part message in MIME format.

------=_NextPart_000_00A5_01C04FF9.B01CC3A0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit

Hi all,

    Here is the config file we use to compile a new kernel from the test10
sources. We have the console with the STI and an extra term on the serial
port.
Also, in this mail, you have the diff between our hp_keyb.c and the official
one but it gives you the ~ and the ' and others scancodes.
All this works for the 712 boxes. We were forced to reboot our box to test
the new kernel but before the uptime was 3 days and 4 hours during which we
ran dselect and did some compiling.

All the files inclosed are downloadable at
http://www.esiee.fr/~puffin/code/dl.html

Bye,
ESIEE Team

------=_NextPart_000_00A5_01C04FF9.B01CC3A0
Content-Type: application/octet-stream;
	name="keyb.patch"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="keyb.patch"

diff -urN linux2/drivers/char/hp_keyb.c linux/drivers/char/hp_keyb.c=0A=
--- linux2/drivers/char/hp_keyb.c	Thu Nov 16 17:39:03 2000=0A=
+++ linux/drivers/char/hp_keyb.c	Thu Nov 16 17:18:54 2000=0A=
@@ -70,12 +70,12 @@=0A=
 #define K_F8		0x42=0A=
 #define K_F9		0x43=0A=
 #define K_F10		0x44=0A=
-#define K_F11		87=0A=
-#define K_F12		88=0A=
+#define K_F11		0x57=0A=
+#define K_F12		0x58=0A=
 #define K_PRNT		0x54=0A=
-#define K_SCRL		70=0A=
-#define K_BRK		119=0A=
-#define K_AGR		K_NONE=0A=
+#define K_SCRL		0x46=0A=
+#define K_BRK		0x77=0A=
+#define K_AGR		0x29=0A=
 #define K_1		0x02=0A=
 #define K_2		0x03=0A=
 #define K_3		0x04=0A=
@@ -89,10 +89,10 @@=0A=
 #define K_MINS		0x0c=0A=
 #define K_EQLS		0x0d=0A=
 #define K_BKSP		0x0e=0A=
-#define K_INS		110=0A=
-#define K_HOME		102=0A=
-#define K_PGUP		104=0A=
-#define K_NUML		69=0A=
+#define K_INS		0x6e=0A=
+#define K_HOME		0x66=0A=
+#define K_PGUP		0x68=0A=
+#define K_NUML		0x45=0A=
 #define KP_SLH		0x62=0A=
 #define KP_STR		0x37=0A=
 #define KP_MNS		0x4a=0A=
@@ -111,13 +111,13 @@=0A=
 #define K_RSBK		0x1b=0A=
 #define K_ENTR		0x1c=0A=
 #define K_DEL		111=0A=
-#define K_END		107=0A=
-#define K_PGDN		109=0A=
+#define K_END		0x6b=0A=
+#define K_PGDN		0x6d=0A=
 #define KP_7		0x47=0A=
 #define KP_8		0x48=0A=
 #define KP_9		0x49=0A=
-#define KP_PLS		118=0A=
-#define K_CAPS		58=0A=
+#define KP_PLS		0x4e=0A=
+#define K_CAPS		0x3a=0A=
 #define K_A		0x1e=0A=
 #define K_S		0x1f=0A=
 #define K_D		0x20=0A=
@@ -146,7 +146,7 @@=0A=
 #define K_DOT		0x34=0A=
 #define K_FSLH		0x35=0A=
 #define K_RSFT		0x36=0A=
-#define K_UP		103	=0A=
+#define K_UP		0x67=0A=
 #define KP_1		0x4f=0A=
 #define KP_2		0x50=0A=
 #define KP_3		0x51=0A=
@@ -156,11 +156,11 @@=0A=
 #define K_SPCE		0x39=0A=
 #define K_RALT		0x64=0A=
 #define K_RCTL		0x61=0A=
-#define K_LEFT		105=0A=
-#define K_DOWN		108=0A=
-#define K_RGHT		106=0A=
-#define KP_0		82=0A=
-#define KP_DOT		83=0A=
+#define K_LEFT		0x69=0A=
+#define K_DOWN		0x6c=0A=
+#define K_RGHT		0x6a=0A=
+#define KP_0		0x52=0A=
+#define KP_DOT		0x53=0A=
 =0A=
 static unsigned char keycode_translate[256] =3D=0A=
 {=0A=
@@ -198,7 +198,7 @@=0A=
 =0A=
 /* ----- the following code stolen from pc_keyb.c */=0A=
 =0A=
-#ifdef CONFIG_MAGIC_SYSRQ=0A=
+=0A=
 unsigned char pckbd_sysrq_xlate[128] =3D=0A=
 	"\000\0331234567890-=3D\177\t"			/* 0x00 - 0x0f */=0A=
 	"qwertyuiop[]\r\000as"				/* 0x10 - 0x1f */=0A=
@@ -207,7 +207,6 @@=0A=
 	"\206\207\210\211\212\000\000789-456+1"		/* 0x40 - 0x4f */=0A=
 	"230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* =
0x50 - 0x5f */=0A=
 	"\r\000/";					/* 0x60 - 0x6f */=0A=
-#endif=0A=
 =0A=
 /*=0A=
  * Translation of escaped scancodes to keycodes.=0A=

------=_NextPart_000_00A5_01C04FF9.B01CC3A0
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	name="config"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
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#=0A=
# Automatically generated by make menuconfig: don't edit=0A=
#=0A=
CONFIG_PARISC=3Dy=0A=
# CONFIG_UID16 is not set=0A=
=0A=
#=0A=
# Code maturity level options=0A=
#=0A=
CONFIG_EXPERIMENTAL=3Dy=0A=
=0A=
#=0A=
# General options=0A=
#=0A=
# CONFIG_SMP is not set=0A=
# CONFIG_KWDB is not set=0A=
CONFIG_GSC=3Dy=0A=
CONFIG_IOMMU_CCIO=3Dy=0A=
CONFIG_GSC_LASI=3Dy=0A=
CONFIG_PCI=3Dy=0A=
CONFIG_GSC_DINO=3Dy=0A=
CONFIG_PCI_LBA=3Dy=0A=
CONFIG_IOSAPIC=3Dy=0A=
CONFIG_IOMMU_SBA=3Dy=0A=
=0A=
#=0A=
# Loadable module support=0A=
#=0A=
# CONFIG_MODULES is not set=0A=
=0A=
#=0A=
# General setup=0A=
#=0A=
CONFIG_NET=3Dy=0A=
# CONFIG_SYSVIPC is not set=0A=
# CONFIG_BSD_PROCESS_ACCT is not set=0A=
CONFIG_SYSCTL=3Dy=0A=
# CONFIG_BINFMT_SOM is not set=0A=
CONFIG_BINFMT_ELF=3Dy=0A=
# CONFIG_BINFMT_MISC is not set=0A=
# CONFIG_BINFMT_JAVA is not set=0A=
=0A=
#=0A=
# Parallel port support=0A=
#=0A=
CONFIG_PARPORT=3Dy=0A=
# CONFIG_PARPORT_PC is not set=0A=
# CONFIG_PARPORT_GSC is not set=0A=
# CONFIG_PARPORT_OTHER is not set=0A=
# CONFIG_PARPORT_1284 is not set=0A=
=0A=
#=0A=
# Block devices=0A=
#=0A=
# CONFIG_BLK_DEV_FD is not set=0A=
# CONFIG_BLK_DEV_XD is not set=0A=
# CONFIG_PARIDE is not set=0A=
# CONFIG_BLK_CPQ_DA is not set=0A=
# CONFIG_BLK_CPQ_CISS_DA is not set=0A=
# CONFIG_BLK_DEV_DAC960 is not set=0A=
# CONFIG_BLK_DEV_LOOP is not set=0A=
# CONFIG_BLK_DEV_NBD is not set=0A=
CONFIG_BLK_DEV_RAM=3Dy=0A=
CONFIG_BLK_DEV_RAM_SIZE=3D4096=0A=
CONFIG_BLK_DEV_INITRD=3Dy=0A=
=0A=
#=0A=
# Networking options=0A=
#=0A=
# CONFIG_PACKET is not set=0A=
# CONFIG_NETLINK is not set=0A=
# CONFIG_NETFILTER is not set=0A=
# CONFIG_FILTER is not set=0A=
# CONFIG_UNIX is not set=0A=
CONFIG_INET=3Dy=0A=
# CONFIG_IP_MULTICAST is not set=0A=
# CONFIG_IP_ADVANCED_ROUTER is not set=0A=
CONFIG_IP_PNP=3Dy=0A=
# CONFIG_IP_PNP_BOOTP is not set=0A=
# CONFIG_IP_PNP_RARP is not set=0A=
# CONFIG_NET_IPIP is not set=0A=
# CONFIG_NET_IPGRE is not set=0A=
# CONFIG_INET_ECN is not set=0A=
# CONFIG_SYN_COOKIES is not set=0A=
# CONFIG_IPV6 is not set=0A=
# CONFIG_KHTTPD is not set=0A=
# CONFIG_ATM is not set=0A=
# CONFIG_IPX is not set=0A=
# CONFIG_ATALK is not set=0A=
# CONFIG_DECNET is not set=0A=
# CONFIG_BRIDGE is not set=0A=
# CONFIG_X25 is not set=0A=
# CONFIG_LAPB is not set=0A=
# CONFIG_LLC is not set=0A=
# CONFIG_NET_DIVERT is not set=0A=
# CONFIG_ECONET is not set=0A=
# CONFIG_WAN_ROUTER is not set=0A=
# CONFIG_NET_FASTROUTE is not set=0A=
# CONFIG_NET_HW_FLOWCONTROL is not set=0A=
=0A=
#=0A=
# QoS and/or fair queueing=0A=
#=0A=
# CONFIG_NET_SCHED is not set=0A=
=0A=
#=0A=
# SCSI support=0A=
#=0A=
CONFIG_SCSI=3Dy=0A=
CONFIG_BLK_DEV_SD=3Dy=0A=
CONFIG_SD_EXTRA_DEVS=3D40=0A=
# CONFIG_CHR_DEV_ST is not set=0A=
# CONFIG_BLK_DEV_SR is not set=0A=
CONFIG_CHR_DEV_SG=3Dy=0A=
# CONFIG_SCSI_MULTI_LUN is not set=0A=
# CONFIG_SCSI_CONSTANTS is not set=0A=
=0A=
#=0A=
# SCSI low-level drivers=0A=
#=0A=
CONFIG_SCSI_LASI=3Dy=0A=
CONFIG_SCSI_ZALON=3Dy=0A=
CONFIG_SCSI_SYM53C8XX=3Dy=0A=
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=3D8=0A=
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=3D32=0A=
CONFIG_SCSI_NCR53C8XX_SYNC=3D20=0A=
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set=0A=
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set=0A=
=0A=
#=0A=
# Network device support=0A=
#=0A=
CONFIG_NETDEVICES=3Dy=0A=
CONFIG_LASI_82596=3Dy=0A=
=0A=
#=0A=
# ARCnet devices=0A=
#=0A=
# CONFIG_ARCNET is not set=0A=
# CONFIG_DUMMY is not set=0A=
# CONFIG_BONDING is not set=0A=
# CONFIG_EQUALIZER is not set=0A=
# CONFIG_TUN is not set=0A=
# CONFIG_NET_SB1000 is not set=0A=
=0A=
#=0A=
# Ethernet (10 or 100Mbit)=0A=
#=0A=
CONFIG_NET_ETHERNET=3Dy=0A=
# CONFIG_NET_VENDOR_3COM is not set=0A=
# CONFIG_LANCE is not set=0A=
# CONFIG_NET_VENDOR_SMC is not set=0A=
# CONFIG_NET_VENDOR_RACAL is not set=0A=
# CONFIG_AT1700 is not set=0A=
# CONFIG_DEPCA is not set=0A=
# CONFIG_HP100 is not set=0A=
# CONFIG_NET_ISA is not set=0A=
CONFIG_NET_PCI=3Dy=0A=
# CONFIG_PCNET32 is not set=0A=
# CONFIG_ADAPTEC_STARFIRE is not set=0A=
# CONFIG_AC3200 is not set=0A=
# CONFIG_APRICOT is not set=0A=
# CONFIG_CS89x0 is not set=0A=
# CONFIG_DE4X5 is not set=0A=
CONFIG_TULIP=3Dy=0A=
# CONFIG_DGRS is not set=0A=
# CONFIG_DM9102 is not set=0A=
# CONFIG_EEPRO100 is not set=0A=
# CONFIG_LNE390 is not set=0A=
# CONFIG_NATSEMI is not set=0A=
# CONFIG_NE2K_PCI is not set=0A=
# CONFIG_NE3210 is not set=0A=
# CONFIG_ES3210 is not set=0A=
# CONFIG_RTL8129 is not set=0A=
# CONFIG_8139TOO is not set=0A=
# CONFIG_SIS900 is not set=0A=
# CONFIG_EPIC100 is not set=0A=
# CONFIG_SUNDANCE is not set=0A=
# CONFIG_TLAN is not set=0A=
# CONFIG_VIA_RHINE is not set=0A=
# CONFIG_WINBOND_840 is not set=0A=
# CONFIG_NET_POCKET is not set=0A=
=0A=
#=0A=
# Ethernet (1000 Mbit)=0A=
#=0A=
# CONFIG_ACENIC is not set=0A=
# CONFIG_HAMACHI is not set=0A=
# CONFIG_YELLOWFIN is not set=0A=
# CONFIG_SK98LIN is not set=0A=
# CONFIG_FDDI is not set=0A=
# CONFIG_HIPPI is not set=0A=
# CONFIG_PLIP is not set=0A=
# CONFIG_PPP is not set=0A=
# CONFIG_SLIP is not set=0A=
=0A=
#=0A=
# Wireless LAN (non-hamradio)=0A=
#=0A=
# CONFIG_NET_RADIO is not set=0A=
=0A=
#=0A=
# Token Ring devices=0A=
#=0A=
# CONFIG_TR is not set=0A=
# CONFIG_NET_FC is not set=0A=
# CONFIG_RCPCI is not set=0A=
# CONFIG_SHAPER is not set=0A=
=0A=
#=0A=
# Wan interfaces=0A=
#=0A=
# CONFIG_WAN is not set=0A=
=0A=
#=0A=
# Character devices=0A=
#=0A=
CONFIG_VT=3Dy=0A=
CONFIG_VT_CONSOLE=3Dy=0A=
CONFIG_GSC_PS2=3Dy=0A=
# CONFIG_HIL is not set=0A=
CONFIG_SERIAL=3Dy=0A=
# CONFIG_SERIAL_CONSOLE is not set=0A=
CONFIG_SERIAL_GSC=3Dy=0A=
# CONFIG_SERIAL_EXTENDED is not set=0A=
# CONFIG_SERIAL_NONSTANDARD is not set=0A=
CONFIG_UNIX98_PTYS=3Dy=0A=
CONFIG_UNIX98_PTY_COUNT=3D256=0A=
# CONFIG_PRINTER is not set=0A=
# CONFIG_PPDEV is not set=0A=
=0A=
#=0A=
# I2C support=0A=
#=0A=
# CONFIG_I2C is not set=0A=
=0A=
#=0A=
# Mice=0A=
#=0A=
# CONFIG_BUSMOUSE is not set=0A=
# CONFIG_MOUSE is not set=0A=
=0A=
#=0A=
# Joysticks=0A=
#=0A=
# CONFIG_JOYSTICK is not set=0A=
# CONFIG_QIC02_TAPE is not set=0A=
=0A=
#=0A=
# Watchdog Cards=0A=
#=0A=
# CONFIG_WATCHDOG is not set=0A=
CONFIG_GENRTC=3Dy=0A=
# CONFIG_INTEL_RNG is not set=0A=
# CONFIG_NVRAM is not set=0A=
# CONFIG_RTC is not set=0A=
# CONFIG_DTLK is not set=0A=
# CONFIG_R3964 is not set=0A=
# CONFIG_APPLICOM is not set=0A=
=0A=
#=0A=
# Ftape, the floppy tape device driver=0A=
#=0A=
# CONFIG_FTAPE is not set=0A=
# CONFIG_AGP is not set=0A=
# CONFIG_DRM is not set=0A=
=0A=
#=0A=
# File systems=0A=
#=0A=
# CONFIG_QUOTA is not set=0A=
# CONFIG_AUTOFS_FS is not set=0A=
# CONFIG_AUTOFS4_FS is not set=0A=
# CONFIG_ADFS_FS is not set=0A=
# CONFIG_ADFS_FS_RW is not set=0A=
# CONFIG_AFFS_FS is not set=0A=
# CONFIG_HFS_FS is not set=0A=
# CONFIG_BFS_FS is not set=0A=
# CONFIG_FAT_FS is not set=0A=
# CONFIG_MSDOS_FS is not set=0A=
# CONFIG_UMSDOS_FS is not set=0A=
# CONFIG_VFAT_FS is not set=0A=
# CONFIG_EFS_FS is not set=0A=
# CONFIG_JFFS_FS is not set=0A=
# CONFIG_CRAMFS is not set=0A=
# CONFIG_RAMFS is not set=0A=
CONFIG_ISO9660_FS=3Dy=0A=
# CONFIG_JOLIET is not set=0A=
# CONFIG_MINIX_FS is not set=0A=
# CONFIG_NTFS_FS is not set=0A=
# CONFIG_NTFS_RW is not set=0A=
# CONFIG_HPFS_FS is not set=0A=
CONFIG_PROC_FS=3Dy=0A=
# CONFIG_DEVFS_FS is not set=0A=
# CONFIG_DEVFS_MOUNT is not set=0A=
# CONFIG_DEVFS_DEBUG is not set=0A=
# CONFIG_DEVPTS_FS is not set=0A=
# CONFIG_QNX4FS_FS is not set=0A=
# CONFIG_QNX4FS_RW is not set=0A=
# CONFIG_ROMFS_FS is not set=0A=
CONFIG_EXT2_FS=3Dy=0A=
# CONFIG_SYSV_FS is not set=0A=
# CONFIG_SYSV_FS_WRITE is not set=0A=
# CONFIG_UDF_FS is not set=0A=
# CONFIG_UDF_RW is not set=0A=
# CONFIG_UFS_FS is not set=0A=
# CONFIG_UFS_FS_WRITE is not set=0A=
=0A=
#=0A=
# Network File Systems=0A=
#=0A=
# CONFIG_CODA_FS is not set=0A=
CONFIG_NFS_FS=3Dy=0A=
# CONFIG_NFS_V3 is not set=0A=
CONFIG_ROOT_NFS=3Dy=0A=
# CONFIG_NFSD is not set=0A=
# CONFIG_NFSD_V3 is not set=0A=
CONFIG_SUNRPC=3Dy=0A=
CONFIG_LOCKD=3Dy=0A=
# CONFIG_SMB_FS is not set=0A=
# CONFIG_NCP_FS is not set=0A=
# CONFIG_NCPFS_PACKET_SIGNING is not set=0A=
# CONFIG_NCPFS_IOCTL_LOCKING is not set=0A=
# CONFIG_NCPFS_STRONG is not set=0A=
# CONFIG_NCPFS_NFS_NS is not set=0A=
# CONFIG_NCPFS_OS2_NS is not set=0A=
# CONFIG_NCPFS_SMALLDOS is not set=0A=
# CONFIG_NCPFS_MOUNT_SUBDIR is not set=0A=
# CONFIG_NCPFS_NDS_DOMAINS is not set=0A=
# CONFIG_NCPFS_NLS is not set=0A=
# CONFIG_NCPFS_EXTRAS is not set=0A=
=0A=
#=0A=
# Partition Types=0A=
#=0A=
# CONFIG_PARTITION_ADVANCED is not set=0A=
CONFIG_MSDOS_PARTITION=3Dy=0A=
# CONFIG_NLS is not set=0A=
=0A=
#=0A=
# Sound Drivers=0A=
#=0A=
# CONFIG_SOUND is not set=0A=
=0A=
#=0A=
# Console drivers=0A=
#=0A=
=0A=
#=0A=
# Frame-buffer support=0A=
#=0A=
# CONFIG_FB is not set=0A=
CONFIG_STI_CONSOLE=3Dy=0A=
CONFIG_DUMMY_CONSOLE=3Dy=0A=
=0A=
#=0A=
# Kernel hacking=0A=
#=0A=
CONFIG_MAGIC_SYSRQ=3Dy=0A=

------=_NextPart_000_00A5_01C04FF9.B01CC3A0--


From - Thu Nov 08 21:14:10 2018
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From: Alex deVries <adevries@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Little bits of news.
Date: Wed, 21 Apr 1999 20:24:18 -0400 (EDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:8485


First, for all you folk expecting hardware who don't live in the US, I'd
expect your boxes around the first of May. I think everyone else in the US
who was supposed to get hardware has.

For all you searching for PA RISC 2.0 books, HP is being so kind as to get
Prentice Hall to reprint a few just for us. 

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] The config for 712 hp boxes
Date: Thu, 16 Nov 2000 10:10:23 -0800
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To: "Thomas Marteau" <marteaut@esiee.fr>
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Xref: news.gmane.org gmane.linux.ports.parisc:8486

"Thomas Marteau" wrote:
> Hi all,
> 
>     Here is the config file we use to compile a new kernel from the test10
> sources. We have the console with the STI and an extra term on the serial
> port.

Thomas - excellent - thanks!

> Also, in this mail, you have the diff between our hp_keyb.c and the official
> one but it gives you the ~ and the ' and others scancodes.

I noticed this mail was directed to me - but I can't take ownership
of this code. I have too many other things going on.

Helge - can you commit this fix too?

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:14:11 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] The config for 712 hp boxes
Date: Thu, 16 Nov 2000 19:25:49 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:8487

On Thursday 16 November 2000 19:10, Grant Grundler wrote:
> "Thomas Marteau" wrote:
> > Hi all,
> > 
> >     Here is the config file we use to compile a new kernel from the test10
> > sources. We have the console with the STI and an extra term on the serial
> > port.
> 
> Thomas - excellent - thanks!
> 
> > Also, in this mail, you have the diff between our hp_keyb.c and the 
official
> > one but it gives you the ~ and the ' and others scancodes.
> 
> I noticed this mail was directed to me - but I can't take ownership
> of this code. I have too many other things going on.
> 
> Helge - can you commit this fix too?

Ok. I will test & evtl. commit it today.

> 
> thanks,
> grant
> 
> Grant Grundler
> Unix Systems Enablement Lab
> +1.408.447.7253
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


From - Thu Nov 08 21:14:11 2018
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From: Frank Rowand <frank_rowand@mvista.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Single-stepping
Date: Thu, 16 Nov 2000 11:00:48 -0800
Organization: Montavista Software, Inc
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To: John Marvin <jsm@udlkern.fc.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:8488

John Marvin wrote:
> 
> Richard,
> 
> >
> > Sorry, I worded that very badly.  The code that moves the childs
> > IAOQ on is in the kernel, invoked as a result of the controlling
> > process calling ptrace(PTRACE_SINGLESTEP...) when the childs N
> > bit is set.
> >
> 
> Great.
> 
> > > Does this code properly handle branches in the delay slot of another
> > > branch? (you need to make sure you are not advancing the queues by just
> > > adding 4 to each element).  One concern I have about this method is that
> >
> > Current code does
> >
> >     /* Nullified, just crank over the queue. */
> >     task_regs(child)->iaoq[0] = task_regs(child)->iaoq[1];
> >     task_regs(child)->iasq[0] = task_regs(child)->iasq[1];
> >     task_regs(child)->iaoq[1] = task_regs(child)->iaoq[0] + 4;
> >
> > Does that look right to you?
> >
> 
> Yes, that is the correct way to do it (I'll assume the duplicated line
> is just a cut/paste error).

If iaoq[0] contains a branch, iaoq[1] is in the delay slot.  The instruction
executed after iaoq[1] would then typically _not_ be iaoq[0] + 4 (the next
instruction would be the target of the branch at iaoq[0]).


> Sounds ok with me. And as long as there are no corner cases, it probably
> is the best solution, assuming we don't find another application for
> the recovery counter.

The recovery counter is very useful for performance measurement tools to
understand the cycles per instruction of a code path.  (Using the recovery
counter for the debugger doesn't preclude using it for performance tools -
you just can't easily use it for both purposes at the same instant in time.)


> John

-Frank
-- 
Frank Rowand <frank_rowand@mvista.com>
MontaVista Software, Inc


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Single-stepping
Date: Thu, 16 Nov 2000 20:28:42 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:8489

On Thu, Nov 16, 2000 at 11:00:48AM -0800, Frank Rowand wrote:
> John Marvin wrote:
> > > > Does this code properly handle branches in the delay slot of another
> > > > branch? (you need to make sure you are not advancing the queues by just
> > > > adding 4 to each element).  One concern I have about this method is that
> > >
> > > Current code does
> > >
> > >     /* Nullified, just crank over the queue. */
> > >     task_regs(child)->iaoq[0] = task_regs(child)->iaoq[1];
> > >     task_regs(child)->iasq[0] = task_regs(child)->iasq[1];
> > >     task_regs(child)->iaoq[1] = task_regs(child)->iaoq[0] + 4;
> > >
> > > Does that look right to you?
> > >
> > 
> > Yes, that is the correct way to do it (I'll assume the duplicated line
> > is just a cut/paste error).
> 
> If iaoq[0] contains a branch, iaoq[1] is in the delay slot.  The instruction
> executed after iaoq[1] would then typically _not_ be iaoq[0] + 4 (the next
> instruction would be the target of the branch at iaoq[0]).

But the above code is only executed if the current instruction is
nullified.  In your example, the branch in iaoq[0] would be
nullified and therefore never taken.

Richard


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] The config for 712 hp boxes
Date: Thu, 16 Nov 2000 22:28:50 +0100
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To: "Thomas Marteau" <marteaut@esiee.fr>
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On Thursday 16 November 2000 18:18, Thomas Marteau wrote:
> Hi all,
> 
> [....]
> Also, in this mail, you have the diff between our hp_keyb.c and the official
> one but it gives you the ~ and the ' and others scancodes.
> [....]

Hi ESIEE-Team !

Thanks for your patch !

I committed your patch into CVS and just tweaked it a little for  
CONFIG_MAGIC_SYSRQ. I hope this is ok for you ?
If your time permits, I would like to ask, if you maybe also want to look at 
getting the CAPS-Lock-, Scroll-Lock- & Num-Lock-LED's working ? 

Furthermore you mention in your project-history on your homepage something 
about "keyboard and soundchip problems" (Oct. 24). I'm asking just out of 
curiousity: Did you thought about programming the on-board sound-chips (which 
I believe would be a hard job.)  ?
 
> Bye,
> ESIEE Team

Best regards,

	Helge Deller.


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] glibc merged to 2.2
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Today Paul Bame and I merged/updated the puffin.external.hp.com glibc cvs to 
glibc 2.2. After the merge I cleaned up the differences between our cvs and 
2.2, mostly comment differences and formatting changes. With the exception of 
the setjmp problem mentioned in,

http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/11-Nov/0091.html

and the fact that we have/need newer "scripts/config.guess" and 
"scripts/config.sub", we are completely sync'ed up with glibc 2.2.

-- 
Matt Taggart
taggart@fc.hp.com



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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] The config for 712 hp boxes
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[CC'ed the list, so maybe someone else can comment too....]

On Friday 17 November 2000 11:45, Thomas Marteau wrote:
> Hi Helge,

Hi,

> 
> 
> ----- Original Message -----
> From: Helge Deller <deller@gmx.de>
> To: Thomas Marteau <marteaut@esiee.fr>
> Cc: <parisc-linux@puffin.external.hp.com>
> Sent: Thursday, November 16, 2000 10:28 PM
> Subject: Re: [parisc-linux] The config for 712 hp boxes
> 
> 
> > On Thursday 16 November 2000 18:18, Thomas Marteau wrote:
> > > Hi all,
> > >
> > > [....]
> > > Also, in this mail, you have the diff between our hp_keyb.c and the
> official
> > > one but it gives you the ~ and the ' and others scancodes.
> > > [....]
> >
> > Hi ESIEE-Team !
> >
> > Thanks for your patch !
> >
> > I committed your patch into CVS and just tweaked it a little for
> > CONFIG_MAGIC_SYSRQ. I hope this is ok for you ?
> We didn't really understand why pckbd_sysrq_xlate was here for.
> If you can explain to us, it will be fine.

The best documentation you can find is in linux/Documentation/sysrq.txt.
The copy of pckbd_sysrq_xlate[] is a simple implementation of 
keyboard-scancodes to chars, which is used by drivers/char/keyboard.c to call 
handle_sysrq() from /drivers/char/sysrq.c.
This means, that you can press Alt-PrintScr (=> SysRQ) and a char at the 
keyboard simultaniously and your machine for example syncs the disks, mounts 
all discs read-only or reboots your machine immediately.
 

> > If your time permits, I would like to ask, if you maybe also want to look
> at
> > getting the CAPS-Lock-, Scroll-Lock- & Num-Lock-LED's working ?

> Normally, you can see yours leds switching on/off but we did not init them.
> So they are like boot admin switch them...
                               ^^^^^^^ ^^^^^ ^^^
Sorry ?

> But we would like to know how and where we have to init them
> because we know how to. We have made test and it was working...

I'm not sure, but I think you should check the code in lasikbd_leds() in 
hp_psaux.c.
The initialization should maybe be done in the same file in the function 
lasi_ps2_register() before calling register_kbd_ops().

> 
> > Furthermore you mention in your project-history on your homepage something
> > about "keyboard and soundchip problems" (Oct. 24). I'm asking just out of
> > curiousity: Did you thought about programming the on-board sound-chips
> (which
> > I believe would be a hard job.)  ?
> Yes, it is in our internal todo list, if we have time to. Because we look at
> it with Thierry, we saw that, for LASI,
> you have an interface and then the chip to configure. But it is very
> interesting...

Yes it is, and it would be great if you worked on that too ! 

> 
> Also, we want to rule the power leds but they are different if  the box is
> 712 or B132 or ... So our question is how to implement
> this kind of initialsation and deinitialisation in a linux kernel and in a
> second time, how to do for differents kind of boxes.

As far as I know / have heard, there are only two types of LED's (but I may 
be wrong here !). One is where the LED's are organized in a row on the front 
panel (as my local machines here), and the other one, where you have 
(LED/)LCD-Numbers on your front panel ?

They differ how to be accessed and where the controlling registers are 
located. One method to distiguish them is maybe to place the special 
initialisation code into drivers/gsc/lasi.c and asp.c, depending on the 
machine and which method needs to be used.
Since I don't have any real documentation or knowledge of the programming of 
the LEDs (beside of the PDC-calls I placed into setup.c), maybe someone else 
can better comment on that or give some documentation ?

> 
> Thanks for your answers, Helge
> Bye,
> ESIEE Team

Best regards,

	Helge Deller.


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From: Arnaud.ATOCH@oecd.org
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Booting 712 with CD 0.5
Date: Fri, 17 Nov 2000 16:30:42 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:8493

Is the following output the normal behavior of Linux-PARisc on a 712/100 ?

kmem_create: Forcing size word alignment - nfs_fh
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
VFS: Disk change detected on device sr(11,0)
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
ISO 9660 Extensions: RRIP_1991A
VFS: Mounted root (iso9660 filesystem) readonly.
INIT: version 2.78 booting
INIT: Entering runlevel: 2
Setting up /tmp ramdisk4096+0 records in
4096+0 records out
mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
1024 inodes, 4096 blocks
0 blocks (0.00%) reserved for the super user
First data block=1
1 block group
8192 blocks per group, 8192 fragments per group
1024 inodes per group

Writing inode tables: done
Writing superblocks and filesystem accounting information: done

INIT: Id "T0" respawni
INIT: no more processe


From - Thu Nov 08 21:14:11 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] SEGV signal handling bug (dynamic linking)
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Hi,
  Don't know if anyone expects this to work yet or not, but:

------------------------- cut -----------------------------
#include <sys/ptrace.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <signal.h>
#include <sys/mman.h>

char *mem;

void sig_handler(int sig)
{
        int res;

        printf("Trapped!!!\n");
        res = mprotect(mem, 4096, PROT_READ|PROT_WRITE);
        if (res < 0) {
                perror("mprotect");
                exit(1);
        }
}


void install_handlers(void)
{
        struct sigaction act;

        memset(&act, 0, sizeof(act));
        act.sa_handler = sig_handler;
        sigaction(SIGSEGV, &act, NULL);
}

int main(int argc, char **argv)
{
        int res;

        mem = malloc(8192);
        if (mem == NULL) {
                perror("malloc");
                exit(1);
        }
        mem = (char *)(((int)mem + 4095) & ~0x0fff);
        res = mprotect(mem, 4096, PROT_READ);
        if (res < 0) {
                perror("mprotect");
                exit(1);
        }
        install_handlers();
        write(1, "Going\n", 6);
        mem[24] = 17;
        write(1, "Gone\n", 5);
        return 0;
}
------------------------- cut -----------------------------

generates:

Going
Bus error

plus the following on the console:

do_page_fault() pid=167 command='ch'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011
r0-3     00000000 fffff000 0000166f 00002944
r4-7     40138c38 2001fd8c 00002852 00000001
r8-11    00002862 0008b010 0009c290 0009cbf0
r12-15   00000000 00000000 0009cb50 00000000
r16-19   00000000 00000001 0000b71b 00000011
r20-23   00004000 40041fcc 40041fcc 00000008
r24-27   00000006 00001000 00000001 0000280c
r28-31   00000006 00000020 20020140 40041fd7
sr0-4    00000000 00000003 00000000 0000000a
sr4-8    0000000a 0000000a 0000000a 0000000a

IASQ: 0000000a 0000000a IAOQ: 0000167b 0000167f
 IIR: 6293002e    ISR: 0000000a  IOR: 00004017
ORIG_R28: 00002880
!!die_if_kernel: ch(167): Unaligned data reference 28

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011001111111100001011
r0-3     00000000 fffff000 20020140 00002944
r4-7     40138c38 2001fd8c 00002852 00000001
r8-11    00002862 0008b010 0009c290 0009cbf0
r12-15   00000000 00000000 0009cb50 00000000
r16-19   00000000 00000001 0000b71b 00000000
r20-23   0000289f 40041fcc 40041fcc 00000008
r24-27   200201d0 20020150 0000000b 0000280c
r28-31   00000006 00000020 200203c0 40041fd7
sr0-4    00000000 00000003 00000000 0000000a
sr4-8    0000000a 0000000a 0000000a 0000000a

IASQ: 0000000a 0000000a IAOQ: 0000289b 0000289b
 IIR: 0e801096    ISR: 0000000a  IOR: 0000289f
ORIG_R28: 00002880


The first do_page_fault() is fine, it is the 'mem[24] = 17' line,
but the second isn't.  The corresponding code is at the end of
.plt:

    2898:       0e 80 10 96     ldw  0(sr0,r20),r22
    289c:       ea c0 c0 00     bv r0(r22)
    28a0:       0e 88 10 95     ldw  4(sr0,r20),r21
    28a4:       ea 9f 1f dd     b,l 2898 <__DTOR_END__+0x74>,r20
    28a8:       d6 80 1c 1e     depwi 0,31,2,r20
    28ac:       00 c0 ff ee     #  c0ffee
    28b0:       de ad be ef     #deadbeef


However, if I make it statically linked, it works fine, giving:

Going
Trapped!!!
Gone

Richard


From - Thu Nov 08 21:14:11 2018
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From: "Brian S. Julin" <bri@mojo.calyx.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] debian archive beware libpam
Date: Fri, 17 Nov 2000 10:49:22 -0500 (EST)
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JFYI to save other people some time.  Before firing up 
"apt-get upgrade" you'll be best off putting a hold on all the 
libpam packages, as the 0.72-12 version on ftp.us.debian.org 
fails on a bad symbol in libpam-misc, which locks you out 
of the box except if you boot single.

--
Brian S. Julin



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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting 712 with CD 0.5
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Xref: news.gmane.org gmane.linux.ports.parisc:8497

Arnaud.ATOCH@oecd.org wrote:
> Is the following output the normal behavior of Linux-PARisc on a 712/100 ?
> 
> kmem_create: Forcing size word alignment - nfs_fh
> kernel BUG at pci-dma.c:391!
> kernel BUG at pci-dma.c:400!

The bug is real. A driver is calling pci_map_single() and pci_unmap_single()
without specifying which direction the DMA is going. Cache flushing on 712
(PCXL) systems needs to know. I'll assume it's the SCSI driver since
it looks like we are talking to a SCSI CD-ROM.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Ulrich Drepper <drepper@redhat.com>
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Subject: Re: [parisc-linux] SEGV signal handling bug (dynamic linking)
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Richard Hirst <rhirst@linuxcare.com> writes:

>         mem = malloc(8192);
>         if (mem == NULL) {
>                 perror("malloc");
>                 exit(1);
>         }
>         mem = (char *)(((int)mem + 4095) & ~0x0fff);
>         res = mprotect(mem, 4096, PROT_READ);

Read the Unix standard:

  The behavior of this function is unspecified if the mapping was not
  established by a call to mmap().

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] pci-dma.c BUG(391/400) PATCH
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Hi all,

The following patch tries to point a finger at the offender
rather than just call attention to a problem in the service.

I don't have a PCXL/L2 machine setup right now.
Could someone test commit this patch for me?

thanks,
grant

grundler <505>cvs diff arch/parisc/kernel/pci-dma.c 
Index: arch/parisc/kernel/pci-dma.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/pci-dma.c,v
retrieving revision 1.16
diff -u -p -r1.16 pci-dma.c
--- pci-dma.c   2000/11/08 06:20:27     1.16
+++ pci-dma.c   2000/11/17 17:04:22
@@ -387,8 +387,10 @@ static void pa11_dma_free_consistent (st
 
 static dma_addr_t pa11_dma_map_single(struct pci_dev *dev, void *addr, size_t size, int direction)
 {
-       if (direction == PCI_DMA_NONE)
-           BUG();
+       if (direction == PCI_DMA_NONE) {
+               printk(KERN_ERR "pa11_dma_map_single(PCI_DMA_NONE) called by %p\n", __builtin_return_address(0));
+               BUG();
+       }
 
        flush_kernel_dcache_range((unsigned long) addr, size);
        return virt_to_phys(addr);
@@ -396,8 +398,10 @@ static dma_addr_t pa11_dma_map_single(st
 
 static void pa11_dma_unmap_single(struct pci_dev *dev, dma_addr_t dma_handle, size_t size, int direction)
 {
-       if (direction == PCI_DMA_NONE)
-           BUG();
+       if (direction == PCI_DMA_NONE) {
+               printk(KERN_ERR "pa11_dma_unmap_single(PCI_DMA_NONE) called by %p\n", __builtin_return_address(0));
+               BUG();
+       }
 
        if (direction == PCI_DMA_TODEVICE)
            return;


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From: Arnaud.ATOCH@oecd.org
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Subject: RE: [parisc-linux] Booting 712 with CD 0.5
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Thanks for the enlightment.

Should I try a new CD-ROM or should I wait untill next ISO image is created
?
IS the shutdown also due to this bug ?

Setting up /tmp ramdisk4096+0 records in
4096+0 records out
mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
1024 inodes, 4096 blocks
0 blocks (0.00%) reserved for the super user
First data block=1
1 block group
8192 blocks per group, 8192 fragments per group
1024 inodes per group

Writing inode tables: done
Writing superblocks and filesystem accounting information: done

INIT: Id "T0" respawni
INIT: no more processe

-----Original Message-----
From: Grant Grundler [mailto:grundler@cup.hp.com]
Sent: Friday, November 17, 2000 17:38
To: Arnaud.ATOCH@oecd.org
Cc: parisc-linux@puffin.external.hp.com
Subject: Re: [parisc-linux] Booting 712 with CD 0.5 


Arnaud.ATOCH@oecd.org wrote:
> Is the following output the normal behavior of Linux-PARisc on a 712/100 ?
> 
> kmem_create: Forcing size word alignment - nfs_fh
> kernel BUG at pci-dma.c:391!
> kernel BUG at pci-dma.c:400!

The bug is real. A driver is calling pci_map_single() and pci_unmap_single()
without specifying which direction the DMA is going. Cache flushing on 712
(PCXL) systems needs to know. I'll assume it's the SCSI driver since
it looks like we are talking to a SCSI CD-ROM.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SEGV signal handling bug (dynamic linking)
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Xref: news.gmane.org gmane.linux.ports.parisc:8501

On Fri, Nov 17, 2000 at 09:09:10AM -0800, Ulrich Drepper wrote:
> Richard Hirst <rhirst@linuxcare.com> writes:
> 
> >         mem = malloc(8192);
> >         if (mem == NULL) {
> >                 perror("malloc");
> >                 exit(1);
> >         }
> >         mem = (char *)(((int)mem + 4095) & ~0x0fff);
> >         res = mprotect(mem, 4096, PROT_READ);
> 
> Read the Unix standard:
> 
>   The behavior of this function is unspecified if the mapping was not
>   established by a call to mmap().

Yeh, but it works on m68k and i386, and works on hppa if statically
linked.  And the code is in an example on the mprotect man page on
my Mandrake7 box.

Richard


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From: Ulrich Drepper <drepper@redhat.com>
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Subject: Re: [parisc-linux] SEGV signal handling bug (dynamic linking)
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Richard Hirst <rhirst@linuxcare.com> writes:

> Yeh, but it works on m68k and i386, and works on hppa if statically
> linked.  And the code is in an example on the mprotect man page on
> my Mandrake7 box.

Then shoot the guy who wrote the man page.  It's wrong and will never
reliably work.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] SEGV signal handling bug (dynamic linking)
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Xref: news.gmane.org gmane.linux.ports.parisc:8503

On Fri, Nov 17, 2000 at 09:09:10AM -0800, Ulrich Drepper wrote:
> Richard Hirst <rhirst@linuxcare.com> writes:
> 
> >         mem = malloc(8192);
> >         if (mem == NULL) {
> >                 perror("malloc");
> >                 exit(1);
> >         }
> >         mem = (char *)(((int)mem + 4095) & ~0x0fff);
> >         res = mprotect(mem, 4096, PROT_READ);
> 
> Read the Unix standard:
> 
>   The behavior of this function is unspecified if the mapping was not
>   established by a call to mmap().

Changed my prog to use mmap and get the same problem.

Richard


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PDC firmware revision FAQ update
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Hi folks,

The issue of PDC/firmware revs came up locally and sounded like a FAQ.
I added

    "10. How can I check if the PDC (firmware) revision is the latest?"

and what I knew/could find to our FAQ at:

	http://www.parisc-linux.org/faq.html

The new FAQ entry should be visible to the world in the next hour or so.


    **** WARNING ****
    Firmware upgrades can *kill* your machine!
    **** WARNING ****

Don't do it just because. Read the FAQ carefully. Take the
time to figure out why you might need the upgrade and expose
yourself to this risk.

grant

ps. please don't ask me why your favorite machine's PDC isn't listed.
   I don't run the referenced sites.


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I have posted new i386/linux -> hppa/linux cross tools at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20001117.tar.gz

it includes 32bit and 64bit cross-compilers and a static 32bit glibc 2.2. I 
have also updated the include tarball,

ftp://puffin.external.hp.com/pub/parisc/src/include-20001117.tar.gz

it includes glibc 2.2 headers and the latest kernel headers.

-- 
Matt Taggart
taggart@fc.hp.com



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Subject: [parisc-linux] Host for 712/60 compiles
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A couple of us have 16 diskless 712/60s which we want to use for distributed
processing on easily parallelized tasks like factoring and perhaps crypto
cracking. A few questions arise.

Is PARISC Linux far enough along to be useful for that? We need no monitor or
console (except perhaps for initial debugging), no devices except ethernet,
and expect to run only one process per machine, but we need stability.

We'll need a host for cross-compiling. We have a 256 meg 715/100 with HP/UX
which we expect to use as the host for booting, handing out chunks of work,
storing results, etc. Should we compile there under HP/UX or would we get
better tools on one of our Intel Linux boxes?

Or is PARISC Linux far enough along we should put it on the 715 and get
native compilation?


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*sigh* finally.  After hacking binutils' configure files, 
./configure --target=parisc-linux --with-gas
actually works.

So, what are the larger problems with binutils?  I know there was talk of
completely redoing the parisc stuff.  

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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On Wed, Nov 15, 2000 at 05:16:02PM -0700, Matt Taggart wrote:
> Modified files:
> 	.              : config.guess config.sub 
> 
> Log message:
> New upstream versions from
> http://subversions.gnu.org/cgi-bin/cvsweb/config/
> Now config.guess returns the right thing for hppa-linux

so... we needed new versions anyway, even though we're not parisc-linux..?
:-)  [not bitter, just amused]

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] CVS linux Vs. -test10
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On Tue, Nov 14, 2000 at 09:35:01AM -0700, Paul Bame wrote:
> 
> I've attached an overview of differences between our CVS linux sources

ok, here's my memories.

>      * Lots of RCS $Revision$ differences in ACPI (a different 'cvs
>        import' would've eliminated these differences).

i assume someone's already done the appropriate cvs admin -ko magic
to fix this?

>      * drivers/char/Config.in: changes to support LASI, parisc real-time
>        clock (CONFIG_GENRTC)

istr this was `stolen' from the m68k port by sammy.

>      * drivers/char/serial.c: support for GSC and A500 serial

if they're working, send to Ted and he'll do an update with Linus at
some point.  <tytso@valinux.com>

>      * drivers/net/eepro100.c: no clue about this one

we were trying to get it to work for the Jan NYLWE show.  i doubt we have
any changes of note.  does anyone have an eepro in an hp?

>      * drivers/video: STI and HP FB video drivers (iodccon is probably
>        worthless)

agreed on iodccon.  unless we're using it up until the point that one of
the more advanced consoles takes over?  i don't think we are now.

>      * fs/binfmt_elf.c,exec.c: changes for stack-grows-up?

Yes, that's what they're for.

>      * fs/nfs/read.c: probably unnecessary hack for broken parisc64 gcc

we certainly don't want to send it upstream, but we don't want to take it
out until the bug is fixed.  is fixing that bug on the webshite todo list?

>      * include/linux/binfmts.h,fs.h,kernel.h,tty.h,udf_fs_sb.h:
>        unnecessary differences?

mostly, yes.

>      * include/linux/init.h: we use different section names -- why????,
>        probably some unnecessary other differences too

because we use -ffunction-sections.  text.init clashes with a function called
init, and the linker just merges it into the text segment.  we need it to
be separate, so it became init.text.  there's patches around to do this for
other architectures too.  just bad naming choices initially.

>      * include/linux/wait.h: parisc debugging -- should be removed

yeah, that can die now.

>      * scripts/*: MANY differences here. Looks like a combination of
>        things we hacked to fix configuration problems plus MAYBE not
>        updating these files from new Linux versions in the past. 'make
>        menuconfig' is significantly different from upstream. Even the
>        mkdep.c program is different.

ok.  mea extremely culpa here.  i had an exclude file which included the
scripts/ directory.  someone should now ditch our stuff, take what's in
-test10, hack it till it works for us and check it in.

-- 
Revolutions do not require corporate support.


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From: "Bjoern A. Zeeb" <bzeeb+hplinux@zabbadoz.net>
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Subject: [parisc-linux] serial console ?
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Hi,

I just started booting into a 715-100 using palinux-0.5.iso.

I did read multiple times that I need serial console. So I plugged in
serial cable I an normally using for x86 to x86 serial console on my
linux router but I did not get anything on both serial ports :-(

What information would one need to help ?

personal contact is prefered. I would then sum up all information I
got and post it to the list afterwards (if desired).

Have to say: I am 'new' to those workstation and had to hoover it
first after I got it ;)

I also could have a 735-99 with some kind of graphic accelerator if
that one would be better.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/




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On Sun, 19 Nov 2000, Bjoern A. Zeeb wrote:

> I just started booting into a 715-100 using palinux-0.5.iso.
>
> I did read multiple times that I need serial console. So I plugged in
> serial cable I an normally using for x86 to x86 serial console on my
> linux router but I did not get anything on both serial ports :-(

Hi,

sorted out everything. serial cable was quite ok, but using cu I was
never able to reach IPL. Using minicom and everything was fine.

Had a great success afterwards:

	installed from CD (palinux-0.5.iso)
	Everthing worked at once out of the box :-)
	openssh was enabled on default :-))

	only one bad touch: please do not enable portmapper on default.
	there are too much exploits out there these days.


Short:	Great great great work !!!


-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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Subject: [parisc-linux] glibc-latest tarball broken
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the glibc-latest tarball on pehc appears to be missing some important
subdirectories like scripts and sysdeps. Perhaps a legacy of the 2.2
merge?

Thanks,

Dara Hazeghi


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finally we've got a A500 for palinux testing. Unfortunately
we have some problems with it.
A 32 bit kernel complains about a very old firmware and claims
"that machine will probably never run linux"  But in fact, it 
will :-)
First question: Did anyone ever succeeded with a 32bit kernel
on that hardware ?

A 64 bit Kernel boots fine and recognizes all available hardware 
including the additional 100BT card. But it traps with the init
which comes with the latest nfsroot tarball. I built a new one
from the sourcesw of debians sysvlinux-2.78 and it does not trap
anymore, but the kernel told me about unimplemented 32 syscalls.
At this point I tried to build a 64 bit glibc in order to get
a crt1.o , which is needed to builf for a 64bit init.

Did anyone ever build a 64bit glibc out of the current cvs tree ?
Today I've got 


ologue/epilogue insn

(insn 433 431 435 (set (reg:DI 26 %r26)
        (reg:DI 2 %r2)) -1 (nil)
    (nil))
../sysdeps/unix/sysv/linux/init-first.c:105: Unrecognizable insn:

(insn 440 438 441 (set (reg:DI 24 %r24)
        (lo_sum:DI (reg:DI 1 %r1)
            (symbol_ref:DI ("LP$-001")))) -1 (insn_list 437 (nil))
    (expr_list:REG_DEAD (reg:DI 1 %r1)
        (expr_list:REG_UNUSED (reg:DI 24 %r24)
            (nil))))
../sysdeps/unix/sysv/linux/init-first.c:105: Internal compiler error in num_delay_slots, at insn-attrtab.c:2505

Thats the point I'm currently stucking.

BTW If someone involved into the port with access to the internal HP 
    Network needs access to that machine, please contact me.

Later
     Ingo

-- 
Tel: ++49-2102-908-210              German Response Center
Fax: ++49-2102-907-934              Berliner Str. 111
Mailto: Ingo_Matthaes@hp.com        40880 Ratingen
                                    Germany

HP Unix/Linux Competency Center
Network and High AvailabilitY

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Subject: Re: Single-stepping
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On Thu, 16 Nov 2000, John Marvin wrote:

> Anyway, for reference, HP-UX does single stepping by using a combination
> of the taken branch trap, and loading the instruction queues such that the
> front of the queue points to the next instruction to be single stepped and
> the back of the queue points to the first of two break instructions on a
> "break" page.  It does NOT insert break instructions into the code, so it
> does not adversely affect execution on a SMP machine.  Note that we
> already put a bunch of break instructions before the syscall entry point
> on the gateway page, so it would be easy to use our gateway page for the
> "break page".  This way, if the single stepped instruction branches, a
> taken branch trap will be taken (which is important in the case where the
> branch nullifies its delay slot).  Otherwise, the instruction will be
> executed and then the break instruction at the known location on the
> "break" page will be executed.  If the single stepped instruction
> nullifies the next instruction, the second break instruction on the
> "break" page will be executed.

This is the path I started out on for hppa-linux, then hit the problem of
a branch that nullifies it's delay slot.  At that point, I decided playing
with IAOQ_back wouldn't work as I missed the solution of enabling taken
branch traps. :-(  If I'd seen this trick, then I would not have tried
using the recovery counter, and even now, it may be better to go back to
IAOQ fiddling.  The recovery counter scheme has the disadvantage that
there's only one of them so you need to save/restore over task swaps or
introduce extra instructions in the syscall path - and be very careful.

> Note that this is the short explanation. It is not as simple as it sounds.
> One major complication is that branches with links don't work properly
> with the instruction queue magic, so the link register has to be updated
> in the taken branch trap handler. Also branch externals won't update
> the space of the space queue tail properly (again, that has to be fixed
> in the taken branch handler). I can provide more details if the recovery
> counter method doesn't work out.

I'm a little intrigued about these "complications".  How can the link
register or space _not_ be updated properly?  As far as I can see, the
only really tricky instruction to single-step is RFI - which shouldn't 
ever occur in userspace, and which we'd just emulate if it was important.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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> > Note that this is the short explanation. It is not as simple as it sounds.
> > One major complication is that branches with links don't work properly
> > with the instruction queue magic, so the link register has to be updated
> > in the taken branch trap handler. Also branch externals won't update
> > the space of the space queue tail properly (again, that has to be fixed
> > in the taken branch handler). I can provide more details if the recovery
> > counter method doesn't work out.
>
> I'm a little intrigued about these "complications".  How can the link
> register or space _not_ be updated properly?  As far as I can see, the
> only really tricky instruction to single-step is RFI - which shouldn't
> ever occur in userspace, and which we'd just emulate if it was important.

The problem is that the link register is set to IAOQ_Back + 4. and in
the case of ble, sr0 is set to IASQ_Back. Since we've played games with
the queues, IAOQ_Back and IASQ_Back are pointing at the break page, not
at the instruction following the branch.

The additional complication is that the taken branch trap traps at the
branch destination, not at the branch, so at the point of the trap you
don't know where you came from in order to fix the problem easily.  So,
what HP-UX does is check each instruction before it executes it to see if
it is a branch, and if so, what the link register is (and that is all that
needs to be parsed, since we are not emulating the instruction).  It then
stores the branch location, and also sets some branch state flags (e.g.
UBE for a branch external, and UBL for a branch with a link, both flags
being set for a ble instruction).  Then in the taken branch handler you
have all the information you need to fix the queue.  You also need
to check this saved state if a signal handler is invoked while single
stepping, so that the proper pc queue values can be saved in the signal
context.

John Marvin
jsm@fc.hp.com


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Ingo,

>
> finally we've got a A500 for palinux testing. Unfortunately
> we have some problems with it.
> A 32 bit kernel complains about a very old firmware and claims
> "that machine will probably never run linux"  But in fact, it
> will :-)

Actually, there are no plans to ever support the A500 on a 32 bit
kernel. The A500 only has 64 bit firmware, so in order to support
it we would need to write a 32->64 bit firmware translation layer.

...

> A 64 bit Kernel boots fine and recognizes all available hardware
> including the additional 100BT card. But it traps with the init
> which comes with the latest nfsroot tarball. I built a new one
> from the sourcesw of debians sysvlinux-2.78 and it does not trap
> anymore, but the kernel told me about unimplemented 32 syscalls.
> At this point I tried to build a 64 bit glibc in order to get
> a crt1.o , which is needed to builf for a 64bit init.
>

Well, it might seem crazy, but our short term plans do not include
supporting a 64 bit user environment on the 64 bit kernel.  Long term I
believe this will happen, but as you have already seen, work needs to be
done to support 64 bit glibc, shared libraries, etc.

So, in order to get the A500 to boot, we need to support the 32 bit user
environment on a 64 bit kernel.  We've only recently gotten to the point
where the 64 bit kernel gets far enough to start running user space
applications.  The problem is that we need to write translations for many
system calls, since type sizes (and the structures those types are in) are
different between 32 bit and 64 bit (the ugliest case is the ioctl system
call).

In summary, the A500 currently won't work, but since it is one of the
machines that HP has targetted for Linux support, you can be sure that
this will change fairly soon.

John Marvin
jsm@fc.hp.com


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Subject: Re: [parisc-linux] A500 and glibc woes
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Ingo Matthaes wrote:
> finally we've got a A500 for palinux testing. Unfortunately
> we have some problems with it.

Ingo,
uhmm...I'm not surprised. Let me help you understand the A500
and the direction we are going with support on the A500.
I'm one of several people working on A500 support.

A500 Features (marketing crud - you probably know this):
o 16GB of RAM
o 2-way 550 MHz PA8600
o 4 PCI-4X slots (3 of which are 1 slot per PCI bus)
o all in 2U rack mountable box.

Inside is (technical crud):
o PCX-W+
o Astro IOMMU (aka SBA. Provides cache-coherent DMA and virtual I/O DMA)
o Elroy PCI Host Bus Adapter (aka LBA)
o IOSAPIC interrupt controller (integrated in Elroy)
o PAT PDC (not legacy)
o ^B for service processor access (ie I can reset the machine remotely)
 
> A 32 bit kernel complains about a very old firmware and claims
> "that machine will probably never run linux"  But in fact, it 
> will :-)

That's right! :^)

> First question: Did anyone ever succeeded with a 32bit kernel
> on that hardware ?

No. Only on *64-bit* kernels. The reason is some of the PAT PDC
calls we need are *only* available in wide mode. We could have written
narrow<->wide mode translation routines but a 32-bit kernel ignores
the A500's best feature - 16GB of RAM. The issue is HP needs good
specweb99 numbers to sell these boxes and that requires GB of RAM.

The 512MB of RAM that 32-bit kernel currently supports (jsm tells me
3GB or so can be done) won't approach the perf levels which can be
acheived with 8 or 16GB. The HPUX specweb team (who just *beat* single
CPU TUX specweb99 numbers with HPUX on A500) told me. They have a clue.

You are welcome to write those translation routines and then
*remove* many the "#ifdef __LP64__" preprocessor directives in
arch/parisc/kernel/inventory.c and lba_pci.c. Send me the
patch and I'll test/review/commit the changes.

> A 64 bit Kernel boots fine and recognizes all available hardware 
> including the additional 100BT card. But it traps with the init
> which comes with the latest nfsroot tarball.

There are issues/problems with PCI resource management and I have
some code waiting to be tested when I get in tomorrow.

But you can be very helpful with user space! Perhaps Paul Bame
can be more specific.  But basically we don't have all the translation
routines in place for 32-bit applications invoking 64-bit kernel syscalls.

> I built a new one
> from the sourcesw of debians sysvlinux-2.78 and it does not trap
> anymore, but the kernel told me about unimplemented 32 syscalls.

Right.

> At this point I tried to build a 64 bit glibc in order to get
> a crt1.o , which is needed to builf for a 64bit init.
> 
> Did anyone ever build a 64bit glibc out of the current cvs tree ?

I don't think so. Eventually we wanted to but haven't been able yet.
So this great that you are trying!

> Today I've got 
...

Can someone one with a clue about toolchain look at that?

I'd be really impressed if someone got a 64-bit userspace built!
I can help get kernel working right but don't have a clue about the tools.

The 64-bit kernel can be booted on the following class of boxes
to about the same point as the A500:
o C160/180/200/240/360
o B2000/C3000/J5000/C3600/J5600/J6000
o some D/K/R-class machines

The key is the box must have PCX-U (PA8000), PCX-U+ (PA8200), 
PCX-W (PA8500) or PCX-W+ (PA8600) processor.

Look in the HWDB (http://www.parisc-linux.org/hw.html) or
in /usr/sam/lib/mo/sched.models (HPUX 11.x) to determine which
processor you have.


> Thats the point I'm currently stucking.
> 
> BTW If someone involved into the port with access to the internal HP 
>     Network needs access to that machine, please contact me.

Ditto. I can arrange access to my A500 as well. External access
to some limited number of people could be arranged if demand
is justifiable.  But given the number of other boxes which can
run 64-bit kernel, I hope that's not necessary.

Thanks Ingo!

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Wed, 21 Apr 1999, Justin Maurer wrote:
> when i use ./configure --prefix=/usr --with-gas --target=parisc-linux, i get
> the following error: 
> 
> Invalid configuration `parisc-linux': machine `parisc' not recognized
> Unrecognized target system name parisc-linux.

That should all be fixed now.

- Alex




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To: John Marvin <jsm@udlkern.fc.hp.com>
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On Sun, 19 Nov 2000, John Marvin wrote:

> > I'm a little intrigued about these "complications".  How can the link
> > register or space _not_ be updated properly?  As far as I can see, the
> > only really tricky instruction to single-step is RFI - which shouldn't
> > ever occur in userspace, and which we'd just emulate if it was important.
> 
> The problem is that the link register is set to IAOQ_Back + 4. and in
> the case of ble, sr0 is set to IASQ_Back. Since we've played games with
> the queues, IAOQ_Back and IASQ_Back are pointing at the break page, not
> at the instruction following the branch.

Ah.  That is a little nasty, especially given the effect on signal
handlers you mention below.  Maybe using the recovery counter isn't such a
bad idea after all, especially since the added syscall and task switch
overhead can be quite small if the kernel only supports single-step by
one instruction.

> The additional complication is that the taken branch trap traps at the
> branch destination, not at the branch, so at the point of the trap you
> don't know where you came from in order to fix the problem easily.  So,
> what HP-UX does is check each instruction before it executes it to see if
> it is a branch, and if so, what the link register is (and that is all that
> needs to be parsed, since we are not emulating the instruction).  It then
> stores the branch location, and also sets some branch state flags (e.g.
> UBE for a branch external, and UBL for a branch with a link, both flags
> being set for a ble instruction).  Then in the taken branch handler you
> have all the information you need to fix the queue.  You also need
> to check this saved state if a signal handler is invoked while single
> stepping, so that the proper pc queue values can be saved in the signal
> context.

Another question for you and/or the list in general:
Why does struct pt_regs have an ipsw field?  Seems like it currently is
unused.

Regards, Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Sandy Harris wrote:
> A couple of us have 16 diskless 712/60s which we want to use for distributed
> processing on easily parallelized tasks like factoring and perhaps crypto
> cracking. A few questions arise.
> 
> Is PARISC Linux far enough along to be useful for that? We need no monitor or
> console (except perhaps for initial debugging), no devices except ethernet,
> and expect to run only one process per machine, but we need stability.

It's not rock solid.  On 712's, it should be pretty good though.

> We'll need a host for cross-compiling. We have a 256 meg 715/100 with HP/UX
> which we expect to use as the host for booting, handing out chunks of work,
> storing results, etc. Should we compile there under HP/UX or would we get
> better tools on one of our Intel Linux boxes?

I don't think anyone has tried to cross-compile parisc-linux on an HPUX
host in quite a while.

> Or is PARISC Linux far enough along we should put it on the 715 and get
> native compilation?

AFAIK, all of the debian packages on the ISO image are built natively.
But using a dual P700 linux box would be alot faster. :^)

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Re:

> handlers you mention below.  Maybe using the recovery counter isn't such a

quite true.

> bad idea after all, especially since the added syscall and task switch
> overhead can be quite small if the kernel only supports single-step by
> one instruction.

why the limit?  We've used multi-instruction "single step" (oxymoron :)
for about 15 years on PA-RISC...no problems, efficient, and *very*
useful!
 
-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com        


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Matthew Wilcox wrote:
> On Tue, Nov 14, 2000 at 09:35:01AM -0700, Paul Bame wrote:
> ok, here's my memories.

Thanks Matthew!

hehe...sounds like someone's getting older. :^)

...
> >      * drivers/net/eepro100.c: no clue about this one
> 
> we were trying to get it to work for the Jan NYLWE show.

I think I did that. IIRC, it's a one-line change to use I/O port
space since MMIO wasn't usable without more invasive changes.

> i doubt we have any changes of note.  does anyone have an eepro in an hp?

I have picked nearly 30 i82557/i82558 PCI cards from scrap yard.
And maybe a few i82559 even. Did you need one (or two)? :^)

FWIW, this is the card/driver which I think was causing misaligned
data reference traps. I never had a chance to followup with this though.
At the time, I thought it would be *really* fun to show this working
to HP's marketing team...

> >      * fs/nfs/read.c: probably unnecessary hack for broken parisc64 gcc
> 
> we certainly don't want to send it upstream, but we don't want to take it
> out until the bug is fixed.  is fixing that bug on the webshite todo list?

I don't think so. It's possible it's already fixed.

Relevant CVS log entry:
| revision 1.5
| date: 2000/07/18 03:15:25;  author: dhd;  state: Exp;  lines: +5 -0
| ARGH!  When I put in an assertion, NFS stops breaking randomly.  I
| suspect this is a compiler or binutils problem but I can't see any
| clear differences in the generated code.  I'll debug it later...

This sounds like the hppa64 bug we saw with %r29 getting trashed.
But I don't think David was working on hppa64 kernel at the time.
I can test 32-bit NFS Root tomorrow w/o assertion if no one else
beats me to it.

> >      * include/linux/init.h: we use different section names -- why????,
> >        probably some unnecessary other differences too
> 
> because we use -ffunction-sections.  text.init clashes with a function
> called init, and the linker just merges it into the text segment.  we
> need it to be separate, so it became init.text.  there's patches around
> to do this for other architectures too.  just bad naming choices initially.

We need to resolve this in order to merge upstream.
Matthew, any advice on how we should proceed?
Or would be easier for you pester Alan Cox and just get it fixed?

> >      * include/linux/wait.h: parisc debugging -- should be removed
> 
> yeah, that can die now.

I'd be happy to fix this by clobbering the current version with what's in
linux-2.4.0-test10. But what is the "right" way to revert changes we've made
so this doesn't show up in next merge?

I'll need to know this in order to revert the fs/nfs/read.c change as well.

thanks,
grant


Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Subject: Re: [parisc-linux] Palinux on a 712/60
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> Thanks for the reply, Grant. However, the 712s do not have a serial
console.

Yes it does.. it's just  undocumented. Unfortunately I don't have the
information here, but
I have succesfully changed the console to serial on one of my 712.

Kaj-Michael Lang
milang@tal.org


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On Sun, 19 Nov 2000, Stan Sieler wrote:

> > bad idea after all, especially since the added syscall and task switch
> > overhead can be quite small if the kernel only supports single-step by
> > one instruction.
> 
> why the limit?  We've used multi-instruction "single step" (oxymoron :)
> for about 15 years on PA-RISC...no problems, efficient, and *very*
> useful!

Because you would then need to save and restore cr0 on task switches (or
only allow one task to be single-stepped at a time).  That's four
instructions and two extra memory accesses per task switch.  Which might
not seem very much, but at some point somebody will no doubt start caring
about pa-linux performance.  For a single-step by one, you can simply set
cr0 to zero on a task switch, and possibly avoid touching cr0 on a task
switch at all with careful attention to various trap handlers.

Here's the idea.  The tail of syscall_restore (64-bit stuff pruned) will
look like the following, with the first three instructions being the added
code to support single-step (and also wide/narrow switching for 64-bit)

	ldi	3,%r20
	mtctl	$r20,%cr0	/* recovery counter, ptrace single-step */
	LDREG	TASK_PT_PSW(%r1),%r20

	mtctl	%r1,%cr30			   /* intrhandler okay. */
	mfsp	%sr3,%r1			   /* Get users space id */
	mtsp	%r1,%sr4			   /* Restore sr4 */
	mtsp	%r1,%sr5			   /* Restore sr5 */
	mtsp	%r1,%sr6			   /* Restore sr6 */

	depi	3,31,2,%r31		/* ensure return to user mode. */

	mtsm	%r20				   /* restore irq state */
	mfctl	%cr27,%r20
	be	0(%sr3,%r31)			   /* return to user space */
	mtsp	%r1,%sr7			   /* Restore sr7 */

ptrace will fiddle with TASK_PT_PSW, setting the R bit and clearing the I
bit to enable the recovery counter - which will start counting down at the
mtsm instruction above, and reach zero on the user-space instruction, so
we'll trap after executing one user-space instruction.  The task-switch
nonsense is to handle the case where we page-fault on the instruction and
switch to another task also doing single-stepping.  You want to ensure cr0
is zero when we finally get back to the original task.

Now it might turn out that having extra instructions in the syscall path
is worse than extra code and memory accesses on task switch.  If that
turns out to be true, then you'll probably get your multi-step ptrace. :-)

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Mark Wild <M_Wild@tunstall.co.uk>
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Subject: [parisc-linux] Upgrading memory on a 710
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Hi,

I have acquired some 8MB SIMMs suitable for my old 710 workstation and
wish to utilise them. I don't have any docs for the 710 and was wondering
if anyone could point me in the direction of some. I've looked on the HP
website but could only find some for 712s, 720, 730 etc. Alternatively, if
anyone knows whether any motherboard links need to be changed, whether
SIMMS need to be added in pairs / quads and which memory configurations
are allowed I would be grateful.

Thanks,

Mark Wild

-- 


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On Sun, Nov 19, 2000 at 07:35:57PM +0100, Ingo Matthaes wrote:
> finally we've got a A500 for palinux testing. Unfortunately
> we have some problems with it.
> A 32 bit kernel complains about a very old firmware and claims
> "that machine will probably never run linux"  But in fact, it 
> will :-)
> First question: Did anyone ever succeeded with a 32bit kernel
> on that hardware ?

It's not intended to work; I doubt anyone has tried.  You should build
a 64 bit kernel.

> A 64 bit Kernel boots fine and recognizes all available hardware 
> including the additional 100BT card. But it traps with the init
> which comes with the latest nfsroot tarball. I built a new one
> from the sourcesw of debians sysvlinux-2.78 and it does not trap
> anymore, but the kernel told me about unimplemented 32 syscalls.
> At this point I tried to build a 64 bit glibc in order to get
> a crt1.o , which is needed to builf for a 64bit init.

Don't try a 64-bit userland yet.  What you need to do is implement
some of the 32-bit syscalls.

-- 
Revolutions do not require corporate support.


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] CVS linux Vs. -test10
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Cc: Matthew Wilcox <matthew@wil.cx>, parisc-linux@puffin.external.hp.com
To: Grant Grundler <grundler@cup.hp.com>
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On Sun, Nov 19, 2000 at 11:44:42PM -0800, Grant Grundler wrote:
> Matthew Wilcox wrote:
> > On Tue, Nov 14, 2000 at 09:35:01AM -0700, Paul Bame wrote:
> > ok, here's my memories.
> 
> Thanks Matthew!
> 
> hehe...sounds like someone's getting older. :^)

... when i were a lad, all this were fields!  Our dad used to kill us
every morning, we'd get up half an hour before we went to bed and walk
uphill both to and from school...

> ...
> > >      * drivers/net/eepro100.c: no clue about this one
> > 
> > we were trying to get it to work for the Jan NYLWE show.
> 
> I think I did that. IIRC, it's a one-line change to use I/O port
> space since MMIO wasn't usable without more invasive changes.

sounds right.  MMIO should work now though, right?

> > i doubt we have any changes of note.  does anyone have an eepro in an hp?
> 
> I have picked nearly 30 i82557/i82558 PCI cards from scrap yard.
> And maybe a few i82559 even. Did you need one (or two)? :^)

Heh, I only have a 712 right now :-)

> FWIW, this is the card/driver which I think was causing misaligned
> data reference traps. I never had a chance to followup with this though.
> At the time, I thought it would be *really* fun to show this working
> to HP's marketing team...

Oh yes, I remember that now.  Tulip always does a copy (well, it doesn't _have_
to, but we tell it to, just like the Alpha does).

> > >      * fs/nfs/read.c: probably unnecessary hack for broken parisc64 gcc
> > 
> > we certainly don't want to send it upstream, but we don't want to take it
> > out until the bug is fixed.  is fixing that bug on the webshite todo list?
> 
> I don't think so. It's possible it's already fixed.
> 
> Relevant CVS log entry:
> | revision 1.5
> | date: 2000/07/18 03:15:25;  author: dhd;  state: Exp;  lines: +5 -0
> | ARGH!  When I put in an assertion, NFS stops breaking randomly.  I
> | suspect this is a compiler or binutils problem but I can't see any
> | clear differences in the generated code.  I'll debug it later...
> 
> This sounds like the hppa64 bug we saw with %r29 getting trashed.
> But I don't think David was working on hppa64 kernel at the time.
> I can test 32-bit NFS Root tomorrow w/o assertion if no one else
> beats me to it.

it was definitely a 32-bit kernel at the time.  It might be the same bug,
but I'm not sure.

> > >      * include/linux/init.h: we use different section names -- why????,
> > >        probably some unnecessary other differences too
> > 
> > because we use -ffunction-sections.  text.init clashes with a function
> > called init, and the linker just merges it into the text segment.  we
> > need it to be separate, so it became init.text.  there's patches around
> > to do this for other architectures too.  just bad naming choices initially.
> 
> We need to resolve this in order to merge upstream.
> Matthew, any advice on how we should proceed?
> Or would be easier for you pester Alan Cox and just get it fixed?

Hm.  Alan's not hacking on 2.4, last I heard.  I might pester Linus and
see if we can change that.  It's a mechanical change so he might not be
averse to it at this point.  Bear in mind we don't need to do a complete
merge at this point -- most architectures have a separate patch to apply
on top of Linus' tree.

> > >      * include/linux/wait.h: parisc debugging -- should be removed
> > 
> > yeah, that can die now.
> 
> I'd be happy to fix this by clobbering the current version with what's in
> linux-2.4.0-test10. But what is the "right" way to revert changes we've made
> so this doesn't show up in next merge?

I don't know that there's an official way to do this.  I always changed
the file to its previous state and then committed it.  There are a number of
ways of doing it; perhaps the cleanest is:

cvs diff -r1.4 -r1.5 fs/nfs/read.c >../read.c.diff
(then check the read.c.diff file)
patch -p1 <../read.c.diff
rm ../read.c.diff

or you can just delete the lines yourself.  Use diff to make sure there
aren't any silly cosmetic changes (eg whitespace).

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] CVS linux Vs. -test10
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Matthew Wilcox wrote:
...
> sounds right.  MMIO should work now though, right?

It would have worked then too.
Changing it to use MMIO space would require disabling I/O Port space
by defining inb/outb locally to use gsc_readb/writeb.
My problem with doing that was the semantics are slightly different.
I/O Port space is non-postable and MMIO space is. I wasn't confident
a driver written to use I/O port space would work right under MMIO
though some certainly do.

...
> it was definitely a 32-bit kernel at the time.  It might be the same bug,
> but I'm not sure.

Can't be. AP (%r29) is a 64-bit only construct.
dhd also just confirmed it was 32-bit kernel.
I'll try it now.

...
> > We need to resolve this in order to merge upstream.
> > Matthew, any advice on how we should proceed?
> > Or would be easier for you pester Alan Cox and just get it fixed?
> 
> Hm.  Alan's not hacking on 2.4, last I heard.  I might pester Linus and
> see if we can change that.  It's a mechanical change so he might not be
> averse to it at this point.  Bear in mind we don't need to do a complete
> merge at this point -- most architectures have a separate patch to apply
> on top of Linus' tree.

Ok. What's the first step to getting arch/parisc* and include/asm-parisc*
into Linus's tree?

I had dinner with Bdale Garbee last night and one of two things he made
clear was we need to unfork from debian and linus's tree in order to move
forward. All our CVS branches need to become obsolete or "local sandboxes"
of the respective upstream partners. Feeding kernel bits upstream will
bring a new level of visibility (and *HELP*) to the parisc-linux port.

I totally agree with Bdale. I understand alot of work still needs to
happen in our tree (eg though sba_iommu.c works, it's current form sucks)
But pushing bits upstream to linus will not preclude us from doing that work.

I also find it odd that glibc is merged upstream *before* the kernel is.

For the record, the second issue bdale made clear was we need "boot
floppies" debian package working. We don't need more ISO images (no
offense to pjlahaie for his good work). "Boot floppies" is a pre-requisite
to becoming part of the next debian release. Given I still don't have
a clue how to build a debian package and I can still contribute alot
in other areas, it doesn't make sense for me to do it myself.


> > I'd be happy to fix this by clobbering the current version with what's in
> > linux-2.4.0-test10. But what is the "right" way to revert changes we've made
> > so this doesn't show up in next merge?
> 
> I don't know that there's an official way to do this.  I always changed
> the file to its previous state and then committed it.  There are a number of
> ways of doing it; perhaps the cleanest is:
> 
> cvs diff -r1.4 -r1.5 fs/nfs/read.c >../read.c.diff
> (then check the read.c.diff file)
> patch -p1 <../read.c.diff
> rm ../read.c.diff
> 
> or you can just delete the lines yourself.  Use diff to make sure there
> aren't any silly cosmetic changes (eg whitespace).

The part you described above is the easy part - np.
I'm worried about labels and tracking how we "name" the releases.
Mang or other CVS ninja's care to comment?

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Some updates just to keep everybody up to date on what's happened:

- the primary FTP server for PARISC Linux is ftp://puffin.external.hp.com,
pleasantly sponsored by Hewlett Packard

- there's now tar balls of raw source code, debian packages, rpms, source
rpms, and now daily checkouts of CVS in .tar.gz format on the FTP server

- I've updated the WWW pages to reflect these changes, including the CVS
server move announced earlier.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] signal handling problems (32 bit kernel)
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Hi,
  Following on from my problems with SEGV last week, I've come up with
a few signal handling issues:

=============================================================

parisc:signal.c

        /* Possibly bogus. */
#warning XXX FIXME probably bogus -PB
        /* I think this is bogus -- it'll cause the first instn of the
         * signal handler to be executed twice!  Better might be to
         * set iaoq[0] to one of the NOPs in the trampoline. -PB
         */
        regs->iaoq[0] = (unsigned long) haddr | 3;
        regs->iaoq[1] = (unsigned long) haddr | 3;

This causes real problems if the signal handler is a dynamic object
which has not yet been resolved; in that case the signal handler
points at the b,l instr in the following at the end of the .plt:

    2700:       0e 80 10 96     ldw  0(sr0,r20),r22
    2704:       ea c0 c0 00     bv r0(r22)
    2708:       0e 88 10 95     ldw  4(sr0,r20),r21
    270c:       ea 9f 1f dd     b,l 2700 <__DTOR_END__+0x54>,r20
    2710:       d6 80 1c 1e     depwi 0,31,2,r20

typically that results in a misalligned access on the first ldw
as r20 is screwed.

I've fixed that by setting iaoq[1] = iaoq[0]+4.  Is that OK, or
should we use the NOP approach in the comment above?

=============================================================

If a program gets a SEGV, fixes the cause of it in its signal
handler, and returns, then the faulting instruction is not rerun.
I think that's wrong (differs from m68k anyway).

=============================================================

Set the following program running:

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>

int v[8];

void (* fp)(int);

void sig_handler(int sig)
{
}

void poke(int i)
{
        v[0] = i; v[1] = i; v[2] = i; v[3] = i;
        v[4] = i; v[5] = i; v[6] = i; v[7] = i;
}

int main()
{
        int j, i = 0;
        struct sigaction act;

        memset(&act, 0, sizeof(act));
        act.sa_handler = sig_handler;
        sigaction(SIGUSR1, &act, NULL);

        fp = sig_handler;
        fp(0);
        printf("I am %d\n", getpid());
        while (1) {
                poke (++i);
                j = v[7];
                if (j != i)
                        printf("Wah!\n");
        }
}


and then in another terminal do 'kill -USR1 <pid>'.  The program
either goes 'Wah!', gives a SEGV, or works.  That seems to be because
%r1 is corrupted while processing the signal.  The signal handler ends
with a syscall (rt_sigreturn_wrapper), and %r1, at least, is not saved
and restored over the syscall.  %r31 also appears to get corrupted, as
it is used in the final branch of the syscall return.

Richard



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To: alan@linuxcare.com.au (Alan Modra)
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Re:

> Because you would then need to save and restore cr0 on task switches (or
> only allow one task to be single-stepped at a time).  That's four
> instructions and two extra memory accesses per task switch.  Which might
> not seem very much, but at some point somebody will no doubt start caring
> about pa-linux performance. 

And it still won't seem like much, then!

Non-memory-access instructions are cheap.  An extra memory reference (from
something probably already in cache) and two extra instructions
would probably cost less than an hour per CPU over the next 10 *years*,
assuming 10 years of 1000 task switches per second on a slow 100 MHz CPU.

Of course, at the cost of an extra non-memory-referencing instruction or so,
you could say "at switch-to-task time: if PSW R-bit set, then load the saved
CR0 from memory and move it to CR0", saving one memory reference 99.99999%
of the time, resuling in an average of only one memory reference
per task switch normally.

I haven't look at interrupt handling / system calls closely, but I
hope there aren't other false savings.  (E.g., failure to save/restore
the PID check flag ... sure, user processes *now* probably never have
pid checking disabled, but that's a very useful feature to have
available (with proper security controls, of course).)
(Yes, I'm one of the very few who use that feature on MPE/iX ... carefully,
of course :)

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com        


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Xref: news.gmane.org gmane.linux.ports.parisc:8532

Matthew Wilcox wrote:
...
> >      * fs/nfs/read.c: probably unnecessary hack for broken parisc64 gcc
> 
> we certainly don't want to send it upstream, but we don't want to take it
> out until the bug is fixed.  is fixing that bug on the webshite todo list?

It's fixed. I was able to NFS boot my A180 and install  palinux-0.5.iso
bits on the SCSI disk. I've reverted the change to the LINUS_240_TEST10
version.

> >      * include/linux/wait.h: parisc debugging -- should be removed
> 
> yeah, that can die now.

Is anyone else already doing this?

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Tue, 14 Nov 2000, Paul J.Y. Lahaie wrote:

> This is to answer all the questions about sti console.  Currently, in the
> CVS tree, serial console and STI console cannot be turned on at the same time.
>
> This means that a choice between serial/sti needs to be done at compile
> time.

> If you have any more questions or suggestions, feel free to email me or
> post on this list.  Thank you.

... Query --

Background: Back in the early 70's with a HP 8090 <?>, IBM 1401, IBM
1620, and IBM 360/40, we faced such issues (Don't ask my age,
please)  -- The solution was to probe for, and look for 'sense
switches' in unusual state -- that is -- Some condition which we
could examine, and yet not hose up the boot proces on the host. --
CapsLock set on a keyboard driver -- DSR on a serial line, a
'console sense switch' normally kept off but turned on ... so on.
Sort of like working through a qualitative analysis flowchart in
non-organic chemistry.

Is this possible, to allow support of both, with a single kernel?

-- Russ



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"Russ" herrold wrote:

> Is this possible, to allow support of both, with a single kernel?

Yes. I think the issues are code not stomping on each other.
And it's easy than you might think - PDC can tell us what the
primary console is.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:14:14 2018
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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] 712 ISL and palo
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Hi Paul (Bame),

I tried booting 712 with "bo scsi.4.0 isl" with the
palinux-0.5.iso image on a regular hard disk.
I wanted to edit the "root" parameter so it would
be /dev/sdb (also had a disk at scsi.0.0) instead of
/dev/scd0.

palo wouldn't accept any ps/2 keyboard input.
Don't know if this is a palo or PDC bug.
Any ideas?

thanks,
grant


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Subject: Re: A DT_INIT/DT_FINI glibc patch.
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On Thu, 16 Nov 2000, H . J . Lu wrote:

> While we are on this subject, I looked at the hppa code. It seems to
> have the same bug. I have an impression that HP never really used
> DT_INIT/DT_FINI. They use DT_INIT_ARRAY/DT_FINI_ARRAY. I don't know
> if we should fix hppa also.

Yes to all of these comments.  elf32-hppa stole some ideas from ia64,
which is why the bug is common.

Fortunately, I think hppa ld.so etc. can be fixed in a way such that
current (broken ABI) binaries will still work.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] glibc-latest tarball broken
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dhazeghi@pacbell.net writes...

> the glibc-latest tarball on pehc appears to be missing some important
> subdirectories like scripts and sysdeps. Perhaps a legacy of the 2.2
> merge?

Disk space problem. I made some room and generated new tarballs.

Thanks for pointing out the problem.

-- 
Matt Taggart
taggart@fc.hp.com



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On Mon, 20 Nov 2000, Grant Grundler wrote:

> I'm afraid we will break binary compatibility for elf32 hppa-linux again.
> I only raise this in case there is really a "right" way to fix the
> DT_INIT/DT_FINI problem.

The fix involves pruning out all the special handling in bfd/elf32-hppa.c
for DT_INIT,DT_FINI, and making some small changes to glibc.  H.J. Lu has
already made the necessary framework changes, and all we need to do is
something like

#define DL_FUNCTION_ADDRESS(map, addr) _dl_start_address (map, addr)
#define DL_DT_INIT_ADDRESS(map, addr) \
  ((addr) & 2 ? (addr) : DL_FUNCTION_ADDRESS (map, addr))

with similar defines for DT_FINI.  The test for (addr) & 2 is the
fairly innocuous fudge to support old binaries.


Another glibc issue (which is why I'm sending this back to the list) is
that there has been quite some discussion on the binutils list over the
use of the EI_OSABI field.  The conclusion being that it isn't really
correct to use this field to discern the intendend execution platform.
It's purpose is really to tell ELF tools that a file contains fields and
values that need to be interpreted in a non-standard way.  Since both
elf32-hppa and elf64-hppa follow the standards, I'm inclined to think that
the gnu tools should set EI_OSABI to zero for both HPUX and Linux targets.

Instead the .note.ABI-tag section should be examined to determine the
target, which sadly isn't set correctly at the moment.  :-(

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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Subject: Re: [parisc-linux] 712 ISL and palo
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= palo wouldn't accept any ps/2 keyboard input.
= Don't know if this is a palo or PDC bug.
= Any ideas?

PALO bug.  I didn't test the PS/2 case but I think I fixed it.

	-P


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From: Phil Schwan <pschwan@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [prumpf@jcsbs.lanobis.de: temporary registers]
Date: Fri, 30 Apr 1999 01:50:03 -0400
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This mail was sent while I was moving the mailing lists to their new
home.  I apologise for the delay.

-Phil

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From: Philipp Rumpf <prumpf@jcsbs.lanobis.de>
To: parisc-linux@thepuffingroup.com
Subject: temporary registers
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I am currently trying to get basic kernel stuff for the pa1.1 port to work.
We have 6 temporary registers that are read/writable by PL0-code only. I
think we should use them to save commonly used values to have them ready
in interrupt handlers.

I propose to use them in the following way:

CR24 - current, 0 while we are handling an interruption
	current is where the registers' contents are stored when we enter
an interruption handler. We have to set it to some "special value" when we
already use the register save slots in current so we don't overwrite them.
(we can save the registers on the kernel stack in that case).

CR30 - kernel stack pointer, 0 when we are using the kernel stack
	when this is 0, GR30 is the valid kernel stack pointer

CR31 - kernel global pointer

this leaves us 3 more registers to save the registers in to handle inter-
ruptions.

	Philipp

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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: A DT_INIT/DT_FINI glibc patch.
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On Tue, 21 Nov 2000, I wrote:

> Instead the .note.ABI-tag section should be examined to determine the
> target, which sadly isn't set correctly at the moment.  :-(

Actually, it is set correctly.  A comment in csu/abi-note.S was wrong.

-- 
Linuxcare.  Support for the Revolution.


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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Use of the EI_OSABI field
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> Another glibc issue (which is why I'm sending this back to the list) is
> that there has been quite some discussion on the binutils list over the
> use of the EI_OSABI field.  The conclusion being that it isn't really
> correct to use this field to discern the intendend execution platform.
> It's purpose is really to tell ELF tools that a file contains fields and
> values that need to be interpreted in a non-standard way.  Since both
> elf32-hppa and elf64-hppa follow the standards, I'm inclined to think that
> the gnu tools should set EI_OSABI to zero for both HPUX and Linux targets.

I don't read the binutils mailing list, so I checked the archive.  In my
opinion I didn't see a discussion, I saw H.J.  Lu repeatedly asserting
this "fact".  He may or may not be correct about original intention, but
the implementation so far has been that EI_OSABI is used to tell what the
target platform is.  That is what FreeBSD is doing, that is what HP-UX is
doing, and that is what the IA-64 Unix System V Application Binary
Interface specifies:

  http://developer.intel.com/design/IA-64/Downloads/24537002.pdf

Note that the second paragraph in section 1.1 of that specification
includes the following:

    This document is the result of consensus among operating system
    vendors intending to provide UNIX and UNIX workalike operating
    systems on the IA-64 architecture. The vendors participating in
    this effort include Intel, Sun Microsystems, SCO, IBM, SGI,
    Cygnus Solutions, VA Linux Systems, HP, and Compaq.

So, If the specification is wrong according to H.J. Lu, why did both
Cygnus and VA Linux Systems not object to this:

    Section 4.1.1.4 Operating System Identification

    The e_ident[EI_OSABI] value identifies the operating system and
    ABI to which the object is targeted, as listed in Table 4-1.

Table 4-1 lists the various ELFOSABI_* fields, e.g. ELFOSABI_HPUX,
ELFOSABI_NETBSD, ELFOSABI_LINUX, etc.

Note also, that the current mechanism for us to be able to differentiate
elf executables in the Linux kernel is the machine dependent
elf_check_arch() macro, whose only argument is a pointer to a
elf32_hdr or elf64_hdr. I think it would be ugly to try to get the
.note.ABI-tag section first for every exec of a new binary in order
to determine what the target ABI is.

In my opinion, unless H.J. Lu can get the IA-64 ABI changed, it is too
late to assert his view of what that field was supposed to be. Please
leave the EI_OSABI field set to ELFOSABI_LINUX until a better consensus
on this issue is reached.

John Marvin
jsm@fc.hp.com


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] signal handling problems (32 bit kernel)
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On Mon, 20 Nov 2000, Richard Hirst wrote:

> #warning XXX FIXME probably bogus -PB
>         /* I think this is bogus -- it'll cause the first instn of the
>          * signal handler to be executed twice!  Better might be to

Definitely bogus, as with quite a lot of iaoq manipulation in signal.c

> I've fixed that by setting iaoq[1] = iaoq[0]+4.  Is that OK, or

Sounds like the right thing to do.  I reckon everywhere ioaq is fudged
from/to r31 should have this sort of mapping.  ie. it should be

	regs->gr[31] = regs->iaoq[0];

in sys_rt_sigreturn, and

	err |= __put_user(regs->gr[31], &sc->sc_iaoq[0]);
	err |= __put_user(regs->gr[31] + 4, &sc->sc_iaoq[1]);

in setup_sigcontext, and so on.  I'm guessing the origial author of this
code didn't know which of iaoq[0] and ioaq[1] was ioaq_front. :)

> and then in another terminal do 'kill -USR1 <pid>'.  The program
> either goes 'Wah!', gives a SEGV, or works.  That seems to be because
> %r1 is corrupted while processing the signal.  The signal handler ends
> with a syscall (rt_sigreturn_wrapper), and %r1, at least, is not saved
> and restored over the syscall.  %r31 also appears to get corrupted, as
> it is used in the final branch of the syscall return.

I don't really understand what is going on here, but it seems wrong to me
that setup_rt_frame should be touching regs->iaoq at all when in_syscall.

Hmm, and in that case why all the other gr[31] to/from ioaq[] fudgery?

Alan
-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] signal handling problems (32 bit kernel)
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On Tue, Nov 21, 2000 at 06:05:36PM +1100, Alan Modra wrote:
> On Mon, 20 Nov 2000, Richard Hirst wrote:
> 
> > #warning XXX FIXME probably bogus -PB
> >         /* I think this is bogus -- it'll cause the first instn of the
> >          * signal handler to be executed twice!  Better might be to
> 
> Definitely bogus, as with quite a lot of iaoq manipulation in signal.c

As another example, if a process gets a signal as it is about to
execute the instr in the delay slot of a branch, it forgets that it
was supposed to be branching on return from the signal handler.  Try
compiling the following and sending it a SIGUSR1:

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>

void sig_handler(int sig)
{
}

int main()
{
        struct sigaction act;
        int i = 1;

        memset(&act, 0, sizeof(act));
        act.sa_handler = sig_handler;
        sigaction(SIGUSR1, &act, NULL);

        printf("I am %d\n", getpid());
        while (i++)
                ;
        printf("Escaped, i=%d!\n", i);
        return 0;
}


Oh, you have to run it with "LD_BIND_NOW=1 <progname>" to avoid one of
the other problems.

Time to try and work out what signal.c is really trying to do, I guess.

Richard


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] signal handling problems (32 bit kernel)
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On Tue, 21 Nov 2000, Richard Hirst wrote:

> Time to try and work out what signal.c is really trying to do, I guess.

Maybe you should start by considering all the possible states a task can
be in when a signal is delivered, in regards to saved registers and stack
layout.  It would be a _very_ good idea to formalize this once you've
sorted it out by splitting up struct pt_regs appropriately.  ie. as other
architectures do, into struct pt_regs and struct switch_stack.  Actually,
parisc could go one further and have three structures, one corresponding
to registers saved on syscall entry (new pt_regs), one corresponding to
macro callee_save (switch_stack), and one corresponding more or less to
macro save_specials.  Quite a bit of work, but IMO well worth doing.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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On Mon, Nov 20, 2000 at 09:34:31AM -0800, Grant Grundler wrote:
> Ok. What's the first step to getting arch/parisc* and include/asm-parisc*
> into Linus's tree?

Someone (probably me) sends him a patch.  He told me at the Toronto
show that he was quite happy to apply anything that only touched those
two directories. (oh, and drivers/gsc wouldn't be a problem either).
Can I just check that no-one wants to rename drivers/gsc again?  :-)

> I had dinner with Bdale Garbee last night and one of two things he made
> clear was we need to unfork from debian and linus's tree in order to move
> forward. All our CVS branches need to become obsolete or "local sandboxes"
> of the respective upstream partners. Feeding kernel bits upstream will
> bring a new level of visibility (and *HELP*) to the parisc-linux port.

that's true.  last time we discussed this several people were unhappy
with the idea of sending our current work to Linus.  Is anyone unhappy
with doing this now?

> I also find it odd that glibc is merged upstream *before* the kernel is.

glibc is more portable :-)

> The part you described above is the easy part - np.
> I'm worried about labels and tracking how we "name" the releases.
> Mang or other CVS ninja's care to comment?

don't tag it.  just commit it.  tags are laid down at big events, not
when you fix bugs or undo changes.

-- 
Revolutions do not require corporate support.


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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: Re: CVS linux Vs. -test10
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Xref: news.gmane.org gmane.linux.ports.parisc:8547

> > I had dinner with Bdale Garbee last night and one of two things he made
> > clear was we need to unfork from debian and linus's tree in order to move
> > forward. All our CVS branches need to become obsolete or "local sandboxes"
> > of the respective upstream partners. Feeding kernel bits upstream will
> > bring a new level of visibility (and *HELP*) to the parisc-linux port.
>
> that's true.  last time we discussed this several people were unhappy
> with the idea of sending our current work to Linus.  Is anyone unhappy
> with doing this now?
>

Are we suggesting that we populate include/asm-parisc* and arch/parisc*
WITHOUT the machine independent changes in the rest of the tree?
If that is the case, I guess I don't object, although I would want
to make sure that Linus knew the state of the code, and that it would
not work without a patch containing changes to the machine independent
part, and that followup patches to these branches are likely to be
huge. We should also add a README in arch/parisc that explains the
above (and where to get patches, how to access CVS, etc.). We also
need someone to set up an automatic nightly? patch generator.

I certainly don't want to try to get the machine independent changes in
yet, since we still have some major issues to fix/clean there, and I doubt
Linus would want them at this time anyway.

John Marvin
jsm@fc.hp.com


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] signal handling problems (32 bit kernel)
Date: Tue, 21 Nov 2000 16:54:42 +0000
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To: Alan Modra <alan@linuxcare.com.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:8548

On Tue, Nov 21, 2000 at 06:05:36PM +1100, Alan Modra wrote:
> > and then in another terminal do 'kill -USR1 <pid>'.  The program
> > either goes 'Wah!', gives a SEGV, or works.  That seems to be because
> > %r1 is corrupted while processing the signal.  The signal handler ends
> > with a syscall (rt_sigreturn_wrapper), and %r1, at least, is not saved
> > and restored over the syscall.  %r31 also appears to get corrupted, as
> > it is used in the final branch of the syscall return.
> 
> I don't really understand what is going on here, but it seems wrong to me
> that setup_rt_frame should be touching regs->iaoq at all when in_syscall.

Problem is that whenever a signal handler is invoked, it is followed
by a sys_rt_sigreturn syscall (invoked via the trampoline code), before
returning to original usercode.  I can imagine that this might work if
the process in question was blocked on a syscall, but not if it was
suspended due to an interrupt.  In either case the path back to the
original user code is the syscall return path, and that obviously cannot
put things back as they were if the process was interrupted.

I think the answer is for syscall_do_signal to save enough in the
pt_regs such that sys_rt_sigreturn_wrapper can return to userland
via an RFI (like intr_restore, but remembering to trace the syscall
exit if necessary) regardless of the process state when the signal
occurred.

Richard


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] kernel BUG at sched.c:692!
Date: Tue, 21 Nov 2000 10:20:35 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:8549

I arrived this morning to discover both my B160 and my C3000 were printing the 
following as fast as they could,

Scheduling in interrupt
kernel BUG at sched.c:692!

Looking at linux/kernel/sched.c here's the relevant section,

690 scheduling_in_interrupt:
691         printk("Scheduling in interrupt\n");
692         BUG();
693         return;

scheduling_in_interrupt is called from line 516. Here's some context,

500 asmlinkage void schedule(void)
501 {
502         struct schedule_data * sched_data;
503         struct task_struct *prev, *next, *p;
504         struct list_head *tmp;
505         int this_cpu, c;
506
507         if (!current->active_mm) BUG();
508         if (tq_scheduler)
509                 goto handle_tq_scheduler;
510 tq_scheduler_back:
511
512         prev = current;
513         this_cpu = prev->processor;
514
515         if (in_interrupt())
516                 goto scheduling_in_interrupt;
517
518         release_kernel_lock(prev, this_cpu);


I thought it was odd that both systems chose to freak out last night when I 
have never seen this problem on either of them. The B160 is running a slightly 
newer kernel and had been up for about 3 days as of last night. The C3K had 
been up for 4-5 days. When I left last night the B160 was doing a build 
although the it looks like the build died before this problem occurred. The 
C3K was idle.

Any ideas?

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com



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Subject: [parisc-linux] cd .5
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Hi All,
I have HP9000/d212 I was able to boot off the cdrom image no problem, 
however when I get the login prompt I am only able to type in two 
characters and the screen redraws itself and prompts me for a login. I am 
using a HP700 serial terminal on ttyS0.I briefly scanned the mailing list 
but did not find anything. Any help would be appreciated.
--Robert Reilly

GE Capital Card Service
UNIX Administrator
robert.reilly@gecapital.com


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From: Alex deVries <adevries@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Developers getting hardware.
Date: Fri, 30 Apr 1999 14:19:09 -0400 (EDT)
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We're nearly at the point now where it's impossible to do development
without actual PA RISC hardware.  It's in everyone's best interest to make
sure that the developer's who need this hardware have access to it.

Already, 10 different people will get or have gotten shiny new A class
boxes from HP. The A180's are the first platform we're targetting. We
will eventually expand to other boxes, and the differences won't be
noticed until we get to device drivers.

There's a lot of people who are keen on doing development but who don't
have hardware.  If you are one of them, even if you've already contacted
me, please email me at adevries@thepuffingroup.com and tell me:
- where you live
- if you have a sync-on-green monitor
- what you think you can contribute

I've also gotten offers from people who have hardware they are willing to
loan or donate.  Even if you have contacted me in the past, please email
me at adevries@thepuffingroup.com and I'll do my best to match you up with
the right developer.  Please tell me:
- where you are
- what hardware you have

If you're within HP and have already talked to me, please ignore this.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: CVS linux Vs. -test10
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On Tue, Nov 21, 2000 at 06:11:29AM -0700, John Marvin wrote:
> Are we suggesting that we populate include/asm-parisc* and arch/parisc*
> WITHOUT the machine independent changes in the rest of the tree?

Yes.

> If that is the case, I guess I don't object, although I would want
> to make sure that Linus knew the state of the code, and that it would
> not work without a patch containing changes to the machine independent
> part, and that followup patches to these branches are likely to be
> huge. We should also add a README in arch/parisc that explains the
> above (and where to get patches, how to access CVS, etc.). We also
> need someone to set up an automatic nightly? patch generator.

Agreed.  The patch generation is not a big deal to arrange.

> I certainly don't want to try to get the machine independent changes in
> yet, since we still have some major issues to fix/clean there, and I doubt
> Linus would want them at this time anyway.

Certainly none of the stack direction changes.  Some of the MI stuff is
arguably stuff we could put in.

-- 
Revolutions do not require corporate support.


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From: "Alexandru Pirvulescu" <Pirvulescu_Alexandru@telemobil.ro>
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Subject: [parisc-linux] case LEDs
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Hello

Is there any possibility to activate the case LEDs? I mean the heartbeat and
the network activity
I have a A180 machine

Alex



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"Alexandru Pirvulescu" wrote:
> Hello
> 
> Is there any possibility to activate the case LEDs? I mean the heartbeat and
> the network activity. I have a A180 machine.

Yes.
I was already asked this weekend to dig up technical info on LED
and soft power control. I guess this is my reminder to do that. :^)

grant


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Robert Reilly wrote:
> Hi All,
> I have HP9000/d212 I was able to boot off the cdrom image no problem, 
> however when I get the login prompt I am only able to type in two 
> characters and the screen redraws itself and prompts me for a login. I am 
> using a HP700 serial terminal on ttyS0. I briefly scanned the mailing list 
> but did not find anything. Any help would be appreciated.

Robert,
I would suspent the terminal isn't configured correctly for the
serial connection. Is it set up for 9600 baud, 8 data bits, no parity,
1 stop bit?

I'm pretty sure you have the baud rate correct since you get a login
prompt. I'm not sure all the other things must be correct to get 
that far.

I'm not familiar with "HP700 serial terminal". But all the HP terminals
I've worked with in the past also support vt100 emulation mode. You
probably want to set that too.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Kailashnath V Rampure <kailasr@webcash.com>
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Subject: [parisc-linux] Apache package.
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Hi Paul,

I have installed Apache + mod_ssl + mod_perl on HP A Class server.
I need help on to change the server looking fort bootpd server and put the 
IP address on the system. Also where can I find the ftp client for linux .

Regards
Kalas

At 04:59 PM 11/15/00 -0700, Paul Bame wrote:
>= I tried to build apache_1.3.12 on HP a class server. But I have error. I
>= have tried to check the site
>= ftp://ftp.debian.org/debian/dists/unstable/main/binary-hppa/
>= I could not find one. I found some apache-doc etc.
>
>We are still working on some kernel features which are required to
>support Apache (system 5 shared memory).
>
>         -P


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Matthew Wilcox wrote:
...
> Someone (probably me) sends him a patch.  He told me at the Toronto
> show that he was quite happy to apply anything that only touched those
> two directories. (oh, and drivers/gsc wouldn't be a problem either).
> Can I just check that no-one wants to rename drivers/gsc again?  :-)

Hi Mathew,
I don't and it's a good question.
I would like a few files moved:

arch/parisc/kernel/ccio-dma.c    -> drivers/gsc/ccio-dma.c
arch/parisc/kernel/ccio-rm-dma.c -> drivers/gsc/ccio-rm-dma.c

    ccio will *always* be associated with a GSC bus since that's
    the secondary bus. And ccio supports devices below dino.c which
    already lives in drivers/gsc.

arch/parisc/kernel/lba_pci.c     -> drivers/ropes/lba_pci.c
arch/parisc/kernel/sba_iommu.c   -> drivers/ropes/sba_iommu.c
arch/parisc/kernel/iosapic.c     -> drivers/ropes/iosapic.c

    lba/sba code is equivalent to dino/ccio code for another set
    of platforms. And long term, I'm certain iosapic.c does not
    belong under arch/parisc. I can do this move if there are no
    major objections.

Any reason why we couldn't do these moves *after* you submit a patch?


FWIW, here are issues I see with merging IA64 iosapic code with mine:
o iosapic "discovery" (I invented register_iosapic() interface for parisc)
o parisc PDC calls (initialization)
o interrupt policy decisions (eg EOI generation and picking a CPU)
o I don't have time to do it in the near future.

Folks working on IA64 stuff inside HP need to think about:
(a) if they want to do the merge any time soon
(b) which iosapic.c they want to start with
(c) where the final version should live

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Subject: [parisc-linux] Fun build problems
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Hello everyone,

    Over the last couple of days, I've been trying to get the debian
boot-floppies building (I know some changes will be necessary) and as
it stands now, several packages are missing.  In the process of trying
to compile/install these packages, I've run into some difficulties.
Here are some of them:

apt   -- Package on pehc and .iso do not work.  Missing lots of helper apps.

Seeing as apt was broken, I decided to download the woody version of apt so
I can get a newer version and hopefully skip some steps in building the
above packages.  gcc 2.96 and apt-0.3.19 don't get along, so I tried picking
it up from cvs (supposed to have been fixed).  Follow the directions on
cvs.debian.org

$ cvs -d :pserver:anonymous@cvs.debian.org:/cvs/APT login
(Logging in to anonymous@cvs.debian.org)
CVS password:=20
cvs login: authorization failed: server cvs.debian.org rejected access

Anyone know if there are other instructions other than what cvs.debian.org
says?  If so, feel free to email me


rsync -- ldd crashes on dpkg-shlibdepends stage

Can I just manually put the required dependancies in?


autoconf -- installinfo spins

When installing the autoconf package (to compile dpkg) installinfo spins.
And after several minutes still doesn't return.  It's taking up 100% cpu
at the time.

If I abort this, autoconf seems to be installed but cannot generate the
dpkg configure properly, some macros are missing

AM_CONDITIONAL(HAVE_CPLUSPLUS, test "$CXX" !=3D "")

Is in the ./configure script.


info -- Reinstall spins

If I try to reinstall info, it spins on the uninstall.  100% cpu.


If anyone has any solutions for any of the above problems, I am all
ears (eyes?).

							- Paul

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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Use of the EI_OSABI field
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To: John Marvin <jsm@udlkern.fc.hp.com>
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cc to binutils because John makes some salient points.

On Mon, 20 Nov 2000, John Marvin wrote:

> > Another glibc issue (which is why I'm sending this back to the list) is
> > that there has been quite some discussion on the binutils list over the
> > use of the EI_OSABI field.  The conclusion being that it isn't really
> > correct to use this field to discern the intendend execution platform.
> > It's purpose is really to tell ELF tools that a file contains fields and
> > values that need to be interpreted in a non-standard way.  Since both
> > elf32-hppa and elf64-hppa follow the standards, I'm inclined to think that
> > the gnu tools should set EI_OSABI to zero for both HPUX and Linux targets.
> 
> I don't read the binutils mailing list, so I checked the archive.  In my
> opinion I didn't see a discussion, I saw H.J.  Lu repeatedly asserting
> this "fact".  He may or may not be correct about original intention, but
> the implementation so far has been that EI_OSABI is used to tell what the
> target platform is.  That is what FreeBSD is doing, that is what HP-UX is
> doing, and that is what the IA-64 Unix System V Application Binary
> Interface specifies:
> 
>   http://developer.intel.com/design/IA-64/Downloads/24537002.pdf
> 
> Note that the second paragraph in section 1.1 of that specification
> includes the following:
> 
>     This document is the result of consensus among operating system
>     vendors intending to provide UNIX and UNIX workalike operating
>     systems on the IA-64 architecture. The vendors participating in
>     this effort include Intel, Sun Microsystems, SCO, IBM, SGI,
>     Cygnus Solutions, VA Linux Systems, HP, and Compaq.
> 
> So, If the specification is wrong according to H.J. Lu, why did both
> Cygnus and VA Linux Systems not object to this:
> 
>     Section 4.1.1.4 Operating System Identification
> 
>     The e_ident[EI_OSABI] value identifies the operating system and
>     ABI to which the object is targeted, as listed in Table 4-1.
> 
> Table 4-1 lists the various ELFOSABI_* fields, e.g. ELFOSABI_HPUX,
> ELFOSABI_NETBSD, ELFOSABI_LINUX, etc.
> 
> Note also, that the current mechanism for us to be able to differentiate
> elf executables in the Linux kernel is the machine dependent
> elf_check_arch() macro, whose only argument is a pointer to a
> elf32_hdr or elf64_hdr. I think it would be ugly to try to get the
> .note.ABI-tag section first for every exec of a new binary in order
> to determine what the target ABI is.
> 
> In my opinion, unless H.J. Lu can get the IA-64 ABI changed, it is too
> late to assert his view of what that field was supposed to be. Please
> leave the EI_OSABI field set to ELFOSABI_LINUX until a better consensus
> on this issue is reached.
> 
> John Marvin
> jsm@fc.hp.com

I'm happy enough to leave things as they are in puffin CVS, but these
changes haven't been merged back to sourceware yet, partly because I had
some doubts myself as to whether setting EI_OSABI was correct.  H.J. Lu
wasn't the only one arguing that EI_OSABI should be left at zero;  Ulrich
Drepper also was quite vehement against changing sourceware FreeBSD
binutils.

BTW, it's not too hard to check .note.ABI-tag.  The linker arranges for a
PT_NOTE program header entry to point to it, and the section itself is
virtually guaranteed to be read in with the header as it's placed right
after the header along with .interp.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Alan Modra <alan@linuxcare.com.au> writes:

> Ulrich Drepper also was quite vehement against changing sourceware
> FreeBSD binutils.

I've never said anything about any *BSD, why should I?  The *BSD
people wanted to change the Linux binutils.

Anyway, the ABI value is zero unless you implement ELF extensions.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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On 21 Nov 2000, Ulrich Drepper wrote:

> Alan Modra <alan@linuxcare.com.au> writes:
> 
> > Ulrich Drepper also was quite vehement against changing sourceware
> > FreeBSD binutils.
> 
> I've never said anything about any *BSD, why should I?  The *BSD
> people wanted to change the Linux binutils.

Sorry, I stated that badly.

> Anyway, the ABI value is zero unless you implement ELF extensions.

Exactly what is an "ELF extension"?  Anything outside gABI or
"gABI + psABI"?  Handly the latter, as it seems to me that a processor
specific ABI can specify extensions.  There's also the awkward possibility
that a psABI may specify an extension that is later incorporated into a
new revision of the gABI (eg. hpux and DT_INIT_ARRAY)  Does that mean that
if a new revision of the gABI completely incorporates all previous
extensions, that EI_OSABI should become zero?

Yes, I'm arguing that "No ELF extensions => EI_OSABI == 0" is not
necessarily true, but I'm _not_ arguing that changing x86 Linux binutils
is wise.  Historical usage is important.  If we were to change x86 Linux
binutils to set EI_OSABI, then that can only be after a considerable
period of time to allow code such as glibc to accept a new branding.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: [parisc-linux] New crosscompiler RPM set.
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I've uploaded a cross compiling binutils and egcs that now specifies our
target properly as parisc-linux.  They're built on a redhat 5.2 system.
You can upgrade or install them with:

rpm -Uvh \
ftp://puffin.external.hp.com/pub/parisc/binaries/RPMS/binutils-x-parisc-linux-2.9.1-10.i386.rpm
rpm -Uvh \
ftp://puffin.external.hp.com/pub/parisc/binaries/RPMS/egcs-x-parisc-linux-1.1.1-9.i386.rpm

I've also uploaded .tar.gz for those who'd prefer it.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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Alan Modra <alan@linuxcare.com.au> writes:

> Exactly what is an "ELF extension"?  Anything outside gABI or
> "gABI + psABI"?

Anything beyond the psABI that cannot be handled by the rules in the
gABI.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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On Wed, Nov 22, 2000 at 11:13:29AM +1100, Alan Modra wrote:
> 
> > Anyway, the ABI value is zero unless you implement ELF extensions.
> 
> Exactly what is an "ELF extension"?  Anything outside gABI or

ELF extension is something whose interpretation is not documented in
neither gABI nor psABI. HP's old ELF is a good example since it didn't
implement DT_INIT/DT_FINI, but added DT_INIT_ARRARY/DT_FINI_ARRAY. A
normal ELF tool will have a hard time to interpret those fields and
their values.


H.J.


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Subject: Re: [parisc-linux] CVS linux Vs. -test10
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On Tue, Nov 21, 2000 at 01:24:31PM -0800, Grant Grundler wrote:
> I would like a few files moved:
> 
> arch/parisc/kernel/ccio-dma.c    -> drivers/gsc/ccio-dma.c
> arch/parisc/kernel/ccio-rm-dma.c -> drivers/gsc/ccio-rm-dma.c
> arch/parisc/kernel/lba_pci.c     -> drivers/ropes/lba_pci.c
> arch/parisc/kernel/sba_iommu.c   -> drivers/ropes/sba_iommu.c
> arch/parisc/kernel/iosapic.c     -> drivers/ropes/iosapic.c

> Any reason why we couldn't do these moves *after* you submit a patch?

Better to get our house in order before we patchbomb Linus, I think.
Renames are hard enough in CVS; renames in diff -u format are a real
stinker :-)

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] case LEDs
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Grant Grundler wrote:
> Yes.
> I was already asked this weekend to dig up technical info on LED
> and soft power control. I guess this is my reminder to do that. :^)

Isn't there a PDC call (pdc_chassis?) to do this?  Or is the heartbeat
LED done by hardware?

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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> Seeing as apt was broken, I decided to download the woody version of apt =
so
> I can get a newer version and hopefully skip some steps in building the
> above packages.  gcc 2.96 and apt-0.3.19 don't get along, so I tried pick=
ing
> it up from cvs (supposed to have been fixed).  Follow the directions on
> cvs.debian.org
>=20
> $ cvs -d :pserver:anonymous@cvs.debian.org:/cvs/APT login
> (Logging in to anonymous@cvs.debian.org)
> CVS password:=20
> cvs login: authorization failed: server cvs.debian.org rejected access

Try:

cvs -d:pserver:anonymous@cvs.debian.org:/cvs/deity login
(empty password)

It should work. if not let me know and i can mail you a tarball. You
probably want to get the aliencode branch, which has hppa patches. Let
me know if you run into any problems.

> rsync -- ldd crashes on dpkg-shlibdepends stage
> Can I just manually put the required dependancies in?

Yes, or pick up the dpkg-architecture and dpkg-shlibdeps scripts from
http://puffin.external.hp.com/~tausq/, or wait for the next version of
dpkg to get built for hppa (it doesn't use ldd anymore)

> autoconf -- installinfo spins
>=20
> When installing the autoconf package (to compile dpkg) installinfo spins.
> And after several minutes still doesn't return.  It's taking up 100% cpu
> at the time.

hmmm.. didn't see this. I had built a slightly older version of dpkg
successfully.

randolph (tausq@debian.org)
--=20
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^

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On Wed, Nov 22, 2000 at 02:03:07PM +1100, Alan Modra wrote:
> On Tue, 21 Nov 2000, H . J . Lu wrote:
> 
> > On Wed, Nov 22, 2000 at 11:13:29AM +1100, Alan Modra wrote:
> > > 
> > > > Anyway, the ABI value is zero unless you implement ELF extensions.
> > > 
> > > Exactly what is an "ELF extension"?  Anything outside gABI or
> > 
> > ELF extension is something whose interpretation is not documented in
> > neither gABI nor psABI. HP's old ELF is a good example since it didn't
> > implement DT_INIT/DT_FINI, but added DT_INIT_ARRARY/DT_FINI_ARRAY. A
> > normal ELF tool will have a hard time to interpret those fields and
> > their values.
> 
> Neither you nor Ulrich have responded to John's point that the IA64 psABI
> states
>   "The e_ident[EI_OSABI] value identifies the operating system and ABI to
>    which the object is targeted"
> 
> Granted, this is only in a processor specific ABI, but it does flatly
> contradict your assertions that the purpose of EI_OSABI is to flag the
> presense of ELF extensions.
> 

When I was at the IA64 ABI meeting yesterday, we were looking at the
EI_OSABI issue. Everyone at the IA64 ABI meeting agreed that what
Ulrich and I had said was the correct understanding.

"The e_ident[EI_OSABI] value identifies the operating system and ABI
to which the object is targeted" just means if the e_ident[EI_OSABI]
value is not ELFOSABI_NONE, you have to look somewhere else in addition
to gABI and IA64 psABI to interpret the ELF fields/values specific to
that OS. Otherwise, gABI and IA64 psABI are sufficient.

-- 
H.J. Lu (hjl@valinux.com)


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From: Ulrich Drepper <drepper@redhat.com>
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Alan Modra <alan@linuxcare.com.au> writes:

>   "The e_ident[EI_OSABI] value identifies the operating system and ABI to
>    which the object is targeted"
> 
> Granted, this is only in a processor specific ABI, but it does flatly
> contradict your assertions that the purpose of EI_OSABI is to flag the
> presense of ELF extensions.

The meaning of the field changed over time.  Or better said, some
people initially understood it differently.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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On Tue, 21 Nov 2000, H . J . Lu wrote:

> On Wed, Nov 22, 2000 at 11:13:29AM +1100, Alan Modra wrote:
> > 
> > > Anyway, the ABI value is zero unless you implement ELF extensions.
> > 
> > Exactly what is an "ELF extension"?  Anything outside gABI or
> 
> ELF extension is something whose interpretation is not documented in
> neither gABI nor psABI. HP's old ELF is a good example since it didn't
> implement DT_INIT/DT_FINI, but added DT_INIT_ARRARY/DT_FINI_ARRAY. A
> normal ELF tool will have a hard time to interpret those fields and
> their values.

Neither you nor Ulrich have responded to John's point that the IA64 psABI
states
  "The e_ident[EI_OSABI] value identifies the operating system and ABI to
   which the object is targeted"

Granted, this is only in a processor specific ABI, but it does flatly
contradict your assertions that the purpose of EI_OSABI is to flag the
presense of ELF extensions.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.




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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] CVS linux Vs. -test10
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Grant Grundler wrote:

> Matthew Wilcox wrote:
> ...
> > Someone (probably me) sends him a patch.  He told me at the Toronto
> > show that he was quite happy to apply anything that only touched those
> > two directories. (oh, and drivers/gsc wouldn't be a problem either).
> > Can I just check that no-one wants to rename drivers/gsc again?  :-)
>
> Hi Mathew,
> I don't and it's a good question.
> I would like a few files moved:
>
> arch/parisc/kernel/ccio-dma.c    -> drivers/gsc/ccio-dma.c
> arch/parisc/kernel/ccio-rm-dma.c -> drivers/gsc/ccio-rm-dma.c

Grant,

Do you really want to merget the ccio-rm-dma.c file into Linus's tree?
It is just a reference file used to construct the real ccio-dma.c file ... I
don't believe it is referenced anywhere.

I'll double check this in the morning.

- Ryan


>     ccio will *always* be associated with a GSC bus since that's
>     the secondary bus. And ccio supports devices below dino.c which
>     already lives in drivers/gsc.
>
> arch/parisc/kernel/lba_pci.c     -> drivers/ropes/lba_pci.c
> arch/parisc/kernel/sba_iommu.c   -> drivers/ropes/sba_iommu.c
> arch/parisc/kernel/iosapic.c     -> drivers/ropes/iosapic.c
>
>     lba/sba code is equivalent to dino/ccio code for another set
>     of platforms. And long term, I'm certain iosapic.c does not
>     belong under arch/parisc. I can do this move if there are no
>     major objections.
>
> Any reason why we couldn't do these moves *after* you submit a patch?
>
> FWIW, here are issues I see with merging IA64 iosapic code with mine:
> o iosapic "discovery" (I invented register_iosapic() interface for parisc)
> o parisc PDC calls (initialization)
> o interrupt policy decisions (eg EOI generation and picking a CPU)
> o I don't have time to do it in the near future.
>
> Folks working on IA64 stuff inside HP need to think about:
> (a) if they want to do the merge any time soon
> (b) which iosapic.c they want to start with
> (c) where the final version should live
>
> thanks,
> grant
>
> Grant Grundler
> Unix Systems Enablement Lab
> +1.408.447.7253
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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> Better to get our house in order before we patchbomb Linus, I think.
> Renames are hard enough in CVS; renames in diff -u format are a real
> stinker :-)

In that case, we need to do some cleanup first.  I've been lobbying for
the removal of the almost empty arch/parisc/real directory, and its few
remaining valid files moved to the kernel directory.  There are also a
fair number of dead files.  Every file that is not currently involved in
the build should be removed, unless a good case for it remaining can be
made.  If the reason to keep it is not a long term reason, then that file
should not be sent to Linus (It sounds like it is a lot easier to add
files rather than remove/rename them).

If there are any files that are currently in use, but which we know
will eventually be removed, perhaps we should consider what to do with
that file (although I don't know of any files in this category at the
moment).

John Marvin
jsm@fc.hp.com


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When I build the current kernel in CVS, it gets remarkably far, then dies
on:

parisc-linux-ld -m hppaelf -e stext arch/parisc/kernel/head.o
arch/parisc/kernel/init_task.o init/main.o init/version.o \
        --start-group \
        arch/parisc/kernel/kernel.o arch/parisc/mm/mm.o kernel/kernel.o
mm/mm.o fs/fs.o ipc/ipc.o \
        fs/filesystems.a \
        net/network.a \
        drivers/block/block.a drivers/char/char.a drivers/misc/misc.a
drivers/net/net.a drivers/video/video.a \
        /usr/src/parisc/work/linux/arch/parisc/lib/lib.a
/usr/src/parisc/work/linux/lib/lib.a
/usr/src/parisc/work/linux/arch/parisc/lib/lib.a \
        --end-group \
        -o vmlinux
make: *** [vmlinux] Aborted (core dumped)
make: *** Deleting file `vmlinux'

That's remarkably gross, since it indicates that there's a problem with
the linker.  I'm not quite sure what it is, but the problem seems to come
up when it's processing lib/libc.a.

I think that's a good thing for someone to look into.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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Ryan Bradetich wrote:
> Do you really want to merget the ccio-rm-dma.c file into Linus's tree?
> It is just a reference file used to construct the real ccio-dma.c file ... I
> don't believe it is referenced anywhere.

Hi Ryan,
Yes I do. It is supposed to work for ccio+PCX-W platforms (eg C360).
Keeping it arround will document the pro/con's of that approach and
give folks who have time (and the right machine) something to experiment
with instead of writing it from scratch.  If someone finds an application
it's good for (short transactions with low latency requirements perhaps),
it's worth having around.

It's not referenced because I didn't add a CONFIG_CCIO_RM_IOMMU flag
or ccio_rm_init() call to drivers/gsc/gsc.c:gsc_init().  You are welcome
add this CONFIG flag by hacking arch/parisc/config.in and defconfig.
If you do, please add rules which only allow one or the other
CONFIG_CCIO* option to be enabled.

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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I think that the heartbeat LED is software because it starts with the kernel
boot and if the kernel stops the LED stops
blinking too. Is better to implement a software monitoring tool because you
have to watch the software for hanging.

Alex

PS. There is a function in the kernel source in
linux/arch/parisc/kernel/process.c named machine_heartbeat(). Any connection
with the heartbeat from the chassis?


----- Original Message -----
From: "Alex deVries" <adevries@linuxcare.com>
To: "Grant Grundler" <grundler@cup.hp.com>
Cc: "Alexandru Pirvulescu" <Pirvulescu_Alexandru@telemobil.ro>;
<parisc-linux@puffin.external.hp.com>
Sent: Wednesday, November 22, 2000 4:27 AM
Subject: Re: [parisc-linux] case LEDs


> Grant Grundler wrote:
> > Yes.
> > I was already asked this weekend to dig up technical info on LED
> > and soft power control. I guess this is my reminder to do that. :^)
>
> Isn't there a PDC call (pdc_chassis?) to do this?  Or is the heartbeat
> LED done by hardware?
>
> - Alex
>
> --
> Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
> 613.562.2759 tel
> alex@linuxcare.com, http://www.linuxcare.com/
> Linuxcare, Support for the revolution.
>
>


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Alex deVries wrote:
> Grant Grundler wrote:
> > Yes.
> > I was already asked this weekend to dig up technical info on LED
> > and soft power control. I guess this is my reminder to do that. :^)
>
> Isn't there a PDC call (pdc_chassis?) to do this?  Or is the heartbeat
> LED done by hardware?
>
> - Alex

A couple of months ago, I asked the same question, got answer to look in the
mkLinux sources. I did, and I think it was a register (outb(0xblabla);).

Wrote a driver (and for WAX, got a Intel Flash 32 EISA running), can't
release it now, because of some copyright issues...

Bas


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John Marvin wrote:
> In that case, we need to do some cleanup first.

John,
I want a task list which leads us to a submital to linus.
That's why I listed the specific files I wanted moved.

Can you come up with (or ask someone else to come up) with a list of
files which meet your criteria?

All of your criteria sounds reasonable to me.
But I don't have a feel of which files meet your criteria.
If someone makes the task list, I'm happy to help with items
and verify the result works.

thanks,
grant


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> Ryan Bradetich wrote:
> > Do you really want to merget the ccio-rm-dma.c file into Linus's tree?
> > It is just a reference file used to construct the real ccio-dma.c file ... I
> > don't believe it is referenced anywhere.
>
> Hi Ryan,
> Yes I do. It is supposed to work for ccio+PCX-W platforms (eg C360).
> Keeping it arround will document the pro/con's of that approach and
> give folks who have time (and the right machine) something to experiment
> with instead of writing it from scratch.  If someone finds an application
> it's good for (short transactions with low latency requirements perhaps),
> it's worth having around.
>
> It's not referenced because I didn't add a CONFIG_CCIO_RM_IOMMU flag
> or ccio_rm_init() call to drivers/gsc/gsc.c:gsc_init().  You are welcome
> add this CONFIG flag by hacking arch/parisc/config.in and defconfig.
> If you do, please add rules which only allow one or the other
> CONFIG_CCIO* option to be enabled.
>
Well, personally i'd vote to get rid of it. It works for ONE machine only,
and MAY have an advantage in some small case. But if we keep it, lets make
sure that it is real clear that it should NOT be the default choice.

It should be marked CONFIG_EXPERIMENTAL, and the text associated with it
should clearly show that it works on a C360 only. If possible, it should
also be made clear that ccio-dma.c works for C360, so people who have
C360's don't think they have to choose ccio-rm-dma.c.

Grant, I hope you are prepared to answer the parisc-linux mailing list
questions this is going to generate once parisc-linux starts becoming more
visible.  Another FAQ entry perhaps? :-)

John Marvin
jsm@fc.hp.com


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>
> BTW, it's not too hard to check .note.ABI-tag.  The linker arranges for a
> PT_NOTE program header entry to point to it, and the section itself is
> virtually guaranteed to be read in with the header as it's placed right
> after the header along with .interp.

I didn't say it was difficult, I said it was ugly. It means another
parisc only change to the machine independent file fs/binfmt_elf.c,
since the hook provided will not allow this check. Without a change,
binfmt_elf.c won't be smart enough to differentiate a binary produced
by Gnu binutils for HP-UX and a binary produced by Gnu binutils for
Linux, so it will claim both, and then blow up later, rather than
not claiming the HP-UX binary and allowing it to be claimed by
an arch dependent binary handler further down the list.

And binfmt_elf.c does NOT read the program headers in the same read, so
another read would have to be done (the data should be found in in cache
rather than going to disk for it). Since we now need both the program
headers and a section header to determine whether or not we should claim
the file AND binfmt_elf.c also wants to look at those headers after
the file is claimed, a small redesign is probably in order (rather than
re-reading the headers). I'm not sure whether or not Linus would buy
that.

So, I guess I'll pursue the interpreter field instead, since that is
what sparc is doing (i.e. they have their own sparc only code in
binfmt_elf.c). Since that will be an easier sell. I need to do more
research here. I suspect that statically linked binaries are not going
to allow this solution to work though.

John Marvin
jsm@fc.hp.com


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: [parisc-linux] binutils update
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I've just committed a change to binutils that cures an ELF spec violation.
We now no longer create plabels for DT_INIT and DT_FINI and instead rely
on the dynamic linker to create them for us.  This means you need an
updated glibc, that I committed a little earlier today, to create the
plabel function pointers if you update your binutils.

You have been warned...

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Crash dump module
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	Hi
Good news, I've finished to recompile the entire chain on hpux 11.00 64bits.
I've recompile my own kernel and booted a small 712/60. It work pretty well.
Now I'm going to start the work about crash dump. So, In my mind, I'll start
from the linux/kernel/panic.c function and I'll add a function dumpsys.c
in the linux/arch/paric directory -> is it okay for you ?
It will depend on the CONFIG_PARISC var (or do you prefer adding a CONFIG_DUMPSYS var ?)

	thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com


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> It will depend on the CONFIG_PARISC var (or do you prefer adding a CONFIG_DUMPSYS var ?)

I think there was a consensus to use __hppa__ instead of CONFIG_PARISC
...

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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Hello Everyone,

I download the cross-compilers and  build a lifimage on Redhat 6.1.  I set
up nfsroot on a S712 running hpux 10.20.  With this I am able to boot a
B132L running pdc 6.1 - 
almost.  I get a hang right after -

VFS: Mounted root (nfs filesystem) readonly
Warning: unable to open an initial console


I have a 700/96 on serial port 1 as the console.  I have hpux on a disc in
the unit I'm trying to boot - from HPUX I have verified I can nfs mount the
filesys I'm using for NFSROOT.

With linux in this condition the machine will respond to ping.  I will also
react to a telnet - i get the telnet banner then "connection closed by
foreign host".  FTP gets "connection 
refused" - so it' partially alive.....

Is there a way to keyword search the developers archive?  I vaguely recall
seeing the 'initial console' warning, but couldn't find it browsing the
developers archive


Thanks,

Mike

**********************************************
Mike Clapper                                  
North American Crisis Management Team        
Hewlett Packard                       

(405) 948-4715
**********************************************


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Alex deVries wrote:
> make: *** [vmlinux] Aborted (core dumped)
> make: *** Deleting file `vmlinux'
> 
> That's remarkably gross, since it indicates that there's a problem with
> the linker.  I'm not quite sure what it is, but the problem seems to come
> up when it's processing lib/libc.a.
> 
> I think that's a good thing for someone to look into.

IIRC, Nat says it's a matter of popping into gdb, spotting the crash
location, fixing the obvious double-free and recompiling.

Mike

-- 
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= I've been lobbying for
= the removal of the almost empty arch/parisc/real directory, and its few
= remaining valid files moved to the kernel directory.

Done.

		    arch/parisc/real
			R.I.P.


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Bruno Vidal wrote:
> 	Hi
> Good news, I've finished to recompile the entire chain on hpux 11.00 64bits.
> I've recompile my own kernel and booted a small 712/60. It work pretty well.
> Now I'm going to start the work about crash dump. So, In my mind, I'll start
> from the linux/kernel/panic.c function and I'll add a function dumpsys.c
> in the linux/arch/paric directory -> is it okay for you ?

YES!

> It will depend on the CONFIG_PARISC var
> (or do you prefer adding a CONFIG_DUMPSYS var ?)

As Randolph pointed out CONFIG_PARISC is deprecated.
Use "ifdef __hppa__" for changes in *common* (ie not arch/parisc)
files. They should not be needed for anything in arch/parisc
or linux/include/asm-parisc.

Adding a CONFIG_DUMPSYS is a good idea.
Look in linux/arch/parisc/config.in, linux/arch/parisc/defconfig, 
and the various Makefiles for how CONFIG_* flags work.

thanks Bruno!
grant

Grant Grundler
Unix Systems Enablement Lab
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"CLAPPER,MIKE (HP-USA,ex1)" wrote:
> 
> 
> Hello Everyone,
> 
> I download the cross-compilers and  build a lifimage on Redhat 6.1.  I set
> up nfsroot on a S712 running hpux 10.20.  With this I am able to boot a
> B132L running pdc 6.1 - 
> almost.  I get a hang right after -
> 
> VFS: Mounted root (nfs filesystem) readonly
> Warning: unable to open an initial console

I think I need more output. Based on ioscan output, the B132L
has two serial ports:
8/16/4 - off of LASI
8/20/2 - of WAX (EISA Bus Adapter)

(GSCtoPCI is at 8/0)

I don't think the one off of WAX is supported right now.

Are you using the default .config produced by "make oldconfig"?

It's also possible the LASI support is broken on B132L and I would
expect some console output indicating what's wrong.

> I have a 700/96 on serial port 1 as the console.  I have hpux on a disc in
> the unit I'm trying to boot - from HPUX I have verified I can nfs mount the
> filesys I'm using for NFSROOT.

NFS root mounted fine. Console is the problem.

...
> Is there a way to keyword search the developers archive?  I vaguely recall
> seeing the 'initial console' warning, but couldn't find it browsing the
> developers archive

Yes - http://puffin.external.hp.com/cgi-bin/mailgrep

grant

Grant Grundler
Unix Systems Enablement Lab
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From: Cary Coutant <cary@cup.hp.com>
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Subject: Re: [parisc-linux] Use of the EI_OSABI field
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As the original author of the proposal to add the EI_OSABI field to the 
ELF format, let me try to clarify the intent of this field. The 
authoritative definition of this field is found in SCO's gABI document, 
which is still the official specification for the ELF format (this is 
probably posted somewhere on SCO's web site). Here's what it says:

    Byte e_ident[EI_OSABI] identifies the operating system and
    ABI to which the object is targeted. Some fields in other ELF
    structures have flags and values that have operating system
    and/or ABI specific meanings; the interpretation of those
    fields is determined by the value of this byte. The value of
    this byte must be interpreted differently for each machine.
    That is, each value for the e_machine field determines a set
    of values for the EI_OSABI byte. Values are assigned by the
    ABI processor supplement for each machine. If the processor
    supplement does not specify a set of values, the value 0
    shall be used and indicates unspecified.

The first sentence is still a bit misleading, and is an artifact of the 
original proposal. Originally, the field was intended to identify the 
target ABI (hence the name of the field). As we started discussing a 
common Unix ABI for IA-64, however, it became clear that this field 
wouldn't serve that purpose, but it was still needed to identify the set 
of platform-specific ELF extensions that are used by the object file.

There are a number of fields in the ELF format for which ranges of values 
or a set of flag bits are reserved for vendor-specific use (e.g., 
SHT_LOOS through SHT_HIOS for vendor-specific section types, and 
SHF_MASKOS for vendor-specific section attributes). If an object file 
uses any of these values or flag bits, the consumer of the file must 
consult the EI_OSABI field to determine what those values or flags mean. 
It works just like the e_machine field does for attaching meaning to 
processor-specific values and flags.

The intent is that any ABI-conforming implementation will be able to 
execute an ABI-conforming binary, even if it uses certain vendor-specific 
features. In many cases, those vendor-specific features are hints for a 
particular OS that can be ignored by other implementations. Where this is 
not the case, and a vendor-specific feature must be understood by the 
system in order to process the file correctly, we have a couple of 
alternatives.

For section types and flags that a linker must understand, we have the 
SHF_OS_NONCONFORMING flag -- if set, and a linker doesn't understand a 
particular section type or flag, it must reject the file.

For executables that will execute only on a particular implementation, we 
must use an alternate interpreter (PT_INTERP) or bind to 
implementation-specific shared libraries. An ABI-conforming binary will 
use the interpreter specified in the psABI spec, and will use only system 
libraries specified there.

For statically-bound programs, I'm afraid we don't have a clear solution. 
We took the general approach that such programs are not ABI-conforming in 
the first place, and can use any mechanism they might choose to verify 
that they are executing on the appropriate implementation.

-cary


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Xref: news.gmane.org gmane.linux.ports.parisc:8589

John Marvin wrote:
> Grant Grundler wrote:
> > Yes I do. It is supposed to work for ccio+PCX-W platforms (eg C360).
...
> Well, personally i'd vote to get rid of it. It works for ONE machine only,
> and MAY have an advantage in some small case.

And so does the OB600 mouse driver I rewrote/published.
AFAIK, it only works on OB600s.

I was originally thinking D/K/R-class boxes had PCX-W upgrades but
AFAICT, they don't.

> But if we keep it, lets make
> sure that it is real clear that it should NOT be the default choice.
> 
> It should be marked CONFIG_EXPERIMENTAL, and the text associated with it
> should clearly show that it works on a C360 only. If possible, it should
> also be made clear that ccio-dma.c works for C360, so people who have
> C360's don't think they have to choose ccio-rm-dma.c.

IIRC, Comments in the headers of both ccio files make those issues clear.
I'm not sure where else that needs to be documented.

> Grant, I hope you are prepared to answer the parisc-linux mailing list
> questions this is going to generate once parisc-linux starts becoming more
> visible.  Another FAQ entry perhaps? :-)

Ryan owns it. He's responsible for documenting it and adding FAQ questions.
He can choose to delete ccio-rm-dma.c as well.
:^)

I think it'd be a waste to throw it away before someone figures
out that it's really not useful - even if just for C360.

thanks,
grant


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Thanks Grant,

I verified the console is off 8/16/4.0 and that it is the LASI port.  I also
downloaded the newest cross-compiler and source code.  After rebuilding the
palo lifimage I get the same hang in the same place.  Since I was cabled to
a dumb terminal I was not able to capture the boot output.  I will find the
right cable to hook up to my pc so I can capture the output and send it to
you - perhaps an error occurred earlier in the boot that I overlooked.

Thanks for the help.

Mike


-----Original Message-----
From: Grant Grundler [mailto:grundler@cup.hp.com]
Sent: Wednesday, November 22, 2000 11:27 AM
To: CLAPPER,MIKE (HP-USA,ex1)
Cc: 'parisc-linux@thepuffingroup.com'
Subject: Re: [parisc-linux] B132L boot hang 


"CLAPPER,MIKE (HP-USA,ex1)" wrote:
> 
> 
> Hello Everyone,
> 
> I download the cross-compilers and  build a lifimage on Redhat 6.1.  I set
> up nfsroot on a S712 running hpux 10.20.  With this I am able to boot a
> B132L running pdc 6.1 - 
> almost.  I get a hang right after -
> 
> VFS: Mounted root (nfs filesystem) readonly
> Warning: unable to open an initial console

I think I need more output. Based on ioscan output, the B132L
has two serial ports:
8/16/4 - off of LASI
8/20/2 - of WAX (EISA Bus Adapter)

(GSCtoPCI is at 8/0)

I don't think the one off of WAX is supported right now.

Are you using the default .config produced by "make oldconfig"?

It's also possible the LASI support is broken on B132L and I would
expect some console output indicating what's wrong.

> I have a 700/96 on serial port 1 as the console.  I have hpux on a disc in
> the unit I'm trying to boot - from HPUX I have verified I can nfs mount
the
> filesys I'm using for NFSROOT.

NFS root mounted fine. Console is the problem.

...
> Is there a way to keyword search the developers archive?  I vaguely recall
> seeing the 'initial console' warning, but couldn't find it browsing the
> developers archive

Yes - http://puffin.external.hp.com/cgi-bin/mailgrep

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253

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Grant Grundler wrote:

| I was originally thinking D/K/R-class boxes had PCX-W upgrades but
| AFAICT, they don't.
| 

The C-class upgrade to PCX-W was a one-off.  Upgrades for similar enterprise
servers were not designed. 

KMB
--
+============================================================+
|       Kirk Bresniker    	(916) 748-2393		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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Grant Grundler wrote:
...
> arch/parisc/kernel/ccio-dma.c    -> drivers/gsc/ccio-dma.c
> arch/parisc/kernel/ccio-rm-dma.c -> drivers/gsc/ccio-rm-dma.c
> 
>     ccio will *always* be associated with a GSC bus since that's
>     the secondary bus. And ccio supports devices below dino.c which
>     already lives in drivers/gsc.

Ryan - moving/keeping these files is up to you.
I was just sharing what I thought was "right".
Apologies for not making that clear earlier.


> arch/parisc/kernel/lba_pci.c     -> drivers/ropes/lba_pci.c
> arch/parisc/kernel/sba_iommu.c   -> drivers/ropes/sba_iommu.c
> arch/parisc/kernel/iosapic.c     -> drivers/ropes/iosapic.c

I've talked to one of the folks working on IA64-linux.
They are interested in merging iosapic code but haven't even
looked at the parisc version I wrote. We talked a bit about the
issues and it doesn't sound like it's going to happen anytime soon.
In any case, iosapic.c doesn't belong under "drivers/ropes".

So none of this needs to move in the forseeable future.
It can all stay in arch/parisc/kernel.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] B132L boot hang
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> I think I need more output. Based on ioscan output, the B132L
> has two serial ports:
> 8/16/4 - off of LASI
> 8/20/2 - of WAX (EISA Bus Adapter)
> 
> (GSCtoPCI is at 8/0)
> 
> I don't think the one off of WAX is supported right now.

It should be detected & supported (at least it is on my B160L).
But it is not used as initial console since it normally gets assigned as 
ttyS1 while LASI-serial gets ttyS0.

Greetings,

	Helge.


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32-bit syscalls on 64-bit kernel are to the point where a few things
work, and signals appear to be working (I didn't implement *all* the
signal-related syscalls yet).  I'll be continuing to produce syscall
wrappers for a while...

If you try to boot the standard NFS root with wide kernel, you'll want to
	mv sbin/init sbin/init-real
then compile and install this program as sbin/init:
	int main()
	{
	    char *argv[2];

	    argv[0] = "/sbin/init-real";
	    argv[1] = 0;
	    execv(argv[0], argv);
	}

I never felt comfortable I found the point where sys_execve figures out it
needs to pack the argv vector differently for narrow user apps (locally I
also am using PER_LINUX32 in binfmt_elf32.c) which causes the initial
exec(/sbin/init) to be passed incomprehensible arguments.  This program
is a little temporary workaround.


	-Paul Bame


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> That's remarkably gross, since it indicates that there's a problem with
> the linker.  I'm not quite sure what it is, but the problem seems to come

I think I have fixed it in CVS. Please all retry 8)

> I think that's a good thing for someone to look into.

Still, someone could look into whether what I have done was right, so the
comments in the code seem to imply very strongly to me it is.

binutils/ld/emultempl/hppaelf.em is now version 1.2, was version 1.1.

	Philipp


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On Wed, 22 Nov 2000, Matt Taggart wrote:

> Hi Alan,
> 
> First a timezone question... your mail headers have you in +11 and Ft. Collins 
> is -7 so you're 6 hours behind + 1 day relative to us? So as I send this it's 
> 14:05 here and 8:05 there?

Hi Matt,
  I'm actually on +10:30 in Adelaide, but posting from a Linuxcare machine
in Canberra which is on +11.

>[snip segfaults]
> I am building native using dhd's binutils/gcc/glibc debs, using source checked 
> out just after the glibc 2.2 merge. Do you think the merge / ld.so changes you 
> just made would help this problem at all?

Quite likely.  This fix

	* sysdeps/hppa/dl-machine.h (ELF_MACHINE_START_ADDRESS): Define.

is fairly crucial, as without it %dp will not be set correctly.  I should
have mentioned this when posting to the list about the binutils change.
Oh, and as of this email, I haven't actually run anything linked to the
new glibc.  A little remiss, I know, but I've been deep in the gdb port,
and if I spend time tinkering with glibc, binutils and gcc (which I like),
gdb (which I don't like) will never be finished. ;-)

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] new SBA IOMMU version committed
Date: Wed, 22 Nov 2000 18:24:52 -0800 (PST)
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Hi all,
I've committed my "second generation" I/O MMU code for
C3K/J5k boxes. It's only tested for 32-bit.
I'll be testing 64-bit shortly.

This code makes "perfect" use of the I/O pdir resource map
and we shouldn't see any panics due to out_of_resource.

grant


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Subject: [parisc-linux] CONFIG_DMB_TRAP diff
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Hello again (last one until Monday - I promise),

With Lamont's wisdom, I implemented support for Date Memory Break trap.

This enables the kernel programmer to capture the evil code which
stomps on other people's "private" data. Only works for stores
through virtual addresses. gsc_writeX() and DMA will still
bypass this mechanism.

pb, dhd, (or some equivalent deity), could you review/commit this code?
Or tell me it's ok to commit?

I've touched:
	arch/parisc/config.in
	arch/parisc/kernel/entry.S
	arch/parisc/mm/kmap.c
	include/asm-parisc/pgtable.h

thanks,
grant


Index: arch/parisc/config.in
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/config.in,v
retrieving revision 1.25
diff -u -p -r1.25 config.in
--- config.in	2000/10/20 18:28:26	1.25
+++ config.in	2000/11/23 02:18:23
@@ -16,8 +16,12 @@ endmenu
 mainmenu_option next_comment
 comment 'General options'
 
-# bool 'Symmetric multi-processing support' CONFIG_SMP
-define_bool CONFIG_SMP n
+bool 'Symmetric multi-processing support' CONFIG_SMP
+# define_bool CONFIG_SMP n
+
+# One needs to tweak dmb_trap_11 code in entry.S to match.
+# Not tested for 64-bit kernel.
+bool 'Debug support for Data Memory Break Trap' CONFIG_DMB_TRAP
 
 bool 'Kernel Debugger support' CONFIG_KWDB
 # define_bool CONFIG_KWDB n
Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/entry.S,v
retrieving revision 1.53
diff -u -p -r1.53 entry.S
--- entry.S	2000/11/22 16:51:33	1.53
+++ entry.S	2000/11/23 02:18:23
@@ -23,6 +23,7 @@
  */
 
 #include <asm/offset.h>
+#include <linux/autoconf.h>
 
 /* the following is the setup i think we should follow:
  * whenever the CPU is interruptible, the following has to be true:
@@ -349,7 +350,39 @@
 	.endm
 #endif
 
+#ifdef CONFIG_DMB_TRAP
 	/*
+	** Data Memory Bit trap interruption handler (parisc 1.1)
+	**
+	** This is a debugging aid. Use it when you think someone else
+	** is stepping on your memory. It only catches *virtual*
+	** accesses. gsc_writeX() functions disable virtual translation
+	** (D-bit) and will happily scribble whatever physical address
+	** is passed in.
+	**
+	** Here's how to use it:
+	** 1) Call iterate_pages() from your init routine like this:
+	**	iterate_pages( my_private_mem, private_mem_size,
+	**                         set_data_memory_break, 0);
+	** 2) substitute your functions for your_function1 (or 2) in
+	**    dmb_trap_11 code below.
+	**
+	** Thanks to Lamont Jones for telling me how to do this.
+	** - ggg 1/22/2000
+	*/
+	.macro	dmb_11 code
+
+	mfctl	%isr,spc
+	b       dmb_trap_11
+	mfctl	%ior,va
+
+	.align		32
+	.endm
+#else
+#define dmb_11 def
+#endif
+
+	/*
 	 * dirty bit trap interruption handler (parisc 2.0)
 	 */
 
@@ -448,7 +481,7 @@ fault_vector_11:
 	naitlb_11	16
 	nadtlb_11	17
 	def		18
-	def		19
+	dmb_11		19
 	dbit_11		20
 	def		21
 	def		22
@@ -467,7 +500,6 @@ fault_vector_11:
 	.import		handle_interruption,code
 	.import		handle_real_interruption,code
 	.import		do_irq_mask,code
-	.import		parisc_stopkernel,code
 	.import		cpu_irq_region,data
 
 	/*
@@ -903,11 +935,15 @@ dtlb_miss_11:
 	dep		pte,8,7,prot
 
 	extru,=		pte,_PAGE_NO_CACHE_BIT,1,r0
-	depi		1,12,1,prot
+	depi		1,12,1,prot	/* U-bit */
 	extru,=         pte,_PAGE_USER_BIT,1,r0
 	depi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
 	extru,= 	pte,_PAGE_GATEWAY_BIT,1,r0
 	depi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
+#ifdef CONFIG_DMB_TRAP
+	extru,=		pte,_PAGE_DMB_BIT,1,r0
+	depi		1,4,1,prot	/* B-bit */
+#endif
 
 	/* Get rid of prot bits and convert to page addr for idtlba */
 
@@ -1300,6 +1336,30 @@ dbit_trap_11:
 
 	rfir
 	nop
+
+#ifdef CONFIG_DMB_TRAP
+	.import		your_function1,code
+	.import		your_function2,code
+
+dmb_trap_11:
+	mfctl           pcsq,t0	/* get space */
+	comb,<>,n       t0,%r0,dmb_rfi  /* not kernel - bail */
+
+	mfctl           pcoq,t0		/* get offset */
+	ldil		L%dmb_ok_function1, t1
+	dep		%r0, 31, 12, t0
+	comb,=,n        t0,t1,dmb_rfi /* it's ours - bail */
+
+	ldil		L%dmb_ok_function2, t1
+	comb,<>,n       t0,t1,intr_save /* not ours - panic */
+
+dmb_rfi:
+	mfctl           ipsw,t0		/* Set PSW X-bit - just continue */
+	depi		1,11,1,t0	/* Set X-bit */
+	mtctl           t0, ipsw
+	rfir
+	nop
+#endif
 
 dbit_trap_20:
 	mfctl           %cr25,ptp	/* Assume user space trap */
Index: arch/parisc/mm/kmap.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/mm/kmap.c,v
retrieving revision 1.3
diff -u -p -r1.3 kmap.c
--- kmap.c	2000/05/05 18:05:47	1.3
+++ kmap.c	2000/11/23 02:18:23
@@ -43,7 +43,16 @@ static void unmap_cached_pte(pte_t * pte
 }
 #endif
 
+#ifdef CONFIG_DMB_TRAP
 /* These two routines should probably check a few things... */
+void set_data_memory_break(pte_t * pte, unsigned long arg)
+{
+	pte_val(*pte) |= _PAGE_DMB;
+}
+
+#endif
+
+/* These two routines should probably check a few things... */
 static void set_uncached(pte_t * pte, unsigned long arg)
 {
 	pte_val(*pte) |= _PAGE_NO_CACHE;
@@ -106,7 +115,10 @@ static inline void iterate_pmd(pgd_t * d
 	} while (address < end);
 }
 
-static void iterate_pages(unsigned long address, unsigned long size,
+#ifndef CONFIG_DMB_TRAP
+static
+#endif
+void iterate_pages(unsigned long address, unsigned long size,
 			  pte_iterator_t op, unsigned long arg)
 {
 	pgd_t *dir;
Index: include/asm-parisc/pgtable.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/pgtable.h,v
retrieving revision 1.29
diff -u -p -r1.29 pgtable.h
--- pgtable.h	2000/11/10 21:44:44	1.29
+++ pgtable.h	2000/11/23 02:18:23
@@ -109,6 +109,10 @@ extern  void *vmalloc_start;
 #define _PAGE_USER      0x400   /* Software: User accessable page */
 #define _PAGE_USER_BIT     21   /* Needs to agree with _PAGE_USER above */
 				/* 0x800 still available */
+#ifdef CONFIG_DMB_TRAP
+#define _PAGE_DMB       0x800   /* Data Memory Break Trap */
+#define _PAGE_DMB_BIT      20   /* Data Memory Break Trap */
+#endif
 
 #ifdef __ASSEMBLY__
 #define _PGB_(x)	(1 << (63 - (x)))


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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: Re: [parisc-linux] CONFIG_DMB_TRAP diff
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>
> Hello again (last one until Monday - I promise),
>
> With Lamont's wisdom, I implemented support for Date Memory Break trap.
>
> This enables the kernel programmer to capture the evil code which
> stomps on other people's "private" data. Only works for stores
> through virtual addresses. gsc_writeX() and DMA will still
> bypass this mechanism.
>
> pb, dhd, (or some equivalent deity), could you review/commit this code?
> Or tell me it's ok to commit?
>
> I've touched:
>         arch/parisc/config.in
>         arch/parisc/kernel/entry.S
>         arch/parisc/mm/kmap.c
>         include/asm-parisc/pgtable.h
>

Please don't. This solution is way more complicated than it should be.
Here are the problems with it:

     1) As I had already mentioned in a previous discussion, the
     pte's already reserve the location for the B bit (data memory
     break trap) and the dtlb miss handlers already move the entire
     group of bits that include this bit in one operation. So no
     change is necessary to the dtlb miss handlers to specially
     set that bit and incur extra instructions in the tlb miss handlers,
     and no extra bits need to be allocated in the pte. Instead of
     adding a new definition (e.g. 0x800, which is our last available bit)
     use the one that is already reserved for it: 0x010.

     2) There is no reason to add a special data memory break trap
     handler. The general trap handler is more than sufficient for
     this case. handle_interruption will be called if a data memory
     break trap is encountered. Just add a new case for the list
     of traps, and handle the trap in C. You can set the X bit by
     simply setting it in the saved ipsw (in gr[0]) and it will be
     set upon return from the trap, no muss, no fuss.


Note that the above also applies for the page reference trap.  The T bit
is also already supported (0x040 in the pte) by the dtlb miss handlers.
Note that the reason I reserved these bits is because it would actually
take MORE code in the dtlb miss handlers to NOT support those bits and use
them for something else.

Another helpful hint for those wanting to use this feature.  If you are
tracking corruptions that span multiple pages, then just setting the B bit
on each page may be all you need.  But, when I've used the data memory
break trap for corruption tracking, typically I've wanted to track a
corruption that was happening to a particular variable, i.e. a 4 byte
quantity, and lots of other variables were being legitimately written on
the same page, so you wind up with thousands of data memory break traps,
where only one may be the one that is corrupting the location you are
interested in.  But, all is not lost, the solution is still fairly simple.
The data memory break trap provides a valid iir, isr and ior.  So once you
get the trap, a custom data memory break handler (which can be written
with a few lines of C in handle_interruption), simply uses iir, isr and
ior to check if the access was to the specific byte or bytes you are
interested in.  I've simply used isr/ior to check for writes within the
word I was interested in.  That may be enough for most cases.  The
information you are missing from isr/ior is the size of the write
transaction.  To get this you would need to parse the instruction stored
in iir (code to determine the size of a store from the instruction in the
iir will be necessary when an unaligned fault handler is written).

John Marvin
jsm@fc.hp.com


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Alan Modra wrote:
>
> gdb will eventually want to use this trap too.
>

Cool! However, data memory break traps for user translations are a little
tougher. There are some small modifications in the machine dependent code
that I can make to make sure the B bit stays set during most VM operations
on a page. However, since the machine independent part of the VM system
doesn't know anything about this bit (nor should it), it won't be preserved
if the page is paged out (and subsequently paged back in). This could
be fixed fairly easily with some changes to the machine independent code,
but I don't think that would be appropriate.

Some potential solutions (each has its problems):

1) Just document the fact that the feature may not work on systems with
low memory. It's a parisc only feature, so perhaps we could live with that.

2) Lock the page in memory (using the mlock interface) when we set the B
bit on a page.


Just some thoughts on the subject.

John Marvin
jsm@fc.hp.com


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From: "Paul J.Y. Lahaie" <pjlahaie@linuxcare.com>
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Subject: [parisc-linux] boot-floppies dependancies
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I would like to know if anyone has built any of the following packages
that are needed for the boot-floppies.

Currently, the missing deps are:

cspsfonts
man-db
tetex-bin
recode
cslatex
libpaperg
tetex-extra
libnewt-dev
libgd1g-dev
gawk
libi18n-langtags-perl
dpkg-awk
debiandoc-sgml

I'm currently trying to get a working apt, since the one of pehc and the .iso
seem to be broken (no xfer methods).  I'll let everyone know when a working
copy will be available.

						- Paul

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From: "Dave O'Neill" <doneill@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] strace?
Date: Fri, 24 Nov 2000 17:01:00 -0500 (EST)
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So, I've heard rumours that somewhere there's a working strace for
parisc....  Can anyone point me in the right direction?

Dave
-- 
Dave O'Neill,    Senior Linux Consultant,     Linuxcare, Inc.
desk: (613) 562-9949 fax: (613) 562-9700 cell: (613) 223-0219
doneill@linuxcare.com               http://www.linuxcare.com/


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From: "David O'Brien" <obrien@FreeBSD.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Use of the EI_OSABI field
Date: Sat, 25 Nov 2000 12:22:11 -0800
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To: Ulrich Drepper <drepper@cygnus.com>
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On Tue, Nov 21, 2000 at 03:27:19PM -0800, Ulrich Drepper wrote:
> Alan Modra <alan@linuxcare.com.au> writes:
> 
> > Ulrich Drepper also was quite vehement against changing sourceware
> > FreeBSD binutils.
> 
> I've never said anything about any *BSD, why should I?  The *BSD
> people wanted to change the Linux binutils.

No (don't put words in my mouth Ulrich as you'll be wrong 99% of the
time).  I wanted the Sourceware Binutils to set the EI_OSABI to
"ELFOSABI_LINUX" when targeting Linux.
 
-- 
-- David  (obrien@FreeBSD.org)


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From: "David O'Brien" <obrien@FreeBSD.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Use of the EI_OSABI field
Date: Sat, 25 Nov 2000 12:28:40 -0800
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        parisc-linux@puffin.external.hp.com, parisc-linux@thepuffingroup.com,
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To: "H . J . Lu" <hjl@valinux.com>
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On Tue, Nov 21, 2000 at 07:11:29PM -0800, H . J . Lu wrote:
> When I was at the IA64 ABI meeting yesterday, we were looking at the
> EI_OSABI issue. Everyone at the IA64 ABI meeting agreed that what
> Ulrich and I had said was the correct understanding.
> 
> "The e_ident[EI_OSABI] value identifies the operating system and ABI
> to which the object is targeted" just means if the e_ident[EI_OSABI]


Then is this *extremely* misleading text going to be changed???
"the operating system and" needs to be deleted in the _official_
_published_ specification.

-- 
-- David  (obrien@FreeBSD.org)


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From: "David O'Brien" <obrien@FreeBSD.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Use of the EI_OSABI field
Date: Sat, 25 Nov 2000 12:31:08 -0800
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On Tue, Nov 21, 2000 at 07:18:21PM -0800, Ulrich Drepper wrote:
> Alan Modra <alan@linuxcare.com.au> writes:
> >   "The e_ident[EI_OSABI] value identifies the operating system and ABI to
> >    which the object is targeted"
> > 
> > Granted, this is only in a processor specific ABI, but it does flatly
> > contradict your assertions that the purpose of EI_OSABI is to flag the
> > presense of ELF extensions.
> 
> The meaning of the field changed over time.  Or better said, some
> people initially understood it differently.

Then lets get the _official_ wording changed.  Obviously my
interpretation wasn't unreasonable.   And the world does not need to have
you as a premadona keeper of the [unwritten] rules of the land.
 
-- 
-- David  (obrien@FreeBSD.org)


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From: Philipp Rumpf <prumpf@jcsbs.lanobis.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Linker problems
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> binutils/ld/emultempl/hppaelf.em is now version 1.2, was version 1.1.

I typoed there, use 1.4. We now die with an undefined reference to $global$.
should not be exactly hard to fix I guess but it is 5am here :)


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From: "H . J . Lu" <hjl@valinux.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Use of the EI_OSABI field
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Cc: Alan Modra <alan@linuxcare.com.au>, Ulrich Drepper <drepper@cygnus.com>,
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On Sat, Nov 25, 2000 at 12:28:40PM -0800, David O'Brien wrote:
> On Tue, Nov 21, 2000 at 07:11:29PM -0800, H . J . Lu wrote:
> > When I was at the IA64 ABI meeting yesterday, we were looking at the
> > EI_OSABI issue. Everyone at the IA64 ABI meeting agreed that what
> > Ulrich and I had said was the correct understanding.
> > 
> > "The e_ident[EI_OSABI] value identifies the operating system and ABI
> > to which the object is targeted" just means if the e_ident[EI_OSABI]
> 
> 
> Then is this *extremely* misleading text going to be changed???
> "the operating system and" needs to be deleted in the _official_
> _published_ specification.
> 

I will bring this issue up to ia64 psABI and gABI.

-- 
H.J. Lu (hjl@valinux.com)


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] RPM and hppa
Date: Sat, 25 Nov 2000 20:57:05 +0000 (GMT)
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I've uploaded my first block of RPM packages to 
ftp.linux.org.uk/pub/linux/alan/HPPA along with a tar ball of built RPM 
tools for anyone who wants to play.

In doing so I've hit a few problems with the 0.5 iso (no suprises there since
its not actually meant to work reliably)

- g++ explodes trying to build groff after allocating about 400Mb of RAM.
  Building -O0 works

- the configure script for procmail tries to find the largest argument set
  that works (by searching). It crashes the kernel in doing so 8)

- ldd is causing page faults in ld.so (kernel logged ones) and dying with
  segv. Fortunately it outputs the library list first

- The linker appears to have a problem when resolving symbols between three
  shared objects while doing a shared object link.

  [Example is rpm:

	rpmlib is linked dynamically with -ldb3 -ldb

	The linker emits messages about symbols being static and should be
	built -fPIC. If you dump the libraries they are -fPIC.

	It looks as if its resolving a symbol between two shared libraries
	and making a static resolution that then blows up when the third
	library gets involved

   ]

- The kernel shows occasional page cache corruption. This actually is quite
  possibly generic test6 bugs


On the whole the toolset is working remarkably well. I've built over 100 
source package sets so far including things like ncurses and most stuff just
builds or hits portability problems (eg gmp wants to use HP format asm, 
zlib wants to be a non PIC library for performance but the HP tools dont allow
it)

Alan



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From: Alan Modra <alan@linuxcare.com.au>
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On Sat, 25 Nov 2000, Alan Cox wrote:

> - g++ explodes trying to build groff after allocating about 400Mb of RAM.
>   Building -O0 works

Yeah, this is a known issue.  I see on the gcc list that rth and others
have been working on gcc fixes recently that should address the problem.
I don't have the time/ability to fix it myself.

> - the configure script for procmail tries to find the largest argument set
>   that works (by searching). It crashes the kernel in doing so 8)
> 
> - ldd is causing page faults in ld.so (kernel logged ones) and dying with
>   segv. Fortunately it outputs the library list first

How old are your glibc and binutils?  I made some changes late October
that should have fixed this problem.  See
http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/10-Oct/0146.html
Does "readelf -d" on your hppa-linux ld.so show you have a DT_TEXTREL tag?

> - The linker appears to have a problem when resolving symbols between three
>   shared objects while doing a shared object link.
> 
>   [Example is rpm:
> 
> 	rpmlib is linked dynamically with -ldb3 -ldb
> 
> 	The linker emits messages about symbols being static and should be
> 	built -fPIC. If you dump the libraries they are -fPIC.
> 
> 	It looks as if its resolving a symbol between two shared libraries
> 	and making a static resolution that then blows up when the third
> 	library gets involved
> 
>    ]

Could you put all the objects involved in the link up for ftp
somewhere?  I've just built rpm-2.5.6 without seeing this problem, but I'm
sure my setup is different to yours...

Regards, Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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> How old are your glibc and binutils?  I made some changes late October

>From the 0.5 cdrom

> http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/10-Oct/0146.html
> Does "readelf -d" on your hppa-linux ld.so show you have a DT_TEXTREL tag?

Nope

> Could you put all the objects involved in the link up for ftp
> somewhere?  I've just built rpm-2.5.6 without seeing this problem, but I'm
> sure my setup is different to yours...

rpm 4.0. rpm2 doesnt do that 3 way link with db and db3. I'll put them up when
I get a bit of time


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Subject: Re: [parisc-linux] RPM and hppa
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> On Sat, 25 Nov 2000, Alan Cox wrote:
> 
> > - g++ explodes trying to build groff after allocating about 400Mb of RAM.
> >   Building -O0 works
> 
> Yeah, this is a known issue.  I see on the gcc list that rth and others
> have been working on gcc fixes recently that should address the problem.
> I don't have the time/ability to fix it myself.

I think the above is a different problem.  The explosion is most likely
a problem with exception edges in the gcse pass.  Try `-fno-gcse'.  This
also appears in the tFile.cc libio test.

The pa port uses sjlj exceptions via __builtin_setjmp/longjmp.  A
nonlocal goto label is used for the target of the longjmp.  The flow
analysis assumes that an "exception" could jump to any label in the
procedure rather than just the label associated with the exception
region.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: "Carl & Delores Walthall" <cwalthall@cwalthall.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] RPM and hppa
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Does anyone know where I can find the operating system
for the HP9000 J200 Server?

Thanks Carl Walthall

----- Original Message -----
From: "Alan Modra" <alan@linuxcare.com.au>
To: "Alan Cox" <alan@lxorguk.ukuu.org.uk>
Cc: <parisc-linux@thepuffingroup.com>
Sent: Sunday, November 26, 2000 6:01 AM
Subject: Re: [parisc-linux] RPM and hppa


> On Sat, 25 Nov 2000, Alan Cox wrote:
>
> > - g++ explodes trying to build groff after allocating about 400Mb of
RAM.
> >   Building -O0 works
>
> Yeah, this is a known issue.  I see on the gcc list that rth and others
> have been working on gcc fixes recently that should address the problem.
> I don't have the time/ability to fix it myself.
>
> > - the configure script for procmail tries to find the largest argument
set
> >   that works (by searching). It crashes the kernel in doing so 8)
> >
> > - ldd is causing page faults in ld.so (kernel logged ones) and dying
with
> >   segv. Fortunately it outputs the library list first
>
> How old are your glibc and binutils?  I made some changes late October
> that should have fixed this problem.  See
>
http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/10-Oct/0146.ht
ml
> Does "readelf -d" on your hppa-linux ld.so show you have a DT_TEXTREL tag?
>
> > - The linker appears to have a problem when resolving symbols between
three
> >   shared objects while doing a shared object link.
> >
> >   [Example is rpm:
> >
> > rpmlib is linked dynamically with -ldb3 -ldb
> >
> > The linker emits messages about symbols being static and should be
> > built -fPIC. If you dump the libraries they are -fPIC.
> >
> > It looks as if its resolving a symbol between two shared libraries
> > and making a static resolution that then blows up when the third
> > library gets involved
> >
> >    ]
>
> Could you put all the objects involved in the link up for ftp
> somewhere?  I've just built rpm-2.5.6 without seeing this problem, but I'm
> sure my setup is different to yours...
>
> Regards, Alan Modra
> --
> Linuxcare.  Support for the Revolution.
>
>
> --------------------------------------------------------------------------

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Subject: Re: [parisc-linux] RPM and hppa
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Hi All

 I have a HP9000 J200 server and would like to find the operating system
software for it. Can you tell me where to look on the internet or who I may
call?
The server has a OS installed but no one can remember the user or password
information.
So they gave it to me to take home, is there a way to boot it on a floppy
and change this
information?

Thanks for any information you can give me!

Carl walthall

----- Original Message -----
From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
To: "Alan Modra" <alan@linuxcare.com.au>
Cc: <alan@lxorguk.ukuu.org.uk>; <parisc-linux@thepuffingroup.com>
Sent: Sunday, November 26, 2000 10:45 AM
Subject: Re: [parisc-linux] RPM and hppa


> > On Sat, 25 Nov 2000, Alan Cox wrote:
> >
> > > - g++ explodes trying to build groff after allocating about 400Mb of
RAM.
> > >   Building -O0 works
> >
> > Yeah, this is a known issue.  I see on the gcc list that rth and others
> > have been working on gcc fixes recently that should address the problem.
> > I don't have the time/ability to fix it myself.
>
> I think the above is a different problem.  The explosion is most likely
> a problem with exception edges in the gcse pass.  Try `-fno-gcse'.  This
> also appears in the tFile.cc libio test.
>
> The pa port uses sjlj exceptions via __builtin_setjmp/longjmp.  A
> nonlocal goto label is used for the target of the longjmp.  The flow
> analysis assumes that an "exception" could jump to any label in the
> procedure rather than just the label associated with the exception
> region.
>
> Dave
> --
> J. David Anglin                                  dave.anglin@nrc.ca
> National Research Council of Canada              (613) 990-0752 (FAX:
952-6605)
>
> --------------------------------------------------------------------------

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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Linker failure with db1
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I replaced the libdb1 on the ISO with one built using the toolchain on the ISO
and all is now happy. 


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] RPM and hppa
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"Carl & Delores Walthall" wrote:
> Hi All
> 
>  I have a HP9000 J200 server and would like to find the operating system
> software for it. Can you tell me where to look on the internet or who I may
> call?

Carl,
The short answer is a port of linux to the J200 is in progress.
See http://www.parisc-linux.org/ for status.

If you have more questions read the FAQ and check the mailing list
archives using http://puffin.external.hp.com/cgi-bin/mailgrep first please.


> The server has a OS installed but no one can remember the user or password
> information. So they gave it to me to take home, is there a way to boot
> it on a floppy and change this information?

Here's how to "fix" this:
During power up/boot press <ESC> key to get "BOOT ADMIN>" prompt.
type "bo pri isl".  At "ISL>" prompt, type "hpux -is".
HPUX should boot to single user. use "mountall" or "mount -a" to
mount all file systems. Then you can "vi /etc/passwd" or "passwd root".

If that doesn't work and you can afford to loan the box out for a
3-4 monthes, you might ask if someone could install parisc-linux
on it for you in exchange for a few monthes use.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] case LEDs
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Alex deVries wrote:
> Grant Grundler wrote:
> > I was already asked this weekend to dig up technical info on LED
> > and soft power control. I guess this is my reminder to do that. :^)

I dug up the info but it's not in a form I'm willing to publishing.
However, someone did volunteer to look at this and I've provided them
with this info. So it will make into our CVS source tree and get
published that way.


> Isn't there a PDC call (pdc_chassis?) to do this? 

Not AFAICT. PDC_CHASSIS is documented in the pdc32.pdf found on
	http://www.parisc-linux.org/documentation.html 

But my gut feeling is parisc specific code could make some PDC_CHASSIS
calls to set up "sysstat" field (eg initialize, shutdown, run states).

Does anyone know if the chassis codes used by HPUX are published?
It would be cool if parisc-linux used the same codes where possible...


> Or is the heartbeat LED done by hardware?

Code I've looked at before seems to all do it in software.


grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Philipp Rumpf <prumpf@jcsbs.lanobis.de>
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Subject: Re: [parisc-linux] Linker problems
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> I typoed there, use 1.4. We now die with an undefined reference to $global$.
> should not be exactly hard to fix I guess but it is 5am here :)

not hard at all. here we are:

prumpf@insula:~/cvs-s/parisc/linux > ls -l vmlinux 
-rwxr-xr-x   1 prumpf   users      353695 May  1 03:01 vmlinux

I'll commit the $global$ change now. someone tell me how far the boot gets,
ok ? (not that I expect much).


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From: Aleksandr Konstantinov <sanjak@tipas.lt>
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Subject: [parisc-linux] how to boot ?
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Hello, All.


  We have two HP Workstations here (Model 735). 
I would like to try linux on one of them. But I have no disk space
to install all the stuff (binutils, compiler, etc) . 
I found precompiled kernel on puffin.external.hp.com but it looks like 
I also need palo . Does anybody know, where to get precompiled palo
for hpux9, hpux10 or linux-x86 ?



Thanks in advance.

A.K.


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] strace?
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Xref: news.gmane.org gmane.linux.ports.parisc:8619

Hi Dave,
  The source is in cvs on pehc; I can supply a binary if you want
one.  I havn't made serious use of it, but it does basically work.

Richard


On Fri, Nov 24, 2000 at 05:01:00PM -0500, Dave O'Neill wrote:
> 
> So, I've heard rumours that somewhere there's a working strace for
> parisc....  Can anyone point me in the right direction?
> 
> Dave
> -- 
> Dave O'Neill,    Senior Linux Consultant,     Linuxcare, Inc.
> desk: (613) 562-9949 fax: (613) 562-9700 cell: (613) 223-0219
> doneill@linuxcare.com               http://www.linuxcare.com/
> 
> ---------------------------------------------------------------------------
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> 
> 


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> I think the above is a different problem.  The explosion is most likely
> a problem with exception edges in the gcse pass.  Try `-fno-gcse'.  This
> also appears in the tFile.cc libio test.

I've not yet had a chance to try this. I see the same behaviour building Qt
so I may try it on that


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Hi all,                                                               
                                                                      
	We have tried to compile the new linux source today and vmlinux      
always needs pci.o to link. It works if you delete pci.o from the     
objects list in the kernel Makefile. But, we don't know why it was    
needed because we did not ask for in our "make config"...             
                                                                      
We appreciate any help!                                               
                                                                      
THX,                                                                  
ESIEE Team                                                            


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] RPM and hppa
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> 
> > I think the above is a different problem.  The explosion is most likely
> > a problem with exception edges in the gcse pass.  Try `-fno-gcse'.  This
> > also appears in the tFile.cc libio test.
> 
> I've not yet had a chance to try this. I see the same behaviour building Qt
> so I may try it on that

Another option that might help if exceptions aren't needed is `-fno-exceptions'.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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marteau wrote:
> 	We have tried to compile the new linux source today and vmlinux      
> always needs pci.o to link. It works if you delete pci.o from the     
> objects list in the kernel Makefile. But, we don't know why it was    
> needed because we did not ask for in our "make config"...

Hi Thomas,
The problem is in arch/parisc/kernel/Makefile.
It doesn't use CONFIG_PCI to decide if pci.o is needed.
I'll fix that now - should be simple.

thanks,
grant


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To: alan@lxorguk.ukuu.org.uk (Alan Cox)
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In-Reply-To: <E140RZ5-0003I4-00@the-village.bc.nu> from "Alan Cox" at Nov 27, 2000 04:55:36 pm
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> > I think the above is a different problem.  The explosion is most likely
> > a problem with exception edges in the gcse pass.  Try `-fno-gcse'.  This
> > also appears in the tFile.cc libio test.
> 
> I've not yet had a chance to try this. I see the same behaviour building Qt
> so I may try it on that

If the problem is in fact the exception handling method, I think we should
look at implementing the DWARF2 unwind mechanism and exception handling using
this unwind mechanism.  The default method of handling exceptions is sjlj.
See the description of DWARF2_UNWIND_INFO and INCOMING_RETURN_ADDR_RTX in
gcc/tm.texi for more info.  Alan Modra may want this for gdb as well.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: [parisc-linux] gcc crashes/out of memory and groff
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With groff -fno-gcse does not help but -O0 does. Without -O0 you get an
internal error.

g++ -I. -I/usr/src/redhat/BUILD/groff-1.16/src/roff/troff -I/usr/src/redhat/BUILD/groff-1.16/src/include -I/usr/src/redhat/BUILD/groff-1.16/src/include -DHAVE_UNISTD_H=1 -DHAVE_DIRENT_H=1 -DHAVE_LIMITS_H=1 -DHAVE_SYS_DIR_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRINGS_H=1 -DSTDLIB_H_DECLARES_PUTENV=1 -DSTDIO_H_DECLARES_POPEN=1 -DSTDIO_H_DECLARES_PCLOSE=1 -DHAVE_SYS_NERR=1 -DHAVE_SYS_ERRLIST=1 -DHAVE_CC_LIMITS_H=1 -DRETSIGTYPE=void -DHAVE_STRUCT_EXCEPTION=1 -DHAVE_UNISTD_H=1 -DHAVE_GETPAGESIZE=1 -DHAVE_MMAP=1 -DHAVE_FMOD=1 -DHAVE_STRTOL=1 -DHAVE_GETCWD=1 -DHAVE_STRERROR=1 -DHAVE_PUTENV=1 -DHAVE_RENAME=1 -DHAVE_MKSTEMP=1 -DHAVE_STRCASECMP=1 -DHAVE_STRSEP=1 -DHAVE_STRDUP=1 -DSYS_SIGLIST_DECLARED=1  -O2 -mpa-risc-1-0 -fno-gcse  -c env.cc
env.cc: In member function `void environment::output_line (node *, hunits)':
env.cc:1582: Internal error: Segmentation fault.
   Please submit a full bug report.
   See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[2]: *** [env.o] Error 1
make[2]: Leaving directory `/usr/src/redhat/BUILD/groff-1.16/src/roff/troff'


Alan



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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: [parisc-linux] Include trouble
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Hi folks,

	Just to know if it is a local problem. We have this warning when we
cross compile the kernel:

/linux/cvs/linux/include/linux/string.h:61: warning: conflicting types
for built-in function `memset'
/linux/cvs/linux/include/linux/string.h:64: warning: conflicting types
for built-in function `memcpy'
/linux/cvs/linux/include/linux/string.h:73: warning: conflicting types
for built-in function `memcmp'

Can we have your point of view?

Bye, ESIEE Team


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Subject: [parisc-linux] Leds
Date: Tue, 28 Nov 2000 00:17:24 +0100
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Hi all,

	We tried to implement the led power of 712 hp boxes. We call leds_init
in main.c in init directory. Even though it is working, we are not sure
where to put the source that must be completed for others models.

We could make a LEDS directory in drivers
	 put the file in the kernel directory

We also put the source for the initialisation of keyboard leds in
lasi_ps2_reset but we admit that no led is on. Is it true?
How can we know?

THX, ESIEE Team


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From: Alex deVries <adevries@redhat.com>
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Subject: [parisc-linux] The kernel builds!!!
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On Sat, 1 May 1999, Philipp Rumpf wrote:
> prumpf@insula:~/cvs-s/parisc/linux > ls -l vmlinux 
> -rwxr-xr-x   1 prumpf   users      353695 May  1 03:01 vmlinux
> 

I'm pretty sure that this is the first every monolithic kernel to be build
for PA RISC.

This is a pretty significant feat, and I'd encourage you wherever you are
to stand up and clap your hands/wings to Philipp and everyone else who's
helped out. 

This is going very very well... I hope people can appreciate the
significance of this step.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team





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From: Alan Modra <alan@linuxcare.com.au>
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On Mon, 27 Nov 2000, Alan Cox wrote:

> With groff -fno-gcse does not help but -O0 does. Without -O0 you get an
> internal error.

Cross compiling from an x86-linux box with enough memory+swap (256M + 2G),
env.cc eventually compiled for me using the default -O2 optimisation
level.  I had a crash later when compiling preproc/tbl/table.cc, so that's
nothing to boast about.

table.cc: In member function `void table::build_span_list ()':
table.cc:2009: Internal error: Segmentation fault.

Worse, when I added "-Q -da" to see what was happening, the compile
succeeded - and also succeeded with either of -Q or -da alone.  So I
ran cc1plus under gdb, and that too failed to crash.  :-(
Maybe a garbage collection or uninitialised var bug?

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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On Mon, 27 Nov 2000, Thomas Marteau wrote:

> Can we have your point of view?

Your version of gcc expects the size_t parameter to all these functions to
be "unsigned int", whereas the 2000/11/18 changes to
linux/include/asm-parisc/posix_types.h made __kernel_size_t
"unsigned long".

As far as I understand, gcc's cpp has a built-in definition of size_t,
__SIZE_TYPE__, and it ultimately gets it's idea of the definition from the
kernel includes on the machine where gcc was compiled.  ie. recompile gcc
with the new kernel headers installed, and the problem should go away.

For 32-bit hppa-linux, sizeof(int) == sizeof(long) so there shouldn't be
any practical consequence other than these warning messages.  There might
be some "interesting" problems on hppa64-linux - I'm not sure.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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On Tue, 28 Nov 2000, Alan Modra wrote:

> As far as I understand, gcc's cpp has a built-in definition of size_t,
> __SIZE_TYPE__, and it ultimately gets it's idea of the definition from the
> kernel includes on the machine where gcc was compiled.  ie. recompile gcc
> with the new kernel headers installed, and the problem should go away.

No, that's wrong.  __SIZE_TYPE__ comes from `#define SIZE_TYPE' in
gcc/config/pa/pa-linux{,64}.h  I'll check in a patch to gcc in a few
moments.

Alan
-- 
Linuxcare.  Support for the Revolution.


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Hi all,

	We appreciate if someone can explain where we can find request_irq and
request_region in hp_psaux.c and also,
what are they doing?

Thanks,
ESIEE Team


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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Mouse driver for PS/2
Date: Tue, 28 Nov 2000 18:21:34 +0100
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On Tuesday 28 November 2000 16:07, Thomas Marteau wrote:
> Hi all,

Hi Thomas,

>
> 	We appreciate if someone can explain where we can find request_irq

#include <linux/sched.h> and /arch/parisc/kernel/irq.c
request_irq() binds the given interrupt-number to a function (if possible).

> and
> request_region 

#include <linux/ioport.h>
request_region only marks (and tests) an I/O-region as used by a driver and 
makes this information visible via /proc/iomem and /proc/ioports.

> in hp_psaux.c and also,
> what are they doing?
>
> Thanks,
> ESIEE Team


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From: William Ferguson <wferguson@server01.chatspace.com>
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Subject: RE: [parisc-linux] PDC firmware revision FAQ update
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This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.

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Is the web server at www.parisc-linux.org down?  Can't seem to connect from
San Diego.

-----Original Message-----
From: Grant Grundler [mailto:grundler@cup.hp.com]
Sent: Friday, November 17, 2000 1:51 PM
To: parisc-linux@puffin.external.hp.com
Subject: [parisc-linux] PDC firmware revision FAQ update


Hi folks,

The issue of PDC/firmware revs came up locally and sounded like a FAQ.
I added

    "10. How can I check if the PDC (firmware) revision is the latest?"

and what I knew/could find to our FAQ at:

	http://www.parisc-linux.org/faq.html

The new FAQ entry should be visible to the world in the next hour or so.


    **** WARNING ****
    Firmware upgrades can *kill* your machine!
    **** WARNING ****

Don't do it just because. Read the FAQ carefully. Take the
time to figure out why you might need the upgrade and expose
yourself to this risk.

grant

ps. please don't ask me why your favorite machine's PDC isn't listed.
   I don't run the referenced sites.

---------------------------------------------------------------------------
To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
`unsubscribe' as the subject.


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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Diso-8859-1">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2448.0">
<TITLE>RE: [parisc-linux] PDC firmware revision FAQ update</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>Is the web server at www.parisc-linux.org down?&nbsp; =
Can't seem to connect from San Diego.</FONT>
</P>

<P><FONT SIZE=3D2>-----Original Message-----</FONT>
<BR><FONT SIZE=3D2>From: Grant Grundler [<A =
HREF=3D"mailto:grundler@cup.hp.com">mailto:grundler@cup.hp.com</A>]</FON=
T>
<BR><FONT SIZE=3D2>Sent: Friday, November 17, 2000 1:51 PM</FONT>
<BR><FONT SIZE=3D2>To: parisc-linux@puffin.external.hp.com</FONT>
<BR><FONT SIZE=3D2>Subject: [parisc-linux] PDC firmware revision FAQ =
update</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Hi folks,</FONT>
</P>

<P><FONT SIZE=3D2>The issue of PDC/firmware revs came up locally and =
sounded like a FAQ.</FONT>
<BR><FONT SIZE=3D2>I added</FONT>
</P>

<P><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp; &quot;10. How can I check if the =
PDC (firmware) revision is the latest?&quot;</FONT>
</P>

<P><FONT SIZE=3D2>and what I knew/could find to our FAQ at:</FONT>
</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=3D2><A =
HREF=3D"http://www.parisc-linux.org/faq.html" =
TARGET=3D"_blank">http://www.parisc-linux.org/faq.html</A></FONT>
</P>

<P><FONT SIZE=3D2>The new FAQ entry should be visible to the world in =
the next hour or so.</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp; **** WARNING ****</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp; Firmware upgrades can *kill* your =
machine!</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp; **** WARNING ****</FONT>
</P>

<P><FONT SIZE=3D2>Don't do it just because. Read the FAQ carefully. =
Take the</FONT>
<BR><FONT SIZE=3D2>time to figure out why you might need the upgrade =
and expose</FONT>
<BR><FONT SIZE=3D2>yourself to this risk.</FONT>
</P>

<P><FONT SIZE=3D2>grant</FONT>
</P>

<P><FONT SIZE=3D2>ps. please don't ask me why your favorite machine's =
PDC isn't listed.</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp; I don't run the referenced =
sites.</FONT>
</P>

<P><FONT =
SIZE=3D2>---------------------------------------------------------------=
------------</FONT>
<BR><FONT SIZE=3D2>To unsubscribe: send e-mail to =
parisc-linux-request@thepuffingroup.com with</FONT>
<BR><FONT SIZE=3D2>`unsubscribe' as the subject.</FONT>
</P>

</BODY>
</HTML>
------_=_NextPart_001_01C05961.9E1AB8A8--


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Include trouble
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In-Reply-To: <Pine.LNX.4.21.0011282016040.18407-100000@front.linuxcare.com.au> from "Alan Modra" at Nov 28, 2000 08:19:20 pm
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Xref: news.gmane.org gmane.linux.ports.parisc:8635

> On Tue, 28 Nov 2000, Alan Modra wrote:
> 
> > As far as I understand, gcc's cpp has a built-in definition of size_t,
> > __SIZE_TYPE__, and it ultimately gets it's idea of the definition from the
> > kernel includes on the machine where gcc was compiled.  ie. recompile gcc
> > with the new kernel headers installed, and the problem should go away.
> 
> No, that's wrong.  __SIZE_TYPE__ comes from `#define SIZE_TYPE' in
> gcc/config/pa/pa-linux{,64}.h  I'll check in a patch to gcc in a few
> moments.

Hmm.  Most 32 bit systems use "unsigned int" rather than "unsigned long".
Using "unsigned long" might cause problems with packages like libio.
I know there is a problem if off_t is not the same as size_t.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Mouse driver for PS/2
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Thomas Marteau wrote:
> Hi all,
> 
> 	We appreciate if someone can explain where we can find request_irq and
> request_region in hp_psaux.c and also, what are they doing?

include/linux/sched.h:extern int request_irq(unsigned int, ...)
(Implementation is in arch/parisc/kernel/irq.c)

The request_irq() "allocates" an IRQ line for use by the device - this
program the PIC (or APIC) on x86 platforms. request_irq() is also how
an interrupt handler is associated with a specific IRQ line. Since
PA Risc CPU's don't have IRQ lines going into them, IRQ's are virtualized
and don't always represent a physical IRQ line.

Under LASI, see gsc_alloc_irq(&gsc_irq) usage in drivers/gsc/lasi.c.
lasi_find_irq() helps associate the PS/2 interrupt handler with
the correct IRQ line which is internal to lasi.


include/linux/ioport.h:#define request_region(start,n,name) ...

request_region() will reserve a range of I/O port address from the
global I/O space. request_mem_region() does the same for MMIO.
Drivers that use inb/outb (as defined in include/asm-parisc/io.h)
must use request_region(). Drivers that use gsc_readb/gsc_writeb
(as defined in include/asm-parisc/gsc.h) must use request_mem_region().

Collisions are probably occuring where a driver originally used inb/outb
and those were redefined to use gsc_readb/writeb functions. But the
driver is still using request_region().


And it doesn't help that I may have broken some of the resource mgt
with some code I committed last night. It worked on my boxes (A180/C3K)
but broke on other folks. Paul Bame helped find/fix one bug but
I shouldn't be surprised if more bugs are still out there.
I will be fixing some known resource failure problems on A500.
Please post problems on other platforms to parisc-linux list as well.

hope this helps,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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William Ferguson wrote:

> Is the web server at www.parisc-linux.org down?  Can't seem to connect from
> San Diego.

Yes. Linuxcare is having some <cough> DNS problems right now and
they host that site. Any forecasts on when that will be back up?

grant


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From: Paul Bame <bame@noam.fc.hp.com>
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             <200011281737.MAA24142@hiauly1.hia.nrc.ca> 
Xref: news.gmane.org gmane.linux.ports.parisc:8638

= Hmm.  Most 32 bit systems use "unsigned int" rather than "unsigned long".

I will be happy to change it back to unsigned int.  The only reason
I used unsigned long is because it seems off_t wants to be, to a
first approximation, the word length of the machine, and 'long' does
that.

= Using "unsigned long" might cause problems with packages like libio.


= I know there is a problem if off_t is not the same as size_t.

What problem is that?  I'm working on a proposal for the palinux
type sizes at the moment.

One dilema is that off_t is supposed to
be good for file offsets, which these days means it should be 64 bits.
size_t refers to the sizes of objects which are expected to fit in
RAM, so should be the word size of the machine.  So there's a conflict
because one logic suggests 64-bit off_t and 32-bit size_t on 32-bit palinux,
but your statement suggests they should be the same size.  Any ideas?

However I'm leaning towards leaning with the older 32-bit off_t because
we might not want to be the first ones to fix all the problems with
making it 64 bits on a 32-bit machine.

	-P


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From: Alex deVries <adevries@redhat.com>
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Subject: [parisc-linux] The kernel builds!!!
Date: Sat, 1 May 1999 00:24:37 -0400 (EDT)
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On Sat, 1 May 1999, Philipp Rumpf wrote:
> prumpf@insula:~/cvs-s/parisc/linux > ls -l vmlinux 
> -rwxr-xr-x   1 prumpf   users      353695 May  1 03:01 vmlinux
> 

I'm pretty sure that this is the first every monolithic kernel to be build
for PA RISC.

This is a pretty significant feat, and I'd encourage you wherever you are
to stand up and clap your hands/wings to Philipp and everyone else who's
helped out. 

This is going very very well... I hope people can appreciate the
significance of this step.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team




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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] Mouse driver for PS/2
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Hi all,

	We have a sample of code for the mouse driver. But, we would like to
know how the Puffin would like the implementation of the driver. Because
of drag & drop..., do you want two different interrupt functions or a
single that does a redirection. Also , we have seen that busmouse.c is
quite interesting for our driver. Do we make a copy and call it
hp_mouse.c?

Thanks for your answer,
ESIEE Team
For a better future with a mouse!


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Include trouble
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> One dilema is that off_t is supposed to
> be good for file offsets, which these days means it should be 64 bits.

off_t should be a natural type. So it should be 32bits. glibc 2.2 deals with
the 64bit I/O stuff nicely

> However I'm leaning towards leaning with the older 32-bit off_t because
> we might not want to be the first ones to fix all the problems with
> making it 64 bits on a 32-bit machine.

Go 32bit. Linus will probably refuse to touch a 32bit port using longlong
internally for off-t


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> = Hmm.  Most 32 bit systems use "unsigned int" rather than "unsigned long".
> 
> I will be happy to change it back to unsigned int.  The only reason
> I used unsigned long is because it seems off_t wants to be, to a
> first approximation, the word length of the machine, and 'long' does
> that.

Agreed.

> = Using "unsigned long" might cause problems with packages like libio.
> 
> 
> = I know there is a problem if off_t is not the same as size_t.
> 
> What problem is that?  I'm working on a proposal for the palinux
> type sizes at the moment.

It is simply dumb coding that hasn't been fixed.  There are inconsistencies
between the interface declarations and implementations.  The old libio
is on the way out.

> One dilema is that off_t is supposed to
> be good for file offsets, which these days means it should be 64 bits.
> size_t refers to the sizes of objects which are expected to fit in
> RAM, so should be the word size of the machine.  So there's a conflict
> because one logic suggests 64-bit off_t and 32-bit size_t on 32-bit palinux,
> but your statement suggests they should be the same size.  Any ideas?

Only, because of poorly written legacy code.  I agree that off_t should
be 64 bits on 32 bit platforms today.

> However I'm leaning towards leaning with the older 32-bit off_t because
> we might not want to be the first ones to fix all the problems with
> making it 64 bits on a 32-bit machine.

Maybe it isn't that bad because I noticed at least one port used unsigned
long long for off_t.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Maybe it isn't that bad because I noticed at least one port used unsigned
> long long for off_t.

Take that back.  It was __kernel_loff_t.  Just go with

typedef unsigned int	__kernel_size_t;
typedef long            __kernel_off_t;
#ifdef __GNUC__
typedef long long	__kernel_loff_t;
#endif

for the 32 bit port.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] Mouse driver for PS/2
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On Tuesday 28 November 2000 20:30, Thomas Marteau wrote:
> Hi all,

Hi Thomas,

>
> 	We have a sample of code for the mouse driver. But, we would like to
> know how the Puffin would like the implementation of the driver. Because
> of drag & drop..., do you want two different interrupt functions or a
> single that does a redirection. Also , we have seen that busmouse.c is
> quite interesting for our driver. Do we make a copy and call it
> hp_mouse.c?

I would propose, that you check in hp_mouse.c and use different interrupt 
functions for now. Changing it later shouldn't be too difficult.

Greetings,
	Helge.  

>
> Thanks for your answer,
> ESIEE Team
> For a better future with a mouse!


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Subject: Re: [parisc-linux] PDC firmware revision FAQ update
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On Tue, 28 Nov 2000, Grant Grundler wrote:

> Yes. Linuxcare is having some <cough> DNS problems right now and
> they host that site. Any forecasts on when that will be back up?

Well, it looks like our DNS issues are fixed... the site should be
accessible now.

Dave
-- 
Dave O'Neill,    Senior Linux Consultant,     Linuxcare, Inc.
desk: (613) 562-9949 fax: (613) 562-9700 cell: (613) 223-0219
doneill@linuxcare.com               http://www.linuxcare.com/


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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
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             <E140qxQ-0004wV-00@the-village.bc.nu> 
Xref: news.gmane.org gmane.linux.ports.parisc:8646

= Go 32bit. Linus will probably refuse to touch a 32bit port using longlong
= internally for off-t

Hmmm, too bad, since we have few palinux backwards compatibility issues and
could just have the __USE_FILE_OFFSET64 glibc magic be a no-op rather
than supporting all those extra *64 syscalls.  Plus we'd need
considerably fewer syscall translators to run 32-bit apps on 64-bit
kernel (but might need more for 32-bit hpux apps).  It seems illogical
to make a file-system-related data type different based on cpu
word size but I understand this isn't simple -- oh well.

Seems like the consensus is 32-bit off_t on 32-bit kernel and just
live with all those *64 syscalls -- many not supported on palinux
yet I notice.

	-P


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> Seems like the consensus is 32-bit off_t on 32-bit kernel and just
> live with all those *64 syscalls -- many not supported on palinux
> yet I notice.

Remember providing you use off_t you can just tell glibc to do all the work
for you and write with a 64bit off_t to userspace


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From: Alan Modra <alan@linuxcare.com.au>
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On Tue, 28 Nov 2000, John David Anglin wrote:

> Hmm.  Most 32 bit systems use "unsigned int" rather than "unsigned long".

There's some precedent for using "unsigned long", as that is what is used
on 32-bit hpux11 and osf gcc targets.

current sourceware CVS gcc/config/pa/:

$ grep SIZE_TYPE *
grep: CVS: Is a directory
pa-64.h:#undef SIZE_TYPE
pa-64.h:#define SIZE_TYPE "long unsigned int"
pa-hpux.h:#undef SIZE_TYPE
pa-hpux.h:#define SIZE_TYPE "unsigned int"
pa-hpux11.h:#undef SIZE_TYPE
pa-hpux11.h:#define SIZE_TYPE "long unsigned int"
pa-hpux7.h:#undef SIZE_TYPE
pa-hpux7.h:#define SIZE_TYPE "unsigned int"
pa-linux.h:#undef SIZE_TYPE
pa-linux.h:#define SIZE_TYPE "unsigned int"
pa-osf.h:#undef SIZE_TYPE
pa-osf.h:#define SIZE_TYPE "long unsigned int"
pa-pro-end.h:#undef SIZE_TYPE
pa-pro-end.h:#define SIZE_TYPE "unsigned int"
pa.h:#define SIZE_TYPE "unsigned int"

Some further grepping shows quite a number of other 32-bit gcc targets
using "unsigned long", but I didn't see any 32-bit linux targets in the
list.  Paul, If you change back to "unsigned int", please change
gcc/config/pa/pa-linux.h too.

Alan
-- 
Linuxcare.  Support for the Revolution.


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to all here I was annaouncing an offer for hp hardware recently:
it'll take longer than initially expected 
to convince our bosses ;-/
please stay patient...

frank


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Subject: [parisc-linux] New binutils RPM and .tar.gz
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The new binutils RPM is on ftp://puffin.external.hp.com, which has the fix
for the linker in it.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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From: Matthias Juchem <matthias@archimed.math.uni-mannheim.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] parisc-0.5.iso and stack trace
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Hi there.

I've just downloaded the ISO images and tried to boot an  9000/705. I keep
getting a stack trace. Can you tell me which part of the trace I can send
you so that you could eventually tell me what is wrong?

TIA,
 Matthias


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Subject: Re: [parisc-linux] gcc crashes/out of memory and groff
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> With groff -fno-gcse does not help but -O0 does. Without -O0 you get an
> internal error.
> 
> g++ -I. -I/usr/src/redhat/BUILD/groff-1.16/src/roff/troff -I/usr/src/redhat/BUILD/groff-1.16/src/include -I/usr/src/redhat/BUILD/groff-1.16/src/include -DHAVE_UNISTD_H=1 -DHAVE_DIRENT_H=1 -DHAVE_LIMITS_H=1 -DHAVE_SYS_DIR_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRINGS_H=1 -DSTDLIB_H_DECLARES_PUTENV=1 -DSTDIO_H_DECLARES_POPEN=1 -DSTDIO_H_DECLARES_PCLOSE=1 -DHAVE_SYS_NERR=1 -DHAVE_SYS_ERRLIST=1 -DHAVE_CC_LIMITS_H=1 -DRETSIGTYPE=void -DHAVE_STRUCT_EXCEPTION=1 -DHAVE_UNISTD_H=1 -DHAVE_GETPAGESIZE=1 -DHAVE_MMAP=1 -DHAVE_FMOD=1 -DHAVE_STRTOL=1 -DHAVE_GETCWD=1 -DHAVE_STRERROR=1 -DHAVE_PUTENV=1 -DHAVE_RENAME=1 -DHAVE_MKSTEMP=1 -DHAVE_STRCASECMP=1 -DHAVE_STRSEP=1 -DHAVE_STRDUP=1 -DSYS_SIGLIST_DECLARED=1  -O2 -mpa-risc-1-0 -fno-gcse  -c env.cc
> env.cc: In member function `void environment::output_line (node *, hunits)':
> env.cc:1582: Internal error: Segmentation fault.
>    Please submit a full bug report.
>    See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
> make[2]: *** [env.o] Error 1
> make[2]: Leaving directory `/usr/src/redhat/BUILD/groff-1.16/src/roff/troff'

This error is also exception related but appears different from the
memory explosion.  It occurs in scan_region in except.c.  The memory
explosion that occurs without -fno-gcse does seem to occur in the
gcse pass as I suspected.  I need to rebuild gcc with debugging to
get further.

I was able to build the groff package with `CXXFLAGS="-O3 -fno-exceptions"'.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: "Jorge L. deLyra" <delyra@latt.if.usp.br>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP 9000/735-125
Date: Wed, 29 Nov 2000 20:22:47 -0200 (BRST)
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I just booted the palinux-0.5.iso CD on a HP 9000 model 735 workstation.
It went on quite a bit before hanging immediatelly after reporting the
serial ports. Gave large amount of what looks like traceback or state
information. Question: would it do anyone any good if I tried to get
everything the kernel said before the hang into a message in this list?

							Cheers,

----------------------------------------------------------------
        Jorge L. deLyra,  Associate Professor of Physics
            The University of Sao Paulo,  IFUSP-DFMA
       For more information: finger delyra@latt.if.usp.br
----------------------------------------------------------------


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To: "Jorge L. deLyra" <delyra@latt.if.usp.br>
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Xref: news.gmane.org gmane.linux.ports.parisc:8654

"Jorge L. deLyra" wrote:
> I just booted the palinux-0.5.iso CD on a HP 9000 model 735 workstation.
> It went on quite a bit before hanging immediatelly after reporting the
> serial ports. Gave large amount of what looks like traceback or state
> information. Question: would it do anyone any good if I tried to get
> everything the kernel said before the hang into a message in this list?

Certainly. I won't be able to debug the problems since I (a) don't have
the time too (unless it's obvious) and (b) don't have a 735 setup
for testing.

This is becoming a FAQ:
"My system crashed after ...  What should I do next?"

I'm thinking people in the support space would know how to write
this one really well :^)
Is I get one in the mail, I'll add it to our FAQ.

thanks,
grant


Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: "Steve Moret" <smoret@uci.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] HP 9000/735-125
Date: Wed, 29 Nov 2000 15:28:20 -0800
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Xref: news.gmane.org gmane.linux.ports.parisc:8655

Jorge,

I have a 735-125 and am able to net-boot it on a custom configured kernel as
long as I disable the ASP parallel ports. It works quite well using an NFS
root as I cannot get the SCSI hard drives to mkfs. I was going to try and
debug it but have yet to find the free time. I can e-mail you my working
.config for the kernel, or build kernels (tested on my own 735) for people
if they need them.

--
Steve Moret
smoret@uci.edu

> -----Original Message-----
> From: Grant Grundler [mailto:grundler@cup.hp.com]
> Sent: Wednesday, November 29, 2000 3:19 PM
> To: Jorge L. deLyra
> Cc: parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] HP 9000/735-125
>
>
> "Jorge L. deLyra" wrote:
> > I just booted the palinux-0.5.iso CD on a HP 9000 model 735 workstation.
> > It went on quite a bit before hanging immediatelly after reporting the
> > serial ports. Gave large amount of what looks like traceback or state
> > information. Question: would it do anyone any good if I tried to get
> > everything the kernel said before the hang into a message in this list?
>
> Certainly. I won't be able to debug the problems since I (a) don't have
> the time too (unless it's obvious) and (b) don't have a 735 setup
> for testing.
>
> This is becoming a FAQ:
> "My system crashed after ...  What should I do next?"
>
> I'm thinking people in the support space would know how to write
> this one really well :^)
> Is I get one in the mail, I'll add it to our FAQ.
>
> thanks,
> grant
>
>
> Grant Grundler
> Unix Systems Enablement Lab
> +1.408.447.7253
>
> ------------------------------------------------------------------
> ---------
> To unsubscribe: send e-mail to
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
>
>


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Subject: Re: [parisc-linux] HP 9000/735-125
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Xref: news.gmane.org gmane.linux.ports.parisc:8656

X
On Thursday 30 November 2000 00:28, Steve Moret wrote:
> I have a 735-125 and am able to net-boot it on a custom configured kernel
> as long as I disable the ASP parallel ports. ....

Steve,

I really would like to get the parallel-port problems on ASP get fixed as 
soon as possible.
Could you please mail me your bootlog (with parport enabled), so I can try to 
track down the problem.
Maybe you can also check out CVS again, and test if this version works for 
you ?

Thanks,
	Helge Deller


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Subject: [parisc-linux] XFree status
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Xref: news.gmane.org gmane.linux.ports.parisc:8657

I have a server linked. inb/inw/outb/outw and friends are right now null
functions until I fill them in. Thats not a big deal. Initially I'll probably
use /dev/port but for speed I hope everyone uses mmio based hardware.

Also is this bad ?

/usr/bin/ld: lbxdix.o(.text+0x6fc): fixing R_PARISC_DPREL21L
/usr/bin/ld: lbxprop.o(.text+0xde4): fixing R_PARISC_DPREL21L
/usr/bin/ld: lbxprop.o(.text+0xdf4): fixing R_PARISC_DPREL21L

Alan


phux:/usr/src/redhat/BUILD/XFree86-4.0.1/xc/programs/Xserver# ./XFree86 

XFree86 Version 4.0.1a / X Window System
(protocol Version 11, revision 0, vendor release 6400)
Release Date: 2 August 2000
	If the server is older than 6-12 months, or if your card is newer
	than the above date, look for a newer version before reporting
	problems.  (see http://www.XFree86.Org/FAQ)
Operating System: Linux 2.4.0-test6 parisc [ELF] 
(==) Log file: "/var/log/XFree86.0.log", Time: Wed Nov 29 19:40:16 2000
(==) Using config file: "/etc/X11/XF86Config"
Parse warning on line 77 of section Keyboard in file /etc/X11/XF86Config
	Ignoring obsolete keyword "LeftAlt".
Parse error on line 77 of section Keyboard in file /etc/X11/XF86Config
	"Meta" is not a valid keyword in this section.
(EE) Problem parsing the config file
(EE) Error from xf86HandleConfigFile()

Fatal server error:
no screens found

When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please reports problems to xfree86@xfree86.org.


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On Thu, 30 Nov 2000, Alan Cox wrote:

> Also is this bad ?
> 
> /usr/bin/ld: lbxdix.o(.text+0x6fc): fixing R_PARISC_DPREL21L

No.

It's a symptom of a variable's "constness" being declared differently from
the way the variable is defined.  For instance, referring to "extern int foo"
in one object with foo defined as "const int foo" in another.  I'll be
removing the linker warning at some stage.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Xref: news.gmane.org gmane.linux.ports.parisc:8659

Alan Cox wrote:
> I have a server linked.

Alan - that's Cool! Wow!

> inb/inw/outb/outw and friends are right now null
> functions until I fill them in. Thats not a big deal. Initially I'll probably
> use /dev/port but for speed I hope everyone uses mmio based hardware.

All HP graphics for PARISC are memory mapped. Both "GSC" and PCI flavors.

But I'm pretty clueless how linux X server finds/talks to a frame buffer.
For HPUX, the graphics driver supports some ioctl()'s.
Any references to describe how it works for linux?

parisc-linux doesn't create kernel virtual addresses for MMIO.
Which interface is used to create user virtual addresses for MMIO?
(In general - not just for frame buffers)

Is the PCI address passed to user space?
I'm wondering if/how "bus_to_virt()" type translations take place.

sorry for the many questions...

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] CVS linux Vs. -test10
Date: 30 Nov 2000 00:09:03 -0800
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>>>>> "Grant" == Grant Grundler <grundler@cup.hp.com> writes:
    Grant> For the record, the second issue bdale made clear was we
    Grant> need "boot floppies" debian package working. We don't need
    Grant> more ISO images (no offense to pjlahaie for his good
    Grant> work). "Boot floppies" is a pre-requisite to becoming part
    Grant> of the next debian release. Given I still don't have a clue
    Grant> how to build a debian package and I can still contribute
    Grant> alot in other areas, it doesn't make sense for me to do it
    Grant> myself.

</lurk>

Oooh, there's a reason for me to finally get the 712/80 under my desk
to be more than a foot-rest.  I'll see what I can do about this.

Note that the likelihood of Debian releasing woody anytime soon is
vanishingly small, so this dosen't have to happen Right Now.

<lurk>

-- 
Stephen (debian developer)

"Strange women lying in ponds distributing swords is no basis for a
system of government"


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To: Alex deVries <adevries@redhat.com>
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On Sat, 1 May 1999, Alex deVries wrote:

> 
> On Sat, 1 May 1999, Philipp Rumpf wrote:
> > prumpf@insula:~/cvs-s/parisc/linux > ls -l vmlinux 
> > -rwxr-xr-x   1 prumpf   users      353695 May  1 03:01 vmlinux
> > 
> 
> I'm pretty sure that this is the first every monolithic kernel to be build
> for PA RISC.
> 
> This is a pretty significant feat, and I'd encourage you wherever you are
> to stand up and clap your hands/wings to Philipp and everyone else who's
> helped out. 

The mere fact is more then a leap for mankind.

GREAT JOB!

Hugo.

        +------------------------+------------------------------+
        | Hugo van der Kooij     | Hugo.van.der.Kooij@caiw.nl   |
        | Oranje Nassaustraat 16 | http://www.caiw.nl/~hvdkooij |
        | 3155 VJ  Maasland      | (De man met de rode hoed)    |
        +------------------------+------------------------------+
    "Computers let you make more mistakes faster than any other invention in
      human history, with the possible exception of handguns and tequila."
                (Mitch Radcliffe)


From - Thu Nov 08 21:14:25 2018
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From: "Steve Moret" <smoret@uci.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] HP 9000/735-125
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To: "Helge Deller" <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:8662

Helge,

My mistake! I did a full build with todays CVS and parport didn't die. So
somewhere between the 17th and now parport must have been fixed.

Now, maybe you can help me identify my SCSI problem. I don't know if it is
because of driver issues or a bad disk (completly likely). Do other people
have the Fast SCSI2 working on their 735s?

Whenever I do a mke2fs (after partitioning the drive with fdisk ok) it dies.

At bootup I get:

SCSI subsystem driver Revision: 1.00
sim700: Couldn't get consistent shared memory
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86
scsi0: Revision 0x0
Post test1, istat 05, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: WARNING: target data areas are not dma coherent!
scsi0: test 1 completed ok.
scsi0: sim700_intr_handle() called with no interrupt
scsi0 : LASI/Simple 53c7xx
  Vendor: HP        Model: C2235             Rev: 0B11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: HP        Model: C2235             Rev: 0B11
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 5, lun 0
Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
SCSI device sda: 825012 512-byte hdwr sectors (422 MB)
Partition check:
 sda: sda1 sda2
SCSI device sdb: 825012 512-byte hdwr sectors (422 MB)
 sdb: sdb1 sdb2



And then if I try to mke2fs the disk I get:

hp735:~# fdisk -l /dev/sda

Disk /dev/sda: 13 heads, 62 sectors, 1023 cylinders
Units = cylinders of 806 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sda1             1       910    366699   83  Linux
/dev/sda2           911      1023     45539   82  Linux swap
hp735:~# mke2fs /dev/sda1
mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
91800 inodes, 366699 blocks
18334 blocks (5.00%) reserved for the super user
First data block=1
45 block groups
8192 blocks per group, 8192 fragments per group
2040 inodes per group
Superblock backups stored on blocks:
        8193, 24577, 40961, 57345, 73729, 204801, 221185

Writing inode tables: done
Writing superblocks and filesystem accounting information: scsi0: Unable to
abort command for target 5
scsi0: Unable to send Bus Device Reset for target 5
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 0cf15038 (script[0x140e]), dsps = 0cf15cde, target = 0
scsi0: Failing command for ID5
scsi0: sim700_intr_handle() called with no interrupt
pa11_dma_map_single(PCI_DMA_NONE) called by c01cb6d4
kernel BUG at pci-dma.c:392!
pa11_dma_unmap_single(PCI_DMA_NONE) called by c01ca3bc
kernel BUG at pci-dma.c:403!
SCSI disk error : host 0 channel 0 id 5 lun 0 return code = 2
 I/O error: dev 08:01, sector 268
 I/O error: dev 08:01, sector 270
 I/O error: dev 08:01, sector 396
 I/O error: dev 08:01, sector 16396
 I/O error: dev 08:01, sector 16524
 I/O error: dev 08:01, sector 16652

Of course the I/O errors continue on for a long time. Are these bad drives?
Or is there a problem with the driver that still needs to be worked out?

Thanks for all your help, I hope my spews of debug output are helpful,

--
Steve Moret
smoret@uci.edu

> -----Original Message-----
> From: Helge Deller [mailto:deller@gmx.de]
> Sent: Wednesday, November 29, 2000 4:11 PM
> To: Steve Moret
> Cc: parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] HP 9000/735-125
>
> I really would like to get the parallel-port problems on ASP get fixed as
> soon as possible.
> Could you please mail me your bootlog (with parport enabled), so
> I can try to
> track down the problem.
> Maybe you can also check out CVS again, and test if this version
> works for
> you ?


From - Thu Nov 08 21:14:25 2018
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From: "Jorge L. deLyra" <delyra@latt.if.usp.br>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 9000/735-125
Date: Thu, 30 Nov 2000 08:58:22 -0200 (BRST)
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Xref: news.gmane.org gmane.linux.ports.parisc:8663

> > information. Question: would it do anyone any good if I tried to get
> > everything the kernel said before the hang into a message in this list?
> 
> Certainly. I won't be able to debug the problems since I (a) don't have
> the time too (unless it's obvious) and (b) don't have a 735 setup
> for testing.

OK, here goes. I want to congratulate you all on this effort. We have five
of these HP-9000 stations here, quite old by now. They used to be our main
number crunching force. They are wonderfully built hardware in bad need of
a wonderful system on them!  |:-)

----------------------------------------------------------------
        Jorge L. deLyra,  Associate Professor of Physics
            The University of Sao Paulo,  IFUSP-DFMA
       For more information: finger delyra@latt.if.usp.br
----------------------------------------------------------------

Seyon Copyright (c) 1992-1993 Muhammad M. Saggaf. All rights reserved.
Version 2 rev. 20c i586-Linux steve@hammer 05/23/99 20:19:22.

Locating Modems...
Modem `/dev/ttyS0' is Available.




(c) Copyright.  Hewlett-Packard Company.  1992.
All rights reserved.

PDC ROM rev. 2.7
IODC ROM rev. 1.1
80 MB of memory configured and tested.


Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.6.0                 HP      C3725S
P1                    scsi.4.0                 TOSHIBA CD-ROM XM-3301TA



b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu: b p1

Trying scsi.4.0
Boot path initialized.
Attempting to load IPL.


Soft booted.
palo ipl bame@noam Tue Oct 31 14:18:02 MST 2000
0/vmlinux 2140145 bytes @ 0x6f9800
0/palo-cmdline '0/vmlinux ROOT=/ TERM=LINUX root=/dev/scd0'
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100150 first 00100000 n 4
Segment 0 load 00100000 size 1460344 mediaptr 0x1000
Segment 1 load 00266000 size 179048 mediaptr 0x166000
Segment 2 load 00294000 size 109876 mediaptr 0x192000
Segment 3 load 002b0000 size 8192 mediaptr 0x1ad000
branching to kernel entry point 0x00100150
PDC Console Initialized
The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02da000
(0x504d6c,0x504d6c,0x0,0x0)
PALO command line: 'ROOT=/ TERM=LINUX root=/dev/scd0'
PALO initrd 0-0
model   00002060 00000481 00000000 00000000 77f451b0 ffffffff 00000004 0000000a 0000000a
vers    00000015
CPUID vers 0 rev 0
Searching for devices in PDC firmware... processor hpa 0xfffbe000
 an older box...
Found devices:
1. Outfield Core BA (11) at 0xf082f000, versions 0x9, 0x0, 0x70, 0x0, 0x0
2. Outfield Core SCSI (10) at 0xf0825000, versions 0x9, 0x0, 0x71, 0x0, 0x0
3. Outfield Core LAN (802.3) (10) at 0xf0826000, versions 0x9, 0x0, 0x72, 0x0, 0x0
4. Outfield Core HIL (10) at 0xf0821000, versions 0x9, 0x0, 0x73, 0x0, 0x0
5. Outfield Core RS-232 (10) at 0xf0823000, versions 0x9, 0x0, 0x75, 0x0, 0x0
6. Outfield Core RS-232 (10) at 0xf0822000, versions 0x9, 0x0, 0x75, 0x0, 0x0
7. Outfield Core Centronics (10) at 0xf0824000, versions 0x9, 0x0, 0x74, 0x0, 0x0
8. Outfield FW SCSI (10) at 0xf0830000, versions 0x9, 0x0, 0x7c, 0x0, 0x0
9. Outfield Audio (10) at 0xf1000000, versions 0x9, 0x0, 0x7f, 0x0, 0x0
10. Cobra EISA BA (11) at 0xfc000000, versions 0x4, 0x0, 0x76, 0x0, 0x0
11. Snake Cheetah (735/130) (0) at 0xfffbe000, versions 0x206, 0x0, 0x4, 0x0, 0x81
12. Snake Cheetah (1) at 0xfffbf000, versions 0x37, 0x0, 0x9, 0x0, 0x0
That's a total of 12 devices.
CPU(s): 1 x PA7100 (PCX-T) at 125.000000 MHz
Linux version 2.4.0-test6 (pjlahaie@elenuial.thepuffingroup.com) (gcc version 2.96 20000925 (experimental)) #32 Mon Nov 6 10:20:58 EST 2000
free_bootmem(0x2daa00, 0x4d25600)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 20480
zone(0): 10240 pages.
zone(1): 10240 pages.
zone(2): 0 pages.
Kernel command line: ROOT=/ TERM=LINUX root=/dev/scd0
trap_init
Calibrating delay loop... 124.52 BogoMIPS
Memory: 77468k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
ASP version 20 at 0xf0800000 found.
Found i82596 at 0xf0826000, IRQ 87
early initialization of device eth0 is deferred
Found HIL at 0xf0821000, IRQ 94
HIL: no keyboard present.
Warning : device (10, 0x9, 0x0, 0x73, 0x0) NOT claimed by HIL 712, 715 or similiar
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
Starting kswapd v1.7
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sim700: Couldn't get consistent shared memory
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86
scsi0: Revision 0x0
Post test1, istat 05, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: WARNING: target data areas are not dma coherent!
scsi0: test 1 completed ok.
scsi0: sim700_intr_handle() called with no interrupt
scsi0 : LASI/Simple 53c7xx
scsi : 1 host.
  Vendor: TOSHIBA   Model: CD-ROM XM-3301TA  Rev: 1651
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 4, lun 0
  Vendor: HP        Model: C3725S            Rev: 6019
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 6, lun 0
scsi : detected 1 SCSI cdrom 1 SCSI disk total.
Uniform CD-ROM driver Revision: 3.11
SCSI device sda: hdwr sector= 512 bytes. Sectors= 4194058 [2047 MB] [2.0 GB]
Partition check:
 sda: unknown partition table
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 0B DB EB IRQ 87.
82596.c $Revision: 1.14 $
Serial driver version 5.01 (2000-05-29) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled

Dumping Stack from c4f9c000 to c4f9cbc0:
c000 00000000 00000140 00000000 00000000 c027a46c 00000001 00000000 ffffffff
c020 00000000 00000000 00000000 00000000 00000000 00000000 ffffffff c027a384
c040 c027a384 c4f90000 c02b0000 c028060c 00000000 00000000 00000000 00000000
c060 00000000 00000000 00000001 00000000 00000000 00000000 00000000 c02b0000
c080 c02b0000 c4f50000 00000000 00000000 00000000 c02c9ab8 00000000 c4f9c09c
c0a0 c4f9c09c c4f9c0a4 c011a6e4 c4f9cac8 00000000 00000000 00000000 00000000
c0c0 00000000 00000000 00000000 00000000 00000000 00000000 c4f9c000 c011d4a8
c0e0 00000000 00000037 00000000 00000000 00000024 00000000 0000005b 00000000
c100 00000000 00000000 00000000 00000000 00000000 80000000 00000000 00000000
c120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 fffffeff
c1c0 00000000 ffffffff 00000000 c027afb4 ffffffff ffffffff ffffffff ffffffff
c1e0 ffffffff ffffffff 00800000 05000000 00000000 ffffffff ffffffff ffffffff
c200 00000500 00000500 00000400 00000400 ffffffff ffffffff ffffffff ffffffff
c220 00007377 61707065 72000000 00000000 00000000 00000000 00000000 00000000
c240 00000000 00000000 00005000 c0267054 c0267054 c013d1e8 00010000 c4ffeba0
c260 c02238c4 c0236708 c02d9800 00504d6c 00000000 c011bb88 c0267000 00005000
c280 c0267054 c0267000 0000003e c027a000 00000001 c02b61eb 00000004 c02b61c7
c2a0 00000023 c02b61eb 00000000 00000000 c0100290 0000003e 00000000 00000024
c2c0 0000000b c027a4ac c027a000 08000059 00000000 000000ff 00000060 00000000
c2e0 00000060 00000002 002b2080 00000008 002b50c0 c0266000 00000000 023c3460
c300 c02b08c0 00000001 08000000 00000000 00000000 00000000 00856606 00000000
c320 00000000 00000000 42780000 00000000 431c0000 00000000 4471cccc 00000000
c340 000003c7 00000000 fffffde0 fffffde0 7f7fffff ffffffff 7f7fffff ffffffff
c360 00000000 00000000 00000000 00000000 41800000 00000000 00000010 00000010
c380 00000000 00000000 fffffde0 fffffde0 41000000 00000000 40800000 00000000
c3a0 fffffde0 fffffde0 41000000 00000000 fffffde0 fffffde0 40800000 00000000
c3c0 41000000 00000000 40300000 00000000 40200000 00000000 40200000 00000000
c3e0 41800000 fffffde0 40000000 00000000 40000000 00000000 40800000 00000000
c400 41000000 00000000 00000000 00000000 c4f9cb80 c0103cf4 00000000 00000000
c420 00000000 00000000 00000000 00000000 c011bb78 c011bb7c 40800000 00000000
c440 00281000 00000000 c0280040 c0280064 00000000 c0280204 00000000 00000000
c460 00000000 00000000 00000000 c4f9c468 00000000 00000000 00000000 00000000
c480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4e0 00000000 00000000 00000000 c0103c48 00000000 00000000 00000000 00000000
c500 c4f9c000 c028060c 00000000 00000000 00000000 00000000 00000000 00000000
c520 00000000 00000000 00000000 c01002a4 00000000 00000000 00000000 00000000
c540 00000000 00000000 00000000 00000000 c02b06c0 c4f9c000 c028060c 00000000
c560 c02b0000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c580 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c5a0 00000000 00000000 00000000 c02950a4 00000000 00000000 00000000 00000000
c5c0 00000001 c0284000 00000000 00000000 00000002 c027a4a0 c027a4a0 c0258bbc
c5e0 00000000 00000000 00000000 c0294fe8 00000000 00000000 00000000 00000000
c600 00000000 08000059 00000000 00000000 f00012a0 000ff000 000a5a59 000a5a59
c620 c0295794 c02d9800 00504d6c c02cc000 c0266000 c02c8000 c02aed34 c02aed24
c640 c02aed34 c02aed20 00000000 00000000 000ff000 000a5a59 000a5a59 c0295794
c660 c02d9800 00504d6c c02cc000 c029bc3c c02c8000 c02aed34 c02aed04 c02c8000
c680 c02c5fe8 c02c60a4 c028758c 00000040 c0244ed8 c0244a0c c0244b80 c0244edc
c6a0 01234567 c4f9c000 00000000 c02a6e64 c4f9c698 00000000 c02cc000 c0266000
c6c0 10000080 c02c5fe8 c02c60a4 c028758c 00000040 c4ffeea0 f00012a0 000ff000
c6e0 000a5a59 000a5a59 c0295794 c0155890 00504d6c c02cc000 c0266000 c02c8000
c700 c02c6164 00000100 c0244c38 00000000 c0245000 00000000 c02c5fe8 c02c5fe8
c720 c01e55ec c028be04 c02c9a20 c0109e74 c4ffc200 c028b474 c4f4a000 c028bf60
c740 00000004 c02aeab4 c02c8d20 c02b621f 00000004 c02b61ca 00000054 c02b621f
c760 00000000 00000001 c027a000 c02a6de4 0000003c 00000058 0000000b c027a4ac
c780 0000005a c4ff74a0 00000000 000000ff 00000060 00000000 00000060 00000002
c7a0 002b2080 00000008 002b50c0 c019324c 00000000 023c3460 c4f9c980 00000001
c7c0 08000000 00000000 00005301 f0823800 00856606 00000000 00000000 c028478c
c7e0 42780000 00000000 431c0000 00000000 4471cccc 00000000 000003c7 00000000
c800 fffffde0 fffffde0 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
c820 00000000 00000000 41800000 00000000 00000010 00000010 f0823800 00000000
c840 00000003 fffffde0 41000000 00000000 40800000 00000000 fffffde0 fffffde0
c860 41000000 00000000 fffffde0 fffffde0 40800000 00000000 41000000 00000000
c880 40300000 00000000 40200000 00000000 40200000 00000000 c018ffb8 c02846d8
c8a0 c02c8800 c026c000 c02c8d20 0000000b c028478c 00000000 41000000 00000000
c8c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c8e0 00000000 00000000 c011bb78 c0192bd4 4471cccc 00000000 000003c7 00000000
c900 0000000a c028478c c4f9c7c8 00000090 00000006 2b6a0000 00000000 00000000
c920 00000000 00000000 41800000 00000000 00000010 00000010 00000000 00000000
c940 fffffde0 fffffde0 41000000 00000000 40800000 00000000 fffffde0 fffffde0
c960 41000000 00000000 fffffde0 c011e9bc 40800000 00000000 41000000 00000000
c980 0004000a c0221800 c011e9f8 c4ff6520 c4ff6200 c0244f10 00000008 f0823800
c9a0 00000003 00000007 c0191568 c02c60a4 fffffffc c0245000 c0245000 c02d72b8
c9c0 c0245000 c0245000 c02c6028 00000000 c4ff6234 f0823807 f0823800 0000000a
c9e0 ffffffff c4ff6520 c4ff6200 c0266000 ffffffff 00000340 c4f9cbc0 c012dfc0
ca00 08000000 00000000 00000000 00000000 00856606 00000000 00000000 00000000
ca20 42780000 00000000 431c0000 00000000 4471cccc 00000000 000003c7 00000000
ca40 fffffde0 fffffde0 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
ca60 00000000 00000000 41800000 00000000 00000010 00000010 00000000 00000000
ca80 fffffde0 fffffde0 41000000 00000000 40800000 00000000 fffffde0 fffffde0
caa0 41000000 00000000 fffffde0 fffffde0 40800000 00000000 41000000 00000000
cac0 40300000 00000000 40200000 00000000 40200000 00000000 41800000 fffffde0
cae0 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
cb00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cb20 00000000 00000000 c011e710 c011e714 00000000 00000000 00000000 00000000
cb40 00000000 00000058 c4f9c740 c02caac8 00000007 0f881093 00000000 00000003
cb60 c02c9800 c02c9a60 c02c9a20 00000000 00000000 00000400 c4f9cd40 c01d1c98
cb80 0000003c 0000003e c027a000 00000001 c02b61e0 00000004 c02b61c7 00000018
cba0 c02b61e0 00000000 431c0000 c01046e0 4471cccc 00000000 000003c7 00000000

Data access rights fault in kernel: Code=26 regs=c4f9c980 (Addr=00000003)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001010
r0-3     00000000 c0221800 c011e9f8 c4ff6520
r4-7     c4ff6200 c0244f10 00000008 f0823800
r8-11    00000003 00000007 c0191568 c02c60a4
r12-15   fffffffc c0245000 c0245000 c02d72b8
r16-19   c0245000 c0245000 c02c6028 00000000
r20-23   c4ff6234 f0823807 f0823800 0000000a
r24-27   ffffffff c4ff6520 c4ff6200 c0266000
r28-31   ffffffff 00000340 c4f9cbc0 c012dfc0
sr0-4    00000000 00000000 00000000 00000000
sr4-8    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c011e710 c011e714
 IIR: 0f881093    ISR: 00000000  IOR: 00000003
ORIG_R28: 00000058


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From: "Jorge L. deLyra" <delyra@latt.if.usp.br>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] HP 9000/735-125
Date: Thu, 30 Nov 2000 09:15:11 -0200 (BRST)
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To: Steve Moret <smoret@uci.edu>
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Xref: news.gmane.org gmane.linux.ports.parisc:8664

> I have a 735-125 and am able to net-boot it on a custom configured kernel as
> long as I disable the ASP parallel ports. It works quite well using an NFS
> root as I cannot get the SCSI hard drives to mkfs. I was going to try and
> debug it but have yet to find the free time. I can e-mail you my working
> .config for the kernel, or build kernels (tested on my own 735) for people
> if they need them.

Well, looks like the problem is known, good! But we have a queer little
problem with our machines here, we are unable to boot from the network. I
think we did everything right, in fact, we are trying to use a server here
other machines boot from, it has dhcp, boopt, tftp, rarp, the works. We
set it all up, put the kernel on the tftpboot area, tested all that we
could by other means but, when we try to net boot the HPs, we are faced
with complete silence on the network. No logs on the server, nothing.

A little explanation might be needed: these are not really native 735-125
models, they were upgraded from older 720-50 models by card swapping. I am
not sure whether all cards were changed, maybe some aspects of the machine
are still old. The syntax of the net boot procedure in them is strange,
you have to put in the hardware address of the server, which is unusual.

I _suspect_ that this bios does not use tcp/ip for the net boot, but some
HP proprietary protocol relating to that clustering software they have or
used to have for these machines, in which you ran several stations out of
the disks of a single one. In any case, a listing of what happens on the
console on a net-boot trial goes below. We had a tail -f on the system log
of the server, we had tcpdump listening, but nothing at all shows up...

----------------------------------------------------------------
        Jorge L. deLyra,  Associate Professor of Physics
            The University of Sao Paulo,  IFUSP-DFMA
       For more information: finger delyra@latt.if.usp.br
----------------------------------------------------------------

Seyon Copyright (c) 1992-1993 Muhammad M. Saggaf. All rights reserved.
Version 2 rev. 20c i586-Linux steve@hammer 05/23/99 20:19:22.

Locating Modems...
Modem `/dev/ttyS0' is Available.




(c) Copyright.  Hewlett-Packard Company.  1992.
All rights reserved.

PDC ROM rev. 2.7
IODC ROM rev. 1.1
80 MB of memory configured and tested.


Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.6.0                 HP      C3725S
P1                    scsi.4.0                 TOSHIBA CD-ROM XM-3301TA



b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu: a
BOOT_ADMIN> help boot

Boot from specified device or path:          

  BOOT <boot_selection> IPL     boots Initial Program Loader (interactive mode)
  BOOT <boot_selection>         boots default boot utility

  <boot_selection> may be one of the following:

      pri                 primary path in Stable Storage
      alt                 alternate path in Stable Storage
      Pn                  Device selection from SEARCH
      eisa.<options>      EISA adapter
      fwscsi.<options>    On-board FASTWIDE SCSI interface
      lan.<options>       Slider-card LAN interface
      scsi.<options>      On-board SCSI interface

For more information on boot selection options, type  HELP <device> 
where <device> = eisa, lan, scsi, etc ...

BOOT_ADMIN> help lan


LAN (IEEE 802.3/Ethernet LAN) Path Specification

   lan.<server_address>.<init_retry>.<io_retry>

    <lan_server_address>      12 digit (hex) LAN server address 
    <init_retry>              max number of times to try a boot request
                               (0 = default, 255 = infinite)
    <io_retry>                max number of times to try a read request
                               (0 = default, 255 = infinite)

Example: to specify LAN address 123456-78ABCD with infinite
initialization retries and default I/O retries,

           lan.123456-78ABCD.255.0

If one or more parameters are not specified, the following
defaults will be used:    <lan_server_address> = 000000-000000 
                          <init_retry>   = 3 tries
                          <io_retry>     = 6 tries

BOOT_ADMIN> boot lan.0000f8-01abb1.0.0

Trying lan.0000f8-01abb1.0.0
Failed to initialize lan.0000f8-01abb1.3.0
ENTRY_INIT status = -7

00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
00000008 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
00000000 00000000 A000800C F0002898 00000000 0800090B DBEB0000 00000000 


Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.6.0                 HP      C3725S
P1                    scsi.4.0                 TOSHIBA CD-ROM XM-3301TA



b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu: 


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 9000/735-125
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To: "Jorge L. deLyra" <delyra@latt.if.usp.br>
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Xref: news.gmane.org gmane.linux.ports.parisc:8665

On Thu, Nov 30, 2000 at 08:58:22AM -0200, Jorge L. deLyra wrote:
> OK, here goes. I want to congratulate you all on this effort. We have five
> of these HP-9000 stations here, quite old by now. They used to be our main
> number crunching force. They are wonderfully built hardware in bad need of
> a wonderful system on them!  |:-)

> Serial driver version 5.01 (2000-05-29) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
> 
> Dumping Stack from c4f9c000 to c4f9cbc0:

This has been reported on 715/50 (Robert Duncan) and 715/75 (me) round
about November 15th.  At the time I tried a current cvs kernel on my
715/75 and it was even worse (IIRC).  I'll have another look at it.

Richard


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 9000/735-125
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To: Steve Moret <smoret@uci.edu>
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Xref: news.gmane.org gmane.linux.ports.parisc:8666

On Thu, Nov 30, 2000 at 01:20:28AM -0800, Steve Moret wrote:
> Now, maybe you can help me identify my SCSI problem. I don't know if it is
> because of driver issues or a bad disk (completly likely). Do other people
> have the Fast SCSI2 working on their 735s?
> 
> Whenever I do a mke2fs (after partitioning the drive with fdisk ok) it dies.


I have a 53c700 on my 715/75, and the driver was having trouble
with a CRDOM I attached, so it has some problems.  I wrote the
driver, but havn't used the 715/75 for a while since latest kernels
wouldn't boot for me.  I'll get it going again and see if the scsi
driver still works.

Richard


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] HP 9000/735-125
Date: Thu, 30 Nov 2000 13:04:49 +0100 (MET)
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Xref: news.gmane.org gmane.linux.ports.parisc:8667

Hi Steve,

> My mistake! I did a full build with todays CVS and parport didn't die.
> So
> somewhere between the 17th and now parport must have been fixed.

I checked in yesterday a modified version of
/drivers/parport/parport_gsc.c with an "#if 0 ... #endif" in the code. 
Could you try to boot again with "#if 1" (search for the text which says
something like "enable bidirectional PS/2 mode") and try again ?
If this hangs your machine I will implement a better work-around.

> 
> Now, maybe you can help me identify my SCSI problem. I don't know if it
> is
> because of driver issues or a bad disk (completly likely). 

I think Richard Hirst can help you much more with your SCSI-problems than
me.  

NB: Does your chassis LEDs work with the new kernel, and if not, could you
send me your bootlog (or "dmesg | grep led") ?

Greetings,

	Helge

-- 
Sent through GMX FreeMail - http://www.gmx.net


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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 9000/735-125
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To: "Jorge L. deLyra" <delyra@latt.if.usp.br>
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Xref: news.gmane.org gmane.linux.ports.parisc:8668

"Jorge L. deLyra" wrote:

> > I have a 735-125 and am able to net-boot it on a custom configured kernel as
> > long as I disable the ASP parallel ports. It works quite well using an NFS
> > root as I cannot get the SCSI hard drives to mkfs. I was going to try and
> > debug it but have yet to find the free time. I can e-mail you my working
> > .config for the kernel, or build kernels (tested on my own 735) for people
> > if they need them.
>
> Well, looks like the problem is known, good! But we have a queer little
> problem with our machines here, we are unable to boot from the network. I
> think we did everything right, in fact, we are trying to use a server here
> other machines boot from, it has dhcp, boopt, tftp, rarp, the works. We
> set it all up, put the kernel on the tftpboot area, tested all that we
> could by other means but, when we try to net boot the HPs, we are faced
> with complete silence on the network. No logs on the server, nothing.
>
> A little explanation might be needed: these are not really native 735-125
> models, they were upgraded from older 720-50 models by card swapping. I am
> not sure whether all cards were changed, maybe some aspects of the machine
> are still old. The syntax of the net boot procedure in them is strange,
> you have to put in the hardware address of the server, which is unusual.
>
> I _suspect_ that this bios does not use tcp/ip for the net boot, but some
> HP proprietary protocol relating to that clustering software they have or
> used to have for these machines, in which you ran several stations out of
> the disks of a single one. In any case, a listing of what happens on the
> console on a net-boot trial goes below. We had a tail -f on the system log
> of the server, we had tcpdump listening, but nothing at all shows up...

I believe the 735/755 type machines require rbootd to boot from the network.
rbootd is available at:

ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/rbootd-2.0-2.tar.gz

- Ryan



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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/75 dies in pdc_iodc_read()
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Hi,
  My 715/75 no longer boots with cvs kernel.  It hangs while
searching for devices in PDC firmware, after finding the first
device.  The beta 0.5 cd kernel gets past this point.  The device
list is:

Searching for devices in PDC firmware... processor hpa 0xfffbe000
 an older box...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0, 0x77, 0x0, 0x0
2. Scorpio Sr. Core BA (11) at 0xf082f000, versions 0x19, 0x0, 0x70, 0x0, 0x0
3. Scorpio Sr. Core SCSI (10) at 0xf0825000, versions 0x19, 0x0, 0x71, 0x0, 0x0
4. Scorpio Sr. Core LAN (802.3) (10) at 0xf0826000, versions 0x19, 0x0, 0x72, 0x0, 0x0
5. Scorpio Sr. Core HIL (10) at 0xf0821000, versions 0x19, 0x0, 0x73, 0x0, 0x0
6. Scorpio Sr. Core RS-232 (10) at 0xf0823000, versions 0x19, 0x0, 0x75, 0x0, 0x0
7. Scorpio Sr. Core RS-232 (10) at 0xf0822000, versions 0x19, 0x0, 0x75, 0x0, 0x0
8. Scorpio Sr. Core Centronics (10) at 0xf0824000, versions 0x19, 0x0, 0x74, 0x0, 0x0
9. Scorpio Sr. Audio (10) at 0xf1000000, versions 0x19, 0x0, 0x7b, 0x0, 0x0
10. Scorpio Sr. EISA BA (11) at 0xfc000000, versions 0x19, 0x0, 0x76, 0x0, 0x0
11. Unknown device (10) at 0xfc001000, versions 0x0, 0x0, 0xfff, 0x0, 0x0
12. Scorpio Sr.(715/75) (0) at 0xfffbe000, versions 0x316, 0x0, 0x4, 0x0, 0x81
13. Scorpio Sr. (1) at 0xfffbf000, versions 0x27, 0x0, 0x9, 0x0, 0x0
That's a total of 13 devices.
CPU(s): 1 x PA7100 (PCX-T) at 75.000000 MHz


So, with lastest cvs source, it gets in to the loop in
really_do_oldhw_inventory(), and first time through pdc_mem_map_hpa()
returns r_addr.hpa=0xf4000000 (the Stinger Optional Graphics).  Next
time round, mod=1, pdc_mem_map_hpa() returns r_addr.hpa=0xf8000000,
and the subsequent call to pdc_iodc_read() hangs.

I made the code skip the loop where mod=1, and it then goes on to
discover all the devices without problems.

At power on, the machine reports:

  Warning: one or more EISA cards could not be configured.
  Autoselect and search will ignore unconfigured cards.

Which I assume relates to an EISA SCSI card in the machine, which
I assume is item 11 in the above list.

Richard


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From: "Jorge L. deLyra" <delyra@latt.if.usp.br>
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Subject: Re: [parisc-linux] HP 9000/735-125
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Xref: news.gmane.org gmane.linux.ports.parisc:8670

> I believe the 735/755 type machines require rbootd to boot from the network.
> rbootd is available at:
> 
> ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/rbootd-2.0-2.tar.gz

Ah! This is it, then! Had never heard of this beast before. I see it is
available for i386, nice, our server is a Pentium. Well, thanks a whole
lot for the tip, we are certainly trying this. Well, back to work...

----------------------------------------------------------------
        Jorge L. deLyra,  Associate Professor of Physics
            The University of Sao Paulo,  IFUSP-DFMA
       For more information: finger delyra@latt.if.usp.br
----------------------------------------------------------------


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OK, rbootd is up and running, the station now establishes instantaneous
communication with the server. But it says "bad LIF magic" and does not
boot. I presume I can't just put the precompiled kernel in there. Since
I cannot cross-compile for the time being (bad HP server disk crash) is
there a net-boot kernel somewhere that I can download and try?

							Cheers,

----------------------------------------------------------------
        Jorge L. deLyra,  Associate Professor of Physics
            The University of Sao Paulo,  IFUSP-DFMA
       For more information: finger delyra@latt.if.usp.br
----------------------------------------------------------------


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Subject: [parisc-linux] Congratulations !!!
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Hello to all You brave people,

Congratulations to all of You who brought this kernel to life.
Great job done. I'm really looking forward to what will come...

Best regards
- Pascal

--
Pascal Haeussler							Inst. fuer. MKL u. KFZBau
mailto:haeussler@mkl-mail.mach.uni-karlsruhe.de		Universitaet Karlsruhe
									Kaiserstrasse 12
									76131 Karlsruhe/Germany
									(0721) 608-6472 


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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] CVS linux Vs. -test10
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> Oooh, there's a reason for me to finally get the 712/80 under my desk
> to be more than a foot-rest.  I'll see what I can do about this.
> 
> Note that the likelihood of Debian releasing woody anytime soon is
> vanishingly small, so this dosen't have to happen Right Now.

So little faith... :P

Let me know what I can do to help.... it takes my dual-400MHz i386 box
about an hour to build boot-floopies; i don't even wait to think how
long it will take on the 712/80 :-)

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] HP 9000/735-125
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Xref: news.gmane.org gmane.linux.ports.parisc:8674

On Thu, Nov 30, 2000 at 11:27:39AM +0000, Richard Hirst wrote:
> On Thu, Nov 30, 2000 at 01:20:28AM -0800, Steve Moret wrote:
> > Now, maybe you can help me identify my SCSI problem. I don't know if it is
> > because of driver issues or a bad disk (completly likely). Do other people
> > have the Fast SCSI2 working on their 735s?
> > 
> > Whenever I do a mke2fs (after partitioning the drive with fdisk ok) it dies.
> 
> 
> I have a 53c700 on my 715/75, and the driver was having trouble
> with a CRDOM I attached, so it has some problems.  I wrote the
> driver, but havn't used the 715/75 for a while since latest kernels
> wouldn't boot for me.  I'll get it going again and see if the scsi
> driver still works.

I got my 715/75 to boot.  The scsi driver still has problems with my
CDROM drive, but the disk seems ok.  I ran mke2fs of a 1Gig partition
a few times and then copied 200MB of files from the network to it.

Richard


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=     Grant> need "boot floppies" debian package working. We don't need
= 
= Oooh, there's a reason for me to finally get the 712/80 under my desk
= to be more than a foot-rest.  I'll see what I can do about this.
= 
= Note that the likelihood of Debian releasing woody anytime soon is
= vanishingly small, so this dosen't have to happen Right Now.

Well yes and no.  We want to release parisc-linux sooner than woody
will be ready for public stable release, so we'll want to do the
boot floppies work sooner than other architectures need it and
can probably therefore provide early testing too.  Since
we aren't going to time travel back to Debian potato, woody
boot floppies are increasingly interesting to replace our manual
install process (hey at least it's documented!).

	-P


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Xref: news.gmane.org gmane.linux.ports.parisc:8676

> Alan Cox wrote:
> > I have a server linked.
> Alan - that's Cool! Wow!

Its still got its atoms in a twist, so its bombing out in Xnest loading the
first font.

> > inb/inw/outb/outw and friends are right now null
> > functions until I fill them in. Thats not a big deal. Initially I'll probably
> > use /dev/port but for speed I hope everyone uses mmio based hardware.
> 
> All HP graphics for PARISC are memory mapped. Both "GSC" and PCI flavors.

Yes, but if I want to say put an S3 Trio64 in my A180 and a USB card for
keyboard mouse..,, (and yes these are sitting on my desk)

> But I'm pretty clueless how linux X server finds/talks to a frame buffer.
> For HPUX, the graphics driver supports some ioctl()'s.
> Any references to describe how it works for linux?

The OS specific X code in XFree86 knows several ways to talk to Linux

Memory:

1.	Directly mmap()ing /dev/mem or /dev/kmem to get access to the 
	mmio space of the card and frame buffer memory. 

2.	Mapping the pci space via a kernel frame buffer device (/dev/fb*)

3.	Arbitary other mmap based code that you plug into it (harder to do)


I/O

1.	Use of iopl/ioperm on x86

2.	Use of mmap to map the PCI I/O space regions on different 
	platforms (which doesnt work on some PA kit)

3.	Arbitary other code we plug into it 


For I/O it seems that on things like the A180 the only way to do it is to use
/dev/port and pread/pwrite the file handle for each port I/O. This is slow but
hopefully primarily used for booting the card (XFree 4.0 has a X86 emulator
for booting the BIOS firmware on PCI cards)


For most machines I imagine we would be using mmio and the /dev/fb interface.

Alan



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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] CVS linux Vs. -test10
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To: gibreel@pobox.com (Stephen Zander)
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> Oooh, there's a reason for me to finally get the 712/80 under my desk
> to be more than a foot-rest.  I'll see what I can do about this.
> 
> Note that the likelihood of Debian releasing woody anytime soon is
> vanishingly small, so this dosen't have to happen Right Now.

My experiences with building Red Hat 7 so far are mostly good. I don't think
there will be many actual changes needed to build Debian packages either. I've
made very little that isnt 'use -fPIC' 'dont optimise C++'


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Subject: Re: Question on Linux DMA routines
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"Gunneswara Marripudi" wrote:
> Hi Grant,
> 
> I have a quick question on Linux 2.3 DMA routines.

2.3 is dead. You mean 2.4.


> If I allocate and map memory using pci_alloc_consistent(),
> do I still need to call pci_dma_sync_single() if there is a 
> need to ensure the coherency? The documentation on it
> at DMA-mapping.txt is ambiguous (at least to me). 

No - it's not needed.

> - Consistent DMA mappings which are usually mapped at driver
> 113   initialization, unmapped at the end and for which the hardware should
> 114   guarantee that the device and the cpu can access the data
> 115   in parallel and will see updates made by each other without any
> 116   explicit software flushing.
> 117 
> 118   Think of "consistent" as "synchronous" or "coherent".
> 
> 
> It says that h/w should guarantee the consistency and I'm not sure 
> what if the underlying platform is not fully coherent.

The HW *is* fully coherent when the CPU doesn't cache the pages.
Only systems with PCX-L/L2 CPU (need to) operate this way.
All other platforms have an I/O MMU which manages the coherency.

You might be confused because HPUX doesn't ever use uncached memory
for I/O since it has dma_sync() macro instead. And device driver writers
are "trained" to use that.


grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Subject: RE: [parisc-linux] HP 9000/735-125
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I will go under the assumption that it could be the disks and their possible
age and try and find suitable replacements.

Once I do get disks working is there a "Recepe" on how to get it to boot
from your local drive.

I would figure just copy over the NFS root, but then where do I put the
lifimage so that boot manager can find it.

Until then I'll just keep booting from the network.

--
Steve Moret
smoret@uci.edu

> -----Original Message-----
> From: Richard Hirst [mailto:rhirst@linuxcare.com]
> Sent: Thursday, November 30, 2000 8:11 AM
> To: Steve Moret
> Cc: parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] HP 9000/735-125
>
> I got my 715/75 to boot.  The scsi driver still has problems with my
> CDROM drive, but the disk seems ok.  I ran mke2fs of a 1Gig partition
> a few times and then copied 200MB of files from the network to it.


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With the BiDirectional stuff back in it dies here:

Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
ASP version 20 at 0xf0800000 found.
LED (ASP-style) display at f0800020
parport_gsc.c: initialize bidirectional-mode



Dumping Stack from ccff0000 to ccff0980:
0000 00000000 00000040 00000000 00000000 c027c4ac 00000000 00000000 ffffffff
0020 00000002 00000000 00000000 00000000 00000000 00000000 ffffffff c027c3c4
0040 c027c3c4 00000000 c02b0000 c02b0000 c028160c 00000000 00000000 00000000
0060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 00000000
0080 00000000 c02b0000 c02b0000 00000000 00000000 00000000 c02b0098 c02b0098
00a0 00000000 c02cbc58 00000000 ccff00ac ccff00ac ccff00b4 c011b7e0 00000000
00c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00e0 00000000 00000000 ccff0000 c011e5d0 00000000 00000003 00000000 00000000
0100 0000002f 00000000 00000032 00000000 00000000 00000000 00000000 00000000
0120 00000000 80000000 00000000 00000000 00000000 00000000 00000000 00000000
0140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
01a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
01c0 00000000 00000000 00000000 fffffeff 00000000 ffffffff 00000000 c027d064
01e0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 00800000 05000000
0200 00000000 ffffffff ffffffff ffffffff 00000d00 00000d00 00000400 00000400
0220 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 00007377 61707065
0240 72000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0260 0000d000 c0269054 c0269054 c0141dc0 00020000 ccffeba0 c02237d8 c02369bc
0280 c02db800 00504d6c 00000000 c011ccdc c027c53c 0000d000 c0269054 c027c53c
02a0 eaa9eaa9 08000059 c027c000 c027c4e8 0000000b 00000024 0000003c 0000003e
02c0 c027c000 00000000 c0100288 00000004 00000000 00000023 c02b5eaf 00000000
02e0 c027c000 08000059 eaa9eaa9 000000ff 00000060 00000030 00000060 00000002
0300 002b2080 00000008 002b58c0 c0268000 00000000 023c3460 c02b08c0 00000001
0320 08000000 00000000 00000000 00000000 00856606 00000000 00000000 00000000
0340 42780000 00000000 431c0000 00000000 4471cccc 00000000 000003c7 00000000
0360 fffffde0 fffffde0 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
0380 00000000 00000000 41800000 00000000 00000010 00000010 00000000 00000000
03a0 fffffde0 fffffde0 41000000 00000000 40800000 00000000 fffffde0 fffffde0
03c0 41000000 00000000 fffffde0 fffffde0 40800000 00000000 41000000 00000000
03e0 40300000 00000000 40200000 00000000 40200000 00000000 41800000 fffffde0
0400 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
0420 00000000 00000000 ccff0500 c0103c38 00000000 00000000 00000000 00000000
0440 00000000 00000000 c011cccc c011ccd0 40800000 00000000 00282000 00000000
0460 c0281040 c0281064 00000000 c0281204 00000000 00000000 00000000 ccff0478
0480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
04a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
04c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
04e0 00000000 00000000 00000000 c0103c48 00000000 00000000 00000000 00000000
0500 ccff0000 c028160c 00000000 00000000 00000000 00000000 00000000 00000000
0520 00000000 00000000 00000000 c010029c 00000000 00000000 00000000 00000000
0540 00000000 00000000 00000000 00000000 c02b06c0 ccff0000 c028160c 00000000
0560 c02b0000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0580 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
05a0 00000000 00000000 00000000 c0295098 00000000 00000000 00000000 00000000
05c0 c02b0000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
05e0 00000000 00000000 00000000 c02a4e38 00000000 00000000 00000000 00000000
0600 c02db800 c02cb800 c02ce000 c0268000 c02ca800 00000000 c02b0000 00000000
0620 00000000 00000000 00000000 c02a5678 00000000 00000000 00000000 00000000
0640 c02b0000 c0268000 c02ca800 00000000 c02b0000 ccffec20 00000000 00000000
0660 00000000 00000000 00000000 c02a8ce0 00000000 00000000 00000000 00000000
0680 c02ce000 c0268000 c02ca800 00000000 c02ac6cc c027c6f8 ccf3fee0 00000000
06a0 00000000 00000000 00000000 c010a090 00000000 00000000 00000000 00000000
06c0 00000000 00000000 fffbe000 00000003 00000023 ccf3f6e0 00000000 c02ac394
06e0 c02cae30 00000000 00000000 c010a090 00000000 00000000 00000000 00000000
0700 00000006 c02ac68c c02caef0 ccffb1e0 f0800000 00000014 c0259e84 c0259e88
0720 00000000 00000000 00000000 c02a5ad8 00000000 00000000 00000000 00000000
0740 c02cae30 00000000 ccffb1e0 00000000 f0824000 c027c4dc c0267108 c02670e4
0760 000a5a59 000a5a59 c0295848 c02a8c74 c02cb800 c02ca800 c026e000 c02cae30
0780 c02caef0 c02caef0 f0824800 00000000 00000001 00000000 00000041 00000058
07a0 ffffffff 000a5a59 c0295848 ccff0788 c02cb800 c02ca800 c026e000 00000006
07c0 f0824000 00000058 ccff079c ccffb1e0 00000001 00000000 c0267106 000ff000
07e0 000a5a59 000a5a59 c0295848 c011ccdc c02cb800 c02ca800 c026e000 c02cae30
0800 eaa9eaa9 08000059 c027c000 c027c4e8 0000000b 0000002d 0000003c 0000003e
0820 c027c000 00000001 c02b5eb8 00000004 c02b5e8b 0000002c c02b5eb8 00000000
0840 c027c000 08000059 eaa9eaa9 000000ff 00000060 00000030 00000060 00000002
0860 002b2080 00000008 002b58c0 c0268000 00000000 ccf3ff60 ccffa240 00000001
0880 08000000 00000000 00000000 00000000 00856606 00000000 c0295848 c02db800
08a0 c02cb800 c02ca800 c026e000 f0824800 f0824000 00000058 000003c7 00000000
08c0 fffffde0 fffffde0 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
08e0 00000000 00000000 41800000 c02a8954 00000010 00000010 00000000 00000000
0900 00000058 f0824800 ccf3ff60 ccffa240 ccff0788 00000000 fffffde0 fffffde0
0920 41000000 00000000 fffffde0 c02a8664 40800000 00000000 41000000 00000000
0940 0000000c ccff0788 f0824800 f0824000 ccff0788 00000000 41800000 fffffde0
0960 40000000 00000000 40000000 c02a875c 40800000 00000000 41000000 00000000

High Priority Machine Check (HPMC): Code=1 regs=c026f080 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000100001011
r0-3     00000000 c01dd000 c02a879c ccff0788
r4-7     0000002c ccffa240 f0824800 ffffffdf
r8-11    ffffffff c027c000 00000000 000a5a59
r12-15   000a5a59 000ff000 f00012a0 00000000
r16-19   00000001 08000059 eaa9eaa9 0000000b
r20-23   000000ff 00000041 ccf3f040 0000000b
r24-27   ffffffff f0824800 f0824800 c0268000
r28-31   00000034 00000e80 ccff0980 c012f460
sr0-4    00000000 00000000 00000000 00000000
sr4-8    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c01dd1cc c01dd1d0
 IIR: e840c000    ISR: 00000000  IOR: c02a879c
ORIG_R28: 00000000


And it appears that the LEDs work, however I'm not familiar enough with them
to know what they all mean or if they should or should not blink, glow, or
cause alarming amounts of pain to those who walk by.


--
Steve Moret
smoret@uci.edu

> -----Original Message-----
> From: Helge Deller [mailto:deller@gmx.de]
> Sent: Thursday, November 30, 2000 4:05 AM
> To: Steve Moret
> Cc: parisc-linux@thepuffingroup.com; parisc-linux@thepuffingroup.com
> Subject: RE: [parisc-linux] HP 9000/735-125
>
>
> Hi Steve,
>
> > My mistake! I did a full build with todays CVS and parport didn't die.
> > So
> > somewhere between the 17th and now parport must have been fixed.
>
> I checked in yesterday a modified version of
> /drivers/parport/parport_gsc.c with an "#if 0 ... #endif" in the code.
> Could you try to boot again with "#if 1" (search for the text which says
> something like "enable bidirectional PS/2 mode") and try again ?
> If this hangs your machine I will implement a better work-around.
>
> >
> > Now, maybe you can help me identify my SCSI problem. I don't know if it
> > is
> > because of driver issues or a bad disk (completly likely).
>
> I think Richard Hirst can help you much more with your SCSI-problems than
> me.
>
> NB: Does your chassis LEDs work with the new kernel, and if not, could you
> send me your bootlog (or "dmesg | grep led") ?
>
> Greetings,
>
> 	Helge
>
> --
> Sent through GMX FreeMail - http://www.gmx.net
>


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Xref: news.gmane.org gmane.linux.ports.parisc:8681

Alan Cox wrote:
...
> > All HP graphics for PARISC are memory mapped. Both "GSC" and PCI flavors.
> 
> Yes, but if I want to say put an S3 Trio64 in my A180 and a USB card for
> keyboard mouse..,, (and yes these are sitting on my desk)

As long as everyone plays nicely on the PCI bus, it should work.
I would expect it too.

> The OS specific X code in XFree86 knows several ways to talk to Linux

Thanks for the explanation!


> For I/O it seems that on things like the A180 the only way to do it is to use
> /dev/port and pread/pwrite the file handle for each port I/O.
> This is slow but hopefully primarily used for booting the card

I/O port space is *really* slow under Dino. The problem is two writes
are needed to generate the I/O port transaction and since they must be
atomic - spin_lock_irqsave() is invoked around it. HPUX fundementally
does NOT use I/O port space for anything that is performance sensitive.

> (XFree 4.0 has a X86 emulator for booting the BIOS firmware on PCI cards)

And is this emulator running under parisc-linux now? (!)


thanks again,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Xref: news.gmane.org gmane.linux.ports.parisc:8682

On Thu, Nov 30, 2000 at 09:39:17AM -0800, Steve Moret wrote:
> I will go under the assumption that it could be the disks and their possible
> age and try and find suitable replacements.
> 
> Once I do get disks working is there a "Recepe" on how to get it to boot
> from your local drive.
> 
> I would figure just copy over the NFS root, but then where do I put the
> lifimage so that boot manager can find it.
> 
> Until then I'll just keep booting from the network.

There is a README.INSTALL on the 0.5 beta CD image:

ftp://puffin.external.hp.com/pub/parisc/cd-images/palinux-0.5.iso.gz

Richard


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Subject: Re: [parisc-linux] Congratulations !!!
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> Hello to all You brave people,
> 
> Congratulations to all of You who brought this kernel to life.
> Great job done. I'm really looking forward to what will come...

Just to clarify: The kernel compiles, links, and we can branch to its
entry point.

There is still a lot of work to do before you can install it on your D
class and hope to do anything useful. (I've had a fair number of requests
from people, since the weekend, for a pointer to where they can get the
entire distribution.)

It would perhaps be better to say that it's now taken its first breath,
and will be growing and maturing rather quickly over the next few
months....

Chris


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Grant Grundler wrote:
...
> The HW *is* fully coherent when the CPU doesn't cache the pages.
> Only systems with PCX-L/L2 CPU (need to) operate this way.
> All other platforms have an I/O MMU which manages the coherency.

Correction - PCX-T and older platforms are not coherent and U-bit
isn't available/useable on those machines. Drivers must do their own
cache flushing. sim700 (LASI SCSI) does this and I think Apricot
(LASI LAN) too. I'm suspecting this might be part of the 735 problems.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Thu, Nov 30, 2000 at 04:11:15PM +0000, Richard Hirst wrote:
> I got my 715/75 to boot.  The scsi driver still has problems with my
> CDROM drive, but the disk seems ok.  I ran mke2fs of a 1Gig partition
> a few times and then copied 200MB of files from the network to it.

The CDROM problem is because my cdrom drive rejects all multi-byte
messages after the first byte, and the driver get confused.  I'll
fix that, but I don't expect that particular fix to help you.

Richard


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"Steve Moret" wrote:
> I will go under the assumption that it could be the disks and their possible
> age and try and find suitable replacements.

Possible - sometimes just jumpers are missing or need to be removed.
Make sure disks spinup on their own first.

I'm not sure Linux SCSI disk driver knows how to deal with
"Not ready" and/or send START_UNIT commands. HPUX definitely does.

> Once I do get disks working is there a "Recepe" on how to get it to boot
> from your local drive.

Yes - the /README.INSTALL on the v0.5 ISO image.
Not sure if that's posted elsewhere on www.parisc-linux.org.

> I would figure just copy over the NFS root, but then where do I put the
> lifimage so that boot manager can find it.

The "palo" step does that for you.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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> > I will go under the assumption that it could be the disks and their
> > possible age and try and find suitable replacements.
> 
> Possible - sometimes just jumpers are missing or need to be removed.
> Make sure disks spinup on their own first.
> 
> I'm not sure Linux SCSI disk driver knows how to deal with
> "Not ready" and/or send START_UNIT commands. HPUX definitely does.

The kernel on the v0.5 ISO image did spin up the disk on the SCSI bus when
I tried booting it the first time, right after turning on the machine. It
hangs later, but has no problems at this point... On subsequent tries the
disks were already spinning, of course, so it did nothing...

----------------------------------------------------------------
        Jorge L. deLyra,  Associate Professor of Physics
            The University of Sao Paulo,  IFUSP-DFMA
       For more information: finger delyra@latt.if.usp.br
----------------------------------------------------------------


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On Thursday 30 November 2000 16:49, Jorge L. deLyra wrote:
> OK, rbootd is up and running, the station now establishes instantaneous
> communication with the server. But it says "bad LIF magic" and does not
> boot. I presume I can't just put the precompiled kernel in there. Since
> I cannot cross-compile for the time being (bad HP server disk crash) is
> there a net-boot kernel somewhere that I can download and try?
>
> 							Cheers,

Hi,

Just a thought: are you shure, that you did "make palo" and exported 
palo/lifimage  instead of vmlinux ?

Greetings,

	Helge.


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The most often asked question on this list is "Will my XXX machine run
Linux?"

I'm trying to come up with a dead-simple list of what does and does not
run.  The idea is that people will so easily be able to find the
information that they won't ask on the mailing list.

So, can people have a look over the attached HTML text, and fill in any
blanks? I know I have incorrect and missing information, so please help.

If you happen to have bootlogs kicking around, I'll collect those too. 
That'll help with integrating this all into the hardware database,
although that's a larger and future project.

Please mail the responses back to me <alex@linuxcare.com> and Martin
Hicks <mhicks@linuxcare.com> so we can update the pages.  Please don't
flood this list with tiny updates.

When we have another draft of this, we'll pass it by the mailing list
again.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.
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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
<head>
   <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
   <meta name="GENERATOR" content="Mozilla/4.75 [en] (X11; U; Linux 2.2.13 i686) [Netscape]">
</head>
<body>

<h2>
Will my PA-RISC Machine Run Linux?</h2>

<p><br>This is the most asked question on the parisc-linux mailing list,
and you should look here first for information before asking questions.
<h3>
How do I figure out if my machine will run Linux?</h3>

<p><br>Check out the following list and try and find your machine in it.
<p>If your machine isn't listed, then:
<br>a) See if it exists in the Hardware Database, if it does not, mail
the mailing list
<br>b) Try booting it with Linux, and report back to the mailing list so
we can update this data.
<p><b>32-Bit Machines</b>
<p>These all have 32-bit processors and 32-bit IO subsystems, and will
only run a 32-bit Linux kernel.
<p>First, here's a list of totally unsupported machines: E25, E45, E55,
F10, G40, H20, H50, I70, T500, T600.&nbsp; All these machines contain proprietary
busses, and there is no available documentation for us to get them running.
<br>&nbsp;
<table BORDER COLS=8 WIDTH="100%" NOSAVE >
<tr NOSAVE>
<td WIDTH="100" NOSAVE>Model</td>

<td>Name</td>

<td>Boots</td>

<td>Parallel</td>

<td>Network</td>

<td>SCSI</td>

<td>Serial</td>

<td>Keyboard</td>
</tr>

<tr>
<td>705, 710</td>

<td>Flounder and Bushmaster</td>

<td>?</td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>
</tr>

<tr>
<td>720, 730</td>

<td>Cobra</td>

<td>Yes</td>

<td></td>

<td></td>

<td>Broken</td>

<td>Yes</td>

<td></td>
</tr>

<tr>
<td>725/100</td>

<td>Electra</td>

<td>?</td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>
</tr>

<tr>
<td>725/50</td>

<td>Spectra</td>

<td>?</td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>
</tr>

<tr>
<td></td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>
</tr>

<tr>
<td>712/60, 712/80, 712/80I,&nbsp; 712/100</td>

<td>Gecko</td>

<td>Yes</td>

<td></td>

<td>Yes</td>

<td></td>

<td></td>

<td></td>
</tr>

<tr>
<td>715/33, 715/50, 715/75</td>

<td>Old 715s, Scorpio</td>

<td>Yes[*]</td>

<td></td>

<td>Yes</td>

<td></td>

<td></td>

<td></td>
</tr>

<tr>
<td>715/64, 715/80, 715/100</td>

<td>New 715s, Mirage</td>

<td>Yes</td>

<td></td>

<td>Yes</td>

<td>?</td>

<td></td>

<td></td>
</tr>

<tr>
<td>A180, A180C</td>

<td>Staccato</td>

<td>Yes</td>

<td></td>

<td>Yes</td>

<td>Yes</td>

<td>Yes</td>

<td>N/A</td>
</tr>

<tr>
<td>B180L</td>

<td>Merlin</td>

<td>Yes</td>

<td></td>

<td>Yes</td>

<td>Yes</td>

<td>Yes</td>

<td>?</td>
</tr>

<tr>
<td>B132L</td>

<td>Merlin</td>

<td>Yes</td>

<td></td>

<td>Yes</td>

<td>Yes</td>

<td>Yes</td>

<td>?</td>
</tr>

<tr>
<td>735/125</td>

<td>Outfield&nbsp;</td>

<td>Yes</td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>
</tr>

<tr>
<td>C100, C110</td>

<td>Raven T'</td>

<td>?</td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>
</tr>

<tr>
<td>D200, D220</td>

<td>UL350</td>

<td>?</td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>
</tr>

<tr>
<td>D310, D330, D350, D370</td>

<td></td>

<td>?</td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>
</tr>

<tr>
<td>J200, J210, J210XC</td>

<td>Skyhawk</td>

<td>?</td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>
</tr>

<tr>
<td></td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>
</tr>

<tr>
<td></td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>

<td></td>
</tr>
</table>

<p>[*] Note that network booting on older machines is done through rbootd,
not the usual bootp/tftp mechanism.
<p><b>64-bit capable machines</b>
<p>Right now, run a 32-bit Linux kernel on these.
<p>C160, C160L, C180, C180XP, Raven U
<br>C200+, C240+, Raven+
<br>D270, D280, D370, D380, D390, R380, R390 UL 550
<br>K260, K360, K370
<br>K380 Mohawk
<br>K460, KittyHawk
<br>J282
<p><b>64-bit Only Machines</b>
<p>The following machines will not yet run Linux because they require a
64-bit Linux kernel that doesn't yet work.&nbsp; Patience!
<p>A500
<br>C3000, C3600 Allegro
<br>J2240 SummitHawk
<br>J5000 Forte
<br>L1000-44, L2000-44 Rhapsody
<br>N4000-36 Prelude, N4000-44
<br>&nbsp;
</body>
</html>

--------------C7348040B7823DD93898930E--


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Subject: Re: [parisc-linux] HP 9000/735-125
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On Thursday 30 November 2000 19:21, Helge Deller wrote:
> On Thursday 30 November 2000 16:49, Jorge L. deLyra wrote:
> > OK, rbootd is up and running, the station now establishes instantaneous
> > communication with the server. But it says "bad LIF magic" and does not
> > boot. I presume I can't just put the precompiled kernel in there. Since
> > I cannot cross-compile for the time being (bad HP server disk crash) is
> > there a net-boot kernel somewhere that I can download and try?
> >
> > 							Cheers,
>
> Hi,
>
> Just a thought: are you shure, that you did "make palo" and exported
> palo/lifimage  instead of vmlinux ?

oops, 
I just saw, that you currently _can_not_ cross-compile..... :-(
But if you still want to download a kernel I can make one available for 
you.....

Helge.


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On Thursday 30 November 2000 18:50, Steve Moret wrote:
> With the BiDirectional stuff back in it dies here:
>
> Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
> POSIX conformance testing by UNIFIX
> ASP version 20 at 0xf0800000 found.
> LED (ASP-style) display at f0800020
> parport_gsc.c: initialize bidirectional-mode
>
[oops msg deleted]

Yup, that was what I thought !
I will try to come up with a clean fix in the next few hours...

>
> And it appears that the LEDs work, however I'm not familiar enough with
> them to know what they all mean or if they should or should not blink,
> glow, or cause alarming amounts of pain to those who walk by.

The current code should let your heartbeat-LED blink two times per second and 
LAN-TX, LAN-RCV and DISK-IO-LED should blink each after another...

Greetings,

	Helge


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> > Just a thought: are you shure, that you did "make palo" and exported
> > palo/lifimage  instead of vmlinux ?

I just did the naive thing and put the precompiled kernel from the site
there. According to the docs on the NFSROOT that might work, I mean, it
says there that there are two alternatives, with and without palo...

> oops, 
> I just saw, that you currently _can_not_ cross-compile..... :-(

Yes, we are working towards this, but I read in the docs that for the time
being you can only cros-compile the kernel on HP-UX, so we must first fix
our HP-UX systems here. In any case, it will take a little while until we
tool up to do the cross-compilation, no matter where...

> But if you still want to download a kernel I can make one available for 
> you.....

This would be very nice! If you do that, please tell me where I can get
it. It might be a goot idea to have this net-bootable lifimage version of
the kernel on the ftp site side-by-side with the precompiled kernel which
is already there, don't you think?

						Many thanks,

----------------------------------------------------------------
        Jorge L. deLyra,  Associate Professor of Physics
            The University of Sao Paulo,  IFUSP-DFMA
       For more information: finger delyra@latt.if.usp.br
----------------------------------------------------------------


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Thanks for all the helpful suggestions for data types.  Here's
my current plan so far as I know it, plus some questions/gripes.  I
have no current plans to break user space, though a new glibc
should be produced eventually because of changes to struct sigcontext.
I hope to make and test most(3) of these changes today.  Let me know
if anything is flatly stupid -- I already know some choices are not
ideal because ideal is impossible (off_t for example).

						# bits
					parisc		parisc64
					------------------------
__kernel_off_t (long)			32		64(1)
__kernel_size_t	(unsigned long)		32		64(1)
__kernel_daddr_t (int)			32		32(2)
__kernel_time_t (long)			32		64(1,3)
__kernel_suseconds_t (long)		32		64(1,3)
sigset_t.sig[] (long)			32		64(4)
__kernel_ino_t (unsigned int)		32		32(5)
elf.h:gregs_t				DEBUGGER ISSUE(6)

(1)	A difference from the current posix_types.h

(2)	Appears to be used for an on-media data structure.  mips64
	has it 64 bits which is probably wrong.

(3)	I'm currently using 32-bit time_t and suseconds_t for my 64-bit
	kernel and it appears to work just fine, and saves lots of syscall
	wrapper work.  However the other ports use 'long' so there's
	probably a good reason (or hidden assumptions in kernel code)
	for it.  Those are
	probably not the best reasons (I mean, why should a type used
	to describe milliseconds (timeval.tv_usec) be 64 bits?  Oh well,
	here come lots more 32/64 syscall wrappers to handle timevals.

	** NOTE ** I may not make the changes to these two types
	immediately due to the number of (uninteresting) syscall
	wrappers required (I'd rather write the networking ones first).
	Sorry this means posix_types.h may change more than once.

(4)	I thought I could get away with making this 'int' and therefore
	32 bits everywhere.  It would save several 32/64 syscall
	wrappers (and increase speed).  However this little piece
	in kernel/signal.c is a hard-coded assumption that .sig[] is
	an array of long, and was a bitch to find:

		unsigned long i, *s, *m, x;
		s = tsk->pending.signal.sig;

(5)	This looks to be 32 bits everywhere, even on 64-bit archs,
	with the single exception of sparc.  Although this little
	snippet in <linux/nfs_fs.h>:

	static inline ino_t
	nfs_fileid_to_ino_t(u64 fileid)
	{
		ino_t ino = (ino_t) fileid;
		if (sizeof(ino_t) < sizeof(u64))
			ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8;
		return ino;
	}
	
	clearly shows a 32-bit ino_t is currently a (potential) problem,
	it seems to me this is a Linux problem not a parisc problem, so
	it seemed better to follow the lead of the other ports.

(6)	Debugger is going to care about structs in elf.h, which are not
	identical narrow and wide at the present time.

		-Paul Bame


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I'm in the process of planning a special event with Hewlett-Packard for
Linux Expo with respect to the PA-RISC Porting Project. I will post
further details shortly, however, to help in the planning, I need to know
how many developers will be around.

The tentative date and time for the event will be around noon on
Wednesday, May 19th -- the tutorial day before the actual conference
begins.

So, If you are attending Linux Expo, please reply to me privately as soon
as possible. Also include which days you will be there in case it becomes
necessary to reschedule.

Chris


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Question on Linux DMA routines
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To: Grant Grundler <grundler@cup.hp.com>
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On Thu, Nov 30, 2000 at 10:01:13AM -0800, Grant Grundler wrote:
> Grant Grundler wrote:
> ...
> > The HW *is* fully coherent when the CPU doesn't cache the pages.
> > Only systems with PCX-L/L2 CPU (need to) operate this way.
> > All other platforms have an I/O MMU which manages the coherency.
> 
> Correction - PCX-T and older platforms are not coherent and U-bit
> isn't available/useable on those machines. Drivers must do their own
> cache flushing. sim700 (LASI SCSI) does this and I think Apricot
> (LASI LAN) too. I'm suspecting this might be part of the 735 problems.

That's right, sim700 and apricot call pci_alloc_consistent() and if
that fails they fall back to get_free_pages() and explicit cache
flushing and invalidating with dma_cache_wback/dma_cache_inv calls.
pci_alloc_consistent() should fail on pcx, pcxs and pcxt according
to setup.c.

When sim700 complains at startup that it "Couldn't get consistent
shared memory", it means pci_alloc_consistent() failed and therefore
you have one of these older CPUs, and it will drop back to doing its
own cache management.

At startup the driver does a test where it writes memory, flushes
it, writes something else to the same location, then gets the scsi chip
to read that location.  If the scsi chip gets the old data, the driver
says "WARNING: target data areas are not dma coherent".  This is
just for information, it has no effect on how the driver operates.

Richard


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] time_t, size_t, off_t, ...
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> (3)	I'm currently using 32-bit time_t and suseconds_t for my 64-bit
> 	kernel and it appears to work just fine, and saves lots of syscall
> 	wrapper work.  However the other ports use 'long' so there's
> 	probably a good reason (or hidden assumptions in kernel code)
> 	for it.  Those are

time_t itself is normally a long because historically (pre ANSI/POSIX) back
when men where men and adb was the coolest debugger on the planet it was
the case that time() foo was a function using longs

[Random historical aside - very early C didnt support passing long as an 
argument hence time(&foo) not foo=time()]

I know of no kernel reason. If you are using a 1KHz system clock then it
may be handy to up the loop time for the counter to above 50 days by using
long.

> (4)	I thought I could get away with making this 'int' and therefore
> 	32 bits everywhere.  It would save several 32/64 syscall
> 	wrappers (and increase speed).  However this little piece
> 	in kernel/signal.c is a hard-coded assumption that .sig[] is
> 	an array of long, and was a bitch to find:
> 
> 		unsigned long i, *s, *m, x;
> 		s = tsk->pending.signal.sig;

Eep. Its not unreasonable to suggest to Linus that gets fixed 8)

> (5)	This looks to be 32 bits everywhere, even on 64-bit archs,
> 	with the single exception of sparc.  Although this little
> 	snippet in <linux/nfs_fs.h>:
> 
> 	static inline ino_t
> 	nfs_fileid_to_ino_t(u64 fileid)
> 	{
> 		ino_t ino = (ino_t) fileid;
> 		if (sizeof(ino_t) < sizeof(u64))
> 			ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8;
> 		return ino;
> 	}
> 	
> 	clearly shows a 32-bit ino_t is currently a (potential) problem,
> 	it seems to me this is a Linux problem not a parisc problem, so
> 	it seemed better to follow the lead of the other ports.

On the 64bit port _please_ use a 64bit ino_t. It'll possibly tickle the odd
other problem but post 2.4 the main kernel has to move to 64bit ino_t to make
NFSv3 and XFS sanely work. That may well let you relax and look smug as the
rest of the world suffers 8)

Alan


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Subject: Re: [parisc-linux] XFree status
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> > (XFree 4.0 has a X86 emulator for booting the BIOS firmware on PCI cards)
> 
> And is this emulator running under parisc-linux now? (!)

It builds, it seems to run its tests (ignoring the fact I have in/out ops
nulled out). It is already used on other platforms. It might be interesting
to use it in the PA bootloader too 8)

Alan


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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] HP 9000/735-125
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On Thursday 30 November 2000 19:37, Helge Deller wrote:
> On Thursday 30 November 2000 18:50, Steve Moret wrote:
> > With the BiDirectional stuff back in it dies here:
> >
> > Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
> > POSIX conformance testing by UNIFIX
> > ASP version 20 at 0xf0800000 found.
> > LED (ASP-style) display at f0800020
> > parport_gsc.c: initialize bidirectional-mode
>
> [oops msg deleted]
>
> Yup, that was what I thought !
> I will try to come up with a clean fix in the next few hours...

I've just committed a fix which should work on both (ASP & LASI)...
Would you mind to test this stuff again ?

Thanks,

	Helge.


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From: Kailashnath V Rampure <kailasr@webcash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Is there any sqlnet for Linux on HP
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Hi,

I need to connect to database from the HP linux box to oracle. Is there any 
sqlnet client that can be installed on the server.

Regards
Kailas


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From: Grant Grundler <grundler@cup.hp.com>
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"Jorge L. deLyra" wrote:
> > oops, 
> > I just saw, that you currently _can_not_ cross-compile..... :-(
> 
> Yes, we are working towards this, but I read in the docs that for the time
> being you can only cros-compile the kernel on HP-UX,

That's definitely wrong. Where did you read this?
(I would like fix the reference)

Those of us still cross compiling are using x86-linux hosts.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Is there any sqlnet for Linux on HP
Date: Thu, 30 Nov 2000 16:26:42 -0500
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Kailashnath V Rampure wrote:
> I need to connect to database from the HP linux box to oracle. Is there any
> sqlnet client that can be installed on the server.

I'm assuming you mean HP PA-RISC Linux, not HP IA32/64 Linux.

No.  The only applications right now for parisc-linux are open source
ones, and we haven't touched any SQL client libraries.

Conceivably the DBI stuff should work, but I don't think anyone's really
tried.

- alex

- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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To: "Jorge L. deLyra" <delyra@latt.if.usp.br>
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Xref: news.gmane.org gmane.linux.ports.parisc:8702

On Thu, Nov 30, 2000 at 11:19:30AM +0000, Richard Hirst wrote:
> On Thu, Nov 30, 2000 at 08:58:22AM -0200, Jorge L. deLyra wrote:
> > OK, here goes. I want to congratulate you all on this effort. We have five
> > of these HP-9000 stations here, quite old by now. They used to be our main
> > number crunching force. They are wonderfully built hardware in bad need of
> > a wonderful system on them!  |:-)
> 
> > Serial driver version 5.01 (2000-05-29) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
> > 
> > Dumping Stack from c4f9c000 to c4f9cbc0:
> 
> This has been reported on 715/50 (Robert Duncan) and 715/75 (me) round
> about November 15th.  At the time I tried a current cvs kernel on my
> 715/75 and it was even worse (IIRC).  I'll have another look at it.

I don't get that problem (crash after "Serial driver version...")
with the latest cvs kernel source.

Richard


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From: Paul Bame <bame@noam.fc.hp.com>
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= time_t itself is normally a long because historically (pre ANSI/POSIX) back
= when men where men and adb was the coolest debugger on the planet it was
= the case that time() foo was a function using longs
= 
= [Random historical aside - very early C didnt support passing long as an 
= argument hence time(&foo) not foo=time()]

I cut my Unix teeth on pdp11/v6-7 -- counts as very early I think :-)

= I know of no kernel reason. If you are using a 1KHz system clock then it
= may be handy to up the loop time for the counter to above 50 days by using
= long.

I'm setting clock_t to 64 bits on wide kernel FYI, but will keep time_t
and suseconds_t at 32 bits until there's a problem.  Won't effect
32-bit userspace if it has to change.

= > (4)	I thought I could get away with making sigset_t.sig int[] therefore
= > 	32 bits everywhere.  It would save several 32/64 syscall
= > 	wrappers (and increase speed).  However this little piece
= > 	in kernel/signal.c is a hard-coded assumption that .sig[] is
= > 	an array of long, and was a bitch to find:
= > 
= > 		unsigned long i, *s, *m, x;
= > 		s = tsk->pending.signal.sig;
= 
= Eep. Its not unreasonable to suggest to Linus that gets fixed 8)

Yeah, too bad I'm too much of a wimp to sign up for l-k -- already get
more e-mail than I read :-(  

= On the 64bit port _please_ use a 64bit ino_t. It'll possibly tickle the odd
= other problem but post 2.4 the main kernel has to move to 64bit ino_t to make
= NFSv3 and XFS sanely work. That may well let you relax and look smug as the
= rest of the world suffers 8)

Ok, I'll use 64-bit ino_t on parisc64.

	-P


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Subject: Re: [parisc-linux] HP 9000/735-125
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> > Yes, we are working towards this, but I read in the docs that for the time
> > being you can only cros-compile the kernel on HP-UX,
> 
> That's definitely wrong. Where did you read this?
> (I would like fix the reference)

It is on the nfsroot howto linked from the home page of the project:

http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/02-Feb/0069.html

<quote>
STEP 1. KERNEL BUILDING

Get the latest linux-2.3 tree from CVS.

a) If you use the standard boot loader

Edit DEFAULT_COMMANDLINE in linux-2.3rch/parisc/boot/boot_code/ipl_c.c
to read:

        "vmlinux HOME=/TERM=LINUX root=/dev/nfs nfsroot=10.0.0.1"

b) If you use PALO

Edit the echo line in palo/mklifimage to read

        "vmlinux HOME=/TERM=LINUX root=/dev/nfs nfsroot=10.0.0.1"

In both cases replace 10.0.0.1 with the IP address of your NFS server.

Copy the .config included below to the root of the linux source tree.

make oldconfig
make dep
make clean
make Image (Or make palo, if you use Paul's loader)
Due to linker issues cross compiling is still not possible. I.e. you
have to build on HP/UX. 
</quote>

I suppose this is old...

> Those of us still cross compiling are using x86-linux hosts.

Wonderful, that makes it a lot easier...		Thanks,

----------------------------------------------------------------
        Jorge L. deLyra,  Associate Professor of Physics
            The University of Sao Paulo,  IFUSP-DFMA
       For more information: finger delyra@latt.if.usp.br
----------------------------------------------------------------


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I am getting following errors even from the latest binutils and
parisc-linux-gcc. Are there any special LDFLAGS that one needs to use ?

						-pkd

I have been able to hack it to get in virtual mode. Just thought
of compiling with latest cross compiling tools ..rather than that
strange combination of gcc on HP-UX and HP's linker..


parisc-linux-ld -L. -R 0x100000 -N -S rom_interface.o setup.o utils.o
strutils.o bcopy.o main.o io.o -l milli -o vmlinux
parisc-linux-ld: can not size stub section: Bad value
rom_interface.o: In function `cout_putc':
rom_interface.o($CODE$+0xe4): undefined reference to `$$dyncall'
rom_interface.o: In function `bootdev_sread':
rom_interface.o($CODE$+0xe0): undefined reference to `$$dyncall'
rom_interface.o: In function `pdc_call':
rom_interface.o($CODE$+0x118): undefined reference to `$$dyncall'
main.o: In function `parisc_init':
main.o($CODE$+0x208): undefined reference to `$$divU'
make: *** [vmlinux] Error 1




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"Jorge L. deLyra" wrote:

> It is on the nfsroot howto linked from the home page of the project:
> 
> http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/02-Feb/0069.html

Ok. I'm not going to touch the archives.
I can update the link if someone provides the content.
Any volunteers to rewrite the NFS root howto and bring it up to date?

> I suppose this is old...

Exactly.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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= a) If you use the standard boot loader
= 
= Edit DEFAULT_COMMANDLINE in linux-2.3rch/parisc/boot/boot_code/ipl_c.c
= to read:
= 
=         "vmlinux HOME=/TERM=LINUX root=/dev/nfs nfsroot=10.0.0.1"

The boot_code directory should be gone -- that stuff is obsolete.

= b) If you use PALO

PALO is the only current bootloader 

= Edit the echo line in palo/mklifimage to read
= 
=         "vmlinux HOME=/TERM=LINUX root=/dev/nfs nfsroot=10.0.0.1"
= 
= In both cases replace 10.0.0.1 with the IP address of your NFS server.
= 
= Copy the .config included below to the root of the linux source tree.

make oldconfig or make config, without a .config to start with, works
fine just as it does with x86

= make oldconfig
= make dep
= make clean
= make Image (Or make palo, if you use Paul's loader)
Must be 'make palo'
= Due to linker issues cross compiling is still not possible. I.e. you
= have to build on HP/UX. 
= </quote>
= 
= I suppose this is old...
= 
= > Those of us still cross compiling are using x86-linux hosts.
= 
= Wonderful, that makes it a lot easier...		Thanks,
= 
= ----------------------------------------------------------------
=         Jorge L. deLyra,  Associate Professor of Physics
=             The University of Sao Paulo,  IFUSP-DFMA
=        For more information: finger delyra@latt.if.usp.br
= ----------------------------------------------------------------
= 
= ---------------------------------------------------------------------------
= To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
= `unsubscribe' as the subject.
= 
= 
= 


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Grant Grundler wrote:
> "Jorge L. deLyra" wrote:
> > It is on the nfsroot howto linked from the home page of the project:
> > http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/02-Feb/0069.html
> 
> Ok. I'm not going to touch the archives.
> I can update the link if someone provides the content.
> Any volunteers to rewrite the NFS root howto and bring it up to date?

Yes!  I'm redoing the FAQ, and will make sure it all gets a review.

However, I don't actually know that NFS Root needs to be included in the
parisc-linux specific documentation, since we don't have to use nfsroot
anymore.  There's a generic NFSROOT HOWTO we can refer to.

We really only put that in there for when we couldn't write to our local
disks.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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> > Ok. I'm not going to touch the archives.
> > I can update the link if someone provides the content.
> > Any volunteers to rewrite the NFS root howto and bring it up to date?
> 
> Yes!  I'm redoing the FAQ, and will make sure it all gets a review.

The configure and build for glibc needs updating.  The compiler to
use has to be set with the environment variable CC or by some other
means.  There are also some configure parameters like --PREFIX which
should be lower case.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: [parisc-linux] pa reload problem
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>,
        Jeffrey A Law <law@cygnus.com>
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Hi Dave, Jeff,
  This little testcase triggers a bug on hppa64.  It's been around for
quite a while, so it's not something due to Dave's recent changes.

*******
extern void foo (int);
extern unsigned int cpu_hz;

int hppa_dp_bug (void)
{
  foo (42);
  return (5 * ((unsigned long)cpu_hz / 1000000UL));
}
*******

-O2 generates code like

        b,l foo,%r2
        copy %r27,%r4
        addil LT'cpu_hz,%r4	! know r27 trashed in call, so use r4
        ldd RT'cpu_hz(%r1),%r1
        ldd -144(%r30),%r2
        ldw 0(%r1),%r19
        addil LT'L$C0000,%r27	! oops, should be using r4
        ldd RT'L$C0000(%r1),%r1

The bad code codes from config/pa/pa.c:legitimize_pic_address

  if (GET_CODE (orig) == SYMBOL_REF)
    {
      if (reg == 0)
	abort ();

      if (flag_pic == 2)
	{
	  emit_move_insn (reg,
			  gen_rtx_PLUS (word_mode, pic_offset_table_rtx,
					gen_rtx_HIGH (word_mode, orig)));

To fix the problem, it seems to me that we should be testing whether
pic_offset_table_rtx is valid at this point, and if not, use the saved reg
instead.  I'm not exactly sure how to go about testing whether r27 is
valid here, and I'm sure one of you can point me in the right direction.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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On Thu, 30 Nov 2000, Paul Bame wrote:

> (6)	Debugger is going to care about structs in elf.h, which are not
> 	identical narrow and wide at the present time.

I'm more concerned about the fact that quite a few registers of interest
are missing from elf_gregset_t

-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] Is there any sqlnet for Linux on HP
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> I'm assuming you mean HP PA-RISC Linux, not HP IA32/64 Linux.
> 
> No.  The only applications right now for parisc-linux are open source
> ones, and we haven't touched any SQL client libraries.
> 
> Conceivably the DBI stuff should work, but I don't think anyone's really
> tried.

presumably the DBD Oracle library still links the the oracle sqlnet
libraries, so i doubt this will work.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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>         b,l foo,%r2
>         copy %r27,%r4
>         addil LT'cpu_hz,%r4	! know r27 trashed in call, so use r4
>         ldd RT'cpu_hz(%r1),%r1
>         ldd -144(%r30),%r2
>         ldw 0(%r1),%r19
>         addil LT'L$C0000,%r27	! oops, should be using r4
>         ldd RT'L$C0000(%r1),%r1

It looks to me like this happens because the register life analysis in
pass 13 decides that r27 (dp) is dead.  This causes combine to delete the
insn that restores r27 after the call to foo and use the value saved
in r4 as a proxy for dp.

(insn 16 14 21 (set (reg:DI 27 %r27)
        (reg:DI 4 %r4)) 123 {movstrsi_internal+11} (nil)
    (expr_list:REG_DEAD (reg:DI 4 %r4)
	(nil)))

(insn 21 16 23 (set (reg:DI 68)
	(plus:DI (reg:DI 27 %r27)
	    (high:DI (symbol_ref:DI ("cpu_hz"))))) 81 {post_std+3} (insn_list 16 (nil))
     (expr_list:REG_DEAD (reg:DI 27 %r27)
	(nil)))

The const_int's which follow haven't been expanded at this point.  Thus,
the life analysis can't tell that r27 is still needed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Fri, 1 Dec 2000, John David Anglin wrote:

> >         b,l foo,%r2
> >         copy %r27,%r4
> >         addil LT'cpu_hz,%r4	! know r27 trashed in call, so use r4
> >         ldd RT'cpu_hz(%r1),%r1
> >         ldd -144(%r30),%r2
> >         ldw 0(%r1),%r19
> >         addil LT'L$C0000,%r27	! oops, should be using r4
> >         ldd RT'L$C0000(%r1),%r1
> 
> It looks to me like this happens because the register life analysis in
> pass 13 decides that r27 (dp) is dead.  This causes combine to delete the
> insn that restores r27 after the call to foo and use the value saved
> in r4 as a proxy for dp.

Yes.

> (insn 16 14 21 (set (reg:DI 27 %r27)
>         (reg:DI 4 %r4)) 123 {movstrsi_internal+11} (nil)
>     (expr_list:REG_DEAD (reg:DI 4 %r4)
> 	(nil)))
> 
> (insn 21 16 23 (set (reg:DI 68)
> 	(plus:DI (reg:DI 27 %r27)
> 	    (high:DI (symbol_ref:DI ("cpu_hz"))))) 81 {post_std+3} (insn_list 16 (nil))
>      (expr_list:REG_DEAD (reg:DI 27 %r27)
> 	(nil)))
> 
> The const_int's which follow haven't been expanded at this point.  Thus,
> the life analysis can't tell that r27 is still needed.

Exactly.  So how is the code in pa.c to know that PIC_OFFSET_TABLE_REGNUM 
has been clobbered - and should use PIC_OFFSET_TABLE_REGNUM_SAVED instead?
Using the saved version should be safe as it is a fixed reg.

Or is a better solution to simply ensure that r27 never dies?  I'm
thinking of ABI and (non-gnu) linker considerations.  eg. DLTIND21L relocs
not involving r27 may cause something to barf.

Alan
-- 
Linuxcare.  Support for the Revolution.


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Alan Cox wrote:
> For I/O it seems that on things like the A180 the only way to do it is to use
> /dev/port and pread/pwrite the file handle for each port I/O.

Alan,
Why do you think only I/O port space can be used for XFree86?
Is the BIOS/x86 emulator wanting to talk to VGA registers the issue?

jsm tells me VGA MMIO lives at 0xA0000.
Dino only forwards 0xf0800000 through FF80_0000-1 to the PCI bus below.
(See section 7.9 "Accessing PCI Memory Space" in dino3.pdf).

jsm pointed out VGA MMIO is available on Astro/Ike chip sets.
I'm pretty sure this feature isn't used under HPUX.
Requires poking Astro to enable it.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Tue, 4 May 1999, Kumar wrote:
> I am getting following errors even from the latest binutils and
> parisc-linux-gcc. Are there any special LDFLAGS that one needs to use ?
> 						-pkd
> 
> parisc-linux-ld -L. -R 0x100000 -N -S rom_interface.o setup.o utils.o
> strutils.o bcopy.o main.o io.o -l milli -o vmlinux
> parisc-linux-ld: can not size stub section: Bad value
> rom_interface.o: In function `cout_putc':
> rom_interface.o($CODE$+0xe4): undefined reference to `$$dyncall'
> rom_interface.o: In function `bootdev_sread':
> rom_interface.o($CODE$+0xe0): undefined reference to `$$dyncall'
> rom_interface.o: In function `pdc_call':
> rom_interface.o($CODE$+0x118): undefined reference to `$$dyncall'
> main.o: In function `parisc_init':
> main.o($CODE$+0x208): undefined reference to `$$divU'
> make: *** [vmlinux] Error 1
> 

Hm.  I don't get this at all... it certainly links for me.  I do get a lot
of errors with the linker itself, but nothing fatal.

Are you using the pre-built cross compilers? If so, which ones?

- Alex


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> > For I/O it seems that on things like the A180 the only way to do it is to use
> > /dev/port and pread/pwrite the file handle for each port I/O.
> 
> Why do you think only I/O port space can be used for XFree86?

The initial card bring up is done as if it was an ISA device (PCI bus 
has hacks for this). The emulator will use entirely I/O cycles to bring the
card up in most cases.

> Is the BIOS/x86 emulator wanting to talk to VGA registers the issue?

To start with. Not all PC devices have MMIO at all.

> jsm tells me VGA MMIO lives at 0xA0000.

That is the frame buffer memory.

> Dino only forwards 0xf0800000 through FF80_0000-1 to the PCI bus below.
> (See section 7.9 "Accessing PCI Memory Space" in dino3.pdf).

Thats ok. PCI has BAR{n} registers to set base addresses. The rest is down to
lying in the correct way to everybody concerned

So we just need to set it up so that the PCI mapping of the registers is 
put in the F080->FF80 range, and that XFree is told to mmap F080->FF80 range
addresses but believing they are 0->n ranges.

That kind of PCI fixup is quite doable. The older Alphas for example have
byte, word and long access windows (the early alphas had no byte operations
internally or at bus level) which was far worse.

Alan


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From: Kai Walter <KaiW@intec-ag.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/33 hangs after request_irq(259,c01ecbec, 0x0, asp, c0fee080)
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This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.

------_=_NextPart_001_01C05B9F.650DBA20
Content-Type: text/plain;
	charset="ISO-8859-1"

Hi
 
got our 715/33 up with rbootd and Image-20000803. After the
"request_irq(259,c01ecbec, 0x0, asp, c0fee080)" it stops booting/responding.
Should I have a special Image for this machine ?
 
Devices found are Stinger Optional Graphics, Scorpio Jr. Core
BA,SCSI,LAN,HIL,RS-232,Centronics,Audio,(715/33) and (1).
 
Thanks
Kai

------_=_NextPart_001_01C05B9F.650DBA20
Content-Type: text/html;
	charset="ISO-8859-1"

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1">


<META content="MSHTML 5.50.4522.1800" name=GENERATOR></HEAD>
<BODY>
<DIV><SPAN class=077405913-01122000><FONT face=Arial 
size=2>Hi</FONT></SPAN></DIV>
<DIV><SPAN class=077405913-01122000><FONT face=Arial 
size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=077405913-01122000><FONT face=Arial size=2>got our 715/33 up 
with rbootd and Image-20000803. After&nbsp;the "request_irq(259,c01ecbec, 0x0, 
asp, c0fee080)" it stops booting/responding. Should I have a special Image for 
this machine ?</FONT></SPAN></DIV>
<DIV><SPAN class=077405913-01122000><FONT face=Arial 
size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=077405913-01122000><FONT face=Arial size=2>Devices found are 
Stinger Optional Graphics, Scorpio Jr. Core 
BA,SCSI,LAN,HIL,RS-232,Centronics,Audio,(715/33) and (1).</FONT></SPAN></DIV>
<DIV><SPAN class=077405913-01122000><FONT face=Arial 
size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=077405913-01122000><FONT face=Arial 
size=2>Thanks</FONT></SPAN></DIV>
<DIV><SPAN class=077405913-01122000><FONT face=Arial 
size=2>Kai</FONT></SPAN></DIV></BODY></HTML>

------_=_NextPart_001_01C05B9F.650DBA20--


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715/33 hangs after request_irq(259,c01ecbec, 0x0, asp, c0fee080)
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Xref: news.gmane.org gmane.linux.ports.parisc:8719

On Fri, Dec 01, 2000 at 03:02:51PM +0100, Kai Walter wrote:
> Hi
>  
> got our 715/33 up with rbootd and Image-20000803. After the
> "request_irq(259,c01ecbec, 0x0, asp, c0fee080)" it stops booting/responding.
> Should I have a special Image for this machine ?

You probably need a new kernel.  There was a problem with the ASP
parallel port driver on older machines.  I believe it is fixed now.

Richard


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From: Xavier Debacker <xavier.debacker@esiee.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] sti rom access on B132/B180
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Hi everyone!

i'm trying to find the sti rom...

well, unlike the 712,715 and 725, the address is not in the pdc.

for sgc and gsc based graphic cards, the sti rom has to be available at
the base hpa, which can be one of those addresses: 0xf4000000,
0xf6000000, 0xf8000000, or 0xfa000000.

the bios indicates that the graphics are at 0xf8000000

the other memory spaces are unaccessible, that's ok. 
but the problem is that 0xf8000000 is full of zeros (no rom)

two possibilies then:
- pdc has relocated the sti rom: impossible since kernel doesn't do any
PDC relocation.
- it's pci based card, so the sti rom must be accessible through the pci
expansion rom space and optionally, the base hpa.

so the questions are:
how can i access the pci expansion rom (do you have doc?)?
or do you have any other idea?

thanks for your help!

ESIEE Team.


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From: "Jorge L. deLyra" <delyra@latt.if.usp.br>
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Subject: [parisc-linux] Net boot image.
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I saw on the list that someone had managed to boot using Image-20000803 so
I tried to net boot our 735-125 with it and it worked. I mean, the netboot
part, the kernel hangs at the same point as before: ASP. The ftp site is a
bit confusing, it is hard to know what is what in there. In any case, this
image is huge, almost 7 MB, it looks like the ISO image so far as "file"
shows. I got curious: why is it so large, more than 3 times the kernel?

----------------------------------------------------------------
        Jorge L. deLyra,  Associate Professor of Physics
            The University of Sao Paulo,  IFUSP-DFMA
       For more information: finger delyra@latt.if.usp.br
----------------------------------------------------------------


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Xavier Debacker wrote:
> the bios indicates that the graphics are at 0xf8000000

s/bios/PDC/

> - it's pci based card, so the sti rom must be accessible through the pci
> expansion rom space and optionally, the base hpa.

The built-in graphics for B/C-class w/PCX-L2 CPU are *not* PCI devices.
No PCI expansion ROM.

[ In private exchange, Xavier confirmed the device in question is:
  Gecko GSC Core Graphics (10) at 0xf8000000...
]

And I have to confess out of ignorance I broke PCI Expansion ROM
support for A500.  I'll fix it in the near future.
PCI expansion ROM support should work on all other platforms.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Friday 01 December 2000 18:12, Jorge L. deLyra wrote:
>I saw on the list that someone had managed to boot using Image-20000803 so
>I tried to net boot our 735-125 with it and it worked. I mean, the netboot
>part, the kernel hangs at the same point as before: ASP. 

Hi Jorge,

The ASP-parport-problem was fixed yesterday. You should try a newer kernel, 
or cross-compile yourself a new one.

Greetings,

 Helge


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On Fri, 1 Dec 2000, Richard Hirst wrote:

> Hi Alan,
>   I think I've found a case where it calls an external function with
> dp corrupt, sym53c8xx.c again, in ncr_setsync().  Don't know if this
> is relevant given what you now know about the bug.
> 
> .L2977:
>         ldh 66(%r3),%r28
>         extrw,u %r28,31,16,%r19
>         extrw,u %r19,30,31,%r26
>         copy %r19,%r25
>         add,l %r21,%r26,%r26
>         .IMPORT $$divU,MILLICODE
>         b,l $$divU,%r2			<< stub will corrupt dp
>         ldi 2000,%r20
>         cmpb,<< %r20,%r19,.L2978
>         extrd,u %r29,63,32,%r5
>         ldh 1688(%r6),%r20
>         ldi 32,%r19
>         cmpb,= %r19,%r20,.L2978
>         ldi 33,%r19
>         cmpb,=,n %r19,%r20,.L2978
>         ldd 1632(%r6),%r26
>         ldo -16(%r30),%r29
>         b,l _gsc_readb,%r2		<< enters stub with wrong dp
>         ldo 78(%r26),%r26
>         copy %r4,%r27
>         ldd 1632(%r6),%r25
> 
> I hope I'm not supposed to do anything special with that $$divU call,

Unfortunately, I think you are supposed to.  All the $$ routines are from
the millicode library, and are treated specially by the linker.  When
doing a final link, these functions are never supplied by a shared
library, but must come from a static lib like libgcc.a, or
libmilli.a.  This has the effect of never calling these routines via the
.plt, and so dp is preserved.  gcc isn't doing anything wrong here.

If you use a long branch stub that only trashes r1, you should be OK.
_Don't load dp for these routines!  (I hope all libmilli routines are
re-entrant - if not, we'd probably have weird kernel crashes...)

Note that all of the above applies to 32-bit modutils too.

cc:d to the mailing list in case any of the above needs correcting.

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: pa reload problem
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> Or is a better solution to simply ensure that r27 never dies?  I'm
> thinking of ABI and (non-gnu) linker considerations.  eg. DLTIND21L relocs
> not involving r27 may cause something to barf.

Here is a patch that I think resolves the problem.  The principal fix is
not to define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED.  The reason for not
defining this is the call expander explicitly restores the pic offset register
after each call.  Thus, I think we can lie about the register being
clobbered.

When PIC_OFFSET_TABLE_REG_CALL_CLOBBERED is not defined and 
PIC_OFFSET_TABLE_REGNUM is a fixed register, flow.c implicitly puts a
use for the register at the end of each function.  This prevents combine
from "eliminating" r27.

In testing this, I tried to build glibc.  However, there seems to be
a problem with `L' character constants.  I keep getting the error
"character constant too long".  As another test, I am running a PIC
bootstrap and check in 32 bit mode under hpux 10.20.

Give it a whirl and see what you think.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2000-12-02  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa.h (PIC_OFFSET_TABLE_REG_CALL_CLOBBERED): Don't define.
	* pa32-regs.h (CONDITIONAL_REGISTER_USAGE): When generating pic code,
	PIC_OFFSET_TABLE_REGNUM_SAVED is a call_used register.
	* pa64-regs.h (CONDITIONAL_REGISTER_USAGE): Likewise.

--- pa.h.orig	Wed Sep 27 14:28:34 2000
+++ pa.h	Fri Dec  1 14:37:02 2000
@@ -492,10 +492,11 @@
 #define STATIC_CHAIN_REGNUM 29
 
 /* Register which holds offset table for position-independent
-   data references.  */
+   data references.  We save and restore PIC_OFFSET_TABLE_REGNUM
+   across calls so PIC_OFFSET_TABLE_REG_CALL_CLOBBERED shouldn't
+   be defined.  */
 
 #define PIC_OFFSET_TABLE_REGNUM (TARGET_64BIT ? 27 : 19)
-#define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED 1
 
 /* Register into which we save the PIC_OFFEST_TABLE_REGNUM so that it
    can be restore across function calls.  */
--- pa32-regs.h.orig	Fri Jul  7 19:59:16 2000
+++ pa32-regs.h	Fri Dec  1 16:10:07 2000
@@ -113,6 +113,7 @@
     {						\
       fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
       fixed_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
+      call_used_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
     }						\
 }
 
--- pa64-regs.h.orig	Fri Jul  7 19:59:16 2000
+++ pa64-regs.h	Fri Dec  1 16:11:09 2000
@@ -112,6 +112,7 @@
     {						\
       fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
       fixed_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
+      call_used_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
     }						\
 }
 


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> In testing this, I tried to build glibc.  However, there seems to be
> a problem with `L' character constants.  I keep getting the error
> "character constant too long".  As another test, I am running a PIC
> bootstrap and check in 32 bit mode under hpux 10.20.

The build failed but its too late to figure out what's wrong.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Kumar <kumar@ix.netcom.com>
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Subject: Re: [parisc-linux] linker errors
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Yes, I am using prebuilt binaries downloaded from puffin.external.hp.com.


-pkd

-rw-r--r--   1 500      233       1923587 May  1  1999
binutils-x-parisc-linux-2.9.1-11.tar.gz
-rw-r--r--   1 500      233       1706806 May  1  1999
egcs-x-parisc-linux-1.1.1-9.tar.gz
ftp> pwd
257 "/pub/parisc/binaries/tgz" is current directory.



On Wed, 5 May 1999, Alex deVries wrote:

> 
> On Tue, 4 May 1999, Kumar wrote:
> > I am getting following errors even from the latest binutils and
> > parisc-linux-gcc. Are there any special LDFLAGS that one needs to use ?
> > 						-pkd
> > 
> > parisc-linux-ld -L. -R 0x100000 -N -S rom_interface.o setup.o utils.o
> > strutils.o bcopy.o main.o io.o -l milli -o vmlinux
> > parisc-linux-ld: can not size stub section: Bad value
> > rom_interface.o: In function `cout_putc':
> > rom_interface.o($CODE$+0xe4): undefined reference to `$$dyncall'
> > rom_interface.o: In function `bootdev_sread':
> > rom_interface.o($CODE$+0xe0): undefined reference to `$$dyncall'
> > rom_interface.o: In function `pdc_call':
> > rom_interface.o($CODE$+0x118): undefined reference to `$$dyncall'
> > main.o: In function `parisc_init':
> > main.o($CODE$+0x208): undefined reference to `$$divU'
> > make: *** [vmlinux] Error 1
> > 
> 
> Hm.  I don't get this at all... it certainly links for me.  I do get a lot
> of errors with the linker itself, but nothing fatal.
> 
> Are you using the pre-built cross compilers? If so, which ones?
> 
> - Alex
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 
> 


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: pa reload problem
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For those reading this in gcc-patches, this thread starts with a testcase
distilled from the linux kernel at
http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/11-Nov/0388.html
with Dave's analysis at
http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/11-Nov/0391.html

On Sat, 2 Dec 2000, John David Anglin wrote:

> > Or is a better solution to simply ensure that r27 never dies?  I'm
> > thinking of ABI and (non-gnu) linker considerations.  eg. DLTIND21L relocs
> > not involving r27 may cause something to barf.
> 
> Here is a patch that I think resolves the problem.  The principal fix is
> not to define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED.  The reason for not
> defining this is the call expander explicitly restores the pic offset register
> after each call.  Thus, I think we can lie about the register being
> clobbered.

Telling lies generally leads to being caught out. ;-)

I prefer this patch, which strikes at the heart of the problem, and
doesn't seem to cause any new problems.  (apart from an unnecessary
register transfer at the end of some functions)

	* flow.c (mark_regs_live_at_end): Set PIC_OFFSET_TABLE_REGNUM even
	when PIC_OFFSET_TABLE_REG_CALL_CLOBBERED.

Alan
-- 
Linuxcare.  Support for the Revolution.

--- gcc/flow.c~	Fri Dec  1 15:56:03 2000
+++ gcc/flow.c	Sat Dec  2 20:50:51 2000
@@ -3249,13 +3249,17 @@ mark_regs_live_at_end (set)
     }
 
 #ifdef PIC_OFFSET_TABLE_REGNUM
-#ifndef PIC_OFFSET_TABLE_REG_CALL_CLOBBERED
   /* Many architectures have a GP register even without flag_pic.
      Assume the pic register is not in use, or will be handled by
-     other means, if it is not fixed.  */
+     other means, if it is not fixed.
+     We need to mark PIC_OFFSET_TABLE_REGNUM live at the end of a
+     function even when PIC_OFFSET_TABLE_REG_CALL_CLOBBERED because
+     reload may require it be valid.
+     ie. PIC_OFFSET_TABLE_REG_CALL_CLOBBERED should be viewed as
+     indicating what may happen during a call, not viewed as a
+     license allowing a register to die.  */
   if (fixed_regs[PIC_OFFSET_TABLE_REGNUM])
     SET_REGNO_REG_SET (set, PIC_OFFSET_TABLE_REGNUM);
-#endif
 #endif
 
   /* Mark all global registers, and all registers used by the epilogue





From - Thu Nov 08 21:14:30 2018
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From: Richard Henderson <rth@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: pa reload problem
Date: Sat, 2 Dec 2000 11:43:27 -0800
Lines: 22
Approved: news@gmane.org
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References: <200012020733.CAA24227@hiauly1.hia.nrc.ca> <Pine.LNX.4.21.0012021932030.21742-100000@front.linuxcare.com.au>
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
        Richard Hirst <rhirst@linuxcare.com>, parisc-linux@thepuffingroup.com,
        gcc-patches@gcc.gnu.org
To: Alan Modra <alan@linuxcare.com.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:8729

On Sat, Dec 02, 2000 at 11:35:19PM +1100, Alan Modra wrote:
> 	* flow.c (mark_regs_live_at_end): Set PIC_OFFSET_TABLE_REGNUM even
> 	when PIC_OFFSET_TABLE_REG_CALL_CLOBBERED.

I can't believe this makes a difference.  We already have

#ifdef PIC_OFFSET_TABLE_REGNUM
              /* Before reload, do not allow sets of the pic register
                 to be deleted.  Reload can insert references to
                 constant pool memory anywhere in the function, making
                 the PIC register live where it wasn't before.  */
              if (regno == PIC_OFFSET_TABLE_REGNUM && fixed_regs[regno]
                  && ! reload_completed)
                return 0;
#endif

in insn_dead_p.  Although one could argue keeping the register
live rather than avoiding deaths is a cleaner solution.


r~


From - Thu Nov 08 21:14:31 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] merge activity
Date: Sat, 2 Dec 2000 21:08:03 +0000
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To: parisc-linux@thepuffingroup.com
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those on the CVS list will have noticed a lot of activity just recently.
Alan Cox & myself are geting the tree into a state where it can be dropped
on Linus.  A number of changes have been made:

s/STATIC/static/
removal of asmlinkage -- it's a hangover from i386 that no-one else needs
Makefile conversion to new-style
u_long becomes unsigned long
old code has mostly been cleaned out
a lot of #ifdefs have been removed.

-- 
Revolutions do not require corporate support.


From - Thu Nov 08 21:14:31 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] iodccon
Date: Sat, 2 Dec 2000 21:09:26 +0000
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can we kill off iodccon now?  i seem to remember being told we could, but
i can't find confirmation of that in my inbox.

-- 
Revolutions do not require corporate support.


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: pa reload problem
Date: Sat, 2 Dec 2000 18:01:27 -0500 (EST)
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Cc: alan@linuxcare.com.au, rhirst@linuxcare.com,
        parisc-linux@thepuffingroup.com, gcc-patches@gcc.gnu.org
To: rth@redhat.com (Richard Henderson)
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In-Reply-To: <20001202114327.C27671@redhat.com> from "Richard Henderson" at Dec 2, 2000 11:43:27 am
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Xref: news.gmane.org gmane.linux.ports.parisc:8732

> On Sat, Dec 02, 2000 at 11:35:19PM +1100, Alan Modra wrote:
> > 	* flow.c (mark_regs_live_at_end): Set PIC_OFFSET_TABLE_REGNUM even
> > 	when PIC_OFFSET_TABLE_REG_CALL_CLOBBERED.
> 
> I can't believe this makes a difference.  We already have
> 
> #ifdef PIC_OFFSET_TABLE_REGNUM
>               /* Before reload, do not allow sets of the pic register
>                  to be deleted.  Reload can insert references to
>                  constant pool memory anywhere in the function, making
>                  the PIC register live where it wasn't before.  */
>               if (regno == PIC_OFFSET_TABLE_REGNUM && fixed_regs[regno]
>                   && ! reload_completed)
>                 return 0;
> #endif

I saw this but for some reason it didn't stop the set after the call from being
deleted in the combine pass.  Maybe this needs to be looked at in more detail
to determine why it doesn't work in this circumstance.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


From - Thu Nov 08 21:14:31 2018
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From: Andreas Thienemann <andreas@bawue.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Again trouble with HP9000/821/D250
Date: Sun, 03 Dec 2000 00:05:22 +0100
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This is a multi-part message in MIME format.
--------------22544189CD8A530A463B2CD4
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi,

I tried to get parisc booting on a second box after the first box couldn't
finish loading the kernel.

The whole toolchain and the kernel is a recent cvs checkout from today.

Boot log looks great until the ramdisk is initialized and the kernel dumps
stack.
This kernel is already stripped down, no lp0 no nothing. Basically just
ethernet and scsi support plus PCI, without the kernel does not compile at
all.

Any ideas? The bootlog is attached. To me it looks as if the i82596_probe
might be repsonsible. At least that's what a quick check of the IAOQ-address
suggested.

thanks a lot, 
 andreas

-- 
Andreas Thienemann				e-mail:	andreas@bawue.de
System administration
Bawue Net, Germany
--------------22544189CD8A530A463B2CD4
Content-Type: text/plain; charset=us-ascii;
 name="hp9k"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="hp9k"




Firmware Version  36.34

Duplex Console IO Dependent Code (IODC) revision 0

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------
      0       101 MHz   Active                 Functional          256 KB

  Central Bus Speed (in MHz)  :        101 

  Available memory (bytes)    :  134217728 
  Good memory required (bytes):   15245312 

  Primary boot path:    8/16/5.5   (dec)   
  Alternate boot path:  8/16/5.2   (dec)   
  Console path:         8/16/4.0   (dec)   
  Keyboard path:        8/16/7.0   (dec)   

Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


------- Main Menu -------------------------------------------------------------

        Command                         Description
        -------                         -----------
        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration [<command>]       Access Configuration menu/commands
        INformation [<command>]         Access Information menu/commands
        SERvice [<command>]             Access Service menu/commands

        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command > pa p3

ERROR:  Unknown path type

Main Menu: Enter command > pa 8saea

Searching for potential boot device(s)...
This may take several minutes.

To discontinue search, press any key (termination may not be immediate).


   Path Number        Device Path (dec)        Device Type
   -----------        -----------------        -----------
   P0                 8/16/5.6                 Random access media       
   P1                 8/16/5.5                 Random access media       
   P2                 8/16/5.2                 Random access media       
   P3                 8/16/6.0                 LAN Module


Main Menu: Enter command > bo 8/16/6.0
Interact with IPL (Y or N)?> n

Booting... 
Network Station Address 0060b0-3c08d4

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl root@gate.ixs.com Sat Dec  2 21:08:27 CET 2000
0/vmlinux 1954061 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.168.1.1 '
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 001000b8 first 00100000 n 3
Segment 0 load 00100000 size 1279328 mediaptr 0x1000
Segment 1 load 0023a000 size 174384 mediaptr 0x13a000
Segment 2 load 00268000 size 73728 mediaptr 0x165000
branching to kernel entry point 0x001000b8
Set default PSW W bit to 0
PDC Console Initialized
The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02a3000
start_parisc(0x504d6c,0x504d6c,0x0,0x0)
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.168.1.1 '
PALO initrd 0-0
model   00005890 00000481 00000000 00000002 778314c3 100000f0 00000004 0000008a 0000008a
vers    0000000d
cpuid   0000016d
CPUID   vers 11 rev 13
model   9000/821/D250
led_init: CPU_HVERSION 589
Searching for devices in PDC firmware... processor hpa 0xfffa0000
a newer box...
Found devices:
1. UL 350 Lasi Core BA (11) at 0xffd00000, versions 0x2e, 0x0, 0x81, 0x0, 0x0
2. UL 350 Lasi Core RS-232 (10) at 0xffd05000, versions 0x2e, 0x0, 0x8c, 0x0, 0x0
3. UL 350 Core SCSI (10) at 0xffd06000, versions 0x2e, 0x0, 0x82, 0x0, 0x80
4. UL 350 Core LAN (802.3) (10) at 0xffd07000, versions 0x2e, 0x0, 0x8a, 0x0, 0x0
5. UL 350 Core Centronics (10) at 0xffd02000, versions 0x2e, 0x0, 0x74, 0x0, 0x0
6. UL 350 Core PC Keyboard (10) at 0xffd08000, versions 0x2e, 0x0, 0x84, 0x0, 0x0
7. UL 350 Core PC Keyboard (10) at 0xffd08100, versions 0x2e, 0x0, 0x84, 0x0, 0x0
8. UL 350 Core PC Floppy (10) at 0xffd0a000, versions 0x2e, 0x0, 0x83, 0x0, 0x0
9. UL 350 Core Wax BA (11) at 0xffe00000, versions 0x30, 0x0, 0x8e, 0x0, 0x0
10. UL 350 Wax EISA BA (11) at 0xfc000000, versions 0x30, 0x0, 0x90, 0x0, 0x0
11. UL 350 Wax Core RS-232 (10) at 0xffe02000, versions 0x30, 0x0, 0x8c, 0x0, 0x0
That's a total of 11 devices.
No CPUs reported by firmware - probing...
Found CPU at fffa0000
CPU(s): 1 x PA7200 (PCX-T') at 101.000000 MHz
Linux version 2.4.0-test10 (root@gate.ixs.com) (gcc version 2.96 20000925 (experimental)) #4 Sat Dec 2 23:03:22 CET 2000
free_bootmem(0x2a4000, 0x7d5c000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.168.1.1 
trap_init
Calibrating delay loop... 100.76 BogoMIPS
Memory: 126052k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
lasi_led_init: CPU_HVERSION 589
LED display at ffd0c000
Wax at 0xffe00000 found.
Wax: HIL Keyboard-NMI registered.
Found i82596 at 0xffd07000, IRQ 87
early initialization of device eth0 is deferred
Initializing Lasi PS/2-keyboard port at 0xffd08000...
Support for Lasi PS/2-psaux not yet available !
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
Lasi PS/2 transmit buffer timeout
Lasi PS/2 transmit buffer timeout
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize

Dumping Stack from c7f9c000 to c7f9ca00:
c000 00000000 00000040 00000000 00000000 c024e1ec 00000001 00000000 ffffffff
c020 00000000 00000000 00000000 00000000 00000000 00000000 ffffffff c024e104
c040 c024e104 00000030 c7f90000 c0278000 c025360c 00000000 00000000 00000000
c060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 00000000
c080 00000000 c0278000 c0278000 c7f84000 00000000 00000000 c7f84098 c0278098
c0a0 00000000 c0292b38 00000000 c7f9c0ac c7f9c0ac c7f9c908 00000000 00000000
c0c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c0e0 c7f9c000 c011ae08 00000000 0000000f 00000000 00000000 00000024 00000000
c100 00000033 00000000 00000000 00000000 00000000 00000000 00000000 80000000
c120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1c0 00000000 fffffeff 00000000 ffffffff 00000000 c024edec ffffffff ffffffff
c1e0 ffffffff ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff
c200 ffffffff ffffffff 00000800 00000800 00000400 00000400 ffffffff ffffffff
c220 ffffffff ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000
c240 000000000 00000000 00010000 c7ffeca0 c0204a98 c02143b4 000000f0 00504d6c
c280 00000000 c0117a24 c0291800 00008000 c0292510 c0291800 0000000b 00000024
c2a0 0000003c 0000003e c024e000 00000001 c027de4f 00000004 c027de2b 00000000
c2c0 c01001f8 00000000 00000000 00000024 0000000b c024e220 c024e000 f0000070
c2e0 f0000068 000000ff ffd05800 ffd05800 ffd05800 00000060 ffffffff ffd05800
c300 0027d8c0 c023a000 00000000 00000000 c02788c0 00000000 000b0800 00000000
c320 0000001f 00000000 0000001f 00000000 0000001f 00000000 00000000 00000000
c340 00000000 00000000 00000000 00000000 00000000 00000000 00000010 00000020
c360 7f7fffff ffffffff 43ebebeb e0000000 00000000 00000000 45e69c6a 25b7ea20
c380 41800000 00000000 00000010 00000010 00000000 00000000 00000040 00000080
c3a0 00000100 00000200 00000400 00000800 7fffffff 7fffffff 41000000 00000000
c3c0 7fffffff 7fffffff 40800000 00000000 41000000 00000000 40300000 00000000
c3e0 40200000 00000000 40200000 00000000 41800000 7fffffff 40000000 00000000
c400 40000000 00000000 40800000 00000000 41000000 00000000 00000000 00000000
c420 c7f9c800 c0103cf4 00000000 00000000 00000000 00000000 00000000 00000000
c440 c0117a14 c0117a18 40800000 00000000 00254000 00000000 c0253040 c0253064
c460 00000000 c0253204 00000000 00000000 00000000 c7f9c470 00000000 00000000
c480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4a0 ff568802 fead1005 fd5a200b fab44017 f568802f ead1005f d5a200bf ab44017f
c4c0 568802ff ad66b0ac 5acd6159 b5ec77e0 6bd8efc1 d7c76ad0 af8ed5a1 5f1dab43
c4e0 be4de3d4 7c9bc7a9 f9413a00 c0103c48 e504e803 ca09d007 9413a00f 2827401f
c500 c7f9c000 c025360c 00000000 806dcb78 00db96f1 01c198b0 03f58432 079dbd36
c520 0f4dcf3e 1eed2b2e 3dace30e c010020c f62853ce ec50a79d d8a14f3b b1429e77
c540 62853cef c57ccc8c 8af99919 15f33233 c02786c0 c7f9c000 c025360c 00000000
c560 c0278000 7629b391 ec25d270 d84ba4e1 b09749c3 612e9387 c22b925c 845724b9
c580 08ae4973 112a27b4 2222fa3a 44334126 8810371e 10206e3d 20366928 401a6702
c5a0 80427b56 0084f6ad 017f5808 c0268f74 0566bfd6 0abbcafe 150120ae 2a74f40e
c5c0 00000001 c0257000 52901f9d a5568a68 00000060 ffffffff 00000021 c022a088
c5e0 a9ff3872 53fe70e5 a78a5498 c0268eb8 9e5fe730 3cbfce61 79092990 f264e672
c600 c02778b4 c027787c 00000000 00000000 00000000 c7f9c614 c7f9c614 c021157c
c620 00000000 00000000 00000000 c026d298 c7f9c614 c0295000 c02778b4 c027785c
c640 c0250800 00000000 00000000 00000000 000000fa 000000f2 000000ff c02696c8
c660 000000f0 c0292800 c0295000 c026de04 c0291000 c02778b4 c027786c c0291000
c680 c0295000 c023a000 c0291000 c02778b4 c0277880 c7ffca00 01234567 c7f9c000
c6a0 00000000 00000000 c0295000 c026ddc8 c0291000 00010800 c7f9c608 c024e220
c6c0 000000f0 c0292800 c0295000 c023a000 c0291000 c02778b4 c0277880 c02696c8
c6e0 000000f0 c0292800 c0295000 c02734cc c0291000 c02778b4 c0277880 c024e220
c700 c025d800 c01c3870 ffffffff c025d18c c7ffc400 00001000 00000010 c021ee78
c720 c028d000 c028d2f8 c01c3870 c0271584 c025d2b8 c025d15c c7f9c900 00000000
c740 ffffffff 0000ffe0 0060b03c 08d40000 00000000 00000008 c02696c8 000000f0
c760 c0292800 c025d800 c01c3870 ffffffff c025d18c c7ffc400 c0287800 c0257000
c780 00000063 00000008 c7f9c758 c02962c4 c0257000 00000000 c025d161 00000000
c7a0 c017e2a0 c017e300 c017e4c4 c02712ec f0100000 f0001180 f0000070 f0000068
c7c0 0004000b c0291800 c02712ec 00000000 c7ffc400 ffffffff c01c3870 c025d800
c7e0 c0292800 000000f0 00000000 000000ff 000000f2 000000fa 000000fd f0100000
c800 f0001180 f0000070 f0000068 00000000 c7f9c74e 00000002 c0271574 ffd07000
c820 c7f9c750 00000f20 00000000 c023a000 00000001 00000000 c7f9ca00 0027b9b8
c840 000b0800 00000000 0000001f 00000000 0000001f 00000000 0000001f 00000000
c860 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c880 00000010 00000020 7f7fffff ffffffff 43ebebeb e0000000 00000000 00000000
c8a0 45e69c6a 25b7ea20 41800000 00000000 00000010 00000010 00000000 00000000
c8c0 00000040 00000080 00000100 00000200 00000400 00000800 7fffffff 7fffffff
c8e0 41000000 00000000 7fffffff 7fffffff 40800000 00000000 41000000 00000000
c900 40300000 00000000 40200000 00000000 40200000 00000000 41800000 7fffffff
c920 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
c940 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c960 00000000 00000000 c0271308 c027130c 40800000 00000000 41000000 00000000
c980 00000000 000000fd 000000fa 000000f2 0000001f 0e681096 00000000 00000004
c9a0 00000001 00000000 c024f118 c024f458 c024f258 00000000 41000000 00000000
c9c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c9e0 00000000 00000000 c0117a14 c0104704 c024f258 a0174c55 402e98ab 802b8404

Data access rights fault in kernel: Code=26 regs=c7f9c7c0 (Addr=00000004)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001011
r0-3     00000000 c0291800 c02712ec 00000000
r4-7     c7ffc400 ffffffff c01c3870 c025d800
r8-11    c0292800 000000f0 00000000 000000ff
r12-15   000000f2 000000fa 000000fd f0100000
r16-19   f0001180 f0000070 f0000068 00000000
r20-23   c7f9c74e 00000002 c0271574 ffd07000
r24-27   c7f9c750 00000f20 00000000 c023a000
r28-31   00000001 00000000 c7f9ca00 0027b9b8
sr0-4    00000000 00000000 00000000 00000000
sr4-8    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c0271308 c027130c
 IIR: 0e681096    ISR: 00000000  IOR: 00000004
ORIG_R28: 000000fd

--------------22544189CD8A530A463B2CD4--


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: pa reload problem
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To: alan@linuxcare.com.au (Alan Modra)
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Xref: news.gmane.org gmane.linux.ports.parisc:8734

> I prefer this patch, which strikes at the heart of the problem, and
> doesn't seem to cause any new problems.  (apart from an unnecessary
> register transfer at the end of some functions)
> 
> 	* flow.c (mark_regs_live_at_end): Set PIC_OFFSET_TABLE_REGNUM even
> 	when PIC_OFFSET_TABLE_REG_CALL_CLOBBERED.

The comment above is incorrect.  It should read "Set SET_REGNO_REG_SET for
PIC_OFFSET_TABLE_REGNUM if it is a fixed register".

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: pa reload problem
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> > In testing this, I tried to build glibc.  However, there seems to be
> > a problem with `L' character constants.  I keep getting the error
> > "character constant too long".  As another test, I am running a PIC
> > bootstrap and check in 32 bit mode under hpux 10.20.
> 
> The build failed but its too late to figure out what's wrong.

I reverted the pic patch that I was testing and still get the same build
failure when building with "-g -O3 -fPIC".

stage1/xgcc -Bstage1/ -B/usr/local/hppa1.1-hp-hpux10.20/bin/ -c  -DIN_GCC    -g -O3 -fPIC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H    -I. -I. -I../../gcc -I../../gcc/. -I../../gcc/config -I../../gcc/../include ../../gcc/c-decl.c -o c-decl.o
../../gcc/c-decl.c: In function `groktypename':
../../gcc/c-decl.c:7212: warning: ICE: would have deleted prologue/epilogue insn
(insn 162 160 163 (set (reg:SI 4 %r4)
        (reg:SI 19 %r19)) -1 (nil)
    (nil))
../../gcc/c-decl.c: In function `groktypename_in_parm_context':
../../gcc/c-decl.c:7212: warning: ICE: would have deleted prologue/epilogue insn

(insn 162 160 163 (set (reg:SI 4 %r4)
        (reg:SI 19 %r19)) -1 (nil)
    (nil))
stage1/xgcc -Bstage1/ -B/usr/local/hppa1.1-hp-hpux10.20/bin/ -c  -DIN_GCC    -g -O3 -fPIC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H    -I. -I. -I../../gcc -I../../gcc/. -I../../gcc/config -I../../gcc/../include ../../gcc/c-typeck.c -o c-typeck.o
../../gcc/c-typeck.c: In function `really_start_incremental_init':
../../gcc/c-typeck.c:5180: output_operand: invalid expression as operand
../../gcc/c-typeck.c:5180: Internal compiler error in output_operand_lossage, at final.c:3397
confused by earlier errors, bailing out
make[2]: *** [c-typeck.o] Error 1
make[2]: Leaving directory `/xxx/gnu/gcc-2.97/objdir/gcc'
make[1]: *** [stage_c] Error 2
make[1]: Leaving directory `/xxx/gnu/gcc-2.97/objdir/gcc'
make: *** [bootstrap-lean] Error 2

Looks like there is still more work to be done regarding pic code generation
for the hppa.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Xref: news.gmane.org gmane.linux.ports.parisc:8736

On Sat, Dec 02, 2000 at 06:01:27PM -0500, John David Anglin wrote:
> I saw this but for some reason it didn't stop the set after the call
> from being deleted in the combine pass.

Oh, right.

In any case, the patch is applied in the wrong place.  It
needs to happen in calculate_global_regs_live, near

      /* Force the stack pointer to be live -- which might not already be
         the case for blocks within infinite loops.  */
      SET_REGNO_REG_SET (new_live_at_end, STACK_POINTER_REGNUM);



r~


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Subject: Re: pa reload problem
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Xref: news.gmane.org gmane.linux.ports.parisc:8737

On Sat, 2 Dec 2000, Richard Henderson wrote:

> On Sat, Dec 02, 2000 at 11:35:19PM +1100, Alan Modra wrote:
> > 	* flow.c (mark_regs_live_at_end): Set PIC_OFFSET_TABLE_REGNUM even
> > 	when PIC_OFFSET_TABLE_REG_CALL_CLOBBERED.
> 
> I can't believe this makes a difference.  We already have

It did, I can assure you.  Thanks for the feedback though.  I'll freely 
admit to not having much of an understanding of gcc internals.  What I've 
learned has mostly been from poking around with gdb when faced with a gcc 
bug, and I rely on you and others pointing out the proper fix from a
higher level perspective.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] linker errors
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Xref: news.gmane.org gmane.linux.ports.parisc:8738

At 11:30 PM 5/4/99 -0700, Kumar wrote:
>On Wed, 5 May 1999, Alex deVries wrote:
>
>> 
>> > parisc-linux-ld -L. -R 0x100000 -N -S rom_interface.o setup.o utils.o
>> > strutils.o bcopy.o main.o io.o -l milli -o vmlinux
>> > rom_interface.o($CODE$+0xe4): undefined reference to `$$dyncall'
>> > main.o: In function `parisc_init':
>> > main.o($CODE$+0x208): undefined reference to `$$divU'
>> > make: *** [vmlinux] Error 1
>> 
>> Hm.  I don't get this at all... it certainly links for me.  I do get a lot
>> of errors with the linker itself, but nothing fatal.
>> 
>> Are you using the pre-built cross compilers? If so, which ones?

These millicode calls should probably resolve through libmilli.a. I see it
included in the link step, but is your libmilli correct?

--
Mark Klein                                 DIS International, Ltd.
http://www.dis.com                         415-892-8400
PGP Public Key Available			


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Matthew Wilcox wrote:
> those on the CVS list will have noticed a lot of activity just recently.
> Alan Cox & myself are geting the tree into a state where it can be dropped
> on Linus.

Excellent you guys!

> A number of changes have been made:
> 
> s/STATIC/static/

It's ok that's it dropped but since I added I think you should know
why o put it in, in the first place.

Prumpf criticized this in my first dino code drop claiming one
could just compile with "-Dstatic=" to get the same effect
as "-DSTATIC=". That's not true. data declared static inside
a function will behave differently without "static" storage class.
STATIC serves to differentiate function declarations from local
static data declarations.

Why differentiate? Debuggers. I want to make sure all the symbols
I care about are visible - I'm told under ELF they are. Under SOM
binary format I know they weren't.

> u_long becomes unsigned long

I've been using "ulong" as well. Is less than desirable as well?
Feel free to change if it is.

> old code has mostly been cleaned out
> a lot of #ifdefs have been removed.

Some of the "ifdef 0" I have in "my" code are there for future stuff.
An examples is code related to DELAYED_RESOURCE_CNT in sba_iommu.c.
Fortunately, this wasn't removed.
Haw should I mark this to make sure people understand it's work-in-progress?

thanks,
grant


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Grant Grundler wrote:
> > u_long becomes unsigned long
> 
> I've been using "ulong" as well. Is less than desirable as well?
> Feel free to change if it is.

I see that's been done as well. np.

> > old code has mostly been cleaned out
> > a lot of #ifdefs have been removed.
> 
> Some of the "ifdef 0" I have in "my" code are there for future stuff.
> An examples is code related to DELAYED_RESOURCE_CNT in sba_iommu.c.
> Fortunately, this wasn't removed.
> Haw should I mark this to make sure people understand it's work-in-progress?

I do see #ifdef DUMP_RESMAP code (not much code) has been removed.
Obviously it wasn't marked right. :^)
(arch/parisc/kernel/sba_iommu.c)

later,
grant


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This could be related to willy's changes - I have no idea.
After setting CROSS-COMPILE = hppa64-linux-

make distclean
make clean
make oldconfig
make -j4 dep
make -j4 palo
...
hppa64-linux-ld: cannot open hardware_proc.o: No such file or directory
make[1]: *** [kernel.o] Error 1
make[1]: Leaving directory `/linux/pa64/linux/arch/parisc64/kernel'


I was able to build/link stuff on Friday...and it's way past my bedtime now.

grant


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> This could be related to willy's changes - I have no idea.

Yeah there was a bogus unused file called hardware_proc.o. Looks like we 
forgot to take it out of the 64bit Makefile. Just lose it from there



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> Why differentiate? Debuggers. I want to make sure all the symbols
> I care about are visible - I'm told under ELF they are. Under SOM
> binary format I know they weren't.

SOM is dead so we can now drop them. I understood why they were there 
though

> > u_long becomes unsigned long
> 
> I've been using "ulong" as well. Is less than desirable as well?
> Feel free to change if it is.

It would be nice too, or where the bitwidth matters to use u32/u64.

> Some of the "ifdef 0" I have in "my" code are there for future stuff.
> An examples is code related to DELAYED_RESOURCE_CNT in sba_iommu.c.
> Fortunately, this wasn't removed.
> Haw should I mark this to make sure people understand it's work-in-progress?

Most of it seemed obviously so already.



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> I do see #ifdef DUMP_RESMAP code (not much code) has been removed.
> Obviously it wasn't marked right. :^)
> (arch/parisc/kernel/sba_iommu.c)

The files I touched I removed dump_resmap from one file because nobody
even referenced it there. The other cases its alternatively a null inline
or a real function to get rid of some of the other ifdef crap


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On Sun, Dec 03, 2000 at 01:07:22PM +0000, Alan Cox wrote:
> > This could be related to willy's changes - I have no idea.
> 
> Yeah there was a bogus unused file called hardware_proc.o. Looks like we 
> forgot to take it out of the 64bit Makefile. Just lose it from there

done.

-- 
Revolutions do not require corporate support.


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I've applied this patch to pehc CVS to fix an hppa64 gcc problem that
Richard found when compiling modules for the 64-bit kernel.  It's not
specific to modules, but rather can affect anything requiring stubs to
call functions, eg. 64-bit userland linked to shared libs.

-- 
Linuxcare.  Support for the Revolution.

--- gcc/flow.c~	Thu Sep 28 10:37:45 2000
+++ gcc/flow.c	Mon Dec  4 09:53:44 2000
@@ -3298,7 +3298,17 @@
 	 to any pseudo before reload is a potential reference of the
 	 frame pointer.  */
       if (! reload_completed)
-	SET_REGNO_REG_SET (new_live_at_end, FRAME_POINTER_REGNUM);
+	{
+	  SET_REGNO_REG_SET (new_live_at_end, FRAME_POINTER_REGNUM);
+#ifdef PIC_OFFSET_TABLE_REGNUM
+	  /* And also for the pic register.  References to constants
+	     may require reloading via the pic register.  Assume the
+	     pic register is not in use, or will be handled by other
+	     means, if it is not fixed.  */
+	  if (fixed_regs[PIC_OFFSET_TABLE_REGNUM])
+	    SET_REGNO_REG_SET (new_live_at_end, PIC_OFFSET_TABLE_REGNUM);
+#endif
+	}
 
       /* Regs used in phi nodes are not included in
 	 global_live_at_start, since they are live only along a


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Hi Andreas,

    You say to your kernel that you boot with the nfsroot support and you
told us in your mail that is ramdisk boot you want. To my mind, nfsroot is
better, especially if you go to http://www.esiee.fr/puffin and you download
our fs root with lynx and termcap.

    But your problem comes from the point that you did not configure your
palo Makefile. If you want ramdisk, edit Makefile in Palo directory,
uncomment # RAMDISK and comment NFSROOT=10.0.0.2 and be sure of the name of
the file containing the ramdisk (that should be in your tftpboot as far as I
know!).


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From: John Marvin <jsm@udlkern.fc.hp.com>
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> we're getting close to merging -- just waiting for some replies from linus
> about some things we do which are slightly ugly and there's no obvious
> non-ugly way to do them.

What exactly are you talking about here? Are you attempting to get our
machine independent changes in at this time? I thought we had decided
that we were only going to send him the machine dependent part of the
tree at this time.

There are still issues that need to be resolved in the machine independent
code that will cause things to be done differently from the way we are
doing them now (e.g. stack direction, stack location, possibly some cache
flushing).  It does not make sense to try to merge the machine independent
code at this time in my opinion.

John Marvin
jsm@fc.hp.com


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OK, I used milli.S from the source distribution.. and its linked properly.

I do get warning messages like -
Ignoing subspace declaration due to ELF bfd bugs, but it did link.

Loader is not ELF aware yet, though. Tried u_entry in mklifheader to
be after ELF header in vmlinux..did not work. 

					
Also the comment in linux/include/asm-parisc/pgtable.h is wrong.

/*
 * The Linux memory management assumes a three-level page table setup. On
 * the PARISC, we use that, but "fold" the mid level into the top-level page
 * table, so that we physically have the same two-level page table as the
 * PARISC mmu expects.
 */
 PARISC MMU does not enforce any structure on page tables. In particular, 
 page table/tables are not multi-level. PA depends on the format of TLB
 insert instructions. I guess all we are going to have is one big flat
 page dir in memory, which is nothing but a bigger TLB cache. Could
 someone with write access to CVS source base can correct this.

 						-pkd



On Wed, 5 May 1999, Alex deVries wrote:

> 
> On Tue, 4 May 1999, Kumar wrote:
> > I am getting following errors even from the latest binutils and
> > parisc-linux-gcc. Are there any special LDFLAGS that one needs to use ?
> > 						-pkd
> > 
> > parisc-linux-ld -L. -R 0x100000 -N -S rom_interface.o setup.o utils.o
> > strutils.o bcopy.o main.o io.o -l milli -o vmlinux
> > parisc-linux-ld: can not size stub section: Bad value
> > rom_interface.o: In function `cout_putc':
> > rom_interface.o($CODE$+0xe4): undefined reference to `$$dyncall'
> > rom_interface.o: In function `bootdev_sread':
> > rom_interface.o($CODE$+0xe0): undefined reference to `$$dyncall'
> > rom_interface.o: In function `pdc_call':
> > rom_interface.o($CODE$+0x118): undefined reference to `$$dyncall'
> > main.o: In function `parisc_init':
> > main.o($CODE$+0x208): undefined reference to `$$divU'
> > make: *** [vmlinux] Error 1
> > 
> 
> Hm.  I don't get this at all... it certainly links for me.  I do get a lot
> of errors with the linker itself, but nothing fatal.
> 
> Are you using the pre-built cross compilers? If so, which ones?
> 
> - Alex
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 
> 


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On Mon, Dec 04, 2000 at 05:54:08AM -0700, John Marvin wrote:
> > we're getting close to merging -- just waiting for some replies from linus
> > about some things we do which are slightly ugly and there's no obvious
> > non-ugly way to do them.
> 
> What exactly are you talking about here? Are you attempting to get our
> machine independent changes in at this time? I thought we had decided
> that we were only going to send him the machine dependent part of the
> tree at this time.

Alan wants to put some of our independnt parts in too.  I'm just sorting
out the stack direction and location issues in the way Linus wants
it done.

> There are still issues that need to be resolved in the machine independent
> code that will cause things to be done differently from the way we are
> doing them now (e.g. stack direction, stack location, possibly some cache
> flushing).  It does not make sense to try to merge the machine independent
> code at this time in my opinion.
> 
> John Marvin
> jsm@fc.hp.com
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

-- 
Revolutions do not require corporate support.


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From: John Marvin <jsm@udlkern.fc.hp.com>
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> Alan wants to put some of our independnt parts in too.  I'm just sorting
> out the stack direction and location issues in the way Linus wants
> it done.

Well, here are some of the issues I would like to see addressed:

1) When I last checked, the stack growth fix only fixed one of the locations
   that cared about stack direction. There were others that were not fixed.
   Are you going to fix them?

2) The current fix duplicated machine independent code (expand_stack
   and find_vma), modified them, and placed them into the machine
   dependent code. The problem with that is that whenever changes are
   made to expand_stack and/or find_vma, we have to notice that and
   port the fixes, since whoever makes the changes is not likely to
   notice our special versions. I was hoping that we could get some
   support for stacks that grow up in the machine independent code
   so that they are visible.

3) I hope that we will have some control of the stack location in the
   machine dependent code. I would like to be able to place the stack
   near the top of memory, and have the location based on the stack
   size limit (rlim[RLIMIT_STACK].rlim_max).

4) The top of memory for user space is currently 0xc0000000, but I hope
   to change that to 0xffffe000 in the next month or two.

5) To make it clear "why" the code is different, I was hoping that
   any #ifdef's in the machine independent code for stack grows up
   changes would be something like #ifdef STACK_GROWS_UP, rather than
   #ifdef parisc. Then STACK_GROWS_UP would be set for parisc. This
   way, when people are making changes to the code, they will understand
   what the different code is for, rather than wondering why parisc
   has that code change. Also, it would help all those other future
   architectures with stacks that grow up when they port Linux :-).

I would appreciate it if you would keep us informed regarding discussions
between you and Linus regarding this issue.

John Marvin
jsm@fc.hp.com


From - Thu Nov 08 21:14:32 2018
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From: John Marvin <jsm@udlkern.fc.hp.com>
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FYI, I couldn't remember where the other stack direction issues were, so
I looked them up. The places where expand_stack() is called in 
mm/memory.c and mm/mmap.c will probably need to be changed for parisc.

John Marvin
jsm@fc.hp.com


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On Mon, Dec 04, 2000 at 06:55:36AM -0700, John Marvin wrote:
> > Alan wants to put some of our independnt parts in too.  I'm just sorting
> > out the stack direction and location issues in the way Linus wants
> > it done.
> 
> Well, here are some of the issues I would like to see addressed:
> 
> 1) When I last checked, the stack growth fix only fixed one of the locations
>    that cared about stack direction. There were others that were not fixed.
>    Are you going to fix them?

I've fixed the ones which I noticed.  You've pointed out some in your other
mail which I hadn't, I'll look for them.

> 2) The current fix duplicated machine independent code (expand_stack
>    and find_vma), modified them, and placed them into the machine
>    dependent code. The problem with that is that whenever changes are
>    made to expand_stack and/or find_vma, we have to notice that and
>    port the fixes, since whoever makes the changes is not likely to
>    notice our special versions. I was hoping that we could get some
>    support for stacks that grow up in the machine independent code
>    so that they are visible.

ok, that's ugly.  i'll try and fix those too.

> 3) I hope that we will have some control of the stack location in the
>    machine dependent code. I would like to be able to place the stack
>    near the top of memory, and have the location based on the stack
>    size limit (rlim[RLIMIT_STACK].rlim_max).

i think we can arrange that.

> 5) To make it clear "why" the code is different, I was hoping that
>    any #ifdef's in the machine independent code for stack grows up
>    changes would be something like #ifdef STACK_GROWS_UP, rather than
>    #ifdef parisc. Then STACK_GROWS_UP would be set for parisc. This
>    way, when people are making changes to the code, they will understand
>    what the different code is for, rather than wondering why parisc
>    has that code change. Also, it would help all those other future
>    architectures with stacks that grow up when they port Linux :-).

it's #ifdef ARCH_STACK_GROWSUP.  it's defined (or not..) in <asm/pgtable.h>
along with similar VM constants.

> I would appreciate it if you would keep us informed regarding discussions
> between you and Linus regarding this issue.

sure.  so far there's only been a mail from Alan to Linus asking for a
ruling on an appropriate way to handle this, and Linus is in favour of
a per-arch define.

-- 
Revolutions do not require corporate support.


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: pci changes
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To: jsm@udlkern.fc.hp.com (John Marvin)
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Xref: news.gmane.org gmane.linux.ports.parisc:8754

> 2) The current fix duplicated machine independent code (expand_stack
>    and find_vma), modified them, and placed them into the machine
>    dependent code. The problem with that is that whenever changes are
>    made to expand_stack and/or find_vma, we have to notice that and
>    port the fixes, since whoever makes the changes is not likely to
>    notice our special versions. I was hoping that we could get some
>    support for stacks that grow up in the machine independent code
>    so that they are visible.

Duplicating them is right for the 2.4 path, fixing the generic code is
probably right post 2.4

> 3) I hope that we will have some control of the stack location in the
>    machine dependent code. I would like to be able to place the stack
>    near the top of memory, and have the location based on the stack
>    size limit (rlim[RLIMIT_STACK].rlim_max).

Yep

> 4) The top of memory for user space is currently 0xc0000000, but I hope
>    to change that to 0xffffe000 in the next month or two.

Just frob the numbers, that isnt a big issue.

> 5) To make it clear "why" the code is different, I was hoping that
>    any #ifdef's in the machine independent code for stack grows up
>    changes would be something like #ifdef STACK_GROWS_UP, rather than
>    #ifdef parisc. Then STACK_GROWS_UP would be set for parisc. This

That is what Linus said when I asked him hppa v STACK_GROWS_UP v duplicating
all the code

> I would appreciate it if you would keep us informed regarding discussions
> between you and Linus regarding this issue.

I will do


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Xref: news.gmane.org gmane.linux.ports.parisc:8755

On Sat, Dec 02, 2000 at 06:15:14PM +1100, Alan Modra wrote:
> > I hope I'm not supposed to do anything special with that $$divU call,
> 
> Unfortunately, I think you are supposed to.  All the $$ routines are from
> the millicode library, and are treated specially by the linker.  When
> doing a final link, these functions are never supplied by a shared
> library, but must come from a static lib like libgcc.a, or
> libmilli.a.  This has the effect of never calling these routines via the
> .plt, and so dp is preserved.  gcc isn't doing anything wrong here.
> 
> If you use a long branch stub that only trashes r1, you should be OK.
> _Don't load dp for these routines!  (I hope all libmilli routines are
> re-entrant - if not, we'd probably have weird kernel crashes...)

OK, done that, thanks.

> Note that all of the above applies to 32-bit modutils too.

Shouldn't be an issue with 32 bit, as kernel and modules all have
the same dp there.

Richard


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Xref: news.gmane.org gmane.linux.ports.parisc:8756

On Mon, Dec 04, 2000 at 12:41:29PM +1100, Alan Modra wrote:
> I've applied this patch to pehc CVS to fix an hppa64 gcc problem that
> Richard found when compiling modules for the 64-bit kernel.  It's not
> specific to modules, but rather can affect anything requiring stubs to
> call functions, eg. 64-bit userland linked to shared libs.

And it works :-)  I can now insmod sym53c8xx.o on the A500 successfully.

Many thanks,
  Richard


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] On the naming of discs
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As noted in the install documentation, Linux and HPUX name their
discs differently.  HPUX follows the spec and numbers from 7 down to 0,
Linux follows the PC aberration and numbers from 0 up to 7.  Alan's just
pointed out to me that we have the capability to reverse this.  However,
it's going to change everyone's numbering.  Do we want to switch?

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] On the naming of discs
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Matthew Wilcox wrote:
> 
> As noted in the install documentation, Linux and HPUX name their
> discs differently.  HPUX follows the spec and numbers from 7 down to 0,
> Linux follows the PC aberration and numbers from 0 up to 7.

The problem is not how disks are enumerated. HPUX does it exactly the
same way - SCSI spec defines how the SCSI bus is to be walked.

The real problem is how devices are "named". Adding or removing devices may
cause existing devices to get new names when the system is rebooted.
And adding/removing devices on one SCSI bus will affect how devices
on other SCSI busses are named.

Even though HPUX's naming convention isn't perfect (eg /dev/rdsk/c1t2d3),
it works well for SCSI devices - regardless of type and when added.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: pa reload problem
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On Mon, 4 Dec 2000, Richard Hirst wrote:

> > Note that all of the above applies to 32-bit modutils too.
> 
> Shouldn't be an issue with 32 bit, as kernel and modules all have
> the same dp there.

Yes, silly me.  32 bit is non-pic, so you don't need to worry about
it.  (%r19 in 32 bit case)

-- 
Linuxcare.  Support for the Revolution.


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Subject: [parisc-linux] ld problem workaround
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There is now an ugly workaround in the CVS tree that allows us to
use 0x8000 as kernel entry point.


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: pa reload problem
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> On Mon, 4 Dec 2000, Richard Hirst wrote:
> 
> > > Note that all of the above applies to 32-bit modutils too.
> > 
> > Shouldn't be an issue with 32 bit, as kernel and modules all have
> > the same dp there.
> 
> Yes, silly me.  32 bit is non-pic, so you don't need to worry about
> it.  (%r19 in 32 bit case)

However, it may be an issue for 32 bit pic code under hpux.  It is not
clear to me why this didn't show up before with 32 bit pic code.  For
some reason, the circumstances which caused combine to delete the set
restoring dp after function calls didn't seem to occur.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > discs differently.  HPUX follows the spec and numbers from 7 down to 0,
> > Linux follows the PC aberration and numbers from 0 up to 7.
> 
> The problem is not how disks are enumerated. HPUX does it exactly the
> same way - SCSI spec defines how the SCSI bus is to be walked.

ANSI order is 15->0 order PC order 0->15

> The real problem is how devices are "named". Adding or removing devices may
> cause existing devices to get new names when the system is rebooted.
> And adding/removing devices on one SCSI bus will affect how devices
> on other SCSI busses are named.

This isnt a kernel related issue


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: pa reload problem
Date: Tue, 5 Dec 2000 10:59:45 +1100 (EST)
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Mon, 4 Dec 2000, John David Anglin wrote:

> > On Mon, 4 Dec 2000, Richard Hirst wrote:
> > 
> > > > Note that all of the above applies to 32-bit modutils too.
> > > 
> > > Shouldn't be an issue with 32 bit, as kernel and modules all have
> > > the same dp there.
> > 
> > Yes, silly me.  32 bit is non-pic, so you don't need to worry about
> > it.  (%r19 in 32 bit case)
> 
> However, it may be an issue for 32 bit pic code under hpux.  It is not
> clear to me why this didn't show up before with 32 bit pic code.  For
> some reason, the circumstances which caused combine to delete the set
> restoring dp after function calls didn't seem to occur.

Hi Dave,
  Richard and I had wandered off-topic in the above exchange, and were
talking about modutils and stubs, in particular stub calls to millicode.

Getting back on topic, the reload problem _does_ affect 32 bit hppa code.
Compiling my testcase with -O2 -fPIC -S, gives

        copy %r19,%r4
        bl foo,%r2
        stw %r19,-32(%r30)
        addil LT'cpu_hz,%r4
        copy %r1,%r21
        addil LT'.LC0,%r19		! oops
        ldw RT'cpu_hz(%r21),%r21
        ldw RT'.LC0(%r1),%r1

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: pa reload problem
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> Hi Dave,
>   Richard and I had wandered off-topic in the above exchange, and were
> talking about modutils and stubs, in particular stub calls to millicode.
> 
> Getting back on topic, the reload problem _does_ affect 32 bit hppa code.
> Compiling my testcase with -O2 -fPIC -S, gives
> 
>         copy %r19,%r4
>         bl foo,%r2
>         stw %r19,-32(%r30)
>         addil LT'cpu_hz,%r4
>         copy %r1,%r21
>         addil LT'.LC0,%r19		! oops

For some reason, I only saw this with the 64 bit version.

There is one other bit of code in rtlanal.c related to the patch which
bothers me.  I am wondering if it is ok or needs changing:

#ifndef PIC_OFFSET_TABLE_REG_CALL_CLOBBERED
      /* ??? When call-clobbered, the value is stable modulo the restore
         that must happen after a call.  This currently screws up local-alloc
         into believing that the restore is not needed.  */
      if (x == pic_offset_table_rtx)
        return 0;
#endif

This is in rtx_unstable_p and rtx_varies_p.  Possibly, now that there is
a use until reload is complete, this problem is fixed and the
pic_offset_table_rtx should be stable even when
PIC_OFFSET_TABLE_REG_CALL_CLOBBERED?  See comment at beginning of
rtx_varies_p.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] fault.c b0rken
Date: Mon, 4 Dec 2000 18:31:21 -0800 (PST)
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fault.c: In function `do_page_fault':
fault.c:137: warning: passing arg 3 of `find_vma_prev' from incompatible pointer type
fault.c:181: incompatible types in assignment
make[2]: *** [fault.o] Error 1
make[2]: Leaving directory `/linux/pa32/linux/arch/parisc/mm'

Neither 32- nor 64-bit builds work.
Willy needed to get some sleep...as do I.
Anyone have time to look at this?

thanks,
grant

Recent changes:
revision 1.23
date: 2000/12/05 01:15:11;  author: willy;  state: Exp;  lines: +1 -1

suddenly realised i got the return code of expand_stack the wrong way round.
time for bed said zebedee.
----------------------------
revision 1.22
date: 2000/12/05 01:06:01;  author: willy;  state: Exp;  lines: +9 -26

use the ia64 find_vma_prev (located in mm/mmap.c -- how they got that
one past linus, i'll never know) instead of pa_find_vma.  should speed
up tasks using malloc debuggers by a factor of 100 or more.
----------------------------
revision 1.21
date: 2000/12/04 16:59:22;  author: willy;  state: Exp;  lines: +1 -23

More stack direction fixes.

Take stack_growsup out of arch/parisc/mm/fault.c and put it into
include/linux/mm.h, conditionalised on ARCH_STACK_GROWSUP.  Move the
check for the vma auto-grows flag into the stack_growsup functions.
Check removed from most callers (some have to check something else
between those two checks).



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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: pa reload problem
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On Mon, 4 Dec 2000, John David Anglin wrote:

> > Getting back on topic, the reload problem _does_ affect 32 bit hppa code.
> > Compiling my testcase with -O2 -fPIC -S, gives
> > 
> >         copy %r19,%r4
> >         bl foo,%r2
> >         stw %r19,-32(%r30)
> >         addil LT'cpu_hz,%r4
> >         copy %r1,%r21
> >         addil LT'.LC0,%r19		! oops
> 
> For some reason, I only saw this with the 64 bit version.

Probably because it only appears with -fpic (or -fPIC), which you get for
free on pa64

> There is one other bit of code in rtlanal.c related to the patch which
> bothers me.  I am wondering if it is ok or needs changing:
> 
> #ifndef PIC_OFFSET_TABLE_REG_CALL_CLOBBERED
>       /* ??? When call-clobbered, the value is stable modulo the restore
>          that must happen after a call.  This currently screws up local-alloc
>          into believing that the restore is not needed.  */
>       if (x == pic_offset_table_rtx)
>         return 0;
> #endif
> 
> This is in rtx_unstable_p and rtx_varies_p.  Possibly, now that there is
> a use until reload is complete, this problem is fixed and the
> pic_offset_table_rtx should be stable even when
> PIC_OFFSET_TABLE_REG_CALL_CLOBBERED?  See comment at beginning of
> rtx_varies_p.

Likely so.  With rth's latest patch to calculate_global_regs_live, it's
possibile that I can remove some of the ARG_POINTER_INVARIANT patch too.

-- 
Linuxcare.  Support for the Revolution.


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On Mon, 4 Dec 2000, Grant Grundler wrote:

> fault.c: In function `do_page_fault':
> fault.c:137: warning: passing arg 3 of `find_vma_prev' from incompatible pointer type
> fault.c:181: incompatible types in assignment
> make[2]: *** [fault.o] Error 1
> make[2]: Leaving directory `/linux/pa32/linux/arch/parisc/mm'

I've added the missing `*'

-- 
Linuxcare.  Support for the Revolution.


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] iodccon
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On Sat, Dec 02, 2000 at 09:09:26PM +0000, Matthew Wilcox wrote:
> 
> can we kill off iodccon now?  i seem to remember being told we could, but
> i can't find confirmation of that in my inbox.

ok, if no-one replies within the next week telling me we need it, i shall
strangle iodccon with my bare hands.

-- 
Revolutions do not require corporate support.


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: [parisc-linux] linker magic
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I've just committed a binutils change that should mean we can build glibc
(and other large shared libs) that happen to use a "ld -r" link stage
without needing to resort to gcc -ffunction-sections.  Previously, a
"ld -r" would combine all input .text sections into one output section,
which, if the library was large enough, would mean that branches couldn't
reach their long-branch or import stubs.  Now the linker will refuse to
combine .text during a "ld -r".  This is done without altering the default
linker scripts, so should be effective even with packages that provide
their own linker scripts.

At the moment, there's no way to turn it off...  Let me know how it goes.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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On Tue, 5 Dec 2000, Matthew Wilcox wrote:

> On Sat, Dec 02, 2000 at 09:09:26PM +0000, Matthew Wilcox wrote:
> > 
> > can we kill off iodccon now?  i seem to remember being told we could, but
> > i can't find confirmation of that in my inbox.
> 
> ok, if no-one replies within the next week telling me we need it, i shall
> strangle iodccon with my bare hands.

*jump* I'm just going to jump into this one.  

I was under the impression that the first console we ever got up and running 
was iodccon.  This is due to the hardware independant mechanism for accessing 
the console, correct?  

If so, why don't we keep it around for the people who want to use specific 
hardware for the console that we currently don't have a Linux device driver 
for: New machines that don't have Linux yet, other esoteric hardware that 
someone, somewhere will eventually want to port Linux to (all the machines 
that will _never_ be supported due to lack of hardware).

On a not so related note, do we have a mechanism of determing what the current
console is from IODC and enabling the appropriate console in Linux?  To fix the
common problem of: My machines dies after this message "iodccon dies!!"

-- 
David Kennedy, Technical Account Manager, Linuxcare, Inc.
613.562.9594 tel, 613.562.9304 fax
dkennedy@linuxcare.com, http://www.linuxcare.com/
Linuxcare.  Support for the revolution.



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On Thu, 6 May 1999, Philipp Rumpf wrote:

> There is now an ugly workaround in the CVS tree that allows us to
> use 0x8000 as kernel entry point.

So if I understand it correctly, we should be able to fix the bootloader
to jump to 0x8000 and actually load the kernel.

Chris, how far off that are we?

- Alex


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From: Commish@CurrentFights.com (Jan C Booker)
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Subject: [parisc-linux] are YOU a boxing fan?
Date: Tue,  5 Dec 2000 06:54:51 -0800
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then you NEED to check out www.CurrentFights.com         a web site FULL of Streaming Videos and audio's of the TOP Fights and Fighters of today ....  SEE IT NOW !!!


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Subject: [parisc-linux] binary compatibility
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how much do people care if i break binary compatibility again?  i want
to fix the stack properly, and this will require a new crt0.o.  ok,
it means replacing all the current binaries, but most of them are
crossbuilt anyway.

i suppose the pain of this would be mitigated if there were other changes
to the abi that people wanted to make and we could make them all at the
same time.

ideas?

-- 
Revolutions do not require corporate support.


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Subject: Re: pa reload problem
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> I reverted the pic patch that I was testing and still get the same build
> failure when building with "-g -O3 -fPIC".
...
> stage1/xgcc -Bstage1/ -B/usr/local/hppa1.1-hp-hpux10.20/bin/ -c  -DIN_GCC    -g -O3 -fPIC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H    -I. -I. -I../../gcc -I../../gcc/. -I../../gcc/config -I../../gcc/../include ../../gcc/c-typeck.c -o c-typeck.o
> ../../gcc/c-typeck.c: In function `really_start_incremental_init':
> ../../gcc/c-typeck.c:5180: output_operand: invalid expression as operand
> ../../gcc/c-typeck.c:5180: Internal compiler error in output_operand_lossage, at final.c:3397
> confused by earlier errors, bailing out

This error results from the following substitution which occurs in the
"lreg" pass.  Here is the "lreg" rtl:

(insn 67 926 927 (set (reg/f:SI 107)
        (mem/u:SI (lo_sum:SI (reg/f:SI 309)
                (unspec:SI[
                        (symbol_ref:SI ("constructor_max_index"))
		    ]  0)) 0)) 82 {*pa.md:2352} (insn_list 65 (nil))
    (expr_list:REG_EQUIV (mem/u:SI (lo_sum:SI (reg/f:SI 309)
		(unspec:SI[
			(symbol_ref:SI ("constructor_max_index"))
		    ]  0)) 0)
        (expr_list:REG_DEAD (reg/f:SI 309)
            (nil))))

...

(insn 569 619 627 (set (reg/f:SI 232)
        (reg/f:SI 107)) 69 {*pa.md:2099} (nil)
    (expr_list:REG_DEAD (reg/f:SI 107)
        (nil)))

Then, after the "greg" pass we get for insn 569:

(insn 569 619 627 (set (reg/f:SI 21 %r21)
        (mem/u:SI (lo_sum:SI (reg/f:SI 8 %r8)
		(unspec:SI[
			(symbol_ref:SI ("constructor_max_index"))
		    ]  0)) 0)) 69 {*pa.md:2099} (nil)
    (nil))

The "mem" apparently satisfies the RQ constraint for the "ldw%M1 %1,%0"
code of the insn {*pa.md:2099} but this operand can't be printed printed.
Thus, either we need to improve the printing of pic symbol references or
disallow MEMs of this type in the Q constraint.  Any thoughts on this?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Daniel Engstrom <danne@telia.com>
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Subject: [parisc-linux] Recent CVS kernel: boot failure on 715/50 & inb() undefined
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Since about yesterday CVS kernels seems to stop booting after the
traps_init message.

Hardware: 715/50, serial console. I can remeber this happening before 
but it was 'fixed' by disabling support for PCI chipsets.

Also: I had to tweak the kernel a bit so it would link, because inb()
and outb() was undefined (referenced in driverd/cher/mem.c and
drivers/char/serial.c). 

I could see that the code in mem.c had some '#if !defined(__mc68000__)'
around them, perhaps there should be a CONFIG_PORT_IO #define to test for
which could be undefined on machines such as the 715 without a wax driver.

Or maybe inb() and outb() should always be defined?

/Daniel  

-- 



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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Recent CVS kernel: boot failure on 715/50 & inb() undefined
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Daniel Engstrom wrote:

> Or maybe inb() and outb() should always be defined?

inb/outb need to be defined for the type of I/O bus being supported.

PArisc doesn't have inb/outb instructions like x86.
PCI bus support is platform specific - ie different depending on HBA.
GSC bus support requires faking "I/O port space".
EISA is similar to PCI in this regard.

But HP does have systems with GSC, EISA, and PCI in the same machine.
Right now, only PCI defines a dynamic interface to support all three
at the same time. This "design" definitely needs more work for GSC/EISA
bus support if you (or anyone else) is interested.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Subject: Re: [parisc-linux] Recent CVS kernel: boot failure on 715/50 & inb() undefined
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In-Reply-To: <Pine.LNX.4.21.0012052307320.8673-100000@zaphod.halden.lillfab.se>; from danne@telia.com on Tue, Dec 05, 2000 at 11:18:24PM +0100
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On Tue, Dec 05, 2000 at 11:18:24PM +0100, Daniel Engstrom wrote:
> Also: I had to tweak the kernel a bit so it would link, because inb()
> and outb() was undefined (referenced in driverd/cher/mem.c and
> drivers/char/serial.c). 

OK, this is Alan Cox's fault :-)  He insists that inb et al should not
have dummy defines, but the drivers should be fixed instead.  please send
your .config.

> I could see that the code in mem.c had some '#if !defined(__mc68000__)'
> around them, perhaps there should be a CONFIG_PORT_IO #define to test for
> which could be undefined on machines such as the 715 without a wax driver.

possibly, it's difficult to say wihout knowing exactly what's going wrong.

-- 
Revolutions do not require corporate support.


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Recent CVS kernel: boot failure on 715/50 & inb() undefined
Date: Wed, 6 Dec 2000 00:58:48 +0000 (GMT)
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To: matthew@wil.cx (Matthew Wilcox)
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In-Reply-To: <20001205223256.F12682@parcelfarce.linux.theplanet.co.uk> from "Matthew Wilcox" at Dec 05, 2000 10:32:56 PM
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> OK, this is Alan Cox's fault :-)  He insists that inb et al should not
> have dummy defines, but the drivers should be fixed instead.  please send
> your .config.

I am allowed to be wrong here. I would like to take a look at the specific
drivers if you can tell me which before you leave.


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Recent CVS kernel: boot failure on 715/50 & inb() undefined
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In-Reply-To: <20001205223256.F12682@parcelfarce.linux.theplanet.co.uk> from "Matthew Wilcox" at Dec 05, 2000 10:32:56 PM
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> OK, this is Alan Cox's fault :-)  He insists that inb et al should not
> have dummy defines, but the drivers should be fixed instead.  please send
> your .config.

Oh wait ignore my other comment. I realised the context this one was meant.
You want it to fail to build drivers for things you cannot have, not 
mysteriously fail in some driver thats mostly mmio but has an inb/inw you
didnt notice..

> 
> 


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] binary compatibility
Date: Wed, 6 Dec 2000 14:53:37 +1100 (EST)
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On Tue, 5 Dec 2000, Matthew Wilcox wrote:

> how much do people care if i break binary compatibility again?

I'd be a hypocrite if I did, as I've broken it a number of times.  :)

> i suppose the pain of this would be mitigated if there were other changes
> to the abi that people wanted to make and we could make them all at the
> same time.
> 
> ideas?

o  Remove millicode stuff from libgcc, and make a libmill.a  Support code
   to automagically look for -lmilli is already in ld, but disabled as ld
   will complain if it can't find libmilli.a.
o  Switch over to using dwarf2 unwind for c++ exception handling.

Alan
-- 
Linuxcare.  Support for the Revolution.




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From: Jeffrey A Law <law@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: testcase for hppa64 gcc bug
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  In message <200011091739.MAA07483@hiauly1.hia.nrc.ca>you write:
  > For the record, here is my final patch regarding making the arg_pointer
  > eliminable for TARGET_64BIT.  I think the code it generates is correct but
  > it hasn't been extensively tested.  However, I don't recommend it for
  > installation since in comparing the assembler code generated with and
  > without elimination for a couple of test cases, I didn't observe any
  > significant improvement in the code with the patch.  Possibly, the patch
  > implicitly disables elimination when the arg_pointer is needed.
  > 
  > I do find that Alan Modra's ARG_POINTER_INVARIANT patch needs to be install
  > ed
  > to get correct code with his test case.
  > 
  > There is one part of the patch below which I think needs to be installed.
  > That is
  > 
  > 	(call, call_value): Always USE the arg_pointer for TARGET_64BIT.
  > 
  > The use for the arg_pointer needs to be pulled out of the `if (flag_pic)'.
  > 
  > Dave
  > -- 
  > J. David Anglin                                  dave.anglin@nrc.ca
  > National Research Council of Canada              (613) 990-0752 (FAX: 952-6
  > 605)
  > 
  > 2000-11-07  John David Anglin  <dave@hiauly1.hia.nrc.ca>
  > 
  > 	* pa-linux64.h (ARG_POINTER_INVARIANT): Define even when the
  > 	arg_pointer is being eliminated.
  > 	(ELIMINABLE_REGS): Enable elimination of the arg_pointer.
  > 	(INITIAL_ELIMINATION_OFFSET): Revise offsets for arg_pointer.
  > 	* pa.md (mulsi3, divsi3, udivsi3, modsi3, umodsi3 and
  > 	canonicalize_funcptr_for_compare): Put "(reg:SI 26)" inside
  > 	unspec to prevent elimination.
  > 	(call, call_value): Always USE the arg_pointer for TARGET_64BIT.
  > 	Use the new addmovdi3 insn to load the arg_pointer register.
  > 	(addmovdi3 and mov_from_r29_si): New insn and expand which prevent
  > 	r29 from being eliminated in call setups and millicode returns.
I haven't followed this discussion too closely.  Is this patch still needed
after some of the recent changes in how we compute liveness for the argument
pointer?
jeff


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> > There is now an ugly workaround in the CVS tree that allows us to
> > use 0x8000 as kernel entry point.
> 
> So if I understand it correctly, we should be able to fix the bootloader
> to jump to 0x8000 and actually load the kernel.

The other way round preferably.

> Chris, how far off that are we?

Where are the bootloader sources atm ?


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: testcase for hppa64 gcc bug
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>   > 2000-11-07  John David Anglin  <dave@hiauly1.hia.nrc.ca>
>   > 
>   > 	* pa-linux64.h (ARG_POINTER_INVARIANT): Define even when the
>   > 	arg_pointer is being eliminated.
>   > 	(ELIMINABLE_REGS): Enable elimination of the arg_pointer.
>   > 	(INITIAL_ELIMINATION_OFFSET): Revise offsets for arg_pointer.
>   > 	* pa.md (mulsi3, divsi3, udivsi3, modsi3, umodsi3 and
>   > 	canonicalize_funcptr_for_compare): Put "(reg:SI 26)" inside
>   > 	unspec to prevent elimination.
>   > 	(call, call_value): Always USE the arg_pointer for TARGET_64BIT.
>   > 	Use the new addmovdi3 insn to load the arg_pointer register.
>   > 	(addmovdi3 and mov_from_r29_si): New insn and expand which prevent
>   > 	r29 from being eliminated in call setups and millicode returns.
> I haven't followed this discussion too closely.  Is this patch still needed
> after some of the recent changes in how we compute liveness for the argument
> pointer?

I think this needs to be reexamined.  Allan's ARG_POINTER_INVARIANT patch
might not be needed now.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: testcase for hppa64 gcc bug
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On Tue, 5 Dec 2000, John David Anglin wrote:

> >   > 2000-11-07  John David Anglin  <dave@hiauly1.hia.nrc.ca>
> >   > 
> >   > 	* pa-linux64.h (ARG_POINTER_INVARIANT): Define even when the
> >   > 	arg_pointer is being eliminated.
> >   > 	(ELIMINABLE_REGS): Enable elimination of the arg_pointer.
> >   > 	(INITIAL_ELIMINATION_OFFSET): Revise offsets for arg_pointer.
> >   > 	* pa.md (mulsi3, divsi3, udivsi3, modsi3, umodsi3 and
> >   > 	canonicalize_funcptr_for_compare): Put "(reg:SI 26)" inside
> >   > 	unspec to prevent elimination.
> >   > 	(call, call_value): Always USE the arg_pointer for TARGET_64BIT.
> >   > 	Use the new addmovdi3 insn to load the arg_pointer register.
> >   > 	(addmovdi3 and mov_from_r29_si): New insn and expand which prevent
> >   > 	r29 from being eliminated in call setups and millicode returns.
> > I haven't followed this discussion too closely.  Is this patch still needed
> > after some of the recent changes in how we compute liveness for the argument
> > pointer?
> 
> I think this needs to be reexamined.  Allan's ARG_POINTER_INVARIANT patch
> might not be needed now.

It's still needed.  The problem is that gcc thinks the arg pointer is
unchanged from the entry value to a function, even when the arg pointer
needs to be set to call other functions.

Actually, given the nature of the problem, I'm inclined to think that all
targets that use an arg pointer should probably define
ARG_POINTER_INVARIANT = 0.  Or equivalently, don't apply my
ARG_POINTER_INVARIANT patch and simply remove tests for arg_pointer_rtx in
rtx_unstable_p, rtx_varies_p, rtx_addr_can_trap_p, function_invariant_p,
loop_invariant_p, and possibly other places I've missed.

Here's the testcase again:

extern void abort(void);

char p;

int f1 (char **);
int f2 (char *, char **);

char *f3 (char *a, char *b)
{
  char *c = 0;

  if (f1 (&b) != 0)
    goto out;

  /* hppa64 passes bogus value for b */
  f2 (b, &c);

out:
  return c;
}

int f1 (char **x)
{
  if (*x != &p)
    abort ();
  return 0;
}

int f2 (char *a, char **b)
{
  if (a != &p)
    abort ();
  *b += 1;
  return 0;
}

int main (void)
{
  if (f3 (0, &p) != (char *) 0 + 1)
    abort ();
  return 0;
}

Results of compiling with -O2 -S for hppa64-hpux11-gcc built from CVS
of less that an hour ago.

	.LEVEL 2.0w
gcc2_compiled.:
	.IMPORT f1,ENTRY
	.IMPORT f2,ENTRY
	.text
	.align 8
	.EXPORT f3,ENTRY
f3
	.PROC
	.CALLINFO FRAME=128,CALLS,SAVE_RP,ENTRY_GR=3
	.ENTRY
	std %r2,-16(%r30)
	ldo -56(%r29),%r26	! r26 = &b = r29 - 56
	ldo 128(%r30),%r30
	std %r4,-104(%r30)
	copy %r27,%r4
	std %r25,-56(%r29)
	ldo -16(%r30),%r29
	b,l f1,%r2
	std %r0,-120(%r30)
	ldo -16(%r30),%r29	! arg pointer set to current frame
	ldo -120(%r30),%r25
	cmpib,= 0,%r28,L$0005
	copy %r4,%r27
L$0004
	ldd -120(%r30),%r28
L$0006
	ldd -144(%r30),%r2
	ldd -104(%r30),%r4
	bve (%r2)
	ldo -128(%r30),%r30
L$0005
	ldo -64(%r29),%r29	! r29 = curr_r30 - 16 - 64
	b,l f2,%r2
	ldd 8(%r29),%r26	! try to load b from r29 - 56, but
				! gcc misses fact that r29 has changed
	b L$0006
	ldd -120(%r30),%r28
	.EXIT
	.PROCEND
[snip]

-- 
Linuxcare.  Support for the Revolution.


From - Thu Nov 08 21:14:36 2018
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From: Thomas Marteaut <marteaut@esiee.fr>
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Subject: [parisc-linux] Les logs des deux machines
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This is a multi-part message in MIME format.
--------------73AF70C852DBEB8621980FB6
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit

A remarquer:
Il trouve bien les leds sur la B132
Il ne fait qu'une fois la sti
J'ai la liaison srie


Pour l'horloge de la 712, je me demande si la pile n'est pas  plat?




PS:Je les ai attach car tu n'es pas un fou du pine ou de elm
--------------73AF70C852DBEB8621980FB6
Content-Type: text/plain; charset=us-ascii;
 name="sti+frame"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="sti+frame"

The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02d7000
start_parisc(0x504d6c,0x504d6c,0x0,0x0)
PALO command line: 'HOME=/ TERM=LINUX console=tty root=/dev/sda3'
PALO initrd 0-0
model	00006010 00000481 00000000 00000000 7803b0d6 00000000 00000004 00000072 00000072
vers	0000000c
CPUID	vers 0 rev 0
model	9000/712
led_init: CPU_HVERSION 601
Searching for devices in PDC firmware... processor hpa 0xfffbe000
 an older box...
Found devices:
1. Gecko 80 GSC Core Graphics (10) at 0xf8000000, versions 0x1c, 0x0, 0x85, 0x0, 0x0
2. Gecko 80 Core BA (11) at 0xf0100000, versions 0x1c, 0x0, 0x81, 0x0, 0x0
3. Gecko 80 Core SCSI (10) at 0xf0106000, versions 0x1c, 0x0, 0x82, 0x0, 0x0
4. Gecko 80 Core Lan (802.3) (10) at 0xf0107000, versions 0x1c, 0x0, 0x8a, 0x0, 0x0
5. Gecko 80 Core RS-232 (10) at 0xf0105000, versions 0x1c, 0x0, 0x8c, 0x0, 0x0
6. Gecko 80 Core Centronics (10) at 0xf0102000, versions 0x1c, 0x0, 0x74, 0x0, 0x0
7. Gecko 80 Audio (10) at 0xf0104000, versions 0x1c, 0x0, 0x7b, 0x0, 0x0
8. Gecko 80 Core PC Floppy (10) at 0xf010a000, versions 0x1c, 0x0, 0x83, 0x0, 0x0
9. Gecko 80 Core PC Keyboard (10) at 0xf0108000, versions 0x1c, 0x0, 0x84, 0x0, 0x0
10. Gecko 80 Core PC Keyboard (10) at 0xf0108100, versions 0x1c, 0x0, 0x84, 0x0, 0x0
11. Gecko 80 (712/80) (0) at 0xfffbe000, versions 0x601, 0x0, 0x4, 0x0, 0x81
12. Gecko 80 (1) at 0xfffbf000, versions 0x38, 0x0, 0x9, 0x0, 0x0
That's a total of 12 devices.
CPU(s): 1 x PA7100LC (PCX-L) at 80.000000 MHz
Linux version 2.4.0-test10 (mklinux@pc5158a) (gcc version 2.96 20000925 (experimental)) #3 Wed Dec 6 09:49:48 CET 2000
free_bootmem(0x2d8000, 0x7d28000)
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=LINUX console=tty root=/dev/sda3
trap_init
Console: colour dummy device 80x25
Calibrating delay loop... 79.67 BogoMIPS
Memory: 125840k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xf0100000 found.
LED display at 00000000
parport_init_chip: initialize bidirectional-mode.
Found i82596 at 0xf0107000, IRQ 87
early initialization of device eth0 is deferred
Initializing Lasi PS/2-keyboard port at 0xf0108000...
Support for Lasi PS/2-psaux not yet available !
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
searching for word mode STI ROMs
STI ROM from PDC at f0080000
found potential STI ROM at f0080000
STI word mode ROM at f0080000
STI word mode ROM type 3
 supports 13 monitors
 conforms to STI ROM spec revision 8.04
 graphics id 2b4ded6d40a00499
 font start 000037d4
 region list 000037c0
 init_graph 00000808
 alternate code type 0
f8000000 g
3 text planes
1280 x 1024 screen resolution
   0 x    0 offscreen
2048 x 1024 layout
regions at f0080000 f9000000 f8100000 f8380000
regions at f8000000 f8000000 f8204000 f8000000
reent_lvl 0
save_addr 07f96800
monitor 1
in friendly mode: 0
power consumption 0 watts
freq ref 0
sti_mem_addr 07f96c00
Switching from PDC console
Console: switching to mono frame buffer device 160x64
fb0: STI Generic frame buffer device
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
eth0: 82596 at 0xf0107000, 08 00 09 6D C1 EC IRQ 87.
82596.c $Revision: 1.14 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c710 (SCSI-ID 7) at f0106100, IRQ 86
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: Good, target data areas are dma coherent
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: HP        Model: C3725S            Rev: 4299
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST31230N          Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 3, lun 0
Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
SCSI device sda: 4238836 512-byte hdwr sectors (2170 MB)
Partition check:
 sda: sda1 sda2 sda3
SCSI device sdb: 2051460 512-byte hdwr sectors (1050 MB)
 sdb: sdb1 sdb2 sdb3
searching for word mode STI ROMs
STI ROM from PDC at f0080000
found potential STI ROM at f0080000
STI word mode ROM at f0080000
STI word mode ROM type 3
 supports 13 monitors
 conforms to STI ROM spec revision 8.04
 graphics id 2b4ded6d40a00499
 font start 000037d4
 region list 000037c0
 init_graph 00000808
 alternate code type 0
f8000000 g
3 text planes
1280 x 1024 screen resolution
   0 x    0 offscreen
2048 x 1024 layout
regions at f0080000 f9000000 f8100000 f8380000
regions at f8000000 f8000000 f8204000 f8000000
reent_lvl 0
save_addr 07f3f400
monitor 1
in friendly mode: 0
power consumption 0 watts
freq ref 0
sti_mem_addr 07f3f800
Switching from PDC console
Console: switching to colour STI console 160x64
searching for byte mode STI ROMs
STI ROM from PDC at f0080000
found potential STI ROM at f0080000
STI word mode ROM at f0080000, ignored
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
IP-Config: Incomplete network configuration information.
eth0: link ok.
Trying to free nonexistent resource <f0107000-f010700b>
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kmem_create: Forcing size word alignment - nfs_fh
VFS: Mounted root (ext2 filesystem) readonly.
Unable to handle swap header version 16777216
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
Unable to handle swap header version 16777216
eth0: link ok.
NFS: NFSv3 not supported.
nfs warning: mount version older than kernel

--------------73AF70C852DBEB8621980FB6
Content-Type: text/plain; charset=us-ascii;
 name="sti+frame_B132"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="sti+frame_B132"

The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02d7000
start_parisc(0x504d6c,0x504d6c,0x0,0x0)
PALO command line: 'HOME=/ TERM=LINUX console=tty root=/dev/sdb3'
PALO initrd 0-0
model	00005030 00000481 00000000 02020202 78094fbe 100000f0 00000004 000000ba 000000ba
vers	00000008
cpuid	000001e8
CPUID	vers 15 rev 8
model	9000/778/B132L+
led_init: CPU_HVERSION 503
led_init: chassis info: model 2, lcd_width=0, cmd_delay=40, ret0=8, ret1=8
LED display at f0190000
Searching for devices in PDC firmware... processor hpa 0xfffbe000
a newer box...
Found devices:
1. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0, 0x0, 0x0, 0x0
2. Merlin+ 132 Dino RS-232 (10) at 0xfff83000, versions 0x22, 0x0, 0x8c, 0x0, 0x0
3. Merlin L2+ 132 (9000/778/B132L) (0) at 0xfffbe000, versions 0x503, 0x0, 0x4, 0x0, 0x81
4. Merlin+ L2 132 (1) at 0xfffbf000, versions 0x61, 0x0, 0x9, 0x0, 0x0
5. Merlin+ 132 Core BA (11) at 0xffd00000, versions 0x3e, 0x0, 0x81, 0x0, 0x0
6. Merlin+ 132 Core RS-232 (10) at 0xffd05000, versions 0x3e, 0x0, 0x8c, 0x0, 0x0
7. Merlin+ 132 Core SCSI (10) at 0xffd06000, versions 0x3e, 0x0, 0x82, 0x0, 0x0
8. Merlin+ 132 Core Centronics (10) at 0xffd02000, versions 0x3e, 0x0, 0x74, 0x0, 0x0
9. Merlin+ 132 Core Audio (10) at 0xffd04000, versions 0x3e, 0x4, 0x7b, 0x0, 0x0
10. Merlin+ 132 Core PC Keyboard (10) at 0xffd08000, versions 0x3e, 0x0, 0x84, 0x0, 0x0
11. Merlin+ 132 Core PC Keyboard (10) at 0xffd08100, versions 0x3e, 0x0, 0x84, 0x0, 0x0
12. Gecko GSC Core Graphics (10) at 0xf8000000, versions 0x16, 0x0, 0x85, 0x0, 0x0
13. Dino PCI Bridge (13) at 0xfff80000, versions 0x680, 0x3, 0xa, 0x0, 0x0
That's a total of 13 devices.
CPU(s): 1 x PA7300LC (PCX-L2) at 132.000000 MHz
Linux version 2.4.0-test10 (mklinux@pc5158a) (gcc version 2.96 20000925 (experimental)) #3 Wed Dec 6 09:49:48 CET 2000
free_bootmem(0x2d8000, 0x7d28000)
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=LINUX console=tty root=/dev/sdb3
trap_init
Console: colour dummy device 80x25
Calibrating delay loop... 87.86 BogoMIPS
Memory: 125840k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
parport_init_chip: initialize bidirectional-mode.
Initializing Lasi PS/2-keyboard port at 0xffd08000...
Support for Lasi PS/2-psaux not yet available !
Dino version 3.1 (bridge mode) found at 0xfff80000
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
searching for word mode STI ROMs
found potential STI ROM at f8000000
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
busdevice_alloc_irq(0xc02c1c68): No known LASI/ASP/WAX owns device at 0xfff83000 !
IRQ not found for serial device at 0xfff83000
Warning : device (10, 0x22, 0x0, 0x8c, 0x0) NOT claimed by serial device 715/new or similiar
ttyS00 at iomem 0xffd05800 (irq = 90) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
Linux Tulip driver version 0.9.10 (September 6, 2000)
eth0: Digital DS21143 Tulip rev 48 at 0xff00, 00:60:B0:EB:BB:3D, IRQ 96.
eth0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 19, function 0
sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...
sym53c8xx: setting PCI_COMMAND_MASTER...(fix-up)
sym53c8xx: 53c875 detected 
sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 99
sym53c875-0: NCR clock is 40585KHz
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xf0ffe000
sym53c875-0: restart (scsi reset).
sym53c875-0: Downloading SCSI SCRIPTS.
scsi0 : sym53c8xx - version 1.6b
  Vendor: SEAGATE   Model: ST34572WS         Rev: HP00
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym53c875-0-<6,0>: tagged command queue depth set to 8
sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 86
scsi1: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi1: Good, target data areas are dma coherent
scsi1: test 1 completed ok.
scsi1 : LASI/Simple 53c7xx
  Vendor: HP        Model: C3725S            Rev: 4299
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 6, lun 0
Detected scsi disk sdb at scsi1, channel 0, id 3, lun 0
sym53c875-0-<6,0>: wide msgout: 1-2-3-1.
sym53c875-0-<6,0>: wide msgin: 1-2-3-1.
sym53c875-0-<6,0>: wide: wide=1 chg=0.
sym53c875-0-<6,0>: wide msgout: 1-2-3-1.
sym53c875-0-<6,0>: wide msgin: 1-2-3-1.
sym53c875-0-<6,0>: wide: wide=1 chg=0.
sym53c875-0-<6,0>: sync msgout: 1-3-1-c-10.
sym53c875-0-<6,0>: sync msg in: 1-3-1-c-f.
sym53c875-0-<6,0>: sync: per=12 scntl3=0x90 scntl4=0x0 ofs=15 fak=0 chg=0.
sym53c875-0-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
Partition check:
 sda: unknown partition table
SCSI device sdb: 4238836 512-byte hdwr sectors (2170 MB)
 sdb: sdb1 sdb2 sdb3
searching for word mode STI ROMs
found potential STI ROM at f8000000
searching for byte mode STI ROMs
found potential STI ROM at f8000000
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
IP-Config: Incomplete network configuration information.
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kmem_create: Forcing size word alignment - nfs_fh
VFS: Mounted root (ext2 filesystem) readonly.
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
NFS: NFSv3 not supported.
nfs warning: mount version older than kernel

--------------73AF70C852DBEB8621980FB6--


From - Thu Nov 08 21:14:36 2018
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From: Thomas Marteaut <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Sorry
Date: Wed, 06 Dec 2000 11:05:31 +0100
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Hi all,

	I am sorry for the last message. It should have been an internal mail
(That's why it's in French). I am also sorry
for the attached files. Nevertheless, we are dealing with the new source
and we are looking at how do B132 and 712 boot.
So,

sti+frame shows the dmesg of 712 for our kernel that supports STI
console and framebuffer. That's why we have two searches for sti memory
space but they are different!
Helge, you can notice that now, on our 712, led DISPLAY is at
0x00000000! 

sti+frame_B132 shows the dmesg for the same kernel but with a B132+
workstation.

And the RTC does print Cannot access the Hardware Clock via any method
on both machines!

	Again, I am sincerely sorry for the message but I hope this one will
help...

Bye, Thomas
ESIEE Team


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i'm going to explain my thoughts on how the stacks work, (a) so someone
can point out how stupid i am and (b) so i can get it straight in my
own head.  i find explaining things to other people helps me understand.
you're my unpaid code-therapists :-)

we have bprm->p (see definition in <linux/binfmts.h>)

this is initialised to PAGE_SIZE * MAX_ARG_PAGES - sizeof (void *).
ie 32 pages less one pointer.

copy_strings() (exec.c) copies the strings involved from argv and envp
to some pages which it allocates on behalf of the user, starting at the
top and working down (oooh, directionalist asumptions....)

setup_arg_pages() (exec.c, called from binfmt_elf.c) adds the stack_base
(more on this later) to bprm->p and uses this address to map the pages
into the task's address space.

then create_elf_tables plonks a lot more stuff onto the stack (going
down, of course), including a pile of ELF entries, the envp pointers,
the argv pointers, and finally at the bottom envp, argv & argc.

finally, start_thread() is called, passing it a pointer to argc, which
happens to be just right for an x86 procedure call since it takes all
arguments on the stack.

why did this downwards-growing monstrosity ever work for us before?
because we set our stack_base to 0x2000'0000 so we started 32 pages from
that base and kept going down.  this was enough for everything except for
programs like procmail's configuration which tries to break it.  oops.
and we are wasting up to 128k on the stack.  double-oops.

our crt1.o depends on this layout now.  at least it depends on bits of it.
i can move some stuff around, like the strings, because they're only
referenced through the other pointers.

so how am i going to fix this mess?  i'm not sure.  the problem gets
uglier every time i stare at it.  i'm sure the solution involves macros
of some kind -- sp = place_on_stack(sp, addr, len).  but the strings
are then a pain...

i need to think about this some more.  and i need a machine to test this
on, which i can have tomorrow, hopefully.

P.S.  Thanks, you've really helped me come to terms with the stacks in
my life.

-- 
Revolutions do not require corporate support.


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] hppa64 gcc sizeof() bug?
Date: Wed, 6 Dec 2000 11:52:03 +0000
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To: Alan Modra <alan@linuxcare.com.au>
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Hi Alan,
  The following shows the compiler getting confused over the size
of a struct.  This is with a gcc/binutils built since the last
fix you did for me.

Richard


[rhirst@rhirst play]$ cat tc.c


typedef unsigned int u32;
#define NULL ((void *)0)

struct kernel_sym32 {
        u32 value;
        char name[60];
};

extern int sys_get_kernel_syms(void *);
extern int thing(struct kernel_sym32 *table);

int sys32_get_kernel_syms(struct kernel_sym32 *table)
{
        int len, i;

        len = sizeof (struct kernel_sym32);
        for (i = 0; i < len; i++, table += sizeof (struct kernel_sym32)) {
                if (thing(table))
                        break;
        }
        return i;
}


[rhirst@rhirst play]$ hppa64-linux-gcc -S -o tc.s -O2 tc.c
[rhirst@rhirst play]$ cat tc.s


        .LEVEL 2.0w
gcc2_compiled.:
        .text
        .align 8
.globl sys32_get_kernel_syms
                .type            sys32_get_kernel_syms,@function
sys32_get_kernel_syms:
        .PROC
        .CALLINFO FRAME=128,CALLS,SAVE_RP,ENTRY_GR=6
        .ENTRY
        std %r2,-16(%r30)
        ldo 128(%r30),%r30
        std %r6,-128(%r30)
        ldi 64,%r6		<<< Good, struct is 64 bytes
        std %r5,-120(%r30)
        ldi 0,%r5
        std %r4,-112(%r30)
        copy %r27,%r4
        std %r3,-104(%r30)
        copy %r26,%r3
.L3:
        copy %r3,%r26
        ldo 4096(%r3),%r3	<<< BAD struct is not 4096 bytes!
        cmpb,<= %r6,%r5,.L4
        ldo -16(%r30),%r29
        b,l thing,%r2
        nop
        copy %r4,%r27
        cmpib,= 0,%r28,.L5
        ldo 1(%r5),%r19
.L4:
        copy %r5,%r28
        ldd -144(%r30),%r2
        ldd -120(%r30),%r5
        ldd -112(%r30),%r4
        ldd -104(%r30),%r3
        bve (%r2)
        ldd,mb -128(%r30),%r6
.L5:
        b .L3
        extrd,s %r19,63,32,%r5
        .EXIT
        .PROCEND
.Lfe1:
        .size   sys32_get_kernel_syms,.Lfe1-sys32_get_kernel_syms
        .ident  "GCC: (GNU) 2.96 20000925 (experimental)"
[rhirst@rhirst play]$ 


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] hppa64 gcc sizeof() bug?
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On Wed, Dec 06, 2000 at 11:52:03AM +0000, Richard Hirst wrote:
> Hi Alan,
>   The following shows the compiler getting confused over the size
> of a struct.  This is with a gcc/binutils built since the last
> fix you did for me.
> 
> Richard
> 
> 
> [rhirst@rhirst play]$ cat tc.c
> 
> 
> typedef unsigned int u32;
> #define NULL ((void *)0)
> 
> struct kernel_sym32 {
>         u32 value;
>         char name[60];
> };
> 
> extern int sys_get_kernel_syms(void *);
> extern int thing(struct kernel_sym32 *table);
> 
> int sys32_get_kernel_syms(struct kernel_sym32 *table)
> {
>         int len, i;
> 
>         len = sizeof (struct kernel_sym32);
>         for (i = 0; i < len; i++, table += sizeof (struct kernel_sym32)) {
>                 if (thing(table))
>                         break;
>         }
>         return i;
> }

Just changed it to 'table += 64' and it still generates code that
adds 4096, so sizeof is not relevant.

Richard


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] hppa64 gcc sizeof() bug?
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On Wed, Dec 06, 2000 at 11:52:03AM +0000, Richard Hirst wrote:
> Hi Alan,
>   The following shows the compiler getting confused over the size
> of a struct.  This is with a gcc/binutils built since the last
> fix you did for me.

As Alan has kindly pointed out to me, I goofed.  In my defence, I
did copy the garbage code from the sparc64 port ;)

Richard


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] hppa64 gcc sizeof() bug?
Date: Wed, 06 Dec 2000 10:28:12 -0800
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Richard Hirst wrote:

> > int sys32_get_kernel_syms(struct kernel_sym32 *table)
...
> Just changed it to 'table += 64' and it still generates code that
> adds 4096, so sizeof is not relevant.

Right. sizeof() works fine.
table points to something that is 4096/64 (64 bytes) in size.
table+=1 results in adding 4096/64 to table.
The code should read "((char *) table) += 64" or "table++".

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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To: Thomas Marteaut <marteaut@esiee.fr>
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Thomas Marteaut wrote:
> Hi all,
> 
> 	I am sorry for the last message.

np. You followed up with an explanation in english.

> Helge, you can notice that now, on our 712, led DISPLAY is at
> 0x00000000! 

Could be a hint the 712 has no external LED's?


> And the RTC does print Cannot access the Hardware Clock via any method
> on both machines!

"RTC" here is hwclock program.
Is CONFIG_GENRTC enabled?
It is by default for 32-bit kernels but not yet for 64-bit.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Thu, 6 May 1999, Philipp Rumpf wrote:
> 
> Where are the bootloader sources atm ?
> 

Jason's sources are at:

ftp://puffin.external.hp.com/pub/parisc/src/boot_rel_0.2.tar.gz

I'm not quite sure how complete they are.  The pain is that because of our
lack of ELF32 in binutils these really need to be linked on an HPUX box.

The Puffin Group is working with HP to have a box called
puffinpa.external.hp.com to act first as an HPUX build machine to solve
the problem of not everyone having access to HPUX yet.

- Alex




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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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In-Reply-To: <200012051942.OAA24760@hiauly1.hia.nrc.ca> from "John David Anglin" at Dec 5, 2000 02:42:50 pm
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> > stage1/xgcc -Bstage1/ -B/usr/local/hppa1.1-hp-hpux10.20/bin/ -c  -DIN_GCC    -g -O3 -fPIC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H    -I. -I. -I../../gcc -I../../gcc/. -I../../gcc/config -I../../gcc/../include ../../gcc/c-typeck.c -o c-typeck.o
> > ../../gcc/c-typeck.c: In function `really_start_incremental_init':
> > ../../gcc/c-typeck.c:5180: output_operand: invalid expression as operand
> > ../../gcc/c-typeck.c:5180: Internal compiler error in output_operand_lossage, at final.c:3397
> > confused by earlier errors, bailing out
> 
> This error results from the following substitution which occurs in the
> "lreg" pass.  Here is the "lreg" rtl:
> 
> (insn 67 926 927 (set (reg/f:SI 107)
>         (mem/u:SI (lo_sum:SI (reg/f:SI 309)
>                 (unspec:SI[
>                         (symbol_ref:SI ("constructor_max_index"))
> 		    ]  0)) 0)) 82 {*pa.md:2352} (insn_list 65 (nil))
>     (expr_list:REG_EQUIV (mem/u:SI (lo_sum:SI (reg/f:SI 309)
> 		(unspec:SI[
> 			(symbol_ref:SI ("constructor_max_index"))
> 		    ]  0)) 0)
>         (expr_list:REG_DEAD (reg/f:SI 309)
>             (nil))))
> 
> ...
> 
> (insn 569 619 627 (set (reg/f:SI 232)
>         (reg/f:SI 107)) 69 {*pa.md:2099} (nil)
>     (expr_list:REG_DEAD (reg/f:SI 107)
>         (nil)))
> 
> Then, after the "greg" pass we get for insn 569:
> 
> (insn 569 619 627 (set (reg/f:SI 21 %r21)
>         (mem/u:SI (lo_sum:SI (reg/f:SI 8 %r8)
> 		(unspec:SI[
> 			(symbol_ref:SI ("constructor_max_index"))
> 		    ]  0)) 0)) 69 {*pa.md:2099} (nil)
>     (nil))

After further investigation, this appears to be a reload problem.  Reload
substitutes the mem for psuedo 107 because reg_equiv_mem[107] is set
to the above mem rtx and reg_renumber[107] = -1 (ie, there is no hard register
for the psuedo).  The function strict_memory_address_p is used to check
whether the the memory address is valid for the mode.  This uses
GO_IF_LEGITIMATE_ADDRESS.  The address is legit so reg_equiv_mem[107] gets
set.  The problem is reload doesn't appear to check if the insns resulting
from the substitution still match the conditions for the insn.  If it did,
it would find that the substituted mem is not a valid move_operand.

Any thoughts on what is the best approach to fix this?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Daniel Engstrom <danne@telia.com>
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Subject: [parisc-linux] SCSI on ASP systems
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Xref: news.gmane.org gmane.linux.ports.parisc:8795

As noted earlier SCSI (sim700) don not work on systems with an ASP. Below
is some of the error messages I get. It seems to fail on the first write
command (read commands seem to work). I dont have any idea how the 53c700
is supposed to work and I cant find any docs on the net. Does anyone on
the list have any idea?

/Daniel


# palo -I \
> -b boot/iplboot \
> -k boot/vmlinux /dev/sda
palo version 0.8 bame@noam Tue Oct 31 14:18:23 MST 2000
F0 partition start sector 62 length 36766
check_bootloader 181
ipl: addr 32768 size 24576 entry 0x0 ko 0 ksz 0 rdo 0 rdsz 0
<..>
scsi0: Phase mismatch, phase MSGIN (7) at script[0x31b]
Write (10) 00 00 00 03 c0 00 00 80 00
scsi0: DOUT sg 117, old 02ac4c00/00000400, new 02ac4e00/00000200 (32)
scsi0: Serious error, sstat0 = 04
scsi0: Chip register contents:
 (script[0] at virt c2fa0000, bus 2fa0000)
 00  sien:  af  sdid:  20  scntl1:20  scntl0:d4
 04  socl:  06  sodl:  00  sxfer: 00  scid:  80
 08  sbcl:  00  sbdl:  00  sidl:  00  sfbr:  00
 0C  sstat2:06  sstat1:00  sstat0:00  dstat: 00
 10
 14  ctest3:21  ctest2:35  ctest1:0b  ctest0:00
 18  ctest7:00  ctest6:99  ctest5:00  ctest4:00
 1C  temp:  00000000
 20              ctest8:ff  istat: 06  dfifo: 00
 24  dbc:   0e000001  dnad:  02fa5cde  dsp:   02fa5038
 30  dsps:  02fa5cde
 34  dmode: 80
 38  dcntl: 80  dwt:   00  dien:  1d
 3C
scsi0: Unexpected stacked interrupt, istat 06, sstat0 08, dstat 00             p
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI bus and
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 02fa5038 (script[0x140e]), dsps = 02fa5cde, target = 0
scsi0: Failing command for ID5
scsi0: sim700_intr_handle() called with no interrupt
scsi0: Negotiating async transfers for ID 5
scsi0: Response to host SDTR = 00 00
scsi0: Phase mismatch, phase STATUSIN (3) at script[0x22d]
Request Sense 00 00 00 ff 00
scsi0: DIN sg 127, old 02fa8a00/00000100, new 02fa8a12/000000ee (0)
scsi0: Phase mismatch, phase MSGIN (7) at script[0x321]
Write (10) 00 00 00 08 40 00 00 80 00
scsi0: DOUT sg 120, old 029a0800/00000400, new 029a0a00/00000200 (32)
SCSI disk error : host 0 channel 0 id 5 lun 0 return code = 10
 I/O error: dev 08:00, sector 2112


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] SCSI on ASP systems
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Daniel Engstrom wrote:
> I dont have any idea how the 53c700
> is supposed to work and I cant find any docs on the net.

And you've looked at the LASI docs off the www.parisc-linux.org?

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] SCSI on ASP systems
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In-Reply-To: <Pine.LNX.4.21.0012070011280.8673-100000@zaphod.halden.lillfab.se>; from danne@telia.com on Thu, Dec 07, 2000 at 12:23:00AM +0100
Xref: news.gmane.org gmane.linux.ports.parisc:8797

On Thu, Dec 07, 2000 at 12:23:00AM +0100, Daniel Engstrom wrote:
> As noted earlier SCSI (sim700) don not work on systems with an ASP. Below
> is some of the error messages I get. It seems to fail on the first write
> command (read commands seem to work). I dont have any idea how the 53c700
> is supposed to work and I cant find any docs on the net. Does anyone on
> the list have any idea?
> 
> /Daniel
> 
> 
> # palo -I \
> > -b boot/iplboot \
> > -k boot/vmlinux /dev/sda

Can you try adding

	sim700=noneg:0xff,nodisc:0xff

to your boot comamnd line and let me know what happens.

If that fails after very little disk activity, you could try

	sim700=noneg:0xff,nodisc:0xff,debug:0x2ff

and send me the (large) debug output.

Looks like oyur disk is disconnecting after an odd number of sectors,
which might be unusual.

Richard


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From: Richard Henderson <rth@redhat.com>
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Subject: Re: pa reload problem
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Xref: news.gmane.org gmane.linux.ports.parisc:8798

On Wed, Dec 06, 2000 at 03:41:06PM -0500, John David Anglin wrote:
> >     (expr_list:REG_EQUIV (mem/u:SI (lo_sum:SI (reg/f:SI 309)
> > 		(unspec:SI[
> > 			(symbol_ref:SI ("constructor_max_index"))
> > 		    ]  0)) 0)

This appears to be the same sort of bug as in compile/20001205-1.c
except that an unspec is involved instead of an asm_operands.

I wonder if the best solution is to avoid local-alloc creating
REG_EQUIV notes for every little thing under the sun.  Allow
only general_operand or something.


r~


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: pa reload problem
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Xref: news.gmane.org gmane.linux.ports.parisc:8799

> On Wed, Dec 06, 2000 at 03:41:06PM -0500, John David Anglin wrote:
> > >     (expr_list:REG_EQUIV (mem/u:SI (lo_sum:SI (reg/f:SI 309)
> > > 		(unspec:SI[
> > > 			(symbol_ref:SI ("constructor_max_index"))
> > > 		    ]  0)) 0)
> 
> This appears to be the same sort of bug as in compile/20001205-1.c
> except that an unspec is involved instead of an asm_operands.
> 
> I wonder if the best solution is to avoid local-alloc creating
> REG_EQUIV notes for every little thing under the sun.  Allow
> only general_operand or something.

I am testing the following.  The bootstrap has gone well past the above
point.  Maybe some generalization of this would work in general or
some similar control could be added to local-alloc regarding the creation
of REG_EQUIV notes.  This method works well here because there are no
valid substitutions of PIC mem's on the PA as far as I am aware.  Another
method might be to scan the insn list and check that the substitution is
valid for all the insns that use the register before deciding that a
REG_EQUIV note should be added.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2000-12-06  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa.h (PIC_ADDRESS_P): Define macro to recognize PIC address.
	* reload1.c (reload): Don't set reg_equiv_mem if PIC_ADDRESS_P
	is defined and true.

--- config/pa/pa.h.orig	Sat Dec  2 02:43:02 2000
+++ config/pa/pa.h	Wed Dec  6 17:27:21 2000
@@ -1091,6 +1091,14 @@
    || GET_CODE (X) == HIGH) 						\
    && (reload_in_progress || reload_completed || ! symbolic_expression_p (X)))
 
+/* Recognize a PIC address.  */
+
+#define PIC_ADDRESS_P(X)			\
+   (GET_CODE (X) == LO_SUM			\
+    && GET_CODE (XEXP (X, 0)) == REG            \
+    && REG_OK_FOR_BASE_P (XEXP (X, 0))		\
+    && GET_CODE (XEXP (X, 1)) == UNSPEC)	\
+
 /* Include all constant integers and constant doubles, but not
    floating-point, except for floating-point zero.
 
--- reload1.c.orig	Thu Nov 30 17:39:21 2000
+++ reload1.c	Wed Dec  6 17:18:27 2000
@@ -881,8 +881,14 @@
 	  {
 	    rtx x = eliminate_regs (reg_equiv_memory_loc[i], 0, NULL_RTX);
 
+#ifndef PIC_ADDRESS_P
 	    if (strict_memory_address_p (GET_MODE (regno_reg_rtx[i]),
 					 XEXP (x, 0)))
+#else
+	    if (strict_memory_address_p (GET_MODE (regno_reg_rtx[i]),
+					 XEXP (x, 0))
+		&& ! PIC_ADDRESS_P (XEXP (x, 0)))
+#endif
 	      reg_equiv_mem[i] = x, reg_equiv_address[i] = 0;
 	    else if (CONSTANT_P (XEXP (x, 0))
 		     || (GET_CODE (XEXP (x, 0)) == REG


From - Thu Nov 08 21:14:37 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: pa reload problem
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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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> I am testing the following.  The bootstrap has gone well past the above
> point.  Maybe some generalization of this would work in general or

Failure:

stage1/xgcc -Bstage1/ -B/usr/local/hppa1.1-hp-hpux10.20/bin/ -c  -DIN_GCC    -g -O3 -fPIC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes   -DHAVE_CONFIG_H    -I. -Icp -I../../gcc -I../../gcc/cp -I../../gcc/config -I../../gcc/../include ../../gcc/cp/decl.c -o cp/decl.o
../../gcc/cp/decl.c: In function `duplicate_decls':
../../gcc/cp/decl.c:3760: Internal error: Segmentation fault.
Please submit a full bug report.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[2]: *** [cp/decl.o] Error 1
make[2]: Leaving directory `/xxx/gnu/gcc-2.97/objdir/gcc'
make[1]: *** [stage_c] Error 2
make[1]: Leaving directory `/xxx/gnu/gcc-2.97/objdir/gcc'
make: *** [bootstrap-lean] Error 2

Hopefully, this is a different problem.

[snip]
decls_match warn_extern_redeclared_static duplicate_decls {GC 6819k -> 2774k} {GC 5707k -> 2827k}
Program received signal SIGSEGV, Segmentation fault0x35c264 in make_reorder_chain_1 (bb=0x401a3408, prev=0x401a3408)
    at ../../gcc/bb-reorder.c:409
409           next = (taken e_taken : e_fall)->dest;
(gdb) p taken
$1 = 1
(gdb) p e_taken->dest
Cannot access memory at address 0xc
(gdb) p e_fall->dest
$2 = (struct basic_block_def *) 0x401a3440

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] WAX research
Date: Wed, 06 Dec 2000 21:59:48 -0500
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I've spent some time trying to evaluate what it would be like to get WAX
support into Linux, and have nothing new to report.

Why this mail?  Because I actually dug through some code and thought I'd
mail it here so it'd get archived and because maybe someone here has
something to add.

HP hasn't released docs on WAX and I can see why.  WAX hasn't been used
in ages (the latest one is probably the D270, but they are in all 715s),
and finding the docs is probably hard.  

So... alternative information that's a bit hard to find...

1. OpenBSD

There is some mention of WAX in here, but it's ancient.  Maybe I'm not
looking at the latest version, it is stamped with 

/*      $OpenBSD: wax.c,v 1.1 1998/11/23 03:04:10 mickey Exp $  */

The file in question is src/sys/arch/hppa/dev/wax.c.  You can get
download instructions from http://www.openbsd.org/hppa.html .   

That version of wax.c just has some WAX detection code, although we know
how to do that already.

2. Mach4/Lites

You can get this code from
flux.cs.utah.edu/ftp://flux/mach/ALPHA/pa-snapshot2.tar.gz

I had actually thought that these guys had seen WAX code under NDA, but
the docs say that wax is unsupported.  The code for wax in
usr/src/mach4/mach4-parisc/kernel/hpsgc/busconf.c looks like the code
for asp with the variables replaced.  It looks like this is a dead end
too.

Mach4 actually also has some viper and ASP code that might be helpful.

If anyone has any corrections on any of this, or anything else to add,
let me know.  If there's some public info to go on, it'd enable someone
to actually build up WAX support.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Mike Hibler <mike@fast.cs.utah.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re:  [parisc-linux] WAX research
Date: Wed, 6 Dec 2000 20:31:24 -0700 (MST)
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We have a copy of the WAX ERS.  I think I have sent out the drawing #
in the past, I will do so again tomorrow if it would help.  I would send
a copy of the doc to someone if I had some way of being sure that it was
legal to do so.

The Mach WAX code looks a lot like ASP code because the WAX looks a lot
like the ASP.  As I recall, the code worked ok for us though we didn't
spend a lot of time on it.  I think I hacked it up in an afternoon, and
it shows.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] A500 status update
Date: Wed, 6 Dec 2000 22:34:55 -0800 (PST)
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Good News!

*** A500 is starting to come alive! ***

Kudos to (in alpha order): amodra, danglin dhd, ggg (myself), jsm, pb, rhirst
and others names I just can't think of right now.
Kudos for long hours on the 64-bit specific issues: Toolchain, VM,
Boot loader, PDC wrappers, PAT PDC inventory, 32->64-bit syscall translators,
device drivers, kernel module support, etc....Output log is below.

TODO:
o sym53c896 driver is quite verbose at boot...do we still need this?
o kernel message buffer gets dumped again when "Switching from PDC console"
o mke2fs will sometimes crash the system.  Typical symptom of I/O MMU
  support (SBA driver) not handling Scatter-Gather mappings correctly.
  That's my problem. However I was not able to reproduce it yet.
o dd to raw disk isn't working right. "No space left on device".
  See the output below.
o don't see Acenic driver output. I've got CONFIG_ACENIC=y and the device
  is definitely seen by PCI.

good night!
grant


Firmware Version  40.32

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      440  MHz   Active                 Functional         512 KB   1 MB
      1      440  MHz   Idle                   Functional         512 KB   1 MB

  Central Bus Speed (in MHz)  :        111  
  Available Memory            :     262144  KB
  Good Memory Required        :      11468  KB

   Primary boot path:    0/0/1/1.15          
   Alternate boot path:  0/0/2/1.15          
   Console path:         0/0/4/0.0           
   Keyboard path:        0/0/4/0.0           

 WARNING:  The non-destructive test bit was set, so memory was not tested 
            destructively.  Information only, no action required. 


---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > in io

I/O MODULE INFORMATION

                        Path   Slot                          IODC  
Type                    (dec)  Number    HVERSION  SVERSION  Vers  
----                    -----  ------    --------  --------  ----  
System bus adapter      0                0x5820    0xb10     0x0   
Local bus adapter       0/0    4         0x7820    0xa00     0x0     
Local bus adapter       0/2    1         0x7820    0xa00     0x0     
Local bus adapter       0/4    2         0x7820    0xa00     0x0     
Local bus adapter       0/6    3         0x7820    0xa00     0x0     

PCI DEVICE INFORMATION
                                Path              Vendor  Device  Bus  Slot
Description                     (dec)               Id      Id     #    #
-----------                     -----              ----    ----   ---  ---
Ethernet cntlr                  0/0/0/0           0x1011  0x19    0    Built_In
SCSI bus cntlr                  0/0/1/0           0x1000  0xb     0    Built_In
SCSI bus cntlr                  0/0/1/1           0x1000  0xb     0    Built_In
SCSI bus cntlr                  0/0/2/0           0x1000  0xf     0    Built_In
SCSI bus cntlr                  0/0/2/1           0x1000  0xf     0    Built_In
Comp. ser cntlr                 0/0/4/0           0x103c  0x1048  0    Built_In
Comp. ser cntlr                 0/0/5/0           0x103c  0x1048  0    Built_In
Ethernet cntlr                  0/2/0/0           0x12ae  0x1     16   1
SCSI bus cntlr                  0/4/0/0           0x1000  0xb     32   2
SCSI bus cntlr                  0/4/0/1           0x1000  0xb     32   2
PCI-to-PCI bridge               0/6/0/0           0x1011  0x26    48   4
  SCSI bus cntlr                0/6/0/0/4/0       0x1000  0xb     49   4
  SCSI bus cntlr                0/6/0/0/4/1       0x1000  0xb     49   4
  Ethernet cntlr                0/6/0/0/6/0       0x1011  0x19    49   4
  Ethernet cntlr                0/6/0/0/7/0       0x1011  0x19    49   4
PCI-to-PCI bridge               0/6/0/0           0x1011  0x26    48   4
PCI-to-PCI bridge               0/6/2/0           0x1011  0x24    48   3
  Ethernet cntlr                0/6/2/0/4/0       0x1011  0x9     50   3
  Ethernet cntlr                0/6/2/0/5/0       0x1011  0x9     50   3
  Ethernet cntlr                0/6/2/0/6/0       0x1011  0x9     50   3
  Ethernet cntlr                0/6/2/0/7/0       0x1011  0x9     50   3
PCI-to-PCI bridge               0/6/2/0           0x1011  0x24    48   3

Main Menu: Enter command or menu > bo lan
Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Network Station Address 00306e-03799f
System IP Address 15.8.80.78
Server IP Address 15.8.81.247

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@hpisp747 Wed Nov  8 21:40:37 PST 2000
0/vmlinux 3170434 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa '
Kernel: partition 0 file /vmlinux
ELF64 executable

Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 1804864 mediaptr 0x1000
Segment 1 load 002ba000 size 428968 mediaptr 0x1ba000
Segment 2 load 00324000 size 376832 mediaptr 0x223000
branching to kernel entry point 0x00100000
Set default PSW W bit to 1
PDC Console Initialized
The 64-bit Kernel has started...
Enabled FP coprocessor
If this is the LAST MESSAGE YOU SEE, you're probably using
32-bit millicode by mistake.
Free memory starts at: 0xc03c3000
start_parisc(0x504ce8,0x504ce8,0x0,0x0)
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa '
PALO initrd 0-0
model   00005cb0 00000491 00000000 00000001 23355fdc 100000f0 00000008 000000b2 000000b2
vers    00000300
cpuid   0000022a
CPUID   vers 17 rev 10
model   9000/800/A500-44
Searching for devices in PDC firmware... processor hpa 0xfffffffffffa0000
Found devices:
1. Crescendo 440 (0) at 0xfffffffffffa0000, versions 0x5cb, 0x0, 0x4, 0x0, 0x91
2. Crescendo 440 (0) at 0xfffffffffffa2000, versions 0x5cb, 0x0, 0x4, 0x0, 0x91
3. Crescendo Memory (1) at 0xfffffffffed08000, versions 0x9b, 0x0, 0x9, 0x0, 0x0
4. Astro BC Runway Port (12) at 0xfffffffffed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
5. Elroy PCI Bridge (13) at 0xfffffffffed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. Elroy PCI Bridge (13) at 0xfffffffffed34000, versions 0x782, 0x0, 0xa, 0x0, 0x0
7. Elroy PCI Bridge (13) at 0xfffffffffed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
8. Elroy PCI Bridge (13) at 0xfffffffffed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
That's a total of 8 devices.
CONFIG_SMP disabled - not claiming addional CPUs
Warning : device (0, 0x5cb, 0x0, 0x4, 0x0) NOT claimed by CPU PARISC
CPU(s): 1 x PA8500 (PCX-W) at 440.000000 MHz
Linux version 2.4.0-test10 (grundler@hpisp747) (gcc version 2.96 20000925 (experimental)) #6 Wed Dec 6 17:14:11 PST 2000
free_bootmem(0x3c5000, 0xfc3b000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 65536
zone(0): 32768 pages.
zone(1): 32768 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=LINUX root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa 
trap_init
Calibrating delay loop... 878.18 BogoMIPS
Memory: 249052k available
Dentry-cache hash table entries: 32768 (order: 7, 524288 bytes)
Buffer-cache hash table entries: 16384 (order: 5, 131072 bytes)
Page-cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 16384 (order: 6, 262144 bytes)
POSIX conformance testing by UNIFIX
lba version TR4.0 (0x5) found at 0xfffffffffed30000
lba range[2] : ignoring GMMIO (0xfffffff804000000)
PCI Found 00:00 [1011/0019] 000200 00
PCI Found 00:08 [1000/000b] 000100 00
PCI Found 00:09 [1000/000b] 000100 00
PCI Found 00:10 [1000/000f] 000100 00
PCI Found 00:11 [1000/000f] 000100 00
PCI Found 00:20 [103c/1048] 000700 00
PCI Found 00:28 [103c/1048] 000700 00
PCI: dev PCI device 1000:000b type 64-bit
PCI: dev PCI device 1000:000b type 64-bit
PCI: dev PCI device 1000:000b type 64-bit
PCI: dev PCI device 1000:000b type 64-bit
lba version TR4.0 (0x5) found at 0xfffffffffed34000
lba range[2] : ignoring GMMIO (0xfffffff904000000)
PCI Found 10:00 [12ae/0001] 000200 00
lba version TR4.0 (0x5) found at 0xfffffffffed38000
lba range[2] : ignoring GMMIO (0xfffffffa04000000)
PCI Found 20:00 [1000/000b] 000100 00
PCI Found 20:01 [1000/000b] 000100 00
PCI: dev PCI device 1000:000b type 64-bit
PCI: dev PCI device 1000:000b type 64-bit
PCI: dev PCI device 1000:000b type 64-bit
PCI: dev PCI device 1000:000b type 64-bit
lba version TR4.0 (0x5) found at 0xfffffffffed3c000
lba range[2] : ignoring GMMIO (0xfffffffb04000000)
PCI Found 30:00 [1011/0026] 000604 01
PCI Found 30:10 [1011/0024] 000604 01
PCI Found 31:20 [1000/000b] 000100 00
PCI Found 31:21 [1000/000b] 000100 00
PCI Found 31:30 [1011/0019] 000200 00
PCI Found 31:38 [1011/0019] 000200 00
PCI : ignoring 30:00.0 PCI-PCI bridge - I/O BASE not configured
PCI Found 32:20 [1011/0009] 000200 00
PCI Found 32:28 [1011/0009] 000200 00
PCI Found 32:30 [1011/0009] 000200 00
PCI Found 32:38 [1011/0009] 000200 00
PCI : ignoring 30:02.0 PCI-PCI bridge - I/O BASE not configured
PCI: dev PCI device 1000:000b type 64-bit
PCI: dev PCI device 1000:000b type 64-bit
PCI: dev PCI device 1000:000b type 64-bit
PCI: dev PCI device 1000:000b type 64-bit
SBA found Astro 2.1 at 0xfffffffffed00000
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
request_module[parport_lowlevel]: Root fs not mounted
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at port 0x0080 (irq = 132) is a 16550A
PCIBIOS: Enabling device 00:05.0 (0007 -> 0147)
ttyS01 at port 0x00c0 (irq = 133) is a 16550A
Linux Tulip driver version 0.9.10 (September 6, 2000)
PCIBIOS: Setting latency timer of 00:00.0 to 128
eth0: Digital DS21143 Tulip rev 65 at 0x0, 00:30:6E:03:79:9F, IRQ 128.
eth0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
PCIBIOS: Enabling device 31:06.0 (0007 -> 0147)
PCIBIOS: Setting latency timer of 31:06.0 to 128
eth1: Digital DS21143 Tulip rev 65 at 0x30200, 00:10:83:7B:0A:3E, IRQ 322.
eth1:  EEPROM default media type Autosense.
eth1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
eth1:  MII transceiver #0 config 1000 status 7809 advertising 01e1.
PCIBIOS: Enabling device 31:07.0 (0007 -> 0147)
PCIBIOS: Setting latency timer of 31:07.0 to 128
eth2: Digital DS21143 Tulip rev 65 at 0x30280, 00:10:83:7B:0A:3F, IRQ 323.
eth2:  EEPROM default media type Autosense.
eth2:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
eth2:  MII transceiver #0 config 1000 status 7809 advertising 01e1.
PCIBIOS: Enabling device 32:04.0 (0007 -> 0147)
PCIBIOS: Setting latency timer of 32:04.0 to 128
eth3: Digital DS21140 Tulip rev 34 at 0x31000, 00:00:D1:1A:31:BF, IRQ 322.
eth3:  EEPROM default media type Autosense.
eth3:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
eth3:  MII transceiver #1 config 3100 status 7849 advertising 0101.
eth3:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth3:  Advertising 01e1 (to advertise is 01e1).
PCIBIOS: Enabling device 32:05.0 (0007 -> 0147)
PCIBIOS: Setting latency timer of 32:05.0 to 128
eth4: Digital DS21140 Tulip rev 34 at 0x31080, 00:00:D1:1A:32:22, IRQ 323.
eth4:  EEPROM default media type Autosense.
eth4:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
eth4:  MII transceiver #1 config 3100 status 7849 advertising 0101.
eth4:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth4:  Advertising 01e1 (to advertise is 01e1).
PCIBIOS: Enabling device 32:06.0 (0007 -> 0147)
PCIBIOS: Setting latency timer of 32:06.0 to 128
eth5: Digital DS21140 Tulip rev 34 at 0x31100, 00:00:D1:1A:31:B9, IRQ 324.
eth5:  EEPROM default media type Autosense.
eth5:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
eth5:  MII transceiver #1 config 3100 status 7849 advertising 0101.
eth5:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth5:  Advertising 01e1 (to advertise is 01e1).
PCIBIOS: Enabling device 32:07.0 (0007 -> 0147)
PCIBIOS: Setting latency timer of 32:07.0 to 128
eth6: Digital DS21140 Tulip rev 34 at 0x31180, 00:00:D1:1A:31:C4, IRQ 325.
eth6:  EEPROM default media type Autosense.
eth6:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
eth6:  MII transceiver #1 config 3100 status 7849 advertising 0101.
eth6:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth6:  Advertising 01e1 (to advertise is 01e1).
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 2, function 0
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
sym53c8xx: 53c876 detected 
sym53c8xx: at PCI bus 0, device 2, function 1
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
sym53c8xx: 53c876 detected 
sym53c8xx: at PCI bus 0, device 1, function 0
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 1, function 1
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 32, device 0, function 0
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 32, device 0, function 1
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 49, device 4, function 0
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 49, device 4, function 1
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
sym53c8xx: 53c896 detected 
sym53c876-0: rev 0x14 on pci bus 0 device 2 function 0 irq 130
sym53c876-0: NCR clock is 40218KHz
sym53c876-0: ID 7, Fast-20, Parity Checking
sym53c876-0: on-chip RAM at 0xfffffffff8008000
sym53c876-0: restart (scsi reset).
sym53c876-0: Downloading SCSI SCRIPTS.
sym53c876-1: rev 0x14 on pci bus 0 device 2 function 1 irq 131
sym53c876-1: NCR clock is 40218KHz
sym53c876-1: ID 7, Fast-20, Parity Checking
sym53c876-1: on-chip RAM at 0xfffffffff800a000
sym53c876-1: restart (scsi reset).
sym53c876-1: Downloading SCSI SCRIPTS.
sym53c896-2: rev 0x7 on pci bus 0 device 1 function 0 irq 129
sym53c896-2: NCR clock is 40218KHz
sym53c896-2: ID 7, Fast-40, Parity Checking
sym53c896-2: on-chip RAM at 0xfffffffff8002000
sym53c896-2: restart (scsi reset).
sym53c896-2: handling phase mismatch from SCRIPTS.
sym53c896-2: Downloading SCSI SCRIPTS.
sym53c896-3: rev 0x7 on pci bus 0 device 1 function 1 irq 130
sym53c896-3: NCR clock is 40218KHz
sym53c896-3: ID 7, Fast-40, Parity Checking
sym53c896-3: on-chip RAM at 0xfffffffff8006000
sym53c896-3: restart (scsi reset).
sym53c896-3: handling phase mismatch from SCRIPTS.
sym53c896-3: Downloading SCSI SCRIPTS.
sym53c896-4: rev 0x1 on pci bus 32 device 0 function 0 irq 256
sym53c896-4: NCR clock is 40218KHz
sym53c896-4: ID 7, Fast-40, Parity Checking
sym53c896-4: on-chip RAM at 0xfffffffffa002000
sym53c896-4: restart (scsi reset).
sym53c896-4: handling phase mismatch from SCRIPTS.
sym53c896-4: Downloading SCSI SCRIPTS.
sym53c896-5: rev 0x1 on pci bus 32 device 0 function 1 irq 257
sym53c896-5: NCR clock is 40218KHz
sym53c896-5: ID 7, Fast-40, Parity Checking
sym53c896-5: on-chip RAM at 0xfffffffffa004000
sym53c896-5: restart (scsi reset).
sym53c896-5: handling phase mismatch from SCRIPTS.
sym53c896-5: Downloading SCSI SCRIPTS.
sym53c896-6: rev 0x5 on pci bus 49 device 4 function 0 irq 320
sym53c896-6: NCR clock is 40218KHz
sym53c896-6: ID 7, Fast-40, Parity Checking
sym53c896-6: on-chip RAM at 0xfffffffffb002000
sym53c896-6: restart (scsi reset).
sym53c896-6: handling phase mismatch from SCRIPTS.
sym53c896-6: Downloading SCSI SCRIPTS.
sym53c896-7: rev 0x5 on pci bus 49 device 4 function 1 irq 321
sym53c896-7: NCR clock is 40218KHz
sym53c896-7: ID 7, Fast-40, Parity Checking
sym53c896-7: on-chip RAM at 0xfffffffffb004000
sym53c896-7: restart (scsi reset).
sym53c896-7: handling phase mismatch from SCRIPTS.
sym53c896-7: Downloading SCSI SCRIPTS.
scsi0 : sym53c8xx - version 1.6b
scsi1 : sym53c8xx - version 1.6b
scsi2 : sym53c8xx - version 1.6b
scsi3 : sym53c8xx - version 1.6b
scsi4 : sym53c8xx - version 1.6b
scsi5 : sym53c8xx - version 1.6b
scsi6 : sym53c8xx - version 1.6b
scsi7 : sym53c8xx - version 1.6b
  Vendor: SEAGATE   Model: ST39102LC         Rev: 7C03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym53c876-1-<15,0>: tagged command queue depth set to 8
  Vendor: HP        Model: D5989B            Rev: 1.02
  Type:   Processor                          ANSI SCSI revision: 02
sym53c896-2-<13,0>: wide msgin: 1-2-3-1.
sym53c896-2-<13,0>: wide: wide=1 chg=0.
sym53c896-2-<13,0>: wide msgout: 1-2-3-1.
sym53c896-2-<13,0>: sync msg in: 1-3-1-a-f.
sym53c896-2-<13,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=15 fak=0 chg=1.
sym53c896-2-<13,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
sym53c896-2-<13,0>: sync msgout: 1-3-1-c-f.
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym53c896-2-<14,0>: wide msgin: 1-2-3-1.
sym53c896-2-<14,0>: wide: wide=1 chg=0.
sym53c896-2-<14,0>: wide msgout: 1-2-3-1.
sym53c896-2-<14,0>: sync msg in: 1-3-1-a-f.
sym53c896-2-<14,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=15 fak=0 chg=1.
sym53c896-2-<14,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
sym53c896-2-<14,0>: sync msgout: 1-3-1-c-f.
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym53c896-2-<15,0>: wide msgin: 1-2-3-1.
sym53c896-2-<15,0>: wide: wide=1 chg=0.
sym53c896-2-<15,0>: wide msgout: 1-2-3-1.
sym53c896-2-<15,0>: sync msg in: 1-3-1-a-f.
sym53c896-2-<15,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=15 fak=0 chg=1.
sym53c896-2-<15,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
sym53c896-2-<15,0>: sync msgout: 1-3-1-c-f.
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym53c896-2-<13,0>: tagged command queue depth set to 8
sym53c896-2-<14,0>: tagged command queue depth set to 8
sym53c896-2-<15,0>: tagged command queue depth set to 8
  Vendor: SEAGATE   Model: ST318404LC        Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym53c896-3-<15,0>: tagged command queue depth set to 8
  Vendor: IBM       Model: DMVS18D           Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: IBM       Model: DMVS18D           Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: IBM       Model: DMVS18D           Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: IBM       Model: DMVS18D           Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: HP        Model: A5272A            Rev: HP04
  Type:   Enclosure                          ANSI SCSI revision: 02
sym53c896-4-<0,0>: tagged command queue depth set to 8
sym53c896-4-<2,0>: tagged command queue depth set to 8
sym53c896-4-<3,0>: tagged command queue depth set to 8
sym53c896-4-<13,0>: tagged command queue depth set to 8
  Vendor: IBM       Model: DMVS18D           Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: IBM       Model: DMVS18D           Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: IBM       Model: DMVS18D           Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: IBM       Model: DMVS18D           Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: IBM       Model: DMVS18D           Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: HP        Model: A5272A            Rev: HP04
  Type:   Enclosure                          ANSI SCSI revision: 02
sym53c896-6-<0,0>: tagged command queue depth set to 8
sym53c896-6-<1,0>: tagged command queue depth set to 8
sym53c896-6-<2,0>: tagged command queue depth set to 8
sym53c896-6-<3,0>: tagged command queue depth set to 8
sym53c896-6-<13,0>: tagged command queue depth set to 8
Detected scsi disk sda at scsi1, channel 0, id 15, lun 0
Detected scsi disk sdb at scsi2, channel 0, id 13, lun 0
Detected scsi disk sdc at scsi2, channel 0, id 14, lun 0
Detected scsi disk sdd at scsi2, channel 0, id 15, lun 0
Detected scsi disk sde at scsi3, channel 0, id 15, lun 0
Detected scsi disk sdf at scsi4, channel 0, id 0, lun 0
Detected scsi disk sdg at scsi4, channel 0, id 2, lun 0
Detected scsi disk sdh at scsi4, channel 0, id 3, lun 0
Detected scsi disk sdi at scsi4, channel 0, id 13, lun 0
Detected scsi disk sdj at scsi6, channel 0, id 0, lun 0
Detected scsi disk sdk at scsi6, channel 0, id 1, lun 0
Detected scsi disk sdl at scsi6, channel 0, id 2, lun 0
Detected scsi disk sdm at scsi6, channel 0, id 3, lun 0
Detected scsi disk sdn at scsi6, channel 0, id 13, lun 0
sym53c876-1-<15,0>: wide msgout: 1-2-3-1.
sym53c876-1-<15,0>: wide msgin: 1-2-3-1.
sym53c876-1-<15,0>: wide: wide=1 chg=0.
sym53c876-1-<15,0>: wide msgout: 1-2-3-1.
sym53c876-1-<15,0>: wide msgin: 1-2-3-1.
sym53c876-1-<15,0>: wide: wide=1 chg=0.
sym53c876-1-<15,0>: sync msgout: 1-3-1-c-10.
sym53c876-1-<15,0>: sync msg in: 1-3-1-c-f.
sym53c876-1-<15,0>: sync: per=12 scntl3=0x90 scntl4=0x0 ofs=15 fak=0 chg=0.
sym53c876-1-<15,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sda: 17781521 512-byte hdwr sectors (9104 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
sym53c896-2-<13,0>: wide msgout: 1-2-3-1.
sym53c896-2-<13,0>: wide msgin: 1-2-3-1.
sym53c896-2-<13,0>: wide: wide=1 chg=0.
sym53c896-2-<13,0>: sync msgout: 1-3-1-c-1f.
sym53c896-2-<13,0>: sync msg in: 1-3-1-c-f.
sym53c896-2-<13,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=15 fak=0 chg=0.
sym53c896-2-<13,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sdb: 17773524 512-byte hdwr sectors (9100 MB)
 sdb:
sym53c896-2-<14,0>: wide msgout: 1-2-3-1.
sym53c896-2-<14,0>: wide msgin: 1-2-3-1.
sym53c896-2-<14,0>: wide: wide=1 chg=0.
sym53c896-2-<14,0>: sync msgout: 1-3-1-c-1f.
sym53c896-2-<14,0>: sync msg in: 1-3-1-c-f.
sym53c896-2-<14,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=15 fak=0 chg=0.
sym53c896-2-<14,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sdc: 17773524 512-byte hdwr sectors (9100 MB)
 sdc:
sym53c896-2-<15,0>: wide msgout: 1-2-3-1.
sym53c896-2-<15,0>: wide msgin: 1-2-3-1.
sym53c896-2-<15,0>: wide: wide=1 chg=0.
sym53c896-2-<15,0>: sync msgout: 1-3-1-c-1f.
sym53c896-2-<15,0>: sync msg in: 1-3-1-c-f.
sym53c896-2-<15,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=15 fak=0 chg=0.
sym53c896-2-<15,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sdd: 17773524 512-byte hdwr sectors (9100 MB)
 sdd:
sym53c896-3-<15,0>: wide msgout: 1-2-3-1.
sym53c896-3-<15,0>: wide msgin: 1-2-3-1.
sym53c896-3-<15,0>: wide: wide=1 chg=0.
sym53c896-3-<15,0>: wide msgout: 1-2-3-1.
sym53c896-3-<15,0>: wide msgin: 1-2-3-1.
sym53c896-3-<15,0>: wide: wide=1 chg=0.
sym53c896-3-<15,0>: sync msgout: 1-3-1-c-1f.
sym53c896-3-<15,0>: sync msg in: 1-3-1-c-1f.
sym53c896-3-<15,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c896-3-<15,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sde: 35566480 512-byte hdwr sectors (18210 MB)
 sde: unknown partition table
sym53c896-4-<0,0>: wide msgout: 1-2-3-1.
sym53c896-4-<0,0>: wide msgin: 1-2-3-1.
sym53c896-4-<0,0>: wide: wide=1 chg=0.
sym53c896-4-<0,0>: wide msgout: 1-2-3-1.
sym53c896-4-<0,0>: wide msgin: 1-2-3-1.
sym53c896-4-<0,0>: wide: wide=1 chg=0.
sym53c896-4-<0,0>: sync msgout: 1-3-1-c-1f.
sym53c896-4-<0,0>: sync msg in: 1-3-1-c-1f.
sym53c896-4-<0,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c896-4-<0,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sdf: 35566480 512-byte hdwr sectors (18210 MB)
 sdf: unknown partition table
sym53c896-4-<2,0>: wide msgout: 1-2-3-1.
sym53c896-4-<2,0>: wide msgin: 1-2-3-1.
sym53c896-4-<2,0>: wide: wide=1 chg=0.
sym53c896-4-<2,0>: wide msgout: 1-2-3-1.
sym53c896-4-<2,0>: wide msgin: 1-2-3-1.
sym53c896-4-<2,0>: wide: wide=1 chg=0.
sym53c896-4-<2,0>: sync msgout: 1-3-1-c-1f.
sym53c896-4-<2,0>: sync msg in: 1-3-1-c-1f.
sym53c896-4-<2,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c896-4-<2,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sdg: 35566480 512-byte hdwr sectors (18210 MB)
 sdg: unknown partition table
sym53c896-4-<3,0>: wide msgout: 1-2-3-1.
sym53c896-4-<3,0>: wide msgin: 1-2-3-1.
sym53c896-4-<3,0>: wide: wide=1 chg=0.
sym53c896-4-<3,0>: wide msgout: 1-2-3-1.
sym53c896-4-<3,0>: wide msgin: 1-2-3-1.
sym53c896-4-<3,0>: wide: wide=1 chg=0.
sym53c896-4-<3,0>: sync msgout: 1-3-1-c-1f.
sym53c896-4-<3,0>: sync msg in: 1-3-1-c-1f.
sym53c896-4-<3,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c896-4-<3,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sdh: 35566480 512-byte hdwr sectors (18210 MB)
 sdh: unknown partition table
sym53c896-4-<13,0>: wide msgout: 1-2-3-1.
sym53c896-4-<13,0>: wide msgin: 1-2-3-1.
sym53c896-4-<13,0>: wide: wide=1 chg=0.
sym53c896-4-<13,0>: wide msgout: 1-2-3-1.
sym53c896-4-<13,0>: wide msgin: 1-2-3-1.
sym53c896-4-<13,0>: wide: wide=1 chg=0.
sym53c896-4-<13,0>: sync msgout: 1-3-1-c-1f.
sym53c896-4-<13,0>: sync msg in: 1-3-1-c-1f.
sym53c896-4-<13,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c896-4-<13,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sdi: 35566480 512-byte hdwr sectors (18210 MB)
 sdi: unknown partition table
sym53c896-6-<0,0>: wide msgout: 1-2-3-1.
sym53c896-6-<0,0>: wide msgin: 1-2-3-1.
sym53c896-6-<0,0>: wide: wide=1 chg=0.
sym53c896-6-<0,0>: wide msgout: 1-2-3-1.
sym53c896-6-<0,0>: wide msgin: 1-2-3-1.
sym53c896-6-<0,0>: wide: wide=1 chg=0.
sym53c896-6-<0,0>: sync msgout: 1-3-1-c-1f.
sym53c896-6-<0,0>: sync msg in: 1-3-1-c-1f.
sym53c896-6-<0,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c896-6-<0,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sdj: 35566480 512-byte hdwr sectors (18210 MB)
 sdj: unknown partition table
sym53c896-6-<1,0>: wide msgout: 1-2-3-1.
sym53c896-6-<1,0>: wide msgin: 1-2-3-1.
sym53c896-6-<1,0>: wide: wide=1 chg=0.
sym53c896-6-<1,0>: wide msgout: 1-2-3-1.
sym53c896-6-<1,0>: wide msgin: 1-2-3-1.
sym53c896-6-<1,0>: wide: wide=1 chg=0.
sym53c896-6-<1,0>: sync msgout: 1-3-1-c-1f.
sym53c896-6-<1,0>: sync msg in: 1-3-1-c-1f.
sym53c896-6-<1,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c896-6-<1,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sdk: 35566480 512-byte hdwr sectors (18210 MB)
 sdk: unknown partition table
sym53c896-6-<2,0>: wide msgout: 1-2-3-1.
sym53c896-6-<2,0>: wide msgin: 1-2-3-1.
sym53c896-6-<2,0>: wide: wide=1 chg=0.
sym53c896-6-<2,0>: wide msgout: 1-2-3-1.
sym53c896-6-<2,0>: wide msgin: 1-2-3-1.
sym53c896-6-<2,0>: wide: wide=1 chg=0.
sym53c896-6-<2,0>: sync msgout: 1-3-1-c-1f.
sym53c896-6-<2,0>: sync msg in: 1-3-1-c-1f.
sym53c896-6-<2,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c896-6-<2,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sdl: 35566480 512-byte hdwr sectors (18210 MB)
 sdl: unknown partition table
sym53c896-6-<3,0>: wide msgout: 1-2-3-1.
sym53c896-6-<3,0>: wide msgin: 1-2-3-1.
sym53c896-6-<3,0>: wide: wide=1 chg=0.
sym53c896-6-<3,0>: wide msgout: 1-2-3-1.
sym53c896-6-<3,0>: wide msgin: 1-2-3-1.
sym53c896-6-<3,0>: wide: wide=1 chg=0.
sym53c896-6-<3,0>: sync msgout: 1-3-1-c-1f.
sym53c896-6-<3,0>: sync msg in: 1-3-1-c-1f.
sym53c896-6-<3,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c896-6-<3,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sdm: 35566480 512-byte hdwr sectors (18210 MB)
 sdm: unknown partition table
sym53c896-6-<13,0>: wide msgout: 1-2-3-1.
sym53c896-6-<13,0>: wide msgin: 1-2-3-1.
sym53c896-6-<13,0>: wide: wide=1 chg=0.
sym53c896-6-<13,0>: wide msgout: 1-2-3-1.
sym53c896-6-<13,0>: wide msgin: 1-2-3-1.
sym53c896-6-<13,0>: wide: wide=1 chg=0.
sym53c896-6-<13,0>: sync msgout: 1-3-1-c-1f.
sym53c896-6-<13,0>: sync msg in: 1-3-1-c-1f.
sym53c896-6-<13,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c896-6-<13,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sdn: 35566480 512-byte hdwr sectors (18210 MB)
 sdn: unknown partition table
Detected scsi generic sg1 at scsi2, channel 0, id 5, lun 0, type 3
Detected scsi generic sg10 at scsi4, channel 0, id 15, lun 0, type 13
Detected scsi generic sg16 at scsi6, channel 0, id 15, lun 0, type 13
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 16Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 15.8.81.247, my address is 15.8.80.78
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Switching from PDC console

[ delete repeated text - A500 dumps kernel msg buffer here. ]

kmem_create: Forcing size word alignment - nfs_fh
Looking up port of RPC 100003/2 on 15.8.81.247
Looking up port of RPC 100005/2 on 15.8.81.247
VFS: Mounted root (nfs filesystem) readonly.
INIT: version 2.78 booting
Activating swap...
Checking all file systems...
Parallelizing fsck version 1.19 (13-Jul-2000)
Setting kernel variables.
Mounting local filesystems...
not mounted anything
hostname: can't open `(null)'
Configuring network interfaces: done.
Starting portmap daemon: portmap.
Starting portmapper... 
do_page_fault() pid=51 command='sleep'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011
r0-3	 0000000000000000 00000000000039f8 0000000040122197 0000000000002000
r4-7	 000000004017a938 000000000005a550 0000000000002000 000000002001fddc
r8-11	 0000000000000000 000000000008a810 000000002001fddc 0000000000000001
r12-15	 0000000000000000 0000000000002564 000000000005a550 0000000000000000
r16-19	 0000000000000000 0000000000002358 0000000000000000 000000004017a938
r20-23	 0000000000000000 00000000000039f8 0000000000000031 000000000000002d
r24-27	 000000000000000d 000000004016fc72 000000002001ffe2 0000000000003838
r28-31	 0000000000002564 0000000000004040 0000000020020280 0000000000000004
sr0-4	 0000000000000380 0000000000000380 0000000000000000 0000000000000380
sr4-8	 0000000000000380 0000000000000380 0000000000000380 0000000000000380

IASQ: 0000000000000380 0000000000000380 IAOQ: 000000004012231f 0000000040122323
 IIR: 0e801014    ISR: 0000000000000380  IOR: 0000000000000000
ORIG_R28: 0000000000004000
/etc/init.d/rcS: line 80:    51 Segmentation fault      sleep 2
Mounting remote filesystems...

Setting the System Clock using the Hardware Clock as reference...
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access method.
System Clock set. Local time: Wed Dec  6 22:52:37 MST 2000

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd
do_page_fault() pid=95 command='syslogd'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011101111111000001011
r0-3	 0000000000000000 00000000000da490 000000004010188f 00000000000096c0
r4-7	 00000000000d9490 000000004013d67c 00000000000096c0 0000000000000003
r8-11	 0000000000009738 0000000000006800 000000004013e9dc 000000000008d2f0
r12-15	 00000000200207cc 0000000000000000 000000000008d570 0000000000000000
r16-19	 0000000000000000 0000000000000000 0000000000078440 00000000000d9490
r20-23	 000000004013e9e8 000000004013e9e0 0000000000000a79 0000000040136a6c
r24-27	 000000000000973f 0000000000000000 0000000020022a88 0000000000008ec0
r28-31	 00000000000025f3 000000000000a180 0000000020022a80 000000004004271b
sr0-4	 0000000000000280 0000000000000280 0000000000000000 0000000000000280
sr4-8	 0000000000000280 0000000000000280 0000000000000280 0000000000000280

IASQ: 0000000000000280 0000000000000280 IAOQ: 000000004010188b 00000000400e8bcb
 IIR: 483a05d8    ISR: 0000000000000280  IOR: 00000000000da77c
ORIG_R28: 0000000000000000



 klogd.
Starting Name Service Cache Daemon: nscd.
Starting internet superserver: inetd.

Debian GNU/Linux 2.2 gggA500 ttyS0

gggA500 login: root
PAM_unix[115]: (login) session opened for user root by LOGIN(uid=0)
PAM-lastlog[115]: /var/log/lastlog file is locked/read
Last login: Wed Dec  6 19:22:50 2000 on ttyS0
Linux gggA500 2.4.0-test10 #6 Wed Dec 6 17:14:11 PST 2000 parisc64 unknown

Most of the programs included with the Debian GNU/Linux system are
freely redistributable; the exact distribution terms for each program
are described in the individual files in /usr/doc/*/copyright

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
login[115]: ROOT LOGIN on `ttyS0'

gggA500:~# cat /proc/cpuinfo 
processor	: 0
cpu family	: PA-RISC 2.0
cpu		: PA8500 (PCX-W)
cpu MHz		: 440.000000
model		: 9000/800/A500-44
model name	: Crescendo 440
hversion	: 0x00005cb0
sversion	: 0x00000491
I-cache		: 512 KB
D-cache		: 1024 KB (WB)
ITLB entries	: 160
DTLB entries	: 160 - shared with ITLB
bogomips	: 878.18
gggA500:~# cat /proc/scsi/scsi
Attached devices: 
Host: scsi1 Channel: 00 Id: 15 Lun: 00
  Vendor: SEAGATE  Model: ST39102LC        Rev: 7C03
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi2 Channel: 00 Id: 05 Lun: 00
  Vendor: HP       Model: D5989B           Rev: 1.02
  Type:   Processor                        ANSI SCSI revision: 02
Host: scsi2 Channel: 00 Id: 13 Lun: 00
  Vendor: HP       Model: 9.10GB B 80-1205 Rev:     
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi2 Channel: 00 Id: 14 Lun: 00
  Vendor: HP       Model: 9.10GB B 80-1205 Rev:     
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi2 Channel: 00 Id: 15 Lun: 00
  Vendor: HP       Model: 9.10GB B 80-1205 Rev:     
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi3 Channel: 00 Id: 15 Lun: 00
  Vendor: SEAGATE  Model: ST318404LC       Rev: HP01
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi4 Channel: 00 Id: 00 Lun: 00
  Vendor: IBM      Model: DMVS18D          Rev: HP05
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi4 Channel: 00 Id: 02 Lun: 00
  Vendor: IBM      Model: DMVS18D          Rev: HP05
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi4 Channel: 00 Id: 03 Lun: 00
  Vendor: IBM      Model: DMVS18D          Rev: HP05
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi4 Channel: 00 Id: 13 Lun: 00
  Vendor: IBM      Model: DMVS18D          Rev: HP05
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi4 Channel: 00 Id: 15 Lun: 00
  Vendor: HP       Model: A5272A           Rev: HP04
  Type:   Enclosure                        ANSI SCSI revision: 02
Host: scsi6 Channel: 00 Id: 00 Lun: 00
  Vendor: IBM      Model: DMVS18D          Rev: HP05
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi6 Channel: 00 Id: 01 Lun: 00
  Vendor: IBM      Model: DMVS18D          Rev: HP05
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi6 Channel: 00 Id: 02 Lun: 00
  Vendor: IBM      Model: DMVS18D          Rev: HP05
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi6 Channel: 00 Id: 03 Lun: 00
  Vendor: IBM      Model: DMVS18D          Rev: HP05
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi6 Channel: 00 Id: 13 Lun: 00
  Vendor: IBM      Model: DMVS18D          Rev: HP05
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi6 Channel: 00 Id: 15 Lun: 00
  Vendor: HP       Model: A5272A           Rev: HP04
  Type:   Enclosure                        ANSI SCSI revision: 02
gggA500:~# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:30:6E:03:79:9F  
          inet addr:15.8.80.78  Bcast:15.8.87.255  Mask:255.255.248.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:5236 errors:0 dropped:3 overruns:0 frame:0
          TX packets:2238 errors:0 dropped:0 overruns:0 carrier:0
          collisions:43 txqueuelen:100 
          Interrupt:128 

gggA500:~# fdisk /dev/sda

The number of cylinders for this disk is set to 8682.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): p

Disk /dev/sda: 64 heads, 32 sectors, 8682 cylinders
Units = cylinders of 2048 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sda1             1      1025   1049584   82  Linux swap
/dev/sda2          1026      1046     21504   f0  Unknown
/dev/sda3          1047      5143   4195328   83  Linux
/dev/sda4          5144      8682   3623936   83  Linux

Command (m for help): q

gggA500:~# mke2fs /dev/sda
mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
/dev/sda is entire device, not just one partition!
Proceed anyway? (y,n) n
gggA500:~# set -o vi
gggA500:~# mke2fs /dev/sda3
mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
warning: 256 blocks unused.

Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
525312 inodes, 1048576 blocks
52441 blocks (5.00%) reserved for the super user
First data block=0
32 block groups
32768 blocks per group, 32768 fragments per group
16416 inodes per group
Superblock backups stored on blocks: 
	32768, 98304, 163840, 229376, 294912, 819200, 884736

Writing inode tables:  0/32 1/32 2/32 3/32 4/32 5/32 6/32 7/32 8/32 9/3210/3211/3212/3213/3214/3215/3216/3217/3218/3219/3220/3221/3222/3223/3224/3225/3226/3227/3228/3229/3230/3231/32done                            
Writing superblocks and filesystem accounting information: done
gggA500:~# mount /dev/sda3 /mnt
gggA500:~# cd /mnt
gggA500:/mnt# ls
lost+found
gggA500:/mnt# dd if=/palinux-0.5.iso of=/dev/sdc
dd: writing to `/dev/sdc': No space left on device
7193+0 records in
7192+0 records out
gggA500:/mnt# df
Filesystem           1k-blocks      Used Available Use% Mounted on
15.8.81.247:/tftpboot/hppa
                       7558400   5736960   1437488  80% /
/dev/sda3              4128320        20   3918536   1% /mnt
gggA500:/mnt# ls -l /dev/sdc
brw-rw----    1 root     disk       8,  32 Aug  1 14:43 /dev/sdc
gggA500:/mnt# fdisk /dev/sdc
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.


The number of cylinders for this disk is set to 8678.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): p

Disk /dev/sdc: 64 heads, 32 sectors, 8678 cylinders
Units = cylinders of 2048 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System

Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-8678, default 1): 
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-8678, default 8678): 2100

Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
p
Partition number (1-4): 2
First cylinder (2101-8678, default 2101): 
Using default value 2101
Last cylinder or +size or +sizeM or +sizeK (2101-8678, default 8678): 4200

Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
p
Partition number (1-4): 3
First cylinder (4201-8678, default 4201): 
Using default value 4201
Last cylinder or +size or +sizeM or +sizeK (4201-8678, default 8678): 
Using default value 8678

Command (m for help): p

Disk /dev/sdc: 64 heads, 32 sectors, 8678 cylinders
Units = cylinders of 2048 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sdc1             1      2100   2150384   83  Linux
/dev/sdc2          2101      4200   2150400   83  Linux
/dev/sdc3          4201      8678   4585472   83  Linux

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
SCSI device sdc: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sdc: 17773524 512-byte hdwr sectors (9100 MB)

WARNING: If you have created or modified any DOS 6.x
partitions, please see the fdisk manual page for additional
information.
Syncing disks.
gggA500:/mnt# cd/
gggA500:/# dd if=/palinux-0.5.iso of=/dev/sdc1 bs=8k
dd: writing `/dev/sdc1': No space left on device
3550+0 records in
3549+0 records out
gggA500:/# sync
gggA500:/# ls -l palinux-0.5.iso
-rw-r--r--    1 769      users    184612864 Nov 22 17:33 palinux-0.5.iso
gggA500:/# du -s palinux-0.5.iso 
180472	palinux-0.5.iso
gggA500:/# 


From - Thu Nov 08 21:14:37 2018
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From: Jason Eckhardt <jason@equator.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ld problem workaround
Date: Thu, 6 May 1999 11:42:19 -0700 (PDT)
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Cc: jason@gatekeeper.equator.com, parisc-linux@thepuffingroup.com
To: adevries@redhat.com
Original-X-From: jason@gatekeeper.equator.com  Thu May  6 11:44:15 1999
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Xref: news.gmane.org gmane.linux.ports.parisc:8804

> On Thu, 6 May 1999, Philipp Rumpf wrote:
> > 
> > Where are the bootloader sources atm ?
> > 
>
> Jason's sources are at:
>
> ftp://puffin.external.hp.com/pub/parisc/src/boot_rel_0.2.tar.gz
>
> I'm not quite sure how complete they are.  The pain is that because of our
> lack of ELF32 in binutils these really need to be linked on an HPUX box.
>


  The source is fairly complete in the sense that the bootstrap can load
  a kernel image and transfer control to it. If we had a linux kernel, it could
  be booted today.
  The source can also be considered less
  than complete in that it just reads the kernel from a fixed location on
  the media -- for simplicity, to get linux up and running. Alex and
  chris have suggested (and this was a thought all along) to have the booter
  load the kernel from an ext2 file system. With more time, that can be
  done. It's a bit painful since it involves a stand alone extfs (read only)
  implementation. Hopefully, we can re-use much of the standard linux code,
  but I haven't thought about this in detail yet.

  Jason.


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Subject: Re: A500 status update
Date: Wed, 06 Dec 2000 22:49:49 -0800
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Xref: news.gmane.org gmane.linux.ports.parisc:8805

Grant Grundler wrote:
> TODO:

I forgot to mention:
o sleep seg faults (syscall issue?)
o syslogd seg faults (ditto?)
o CONFIG_GENRTC=n since hwclock crashes the system at that point
o have bogus /sbin/modprobe (shell script that echo's the parms)

Anything else I'm forgetting?

grant


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Subject: Re: A500 status update
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Xref: news.gmane.org gmane.linux.ports.parisc:8806

On Wed, Dec 06, 2000 at 10:49:49PM -0800, Grant Grundler wrote:
> Grant Grundler wrote:
> > TODO:
> 
> I forgot to mention:
> o sleep seg faults (syscall issue?)
> o syslogd seg faults (ditto?)
> o CONFIG_GENRTC=n since hwclock crashes the system at that point
> o have bogus /sbin/modprobe (shell script that echo's the parms)
> 
> Anything else I'm forgetting?

I see "KERNEL BUG at page_alloc.c:111" at random - not very often
though.

I get random chassis code dumps associated with lockups that last
a few seconds.  System generally carries on after ack-ing the error.
Don't know if these chassis codes are always the same, no examples to
hand.

Occasionally a boot will fail looping on "break 0,0: pid=1 command='init'"
and a register dump.

If I use the file system from nfsroot-20001009.tar.gz then I can get
through a boot, login, and a shell prompt.  If I use the file system
from the beta 0.5 CD base.tgz, then it goes to sleep after login
but before shell prompt.

I don't get sleep or syslogd seg faulting, on either file system.

Trying to mount a local file system is ok, but trying to mount an
nfs file system causes mount to segv.

I was able to configure two ethernet interfaces on seperate subnets
and ping them both from remote machines.

I had to disable scatter/gather in the scsi driver to make the disk
work.

I am able to boot from scsi disk, but it is rather fragile.  Worked
for a while, then reboot gave:

> INIT: version 2.78 booting
> Activating swap...
> Checking root file system...
> Parallelizing fsck version 1.19 (13-Jul-2000)
> /dev/sda5 was not cleanly unmounted, check forced.
> /dev/sda5:                                                                      
> Special (device/socket/fifo) inode 17422 has non-zero size.  FIXED.
> /dev/sda5: Special (device/socket/fifo) inode 17424 has non-zero size.  FIXED.
> /dev/sda5:                                                                      
> Entry 'bin' in / (2) has deleted/unused inode 4081.  CLEARED.
> /dev/sda5: Entry 'boot' in / (2) has deleted/unused inode 8161.  CLEARED.
> /dev/sda5: Entry 'cdrom' in / (2) has deleted/unused inode 12241.  CLEARED.
> /dev/sda5: Entry 'dev' in / (2) has deleted/unused inode 16321.  CLEARED.
> /dev/sda5: Entry 'etc' in / (2) has deleted/unused inode 20401.  CLEARED.
> /dev/sda5: Entry 'floppy' in / (2) has deleted/unused inode 89761.  CLEARED.
> /dev/sda5: Entry 'home' in / (2) has deleted/unused inode 91801.  CLEARED.
> /dev/sda5: Entry 'initrd' in / (2) has deleted/unused inode 93841.  CLEARED.
> /dev/sda5: Entry 'lib' in / (2) has deleted/unused inode 95881.  CLEARED.
> /dev/sda5: Entry 'mnt' in / (2) has deleted/unused inode 102001.  CLEARED.
> /dev/sda5: Entry 'proc' in / (2) has deleted/unused inode 104041.  CLEARED.
> /dev/sda5: E
> do_page_fault() pid=17 command='fsck.ext2'
> ntry 'root' in /
>  (2) has deleted     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> 0SW: /unused inode 1006081.  CLEARED.
>  /dev/sda5: Entr0y 'sbin' in / (20) has deleted/un0used inode 1081201.  CLEARED.
> /d0ev/sda5: Entry '0tmp' in / (2) ha0s deleted/unused0 inode 110161.  0CLEARED.
> /dev/s0da5: Entry 'usr'0 in / (2) has de1leted/unused ino1de 112201.  CLEA0RED.
> /dev/sda5:1 Bad inode numbe1r for '.' in dir1ectory inode 20410.
> 
> 
> 1dev/sda15: UNEXPECTED IN1CONSISTENCY; RUN1 fsck MANUALLY.
>         (i.e., without0 -a or -p option0s)
> 001011
> r0-3     0000000000000000 00000000000007f8 0000000040031c13 0000000020020600
> r4-7     000000004003515c 0000000000000004 0000000000000000 000000004001b210
> r8-11    0000000000000006 0000000000000001 0000000020020648 0000000000017298
> r12-15   0000000000000000 0000000000017298 0000000000048100 0000000000002105
> r16-19   0000000000020000 0000000000020002 0000000000078440 000000004003515c
> r20-23   000000004001e000 0000000078000000 0000000040031bf8 000000004015be64
> r24-27   000000000000002d 000000004015b138 0000000000000004 00000000000165cc
> r28-31   0000000000000000 00000000000173f8 0000000020020720 000000004000f6df
> sr0-4    0000000000000380 0000000000000000 0000000000000000 0000000000000380
> sr4-8    0000000000000380 0000000000000380 0000000000000380 0000000000000380
> 
> IASQ: 0000000000000380 0000000000000380 IAOQ: 00000000400231af 00000000400231b3
>  IIR: 0c201094    ISR: 0000000000000380  IOR: 00000000000007f8
> ORIG_R28: 0000000000000000
> Warning... fsck.ext2 for device /dev/sda5 exited with signal 11.
> 
> fsck failed.  Please repair manually and reboot.  Please note
> that the root file system is currently mounted read-only.  To
> remount it read-write:
> 
>    # mount -n -o remount,rw /
> 
> CONTROL-D will exit from this shell and REBOOT the system.
> 
> Give root password for maintenance
> (or type Control-D for normal startup): 
> bash-2.04# 
> bash-2.04# 
> bash-2.04# ls
> lost+found  var

At this point I gave up and went to bed!

Richard



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This is a pretty big difference from my experience on c3k but I was using
Friday's bits:

= > I forgot to mention:
= > o sleep seg faults (syscall issue?)

Maybe you have some older signal code in your tree?  I explicitly tested
SIGALRM.

= > o syslogd seg faults (ditto?)

I've had some problems with syslogd too, but nfsroot-latest it seems
fine.

= > o CONFIG_GENRTC=n since hwclock crashes the system at that point

When I run hwclock by hand I get warnings from the ioctl() syscall
converter about unknown ioctls, but no crash or anything.  There will
possibly be a LOT of unknown ioctls to translate, and we owe thanks
to Grant for turning on the skeleton of the ioctl converter stolen
from sparc/mips (parisc64/kernel/ioctl32.c)

= I see "KERNEL BUG at page_alloc.c:111" at random - not very often
= though.

I see that one too.

= Trying to mount a local file system is ok, but trying to mount an
= nfs file system causes mount to segv.

I've had poor luck with network clients like ping and telnet from
the nfs root and you could be seeing a related problem with NFS.
When I compiled a new ping it worked fine, so
it's possible there's an incompatibility in a networking
data structure caused by my posix_types.h changes.


I've decided to take a vacation from syscall wrappers for now because
it seems like once we have a new user space that things may be stable
and functional enough to focus on other areas.  I envision that we'll
add wrappers for unimplemented syscalls and ioctls as the need arises
(parisc64/kernel/sys_parisc32.c).

I've left many syscalls disabled and think we should keep them turned
off until it's proven they actually are used.  We should
probably consider nuking them in the 32-bit kernel too.

	-P


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Paul Bame wrote:
> This is a pretty big difference from my experience on c3k but I was using
> Friday's bits:

Another variable:  I rebuilt my own hppa64 XC from the latest gcc/binutils
I'll try taggart's latest XC bits on the next round.

> Maybe you have some older signal code in your tree?  I explicitly tested
> SIGALRM.

Not kernel tree. Very likely my NFS root is stale.


> I've had some problems with syslogd too, but nfsroot-latest it seems
> fine.

hmm....I have that.  nfsroot-latest.tar.gz -> nfsroot-20001009.tar.gz

> When I run hwclock by hand I get warnings from the ioctl() syscall
> converter about unknown ioctls, but no crash or anything.

ok. Perhaps it's time to re-enable that.

> There will
> possibly be a LOT of unknown ioctls to translate, and we owe thanks
> to Grant for turning on the skeleton of the ioctl converter stolen
> from sparc/mips (parisc64/kernel/ioctl32.c)

I didn't do that much!
You figured out the 64-bit function pointer crud! :^)
That was the only really b0rken part.

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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I plan to feed Linus the GSC changes next unless there are objections. I've
looked at parisc64 and Im not convinced its complete enough to merge.

Alan


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Alan Cox wrote:
> I've looked at parisc64 and Im not convinced its complete enough to merge.

What missing parts would you like to see?

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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> Alan Cox wrote:
> > I've looked at parisc64 and Im not convinced its complete enough to merge.
> 
> What missing parts would you like to see?

Its just a general feeling reading the code that it has lots of stuff thats
stubbed, implies it needs redoing etc


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On Wed, 6 Dec 2000, Richard Hirst wrote:
> Can you try adding
> 
> 	sim700=noneg:0xff,nodisc:0xff
> 
> to your boot comamnd line and let me know what happens.

Nothig, it behaves like id did before.

I tested to read the entire disk which it did without the error. I did get
~350 phase mismates on the 3G disk (id tuned phase mismatch logging on
after noticing that the last event before the unexpected disconnect was a
phase mis match, but they seem to happen all the time so I think they are
unrelated, normal, even?


If write to the disk with dd I can wite about 1050 sectors befor the error
happens (1050 failed twise and suceeded onece, every thine I tried below
succeded and every thing I tried avove failed).

> If that fails after very little disk activity, you could try 
> 
> 	sim700=noneg:0xff,nodisc:0xff,debug:0x2ff
> 
> and send me the (large) debug output.
Is this still intresting?

/Daniel
-- 



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To: Daniel Engstrom <danne@telia.com>
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In-Reply-To: <Pine.LNX.4.21.0012072158170.8673-100000@zaphod.halden.lillfab.se>; from danne@telia.com on Thu, Dec 07, 2000 at 10:12:05PM +0100
Xref: news.gmane.org gmane.linux.ports.parisc:8813

On Thu, Dec 07, 2000 at 10:12:05PM +0100, Daniel Engstrom wrote:
> On Wed, 6 Dec 2000, Richard Hirst wrote:
> > Can you try adding
> > 
> > 	sim700=noneg:0xff,nodisc:0xff
> > 
> > to your boot comamnd line and let me know what happens.
> 
> Nothig, it behaves like id did before.
> 
> I tested to read the entire disk which it did without the error. I did get
> ~350 phase mismates on the 3G disk (id tuned phase mismatch logging on
> after noticing that the last event before the unexpected disconnect was a
> phase mis match, but they seem to happen all the time so I think they are
> unrelated, normal, even?

Phase mis-matches are normal, but I wouldn't typically expect them on
a read or write if disconnect is disabled.

> If write to the disk with dd I can wite about 1050 sectors befor the error
> happens (1050 failed twise and suceeded onece, every thine I tried below
> succeded and every thing I tried avove failed).
> 
> > If that fails after very little disk activity, you could try 
> > 
> > 	sim700=noneg:0xff,nodisc:0xff,debug:0x2ff
> > 
> > and send me the (large) debug output.
> Is this still intresting?

Yes please, if you can capture it easily.  I'll be interested to
see if there are phase mismatches that are handled ok before the
one that goes wrong, and what the driver does afterwards.

Richard


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] eprintf error when xcompiling gcc
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Xref: news.gmane.org gmane.linux.ports.parisc:8814

Hi Alan,

I'm trying to cross-compile gcc (--with-libc) and I get several thousand of 
the following error,

bad.o: In function `ffebad_here':
/home/al-76/puffin/palinux/gcc/gcc/f/bad.c:268: undefined reference to 
`__eprintf'
/opt/palinux/lib/gcc-lib/hppa-linux/2.96/../../../../hppa-linux/bin/ld: 
bad.o(.text+0x400): cannot find stub entry 00000052___eprintf+0
/opt/palinux/lib/gcc-lib/hppa-linux/2.96/../../../../hppa-linux/bin/ld: 
bad.o(.text+0x400): cannot handle R_PARISC_PCREL17F for __eprintf


The function/.o is different in each error but they all complain about 
__eprintf.
Is this a problem with the xcompiler or the source(or both)?
Is there something else I should be doing when xcompiling?
Is this a bug or am I doing something stupid?

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com



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Subject: Re: [parisc-linux] ld problem workaround
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Jason Eckhardt <jason@equator.com> writes:

> Hopefully, we can re-use much of the standard linux code,
>   but I haven't thought about this in detail yet.

Take a look at MILO, the Alpha bootloader.  No need to repeat the work.

-- 
---------------.      drepper at gnu.org  ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Cygnus Solutions `--' drepper at cygnus.com   `------------------------


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Subject: Re: A500 status update
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On Thu, Dec 07, 2000 at 09:16:25AM -0700, Paul Bame wrote:
> I've left many syscalls disabled and think we should keep them turned
> off until it's proven they actually are used.  We should
> probably consider nuking them in the 32-bit kernel too.

i noticed we still had readdir.  i believe glibc always uses getdents.

-- 
Revolutions do not require corporate support.


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Xref: news.gmane.org gmane.linux.ports.parisc:8817

= On Thu, Dec 07, 2000 at 09:16:25AM -0700, Paul Bame wrote:
= > I've left many syscalls disabled and think we should keep them turned
= > off until it's proven they actually are used.  We should
= > probably consider nuking them in the 32-bit kernel too.
= 
= i noticed we still had readdir.  i believe glibc always uses getdents.

readdir is disabled on parisc64 -- hasn't been a problem yet...

	-P


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: eprintf error when xcompiling gcc
Date: Fri, 8 Dec 2000 09:37:58 +1100 (EST)
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__eprintf is used by assert, and only when gcc's own assert.h is used.  So
it seems likely to me that your cross compiler is having difficulty
finding it's libc headers.  Probably a configure/install type problem.

-- 
Linuxcare.  Support for the Revolution.



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From: "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
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Subject: [parisc-linux] FW: hp_boot.log
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Hi all,

I had the impression that the C110 was supported, however when booting from
cd (from palinux.05.iso) i got following results:
Although i think the cd is ok, it might be a good idea to provide the
md5sums as well.....

TIA,

Hans

> Firmware Version  1.3
> 
> Duplex Console IO Dependent Code (IODC) revision 0
> 
> --------------------------------------------------------------------------
> ----
>    (c) Copyright 1990-1996, Hewlett-Packard Company, All rights reserved
> --------------------------------------------------------------------------
> ----
> 
>   Processor   Speed            State           CoProcessor State  Cache
> Size
>   ---------  --------   ---------------------  -----------------
> ----------
> 
>       0      120  Mhz   Active                 Functional          256 KB
> 
>   Central Bus Speed (in mhz)  :        120  
>   Available Memory (bytes)    :  536866816  
>   Good Memory Required (bytes):   48549888  
> 
> 
>    Primary boot path:    core.FWSCSI.6.0
>    Alternate boot path:  core.SCSI.6.0
>    Console path:         GRAPHICS3
>    Keyboard path:        core.PS2
> 
> CPU 0
>   WARNING:  Memory has been initialized, but not tested as a result of
>             FASTBOOT being enabled.  To test memory, disable FASTBOOT
>             and reboot system
> 
> 
> Processor is booting from first available device.
> 
> To discontinue, press any key within 10 seconds.
> 
> Boot terminated.
> 
> 
> ------- Main Menu
> -------------------------------------------------------------
> 
>         Command                         Description
>         -------                         -----------
> 
>         BOot [PRI|ALT|<path>]           Boot from specified path
>         PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
>         SEArch [DIsplay|IPL] [<path>]   Search for boot devices
> 
>         COnfiguration menu              Displays or sets boot values
>         INformation menu                Displays hardware information
>         SERvice menu                    Displays service commands
> 
>         DIsplay                         Redisplay the current menu
>         HElp [<menu>|<command>]         Display help for menu or command
>         RESET                           Restart the system
> -------
> Main Menu: Enter command or menu > sea
> 
> Searching for potential boot device(s)
> This may take several minutes.
> 
> To discontinue search, press any key (termination may not be immediate).
> 
> 
>    Path Number      Device Path                   Device Type
> --------------------------------------------------------------------------
> -
>    P0               core.FWSCSI.6.0               SEAGATE ST32272WD
> 
>    P1               core.FWSCSI.5.0               SEAGATE ST34572WD
> 
>    P2               core.SCSI.2.0                 TOSHIBA CD-ROM XM-5701TA
> 
> 
> 
> Main Menu: Enter command or menu > boot p2
> Interact with IPL (Y or N)?> n
> 
> Booting... 
> Boot IO Dependent Code (IODC) revision 0
> 
> 
> HARD Booted.
> palo ipl bame@noam Tue Oct 31 14:18:02 MST 2000
> 0/vmlinux 2140145 bytes @ 0x6f9800
> 0/palo-cmdline '0/vmlinux ROOT=/ TERM=LINUX root=/dev/scd0'
> Kernel: partition 0 file /vmlinux
> ELF32 executable
> 
> Entry 00100150 first 00100000 n 4
> Segment 0 load 00100000 size 1460344 mediaptr 0x1000
> Segment 1 load 00266000 size 179048 mediaptr 0x166000
> Segment 2 load 00294000 size 109876 mediaptr 0x192000
> Segment 3 load 002b0000 size 8192 mediaptr 0x1ad000
> branching to kernel entry point 0x00100150
> Set default PSW W bit to 0
> PDC Console Initialized
> The 32-bit Kernel has started...
> Enabled FP coprocessor
> Free memory starts at: 0xc02da000
> (0x504d6c,0x504d6c,0x0,0x0)
> PALO command line: 'ROOT=/ TERM=LINUX root=/dev/scd0'
> PALO initrd 0-0
> model   000058e0 00000481 00000000 00000002 777b7670 100000f1 00000004
> 0000008a 0000008a
> vers    0000000d
> cpuid   0000016d
> CPUID vers 11 rev 13
> Searching for devices in PDC firmware... processor hpa 0xfffa0000
> a newer box...
> Found devices:
> 1. Raven T' GSC Core Graphics (10) at 0xf4000000, versions 0x32, 0x0,
> 0x85, 0x0, 0x0
> 2. SkyHawk 100/120 FW-SCSI (4) at 0xf3f8c000, versions 0x1f, 0x0, 0x89,
> 0x0, 0x80
> 3. U2-IOA BC GSC+ Port (7) at 0xf3fbf000, versions 0x501, 0x1, 0xc, 0x0,
> 0x0
> 4. Raven T' Core BA (11) at 0xffd00000, versions 0x32, 0x0, 0x81, 0x0, 0x0
> 5. Raven T' Lasi Core RS-232 (10) at 0xffd05000, versions 0x32, 0x0, 0x8c,
> 0x0, 0x0
> 6. Raven T' Core SCSI (10) at 0xffd06000, versions 0x32, 0x0, 0x82, 0x0,
> 0x0
> 7. Raven T' Core LAN (802.3) (10) at 0xffd07000, versions 0x32, 0x0, 0x8a,
> 0x0, 0x0
> 8. Raven T' Core Centronics (10) at 0xffd02000, versions 0x32, 0x0, 0x74,
> 0x0, 0x0
> 9. Raven T' Core PC Floppy (10) at 0xffd0a000, versions 0x32, 0x0, 0x83,
> 0x0, 0x0
> 10. Raven T' Audio (10) at 0xffd04000, versions 0x32, 0x0, 0x7b, 0x0, 0x0
> 11. Raven T' Core PC Keyboard (10) at 0xffd08000, versions 0x32, 0x0,
> 0x84, 0x0, 0x0
> 12. Raven T' Core PC Keyboard (10) at 0xffd08100, versions 0x32, 0x0,
> 0x84, 0x0, 0x0
> 13. Raven T' Wax BA (11) at 0xffe00000, versions 0x1e, 0x0, 0x8e, 0x0, 0x0
> 14. Raven T' Wax EISA BA (11) at 0xfc000000, versions 0x1e, 0x0, 0x90,
> 0x0, 0x0
> 15. Raven T' Wax RS-232 (10) at 0xffe02000, versions 0x1e, 0x0, 0x8c, 0x0,
> 0x80
> 16. Raven T' Wax HIL (10) at 0xffe01000, versions 0x1e, 0x0, 0x73, 0x0,
> 0x0
> That's a total of 16 devices.
> No CPUs reported by firmware - probing...
> Found CPU at fffa0000
> CPU(s): 1 x PA7200 (PCX-T') at 120.000000 MHz
> Linux version 2.4.0-test6 (pjlahaie@elenuial.thepuffingroup.com) (gcc
> version 2.96 20000925 (experimental)) #32 Mon Nov 6 10:20:58 EST 2000
> free_bootmem(0x2de000, 0x1fd22000)
> initrd: 00000000-00000000
> pagetable_init
> On node 0 totalpages: 131072
> zone(0): 65536 pages.
> zone(1): 65536 pages.
> zone(2): 0 pages.
> Kernel command line: ROOT=/ TERM=LINUX root=/dev/scd0
> trap_init
> Calibrating delay loop... 119.60 BogoMIPS
> Memory: 511600k available
> Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
> Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
> Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
> Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
> POSIX conformance testing by UNIFIX
> Lasi version 0 at 0xffd00000 found.
> 
> Dumping Stack from dfff0000 to dfff0a80:
> 0000 00000000 00000040 00000000 00000000 c027a46c 00000000 00000000
> ffffffff
> 0020 00000004 00000000 00000000 00000000 00000000 00000000 ffffffff
> c027a384
> 0040 c027a384 c02b0000 c02b0000 c028060c 00000000 00000000 00000000
> 00000000
> 0060 00000000 00000000 00000001 00000000 00000000 00000000 00000000
> c02b0000
> 0080 c02b0000 00000000 00000000 00000000 00000000 c02c9ab8 00000000
> dfff009c
> 00a0 dfff009c dfff00a4 c011a6e4 00000000 00000000 00000000 00000000
> 00000000
> 00c0 00000000 00000000 00000000 00000000 00000000 00000000 dfff0000
> c011d4a8
> 00e0 00000000 00000001 00000000 00000000 00000042 00000000 00000043
> 00000000
> 0100 00000000 00000000 00000000 00000000 00000000 80000000 00000000
> 00000000
> 0120 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> 0140 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> 0160 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> 0180 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> 01a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> fffffeff
> 01c0 00000000 ffffffff 00000000 c027afb4 ffffffff ffffffff ffffffff
> ffffffff
> 01e0 ffffffff ffffffff 00800000 05000000 00000000 ffffffff ffffffff
> ffffffff
> 0200 00002000 00002000 00000400 00000400 ffffffff ffffffff ffffffff
> ffffffff
> 0220 00007377 61707065 72000000 00000000 00000000 00000000 00000000
> 00000000
> 0240 00000000 00000000 00020000 c0267054 c0267054 c013d1e8 00040000
> dfffeba0
> 0260 c02238c4 c0236708 c02d9800 00504d6c 00000000 c011bb88 c0267000
> 00020000
> 0280 c0267054 c0267000 0000003e c027a000 00000001 c02b61eb 00000004
> c02b61c7
> 02a0 00000023 c02b61eb 00000000 00000000 c0100290 0000003e 00000000
> 00000024
> 02c0 0000000b c027a4ac c027a000 f00000ac f00000a4 000000ff ffd05800
> ffd05800
> 02e0 ffd05800 00000060 ffffffff ffd05800 002b50c0 c0266000 00000000
> 00000000
> 0300 c02b08c0 00000000 000b0800 00000000 0450060a efdbdf3f 00000000
> fa7fcda2
> 0320 fffffffe 4374efc9 00000000 00000000 00000000 00000000 fffffffe
> 92b2dbaf
> 0340 ffffffff fde3de77 fffffffe 75fb7f5b fffffffe fa9f5fff fffffffe
> ff73bb77
> 0360 00000000 00000000 fffffffe 92f6ec6f fffffffe dffdffab fffffffe
> 5d5bdfaf
> 0380 fffffffe fbe3ebf7 fffffffe 6d735faa fffffffe 4ef1bffb fffffffe
> 17229d7e
> 03a0 fffffffe e5fddfaf d3f3aede a6d6f5fb f7dfdfff ffefffdd 7bd82bfe
> fccf39df
> 03c0 afeffdee d7978797 a3fbedff 7fe5de95 8ffbbefd fddbfffb bfdeffd7
> 78f75f3b
> 03e0 6fbcff3b 70eff7c9 e8ffbfbe faeeff9e eff9c5bf f743cfbf 77fcf7be
> bbffc2e9
> 0400 7d6ffdff fbbef7ef 00000000 00000000 dfff0500 c0103c38 00000000
> 00000000
> 0420 00000000 00000000 00000000 00000000 c011bb78 c011bb7c 7bd82bfe
> fccf39df
> 0440 00281000 00000000 c0280040 c0280064 00000000 c0280204 00000000
> 00000000
> 0460 00000000 00000000 00000000 dfff0468 00000000 00000000 00000000
> 00000000
> 0480 00000000 00000000 ef492a6b dee4e185 bdbf7659 7b0859e1 f610b3c2
> ec57d2d7
> 04a0 d8d910fd b1c494a9 63ff9c01 c7ff3802 8f88c557 1f673ffd 3ece7ffa
> 7d9cfff4
> 04c0 fb39ffe8 f6054a83 ec7c2055 d88ef5f9 b16b5ea1 62a00811 c5401022
> 8af69517
> 04e0 159b9f7d 2b373efa 566e7df4 c0103c48 59cf4283 b39e8506 674bbf5f
> ce977ebe
> 0500 dfff0000 c028060c 00000000 eb189434 d6479d3b acf98f25 5985ab19
> b30b5632
> 0520 66601937 ccc0326e 99f6d18f c01002a4 67362c9a ce6c5934 9cae073b
> 392abb25
> 0540 7255764a e4aaec94 c9236c7b 92306da5 c02b06c0 dfff0000 c028060c
> 00000000
> 0560 c02b0000 8317166c 0658998b 0cb13316 1962662c 32c4cc58 658998b0
> cb133160
> 0580 9650d793 2cd71a75 59ae34ea b35c69d4 66ce66fb cd9ccdf6 9b4f2ebf
> 36e8e82d
> 05a0 6dd1d05a dba3a0b4 b731f43b c0295054 dc2aba4a b823c1c7 703136dd
> e0626dba
> 05c0 c02b0000 8112691d 02526769 04a4ced2 09499da4 12933b48 dfffd140
> 4a4ced20
> 05e0 9499da40 294501d3 528a03a6 c02a5f74 4a5ebbcb 94bd7796 290c5a7f
> 5218b4fe
> 0600 c02d9800 00504d6c c025636c c0266000 c02c8000 00000000 c028d748
> 029f9556
> 0620 053f2aac 0a7e5558 14fcaab0 c02a67c8 53f2aac0 a7e55580 4fbc1e53
> 9f783ca6
> 0640 c02cc000 c0266000 c02c8000 00000000 c028d748 dfffec20 a347a7e1
> 46f9fa91
> 0660 8df3f522 1b915f17 3722be2e c0153e78 dc8af8b8 b9634423 72b03d15
> e5607a2a
> 0680 dffef8ac dffef860 c02c8000 00000000 00000000 c027a6cc dffef7e0
> 00000000
> 06a0 93ee3a7e 27aac1af 4f55835e c0109e74 3d20b82b 7a417056 f482e0ac
> e973740b
> 06c0 d2905d45 a5560fd9 fffa0000 00000002 00000022 dffef160 00000003
> c02ae994
> 06e0 c02c8d00 622fbaff c45f75fe c01536e0 11e6080d 23cc101a 47982034
> 8f304068
> 0700 dffef82c 0000416d c0230d0c dfffb1e0 ffd00000 00000000 c0256ba8
> c0256bb0
> 0720 13dcc342 27b98684 4f730d08 c02a6948 3dba8173 7b7502e6 f6ea05cc
> eda2becb
> 0740 c02c8d00 00000000 dfffb1e0 c02ae994 dfffb1e0 00000000 00000001
> 0000004d
> 0760 00000000 000000bf c0295794 c01dc40c 00504d6c c02c8800 c026c000
> c02c8d00
> 0780 c02ae994 dfffb1e0 c025f904 dfffb1e0 00000012 000081a4 c0256bd0
> 00000000
> 07a0 13f40217 27e8042e 4fd0085c c01dd02c 3f369423 7e6d2846 fcda508c
> f9c2144b
> 07c0 c02c8800 c026c000 c027a000 dfffb1e0 dfffa200 dfffb1e0 dfffb1e0
> c02b61ee
> 07e0 00000000 00000001 c027a000 0000003e 0000003c 00000027 0000000b
> c027a4ac
> 0800 c027a000 f00000ac f00000a4 000000ff ffd05800 ffd05800 ffd05800
> 00000060
> 0820 ffffffff ffd05800 002b50c0 c011e9bc 00000000 00000000 dfff0a00
> 00000000
> 0840 0004000b c0221800 c011e9f8 dfffa220 dfffa200 c0256a3c 00000014
> ffd00000
> 0860 00504d6c c02d9800 c0295794 000000bf 00000000 0000004d 00000001
> 00000000
> 0880 f00010f4 f00000ac f00000a4 ffdfffff dfffa218 ffd00013 ffd00000
> 0000000b
> 08a0 ffffffff dfffa220 dfffa200 c0266000 1749bb45 00000040 dfff0a80
> c012dfc0
> 08c0 000b0800 00000000 0450060a efdbdf3f 00000000 fa7fcda2 fffffffe
> 4374efc9
> 08e0 00000000 00000000 00000000 00000000 fffffffe 92b2dbaf ffffffff
> fde3de77
> 0900 fffffffe 75fb7f5b fffffffe fa9f5fff fffffffe ff73bb77 00000000
> 00000000
> 0920 fffffffe 92f6ec6f fffffffe dffdffab fffffffe 5d5bdfaf fffffffe
> fbe3ebf7
> 0940 fffffffe 6d735faa fffffffe 4ef1bffb fffffffe 17229d7e fffffffe
> e5fddfaf
> 0960 d3f3aede a6d6f5fb f7dfdfff ffefffdd 7bd82bfe fccf39df afeffdee
> d7978797
> 0980 a3fbedff 7fe5de95 8ffbbefd fddbfffb bfdeffd7 78f75f3b 6fbcff3b
> 70eff7c9
> 09a0 e8ffbfbe faeeff9e eff9c5bf f743cfbf 77fcf7be bbffc2e9 7d6ffdff
> fbbef7ef
> 09c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> 09e0 00000000 00000000 c011e710 c011e714 233e60d9 467cc1b2 8cf98364
> 1985b39b
> 0a00 00000000 0000003e c027a000 00000001 00000002 0f881093 00000000
> 1749bb49
> 0a20 c02b61ee 00000000 09045a94 1208b528 24116a50 4822d4a0 9045a940
> 20fde7d3
> 0a40 41fbcfa6 83f79f4c 07998bcb 0f331796 1e662f2c 3ccc5e58 7998bcb0
> f3317960
> 0a60 e6144793 cc5e3a75 98cac1b9 c0104c60 63c66c42 c78cd884 8f6f045b
> 1ea8bde5
> 
> Kernel Fault: Code=15 regs=dfff0840 (Addr=1749bb49)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001011
> r0-3     00000000 c0221800 c011e9f8 dfffa220
> r4-7     dfffa200 c0256a3c 00000014 ffd00000
> r8-11    00504d6c c02d9800 c0295794 000000bf
> r12-15   00000000 0000004d 00000001 00000000
> r16-19   f00010f4 f00000ac f00000a4 ffdfffff
> r20-23   dfffa218 ffd00013 ffd00000 0000000b
> r24-27   ffffffff dfffa220 dfffa200 c0266000
> r28-31   1749bb45 00000040 dfff0a80 c012dfc0
> sr0-4    00000000 00000000 00000000 00000000
> sr4-8    00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: c011e710 c011e714
>  IIR: 0f881093    ISR: 00000000  IOR: 1749bb49
> ORIG_R28: 0000003e


From - Thu Nov 08 21:14:39 2018
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From: Andreas Thienemann <andreas@bawue.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] FW: hp_boot.log
Date: Fri, 08 Dec 2000 17:33:01 +0100
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Cc: "'parisc-linux@thepuffingroup.com'" <parisc-linux@thepuffingroup.com>,
        "'thuis'" <digihans@wishmail.net>
To: "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
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Xref: news.gmane.org gmane.linux.ports.parisc:8820

Hi Hans,

"Witvliet, Hans" wrote:

> I had the impression that the C110 was supported, however when booting from
> cd (from palinux.05.iso) i got following results:
Interesting.

This does resemble the crash I'm experiencing on my D250.

The Kernel boots, finds some Hardware and than dumps stack. Somewhere after
the message "Posix Conformance tested".

The following is from my fault message:
---
Data access rights fault in kernel: Code=26 regs=c7f9c7c0 (Addr=00000004)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001011
r0-3     00000000 c0291800 c02712ec 00000000
r4-7     c7ffc400 ffffffff c01c3870 c025d800
r8-11    c0292800 000000f0 00000000 000000ff
r12-15   000000f2 000000fa 000000fd f0100000
r16-19   f0001180 f0000070 f0000068 00000000
r20-23   c7f9c74e 00000002 c0271574 ffd07000
r24-27   c7f9c750 00000f20 00000000 c023a000
r28-31   00000001 00000000 c7f9ca00 0027b9b8
sr0-4    00000000 00000000 00000000 00000000
sr4-8    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c0271308 c027130c
 IIR: 0e681096    ISR: 00000000  IOR: 00000004
ORIG_R28: 000000fd
---

I guess it has something to do with the "i82596_probe".
Could you do a lookup of the IAOQ Register to see if it is the same?
Get the "build-tools" from the CVs, and use the "a" program to lookup the
symbol in your system-map.

bye,
 andreas


From - Thu Nov 08 21:14:39 2018
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From: "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] FW: hp_boot.log
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To: "'Andreas Thienemann'" <andreas@bawue.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:8821

Hi Andreas,

I tried three other machines, with following results
1) B180c
2) B000  
3) 712    
On the B2000 booting also resulted in stack dump,
on B180c and the 712 the system freezes to death after the "switching to UPL
console" message.

I wonder, if it has something to do with the problem that i encounterd some
time ago with the linux port to sun-hardware.
If the system had to much memory, it was not able to startup.
Cant do much testing now, and next week i am @ HP. (see what happens if i
try to boot from my cd at the hp-trainings lab...;-))

Hans
> -----Original Message-----
> From:	Andreas Thienemann [SMTP:andreas@bawue.de]
> Sent:	Friday, December 08, 2000 5:33 PM
> To:	Witvliet, Hans
> Cc:	'parisc-linux@thepuffingroup.com'; 'thuis'
> Subject:	Re: [parisc-linux] FW: hp_boot.log
> 
> Hi Hans,
> 
> "Witvliet, Hans" wrote:
> 
> > I had the impression that the C110 was supported, however when booting
> from
> > cd (from palinux.05.iso) i got following results:
> Interesting.
> 
> This does resemble the crash I'm experiencing on my D250.
> 
> The Kernel boots, finds some Hardware and than dumps stack. Somewhere
> after
> the message "Posix Conformance tested".
> 
> The following is from my fault message:
> ---
> Data access rights fault in kernel: Code=26 regs=c7f9c7c0 (Addr=00000004)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001011
> r0-3     00000000 c0291800 c02712ec 00000000
> r4-7     c7ffc400 ffffffff c01c3870 c025d800
> r8-11    c0292800 000000f0 00000000 000000ff
> r12-15   000000f2 000000fa 000000fd f0100000
> r16-19   f0001180 f0000070 f0000068 00000000
> r20-23   c7f9c74e 00000002 c0271574 ffd07000
> r24-27   c7f9c750 00000f20 00000000 c023a000
> r28-31   00000001 00000000 c7f9ca00 0027b9b8
> sr0-4    00000000 00000000 00000000 00000000
> sr4-8    00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: c0271308 c027130c
>  IIR: 0e681096    ISR: 00000000  IOR: 00000004
> ORIG_R28: 000000fd
> ---
> 
> I guess it has something to do with the "i82596_probe".
> Could you do a lookup of the IAOQ Register to see if it is the same?
> Get the "build-tools" from the CVs, and use the "a" program to lookup the
> symbol in your system-map.
> 
> bye,
>  andreas
> 
> --------------------------------------------------------------------------
> -
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com
> with
> `unsubscribe' as the subject.


From - Thu Nov 08 21:14:39 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: A500 status update
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References: <200012070634.WAA07459@milano.cup.hp.com> <200012070649.WAA07510@milano.cup.hp.com> <20001207095613.D7166@linuxcare.com> <E1443ib-0003sK-00@noam.fc.hp.com> <20001207204649.A31668@parcelfarce.linux.theplanet.co.uk> <E1449D7-0008AD-00@noam.fc.hp.com>
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Cc: Matthew Wilcox <matthew@wil.cx>, Richard Hirst <rhirst@linuxcare.com>,
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        parisc-linux@puffin.external.hp.com, debian-hppa@lists.debian.org
To: Paul Bame <bame@noam.fc.hp.com>
Original-X-From: willy@www.linux.org.uk  Fri Dec  8 11:06:17 2000
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On Thu, Dec 07, 2000 at 03:08:17PM -0700, Paul Bame wrote:
> = On Thu, Dec 07, 2000 at 09:16:25AM -0700, Paul Bame wrote:
> = > I've left many syscalls disabled and think we should keep them turned
> = > off until it's proven they actually are used.  We should
> = > probably consider nuking them in the 32-bit kernel too.
> = 
> = i noticed we still had readdir.  i believe glibc always uses getdents.
> 
> readdir is disabled on parisc64 -- hasn't been a problem yet...

oh good.  want to disable it on parisc32 too?

-- 
Revolutions do not require corporate support.


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Hans/Andreas,
Re C110 crashing

> 3. U2-IOA BC GSC+ Port (7) at 0xf3fbf000,

I suspect the problem is the CCIO driver isn't seeing the U-turn
chip and DMA will HPMC (crash) the system. We should see some output
from ccio-dma.c driver before LASI "barks".


"Witvliet, Hans" wrote:
> Hi Andreas,
> 
> I tried three other machines, with following results
> 1) B180c
> 2) B000  
> 3) 712    
> On the B2000 booting also resulted in stack dump,

B2000 is like a C3000 with fewer slots/slower CPU.
I don't remember of palinux-v0.5 was tested on that - looks like not.
Newer kernel should work - several of us are using C3k/J5k's for
development.

> on B180c and the 712 the system freezes to death after the "switching to UPL
> console" message.

For B180/712: Read the FAQ at www.parisc-linux.org/faq.html

> 
> I wonder, if it has something to do with the problem that i encounterd some
> time ago with the linux port to sun-hardware.
> If the system had to much memory, it was not able to startup.

Not a problem. We ignore memory beyond 512MB right now.

> Cant do much testing now, and next week i am @ HP. (see what happens if i
> try to boot from my cd at the hp-trainings lab...;-))

enjoy!
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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> On Wed, Dec 06, 2000 at 03:41:06PM -0500, John David Anglin wrote:
> > >     (expr_list:REG_EQUIV (mem/u:SI (lo_sum:SI (reg/f:SI 309)
> > > 		(unspec:SI[
> > > 			(symbol_ref:SI ("constructor_max_index"))
> > > 		    ]  0)) 0)
> 
> This appears to be the same sort of bug as in compile/20001205-1.c
> except that an unspec is involved instead of an asm_operands.
> 
> I wonder if the best solution is to avoid local-alloc creating
> REG_EQUIV notes for every little thing under the sun.  Allow
> only general_operand or something.

I am wondering if side_effects_p should return 1 if it encounters
an UNSPEC.  Currently, it just ignores it.  This would prevent the
generation of the REG_EQUIV notes and I think resolve the problem.
However, it might have other side effects.  Any thoughts on this?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Fri, Dec 08, 2000 at 05:05:21PM -0500, John David Anglin wrote:
> I am wondering if side_effects_p should return 1 if it encounters
> an UNSPEC.

No, because an UNSPEC has no side effects.

As I said before, the simplest thing is to check for general_operand
before creating the REG_EQUAL note.  Any other solution requires reload
to Do Things to the INSN_CODE during rematerialization.


r~


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SILO took the same approach, for the SPARC.

----------------------******-------------------
Steve Ball
NMT EE Department System and Network Admistrator

C/S 3392		|	Work: (505) 835-5330
Socorro, NM 87801	|	Shop: (505) 835-5923 (Solar Racing Shop)
hamster@arctic.nmt.edu	|       Home: (505) 835-6325 (South 335)
www.ee.nmt.edu/~hamster	|	www.nmt.edu/~nmtcaver

The secret of flying is simple: Throw yourself at the ground and miss.
Boy, backups sure are a lot faster since i linked /dev/st0 to /dev/null...
----------------------******-------------------


On 6 May 1999, Ulrich Drepper wrote:

> Jason Eckhardt <jason@equator.com> writes:
> 
> > Hopefully, we can re-use much of the standard linux code,
> >   but I haven't thought about this in detail yet.
> 
> Take a look at MILO, the Alpha bootloader.  No need to repeat the work.
> 
> -- 
> ---------------.      drepper at gnu.org  ,-.   1325 Chesapeake Terrace
> Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
> Cygnus Solutions `--' drepper at cygnus.com   `------------------------
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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Xref: news.gmane.org gmane.linux.ports.parisc:8827

> On Fri, Dec 08, 2000 at 05:05:21PM -0500, John David Anglin wrote:
> > I am wondering if side_effects_p should return 1 if it encounters
> > an UNSPEC.
> 
> No, because an UNSPEC has no side effects.
> 
> As I said before, the simplest thing is to check for general_operand
> before creating the REG_EQUAL note.  Any other solution requires reload
> to Do Things to the INSN_CODE during rematerialization.

It is my impression that the MEM would pass as a general_operand unless
the volatile flag is set.  It will pass GO_IF_LEGITIMATE_ADDRESS.  Thus,
the general_operand test doesn't look like it will work.

Currently, the unchanging bit is set for the MEM.  The comments in
rtl.h say that the bit in a SYMBOL_REF is used for machine specific
purposes.  Could it be used to add machine dependent side effects to
a SYMBOL_REF (or possibly an UNSPEC)?

I think Doing Things to the INSN_CODE during rematerialization is too
late unless there is an initial check to determine whether this is possible.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Fri, Dec 08, 2000 at 08:07:23PM -0500, John David Anglin wrote:
> It is my impression that the MEM would pass as a general_operand unless
> the volatile flag is set.  It will pass GO_IF_LEGITIMATE_ADDRESS.  Thus,
> the general_operand test doesn't look like it will work.

Your GO_IF_LEGITIMATE_ADDRESS will accept the UNSPEC?
The mind boggles.  Why, then, is this strange beast its own insn?

Perhaps that is part of the bug...


r~


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In-Reply-To: <20001208173948.B4198@redhat.com> from "Richard Henderson" at Dec 8, 2000 05:39:48 pm
X-Mailer: ELM [version 2.4 PL25]
Xref: news.gmane.org gmane.linux.ports.parisc:8829

> 
> On Fri, Dec 08, 2000 at 08:07:23PM -0500, John David Anglin wrote:
> > It is my impression that the MEM would pass as a general_operand unless
> > the volatile flag is set.  It will pass GO_IF_LEGITIMATE_ADDRESS.  Thus,
> > the general_operand test doesn't look like it will work.
> 
> Your GO_IF_LEGITIMATE_ADDRESS will accept the UNSPEC?
> The mind boggles.  Why, then, is this strange beast its own insn?

Sure looks like it:

#define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR)  \ 
[snip]
  /* Needed for -fPIC */                                \
  else if (GET_CODE (X) == LO_SUM                       \
           && GET_CODE (XEXP (X, 0)) == REG             \
           && REG_OK_FOR_BASE_P (XEXP (X, 0))           \
           && GET_CODE (XEXP (X, 1)) == UNSPEC)         \
    goto ADDR;                                          \
}

The comment for the insn used to load a PIC MEM says:

; We need this to make sure CSE doesn't simplify a memory load with a
; symbolic address, whose content it think it knows.  For PIC, what CSE
; think is the real value will be the address of that value.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Jeffrey A Law <law@redhat.com>
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Subject: Re: pa reload problem
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             <20001208173948.B4198@redhat.com> 
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Xref: news.gmane.org gmane.linux.ports.parisc:8830

  In message <20001208173948.B4198@redhat.com>you write:
  > On Fri, Dec 08, 2000 at 08:07:23PM -0500, John David Anglin wrote:
  > > It is my impression that the MEM would pass as a general_operand unless
  > > the volatile flag is set.  It will pass GO_IF_LEGITIMATE_ADDRESS.  Thus,
  > > the general_operand test doesn't look like it will work.
  > 
  > Your GO_IF_LEGITIMATE_ADDRESS will accept the UNSPEC?
  > The mind boggles.  Why, then, is this strange beast its own insn?
  > 
  > Perhaps that is part of the bug...
Ironic that this is the hack that I ripped out (for basically the same reasons)
when I started working on V3.

Unfortunately, I can't actually test it yet to see what problems removing
that old hack will expose (FWIW, it's not my hack, and it pre-dates movement
of everything to public lists, so there's no discussion of why the change
was made).


jeff


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From: Richard Henderson <rth@redhat.com>
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Subject: Re: pa reload problem
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Xref: news.gmane.org gmane.linux.ports.parisc:8831

On Fri, Dec 08, 2000 at 09:05:27PM -0700, Jeffrey A Law wrote:
> Unfortunately, I can't actually test it yet to see what problems removing
> that old hack will expose...

Heh.  Perhaps you could forward it to the hppa-linux folk and
see what happens there.  Mayhap their linker is differently
crash-prone.


r~


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: pa reload problem
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To: Jeffrey A Law <law@redhat.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:8832

On Fri, 8 Dec 2000, Jeffrey A Law wrote:

> Ironic that this is the hack that I ripped out (for basically the same reasons)
> when I started working on V3.

Talking of hacks, and changing the subject, I've been hacking the pa
prologue and epilogue code for dwarf2 unwind support.  Still at the
head-scratching stage (danger of splinters), with aborts in
dwarf2out_frame_debug_expr, but here's a fix for a couple of problems in
except.c:eh_regs.

	* except.c (eh_regs): Save results of build_pointer_type to a temp
	as FUNCTION_VALUE macro may evaluate its args multiple times.
	When allocating registers, check for GENERAL_REGS class.

On hppa, we tried to allocate r0 :-(

Alan Modra
-- 
Linuxcare.  Support for the Revolution.

--- gcc/except.c~	Mon Dec  4 14:55:35 2000
+++ gcc/except.c	Sat Dec  9 17:48:21 2000
@@ -3000,15 +3000,15 @@ eh_regs (pcontext, psp, pra, outgoing)
 {
   rtx rcontext, rsp, rra;
   unsigned int i;
+  tree t;
 
+  t = build_pointer_type (void_type_node);
 #ifdef FUNCTION_OUTGOING_VALUE
   if (outgoing)
-    rcontext = FUNCTION_OUTGOING_VALUE (build_pointer_type (void_type_node),
-				        current_function_decl);
+    rcontext = FUNCTION_OUTGOING_VALUE (t, current_function_decl);
   else
 #endif
-    rcontext = FUNCTION_VALUE (build_pointer_type (void_type_node),
-			       current_function_decl);
+    rcontext = FUNCTION_VALUE (t, current_function_decl);
 
 #ifdef STATIC_CHAIN_REGNUM
   if (outgoing)
@@ -3023,7 +3023,9 @@ eh_regs (pcontext, psp, pra, outgoing)
   if (rsp == NULL_RTX)
     {
       for (i = 0; i < FIRST_PSEUDO_REGISTER; ++i)
-	if (call_used_regs[i] && ! fixed_regs[i] && i != REGNO (rcontext))
+	if (call_used_regs[i] && ! fixed_regs[i]
+	    && REGNO_REG_CLASS (i) == GENERAL_REGS
+	    && i != REGNO (rcontext))
 	  break;
       if (i == FIRST_PSEUDO_REGISTER)
 	abort();
@@ -3033,6 +3035,7 @@ eh_regs (pcontext, psp, pra, outgoing)
 
   for (i = 0; i < FIRST_PSEUDO_REGISTER; ++i)
     if (call_used_regs[i] && ! fixed_regs[i]
+	&& REGNO_REG_CLASS (i) == GENERAL_REGS
 	&& i != REGNO (rcontext) && i != REGNO (rsp))
       break;
   if (i == FIRST_PSEUDO_REGISTER)


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From: Richard Henderson <rth@redhat.com>
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Subject: Re: pa reload problem
Date: Fri, 8 Dec 2000 23:55:46 -0800
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Cc: Jeffrey A Law <law@redhat.com>,
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To: Alan Modra <alan@linuxcare.com.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:8833

On Sat, Dec 09, 2000 at 06:52:13PM +1100, Alan Modra wrote:
>    for (i = 0; i < FIRST_PSEUDO_REGISTER; ++i)
>      if (call_used_regs[i] && ! fixed_regs[i]
> +	&& REGNO_REG_CLASS (i) == GENERAL_REGS

This isn't what you meant.  You meant "is this register a 
member of general regs".  What you got was "is general regs
the most specific class for this register".

Which means that ports like x86 where practically every
register has its own class will break.


r~


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: pa reload problem
Date: Sat, 9 Dec 2000 19:35:20 +1100 (EST)
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Xref: news.gmane.org gmane.linux.ports.parisc:8834

On Fri, 8 Dec 2000, Richard Henderson wrote:

> On Sat, Dec 09, 2000 at 06:52:13PM +1100, Alan Modra wrote:
> >    for (i = 0; i < FIRST_PSEUDO_REGISTER; ++i)
> >      if (call_used_regs[i] && ! fixed_regs[i]
> > +	&& REGNO_REG_CLASS (i) == GENERAL_REGS
> 
> This isn't what you meant.  You meant "is this register a 
> member of general regs".  What you got was "is general regs
> the most specific class for this register".

Ah.  What I had to start with was REGNO_REG_CLASS (i) != NO_REGS.
Should have stuck with that.  Hmm, I see local_alloc uses
HARD_REGNO_MODE_OK, so is this better?

        * except.c (eh_regs): Save results of build_pointer_type to a temp
        as FUNCTION_VALUE macro may evaluate its args multiple times.
        When allocating registers, check that the mode is OK.

-- 
Linuxcare.  Support for the Revolution.

--- gcc/except.c~	Mon Dec  4 14:55:35 2000
+++ gcc/except.c	Sat Dec  9 18:56:48 2000
@@ -3000,15 +3000,15 @@ eh_regs (pcontext, psp, pra, outgoing)
 {
   rtx rcontext, rsp, rra;
   unsigned int i;
+  tree t;
 
+  t = build_pointer_type (void_type_node);
 #ifdef FUNCTION_OUTGOING_VALUE
   if (outgoing)
-    rcontext = FUNCTION_OUTGOING_VALUE (build_pointer_type (void_type_node),
-				        current_function_decl);
+    rcontext = FUNCTION_OUTGOING_VALUE (t, current_function_decl);
   else
 #endif
-    rcontext = FUNCTION_VALUE (build_pointer_type (void_type_node),
-			       current_function_decl);
+    rcontext = FUNCTION_VALUE (t, current_function_decl);
 
 #ifdef STATIC_CHAIN_REGNUM
   if (outgoing)
@@ -3023,7 +3023,9 @@ eh_regs (pcontext, psp, pra, outgoing)
   if (rsp == NULL_RTX)
     {
       for (i = 0; i < FIRST_PSEUDO_REGISTER; ++i)
-	if (call_used_regs[i] && ! fixed_regs[i] && i != REGNO (rcontext))
+	if (call_used_regs[i] && ! fixed_regs[i]
+	    && HARD_REGNO_MODE_OK (i, Pmode)
+	    && i != REGNO (rcontext))
 	  break;
       if (i == FIRST_PSEUDO_REGISTER)
 	abort();
@@ -3033,6 +3035,7 @@ eh_regs (pcontext, psp, pra, outgoing)
 
   for (i = 0; i < FIRST_PSEUDO_REGISTER; ++i)
     if (call_used_regs[i] && ! fixed_regs[i]
+	&& HARD_REGNO_MODE_OK (i, Pmode)
 	&& i != REGNO (rcontext) && i != REGNO (rsp))
       break;
   if (i == FIRST_PSEUDO_REGISTER)


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: pa reload problem
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To: Richard Henderson <rth@redhat.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:8835

On Sat, 9 Dec 2000, Alan Modra wrote:

> Ah.  What I had to start with was REGNO_REG_CLASS (i) != NO_REGS.
> Should have stuck with that.  Hmm, I see local_alloc uses
> HARD_REGNO_MODE_OK, so is this better?

Grrr, that allocates r1 first, which loses on 32-bit hppa.  Here's yet
another try, a little more sophisticated this time.

        * except.c (eh_regs): Save results of build_pointer_type to a temp
        as FUNCTION_VALUE macro may evaluate its args multiple times.
        When allocating registers, do so according to REG_ALLOC_ORDER and
	choose GENERAL_REGS.

I was tempted to remove the call_used_regs and fixed_regs tests when
REG_ALLOC_ORDER is defined, but on checking some targets found i860 has a
fixed reg as it's no. 1 priority reg.  Strange.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.

--- gcc/except.c~	Mon Dec  4 14:55:35 2000
+++ gcc/except.c	Sun Dec 10 00:11:29 2000
@@ -2999,16 +2999,16 @@ eh_regs (pcontext, psp, pra, outgoing)
      int outgoing ATTRIBUTE_UNUSED;
 {
   rtx rcontext, rsp, rra;
-  unsigned int i;
+  unsigned int i, r;
+  tree t;
 
+  t = build_pointer_type (void_type_node);
 #ifdef FUNCTION_OUTGOING_VALUE
   if (outgoing)
-    rcontext = FUNCTION_OUTGOING_VALUE (build_pointer_type (void_type_node),
-				        current_function_decl);
+    rcontext = FUNCTION_OUTGOING_VALUE (t, current_function_decl);
   else
 #endif
-    rcontext = FUNCTION_VALUE (build_pointer_type (void_type_node),
-			       current_function_decl);
+    rcontext = FUNCTION_VALUE (t, current_function_decl);
 
 #ifdef STATIC_CHAIN_REGNUM
   if (outgoing)
@@ -3023,22 +3023,39 @@ eh_regs (pcontext, psp, pra, outgoing)
   if (rsp == NULL_RTX)
     {
       for (i = 0; i < FIRST_PSEUDO_REGISTER; ++i)
-	if (call_used_regs[i] && ! fixed_regs[i] && i != REGNO (rcontext))
-	  break;
+	{
+#ifdef REG_ALLOC_ORDER
+	  r = reg_alloc_order[i];
+#else
+	  r = i;
+#endif
+	  if (call_used_regs[r] && ! fixed_regs[r]
+	      && TEST_HARD_REG_BIT (reg_class_contents[(int) GENERAL_REGS], r)
+	      && r != REGNO (rcontext))
+	    break;
+	}
       if (i == FIRST_PSEUDO_REGISTER)
 	abort();
 
-      rsp = gen_rtx_REG (Pmode, i);
+      rsp = gen_rtx_REG (Pmode, r);
     }
 
   for (i = 0; i < FIRST_PSEUDO_REGISTER; ++i)
-    if (call_used_regs[i] && ! fixed_regs[i]
-	&& i != REGNO (rcontext) && i != REGNO (rsp))
-      break;
+    {
+#ifdef REG_ALLOC_ORDER
+      r = reg_alloc_order[i];
+#else
+      r = i;
+#endif
+      if (call_used_regs[r] && ! fixed_regs[r]
+	  && TEST_HARD_REG_BIT (reg_class_contents[(int) GENERAL_REGS], r)
+	  && r != REGNO (rcontext) && r != REGNO (rsp))
+	break;
+    }
   if (i == FIRST_PSEUDO_REGISTER)
     abort();
 
-  rra = gen_rtx_REG (Pmode, i);
+  rra = gen_rtx_REG (Pmode, r);
 
   *pcontext = rcontext;
   *psp = rsp;


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On Sun, Dec 10, 2000 at 12:57:03AM +1100, Alan Modra wrote:
> Grrr, that allocates r1 first, which loses on 32-bit hppa.

Err, elaborate on "loses".

>       When allocating registers, do so according to REG_ALLOC_ORDER and
> 	choose GENERAL_REGS.

The problem with this is that you've broken the ABI for all
extant targets.


r~


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Xref: news.gmane.org gmane.linux.ports.parisc:8837

>>>>> "Ulrich" == Ulrich Drepper <drepper@cygnus.com> writes:

Ulrich> Jason Eckhardt <jason@equator.com> writes:
>> Hopefully, we can re-use much of the standard linux code, but I
>> haven't thought about this in detail yet.

Ulrich> Take a look at MILO, the Alpha bootloader. 

Or SILO, the SPARC bootloader.

-- 
Martin Kasper Petersen			BOFH, IC1&2, Aalborg University, DK
mailto:mkp@SunSITE.auc.dk		http://SunSITE.auc.dk/~mkp/


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Xref: news.gmane.org gmane.linux.ports.parisc:8838

On Sat, 9 Dec 2000, Richard Henderson wrote:

> On Sun, Dec 10, 2000 at 12:57:03AM +1100, Alan Modra wrote:
> > Grrr, that allocates r1 first, which loses on 32-bit hppa.
> 
> Err, elaborate on "loses".

Like so

/src/parisc/gcc-20001208/gcc/libgcc2.c: In function `__throw':
/src/parisc/gcc-20001208/gcc/libgcc2.c:4121: Unable to find a register to
spill in class `R1_REGS'.
/src/parisc/gcc-20001208/gcc/libgcc2.c:4121: This is the insn:

(insn 161 190 163 (set (reg/f:SI 21 %r21)
        (label_ref:SI 169)) 79 {*pa.md:2287} (nil)
    (expr_list:REG_EQUIV (label_ref:SI 169)
        (insn_list:REG_LABEL 169 (nil))))

> >       When allocating registers, do so according to REG_ALLOC_ORDER and
> > 	choose GENERAL_REGS.
> 
> The problem with this is that you've broken the ABI for all
> extant targets.

Pity.  It looked like a nice solution to me.

-- 
Linuxcare.  Support for the Revolution.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 32-bit xc-20001206.tar.gz is foobar
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Xref: news.gmane.org gmane.linux.ports.parisc:8839

Matt,
xc-latest.tar.gz points to xc-20001206.tar.gz.
Could latest be pointed to the previous version?

32-bit 1206 build dies in the link phase with:
...
hppa-linux-ld: fs/fs.o(.text.load_elf_interp+0x2b8): cannot handle R_PARISC_PCREL17F for __up
hppa-linux-ld: fs/fs.o(.text.load_elf_interp+0x2dc): cannot reach 00000010___down+0, recompile with -ffunction-sections
hppa-linux-ld: fs/fs.o(.text.load_elf_interp+0x2dc): cannot handle R_PARISC_PCREL17F for __down
hppa-linux-ld: fs/fs.o(.text.load_aout_interp+0x11c): cannot reach 00000010_flush_instruction_cache+0, recompile with -ffunction-sections
hppa-linux-ld: fs/fs.o(.text.load_aout_interp+0x11c): cannot handle R_PARISC_PCREL17F for flush_instruction_cache
...

later,
grant


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Xref: news.gmane.org gmane.linux.ports.parisc:8840

On Sat, 9 Dec 2000, Grant Grundler wrote:

> Matt,
> xc-latest.tar.gz points to xc-20001206.tar.gz.
> Could latest be pointed to the previous version?
> 
> 32-bit 1206 build dies in the link phase with:
> ...
> hppa-linux-ld: fs/fs.o(.text.load_elf_interp+0x2b8): cannot handle R_PARISC_PCREL17F for __up
> hppa-linux-ld: fs/fs.o(.text.load_elf_interp+0x2dc): cannot reach 00000010___down+0, recompile with -ffunction-sections
> hppa-linux-ld: fs/fs.o(.text.load_elf_interp+0x2dc): cannot handle R_PARISC_PCREL17F for __down
> hppa-linux-ld: fs/fs.o(.text.load_aout_interp+0x11c): cannot reach 00000010_flush_instruction_cache+0, recompile with -ffunction-sections
> hppa-linux-ld: fs/fs.o(.text.load_aout_interp+0x11c): cannot handle R_PARISC_PCREL17F for flush_instruction_cache
> ...

This isn't necessarily a problem with Matt's latest compiler binary.  fs.o
is produced with a "ld -r" link stage, and it's text size is larger than
256k, so there is potential for branches to not be able to reach stubs.

ie. You may get these problems if
 a) You are using an older binutils (ie. not the latest pehc CVS version),
    and aren't using -ffunction-sections to compile the kernel
 b) You are using the very latest binutils, and aren't using
    -ffunction-sections, and I've goofed in my "ld -r" magic.

On a good fs.o, "hppa-linux-readelf -h fs.o" ought to show lots of .text.*
sections.

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: "Roel Teuwen" <Roel.Teuwen@advalvas.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 32-bit xc-20001206.tar.gz is foobar
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Hello,

I am seeing the same error messages with the version fresh form CVS, the
build completes. The problem appeared a week or 2 ago.
The kernel is unable to boot, though, it dies with BUG() at bootmem.c:219

Regards,
Roel

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------=_NextPart_000_005C_01C062C7.957FD290--


From - Thu Nov 08 21:14:40 2018
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X-Mozilla-Keys:                                                                                 
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From: catfish@alltel.net
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Subscribe not working!!!
Date: Sun, 10 Dec 2000 17:35:42 -0600
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 Hello, 
I've been trying to subscribe to the list but majordomo is not
reponding. 
Thanks 
Terry



-- 

Achilles' Biological Findings:
        (1) If a child looks like his father, that's heredity.  If he
            looks like a neighbor, that's environment.
        (2) A lot of time has been wasted arguing over what came first
            -- the chicken or the egg.  It was undoubtedly the
            rooster.


From - Thu Nov 08 21:14:40 2018
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X-Mozilla-Keys:                                                                                 
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From: Alex deVries <adevries@linuxcare.com>
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Subject: [parisc-linux] Harmony driver...
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I'm committing a driver for the harmony audio chip, found in 712s, 715s,
and I think others.

This driver definitely has problems, among them:
- no /dev/dsp or /dev/mixer support at all, you're stuck with the volume
and 8bit 8khz mono ulaw format
- for a reason I haven't yet figured out, interrupts are never called
the second time around; doing a 'cat sample.au > /dev/audio' works the
first time, and hangs the second.  Resetting on open() doesn't seem to
help.  Need to look into this.
- the code can be a lot cleaner
- I doubt this works with anything other than 4k pages
- recording doesn't work
- the buffer allocation scheme can be done quicker

I do expect to clean these things up within a week.

I can do a 'cat free_software_song.au > /dev/audio' and hear reasonable
sound on my 712/80.  It took me awhile to get the clicks and pops out,
as well as getting the chip to play the 4k frames in the right order.

The driver isn't built by default because of the above problems.  But,
you can enable CONFIG_SOUND_GSC_HARMONY.  I'd appreciate feedback from
people with other machines.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Marko.T.Niskanen@nokia.com
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Subject: [parisc-linux] 712/60 booting problem
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hello

after installing from palinux-0.5.iso.gz on cd and during booting I can get
this kind error

  YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011
r0-3     00000000 4001967c 40003f5b 200202c0
r4-7     4001967c 2001ff20 20020310 40019618
r8-11    20020048 40002cb8 400002f0 00000002
r12-15   00000081 00000080 200201e8 2001ff20
r16-19   c3fc4000 c028060c 00000000 4001967c
r20-23   000000d4 00000000 40000000 00000081
r24-27   00000000 20020134 40019f48 c0145da8
r28-31   40019f60 20020048 20020350 40002d1b
sr0-4    00000000 0000cba0 00000000 0000ffff
sr4-8    00002000 00002000 00002000 00002000

IASQ: 00002000 00002000 IAOQ: 4000ccdb 4000ccdf
 IIR: 55005086    ISR: 0000cba0  IOR: 2002088b
ORIG_R28: 00000000
!!die_if_kernel: init(1): Illegal instruction 8

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011
r0-3     00000000 4001967c 40003f5b 200202c0
r4-7     4001967c 2001ff20 20020310 40019618
r8-11    20020048 40002cb8 400002f0 00000002
r12-15   00000081 00000080 200201e8 2001ff20
r16-19   c3fc4000 c028060c 00000000 4001967c
r20-23   000000d4 00000000 40000000 00000081
r24-27   00000000 20020134 40019f48 c0145da8
r28-31   40019f60 20020048 20020350 40002d1b
sr0-4    00000000 0000cba0 00000000 0000ffff
sr4-8    00002000 00002000 00002000 00002000

IASQ: 00002000 00002000 IAOQ: 4000ccdb 4000ccdf
 IIR: 55005086    ISR: 0000cba0  IOR: 2002088b
ORIG_R28: 00000000
!!die_if_kernel: init(1): Illegal instruction 8

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011
r0-3     00000000 4001967c 40003f5b 200202c0
r4-7     4001967c 2001ff20 20020310 40019618
r8-11    20020048 40002cb8 400002f0 00000002
r12-15   00000081 00000080 200201e8 2001ff20
r16-19   c3fc4000 c028060csetup.c: (cmd=1)
kmem_cr000
r8-11    c02b0000 00000000 00000000 c0145f44
r12-15   00000000 00000000 00000000 00000000
r16-19   c3fc4000 c028060c 00000000 00000000
r20-23   3e64415c 00000000 00000000 00000000
r24-27   2001ff24 00000001 40019dec c0145da8
r28-31   00000000 00000000 20020040 40002d1b
sr0-4    00000000 0000cba0 00000000 0000ffff
sr4-8    00002000 00002000 00002000 00002000

IASQ: 00002000 00002000 IAOQ: 40002d53 40002d57
 IIR: 04000000    ISR: 00000000  IOR: 00000000
ORIG_R28: 00000000
!!die_if_kernel: init(1): Priviledged operation - shouldn't happen! 10

     000000 00000000
r20-23   3e64415c 00000000 00000000 00000000
r24-27   2001ff24 00000001 40019dec c0145da8
r28-31   00000000 00000000 20020040 40002d1b
sr0-4    00000000 0000cba0 00000000 0000ffff
sr4-8    00002000 00002000 00002000 00002000

IASQ: 00002000 00002000 IAOQ: 40002d53 40002d57
 IIR: 04000000    ISR: 00000000  IOR: 00000000
ORIG_R28: 00000000
!!die_if_kernel: init(1): Priviledged operation - shouldn't happen! 10

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001000111100001011
r0-3     00000000 4001952c c028060c 00000000
r4-7     c02b0000 c3fc4000 c028060c 00000000
r8-11    c02b0000 00000000 00000000 c0145f44
r12-15   00000000 00000000 00000000 00000000
r16-19   c3fc4000 c028060c 00000000 00000000
r20-23   3e64415c 00000000 00000000 00000000
r24-27   2001ff24 00000001 40019dec c0145da8
r28-31   00000000 00000000 20020040 40002d1b
sr0-4    00000000 0000cba0 00000000 0000ffff
sr4-8    00002000 00002000 00002000 00002000

IASQ: 00002000 00002000 IAOQ: 40002d53 40002d57
 IIR: 04000000    ISR: 00000000  IOR: 00000000
ORIG_R28: 00000000
!!die_if_kernel: init(1): Priviledged operation - shouldn't happen! 10

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001000111100001011
                                     0002000

IASQ: 00002000 00002000 IAOQ: 40002d53 40002d57
 IIR: 04000000    ISR: 00000000  IOR: 00000000
ORIG_R28: 00000000
!!die_if_kernel: init(1): Priviledged operation - shouldn't happen! 10

Whats problem is?


From - Thu Nov 08 21:14:41 2018
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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] A500 status update
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To: Grant Grundler <grundler@cup.hp.com>
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On Wed, Dec 06, 2000 at 10:34:55PM -0800, Grant Grundler wrote:
> o dd to raw disk isn't working right. "No space left on device".

Fixed.  Needs mfctl,w to read all 6 bits of SAR in wide mode.

Richard


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From: Jes Sorensen <jes@linuxcare.com>
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Subject: Re: [parisc-linux] A500 status update
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>>>>> "Grant" == Grant Grundler <grundler@cup.hp.com> writes:

Grant> o dd to
Grant> raw disk isn't working right. "No space left on device".  See
Grant> the output below.

Likely cause would be that the structs for stat don't match between
the kernel and glibc. I still think the best approach would be to go
for a clean 64 bit userland from the beginning as we have on the Alpha
and ia64 and provide backwards compat support afterwards. I don't like
to see the hppa64 port end up in the same situation as sparc64 where
almost nothing gets done for years because there is already a 32 bit
userland.

Anyway it looks to me like someone needs to sit down and decide on a
strategy for this and review all the data structures accordingly.

Grant> o don't see Acenic driver output. I've got
Grant> CONFIG_ACENIC=y and the device is definitely seen by PCI.

Bug in the driver, compile it as a loadable module and it will work
... or grab http://home.cern.ch/~jes/gige/acenic-0.49-test2.tar.gz

Jes


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 712/60 booting problem
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Marko.T.Niskanen@nokia.com wrote:
> 
> hello
> 
> after installing from palinux-0.5.iso.gz on cd and during booting I can get
> this kind error

Okay.  You've got to give us some sort of clue as to what kind of
machine that is, because I can't guess.

- Alex


-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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>   The source is fairly complete in the sense that the bootstrap can load
>   a kernel image and transfer control to it. If we had a linux kernel, it could
>   be booted today.

Is there any reason not to let this stay in the kernel tree ? I think being able
to make the necessary changes in the CVS tree instead of sending them to you would
be convenient. (Or is the "official version" the CVS one ?)


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From: Jeffrey A Law <law@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: pa reload problem
Date: Mon, 11 Dec 2000 10:29:04 -0700
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  In message <20001208225552.A4476@redhat.com>you write:
  > On Fri, Dec 08, 2000 at 09:05:27PM -0700, Jeffrey A Law wrote:
  > > Unfortunately, I can't actually test it yet to see what problems removing
  > > that old hack will expose...
  > 
  > Heh.  Perhaps you could forward it to the hppa-linux folk and
  > see what happens there.  Mayhap their linker is differently
  > crash-prone.
I wouldn't count on it :-)  And in general PA linux just isn't ready for
the kind of testing I need to do for this patch.

What I really need to do is backport it into devo or 2000r1 where I can
beat on the PIC & shared library code a little harder than I can on the
external tree right now due to libstdc++-v3 issues.

jeff


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In-Reply-To: <30059.976555744@upchuck> from "Jeffrey A Law" at Dec 11, 2000 10:29:04 am
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>   In message <20001208225552.A4476@redhat.com>you write:
>   > On Fri, Dec 08, 2000 at 09:05:27PM -0700, Jeffrey A Law wrote:
>   > > Unfortunately, I can't actually test it yet to see what problems removing
>   > > that old hack will expose...
>   > 
>   > Heh.  Perhaps you could forward it to the hppa-linux folk and
>   > see what happens there.  Mayhap their linker is differently
>   > crash-prone.
> I wouldn't count on it :-)  And in general PA linux just isn't ready for
> the kind of testing I need to do for this patch.
> 
> What I really need to do is backport it into devo or 2000r1 where I can
> beat on the PIC & shared library code a little harder than I can on the
> external tree right now due to libstdc++-v3 issues.

This thread started when I attempted a bootstrap with "-g -O3 -fPIC".  The
full bootstrap gives a pretty good check of PIC code generation at least
for non shared code.  For the moment, I disable the new ABI and v3 for
my builds.  You might try "--enable-shared" as well.

I was going to deleting the hack and adding a general_operand test in
local-alloc to see if that would fix the reload problem with "-fPIC".
However, for the moment, there are still problems with a "normal" build
at "-O3".  With only the yesterdays CVS source and the patch below
to prevent rename registers walking of the return pointer, I get the
following failure building libstdc++ v2:

/xxx/gnu/gcc-2.97/objdir/gcc/g++ -B/xxx/gnu/gcc-2.97/objdir/gcc/ -nostdinc++ -isystem /xxx/gnu/gcc-2.97/libstdc++ -isystem /xxx/gnu/gcc-2.97/libstdc++/std -isystem /xxx/gnu/gcc-2.97/libstdc++/stl -isystem /xxx/gnu/gcc-2.97/libio -isystem /xxx/gnu/gcc-2.97/objdir/hppa1.1-hp-hpux10.20/libio -L/xxx/gnu/gcc-2.97/objdir/hppa1.1-hp-hpux10.20/libstdc++ -B/usr/local/hppa1.1-hp-hpux10.20/bin/ -B/usr/local/hppa1.1-hp-hpux10.20/lib/ -isystem /usr/local/hppa1.1-hp-hpux10.20/include -c -O3 -fno-implicit-templates -I../../../libstdc++ -I../../../libstdc++/stl -I../libio -I../../../libstdc++/../libio -I../../../libstdc++/../include -I../../../libstdc++/../gcc -nostdinc++  ../../../libstdc++/exception.cc
../../../libstdc++/exception.cc: In function `void __check_eh_spec(int, const 
   void**)':
../../../libstdc++/exception.cc:363: Internal error: Segmentation fault.
Please submit a full bug report.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[1]: *** [exception.o] Error 1
make[1]: Leaving directory `/xxx/gnu/gcc-2.97/objdir/hppa1.1-hp-hpux10.20/libstdc++'
make: *** [all-target-libstdc++] Error 2

The seg fault occurs in make_edge called from make_label_edge.  It occurs
because BLOCK_FOR_INSN (label) is 0.  The label either has been deleted or
never emitted.  I believe the reference comes from a note.  Didn't have
this problem last week.  If anybody is aware of a change that might have
affected this, let me know.

Progress has been slow in debugging this because there are problems with
the current version of gdb.  Register printouts and even the location
of seg faults is sometimes wrong.  Have to use adb to check results (yuck).
Need to get the current cvs version of gdb working properly on the pa again.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2000-12-08  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa.h: Define RETURN_POINTER_REGNUM and EPILOGUE_USES.

--- pa.h.orig	Wed Dec  6 20:21:25 2000
+++ pa.h	Fri Dec  8 16:28:58 2000
@@ -480,6 +480,9 @@
 #define INITIAL_FRAME_POINTER_OFFSET(VAR) \
   do {(VAR) = - compute_frame_size (get_frame_size (), 0);} while (0)
 
+/* Register in which the return pointer/address is passed to a function.  */
+#define RETURN_POINTER_REGNUM 2
+
 /* Base register for access to arguments of the function.  */
 #define ARG_POINTER_REGNUM 3
 
@@ -890,6 +893,11 @@
    functions that have frame pointers.
    No definition is equivalent to always zero.  */
 
+/* Define this macro as a C expression that is nonzero for registers
+   used by the epilogue or the `return' pattern.  */
+
+#define EPILOGUE_USES(REGNO) ((REGNO) == RETURN_POINTER_REGNUM)
+
 extern int may_call_alloca;
 
 #define EXIT_IGNORE_STACK	\


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] A500 status update
Date: Mon, 11 Dec 2000 18:52:32 +0000
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Cc: Grant Grundler <grundler@cup.hp.com>, parisc-linux@puffin.external.hp.com,
        debian-hppa@lists.debian.org
To: Jes Sorensen <jes@linuxcare.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:8851

On Mon, Dec 11, 2000 at 04:37:16PM +0100, Jes Sorensen wrote:
> >>>>> "Grant" == Grant Grundler <grundler@cup.hp.com> writes:
> 
> Grant> o dd to
> Grant> raw disk isn't working right. "No space left on device".  See
> Grant> the output below.
> 
> Likely cause would be that the structs for stat don't match between
> the kernel and glibc. I still think the best approach would be to go
> for a clean 64 bit userland from the beginning as we have on the Alpha
> and ia64 and provide backwards compat support afterwards. I don't like
> to see the hppa64 port end up in the same situation as sparc64 where
> almost nothing gets done for years because there is already a 32 bit
> userland.

This 'no space' problem was caused by an error in the register save/
restore on interrupts, for 64 bit (assembly.h):

date: 2000/12/11 13:10:49;  author: rhirst;  state: Exp;  lines: +10 -0
cr11 (sar) is a funny one.  5 bits on PA1.1 and 6 bit on PA2.0.  For
PA2.0 mtsar or mtctl always write 6 bits, but mfctl only reads 5 bits.
Use mfctl,w to read all six bits.  Otherwise we loose the 6th bit on a
save/restore over interrupt.  Caused dd of=/dev/sdaX to report no space
available at random.

Richard


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Xref: news.gmane.org gmane.linux.ports.parisc:8852

On Fri, Dec 08, 2000 at 03:45:27PM -0800, Richard Henderson wrote:
> On Fri, Dec 08, 2000 at 05:05:21PM -0500, John David Anglin wrote:
> > I am wondering if side_effects_p should return 1 if it encounters
> > an UNSPEC.
> 
> No, because an UNSPEC has no side effects.

To be pedantic, an UNSPEC by itself has no side effects, but obviously an
UNSPEC could have arguments that use PRE_DEC, PRE_INC, POST_MODIFY, etc.

> As I said before, the simplest thing is to check for general_operand
> before creating the REG_EQUAL note.  Any other solution requires reload
> to Do Things to the INSN_CODE during rematerialization.

-- 
Michael Meissner, Red Hat, Inc.
PMB 198, 174 Littleton Road #3, Westford, Massachusetts 01886, USA
Work:	  meissner@redhat.com		phone: +1 978-486-9304
Non-work: meissner@spectacle-pond.org	fax:   +1 978-692-4482


From - Thu Nov 08 21:14:41 2018
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From: jcarlson@macalester.edu
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Subject: [parisc-linux] Linux on HP
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 Mon, 11 Dec 2000 15:45:48 CDT
Xref: news.gmane.org gmane.linux.ports.parisc:8853

Recently I've been assigned the task of setting up a few old HP machines
for paralell processing tasks.  In doing so, I have come upon your project
in porting linux to HP machines.
I was curious as to the status of a few of the projects as well as the
availability of possible binary distributions.
I'm curious about the status of Merlin 160, Raven 120 T' and Gecko.
Any information you could give me would be most helpful.
Thank you,
 - Josiah Carlson


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: pa reload problem
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:8854

On Mon, 11 Dec 2000, John David Anglin wrote:

> Progress has been slow in debugging this because there are problems with
> the current version of gdb.

You're not kidding!  I'm rewriting the gdb hppa target dependent code to
use the gdb multi-arch scheme...

>  Register printouts and even the location
> of seg faults is sometimes wrong.  Have to use adb to check results (yuck).
> Need to get the current cvs version of gdb working properly on the pa again.

-- 
Linuxcare.  Support for the Revolution.


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] gcc wchar patch for hppa64
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In-Reply-To: <Pine.LNX.4.21.0012102347330.31734-100000@front.linuxcare.com.au> from "Alan Modra" at Dec 11, 2000 00:02:57 am
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Xref: news.gmane.org gmane.linux.ports.parisc:8855

Alan,

This patch fixes a problem with wide characters.  We need to override the
defines in svr4.h.  With this, I get much further building a 64 bit glibc.
Please review and install if ok.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2000-12-11  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa-linux64.h: Define WCHAR_TYPE and WCHAR_TYPE_SIZE per ABI.

--- pa-linux64.h.orig	Mon Oct 30 02:58:24 2000
+++ pa-linux64.h	Mon Dec 11 18:15:14 2000
@@ -158,9 +158,13 @@
   Make GCC agree with types.h.  */
 #undef SIZE_TYPE
 #undef PTRDIFF_TYPE
+#undef WCHAR_TYPE
+#undef WCHAR_TYPE_SIZE
 
 #define SIZE_TYPE "long unsigned int"
 #define PTRDIFF_TYPE "long int"
+#define WCHAR_TYPE "unsigned int"
+#define WCHAR_TYPE_SIZE 32
 
 /* If it is not listed here, then the default selected by GCC is OK.  */
 #define SHORT_TYPE_SIZE 16


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: gcc wchar patch for hppa64
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On Mon, 11 Dec 2000, John David Anglin wrote:

> This patch fixes a problem with wide characters.  We need to override the
> defines in svr4.h.  With this, I get much further building a 64 bit glibc.
> Please review and install if ok.

Thanks!  Installed.

-- 
Linuxcare.  Support for the Revolution.





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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 712/60 booting problem
Date: Mon, 11 Dec 2000 23:46:15 -0500
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Alex deVries wrote:
> 
> Marko.T.Niskanen@nokia.com wrote:
> >
> > hello
> >
> > after installing from palinux-0.5.iso.gz on cd and during booting I can get
> > this kind error
> 
> Okay.  You've got to give us some sort of clue as to what kind of
> machine that is, because I can't guess.

What a silly question, since you mentioned it in your subject it was a
712/80.

Where do you get the problem?  Do you have a bootlog for us?

- Alex


-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Marko.T.Niskanen@nokia.com
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] 712/60 booting problem
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Hi

Sorry I have no boot log, because linux doesn't start and I have no idea how
to get it an another way.  after text on console "switching from PDC
console", I can read from serial port: 

kmem_create: Forcing size word alignment - nfs_fh VFS: Mounted root (ext2
filesystem) readonly. !!die_if_kernel: init(1): Illegal instruction 8

and after that starts that "loop" 

ORIG_R28: 4001ad7c

handle_interruption() pid=1 command='init'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011000000000000001011
r0-3     00000000 40136c24 400462f7 40136c1c
r4-7     40138c38 2001ff2c 2001ff24 00000001
r8-11    2001ff2c 2001ff24 00000001 4001ada0
r12-15   4001ad7c 00000000 00000000 00000000
r16-19   c3fc4000 c028060c 00000000 40138c38
r20-23   4013d754 4013ac38 400540bc 40136290
r24-27   2001ff2c 2001ff24 00000001 c0145da8
r28-31   40019450 4013a438 20020180 400462f7
sr0-4    00000000 00002000 00000000 00002000
sr4-8    00002000 00002000 00002000 00002000

...and so on..

Marko

> -----Original Message-----
> From: EXT Alex deVries [mailto:adevries@linuxcare.com]
> Sent: 12 December, 2000 6:46
> To: Marko.T.Niskanen@nokia.com; parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] 712/60 booting problem
> 
> 
> Alex deVries wrote:
> > 
> > Marko.T.Niskanen@nokia.com wrote:
> > >
> > > hello
> > >
> > > after installing from palinux-0.5.iso.gz on cd and during 
> booting I can get
> > > this kind error
> > 
> > Okay.  You've got to give us some sort of clue as to what kind of
> > machine that is, because I can't guess.
> 
> What a silly question, since you mentioned it in your subject it was a
> 712/80.
> 
> Where do you get the problem?  Do you have a bootlog for us?
> 
> - Alex
> 
> 
> -- 
> Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
> 613.562.2759 tel
> alex@linuxcare.com, http://www.linuxcare.com/
> Linuxcare, Support for the revolution.
> 
> --------------------------------------------------------------
> -------------
> To unsubscribe: send e-mail to 
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


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> Is there any reason not to let this stay in the kernel tree ? I think being able
> to make the necessary changes in the CVS tree instead of sending them to you would
> be convenient. (Or is the "official version" the CVS one ?)
>

  Currently I am behind a firewall and cannot use CVS through it. This
  will be remedied shortly. In any case, a slightly older version of the
  bootloader is in the CVS tree. The mentioned file is the newest version,
  though, and should probably be used instead.
  What code are you proposing to add to the bootloader? ext2 support is
  underway.
  Jason.


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Marko.T.Niskanen@nokia.com writes...

> Sorry I have no boot log, because linux doesn't start and I have no idea how
> to get it an another way.  after text on console "switching from PDC
> console", I can read from serial port: 

If you set your 712 to serial console you can capture it, but I don't know if 
I'd recommend doing that since STI will be better long term.

> kmem_create: Forcing size word alignment - nfs_fh VFS: Mounted root (ext2
> filesystem) readonly. !!die_if_kernel: init(1): Illegal instruction 8
> 
> and after that starts that "loop" 

I get the same loop here but with a newer kernel and libc. Did you update your 
kernel or libc at all? I think the 0.5 CD should work fine on a 712/60.

-- 
Matt Taggart
taggart@fc.hp.com



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jcarlson@macalester.edu writes...

> Recently I've been assigned the task of setting up a few old HP machines
> for paralell processing tasks.  In doing so, I have come upon your project
> in porting linux to HP machines.
> I was curious as to the status of a few of the projects

We're making good progress but the port is still in an alpha stage. 
Performance is pretty poor but improving. Depending on what your "parallel 
processing tasks" are you may want to wait to start playing. If you have some 
time and don't mind hacking (it's fun!) then you might consider giving it a 
try.

> as well as the
> availability of possible binary distributions.

Both Debian and RedHat are working on unofficial/experimental distributions. 
Both have hundreds of packages built for hppa.

> I'm curious about the status of Merlin 160, Raven 120 T' and Gecko.

Most of the core developers have both a B160/B180/A180 and some sort of 712 so 
they mostly work. I don't know the current status of the C110 but I think it 
works. You might consider looking at and adding your machines to the Hardware 
Database at,

http://parisc-linux.org/hw.html

-- 
Matt Taggart
taggart@fc.hp.com



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catfish@alltel.net writes...

>  Hello, 
> I've been trying to subscribe to the list but majordomo is not
> reponding. 

It's working for me. I tried "help", "subscribe" and "unsubscribe". You're 
using the parisc-linux-request@thepuffingroup.com address right?

-- 
Matt Taggart
taggart@fc.hp.com



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Alan Modra writes...

> > hppa-linux-ld: fs/fs.o(.text.load_aout_interp+0x11c): cannot reach 00000010
> _flush_instruction_cache+0, recompile with -ffunction-sections
> > hppa-linux-ld: fs/fs.o(.text.load_aout_interp+0x11c): cannot handle R_PARIS
> C_PCREL17F for flush_instruction_cache
> > ...
> 
> This isn't necessarily a problem with Matt's latest compiler binary.  fs.o
> is produced with a "ld -r" link stage, and it's text size is larger than
> 256k, so there is potential for branches to not be able to reach stubs.
> 
> ie. You may get these problems if
>  a) You are using an older binutils (ie. not the latest pehc CVS version),
>     and aren't using -ffunction-sections to compile the kernel
>  b) You are using the very latest binutils, and aren't using
>     -ffunction-sections, and I've goofed in my "ld -r" magic.

I just built a new cross-compiler (xc-20001211.tar.gz) and am still getting 
similar errors when building the kernel. It doesn't seem to matter if I have 
-ffunction-sections in the kernel Makefile or not.

> On a good fs.o, "hppa-linux-readelf -h fs.o" ought to show lots of .text.*
> sections.

$ hppa-linux-readelf -h fs.o
ELF Header:
  Magic:   7f 45 4c 46 01 02 01 03 00 00 00 00 00 00 00 00 
  Class:                             ELF32
  Data:                              2's complement, big endian
  Version:                           1 (current)
  OS/ABI:                            UNIX - Linux
  ABI Version:                       0
  Type:                              REL (Relocatable file)
  Machine:                           HPPA
  Version:                           0x1
  Entry point address:               0x0
  Start of program headers:          0 (bytes into file)
  Start of section headers:          360836 (bytes into file)
  Flags:                             0x210, PA-RISC 1.1
  Size of this header:               52 (bytes)
  Size of program headers:           0 (bytes)
  Number of program headers:         0
  Size of section headers:           40 (bytes)
  Number of section headers:         92
  Section header string table index: 89

HTH,

-- 
Matt Taggart
taggart@fc.hp.com



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From: Marko.T.Niskanen@nokia.com
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Subject: RE: [parisc-linux] 712/60 booting problem
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hi

Just installed linux again and during the installation booting I got
messages like 

kmem_create: Forcing size word alignment - nfs_fh
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
VFS: Disk change detected on device sr(11,0)
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
kernel BUG at pci-dma.c:391!
kernel BUG at pci-dma.c:400!
ISO 9660 Extensions: RRIP_1991A
VFS: Mounted root (iso9660 filesystem) readonly.

and I searched an old mailing lists and I found same kind problem, but
didn't find any solution of it.

http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/11-Nov/0191.ht
ml

But there is nothing  
> -----Original Message-----
> From: EXT Matt Taggart [mailto:taggart@carmen.fc.hp.com]
> Sent: 12 December, 2000 9:22
> To: Marko.T.Niskanen@nokia.com
> Cc: parisc-linux@thepuffingroup.com; adevries@linuxcare.com
> Subject: Re: [parisc-linux] 712/60 booting problem 
> 
> 
> 
> Marko.T.Niskanen@nokia.com writes...
> 
> > Sorry I have no boot log, because linux doesn't start and I 
> have no idea how
> > to get it an another way.  after text on console "switching from PDC
> > console", I can read from serial port: 
> 
> If you set your 712 to serial console you can capture it, but 
> I don't know if 
> I'd recommend doing that since STI will be better long term.
> 
> > kmem_create: Forcing size word alignment - nfs_fh VFS: 
> Mounted root (ext2
> > filesystem) readonly. !!die_if_kernel: init(1): Illegal 
> instruction 8
> > 
> > and after that starts that "loop" 
> 
> I get the same loop here but with a newer kernel and libc. 
> Did you update your 
> kernel or libc at all? I think the 0.5 CD should work fine on 
> a 712/60.
> 
> -- 
> Matt Taggart
> taggart@fc.hp.com
> 
> 
> --------------------------------------------------------------
> -------------
> To unsubscribe: send e-mail to 
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


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Subject: Re: [parisc-linux] 32-bit xc-20001206.tar.gz is foobar
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Xref: news.gmane.org gmane.linux.ports.parisc:8865


Alan Modra writes...

> On Tue, 12 Dec 2000, Matt Taggart wrote:
> 
> > Alan Modra writes...
> > 
> > 
> > I just built a new cross-compiler (xc-20001211.tar.gz) and am still getting
>  
> > similar errors when building the kernel. It doesn't seem to matter if I hav
> e 
> > -ffunction-sections in the kernel Makefile or not.
> > 
> > > On a good fs.o, "hppa-linux-readelf -h fs.o" ought to show lots of .text.
> *
> > > sections.
> 
> Oops, sorry.  "hppa-linux-objdump -h" or "hppa-linux-readelf -S"

$ hppa-linux-objdump -h fs.o

fs.o:     file format elf32-hppa-linux

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .rodata       0000c06c  00000000  00000000  00000034  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA
  1 .PARISC.unwind 00003b90  00000000  00000000  0000c0a0  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA
  2 __ex_table    00000530  00000000  00000000  0000fc30  2**0
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA
  3 .data         00001da0  00000000  00000000  00010160  2**3
                  CONTENTS, ALLOC, LOAD, RELOC, DATA
  4 .initcall.init 00000030  00000000  00000000  00011f00  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, DATA
  5 .exitcall.exit 0000001c  00000000  00000000  00011f30  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, DATA
  6 .init.data    000007d0  00000000  00000000  00011f4c  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, DATA
  7 .setup.init   00000008  00000000  00000000  0001271c  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, DATA
  8 .bss          00001ec8  00000000  00000000  00012724  2**2
                  ALLOC
  9 .comment      00000cf9  00000000  00000000  00012724  2**0
                  CONTENTS, READONLY
 10 .text         00000008  00000000  00000000  00013420  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
 11 .init.text    00001b3c  00000000  00000000  00013428  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 12 .text.1       00005f48  00000000  00000000  00014f64  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 13 .text.2       00003078  00000000  00000000  0001aeac  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 14 .text.3       000053f0  00000000  00000000  0001df24  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 15 .text.4       000044c8  00000000  00000000  00023314  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 16 .text.5       000070b8  00000000  00000000  000277dc  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 17 .text.6       000050cc  00000000  00000000  0002e894  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 18 .text.7       00005ce0  00000000  00000000  00033960  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 19 .text.8       0000265c  00000000  00000000  00039640  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 20 .text.9       00003eec  00000000  00000000  0003bc9c  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 21 .text.10      00003e04  00000000  00000000  0003fb88  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 22 .exit.text    000000f8  00000000  00000000  0004398c  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 23 .text.11      000047f0  00000000  00000000  00043a84  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 24 .text.12      00000be4  00000000  00000000  00048274  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 25 .text.13      00000408  00000000  00000000  00048e58  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 26 .text.14      000008b0  00000000  00000000  00049260  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 27 .text.15      00000da8  00000000  00000000  00049b10  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 28 .text.16      00000390  00000000  00000000  0004a8b8  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 29 .text.17      00003280  00000000  00000000  0004ac48  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 30 .text.18      00001584  00000000  00000000  0004dec8  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 31 .text.19      000015fc  00000000  00000000  0004f44c  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 32 .text.20      0000048c  00000000  00000000  00050a48  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 33 .text.21      000000d8  00000000  00000000  00050ed4  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 34 .text.22      00000400  00000000  00000000  00050fac  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 35 .text.23      00000394  00000000  00000000  000513ac  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 36 .text.24      000002a4  00000000  00000000  00051740  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 37 .text.25      00000008  00000000  00000000  000519e4  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
 38 .text.26      00000880  00000000  00000000  000519ec  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 39 .text.27      0000025c  00000000  00000000  0005226c  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 40 .text.28      00002370  00000000  00000000  000524c8  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 41 .text.29      00000000  00000000  00000000  00054838  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
 42 .text.30      000009c4  00000000  00000000  00054838  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 43 .text.31      00000000  00000000  00000000  000551fc  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
 44 .text.32      0000056c  00000000  00000000  000551fc  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 45 .text.33      00001fb4  00000000  00000000  00055768  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
 46 .text.34      00000000  00000000  00000000  0005771c  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
 47 .note         00000654  00000000  00000000  0005771c  2**0
                  CONTENTS, READONLY

-- 
Matt Taggart
taggart@fc.hp.com



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Subject: Re: [parisc-linux] 32-bit xc-20001206.tar.gz is foobar
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Xref: news.gmane.org gmane.linux.ports.parisc:8866

On Tue, 12 Dec 2000, Matt Taggart wrote:

> Alan Modra writes...
> 
> 
> I just built a new cross-compiler (xc-20001211.tar.gz) and am still getting 
> similar errors when building the kernel. It doesn't seem to matter if I have 
> -ffunction-sections in the kernel Makefile or not.
> 
> > On a good fs.o, "hppa-linux-readelf -h fs.o" ought to show lots of .text.*
> > sections.

Oops, sorry.  "hppa-linux-objdump -h" or "hppa-linux-readelf -S"

> $ hppa-linux-readelf -h fs.o
> ELF Header:

-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] 32-bit xc-20001206.tar.gz is foobar
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On Tue, 12 Dec 2000, Matt Taggart wrote:

> $ hppa-linux-objdump -h fs.o
>[snip]
>  10 .text         00000008  00000000  00000000  00013420  2**2
>                   CONTENTS, ALLOC, LOAD, READONLY, CODE
>  11 .init.text    00001b3c  00000000  00000000  00013428  2**2
>                   CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
>  12 .text.1       00005f48  00000000  00000000  00014f64  2**2
>                   CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
>  13 .text.2       00003078  00000000  00000000  0001aeac  2**2
>[snip]

Looks good to me, what I'd expect to see with the new binutils and a
compile without -ffunction-sections.  I'll see if I can reproduce it -
it's probably a bug in the latest binutils .

-- 
Linuxcare.  Support for the Revolution.



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hi

Here is the boot.log

Booting
palo ipl bame@noam Tue Oct 31 14:18:02 MST 2000
0/vmlinux 2140145 bytes @ 0x8090800
0/palo-cmdline '3/boot/vmlinux TERM=linux HOME=/ root=/dev/sda3'
/dev/ida1  82         59     262727
/dev/ida2  f0     262786      33099
/dev/ida3  83     295885     727175
Kernel: partition 3 file /boot/vmlinux
ext2 block size 1024
ext2_mount(partition 3) returns 0
ext2_open(/boot/vmlinux) = 3
ELF32 executable

Entry 00100150 first 00100000 n 4
Segment 0 load 00100000 size 1460344 mediaptr 0x1000
Segment 1 load 00266000 size 179048 mediaptr 0x166000
Segment 2 load 00294000 size 109876 mediaptr 0x192000
Segment 3 load 002b0000 size 8192 mediaptr 0x1ad000
branching to kernel entry point 0x00100150
Set default PSW W bit to 0
PDC Console Initialized
The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02da000
(0x504d6c,0x504d6c,0x0,0x0)
PALO command line: 'TERM=linux HOME=/ root=/dev/sda3'
PALO initrd 0-0
model   00006000 00000481 00000000 00000000 77c6fa78 00000000 00000004
00000072
00000072
vers    0000000c
CPUID vers 0 rev 0
Searching for devices in PDC firmware... processor hpa 0xfffbe000
 an older box...
Found devices:
1. Gecko GSC Core Graphics (10) at 0xf8000000, versions 0x16, 0x0, 0x85,
0x0, 0x
0
2. Gecko Core BA (11) at 0xf0100000, versions 0x16, 0x0, 0x81, 0x0, 0x0
3. Gecko Core SCSI (10) at 0xf0106000, versions 0x16, 0x0, 0x82, 0x0, 0x0
4. Gecko Core Lan (802.3) (10) at 0xf0107000, versions 0x16, 0x0, 0x8a, 0x0,
0x0

5. Gecko Core RS-232 (10) at 0xf0105000, versions 0x16, 0x0, 0x8c, 0x0, 0x0
6. Gecko Core Centronics (10) at 0xf0102000, versions 0x16, 0x0, 0x74, 0x0,
0x0
7. Gecko Audio (10) at 0xf0104000, versions 0x16, 0x0, 0x7b, 0x0, 0x0
8. Gecko Core PC Floppy (10) at 0xf010a000, versions 0x16, 0x0, 0x83, 0x0,
0x0
9. Gecko Core PC Keyboard (10) at 0xf0108000, versions 0x16, 0x0, 0x84, 0x0,
0x0

10. Gecko Core PC Keyboard (10) at 0xf0108100, versions 0x16, 0x0, 0x84,
0x0, 0x
0
11. Gecko (712/60) (0) at 0xfffbe000, versions 0x600, 0x0, 0x4, 0x0, 0x81
12. Gecko (1) at 0xfffbf000, versions 0x26, 0x0, 0x9, 0x0, 0x0
That's a total of 12 devices.
CPU(s): 1 x PA7100LC (PCX-L) at 60.000000 MHz
Linux version 2.4.0-test6 (pjlahaie@elenuial.thepuffingroup.com) (gcc
version 2.
96 20000925 (experimental)) #32 Mon Nov 6 10:20:58 EST 2000
free_bootmem(0x2da800, 0x3d25800)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 16384
zone(0): 8192 pages.
zone(1): 8192 pages.
zone(2): 0 pages.
Kernel command line: TERM=linux HOME=/ root=/dev/sda3
trap_init
Calibrating delay loop... 59.80 BogoMIPS
Memory: 61388k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xf0100000 found.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
Found i82596 at 0xf0107000, IRQ 87
early initialization of device eth0 is deferred
Initializing Lasi PS/2-keyboard port at 0xf0108000...
Support for Lasi PS/2-psaux not yet available !
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 4096)
Starting kswapd v1.7
pty: 256 Unix98 ptys configured
Lasi PS/2 wait 1579
Lasi PS/2 wait 1580
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
sim700: Configuring 53c710 (SCSI-ID 7) at f0106100, IRQ 86
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: Good, target data areas are dma coherent
scsi0: test 1 completed ok.
scsi0: sim700_intr_handle() called with no interrupt
scsi0 : LASI/Simple 53c7xx
scsi : 1 host.
  Vendor: TOSHIBA   Model: CD-ROM XM-5701TA  Rev: 1557
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 5, lun 0
  Vendor: QUANTUM   Model: LPS525S           Rev: 3110
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 6, lun 0
scsi : detected 1 SCSI cdrom 1 SCSI disk total.
Uniform CD-ROM driver Revision: 3.11
SCSI device sda: hdwr sector= 512 bytes. Sectors= 1023484 [499 MB] [0.5 GB]
Partition check:
 sda: sda1 sda2 sda3
eth0: 82596 at 0xf0107000, 08 00 09 87 66 19 IRQ 87.
82596.c $Revision: 1.14 $
Serial driver version 5.01 (2000-05-29) with MANY_PORTS SHARE_IRQ SERIAL_PCI
ena
bled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
Switching from PDC console
kmem_create: Forcing size word alignment - nfs_fh
VFS: Mounted root (ext2 filesystem) readonly.
BUG IN DYNAMIC LKernel panic: Attempted to kill init!
INKER ld.so: dynamic-link.h: 62: top level: Assertion `! "bad dynamic tag"'
fail
ed!

br

marko

> -----Original Message-----
> From: EXT Alex deVries [mailto:adevries@linuxcare.com]
> Sent: 12 December, 2000 6:46
> To: Marko.T.Niskanen@nokia.com; 	
> Subject: Re: [parisc-linux] 712/60 booting problem
> 
> 
> Alex deVries wrote:
> > 
> > Marko.T.Niskanen@nokia.com wrote:
> > >
> > > hello
> > >
> > > after installing from palinux-0.5.iso.gz on cd and during 
> booting I can get
> > > this kind error
> > 
> > Okay.  You've got to give us some sort of clue as to what kind of
> > machine that is, because I can't guess.
> 
> What a silly question, since you mentioned it in your subject it was a
> 712/80.
> 
> Where do you get the problem?  Do you have a bootlog for us?
> 
> - Alex
> 
> 
> -- 
> Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
> 613.562.2759 tel
> alex@linuxcare.com, http://www.linuxcare.com/
> Linuxcare, Support for the revolution.
> 


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linux/arch/parisc/vmlinux.lds is the culprit.  Or at least, the line

	OUTPUT_FORMAT("elf32-hppa")

along with a new linker that produces elf32-hppa-linux output format.
I'm committing a fix to pehc.

-- 
Linuxcare.  Support for the Revolution.


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>   What code are you proposing to add to the bootloader? ext2 support is
>   underway.

If it works, I propose to let it unchanged (of course, e2fs would be nice).
I concentrate on the kernel for now (and think we might get interrupt(ion)s
RSN).


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 712/60 booting problem
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Marko.T.Niskanen@nokia.com wrote:
> kernel BUG at pci-dma.c:400!
> kernel BUG at pci-dma.c:391!
> kernel BUG at pci-dma.c:400!
> kernel BUG at pci-dma.c:391!
> kernel BUG at pci-dma.c:400!
> ISO 9660 Extensions: RRIP_1991A
> VFS: Mounted root (iso9660 filesystem) readonly.

Those are actually messages that are perfectly normal.

I wonder if Marko's problems are specific to the 712/60, does anyone
else with a 712/60 have such kernel panics?  I don't on my 712/80.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Robin Theander <Robin.Theander@tellabs.com>
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Subject: Re: [parisc-linux] 712/60 booting problem
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> Marko.T.Niskanen@nokia.com wrote:
> > kernel BUG at pci-dma.c:400!
> > kernel BUG at pci-dma.c:391!
> > kernel BUG at pci-dma.c:400!
> > kernel BUG at pci-dma.c:391!
> > kernel BUG at pci-dma.c:400!
> > ISO 9660 Extensions: RRIP_1991A
> > VFS: Mounted root (iso9660 filesystem) readonly.
> Those are actually messages that are perfectly normal.
> I wonder if Marko's problems are specific to the 712/60, does anyone
> else with a 712/60 have such kernel panics? I don't on my 712/80.

I have a 712/60 and I see the same. The box works quite well.
The same messages also appear when mounting/unmounting filesystems.

Robin.

-- 
ASIC Design Engineer
Tellabs Denmark A/S

Direct: +45 4473 2942
robin.theander@tellabs.com


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Same on a 715/64 here.

(ASIC-Designers love their HPs, eh?)


Regards,

Matthias

Robin Theander wrote:
> 
> > Marko.T.Niskanen@nokia.com wrote:
> > > kernel BUG at pci-dma.c:400!
> > > kernel BUG at pci-dma.c:391!
> > > kernel BUG at pci-dma.c:400!
> > > kernel BUG at pci-dma.c:391!
> > > kernel BUG at pci-dma.c:400!
> > > ISO 9660 Extensions: RRIP_1991A
> > > VFS: Mounted root (iso9660 filesystem) readonly.
> > Those are actually messages that are perfectly normal.
> > I wonder if Marko's problems are specific to the 712/60, does anyone
> > else with a 712/60 have such kernel panics? I don't on my 712/80.
> 
> I have a 712/60 and I see the same. The box works quite well.
> The same messages also appear when mounting/unmounting filesystems.
> 
> Robin.
> 
> --
> ASIC Design Engineer
> Tellabs Denmark A/S
> 
> Direct: +45 4473 2942
> robin.theander@tellabs.com
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

--
Matthias Wientapper                   We're all pretty geeky people....
AtosOrigin ASIC CENTRE                I think you'll find that your      
Billstrasse 80, D-20536 Hamburg       average rock star is a dork.      
Phone: +49-(0)40-7886-699 Fax: -691   - Adam Duritz of Counting Crows


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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] STI Rom address location
Date: Wed, 13 Dec 2000 05:31:11 -0700 (MST)
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> Hi Matt, and Hi STI god ;-)

Matt forwarded this to me, although I am not the "STI god" that he
mentioned. However, I do know the answer to the problem you are having,
since at one time I worked on the graphics driver for HP-UX. I am
sending this to parisc-linux also, since I believe the answer is probably
of interest to others, and it may be worthwhile discussing the appropriate
solution to finding the STI rom in this case.

> i can't find the sti rom on my B132/B180
>
> well, unlike the 712,715 and 725, the address is not in the pdc.
> I tested it: PAGE0->0x604 == NULL
>
> for sgc and gsc based graphic cards, the sti rom has to be available at
> the base hpa, which can be one of those addresses: 0xf4000000,
> 0xf6000000, 0xf8000000, or 0xfa000000.
>

With one exception, the sti rom for non PCI graphics cards can be found at
the base hpa (note that for HP PCI graphics cards, the sti rom can be
found in the extension rom).  The one exception is for "Artist" graphics
hardware.  Artist graphic hardware has a sversion of 0x85, and can be
found in a quite a few machines that were made in the Gecko -> B180
timeframe (you can look them up in the hardware database in hardware.c).

Artist graphics hardware was a low cost graphics solution, and the hardware
folks decided not to have a separate rom for sti. Instead, the sti code
was placed into the system's pdc firmware. On the first machines to have
Artist hardware, e.g. Gecko, the address of the sti "rom" was stored at
location 0x604 on the zero page. This was considered a hack, and another
architected solution was designed. Newer machines implement the
PDC_SYSTEM_MAP pdc call. In most cases, each fixed module has one
entry in the system map, however this is not always the case. There is
provision for modules that have discontiguous address ranges. The first
system map entry will be for the hpa. If there are additional address
ranges the "add_addrs" field in "struct pdc_system_map" will be non-zero.
The "add_addrs" field will be non-zero for each entry except for the
last one, where the "add_addrs" field will be zero. For Artist graphics,
the first entry will contain the hpa in the mod_addr field. IF the
add_addrs field is non-zero, THEN the second entry (i.e. the result
from a call to PDC_SYSTEM_MAP with the next index value) will contain the
address of the sti rom in the mod_addr field.

Note that address 0x604 on page zero is not reserved specifically for the
Artist graphics sti rom address.  You should only check the contents at
0x604 if the above check fails, i.e. if PDC_SYSTEM_MAP is not implemented,
or the add_addrs field for the entry containing the hpa of the Artist
hardware is zero.

Here is some pseudo code for the proper algorithm for finding the sti-rom
for non PCI graphics cards:

    IF sversion != 0x85:
	Use base hpa
    ELSE:
	IF PDC_SYSTEM_MAP pdc call is implemented, and add_addrs field
	of entry containing hpa of artist graphics hardware is
	non zero:

	    Use mod_addr field from next index in system map.
	ELSE:
	    Use address stored at location 0x604 on page zero.

Anyway, our current implementation doesn't appear to handle multiple
entries for the same module in the system map, i.e. it calls
register_module for every entry, and just silently drops entries that
pdc_iodc_read doesn't acknowledge as a hardware device. So, some
rearchitecting should be done to correctly support this. For a quick
hack you can probably write your own loop calling pdc_system_map_find_mods
(see code in do_newer_workstation_inventory).

John Marvin
jsm@fc.hp.com


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From: Alex deVries <adevries@linuxcare.com>
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Subject: [parisc-linux] WAX, Harmony and SuperIO
Date: Wed, 13 Dec 2000 13:52:17 -0500
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Just an update on three device drivers I'm vaguely working on.

I'm actually up for working on other various drivers, and am taking
requests.  I do have quite a variety of hardware to test on.

1. Harmony, the sound driver

Definitely some problems here, most are already documented but one
notable one is that the sound chip on a 715/75 doesn't appear to be
Harmony at all.  Does anyone by chance know what this is?

2. WAX

First off, many many thanks to Mike Hibler for finding his WAX docs.  To
make a long story short, I will soon have access under NDA to the WAX
ERS and will have some Christmas time to hack on WAX.  Thanks go to Alan
Meyer for the internal work at HP as well.

3. SuperIO

I made an unsuccessful attempt to understand how SuperIO (the funky IO
controller in C3k and J5k) PCI interrupts work.  I'm inheriting a bunch
of code and info from Martin Petersen, and we all agree we need some
help from someone at HP (hi Grant!) to help us.  This'll probably have
to stay on the back burner until January 2001.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Xavier Debacker <debackex@esiee.fr>
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Subject: Re: [parisc-linux] STI Rom address location
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Hi, thanks for your help, but there are still some pbs...

> IF the
> add_addrs field is non-zero, THEN the second entry (i.e. the result
> from a call to PDC_SYSTEM_MAP with the next index value) will contain the
> address of the sti rom in the mod_addr field.
 
> For a quick
> hack you can probably write your own loop calling pdc_system_map_find_mods
> (see code in do_newer_workstation_inventory).

To get familiar with pdc_system_map_find_mods, I modified
do_newer_workstation_inventory (in inventory.c) like this:

printk("a newer box...\n");
for(i=0, status=PDC_RET_OK; status != PDC_RET_NE_PROC &&
                            status != PDC_RET_NE_MOD ;i++) {
	printk("--- %s: index is set to %i\n",__FUNCTION__,i);
        status =
pdc_system_map_find_mods(&module_result,&module_path,i);
        if (status == PDC_RET_OK) {
	        printk("--- %s: mod_addr is 0x%08x, add_addrs is 0x%08x \n",
                
__FUNCTION__,module_result.mod_addr,module_result.add_addrs);
                num++;
                register_module(module_result.mod_addr);
        }
        else printk("--- %s: status returned is not PDC_RET_OK\n");
}


This kernel runs on the B132, dmesg gives me this:

a newer box...
--- do_newer_workstation_inventory: index is set to 0
--- do_newer_workstation_inventory: mod_addr is 0xffc00000, add_addrs is
0x00000000 
[... useless info removed ...]
--- do_newer_workstation_inventory: index is set to 11
--- do_newer_workstation_inventory: mod_addr is 0xf8000000, add_addrs is
0x00000001 
--- do_newer_workstation_inventory: index is set to 12
--- do_newer_workstation_inventory: mod_addr is 0xfff80000, add_addrs is
0x00000001 
--- do_newer_workstation_inventory: index is set to 13
--- do_newer_workstation_inventory: status returned is not PDC_RET_OK
Found devices:
1. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0,
0x0, 0x0, 0x0
2. Merlin+ 132 Dino RS-232 (10) at 0xfff83000, versions 0x22, 0x0, 0x8c,
0x0, 0x0
3. Merlin L2+ 132 (9000/778/B132L) (0) at 0xfffbe000, versions 0x503,
0x0, 0x4, 0x0, 0x81
4. Merlin+ L2 132 (1) at 0xfffbf000, versions 0x61, 0x0, 0x9, 0x0, 0x0
5. Merlin+ 132 Core BA (11) at 0xffd00000, versions 0x3e, 0x0, 0x81,
0x0, 0x0
6. Merlin+ 132 Core RS-232 (10) at 0xffd05000, versions 0x3e, 0x0, 0x8c,
0x0, 0x0
7. Merlin+ 132 Core SCSI (10) at 0xffd06000, versions 0x3e, 0x0, 0x82,
0x0, 0x0
8. Merlin+ 132 Core Centronics (10) at 0xffd02000, versions 0x3e, 0x0,
0x74, 0x0, 0x0
9. Merlin+ 132 Core Audio (10) at 0xffd04000, versions 0x3e, 0x4, 0x7b,
0x0, 0x0
10. Merlin+ 132 Core PC Keyboard (10) at 0xffd08000, versions 0x3e, 0x0,
0x84, 0x0, 0x0
11. Merlin+ 132 Core PC Keyboard (10) at 0xffd08100, versions 0x3e, 0x0,
0x84, 0x0, 0x0
12. Gecko GSC Core Graphics (10) at 0xf8000000, versions 0x16, 0x0,
0x85, 0x0, 0x0
13. Dino PCI Bridge (13) at 0xfff80000, versions 0x680, 0x3, 0xa, 0x0,
0x0
That's a total of 13 devices.


As we can see, when mod_addr is 0xf8000000, the add_addrs is not zero,
that's fine with your explanation.
the problem is that when I increment index (i=12) I get a mod_addr that
points to the Dino PCI Bridge, and still not to the STI ROM. I had a
look at 0xfff80000, just to be sure, and it doesn't seem to be my rom
(the 8 first bytes are zeroes).

btw, all info I've found about PDC_SYSTEM_MAP was in pdc.pdf, just
telling about the existence of such a procedure in chapter 2.2, but
there's no more info about it (while ALL other procedures are explained
in this book). This is just to get explained about the
pdc_system_map_find_mods params.


Any idea?

Thanks for your help!
Xavier

ESIEE Team.


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Hi

I checked in one more fix for ld.so earlier today, with that and my
previous patches I am now able to rebuild glibc with shared libraries
natively.

I think there have been some ABI changes inbetween the current glibc
and the stuff that was distributed as .deb's earlier so there might be
compat changes.

However at least glibc seems to work now (I think).

Jes


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Hi,

I'm trying to build an new cross-compiler and have run into the following 
errors,

gcc -c -DHAVE_CONFIG_H -g -O2 -I. -I/home/al-76/puffin/palinux/gcc/libiberty/..
/include  -W -Wall -Wtraditional -pedantic /home/al-76/puffin/palinux/gcc/libib
erty/argv.c
In file included from /home/al-76/puffin/palinux/gcc/libiberty/argv.c:26:
/home/al-76/puffin/palinux/gcc/libiberty/../include/libiberty.h:22: parse error
before `ATTRIBUTE_MALLOC'
/home/al-76/puffin/palinux/gcc/libiberty/../include/libiberty.h:22: warning: 
type defaults to `int' in declaration of `ATTRIBUTE_MALLOC'
/home/al-76/puffin/palinux/gcc/libiberty/../include/libiberty.h:22: ANSI C 
forbids data definition with no type or storage class

it complains about lines 22, 31, 55, 72, 76, 143, 154, 158, 162 all lines with 
"ATTRIBUTE_MALLOC". It didn't do this when I last built on December 11th so I 
think it must be something checked in since then. I have looked at the stuff 
that was checked in and it's not clear to me what's causing it.

Anyone have an idea?

-- 
Matt Taggart
taggart@fc.hp.com



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On Wed, 13 Dec 2000, Matt Taggart wrote:

> Anyone have an idea?

I probably broke the CVS repo, when I ran "cvs admin -b" following your
updated recipe.  I do have a checked-out tree, to probably can put things
back as they were.

-- 
Linuxcare.  Support for the Revolution.


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Xref: news.gmane.org gmane.linux.ports.parisc:8880


Alan Modra writes...

> On Wed, 13 Dec 2000, Matt Taggart wrote:
> 
> > Anyone have an idea?
> 
> I probably broke the CVS repo, when I ran "cvs admin -b" following your
> updated recipe.  I do have a checked-out tree, to probably can put things
> back as they were.

Since admin -b reverts the default branch, wouldn't importing cygnus source 
fix things?

* taggart gets out the mang-signal

-- 
Matt Taggart
taggart@fc.hp.com



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From: Alex deVries <adevries@redhat.com>
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Subject: [parisc-linux] Some more docs.
Date: Sun, 9 May 1999 01:54:43 -0400 (EDT)
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With thanks to John Sontag and HP, there's now docs available on the
A180C.  In particular, what's interesting about this document is the
overview of the architecture which shows Lasi (the SCSI controller) and
Dino (the PCI and ethernet controllers).

John tells me he's working on more detailed docs.

Also, there's two older and larger docs available online which I've had
sitting around and simply forgot to post.  It shows the details of what's
in what box; it's the first two docs on the documentation download page.

For more details, look at
http://www.thepuffingroup.com/parisc/documentation.html

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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On Wed, 13 Dec 2000, Matt Taggart wrote:

> Alan Modra writes...
> 
> > I probably broke the CVS repo, when I ran "cvs admin -b" following your
> > updated recipe.  I do have a checked-out tree, to probably can put things
> > back as they were.
> 
> Since admin -b reverts the default branch, wouldn't importing cygnus source 
> fix things?

It looks like an import was done at some stage without merging stuff back
to the main trunk.  eg.

File: config.if         Status: Needs Patch

   Working revision:    1.1.1.2
   Repository revision: 1.1     /home/cvs/parisc/gcc/config.if,v
   Sticky Tag:          (none)
   Sticky Date:         (none)
   Sticky Options:      (none)

   Existing Tags:
        before20000925merge             (revision: 1.1.1.2)
        before20000822merge             (revision: 1.1.1.2)
        gcc-2_96-gnu-20000707           (revision: 1.1.1.2)
        GNU_DIST                        (branch: 1.1.1)
        gcc-2_9-hppa-20000707           (branch: 1.1.1.1.4)
        pre_fest                        (revision: 1.1.1.1)
        ELF_BRANCH                      (branch: 1.1.1.1.2)
        ELF_BASE                        (revision: 1.1.1.1)
        initial_checkin                 (revision: 1.1.1.1)
        gcc-2_9-hppa-991112             (branch: 1.1.1)

What I've got to do, I guess, is to commit my tree back to the main truck.
eg. in the case of config.if, we want a version 1.2 which will be identcal
to version 1.1.1.2

-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: pa reload problem
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> I was going to deleting the hack and adding a general_operand test in
> local-alloc to see if that would fix the reload problem with "-fPIC".
> However, for the moment, there are still problems with a "normal" build
> at "-O3".  With only the yesterdays CVS source and the patch below
> to prevent rename registers walking of the return pointer, I get the
> following failure building libstdc++ v2:
> 
> /xxx/gnu/gcc-2.97/objdir/gcc/g++ -B/xxx/gnu/gcc-2.97/objdir/gcc/ -nostdinc++ -isystem /xxx/gnu/gcc-2.97/libstdc++ -isystem /xxx/gnu/gcc-2.97/libstdc++/std -isystem /xxx/gnu/gcc-2.97/libstdc++/stl -isystem /xxx/gnu/gcc-2.97/libio -isystem /xxx/gnu/gcc-2.97/objdir/hppa1.1-hp-hpux10.20/libio -L/xxx/gnu/gcc-2.97/objdir/hppa1.1-hp-hpux10.20/libstdc++ -B/usr/local/hppa1.1-hp-hpux10.20/bin/ -B/usr/local/hppa1.1-hp-hpux10.20/lib/ -isystem /usr/local/hppa1.1-hp-hpux10.20/include -c -O3 -fno-implicit-templates -I../../../libstdc++ -I../../../libstdc++/stl -I../libio -I../../../libstdc++/../libio -I../../../libstdc++/../include -I../../../libstdc++/../gcc -nostdinc++  ../../../libstdc++/exception.cc
> ../../../libstdc++/exception.cc: In function `void __check_eh_spec(int, const 
>    void**)':
> ../../../libstdc++/exception.cc:363: Internal error: Segmentation fault.

I have made some progress in locating this bug but still don't have a
complete understanding of the problem.  The problem is that a code_label
insn is "incorrectly" deleted in the loop pass.  Here is the rtl from
the gcse pass:

[snip]

(code_label 1158 1268 1439 124 "" "" [3 uses])

(note 1439 1158 262 [bb 12] NOTE_INSN_BASIC_BLOCK -1347440721)

(note 262 1439 1159 85 NOTE_INSN_EH_REGION_END -1347440721)

[snip]

(insn 788 787 789 (set (reg/f:SI 209)
        (high:SI (label_ref:SI 1158))) 87 {*pa.md:2435} (nil)
    (expr_list:REG_EQUAL (high:SI (label_ref:SI 1158))
        (insn_list:REG_LABEL 1158 (nil))))

(insn 789 788 791 (set (reg/f:SI 208)
        (lo_sum:SI (reg/f:SI 209)
            (label_ref:SI 1158))) 90 {*pa.md:2467} (nil)
    (insn_list:REG_LABEL 1158 (expr_list:REG_EQUAL (label_ref:SI 1158)
            (nil))))

Here is the rtl after loop:

Loop from 576 to 1288: 105 real insns.
Continue at insn 1278.

[snip]

Insn 788: regno 209 (life 2), move-insn savings 2  moved to 1530
Insn 789: regno 208 (life 1), move-insn forces 788 savings 1  moved to 1532

[snip]

(insn 1531 1528 1532 (set (reg/f:SI 337)
        (high:SI (label_ref:SI 1158))) -1 (nil)
    (expr_list:REG_LABEL (code_label/v 1158 1268 1439 124 "" "" [0 uses])
        (nil)))

(insn 1532 1531 1535 (set (reg/f:SI 208)
        (lo_sum:SI (reg/f:SI 337)
            (label_ref:SI 1158))) -1 (nil)
    (expr_list:REG_EQUAL (label_ref:SI 1158)
        (expr_list:REG_LABEL (code_label/v 1158 1268 1439 124 "" "" [0 uses])
            (nil))))

The code_label 1158 is deleted by delete_trivially_dead_insns apparently 
because the preceding call to loop_optimize in toplev.c has reduced the
number of uses to 1.  Maybe somebody can see how this occurs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Thu, 14 Dec 2000, Alan Modra wrote:

> What I've got to do, I guess, is to commit my tree back to the main truck.
> eg. in the case of config.if, we want a version 1.2 which will be identcal
> to version 1.1.1.2

Seemed to work OK.  A "cvs update -d" in your gcc directory should now
fix your tree for you.

-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: pa reload problem
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  In message <200012140048.TAA02603@hiauly1.hia.nrc.ca>you write:
  > I have made some progress in locating this bug but still don't have a
  > complete understanding of the problem.  The problem is that a code_label
  > insn is "incorrectly" deleted in the loop pass.  Here is the rtl from
  > the gcse pass:
  > 
  > [snip]
  > 
  > (code_label 1158 1268 1439 124 "" "" [3 uses])
  > 
  > (note 1439 1158 262 [bb 12] NOTE_INSN_BASIC_BLOCK -1347440721)
  > 
  > (note 262 1439 1159 85 NOTE_INSN_EH_REGION_END -1347440721)
  > 
  > [snip]
  > 
  > (insn 788 787 789 (set (reg/f:SI 209)
  >         (high:SI (label_ref:SI 1158))) 87 {*pa.md:2435} (nil)
  >     (expr_list:REG_EQUAL (high:SI (label_ref:SI 1158))
  >         (insn_list:REG_LABEL 1158 (nil))))
  > 
  > (insn 789 788 791 (set (reg/f:SI 208)
  >         (lo_sum:SI (reg/f:SI 209)
  >             (label_ref:SI 1158))) 90 {*pa.md:2467} (nil)
  >     (insn_list:REG_LABEL 1158 (expr_list:REG_EQUAL (label_ref:SI 1158)
  >             (nil))))
  > 
  > Here is the rtl after loop:
  > 
  > Loop from 576 to 1288: 105 real insns.
  > Continue at insn 1278.
  > 
  > [snip]
  > 
  > Insn 788: regno 209 (life 2), move-insn savings 2  moved to 1530
  > Insn 789: regno 208 (life 1), move-insn forces 788 savings 1  moved to 1532
  > 
  > [snip]
  > 
  > (insn 1531 1528 1532 (set (reg/f:SI 337)
  >         (high:SI (label_ref:SI 1158))) -1 (nil)
  >     (expr_list:REG_LABEL (code_label/v 1158 1268 1439 124 "" "" [0 uses])
  >         (nil)))
  > 
  > (insn 1532 1531 1535 (set (reg/f:SI 208)
  >         (lo_sum:SI (reg/f:SI 337)
  >             (label_ref:SI 1158))) -1 (nil)
  >     (expr_list:REG_EQUAL (label_ref:SI 1158)
  >         (expr_list:REG_LABEL (code_label/v 1158 1268 1439 124 "" "" [0 uses
  > ])
  >             (nil))))
  > 
  > The code_label 1158 is deleted by delete_trivially_dead_insns apparently 
  > because the preceding call to loop_optimize in toplev.c has reduced the
  > number of uses to 1.  Maybe somebody can see how this occurs.
Seems to me we have a reference counting problem.  There is clearly 
a reference to label 1158 (insn 1531/1532), but it's reference count
is zero.

Seems to me that if you find that reference counting bug that you'll
fix this problem.

jeff


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Subject: Re: [parisc-linux] phase 2 gcc build fails
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Yeah, that's exactly what you wanted to do.  After you ran the "admin
-b" command, the vendor branch was de-vendorised, so I'm guessing that
the next time you pulled you got the trunk, not the branch.  With vendor
branches, you never really know if you're pulling from a branch or the
trunk, hence our desire to avoid them.

	- Mike.

Alan Modra wrote:
> 
> On Thu, 14 Dec 2000, Alan Modra wrote:
> 
> > What I've got to do, I guess, is to commit my tree back to the main truck.
> > eg. in the case of config.if, we want a version 1.2 which will be identcal
> > to version 1.1.1.2
> 
> Seemed to work OK.  A "cvs update -d" in your gcc directory should now
> fix your tree for you.


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On Thu, 14 Dec 2000, Michael Ang wrote:

> Yeah, that's exactly what you wanted to do.  After you ran the "admin
> -b" command, the vendor branch was de-vendorised, so I'm guessing that
> the next time you pulled you got the trunk, not the branch.  With vendor
> branches, you never really know if you're pulling from a branch or the
> trunk, hence our desire to avoid them.

For answering, you're the lucky recipient of another question :-)

Is it possible to import a vendor branch that contains new files, without
them magically appearing when checking out the HEAD version?  I've just
done an import from sourceware, then had to rm all the new files, cvs rm,
cvs commit.  Which is a pain.  Also, unless people use "checkout -P", they
get empty directories.

Regards, Alan
-- 
Linuxcare.  Support for the Revolution.


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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] STI Rom address location
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Xavier,

> Hi, thanks for your help, but there are still some pbs...
>
> > IF the
> > add_addrs field is non-zero, THEN the second entry (i.e. the result
> > from a call to PDC_SYSTEM_MAP with the next index value) will contain the
> > address of the sti rom in the mod_addr field.
>

OK, I blew it.  I don't memorize this stuff.  I looked at the HP-UX code
to get this information, but I didn't go deep enough and misread the code.
There is a different call to PDC_SYSTEM_MAP for getting additional ranges.

Rather than trying to write up the explanation for how the
PDC_FIND_ADDRESS argument to PDC_SYSTEM_MAP works, I just decided to add
some support for the call and some debug code to the kernel to show how it
is used (the debug code is inside an #if 0 in inventory.c).  Basically,
the add_addrs field tells you how many additional address ranges there
are, and you need to call PDC_SYSTEM_MAP/PDC_FIND_ADDRESS to get them.
Note that calling PDC_FIND_ADDRESS with an address index of 0 just returns
the first address range that you got from the PDC_FIND_MODULE, so it is
redundant (i.e. you should make the first call with an address index of
1, which is what the debug code does).

You'll probably want to save the information returned from
PDC_FIND_ADDRESS for later.  Note that the register_module() call returns
a pointer to the associated hp_device structure, however we are ignoring
the return in the call in inventory.c.  If you save the return value,
perhaps the hp_device structure should be modified to hold the additional
ranges (or at least just the one additional range for the STI special
case).

...

> btw, all info I've found about PDC_SYSTEM_MAP was in pdc.pdf, just
> telling about the existence of such a procedure in chapter 2.2, but
> there's no more info about it (while ALL other procedures are explained
> in this book). This is just to get explained about the
> pdc_system_map_find_mods params.

I don't have any documentation for PDC_SYSTEM_MAP either. I just used
the HP-UX source for reference.

John Marvin
jsm@fc.hp.com


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Subject: Re: [parisc-linux] phase 2 gcc build fails
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On Thu, Dec 14, 2000 at 05:55:54PM +1100, Alan Modra wrote:
> Is it possible to import a vendor branch that contains new files, without
> them magically appearing when checking out the HEAD version?  I've just
> done an import from sourceware, then had to rm all the new files, cvs rm,
> cvs commit.  Which is a pain.  Also, unless people use "checkout -P", they
> get empty directories.

this isn't an answer to your question, but...

cvs rm -f file both rm's it and removes it from the repository (obviously,
you need to cvs ci afterwards).
the cvsrc we distribute in the build-tools repository has -P for cvs up.

unfortunately, cvs doesn't seem to take the `-f' option from the .cvsrc
for the rm command.

-- 
Revolutions do not require corporate support.


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From: Robin Theander <Robin.Theander@tellabs.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 712/60 booting problem
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Well not really a boot problem but a few related questions.
If I do a
boot scsi.6.0 isl
palo displays the "options" menu and asks for some action (number or
'b').
At this point the box is dead - no response from keyboard or serial.
Is this supposed to work on this HW?

Can I control the console output (serial or STI/PDC) with a console=...
parameter in the boot string. This is the CDROM 0.5 stock kernel+palo
installed on a HD.
Can I change the /dev/console device numbers to do the same?
Before I get too far.. Is the STI mode working at all on a 712/60? The
docs and reports are a bit vague on this.

TIA.

Regards,

Robin.


Matthias.Wientapper@de.origin-it.com wrote:
> (ASIC-Designers love their HPs, eh?)

Well, we are doing all the ASIC work on Suns - and I'm edging PC's with
Linux in where I can. My 712/60 is an old decommissioned dns server.
Getting rid of H-PUX makes it a great toy - thanks guys.

-- 
ASIC Design Engineer
Tellabs Denmark A/S

Direct: +45 4473 2942
robin.theander@tellabs.com


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>   In message <200012140048.TAA02603@hiauly1.hia.nrc.ca>you write:
>   > I have made some progress in locating this bug but still don't have a
>   > complete understanding of the problem.  The problem is that a code_label
>   > insn is "incorrectly" deleted in the loop pass.  Here is the rtl from
>   > the gcse pass:
>   > 
>   > [snip]
>   > 
>   > (code_label 1158 1268 1439 124 "" "" [3 uses])
>   > 
>   > (note 1439 1158 262 [bb 12] NOTE_INSN_BASIC_BLOCK -1347440721)
>   > 
>   > (note 262 1439 1159 85 NOTE_INSN_EH_REGION_END -1347440721)
>   > 
>   > [snip]
>   > 
>   > (insn 788 787 789 (set (reg/f:SI 209)
>   >         (high:SI (label_ref:SI 1158))) 87 {*pa.md:2435} (nil)
>   >     (expr_list:REG_EQUAL (high:SI (label_ref:SI 1158))
>   >         (insn_list:REG_LABEL 1158 (nil))))
>   > 
>   > (insn 789 788 791 (set (reg/f:SI 208)
>   >         (lo_sum:SI (reg/f:SI 209)
>   >             (label_ref:SI 1158))) 90 {*pa.md:2467} (nil)
>   >     (insn_list:REG_LABEL 1158 (expr_list:REG_EQUAL (label_ref:SI 1158)
>   >             (nil))))
>   > 
>   > Here is the rtl after loop:
>   > 
>   > Loop from 576 to 1288: 105 real insns.
>   > Continue at insn 1278.
>   > 
>   > [snip]
>   > 
>   > Insn 788: regno 209 (life 2), move-insn savings 2  moved to 1530
>   > Insn 789: regno 208 (life 1), move-insn forces 788 savings 1  moved to 1532
>   > 
>   > [snip]
>   > 
>   > (insn 1531 1528 1532 (set (reg/f:SI 337)
>   >         (high:SI (label_ref:SI 1158))) -1 (nil)
>   >     (expr_list:REG_LABEL (code_label/v 1158 1268 1439 124 "" "" [0 uses])
>   >         (nil)))
>   > 
>   > (insn 1532 1531 1535 (set (reg/f:SI 208)
>   >         (lo_sum:SI (reg/f:SI 337)
>   >             (label_ref:SI 1158))) -1 (nil)
>   >     (expr_list:REG_EQUAL (label_ref:SI 1158)
>   >         (expr_list:REG_LABEL (code_label/v 1158 1268 1439 124 "" "" [0 uses
>   > ])
>   >             (nil))))
>   > 
>   > The code_label 1158 is deleted by delete_trivially_dead_insns apparently 
>   > because the preceding call to loop_optimize in toplev.c has reduced the
>   > number of uses to 1.  Maybe somebody can see how this occurs.
> Seems to me we have a reference counting problem.  There is clearly 
> a reference to label 1158 (insn 1531/1532), but it's reference count
> is zero.

That's what I thought.  It would appear to occur when the above two insns
get moved out of a loop.  The count gets decremented when the old insns
are deleted but not incremented when the new insns are created.  The puzzle
is why the count is zero rather than 1.  Maybe what happens is the two
insns in the loop are deleted first, then the label is deleted?  Notice
that insn 788 is moved to insn 1530.  However, the insn becomes 1531 and
the reg changes to 337 from 208.

I will try to step through the code later.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: "Martin K. Petersen" <mkp@mkp.net>
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Subject: [parisc-linux] A180 Ignition Howto
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Alex asked me to post this...

My A180 arrived a couple of days ago.

Just like any other HP box there are loads of HP-UX docs but no
information on the hardware at all. Grrr. HP. When will you ever
learn?

The A180 has a builtin webconsole. On the back of the system unit
there are two RJ45 connectors. One of them is regular ethernet
(DEC2114x btw. Should be piece of cake to get running) and the other
is for the webconsole.

According to the docs on HP's website the system should autodetect
whether to use serial port or web as console. I was unable to get my
HP 70096 serial console running, though. Then I discovered a jumper on
the motherboard which could allegedly force it in either mode. I tried
moving it to serial with no avail.

Oh, well. Bugger. Then I decided to try out the webconsole. The
interface defaults to 192.0.0.192. Clickety-clik. *Blam* the Java
stuff in the webconsole nuked my Netscape. Grumble.

Ok. Then I tried connecting from a Windows-box. Much better. The web
interface appeared in the browser and I was able to configure IP and
access control for the web console.

I rebooted the web console and presto: I could configure HP-UX and
regular networking.

Phew.

I'm a bit annoyed about the serial console stuff. I'll try hooking up
a different terminal tomorrow.

-- 
Martin Kasper Petersen			BOFH, IC1&2, Aalborg University, DK
mailto:mkp@SunSITE.auc.dk		http://SunSITE.auc.dk/~mkp/


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To: Alan Modra <alan@linuxcare.com.au>
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Alan Modra wrote:
> 
> > Yeah, that's exactly what you wanted to do.  After you ran the "admin
> > -b" command, the vendor branch was de-vendorised, so I'm guessing that
> > the next time you pulled you got the trunk, not the branch.  With vendor
> > branches, you never really know if you're pulling from a branch or the
> > trunk, hence our desire to avoid them.
> 
> For answering, you're the lucky recipient of another question :-)

Heh, serves me right ;)
 
> Is it possible to import a vendor branch that contains new files, without
> them magically appearing when checking out the HEAD version?  I've just
> done an import from sourceware, then had to rm all the new files, cvs rm,
> cvs commit.  Which is a pain.  Also, unless people use "checkout -P", they
> get empty directories.

Hmm, I didn't realise that this was another side effect of "import".  I
generally use "add" on the branch instead, which does the right thing
for new files.  So I guess when updating a third-party branch you have
two choices:
1. Use "import", and both "admin -b" and "cvs rm" from the trunk any new
files.
2. Use "add" on the branch, and "cvs rm" any removed files from the
branch.

New files on the trunk that shouldn't be there are probably less of a
nuisance than persistent files that should be gone, but there's no need
to make this kind of mistake.

If people want to prune empty directories they should use "checkout
-P".  Here's the contents of my .cvsrc:
cvs -z3
diff -uN
remove -f

I don't turn on "checkout -P" or "update -d" by default, but that's just
me.  I've been meaning to set up a checkout module for the kernel that
would include the minimal set of stuff you need to build for PA-RISC,
omitting the other arch dependent junk.  I plan to do it Real Soon Now.

	- Mike.


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I implied this in my previous message, but you want to put "remove -f"
in you .cvsrc.  Of course, forgetting there's even a long form at all is
a sign of strength, not weakness. :)

	- Mike.

Matthew Wilcox wrote:
> 
> unfortunately, cvs doesn't seem to take the `-f' option from the .cvsrc
> for the rm command.


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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: [parisc-linux] ldcw in __pthread_acquire
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I just ran into an unaligned data reference in user land.  The problem is
that the routine __pthread_acquire (in libpthread) does a ldcw, but it is
not ensuring that the address it is operating on is 16 byte aligned (it is
operating on the address that was passed in as the first argument).  Some
processors don't require the 16 byte alignment, but many do.

I haven't looked at the source (I just found the location by disassembly),
so I don't know what the root cause is.  The actual ldcw is probably from
an inlined function or macro, e.g. spin_lock().  My first guess would be
that it is using the machine dependent spin_lock macro, but the procedure
which called __pthread_acquire is passing in a structure whose lock field
does not have the aligned(16) attribute.

I don't have time to look at this right now.  Any volunteers?

John Marvin
jsm@fc.hp.com


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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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I just realized that I forgot to mention that __pthread_acquire was called by
__pthread_alt_lock, and that it is passing a pointer that has a 4 byte offset
from whatever was passed as the first argument to __pthread_alt_lock.

John


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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On Fri, 15 Dec 2000, John Marvin wrote:

> 
> I just ran into an unaligned data reference in user land.  The problem is
> that the routine __pthread_acquire (in libpthread) does a ldcw, but it is
> not ensuring that the address it is operating on is 16 byte aligned (it is
> operating on the address that was passed in as the first argument).  Some
> processors don't require the 16 byte alignment, but many do.
> 
> I haven't looked at the source (I just found the location by disassembly),
> so I don't know what the root cause is.  The actual ldcw is probably from
> an inlined function or macro, e.g. spin_lock().  My first guess would be
> that it is using the machine dependent spin_lock macro, but the procedure
> which called __pthread_acquire is passing in a structure whose lock field
> does not have the aligned(16) attribute.
> 
> I don't have time to look at this right now.  Any volunteers?

This isn't exactly volunteering, but I've looked at this code before.
Here's where the problem is:

glibc/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h

struct _pthread_fastlock
{
  long int __status;   /* "Free" or "taken" or head of waiting list */
  int __spinlock;      /* Used by compare_and_swap emulation. Also,
			  adaptive SMP lock stores spin count here. */
};

--
Linuxcare.  Support for the Revolution.


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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On Fri, Dec 15, 2000 at 10:37:55PM +1100, Alan Modra wrote:
> On Fri, 15 Dec 2000, John Marvin wrote:
> 
> > 
> > I just ran into an unaligned data reference in user land.  The problem is
> > that the routine __pthread_acquire (in libpthread) does a ldcw, but it is
> > not ensuring that the address it is operating on is 16 byte aligned (it is
> > operating on the address that was passed in as the first argument).  Some
> > processors don't require the 16 byte alignment, but many do.

> Here's where the problem is:
> 
> glibc/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h
> 
> struct _pthread_fastlock
> {
>   long int __status;   /* "Free" or "taken" or head of waiting list */
>   int __spinlock;      /* Used by compare_and_swap emulation. Also,
> 			  adaptive SMP lock stores spin count here. */
> };

Can we move the __spinlock to be the first element of the struct,
and then mark the struct as requiring 16-byte alignment?  i have the
feeling this might `just work', since most structs will be allocated at
16-byte-aligned addresses anyway.

-- 
Revolutions do not require corporate support.


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From: Jes Sorensen <jes@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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>>>>> "Matthew" == Matthew Wilcox <matthew@wil.cx> writes:

Matthew> Can we move the __spinlock to be the first element of the
Matthew> struct, and then mark the struct as requiring 16-byte
Matthew> alignment?  i have the feeling this might `just work', since
Matthew> most structs will be allocated at 16-byte-aligned addresses
Matthew> anyway.

We probably cannot, we can however create our own version of the
header file for the parisc port.

Jes
(yuck yuck, I just hate linuxthreads)


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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On Fri, Dec 15, 2000 at 06:32:12PM +0100, Jes Sorensen wrote:
> >>>>> "Matthew" == Matthew Wilcox <matthew@wil.cx> writes:
> 
> Matthew> Can we move the __spinlock to be the first element of the
> Matthew> struct, and then mark the struct as requiring 16-byte
> Matthew> alignment?  i have the feeling this might `just work', since
> Matthew> most structs will be allocated at 16-byte-aligned addresses
> Matthew> anyway.
> 
> We probably cannot, we can however create our own version of the
> header file for the parisc port.

That was what I meant.  the question is, would it _work_?  Or is this
struct embedded in other structs at non-16byte-aligned positions?

-- 
Revolutions do not require corporate support.


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: [parisc-linux] PATCH: Adjust label usage count for new insns [was Re: pa reload problem]
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Xref: news.gmane.org gmane.linux.ports.parisc:8901

>   > Here is the rtl after loop:

>   > (insn 1531 1528 1532 (set (reg/f:SI 337)
>   >         (high:SI (label_ref:SI 1158))) -1 (nil)
>   >     (expr_list:REG_LABEL (code_label/v 1158 1268 1439 124 "" "" [0 uses])
>   >         (nil)))
>   > 
>   > (insn 1532 1531 1535 (set (reg/f:SI 208)
>   >         (lo_sum:SI (reg/f:SI 337)
>   >             (label_ref:SI 1158))) -1 (nil)
>   >     (expr_list:REG_EQUAL (label_ref:SI 1158)
>   >         (expr_list:REG_LABEL (code_label/v 1158 1268 1439 124 "" "" [0 uses
>   > ])
>   >             (nil))))
>   > 
>   > The code_label 1158 is deleted by delete_trivially_dead_insns apparently 
>   > because the preceding call to loop_optimize in toplev.c has reduced the
>   > number of uses to 1.  Maybe somebody can see how this occurs.
> Seems to me we have a reference counting problem.  There is clearly 
> a reference to label 1158 (insn 1531/1532), but it's reference count
> is zero.

These insns result from "moving" insns with label_ref's out of a loop.  The
old insns are deleted by delete_insn which reduces the LABEL_NUSES count.
However, the LABEL_NUSES count is not incremented when the new insns
are created.  This leaves the number of uses of the label at 1 and
delete_trivially_dead_insns deletes the code_label after loop_optimize
completes.

The simplest solution is to modify add_label_notes to increment the usage
count for CODE_LABEL's.  As far as I can tell, add_label_notes is only
used in loop.c when a new insn is created and an old one deleted.  An
alternative solution might be to actually move the old insn in the list
rather than deleting it.

There appears to be a similar situation in gcse.c.

I have run a complete bootstrap and check at -O3 under hpux 10.20 with this
patch and the patch previously posted at
<http://gcc.gnu.org/ml/gcc-bugs/2000-12/msg00156.html>.  It fixes register
rename walking over the return pointer.  The test results are here
<http://gcc.gnu.org/ml/gcc-testresults/2000-12/msg00172.html>.  I have also
run a complete bootstrap and check under i686 linux.

Please review and install if OK.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2000-12-14  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* loop.c (add_label_notes): Increment the label usage count when
	a note is added to an insn which refers to a CODE_LABEL.
	* gcse.c (add_label_notes): Likewise.

--- loop.c.orig	Thu Nov 30 12:22:29 2000
+++ loop.c	Fri Dec 15 17:25:46 2000
@@ -1589,7 +1589,8 @@
 }
 
 /* If X contains any LABEL_REF's, add REG_LABEL notes for them to all
-  insns in INSNS which use the reference.  */
+   insns in INSNS which use the reference.  LABEL_NUSES for CODE_LABEL
+   references is incremented once for each added note. */
 
 static void
 add_label_notes (x, insns)
@@ -1610,8 +1611,12 @@
          mark_jump_label for additional information).  */
       for (insn = insns; insn; insn = NEXT_INSN (insn))
 	if (reg_mentioned_p (XEXP (x, 0), insn))
-	  REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_LABEL, XEXP (x, 0),
-						REG_NOTES (insn));
+	  {
+	    REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_LABEL, XEXP (x, 0),
+						  REG_NOTES (insn));
+	    if (LABEL_P (XEXP (x, 0)))
+	      LABEL_NUSES (XEXP (x, 0))++;
+	  }
     }
 
   fmt = GET_RTX_FORMAT (code);
--- gcse.c.orig	Wed Dec  6 16:16:30 2000
+++ gcse.c	Fri Dec 15 17:23:06 2000
@@ -4839,8 +4839,9 @@
 }
 
 /* If X contains any LABEL_REF's, add REG_LABEL notes for them to INSN.
-   We have to add REG_LABEL notes, because the following loop optimization
-   pass requires them.  */
+   If notes are added to an insn which references a CODE_LABEL, the
+   LABEL_NUSES count is incremented.  We have to add REG_LABEL notes,
+   because the following loop optimization pass requires them.  */
 
 /* ??? This is very similar to the loop.c add_label_notes function.  We
    could probably share code here.  */
@@ -4868,6 +4869,8 @@
 
       REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_LABEL, XEXP (x, 0),
 					    REG_NOTES (insn));
+      if (LABEL_P (XEXP (x, 0)))
+        LABEL_NUSES (XEXP (x, 0))++;
       return;
     }
 


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>>>>> "Matthew" == Matthew Wilcox <matthew@wil.cx> writes:

Matthew> On Fri, Dec 15, 2000 at 06:32:12PM +0100, Jes Sorensen wrote:
>>  We probably cannot, we can however create our own version of the
>> header file for the parisc port.

Matthew> That was what I meant.  the question is, would it _work_?  Or
Matthew> is this struct embedded in other structs at
Matthew> non-16byte-aligned positions?

That can be solved by adding an aligned attribute to the struct definition.

Jes


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From: Alex deVries <adevries@redhat.com>
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Subject: Re: [parisc-linux] A180 Ignition Howto
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On 12 May 1999, Martin K. Petersen wrote:
> 
> My A180 arrived a couple of days ago.

So, the three Americans have theirs, the Dane was next, and the four of
the five Canadians have theirs too now.  The Welshman is all that's left.
Wuhoo!

> The A180 has a builtin webconsole. On the back of the system unit
> there are two RJ45 connectors. One of them is regular ethernet
> (DEC2114x btw. Should be piece of cake to get running) and the other
> is for the webconsole.

How did you know that it was a tulip?

> Oh, well. Bugger. Then I decided to try out the webconsole. The
> interface defaults to 192.0.0.192. Clickety-clik. *Blam* the Java
> stuff in the webconsole nuked my Netscape. Grumble.

I had similiar problems with Netscape 4.51.  It seems to work just fine on
Netscape 4.08, though, which is what came with Red Hat 5.2.

I haven't gotten to serial console yet because both my desktop and my
(recently dropped) notebook both only have 9 pin serial ports, and the
supplied cable's 25 pins.

Incidentally, Christopher Beard told me over lunch that he got the kernel
building under HPUX, which would solve the linking problems we were
worried about.

- Alex


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Re:

> > Matthew> Can we move the __spinlock to be the first element of the

Why not do it "right", with a kernel locking call of some kind?
User code should never do LDCW calls ... we've just seen yet another
example of why: it's difficult to do correctly.  Providing fast
locking mechanisms is the *kernel's* job.

(That's the real short version of the well-founded diatribe I launched
against HP for suggesting that developers do their own spinlocks...
and I was proved correct when a couple of months later HP said "oops,
our suggested code was wrong". :)

Another reason for kernel implementation: *real world experience*:
the programmer might *think* that the lock will *always* be held
for a very short time, so the spin loop is acceptable ... but ... yes,
things happen ... and sometimes the programmer is wrong, and that
can have tragic consequences.  A kernel-implemented fast-lock would
presumably ...like on MPE/iX ... have a max number of hard loops,
and then revert to a blocking-lock of some kind.

BTW, MPE's solution to misaligned semaphore structures is to select
one of 15 reserved kernel semaphores (based on the bottom 4 bits of
the address of the user's misaligned semaphore) as a temporary
"helper" semaphore (to loop/ldcws on).  At least that way,
there's a 14/15 chance that two different misaligned semaphores won't
compete with each other when they shouldn't.  

Sorry this isn't a solution, just a suggestion that requires a bit 
more work :)

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com        


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To: sieler@allegro.com (Stan Sieler)
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> User code should never do LDCW calls ... we've just seen yet another
> example of why: it's difficult to do correctly.  Providing fast
> locking mechanisms is the *kernel's* job.

There are good reasons for doing buzzlocks in user space

> for a very short time, so the spin loop is acceptable ... but ... yes,
> things happen ... and sometimes the programmer is wrong, and that
> can have tragic consequences.  A kernel-implemented fast-lock would
> presumably ...like on MPE/iX ... have a max number of hard loops,
> and then revert to a blocking-lock of some kind.

Thats how Mozilla does it, and with a short spin in user space performance
is way higher than always bugging the kernel



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From: LaMont Jones <lamont@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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> Thats how Mozilla does it, and with a short spin in user space performance
> is way higher than always bugging the kernel

The hp-ux implementation of msem_lock() takes the advantages of both:
Gateway to kernel mode (very light weight - one predicted branch beyond
the function call), and then it does the spin and wait as needed.  Very
low cost, with the kernel-mode blocking easier to do that a combined
user-and-kernel-mode implementation.

Just my $.02,
lamont


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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On 16 Dec 2000, Jes Sorensen wrote:

> >>>>> "Matthew" == Matthew Wilcox <matthew@wil.cx> writes:
> 
> Matthew> On Fri, Dec 15, 2000 at 06:32:12PM +0100, Jes Sorensen wrote:
> >>  We probably cannot, we can however create our own version of the
> >> header file for the parisc port.
> 
> Matthew> That was what I meant.  the question is, would it _work_?  Or
> Matthew> is this struct embedded in other structs at
> Matthew> non-16byte-aligned positions?
> 
> That can be solved by adding an aligned attribute to the struct definition.

Doesn't a struct automatically inherit the maximum alignment of its
fields?

-- 
Linuxcare.  Support for the Revolution.


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From: David Huggins-Daines <dhd@eradicator.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] signal.c, etc
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Hi,

Just reading through the archives, I noticed you came upon my rather
hackish IAOQ manipulation in signal.c.

If you guys need any explanation about the intent of that code please
ask me.  (I'm back on the parisc-linux list now, BTW)

I freely admit that it is bogus (in fact that's why the comment was
there), not because I didn't know which part of IAOQ was front and
which was back, but because:

(a) There are two different signal exit paths, one from interruptions,
    one from system calls.  This complicates things *tremendously*.
    However, exiting from a signal handler always goes via system
    calls, and in that case, the stored IAOQ values are meaningless.
    I probably should have removed all the meaningless frobbings of
    the stored IAOQ, but ... well ... time passes, you become occupied
    elsewhere, etc.

(b) I don't understand what the processor actually does when you
    restore IAOQ on exit from an interruption.  The HP documentation
    is not written in a particularly lucid manner.

(c) Setting iaoq_back to iaoq_front + 4 is *not* the right answer
    because you may have taken an interruption in a branch, or an insn
    may have been nullified, etc.

(d) I had about ten billion other things to do at the time and was
    under lots of pressure to get "more important things" working...

-- 
David Huggins-Daines		-		dhd@eradicator.org


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From: Helge Deller <deller@gmx.de>
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> $CONFIG_FB_STI is set to "y" as can be seen in .config, nonetheless
> CONFIG_FBCON_STI is not declared. 

Hi Karsten,

I can't reproduce your problems with a freshly checked-out tree. Maybe you 
have wrong permissions on .config or a similiar silly problem ?

If you check out, please remove your .config and make a new "make menuconfig".
Now remember to DISABLE (!!) "Support for console on serial port" under 
"Character Devices" and enable STI-console and STI-fb again.

Greetings,

	Helge


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Hello there,

i'm glad to see that Linux/HPPA makes such great efforts.
But unfortunately I've still problems in booting Linux/HPPA
on my 'king cobra'. :(((((

Today I got the latest nfsroot, xc (binaries) and compiled
the linux-kernel from CVS.
i just unpacked the nfsroot to the hd and changed /etc/fstab
accordingly. kernel build just works fine :))))

I just have one scsi-device on in my HP (scsi id 6, 1GB),
which has 3 partitions (like in the palo-readme).
the workstation has 32MB ram, a builtin network card,
and a crx color display (8bit 1280x1024, 19" A1097C screen).
nothing special, just an ordinary hp9000/730.
i don't use bootp/dhcp.

The kernel starts booting, but the scsi driver (old Ncr)
reports some warnings/errors like
shared memory is not coherent (or so), failed to reset scsi bus,
irq probe failed etc...

the scsi driver finally recognizes my Quantum HD and
tries to boot from it (mount it)..
There is nothing like VFS: unable to mount blabla;
instead it runs in to an infinite loop of kernel oops,
it prints continously kernel stack/register traces 
(seem to look all the same).

unfortunatly i can't write them down (since i cannot
interrupt the debug output or i don 't know how to)

the boot partition is /dev/sda3, and i use sti as console
the latter one seems not to work properly, as not all letters /lines
are printed on the screen, at least after the scsi HD is recognized
and the kernel tries to mount the root partition; e.g. i
can see something like this:

"Moun     partit  .."  or 
"VF  :un   to"         or 
"bootp    ..... .."

so at least i can guess what the output means

I've read that some guy here has successfully
booted linux/HPPA on an 730 before (about 2 months ago),
but i always fail. any hints what i'm don' wrong ?

thanks in advance,
greetings max

PS: keep on the good work!



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Re:

> There are good reasons for doing buzzlocks in user space

Not really...they all vanish when you look with the microscope of
experience.  Trust me.  I've been doing this stuff (multi-processor,
semaphores, locks, etc.) for 30 years.  

And, Lamont agrees, apparently :)

(Thanks, Lamont, and hi!)

The apparent advantages are *strictly* short term.  A single mistake
using a buzz lock from user code in a single process on a single computer
can cost more time than all properly implemented buzz locks ever save.

The "it's faster" argument is the same kind of argument as "not indenting my 
code makes it faster to write, because I don't have to waste the 
time pressing that space bar or tab key"....and precisely as bad an argument :)

Operating system functions, strangely enough, deserved to be implemented
in the *operating system*!  Gaining exclusive access to a data structure
is such a function.

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com        


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> The apparent advantages are *strictly* short term.  A single mistake
> using a buzz lock from user code in a single process on a single computer
> can cost more time than all properly implemented buzz locks ever save.

The cost of a syscall against a rarely contended lock is huge. So you
test in user space, you spin enough times to cover SMP contentions then
you leap into the kernel since its a context switch away while the
other guy held the lock, which at maybe a 30 clock window is unlikely



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Subject: Re: [parisc-linux] A180 Ignition Howto
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>>>>> "Alex" == Alex deVries <adevries@redhat.com> writes:

>> The A180 has a builtin webconsole. On the back of the system unit
>> there are two RJ45 connectors. One of them is regular ethernet
>> (DEC2114x btw. Should be piece of cake to get running) and the
>> other is for the webconsole.

Alex> How did you know that it was a tulip?

Motherboard chip spotting...


Alex> Incidentally, Christopher Beard told me over lunch that he got
Alex> the kernel building under HPUX, which would solve the linking
Alex> problems we were worried about.

Great!

-- 
Martin Kasper Petersen			BOFH, IC1&2, Aalborg University, DK
mailto:mkp@SunSITE.auc.dk		http://SunSITE.auc.dk/~mkp/


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Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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Xref: news.gmane.org gmane.linux.ports.parisc:8915

Hi Alan,

As Lamont Jones agreed, lightweight system calls exist, and their
cost is on the order of a couple of instructions (typically the equivalent
of a missed branch prediction).  HP-UX has some, Lamont speaks from experience
(as do I).

> > The apparent advantages are *strictly* short term.  A single mistake
> > using a buzz lock from user code in a single process on a single computer
> > can cost more time than all properly implemented buzz locks ever save.
> 
> The cost of a syscall against a rarely contended lock is huge. So you

Thus, it is *NOT* true that a syscall cost must be "huge".

You can say: I don't want to change it, or "we've always done it that way".
but, the one thing you can't accurately say is "this is the right way".

Been there, learned that, tried to share it with you, and am now 
giving up on it.

-- 
Stan (still right :) Sieler


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> As Lamont Jones agreed, lightweight system calls exist, and their
> cost is on the order of a couple of instructions (typically the equivalent
> of a missed branch prediction).  HP-UX has some, Lamont speaks from experience
> (as do I).

x86 is about 50 clocks to do a syscall so the maths is strongly in favour
of user mode spins.

> Thus, it is *NOT* true that a syscall cost must be "huge".

On 99.99% of the machines people care about it is 8)


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Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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> x86 is about 50 clocks to do a syscall so the maths is strongly in favour
> of user mode spins.

It really comes down to what is the cost to get into kernel mode, as
compared to the cost of dealing with the atomicity problems that come
in when you try to implement locking completely in user space.

In the ideal world, I think that what we want is a libc entry point that
we can use for semaphoring (msem_lock comes to mind...), which the lib
(in arch specific code) either implements in a mixture of user/kernel
space, or (if you can get to kernel mode cheaply), does it in kernel mode
via a lightweight system call.

Note also that spinning in a ldcw is very painful for the bus, and
switching to a ldw-loop followed by ldcw results in starvation in a
greater-than-2-way MP system.

lamont


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Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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> The cost of a syscall against a rarely contended lock is huge. So you
> test in user space, you spin enough times to cover SMP contentions then
> you leap into the kernel since its a context switch away while the
> other guy held the lock, which at maybe a 30 clock window is unlikely
> 

I am not sure I understand this thread very well. I would say that going
syscall() for a mutex lock (ldcw, testset, spinlock, whatever you name it) is
not a question of cost it is just simply impossible to avoid. 

Atomically load/clear (or test/set) a word, indeed can be done (should be
done) in user space, but whence one thread got it (for a very short period of
time claim the getter), the getter can be pre-empted anytime owning the lock
word, because and as far as I know, interuption are not disabled when getting
the lock word. The other wanters will then spinlock for a very long period of
time then, what apeared a fast non-syscall get, become a CPU hog, there is one
spinlock running. So I agry with what you said, the wanters want to spin lock
a little on the lock word, because the taker may be rigth sometime and release
it quick, and after a little number of loop count, the wanter goes to sleep on
the lockword, just to get a chance to be awaken, and who take car of
sleep/wakeup, I think it is the OS. Then how to communicate the lock word to
the OS, because the OS must do the atomic load/clear (test/set) on the same
lock word, I think it is with an API, then a libcall/syscall, or
macro/syscall, I think libcall is better since the tiny user space function
can be inlined... I think the pthread API is perfect for this, and this thread
started from pthread. For people who need 'fast' mutual exclusion without the
need to make their prog pthreaded, I think they can implement their own
mutex_lock() syscall, i.e the one to call if you didn't succeeded to get the
lock in user land for a little while.

Phi


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Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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> we can use for semaphoring (msem_lock comes to mind...), which the lib
> (in arch specific code) either implements in a mixture of user/kernel
> space, or (if you can get to kernel mode cheaply), does it in kernel mode
> via a lightweight system call.
> 
> Note also that spinning in a ldcw is very painful for the bus, and
> switching to a ldw-loop followed by ldcw results in starvation in a
> greater-than-2-way MP system.

That sounds a good reason to do at least most of it in kernel space on hppa


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> >
> > Note also that spinning in a ldcw is very painful for the bus, and
> > switching to a ldw-loop followed by ldcw results in starvation in a
> > greater-than-2-way MP system.
> 
> That sounds a good reason to do at least most of it in kernel space on hppa
> 


I think LaMont Jones meant that the spinlock loop (in user space AND in kernel
space) must implement a load word loop, and issue a load-and-clear word only
when the lock word looks 'free', this is because the 'write' part of the
load-and-clear word issue a cache broadcast transaction on the bus, so the
loop should be on load-word followed by load-clear-word when it looks free,
after a given amount of loop you got to ask for kernel arbitration, then OS
whence again try to get the lock and if fail go to sleep.

Phi


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> I am not sure I understand this thread very well. I would say that going
> syscall() for a mutex lock (ldcw, testset, spinlock, whatever you name it) is
> not a question of cost it is just simply impossible to avoid. 

It comes down to probability

A syscall on x86 gives you a 50+ clock overhead at all times
A user mode test and short spin has a 1 or 2 clock overhead if uncontended
You spin for a few clocks in case the contention is SMP and if that works
you win

IFF the lock is contended then you just spent 100 clocks instead of 50
doing a short spin then entering the kernel.

With 1% contention that means you spent 99 times doing 2 clocks, 1 time doing
100, which is a win over 100 times doing 50 clocks.

Since hppa its apparently 2 clocks to the syscall the numbers are apparently
different.



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From: LaMont Jones <lamont@hp.com>
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Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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> I think LaMont Jones meant that the spinlock loop (in user space AND in kerne
> space) must implement a load word loop, and issue a load-and-clear word only
> when the lock word looks 'free', this is because the 'write' part of the
> load-and-clear word issue a cache broadcast transaction on the bus, so the
> loop should be on load-word followed by load-clear-word when it looks free,

That was one of the first solutions tried in HP-UX, and it resulted in
processor 4 not getting any time (3 wasn't much better), due to the way
that bus arbitration works (it favors one end of the bus.)

The current semaphore operations in the HP-UX kernel do not use ldcw: they
use stb and ldw in some interesting orders (which break when we get weak
ordering with IA64, but then we'll have a low-cost test-and-set.)

lamont


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From: LaMont Jones <lamont@hp.com>
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Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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> Since hppa its apparently 2 clocks to the syscall the numbers are apparently
> different.

Actually, the sequence consists of:

libc_stub:
	bl	gateway_page_addr
	...

gateway_page_addr:
	gate	.+8
	...
	...

And we find ourselves in kernel mode after 2 branches (unconditional
and pre-computed ==> predict correctly) and two delay slots.  At that
point we have kernel data structures at our fingertips, but have in no
way done a complete 'syscall' entry - those are (at least on hp-ux) a
bit more expensive...  (It also means that kernel vs user detection in
traps code needs to look at the priv level, not the stack pointer...)

lamont


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New web site in CVS...
Date: Mon, 18 Dec 2000 11:05:48 -0500
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I've checked in the redone web site into CVS; it's in a module called
'web'.

The current implementation balances both the need for developers to
check out and locally host the pages without custom server
configuration, and the need for Linuxcare's professional web team to
have features that they need.  Balancing these two hasn't always been
easy.

Here's how it works.  In the site there are two directories; src which
contains raw .x files, and tools, which contains a somewhat hacked up
perl script to do processing.  Running 'make' in the root directory will
create a directory called 'generated' which will contain the final HTML.
To make your changes, just edit the source in the src/ directory.

At this point, I don't feel any need to change the overall architecture
and design of this site.  Everyone wants something different, and I want
you to actually use this for awhile before you consider anything else.

The content, however, I'd appreciate feedback and CVS commits on. 
Please be constructive.

We'll continue the use of the existing website until we determine that
the new content is ready to go up, then we'll switch over the hosting. 
Because of the holidays coming up, that switch will probably be at the
very beginning of January.

- Alex "happy the fight with CVS is over" deVries

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Kumar <kumar@ix.netcom.com>
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Subject: Re: [parisc-linux] A180 Ignition Howto
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Flame intended:

Well I thought Linux was an international phenomenon and not limited
to Americans, Canadians, Dane or Welshman. They already have enough money
to lick Gates's ass. It all sounds so stupid to me...at least narrow
minded. I am getting out of this mailing list as soon as possible.

Linux on PA-RISC does not depend on some self conceited people.

-Kumar

On Tue, 11 May 1999, Alex deVries wrote:

> 
> On 12 May 1999, Martin K. Petersen wrote:
> > 
> > My A180 arrived a couple of days ago.
> 
> So, the three Americans have theirs, the Dane was next, and the four of
> the five Canadians have theirs too now.  The Welshman is all that's left.
> Wuhoo!
> 
> > The A180 has a builtin webconsole. On the back of the system unit
> > there are two RJ45 connectors. One of them is regular ethernet
> > (DEC2114x btw. Should be piece of cake to get running) and the other
> > is for the webconsole.
> 
> How did you know that it was a tulip?
> 
> > Oh, well. Bugger. Then I decided to try out the webconsole. The
> > interface defaults to 192.0.0.192. Clickety-clik. *Blam* the Java
> > stuff in the webconsole nuked my Netscape. Grumble.
> 
> I had similiar problems with Netscape 4.51.  It seems to work just fine on
> Netscape 4.08, though, which is what came with Red Hat 5.2.
> 
> I haven't gotten to serial console yet because both my desktop and my
> (recently dropped) notebook both only have 9 pin serial ports, and the
> supplied cable's 25 pins.
> 
> Incidentally, Christopher Beard told me over lunch that he got the kernel
> building under HPUX, which would solve the linking problems we were
> worried about.
> 
> - Alex
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 
> 


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
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        Philippe Benard <phi@hpfrcu03.france.hp.com>,
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On Mon, Dec 18, 2000 at 07:49:32AM -0700, LaMont Jones wrote:
> > Since hppa its apparently 2 clocks to the syscall the numbers are apparently
> > different.
> 
> Actually, the sequence consists of:
> 
> libc_stub:
> 	bl	gateway_page_addr
> 	...
> 
> gateway_page_addr:
> 	gate	.+8
> 	...
> 	...
> 
> And we find ourselves in kernel mode after 2 branches (unconditional
> and pre-computed ==> predict correctly) and two delay slots.  At that
> point we have kernel data structures at our fingertips, but have in no
> way done a complete 'syscall' entry - those are (at least on hp-ux) a
> bit more expensive...  (It also means that kernel vs user detection in
> traps code needs to look at the priv level, not the stack pointer...)

... ignoring the potential pain of TLB misses caused by losing locality.
But this is merely a quibble, I think.

-- 
Revolutions do not require corporate support.


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Xref: news.gmane.org gmane.linux.ports.parisc:8927


Alex deVries writes...

> 
> I've checked in the redone web site into CVS; it's in a module called
> 'web'.
[snip]
> 
> The content, however, I'd appreciate feedback and CVS commits on. 
> Please be constructive.

Ok I just committed some fixes. I have a couple comments,

- someone should run a link checker over the site. I tried a lot by hand but 
didn't want to spend the time to do all the weekly reports, etc.

- weekly/index.html shows the last update from May 12, 2000 and the links are 
broken. I don't know if we should go to the trouble to change all the old 
reports(and probably shouldn't for historical reasons) but if we released a 
new weekly report it would displace this old/b0rken one.

- hardware/index.html is not done. I will take a look at it shortly.

-- 
Matt Taggart
taggart@fc.hp.com



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Subject: Re: [parisc-linux] (still) booting problems with HP9000/730
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"M. Grabert" wrote:
> The kernel starts booting, but the scsi driver (old Ncr)
> reports some warnings/errors like
> shared memory is not coherent (or so), failed to reset scsi bus,
> irq probe failed etc...
> 
> the scsi driver finally recognizes my Quantum HD and
> tries to boot from it (mount it)..
> There is nothing like VFS: unable to mount blabla;
> instead it runs in to an infinite loop of kernel oops,
> it prints continously kernel stack/register traces
> (seem to look all the same).

I talked to Richard Hirst about this a few hours ago, and it looks like
there's a problem with the SCSI driver.  It's unclear how difficult it
would be to get that going, but it certainly is possible to fix.

You'd probably have more success with the 720/730 if you did nfsroot.

If anyone has a 720 or 730 (or any other machine) with correct or broken
kernel boot logs, I'm collecting them! Those can help developers who
don't have access to all the hardware.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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Subject: [parisc-linux] glibc build failing and weird gcc configure error, post gcc merge
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Hi,

Alan Modra just merged gcc with 20001211 upstream and checked in the result on 
a "devel" branch. I tried building a cross-toolchain but the glibc build fails 
with the following error,

-----------------------------------------------------------------------------
hppa-linux-gcc getnameinfo.c -c -O -Wall -Winline -Wstrict-prototypes 
-Wwrite-strings -g      -I../include -I. -I/home/al-76/puffin/xc-build/glibc/in
et -I.. -I../libio  -I/home/al-76/puffin/xc-build/glibc -I../sysdeps/hppa/elf 
-I../linuxthreads/sysdeps/unix/sysv/linux/hppa -I../linuxthreads/sysdeps/unix/s
ysv/linux -I../linuxthreads/sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv
 -I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/hppa 
-I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux 
-I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman 
-I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix 
-I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 
-I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 
-I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa 
-I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic  -nostdinc 
-isystem /home/al-76/puffin/xc/lib/gcc-lib/hppa-linux/2.97/include -isystem 
/home/al-76/puffin/palinux/linux/include -D_LIBC_REENTRANT -include 
../include/libc-symbols.h     -o /home/al-76/puffin/xc-build/glibc/inet/getname
info.o
getnameinfo.c: In function `nrl_domainname':
getnameinfo.c:164: Internal compiler error in eliminate_regs, at reload1.c:2521
Please submit a full bug report.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[2]: *** [/home/al-76/puffin/xc-build/glibc/inet/getnameinfo.o] Error 1
make[2]: Leaving directory `/home/al-76/puffin/palinux/glibc/inet'
make[1]: *** [inet/subdir_lib] Error 2
make: *** [all] Error 2
-----------------------------------------------------------------------------

I also noticed that during the configure for the simple gcc I use to 
cross-build glibc I get,

-----------------------------------------------------------------------------
$ configure --target=hppa-linux --host=i386-linux --build=i386-linux 
--prefix=/home/al-76/puffin/xc --disable-shared --disable-nls 
--with-headers=/home/al-76/puffin/palinux/include --without-libc 
--enable-languages=c --disable-sanity-checks"
*** This configuration is not supported in the following subdirectories:
     target-libffi target-boehm-gc target-zlib target-libjava
    (Any other directories should still work fine.)
-----------------------------------------------------------------------------

I haven't ever seen that before. Any ideas?

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com





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Subject: Re: [parisc-linux] glibc build failing and weird gcc configure error, post gcc merge
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> getnameinfo.c: In function `nrl_domainname':
> getnameinfo.c:164: Internal compiler error in eliminate_regs, at reload1.c:2521

Been there.  Try this patch to gcc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2000-11-14  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* reload1.c (eliminate_regs): Don't abort on MEM USEs.

--- reload1.c.orig	Wed Sep 27 14:27:23 2000
+++ reload1.c	Tue Nov 14 16:01:56 2000
@@ -2499,6 +2499,10 @@
 	return x;
 
     case USE:
+      /* Handle insn_list USE that a call to a pure functions may generate. */
+      new = eliminate_regs (XEXP (x, 0), 0, insn);
+      if (GET_CODE (new) == MEM)
+	return XEXP (new, 0);
     case CLOBBER:
     case ASM_OPERANDS:
     case SET:


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From: Stan Sieler <sieler@allegro.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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In-Reply-To: <20001218144036.5BE0B1872C@security.hp.com> from "LaMont Jones" at Dec 18, 2000 07:40:33 AM
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Re:

LaMont writes:
...
> That was one of the first solutions tried in HP-UX, and it resulted in
> processor 4 not getting any time (3 wasn't much better), due to the way
> that bus arbitration works (it favors one end of the bus.)
> 
> The current semaphore operations in the HP-UX kernel do not use ldcw: they
> use stb and ldw in some interesting orders (which break when we get weak
> ordering with IA64, but then we'll have a low-cost test-and-set.)

Although I said I'd stay out...

Alan...this is *important*...re-read what's clear between the lines above:

   The user is the *WRONG* person to implement locks.
   (this includes user libraries)

Why?

   - they make mistakes

   - they don't know as much as they need to know

   - their code runs on slightly different hardware (e.g., different
     models of PA-RISC with slightly different characteristics).

   - the cost of multiple copies of code (some copies by one user
     programmer, some by another) 
     ... many of which are "wrong" ... can be extreme.

Simply put:

   Locking is *important*:

      - it must be done correctly (e.g., for single-owner locks, only one
        thread must think it owns it at a time; and the owner shouldn't
        be starved of CPU time; and a requestor shouldn't run away with
        CPU resources)

      - it must be efficient.

Note that efficiency *IS ALWAYS LESS IMPORTANT THAN CORRECTNESS*.
That's 100%, totally vital!  To say "important" is to make a severe
understatement.

Well then, where can we put locking such that it's more likely to be
correct?  The kernel.  You can (and have to) rely on the kernel more than on
user code.  The kernel gets patched/fixed/updated regularly.  The kernel
is a *single point* of implementation, as opposed to hundreds of separate
points of implementation.

Why not rely on libraries?  Because code in libraries is potentially
staler than the kernel, and you have potentially many different variations.
Can you interrogate and ask what version of msem_lock() you're calling?  
Can you find out what version of msem_lock an archive-linked application
you downloaded from a web site is running?
No...but you *can* ask what version of Linux (or whatever) you're running!

Alan...this is the voice of experience again...shouting louder! :)

An operating system should provide a user-callable locking mechanism that:

   - provides a single-owner lock;

   - provides an optional multi-owner lock (e.g., multiple processes 
     can lock for shared read access, or it can be locked by a single 
     owner for "write" access);

   - provides an optional (short-term) priority boost if a high priority
     process wants to obtain a lock owned by a low priority process

   - identifies what locks are currently held by what processes (and
     for how long)

   - is 100% reliable and, if possible, highly efficient

   - allows the programmer to give a hint to the OS about the length
     of time they'll have the lock locked

   - allows a root process to unlock a lock owned by a hung/dead process
     (with stated semantics...e.g., does the first waiter get the lock,
     or receive an error (i.e., ERR_PRIOR_OWNER_DIED))

   - allows the programmer to specify what happens to a locked lock
     owned by a process that then dies. 

   - optionally detects deadlocks, and/or prevents deadlock attempts.

Although I can't find the man pages for Linux msem_lock, I know that the
HP-UX msem_lock doesn't meet all of these criteria (nor does MPE/iX, although
it comes a lot closer).

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com        


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> Note that efficiency *IS ALWAYS LESS IMPORTANT THAN CORRECTNESS*.
> That's 100%, totally vital!  To say "important" is to make a severe
> understatement.

Tell that to the folks I work with at times for whom user space lock testing
shaves 4 weeks off a run. Try the difference in Mozilla.

In both cases Im forced to disagree - at least for x86.

> Can you interrogate and ask what version of msem_lock() you're calling?  

Yes. ELF has versioned symbols if they have changed. You can use those for
many things. X86 however has a stable instruction set abi for locking.

> Although I can't find the man pages for Linux msem_lock, I know that the
> HP-UX msem_lock doesn't meet all of these criteria (nor does MPE/iX, although
> it comes a lot closer).

We use user space locks for stuff like pthreads on most platforms with
the kernel doing the contention cases. I'm not arguing that it wouldnt be nice
to let the kernel do it all if we had cheap syscalls. 

Alan


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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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In-Reply-To: <E1486N5-000662-00@the-village.bc.nu> from "Alan Cox" at Dec 18, 2000 07:54:52 PM
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Re:

> 
> > Note that efficiency *IS ALWAYS LESS IMPORTANT THAN CORRECTNESS*.
> > That's 100%, totally vital!  To say "important" is to make a severe
> > understatement.
> 
> Tell that to the folks I work with at times for whom user space lock testing
> shaves 4 weeks off a run. Try the difference in Mozilla.

To say I'm shocked is an understatment.

Alan, if you think efficiency is more important than correctness, then
please let us know what programs you've worked on,
so we can all avoid them! :)

However, I don't really believe you meant that!

Note that I never said efficiency isn't important.  But, it's like
a car with no brakes...that car can go faster in a straight line, but
it isn't correct ... and I sure as hell am not going to deploy such a car
for my commute!

> In both cases Im forced to disagree - at least for x86.

So...a fast x86 lock is more important than one that's correct?
I'm glad I'm not doing mission critical work on an x86! 
 
> > Can you interrogate and ask what version of msem_lock() you're calling?  
> 
> Yes. ELF has versioned symbols if they have changed. You can use those for
> many things. X86 however has a stable instruction set abi for locking.

So, the man page for msem_lock for ELF documents various versions?  Great!

Wait...no, it doesn't.

Scanning through a few ELF x-86 libraries fails to show any per-procedure
version information (although you can generally guess an overall version
of the library package).

With HP-UX, or MPE/iX, I can make a system call to inquire about the
OS version ... that, coupled with information available to the programmer
at writing time, allows a program to make decisions like "I won't try
to do X on this release, because I know that X didn't work correctly
until the next release".

Alan...I write products, some of them run on every release of MPE/iX
that's every come out.  That requires attention to detail, but the 
payoff is that you don't have to tell me what version you're running when
you get one of my programs.  I'd *like* to be able to do that on HP-UX
and Linux, but it's a awful lot harder. 

> We use user space locks for stuff like pthreads on most platforms with
> the kernel doing the contention cases. I'm not arguing that it wouldnt be nice
> to let the kernel do it all if we had cheap syscalls. 

Ok...the "I'm not arguing" sure wasn't clear before!

And...you still don't get it...it's not merely "nice", it's clearly better.
...just like the idea of adding brakes to that car.

(BTW, I'm trying to strip the cc list, so the interested parties don't get
tons of copies :)

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com        


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From: LaMont Jones <lamont@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ldcw in __pthread_acquire
Date: Mon, 18 Dec 2000 13:44:12 -0700
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Cc: sieler@allegro.com (Stan Sieler), parisc-linux@thepuffingroup.com,
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> > Note that efficiency *IS ALWAYS LESS IMPORTANT THAN CORRECTNESS*.
> > That's 100%, totally vital!  To say "important" is to make a severe
> > understatement.
> Tell that to the folks I work with at times for whom user space lock testing
> shaves 4 weeks off a run. Try the difference in Mozilla.
> In both cases Im forced to disagree - at least for x86.

Correct appears to be a relative term.  An implementation of semaphores is
correct if it provides mutual exclusion.  Performance becomes a secondary
consideration to that, of course.

I have to side with Alan on this point.  x86 costs too much to go into the
kernel for something that you'll normally not have contention on.  The only
challenge there is that the owner of the resource may hold it for a _long_
time if he gets swapped out, since the kernel has no knowledge.  Note,
however, that it is still correct: eventually, all of the waiters will go
to sleep, and the owner will finally get time to do his thing and free the
sema.

With PA, there's a chance to get into kernel mode cheaply, and it probably
makes sense to do an arch-specific msem_lock() that avoids the heavy
contention issues.

> > Can you interrogate and ask what version of msem_lock() you're calling?  
> Yes. ELF has versioned symbols if they have changed. You can use those for
> many things. X86 however has a stable instruction set abi for locking.

parisc's set is usable as well, but there's a difference in how you code
test-and-set vs test-and-clear.  This makes it a royal pain to port code
that expects test-and-set to parisc...  (And test and inc/dec makes it
even easier...)

> > Although I can't find the man pages for Linux msem_lock, I know that the
> > HP-UX msem_lock doesn't meet all of these criteria (nor does MPE/iX, althou
> > it comes a lot closer).
> We use user space locks for stuff like pthreads on most platforms with
> the kernel doing the contention cases. I'm not arguing that it wouldnt be nic
> to let the kernel do it all if we had cheap syscalls. 

Sounds perfectly reasonable.  How hard is it to put arch-specific things
into that path?

lamont


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] More on stacks
Date: Mon, 18 Dec 2000 21:36:28 +0000
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I've just committed code which makes stacks work sanely.  This was much
more tricky than I anticipated.  I now _don't_ believe that changes
are really needed to all binaries, and so I withdraw my request for a
break-all-binaries day.  Of course, there are other reasons we may wish
to do this.

I suspect my changes will have broken SOM support, but I don't have any
SOM binaries here to test with.  Please don't send me any, I can't afford
to download them :-)

It definitely works for 32-bit kernels.  Please check, Paul.  I've done
my best to use elf_addr_t, elf_caddr_t everywhere, so it should be
independent of kernel LP64 state.  I think the changes I've made to
<asm/processor.h> make start_thread32 obsolete.

Here's a bit of a design document I wrote while working on this problem.
It may explain why it was working before, and how it works now.
Does anyone think this document is worthy of being put on the website
or in Documentation/ or somewhere more permanent?



Before I started, we were setting our stack pointer to MAX_ARG_PAGES *
PAGE_SIZE.  Then the kernel was treating the stack as a downward-growing
entity, copying strings to it, etc.  This has the following problems:

 * It potentially wastes a large chunk of address space.  Not memory, since
   unused pages aren't allocated.
 * Programs which get close to this limit end up faulting during
   setup_elf_tables rather than returning -E2BIG.
 * We don't get a nice stack frame.  libc's _start entry point has to do a
   lot more work than really necessary.

So we need to move the strings down to the base of the stack area.
This is more difficult than I realised.  I restructured copy_strings
to start at the bottom instead of the top and copy the strings upwards
instead of downwards.

However, binfmt_script (amongst others) expects there to be room at
the bottom of the stack to prepend new argument strings.  I considered
making binfmt_elf `know' how many new strngs had been put on the stack
and munge the argv setup in an appropriate manner.  But this would be
very unpleasant code.

Instead, I rewrote copy_strings to put the strings on the stack in the
opposite order -- argv[argc-1] to argc[0].  Now new strings placed on
the stack would fit naturally into the argc calculation scheme [once
i'd written it, because it would have to work slightly differently from
the current scheme].  But then I noticed /proc/<pid>/environ and, more
importantly, /proc/<pid>/cmdline.  These expect the strings to be in the
right order.

Rather than rewrite these functions (and they would be significantly
slower if they had to reorder the strings instead of just copying them),
I've opted to go _back_ to copying the strings downward up unti the
point where they're mapped into memory.  At that point, the strings will
be copied (entirely within kernel memory, before they get mapped) into
pages so they appear to userspace mapped at the base of the stack area.
This also allows processes to setproctitle() [which appears to mean
overwriting argv[0] under Linux] without as much danger of overwriting
a crucial part of the stack.

After this mapping is done, setup_elf_tables will still have to be
modified somewhat as the stack will now be growing upwards.  But that's a
good thing since programs which attempt to overflow the maximum argument
length should now work properly again.


-- 
Revolutions do not require corporate support.


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From: Tom Javen <tomja@InnoTrac.fi>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] A180 Ignition Howto
Date: Wed, 12 May 1999 12:37:44 +0300 (EEST)
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To: Kumar <kumar@ix.netcom.com>
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On Tue, 11 May 1999, Kumar wrote:

> 
> 
> Flame intended:
> 
> Well I thought Linux was an international phenomenon and not limited
> to Americans, Canadians, Dane or Welshman. They already have enough money
> to lick Gates's ass. It all sounds so stupid to me...at least narrow
> minded. I am getting out of this mailing list as soon as possible.
> 
> Linux on PA-RISC does not depend on some self conceited people.
> 
> -Kumar
And your problem was ?


-- 
=============================+===========================
Tom Javen                    |   Innotrac Diagnostics Oy
email tom.javen@innotrac.fi  |   Finland
gsm   +358-40-5860532        |   phone +358-2-2410025
                             |   fax   +358-2-2410024
=============================+===========================
     


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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> > We use user space locks for stuff like pthreads on most platforms with
> > the kernel doing the contention cases. I'm not arguing that it wouldnt be nic
> > to let the kernel do it all if we had cheap syscalls. 
> 
> Sounds perfectly reasonable.  How hard is it to put arch-specific things
> into that path?

Its all arch specific, so you can do it right for hppa. The code in db3 is
also arch specific (falling back to kernel) as is the Mozilla code.


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From: LaMont Jones <lamont@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ldcw in __pthread_acquire
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> Why?
>    - they make mistakes
So do kernel engineers.

>    - they don't know as much as they need to know
>    - their code runs on slightly different hardware (e.g., different
>      models of PA-RISC with slightly different characteristics).
These are the same point, and it ain't necessarily so.

>    - the cost of multiple copies of code (some copies by one user
>      programmer, some by another) 
>      ... many of which are "wrong" ... can be extreme.
This isn't a right vs wrong, just a code bloat issue...

>       - it must be done correctly (e.g., for single-owner locks, only one
>         thread must think it owns it at a time;
It doesn't matter if a thread thinks it owns the lock if it can't access
the resource.  (Yes, you can do locking that way, I can think of at least
two places in HP-UX where that is the case:  one in kernel mode, and one
in user mode with a kernel assist...)  Both of those are based on the fact
that it's more efficient to run like hell and then pick yourself up when
you trip than it is to lock before using.  Both cases were driven by the
simple fact that efficiency was the difference between having a product
and having a piece of junk.

>	  and the owner shouldn't be starved of CPU time;
Doesn't matter until someone else wants the resource...  Given a finite
amount of CPU resource, and a given number of locks, someone is going to
get starved sometime.

>	  and a requestor shouldn't run away with CPU resources)
Shouldn't hold the resource _longer_than_necessary_.  But now you're
talking performance.

>       - it must be efficient.
It _should_ be efficient.

> Note that efficiency *IS ALWAYS LESS IMPORTANT THAN CORRECTNESS*.
> That's 100%, totally vital!  To say "important" is to make a severe
> understatement.

See above.  The correct technical solution is not always the correct
business decision.  (And man, does it hurt parts of me to say that.)
If the efficient solution allows a bit of starvation in a corner case,
then it may be best to just document the corner case and live with it,
based on how much better the normal case is.

> Well then, where can we put locking such that it's more likely to be
> correct?  The kernel.  You can (and have to) rely on the kernel more than on
> user code.  The kernel gets patched/fixed/updated regularly.  The kernel
> is a *single point* of implementation, as opposed to hundreds of separate
> points of implementation.

A single shared-only library pretty much constitutes a single point of
implementation as well.

> Why not rely on libraries?  Because code in libraries is potentially
> staler than the kernel, and you have potentially many different variations.
> Can you interrogate and ask what version of msem_lock() you're calling?  
> Can you find out what version of msem_lock an archive-linked application
> you downloaded from a web site is running?
> No...but you *can* ask what version of Linux (or whatever) you're running!

You can also provide the locking code in a shared-only library.  Depending
on what is being locked, you may not have to worry about all of the above:
if the entire set of binaries that will be locking the shared resource
arrive as a set, then you just make sure that you deliver the set.  If you
have, say, a database that is accessed by everyone and their mother, then
you may have a different situation on your hands.

Spinning in user space before going to the kernel to do it is a waste
of every user-space cycle, but only when you go to the kernel.  Faced
with a 50-state kernel-mode cost, I would be strongly inclined (for a
performance sensitive app) to go with a user space spin, with kernel
assisted blocking.  If I were concerned about the starvation potential,
I would consider some minor adjustments to the blocking code in the
kernel to promote the owner of the lock, in order to reduce the starvation
issues.

There are situations where performance is _EVERYTHING_.  In those cases,
you pay a higher support price, and just do what has to be done.

> Alan...this is the voice of experience again...shouting louder! :)
> An operating system should provide a user-callable locking mechanism that:

>    - allows the programmer to give a hint to the OS about the length
>      of time they'll have the lock locked

Not really needed, but certainly on the wishlist.

>    - allows a root process to unlock a lock owned by a hung/dead process
>      (with stated semantics...e.g., does the first waiter get the lock,
>      or receive an error (i.e., ERR_PRIOR_OWNER_DIED))

If the lock is not in kernel memory, then I don't have to have someone
unlock the sema, that becomes an app issue.

>    - optionally detects deadlocks, and/or prevents deadlock attempts.

If sleeping is done at interruptable priorities, then this is an app
problem, although it sure is nice when the locking API takes care of
deadlock detection - it lets you be sloppy in defining your locking
strategy and get away with it.

lamont


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] SuckyIO support
Date: Tue, 19 Dec 2000 09:42:51 +0000
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Wow, this is a really sucky chip :-)

OK, here's a first stab at some support for it.  Could someone with a
B/C/J `thousand' class machine please give it a try, and let me see the
relevant portions of their bootlog?

Obviously, this code only tries to set up the IRQ for the IDE driver
and doesn't attempt to address any of the other broken things this chip
requires, but it's architecturally in the right place.

It'd be really handy if I could get access to one of that class of machine
with remote console & remote rebooting facilities, but i should be near
a machine of that type in a couple of months anyway...

diff -u linux-cvs/drivers/pci/quirks.c linux-mine/drivers/pci/quirks.c
--- linux-cvs/drivers/pci/quirks.c	Fri Nov 10 21:43:18 2000
+++ linux-mine/drivers/pci/quirks.c	Tue Dec 19 09:27:28 2000
@@ -234,6 +234,25 @@
 	pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
 }
 
+static void __init quirk_ns_87560(struct pci_dev *dev)
+{
+	switch (dev->device)
+	{
+		case PCI_DEVICE_ID_NS_87415:
+			break;
+		case PCI_DEVICE_ID_NS_87560_LIO:
+			{
+				struct pci_dev *ide_dev;
+				char irq;
+				ide_dev = pci_dev_b(dev->bus_list.prev);
+				pci_read_config_byte(dev, 0x6B, &irq);
+				ide_dev->irq = irq & 0xf;
+				printk("Assigned IRQ %d to IDE\n", ide_dev->irq);
+			}
+			break;
+	}
+}
+
 /*
  *  The main table of quirks.
  */
@@ -269,6 +288,7 @@
 	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_AL,	PCI_DEVICE_ID_AL_M7101,		quirk_ali7101_acpi },
  	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82371SB_2,	quirk_piix3_usb },
 	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82371AB_2,	quirk_piix3_usb },
+	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_NS,	PCI_ANY_ID,	quirk_ns_87560 },
 	{ 0 }
 };
 

-- 
Revolutions do not require corporate support.


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From: Alex deVries <adevries@linuxcare.com>
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Subject: Re: [parisc-linux] SuckyIO support
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Matthew Wilcox wrote:
> 
> Wow, this is a really sucky chip :-)
> 
> OK, here's a first stab at some support for it.  Could someone with a
> B/C/J `thousand' class machine please give it a try, and let me see the
> relevant portions of their bootlog?

I've taken mkp's initial work on superio.c and added some stuff, but in
the end am confused by where we actually get the interrupt number from
the card.  There's no such register in function 1 (where the interrupts
ultimately end up) and both registers on function 0 and 2 return 0,
which I don't think is right.  I'd thought that PDC would have set this
up.  There's not much I can do at this point until we can have some of
Grant's attention.

In the meantime, I'll try booting with all of this on the C3k.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] hwclock
Date: Tue, 19 Dec 2000 10:49:10 -0500
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There's been some discussion on IRC about not always having to set the
clock when in userspace.  I had a quick look at it, and it shouldn't be
too hard.  We just need a parisc version of hwclock which calls the
PDC_TOD functions.

It should be reasonably easy to get this going, so if someone's looking
for an unintrusive and simple task, have a look at it.

hwclock is part of the ever-terrible utils-linux package, and you should
be able to use hwclock-ppc.c as a starting point.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/old boot problems...
Date: Tue, 19 Dec 2000 11:04:51 -0500
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Richard Hirst has the same problem on his 715/75 as I have on my lovable
715/50. When booting up, it just hangs after "an older box...".  

I know that 715/old machines have this, 715/new apparantly don't, and
712 are safe.  Has anyone noticed any other machines hanging at this
point?

The problem seems to be in inventory.c when we're scanning the functions
with pdc_system_map, and it hangs on mod=1 in
really_do_oldhw_inventory(). It's an easy fix, but I want the fix to
only address the machines that are affected.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] glibc and ptrace
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I have a problem with ptrace.  The ptrace syscall for PTRACE_PEEK*
saves the result in *data (4th arg), whereas the man page says
it returns the result as the return value, and the 4th arg is
ignored.  userland things, like strace for example, expect the
man page behaviour.  I assumed glibc should be providing a wrapper
to translate from kernel to userland syntax, but our glibc doesn't
appear to do so.

I had a look at glibc and found the wrapper code in
sysdeps/unix/sysv/linux/ptrace.c but that isn't included in the
build.  Instead I end up with misc/ptrace.o being a raw syscall.
I then found sysdeps/unix/sysv/linux/hppa/syscalls.list and commented
out the ptrace line in there and rebuilt.  This time it looks like
misc/ptrace.o has the proper wrapper in it (although I havn't
actually tried to run it).

So, should I be fixing glibc (if removing that line is indeed a fix),
or should I be fixing our kernel source so the glibc wrapper isn't needed?
ia64, for example seems to fix it in the kernel, while sparc64 looks
like it uses the glibc wrapper.

(my strace port only works atm because it has its own wrapper, and
I'm trying to tidy that up).

Richard


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From: =?iso-8859-1?Q?SOETE_Jo=EBl?= <JSO@europay.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C110 - palinux-0.5.iso boot but...
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Hello all,

I just download the palinux-0.5.iso.

But I only have graphical screen as console for a B180 or C110.
Also I have to rebuild the kernel and rebuild the CD.

I first abandon the idea to rebuild the tool chain on HP-UX :( , because I
reach to build a small x86 linux box.

I than download the xc-20001211 cross-compiler, the linux-20001218 and
palo-20001218.

I than follow recipe procedure paragraph 5 and paragraph 8 where I replace
ramdisk20000503-sercon.tgz with ramdisk20000503-sticon.tgz.

I then mount -o loop -t iso9660 PathTo/palinux-0.5.iso /PALINUX
I then copy the content of '/PALINUX' into MySubdir (cd /PALINUX; find .
-depth | cpio -mpduv MySubdir).

I change palo Makefile to boot from a ramdisk (and not from NFS as default)
as follow:

# Native PARISC/Linux Project Bootstrap Code
#
# Copyright (C) 2000 Hewlett Packard (Paul Bame,
bame@puffin.external.hp.com)
# Copyright (C) 1999 Jason Eckhardt <jle@cygnus.com>
#                    Helge Deller <deller@gmx.de>
#                    Christopher Beard <cjbeard@thepuffingroup.com>
#                    Alex deVries <adevries@thepuffingroup.com>
#

# This is here temporarily for folks who still have the old linux makefile
ifneq ($(strip ${TOPDIR}),)
    PA=${TOPDIR}
endif

# here is one which should work for nearly everyone, unless they
# have a different name for their linux tree:
ifeq ($(strip ${PA}),)
    PA := $(shell pwd)/../linux
endif

export PA

# Choose at most one of RAMDISK or NFSROOT below
#
# Set RAMDISK to a ramdisk image to in order to load the ramdisk on the
# boot medium and make the default kernel command line to use it
#
RAMDISK = ${PA}/ramdisk.bin

#
# Set NFSROOT to the IP address of your NFS root server to make
# a kernel command line to use NFS root.  This is incompatible with
# RAMDISK above.  Though you can have both a ramdisk and an NFS root,
# as far as palo is concerned anyway, this Makefile doesn't help you
# do that and I'm not sure the kernel's very good at it right now either.
#
# NFSROOT = 10.10.10.2

ifneq ($(strip ${RAMDISK}),)
    PALOSTUFF=-r ${RAMDISK}
    ROOT=root=/dev/ram initrd=0/ramdisk
endif

ifneq ($(strip ${NFSROOT}),)
    PALOSTUFF=
    ROOT=root=/dev/nfs nfsroot=${NFSROOT}
endif
...


I then follow cvs/palo/README.html procedure to create a ISO9660
Bootable/Mountable CD-ROMS

In detail:
cp -f ~/source/linux/vmlinux MySubdir/boot
cp -f ~/source/linux/System.map MySubdir/boot
cp -f ~/palo/iplboot MySubdir/boot

I rebuild the iso image as follow in palo build subdir (logicaly
~/source/palo):
mkisofs -r -R -l -L -hide-rr-moved -o ./palinux.raw /=Mysubdir/
(as well as would do with xcdroast or gcombust)

And make image bootable with:
./palo/palo -k ~/source/linux/vmlinux -b iplboot \
-c '0/vmlinux ROOT=/ TERM=linux root=/dev/scd0' -C ./palinux.raw

Then burn the CD and boot it with cdrom drive at scsi id 0 (because of
/dev/scd0). Is it right?

The first test on B180 crash.

I then read some Questions and answers in mailing lists and saw that some
advises regarding kernel configuration.
I do so run a make menu config and obtain the following .config file:

#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set

#
# Code maturity level options
#
# CONFIG_EXPERIMENTAL is not set

#
# General options
#
# CONFIG_SMP is not set
# CONFIG_KWDB is not set
CONFIG_GSC=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_CHASSIS_LCD_LED=y

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# General setup
#
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_BINFMT_SOM=y
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set

#
# Parallel port support
#
CONFIG_PARPORT=y
# CONFIG_PARPORT_PC is not set
CONFIG_PARPORT_GSC=y
# CONFIG_PARPORT_OTHER is not set
# CONFIG_PARPORT_1284 is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y

#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_NETLINK is not set
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set

#
# SCSI low-level drivers
#
CONFIG_SCSI_LASI=y
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
CONFIG_LASI_82596=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_NET_SB1000 is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
# CONFIG_DE4X5 is not set
CONFIG_TULIP=y
# CONFIG_DGRS is not set
# CONFIG_EEPRO100 is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_8139TOO is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_HAMACHI is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Input core support
#
# CONFIG_INPUT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_HIL=y
CONFIG_SERIAL=y
# CONFIG_SERIAL_CONSOLE is not set
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=y
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_JOYSTICK is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_SYSV_FS_WRITE is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
CONFIG_NFS_FS=y
# CONFIG_NFS_V3 is not set
CONFIG_ROOT_NFS=y
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_MOUNT_SUBDIR is not set
# CONFIG_NCPFS_NDS_DOMAINS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_NLS is not set

#
# Sound Drivers
#
# CONFIG_SOUND is not set

#
# Console drivers
#

#
# Frame-buffer support
#
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_STI is not set
# CONFIG_FBCON_ADVANCED is not set
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set
# CONFIG_FBCON_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

Then I burn another CD and obtain something more interesting but not yet
satisfactory:

On B180:
...
Sendind BOOTP request....timeout!
...
VFS: Mounted root (iso9660 filesystem) readonly
Warning: unable to open initial consol

then it continue to load Linux but nothing could be seen. A CTRL ATL DEL is
well trap and the system reboot (it is not a normal behavior init do not run
on a HP workstation)
The PATH CON being GRAPHICS(0) have you some recommendation for this case ?

And why does it launch this BOOTP request 

On the C110:

the initial process start then the screen was clear some time (about 2
minutes) (I suspect it also launch the BOOTP request ?) then comes:
Init: version 2.78 booting
Init: entering runlevel: 2
Setting up ramdisk4096+0 records in
4096+0 records out
...
Writing superblocks and filesystem according information: done

And nothing more append.

For this case it sure init start at run level 2 (A CTRL ATL DEL is also well
trap and the system reboot).
But doesn't it give not a prompt? What do I wrong?

All advises are well come?

Thanks in advance for help,
	Joel

PS: At kernel compile time I notice something I am not use to see as
warning:
...
hppa-linux-gcc -D__KERNEL__ -I~/source/linux-20001218/include -Wall
-Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing
-D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls
-mschedule=7200 -mdisable-fpregs -fno-strict-aliasing -ffunction-sections
-c -o sysctl.o sysctl.c
In file included from ~/source/linux-20001218/include/linux/nfs_fs.h:17,
                 from sysctl.c:37:
~/source/linux-20001218/include/linux/sunrpc/debug.h:57:57: warning: nothing
can be pasted after this token
....

Some explanation?


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From - Thu Nov 08 21:14:48 2018
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From: Jes Sorensen <jes@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc and ptrace
Date: 19 Dec 2000 20:59:49 +0100
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To: Richard Hirst <rhirst@linuxcare.com>
Original-X-From: jes@lxplus015.cern.ch  Tue Dec 19 12:57:25 2000
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Xref: news.gmane.org gmane.linux.ports.parisc:8946

>>>>> "Richard" == Richard Hirst <rhirst@linuxcare.com> writes:

Richard> So, should I be fixing glibc (if removing that line is indeed
Richard> a fix), or should I be fixing our kernel source so the glibc
Richard> wrapper isn't needed?  ia64, for example seems to fix it in
Richard> the kernel, while sparc64 looks like it uses the glibc
Richard> wrapper.

I'd say fix it in the kernel if it's cheaper to do so. You can stick a
wrapper in glibc as well, but it sounds to be simpler to do in the
kernel.

Jes


From - Thu Nov 08 21:14:48 2018
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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Hi
Date: Wed, 12 May 1999 20:57:59 +0200
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To: parisc-linux@thepuffingroup.com
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I'd just like to introduce myself.  I've liberated a 715/33 Apollo from
use as a monitor stand and managed to retrieve all the pieces needed to
get it as far as a boot prom prompt.  It's got 56MB of RAM and a hard disc
of some description.  I've got it attached to the ethernet, though I have
no idea whether this is working right now.  I don't however have anything
to boot right now - apparently this disc was used for swap when this
workstations was running HP-UX in the dim distant past (you should see
the dust).

I have no previous experience of the HP architecture, but I'm a dab hand
at ARM assembler and I'm willing to learn.  Anyway, here I am with a
machine, ready to help.  

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Xref: news.gmane.org gmane.linux.ports.parisc:8948

On Tue, Dec 19, 2000 at 08:59:49PM +0100, Jes Sorensen wrote:
> >>>>> "Richard" == Richard Hirst <rhirst@linuxcare.com> writes:
> 
> Richard> So, should I be fixing glibc (if removing that line is indeed
> Richard> a fix), or should I be fixing our kernel source so the glibc
> Richard> wrapper isn't needed?  ia64, for example seems to fix it in
> Richard> the kernel, while sparc64 looks like it uses the glibc
> Richard> wrapper.
> 
> I'd say fix it in the kernel if it's cheaper to do so. You can stick a
> wrapper in glibc as well, but it sounds to be simpler to do in the
> kernel.

Kernel fix does seem more sensible, I just wonder if there is
a general move towards doing it one way rather than the other.

Richard


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>>>>> "Richard" == Richard Hirst <rhirst@linuxcare.com> writes:

Richard> On Tue, Dec 19, 2000 at 08:59:49PM +0100, Jes Sorensen wrote:
>>  I'd say fix it in the kernel if it's cheaper to do so. You can
>> stick a wrapper in glibc as well, but it sounds to be simpler to do
>> in the kernel.

Richard> Kernel fix does seem more sensible, I just wonder if there is
Richard> a general move towards doing it one way rather than the
Richard> other.

I don't see a trend, a kernel fix allows us to inline the syscall
which is always nice.

Jes


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] STI Rom address location
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John Marvin wrote:
...
> > btw, all info I've found about PDC_SYSTEM_MAP was in pdc.pdf, just
> > telling about the existence of such a procedure in chapter 2.2, but
> > there's no more info about it (while ALL other procedures are explained
> > in this book). This is just to get explained about the
> > pdc_system_map_find_mods params.
> 
> I don't have any documentation for PDC_SYSTEM_MAP either. I just used
> the HP-UX source for reference.

PDC_SYSTEM_MAP is Hversion specific. I do know it's documented in the
various firmware ERS's. I'm not aware those have been published yet.
Strike one. :^(

[ However, I see no reason why HP wouldn't allow firmware ERS's 
  for "legacy" platforms to be published. Cost/time to review/santize
  might be the only reason. And while a few of the ERS's are not very good
  (ie incomplete), still better than nothing. ]

It seems HP published key parts of the "I/O Architecture Control Document":
	http://devresource.hp.com/devresource/Docs/DocLib_Refs.html#archrefs

as "Part 2: Processor Dependent Code Procedures" (PDC.pdf). And those are
probably on parisc-linux Documentation website as well.
But as Xavier noted above, while mentioned, PDC_SYSTEM_MAP is not actually
documented in the PDC.pdf. :^(  Strike two.

PDC_SYSTEM_MAP is documented on page 467 (of 646) in the ioacd_v096.pdf.
I'll ask the owners of ioacd if "common" Hversion PDC calls could
be published as well. This might take a while though. :^(
I hope they were not intentionally excluded for some sane reason.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Alex deVries wrote:
> There's been some discussion on IRC about not always having to set the
> clock when in userspace.  I had a quick look at it, and it shouldn't be
> too hard.  We just need a parisc version of hwclock which calls the
> PDC_TOD functions.

CONFIG_GENRTC in fact does use PDC_TOD.
Randolph Chung had hwclock working for PXC-L/L2 machines and I tested it
on my c3k (32-bit) a few weeks back.
If it's broken, then it's a "recent" change.

grant


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From: =?iso-8859-1?Q?R=FCdiger?= Scholz <rscholz@hrzpub.tu-darmstadt.de>
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Subject: [parisc-linux] Problems with boot_admin prompt
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Hello everybody,

I have a hp 715/100, which works quite well with PARISC-Linux. Usually
it boots with tftp over my local network. So I switch the primary boot
path to lan at the boot_admin prompt.
Yesterday I tried to install the palinux-0.5.iso-Image on the harddisk.
I booted the machine over net and followed the instructions in
README.INSTALL. Then I partitioned the drive with fdisk. After
installing the Base-Package and the PALO-Bootloader, I rebooted the
machine.
But now the boot_admin prompt doesn't appear anymore, so I can't change
the boot path to scsi!

The Box boots over the network yet, but how can I access the boot_admin
prompt? All I get is a black screen, when I switch the machine on. I
used the Serial Console, because the STI-Console doesn't work for me
(Another question: Does anybody got a working STI-Con on such a box ?).

Can somebody help me?




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From: Helge Deller <deller@gmx.de>
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On Monday 18 December 2000 23:03, Karsten Merker wrote:
> On Sun, Dec 17, 2000 at 09:20:51PM +0100, Helge Deller wrote:
> > > $CONFIG_FB_STI is set to "y" as can be seen in .config, nonetheless
> > > CONFIG_FBCON_STI is not declared.
[snip]
> I had activated "Console drivers -> Frame buffer support -> Advanced low
> level driver options", and whenever this is selected, CONFIG_FBCON_STI is
> not defined. If I unselect it, everything is ok. 
[snip]

Ok, thanks a lot for your investigation. I hadn't realized that and since 
most of the developers use the default config, this problem has not shown up 
yet. 

> Has anybody tried to run Linux with serial console on a 715/100? When I
> boot a kernel without support for STICON but with serial console enabled
> (and console=ttyS0 as commandline parameter) the system crashes just after
> displaying the "kernel command line" (system console is still in
> "graphics" mode - does this make a difference?).

This doesn't happen on my 715/64, which is afaik nearly the same machine as 
yours. And, you don't need "console=ttyS0", but I don't think, that this is 
related to your problem.

> When using STICON instead, the console output works in principle, but
> there is pixel garbage throughout the screen (it looks like it is between
> the character cells) after the second "mode switch" (when the first line
> on the screen is "Console: switching to colour STI console 160x64"). I
> have seen a similar effect on a 712/80 when using STICON. 

Yes, this is a known problem - it happens here too -, but since some of the 
developers currently work on better STI-support this will get fixed in the 
future - and I think this problem was not there, before we merged with linus.

> The keyboard
> works on the 712/80 but is dead on the 715/100 (in both cases the keyboard
> is a ps/2 model, connected directly on the 712/80 and via the small
> external adaptor box on the 715/100).

Hmm, does the other end of this external adaptor on the /100 looks like a 
RJ45-connector? If yes, I assume, that you have a PS/2 keyboard on a 
HIL-adaptor and need the HIL keyboard driver, which should already be enabled 
in defconfig. And the HIL keyboard works for me...
If you could send me your bootlog I could take a closer look at it.

Greetings,

	Helge


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From: Patrick and Tammy Little <ptlittle@rose.net>
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I have pulled down the 386 cross-compile tool kit(precompiled) and linux
latest. I'm what you guys would consider a GREEN-horn at this. Following
the documentation that has been provided I've set up a drive, got it to
boot from the drive, built 2 kernels and I'm currently running the last
one, so if you needed a green-horn test, I qualify.
I'm still a little confused about this port/cross-compile deal though.
The moving over that is left to do, is it done by running stuff through
this cross-comp deal or is most everything that is being done still
C-code editing? Other words, do you need someone with time on there
hands or a C-code editor?
Is the STI-Console still meant to be a messege center only or
Interactive?
Is there anymore doc on how to use the dpkg-cross deal? The README left
me still foggy!
I bought this box with nothing on the hard drive so it was try
Parisc-Linux or buy HP-UX, that's why I am working at this so
hard.         Thanks for your time, Patrick


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is

<li> dynamic kernel stack and fix the handling of the initial stack frame.
        (<a href="mailto:Volunteer">Volunteer?</a>)

the work that i've just done?  if not, what does it mean?

if someone thinks it means dynamically growing the kernel stack, we can't do
this.

-- 
Revolutions do not require corporate support.


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Matthew Wilcox <matthew@wil.cx> writes:

> is
> 
> <li> dynamic kernel stack and fix the handling of the initial stack frame.
>         (<a href="mailto:Volunteer">Volunteer?</a>)
> 
> the work that i've just done?  if not, what does it mean?

Yes, the work that you've just done (along with the work Richard did
some time ago to make it so we weren't just mapping 0x10000000 of
stack space on exec).

> if someone thinks it means dynamically growing the kernel stack, we can't do
> this.

I don't know where the 'kernel' bit got put in to that item
... perhaps you should check CVS blame? :-)

-- 
David Huggins-Daines		-		dhd@eradicator.org


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Alex deVries wrote:
> 
> Just an update on three device drivers I'm vaguely working on.
> 
> I'm actually up for working on other various drivers, and am taking
> requests.  I do have quite a variety of hardware to test on.
> 
> 1. Harmony, the sound driver
> 
> Definitely some problems here, most are already documented but one
> notable one is that the sound chip on a 715/75 doesn't appear to be
> Harmony at all.  Does anyone by chance know what this is?

I tried to locate info on this and couldn't. Too many stale links.
Perhaps someone with better connections in/to Fort Collins might know.


> 3. SuperIO
> 
> I made an unsuccessful attempt to understand how SuperIO (the funky IO
> controller in C3k and J5k) PCI interrupts work.

I'm happy to help make interrupts work w/suckyio - it shouldn't be that hard.
They are definitely routed through an I/O SAPIC.
I'll try to figure out how.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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> I'd just like to introduce myself.  I've liberated a 715/33 Apollo from
> use as a monitor stand and managed to retrieve all the pieces needed to
> get it as far as a boot prom prompt.  It's got 56MB of RAM and a hard disc
> of some description.  I've got it attached to the ethernet, though I have
> no idea whether this is working right now.  I don't however have anything
> to boot right now - apparently this disc was used for swap when this
> workstations was running HP-UX in the dim distant past (you should see
> the dust).

I think you have the choice to either wait til Linux is bootable or get a
second hard disk and an HP-UX on it. The disks should be narrow SCSI so the
second disk shouldn't really be much of a problem.

> I have no previous experience of the HP architecture, but I'm a dab hand
> at ARM assembler and I'm willing to learn.  Anyway, here I am with a
> machine, ready to help.  

OK, first I propose you look at www.thepuffingroup.com/parisc and get just
about everything linked from the Documentation section. What is most important
to get a kernel working fast is acd.pdf (ARM), the runtime architecture document
and perhaps pdc and iodc descriptions.

I think it should be theoretically possible to put the disk in a supported
machine, cross-build a kernel and bootloader (oh yeah, perhaps you should
fix the problems with that first ;), put it back into the PARISC aso. but
just getting a version of HP-UX and a second disk seems easier to me.

	Philipp Rumpf


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> I'm still a little confused about this port/cross-compile deal though.
> The moving over that is left to do, is it done by running stuff through
> this cross-comp deal or is most everything that is being done still

no, we don't build cross-compiled debian packages... all the ones now
are compiled natively.

randolph
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Rod Smart wrote:
>     Hello.
> 
>     I have a C-180 RISC box, and it has a GRAPHICS(3) card installed.
> 
>     Running from the command menu during boot-up, then running the
> following command, I get this resul for graphics cards.
> 
>     running    IO
> 
>     GRAPHICS(0)    8/24    INTERNAL_EG_1280    built-in
>     GRAPHICS(3)    10/8    HPA 4071B_L2            GSC Slot 3

HCRX24 graphics card - 24-bit color.

> 
>     Ok now, I understand the GRAPHICS(0) one, thats the wierd looking
> connector on the back,

That's an "Enhanced Video Connector" which was supposed to become
an industry standard. Adapters for EVC to 15-pin are available:
Product Number   Part Number    Description
 A4167A1
                  8120-6862
                                EVC (F) to 15-pin (M)
 A4168A2
                  8120-6861
                                EVC (M) to 15-pin (F)
 A4169A3
                  8120-6863
                                15-pin (F) to 15-pin (F)


> but the GRAPHICS(3) has a DB-15 High Density (Std
> PC video) connector on the back, I'm wondering what this card is?

A4071B     Hyperdrive "B" 24 plane,supports           A4070-69508
           Video Out   (HCRX-24)

> 
>     I have looked on some web sites to find information on the
> accompanying A4331D monitor I have, but they said that the terminals for
> that monitor are BNC connectors, but nothing saying that its also comes
> as a DB-15HD connector.

You need a DB-15 to BNC cable - I think the card outputs SOG (Sync-on-Green)
by default. BNC is just the type of connector used to carry Red, Green, and
Blue signals.

>     Would anyone know if this is a spuuprted video card on the PALINUX
> system?

It's listed as a supported device for the C180 - so I would expect the
STI CON/FB drivers to support it (or eventually support it).

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Alex deVries wrote:
...
> I've taken mkp's initial work on superio.c and added some stuff, but in
> the end am confused by where we actually get the interrupt number from
> the card.  There's no such register in function 1 (where the interrupts
> ultimately end up) and both registers on function 0 and 2 return 0,
> which I don't think is right.

Why are you reading this out of a register? Which register?

IIRC, function 0 and 2 *should* return 0 in INTERRUPT_PIN configuration
register and thus the INTERRUPT_LINE configuration as well.
But since IOSAPIC driver (when invoked by LBA PCI code) munges the
INTERRUPT_LINE contents and puts the virtualized IRQ number in 
dev->irq for the drivers consumption, superio driver should
not be reading these configuration registers.

> I'd thought that PDC would have set this up.

PDC should only sets up the PCI INTERRUPT_LINE config register values
to indicate which IOSAPIC input *line* they are using. parisc-linux has
to map this value to an IRQ region and virtualize the dev->irq value.

> There's not much I can do at this point until we can have some of
> Grant's attention.

If what I wrote above doesn't make any sense, tell me where to
to find the code you are talking about and I can look at it.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Matthew Wilcox wrote:
> 
> is
> 
> <li> dynamic kernel stack and fix the handling of the initial stack frame.
>         (<a href="mailto:Volunteer">Volunteer?</a>)
> 
> the work that i've just done?  if not, what does it mean?
>
> if someone thinks it means dynamically growing the kernel stack, we can't do
> this.

Yes - I think I'm the guilty party - just strike it from the list.

grant


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Grant Grundler wrote:
> Alex deVries wrote:
> > I've taken mkp's initial work on superio.c and added some stuff, but in
> > the end am confused by where we actually get the interrupt number from
> > the card.  There's no such register in function 1 (where the interrupts
> > ultimately end up) and both registers on function 0 and 2 return 0,
> > which I don't think is right.
> 
> Why are you reading this out of a register? Which register?

I'm reading it out of the INTERRUPT_LINE register because that's how
'normal' PCI devices set their dev->irq value.  If you say that's the
right approach, I believe you.

> IIRC, function 0 and 2 *should* return 0 in INTERRUPT_PIN configuration
> register and thus the INTERRUPT_LINE configuration as well.

Ah, good.

> But since IOSAPIC driver (when invoked by LBA PCI code) munges the
> INTERRUPT_LINE contents and puts the virtualized IRQ number in
> dev->irq for the drivers consumption, superio driver should
> not be reading these configuration registers.

Okay... but I get zero in dev->irq already, so I'm not sure the IOSAPIC
driver is virtualizing them properly.

Grant, I'll email the driver to you, Grant, to have a look at.

Thanks for your help!

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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Hi Dave,

On Sun, Dec 17, 2000 at 02:41:39PM -0500, David Huggins-Daines wrote:
> Hi,
> 
> Just reading through the archives, I noticed you came upon my rather
> hackish IAOQ manipulation in signal.c.
> 
> If you guys need any explanation about the intent of that code please
> ask me.  (I'm back on the parisc-linux list now, BTW)

Welcome back! Feel free to fix anything I broke.

> I freely admit that it is bogus (in fact that's why the comment was
> there), not because I didn't know which part of IAOQ was front and
> which was back, but because:
> 
> (a) There are two different signal exit paths, one from interruptions,
>     one from system calls.  This complicates things *tremendously*.
>     However, exiting from a signal handler always goes via system
>     calls, and in that case, the stored IAOQ values are meaningless.
>     I probably should have removed all the meaningless frobbings of
>     the stored IAOQ, but ... well ... time passes, you become occupied
>     elsewhere, etc.

Right, the code as was worked ok for the syscall case but broke
for the interrupt case.  The problem is that following the signal
and call to sys_rt_sigreturn, you need to return to userland either
via an interrupt return path, or a syscall return path, depending on
where you were when the signal occurred.  There is now a test in
syscall.S for __NR_rt_sigreturn in order to implement that.

> (b) I don't understand what the processor actually does when you
>     restore IAOQ on exit from an interruption.  The HP documentation
>     is not written in a particularly lucid manner.
> 
> (c) Setting iaoq_back to iaoq_front + 4 is *not* the right answer
>     because you may have taken an interruption in a branch, or an insn
>     may have been nullified, etc.

Absolutely - that was the main problem with the code as it was.
Seting iaoq_back to iaoq_front + 4 is valid if you are starting up the
signal handler, and should be ok if the singal occurred while you
were blocked on a syscall.

> (d) I had about ten billion other things to do at the time and was
>     under lots of pressure to get "more important things" working...

Sure - the current code does work for me under various test cases, but
it did take days to get to that point.

Richard


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To: "M. Grabert" <xam@deathsdoor.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:8965

On Mon, Dec 18, 2000 at 01:15:42PM -0500, Alex deVries wrote:
> "M. Grabert" wrote:
> > The kernel starts booting, but the scsi driver (old Ncr)
> > reports some warnings/errors like
> > shared memory is not coherent (or so), failed to reset scsi bus,
> > irq probe failed etc...
> > 
> > the scsi driver finally recognizes my Quantum HD and
> > tries to boot from it (mount it)..
> > There is nothing like VFS: unable to mount blabla;
> > instead it runs in to an infinite loop of kernel oops,
> > it prints continously kernel stack/register traces
> > (seem to look all the same).
> 
> I talked to Richard Hirst about this a few hours ago, and it looks like
> there's a problem with the SCSI driver.  It's unclear how difficult it
> would be to get that going, but it certainly is possible to fix.

The following is from my 715/75, where the scsi driver works.  As Alex
said, the scsi driver has a problem on your machine, but not all the
messages indicate real problems.  At one time I had a cdrom attached
which didn't respond well to requests for synchronous working, and the
driver couldn't cope.

What devices do you have on your scsi bus?  Can you disconnect
everything except the Quantum HD as a test?

You can try booting with

	sim700=nodisc:0xff

in case it is a problem with disconnect/reselect, and you could
try

	sim700=nodisc:0xff,noneg:0xff

in case it is a probem with sync/async negotiation.


    SCSI subsystem driver Revision: 1.00
    sim700: Couldn't get consistent shared memory

    // That just indicates that we are using old hardware

    sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86

    // That line indicates it is a 53c700, and not a 53c710

    scsi0: Revision 0x0
    Post test1, istat 05, sstat0 00, dstat 84
    sim700: WARNING IRQ probe failed, (returned 0)

    // That WARNING IRQ... is expected on parisc

    scsi0: WARNING: target data areas are not dma coherent!

    // That again is just a warning, and nothing to worry about

    scsi0: test 1 completed ok.

    // That indicates the driver can talk to the chip, and the chip
    // can generate interrupts.

    scsi0 : LASI/Simple 53c7xx
      Vendor: HP        Model: HP35470A          Rev: 7 09
      Type:   Sequential-Access                  ANSI SCSI revision: 02
      Vendor: SEAGATE   Model: ST32430N          Rev: 0510
      Type:   Direct-Access                      ANSI SCSI revision: 02
      Vendor: MICROP    Model: 2112              Rev: 4024
      Type:   Direct-Access                      ANSI SCSI revision: 02
    Detected scsi tape st0 at scsi0, channel 0, id 3, lun 0
    st: bufsize 32768, wrt 30720, max init. buffers 4, s/g segs 16.
    Detected scsi disk sda at scsi0, channel 0, id 5, lun 0
    Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
    SCSI device sda: 4197405 512-byte hdwr sectors (2149 MB)
    Partition check:
     sda: sda1 sda2 sda3
    SCSI device sdb: 2051460 512-byte hdwr sectors (1050 MB)
     sdb: unknown partition table

Alex, you already have a full boot log for this machine.

Richard


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On Tue, Dec 19, 2000 at 03:25:34PM -0800, Grant Grundler wrote:
> Alex deVries wrote:
> > There's been some discussion on IRC about not always having to set the
> > clock when in userspace.  I had a quick look at it, and it shouldn't be
> > too hard.  We just need a parisc version of hwclock which calls the
> > PDC_TOD functions.
> 
> CONFIG_GENRTC in fact does use PDC_TOD.
> Randolph Chung had hwclock working for PXC-L/L2 machines and I tested it
> on my c3k (32-bit) a few weeks back.
> If it's broken, then it's a "recent" change.

Works for me on B180L (once I created /dev/rtc).  Kernel source as of
CVS 12 hours ago.

Richard


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> > Why are you reading this out of a register? Which register?
> 
> I'm reading it out of the INTERRUPT_LINE register because that's how
> 'normal' PCI devices set their dev->irq value.  If you say that's the
> right approach, I believe you.

INTERRUPT_PIN is pre-PCI plumbing view of the interrupt
INTERRUPT_LINE is sort of the PCI view of the interrupt at best
pci_dev->irq is the Linux view post all the plumbing and host goo



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On Tue, Dec 19, 2000 at 06:56:32PM -0800, Grant Grundler wrote:
> Why are you reading this out of a register? Which register?

The chip is so b0rken that it doesn't put its irq number in the standard
register -- reads return 0.  So the quirk code I wrote pulls the irq
number from a different register on the chip -- which i now believe to
be incorrect.

> IIRC, function 0 and 2 *should* return 0 in INTERRUPT_PIN configuration
> register and thus the INTERRUPT_LINE configuration as well.
> But since IOSAPIC driver (when invoked by LBA PCI code) munges the
> INTERRUPT_LINE contents and puts the virtualized IRQ number in 
> dev->irq for the drivers consumption, superio driver should
> not be reading these configuration registers.

That's OK, at least for the code I wrote, the quirk code is called in the
right place (ie before the iosapic code gets its hands on it) that if it can
find the right value and poke it back into dev->irq, the iosapic virtualising
code will deal with it correctly.

> If what I wrote above doesn't make any sense, tell me where to
> to find the code you are talking about and I can look at it.

i'd like to see this code too.  why not commit it to the tree?  it's not
like it works at the moment and things would get broken.

-- 
Revolutions do not require corporate support.


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Philipp Rumpf wrote:
> > I'd just like to introduce myself.  I've liberated a 715/33 Apollo from
> > use as a monitor stand and managed to retrieve all the pieces needed to
> > get it as far as a boot prom prompt.  It's got 56MB of RAM and a hard disc
> > of some description.  I've got it attached to the ethernet, though I have
> > no idea whether this is working right now.  I don't however have anything
> > to boot right now - apparently this disc was used for swap when this
> > workstations was running HP-UX in the dim distant past (you should see
> > the dust).
> 
> I think you have the choice to either wait til Linux is bootable or get a
> second hard disk and an HP-UX on it. The disks should be narrow SCSI so the
> second disk shouldn't really be much of a problem.

Mathew can also download and try to install the PA-mklinux.
I have this running on a 712/60 now. I suggest this because
I don't know how accessible HP-UX bits are to the general public.
HP-UX is usually distributed on CD-ROM these days.

Since the source is available for mk-linux, that would suppliment
the PA architecture documentation and might provide the kind of
implementation detail someone experienced in assembler could use.

grant

> 
> > I have no previous experience of the HP architecture, but I'm a dab hand
> > at ARM assembler and I'm willing to learn.  Anyway, here I am with a
> > machine, ready to help.  
> 
> OK, first I propose you look at www.thepuffingroup.com/parisc and get just
> about everything linked from the Documentation section. What is most importan
>   t
> to get a kernel working fast is acd.pdf (ARM), the runtime architecture docum
>   ent
> and perhaps pdc and iodc descriptions.
> 
> I think it should be theoretically possible to put the disk in a supported
> machine, cross-build a kernel and bootloader (oh yeah, perhaps you should
> fix the problems with that first ;), put it back into the PARISC aso. but
> just getting a version of HP-UX and a second disk seems easier to me.
> 
> 	Philipp Rumpf
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Enterprise Systems Technology Lab
+1.408.447.7253


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From: Alex deVries <adevries@linuxcare.com>
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Subject: Re: [parisc-linux] SuckyIO support
Date: Wed, 20 Dec 2000 11:54:37 -0500
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To: Matthew Wilcox <matthew@wil.cx>
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Matthew Wilcox wrote:
> The chip is so b0rken that it doesn't put its irq number in the standard
> register -- reads return 0.  So the quirk code I wrote pulls the irq
> number from a different register on the chip -- which i now believe to
> be incorrect.

I don't think that's right either...  register 6B is an IDE interrupt
routing register, not the interrupt itself.

If the iosapic system is supposed to remap the register, I don't think
it is and I don't know where this is supposed to happen.  I hope we can
do all of this using just a PCI quirk.

> i'd like to see this code too.  why not commit it to the tree?  it's not
> like it works at the moment and things would get broken.

I've committed it, and it definitely does not work, but I don't think
it'll break anything either.  This is mostly mkp's code.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] SuckyIO support
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Let me elaborate a bit on Alan's terse explanation.

Alan Cox wrote:
> INTERRUPT_PIN is pre-PCI plumbing view of the interrupt

PIN is the *output* signal used by the PCI device. Each PCI device
is defined to use none, or one of four available INT signals (A-D).
PIN is hardwired value to indicate which it is.

> INTERRUPT_LINE is sort of the PCI view of the interrupt at best

LINE is initialized by BIOS or platform knowledgable code.
LINE is the *input* signal to an interrupt controller.
The routing of Interrupt Lines is *platform dependent* and is
generally different for each PCI device.
ie INT-A for one device != INT-A for another

> pci_dev->irq is the Linux view post all the plumbing and host goo

In our case, it's the IRQ region plus IRQ offset right now.
I've proposed another IRQ scheme which would replace the math with
a lookup table. But we haven't done anything with it yet since
the region+offset is "good enough" for now.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] SuckyIO support
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Matthew Wilcox wrote:
> That's OK, at least for the code I wrote, the quirk code is called in the
> right place (ie before the iosapic code gets its hands on it) that if it can
> find the right value and poke it back into dev->irq, the iosapic virtualising
> code will deal with it correctly.

It won't. I just checked. :^(

lba_fixup_bus() invokes iosapic_fixup_irq() for each PCI device.
iosapic_fixup_irq() invokes iosapic_xlate_pin() to locate both the
INTERRUPT_LINE and parent IOSAPIC. xlate_pin reads the INTERRUPT_PIN
and *ignores* the INTERRUPT_LINE. This behavior has to remain in order
to support PAT PDC platforms (which do not initialize the PCI device).

I doubt we can use pci_quirks to fixup the dev->irq.
I've proposed to Alex to use a "bus devices" scheme (a' la LASI).
So some "central" code will manage IRQ routing for devices below suckyio.
I.e. suckyio will have it's own IRQ region and collectively manage
all three PCI functions as "one device".

This would be the first case in parisc-linux where we "stack" three
IRQ regions on top of each other: driver->suckyio->iosapic->CPU

glad I could help,
grant

Grant Grundler
Unix Systems Enablement Lab
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> In our case, it's the IRQ region plus IRQ offset right now.
> I've proposed another IRQ scheme which would replace the math with
> a lookup table. But we haven't done anything with it yet since
> the region+offset is "good enough" for now.

Providing dev->irq is a suitable size putting a pointer into it is also 
perfectly acceptable although it makes the error reports look odd. Which
reminds me that someday we need canonicalise_irq(irq) for reporting stuff
nicely cross arch


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Alan Cox wrote:
> > In our case, it's the IRQ region plus IRQ offset right now.
> > I've proposed another IRQ scheme which would replace the math with
> > a lookup table. But we haven't done anything with it yet since
> > the region+offset is "good enough" for now.
> 
> Providing dev->irq is a suitable size putting a pointer into

only for 32-bit ILP. 64-bit LP (hppa) can't do that.
"int" is only 32-bits for both. Good idea though.

HP-UX has used "intr_obj" (iirc, void *) since 10.x and probably before.
The idea of a lookup table (I mentioned it above) would be obsoleted by
dev->irq defined as void *.
Maybe 2.5 kernel could use void * for dev->irq?

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: glibc and ptrace
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On Tue, Dec 19, 2000 at 06:22:57PM +0000, Richard Hirst wrote:
> I have a problem with ptrace.  The ptrace syscall for PTRACE_PEEK*
> saves the result in *data (4th arg), whereas the man page says
> it returns the result as the return value, and the 4th arg is
> ignored.  userland things, like strace for example, expect the
> man page behaviour.  I assumed glibc should be providing a wrapper
> to translate from kernel to userland syntax, but our glibc doesn't
> appear to do so.

Turned out I had to fix glibc to use the wrapper on parisc.  This
means our strace source will be broken for new glibc builds.  I'll
fix strace once the glibc change propagates through.  If anyone
wants to fix their own strace for testing, just remove the raw_ptrace
stuff from strace/defs.h

Richard


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] parisc64 kernel and ret1 (gr29) setup
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Hi,
  I tried calling ptrace() from a 32 bit app on a 64 bit kernel, and
the kernel crashed.  sys_ptrace needs a 32 bit wrapper, but that is
a seperate issue (I think).

It died at sys_ptrace+0x28, where it tried to use ret1.
(ret1 = 00000000000517a1):

0000000000000000 <sys_ptrace>:
   0:   0f c2 12 c1     std  rp,-10(sr0,sp)
   4:   37 de 03 00     ldo 180(sp),sp
   8:   73 c5 3e 51     std r5,-d8(sp)
   c:   37 a5 3f 81     ldo -40(ret1),r5
  10:   73 c4 3e 61     std r4,-d0(sp)
  14:   08 1b 02 44     copy dp,r4
  18:   db 39 0f e0     extrd,s r25,63,32,r25
  1c:   73 c8 3e 31     std r8,-e8(sp)
  20:   73 c6 3e 41     std r6,-e0(sp)
  24:   73 c3 3e 71     std r3,-c8(sp)
  28:   73 b7 3f b1     std r23,-28(ret1)
  2c:   ef 40 2e 28     cmpib,*= 0,r26,748 <.L1098+0x7c>
  30:   34 08 3f ff     ldi -1,r8
  34:   d3 33 1e e8     extrw,s r25,23,24,r19
  38:   2b 60 00 00     addil 0,dp,%r1
                        38: R_PARISC_DLTIND21L  pidhash

At the moment we set up sp with "ldo TASK_SZ_ALGN+64(%r1),%r30" on syscall
entry.  For 64 bit presumably we should do something like:

	ldo     TASK_SZ_ALGN+80(%r1),%r30
	ldo	-16(%r30),%r29

Which gives 64 bytes for parameter saves, plus 16 bytes for rp+sp, and
initialises ret1.

Does that sound right?

Richard


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Subject: Re: [parisc-linux] parisc64 kernel and ret1 (gr29) setup
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On Thu, Dec 21, 2000 at 04:00:06PM +0000, Richard Hirst wrote:
> At the moment we set up sp with "ldo TASK_SZ_ALGN+64(%r1),%r30" on syscall
> entry.  For 64 bit presumably we should do something like:
> 
> 	ldo     TASK_SZ_ALGN+80(%r1),%r30
> 	ldo	-16(%r30),%r29
> 
> Which gives 64 bytes for parameter saves, plus 16 bytes for rp+sp, and
> initialises ret1.
> 
> Does that sound right?

does the 64-bit ABI relax the requirement for the stack to be 64-byte aligned?
if not, it should be ldo TASK_SZ_ALIGN+128(%r1), %r30

-- 
Revolutions do not require corporate support.


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] parisc64 kernel and ret1 (gr29) setup
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On Thu, Dec 21, 2000 at 08:57:23PM +0000, Matthew Wilcox wrote:
> On Thu, Dec 21, 2000 at 04:00:06PM +0000, Richard Hirst wrote:
> > At the moment we set up sp with "ldo TASK_SZ_ALGN+64(%r1),%r30" on syscall
> > entry.  For 64 bit presumably we should do something like:
> > 
> > 	ldo     TASK_SZ_ALGN+80(%r1),%r30
> > 	ldo	-16(%r30),%r29
> > 
> > Which gives 64 bytes for parameter saves, plus 16 bytes for rp+sp, and
> > initialises ret1.
> > 
> > Does that sound right?
> 
> does the 64-bit ABI relax the requirement for the stack to be 64-byte aligned?
> if not, it should be ldo TASK_SZ_ALIGN+128(%r1), %r30

Says "16 byte aligned", not 64.

Richard


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] Console
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We were doing some very dubious things with our console; I hope I've now
fixed them.

The problem was that we can't output from the serial port until we've
done all the GSC and LASI setup, which is very late in the boot sequence.
The current serial console code just guesses, and gets lucky on x86, that
it can output bytes to the serial port.  This crashes for us because it
assumes it can use outb when it should be using gsc_readb.

So I've moved the call to initialise the serial console to the serial
driver, after it does its own setup.  This makes much more sense (the
serial console code might now be simplifiable, I haven't checked).

Of course, we'd like to see a bit of output before we get to that point.
So we still register the PDC console, crappy as it is, very early on
in the boot sequence (slightly later now than before, but it wasn't
used up until that point anyway, because none of the console system
was activated).

However, if you just do that and don't frob the dmesg log (nasty, nasty!),
you get everything twice.  So I invented a new console flag, CON_BOOT.
the register_console() interface notices that the previous console was
CON_BOOT, removes it and doesn't display the log to that point as it
assumes you've already seen it on the boot console.

I hope other architectures can take advantage of this small piece of
infrastructure.  Ted, are you the console maintainer?

-- 
Revolutions do not require corporate support.


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On Wed, May 12, 1999 at 07:42:27PM +0000, Philipp Rumpf wrote:
> > I don't however have anything
> > to boot right now - apparently this disc was used for swap when this
> > workstations was running HP-UX in the dim distant past (you should see
> > the dust).

> I think you have the choice to either wait til Linux is bootable or get a
> second hard disk and an HP-UX on it. The disks should be narrow SCSI so the
> second disk shouldn't really be much of a problem.

That might be feasible.  Is there no netbooting software available?
I've used RARP, BOOTP and TFTP to load a sun3 kernel before and the
HP seems to be looking for a network host to respond.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Couple of things I forgot to mention...

you may now want to specify `console=ttyS0' in the palo makefile... though
thinking about it now, you may not need to.  I've only tried it with, not
without.

I haven't tested STI console with these changes.  I don't have a
monitor/kbd for my 712.  Someone should test this, and remove the calls
to pdc_console_die (and remove pdc_console_die altogether).

-- 
Revolutions do not require corporate support.


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] 64bit xgcc build failing
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The 64bit cross-gcc build(devel branch) is failing with the following error,

------------------------------------------------------------------------------
gcc -c -DCROSS_COMPILE -DIN_GCC    -g -O2 -W -Wall -Wwrite-strings 
-Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic 
-Wno-long-long  -DHAVE_CONFIG_H    -I. -I. -I/home/al-76/puffin/palinux/gcc/gcc
 -I/home/al-76/puffin/palinux/gcc/gcc/. -I/home/al-76/puffin/palinux/gcc/gcc/co
nfig -I/home/al-76/puffin/palinux/gcc/gcc/../include 
/home/al-76/puffin/palinux/gcc/gcc/varasm.c -o varasm.o
/home/al-76/puffin/palinux/gcc/gcc/varasm.c: In function 
`assemble_trampoline_template':
/home/al-76/puffin/palinux/gcc/gcc/varasm.c:1868: warning: assignment discards 
qualifiers from pointer target type
/home/al-76/puffin/palinux/gcc/gcc/varasm.c: In function `assemble_integer':  
/home/al-76/puffin/palinux/gcc/gcc/varasm.c:1910: parse error before `0'  
/home/al-76/puffin/palinux/gcc/gcc/varasm.c:1910: warning: statement with no 
effect
make[1]: *** [varasm.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory `/home/al-76/puffin/xc-build/gcc/gcc'
------------------------------------------------------------------------------

Any ideas?

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com



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On Wed, 20 Dec 2000, Richard Hirst wrote:

> The following is from my 715/75, where the scsi driver works.  As Alex
> said, the scsi driver has a problem on your machine, but not all the
> messages indicate real problems.  At one time I had a cdrom attached
> which didn't respond well to requests for synchronous working, and the
> driver couldn't cope.
> 
> What devices do you have on your scsi bus?  Can you disconnect
> everything except the Quantum HD as a test?

nothing except the harddisk! even the scsi-floppy is NOT connected

> You can try booting with
> 
> 	sim700=nodisc:0xff

done that, didn't work

> in case it is a problem with disconnect/reselect, and you could
> try
> 
> 	sim700=nodisc:0xff,noneg:0xff
>
> in case it is a probem with sync/async negotiation.

also done that, didn't work either ... the same problem as before :((((
the kernel recognizes the harddisk, then is clears the screen,
and tries to boot from /dev/sda3 (correct partition! otherwise it
would print VFS: unable to mount root partition (verified that)).
But then it runs into infinite loop of stack traces ...

sorry that i cannot provide a boot log :((((

greetings max



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To: Matthew Wilcox <matthew@wil.cx>
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On Thu, Dec 21, 2000 at 09:28:55PM +0000, Matthew Wilcox wrote:
> 
> Couple of things I forgot to mention...
> 
> you may now want to specify `console=ttyS0' in the palo makefile... though
> thinking about it now, you may not need to.  I've only tried it with, not
> without.

Yes, you do need `console=ttyS0' now.  Otherwise you get "cannot open
initial console" and then silence until the login prompt.

dmesg works nicely though :)

Richard


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 64 bit kernel crash with wrong r27 value
Date: Fri, 22 Dec 2000 11:39:50 +0000
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Hi,
  I just had a crash loading a kernel module; it was in schedule(),
but r27 (dp) was still pointing to the modules local data.
r2 referenced the syscall exit path.

My theory is that the syscall involved calling the module, which
would set dp to reference the modules local data, and the return path
had no cause to reload dp as that is always the callers responsibility.
So, I have added a loadgp to entry.S at syscall_exit:, which solved the
problem.

However, (a) I'm not sure this is the right place to loadgp - maybe
it should be in syscall.S, and (b) there may well be other places
where we need to do loadgp - eg. returning from interrupt.  Comments?

Didn't see this on 32 bit kernel, because kernel and modules all run on
the same dp value.  For 64 bit, the kernel and each module has its own
dp value.

Richard


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On Thu, Dec 21, 2000 at 11:39:34PM +0100, Karsten Merker wrote:
> It seems the "console=ttyS0" is the reason for the crash. To be sure, I
> have taken a fresh kernel tree (checkout from today) and compiled the
> kernel with the default configuration. It worked...

specifying `console=ttyS0' before the checkin i recently did would
definitely have caused exactly that crash.  it was trying to do an outb
because the serial driver wasn't properly configured.  since no 715 has
PCI, outb crashed & burned.

> The only difference to a working kernel is the additional kernel
> parameter. What I find strange in this case is the fact that giving
> "console=ttyS0" is mandatory on other systems - e.g. Linux/MIPS on a
> DECstation does not give you anything on the serial port unless you
> specify console=ttySx, even if serial console is the only option because
> no other console driver is compiled into the kernel.

Yeah, this is because our console handling code was on crack.  It should
work now...

-- 
Revolutions do not require corporate support.


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On Fri, Dec 22, 2000 at 11:19:12AM +0000, Richard Hirst wrote:
> Yes, you do need `console=ttyS0' now.  Otherwise you get "cannot open
> initial console" and then silence until the login prompt.
> 
> dmesg works nicely though :)

Yay :-)  I just committed a change to PALO which ought to make this work.
I must confess though, I'm not clear where it gets the CONFIG_ variables
from.  are they in the environment?

-- 
Revolutions do not require corporate support.


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Matthew Wilcox wrote:
> 
> On Thu, Dec 21, 2000 at 11:39:34PM +0100, Karsten Merker wrote:
> > It seems the "console=ttyS0" is the reason for the crash. To be sure, I
> > have taken a fresh kernel tree (checkout from today) and compiled the
> > kernel with the default configuration. It worked...
> 
> specifying `console=ttyS0' before the checkin i recently did would
> definitely have caused exactly that crash.  it was trying to do an outb
> because the serial driver wasn't properly configured.  since no 715 has
> PCI, outb crashed & burned.

Has that been fixed now?  Should serial on a 715/old work?  

(Also, you can have a 715 with a PCI bus if you have a GSC add on card)

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: pa reload problem
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> On Fri, Dec 08, 2000 at 08:07:23PM -0500, John David Anglin wrote:
> > It is my impression that the MEM would pass as a general_operand unless
> > the volatile flag is set.  It will pass GO_IF_LEGITIMATE_ADDRESS.  Thus,
> > the general_operand test doesn't look like it will work.
> 
> Your GO_IF_LEGITIMATE_ADDRESS will accept the UNSPEC?
> The mind boggles.  Why, then, is this strange beast its own insn?

I have done some more testing.

Modifying GO_IF_LEGITIMATE_ADDRESS and adding a general_operand test
to validate_equiv_mem doesn't look like it will work.  The fundamental
problem is that the MEM must pass the GO_IF_LEGITIMATE_ADDRESS test during
reload.  However, this is when we would like the UNSPEC to fail the
general_operand test.

Preventing the substitution of equivalent MEMs increases register pressure. 
Thus, it is desirable to allow substitutions where possible.  On the other
hand, the PA instruction can't handle all substitution possibilities.
Thus, even if all the different insns that handle MEMs in one way or
another were combined into a single insn, reload could still produce
something that wouldn't work.

For a given mode, pa.md has several different insns that for example
load memory to a register.  These exist as different insns because
the predicates (and code) differ.  Thus, it is not possible to substitute
the MEM from one insn into another.

I was able to modify print_operand to handle the UNSPEC beast and delete
the `ldw RT' insns for loading a PIC address.  However, I am not certain
that I can work all the insns into a single insn.  I am most concerned
about the index insns `{ldwx|ldw}'.

The simplest solution that I can think of is not to allow equivalent
MEMs on the PA at all (DONT_ALLOW_EQUIV_MEM?).  Since the problem doesn't
seem to happen that frequently given the number of registers available,
possibly this this is a reasonable approach.  What do you think?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Wed, May 12, 1999 at 01:00:04PM -0700, Grant Grundler wrote:
> Mathew can also download and try to install the PA-mklinux.
> I have this running on a 712/60 now. I suggest this because
> I don't know how accessible HP-UX bits are to the general public.
> HP-UX is usually distributed on CD-ROM these days.

Alas, no.  The 715/33 is the one machine that mklinux does not support;
I looked at that about 6 months ago.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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On Fri, Dec 22, 2000 at 11:01:08AM -0500, Alex deVries wrote:
> > specifying `console=ttyS0' before the checkin i recently did would
> > definitely have caused exactly that crash.  it was trying to do an outb
> > because the serial driver wasn't properly configured.  since no 715 has
> > PCI, outb crashed & burned.
> 
> Has that been fixed now?  Should serial on a 715/old work?  

Serial always worked, as did serial console.  Only if you specified
`console=ttyS0' would the Bad Things happen, because the serial console
didn't do a proper initialisation, it just hoped.  Now, the serial console
initialisation is done after the serial driver starts up, so all the
initialisation is done properly first.

> (Also, you can have a 715 with a PCI bus if you have a GSC add on card)

true... though i've never seen one.

-- 
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From - Thu Nov 08 21:14:51 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] dd and 2k transfers on A500
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Hi all,
2k transfers w/dd don't work. I think it was Richard Hirst who indicated
the same problem existed on 32-bit w/C3k. A500/c3k have the same I/O MMU.
I haven't been able to verify to problem with 32-bit kernel on c3k yet.

Half the attempts to "dd bs=2k" result in "garbage" data.

I'm using local disks on the A500 to do the following:
for i in 0 1 2 3 4 5 6 7 8 9; do dd if=/dev/sdd of=t$i \
bs=2k count=1; od -A x -t xC t$i > x$i; done

And then varied bs:
bs	count	corruption?
512	1	n
1k	1	n
2k	1	y
4k	1	n
6k	1	n
8k	1	n

1k	2	n
2k	2	y

Here's cksum output from 2k (count=1) output:
2984123064 7047 x0
3362192344 3584 x1
2984123064 7047 x2
3362192344 3584 x3
...

x0 compares correctly with the original data I pushed out to disk
(skipped the first 1k of vmlinux and then wrote 20k to /dev/sdd):
000000 20 34 18 05 e0 20 2e 22 20 34 28 05 e0 20 20 72
000010 20 34 38 05 e0 20 2f 2a 20 33 c8 03 e0 20 24 8a
000020 20 21 98 03 e0 20 2b fa 20 34 38 05 e0 20 24 9a
000030 20 34 38 05 e0 20 2b f2 20 24 78 03 e0 20 2a 3a
000040 20 35 18 05 e0 20 29 12 20 2c a8 05 e0 20 21 0a
...

x1 starts with data that matches x0 at +0x400:
000000 08 01 02 56 0b 93 0a 13 62 da 01 00 0e 93 12 80
000010 00 00 0d 64 00 01 0e 60 22 60 08 01 2b 66 40 00
000020 4a 77 07 88 22 a0 08 00 4a 7a 07 90 34 14 07 50
000030 4a 79 07 80 36 d3 01 00 0a b3 0a 13 34 18 00 06
000040 6b d4 3f 99 34 21 00 00 0a a1 0a 01 6b dc 3f 79
000050 6b c0 3f 89 6b c1 3f 91 6b c0 3f 71 e8 46 09 38
...

from x0 again:
000400 08 01 02 56 0b 93 0a 13 62 da 01 00 0e 93 12 80
000410 00 00 0d 64 00 01 0e 60 22 60 08 01 2b 66 40 00
000420 4a 77 07 88 22 a0 08 00 4a 7a 07 90 34 14 07 50
000430 4a 79 07 80 36 d3 01 00 0a b3 0a 13 34 18 00 06
000440 6b d4 3f 99 34 21 00 00 0a a1 0a 01 6b dc 3f 79
000450 6b c0 3f 89 6b c1 3f 91 6b c0 3f 71 e8 46 09 38
000460 6b d3 3f 81 00 04 18 60 4b c2 3e d9 e8 40 c0 00          


If SBA code mangled the address offset bits when it contructed the
virtual DMA, this could happen. But then I would expect a similar
behavior for 1k blocks and we don't see that.

It seems like we start reading from the wrong 1k block
on the disk - assuming the data is really coming from disk.
If so, I should be able to capture this with a SCSI analyzer.
I'll try that next week.

I very suspicous of generic kernel since the data is placed wrong
by a 1k offset, the same size linux uses internally.
SBA code deals with stuff in 4k (PAGESIZE) chunks and is unlikely
candidate for misplacing data by 1k.

Any ideas on what might be wrong?

Anyone have a 2.4.0-test10 x86 box running?
Could you try the above dd command out with 2k blocks?

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SuckyIO support
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On Tue, Dec 19, 2000 at 09:42:51AM +0000, Matthew Wilcox wrote:
> 
> Wow, this is a really sucky chip :-)
> 
> OK, here's a first stab at some support for it.  Could someone with a
> B/C/J `thousand' class machine please give it a try, and let me see the
> relevant portions of their bootlog?

See if this is a better quirk.

Index: drivers/pci/quirks.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/pci/quirks.c,v
retrieving revision 1.6
diff -u -p -r1.6 quirks.c
--- quirks.c	2000/11/10 21:43:18	1.6
+++ quirks.c	2000/12/23 09:10:55
@@ -234,6 +234,32 @@ static void __init quirk_vt82c598_id(str
 	pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
 }
 
+static void __init quirk_ns_87560(struct pci_dev *dev)
+{
+	static int count = 0; /* So we don't lose if they reuse their IDs. */
+	switch (dev->device)
+	{
+		case PCI_DEVICE_ID_NS_87415:
+		case PCI_DEVICE_ID_NS_87560_LIO:
+			count++;
+			break;
+		case PCI_DEVICE_ID_NS_87560_USB:
+			if (count != 2) {
+				count = 0;
+				break;
+			}
+			{
+				struct pci_dev *old_dev;
+				old_dev = pci_dev_b(dev->bus_list.prev);
+				old_dev->irq = dev->irq;
+				old_dev = pci_dev_b(old_dev->bus_list.prev);
+				old_dev->irq = dev->irq;
+				printk("Assigned IRQ %d to SuckyIO\n", dev->irq);
+			}
+			break;
+	}
+}
+
 /*
  *  The main table of quirks.
  */
@@ -269,6 +295,7 @@ static struct pci_fixup pci_fixups[] __i
 	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_AL,	PCI_DEVICE_ID_AL_M7101,		quirk_ali7101_acpi },
  	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82371SB_2,	quirk_piix3_usb },
 	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82371AB_2,	quirk_piix3_usb },
+	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_NS,	PCI_ANY_ID,	quirk_ns_87560 },
 	{ 0 }
 };
 

-- 
Revolutions do not require corporate support.


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Console
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On Thu, Dec 21, 2000 at 09:28:55PM +0000, Matthew Wilcox wrote:
> I haven't tested STI console with these changes.  I don't have a
> monitor/kbd for my 712.  Someone should test this, and remove the calls
> to pdc_console_die (and remove pdc_console_die altogether).

here's a patch which does this.  please let me know how this works out
for you.


Index: arch/parisc/kernel/pdc_cons.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/pdc_cons.c,v
retrieving revision 1.22
diff -u -p -r1.22 pdc_cons.c
--- pdc_cons.c	2000/12/21 21:04:20	1.22
+++ pdc_cons.c	2000/12/23 13:10:45
@@ -66,7 +66,7 @@ static void pdc_console_write(struct con
 		pdc_putc(*s++);
 }
 
-int pdc_console_wait_key(struct console *co)
+static int pdc_console_wait_key(struct console *co)
 {
 	int ch = 'X';
 	int status;
@@ -96,11 +96,6 @@ int pdc_getc(void)
 	return pdc_console_wait_key(NULL);
 }
 
-static int pdc_console_setup(struct console *co, char *options)
-{
-	return 0;
-}
-
 static struct console pdc_cons = {
 	name:		"ttyB",
 	write:		pdc_console_write,
@@ -108,19 +103,19 @@ static struct console pdc_cons = {
 	device:		NULL, 
 	wait_key:	pdc_console_wait_key,
 	unblank:	NULL,
-	setup:		pdc_console_setup,
+	setup:		NULL,
 	flags:		CON_BOOT|CON_PRINTBUFFER|CON_ENABLED,  // |CON_CONSDEV,
 	index:		-1,
 };
 
 static int pdc_console_initialized;
 
-void pdc_console_init(void)
+void __init pdc_console_init(void)
 {
 	if (pdc_console_initialized)
 		return;
-	++pdc_console_initialized;
-	
+	pdc_console_initialized = 1;
+
 	/* If the console is duplex then copy the COUT parameters to CIN. */
 	if (PAGE0->mem_cons.cl_class == CL_DUPLEX)
 		memcpy(&PAGE0->mem_kbd, &PAGE0->mem_cons, sizeof(PAGE0->mem_cons));
@@ -130,32 +125,6 @@ void pdc_console_init(void)
 	register_console(&pdc_cons);
 }
 
-
-/* Unregister the pdc console with the printk console layer */
-void pdc_console_die(void)
-{
-	extern unsigned long log_size; /* kernel/printk.c */
-
-	printk("Switching from PDC console\n");
-	if (!pdc_console_initialized)
-		return;
-	--pdc_console_initialized;
-
-	/* Don't repeat what we've already printed */
-	log_size = 0;
-
-#ifdef CONFIG_VT_CONSOLE
-	{
-	    /* fixme (needed?): Wait for console-tasklet to finish !*/
-	    extern struct tasklet_struct console_tasklet;
-    	    tasklet_schedule(&console_tasklet);
-	}
-#endif
-
-	unregister_console(&pdc_cons);
-}
-
-
 /*
  * Used for emergencies. Currently only used if an HPMC occurs. If an
  * HPMC occurs, it is possible that the current console may not be
@@ -172,7 +141,7 @@ void pdc_console_restart(void)
 	if (pdc_console_initialized)
 		return;
 
-	while ((console = console_drivers) != (struct console *)0)
+	while ((console = console_drivers) != NULL)
 		unregister_console(console_drivers);
 
 	log_size = 0;
@@ -180,4 +149,3 @@ void pdc_console_restart(void)
 	printk("Switched to PDC console\n");
 	return;
 }
-
Index: drivers/video/sticon-bmode.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/video/sticon-bmode.c,v
retrieving revision 1.7
diff -u -p -r1.7 sticon-bmode.c
--- sticon-bmode.c	2000/12/02 21:03:48	1.7
+++ sticon-bmode.c	2000/12/23 13:11:09
@@ -861,13 +861,7 @@ static void __init sti_try_rom(unsigned 
 	sti_init_graph(sti);
 
 	//sti_inq_conf(sti);
-#if !defined(SERIAL_CONSOLE)	
-	{ 
-	    extern void pdc_console_die(void);  
-	    pdc_console_die(); 
-	}
-#endif
-		
+
 	take_over_console(&sti_con, 0, MAX_NR_CONSOLES-1, 1);
 
 	/* sti_inq_conf(sti); */
Index: drivers/video/sticon.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/video/sticon.c,v
retrieving revision 1.9
diff -u -p -r1.9 sticon.c
--- sticon.c	2000/10/16 22:21:24	1.9
+++ sticon.c	2000/12/23 13:11:09
@@ -219,7 +219,6 @@ static int __init sti_init(void)
 {
 	printk("searching for word mode STI ROMs\n");
 	if (sti_init_roms()) {
-		pdc_console_die();
 		take_over_console(&sti_con, 0, MAX_NR_CONSOLES-1, 1);
 		return 0;
 	} else
Index: drivers/video/stifb.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/video/stifb.c,v
retrieving revision 1.2
diff -u -p -r1.2 stifb.c
--- stifb.c	2000/10/16 22:21:24	1.2
+++ stifb.c	2000/12/23 13:11:09
@@ -183,7 +183,6 @@ stifb_init(void)
 	fbgen_do_set_var(&disp.var, 1, &fb_info.gen);
 	fbgen_set_disp(-1, &fb_info.gen);
 	fbgen_install_cmap(0, &fb_info.gen);
-	pdc_console_die();
 	if (register_framebuffer(&fb_info.gen.info) < 0)
 		return -EINVAL;
 

-- 
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From: Jens Trzaska <j_trzaska@gmx.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] trouble booting from palinux-0.5.iso on 712/80
Date: Sat, 23 Dec 2000 16:14:15 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:8996

Hello!
Since yesterday i'm the owner of a HP 712/80 and i've searched along 
the net to find an OS which is able to run on this box. When i found
palinux i downloaded the palinux-0.5.iso. But the booting process
doesn't seem to be successful. In the readme it says that i should
get a login prompt...but i don't get the prompt. The system stops
when saying:
"Switching from PDC console"

Thats all. I have a 12x Plextor cdrom booting from scsi-id 6. I also
tried to boot it from scsi-id 0. The same problem. The system has 
32MB RAM and Boot Rom Version 1.6. Is that perhaps a too old Boot
Rom? I read that it is updateable but cannot find an updated
version on the HP homepage or somewhere else. Can someone tell me 
where i can get an update?
I would give you the complete dmesg but i don't know how to get it
out of that box...since i cannot do anything. Any idea if what
is wrong with that box?


Regards Jens


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] trouble booting from palinux-0.5.iso on 712/80
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To: Jens Trzaska <j_trzaska@gmx.net>
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On Sat, Dec 23, 2000 at 04:14:15PM +0100, Jens Trzaska wrote:
> Hello!
> Since yesterday i'm the owner of a HP 712/80 and i've searched along 
> the net to find an OS which is able to run on this box. When i found
> palinux i downloaded the palinux-0.5.iso. But the booting process
> doesn't seem to be successful. In the readme it says that i should
> get a login prompt...but i don't get the prompt. The system stops
> when saying:
> "Switching from PDC console"

This ought to be, but isn't, in the FAQ.  Could someone who knows more about
the 0.5 CD-ROM than I do write up the answer for the FAQ?

Basically, your kernel is using the wrong console device.  try editing the
command line to specify `console=tty0'.

-- 
Revolutions do not require corporate support.


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] trouble booting from palinux-0.5.iso on 712/80
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Jens Trzaska wrote:
> Since yesterday i'm the owner of a HP 712/80 and i've searched along
> the net to find an OS which is able to run on this box. When i found
> palinux i downloaded the palinux-0.5.iso. But the booting process
> doesn't seem to be successful. In the readme it says that i should
> get a login prompt...but i don't get the prompt. The system stops
> when saying:
> "Switching from PDC console"

Am I right in assuming:
- you're using a graphics head (not a serial console)
- you're using the built-in graphics, not an add on card?

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: "Bjoern A. Zeeb" <bzeeb+hplinux@zabbadoz.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] trouble booting from palinux-0.5.iso on 712/80
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On Sat, 23 Dec 2000, Matthew Wilcox wrote:

> On Sat, Dec 23, 2000 at 04:14:15PM +0100, Jens Trzaska wrote:
> > Since yesterday i'm the owner of a HP 712/80 and i've searched along
> > the net to find an OS which is able to run on this box. When i found
> > palinux i downloaded the palinux-0.5.iso. But the booting process
> > doesn't seem to be successful. In the readme it says that i should
> > get a login prompt...but i don't get the prompt. The system stops
> > when saying:
> > "Switching from PDC console"
>
> This ought to be, but isn't, in the FAQ.  Could someone who knows more about
> the 0.5 CD-ROM than I do write up the answer for the FAQ?
>
> Basically, your kernel is using the wrong console device.  try editing the
> command line to specify `console=tty0'.

Hi,

I do not know much about it but running this image on a 715/100.
I think he does not use serial console:
On the palinux-0.5.iso it always switches to serial console and you
do not see anything more on the screen. Please use a null modem
cable and plug it into first serial port of your 712 and to
another PC.  Then use cu, minicom, hyperterminal (for win32) or
some similar terminal program to see if boot and init fail.
If not you get a Login prompt on serial console and can install
and afterwards after another reboot setup networking (as described
in the readmes) and use ssh to connect to the box.
As far as I know no screen is supported on that image (never tried
it after installing).

hope that helps.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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Subject: Re: [parisc-linux] trouble booting from palinux-0.5.iso on 712/80
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Alex deVries wrote:
> 
> Jens Trzaska wrote:
> > Since yesterday i'm the owner of a HP 712/80 and i've searched along
> > the net to find an OS which is able to run on this box. When i found
> > palinux i downloaded the palinux-0.5.iso. But the booting process
> > doesn't seem to be successful. In the readme it says that i should
> > get a login prompt...but i don't get the prompt. The system stops
> > when saying:
> > "Switching from PDC console"
> 
> Am I right in assuming:
> - you're using a graphics head (not a serial console)
> - you're using the built-in graphics, not an add on card?

yep...a quit normal 14" monitor and a keyboard...
but the trick with the serial console works. I'm now working over 
the serial with minicom from my notebook(FreeBSD). That's o.k.
It seems to run without any Problems. ethernet is running and so on.
I think palinux is great work. :)

Regards Jens


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Some questions about the 715/50
Date: Sat, 23 Dec 2000 12:48:16 -0500
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Here's a few choice entries from the inventory scan on my lovable
715/50:

2. Scorpio Core BA (11) at 0xf082f000, versions 0x7, 0x0, 0x70, 0x0,
0x0        
3. Scorpio Core SCSI (10) at 0xf0825000, versions 0x7, 0x0, 0x71, 0x0,
0x0      
4. Scorpio Core LAN (802.3) (10) at 0xf0826000, versions 0x7, 0x0, 0x72,
0x0, 00
5. Scorpio Core HIL (10) at 0xf0821000, versions 0x7, 0x0, 0x73, 0x0,
0x0       
6. Scorpio Core RS-232 (10) at 0xf0823000, versions 0x7, 0x0, 0x75, 0x0,
0x0    
...
9. Scorpio Audio (10) at 0xf1000000, versions 0x7, 0x0, 0x7b, 0x0,
0x0          
10. Scorpio EISA BA (11) at 0xfc000000, versions 0x7, 0x0, 0x76, 0x0,
0x0       

Scorpio's a 715/old, and has two IO chips in it: WAX and Lasi. Scorpio
Jr. (715/33) and Scorpio Sr. (715/75) are identical.

My questions:

a. The docs say that WAX's HIL on a GSC (not GSC+) is at 0xf0201000, but
the HIL reported above is clearly in the ASP range.  Is there actually a
HIL controller on ASP? More importantly, how are the interrupts routed?

b. What on earth is that sound chip at 0xf1000000? Is that Cherry?

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Kirk Bresniker <kirkb@chrome.rose.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] A180 Ignition Howto
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| 
| 
| Alex asked me to post this...
| 
| My A180 arrived a couple of days ago.
| 
| Just like any other HP box there are loads of HP-UX docs but no
| information on the hardware at all. Grrr. HP. When will you ever
| learn?

Did you try out the online information? Try the following URL.
It has lots of answers to "How Do I ..." questions:

http:/eproducts.hp.com/A-Class/frame_service.html

| 
| The A180 has a builtin webconsole. On the back of the system unit
| there are two RJ45 connectors. One of them is regular ethernet
| (DEC2114x btw. Should be piece of cake to get running) and the other
| is for the webconsole.
| 
| According to the docs on HP's website the system should autodetect
| whether to use serial port or web as console. 

The autodectection is based on seeing LINK_OK on the webconsole port. 
If there is an active LAN attached, you will attach via the webconsole.
Note that the RS-232 hardware is the same whether you use the RS-232 
connection or the webified version. The only thing the LINK_OK does is
flip a mux.

Did you get you systems with a management card? It's handy if you did
since you'd be able to reset a hung system remotely. 

|                                                I was unable to get my
| HP 70096 serial console running, though. Then I discovered a jumper on
| the motherboard which could allegedly force it in either mode. I tried
| moving it to serial with no avail.

What cable were you using? The cable I have connected to my system 
is an HP 24542G RS-232 cable. Here is the pinout:

CPU		Peripheral
9-pin F		25-pin M
1 <------------- 4
2 <------------- 2
3 -------------> 3
4 --------+----> 5
	  |
	  +----> 6
5 <------------> 7
6 <----+-------- 20
       |
8 <----+
7 -------------> 8

| 
| Oh, well. Bugger. Then I decided to try out the webconsole. The
| interface defaults to 192.0.0.192. Clickety-clik. *Blam* the Java
| stuff in the webconsole nuked my Netscape. Grumble.

The docs say that Netscape 3.01 should be okay. 

KMB

--
+============================================================+
|       Kirk Bresniker    	(916) 785-5677		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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From: Jens Trzaska <j_trzaska@gmx.net>
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Subject: [parisc-linux] starting 712/80 without keyboard?
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Hello again!
Does anyone know if there is a possibility to start a hp 712/80 
without a keyboard plugged in? I cannot find an option in the
bootrom. It always says: 
	"Failed to initialize a keyboard, SYSTEM HALTED" 

If someone has a solution. That would be great...

Regards Jens


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Some questions about the 715/50
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On Sat, Dec 23, 2000 at 12:48:16PM -0500, Alex deVries wrote:
> Scorpio's a 715/old, and has two IO chips in it: WAX and Lasi. Scorpio
> Jr. (715/33) and Scorpio Sr. (715/75) are identical.

uh, no, it has Wax and Asp.  Lasi was a later chip.  It's very similar to
Lasi though.

> My questions:
> 
> a. The docs say that WAX's HIL on a GSC (not GSC+) is at 0xf0201000, but
> the HIL reported above is clearly in the ASP range.  Is there actually a
> HIL controller on ASP? More importantly, how are the interrupts routed?

The HIL controller is definitely on Asp.  The interrupt `just worked'
when i first stole phil blundell's hil driver he'd written for the hp300.

-- 
Revolutions do not require corporate support.


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] starting 712/80 without keyboard?
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On Sat, Dec 23, 2000 at 08:05:07PM +0100, Jens Trzaska wrote:
> Hello again!
> Does anyone know if there is a possibility to start a hp 712/80 
> without a keyboard plugged in? I cannot find an option in the
> bootrom. It always says: 
> 	"Failed to initialize a keyboard, SYSTEM HALTED" 

another thing which should be in the faq, but isn't.

serial console on the 712 is officially Not Supported.

however, you can do it, if you know what to type.  full details are in
the mailing list archives somewhere.

-- 
Revolutions do not require corporate support.


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From: Jens Trzaska <j_trzaska@gmx.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] starting 712/80 without keyboard?
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Matthew Wilcox wrote:
> 
> On Sat, Dec 23, 2000 at 08:05:07PM +0100, Jens Trzaska wrote:
> > Hello again!
> > Does anyone know if there is a possibility to start a hp 712/80
> > without a keyboard plugged in? I cannot find an option in the
> > bootrom. It always says:
> >       "Failed to initialize a keyboard, SYSTEM HALTED"
> 
> another thing which should be in the faq, but isn't.
> 
> serial console on the 712 is officially Not Supported.
> 
> however, you can do it, if you know what to type.  full details are in
> the mailing list archives somewhere.

That's not what i'm searching for. I do not need the serial console
nor the keyboard. I prefer using ssh. The problem is that i can't 
reboot the system from remote when there is no keyboard. I'm
searching for something like a normal award bios has...
'halt on no errors' or something like that. But it it looks as if
there is no option in the boot rom.

regards Jens


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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Some questions about the 715/50
Date: Sat, 23 Dec 2000 17:27:47 -0500
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Matthew Wilcox wrote:
> 
> On Sat, Dec 23, 2000 at 12:48:16PM -0500, Alex deVries wrote:
> > Scorpio's a 715/old, and has two IO chips in it: WAX and Lasi. Scorpio
> > Jr. (715/33) and Scorpio Sr. (715/75) are identical.
> 
> uh, no, it has Wax and Asp.  Lasi was a later chip.  It's very similar to
> Lasi though.

I actually meant to type ASP, but the letters L-A-S-I came out of my
fingers.


> > My questions:
> > a. The docs say that WAX's HIL on a GSC (not GSC+) is at 0xf0201000, but
> > the HIL reported above is clearly in the ASP range.  Is there actually a
> > HIL controller on ASP? More importantly, how are the interrupts routed?
> The HIL controller is definitely on Asp.  The interrupt `just worked'
> when i first stole phil blundell's hil driver he'd written for the hp300.

So that's interesting... the LASI ERS says nothing about there being a
HIL controller, so the HIL controller must have been dropped in the
ASP->Lasi transition.

So here's the keyboard and serial situation on older machines:

Model               IO Chips      Keyboard       Serial
==========================================================
712     Gecko       Lasi          PS/2 on Lasi   1 on Lasi
715/old Scorpio     ASP, Wax      HIL on ASP     2 on ASP
725     Spectra     ASP, Wax      HIL on ASP     2 on ASP
715/new Mirage      Lasi, Wax     HIL on Wax     1 on Lasi, 1 on Wax

I'm not sure how much Wax stuff is actually running for HIL or Serial.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] starting 712/80 without keyboard?
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Jens Trzaska wrote:
> > serial console on the 712 is officially Not Supported.
> > 
> > however, you can do it, if you know what to type.  full details are in
> > the mailing list archives somewhere.
> 
> That's not what i'm searching for. I do not need the serial console
> nor the keyboard.

What willy was trying to say was the system will boot w/o keyboard
if you change the PDC/BOOT_ADMIN console path to serial port.
Mail search tool is at puffin.external.hp.com/cgi-bin/mailgrep.
Try looking for "conspath" or "ISL" if "serial console" gets too
many hits.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:14:53 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SuckyIO support
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On Wed, Dec 20, 2000 at 10:24:36AM -0800, Grant Grundler wrote:
> Matthew Wilcox wrote:
> > That's OK, at least for the code I wrote, the quirk code is called in the
> > right place (ie before the iosapic code gets its hands on it) that if it can
> > find the right value and poke it back into dev->irq, the iosapic virtualising
> > code will deal with it correctly.
> 
> It won't. I just checked. :^(
> 
> lba_fixup_bus() invokes iosapic_fixup_irq() for each PCI device.
> iosapic_fixup_irq() invokes iosapic_xlate_pin() to locate both the
> INTERRUPT_LINE and parent IOSAPIC. xlate_pin reads the INTERRUPT_PIN
> and *ignores* the INTERRUPT_LINE. This behavior has to remain in order
> to support PAT PDC platforms (which do not initialize the PCI device).

To my mind, we're doing this backwards.  What the current code tries to do
is recover from a situation where the generic PCI code has been run over
a bus which hasn't been configured by the POST -- and in the process we
lose any work done by the quirk code.  What I _think_ we should be doing
instead is doing our own run over the PCI bus first before the generic
code gets a look at it, and sorting out the interrupt routing there.
Then we can write the appropriate values into INTERRUPT_LINE, which the
generic PCI bus scan code will pick up and the quirk code will propogate
it into the other functions.

> I doubt we can use pci_quirks to fixup the dev->irq.
> I've proposed to Alex to use a "bus devices" scheme (a' la LASI).
> So some "central" code will manage IRQ routing for devices below suckyio.
> I.e. suckyio will have it's own IRQ region and collectively manage
> all three PCI functions as "one device".

We can do that.  But we don't _need_ to, all these devices are capable of
sharing one IRQ without further interrupt decoding being done.  I'm not
sure we want to do it -- extra latency and more code versus more interrupt
handers being called.

-- 
Revolutions do not require corporate support.


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Matthew Wilcox wrote:
> On Wed, Dec 20, 2000 at 10:24:36AM -0800, Grant Grundler wrote:
...
> > xlate_pin reads the INTERRUPT_PIN and *ignores* the INTERRUPT_LINE.
...
> To my mind, we're doing this backwards.  What the current code tries to do
> is recover from a situation where the generic PCI code has been run over
> a bus which hasn't been configured by the POST -- and in the process we
> lose any work done by the quirk code.

INTERRUPT_PIN is zero for function 0 and 1. And according to PCI spec,
suckyio function 0 and 1 can't won't generate interrupts regardless
of what's in INTERRUPT_LINE.
I don't want to write/modify/support code that implies otherwise.

> What I _think_ we should be doing
> instead is doing our own run over the PCI bus first before the generic
> code gets a look at it, and sorting out the interrupt routing there.

We'll end duplicating much of what's in the generic PCI code basically.
You can understand why I might be less than enthusiastic about this idea.

> Then we can write the appropriate values into INTERRUPT_LINE, which the
> generic PCI bus scan code will pick up and the quirk code will propogate
> it into the other functions.

For function 2, the proper value (0) *is* already in INTERRUPT_LINE.
And because of the INTERRUPT_PIN behavior, I'd like to discourage
propagating config values from function 2 into other suckyio functions.

> > So some "central" code will manage IRQ routing for devices below suckyio.
...
> We can do that.  But we don't _need_ to, all these devices are capable of
> sharing one IRQ without further interrupt decoding being done.

Yeah - you might be right : Sub-devices will share one IRQ line.
Using an IRQ region only makes sense if we can read some register and
uniquely determine which device(s) generated the interrupt(s). But this
is more an implementation detail than design corner stone.

Regardless, I'd still like to see a central code determine which IRQ line
is used and advertise devices so other drivers can claim them. ie this
suckyio code would propogate the virtualized func2 dev->irq to sub-devices
and manage all three suckyio functions as one device like LASI.

thanks,
grant


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On Mon, Dec 25, 2000 at 11:16:24PM -0800, Grant Grundler wrote:
> INTERRUPT_PIN is zero for function 0 and 1. And according to PCI spec,
> suckyio function 0 and 1 can't won't generate interrupts regardless
> of what's in INTERRUPT_LINE.
> I don't want to write/modify/support code that implies otherwise.

I thought it was understood that this device was not PCI-conforming?
That it did generate interrupts for functions 0 and 1.  Could we nail
down exactly _how_ this device generates interrupts for the serial & ide
ports?  I can see a few possibilities:

(1) They are only generated on the CPUINT pin.
(2) They're generated on INTD# just like USB is
(3) They're routable to other PCI pins within the device (i doubt it,
    i can't see any hint of this in the spec).
(4) The interrupts are generated but they're not routed to anywhere the
    cpu will ever get notified about, so we have to use a polling driver.
    This would seriously suck.

if it's (1), what is CPUINT tied to?  does it have its own connection to
the IOSAPIC?  Is it connected to the PCI bus somehow?

> We'll end duplicating much of what's in the generic PCI code basically.
> You can understand why I might be less than enthusiastic about this idea.

Yes.  OK, better idea: we can do the quirk fixup in the PCI_FIXUP_FINAL
pass instead of the PCI_FIXUP_HEADER pass.  This is called after the bus
fixup code has set ->irq.  Of course, this might be completely the wrong
thing to do... I really need to know the answer to the above question.

-- 
Revolutions do not require corporate support.


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Matthew Wilcox wrote:
> On Mon, Dec 25, 2000 at 11:16:24PM -0800, Grant Grundler wrote:
> > INTERRUPT_PIN is zero for function 0 and 1. And according to PCI spec,
> > suckyio function 0 and 1 can't won't generate interrupts regardless
> > of what's in INTERRUPT_LINE.
> > I don't want to write/modify/support code that implies otherwise.
> 
> I thought it was understood that this device was not PCI-conforming?

Absolutely correct.

> That it did generate interrupts for functions 0 and 1.

Not directly. AFAICT, subdevices can only generate interrupts via 8259
which lives on function 1. And it looks like *none* of the functions
under suckyio implement INTERRUPT_PIN register. *sigh*

The INTERRUPT_LINE cfg register just happens to live under function 2
but could live in any of the three functions. Suckyio provides this
register merely as a convience to the BIOS/OS programmers.

> Could we nail
> down exactly _how_ this device generates interrupts for the serial & ide
> ports?
...

IRQs for all devices we care about are routed through the on-chip 8259's.
Master 8259 output is routed to INTERRUPT_LINE 0 of the parent IOSAPIC.
I can't tell if that's through CPUINT or INT[A-D] or what.

BTW, I suggest suckyio get it's own IRQ region to manage the 8259's.
Here are more notes:

 *      Most interrupt sources can be routed (or mapped) to interrupt pins on
 *      the 8259.  The available pins are (15-14, 12-9, 7-3, 1).  The following
 *      pins are dedicated.
 *
 *              Timer Out0        Channel 0
 *              8259 cascade      Channel 2
 *              Real-Time Clock   Channel 8
 *              Coprocessor Error Channel 13
 *
 *
 *      There are only 6 interrupt sources supported at this time.  These
 *      take up all the available interrupt sources on the master 8259.  The
 *      slave mode code has not been tested completely because we do not use
 *      it.  Note that the interrupt sources are given fixed interrupt routing.


FYI - The 8259 "fixed" routing used by HPUX is below.
Though I have the impression PNP code could be used to assign
IRQ lines if one doesn't want another LASI-like IRQ scheme.

   switch (obj->suio_device_id) {
      case SUPERIO_ID_UART1:
        obj->suio_irq = 3;
        break;

      case SUPERIO_ID_UART2:
        obj->suio_irq = 4;
        break;

      case SUPERIO_ID_FDC:
        obj->suio_irq = 6;
        break;

      case SUPERIO_ID_PARALLEL:
        obj->suio_irq = 5;
        break;

      case SUPERIO_ID_USB:
        obj->suio_irq = 1;
        break;

      case SUPERIO_ID_IDE:
        obj->suio_irq = 7;       /* XXX IDE has two channels? */
        break;

      default:
        VASSERT(0 == 1);
    }


> > We'll end duplicating much of what's in the generic PCI code basically.
> > You can understand why I might be less than enthusiastic about this idea.
> 
> Yes.  OK, better idea: we can do the quirk fixup in the PCI_FIXUP_FINAL
> pass instead of the PCI_FIXUP_HEADER pass.  This is called after the bus
> fixup code has set ->irq.  Of course, this might be completely the wrong
> thing to do... I really need to know the answer to the above question.

This does sound better given suckyio doesn't support INTERRUPT_PIN.

The fixup code could use Function 2 INTERRUPT_LINE to determine which
iosapic input line is being used (instead of assuming line 0). I'm thinking
we need to add another iosapic_fixup()-like interface so PCI quirks code
will correctly register suckyio's INTERRUPT_LINE. I'm trying to keep the
method iosapic virtualizes IRQs with private to iosapic.c.

thanks,
grant


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Linuxen, 

| 
| Incidentally, Christopher Beard told me over lunch that he got the kernel
| building under HPUX, which would solve the linking problems we were
| worried about.
| 

I have been kibbitzing your efforts and have also been building the kernel
under HP-UX 10.20. I actually ran into a problem with gcc 2.8.1 generating
code that wouldn't assemble. I traced the problem to re-definition of .SUBSPA
parameters and hacked gas to ignore the problem. One question I have is 
what are you configuring into the compile? When all was said and done I was
able to leave in only SCSI and serial and generate all the objects.

KMB
--
+============================================================+
|       Kirk Bresniker    	(916) 785-5677		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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So I'm able to reproduce the problem on c3k/32-bit.

Grant Grundler wrote:
> It seems like we start reading from the wrong 1k block
> on the disk - assuming the data is really coming from disk.
> If so, I should be able to capture this with a SCSI analyzer.
> I'll try that next week.

Captured the incoming data w/SCSI analyzer and it's correct.
We are reading the correct data from disk but doesn't match what
ends up in the "bad" versions of the destination file. 

Another data point: while every other dd bs=2k gets corrupted, it's
every fourth transfer for dd bs=2560/3k/3584.
data corruption seems to occur when size hits/crosses 4k alignment.

> I very suspicous of generic kernel since the data is placed wrong
> by a 1k offset, the same size linux uses internally.

1k could just be an artifact of the scatter/gather list handed
to SBA code and SBA code is botching the merging of entries somehow.
I don't want to say this is an SBA bug until I find it.
But it looks alot more like it now. :^(

SCSI analyser output is appended in case anyone is curious.
Note I've programmed the analyzer to only capture the first 8 DATA
and ignore the rest.  Also note there are *no* filesystem writes.
The filesystem I'm dumping the data to is on the same SCSI bus.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


SCSI STATE  -  State Listing


Label    > DATA_   Time        Phase  SCSI mnemonic
Base     >  Hex  Relative                        Hex
__________ _____ _________ ________________________________________________

   -131     0080           Arbitrate ID=07
   -130     00A0  2.592 us Select Atn ID=05
   -129     00C0  3.520 us Msgout Atn Identify Disconnect, Logical=0
   -128     0020  1.424 us Msgout Atn Simple Queue Tag=37H
   -127     0037  1.000 us Msgout 37H
   -126     0028  3.472 us Commd  Read (10 byte)
   -125     0000    624 ns Commd  Lu=0
   -124     0000    432 ns Commd  Logical Block Addr=00000000H
   -123     0000    424 ns Commd
   -122     0000    424 ns Commd
   -121     0000    424 ns Commd
   -120     0000    424 ns Commd
   -119     0000    424 ns Commd  Transfer Length=0004H
   -118     0004    424 ns Commd
   -117     0000    424 ns Commd
   -116     0004  5.344 us Msg_in Disconnect
   -115     0000    856 ns Bus Free
   -114     0020  16.76 ms Arbitrate ID=05
   -113     00A0  1.536 us Reselect ID=07
   -112     0080  13.62 us Msg_in Identify No Disconnect Logical=0
   -111     0020    864 ns Msg_in Simple Queue Tag=37H
   -110     0037  4.976 us Msg_in 37H
   -109     3420  2.192 us Dat_in 3420H   DBP1=0 DBP=0
   -108     0518     56 ns Dat_in 0518H   DBP1=1 DBP=1
   -107     20E0     48 ns Dat_in 20E0H   DBP1=0 DBP=0
   -106     222E     48 ns Dat_in 222EH   DBP1=1 DBP=1
   -105     3420     48 ns Dat_in 3420H   DBP1=0 DBP=0
   -104     0528     56 ns Dat_in 0528H   DBP1=1 DBP=1
   -103     20E0     48 ns Dat_in 20E0H   DBP1=0 DBP=0
   -102     7220     48 ns Dat_in 7220H   DBP1=1 DBP=0
   -101     0000  67.28 us Status Good
   -100     0000  4.336 us Msg_in Command Complete
    -99     0000    856 ns Bus Free
    -98     0080  356.4 ms Arbitrate ID=07
    -97     00A0  2.616 us Select Atn ID=05
    -96     00C0  3.592 us Msgout Atn Identify Disconnect, Logical=0
    -95     0020  1.352 us Msgout Atn Simple Queue Tag=39H
    -94     0039    976 ns Msgout 39H
    -93     0028  3.472 us Commd  Read (10 byte)
    -92     0000    552 ns Commd  Lu=0
    -91     0000    424 ns Commd  Logical Block Addr=00000000H
    -90     0000    424 ns Commd
    -89     0000    424 ns Commd
    -88     0000    424 ns Commd
    -87     0000    432 ns Commd
    -86     0000    424 ns Commd  Transfer Length=0004H
    -85     0004    424 ns Commd
    -84     0000    424 ns Commd
    -83     0004  5.440 us Msg_in Disconnect
    -82     0000    856 ns Bus Free
    -81     0020  3.001 ms Arbitrate ID=05
    -80     00A0  1.488 us Reselect ID=07
    -79     0080  13.59 us Msg_in Identify No Disconnect Logical=0
    -78     0020    832 ns Msg_in Simple Queue Tag=39H
    -77     0039  4.992 us Msg_in 39H
    -76     3420  2.184 us Dat_in 3420H   DBP1=0 DBP=0
    -75     0518     48 ns Dat_in 0518H   DBP1=1 DBP=1
    -74     20E0     56 ns Dat_in 20E0H   DBP1=0 DBP=0
    -73     222E     48 ns Dat_in 222EH   DBP1=1 DBP=1
    -72     3420     48 ns Dat_in 3420H   DBP1=0 DBP=0
    -71     0528     48 ns Dat_in 0528H   DBP1=1 DBP=1
    -70     20E0     56 ns Dat_in 20E0H   DBP1=0 DBP=0
    -69     7220     48 ns Dat_in 7220H   DBP1=1 DBP=0
    -68     0000  67.21 us Status Good
    -67     0000  4.312 us Msg_in Command Complete
    -66     0000    856 ns Bus Free
    -65     0080  350.4 ms Arbitrate ID=07
    -64     00A0  2.592 us Select Atn ID=05
    -63     00C0  3.512 us Msgout Atn Identify Disconnect, Logical=0
    -62     0020  1.424 us Msgout Atn Simple Queue Tag=3BH
    -61     003B  1.000 us Msgout 3BH
    -60     0028  3.480 us Commd  Read (10 byte)
    -59     0000    624 ns Commd  Lu=0
    -58     0000    424 ns Commd  Logical Block Addr=00000000H
    -57     0000    424 ns Commd
    -56     0000    424 ns Commd
    -55     0000    424 ns Commd
    -54     0000    432 ns Commd
    -53     0000    424 ns Commd  Transfer Length=0004H
    -52     0004    424 ns Commd
    -51     0000    424 ns Commd
    -50     0004  5.336 us Msg_in Disconnect
    -49     0000    856 ns Bus Free
    -48     0020  8.956 ms Arbitrate ID=05
    -47     00A0  1.544 us Reselect ID=07
    -46     0080  13.62 us Msg_in Identify No Disconnect Logical=0
    -45     0020    880 ns Msg_in Simple Queue Tag=3BH
    -44     003B  5.064 us Msg_in 3BH
    -43     3420  2.184 us Dat_in 3420H   DBP1=0 DBP=0
    -42     0518     56 ns Dat_in 0518H   DBP1=1 DBP=1
    -41     20E0     48 ns Dat_in 20E0H   DBP1=0 DBP=0
    -40     222E     48 ns Dat_in 222EH   DBP1=1 DBP=1
    -39     3420     48 ns Dat_in 3420H   DBP1=0 DBP=0
    -38     0528     56 ns Dat_in 0528H   DBP1=1 DBP=1
    -37     20E0     48 ns Dat_in 20E0H   DBP1=0 DBP=0
    -36     7220     48 ns Dat_in 7220H   DBP1=1 DBP=0
    -35     0000  67.48 us Status Good
    -34     0000  4.312 us Msg_in Command Complete
    -33     0000    784 ns Bus Free
    -32     0080  354.2 ms Arbitrate ID=07
    -31     00A0  2.592 us Select Atn ID=05
    -30     00C0  3.536 us Msgout Atn Identify Disconnect, Logical=0
    -29     0020  1.400 us Msgout Atn Simple Queue Tag=3DH
    -28     003D  1.000 us Msgout 3DH
    -27     0028  3.472 us Commd  Read (10 byte)
    -26     0000    632 ns Commd  Lu=0
    -25     0000    424 ns Commd  Logical Block Addr=00000000H
    -24     0000    424 ns Commd
    -23     0000    424 ns Commd
    -22     0000    424 ns Commd
    -21     0000    424 ns Commd
    -20     0000    424 ns Commd  Transfer Length=0004H
    -19     0004    432 ns Commd
    -18     0000    424 ns Commd
    -17     0004  5.312 us Msg_in Disconnect
    -16     0000    776 ns Bus Free
    -15     0020  5.147 ms Arbitrate ID=05
    -14     00A0  1.496 us Reselect ID=07
    -13     0080  13.67 us Msg_in Identify No Disconnect Logical=0
    -12     0020    848 ns Msg_in Simple Queue Tag=3DH
    -11     003D  4.968 us Msg_in 3DH
    -10     3420  2.208 us Dat_in 3420H   DBP1=0 DBP=0
     -9     0518     48 ns Dat_in 0518H   DBP1=1 DBP=1
     -8     20E0     48 ns Dat_in 20E0H   DBP1=0 DBP=0
     -7     222E     48 ns Dat_in 222EH   DBP1=1 DBP=1
     -6     3420     56 ns Dat_in 3420H   DBP1=0 DBP=0
     -5     0528     48 ns Dat_in 0528H   DBP1=1 DBP=1
     -4     20E0     48 ns Dat_in 20E0H   DBP1=0 DBP=0
     -3     7220     48 ns Dat_in 7220H   DBP1=1 DBP=0
     -2     0000  67.51 us Status Good
     -1     0000  4.304 us Msg_in Command Complete
      0     0000    864 ns Bus Free

Time Printed: 26 Dec 2000 14:30:36  ---  Time Acquired: 26 Dec 2000 14:26:37


From - Thu Nov 08 21:14:53 2018
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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Same boot problem on a 9000/720/50 HP machine as on 712/60 of Niskanen
Date: Wed, 27 Dec 2000 02:07:11 +0100
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On my 9000/720 (I have it since one week) I have the same problem
booting the CD 0.5
or
a selfbuild kernel. The kernel boots, but on calling the
init a trap is called with the text:

handle_interruption() pid=1 command='init'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011
r0-3     00000000 000c0f38 00033a1b 000c0f3c
r4-7     000c0f38 ffffffff 00000001 0002a1d8
r8-11    c02ac640 00000000 00000000 c0145f30
r12-15   00000000 00000000 00000000 00000000
r16-19   c027b60c 00000000 c02ac000

and so on, running in a loop.


The code is in kernel/traps.c

Further I tried to build a statically linked bash-2.03,
but I had problems setting up the build process to produce
a HP PARISC user program. What I have to do to setup or
prepare default source trees for cross building (the
compiler runs....)

Cheers

	Christoph Plattner


-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Same boot problem on a 9000/720/50 HP machine as 
 on 712/60 of Niskanen
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Christoph Plattner writes...

> On my 9000/720 (I have it since one week) I have the same problem
> booting the CD 0.5
> or
> a selfbuild kernel. The kernel boots, but on calling the
> init a trap is called with the text:
> 
> handle_interruption() pid=1 command='init'
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001011
> r0-3     00000000 000c0f38 00033a1b 000c0f3c
> r4-7     000c0f38 ffffffff 00000001 0002a1d8
> r8-11    c02ac640 00000000 00000000 c0145f30
> r12-15   00000000 00000000 00000000 00000000
> r16-19   c027b60c 00000000 c02ac000
> 
> and so on, running in a loop.

Yes, several people(myself included) saw this. IIRC a newer kernel fixes it.

> The code is in kernel/traps.c
> 
> Further I tried to build a statically linked bash-2.03,
> but I had problems setting up the build process to produce
> a HP PARISC user program. What I have to do to setup or
> prepare default source trees for cross building (the
> compiler runs....)

Which compiler are you using? You can grab a prebuilt hppa cross-compiler 
(that runs on i386-linux) at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-latest.tar.gz

bash is particularly hard to build. I was able to get the debian package to 
cross compile using the dpkg-cross tool and by making a few changes to the 
source tree. I still need to test the binary, if it works I'll post it.

-- 
Matt Taggart
taggart@fc.hp.com



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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] another trap 28
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Not sure this is worth pursueing...just in case someone else runs
into the same problem.

[-1071975368]: Unaligned data reference 28

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111110000001010
r0-3     00000000 c027f801 c01b06a4 c02d54ec
r4-7     dfdf1600 00000040 00000000 c02d5000
r8-11    00000080 dffee278 00000080 00000001
r12-15   dffee288 00023a50 00000040 0000ffff
r16-19   df613c3f 00000001 0000b71b 00000140
r20-23   00000040 00000040 00000000 0000000b
r24-27   00010000 00000600 c02d5000 c025c001
r28-31   c027f801 01093c9d df6143c0 c01af438
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c01b2178 c01b217c
 IIR: 4b930308    ISR: 00000000  IOR: c027f985
ORIG_R28: 00000007
die_if_kernel recursion detected.

0xc01b2178 scsi_free+18
0xc01b06a4 scsi_io_completion+a4
0xc01af438 scsi_old_done+26c



grant


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Subject: Re: [parisc-linux] Same boot problem on a 9000/720/50 HP machine as 
 on 712/60 of Niskanen
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Matt Taggart writes...

[snip init looping]

> Yes, several people(myself included) saw this. IIRC a newer kernel fixes it.
> 
> > Further I tried to build a statically linked bash-2.03,
> > but I had problems setting up the build process to produce
> > a HP PARISC user program. What I have to do to setup or
> > prepare default source trees for cross building (the
> > compiler runs....)
> 
> Which compiler are you using? You can grab a prebuilt hppa cross-compiler 
> (that runs on i386-linux) at,
> 
> ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-latest.tar.gz
> 
> bash is particularly hard to build. I was able to get the debian package to 
> cross compile using the dpkg-cross tool and by making a few changes to the 
> source tree. I still need to test the binary, if it works I'll post it.

Ok, I got bash to build static against the glibc in the xc and I setup an 
nfsroot with bash as my init. I am using a new kernel built with the same xc. 
Here's what I get when booting,

-----------------------------------------------------------------------------
.
.
.
IP-Config: Got BOOTP answer from 15.1.51.72, my address is 15.1.51.73
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kmem_create: Forcing size word alignment - nfs_fh
Looking up port of RPC 100003/2 on 15.1.51.72
Looking up port of RPC 100005/2 on 15.1.51.72
VFS: Mounted root (nfs filesystem) readonly.

do_page_fault() pid=1 command='init' address=0xfffffff8
vm_start = 0xbb000000, vm_end = 0xbb002000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011
r0-3     00000000 001071d0 00088153 fffffff8
r4-7     bb0002c8 00000023 00000000 0000003a
r8-11    00001368 00000000 000d6884 c01456a4
r12-15   00000000 00000000 00000000 00000000
r16-19   c027b60c c02ac000 00000000 00000001
r20-23   000e3848 000e384c 01010101 80808080
r24-27   000e3828 00000023 00000000 000fd9d0
r28-31   00000022 0000000a bb000480 0008d443
sr0-3    00000000 00000000 00000000 00000001
sr4-7    00000001 00000001 00000001 00000001

IASQ: 00000001 00000001 IAOQ: 00068697 0006869b
 IIR: 0c601084    ISR: 00000001  IOR: fffffff8
ORIG_R28: 00000003
-----------------------------------------------------------------------------

and it keeps looping with that same error.

The bash I'm using is at

ftp://puffin.external.hp.com/pub/parisc/debug/bash-20001226.tar.gz

The xc I'm using is at

ftp://puffin.external.hp.com/pub/parisc/debug/xc-20001222.tar.gz

I think the kernel and libc have different world views. I can provide 
different bits on request.

Any ideas?

-- 
Matt Taggart
taggart@fc.hp.com





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From: Alex deVries <adevries@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] performance
Date: Wed, 27 Dec 2000 12:05:19 -0500
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I stumbled on this:
http://www.spec.org/osg/web99/results/res2000q4/

This shows some PA-RISC machines running HPUX performing reasonably
well.

What would it take to get parisc-linux to perform similiarly to HPUX for
these kinds of numbers?  Showing that these kinds of numbers are
possible for parisc-linux would certainly help in our quest to have real
users.


- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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Alex deVries wrote:
> I stumbled on this:
> http://www.spec.org/osg/web99/results/res2000q4/
> 
> This shows some PA-RISC machines running HPUX performing reasonably well.

HPUX11+Zeus on A500 posted the highest rated Specweb99 for single CPU machine.
Though the HP specweb folks didn't expect that to last very long...

Note that IBM Netfinity server nearly doubled in performance using
native OS+Zeus vs linux+Tux. I don't expect such a dramatic difference
for parisc-linux+Tux vs HPUX+Zeus.

> What would it take to get parisc-linux to perform similiarly to HPUX for
> these kinds of numbers?  Showing that these kinds of numbers are
> possible for parisc-linux would certainly help in our quest to have real
> users.

Offhand, I can think of several things (roughly in order):
o Tux (and/or zero copy - aka "Block I/O")
o support more than 512MB memory - preferably 8 or 16GB (64-bit kernel)
o Profile Based Optimization (compiler/linker)
o Write a module to dump CPU performance counters to /proc
  (and use output to tune critical code paths)
o handle 10 packets per interrupt under acenic
o Jumbo Frames?

I'm sure others (eg jsm) could add alot more here.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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> http://www.spec.org/osg/web99/results/res2000q4/
> 
> This shows some PA-RISC machines running HPUX performing reasonably
> well.

Specweb is basically a con. Its not a materially valuable benchmark. It benches
how fast your irq handler path is, how fast your memory cache is, how good
your DMA transfers are. It has almost nothing to do with how good a web
server the box is.

> What would it take to get parisc-linux to perform similiarly to HPUX for
> these kinds of numbers?  Showing that these kinds of numbers are
> possible for parisc-linux would certainly help in our quest to have real
> users.

Basically it comes down to using DMA, caching everything and using the fact
it is a completely hoax benchmark to write custom tuned code for the job. 
Even the people who 'use xyz webserver' and it sounds standard turn out to 
be embedding it or half of it in the kernel.

So it comes down to - tuning the network card driver, tuning the IRQ path, 
making sure the cache handling is optimal. The rest consists of loading the
machine with 8Gbytes of RAM, using obscenely smart ethernet cards and having
good memory bandwidth.

The 64bit pa-risc boxes have the hardware for it, in fact they have better 
hardware for it than x86. All you have to do is write better tlb, irq and pci
handling code than the HP/UX engineering team 8).

Alan


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Alan Cox wrote:
> > http://www.spec.org/osg/web99/results/res2000q4/
> >
> > This shows some PA-RISC machines running HPUX performing reasonably
> > well.
> 
> Specweb is basically a con. Its not a materially valuable benchmark. It benches
> how fast your irq handler path is, how fast your memory cache is, how good
> your DMA transfers are. It has almost nothing to do with how good a web
> server the box is.

I agree that specweb might not actually be functionally practical.

This might not be the case with specweb, but sometimes specifications do
have the ability to influence customers regardless of their validity.

That's interesting for one reason: if the marketing helps make potential
customers think that parisc-linux is fast, they'll buy parisc boxes, and
HP is more likely to allocate developer time on this project.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Same boot problem on a 9000/720/50 HP machine as on 
 712/60 of Niskanen
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Xref: news.gmane.org gmane.linux.ports.parisc:9023

What is a newer kernel  ?
Date, version ?
What does IIRC mean ?

Ad tool-chain:

        I use the tool-chain of the puffingroup, selfmade from the
        latest version of 21.12.2000 or so. I build it from source
        and it was no problem except the fact, that the it must be
        `--host' not `--HOST' (I have some experiences in it).

        But it was not possible to build bash from the scratch in
        this way. host=hppa-linux, build=i386-linux should be the
        correct one, but ....
        The biuld process of bash (and I think for other too,
        does not call the cross compiler). The use of CC= AS= LD=
        etc has the other problem, that binary tools which are build
        in the build process are running on PA RISC, but they are used
        in i386 for further building.

        So my question: How can I tell an autoconfigured build process
        (standard linux source tree) to use the cross compiler on the
        right points.

	As I used RedHat up to now, I have no experience in
	debian packaging system. What are this files like
	dpkg-cross tool, etc...
	How to use them, how to install them.

	You say, the bash is a problem. Is this for other tools
	much easier, like `init' or daemons, etc...

Thanks for the help and a happy new year soon....

	Christoph Plattner




Matt Taggart wrote:
> 
> Christoph Plattner writes...
> 
> > On my 9000/720 (I have it since one week) I have the same problem
> > booting the CD 0.5
> > or
> > a selfbuild kernel. The kernel boots, but on calling the
> > init a trap is called with the text:
> >
> > handle_interruption() pid=1 command='init'
> >
> >      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > PSW: 00000000000001001111111100001011
> > r0-3     00000000 000c0f38 00033a1b 000c0f3c
> > r4-7     000c0f38 ffffffff 00000001 0002a1d8
> > r8-11    c02ac640 00000000 00000000 c0145f30
> > r12-15   00000000 00000000 00000000 00000000
> > r16-19   c027b60c 00000000 c02ac000
> >
> > and so on, running in a loop.
> 
> Yes, several people(myself included) saw this. IIRC a newer kernel fixes it.
> 
> > The code is in kernel/traps.c
> >
> > Further I tried to build a statically linked bash-2.03,
> > but I had problems setting up the build process to produce
> > a HP PARISC user program. What I have to do to setup or
> > prepare default source trees for cross building (the
> > compiler runs....)
> 
> Which compiler are you using? You can grab a prebuilt hppa cross-compiler
> (that runs on i386-linux) at,
> 
> ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-latest.tar.gz
> 
> bash is particularly hard to build. I was able to get the debian package to
> cross compile using the dpkg-cross tool and by making a few changes to the
> source tree. I still need to test the binary, if it works I'll post it.
> 
> --
> Matt Taggart
> taggart@fc.hp.com
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at


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From: "Ross Sponholtz" <rsponholtz@earthlink.net>
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Subject: [parisc-linux] Hi Also!
Date: Wed, 12 May 1999 23:55:24 -0500
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Hello, I too am new to the list; I have been lurking for a while, and have
this related question:  What hardware is being targeted right now, and what
is the minimum needed to help out?  Would a C110 be ok?  How 'bout a 715/50?

Also, could we put together a newbies task list?  Stuff that needs to be
done,  that people like me could do to usefully get our feet wet.  I'll
volunteer to coordinate the list, if everyone could send me the contents.
In fact, a FAQ list would be very useful.

Thanks,
Ross Sponholtz
rsponholtz@earthlink.net



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  In message <200012141640.LAA03285@hiauly1.hia.nrc.ca>you write:
  > That's what I thought.  It would appear to occur when the above two insns
  > get moved out of a loop.  The count gets decremented when the old insns
  > are deleted but not incremented when the new insns are created.  The puzzle
  > is why the count is zero rather than 1.  Maybe what happens is the two
  > insns in the loop are deleted first, then the label is deleted?  Notice
  > that insn 788 is moved to insn 1530.  However, the insn becomes 1531 and
  > the reg changes to 337 from 208.
In this case we typically will bump the number of uses before we delete
the insns that way the label doesn't go away unexpectedly.

jeff


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Subject: Re: [parisc-linux] SuckyIO support
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Matthew Wilcox wrote:
> 
> On Tue, Dec 19, 2000 at 09:42:51AM +0000, Matthew Wilcox wrote:
> >
> > Wow, this is a really sucky chip :-)
> >
> > OK, here's a first stab at some support for it.  Could someone with a
> > B/C/J `thousand' class machine please give it a try, and let me see the
> > relevant portions of their bootlog?

I'm still determined to give this to you, but I've had several hurdles
that are making this difficult:

- our C3k seems to be taking the Christmas break as holiday, as she
doesn't power up anymore.  Martin Petersen and I have seen this before,
and a bit of shaking and rattling got it to work last time.  

- got a workout by moving the J5k over to my cube, and it now HPMCs
before I see any relevant boot output.  Not sure why.

- I'm travelling until January 2.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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Newsgroups: gmane.linux.ports.parisc
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Grant Grundler wrote:
> I'm using local disks on the A500 to do the following:
> for i in 0 1 2 3 4 5 6 7 8 9; do dd if=/dev/sdd of=t$i \
> bs=2k count=1; od -A x -t xC t$i > x$i; done

Problem solved. Loosing page offset bits in the last "chunk"
of a scatter-gather list. We end up DMAing to the wrong part
of the page. Fix was tested on 32-bit/C3k and should work on
A500 as well now.

my apologies for the stupid mistake,
grant


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Subject: Re: [parisc-linux] Same boot problem on a 9000/720/50 HP machine as 
 on 712/60 of Niskanen
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Matt Taggart writes...

> Ok, I got bash to build static against the glibc in the xc and I setup an 
> nfsroot with bash as my init. I am using a new kernel built with the same xc.
>  
> Here's what I get when booting,
> 
> -----------------------------------------------------------------------------
> .
> .
> .
> IP-Config: Got BOOTP answer from 15.1.51.72, my address is 15.1.51.73
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> kmem_create: Forcing size word alignment - nfs_fh
> Looking up port of RPC 100003/2 on 15.1.51.72
> Looking up port of RPC 100005/2 on 15.1.51.72
> VFS: Mounted root (nfs filesystem) readonly.
> 
> do_page_fault() pid=1 command='init' address=0xfffffff8
> vm_start = 0xbb000000, vm_end = 0xbb002000
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001011
> r0-3     00000000 001071d0 00088153 fffffff8
> r4-7     bb0002c8 00000023 00000000 0000003a
> r8-11    00001368 00000000 000d6884 c01456a4
> r12-15   00000000 00000000 00000000 00000000
> r16-19   c027b60c c02ac000 00000000 00000001
> r20-23   000e3848 000e384c 01010101 80808080
> r24-27   000e3828 00000023 00000000 000fd9d0
> r28-31   00000022 0000000a bb000480 0008d443
> sr0-3    00000000 00000000 00000000 00000001
> sr4-7    00000001 00000001 00000001 00000001
> 
> IASQ: 00000001 00000001 IAOQ: 00068697 0006869b
>  IIR: 0c601084    ISR: 00000001  IOR: fffffff8
> ORIG_R28: 00000003
> -----------------------------------------------------------------------------
> 
> and it keeps looping with that same error.
> 
> The bash I'm using is at
> 
> ftp://puffin.external.hp.com/pub/parisc/debug/bash-20001226.tar.gz
> 
> The xc I'm using is at
> 
> ftp://puffin.external.hp.com/pub/parisc/debug/xc-20001222.tar.gz
> 
> I think the kernel and libc have different world views. I can provide 
> different bits on request.

I also just tried booting an old nfsroot, then trying to run the static bash. 
Here's what I get,

-----------------------------------------------------------------------------
geordi:/tmp/bash/bin# ./bash

do_page_fault() pid=117 command='bash' address=0xfffffff8
vm_start = 0xbb000000, vm_end = 0xbb001000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011
r0-3     00000000 001071d0 00088153 fffffff8
r4-7     bb000408 00000023 00000000 0000003a
r8-11    00001368 0008b810 000d6884 00094cf0
r12-15   00000000 00000000 00094cb0 00000000
r16-19   00000000 00000001 0000b71b 00000001
r20-23   000e3848 000e384c 01010101 80808080
r24-27   000e3828 00000023 00000000 000fd9d0
r28-31   00000022 000ec839 bb0005c0 0008d443
sr0-3    00000000 00000000 00000000 00000003
sr4-7    00000003 00000003 00000003 00000003

IASQ: 00000003 00000003 IAOQ: 00068697 0006869b
 IIR: 0c601084    ISR: 00000003  IOR: fffffff8
ORIG_R28: 00000003
Segmentation fault
-----------------------------------------------------------------------------

Just to see how bad the problem was I built helloworld and it runs ok. I'll 
try to narrow it down more than that :)

-- 
Matt Taggart
taggart@fc.hp.com



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Matt Taggart writes...

[bash problems snipped]
> Just to see how bad the problem was I built helloworld and it runs ok. I'll 
> try to narrow it down more than that :)

It seems to just be the xcompiled static bash I built. I xcompiled sash and it 
worked ok. I setup an nfsroot with a bunch of stuff I had cross-compiled and 
except for bash and a couple other things, it's working normally. I will try 
compiling bash native and see if that helps.

-- 
Matt Taggart
taggart@fc.hp.com



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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] DPF (code 15) in scsi on A500
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Hi all,

I was trying to setup a root disk on the A500 based on the v0.5 CD.
My A500 has crashed three times with this symptom.
Twice with DELAYED_RESOURCE_CNT defined in SBA and once without.
In case it matters, I'm using "modprobe sym53c8xx" to load the scsi drivers.

Here is data from the second crash:

# fdisk /dev/sda
...
   Device Boot    Start       End    Blocks   Id  System
/dev/sda1             1      1025   1049584   82  Linux swap
/dev/sda2          1026      1046     21504   f0  Unknown
/dev/sda3          1047      5143   4195328   83  Linux
/dev/sda4          5144      8682   3623936   83  Linux

Command (m for help): q

gggA500:~# dd if=/palinux-0.5.iso of=/dev/sdb bs=32k
5633+1 records in
5633+1 records out
gggA500:~# mke2fs /dev/sda3
mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
...
# mount /dev/sda3 /mnt
# mount /dev/sdb /cdrom
# cd /cdrom
# find . | cpio -pdum /mnt/

Dumping Stack from 00000000c8100000 to 00000000c8101dc0:

...
1cc0 00000000 00000000 00000000 00000000 00000000 c01e854c 00000000 c01e8550
1ce0 00000000 cfd5b800 00000000 00000000 00000000 c01aa5e8 00000000 cf386600
1d00 00000000 00000000 00000000 0002d1a4 00000000 00000230 00000000 00010230
1d20 00000000 0000003f 00000000 52820020 00000000 3010303b 00000000 31005262
1d40 00000000 cfd5b800 00000000 00000000 00000000 cf386600 00000000 cf386600
1d60 00000000 c02d8770 00000000 00000002 00000000 c01dff7c 00000000 c0281eb0
1d80 00000000 cfd5b800 00000000 00000000 00000000 cfd53680 00000000 cf28b800
1da0 00000000 c02d8770 00000000 0800000b 00000000 c0104b60 00000000 cf3e8000

Bad Address (null pointer deref?): Code=15 regs=00000000c8101a80 (Addr=31005262)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00001000000001001111111100001011                                           
r0-3     0000000000000000 00000000c02e0f70 00000000c01e855c 00000000cf2870f8
r4-7     00000000c02d8770 00000000c7bd7180 00000000cf287000 0000000000000004
r8-11    0000000000000000 0000000000000001 0000000000000001 0000000000000001
r12-15   0000000000000001 000000000000c7a8 00000000000007a8 000000000002971c
r16-19   00000000c8100f40 00000000c7cfcbc0 0000000000000000 0000000000000004
r20-23   3030303b31005252 0000000000001038 00000000c7bd7180 000000000000001e
r24-27   00000000c03327b0 0000000000000001 00000000c7bd7180 00000000c02d8770
r28-31   0000000000000000 00000000c8101a70 00000000c8101dc0 00000000000001a8
sr0-3    0000000000000380 0000000000000380 0000000000000000 0000000000000000
sr4-7    0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000c01e854c 00000000c01e8550
 IIR: 52820020    ISR: 000000003010303b  IOR: 0000000031005262

IOAQ 0xc01e854c __scsi_end_request+bc
GR02 0xc01e855c __scsi_end_request+cc

Some kernel addresses off the stack:
0xc0104b60 tlb_fault+250
0xc02d8770 __gp+0
0xc0281eb0 cpu_irq_region+0
0xc01dff7c scsi_dispatch_cmd+28c
0xc01aa5e8 blkdev_release_request+50
0xc01e8550 __scsi_end_request+c0
0xc01e854c __scsi_end_request+bc

Code around the offending instruction is:
    c01e8538:   46 d3 00 20     ldh 10(r22),r19
    c01e853c:   52 d4 00 d0     ldd 68(r22),r20
    c01e8540:   d2 73 1a c9     extrw,u r19,22,23,r19
    c01e8544:   0a 67 04 33     sub r7,r19,r19
    c01e8548:   da 67 0f e0     extrd,s r19,63,32,r7
    c01e854c:   52 82 00 20     ldd 10(r20),rp		<- DPF here
    c01e8550:   52 9b 00 30     ldd 18(r20),dp
    c01e8554:   e8 40 f0 00     call (rp)
    c01e8558:   08 00 02 40     nop

c01e854c:   52 82 00 20     ldd 10(r20),rp

and r20 pretty clearly has garbage in it.

On the third crash, r20 contained 35e199f72318db9d and the
kernel adresses on the stack looked similar (ie tlb_fault was
the first kernel address).

I didn't save r20 or other output from the first crash.

I've saved the 2cd crash's console_out/vmlinux/System.map in case someone
else dares look more at this.

grant


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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>   In message <200012141640.LAA03285@hiauly1.hia.nrc.ca>you write:
>   > That's what I thought.  It would appear to occur when the above two insns
>   > get moved out of a loop.  The count gets decremented when the old insns
>   > are deleted but not incremented when the new insns are created.  The puzzle
>   > is why the count is zero rather than 1.  Maybe what happens is the two
>   > insns in the loop are deleted first, then the label is deleted?  Notice
>   > that insn 788 is moved to insn 1530.  However, the insn becomes 1531 and
>   > the reg changes to 337 from 208.
> In this case we typically will bump the number of uses before we delete
> the insns that way the label doesn't go away unexpectedly.

As far I can tell, move_movables doesn't do this when it moves an insn
out of a loop.  It does this by deleting the old insn and creating a new
one.  It calls add_label_notes if notes need to be added to the new insn.

I sent a patch to add_label_notes for review which I think fixes the
problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Xref: news.gmane.org gmane.linux.ports.parisc:9032


Matt Taggart writes...

> It seems to just be the xcompiled static bash I built. I xcompiled sash and it
> worked ok. I setup an nfsroot with a bunch of stuff I had cross-compiled and 
> except for bash and a couple other things, it's working normally. I will try 
> compiling bash native and see if that helps.

OK, since I have a mostly-working nfsroot and a cross-built toolchain I tried 
running gcc. I just tried "gcc -o hello hellow.c" where hellow.c is the hello 
world program from cvs->userspace. The compiler dies with signal 6(abort). The 
system is also pretty erratic, sometimes the prompt takes a few minutes to 
return.(once with an out-of-memory error)

Someone suggested that I try an older kernel from before the stack changes 
were made eariler this month, so I tried an old kernel I had around(built with 
an old xc). Now gcc gets a little further, but dies with,

------------------------------------------------------------------------------
do_page_fault() pid=18 command='ld'


     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011
r0-3     00000000 fffffff4 000368d7 00107060
r4-7     00000005 000ef790 00125368 00000000
r8-11    000e3438 00000000 00105ca0 00000031
r12-15   000d9ea8 00000000 00107060 000e3120
r16-19   000fa0c0 00106838 00000000 00000000
r20-23   001067e8 00000000 0002cc50 00107060
r24-27   000fa0c0 000d9ea8 000e3120 000d7770
r28-31   00105ca0 00000002 20020500 000368d7
sr0-4    00000000 00000004 00000000 00000004
sr4-8    00000004 00000004 00000004 00000004

IASQ: 00000004 00000004 IAOQ: 0002d5bf 0002d5c3
 IIR: 0e752087    ISR: 00000004  IOR: 00000000
ORIG_R28: 00000000
collect2: ld terminated with signal 11 [Segmentation fault], core dumped
------------------------------------------------------------------------------

I also wanted to try the older kernel bits built with the new xc but I 
couldn't remember the -ffunction-section magic to make it work.

If other people want to play with this I have put my new nfsroots at,

ftp://puffin.external.hp.com/pub/parisc/debug/base-20001227.tar.gz [25MB]
ftp://puffin.external.hp.com/pub/parisc/debug/nfsroot-20001227.tar.gz [59MB]

-- 
Matt Taggart
taggart@fc.hp.com



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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] Lots of warnings in the compiler build logs
Date: Fri, 29 Dec 2000 18:14:14 -0700
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There are quite a few warnings in the compiler build logs. I thought I would 
post the logs in case someone wanted to work on cleanup. The build log for the 
cross-compiler is,

ftp://puffin.external.hp.com/pub/parisc/debug/xc-20001222.log [5.1MB]

and the log for the cross-compile of a native toolchain is,
 
ftp://puffin.external.hp.com/pub/parisc/debug/nc-20001222.log [4.8MB]

There are currently 452 warning lines in the xc log(builds binutils and gcc 
twice) and 269 warning lines in the nc log.

-- 
Matt Taggart
taggart@fc.hp.com



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Subject: [parisc-linux] xchg/cmpxchg defined in wrong place?
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Hello Linux Kernel Guru's,

After surveying all the arches that define __HAVE_ARCH_CMPXCHG:

./include/asm-alpha/system.h:#define __HAVE_ARCH_CMPXCHG 1
./include/asm-i386/system.h:#define __HAVE_ARCH_CMPXCHG 1
./include/asm-ia64/system.h:#define __HAVE_ARCH_CMPXCHG 1
./include/asm-ppc/system.h:#define __HAVE_ARCH_CMPXCHG  1
./include/asm-sparc64/system.h:#define __HAVE_ARCH_CMPXCHG 1

I've come to the conclusion xchg/cmpxchg definitions do NOT
belong in system.h.  AFAICT, all the above use Load Linked semantics
(or in the i386 case, operation is atomic). In other words, xchg/cmpxchg
are atomic operations.  Shouldn't xchg/cmpxchg definitions live
with other atomic operations - asm/atomic.h?

Currently, parisc __xchg lives in arch/parisc/kernel/setup.c. There is no
way to inline xchg or cmpxchg for parisc at the moment. And given the
dependendencies between asm/system.h, asm/spinlock.h, and asm/atomic.h,
I'm not trying to inline them. Perhaps when the definitions formally move
to atomic.h (or other more appropriate place).

And to add insult to injury, drivers/char/drm/drmP.h (the only visible
consumer of __HAVE_ARCH_CMPXCHG) doesn't even explicitly include
asm/system.h!

thanks,
grant


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Xref: news.gmane.org gmane.linux.ports.parisc:9035

> Hello, I too am new to the list; I have been lurking for a while, and have
> this related question:  What hardware is being targeted right now, and what
> is the minimum needed to help out?  Would a C110 be ok?  How 'bout a 715/50?

Due to the PDC interface being enough to get us to a bash prompt without
deciding on a single machine / machine group, any machine that does what
the PA1.1 docs say should be useful atm.

I think (this is just my personal plans and might very well change soon)
we'll boot using a ramdisk loaded by the bootloader with the kernel.
This means you need a dedicated Linux disk, and probably a HP-UX disk
to write diskimages to the Linux disk.

> Also, could we put together a newbies task list?  Stuff that needs to be

I think we don't have any of the typical boring repetitive tasks to let
newbies do atm. The basic task is to get the kernel working and there's
a list for things needed (though not up-to-date) somewhere on
www.thepuffingroup.com/parisc.

	Philipp Rumpf


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Alan,
Interesting comments. I had to think about them for a bit.

Alan Cox wrote:
> Specweb is basically a con. Its not a materially valuable benchmark.
> It benches how fast your irq handler path is, how fast your memory cache
> is, how good your DMA transfers are. It has almost nothing to do with how
> good a web server the box is.

At some level, all benchmarks are bogus. Bogomips encapsulates the issue.
Taking the benchmarks out of context is when the con game starts.
Isn't Specweb just one aspect of what makes a good webserver?
Others include cost, size, security, manageability, reliability, etc.
It just seems CPU/Memory/IO "bandwidth" and utilization (efficiency) are
valid things to measure. An outsiders perspective is Specweb attempts to
encapsulate those numbers with a representative workload.

Marketing drives most benchmarking I've been involved in.
And Marketing targets the more ignorant (but not too poor) customers. 
Smart (and rich) customers use specific benchmarks make a "short list"
and then measure *their* application performance.
HP has several "Capacity Planning Centers" just for those customers.

[ deleted comment about putting webserver in kernel ]

> So it comes down to - tuning the network card driver, tuning the IRQ path, 
> making sure the cache handling is optimal. The rest consists of loading the
> machine with 8Gbytes of RAM, using obscenely smart ethernet cards and having
> good memory bandwidth.
> 
> The 64bit pa-risc boxes have the hardware for it, in fact they have better 
> hardware for it than x86. All you have to do is write better tlb, irq and pci
> handling code than the HP/UX engineering team 8).

Given only a handful of people know the PARISC CPU/TLB as well as jsm,
and I (re)wrote the HPUX PCI code, I suggest long term performance
gains will be found in linux VM/PM (and other "architected" stuff like
atomic operations - which will always suck on parisc) and drivers.
(My definition of drivers includes networking stack and NIC device drivers).
Short term goal is to optimize existing parisc-specific code around
existing architecture.

[ /rant on ]
The HPUX engineering team is not lacking in talent - just opportunity to
make the zillions of small changes required to improve scalability and
reduce CPU utilization. Any single change resulting in less than 2%
performance improvement on something like SpecWeb is very hard to get
into HPUX kernel.
[ /rant off ]

grant


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Grant Grundler wrote:
...
> Currently, parisc __xchg lives in arch/parisc/kernel/setup.c.

Sorry. I got this fact wrong: __xchg lives in arch/parisc/lib/bitops.c

__xchg_called_with_bad_pointer *is* defined in arch/parisc/kernel/setup.c.
My understanding is this fuction in fact should NOT be defined.
It's a tool to catch problems for architectures which can inline __xchg.

Neither item is material to my arguments for defining them in atomic.h.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Hi,

please directly reply to me and not to the list because this question
is OT. - thanx.

I got a second hand apollo and it's working quite fine (out of the
box) with parisc-0.5.iso (uptimes growing :-) but as long as there
is no support for monitor (most likely I will never need anyway)
I wanted to use the HP A4033A monitor I got with it with some
other PC rather than letting it get dusty in a corner.

The only thing I could find was
http://www.hp.com/workstations/support/documentation/technotes/linux/monitor.html
but I am totaly unable to get it working with X. When I power it on
just after about 5 secs it falls asleep into power safe mode. tried with 3-
and 5-BNC cables with and without syncongreen.

It was working quite fine with apollo and hpux and X but prefering
linux there are no hpux config files any more.

I am wondering if any of you might have a working XF86Config file for
me ? Already tried up to two days now and slowly getting ...

Thank you in advance for your help,
Bjoern


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Subject: Re: OT: HP A4033A Monitor and X [solved ?]
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Xref: news.gmane.org gmane.linux.ports.parisc:9039

On Sat, 30 Dec 2000, Bjoern A. Zeeb wrote:

> I got a second hand apollo and it's working quite fine (out of the
> box) with parisc-0.5.iso (uptimes growing :-) but as long as there
> is no support for monitor (most likely I will never need anyway)
> I wanted to use the HP A4033A monitor I got with it with some
> other PC rather than letting it get dusty in a corner.

Hi,

many thanks to all people who answered and helped.

I am posting the answer because I got mails from people having the
same problem.

I finally managed to get it working :-))

setup:
PC
G400
5-BNC cable (rgb, hsync, vsync)
X 4.0.2

I do not know why but it started to work after I accidentally
(while trying a second cable) swapped hsync and vsync.
Had no chance to get it up with 3-bnc or SyncOnGreen stuff.
I do not know if it's a problem with my card, with the cables or with
the monitor; it's just working now.

If anybody needs a XF86Config file. I put mine on
http://www.zabbadoz.net/zabbadoz-network/z1/XF86Config
(starting a not yet working dual screen setup so do not get confused)

A happy and successful new year.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] performance
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To: grundler@cup.hp.com (Grant Grundler)
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Xref: news.gmane.org gmane.linux.ports.parisc:9040

> Given only a handful of people know the PARISC CPU/TLB as well as jsm,
> and I (re)wrote the HPUX PCI code, I suggest long term performance
> gains will be found in linux VM/PM (and other "architected" stuff like
> atomic operations - which will always suck on parisc) and drivers.
> (My definition of drivers includes networking stack and NIC device drivers).
> Short term goal is to optimize existing parisc-specific code around
> existing architecture.

Much of the work Ingo and others did concentrated on the eepro100 driver
internals down to removing every pci stall, doing irq affinity and doing small
optimisations on the networking stack.

So I'd say your suggestion matches what happened on x86 too. The atomic stuff
is trickier. Linux is designed to optimal on the common high performance 
hardware and right now the design therefore focuses on ia32 at the cost 
sometimes of other systems.

Alan


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] xchg/cmpxchg defined in wrong place?
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Xref: news.gmane.org gmane.linux.ports.parisc:9041

> way to inline xchg or cmpxchg for parisc at the moment. And given the
> dependendencies between asm/system.h, asm/spinlock.h, and asm/atomic.h,
> I'm not trying to inline them. Perhaps when the definitions formally move
> to atomic.h (or other more appropriate place).
> 
> And to add insult to injury, drivers/char/drm/drmP.h (the only visible
> consumer of __HAVE_ARCH_CMPXCHG) doesn't even explicitly include
> asm/system.h!

Seems a reasonable thing to try and move to atomic.h yes

> 


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Alan Cox wrote:
> Seems a reasonable thing to try and move to atomic.h yes

ok. I'll take a whack at parisc arch and see what happens.
If it's easy, I'll try the i386 arch as well - mostly
to build more drivers as a sanity check.

thanks,
grant


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: pa reload problem
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> > Your GO_IF_LEGITIMATE_ADDRESS will accept the UNSPEC?
> > The mind boggles.  Why, then, is this strange beast its own insn?
> 
> I have done some more testing.

As I do more work trying to build the pa port under hpux 10.20 with
`-fPIC -O3', I have begun to understand why this strange beast is its
own insn.  The machine definition which I am testing currently has
the UNSPEC integrated with other move_operands.  However, in doing this,
I have encountered another reload problem.

Here is the relevant rtl from the lreg pass:

;; Function init_all_optabs

...

(note 223 107 225 ("insn-opinit.c") 48 -1347440721)

(insn 225 223 1961 (set (reg/f:SI 611)
        (plus:SI (reg:SI 19 %r19)
            (high:SI (symbol_ref:SI ("target_flags"))))) 80 {*pa.md:2326} (nil)
    (nil))

...

(note 1063 1013 1067 ("insn-opinit.c") 130 -1347440721)

(insn 1067 1063 2002 (set (reg/f:SI 403)
        (mem/u:SI (lo_sum:SI (reg/f:SI 611)
                (unspec:SI[ 
                        (symbol_ref:SI ("target_flags"))
                    ]  0)) 0)) 69 {*pa.md:2099} (nil)
    (expr_list:REG_EQUIV (mem/u:SI (lo_sum:SI (reg/f:SI 611)
                (unspec:SI[ 
                        (symbol_ref:SI ("target_flags"))
                    ]  0)) 0)
        (expr_list:REG_DEAD (reg/f:SI 611)
            (nil))))

...

(note 2006 1059 1069 ("insn-opinit.c") 130 -1347440721)

(insn 1069 2006 2007 (set (reg:SI 404)
        (mem/f:SI (reg/f:SI 403) 4)) 69 {*pa.md:2099} (insn_list 1067 (nil))
    (expr_list:REG_EQUIV (mem/f:SI (reg/f:SI 403) 4)
        (nil)))

...

(note 1085 1926 1091 ("insn-opinit.c") 132 -1347440721)

(insn 1091 1085 1094 (set (reg:SI 411)
        (mem/f:SI (reg/f:SI 403) 4)) 69 {*pa.md:2099} (nil)
    (expr_list:REG_EQUIV (mem/f:SI (reg/f:SI 403) 4)
        (nil)))

...

(note 2168 1597 1607 ("insn-opinit.c") 194 -1347440721)

(insn 1607 2168 2169 (set (reg:SI 538)
        (mem/f:SI (reg/f:SI 403) 4)) 69 {*pa.md:2099} (insn_list:REG_DEP_ANTI 1497 (nil))
    (expr_list:REG_EQUIV (mem/f:SI (reg/f:SI 403) 4)
        (nil)))

...

(note 1621 1931 1627 ("insn-opinit.c") 196 -1347440721)

(insn 1627 1621 1630 (set (reg:SI 544)
        (mem/f:SI (reg/f:SI 403) 4)) 69 {*pa.md:2099} (nil)
    (expr_list:REG_DEAD (reg/f:SI 403)
        (nil)))

Note that register 611 is dead at insn 1067.  However, we still have REG_EQUIV
notes which implicitly use register 611 on insns 1091 and 1607 (not sure
why there isn't a note on 1627).  This leads to disaster at insn 1607
when the hard register assigned to 611 gets reused for other purposes
in the intervening code.

Is the REG_DEAD note for register 611 in the right place?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Matthew Wilcox <matthew@wil.cx>
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On Sat, Dec 23, 2000 at 01:37:47PM +0000, Matthew Wilcox wrote:
> On Thu, Dec 21, 2000 at 09:28:55PM +0000, Matthew Wilcox wrote:
> > I haven't tested STI console with these changes.  I don't have a
> > monitor/kbd for my 712.  Someone should test this, and remove the calls
> > to pdc_console_die (and remove pdc_console_die altogether).
> 
> here's a patch which does this.  please let me know how this works out
> for you.

If no-one tests this and tells me whether it works, i shall commit it
anyway and you can deal with the breakage yourselves.

-- 
Revolutions do not require corporate support.


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Grant Grundler wrote:
> ok. I'll take a whack at parisc arch and see what happens.

This was easy. Was even able to build/link with DRM and all the
related drivers. Code change committed to parisc-linux CVS:
o removes bogus definition of __xchg_called_with_bad_pointer from setup.c
o definitions follow sparc64 model except I didn't try to inline all
  of this mess.
o added __xchgNN() and __cmpxchg_uNN() functions to bitops.c and
  declared them in parisc_ksyms.c for CONFIG_MODULES support.
o added "include <asm/atomic.h>" to arch/parisc/kernel/semaphore.c
  to make sure it gets the xchg() macro definition.

TODO: DRM should explicitly include asm/atomic.h to pick up
  #define __HAVE_ARCH_CMPXCHG directly.

> If it's easy, I'll try the i386 arch as well - mostly
> to build more drivers as a sanity check.

I moved all the xchg/cmpxchg related code from include/asm-i386/system.h
to include/asm-i386/atomic.h and built an x86 kernel (natively) but didn't
boot it. Booting the kernel shouldn't be necessary since mis-use will
result in a linker error (xchg undefined).

I used 2.4.0-test10 since it was handy. Once I get newer Linus
tree, I can cut/paste again and submit the patch to l-k.
Should be able to do this in the next couple of days unless someone
tells me they've done it already.

thanks,
grant


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On Sat, 30 Dec 2000, Grant Grundler wrote:

> I moved all the xchg/cmpxchg related code from include/asm-i386/system.h
> to include/asm-i386/atomic.h and built an x86 kernel (natively) but didn't
> boot it. Booting the kernel shouldn't be necessary since mis-use will
> result in a linker error (xchg undefined).

I've always liked this one:

Theory and Practice, distinguished:  In Theory, there is no
difference between Theory and Practice; in Practice, there
always is ...

I'm going to try spinning up a G50, and sniffing at a K220 for
parisc linux ... 735/125 on the way in ... I'd like to leave
HP-UX on the K220 and 'dual boot' -- but it is such a pain to
hook a console up -- Any thoughts on an OS/2 style Boot
Manager leaving 'next boot' semaphore flags behind ...

-- Russ



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Subject: [parisc-linux] ZONE_DMA
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I notice that right now we're partitioning our memory 50% into DMAable
memory and 50% into normal memory (and 0% into HIGHMEM -- but I believe
this part to be correct).  I can't believe that's really the limit of
memory we can DMA into.

I'm not familiar with the hardware problem here.  Must EISA cards be
restricted to a certain part of the address space?  I can glean from
the source that ISA cards are restricted to a 16MB address space --
are we going to support ISA cards?

I presume that no machine which supports ISA cards has an IOMMU that is
capable of mapping a chunk of higher ram into the 16MB bus address space.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] ZONE_DMA
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> I'm not familiar with the hardware problem here.  Must EISA cards be
> restricted to a certain part of the address space?  I can glean from

EISA on PC can hit the full 32bits. DMA is meant to indicate the 16Mb lowest
memory segment that ISA can hit (which may not be at 0 depending on the box)

> the source that ISA cards are restricted to a 16MB address space --
> are we going to support ISA cards?

Some PCI cards have the same limit 8)

> I presume that no machine which supports ISA cards has an IOMMU that is
> capable of mapping a chunk of higher ram into the 16MB bus address space.

Some Alpha's probably can but we don't support that. The pci side API
pci_alloc_consistent does


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On Mon, Jan 01, 2001 at 06:09:53PM +0000, Alan Cox wrote:
> > I'm not familiar with the hardware problem here.  Must EISA cards be
> > restricted to a certain part of the address space?  I can glean from
> 
> EISA on PC can hit the full 32bits. DMA is meant to indicate the 16Mb lowest
> memory segment that ISA can hit (which may not be at 0 depending on the box)

OK, so people who write EISA drivers are not going to specify GFP_DMA.
Or shouldn't.

> > the source that ISA cards are restricted to a 16MB address space --
> > are we going to support ISA cards?
> 
> Some PCI cards have the same limit 8)

But that's handled through the PCI DMA mapping interface these days.

So how should we be populating our zones?  Put all of our memory in
ZONE_DMA, like ppc, since the only people who'll be specifying GFP_DMA
will have done so incorrectly?  Put the first 16MB of it in there,
since we might support ISA some day?  Put none of it in there on the
grounds we don't support ISA at all?

-- 
Revolutions do not require corporate support.


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> > EISA on PC can hit the full 32bits. DMA is meant to indicate the 16Mb lowest
> > memory segment that ISA can hit (which may not be at 0 depending on the box)
> 
> OK, so people who write EISA drivers are not going to specify GFP_DMA.
> Or shouldn't.

Or know something about their hardware being crap.

> > Some PCI cards have the same limit 8)
> But that's handled through the PCI DMA mapping interface these days.

Yes

> So how should we be populating our zones?  Put all of our memory in
> ZONE_DMA, like ppc, since the only people who'll be specifying GFP_DMA
> will have done so incorrectly?  Put the first 16MB of it in there,

That is a very dangerous assumption (as some PPC people have discovered when
they DMA stuff into the wrong place)

> since we might support ISA some day?  Put none of it in there on the
> grounds we don't support ISA at all?

I think none is safer. pci_alloc_consistent seems to address all the stuff
we worry about. 

Alan


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On Mon, Jan 01, 2001 at 06:32:11PM +0000, Alan Cox wrote:
> Or know something about their hardware being crap.

Hm.

> > So how should we be populating our zones?  Put all of our memory in
> > ZONE_DMA, like ppc, since the only people who'll be specifying GFP_DMA
> > will have done so incorrectly?  Put the first 16MB of it in there,
> 
> That is a very dangerous assumption (as some PPC people have discovered when
> they DMA stuff into the wrong place)
> 
> > since we might support ISA some day?  Put none of it in there on the
> > grounds we don't support ISA at all?
> 
> I think none is safer. pci_alloc_consistent seems to address all the stuff
> we worry about. 

But if we have none, then all GFP_DMA allocations will fail.  Which
includes the scsi midlayers.  Ooh, I just noticed that scsi_scan.c
is broken...  expect a patch RSN.

-- 
Revolutions do not require corporate support.


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> But if we have none, then all GFP_DMA allocations will fail.  Which
> includes the scsi midlayers.  Ooh, I just noticed that scsi_scan.c
> is broken...  expect a patch RSN.

SCSI may need fixing, but do you want to do it right 8)



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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
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On Mon, Jan 01, 2001 at 07:01:19PM +0000, Alan Cox wrote:
> > But if we have none, then all GFP_DMA allocations will fail.  Which
> > includes the scsi midlayers.  Ooh, I just noticed that scsi_scan.c
> > is broken...  expect a patch RSN.
> 
> SCSI may need fixing, but do you want to do it right 8)

I don't think I have time to do that :-)

Here's a patch which makes it slightly better.  Justifications:
 * changed GFP_DMA to GFP_KERNEL | GFP_DMA since GFP_DMA alone is nonsense.
 * got rid of the ?: since it's pure obfuscation in this case.
 * changed &scsi_result0[0] to scsi_result0.  again, sheer obfuscation.

just peering at this little bit makes me realise how large the scsi
problems must be :-)

It compiles.  I promise no more.

Index: drivers/scsi/scsi_scan.c
===================================================================
RCS file: /var/cvs/linux/drivers/scsi/scsi_scan.c,v
retrieving revision 1.1.1.1
diff -u -p -u -r1.1.1.1 scsi_scan.c
--- drivers/scsi/scsi_scan.c	2000/09/19 15:01:34	1.1.1.1
+++ drivers/scsi/scsi_scan.c	2001/01/01 19:09:43
@@ -288,8 +288,11 @@ void scan_scsis(struct Scsi_Host *shpnt,
 		scsi_initialize_queue(SDpnt, shpnt);
 		SDpnt->request_queue.queuedata = (void *) SDpnt;
 		/* Make sure we have something that is valid for DMA purposes */
-		scsi_result = ((!shpnt->unchecked_isa_dma)
-			       ? &scsi_result0[0] : kmalloc(512, GFP_DMA));
+		if (shpnt->unchecked_isa_dma) {
+			scsi_result = kmalloc(512, GFP_KERNEL | GFP_DMA);
+		} else {
+			scsi_result = scsi_result0;
+		}
 	}
 
 	if (scsi_result == NULL) {
@@ -411,7 +414,7 @@ void scan_scsis(struct Scsi_Host *shpnt,
 		}		/* for channel ends */
 	}			/* if/else hardcoded */
 
-      leave:
+ leave:
 
 	{			/* Unchain SRpnt from host_queue */
 		Scsi_Device *prev, *next;
@@ -438,7 +441,7 @@ void scan_scsis(struct Scsi_Host *shpnt,
 	}
 
 	/* If we allocated a buffer so we could do DMA, free it now */
-	if (scsi_result != &scsi_result0[0] && scsi_result != NULL) {
+	if (scsi_result != scsi_result0 && scsi_result != NULL) {
 		kfree(scsi_result);
 	} {
 		Scsi_Device *sdev;

-- 
Revolutions do not require corporate support.


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http://www.uwsg.iu.edu/hypermail/linux/kernel/0012.3/0584.html

-- 
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R P Herrold wrote:
...
> I'm going to try spinning up a G50, and sniffing at a K220 for
> parisc linux ... 735/125 on the way in ... I'd like to leave
> HP-UX on the K220 and 'dual boot' -- but it is such a pain to
> hook a console up -- Any thoughts on an OS/2 style Boot
> Manager leaving 'next boot' semaphore flags behind ...

It's hard to hook up a serial console on K220?!

Under HPUX, "setboot" command can set the primary boot path
so it can reboot from any disk/lan you want. You would have to
write a similar program for parisc-linux to poke stuff into NVRAM.
It might be a PDC call to do it; I don't know. But it's doable.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Wed, 12 May 1999, Matthew Wilcox wrote:

> On Wed, May 12, 1999 at 01:00:04PM -0700, Grant Grundler wrote:
> > Mathew can also download and try to install the PA-mklinux.
> > I have this running on a 712/60 now. I suggest this because
> > I don't know how accessible HP-UX bits are to the general public.
> > HP-UX is usually distributed on CD-ROM these days.
> 
> Alas, no.  The 715/33 is the one machine that mklinux does not support;
> I looked at that about 6 months ago.
Have you looked at OpenBSD ?


Tom
-- 
=============================+===========================
Tom Javen                    |   Innotrac Diagnostics Oy
email tom.javen@innotrac.fi  |   Finland
gsm   +358-40-5860532        |   phone +358-2-2410025
                             |   fax   +358-2-2410024
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  In message <200012301905.OAA19130@hiauly1.hia.nrc.ca>you write:
  > Note that register 611 is dead at insn 1067.
Yes.


  > However, we still have REG_EQUIV
  > notes which implicitly use register 611 on insns 1091 and 1607 (not sure
  > why there isn't a note on 1627).
Err, no, that's not true.  There is no idea of an "implicit" use like
this.  

  > This leads to disaster at insn 1607
  > when the hard register assigned to 611 gets reused for other purposes
  > in the intervening code.
This indicates a reload bug to me.


  > Is the REG_DEAD note for register 611 in the right place?
Yes.
jeff


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Alan Cox wrote:
> Some Alpha's probably can but we don't support that. The pci side API
> pci_alloc_consistent does

Nit: I think pci_dma_supported() is the interface meant here.

Documentation/DMA-mapping.txt has a good example here on how
pci_dma_supported() supports cripppled PCI devices.

Right now, SBA code (and CCIO too I think) only permit devices
that say they support 32-bit addressing. sba_dma_supported()
code needs to be revisited for two reasons:
o the number of bits the IO MMU actually uses is typically alot less
  - depends on the size of the I/O Pdir. Ie it could support the
  crippled PCI device pretty easily.
o Elroy HW supports 64-bit PCI addressing (Dual Address cycle).

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Mon, Jan 01, 2001 at 04:59:31PM -0800, Grant Grundler wrote:
> o Elroy HW supports 64-bit PCI addressing (Dual Address cycle).

But, if possible, we want to avoid doing DAC as it cuts down the bandwidth
(and increases latency by a clock).  obviously, if it's a 64-bit device
and a 64-bit controller, there's no problem, but we should try to stick
to 32-bit bus addresses where possible.

-- 
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Xref: news.gmane.org gmane.linux.ports.parisc:9061

Matthew Wilcox wrote:
> But, if possible, we want to avoid doing DAC as it cuts down the bandwidth
> (and increases latency by a clock).  obviously, if it's a 64-bit device
> and a 64-bit controller, there's no problem, but we should try to stick
> to 32-bit bus addresses where possible.

That's correct. But then we can bypass the I/O MMU. SBA HW has bits
to support that - but I don't fully understand all the limitations of when
this "mode" can be used. Bypassing the I/O MMU would improve DMA performance
and reduce work CPU has to do to "map" each page of DMA.

Though it's generally a good direction, optimizing the PCI bus isn't
always the right answer.  Ie moving from 32- to 64-bit wide data
transfers is a *much* bigger performance win than DAC.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] [PATCH] move xchg/cmpxchg to atomic.h
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On parisc-linux mailing list, Grant Grundler wrote:
> After surveying all the arches that define __HAVE_ARCH_CMPXCHG:
> 
> ./include/asm-alpha/system.h:#define __HAVE_ARCH_CMPXCHG 1
> ./include/asm-i386/system.h:#define __HAVE_ARCH_CMPXCHG 1
> ./include/asm-ia64/system.h:#define __HAVE_ARCH_CMPXCHG 1
> ./include/asm-ppc/system.h:#define __HAVE_ARCH_CMPXCHG  1
> ./include/asm-sparc64/system.h:#define __HAVE_ARCH_CMPXCHG 1
> 
> I've come to the conclusion xchg/cmpxchg definitions do NOT
> belong in system.h.  AFAICT, all the above use Load Linked semantics
> (or in the i386 case, operation is atomic). In other words, xchg/cmpxchg
> are atomic operations.  Shouldn't xchg/cmpxchg definitions live
> with other atomic operations - asm/atomic.h?
 
On Sat, 30 Dec 2000 16:46:57 +0000 (GMT), Alan Cox replied:
| Seems a reasonable thing to try and move to atomic.h yes

Fundemental problem is parisc only supports one atomic operation
(LDCW/LDCD) and uses spinlocks for all atomic operations including
xchg/cmpxchg. Issue is dependencies between system.h, atomic.h
and spinlock.h are *really* ugly and prevented parisc port from
inlining xchg/cmpxchg definitions. This is a first step in fixing
that problem.

I've already made this change to the parisc-linux source tree for parisc
and parisc64 builds. Below is the i386 patch for linux-2.4.0-prerelease.
This is a simple cut/paste.

thanks,
grant

diff -ruNp linux/include/asm-i386/atomic.h linux.patch/include/asm-i386/atomic.h
--- linux/include/asm-i386/atomic.h	Sun Dec 31 11:10:16 2000
+++ linux.patch/include/asm-i386/atomic.h	Mon Jan  1 23:28:08 2001
@@ -2,6 +2,7 @@
 #define __ARCH_I386_ATOMIC__
 
 #include <linux/config.h>
+#include <linux/bitops.h> /* for LOCK_PREFIX */
 
 /*
  * Atomic operations that C can't guarantee us.  Useful for
@@ -111,4 +112,136 @@ __asm__ __volatile__(LOCK "andl %0,%1" \
 __asm__ __volatile__(LOCK "orl %0,%1" \
 : : "r" (mask),"m" (*addr) : "memory")
 
+
+/* xchg/cmpxchg moved from asm/system.h */
+#define xchg(ptr,v) ((__typeof__(*(ptr)))__xchg((unsigned long)(v),(ptr),sizeof(*(ptr))))
+
+#define tas(ptr) (xchg((ptr),1))
+
+struct __xchg_dummy { unsigned long a[100]; };
+#define __xg(x) ((struct __xchg_dummy *)(x))
+
+
+/*
+ * The semantics of XCHGCMP8B are a bit strange, this is why
+ * there is a loop and the loading of %%eax and %%edx has to
+ * be inside. This inlines well in most cases, the cached
+ * cost is around ~38 cycles. (in the future we might want
+ * to do an SIMD/3DNOW!/MMX/FPU 64-bit store here, but that
+ * might have an implicit FPU-save as a cost, so it's not
+ * clear which path to go.)
+ */
+extern inline void __set_64bit (unsigned long long * ptr,
+		unsigned int low, unsigned int high)
+{
+__asm__ __volatile__ (
+	"1:	movl (%0), %%eax;
+		movl 4(%0), %%edx;
+		cmpxchg8b (%0);
+		jnz 1b"
+	::		"D"(ptr),
+			"b"(low),
+			"c"(high)
+	:
+			"ax","dx","memory");
+}
+
+extern void inline __set_64bit_constant (unsigned long long *ptr,
+						 unsigned long long value)
+{
+	__set_64bit(ptr,(unsigned int)(value), (unsigned int)((value)>>32ULL));
+}
+#define ll_low(x)	*(((unsigned int*)&(x))+0)
+#define ll_high(x)	*(((unsigned int*)&(x))+1)
+
+extern void inline __set_64bit_var (unsigned long long *ptr,
+			 unsigned long long value)
+{
+	__set_64bit(ptr,ll_low(value), ll_high(value));
+}
+
+#define set_64bit(ptr,value) \
+(__builtin_constant_p(value) ? \
+ __set_64bit_constant(ptr, value) : \
+ __set_64bit_var(ptr, value) )
+
+#define _set_64bit(ptr,value) \
+(__builtin_constant_p(value) ? \
+ __set_64bit(ptr, (unsigned int)(value), (unsigned int)((value)>>32ULL) ) : \
+ __set_64bit(ptr, ll_low(value), ll_high(value)) )
+
+/*
+ * Note: no "lock" prefix even on SMP: xchg always implies lock anyway
+ * Note 2: xchg has side effect, so that attribute volatile is necessary,
+ *	  but generally the primitive is invalid, *ptr is output argument. --ANK
+ */
+static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
+{
+	switch (size) {
+		case 1:
+			__asm__ __volatile__("xchgb %b0,%1"
+				:"=q" (x)
+				:"m" (*__xg(ptr)), "0" (x)
+				:"memory");
+			break;
+		case 2:
+			__asm__ __volatile__("xchgw %w0,%1"
+				:"=r" (x)
+				:"m" (*__xg(ptr)), "0" (x)
+				:"memory");
+			break;
+		case 4:
+			__asm__ __volatile__("xchgl %0,%1"
+				:"=r" (x)
+				:"m" (*__xg(ptr)), "0" (x)
+				:"memory");
+			break;
+	}
+	return x;
+}
+
+/*
+ * Atomic compare and exchange.  Compare OLD with MEM, if identical,
+ * store NEW in MEM.  Return the initial value in MEM.  Success is
+ * indicated by comparing RETURN with OLD.
+ */
+
+#ifdef CONFIG_X86_CMPXCHG
+#define __HAVE_ARCH_CMPXCHG 1
+
+static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
+				      unsigned long new, int size)
+{
+	unsigned long prev;
+	switch (size) {
+	case 1:
+		__asm__ __volatile__(LOCK_PREFIX "cmpxchgb %b1,%2"
+				     : "=a"(prev)
+				     : "q"(new), "m"(*__xg(ptr)), "0"(old)
+				     : "memory");
+		return prev;
+	case 2:
+		__asm__ __volatile__(LOCK_PREFIX "cmpxchgw %w1,%2"
+				     : "=a"(prev)
+				     : "q"(new), "m"(*__xg(ptr)), "0"(old)
+				     : "memory");
+		return prev;
+	case 4:
+		__asm__ __volatile__(LOCK_PREFIX "cmpxchgl %1,%2"
+				     : "=a"(prev)
+				     : "q"(new), "m"(*__xg(ptr)), "0"(old)
+				     : "memory");
+		return prev;
+	}
+	return old;
+}
+
+#define cmpxchg(ptr,o,n)\
+	((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),\
+					(unsigned long)(n),sizeof(*(ptr))))
+    
+#else
+/* Compiling for a 386 proper.	Is it worth implementing via cli/sti?  */
 #endif
+
+#endif /* __ARCH_I386_ATOMIC__ */
diff -ruNp linux/include/asm-i386/system.h linux.patch/include/asm-i386/system.h
--- linux/include/asm-i386/system.h	Sun Dec 31 11:10:16 2000
+++ linux.patch/include/asm-i386/system.h	Mon Jan  1 23:27:58 2001
@@ -4,7 +4,6 @@
 #include <linux/config.h>
 #include <linux/kernel.h>
 #include <asm/segment.h>
-#include <linux/bitops.h> /* for LOCK_PREFIX */
 
 #ifdef __KERNEL__
 
@@ -123,136 +122,6 @@ static inline unsigned long get_limit(un
 }
 
 #define nop() __asm__ __volatile__ ("nop")
-
-#define xchg(ptr,v) ((__typeof__(*(ptr)))__xchg((unsigned long)(v),(ptr),sizeof(*(ptr))))
-
-#define tas(ptr) (xchg((ptr),1))
-
-struct __xchg_dummy { unsigned long a[100]; };
-#define __xg(x) ((struct __xchg_dummy *)(x))
-
-
-/*
- * The semantics of XCHGCMP8B are a bit strange, this is why
- * there is a loop and the loading of %%eax and %%edx has to
- * be inside. This inlines well in most cases, the cached
- * cost is around ~38 cycles. (in the future we might want
- * to do an SIMD/3DNOW!/MMX/FPU 64-bit store here, but that
- * might have an implicit FPU-save as a cost, so it's not
- * clear which path to go.)
- */
-extern inline void __set_64bit (unsigned long long * ptr,
-		unsigned int low, unsigned int high)
-{
-__asm__ __volatile__ (
-	"1:	movl (%0), %%eax;
-		movl 4(%0), %%edx;
-		cmpxchg8b (%0);
-		jnz 1b"
-	::		"D"(ptr),
-			"b"(low),
-			"c"(high)
-	:
-			"ax","dx","memory");
-}
-
-extern void inline __set_64bit_constant (unsigned long long *ptr,
-						 unsigned long long value)
-{
-	__set_64bit(ptr,(unsigned int)(value), (unsigned int)((value)>>32ULL));
-}
-#define ll_low(x)	*(((unsigned int*)&(x))+0)
-#define ll_high(x)	*(((unsigned int*)&(x))+1)
-
-extern void inline __set_64bit_var (unsigned long long *ptr,
-			 unsigned long long value)
-{
-	__set_64bit(ptr,ll_low(value), ll_high(value));
-}
-
-#define set_64bit(ptr,value) \
-(__builtin_constant_p(value) ? \
- __set_64bit_constant(ptr, value) : \
- __set_64bit_var(ptr, value) )
-
-#define _set_64bit(ptr,value) \
-(__builtin_constant_p(value) ? \
- __set_64bit(ptr, (unsigned int)(value), (unsigned int)((value)>>32ULL) ) : \
- __set_64bit(ptr, ll_low(value), ll_high(value)) )
-
-/*
- * Note: no "lock" prefix even on SMP: xchg always implies lock anyway
- * Note 2: xchg has side effect, so that attribute volatile is necessary,
- *	  but generally the primitive is invalid, *ptr is output argument. --ANK
- */
-static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
-{
-	switch (size) {
-		case 1:
-			__asm__ __volatile__("xchgb %b0,%1"
-				:"=q" (x)
-				:"m" (*__xg(ptr)), "0" (x)
-				:"memory");
-			break;
-		case 2:
-			__asm__ __volatile__("xchgw %w0,%1"
-				:"=r" (x)
-				:"m" (*__xg(ptr)), "0" (x)
-				:"memory");
-			break;
-		case 4:
-			__asm__ __volatile__("xchgl %0,%1"
-				:"=r" (x)
-				:"m" (*__xg(ptr)), "0" (x)
-				:"memory");
-			break;
-	}
-	return x;
-}
-
-/*
- * Atomic compare and exchange.  Compare OLD with MEM, if identical,
- * store NEW in MEM.  Return the initial value in MEM.  Success is
- * indicated by comparing RETURN with OLD.
- */
-
-#ifdef CONFIG_X86_CMPXCHG
-#define __HAVE_ARCH_CMPXCHG 1
-
-static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
-				      unsigned long new, int size)
-{
-	unsigned long prev;
-	switch (size) {
-	case 1:
-		__asm__ __volatile__(LOCK_PREFIX "cmpxchgb %b1,%2"
-				     : "=a"(prev)
-				     : "q"(new), "m"(*__xg(ptr)), "0"(old)
-				     : "memory");
-		return prev;
-	case 2:
-		__asm__ __volatile__(LOCK_PREFIX "cmpxchgw %w1,%2"
-				     : "=a"(prev)
-				     : "q"(new), "m"(*__xg(ptr)), "0"(old)
-				     : "memory");
-		return prev;
-	case 4:
-		__asm__ __volatile__(LOCK_PREFIX "cmpxchgl %1,%2"
-				     : "=a"(prev)
-				     : "q"(new), "m"(*__xg(ptr)), "0"(old)
-				     : "memory");
-		return prev;
-	}
-	return old;
-}

From - Thu Nov 08 21:14:56 2018
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From: "David S. Miller" <davem@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] move xchg/cmpxchg to atomic.h
Date: Tue, 2 Jan 2001 01:03:48 -0800
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	Grundler on Tue, 2 Jan 2001 00:11:57 -0800 (PST))
Xref: news.gmane.org gmane.linux.ports.parisc:9063

   Date: 	Tue, 2 Jan 2001 00:11:57 -0800 (PST)
   From: Grant Grundler <grundler@cup.hp.com>

   Fundemental problem is parisc only supports one atomic operation
   (LDCW/LDCD) and uses spinlocks for all atomic operations including
   xchg/cmpxchg.

Using spinlocks for the implementation of xchg on SMP might be
problematic.

If you implement things like this, several subtle things might
break.  For example, there is code in a few spots (or, at least at one
time there was) which assumed the update of the datum itself is atomic
and uses this assumption to do lock-free read-only accesses of the
data.

If you require an external agent (f.e. your spinlock) because you
cannot implement xchg with a real atomic sequence, this breaks the
above assumptions.

It is very common to do things like:

producer(elem)
{
	elem->next = list->head;
	xchg(&list->head, elem);
}

consumer()
{
	local_list = xchg(&list->head, NULL);
	for_each(elem, local_list)
		do_something(elem);
}

In fact we had code excatly like this in the buffer cache at one
point in time.

Later,
David S. Miller
davem@redhat.com


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In-reply-to: <20010102112242.A7040@parcelfarce.linux.theplanet.co.uk> (message
	from Matthew Wilcox on Tue, 2 Jan 2001 11:22:42 +0000)
Xref: news.gmane.org gmane.linux.ports.parisc:9064

   Date: Tue, 2 Jan 2001 11:22:42 +0000
   From: Matthew Wilcox <matthew@wil.cx>

   We really can't.  We _only_ have load-and-zero.  And it has to be
   16-byte aligned.  xchg() is just not something the CPU implements.

Oh bugger... you do have real problems.

Later,
David S. Miller
davem@redhat.com


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From: Alan Modra <alan@linuxcare.com.au>
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On Thu, 21 Dec 2000, Matt Taggart wrote:

> /home/al-76/puffin/palinux/gcc/gcc/varasm.c: In function `assemble_integer':  
> /home/al-76/puffin/palinux/gcc/gcc/varasm.c:1910: parse error before `0'  

The culprit is line 100 of config/pa/pa64.h, currently

  while 0

It should be

  while (0)

-- 
Linuxcare.  Support for the Revolution.


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [PATCH] move xchg/cmpxchg to atomic.h
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On Tue, Jan 02, 2001 at 01:03:48AM -0800, David S. Miller wrote:
> If you require an external agent (f.e. your spinlock) because you
> cannot implement xchg with a real atomic sequence, this breaks the
> above assumptions.

We really can't.  We _only_ have load-and-zero.  And it has to be 16-byte
aligned.  xchg() is just not something the CPU implements.

-- 
Revolutions do not require corporate support.


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From: Andi Kleen <ak@suse.de>
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Subject: Re: [PATCH] move xchg/cmpxchg to atomic.h
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On Tue, Jan 02, 2001 at 11:22:42AM +0000, Matthew Wilcox wrote:
> On Tue, Jan 02, 2001 at 01:03:48AM -0800, David S. Miller wrote:
> > If you require an external agent (f.e. your spinlock) because you
> > cannot implement xchg with a real atomic sequence, this breaks the
> > above assumptions.
> 
> We really can't.  We _only_ have load-and-zero.  And it has to be 16-byte
> aligned.  xchg() is just not something the CPU implements.

The network code relies on the reader-xchg semantics David described in 
several places.

-Andi


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From: Philipp Rumpf <prumpf@jcsbs.lanobis.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] performance computing review of a180
Date: Fri, 14 May 1999 07:39:13 +0000
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>by popular request, here are some key bits from the review of the a180 in this
>month's _unix's review's performance computing_:

I think there are some bits there that are interesting.

> (the machine as test was priced at $16,568. it had one cpu (lc), 1gb ram, two
> 4gb drives, and hp-ux 11.0)

1 GB RAM sounds a bit much if you later whine about the RAM being too
expensive. Furthermore, they seem to have enough money to buy 1 GB of
RAM, but not enough to buy the A180C version, which scores at 130% of
the A180 in SPECweb96 (650 vs 500) according to HP's docs.

> "most recent non-intel servers have 64-bit cpus, but the core of the a-class
> is hp's pa-7300, a 32-bit processor. this may seem a bit retro, but there is
> little about internet services that actually benefits from 64-bit processor"

What is a bit retro about the 7300LC, according to HP's website, is it
is manufactured in 0.50 um-process. This could be the reason for it being
clocked comparably low at 180 MHz.

>"the only printed documentation that ships with the a-class is a small booklet
>showing basic cable connections and outlining the customary safety and
>regulatory statements. all other documentation is either part of the installed
>hp-ux os (for example, online manual pages...additionally, the hp instant
>information cd-rom, a collection of documentation is available as a $300
>option. thus, to install the a-class, it is cubersome (though necessary) to
>have another system on hand to various documentation web sites."

This attitude, if it is more common, could make Linux on the A180 a lot more
popular. Linux is fairly standardized, you can get most Documentation as
hardcopy or read it on an x86 box etc.

>finally, the last thing before the closing comments is a bit on performance:
>"...the 180-mhz a-class also produces spec scores lower than the 400mhz
>pentium ii xeon processor, which is fairly common in intel-based servers.
>interestingly, hp has chosen not to publish, at least at press time, benchmark
>results for the a-class for the specweb96 benchmark, which would be an obvious
>choice for a web-specific system design...." its spec scores are then compared
>to several other 64-bit systems..

I don't know if the information HP gave us was publically available before,
but it gives SPECweb96 results.

> "...for example, the system memory is comparatively expensive, evidenced by
> the price of the system we tested. thus, while the a-class hits the design
> mark for high-density rackmount servers (20 in a two-meter rack), more-robust
> configurations are pricey. as a result, design gets a two-flag rating on our
> scale--average."

> "...expansion is not a big issue...the version of bind should have been
> upgraded to bind 8, and not including sendmail 8.9 we feel is a
> mistake...performance is not a primary objective for hp with the a-class.."

This should be no problem with Linux.

>in short, they give it "poor" on installation and documentation, "average" on
>design, expandibility, performance, and *overall*, and "good" on operation.
>they basically give it a few nice compliments, then rag on the same things and
>more. more towards the negative side, overall.

sounds as there seems to be interest in Linux on the A180.


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From: Alan Modra <alan@linuxcare.com.au>
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On Fri, 22 Dec 2000, Richard Hirst wrote:

> had no cause to reload dp as that is always the callers responsibility.

Yes.  For hppa64, dp should be assumed trashed by any function call.
That means some further patches in entry.S are needed, which ought to be  
made #ifdef __LP64__

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: Jeffrey A Law <law@redhat.com>
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Subject: Re: PATCH: Adjust label usage count for new insns [was Re: pa reload 
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  In message <200012162038.PAA25535@hiauly1.hia.nrc.ca>you write:
  > 2000-12-14  John David Anglin  <dave@hiauly1.hia.nrc.ca>
  > 
  > 	* loop.c (add_label_notes): Increment the label usage count when
  > 	a note is added to an insn which refers to a CODE_LABEL.
  > 	* gcse.c (add_label_notes): Likewise.
Thanks.  Installed.

jeff



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> > We really can't.  We _only_ have load-and-zero.  And it has to be 16-byte
> > aligned.  xchg() is just not something the CPU implements.
> 
> The network code relies on the reader-xchg semantics David described in 
> several places.

I guess the network code will just have to change for 2.5. read_xchg_val()
can be a null macro for everyone else at least


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I have source code for HP's 64-bit millicode and am working on making
it compilable with our tool chain.  But the bigger question is where
do I put it?

Right now millicode is part of libgcc.a in top-of-branch gcc, but I
seem to recall some linker magic, and when/if that happens I don't
know where to put the millicode stuff.

Help?

	-Paul Bame


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> I have source code for HP's 64-bit millicode and am working on making
> it compilable with our tool chain.  But the bigger question is where
> do I put it?
> 
> Right now millicode is part of libgcc.a in top-of-branch gcc, but I
> seem to recall some linker magic, and when/if that happens I don't
> know where to put the millicode stuff.

Last time I looked the 64 bit port was still using the same milli
library as the 32 bit port.  Thus to integrate a 64 bit library,
some work would have to be done to the machine description.  There
are hooks to build asm code (see for example lib1funcs.asm and
lib2funcs.asm in config/pa).

Has HP contributed this code to the public domain?  Probably, Jeff
Law would be the one to contact to get integrated into the gcc mainline.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Paul Bame <bame@fc.hp.com>
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Subject: Re: [parisc-linux] where to put 64 bit libmilli?
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= Last time I looked the 64 bit port was still using the same milli
= library as the 32 bit port.

Yes -- leading to some very surprising 64-bit kernel failures
before I found this "feature".  This is a 64-bit parisc linux gcc bug.

= Thus to integrate a 64 bit library,
= some work would have to be done to the machine description.  There
= are hooks to build asm code (see for example lib1funcs.asm and
= lib2funcs.asm in config/pa).

I've played with this a bit before -- I did the first ELF version of
of 32-bit millicode.  But I'm not at all certain we want to
keep millicode in libgcc.a since there's also some parisc linker magic to
automatically link millicode when required -- because some makefiles
using ld -r break (like the Linux kernel build) unless they're hacked to
include an explicit reference to libgcc.a.

= Has HP contributed this code to the public domain?  Probably, Jeff
= Law would be the one to contact to get integrated into the gcc mainline.

I have permission to sanitize and (L?)GPLize it.  I'm planning to
attempt the basic integration and then let Jeff or someone tell me
how I screwed it up :-)

	-Paul Bame


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [PATCH] move xchg/cmpxchg to atomic.h
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David,
Sorry for being dense - but I don't see the problem in using
a spinlock to implement xchg(). The example algorithm looks broken.
Or am I missing something obvious here?

"David S. Miller" wrote:
> It is very common to do things like:
> 
> producer(elem)
> {
> 	elem->next = list->head;
> 	xchg(&list->head, elem);
> }
> 
> consumer()
> {
> 	local_list = xchg(&list->head, NULL);
> 	for_each(elem, local_list)
> 		do_something(elem);
> }

producer() looks broken. The problem is two producers can race and
one will put the wrong value of list->head in elem->next.

I think prepending to list->head needs to either be protected by a spinlock
or be a per-cpu data structure. consumer() should be ok assuming the code
can tolerate picking up "late arrivals" in the next pass.
Or am I missing something obvious here?

It's worse if producer were inlined: the arch specific optimisers might
re-order the "elem->next = list->head" statement to be quite a bit more
than 1 or 2 cycles from the xchg() operation.

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Roman Zippel <zippel@fh-brandenburg.de>
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Subject: Re: [PATCH] move xchg/cmpxchg to atomic.h
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Hi,

On Tue, 2 Jan 2001, David S. Miller wrote:

>    We really can't.  We _only_ have load-and-zero.  And it has to be
>    16-byte aligned.  xchg() is just not something the CPU implements.
> 
> Oh bugger... you do have real problems.

For 2.5 we could move all the atomic functions from atomic.h, bitops.h,
system.h and give them a common interface. We could also give them a new
argument atomic_spinlock_t, which is a normal spinlock, but only used on
architectures which need it, everyone else can "optimize" it away. I think
one such lock per major subsystem should be enough, as the lock is only
held for a very short time, so contentation should be no problem.
Anyway, this had the huge advantage that we could use the complete 32/64
bit of the atomic value, e.g. for pointer operations.

bye, Roman



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From: Jeffrey A Law <law@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] where to put 64 bit libmilli?
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  In message <E14DXa6-0005xq-00@noam.fc.hp.com>you write:
  > I have permission to sanitize and (L?)GPLize it.  I'm planning to
  > attempt the basic integration and then let Jeff or someone tell me
  > how I screwed it up :-)
BTW, if you dig around the GCC CVS tree, you'll find 32bit millicode ready
to work with GNU tools. (gcc/config/pa/lib1funcs.asm)  I don't know if that
would be useful to you or not.

Moving it out of libgcc may or may not make sense.  If I recall the key thing
to remember is that you want copies of those routines in each shared library,
otherwise you can lose in unpleasant ways.  An alternative is to make the
millicode routines themselves into a shared library and everyone links against.

jeff


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: where to put 64 bit libmilli?
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On Tue, 2 Jan 2001, Paul Bame wrote:

> I have source code for HP's 64-bit millicode and am working on making
> it compilable with our tool chain.  But the bigger question is where
> do I put it?
> 
> Right now millicode is part of libgcc.a in top-of-branch gcc, but I
> seem to recall some linker magic, and when/if that happens I don't
> know where to put the millicode stuff.

Distributing libmilli with gcc makes sense as it is gcc that makes use of
the millicode routines, however there's a chicken and egg problem with the
linker.  Once we enable the automagic libmilli search, ld will complain if
it can't find libmilli.a.  That will make the binutils test suite fail 
until gcc is installed.  Hmm, I suppose binutils could install a dummy
libmilli.a to get around that problem.

Anyway, the place to put the source is gcc/config/pa/, installing
libmilli.a to ${prefix}/lib/ for native tool-chains and to
${prefix}/${target}/lib for cross tool-chains.  Err, come to think of it,
the 64 bit linker doesn't yet have the libmilli.a search capability.
Also, we probably want to name the 64 bit millicode library libmilli64.a
so a multi-target linker can choose the right millicode library.

So until I get my act together and find time for some binutils/gcc work,
it may be best to continue putting the millicode functions into libgcc.

Alan
-- 
Linuxcare.  Support for the Revolution.


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Am 14.05.1999 um 07:39:13 +0000 schrieb Philipp Rumpf folgendes:

> > "...expansion is not a big issue...the version of bind should have been
> > upgraded to bind 8, and not including sendmail 8.9 we feel is a
> > mistake...performance is not a primary objective for hp with the a-clas=
s.."
>=20
> This should be no problem with Linux.

Neither with 10.x or 11.x, BTW

--=20
Ralf Hildebrandt <R.Hildebrandt@tu-bs.de> www.stahl.bau.tu-bs.de/~hildeb
Applying computer technology is simply finding the right wrench to
pound in the correct screw.=20


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] where to put 64 bit libmilli?
Date: Wed, 3 Jan 2001 12:46:52 +1100 (EST)
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To: Jeffrey A Law <law@redhat.com>
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On Tue, 2 Jan 2001, Jeffrey A Law wrote:

> Moving it out of libgcc may or may not make sense.  If I recall the key thing
> to remember is that you want copies of those routines in each shared library,
> otherwise you can lose in unpleasant ways.  An alternative is to make the
> millicode routines themselves into a shared library and everyone links against.

The real reason that we currently need separate millicode routines for
each shared lib is that linkage to millicode functions is different than
for normal functions.  In particular, you don't want to load r19 (32 bit
case) or r27 (64 bit case) when calling millicode.  Therefore, a shared
millicode lib would require special .plt entries.  Not too hard to do,
just a bit messy.

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] where to put 64 bit libmilli?
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On Wed, Jan 03, 2001 at 12:46:52PM +1100, Alan Modra wrote:
> The real reason that we currently need separate millicode routines for
> each shared lib is that linkage to millicode functions is different than
> for normal functions.  In particular, you don't want to load r19 (32 bit

is there a good reason to keep the millicode calling conventions?

-- 
Revolutions do not require corporate support.


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On Wed, 3 Jan 2001, Matthew Wilcox wrote:

> is there a good reason to keep the millicode calling conventions?

It's faster and doesn't require that gcc reload gp.

-- 
Linuxcare.  Support for the Revolution.


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  In message <Pine.LNX.4.21.0101031235310.24351-100000@front.linuxcare.com.au>y
ou write:
  > The real reason that we currently need separate millicode routines for
  > each shared lib is that linkage to millicode functions is different than
  > for normal functions.  In particular, you don't want to load r19 (32 bit
  > case) or r27 (64 bit case) when calling millicode.  Therefore, a shared
  > millicode lib would require special .plt entries.  Not too hard to do,
  > just a bit messy.
So what happens in this case.

Pretend shared library A references $$div from the millicode routines.  Also
assume that the main program does not reference $$div.  Also assume that
the shared library is _not_ referenced on the link line for the main
program, but instead is sucked in via dl_open calls.

The shared library will have an undefined reference for $$div which can't
be satisfied and will terminate the application if we execute a path in
the shared library which calls $$div.


jeff


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Subject: Re: [parisc-linux] where to put 64 bit libmilli?
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On Tue, 2 Jan 2001, Jeffrey A Law wrote:

> 
> 
>   In message <Pine.LNX.4.21.0101031235310.24351-100000@front.linuxcare.com.au>y
> ou write:
>   > The real reason that we currently need separate millicode routines for
>   > each shared lib is that linkage to millicode functions is different than
>   > for normal functions.  In particular, you don't want to load r19 (32 bit
>   > case) or r27 (64 bit case) when calling millicode.  Therefore, a shared
>   > millicode lib would require special .plt entries.  Not too hard to do,
>   > just a bit messy.
> So what happens in this case.
> 
> Pretend shared library A references $$div from the millicode routines.  Also
> assume that the main program does not reference $$div.  Also assume that
> the shared library is _not_ referenced on the link line for the main
> program, but instead is sucked in via dl_open calls.

Ah, but that's where the automagic linker search for libmilli come into
play.  Effectively, libmilli is always mentioned on the "command line"

> The shared library will have an undefined reference for $$div which can't
> be satisfied and will terminate the application if we execute a path in
> the shared library which calls $$div.
> 
> 
> jeff
> 

-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] where to put 64 bit libmilli?
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  In message <Pine.LNX.4.21.0101031509470.24351-100000@front.linuxcare.com.au>y
ou write:
  > Ah, but that's where the automagic linker search for libmilli come into
  > play.  Effectively, libmilli is always mentioned on the "command line"
Does this automagic search also happen when you build shared libraries?

[ Yes, I'm very familiar with HP's automagic searching for libmilli.a.  I also
  think it's a terrible mistake as a design decision. ]

jeff


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On Tue, 2 Jan 2001, Jeffrey A Law wrote:

>   In message <Pine.LNX.4.21.0101031509470.24351-100000@front.linuxcare.com.au>y
> ou write:
>   > Ah, but that's where the automagic linker search for libmilli come into
>   > play.  Effectively, libmilli is always mentioned on the "command line"
> Does this automagic search also happen when you build shared libraries?

Yes.  shared libs thus get their own copy of millicode routines.

> [ Yes, I'm very familiar with HP's automagic searching for libmilli.a.  I also
>   think it's a terrible mistake as a design decision. ]

I'm not particularly enthusiastic about the idea either.  It seemed to be
the best solution in the face of a number of packages that "know" libgcc
isn't needed when linking certain programs.  eg. linux kernel, binutils
testsuite.  The alternatives are
  a) fix all the affected packages
  b) modify linker scripts
  c) magic inbuilt linker behaviour.

a) has the unfortunate effect of making hppa seem like the ugly duckling,
at least until all affected packages on the planet are fixed.
b) doesn't work with custom linker scripts.

I'm all ears for a better solution.

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: Greg Ingram <ingram@symsys.com>
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Subject: [parisc-linux] [newbie] C100 Support?
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Gentlemen,

I have an opportunity to pick up a C100.  I've perused the website and
searched some of the mail archives.  Unfortunately, since I don't have the
machine yet and don't know anything about the platform, I haven't really
found the answers to my questions, which are:

Is it supported?  Does ethernet work?  Do the graphics work?  I'm led to
believe this model will drive an ordinary PC monitor.  Is that right?  Is
the C100 a 64-bit machine?

Regards,

- Greg



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Greg Ingram wrote:
> Is it supported?  Does ethernet work?  Do the graphics work?  I'm led to
> believe this model will drive an ordinary PC monitor.  Is that right?  Is
> the C100 a 64-bit machine?

yes (mostly), yes, not yet (afaik), yes, no.

grant


Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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  In message <Pine.LNX.4.21.0101031532370.24351-100000@front.linuxcare.com.au>y
  > I'm not particularly enthusiastic about the idea either.  It seemed to be
  > the best solution in the face of a number of packages that "know" libgcc
  > isn't needed when linking certain programs.  eg. linux kernel, binutils
  > testsuite.  The alternatives are
  >   a) fix all the affected packages
  >   b) modify linker scripts
  >   c) magic inbuilt linker behaviour.
But I would consider those very special cases and wouldn't want to pollute
the linker to work around those special cases.

The easiest (to me) solution is to put the routines into the system C
library.  You'd drop the special millcode conventions, but that's a
small price given that the only ones you probably call with any
regularity are div/mod in which case the cost of reloading the pic
registers is dwarfed by cost of the divide.

Then for the kernel you just put the needed routines (probably just
$$div, $$divU, $$rem, $$remU) into arch/parisc/support.S.

jeff


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On Fri, 14 May 1999, Tom Javen wrote:

> On Wed, 12 May 1999, Matthew Wilcox wrote:
> 
> > On Wed, May 12, 1999 at 01:00:04PM -0700, Grant Grundler wrote:
> > > Mathew can also download and try to install the PA-mklinux.
> > > I have this running on a 712/60 now. I suggest this because
> > > I don't know how accessible HP-UX bits are to the general public.
> > > HP-UX is usually distributed on CD-ROM these days.
> > 
> > Alas, no.  The 715/33 is the one machine that mklinux does not support;
> > I looked at that about 6 months ago.
> Have you looked at OpenBSD ?

I don't know wether he did. But I was unable to find anything beyond HP-UX
to run on the HP 715/33 hardware. So I am hoping this machine will join
the TUX family before the end of this year. (Not intended to push anyone
but I am rather optimistic now some of the persons with intimate kernel
knowledge are part of the team.)

Hugo.

-- 
Hugo van der Kooij; Oranje Nassaustraat 16; 3155 VJ  Maasland
hvdkooij@caiw.nl		 http://www.caiw.nl/~hvdkooij
-------------------------------------------------------------
Use of any of my email addresses for unsollicited (commercial)
    email is a clear intrusion of my privacy and illegal!


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On Wed, 3 Jan 2001, Jeffrey A Law wrote:

> The easiest (to me) solution is to put the routines into the system C
> library.  You'd drop the special millcode conventions, but that's a

How about $$dyncall?  Wouldn't loading r19/r29 break this function?  I'm
thinking of the case where $$dyncall is passed the address of a local
function rather than a plabel.  We wouldn't want to load r19/r29 with the
value for a shared libgcc.

> small price given that the only ones you probably call with any
> regularity are div/mod in which case the cost of reloading the pic
> registers is dwarfed by cost of the divide.

-- 
Linuxcare.  Support for the Revolution.


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> On Wed, 3 Jan 2001, Jeffrey A Law wrote:
> 
> > The easiest (to me) solution is to put the routines into the system C
> > library.  You'd drop the special millcode conventions, but that's a
> 
> How about $$dyncall?  Wouldn't loading r19/r29 break this function?  I'm
> thinking of the case where $$dyncall is passed the address of a local
> function rather than a plabel.  We wouldn't want to load r19/r29 with the
> value for a shared libgcc.

Could this and maybe some of the other short milli routines be compiler
"builtins"?  This would allow inlining.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Thu, 4 Jan 2001, John David Anglin wrote:

>[about $$dyncall]
> Could this and maybe some of the other short milli routines be compiler
> "builtins"?  This would allow inlining.

I don't see why not.  It could be done by expanding all the $$dyncall
references in pa.c and pa.md

-- 
Linuxcare.  Support for the Revolution.


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For hppa64-linux it appears the only millicode we're using is $$div*
and $$rem*, not $$dyncall nor $sh_func_adrs.  Let me know if I should
be porting anything other thatn div/rem -- thanks.

	-Paul Bame


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From: Jeffrey A Law <law@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] where to put 64 bit libmilli?
Date: Thu, 04 Jan 2001 10:06:49 -0700
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  In message <E14EDNR-00024o-00@noam.fc.hp.com>you write:
  > 
  > For hppa64-linux it appears the only millicode we're using is $$div*
  > and $$rem*, not $$dyncall nor $sh_func_adrs.  Let me know if I should
  > be porting anything other thatn div/rem -- thanks.
That sounds correct to me.  The PA64 calling conventions don't need
$$dyncall or $sh_func_addrs.

jeff


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From: Jeffrey A Law <law@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] where to put 64 bit libmilli?
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  In message <200101040618.BAA05609@hiauly1.hia.nrc.ca>you write:
  > > How about $$dyncall?  Wouldn't loading r19/r29 break this function?  I'm
  > > thinking of the case where $$dyncall is passed the address of a local
  > > function rather than a plabel.  We wouldn't want to load r19/r29 with the
  > > value for a shared libgcc.
  > 
  > Could this and maybe some of the other short milli routines be compiler
  > "builtins"?  This would allow inlining.
Yes, though it's not clear how much of a win it is for PA32, it might even
be a loss.  Hard to guess.  Someone would have to benchmark it.

For PA64 the indirect calling sequence is significantly simpler and is
emitted inline, hence we don't need/use $$dyncall for PA64.

jeff


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From: Jeffrey A Law <law@redhat.com>
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Subject: Re: [parisc-linux] where to put 64 bit libmilli?
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  In message <Pine.LNX.4.21.0101041608490.15554-100000@front.linuxcare.com.au>y
ou write:
  > On Wed, 3 Jan 2001, Jeffrey A Law wrote:
  > 
  > > The easiest (to me) solution is to put the routines into the system C
  > > library.  You'd drop the special millcode conventions, but that's a
  > 
  > How about $$dyncall?  Wouldn't loading r19/r29 break this function?  I'm
  > thinking of the case where $$dyncall is passed the address of a local
  > function rather than a plabel.  We wouldn't want to load r19/r29 with the
  > value for a shared libgcc.
$$dyncall is only used for PA32 -- what ABI are you using for PA32?  The
existing ones don't require $dp or $gp to be loaded by the caller -- they're
handled in the stub between the caller & callee.


jeff


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From: Paul Bame <bame@fc.hp.com>
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Subject: Re: [parisc-linux] where to put 64 bit libmilli?
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FYI I just committed the 64-bit millicode to the CVS on
puffin.external.hp.com adding it to libgcc.a as with 32-bit parisc gcc.


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From: Cary Coutant <cary@cup.hp.com>
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Subject: Re: [parisc-linux] where to put 64 bit libmilli?
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>For PA64 the indirect calling sequence is significantly simpler and is
>emitted inline, hence we don't need/use $$dyncall for PA64.

Even for PA-32, $$dyncall should be simple enough to emit inline. There 
were two reasons why we didn't do it at first:

1. Our compilers emitted code that was compatible with both MPE and 
HP-UX. Since function pointers had different representations in these two 
runtimes, $$dyncall had to check a low-order bit.

2. After we implemented shared libraries on HP-UX, function pointers 
could be either "internal" or "external", and $$dyncall had to check.

Eventually, HP-UX has moved to a runtime where function pointers are 
either all internal (for a statically-bound program) or all external (for 
a dynamically-bound program). We now have compiler options to generate 
the appropriate inline sequence for either model.

Linux shouldn't need to be concerned with either of these cases. If 
you're using $$dyncall for the 32-bit runtime, I strongly suggest that 
you change the compiler.

-cary


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] where to put 64 bit libmilli?
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Cary Coutant wrote:
> Linux shouldn't need to be concerned with either of these cases. If 
> you're using $$dyncall for the 32-bit runtime, I strongly suggest that 
> you change the compiler.

Where does support for HPUX built apps fit into the picture?

I thought a long term goal is to support HPUX built apps to run under
parisc-linux. Eg it would be really cool if we could run the HPUX
X11 server...

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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> >hp-ux os (for example, online manual pages...additionally, the hp instant
> >information cd-rom, a collection of documentation is available as a $300
> >option. thus, to install the a-class, it is cubersome (though necessary) to
> >have another system on hand to various documentation web sites."
> 
> This attitude, if it is more common, could make Linux on the A180 a lot more
> popular. Linux is fairly standardized, you can get most Documentation as
> hardcopy or read it on an x86 box etc.

Most of the instant information cdrom is online at www.docs.hp.com.

Rich


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From: Cary Coutant <cary@cup.hp.com>
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Subject: Re: [parisc-linux] where to put 64 bit libmilli?
Date: Thu, 4 Jan 2001 13:20:04 -0800
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Cc: <law@redhat.com>, "John David Anglin" <dave@hiauly1.hia.nrc.ca>,
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>Where does support for HPUX built apps fit into the picture?
>
>I thought a long term goal is to support HPUX built apps to run under
>parisc-linux. Eg it would be really cool if we could run the HPUX
>X11 server...

If they're built on HP-UX, they will already have been linked with the 
HP-UX millicode library.

-cary


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] where to put 64 bit libmilli?
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To: Jeffrey A Law <law@redhat.com>
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On Thu, 4 Jan 2001, Jeffrey A Law wrote:

>   In message <Pine.LNX.4.21.0101041608490.15554-100000@front.linuxcare.com.au>y
> ou write:
>   > On Wed, 3 Jan 2001, Jeffrey A Law wrote:
>   > 
>   > > The easiest (to me) solution is to put the routines into the system C
>   > > library.  You'd drop the special millcode conventions, but that's a
>   > 
>   > How about $$dyncall?  Wouldn't loading r19/r29 break this function?  I'm
>   > thinking of the case where $$dyncall is passed the address of a local
>   > function rather than a plabel.  We wouldn't want to load r19/r29 with the
>   > value for a shared libgcc.
> $$dyncall is only used for PA32 -- what ABI are you using for PA32?  The
> existing ones don't require $dp or $gp to be loaded by the caller -- they're
> handled in the stub between the caller & callee.

The ABI hasn't changed.  r19 is loaded by the stub for a call into a
shared lib function.  That's a problem if we ever wanted to put $$dyncall
into a shared lib and make it available externally, as this particular
call should _not_ load r19.  ie. At least for $$dyncall, we can't use
standard hppa calling conventions.

-- 
Linuxcare.  Support for the Revolution.


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] spinlocks
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I noticed while I was implementing rw semaphores that i'd basically
implemented spinlocks, so I went to look at our spinlock implementation,
just to check my `sentry' was the same as a spinlock.

I think our spinlock implementation is suboptimal.  Here it is:

#define spin_lock(x) \
        do { while(__ldcw(&(x)->lock) == 0); } while(0)

While the spinlock is contended, the processor will be doing `ldcw' insns,
just as fast as it can.  Now imagine we have two processors waiting
for the lock.  The first will load the word (pulling the value across
the bus), clear the word (telling all other cpus to invalidate that
cache line).  Then the second one loads the word, clears the word... in
other words the bus is now fully occupied while these processors spin.
It'll certainly slow down the system and may grind the system to a
complete halt (someone said the Runway bus was't fair, so if the top two
processors are contending for the lock, and the lowest priority processor
has it, it may not be able to make progress and release the lock).

A better design is to repeatedly load the value until it becomes non-zero,
and only then try to ldcw it.  This way, all processors have a read-only
copy of the cache line and checking its value has no effect on the bus.
In C, this could be implemented as:

	while (__ldcw(&(x)->lock) == 0)
		while (((volatile int)(x)->lock) == 0) ;

So here's the code I originally came up with for my sentry, which I'd like
people to consider for the spinlock.

extern inline void __acquire_sentry(struct rw_semaphore *sem)
{
	int sentry;
	__asm__("
	b,n	1f
2:	ldw	0(%1), %0
	comib,<> 0, %0, 2b
	nop
1:	ldcw	0(%1), %0
	comib,<> 0, %0, 2b
	nop"
	: "=r" (sentry) : "r" (sem));
}

I tried rearranging it to take advantage of the delay slot, and it came
out like this:

extern inline void spin_lock(struct spinlock *lock)
{
	int sentry;
	__asm__("
	b	1f
	ldcw	0(%1), %0
2:      comib,<>,N 0, %0, 2b
	ldw	0(%1), %0
	ldcw	0(%1), %0
1:      comib,<>,N 0, %0, 2b
	ldw	0(%1), %0"
	: "=r" (sentry) : "r" (sem));
}

which doesn't seem like an improvement to me.  Still, I'm sure other people
are better at optimising PA-RISC assembler than I am.  How important is using
the delay slot these days with the highly out-of-order CPUs?

On other architectures, ELF sections (.text.lock) are used to out-of-line
the slow case.  But given that we only have a limited range on the comib
insn (+/- 8k), we would need a way to get the out-of-line case positioned
close to the function which was calling it.  BTW, using the C definition,
the compiler does the out-of-lining for us!  Using -O2 on the following
simple program:

struct sl {
        int lock;
};

int z; /* protected by the sl */

struct sl y;

#define spin_lock(x) do { \
        while (__ldcw (&(x)->lock) == 0) \
                while (((volatile int)(x)->lock) == 0) ; } while (0)

#define spin_unlock(x) \
        do { (x)->lock = 1; } while(0)

int main(void)
{
        spin_lock(&y);
        z = 65473659;
        spin_unlock(&y);
        return z;
}

gives:

#APP
        ldcw 0(%r20),%r19
#NO_APP
        comib,= 0,%r19,.L20
        ldil L'65473659,%r28
.L21:
        addil LR'z-$global$,%r27
        ldo R'65473659(%r28),%r28
        stw %r28,RR'z-$global$(%r1)
        ldi 1,%r19
        bv %r0(%r2)
        stw %r19,RR'y-$global$(%r22)
.L20:
        copy %r20,%r21
        ldw 0(%r21),%r20
.L12:
        comib,= 0,%r20,.L12
        nop
#APP
        ldcw 0(%r21),%r19
#NO_APP
        comib,<> 0,%r19,.L21
        ldil L'65473659,%r28
        b,n .L12

Remember that we don't care how inefficient the code is in the case of
a contended spinlock.  The compiler beats me rather handily -- 2 insns for
an uncontended spinlock versus my 4 (3 if you don't count nops or nullified
insns).

-- 
Revolutions do not require corporate support.


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] semaphores
Date: Fri, 5 Jan 2001 17:34:22 +0000
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ok, i've completely rewritten the semaphore code.  please review.

diff -urNX dontdiff linux-cvs/arch/parisc/kernel/semaphore.c linux-mine/arch/parisc/kernel/semaphore.c
--- linux-cvs/arch/parisc/kernel/semaphore.c	Sun Dec 31 01:50:27 2000
+++ linux-mine/arch/parisc/kernel/semaphore.c	Fri Jan  5 17:05:49 2001
@@ -1,15 +1,9 @@
 /*
- * Just taken from alpha implementation.
- * This can't work well, perhaps.
- */
-/*
- *  Generic semaphore code. Buyer beware. Do your own
- * specific changes in <asm/semaphore-helper.h>
+ * Semaphore implementation Copyright (c) 2001 Matthew Wilcox
  */
 
 #include <linux/sched.h>
-#include <asm/semaphore-helper.h>
-#include <asm/atomic.h>	/* for xchg() definitions */
+#include <linux/spinlock.h>
 
 /*
  * Semaphores are implemented using a two-way counter:
@@ -43,198 +37,119 @@
  */
 void __up(struct semaphore *sem)
 {
-	wake_one_more(sem);
 	wake_up(&sem->wait);
 }
 
-/*
- * Perform the "down" function.  Return zero for semaphore acquired,
- * return negative for signalled out of the function.
- *
- * If called from __down, the return is ignored and the wait loop is
- * not interruptible.  This means that a task waiting on a semaphore
- * using "down()" cannot be killed until someone does an "up()" on
- * the semaphore.
- *
- * If called from __down_interruptible, the return value gets checked
- * upon return.  If the return value is negative then the task continues
- * with the negative value in the return register (it can be tested by
- * the caller).
- *
- * Either form may be used in conjunction with "up()".
- *
- */
-
-
-#define DOWN_HEAD(task_state)						\
-									\
-									\
-	current->state = (task_state);					\
-	add_wait_queue(&sem->wait, &wait);				\
-									\
-	/*								\
-	 * Ok, we're set up.  sem->count is known to be less than zero	\
-	 * so we must wait.						\
-	 *								\
-	 * We can let go the lock for purposes of waiting.		\
-	 * We re-acquire it after awaking so as to protect		\
-	 * all semaphore operations.					\
-	 *								\
-	 * If "up()" is called before we call waking_non_zero() then	\
-	 * we will catch it right away.  If it is called later then	\
-	 * we will have to go through a wakeup cycle to catch it.	\
-	 *								\
-	 * Multiple waiters contend for the semaphore lock to see	\
-	 * who gets to gate through and who has to wait some more.	\
-	 */								\
-	for (;;) {
-
-#define DOWN_TAIL(task_state)			\
-		current->state = (task_state);	\
-	}					\
-	current->state = TASK_RUNNING;		\
-	remove_wait_queue(&sem->wait, &wait);
-
 void __down(struct semaphore * sem)
 {
 	DECLARE_WAITQUEUE(wait, current);
 
-	DOWN_HEAD(TASK_UNINTERRUPTIBLE)
-	if (waking_non_zero(sem))
-		break;
-	schedule();
-	DOWN_TAIL(TASK_UNINTERRUPTIBLE)
-}
-
-int __down_interruptible(struct semaphore * sem)
-{
-	DECLARE_WAITQUEUE(wait, current);
-	int ret = 0;
-
-	DOWN_HEAD(TASK_INTERRUPTIBLE)
-
-	ret = waking_non_zero_interruptible(sem, current);
-	if (ret)
-	{
-		if (ret == 1)
-			/* ret != 0 only if we get interrupted -arca */
-			ret = 0;
-		break;
-	}
-	schedule();
-	DOWN_TAIL(TASK_INTERRUPTIBLE)
-	return ret;
-}
-
-int __down_trylock(struct semaphore * sem)
-{
-	return waking_non_zero_trylock(sem);
-}
-
-
-/* Wait for the lock to become unbiased.  Readers
- * are non-exclusive. =)
- */
-void down_read_failed(struct rw_semaphore *sem)
-{
-	DECLARE_WAITQUEUE(wait, current);
-
-	__up_read(sem);	/* this takes care of granting the lock */
-
-	add_wait_queue(&sem->wait, &wait);
-
-	while (atomic_read(&sem->count) < 0) {
-		set_task_state(current, TASK_UNINTERRUPTIBLE);
-		if (atomic_read(&sem->count) >= 0)
+	/* protected by the sentry still -- use unlocked version */
+	__add_wait_queue_tail(&sem->wait, &wait);
+	spin_unlock(&sem->sentry);
+
+	for(;;) {
+		set_task_state(current, TASK_INTERRUPTIBLE | TASK_EXCLUSIVE);
+		/* we can _read_ this without the sentry */
+		if (sem->count > 0)
 			break;
 		schedule();
 	}
 
-	remove_wait_queue(&sem->wait, &wait);
+	spin_lock(&sem->sentry);
+	__remove_wait_queue(&sem->wait, &wait);
 	current->state = TASK_RUNNING;
 }
 
-void down_read_failed_biased(struct rw_semaphore *sem)
+int __down_interruptible(struct semaphore * sem)
 {
+	int ret = 0;
 	DECLARE_WAITQUEUE(wait, current);
 
-	add_wait_queue(&sem->wait, &wait);	/* put ourselves at the head of the list */
-
-	for (;;) {
-		if (sem->read_bias_granted && xchg(&sem->read_bias_granted, 0))
+	/* protected by the sentry still -- use unlocked version */
+	__add_wait_queue_tail(&sem->wait, &wait);
+	spin_unlock(&sem->sentry);
+
+	for(;;) {
+		set_task_state(current, TASK_INTERRUPTIBLE | TASK_EXCLUSIVE);
+		/* we can _read_ this without the sentry */
+		if (sem->count > 0)
 			break;
-		set_task_state(current, TASK_UNINTERRUPTIBLE);
-                if (!sem->read_bias_granted)
-			schedule();
+		if (signal_pending(current)) {
+			ret = -EINTR;
+			break;
+		}
+		schedule();
 	}
+	spin_lock(&sem->sentry);
 
-	remove_wait_queue(&sem->wait, &wait);
+	__remove_wait_queue(&sem->wait, &wait);
 	current->state = TASK_RUNNING;
+
+	return ret;
 }
 
+/* Read/write semaphores below this point */
 
-/* Wait for the lock to become unbiased. Since we're
- * a writer, we'll make ourselves exclusive.
- */
-void down_write_failed(struct rw_semaphore *sem)
+/* A writer already holds this lock, so we have to sleep. */
+void __down_read_failed(struct rw_semaphore *sem)
 {
 	DECLARE_WAITQUEUE(wait, current);
 
-	__up_write(sem);	/* this takes care of granting the lock */
-
-	add_wait_queue_exclusive(&sem->wait, &wait);
+	/* protected by the sentry still -- use unlocked version */
+	__add_wait_queue(&sem->readers, &wait);
+	spin_unlock(&sem->sentry);
 
-	while (atomic_read(&sem->count) < 0) {
-		set_task_state(current, TASK_UNINTERRUPTIBLE | TASK_EXCLUSIVE);
-		if (atomic_read(&sem->count) >= 0)
-			break;	/* we must attempt to aquire or bias the lock */
+	for(;;) {
+		set_task_state(current, TASK_UNINTERRUPTIBLE);
+		/* we can _read_ this without the sentry */
+		if (sem->rw_count > 0)
+			break;
 		schedule();
 	}
+	spin_lock(&sem->sentry);
 
-	remove_wait_queue(&sem->wait, &wait);
+	__remove_wait_queue(&sem->readers, &wait);
 	current->state = TASK_RUNNING;
 }
 
-void down_write_failed_biased(struct rw_semaphore *sem)
+/* Either a writer or some readers already hold this lock. */
+void __down_write_failed(struct rw_semaphore *sem)
 {
 	DECLARE_WAITQUEUE(wait, current);
 
-	add_wait_queue_exclusive(&sem->write_bias_wait, &wait);	/* put ourselves at the end of the list */
+	__add_wait_queue_tail(&sem->writers, &wait);
+	spin_unlock(&sem->sentry);
 
-	for (;;) {
-		if (sem->write_bias_granted && xchg(&sem->write_bias_granted, 0))
-			break;
+	for(;;) {
 		set_task_state(current, TASK_UNINTERRUPTIBLE | TASK_EXCLUSIVE);
-		if (!sem->write_bias_granted)
-			schedule();
+		/* we can _read_ this without the sentry */
+		if (sem->rw_count >= 0)
+			break;
+		schedule();
 	}
 
-	remove_wait_queue(&sem->write_bias_wait, &wait);
+	spin_lock(&sem->sentry);
+	__remove_wait_queue(&sem->writers, &wait);
 	current->state = TASK_RUNNING;
-
-	/* if the lock is currently unbiased, awaken the sleepers
-	 * FIXME: this wakes up the readers early in a bit of a
-	 * stampede -> bad!
-	 */
-	if (atomic_read(&sem->count) >= 0)
-		wake_up(&sem->wait);
 }
 
-
-/* Called when someone has done an up that transitioned from
- * negative to non-negative, meaning that the lock has been
- * granted to whomever owned the bias.
+/* Called when a writer has raised the semaphore.  There may still be
+ * other writers waiting, but the readers have priority now.
  */
 void rwsem_wake_readers(struct rw_semaphore *sem)
 {
-	if (xchg(&sem->read_bias_granted, 1))
-		BUG();
-	wake_up(&sem->wait);
+	/* We only reset the BIAS if no writers are waiting. */
+	if (!waitqueue_active(&sem->writers))
+		sem->rw_count += RW_LOCK_BIAS;
+
+	wake_up(&sem->readers);
 }
 
+/* Called when the last reader has raised the semaphore.  Other readers
+ * may be blocked until this point, but the writer gets priority now.
+ */
 void rwsem_wake_writer(struct rw_semaphore *sem)
 {
-	if (xchg(&sem->write_bias_granted, 1))
-		BUG();
-	wake_up(&sem->write_bias_wait);
+	wake_up(&sem->writers);
 }
diff -urNX dontdiff linux-cvs/include/asm-parisc/semaphore-helper.h linux-mine/include/asm-parisc/semaphore-helper.h
--- linux-cvs/include/asm-parisc/semaphore-helper.h	Fri Dec 24 17:05:04 1999
+++ linux-mine/include/asm-parisc/semaphore-helper.h	Thu Jan  1 01:00:00 1970
@@ -1,89 +0,0 @@
-#ifndef _ASM_PARISC_SEMAPHORE_HELPER_H
-#define _ASM_PARISC_SEMAPHORE_HELPER_H
-
-/*
- * SMP- and interrupt-safe semaphores helper functions.
- *
- * (C) Copyright 1996 Linus Torvalds
- * (C) Copyright 1999 Andrea Arcangeli
- */
-
-/*
- * These two _must_ execute atomically wrt each other.
- *
- * This is trivially done with load_locked/store_cond,
- * which we have.  Let the rest of the losers suck eggs.
- */
-static __inline__ void wake_one_more(struct semaphore * sem)
-{
-	atomic_inc((atomic_t *)&sem->waking);
-}
-
-static __inline__ int waking_non_zero(struct semaphore *sem)
-{
-	unsigned long flags;
-	int ret = 0;
-
-	spin_lock_irqsave(&semaphore_wake_lock, flags);
-	if (sem->waking > 0) {
-		sem->waking--;
-		ret = 1;
-	}
-	spin_unlock_irqrestore(&semaphore_wake_lock, flags);
-	return ret;
-}
-
-/*
- * waking_non_zero_interruptible:
- *	1	got the lock
- *	0	go to sleep
- *	-EINTR	interrupted
- *
- * We must undo the sem->count down_interruptible() increment while we are
- * protected by the spinlock in order to make atomic this atomic_inc() with the
- * atomic_read() in wake_one_more(), otherwise we can race. -arca
- */
-static __inline__ int waking_non_zero_interruptible(struct semaphore *sem,
-						struct task_struct *tsk)
-{
-	unsigned long flags;
-	int ret = 0;
-
-	spin_lock_irqsave(&semaphore_wake_lock, flags);
-	if (sem->waking > 0) {
-		sem->waking--;
-		ret = 1;
-	} else if (signal_pending(tsk)) {
-		atomic_inc(&sem->count);
-		ret = -EINTR;
-	}
-	spin_unlock_irqrestore(&semaphore_wake_lock, flags);
-	return ret;
-}
-
-/*
- * waking_non_zero_trylock:
- *	1	failed to lock
- *	0	got the lock
- *
- * We must undo the sem->count down_trylock() increment while we are
- * protected by the spinlock in order to make atomic this atomic_inc() with the
- * atomic_read() in wake_one_more(), otherwise we can race. -arca
- */
-static __inline__ int waking_non_zero_trylock(struct semaphore *sem)
-{
-	unsigned long flags;
-	int ret = 1;
-
-	spin_lock_irqsave(&semaphore_wake_lock, flags);
-	if (sem->waking <= 0)
-		atomic_inc(&sem->count);
-	else {
-		sem->waking--;
-		ret = 0;
-	}
-	spin_unlock_irqrestore(&semaphore_wake_lock, flags);
-	return ret;
-}
-
-#endif /* _ASM_PARISC_SEMAPHORE_HELPER_H */
diff -urNX dontdiff linux-cvs/include/asm-parisc/semaphore.h linux-mine/include/asm-parisc/semaphore.h
--- linux-cvs/include/asm-parisc/semaphore.h	Sat Aug 12 00:40:13 2000
+++ linux-mine/include/asm-parisc/semaphore.h	Fri Jan  5 16:45:22 2001
@@ -1,34 +1,28 @@
 #ifndef _ASM_PARISC_SEMAPHORE_H
 #define _ASM_PARISC_SEMAPHORE_H
 
-#include <linux/linkage.h>
-
 /*
  * SMP- and interrupt-safe semaphores.
  *
  * (C) Copyright 1996 Linus Torvalds
  *
- * SuperH verison by Niibe Yutaka
+ * PA-RISC version Copyright (c) 2001 Matthew Wilcox
  *
  */
 
-/* if you're going to use out-of-line slowpaths, use .section .lock.text,
- * not .text.lock or the -ffunction-sections monster will eat you alive
- */
-
 #include <linux/spinlock.h>
+#include <linux/wait.h>
 
 #include <asm/system.h>
-#include <asm/atomic.h>
 
 struct semaphore {
-	atomic_t count;
-	int waking;
+	spinlock_t	sentry;
+	int		count;
 	wait_queue_head_t wait;
 #if WAITQUEUE_DEBUG
 	long __magic;
 #endif
-};
+} ;
 
 #if WAITQUEUE_DEBUG
 # define __SEM_DEBUG_INIT(name) \
@@ -38,7 +32,7 @@
 #endif
 
 #define __SEMAPHORE_INITIALIZER(name,count) \
-{ ATOMIC_INIT(count), 0, __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \
+{ SPIN_LOCK_UNLOCKED, count, __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \
 	__SEM_DEBUG_INIT(name) }
 
 #define __MUTEX_INITIALIZER(name) \
@@ -52,18 +46,7 @@
 
 extern inline void sema_init (struct semaphore *sem, int val)
 {
-/*
- *	*sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val);
- *
- * i'd rather use the more flexible initialization above, but sadly
- * GCC 2.7.2.3 emits a bogus warning. EGCS doesnt. Oh well.
- */
-	atomic_set(&sem->count, val);
-	sem->waking = 0;
-	init_waitqueue_head(&sem->wait);
-#if WAITQUEUE_DEBUG
-	sem->__magic = (long)&sem->__magic;
-#endif
+	*sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val);
 }
 
 static inline void init_MUTEX (struct semaphore *sem)
@@ -76,11 +59,6 @@
 	sema_init(sem, 0);
 }
 
-asmlinkage void __down_failed(void /* special register calling convention */);
-asmlinkage int  __down_failed_interruptible(void  /* params in registers */);
-asmlinkage int  __down_failed_trylock(void  /* params in registers */);
-asmlinkage void __up_wakeup(void /* special register calling convention */);
-
 asmlinkage void __down(struct semaphore * sem);
 asmlinkage int  __down_interruptible(struct semaphore * sem);
 asmlinkage int  __down_trylock(struct semaphore * sem);
@@ -88,37 +66,50 @@
 
 extern spinlock_t semaphore_wake_lock;
 
+/* Sempahores can be `tried' from irq context.  So we have to disable
+ * interrupts while we're messing with the semaphore.  Sorry.
+ */
+
 extern __inline__ void down(struct semaphore * sem)
 {
+	int flags;
 #if WAITQUEUE_DEBUG
 	CHECK_MAGIC(sem->__magic);
 #endif
 
-	if (atomic_dec_return(&sem->count) < 0)
+	spin_lock_irqsave(&sem->sentry, flags);
+	if (--sem->count < 0)
 		__down(sem);
+	spin_unlock_irqrestore(&sem->sentry, flags);
 }
 
 extern __inline__ int down_interruptible(struct semaphore * sem)
 {
+	int flags;
 	int ret = 0;
 #if WAITQUEUE_DEBUG
 	CHECK_MAGIC(sem->__magic);
 #endif
 
-	if (atomic_dec_return(&sem->count) < 0)
+	spin_lock_irqsave(&sem->sentry, flags);
+	if (--sem->count < 0)
 		ret = __down_interruptible(sem);
+	spin_unlock_irqrestore(&sem->sentry, flags);
 	return ret;
 }
 
 extern __inline__ int down_trylock(struct semaphore * sem)
 {
+	int flags;
 	int ret = 0;
 #if WAITQUEUE_DEBUG
 	CHECK_MAGIC(sem->__magic);
 #endif
 
-	if (atomic_dec_return(&sem->count) < 0)
+	spin_lock_irqsave(&sem->sentry, flags);
+	if (--sem->count < 0)
 		ret = __down_trylock(sem);
+	spin_unlock_irqrestore(&sem->sentry, flags);
 	return ret;
 }
 
@@ -128,11 +119,14 @@
  */
 extern __inline__ void up(struct semaphore * sem)
 {
+	int flags;
 #if WAITQUEUE_DEBUG
 	CHECK_MAGIC(sem->__magic);
 #endif
-	if (atomic_inc_return(&sem->count) <= 0)
+	spin_lock_irqsave(&sem->sentry, flags);
+	if (++sem->count <= 0)
 		__up(sem);
+	spin_unlock_irqrestore(&sem->sentry, flags);
 }
 
 /* rw mutexes (should that be mutices? =) -- throw rw
@@ -146,9 +140,8 @@
  * (in which case it goes to sleep).
  *
  * The value 0x01000000 supports up to 128 processors and
- * lots of processes.  BIAS must be chosen such that subl'ing
- * BIAS once per CPU will result in the long remaining
- * negative.
+ * lots of processes.  BIAS must be chosen such that subtracting
+ * BIAS twice will result in the value remaining negative.
  *
  * In terms of fairness, this should result in the lock
  * flopping back and forth between readers and writers
@@ -156,18 +149,19 @@
  *
  *              -ben
  */
+/* NOTE: There is currently no provision for attempting to acquire
+ * rw_sems from interrupt context.  These routines will require more
+ * work if this is to be allowed.
+ */
 struct rw_semaphore {
-        atomic_t                count;
-        volatile unsigned char  write_bias_granted;
-        volatile unsigned char  read_bias_granted;
-        volatile unsigned char  pad1;
-        volatile unsigned char  pad2;
-        wait_queue_head_t       wait;
-        wait_queue_head_t       write_bias_wait;
-#if WAITQUEUE_DEBUG
-        long                    __magic;
-        atomic_t                readers;
-        atomic_t                writers;
+	spinlock_t		sentry;
+	volatile int		rw_count;
+        wait_queue_head_t       writers;
+        wait_queue_head_t       readers;
+#if WAITQUEUE_DEBUG
+        long			__magic;
+        volatile int		n_readers;
+        volatile int		n_writers;
 #endif
 };
 
@@ -180,8 +174,8 @@
 #define RW_LOCK_BIAS 0x01000000
 
 #define __RWSEM_INITIALIZER(name,count) \
-{ ATOMIC_INIT(count), 0, 0, 0, 0, __WAIT_QUEUE_HEAD_INITIALIZER((name).wait), \
-        __WAIT_QUEUE_HEAD_INITIALIZER((name).write_bias_wait) \
+{ SPIN_LOCK_UNLOCKED, count, __WAIT_QUEUE_HEAD_INITIALIZER((name).writers), \
+        __WAIT_QUEUE_HEAD_INITIALIZER((name).readers) \
         __SEM_DEBUG_INIT(name) __RWSEM_DEBUG_INIT }
 
 #define __DECLARE_RWSEM_GENERIC(name,count) \
@@ -193,109 +187,88 @@
 
 extern inline void init_rwsem(struct rw_semaphore *sem)
 {
-        atomic_set(&sem->count, RW_LOCK_BIAS);
-        sem->read_bias_granted = 0;
-        sem->write_bias_granted = 0;
-        init_waitqueue_head(&sem->wait);
-        init_waitqueue_head(&sem->write_bias_wait);
-#if WAITQUEUE_DEBUG
-        sem->__magic = (long)&sem->__magic;
-        atomic_set(&sem->readers, 0);
-        atomic_set(&sem->writers, 0);
-#endif
+	*sem = (struct rw_semaphore) __RWSEM_INITIALIZER(*sem, RW_LOCK_BIAS);
 }
 
-#ifdef FIXME_WILLY_FIXME_FOR_REAL_THIS_TIME
-extern struct rw_semaphore *__build_read_lock(struct rw_semaphore *sem, const char *what);
-extern struct rw_semaphore *__build_write_lock(struct rw_semaphore *sem, const char *what);
-#endif
-
 /* we use FASTCALL convention for the helpers */
-extern struct rw_semaphore *FASTCALL(__down_read_failed(struct rw_semaphore *sem));
-extern struct rw_semaphore *FASTCALL(__down_write_failed(struct rw_semaphore *sem));
-extern struct rw_semaphore *FASTCALL(__rwsem_wake(struct rw_semaphore *sem));
+extern void FASTCALL(__down_read_failed(struct rw_semaphore *sem));
+extern void FASTCALL(__down_write_failed(struct rw_semaphore *sem));
+extern void FASTCALL(rwsem_wake_readers(struct rw_semaphore *sem));
+extern void FASTCALL(rwsem_wake_writer(struct rw_semaphore *sem));
 
 extern inline void down_read(struct rw_semaphore *sem)
 {
+	int count;
+	spin_lock(&sem->sentry);
 #if WAITQUEUE_DEBUG
         if (sem->__magic != (long)&sem->__magic)
                 BUG();
 #endif
-#ifdef FIXME_WILLY_FIXME_FOR_REAL_THIS_TIME
-        __build_read_lock(sem, "__down_read_failed");
-#endif
+	count = sem->rw_count - 1;
+	if (count < 0)
+		__down_read_failed(sem);
+	sem->rw_count = count;
 #if WAITQUEUE_DEBUG
-        if (sem->write_bias_granted)
-                BUG();
-        if (atomic_read(&sem->writers))
+        if (sem->n_writers)
                 BUG();
-        atomic_inc(&sem->readers);
+        sem->n_readers++;
 #endif
+	spin_unlock(&sem->sentry);
 }
 
 extern inline void down_write(struct rw_semaphore *sem)
 {
+	int count;
+	spin_lock(&sem->sentry);
 #if WAITQUEUE_DEBUG
         if (sem->__magic != (long)&sem->__magic)
                 BUG();
 #endif
-#ifdef FIXME_WILLY_FIXME_FOR_REAL_THIS_TIME
-        __build_write_lock(sem, "__down_write_failed");
-#endif
+	count = sem->rw_count - RW_LOCK_BIAS;
+	if (count != 0)
+		__down_write_failed(sem);
 #if WAITQUEUE_DEBUG
-        if (atomic_read(&sem->writers))
-                BUG();
-        if (atomic_read(&sem->readers))
+        if (sem->n_writers)
                 BUG();
-        if (sem->read_bias_granted)
+        if (sem->n_readers)
                 BUG();
-        if (sem->write_bias_granted)
-                BUG();
-        atomic_inc(&sem->writers);
+        sem->n_writers = 1;
 #endif
-}
-
-/* When a reader does a release, the only significant
- * case is when there was a writer waiting, and we've
- * bumped the count to 0: we must wake the writer up.
- */
-extern inline void __up_read(struct rw_semaphore *sem)
-{
-}
-
-/* releasing the writer is easy -- just release it and
- * wake up any sleepers.
- */
-extern inline void __up_write(struct rw_semaphore *sem)
-{
+	spin_unlock(&sem->sentry);
 }
 
 extern inline void up_read(struct rw_semaphore *sem)
 {
+	int count;
+	spin_lock(&sem->sentry);
 #if WAITQUEUE_DEBUG
-        if (sem->write_bias_granted)
-                BUG();
-        if (atomic_read(&sem->writers))
+        if (sem->n_writers)
                 BUG();
-        atomic_dec(&sem->readers);
+        sem->n_readers--;
 #endif
-        __up_read(sem);
+	count = sem->rw_count++;
+	if (count == 0)
+		rwsem_wake_writer(sem);
+	spin_unlock(&sem->sentry);
 }
 
 extern inline void up_write(struct rw_semaphore *sem)
 {
+	int count;
+	spin_lock(&sem->sentry);
 #if WAITQUEUE_DEBUG
-        if (sem->read_bias_granted)
-                BUG();
-        if (sem->write_bias_granted)
-                BUG();
-        if (atomic_read(&sem->readers))
+        if (sem->n_readers)
                 BUG();
-        if (atomic_read(&sem->writers) != 1)
+        if (sem->n_writers != 1)
                 BUG();
-        atomic_dec(&sem->writers);
+        sem->n_writers = 0;
 #endif
-        __up_write(sem);
+	count = sem->rw_count;
+	if (count < 0)
+		rwsem_wake_readers(sem);
+	else
+		sem->rw_count = RW_LOCK_BIAS;
+	spin_unlock(&sem->sentry);
 }
 
 #endif /* _ASM_PARISC_SEMAPHORE_H */
diff -urNX dontdiff linux-cvs/include/asm-parisc/spinlock.h linux-mine/include/asm-parisc/spinlock.h
--- linux-cvs/include/asm-parisc/spinlock.h	Wed Nov  8 20:36:55 2000
+++ linux-mine/include/asm-parisc/spinlock.h	Fri Jan  5 15:52:18 2001
@@ -3,13 +3,10 @@
 
 #include <asm/system.h>
 
-/* if you're going to use out-of-line slowpaths, use .section .lock.text,
- * not .text.lock or the -ffunction-sections monster will eat you alive
+/* Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
+ * since it only has load-and-zero.
  */
 
-/* we seem to be the only architecture that uses 0 to mean locked - but we
- * have to.  prumpf */

From - Thu Nov 08 21:15:00 2018
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X-Mozilla-Keys:                                                                                 
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] spinlocks
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To: matthew@wil.cx (Matthew Wilcox)
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Xref: news.gmane.org gmane.linux.ports.parisc:9106

> A better design is to repeatedly load the value until it becomes non-zero,
> and only then try to ldcw it.  This way, all processors have a read-only
> copy of the cache line and checking its value has no effect on the bus.
> In C, this could be implemented as:

Very much so on most architectures - you should read Unix Systems for 
Modern Architectures. If I'd know you hadn't I'd have forcefed it to you when
you visited 

> 


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From: Andi <andi@fischlustig.de>
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Subject: [parisc-linux] EVC monitor cable/adapter
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Xref: news.gmane.org gmane.linux.ports.parisc:9107

Hi,

i am looking for an EVC monitor cable for the EG gfxcard in my C240.

I was searching everywhere, but i failed. Anyone know how to buy such
a cable/adapter in germany?

thanks

andi



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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] website
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As I've mentioned before, I'm not happy with several aspects of the
proposed replacement website.

 * I believe there is too much boilerplate HTML which will quickly get out
   of sync between the different files.
 * The proposed site doesn't have the useful `last updated' feature.
 * The text is too small.
 * It uses too many tables.
 * The <title></title> gives no useful information (also a problem with the
   current site.)
 * Too many directories containing only one file.
 * It now requires perl to build.

Instead of just whining about it, I've taken the design of the proposed
site and merged it into our current site.  I don't propose to put
the results back into CVS yet, so I've made a tarball available from
ftp://puffin.external.hp.com/pub/parisc/newsite.tar.bz2.  It merges most
of the proposed site into te current site, fixing the following things:

 * Removes all boilerplate HTML and places it in common files.
 * Reintroduces the `last updated' text.
 * Puts useful information in the title
 * Eliminates useless directories
 * Builds using sh, grep, sed, date, pwd, head, tr.

There are a lot of things I like about the proposed site, that's why
I'm bothering to try to fix the things I don't like.  I haven't tried to
fix the tables and font sizes because these are aesthetic design issues,
not technical issues.

This tarball doesn't contain everything I like from the proposed site; it
represents a merge of the more important bits into the current site.  Other
bits should be brought across, but I want to get some feedback on whether
this design works before i put more than a couple of hours work into it.

-- 
Revolutions do not require corporate support.


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From: "T. Martin" <catfish@alltel.net>
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Subject: [parisc-linux] ISO?
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 Hello,
Where is the test iso located? 
I've looked on the ftp and don't see it anyone with the link please
forward it.
Thanks 
Terry



Achilles' Biological Findings:
        (1) If a child looks like his father, that's heredity.  If he
            looks like a neighbor, that's environment.
        (2) A lot of time has been wasted arguing over what came first
            -- the chicken or the egg.  It was undoubtedly the
            rooster.




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From: Richard Muratti <rmurat@ibm.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Any K200 Experiences Out There??
Date: Mon, 8 Jan 2001 18:14:34 +1100
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Hi All,

Just wondering if there are any K200 owners out there
that have had any luck.

I've tried the 0.1 iso and all i get is
pdc_cons die !!

0.5 iso just dies with a stack dump & 
Kernel Fault: Code=15 regs=dfff0840

I'd like to here if anyone has gotten any further than
this.

Cheers
Rick







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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] ISO?
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On Sun, Jan 07, 2001 at 09:08:55PM -0600, T. Martin wrote:
>  Hello,
> Where is the test iso located? 
> I've looked on the ftp and don't see it anyone with the link please
> forward it.
> Thanks 
> Terry

ftp://puffin.external.hp.com/pub/parisc/cd-images/palinux-0.5.iso.gz 

Richard


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From: haeussler@mkl-mail.mach.uni-karlsruhe.de
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Subject: [parisc-linux] HP 710 Series
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Hello Everybody

My Name is Pascal Haeussler and i'm working here at the institute for
machine design, University of Karlsruhe, Germany. We use many HP boxes with
HP-UX 10.20.

I keep track with Your developments for a while and thougt about a way i
could contribute something. So some old HP 710 (PA 1.1 arcitecture with
HP-UX 10.20, 48 or 64 Mb Memory) Pizza-boxes came to my mind which are no
longer used here. They are quite slow but still work.

If these machines could help You as "native compile-stations", i could check
out if we can set them up here with accounts for those of You who have no
access to HP hardware.
(I can not promise this at the moment, i have to ask our administrators, but
i first wanted to know if this could help.)

If You are interested, just let me know.

Greetings,

Pascal Haeussler
--
Pascal Haeussler							Inst. fuer. MKL u. KFZBau
mailto:haeussler@mkl-mail.mach.uni-karlsruhe.de		Universitaet Karlsruhe
									Kaiserstrasse 12
									76131 Karlsruhe/Germany
									(0721) 608-6472


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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] GCC compilation
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	Hi
I've retry to compil the GCC. It worked few weeks ago, but now it fails
when I try to compil the full GCC. This the output of my recompil script
(error output):

/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h:368: ISO C++ forbids
   declaration of `pthread_mutex_t' with no type
/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h:368: parse error before ';'
   token
/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h:580: syntax error before '<'
   token
/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h:580: `__threads' was not
   declared in this scope
/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h:580: `__inst' was not
   declared in this scope
/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h:580: template argument 1 is
   invalid
/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h:580: template argument 2 is
   invalid
/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h:581: ISO C++ forbids
   declaration of `_S_node_allocator_lock' with no type
/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h:581: `PTHREAD_MUTEX_INITIALIZER'
   was not declared in this scope
In file included from /opt/linux_hppa/src/gcc/libstdc++/stdexcepti.cc:15:
/opt/linux_hppa/src/gcc/libstdc++/stdexcept:440:   instantiated from here
/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h:393: `pthread_mutex_lock'
   undeclared (first use this function)
/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h:393: (Each undeclared
   identifier is reported only once for each function it appears in.)
In file included from /opt/linux_hppa/src/gcc/libstdc++/stdexcepti.cc:15:
/opt/linux_hppa/src/gcc/libstdc++/stdexcept:440:   instantiated from here
/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h:394: `pthread_mutex_unlock'
   undeclared (first use this function)
/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h: In destructor
   `logic_error::~logic_error ()':
/opt/linux_hppa/src/gcc/libstdc++/stl/stl_alloc.h:15: Internal error:
   Segmentation fault.
   Please submit a full bug report.
   See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[1]: *** [stdexcepti.o] Error 1
make: *** [all-target-libstdc++] Error 2

Everything compil right, only the full GCC compil fail ? Do you have any idea ?
Must I redownload all bits ?

	Thanks.
  
-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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	Oups, I forget to say that I've got this problem after
doing a CVS update.

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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On Mon, 8 Jan 2001, Bruno Vidal wrote:

> I've retry to compil the GCC. It worked few weeks ago, but now it fails

I've just done a full recompile of gcc (cvs HEAD version) without seeing
the error you report.  Perhaps you need to start from a clean directory?

-- 
Linuxcare.  Support for the Revolution.


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From: rule@freegates.be
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Subject: [parisc-linux] error booting with recent cvs linux kernel
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Hello all,

When booting a kernel, compiled from CVS update today, with CVS
gcc/binutils/glibc/palo from CVS, I get the following error :

(I use STI console, following is copied from screen)

INIT: version 2.78 booting
break 0,0: pid=9 command='rcS'
rcS[9]: breakpoint 0

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011
r0-3% 00000000 c02bc800 00000000 00000000
r4-7% 00000000 00000000 00000000 00000000
r8-11% 00000000 00000000 00000000 00000000
r12-15% 00000000 00000000 00076808 c011ef58
r16-19% c3c80600 c3c80000 00076808 00000001
r20-23% c3fce860 c3fce860 00000000 c3fce840
r24-27% c3fffd40 00001000 00000000 c024c000
r28-31% 00000000 00000000 c3c80a00 c012a134
sr0-3% 00000000 00000000 00000000 00000003
sr4-7% 00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 00000000 00000004
 IIR: 00000000    ISR: 00000000  IOR: c3c00008
ORIG_R28: 00000000

The box boots fine with a backup kernel, compiled late december of last year.

Kind regards,
Roel Teuwen


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Any K200 Experiences Out There??
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On Mon, Jan 08, 2001 at 06:14:34PM +1100, Richard Muratti wrote:
> Hi All,
> 
> Just wondering if there are any K200 owners out there
> that have had any luck.
> 
> I've tried the 0.1 iso and all i get is
> pdc_cons die !!

this is explained in the faq.

> 0.5 iso just dies with a stack dump & 
> Kernel Fault: Code=15 regs=dfff0840

dunno about this one.  the kernel on that cd is quite out of date;
can you try compiling a new one?

-- 
Revolutions do not require corporate support.


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Matthew Wilcox said:
> the kernel on that cd is quite out of date;
> can you try compiling a new one?

That reminds me of something I've been meaning to ask...  What all
needs to be upgraded to update to the latest CVS kernel (from the 0.5
CD)?  Is it enough to just compile a new kernel, or will glibc and
various other things need updating too?

Steve
-- 
steve@silug.org           | Southern Illinois Linux Users Group
(618)398-7320             | See web site for meeting details.
Steven Pritchard          | http://www.silug.org/


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From: "Phillip D. Beal" <pdbeal@louisville.edu>
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Subject: [parisc-linux] STI Console on 755 and 735
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Hey,

I've just recently compiled the CVS kernel, and the STI console doesnot
yet work.  I've been watching the mailing list and I thought I had seen
some people having success with the STI console.  When the system
atempts to run on the STI console, some of the letters from words appear
normal, (ex: INIT comes through as INIT, and most of the numbers work).
However, some of the letters come through as odd ASCII Characters.  The
CVS kernel I grabed was from 20010105, since anything after that was
either 0 bytes or was a bad gzip archive.  Does the STI console work
properly yet with the CVS kernels? or is it just getting better?

Thanks,
-- 
Phillip Beal                           ___           _               _   
Electrical and Computer Engineering   | _ ) ___ __ _| |___  _ _  ___| |_ 
pdbeal@louisville.edu                 | _ \/ -_) _` | |_ /_| ' \/ -_)  _|
http://www.bealz.net/                 |___/\___\__,_|_/__(_)_||_\___|\__|


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Subject: Re: [parisc-linux] Any K200 Experiences Out There??
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On Mon, Jan 08, 2001 at 09:20:47AM -0600, Steven Pritchard wrote:
> Matthew Wilcox said:
> > the kernel on that cd is quite out of date;
> > can you try compiling a new one?
> 
> That reminds me of something I've been meaning to ask...  What all
> needs to be upgraded to update to the latest CVS kernel (from the 0.5
> CD)?  Is it enough to just compile a new kernel, or will glibc and
> various other things need updating too?

the root filesystem i'm using is basically the 0.5 CD.  i managed to not
break anything with the stack changes :-)  [at least, only temporarily..]

-- 
Revolutions do not require corporate support.


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From: "Roel Teuwen" <Roel.Teuwen@advalvas.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] error booting with recent cvs linux kernel
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Oops, forgot to mention, this is on a 712/60, using the 0.5 ISO for
userspace

----- Original Message -----
From: <rule@freegates.be>
To: <parisc-linux@thepuffingroup.com>
Sent: Monday, January 08, 2001 11:33 AM
Subject: [parisc-linux] error booting with recent cvs linux kernel


> Hello all,
>
> When booting a kernel, compiled from CVS update today, with CVS
> gcc/binutils/glibc/palo from CVS, I get the following error :
>
> (I use STI console, following is copied from screen)
>
> INIT: version 2.78 booting
> break 0,0: pid=9 command='rcS'
> rcS[9]: breakpoint 0
>
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001011
> r0-3% 00000000 c02bc800 00000000 00000000
> r4-7% 00000000 00000000 00000000 00000000
> r8-11% 00000000 00000000 00000000 00000000
> r12-15% 00000000 00000000 00076808 c011ef58
> r16-19% c3c80600 c3c80000 00076808 00000001
> r20-23% c3fce860 c3fce860 00000000 c3fce840
> r24-27% c3fffd40 00001000 00000000 c024c000
> r28-31% 00000000 00000000 c3c80a00 c012a134
> sr0-3% 00000000 00000000 00000000 00000003
> sr4-7% 00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 00000000 00000004
>  IIR: 00000000    ISR: 00000000  IOR: c3c00008
> ORIG_R28: 00000000
>
> The box boots fine with a backup kernel, compiled late december of last
year.
>
> Kind regards,
> Roel Teuwen
>
>
> -------------------------------------------------
> This mail sent through IMP: webmail.tiscalinet.be
>
> --------------------------------------------------------------------------

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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] EVC monitor cable/adapter
Date: Fri, 05 Jan 2001 16:56:18 -0700
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Andi writes...

> Hi,
> 
> i am looking for an EVC monitor cable for the EG gfxcard in my C240.
> 
> I was searching everywhere, but i failed. Anyone know how to buy such
> a cable/adapter in germany?

The one I have here is HP part # 1253-0635.

If you can't find one locally I can ship you one, as long as it's for Linux 
hacking of course :)

HTH,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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From: "Ross Sponholtz" <rsponholtz@earthlink.net>
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Subject: [parisc-linux] Ready to go!
Date: Sat, 29 May 1999 15:50:02 -0500
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------=_NextPart_000_0019_01BEA9EA.EA2FDFC0
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Alright!  I finally got my HP 715.  Now I need to get started with the =
project.  I was planning on getting MkLinux going, but apparently, the =
opengroup site with the software has been taken down.  Does anyone have =
the disk image that I could ftp?  Also, is everyone booting off the =
network (for development purposes)?

thanks for your help!

Ross Sponholtz
rsponholtz@earthlink.net

------=_NextPart_000_0019_01BEA9EA.EA2FDFC0
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<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT size=3D2>Alright!&nbsp; I finally got my HP 715.&nbsp; Now I =
need to=20
get started with the project.&nbsp; I was planning on getting MkLinux =
going, but=20
apparently, the opengroup site with the software has been taken =
down.&nbsp; Does=20
anyone have the disk image that I could ftp?&nbsp; Also, is everyone =
booting off=20
the network (for development purposes)?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>thanks for your help!</DIV>
<DIV>&nbsp;</DIV>
<DIV>Ross Sponholtz</DIV>
<DIV>rsponholtz@earthlink.net</DIV></BODY></HTML>

------=_NextPart_000_0019_01BEA9EA.EA2FDFC0--


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From: bame@riverrock.org
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.4.0 Source Import
Date: Tue, 09 Jan 2001 11:33:45 -0700
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I've imported 2.4.0 sources into our CVS tree, safely isolated on the
vendor branch so theoretically nobody should see any changes until they
ask for them.  WE ARE NOT FOR MERGING AT THIS TIME -- it's to allow people
to use CVS (esp. cvs diff and tkdiff) to examine and prepare for what's
changed.  We are planning to merge with whatever is reasonable, which may
not be 2.4.0, around Jan 23, so consider this import only a courtesy.

If you want to see what's changed between 2.4.0test10 and 2.4.0, use
	tkdiff -rLINUS_240_TEST10 -rLINUS_240 <filename>
(or use cvs diff if you prefer).  If you want to see what a CVS
automatic merge would do, use:
	cvs update -jLINUS_240_TEST10 -jLINUS_240
on your top-of-branch tree.  PLEASE DON'T COMMIT MERGED BITS unless
you build a consensus it won't interfere with ongoing development or the
upcoming merge.

NOTE: CVS documentation suggests using a command something like
	cvs update -jlinus:yesterday -jlinus
to merge a recent import.  That WON'T WORK in our tree.


	-Paul Bame


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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Gnu cpp bug or feature?
Date: Tue, 9 Jan 2001 23:31:49 -0700 (MST)
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I just discovered that the gnu cpp doesn't allow * and = to be concatenated.
What I am trying to do is the following:

#ifdef __LP64__
#define ADDIB addib,*
#else
#define ADDIB addib,
#endif

I then would use the above defines throughout some assembly functions, e.g.:

    ADDIB>      -1,%r1,1b
    ADDIB=      -1,%arg3,fdoneloop

If __LP64__ is defined, the above two examples wind up expanding to:

    addib,*>    -1,%r1,1b
    addib,* =   -1,%arg3,fdoneloop

The first example expands as I would expect, but the second example winds
up being a syntax error, because it should have been expanded to:

    addib,*=    -1,%arg3,fdoneloop

Anyway, I prefer to write the code this way rather than sprinkling
#ifdef __LP64__'s throughout the code, or using two different copies
of the functions. I imagine that gnu cpp must be trying to avoid
creating the C *= operator by mistake, but I don't believe there is
any standard that requires this. I know that the above examples work
on HP-UX (not that HP-UX sets the standard).

It just seems strange to me for gnu cpp to special case this particular
sequence.  Is there a good reason for this behaviour, or is this a bug?

John Marvin
jsm@fc.hp.com


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Newsgroups: gmane.linux.ports.parisc
Subject: RE: C110 - palinux-0.5.iso boot but...
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To: "'Karsten Merker'" <karsten@excalibur.cologne.de>
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Hello Karsten,

Best wishes for new millennium.

> > Regarding the problems with the console code, please also 
> > read the mail I
> > have sent to the PA-RISC mailing list this evening, 
> > eventually this will
> > help you.
> 
> I will have to test but it would be for the new millennium.
> 

Well no more success, I try again with several cvs release (last was dated
20010105) but still display some info on PDC console until "Switching from
PDC console" then if I reconnect a console to the serial port I can login
(same behavior for any model I can test C110, 712 or B180).

What I do find strange anyway: if I try CTRL+ALT+DEL on the keyboard
connected to mother board (i.e. PDC keyboard?) the awaiting reboot is well
launch (except if I apply the patch
http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/12-Dec/0254.ht
ml which also display more on the PDC console but "warning can not initial
console" and go back to serial port console?)

Thanks anyway for information,
	Joel


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Gnu cpp bug or feature?
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On Tue, Jan 09, 2001 at 11:31:49PM -0700, John Marvin wrote:
> 
> I just discovered that the gnu cpp doesn't allow * and = to be concatenated.
> What I am trying to do is the following:

GNU cpp does do some slightly strange things to avoid accidentally creating
C tokens.  However, you should be able to work around this behaviour by using
the ## operator.  try...

>     ADDIB>      -1,%r1,1b
>     ADDIB=      -1,%arg3,fdoneloop

ADDIB##>
ADDIB##=

instead?

-- 
Revolutions do not require corporate support.


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Hello Paul,

I use your CD image (palinux-0.5.iso) first as a base to trying to use PDC
console on a C110 model.

As it finally does not work yet, I install your CD as it is with supplied
Debian packages.

"debhelper" complaint at configure phase because of "file" package
dependencies.

Ok, I download sources of last release from Debian server and try to rebuild
this package.

It fails and in the log of configure: /usr/bin/ld: cannot open crt1.o: no
such a file or directory.

It remembers me an old problem
(http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/08-Aug/0202.h
tml).
(I not sure that it exists a link between problems but the coincidence is
strange) [I do not actually try to find the solution because it was largely
recommended to work with a i386 linux and I had this opportunity some time
after]

I suspect that you already met the problem and may be have you the solution
or a good work around.

Do I have to used another release of gcc (under 
ftp://puffin.external.hp.com/pub/parisc/binaries/userspace I found other gcc
and binutils binaries. But is it for palinux?)?

Another way should be to use the cross-compiler on a i386 linux box (as it
seems enough stable). But if I well found the way to build native .deb
packages (http://www.debian.org/doc/packaging-manuals/packaging.html/), I do
not find here the way for "cross-pacakging"?

Thanks in advance for help,
	Joel


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: C110 - palinux-0.5.iso boot but...
Date: Wed, 10 Jan 2001 09:38:26 -0800
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Xref: news.gmane.org gmane.linux.ports.parisc:9129


> What I do find strange anyway: if I try CTRL+ALT+DEL on the keyboard
> connected to mother board (i.e. PDC keyboard?) the awaiting reboot is well
> launch (except if I apply the patch
> http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/12-Dec/0254.ht
> ml which also display more on the PDC console but "warning can not initial
> console" and go back to serial port console?)

I've seen this warning with the console patch applied and an *old* palo.
When Mathew Wilcox committed changes for the console support, he
also committed palo changes. palinux-0.5.iso has the old palo and thus
current kernels are slightly incompatible WRT console support.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: =?iso-8859-1?Q?SOETE_Jo=EBl?= <JSO@europay.com>
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Subject: RE: RE: [parisc-linux] Beta CD
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Xref: news.gmane.org gmane.linux.ports.parisc:9130

Oops I just figure out that crt1.o is supply by glibc which is well in the
install/debian-hppa but not in deb package format but as a tarball. May I
install it like this or does it exists already somewhere the package
(easiest for maintenance. no?)

Thanks a lot,
	Joel

> -----Original Message-----
> From:	SOETE Jol 
> Sent:	Wednesday, January 10, 2001 4:08 PM
> To:	'pjlahaie@linuxcare.com'
> Cc:	'parisc-linux@thepuffingroup.com'
> Subject:	RE: [parisc-linux] Beta CD 
> 
> Hello Paul,
> 
> I use your CD image (palinux-0.5.iso) first as a base to 
> trying to use PDC console on a C110 model.
> 
> As it finally does not work yet, I install your CD as it is 
> with supplied Debian packages.
> 
> "debhelper" complaint at configure phase because of "file" 
> package dependencies.
> 
> Ok, I download sources of last release from Debian server and 
> try to rebuild this package.
> 
> It fails and in the log of configure: /usr/bin/ld: cannot 
> open crt1.o: no such a file or directory.
> 
> It remembers me an old problem 
> (http://puffin.external.hp.com/mailing-lists/parisc-linux/2000
> /08-Aug/0202.html).
> (I not sure that it exists a link between problems but the 
> coincidence is strange) [I do not actually try to find the 
> solution because it was largely recommended to work with a 
> i386 linux and I had this opportunity some time after]
> 
> I suspect that you already met the problem and may be have 
> you the solution or a good work around.
> 
> Do I have to used another release of gcc (under 
> ftp://puffin.external.hp.com/pub/parisc/binaries/userspace I 
> found other gcc and binutils binaries. But is it for palinux?)?
> 
> Another way should be to use the cross-compiler on a i386 
> linux box (as it seems enough stable). But if I well found 
> the way to build native .deb packages 
> (http://www.debian.org/doc/packaging-manuals/packaging.html/),
>  I do not find here the way for "cross-pacakging"?
> 
> Thanks in advance for help,
> 	Joel


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Subject: Re: Who do I ask?
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Xref: news.gmane.org gmane.linux.ports.parisc:9131

= First off, Thank you for writing the docs on how to boot and load linux
= off of a CD.
= It is very helpful.  Though on most of the workstations I've tried
= booting, the machine locks up at "Switching from PDC console".
= Do you have an idea on how to fix this, or who I should talk to?
= Thank you,
=  - Josiah Carlson

I've cc-ed the mailing list you should use for asking palinux
questions (parisc-linux@thepuffingroup.com).  I recommend
checking our FAQ and archives for the answer to this
question.  The web site (with the FAQ and mailing list
info among other things) is at www.parisc-linux.org and you can
(crudely) search the e-mail archives at puffin.external.hp.com/cgi-bin/mailgrep

You didn't mention which version of the CD you have (that would be
helpful) or which workstations you're trying (that would be helpful too)
but I'm guessing you're trying to boot our CD on a machine which is
set up for a graphics console.  The CDs only work with serial consoles
so try plugging a terminal (9600 8N1) into the #1 serial port.

Please suggest ways that these resources (web site, mailing
list) are more obvious on our next CD since we obviously have
a problem.  Thanks!

	-P


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From: "Phillip D. Beal" <pdbeal@louisville.edu>
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Subject: [parisc-linux] PALO CD Creation
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Xref: news.gmane.org gmane.linux.ports.parisc:9132

Hey,

I've been building the latest kernel stuff, and I see that its getting
close to complketiong for the STI console.  First off I'd have to say
great job so far.  I would like to create a bootable CD with one of the
kernels I have built from cvs.  The kernel boots on a 755 and 735
throught the network, but there are other machines I've been asked to
try this on, and I need a CD.  I've read through the README from the
palo sources and followed the steps to create a CD, but I have a
question about this steps.  Are all the steps executed on an HPUX
machine, a PARISC machine, or a standard linux machine?  If they are
created on a linux machine, where can someone get the palo binary for
i386 linux.  Also, the README needs a little bit of an update too I
think, since we now have to pass console=[tty0|ttyS0] to palo.

Thanks,
-- 
Phillip Beal                           ___           _               _   
Electrical and Computer Engineering   | _ ) ___ __ _| |___  _ _  ___| |_ 
pdbeal@louisville.edu                 | _ \/ -_) _` | |_ /_| ' \/ -_)  _|
http://www.bealz.net/                 |___/\___\__,_|_/__(_)_||_\___|\__|


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Xref: news.gmane.org gmane.linux.ports.parisc:9133

= Hey,
= 
= I've been building the latest kernel stuff, and I see that its getting
= close to complketiong for the STI console.  First off I'd have to say
= great job so far.  I would like to create a bootable CD with one of the
= kernels I have built from cvs.  The kernel boots on a 755 and 735
= throught the network, but there are other machines I've been asked to
= try this on, and I need a CD.  I've read through the README from the
= palo sources

Sometimes the README.html is more up to date -- README is derived from it.

= and followed the steps to create a CD, but I have a
= question about this steps.  Are all the steps executed on an HPUX
= machine, a PARISC machine, or a standard linux machine?  If they are
= created on a linux machine, where can someone get the palo binary for
= i386 linux.

I master the CD and run palo on x86 Linux.  If you're using x86 to
cross-compile your Linux kernels you have the required palo binary
already.  Since the CD mastering software is probably not yet compiled
for palinux I think x86 Linux is your best choice.

= Also, the README needs a little bit of an update too I
= think, since we now have to pass console=[tty0|ttyS0] to palo.

The kernel command line is not specific to parisc and so the standard
Linux documentation should be used.  Palo's README does not duplicate
this information -- it should only document what's specific to palo
(kernel and ramdisk specifications) though I know it has a couple of
other things in there right now.

	-P


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From: Hugo van der Kooij <Hugo.van.der.Kooij@caiw.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Ready to go!
Date: Sat, 29 May 1999 23:12:19 +0200 (CEST)
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On Sat, 29 May 1999, Ross Sponholtz wrote:

> Alright!  I finally got my HP 715.  Now I need to get started with the project.  I was planning on getting MkLinux going, but apparently, the opengroup site with the software has been taken down.  Does anyone have the disk image that I could ftp?  Also, is everyone booting off the network (for development purposes)?

The 715/33 won't run mklinux at all. Basically one of the reasons I have
set my hopes on the real PARISC port. (Which I will patiently await.)

Hugo.

-- 
Hugo van der Kooij; Oranje Nassaustraat 16; 3155 VJ  Maasland
hvdkooij@caiw.nl		 http://www.caiw.nl/~hvdkooij/
--------------------------------------------------------------
Use of any of my email addresses for unsollicited (commercial)
    email is a clear intrusion of my privacy and illegal!


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: linux bame
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On Wed, Jan 10, 2001 at 02:08:27PM -0700, Paul Bame wrote:
> Log message:
> First-pass attempt at /proc/config, mostly from grant.  Seems to work
> fine with 'cat', but 'tail' and 'wc' aren't reliable with my userspace.

umm.  this has often been discussed for addition to the standard linux
kernel, but linus has not yet taken patches to do so.  i suggest searching
linux-kernel archives to see the arguments, i got bored and didn't read
them so i can't summarise.  i don't think this is something we should
be adding.

tail and wc invariably don't work on /proc files.  neither does less.
this is pretty inherent to the design of /proc and not a reflection on
your code.

> NOTE THIS IS ONLY VISIBLE on the proc_config branch.

it might be better to let this branch wither...

-- 
Revolutions do not require corporate support.


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From: Aleksandr Konstantinov <sanjak@tipas.lt>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Booting palinux on model 735 problems.
Date: Mon, 11 Jan 1999 14:50:46 +0200
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Hello All.

  I have problem.
 We have here two HP Apollo 9000 Series 700 Model 735 boxes (both
identical).  I tried to boot
palinux-0.5.iso on one of them. Because boxes have no cdrom I did it
through network using 
rbootd (slightly modified to accept empty target names) giving it whole
cdrom device as target.
It started ok, listed all devices available on board and passed to (all
strings are copied from
screen)

  ASP version 20 at f0800000 found.

Then it waits a bit and writes at screen

  Running stack from ...

and dumps a lot of data. Then it ends with

  High Priority Machine Check (HPMC): Code=1 regs=c026d080
(Addr=00000000)
      YXrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
 PSW: 00000000000001101111110100001011
 r0-3:   00000000 c01dc000 c02a7050 c4f9c748
 r4-7:   0000002c c4ff6240 f0824800 ffffffdf
 r8-11:  ffffffff c027a000 00000000 000a5a59
 r12-15: 000a5a59 000ff000 f00012a8 00000000
 r16-19: 00000001 08000059 c828c828 0000000b
 r20-23: 000000ff 00000041 c4f9b040 0000000b
 r24-27: ffffffff f0824800 f0824800 co266000
 r28-31: 000000d3 00000780 c4f9c940 c012dfc0
 sr 0-4: 00000000 00000000 00000000 00000000
 sr 4-8: 00000000 00000000 00000000 00000000

 IASQ: 00000000 00000000   IAOQ:  c01dc2e0 c01dc2e4
 IIR:  e840c000   ISR:  00000000   IOR:  c02aa705
 ORIG_R28:  00000000


and nothing more happens.
I saw in this list, that some people managed to boot linux on "model
735".
Did I miss something ?  Can anybody share kernel for 735 ?


A.K.


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From: Aleksandr Konstantinov <sanjak@tipas.lt>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Booting palinux on model 735 problems.
Date: Tue, 11 Jan 2000 15:12:12 +0200
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Sorry for double message.



Hello All.

  I have problem.
 We have here two HP Apollo 9000 Series 700 Model 735 boxes (both
identical).  I tried to boot
palinux-0.5.iso on one of them. Because boxes have no cdrom I did it
through network using 
rbootd (slightly modified to accept empty target names) giving it whole
cdrom device as target.
It started ok, listed all devices available on board and passed to (all
strings are copied from
screen)

  ASP version 20 at f0800000 found.

Then it waits a bit and writes at screen

  Running stack from ...

and dumps a lot of data. Then it ends with

  High Priority Machine Check (HPMC): Code=1 regs=c026d080
(Addr=00000000)
      YXrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
 PSW: 00000000000001101111110100001011
 r0-3:   00000000 c01dc000 c02a7050 c4f9c748
 r4-7:   0000002c c4ff6240 f0824800 ffffffdf
 r8-11:  ffffffff c027a000 00000000 000a5a59
 r12-15: 000a5a59 000ff000 f00012a8 00000000
 r16-19: 00000001 08000059 c828c828 0000000b
 r20-23: 000000ff 00000041 c4f9b040 0000000b
 r24-27: ffffffff f0824800 f0824800 co266000
 r28-31: 000000d3 00000780 c4f9c940 c012dfc0
 sr 0-4: 00000000 00000000 00000000 00000000
 sr 4-8: 00000000 00000000 00000000 00000000

 IASQ: 00000000 00000000   IAOQ:  c01dc2e0 c01dc2e4
 IIR:  e840c000   ISR:  00000000   IOR:  c02aa705
 ORIG_R28:  00000000


and nothing more happens.
I saw in this list, that some people managed to boot linux on "model
735".
Did I miss something ?  Can anybody share kernel for 735 ?


A.K.


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From: Greg Ingram <ingram@symsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] More C100 questions
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Hello again,

Well, I bought the C100 and I have a couple of more questions.  Er,
they're not Linux-specific yet, but I'll get there.

1)  Display.  I'd asked earlier (this list and the vendor) if I could
drive an off-the-shelf PC monitor.  Everybody liked my chances, the
connector on the back of the C100 looks like an [S]VGA connector, but it
doesn't seem to drive my fairly studly 17" HP monitor.  The C100's PROM
says this about the display adaptor:

MONITOR INFORMATION

    Slot #        HPA        State    Resolution   Frequency     Class
   ---------   ----------   -------   ----------   ---------   ---------
   graphics0   f8000000     Empty
   graphics3   f4000000     Empty
   graphics4   f6000000     Present   1280x1024    75Hz        VESA
   graphics1   fa000000     Empty

   Current Console Path:       core.SERIAL_1.9600.8.none

   Stable Store Console Path:  GRAPHICS3

The serial console is working fine.  Any suggestions as to the if/how I
can drive a PC monitor with this thing?  Is that 'Stable Store Console
Path' wrong?

2) SCSI.  It came with a two-user version of HP/UX installed on a 2 gig
wide SCSI drive BUT NO MEDIA.  So for the time being I plan to keep HP/UX
on this drive.  Apparently there's about 250 megs that aren't allocated.
Can Linux use an HP/UX partition?  The box has two SCSI connectors on the
back.  One is called a 'single-ended SCSI bus'.  If I had the right cable,
could I run an older SCSI drive?  I've got a 500 meg drive waiting for
something useful to do.

Kind regards,

- Greg



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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting palinux on model 735 problems.
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On Mon, Jan 11, 1999 at 02:50:46PM +0200, Aleksandr Konstantinov wrote:

1999?

> Hello All.
> 
>   I have problem.
>  We have here two HP Apollo 9000 Series 700 Model 735 boxes (both
> identical).  I tried to boot
> palinux-0.5.iso on one of them. Because boxes have no cdrom I did it
> through network using 
> rbootd (slightly modified to accept empty target names) giving it whole
> cdrom device as target.
> It started ok, listed all devices available on board and passed to (all
> strings are copied from
> screen)
> 
>   ASP version 20 at f0800000 found.
> 
> Then it waits a bit and writes at screen

See http://parisc-linux.org/faq.html question 8 - you probably need to
build/wait for a new kernel.

Richard


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] More C100 questions
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Greg Ingram wrote:
> 1)  Display.  I'd asked earlier (this list and the vendor) if I could
> drive an off-the-shelf PC monitor.

This should be in the FAQ: "Hit Tab key on power up. Keyboard and Display
must connected to respective ports. Firmware will cycle through known
display types. Hit return to select one". This is probably described
in any of the workstation ownwers guides at
	http://docs.hp.com/hpux/hw/index.html

I'm not sure where the FAQ lives these days.
Alex, can you add this?

...
> The serial console is working fine.  Any suggestions as to the if/how I
> can drive a PC monitor with this thing?  Is that 'Stable Store Console
> Path' wrong?

Can't tell. Need to know what slot your interface card is installed in.
Use "in io" on newer workstations/servers or "info" (?) on older ones
to find out what's installed and the PDC understands.
How to check is worth mentioning the "How do I hook up a Display" FAQ.

> 
> 2) SCSI.  It came with a two-user version of HP/UX installed on a 2 gig
> wide SCSI drive BUT NO MEDIA.  So for the time being I plan to keep HP/UX
> on this drive.  Apparently there's about 250 megs that aren't allocated.
> Can Linux use an HP/UX partition?

No. Only full disk supported until some one writes the LVM support
and also adds it to our boot loader, palo.

> The box has two SCSI connectors on the
> back.  One is called a 'single-ended SCSI bus'.  If I had the right cable,
> could I run an older SCSI drive?  I've got a 500 meg drive waiting for
> something useful to do.

Yes.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Hello Karsten,

I download the cvs dated 20010111 of linux and palo and it works also fine
on the C110 model but not yet on the B180 where it just show on the PDC
console:
	...
	Segment 0 ...
	Segment 1 ...
	Segment 2 ...
	branching to kernel entry 0x001001128
	set default PSW bit to 0

then nothing more neither on PDC neither on serial console before the login
prompt on the serial console?

Thanks a lot for the info,
	Joel

PS: Do you know which code to hack to try to make it works on B180?





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From: "Baz Valkema" <bvalkema@knowhowww.nl>
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Xref: news.gmane.org gmane.linux.ports.parisc:9143

Other thing to note when attaching a monitor to an workstation is that
some (old at least the 715/50) workstations have the sync-signal on green,
and no signal(s) on the h-sync and v-sync, which will make newer monitors
go into power-save state...


-----Oorspronkelijk bericht-----
Van: Grant Grundler [mailto:grundler@cup.hp.com]
Verzonden: donderdag 11 januari 2001 17:41
Aan: Greg Ingram
CC: parisc-linux
Onderwerp: Re: [parisc-linux] More C100 questions


Greg Ingram wrote:
> 1)  Display.  I'd asked earlier (this list and the vendor) if I could
> drive an off-the-shelf PC monitor.

This should be in the FAQ: "Hit Tab key on power up. Keyboard and Display
must connected to respective ports. Firmware will cycle through known
display types. Hit return to select one". This is probably described
in any of the workstation ownwers guides at
	http://docs.hp.com/hpux/hw/index.html

I'm not sure where the FAQ lives these days.
Alex, can you add this?

...
> The serial console is working fine.  Any suggestions as to the if/how I
> can drive a PC monitor with this thing?  Is that 'Stable Store Console
> Path' wrong?

Can't tell. Need to know what slot your interface card is installed in.
Use "in io" on newer workstations/servers or "info" (?) on older ones
to find out what's installed and the PDC understands.
How to check is worth mentioning the "How do I hook up a Display" FAQ.

>
> 2) SCSI.  It came with a two-user version of HP/UX installed on a 2 gig
> wide SCSI drive BUT NO MEDIA.  So for the time being I plan to keep HP/UX
> on this drive.  Apparently there's about 250 megs that aren't allocated.
> Can Linux use an HP/UX partition?

No. Only full disk supported until some one writes the LVM support
and also adds it to our boot loader, palo.

> The box has two SCSI connectors on the
> back.  One is called a 'single-ended SCSI bus'.  If I had the right cable,
> could I run an older SCSI drive?  I've got a 500 meg drive waiting for
> something useful to do.

Yes.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253

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From: Xavier Debacker <xavier.debacker@esiee.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ESIEE Team, to infinite and beyond
Date: Thu, 11 Jan 2001 21:02:44 +0100
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Hi,

We're really glad to announce that according to the success of the team,
ESIEE decided to let us continue the project.

Cherry on top, 7 more people will join us until march!

There are newbies, we'll manage them ;-)
there are also more experimented people.

ESIEE Team
http://www.esiee.fr/puffin

Mr Potato and Woody think that Buzz should say: To infinite, and beyond!





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Subject: Re: [parisc-linux] Ready to go!
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Xref: news.gmane.org gmane.linux.ports.parisc:9145

On Sat, May 29, 1999 at 11:12:19PM +0200, Hugo van der Kooij wrote:
> On Sat, 29 May 1999, Ross Sponholtz wrote:
> 
> > Alright!  I finally got my HP 715.  Now I need to get started with the project.  I was planning on getting MkLinux going, but apparently, the opengroup site with the software has been taken down.  Does anyone have the disk image that I could ftp?  Also, is everyone booting off the network (for development purposes)?
> 
> The 715/33 won't run mklinux at all. Basically one of the reasons I have
> set my hopes on the real PARISC port. (Which I will patiently await.)

Don't just wait, get involved!  :-)  There are several models of 715,
btw, he doesn't necessarily have the one model of 715 which mkLinux
won't work with.  I do though!

binfmt_som is coming on quite well, I'll hopefully have a first cut
released by tomorrow.  I'm not quite sure how it will tie in with
the rest of the code yet.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] Bug in more
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Hi,
  I have found a bug in 'more', util-linux-2.10r source.
At startup tailequ() is called to match the last component of argv[0]
against "page".  tailequ() is broken because it accesses one location
below the start of argv[0].  This causes a crash on parisc, where the
stack grows upwards and argv[0] is the first element on the stack.

Richard

--- util-linux-2.10r/text-utils/more.c-	Thu Jan 11 15:00:59 2001
+++ util-linux-2.10r/text-utils/more.c	Thu Jan 11 15:02:52 2001
@@ -815,8 +815,8 @@
 	register char *tail;
 
 	tail = path + strlen(path);
-	while (tail >= path)
-		if (*(--tail) == '/')
+	while (--tail >= path)
+		if (*tail == '/')
 			break;
 	++tail;
 	while (*tail++ == *string++)


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From: Andries.Brouwer@cwi.nl
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Subject: Re: [util-linux] Bug in more
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Thanks!
Applied.

Andries


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From: "Phillip D. Beal" <pdbeal@louisville.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/80 problem
Date: Thu, 11 Jan 2001 21:37:34 -0500
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Hey,

I've been testing and building and following the newest developments
with the PARISC port of linux.  However, I've hit a small snag with my
NFS/rbootd/bootp/tftp server.  I have two machines, a 735 and a 755,
that both boot without problem from the linux server.  using the same
kernel, and same config, I can't get a 715/80 to boot from the server.
However, I have built a working CD image of the kernel and stuff, and
my cd boots just fine.  The CD is using the CVS kernel from 20010109,
and the last cd contents from the palinux-0.5.iso cd image, with updated
vmlinux and iplboot.  unfortunatly, I've not had any luck at making my
newly aquired 715/80 to boot from this machine.  I did add it to the
bootptab, rbootd.conf, /etc/hosts, /etc/exports, and others that I don't
remeber right this minute.  My problem is that on the 715, it either
fails to load IPL or something dies trying to load IPL.  For the 735 and
755 I've been using the lifimage created under the palo source, for the
kernel that the systems load and boot.  Is there any other files as such
that a 715 needs that a 735 doesn't?  I've also noticed that the 735 and
755 require rbootd for netowrk boot, but the 715 looked as though it
didn't.  Does a 715 need extra options for bootp to work?  does it need
to load iplboot instead of lifimage?

I looked through the faq, but didn' see this question.

Great Job so far though, the STI console works well on the 715/80
through my cd that I created with your instructions.  However, the STI
looks a little odd on the 735 and 755, ie: some characters are not
displayed right yet...

Thanks,
-- 
Phillip Beal                           ___           _               _   
Electrical and Computer Engineering   | _ ) ___ __ _| |___  _ _  ___| |_ 
pdbeal@louisville.edu                 | _ \/ -_) _` | |_ /_| ' \/ -_)  _|
http://www.bealz.net/                 |___/\___\__,_|_/__(_)_||_\___|\__|


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From: Alex deVries <alex@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715/80 problem
Date: Thu, 11 Jan 2001 23:40:06 -0500
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"Phillip D. Beal" wrote:
> 
> Hey,
> 
> I've been testing and building and following the newest developments
> with the PARISC port of linux.  However, I've hit a small snag with my
> NFS/rbootd/bootp/tftp server.  I have two machines, a 735 and a 755,
> that both boot without problem from the linux server.  using the same
> kernel, and same config, I can't get a 715/80 to boot from the server.
> However, I have built a working CD image of the kernel and stuff, and
> my cd boots just fine.  The CD is using the CVS kernel from 20010109,
> and the last cd contents from the palinux-0.5.iso cd image, with updated
> vmlinux and iplboot.  unfortunatly, I've not had any luck at making my
> newly aquired 715/80 to boot from this machine.  

Okay... I *think* that 735 and 755 boot using rbootd.  The 715/new
(including 715/80) boot using bootp.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] 715/80 problem
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Alex deVries said:
> Okay... I *think* that 735 and 755 boot using rbootd.

The 735 certainly does.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


From - Thu Nov 08 21:15:03 2018
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From: Andrew Hollbach <andyh@shell.cyberus.ca>
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Subject: [parisc-linux] netlink ?
Date: Fri, 12 Jan 2001 05:30:39 -0500 (EST)
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Have got a very recent CVS kernel up and running on a 712/60
and want to use it for messing with the Linux IP advanced router
capabilities.

kernel .config has netlink and rtlink set, but ls -l /proc/net shows
no sign of netlink (compared to i386 which does) and iproute2 ip
reports:

ip a l
Cannot open netlink socket: Address family not supported by protocol

/var/log contents are not much use.

Can anyone help me understand why this doesn't just work right out
of the box :)

thanks much, Andy


extract of .config  ...

# Networking options
# 
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_NETLINK=y
CONFIG_RTNETLINK=y
CONFIG_NETLINK_DEV=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_RTNETLINK=y
CONFIG_NETLINK=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_FWMARK=y
CONFIG_IP_ROUTE_NAT=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_TOS=y
CONFIG_IP_ROUTE_VERBOSE=y


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Subject: Re: [parisc-linux] More C100 questions
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To: Grant Grundler <grundler@cup.hp.com>
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On Thu, Jan 11, 2001 at 08:41:24AM -0800, Grant Grundler wrote:
> I'm not sure where the FAQ lives these days.

it hasn't moved, you can add it yourself and it will be on the website
up to an hour later.  linuxcare still haven't responded to my offer
of having it do `pull' updates on demand which would reduce the lag to
typically ~30 seconds between cvs comit and it appearing on the website.

-- 
Revolutions do not require corporate support.


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The missing netlink has been found. The problem was that the
box was booting via BOOTP and used nfs root. Net initialization
seems to have been deferred and a whole bunch of network related
stuff built into the kernel just did not come up right.

Now that I'm booting off the local /dev/sda with the same kernel,
things seem much improved. /proc/net has about twice the entries now
and netlink works.

Thanks for the excellent kernel port, folks !

cheers, Andy


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From: "Chris Moore" <cmoore@cancun.rose.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Trying to get a 735 working
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Hello,

I'm trying to get a 735 to boot linux.  I don't currently have an x86
Linux machine on which to run the toolchain so I can't compile a
kernel, and the latest binary LIF image file at
ftp:puffin.external.hp.com:/pub/parisc/binaries/kernels/old
has an older kernel in it which won't boot on my 735.

Can anyone provide me witha LIF image that will work on my 735 so
that I can get it going?

Thanks,

Chris Moore


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Subject: Re: [parisc-linux] Trying to get a 735 working
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Chris Moore said:
> I'm trying to get a 735 to boot linux.  I don't currently have an x86
> Linux machine on which to run the toolchain so I can't compile a
> kernel, and the latest binary LIF image file at
> ftp:puffin.external.hp.com:/pub/parisc/binaries/kernels/old
> has an older kernel in it which won't boot on my 735.

Do you have any Unix-like system that you can run rbootd on?  The OS and
architecture is irrelevant.  This will allow you to boot from normal
compiled kernels over the network.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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From: "mgalgoci@redhat.com" <mgalgoci@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] fixed rbootd rpm
Date: Sat, 29 May 1999 17:24:14 -0400 (EDT)
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Hi folks
	I downloaded the rbootd rpm ftp the puffin site and 
found that the source rpm did not build properly on Red Hat
6.0, so I fixed it. To whom or to where should I send the fixed
binary and source rpms?

Cheers,

Matt

--
 Matt Galgoci /////////////////////////////////// "Moo?"
 Honorary Member of Generation Why. /////////////////// 
 //////////////////////////////////////////////////////
 Man....you smell like penguin.         Yes, have some. 



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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Oopser
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I'm interested in having a useful debugging tool written by someone who
knows the processor really well.  What I basically want to be able to
do is call oopser(10 * HZ) and have the machine reliably crash in 10
seconds time (and do a register dump).  that would at least tell me
where the kernel's got to.

it'd be most useful if it worked with interrupts disabled, but even
something which required interrupts to be enabled would be of some use.

-- 
Revolutions do not require corporate support.


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] semaphores
Date: Sat, 13 Jan 2001 08:18:35 +0000
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ok, bug found: i wasn't reenabling irqs if it had to sleep.  this patch
should fix that bug, but obviously there may be more.  Please someone
test this, I don't have access to any PA-RISC machines here in Sydney.
It's chockablock with debugging printk's, obviously i'll take those
out before committing this.

Index: arch/parisc/kernel/process.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/process.c,v
retrieving revision 1.26
diff -u -p -r1.26 process.c
--- process.c	2000/12/21 12:27:28	1.26
+++ process.c	2001/01/13 08:07:04
@@ -40,8 +40,6 @@
 #include <asm/gsc.h>
 #include <asm/processor.h>
 
-spinlock_t semaphore_wake_lock = SPIN_LOCK_UNLOCKED;
-
 #ifdef __LP64__
 /* The 64-bit code should work equally well in 32-bit land but I didn't
  * want to take the time to confirm that.  -PB
Index: arch/parisc/kernel/semaphore.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/semaphore.c,v
retrieving revision 1.3
diff -u -p -r1.3 semaphore.c
--- semaphore.c	2000/12/31 01:42:06	1.3
+++ semaphore.c	2001/01/13 08:07:05
@@ -1,15 +1,9 @@
 /*
- * Just taken from alpha implementation.
- * This can't work well, perhaps.
+ * Semaphore implementation Copyright (c) 2001 Matthew Wilcox
  */
-/*
- *  Generic semaphore code. Buyer beware. Do your own
- * specific changes in <asm/semaphore-helper.h>
- */
 
 #include <linux/sched.h>
-#include <asm/semaphore-helper.h>
-#include <asm/atomic.h>	/* for xchg() definitions */
+#include <linux/spinlock.h>
 
 /*
  * Semaphores are implemented using a two-way counter:
@@ -43,198 +37,124 @@
  */
 void __up(struct semaphore *sem)
 {
-	wake_one_more(sem);
 	wake_up(&sem->wait);
 }
-
-/*
- * Perform the "down" function.  Return zero for semaphore acquired,
- * return negative for signalled out of the function.
- *
- * If called from __down, the return is ignored and the wait loop is
- * not interruptible.  This means that a task waiting on a semaphore
- * using "down()" cannot be killed until someone does an "up()" on
- * the semaphore.
- *
- * If called from __down_interruptible, the return value gets checked
- * upon return.  If the return value is negative then the task continues
- * with the negative value in the return register (it can be tested by
- * the caller).
- *
- * Either form may be used in conjunction with "up()".
- *
- */
-
-
-#define DOWN_HEAD(task_state)						\
-									\
-									\
-	current->state = (task_state);					\
-	add_wait_queue(&sem->wait, &wait);				\
-									\
-	/*								\
-	 * Ok, we're set up.  sem->count is known to be less than zero	\
-	 * so we must wait.						\
-	 *								\
-	 * We can let go the lock for purposes of waiting.		\
-	 * We re-acquire it after awaking so as to protect		\
-	 * all semaphore operations.					\
-	 *								\
-	 * If "up()" is called before we call waking_non_zero() then	\
-	 * we will catch it right away.  If it is called later then	\
-	 * we will have to go through a wakeup cycle to catch it.	\
-	 *								\
-	 * Multiple waiters contend for the semaphore lock to see	\
-	 * who gets to gate through and who has to wait some more.	\
-	 */								\
-	for (;;) {
-
-#define DOWN_TAIL(task_state)			\
-		current->state = (task_state);	\
-	}					\
-	current->state = TASK_RUNNING;		\
-	remove_wait_queue(&sem->wait, &wait);
 
-void __down(struct semaphore * sem)
+void __down(struct semaphore * sem, int *irq_flags)
 {
+	int flags = *irq_flags;
 	DECLARE_WAITQUEUE(wait, current);
 
-	DOWN_HEAD(TASK_UNINTERRUPTIBLE)
-	if (waking_non_zero(sem))
-		break;
-	schedule();
-	DOWN_TAIL(TASK_UNINTERRUPTIBLE)
-}
+	/* protected by the sentry still -- use unlocked version */
+	__add_wait_queue_tail(&sem->wait, &wait);
+	spin_unlock_irqrestore(&sem->sentry, flags);
 
-int __down_interruptible(struct semaphore * sem)
-{
-	DECLARE_WAITQUEUE(wait, current);
-	int ret = 0;
-
-	DOWN_HEAD(TASK_INTERRUPTIBLE)
-
-	ret = waking_non_zero_interruptible(sem, current);
-	if (ret)
-	{
-		if (ret == 1)
-			/* ret != 0 only if we get interrupted -arca */
-			ret = 0;
-		break;
-	}
-	schedule();
-	DOWN_TAIL(TASK_INTERRUPTIBLE)
-	return ret;
-}
-
-int __down_trylock(struct semaphore * sem)
-{
-	return waking_non_zero_trylock(sem);
-}
-
-
-/* Wait for the lock to become unbiased.  Readers
- * are non-exclusive. =)
- */
-void down_read_failed(struct rw_semaphore *sem)
-{
-	DECLARE_WAITQUEUE(wait, current);
-
-	__up_read(sem);	/* this takes care of granting the lock */
-
-	add_wait_queue(&sem->wait, &wait);
-
-	while (atomic_read(&sem->count) < 0) {
-		set_task_state(current, TASK_UNINTERRUPTIBLE);
-		if (atomic_read(&sem->count) >= 0)
+	for(;;) {
+		set_task_state(current, TASK_INTERRUPTIBLE | TASK_EXCLUSIVE);
+		/* we can _read_ this without the sentry */
+		if (sem->count > 0)
 			break;
 		schedule();
 	}
 
-	remove_wait_queue(&sem->wait, &wait);
+	spin_lock_irqsave(&sem->sentry, flags);
+	__remove_wait_queue(&sem->wait, &wait);
 	current->state = TASK_RUNNING;
+
+	*irq_flags = flags;
 }
 
-void down_read_failed_biased(struct rw_semaphore *sem)
+int __down_interruptible(struct semaphore * sem, int *irq_flags)
 {
+	int flags = *irq_flags;
+	int ret = 0;
 	DECLARE_WAITQUEUE(wait, current);
 
-	add_wait_queue(&sem->wait, &wait);	/* put ourselves at the head of the list */
-
-	for (;;) {
-		if (sem->read_bias_granted && xchg(&sem->read_bias_granted, 0))
+	/* protected by the sentry still -- use unlocked version */
+	__add_wait_queue_tail(&sem->wait, &wait);
+	spin_unlock_irqrestore(&sem->sentry, flags);
+
+	for(;;) {
+		set_task_state(current, TASK_INTERRUPTIBLE | TASK_EXCLUSIVE);
+		/* we can _read_ this without the sentry */
+		if (sem->count > 0)
 			break;
-		set_task_state(current, TASK_UNINTERRUPTIBLE);
-                if (!sem->read_bias_granted)
-			schedule();
+		if (signal_pending(current)) {
+			ret = -EINTR;
+			break;
+		}
+		schedule();
 	}
 
-	remove_wait_queue(&sem->wait, &wait);
+	spin_lock_irqsave(&sem->sentry, flags);
+	__remove_wait_queue(&sem->wait, &wait);
 	current->state = TASK_RUNNING;
+
+	*irq_flags = flags;
+	return ret;
 }
 
+/* Read/write semaphores below this point */
 
-/* Wait for the lock to become unbiased. Since we're
- * a writer, we'll make ourselves exclusive.
- */
-void down_write_failed(struct rw_semaphore *sem)
+/* A writer already holds this lock, so we have to sleep. */
+void __down_read_failed(struct rw_semaphore *sem)
 {
 	DECLARE_WAITQUEUE(wait, current);
-
-	__up_write(sem);	/* this takes care of granting the lock */
 
-	add_wait_queue_exclusive(&sem->wait, &wait);
+	/* protected by the sentry still -- use unlocked version */
+	__add_wait_queue(&sem->readers, &wait);
+	spin_unlock(&sem->sentry);
 
-	while (atomic_read(&sem->count) < 0) {
-		set_task_state(current, TASK_UNINTERRUPTIBLE | TASK_EXCLUSIVE);
-		if (atomic_read(&sem->count) >= 0)
-			break;	/* we must attempt to aquire or bias the lock */
+	for(;;) {
+		set_task_state(current, TASK_UNINTERRUPTIBLE);
+		/* we can _read_ this without the sentry */
+		if (sem->rw_count > 0)
+			break;
 		schedule();
 	}
+	spin_lock(&sem->sentry);
 
-	remove_wait_queue(&sem->wait, &wait);
+	__remove_wait_queue(&sem->readers, &wait);
 	current->state = TASK_RUNNING;
 }
 
-void down_write_failed_biased(struct rw_semaphore *sem)
+/* Either a writer or some readers already hold this lock. */
+void __down_write_failed(struct rw_semaphore *sem)
 {
 	DECLARE_WAITQUEUE(wait, current);
 
-	add_wait_queue_exclusive(&sem->write_bias_wait, &wait);	/* put ourselves at the end of the list */
+	__add_wait_queue_tail(&sem->writers, &wait);
+	spin_unlock(&sem->sentry);
 
-	for (;;) {
-		if (sem->write_bias_granted && xchg(&sem->write_bias_granted, 0))
-			break;
+	for(;;) {
 		set_task_state(current, TASK_UNINTERRUPTIBLE | TASK_EXCLUSIVE);
-		if (!sem->write_bias_granted)
-			schedule();
+		/* we can _read_ this without the sentry */
+		if (sem->rw_count >= 0)
+			break;
+		schedule();
 	}
 
-	remove_wait_queue(&sem->write_bias_wait, &wait);
+	spin_lock(&sem->sentry);
+	__remove_wait_queue(&sem->writers, &wait);
 	current->state = TASK_RUNNING;
-
-	/* if the lock is currently unbiased, awaken the sleepers
-	 * FIXME: this wakes up the readers early in a bit of a
-	 * stampede -> bad!
-	 */
-	if (atomic_read(&sem->count) >= 0)
-		wake_up(&sem->wait);
 }
-
 
-/* Called when someone has done an up that transitioned from
- * negative to non-negative, meaning that the lock has been
- * granted to whomever owned the bias.
+/* Called when a writer has raised the semaphore.  There may still be
+ * other writers waiting, but the readers have priority now.
  */
 void rwsem_wake_readers(struct rw_semaphore *sem)
 {
-	if (xchg(&sem->read_bias_granted, 1))
-		BUG();
-	wake_up(&sem->wait);
+	/* We only reset the BIAS if no writers are waiting. */
+	if (!waitqueue_active(&sem->writers))
+		sem->rw_count += RW_LOCK_BIAS;
+
+	wake_up(&sem->readers);
 }
 
+/* Called when the last reader has raised the semaphore.  Other readers
+ * may be blocked until this point, but the writer gets priority now.
+ */
 void rwsem_wake_writer(struct rw_semaphore *sem)
 {
-	if (xchg(&sem->write_bias_granted, 1))
-		BUG();
-	wake_up(&sem->write_bias_wait);
+	wake_up(&sem->writers);
 }
Index: include/asm-parisc/semaphore.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/semaphore.h,v
retrieving revision 1.5
diff -u -p -r1.5 semaphore.h
--- semaphore.h	2000/08/11 23:40:13	1.5
+++ semaphore.h	2001/01/13 07:58:02
@@ -1,34 +1,28 @@
 #ifndef _ASM_PARISC_SEMAPHORE_H
 #define _ASM_PARISC_SEMAPHORE_H
 
-#include <linux/linkage.h>
-
 /*
  * SMP- and interrupt-safe semaphores.
  *
  * (C) Copyright 1996 Linus Torvalds
  *
- * SuperH verison by Niibe Yutaka
+ * PA-RISC version Copyright (c) 2001 Matthew Wilcox
  *
  */
 
-/* if you're going to use out-of-line slowpaths, use .section .lock.text,
- * not .text.lock or the -ffunction-sections monster will eat you alive
- */
-
 #include <linux/spinlock.h>
+#include <linux/wait.h>
 
 #include <asm/system.h>
-#include <asm/atomic.h>
 
 struct semaphore {
-	atomic_t count;
-	int waking;
+	spinlock_t	sentry;
+	int		count;
 	wait_queue_head_t wait;
 #if WAITQUEUE_DEBUG
 	long __magic;
 #endif
-};
+} ;
 
 #if WAITQUEUE_DEBUG
 # define __SEM_DEBUG_INIT(name) \
@@ -38,7 +32,7 @@ struct semaphore {
 #endif
 
 #define __SEMAPHORE_INITIALIZER(name,count) \
-{ ATOMIC_INIT(count), 0, __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \
+{ SPIN_LOCK_UNLOCKED, count, __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \
 	__SEM_DEBUG_INIT(name) }
 
 #define __MUTEX_INITIALIZER(name) \
@@ -52,18 +46,7 @@ struct semaphore {
 
 extern inline void sema_init (struct semaphore *sem, int val)
 {
-/*
- *	*sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val);
- *
- * i'd rather use the more flexible initialization above, but sadly
- * GCC 2.7.2.3 emits a bogus warning. EGCS doesnt. Oh well.
- */
-	atomic_set(&sem->count, val);
-	sem->waking = 0;
-	init_waitqueue_head(&sem->wait);
-#if WAITQUEUE_DEBUG
-	sem->__magic = (long)&sem->__magic;
-#endif
+	*sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val);
 }
 
 static inline void init_MUTEX (struct semaphore *sem)
@@ -76,50 +59,59 @@ static inline void init_MUTEX_LOCKED (st
 	sema_init(sem, 0);
 }
 
-asmlinkage void __down_failed(void /* special register calling convention */);
-asmlinkage int  __down_failed_interruptible(void  /* params in registers */);
-asmlinkage int  __down_failed_trylock(void  /* params in registers */);
-asmlinkage void __up_wakeup(void /* special register calling convention */);
-
-asmlinkage void __down(struct semaphore * sem);
-asmlinkage int  __down_interruptible(struct semaphore * sem);
-asmlinkage int  __down_trylock(struct semaphore * sem);
+asmlinkage void __down(struct semaphore * sem, int *irqflags);
+asmlinkage int  __down_interruptible(struct semaphore * sem, int *irqflags);
 asmlinkage void __up(struct semaphore * sem);
 
-extern spinlock_t semaphore_wake_lock;
+/* Sempahores can be `tried' from irq context.  So we have to disable
+ * interrupts while we're messing with the semaphore.  Sorry.
+ */
 
 extern __inline__ void down(struct semaphore * sem)
 {
+	int flags;
+	printk("down     %p\n", sem);
 #if WAITQUEUE_DEBUG
 	CHECK_MAGIC(sem->__magic);
 #endif
 
-	if (atomic_dec_return(&sem->count) < 0)
-		__down(sem);
+	spin_lock_irqsave(&sem->sentry, flags);
+	if (--sem->count < 0)
+		__down(sem, &flags);
+	spin_unlock_irqrestore(&sem->sentry, flags);
 }
 
 extern __inline__ int down_interruptible(struct semaphore * sem)
 {
+	int flags;
 	int ret = 0;
+	printk("down_int %p\n", sem);
 #if WAITQUEUE_DEBUG
 	CHECK_MAGIC(sem->__magic);
 #endif
 
-	if (atomic_dec_return(&sem->count) < 0)
-		ret = __down_interruptible(sem);
+	spin_lock_irqsave(&sem->sentry, flags);
+	if (--sem->count < 0)
+		ret = __down_interruptible(sem, &flags);
+	spin_unlock_irqrestore(&sem->sentry, flags);
 	return ret;
 }
 
+/* May not sleep. */
 extern __inline__ int down_trylock(struct semaphore * sem)
 {
-	int ret = 0;
+	int flags, count;
+	printk("down_try %p\n", sem);
 #if WAITQUEUE_DEBUG
 	CHECK_MAGIC(sem->__magic);
 #endif
 
-	if (atomic_dec_return(&sem->count) < 0)
-		ret = __down_trylock(sem);
-	return ret;
+	spin_lock_irqsave(&sem->sentry, flags);
+	count = sem->count - 1;
+	if (count >= 0)
+		sem->count = count;
+	spin_unlock_irqrestore(&sem->sentry, flags);
+	return (count >= 0);
 }
 
 /*
@@ -128,11 +120,16 @@ extern __inline__ int down_trylock(struc
  */
 extern __inline__ void up(struct semaphore * sem)
 {
+	int flags;
+	printk("up       %p\n", sem);
 #if WAITQUEUE_DEBUG
 	CHECK_MAGIC(sem->__magic);
 #endif
-	if (atomic_inc_return(&sem->count) <= 0)
+	spin_lock_irqsave(&sem->sentry, flags);
+	if (++sem->count <= 0)
 		__up(sem);
+	spin_unlock_irqrestore(&sem->sentry, flags);
+	printk("end_up   %p\n", sem);
 }
 
 /* rw mutexes (should that be mutices? =) -- throw rw
@@ -146,9 +143,8 @@ extern __inline__ void up(struct semapho
  * (in which case it goes to sleep).
  *
  * The value 0x01000000 supports up to 128 processors and
- * lots of processes.  BIAS must be chosen such that subl'ing
- * BIAS once per CPU will result in the long remaining
- * negative.
+ * lots of processes.  BIAS must be chosen such that subtracting
+ * BIAS twice will result in the value remaining negative.
  *
  * In terms of fairness, this should result in the lock
  * flopping back and forth between readers and writers
@@ -156,18 +152,19 @@ extern __inline__ void up(struct semapho
  *
  *              -ben
  */
+/* NOTE: There is currently no provision for attempting to acquire
+ * rw_sems from interrupt context.  These routines will require more
+ * work if this is to be allowed.
+ */
 struct rw_semaphore {
-        atomic_t                count;
-        volatile unsigned char  write_bias_granted;
-        volatile unsigned char  read_bias_granted;
-        volatile unsigned char  pad1;
-        volatile unsigned char  pad2;
-        wait_queue_head_t       wait;
-        wait_queue_head_t       write_bias_wait;
-#if WAITQUEUE_DEBUG
-        long                    __magic;
-        atomic_t                readers;
-        atomic_t                writers;
+	spinlock_t		sentry;
+	volatile int		rw_count;
+        wait_queue_head_t       writers;
+        wait_queue_head_t       readers;
+#if WAITQUEUE_DEBUG
+        long			__magic;
+        volatile int		n_readers;
+        volatile int		n_writers;
 #endif
 };
 
@@ -180,8 +177,8 @@ struct rw_semaphore {
 #define RW_LOCK_BIAS 0x01000000
 
 #define __RWSEM_INITIALIZER(name,count) \
-{ ATOMIC_INIT(count), 0, 0, 0, 0, __WAIT_QUEUE_HEAD_INITIALIZER((name).wait), \
-        __WAIT_QUEUE_HEAD_INITIALIZER((name).write_bias_wait) \
+{ SPIN_LOCK_UNLOCKED, count, __WAIT_QUEUE_HEAD_INITIALIZER((name).writers), \
+        __WAIT_QUEUE_HEAD_INITIALIZER((name).readers) \
         __SEM_DEBUG_INIT(name) __RWSEM_DEBUG_INIT }
 
 #define __DECLARE_RWSEM_GENERIC(name,count) \
@@ -193,109 +190,92 @@ struct rw_semaphore {
 
 extern inline void init_rwsem(struct rw_semaphore *sem)
 {
-        atomic_set(&sem->count, RW_LOCK_BIAS);
-        sem->read_bias_granted = 0;
-        sem->write_bias_granted = 0;
-        init_waitqueue_head(&sem->wait);
-        init_waitqueue_head(&sem->write_bias_wait);
-#if WAITQUEUE_DEBUG
-        sem->__magic = (long)&sem->__magic;
-        atomic_set(&sem->readers, 0);
-        atomic_set(&sem->writers, 0);
-#endif
+	*sem = (struct rw_semaphore) __RWSEM_INITIALIZER(*sem, RW_LOCK_BIAS);
 }
 
-#ifdef FIXME_WILLY_FIXME_FOR_REAL_THIS_TIME
-extern struct rw_semaphore *__build_read_lock(struct rw_semaphore *sem, const char *what);
-extern struct rw_semaphore *__build_write_lock(struct rw_semaphore *sem, const char *what);
-#endif
-
 /* we use FASTCALL convention for the helpers */
-extern struct rw_semaphore *FASTCALL(__down_read_failed(struct rw_semaphore *sem));
-extern struct rw_semaphore *FASTCALL(__down_write_failed(struct rw_semaphore *sem));
-extern struct rw_semaphore *FASTCALL(__rwsem_wake(struct rw_semaphore *sem));
+extern void FASTCALL(__down_read_failed(struct rw_semaphore *sem));
+extern void FASTCALL(__down_write_failed(struct rw_semaphore *sem));
+extern void FASTCALL(rwsem_wake_readers(struct rw_semaphore *sem));
+extern void FASTCALL(rwsem_wake_writer(struct rw_semaphore *sem));
 
 extern inline void down_read(struct rw_semaphore *sem)
 {
+	int count;
+	printk("down_read %p\n", sem);
+	spin_lock(&sem->sentry);
 #if WAITQUEUE_DEBUG
         if (sem->__magic != (long)&sem->__magic)
                 BUG();
-#endif
-#ifdef FIXME_WILLY_FIXME_FOR_REAL_THIS_TIME
-        __build_read_lock(sem, "__down_read_failed");
 #endif
+	count = sem->rw_count - 1;
+	if (count < 0)
+		__down_read_failed(sem);
+	sem->rw_count = count;
 #if WAITQUEUE_DEBUG
-        if (sem->write_bias_granted)
+        if (sem->n_writers)
                 BUG();
-        if (atomic_read(&sem->writers))
-                BUG();
-        atomic_inc(&sem->readers);
+        sem->n_readers++;
 #endif
+	spin_unlock(&sem->sentry);
 }
 
 extern inline void down_write(struct rw_semaphore *sem)
 {
+	int count;
+	printk("down_write %p\n", sem);
+	spin_lock(&sem->sentry);
 #if WAITQUEUE_DEBUG
         if (sem->__magic != (long)&sem->__magic)
                 BUG();
-#endif
-#ifdef FIXME_WILLY_FIXME_FOR_REAL_THIS_TIME
-        __build_write_lock(sem, "__down_write_failed");
 #endif
+	count = sem->rw_count - RW_LOCK_BIAS;
+	if (count != 0)
+		__down_write_failed(sem);
 #if WAITQUEUE_DEBUG
-        if (atomic_read(&sem->writers))
+        if (sem->n_writers)
                 BUG();
-        if (atomic_read(&sem->readers))
+        if (sem->n_readers)
                 BUG();
-        if (sem->read_bias_granted)
-                BUG();
-        if (sem->write_bias_granted)
-                BUG();
-        atomic_inc(&sem->writers);
+        sem->n_writers = 1;
 #endif
-}
-
-/* When a reader does a release, the only significant
- * case is when there was a writer waiting, and we've
- * bumped the count to 0: we must wake the writer up.
- */
-extern inline void __up_read(struct rw_semaphore *sem)
-{
-}
-
-/* releasing the writer is easy -- just release it and
- * wake up any sleepers.
- */
-extern inline void __up_write(struct rw_semaphore *sem)
-{
+	spin_unlock(&sem->sentry);
 }
 
 extern inline void up_read(struct rw_semaphore *sem)
 {
-#if WAITQUEUE_DEBUG
-        if (sem->write_bias_granted)
-                BUG();
-        if (atomic_read(&sem->writers))
-                BUG();
-        atomic_dec(&sem->readers);
-#endif
-        __up_read(sem);
+	int count;
+	printk("up_read %p\n", sem);
+	spin_lock(&sem->sentry);
+#if WAITQUEUE_DEBUG
+        if (sem->n_writers)
+                BUG();
+        sem->n_readers--;
+#endif
+	count = sem->rw_count++;
+	if (count == 0)
+		rwsem_wake_writer(sem);
+	spin_unlock(&sem->sentry);
 }
 
 extern inline void up_write(struct rw_semaphore *sem)
 {
-#if WAITQUEUE_DEBUG
-        if (sem->read_bias_granted)
-                BUG();
-        if (sem->write_bias_granted)
-                BUG();
-        if (atomic_read(&sem->readers))
-                BUG();
-        if (atomic_read(&sem->writers) != 1)
-                BUG();
-        atomic_dec(&sem->writers);
-#endif
-        __up_write(sem);
+	int count;
+	printk("up_write %p\n", sem);
+	spin_lock(&sem->sentry);
+#if WAITQUEUE_DEBUG
+        if (sem->n_readers)
+                BUG();
+        if (sem->n_writers != 1)
+                BUG();
+        sem->n_writers = 0;
+#endif
+	count = sem->rw_count;
+	if (count < 0)
+		rwsem_wake_readers(sem);
+	else
+		sem->rw_count = RW_LOCK_BIAS;
+	spin_unlock(&sem->sentry);
 }
 
 #endif /* _ASM_PARISC_SEMAPHORE_H */
Index: include/asm-parisc/spinlock.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/spinlock.h,v
retrieving revision 1.5
diff -u -p -r1.5 spinlock.h
--- spinlock.h	2000/11/08 20:36:55	1.5
+++ spinlock.h	2001/01/13 07:58:02
@@ -3,13 +3,10 @@
 
 #include <asm/system.h>
 
-/* if you're going to use out-of-line slowpaths, use .section .lock.text,
- * not .text.lock or the -ffunction-sections monster will eat you alive
+/* Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
+ * since it only has load-and-zero.
  */
 
-/* we seem to be the only architecture that uses 0 to mean locked - but we
- * have to.  prumpf */
-
 #undef SPIN_LOCK_UNLOCKED
 #define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 }
 
@@ -17,8 +14,15 @@
 
 #define spin_unlock_wait(x)	do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 1)
 
+#if 1
+#define spin_lock(x) do { \
+	while (__ldcw (&(x)->lock) == 0) \
+		while (((volatile int)(x)->lock) == 0) ; } while (0)
+
+#else
 #define spin_lock(x) \
 	do { while(__ldcw(&(x)->lock) == 0); } while(0)
+#endif
 	
 #define spin_unlock(x) \
 	do { (x)->lock = 1; } while(0)
Index: kernel/ksyms.c
===================================================================
RCS file: /home/cvs/parisc/linux/kernel/ksyms.c,v
retrieving revision 1.6
diff -u -p -r1.6 ksyms.c
--- ksyms.c	2000/11/10 21:45:04	1.6
+++ ksyms.c	2001/01/13 07:58:03
@@ -496,7 +496,9 @@ EXPORT_SYMBOL(is_bad_inode);
 EXPORT_SYMBOL(event);
 EXPORT_SYMBOL(__down);
 EXPORT_SYMBOL(__down_interruptible);
+#ifndef CONFIG_PARISC
 EXPORT_SYMBOL(__down_trylock);
+#endif
 EXPORT_SYMBOL(__up);
 EXPORT_SYMBOL(brw_page);
 

-- 
Revolutions do not require corporate support.


From - Thu Nov 08 21:15:03 2018
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X-Mozilla-Keys:                                                                                 
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Oopser
Date: Sat, 13 Jan 2001 09:08:38 -0800
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             <20010113073408.B16185@parcelfarce.linux.theplanet.co.uk> 
Xref: news.gmane.org gmane.linux.ports.parisc:9159

Matthew Wilcox wrote:
> 
> I'm interested in having a useful debugging tool written by someone who
> knows the processor really well.  What I basically want to be able to
> do is call oopser(10 * HZ) and have the machine reliably crash in 10
> seconds time (and do a register dump).  that would at least tell me
> where the kernel's got to.

static inline void oopser(unsigned long t)
{
	unsigned long flags;
	unsigned long addr=(unsigned long) -8L;

	mdelay((t * 1000)/HZ);

	/* Oopsy doopsy willy fall down and go boom :^) */
        asm volatile(
		"       rsm     2,%0
			ldwx    0(%2),%1"
		: "=&r" (flags), "=r" (t) : "r" (addr) );
}

mdelay watches CR16 and doesn't need (or even want) interrupts
enabled. If you want a register dump to console, call panic
or steal^H^H^H^H^Hborrow code from panic.
Otherwise it'll be in the HPMC portion of the PIM dump.
If it's truly inlined, GR2 and PC will be preserved.

I'm pretty sure -8L (reset vector?) won't work - but anything in
0xF-space (I/O space) which isn't ever used by platform devices
should work. Offhand I can't pick an address for all platforms.

grant

> it'd be most useful if it worked with interrupts disabled, but even
> something which required interrupts to be enabled would be of some use.
> 
> -- 
> Revolutions do not require corporate support.
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:15:04 2018
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X-Mozilla-Keys:                                                                                 
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Oopser
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Xref: news.gmane.org gmane.linux.ports.parisc:9160

On Sat, Jan 13, 2001 at 09:08:38AM -0800, Grant Grundler wrote:
> > I'm interested in having a useful debugging tool written by someone who
> > knows the processor really well.  What I basically want to be able to
> > do is call oopser(10 * HZ) and have the machine reliably crash in 10
> > seconds time (and do a register dump).  that would at least tell me
> > where the kernel's got to.

Sorry, I wasn't precise enough.  I want the rest of the kernel to continue
until the 10 seconds is up.

-- 
Revolutions do not require corporate support.


From - Thu Nov 08 21:15:04 2018
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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] semaphores
Date: Sat, 13 Jan 2001 11:33:26 -0800
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Matthew Wilcox wrote:
> 
> ok, bug found: i wasn't reenabling irqs if it had to sleep.  this patch
> should fix that bug, but obviously there may be more.  Please someone
> test this, I don't have access to any PA-RISC machines here in Sydney.

Tested on A500 and 64-bit wedges after kswapd.
Here's the output.

grant


Main Menu: Enter command or menu > bo lan
Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Network Station Address 00306e-03799f
System IP Address 15.8.80.77
Server IP Address 15.8.81.247

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@hpisp747 Wed Dec 27 14:27:46 PST 2000
0/vmlinux 2701749 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/'
Kernel: partition 0 file /vmlinux                                               
ELF64 executable                                                                
                                                                                
Entry 00100000 first 00100000 n 4                                               
Segment 0 load 00100000 size 1652568 mediaptr 0x1000                            
Segment 1 load 00294000 size 421808 mediaptr 0x195000                           
Segment 2 load 002fc000 size 101936 mediaptr 0x1fc000                           
Segment 3 load 00318000 size 16384 mediaptr 0x215000                            
branching to kernel entry point 0x00100000                                      
Set default PSW W bit to 1                                                      
PDC Console Initialized                                                         
The 64-bit Kernel has started...                                                
Enabled FP coprocessor                                                          
If this is the LAST MESSAGE YOU SEE, you're probably using                      
32-bit millicode by mistake.                                                    
Free memory starts at: 0xc035f000                                               
start_parisc(0x504d70,0x504d70,0x0,0x0)                                         
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpbo'
PALO initrd 0-0                                                                 
model   00005cb0 00000491 00000000 00000001 23355fdc 100000f0 00000008 000000b22
vers    00000300                                                                
cpuid   0000022a                                                                
CPUID   vers 17 rev 10                                                          
model   9000/800/A500-44                                                        
Searching for devices in PDC firmware... processor hpa 0xfffffffffffa0000       
Found devices:                                                                  
1. Crescendo 440 (0) at 0xfffffffffffa0000, versions 0x5cb, 0x0, 0x4, 0x0, 0x91 
2. Crescendo 440 (0) at 0xfffffffffffa2000, versions 0x5cb, 0x0, 0x4, 0x0, 0x91 
3. Crescendo Memory (1) at 0xfffffffffed08000, versions 0x9b, 0x0, 0x9, 0x0, 0x0
4. Astro BC Runway Port (12) at 0xfffffffffed00000, versions 0x582, 0x0, 0xb, 00
5. Elroy PCI Bridge (13) at 0xfffffffffed30000, versions 0x782, 0x0, 0xa, 0x0, 0
6. Elroy PCI Bridge (13) at 0xfffffffffed34000, versions 0x782, 0x0, 0xa, 0x0, 0
7. Elroy PCI Bridge (13) at 0xfffffffffed38000, versions 0x782, 0x0, 0xa, 0x0, 0
8. Elroy PCI Bridge (13) at 0xfffffffffed3c000, versions 0x782, 0x0, 0xa, 0x0, 0
That's a total of 8 devices.                                                    
CONFIG_SMP disabled - not claiming addional CPUs                                
Warning : device (0, 0x5cb, 0x0, 0x4, 0x0) NOT claimed by CPU PARISC            
CPU(s): 1 x PA8500 (PCX-W) at 440.000000 MHz                                    
Linux version 2.4.0-test10 (grundler@hpisp747) (gcc version 2.96 20000925 (expe1
free_bootmem(0x361000, 0xfc9f000)                                               
initrd: 00000000-00000000                                                       
pagetable_init                                                                  
On node 0 totalpages: 65536                                                     
zone(0): 32768 pages.                                                           
zone(1): 32768 pages.                                                           
zone(2): 0 pages.                                                               
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpb0
trap_init                                                                       
Calibrating delay loop... 878.18 BogoMIPS                                       
Memory: 249452k available                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
Dentry-cache hash table entries: 32768 (order: 7, 524288 bytes)                 
Buffer-cache hash table entries: 16384 (order: 5, 131072 bytes)                 
Page-cache hash table entries: 65536 (order: 7, 524288 bytes)                   
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
Inode-cache hash table entries: 16384 (order: 6, 262144 bytes)                  
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
POSIX conformance testing by UNIFIX                                             
lba version TR4.0 (0x5) found at 0xfffffffffed30000                             
lba range[2] : ignoring GMMIO (0xfffffff804000000)                              
PCI: dev PCI device 1000:000b type 64-bit                                       
PCI: dev PCI device 1000:000b type 64-bit                                       
PCI: dev PCI device 1000:000b type 64-bit                                       
PCI: dev PCI device 1000:000b type 64-bit                                       
lba version TR4.0 (0x5) found at 0xfffffffffed34000                             
lba range[2] : ignoring GMMIO (0xfffffff904000000)                              
lba version TR4.0 (0x5) found at 0xfffffffffed38000                             
lba range[2] : ignoring GMMIO (0xfffffffa04000000)                              
PCI: dev PCI device 1000:000b type 64-bit                                       
PCI: dev PCI device 1000:000b type 64-bit                                       
PCI: dev PCI device 1000:000b type 64-bit                                       
PCI: dev PCI device 1000:000b type 64-bit                                       
lba version TR4.0 (0x5) found at 0xfffffffffed3c000                             
lba range[2] : ignoring GMMIO (0xfffffffb04000000)                              
PCI : ignoring 30:00.0 PCI-PCI bridge - I/O BASE not configured                 
PCI : ignoring 30:02.0 PCI-PCI bridge - I/O BASE not configured                 
PCI: dev PCI device 1000:000b type 64-bit                                       
PCI: dev PCI device 1000:000b type 64-bit                                       
PCI: dev PCI device 1000:000b type 64-bit                                       
PCI: dev PCI device 1000:000b type 64-bit                                       
SBA found Astro 2.1 at 0xfffffffffed00000                                       
Linux NET4.0 for Linux 2.4                                                      
Based upon Swansea University Computer Society NET3.039                         
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
down     00000000c0327d70                                                       
up       00000000c0327d70                                                       
end_up   00000000c0327d70                                                       
Starting kswapd v1.8                                                            
down     00000000cfff0988                                                       
up       00000000cfff0988                                                       
end_up   00000000cfff0988                                                       


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From: LaMont Jones <lamont@hp.com>
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Subject: Re: [parisc-linux] Oopser
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> Sorry, I wasn't precise enough.  I want the rest of the kernel to continue
> until the 10 seconds is up.

The only way I've ever done this is to set a timer for 10 seconds, and have
the hander for said timer be panic, or reboot, or whatever you want it to
do...

That's going to require that timer interrupts work.

(I think MPE/iX _STILL_ has a routine in the kernel called delayed_reboot...)

lamont


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On Sat, Jan 13, 2001 at 02:45:54PM -0700, LaMont Jones wrote:
> The only way I've ever done this is to set a timer for 10 seconds, and have
> the hander for said timer be panic, or reboot, or whatever you want it to
> do...
> 
> That's going to require that timer interrupts work.
> 
> (I think MPE/iX _STILL_ has a routine in the kernel called delayed_reboot...)

jsm pointed out that i can get what i want by toc'ing the machine.
which i did know at one point... it was how i debugged the c3k.  doh.

-- 
Revolutions do not require corporate support.


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thanks for trying this, grant.  i'll continue trying to debug this when
i'm back from oz and have a machine to hand again.  trying to debug this
by proxy just isn't going to work.

of course anyone who wants to is welcome to try debugging it.

-- 
Revolutions do not require corporate support.


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On Fri, Jan 12, 2001 at 06:20:15PM +0800, Andrew Shugg wrote:
> Alex deVries said:
> > Okay... I *think* that 735 and 755 boot using rbootd.
> 
> The 735 certainly does.

Right I know that, but what file is used from a kernel build to boot a
715?  iplboot? lifimage? vmlinux?  I've tried all three, and the boot
sequence from the netowrk fails.  It can't load iplboot for some reason.
my bootptab looks identical to the one from the nfsroot howto, otherthan
the ip I'm giving is different.  what does it require to get iplboot to
load on a network boot for a 715 using bootp?

-- 
Phillip Beal                           ___           _               _   
Electrical and Computer Engineering   | _ ) ___ __ _| |___  _ _  ___| |_ 
pdbeal@louisville.edu                 | _ \/ -_) _` | |_ /_| ' \/ -_)  _|
http://www.bealz.net/                 |___/\___\__,_|_/__(_)_||_\___|\__|


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From: Alex deVries <alex@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715/80 problem
Date: Sun, 14 Jan 2001 01:04:03 -0500
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"Phillip D. Beal" wrote:
> 
> On Fri, Jan 12, 2001 at 06:20:15PM +0800, Andrew Shugg wrote:
> > Alex deVries said:
> > > Okay... I *think* that 735 and 755 boot using rbootd.
> >
> > The 735 certainly does.
> 
> Right I know that, but what file is used from a kernel build to boot a
> 715?  iplboot? lifimage? vmlinux?  

lifimage.  All parisc machines boot lifimage files.


> I've tried all three, and the boot
> sequence from the netowrk fails.  

I suspect there's a problem with your network boot server (ie. rbootd)
*not* the image you're booting.  Does the log output of rbootd indicated
a successful  transfer of the bootfile?  You can do this by running
'rbootd -d', which should spew debug info to the console.

- Alex


-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Keith Hopkins <keith_hopkins@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Ready to go!
Date: Sat, 29 May 1999 17:28:54 -0400
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Hugo.van.der.Kooij@caiw.nl wrote:
> 
> On Sat, 29 May 1999, Ross Sponholtz wrote:
> 
> > Alright!  I finally got my HP 715.  Now I need to get started with the project.  I was planning on getting MkLinux going, but apparently, the opengroup site with the software has been taken down.  Does anyone have the disk image that I could ftp?  Also, is everyone booting off the network (for development purposes)?
> 
> The 715/33 won't run mklinux at all. Basically one of the reasons I have
> set my hopes on the real PARISC port. (Which I will patiently await.)
> 

 Why are you waiting? (Patiently or otherwise)  Why not offer to get
involved in the project?


Keith Hopkins
- my opinions are my own and do not necessarily reflect those of my
employer -


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Subject: Re: [parisc-linux] 715/80 problem
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On Sun, Jan 14, 2001 at 01:04:03AM -0500, Alex deVries wrote:
> "Phillip D. Beal" wrote:
> > 
> > I've tried all three, and the boot
> > sequence from the netowrk fails.  
> 
> I suspect there's a problem with your network boot server (ie. rbootd)
> *not* the image you're booting.  Does the log output of rbootd indicated
> a successful  transfer of the bootfile?  You can do this by running
> 'rbootd -d', which should spew debug info to the console.

Well, the odd thing is that the network setup works fine for a 735 and
755, but not the 715.  But wait, you said a 715 uses bootp not rboot,
and I know the 735 and 755 use the rbootd and can boot from my network
setup.

-- 
Phillip Beal                           ___           _               _   
Electrical and Computer Engineering   | _ ) ___ __ _| |___  _ _  ___| |_ 
pdbeal@louisville.edu                 | _ \/ -_) _` | |_ /_| ' \/ -_)  _|
http://www.bealz.net/                 |___/\___\__,_|_/__(_)_||_\___|\__|


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From: Alex deVries <alex@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715/80 problem
Date: Sun, 14 Jan 2001 13:42:49 -0500
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"Phillip D. Beal" wrote:
> Well, the odd thing is that the network setup works fine for a 735 and
> 755, but not the 715.  But wait, you said a 715 uses bootp not rboot,
> and I know the 735 and 755 use the rbootd and can boot from my network
> setup.

Wait!  I said that 715/new uses bootp, but 715/old uses rbootd.

And I don't believe you when you say that your 735 and 755 netboot
properly. I'd be convinced if you showed me both a) the output of
'rbootd -d' and b) console output.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] 715/80 problem
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To: Alex deVries <alex@linuxcare.com>
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On Sun, Jan 14, 2001 at 01:42:49PM -0500, Alex deVries wrote:
> "Phillip D. Beal" wrote:
> > Well, the odd thing is that the network setup works fine for a 735 and
> > 755, but not the 715.  But wait, you said a 715 uses bootp not rboot,
> > and I know the 735 and 755 use the rbootd and can boot from my network
> > setup.
> 
> Wait!  I said that 715/new uses bootp, but 715/old uses rbootd.
> 
> And I don't believe you when you say that your 735 and 755 netboot
> properly. I'd be convinced if you showed me both a) the output of
> 'rbootd -d' and b) console output.

why's it so hard to believe he might have rbootd configured correctly,
but have made a typo in his tftpd / bootpd configuration?

Phillip, have you tried using tftp to fetch the image, for example?

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] semaphores
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Matthew Wilcox wrote:
> thanks for trying this, grant.  i'll continue trying to debug this when
> i'm back from oz and have a machine to hand again.  trying to debug this
> by proxy just isn't going to work.

Yeah...but it might not be your bug. I uploaded a new PDC (40.50) on my
A500 and rebuilt using TOB (w/o your semaphore patch) and built from
scratch. System hangs after "swapon" hits a break isns. If interested,
I can send you more details. jsm/rhirst/amodra already have details.

enjoy .au!
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715/80 problem
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Cc: "Phillip D. Beal" <pdbeal@louisville.edu>, parisc-linux@thepuffingroup.com
To: Alex deVries <alex@linuxcare.com>
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Alex deVries wrote:
> "Phillip D. Beal" wrote:
> > Well, the odd thing is that the network setup works fine for a 735 and
> > 755, but not the 715.  But wait, you said a 715 uses bootp not rboot,
> > and I know the 735 and 755 use the rbootd and can boot from my network
> > setup.
> 
> Wait!  I said that 715/new uses bootp, but 715/old uses rbootd.

715/80 == 715/new

new == 64, 80, 100. old == 33, 50, 75.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


From - Thu Nov 08 21:15:05 2018
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Subject: Re: [parisc-linux] semaphores
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On Sun, Jan 14, 2001 at 03:59:00PM -0800, Grant Grundler wrote:
> Matthew Wilcox wrote:
> > thanks for trying this, grant.  i'll continue trying to debug this when
> > i'm back from oz and have a machine to hand again.  trying to debug this
> > by proxy just isn't going to work.
> 
> Yeah...but it might not be your bug. I uploaded a new PDC (40.50) on my
> A500 and rebuilt using TOB (w/o your semaphore patch) and built from
> scratch. System hangs after "swapon" hits a break isns. If interested,
> I can send you more details. jsm/rhirst/amodra already have details.

I think it is my bug because that's where it used to hang on my 712.

-- 
Revolutions do not require corporate support.


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] configuration
Date: Mon, 15 Jan 2001 01:00:29 +0000
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is there a good reason that we duplicate large chunks of (for
example) the SCSI configuration menu (from drivers/scsi/Config.in)
in the arch/parisc/config.in file?  sparc / spac64 do the same as us,
but none of the other arches do.  do we have a good reason or is ths a
hysterical accident?

-- 
Revolutions do not require corporate support.


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] configuration
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Matthew Wilcox wrote:
> is there a good reason that we duplicate large chunks of (for
> example) the SCSI configuration menu (from drivers/scsi/Config.in)
> in the arch/parisc/config.in file?

Perhaps to set flags to defaults friendly to parisc?
Just guessing...

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:9176

This patch rids us of PIC_OFFSET_TABLE_REGNUM_SAVED, and the problems that
go with it.  Additionally, I reload the pic offset table register before
calls to guard against asm trashing r27/r19.  Hasn't bootstrapped yet, but
looks promising.  One possible fly in the ointment is whether any ABI
requires that r4 always be used to save the pic offset table reg.

	* config/pa/pa.h (PIC_OFFSET_TABLE_REGNUM_SAVED): Remove.
	(machine_function): Define.
	(PIC_OFFSET_TABLE_SAVE_RTX) : Define.
	(INIT_EXPANDERS): Define.
	* config/pa/pa.c (pa_init_machine_status, pa_free_machine_status,
	pa_init_expanders): New functions.
	(hppa_expand_prologue): Use PIC_OFFSET_TABLE_SAVE_RTX instead of
	PIC_OFFSET_TABLE_REGNUM_SAVED.
	* config/pa/pa.md: Use PIC_OFFSET_TABLE_SAVE_RTX instead of
	PIC_OFFSET_TABLE_REGNUM_SAVED throughout.  Restore pic offset
	table register before all calls as well as after.
	* config/pa/pa32-regs.h (CONDITIONAL_REGISTER_USAGE): Remove
	references to PIC_OFFSET_TABLE_REGNUM_SAVED.
	* config/pa/pa64-regs.h (CONDITIONAL_REGISTER_USAGE): Likewise.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.

diff -urp -xCVS egcs/gcc/config/pa/pa.c newegcs/gcc/config/pa/pa.c
--- egcs/gcc/config/pa/pa.c	Thu Jan  4 15:22:58 2001
+++ newegcs/gcc/config/pa/pa.c	Mon Jan 15 20:54:01 2001
@@ -2918,6 +2918,40 @@ output_function_prologue (file, size)
   remove_useless_addtr_insns (get_insns (), 0);
 }
 
+/* Functions to initialize pic_offset_table_save_rtx.
+   These will be called, via pointer variables,
+   from push_function_context and pop_function_context.  */
+
+static void
+pa_init_machine_status (p)
+     struct function *p;
+{
+  p->machine = (machine_function *) xmalloc (sizeof (machine_function));
+
+  p->machine->pic_offset_table_save_rtx = gen_reg_rtx (Pmode);
+}
+
+static void
+pa_free_machine_status (p)
+     struct function *p;
+{
+  if (p->machine == NULL)
+    return;
+
+  free (p->machine);
+  p->machine = NULL;
+}
+
+/* Do anything needed before RTL is emitted for each function.  */
+
+void
+pa_init_expanders ()
+{
+  /* Arrange to save and restore machine status around nested functions.  */
+  init_machine_status = pa_init_machine_status;
+  free_machine_status = pa_free_machine_status;
+}
+
 void
 hppa_expand_prologue()
 {
@@ -3155,17 +3189,10 @@ hppa_expand_prologue()
 
      So instead, we copy the PIC register into a reserved callee saved
      register in the prologue.  Then after each call we reload the PIC
-     register from the callee saved register.  We also reload the PIC
-     register from the callee saved register in the epilogue ensure the
-     PIC register is valid at function exit.
-
-     This may (depending on the exact characteristics of the function)
-     even be more efficient. 
-
-     Avoid this if the callee saved register wasn't used (these are
-     leaf functions).  */
-  if (flag_pic && regs_ever_live[PIC_OFFSET_TABLE_REGNUM_SAVED])
-    emit_move_insn (gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED),
+     register from the callee saved register.  */
+
+  if (flag_pic && HARD_REGISTER_P (PIC_OFFSET_TABLE_SAVE_RTX))
+    emit_move_insn (PIC_OFFSET_TABLE_SAVE_RTX,
 		    gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM));
 }
 
Only in newegcs/gcc/config/pa: pa.c~
diff -urp -xCVS egcs/gcc/config/pa/pa.h newegcs/gcc/config/pa/pa.h
--- egcs/gcc/config/pa/pa.h	Thu Jan  4 15:22:58 2001
+++ newegcs/gcc/config/pa/pa.h	Mon Jan 15 20:54:01 2001
@@ -70,6 +70,14 @@ enum architecture_type
   ARCHITECTURE_20
 };
 
+struct rtx_def;
+/* A C structure for machine-specific, per-function data.
+   This is added to the cfun structure.  */
+typedef struct machine_function
+{
+  struct rtx_def *pic_offset_table_save_rtx;
+} machine_function;
+
 /* For -march= option.  */
 extern const char *pa_arch_string;
 extern enum architecture_type pa_arch;
@@ -493,8 +501,8 @@ extern int target_flags;
 #define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED 1
 
 /* Register into which we save the PIC_OFFEST_TABLE_REGNUM so that it
-   can be restore across function calls.  */
-#define PIC_OFFSET_TABLE_REGNUM_SAVED 4
+   can be restored across function calls.  */
+#define PIC_OFFSET_TABLE_SAVE_RTX (cfun->machine->pic_offset_table_save_rtx)
 
 #define DEFAULT_PCC_STRUCT_RETURN 0
 
@@ -854,6 +862,10 @@ extern enum cmp_type hppa_branch_type;
 	     DELTA, target_name, DELTA); \
   fprintf (FILE, "\n\t.EXIT\n\t.PROCEND\n"); \
 }
+
+/* Initialize data used by insn expanders.  This is called from
+   init_emit, once for each function, before code is generated. */
+#define INIT_EXPANDERS pa_init_expanders ()
 
 /* This macro generates the assembly code for function entry.
    FILE is a stdio stream to output the code to.
Only in newegcs/gcc/config/pa: pa.h~
diff -urp -xCVS egcs/gcc/config/pa/pa.md newegcs/gcc/config/pa/pa.md
--- egcs/gcc/config/pa/pa.md	Mon Jan  8 22:47:00 2001
+++ newegcs/gcc/config/pa/pa.md	Mon Jan 15 20:53:58 2001
@@ -5711,6 +5711,7 @@
     emit_move_insn (arg_pointer_rtx,
 		    gen_rtx_PLUS (word_mode, virtual_outgoing_args_rtx,
 				  GEN_INT (64)));
+  emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
 
   /* Use two different patterns for calls to explicitly named functions
      and calls through function pointers.  This is necessary as these two
@@ -5735,18 +5736,12 @@
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
-	       gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
       if (TARGET_64BIT)
 	use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_rtx);
 
       /* After each call we must restore the PIC register, even if it
-	 doesn't appear to be used.
-
-         This will set regs_ever_live for the callee saved register we
-	 stored the PIC register in.  */
-      emit_move_insn (pic_offset_table_rtx,
-		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
+	 doesn't appear to be used.  */
+      emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
     }
   DONE;
 }")
@@ -5888,6 +5883,8 @@
 		    gen_rtx_PLUS (word_mode, virtual_outgoing_args_rtx,
 				  GEN_INT (64)));
 
+  emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
+
   /* Use two different patterns for calls to explicitly named functions
      and calls through function pointers.  This is necessary as these two
      types of calls use different calling conventions, and CSE might try
@@ -5915,18 +5912,12 @@
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
-	       gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
       if (TARGET_64BIT)
 	use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_rtx);
 
       /* After each call we must restore the PIC register, even if it
-	 doesn't appear to be used.
-
-         This will set regs_ever_live for the callee saved register we
-	 stored the PIC register in.  */
-      emit_move_insn (pic_offset_table_rtx,
-		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
+	 doesn't appear to be used.  */
+      emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
     }
   DONE;
 }")
@@ -6090,22 +6081,18 @@
 
   op = XEXP (operands[0], 0);
 
+  emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
+
   /* We do not allow indirect sibling calls.  */
   call_insn = emit_call_insn (gen_sibcall_internal_symref (op, operands[1]));
 
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
-	       gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
 
       /* After each call we must restore the PIC register, even if it
-	 doesn't appear to be used.
-
-         This will set regs_ever_live for the callee saved register we
-	 stored the PIC register in.  */
-      emit_move_insn (pic_offset_table_rtx,
-		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
+	 doesn't appear to be used.  */
+      emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
     }
   DONE;
 }")
@@ -6151,6 +6138,8 @@
 
   op = XEXP (operands[1], 0);
 
+  emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
+
   /* We do not allow indirect sibling calls.  */
   call_insn = emit_call_insn (gen_sibcall_value_internal_symref (operands[0],
 								 op,
@@ -6158,16 +6147,10 @@
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
-	       gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
 
       /* After each call we must restore the PIC register, even if it
-	 doesn't appear to be used.
-
-         This will set regs_ever_live for the callee saved register we
-	 stored the PIC register in.  */
-      emit_move_insn (pic_offset_table_rtx,
-		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
+	 doesn't appear to be used.  */
+      emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
     }
   DONE;
 }")
Only in newegcs/gcc/config/pa: pa.md~
diff -urp -xCVS egcs/gcc/config/pa/pa32-regs.h newegcs/gcc/config/pa/pa32-regs.h
--- egcs/gcc/config/pa/pa32-regs.h	Thu Jan 11 16:10:48 2001
+++ newegcs/gcc/config/pa/pa32-regs.h	Mon Jan 15 18:22:39 2001
@@ -110,11 +110,7 @@
 	fixed_regs[i] = call_used_regs[i] = 1; 	\
     }						\
   if (flag_pic)					\
-    {						\
-      fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
-      fixed_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
-      call_used_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
-    }						\
+    fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
 }
 
 /* Allocate the call used registers first.  This should minimize
diff -urp -xCVS egcs/gcc/config/pa/pa64-regs.h newegcs/gcc/config/pa/pa64-regs.h
--- egcs/gcc/config/pa/pa64-regs.h	Thu Jan 11 16:10:48 2001
+++ newegcs/gcc/config/pa/pa64-regs.h	Mon Jan 15 18:22:40 2001
@@ -109,11 +109,7 @@ Boston, MA 02111-1307, USA.  */
 	fixed_regs[i] = call_used_regs[i] = 1; 	\
     }						\
   if (flag_pic)					\
-    {						\
-      fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
-      fixed_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
-      call_used_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
-    }						\
+    fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
 }
 
 /* Allocate the call used registers first.  This should minimize


From - Thu Nov 08 21:15:05 2018
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X-Mozilla-Keys:                                                                                 
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] overuse of tables in new website
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n.b.  i'd be happy to report things like this to an individual if anyone
at linuxcare answered email about the website.

the new website uses lots of unnecessary tables.  let's take the header
image as an example, since it was the first i came across.  the original
code looks like this (reformatted to indicate structure):

<table border=0 cellpadding=0 cellspacing=0 width="100%">
  <tr>
    <td width="10%">
      <table width="100%" cellpadding=0 cellspacing=0 border=0 background="&base;/images/pa-masthead-lines.png">
        <tr>
          <td>
            <img src="&base;/images/pa-masthead-lines.png" width="6" height="63" alt="" border="0">
          </td>
        </tr>
      </table>
    </td>
    <td align="center" width="80%">
      <map name="masthead">
        <area alt="Hewlett Packard Homepage" coords="5,1,84,62" href="http://www.hp.com">
        <area alt="Linuxcare Homepage" coords="565,10,736,54" href="http://www.linuxcare.com">
      </map>
      <img src="&base;/images/pa-masthead-center-a.gif" width="735" height="63" border="0" usemap="#masthead">
    </td>
    <td width="10%">
      <table width="100%" cellpadding=0 cellspacing=0 border=0 background="&base;/images/pa-masthead-lines.png">
        <tr>
          <td>
            <img src="&base;/images/pa-masthead-lines.png" width="6" height="63" alt="" border="0">
          </td>
        </tr>
      </table>
    </td>
  </tr>
</table>

as far as i an tell using netscape 4.76 on linux, the following looks
identical.

<table cellpadding=0 cellspacing=0 border=0>
  <tr>
    <td>
      <img src="&base;/images/pa-masthead-lines.png" width=6 height=63 alt="" border=0>
    </td><td>
      <map name="masthead">
        <area alt="Hewlett Packard Homepage" coords="5,1,84,62" href="http://www.hp.com">
        <area alt="Linuxcare Homepage" coords="565,10,736,54" href="http://www.linuxcare.com">
      </map>
      <img src="&base;/images/pa-masthead-center-a.gif" width=735 height=63 border=0 usemap="#masthead">
    </td><td>
      <img src="&base;/images/pa-masthead-lines.png" width=6 height=63 alt="" border=0>
    </td>
  </tr>
</table>

there are still things I dislike about this.  for example, it seems
to be using an imagemap unecessarily -- what's wrong with having
<left><hp><centre><linuxcare><right> with ordinary link tags on <hp>
and <linuxcare>?

if the argument is that it'll take longer to download with more images, then
why do we have the separate left and right masthead-lines images?  they complicate
the whole thing, and if they were amalgamated into the image this html could be cut down to:

<map name="masthead">
  <area alt="Hewlett Packard Homepage" coords="11,1,90,62" href="http://www.hp.com">
  <area alt="Linuxcare Homepage" coords="571,10,742,54" href="http://www.linuxcare.com">
</map>
<img src="&base;/images/pa-masthead-center-a.gif" width=747 height=63 border=0 usemap="#masthead">

which would please me by eliminating an awful lot of crap :-)

i have similar complaints about other bits, but i can't be bothered to
look at them closely when i have no idea whether anyone's paying any
attention to what i think.

-- 
Revolutions do not require corporate support.


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From: Hugo van der Kooij <Hugo.van.der.Kooij@caiw.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Ready to go!
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On Sat, 29 May 1999, Matthew Wilcox wrote:

> On Sat, May 29, 1999 at 11:12:19PM +0200, Hugo van der Kooij wrote:

> > The 715/33 won't run mklinux at all. Basically one of the reasons I have
> > set my hopes on the real PARISC port. (Which I will patiently await.)
> 
> Don't just wait, get involved!  :-)  There are several models of 715,
> btw, he doesn't necessarily have the one model of 715 which mkLinux
> won't work with.  I do though!

I am not a programmer. I may do testruns as soon as the kernel stuff goes
to alpha stage.

Quite busy with documentation projects. 

Hugo.
-- 
Hugo van der Kooij; Oranje Nassaustraat 16; 3155 VJ  Maasland
hvdkooij@caiw.nl		 http://www.caiw.nl/~hvdkooij/
--------------------------------------------------------------
Use of any of my email addresses for unsollicited (commercial)
    email is a clear intrusion of my privacy and illegal!


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--LQksG6bCIzRHxTLp
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

On Sun, Jan 14, 2001 at 08:13:56PM +0000, Matthew Wilcox wrote:
> On Sun, Jan 14, 2001 at 01:42:49PM -0500, Alex deVries wrote:
> > Wait!  I said that 715/new uses bootp, but 715/old uses rbootd.
> > 
> > And I don't believe you when you say that your 735 and 755 netboot
> > properly. I'd be convinced if you showed me both a) the output of
> > 'rbootd -d' and b) console output.
> 
> why's it so hard to believe he might have rbootd configured correctly,
> but have made a typo in his tftpd / bootpd configuration?
> 
> Phillip, have you tried using tftp to fetch the image, for example?

Well, Tftp works because the same build system also boots four HP
Xterminals through tftp, and the Xterminals work and boot fine, and yes
I can get the vmlinux through tftp.  I have attached a copy of my config
files and I'll send the console output on tuesday, its the only time
I'll have a chance to get to reboot the machines and watch the console
output again.  The one thing I'm wondering though, the 715/25 seems to
think it has two mac addresses.  This is why you'll see two configs for
parisc in the bootp config.

-- 
Phillip Beal                           ___           _               _   
Electrical and Computer Engineering   | _ ) ___ __ _| |___  _ _  ___| |_ 
pdbeal@louisville.edu                 | _ \/ -_) _` | |_ /_| ' \/ -_)  _|
http://www.bealz.net/                 |___/\___\__,_|_/__(_)_||_\___|\__|

--LQksG6bCIzRHxTLp
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=bootptab

# bootptab
#
# Created on 10/29/2000 by SYSPDB
# Used for ramdisk boot for "goat"
goat:\
   :hd=/tftpboot:\
   :bf=vmlinux:\
   :ht=ether:\
   :ha=080009323a5b:\
   :sm=255.255.255.0:\
   :hn:\
   :ip=192.168.1.187:\
   :vm=rfc1048:

monkey:\
   :hd=/tftpboot:\
   :bf=vmlinux:\
   :ht=ether:\
   :ha=080009832dd6:\
   :sm=255.255.255.0:\
   :hn:\
   :ip=192.168.1.188:\
   :vm=rfc1048:

parisc:\
   :hd=/tftpboot:\
   :bf=iplboot:\
   :ht=ether:\
   :ha=0800097b98b2:\
   :sm=255.255.255.0:\
   :hn:\
   :ip=192.168.1.180:\
   :vm=rfc1048:

parisc:\
   :hd=/tftpboot:\
   :bf=iplboot:\
   :ht=ether:\
   :ha=0800097b98b3:\
   :sm=255.255.255.0:\
   :hn:\
   :ip=192.168.1.180:\
   :vm=rfc1048:

horse:\
   :hd=/tftpboot:\
   :bf=vmlinux:\
   :ht=ether:\
   :ha=080009c4d28c:\
   :sm=255.255.255.0:\
   :hn:\
   :ip=192.168.1.189:\
   :vm=rfc1048:

lab03:\
   :ht=ether:\
   :ha=00104B8FA495:\ 
   :sm=255.255.255.0:\
   :hn:\
   :ip=192.168.1.203:\
   :vm=rfc1048:




--LQksG6bCIzRHxTLp
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="inetd.conf"

# See "man 8 inetd" for more information.
#
# If you make changes to this file, either reboot your machine or send the
# inetd a HUP signal with "/sbin/init.d/inetd reload" or by hand:
# Do a "ps x" as root and look up the pid of inetd. Then do a
# "kill -HUP <pid of inetd>".
# The inetd will re-read this file whenever it gets that signal.
#
# <service_name> <sock_type> <proto> <flags> <user> <server_path> <args>
#
# echo	stream	tcp	nowait	root	internal
# echo	dgram	udp	wait	root	internal
# discard	stream	tcp	nowait	root	internal
# discard	dgram	udp	wait	root	internal
# daytime	stream	tcp	nowait	root	internal
# daytime	dgram	udp	wait	root	internal
# chargen	stream	tcp	nowait	root	internal
# chargen	dgram	udp	wait	root	internal
time	stream	tcp	nowait	root	internal
time	dgram	udp	wait	root	internal
#
# These are standard services.
#
# ftp	stream	tcp	nowait	root	/usr/sbin/tcpd	wu.ftpd -a
# ftp	stream	tcp	nowait	root	/usr/sbin/tcpd	proftpd
ftp	stream	tcp	nowait	root	/usr/sbin/tcpd	in.ftpd
#
# If you want telnetd not to "keep-alives" (e.g. if it runs over a ISDN
# uplink), add "-n".  See 'man telnetd' for more details.
telnet	stream  tcp     nowait  root    /usr/sbin/tcpd	in.telnetd
# nntp	stream	tcp	nowait	news	/usr/sbin/tcpd	/usr/sbin/leafnode
# smtp	stream  tcp     nowait  root    /usr/sbin/sendmail    sendmail -bs
# printer	stream	tcp	nowait	root	/usr/sbin/tcpd	/usr/bin/lpd -i
#
# Shell, login, exec and talk are BSD protocols.
#  The option "-h" permits ``.rhosts'' files for the superuser. Please look at
#  man-page of rlogind and rshd to see more configuration possibilities about
#  .rhosts files.
shell	stream	tcp	nowait	root	/usr/sbin/tcpd	in.rshd -L
# shell	stream	tcp	nowait	root	/usr/sbin/tcpd	in.rshd -aL
#
# If you want rlogind not to "keep-alives" (e.g. if it runs over a ISDN
# uplink), add "-n".  See 'man rlogind' for more details.
login	stream	tcp	nowait	root	/usr/sbin/tcpd	in.rlogind
# login	stream	tcp	nowait	root	/usr/sbin/tcpd	in.rlogind -a
# exec	stream	tcp	nowait	root	/usr/sbin/tcpd	in.rexecd
talk	dgram	udp	wait	root	/usr/sbin/tcpd	in.talkd
ntalk	dgram	udp	wait	root	/usr/sbin/tcpd	in.talkd
#
#
# Pop et al
#
# pop2	stream	tcp	nowait	root	/usr/sbin/tcpd	in.pop2d
pop3	stream	tcp	nowait	root	/usr/sbin/tcpd	/usr/sbin/popper -s
#
# Imapd - Interactive Mail Access Protocol server
# Attention:  This service is very insecure
# imap	stream	tcp	nowait	root	/usr/sbin/tcpd	imapd
#
# Comsat - has to do with mail.
#
# comsat	dgram	udp	wait	root	/usr/sbin/tcpd	in.comsat
#
# The Internet UUCP service.
#
# uucp	stream	tcp	nowait	uucp	/usr/sbin/tcpd	/usr/lib/uucp/uucico	-l
#
# Tftp service is provided primarily for booting.  Most sites
# run this only on machines acting as "boot servers." 
#
tftp          dgram   udp     wait    root	/usr/sbin/tcpd  in.tftpd -s /tftpboot
#bootps	dgram	udp	wait	root	/usr/sbin/bootpd	bootpd -c /tftpboot
bootps	dgram	udp	wait	root	/usr/sbin/bootpd	bootpd -i -t 120
#
# Finger, systat and netstat give out user information which may be
# valuable to potential "system crackers."  Many sites choose to disable 
# some or all of these services to improve security.
# Try "telnet localhost systat" and "telnet localhost netstat" to see that
# information yourself!
#
finger	stream	tcp	nowait	nobody	/usr/sbin/tcpd	in.fingerd -w
# systat	stream	tcp	nowait	nobody	/usr/sbin/tcpd	/bin/ps	-auwwx
# netstat	stream	tcp	nowait	root	/usr/sbin/tcpd	/bin/netstat	-a
#
# For man on the fly and ht://dig (full text search)
#
http-rman	stream	tcp	nowait.10000	nobody	/usr/sbin/tcpd	/usr/sbin/http-rman
#
# For XCept4
#
# btx	stream	tcp	nowait	root	/usr/sbin/tcpd	/usr/lib/xcept4/bin/ceptd -i/usr/lib/xcept4/etc/init.ceptd -u/usr/lib/xcept4/etc/users.ceptd -l/var/log/log.ceptd
#
# For rplay daemon
#
# Old versions of rplay:
# rplay	dgram	udp	wait	root	/usr/sbin/tcpd	rplayd -b 8192 -c 60 -s 8192
# New Versions of rplay (>=3.3.0)
# rplay	dgram	udp	wait	root	/usr/sbin/tcpd	rplayd -t 30 -c 60 -s 16384 -F0 --inetd
#
# vbox (Voice Box)
# vboxd	stream	tcp	nowait	root	/usr/sbin/tcpd	/usr/sbin/vboxd
#
# For midinetd
# midinet	stream	tcp	nowait	root	/usr/sbin/tcpd	in.midinetd
#
# swat is the Samba Web Administration Tool
swat	stream	tcp	nowait.400	root	/usr/sbin/swat	swat
#
#
# amanda backup server with indexing capabilities
# amandaidx	stream	tcp	nowait	root	/usr/lib/amanda/amindexd amindexd
# amidxtape	stream	tcp	nowait	root	/usr/lib/amanda/amidxtaped amidxtaped
#
# amanda backup client
# amanda	dgram	udp	wait	amanda	/usr/lib/amanda/amandad amandad
#
# the rsync daemon
# rsync	stream	tcp	nowait	root	/usr/sbin/tcpd	/usr/sbin/rsyncd --daemon
#
#
# Mimer database
# mimer	stream	tcp	nowait	root	/opt/mimer/bin/mimtcp mimtcp -l
#
# CVS pserver (remote acces to your CVS repositories)
# Please read the section on security and passwords in the CVS manual,
# before you enable this.
# cvspserver stream tcp	nowait	root	/usr/sbin/tcpd	/usr/bin/cvs --allow-root=/home/cvsroot pserver
#
# procstatd deamon (cluster software)
# procstatd stream tcp	nowait	nobody	/usr/sbin/tcpd	/usr/sbin/procstatd -i 7885
#
# End.

--LQksG6bCIzRHxTLp
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="rbootd.conf"

#
# ethernet addr     boot file(s)        comments
#
08:00:09:32:3a:5b      vmlinux             # Linux
08:00:09:83:2d:d6      vmlinux             # Linux
08:00:09:c4:d2:8c      vmlinux             # Linux
08:00:09:7b:98:b2      iplboot             # Linux
08:00:09:7b:98:b3      iplboot             # Linux

--LQksG6bCIzRHxTLp--


From - Thu Nov 08 21:15:05 2018
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From: Jane Vinet <jvinet@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] website
Date: Mon, 15 Jan 2001 10:20:16 -0500
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To: Matthew Wilcox <matthew@wil.cx>
Original-X-From: jvinet@linuxcare.com  Mon Jan 15 08:11:38 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:9180

Hi Willy,

Sorry, I thought I had sent this early last week, however, I had it in
my drafts folder, I was not being unresponsive.

Matthew Wilcox wrote:
> 
> As I've mentioned before, I'm not happy with several aspects of the
> proposed replacement website.
> 
>  * I believe there is too much boilerplate HTML which will quickly get out
>    of sync between the different files.

Discussions between Linuxcare and Hewlett Packard have come to the
conclusion that HP are satisfied with the site and we are going to post
it the way it is now.  Please note that it will not stay static.  We
believe the site will evolve over time and some of the issues you have
brought up may be addressed in future developments.  As to your other
comments, please see below.

>  * The proposed site doesn't have the useful `last updated' feature.

You are right, the previous "last updated" showed the last chron job -
we will modify to show last time it was checked out of CVS.

>  * The text is too small.
>  * It uses too many tables.

I feel these are personal preferences - however, I will see what can be
done about the font

>  * The <title></title> gives no useful information (also a problem with the
>    current site.)

Absolutely correct, will address it with the web team
>  * Too many directories containing only one file.

The site was designed with the idea of growth in mind, in fact we looked
at the site map extensively before asking for an overhaul and we feel
that it is no more complicated than in the past and looks to the future
as well.

>  * It now requires perl to build.

The system uses perl as a preprocessor - we do not believe that there
are going to be any issues with this.

Jane

-- 
Jane Vinet, Director Professional Services/Canadian Operations
Linuxcare, Inc. 613.562.9260 (tel), 613.562.9700 fax
jvinet@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the Revolution


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
Date: Mon, 15 Jan 2001 11:24:22 -0500 (EST)
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Cc: law@redhat.com, gcc-patches@gcc.gnu.org,
        parisc-linux@puffin.external.hp.com
To: alan@linuxcare.com.au (Alan Modra)
Original-X-From: dave@hiauly1.hia.nrc.ca  Mon Jan 15 09:21:09 2001
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> This patch rids us of PIC_OFFSET_TABLE_REGNUM_SAVED, and the problems that
> go with it.  Additionally, I reload the pic offset table register before
> calls to guard against asm trashing r27/r19.  Hasn't bootstrapped yet, but
> looks promising.  One possible fly in the ointment is whether any ABI
> requires that r4 always be used to save the pic offset table reg.

At first glance, this looks like a good solution.  I don't see any requirement
that r4 be used to save the pic offset table reg in either ABI.

However, why is it necessary to guard against asms trashing r27/r19?  If
this happens, data access using gp won't work as well.  Shouldn't asms
ensure that they restore r27/r19 if they trash it?  If in fact r27/r19
needs to be restored prior to calls, it looks like it also needs to be
restored prior to each procedure return (see below).  This would prevent
the trivial return from ever being generated whenever pic code is used.
Thus, it seems necessary to ensure that r27/r19 is preserved from entry
to exit.

This is what the 64-Bit ABI says about r27:

GR 27 serves as the global pointer (gp).  This is a dedicated register with
special conventions.  Its use is subject to the following rules:

a) On entry to a procedure, gp is guaranteed valid for that procedure.

b) At any direct procedure call, gp must be valid (for the caller).  This
   guarantees that an import stub (see Section 5.2) can access the linkage
   table.

c) Any procedure call (indirect or direct) may destroy gp--unless the call
   is known to be local to the load module.

d) At procedure return, gp must be valid (for the returning procedure).
   This allows us to optimize calls known to be local (the exception to
   Rule `c').

The effect of these rules is that gp must be treated as a scratch register
at a point of call but a procedure must preserve it from entry to exit.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Jeffrey A Law <law@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
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  In message <200101151624.LAA26183@hiauly1.hia.nrc.ca>you write:
  > > This patch rids us of PIC_OFFSET_TABLE_REGNUM_SAVED, and the problems tha
  > t
  > > go with it.  Additionally, I reload the pic offset table register before
  > > calls to guard against asm trashing r27/r19.  Hasn't bootstrapped yet, bu
  > t
  > > looks promising.  One possible fly in the ointment is whether any ABI
  > > requires that r4 always be used to save the pic offset table reg.
  > 
  > At first glance, this looks like a good solution.  I don't see any
  > requirementthat r4 be used to save the pic offset table reg in either ABI.
It is not an ABI requirement.  It was done because GCC was unable 
reasonably cope with a PIC register that was call-clobbered.

  > However, why is it necessary to guard against asms trashing r27/r19?  If
  > this happens, data access using gp won't work as well.  Shouldn't asms
  > ensure that they restore r27/r19 if they trash it?  If in fact r27/r19
  > needs to be restored prior to calls, it looks like it also needs to be
  > restored prior to each procedure return (see below).  This would prevent
  > the trivial return from ever being generated whenever pic code is used.
  > Thus, it seems necessary to ensure that r27/r19 is preserved from entry
  > to exit.
If an ASM trashes a fixed register, then the ASM is responsible for restoring
it.

jeff


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Subject: [parisc-linux] Booting C100
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I seem to be getting close.  I'm using dhcpd (since I already run it on my
network) which receives a BOOTREQUEST and returns a BOOTREPLY.  Then the
C100 pulls an image via TFTP but I get this error:

	IPL error: bad LIF magic.

	Error reading IPL

I was trying vmlinux-20001018 from the FTP site.  Are there any other
precompiled kernels I should try?

- Greg



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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Booting C100
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Greg Ingram wrote:
> I was trying vmlinux-20001018 from the FTP site.

Did you read the FAQ? (Hint: question 5)

Step 2 says: Use a lifimage (not vmlinux)


Unfortunately, mkp's answer is now horribly stale.
Claims which are no longer accurate include:
o HPUX is required to build a lifimage (XC and native builds work on occasion)
o mongoose (HPUX) boot loader is an option (PALO required)
o Serial console required (can use STI now)
o mkp is working on superio ;^)

Any volunteers to write up a new version? 
(ESIEE team?)

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Jeffrey A Law <law@redhat.com>
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Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
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  In message <Pine.LNX.4.21.0101151430350.21322-100000@front.linuxcare.com.au>y
ou write:
  > This patch rids us of PIC_OFFSET_TABLE_REGNUM_SAVED, and the problems that
  > go with it.  Additionally, I reload the pic offset table register before
  > calls to guard against asm trashing r27/r19.  Hasn't bootstrapped yet, but
  > looks promising.  One possible fly in the ointment is whether any ABI
  > requires that r4 always be used to save the pic offset table reg.
  > 
  > 	* config/pa/pa.h (PIC_OFFSET_TABLE_REGNUM_SAVED): Remove.
  > 	(machine_function): Define.
  > 	(PIC_OFFSET_TABLE_SAVE_RTX) : Define.
  > 	(INIT_EXPANDERS): Define.
  > 	* config/pa/pa.c (pa_init_machine_status, pa_free_machine_status,
  > 	pa_init_expanders): New functions.
  > 	(hppa_expand_prologue): Use PIC_OFFSET_TABLE_SAVE_RTX instead of
  > 	PIC_OFFSET_TABLE_REGNUM_SAVED.
  > 	* config/pa/pa.md: Use PIC_OFFSET_TABLE_SAVE_RTX instead of
  > 	PIC_OFFSET_TABLE_REGNUM_SAVED throughout.  Restore pic offset
  > 	table register before all calls as well as after.
  > 	* config/pa/pa32-regs.h (CONDITIONAL_REGISTER_USAGE): Remove
  > 	references to PIC_OFFSET_TABLE_REGNUM_SAVED.
  > 	* config/pa/pa64-regs.h (CONDITIONAL_REGISTER_USAGE): Likewise.
First, if an ASM trashes a fixed register, then it is the ASM's responsibility
to restore it.  So that part of this patch is wrong.

The rest of it looks pretty reasonable and can be installed.

jeff


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From: Greg Ingram <ingram@symsys.com>
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Subject: Re: [parisc-linux] Booting C100
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On Mon, 15 Jan 2001, Grant Grundler wrote:

> Greg Ingram wrote:
> > I was trying vmlinux-20001018 from the FTP site.
> 
> Did you read the FAQ? (Hint: question 5)

Yes, but...

> Step 2 says: Use a lifimage (not vmlinux)

Anybody got one?  
 
> Unfortunately, mkp's answer is now horribly stale.
> Claims which are no longer accurate include:
> o HPUX is required to build a lifimage (XC and native builds work on occasion)
> o mongoose (HPUX) boot loader is an option (PALO required)
> o Serial console required (can use STI now)
> o mkp is working on superio ;^)

I don't have an environment to build my own kernel image yet. Obviously I
can't do a native build.  And I've got almost a week of HP/UX experience
now.  :)  What does it take to build a kernel under HP/UX?  I'm guessing
GCC+Binutils+Make as a minimum.  What are my chances with the
cross-compiler?

- Greg




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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Booting C100
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Greg Ingram wrote:
> > Step 2 says: Use a lifimage (not vmlinux)
> 
> Anybody got one?  

I've placed today's 32-bit on
  puffin.external.hp.com:~ftp/pub/parisc/binaries/lifimages/lifimage-20010115

and the matching vmlinux/System.map under .../binaries/kernels/ .


> What does it take to build a kernel under HP/UX?

I think I was the last person to be doing that as of around Feb 2000.
So it's not clear the tool chain will even properly compile under HPUX.
And CVS build-tools/recipe.hpux is probably broken - recipe.linux is.
Any volunteer to fix recipe.hpux?

AFAIK, the NFSROOT and XC toolchain has only been used under x86-linux.
Try on any other host at your own risk.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting C100
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Okay, I grabbed the cross-compiler and various sources and managed to
build a booting image.  Woohoo!  I also tried the lifimage you just posted
to the FTP site.  Both kernels died at GSC detection because it didn't
know the address f5fbf000.  I made this little change to ccio-dma.c:

--- arch/parisc/kernel/ccio-dma.c.orig  Mon Jan 15 12:40:05 2001
+++ arch/parisc/kernel/ccio-dma.c       Mon Jan 15 13:05:01 2001
@@ -1174,6 +1174,7 @@
 ** that can't be detected by PA/EISA/PCI bus walks.
 */
        switch((long) d->hpa) {
+       case 0xf5fbf000L:       /* C1O0 (wild guess!) */
        case 0xf7fbf000L:       /* C110 IOA0 LBC (aka GSC port) */
        case 0xf3fbf000L:       /* C110 IOA0 LBC (aka GSC port) */
                /* ccio_hpa same as C200 IOA0 */                                

It got past that point but crashed later.  Full boot log follows. I'm
looking at excluding the GSC stuff to see if the problem goes
away.  Updates at 11.

- Greg


Firmware Version  1.2

Duplex Console IO Dependent Code (IODC) revision 0

------------------------------------------------------------------------------
   (c) Copyright 1990-1996, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------

      0      100  Mhz   Active                 Functional          256 KB

  Central Bus Speed (in mhz)  :        100  
  Available Memory (bytes)    :  134217728  
  Good Memory Required (bytes):   26447872  


   Primary boot path:    core.FWSCSI.6.0
   Alternate boot path:  core.SCSI.2.0
   Console path:         GRAPHICS3
   Keyboard path:        core.PS2


Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


------- Main Menu -------------------------------------------------------------

        Command                         Description
        -------                         -----------

        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration menu              Displays or sets boot values
        INformation menu                Displays hardware information
        SERvice menu                    Displays service commands

        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command or menu > boot lan
Interact with IPL (Y or N)?> n

Booting... 
Network Station Address 080009-e8832b

Boot IO Dependent Code (IODC) revision 0


HARD Booted.
palo ipl root@ingram Mon Jan 15 12:24:52 CST 2001
0/vmlinux 2138962 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=10.10.10.2 console=ttyS0'
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100160 first 00100000 n 5
Segment 0 load 00100000 size 1431536 mediaptr 0x1000
Segment 1 load 0025e000 size 173080 mediaptr 0x15f000
Segment 2 load 0028c000 size 117492 mediaptr 0x18a000
Segment 3 load 002ac000 size 8192 mediaptr 0x1a7000
Segment 4 load 002d7144 size 496 mediaptr 0x1a9144
branching to kernel entry point 0x00100160
Set default PSW W bit to 0
PDC Console Initialized
The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02d8000
start_parisc(0x504d70,0x504d70,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=10.10.10.2 console=ttyS0'
PALO initrd 0-0
model   00005920 00000481 00000000 00000002 782482ee 100000f0 00000004 0000008a 0000008a
vers    0000000d
cpuid   0000016d
CPUID   vers 11 rev 13
model   9000/777/C100
led_init: CPU_HVERSION 592
led_init: chassis info: model 2, lcd_width=0, cmd_delay=40, ret0=8, ret1=8
LED display at f0190000 registered
Searching for devices in PDC firmware... processor hpa 0xfffa0000
a newer box...
Found devices:
1. Coral SGC Graphics (10) at 0xf6000000, versions 0x4, 0x0, 0x77, 0x0, 0x0
2. SkyHawk 100/120 FW-SCSI (4) at 0xf5f8c000, versions 0x1f, 0x0, 0x89, 0x0, 0x80
3. U2-IOA BC GSC+ Port (7) at 0xf5fbf000, versions 0x501, 0x1, 0xc, 0x0, 0x0
4. Raven T' Core BA (11) at 0xffd00000, versions 0x32, 0x0, 0x81, 0x0, 0x0
5. Raven T' Lasi Core RS-232 (10) at 0xffd05000, versions 0x32, 0x0, 0x8c, 0x0, 0x0
6. Raven T' Core SCSI (10) at 0xffd06000, versions 0x32, 0x0, 0x82, 0x0, 0x0
7. Raven T' Core LAN (802.3) (10) at 0xffd07000, versions 0x32, 0x0, 0x8a, 0x0, 0x0
8. Raven T' Core Centronics (10) at 0xffd02000, versions 0x32, 0x0, 0x74, 0x0, 0x0
9. Raven T' Core PC Floppy (10) at 0xffd0a000, versions 0x32, 0x0, 0x83, 0x0, 0x0
10. Raven T' Audio (10) at 0xffd04000, versions 0x32, 0x0, 0x7b, 0x0, 0x0
11. Raven T' Core PC Keyboard (10) at 0xffd08000, versions 0x32, 0x0, 0x84, 0x0, 0x0
12. Raven T' Core PC Keyboard (10) at 0xffd08100, versions 0x32, 0x0, 0x84, 0x0, 0x0
13. Raven T' Wax BA (11) at 0xffe00000, versions 0x1e, 0x0, 0x8e, 0x0, 0x0
14. Raven T' Wax EISA BA (11) at 0xfc000000, versions 0x1e, 0x0, 0x90, 0x0, 0x0
15. Raven T' Wax RS-232 (10) at 0xffe02000, versions 0x1e, 0x0, 0x8c, 0x0, 0x80
16. Raven T' Wax HIL (10) at 0xffe01000, versions 0x1e, 0x0, 0x73, 0x0, 0x0
That's a total of 16 devices.
No CPUs reported by firmware - probing...
Found CPU at fffa0000
CPU(s): 1 x PA7200 (PCX-T') at 100.000000 MHz
Linux version 2.4.0-test10 (root@ingram) (gcc version 2.96 20000925 (experimental)) #15 Mon Jan 15 12:40:31 CST 2001
free_bootmem(0x2d9000, 0x7d27000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=10.10.10.2 console=ttyS0
trap_init
Calibrating delay loop... 99.74 BogoMIPS
Memory: 125840k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
Found i82596 at 0xffd07000, IRQ 87
early initialization of device eth0 is deferred
Initializing Lasi PS/2-keyboard port at 0xffd08000...
Support for Lasi PS/2-psaux not yet available !
ccio found U2 GSC+ BC at 0xf5fbf000
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
Lasi PS/2 transmit buffer timeout
Lasi PS/2 transmit buffer timeout
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
eth0: 82596 at 0xffd07000, 08 00 09 E8 83 2B IRQ 87.
82596.c $Revision: 1.14 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled

Dumping Stack from c7f9c000 to c7f9ca80:
c000 00000000 00000040 00000000 00000000 c027346c 00000001 00000000 ffffffff
c020 00000000 00000000 00000000 00000000 00000000 00000000 ffffffff c0273384
c040 c0273384 00000034 c7f7c000 c02ac000 c027860c 00000000 00000000 00000000
c060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 00000000
c080 00000000 c02ac000 c02ac000 c7f70000 00000000 00000000 c7f70098 c02ac098
c0a0 00000000 c02c7978 00000000 c7f9c0ac c7f9c0ac c7f9c908 00000000 00000000
c0c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c0e0 c7f9c000 c011c0fc 00000000 00000019 00000000 00000000 00000025 00000000
c100 0000003e 00000000 00000000 00000000 00000000 00000000 00000000 80000000
c120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1c0 00000000 fffffeff 00000000 ffffffff 00000000 c027401c ffffffff ffffffff
c1e0 ffffffff ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff
c200 ffffffff ffffffff 00000800 00000800 00000400 00000400 ffffffff ffffffff
c220 ffffffff ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000
c240 00000000 00000000 00000000 00000000 00000000 00000000 00008000 21998304
c260 21998304 c013e478 00010000 c7ffeba0 c0225e0c c0236370 000000f0 00504d70
c280 00000000 c011a85c c02c6000 00008000 21998304 c02c6000 00000000 0004000a
c2a0 c02734a0 0000000b 00000024 0000003c 0000003e c0273000 00000001 00000000
c2c0 c01002a0 c02b2b4b 00000000 c02b2b6f 0000000b c02734a0 c0273000 f00000ac
c2e0 f00000a4 000000ff ffd05800 ffd05800 ffd05800 00000060 ffffffff ffd05800
c300 002b2540 c025e000 00000000 00000000 c02ac8c0 00000000 000b0800 00000000
c320 0000001f 00000000 0000001f 00000000 0000001f 00000000 00000000 00000000
c340 00000000 00000000 00000000 00000000 00000000 00000000 00000010 00000020
c360 7f7fffff ffffffff 43ebebeb e0000000 00000000 00000000 45e69c6a 25b7ea20
c380 41800000 00000000 00000010 00000010 00000000 00000000 00000040 00000080
c3a0 00000100 00000200 00000400 00000800 7fffffff 7fffffff 41000000 00000000
c3c0 7fffffff 7fffffff 40800000 00000000 41000000 00000000 40300000 00000000
c3e0 40200000 00000000 40200000 00000000 41800000 7fffffff 40000000 00000000
c400 40000000 00000000 40800000 00000000 41000000 00000000 00000000 00000000
c420 c7f9c800 c0105cf4 00000000 00000000 00000000 00000000 00000000 00000000
c440 c011a84c c011a850 40800000 00000000 00279000 00000000 c0278040 c0278064
c460 00000000 c0278204 00000000 00000000 00000000 c7f9c470 00000000 00000000
c480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4a0 cf7928b3 9ef25167 3de4a2cf 7bbff0cc f70954ca ee12a995 dc25532b b84aa657
c4c0 70954caf e15c2c0c c2b85819 8570b033 0ae16067 15b4759c 2b1e5e6a 564a0986
c4e0 ace2a65e 59c54cbd b3fc2c28 c0105c48 cf8605f0 9f0c0be1 3e1817c3 7c469ad4
c500 c02ac000 00000000 c02ac640 c7dc07d7 8fb80faf 1f701f5f 3e968bec 7d5ba28a
c520 fac1f046 f583e08d eb07c11b c01002b4 ac1f046f 583e08df b00aa4ec 601549d9
c540 c05c26e0 80b84dc1 01709b83 02978254 c7f9c000 c027860c c02ac000 00000000
c560 c02ac640 aea9ca4e 5d53949d bad19c68 75a338d1 eb30c4f0 d66189e1 acc313c3
c580 59862787 b37afa5c 66f5f4b9 cd9d5c20 9b3ab841 36757083 6c9c5454 d94e1dfa
c5a0 b29c3bf5 653877eb ca065a84 c028d128 28196a13 50446174 a0fe77ba 41fcef75
c5c0 c027c000 00000001 0e4b1bb0 1ce08232 00000060 ffffffff 00000021 c0252c78
c5e0 99146cbb 3228d977 642707bc c028d06c 90717455 20e2e8ab 41b36404 83107d5a
c600 f00000a4 f00000ac f00010f4 00000000 00000001 0000004d 00000000 000000c5
c620 c028d8e0 000000f0 c02c7800 c02ca000 c025e000 c02c6000 c02a8af4 c02a8ab4
c640 c02a8af4 c02a8ab0 00000000 00000000 0000004d 00000000 000000c5 c028d8e0
c660 000000f0 c02c7800 c02ca000 c0294b6c c02c6000 c02a8af4 c02a8a94 c02c6000
c680 c02c2c8c c02c2d48 c027f4d0 00000040 c02421d8 c0241dcc c0241e80 c02421dc
c6a0 00000000 00000000 c02ca000 c0294ec8 c02c6000 00010800 c7f9c608 c02734a0
c6c0 c02c2d48 c02c2c8c 00005000 c027c6d0 00000001 c7ffeea0 c0242000 c0242000
c6e0 fffffffc c02c2d48 c0191ab0 c0190558 c027c61c 10000080 c02c2c8c c02c2d48
c700 c027f4d0 00000040 c0241f38 c0281c94 c0242000 00000000 c02c2c8c c02c2c8c
c720 c02c6000 c02c1fc4 c01e3e7c c011ace4 c0281dc0 c0281c64 c7f9c900 00000000
c740 c02c7844 00000000 c027f5a0 c02c7840 00000000 0000003c 0000003e c0273000
c760 00000001 c02b2ba3 00000004 c0155604 00000054 c02b2ba3 0000000b c02734a0
c780 c7f97eec 00008124 f00000a4 000000ff ffd05800 ffd05800 ffd05800 00000060
c7a0 ffffffff ffd05800 002b2540 c0294dc8 00000000 00000000 c7f9c980 00000000
c7c0 000b0800 00000000 0000001f 00000000 0000001f 00000000 0000001f 00000000
c7e0 00000000 00000000 00000000 c018e784 00000000 00000000 00000000 00000000
c800 00000010 00000020 7f7fffff ffffffff 43ebebeb e0000000 00000000 00000000
c820 45e69c6a 25b7ea20 41800000 00000000 00000010 00000010 00000000 00000000
c840 0006000b c02b2580 c018e784 c02c2c88 00000013 0000002f c02c3a6c c027f5a0
c860 ffffffff c0273000 c0191ab0 c02c2d48 fffffffc c0242000 c0242000 c02d49e8
c880 c0242000 c0242000 c02c2ccc 00000000 c02c3a6c c02c7000 ffffffff 00000040
c8a0 00000093 00000002 00000000 c025e000 00002580 0000002f c7f9ca80 c0294d90
c8c0 000b0800 00000000 0000001f 00000000 0000001f 00000000 0000001f 00000000
c8e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c900 00000010 00000020 7f7fffff ffffffff 43ebebeb e0000000 00000000 00000000
c920 45e69c6a 25b7ea20 41800000 00000000 00000010 00000010 00000000 00000000
c940 00000040 00000080 00000100 00000200 00000400 00000800 7fffffff 7fffffff
c960 41000000 00000000 7fffffff 7fffffff 40800000 00000000 41000000 00000000
c980 40300000 00000000 40200000 00000000 40200000 00000000 41800000 7fffffff
c9a0 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
c9c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c9e0 00000000 00000000 c010c8fc c010c900 00000010 00000010 00000000 00000000
ca00 00000000 00000000 00000001 00000020 00000017 0e781096 00000000 0000000c
ca20 00000000 00000000 7fffffff c0103504 40800000 00000000 41000000 00000000
ca40 80000000 c02c7800 c7f9c740 00000020 00000000 00000000 41800000 7fffffff
ca60 40000000 00000000 40000000 c0106704 40800000 00000000 41000000 00000000

Data access rights fault in kernel: Code=26 regs=c7f9c840 (Addr=0000000c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001011
r0-3     00000000 c02b2580 c018e784 c02c2c88
r4-7     00000013 0000002f c02c3a6c c027f5a0
r8-11    ffffffff c0273000 c0191ab0 c02c2d48
r12-15   fffffffc c0242000 c0242000 c02d49e8
r16-19   c0242000 c0242000 c02c2ccc 00000000
r20-23   c02c3a6c c02c7000 ffffffff 00000040
r24-27   00000093 00000002 00000000 c025e000
r28-31   00002580 0000002f c7f9ca80 c0294d90
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c010c8fc c010c900
 IIR: 0e781096    ISR: 00000000  IOR: 0000000c
ORIG_R28: 00000000








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From: Hugo van der Kooij <Hugo.van.der.Kooij@caiw.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Ready to go!
Date: Sun, 30 May 1999 01:30:05 +0200 (CEST)
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Please guys. Don't send message to me if you send them to the list as
well. I find 1 copy quite enough.

Hugo.

-- 
Hugo van der Kooij; Oranje Nassaustraat 16; 3155 VJ  Maasland
hvdkooij@caiw.nl		 http://www.caiw.nl/~hvdkooij/
--------------------------------------------------------------
Use of any of my email addresses for unsollicited (commercial)
    email is a clear intrusion of my privacy and illegal!


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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: [parisc-linux] website
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Re:

> >  * The text is too small.
> >  * It uses too many tables.
> 
> I feel these are personal preferences - however, I will see what can be
> done about the font

The key, probably the most important thing in web page design, is to
*NOT* override the user's font defaults.  Web pages with font sizes, colors, &
styles are simply evil.  There are pages I can no longer read with Netscape,
because the @#$%^ web designer went out of their way to choose a small
font...and that's *real* small on a 1600x1200 display!  MSIE let's me 
go to Tools/Internet Options/Accessibility and say:

   ignore font colors on page
   ignore font size on page

...which is simply wonderful.

www.hp.com is an excellent example of how *NOT* to design a web page, sadly.

Remember, the three most important things to consider when
designing a web page are: content, content, and content.
Look / feel / wow isn't in the top three!
 
-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com        


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Subject: Re: [parisc-linux] Booting C100
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> Anybody got one?

Yes. Want one ?

>> o HPUX is required to build a lifimage (XC and native builds work on
occasion)
>> o mongoose (HPUX) boot loader is an option (PALO required)
>> o Serial console required (can use STI now)

Can anybody explain me how to get console NOT on serial link ?

>> o mkp is working on superio ;^)


> I don't have an environment to build my own kernel image yet.
Obviously I
> can't do a native build.  And I've got almost a week of HP/UX
experience
> now.  :)  What does it take to build a kernel under HP/UX?  I'm
guessing
> GCC+Binutils+Make as a minimum.  What are my chances with the
> cross-compiler?

I used xc tools from palinux-0.5 on x86 linux (Slackware 3.6 + glibc).
Kernel was built satisfactory (despite a lot of warnings about
incompatible
argument types (as far as i remember)). Booting went ok.



A.K.





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Subject: Re: [parisc-linux] Booting C100
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Greg,

The ccio detection via GSC port is really a hack.   I will commit your patch
since we do not have a better way to detect the driver atm :)  Hopefully my
local tree will shape up today, and I can commit a new and improved ccio
driver.  Than I will start working on the I/O tree to eliminate this hack.

Thanks for the patch!

- Ryan



Greg Ingram wrote:

> Okay, I grabbed the cross-compiler and various sources and managed to
> build a booting image.  Woohoo!  I also tried the lifimage you just posted
> to the FTP site.  Both kernels died at GSC detection because it didn't
> know the address f5fbf000.  I made this little change to ccio-dma.c:
>
> --- arch/parisc/kernel/ccio-dma.c.orig  Mon Jan 15 12:40:05 2001
> +++ arch/parisc/kernel/ccio-dma.c       Mon Jan 15 13:05:01 2001
> @@ -1174,6 +1174,7 @@
>  ** that can't be detected by PA/EISA/PCI bus walks.
>  */
>         switch((long) d->hpa) {
> +       case 0xf5fbf000L:       /* C1O0 (wild guess!) */
>         case 0xf7fbf000L:       /* C110 IOA0 LBC (aka GSC port) */
>         case 0xf3fbf000L:       /* C110 IOA0 LBC (aka GSC port) */
>                 /* ccio_hpa same as C200 IOA0 */
>
> It got past that point but crashed later.  Full boot log follows. I'm
> looking at excluding the GSC stuff to see if the problem goes
> away.  Updates at 11.
>
> - Greg
>

[bootlog snipped]



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Hello again,

Thanks to the people who provided me with kernels (Phillip, and whoever
loaded a new one to the FTP site - Andrew?  Grant?).
I now have two fairly new kernels that both do the same thing - and
it's the same problem mentioned earlier this month by Aleksandr
Konstantinov.  I get as far as "parport_initialize_chip: initialize
bidirectional-mode".  Then I get an HPMC.

The isr.ior at the time of the HPMC indicates I'm at
parport_PS2_supported+0x64.
Also the register dump shows the HPA of the Outfield Core Centronics
interface in registers r6, r25, and r26.  I can't get much further
without (yet) being able to build kernels, but it looks like these kernels
don't like the Outfield Core Centronics.  I'd suspect that it was just
my system having bad hardware except that it sounds like at least one
other person has seen the same HPMC.

Has anyone else seen this problem on a 735?  Anyone have a fix?

Thanks,

Chris Moore


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From: Greg Ingram <ingram@symsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C100 Boots! (Mostly)
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Xref: news.gmane.org gmane.linux.ports.parisc:9194


I tracked down the crash on my C100 to somewhere inside register_console()
called from serial_console_init().  I tried a kernel without serial
console support but that stopped generating output too early, so I tried
just removing the register_console call() and now I get past mounting the
root filesystem before losing console output.  A log follows.  The machine
accepts telnet connections but telnet session won't start.  I get:

	telnetd: getpty: permission denied

I'm hoping that's just something to do with how I installed the root
filesystem.  Maybe it hasn't been remounted as writable?  I'm so close to
a shell! 

- Greg

HARD Booted.
palo ipl root@ingram Mon Jan 15 12:24:52 CST 2001
0/vmlinux 1992709 bytes @ 0x6800
0/palo-cmdline 'vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=192.168.1.64'
Kernel: partition 0 file vmlinux
ELF32 executable

Entry 00100130 first 00100000 n 5
Segment 0 load 00100000 size 1342972 mediaptr 0x1000
Segment 1 load 00248000 size 171784 mediaptr 0x149000
Segment 2 load 00274000 size 87204 mediaptr 0x173000
Segment 3 load 0028c000 size 8192 mediaptr 0x189000
Segment 4 load 002b7084 size 496 mediaptr 0x18b084
branching to kernel entry point 0x00100130
Set default PSW W bit to 0
PDC Console Initialized
The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02b8000
start_parisc(0x504d70,0x504d70,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=192.168.1.64'
PALO initrd 0-0
model   00005920 00000481 00000000 00000002 782482ee 100000f0 00000004 0000008a 0000008a
vers    0000000d
cpuid   0000016d
CPUID   vers 11 rev 13
model   9000/777/C100
led_init: CPU_HVERSION 592
led_init: chassis info: model 2, lcd_width=0, cmd_delay=40, ret0=8, ret1=8
LED display at f0190000 registered
Searching for devices in PDC firmware... processor hpa 0xfffa0000
a newer box...
Found devices:
1. Coral SGC Graphics (10) at 0xf6000000, versions 0x4, 0x0, 0x77, 0x0, 0x0
2. SkyHawk 100/120 FW-SCSI (4) at 0xf5f8c000, versions 0x1f, 0x0, 0x89, 0x0, 0x80
3. U2-IOA BC GSC+ Port (7) at 0xf5fbf000, versions 0x501, 0x1, 0xc, 0x0, 0x0
4. Raven T' Core BA (11) at 0xffd00000, versions 0x32, 0x0, 0x81, 0x0, 0x0
5. Raven T' Lasi Core RS-232 (10) at 0xffd05000, versions 0x32, 0x0, 0x8c, 0x0, 0x0
6. Raven T' Core SCSI (10) at 0xffd06000, versions 0x32, 0x0, 0x82, 0x0, 0x0
7. Raven T' Core LAN (802.3) (10) at 0xffd07000, versions 0x32, 0x0, 0x8a, 0x0, 0x0
8. Raven T' Core Centronics (10) at 0xffd02000, versions 0x32, 0x0, 0x74, 0x0, 0x0
9. Raven T' Core PC Floppy (10) at 0xffd0a000, versions 0x32, 0x0, 0x83, 0x0, 0x0
10. Raven T' Audio (10) at 0xffd04000, versions 0x32, 0x0, 0x7b, 0x0, 0x0
11. Raven T' Core PC Keyboard (10) at 0xffd08000, versions 0x32, 0x0, 0x84, 0x0, 0x0
12. Raven T' Core PC Keyboard (10) at 0xffd08100, versions 0x32, 0x0, 0x84, 0x0, 0x0
13. Raven T' Wax BA (11) at 0xffe00000, versions 0x1e, 0x0, 0x8e, 0x0, 0x0
14. Raven T' Wax EISA BA (11) at 0xfc000000, versions 0x1e, 0x0, 0x90, 0x0, 0x0
15. Raven T' Wax RS-232 (10) at 0xffe02000, versions 0x1e, 0x0, 0x8c, 0x0, 0x80
16. Raven T' Wax HIL (10) at 0xffe01000, versions 0x1e, 0x0, 0x73, 0x0, 0x0
That's a total of 16 devices.
No CPUs reported by firmware - probing...
Found CPU at fffa0000
CPU(s): 1 x PA7200 (PCX-T') at 100.000000 MHz
Linux version 2.4.0-test10 (root@ingram) (gcc version 2.96 20000925 (experimental)) #25 Mon Jan 15 15:52:44 CST 2001
free_bootmem(0x2b9000, 0x7d47000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=192.168.1.64
trap_init
Calibrating delay loop... 99.74 BogoMIPS
Memory: 125968k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
Found i82596 at 0xffd07000, IRQ 87
early initialization of device eth0 is deferred
Initializing Lasi PS/2-keyboard port at 0xffd08000...
Support for Lasi PS/2-psaux not yet available !
ccio found U2 GSC+ BC at 0xf5fbf000
superio: Probe
Could not find Superio IDE !
Could not find Superio USB!
Bah!
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
Lasi PS/2 transmit buffer timeout
Lasi PS/2 transmit buffer timeout
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
eth0: 82596 at 0xffd07000, 08 00 09 E8 83 2B IRQ 87.
82596.c $Revision: 1.14 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 86
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: Good, target data areas are dma coherent
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: SEAGATE   Model: ST11200N SUN1.05  Rev: 8358
  Type:   Direct-Access                      ANSI SCSI revision: 02
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 35
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
ncr53c720-0: restart (scsi reset).
scsi1 : ncr53c8xx - version 3.3b
  Vendor: SEAGATE   Model: ST32430W          Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 02
ncr53c720-0-<6,0>: tagged command queue depth set to 8
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
Detected scsi disk sdb at scsi1, channel 0, id 6, lun 0
SCSI device sda: 2059140 512-byte hdwr sectors (1054 MB)
Partition check:
 sda: sda1
ncr53c720-0-<6,0>: wide msgout: 1-2-3-1.
ncr53c720-0-<6,0>: wide msgin: 1-2-3-1.
ncr53c720-0-<6,0>: wide: wide=1 chg=0.
ncr53c720-0-<6,0>: sync_msgout: 1-3-1-19-8.
ncr53c720-0-<6,0>: sync msgin: 1-3-1-19-8.
ncr53c720-0-<6,0>: sync: per=25 scntl3=0x10 ofs=8 fak=0 chg=0.
ncr53c720-0-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdb: 4194685 512-byte hdwr sectors (2148 MB)
 sdb: unknown partition table
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
eth0: link ok.
Sending BOOTP requests..... OK
IP-Config: Got BOOTP answer from 192.168.1.64, my address is 192.168.1.76
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kmem_create: Forcing size word alignment - nfs_fh
Looking up port of RPC 100003/2 on 192.168.1.64
Looking up port of RPC 100005/2 on 192.168.1.64
VFS: Mounted root (nfs filesystem) readonly.
Warning: unable to open an initial console.



From - Thu Nov 08 21:15:06 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Booting C100
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On Mon, Jan 15, 2001 at 10:30:09PM +0100, Aleksandr Konstantinov wrote:
> Can anybody explain me how to get console NOT on serial link ?

activate CONFIG_STI and use `console=tty0' instead of `console=ttyS0'.
this should be done for you automatically by palo when you set CONFIG_STI.

-- 
Revolutions do not require corporate support.


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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C100 Boots! (Mostly)
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Greg,

I don't believe you have the latest palo version from cvs.  The latest palo
version will append a console=tty0 or console=ttyS0 to the Kernel
command line.

Try updating your palo, then try again.

- Ryan


Greg Ingram wrote:

> I tracked down the crash on my C100 to somewhere inside register_console()
> called from serial_console_init().  I tried a kernel without serial
> console support but that stopped generating output too early, so I tried
> just removing the register_console call() and now I get past mounting the
> root filesystem before losing console output.  A log follows.  The machine
> accepts telnet connections but telnet session won't start.  I get:
>
>         telnetd: getpty: permission denied
>
> I'm hoping that's just something to do with how I installed the root
> filesystem.  Maybe it hasn't been remounted as writable?  I'm so close to
> a shell!
>
> - Greg

[snip]

>
> Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=192.168.1.64
>

[snip]



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On Mon, Jan 15, 2001 at 11:33:28AM -0800, Stan Sieler wrote:
> The key, probably the most important thing in web page design, is to
> *NOT* override the user's font defaults.  Web pages with font sizes, colors, &
> styles are simply evil.  There are pages I can no longer read with Netscape,
> because the @#$%^ web designer went out of their way to choose a small
> font...and that's *real* small on a 1600x1200 display!  MSIE let's me 
> go to Tools/Internet Options/Accessibility and say:
> 
>    ignore font colors on page
>    ignore font size on page
> 
> ...which is simply wonderful.

Netscape has a simlar thing; however it ignore this preference when
rendering tables.  I went and checked out the mozilla classic codebase
once and saw exactly how to fix it, but they'd already forked mozilla
seamonkey at that point, so i didn't bother.

> Remember, the three most important things to consider when
> designing a web page are: content, content, and content.
> Look / feel / wow isn't in the top three!

i couldn't agree more.

-- 
Revolutions do not require corporate support.


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C100 Boots! (Mostly)
Date: Mon, 15 Jan 2001 15:37:46 -0700
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Cc: parisc-linux@thepuffingroup.com
To: Greg Ingram <ingram@symsys.com>
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In-Reply-To: Message from Greg Ingram <ingram@symsys.com> 
   of "Mon, 15 Jan 2001 16:11:19 CST." <Pine.LNX.4.21.0101151559150.23803-100000@maestro.symsys.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:9198


Greg Ingram writes...

> root filesystem before losing console output.  A log follows.  The machine
> accepts telnet connections but telnet session won't start.  I get:
> 
> 	telnetd: getpty: permission denied
> 
> I'm hoping that's just something to do with how I installed the root
> filesystem.  Maybe it hasn't been remounted as writable?  I'm so close to
> a shell! 

Yes, that is exactly the same error that I have seen when the root wasn't 
mounted rw. Until you fix your console problem you can probably add something 
like,

10.0.0.1:/tftpboot/nfsroot      /       nfs    defaults,errors=remount-ro

to /tftpboot/nfsroot/etc/fstab

replace with your IP/nfsroot path. That should let it remount rw after it's 
booted.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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Subject: Re: [parisc-linux] website
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Cc: Matthew Wilcox <matthew@wil.cx>, parisc-linux@thepuffingroup.com
To: Jane Vinet <jvinet@linuxcare.com>
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On Mon, Jan 15, 2001 at 10:20:16AM -0500, Jane Vinet wrote:
> Discussions between Linuxcare and Hewlett Packard have come to the
> conclusion that HP are satisfied with the site and we are going to post
> it the way it is now.

I see.  In that case, I shall not be contributing further to the website
in any way.  I believe it is technically incompetent and deeply flawed.
You gave the impression that problems would be fixed, but clearly this
is not the case.  I will not be fixing typos or incorrect information;
I will not be updating the todo list or contributing faq entries.

> >  * The text is too small.
> >  * It uses too many tables.
> 
> I feel these are personal preferences - however, I will see what can be
> done about the font

no they aren't.  see the other post i made in this thread showing how
the tables can be easily eliminated which will lead to less memory usage
and faster rendering time.  the font is not quite as unreadably small as
some sites, but it's unnecessarily small.

-- 
Revolutions do not require corporate support.


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To: Hugo van der Kooij <Hugo.van.der.Kooij@caiw.nl>
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Xref: news.gmane.org gmane.linux.ports.parisc:9200

On Sun, May 30, 1999 at 01:30:05AM +0200, Hugo van der Kooij wrote:
> Please guys. Don't send message to me if you send them to the list as
> well. I find 1 copy quite enough.

it's normal practice to do so on mailing lists.  it allows conversations
to happen much quicker when the listserv is slow (as vger is right now).
it's also the way that mailreaders work - reply to sender or reply to all
- changing that is a pain.  not to mention that you did the same thing :-)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Josiah Carlson <jcarlson@macalester.edu>
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Subject: Re: [parisc-linux] website
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> > Remember, the three most important things to consider when
> > designing a web page are: content, content, and content.
> > Look / feel / wow isn't in the top three!
> 
> i couldn't agree more.

So you've got a problem with the content?

I don't understand what the problem is.  The page works.
So it's generated by a script that adds in a bunch of extra stuff...so
what?  The font sizes and such are not changed (except in the
toolbar)...should be able to be viewed on netscape (and at least in the
later mozilla's and NS6, you can override the defaults). Sounds like
alot of complaining for nothing.

As well, if you're not happy with the content on the web page, write a
page up and post it for the good of the rest of us.

---
Josiah Carlson
jcarlson@macalester.edu


From - Thu Nov 08 21:15:07 2018
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
Date: Tue, 16 Jan 2001 10:07:45 +1100 (EST)
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>, gcc-patches@gcc.gnu.org,
        parisc-linux@puffin.external.hp.com
To: Jeffrey A Law <law@redhat.com>
Original-X-From: alan@linuxcare.com.au  Mon Jan 15 16:04:23 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:9202

On Mon, 15 Jan 2001, Jeffrey A Law wrote:

> First, if an ASM trashes a fixed register, then it is the ASM's responsibility
> to restore it.  So that part of this patch is wrong.

OK, that's fair enough.

> The rest of it looks pretty reasonable and can be installed.

There is possibly a small problem.  The test at the end of
hppa_expand_prologue:

  if (flag_pic && HARD_REGISTER_P (PIC_OFFSET_TABLE_SAVE_RTX))

might be wrong.  I tested HARD_REGISTER_P because we don't want to emit
the instruction as part of the prologue if PIC_OFFSET_TABLE_SAVE_RTX is
dead.  What happens if register pressure causes the pseudo to be allocated
a stack slot?

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Xref: news.gmane.org gmane.linux.ports.parisc:9203

On Mon, Jan 15, 2001 at 05:00:43PM -0600, Josiah Carlson wrote:
> I don't understand what the problem is.  The page works.

haven't you been reading my posts where i describe the problems with
the build system which are going to lead to the pages getting out
of sync?  Heck, they have _already_ gt out of sync.

> So it's generated by a script that adds in a bunch of extra stuff...so
> what?  The font sizes and such are not changed

yes they are.  go and look again.

> As well, if you're not happy with the content on the web page, write a
> page up and post it for the good of the rest of us.

er.  i have.  really, have you not been paying attention?

-- 
Revolutions do not require corporate support.


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
Date: Tue, 16 Jan 2001 10:17:52 +1100 (EST)
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Cc: law@redhat.com, gcc-patches@gcc.gnu.org,
        parisc-linux@puffin.external.hp.com
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
Original-X-From: alan@linuxcare.com.au  Mon Jan 15 16:14:25 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:9204

On Mon, 15 Jan 2001, John David Anglin wrote:

> The effect of these rules is that gp must be treated as a scratch register
> at a point of call but a procedure must preserve it from entry to exit.

Interestingly, gcc currently does not always preserve gp.

extern void foo (void);
int main (void) { foo(); return 0; }

compiled with -O gives

        std %r2,-16(%r30)
        ldo 128(%r30),%r30
        std %r3,-128(%r30)
        copy %r27,%r3
        b,l __main,%r2
        ldo -16(%r30),%r29
        copy %r3,%r27
        b,l foo,%r2
        ldo -16(%r30),%r29
        ldi 0,%r28
        ldd -144(%r30),%r2
        bve (%r2)
        ldd,mb -128(%r30),%r3

and gp is not restored after the call to foo.

-- 
Linuxcare.  Support for the Revolution.


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] binutils
Date: Tue, 16 Jan 2001 10:24:28 +1100 (EST)
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To: parisc-linux@puffin.external.hp.com
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As of yesterday, the official binutils sources have all our patches, so
the 2.11.0 release or sourceware CVS can be used for hppa*-linux.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Newsgroups: gmane.linux.ports.parisc
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To: Greg Ingram <ingram@symsys.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:9206

Greg Ingram wrote:
> Okay, I grabbed the cross-compiler and various sources and managed to
> build a booting image.  Woohoo!

Good work!

> I also tried the lifimage you just posted
> to the FTP site.  Both kernels died at GSC detection because it didn't
> know the address f5fbf000.  I made this little change to ccio-dma.c:
> 
> --- arch/parisc/kernel/ccio-dma.c.orig  Mon Jan 15 12:40:05 2001
> +++ arch/parisc/kernel/ccio-dma.c       Mon Jan 15 13:05:01 2001
> @@ -1174,6 +1174,7 @@
>  ** that can't be detected by PA/EISA/PCI bus walks.
>  */
>         switch((long) d->hpa) {
> +       case 0xf5fbf000L:       /* C1O0 (wild guess!) */
>         case 0xf7fbf000L:       /* C110 IOA0 LBC (aka GSC port) */
>         case 0xf3fbf000L:       /* C110 IOA0 LBC (aka GSC port) */
>                 /* ccio_hpa same as C200 IOA0 */                             

As Ryan noted, this is a hack. We need a real PA bus walk - not
just depending on the devices PDC tells us about.
     

> Data access rights fault in kernel: Code=26 regs=c7f9c840 (Addr=0000000c)

Looks like a null ptr dereference.

>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001100000000000001011
> r0-3     00000000 c02b2580 c018e784 c02c2c88
...
> IASQ: 00000000 00000000 IAOQ: c010c8fc c010c900

IOAQ is the current PC
GR02 is the return ptr - ie caller address + 8

See build-tools/a.c
If you look up the symbols of those, very likely you'll
find the code that doesn't like your C100.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: [parisc-linux] website
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In-Reply-To: <3A63811B3D8.D2B3JCARLSON@smtp.macalester.edu> from "Josiah Carlson" at Jan 15, 2001 05:00:43 PM
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Xref: news.gmane.org gmane.linux.ports.parisc:9207

Josiah (what's wrong with painting my car myself, with house paint) Carlson 
says:

> what?  The font sizes and such are not changed (except in the
> toolbar)...should be able to be viewed on netscape (and at least in the

Oh?  Try www.sieler.com, then www.linuxcare.com.  The linuxcare page
specifies font size everywhere...not just the toolbar.

Matthew did linuxcare a favor ... for all that they might not care ...
by pointing out that the page has a number of problems.  Font size
*is* one of those problems.  On my 21" monitor, at 1600x1200, I find
their font just a bit too small to read.  (Better than some brain-dead
pages, like www.altavista.com!)

> later mozilla's and NS6, you can override the defaults). Sounds like
> alot of complaining for nothing.

Josiah...if people don't point out the problems, how will they *ever*
find out about them? 

Hmmm...The gentleman protests too much, methinks.
[modified Hamlet, see http://www.allshakespeare.com/plays/hamlet/3-2.shtml#protest]

BTW, you *DO* want to point out to your *own* site's webmaster that
he/she is making the same bad mistake :)

www.macalester.edu:

    ...
    <font face="Verdana, Arial, Helvetica, sans-serif" size=-1>

    Macalester College is a private undergraduate liberal arts college which
    emphasizes academic excellence in the context of internationalism,
    ...

Note that evil "size=-1"!  (and a few "size=-2" as well)

BTW, that home page is better than many...
CSEE HTML Validator version 4.5 only found four errors on it.  
See: http://www.htmlvalidator.com/

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com        


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
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To: Jeffrey A Law <law@redhat.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:9208

On Tue, 16 Jan 2001, I wrote:

> There is possibly a small problem.  The test at the end of
> hppa_expand_prologue:

Here is an updated patch that cures this, and doesn't restore r27 before
calls.

	* config/pa/pa.h (PIC_OFFSET_TABLE_REGNUM_SAVED): Remove.
	(machine_function): Define.
	(PIC_OFFSET_TABLE_SAVE_RTX) : Define.
	(INIT_EXPANDERS): Define.
	* config/pa/pa.c (pa_init_machine_status, pa_free_machine_status,
	pa_init_expanders): New functions.
	(hppa_expand_prologue): Use PIC_OFFSET_TABLE_SAVE_RTX instead of
	PIC_OFFSET_TABLE_REGNUM_SAVED.
	* config/pa/pa.md: Use PIC_OFFSET_TABLE_SAVE_RTX instead of
	PIC_OFFSET_TABLE_REGNUM_SAVED throughout.
	* config/pa/pa32-regs.h (CONDITIONAL_REGISTER_USAGE): Remove
	references to PIC_OFFSET_TABLE_REGNUM_SAVED.
	* config/pa/pa64-regs.h (CONDITIONAL_REGISTER_USAGE): Likewise.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.

diff -urp -xCVS egcs/gcc/config/pa/pa.c newegcs/gcc/config/pa/pa.c
--- egcs/gcc/config/pa/pa.c	Thu Jan  4 15:22:58 2001
+++ newegcs/gcc/config/pa/pa.c	Tue Jan 16 10:45:25 2001
@@ -2918,6 +2918,40 @@ output_function_prologue (file, size)
   remove_useless_addtr_insns (get_insns (), 0);
 }
 
+/* Functions to initialize pic_offset_table_save_rtx.
+   These will be called, via pointer variables,
+   from push_function_context and pop_function_context.  */
+
+static void
+pa_init_machine_status (p)
+     struct function *p;
+{
+  p->machine = (machine_function *) xmalloc (sizeof (machine_function));
+
+  p->machine->pic_offset_table_save_rtx = gen_reg_rtx (Pmode);
+}
+
+static void
+pa_free_machine_status (p)
+     struct function *p;
+{
+  if (p->machine == NULL)
+    return;
+
+  free (p->machine);
+  p->machine = NULL;
+}
+
+/* Do anything needed before RTL is emitted for each function.  */
+
+void
+pa_init_expanders ()
+{
+  /* Arrange to save and restore machine status around nested functions.  */
+  init_machine_status = pa_init_machine_status;
+  free_machine_status = pa_free_machine_status;
+}
+
 void
 hppa_expand_prologue()
 {
@@ -3153,19 +3187,17 @@ hppa_expand_prologue()
      made incorrect assumptions about using global variables to hold
      per-function rtl code generated in the backend.
 
-     So instead, we copy the PIC register into a reserved callee saved
-     register in the prologue.  Then after each call we reload the PIC
-     register from the callee saved register.  We also reload the PIC
-     register from the callee saved register in the epilogue ensure the
-     PIC register is valid at function exit.
-
-     This may (depending on the exact characteristics of the function)
-     even be more efficient. 
-
-     Avoid this if the callee saved register wasn't used (these are
-     leaf functions).  */
-  if (flag_pic && regs_ever_live[PIC_OFFSET_TABLE_REGNUM_SAVED])
-    emit_move_insn (gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED),
+     So instead, we copy the PIC register into a callee saved register
+     in the prologue.  Then after each call we reload the PIC register
+     from the callee saved register.
+
+     Avoid doing this if the register isn't used (eg. leaf functions)
+     as it's an error to delete an instruction from the prologue.  */
+
+  if (flag_pic
+      && (GET_CODE (PIC_OFFSET_TABLE_SAVE_RTX) != REG
+	  || HARD_REGISTER_P (PIC_OFFSET_TABLE_SAVE_RTX)))
+    emit_move_insn (PIC_OFFSET_TABLE_SAVE_RTX,
 		    gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM));
 }
 
diff -urp -xCVS egcs/gcc/config/pa/pa.h newegcs/gcc/config/pa/pa.h
--- egcs/gcc/config/pa/pa.h	Thu Jan  4 15:22:58 2001
+++ newegcs/gcc/config/pa/pa.h	Mon Jan 15 20:54:01 2001
@@ -70,6 +70,14 @@ enum architecture_type
   ARCHITECTURE_20
 };
 
+struct rtx_def;
+/* A C structure for machine-specific, per-function data.
+   This is added to the cfun structure.  */
+typedef struct machine_function
+{
+  struct rtx_def *pic_offset_table_save_rtx;
+} machine_function;
+
 /* For -march= option.  */
 extern const char *pa_arch_string;
 extern enum architecture_type pa_arch;
@@ -493,8 +501,8 @@ extern int target_flags;
 #define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED 1
 
 /* Register into which we save the PIC_OFFEST_TABLE_REGNUM so that it
-   can be restore across function calls.  */
-#define PIC_OFFSET_TABLE_REGNUM_SAVED 4
+   can be restored across function calls.  */
+#define PIC_OFFSET_TABLE_SAVE_RTX (cfun->machine->pic_offset_table_save_rtx)
 
 #define DEFAULT_PCC_STRUCT_RETURN 0
 
@@ -854,6 +862,10 @@ extern enum cmp_type hppa_branch_type;
 	     DELTA, target_name, DELTA); \
   fprintf (FILE, "\n\t.EXIT\n\t.PROCEND\n"); \
 }
+
+/* Initialize data used by insn expanders.  This is called from
+   init_emit, once for each function, before code is generated. */
+#define INIT_EXPANDERS pa_init_expanders ()
 
 /* This macro generates the assembly code for function entry.
    FILE is a stdio stream to output the code to.
diff -urp -xCVS egcs/gcc/config/pa/pa.md newegcs/gcc/config/pa/pa.md
--- egcs/gcc/config/pa/pa.md	Mon Jan  8 22:47:00 2001
+++ newegcs/gcc/config/pa/pa.md	Tue Jan 16 10:45:58 2001
@@ -5735,18 +5735,12 @@
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
-	       gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
       if (TARGET_64BIT)
 	use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_rtx);
 
       /* After each call we must restore the PIC register, even if it
-	 doesn't appear to be used.
-
-         This will set regs_ever_live for the callee saved register we
-	 stored the PIC register in.  */
-      emit_move_insn (pic_offset_table_rtx,
-		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
+	 doesn't appear to be used.  */
+      emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
     }
   DONE;
 }")
@@ -5915,18 +5909,12 @@
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
-	       gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
       if (TARGET_64BIT)
 	use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_rtx);
 
       /* After each call we must restore the PIC register, even if it
-	 doesn't appear to be used.
-
-         This will set regs_ever_live for the callee saved register we
-	 stored the PIC register in.  */
-      emit_move_insn (pic_offset_table_rtx,
-		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
+	 doesn't appear to be used.  */
+      emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
     }
   DONE;
 }")
@@ -6096,16 +6084,10 @@
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
-	       gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
 
       /* After each call we must restore the PIC register, even if it
-	 doesn't appear to be used.
-
-         This will set regs_ever_live for the callee saved register we
-	 stored the PIC register in.  */
-      emit_move_insn (pic_offset_table_rtx,
-		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
+	 doesn't appear to be used.  */
+      emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
     }
   DONE;
 }")
@@ -6158,16 +6140,10 @@
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
-	       gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
 
       /* After each call we must restore the PIC register, even if it
-	 doesn't appear to be used.
-
-         This will set regs_ever_live for the callee saved register we
-	 stored the PIC register in.  */
-      emit_move_insn (pic_offset_table_rtx,
-		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
+	 doesn't appear to be used.  */
+      emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
     }
   DONE;
 }")
diff -urp -xCVS egcs/gcc/config/pa/pa32-regs.h newegcs/gcc/config/pa/pa32-regs.h
--- egcs/gcc/config/pa/pa32-regs.h	Thu Jan 11 16:10:48 2001
+++ newegcs/gcc/config/pa/pa32-regs.h	Mon Jan 15 18:22:39 2001
@@ -110,11 +110,7 @@
 	fixed_regs[i] = call_used_regs[i] = 1; 	\
     }						\
   if (flag_pic)					\
-    {						\
-      fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
-      fixed_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
-      call_used_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
-    }						\
+    fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
 }
 
 /* Allocate the call used registers first.  This should minimize
diff -urp -xCVS egcs/gcc/config/pa/pa64-regs.h newegcs/gcc/config/pa/pa64-regs.h
--- egcs/gcc/config/pa/pa64-regs.h	Thu Jan 11 16:10:48 2001
+++ newegcs/gcc/config/pa/pa64-regs.h	Mon Jan 15 18:22:40 2001
@@ -109,11 +109,7 @@ Boston, MA 02111-1307, USA.  */
 	fixed_regs[i] = call_used_regs[i] = 1; 	\
     }						\
   if (flag_pic)					\
-    {						\
-      fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
-      fixed_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
-      call_used_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
-    }						\
+    fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
 }
 
 /* Allocate the call used registers first.  This should minimize


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From: Josiah Carlson <jcarlson@macalester.edu>
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Subject: Re: [parisc-linux] website
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Xref: news.gmane.org gmane.linux.ports.parisc:9209

Matthew Wilxox,

I've been trying to look at the issues you've brought up, and figure out
some way that someone can fix them.  Here are the problems that I've
been able to come up with from the emails:

1. Font sizes and the resulting readibility on hi res screens,
particlarly on netscape browsers.
2. Problem with the memory usage of the tables, and the rendering speed,
particularly on netscape browsers.
3. Build system as it relates to the the way the pages are
updated...causing them to get out of sync.
4. The fact that parisc-linux.org is overseen by the HP corporation, and
that they are unwilling to change the layout and such of the web page.

Problems 1 and 2 both seem to stem from the way the Netscape browser
handles pages.  Yes, the over-use of tables is not necessary and causes
loading issues for people on saturated connections who also happen to be
using netscape 4.x.  And I also hate the over-use of tables (I once
viewed a web page that had 4 images and maybe a paragraph or so of
actual text, but was filled with 25k of table formatting crap that could
have been removed with a <center> tag and a few line breaks).  But they
aren't embedding hundreds of tables within themselves, I looked at the
html in your email.  I agree, the three tables didn't need to be used,
but then again, the designers of the pages probably aren't using a text
editor to set up a web page, I wouldn't doubt if they are using some
sort of gui editor...which in my experience with them, produces too much
unneeded bullshit.
I'm guessing with the amount of stuff they've got to set up, they lack
the time to hand code everything...that is much of the same reason why
so many pages have so many tables.  Not everyone has the time to hand
code every page, but then again, if some section of code is going to go
into every web page, it should be tight.  Though we've got to remember
that we're dealing with a corporation, with a structure, with
supervisors.  If there's one thing that I've learned from working at any
workplace, it's that supervisors sometimes know less than a 2 year old
and sometimes are twice as stubborn.  If they're using some sort of
commercial web development tool, I would doubt if the supervisor cares
who did what, "If it wasn't produced by the package, it's not going in."
(quote from a supervisor I had, and this also being the response to
problem 4).
What really needs to happen to fix these pages, is not for you to leave
because you're unhappy with the future pages, but for the person(s) who
is(are) actually developing the pages to be able to be contacted, and
take constructive feedback, and actually be able to do something about
it (where's webmaster@parisc-linux.org?).

We can fix the font sizes and such though.  In the netscape preferences
(on 4.x, 6, and mozilla) have options for font size and style overrides
(Edit->Preferences->Appearance->Fonts). This is a personal thing, a
seriously personal thing, but easily fixed on all current browsers (IE
4.0+, NS4.5+, 6 and mozilla (don't know the original milestone this
started working on, but I've got 11, 13 and 17 if anyone wants to look).

Memory usage because of tables...I really can't help that, and unless
someone breaks into the mozilla source code and tightens it up a tad...I
don't think it's ever going to be efficient (though I can't notice a
difference in IE...but then again, IE never had the problems with tables
that NS 4.x had), though at least mozilla/6 renders as it receives
information, quite a step up from the 4.x releases.

Build system and page updates...ouch.  Yeah, that's a problem, though I
don't have a solution. *frown*

In response to your previous email:
No, I haven't read them, I must've missed them.  But yes, it is a
problem...but I was attempting to refer to the parts that non-developers
see, the faq, the start page, etc.  Though I can't change the build
system, not only am I not privy to the code, but I doubt that HP would
accept any changes if I had any. (more on that later)

The content comment...I actually went surfing around the page and
noticed your name here and there...funny, I never paid it attention
before.  My comment was to address everyone.  Let us say for example
that...I've got a C110 (which I happen to), and I've been having
problems getting it working (which I have, but the current comments on
the C100 are helping).  Currently there is not a whole lot of info on
getting said machines running on the main site.  If I ever get my C110
running (like the 712's and B160L's), I have to document the steps
required because someone in the future may have to do it again where I'm
at, and it could also be posted to the parisc-linux.org site for other
people. Using that as an example, anyone who'se had problems getting
things set up should document and get the solutions posted to the site
under the information for that particular machine.  Thank you for
posting, anything that people can add to help is all that much better
for the new guy (which I still am).

(in response to Stan Stieler) And about "my site's webmaster"...well,
that's not my site. It's my school's site, for I am merely an undergrad.
I do know that they use Dreamweaver to write the pages, which gives a
reason for the use of CSS, and over-use of tables on every page that is
school written. But that's their thing, and it's also a corporation of
sorts.  I know the guys who are doing work study making the pages...and
they would all prefer to do everything with a few scripts and some
hand-coded html...but the supervisors only know dreamweaver...so that's
all they get.  I looked at stieler.com and have been to hp.com quite
often, and while I agree that content should be the absolute desire,
content with a poor way of accessing said content is nearly as bad as
not having any.  Hp's site has alot of useful information...but I've
spent hours looking for what I need (same with intel's site).  Your site
doesn't have any ambiguity, but it also does not have the insane amounts
of information that the HP site has, nor is it nearly as visually
interesting0.
I'm going to use slashdot.org as an example here.  It has plenty of
information, fairly un-ambiguous interface, kind of visually interesting,
but also happens to have many tables.  Tables aren't necessarily bad
when used properly (not to say that slashdot.org uses them properly, but
they are used for the desired formatting, and not much else would
accomplish what they have).
The trick is to remember to seperate the different levels of web design
in a corporate style environment:
Content (what's there)
Interface (how do they get to it)
Back end (how it's stored/generated)
As a geek news source, slashdot.org has got them all down pretty well,
leaving only a little to be desired in the way of the amount of html
they use (and a bit of FUD on occasion).
hp.com lacks interface, but has excellent content and one hell of a back
end to be able to handle all that info.

So yeah, that's my take,
 - Josiah


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Josiah Carlson wrote:
...
> 4. The fact that parisc-linux.org is overseen by the HP corporation, and
> that they are unwilling to change the layout and such of the web page.

Wrong on two counts: HP does not run the web site. AFAIK, HP helped
fund the parisc-linux site developement and approved it's current
layout/use of HP logo. No one said anything about future developement.
This issue is still under discussion and Mathew's input has been heard.

> Though we've got to remember
> that we're dealing with a corporation, with a structure, with
> supervisors.

Who are just people.
Some need to learn new things they don't yet know.

> If there's one thing that I've learned from working at any
> workplace, it's that supervisors sometimes know less than a 2 year old
> and sometimes are twice as stubborn.

Funny. None of my supervisors have ever fit that description.
Maybe I'm just lucky.

> not only am I not privy to the code,

Wrong again.
Source is visible at http://puffin.external.hp.com/cgi-bin/cvsview
or through CVS. Just like the linux kernel.

> but I doubt that HP would
> accept any changes if I had any. (more on that later)

You are right - HP won't. Mostly because HP doesn't "own" it.
Anyone with write access to the CVS repository can change it.
Only about 1/5th of the people with such write access are HP
employees.

> Currently there is not a whole lot of info on
> getting said machines running on the main site.

1) It's because owners of said machines haven't *written* a web page
   (or FAQ) specific to each platform.
2) Such a page would fairly quickly be stale.
   The long term goal is to have one process/kernel for all machines.
   (64- vs 32-bit kernels is the only issue that won't go away.)

> I have to document the steps
> required because someone in the future may have to do it again where I'm
> at, and it could also be posted to the parisc-linux.org site for other
> people.

Exactly. Post it here and people can find it by searching the
mail archive. (That's probably another FAQ, Alex?).

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Subject: Re: [parisc-linux] Ready to go!
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On Sun, 30 May 1999, Matthew Wilcox wrote:

> On Sun, May 30, 1999 at 01:30:05AM +0200, Hugo van der Kooij wrote:
> > Please guys. Don't send message to me if you send them to the list as
> > well. I find 1 copy quite enough.
> 
> it's normal practice to do so on mailing lists.  it allows conversations
> to happen much quicker when the listserv is slow (as vger is right now).
> it's also the way that mailreaders work - reply to sender or reply to all
> - changing that is a pain.  not to mention that you did the same thing :-)

It isn't normal practice! It may be your practice. This list behaves
normaly which is quite unlike the overloaded and underpowered system of
vger.

Hugo.

-- 
Hugo van der Kooij; Oranje Nassaustraat 16; 3155 VJ  Maasland
hvdkooij@caiw.nl		 http://www.caiw.nl/~hvdkooij/
--------------------------------------------------------------
Use of any of my email addresses for unsollicited (commercial)
    email is a clear intrusion of my privacy and illegal!


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Xref: news.gmane.org gmane.linux.ports.parisc:9212

On Tue, Jan 16, 2001 at 12:20:19PM +1100, Alan Modra wrote:
> 	* config/pa/pa.c (pa_init_machine_status, pa_free_machine_status,
> 	pa_init_expanders): New functions.

You need a mark_machine_status function.  It is also much better
to set the global variables once in override_options than for
every function in init_expanders.


r~


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> Wrong on two counts: HP does not run the web site. AFAIK, HP helped
> fund the parisc-linux site developement and approved it's current
> layout/use of HP logo. No one said anything about future developement.
> This issue is still under discussion and Mathew's input has been heard.

I did not know that. Thank you for putting me straight.

> Who are just people.
> Some need to learn new things they don't yet know.
> Funny. None of my supervisors have ever fit that description.
> Maybe I'm just lucky.

*nod* They need to learn, but some aren't willing.  I don't know the
structure at HP, but most any job I've been at...yeah, had a couple good
ones, but those are rare, and you are quite lucky.  Though with the
newfound knowledge that it's not overseen by a large corporation, let us
get with the page alterations already *wink*.

> Wrong again.
> Source is visible at http://puffin.external.hp.com/cgi-bin/cvsview
> or through CVS. Just like the linux kernel.
> You are right - HP won't. Mostly because HP doesn't "own" it.
> Anyone with write access to the CVS repository can change it.
> Only about 1/5th of the people with such write access are HP
> employees.

I must have missed that link as well.  I did not know that just about
everything (web page included) were easily modifyable...but if it's so
easy, why haven't the changes been made?  Why is Matthew so pissed off? 
(I admit that I flamed in response, and I'm sorry...at the time I was
pissed because I didn't have lab access to my hp machines because of the
holiday.  Since then I've had my nap and dinner.)

> 1) It's because owners of said machines haven't *written* a web page
>    (or FAQ) specific to each platform.
> 2) Such a page would fairly quickly be stale.
>    The long term goal is to have one process/kernel for all machines.
>    (64- vs 32-bit kernels is the only issue that won't go away.)

MMM.  Good point, until that happens however...I'm of the belief that
anyone that has problems getting things working should document what
they did to get their machine working (if they ever did).  Regardless of
how out of date it is...you never know how helpful it could be.  For
example...the install directions should include the serial console
tidbit.  Everyone here knows about it...but not everyone does when they
go to first boot off the image (as I did, and subsequently emailed Paul
Bame).  But regardless of the state of the port...sometimes software
just doesn't like to run on multiple platforms (any *nix distro on a
Sony vaio will have problems with the multimedia stuff built into
them...because of the machine...like those particular HP servers that
just don't work). It's good to have documentation. It's part of what
seperates good software from bad.

> Exactly. Post it here and people can find it by searching the
> mail archive. (That's probably another FAQ, Alex?).

When I get done, I most certainly will.

> not really...let's say you've got your system and/or Netscape (and/or
> MSIE) default fonts the size that you'd like (for readability).
> Along comes a page that says: hey...I don't care what your default is,
> I want "size=-1" or "size=-2" ... i.e., "I want a font smaller than
> you like".

*nod* Hrm...that's messed up.  I've never done such a thing.  I've
always done the size=+1 to indicate bold (because bold just isn't enough
sometimes)...but to make the stuff smaller...that's just plain bad
design (unless you want some fine print at the bottom, then it's just
plain bad mojo).  If people can't see what you want them to, what good
is it.  Though I mistakenly thought that the overrides overrides _all_
font settings in the page. For it not to, when you specifically tell it
to...I don't know, maybe another setting for relative font sizing in the
browsers is in order.

>Me too...particularly the bad way HP uses them...they violate the HTML
>standard, and the result is (often) that Netscape renders them okay,
>but refuses to search for text in them (if you do control-F).

*nod* Java generated pages do that to me on occasion to.

>You're missing something...the pages that Matthew (and others) have 
>complained about are going out of their way to say:
>   hey, we know better than the owner of the computer what font sizes
>   are readable on his/her PC!

I was missing that yes.  What should really happen then is that sites
stop doing that...but until they do...maybe what some people need is a
web site post-processor proxy that gets rid of the size=-* tags.

>I only used that as an example of a page that doesn't try to control
>the font size, so you could do a quick A/B comparison.
>BTW, that was a nice posting you did, thanks!
With the previous 3 or 4 responses above...yeah, I got that now. 
Originally I thought you were trying to tout your 31337 html coding
abilities...then I got there, and noticed the white *wink*.  I used to
go to a site called Silicon Toad's BBS (back in 94, mosaic was the
shit), and he hand coded everything.  That was an impressive site in the
2.x days when the lucky people had 19.2.  Pretty and less than 10k.
*nastalga mode off*
And, um, you're welcome?

 - Josiah


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Alan Modra said:
> As of yesterday, the official binutils sources have all our patches, so
> the 2.11.0 release or sourceware CVS can be used for hppa*-linux.

Great news!

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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Hi
I'm Rino and I've an HP735
Were can I download and what to install linux on my machine? 
regards



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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
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Cc: Jeffrey A Law <law@redhat.com>,
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On Mon, 15 Jan 2001, Richard Henderson wrote:

> On Tue, Jan 16, 2001 at 12:20:19PM +1100, Alan Modra wrote:
> > 	* config/pa/pa.c (pa_init_machine_status, pa_free_machine_status,
> > 	pa_init_expanders): New functions.
> 
> You need a mark_machine_status function.  It is also much better
> to set the global variables once in override_options than for
> every function in init_expanders.

OK, here we go.

gcc/ChangeLog
	* config/pa/pa.h (PIC_OFFSET_TABLE_REGNUM_SAVED): Remove.
	(machine_function): Define.
	(PIC_OFFSET_TABLE_SAVE_RTX) : Define.
	* config/pa/pa.c (pa_init_machine_status, pa_mark_machine_status,
	pa_free_machine_status): New functions.
	(override_options): Set {init,mark,free}_machine_status to above.
	(hppa_expand_prologue): Use PIC_OFFSET_TABLE_SAVE_RTX instead of
	PIC_OFFSET_TABLE_REGNUM_SAVED.
	* config/pa/pa.md: Use PIC_OFFSET_TABLE_SAVE_RTX instead of
	PIC_OFFSET_TABLE_REGNUM_SAVED throughout.
	* config/pa/pa32-regs.h (CONDITIONAL_REGISTER_USAGE): Remove
	references to PIC_OFFSET_TABLE_REGNUM_SAVED.
	* config/pa/pa64-regs.h (CONDITIONAL_REGISTER_USAGE): Likewise.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.

diff -urp -xCVS egcs/gcc/config/pa/pa.c newegcs/gcc/config/pa/pa.c
--- egcs/gcc/config/pa/pa.c	Thu Jan  4 15:22:58 2001
+++ newegcs/gcc/config/pa/pa.c	Tue Jan 16 18:12:37 2001
@@ -1,5 +1,5 @@
 /* Subroutines for insn-output.c for HPPA.
-   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
+   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
    Free Software Foundation, Inc.
    Contributed by Tim Moore (moore@cs.utah.edu), based on sparc.c
 
@@ -43,6 +43,9 @@ Boston, MA 02111-1307, USA.  */
 #include "recog.h"
 #include "tm_p.h"
 
+static void pa_init_machine_status PARAMS ((struct function *));
+static void pa_mark_machine_status PARAMS ((struct function *));
+static void pa_free_machine_status PARAMS ((struct function *));
 static void pa_combine_instructions			PARAMS ((rtx));
 static int pa_can_combine_p	PARAMS ((rtx, rtx, rtx, int, rtx, rtx, rtx));
 static int forward_branch_p				PARAMS ((rtx));
@@ -186,6 +189,43 @@ override_options ()
 
   /* Register global variables with the garbage collector.  */
   pa_add_gc_roots ();
+
+  /* Arrange to save and restore machine status around nested functions.  */
+  init_machine_status = pa_init_machine_status;
+  mark_machine_status = pa_mark_machine_status;
+  free_machine_status = pa_free_machine_status;
+}
+
+/* Functions to initialize pic_offset_table_save_rtx.
+   These will be called, via pointer variables,
+   from push_function_context and pop_function_context.  */
+
+static void
+pa_init_machine_status (p)
+     struct function *p;
+{
+  p->machine = (machine_function *) xmalloc (sizeof (machine_function));
+
+  p->machine->pic_offset_table_save_rtx = gen_reg_rtx (Pmode);
+}
+
+static void
+pa_mark_machine_status (p)
+     struct function *p;
+{
+  if (p->machine)
+    ggc_mark_rtx (p->machine->pic_offset_table_save_rtx);
+}
+
+static void
+pa_free_machine_status (p)
+     struct function *p;
+{
+  if (p->machine == NULL)
+    return;
+
+  free (p->machine);
+  p->machine = NULL;
 }
 
 
@@ -2653,7 +2693,7 @@ remove_useless_addtr_insns (insns, check
 
 }
 
-/* You may have trouble believing this, but this is the HP-PA stack
+/* You may have trouble believing this, but this is the 32 bit HP-PA stack
    layout.  Wow.
 
    Offset		Contents
@@ -3153,19 +3193,17 @@ hppa_expand_prologue()
      made incorrect assumptions about using global variables to hold
      per-function rtl code generated in the backend.
 
-     So instead, we copy the PIC register into a reserved callee saved
-     register in the prologue.  Then after each call we reload the PIC
-     register from the callee saved register.  We also reload the PIC
-     register from the callee saved register in the epilogue ensure the
-     PIC register is valid at function exit.
-
-     This may (depending on the exact characteristics of the function)
-     even be more efficient. 
-
-     Avoid this if the callee saved register wasn't used (these are
-     leaf functions).  */
-  if (flag_pic && regs_ever_live[PIC_OFFSET_TABLE_REGNUM_SAVED])
-    emit_move_insn (gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED),
+     So instead, we copy the PIC register into a callee saved register
+     in the prologue.  Then after each call we reload the PIC register
+     from the callee saved register.
+
+     Avoid doing this if the register isn't used (eg. leaf functions)
+     as it's an error to delete an instruction from the prologue.  */
+
+  if (flag_pic
+      && (GET_CODE (PIC_OFFSET_TABLE_SAVE_RTX) != REG
+	  || HARD_REGISTER_P (PIC_OFFSET_TABLE_SAVE_RTX)))
+    emit_move_insn (PIC_OFFSET_TABLE_SAVE_RTX,
 		    gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM));
 }
 
diff -urp -xCVS egcs/gcc/config/pa/pa.h newegcs/gcc/config/pa/pa.h
--- egcs/gcc/config/pa/pa.h	Thu Jan  4 15:22:58 2001
+++ newegcs/gcc/config/pa/pa.h	Tue Jan 16 18:02:14 2001
@@ -70,6 +70,14 @@ enum architecture_type
   ARCHITECTURE_20
 };
 
+struct rtx_def;
+/* A C structure for machine-specific, per-function data.
+   This is added to the cfun structure.  */
+typedef struct machine_function
+{
+  struct rtx_def *pic_offset_table_save_rtx;
+} machine_function;
+
 /* For -march= option.  */
 extern const char *pa_arch_string;
 extern enum architecture_type pa_arch;
@@ -493,8 +501,8 @@ extern int target_flags;
 #define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED 1
 
 /* Register into which we save the PIC_OFFEST_TABLE_REGNUM so that it
-   can be restore across function calls.  */
-#define PIC_OFFSET_TABLE_REGNUM_SAVED 4
+   can be restored across function calls.  */
+#define PIC_OFFSET_TABLE_SAVE_RTX (cfun->machine->pic_offset_table_save_rtx)
 
 #define DEFAULT_PCC_STRUCT_RETURN 0
 
diff -urp -xCVS egcs/gcc/config/pa/pa.md newegcs/gcc/config/pa/pa.md
--- egcs/gcc/config/pa/pa.md	Mon Jan  8 22:47:00 2001
+++ newegcs/gcc/config/pa/pa.md	Tue Jan 16 10:45:58 2001
@@ -5735,18 +5735,12 @@
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
-	       gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
       if (TARGET_64BIT)
 	use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_rtx);
 
       /* After each call we must restore the PIC register, even if it
-	 doesn't appear to be used.
-
-         This will set regs_ever_live for the callee saved register we
-	 stored the PIC register in.  */
-      emit_move_insn (pic_offset_table_rtx,
-		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
+	 doesn't appear to be used.  */
+      emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
     }
   DONE;
 }")
@@ -5915,18 +5909,12 @@
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
-	       gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
       if (TARGET_64BIT)
 	use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_rtx);
 
       /* After each call we must restore the PIC register, even if it
-	 doesn't appear to be used.
-
-         This will set regs_ever_live for the callee saved register we
-	 stored the PIC register in.  */
-      emit_move_insn (pic_offset_table_rtx,
-		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
+	 doesn't appear to be used.  */
+      emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
     }
   DONE;
 }")
@@ -6096,16 +6084,10 @@
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
-	       gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
 
       /* After each call we must restore the PIC register, even if it
-	 doesn't appear to be used.
-
-         This will set regs_ever_live for the callee saved register we
-	 stored the PIC register in.  */
-      emit_move_insn (pic_offset_table_rtx,
-		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
+	 doesn't appear to be used.  */
+      emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
     }
   DONE;
 }")
@@ -6158,16 +6140,10 @@
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
-	       gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
 
       /* After each call we must restore the PIC register, even if it
-	 doesn't appear to be used.
-
-         This will set regs_ever_live for the callee saved register we
-	 stored the PIC register in.  */
-      emit_move_insn (pic_offset_table_rtx,
-		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM_SAVED));
+	 doesn't appear to be used.  */
+      emit_move_insn (pic_offset_table_rtx, PIC_OFFSET_TABLE_SAVE_RTX);
     }
   DONE;
 }")
diff -urp -xCVS egcs/gcc/config/pa/pa32-regs.h newegcs/gcc/config/pa/pa32-regs.h
--- egcs/gcc/config/pa/pa32-regs.h	Thu Jan 11 16:10:48 2001
+++ newegcs/gcc/config/pa/pa32-regs.h	Mon Jan 15 18:22:39 2001
@@ -110,11 +110,7 @@
 	fixed_regs[i] = call_used_regs[i] = 1; 	\
     }						\
   if (flag_pic)					\
-    {						\
-      fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
-      fixed_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
-      call_used_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
-    }						\
+    fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
 }
 
 /* Allocate the call used registers first.  This should minimize
diff -urp -xCVS egcs/gcc/config/pa/pa64-regs.h newegcs/gcc/config/pa/pa64-regs.h
--- egcs/gcc/config/pa/pa64-regs.h	Thu Jan 11 16:10:48 2001
+++ newegcs/gcc/config/pa/pa64-regs.h	Mon Jan 15 18:22:40 2001
@@ -109,11 +109,7 @@ Boston, MA 02111-1307, USA.  */
 	fixed_regs[i] = call_used_regs[i] = 1; 	\
     }						\
   if (flag_pic)					\
-    {						\
-      fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
-      fixed_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
-      call_used_regs[PIC_OFFSET_TABLE_REGNUM_SAVED] = 1;\
-    }						\
+    fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;	\
 }
 
 /* Allocate the call used registers first.  This should minimize



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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Build hppa unwind info for more than .text
Date: Wed, 17 Jan 2001 00:02:07 +1100 (EST)
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Cc: parisc-linux@puffin.external.hp.com
To: binutils@sourceware.cygnus.com
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We were missing lots of unwind info, especially when using
-ffunction-sections, which confuses gdb.

gas/ChangeLog
	* config/tc-hppa.c (pa_build_unwind_subspace): Build unwind
	depending on section flags, not just for .text.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.

Index: gas/config/tc-hppa.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-hppa.c,v
retrieving revision 1.76
diff -u -p -r1.76 tc-hppa.c
--- tc-hppa.c	2001/01/14 07:03:49	1.76
+++ tc-hppa.c	2001/01/16 12:23:05
@@ -6053,7 +6053,9 @@ pa_build_unwind_subspace (call_info)
   int reloc;
   char c, *p;
 
-  if (now_seg != text_section)
+  if ((bfd_get_section_flags (stdoutput, now_seg)
+       & (SEC_ALLOC | SEC_LOAD | SEC_READONLY))
+      != (SEC_ALLOC | SEC_LOAD | SEC_READONLY))
     return;
 
   reloc = R_PARISC_SEGREL32;


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Support hand-crafted .PARISC.unwind entries
Date: Wed, 17 Jan 2001 00:46:40 +1100 (EST)
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To: binutils@sourceware.cygnus.com
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This one is useful for _init and _fini and like functions that are spliced
together from pieces.  The assembler can't create sensible unwind info for
such functions;  This little hack allows a hand-crafted solution.

gas/ChangeLog
	* config/tc-hppa.c (tc_gen_reloc): Use SEGREL32 instead of DIR32
	relocs for .PARISC.unwind section.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.

Index: gas/config/tc-hppa.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-hppa.c,v
retrieving revision 1.77
diff -u -p -r1.77 tc-hppa.c
--- tc-hppa.c	2001/01/16 13:06:14	1.77
+++ tc-hppa.c	2001/01/16 13:39:00
@@ -4047,14 +4047,6 @@ tc_gen_reloc (section, fixp)
 
       code = *codes[0];
 
-      reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
-      *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
-      reloc->howto = bfd_reloc_type_lookup (stdoutput,
-					    (bfd_reloc_code_real_type) code);
-      reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
-
-      assert (reloc->howto && (unsigned int) code == reloc->howto->type);

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From: Greg Ingram <ingram@symsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C100 Boots! (Mostly)
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On Mon, 15 Jan 2001, Ryan Bradetich wrote:

> Greg,
> 
> I don't believe you have the latest palo version from cvs.  The latest palo
> version will append a console=tty0 or console=ttyS0 to the Kernel
> command line.
> 
> Try updating your palo, then try again.

I grabbed the one labelled as latest from the CVS directory on the FTP
site.  Is that the latest? 

- Greg


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C100 Boots! (Mostly)
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On Tue, Jan 16, 2001 at 08:40:43AM -0600, Greg Ingram wrote:
> I grabbed the one labelled as latest from the CVS directory on the FTP
> site.  Is that the latest? 

dunno, does `grep ttyS0 palo/Makefile' reveal anything?  if yes, it's
the latest.  and you can always `cvs up' in the palo directory to get
the latest version.

-- 
Revolutions do not require corporate support.


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From: Aleksandr Konstantinov <sanjak@tipas.lt>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting C100
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Matthew Wilcox wrote:
> 
> On Mon, Jan 15, 2001 at 10:30:09PM +0100, Aleksandr Konstantinov wrote:
> > Can anybody explain me how to get console NOT on serial link ?
> 
> activate CONFIG_STI and use `console=tty0' instead of `console=ttyS0'.
Do You mean CONFIG_STI_CONSOLE ? I have it, and CONFIG_SERIAL_CONSOLE
too.
Palo also sets console=tty0 .  Booting goes till "Switching from PDC
console"
and then welcome message from palinux cdrom appears on serial link.




A.K.


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Subject: [parisc-linux] binfmt_som
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I was a little over-optimistic about releasing a first cut today,
I guess :-)

I've moved `som.h' from include/asm-parisc/ to include/linux/, like elf.h
& a.out.h.  I've also populated it with the structures which I've needed
so far, copied from the document below.  binfmt_som.c is still showing
extreme signs of its ELF heritage and definitely won't compile yet.

I have a question; what is `union name_pt' defined as?  It's referenced
several times in ``32-bit PA-RISC Run-Time Architecture Document
11.0 version 1.0'', page 3-56 for one example.  However, grepping the
document reveals no trace of a definition of this (or `union name_p'
for that matter).

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Booting C100
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On Tue, Jan 16, 2001 at 03:56:29PM +0200, Aleksandr Konstantinov wrote:
> Matthew Wilcox wrote:
> > 
> > On Mon, Jan 15, 2001 at 10:30:09PM +0100, Aleksandr Konstantinov wrote:
> > > Can anybody explain me how to get console NOT on serial link ?
> > 
> > activate CONFIG_STI and use `console=tty0' instead of `console=ttyS0'.
> Do You mean CONFIG_STI_CONSOLE ? I have it, and CONFIG_SERIAL_CONSOLE
> too.
> Palo also sets console=tty0 .  Booting goes till "Switching from PDC
> console"
> and then welcome message from palinux cdrom appears on serial link.

then that's a bug.  i shan't be able to fix it until i have access to an
STI-capable machine, which is a few weeks away yet.

-- 
Revolutions do not require corporate support.


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From: Greg Ingram <ingram@symsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C100 Boots!  Really!  Got a shell!
Date: Tue, 16 Jan 2001 09:57:09 -0600 (CST)
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Gentlemen,

In a previous post I reported that telnet was answering but I got a
'permission denied' error and never saw a login prompt.  I suspected that
the root file system was never being remounted as read-write.  After
appending 'rw' to the kernel command line I'm able to login via
telnet.  Woohoo!  I'm using the nfsroot tarball from the FTP site.  Might
there be a problem in it such that / isn't properly remounted?

Some other things:

Trying STI for the console didn't work.  I eventually enabled the console
on the line printer (no printer connected though) and disabled the console
on the serial port.  I stop getting messages on the serial port at:

	Set default PSW W bit to 0

but the boot continues.

Also, I find this in dmesg output:

!!die_if_kernel: sleep(52): Unaligned data reference 28
 
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001011
r0-3     00000000 40178938 4018cc7b 401760d4
r4-7     40197148 00000000 00000031 001e8481
r8-11    bb00014c bb000140 00000002 4001ada0
r12-15   4001ad7c 00000000 000929b0 00000000
r16-19   00000000 0007e808 00078440 40197148
r20-23   001e8000 40188f14 bb000414 00000008
r24-27   40190460 00000000 401760d4 00076808
r28-31   00000016 00000000 bb0006c0 4009d987
sr0-3    0000007a 0000007a 00000000 0000007a
sr4-7    0000007a 0000007a 0000007a 0000007a
 
IASQ: 0000007a 0000007a IAOQ: 4018d0ab 4018d0af
 IIR: 0c6011d4    ISR: 0000007a  IOR: 401760d4
ORIG_R28: 00000000
!!die_if_kernel: nscd(97): Unaligned data reference 28
 
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011
r0-3     00000000 40167938 40029c7b 401650d4
r4-7     40034148 00000000 00000031 001e8481
r8-11    bb000160 bb000158 00000001 4001ada0
r12-15   4001ad7c 00000000 0008c350 00000000
r16-19   00000000 0007e808 00078440 40034148
r20-23   001e8000 40025f14 bb000414 00000008
r24-27   4002d460 00000000 401650d4 000054dc
r28-31   00000016 00000000 bb0006c0 4008c987
sr0-3    000000f9 000000f9 00000000 000000f9
sr4-7    000000f9 000000f9 000000f9 000000f9
 
IASQ: 000000f9 000000f9 IAOQ: 4002a0ab 4002a0af
 IIR: 0c6011d4    ISR: 000000f9  IOR: 401650d4
ORIG_R28: 00000000
                                                                                
Next on the agenda:  Get Linux on the local hard drive.

Cheers,

- Greg



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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Booting C100
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On Tuesday 16 January 2001 14:56, Aleksandr Konstantinov wrote:
> Matthew Wilcox wrote:
> > On Mon, Jan 15, 2001 at 10:30:09PM +0100, Aleksandr Konstantinov wrote:
> > > Can anybody explain me how to get console NOT on serial link ?
> >
> > activate CONFIG_STI and use `console=tty0' instead of `console=ttyS0'.
>
> Do You mean CONFIG_STI_CONSOLE ? I have it, and CONFIG_SERIAL_CONSOLE
> too.
> Palo also sets console=tty0 .  Booting goes till "Switching from PDC
> console"
> and then welcome message from palinux cdrom appears on serial link.

Try to enable just one of both: CONFIG_STI_CONSOLE _or_ CONFIG_SERIAL_CONSOLE

Greetings,
         Helge


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Cc: binutils@sourceware.cygnus.com, parisc-linux@puffin.external.hp.com
To: alan@linuxcare.com.au
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Hi Alan,

: We were missing lots of unwind info, especially when using
: -ffunction-sections, which confuses gdb.
: 
: gas/ChangeLog
: 	* config/tc-hppa.c (pa_build_unwind_subspace): Build unwind
: 	depending on section flags, not just for .text.

: Index: gas/config/tc-hppa.c
: ===================================================================
: RCS file: /cvs/src/src/gas/config/tc-hppa.c,v
: retrieving revision 1.76
: diff -u -p -r1.76 tc-hppa.c
: --- tc-hppa.c	2001/01/14 07:03:49	1.76
: +++ tc-hppa.c	2001/01/16 12:23:05
: @@ -6053,7 +6053,9 @@ pa_build_unwind_subspace (call_info)
:    int reloc;
:    char c, *p;
:  
: -  if (now_seg != text_section)
: +  if ((bfd_get_section_flags (stdoutput, now_seg)
: +       & (SEC_ALLOC | SEC_LOAD | SEC_READONLY))
: +      != (SEC_ALLOC | SEC_LOAD | SEC_READONLY))
:      return;

Won't this create unwind info for read only data sections ?  Would
that be a bad thing ?

Cheers
	Nick


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From: herrold <herrold@owlriver.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] overuse of tables in new website
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On Mon, 15 Jan 2001, Matthew Wilcox wrote:

> i have similar complaints about other bits, but i can't be bothered to
> look at them closely when i have no idea whether anyone's paying any
> attention to what i think.

... I am ... I agree that you are trying to use dynamite to scrape
off the cruft.

Anyone who does not test web pages with lynx and konquerer should be
horsewhipped.

That said, the CVS generation approach is rather nice -- why not
commit your test pages, Matthew, off a new link on the top page "...
for another view" -- If it goes stale, it may be pruned away -- no
harm, no foul.  What say?

-- Russ



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From: Chelsea Lewis <support@seamem.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Instantly Increase Web Traffic with Links
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Attn: Webmaster

Hi, my name is Chelsea Lewis and I am a web-marketing person at 1st-Memory Warehouse ( http://www.1st-memorywhse.com/ )  in Redmond, WA. I recently visited your website, www.parisc-linux.org, and was pleased with its quality and the fact that our sites have compatible content.  I was hoping that we could exchange url links. Our company's website does get a fair amount of traffic, but we are always looking for more. I have already added your site to our categorized links page , http://www.1st-memorywhse.com/links/themeindex.html , under the Linux category. Please go to the site and make sure that your site's description and other information is suitable. If there are any problems, please email me. 

As one of our Link Partners, I personally placed your site under its own category, so it is easy to find, and included a bold title, description and url. The number of hits both we and our partners receive increases every day, and I would love for your site to be a part of this directory. Reciprocal links are known to generate more traffic than even search engines can create. Even if you see yourself as one of our competitors, I encourage you to link with our site. Our goal is to make sure our web community is able to find other similar, quality sites like your's. Their options as consumers are expanded because they do not have to depend only on search engines. 

I would greatly appreciate a reciprocal link on your site. I have some helpful information about adding a link on your website to my website at http://www.1st-memorywhse.com/links/themeindex.html .  Thank you for taking the time to trade links. I am always pleased to represent various companies on our website, which have a lot to offer the web community. Thank You! 

Cordially Yours:

Chelsea Athena Lewis
support@seamem.com
http://www.1st-memorywhse.com/





..


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] Instantly Increase Web Traffic with Links
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Chelsea Lewis writes...

> 
> Attn: Webmaster
> 
> Hi, my name is Chelsea Lewis and I am a web-marketing person at 1st-Memory Wa
> rehouse ( http://www.1st-memorywhse.com/ )  in Redmond, WA. I recently visite
> d your website, www.parisc-linux.org, and was pleased with its quality and th
> e fact that our sites have compatible content.

Well at least *she* liked the website.

Ha.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Apollo 700 serie  9000/720 already problems !
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Xref: news.gmane.org gmane.linux.ports.parisc:9230

Hi PA-RISC hackers !

I already have problems booting my HP apollo 700 serie (Model 720,
with 50MHz, 64MB RAM).
I build a new cross-compiler tool chain plus glibc-2, and already
was perfect. It was the snap shot of the Jan-13-2000. I also build
the kernel + lifimage. First of all I discovered the kernel crash
after or while parallel port init (also mentioned in your list for
the 735 model). So I configured it out, so my kernel continous booting.
The SCSI probing has a problem with the device ID0, a floppy on a
SCSI adapter. Ok, forget it. Then the kernel continous booting.
The kernel does a bootp and gets the answer from the server, then
it successfully mounts the NFS root, but by booting the init or 
any other tool I tried I see the folloing error:

:
:
Looking up port of RPC 100005/2 on 196.1.1.20
VFS: Mounted root (nfs filesystem) readonly.
Warning: unable to open an initial console.

handle_interruption() pid=1 command='init'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001000000100001011
r0-3     00000000 40019b48 40002dfb 40001504
r4-7     40019b48 40000384 4000ec30 400198f4
r8-11    bb000148 40002d4c 400002f4 00000000
r12-15   00000081 00000080 bb0002f0 bb000048
r16-19   00000000 c02a0640 00000000 40019b48
r20-23   00000041 40000000 40000000 00000000
r24-27   40000000 00000001 bb000148 c011a800
r28-31   00000021 bb000148 bb0003c0 40002daf
sr0-3    00000000 00000000 00000000 0000ffff
sr4-7    00000001 00000001 00000001 00000001

IASQ: 00000001 00000001 IAOQ: 40003393 40003397
 IIR: 0ce61280    ISR: 00000001  IOR: 400198f4
ORIG_R28: 00000000
:
:

Can you give me a short explanation of this dump. 
On the HP I don't know the registers (on intel I do !).
Which describes the instrunction pointer to have a look
in the System.map. Is this IIR ?

The init I tried (the last attempt) was a fresh build `init'
from the init-2.77 package with the cross compiler by setting
the CC= varibale. The build could be done and a check with the
command `file' described the correct image.

What is this for a problem ???

I will add the complete boot log below.

Trying scsi.4.0
Boot path initialized.
Attempting to load IPL.


Hard booted.
palo ipl root@didymos.pladom1.at Sun Jan 14 12:44:07 CET 2001
0/vmlinux 2106807 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs
nfsroot=196.1.1.20:/tf
tpboot/apollo/root console=ttyS0'
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100150 first 00000000 n 3
Segment 0 load 00000000 size 288 mediaptr 0x1000
Segment 1 load 00100000 size 1409924 mediaptr 0x2000
Segment 2 load 0025a000 size 294912 mediaptr 0x15b000
branching to kernel entry point 0x00100150
PDC Console Initialized
The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02cb000
start_parisc(0x504d70,0x504d70,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs
nfsroot=196.1.1.20:/tftpboot
/apollo/root console=ttyS0'
PALO initrd 0-0
model   00002000 00000481 00000000 00000000 0234072e 000011f4 00000004
0000000d 
00000000
vers    00000003
CPUID   vers 0 rev 0
model   9000/720
led_init: CPU_HVERSION 200
Searching for devices in PDC firmware... processor hpa 0xfffbe000
 an older box...
Found devices:
1. Coral SGC Graphics (10) at 0xf8000000, versions 0x4, 0x0, 0x77, 0x0,
0x0
2. Cobra Core BA (11) at 0xf082f000, versions 0x4, 0x0, 0x70, 0x0, 0x0
3. Cobra Core SCSI (10) at 0xf0825000, versions 0x4, 0x0, 0x71, 0x0, 0x0
4. Cobra Core LAN (802.3) (10) at 0xf0826000, versions 0x4, 0x0, 0x72,
0x0, 0x0
5. Cobra Core HIL (10) at 0xf0821000, versions 0x4, 0x0, 0x73, 0x0, 0x0
6. Cobra Core RS-232 (10) at 0xf0823000, versions 0x4, 0x0, 0x75, 0x0,
0x0
7. Cobra Core RS-232 (10) at 0xf0822000, versions 0x4, 0x0, 0x75, 0x0,
0x0
8. Cobra Core Centronics (10) at 0xf0824000, versions 0x4, 0x0, 0x74,
0x0, 0x0
9. Cobra (720) (0) at 0xfffbe000, versions 0x200, 0x0, 0x4, 0x0, 0x81
10. Cobra (1) at 0xfffbf000, versions 0x13, 0x0, 0x9, 0x0, 0x0
That's a total of 10 devices.
CPU(s): 1 x PA7000 (PCX-S) at 50.000000 MHz
Linux version 2.4.0-test10 (root@didymos.pladom1.at) (gcc version 2.96
20000925 
(experimental)) #2 Sun Jan 14 13:11:36 CET 2001
free_bootmem(0x2cb800, 0x3d34800)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 16384
zone(0): 8192 pages.
zone(1): 8192 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/nfs
nfsroot=196.1.1.20:/tftpboot/apollo/root console=ttyS0
trap_init
Error reading tod clock
Calibrating delay loop... 49.77 BogoMIPS
Memory: 61512k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
LED (ASP-style) display at 00000000 registered
Found i82596 at 0xf0826000, IRQ 87
early initialization of device eth0 is deferred
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: enabling 8 loop devices
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 24 64 06 IRQ 87.
82596.c $Revision: 1.14 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ
SERIAL_PCI ena
bled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
SCSI subsystem driver Revision: 1.00
sim700: Couldn't get consistent shared memory
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86
scsi0: Revision 0x0
Post test1, istat 05, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: WARNING: target data areas are not dma coherent!
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
scsi0: Unable to abort command for target 0
scsi0: Unable to send Bus Device Reset for target 0
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 03f98058 (script[0x0016]), dsps = 03f98cee, target = 0
scsi0: Failing command for ID0
scsi0: Unable to abort command for target 0
scsi0: Unable to abort command for target 1
scsi0: Unable to send Bus Device Reset for target 1
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 03f98058 (script[0x0016]), dsps = 03f98cee, target = 0
scsi0: Failing command for ID0
  Vendor: SEAGATE   Model: ST1480   SUN0424  Rev: 7516
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: QUANTUM   Model: PD425S            Rev: 535A
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 4, lun 0
Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
SCSI device sda: 843284 512-byte hdwr sectors (432 MB)
Partition check:
 sda: unknown partition table
SCSI device sdb: 833150 512-byte hdwr sectors (427 MB)
 sdb: unknown partition table
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 4096)
eth0: link ok.
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 196.1.1.20, my address is 196.1.1.110
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kmem_create: Forcing size word alignment - nfs_fh
Looking up port of RPC 100003/2 on 196.1.1.20
Looking up port of RPC 100005/2 on 196.1.1.20
VFS: Mounted root (nfs filesystem) readonly.
Warning: unable to open an initial console.

handle_interruption() pid=1 command='init'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001000000100001011
r0-3     00000000 40019b48 40002dfb 40001504
r4-7     40019b48 40000384 4000ec30 400198f4
r8-11    bb000148 40002d4c 400002f4 00000000
r12-15   00000081 00000080 bb0002f0 bb000048
r16-19   00000000 c02a0640 00000000 40019b48
r20-23   00000041 40000000 40000000 00000000
r24-27   40000000 00000001 bb000148 c011a800
r28-31   00000021 bb000148 bb0003c0 40002daf
sr0-3    00000000 00000000 00000000 0000ffff
sr4-7    00000001 00000001 00000001 00000001

IASQ: 00000001 00000001 IAOQ: 40003393 40003397
 IIR: 0ce61280    ISR: 00000001  IOR: 400198f4
ORIG_R28: 00000000

handle_interruption() pid=1 command='init'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001000000100001011
r0-3     00000000 40019b48 40002dfb 40001504
r4-7     40019b48 40000384 4000ec30 400198f4
r8-11    bb000148 40002d4c 400002f4 00000000
r12-15   00000081 00000080 bb0002f0 bb000048
r16-19   00000000 c02a0640 00000000 40019b48
r20-23   00000041 40000000 40000000 00000000
r24-27   40000000 00000001 bb000148 c011a800
r28-31   00000021 bb000148 bb0003c0 40002daf
sr0-3    00000000 00000000 00000000 0000ffff
sr4-7    00000001 00000001 00000001 00000001

IASQ: 00000001 00000001 IAOQ: 40003393 40003397
 IIR: 0ce61280    ISR: 00000001  IOR: 400198f4
ORIG_R28: 00000000

:
:
: ... and so on ...



-------------------------------------------------------------------------
private:        christoph.plattner@dot.at
company:        christoph.plattner@alcatel.at


From - Thu Nov 08 21:15:09 2018
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From: Josiah Carlson <jcarlson@macalester.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] I'm having a couple problems
Date: Tue, 16 Jan 2001 16:57:00 -0600
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Alright...

Now that I've been mucking around with the .5 image for a week, I
thought I would ask two questions to solve the riddles that I am butting
my head on...

1. After following the directions listed on
http://www.parisc-linux.org/install.html, then booting off the newly
created bootable hard drive...I'm left with a read only volume. 
Numerous reboots to the image, chmods, changing of fstab and such on the
hard drive...I still cannot install debian packages (I get errors about
a read-only volume...hey, isn't that why I changed fstab?)
How do I get _actual_ r/w access to the volume that the system boots
>from?

2. How do I set up the ethernet interface within parisc-linux?  I've
never done this manually (always let redhat and netbsd do it's thing).

Thank you,
 - Josiah


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From: Matthieu Delahaye <delahaym@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Lasi harmony driver with mixer
Date: Tue, 16 Jan 2001 23:59:56 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:9232

This is a multi-part message in MIME format.
--------------BBAF73974AD67657A56E9988
Content-Type: text/plain; charset=us-ascii
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Here is a patch to get mixer working on Lasi harmony audio.
It's based on work of Alex deVries.
At the boot time, the sound is muted.
If all works fine, you can use any mixer application which support OSS
Interface to change gains.
For tests, I used aumix which is available at
http://www.jpj.net/~trevor/aumix.html

You still can only play 8 bits mono u-law file.

Matthieu Delahaye
ESIEE Team
http://www.esiee.fr/puffin


--------------BBAF73974AD67657A56E9988
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 filename="harmony.diff"

diff -Nru linux.original/drivers/sound/Makefile linux/drivers/sound/Makefile
--- linux.original/drivers/sound/Makefile	Tue Jan 16 21:31:10 2001
+++ linux/drivers/sound/Makefile	Tue Jan 16 23:08:30 2001
@@ -108,7 +108,7 @@
 # Declare multi-part drivers.
 
 list-multi	:= sound.o gus.o pas2.o sb.o sb_lib.o vidc_mod.o \
-    soundcore.o wavefront.o
+    soundcore.o wavefront.o harmony.o
 
 sound-objs	:= 							\
     dev_table.o soundcard.o sound_syms.o		\
@@ -124,6 +124,7 @@
 sb_lib-objs	:= sb_common.o sb_audio.o sb_midi.o sb_mixer.o sb_ess.o
 vidc_mod-objs	:= vidc.o vidc_fill.o
 wavefront-objs  := wavfront.o wf_midi.o yss225.o
+harmony-objs    := harmony_driver.o harmony_sound.o harmony_mixer.o
 
 
 # Extract lists of the multi-part drivers.
@@ -189,6 +190,9 @@
 wavefront.o: $(wavefront-objs)
 	$(LD) -r -o $@ $(wavefront-objs)
 
+harmony.o: $(harmony-objs)
+	$(LD) -r -o $@ $(harmony-objs.o)
+
 # Firmware files that need translation
 #
 # The translated files are protected by a file that keeps track
@@ -332,3 +336,8 @@
 ifneq ($(FILES_BOOT_CHANGED),)
 $(FILES_BOOT_CHANGED): dummy
 endif
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony.h linux/drivers/sound/harmony.h
--- linux.original/drivers/sound/harmony.h	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony.h	Tue Jan 16 23:08:44 2001
@@ -0,0 +1,135 @@
+#ifndef _HARMONY_H
+#define _HARMONY_H
+#include <linux/config.h>
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/malloc.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <asm/gsc.h>
+
+#include <asm/pgalloc.h>
+#include <asm/pdc.h>
+#include <asm/page.h>
+#include <asm/segment.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/hardware.h>
+
+#include <asm/irq.h>            /* for "gsc" irq functions */
+#include <asm/gsc.h>
+
+#include "sound_config.h"
+#define MAX_BUFS 3
+
+#define CNTL_C		0x80000000
+#define	CNTL_ST		0x00000020
+#define CNTL_44100	0x00000015
+#define CNTL_8000	0x00000008
+
+#define GAINCTL_HE	0x08000000
+#define GAINCTL_LE	0x04000000
+#define GAINCTL_SE	0x02000000
+
+#define DSTATUS_PN	0x00000200
+#define DSTATUS_RN	0x00000002
+
+#define DSTATUS_IE	0x80000000
+
+#define HARMONY_DF_16BIT_LINEAR	0
+#define HARMONY_DF_8BIT_ULAW	1
+#define HARMONY_DF_8BIT_ALAW	2
+
+#define HARMONY_SS_MONO 1
+#define HARMONY_SS_STEREO 0
+
+#define HARMONY_SR_8KHZ 0x08
+#define HARMONY_SR_16KHZ 0x09
+#define HARMONY_SR_27KHZ 0x0A
+#define HARMONY_SR_32KHZ 0x0B
+#define HARMONY_SR_48KHZ 0x0E
+#define HARMONY_SR_9KHZ 0x0F
+#define HARMONY_SR_5KHZ 0x10
+#define HARMONY_SR_11KHZ 0x11
+#define HARMONY_SR_18KHZ 0x12
+#define HARMONY_SR_22KHZ 0x13
+#define HARMONY_SR_37KHZ 0x14
+#define HARMONY_SR_44KHZ 0x15
+#define HARMONY_SR_33KHZ 0x16
+#define HARMONY_SR_6KHZ 0x17
+
+#define HARMONY_BUF_NONE	-1
+#define HARMONY_BUF_EMPTY	0
+#define HARMONY_BUF_FILLED	1
+#define HARMONY_BUF_READY_TO_PLAY	2
+#define HARMONY_BUF_PLAYING	3
+
+struct harmony_hpa {
+	u8	unused000;
+	u8	id;
+	u8	teleshare_id;
+	u8	unused003;
+	u32	reset;
+	u32	cntl;
+	u32	gainctl;
+	u32	pnxtadd;
+	u32	pcuradd;
+	u32	rnxtadd;
+	u32	rcuradd;
+	u32	dstatus;
+	u32	ov;
+	u32	pio;
+	u32	unused02c;
+	u32	unused030[3];
+	u32	diag;
+};
+
+#define dma_consistent 0
+
+#define  CHECK_WBACK(addr,len) \
+        do { if (!dma_consistent) dma_cache_wback((unsigned long)addr,len); } while (0) 
+#define  CHECK_INV(addr,len) \
+        do { if (!dma_consistent) dma_cache_inv((unsigned long)addr,len); } while(0)
+
+#define  CHECK_WBACK_INV(addr,len) \
+        do { if (!dma_consistent) dma_cache_wback_inv((unsigned long)addr,len); } while (0) 
+
+struct harmony_dev {
+	int irq;
+	int frames_so_far;
+	struct harmony_hpa  *hpa;
+	int done;
+	int buf_state[MAX_BUFS+1];
+	u32 current_gain;
+	u8 data_format;
+	u8 sample_rate;
+	u8 stereo_select;  /* 1 = stereo, 0 = mono */
+	/* outstanding_buffers is a count that ensures that the number
+	   of recorded frames is the same as the number of played frames. 
+	   In the stable situation, this number is zero.  You should never
+	   disable interrupts until this is zero. */
+	int outstanding_buffers; 
+};
+
+int harmony_mixer_init(struct harmony_dev *);
+int harmony_audio_init(struct harmony_dev *);
+
+
+
+
+#endif _HARMONY_H
+
+
+
+
+
+
+
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony_driver.c linux/drivers/sound/harmony_driver.c
--- linux.original/drivers/sound/harmony_driver.c	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony_driver.c	Tue Jan 16 23:09:13 2001
@@ -0,0 +1,183 @@
+/* 
+
+ 	drivers/sound/harmony.c 
+
+	This is a sound driver for Lasi's Harmony sound chip.  This is
+	unlikely to be used for anything other than a PA-RISC.
+
+	Harmony is found in HP 712s, 715/new, and many other GSC based machines. 
+Copyright 2000 (c) Linuxcare Canada, Alex deVries <alex@linuxcare.com>
+
+Bugs:
+
+1. Doesn't work on 715/old
+
+This driver doesn't work on 715/old machines, which include the 715/75.  The
+chip used for this is technically called 'Vivace', which is identical to 
+Harmony.  Should be easy to fix.  It has something to do with the way it is
+reported by the inventory code.  The HPA is not that of Lasi or ASP so the
+interrupts aren't registered properly.
+
+3. gain control ioctls are missing
+4. recording is missing
+
+5. Buffer handling code
+
+The three buffer system should probably be changed to use N buffers, so we 
+can load the buffers into memory and then exit.  Shouldn't be too hard, and 
+the performance will be a lot nicer.
+
+6. Clicks at start and finish
+
+I'm not sure why, but somehow I've introduced two clicks at the start and
+two clicks at the finish of each playing.  Shouldn't be too hard to track down.
+
+
+About the rotating buffer
+-------------------------
+
+I'm going to explain how the rotating buffer thing works because I had a hard
+time figuring it out for myself.
+
+At any given time, harmony uses two different buffers.  One is the frame
+that is currently playing, another is the frame that is ready to be played.
+
+Obviously you can't be writing into either of these frames while the chip
+is playing, or you'll hear clicks, pops and out of order frames.  One weekend
+of listening to RMS sing The Free Software Song out of order is a good way to 
+drive this point home.
+
+So, we use a total of three frames.  One is in PLAYING mode, one is is 
+READY_TO_PLAY mode, and the third is either LOADED or EMPTY.  All buffers
+start up by being EMTPY.  When harmony_audio_write loads up two frames,
+interrupts are started and the loop starts.  The ISR pops in the first frame,
+marking it as PLAYING.  The ISR will get called again, and the second 
+frame will be loaded and marked as READY_TO_PLAY.  When the first frame is
+done, the ISR will be called again; frame one is marked as EMPTY to reload,
+frame two is marked PLAYING, frame three is marked READY_TO_PLAY.
+
+All the while, harmony_audio_write is looking for frames marked EMPTY, and
+filling them and marking them LOADED.
+
+Yes, this does actually work.
+
+Let me save you an entire Thursday of listening to "orvalds Linus Linux, I 
+prounouce as Linus This is" by giving you this rotating buffer code.
+
+*/
+
+
+
+/* 
+   The source code is splitted into two new files:
+   harmony_driver.c about hardware detectetion and
+   harmony_sound.c which manage /dev/dsp
+   
+   A new file, harmony_mixer.c, manage /dev/mixer.
+
+                                 Matthieu Delahaye
+*/
+
+
+
+
+#include "harmony.h"
+
+
+
+
+static struct harmony_dev harmony;
+
+
+static int 
+harmony_driver_callback(struct hp_device *d, struct pa_iodc_driver *dri)
+{
+	
+	u8	id;
+	u8	rev;
+	u32	cntl;
+	int ret;
+
+	/* Set the HPA of harmony */
+
+	harmony.hpa = d->hpa;
+
+	/* Grab an IRQ from Lasi */
+	harmony.irq = busdevice_alloc_irq(d);
+
+	if (!harmony.irq) {
+		printk(KERN_ERR "Harmony: problem getting irq\n");
+		return -1;
+	}
+
+	request_region(&harmony, 13, "harmony");
+
+	/* Grab the ID and revision from the device */
+	id = gsc_readb((void *) &(harmony.hpa->id));
+
+	if((id | 1) != 0x15) {
+		printk(KERN_WARNING "harmony_init: wrong id %02x\n", id);
+		return -EBUSY;
+	}
+	cntl = gsc_readl(&harmony.hpa->cntl);
+	rev = ((cntl>>20)&0xff);
+
+        printk(KERN_INFO "Lasi Harmony Audio rev. %i at 0x%x, using IRQ %i\n",rev,(unsigned int) d->hpa,harmony.irq);
+
+
+
+	
+	
+	
+	/* Make sure the control bit isn't set, although I don't think it 
+	   ever is. */
+
+	if(cntl & CNTL_C) {
+		printk(KERN_WARNING "harmony_init: CNTL busy\n");
+		return -EBUSY;
+	}
+
+	/* Initialize /dev/mixer and /dev/audio  */
+
+
+	if((ret=harmony_mixer_init(&harmony))) return ret;
+	if((ret=harmony_audio_init(&harmony))) return ret;
+
+
+	return 0;
+}
+
+
+
+/* This is the PDC signature to load up the driver. */
+
+
+static struct pa_iodc_driver harmony_drivers_for[] = {
+
+	{HPHW_FIO, 0x01B, 0, 0x0007B, 0x0, 0x0, 
+		DRIVER_CHECK_HWTYPE + DRIVER_CHECK_SVERSION,
+		"Lasi Harmony", "Harmony", (void *) harmony_driver_callback},
+	{0,0,0,0,0,0,0,
+	(char *) NULL,(char *) NULL,(void *) NULL}
+};
+
+
+void __init 
+register_harmony_drivers(void)
+{
+        register_driver(harmony_drivers_for);
+}
+
+/* This is the callback that's called by the inventory hardware code if
+it finds a match to the registered driver. */
+
+
+
+
+
+
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony_mixer.c linux/drivers/sound/harmony_mixer.c
--- linux.original/drivers/sound/harmony_mixer.c	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony_mixer.c	Tue Jan 16 23:08:58 2001
@@ -0,0 +1,345 @@
+/*
+ * sound/harmony_mixer.c
+ *
+ * The low level mixer driver for the Harmony card.
+ */
+
+/*
+ *  function ioctl inspired from file sb_mixer.c
+ *  Matthieu Delahaye (2001)
+ */
+
+#include "sound_config.h"
+
+#include "harmony.h"
+#include "harmony_mixer.h"
+
+
+struct harmony_dev * harmony_mixer;
+
+
+/*
+ * This is the only place where the gainctl is written
+ */
+
+static void harmony_mixer_set_gain(void)
+{
+  int cntl;
+  while((cntl = gsc_readl(&harmony_mixer->hpa->cntl)) & CNTL_C);
+#if 0
+  printk(KERN_INFO "Harmony gain is now %x\n",harmony_mixer->current_gain);
+#endif
+  gsc_writel(harmony_mixer->current_gain, &harmony_mixer->hpa->gainctl);
+  while((cntl = gsc_readl(&harmony_mixer->hpa->cntl)) & CNTL_C);
+  
+}
+
+
+/* 
+ *  Read gain of selected channel.
+ *  The OSS rate is from 0 (silent) to 100 -> need some conversions
+ *
+ *  The harmony gain are attenuation for output and monitor gain.
+ *                   is amplifaction for input gain
+ */
+
+static int harmony_mixer_get_level(int channel)
+{
+  int left_level;
+  int right_level;
+
+  if(channel == SOUND_MIXER_OGAIN)
+    {
+      left_level=(harmony_mixer->current_gain & GAIN_LO_MASK) >> GAIN_LO_SHIFT;
+      right_level=(harmony_mixer->current_gain & GAIN_RO_MASK) >> GAIN_RO_SHIFT;
+      left_level=(MAX_OUTPUT_LEVEL - left_level) * 100 / MAX_OUTPUT_LEVEL;
+      right_level=(MAX_OUTPUT_LEVEL - right_level) * 100 / MAX_OUTPUT_LEVEL;
+      return (right_level << 8)+left_level;
+    }
+  if(channel == SOUND_MIXER_IGAIN)
+    {
+      left_level=(harmony_mixer->current_gain & GAIN_LI_MASK) >> GAIN_LI_SHIFT;
+      right_level=(harmony_mixer->current_gain & GAIN_RI_MASK) >> GAIN_RI_SHIFT;
+      left_level=left_level * 100 / MAX_INPUT_LEVEL;
+      right_level=right_level * 100 / MAX_INPUT_LEVEL;
+      return (right_level << 8)+left_level;
+    }
+  if(channel == SOUND_MIXER_VOLUME)
+    {
+      left_level=(harmony_mixer->current_gain & GAIN_MA_MASK) >> GAIN_MA_SHIFT;
+      left_level=(MAX_VOLUME_LEVEL-left_level)*100/MAX_VOLUME_LEVEL;
+      return left_level;
+    }
+  return -EINVAL;
+}
+
+
+/*
+ * Some conversions for the same reasons.
+ * We give back the new real value(s) due to
+ * the rescale.
+ */
+
+
+static int harmony_mixer_set_level(int channel, int value)
+{
+  int left_level;
+  int right_level;
+  int new_left_level;
+  int new_right_level;
+
+  right_level=(value & 0x0000ff00) >> 8;
+  left_level=value & 0x000000ff;
+  
+  if(channel == SOUND_MIXER_OGAIN)
+    {
+      right_level=(100-right_level)*MAX_OUTPUT_LEVEL/100;
+      left_level=(100-left_level)*MAX_OUTPUT_LEVEL/100;
+      new_right_level=(MAX_OUTPUT_LEVEL - right_level) * 100 / MAX_OUTPUT_LEVEL;
+      new_left_level=(MAX_OUTPUT_LEVEL - left_level) * 100 / MAX_OUTPUT_LEVEL;
+      harmony_mixer->current_gain=(harmony_mixer->current_gain & ~(GAIN_LO_MASK | GAIN_RO_MASK)) | (left_level << GAIN_LO_SHIFT) | (right_level << GAIN_RO_SHIFT);
+      harmony_mixer_set_gain();
+      return (new_right_level << 8) + new_left_level;
+
+    }
+  if(channel == SOUND_MIXER_IGAIN)
+    {
+      
+      right_level=right_level*MAX_INPUT_LEVEL/100;
+      left_level=left_level*MAX_INPUT_LEVEL/100;
+      new_right_level=right_level * 100 / MAX_INPUT_LEVEL;
+      new_left_level=left_level * 100 / MAX_INPUT_LEVEL;
+      harmony_mixer->current_gain=(harmony_mixer->current_gain & ~(GAIN_LI_MASK | GAIN_RI_MASK)) | (left_level << GAIN_LI_SHIFT) | (right_level << GAIN_RI_SHIFT);
+      harmony_mixer_set_gain();
+      return (new_right_level << 8) + new_left_level;
+      
+    }
+  if(channel == SOUND_MIXER_VOLUME)
+    {
+      
+      left_level=(100-left_level)*MAX_VOLUME_LEVEL/100;
+      new_left_level=(MAX_VOLUME_LEVEL-left_level)*100/MAX_VOLUME_LEVEL;
+      harmony_mixer->current_gain=(harmony_mixer->current_gain & ~GAIN_MA_MASK)| (left_level << GAIN_MA_SHIFT);
+      harmony_mixer_set_gain();
+      return new_left_level;
+    }
+ 
+  return -EINVAL;
+}
+
+
+/* 
+ * Return the selected input device (mic or line)
+ */
+
+static int harmony_mixer_get_recmask(void)
+{
+  int current_input_line;
+
+  current_input_line=(harmony_mixer->current_gain & GAIN_IS_MASK) >> GAIN_IS_SHIFT;
+  if(current_input_line) return SOUND_MASK_MIC;
+  else return SOUND_MASK_LINE;
+}
+
+/*
+ * Set the input (only one at time, arbitrary priority to line in)
+ */
+
+static int harmony_mixer_set_recmask(int recmask)
+{
+  int new_input_line;
+  int new_input_mask;
+
+  if((recmask & SOUND_MASK_LINE))
+    {
+      new_input_line=0;
+      new_input_mask=SOUND_MASK_LINE;
+    }
+  else
+    {
+      new_input_line=1;
+      new_input_mask=SOUND_MASK_MIC;
+    }
+  harmony_mixer->current_gain=((harmony_mixer->current_gain & ~GAIN_IS_MASK) | (new_input_line << GAIN_IS_SHIFT ));
+  harmony_mixer_set_gain();
+  return new_input_mask;
+}
+
+
+/* 
+ * give the active outlines
+ */
+
+static int harmony_mixer_get_outmask(void)
+{
+  int outmask;
+
+  outmask=0;
+
+  if(harmony_mixer->current_gain & GAIN_HE_MASK) outmask |=SOUND_MASK_PHONEOUT;
+  if(harmony_mixer->current_gain & GAIN_LE_MASK) outmask |=SOUND_MASK_LINE;
+  if(harmony_mixer->current_gain & GAIN_SE_MASK) outmask |=SOUND_MASK_SPEAKER;
+  return outmask;
+}
+
+
+
+static int harmony_mixer_set_outmask(int outmask)
+{
+  if(outmask & SOUND_MASK_PHONEOUT) 
+    harmony_mixer->current_gain|=GAIN_HE_MASK; 
+  else harmony_mixer->current_gain&=~GAIN_HE_MASK;
+  if(outmask & SOUND_MASK_LINE) harmony_mixer->current_gain|=GAIN_LE_MASK;
+  else harmony_mixer->current_gain&=~GAIN_LE_MASK;
+  if(outmask & SOUND_MASK_SPEAKER) harmony_mixer->current_gain|=GAIN_SE_MASK;
+  else harmony_mixer->current_gain&=~GAIN_SE_MASK;
+  harmony_mixer_set_gain();
+  return (outmask & (SOUND_MASK_PHONEOUT | SOUND_MASK_LINE | SOUND_MASK_SPEAKER));
+
+}
+
+/*
+ * This code is inspired from sb_mixer.c
+ * It determins actions selected by application
+ */
+
+int harmony_mixer_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg)
+{
+  int val;
+  int ret;
+
+  if (((cmd >> 8) & 0xff) == 'M') 
+    {
+      if (_SIOC_DIR(cmd) & _SIOC_WRITE) 
+	{
+	  if (get_user(val, (int *)arg))
+	    return -EFAULT;
+     
+	  switch (cmd & 0xff) 
+	    {
+	    case SOUND_MIXER_RECSRC:
+	      ret = harmony_mixer_set_recmask(val);
+	      break;
+	      
+	    case SOUND_MIXER_OUTSRC:
+	      ret = harmony_mixer_set_outmask(val);
+	      break;
+	      
+	    default:
+	      ret = harmony_mixer_set_level(cmd & 0xff, val);
+	    }
+	}
+      else
+	{
+	  
+	  switch (cmd & 0xff) 
+	    {
+	      
+	    case SOUND_MIXER_RECSRC:
+	      ret = harmony_mixer_get_recmask();
+	      break;
+	      
+	    case SOUND_MIXER_OUTSRC:
+	      ret = harmony_mixer_get_outmask();
+	      break;
+	      
+	    case SOUND_MIXER_DEVMASK:
+	      ret = HARMONY_MIXER_DEVICES;
+	      break;
+	      
+	    case SOUND_MIXER_STEREODEVS:
+	      ret = HARMONY_STEREO_DEVICES;
+	      break;
+	      
+	    case SOUND_MIXER_RECMASK:
+	      ret = HARMONY_RECORDING_DEVICES;
+	      break;
+	      
+	    case SOUND_MIXER_OUTMASK:
+	      ret = HARMONY_OUTPUT_DEVICES;
+	      break;
+	      
+	    case SOUND_MIXER_CAPS:
+	      ret = HARMONY_CAPS;
+	      break;
+	      
+	    default:
+	      ret = harmony_mixer_get_level(cmd & 0xff);
+	      break;
+	    }
+	}
+      return put_user(ret, (int *)arg); 
+    } else
+      return -EINVAL;
+}
+
+static struct file_operations harmony_mixer_fops =
+{
+	owner:	THIS_MODULE,
+	llseek: NULL,
+	read:   NULL,
+	write:	NULL,
+	poll: 	NULL,
+	ioctl: 	harmony_mixer_ioctl,
+	mmap:	NULL,
+	open: 	NULL,
+	release:NULL,
+};
+
+
+/*
+ * Mute all the output and reset Harmony.
+ */
+
+void harmony_mixer_reset(void)
+{
+  harmony_mixer->current_gain=GAIN_TOTAL_SILENCE;
+  harmony_mixer_set_gain();
+  gsc_writel(1, &harmony_mixer->hpa->reset);
+  udelay(100);
+  gsc_writel(0, &harmony_mixer->hpa->reset);
+  harmony_mixer->current_gain=GAIN_DEFAULT;
+  harmony_mixer_set_gain();
+
+
+}
+
+int harmony_mixer_init(struct harmony_dev * harmony_device)
+{
+  
+  int ret;
+  harmony_mixer=harmony_device;
+  
+  /* Register the device file operations */
+
+  ret=register_sound_mixer(&harmony_mixer_fops,-1);
+  if(ret<0){
+    printk(KERN_WARNING "Harmony: Error Registering Mixer Driver\n");
+    return -EFAULT;
+      }
+  
+  harmony_mixer_reset();
+  
+  return 0;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony_mixer.h linux/drivers/sound/harmony_mixer.h
--- linux.original/drivers/sound/harmony_mixer.h	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony_mixer.h	Tue Jan 16 23:08:50 2001
@@ -0,0 +1,58 @@
+/*
+ * sound/harmony_mixer.h
+ * 
+ * Definitions for the Harmony mixer
+ */
+/*
+ * Copyright (C) by Matthieu Delahaye 2001
+ *
+ * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
+ * Version 2 (June 1991). See the "COPYING" file distributed with this software
+ * for more info.
+ */
+
+/*
+ * Channels Positions in mixer register
+ */
+
+#define GAIN_HE_SHIFT   27
+#define GAIN_HE_MASK    ( 1 << GAIN_HE_SHIFT) 
+#define GAIN_LE_SHIFT   26
+#define GAIN_LE_MASK    ( 1 << GAIN_LE_SHIFT) 
+#define GAIN_SE_SHIFT   25
+#define GAIN_SE_MASK    ( 1 << GAIN_SE_SHIFT) 
+#define GAIN_IS_SHIFT   24
+#define GAIN_IS_MASK    ( 1 << GAIN_IS_SHIFT) 
+#define GAIN_MA_SHIFT   20
+#define GAIN_MA_MASK    ( 0x0f << GAIN_MA_SHIFT) 
+#define GAIN_LI_SHIFT   16
+#define GAIN_LI_MASK    ( 0x0f << GAIN_LI_SHIFT) 
+#define GAIN_RI_SHIFT   12
+#define GAIN_RI_MASK    ( 0x0f << GAIN_RI_SHIFT) 
+#define GAIN_LO_SHIFT   6
+#define GAIN_LO_MASK    ( 0x3f << GAIN_LO_SHIFT) 
+#define GAIN_RO_SHIFT   0
+#define GAIN_RO_MASK    ( 0x3f << GAIN_RO_SHIFT) 
+
+#define GAIN_TOTAL_SILENCE 0x00F00FFF
+#define GAIN_DEFAULT       0x0FF00FFF
+
+#define MAX_OUTPUT_LEVEL (GAIN_RO_MASK >> GAIN_RO_SHIFT)
+#define MAX_INPUT_LEVEL  (GAIN_RI_MASK >> GAIN_RI_SHIFT)
+#define MAX_VOLUME_LEVEL (GAIN_MA_MASK >> GAIN_MA_SHIFT)
+
+
+#define HARMONY_MIXER_DEVICES (SOUND_MASK_OGAIN|SOUND_MASK_IGAIN|SOUND_MASK_VOLUME)
+#define HARMONY_RECORDING_DEVICES (SOUND_MASK_MIC | SOUND_MASK_LINE )
+#define HARMONY_OUTPUT_DEVICES (SOUND_MASK_SPEAKER | SOUND_MASK_LINE | SOUND_MASK_PHONEOUT )
+#define HARMONY_CAPS 1
+#define HARMONY_STEREO_DEVICES (SOUND_MASK_IGAIN | SOUND_MASK_OGAIN)
+
+/*
+ * Channels Mask in mixer register
+ */
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony_sound.c linux/drivers/sound/harmony_sound.c
--- linux.original/drivers/sound/harmony_sound.c	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony_sound.c	Tue Jan 16 23:09:19 2001
@@ -0,0 +1,603 @@
+/* 
+
+ 	drivers/sound/harmony.c 
+
+	This is a sound driver for Lasi's Harmony sound chip.  This is
+	unlikely to be used for anything other than a PA-RISC.
+
+	Harmony is found in HP 712s, 715/new, and many other GSC based machines. 
+Copyright 2000 (c) Linuxcare Canada, Alex deVries <alex@linuxcare.com>
+
+Bugs:
+
+1. Doesn't work on 715/old
+
+This driver doesn't work on 715/old machines, which include the 715/75.  The
+chip used for this is technically called 'Vivace', which is identical to 
+Harmony.  Should be easy to fix.  It has something to do with the way it is
+reported by the inventory code.  The HPA is not that of Lasi or ASP so the
+interrupts aren't registered properly.
+
+3. gain control ioctls are missing
+4. recording is missing
+
+5. Buffer handling code
+
+The three buffer system should probably be changed to use N buffers, so we 
+can load the buffers into memory and then exit.  Shouldn't be too hard, and 
+the performance will be a lot nicer.
+
+6. Clicks at start and finish
+
+I'm not sure why, but somehow I've introduced two clicks at the start and
+two clicks at the finish of each playing.  Shouldn't be too hard to track down.
+
+
+About the rotating buffer
+-------------------------
+
+I'm going to explain how the rotating buffer thing works because I had a hard
+time figuring it out for myself.
+
+At any given time, harmony uses two different buffers.  One is the frame
+that is currently playing, another is the frame that is ready to be played.
+
+Obviously you can't be writing into either of these frames while the chip
+is playing, or you'll hear clicks, pops and out of order frames.  One weekend
+of listening to RMS sing The Free Software Song out of order is a good way to 
+drive this point home.
+
+So, we use a total of three frames.  One is in PLAYING mode, one is is 
+READY_TO_PLAY mode, and the third is either LOADED or EMPTY.  All buffers
+start up by being EMTPY.  When harmony_audio_write loads up two frames,
+interrupts are started and the loop starts.  The ISR pops in the first frame,
+marking it as PLAYING.  The ISR will get called again, and the second 
+frame will be loaded and marked as READY_TO_PLAY.  When the first frame is
+done, the ISR will be called again; frame one is marked as EMPTY to reload,
+frame two is marked PLAYING, frame three is marked READY_TO_PLAY.
+
+All the while, harmony_audio_write is looking for frames marked EMPTY, and
+filling them and marking them LOADED.
+
+Yes, this does actually work.
+
+Let me save you an entire Thursday of listening to "orvalds Linus Linux, I 
+prounouce as Linus This is" by giving you this rotating buffer code.
+
+*/
+
+
+/* 
+   Changeg struct harmony_dev named harmony to 
+   a pointer (named harmony_audio) to the same structure
+   
+   Putted out all access to gain and reset 
+   (harmony_mixer now managed these)
+
+                                  Matthieu Delahaye
+
+*/
+
+
+/* Until we have recording working, this is where we're putting the recording data. */
+
+/* The following is required because of our cache incoherence */
+#include "harmony.h"
+static char graveyard[4096] __attribute__((aligned(4096)));
+
+static unsigned char aligned_buf [4096*(MAX_BUFS+1)] __attribute__ ((aligned (4096))); 
+
+
+
+static int harmony_audio_open(struct inode *inode, struct file *file);
+static int harmony_audio_release(struct inode *inode, struct file *file);
+static loff_t harmony_audio_llseek(struct file *file, loff_t offset, int whence);
+static ssize_t harmony_audio_read(struct file *file,
+                                char *buffer,
+                                size_t count,
+                                loff_t *ppos);
+static ssize_t harmony_audio_write(struct file *file,
+                                 const char *buffer,
+                                 size_t count,
+                                 loff_t *ppos);
+static unsigned int harmony_audio_poll(struct file *file,
+                                     struct poll_table_struct *wait);
+static int harmony_audio_ioctl(struct inode *inode,
+                                struct file *file,
+                                unsigned int cmd,
+                                unsigned long arg);
+static int harmony_audio_mmap(struct file *file, struct vm_area_struct *vma);
+
+
+static void harmony_interrupt(int irq, void *dev, struct pt_regs *regs);
+
+static void harmony_set_control(u8 data_format, u8 sample_rate, u8 stereo_select) ;
+static void harmony_set_format(u8 data_format);
+static void harmony_set_rate(u8 data_rate);
+static int harmony_enable_interrupts(void); 
+static int harmony_disable_interrupts(void);
+static int harmony_silence(unsigned char * buffer,int end, int start);
+
+static struct file_operations harmony_audio_fops = {
+	owner: THIS_MODULE,
+	llseek: harmony_audio_llseek,
+	read: 	harmony_audio_read,
+	write:	harmony_audio_write,
+	poll: 	harmony_audio_poll,
+	ioctl: 	harmony_audio_ioctl,
+	mmap:	harmony_audio_mmap,
+	open: 	harmony_audio_open,
+	release:	harmony_audio_release,
+};
+
+static struct harmony_dev * harmony_audio;
+
+/* This is the PDC signature to load up the driver. */
+
+
+/* This is the callback that's called by the inventory hardware code if
+it finds a match to the registered driver. */
+
+static void harmony_update_control(void) {
+	u32 default_cntl;
+
+	/* Set CNTL */
+	default_cntl = ((1 << 31) |  /* The C bit */
+		(harmony_audio->data_format << 6) |   /* Set the data format */
+		(harmony_audio->stereo_select << 5) |   /* Stereo select */
+		(harmony_audio->sample_rate));        /* Set sample rate */
+
+	/* initialize CNTL */
+	gsc_writel( default_cntl, &harmony_audio->hpa->cntl);
+}
+
+static void harmony_set_control(u8 data_format, u8 sample_rate, u8 stereo_select) {
+
+	harmony_audio->sample_rate = sample_rate;
+	harmony_audio->data_format = data_format;
+	harmony_audio->stereo_select = stereo_select;
+	harmony_update_control();
+}
+static void harmony_set_rate(u8 data_rate) {
+	harmony_audio->sample_rate = data_rate;
+	harmony_update_control();
+}
+
+static void harmony_set_format(u8 data_format) {
+
+	harmony_audio->data_format = data_format;
+	harmony_update_control();
+}
+
+static void harmony_set_stereo(u8 stereo_select) {
+
+	harmony_audio->stereo_select = stereo_select;
+	harmony_update_control();
+}
+
+static int harmony_disable_interrupts(void) {
+	/* Enable interrupts to start playing again */
+	gsc_writel(0,&(harmony_audio->hpa->dstatus)); 
+	return 0;
+}
+
+static int harmony_enable_interrupts(void) {
+	/* Enable interrupts to start playing again */
+	gsc_writel(DSTATUS_IE,&(harmony_audio->hpa->dstatus)); 
+	return 0;
+}
+
+/*
+ * silence()
+ *
+ * This subroutine fills in a buffer starting at location start and
+ * silences for length bytes.  This references the current
+ * configuration of the audio format.
+ *
+ */
+
+static int harmony_silence(unsigned char * buffer,int start, int length) {
+
+	u8 silence_char = 0;
+
+	/* Despite what you hear, silence is different in
+	   different audio formats.  */
+
+	switch (harmony_audio->data_format) {
+		case HARMONY_DF_16BIT_LINEAR: silence_char = 0; break;
+		case HARMONY_DF_8BIT_ULAW:	silence_char = 0x55; break;
+		case HARMONY_DF_8BIT_ALAW:	silence_char = 0xff; break;
+		default: silence_char = 0;
+	}
+
+	memset(aligned_buf+start,silence_char, length);
+	return 0;
+}
+
+
+static int harmony_audio_open(struct inode *inode, struct file *file)
+{
+	int i;
+	u32	cntl;
+
+	/* Clear out the state of all the buffers */
+	for (i=0;i<MAX_BUFS;i++) {
+		harmony_audio->buf_state[i] = HARMONY_BUF_EMPTY;
+	}
+	harmony_audio->frames_so_far = 0;
+	harmony_audio->done = 0;
+	harmony_audio->outstanding_buffers = 0; /* Start off in a balanced mode. */
+	harmony_set_control(HARMONY_DF_8BIT_ULAW,HARMONY_SR_8KHZ,HARMONY_SS_STEREO); 
+
+	/* Clear out all the buffers and flush to cache */
+	harmony_silence(aligned_buf,0,4096*MAX_BUFS);
+	CHECK_WBACK_INV(aligned_buf,4096*MAX_BUFS);
+
+	while((cntl = gsc_readl(&harmony_audio->hpa->cntl)) & CNTL_C);
+
+	return 0;
+}
+
+/*
+ * Release (close) the audio device.
+ */
+
+static int harmony_audio_release(struct inode *inode, struct file *file)
+{
+
+	return 0;
+}
+static loff_t harmony_audio_llseek(struct file *file, loff_t offset, int whence)
+{
+	printk(KERN_ERR "harmony: llseek\n");
+	return -ENODEV;
+}
+
+static ssize_t harmony_audio_read(struct file *file,
+                                char *buffer,
+                                size_t count,
+                                loff_t *ppos)
+{
+	printk(KERN_ERR "harmony: read\n");
+	return -ENODEV;
+}
+
+static int find_free_buffer(void) {
+
+	int i,buf_to_fill_in = -1;
+
+	for (i=MAX_BUFS-1;i>=0;i--) {
+		if (harmony_audio->buf_state[i] == HARMONY_BUF_EMPTY) {
+			buf_to_fill_in = i;
+		}
+	}
+	return buf_to_fill_in;
+}
+
+
+static ssize_t harmony_audio_write(struct file *file,
+                                 const char *buffer,
+                                 size_t size_count,
+                                 loff_t *ppos)
+{
+
+	u32 status;
+	int total_count = (int) size_count;
+	int count = 0;
+	int frame_size;
+	int buf_to_fill_in = 0;
+	long timeout ;
+	int dstatus,cntl;
+	
+	while(count < total_count) {
+
+		/* Wait until we're out of control mode */
+		while ((status = gsc_readl(&(harmony_audio->hpa->cntl))) >> 31); 
+
+		/* Figure out which buffer to fill in */
+		timeout = 0;
+		buf_to_fill_in = HARMONY_BUF_NONE;
+		while ((buf_to_fill_in<0) && (timeout<100000)) {
+			buf_to_fill_in = find_free_buffer();
+			if (buf_to_fill_in < 0) {
+				udelay(10);
+				timeout++;
+			}
+		}
+		if (timeout==100000) {
+			return -1;
+		}
+
+		/* Figure out the size of the frame */
+		if ((total_count - count) > 4095) {
+			frame_size = 4096;
+		} else {
+			frame_size = total_count - count;
+			/* Clear out the buffer, since there we'll only be 
+			   overlaying part of the old buffer with the new one */
+			harmony_silence(aligned_buf,(4096*buf_to_fill_in), 4096);
+		}
+
+		/* Copy the page to an aligned buffer */
+		copy_from_user(aligned_buf+(4096*buf_to_fill_in), buffer,frame_size );
+		CHECK_WBACK_INV(aligned_buf,4096*MAX_BUFS);
+
+		harmony_audio->buf_state[buf_to_fill_in] = HARMONY_BUF_FILLED; 
+
+		harmony_audio->done = 0;
+		count += frame_size;
+
+		if (frame_size < 4096) {
+			count = total_count;
+			harmony_audio->done = 1;
+		}
+
+
+	dstatus = gsc_readl(&harmony_audio->hpa->dstatus);
+
+	cntl = gsc_readl(&harmony_audio->hpa->cntl);
+
+printk("write: buf: %i frame: %i done: %i cntl: 0x%x dstatus: 0x%x\n",buf_to_fill_in,harmony_audio->frames_so_far,harmony_audio->done,cntl,dstatus);
+
+
+
+		if (harmony_audio->frames_so_far == 1) {
+			gsc_writel(__pa(aligned_buf+(4096*0)),&(harmony_audio->hpa->pnxtadd));  
+			gsc_writel(__pa(graveyard),&(harmony_audio->hpa->rnxtadd));  
+			harmony_enable_interrupts();
+		}
+
+		harmony_audio->frames_so_far++;
+	}
+
+	return count;
+}
+static unsigned int harmony_audio_poll(struct file *file,
+                                     struct poll_table_struct *wait)
+{
+	printk(KERN_ERR "harmony: poll\n");
+	return -ENODEV;
+}
+
+#define DBGEV printk
+#define DBGX printk
+#define DBGP
+
+static int harmony_audio_ioctl(struct inode *inode,
+                                struct file *file,
+                                unsigned int cmd,
+                                unsigned long arg)
+{
+
+
+	unsigned long flags;
+	int ival;
+	u32 new_format,newrate;
+	
+	switch (cmd) {
+	case OSS_GETVERSION:		/* _SIOR ('M', 118, int) */
+		DBGX("OSS_GETVERSION\n");
+		ival = SOUND_VERSION;
+		return put_user(ival, (int *) arg);
+
+	case SNDCTL_DSP_GETCAPS:	/* _SIOR ('P',15, int) */
+		DBGX("SNDCTL_DSP_GETCAPS\n");
+		ival = DSP_CAP_DUPLEX | DSP_CAP_BATCH ;
+		return put_user(ival, (int *) arg);
+
+	case SNDCTL_DSP_GETFMTS:	/* _SIOR ('P',11, int) */
+		DBGX("SNDCTL_DSP_GETFMTS\n");
+		ival = (AFMT_S16_BE | AFMT_MU_LAW | AFMT_A_LAW ); 
+		return put_user(ival, (int *) arg);
+		break;
+
+	case SOUND_PCM_READ_RATE:	/* _SIOR ('P', 2, int) */
+/*
+		I have no idea what this should be. 
+*/
+		ival = 0;	
+		return put_user(ival, (int *) arg);
+
+	case SNDCTL_DSP_SPEED:
+
+		if (get_user(ival, (int *) arg))
+			return -EFAULT;
+		if (ival) {
+			switch(ival) {
+				case 8000: newrate = HARMONY_SR_8KHZ; break;
+				case 16000: newrate = HARMONY_SR_16KHZ; break; 
+				case 27428: newrate = HARMONY_SR_27KHZ; break; 
+				case 32000: newrate = HARMONY_SR_32KHZ; break; 
+				case 48000: newrate = HARMONY_SR_48KHZ; break; 
+				case 9600: newrate = HARMONY_SR_9KHZ; break; 
+				case 5125: newrate = HARMONY_SR_5KHZ; break; 
+				case 11025: newrate = HARMONY_SR_11KHZ; break; 
+				case 18900: newrate = HARMONY_SR_18KHZ; break; 
+				case 22050: newrate = HARMONY_SR_22KHZ; break; 
+				case 37800: newrate = HARMONY_SR_37KHZ; break; 
+				case 44100: newrate = HARMONY_SR_44KHZ; break; 
+				case 33075: newrate = HARMONY_SR_33KHZ; break; 
+				case 6615: newrate = HARMONY_SR_6KHZ; break; 
+				default: printk("Could not match rate %d\n",ival); newrate = HARMONY_SR_8KHZ;
+			}
+			harmony_set_rate(newrate);
+		} else {
+			ival = harmony_audio->sample_rate;
+		}
+		return put_user(ival,(int*) arg);
+
+	case SNDCTL_DSP_STEREO:		/* _SIOWR('P', 3, int) */
+		if (get_user(ival, (int *) arg))
+			return -EFAULT;
+		if (ival != 0 && ival != 1)
+			return -EINVAL;
+		harmony_set_stereo(ival);
+		return put_user(ival, (int *) arg);
+
+	case SNDCTL_DSP_GETBLKSIZE:	/* _SIOWR('P', 4, int) */
+		ival = 4096;
+		return put_user(ival, (int *) arg);
+	case SNDCTL_DSP_RESET:
+		return 0;
+
+	case SNDCTL_DSP_SETFMT:		/* _SIOWR('P',5, int) */
+		if (get_user(ival, (int *) arg)) {
+			printk("arg, couldn't get arg\n");
+			return -EFAULT;
+		}
+		if (ival != AFMT_QUERY) {
+			switch (ival) {
+				case AFMT_MU_LAW: new_format = HARMONY_DF_8BIT_ULAW; break;
+				case AFMT_A_LAW:	new_format = HARMONY_DF_8BIT_ALAW; break;
+				case AFMT_U16_BE:	new_format = HARMONY_DF_16BIT_LINEAR; break; 
+				default: {
+					printk("Invalid sound format %d\n",ival);
+					return -EINVAL;
+				}
+			}
+			harmony_set_format(new_format);
+		} else {
+			switch (harmony_audio->data_format) {
+				case HARMONY_DF_8BIT_ULAW: ival = AFMT_MU_LAW; break;
+				case HARMONY_DF_8BIT_ALAW: ival = AFMT_A_LAW; break;
+				case HARMONY_DF_16BIT_LINEAR:	ival = AFMT_U16_BE; break;
+				default: ival = 0;
+			}
+		}
+		return put_user(ival, (int *) arg);
+
+	default:
+		DBGP("------ OH NO unknown ioctl 0x%x\n", cmd);
+		return -EINVAL;
+	}
+	DBGP("unimplemented ioctl 0x%x\n", cmd);
+	return -EINVAL;
+}
+static int harmony_audio_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	printk(KERN_ERR "harmony: mmap\n");
+	return -ENODEV;
+}
+
+static void harmony_interrupt(int irq, void *dev, struct pt_regs *regs)
+{
+	u32 dstatus,pcuradd;
+	struct harmony_hpa * hpa;
+	int i, buf_to_free = 0, curbuf = MAX_BUFS;
+
+	/* Setup the hpa */
+
+	hpa = ((struct harmony_dev *)dev)->hpa;
+	printk(KERN_INFO "Interrupt\n");
+	
+	/* Read dstatus and pcuradd (the current address) */
+	dstatus = gsc_readl(&hpa->dstatus);
+	pcuradd = gsc_readl(&hpa->pcuradd);
+
+	/* Find the last filled buffer */
+	curbuf = MAX_BUFS;
+	for (i=MAX_BUFS-1;i>=0;i--) {
+		if (harmony_audio->buf_state[i]==HARMONY_BUF_FILLED) {
+			curbuf = i;
+		}
+	}
+	if (curbuf == MAX_BUFS) {
+		if (harmony_audio->done) {
+		} else {
+			printk("harmony_interrupt: ack, nothing to play yet.  No available buffer.\n");
+		}
+	}
+
+	/* Turn off interrupts */
+	harmony_disable_interrupts();
+	dstatus = gsc_readl(&hpa->dstatus);
+
+	/* Check if this is a request to get the next play buffer */
+	if(dstatus & DSTATUS_PN) {
+		gsc_writel(__pa(aligned_buf+(4096*curbuf)), &hpa->pnxtadd);
+		harmony_audio->outstanding_buffers++;
+
+		if (!harmony_audio->done) {
+
+			/* Set the volume; we probably don't need to do this. */
+		
+			/* Transition the playing buffer to empty*/
+
+			buf_to_free = -1;
+			for (i=0;i<MAX_BUFS;i++) {
+				if (harmony_audio->buf_state[i]==HARMONY_BUF_PLAYING) {
+					buf_to_free = i;
+				}
+			}
+			if (buf_to_free == -1) {
+			} else {
+				harmony_audio->buf_state[buf_to_free] = HARMONY_BUF_EMPTY;
+			}
+
+			/* Transition the buffers that are ready to be played to playing*/
+
+			buf_to_free = -1;
+
+			for (i=0;i<MAX_BUFS;i++) {
+				if (harmony_audio->buf_state[i]==HARMONY_BUF_READY_TO_PLAY) {
+					buf_to_free = i;
+				}
+			}
+			if (buf_to_free == -1) {
+			} else {
+				harmony_audio->buf_state[buf_to_free] = HARMONY_BUF_PLAYING;
+			}
+			harmony_audio->buf_state[curbuf] = HARMONY_BUF_READY_TO_PLAY;
+
+			harmony_enable_interrupts();
+		}
+	}
+
+	/* Check if we're being asked to fill in a recording buffer */
+	if(dstatus & DSTATUS_RN) {
+
+		/* Not supported yet */
+		gsc_writel(__pa(graveyard) , &hpa->rnxtadd);
+		harmony_audio->outstanding_buffers--;
+	}
+	if (harmony_audio->done && (!harmony_audio->outstanding_buffers)) {
+		harmony_disable_interrupts();	
+	}
+}
+
+
+
+int harmony_audio_init(struct harmony_dev * harmony_device)
+{
+   int ret;
+   int cntl;
+   
+   harmony_audio=harmony_device;
+   
+	/* Request that IRQ */
+	request_irq(harmony_audio->irq, &harmony_interrupt, 0 ,"harmony", (void *) harmony_audio);
+
+   	ret = register_sound_dsp(&harmony_audio_fops, -1);
+	if (ret < 0) {
+		printk("Harmony: Error registering\n");
+		return -EFAULT;
+	}
+	harmony_set_control(HARMONY_DF_8BIT_ULAW,HARMONY_SR_8KHZ,HARMONY_SS_STEREO);
+
+	/* Clear the buffers so you don't end up with crap in the buffers. */ 
+
+	harmony_silence(aligned_buf,0,4096*MAX_BUFS);
+
+	/* Make sure this makes it to cache */
+	CHECK_WBACK_INV(aligned_buf,4096*MAX_BUFS);
+
+
+	/* Wait around until we're out of control mode */
+	while((cntl = gsc_readl(&harmony_audio->hpa->cntl)) & CNTL_C);
+	return 0;
+	
+	
+}
+
+
+

--------------BBAF73974AD67657A56E9988--


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Subject: Re: [parisc-linux] binfmt_som
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At 01:09 AM 5/31/99 +0200, Matthew Wilcox wrote:

>I have a question; what is `union name_pt' defined as?  

union name_pt {
                char        *n_name;
                unsigned int n_strx;
              };

Since the offsets into the string tables are "table relative", this 
is typically used to adjust the pointer in order to have it actually
point to the name referenced:

space.name.n_name = space.name.n_strx + som_header.space_strings_location;

Now space.name.n_name refers to the actual name instead of the index.

--
Mark Klein                                 DIS International, Ltd.
http://www.dis.com                         415-892-8400
PGP Public Key Available			


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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Build hppa unwind info for more than .text
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On Tue, 16 Jan 2001, Nick Clifton wrote:

> : -  if (now_seg != text_section)
> : +  if ((bfd_get_section_flags (stdoutput, now_seg)
> : +       & (SEC_ALLOC | SEC_LOAD | SEC_READONLY))
> : +      != (SEC_ALLOC | SEC_LOAD | SEC_READONLY))
> :      return;
> 
> Won't this create unwind info for read only data sections ?

Only if the assembler sees

 .proc
 .callinfo
 .entry

 function body

 .exit
 .procend

You're unlikely to get unwanted unwind info.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.



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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Lasi harmony driver with mixer
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Hi matthieu, i have a few comments.

On Tue, Jan 16, 2001 at 11:59:56PM +0100, Matthieu Delahaye wrote:
> +Bugs:
> +
> +1. Doesn't work on 715/old
> +
> +This driver doesn't work on 715/old machines, which include the 715/75.  The
> +chip used for this is technically called 'Vivace', which is identical to 
> +Harmony.  Should be easy to fix.  It has something to do with the way it is
> +reported by the inventory code.  The HPA is not that of Lasi or ASP so the
> +interrupts aren't registered properly.

afair, prumpf had his harmony driver working on the 715/scorpio.  perhaps
by looking at his source you could see what is missing?

> +int harmony_mixer_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg)
> +{
> +  int val;
> +  int ret;
[...]

it'd be nice if you could rformat this to follow CodingStyle.

> +static struct file_operations harmony_mixer_fops =
> +{
> +	owner:	THIS_MODULE,
> +	llseek: NULL,
> +	read:   NULL,
> +	write:	NULL,
> +	poll: 	NULL,
> +	ioctl: 	harmony_mixer_ioctl,
> +	mmap:	NULL,
> +	open: 	NULL,
> +	release:NULL,
> +};

Don't initialise unused entries to NULL.  That's the point of using
the new syntax for struct initialisation -- that we don't need to list
unused ones.

-- 
Revolutions do not require corporate support.


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From: Nick Clifton <nickc@redhat.com>
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Subject: Re: Build hppa unwind info for more than .text
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Hi Alan,

: > Won't this create unwind info for read only data sections ?
: 
: Only if the assembler sees
: 
:  .proc
:  .callinfo
:  .entry
: 
:  function body
: 
:  .exit
:  .procend
: 
: You're unlikely to get unwanted unwind info.

OK - just checking.

Cheers
	Nick


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From: Xavier Debacker <xavier.debacker@esiee.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PDC Additional Addresses patch
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This is a multi-part message in MIME format.
--------------CB9673829DD973DAA3527F9A
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Hi,

Here is a patch to make linux store additionnal addresses in struct
hp_device, so that drivers can access it cleanly.




Xavier Debacker
ESIEE Team
http://www.esiee.fr/puffin

--------------CB9673829DD973DAA3527F9A
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 filename="addl_addr.patch"

diff -ru linux-orig/arch/parisc/kernel/inventory.c linux/arch/parisc/kernel/inventory.c
--- linux-orig/arch/parisc/kernel/inventory.c	Sun Dec 24 11:07:24 2000
+++ linux/arch/parisc/kernel/inventory.c	Sun Jan 14 03:55:20 2001
@@ -184,6 +184,7 @@
 	long status;
 	int num = 0;
 	long mod_index;
+	struct hp_device * d;
 
 	/* So the idea here is to simply try one SYSTEM_MAP call.  If 
 	   that one works, great, otherwise do it another way */
@@ -202,22 +203,29 @@
 							  mod_index);
 			if (status == PDC_RET_OK) {
 				num++;
-				register_module(module_result.mod_addr);
-#if 0
-
+				d = register_module(module_result.mod_addr);
+ /* #if 0 */
+				
 				/*
 				 * This code is here to show how
 				 * to get the additional address ranges
 				 * for a module.
 				 */
+				d->addl_addr[0] = module_result.mod_addr; /* copy of d->hpa */
 
 				if (module_result.add_addrs) {
 					long addr_index;
+					long max_addr_index;
 
 					printk("Module at %p has %d additional range(s):\n",
 						module_result.mod_addr,
 						module_result.add_addrs);
 
+					if (module_result.add_addrs >= MAX_HPDEV_ADDRS) {
+						printk("MAX_HPDEV_ADDRS is too low, please edit linux/include/asm/hardware.h, and set this value to %d\n", module_result.add_addrs + 1);
+						max_addr_index = MAX_HPDEV_ADDRS - 1;
+					} else  max_addr_index = module_result.add_addrs;	
+
 					for (addr_index = 1;
 						addr_index <= module_result.add_addrs;
 						addr_index++) {
@@ -231,6 +239,7 @@
 						    printk("index %d address %p\n",
 							    addr_index,
 							    addr_result.mod_addr);
+						    d->addl_addr[addr_index] = addr_result.mod_addr;
 						}
 						else {
 						    printk("Bad PDC_FIND_ADDRESS status return (%d) for index %d\n",status,addr_index);
@@ -238,7 +247,7 @@
 						}
 					}
 				}
-#endif
+/* #endif */
 			}
 		}
 	}
diff -ru linux-orig/include/asm-parisc/hardware.h linux/include/asm-parisc/hardware.h
--- linux-orig/include/asm-parisc/hardware.h	Wed Nov 15 23:32:07 2000
+++ linux/include/asm-parisc/hardware.h	Sun Jan 14 03:56:47 2001
@@ -9,6 +9,8 @@
 	char *name; 
 };
 
+#define MAX_HPDEV_ADDRS 4
+
 struct hp_device {
 	unsigned short hw_type:5;	/* HPHW_xxx */
 	unsigned short hversion;	/* HP-UX uses  hv_model:12 */
@@ -20,6 +22,8 @@
                                             reference */
 	unsigned int managed; /* this is if the device has a driver for it */
 	void * hpa;
+	/* infos returned by pdc calls (-------) */
+	unsigned long  addl_addr[MAX_HPDEV_ADDRS];
 
 #ifdef __LP64__
 	/* parms for pdc_pat_cell_module() call */
@@ -30,6 +34,7 @@
 	unsigned long  mod_info;	/* PAT specific - Misc Module info */
 	unsigned long  pmod_loc;	/* physical Module location */
 	unsigned long  mod_path;	/* Module HW path */
+
 #endif
 };

--------------CB9673829DD973DAA3527F9A--


From - Thu Nov 08 21:15:10 2018
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From: Xavier Debacker <xavier.debacker@esiee.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] PDC Additional Addresses patch
Date: Wed, 17 Jan 2001 01:38:30 +0100
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To: rbradetich@uswest.net, parisc-linux <parisc-linux@thepuffingroup.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:9238

don't use that thing, it's an old one.

Xavier.

> Hi,
>
> Here is a patch to make linux store additionnal addresses in struct
> hp_device, so that drivers can access it cleanly.
>
> Xavier Debacker
> ESIEE Team
> http://www.esiee.fr/puffin
>


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
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To: alan@linuxcare.com.au (Alan Modra)
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> OK, here we go.

I am currently bootstrapping with the patch.  However, we still have the
prologue ICE warning which Kenner wants to turn into an abort:

./xgcc -B./ -B/usr/local/hppa1.1-hp-hpux10.20/bin/ -isystem /usr/local/hppa1.1-hp-hpux10.20/include -O2   -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include  -fPIC -g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../gcc -I../../gcc/. -I../../gcc/config -I../../gcc/../include -DUSE_COLLECT2 -DL_floatditf -c ../../gcc/libgcc2.c -o libgcc/./_floatditf.o
../../gcc/libgcc2.c: In function `__floatditf':
../../gcc/libgcc2.c:1043: warning: ICE: would have deleted prologue/epilogue ins
n
(insn 372 370 373 (set (reg:SI 4 %r4 [94])
        (reg:SI 19 %r19)) -1 (nil)
    (nil))

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
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Xref: news.gmane.org gmane.linux.ports.parisc:9240

> ../../gcc/libgcc2.c:1043: warning: ICE: would have deleted prologue/epilogue ins
> n
> (insn 372 370 373 (set (reg:SI 4 %r4 [94])
>         (reg:SI 19 %r19)) -1 (nil)
>     (nil))

The patch has problems:

__floatditf
	.PROC
	.CALLINFO FRAME=192,CALLS,SAVE_RP,ENTRY_GR=4
	.ENTRY
...
	stw %r4,-72(%r30)
...
	copy %r19,%r4
...
	bl _U_Qfadd,%r2
	stw %r19,-32(%r30)
	copy %r3,%r28
...
	ldw -212(%r30),%r2
	ldw -72(%r30),%r4
	ldw -68(%r30),%r3
	bv %r0(%r2)
	ldo -192(%r30),%r30
	.EXIT
	.PROCEND

The restoration of r19 after the call to _U_Qfadd is deleted in the flow2
pass.  When this happens, the prologue save to r4 isn't needed leading to
the ICE warning.  However, the restoration of r19 after the call shouldn't
be deleted because r19 is needed for the return (previous discussion).
We need a "use" in the return to prevent this.

The save of r19 to the stack looks extraneous but I think it is mandated
by the ABI.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Apollo 700 serie 9000/720 already problems !
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Christoph Plattner wrote:
> The SCSI probing has a problem with the device ID0, a floppy on a
> SCSI adapter. Ok, forget it.

Don't forget. That should respond like a standard SCSI device.
Is the device known to work and the SCSI bus configuration ok?

> Warning: unable to open an initial console.

This is typically a problem with "console" parameter passed to Palo.
(boot loader).  Check the mail archive for comments about CONFIG_STI_CONSOLE
(and CONFIG_SERIAL_CONSOLE) and "console" parameter in
the palo Makefile.


> Can you give me a short explanation of this dump. 
> On the HP I don't know the registers (on intel I do !).
> Which describes the instrunction pointer to have a look
> in the System.map. Is this IIR ?

IOAQ. GR02 is the return ptr.
See devresources.hp.com or www.parisc-linux.org for PA 1.1 Arch docs.


> The init I tried (the last attempt) was a fresh build `init'
> from the init-2.77 package with the cross compiler by setting
> the CC= varibale. The build could be done and a check with the
> command `file' described the correct image.

You might try downloading and pulling the init from palinux-v0.5.iso.

> What is this for a problem ???
> 
> I will add the complete boot log below.
> 
> Trying scsi.4.0
> Boot path initialized.
> Attempting to load IPL.
> 
> 
> Hard booted.
> palo ipl root@didymos.pladom1.at Sun Jan 14 12:44:07 CET 2001
> 0/vmlinux 2106807 bytes @ 0x6800
> 0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs
> nfsroot=196.1.1.20:/tf
> tpboot/apollo/root console=ttyS0'
> Kernel: partition 0 file /vmlinux
> ELF32 executable
> 
> Entry 00100150 first 00000000 n 3
> Segment 0 load 00000000 size 288 mediaptr 0x1000
> Segment 1 load 00100000 size 1409924 mediaptr 0x2000
> Segment 2 load 0025a000 size 294912 mediaptr 0x15b000
> branching to kernel entry point 0x00100150
> PDC Console Initialized
> The 32-bit Kernel has started...
> Enabled FP coprocessor
> Free memory starts at: 0xc02cb000
> start_parisc(0x504d70,0x504d70,0x0,0x0)
> PALO command line: 'HOME=/ TERM=linux root=/dev/nfs
> nfsroot=196.1.1.20:/tftpboot
> /apollo/root console=ttyS0'
> PALO initrd 0-0
> model   00002000 00000481 00000000 00000000 0234072e 000011f4 00000004
> 0000000d 
> 00000000
> vers    00000003
> CPUID   vers 0 rev 0
> model   9000/720
> led_init: CPU_HVERSION 200
> Searching for devices in PDC firmware... processor hpa 0xfffbe000
>  an older box...
> Found devices:
> 1. Coral SGC Graphics (10) at 0xf8000000, versions 0x4, 0x0, 0x77, 0x0,
> 0x0
> 2. Cobra Core BA (11) at 0xf082f000, versions 0x4, 0x0, 0x70, 0x0, 0x0
> 3. Cobra Core SCSI (10) at 0xf0825000, versions 0x4, 0x0, 0x71, 0x0, 0x0
> 4. Cobra Core LAN (802.3) (10) at 0xf0826000, versions 0x4, 0x0, 0x72,
> 0x0, 0x0
> 5. Cobra Core HIL (10) at 0xf0821000, versions 0x4, 0x0, 0x73, 0x0, 0x0
> 6. Cobra Core RS-232 (10) at 0xf0823000, versions 0x4, 0x0, 0x75, 0x0,
> 0x0
> 7. Cobra Core RS-232 (10) at 0xf0822000, versions 0x4, 0x0, 0x75, 0x0,
> 0x0
> 8. Cobra Core Centronics (10) at 0xf0824000, versions 0x4, 0x0, 0x74,
> 0x0, 0x0
> 9. Cobra (720) (0) at 0xfffbe000, versions 0x200, 0x0, 0x4, 0x0, 0x81
> 10. Cobra (1) at 0xfffbf000, versions 0x13, 0x0, 0x9, 0x0, 0x0
> That's a total of 10 devices.
> CPU(s): 1 x PA7000 (PCX-S) at 50.000000 MHz
> Linux version 2.4.0-test10 (root@didymos.pladom1.at) (gcc version 2.96
> 20000925 
> (experimental)) #2 Sun Jan 14 13:11:36 CET 2001
> free_bootmem(0x2cb800, 0x3d34800)
> initrd: 00000000-00000000
> pagetable_init
> On node 0 totalpages: 16384
> zone(0): 8192 pages.
> zone(1): 8192 pages.
> zone(2): 0 pages.
> Kernel command line: HOME=/ TERM=linux root=/dev/nfs
> nfsroot=196.1.1.20:/tftpboot/apollo/root console=ttyS0
> trap_init
> Error reading tod clock
> Calibrating delay loop... 49.77 BogoMIPS
> Memory: 61512k available
> Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
> Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
> Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
> POSIX conformance testing by UNIFIX
> ASP version 1 at 0xf0800000 found.
> LED (ASP-style) display at 00000000 registered
> Found i82596 at 0xf0826000, IRQ 87
> early initialization of device eth0 is deferred
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Starting kswapd v1.8
> pty: 256 Unix98 ptys configured
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> loop: enabling 8 loop devices
> 82596.c: MAC of HP700 LAN blindely read from the prom!
> eth0: Couldn't get consistent shared memory
> eth0: 82596 at 0xf0826000, 08 00 09 24 64 06 IRQ 87.
> 82596.c $Revision: 1.14 $
> Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ
> SERIAL_PCI ena
> bled
> ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
> ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
> Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
> SCSI subsystem driver Revision: 1.00
> sim700: Couldn't get consistent shared memory
> sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86
> scsi0: Revision 0x0
> Post test1, istat 05, sstat0 00, dstat 84
> sim700: WARNING IRQ probe failed, (returned 0)
> scsi0: WARNING: target data areas are not dma coherent!
> scsi0: test 1 completed ok.
> scsi0 : LASI/Simple 53c7xx
> scsi0: Unable to abort command for target 0
> scsi0: Unable to send Bus Device Reset for target 0
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
> scsi0: dsp = 03f98058 (script[0x0016]), dsps = 03f98cee, target = 0
> scsi0: Failing command for ID0
> scsi0: Unable to abort command for target 0
> scsi0: Unable to abort command for target 1
> scsi0: Unable to send Bus Device Reset for target 1
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
> scsi0: dsp = 03f98058 (script[0x0016]), dsps = 03f98cee, target = 0
> scsi0: Failing command for ID0
>   Vendor: SEAGATE   Model: ST1480   SUN0424  Rev: 7516
>   Type:   Direct-Access                      ANSI SCSI revision: 02
>   Vendor: QUANTUM   Model: PD425S            Rev: 535A
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Detected scsi disk sda at scsi0, channel 0, id 4, lun 0
> Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
> SCSI device sda: 843284 512-byte hdwr sectors (432 MB)
> Partition check:
>  sda: unknown partition table
> SCSI device sdb: 833150 512-byte hdwr sectors (427 MB)
>  sdb: unknown partition table
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 4096 bind 4096)
> eth0: link ok.
> Sending BOOTP requests.... OK
> IP-Config: Got BOOTP answer from 196.1.1.20, my address is 196.1.1.110
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> kmem_create: Forcing size word alignment - nfs_fh
> Looking up port of RPC 100003/2 on 196.1.1.20
> Looking up port of RPC 100005/2 on 196.1.1.20
> VFS: Mounted root (nfs filesystem) readonly.
> Warning: unable to open an initial console.
> 
> handle_interruption() pid=1 command='init'
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001000000100001011
> r0-3     00000000 40019b48 40002dfb 40001504
> r4-7     40019b48 40000384 4000ec30 400198f4
> r8-11    bb000148 40002d4c 400002f4 00000000
> r12-15   00000081 00000080 bb0002f0 bb000048
> r16-19   00000000 c02a0640 00000000 40019b48
> r20-23   00000041 40000000 40000000 00000000
> r24-27   40000000 00000001 bb000148 c011a800
> r28-31   00000021 bb000148 bb0003c0 40002daf
> sr0-3    00000000 00000000 00000000 0000ffff
> sr4-7    00000001 00000001 00000001 00000001
> 
> IASQ: 00000001 00000001 IAOQ: 40003393 40003397
>  IIR: 0ce61280    ISR: 00000001  IOR: 400198f4
> ORIG_R28: 00000000
> 
> handle_interruption() pid=1 command='init'
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001000000100001011
> r0-3     00000000 40019b48 40002dfb 40001504
> r4-7     40019b48 40000384 4000ec30 400198f4
> r8-11    bb000148 40002d4c 400002f4 00000000
> r12-15   00000081 00000080 bb0002f0 bb000048
> r16-19   00000000 c02a0640 00000000 40019b48
> r20-23   00000041 40000000 40000000 00000000
> r24-27   40000000 00000001 bb000148 c011a800
> r28-31   00000021 bb000148 bb0003c0 40002daf
> sr0-3    00000000 00000000 00000000 0000ffff
> sr4-7    00000001 00000001 00000001 00000001
> 
> IASQ: 00000001 00000001 IAOQ: 40003393 40003397
>  IIR: 0ce61280    ISR: 00000001  IOR: 400198f4
> ORIG_R28: 00000000
> 
> :
> :
> : ... and so on ...
> 
> 
> 
> -------------------------------------------------------------------------
> private:        christoph.plattner@dot.at
> company:        christoph.plattner@alcatel.at
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] I'm having a couple problems
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Josiah Carlson wrote:
...
> How do I get _actual_ r/w access to the volume that the system boots
> from?

Clean filesystem and fstab enty corresponds to the root filesystem.
You need to post more info on this I think.
Start with a console log up to login prompt.

> 2. How do I set up the ethernet interface within parisc-linux?  I've
> never done this manually (always let redhat and netbsd do it's thing).

ifconfig and route commands.
Or edit /etc/net/interfaces and use ifup and ifdown commands.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Jeffrey A Law <law@redhat.com>
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Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
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        parisc-linux@puffin.external.hp.com
To: Alan Modra <alan@linuxcare.com.au>
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  In message <Pine.LNX.4.21.0101161848180.4272-100000@front.linuxcare.com.au>yo
u write:
  > On Mon, 15 Jan 2001, Richard Henderson wrote:
  > 
  > > On Tue, Jan 16, 2001 at 12:20:19PM +1100, Alan Modra wrote:
  > > > 	* config/pa/pa.c (pa_init_machine_status, pa_free_machine_statu
  > s,
  > > > 	pa_init_expanders): New functions.
  > > 
  > > You need a mark_machine_status function.  It is also much better
  > > to set the global variables once in override_options than for
  > > every function in init_expanders.
Actually, just to be clear, we don't want to do this initialization
in the override_options since we're generating a register!  We need to
do that for each function!

  > gcc/ChangeLog
  > 	* config/pa/pa.h (PIC_OFFSET_TABLE_REGNUM_SAVED): Remove.
  > 	(machine_function): Define.
  > 	(PIC_OFFSET_TABLE_SAVE_RTX) : Define.
  > 	* config/pa/pa.c (pa_init_machine_status, pa_mark_machine_status,
  > 	pa_free_machine_status): New functions.
  > 	(override_options): Set {init,mark,free}_machine_status to above.
  > 	(hppa_expand_prologue): Use PIC_OFFSET_TABLE_SAVE_RTX instead of
  > 	PIC_OFFSET_TABLE_REGNUM_SAVED.
  > 	* config/pa/pa.md: Use PIC_OFFSET_TABLE_SAVE_RTX instead of
  > 	PIC_OFFSET_TABLE_REGNUM_SAVED throughout.
  > 	* config/pa/pa32-regs.h (CONDITIONAL_REGISTER_USAGE): Remove
  > 	references to PIC_OFFSET_TABLE_REGNUM_SAVED.
  > 	* config/pa/pa64-regs.h (CONDITIONAL_REGISTER_USAGE): Likewise.
I've installed this patch.

Jeff


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From: Alex deVries <adevries@redhat.com>
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Subject: Re: [parisc-linux] fixed rbootd rpm
Date: Mon, 31 May 1999 16:06:35 -0400 (EDT)
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Mailing it to me (or just make it readable in your home directory at
redhat.com) is the best way.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team


On Sat, 29 May 1999, mgalgoci@redhat.com wrote:

> 
> Hi folks
> 	I downloaded the rbootd rpm ftp the puffin site and 
> found that the source rpm did not build properly on Red Hat
> 6.0, so I fixed it. To whom or to where should I send the fixed
> binary and source rpms?
> 
> Cheers,
> 
> Matt
> 
> --
>  Matt Galgoci /////////////////////////////////// "Moo?"
>  Honorary Member of Generation Why. /////////////////// 
>  //////////////////////////////////////////////////////
>  Man....you smell like penguin.         Yes, have some. 
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


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From: Jeffrey A Law <law@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
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 In message <Pine.LNX.4.21.0101161848180.4272-100000@front.linuxcare.com.au>yo
u write:
  > +  if (flag_pic
  > +      && (GET_CODE (PIC_OFFSET_TABLE_SAVE_RTX) != REG
  > +	  || HARD_REGISTER_P (PIC_OFFSET_TABLE_SAVE_RTX)))
  > +    emit_move_insn (PIC_OFFSET_TABLE_SAVE_RTX,
  >  		    gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM));
I do have a question about this particular hunk of code.

I can't think of a condition where PIC_OFFSET_TABLE_SAVE_RTX would not be
a reg when this code was executed.  Simlarly I can't think of a case where
it would be a hard reg.

I think we should just emit the insn unconditionally unless you're aware
of some reason we can't shouldn't.

We're probably also going to need to emit a use of the %r19 and maybe %r27
on the return insns to ensure the pic register is restored after the
final call in any given function.

jeff


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From: Alex deVries <alex@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Lasi harmony driver with mixer
Date: Wed, 17 Jan 2001 00:46:06 -0500
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Cc: Matthieu Delahaye <delahaym@esiee.fr>, parisc-linux@thepuffingroup.com
To: Matthew Wilcox <matthew@wil.cx>
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Matthew Wilcox wrote:
> 
> afair, prumpf had his harmony driver working on the 715/scorpio.  perhaps
> by looking at his source you could see what is missing?

I started harmony.c with the latest version of prumpf's driver, which
really didn't do anything at all.  I checked every tree I could find
(including his trees on sourceforge),
but the only one I found may have at one point played a hard coded
file.  There's not a lot left of it in my driver.  I definitely couldn't
get it to work on a 712, let alone a 715/old.

The audio HPA on the 715/old is way out of bounds for it to be a part of
Lasi or ASP, so it looks like another audio chip.  It doesn't have the
right ID register, and doesn't respond to any setup attempts.

Matthieu, it's good to hear about the gain control patches.  Now go sort
out the 16 bit audio format problem! :)

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
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> 
>  In message <Pine.LNX.4.21.0101161848180.4272-100000@front.linuxcare.com.au>yo
> u write:
>   > +  if (flag_pic
>   > +      && (GET_CODE (PIC_OFFSET_TABLE_SAVE_RTX) != REG
>   > +	  || HARD_REGISTER_P (PIC_OFFSET_TABLE_SAVE_RTX)))
>   > +    emit_move_insn (PIC_OFFSET_TABLE_SAVE_RTX,
>   >  		    gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM));
> I do have a question about this particular hunk of code.
> 
> I can't think of a condition where PIC_OFFSET_TABLE_SAVE_RTX would not be
> a reg when this code was executed.  Simlarly I can't think of a case where
> it would be a hard reg.
> 
> I think we should just emit the insn unconditionally unless you're aware
> of some reason we can't shouldn't.

I am fairly certain that it is being emitted (see email from a couple
hours ago about ICE warning).  As I understand it, the reason we don't
emit it unconditionally is that insns can't be deleted in the prologue,
so we try not to emit it if it isn't needed.

> We're probably also going to need to emit a use of the %r19 and maybe %r27
> on the return insns to ensure the pic register is restored after the
> final call in any given function.

Yup.

I am currently running a bootstrap with the following additional patch.
I reverted to EPILOGUE_USES because I have the feeling that there are
problems with putting the use in the return insn.  See the last test
results which I posted yesterday at
<http://gcc.gnu.org/ml/gcc-testresults/2001-01/msg00204.html>.

The results were done with a stock built except for reverting the call
used patch for the PIC_OFFSET_TABLE_REGNUM_SAVED register.  A previous
run using EPILOGUE_USES rather than the use in the trivial return had
much better results.  However, it is possible the problem is elsewhere.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2001-01-17  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa.h (EPILOGUE_USES): Define.  The epilogue uses the return pointer
	and when generating pic code the pic offset table register.
	* pa.md (return, return_internal): Rework.

--- pa.h.save	Tue Jan 16 18:08:18 2001
+++ pa.h	Tue Jan 16 23:44:08 2001
@@ -500,7 +500,7 @@
 #define PIC_OFFSET_TABLE_REGNUM (TARGET_64BIT ? 27 : 19)
 #define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED 1
 
-/* Register into which we save the PIC_OFFEST_TABLE_REGNUM so that it
+/* Register into which we save the PIC_OFFSET_TABLE_REGNUM so that it
    can be restored across function calls.  */
 #define PIC_OFFSET_TABLE_SAVE_RTX (cfun->machine->pic_offset_table_save_rtx)
 
@@ -918,6 +918,9 @@
 #define FUNCTION_EPILOGUE(FILE, SIZE)			\
   output_function_epilogue (FILE, SIZE)
 
+#define EPILOGUE_USES(REGNO) \
+  ((REGNO) == 2 || (flag_pic && (REGNO) == PIC_OFFSET_TABLE_REGNUM))
+
 /* Output assembler code for a block containing the constant parts
    of a trampoline, leaving space for the variable parts.\
 
--- pa.md.save	Tue Jan 16 18:08:21 2001
+++ pa.md	Tue Jan 16 18:11:02 2001
@@ -5467,9 +5467,7 @@
 ;; Unconditional and other jump instructions.
 
 (define_insn "return"
-  [(return)
-   (use (reg:SI 2))
-   (const_int 0)]
+  [(return)]
   "hppa_can_use_return_insn_p ()"
   "*
 {
@@ -5485,7 +5483,7 @@
 (define_insn "return_internal"
   [(return)
    (use (reg:SI 2))
-   (const_int 1)]
+   (const_int 0)]
   ""
   "*
 {


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
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        parisc-linux@puffin.external.hp.com
To: Jeffrey A Law <law@redhat.com>
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On Tue, 16 Jan 2001, Jeffrey A Law wrote:

>  In message <Pine.LNX.4.21.0101161848180.4272-100000@front.linuxcare.com.au>yo
> u write:
>   > +  if (flag_pic
>   > +      && (GET_CODE (PIC_OFFSET_TABLE_SAVE_RTX) != REG
>   > +	  || HARD_REGISTER_P (PIC_OFFSET_TABLE_SAVE_RTX)))
>   > +    emit_move_insn (PIC_OFFSET_TABLE_SAVE_RTX,
>   >  		    gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM));
> I do have a question about this particular hunk of code.
> 
> I can't think of a condition where PIC_OFFSET_TABLE_SAVE_RTX would not be
> a reg when this code was executed.  Simlarly I can't think of a case where
> it would be a hard reg.

What I was trying to do here is test whether the pseudo has been allocated
a register, or the case where register pressure causes it to spill to a
stack slot.  I must admit coding something based on inspecting rtl here
under gdb, ie. without a real understanding of what I was doing :-(
There seemed to be three cases:
  - register isn't used so appears as a pseudo
  - register is allocated a hard reg
  - register is allocated a stack slot

> I think we should just emit the insn unconditionally unless you're aware
> of some reason we can't shouldn't.

That causes an error when no dlt save register is needed - prologue
instruction would be deleted.

> We're probably also going to need to emit a use of the %r19 and maybe %r27
> on the return insns to ensure the pic register is restored after the
> final call in any given function.

I've a "use" in the epilogue in my tree.  Hadn't posted that patch as I
wasn't sure it's correct in the face of tail calls.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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From: "Thierry SIMONNET" <t.simonnet@esiee.fr>
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Subject: [parisc-linux] booting 742
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Xref: news.gmane.org gmane.linux.ports.parisc:9249

Hi!

ESIEE have some 742rt (VME Bus)
We try to boot one on an external disk. It works but we don't have any
console.
Have an idea for these oldies.

Thanks

Thierry Simonnet
ESIEE Team
http://www.esiee.fr/puffin



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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] glibc build failing
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Xref: news.gmane.org gmane.linux.ports.parisc:9250

Guess this is for Alan and Matt really...

I am trying to build glibc using todays cvs main branch.  Building on
x86 for parisc.  This is what I do:

  TOP=/mnt/parisc/xc
  MACH=i386-linux
  DEST=$TOP/parisc
  PATH=$TOP/parisc/bin:/bin:/usr/bin
  cd $TOP
  rm -rf parisc
  mkdir parisc
  cd $TOP
  rm -rf build 
  mkdir build
  cd $TOP/build && rm -rf binutils && mkdir binutils && cd binutils
  $TOP/source/binutils/configure --host=$MACH --prefix=$DEST \
          --target=hppa-linux --enable-targets=hppa64-linux \
          --disable-nls
  make
  make install
  cd $TOP/build && rm -rf gcc && mkdir gcc && cd gcc
  $TOP/source/gcc/configure --host=$MACH --prefix=$DEST \
          --target=hppa-linux --enable-shared \
          --disable-nls
  rm -r zlib hppa-linux
  make LANGUAGES=c
  make LANGUAGES=c install
  cd $TOP/source/linux
  make oldconfig
  make dep
  cd $TOP/build && rm -rf glibc && mkdir glibc && cd glibc
  $TOP/source/glibc/configure --host=hppa-linux --build=$MACH \
          --prefix=$DEST/hppa-linux --with-headers=$TOP/source/linux/include \
          --disable-profile --without-cvs --enable-add-ons
  make


And this is what happens...

make[2]: Entering directory `/mnt/parisc/xc/source/glibc/grp'
make[2]: Nothing to be done for `subdir_lib'.
make[2]: Leaving directory `/mnt/parisc/xc/source/glibc/grp'
make  -C pwd subdir_lib
make[2]: Entering directory `/mnt/parisc/xc/source/glibc/pwd'
make[2]: Nothing to be done for `subdir_lib'.
make[2]: Leaving directory `/mnt/parisc/xc/source/glibc/pwd'
make  -C posix subdir_lib
make[2]: Entering directory `/mnt/parisc/xc/source/glibc/posix'
hppa-linux-gcc ../sysdeps/generic/glob.c -c -O2 -Wall -Winline -Wstrict-prototypes -Wwrite-strings -g      -I../include -I. -I/mnt/parisc/xc/build
/glibc/posix -I.. -I../libio  -I/mnt/parisc/xc/build/glibc -I../sysdeps/hppa/elf -I../linuxthreads/sysdeps/unix/sysv/linux/hppa -I../linuxthreads/sysdeps/unix/sysv/linux -I../linuxthreads/sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv -I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/hppa -I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic  -nostdinc -isystem /mnt/parisc/xc/parisc/l
 ib/gcc-lib/hppa-linux/2.96/include -isystem /mnt/parisc/xc/source/linux/include -D_LIBC_REENTRANT -include ../include/libc-symbols.h     -o /mnt/parisc/xc/build/glibc/posix/glob.o
../sysdeps/generic/glob.c: In function `glob_in_dir':
../sysdeps/generic/glob.c:1446: Internal compiler error in eliminate_regs, at reload1.c:2505
   Please submit a full bug report.
   See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[2]: *** [/mnt/parisc/xc/build/glibc/posix/glob.o] Error 1
make[2]: Leaving directory `/mnt/parisc/xc/source/glibc/posix'
make[1]: *** [posix/subdir_lib] Error 2
make[1]: Leaving directory `/mnt/parisc/xc/source/glibc'
make: *** [install] Error 2



The change that seems to have triggered this is in glibc/Makeconfig, 
to build with -O2 rather that -O

Richard


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From: Greg Ingram <ingram@symsys.com>
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Subject: Re: [parisc-linux] I'm having a couple problems
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Josiah,

On Tue, 16 Jan 2001, Josiah Carlson wrote:

> How do I get _actual_ r/w access to the volume that the system boots
> >from?

I had a little trouble here too.  I'm currently working around it by
appending 'rw' to the kernel command line in palo.  This option tells the
kernel to mount the root filesystem as read-write.  It's not the best
solution, but it works for now.
 
- Greg


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From: Jeffrey A Law <law@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
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  In message <Pine.LNX.4.21.0101171802240.9957-100000@front.linuxcare.com.au>yo
u write:
  > What I was trying to do here is test whether the pseudo has been allocated
  > a register, or the case where register pressure causes it to spill to a
  > stack slot.
But the code in question is executed during insn expansion time -- long long
before we know anything about whether or not a particular pseudo register
will be allocated to a hard register or stack slot.

  > There seemed to be three cases:
  >   - register isn't used so appears as a pseudo
  >   - register is allocated a hard reg
  >   - register is allocated a stack slot
But I can't see how the final two cases could happen at that stage in
compilation.  If you actually saw these under the debugger, I'd like you to
investigate them further since I don't believe they can/should happen.
[ Note that I'm not convinced the old check to avoid the restore was
  correct either. ]

  > > I think we should just emit the insn unconditionally unless you're aware
  > > of some reason we can't shouldn't.
  > 
  > That causes an error when no dlt save register is needed - prologue
  > instruction would be deleted.
If we emit a call, then we must reload the PIC register.  There's no iffs
ands or butts about it.  If that's causing aborts/warnings, then we've likely
got a bug _elsewhere_.  It's entirely possible that getting the use on the
return insn will fix that problem.

  > > We're probably also going to need to emit a use of the %r19 and maybe %r2
  > 7
  > > on the return insns to ensure the pic register is restored after the
  > > final call in any given function.
  > 
  > I've a "use" in the epilogue in my tree.  Hadn't posted that patch as I
  > wasn't sure it's correct in the face of tail calls.
We can't perform tail calls when we're generating PIC code right now
(right now PIC == code suitable for shared library on the PA).  Consider
linkage issues.

What makes this interesting is that we don't need/want the use on the trivial
return, but we do want it on the return_internal pattern.  Furthermore, the
register we want to use varies depending on PA32 vs PA64 ABIs.

I've got a patch which handles that stuff in my local tree that I'm testing
right now.
jeff


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Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
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>   In message <Pine.LNX.4.21.0101171802240.9957-100000@front.linuxcare.com.au>yo
> u write:
>   > What I was trying to do here is test whether the pseudo has been allocated
>   > a register, or the case where register pressure causes it to spill to a
>   > stack slot.
> But the code in question is executed during insn expansion time -- long long
> before we know anything about whether or not a particular pseudo register
> will be allocated to a hard register or stack slot.
> 
>   > There seemed to be three cases:
>   >   - register isn't used so appears as a pseudo
>   >   - register is allocated a hard reg
>   >   - register is allocated a stack slot
> But I can't see how the final two cases could happen at that stage in
> compilation.  If you actually saw these under the debugger, I'd like you to
> investigate them further since I don't believe they can/should happen.

I think all these problems can be resolved by emitting the insn at the
first call.  We just have to keep track of whether it has been emitted
or not.

Then, the optimiser can eliminate it if it decides it is better
to reload the pic offset table register from the stack.  We don't have
to worry about where it is allocated, adding notes, etc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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"Thierry SIMONNET" wrote:
> ESIEE have some 742rt (VME Bus)
> We try to boot one on an external disk. It works but we don't have any
> console. Have an idea for these oldies.

Only vaguely - A seperate group in HP supports/developes the "industrial"
workstations since they run RTE (not HPUX) on them. AFAIK, many of those
boxes are similar to B-class workstations w/PXC-L or -L2. I have no clue
how the VME bus is supported - ie bus interface chip or such.

Frank (Rowand): do you have pointers for more info on these boxes?

later,
grant

> Thanks
> 
> Thierry Simonnet
> ESIEE Team
> http://www.esiee.fr/puffin


Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Alex deVries <adevries@redhat.com>
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Subject: [parisc-linux] The plan for SOM, ELF32 and ELF64.
Date: Mon, 31 May 1999 23:16:34 -0400 (EDT)
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At LinuxExpo a week and a half ago, the parisc developers that were there
got together and resolved some of the SOM/ELF32 issues.  I'm going to
document them here for everyone who couldn't be in North Carolina that
week.

The bad news is that we have a challenge no matter what we do.  The
problems are that:

- we don't have a version of ld for SOM in binutils, which means we can't
  really cross compile properly

- we don't have any ELF32 or ELF64 to work from to start with.

The route we've planned to take is:

- focus on SOM only for kernel and userland, but not the linker.  When we
need to link SOM userland, we'll have to do it on HPUX.

- at some point Cygnus will deliver on their HP sponsored gcc support for
PARISC 2.0, which should have some ELF64 code we can borrow. It's
understood that the ELF32 and 64 specs have a lot in common.

No reasonable distribution will be SOM based, so we're going to have to
get ELF done before we get to that point.

Let me know if I'm mistaken on any of this.

- Alex


-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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From: Aleksandr Konstantinov <sanjak@tipas.lt>
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Subject: Re: [parisc-linux] Booting C100
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> > Do You mean CONFIG_STI_CONSOLE ? I have it, and CONFIG_SERIAL_CONSOLE
> > too.
> > Palo also sets console=tty0 .  Booting goes till "Switching from PDC
> > console"
> > and then welcome message from palinux cdrom appears on serial link.
>
> Try to enable just one of both: CONFIG_STI_CONSOLE _or_ CONFIG_SERIAL_CONSOLE

 I tried it and got following behavior:

  While kernel starts/initializes screen stays black. When it suddenly fills with
scattered characters (I could
read few words on screen: TCP, UDP RARP, Init and even something, that looks like
Welcome).



A.K.



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From: Greg Ingram <ingram@symsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C100 Bus Errors
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Howdy,

I've got the nfsroot tarball copied onto a hard disk now and I'm beginning
to play around some more.  Unfortunately, some of the first programs I
tried (make and tar) died with a simple 'Bus error' message.  What does a
bus error really mean?  Is it a problem with the kernel support for my
hardware?

Regards,

- Greg


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C100 Bus Errors
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Greg Ingram wrote:
> What does a bus error really mean?

I've seen it mean an unaligned data reference trap (in user space).
But I'm not sure that's the case here.

> Is it a problem with the kernel support for my hardware?

very unlikely.

grant


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On Wed, 17 Jan 2001, Grant Grundler wrote:

> Greg Ingram wrote:
> > What does a bus error really mean?
> 
> I've seen it mean an unaligned data reference trap (in user space).
> But I'm not sure that's the case here.

That what it is, alright.  It generates a register dump.  Anything I can
do about it?

- Greg


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] booting 742
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On Wed, Jan 17, 2001 at 09:09:24AM -0800, Grant Grundler wrote:
> Only vaguely - A seperate group in HP supports/developes the "industrial"
> workstations since they run RTE (not HPUX) on them. AFAIK, many of those
> boxes are similar to B-class workstations w/PXC-L or -L2. I have no clue
> how the VME bus is supported - ie bus interface chip or such.

http://www.parisc-linux.org/hp9000_models.html

the 742 is PCXT-based; ie it's basically a 715/scorpio on a different
board.

Richard is the expert on VME stuff :-)

how to get a consle on those things... no idea.  there's no PDC on them?

-- 
Revolutions do not require corporate support.


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From: "Phillip D. Beal" <pdbeal@louisville.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting C100
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On Wed, Jan 17, 2001 at 05:40:57AM +0100, Aleksandr Konstantinov wrote:
> > > Do You mean CONFIG_STI_CONSOLE ? I have it, and CONFIG_SERIAL_CONSOLE
> > > too.
> > > Palo also sets console=tty0 .  Booting goes till "Switching from PDC
> > > console"
> > > and then welcome message from palinux cdrom appears on serial link.
> >
> > Try to enable just one of both: CONFIG_STI_CONSOLE _or_ CONFIG_SERIAL_CONSOLE
> 
>  I tried it and got following behavior:
> 
>   While kernel starts/initializes screen stays black. When it suddenly fills with
> scattered characters (I could
> read few words on screen: TCP, UDP RARP, Init and even something, that looks like
> Welcome).
On the 735 and 755 that I've been wrking with, it appears to be all the
Capitol letters come through and the numbers, but the lower case letters
either don't show up or show up as weird ascii charcters...

-- 
Phillip Beal                           ___           _               _   
Electrical and Computer Engineering   | _ ) ___ __ _| |___  _ _  ___| |_ 
pdbeal@louisville.edu                 | _ \/ -_) _` | |_ /_| ' \/ -_)  _|
http://www.bealz.net/                 |___/\___\__,_|_/__(_)_||_\___|\__|


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To: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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  In message <200101171622.LAA13215@hiauly1.hia.nrc.ca>you write:
  > I think all these problems can be resolved by emitting the insn at the
  > first call.  We just have to keep track of whether it has been emitted
  > or not.
I'm not entirely sure what you mean by this.

We must emit the code to restore the PIC register after each call when
generating PIC code.  There are no known exceptions to this rule.

You might be talking about saving the PIC register into the stack or
pseudo during the prologue.  Yes, we could arrange to do that if and
only if we had a call in PIC mode.  That's fairly easy to do.


jeff


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From: Matthieu Delahaye <delahaym@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Lasi harmony driver with mixer
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To: Matthew Wilcox <matthew@wil.cx>
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This is a multi-part message in MIME format.
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Matthew Wilcox wrote:

> > +int harmony_mixer_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg)
> > +{
> > +  int val;
> > +  int ret;
> [...]
>
> it'd be nice if you could rformat this to follow CodingStyle.
>

[...]
here it is the corrected patch according to your remarks

Matthieu Delahaye
ESIEE Team
http://www.esiee.fr/puffin


--------------72A8A284674098C68F7C5063
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diff -Nru linux.original/drivers/sound/Makefile linux/drivers/sound/Makefile
--- linux.original/drivers/sound/Makefile	Tue Jan 16 21:31:10 2001
+++ linux/drivers/sound/Makefile	Wed Jan 17 22:25:49 2001
@@ -108,7 +108,7 @@
 # Declare multi-part drivers.
 
 list-multi	:= sound.o gus.o pas2.o sb.o sb_lib.o vidc_mod.o \
-    soundcore.o wavefront.o
+    soundcore.o wavefront.o harmony.o
 
 sound-objs	:= 							\
     dev_table.o soundcard.o sound_syms.o		\
@@ -124,6 +124,7 @@
 sb_lib-objs	:= sb_common.o sb_audio.o sb_midi.o sb_mixer.o sb_ess.o
 vidc_mod-objs	:= vidc.o vidc_fill.o
 wavefront-objs  := wavfront.o wf_midi.o yss225.o
+harmony-objs    := harmony_driver.o harmony_sound.o harmony_mixer.o
 
 
 # Extract lists of the multi-part drivers.
@@ -189,6 +190,9 @@
 wavefront.o: $(wavefront-objs)
 	$(LD) -r -o $@ $(wavefront-objs)
 
+harmony.o: $(harmony-objs)
+	$(LD) -r -o $@ $(harmony-objs.o)
+
 # Firmware files that need translation
 #
 # The translated files are protected by a file that keeps track
@@ -332,3 +336,8 @@
 ifneq ($(FILES_BOOT_CHANGED),)
 $(FILES_BOOT_CHANGED): dummy
 endif
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony.h linux/drivers/sound/harmony.h
--- linux.original/drivers/sound/harmony.h	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony.h	Wed Jan 17 22:25:34 2001
@@ -0,0 +1,135 @@
+#ifndef _HARMONY_H
+#define _HARMONY_H
+#include <linux/config.h>
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/malloc.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <asm/gsc.h>
+
+#include <asm/pgalloc.h>
+#include <asm/pdc.h>
+#include <asm/page.h>
+#include <asm/segment.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/hardware.h>
+
+#include <asm/irq.h>            /* for "gsc" irq functions */
+#include <asm/gsc.h>
+
+#include "sound_config.h"
+#define MAX_BUFS 3
+
+#define CNTL_C		0x80000000
+#define	CNTL_ST		0x00000020
+#define CNTL_44100	0x00000015
+#define CNTL_8000	0x00000008
+
+#define GAINCTL_HE	0x08000000
+#define GAINCTL_LE	0x04000000
+#define GAINCTL_SE	0x02000000
+
+#define DSTATUS_PN	0x00000200
+#define DSTATUS_RN	0x00000002
+
+#define DSTATUS_IE	0x80000000
+
+#define HARMONY_DF_16BIT_LINEAR	0
+#define HARMONY_DF_8BIT_ULAW	1
+#define HARMONY_DF_8BIT_ALAW	2
+
+#define HARMONY_SS_MONO 1
+#define HARMONY_SS_STEREO 0
+
+#define HARMONY_SR_8KHZ 0x08
+#define HARMONY_SR_16KHZ 0x09
+#define HARMONY_SR_27KHZ 0x0A
+#define HARMONY_SR_32KHZ 0x0B
+#define HARMONY_SR_48KHZ 0x0E
+#define HARMONY_SR_9KHZ 0x0F
+#define HARMONY_SR_5KHZ 0x10
+#define HARMONY_SR_11KHZ 0x11
+#define HARMONY_SR_18KHZ 0x12
+#define HARMONY_SR_22KHZ 0x13
+#define HARMONY_SR_37KHZ 0x14
+#define HARMONY_SR_44KHZ 0x15
+#define HARMONY_SR_33KHZ 0x16
+#define HARMONY_SR_6KHZ 0x17
+
+#define HARMONY_BUF_NONE	-1
+#define HARMONY_BUF_EMPTY	0
+#define HARMONY_BUF_FILLED	1
+#define HARMONY_BUF_READY_TO_PLAY	2
+#define HARMONY_BUF_PLAYING	3
+
+struct harmony_hpa {
+	u8	unused000;
+	u8	id;
+	u8	teleshare_id;
+	u8	unused003;
+	u32	reset;
+	u32	cntl;
+	u32	gainctl;
+	u32	pnxtadd;
+	u32	pcuradd;
+	u32	rnxtadd;
+	u32	rcuradd;
+	u32	dstatus;
+	u32	ov;
+	u32	pio;
+	u32	unused02c;
+	u32	unused030[3];
+	u32	diag;
+};
+
+#define dma_consistent 0
+
+#define  CHECK_WBACK(addr,len) \
+        do { if (!dma_consistent) dma_cache_wback((unsigned long)addr,len); } while (0) 
+#define  CHECK_INV(addr,len) \
+        do { if (!dma_consistent) dma_cache_inv((unsigned long)addr,len); } while(0)
+
+#define  CHECK_WBACK_INV(addr,len) \
+        do { if (!dma_consistent) dma_cache_wback_inv((unsigned long)addr,len); } while (0) 
+
+struct harmony_dev {
+	int irq;
+	int frames_so_far;
+	struct harmony_hpa  *hpa;
+	int done;
+	int buf_state[MAX_BUFS+1];
+	u32 current_gain;
+	u8 data_format;
+	u8 sample_rate;
+	u8 stereo_select;  /* 1 = stereo, 0 = mono */
+	/* outstanding_buffers is a count that ensures that the number
+	   of recorded frames is the same as the number of played frames. 
+	   In the stable situation, this number is zero.  You should never
+	   disable interrupts until this is zero. */
+	int outstanding_buffers; 
+};
+
+int harmony_mixer_init(struct harmony_dev *);
+int harmony_audio_init(struct harmony_dev *);
+
+
+
+
+#endif _HARMONY_H
+
+
+
+
+
+
+
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony_driver.c linux/drivers/sound/harmony_driver.c
--- linux.original/drivers/sound/harmony_driver.c	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony_driver.c	Wed Jan 17 22:24:59 2001
@@ -0,0 +1,183 @@
+/* 
+
+ 	drivers/sound/harmony.c 
+
+	This is a sound driver for Lasi's Harmony sound chip.  This is
+	unlikely to be used for anything other than a PA-RISC.
+
+	Harmony is found in HP 712s, 715/new, and many other GSC based machines. 
+Copyright 2000 (c) Linuxcare Canada, Alex deVries <alex@linuxcare.com>
+
+Bugs:
+
+1. Doesn't work on 715/old
+
+This driver doesn't work on 715/old machines, which include the 715/75.  The
+chip used for this is technically called 'Vivace', which is identical to 
+Harmony.  Should be easy to fix.  It has something to do with the way it is
+reported by the inventory code.  The HPA is not that of Lasi or ASP so the
+interrupts aren't registered properly.
+
+3. gain control ioctls are missing
+4. recording is missing
+
+5. Buffer handling code
+
+The three buffer system should probably be changed to use N buffers, so we 
+can load the buffers into memory and then exit.  Shouldn't be too hard, and 
+the performance will be a lot nicer.
+
+6. Clicks at start and finish
+
+I'm not sure why, but somehow I've introduced two clicks at the start and
+two clicks at the finish of each playing.  Shouldn't be too hard to track down.
+
+
+About the rotating buffer
+-------------------------
+
+I'm going to explain how the rotating buffer thing works because I had a hard
+time figuring it out for myself.
+
+At any given time, harmony uses two different buffers.  One is the frame
+that is currently playing, another is the frame that is ready to be played.
+
+Obviously you can't be writing into either of these frames while the chip
+is playing, or you'll hear clicks, pops and out of order frames.  One weekend
+of listening to RMS sing The Free Software Song out of order is a good way to 
+drive this point home.
+
+So, we use a total of three frames.  One is in PLAYING mode, one is is 
+READY_TO_PLAY mode, and the third is either LOADED or EMPTY.  All buffers
+start up by being EMTPY.  When harmony_audio_write loads up two frames,
+interrupts are started and the loop starts.  The ISR pops in the first frame,
+marking it as PLAYING.  The ISR will get called again, and the second 
+frame will be loaded and marked as READY_TO_PLAY.  When the first frame is
+done, the ISR will be called again; frame one is marked as EMPTY to reload,
+frame two is marked PLAYING, frame three is marked READY_TO_PLAY.
+
+All the while, harmony_audio_write is looking for frames marked EMPTY, and
+filling them and marking them LOADED.
+
+Yes, this does actually work.
+
+Let me save you an entire Thursday of listening to "orvalds Linus Linux, I 
+prounouce as Linus This is" by giving you this rotating buffer code.
+
+*/
+
+
+
+/* 
+   The source code is splitted into two new files:
+   harmony_driver.c about hardware detectetion and
+   harmony_sound.c which manage /dev/dsp
+   
+   A new file, harmony_mixer.c, manage /dev/mixer.
+
+                                 Matthieu Delahaye
+*/
+
+
+
+
+#include "harmony.h"
+
+
+
+
+static struct harmony_dev harmony;
+static int harmony_driver_callback(struct hp_device *d, struct pa_iodc_driver *dri);
+
+
+/* This is the PDC signature to load up the driver. */
+
+static struct pa_iodc_driver harmony_drivers_for[] = {
+
+	{HPHW_FIO, 0x01B, 0, 0x0007B, 0x0, 0x0, 
+		DRIVER_CHECK_HWTYPE + DRIVER_CHECK_SVERSION,
+		"Lasi Harmony", "Harmony", (void *) harmony_driver_callback},
+	{0,0,0,0,0,0,0,
+	(char *) NULL,(char *) NULL,(void *) NULL}
+};
+
+
+void __init 
+register_harmony_drivers(void)
+{
+        register_driver(harmony_drivers_for);
+}
+
+/* This is the callback that's called by the inventory hardware code if
+it finds a match to the registered driver. */
+
+
+static int 
+harmony_driver_callback(struct hp_device *d, struct pa_iodc_driver *dri)
+{
+	
+	u8	id;
+	u8	rev;
+	u32	cntl;
+	int ret;
+
+	/* Set the HPA of harmony */
+
+	harmony.hpa = d->hpa;
+
+	/* Grab an IRQ from Lasi */
+	harmony.irq = busdevice_alloc_irq(d);
+
+	if (!harmony.irq) {
+		printk(KERN_ERR "Harmony: problem getting irq\n");
+		return -1;
+	}
+
+	request_region(&harmony, 13, "harmony");
+
+	/* Grab the ID and revision from the device */
+	id = gsc_readb((void *) &(harmony.hpa->id));
+
+	if((id | 1) != 0x15) {
+		printk(KERN_WARNING "harmony_init: wrong id %02x\n", id);
+		return -EBUSY;
+	}
+	cntl = gsc_readl(&harmony.hpa->cntl);
+	rev = ((cntl>>20)&0xff);
+
+        printk(KERN_INFO "Lasi Harmony Audio rev. %i at 0x%x, using IRQ %i\n",rev,(unsigned int) d->hpa,harmony.irq);
+
+
+
+	
+	
+	
+	/* Make sure the control bit isn't set, although I don't think it 
+	   ever is. */
+
+	if(cntl & CNTL_C) {
+		printk(KERN_WARNING "harmony_init: CNTL busy\n");
+		return -EBUSY;
+	}
+
+	/* Initialize /dev/mixer and /dev/audio  */
+
+
+	if((ret=harmony_mixer_init(&harmony))) return ret;
+	if((ret=harmony_audio_init(&harmony))) return ret;
+
+
+	return 0;
+}
+
+
+
+
+
+
+
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony_mixer.c linux/drivers/sound/harmony_mixer.c
--- linux.original/drivers/sound/harmony_mixer.c	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony_mixer.c	Wed Jan 17 22:25:09 2001
@@ -0,0 +1,317 @@
+/*
+ * sound/harmony_mixer.c
+ *
+ * The low level mixer driver for the Harmony card.
+ */
+
+/*
+ *  function ioctl inspired from file sb_mixer.c
+ *  Matthieu Delahaye (2001)
+ */
+
+#include "sound_config.h"
+
+#include "harmony.h"
+#include "harmony_mixer.h"
+
+
+struct harmony_dev * harmony_mixer;
+
+
+/*
+ * This is the only place where the gainctl is written
+ */
+
+static void harmony_mixer_set_gain(void)
+{
+	int cntl;
+	while((cntl = gsc_readl(&harmony_mixer->hpa->cntl)) & CNTL_C);
+#if 0
+	printk(KERN_INFO "Harmony gain is now %x\n",harmony_mixer->current_gain);
+#endif
+	gsc_writel(harmony_mixer->current_gain, &harmony_mixer->hpa->gainctl);
+	while((cntl = gsc_readl(&harmony_mixer->hpa->cntl)) & CNTL_C);
+  
+}
+
+
+/* 
+ *  Read gain of selected channel.
+ *  The OSS rate is from 0 (silent) to 100 -> need some conversions
+ *
+ *  The harmony gain are attenuation for output and monitor gain.
+ *                   is amplifaction for input gain
+ */
+#define to_harmony_level(level,max) (level)*max/100 
+#define to_oss_level(level,max) (level)*100/max;
+
+static int harmony_mixer_get_level(int channel)
+{
+	int left_level;
+	int right_level;
+
+	if(channel == SOUND_MIXER_OGAIN) {
+		left_level=(harmony_mixer->current_gain & GAIN_LO_MASK) >> GAIN_LO_SHIFT;
+		right_level=(harmony_mixer->current_gain & GAIN_RO_MASK) >> GAIN_RO_SHIFT;
+		left_level=to_oss_level(MAX_OUTPUT_LEVEL - left_level,MAX_OUTPUT_LEVEL);
+		right_level=to_oss_level(MAX_OUTPUT_LEVEL - right_level,MAX_OUTPUT_LEVEL);
+		return (right_level << 8)+left_level;
+	}
+	if(channel == SOUND_MIXER_IGAIN) {
+		left_level=(harmony_mixer->current_gain & GAIN_LI_MASK) >> GAIN_LI_SHIFT;
+		right_level=(harmony_mixer->current_gain & GAIN_RI_MASK) >> GAIN_RI_SHIFT;
+		left_level=to_oss_level(left_level,MAX_INPUT_LEVEL);
+		right_level=to_oss_level(right_level,MAX_INPUT_LEVEL);
+		return (right_level << 8)+left_level;
+	}
+	if(channel == SOUND_MIXER_VOLUME) {
+		left_level=(harmony_mixer->current_gain & GAIN_MA_MASK) >> GAIN_MA_SHIFT;
+		left_level=to_oss_level(MAX_VOLUME_LEVEL-left_level,MAX_VOLUME_LEVEL);
+		return left_level;
+	}
+	return -EINVAL;
+}
+
+
+/*
+ * Some conversions for the same reasons.
+ * We give back the new real value(s) due to
+ * the rescale.
+ */
+
+static int harmony_mixer_set_level(int channel, int value)
+{
+	int left_level;
+	int right_level;
+	int new_left_level;
+	int new_right_level;
+
+	right_level=(value & 0x0000ff00) >> 8;
+	left_level=value & 0x000000ff;
+  
+	if(channel == SOUND_MIXER_OGAIN) {
+		right_level=to_harmony_level(100-right_level,MAX_OUTPUT_LEVEL);
+		left_level=to_harmony_level(100-left_level,MAX_OUTPUT_LEVEL);
+		new_right_level=to_oss_level(MAX_OUTPUT_LEVEL - right_level,MAX_OUTPUT_LEVEL);
+		new_left_level=to_oss_level(MAX_OUTPUT_LEVEL - left_level,MAX_OUTPUT_LEVEL);
+		harmony_mixer->current_gain=(harmony_mixer->current_gain & ~(GAIN_LO_MASK | GAIN_RO_MASK)) | (left_level << GAIN_LO_SHIFT) | (right_level << GAIN_RO_SHIFT);
+		harmony_mixer_set_gain();
+		return (new_right_level << 8) + new_left_level;		
+	}
+	if(channel == SOUND_MIXER_IGAIN) {
+      
+		right_level=to_harmony_level(right_level,MAX_INPUT_LEVEL);
+		left_level=to_harmony_level(left_level,MAX_INPUT_LEVEL);
+		new_right_level=to_oss_level(right_level,MAX_INPUT_LEVEL);
+		new_left_level=to_oss_level(left_level,MAX_INPUT_LEVEL);
+		harmony_mixer->current_gain=(harmony_mixer->current_gain & ~(GAIN_LI_MASK | GAIN_RI_MASK)) | (left_level << GAIN_LI_SHIFT) | (right_level << GAIN_RI_SHIFT);
+		harmony_mixer_set_gain();
+		return (new_right_level << 8) + new_left_level;
+		
+	}
+	if(channel == SOUND_MIXER_VOLUME) {
+		
+		left_level=to_harmony_level(100-left_level,MAX_VOLUME_LEVEL);
+		new_left_level=to_oss_level(MAX_VOLUME_LEVEL-left_level,MAX_VOLUME_LEVEL);
+		harmony_mixer->current_gain=(harmony_mixer->current_gain & ~GAIN_MA_MASK)| (left_level << GAIN_MA_SHIFT);
+		harmony_mixer_set_gain();
+		return new_left_level;
+	}
+
+	return -EINVAL;
+}
+
+
+/* 
+ * Return the selected input device (mic or line)
+ */
+
+static int harmony_mixer_get_recmask(void) 
+{
+	int current_input_line;
+	
+	current_input_line=(harmony_mixer->current_gain & GAIN_IS_MASK) >> GAIN_IS_SHIFT;
+	if(current_input_line) return SOUND_MASK_MIC;
+	else return SOUND_MASK_LINE;
+}
+
+/*
+ * Set the input (only one at time, arbitrary priority to line in)
+ */
+
+static int harmony_mixer_set_recmask(int recmask)
+{
+	int new_input_line;
+	int new_input_mask;
+
+	if((recmask & SOUND_MASK_LINE)) {
+		new_input_line=0;
+		new_input_mask=SOUND_MASK_LINE;
+	} else  {
+		new_input_line=1;
+		new_input_mask=SOUND_MASK_MIC;
+	}
+	harmony_mixer->current_gain=((harmony_mixer->current_gain & ~GAIN_IS_MASK) | (new_input_line << GAIN_IS_SHIFT ));
+	harmony_mixer_set_gain();
+	return new_input_mask;
+}
+
+
+/* 
+ * give the active outlines
+ */
+
+static int harmony_mixer_get_outmask(void)
+{
+	int outmask;
+	
+	outmask=0;
+	
+	if(harmony_mixer->current_gain & GAIN_HE_MASK) outmask |=SOUND_MASK_PHONEOUT;
+	if(harmony_mixer->current_gain & GAIN_LE_MASK) outmask |=SOUND_MASK_LINE;
+	if(harmony_mixer->current_gain & GAIN_SE_MASK) outmask |=SOUND_MASK_SPEAKER;
+	return outmask;
+}
+
+
+
+static int harmony_mixer_set_outmask(int outmask)
+{
+	if(outmask & SOUND_MASK_PHONEOUT) 
+		harmony_mixer->current_gain|=GAIN_HE_MASK; 
+	else harmony_mixer->current_gain&=~GAIN_HE_MASK;
+	if(outmask & SOUND_MASK_LINE) harmony_mixer->current_gain|=GAIN_LE_MASK;
+	else harmony_mixer->current_gain&=~GAIN_LE_MASK;
+	if(outmask & SOUND_MASK_SPEAKER) harmony_mixer->current_gain|=GAIN_SE_MASK;
+	else harmony_mixer->current_gain&=~GAIN_SE_MASK;
+	harmony_mixer_set_gain();
+	return (outmask & (SOUND_MASK_PHONEOUT | SOUND_MASK_LINE | SOUND_MASK_SPEAKER));
+
+}
+
+/*
+ * This code is inspired from sb_mixer.c
+ * It determins actions selected by application
+ */
+
+int harmony_mixer_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg)
+{
+	int val;
+	int ret;
+
+	if (((cmd >> 8) & 0xff) == 'M') {
+		if (_SIOC_DIR(cmd) & _SIOC_WRITE) {
+			if (get_user(val, (int *)arg)) return -EFAULT;
+     
+			switch (cmd & 0xff) {
+			case SOUND_MIXER_RECSRC:
+				ret = harmony_mixer_set_recmask(val);
+				break;
+				
+			case SOUND_MIXER_OUTSRC:
+				ret = harmony_mixer_set_outmask(val);
+				break;
+				
+			default:
+				ret = harmony_mixer_set_level(cmd & 0xff, val);
+			}
+		} else {
+	  
+			switch (cmd & 0xff) {
+				
+			case SOUND_MIXER_RECSRC:
+				ret = harmony_mixer_get_recmask();
+				break;
+				
+			case SOUND_MIXER_OUTSRC:
+				ret = harmony_mixer_get_outmask();
+				break;
+				
+			case SOUND_MIXER_DEVMASK:
+				ret = HARMONY_MIXER_DEVICES;
+				break;
+	      
+			case SOUND_MIXER_STEREODEVS:
+				ret = HARMONY_STEREO_DEVICES;
+				break;
+	      
+			case SOUND_MIXER_RECMASK:
+				ret = HARMONY_RECORDING_DEVICES;
+				break;
+	      
+			case SOUND_MIXER_OUTMASK:
+				ret = HARMONY_OUTPUT_DEVICES;
+				break;
+				
+			case SOUND_MIXER_CAPS:
+				ret = HARMONY_CAPS;
+				break;
+	      
+			default:
+				ret = harmony_mixer_get_level(cmd & 0xff);
+				break;
+			}
+		}
+		return put_user(ret, (int *)arg); 
+	} else
+		return -EINVAL;
+}
+
+static struct file_operations harmony_mixer_fops = {
+	owner:	THIS_MODULE,
+	ioctl: 	harmony_mixer_ioctl,
+};
+
+
+/*
+ * Mute all the output and reset Harmony.
+ */
+
+void harmony_mixer_reset(void)
+{
+	harmony_mixer->current_gain=GAIN_TOTAL_SILENCE;
+	harmony_mixer_set_gain();
+	gsc_writel(1, &harmony_mixer->hpa->reset);
+	udelay(100);
+	gsc_writel(0, &harmony_mixer->hpa->reset);
+}
+
+int harmony_mixer_init(struct harmony_dev * harmony_device)
+{
+  
+	int ret;
+	harmony_mixer=harmony_device;
+  
+	/* Register the device file operations */
+
+	ret=register_sound_mixer(&harmony_mixer_fops,-1);
+	if(ret<0) {
+		printk(KERN_WARNING "Harmony: Error Registering Mixer Driver\n");
+		return -EFAULT;
+	}
+  
+	harmony_mixer_reset();
+  
+	return 0;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony_mixer.h linux/drivers/sound/harmony_mixer.h
--- linux.original/drivers/sound/harmony_mixer.h	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony_mixer.h	Wed Jan 17 22:25:29 2001
@@ -0,0 +1,58 @@
+/*
+ * sound/harmony_mixer.h
+ * 
+ * Definitions for the Harmony mixer
+ */
+/*
+ * Copyright (C) by Matthieu Delahaye 2001
+ *
+ * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
+ * Version 2 (June 1991). See the "COPYING" file distributed with this software
+ * for more info.
+ */
+
+/*
+ * Channels Positions in mixer register
+ */
+
+#define GAIN_HE_SHIFT   27
+#define GAIN_HE_MASK    ( 1 << GAIN_HE_SHIFT) 
+#define GAIN_LE_SHIFT   26
+#define GAIN_LE_MASK    ( 1 << GAIN_LE_SHIFT) 
+#define GAIN_SE_SHIFT   25
+#define GAIN_SE_MASK    ( 1 << GAIN_SE_SHIFT) 
+#define GAIN_IS_SHIFT   24
+#define GAIN_IS_MASK    ( 1 << GAIN_IS_SHIFT) 
+#define GAIN_MA_SHIFT   20
+#define GAIN_MA_MASK    ( 0x0f << GAIN_MA_SHIFT) 
+#define GAIN_LI_SHIFT   16
+#define GAIN_LI_MASK    ( 0x0f << GAIN_LI_SHIFT) 
+#define GAIN_RI_SHIFT   12
+#define GAIN_RI_MASK    ( 0x0f << GAIN_RI_SHIFT) 
+#define GAIN_LO_SHIFT   6
+#define GAIN_LO_MASK    ( 0x3f << GAIN_LO_SHIFT) 
+#define GAIN_RO_SHIFT   0
+#define GAIN_RO_MASK    ( 0x3f << GAIN_RO_SHIFT) 
+
+#define GAIN_TOTAL_SILENCE 0x00F00FFF
+#define GAIN_DEFAULT       0x0F0FF000
+
+#define MAX_OUTPUT_LEVEL (GAIN_RO_MASK >> GAIN_RO_SHIFT)
+#define MAX_INPUT_LEVEL  (GAIN_RI_MASK >> GAIN_RI_SHIFT)
+#define MAX_VOLUME_LEVEL (GAIN_MA_MASK >> GAIN_MA_SHIFT)
+
+
+#define HARMONY_MIXER_DEVICES (SOUND_MASK_OGAIN|SOUND_MASK_IGAIN|SOUND_MASK_VOLUME)
+#define HARMONY_RECORDING_DEVICES (SOUND_MASK_MIC | SOUND_MASK_LINE )
+#define HARMONY_OUTPUT_DEVICES (SOUND_MASK_SPEAKER | SOUND_MASK_LINE | SOUND_MASK_PHONEOUT )
+#define HARMONY_CAPS 1
+#define HARMONY_STEREO_DEVICES (SOUND_MASK_IGAIN | SOUND_MASK_OGAIN)
+
+/*
+ * Channels Mask in mixer register
+ */
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony_sound.c linux/drivers/sound/harmony_sound.c
--- linux.original/drivers/sound/harmony_sound.c	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony_sound.c	Wed Jan 17 22:25:15 2001
@@ -0,0 +1,603 @@
+/* 
+
+ 	drivers/sound/harmony.c 
+
+	This is a sound driver for Lasi's Harmony sound chip.  This is
+	unlikely to be used for anything other than a PA-RISC.
+
+	Harmony is found in HP 712s, 715/new, and many other GSC based machines. 
+Copyright 2000 (c) Linuxcare Canada, Alex deVries <alex@linuxcare.com>
+
+Bugs:
+
+1. Doesn't work on 715/old
+
+This driver doesn't work on 715/old machines, which include the 715/75.  The
+chip used for this is technically called 'Vivace', which is identical to 
+Harmony.  Should be easy to fix.  It has something to do with the way it is
+reported by the inventory code.  The HPA is not that of Lasi or ASP so the
+interrupts aren't registered properly.
+
+3. gain control ioctls are missing
+4. recording is missing
+
+5. Buffer handling code
+
+The three buffer system should probably be changed to use N buffers, so we 
+can load the buffers into memory and then exit.  Shouldn't be too hard, and 
+the performance will be a lot nicer.
+
+6. Clicks at start and finish
+
+I'm not sure why, but somehow I've introduced two clicks at the start and
+two clicks at the finish of each playing.  Shouldn't be too hard to track down.
+
+
+About the rotating buffer
+-------------------------
+
+I'm going to explain how the rotating buffer thing works because I had a hard
+time figuring it out for myself.
+
+At any given time, harmony uses two different buffers.  One is the frame
+that is currently playing, another is the frame that is ready to be played.
+
+Obviously you can't be writing into either of these frames while the chip
+is playing, or you'll hear clicks, pops and out of order frames.  One weekend
+of listening to RMS sing The Free Software Song out of order is a good way to 
+drive this point home.
+
+So, we use a total of three frames.  One is in PLAYING mode, one is is 
+READY_TO_PLAY mode, and the third is either LOADED or EMPTY.  All buffers
+start up by being EMTPY.  When harmony_audio_write loads up two frames,
+interrupts are started and the loop starts.  The ISR pops in the first frame,
+marking it as PLAYING.  The ISR will get called again, and the second 
+frame will be loaded and marked as READY_TO_PLAY.  When the first frame is
+done, the ISR will be called again; frame one is marked as EMPTY to reload,
+frame two is marked PLAYING, frame three is marked READY_TO_PLAY.
+
+All the while, harmony_audio_write is looking for frames marked EMPTY, and
+filling them and marking them LOADED.
+
+Yes, this does actually work.
+
+Let me save you an entire Thursday of listening to "orvalds Linus Linux, I 
+prounouce as Linus This is" by giving you this rotating buffer code.
+
+*/
+
+
+/* 
+   Changeg struct harmony_dev named harmony to 
+   a pointer (named harmony_audio) to the same structure
+   
+   Putted out all access to gain and reset 
+   (harmony_mixer now managed these)
+
+                                  Matthieu Delahaye
+
+*/
+
+
+/* Until we have recording working, this is where we're putting the recording data. */
+
+/* The following is required because of our cache incoherence */
+#include "harmony.h"
+static char graveyard[4096] __attribute__((aligned(4096)));
+
+static unsigned char aligned_buf [4096*(MAX_BUFS+1)] __attribute__ ((aligned (4096))); 
+
+
+
+static int harmony_audio_open(struct inode *inode, struct file *file);
+static int harmony_audio_release(struct inode *inode, struct file *file);
+static loff_t harmony_audio_llseek(struct file *file, loff_t offset, int whence);
+static ssize_t harmony_audio_read(struct file *file,
+                                char *buffer,
+                                size_t count,
+                                loff_t *ppos);
+static ssize_t harmony_audio_write(struct file *file,
+                                 const char *buffer,
+                                 size_t count,
+                                 loff_t *ppos);
+static unsigned int harmony_audio_poll(struct file *file,
+                                     struct poll_table_struct *wait);
+static int harmony_audio_ioctl(struct inode *inode,
+                                struct file *file,
+                                unsigned int cmd,
+                                unsigned long arg);
+static int harmony_audio_mmap(struct file *file, struct vm_area_struct *vma);
+
+
+static void harmony_interrupt(int irq, void *dev, struct pt_regs *regs);
+
+static void harmony_set_control(u8 data_format, u8 sample_rate, u8 stereo_select) ;
+static void harmony_set_format(u8 data_format);
+static void harmony_set_rate(u8 data_rate);
+static int harmony_enable_interrupts(void); 
+static int harmony_disable_interrupts(void);
+static int harmony_silence(unsigned char * buffer,int end, int start);
+
+static struct file_operations harmony_audio_fops = {
+	owner: THIS_MODULE,
+	llseek: harmony_audio_llseek,
+	read: 	harmony_audio_read,
+	write:	harmony_audio_write,
+	poll: 	harmony_audio_poll,
+	ioctl: 	harmony_audio_ioctl,
+	mmap:	harmony_audio_mmap,
+	open: 	harmony_audio_open,
+	release:	harmony_audio_release,
+};
+
+static struct harmony_dev * harmony_audio;
+
+/* This is the PDC signature to load up the driver. */
+
+
+/* This is the callback that's called by the inventory hardware code if
+it finds a match to the registered driver. */
+
+static void harmony_update_control(void) {
+	u32 default_cntl;
+
+	/* Set CNTL */
+	default_cntl = ((1 << 31) |  /* The C bit */
+		(harmony_audio->data_format << 6) |   /* Set the data format */
+		(harmony_audio->stereo_select << 5) |   /* Stereo select */
+		(harmony_audio->sample_rate));        /* Set sample rate */
+
+	/* initialize CNTL */
+	gsc_writel( default_cntl, &harmony_audio->hpa->cntl);
+}
+
+static void harmony_set_control(u8 data_format, u8 sample_rate, u8 stereo_select) {
+
+	harmony_audio->sample_rate = sample_rate;
+	harmony_audio->data_format = data_format;
+	harmony_audio->stereo_select = stereo_select;
+	harmony_update_control();
+}
+static void harmony_set_rate(u8 data_rate) {
+	harmony_audio->sample_rate = data_rate;
+	harmony_update_control();
+}
+
+static void harmony_set_format(u8 data_format) {
+
+	harmony_audio->data_format = data_format;
+	harmony_update_control();
+}
+
+static void harmony_set_stereo(u8 stereo_select) {
+
+	harmony_audio->stereo_select = stereo_select;
+	harmony_update_control();
+}
+
+static int harmony_disable_interrupts(void) {
+	/* Enable interrupts to start playing again */
+	gsc_writel(0,&(harmony_audio->hpa->dstatus)); 
+	return 0;
+}
+
+static int harmony_enable_interrupts(void) {
+	/* Enable interrupts to start playing again */
+	gsc_writel(DSTATUS_IE,&(harmony_audio->hpa->dstatus)); 
+	return 0;
+}
+
+/*
+ * silence()
+ *
+ * This subroutine fills in a buffer starting at location start and
+ * silences for length bytes.  This references the current
+ * configuration of the audio format.
+ *
+ */
+
+static int harmony_silence(unsigned char * buffer,int start, int length) {
+
+	u8 silence_char = 0;
+
+	/* Despite what you hear, silence is different in
+	   different audio formats.  */
+
+	switch (harmony_audio->data_format) {
+		case HARMONY_DF_16BIT_LINEAR: silence_char = 0; break;
+		case HARMONY_DF_8BIT_ULAW:	silence_char = 0x55; break;
+		case HARMONY_DF_8BIT_ALAW:	silence_char = 0xff; break;
+		default: silence_char = 0;
+	}
+
+	memset(aligned_buf+start,silence_char, length);
+	return 0;
+}
+
+
+static int harmony_audio_open(struct inode *inode, struct file *file)
+{
+	int i;
+	u32	cntl;
+
+	/* Clear out the state of all the buffers */
+	for (i=0;i<MAX_BUFS;i++) {
+		harmony_audio->buf_state[i] = HARMONY_BUF_EMPTY;
+	}
+	harmony_audio->frames_so_far = 0;
+	harmony_audio->done = 0;
+	harmony_audio->outstanding_buffers = 0; /* Start off in a balanced mode. */
+	harmony_set_control(HARMONY_DF_8BIT_ULAW,HARMONY_SR_8KHZ,HARMONY_SS_STEREO); 
+
+	/* Clear out all the buffers and flush to cache */
+	harmony_silence(aligned_buf,0,4096*MAX_BUFS);
+	CHECK_WBACK_INV(aligned_buf,4096*MAX_BUFS);
+
+	while((cntl = gsc_readl(&harmony_audio->hpa->cntl)) & CNTL_C);
+
+	return 0;
+}
+
+/*
+ * Release (close) the audio device.
+ */
+
+static int harmony_audio_release(struct inode *inode, struct file *file)
+{
+
+	return 0;
+}
+static loff_t harmony_audio_llseek(struct file *file, loff_t offset, int whence)
+{
+	printk(KERN_ERR "harmony: llseek\n");
+	return -ENODEV;
+}
+
+static ssize_t harmony_audio_read(struct file *file,
+                                char *buffer,
+                                size_t count,
+                                loff_t *ppos)
+{
+	printk(KERN_ERR "harmony: read\n");
+	return -ENODEV;
+}
+
+static int find_free_buffer(void) {
+
+	int i,buf_to_fill_in = -1;
+
+	for (i=MAX_BUFS-1;i>=0;i--) {
+		if (harmony_audio->buf_state[i] == HARMONY_BUF_EMPTY) {
+			buf_to_fill_in = i;
+		}
+	}
+	return buf_to_fill_in;
+}
+
+
+static ssize_t harmony_audio_write(struct file *file,
+                                 const char *buffer,
+                                 size_t size_count,
+                                 loff_t *ppos)
+{
+
+	u32 status;
+	int total_count = (int) size_count;
+	int count = 0;
+	int frame_size;
+	int buf_to_fill_in = 0;
+	long timeout ;
+	int dstatus,cntl;
+	
+	while(count < total_count) {
+
+		/* Wait until we're out of control mode */
+		while ((status = gsc_readl(&(harmony_audio->hpa->cntl))) >> 31); 
+
+		/* Figure out which buffer to fill in */
+		timeout = 0;
+		buf_to_fill_in = HARMONY_BUF_NONE;
+		while ((buf_to_fill_in<0) && (timeout<100000)) {
+			buf_to_fill_in = find_free_buffer();
+			if (buf_to_fill_in < 0) {
+				udelay(10);
+				timeout++;
+			}
+		}
+		if (timeout==100000) {
+			return -1;
+		}
+
+		/* Figure out the size of the frame */
+		if ((total_count - count) > 4095) {
+			frame_size = 4096;
+		} else {
+			frame_size = total_count - count;
+			/* Clear out the buffer, since there we'll only be 
+			   overlaying part of the old buffer with the new one */
+			harmony_silence(aligned_buf,(4096*buf_to_fill_in), 4096);
+		}
+
+		/* Copy the page to an aligned buffer */
+		copy_from_user(aligned_buf+(4096*buf_to_fill_in), buffer,frame_size );
+		CHECK_WBACK_INV(aligned_buf,4096*MAX_BUFS);
+
+		harmony_audio->buf_state[buf_to_fill_in] = HARMONY_BUF_FILLED; 
+
+		harmony_audio->done = 0;
+		count += frame_size;
+
+		if (frame_size < 4096) {
+			count = total_count;
+			harmony_audio->done = 1;
+		}
+
+
+	dstatus = gsc_readl(&harmony_audio->hpa->dstatus);
+
+	cntl = gsc_readl(&harmony_audio->hpa->cntl);
+
+printk("write: buf: %i frame: %i done: %i cntl: 0x%x dstatus: 0x%x\n",buf_to_fill_in,harmony_audio->frames_so_far,harmony_audio->done,cntl,dstatus);
+
+
+
+		if (harmony_audio->frames_so_far == 1) {
+			gsc_writel(__pa(aligned_buf+(4096*0)),&(harmony_audio->hpa->pnxtadd));  
+			gsc_writel(__pa(graveyard),&(harmony_audio->hpa->rnxtadd));  
+			harmony_enable_interrupts();
+		}
+
+		harmony_audio->frames_so_far++;
+	}
+
+	return count;
+}
+static unsigned int harmony_audio_poll(struct file *file,
+                                     struct poll_table_struct *wait)
+{
+	printk(KERN_ERR "harmony: poll\n");
+	return -ENODEV;
+}
+
+#define DBGEV printk
+#define DBGX printk
+#define DBGP
+
+static int harmony_audio_ioctl(struct inode *inode,
+                                struct file *file,
+                                unsigned int cmd,
+                                unsigned long arg)
+{
+
+
+	unsigned long flags;
+	int ival;
+	u32 new_format,newrate;
+	
+	switch (cmd) {
+	case OSS_GETVERSION:		/* _SIOR ('M', 118, int) */
+		DBGX("OSS_GETVERSION\n");
+		ival = SOUND_VERSION;
+		return put_user(ival, (int *) arg);
+
+	case SNDCTL_DSP_GETCAPS:	/* _SIOR ('P',15, int) */
+		DBGX("SNDCTL_DSP_GETCAPS\n");
+		ival = DSP_CAP_DUPLEX | DSP_CAP_BATCH ;
+		return put_user(ival, (int *) arg);
+
+	case SNDCTL_DSP_GETFMTS:	/* _SIOR ('P',11, int) */
+		DBGX("SNDCTL_DSP_GETFMTS\n");
+		ival = (AFMT_S16_BE | AFMT_MU_LAW | AFMT_A_LAW ); 
+		return put_user(ival, (int *) arg);
+		break;
+
+	case SOUND_PCM_READ_RATE:	/* _SIOR ('P', 2, int) */
+/*
+		I have no idea what this should be. 
+*/
+		ival = 0;	
+		return put_user(ival, (int *) arg);
+
+	case SNDCTL_DSP_SPEED:
+
+		if (get_user(ival, (int *) arg))
+			return -EFAULT;
+		if (ival) {
+			switch(ival) {
+				case 8000: newrate = HARMONY_SR_8KHZ; break;
+				case 16000: newrate = HARMONY_SR_16KHZ; break; 
+				case 27428: newrate = HARMONY_SR_27KHZ; break; 
+				case 32000: newrate = HARMONY_SR_32KHZ; break; 
+				case 48000: newrate = HARMONY_SR_48KHZ; break; 
+				case 9600: newrate = HARMONY_SR_9KHZ; break; 
+				case 5125: newrate = HARMONY_SR_5KHZ; break; 
+				case 11025: newrate = HARMONY_SR_11KHZ; break; 
+				case 18900: newrate = HARMONY_SR_18KHZ; break; 
+				case 22050: newrate = HARMONY_SR_22KHZ; break; 
+				case 37800: newrate = HARMONY_SR_37KHZ; break; 
+				case 44100: newrate = HARMONY_SR_44KHZ; break; 
+				case 33075: newrate = HARMONY_SR_33KHZ; break; 
+				case 6615: newrate = HARMONY_SR_6KHZ; break; 
+				default: printk("Could not match rate %d\n",ival); newrate = HARMONY_SR_8KHZ;
+			}
+			harmony_set_rate(newrate);
+		} else {
+			ival = harmony_audio->sample_rate;
+		}
+		return put_user(ival,(int*) arg);
+
+	case SNDCTL_DSP_STEREO:		/* _SIOWR('P', 3, int) */
+		if (get_user(ival, (int *) arg))
+			return -EFAULT;
+		if (ival != 0 && ival != 1)
+			return -EINVAL;
+		harmony_set_stereo(ival);
+		return put_user(ival, (int *) arg);
+
+	case SNDCTL_DSP_GETBLKSIZE:	/* _SIOWR('P', 4, int) */
+		ival = 4096;
+		return put_user(ival, (int *) arg);
+	case SNDCTL_DSP_RESET:
+		return 0;
+
+	case SNDCTL_DSP_SETFMT:		/* _SIOWR('P',5, int) */
+		if (get_user(ival, (int *) arg)) {
+			printk("arg, couldn't get arg\n");
+			return -EFAULT;
+		}
+		if (ival != AFMT_QUERY) {
+			switch (ival) {
+				case AFMT_MU_LAW: new_format = HARMONY_DF_8BIT_ULAW; break;
+				case AFMT_A_LAW:	new_format = HARMONY_DF_8BIT_ALAW; break;
+				case AFMT_U16_BE:	new_format = HARMONY_DF_16BIT_LINEAR; break; 
+				default: {
+					printk("Invalid sound format %d\n",ival);
+					return -EINVAL;
+				}
+			}
+			harmony_set_format(new_format);
+		} else {
+			switch (harmony_audio->data_format) {
+				case HARMONY_DF_8BIT_ULAW: ival = AFMT_MU_LAW; break;
+				case HARMONY_DF_8BIT_ALAW: ival = AFMT_A_LAW; break;
+				case HARMONY_DF_16BIT_LINEAR:	ival = AFMT_U16_BE; break;
+				default: ival = 0;
+			}
+		}
+		return put_user(ival, (int *) arg);
+
+	default:
+		DBGP("------ OH NO unknown ioctl 0x%x\n", cmd);
+		return -EINVAL;
+	}
+	DBGP("unimplemented ioctl 0x%x\n", cmd);
+	return -EINVAL;
+}
+static int harmony_audio_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	printk(KERN_ERR "harmony: mmap\n");
+	return -ENODEV;
+}
+
+static void harmony_interrupt(int irq, void *dev, struct pt_regs *regs)
+{
+	u32 dstatus,pcuradd;
+	struct harmony_hpa * hpa;
+	int i, buf_to_free = 0, curbuf = MAX_BUFS;
+
+	/* Setup the hpa */
+
+	hpa = ((struct harmony_dev *)dev)->hpa;
+	printk(KERN_INFO "Interrupt\n");
+	
+	/* Read dstatus and pcuradd (the current address) */
+	dstatus = gsc_readl(&hpa->dstatus);
+	pcuradd = gsc_readl(&hpa->pcuradd);
+
+	/* Find the last filled buffer */
+	curbuf = MAX_BUFS;
+	for (i=MAX_BUFS-1;i>=0;i--) {
+		if (harmony_audio->buf_state[i]==HARMONY_BUF_FILLED) {
+			curbuf = i;
+		}
+	}
+	if (curbuf == MAX_BUFS) {
+		if (harmony_audio->done) {
+		} else {
+			printk("harmony_interrupt: ack, nothing to play yet.  No available buffer.\n");
+		}
+	}
+
+	/* Turn off interrupts */
+	harmony_disable_interrupts();
+	dstatus = gsc_readl(&hpa->dstatus);
+
+	/* Check if this is a request to get the next play buffer */
+	if(dstatus & DSTATUS_PN) {
+		gsc_writel(__pa(aligned_buf+(4096*curbuf)), &hpa->pnxtadd);
+		harmony_audio->outstanding_buffers++;
+
+		if (!harmony_audio->done) {
+
+			/* Set the volume; we probably don't need to do this. */
+		
+			/* Transition the playing buffer to empty*/
+
+			buf_to_free = -1;
+			for (i=0;i<MAX_BUFS;i++) {
+				if (harmony_audio->buf_state[i]==HARMONY_BUF_PLAYING) {
+					buf_to_free = i;
+				}
+			}
+			if (buf_to_free == -1) {
+			} else {
+				harmony_audio->buf_state[buf_to_free] = HARMONY_BUF_EMPTY;
+			}
+
+			/* Transition the buffers that are ready to be played to playing*/
+
+			buf_to_free = -1;
+
+			for (i=0;i<MAX_BUFS;i++) {
+				if (harmony_audio->buf_state[i]==HARMONY_BUF_READY_TO_PLAY) {
+					buf_to_free = i;
+				}
+			}
+			if (buf_to_free == -1) {
+			} else {
+				harmony_audio->buf_state[buf_to_free] = HARMONY_BUF_PLAYING;
+			}
+			harmony_audio->buf_state[curbuf] = HARMONY_BUF_READY_TO_PLAY;
+
+			harmony_enable_interrupts();
+		}
+	}
+
+	/* Check if we're being asked to fill in a recording buffer */
+	if(dstatus & DSTATUS_RN) {
+
+		/* Not supported yet */
+		gsc_writel(__pa(graveyard) , &hpa->rnxtadd);
+		harmony_audio->outstanding_buffers--;
+	}
+	if (harmony_audio->done && (!harmony_audio->outstanding_buffers)) {
+		harmony_disable_interrupts();	
+	}
+}
+
+
+
+int harmony_audio_init(struct harmony_dev * harmony_device)
+{
+   int ret;
+   int cntl;
+   
+   harmony_audio=harmony_device;
+   
+	/* Request that IRQ */
+	request_irq(harmony_audio->irq, &harmony_interrupt, 0 ,"harmony", (void *) harmony_audio);
+
+   	ret = register_sound_dsp(&harmony_audio_fops, -1);
+	if (ret < 0) {
+		printk("Harmony: Error registering\n");
+		return -EFAULT;
+	}
+	harmony_set_control(HARMONY_DF_8BIT_ULAW,HARMONY_SR_8KHZ,HARMONY_SS_STEREO);
+
+	/* Clear the buffers so you don't end up with crap in the buffers. */ 
+
+	harmony_silence(aligned_buf,0,4096*MAX_BUFS);
+
+	/* Make sure this makes it to cache */
+	CHECK_WBACK_INV(aligned_buf,4096*MAX_BUFS);
+
+
+	/* Wait around until we're out of control mode */
+	while((cntl = gsc_readl(&harmony_audio->hpa->cntl)) & CNTL_C);
+	return 0;
+	
+	
+}
+
+
+

--------------72A8A284674098C68F7C5063--


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Oust HPPA PIC_OFFSET_TABLE_REGNUM_SAVED
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Cc: alan@linuxcare.com.au, rth@redhat.com, gcc-patches@gcc.gnu.org,
        parisc-linux@puffin.external.hp.com
To: law@redhat.com
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>   In message <200101171622.LAA13215@hiauly1.hia.nrc.ca>you write:
>   > I think all these problems can be resolved by emitting the insn at the
>   > first call.  We just have to keep track of whether it has been emitted
>   > or not.
> I'm not entirely sure what you mean by this.
> 
> We must emit the code to restore the PIC register after each call when
> generating PIC code.  There are no known exceptions to this rule.
>
> You might be talking about saving the PIC register into the stack or
> pseudo during the prologue.  Yes, we could arrange to do that if and
> only if we had a call in PIC mode.  That's fairly easy to do.

Yes, I am talking about saving the pic register just before the first call
insn rather than in the prologue.  This way we know that the save is needed
and we don't have to worry about whether the pseudo that is initially
generated for it gets a hard register or not.  If there are no calls, the
insn won't be emitted.  The insn can also be eliminated if reload decides
to use the stack saved value of the PIC register for restoration of the PIC
register after calls.  The 32 bit ABI saves it to the stack under almost
all circumstances.

We just need to add a flag to Alan's machine structure, initialize it
when the structure is created, and test it before each call insn.  If it
is 0, we save the PIC register and set the flag.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Matthieu Delahaye <delahaym@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Lasi harmony driver with mixer
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Alex deVries wrote:

> Matthieu, it's good to hear about the gain control patches.  Now go sort
> out the 16 bit audio format problem! :)
>

Ok. We now start working on 16 bit audio (and others formats).
More over we'll have a look on the two unexpeted clicks at the begining
of each sound resitution.

Matthieu Delahaye
ESIEE Team
http://www.esiee.fr/puffin


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From: Alex deVries <adevries@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Creating a bootable image.
Date: Tue, 1 Jun 1999 00:33:05 -0400 (EDT)
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I'm mailing this because I'm not entirely sure what I'm doing is correct.

The way I understand it, the kernel we cross compile on Linux is in fact
a broken ELF32 file, which doesn't really matter, because at this point we
don't need the kernel to have any loader information itself.  My theory is
that the kernel itself can be cross compiled properly regardless of how
messed our loader formats are.

However, to actually boot you need IPL, which requires SOM linking, so
that much must be done on HPUX.

What I'm doing is to add a binary prebuilt version of IPL into the kernel
source tree, and enough glue so you can just do:

make bootable

and it'll create a kernel and boot header that should just boot right
away.  That way to do kernel work (and not bootstrap work), you don't need
HPUX at all.

Does that make sense?

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New XC available (was Re: glibc build failing)
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Richard Hirst writes...

> Guess this is for Alan and Matt really...
> 
> I am trying to build glibc using todays cvs main branch.  Building on
> x86 for parisc.  This is what I do:
[snip]
> And this is what happens...
[snip]
> ../sysdeps/generic/glob.c: In function `glob_in_dir':
> ../sysdeps/generic/glob.c:1446: Internal compiler error in eliminate_regs, at
>  reload1.c:2505
>    Please submit a full bug report.
>    See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
> make[2]: *** [/mnt/parisc/xc/build/glibc/posix/glob.o] Error 1
> make[2]: Leaving directory `/mnt/parisc/xc/source/glibc/posix'
> make[1]: *** [posix/subdir_lib] Error 2
> make[1]: Leaving directory `/mnt/parisc/xc/source/glibc'
> make: *** [install] Error 2

Yes I saw the same thing.

> The change that seems to have triggered this is in glibc/Makeconfig, 
> to build with -O2 rather that -O

Yeah it looks like this segment,

348 ifeq ($(release),stable)
349 default_cflags := -g -O2
350 else
351 default_cflags := -g -O
352 endif

Up till this merge we were still running bits from September 25th which didn't 
have a "stable" number. So someone needs to make our glibc -O2 clean.

OK, I switched to -O and built a new xc(x86->hppa). I was able to build/boot a 
kernel, and build/run a hello world program. The new xc is at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20010117.tar.gz

Please let me know if you have any problems with it.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP E55 server (model 9000/856) // PDC console ?
Date: Thu, 18 Jan 2001 00:58:55 +0100
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Hello HP hackers !

I have beside the HP apollo 700 series (9000/720) a
server machine, the HP E55 (model 9000/856). As far as I saw
on the hardware page of the puffin group, the SCSI controller
and the multi-port serial is not supported.

Is this really so ? 
Is there a solution for that ?

I also want to cantact HP for documentation.


Is there a possibility to use the PDC console as system console.
Now the kernel says
	Switching from PDC console
and no further output is there, as the PDC console runs on the
port-0 of the serial multi-port board. If I can continue to use
the PDC console, I can perhaps try to boot NFS !

With friendly regards
	Christoph


-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at


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Hello again !

I have the exactly same problem with the 0.5 image (cd), as I tried
to use this as root file system vie NFS. I got the same error message.
And to boot the CD, the system crashes inside the kernel stuff, 
perhaps in connection with the parallel port.

The SCSI problem is no problem at this point. I want to have
one time a bash, I never got it, although I am experiented in setting
Linux and UNIX boxes, have experiences in the Netboot/Etherboot stuff
and I also installed Linux on a SUN, etc....

Here I seem to have a special problem. Is my machine unable to 
run any code of this.
The other HP is a E55 (9000/856) server, but the multi-port serial
and the SCSI is not supported in the Linux (yet, or forever). So I
cannot boot this machine, as the first serial line of this multi-port
board is the serial console (and the only console of this machine).
So the last kernel message I see is:
	Switching from PDC console

I hope anybody can help here

	Christoph



Grant Grundler wrote:
> 
> Christoph Plattner wrote:
> > The SCSI probing has a problem with the device ID0, a floppy on a
> > SCSI adapter. Ok, forget it.
> 
> Don't forget. That should respond like a standard SCSI device.
> Is the device known to work and the SCSI bus configuration ok?
> 
> > Warning: unable to open an initial console.
> 
> This is typically a problem with "console" parameter passed to Palo.
> (boot loader).  Check the mail archive for comments about CONFIG_STI_CONSOLE
> (and CONFIG_SERIAL_CONSOLE) and "console" parameter in
> the palo Makefile.
> 
> > Can you give me a short explanation of this dump.
> > On the HP I don't know the registers (on intel I do !).
> > Which describes the instrunction pointer to have a look
> > in the System.map. Is this IIR ?
> 
> IOAQ. GR02 is the return ptr.
> See devresources.hp.com or www.parisc-linux.org for PA 1.1 Arch docs.
> 
> > The init I tried (the last attempt) was a fresh build `init'
> > from the init-2.77 package with the cross compiler by setting
> > the CC= varibale. The build could be done and a check with the
> > command `file' described the correct image.
> 
> You might try downloading and pulling the init from palinux-v0.5.iso.
> 
> > What is this for a problem ???
> >
> > I will add the complete boot log below.
> >
> > Trying scsi.4.0
> > Boot path initialized.
> > Attempting to load IPL.
> >
> >
> > Hard booted.
> > palo ipl root@didymos.pladom1.at Sun Jan 14 12:44:07 CET 2001
> > 0/vmlinux 2106807 bytes @ 0x6800
> > 0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs
> > nfsroot=196.1.1.20:/tf
> > tpboot/apollo/root console=ttyS0'
> > Kernel: partition 0 file /vmlinux
> > ELF32 executable
> >
> > Entry 00100150 first 00000000 n 3
> > Segment 0 load 00000000 size 288 mediaptr 0x1000
> > Segment 1 load 00100000 size 1409924 mediaptr 0x2000
> > Segment 2 load 0025a000 size 294912 mediaptr 0x15b000
> > branching to kernel entry point 0x00100150
> > PDC Console Initialized
> > The 32-bit Kernel has started...
> > Enabled FP coprocessor
> > Free memory starts at: 0xc02cb000
> > start_parisc(0x504d70,0x504d70,0x0,0x0)
> > PALO command line: 'HOME=/ TERM=linux root=/dev/nfs
> > nfsroot=196.1.1.20:/tftpboot
> > /apollo/root console=ttyS0'
> > PALO initrd 0-0
> > model   00002000 00000481 00000000 00000000 0234072e 000011f4 00000004
> > 0000000d
> > 00000000
> > vers    00000003
> > CPUID   vers 0 rev 0
> > model   9000/720
> > led_init: CPU_HVERSION 200
> > Searching for devices in PDC firmware... processor hpa 0xfffbe000
> >  an older box...
> > Found devices:
> > 1. Coral SGC Graphics (10) at 0xf8000000, versions 0x4, 0x0, 0x77, 0x0,
> > 0x0
> > 2. Cobra Core BA (11) at 0xf082f000, versions 0x4, 0x0, 0x70, 0x0, 0x0
> > 3. Cobra Core SCSI (10) at 0xf0825000, versions 0x4, 0x0, 0x71, 0x0, 0x0
> > 4. Cobra Core LAN (802.3) (10) at 0xf0826000, versions 0x4, 0x0, 0x72,
> > 0x0, 0x0
> > 5. Cobra Core HIL (10) at 0xf0821000, versions 0x4, 0x0, 0x73, 0x0, 0x0
> > 6. Cobra Core RS-232 (10) at 0xf0823000, versions 0x4, 0x0, 0x75, 0x0,
> > 0x0
> > 7. Cobra Core RS-232 (10) at 0xf0822000, versions 0x4, 0x0, 0x75, 0x0,
> > 0x0
> > 8. Cobra Core Centronics (10) at 0xf0824000, versions 0x4, 0x0, 0x74,
> > 0x0, 0x0
> > 9. Cobra (720) (0) at 0xfffbe000, versions 0x200, 0x0, 0x4, 0x0, 0x81
> > 10. Cobra (1) at 0xfffbf000, versions 0x13, 0x0, 0x9, 0x0, 0x0
> > That's a total of 10 devices.
> > CPU(s): 1 x PA7000 (PCX-S) at 50.000000 MHz
> > Linux version 2.4.0-test10 (root@didymos.pladom1.at) (gcc version 2.96
> > 20000925
> > (experimental)) #2 Sun Jan 14 13:11:36 CET 2001
> > free_bootmem(0x2cb800, 0x3d34800)
> > initrd: 00000000-00000000
> > pagetable_init
> > On node 0 totalpages: 16384
> > zone(0): 8192 pages.
> > zone(1): 8192 pages.
> > zone(2): 0 pages.
> > Kernel command line: HOME=/ TERM=linux root=/dev/nfs
> > nfsroot=196.1.1.20:/tftpboot/apollo/root console=ttyS0
> > trap_init
> > Error reading tod clock
> > Calibrating delay loop... 49.77 BogoMIPS
> > Memory: 61512k available
> > Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
> > Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
> > Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
> > Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
> > POSIX conformance testing by UNIFIX
> > ASP version 1 at 0xf0800000 found.
> > LED (ASP-style) display at 00000000 registered
> > Found i82596 at 0xf0826000, IRQ 87
> > early initialization of device eth0 is deferred
> > Linux NET4.0 for Linux 2.4
> > Based upon Swansea University Computer Society NET3.039
> > Starting kswapd v1.8
> > pty: 256 Unix98 ptys configured
> > RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> > loop: enabling 8 loop devices
> > 82596.c: MAC of HP700 LAN blindely read from the prom!
> > eth0: Couldn't get consistent shared memory
> > eth0: 82596 at 0xf0826000, 08 00 09 24 64 06 IRQ 87.
> > 82596.c $Revision: 1.14 $
> > Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ
> > SERIAL_PCI ena
> > bled
> > ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
> > ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
> > Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
> > SCSI subsystem driver Revision: 1.00
> > sim700: Couldn't get consistent shared memory
> > sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86
> > scsi0: Revision 0x0
> > Post test1, istat 05, sstat0 00, dstat 84
> > sim700: WARNING IRQ probe failed, (returned 0)
> > scsi0: WARNING: target data areas are not dma coherent!
> > scsi0: test 1 completed ok.
> > scsi0 : LASI/Simple 53c7xx
> > scsi0: Unable to abort command for target 0
> > scsi0: Unable to send Bus Device Reset for target 0
> > scsi0: Unable to do SCSI bus reset
> > scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> > scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
> > scsi0: dsp = 03f98058 (script[0x0016]), dsps = 03f98cee, target = 0
> > scsi0: Failing command for ID0
> > scsi0: Unable to abort command for target 0
> > scsi0: Unable to abort command for target 1
> > scsi0: Unable to send Bus Device Reset for target 1
> > scsi0: Unable to do SCSI bus reset
> > scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> > scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
> > scsi0: dsp = 03f98058 (script[0x0016]), dsps = 03f98cee, target = 0
> > scsi0: Failing command for ID0
> >   Vendor: SEAGATE   Model: ST1480   SUN0424  Rev: 7516
> >   Type:   Direct-Access                      ANSI SCSI revision: 02
> >   Vendor: QUANTUM   Model: PD425S            Rev: 535A
> >   Type:   Direct-Access                      ANSI SCSI revision: 02
> > Detected scsi disk sda at scsi0, channel 0, id 4, lun 0
> > Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
> > SCSI device sda: 843284 512-byte hdwr sectors (432 MB)
> > Partition check:
> >  sda: unknown partition table
> > SCSI device sdb: 833150 512-byte hdwr sectors (427 MB)
> >  sdb: unknown partition table
> > NET4: Linux TCP/IP 1.0 for NET4.0
> > IP Protocols: ICMP, UDP, TCP
> > IP: routing cache hash table of 512 buckets, 4Kbytes
> > TCP: Hash tables configured (established 4096 bind 4096)
> > eth0: link ok.
> > Sending BOOTP requests.... OK
> > IP-Config: Got BOOTP answer from 196.1.1.20, my address is 196.1.1.110
> > NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> > kmem_create: Forcing size word alignment - nfs_fh
> > Looking up port of RPC 100003/2 on 196.1.1.20
> > Looking up port of RPC 100005/2 on 196.1.1.20
> > VFS: Mounted root (nfs filesystem) readonly.
> > Warning: unable to open an initial console.
> >
> > handle_interruption() pid=1 command='init'
> >
> >      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > PSW: 00000000000001001000000100001011
> > r0-3     00000000 40019b48 40002dfb 40001504
> > r4-7     40019b48 40000384 4000ec30 400198f4
> > r8-11    bb000148 40002d4c 400002f4 00000000
> > r12-15   00000081 00000080 bb0002f0 bb000048
> > r16-19   00000000 c02a0640 00000000 40019b48
> > r20-23   00000041 40000000 40000000 00000000
> > r24-27   40000000 00000001 bb000148 c011a800
> > r28-31   00000021 bb000148 bb0003c0 40002daf
> > sr0-3    00000000 00000000 00000000 0000ffff
> > sr4-7    00000001 00000001 00000001 00000001
> >
> > IASQ: 00000001 00000001 IAOQ: 40003393 40003397
> >  IIR: 0ce61280    ISR: 00000001  IOR: 400198f4
> > ORIG_R28: 00000000
> >
> > handle_interruption() pid=1 command='init'
> >
> >      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > PSW: 00000000000001001000000100001011
> > r0-3     00000000 40019b48 40002dfb 40001504
> > r4-7     40019b48 40000384 4000ec30 400198f4
> > r8-11    bb000148 40002d4c 400002f4 00000000
> > r12-15   00000081 00000080 bb0002f0 bb000048
> > r16-19   00000000 c02a0640 00000000 40019b48
> > r20-23   00000041 40000000 40000000 00000000
> > r24-27   40000000 00000001 bb000148 c011a800
> > r28-31   00000021 bb000148 bb0003c0 40002daf
> > sr0-3    00000000 00000000 00000000 0000ffff
> > sr4-7    00000001 00000001 00000001 00000001
> >
> > IASQ: 00000001 00000001 IAOQ: 40003393 40003397
> >  IIR: 0ce61280    ISR: 00000001  IOR: 400198f4
> > ORIG_R28: 00000000
> >
> > :
> > :
> > : ... and so on ...
> >
> >
> >
> > -------------------------------------------------------------------------
> > private:        christoph.plattner@dot.at
> > company:        christoph.plattner@alcatel.at
> >
> > ---------------------------------------------------------------------------
> > To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> > `unsubscribe' as the subject.
> >
> 
> Grant Grundler
> Unix Systems Enablement Lab
> +1.408.447.7253
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at


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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: Re: [parisc-linux] booting 742
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> Only vaguely - A seperate group in HP supports/developes the "industrial"
> workstations since they run RTE (not HPUX) on them. AFAIK, many of those
> boxes are similar to B-class workstations w/PXC-L or -L2. I have no clue
> how the VME bus is supported - ie bus interface chip or such.

No, they do not run RTE. I don't think RTE ever ran on a parisc box
natively, although I believe there were some translator/emulator
code that allowed RTE binaries to run on parisc.

The 74x series boxes all ran both HP-UX and HP-UX/RT. HP-UX/RT is
probably what you were thinking of. It was a third party based real
time unix variant that HP modified to support some level of binary
compatibility with HP-UX.

They very definitely had a normal PDC and you should at least be able to
get serial output (as long as you set the console to serial) until the
Linux kernel switches from the PDC console.  As Matthew has already
mentioned, the 742 is pretty similar to a 715, so I think you should be
able to get serial output beyond that point as long as you have configured
the kernel for serial console.

I don't have any information regarding the VME bus. I believe there was
another HP proprietary bus bridge chip that would need to be programmed.

John


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Subject: Re: [parisc-linux] booting 742
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John Marvin wrote:

> The 74x series boxes all ran both HP-UX and HP-UX/RT.
> HP-UX/RT is probably what you were thinking of.

it was - sorry.

thanks,
grant


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>   In message <200101171622.LAA13215@hiauly1.hia.nrc.ca>you write:
>   > I think all these problems can be resolved by emitting the insn at the
>   > first call.  We just have to keep track of whether it has been emitted
>   > or not.
> I'm not entirely sure what you mean by this.
> 
> We must emit the code to restore the PIC register after each call when
> generating PIC code.  There are no known exceptions to this rule.
> 
> You might be talking about saving the PIC register into the stack or
> pseudo during the prologue.  Yes, we could arrange to do that if and
> only if we had a call in PIC mode.  That's fairly easy to do.

I think this will make what I was saying clearer.  This doesn't suffer
from the problem that the original implementation had because it doesn't
use a global variable.  Bootstrap is now in the latter part of stage 2.
I looked at the assembly code generated for a function with one call
and it seemed fine.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2001-01-17  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa.c (pa_init_machine_status): Initialize
	p->machine->pic_offset_table_reg_saved.
	(hppa_expand_prologue): Remove code to save pic offset table register.
	* pa.h (machine_function): Add member pic_offset_table_reg_saved.
	(PIC_OFFSET_TABLE_SAVE_RTX): Correct typo in comment.
	(PIC_OFFSET_TABLE_REG_SAVED): Define.
	(EPILOGUE_USES): Define to keep the pic offset table register live.
	* pa.md (call, call_value): Add code to save the pic offset table
	register when necessary.

--- pa.c.orig	Wed Jan 17 01:46:52 2001
+++ pa.c	Wed Jan 17 19:09:38 2001
@@ -207,6 +207,7 @@
   p->machine = (machine_function *) xmalloc (sizeof (machine_function));
 
   p->machine->pic_offset_table_save_rtx = gen_reg_rtx (Pmode);
+  p->machine->pic_offset_table_reg_saved = 0;
 }
 
 static void
@@ -3186,25 +3187,6 @@
 	    }
 	}
     }
-
-  /* When generating PIC code it is necessary to save/restore the
-     PIC register around each function call.  We used to do this
-     in the call patterns themselves, but that implementation
-     made incorrect assumptions about using global variables to hold
-     per-function rtl code generated in the backend.
-
-     So instead, we copy the PIC register into a callee saved register
-     in the prologue.  Then after each call we reload the PIC register
-     from the callee saved register.
-
-     Avoid doing this if the register isn't used (eg. leaf functions)
-     as it's an error to delete an instruction from the prologue.  */
-
-  if (flag_pic
-      && (GET_CODE (PIC_OFFSET_TABLE_SAVE_RTX) != REG
-	  || HARD_REGISTER_P (PIC_OFFSET_TABLE_SAVE_RTX)))
-    emit_move_insn (PIC_OFFSET_TABLE_SAVE_RTX,
-		    gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM));
 }
 
 
--- pa.h.orig	Wed Jan 17 18:52:09 2001
+++ pa.h	Wed Jan 17 19:05:02 2001
@@ -76,6 +76,7 @@
 typedef struct machine_function
 {
   struct rtx_def *pic_offset_table_save_rtx;
+  int pic_offset_table_reg_saved;
 } machine_function;
 
 /* For -march= option.  */
@@ -500,10 +501,14 @@
 #define PIC_OFFSET_TABLE_REGNUM (TARGET_64BIT ? 27 : 19)
 #define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED 1
 
-/* Register into which we save the PIC_OFFEST_TABLE_REGNUM so that it
+/* Register into which we save the PIC_OFFSET_TABLE_REGNUM so that it
    can be restored across function calls.  */
 #define PIC_OFFSET_TABLE_SAVE_RTX (cfun->machine->pic_offset_table_save_rtx)
 
+/* Flag to indicate whether the pic offset table register has been saved
+   in a function.  */
+#define PIC_OFFSET_TABLE_REG_SAVED (cfun->machine->pic_offset_table_reg_saved)
+
 #define DEFAULT_PCC_STRUCT_RETURN 0
 
 /* SOM ABI says that objects larger than 64 bits are returned in memory.
@@ -918,6 +923,12 @@
 #define FUNCTION_EPILOGUE(FILE, SIZE)			\
   output_function_epilogue (FILE, SIZE)
 
+/* Define this macro as a C expression that is nonzero for registers
+   used by the epilogue or the `return' pattern.  */
+
+#define EPILOGUE_USES(REGNO) \
+  ((REGNO) == 2 || (flag_pic && (REGNO) == PIC_OFFSET_TABLE_REGNUM))
+
 /* Output assembler code for a block containing the constant parts
    of a trampoline, leaving space for the variable parts.\
 
--- pa.md.orig	Wed Jan 17 01:46:53 2001
+++ pa.md	Wed Jan 17 19:31:57 2001
@@ -5712,6 +5712,13 @@
 		    gen_rtx_PLUS (word_mode, virtual_outgoing_args_rtx,
 				  GEN_INT (64)));
 
+  if (flag_pic && ! PIC_OFFSET_TABLE_REG_SAVED)
+    {
+      emit_move_insn (PIC_OFFSET_TABLE_SAVE_RTX,
+		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM));
+      PIC_OFFSET_TABLE_REG_SAVED = 1;
+    }
+
   /* Use two different patterns for calls to explicitly named functions
      and calls through function pointers.  This is necessary as these two
      types of calls use different calling conventions, and CSE might try
@@ -5882,6 +5889,13 @@
 		    gen_rtx_PLUS (word_mode, virtual_outgoing_args_rtx,
 				  GEN_INT (64)));
 
+  if (flag_pic && ! PIC_OFFSET_TABLE_REG_SAVED)
+    {
+      emit_move_insn (PIC_OFFSET_TABLE_SAVE_RTX,
+		      gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM));
+      PIC_OFFSET_TABLE_REG_SAVED = 1;
+    }
+
   /* Use two different patterns for calls to explicitly named functions
      and calls through function pointers.  This is necessary as these two
      types of calls use different calling conventions, and CSE might try


From - Thu Nov 08 21:15:13 2018
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X-Mozilla-Keys:                                                                                 
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From: "arete@libero.it"<arete@libero.it>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] No booting 715 old
Date: Thu, 18 Jan 2001 14:21:33 +0100
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I have an 715/50 , with PDC rom 1.3 and IODC rom 1.1
i use the palinux-0.5.iso image
  and recive this messages


.....

IASQ:00000000 IAOQ:c01c5280 c015280
IIR:c840c00 ISR: 00000000 IOR:c02773f0
ORIG_R28:00000000





From - Thu Nov 08 21:15:13 2018
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X-Mozilla-Keys:                                                                                 
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From: "Jim Buttafuoco" <jim@tylerdrive.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Trouble booting a 710 (bushmaster)
Date: Thu, 18 Jan 2001 10:17:24 -0500 (EST)
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This is a multi-part message in MIME format.

------=NEOMAIL_ATT_0.399137031826289
Content-Type: text/plain; charset=iso-8859-1

Hi,

I have been trying to get my 2 9000/710's to boot for a couple of months
now.  Attached is the latest log file from my boot. 

The 2 problems that I see are the ramdisk is NOT seen and the BOOTP
fails.  I have used TCPDUMP to look at the packets coming and going from
the system.  All I see is the RBOOTP stuff.  The ramdisk is valid as far
as I can tell. (I mounted it via the loop fs).  Should it be compressed
with ZIP???.

The kernel/palo source is the latest as of 1/17/01.  

Any help is welcome....

Thanks
Jim



------=NEOMAIL_ATT_0.399137031826289
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From: bame@riverrock.org
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trouble booting a 710 (bushmaster)
Date: Thu, 18 Jan 2001 10:54:35 -0700
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To: "Jim Buttafuoco" <jim@tylerdrive.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:9275

= Hi,
= 
= I have been trying to get my 2 9000/710's to boot for a couple of months
= now.  Attached is the latest log file from my boot. 
= 
= The 2 problems that I see are the ramdisk is NOT seen and the BOOTP
= fails.  I have used TCPDUMP to look at the packets coming and going from
= the system.  All I see is the RBOOTP stuff.  The ramdisk is valid as far
= as I can tell. (I mounted it via the loop fs).  Should it be compressed
= with ZIP???.
= 
= The kernel/palo source is the latest as of 1/17/01.  

= Loading ramdisk 1544116 bytes @ 0051c000...
= [...]

Looks like you're using a compressed ramdisk.  That should work, but
it's worth trying an uncompressed one.

= RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
= 82596.c: MAC of HP700 LAN blindely read from the prom!
= eth0: Couldn't get consistent shared memory
= eth0: 82596 at 0xf0826000, 08 00 09 25 DD 7B IRQ 87.
= 82596.c $Revision: 1.14 $
= RAMDISK: Couldn't find valid RAM disk image starting at 0.

Yeah, try an uncompressed ramdisk.  EXT2

= [...]
= NET4: Linux TCP/IP 1.0 for NET4.0
= IP Protocols: ICMP, UDP, TCP
= IP: routing cache hash table of 512 buckets, 4Kbytes
= TCP: Hash tables configured (established 2048 bind 2048)
= Sending BOOTP requests............. timed out!
= IP-Config: Auto-configuration of network failed.
= Trying to free nonexistent resource <f0826000-f082600b>
= NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
= kmem_create: Forcing size word alignment - nfs_fh
= Kernel panic: VFS: Unable to mount root fs on 01:00

No clue about your bootp problem...

	-P


From - Thu Nov 08 21:15:14 2018
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From: "Jim Buttafuoco" <jim@tylerdrive.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trouble booting a 710 (bushmaster)
Date: Thu, 18 Jan 2001 13:12:50 -0500 (EST)
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Ok,

I tried the uncompressed ramdisk, same results.  I am going to try to 
debug this issue first by putting some debug code in rd.c.  I will keep 
you posted...

ANY more suggestions????

Thanks again
Jim


> = Hi,
> = 
> = I have been trying to get my 2 9000/710's to boot for a couple of 
months
> = now.  Attached is the latest log file from my boot. 
> = 
> = The 2 problems that I see are the ramdisk is NOT seen and the BOOTP
> = fails.  I have used TCPDUMP to look at the packets coming and going 
from
> = the system.  All I see is the RBOOTP stuff.  The ramdisk is valid 
as far
> = as I can tell. (I mounted it via the loop fs).  Should it be 
compressed
> = with ZIP???.
> = 
> = The kernel/palo source is the latest as of 1/17/01.  
> 
> = Loading ramdisk 1544116 bytes @ 0051c000...
> = [...]
> 
> Looks like you're using a compressed ramdisk.  That should work, but
> it's worth trying an uncompressed one.
> 
> = RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 
blocksize
> = 82596.c: MAC of HP700 LAN blindely read from the prom!
> = eth0: Couldn't get consistent shared memory
> = eth0: 82596 at 0xf0826000, 08 00 09 25 DD 7B IRQ 87.
> = 82596.c $Revision: 1.14 $
> = RAMDISK: Couldn't find valid RAM disk image starting at 0.
> 
> Yeah, try an uncompressed ramdisk.  EXT2
> 
> = [...]
> = NET4: Linux TCP/IP 1.0 for NET4.0
> = IP Protocols: ICMP, UDP, TCP
> = IP: routing cache hash table of 512 buckets, 4Kbytes
> = TCP: Hash tables configured (established 2048 bind 2048)
> = Sending BOOTP requests............. timed out!
> = IP-Config: Auto-configuration of network failed.
> = Trying to free nonexistent resource <f0826000-f082600b>
> = NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> = kmem_create: Forcing size word alignment - nfs_fh
> = Kernel panic: VFS: Unable to mount root fs on 01:00
> 
> No clue about your bootp problem...
> 
> 	-P
> 
> ----------------------------------------------------------------------
-----
> To unsubscribe: send e-mail to parisc-linux-
request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 
> 



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From: Philipp Rumpf <prumpf@suse.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Creating a bootable image.
Date: Tue, 1 Jun 1999 09:16:01 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:9277

> I'm mailing this because I'm not entirely sure what I'm doing is correct.

Neither am I, but arch/parisc/hp/boot/README seems to say something different.

> The way I understand it, the kernel we cross compile on Linux is in fact
> a broken ELF32 file, which doesn't really matter, because at this point we
> don't need the kernel to have any loader information itself. 

I think we should build a binary image of the kernel (that is not ELF) like
we do for x86.

> However, to actually boot you need IPL, which requires SOM linking, so
> that much must be done on HPUX.

This I do not understand. According to arch/parisc/hp/boot/README, the IPL is
stored in a special binary format which we could generate from ELF like we
do for the kernel image.

> and it'll create a kernel and boot header that should just boot right
> away.  That way to do kernel work (and not bootstrap work), you don't need
> HPUX at all.

I think the vast majority of parisc boxes runs HP-UX at the moment so it
probably would not be a big win.

	Philipp Rumpf


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From: "Phillip D. Beal" <pdbeal@louisville.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] NFS Root / System
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Hey,

Is there a new version of the NFS root system?  The latest I've found
was by stealing the filesystem from the palo-0.5 cd image, and before
that was from 20000915, I think....   Also, does anyone know where I can
find apt-get for binary-hppa?  Or the source to attempt to compile it?

Thanks,
-- 
Phillip Beal                           ___           _               _   
Electrical and Computer Engineering   | _ ) ___ __ _| |___  _ _  ___| |_ 
pdbeal@louisville.edu                 | _ \/ -_) _` | |_ /_| ' \/ -_)  _|
http://www.bealz.net/                 |___/\___\__,_|_/__(_)_||_\___|\__|


From - Thu Nov 08 21:15:14 2018
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From: bame@riverrock.org
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Subject: Re: [parisc-linux] NFS Root / System
Date: Thu, 18 Jan 2001 12:13:57 -0700
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= Hey,
= 
= Is there a new version of the NFS root system?  The latest I've found
= was by stealing the filesystem from the palo-0.5 cd image, and before
= that was from 20000915, I think....   Also, does anyone know where I can
= find apt-get for binary-hppa?  Or the source to attempt to compile it?

There's no newer NFS root right now, though a new one is probably
coming.  I've mostly been updating using the .debs at
ftp://puffin.external.hp.com/pub/ including the apt-get one.

Please be aware that we will likely totally break binary compatibility
someday, and may not have a user-friendly upgrade path :-)

	-P


From - Thu Nov 08 21:15:14 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] The Art Of Locking
Date: Thu, 18 Jan 2001 19:24:52 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:9280

On Thu, Jan 18, 2001 at 11:25:24AM -0700, Grant Grundler wrote:
> Log message:
> First cut of CONFIG_SMP support. Default is disabled and my C3k
> still boots/works that way. With CONFIG_SMP=y, hangs after kswapd
> msg. Willy tells me that's the first place semaphores are used.

I'm reviewing this code for Grant.  He's kindly allowed me to point out 
the flaws publically for the benefit of all.

First, Rusty has written an excellent document on locking in
Documentation/Docbook/kernel-locking.tmpl.  You can turn this into a
pdf with `make pdfdocs' (other formats are also available).

Here's the code grant wrote in irq.c:

spinlock_t irq_lock = SPIN_LOCK_UNLOCKED;  /* protect IRQ regions */
[...]
        for (regnr = 0; regnr < NR_IRQ_REGS; regnr++) {
           spin_lock_irqsave(&irq_lock, flags);
            region = irq_region[regnr];
           if (!region || !region->action) {
               spin_unlock_irqrestore(&irq_lock, flags);
                continue;
           }
[...]
           spin_unlock_irqrestore(&irq_lock, flags);
       }

The first thing is the use of spin_lock_irqsave.  This disables local
interrupts and takes the spinlock.  However, this code can't be called
from interrupt context, and nor can any of the other places which take
this lock.  So there's no need to disable local irqs.  We _are_ messing
with the irq tables at this point (though read-only), but that either means
that we have to do a _global_ interrupt disable (which is bad and slow)
or it was ok anyway.  Since this is read only, I assert that there's no
need to disable local irqs, so we can use the spin_lock() function
instead of spin_lock_irqsave.

Next, the lock is taken and released at each iteration.  Why not take it
outside the loop body?  Well, one reason might be to reduce latency --
if other people are sleeping on that lock, they should be given a chance.
But the other people who use this lock are free_irq and request_irq --
hardly important latency-wise sincethey're almost always called at device
driver initialisation (bootup or module load/unload).

Finally, it's not declared `static', yet it's only used within this file.

-- 
Revolutions do not require corporate support.


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Matthew Wilcox wrote:
...
> I'm reviewing this code for Grant.  He's kindly allowed me to point out 
> the flaws publically for the benefit of all.

yup...overall willy pointed out some good things.
Let me correct a few nits though.

> The first thing is the use of spin_lock_irqsave.  This disables local
> interrupts and takes the spinlock.  However, this code can't be called
> from interrupt context, and nor can any of the other places which take
> this lock.  So there's no need to disable local irqs.

Agreed. I've fixed that and added a test to warn us in case request_irq()
or free_irq() are called from the interrupt context.

> Since this is read only, I assert that there's no
> need to disable local irqs, so we can use the spin_lock() function
> instead of spin_lock_irqsave.

Not quite correct. The lock is needed to protect the read-only traversing
of a linked list. We can leave local interrupts enabled though for
above reasons though.

...
> Finally, it's not declared `static', yet it's only used within this file.

It's used in:
    fs/proc/proc_misc.c:extern int get_irq_list(char *);
    fs/proc/proc_misc.c:  int len = get_irq_list(page);

Each arch has to provide this entry point.

thanks though for the other good points!
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] 64-bit "Internal compiler error" emit-rtl.c:1560
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Hi toolchain experts,

I'm working on kernel CONFIG_SMP support and can't compile a 64-bit kernel.
32-bit toolchain builds and links a (buggy) kernel.
Using the xc-20010117.tar.gz provided by Matt in both cases.

Any clues what's wrong?

thanks,
grant

Enabled CONFIG_SMP with the following sequence:
    cvs update -A
    vi Makefile		# set ARCH=parisc64 and CROSS_COMPILE=hppa64-linux-
    make oldconfig
    vi .config		# set CONFIG_SMP=y
    make oldconfig
    make -j4 dep

and then:

grundler <576>make palo
make: Circular /linux/smp64/linux/include/asm/smp.h <- /linux/smp64/linux/include/linux/sched.h dependency dropped.
hppa64-linux-gcc -D__KERNEL__ -I/linux/smp64/linux/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mschedule=7200 -fno-strict-aliasing -ffunction-sections   -c -o init/main.o init/main.c
In file included from /linux/smp64/linux/include/linux/fs.h:12,
                 from /linux/smp64/linux/include/linux/capability.h:17,
                 from /linux/smp64/linux/include/linux/binfmts.h:5,
                 from /linux/smp64/linux/include/linux/sched.h:9,
                 from /linux/smp64/linux/include/linux/mm.h:4,
                 from /linux/smp64/linux/include/linux/slab.h:14,
                 from /linux/smp64/linux/include/linux/malloc.h:4,
                 from /linux/smp64/linux/include/linux/proc_fs.h:5,
                 from init/main.c:15:
/linux/smp64/linux/include/linux/wait.h:129: Internal compiler error in operand_subword_force, at emit-rtl.c:1560
   Please submit a full bug report.
   See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make: *** [init/main.o] Error 2
grundler <577>


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On Thu, Jan 18, 2001 at 11:59:14AM -0800, Grant Grundler wrote:
> > Finally, it's not declared `static', yet it's only used within this file.
> 
> It's used in:
>     fs/proc/proc_misc.c:extern int get_irq_list(char *);
>     fs/proc/proc_misc.c:  int len = get_irq_list(page);

I'm sorry for being ambiguous.  I meant that the spin_lock should be
static, not the function.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] Trouble booting a 710 (bushmaster)
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On Thu, Jan 18, 2001 at 01:12:50PM -0500, Jim Buttafuoco wrote:
> Ok,
> 
> I tried the uncompressed ramdisk, same results.  I am going to try to 
> debug this issue first by putting some debug code in rd.c.  I will keep 
> you posted...
> 
> ANY more suggestions????

Sounds more likely a network driver problem.  Can you boot with
i596_debug=0xffff and send me the output.  If that doesn't generate
lots of extra output, change the value of i596_debug in
drivers/net/lasi_82596.c and try again.

Richard


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On Thu, Jan 18, 2001 at 10:17:24AM -0500, Jim Buttafuoco wrote:
> Hi,
> 
> I have been trying to get my 2 9000/710's to boot for a couple of months
> now.  Attached is the latest log file from my boot. 
> 
> The 2 problems that I see are the ramdisk is NOT seen and the BOOTP
> fails.  I have used TCPDUMP to look at the packets coming and going from
> the system.  All I see is the RBOOTP stuff.  The ramdisk is valid as far
> as I can tell. (I mounted it via the loop fs).  Should it be compressed
> with ZIP???.


> SCSI subsystem driver Revision: 1.00
> sim700: Couldn't get consistent shared memory
> sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86
> scsi0: Revision 0x0
> Post test1, istat 05, sstat0 00, dstat 81
> sim700: WARNING IRQ probe failed, (returned 0)
> scsi0: test 1 FAILED: dsps: exp 0xab93001d, got 0x00000000

You have problems with the scsi driver also.  dstat=81 says 
"Illegal Instruction Detected", which implies the scsi chip cannot
access memory properly.  If the network chip has the same problem,
that would explain your other problems.  As you can load the kernel
ok, I guess the h/w is ok and we are not setting something up
correctly.  I have a 715/75 which uses the same scsi and network
drivers; I'll try that in a while - havn't booted it for a month
or so.

Richard


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From: "Jim Buttafuoco" <jim@tylerdrive.org>
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Subject: Re: [parisc-linux] Trouble booting a 710 (bushmaster)
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This is a multi-part message in MIME format.

------=NEOMAIL_ATT_0.440625681848363
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attach is the boot log.


> On Thu, Jan 18, 2001 at 01:12:50PM -0500, Jim Buttafuoco wrote:
> > Ok,
> > 
> > I tried the uncompressed ramdisk, same results.  I am going to try
to 
> > debug this issue first by putting some debug code in rd.c.  I will
keep 
> > you posted...
> > 
> > ANY more suggestions????
> 
> Sounds more likely a network driver problem.  Can you boot with
> i596_debug=0xffff and send me the output.  If that doesn't generate
> lots of extra output, change the value of i596_debug in
> drivers/net/lasi_82596.c and try again.
> 
> Richard
> 
>
---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com
with
> `unsubscribe' as the subject.
> 
> 
> 



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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trouble booting a 710 (bushmaster)
Date: Thu, 18 Jan 2001 22:15:58 +0000
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To: Jim Buttafuoco <jim@tylerdrive.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:9287

On Thu, Jan 18, 2001 at 04:04:47PM -0500, Jim Buttafuoco wrote:
> attach is the boot log.

OK, that tells me that the network chip is working fine - the chip is
receiving frames and buffering them.  The problem is that interrupts
the chip generates are not getting to the driver - so the driver never
looks for completed commands.

Anyone know if interrupt handling is different for a 710?

Richard


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From: Daniele Dal Fiume <daniele@tesp53.tesre.bo.cnr.it>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HPPA Linux testing
Date: Tue, 1 Jun 1999 12:20:33 +0200
Organization: Istituto TeSRE - CNR
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Xref: news.gmane.org gmane.linux.ports.parisc:9288

Hi all.

I am a physicist of the Italian CNR (National Research Council).
I am using HPUX since twelve years. As I also use Linux, both at work
and at home since some years, I am interested to your Linux port to
HPPA machines.

I wonder if I can contribute somehow to this. I think I do not have
sufficient expertise with kernels to support coding, but I may be
an alpha tester. Here is the configuration of a HPPA workstation I
may use for testing (from HPUX xstm)

9000/715t/50 16 MB memory
external SCSI disk with 660MB

The workstation is currently in an HPUX cluster and has an internal SCSI
disk used for swap.

Please let me know, also via e-mail to my address if you prefer.

Thanks for your work on the HPPA-Linux port.

Daniele


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] No booting 715 old
Date: Thu, 18 Jan 2001 22:44:10 +0000
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To: "arete@libero.it" <arete@libero.it>
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Xref: news.gmane.org gmane.linux.ports.parisc:9289

On Thu, Jan 18, 2001 at 02:21:33PM +0100, arete@libero.it wrote:
> I have an 715/50 , with PDC rom 1.3 and IODC rom 1.1
> i use the palinux-0.5.iso image
>   and recive this messages
> 
> 
> .....
> 
> IASQ:00000000 IAOQ:c01c5280 c015280
> IIR:c840c00 ISR: 00000000 IOR:c02773f0
> ORIG_R28:00000000

If this is just after a message something like "ASP version .. found",
then it is a known problem with that kernel.  There is a newer kernel
on the ftp site, which you should try and boot (probably with rbootd
rather than bootpd on your server).

Richard


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From: Josiah Carlson <jcarlson@macalester.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] /proc problems
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Xref: news.gmane.org gmane.linux.ports.parisc:9290

Good afternoon,

(I'm using the .5 image and used the install instructions on
www.parisc-linux.org/install.html to get the booting system on a B160L)

Upon boot, the system is not automatically mounting /proc.
I made sure that the line:
/proc	/proc	proc	defaults
was in /etc/fstab, but the kernel never mounts it.

I also need a script to be run every boot (to set up the ethernet
interface...or if it automatically did this, I would be happy to know
how to do set it up to do this as well.)

(Greg Ingram)
Appending 'rw' at the end of the command line in palo works great to
enable read/write access to the booting volume, thank you.  Though I
don't think it's so much of a hack...I think it's more like a 'feature'
of palo that it doesn't automatically mount the boot volume as
read/write.  An annoying feature, but one that prevents new people from
mucking up the system too bad.

Thank you,
 - Josiah


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] /proc problems
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Xref: news.gmane.org gmane.linux.ports.parisc:9291

On Thu, Jan 18, 2001 at 04:47:28PM -0600, Josiah Carlson wrote:
> Good afternoon,
> 
> (I'm using the .5 image and used the install instructions on
> www.parisc-linux.org/install.html to get the booting system on a B160L)
> 
> Upon boot, the system is not automatically mounting /proc.
> I made sure that the line:
> /proc	/proc	proc	defaults
> was in /etc/fstab, but the kernel never mounts it.
> 
> I also need a script to be run every boot (to set up the ethernet
> interface...or if it automatically did this, I would be happy to know
> how to do set it up to do this as well.)

I thought the instructions for that were in the README.POSTINSTALL
on the CD image...

Richard


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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ftp, gcc, etc...
Date: Fri, 19 Jan 2001 12:27:32 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:9292

Sorry for darn near spamming the list with all my problems...

I was going to get some packages and such...but it seems that the base .5
image lacks ftp...
I was curious as to which package includes ftp as one of it's binaries.  It
is a little strange to be on a linux machine and not have ftp.  I've
started to install packages that I thought would do it...but I haven't
found it yet.

On a side note, I'm setting up 6 hp machines to be turned into a parallel
processing cluster using MPICH, and am going to need to compile the
sources.  (or if someonee else wants to compile them and make a debian
package out of them...would be really nice *smile*).  Along those lines,
which packages do I need to install on the hp machine to allow configure,
make, gcc, etc... to work together?
After installing gcc and glibc (as well as all the required libraries for
gcc), I tested it with a hello world program, and everything went peachy,
but I do not know if the MPICH configure and make will work yet as I am not
able to download it (I want my ftp! *5 points if you know what this refers
to*).

Any help at all would be greatly appreciated,
Thank you,
 - Josiah


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From: Paul Bame <bame@fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] palo, update to README.INSTALL
Date: Fri, 19 Jan 2001 11:28:43 -0700
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palo's command line has changed since README.INSTALL was written, so
if you have a newer palo (for example
ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/palo-20010118.tgz)
please note this change.

Where README.INSTALL uses 'palo -I -k ... /dev/sda' please change it
to 'palo -k ... -I /dev/sda' -- the -I option now requires an argument.

	-Paul Bame


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] palo, update to README.INSTALL
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Xref: news.gmane.org gmane.linux.ports.parisc:9294

Paul Bame wrote:
> 
> palo's command line has changed since README.INSTALL was written, so
> if you have a newer palo (for example
> ftp://puffin.external.hp.com/pub/parisc/binaries/userspace/palo-20010118.tgz)
> please note this change.
> 
> Where README.INSTALL uses 'palo -I -k ... /dev/sda' please change it
> to 'palo -k ... -I /dev/sda' -- the -I option now requires an argument.

And need to add "console=ttyS0" parameter too!

I'm using CONFIG_SERIAL_CONSOLE on c3k:
    palo -I /dev/sda -k /boot/vmlinux -b /boot/iplboot \
         -c '3/boot/vmlinux console=ttyS0 TERM=linux HOME=/ root=/dev/sda3'

grant


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excuse me
wath i can download to install linux on my parisc ???
regards


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From: Matthieu Delahaye <delahaym@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] File formats auto-detection by Lasi Harmony
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This is a multi-part message in MIME format.
--------------4695CB23E470794E9F8738B7
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi,

The patch above permits harmony driver to auto-detect file format
when the application, which access to /dev/audio, doesn't set the
output settings itself via ioctl() before starting playing.

Formats recognized are:
8 bits u-law
8 bits A-law
16 bits linear

Into these patch, I included again the sound mixer to make it work
on a clean CVS image.

Any feedbacks would be appreciated;
Regards

Matthieu Delahaye
ESIEE Team
http://www.esiee.fr/puffin


--------------4695CB23E470794E9F8738B7
Content-Type: text/plain; charset=us-ascii;
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 filename="harmony.diff"

diff -Nru linux.original/drivers/sound/Makefile linux/drivers/sound/Makefile
--- linux.original/drivers/sound/Makefile	Tue Jan 16 21:31:10 2001
+++ linux/drivers/sound/Makefile	Sat Jan 20 01:29:47 2001
@@ -108,7 +108,7 @@
 # Declare multi-part drivers.
 
 list-multi	:= sound.o gus.o pas2.o sb.o sb_lib.o vidc_mod.o \
-    soundcore.o wavefront.o
+    soundcore.o wavefront.o harmony.o
 
 sound-objs	:= 							\
     dev_table.o soundcard.o sound_syms.o		\
@@ -124,6 +124,7 @@
 sb_lib-objs	:= sb_common.o sb_audio.o sb_midi.o sb_mixer.o sb_ess.o
 vidc_mod-objs	:= vidc.o vidc_fill.o
 wavefront-objs  := wavfront.o wf_midi.o yss225.o
+harmony-objs    := harmony_driver.o harmony_sound.o harmony_mixer.o
 
 
 # Extract lists of the multi-part drivers.
@@ -189,6 +190,9 @@
 wavefront.o: $(wavefront-objs)
 	$(LD) -r -o $@ $(wavefront-objs)
 
+harmony.o: $(harmony-objs)
+	$(LD) -r -o $@ $(harmony-objs.o)
+
 # Firmware files that need translation
 #
 # The translated files are protected by a file that keeps track
@@ -332,3 +336,8 @@
 ifneq ($(FILES_BOOT_CHANGED),)
 $(FILES_BOOT_CHANGED): dummy
 endif
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony.h linux/drivers/sound/harmony.h
--- linux.original/drivers/sound/harmony.h	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony.h	Sat Jan 20 01:29:47 2001
@@ -0,0 +1,161 @@
+/* 
+   drivers/sound/harmony.h
+
+   These declarations come from original file
+   harmony.c written by Alex deVries.
+
+   Added Magics numbers for format file auto-detection.
+   Corrected HARMONY_SS_MONO and HARMONY_SS_STEREO to
+   their right values.
+
+                     Matthieu Delahaye <delahaym@esiee.fr>, 2001
+
+*/
+
+
+#ifndef _HARMONY_H
+#define _HARMONY_H
+#include <linux/config.h>
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/malloc.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <asm/gsc.h>
+
+#include <asm/pgalloc.h>
+#include <asm/pdc.h>
+#include <asm/page.h>
+#include <asm/segment.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/hardware.h>
+
+#include <asm/irq.h>            /* for "gsc" irq functions */
+#include <asm/gsc.h>
+
+#include "sound_config.h"
+#define MAX_BUFS 3
+
+#define CNTL_C		0x80000000
+#define	CNTL_ST		0x00000020
+#define CNTL_44100	0x00000015
+#define CNTL_8000	0x00000008
+
+#define GAINCTL_HE	0x08000000
+#define GAINCTL_LE	0x04000000
+#define GAINCTL_SE	0x02000000
+
+#define DSTATUS_PN	0x00000200
+#define DSTATUS_RN	0x00000002
+
+#define DSTATUS_IE	0x80000000
+
+#define HARMONY_DF_16BIT_LINEAR	0
+#define HARMONY_DF_8BIT_ULAW	1
+#define HARMONY_DF_8BIT_ALAW	2
+
+#define HARMONY_SS_MONO 0
+#define HARMONY_SS_STEREO 1
+
+#define HARMONY_SR_8KHZ 0x08
+#define HARMONY_SR_16KHZ 0x09
+#define HARMONY_SR_27KHZ 0x0A
+#define HARMONY_SR_32KHZ 0x0B
+#define HARMONY_SR_48KHZ 0x0E
+#define HARMONY_SR_9KHZ 0x0F
+#define HARMONY_SR_5KHZ 0x10
+#define HARMONY_SR_11KHZ 0x11
+#define HARMONY_SR_18KHZ 0x12
+#define HARMONY_SR_22KHZ 0x13
+#define HARMONY_SR_37KHZ 0x14
+#define HARMONY_SR_44KHZ 0x15
+#define HARMONY_SR_33KHZ 0x16
+#define HARMONY_SR_6KHZ 0x17
+
+#define HARMONY_BUF_NONE	-1
+#define HARMONY_BUF_EMPTY	0
+#define HARMONY_BUF_FILLED	1
+#define HARMONY_BUF_READY_TO_PLAY	2
+#define HARMONY_BUF_PLAYING	3
+
+
+/* Some magics numbers used to auto-detect file formats */
+
+#define HARMONY_MAGIC_8B_ULAW 1
+#define HARMONY_MAGIC_8B_ALAW 27
+#define HARMONY_MAGIC_16B_LINEAR 3
+#define HARMONY_MAGIC_MONO 1
+#define HARMONY_MAGIC_STEREO 2
+
+struct harmony_hpa {
+	u8	unused000;
+	u8	id;
+	u8	teleshare_id;
+	u8	unused003;
+	u32	reset;
+	u32	cntl;
+	u32	gainctl;
+	u32	pnxtadd;
+	u32	pcuradd;
+	u32	rnxtadd;
+	u32	rcuradd;
+	u32	dstatus;
+	u32	ov;
+	u32	pio;
+	u32	unused02c;
+	u32	unused030[3];
+	u32	diag;
+};
+
+#define dma_consistent 0
+
+#define  CHECK_WBACK(addr,len) \
+        do { if (!dma_consistent) dma_cache_wback((unsigned long)addr,len); } while (0) 
+#define  CHECK_INV(addr,len) \
+        do { if (!dma_consistent) dma_cache_inv((unsigned long)addr,len); } while(0)
+
+#define  CHECK_WBACK_INV(addr,len) \
+        do { if (!dma_consistent) dma_cache_wback_inv((unsigned long)addr,len); } while (0) 
+
+struct harmony_dev {
+	int irq;
+	int frames_so_far;
+	struct harmony_hpa  *hpa;
+	int done;
+	int buf_state[MAX_BUFS+1];
+	u32 current_gain;
+	u8 data_format;
+	u8 sample_rate;
+	u8 stereo_select;  /* 1 = stereo, 0 = mono */
+	/* outstanding_buffers is a count that ensures that the number
+	   of recorded frames is the same as the number of played frames. 
+	   In the stable situation, this number is zero.  You should never
+	   disable interrupts until this is zero. */
+	int outstanding_buffers; 
+	int format_initialized;
+	
+};
+
+int harmony_mixer_init(struct harmony_dev *);
+int harmony_audio_init(struct harmony_dev *);
+
+
+
+
+#endif _HARMONY_H
+
+
+
+
+
+
+
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony_driver.c linux/drivers/sound/harmony_driver.c
--- linux.original/drivers/sound/harmony_driver.c	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony_driver.c	Sat Jan 20 01:29:46 2001
@@ -0,0 +1,183 @@
+/* 
+
+ 	drivers/sound/harmony.c 
+
+	This is a sound driver for Lasi's Harmony sound chip.  This is
+	unlikely to be used for anything other than a PA-RISC.
+
+	Harmony is found in HP 712s, 715/new, and many other GSC based machines. 
+Copyright 2000 (c) Linuxcare Canada, Alex deVries <alex@linuxcare.com>
+
+Bugs:
+
+1. Doesn't work on 715/old
+
+This driver doesn't work on 715/old machines, which include the 715/75.  The
+chip used for this is technically called 'Vivace', which is identical to 
+Harmony.  Should be easy to fix.  It has something to do with the way it is
+reported by the inventory code.  The HPA is not that of Lasi or ASP so the
+interrupts aren't registered properly.
+
+3. gain control ioctls are missing
+4. recording is missing
+
+5. Buffer handling code
+
+The three buffer system should probably be changed to use N buffers, so we 
+can load the buffers into memory and then exit.  Shouldn't be too hard, and 
+the performance will be a lot nicer.
+
+6. Clicks at start and finish
+
+I'm not sure why, but somehow I've introduced two clicks at the start and
+two clicks at the finish of each playing.  Shouldn't be too hard to track down.
+
+
+About the rotating buffer
+-------------------------
+
+I'm going to explain how the rotating buffer thing works because I had a hard
+time figuring it out for myself.
+
+At any given time, harmony uses two different buffers.  One is the frame
+that is currently playing, another is the frame that is ready to be played.
+
+Obviously you can't be writing into either of these frames while the chip
+is playing, or you'll hear clicks, pops and out of order frames.  One weekend
+of listening to RMS sing The Free Software Song out of order is a good way to 
+drive this point home.
+
+So, we use a total of three frames.  One is in PLAYING mode, one is is 
+READY_TO_PLAY mode, and the third is either LOADED or EMPTY.  All buffers
+start up by being EMTPY.  When harmony_audio_write loads up two frames,
+interrupts are started and the loop starts.  The ISR pops in the first frame,
+marking it as PLAYING.  The ISR will get called again, and the second 
+frame will be loaded and marked as READY_TO_PLAY.  When the first frame is
+done, the ISR will be called again; frame one is marked as EMPTY to reload,
+frame two is marked PLAYING, frame three is marked READY_TO_PLAY.
+
+All the while, harmony_audio_write is looking for frames marked EMPTY, and
+filling them and marking them LOADED.
+
+Yes, this does actually work.
+
+Let me save you an entire Thursday of listening to "orvalds Linus Linux, I 
+prounouce as Linus This is" by giving you this rotating buffer code.
+
+*/
+
+
+
+/* 
+   The source code is splitted into two new files:
+   harmony_driver.c about hardware detectetion and
+   harmony_sound.c which manage /dev/dsp
+   
+   A new file, harmony_mixer.c, manage /dev/mixer.
+
+                          Matthieu Delahaye <delahaym@esiee.fr>, 2001
+*/
+
+
+
+
+#include "harmony.h"
+
+
+
+
+static struct harmony_dev harmony;
+static int harmony_driver_callback(struct hp_device *d, struct pa_iodc_driver *dri);
+
+
+/* This is the PDC signature to load up the driver. */
+
+static struct pa_iodc_driver harmony_drivers_for[] = {
+
+	{HPHW_FIO, 0x01B, 0, 0x0007B, 0x0, 0x0, 
+		DRIVER_CHECK_HWTYPE + DRIVER_CHECK_SVERSION,
+		"Lasi Harmony", "Harmony", (void *) harmony_driver_callback},
+	{0,0,0,0,0,0,0,
+	(char *) NULL,(char *) NULL,(void *) NULL}
+};
+
+
+void __init 
+register_harmony_drivers(void)
+{
+        register_driver(harmony_drivers_for);
+}
+
+/* This is the callback that's called by the inventory hardware code if
+it finds a match to the registered driver. */
+
+
+static int 
+harmony_driver_callback(struct hp_device *d, struct pa_iodc_driver *dri)
+{
+	
+	u8	id;
+	u8	rev;
+	u32	cntl;
+	int ret;
+
+	/* Set the HPA of harmony */
+
+	harmony.hpa = d->hpa;
+
+	/* Grab an IRQ from Lasi */
+	harmony.irq = busdevice_alloc_irq(d);
+
+	if (!harmony.irq) {
+		printk(KERN_ERR "Harmony: problem getting irq\n");
+		return -1;
+	}
+
+	request_region(&harmony, 13, "harmony");
+
+	/* Grab the ID and revision from the device */
+	id = gsc_readb((void *) &(harmony.hpa->id));
+
+	if((id | 1) != 0x15) {
+		printk(KERN_WARNING "harmony_init: wrong id %02x\n", id);
+		return -EBUSY;
+	}
+	cntl = gsc_readl(&harmony.hpa->cntl);
+	rev = ((cntl>>20)&0xff);
+
+        printk(KERN_INFO "Lasi Harmony Audio rev. %i at 0x%x, using IRQ %i\n",rev,(unsigned int) d->hpa,harmony.irq);
+
+
+
+	
+	
+	
+	/* Make sure the control bit isn't set, although I don't think it 
+	   ever is. */
+
+	if(cntl & CNTL_C) {
+		printk(KERN_WARNING "harmony_init: CNTL busy\n");
+		return -EBUSY;
+	}
+
+	/* Initialize /dev/mixer and /dev/audio  */
+
+
+	if((ret=harmony_mixer_init(&harmony))) return ret;
+	if((ret=harmony_audio_init(&harmony))) return ret;
+
+
+	return 0;
+}
+
+
+
+
+
+
+
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony_mixer.c linux/drivers/sound/harmony_mixer.c
--- linux.original/drivers/sound/harmony_mixer.c	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony_mixer.c	Sat Jan 20 01:29:46 2001
@@ -0,0 +1,319 @@
+/*
+ * sound/harmony_mixer.c
+ *
+ * The low level mixer driver for the Harmony card.
+ */
+
+/*
+ *  function ioctl inspired from file sb_mixer.c
+ *           Matthieu Delahaye <delahaym@esiee.fr>, 2001
+ */
+
+#include "sound_config.h"
+
+#include "harmony.h"
+#include "harmony_mixer.h"
+
+
+struct harmony_dev * harmony_mixer;
+
+
+/*
+ * This is the only place where the gainctl is written
+ */
+
+static void harmony_mixer_set_gain(void)
+{
+	int cntl;
+	while((cntl = gsc_readl(&harmony_mixer->hpa->cntl)) & CNTL_C);
+#if 0
+	printk(KERN_INFO "Harmony gain is now %x\n",harmony_mixer->current_gain);
+#endif
+	gsc_writel(harmony_mixer->current_gain, &harmony_mixer->hpa->gainctl);
+	while((cntl = gsc_readl(&harmony_mixer->hpa->cntl)) & CNTL_C);
+  
+}
+
+
+/* 
+ *  Read gain of selected channel.
+ *  The OSS rate is from 0 (silent) to 100 -> need some conversions
+ *
+ *  The harmony gain are attenuation for output and monitor gain.
+ *                   is amplifaction for input gain
+ */
+#define to_harmony_level(level,max) (level)*max/100 
+#define to_oss_level(level,max) (level)*100/max;
+
+static int harmony_mixer_get_level(int channel)
+{
+	int left_level;
+	int right_level;
+
+	if(channel == SOUND_MIXER_OGAIN) {
+		left_level=(harmony_mixer->current_gain & GAIN_LO_MASK) >> GAIN_LO_SHIFT;
+		right_level=(harmony_mixer->current_gain & GAIN_RO_MASK) >> GAIN_RO_SHIFT;
+		left_level=to_oss_level(MAX_OUTPUT_LEVEL - left_level,MAX_OUTPUT_LEVEL);
+		right_level=to_oss_level(MAX_OUTPUT_LEVEL - right_level,MAX_OUTPUT_LEVEL);
+		return (right_level << 8)+left_level;
+	}
+	if(channel == SOUND_MIXER_IGAIN) {
+		left_level=(harmony_mixer->current_gain & GAIN_LI_MASK) >> GAIN_LI_SHIFT;
+		right_level=(harmony_mixer->current_gain & GAIN_RI_MASK) >> GAIN_RI_SHIFT;
+		left_level=to_oss_level(left_level,MAX_INPUT_LEVEL);
+		right_level=to_oss_level(right_level,MAX_INPUT_LEVEL);
+		return (right_level << 8)+left_level;
+	}
+	if(channel == SOUND_MIXER_VOLUME) {
+		left_level=(harmony_mixer->current_gain & GAIN_MA_MASK) >> GAIN_MA_SHIFT;
+		left_level=to_oss_level(MAX_VOLUME_LEVEL-left_level,MAX_VOLUME_LEVEL);
+		return left_level;
+	}
+	return -EINVAL;
+}
+
+
+/*
+ * Some conversions for the same reasons.
+ * We give back the new real value(s) due to
+ * the rescale.
+ */
+
+static int harmony_mixer_set_level(int channel, int value)
+{
+	int left_level;
+	int right_level;
+	int new_left_level;
+	int new_right_level;
+
+	right_level=(value & 0x0000ff00) >> 8;
+	left_level=value & 0x000000ff;
+  
+	if(channel == SOUND_MIXER_OGAIN) {
+		right_level=to_harmony_level(100-right_level,MAX_OUTPUT_LEVEL);
+		left_level=to_harmony_level(100-left_level,MAX_OUTPUT_LEVEL);
+		new_right_level=to_oss_level(MAX_OUTPUT_LEVEL - right_level,MAX_OUTPUT_LEVEL);
+		new_left_level=to_oss_level(MAX_OUTPUT_LEVEL - left_level,MAX_OUTPUT_LEVEL);
+		harmony_mixer->current_gain=(harmony_mixer->current_gain & ~(GAIN_LO_MASK | GAIN_RO_MASK)) | (left_level << GAIN_LO_SHIFT) | (right_level << GAIN_RO_SHIFT);
+		harmony_mixer_set_gain();
+		return (new_right_level << 8) + new_left_level;		
+	}
+	if(channel == SOUND_MIXER_IGAIN) {
+      
+		right_level=to_harmony_level(right_level,MAX_INPUT_LEVEL);
+		left_level=to_harmony_level(left_level,MAX_INPUT_LEVEL);
+		new_right_level=to_oss_level(right_level,MAX_INPUT_LEVEL);
+		new_left_level=to_oss_level(left_level,MAX_INPUT_LEVEL);
+		harmony_mixer->current_gain=(harmony_mixer->current_gain & ~(GAIN_LI_MASK | GAIN_RI_MASK)) | (left_level << GAIN_LI_SHIFT) | (right_level << GAIN_RI_SHIFT);
+		harmony_mixer_set_gain();
+		return (new_right_level << 8) + new_left_level;
+		
+	}
+	if(channel == SOUND_MIXER_VOLUME) {
+		
+		left_level=to_harmony_level(100-left_level,MAX_VOLUME_LEVEL);
+		new_left_level=to_oss_level(MAX_VOLUME_LEVEL-left_level,MAX_VOLUME_LEVEL);
+		harmony_mixer->current_gain=(harmony_mixer->current_gain & ~GAIN_MA_MASK)| (left_level << GAIN_MA_SHIFT);
+		harmony_mixer_set_gain();
+		return new_left_level;
+	}
+
+	return -EINVAL;
+}
+
+
+/* 
+ * Return the selected input device (mic or line)
+ */
+
+static int harmony_mixer_get_recmask(void) 
+{
+	int current_input_line;
+	
+	current_input_line=(harmony_mixer->current_gain & GAIN_IS_MASK) >> GAIN_IS_SHIFT;
+	if(current_input_line) return SOUND_MASK_MIC;
+	else return SOUND_MASK_LINE;
+}
+
+/*
+ * Set the input (only one at time, arbitrary priority to line in)
+ */
+
+static int harmony_mixer_set_recmask(int recmask)
+{
+	int new_input_line;
+	int new_input_mask;
+
+	if((recmask & SOUND_MASK_LINE)) {
+		new_input_line=0;
+		new_input_mask=SOUND_MASK_LINE;
+	} else  {
+		new_input_line=1;
+		new_input_mask=SOUND_MASK_MIC;
+	}
+	harmony_mixer->current_gain=((harmony_mixer->current_gain & ~GAIN_IS_MASK) | (new_input_line << GAIN_IS_SHIFT ));
+	harmony_mixer_set_gain();
+	return new_input_mask;
+}
+
+
+/* 
+ * give the active outlines
+ */
+
+static int harmony_mixer_get_outmask(void)
+{
+	int outmask;
+	
+	outmask=0;
+	
+	if(harmony_mixer->current_gain & GAIN_HE_MASK) outmask |=SOUND_MASK_PHONEOUT;
+	if(harmony_mixer->current_gain & GAIN_LE_MASK) outmask |=SOUND_MASK_LINE;
+	if(harmony_mixer->current_gain & GAIN_SE_MASK) outmask |=SOUND_MASK_SPEAKER;
+	return outmask;
+}
+
+
+
+static int harmony_mixer_set_outmask(int outmask)
+{
+	if(outmask & SOUND_MASK_PHONEOUT) 
+		harmony_mixer->current_gain|=GAIN_HE_MASK; 
+	else harmony_mixer->current_gain&=~GAIN_HE_MASK;
+	if(outmask & SOUND_MASK_LINE) harmony_mixer->current_gain|=GAIN_LE_MASK;
+	else harmony_mixer->current_gain&=~GAIN_LE_MASK;
+	if(outmask & SOUND_MASK_SPEAKER) harmony_mixer->current_gain|=GAIN_SE_MASK;
+	else harmony_mixer->current_gain&=~GAIN_SE_MASK;
+	harmony_mixer_set_gain();
+	return (outmask & (SOUND_MASK_PHONEOUT | SOUND_MASK_LINE | SOUND_MASK_SPEAKER));
+
+}
+
+/*
+ * This code is inspired from sb_mixer.c
+ * It determins actions selected by application
+ */
+
+int harmony_mixer_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg)
+{
+	int val;
+	int ret;
+
+	if (((cmd >> 8) & 0xff) == 'M') {
+		if (_SIOC_DIR(cmd) & _SIOC_WRITE) {
+			if (get_user(val, (int *)arg)) return -EFAULT;
+     
+			switch (cmd & 0xff) {
+			case SOUND_MIXER_RECSRC:
+				ret = harmony_mixer_set_recmask(val);
+				break;
+				
+			case SOUND_MIXER_OUTSRC:
+				ret = harmony_mixer_set_outmask(val);
+				break;
+				
+			default:
+				ret = harmony_mixer_set_level(cmd & 0xff, val);
+			}
+		} else {
+	  
+			switch (cmd & 0xff) {
+				
+			case SOUND_MIXER_RECSRC:
+				ret = harmony_mixer_get_recmask();
+				break;
+				
+			case SOUND_MIXER_OUTSRC:
+				ret = harmony_mixer_get_outmask();
+				break;
+				
+			case SOUND_MIXER_DEVMASK:
+				ret = HARMONY_MIXER_DEVICES;
+				break;
+	      
+			case SOUND_MIXER_STEREODEVS:
+				ret = HARMONY_STEREO_DEVICES;
+				break;
+	      
+			case SOUND_MIXER_RECMASK:
+				ret = HARMONY_RECORDING_DEVICES;
+				break;
+	      
+			case SOUND_MIXER_OUTMASK:
+				ret = HARMONY_OUTPUT_DEVICES;
+				break;
+				
+			case SOUND_MIXER_CAPS:
+				ret = HARMONY_CAPS;
+				break;
+	      
+			default:
+				ret = harmony_mixer_get_level(cmd & 0xff);
+				break;
+			}
+		}
+		return put_user(ret, (int *)arg); 
+	} else
+		return -EINVAL;
+}
+
+static struct file_operations harmony_mixer_fops = {
+	owner:	THIS_MODULE,
+	ioctl: 	harmony_mixer_ioctl,
+};
+
+
+/*
+ * Mute all the output and reset Harmony.
+ */
+
+void harmony_mixer_reset(void)
+{
+	harmony_mixer->current_gain=GAIN_TOTAL_SILENCE;
+	harmony_mixer_set_gain();
+	gsc_writel(1, &harmony_mixer->hpa->reset);
+	udelay(100);
+	gsc_writel(0, &harmony_mixer->hpa->reset);
+	harmony_mixer->current_gain=GAIN_DEFAULT;
+	harmony_mixer_set_gain();
+}
+
+int harmony_mixer_init(struct harmony_dev * harmony_device)
+{
+  
+	int ret;
+	harmony_mixer=harmony_device;
+  
+	/* Register the device file operations */
+
+	ret=register_sound_mixer(&harmony_mixer_fops,-1);
+	if(ret<0) {
+		printk(KERN_WARNING "Harmony: Error Registering Mixer Driver\n");
+		return -EFAULT;
+	}
+  
+	harmony_mixer_reset();
+  
+	return 0;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony_mixer.h linux/drivers/sound/harmony_mixer.h
--- linux.original/drivers/sound/harmony_mixer.h	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony_mixer.h	Sat Jan 20 01:29:47 2001
@@ -0,0 +1,62 @@
+/*
+ * sound/harmony_mixer.h
+ * 
+ * Definitions for the Harmony mixer
+ *      Matthieu Delahaye <delahaym@esiee.fr>, 2001
+ *
+ */
+
+
+/*
+ * Channels Positions in mixer register
+ */
+
+#define GAIN_HE_SHIFT   27
+#define GAIN_HE_MASK    ( 1 << GAIN_HE_SHIFT) 
+#define GAIN_LE_SHIFT   26
+#define GAIN_LE_MASK    ( 1 << GAIN_LE_SHIFT) 
+#define GAIN_SE_SHIFT   25
+#define GAIN_SE_MASK    ( 1 << GAIN_SE_SHIFT) 
+#define GAIN_IS_SHIFT   24
+#define GAIN_IS_MASK    ( 1 << GAIN_IS_SHIFT) 
+#define GAIN_MA_SHIFT   20
+#define GAIN_MA_MASK    ( 0x0f << GAIN_MA_SHIFT) 
+#define GAIN_LI_SHIFT   16
+#define GAIN_LI_MASK    ( 0x0f << GAIN_LI_SHIFT) 
+#define GAIN_RI_SHIFT   12
+#define GAIN_RI_MASK    ( 0x0f << GAIN_RI_SHIFT) 
+#define GAIN_LO_SHIFT   6
+#define GAIN_LO_MASK    ( 0x3f << GAIN_LO_SHIFT) 
+#define GAIN_RO_SHIFT   0
+#define GAIN_RO_MASK    ( 0x3f << GAIN_RO_SHIFT) 
+
+
+
+
+
+#define MAX_OUTPUT_LEVEL (GAIN_RO_MASK >> GAIN_RO_SHIFT)
+#define MAX_INPUT_LEVEL  (GAIN_RI_MASK >> GAIN_RI_SHIFT)
+#define MAX_VOLUME_LEVEL (GAIN_MA_MASK >> GAIN_MA_SHIFT)
+
+
+/*
+ * OSS values
+ */
+
+#define HARMONY_MIXER_DEVICES (SOUND_MASK_OGAIN|SOUND_MASK_IGAIN|SOUND_MASK_VOLUME)
+#define HARMONY_RECORDING_DEVICES (SOUND_MASK_MIC | SOUND_MASK_LINE )
+#define HARMONY_OUTPUT_DEVICES (SOUND_MASK_SPEAKER | SOUND_MASK_LINE | SOUND_MASK_PHONEOUT )
+#define HARMONY_CAPS 1
+#define HARMONY_STEREO_DEVICES (SOUND_MASK_IGAIN | SOUND_MASK_OGAIN)
+
+/*
+ * Channels Mask in mixer register
+ */
+
+
+#define GAIN_TOTAL_SILENCE 0x00F00FFF
+#define GAIN_DEFAULT       0x0FF00FFF
+
+
+
+
diff -Nru linux.original/drivers/sound/harmony_sound.c linux/drivers/sound/harmony_sound.c
--- linux.original/drivers/sound/harmony_sound.c	Thu Jan  1 01:00:00 1970
+++ linux/drivers/sound/harmony_sound.c	Sat Jan 20 01:29:47 2001
@@ -0,0 +1,703 @@
+/* 
+
+ 	drivers/sound/harmony.c 
+
+	This is a sound driver for Lasi's Harmony sound chip.  This is
+	unlikely to be used for anything other than a PA-RISC.
+
+	Harmony is found in HP 712s, 715/new, and many other GSC based machines. 
+Copyright 2000 (c) Linuxcare Canada, Alex deVries <alex@linuxcare.com>
+
+Bugs:
+
+1. Doesn't work on 715/old
+
+This driver doesn't work on 715/old machines, which include the 715/75.  The
+chip used for this is technically called 'Vivace', which is identical to 
+Harmony.  Should be easy to fix.  It has something to do with the way it is
+reported by the inventory code.  The HPA is not that of Lasi or ASP so the
+interrupts aren't registered properly.
+
+3. gain control ioctls are missing
+4. recording is missing
+
+5. Buffer handling code
+
+The three buffer system should probably be changed to use N buffers, so we 
+can load the buffers into memory and then exit.  Shouldn't be too hard, and 
+the performance will be a lot nicer.
+
+6. Clicks at start and finish
+
+I'm not sure why, but somehow I've introduced two clicks at the start and
+two clicks at the finish of each playing.  Shouldn't be too hard to track down.
+
+
+About the rotating buffer
+-------------------------
+
+I'm going to explain how the rotating buffer thing works because I had a hard
+time figuring it out for myself.
+
+At any given time, harmony uses two different buffers.  One is the frame
+that is currently playing, another is the frame that is ready to be played.
+
+Obviously you can't be writing into either of these frames while the chip
+is playing, or you'll hear clicks, pops and out of order frames.  One weekend
+of listening to RMS sing The Free Software Song out of order is a good way to 
+drive this point home.
+
+So, we use a total of three frames.  One is in PLAYING mode, one is is 
+READY_TO_PLAY mode, and the third is either LOADED or EMPTY.  All buffers
+start up by being EMTPY.  When harmony_audio_write loads up two frames,
+interrupts are started and the loop starts.  The ISR pops in the first frame,
+marking it as PLAYING.  The ISR will get called again, and the second 
+frame will be loaded and marked as READY_TO_PLAY.  When the first frame is
+done, the ISR will be called again; frame one is marked as EMPTY to reload,
+frame two is marked PLAYING, frame three is marked READY_TO_PLAY.
+
+All the while, harmony_audio_write is looking for frames marked EMPTY, and
+filling them and marking them LOADED.
+
+Yes, this does actually work.
+
+Let me save you an entire Thursday of listening to "orvalds Linus Linux, I 
+prounouce as Linus This is" by giving you this rotating buffer code.
+
+*/
+
+
+/* 
+   Changeg struct harmony_dev named harmony to 
+   a pointer (named harmony_audio) to the same structure
+   
+   Putted out all access to gain and reset 
+   (harmony_mixer now managed these)
+
+   Added harmony_format_auto_detect which try to auto-detect
+   file format when the application start to send data without
+   any initialization. File formats recognized are:
+      8bit u-law
+      8bit A-law
+      16bit linear
+   Others file formats aren't directly supported by Harmony.
+
+                     Matthieu Delahaye <delahaym@esiee.fr> , 2001
+
+*/
+
+
+/* Until we have recording working, this is where we're putting the recording data. */
+
+/* The following is required because of our cache incoherence */
+#include "harmony.h"
+static char graveyard[4096] __attribute__((aligned(4096)));
+
+static unsigned char aligned_buf [4096*(MAX_BUFS+1)] __attribute__ ((aligned (4096))); 
+
+
+
+static int harmony_audio_open(struct inode *inode, struct file *file);
+static int harmony_audio_release(struct inode *inode, struct file *file);
+static loff_t harmony_audio_llseek(struct file *file, loff_t offset, int whence);
+static ssize_t harmony_audio_read(struct file *file,
+                                char *buffer,
+                                size_t count,
+                                loff_t *ppos);
+static ssize_t harmony_audio_write(struct file *file,
+                                 const char *buffer,
+                                 size_t count,
+                                 loff_t *ppos);
+static unsigned int harmony_audio_poll(struct file *file,
+                                     struct poll_table_struct *wait);
+static int harmony_audio_ioctl(struct inode *inode,
+                                struct file *file,
+                                unsigned int cmd,
+                                unsigned long arg);
+static int harmony_audio_mmap(struct file *file, struct vm_area_struct *vma);
+
+
+static void harmony_interrupt(int irq, void *dev, struct pt_regs *regs);
+
+static void harmony_set_control(u8 data_format, u8 sample_rate, u8 stereo_select) ;
+static void harmony_set_format(u8 data_format);
+static void harmony_set_rate(u8 data_rate);
+static int harmony_enable_interrupts(void); 
+static int harmony_disable_interrupts(void);
+static int harmony_silence(unsigned char * buffer,int end, int start);
+
+static struct file_operations harmony_audio_fops = {
+	owner: THIS_MODULE,
+	llseek: harmony_audio_llseek,
+	read: 	harmony_audio_read,
+	write:	harmony_audio_write,
+	poll: 	harmony_audio_poll,
+	ioctl: 	harmony_audio_ioctl,
+	mmap:	harmony_audio_mmap,
+	open: 	harmony_audio_open,
+	release:	harmony_audio_release,
+};
+
+static struct harmony_dev * harmony_audio;
+
+/* This is the PDC signature to load up the driver. */
+
+
+/* This is the callback that's called by the inventory hardware code if
+it finds a match to the registered driver. */
+
+static void harmony_update_control(void) {
+	u32 default_cntl;
+
+	/* Set CNTL */
+	default_cntl = ((1 << 31) |  /* The C bit */
+		(harmony_audio->data_format << 6) |   /* Set the data format */
+		(harmony_audio->stereo_select << 5) |   /* Stereo select */
+		(harmony_audio->sample_rate));        /* Set sample rate */
+	harmony_audio->format_initialized=1;
+	
+	/* initialize CNTL */
+	gsc_writel( default_cntl, &harmony_audio->hpa->cntl);
+}
+
+static void harmony_set_control(u8 data_format, u8 sample_rate, u8 stereo_select) {
+
+	harmony_audio->sample_rate = sample_rate;
+	harmony_audio->data_format = data_format;
+	harmony_audio->stereo_select = stereo_select;
+	harmony_update_control();
+}
+static void harmony_set_rate(u8 data_rate) {
+	harmony_audio->sample_rate = data_rate;
+	harmony_update_control();
+}
+
+static void harmony_set_format(u8 data_format) {
+
+	harmony_audio->data_format = data_format;
+	harmony_update_control();
+}
+
+static void harmony_set_stereo(u8 stereo_select) {
+
+	harmony_audio->stereo_select = stereo_select;
+	harmony_update_control();
+}
+
+static int harmony_disable_interrupts(void) {
+	/* Enable interrupts to start playing again */
+	gsc_writel(0,&(harmony_audio->hpa->dstatus)); 
+	return 0;
+}
+
+static int harmony_enable_interrupts(void) {
+	/* Enable interrupts to start playing again */
+	gsc_writel(DSTATUS_IE,&(harmony_audio->hpa->dstatus)); 
+	return 0;
+}
+
+/*
+ * silence()
+ *
+ * This subroutine fills in a buffer starting at location start and
+ * silences for length bytes.  This references the current
+ * configuration of the audio format.
+ *
+ */
+
+static int harmony_silence(unsigned char * buffer,int start, int length) {
+
+	u8 silence_char = 0;
+
+	/* Despite what you hear, silence is different in
+	   different audio formats.  */
+
+	switch (harmony_audio->data_format) {
+		case HARMONY_DF_16BIT_LINEAR: silence_char = 0; break;
+		case HARMONY_DF_8BIT_ULAW:	silence_char = 0x55; break;
+		case HARMONY_DF_8BIT_ALAW:	silence_char = 0xff; break;
+		default: silence_char = 0;
+	}
+
+	memset(aligned_buf+start,silence_char, length);
+	return 0;
+}
+
+
+static int harmony_audio_open(struct inode *inode, struct file *file)
+{
+	int i;
+	u32	cntl;
+
+	/* Clear out the state of all the buffers */
+	for (i=0;i<MAX_BUFS;i++) {
+		harmony_audio->buf_state[i] = HARMONY_BUF_EMPTY;
+	}
+	harmony_audio->frames_so_far = 0;
+	harmony_audio->done = 0;
+	harmony_audio->outstanding_buffers = 0; 
+	harmony_audio->format_initialized = 0;
+	
+/* Start off in a balanced mode. */
+	
+
+	/* Clear out all the buffers and flush to cache */
+	harmony_silence(aligned_buf,0,4096*MAX_BUFS);
+	CHECK_WBACK_INV(aligned_buf,4096*MAX_BUFS);
+
+	while((cntl = gsc_readl(&harmony_audio->hpa->cntl)) & CNTL_C);
+
+	return 0;
+}
+
+/*
+ * Release (close) the audio device.
+ */
+
+static int harmony_audio_release(struct inode *inode, struct file *file)
+{
+	harmony_audio->format_initialized=0;
+	
+	return 0;
+}
+static loff_t harmony_audio_llseek(struct file *file, loff_t offset, int whence)
+{
+	printk(KERN_ERR "harmony: llseek\n");
+	return -ENODEV;
+}
+
+static ssize_t harmony_audio_read(struct file *file,
+                                char *buffer,
+                                size_t count,
+                                loff_t *ppos)
+{
+	printk(KERN_ERR "harmony: read\n");
+	return -ENODEV;
+}
+
+static int find_free_buffer(void) {
+
+	int i,buf_to_fill_in = -1;
+
+	for (i=MAX_BUFS-1;i>=0;i--) {
+		if (harmony_audio->buf_state[i] == HARMONY_BUF_EMPTY) {
+			buf_to_fill_in = i;
+		}
+	}
+	return buf_to_fill_in;
+}
+
+
+/* Here is the place where we try to recognize file format.
+   Sun/NeXT .au files began with the string .snd
+   At offset 12 is specified the encoding.
+   At offset 16 is specified speed rate
+   At Offset 20 is specified the numbers of voices
+*/
+
+#define four_bytes_to_u32(start) (file_header[start] << 24)|\
+                                  (file_header[start+1] << 16)|\
+                                  (file_header[start+2] << 8)|\
+                                  (file_header[start+3]);
+
+#define test_rate(tested,real_value,harmony_value) if((tested)<=(real_value))\
+                                                    { harmony_audio->sample_rate=harmony_value; harmony_update_control(); return;}
+
+static void harmony_format_auto_detect(const char * buffer, int block_size)
+{
+	u8 file_header[24];
+	u32 start_string;
+	
+	if(block_size>24)
+	{
+		copy_from_user(file_header,buffer,24);
+		start_string=four_bytes_to_u32(0);
+		
+		if((file_header[4]==0)&&(start_string==0x2E736E64)) {
+			u32 format;
+			u32 nb_voices;
+			u32 speed;
+			
+			format=four_bytes_to_u32(12);
+			nb_voices=four_bytes_to_u32(20);
+			speed=four_bytes_to_u32(16);
+			
+			switch (format) {
+			case HARMONY_MAGIC_8B_ULAW:
+				harmony_audio->data_format=HARMONY_DF_8BIT_ULAW;
+				break;
+			case HARMONY_MAGIC_8B_ALAW:
+				harmony_audio->data_format=HARMONY_DF_8BIT_ALAW;
+				break;
+			case HARMONY_MAGIC_16B_LINEAR:
+				harmony_audio->data_format=HARMONY_DF_16BIT_LINEAR;
+				break;
+			default:
+				
+				harmony_set_control(HARMONY_DF_16BIT_LINEAR,HARMONY_SR_22KHZ,HARMONY_SS_MONO);
+				return;
+				
+			}
+			switch(nb_voices) {
+			case HARMONY_MAGIC_MONO:
+				harmony_audio->stereo_select=HARMONY_SS_MONO;
+				break;
+			case HARMONY_MAGIC_STEREO:
+				harmony_audio->stereo_select=HARMONY_SS_STEREO;
+				break;
+			default:
+				harmony_audio->stereo_select=HARMONY_SS_MONO;
+				break;
+			}
+			test_rate(speed,5513,HARMONY_SR_5KHZ);
+			test_rate(speed,6615,HARMONY_SR_6KHZ);
+			test_rate(speed,8000,HARMONY_SR_8KHZ);
+			test_rate(speed,9600,HARMONY_SR_9KHZ);
+			test_rate(speed,11025,HARMONY_SR_11KHZ);
+			test_rate(speed,16000,HARMONY_SR_16KHZ);
+			test_rate(speed,18900,HARMONY_SR_18KHZ);
+			test_rate(speed,22050,HARMONY_SR_22KHZ);
+			test_rate(speed,27429,HARMONY_SR_27KHZ);
+			test_rate(speed,32000,HARMONY_SR_32KHZ);
+			test_rate(speed,33075,HARMONY_SR_33KHZ);
+			test_rate(speed,37800,HARMONY_SR_37KHZ);
+			test_rate(speed,44100,HARMONY_SR_44KHZ);
+			test_rate(speed,48000,HARMONY_SR_48KHZ);
+		}
+	}
+	harmony_set_control(HARMONY_DF_16BIT_LINEAR,HARMONY_SR_22KHZ,HARMONY_SS_MONO);
+	return;
+}
+#undef four_bytes_to_u32
+#undef test_rate
+
+
+
+
+static ssize_t harmony_audio_write(struct file *file,
+                                 const char *buffer,
+                                 size_t size_count,
+                                 loff_t *ppos)
+{
+
+	u32 status;
+	int total_count = (int) size_count;
+	int count = 0;
+	int frame_size;
+	int buf_to_fill_in = 0;
+	long timeout ;
+	int dstatus,cntl;
+
+	if(!harmony_audio->format_initialized) 
+	   harmony_format_auto_detect(buffer,total_count);
+	
+	while(count < total_count) {
+
+		/* Wait until we're out of control mode */
+		while ((status = gsc_readl(&(harmony_audio->hpa->cntl))) >> 31); 
+
+		/* Figure out which buffer to fill in */
+		timeout = 0;
+		buf_to_fill_in = HARMONY_BUF_NONE;
+		while ((buf_to_fill_in<0) && (timeout<100000)) {
+			buf_to_fill_in = find_free_buffer();
+			if (buf_to_fill_in < 0) {
+				udelay(10);
+				timeout++;
+			}
+		}
+		if (timeout==100000) {
+			return -1;
+		}
+
+		/* Figure out the size of the frame */
+		if ((total_count - count) > 4095) {
+			frame_size = 4096;
+		} else {
+			frame_size = total_count - count;
+			/* Clear out the buffer, since there we'll only be 
+			   overlaying part of the old buffer with the new one */
+			harmony_silence(aligned_buf,(4096*buf_to_fill_in), 4096);
+		}
+
+		/* Copy the page to an aligned buffer */
+		copy_from_user(aligned_buf+(4096*buf_to_fill_in), buffer,frame_size );
+		CHECK_WBACK_INV(aligned_buf,4096*MAX_BUFS);
+
+		harmony_audio->buf_state[buf_to_fill_in] = HARMONY_BUF_FILLED; 
+
+		harmony_audio->done = 0;
+		count += frame_size;
+
+		if (frame_size < 4096) {
+			count = total_count;
+			harmony_audio->done = 1;
+		}
+
+
+	dstatus = gsc_readl(&harmony_audio->hpa->dstatus);
+
+	cntl = gsc_readl(&harmony_audio->hpa->cntl);
+#if 0
+printk("write: buf: %i frame: %i done: %i cntl: 0x%x dstatus: 0x%x\n",buf_to_fill_in,harmony_audio->frames_so_far,harmony_audio->done,cntl,dstatus);
+#endif
+
+
+		if (harmony_audio->frames_so_far == 1) {
+			gsc_writel(__pa(aligned_buf+(4096*0)),&(harmony_audio->hpa->pnxtadd));  
+			gsc_writel(__pa(graveyard),&(harmony_audio->hpa->rnxtadd));  
+			harmony_enable_interrupts();
+		}
+
+		harmony_audio->frames_so_far++;
+	}
+
+	return count;
+}
+static unsigned int harmony_audio_poll(struct file *file,
+                                     struct poll_table_struct *wait)
+{
+	printk(KERN_ERR "harmony: poll\n");
+	return -ENODEV;
+}
+
+#define DBGEV printk
+#define DBGX printk
+#define DBGP
+
+static int harmony_audio_ioctl(struct inode *inode,
+                                struct file *file,
+                                unsigned int cmd,
+                                unsigned long arg)
+{
+
+
+	unsigned long flags;
+	int ival;
+	u32 new_format,newrate;
+	
+	switch (cmd) {
+	case OSS_GETVERSION:		/* _SIOR ('M', 118, int) */
+		DBGX("OSS_GETVERSION\n");
+		ival = SOUND_VERSION;
+		return put_user(ival, (int *) arg);
+
+	case SNDCTL_DSP_GETCAPS:	/* _SIOR ('P',15, int) */
+		DBGX("SNDCTL_DSP_GETCAPS\n");
+		ival = DSP_CAP_DUPLEX | DSP_CAP_BATCH ;
+		return put_user(ival, (int *) arg);
+
+	case SNDCTL_DSP_GETFMTS:	/* _SIOR ('P',11, int) */
+		DBGX("SNDCTL_DSP_GETFMTS\n");
+		ival = (AFMT_S16_BE | AFMT_MU_LAW | AFMT_A_LAW ); 
+		return put_user(ival, (int *) arg);
+		break;
+
+	case SOUND_PCM_READ_RATE:	/* _SIOR ('P', 2, int) */
+/*
+		I have no idea what this should be. 
+*/
+		ival = 0;	
+		return put_user(ival, (int *) arg);
+
+	case SNDCTL_DSP_SPEED:
+
+		if (get_user(ival, (int *) arg))
+			return -EFAULT;
+		if (ival) {
+			switch(ival) {
+				case 8000: newrate = HARMONY_SR_8KHZ; break;
+				case 16000: newrate = HARMONY_SR_16KHZ; break; 
+				case 27428: newrate = HARMONY_SR_27KHZ; break; 
+				case 32000: newrate = HARMONY_SR_32KHZ; break; 
+				case 48000: newrate = HARMONY_SR_48KHZ; break; 
+				case 9600: newrate = HARMONY_SR_9KHZ; break; 
+				case 5125: newrate = HARMONY_SR_5KHZ; break; 
+				case 11025: newrate = HARMONY_SR_11KHZ; break; 
+				case 18900: newrate = HARMONY_SR_18KHZ; break; 
+				case 22050: newrate = HARMONY_SR_22KHZ; break; 
+				case 37800: newrate = HARMONY_SR_37KHZ; break; 
+				case 44100: newrate = HARMONY_SR_44KHZ; break; 
+				case 33075: newrate = HARMONY_SR_33KHZ; break; 
+				case 6615: newrate = HARMONY_SR_6KHZ; break; 
+				default: printk("Could not match rate %d\n",ival); newrate = HARMONY_SR_8KHZ;
+			}
+			harmony_set_rate(newrate);
+		} else {
+			ival = harmony_audio->sample_rate;
+		}
+		return put_user(ival,(int*) arg);
+
+	case SNDCTL_DSP_STEREO:		/* _SIOWR('P', 3, int) */
+		if (get_user(ival, (int *) arg))
+			return -EFAULT;
+		if (ival != 0 && ival != 1)
+			return -EINVAL;
+		harmony_set_stereo(ival);
+		return put_user(ival, (int *) arg);
+
+	case SNDCTL_DSP_GETBLKSIZE:	/* _SIOWR('P', 4, int) */
+		ival = 4096;
+		return put_user(ival, (int *) arg);
+	case SNDCTL_DSP_RESET:
+		return 0;
+
+	case SNDCTL_DSP_SETFMT:		/* _SIOWR('P',5, int) */
+		if (get_user(ival, (int *) arg)) {
+			printk("arg, couldn't get arg\n");
+			return -EFAULT;
+		}
+		if (ival != AFMT_QUERY) {
+			switch (ival) {
+				case AFMT_MU_LAW: new_format = HARMONY_DF_8BIT_ULAW; break;
+				case AFMT_A_LAW:	new_format = HARMONY_DF_8BIT_ALAW; break;
+				case AFMT_U16_BE:	new_format = HARMONY_DF_16BIT_LINEAR; break; 
+				default: {
+					printk("Invalid sound format %d\n",ival);
+					return -EINVAL;
+				}
+			}
+			harmony_set_format(new_format);
+		} else {
+			switch (harmony_audio->data_format) {
+				case HARMONY_DF_8BIT_ULAW: ival = AFMT_MU_LAW; break;
+				case HARMONY_DF_8BIT_ALAW: ival = AFMT_A_LAW; break;
+				case HARMONY_DF_16BIT_LINEAR:	ival = AFMT_U16_BE; break;
+				default: ival = 0;
+			}
+		}
+		return put_user(ival, (int *) arg);
+
+	default:
+		DBGP("------ OH NO unknown ioctl 0x%x\n", cmd);
+		return -EINVAL;
+	}
+	DBGP("unimplemented ioctl 0x%x\n", cmd);
+	return -EINVAL;
+}
+static int harmony_audio_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	printk(KERN_ERR "harmony: mmap\n");
+	return -ENODEV;
+}
+
+static void harmony_interrupt(int irq, void *dev, struct pt_regs *regs)
+{
+	u32 dstatus,pcuradd;
+	struct harmony_hpa * hpa;
+	int i, buf_to_free = 0, curbuf = MAX_BUFS;
+
+	/* Setup the hpa */
+
+	hpa = ((struct harmony_dev *)dev)->hpa;
+	
+	
+	/* Read dstatus and pcuradd (the current address) */
+	dstatus = gsc_readl(&hpa->dstatus);
+	pcuradd = gsc_readl(&hpa->pcuradd);
+
+	/* Find the last filled buffer */
+	curbuf = MAX_BUFS;
+	for (i=MAX_BUFS-1;i>=0;i--) {
+		if (harmony_audio->buf_state[i]==HARMONY_BUF_FILLED) {
+			curbuf = i;
+		}
+	}
+	if (curbuf == MAX_BUFS) {
+		if (harmony_audio->done) {
+		} else {
+			printk("harmony_interrupt: ack, nothing to play yet.  No available buffer.\n");
+		}
+	}
+
+	/* Turn off interrupts */
+	harmony_disable_interrupts();
+	dstatus = gsc_readl(&hpa->dstatus);
+
+	/* Check if this is a request to get the next play buffer */
+	if(dstatus & DSTATUS_PN) {
+		gsc_writel(__pa(aligned_buf+(4096*curbuf)), &hpa->pnxtadd);
+		harmony_audio->outstanding_buffers++;
+
+		if (!harmony_audio->done) {
+
+			/* Set the volume; we probably don't need to do this. */
+		
+			/* Transition the playing buffer to empty*/
+
+			buf_to_free = -1;
+			for (i=0;i<MAX_BUFS;i++) {
+				if (harmony_audio->buf_state[i]==HARMONY_BUF_PLAYING) {
+					buf_to_free = i;
+				}
+			}
+			if (buf_to_free == -1) {
+			} else {
+				harmony_audio->buf_state[buf_to_free] = HARMONY_BUF_EMPTY;
+			}
+
+			/* Transition the buffers that are ready to be played to playing*/
+
+			buf_to_free = -1;
+
+			for (i=0;i<MAX_BUFS;i++) {
+				if (harmony_audio->buf_state[i]==HARMONY_BUF_READY_TO_PLAY) {
+					buf_to_free = i;
+				}
+			}
+			if (buf_to_free == -1) {
+			} else {
+				harmony_audio->buf_state[buf_to_free] = HARMONY_BUF_PLAYING;
+			}
+			harmony_audio->buf_state[curbuf] = HARMONY_BUF_READY_TO_PLAY;
+
+			harmony_enable_interrupts();
+		}
+	}
+
+	/* Check if we're being asked to fill in a recording buffer */
+	if(dstatus & DSTATUS_RN) {
+
+		/* Not supported yet */
+		gsc_writel(__pa(graveyard) , &hpa->rnxtadd);
+		harmony_audio->outstanding_buffers--;
+	}
+	if (harmony_audio->done && (!harmony_audio->outstanding_buffers)) {
+		harmony_disable_interrupts();	
+	}
+}
+
+
+
+int harmony_audio_init(struct harmony_dev * harmony_device)
+{
+   int ret;
+   int cntl;
+   
+   harmony_audio=harmony_device;
+   
+	/* Request that IRQ */
+	request_irq(harmony_audio->irq, &harmony_interrupt, 0 ,"harmony", (void *) harmony_audio);
+
+   	ret = register_sound_dsp(&harmony_audio_fops, -1);
+	if (ret < 0) {
+		printk("Harmony: Error registering\n");
+		return -EFAULT;
+	}
+	harmony_set_control(HARMONY_DF_16BIT_LINEAR,HARMONY_SR_22KHZ,HARMONY_SS_MONO);
+
+	/* Clear the buffers so you don't end up with crap in the buffers. */ 
+
+	harmony_silence(aligned_buf,0,4096*MAX_BUFS);
+
+	/* Make sure this makes it to cache */
+	CHECK_WBACK_INV(aligned_buf,4096*MAX_BUFS);
+
+
+	/* Wait around until we're out of control mode */
+	while((cntl = gsc_readl(&harmony_audio->hpa->cntl)) & CNTL_C);
+	return 0;
+}
+
+
+

--------------4695CB23E470794E9F8738B7--


From - Thu Nov 08 21:15:15 2018
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X-Mozilla-Keys:                                                                                 
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From: marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] palo, update to README.INSTALL
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Xref: news.gmane.org gmane.linux.ports.parisc:9297

A little update for STI users                                         
                                                                      
>And need to add "console=ttyS0" parameter too!                       
>                                                                     
If you want to use the STI-console this parameter become              
"console=tty"                                                         
And do not forget to update the /dev/console too!                     
                                                                      
Thomas                                                                


From - Thu Nov 08 21:15:15 2018
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From: "Phillip D. Beal" <pdbeal@louisville.edu>
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Subject: [parisc-linux] Question for the Faq
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Xref: news.gmane.org gmane.linux.ports.parisc:9298

Hey,

I thought I'd post this to be added to the faq, as I was stumped on this
problem for a while, and I think some people might hit the same problem.

Q: The system boots up on the sTI Console but no "login:" prompt appears,
what do I do?

A: Uncomment the tty0 in /etc/inittab.

Just a thought....I spent a couple of days trying to figure out why the
console didn't completely work and I found that the tty's were commented
out under /etc/inittab.  


-- 
Phillip Beal                           ___           _               _   
Electrical and Computer Engineering   | _ ) ___ __ _| |___  _ _  ___| |_ 
pdbeal@louisville.edu                 | _ \/ -_) _` | |_ /_| ' \/ -_)  _|
http://www.bealz.net/                 |___/\___\__,_|_/__(_)_||_\___|\__|


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] The plan for SOM, ELF32 and ELF64.
Date: Tue, 1 Jun 1999 14:21:47 +0200
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In-Reply-To: <Pine.LNX.3.96.990531230648.8814C-100000@devserv.devel.redhat.com>; from Alex deVries on Mon, May 31, 1999 at 11:16:34PM -0400
Xref: news.gmane.org gmane.linux.ports.parisc:9299

On Mon, May 31, 1999 at 11:16:34PM -0400, Alex deVries wrote:
> The bad news is that we have a challenge no matter what we do.  The
> problems are that:
> 
> - we don't have a version of ld for SOM in binutils, which means we can't
>   really cross compile properly

.. and Jeff Law declined to put SOM support into BFD :-)

> The route we've planned to take is:
> 
> - focus on SOM only for kernel and userland, but not the linker.  When we
> need to link SOM userland, we'll have to do it on HPUX.

Or get sufficient HPUX binary compatibility that the HPUX linker works
under Linux/PARISC.  Of course the SOM loader is the first tiny part of that.

> - at some point Cygnus will deliver on their HP sponsored gcc support for
> PARISC 2.0, which should have some ELF64 code we can borrow. It's
> understood that the ELF32 and 64 specs have a lot in common.

You said you were unsure whether the release date for any of that stuff
was public knowledge.  Is there any public indication of dates yet?

> No reasonable distribution will be SOM based, so we're going to have to
> get ELF done before we get to that point.

> Let me know if I'm mistaken on any of this.

that all fits with my memory.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: R P Herrold <herrold@owlriver.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Administrivia and a question was: [parisc-linux] Question for the
 Faq
Date: Sat, 20 Jan 2001 09:39:26 -0500 (EST)
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Xref: news.gmane.org gmane.linux.ports.parisc:9300

On Sat, 20 Jan 2001, Phillip D. Beal wrote:

> I thought I'd post this to be added to the faq, as I was stumped on this
> problem for a while, and I think some people might hit the same problem.

<snip good 'hint and kink type' contribution>

1. The submission got me thinking.  I just examined
http://parisc-linux.org/faq.html --- and there is no listing
of a formal role-address for an 'editor' of FAQ content.  So
it will probably be lost in the essectially unsearchable
archive at:
http://puffin.external.hp.com/mailing-lists/parisc-linux/


2, I was going to address the question of who is responsible
for making sure these gems to not get lost to the
administratative contact on the mailing list, so I checked
http://parisc-linux.org/lists.html -- no mention of the
role-address for parisc-linux-owner@thepuffingroup.com or
owner-parisc-linux@thepuffingroup.com.

Of course the first entry on that page, for the announce
archive is a dead link ...
http://parisc.thepuffingroup.com/mailing-lists/parisc-linux-announce


3. So I checked the mailer headers -- nope- the list
namagement headers are not there, of this sort from another
list:

List-Help: <http://www.suncoastlug.org/lists.html>
List-Unsubscribe:
     <mailto:majordomo@owlriver.com?body=unsubscribe%20slug>
List-Subscribe:
    <mailto:majordomo@owlriver.com?body=subscribe%20slug%20YourName>
List-Owner: <mailto:owner-slug@owlriver.com> (Human contact
    for the list)
List-Post: <mailto:slug@owlriver.com>
Sender: owner-slug@owlriver.com

Nope, no help there.


4.  In getting to the project webpages, I pasted
parisc-linux-owner@thepuffingroup.com, and editted that down
to www.thepuffingroup.com -- which went through two redirects
to get to: http://parisc-linux.org/

A one line trailer might be useful:

See the website: http://parisc-linux.org/


-------------------------------

I don't see problems so much as too much work for too few
hands, resulting in the technical side getting done first (as
it must be a priority, lest the project be Yet Anither Dead
Open Source Project [tm]).  Pollyanna would say they were
'opportunities'.

I can file a good bug report describing what I see -- I can
follow documentation with the best of them -- I stand in awe
of Alex, Grant and the rest of the coding team on the depth of
their knowledge in getting the port up and running.

So my question is: How may one contribute at an editorial and
project infrastructure level?  I wish to do so, and bet others
on the list do too.

-- Russ Herrold


From - Thu Nov 08 21:15:16 2018
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From: Jane Vinet <jvinet@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Administrivia and a question was: [parisc-linux] Question for theFaq
Date: Sat, 20 Jan 2001 10:46:11 -0500
Organization: Linuxcare
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To: R P Herrold <herrold@owlriver.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:9301

Thanks Russ for your comments, I will try to have these issues addressed
this week.

Jane

R P Herrold wrote:
> 
> On Sat, 20 Jan 2001, Phillip D. Beal wrote:
> 
> > I thought I'd post this to be added to the faq, as I was stumped on this
> > problem for a while, and I think some people might hit the same problem.
> 
> <snip good 'hint and kink type' contribution>
> 
> 1. The submission got me thinking.  I just examined
> http://parisc-linux.org/faq.html --- and there is no listing
> of a formal role-address for an 'editor' of FAQ content.  So
> it will probably be lost in the essectially unsearchable
> archive at:
> http://puffin.external.hp.com/mailing-lists/parisc-linux/
> 
> 2, I was going to address the question of who is responsible
> for making sure these gems to not get lost to the
> administratative contact on the mailing list, so I checked
> http://parisc-linux.org/lists.html -- no mention of the
> role-address for parisc-linux-owner@thepuffingroup.com or
> owner-parisc-linux@thepuffingroup.com.
> 
> Of course the first entry on that page, for the announce
> archive is a dead link ...
> http://parisc.thepuffingroup.com/mailing-lists/parisc-linux-announce
> 
> 3. So I checked the mailer headers -- nope- the list
> namagement headers are not there, of this sort from another
> list:
> 
> List-Help: <http://www.suncoastlug.org/lists.html>
> List-Unsubscribe:
>      <mailto:majordomo@owlriver.com?body=unsubscribe%20slug>
> List-Subscribe:
>     <mailto:majordomo@owlriver.com?body=subscribe%20slug%20YourName>
> List-Owner: <mailto:owner-slug@owlriver.com> (Human contact
>     for the list)
> List-Post: <mailto:slug@owlriver.com>
> Sender: owner-slug@owlriver.com
> 
> Nope, no help there.
> 
> 4.  In getting to the project webpages, I pasted
> parisc-linux-owner@thepuffingroup.com, and editted that down
> to www.thepuffingroup.com -- which went through two redirects
> to get to: http://parisc-linux.org/
> 
> A one line trailer might be useful:
> 
> See the website: http://parisc-linux.org/
> 
> -------------------------------
> 
> I don't see problems so much as too much work for too few
> hands, resulting in the technical side getting done first (as
> it must be a priority, lest the project be Yet Anither Dead
> Open Source Project [tm]).  Pollyanna would say they were
> 'opportunities'.
> 
> I can file a good bug report describing what I see -- I can
> follow documentation with the best of them -- I stand in awe
> of Alex, Grant and the rest of the coding team on the depth of
> their knowledge in getting the port up and running.
> 
> So my question is: How may one contribute at an editorial and
> project infrastructure level?  I wish to do so, and bet others
> on the list do too.
> 
> -- Russ Herrold
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
Jane Vinet, Director Professional Services/Canadian Operations
Linuxcare, Inc. 613.562.9260 (tel), 613.562.9700 fax
jvinet@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the Revolution


From - Thu Nov 08 21:15:16 2018
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From: "Carlos O'Donell Jr." <patofiero@home.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ftp, gcc, etc...
Date: Sat, 20 Jan 2001 13:00:04 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:9302

Josiah,

Hello parisc-linux! 
(Yes, this is my first time posting to this list, to thank the hard
workers and show you that something is coming out of your work!)

My colleagues and I are building a 48 Node (715/50) PA-RISC cluster
(http://baldric.uwo.ca).
We are an Undergraduate Supercomputing intiative and we've been building
clusters for the past two years, so if you would like to get in contact
with us, we would be more than willing to help you out.

Our original cluster setup had been using HPUX + MPI, but the
combination was both painful and difficult.
Thanks to the wonderful people on this mailing list, we have begun to
switch our machines over to a softer more friendlier linux.

> I was curious as to which package includes ftp as one of it's binaries.

I would recommend just grabbing the ftp source and compiling it.
An excellent exercise in XC or native compilation on a HPPA box.
One day you will be forced to compile something.

We have two XC boxes PIII/450 and PIII/700 doing compiles around the
clock ;)
 
> which packages do I need to install on the hp machine to allow configure,
> make, gcc, etc... to work together?

The standard NFS tarball has all the tools you'll need.
I can run down what it is that you would need exactly, since we already
have our cluster running 2 nodes and compiling using MPICH 1.2.1.

We usually just:
1. rboot the machine.
2. init scripts format and copy the tarball to the drive.
3. second set of scripts configure.
4. reboot.
5. new node functional.

For those of you who doubt it... I did natively compile MPICH 1.2.1 and
it worked :P
(And if Paul is reading this, don't reboot "puff"... I don't care if we
forgot to compile in unix socket support!;)

Just contact me at carlos@baldric.uwo.ca

Cheers,
Carlos O'Donell Jr.
-----------------------------
Baldric Project
University of Western Ontario
http://www.baldric.uwo.ca
-----------------------------


From - Thu Nov 08 21:15:16 2018
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Russ,
We *need* editorial help in a serious way.
Give us some time to figure this out.  This project has had some rough
moments in the past two years and I don't think we want to rock the
boat on this issue(s) either.

Here are what I see as some of the issues:

To become a document maintainer:
o demonstrate they can be "trusted" or have existing folks vouch for them
o *user* of parisc-linux  (a vested interest in the information)
o Understand the *usage*  (not necessarily the underlying technology)

parisc-linux.org:
o clarify process for determining who should have CVS access
o find a maintainer for the document "ownership list" (Russ? :^)
o simple html interface so anyone can update web site
o timely, regular updates CVS repository -> Website

Of the above, I think parisc-linux team needs to decide on a process
first. It's been very informal up to now.  We will not give CVS access
to anyone who asks for it since it's clear that won't work and isn't
"the linux way" (to paraphrase the HP slogan).  We do need to
"scrub" the current CVS access of people who are no longer active
contributors.

I'm certain that over the course of this year, the binutils/gcc/glibc/linux
CVS repositories are going to be less active and the website will
see explosive activity. Primarily because most of the technical
developement will move out of our "sandbox" and into the "upstream"
sources. However, for user documents, I expect parisc-linux.org to
be the focal point.

Jane can help setup the details for you (and others) to contribute.
(thanks jane! You *are* doing a great job despite recent difficulties!)

R P Herrold wrote:
> 1. The submission got me thinking.  I just examined
> http://parisc-linux.org/faq.html --- and there is no listing
> of a formal role-address for an 'editor' of FAQ content.  So
> it will probably be lost in the essectially unsearchable
> archive at:

I don't agree the FAQ should become a repository for *all* "gems"
posted to parisc-linux mailing list. Our FAQ should be a starting point
for people with questions about parisc-linux. Not a database of trivia.
We have recipes and other documents the FAQ can point to provide details
about how to set things up, or workarounds for broken things.

> So my question is: How may one contribute at an editorial and
> project infrastructure level?  I wish to do so, and bet others
> on the list do too.

Agreed. Russ, is there a specific document you'd like to work on?
(eg FAQ or one of the recipes)

thanks all,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Subject: Re: Administrivia and a question was: [parisc-linux] Question for the 
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Xref: news.gmane.org gmane.linux.ports.parisc:9304


R P Herrold writes...

> On Sat, 20 Jan 2001, Phillip D. Beal wrote:
> 
> > I thought I'd post this to be added to the faq, as I was stumped on this
> > problem for a while, and I think some people might hit the same problem.
> 
> <snip good 'hint and kink type' contribution>
> 
> 1. The submission got me thinking.  I just examined
> http://parisc-linux.org/faq.html --- and there is no listing
> of a formal role-address for an 'editor' of FAQ content.  So
> it will probably be lost in the essectially unsearchable
> archive at:
> http://puffin.external.hp.com/mailing-lists/parisc-linux/

Dann Frazier is in the process of setting up a bug tracking system. Actually 
the BTS is setup but is dependent on the creation of mailing lists for each 
category in the BTS. We have already proposed a "website" category but perhaps 
a "FAQ" category would be useful too. Once this is done you'll have a place to 
direct feedback and contributions for all aspects of the port. Hopefully we'll 
have this setup this week.

> 2, I was going to address the question of who is responsible
> for making sure these gems to not get lost to the
> administratative contact on the mailing list,

It's informal right now but the BTS should help make it better.

> so I checked
> http://parisc-linux.org/lists.html -- no mention of the
> role-address for parisc-linux-owner@thepuffingroup.com or
> owner-parisc-linux@thepuffingroup.com.

We are going to be moving all the mailing lists to Mailman and each list will 
have an owner address once that happens.

> Of course the first entry on that page, for the announce
> archive is a dead link ...
> http://parisc.thepuffingroup.com/mailing-lists/parisc-linux-announce

That's only because no one has sent anything to the announce list in the Year 
2001 :) The move to mailman/pipermail will also fix that.

> 3. So I checked the mailer headers -- nope- the list
> namagement headers are not there, of this sort from another
> list:

Mailman wins here too.

> 4.  In getting to the project webpages, I pasted
> parisc-linux-owner@thepuffingroup.com, and editted that down
> to www.thepuffingroup.com -- which went through two redirects
> to get to: http://parisc-linux.org/
> 
> A one line trailer might be useful:
> 
> See the website: http://parisc-linux.org/

Hopefully this is something Jane can have done.

> I can file a good bug report describing what I see -- I can

Please do so when the BTS is announced.

> So my question is: How may one contribute at an editorial and
> project infrastructure level?  I wish to do so, and bet others
> on the list do too.

Grant answered this one.

HTH,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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"Phillip D. Beal" writes...

> Hey,
> 
> I thought I'd post this to be added to the faq, as I was stumped on this
> problem for a while, and I think some people might hit the same problem.
> 
> Q: The system boots up on the sTI Console but no "login:" prompt appears,
> what do I do?
> 
> A: Uncomment the tty0 in /etc/inittab.
> 
> Just a thought....I spent a couple of days trying to figure out why the
> console didn't completely work and I found that the tty's were commented
> out under /etc/inittab.  

Yes this was mentioned on the list before but failed to make it into the FAQ.

Added.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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Subject: [parisc-linux] question about disk caching....
Date: Sat, 20 Jan 2001 21:47:55 -0700
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I got this with the latest kernel bits from cvs:

frodo:/etc# useradd -m randolph                                                 
frodo:/etc# passwd randolph                                                     
passwd: Unknown user randolph                                                   
frodo:/etc# sync                                                                
frodo:/etc# passwd randolph                                                     
Enter new UNIX password:                                                        

seems like a caching issue? This is booting entirely off a local SCSI
harddisk. Any ideas what might be causing this?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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Bustayoass@aol.com wrote:
> 
> Hello,
>       I saw your post about your j210xc, and I was wondering if by
> chance
> you knew where I could get some manuals or troubleshooting references
> on a
> j210xc. When I power it up, it tests itself, and after a long while,
> it comes
> up with 8 yellow boxes at the bottom of the screen. I cannot type any
> commands, it only lets me change terminal options. I think that if I
> get into
> setup, I can configure it properly, but I don't know how to access it.
> If you
> can give me any help, I would greatly appreciate it.
>       Thanks,
>       Matt


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Subject: Re: [parisc-linux] New XC available (was Re: glibc build failing)
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On Wed, 17 Jan 2001, Matt Taggart wrote:

> Up till this merge we were still running bits from September 25th which didn't 
> have a "stable" number. So someone needs to make our glibc -O2 clean.

No, someone needs to fix gcc.  Investigating...

-- 
Linuxcare.  Support for the Revolution.


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> I got this with the latest kernel bits from cvs:
[...]
> seems like a caching issue? This is booting entirely off a local SCSI
> harddisk. Any ideas what might be causing this?

many thanks for mkp for elucidating this.....

<mkp_> In your case it might be nscd that breaks things
<mkp_> Do you have it running?
<tausq> hrmm... good point, let me turn it off.. i see that nfsroot has it on by default
<mkp_> Name Service Caching Daeon
<mkp_> +m
<tausq> ah ha!
* tausq thinks mkp is onto something here..
<ggg> tausq: but would nscd affect local disk? (adduser/passwd prob)
<tausq> ggg: it may affect nss...
<ggg> nss? *sigh*
<mkp_> nscd caches getpwent() lookups, among other things
<ggg> ic
<tausq> indeed with nscd on, i get the problem, with it off everything seems to be ok
<mkp_> There we go
<tausq> good call mkp
<ggg> tausq: could you reply to your mail?
<tausq> sure, i'll just quote this irc conversation :)

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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On Tue, 1 Jun 1999, Philipp Rumpf wrote:

> > I'm mailing this because I'm not entirely sure what I'm doing is correct.
> Neither am I, but arch/parisc/hp/boot/README seems to say something different.

That file is actually from Jason Eckhardt's boot loader.  How do you think
it's incorrect?

> > The way I understand it, the kernel we cross compile on Linux is in fact
> > a broken ELF32 file, which doesn't really matter, because at this point we
> > don't need the kernel to have any loader information itself. 
> 
> I think we should build a binary image of the kernel (that is not ELF) like
> we do for x86.

You're right, raw binary should work just fine.

> > However, to actually boot you need IPL, which requires SOM linking, so
> > that much must be done on HPUX.
> This I do not understand. According to arch/parisc/hp/boot/README, the IPL is
> stored in a special binary format which we could generate from ELF like we
> do for the kernel image.

Hm.  Okay then.  So what we need to do is fix the cross compiling of
mkipl.  I'll have a look at this.

> > and it'll create a kernel and boot header that should just boot right
> > away.  That way to do kernel work (and not bootstrap work), you don't need
> > HPUX at all.
> I think the vast majority of parisc boxes runs HP-UX at the moment so it
> probably would not be a big win.

Being able to cross compile really is a big win.  There's a lot of people
with slower 700 series boxes.  Also, building and booting is a lot easier
if you can xcompile on your PIII.  Booting into HPUX is pretty slow.

- Alex


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To: Jim Buttafuoco <jim@tylerdrive.org>
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On Thu, Jan 18, 2001 at 08:52:06PM +0000, Richard Hirst wrote:
> On Thu, Jan 18, 2001 at 10:17:24AM -0500, Jim Buttafuoco wrote:
> > Hi,
> > 
> > I have been trying to get my 2 9000/710's to boot for a couple of months
> > now.  Attached is the latest log file from my boot. 
> > 
> > The 2 problems that I see are the ramdisk is NOT seen and the BOOTP
> > fails.  I have used TCPDUMP to look at the packets coming and going from
> > the system.  All I see is the RBOOTP stuff.  The ramdisk is valid as far
> > as I can tell. (I mounted it via the loop fs).  Should it be compressed
> > with ZIP???.
> 
> 
> > SCSI subsystem driver Revision: 1.00
> > sim700: Couldn't get consistent shared memory
> > sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86
> > scsi0: Revision 0x0
> > Post test1, istat 05, sstat0 00, dstat 81
> > sim700: WARNING IRQ probe failed, (returned 0)
> > scsi0: test 1 FAILED: dsps: exp 0xab93001d, got 0x00000000
> 
> You have problems with the scsi driver also.  dstat=81 says 
> "Illegal Instruction Detected", which implies the scsi chip cannot
> access memory properly.  If the network chip has the same problem,
> that would explain your other problems.  As you can load the kernel
> ok, I guess the h/w is ok and we are not setting something up
> correctly.  I have a 715/75 which uses the same scsi and network
> drivers; I'll try that in a while - havn't booted it for a month
> or so.

You'll be pleased to hear that the latest kernel has similar problems
on my 715/75.  I'm investigating.

Richard


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Subject: Re: [parisc-linux] Trouble booting a 710 (bushmaster)
Date: Mon, 22 Jan 2001 13:52:20 +0000
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To: Jim Buttafuoco <jim@tylerdrive.org>
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On Mon, Jan 22, 2001 at 11:10:40AM +0000, Richard Hirst wrote:
> You'll be pleased to hear that the latest kernel has similar problems
> on my 715/75.  I'm investigating.

New versions of pgalloc.h and sim700.c committed.  Please build a new
kernel and try again.

Richard


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From: "Sean Anaya" <sanaya@gr.hp.com>
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Subject: [parisc-linux] newbie question
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Hi all,

I have acquired an HP Visualize C180-XP machine at work (first time I have
played with an HP unix box) and would like to install HP Linux on it. Since
I don't have access to another linux machine for tftpbooting it seems the
best way to install linux is to make a bootable CD. So my question is how do
I burn a bootable CD once I have everything that needs to be on the CD. I
have access to a CD burner/software on a windows machine, but I don't know
if that will work for an HP unix box. Any help or suggestions on a better
way to install linux would be greatly appreciated. I'm more familiar with
older Sun machines than I am with HP's.

Thanks,

Sean Anaya
sanaya@gr.hp.com


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trouble booting a 710 (bushmaster)
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To: Jim Buttafuoco <jim@tylerdrive.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:9314

On Mon, Jan 22, 2001 at 10:02:46AM -0500, Jim Buttafuoco wrote:
> 	This also fails.  attached is the boot log.  

> SCSI subsystem driver Revision: 1.00
> sim700: Couldn't get consistent shared memory
> sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
> scsi0: Revision 0x0
> Post test1, istat 05, sstat0 00, dstat 84
> sim700: WARNING IRQ probe failed, (returned 0)
> scsi0: WARNING: target data areas are not dma coherent!
> scsi0: test 1 completed ok.

Well, scsi is happier now.  The messages above are expected, and
test 1 passing means the scsi chip can access memeory ok.

> scsi0 : LASI/Simple 53c7xx
> scsi0: Unable to abort command for target 0
> scsi0: Unable to send Bus Device Reset for target 0
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: could not halt NCR chip, stage 0
> scsi0: Unable to abort command for target 1
> scsi0: Unable to send Bus Device Reset for target 1
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<

Those messages might be caused by an unterminated scsi bus, or by
a problem with interrupts.

The network problem still looks like interrupts from the 82596 are
disabled somehwere and not getting to the processor.

Still seems likely to me that the kernel is not enabling some interrupts
properly for the 710 bushmaster machines.

Anyone on the list got a similar machine working?  The h/w database
lists quite a few people as owning one of these boxes.

My 715 now works as far as scsi and network are concerned, but (a) I
have to disable nscd, (b) tar hangs, and (c) I have disabled parallel
port support.  nscd and tar both seem to go in to a loop calling
sched_yield() from libc.

Richard


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From: "Phillip D. Beal" <pdbeal@louisville.edu>
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Subject: [parisc-linux] Kernel Swapping yet?
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Xref: news.gmane.org gmane.linux.ports.parisc:9315

Hey,

I've been playing around with the 715 I got to boot, and I've found an
odd occurance.  If I open an existing file with vi, and hit escape the
kernel crashes.  It doesn't matter if the file is locally or on a remote
system it does it either way.  So, I remeber the instructions from the
PA-Linux 0.1 CD saying the kernel isn't useing the swap space yet.  Is
this still true? I know the problem is not vi because the kernel dies
even if I use vi on the remote system.  The PARISC system dies when I go
to hit ESC to exit insert mode of vi.

Thanks,
-- 
Phillip Beal                           ___           _               _   
Electrical and Computer Engineering   | _ ) ___ __ _| |___  _ _  ___| |_ 
pdbeal@louisville.edu                 | _ \/ -_) _` | |_ /_| ' \/ -_)  _|
http://www.bealz.net/                 |___/\___\__,_|_/__(_)_||_\___|\__|


From - Thu Nov 08 21:15:17 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] tar hangs on 715/75
Date: Mon, 22 Jan 2001 16:50:14 +0000
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Hi,
  tar (and nscd) hang on my 715/75.  Same binaries/libraries work on
the B180.  The hang is in __pthread_acquire() called from
pthread_initialize().  On the B180 the code sequence goes like this
(tracing branches):

IAOQ: 40161eff 4015df47         <pthread_initialize+348>
IAOQ: 4015df53 4006b63f         <_init+1136>
IAOQ: 4006b65f 00000103         <__sigprocmask+32>
>>>> Heading for space 0 <<<<
IAOQ: 4006b66f 4006b687         <__sigprocmask+48>
IAOQ: 4006b693 40161f03         <__sigprocmask+84>
IAOQ: 40161f37 4015df37         <pthread_initialize+404>
IAOQ: 4015df43 4006e983         <_init+1120>
IAOQ: 4006e9af 4006e82f         <__cxa_atexit+44>
IAOQ: 4006e867 400860cf         <__new_exitfn+56>
IAOQ: 400860db 40160ed7         <____strtod_l_internal+15484>
IAOQ: 40160f07 40160f0b         <__pthread_mutex_lock+48>
IAOQ: 40160f0f 4016107f         <__pthread_mutex_lock+56>
IAOQ: 40161083 40164c63         <__pthread_mutex_lock+428>
IAOQ: 40164c93 4016508f         <__pthread_alt_lock+48>
IAOQ: 401650cf 40165107         <__pthread_acquire+64>
IAOQ: 4016511f 40164c97         <__pthread_acquire+144>
IAOQ: 40164cab 40164d53         <__pthread_alt_lock+72>
IAOQ: 40164d57 40164d63         <__pthread_alt_lock+244>
IAOQ: 40164d7b 40161087         <__pthread_alt_lock+280>
IAOQ: 4016109b 4006e86b         <__pthread_mutex_lock+452>
IAOQ: 4006e893 4006e8c7         <__new_exitfn+100>
etc

while on the 715/75 it goes like this:

IAOQ: 40161eff 4015df47         <pthread_initialize+348>
IAOQ: 4015df53 4006b63f         <_init+1136>
IAOQ: 4006b65f 00000103         <__sigprocmask+32>
>>>> Heading for space 0 <<<<
IAOQ: 4006b66f 4006b687
IAOQ: 4006b693 40161f03
IAOQ: 40161f37 4015df37
IAOQ: 4015df43 4006e983
IAOQ: 4006e9af 4006e82f
IAOQ: 4006e867 400860cf
IAOQ: 400860db 40160ed7
IAOQ: 40160f07 40160f0b
IAOQ: 40160f0f 4016107f
IAOQ: 40161083 40164c63
IAOQ: 40164c93 4016508f         <__pthread_alt_lock+48>
IAOQ: 401650df 4015dba7         <__pthread_acquire+80>
IAOQ: 4015dbb3 400f546f         <_init+208>
IAOQ: 400f5473 00000103         <sched_yield+4>
>>>> Heading for space 0 <<<<


from which I conclude that __pthread_acquire(int *spinlock) found the
spinlock held.

Relevant bit of pthread_initialize() looks like this:

  sigprocmask(SIG_BLOCK, &mask, NULL);
  /* Register an exit function to kill all other threads. */
  /* Do it early so that user-registered atexit functions are called
     before pthread_*exit_process. */
#ifndef HAVE_Z_NODELETE
  if (__builtin_expect (&__dso_handle != NULL, 1))
    __cxa_atexit ((void (*) (void *)) pthread_atexit_process, NULL,
                  __dso_handle);
  else
#endif
    __on_exit (pthread_onexit_process, NULL);


Do other people see this problem on 715/old machines?  Just type 'tar';
if you have the problem you'll never see the usage message.

Even better, does anyone have any suggestions as to what might be
causing it?  I am using taggarts new tarball nfsroot.

Richard


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From: bame@riverrock.org
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] First benchmark results
Date: Mon, 22 Jan 2001 10:28:18 -0700
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Executive summary:
    HP-UX is shown out-of-the-box, with no parameter adjustments which
    could help it show better in these benchmarks.

    HP-UX, a mature much-tuned kernel and Linux, a not fully functional
    and never tuned on HP hardware kernel, are competitive in a great
    many areas.  HP-UX is faster in some areas, and Linux is faster than
    HP-UX in fewer areas.  This portends a bright future for Linux on parisc!

    HPUX, is MUCH faster than Linux at fork/exec and pipe and unix/tcp
    socket bandwidths.  Note: Linux fork/exec got a
    lot faster with the recent cache-flushing changes.  Linux wins
    big on stat, open/close, file create/delete (sometimes > 100:1).

    Linux beats HPUX in the 2-process context-switch trials, but not
    in the 8 or 16-process trials.

    The 100MHz gecko is roughly 8x slower than the 400MHz C3000 on
    compute-bound benchmarks, re-emphasizing that MHz is not an entirely
    trustworthy performance predictor.

Caveats:
    HPUX was not optimized for this benchmark.  Changing the fs_async flag
    might make a huge improvement in the file-system-related performance.

    The "TCP conn" data should not be trusted at all.

    LOTS OF DATA IS OBSCURED and possibly MISREPRESENTED by this summary.
    The hoards of data upon which this summary is based is available
    at http://puffin.external.hp.com/~bame/lmbench-2beta1/results.

    c3k-hpux is an active in-use HPUX box with variable loads runing
    all the standard daemons therefore some benchmark results are slow.

    Lmbench 2beta1 by its name is clearly "beta" software (though it seems
    to work fine).  More info about lmbench: http://www.bitmover.com/lmbench

    Some test programs on Linux still require manual intervention.

Key:
    c3k-j09-3	C3000 Pre-cache-flushing (Jan 9) kernel 32-bit Linux
    c3k-j19-3	C3000 Post-cache-flushing (Jan 19) kernel 32-bit Linux
    712-100	100MHz 9000/712 (gecko) Jan 19 Linux
    c3k-hpux	C3000 HPUX 10.20 (*** an active in-use system ***)


                 L M B E N C H  2 . 0   S U M M A R Y
                 ------------------------------------
		 (Alpha software, do not distribute)

Basic system parameters
----------------------------------------------------
Host                 OS Description              Mhz
                                                    
--------- ------------- ----------------------- ----
c3k-j19-6 Linux 2.4.0-t      parisc64-linux-gnu  400
712-100   Linux 2.4.0-t        parisc-linux-gnu  100
c3k-j09-3 Linux 2.4.0-t        parisc-linux-gnu  400
c3k-j19-3 Linux 2.4.0-t        parisc-linux-gnu  400
c3k-hpux  HP-UX B.10.20    hppa2.0-hp-hpux10.20  400
c3k-hpux  HP-UX B.10.20    hppa2.0-hp-hpux10.20  400
c3k-hpux  HP-UX B.10.20    hppa2.0-hp-hpux10.20  400
c3k-hpux  HP-UX B.10.20    hppa2.0-hp-hpux10.20  400

Processor, Processes - times in microseconds - smaller is better
----------------------------------------------------------------
Host                 OS  Mhz null null      open selct sig  sig  fork exec sh  
                             call  I/O stat clos TCP   inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ----
c3k-j19-6 Linux 2.4.0-t  400 0.85 1.48 8.74   10    90 2.44   18 2513  13K  61K
712-100   Linux 2.4.0-t  100 3.07 5.10   44   47   249   12   72 5651  41K 229K
c3k-j09-3 Linux 2.4.0-t  400 0.77 1.34 8.35 8.96    63 2.31   14  11K 115K 433K
c3k-j19-3 Linux 2.4.0-t  400 0.76 1.32 8.12 8.88    61 2.26   14 1674  11K  53K
c3k-hpux  HP-UX B.10.20  400 0.34        21   25    55 3.42   12  699 1873 9950
c3k-hpux  HP-UX B.10.20  400 0.33        21   25    54 3.42   12  699 1876 9946
c3k-hpux  HP-UX B.10.20  400 0.33        21   25    55 3.42   12  698 1866 6678
c3k-hpux  HP-UX B.10.20  400 0.33        21   25    55 3.42   12  700 1871 6715

Context switching - times in microseconds - smaller is better
-------------------------------------------------------------
Host                 OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
                        ctxsw  ctxsw  ctxsw ctxsw  ctxsw   ctxsw   ctxsw
--------- ------------- ----- ------ ------ ------ ------ ------- -------
c3k-j19-6 Linux 2.4.0-t 1.870 1.8800 1.5800     25     84      29      97
712-100   Linux 2.4.0-t    23    156    617    175    625     179     627
c3k-j09-3 Linux 2.4.0-t 1.420 1.4400 1.2400     22     83      27      95
c3k-j19-3 Linux 2.4.0-t 1.360 1.3000 1.1500     22     82      27      95
c3k-hpux  HP-UX B.10.20 3.760 3.6500    273    119    288      92     184
c3k-hpux  HP-UX B.10.20 3.760 3.6800 3.7500 3.7000     32 6.31000      60
c3k-hpux  HP-UX B.10.20 3.760 3.6300 3.5100 3.5600     13 6.84000      64
c3k-hpux  HP-UX B.10.20 4.320 3.7700 3.6300 3.7000     10 5.92000      51

*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host                 OS 2p/0K  Pipe AF     UDP  RPC/   TCP  RPC/ TCP
                        ctxsw       UNIX         UDP         TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
c3k-j19-6 Linux 2.4.0-t 1.870    10   19    29   144    38   218  208
712-100   Linux 2.4.0-t    23    43   84   153         260       1032
c3k-j09-3 Linux 2.4.0-t 1.420    21   49    41          36           
c3k-j19-3 Linux 2.4.0-t 1.360 9.501   19    28          36       8.2M
c3k-hpux  HP-UX B.10.20 3.760    20   22    42    93    39   103 2.0M
c3k-hpux  HP-UX B.10.20 3.760    19   22    41    93    39   101 2.0M
c3k-hpux  HP-UX B.10.20 3.760    19   21    41    93    39   101 2.0M
c3k-hpux  HP-UX B.10.20 4.320    19   21    41    93    39   102 2.0M

File & VM system latencies in microseconds - smaller is better
--------------------------------------------------------------
Host                 OS   0K File      10K File      Mmap    Prot    Page	
                        Create Delete Create Delete  Latency Fault   Fault 
--------- ------------- ------ ------ ------ ------  ------- -----   ----- 
c3k-j19-6 Linux 2.4.0-t     11 2.9577     35 7.4666     1944            20
712-100   Linux 2.4.0-t     78     11    184     20     3546            42
c3k-j09-3 Linux 2.4.0-t 9.0001 1.0000    170 3.0000 174.2860           937
c3k-j19-3 Linux 2.4.0-t 9.0001 1.0000     28 3.0000     1423              
c3k-hpux  HP-UX B.10.20   1123    598   1694    598 191.8620 6.480    5504
c3k-hpux  HP-UX B.10.20   1123    598   1754    598 181.1960 6.880    5738
c3k-hpux  HP-UX B.10.20   1136    598   1724    598 184.6730 4.232    5418
c3k-hpux  HP-UX B.10.20   1123    598   1724    598 185.1890 4.300    5475

*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------
Host                OS  Pipe AF    TCP  File   Mmap  Bcopy  Bcopy  Mem   Mem
                             UNIX      reread reread (libc) (hand) read write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
c3k-j19-6 Linux 2.4.0-t   47   49   39     73    514    196    201  505   432
712-100   Linux 2.4.0-t 7.35 6.61 6.13     12     69     34     26   69    52
c3k-j09-3 Linux 2.4.0-t   47   49   41     76    509    195    199  509   430
c3k-j19-3 Linux 2.4.0-t   48   49   42     76    513    193    200  504   430
c3k-hpux  HP-UX B.10.20  406  528  298    490    391    164    163  503   452
c3k-hpux  HP-UX B.10.20  402  537  315    506    509    207    208  504   467
c3k-hpux  HP-UX B.10.20  407  537  312    508    509    207    206  494   467
c3k-hpux  HP-UX B.10.20  406  538  311    505    509    205    209  499   467

Memory latencies in nanoseconds - smaller is better
    (WARNING - may not be correct, check graphs)
---------------------------------------------------
Host                 OS   Mhz  L1 $   L2 $    Main mem    Guesses
--------- -------------  ---- ----- ------    --------    -------
c3k-j19-6 Linux 2.4.0-t   400 7.503 7.5030    184    No L1 cache?
712-100   Linux 2.4.0-t   100    22     22    223    No L1 cache?
c3k-j09-3 Linux 2.4.0-t   400


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From: Greg Ingram <ingram@symsys.com>
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Subject: Re: [parisc-linux] tar hangs on 715/75
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On Mon, 22 Jan 2001, Richard Hirst wrote:

[ snip! ]

> Do other people see this problem on 715/old machines?  Just type 'tar';
> if you have the problem you'll never see the usage message.
> 
> Even better, does anyone have any suggestions as to what might be
> causing it?  I am using taggarts new tarball nfsroot.

My C100 barfs (Bus error) when I run tar or make (and probably other
programs I haven't discovered).  dmesg shows:

!!die_if_kernel: tar(6969): Unaligned data reference 28
 
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011
r0-3     00000000 40149938 4015dc7b 401470d4
r4-7     40168148 00000000 00000031 001e8481
r8-11    bb0001a8 bb0001a0 00000001 4001ada0
r12-15   4001ad7c 00000000 0009c5b0 00000000
r16-19   00000000 00000001 0000b71b 40168148
r20-23   001e8000 40159f14 bb000454 00000008
r24-27   40161460 00000000 401470d4 00076808
r28-31   00000016 00000000 bb000700 4006e987
sr0-3    00005187 00005187 00000000 00005187
sr4-7    00005187 00005187 00005187 00005187
 
IASQ: 00005187 00005187 IAOQ: 4015e0ab 4015e0af
 IIR: 0c6011d4    ISR: 00005187  IOR: 401470d4
ORIG_R28: 00000000 

I don't know if this may in any way be related.

- Greg



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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: Re: [parisc-linux] Trouble booting a 710 (bushmaster)
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I have the same SCSI message on my 720. The problem here
is definitly only one device, the TEAC floppy on the
SCSI bus. When I disconnect it, it runs perfect.

So this message also shows problems with special devices.
I don't know, if there are incaptibilities in the devices
(under HP sometimes this drive is seen as boot device, some
times not....).

Ot there is a problem in the routine probing the devices ....

With friendly regards
	Christoph P.


Richard Hirst wrote:
> 
> On Mon, Jan 22, 2001 at 10:02:46AM -0500, Jim Buttafuoco wrote:
> >       This also fails.  attached is the boot log.
> 
> > SCSI subsystem driver Revision: 1.00
> > sim700: Couldn't get consistent shared memory
> > sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
> > scsi0: Revision 0x0
> > Post test1, istat 05, sstat0 00, dstat 84
> > sim700: WARNING IRQ probe failed, (returned 0)
> > scsi0: WARNING: target data areas are not dma coherent!
> > scsi0: test 1 completed ok.
> 
> Well, scsi is happier now.  The messages above are expected, and
> test 1 passing means the scsi chip can access memeory ok.
> 
> > scsi0 : LASI/Simple 53c7xx
> > scsi0: Unable to abort command for target 0
> > scsi0: Unable to send Bus Device Reset for target 0
> > scsi0: Unable to do SCSI bus reset
> > scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> > scsi0: could not halt NCR chip, stage 0
> > scsi0: Unable to abort command for target 1
> > scsi0: Unable to send Bus Device Reset for target 1
> > scsi0: Unable to do SCSI bus reset
> > scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> 
> Those messages might be caused by an unterminated scsi bus, or by
> a problem with interrupts.
> 
> The network problem still looks like interrupts from the 82596 are
> disabled somehwere and not getting to the processor.
> 
> Still seems likely to me that the kernel is not enabling some interrupts
> properly for the 710 bushmaster machines.
> 
> Anyone on the list got a similar machine working?  The h/w database
> lists quite a few people as owning one of these boxes.
> 
> My 715 now works as far as scsi and network are concerned, but (a) I
> have to disable nscd, (b) tar hangs, and (c) I have disabled parallel
> port support.  nscd and tar both seem to go in to a loop calling
> sched_yield() from libc.
> 
> Richard
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

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Subject: [parisc-linux] Bug in palo/palo/error.c
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In the file `palo/palo/error.c' a bug is in the char array
`*errormessages[]'. After `#include "usage.h"' there must be
a comma (or at the end of `usage.h', but this is a bad solution,
as I cannot use this long text on another position).

I got the error "10" but the message of error "11" as message "0"
(usage) and message "1" are concanated together !!

By the way: The PALO documentation should include a hint, that
I have to produce a PC-(intel)-compatible disk partition table.
My SCSI disk, I prepared was connected to a SUN and I have forgotten,
that there are differences in the layout, although it is no
problem to build the code on a x86 machine and run plao on 
a sun. 

So, if palo (or HP itself) has the restriction, only to handle 
X86 (DOS) Partition table format, then please mention it....

With friendly regards

	Christoph


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Subject: Re: [parisc-linux] Creating a bootable image.
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Philipp Rumpf wrote:
> > and it'll create a kernel and boot header that should just boot right
> > away.  That way to do kernel work (and not bootstrap work), you don't need
> > HPUX at all.
> 
> I think the vast majority of parisc boxes runs HP-UX at the moment so it
> probably would not be a big win.

I think that being able to cross your kernel is a big win, since it
makes the edit-compile-test cycle much shorter if you've got a spare
machine off of which to netboot.

I've got the linker script documentation printed and waiting for my move
to safely complete, but someone who's got their hands in already should
feel free to pre-empt me.

Mike

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First of all, you need a linux box to prepare the CD image
(with palo) and to generate a CD image. This image can be 
burned on a Windows box, as far as the burning program can
accept that.

	Christoph

Sean Anaya wrote:
> 
> Hi all,
> 
> I have acquired an HP Visualize C180-XP machine at work (first time I have
> played with an HP unix box) and would like to install HP Linux on it. Since
> I don't have access to another linux machine for tftpbooting it seems the
> best way to install linux is to make a bootable CD. So my question is how do
> I burn a bootable CD once I have everything that needs to be on the CD. I
> have access to a CD burner/software on a windows machine, but I don't know
> if that will work for an HP unix box. Any help or suggestions on a better
> way to install linux would be greatly appreciated. I'm more familiar with
> older Sun machines than I am with HP's.
> 
> Thanks,
> 
> Sean Anaya
> sanaya@gr.hp.com
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: [parisc-linux] strace ??? - is there any ???
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I often use strace to analyse the problems I have with
applications. Espacially I had success in analysing problems
around a bash which is directly called by the kernel
by editing the kernel (init/main.c) to directly start a 
statically linked strace to start the bash.

To analyse the problem on the 720 (handler_interrupt)
I want to repeat this sucessful step, but I miss the
strace. 

Is ther any instrumented for HP PA-RISC ??

With friendly regards

	Christoph



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Subject: Re: [parisc-linux] strace ??? - is there any ???
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On Mon, Jan 22, 2001 at 09:01:15PM +0100, Christoph Plattner wrote:
> I often use strace to analyse the problems I have with
> applications. Espacially I had success in analysing problems

strace source is in cvs on puffin.external.hp.com, but you need to
check it out and build it yourself at the moment.

Richard


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Subject: Re: tar hangs on 715/75 (spinlock problem)
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On Mon, Jan 22, 2001 at 04:50:14PM +0000, Richard Hirst wrote:
> Hi,
>   tar (and nscd) hang on my 715/75.  Same binaries/libraries work on
> the B180.  The hang is in __pthread_acquire() called from

This is because ldcw behaves differently on the 715/75 and the B180.

Take this code (which is basically a bit of libpthread):


========================= ldcw.c =============================
#include <stdio.h>
#include <time.h>

#define MAX_SPIN_COUNT  32
#define SPIN_SLEEP_DURATION     2000000

extern inline long int
testandset (int *spinlock)
{
  int ret;

  __asm__ __volatile__(
       "ldcw 0(%2),%0"
       : "=r"(ret), "=m"(*spinlock)
       : "r"(spinlock));

  return ret == 0;
}


static void __pthread_acquire(int * spinlock)
{
  int cnt = 0;
  struct timespec tm;

  while (testandset(spinlock)) {
    if (cnt < MAX_SPIN_COUNT) {
      sched_yield();
      cnt++;
    } else {
      tm.tv_sec = 0;
      tm.tv_nsec = SPIN_SLEEP_DURATION;
      nanosleep(&tm, NULL);
      cnt = 0;
    }
  }
}

int s = 1;

int main(int argc, char **argv)
{
//      printf("&s = %p\n", &s);
        __pthread_acquire(&s);

        return 0;
}
================================================================


and compile with "gcc -O -Wall -o ldcw ldcw.c"

Run it on a B180 and it completes; run it on a 715/75 and it loops
in __pthread_acquire().

If you uncomment the printf at the beginning of main() it completes
on the 715/75 also.

Is there some cacheline requirements on spinlocks that libpthread needs
to take in to account?

Richard


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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: Further (build ?): [parisc-linux] strace ??? - is there any ???
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Hallo Mr Hirst !

Now I have following problem. What is the clean
way to build such autoconfigured tool cross ?

Is it via `--target=hppa-linux', but here it will build for i386 !
Or is it `--host=hppa-linux --build=i386-linux' ??? 

Or have I to define a CC=/usr/parisc/bin/hppa-linux-gcc ?

Must I use CC= also on configure and make or only on make
or configure..... 

... etc....

How to do this in the correct way ?

Thanks

	Christoph


Richard Hirst wrote:
> 
> On Mon, Jan 22, 2001 at 09:01:15PM +0100, Christoph Plattner wrote:
> > I often use strace to analyse the problems I have with
> > applications. Espacially I had success in analysing problems
> 
> strace source is in cvs on puffin.external.hp.com, but you need to
> check it out and build it yourself at the moment.
> 
> Richard
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
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Subject: Re: Further (build ?): [parisc-linux] strace ??? - is there any ???
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Again:  The configure script cannot find `config.h.in'
Is this missed in the CVS version of this day ?
	
	Christoph


Christoph Plattner wrote:
> 
> Hallo Mr Hirst !
> 
> Now I have following problem. What is the clean
> way to build such autoconfigured tool cross ?
> 
> Is it via `--target=hppa-linux', but here it will build for i386 !
> Or is it `--host=hppa-linux --build=i386-linux' ???
> 
> Or have I to define a CC=/usr/parisc/bin/hppa-linux-gcc ?
> 
> Must I use CC= also on configure and make or only on make
> or configure.....
> 
> ... etc....
> 
> How to do this in the correct way ?
> 
> Thanks
> 
>         Christoph
> 
> Richard Hirst wrote:
> >
> > On Mon, Jan 22, 2001 at 09:01:15PM +0100, Christoph Plattner wrote:
> > > I often use strace to analyse the problems I have with
> > > applications. Espacially I had success in analysing problems
> >
> > strace source is in cvs on puffin.external.hp.com, but you need to
> > check it out and build it yourself at the moment.
> >
> > Richard
> >
> > ---------------------------------------------------------------------------
> > To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> > `unsubscribe' as the subject.
> 
> --
> -------------------------------------------------------------------------
> private:        christoph.plattner@dot.at
> company:        christoph.plattner@alcatel.at

-- 
-------------------------------------------------------------------------
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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: tar hangs on 715/75 (spinlock problem)
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On Mon, Jan 22, 2001 at 09:32:19PM +0000, Richard Hirst wrote:
> On Mon, Jan 22, 2001 at 04:50:14PM +0000, Richard Hirst wrote:
> > Hi,
> >   tar (and nscd) hang on my 715/75.  Same binaries/libraries work on
> > the B180.  The hang is in __pthread_acquire() called from
> 
> This is because ldcw behaves differently on the 715/75 and the B180.

Grant tells me spinlock words have to be the first word of a cacheline,
so that would be why my example code broke.  However, libpthreads uses
spinlocks and doesn't appear to force any alignment.

I think the libpthreads spinlock definitions come from
glibc/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h, struct
pthread_mutex_t, spinlock is inside __m_lock.  No alignment is
specified.  When debugging tar, I found the spinlock word at
0x4014df4c.

Richard


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Pinout for RS232/AUI cable(A2263-62045) for 712 card (A2263-66536)
------------------------------------------------------------------
There is a card for the 712(HP part #A2263-66536) that provides 2nd AUI lan
and 2nd DB9 RS232 port. The back of the card has a 26 pin connector and the
15pin AUI and 9pin RS232 connectors are provided by a special Y cable
(A2263-62045) which are pretty hard to find. Here is the pinout of this cable
in case you need to make one.

These diagrams are looking at the end of the connector not the back. Make
sure to take that into account if building a cable. Pin numbering is taken
from the numbers on the plastic in the cable. If a pin is not connected it
is represented as an "o". The numbers outside the bottom connectors are the
pin numbers that that pin is connected to on the top connector.


                 ---------------------------------
                 \     o  o  3  o  o  o  7  8  9 /
                  \  10 11 12 13  o  o 16 17 18 /
                   \  19 20 21 22  o 24 25 26  /
                     -------------------------

               12 13    20 19                 18  9  8  7  24
       ---------------------------           -----------------
  AUI   \ o  o  6  5  o  3  2  o /           \ 1  2  3  4  5 / RS232
         \  o 10 11 12  o 14 15 /             \  6  7  8  9 /
          ---------------------                ------------
              22 21  3    11 10                 26 25 17 16


Send questions or problems to Matt Taggart <taggart@fc.hp.com>



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Subject: Re: Further (build ?): [parisc-linux] strace ??? - is there any ???
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On Mon, Jan 22, 2001 at 10:46:23PM +0100, Christoph Plattner wrote:
> Again:  The configure script cannot find `config.h.in'
> Is this missed in the CVS version of this day ?

autoheader will generate that for you.

I normally build strace natively on my B180, will try and recall how
to cross-compile.

Richard


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On Mon, Jan 22, 2001 at 10:43:12PM +0100, Christoph Plattner wrote:
> Hallo Mr Hirst !
> 
> Now I have following problem. What is the clean
> way to build such autoconfigured tool cross ?

HOSTCC=gcc CC=hppa-linux-gcc ./configure --target=hppa-linux --host=hppa-linux
make


worked for me, except for a problem with redefinition of struct dirent64.
I hacked that out of /opt/palinux/hppa-linux/include/linux/dirent.h to
temporarily get round it.

I havn't checked the binary works.  You might have to remove a chunk
of code from strace/defs.h, depending on how new your glibc is.  With
a new glibc you need to remove the following block:

  /* Hack until I figure out why we don't call ptrace in glibc, rather
   * than the system call direct.
   */
  static inline long raw_ptrace(int req, pid_t pid, void *addr, long data)
  {
          long res, ret;
  
          if (req > 0 && req < 4)
                  data = (long)&ret;
          res = ptrace(req, pid, addr, data);
          if (res >= 0 && req > 0 && req < 4) {
                  errno = 0;
                  return ret;
          }
          return res;
  }
  
  #define ptrace raw_ptrace


Richard


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> Hm.  Okay then.  So what we need to do is fix the cross compiling of
> mkipl.  I'll have a look at this.
          
There is some confusion here. The IPL does not have to be SOM, in fact, it
wouldn't work correctly if it was. It's a raw binary format created using
HP's linker by passing parameters to give it a zero offset, etc. (And
which Jason Eckardt suggests could also be extracted from a valid ELF
format binary given the right script.)

The confusion exists as currently, it can only be produced under HP/UX as
there are still some issues with the xcompiler/binutils under x86 for the
PA-RISC target. 

I haven't looked at this very closely, but when I attempted to generate a
raw binary of the bootloader code with the xcompiler/binutils it either
segfaulted or generated a 4 GB sparse file. There was a double free within
binutils which was fixed, and some minor version mismatches, but still, it
does not generate a working binary.

Before even trying to compile the kernel and getting it booting with the
current xcompiler/binutils, building a working IPL with the xcompiler
environment should be done.  This will tell us that yes in fact it is
doing the Right Thing and it will be far easier to debug. 

Chris



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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: tar hangs on 715/75 (spinlock problem)
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Richard Hirst wrote:
> On Mon, Jan 22, 2001 at 09:32:19PM +0000, Richard Hirst wrote:
> > On Mon, Jan 22, 2001 at 04:50:14PM +0000, Richard Hirst wrote:
> > > Hi,
> > >   tar (and nscd) hang on my 715/75.  Same binaries/libraries work on
> > > the B180.  The hang is in __pthread_acquire() called from
> > 
> > This is because ldcw behaves differently on the 715/75 and the B180.
> 
> Grant tells me spinlock words have to be the first word of a cacheline,

16-byte aligned.

> so that would be why my example code broke.  However, libpthreads uses
> spinlocks and doesn't appear to force any alignment.

Yeah - this is definitely broken. taggart and jsm are going to play
with the alignments. jsm couldn't say for sure off-hand which processors
don't really care about the alignment. But we agreed it doesn't matter
since the architecture requires it and some of the processor models do
care.

> 
> I think the libpthreads spinlock definitions come from
> glibc/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h, struct
> pthread_mutex_t, spinlock is inside __m_lock.  No alignment is
> specified.  When debugging tar, I found the spinlock word at
> 0x4014df4c.

I spoke with Scott Norton (http://www.hp.com/hpbooks/authors/norton.html)
and he made it clear the POSIX spec defines pthread_mutex_t to be an
"opaque" type - ie it's arch specific.  _pthread_fastlock and
pthread_spinlock_t types must be aligned to correctly work under parisc
and Scott made it clear these are not POSIX data types.
Perhaps UNIX98 or some other standard.

What's baffled me is did this ever work under HPUX?

HP published a CD with a bunch of GNU/open source tools for HPUX 11.
The glibc version shipped was 1.2.6. Only has references to pthread_mutex_t
and none for "spinlock".

So HPUX only supports the pthread_mutex_t and not pthread_spinlock_t.
The HPUX kernel support for pthread_mutex_t seems to be __pthread_spinlock_t.
__pthread_spinlock_t contains an array where the init sequence figures
out where the 16byte alignment falls in the array and uses that offset.
I don't want to endorse that as *the* strategy to use since the linux
kernel obviously uses compiler built-ins to get's it's alignments right.

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: Re: tar hangs on 715/75 (spinlock problem)
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> On Mon, Jan 22, 2001 at 04:50:14PM +0000, Richard Hirst wrote:
>
> This is because ldcw behaves differently on the 715/75 and the B180.
>
> Grant tells me spinlock words have to be the first word of a cacheline,

Both the PARISC 1.1 and PARISC 2.0 architecture specifications require
that ldcw and ldcd targets be 16 byte aligned. What actually happens
when the target is not 16 byte aligned is unspecified. I believe that
on PCXT' processors you get an unaligned fault. I think ldcw works
on 4 byte boundaries on PCXL2, PCXU and PCXW, but I am not certain of
that. As you can already see, it does not work on other processors like
PCXS, PCXT and PCXL, and the behaviour may be different on each one.

> so that would be why my example code broke.  However, libpthreads uses
> spinlocks and doesn't appear to force any alignment.
>
> I think the libpthreads spinlock definitions come from
> glibc/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h, struct
> pthread_mutex_t, spinlock is inside __m_lock.  No alignment is
> specified.  When debugging tar, I found the spinlock word at
> 0x4014df4c.

I brought this whole issue up a month ago (See "ldcw in __pthread_acquire"
in the December archive of the parisc-linux mailing list). Matthew Wilcox
suggested adding a 16 byte aligned attribute to fix the problem. Then
a long discussion ensued, discussing the advantages and disadvantages
of doing spinlocks in user space. I think the general consensus was
that we should eventually do an implementation that spins for a while
in user space and then goes to the kernel for arbitration.

So, the long term correct solution should be put on the todo list. But,
for now, Matt Taggart is going to create a hppa specific version of
pthreadtypes.h and make the following changes:

    1) move the __spinlock field in the _pthread_fastlock definition
    to be the first field in the structure.
    2) Add an __attribute__((aligned(16))) to that structure.
    3) Add an __attribute__((aligned(16))) to the pthread_spinlock_t
       type definition.

He'll test this on a C110 to see if the unaligned fault goes away, and
if it does he will check it in. This should also fix the problems with
the same root cause on other processors.

John Marvin
jsm@fc.hp.com


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From: Ulrich Drepper <drepper@redhat.com>
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Grant Grundler <grundler@cup.hp.com> writes:

> > I think the libpthreads spinlock definitions come from
> > glibc/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h, struct
> > pthread_mutex_t, spinlock is inside __m_lock.  No alignment is
> > specified.  When debugging tar, I found the spinlock word at
> > 0x4014df4c.

Then add appropriate alignment.  What's the problem?  We just don't
have to do it for any architecture.

> I spoke with Scott Norton (http://www.hp.com/hpbooks/authors/norton.html)
> and he made it clear the POSIX spec defines pthread_mutex_t to be an
> "opaque" type - ie it's arch specific.  _pthread_fastlock and
> pthread_spinlock_t types must be aligned to correctly work under parisc
> and Scott made it clear these are not POSIX data types.
> Perhaps UNIX98 or some other standard.

The leading underscore should tell you that this is an internal,
private type.

> What's baffled me is did this ever work under HPUX?
> 
> HP published a CD with a bunch of GNU/open source tools for HPUX 11.
> The glibc version shipped was 1.2.6. Only has references to pthread_mutex_t
> and none for "spinlock".

Glibc has no support for HPUX.  I know some people inside HP worked on
it but none of this code is available.  Besides, I doubt that the
LinuxThreads add-on is used on HPUX.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] parisc64 kernel and ret1 (gr29) setup
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Xref: news.gmane.org gmane.linux.ports.parisc:9336

On Thu, Dec 21, 2000 at 04:00:06PM +0000, Richard Hirst wrote:
> Hi,
>   I tried calling ptrace() from a 32 bit app on a 64 bit kernel, and
> the kernel crashed.  sys_ptrace needs a 32 bit wrapper, but that is
> a seperate issue (I think).
> 
> It died at sys_ptrace+0x28, where it tried to use ret1.
> (ret1 = 00000000000517a1):

So, I still havn't fixed this, because I added a syscall wrapper for
sys_ptrace() and that masked the problem.  The wrapper didn't try to
use the incoming r29, and it initialised r29 before calling sys_ptrace().

64 bit functions expect r29 to point to a parameter save area.  I've
made changes in my tree to increase FRAME_SIZE from 64 to 128 bytes on
64 bit, and initialise r29 on syscall entry.  I havn't committed it yet.
I was just going to increase to 80 bytes - 64 bytes save area plus
16 for rp and sp - but Willy thought there was a requirement for the
stack to be 64 byte aligned.
Presumably r29 needs initialising on every call from entry.S and syscall.S
to C code, but I'm not over confident about that, so I thought I'd let
others see my diff so far.  Comments?

Richard


Index: arch/parisc/kernel/syscall.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/syscall.S,v
retrieving revision 1.49
diff -u -r1.49 syscall.S
--- syscall.S	2001/01/20 04:44:04	1.49
+++ syscall.S	2001/01/23 13:03:29
@@ -23,7 +23,13 @@
 	.level		1.1
 #endif
 	.text
-	
+
+#ifdef __LP64__
+#define FRAME_SIZE	128
+#else
+#define FRAME_SIZE	64
+#endif
+
 	.import syscall_exit,code
 	.import syscall_exit_rfi,code
 	.export linux_gateway_page
@@ -94,11 +100,12 @@
 	STREG	%r27, TASK_PT_SAR(%r1)
 
 	loadgp
-
-	ldo	TASK_SZ_ALGN+64(%r1),%r30	/* set up kernel stack */
 
-#ifndef __LP64__
-	/* no need to save these on stack because in wide mode the first 8
+	ldo	TASK_SZ_ALGN+FRAME_SIZE(%r1),%r30	/* set up kernel stack */
+#ifdef __LP64__
+	ldo	-16(%r30),%r29			/* Reference param save area */
+#else
+	/* no need to save these on stack in wide mode because the first 8
 	 * args are passed in registers */
 	stw     %r22, -52(%r30)                 /* 5th argument */
 	stw     %r21, -56(%r30)                 /* 6th argument */
@@ -170,7 +177,7 @@
 	 * C bit set, a non-straced syscall entry results in C and D clear
 	 * in the saved PSW.
 	 */
-	ldo     -TASK_SZ_ALGN-64(%r30),%r1      /* get task ptr */
+	ldo     -TASK_SZ_ALGN-FRAME_SIZE(%r30),%r1      /* get task ptr */
 	ssm	0,%r2
 	STREG	%r2,TASK_PT_PSW(%r1)		/* Lower 8 bits only!! */
 	STREG	%r1,TASK_PT_CR30(%r1)
@@ -224,7 +231,7 @@
 	LDIL_FIXUP(%r1)
 	ldo     R%sys_call_table(%r1), %r19
 
-	ldo     -TASK_SZ_ALGN-64(%r30),%r1      /* get task ptr */
+	ldo     -TASK_SZ_ALGN-FRAME_SIZE(%r30),%r1      /* get task ptr */
 	LDREG   TASK_PT_GR20(%r1), %r20
 	LDREG   TASK_PT_GR26(%r1), %r26		/* Restore the users args */
 	LDREG   TASK_PT_GR25(%r1), %r25
@@ -260,10 +267,10 @@
 	makes a direct call to syscall_trace. */
 	
 tracesys_exit:
-	ldo     -TASK_SZ_ALGN-64(%r30),%r1      /* get task ptr */
+	ldo     -TASK_SZ_ALGN-FRAME_SIZE(%r30),%r1      /* get task ptr */
 	bl	syscall_trace, %r2
 	STREG   %r28,TASK_PT_GR28(%r1)          /* save return value now */
-	ldo     -TASK_SZ_ALGN-64(%r30),%r1      /* get task ptr */
+	ldo     -TASK_SZ_ALGN-FRAME_SIZE(%r30),%r1      /* get task ptr */
 	LDREG   TASK_PT_GR28(%r1), %r28		/* Restore return val. */
 
 	ldil	L%syscall_exit,%r1
@@ -278,7 +285,7 @@
 	ldo	R%tracesys_sigexit(%r2),%r2
 
 tracesys_sigexit:
-	ldo     -TASK_SZ_ALGN-64(%r30),%r1      /* get task ptr */
+	ldo     -TASK_SZ_ALGN-FRAME_SIZE(%r30),%r1      /* get task ptr */
 	bl	syscall_trace, %r2
 	nop
 
Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/entry.S,v
retrieving revision 1.58
diff -u -r1.58 entry.S
--- entry.S	2001/01/13 09:51:57	1.58
+++ entry.S	2001/01/23 13:03:36
@@ -48,7 +48,7 @@
 #include <asm/signal.h>
 
 #ifdef __LP64__
-#define FRAME_SIZE	64
+#define FRAME_SIZE	128
 #else
 #define FRAME_SIZE	64
 #endif
@@ -1787,7 +1787,7 @@
 
 	/* Set the return value for the child */
 child_return:
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
 


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] parisc64 kernel and ret1 (gr29) setup
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On Tue, 23 Jan 2001, Richard Hirst wrote:
> 64 bit functions expect r29 to point to a parameter save area.  I've
> made changes in my tree to increase FRAME_SIZE from 64 to 128 bytes on
> 64 bit, and initialise r29 on syscall entry.  I havn't committed it yet.
> I was just going to increase to 80 bytes - 64 bytes save area plus
> 16 for rp and sp - but Willy thought there was a requirement for the
> stack to be 64 byte aligned.

Yup.

> Presumably r29 needs initialising on every call from entry.S and syscall.S
> to C code

Yes, that too.

Is there any code elsewhere that "knows" the stack frame is 64 bytes
(except for gdb and signal handler frames)?

Alan
-- 
Linuxcare.  Support for the Revolution.


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] parisc64 kernel and ret1 (gr29) setup
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On Wed, Jan 24, 2001 at 01:20:34AM +1100, Alan Modra wrote:
> > I was just going to increase to 80 bytes - 64 bytes save area plus
> > 16 for rp and sp - but Willy thought there was a requirement for the
> > stack to be 64 byte aligned.
> 
> Yup.
> 
> Is there any code elsewhere that "knows" the stack frame is 64 bytes
> (except for gdb and signal handler frames)?

i'm not sure that's the point... knowing the stack frame is 64 byte
aligned allows the compiler to know the alignment of all types being
placed on the stack.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] parisc64 kernel and ret1 (gr29) setup
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Xref: news.gmane.org gmane.linux.ports.parisc:9339

On Wed, Jan 24, 2001 at 01:20:34AM +1100, Alan Modra wrote:
> Is there any code elsewhere that "knows" the stack frame is 64 bytes
> (except for gdb and signal handler frames)?

I don't know of any; the kernel still boots ok with my changes, so
it looks promising.  I'll play a bit more before I commit anything.

Thanks,
  Richard


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From: Matthieu Delahaye <delahaym@esiee.fr>
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jcarlson@macalester.edu wrote:

> I was going to get some packages and such...but it seems that the base .5
> image lacks ftp...

If you want to try it, we made an ftp package:)
http://www.esiee.fr/puffin

ESIEE Team
puffin@esiee.net




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Subject: Re: [parisc-linux] parisc64 kernel and ret1 (gr29) setup
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>> Is there any code elsewhere that "knows" the stack frame is 64 bytes
>> (except for gdb and signal handler frames)?
>
>i'm not sure that's the point... knowing the stack frame is 64 byte
>aligned allows the compiler to know the alignment of all types being
>placed on the stack.

On HP-UX, the 64-bit conventions require only 16-byte alignment for stack 
frames.

Several years ago we made an attempt to establish a 64-byte stack frame 
alignment in the 32-bit conventions, so that the compiler could take 
advantage of certain cache hints available on some PA-RISC CPUs. Because 
of the complexity of assuring that all stack frames in a program obeyed 
this convention, and the growth in average stack use, we abandoned the 
idea.

I don't believe, however, that we ever fixed the 32-bit conventions 
document to reflect this reversal. Unfortunately, it still says that sp 
must be 64-byte aligned. Trust me -- it's wrong. We've never enforced a 
64-byte alignment.

-cary


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  In message <200101231850.KAA26800@adlmail.cup.hp.com>you write:
  > Several years ago we made an attempt to establish a 64-byte stack frame 
  > alignment in the 32-bit conventions, so that the compiler could take 
  > advantage of certain cache hints available on some PA-RISC CPUs. Because 
  > of the complexity of assuring that all stack frames in a program obeyed 
  > this convention, and the growth in average stack use, we abandoned the 
  > idea.
  > 
  > I don't believe, however, that we ever fixed the 32-bit conventions 
  > document to reflect this reversal. Unfortunately, it still says that sp 
  > must be 64-byte aligned. Trust me -- it's wrong. We've never enforced a 
  > 64-byte alignment.
Correct.  I believe it was roughly 1993 when I first saw the 64byte stack
frame alignment in an ABI spec for 32bit PA/HPUX and twiddled GCC
appropriately.

In 1995 GCC's optimizers were made smarter in terms of removing redundant
pointer arithmetic and logical ops which exposed the fact that hpux wasn't
actually providing a 64byte aligned stack :-)  And (of course) I had to
re-adjust the known stack alignment for the PA port to reflect reality.

I haven't looked in any of the newer ABI docs to see if this was ever
corrected.

jeff


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> > Hm.  Okay then.  So what we need to do is fix the cross compiling of
> > mkipl.  I'll have a look at this.
>           
> There is some confusion here. The IPL does not have to be SOM, in fact, it
> wouldn't work correctly if it was. It's a raw binary format created using
> HP's linker by passing parameters to give it a zero offset, etc. (And
> which Jason Eckardt suggests could also be extracted from a valid ELF
> format binary given the right script.)

If the IPL could be extracted from an ELF binary, then it could be produced
on any system which supports cross compiling to HP/UX ELF format.

There also seems to be some confusion about the kernel and its format.
In order to debug it, it needs to be either an ELF or SOM binary with
symbol tables, .stabs info, etc.  Although I haven't looked at the
IPL, I would guess that it is designed to load an ELF binary.  There
are also file system issues.

> The confusion exists as currently, it can only be produced under HP/UX as
> there are still some issues with the xcompiler/binutils under x86 for the
> PA-RISC target. 
> 
> I haven't looked at this very closely, but when I attempted to generate a
> raw binary of the bootloader code with the xcompiler/binutils it either
> segfaulted or generated a 4 GB sparse file. There was a double free within
> binutils which was fixed, and some minor version mismatches, but still, it
> does not generate a working binary.

Obviously, the bootloader will be a pain to debug.  I think that I have
a working cross compiler running under hpux to produce ELF object files
and binaries.  I had a problem with ld which went away when I rebuilt
binutils with no optimization (-O0).

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Josiah Carlson <jcarlson@macalester.edu>
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Subject: [parisc-linux] crt1.o
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Xref: news.gmane.org gmane.linux.ports.parisc:9344

To summarize my current installation:
.5 image copied onto hard drive
base.tgz installed
nfsroot from 10-05-2000
ftp.deb (works great BTW)

>From here I've tried to configure MPICH for compilation...though I keep
getting a crt1.o not found error, even though it exists in /usr/lib.
I tried re-extracting the glibc tarball in /install/debian-hppa, but I
keep getting the same error.
Remembering the problems with caching I tried sync, but that didn't
work.

Just to try something out...I 'm curious as to which file contains the
listing of paths that are searched for libraries by gcc or g++ (or in
general all paths searched by the shell for execution), does anyone know
which file that is?
Or has anyone else had this problem, even after getting crt1.o into
/usr/lib?
Thank you,
 - Josiah


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Subject: Re: [parisc-linux] crt1.o
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> Just to try something out...I 'm curious as to which file contains the
> listing of paths that are searched for libraries by gcc or g++ (or in
> general all paths searched by the shell for execution), does anyone know
> which file that is?

Try running gcc with `-print-search-dirs'.  You can get complete list of gcc
options with `-v --help'.  `-v' may help to see how linker is being run.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > Just to try something out...I 'm curious as to which file contains the
> > listing of paths that are searched for libraries by gcc or g++ (or in
> > general all paths searched by the shell for execution), does anyone know
> > which file that is?
> 
> Try running gcc with `-print-search-dirs'.  You can get complete list of gcc
> options with `-v --help'.  `-v' may help to see how linker is being run.

I suppose I should have said so...but the actual command being used to
find the libraries is ld.  I've tried to figure that command out...but
it's not liking me at all.
I have not tried the -print-search-dirs on my HP machine, but will
tomorrow.
Though in general, how do I add paths to be searched by the OS?
Thank you,
 - Josiah


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] crt1.o
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Xref: news.gmane.org gmane.linux.ports.parisc:9347

On Tue, Jan 23, 2001 at 04:37:40PM -0600, Josiah Carlson wrote:
> To summarize my current installation:
> .5 image copied onto hard drive
> base.tgz installed
> nfsroot from 10-05-2000
> ftp.deb (works great BTW)
> 
> >From here I've tried to configure MPICH for compilation...though I keep
> getting a crt1.o not found error, even though it exists in /usr/lib.

The quote below is from last October - don't know if it will help
you.

Richard


> > 10:~# make mlock 
> > cc     mlock.c   -o mlock
> > /usr/bin/ld: cannot open crt1.o: No such file or directory
> > collect2: ld returned 1 exit status
> > make: *** [mlock] Error 1
> > 
> > 
> 
> According to Bdale, the fix is:
> 
> ln -s /usr/lib /usr/hppa-linux/lib
> 
> randolph


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> > > Just to try something out...I 'm curious as to which file contains the
> > > listing of paths that are searched for libraries by gcc or g++ (or in
> > > general all paths searched by the shell for execution), does anyone know
> > > which file that is?
> > 
> > Try running gcc with `-print-search-dirs'.  You can get complete list of gcc
> > options with `-v --help'.  `-v' may help to see how linker is being run.
> 
> I suppose I should have said so...but the actual command being used to
> find the libraries is ld.  I've tried to figure that command out...but
> it's not liking me at all.
> I have not tried the -print-search-dirs on my HP machine, but will
> tomorrow.
> Though in general, how do I add paths to be searched by the OS?
> Thank you,

Gcc has builtin defaults.  You shouldn't need to specify a search patch
for crt0.o.  Including `-v' on the gcc command will show the stuff that
is being passed to ld.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] Step by step .... 9000/720 and interruption (trap) 18
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Xref: news.gmane.org gmane.linux.ports.parisc:9349

Hallo PA RISC hackers !

I mentioned before, that I have problems using my Apollo 700 (9000/720)
with the Linux here. I build a new cross tool chain and a new
kernel + palo (all from 13.Jan 2001) but I always have the problem of
looping error code:

handler_interruption() pid=1 command='init'

or whatever my first process is. I have instrumented the kernel code
and added the output of the code number (a good idea to have this
fix in the kernel !) and I saw:

	code=18

So I have the code 18 (decimal). In the PA RISC 1.1 manual (your link)
I saw following description:

	18  Data memory protection trap / Unaligned data reference trap

So what does this mean here. An alignment problem ?
Why is this code not handled in the switch/case ?

I always use (I think the 32bit code). Have I set to a parisc64 ?
How can I influence this ?
Which kind of CPU is this in the 720 model ? (I know a 50MHz PA RISC ..)

I hope anybody can help here

	Christoph




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From: Paul Bame <bame@fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Tulip bug "resolution"
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Some may remember I put a hack in drivers/net/tulip/interrupt.c to
avoid a null pointer deref caused by a data structure being referenced
before being allocated.  I've only seen this on B180 I think.  I posted
my patch to the sourceforge tulip project and received the following
reply.  I don't know enough about the network driver stuff and our
changes to it to figure out what to do next.  Maybe this bug has
magically disappeared but I bet not.

	-P

------- Forwarded Message

To: bame@puffin.external.hp.com, jgarzik@mandrakesoft.com
Subject: [Patch #103298] [Bug #124918] packet received prior to buffer allocation cr
Message-Id: <E14LCCc-0008AO-00@usw-sf-web2.sourceforge.net>
Date: Tue, 23 Jan 2001 14:46:14 -0800

Patch #103298 has been updated. 

Project: tulip
Category: Bug fix
Status: Open
Submitted by: paulbame
Assigned to : jgarzik
Summary: [Bug #124918] packet received prior to buffer allocation cr

Follow-Ups:

Date: 2001-Jan-23 14:46
By: nobody

Comment:
bogus patch -- the Tulip receiver is started up after the skbuffs are
allocated. This user must have broken hardware.
- -------------------------------------------------------

- -------------------------------------------------------
For more info, visit:

http://sourceforge.net/patch/?func=detailpatch&patch_id=103298&group_id=13004


------- End of Forwarded Message


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Tulip bug "resolution"
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Xref: news.gmane.org gmane.linux.ports.parisc:9351

Paul Bame wrote:
> 
> Some may remember I put a hack in drivers/net/tulip/interrupt.c to
> avoid a null pointer deref caused by a data structure being referenced
> before being allocated.  I've only seen this on B180 I think.
...
> Maybe this bug has magically disappeared but I bet not.

I suspect it's really fixed.
Here are some thoughts on tulip and IRQ initialization.

In tulip_open():
	o calls request_irq(... &tulip_interrupt, ...)
	o call tulip_init_ring() - sets tp->rx_buffers[].skb to null
	  before allocating them.
	  ...

If a pending IRQ is waiting in Dino, the handler will get called when
the IRQ is enabled by request_irq().  This is potentially a bug in
the Dino IRQ handling...so I looked and saw:

	/* Emulate "Level Triggered" Interrupt
	** Basically, a driver is blowing it if the IRQ line is asserted
	** while the IRQ is disabled.  But tulip.c seems to do that....
	** Give 'em a kluge award and a nice round of applause!
	**
	** The gsc_write will generate an interrupt which invokes dino_isr().
	** dino_isr() will read IPR and find nothing. But then catch this
	** when it also checks ILR.
	*/

But note that tulip.c no longer exists. Tulip has been restructured
into multiple files under drivers/net/tulip/.  The thing to do is
reproduce this problem with current bits.  If it doesn't happen, then
the initialization code in tulip *was* fixed and we should remove the
comment in drivers/gsc/dino.c as well.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: "Thierry SIMONNET" <t.simonnet@esiee.fr>
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Subject: [parisc-linux] Booting 742
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Xref: news.gmane.org gmane.linux.ports.parisc:9352

Hi!

We have a "sidewinder 742i" (VME Bus) running as well as possible (seems to
be like a 715/50).
Working  ;o) :
      - SCSI
      - LAN
      - Both RS232

TO DO :
     - all VME developments (VME networking...) :-(
     - some warnings like "kmem word alignment"
     - testing the parallel port

To continue our investigations and developments, we need some documentations
like user guide and technical documentation. We don't know which VME bus is
used for example.

These workstations are not in the hardware database and there is no way to
add them manually.

Thierry Simonnet
ESIEE Team
http://www.esiee.fr/puffin




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From: Christoph Plattner <christoph.plattner@alcatel.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] One more step: Interruption (trap) 18 on 9000/720
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Xref: news.gmane.org gmane.linux.ports.parisc:9353

Hallo PA RISC hackers !

I mentioned before, that I have problems using my Apollo 700 (9000/720)
with the Linux here. I build a new cross tool chain and a new
kernel + palo (all from 13.Jan 2001) but I always have the problem
of that always repeated error:

handler_interruption() pid=1 command='init'

or whatever my first process is. I have instrumented the kernel code
and added the output of the code number (a good idea to have this
fix in the kernel !) and I saw:

        code=18

So I have the code 18 (decimal). In the PA RISC 1.1 manual (your link)
I saw following description:

        18  Data memory protection trap / Unaligned data reference trap

So what does this mean here. An alignment problem ?
Why is this code not handled in the switch/case ?

I always use (I think the 32bit code). Have I set to a parisc64 ?
How can I influence this ?
Which kind of CPU is this in the 720 model ? (I know a 50MHz PA RISC ..)

I hope anybody can help here

        Christoph




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Subject: Re: Building the Bootloader
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Xref: news.gmane.org gmane.linux.ports.parisc:9354

> If the IPL could be extracted from an ELF binary, then it could be produced
> on any system which supports cross compiling to HP/UX ELF format.

The problem (unless for the confused ones Christopher just showed the light)
is the GNU binutils seem to be buggy at the moment.

> There also seems to be some confusion about the kernel and its format.
> In order to debug it, it needs to be either an ELF or SOM binary with
> symbol tables, .stabs info, etc.

In practice, a System.map should be enough and we don't need to keep an ELF
binary on the disk.

> Although I haven't looked at the IPL, I would guess that it is designed to
> load an ELF binary.

It isn't. Currently the IPL is stored with a raw kernel image to load and
some pointers. Once we have something to boot, we can have a look at how
aboot and other bootloaders handle the situation (and steal their code of
course).

> > I haven't looked at this very closely, but when I attempted to generate a
> > raw binary of the bootloader code with the xcompiler/binutils it either
> > segfaulted or generated a 4 GB sparse file. There was a double free within
> > binutils which was fixed, and some minor version mismatches, but still, it
> > does not generate a working binary.

> Obviously, the bootloader will be a pain to debug.  I think that I have
> a working cross compiler running under hpux to produce ELF object files
> and binaries.  I had a problem with ld which went away when I rebuilt
> binutils with no optimization (-O0).

We need to get to the point where we can safely cross-compile for parisc machines
on i386. My experience with binutils / bfd is rather limited, so I wait for some-
one else to do it...


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From: Christoph Plattner <christoph.plattner@alcatel.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] parisc vs. parisc64
Date: Wed, 24 Jan 2001 09:38:09 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:9355

Hello !

I have to problem to decide between parisc and parisc64.
How can I find out, what I have to take on a
Series 700 or 800 machine.

With friendly regards
	
	Christoph

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From: Christoph Plattner <christoph.plattner@alcatel.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] One more step: Interruption (trap) 18 on 9000/720
Date: Wed, 24 Jan 2001 10:54:19 +0100
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To: John Marvin <jsm@udlkern.fc.hp.com>
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Thank you for the answer !

I will check that point and I hope my skills are high enough 
for all that.

Further, can you tell me, how to use and where I can find
the kernel debugger stuff. I am used to handle a modified
gdb debuging parts of chorus kernel (on intel machines) in
my job, so I think I should handle that. I saw (as far
this is right) that the kernel debug support is new in
2.4 kernel (partially 2.3) and I am interested in that, as
I often write device drivers (I also want use this for HP
and for intel).

The `strace' is not running with the new stuff. Will there 
be an update. (I tried the current CVS version, but I have
built probles. Many of them I tried to fix. But in process.c
there were problems in basic structures.

And now a very important question:
---------------------------------

You seem to be the right man asking this. I also have an
E55 server (9000/856) with those propriatary HP interfaces.
For me the SCSI controller and the 8-port serial multiplxer
(used for serial console on port-0) are the important
key points. Is there no possibility to get them running ??
Is there really no documentation, etc...

Can I use the PDC console as system console
(not to have "Switching from PDC console..."), so that
I can run Linux NFS based via the PDC console ?

I hope you can help.

With friendly regards

	Christoph




John Marvin wrote:
> 
> >
> > or whatever my first process is. I have instrumented the kernel code
> > and added the output of the code number (a good idea to have this
> > fix in the kernel !) and I saw:
> >
> >         code=18
> >
> > So I have the code 18 (decimal). In the PA RISC 1.1 manual (your link)
> > I saw following description:
> >
> >         18  Data memory protection trap / Unaligned data reference trap
> >
> > So what does this mean here. An alignment problem ?
> > Why is this code not handled in the switch/case ?
> >
> We have done very little testing on machines with PCXS processors. PCXS
> processors are the earliest cpu's that conformed to the PARISC 1.1
> architecture specification, and therefore are the earliest processors that
> we will probably ever support. Anything earlier was PARISC 1.0 based, and
> I doubt we will every support PARISC 1.0 based machines.
> 
> PCXS has a variety of unique differences from some of the later parisc
> cpu's, and you just ran into one of them. Trap type 18 was generated
> by PARISC 1.0 based cpu's primarily. PCXS is the only PARISC 1.1 cpu
> that generates this type of trap. Trap 18 was replaced by Trap 26,
> 27 & 28 in all later cpu's.  The reason is that a Trap 18 has three
> possible causes, and it was a lot better to have three different traps
> for those different causes. Those three causes are:
> 
>     Data Memory Access Rights Trap (Now trap type 26)
>     Data Memory Protection Id Trap (Now trap type 27)
>     Unaligned Data Reference Trap  (Now trap type 28)
> 
> So, the correct fix is going to require code that can test for each of
> these three possibilities, and then do the right thing (e.g. an
> unaligned fault can be checked for by using the iir to determine the
> access size, and then comparing that to the ior to see if the address
> is properly aligned).
> 
> However, there may be a quick workaround you can try.  Currently we don't
> enable protection id checking (we will eventually), so it should be
> impossible to get a Data Memory Protection Id Trap.  In most cases we
> should only get an Unaligned Data Reference Trap if there is a bug.
> However there is a known bug right now (a fix is in progress) in the
> pthreads support which might cause this trap to be generated on a PCXS
> processor.  The only trap that should happen in the normal execution of
> the kernel is a Data Memory Access Rights Trap, which will happen every
> time there is a copy-on-write fault.
> 
> So, the quick workaround might be to just add a "case 18" where you
> find "case 15" and "case 26" in handle_interruption. The problem with
> this workaround is that if you do get an Unaligned Data Reference
> fault you will just hang the kernel, because you will keep calling
> do_page_fault() for a problem that do_page_fault() can't fix.
> 
> > I always use (I think the 32bit code). Have I set to a parisc64 ?
> > How can I influence this ?
> > Which kind of CPU is this in the 720 model ? (I know a 50MHz PA RISC ..)
> >
> 
> PARISC 1.1 processors are incapable of running in 64 bit mode. As I
> mentioned above the processor in a 720 is a PCXS processor. PCXS is
> the internal name for a PA7000 processor.
> 
> John Marvin
> jsm@fc.hp.com

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Kernel Swapping yet?
Date: Wed, 24 Jan 2001 10:55:08 +0000
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To: "Phillip D. Beal" <pdbeal@louisville.edu>
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Xref: news.gmane.org gmane.linux.ports.parisc:9357

On Mon, Jan 22, 2001 at 10:49:12AM -0500, Phillip D. Beal wrote:
> Hey,
> 
> I've been playing around with the 715 I got to boot, and I've found an
> odd occurance.  If I open an existing file with vi, and hit escape the
> kernel crashes.  It doesn't matter if the file is locally or on a remote
> system it does it either way.  So, I remeber the instructions from the
> PA-Linux 0.1 CD saying the kernel isn't useing the swap space yet.  Is
> this still true? I know the problem is not vi because the kernel dies
> even if I use vi on the remote system.  The PARISC system dies when I go
> to hit ESC to exit insert mode of vi.

I don't recall ever seeing that problem on my 715/75.  What kernel and
userspace are you using?

Richard


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] parisc vs. parisc64
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On Wed, Jan 24, 2001 at 09:38:09AM +0100, Christoph Plattner wrote:
> Hello !
> 
> I have to problem to decide between parisc and parisc64.
> How can I find out, what I have to take on a
> Series 700 or 800 machine.

parisc64 is for the 64-bit processors _only_.  Note that most 64-bit
processors will also run a 32-bit kernel.  The only machines which need to
run a 64-bit kernel are those which have PAT PDC -- ie L class and A500.

-- 
Revolutions do not require corporate support.


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From: Marek GROSSMAN <grossman@nspuh.cz>
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Subject: [parisc-linux] Boot from tape
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Hello.

Can I boot Linux on the E55 server from a tape?
How can I make the tape.

Thanks
-- 
Mareg


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From: "Phillip D. Beal" <pdbeal@louisville.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel Swapping yet?
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On Wed, Jan 24, 2001 at 10:55:08AM +0000, Richard Hirst wrote:
> On Mon, Jan 22, 2001 at 10:49:12AM -0500, Phillip D. Beal wrote:
> > Hey,
> > 
> > I've been playing around with the 715 I got to boot, and I've found an
> > odd occurance.  If I open an existing file with vi, and hit escape the
> > kernel crashes.  It doesn't matter if the file is locally or on a remote
> > system it does it either way.  So, I remeber the instructions from the
> > PA-Linux 0.1 CD saying the kernel isn't useing the swap space yet.  Is
> > this still true? I know the problem is not vi because the kernel dies
> > even if I use vi on the remote system.  The PARISC system dies when I go
> > to hit ESC to exit insert mode of vi.
> 
> I don't recall ever seeing that problem on my 715/75.  What kernel and
> userspace are you using?

A build from the 20010109 CVS that I downloaded via CVS.  However, I'm
still using the filesystem from tha palinux-0.5 CD.  the problem only
happens when I use the physical console on the 715/80.  If I use the
Serial login, the kernel does not die.

-- 
Phillip Beal                           ___           _               _   
Electrical and Computer Engineering   | _ ) ___ __ _| |___  _ _  ___| |_ 
pdbeal@louisville.edu                 | _ \/ -_) _` | |_ /_| ' \/ -_)  _|
http://www.bealz.net/                 |___/\___\__,_|_/__(_)_||_\___|\__|


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From: Greg Ingram <ingram@symsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C100 and newest CVS bits
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I checked out the newest CVS bits and built a new kernel that dies on my
C100.  Serial console seems to be working better though.  It's dying in or
right after the SCSI setup.  The tail of the boot messages is below.  Both
of my disks were working with an earlier kernel.  Any suggestions?

- Greg

SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 86, options 0
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: Good, target data areas are dma coherent
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: SEAGATE   Model: ST11200N SUN1.05  Rev: 8358
  Type:   Direct-Access                      ANSI SCSI revision: 02
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
ncr53c720-0: restart (scsi reset).
scsi1 : ncr53c8xx - version 3.3b
  Vendor: SEAGATE   Model: ST32430W          Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 02
ncr53c720-0-<6,0>: tagged command queue depth set to 8
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
Detected scsi disk sdb at scsi1, channel 0, id 6, lun 0
 
ccio-dma.c:738: Assertion size > 0 failed!
Kernel panic: size > 0                                                          



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That patch I sent last week has a letter O instead of a zero in the 'C100'
string in the comment.  Only one.  What were my fingers doing?

--- ccio-dma.c.orig	Wed Jan 24 09:39:22 2001
+++ ccio-dma.c	Wed Jan 24 09:39:38 2001
@@ -1523,7 +1523,7 @@
 ** that can't be detected by PA/EISA/PCI bus walks.
 */
 	switch((unsigned long)d->hpa) {
-        case 0xf5fbf000L:       /* C1O0 (wild guess!) */
+        case 0xf5fbf000L:       /* C100 (wild guess!) */
 	case 0xf3fbf000L:       /* C110 IOA0 LBC (aka GSC port) */
 	case 0xf7fbf000L:       /* C110 IOA0 LBC (aka GSC port) */
 	case 0xf203f000L:       /* C180/C200/240/C360 IOA0 LBC (aka GSC port) */

- Greg



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Xref: news.gmane.org gmane.linux.ports.parisc:9363

How can you run Linux ?
I thought, HP E55 (9000/856) is not full supported, as
the SCSI driver and the serial multiplexer (8-port serial,
where my console is configured to port 0) is not supported
(no driver !).
Or is there any, and I don't know it ??

If there is no driver, which console do you use ?

Do you really speak about the PA-RISC version of the E55
(modell 9000/856) or the new intel-PC server ?

Please remail !

With friendly regards

	Christoph

PS: I would like to use my E55 server under Linux ....

Marek GROSSMAN wrote:
> 
> Hello.
> 
> Can I boot Linux on the E55 server from a tape?
> How can I make the tape.
> 
> Thanks
> --
> Mareg
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955


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Christoph Plattner wrote:
> Further, can you tell me, how to use and where I can find
> the kernel debugger stuff.

There is no kernel debugger (yet). I started working on one last year
based on "KWDB" from HPUX. I've added the kernel hooks (CONFIG_KWDB).
But I (a) didn't get it working and (b) didn't get permission to publish
the KWDB base. My advice is for someone to take the SGI KDB and make it
work for parisc-linux and changing CONFIG_KWDB to CONFIG_KDB.

...
> And now a very important question:
> ---------------------------------
> 
> You seem to be the right man asking this. I also have an
> E55 server (9000/856) with those propriatary HP interfaces.
> For me the SCSI controller and the 8-port serial multiplxer
> (used for serial console on port-0) are the important
> key points. Is there no possibility to get them running ??
> Is there really no documentation, etc...

This is explained in the FAQ or HWDB "introduction" someplace.
Someone *in* HP has to care enough to review the documentation
and get it past the lawyers. I don't. Search the parisc-linux
mail archive for "SPIFI" if you want more...

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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> > If the IPL could be extracted from an ELF binary, then it could be produced
> > on any system which supports cross compiling to HP/UX ELF format.
> 
> The problem (unless for the confused ones Christopher just showed the light)
> is the GNU binutils seem to be buggy at the moment.

The question is in what way.  I have been using gas for a long time
with gcc with no major problems.  Possibly, there are problems with ld.
The source at puffin is quite a bit out of date.  Maybe the hppa-linux
support should be integrated into 2.9.4.

> We need to get to the point where we can safely cross-compile for parisc machines
> on i386. My experience with binutils / bfd is rather limited, so I wait for some-
> one else to do it...

I think that I may have been able to successfully cross compile ipl to an
elf binary with text starting at offset 0.  Note that this requires that
libgcc.a has been built successfully for hppa-linux.  This requires a
few patches to gcc.  I think that I have comparable linker flags but I
am not quite sure.   I can make the binary available if someone wants to
try it.  Here are the diffs:

*** Makefile.hp	Thu Mar 11 16:52:20 1999
--- Makefile.gnu	Tue Jun  1 13:55:34 1999
***************
*** 13,22 ****
  #
  
  
! CC	= /usr/local/bin/gcc		# gcc
! LD	= /bin/ld                       # HP's linker
! LDFLAGS = -R 0 -N			#
! AS	= /usr/local/bin/as             # gas
  CFLAGS	= -fwritable-strings -mdisable-fpregs
  
  all:    ipl
--- 13,24 ----
  #
  
  
! CC	= hppa-linux-gcc		# gcc
! LD	= hppa-linux-ld                 #
! # LDFLAGS = -Wl,-Ttext -Wl,0 -Wl,-N -nostartfiles -nostdlib -v
! LDFLAGS = -Ttext 0 -N
! LDLIBS  = -L/ehic/a/lib/gcc-lib/hppa-linux/egcs-2.91.60 -lgcc
! AS	= hppa-linux-as                 # gas
  CFLAGS	= -fwritable-strings -mdisable-fpregs
  
  all:    ipl
***************
*** 41,47 ****
  
  #
  ipl: ipl_s.o ipl_c.o rom_interface.o
! 	$(LD) $(LDFLAGS) ipl_s.o ipl_c.o rom_interface.o -o ipl
  
  
  #
--- 43,49 ----
  
  #
  ipl: ipl_s.o ipl_c.o rom_interface.o
! 	$(LD) $(LDFLAGS) ipl_s.o ipl_c.o rom_interface.o $(LDLIBS) -o ipl
  
  
  #

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Wed, Jan 24, 2001 at 05:29:38PM +0100, Christoph Plattner wrote:
> How can you run Linux ?
> I thought, HP E55 (9000/856) is not full supported, as
> the SCSI driver and the serial multiplexer (8-port serial,
> where my console is configured to port 0) is not supported
> (no driver !).
> Or is there any, and I don't know it ??

If someone wants to put some effort into it... (hint: i don't)

the PDC spec (available from www.parisc-linux.org/documentation.html)
includes calls to perform block io.  there's no practical reason
someone couldn't write drivers/block/pdc.c which performed IO through
this mechanism.  performance would suck, but at least it would work.

-- 
Revolutions do not require corporate support.


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Greg Ingram wrote:
> ccio-dma.c:738: Assertion size > 0 failed!
> Kernel panic: size > 0                                                       

Bogus ASSERT. Ryan committed the fixes last night. Please try again.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Wed, Jan 24, 2001 at 08:50:12AM -0800, Grant Grundler wrote:
> There is no kernel debugger (yet). I started working on one last year
> based on "KWDB" from HPUX. I've added the kernel hooks (CONFIG_KWDB).
> But I (a) didn't get it working and (b) didn't get permission to publish
> the KWDB base. My advice is for someone to take the SGI KDB and make it
> work for parisc-linux and changing CONFIG_KWDB to CONFIG_KDB.

FYI, after my PA-RISC talk at linux.conf.au, Keith Owens expressed
interest in porting KDB to Linux/PARISC.  He's on holiday just now but
he'll investigate further after he gets back.

Grant, do you think it'd be worth removing the KWDB bits?

-- 
Revolutions do not require corporate support.


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On Wed, 24 Jan 2001, Grant Grundler wrote:

> Greg Ingram wrote:
> > ccio-dma.c:738: Assertion size > 0 failed!
> > Kernel panic: size > 0                                                       
> 
> Bogus ASSERT. Ryan committed the fixes last night. Please try again.

I pulled ccio-dma.c again and it still has the ASSERT at line 738.  If I
remove it, the kernel dies at line 385:
	
	ASSERT(pages_needed);

If I remove it, death occurs are line 460:

	ASERT(pages_mapped);

I've appended messages again.  Is the message from sim700 important?  Or
is it just telling me that I don't have that hardware?  The very last line
is different too.

- Greg

SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 86, options 0
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: Good, target data areas are dma coherent
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: SEAGATE   Model: ST11200N SUN1.05  Rev: 8358
  Type:   Direct-Access                      ANSI SCSI revision: 02
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
ncr53c720-0: restart (scsi reset).
scsi1 : ncr53c8xx - version 3.3b
  Vendor: SEAGATE   Model: ST32430W          Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 02
ncr53c720-0-<6,0>: tagged command queue depth set to 8
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
Detected scsi disk sdb at scsi1, channel 0, id 6, lun 0
 
ccio-dma.c:460: Assertion pages_mapped failed!
Kernel panic: pages_mapped
In interrupt handler - not syncing
   


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Subject: [parisc-linux] KWDB vs KDB
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Matthew Wilcox wrote:
> On Wed, Jan 24, 2001 at 08:50:12AM -0800, Grant Grundler wrote:
> FYI, after my PA-RISC talk at linux.conf.au, Keith Owens expressed
> interest in porting KDB to Linux/PARISC.  He's on holiday just now but
> he'll investigate further after he gets back.
> 
> Grant, do you think it'd be worth removing the KWDB bits?

Should KDB not need something with CONFIG_KWDB around it, Keith
is certainly welcome to remove the CONFIG_KWDB usage/code.
I'm pretty sure the same hooks will be needed for KDB.
Just rename CONFIG_KWDB to CONFIG_KDB.

later,
grant


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Greg Ingram wrote:
> I pulled ccio-dma.c again and it still has the ASSERT at line 738.

My bad. My brain thought that was a different ASSERT.

sorry,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Wed, 24 Jan 2001, Grant Grundler wrote:

> Greg Ingram wrote:
> > I pulled ccio-dma.c again and it still has the ASSERT at line 738.
> 
> My bad. My brain thought that was a different ASSERT.

Ok.  Is this a SCSI problem or a ccio-dma problem?  Like I mentioned
earlier, both disks worked with the kernel sources I downloaded last
week.  I've got all of SCSI disabled and the current kernel is running
fine.  

- Greg


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Xref: news.gmane.org gmane.linux.ports.parisc:9373

On Wed, Jan 24, 2001 at 12:06:23PM -0600, Greg Ingram wrote:
> I've appended messages again.  Is the message from sim700 important?  Or
> is it just telling me that I don't have that hardware?  The very last line
> is different too.
> 
> - Greg
> 
> SCSI subsystem driver Revision: 1.00
> sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 86, options 0
> scsi0: Revision 0x2
> Post test1, istat 01, sstat0 00, dstat 84
> sim700: WARNING IRQ probe failed, (returned 0)
> scsi0: Good, target data areas are dma coherent
> scsi0: test 1 completed ok.
> scsi0 : LASI/Simple 53c7xx
>   Vendor: SEAGATE   Model: ST11200N SUN1.05  Rev: 8358
>   Type:   Direct-Access                      ANSI SCSI revision: 02

That lot was from sim700, and is ok.

We are now entering the zalon (ncr53c8xx.c/zalon.c) driver.

> zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
> ncr53c8xx: 53c720 detected
> ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
> ncr53c720-0: restart (scsi reset).
> scsi1 : ncr53c8xx - version 3.3b
>   Vendor: SEAGATE   Model: ST32430W          Rev: HP05
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> ncr53c720-0-<6,0>: tagged command queue depth set to 8

Now we are probing the sim700 scsi bus

> Detected scsi disk sda at scsi0, channel 0, id 0, lun 0

Now we are probing the FWD (zalon) scsi bus 

> Detected scsi disk sdb at scsi1, channel 0, id 6, lun 0

Now the system will try to access these disks looking for partition
tables.

> ccio-dma.c:460: Assertion pages_mapped failed!

Your original message (assert size > 0) implies that one of the scsi
drivers has passed down a request to map a zero length buffer.  That
is quite possible - a Test Unit Ready will likely have a zero length
buffer as there is no data phase, and a driver might just try and map
it anyway.  I'll have a look at the drivers shortly.  I cant explain
why it used to work though, unless previous versions of ccio-dma.c
handled zero length requests differently.

Richard


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On Wed, Jan 24, 2001 at 10:35:52AM -0500, Phillip D. Beal wrote:
> On Wed, Jan 24, 2001 at 10:55:08AM +0000, Richard Hirst wrote:
> > On Mon, Jan 22, 2001 at 10:49:12AM -0500, Phillip D. Beal wrote:
> > > Hey,
> > > 
> > > I've been playing around with the 715 I got to boot, and I've found an
> > > odd occurance.  If I open an existing file with vi, and hit escape the
> > > kernel crashes.  It doesn't matter if the file is locally or on a remote
> > > system it does it either way.  So, I remeber the instructions from the
> > > PA-Linux 0.1 CD saying the kernel isn't useing the swap space yet.  Is
> > > this still true? I know the problem is not vi because the kernel dies
> > > even if I use vi on the remote system.  The PARISC system dies when I go
> > > to hit ESC to exit insert mode of vi.
> > 
> > I don't recall ever seeing that problem on my 715/75.  What kernel and
> > userspace are you using?
> 
> A build from the 20010109 CVS that I downloaded via CVS.  However, I'm
> still using the filesystem from tha palinux-0.5 CD.  the problem only
> happens when I use the physical console on the 715/80.  If I use the
> Serial login, the kernel does not die.

Ah, ok.  I only have serial consoles here, so I can't try and reproduce
that.  Hope someone else responds...

Richard


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Subject: [parisc-linux] Almost there...(for you guys running MPICH)
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Alright...
Got nearly everything working *smile*...
Current installation:
Cdrom .5 image on hard drive
base.tgz extracted
ftp.deb installed
nfsroot from October 9, 2000
glibc from October 5, 2000
(library paths now correct)

After a 45 minute seemingly successful configure, and an unknown lengthed
make, I see a few errors at the end, numbered 1 and 2.
I was curious as to if anyone else was having a similar problem.

Thank you,
 - Josiah



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Xref: news.gmane.org gmane.linux.ports.parisc:9376

> I think that I may have been able to successfully cross compile ipl to an
> elf binary with text starting at offset 0.  Note that this requires that

offset 0 sounds bad as we may not corrupt page 0 (the PDC puts some data we
need there).


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] C100 and newest CVS bits
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Richard Hirst wrote:

> I cant explain
> why it used to work though, unless previous versions of ccio-dma.c
> handled zero length requests differently.

cvs log of ccio-dma.c explains:
revision 1.21
date: 2001/01/16 03:19:50;  author: rbrad;  state: Exp;  lines: +857 -457
...
- Added support so the ASSERTS actually work.



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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: Re: [parisc-linux] One more step: Interruption (trap) 18 on 9000/720
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Hello, again.

What does this `SPIFI' mean?
Is this a name of a person, or a technical expression, ... ?

I read something at the E55 of "undocumented drivers" and so
on, but I hoped somebody has a solution, and I myself am interested
in helping writing drivers for that E55, as I really want to use
it inclusive all 8 serial ports and SCSI !

With friendly regards
	Christoph




Grant Grundler wrote:
> 
> Christoph Plattner wrote:
> > Further, can you tell me, how to use and where I can find
> > the kernel debugger stuff.
> 
> There is no kernel debugger (yet). I started working on one last year
> based on "KWDB" from HPUX. I've added the kernel hooks (CONFIG_KWDB).
> But I (a) didn't get it working and (b) didn't get permission to publish
> the KWDB base. My advice is for someone to take the SGI KDB and make it
> work for parisc-linux and changing CONFIG_KWDB to CONFIG_KDB.
> 
> ...
> > And now a very important question:
> > ---------------------------------
> >
> > You seem to be the right man asking this. I also have an
> > E55 server (9000/856) with those propriatary HP interfaces.
> > For me the SCSI controller and the 8-port serial multiplxer
> > (used for serial console on port-0) are the important
> > key points. Is there no possibility to get them running ??
> > Is there really no documentation, etc...
> 
> This is explained in the FAQ or HWDB "introduction" someplace.
> Someone *in* HP has to care enough to review the documentation
> and get it past the lawyers. I don't. Search the parisc-linux
> mail archive for "SPIFI" if you want more...
> 
> grant
> 
> Grant Grundler
> Unix Systems Enablement Lab
> +1.408.447.7253
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at


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From: "Paul J.Y. Lahaie" <pjlahaie@linuxcare.com>
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Subject: [parisc-linux] Weird compile problems
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Hello everyone,

I'm in the process of trying to get a working apt (still) and I'm getting
the following with the latest kernel (updated this morning) and the
toolchain from nfsroot-20010118.  The system is a C360 with 256MB of RAM.

Compiling deb/debindexfile.cc to /home/pjlahaie/src/apt/build/obj/apt-pkg/d=
ebindexfile.opic
deb/debindexfile.cc: In member function `string debSourcesIndex::SourceInfo=
=20
   (const pkgSrcRecords::Parser &, const pkgSrcRecords::File &) const':
deb/debindexfile.cc:62: Basic block 57 pred edge is corrupted
Predecessor:  14
Successor:  1075043236
deb/debindexfile.cc:62: Basic block 57 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 55 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 53 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 47 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 44 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 41 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 39 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 31 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 28 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 26 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 21 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 19 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 14 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 10 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 7 edge lists are corrupted
deb/debindexfile.cc:62: Basic block 1 edge lists are corrupted
deb/debindexfile.cc:62: Internal compiler error in , at flow.c:6834
   Please submit a full bug report.
   See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.


Now if I do another make, it will compile fine.  The file is compiled with
the following options:  -g -O -fno-rtti

Is this a kernel problem or a compiler problem?  I can move the build
environment over to an A180 instead.

						- Paul


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] linux-2.4.0
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i've merged linus' 2.4.0 release into our tree.  it compiles, with fewer
warnings than before.  but some things have been changed in the vm system
i'm not 100% confident with.  so, since i'm not in a position to boot
the 712 right now (lack of networking), i'm checking it in as a branch
called LINUS_240_FIXUP.

the checkin's going a bit slowly, so don't try it just yet, but it should
be done shortly.  those of you on the cvs list will see when it's done.

-- 
Revolutions do not require corporate support.


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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] typo fix
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Greg,

I can apply this patch if it really bothers you :)

Otherwise I am hoping to have the hack removed out of the ccio driver
with in a week.  I have already taken it out of my local tree, and just need
to finish up one small part of the I/O tree before committing it.

- Ryan

Greg Ingram wrote:

> That patch I sent last week has a letter O instead of a zero in the 'C100'
> string in the comment.  Only one.  What were my fingers doing?
>
> --- ccio-dma.c.orig     Wed Jan 24 09:39:22 2001
> +++ ccio-dma.c  Wed Jan 24 09:39:38 2001
> @@ -1523,7 +1523,7 @@
>  ** that can't be detected by PA/EISA/PCI bus walks.
>  */
>         switch((unsigned long)d->hpa) {
> -        case 0xf5fbf000L:       /* C1O0 (wild guess!) */
> +        case 0xf5fbf000L:       /* C100 (wild guess!) */
>         case 0xf3fbf000L:       /* C110 IOA0 LBC (aka GSC port) */
>         case 0xf7fbf000L:       /* C110 IOA0 LBC (aka GSC port) */
>         case 0xf203f000L:       /* C180/C200/240/C360 IOA0 LBC (aka GSC port) */
>
> - Greg
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.4.0 merge mangle our tree?
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Hi Matthew,

I did 'cvs co -D "1/24/2001 09:00 MST" linux' in order to pick
up the bits before the 2.4.0 "First take" commit.

	make distclean
	make oldconfig
	edit .config to set CONFIG_SMP=y
	make oldconfig
	make -j4 dep
	make -j4 palo  (dies with error)

"make palo" dies with:

hppa-linux-gcc -D__KERNEL__ -I/linux/smp64/linux/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mschedule=7200 -mdisable-fpregs -fno-strict-aliasing -ffunction-sections    -c -o tcp_minisocks.o tcp_minisocks.c
tcp_minisocks.c: In function `tcp_timewait_state_process':
tcp_minisocks.c:137: too many arguments to function `tcp_parse_options'
tcp_minisocks.c: In function `tcp_check_req':
tcp_minisocks.c:812: too many arguments to function `tcp_parse_options'
make[3]: *** [tcp_minisocks.o] Error 1
make[3]: Leaving directory `/linux/smp64/linux/net/ipv4'
...


grundler <725>fgrep tcp_minisocks net/ipv4/CVS/Entries 
/tcp_minisocks.c/1.1.1.2/Tue Jan  9 16:56:41 2001/-ko/D2001.01.24.07.00.00

And from the cvs log output:
head: 1.2
...
symbolic names:
	LINUS_240_FIXUP: 1.1.0.2
	LINUS_240_PREMERGE: 1.1
	LINUS_240: 1.1.1.2
	LINUX_240_PREIMPORT: 1.1
...
----------------------------
revision 1.2
date: 2001/01/25 00:03:54;  author: willy;  state: Exp;  lines: +3 -3

Linus 2.4.0 merge (take one)
----------------------------
...


Why am I picking up the LINUS_240 version of this file?
Is "-D" the wrong method to use?

Tried "cvs update -rLINUS_240_PREMERGE" and that seemed to do what
I think I wanted. But backs out a few recent changes. *sigh*.

thanks,
grant


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Subject: Re: [parisc-linux] 2.4.0 merge mangle our tree?
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On Wed, 24 Jan 2001, Grant Grundler wrote:

> I did 'cvs co -D "1/24/2001 09:00 MST" linux' in order to pick
> up the bits before the 2.4.0 "First take" commit.
>
> [...]
> And from the cvs log output:
> head: 1.2
>
> ...
> symbolic names:
> 	LINUS_240_FIXUP: 1.1.0.2
> 	LINUS_240_PREMERGE: 1.1
> 	LINUS_240: 1.1.1.2
> 	LINUX_240_PREIMPORT: 1.1
> [...]
> 
> Why am I picking up the LINUS_240 version of this file?
> Is "-D" the wrong method to use?

These are all the symbolic names for revisions of this file - your
working version might be any of these or none.  "cvs stat" will tell you
what version you currently have.

Using the date should work if you get it just right, but there should have
been a tag laid down before the merge started for just this purpose.

> Tried "cvs update -rLINUS_240_PREMERGE" and that seemed to do what
> I think I wanted. But backs out a few recent changes. *sigh*.

That seems closer to what you want, but backs out any changes made since
the merge started.  Not sure what the difference between *_PREMERGE and
*_PREIMPORT is - you'd have to ask willy, I guess.

	- Mike.


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> I'm in the process of trying to get a working apt (still) and I'm getting
> the following with the latest kernel (updated this morning) and the
> toolchain from nfsroot-20010118.  The system is a C360 with 256MB of RAM.

FWIW I didn't run into this problem when I tried to compile apt using
the same nfsroot and a kernel that is a few days old (Jan20). I get
almost all the way through the end of the build. one of the files take a
lot of memory to build and fails on my gecko, but i've gotten it to work
before so i'm pretty sure it'll work if i increase my swap. i'll try to
give this a try this weekend.

randolph
--=20
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On Wed, Jan 24, 2001 at 07:14:57PM +0000, Richard Hirst wrote:
> Your original message (assert size > 0) implies that one of the scsi
> drivers has passed down a request to map a zero length buffer.  That

That was indeed the case.  Something asks sim700.c to do a bidirectional
trasfer of length 0.  Fixed sim700.c to not pci_map_single() on such
requests.  Should be ok now.

Richard


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Main branch is certainly broken.  e.g. drivers/pci/Makefile makes
drivers/pci/pci.a but Makefile tries to link drivers/pci/drivers.o
I fixed that in my tree but then got masses of unresolved
references on the final link.

Richard


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> > I think that I may have been able to successfully cross compile ipl to an
> > elf binary with text starting at offset 0.  Note that this requires that
> 
> offset 0 sounds bad as we may not corrupt page 0 (the PDC puts some data we
> need there).

This is easily changed but seems consistent with the "-R 0" option to
the hp linker used in Jason Eckhardt's Makefile.  It would appear that
mkipl builds the actual image.  On the otherhand, no care was taken
to compile using pic so there may be a relocation problem.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Thu, Jan 25, 2001 at 10:19:18AM +0000, Richard Hirst wrote:
> Main branch is certainly broken.  e.g. drivers/pci/Makefile makes
> drivers/pci/pci.a but Makefile tries to link drivers/pci/drivers.o
> I fixed that in my tree but then got masses of unresolved
> references on the final link.

For the main branch, Makefile appears to be from 2.4.0, but
drivers/pci/Makefile isn't.  I dropped in a new drivers/pci/Makefile
and the next problem is that it isn't building anything in arch/parisc/lib.
Make.Rules change, maybe.

Giving up for now,
  Richard


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On Wed, Jan 24, 2001 at 11:19:57PM -0500, Michael Ang wrote:
> That seems closer to what you want, but backs out any changes made since
> the merge started.  Not sure what the difference between *_PREMERGE and
> *_PREIMPORT is - you'd have to ask willy, I guess.

_PREIMPORT was a tag laid down by paul.  _PREMERGE was the tag I laid
down before starting the merge.

i'm not sure why i fucked up the branching so badly.  I did:

cvs tag -b LINUS_240_FIXUP
cvs ci
cvs add (several times, adding new directories and new files)
cvs ci
cvs -n up
cvs rm
cvs ci

(taken from my bash history, so i know this is exactly what i did)

the manpage says:

              To create a branch revision, one
              typically use the -b option of the rtag or tag com
              mands.  Then, either checkout or update can be used
              to base your sources on the newly  created  branch.
              From  that point on, all commit changes made within
              these working sources will be  automatically  added
              to  a branch revision, thereby not perturbing main-
              line development in any way. 

so what did i do wrong?

the other question is how best to fix the mess... if you check out
LINUS_240_FIXUP do you get a non-broken kernel?  does it work?  if so,
let's just put it all back on the HEAD.  if not, we have to try figuring
out something else.

-- 
Revolutions do not require corporate support.


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we have the following entry in hardware.c:

        { 0x05c0, 0x0fc0, pcxw   },  /* 0x05c0 - 0x05ff */

however, 5d5 is a pcxw+ (pa8600).  I don't know enough to change this
because i don't have a list of which ids are assigned.  I know this
information is available within linuxcare because i remember going over
this with dave kennedy at one point.  i don't have that information any
more though, so i can't fix this myself.

-- 
Revolutions do not require corporate support.


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From: Michael Ang <mang@subcarrier.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.0 merge mangle our tree?
Date: Thu, 25 Jan 2001 09:56:47 -0500 (EST)
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On Thu, 25 Jan 2001, Matthew Wilcox wrote:
> 
> i'm not sure why i fucked up the branching so badly.  I did:
> 
> cvs tag -b LINUS_240_FIXUP
[What did you do here?  Copy files from a tarball?]
> cvs ci
> cvs add (several times, adding new directories and new files)
> cvs ci
> cvs -n up
> cvs rm
[What kind of files were you removing?]
> cvs ci
> 
> (taken from my bash history, so i know this is exactly what i did)
>

Note my emphasis of your words: 
> the manpage says:
> 
>               To create a branch revision, one
>               typically use the -b option of the rtag or tag com
>               mands.  **Then, either checkout or update can be used
>               to base your sources on the newly  created  branch.**
>               From  that point on, all commit changes made within
>               these working sources will be  automatically  added
>               to  a branch revision, thereby not perturbing main-
>               line development in any way. 
> 
> so what did i do wrong?

You didn't check out or update with the branch tag, so all your changes
hit the trunk.  I'm not convinced you want to use a branch for merging (I
prefer doing it on the trunk - it hurts alot but it's over fast) but I
haven't been following the discussions very closely.

> the other question is how best to fix the mess... if you check out
> LINUS_240_FIXUP do you get a non-broken kernel?  does it work?  if so,
> let's just put it all back on the HEAD.  if not, we have to try figuring
> out something else.

The thing to really avoid is losing local changes.  If you want to do the
merge on a branch, the best bet is to revert the inadvertent changes to
the trunk and start over.

	- Mike.


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] 2.4.0 merge mangle our tree?
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On Thu, Jan 25, 2001 at 09:56:47AM -0500, Michael Ang wrote:
> On Thu, 25 Jan 2001, Matthew Wilcox wrote:
> > 
> > i'm not sure why i fucked up the branching so badly.  I did:
> > 
> > cvs tag -b LINUS_240_FIXUP
> [What did you do here?  Copy files from a tarball?]

umm.. i did this after i'd merged the 2.4.0 files into my tree.  i didn't
think about doing it on a branch until then.  Should have thought about
it in advance, I guess?

> > cvs ci
> > cvs add (several times, adding new directories and new files)
> > cvs ci
> > cvs -n up
> > cvs rm
> [What kind of files were you removing?]

the ones which `cvs -n up' told me it would have added -- ie the ones
which were deleted by patch.

> You didn't check out or update with the branch tag, so all your changes
> hit the trunk.  I'm not convinced you want to use a branch for merging (I
> prefer doing it on the trunk - it hurts alot but it's over fast) but I
> haven't been following the discussions very closely.

Ugh.  Blah.  The reason I attempted to do it on a branch is that I could
only test it compiled not that it booted (for reasons too complex to
go into here, involving not being able to locate a 110V to 8V AC in
ottawa yet).  Perhaps I should have just not bothered.

> The thing to really avoid is losing local changes.  If you want to do the
> merge on a branch, the best bet is to revert the inadvertent changes to
> the trunk and start over.

Well, I have a directory here which contains what I want to appear in
CVS on the branch.  I'm not getting rid of it!  Would you mind reverting
this mess I've created to before the checkins I did yesterday, and I'll
try again?

-- 
Revolutions do not require corporate support.


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From: dkennedy <dkennedy@linuxcare.com>
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Subject: Re: [parisc-linux] CPU detection wrong
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On Thu, 25 Jan 2001, Matthew Wilcox wrote:

> 
> we have the following entry in hardware.c:
> 
>         { 0x05c0, 0x0fc0, pcxw   },  /* 0x05c0 - 0x05ff */
> 
> however, 5d5 is a pcxw+ (pa8600).  I don't know enough to change this
> because i don't have a list of which ids are assigned.  I know this
> information is available within linuxcare because i remember going over
> this with dave kennedy at one point.  i don't have that information any
> more though, so i can't fix this myself.

I will modify hardware.c and the hardware database to accomodate this 
change.  I will be doing that next week sometime.

Thank you.

If anyone else has any other changes to the CPU detection code please let me
know.

-- 
David Kennedy, Technical Account Manager, Linuxcare, Inc.
613.562.9594 tel, 613.562.9304 fax
dkennedy@linuxcare.com, http://www.linuxcare.com/
Linuxcare.  Support for the revolution.



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From: Alex deVries <alex@linuxcare.com>
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Subject: Re: [parisc-linux] CPU detection wrong
Date: Thu, 25 Jan 2001 11:34:00 -0500
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Matthew Wilcox wrote:
> we have the following entry in hardware.c:
>         { 0x05c0, 0x0fc0, pcxw   },  /* 0x05c0 - 0x05ff */
> however, 5d5 is a pcxw+ (pa8600).  

I remember when we were writing this that it was very difficult to
figure some of these things out, because of missing or conflicting
information.  I don't actually think that there's any information in
here that isn't available publically, like ver_nums.pdf.

I know I've never seen a concise and complete list of CPUs and IDs.

I seem to recall some of the lists not covering some of the newer
CPUs...

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.


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Subject: [parisc-linux] C100 improvements, problems
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Howdy ya'll,

Failing to read all the new messages first, I did a cvs update and wound
up with unbuildable source.  So I kept the sim700 bits and unrolled the
20010124 tarball.  Now I've got my disks back.  Thanks.

Current problems:

o  I still get the 'Warning: unable to open an initial console.' message.  
Serial is working better and I get kernel messages on the serial console.  
init is running a getty on /dev/ttyS0 but I never get a login prompt.  
I've tried with and without 'console=/dev/ttyS0' as a kernel commandline
parameter.

o  I still have trouble with unligned data references.  I've discovered
that in addition to tar and make, sleep and nscd also produce this error.

o  I see a curious message when I reboot:

	Trying to free nonexistent resource <ffd07000-ffd0700b>

o  more page faults when I use SCSI but not when root is mounted via NFS.  
Hmm... why could that be?  I thought maybe it had to do with swapping, but
if I use nfsroot and then:

	# swapon /dev/sda2

more works fine.  I can mount the ext2 partition and run more from there.  
But when the SCSI disk is root, more page faults. Here's some kernel
messages:
 
	do_page_fault() pid=285 command='more' type=15 address=0xbaffffff
	vm_start = 0x4018c000, vm_end = 0x40190000
 
	     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
	PSW: 00000000000001001111111100001011
	r0-3     00000000 00008978 00003b4b 000074c0
	r4-7     bb000000 00008978 0000a978 00007000
	r8-11    00008afa 0008b810 0000a978 bb0001a0
	r12-15   00000000 00000000 000892b0 00000000
	r16-19   00000000 00000001 0000b71b 0000006d
	r20-23   0000002f bb000000 bb000004 bb000008
	r24-27   80808080 000074c0 bb000000 00008978
	r28-31   00000004 40069d2c bb000540 4009352f
	sr0-3    00000000 000001a9 00000000 000001a9
	sr4-7    000001a9 000001a9 000001a9 000001a9
 
	IASQ: 000001a9 000001a9 IAOQ: 00003b57 00003b5b
	 IIR: 0ebf3033    ISR: 000001a9  IOR: baffffff
	ORIG_R28: 00000001   

But things are definately looking up.  :)

- Greg


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] 2.4.0 merge mangle our tree?
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On Wed, Jan 24, 2001 at 07:46:40PM -0800, Grant Grundler wrote:
> Hi Matthew,
> 
> I did 'cvs co -D "1/24/2001 09:00 MST" linux' in order to pick
> up the bits before the 2.4.0 "First take" commit.

ok, the answer seems to be `don't do that then'.  i get a buildable tree
by doing `cvs co linux; cd linux; cvs up -rLINUS_240_PREMERGE'.  I also
get a buildable tree by doing `cvs up -r LINUS_240_FIXUP'.  One is before
the merge and one is after.

sorry for stuffing up the merge :-(  ironic that i was trying to avoid
inconveniencing people...

> Tried "cvs update -rLINUS_240_PREMERGE" and that seemed to do what
> I think I wanted. But backs out a few recent changes. *sigh*.

err... which changes are those?  The sys32_select change richard made
just before i started breaking the tree looks like it's there. I guess
the change to sim700 that richard made won't be there, but as long as we
get this mess sorted out soon, it isn't going to be a big deal to find it.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] C100 improvements, problems
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On Thu, Jan 25, 2001 at 11:33:07AM -0600, Greg Ingram wrote:
> But when the SCSI disk is root, more page faults. Here's some kernel
> messages:
>  
> 	do_page_fault() pid=285 command='more' type=15 address=0xbaffffff

Known bug in `more'.  the stack starts at 0xbb000000 and more is trying
to look at the byte below the stack poinbter.  this has been fixed
upstream, now.

-- 
Revolutions do not require corporate support.


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From: Jason Eckhardt <jason@equator.com>
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Subject: Re: Building the Bootloader
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> > > I think that I may have been able to successfully cross compile ipl to an
> > > elf binary with text starting at offset 0.  Note that this requires that
> > 
> > offset 0 sounds bad as we may not corrupt page 0 (the PDC puts some data we
> > need there).
>
> This is easily changed but seems consistent with the "-R 0" option to
> the hp linker used in Jason Eckhardt's Makefile.  It would appear that
> mkipl builds the actual image.  On the otherhand, no care was taken
> to compile using pic so there may be a relocation problem.
>

  Care was taken -- the ipl is position independent with the chosen 
  combination of flags and code design. The ipl makes no assumption about the
  location it will be loaded into by the ROM (see ipl_s.s). Text offset zero 
  is correct for linking in the scheme I have chosen. The bootloader determines
  where is was loaded at runtime and sets the dp and sp accordingly. All of
  this should be obvious from the code.

  The specific combination of flags allowed me to get something resembling
  a straight binary image (by ignoring the header) and position independence.
  For some reason I can't remember now, -fpic didn't get the job done
  (perhaps a compiler defect).

  In any case, I expect later that we will just link the ipl as a standard
  ELF and then extract the "actual" binary image from it (as chris mentioned
  earlier, and as mentioned in the HILO README). The point was to get a 
  simple bootloader going, which I did (there were no cross tools at that
  time, I therefore just used gcc on HPUX). Any number of tweaks can easily be
  made as needed.

  jason.


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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C100 improvements, problems
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On Thu, Jan 25, 2001 at 11:33:07AM -0600, Greg Ingram wrote:
> o  I still have trouble with unligned data references.  I've discovered
> that in addition to tar and make, sleep and nscd also produce this error.

Sounds like the libpthreads problem, for which a new glibc is being
built.

> more works fine.  I can mount the ext2 partition and run more from there.  
> But when the SCSI disk is root, more page faults. Here's some kernel
> messages:

There is a bug in more (really!), now fixed, but needs a rebuild.  If you
invoke it as /bin/more you'll be ok.

Richard


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From: Grant Grundler <grundler@cup.hp.com>
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Richard Hirst wrote:
> Main branch is certainly broken.  e.g. drivers/pci/Makefile makes
> drivers/pci/pci.a but Makefile tries to link drivers/pci/drivers.o
> I fixed that in my tree but then got masses of unresolved
> references on the final link.

The whole PCI stuff needs to be merged. I was supposed to do that
once willy had a branch ready...I guess I should be doing that RSN
on the trunk. :^(

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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Matthew Wilcox wrote:
> 
> we have the following entry in hardware.c:
> 
>         { 0x05c0, 0x0fc0, pcxw   },  /* 0x05c0 - 0x05ff */
> 
> however, 5d5 is a pcxw+ (pa8600).  I don't know enough to change this
> because i don't have a list of which ids are assigned.

Linuxcare doesn't have this info either (afaik). I'm helping to sort
this out. Should have an answer by the end of today.

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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From: "Sean Anaya" <sanaya@gr.hp.com>
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Subject: [parisc-linux] Request
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Hi all,

I was wondering if it would be possible to get the latest workable CD image
(palinux-0.5.iso.gz) updated? I really would like to install Linux on my
C180-XP machine, but that image doesn't support Cxxx machines according to
the readme, and I do not have access to another linux machine on which to
build/put together a bootable CD image.

Thanks,

Sean Anaya


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Matthew Wilcox wrote:
> we have the following entry in hardware.c:
> 
>         { 0x05c0, 0x0fc0, pcxw   },  /* 0x05c0 - 0x05ff */

David (Kennedy),
You have time to fix the table based on the "Appendix B" data below?

(Willy is keeping me busy - help him test the merge mess. :^)

In the long run, I don't want to be involved in maintaining this table.
An easier way to determine processor type is based on CPU and FP-Coproc
MODEL information. Our kernel queries for both now and it's just a
matter of putting it to use.

On a related note: is anyone interested in figuring out how to get
the "model string" from NVRAM?
It should just be a PDC call but I don't know which one.

Taken from the I/O ACD, Appendix B. Version and Identification Numbers,
here's an ASCII update for the NPROC types in 5c0-5ff range:

                                         |        |   SVERSION    | HVERSION
Module                                   | TYPE   |  Model    Opt |  Model
_________________________________________|________|_______________|_________
   M2250                                 | NPROC  |  00004    91  |   5C0
   M2500                                 | NPROC  |  00004    91  |   5C1
   Sonata 440                            | NPROC  |  00004    91  |   5C2
   Sonata 360                            | NPROC  |  00004    91  |   5C3
   Rhapsody 440                          | NPROC  |  00004    91  |   5C4
   Rhapsody 360                          | NPROC  |  00004    91  |   5C5
   Raven W 360 (9000/780/????)           | NPROC  |  00004    91  |   5C6
   Halfdome W+ 552                       | NPROC  |  00004    91  |   5C7
   Lego 360 processor                    | NPROC  |  00004    81  |   5C8
   Rhapsody DC- 440                      | NPROC  |  00004    91  |   5C9
   Rhapsody DC- 360                      | NPROC  |  00004    91  |   5CA
   Crescendo 440                         | NPROC  |  00004    91  |   5CB
   Prelude W 440                         | NPROC  |  00004    91  |   5CC
   SPP2600                               | NPROC  |  00004    91  |   5CD
   M2600                                 | NPROC  |  00004    91  |   5CE
   Allegro W+                            | NPROC  |  00004    81  |   5CF
   Kazoo W+                              | NPROC  |  00004    81  |   5D0
   Forte W+ 2w                           | NPROC  |  00004    91  |   5D1
   Forte W+ 4w                           | NPROC  |  00004    91  |   5D2
   Prelude W+ 540                        | NPROC  |  00004    91  |   5D3
   Duet W+                               | NPROC  |  00004    91  |   5D4
   Crescendo 550                         | NPROC  |  00004    91  |   5D5
   Crescendo DC- 440                     | NPROC  |  00004    81  |   5D6
   Keystone W+                           | NPROC  |  00004    91  |   5D7
   Rhapsody wave 2 W+ DC-                | NPROC  |  00004    91  |   5D8
   Rhapsody wave 2 W+                    | NPROC  |  00004    91  |   5D9
   Marcato W+ DC-                        | NPROC  |  00004    91  |   5DA
   Marcato W+                            | NPROC  |  00004    91  |   5DB
[ reserved      5DC-5DD ]
   Piccolo W+                            | NPROC  |  00004    81  |   5DE
[ reserved      5DF-5FE ]
   Hitachi W                             | NPROC  |  00004    ??  |   5FF


Some heuristics in case its not clear from the Description:
	M2500 is PCX-W
	M2600 is PCX-W+
	*360 is PCX-W
	*440 is PCX-W
	*5[45]0 is PCX-W+

Other news:
devresources.hp.com website should see some of the PDC docs updated soon.
(Which was already happening before I asked about HVERS/SVERS stuff)


thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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ok, the merge is complete and the head of the tree is now linux-2.4.0.
it's marked with the LINUS_240_DEVEL tag.  sorry for messing it up
so badly.

drivers/pci is almost unaltered from 2.4.0-test10 as grant thinks the
changes which have been made will break our PCI code.

a few conflicts worth noting... jsm had merged some stuff from -test11
into our tree.  dealt with those dual patches, no problem.

kernel/ptrace.c, kernel/module.c got some cache flushing changeswhich
conflicted with some of ours (only textually, not semantically).

tulip_core.c seemed to have absorbed some of our patches.  acenic.c had
some small changes.

we have large outstanding diffs in the scsi directory -- richard
volunteered to take care of this.  some other drivers need submitting
/ updating.

i'm going to send linus a patch tomorrow to get our arch/parisc and
include/asm-parisc trees uptodate in his tree.

-- 
Revolutions do not require corporate support.


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Matthew Wilcox wrote:
> drivers/pci is almost unaltered from 2.4.0-test10 as grant thinks the
> changes which have been made will break our PCI code.

Unless someone objects, My plan is to continue working on CONFIG_SMP
until it boots on my A500. Then merge the 2.4.0 PCI stuff onto our
tree. The problem is names of pci "generic" functions changed -test11
or -test12 and what they do has been slightly changed. Certain things
definitely break A500 support. I need to revisit both the generic and
elroy code so it all works again.

...
> i'm going to send linus a patch tomorrow to get our arch/parisc and
> include/asm-parisc trees uptodate in his tree.

Which means the linus tree still won't build a parisc-kernel.
He'll have missing symbol errors in the PCI subsystem for sure.
But I guess we'll keep getting closer as time goes on.

thanks!
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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"Sean Anaya" wrote:
> Hi all,
> 
> I was wondering if it would be possible to get the latest workable CD image
> (palinux-0.5.iso.gz) updated?

That's in progress but it's not clear when it will be ready.

> I really would like to install Linux on my
> C180-XP machine, but that image doesn't support Cxxx machines according to
> the readme, and I do not have access to another linux machine on which to
> build/put together a bootable CD image.

Well, then you have to wait. :^(

grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253


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On Thu, Jan 25, 2001 at 05:57:14PM -0800, Grant Grundler wrote:
> Unless someone objects, My plan is to continue working on CONFIG_SMP
> until it boots on my A500. Then merge the 2.4.0 PCI stuff onto our
> tree. The problem is names of pci "generic" functions changed -test11
> or -test12 and what they do has been slightly changed. Certain things
> definitely break A500 support. I need to revisit both the generic and
> elroy code so it all works again.

i don't mind waiting.

> Which means the linus tree still won't build a parisc-kernel.
> He'll have missing symbol errors in the PCI subsystem for sure.
> But I guess we'll keep getting closer as time goes on.

right.  i don't anticipate getting all the changes we need into linus'
tree any time soon, possibly not until 2.5 opens.  i think 2.4.0 only
works on x86 & alpha.  i know it doesn't work on ia64 -- some journalists
tried to make a big deal out of this.  i see linus put ppc, sparc &
sparc64 patches into 2.4.1-pre, so I'm guessing 2.4.0 doesn't work on
those arches either.

just for giggles, i merged 2.4.1-pre10 into our tree.  no conflicts.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] CPU detection wrong
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On Thu, 25 Jan 2001, Grant Grundler wrote:

> Matthew Wilcox wrote:
> > we have the following entry in hardware.c:
> > 
> >         { 0x05c0, 0x0fc0, pcxw   },  /* 0x05c0 - 0x05ff */
> 
> David (Kennedy),
> You have time to fix the table based on the "Appendix B" data below?

Done.  I have committed it.  I don't have a PA box near me.  Can someone
check my change to:
	- ensure it compiles
	- it correctly detects all the machines old and new.

> In the long run, I don't want to be involved in maintaining this table.
> An easier way to determine processor type is based on CPU and FP-Coproc
> MODEL information. Our kernel queries for both now and it's just a
> matter of putting it to use.

I don't mind maintaining this table.  It would be goot to keep this table 
and the hardware database in sync.

I will make sure that the hardware database is updated accordingly.

-- 
David Kennedy, Technical Account Manager, Linuxcare, Inc.
613.562.9594 tel, 613.562.9304 fax
dkennedy@linuxcare.com, http://www.linuxcare.com/
Linuxcare.  Support for the revolution.



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>   Care was taken -- the ipl is position independent with the chosen 
>   combination of flags and code design. The ipl makes no assumption about the
>   location it will be loaded into by the ROM (see ipl_s.s). Text offset zero 
>   is correct for linking in the scheme I have chosen. The bootloader determines
>   where is was loaded at runtime and sets the dp and sp accordingly. All of
>   this should be obvious from the code.

It is not obvious to me that the C code is position independent.

>   The specific combination of flags allowed me to get something resembling
>   a straight binary image (by ignoring the header) and position independence.
>   For some reason I can't remember now, -fpic didn't get the job done
>   (perhaps a compiler defect).

When -fpic is used, $global$ is not used as an offset to access data
variables.  Gnu ld doesn't seem to like $global$ not being used:

624 (hiauly1)dave> make
hppa-linux-as                  ipl_s.s -o ipl_s.o
ipl_s.s: Assembler messages:
ipl_s.s:65: Warning: Ignoring subspace decl due to ELF BFD bugs.
ipl_s.s:68: Warning: Ignoring subspace decl due to ELF BFD bugs.
ipl_s.s:83: Warning: Ignoring subspace decl due to ELF BFD bugs.
ipl_s.s:243: Warning: Ignoring subspace decl due to ELF BFD bugs.
hppa-linux-gcc           -fwritable-strings -mdisable-fpregs -fpic -c ipl_c.c
hppa-linux-gcc           -fwritable-strings -mdisable-fpregs -fpic -c rom_interf
ace.c
hppa-linux-ld                  -Ttext 0 -N ipl_s.o ipl_c.o rom_interface.o -L/eh
ic/a/lib/gcc-lib/hppa-linux/egcs-2.91.60 -lgcc -o ipl
ipl_c.o: In function `IPL_main':
ipl_c.o($CODE$+0x60): undefined reference to `$global$'
make: *** [ipl] Error 1

Inspection of ipl_c.o shows that there is no actual reference to $global$
in ipl_c.o.  No errors occur if -fpic is removed.  

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Josiah Carlson <jcarlson@macalester.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Getting parisc-linux installed... (a tutorial)
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Hey peoples,

Like I promised, I pieced together a set of instructions for newbies to
get a decent installation of the .5 image on their machine.  Some is
taken from parisc-linux.org/install.html, which is referenced at the top
of the page.

Thank you everyone for your help.  Unfortunately, the machines that I
was supposed to get working, I lose access to in 2 days.  I don't know
what is going to happen to them, but I'll see about seeing if I can get
them donated to the cause.

Url: http://www.macalester.edu/~jcarlson/install.html

Good luck everyone, it's been fun *smile*,
 - Josiah


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Subject: Re: [parisc-linux] CPU detection wrong
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dkennedy wrote:
> Done.  I have committed it.  I don't have a PA box near me.  Can someone
> check my change to:
> 	- ensure it compiles
> 	- it correctly detects all the machines old and new.

Thanks!

It compiles and boots fine on my c3k:
| model   00005bb0 00000481 00000000 00000002 780cd400 100000f0 00000008 000000b2 000000b2
| CPUID   vers 17 rev 4
| model   9000/785/C3000
| led_init: CPU_HVERSION 5bb
...
| 6. AllegroHigh W  (0) at 0xfffa0000, versions 0x5bb, 0x0, 0x4, 0x0, 0x81
...

(I hadn't noticed we were already printing model string...cool.
I guess it time to start cleaning up boot output.)


> I don't mind maintaining this table.  It would be goot to keep this table 
> and the hardware database in sync.

I see. You are right.

The only way to do that is get regular updates from the maintainer
of "Appendix B". hmmm...but there are some issues with this. Updates
*aren't* regular and only "private" versions of the appendix B is
maintained. The appendix is hand filtered for public consumption to
exclude products which haven't released yet. So we'll just have to
keep grinding along like we do now...complain if something shows
up as "unknown" and it's got a IODC data.

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253


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Subject: [parisc-linux] sh segfaults
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Hi all,
So despite booting our shiny new 2.4.0 kernel fine and being able to rcp
the sources to attempt a native build, "make oldconfig" consistently
sees a segfault:

c3k:/usr/src/linux \<535\>make oldconfig > /dev/null

do_page_fault() pid=561 command='sh' type=15 address=0x000006e4

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001011
r0-3     00000000 00000368 000327a3 bb002490
r4-7     4001399b 00000000 401cf630 401d2fbc
r8-11    00076d74 00000000 bb002490 000c3110
r12-15   ffffffff 00000000 00000000 00000001
r16-19   0000005c 00000000 00000000 401d2fbc
r20-23   fffff000 400eb63c 0007e498 00000008
r24-27   00000000 bb002908 00000002 00076808
r28-31   0000023a 0000002f bb002880 400eb663
sr0-3    00000368 00000368 00000000 00000368
sr4-7    00000368 00000368 00000368 00000368

IASQ: 00000368 00000368 IAOQ: 000327a3 000327a7
 IIR: 483306f8    ISR: 00000368  IOR: 000006e4
ORIG_R28: 00000001
make: *** [oldconfig] Segmentation fault
c3k:/usr/src/linux \<536\>


And redirecting output to /dev/null doesn't always work either.
Sometimes I just get back an error msg.
This wasn't happening with the previous kernels.

This is unfortunately on the same proto-c3k that couldn't run hwclock.sh
at boot up before though that worked fine on my c3k at work. So it
might just be the machine. If others could verify...

thanks,
grant


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From: LaMont Jones <lamont@security.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] lif volume (correct) structs/values
Date: Fri, 26 Jan 2001 01:09:19 -0700
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Not that anyone cares, but...

I created lif* utilities for x86 platforms (everything but lifspace()
should be working, so don't go trying to grow directory entries...
I'll work on that some more eventually, along with trying to submit
the sources into the hp-ux source tree for our decendants...

Of course, this led to the discover that PALO doesn't create LIF
images: it creates things that look enough like LIF images to make
the bootloader happy, but inside they are nothing like a LIF image...
(Which I'm sure comes as no surprise to most everyone, since the
objective was never more than that...)

Should someone want to have PALO create an actual LIF image, that would
be kind of cool.

If people would like the x86 LIF utility _BINARIES_, I'll be happy
to send them to you.  Of course, they won't work on any of the current
PALO LIF images, so I'm not sure what use they'd be to anyone.

(If someone wants to tell me I can release the source, then I'll be
happy to do that too, but I'm not going to work on that side of
things, given the above...)

lamont

=================================================================
/*
 * This defines a BCD date in the LIF format.
 * This may fail on some machines due to implementation-dependent
 * ordering of bit fields.  We expect the first byte to contain year1<<4+year2.
 */
struct date_fmt {
	unsigned year1	: 4;
	unsigned year2	: 4;
	unsigned mon1	: 4;
	unsigned mon2	: 4;
	unsigned day1	: 4;
	unsigned day2	: 4;
	unsigned hour1	: 4;
	unsigned hour2	: 4;
	unsigned min1	: 4;
	unsigned min2	: 4;
	unsigned sec1	: 4;
	unsigned sec2	: 4;
};

struct dentry {
	char fname[MAXFILENAME];	/* Name of file */
	short ftype;			/* Type of file or EOD (end-of-dir) */
	int start;			/* Starting sector */
	int size;			/* Size in sectors */
	char date[6];			/* Should be date_fmt, but on
					   some machines
					   date_fmt gets padded to 8 bytes */
	short lastvolnumber;		/* Both lastvolume flag & volume # */
	int extension;			/* Bizarre user-defined field */
};

struct lvol {
	unsigned short discid;		/* 0..65535, must be 0x8000 */
	char volname[MAXVOLNAME];	/* volume name */
	int dstart;			/* directory start, must be > 0 */
	short dummy1;			/* must be 4096 */
	short dummy2;			/* must be 0 */
	int dsize;			/* length of directory, must be > 0 */
	short version;			/* extension level */
	short dummy3;			/* must be 0 */
	int tps;			/* tracks / surface */
	int spm;			/* surface / medium */
	int spt;			/* sector / track */
	char date[6];			/* see dentry.date comment */
	unsigned short reserved1[99];
	int iplstart; 			/* IPL code location on media */
	int ipllength;			/* size of IPL code */
	int iplentry;			/* IPL entry blocksize for spectrum */
	unsigned short reserved[2];     /* 21..127 */
};

struct lfib { 
	int filedis;			/* fd on our LIF volume */
	int dindex;
	int dstart;			/* Where the directory starts */
	int lastsector;
	int dsize;			/* Size of directory */
	char dirpath[MAXDIRPATH];
	char filename[MAXFILENAME+1];
	struct dentry lfile;
	char buffer[HALF_K];
};

struct dpointer {		/* cat entry */
	int sector;   		/* sector */
	int index;    		/* buffer subscript */
	int start;    		/* data start */
};
=================================================================


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] linux-2.4.0
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Xref: news.gmane.org gmane.linux.ports.parisc:9414

On Fri, Jan 26, 2001 at 12:48:31AM +0000, Matthew Wilcox wrote:
> we have large outstanding diffs in the scsi directory -- richard
> volunteered to take care of this.  some other drivers need submitting
> / updating.

We have a new driver sim700.c that drives 53c700 and 53c710; Linus has a
driver sim710.c that drives just 53c710 (also written by me).  I want to
merge those two before submitting, but havn't managed yet.  sim710.c is
used on older Compaq x86 boxes with on-board scsi controllers.  I have
such a machine, but my merged driver had some problems on it.  I plan on
having another go at that.

The other area is ncr53c8xx.c, which I modified to support 53c720 on
Zalon.  I have sent patches to the maintainer and he has agreed to
integrate them - but nothing has happened for a while.  I'll prod
him again.

I see drivers/net/lasi_82596.c got integrated.  I had planned on
merging that with 82596.c sometime, but I guess there is no urgency
now.  82596.c is mostly used on m68k VME boards.

Richard


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Subject: Re: [parisc-linux] sh segfaults
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Xref: news.gmane.org gmane.linux.ports.parisc:9415

On Thu, Jan 25, 2001 at 10:15:27PM -0800, Grant Grundler wrote:
> 
> Hi all,
> So despite booting our shiny new 2.4.0 kernel fine and being able to rcp
> the sources to attempt a native build, "make oldconfig" consistently
> sees a segfault:
> 
> c3k:/usr/src/linux \<535\>make oldconfig > /dev/null
> 
> do_page_fault() pid=561 command='sh' type=15 address=0x000006e4
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001011
> r0-3     00000000 00000368 000327a3 bb002490
> r4-7     4001399b 00000000 401cf630 401d2fbc
> r8-11    00076d74 00000000 bb002490 000c3110
> r12-15   ffffffff 00000000 00000000 00000001
> r16-19   0000005c 00000000 00000000 401d2fbc
> r20-23   fffff000 400eb63c 0007e498 00000008
> r24-27   00000000 bb002908 00000002 00076808
> r28-31   0000023a 0000002f bb002880 400eb663
> sr0-3    00000368 00000368 00000000 00000368
> sr4-7    00000368 00000368 00000368 00000368
> 
> IASQ: 00000368 00000368 IAOQ: 000327a3 000327a7
>  IIR: 483306f8    ISR: 00000368  IOR: 000006e4
> ORIG_R28: 00000001
> make: *** [oldconfig] Segmentation fault
> c3k:/usr/src/linux \<536\>

On the B180, following cvs update an hour ago, make config gave

do_page_fault() pid=184 command='sh' type=15 address=0x000004ce                                        
                                                                                                       
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                                                  
PSW: 00000000000001001111111100001011                                                                  
r0-3     00000000 00000152 000327a3 bb002450                                                           
r4-7     4001399b 00000000 401cf630 401d2fbc                                                           
r8-11    00076d74 00000000 bb002450 000c3110                                                           
r12-15   ffffffff 00000000 00000000 00000001                                                           
r16-19   0000005c 00000000 00000000 401d2fbc                                                           
r20-23   fffff000 400eb63c 0007e498 00000008                                                           
r24-27   00000000 bb0028c8 00000002 00076808                                                           
r28-31   000000c2 0000002f bb002840 400eb663                                                           
sr0-3    00000152 00000152 00000000 00000152                                                           
sr4-7    00000152 00000152 00000152 00000152                                                           
                                                                                                       
IASQ: 00000152 00000152 IAOQ: 000327a3 000327a7                                                        
 IIR: 483306f8    ISR: 00000152  IOR: 000004ce                                                         
ORIG_R28: 00000001                                                                                     


0x327a0 <command_substitute+756>:       ldw 37c(sr0,r1),r19

Worked on the second, third, fourth attempts.

make dep gave:

make[6]: Entering directory `/build/linux/drivers/media/video'
/build/linux/scripts/mkdep audiochip.h bt848.h bttv-cards.c bttv-driver.c bttv-if.c bttv.h bttvp.h buz.c buz.h bw-qcam.c bw-qcam.h c-qcam.c cpia.c cpia.h cpia_pp.c cpia_usb.c cs8420.h i2c-old.c i2c-parport.c ibmmpeg2.h id.h msp3400.c planb.c planb.h pms.c saa5249.c saa7110.c saa7111.c saa7121.h saa7146.h saa7146reg.h saa7185.c saa7196.h stradis.c tda7432.c tda9875.c tuner-3036.c tuner.c tuner.h tvaudio.c tvaudio.h tvmixer.c videodev.c vino.c zr36057.h zr36060.h zr36120.c zr36120.h zr36120_i2c.c zr36120_mem.c zr36120_mem.h > .depend
make[6]: *** wait: No child processes.  Stop.
make[6]: *** Waiting for unfinished jobs....
make[6]: *** wait: No child processes.  Stop.
make[5]: *** [_sfdep_video] Error 2
make[5]: Leaving directory `/build/linux/drivers/media'
make[4]: *** [fastdep] Error 2
make[4]: Leaving directory `/build/linux/drivers/media'
make[3]: *** [_sfdep_media] Error 2
make[3]: Leaving directory `/build/linux/drivers'
make[2]: *** [fastdep] Error 2
make[2]: Leaving directory `/build/linux/drivers'
make[1]: *** [_sfdep_drivers] Error 2
make[1]: Leaving directory `/build/linux'
make: *** [dep-files] Error 2


What a good time ot go on holiday ;-)

Richard


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From: dkennedy <dkennedy@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] CPU detection wrong
Date: Fri, 26 Jan 2001 12:26:11 -0800 (PST)
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To: Grant Grundler <grundler@cup.hp.com>
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On Thu, 25 Jan 2001, Grant Grundler wrote:

> The only way to do that is get regular updates from the maintainer
> of "Appendix B". hmmm...but there are some issues with this. Updates
> *aren't* regular and only "private" versions of the appendix B is
> maintained. The appendix is hand filtered for public consumption to
> exclude products which haven't released yet. So we'll just have to
> keep grinding along like we do now...complain if something shows
> up as "unknown" and it's got a IODC data.

Ya... Also, it's apparently maintained in a human readable format and not 
in an easily extractable format.  As such, it's even harder to have regular
updates.

It is alright though because the list does not change very often and the only
real changes are new machines.  Once we have critical mass (which I believe we
do) and minor adjustments aren't that much of a problem.

-- 
David Kennedy, Technical Account Manager, Linuxcare, Inc.
613.562.9594 tel, 613.562.9304 fax
dkennedy@linuxcare.com, http://www.linuxcare.com/
Linuxcare.  Support for the revolution.



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Subject: Re: [parisc-linux] lif volume (correct) structs/values
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= Of course, this led to the discover that PALO doesn't create LIF
= images: it creates things that look enough like LIF images to make
= the bootloader happy, but inside they are nothing like a LIF image...
= (Which I'm sure comes as no surprise to most everyone, since the
= objective was never more than that...)
= 
= Should someone want to have PALO create an actual LIF image, that would
= be kind of cool.

I started trying to implement LIF since I was familiar with it from
9000/[234]00 days and I thought it would be cool to be compatible in
some way with HP-format disks.  Then I discovered:

    1) The boot firmware doesn't care that it's boot image is LIF,
    	only that 2 bytes look like LIF.

    2) The boot firmware takes no advantage of LIF -- it uses special
       values stuffed into a magic piece of the LIF header -- which
       requires special code in the LIF tools.  It doesn't even use
       the LIF directory to locate the boot loader on the media.

    3) Wasn't sure LIF format disks could also be DOS-partitioned
       disks.  DOS-partitioned is clunky and old fashioned, but gets
       us ready-made tools, ready-made kernel file-system code, easy
       disk sharing/building with x86, and compatibility with IA64.

Later I learned:

    4) Because our kernel isn't unity-mapped like HP-UX, the HP-UX
       secondary boot loader (ISL aka Mongoose) couldn't load our old
       SOM kernels unless their headers were mangled first.

    5) Mongoose can't load ELF32.  Though a suitable ELF32->SOM converter
       would be fairly easy to write I think, it's more work.

So I feel good about cancelling LIF as our disk and "boot sector" layout.
Where LIF becomes interesting again to me is as a possible compatibility
step for mounting HP-UX-formatted disks.  However I think even there the
critical volume description information is in (proprietary?) tables which
happen to live within LIF space, but at fixed locations so the LIF
is inconsequential and not used by the partition/volume/file-system
code in HP-UX, even to discover the table location.  We could probably
get HP-UX disk compatibility without understanding LIF.

There is an experimental LIF file system for Linux if we want to port it.

	-P


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From: Greg Ingram <ingram@symsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C100 improvements, problems
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On Thu, 25 Jan 2001, Richard Hirst wrote:

> On Thu, Jan 25, 2001 at 11:33:07AM -0600, Greg Ingram wrote:
> > o  I still have trouble with unligned data references.  I've discovered
> > that in addition to tar and make, sleep and nscd also produce this error.
> 
> Sounds like the libpthreads problem, for which a new glibc is being
> built.

Standing by.  Eagerly.  I'd like to see this crate try to roll its own
kernel.
 
> > more works fine.  I can mount the ext2 partition and run more from there.  
> > But when the SCSI disk is root, more page faults. Here's some kernel
> > messages:
> 
> There is a bug in more (really!), now fixed, but needs a rebuild.  If you
> invoke it as /bin/more you'll be ok.

I believe it, I just don't believe it.  Is this related to stack
direction?  (What is it: grows down on parisc but up on Intel and most
other Linux-supported processors?)  If so, what is more fiddling with on
its stack?  Does it alter its behavior based on argv[0]?  Oh well, not
really too important now, I guess.

- Greg


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Subject: [parisc-linux] C100 report, latest CVS bits
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Just wanted to report that I did a CVS update this morning, built and
booted a good kernel.  It's nice to see:

	# uname -a
	Linux apollos 2.4.0 #7 Fri Jan 26 10:52:17 CST 2001 parisc unknown

- Greg



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> It is not obvious to me that the C code is position independent.
> 
> >   The specific combination of flags allowed me to get something resembling
> >   a straight binary image (by ignoring the header) and position independence.
> >   For some reason I can't remember now, -fpic didn't get the job done
> >   (perhaps a compiler defect).
> 
> When -fpic is used, $global$ is not used as an offset to access data
> variables.  Gnu ld doesn't seem to like $global$ not being used:
> 
> 624 (hiauly1)dave> make
> hppa-linux-as                  ipl_s.s -o ipl_s.o
> ipl_s.s: Assembler messages:
> ipl_s.s:65: Warning: Ignoring subspace decl due to ELF BFD bugs.
> ipl_s.s:68: Warning: Ignoring subspace decl due to ELF BFD bugs.
> ipl_s.s:83: Warning: Ignoring subspace decl due to ELF BFD bugs.
> ipl_s.s:243: Warning: Ignoring subspace decl due to ELF BFD bugs.
> hppa-linux-gcc           -fwritable-strings -mdisable-fpregs -fpic -c ipl_c.c
> hppa-linux-gcc           -fwritable-strings -mdisable-fpregs -fpic -c rom_interf
> ace.c
> hppa-linux-ld                  -Ttext 0 -N ipl_s.o ipl_c.o rom_interface.o -L/eh
> ic/a/lib/gcc-lib/hppa-linux/egcs-2.91.60 -lgcc -o ipl
> ipl_c.o: In function `IPL_main':
> ipl_c.o($CODE$+0x60): undefined reference to `$global$'
> make: *** [ipl] Error 1

Here are Jeff Law's comments on using elf32-hppa with PIC:


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: elf32-hppa bfd: $global$ and -fpic
Date: Tue, 01 Jun 1999 18:13:23 -0600
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  In message <199906012242.SAA27523@hiauly1.hia.nrc.ca>you write:
  > Hi Jeff,
  > 
  > The following happens when linking pic code (see below): undefined referenc
  > e
  > to `$global$'.  The problem seems to occur in elf32-hppa.c when $global$ is
  > not found (see code in elf32_hppa_bfd_final_link_relocate).  Do you see an
  > easy solution to handle gcc pic code which does not use $global$?
The existing elf32-hppa tools are not PIC aware or PIC compatible and are
totally inappropriate for just about any work you might be trying to do.  Do
not try to use them, they'll only make your life miserable.  That code is going
to be 100% totally trashed and started over.

jeff

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Jane Vinet <jvinet@linuxcare.com>
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Subject: [parisc-linux] http://parisc-linux.org/ - A New Look!
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Xref: news.gmane.org gmane.linux.ports.parisc:9422

OK, so after many reviews, revisions, discussions the new web site is
live.  Many, many thanks to everyone who endeavored so hard to give the
site a facelift and for constructive feedback which allowed us to create
what we hope will be a dynamic site that is easier to navigate through;
will allow new users to the to site to navigate faster to information
such as FAQs and Supported Hardware, but keeps all of the important
aspects and history that makesthis a space for Open Source developers on
PA RISC Linux to keep the community up to date on all of the trials and
tribulations of the port.  Last but not least, we hope to entice other
Open Source developers in the community to volunteer for tasks on the To
Do list.

A sneak preview courtesy of CVS allowed many of you time to review the
changes and provide useful feedback that had us make the following
changes:

1) Alex - renamed all epl to x files
- redid a Makefile that enables anyone to host the pages anywhere,
without embperl
- changed the embperl syntax to include headers and footers to a new one
2) test is too small - web team removed all the specified fonts
3) Title bars don't mean anything - Jane modified to pick up names of
all of the individual pages
4) All references to thepuffingroup.com have been replaced with
parisc-linux.org
5) Alex added a "Page Last Modified Feature" to time/date stamps all
updates from CVS

Some comments which were made that we did not address were the
following:
1. Too much boilerplate HTML which will quickly get out of sync between
the different files.
   I'm still not quite sure what this comment meant, but I have synched
up both sites so all _content_ is current.
2. Image map should be separate images - it is a design issue - left in
tact.
5. too many tables - not changed
7. too many directories with just one file - done for growth purposes,
consensus was it would stay the same.

While looking through if you notice any glaring errors, broken links,
etc., please send me an email and I will try to address them as quickly
as possible.

Again thanks to everyone at Linuxcare, HP and in the O/S community who
helped out with giving us a new look for a new year!

Jane
-- 
Jane Vinet, Director Professional Services/Canadian Operations
Linuxcare, Inc. 613.562.9260 (tel), 613.562.9700 fax
jvinet@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the Revolution


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excuse me. I have 3 parisc and i want instal on one linux
wath can i download to install linux on it
regards

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BEGIN:VCARD
VERSION:2.1
N:;Rinux
FN:Rinux
URL:http://www.puntoelettronica.com
EMAIL;PREF;INTERNET:rino@puntoelettronica.com
REV:20010127T000222Z
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Go to http://www.macalester.edu/~jcarlson/install.html
I made those instructions last night, and it should work for you.


> This is a multi-part message in MIME format.
> 
> ----------------------------------------------------------------
> excuse me. I have 3 parisc and i want instal on one linux
> wath can i download to install linux on it
> regards


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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: [parisc-linux] My 9000/720 boots, but problems with `ldconfig'
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Hello HP specialists !

The help with the TRAP-18 was successful. I added this to 15/26/etc and
suddenly the system boot from my new built root, but there is a problem
with the /etc/ld.so.cache.

So I used the CD image, installed on my NFS server and ... SUCCESS !
The system boots up !
I have problems with the RTC chip, setting the time with hwclock.
First it needs /dev/rtc, so I compiled this in and added the /dev entry.
But the ioctl reading the time fails. I have to study the NVRAM/RTC chip
type and the implementation of rtc.c.

But as mentioned above I have problems with creating a own
	/etc/ld.so.cache
I tried it with the ldconfig of my host machines (intel-linux, 
sparc-linux) with the `-r' option. My root file system was mounted on
`/mnt/disk0'. So I tried
	ldconfig -r /mnt/disk0
The machine boots with a error not finding libc.6.so.
I tried further to use ldconfig of the CD image on the running linux,
where I have mounted my self created root file system (from the 
cross tool chain) and did again `ldconfig -r /mnt' but it of course
wants to access the file relative to the cross tool chain tree
(/usr/parisc/hppa-linux/etc/ld.so.cache) which was not accessable
from the target machine.

How must I handle this, if I build a root file system from the 
scratch. The glibc source package creates the initial root tree
with the --prefix=$DEST/hppa-linux. This is the initial root of
all files executable for the HP target. And I can further build and
install software there. What is the step (especially concering the
ldconig stuff) to make a "vaild" root from that tree ?

Thanks for the help so far, I am happy to have the 720 up.

Are there news with the E55 devices. 
Again, what is "SPIFI" ?

With friendly regards

	Christoph

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at


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Christoph Plattner wrote:
> I have problems with the RTC chip, setting the time with hwclock.
> First it needs /dev/rtc, so I compiled this in and added the /dev entry.
> But the ioctl reading the time fails. I have to study the NVRAM/RTC chip
> type and the implementation of rtc.c.

You want to use CONFIG_GENRTC - not CONFIG_RTC.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] CONFIG_SMP update
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[ This was posted to the CVS mailing list - I thought it
  might be of general interest. -ggg
]


CVSROOT:	/home/cvs/parisc
Module name:	linux
Changes by:	grundler	01/01/26 17:33:29

Modified files:
	arch/parisc/kernel: Makefile head.S irq.c pdc.c setup.c smp.c 
	arch/parisc64/kernel: Makefile head.S 
	arch/parisc64/lib: Makefile 
	include/asm-parisc: pdc.h 

Log message:
Two sets of fixes here: Makefiles and round two of CONFIG_SMP

First the news :^) (it's 11 now Matt ;^)
hppa64 won't build on head:
o hppa64-linux-gcc is broken. Workaround is to define lock in spinlock_t
as unsigned long and change __ldcw() macro to use ldcd isns.
amodra has fixed gcc in the devel branch but some other problems
prevent him from making that mainline at the moment.
o parisc64 Makefile complete the merge for those files.
o problem is pbus_set_ranges() isn't defined.
Looks like we picked up the new drivers/pci stuff anyway. *sigh*.
I'll look at this first thing next week.

parisc* Makefiles weren't using proper rules to generate .o from .S files.
This is a first hack. Willy will follow up with "clean" versions.

Second round of CONFIG_SMP fixes. I now have both CPU's "online"
and in wide-mode. IPI isn't working. And removing the mdelay's
in smp.c exposes a race condition I haven't figured out yet.
(it's not pdc calls or console output - unless our spinlocks are
broken). If anyone wants to look at either problem, I suggest with
a 2-way j5k running 32-bit to remove some of the variables.



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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: [parisc-linux] The new kernel
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Hi all,

        Xavier and I made 2 differents kernels of the new CVS: Ok for
B132 but our 712 dies after saying:
Firmware does not allow selection of default wide mode

Just after branching to kernel

What does it mean?


From - Thu Nov 08 21:15:25 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] CONFIG_SMP update
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On Fri, Jan 26, 2001 at 04:47:53PM -0800, Grant Grundler wrote:
> o problem is pbus_set_ranges() isn't defined.
> Looks like we picked up the new drivers/pci stuff anyway. *sigh*.
> I'll look at this first thing next week.

damn.  i deliberately excluded all the changes to drivers/pci (except
those required to build successfully).  But I forgot to exclude the changes
to include/linux/pci.h.  Looking over it, the only problem is with:

-void pdev_assign_unassigned_resources(struct pci_dev *dev);
-void pci_set_bus_ranges(void);
+void pdev_enable_device(struct pci_dev *);
+void pdev_sort_resources(struct pci_dev *, struct resource_list *, u32);
+unsigned long pci_bridge_check_io(struct pci_dev *);

err... except that you said `pbus_set_ranges()'.  I can still see it:
setup-bus.c:pbus_set_ranges(struct pci_bus *bus, struct pbus_set_ranges_data *outer)

so I'm not sure exactly what problem you're experiencing.

> parisc* Makefiles weren't using proper rules to generate .o from .S files.
> This is a first hack. Willy will follow up with "clean" versions.

Yup, just cleaning up now.

> (it's not pdc calls or console output - unless our spinlocks are
> broken).

well, that could be.  anyone fresh want to look at the spinlock code.
did i get the sense of the test wrong?

-- 
Revolutions do not require corporate support.


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] CONFIG_SMP update
Date: Sat, 27 Jan 2001 03:34:52 +0000
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To: Grant Grundler <grundler@cup.hp.com>
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On Fri, Jan 26, 2001 at 04:47:53PM -0800, Grant Grundler wrote:
> o problem is pbus_set_ranges() isn't defined.
> Looks like we picked up the new drivers/pci stuff anyway. *sigh*.
> I'll look at this first thing next week.

Wait, I figured it out. The new-style Makefile only includes setup-bus.c
if CONFIG_ARM or CONFIG_ALPHA is defined.  Soadding

obj-$(CONFIG_PARISC) += setup-bus.c

should do the trick.  i'll test that in a moment and if the 64-bit kernel
compiles, i'll commit it.

-- 
Revolutions do not require corporate support.


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From: "Pete" <plaven@ozemail.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP9000 800/G30 and G50 Support?
Date: Sat, 27 Jan 2001 15:38:19 +1100
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Hi Everyone,

I have come across some G30's and G50's in my travels.

I hit the archive (via a google search) and there was mention that 
the G30 was too old and not likely supported, is this the case?

Thanks,


Pete.


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] binfmt_som
Date: Thu, 3 Jun 1999 19:57:04 +0200
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I've checked in a binfmt_som which I think might work.  However,
it definitely won't work until someone defines put_user() & friends
in include/asm-parisc/uaccess.h.

I also inserted a declaration of start_thread in <asm/processor.h> --
some platforms have it as a macro, some have it as a function, so I
think linking will now fail with that as an undefined symbol.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: "Pete" <plaven@ozemail.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] http://parisc-linux.org/ - A New Look!
Date: Sat, 27 Jan 2001 20:04:38 +1100
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To: Jane Vinet <jvinet@linuxcare.com>
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Jane,

> OK, so after many reviews, revisions, discussions the new web site is
> live.  Many, many thanks to everyone who endeavored so hard to give the
> site a facelift and for constructive feedback which allowed us to create
> what we hope will be a dynamic site that is easier to navigate through

I was wondering when it would go live... and I have to say it looks 
pretty good.

One thing I did find though was a stale link.. I'll go find it again...

Where would it be best to post things like this?  webmaster?



Pete.


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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Usage of __attribute__?
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Xref: news.gmane.org gmane.linux.ports.parisc:9434


As part of my effort to fix the alignment problems in libpthread, I am
creating a type with the aligned attribute. However, I discovered
something strange, which I don't know if it is a bug, or is the expected
behaviour (i.e. I am doing something wrong/don't understand how
__attribute__ works).

If I directly declare the type as follows:

    typedef int _lt_spinlock_t __attribute__((aligned(16)));

then EVERY int that follows has the aligned 16 attribute, e.g. just
declaring "int tmp;" gives tmp a 16 byte alignment. So, is that what
you would expect from my above declaration?

I worked around the problem by declaring the type in two steps:

    typedef int _spin16;
    typedef _spin16 _lt_spinlock_t __attribute__((aligned(16)));

Is there a way of combining the above two into one declaration,
without having the undesired side effect of making every int
aligned to a 16 byte boundary?

John Marvin
jsm@fc.hp.com



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From: arete@libero.it
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/50 problem
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This is a multi-part message in MIME format.
--------------3D0CF192243D636A93D481C1
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

I have an 715/50, the iso image 0.5 not work.
I have compilate the kernel version 20010105, with this .config file,
but not work!
Was is the problem???
I have pdc firmware version 1.3 and IODC 1.6

thanks
gerardo di iorio
--------------3D0CF192243D636A93D481C1
Content-Type: text/plain; charset=us-ascii;
 name="Config"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="Config"

#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# General options
#
# CONFIG_SMP is not set
# CONFIG_KWDB is not set
CONFIG_GSC=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
# CONFIG_GSC_WAX is not set
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
# CONFIG_SUPERIO is not set
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_CHASSIS_LCD_LED=y

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# General setup
#
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_BINFMT_SOM=y
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_BINFMT_JAVA is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set

#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_NETLINK is not set
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set

#
# SCSI low-level drivers
#
CONFIG_SCSI_LASI=y
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
CONFIG_LASI_82596=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_NET_SB1000 is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
# CONFIG_DE4X5 is not set
CONFIG_TULIP=y
# CONFIG_DGRS is not set
# CONFIG_DM9102 is not set
# CONFIG_EEPRO100 is not set
# CONFIG_LNE390 is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_RTL8129 is not set
# CONFIG_8139TOO is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Input core support
#
# CONFIG_INPUT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_SERIAL=y
# CONFIG_SERIAL_CONSOLE is not set
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_JOYSTICK is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_SYSV_FS_WRITE is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_NFS_FS is not set
# CONFIG_NFS_V3 is not set
# CONFIG_ROOT_NFS is not set
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
# CONFIG_SUNRPC is not set
# CONFIG_LOCKD is not set
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_MOUNT_SUBDIR is not set
# CONFIG_NCPFS_NDS_DOMAINS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_NLS is not set

#
# Sound Drivers
#
# CONFIG_SOUND is not set

#
# Console drivers
#

#
# Frame-buffer support
#
# CONFIG_FB is not set
# CONFIG_STI_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y


--------------3D0CF192243D636A93D481C1--



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Subject: [parisc-linux] Kernel module loader gived break
Date: Sat, 27 Jan 2001 17:10:51 +0100 (CET)
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Xref: news.gmane.org gmane.linux.ports.parisc:9436

Hi, all

I get messages like 

break 0,0: pid=116 command='cat'
cat[116]: Breakpoint 0

Followed by a register dump when I do some thing that would trigger the
kernel to call modprobe. Modprobe is not in stalled in my system (is it
ported yet?).

/Daniel
-- 



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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Usage of __attribute__?
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Cc: parisc-linux@puffin.external.hp.com
To: jsm@udlkern.fc.hp.com (John Marvin)
Original-X-From: dave@hiauly1.hia.nrc.ca  Sat Jan 27 09:36:50 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:9437

John,

I think you should forward this question to gcc@gcc.gnu.org.

> As part of my effort to fix the alignment problems in libpthread, I am
> creating a type with the aligned attribute. However, I discovered
> something strange, which I don't know if it is a bug, or is the expected
> behaviour (i.e. I am doing something wrong/don't understand how
> __attribute__ works).
> 
> If I directly declare the type as follows:
> 
>     typedef int _lt_spinlock_t __attribute__((aligned(16)));
> 
> then EVERY int that follows has the aligned 16 attribute, e.g. just
> declaring "int tmp;" gives tmp a 16 byte alignment. So, is that what
> you would expect from my above declaration?
> 
> I worked around the problem by declaring the type in two steps:
> 
>     typedef int _spin16;
>     typedef _spin16 _lt_spinlock_t __attribute__((aligned(16)));
> 
> Is there a way of combining the above two into one declaration,
> without having the undesired side effect of making every int
> aligned to a 16 byte boundary?
> 
> John Marvin
> jsm@fc.hp.com
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Kernel module loader gived break
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Xref: news.gmane.org gmane.linux.ports.parisc:9438

On Sat, Jan 27, 2001 at 05:10:51PM +0100, 5116@telia.com wrote:
> Hi, all
> 
> I get messages like 
> 
> break 0,0: pid=116 command='cat'
> cat[116]: Breakpoint 0
> 
> Followed by a register dump when I do some thing that would trigger the
> kernel to call modprobe. Modprobe is not in stalled in my system (is it
> ported yet?).

the modutils source is available by cvs from pehc.  richard was working
on it (he's on holiday right now).  don't remember how far he got.
i know he did a merge with the upstream modutils source at one point.

-- 
Revolutions do not require corporate support.


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From: Richard Henderson <rth@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: abort in eliminate_regs compiling glob.c from glibc
Date: Sat, 27 Jan 2001 12:12:46 -0800
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:9439

On Tue, Nov 14, 2000 at 04:40:52PM -0500, John David Anglin wrote:
>      case USE:
> +      /* Handle insn_list USE that a call to a pure functions ...
> +      new = eliminate_regs (XEXP (x, 0), 0, insn);
> +      if (GET_CODE (new) == MEM)
> +	return XEXP (new, 0);

This is not correct.  You want to return something that still
looks like a USE.  Probably you want

	new = eliminate_regs (XEXP (x, 0), 0, insn);
	if (new != XEXP (x, 0))
	  return gen_rtx_USE (GET_MODE (x), new);
	return x;


r~


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Xref: news.gmane.org gmane.linux.ports.parisc:9440

Anyone else have this problem?


Forwarded by Josiah Carlson <jcarlson@macalester.edu>
---------------- Original message follows ----------------
 From: Rinux-Iternet <rinux@iternet.it>
 To: Josiah Carlson <jcarlson@macalester.edu>
 Date: Sat, 27 Jan 2001 17:46:01 +0100
 Subject: R: [parisc-linux]


excellent for info about linux setup.

I have a serious problem:

I cannot go in boot menu' pressing |esc| key.
my parisc boot directly from scsi hd and not from cd.
How can I use the boot menu??
regards



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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Usage of __attribute__?
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Xref: news.gmane.org gmane.linux.ports.parisc:9441

On Sat, 27 Jan 2001, John Marvin wrote:

> If I directly declare the type as follows:
> 
>     typedef int _lt_spinlock_t __attribute__((aligned(16)));
> 
> then EVERY int that follows has the aligned 16 attribute, e.g. just
> declaring "int tmp;" gives tmp a 16 byte alignment. So, is that what
> you would expect from my above declaration?

Hi John,
  I don't see this behaviour.  I tried

typedef int _lt_spinlock_t __attribute__ ((aligned (16)));
int a;
int b;
_lt_spinlock_t c;
int d;

and got

	.comm	a,4,4
	.comm	b,4,4
	.comm	c,4,16
	.comm	d,4,4

ie. as expected.  Can you post a testcase and version of gcc you used?

Alan Modra
-- 
Linuxcare.  Support for the Revolution.


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Subject: Re: [parisc-linux] Usage of __attribute__?
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Xref: news.gmane.org gmane.linux.ports.parisc:9442

Alan Modra wrote:
>   I don't see this behaviour.  I tried
>
> typedef int _lt_spinlock_t __attribute__ ((aligned (16)));
> int a;
> int b;
> _lt_spinlock_t c;
> int d;
>
> and got
>
>         .comm   a,4,4
>         .comm   b,4,4
>         .comm   c,4,16
>         .comm   d,4,4
>
> ie. as expected.  Can you post a testcase and version of gcc you used?

OK, I was just writing a test case on my pc and hadn't bothered to test it
on hppa. The compiler on my PC was version 2.95.2. The problem doesn't
exist on my native hppa gcc, which is version 2.96. So, although it is
possible that the bug might be 386 only, most likely the bug was machine
independent and was fixed between 2.95.2 and 2.96. I guess I just
don't expect to see many compiler bugs on 386, since it has a lot more
exposure.

Here's the test case:

typedef int _lt_spinlock_t __attribute__((aligned(16)));

struct test
{
	int i1;
	int i2;
	int i3;
	int i4;
};

main()
{
	struct test foo;

	printf("sizeof struct test %d offsets %d %d %d %d\n",
		sizeof(struct test),
		(unsigned long)&foo.i1 - (unsigned long)&foo,
		(unsigned long)&foo.i2 - (unsigned long)&foo,
		(unsigned long)&foo.i3 - (unsigned long)&foo,
		(unsigned long)&foo.i4 - (unsigned long)&foo);
}


GCC Version 2.95.2 -- Native i386 linux result:
    sizeof struct test 64 offsets 0 16 32 48

GCC Version 2.96 -- Native hppa linux result:
    sizeof struct test 16 offsets 0 4 8 12


John


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On Sun, 28 Jan 2001, John Marvin wrote:

> OK, I was just writing a test case on my pc and hadn't bothered to test it
> on hppa. The compiler on my PC was version 2.95.2. The problem doesn't
> exist on my native hppa gcc, which is version 2.96. So, although it is

That's good :-)  2.95.2 has other problems with alignment too, if my
faulty memory is correct.  It doesn't propagate the maximum alignment of
fields within a struct to the struct itself, or something like that.

-- 
Linuxcare.  Support for the Revolution.


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Xref: news.gmane.org gmane.linux.ports.parisc:9445

5116@telia.com wrote:
> Modprobe is not in stalled in my system (is it ported yet?).

As Matthew mentioned, Richard Hirst worked on it and I know it works.
I've used it on the A500 to load SCSI and ACENIC modules for 64-bit kernel.
But I got the binaries directly from Richard. I think however before
posting those, I'd like them rebuilt with the matching glibc/toolchain
that Matt Taggart is working on.

For the adventurous, I would expect all richard's work to be commited to
seperate CVS repository on puffin.external.hp.com called "modutils".
But I haven't looked or tried to build it.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253


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Thomas Marteau wrote:
> Hi all,
> 
>         Xavier and I made 2 differents kernels of the new CVS: Ok for
> B132 but our 712 dies after saying:
> Firmware does not allow selection of default wide mode
> 
> Just after branching to kernel

The kernel does not emit that msg and it only attempts
the call pdc_psw_get_mask() for __LP64__ code.
(see arch/parisc/kernel/setup.c:init_per_cpu())
I just recently added that for CONFIG_SMP stuff.

OTOH, palo will attempt to make that PDC call for 64-bit kernels.
But that's not new code. See ipl/pdc_misc.c.
And it prints the above msg when (PDC_PSW, PDC_RETURN_MASK) is invoked
but wide_mode bit is clear (ie not available).

I also believe you didn't try the same kernel on the B132 as on the 712.
Otherwise, I'm pretty sure it would have given the same error.
As you probably know, "wide mode" is only supported on PA2.0 CPU's
and both systems you tried have PA1.1 (PXC-L or L2).

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253


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Subject: Re: [parisc-linux] Kernel module loader gave break
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On 27 Jan, Matthew Wilcox wrote:
> On Sat, Jan 27, 2001 at 05:10:51PM +0100, 5116@telia.com wrote:
>> Hi, all
>> 
>> I get messages like 
>> 
>> break 0,0: pid=116 command='cat'
>> cat[116]: Breakpoint 0
>> 
>> Followed by a register dump when I do some thing that would trigger the
>> kernel to call modprobe. Modprobe is not in stalled in my system (is it
>> ported yet?).
> 
> the modutils source is available by cvs from pehc.  richard was working
> on it (he's on holiday right now).  don't remember how far he got.
> i know he did a merge with the upstream modutils source at one point.
> 
I have not built modutuils yet, but if I install echo as /sbin/modprobe
the problem goes away.

So something in the request module path does not handle missing files
as it should.

/Daniel
-- 



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From: Markus Werle <markus@lufmech.rwth-aachen.de>
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Subject: [parisc-linux] anonymous cvs password not accepted
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Hi!

I tried to log into Yoiur cvs tree, but it failed.
Which password do I need?
Please update Your web-page.

Many thanks,

Markus

cvs -d :pserver:anonymous@puffin.external.hp.com:/home/cvs/parisccv
login anonymous
(Logging in to anonymous@puffin.external.hp.com)
CVS password:
cvs login: authorization failed: server puffin.external.hp.com rejected
access to /home/cvs/parisccv for user anonymous



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From: Jane Vinet <jvinet@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] anonymous cvs password not accepted
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Hi Markus, as the web page says, for anonymous cvs access you don't need
a password - when password comes up, hit enter.

Jane

Markus Werle wrote:
> 
> Hi!
> 
> I tried to log into Yoiur cvs tree, but it failed.
> Which password do I need?
> Please update Your web-page.
> 
> Many thanks,
> 
> Markus
> 
> cvs -d :pserver:anonymous@puffin.external.hp.com:/home/cvs/parisccv
> login anonymous
> (Logging in to anonymous@puffin.external.hp.com)
> CVS password:
> cvs login: authorization failed: server puffin.external.hp.com rejected
> access to /home/cvs/parisccv for user anonymous
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
Jane Vinet, Director Professional Services/Canadian Operations
Linuxcare, Inc. 613.562.9260 (tel), 613.562.9700 fax
jvinet@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the Revolution


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Subject: Re: [parisc-linux] anonymous cvs password not accepted
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Jane Vinet wrote:

> Hi Markus, as the web page says, for anonymous cvs access you don't need
> a password - when password comes up, hit enter.
>
> Jane

sorry, but *this* does *not* work.
This is why I mailed to Your list.

Many thanks for a fix,


Markus


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] anonymous cvs password not accepted
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On Mon, Jan 29, 2001 at 02:55:55PM +0100, Markus Werle wrote:
> I tried to log into Yoiur cvs tree, but it failed.
> cvs -d :pserver:anonymous@puffin.external.hp.com:/home/cvs/parisccv

> access to /home/cvs/parisccv for user anonymous

you mistyped.  /home/cvs/parisc is the directory.

-- 
Revolutions do not require corporate support.


From - Thu Nov 08 21:15:26 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] [Mailer-Daemon@www.linux.org.uk: Mail delivery failed: returning message to sender]
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someone's got their mail system misconfigured.  could somone else forward
this to marcus, please?

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This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. The following address(es) failed:

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From: Matthew Wilcox <matthew@wil.cx>
To: Markus Werle <markus@lufmech.rwth-aachen.de>
Cc: parisc-linux@thepuffingroup.com
Subject: Re: [parisc-linux] anonymous cvs password not accepted
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Sender:  <willy@www.linux.org.uk>

On Mon, Jan 29, 2001 at 02:55:55PM +0100, Markus Werle wrote:
> I tried to log into Yoiur cvs tree, but it failed.
> cvs -d :pserver:anonymous@puffin.external.hp.com:/home/cvs/parisccv

> access to /home/cvs/parisccv for user anonymous

you mistyped.  /home/cvs/parisc is the directory.

-- 
Revolutions do not require corporate support.

----- End forwarded message -----

-- 
Revolutions do not require corporate support.


From - Thu Nov 08 21:15:26 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Gnu cpp bug or feature?
Date: Mon, 29 Jan 2001 21:17:31 +0000
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On Wed, Jan 10, 2001 at 01:50:13PM +0000, Matthew Wilcox wrote:
> On Tue, Jan 09, 2001 at 11:31:49PM -0700, John Marvin wrote:
> > 
> > I just discovered that the gnu cpp doesn't allow * and = to be concatenated.
> > What I am trying to do is the following:
> 
> GNU cpp does do some slightly strange things to avoid accidentally creating
> C tokens.  However, you should be able to work around this behaviour by using
> the ## operator.  try...

ok, this problem is now fixed.  Our Makefiles have been broken for a
_long_ time, so -traditional was not being passed to cpp.  Now that it
is, it will no longer have this behaviour.

This has some downsides; some macro definitions no longer work the way
you expect them to if you've been brough up on ansi c, like i was.
in particular, multiline #defines no longer seem to work, and token
concatenation with ## no longer works.  Fix the former with #ifndef
__ASSEMBLY__ ... #endif around the macros which don't work and fix
the latter by replacing:

#define ENTRY_SAME(_name_) sys_ ## _name_

with

#define ENTRY_SAME(_name_) sys_/**/_name_

of course, this won't work with the cpp in ANSI mode, so if this is in
a header file, you'll need to #ifdef __ASSEMBLY__ #else #endif your
way around it.  fortunately the only example which needed it so far
was syscall.S, not a header file.

as far as I can tell, everything now seems to be working; i recommend only
fixing things as we run into problems with this.  John, do you want to
change back to the ADDIB= form now, leave it as it is, or have me do it?

> >     ADDIB>      -1,%r1,1b
> >     ADDIB=      -1,%arg3,fdoneloop

-- 
Revolutions do not require corporate support.


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From: Alex deVries <adevries@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Lasi and Dino documentation!
Date: Fri, 4 Jun 1999 00:15:40 -0400 (EDT)
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I'm very happy to announce HP's release of the two pricipal device
controller chips inside the A180C, Dino and Lasi. 

Dino is the GSC to PCI bridge found on the A180C, Lasi is the
SCSI/Lan/Parallel/Serial/RTC/PS2/floppy controller that's also found in
the 712.

You can find links for them on our documentation page,
http://www.thepuffingroup.com/parisc/documentation.html.

I've only scanned the docs, but they look quite complete at this point.

A big fat thanks is owed to John Sontag and all the others from HP who
worked to get this documentation released. Releasing documentation that
until now has been privately held is more proof that HP is committed to
helping us with this port.

- alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



From - Thu Nov 08 21:15:26 2018
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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] register_fallback_cpu()
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Hi all,
I committed a change to address some deficiencies in our hp_devices
handling and the change also affected older architectures. In particular,
I replaced register_modules() interface (whose name neither Matthew
nor I liked) with two functions: alloc_pa_dev() and register_pa_dev().

register_fallback_cpu() was one of the functions used by older HW
that I was not able to test. If anyone has time to pull a new kernel
and play with it, that would be good. Please let me know ASAP, if I
broke it. I'm happy to help fix it again.

grant


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Subject: [parisc-linux] /proc/bus/gsc
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What is the plan for /proc/bus/gsc?

I see some unfinished support in drvices/gsc/gsc.c. and what about
devices which are not really GSC? Should there be a /proc/pdc/devices
for the complete story?

/Daniel 
-- 



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From: "WITTERT,REYNDERT \(Non-HP-Netherlands,ex1\)" <reyndert_wittert@non.hp.com>
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Is there some alternative for ioscan in linux?

Greets,
Reyndert

-- 
      _/               Reyndert Wittert
     _/                Assistent Customer Information Manager
    _/_/_/  _/_/_/     Hewlett-Packard Nederland B.V.
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                       Fax     +31 20 547-7778   
  i  n  v  e  n  t     Email   Reyndert_Wittert@non.hp.com	
                          
                          
          


 


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Subject: [parisc-linux] _working_ rbootd for redhat
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Hi all,

First up, thanks all - I love your work.

after much trawling of the list archive and altavista I was able to get rbootd
to at least boot the kernel on a 720.
CPU(s): 1 x PA7000 (PCX-S) at 50.000000 MHz

Given that finding this was not easy, how can we the patched source .tar.gz
available more easily on parisc-linux.org or puffin.external.hp.com ?

I _really_ hope its not somewhere obvious and I am just a nuff-nuff.

Also, Is there anyway to hard boot this machine form the serial port when
a HPMC has happened?
(eg, control sequence).

thanks,
Damian
penfold@customware.com.au


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From: "Pete" <plaven@ozemail.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP9000 800/G30 and G50 Support?
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Hi everyone,

> I have come across some G30's and G50's in my travels.
> 
> I hit the archive (via a google search) and there was mention that 
> the G30 was too old and not likely supported, is this the case?

I still haven't been able to acertain if this archcetecture is supprted 
with the linux port...  Anyone willing to offer a yes or no?

Pete.


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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP9000 800/G30 and G50 Support?
Date: Tue, 30 Jan 2001 13:49:21 +0000
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On Tue, Jan 30, 2001 at 06:01:20PM +1100, Pete wrote:
> Hi everyone,
> 
> > I have come across some G30's and G50's in my travels.
> > 
> > I hit the archive (via a google search) and there was mention that 
> > the G30 was too old and not likely supported, is this the case?
> 
> I still haven't been able to acertain if this archcetecture is supprted 
> with the linux port...  Anyone willing to offer a yes or no?

it's in the faq.

-- 
Revolutions do not require corporate support.


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From: Christoph Plattner <christoph.plattner@alcatel.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Server E55 (9000/856) - PDC console, SPIFI
Date: Tue, 30 Jan 2001 15:01:28 +0100
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Hello PA-RISC GURUS !

* Is it possible to use the PDC console as system console ?

* Is the PDC documentation enough to find out or to write a
	driver (not only for printk !) ?

* Concerning the E55 interfaces, I got the tip to search
	with the keyword "SPIFI". What does this mean ?
	How can I search in the "whole" mailing list ?

With friendly regards
	Christoph

-----------------------------------------------------------------
private:        christoph.plattner@dot.at
company:        christoph.plattner@alcatel.at


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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] _working_ rbootd for redhat
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On Tue, Jan 30, 2001 at 09:48:18PM +1100, penfold@customware.com.au wrote:
> after much trawling of the list archive and altavista I was able to get rbootd
> to at least boot the kernel on a 720.
> CPU(s): 1 x PA7000 (PCX-S) at 50.000000 MHz

great.

> Given that finding this was not easy, how can we the patched source .tar.gz
> available more easily on parisc-linux.org or puffin.external.hp.com ?

ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/

> I _really_ hope its not somewhere obvious and I am just a nuff-nuff.

*shrug*.  anyone want to do something with the parisc-linux booting
howto that's at oswg.org?

> Also, Is there anyway to hard boot this machine form the serial port when
> a HPMC has happened?
> (eg, control sequence).

i doubt it.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] question
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On Tue, Jan 30, 2001 at 11:05:58AM +0100, WITTERT,REYNDERT (Non-HP-Netherlands,ex1) wrote:
> Is there some alternative for ioscan in linux?

Not yet.  How to do it is being discussed.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] _working_ rbootd for redhat
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Hello !

I also have a 720 (9000/720, with 50Mhz) and I often thought
about the idea of using rbootd.

Can you give me some hints, what you have done (what steps)
(I also have RedHat !).

What to do on the 720 machine (with `path lan0.....' I think),
wnat to do on the host, and how to prepare the linux boot image 
(lifimage) ?

By the way, have you booted linux now ?
I had the problem with the trap 18 (perhaps you saw it)
on the 720. It could be fixed by adding the `case 18:'
to that case (15,26, etc), and suddenly the 720 was working !!

With friendly regards

	Christoph Plattner



penfold@customware.com.au wrote:
> 
> Hi all,
> 
> First up, thanks all - I love your work.
> 
> after much trawling of the list archive and altavista I was able to get rbootd
> to at least boot the kernel on a 720.
> CPU(s): 1 x PA7000 (PCX-S) at 50.000000 MHz
> 
> Given that finding this was not easy, how can we the patched source .tar.gz
> available more easily on parisc-linux.org or puffin.external.hp.com ?
> 
> I _really_ hope its not somewhere obvious and I am just a nuff-nuff.
> 
> Also, Is there anyway to hard boot this machine form the serial port when
> a HPMC has happened?
> (eg, control sequence).
> 
> thanks,
> Damian
> penfold@customware.com.au
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] list archives
Date: Fri, 4 Jun 1999 10:17:07 -0400 (EDT)
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To: justin@master.debian.org (Justin Maurer)
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Xref: news.gmane.org gmane.linux.ports.parisc:9465

Good idea.  It would be great if the list could be browsed with
netscape, etc.

Dave

> 
> just curious - 
> 	are there archives of this mailing list available? i really think	they'd be useful, even if the list is fairly light on traffic at the moment.
> 
> thanks,
> justin
> 
> -- 
> -------------------------------------------------------------
> # Justin Maurer                                GNOME Hacker #
> # justin@debian.org                         Slashdot Author #
> # http://slashdot.org/           Debian GNU/Linux Developer #
> #     09 84 FC 03 13 AA 4A AF  F6 A4 85 9D 8C 96 B6 A4      #
> -------------------------------------------------------------
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Server E55 (9000/856) - PDC console
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On Tuesday 30 January 2001 15:01, Christoph Plattner wrote:
> Hello PA-RISC GURUS !
>
> * Is it possible to use the PDC console as system console ?

The PDC-interface misses a function to get interrupts when a key was pressed. 
To get around that problem you would need to poll the whole time, which would 
result in a *very* bad performance.
Instead of using the PDC-console it is much better to get the STI console 
working. I've already begun to rewrite the current STI code from prumpf, 
which you can find under /drivers/video/sti/*.
Currently both - the new and the old STI code - is broken and unfunctional, 
but I will continue to work on it as far as time permits.

Greetings,

	Helge.


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Server E55 (9000/856) - PDC console
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Helge Deller wrote:

> Instead of using the PDC-console it is much better to get the STI console 
> working.

I highly doubt the E55 (and similar servers) have STI.
And I'm not sure HP ever made an HP-PB graphics device - just
not enough bandwdith on HP-PB to make it useful.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253


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Carlos, I've forwarded your e-mail to our mailing list since I'm not
the expert on 715 hardware.  You might also want to read through the
FAQ and other things on our web site, www.parisc-linux.org.

The CD is pretty old and I suspect you'll have better luck with a
newer kernel.  We are planning to produce a "0.6" ISO image Real
Soon Now (tm).  Alternatively you can get a newer kernel
from puffin.external.hp.com and boot from that kernel using either
a bootp server to serve it to the 715, or DAT tape if you happen
to have that.  Use the Linux kernel command line to indicate the
0.5 CD is its root (root=/dev/scd0).

= I Have some problems installing Linux, hope you have a couple of minutes =
= to give a hand.
= 
= I have a Apollo 715/75 and I would like to install Linux in it. What I =
= have done so far is:
= downloaded "palinux-0.5.iso.gz"
= create a CD using Adaptec CD Creator (on a PC)
= 
= I tried to boot from the CD rom and evrething seems to start ok, bu =
= right after detecting the Scorpio Sr. hardware I get a Stack dump and =
= the workstation doesn't do anything else.
= 
= thanks in advance
= 
= Regards
= 
= Carlos Acevedo
= Computer Modelling Group


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"WITTERT,REYNDERT (Non-HP-Netherlands,ex1)" wrote:
> Is there some alternative for ioscan in linux?

For linux, in HP, I think there is.
Read the in-house linux news group archives or search
for "ioscan linux" on HP's intranet.

There is dicussion about how to "do it right" for parisc-linux.
But don't expect anything in the next month or two to come out
of those discussions.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253


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On Jun 03, Justin Maurer wrote:
> 	are there archives of this mailing list available? i really think	they'd be useful, even if the list is fairly light on traffic at the moment.

Not quite--they're ready to go, I just need to touch base with Chris
and make sure that we agree on where to hang them off the web page,
and stuff like that.  I'll see about getting that done this weekend.

-Phil


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Subject: Re: [parisc-linux] Lasi and Dino documentation!
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Alex deVries wrote:
> 
> I'm very happy to announce HP's release of the two pricipal device
> controller chips inside the A180C, Dino and Lasi. 

Alright! (now I can talk about them!)

> Dino is the GSC to PCI bridge found on the A180C,

Also found on B, C, and J-class machines.
Newer B/C  (eg C200+) class have built-in PCI LAN/SCSI below GSCtoPCI.
So support is required to boot from built-in devices.

Also found on several networking HSC cards. Aka "Card-mode Dino".
Can be found in D, K and T-class. (eg. Dual Port HSC 100BT)

I'm very familiar with how this chip works and will try
to answer questions in my spare time.

grant

>Lasi is the
> SCSI/Lan/Parallel/Serial/RTC/PS2/floppy controller that's also found in
> the 712.
> You can find links for them on our documentation page,
>
> http://www.thepuffingroup.com/parisc/documentation.html.
> 
> I've only scanned the docs, but they look quite complete at this point.
> 
> A big fat thanks is owed to John Sontag and all the others from HP who
> worked to get this documentation released. Releasing documentation that
> until now has been privately held is more proof that HP is committed to
> helping us with this port.
> 
> - alex
> 
> -- 
> Alex deVries <puffin@redhat.com>     
> Red Hat Contrib Net maintainer          
> Ottawa, Canada  
> PA RISC Linux Porting Team
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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Subject: [parisc-linux] making a bootable image
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I've committed my changes which basically fix up the kernel so you can
build it with 'make bootable', and the bootstrap code will be setup
correctly in a file called bootstrap.bin.

This handles all the ISL and LIF stuff that we shouldn't have to deal with
anymore.

- Alex

-- 
Alex deVries <puffin@redhat.com>     
Red Hat Contrib Net maintainer          
Ottawa, Canada  
PA RISC Linux Porting Team



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Subject: Re: [parisc-linux] making a bootable image
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> I've committed my changes which basically fix up the kernel so you can
> build it with 'make bootable', and the bootstrap code will be setup
> correctly in a file called bootstrap.bin.


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Original-X-From: time to time I have had various troubles with cvs updates.  For
example: 
Xref: news.gmane.org gmane.linux.ports.parisc:9474

...
P linux/arch/parisc/config.in
P linux/arch/parisc/defconfig
cvs server: Updating linux/arch/parisc/boot
cvs server: Updating linux/arch/parisc/boot/boot_code
cvs [server aborted]: cannot open directory /home/cvs/parisc/linux/arch/parisc/b
oot/boot_code: No such file or directory

Dave

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: tor@spacetec.no (Tor Arntsen)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] making a bootable image
Date: Wed, 9 Jun 1999 22:48:08 +0200
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In-Reply-To: Alex deVries <adevries@redhat.com>
       "[parisc-linux] making a bootable image" (Jun  9, 19:44)
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Xref: news.gmane.org gmane.linux.ports.parisc:9475

On Jun 9, 19:44, Alex deVries wrote:
>I've committed my changes which basically fix up the kernel so you can
>build it with 'make bootable', and the bootstrap code will be setup
>correctly in a file called bootstrap.bin.

For those of you who are able to actually compile all the way through,
what does your .config look like?

echo `grep -v # .config | grep -v 'not set' | grep 'CONF'` \
|mail parisc-linux@thepuffingroup.com

:-)

-Tor


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From: tor@spacetec.no (Tor Arntsen)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] build success
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Alex deVries mailed me and said he used the default configs, so I just
pressed return to all make config questions and hey presto it compiled
(except for one thing, coming back to that).

Cross-compiling environment: SGI Octane, irix 6.5, self-built cross compiler
and binutils (from CVS), linux kernel from cvs.

One little thing failed for me (people are obviously cross-compiling on
Linux in general, I guess).  There is no /bin/bash on SGI, it mostly lives
in /usr/freeware/bin.  The following patch fixed it for me (typical Perl
portability hack):

------
Index: arch/parisc/hp//boot/boot_tools/createheader.sh
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/hp/boot/boot_tools/createheader.sh,v
retrieving revision 1.1
diff -u -r1.1 createheader.sh
--- createheader.sh	1999/06/09 18:28:04	1.1
+++ createheader.sh	1999/06/09 21:20:20
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # This is a script that creates a header given the 
 # ipl and vmlinux file locations.
------

-Tor


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Trying to get HP-UX working
Date: Wed, 9 Jun 1999 22:43:14 +0100 (BST)
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In-Reply-To: <199906092126.XAA02287@pallas.spacetec.no> from "Tor Arntsen" at Jun 9, 99 11:26:08 pm
Xref: news.gmane.org gmane.linux.ports.parisc:9477

Well I have the HP a hub and some cabling. The web console works great (cute
hack) and it understands my subnetting although it came shipped on an 
IP address belonging to RIPE not HP or RFC1597 (duh)

I can't however get HP/UX to set up an interface 

	194.168.151.23 netmask 255.255.255.224

which I really need to do. Also before I go and build all the sane tools
so the box is usable has anyone already built a big tar file of HP/UX binaries
of gcc/bash/fileutils etc ?

Alan


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
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Tor Arntsen wrote:
> 
> Alex deVries mailed me and said he used the default configs, so I just
> pressed return to all make config questions and hey presto it compiled
> (except for one thing, coming back to that).


Ack.  I'm having problems hitting 'reply all'.

> -#!/bin/bash
> +#!/usr/bin/env bash

I've changed this to /bin/sh, and that's committed now.

- Alex


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From: tor@spacetec.no (Tor Arntsen)
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       "Re: [parisc-linux] build success" (Jun  9, 23:02)
X-Mailer: Mail User's Shell (7.2.5 10/14/92)
Xref: news.gmane.org gmane.linux.ports.parisc:9479

On Jun 9, 23:02, Alex deVries wrote:
>Ack.  I'm having problems hitting 'reply all'.
>
>> -#!/bin/bash
>> +#!/usr/bin/env bash
>
>I've changed this to /bin/sh, and that's committed now.

I assumed there was something bash specific in that script (but I didn't 
look).

make clean; make bootable worked fine with your update (1.5 minutes
build time on an Octane.. ahh, I'll start compiling my i386 kernel 
there I guess :-)

-Tor


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From: xomina <ryan@email.labmed.umn.edu>
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Subject: Re: [parisc-linux] Trying to get HP-UX working
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On Wed, 9 Jun 1999, Alan Cox wrote:

> which I really need to do. Also before I go and build all the sane tools
> so the box is usable has anyone already built a big tar file of HP/UX binaries
> of gcc/bash/fileutils etc ?

here's the gnu directory taken from my HP-UX 10.20 machine at work.  it
includes the info/, man/, include/, etc directories, so let me know if
you'd prefer just bin/.  it's 11.5 MB gzipped right now.  and go easy, i
put it on my lowly P120 Debian machine... 8)

http://209.181.241.33/~oig/gnu.tar.gz

ryan


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trying to get HP-UX working
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> 
> 
> On Wed, 9 Jun 1999, Alan Cox wrote:
> 
> > which I really need to do. Also before I go and build all the sane tools
> > so the box is usable has anyone already built a big tar file of HP/UX binaries
> > of gcc/bash/fileutils etc ?
> 
> here's the gnu directory taken from my HP-UX 10.20 machine at work.  it
> includes the info/, man/, include/, etc directories, so let me know if
> you'd prefer just bin/.  it's 11.5 MB gzipped right now.  and go easy, i
> put it on my lowly P120 Debian machine... 8)

Are they static so that they will work without shared libraries?

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trying to get HP-UX working
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Xref: news.gmane.org gmane.linux.ports.parisc:9482

> here's the gnu directory taken from my HP-UX 10.20 machine at work.  it
> includes the info/, man/, include/, etc directories, so let me know if
> you'd prefer just bin/.  it's 11.5 MB gzipped right now.  and go easy, i
> put it on my lowly P120 Debian machine... 8)
> 
> http://209.181.241.33/~oig/gnu.tar.gz

Grabbing. You win an official hero point 


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In-Reply-To: <E10rq7u-0000km-00@the-village.bc.nu> from "Alan Cox" at Jun 9, 99 10:43:14 pm
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> 
> Well I have the HP a hub and some cabling. The web console works great (cute
> hack) and it understands my subnetting although it came shipped on an 
> IP address belonging to RIPE not HP or RFC1597 (duh)
> 
> I can't however get HP/UX to set up an interface 
> 
> 	194.168.151.23 netmask 255.255.255.224
> 
> which I really need to do. Also before I go and build all the sane tools
> so the box is usable has anyone already built a big tar file of HP/UX binaries
> of gcc/bash/fileutils etc ?

There's alot of stuff on the HP-UX Porting center; we've got a mirror here
at hpux.cae.wisc.edu, there's also a UK one at http://hpux.csc.liv.ac.uk

-Erik

> 
> Alan
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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Alan Cox writes...

 >I can't however get HP/UX to set up an interface 
 >
 >	194.168.151.23 netmask 255.255.255.224

Are you getting errors or do you just need to know where to make changes? 
If it's the former, post the errors and maybe someone can help. If its the 
latter, you probably want to edit /etc/rc.config.d/netconf

 >which I really need to do. Also before I go and build all the sane tools
 >so the box is usable has anyone already built a big tar file of HP/UX 
binaries
 >of gcc/bash/fileutils etc ?

I think it would be nice for all the developers to be sync'ed up and using 
the latest tools. Right?

Does it make sense to go one step further and package them in either HP's 
SD depot format or alternatively RPM(and provide RPM on HP-UX)? I have some 
SD experience and could automate the packaging if needed.

Another, somewhat larger, option would be to produce a custom HP-UX image 
for the people working on the port. We can slap that image on bootable CDs 
for distribution. Rebuilding a system from one of these CD's only takes 
about 20 minutes. The image could be rebuilt fairly easily if it needed to 
be updated.  I can also help with this if needed.

What does everyone think?

Thanks,

--
Matt Taggart       Technical Consulting Lab
taggart@fc.hp.com  Workstation Systems Division
Ft Collins, CO     Hewlett Packard




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On Wed, 9 Jun 1999, John David Anglin wrote:

> > here's the gnu directory taken from my HP-UX 10.20 machine at work.  it
> 
> Are they static so that they will work without shared libraries?

oops, no, they appear to be dynamic.  at least, i assume that's what this
means:

mercury:/usr/local/gnu/bin> chatr bash
bash: 
         shared executable 
         shared library dynamic path search:
             SHLIB_PATH     disabled  second 
             embedded path  disabled  first  Not Defined
         internal name:
             bash
         shared library list:
             dynamic   /usr/lib/libc.1
         shared library binding:
             deferred 
         static branch prediction disabled
         data page size: 4K
         instruction page size: 4K
mercury:/usr/local/gnu/bin> 

sorry, i didn't install them on this machine, and wasn't aware they
weren't statically-linked.  comes from being a non-kernel programmer and
being a bit hasty to find something i could possibly help out with, i
suppose!

ryan


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Xref: news.gmane.org gmane.linux.ports.parisc:9486

>  >I can't however get HP/UX to set up an interface 
>  >
>  >	194.168.151.23 netmask 255.255.255.224
> 
> Are you getting errors or do you just need to know where to make changes? 
> If it's the former, post the errors and maybe someone can help. If its the 
> latter, you probably want to edit /etc/rc.config.d/netconf

Umm webconsole doesnt support cut/paste

ifconfig lan0 194.168.151.23 netmask 255.255.255.224
ifconfig: ioctl (SIOCSIFNETMASK): bad value

Which is kind of a problem

> for distribution. Rebuilding a system from one of these CD's only takes 
> about 20 minutes. The image could be rebuilt fairly easily if it needed to 
> be updated.  I can also help with this if needed.
> 
> What does everyone think?

A set of GNU tools for HP/UX in a easy format is probably going to make many
HP/UX users happy too - SCO has the "skunkware" CD which is basically a 
GNU brain transplant or SCO and is a similar idea.

Alan



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From: Carl Johnson <cjs@imt.net>
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Subject: [parisc-linux] OFF TOPIC: HP 9000 J200
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I have aquired a J200 and am wondering about any known problems with
it, the hardware, in the current snapshot of the PA-RISC devel of linux.
I have built a cross complier for it so I will build the tree myself on an i386,
FYI, the machine runs HP-UX 11.0 currently.

-- 
Carl Johnson


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Subject: [parisc-linux] booting problems
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Okay, I've committed a couple of fixes to make the building of the
bootable image go a bit smoother.  Thanks to John for his patch that
doesn't require /dev/zero existing to create the sparse file.

And now it passes the LIF magic and checksum, and dies.  Here's a
hand-typed copy of the console:

"
Main Menu: Enter command > boot p2
Interact with IPL (Y, N, or Cancel)?> n

Booting...
Network Station Address 001039-037944
System IP Address 192.168.1.56
Server IP Address 192.168.1.52

Boot IO Dependant Code (IODC) revision 2


SOFT Booted.
"

And then absolutely nothing.  The cute little heart on the front panel
is stuck on. According to the inside of the top cover (oh, what a great
place to put debug info), this means: "System board fault, HPMC or
Unknown fault".  At this point I'm going for the third.

Looks like we just need to compare a large chunk of the bootable binary
to figure out what's happening.

- Alex


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From: Bill Katz <billk@sr.hp.com>
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|SOFT Booted.
|"
|
|And then absolutely nothing.  The cute little heart on the front panel
|is stuck on. According to the inside of the top cover (oh, what a great
|place to put debug info), this means: "System board fault, HPMC or
|Unknown fault".  At this point I'm going for the third.
|
|Looks like we just need to compare a large chunk of the bootable binary
|to figure out what's happening.
|
|- Alex

Just a note about the "cute little heart".  Assuming that the A180 is like
the B180, there are 4 LEDs on the front.  During booting the BootROM
sends one nibble of the chassis code to those 4 LEDs.  WHen HP-UX is
running, the LEDs are written during the timer interrupt.  It's just
a memory mapped register, nothing fancy.  So unless someone has specifically
coded something into Linux to write to the LEDs, it would be the 
expected behavior that they would stay in the last state the BootROM
(or IPL) left them.

	-Bill (Hardware-R-Us) Katz


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Alex --
| is stuck on. According to the inside of the top cover (oh, what a great
| place to put debug info), this means: "System board fault, HPMC or
| Unknown fault".  At this point I'm going for the third.
| 
| Looks like we just need to compare a large chunk of the bootable binary
| to figure out what's happening.
| 

Not so fast, there is probably more data to be had. Discounting the system
board or unknown faults, you code has caused an HPMC, High Priority
Machine Check. This could be several things, but a good guess would be
either execution of an invalid instruction (you jumped into data), or
you attempted to read a address where there is no hardware to respond.

The way to check is to reboot the system through self-test and when you
reach the boot console handler execute a "SER PIM" command.  PIM is an
area of non-volatile memory that is filed in by the routine which
handled the HPMC and is filled with the state of the machine when the
HPMC was encountered.  From this you should be able to obtain the
address of the instruction which was executing when the problem occured,
and should be able to determine what type of problem occured (illegal
instruction, bad memory reference, etc.)  The PIM dumps are timestamped,
so make sure that your system time is up to date and that that the PIM
is from your crash.

Do your systems include remote management cards? The remote management
cards offer the ability to force a PIM dump through a TC (Transfer of
Control) command, or to force a reset. They also will display chassis
codes. Chassis codes, see the PDC_CHASSIS call in your pdc32.pdf
documentation), are displayed on the 25th line of an HPTERM compatible
terminal or web console session. They are communicated to the management
cards over a dedicated hardware interface, and so inserting them into
your code gives a very low level way to display debug data.

KMB


--
+============================================================+
|       Kirk Bresniker    	(916) 785-5677		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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Kirk Bresniker wrote:
> Discounting the system
> board or unknown faults, you code has caused an HPMC, High Priority
> Machine Check. This could be several things, but a good guess would be
> either execution of an invalid instruction (you jumped into data), or
> you attempted to read a address where there is no hardware to respond.

It's likely the bootstrap code jumping to some random bit of data.

> 
> The way to check is to reboot the system through self-test and when you
> reach the boot console handler execute a "SER PIM" command.  PIM is an
> area of non-volatile memory that is filed in by the routine which
> handled the HPMC and is filled with the state of the machine when the
> HPMC was encountered.  From this you should be able to obtain the
> address of the instruction which was executing when the problem occured,
> and should be able to determine what type of problem occured (illegal
> instruction, bad memory reference, etc.)  The PIM dumps are timestamped,
> so make sure that your system time is up to date and that that the PIM
> is from your crash.

All that looks very helpful, and it's the first time I'd heard about it.

I tried that, and I got no error codes, and completely blank registers.
I tried booting a file I knew would break IPL, and I got no error codes
back from it either.

> Do your systems include remote management cards? The remote management
> cards offer the ability to force a PIM dump through a TC (Transfer of
> Control) command, or to force a reset. They also will display chassis
> codes. 

No, we don't have remote manatement cards, but it sounds like they'd be
very useful for this kind of thing.  I know the LCD panels on the D270
displays these, is this a similiar device?


> Chassis codes, see the PDC_CHASSIS call in your pdc32.pdf
> documentation), are displayed on the 25th line of an HPTERM compatible
> terminal or web console session. They are communicated to the management
> cards over a dedicated hardware interface, and so inserting them into
> your code gives a very low level way to display debug data.

Putting the error on the 25th line is a really good idea, but I can't
see the 25th line because of the terminal control buttons ("Line
Modify", "Modify All", etc).  I can't seem to get rid of them either.
What's the trick?

My suspicion is that the problem with our cross compiling bootloader is
somehow related to byte order of the build system.  Jason did his
originally on HPUX (big), and I'm doing my work on i386 (little).  To
check this I'm going to build the kernel on this sparc I have.

- Alex


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Subject: Re: [parisc-linux] Trying to get HP-UX working
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Alan Cox wrote:
> >  >I can't however get HP/UX to set up an interface 
> >  >
> >  >	194.168.151.23 netmask 255.255.255.224
> > 
> > Are you getting errors or do you just need to know where to make changes? 
> > If it's the former, post the errors and maybe someone can help. If its the 
> > latter, you probably want to edit /etc/rc.config.d/netconf
> 
> Umm webconsole doesnt support cut/paste
> 
> ifconfig lan0 194.168.151.23 netmask 255.255.255.224
> ifconfig: ioctl (SIOCSIFNETMASK): bad value
> 
> Which is kind of a problem

Alan - this is from man ifconfig on HP-UX 10.20:

   Supernets
     A supernet is a collection of smaller networks.  Supernetting is a
     technique of using the netmask to aggregate a collection of smaller
     networks into a supernet. This technique is particularly useful for
     class C networks.  A Class C network can only have 254 hosts.  This
     can be too restrictive for some companies.  For these companies, a
     netmask that only contains a portion of the network part can be
     applied to the hosts in these class C networks to form a supernet.
     This supernet netmask should be applied to those interfaces that
     connect to the supernet using the ifconfig command.  For example, a
     host can configure its interface to connect to a class C supernet,
     192.6, by configuring an IP address of 192.6.1.1 and a netmask of
     255.255.0.0 to its interface.

And this is the example on HP-UX 10.20:

# ifconfig lan0 191.1.1.1 netmask 255.255.255.224
# ifconfig lan0
lan0: flags=862<BROADCAST,NOTRAILERS,RUNNING,MULTICAST>
        inet 191.1.1.1 netmask ffffffe0 broadcast 191.1.1.31
# ifconfig lan0 192.1.1.1 netmask 255.255.255.224
ifconfig: ioctl (SIOCSIFADDR): Can't assign requested address
# ifconfig lan0 192.1.1.1
# ifconfig lan0
lan0: flags=862<BROADCAST,NOTRAILERS,RUNNING,MULTICAST>
        inet 192.1.1.1 netmask ffffff00 broadcast 192.1.1.255

I can only say - 'This is HP :-)'. Their ideas are sometimes strange for
me. :-).

gucio

-- 
gucio -> Piotr Strzyewski
E-mail: gucio@zeus.polsl.gliwice.pl


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Matt Taggart said:
> Does it make sense to go one step further and package them in either HP's 
> SD depot format or alternatively RPM(and provide RPM on HP-UX)? I have some 
> SD experience and could automate the packaging if needed.

Just for reference, the samba 2.0.x source has packaging scripts for
HP-UX.  I figured out how to build HP-UX packages from that example.
(It's pretty easy, although when you get done, building the package
isn't as simple as "rpm -ba" or "rpm --rebuild".)

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(217)698-1694             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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On Wed, 9 Jun 1999, Alan Cox wrote:

> I can't however get HP/UX to set up an interface 
> 
> 	194.168.151.23 netmask 255.255.255.224

You'll need to tell it to allow for subnet zero (RFC1878)

on pre 11.x:

# nettune -s ip_check_subnet_addr 0

on 11.x:

# ndd -set /dev/ip ip_check_subnet_addr 0

--
Fredrik Soderblom, Sr Technical Consultant
Phone: (int) +46-8-4442140, Fax: (int) +46-8-4442447
Internet: fredrik.soderblom@hp.se, URL: http://people.hp.se/frso
Hewlett-Packard Sverige AB, Box 19, S-164 93 Kista, Sweden
PGPprint: AE 74 BF 05 24 C3 18 99  33 9D A6 18 96 03 8A 29


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| 
| No, we don't have remote manatement cards, but it sounds like they'd be
| very useful for this kind of thing.  I know the LCD panels on the D270
| displays these, is this a similiar device?
| 

Yes, the LCD panel and the display on the 25th line of the HPTERM both
display the chassis codes sent by the PDC_CHASSIS call. The remote
management card, however, has the benefits of saving a history of the
chassis codes, as well as providing the remote reset/TOC functions. 

| > cards over a dedicated hardware interface, and so inserting them into
| > your code gives a very low level way to display debug data.
| 
| Putting the error on the 25th line is a really good idea, but I can't
| see the 25th line because of the terminal control buttons ("Line
| Modify", "Modify All", etc).  I can't seem to get rid of them either.
| What's the trick?

For the X11 hpterm client on an HP-style keyboard, hitting the Menu key
will cause the softkey labels to be toggled on/off.  On a PC-style
keyboard, the PrintScreen/SysRq key toggles the labels. If you have a
remote management card, then the chassis codes will automatically toggle
thte softkey labels off. 

KMB

--
+============================================================+
|       Kirk Bresniker    	(916) 785-5677		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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Re:

> > Chassis codes, see the PDC_CHASSIS call in your pdc32.pdf
> > documentation), are displayed on the 25th line of an HPTERM compatible
...
> Putting the error on the 25th line is a really good idea, but I can't
> see the 25th line because of the terminal control buttons ("Line
> Modify", "Modify All", etc).  I can't seem to get rid of them either.
> What's the trick?

On an 800 system console (i.e., a real HP terminal (or compatible/emulator)),
you'd press control-B and then you'd see the PDC status displayed on
line 25.  (you'll also get a command prompt)

To stop seeing it, enter "CO"<return>    (no quotes)

I've never tried it via the remote card mentioned earlier...I presume there's
a mechanism for doing the control-B signal...perhaps pressing control-B?
 
-- 
Stan Sieler                                          sieler@allegro.com
                                     http://www.allegro.com/sieler.html


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Re:

> | No, we don't have remote manatement cards, but it sounds like they'd be
...
> display the chassis codes sent by the PDC_CHASSIS call. The remote
> management card, however, has the benefits of saving a history of the
> chassis codes, as well as providing the remote reset/TOC functions. 

Do you have a part number for this card?
 
> For the X11 hpterm client on an HP-style keyboard, hitting the Menu key
> will cause the softkey labels to be toggled on/off.  On a PC-style
> keyboard, the PrintScreen/SysRq key toggles the labels. If you have a
> remote management card, then the chassis codes will automatically toggle
> thte softkey labels off. 

On some X-Windows servers on PCs, pressing F9 will toggle the "25th" line
display between not showing and showing the user function keys.
Pressing F11 will display the 25th line, showing the
device/modes function keys.  Pressing F12 will display the 25th line
showing the user function keys.   (At least, that's what Reflection X
is doing for me, connection to HP-UX 10.20 running CDE)

-- 
Stan Sieler                                          sieler@allegro.com
                                     http://www.allegro.com/sieler.html


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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: [parisc-linux] booting problems
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Hi,

Re:

> On some X-Windows servers on PCs, pressing F9 will toggle the "25th" line
...

Oops...forgot that I'd customized my keyboard map.

My keyboard map, which tries to add the missing HP keys to a PC keyboard
(running Reflection X) is at:

http://www.allegro.com/sieler/custom.kmp.html

If you use a different X server on a PC (or Mac or Sun or whatever),
you might be interested in a couple of the keycodes that are less
common ... they're listed on the above page.

-- 
Stan Sieler                                          sieler@allegro.com
                                     http://www.allegro.com/sieler.html


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The "HP Remote Management (access port) interface card" is Product # A3342A

-----Original Message-----
From: Stan Sieler <sieler@allegro.com>
To: Kirk Bresniker <kirkb@chrome.rose.hp.com>
Cc: adevries@thepuffingroup.com <adevries@thepuffingroup.com>;
parisc-linux@thepuffingroup.com <parisc-linux@thepuffingroup.com>
Date: Thursday, June 10, 1999 10:11 AM
Subject: Re: [parisc-linux] booting problems


>Re:
>
>> | No, we don't have remote manatement cards, but it sounds like they'd be
>...
>> display the chassis codes sent by the PDC_CHASSIS call. The remote
>> management card, however, has the benefits of saving a history of the
>> chassis codes, as well as providing the remote reset/TOC functions.
>
>Do you have a part number for this card?



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Subject: Re: [parisc-linux] booting problems
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> And now it passes the LIF magic and checksum, and dies.  Here's a
> hand-typed copy of the console:
> 
> "
> Main Menu: Enter command > boot p2
> Interact with IPL (Y, N, or Cancel)?> n
> 
> Booting...
> Network Station Address 001039-037944
> System IP Address 192.168.1.56
> Server IP Address 192.168.1.52
> 
> Boot IO Dependant Code (IODC) revision 2
> 
> 
> SOFT Booted.
> "
> 
> And then absolutely nothing.  The cute little heart on the front panel

It is my guess that ipl has been incorrectly linked (i.e., the relocation
information for text and data are wrong for the LIF image).  Take a
look at the ld script hppaelf.sc in binutils.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] partitioning on HPUX
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Can anyone here describe how HPUX does partitioning?  We're going to
have to look at this at some point for interoperability with HPUX
filesystems.

- Alex


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Subject: [parisc-linux] a question about HPUX's linker
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To help us get ahead, I'm trying to get the kernel to build properly
with HPUX, using HPUX's linker, and gcc.

Why does the final kernel link use --start-group ... --end-group?

What's the equivalent syntax for HPUX's ld?

I'm a bit short on docs in this area...

- Alex


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Alex deVries wrote:
> 
> Looks like we just need to compare a large chunk of the bootable binary
> to figure out what's happening.
> 

For kicks, I tried building the boot structure as it exists in the
kernel, and the kernel itself on HPUX.  I was thinking that maybe there
was a byte order probelm in the boot image generation tools.  I get
pretty much the same thing though, the parisc box just dies without even
entering the IPL code.

It's time to start digging deeper.  If someone else wants look over the
boot code in the kernel, it'd be appreciated.  I'm sure it's a simple
mistake.

The gist of it is this:

- Jason's existing prebuilt bootstrap binary does work
- my copy of his code with some build scripts used to generate a
bootstrap does not



- Alex


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Xref: news.gmane.org gmane.linux.ports.parisc:9504

On Fri, Jun 11, 1999 at 03:10:50AM -0400, Alex deVries wrote:
> 
> To help us get ahead, I'm trying to get the kernel to build properly
> with HPUX, using HPUX's linker, and gcc.
> 
> Why does the final kernel link use --start-group ... --end-group?
> 
> What's the equivalent syntax for HPUX's ld?
> 
> I'm a bit short on docs in this area...

This is something which happened towards the later days of 2.1
development.  It causes GNU ld to scan through the archives indicated
between --start-group and --end-group until no more symbols are resolved.
It is a GNU extension.  I think _in general_ it's not necessary, but
there are a few corner cases where this is needed.  Try taking it out,
tell us what errors you get.

Of course, this is all due to Linux's lame build scripts and they should
be replaced with something better.  which I don't have time to work on, of
course :-)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Alex deVries <adevries@thepuffingroup.com>
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Alex deVries wrote:
> 
> Okay, I've committed a couple of fixes to make the building of the
> bootable image go a bit smoother.  Thanks to John for his patch that
> doesn't require /dev/zero existing to create the sparse file.
> 
> And now it passes the LIF magic and checksum, and dies.  Here's a
> hand-typed copy of the console:
> 
> "
> Main Menu: Enter command > boot p2
> Interact with IPL (Y, N, or Cancel)?> n
> 
> Booting...
> Network Station Address 001039-037944
> System IP Address 192.168.1.56
> Server IP Address 192.168.1.52
> 
> Boot IO Dependant Code (IODC) revision 2
> 
> SOFT Booted.
> "
> 
> And then absolutely nothing.  

Okay, I'm a bit better off now.  I've at least located the problem.  I
copied the IPL straight out of Jason's binary, rebuilt, and it boots. 
The next task is to figure out why the cross compiled version of ipl is
broken, and how to fix it.

An immediate solution in my mind is just to distribute a binary version
of the ipl in the kernel tree...

The IPL can't seem to load and locate the kernel, but we'll get to this
later.

- Alex


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] booting problems
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  In message <3760CF80.887DA4C3@thepuffingroup.com>you write:
  > Okay, I'm a bit better off now.  I've at least located the problem.  I
  > copied the IPL straight out of Jason's binary, rebuilt, and it boots. 
  > The next task is to figure out why the cross compiled version of ipl is
  > broken, and how to fix it.
It could well be an endianness problem in the ELF tools if that's what you
are using to build stuff.

While we did at one point try to squash them, we may have missed some --
over the long haul dos-x-hppa-elf did not turn out to be all that popular
of a host-x-target combination (what a surprise).

BTW, did I mention that probably the first thing your kernel should do is
start mucking around with the leds?  They're an awful primitive, but highly
valuable debugging tool.

jeff



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Xref: news.gmane.org gmane.linux.ports.parisc:9507

> To help us get ahead, I'm trying to get the kernel to build properly
> with HPUX, using HPUX's linker, and gcc.

Ditto. You sorted head.S out ?

> Why does the final kernel link use --start-group ... --end-group?

To do looping resolution of symbols

> What's the equivalent syntax for HPUX's ld?

ld +n

(sort of, but sufficiently sort of)


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Alex deVries writes:
| 
| What's the equivalent syntax for HPUX's ld?
| 
| I'm a bit short on docs in this area...
| 

The 'linker and library guide' is a little bit short on the advanced
stuff unfortunately.

--Marcus


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From: Steven Pritchard <steve@osiris.silug.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] partitioning on HPUX
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Alex deVries said:
> Can anyone here describe how HPUX does partitioning?  We're going to
> have to look at this at some point for interoperability with HPUX
> filesystems.

As I understand it, HP-UX doesn't really do partitioning.  You have a
choice of either using a whole disk for a file system, or you can use
the logical volume manager.  From what I've seen, most of the people
who use LVM also use VxFS (or JFS, a journalling filesystem).  It
would probably be easiest then to just try to support HFS (HP's
version of UFS, I think) using a whole disk.

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(217)698-1694             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] booting problems
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In-Reply-To: <18273.929092119@upchuck.cygnus.com> from "Jeffrey A Law" at Jun 11, 99 03:08:39 am
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>   In message <3760CF80.887DA4C3@thepuffingroup.com>you write:
>   > Okay, I'm a bit better off now.  I've at least located the problem.  I
>   > copied the IPL straight out of Jason's binary, rebuilt, and it boots. 
>   > The next task is to figure out why the cross compiled version of ipl is
>   > broken, and how to fix it.
> It could well be an endianness problem in the ELF tools if that's what you
> are using to build stuff.

While there could be an endianness problem, I think it more likely that
it is how IPL is being linked and extracted into the LIF image.  Jason's
link options, "-R 0 -N", specified a text origin of 0 and data following
the text.  I think the default for ELF is to place the text at 0x1000 and
data at 0x40000000.  The gnu ld equivalent for "-R 0" would appear to
be "-Ttext 0".  I am not sure there is a direct equivalent for "-N".
Maybe, you could use "-Tdata" to set the data location.  Maps might be
useful to sort out what is going on.  Also, the SOM and ELF headers at the
beginning of each binary may differ in size.  When I tried "-Ttext 0",
the size of the ELF header seemed to change in size.  I think there
is info in the header about its size, etc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Are you talking about the logical volume manager (LVM) (similar to
Veritas's)?  That's the disk allocation scheme used most these days.

Rich

----- Original Message -----
From: Alex deVries <adevries@thepuffingroup.com>
To: <parisc-linux@thepuffingroup.com>
Sent: Thursday, June 10, 1999 11:19 PM
Subject: [parisc-linux] partitioning on HPUX


>
> Can anyone here describe how HPUX does partitioning?  We're going to
> have to look at this at some point for interoperability with HPUX
> filesystems.
>
> - Alex
>
> --------------------------------------------------------------------------

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Subject: Re: [parisc-linux] partitioning on HPUX
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Yes -- I agree.  Most who use LVM will be using VxFS, so just onlu
supporting whole disk HFS for now is probably the best.

> As I understand it, HP-UX doesn't really do partitioning.  You have a
> choice of either using a whole disk for a file system, or you can use
> the logical volume manager.  From what I've seen, most of the people
> who use LVM also use VxFS (or JFS, a journalling filesystem).  It
> would probably be easiest then to just try to support HFS (HP's
> version of UFS, I think) using a whole disk.
>
> Steve
> --
> steve@silug.org           | Linux Users of Central Illinois
> (217)698-1694             | Meetings the 4th Tuesday of every month
> Steven Pritchard          | http://www.luci.org/ for more info



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Subject: Re: [parisc-linux] partitioning on HPUX
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> Alex deVries said:
> > Can anyone here describe how HPUX does partitioning?  We're going to
> > have to look at this at some point for interoperability with HPUX
> > filesystems.
> 
> As I understand it, HP-UX doesn't really do partitioning.  You have a
> choice of either using a whole disk for a file system, or you can use
> the logical volume manager.  From what I've seen, most of the people
> who use LVM also use VxFS (or JFS, a journalling filesystem).  It
> would probably be easiest then to just try to support HFS (HP's
> version of UFS, I think) using a whole disk.

On hpux 9.x and later (?), partitioning was supported using Software
Disk Striping (SDS).  See sdsadmin(1M).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: [parisc-linux] a broken test kernel...
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I've uploaded a test binary kernel so others can have a look at the
broken IPL.  It's at:

ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/Image-19990611-1

This is known not to work, so there's no point in trying it unless you
want to throw it on a box to see the chassis codes, which I'm not yet
able to.

- Alex


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John David Anglin wrote:
> 
> >   In message <3760CF80.887DA4C3@thepuffingroup.com>you write:
> >   > Okay, I'm a bit better off now.  I've at least located the problem.  I
> >   > copied the IPL straight out of Jason's binary, rebuilt, and it boots.
> >   > The next task is to figure out why the cross compiled version of ipl is
> >   > broken, and how to fix it.
> > It could well be an endianness problem in the ELF tools if that's what you
> > are using to build stuff.
> 
> While there could be an endianness problem, I think it more likely that
> it is how IPL is being linked and extracted into the LIF image.  

I think you're right.  I'm sure now that the byte order isn't a problem,
because my header and Jason's IPL work fine.

> Jason's
> link options, "-R 0 -N", specified a text origin of 0 and data following
> the text.  I think the default for ELF is to place the text at 0x1000 and
> data at 0x40000000.  The gnu ld equivalent for "-R 0" would appear to
> be "-Ttext 0".  I am not sure there is a direct equivalent for "-N".
> Maybe, you could use "-Tdata" to set the data location.  Maps might be
> useful to sort out what is going on.  

Definitely.  This should be the next step in sorting this out.

> Also, the SOM and ELF headers at the
> beginning of each binary may differ in size.  When I tried "-Ttext 0",
> the size of the ELF header seemed to change in size.  I think there
> is info in the header about its size, etc.

I was thinking that object formats wouldn't really matter in the end; in
the end we're doing straight binary with no loading information.

- Alex


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] partitioning on HPUX
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Alex deVries wrote:
> 
> Can anyone here describe how HPUX does partitioning?  We're going to
> have to look at this at some point for interoperability with HPUX
> filesystems.

Besides LVM (with JxFS), HP-UX also supports "Hard Partitioning".
The partition information is encoded in both the kernel and /etc/disktab.
As the note in /etc/disktab says, it's use is strongly discouraged.
The driver behavior is similar to "Soft Partitioning" used on PC's
except that the information is hard coded in an OS table instead
of reading it off reserved sectors on the disk.

Having once supported HP-UX SCSI disk drivers, I can only second the
reccomendation already made to only support "whole disk" file systems.
The whole hard partioning thing was a mess. Eventually, if someone
really needs to partition a disk, some support for LVM could be added
(and hopefully with a better user interface).

grant

ps. "man -k sds" on my 10.20 box reports "sds: nothing appropriate".
I tried it on several in-house timeshare machines and got the same result.
I think this was pre-LVM mirroring/striping support. LVM was pushed
heavily around the 10.X introduction 3 to 4 years ago to replace
the older mirroring/striping. 


> - Alex
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Enterprise Systems Technology Lab
+1.408.447.7253


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Grant Grundler wrote:

> Having once supported HP-UX SCSI disk drivers, I can only second the
> reccomendation already made to only support "whole disk" file systems.
> The whole hard partioning thing was a mess. Eventually, if someone
> really needs to partition a disk, some support for LVM could be added
> (and hopefully with a better user interface).

Most Linux distributions really expect some sort of partitioning, so
it's easier to just inherit an existing one. 

Usually there's a native partitioning format to follow, but by not
having one we're forced to choose one.  The obvious one is DOS, because
it's been done many times over.  I'd be happier doing something a little
more sane like SGI though.

Oh, and at some point we'll do LVM, but that'll mean merging it in with
the existing Linux LVM tools.

- Alex


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Re:
 
> Yes -- I agree.  Most who use LVM will be using VxFS, so just onlu
> supporting whole disk HFS for now is probably the best.

Is that supported by surveys/counts?  
On HP-UX, we use LVM with HFS, but never VxFS,
because the partition changing tools are free with LVM but are  
separate charged products for VxFS.

Additionally, check the bug reports...VxFS is fraught with problems
compare to HFS.  So, at this point, with problems and cost, we're 
staying on HFS.   The majority of customers we deal with are also
on HFS, for the same reasons.
 
> > As I understand it, HP-UX doesn't really do partitioning.  You have a

It used to, but that was dropped (as of 11.0?).

> > would probably be easiest then to just try to support HFS (HP's
> > version of UFS, I think) using a whole disk.

-- 
Stan Sieler                                          sieler@allegro.com
                                     http://www.allegro.com/sieler.html


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From: Kirk Bresniker <kirkb@chrome.rose.hp.com>
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Subject: Re: [parisc-linux] booting problems
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Here's the offending code segment:

# adb Image-19990611-1

0x2000,10?i
2000:           LDO             -4(r31),r31
                LDIL            L%0x40008000,r1
                BE              1792(sr4,r1)      ; 0x40008000 + 1792 = 0x40008700 
                                                  ; this is the evil branch past
                                                  ; the end of memory identified
						  ; in the PIM dump
                OR              r31,r0,r2
                LDO             -4(r31),r31
                LDIL            L%0x2000,r1
                BE              228(sr4,r1)
                OR              r31,r0,r2
                LDO             -4(r31),r31
                LDIL            L%0x2000,r1
                BE              316(sr4,r1)
                OR              r31,r0,r2
                LDO             -4(r31),r31
                LDIL            L%0x2000,r1
                BE,N            1528(sr4,r1)
                LDO             -4(r31),r31
$q

KMB
--
+============================================================+
|       Kirk Bresniker    	(916) 785-5677		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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From: Jason Eckhardt <jason@equator.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] booting problems
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> I think you're right.  I'm sure now that the byte order isn't a problem,
> because my header and Jason's IPL work fine.
>
> > Jason's
> > link options, "-R 0 -N", specified a text origin of 0 and data following
> > the text.  I think the default for ELF is to place the text at 0x1000 and
> > data at 0x40000000.  The gnu ld equivalent for "-R 0" would appear to
> > be "-Ttext 0".  I am not sure there is a direct equivalent for "-N".
> > Maybe, you could use "-Tdata" to set the data location.  Maps might be
> > useful to sort out what is going on.  
>
> Definitely.  This should be the next step in sorting this out.
>

  The bootstrap definately will not work with default data at 0x40000000.
  The HPMC that is occurring is undoubtedly because the data section is there.


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Jason Eckhardt wrote:
> 
> > I think you're right.  I'm sure now that the byte order isn't a problem,
> > because my header and Jason's IPL work fine.
> >
> > > Jason's
> > > link options, "-R 0 -N", specified a text origin of 0 and data following
> > > the text.  I think the default for ELF is to place the text at 0x1000 and
> > > data at 0x40000000.  The gnu ld equivalent for "-R 0" would appear to
> > > be "-Ttext 0".  I am not sure there is a direct equivalent for "-N".
> > > Maybe, you could use "-Tdata" to set the data location.  Maps might be
> > > useful to sort out what is going on.
> >
> > Definitely.  This should be the next step in sorting this out.
> >
> 
>   The bootstrap definately will not work with default data at 0x40000000.
>   The HPMC that is occurring is undoubtedly because the data section is there.

Okay, this is the same conclusion I came to.  Where should I put both
the data and text sengments?

- Alex


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] partitioning on HPUX
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> Most Linux distributions really expect some sort of partitioning, so
> it's easier to just inherit an existing one. 

We get all the existing ones for free.

> Oh, and at some point we'll do LVM, but that'll mean merging it in with
> the existing Linux LVM tools.

It depends how smart the HP LVM is and if its documented enough. LVM is
just a variant on the raid striping problem so its not a lot of code to
support until you want to do clever stuff like live resizing


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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> Okay, this is the same conclusion I came to.  Where should I put both
> the data and text sengments?

Try this for the ld options: -Ttext 800 -N -s.

This links all sections in low virtual memory.  VMA and LMA for the
.text section are 0x800 (the size of the LIF header, 2048).  The file
offset to the .text section is 0xa0 bytes when -N is specified.  The
size of the LIF header should be 0x800 - 0xa0 = 0x760 (1888 bytes).
The -s option strips the symbols.

The result of the link can be inspected with the command:

hppa-parisc-objdump --headers ipl

Hope this works.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] booting problems
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> 
> > Okay, this is the same conclusion I came to.  Where should I put both
> > the data and text sengments?
> 
> Try this for the ld options: -Ttext 800 -N -s.
> 
> This links all sections in low virtual memory.  VMA and LMA for the
> .text section are 0x800 (the size of the LIF header, 2048).  The file
> offset to the .text section is 0xa0 bytes when -N is specified.  The
> size of the LIF header should be 0x800 - 0xa0 = 0x760 (1888 bytes).

This last part may be unclear.  What you need to arrange is that
the offset to the .text section in the binary image is 0x800 bytes.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] booting problems
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> 
> > Okay, this is the same conclusion I came to.  Where should I put both
> > the data and text sengments?
> 
> Try this for the ld options: -Ttext 800 -N -s.

On further inspection of the generated ipl file, it appears that a
more complex script is needed to extract the section data.  Here
is the header dump of IPL created with the above link options:

ipl.N800:     file format elf32-hppa

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         00001b90  00000800  00000800  000000a0  2**4
                  CONTENTS, ALLOC, LOAD, CODE
  1 .data         000064a8  00003000  00003000  000028a0  2**12
                  CONTENTS, ALLOC, LOAD, DATA
  2 .bss          0000115c  0000f950  0000f950  00008d48  2**3
                  ALLOC
  3 .PARISC.unwind 000000c0  00010aac  00010aac  00009a50  2**0
                  CONTENTS
  4 .PARISC.symext 00000000  00010b6c  00010b6c  00009b10  2**2
                  CONTENTS
  5 $CODE$        00000d08  00010ba0  00010ba0  00008d48  2**3
                  CONTENTS, ALLOC, LOAD, CODE

The file offset for the .data section is ok.  However, the .bss
section must be created in the LIF image.  The $CODE$ section
is next in the file and it must be loaded at 10ba0 in the LIF
image.  Finally, the .PARISC.unwind and .PARISC.symext must be
loaded to the correct locations in the LIF image.

It might be possible with a ld script to better arrange the sections
and improve their placement in the linked file.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] booting problems
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  In message <199906120323.XAA29685@hiauly1.hia.nrc.ca>you write:
  > image.  Finally, the .PARISC.unwind and .PARISC.symext must be
  > loaded to the correct locations in the LIF image.
You can throw away the unwind & symext sections.  While one day you might want
the unwinders in your lif image, you'll never want the symext.

In the ELF tools, you shouldn't never end up with anything in $CODE$.  If
you do, that's a bug in either the compiler or the assembler.  It should
have mapped $CODE$ into .text.

jeff



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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: [parisc-linux] booting problems
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Jeffrey A Law wrote:
> 
>   In message <199906120323.XAA29685@hiauly1.hia.nrc.ca>you write:
>   > image.  Finally, the .PARISC.unwind and .PARISC.symext must be
>   > loaded to the correct locations in the LIF image.
> You can throw away the unwind & symext sections.  While one day you might want
> the unwinders in your lif image, you'll never want the symext.
> 
> In the ELF tools, you shouldn't never end up with anything in $CODE$.  If
> you do, that's a bug in either the compiler or the assembler.  It should
> have mapped $CODE$ into .text.

Okay.  So this means there's a problem with the GNU ld code. Jeff, do
you know approximately where within the ld code we should be looking to
fix this?

I confess I'm starting to get a little lost with the segment placings. 
Everything I'm trying is producing nothing at all.  The latest I've
tried is linking with:

parisc-linux-ld -m hppaelf -Ttext 0x1000 -N -s \
     ipl_s.o ipl_c.o rom_interface.o ../../../lib/milli.o -o ipl

You can inspect this kernel, it's at
ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/Image-19990612-1

The IPL starts at 0x1000.

It would be very helpful to get a PIM dump as Kirk had provided earlier.

- Alex


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Subject: Re: [parisc-linux] booting problems
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        parisc-linux@thepuffingroup.com
To: Alex deVries <adevries@thepuffingroup.com>
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  In message <3761EBB0.26A1931C@thepuffingroup.com>you write:
  > > In the ELF tools, you shouldn't never end up with anything in $CODE$.  If
  > > you do, that's a bug in either the compiler or the assembler.  It should
  > > have mapped $CODE$ into .text.
  > 
  > Okay.  So this means there's a problem with the GNU ld code. Jeff, do
  > you know approximately where within the ld code we should be looking to
  > fix this?
No, it's in either gas or gcc, not gld.

To find it you first need to find the offending .o file.  Then we'll look at
the .s it's built from, then possibly walk backwards to the compiler itself
depending on what we find.

To find the offending .o file with a $CODE$ use something like

objdump -h *.o ../../../lib/milli.o > /tmp/BLAH

Then search for $CODE$ in the resulting /tmp/BLAH.  We'll work backwards from
what you find.

  > It would be very helpful to get a PIM dump as Kirk had provided earlier.
Look at trap.c in the Utah code.   It had some of this kind of stuff.  Though
it assumes that you can run long enough to get your own trap handlers
installed.

jeff



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  In message <3761F335.ADA76678@thepuffingroup.com>you write:
  > This is a multi-part message in MIME format.
  > > Then search for $CODE$ in the resulting /tmp/BLAH.  We'll work backwards 
  > from
  > > what you find.
  > 
  > The offending files are:
  > 
  > ipl_c.o:     file format elf32-hppa
[ ... ]

  >   4 $CODE$        00000210  00000000  00000000  000002b0  2**3
  >                   CONTENTS, ALLOC, LOAD, RELOC, CODE
  >   5 $CODE$        000001f8  00000000  00000000  000004c0  2**3
  >                   CONTENTS, ALLOC, LOAD, RELOC, CODE
  >   6 $CODE$        000003d8  00000000  00000000  000006b8  2**3
  >                   CONTENTS, ALLOC, LOAD, RELOC, CODE
OK.  This is actually enough to identify the problem.

This is one of those stupid problems that will go away when we revamp the tools
to do ELF in a more traditional fashion -- in particular dumping all the dumb
HP names for spaces/subspaces and sticking with standard names.

The problem is in the assembler's handling of .nsubspa.  It is not honoring the
$CODE$ -> .text translation for that case.

in gas/tc-hppa.c::pa_subspace there should be code like this:

     /* If this is an existing subspace, then we want to use the
         segment already associated with the subspace.

         FIXME NOW!  ELF BFD doesn't appear to be ready to deal with
         lots of sections.  It might be a problem in the PA ELF
         code, I do not know yet.  For now avoid creating anything
         but the "standard" sections for ELF.  */
      if (create_new)
        section = subseg_force_new (ss_name, 0);
      else if (ssd)
        section = ssd->ssd_seg;
      else if (alias)
        section = subseg_new (alias, 0);
      else if (!alias && USE_ALIASES)
        {
          as_warn (_("Ignoring subspace decl due to ELF BFD bugs."));
          demand_empty_rest_of_line ();
          return;
        }
      else
        section = subseg_new (ss_name, 0);


You'll note the FIXME NOW!.  It's about 5 years old :(  Though it will be
zapped as we drop the $CODE$ nonsense.


Anyway I think you may be able to fix this bug by changing the subseg_force_new
call to look something like:

  subseg_force_new (alias ? alias : ss_name, 0);


Though I'm a little confused.  I thought y'all were dropping the existing ELF
stuff -- I would strongly recommend it.  We're not even planning to keep the
existing elf32-hppa stuff building in gas/binutils as we work on the rewrite.
You're working with a totally dead and unsupported toolchain at this point.

jeff







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Jeffrey A Law wrote:
> 

<snip>

Okay, I can make that change, unless someone beats me to it.

> 
> Though I'm a little confused.  I thought y'all were dropping the existing ELF
> stuff -- I would strongly recommend it.  We're not even planning to keep the
> existing elf32-hppa stuff building in gas/binutils as we work on the rewrite.
> You're working with a totally dead and unsupported toolchain at this point.

Let me clear this up.

Yes, we are absolutely dropping any use of the current broken
instantiation of elf32-hppa.

However, there's this time gap between now and when we actually have the
new toolchain from Cygnus.  During this time, the only thing that we
expect to work on is the kernel and bootloader.  Having just those two
components building with the current gcc and linker are important.

When Cygnus delivers a new toolchain, we'll go for that.

If we don't do it this way, the only toolchain we'll have is hosted on
HPUX, which I want to avoid if I possibly can.  The
fix-build-boot-restart cycle is muuuuch faster if you can cross compile
and netboot, particularly for those people who only have one HPUX
machine and slow connectivity to the HPUX box that HP has online for us.

Does that make sense?

- Alex


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Subject: Re: [parisc-linux] booting problems
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> Jeffrey A Law wrote:
> > 
> 
> <snip>
> 
> Okay, I can make that change, unless someone beats me to it.
> 
> > 
> > Though I'm a little confused.  I thought y'all were dropping the existing ELF
> > stuff -- I would strongly recommend it.  We're not even planning to keep the
> > existing elf32-hppa stuff building in gas/binutils as we work on the rewrite.
> > You're working with a totally dead and unsupported toolchain at this point.
> 
> Let me clear this up.
> 
> Yes, we are absolutely dropping any use of the current broken
> instantiation of elf32-hppa.

As I see it, it is a question of priorities.  The existing elf32-hppa
tools are the only ones which currently allow cross development
due to the lack of gnu linker supporting SOM.  If a SOM linker were
available, cross development could be done using the more developed
and tested SOM tools.  However, according to the comments in binutils/bfd,
the bfd architecture is incapable of performing all types of SOM
relocations.  A SOM linker also needs to be stream based.  Thus,
it appears difficult (impossible?) to build a SOM linker using the
bfd architecture.  On the other hand, the elf32-hppa tools have serious
deficiencies and are about to be completely rewritten.  Might it not be
better to develop a SOM linker rather than rewrite the elf stuff?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> relocations.  A SOM linker also needs to be stream based.  Thus,
> it appears difficult (impossible?) to build a SOM linker using the
> bfd architecture.  On the other hand, the elf32-hppa tools have serious
> deficiencies and are about to be completely rewritten.  Might it not be
> better to develop a SOM linker rather than rewrite the elf stuff?

Writing a linker, especialyl for something complex like SOM is not trivial
in the slightest.

Alan


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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
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  In message <E10sse6-0004NC-00@the-village.bc.nu>you write:
  > Writing a linker, especialyl for something complex like SOM is not trivial
  > in the slightest.
  > 
One hell of an understatement.  Time is better spent _rewriting_ the ELF tools
to work in a reasoanble manner.

I'm not talking about tweaking the ELF tools, I'm talking about starting from
scratch.  The elf32-hppa code was the first elf backend that tried to deal
with linker generated code.

We've learned a lot since that code was written -- both about the generic
issues behind linker generated code and PA specific issues.  Enough to 
realize that what we tried to do in elf32-hppa.c was horribly bad and
needs to be scrapped and replaced.


jeff


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Subject: Re: [parisc-linux] booting problems
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On Sat, Jun 12, 1999 at 07:36:44PM +0100, Alan Cox wrote:
> > relocations.  A SOM linker also needs to be stream based.  Thus,
> > it appears difficult (impossible?) to build a SOM linker using the
> > bfd architecture.  On the other hand, the elf32-hppa tools have serious
> > deficiencies and are about to be completely rewritten.  Might it not be
> > better to develop a SOM linker rather than rewrite the elf stuff?
> 
> Writing a linker, especialyl for something complex like SOM is not trivial
> in the slightest.

Yes, if you really want to support SOM properly and follow the spec.
It probably isn't if you want to just deal with what actually exists in
the world.  If you look at page 6-125 of the `32-bit PA-RISC Run-Time
Architecture Document 11.0 Version 1.0', it says that all conforming
executable SOM files must have the `exec auxiliary header (also known as
the HP-UX header with Hewlett-Packard)'.

So in the binfmt_som loader I take this opportunity to ignore the
wonderfully flexible and expressive structure that is contained in the SOM
file format and just map the text, data and bss segments from the file.
I imagine that a SOM linker which did just enough to get a kernel up
and running would not be too hard to write.  On the other hand, I can
think of a dozen more interesting and productive things to do.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] booting problems
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  In message <37624146.A7B5F0FE@thepuffingroup.com>you write:
  > Jeffrey A Law wrote:
  > > 
  > 
  > <snip>
  > 
  > Okay, I can make that change, unless someone beats me to it.
Let me know if it helps.  That change is just an educated guess :-)


  > However, there's this time gap between now and when we actually have the
  > new toolchain from Cygnus.  During this time, the only thing that we
  > expect to work on is the kernel and bootloader.  Having just those two
  > components building with the current gcc and linker are important.
OK.  But note Cygnus is _NOT_ currently scheduled or contracted to provide a
32bit ELF toolchain.  Cygnus will be providing a 64bit ELF toolchain which
folks can use to derive much of the 32bit toolchain.
  > 
  > If we don't do it this way, the only toolchain we'll have is hosted on
  > HPUX, which I want to avoid if I possibly can.  The
  > fix-build-boot-restart cycle is muuuuch faster if you can cross compile
  > and netboot, particularly for those people who only have one HPUX
  > machine and slow connectivity to the HPUX box that HP has online for us.
I understand.  I'm still skeptical that you're going to end up burning
more time fighting those lame elf tools than you would by building with
SOM tools.

Of course, if you had two HP machines, then this is a non-issue :-)

jeff


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  In message <19990612213649.Y31472@mencheca.ch.genedata.com>you write:
  > Yes, if you really want to support SOM properly and follow the spec.
  > It probably isn't if you want to just deal with what actually exists in
  > the world.  If you look at page 6-125 of the `32-bit PA-RISC Run-Time
  > Architecture Document 11.0 Version 1.0', it says that all conforming
  > executable SOM files must have the `exec auxiliary header (also known as
  > the HP-UX header with Hewlett-Packard)'.
The headers are the easy part.  Really.  It's the relocations that are such
a bear.


  > So in the binfmt_som loader I take this opportunity to ignore the
  > wonderfully flexible and expressive structure that is contained in the SOM
  > file format and just map the text, data and bss segments from the file.
  > I imagine that a SOM linker which did just enough to get a kernel up
  > and running would not be too hard to write.  On the other hand, I can
  > think of a dozen more interesting and productive things to do.
If you look at the SOM exec aux header, it effectively gives you the old
traditional text, data, bss.   That's its purpose in life -- to glom together
all the readonly loadable things into ".text", read-write initialized into
".data" and everything else into .bss.   The ELF folks in the crowd will
recognize this as the program vs object viewpoints of an ELF file.


While "just a kernel linker" does simplify things (no need for shared libraries
and the shitloads of stubs they involve), you've still got a large, nontrivial
project on your hands.  It would *still* be easier to sit down and rewrite the
elf32 tools than to do a kernel-only SOM linker.

If you're really sadistic, look at the way calls relocs are handled.



jeff


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] It's finally sunk in: bye bye elf32
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Over the last week I've really spent a lot of time trying to get the
kernel to build and boot when crosss compiled from i386. This meant
using the existing broken elf32 implementation.

This was only to be a temporary solution until at some point we got a
proper ELF64 implementation from Cygnus, which we'd then fold back into
ELF32.  That's a long way off though, and it's important to move forward
on this port.

It's quite possible that we could have fixed up the broken elf32
implementation enough to build our kernel and bootloader, but the worry
is that there's a risk that it's going to be a huge pain.

So, I'm going to do an about face and change my mind completely about
the som/elf32 situation.  So far, Matt Wilcox, Alan Cox, Jef Law and
Chris Beard all seem to agree.  I'm just a bit slow in jumping on board.

There's two reasons I'm changing my mind somewhat suddenly:

- I had really bad nightmares last night about having to fix the broken
elf32 implementation, which I really don't understand, which would be
dumped later down the road, and for which there's a supported
implementation on HPUX.

- I spent the entire day building a deck in the sun; it made me come to
my senses and realize that I'd been arguing some of this because it's
the assumption I'd done my existing work on. It's sometimes difficult to
tear yourself away from the details of the problem and look at the
bigger picture.

So, I'm going to spend some time making the kernel build on HPUX.  I
know there's quite a few changes to make.  But I'll keep the elf
specific work, it'll help later on.

- Alex




- Alex


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] binfmt_som
Date: Sun, 13 Jun 1999 03:52:54 +0200
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I plunged further into the binfmt_* files today and have a fair idea what needs to be done next.  One passage is slightly troubling me (page 6-126 of the
runtime arch document),

``exec_dsize
This field specifies the size in bytes of the initialised data (does
not have to be a multiple of 4k).  The actual size of the data section
in the file must be a multiple of 4k and can be padded with zeroes to
make it a multiple of 4k.''

Does this mean in the case where exec_dsize is not a multiple of 4k, it
MUST be padded with zeroes, or merely might be padded with zeroes?  If the
former, I don't need to zero them myself in the loader which would be nice.

Also, where does the bss section start?  Is it immediately after the
initialised data or at the next page boundary after it?

binfmt_som is going to be the cleanest binfmt in the kernel when I'm
finished with it :-)  [and then I'm going to clean up the others.]

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] binfmt_som
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  In message <19990613035254.D31472@mencheca.ch.genedata.com>you write:
  > ``exec_dsize
  > This field specifies the size in bytes of the initialised data (does
  > not have to be a multiple of 4k).  The actual size of the data section
  > in the file must be a multiple of 4k and can be padded with zeroes to
  > make it a multiple of 4k.''
  > 
  > Does this mean in the case where exec_dsize is not a multiple of 4k, it
  > MUST be padded with zeroes, or merely might be padded with zeroes?  If the
  > former, I don't need to zero them myself in the loader which would be nice.
Strictly reading the size in the file is guaranteed to be a multiple of 4k,
but you can't necessarily depend on the pad being zero filled.

However, HP's linker always zero pads.

  > Also, where does the bss section start?  Is it immediately after the
  > initialised data or at the next page boundary after it?
It beings immediately after the initialized data.  Note that HP's linker will
decrease the size of the bss space by the amount of pad needed to fill out the
data space's size to a multiple of 4k.  This saves a little bit of memory in
the resident image.  Note this is only possible when the pad is zero filled.

To the best of my knowledge this behavior is not documented by HP anywhere.  It
is documented in bfd/som.c, as are many of SOM's wonderful quirks.  Search for
exec_header.

In case you're wondering why BFD has to know about this -- consider strip and
objcopy.  If you muck up an executable with those programs BFD has to be
able to recreate the exec header based on the sections that will exist in the
final output file.

jeff


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Subject: Re: [parisc-linux] It's finally sunk in: bye bye elf32
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In-Reply-To: <3762F4BE.C09B5CA9@thepuffingroup.com> from "Alex deVries" at Jun 12, 99 08:01:02 pm
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Xref: news.gmane.org gmane.linux.ports.parisc:9540

> So, I'm going to spend some time making the kernel build on HPUX.  I
> know there's quite a few changes to make.  But I'll keep the elf
> specific work, it'll help later on.

The discussion about the merits/limitations of SOM and ELF over the
last couple of days has been extremely useful.  As Alex says, there is
a lot of work to be done on the kernel before it is usable.  However,
in the long run, the port must be a complete self contained system.
That is, it must support a linker capable of generating executables
and the kernel.

The concensis is that writing a SOM linker is a major project.  Another
option might be to approach HP and see if they would consider putting
the source code for their SOM linker into the public domain, or possibly
supplying a static binary version of the linker that could be distributed.
I would suggest that Alex discuss the matter with his contact at HP.

If this does not work out, then we must fall back to ELF32 and devote
enough effort to get elf32-hppa working at an acceptable level.  Jeff
Law is the world expert on the hp version of these tools.  However, Jeff
is very busy with gcc.  Any volunteers?  Obviously, this needs to be
coordinated with the maintainers of binutils and Cygnus.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] booting problems
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In-Reply-To: <22030.929169143@upchuck.cygnus.com> from "Jeffrey A Law" at Jun 12, 99 00:32:23 am
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Xref: news.gmane.org gmane.linux.ports.parisc:9541

> Anyway I think you may be able to fix this bug by changing the subseg_force_new
> call to look something like:
> 
>   subseg_force_new (alias ? alias : ss_name, 0);

Just to through a little "gas" on the discussion, I installed Jeff's
patch and rebuilt.  The patch sucessfully merges $CODE$ into .text.

Here are the kernel headers:

vmlinux:     file format elf32-hppa

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         000759b0  00008000  00008000  00001000  2**4
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  1 .data         0000f260  0007d9b0  0007d9b0  000769b0  2**3
                  CONTENTS, ALLOC, LOAD, DATA
  2 .bss          0001ac6c  0008e000  0008e000  00086000  2**4
                  ALLOC
  3 .PARISC.unwind 00006be0  000a8c6c  000a8c6c  00086000  2**0
                  CONTENTS
  4 .PARISC.symext 00000000  000af84c  000af84c  0008cbe0  2**2
                  CONTENTS

Here are the headers for ipl linked with "-Ttext800 -N":

ipl:     file format elf32-hppa

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         000028a0  00000800  00000800  00000080  2**4
                  CONTENTS, ALLOC, LOAD, CODE
  1 .data         000064a8  00004000  00004000  00003880  2**12
                  CONTENTS, ALLOC, LOAD, DATA
  2 .bss          0000115c  00010950  00010950  00009d28  2**3
                  ALLOC
  3 .PARISC.unwind 000000c0  00011aac  00011aac  00009d28  2**0
                  CONTENTS
  4 .PARISC.symext 00000000  00011b6c  00011b6c  00009de8  2**2
                  CONTENTS

I think that we are real close to being able to generate a bootable
kernel with the existing elf32 tools.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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John David Anglin wrote:
>
> 
> I think that we are real close to being able to generate a bootable
> kernel with the existing elf32 tools.
>

Okay, I'll give this one more try with my current setup and see what
happens...

In the meantime, I've started private talks with HP about the
possibility of releasing an HPUX ld cross compiler hosted on i386-linux.

- alex


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Lasi/Dino/Interrupts
Date: Mon, 14 Jun 1999 01:30:46 +0100 (BST)
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Xref: news.gmane.org gmane.linux.ports.parisc:9543

I've started putting together some basic code to drive LASI and DINO.
Some things aren't terribly clear however

1.	How much of LASI/DINO/PCI has been initialised by the boot firmware.
	Has it performed the PCI device configurations and assigned bus
	spaces for the devices ?

	Will the LASI devices be in reset state except for the console port
	(Im assuming lasi is driving the firmware console ?)

2.	It isnt totally clear from the docs what the input clock of the
	16550A macrocell is. I need that for the serial.c code obviously..

3.	The parallel port slave reset is at 102000 in the register map. The
	docs elsewhere say the parallel port DMA registers can be reset
	by writing to offset 10300 - should this be 102000 or 103000 - ie
	is the dma reset for the parallel seperate , and is it at the
	obvious place or really is one of the 8bit bus (flash) addresses

4.	Do I need to set bits in the I/O reset register back to 1 after
	a reset in order to bring them back active or is that automatic.

I have the irq handlers for LASI and DINO done. These will map the 
multiplexed irqs from these devices onto the linux "one irq space" model
presented to drivers.

Alan


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From: Jeffrey A Law <law@cygnus.com>
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Subject: Re: [parisc-linux] It's finally sunk in: bye bye elf32
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  In message <199906131702.NAA28988@hiauly1.hia.nrc.ca>you write:
  > The concensis is that writing a SOM linker is a major project.  Another
  > option might be to approach HP and see if they would consider putting
  > the source code for their SOM linker into the public domain, or possibly
  > supplying a static binary version of the linker that could be distributed.
  > I would suggest that Alex discuss the matter with his contact at HP.
It's an option.  Probably not a bad one.  Though the HP linker's idea of
portability is marginal at best, so getting it running on another system is
no trivial effort.  But if HP is willing to do it and give y'all binaries,
then go for it.


  > If this does not work out, then we must fall back to ELF32 and devote
  > enough effort to get elf32-hppa working at an acceptable level.  Jeff
  > Law is the world expert on the hp version of these tools.  However, Jeff
  > is very busy with gcc.  Any volunteers?  Obviously, this needs to be
  > coordinated with the maintainers of binutils and Cygnus.
I would strongly recommend against any serious work at trying to make the
existing elf32-hppa.c work -- start over from scratch with the spec at your
side.  There is almost no salvageable code in elf32-hppa.c.

If someone has an interest in working on a rewrite I would strongly encourage
them to contact me so that we can work closely together and avoid useless
duplication of work since I'm working on elf64-hppa.c right now (which should
be able to share a bunch of code with elf32-hppa.c)

jeff


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Subject: Re: [parisc-linux] It's finally sunk in: bye bye elf32
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Xref: news.gmane.org gmane.linux.ports.parisc:9545

On Sun, Jun 13, 1999 at 01:02:58PM -0400, John David Anglin wrote:
> > So, I'm going to spend some time making the kernel build on HPUX.  I
> > know there's quite a few changes to make.  But I'll keep the elf
> > specific work, it'll help later on.
> 
> The discussion about the merits/limitations of SOM and ELF over the
> last couple of days has been extremely useful.  As Alex says, there is
> a lot of work to be done on the kernel before it is usable.  However,
> in the long run, the port must be a complete self contained system.
> That is, it must support a linker capable of generating executables
> and the kernel.

[...]

> If this does not work out, then we must fall back to ELF32 and devote
> enough effort to get elf32-hppa working at an acceptable level.

The long term goal is to support:

 * HP-UX binaries
 * parisc/elf32 Linux binaries
 * parisc/elf64 Linux binaries (on parisc 2.0 hardware)

The binfmt_som kernel support is necessary in both the short term (to
get a working shell for free) and long term which is why I decided to
do it first.  Once the kernel is built, we can then run the HPUX linker
on it, but we have a `small' bootstrap problem.  As Jeff says though,
it's worth throwing away the whole of parisc/elf32 and starting again
from scratch.  We were just hoping to not have to do that for a while..

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Dino PCI and I/O spaces
Date: Mon, 14 Jun 1999 16:15:08 +0100
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I've put together draft code to handle the Dino PCI configuration space
accesses. There seems to be no way to do byte sized config accesses, do
I just read 32bits mask and write 32bits ?

The I/O space documentation also doesn't cover how to force sizes for
inb/inw/inl.

Im guessing you simply do that sized memory access to the 0x6C offset.

I'm mapping the notional I/O space 0x0000->0xFFFF as PCI space I/O. Since
HP boxes have I/O space high no MMIO can be confused for PCI this way.
If we have multiple Dino's in any box I need to put my thinking hat back on.

Also as a btw: PCI I/O port access will suck rocks on HP because we have
to grab a lock since it is a two stage operation. That may mean we want
to write smart copy/csum/io and ins* functions for PCI block I/O.

Alan


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Dino PCI and I/O spaces
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Xref: news.gmane.org gmane.linux.ports.parisc:9547

On Mon, Jun 14, 1999 at 04:15:08PM +0100, Alan Cox wrote:
> Also as a btw: PCI I/O port access will suck rocks on HP because we have
> to grab a lock since it is a two stage operation. That may mean we want
> to write smart copy/csum/io and ins* functions for PCI block I/O.

Do we only have to grab a lock on SMP machines, or can we sleep between
the two accesses?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Dino PCI and I/O spaces
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In-Reply-To: <19990614172117.K31472@mencheca.ch.genedata.com> from "Matthew Wilcox" at Jun 14, 99 05:21:17 pm
Xref: news.gmane.org gmane.linux.ports.parisc:9548

> On Mon, Jun 14, 1999 at 04:15:08PM +0100, Alan Cox wrote:
> > Also as a btw: PCI I/O port access will suck rocks on HP because we have
> > to grab a lock since it is a two stage operation. That may mean we want
> > to write smart copy/csum/io and ins* functions for PCI block I/O.
> 
> Do we only have to grab a lock on SMP machines, or can we sleep between
> the two accesses?

On a uniprocessor we might take an interrupt between the two cycles. So we
have to suffer anyway


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:9549

On Mon, Jun 14, 1999 at 04:21:29PM +0100, Alan Cox wrote:
> > On Mon, Jun 14, 1999 at 04:15:08PM +0100, Alan Cox wrote:
> > > Also as a btw: PCI I/O port access will suck rocks on HP because we have
> > > to grab a lock since it is a two stage operation. That may mean we want
> > > to write smart copy/csum/io and ins* functions for PCI block I/O.
> > 
> > Do we only have to grab a lock on SMP machines, or can we sleep between
> > the two accesses?
> 
> On a uniprocessor we might take an interrupt between the two cycles. So we
> have to suffer anyway

Then we ought to disable interrupts, surely?  Otherwise we can have:

Grab lock
interrupt taken
driver attempts to perform IO, tries to take lock, machine hangs solid.

Or what sort of locking scheme did you have in mind?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


From - Thu Nov 08 21:15:36 2018
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From: Alan_Millar@manulife.com
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Subject: [parisc-linux] Would this help
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I understand.  I'm still skeptical that you're going to end up burning
more time fighting those lame elf tools than you would by building with
SOM tools.

Of course, if you had two HP machines, then this is a non-issue :-)



I have been following this newsgroup with a vested interest as I am sitting on 3
HP 712/80 machines. My long term plan is to convert them from HP-UX to Linux and
then ????? but its always nice to have good hardware (If someone offered you 3
old Mercedes would you just junk 2 of them).

IFF it would help the development effort I would be prepared to loan 2 of the
boxes on the basis they came back with Linux installed. (time would not be a
great issue as they are just sitting on the shelf at the moment)

I live in Cambridge Ontario if that helps. Let me know .......

Regards

a.millar@home.com


Alan Millar
Contract Consultant
Y2K End User Team
alan_millar@manulife.com
x6126



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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Dino PCI and I/O spaces
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Xref: news.gmane.org gmane.linux.ports.parisc:9551

> > On a uniprocessor we might take an interrupt between the two cycles. So we
> > have to suffer anyway
> 
> Then we ought to disable interrupts, surely?  Otherwise we can have:
> 
> Grab lock
> interrupt taken
> driver attempts to perform IO, tries to take lock, machine hangs solid.
> 
> Or what sort of locking scheme did you have in mind?

Im already using spinlock_irqsave, for the obvious reason you enumerate above


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Dino PCI and I/O spaces
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Xref: news.gmane.org gmane.linux.ports.parisc:9552

Alan Cox wrote:
> 
> I've put together draft code to handle the Dino PCI configuration space
> accesses. There seems to be no way to do byte sized config accesses, do
> I just read 32bits mask and write 32bits ?

I don't recall HP-UX performing read/modify/write.
I thought Dino will forward the byte enables to the PCI bus.
PCI-PCI bridge numbering I think depends on this.

> The I/O space documentation also doesn't cover how to force sizes for
> inb/inw/inl.

It doesn't clearly for configuration space.
It does for I/O space. I suspect all spaces are handled the
same in this regard.
See section 7.7.3 "Configuration Access Endianness".
Other sections may talk more about the "byte enable" signals.

> Im guessing you simply do that sized memory access to the 0x6C offset.

That's been my experience.

> 
> I'm mapping the notional I/O space 0x0000->0xFFFF as PCI space I/O. Since
> HP boxes have I/O space high no MMIO can be confused for PCI this way.
> If we have multiple Dino's in any box I need to put my thinking hat back on.

Not a problem. Each Dino has it's own configuration and I/O space.
If the parent/child relationship between Dino and PCI devices is
maintained then bus numbering and address assignment is not a problem.

Enabling memory mapped I/O requires programming Dino to respond
to a unique host address range. On the A/B/C/J class boxes, firmware
takes care of this and programming PCI devices BAR registers to match.
The OS can pick this up and pass it too device drivers.

On these boxes it's "uncomplicated" since the host physical address
is the same as the PCI bus address. I mention this since it's not
the case for all HP platforms.

> Also as a btw: PCI I/O port access will suck rocks on HP because we have
> to grab a lock since it is a two stage operation. That may mean we want
> to write smart copy/csum/io and ins* functions for PCI block I/O.

Yup.  HP has generally used memory mapped I/O on all it's platforms.
Since I/O port space is (was?) not performance path, it was OK for the
PCI device driver has to use what we call an "accessor" function.
Ditto for PCI configuration space access.

grant

> Alan
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Enterprise Systems Technology Lab
+1.408.447.7253


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Xref: news.gmane.org gmane.linux.ports.parisc:9553

> > accesses. There seems to be no way to do byte sized config accesses, do
> > I just read 32bits mask and write 32bits ?
> 
> I thought Dino will forward the byte enables to the PCI bus.
> PCI-PCI bridge numbering I think depends on this.

So how do I set those. The documentaiton also says the low two bits of
the register read back as 0. I guess that doesnt actually imply that the
write of it has no affect. 

> It does for I/O space. I suspect all spaces are handled the
> same in this regard.
> See section 7.7.3 "Configuration Access Endianness".
> Other sections may talk more about the "byte enable" signals.

Ok

> > Im guessing you simply do that sized memory access to the 0x6C offset.
> That's been my experience.

Cool

> Enabling memory mapped I/O requires programming Dino to respond
> to a unique host address range. On the A/B/C/J class boxes, firmware
> takes care of this and programming PCI devices BAR registers to match.
> The OS can pick this up and pass it too device drivers.

Excellent. So I can relatively easily stuff an S3 card in the box and
use it as a debugging buffer once we get booting

> On these boxes it's "uncomplicated" since the host physical address
> is the same as the PCI bus address. I mention this since it's not
> the case for all HP platforms.

Ok. We have a clear notion of bus/physical/virtual seperation, and translation
macros. Linux stuff all uses

virt_to_bus() - to convert to bus space
virt_to_phys() - to convert to physical space

Alan


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From: Steven Pritchard <steve@osiris.silug.org>
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Subject: [parisc-linux] HP-UX 11.0 binaries
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I started packaging up binaries of useful things for HP-UX 11.0.  The
binaries (in gzip'd depot format) are at

    ftp://puffin.external.hp.com/pub/parisc/binaries/depot/

Note that everything is configured to install in /usr/local.  (Oh, and
if you have a fresh install of HP-UX 11, you might want to tighten up
the permissions on /usr/local/*.)

The list of stuff I've compiled is somewhat short at this point, but
I'll be adding to it as quickly as my 715/100 will allow.  ;-)  So far
I've got the following:

    bash-2.03-1.depot.gz (*Completely* untested - If you try it
        tonight, do me a favor and let me know if it works.)

    binutils-2.9.1-1.depot.gz (Vanilla binutils 2.9.1.)

    cvs-1.10.6-1.depot.gz (Slightly patched because of a conflicting
        definition in rpc/nis.h for UNKNOWN.  Not tested as much as
        I'd like...

    diffutils-2.7-1.depot.gz
    fileutils-4.0-1.depot.gz
    flex-2.5.4-1.depot.gz

    gcc-2.8.1-1.depot.gz (Compiled to use HP's as.)
    gcc-2.8.1-2.depot.gz (Compiled to use GNU as, and with stabs
        support.)

    less-3.40-1.depot.gz (Seems a little broken.  Something must have
        changed in HP's curses libs from 10.20 to 11.0...)

    make-3.77-1.depot.gz
    patch-2.5-1.depot.gz

(I left egcs-1.1.2 compiling as I left work.  It should be out there
first thing in the morning, US time.)

Probably the quickest way to install any of the above is to gunzip the
file, then do "swinstall -v -s foo-xxx.depot foo".  (I'll try to type
up some more detailed instructions, plus some instructions for
creating the packages, later in the week.)

Let me know how the stuff works for you if you install any of it.

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(217)698-1694             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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>Probably the quickest way to install any of the above is to gunzip the
>file, then do "swinstall -v -s foo-xxx.depot foo".  (I'll try to type
>up some more detailed instructions, plus some instructions for
>creating the packages, later in the week.)


The easiest is probably ...

    $ swinstall -v -s /path/foo.depot \*

Be sure to start the depot path with a path starting with / or SDUX gets
confused -- it will think you're trying to access a remote depot.

Thanks for packaging those up!

Rich


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Dino PCI and I/O spaces
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Alan Cox wrote:
> > > accesses. There seems to be no way to do byte sized config accesses, do
> > > I just read 32bits mask and write 32bits ?
> > 
> > I thought Dino will forward the byte enables to the PCI bus.
> > PCI-PCI bridge numbering I think depends on this.
> 
> So how do I set those. The documentaiton also says the low two bits of
> the register read back as 0. I guess that doesnt actually imply that the
> write of it has no affect. 

The PCI_CONFIG_ADDR register (offset 0x64) is used to source the
word address. So it's not surprising the lower order bits are RO.

"Byte enables" are GSC and PCI bus signals - not register contents.
The PA processor generates byte enable signals on the GSC bus and
Dino forwards those for the appropriate bytes (swapped to match
the swapping/endian conversion done for the PCI_CONFIG_DATA register.)
The byte enable signals are taken when a processor read/write targets
the PCI_CONFIG_DATA register (offset 0x68). The contents of PCI_CONFIG_ADDR
and bytes enable signals from GSC bus are combined to generate a read/write
transaction on the PCI bus.

(Disclaimer: I'm not as certain of the above as it sounds though I
believe it's correct - remember, I'm a SW engineer :^)


> > On these boxes it's "uncomplicated" since the host physical address
> > is the same as the PCI bus address. I mention this since it's not
> > the case for all HP platforms.
> 
> Ok. We have a clear notion of bus/physical/virtual seperation, and
> translation macros. Linux stuff all uses
> 
> virt_to_bus() - to convert to bus space
> virt_to_phys() - to convert to physical space

Excellent.

later,
grant

> 
> Alan
> 

Grant Grundler
Enterprise Systems Technology Lab
+1.408.447.7253


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Richard J. Rauenzahn said:
> The easiest is probably ...
> 
>     $ swinstall -v -s /path/foo.depot \*
> 
> Be sure to start the depot path with a path starting with / or SDUX gets
> confused -- it will think you're trying to access a remote depot.

Oops.  You're right.  I typed that message up in a hurry.  Sorry about
that.

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(217)698-1694             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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From: "Ross Sponholtz" <rsponholtz@earthlink.net>
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Subject: Re: [parisc-linux] HP-UX 11.0 binaries
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Since it is looking like I'm not going to get much done without HP/UX, does
anyone have any suggestions on how to get HP/UX for my 715/50?  I bought the
machine off ebay, and there was no OS installed.  Thanks!

Ross Sponholtz
rsponholtz@earthlink.net


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From: Bill Katz <billk@sr.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Dino PCI and I/O spaces (fwd)
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|Alan Cox wrote:
|> > > accesses. There seems to be no way to do byte sized config accesses, do
|> > > I just read 32bits mask and write 32bits ?
|> > 
|> > I thought Dino will forward the byte enables to the PCI bus.
|> > PCI-PCI bridge numbering I think depends on this.
|> 
|> So how do I set those. The documentaiton also says the low two bits of
|> the register read back as 0. I guess that doesnt actually imply that the
|> write of it has no affect. 
|
|The PCI_CONFIG_ADDR register (offset 0x64) is used to source the
|word address. So it's not surprising the lower order bits are RO.
|
|"Byte enables" are GSC and PCI bus signals - not register contents.
|The PA processor generates byte enable signals on the GSC bus and
|Dino forwards those for the appropriate bytes (swapped to match
|the swapping/endian conversion done for the PCI_CONFIG_DATA register.)
|The byte enable signals are taken when a processor read/write targets
|the PCI_CONFIG_DATA register (offset 0x68). The contents of PCI_CONFIG_ADDR
|and bytes enable signals from GSC bus are combined to generate a read/write
|transaction on the PCI bus.
|
|(Disclaimer: I'm not as certain of the above as it sounds though I
|believe it's correct - remember, I'm a SW engineer :^)
|

Grant has it right.  I've watchedd Dino with a full logic analyzer on
both GSC and PCI...  The 4 byte enables get swapped as Grant described
and if you do a single byte access, a single byte pops out the other side.

	-Bill


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From: Ulrich.Strelow@schering.de
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Subject: [parisc-linux] Compiling Linux Kernel on HP-UX
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Hi,

I'm trying to compile the latest CVS-snapshot (19990615) on my HP 715/33
using gcc 2.7.2.2 and binutils 2.7. Compiling kernel/sched.c gives the
following error:

sched.c:579: section attributes are not supported for this target

I am running HP-UX 10.20, so I cannot use the depots from
ftp://puffin.external.hp.com/pub/parisc/binaries/depot/.
So the question is: do I need gcc 2.8.1 and binutils 2.9.1 to build the
kernel on HP-UX or is this some other error ?

Ulrich
---------------------------------------------
Ulrich Strelow
<ulrich.strelow@schering.de or
ulrich_strelow@csi.com>
Berlin, Germany



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From: tor@spacetec.no (Tor Arntsen)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Compiling Linux Kernel on HP-UX
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In-Reply-To: Ulrich.Strelow@schering.de
       "[parisc-linux] Compiling Linux Kernel on HP-UX" (Jun 15, 11:26)
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On Jun 15, 11:26, Ulrich.Strelow@schering.de wrote:
>I am running HP-UX 10.20, so I cannot use the depots from
>ftp://puffin.external.hp.com/pub/parisc/binaries/depot/.
>So the question is: do I need gcc 2.8.1 and binutils 2.9.1 to build the
>kernel on HP-UX or is this some other error ?

I'm pretty sure you need the hacked egcs and binutils.  You can check them 
out of cvs from the same place as the kernel (I use them for cross-compiling 
though).

-Tor


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From: Averell Eisner <a_eisner@eisner.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP-UX 11.0 binaries
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Organization: Eisner Associates, Inc,
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Ross Sponholtz wrote:
> 
> Since it is looking like I'm not going to get much done without HP/UX, does
> anyone have any suggestions on how to get HP/UX for my 715/50?  I bought the
> machine off ebay, and there was no OS installed.  Thanks!
> 
> Ross Sponholtz
> rsponholtz@earthlink.net
> 

If you can use a copy of HP-UX 10.20 for workstations from earlier this
year, I have several unopened sets at my office. Each set includes the
the OS, the application disks and the extension set.  The HP list price
is $520. each. I normally sell a set for $150.  I willing to sell them
for $100 to recover part of my cost.

Also, I have some HP workstations and servers I took in as trade. The
workstation batch includes 712s, 715s, 725s and 735s. Any interest?
-- 
Averell

Eisner Associates, Inc.                 Phone: 908-233-6585
516 North Ave. East                     FAX:   908-233-0710
P.O. Box 2489
Westfield, NJ 07090


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Dino PCI and I/O spaces (fwd)
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> Grant has it right.  I've watchedd Dino with a full logic analyzer on
> both GSC and PCI...  The 4 byte enables get swapped as Grant described
> and if you do a single byte access, a single byte pops out the other side.

Thanks. I'll go and change my PCI code to reflect reality

Alan


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From: Bill Katz <billk@sr.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Lasi/Dino/Interrupts (fwd)
Date: Tue, 15 Jun 1999 08:30:47 -0700 (PDT)
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I didn't see any answers, and I've got a couple...

|I've started putting together some basic code to drive LASI and DINO.
|Some things aren't terribly clear however
|
|1.	How much of LASI/DINO/PCI has been initialised by the boot firmware.
|	Has it performed the PCI device configurations and assigned bus
|	spaces for the devices ?

The PCI firmware is rather extensive.  It walks the bus, can deal with
PCI to PCI bridges, and assigns both address space and interrupt
lines to every device it finds.  It leaves the imporartant information
in the base address register and interrupt line register of the PCI devices
it finds.

|
|	Will the LASI devices be in reset state except for the console port
|	(Im assuming lasi is driving the firmware console ?)

Yes, LASI is used for tty0, or the firmware console on all systems
that have a LASI.  I believe you can work really hard at assigning
the console somewhere else, like tty1, which comes from either DINO
or WAX, or ... depending on which system we're talking about.

On systems that use LASI LAN and SCSI those modules will be up and running
by the time the OS is launched.  I believe on systems that use the DEC
LANchip LASI LAN is disabled.  The keyboard controller is LASI is
also likely up and running.
|
|2.	It isnt totally clear from the docs what the input clock of the
|	16550A macrocell is. I need that for the serial.c code obviously..

In section 7.4 it says "the baudrate reference frequency is taken from
the 40 MHz IO system clock.  The frequency 7.2727 MHz is generated
by dividing 40 MHz by 5.5."  7.2727 MHz goes to the Macrocell.

Dino can get its 16500 reference clock from either the GSC clock
or the PCI clock.  I'd have to look through the bootROM source
to remember which way it's set up.

|
|3.	The parallel port slave reset is at 102000 in the register map. The
|	docs elsewhere say the parallel port DMA registers can be reset
|	by writing to offset 10300 - should this be 102000 or 103000 - ie
|	is the dma reset for the parallel seperate , and is it at the
|	obvious place or really is one of the 8bit bus (flash) addresses

The parallel port registers are definitely not in flash space, especailly
on any system with a PA7300LC since the flash space is from Clark not
LASI, and the parallel port is completely inside LASI.

My reading of the ERS says that the slave reset is at LASI_BASE+0x10_2000
and parallel DMA reset is at LASI_BASE+0x10_3000.  A 4k page is assigned
for each set of registers.  Where does it say 10300?  I'll fix the ERS.

|
|4.	Do I need to set bits in the I/O reset register back to 1 after
|	a reset in order to bring them back active or is that automatic.

I don't know that one.  If trial and error doesn't tell you, I could
either run down chip designers or read HPUX driver code.

|
|I have the irq handlers for LASI and DINO done. These will map the 
|multiplexed irqs from these devices onto the linux "one irq space" model
|presented to drivers.

SOunds good.

	-Bill Katz


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From: Kirk Bresniker <kirkb@chrome.rose.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Compiling Linux Kernel on HP-UX
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|
| Hi,
|
| I'm trying to compile the latest CVS-snapshot (19990615) on my HP 715/33
| using gcc 2.7.2.2 and binutils 2.7. Compiling kernel/sched.c gives the
| following error:
|
| sched.c:579: section attributes are not supported for this target
|
| I am running HP-UX 10.20, so I cannot use the depots from
| ftp://puffin.external.hp.com/pub/parisc/binaries/depot/.
| So the question is: do I need gcc 2.8.1 and binutils 2.9.1 to build the
| kernel on HP-UX or is this some other error ?
|

gcc 2.8.1 isn't quite enough. Although it does support section
attributes, there is a bug in the code emitted that cannot be assembled
with gas 2.9.1. I sucessfully worked around it by changing the condition
from a fatal error to a warning in gas.

Here is the text of the bug I submitted to gcc:


e of __attribute__((__section__())) to force code into a specific
section
generates code which causes the assembler to fail.

Here is an example:

/* test.c */
int __attribute__ ((__section__ (".text.init")))  a(x)
int x;
{
 return(x+1);
}

int b(x)
int x;{
 return(x+2);
}

int __attribute__ ((__section__ (".text.init")))  c(x)
int x;{
 return(x+1);
}

main(){
 printf("a(0)=%d\n",a(0));
 printf("b(0)=%d\n",b(0));
 printf("c(0)=%d\n",c(0));
}


Here is the output of gcc:

# gcc test.c
/var/tmp/cca10410.s: Assembler messages:
/var/tmp/cca10410.s:59: Warning: Parameters of an existing subspace
can't be modified
/var/tmp/cca10410.s:59: Error: Rest of line ignored. First ignored
character is`,'.

Creating the assembly language output and examining for .SUBSPA
directives, we
find the following:

# gcc -S test.c
# grep SUBSPA test.s

# gcc -S test.c
# grep SUBSPA test.s
        .SUBSPA $DATA$,QUAD=1,ALIGN=8,ACCESS=31
        .SUBSPA $BSS$,QUAD=1,ALIGN=8,ACCESS=31,ZERO,SORT=82
        .SUBSPA $LIT$,QUAD=0,ALIGN=8,ACCESS=44
        .SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY
        .SUBSPA .text.init,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY,SORT=24
        .SUBSPA a
        .SUBSPA $CODE$
        .NSUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY
        .SUBSPA .text.init,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY,SORT=24
        .SUBSPA c
        .SUBSPA $LIT$
        .SUBSPA $CODE$
        .NSUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY

Note that the section .text.init is declared with all the parameters
twice.
The second occurance should not include the parameters.

If the second declaration is edited to remove the parameters, then the
code
assembles and run correctly.

# cp test.s test_fixed.s
# vi test_fixed.s
# diff test.s test_fixed.s
59c59
<       .SUBSPA .text.init,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY,SORT=24
---
>       .SUBSPA .text.init
# gcc -o test_fixed test_fixed.s
# ./test_fixed
a(0)=1
b(0)=2
c(0)=1


KMB
--
+============================================================+
|       Kirk Bresniker          (916) 785-5677               |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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Hi Ross !

You get HP-UX 10.20 for free from HP, when you order the "Transisition Toolkit"
(=fixes Y2K Problems with HP-UX versions prior to HP-UX 10.20) for HP9000 boxes.

Helge Deller.

Ross Sponholtz schrieb:

> Since it is looking like I'm not going to get much done without HP/UX, does
> anyone have any suggestions on how to get HP/UX for my 715/50?  I bought the
> machine off ebay, and there was no OS installed.  Thanks!
>
> Ross Sponholtz
> rsponholtz@earthlink.net
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

--
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Lasi/Dino/Interrupts (fwd)
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In-Reply-To: <199906151530.IAA17946@meow.sr.hp.com> from "Bill Katz" at Jun 15, 99 08:30:47 am
Xref: news.gmane.org gmane.linux.ports.parisc:9567

> The PCI firmware is rather extensive.  It walks the bus, can deal with
> PCI to PCI bridges, and assigns both address space and interrupt
> lines to every device it finds.  It leaves the imporartant information
> in the base address register and interrupt line register of the PCI devices
> it finds.

Ok. That makes life very easy for us indeed.

> The parallel port registers are definitely not in flash space, especailly
> on any system with a PA7300LC since the flash space is from Clark not
> LASI, and the parallel port is completely inside LASI.
> 
> My reading of the ERS says that the slave reset is at LASI_BASE+0x10_2000
> and parallel DMA reset is at LASI_BASE+0x10_3000.  A 4k page is assigned
> for each set of registers.  Where does it say 10300?  I'll fix the ERS.

The bottom of 12.2.2 under table 14

"The parallel port dma registers will be .."

Alan


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From: Andrew Patterson <andrew@bumbles.sde.hp.com>
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Subject: Re: [parisc-linux] Compiling Linux Kernel on HP-UX
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Ulrich,

You can get HP-UX 10.20 binaries at http://hpux.cae.wisc.edu They have
gcc 2.8.1.  They also have many other Open Source packages.

Andrew

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
   Andrew Patterson                          Voice:  (970) 898-3261
   Hewlett-Packard Company                   FAX:    (970) 898-2180
   Development Solutions Lab                 email: andrew@fc.hp.com
   3404 East Harmony Road / MS 7
   Fort Collins, Colorado  80525  



> 
> 
> Hi,
> 
> I'm trying to compile the latest CVS-snapshot (19990615) on my HP 715/33
> using gcc 2.7.2.2 and binutils 2.7. Compiling kernel/sched.c gives the
> following error:
> 
> sched.c:579: section attributes are not supported for this target
> 
> I am running HP-UX 10.20, so I cannot use the depots from
> ftp://puffin.external.hp.com/pub/parisc/binaries/depot/.
> So the question is: do I need gcc 2.8.1 and binutils 2.9.1 to build the
> kernel on HP-UX or is this some other error ?
> 
> Ulrich
> ---------------------------------------------
> Ulrich Strelow
> <ulrich.strelow@schering.de or
> ulrich_strelow@csi.com>
> Berlin, Germany
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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Subject: Re: [parisc-linux] Compiling Linux Kernel on HP-UX
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To: tor@spacetec.no (Tor Arntsen)
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Tor Arntsen said:
> On Jun 15, 11:26, Ulrich.Strelow@schering.de wrote:
> >I am running HP-UX 10.20, so I cannot use the depots from
> >ftp://puffin.external.hp.com/pub/parisc/binaries/depot/.
> >So the question is: do I need gcc 2.8.1 and binutils 2.9.1 to build the
> >kernel on HP-UX or is this some other error ?
> 
> I'm pretty sure you need the hacked egcs and binutils.  You can check them 
> out of cvs from the same place as the kernel (I use them for cross-compiling 
> though).

I suppose I should mention that the only reason I chose to compile gcc
2.8.1 and binutils 2.9.1 was that I was almost positive that gcc 2.8.1
would build with the bundled K&R compiler.  (I couldn't find a copy of
the ANSI C compiler for 11 over the weekend.)  I figured that the
vanilla gcc and binutils would give me enough of a development
environment that I could build anything else.

I have binaries of egcs 1.1.2 built, but I'm going to try to run the
test suite before I put them out on puffin.external.hp.com.  After
that, I'll go for the CVS versions.  When it looks like everything is
built for 11, I'll probably go back and build 10.20 binaries of
anything you can't already find on hpux.cs.utah.edu or
hpux.cae.wisc.edu.

BTW, I've tested the bash binary...  It seems to work fine.

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(217)698-1694             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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> 
> |
> | Hi,
> |
> | I'm trying to compile the latest CVS-snapshot (19990615) on my HP 715/33
> | using gcc 2.7.2.2 and binutils 2.7. Compiling kernel/sched.c gives the
> | following error:
> |
> | sched.c:579: section attributes are not supported for this target
> |
> gcc 2.8.1 isn't quite enough. Although it does support section
> attributes, there is a bug in the code emitted that cannot be assembled
> with gas 2.9.1. I sucessfully worked around it by changing the condition
> from a fatal error to a warning in gas.
> 
> Here is the text of the bug I submitted to gcc:

I haven't tried your sample but I don't have the the section problem
with gcc-2.95 (prerelease) and binutils-2.9.4 (pre).  I do have a
link problem:

ld -N -e _stext arch/parisc/kernel/head.o arch/parisc/kernel/init_task.o init/ma
in.o init/version.o \
	arch/parisc/kernel/kernel.o arch/parisc/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o \
	fs/filesystems.a \
	net/network.a \
	drivers/block/block.a drivers/char/char.a  drivers/net/net.a \
	/ehic/a/pa/linux/arch/parisc/lib/lib.a /ehic/a/pa/linux/lib/lib.a /ehic/a/pa/linux/arch/parisc/lib/lib.a \
	-o vmlinux
ld: Unsatisfied symbols:
   swapper_pg_dir (data)
   _stext (data)
make: *** [vmlinux] Error 1

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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HP have invited me to be at their stand for LinuxTag in Kaiserslautern,
Germany on the 26th/27th of June.  I'd like to be able to demonstrate
something, even if it's just the bootloader and a spinning cursor.

I guess what I want is another machine that is attached to the webconsole
and a network between them to allow the A180 to netboot.  Or does someone
have a better idea?  (Would these management cards someone mentioned be
any use?)

----- Forwarded message -----

Now I have some more questions:
- What HW do you need exactly? You wrote a A180. This is o.k., but are 
there other necessaries you need in the A180? And which linux version do 
you need on this server?
- Could you install the SW on the server?

----- End forwarded message -----

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: [parisc-linux] A quick update
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After an enormous amount of frustration (with fault only to me, I should
have thought that there was a second bootpserver on my network), the
kernel tree in CVS actually builds on HPUX.  This is really just Jason's
work glued into the kernel tree.

Next:

- we need an HPUX ld linker script to resolve the vmlinux building,
what's the format for this?

- we need to figure out why the bootloader gives an error when loading
the kernel into memory

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Subject: Re: [parisc-linux] A quick update
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  In message <3769F3AD.DF068942@thepuffingroup.com>you write:
  > - we need an HPUX ld linker script to resolve the vmlinux building,
  > what's the format for this?
No such animal that I'm aware of.

There is some rough ordering control using the space/subspace sort keys, but
you don't get absolute control over where stuff ends up in memory.

In what ways do you need to control the layout of stuff in memory?

jeff



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Subject: Re: [parisc-linux] A quick update
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You probably want to use the same link options as Jason used for the IPL:

-N -R address.

The address specified should match the location where the kernel is
loaded into the LIF image.  The -N places the $DATA$ section after
the $CODE$ section in low memory.  The +n option that was being used
in the Makefile has the $DATA$ section in the 0x40000000 quadrant.  
This is wrong for the kernel.

After the kernel is built, take a look at where the sections start
in SOM executable.  Each section must be copied to its corresponding
starting address in the LIF image.  Space must be reserved for the bss
data if there is a section after it that contains necessary data.

Dave

> 
> 
> After an enormous amount of frustration (with fault only to me, I should
> have thought that there was a second bootpserver on my network), the
> kernel tree in CVS actually builds on HPUX.  This is really just Jason's
> work glued into the kernel tree.
> 
> Next:
> 
> - we need an HPUX ld linker script to resolve the vmlinux building,
> what's the format for this?
> 
> - we need to figure out why the bootloader gives an error when loading
> the kernel into memory
> 
> - Alex
> 
> -- 
> Alex deVries
> Vice President of Engineering
> The Puffin Group
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] A quick update
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John David Anglin wrote:
> You probably want to use the same link options as Jason used for the IPL:
> -N -R address.

Ah, okay.

> After the kernel is built, take a look at where the sections start
> in SOM executable.  Each section must be copied to its corresponding
> starting address in the LIF image.  Space must be reserved for the bss
> data if there is a section after it that contains necessary data.

Should I be using objcopy to cut these sections out of my SOM executable
and into the LIF image?

Two other problems I have:

1. The kernel doesn't build yet, it fails to link and dies with:


ld -e stext arch/parisc/kernel/head.o arch/parisc/kernel/init_task.o
init/main.o init/version.o \
        arch/parisc/kernel/kernel.o arch/parisc/mm/mm.o kernel/kernel.o
mm/mm.o fs/fs.o ipc/ipc.o \
        fs/filesystems.a \
        net/network.a \
        drivers/block/block.a drivers/char/char.a  drivers/net/net.a \
        /usr/src/linux/arch/parisc/lib/lib.a /usr/src/linux/lib/lib.a
/usr/src/linux/arch/parisc/lib/lib.a \
        -o vmlinux
ld: Unsatisfied symbols:
   swapper_pg_dir (data)
   _stext (data)

I haven't yet figured out how to solve this.

2. The bootloader within the kernel tries to load the vmlinux into
memory, but dies by returning -6 at the P0_BOOTDEV_iodc_io() call within
bootdev_sread() in rom _interface.c.  I should be able to figure out
what's going on here...


- A
-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Subject: Re: [parisc-linux] A quick update
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> 
> 
> John David Anglin wrote:
> > You probably want to use the same link options as Jason used for the IPL:
> > -N -R address.
> 
> Ah, okay.
> 
> > After the kernel is built, take a look at where the sections start
> > in SOM executable.  Each section must be copied to its corresponding
> > starting address in the LIF image.  Space must be reserved for the bss
> > data if there is a section after it that contains necessary data.
> 
> Should I be using objcopy to cut these sections out of my SOM executable
> and into the LIF image?

I don't think so.  While I haven't checked all the options of objcopy,
its basic function is to copy object modules from one file to another.
If it understood the LIF format, it might work but I don't think it
does.  If I understand the situation,  the LIF image gets loaded directly
into memory.  Thus, the code that builds the LIF image must simulate
a loader, putting each section into it appropriate location in the image.
You must assure when the kernel and ipl are linked that the relocation
address of each section agrees with where it is placed in the LIF image
so that all symbols are appropriately relocated.  IPL doesn't do
anything fancy.  It looks like it just loads the kernel after itself
into memory.

After linking, the executable files for the kernel and ipl each have
a header that describe what kind object file they are.  The header also has
info about the sections in the executable.  Ideally, the program that
builds the LIF image would look at the headers in the ipl and kernel
and build the LIF image.  However, you can probably get away with
using a simple program to copy the ipl and kernel files.

You must watch out for the size of the header on each file (file
offset).  The linker script for the ELF format kernel set the origin
for .text to 0x8000.  The corresponding option for the HP linker
would be "-N -R 8000".  When I do this, the file offset to the
start of the $TEXT$ section (the first section in the file) is
0x28000.  Thus, you want to copy starting from 0x28000 in vmlinux
to 0x8000 in the LIF image.

The $BSS$ section is not in the executables since it loads as all
zeros.  However, since it is the last section in the executables
you simply have to ensure that there is enough space between the
kernel and ipl.  You need enough space for the ipl bss data and
its dynamically allocated stack.

> Two other problems I have:
> 
> 1. The kernel doesn't build yet, it fails to link and dies with:
> 
> 
> ld -e stext arch/parisc/kernel/head.o arch/parisc/kernel/init_task.o
> init/main.o init/version.o \
>         arch/parisc/kernel/kernel.o arch/parisc/mm/mm.o kernel/kernel.o
> mm/mm.o fs/fs.o ipc/ipc.o \
>         fs/filesystems.a \
>         net/network.a \
>         drivers/block/block.a drivers/char/char.a  drivers/net/net.a \
>         /usr/src/linux/arch/parisc/lib/lib.a /usr/src/linux/lib/lib.a
> /usr/src/linux/arch/parisc/lib/lib.a \
>         -o vmlinux
> ld: Unsatisfied symbols:
>    swapper_pg_dir (data)
>    _stext (data)

You want to export swapper_pg_dir in head.S.  I think in init/main.c,
you should change the declaration for _stext to "extern void _stext ();"
and "&_stext" to "_stext".  The linker thinks _stext is a reference
to data rather than text.  The other option would be to put the address
label _stext into a an exported word in the data section of head.S.  
Main.c could then determine the start of text from this location.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: [parisc-linux] A quick update
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Alex deVries wrote:
> Next:
> 
> - we need an HPUX ld linker script to resolve the vmlinux building,
> what's the format for this?

Thomas Bogendorfer solved this for us.

> 
> - we need to figure out why the bootloader gives an error when loading
> the kernel into memory

It looks like an IPL problem...

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Cary Coutant <cary@cup.hp.com>
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Subject: Re: [parisc-linux] A quick update
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>The -N places the $DATA$ section after
>the $CODE$ section in low memory.  The +n option that was being used
>in the Makefile has the $DATA$ section in the 0x40000000 quadrant.  
>This is wrong for the kernel.

The opposite of -N is -n, not +n. The +n option tells the linker to 
search archive libraries iteratively, which I believe is needed for the 
Linux kernel.

The -N option tells the linker to build a "non-shareable" executable, so 
it puts text and data together in one segment. The -n option is the 
default, where shareable text is placed in the first quadrant and data is 
placed in the second quadrant.


Cary Coutant
Hewlett-Packard Co.
Application Delivery Lab


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> 
> >The -N places the $DATA$ section after
> >the $CODE$ section in low memory.  The +n option that was being used
> >in the Makefile has the $DATA$ section in the 0x40000000 quadrant.  
> >This is wrong for the kernel.
> 
> The opposite of -N is -n, not +n. The +n option tells the linker to 
> search archive libraries iteratively, which I believe is needed for the 
> Linux kernel.

Thanks for the information on the +n option.  My old system doesn't
document +n.  However, with the simple configuration that is being
tested, it doesn't seem necessary to link the kernel with +n.  Possibly,
+n will be required when more modules are configured in the kernel.

> The -N option tells the linker to build a "non-shareable" executable, so 
> it puts text and data together in one segment. The -n option is the 
> default, where shareable text is placed in the first quadrant and data is 
> placed in the second quadrant.

Based on the code in the IPL that is being used, it looks like -N
is the correct choice.  The IPL doesn't try to load kernel data
into the second quadrant as far as I can tell.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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  In message <199906181305.JAA06811@hiauly1.hia.nrc.ca>you write:
  > After the kernel is built, take a look at where the sections start
  > in SOM executable.  Each section must be copied to its corresponding
  > starting address in the LIF image.  Space must be reserved for the bss
  > data if there is a section after it that contains necessary data.
Right.  Use the exec header to find a.out-like boundaries for text, data & bss.

Do not try to build up a memory image using the space/subspace stuff.  You'll
be bitterly disappointed to find out that the info on the space/subspaces is
not wholly accurate in an executable image.

jeff



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  In message <376A51F5.D38ECFFC@thepuffingroup.com>you write:
  > Should I be using objcopy to cut these sections out of my SOM executable
  > and into the LIF image?
No, I doubt objcopy knows about LIF (I've certainly never bothered to 
describe LIF to objcopy/bfd).

Utah's releases had code to do this kind of thing.  Or you might be able to use
the lif tools on hpux (ls /usr/bin/lif*).


jeff



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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: [parisc-linux] A quick update
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John David Anglin wrote:
> 
> 
> After linking, the executable files for the kernel and ipl each have
> a header that describe what kind object file they are.  The header also has
> info about the sections in the executable.  Ideally, the program that
> builds the LIF image would look at the headers in the ipl and kernel
> and build the LIF image.  However, you can probably get away with
> using a simple program to copy the ipl and kernel files.

That all exists in the tools in linux/arch/parisc/hp/boot/boot_tools. 

> 
> You must watch out for the size of the header on each file (file
> offset).  The linker script for the ELF format kernel set the origin
> for .text to 0x8000.  The corresponding option for the HP linker
> would be "-N -R 8000".  When I do this, the file offset to the
> start of the $TEXT$ section (the first section in the file) is
> 0x28000.  Thus, you want to copy starting from 0x28000 in vmlinux
> to 0x8000 in the LIF image.

Oh, okay.  The linker stuff has all been sorted out (and is in CVS now).

So, here's how you can boot this bootloader:
- on HPUX, install gnu gcc and binutils
- check out the latest kernel tree
- do a 'make config ; make dep ; make vmlinux; make Image'
- boot linux/arch/parisc/hp/boot/Image

It should boot and end with:


Loading kernel...done.
Transferring control to the kernel. (At entry point 0x00008000)

and then hang completely.

The next step is to develop a small mini kernel that we can use to test
the launching. It should just print "Hello world" to the screen using
IODC.  There's lots of example code in the bootloader, so this should be
pretty simple.

- Alex "white water rafting this weekend, far away from PA RISC
equipment" deVries
-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] strace/truss/par equivalent for HP-UX
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I've found trace for HP-UX 10.20 (and 10.10, 9.x) on ftp.interworks.org
(as recommended by the HPUX FAQ), however it doesn't appear to have been
updated for HP-UX 11.  What do you guys at HP use to trace programs?

Rather than waste time trying to get it to compile when it probably
won't link, anyone want to give me a trace of what system calls `sh'
makes when it starts up so I can have a crack at getting the most useful
bits of HPUX binary compatibility working?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] strace/truss/par equivalent for HP-UX
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  In message <19990620084918.H30362@mencheca.ch.genedata.com>you write:
  > Rather than waste time trying to get it to compile when it probably
  > won't link, anyone want to give me a trace of what system calls `sh'
  > makes when it starts up so I can have a crack at getting the most useful
  > bits of HPUX binary compatibility working?
Actually for binary compatibility the linker & X server tended to exercise
the most useful bits.  Or more correctly, those were the hpux bins we (UofU)
wanted to run most badly and thus that's were we concentrated our effort :-)

If you look in Utah's code you'll find the majority of the hpux compat code;
though it will need some updating since those releases predated hpux10 and
hpux11.

Presumably you're thinking about firing up the hpux shell instead of a mini
shell the first time we attempt to get to single user using hpux compat?


jeff



  > 
  > -- 
  > Matthew Wilcox <willy@bofh.ai>
  > "Windows and MacOS are products, contrived by engineers in the service of
  > specific companies. Unix, by contrast, is not so much a product as it is a
  > painstakingly compiled oral history of the hacker subculture." - N Stephens
  > on
  > 
  > ---------------------------------------------------------------------------
  > To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
  > `unsubscribe' as the subject.
  > 
  > 



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From: Jack Perdue <j-perdue@tamu.edu>
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Subject: Re: [parisc-linux] strace/truss/par equivalent for HP-UX
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At 08:49 AM 6/20/99 +0200, MW wrote:
>
>I've found trace for HP-UX 10.20 (and 10.10, 9.x) on ftp.interworks.org
>(as recommended by the HPUX FAQ), however it doesn't appear to have been
>updated for HP-UX 11.  What do you guys at HP use to trace programs?


FWIW, you can try tusc at:

 ftp://ftp.cup.hp.com/dist/networking/misc/         ^[1]

jack [who has no idea whether guys at HP use such a thing]
j-perdue@tamu.edu


[1]

>From: foo@bar.baz (Rick Jones)
>Newsgroups: comp.sys.hp.hpux
>Subject: new version of syscall tracing tool on ftp.cup.hp.com
>Date: 19 Apr 1999 18:36:25 GMT
>Organization: the Unofficial Hewlett-Packard
>Lines: 16
>Message-ID: <7fft39$3ha$2@ocean.cup.hp.com>
>NNTP-Posting-Host: loiter.cup.hp.com
>Summary: A new version of tusc, a tool for system call tracing, is available
>Keywords: tusc, trace, truss
>X-Newsreader: TIN [version 1.2 PL2.13]
>Xref: news.tamu.edu comp.sys.hp.hpux:105999
>
>Folks
>
>Tusc is a trace/truss-like system call tracing tool for HP-UX 11. 
>
>The author of tusc has made further enhancements to the tusc syscall
>tracing tool. They are in the area of improving the tracing of large
>numbers of processes.
>
>The copy of tusc at ftp://ftp.cup.hp.com/dist/networking/misc/ has
>been updated.
>
>rick jones
>--
>these opinions are mine, all mine; HP might not want them anyway... :)
>feel free to email, or post, but please do not do both...
>my email address is raj in the cup.hp.com domain...


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Xref: news.gmane.org gmane.linux.ports.parisc:9586

On Sun, Jun 20, 1999 at 02:32:33AM -0500, Jack Perdue wrote:
> At 08:49 AM 6/20/99 +0200, MW wrote:
> >
> >I've found trace for HP-UX 10.20 (and 10.10, 9.x) on ftp.interworks.org
> >(as recommended by the HPUX FAQ), however it doesn't appear to have been
> >updated for HP-UX 11.  What do you guys at HP use to trace programs?
> 
> 
> FWIW, you can try tusc at:
> 
>  ftp://ftp.cup.hp.com/dist/networking/misc/         ^[1]
> 
> jack [who has no idea whether guys at HP use such a thing]
> j-perdue@tamu.edu

That is wonderful, thank you very much.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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How far do we want to or are we able to go with making constants identical
between HPUX and Linux?

Some syscalls are going to have to be different between the two OSes --
ioctl is the obvious example -- but it would be nice to have to do as
little work as possible.

I've just been through errno.h making the Linux error numbers the same as
the HPUX ones.  This seems pretty sane; I can't imagine that it will have
any negative effect on anything.  Where it gets a little more thorny is
in signal.h -- HPUX uses more than 32 signals.  Is it going to negatively
impact Linux at all to use more than 32?  I see there is space reserved
for them, but I'd like someone to reassure me.

The real thing which bothers me about this is that doing this means that
HPUX and Linux are then allocating from the same numberspace, so where
Linux has things which HPUX doesn't, HPUX might later allocate the same
number for a different extension.

(Of course, if HP want to add Linux binary compatibility to HPUX, now
would be a great time to mention it :-)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: Re: [parisc-linux] HPUX binary compatibility
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Re:

> How far do we want to or are we able to go with making constants identical
> between HPUX and Linux?
> 
> Some syscalls are going to have to be different between the two OSes --
> ioctl is the obvious example -- but it would be nice to have to do as
> little work as possible.

that's why I suggested shifting the Linux system call magic numbers
upwards, to avoid the HP range.  If the Linux ioctl is different than the
HP-UX one, then it should have a different syscall number.
 
> Linux has things which HPUX doesn't, HPUX might later allocate the same
> number for a different extension.

Not if HP agrees to reserve a range for Linux use.
 
> (Of course, if HP want to add Linux binary compatibility to HPUX, now
> would be a great time to mention it :-)

that sounds fair!
 
-- 
Stan Sieler                                          sieler@allegro.com
                                         http://www.allegro.com/sieler/


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  In message <19990620194015.J30362@mencheca.ch.genedata.com>you write:
  > 
  > How far do we want to or are we able to go with making constants identical
  > between HPUX and Linux?
We never bothered at the UofU.  It didn't seem worth the headache to try and
get either HP or Berkeley to change syscall, errno or other constants.

  > I've just been through errno.h making the Linux error numbers the same as
  > the HPUX ones.  This seems pretty sane; I can't imagine that it will have
  > any negative effect on anything.  Where it gets a little more thorny is
  > in signal.h -- HPUX uses more than 32 signals.  Is it going to negatively
  > impact Linux at all to use more than 32?  I see there is space reserved
  > for them, but I'd like someone to reassure me.
Just write translators on the hpux emulation side.

ie, consider the linux values the canonical internal form.

You then have two external representations.

  First is linux.  Do nothing here since the internal & external representation
  is the same.

  Second is hpux.  Translate values as you enter/exit the kernel.  So for
  example, you may need a second syscall table to do handoff of syscalls
  after translating the syscall #.  On the exit path you probably need to
  translate errno values.  Similarly for signals.

jeff



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> any negative effect on anything.  Where it gets a little more thorny is
> in signal.h -- HPUX uses more than 32 signals.  Is it going to negatively
> impact Linux at all to use more than 32?  I see there is space reserved
> for them, but I'd like someone to reassure me.

How many non RT signals has HP/UX got. If its more than 32 we should allow
for it, otherwise whoever does HP/UX compatibility will hate you 



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On Sun, Jun 20, 1999 at 10:05:16PM +0100, Alan Cox wrote:
> > any negative effect on anything.  Where it gets a little more thorny is
> > in signal.h -- HPUX uses more than 32 signals.  Is it going to negatively
> > impact Linux at all to use more than 32?  I see there is space reserved
> > for them, but I'd like someone to reassure me.
> 
> How many non RT signals has HP/UX got. If its more than 32 we should allow
> for it, otherwise whoever does HP/UX compatibility will hate you 

1-36 are non-RT, 37-44 are RT.  The header file contains the ominous
comment:

/* New signals: assign numbers before _SIGRTMIN, and increase _SIGRTMIN
   and _SIGRTMAX to keep at end. */

The signal.h I committed last night gives Linux/PARISC ordinary signals
from 1-36 and RT signals from 37-64.  I reused _SIGGFAULT (Graphics
framebuffer fault) to be SIGSTKFLT for which HPUX has no equivalent.  My
question was, will having more than 32 signals annoy any Linux people?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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On Sun, Jun 20, 1999 at 02:21:36PM -0600, Jeffrey A Law wrote:
> 
>   In message <19990620194015.J30362@mencheca.ch.genedata.com>you write:
>   > 
>   > How far do we want to or are we able to go with making constants identical
>   > between HPUX and Linux?
> We never bothered at the UofU.  It didn't seem worth the headache to try and
> get either HP or Berkeley to change syscall, errno or other constants.

syscall and errno values are already different on different Linux
architectures anyway, so we have a free hand here.

> Just write translators on the hpux emulation side.

Yes, this is certainly what we'll do.  But if we can be clever and get a
bunch of compatibility for free, then we should.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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To: Matthew.Wilcox@genedata.com (Matthew Wilcox)
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In-Reply-To: <19990621104148.M30362@mencheca.ch.genedata.com> from "Matthew Wilcox" at Jun 21, 99 10:41:48 am
Xref: news.gmane.org gmane.linux.ports.parisc:9593

> framebuffer fault) to be SIGSTKFLT for which HPUX has no equivalent.  My
> question was, will having more than 32 signals annoy any Linux people?

No. It just makes the signal delivery code a microscopic bit trickier


Alan


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: [parisc-linux] Assembly error: entry.S
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The following error occurs building the kernel:

gcc -D__KERNEL__ -I/ehic/a/pa/linux/include    -c -o entry.o entry.S
entry.S:219: macro `ENTRY_NAME' used without args
make[1]: *** [entry.o] Error 1

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] Assembly error: entry.S
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Xref: news.gmane.org gmane.linux.ports.parisc:9595

On Mon, Jun 21, 1999 at 11:06:27AM -0400, John David Anglin wrote:
> The following error occurs building the kernel:
> 
> gcc -D__KERNEL__ -I/ehic/a/pa/linux/include    -c -o entry.o entry.S
> entry.S:219: macro `ENTRY_NAME' used without args
> make[1]: *** [entry.o] Error 1

Delete line 219.  Oops.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: Re: [parisc-linux] Assembly error: entry.S
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Xref: news.gmane.org gmane.linux.ports.parisc:9596

> 
> On Mon, Jun 21, 1999 at 11:06:27AM -0400, John David Anglin wrote:
> > The following error occurs building the kernel:
> > 
> > gcc -D__KERNEL__ -I/ehic/a/pa/linux/include    -c -o entry.o entry.S
> > entry.S:219: macro `ENTRY_NAME' used without args
> > make[1]: *** [entry.o] Error 1
> 
> Delete line 219.  Oops.

and then

gcc -D__KERNEL__ -I/ehic/a/pa/linux/include    -c -o entry.o entry.S
entry.S: Assembler messages:
entry.S:228: Error: bad or irreducible absolute expression; zero assumed
make[1]: *** [entry.o] Error 1

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Subject: Re: [parisc-linux] Assembly error: entry.S
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Xref: news.gmane.org gmane.linux.ports.parisc:9597

On Mon, Jun 21, 1999 at 11:27:31AM -0400, John David Anglin wrote:
> > 
> > On Mon, Jun 21, 1999 at 11:06:27AM -0400, John David Anglin wrote:
> > > The following error occurs building the kernel:
> > > 
> > > gcc -D__KERNEL__ -I/ehic/a/pa/linux/include    -c -o entry.o entry.S
> > > entry.S:219: macro `ENTRY_NAME' used without args
> > > make[1]: *** [entry.o] Error 1
> > 
> > Delete line 219.  Oops.
> 
> and then
> 
> gcc -D__KERNEL__ -I/ehic/a/pa/linux/include    -c -o entry.o entry.S
> entry.S: Assembler messages:
> entry.S:228: Error: bad or irreducible absolute expression; zero assumed
> make[1]: *** [entry.o] Error 1

I don't know how to fix this one since I'm not sure what constants are
available.  The snippet is:

        .rept NR_syscalls-NR_Linux_syscalls
                ENTRY_NAME(sys_ni_syscall)
        .endr

which just pads the table out to the right size.  Evidently the number
256-182 = 74 is not representable.  What numbers are?  I'd guess 64 is.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: Re: [parisc-linux] Assembly error: entry.S
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In-Reply-To: <19990621174231.R30362@mencheca.ch.genedata.com> from "Matthew Wilcox" at Jun 21, 99 05:42:31 pm
X-Mailer: ELM [version 2.4 PL25]
Xref: news.gmane.org gmane.linux.ports.parisc:9598

> 
> On Mon, Jun 21, 1999 at 11:27:31AM -0400, John David Anglin wrote:
> > > 
> > > On Mon, Jun 21, 1999 at 11:06:27AM -0400, John David Anglin wrote:
> > > > The following error occurs building the kernel:
> > > > 
> > > > gcc -D__KERNEL__ -I/ehic/a/pa/linux/include    -c -o entry.o entry.S
> > > > entry.S:219: macro `ENTRY_NAME' used without args
> > > > make[1]: *** [entry.o] Error 1
> > > 
> > > Delete line 219.  Oops.
> > 
> > and then
> > 
> > gcc -D__KERNEL__ -I/ehic/a/pa/linux/include    -c -o entry.o entry.S
> > entry.S: Assembler messages:
> > entry.S:228: Error: bad or irreducible absolute expression; zero assumed
> > make[1]: *** [entry.o] Error 1
> 
> I don't know how to fix this one since I'm not sure what constants are
> available.  The snippet is:
> 
>         .rept NR_syscalls-NR_Linux_syscalls
>                 ENTRY_NAME(sys_ni_syscall)
>         .endr
> 
> which just pads the table out to the right size.  Evidently the number
> 256-182 = 74 is not representable.  What numbers are?  I'd guess 64 is.

The problem is NR_Linux_syscalls is not defined.  Define this to 182
and the file will assemble.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Xref: news.gmane.org gmane.linux.ports.parisc:9599

On Mon, Jun 21, 1999 at 11:55:42AM -0400, John David Anglin wrote:
> The problem is NR_Linux_syscalls is not defined.  Define this to 182
> and the file will assemble.

Ah.  It was supposed to be __NR_Linux_syscalls, of course.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Why don't you boot from tape?  That's what I did.  I was able to get the 
spinning curser on an s800 by dd'ing the bootstrap_4_bin file to tape and 
then booting it.  I tried putting the kernal image on there too but it 
doesn't seem to really pass control to it.

-David Mintz


>From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
>To: parisc-linux@thepuffingroup.com
>Subject: [parisc-linux] LinuxTag
>Date: Thu, 17 Jun 1999 11:22:37 +0200
>
>
>HP have invited me to be at their stand for LinuxTag in Kaiserslautern,
>Germany on the 26th/27th of June.  I'd like to be able to demonstrate
>something, even if it's just the bootloader and a spinning cursor.
>
>I guess what I want is another machine that is attached to the webconsole
>and a network between them to allow the A180 to netboot.  Or does someone
>have a better idea?  (Would these management cards someone mentioned be
>any use?)
>
>----- Forwarded message -----
>
>Now I have some more questions:
>- What HW do you need exactly? You wrote a A180. This is o.k., but are
>there other necessaries you need in the A180? And which linux version do
>you need on this server?
>- Could you install the SW on the server?
>
>----- End forwarded message -----
>
>--
>Matthew Wilcox <willy@bofh.ai>
>"Windows and MacOS are products, contrived by engineers in the service of
>specific companies. Unix, by contrast, is not so much a product as it is a
>painstakingly compiled oral history of the hacker subculture." - N 
>Stephenson
>
>---------------------------------------------------------------------------
>To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.
>


_______________________________________________________________
Get Free Email and Do More On The Web. Visit http://www.msn.com


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] Assembly error: entry.S
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Xref: news.gmane.org gmane.linux.ports.parisc:9601

> 
> On Mon, Jun 21, 1999 at 11:55:42AM -0400, John David Anglin wrote:
> > The problem is NR_Linux_syscalls is not defined.  Define this to 182
> > and the file will assemble.
> 
> Ah.  It was supposed to be __NR_Linux_syscalls, of course.

This is defined in asm/unistd.h.  However, it is not included.  I changed
the asm/segment.h include to asm/unistd.h since the segment.h include
is obsolete.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Hack to head.S
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Xref: news.gmane.org gmane.linux.ports.parisc:9602

A recent change to head.S was made in order to get the kernel to
successfully link.  This change places the kernel entry points
stext and _stext in the 'data' subspace $FLUFFY$.  Aside from the
dubious practice of placing code in the data space, it looks to
me that the change is wrong.

The module init/main.c uses the symbol _stext to determine the
starting address of the kernel text.  Placing the start in the
data region will give a totally erroneous result for the length
of kernel text to profile.  Probably, init/main.c should use
the origin selected for text when linking (currently, 0x8000)
as the start of the kernel text.  Then, the kernel entry points
can be moved back into the standard text space.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: Hack to head.S
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> The module init/main.c uses the symbol _stext to determine the
> starting address of the kernel text.  Placing the start in the
> data region will give a totally erroneous result for the length
> of kernel text to profile.  Probably, init/main.c should use
> the origin selected for text when linking (currently, 0x8000)
> as the start of the kernel text.  Then, the kernel entry points
> can be moved back into the standard text space.

It looks like the symbol __text_start can be used by main.c to
determine the start of text when using the HP linker.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Stan Sieler <sieler@allegro.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HPUX binary compatibility
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Hi,

> > Just write translators on the hpux emulation side.
> 
> Yes, this is certainly what we'll do.  But if we can be clever and get a
> bunch of compatibility for free, then we should.

The problem with translators is that they don't work in all cases.

The most important case is where you want to link some .o files
together: some are compiled for Linux, some for HP-UX. 

*That's* why having different system call numbers is important.

-- 
Stan Sieler                                          sieler@allegro.com
                                         http://www.allegro.com/sieler/


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HPUX binary compatibility
Date: Mon, 21 Jun 1999 11:48:23 -0600
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  In message <199906211723.KAA39308@bart.allegro.com>you write:
  > The problem with translators is that they don't work in all cases.
  > 
  > The most important case is where you want to link some .o files
  > together: some are compiled for Linux, some for HP-UX. 
  > 
  > *That's* why having different system call numbers is important.
You really don't want to do that.  I strongly recommend against it.  In
5 years of working on a system which had hpux compatibility we had zero
need to do this kind of stuff and it just makes things a lot more complicated
than they need to be.

If we wanted to build an hpux app, we had a set of tools to build hpux apps.

jeff


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problems with createheader.sh script
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To: adevries@thepuffingroup.com (Alex deVries)
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In-Reply-To: <376A9AF9.5F3DB326@thepuffingroup.com> from "Alex deVries" at Jun 18, 99 03:16:09 pm
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Xref: news.gmane.org gmane.linux.ports.parisc:9606

When creating a LIF image, i get the following errors:

./boot_tools/createheader.sh boot_code/ipl ../../../../vmlinux
./boot_tools/createheader.sh: !: not found
./boot_tools/createheader.sh: !: not found
(standard_in) 1: illegal character: J
(standard_in) 1: parse error
(standard_in) 1: parse error
(standard_in) 1: parse error
(standard_in) 1: illegal character: J
IPL address: 4096       kernel address: 49152
IPL size:  45056 Jun    kernel size:
IPL entry: 4096         kernel entry: 32768
Header created.

I think the problem is lies with the cut command.  The character
position of file sizes in the 'ls -l' command varies.  The hpux
9.01 ls position differs from that of GNU ls.  I think it would
be better to use awk to grab the file size info.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] HPUX binary compatibility
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In-Reply-To: <14480.929987303@upchuck.cygnus.com> from "Jeffrey A Law" at Jun 21, 99 11:48:23 am
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Xref: news.gmane.org gmane.linux.ports.parisc:9607

Jeff writes:

>   > The problem with translators is that they don't work in all cases.
>   > 
>   > The most important case is where you want to link some .o files
>   > together: some are compiled for Linux, some for HP-UX. 
>   > 
>   > *That's* why having different system call numbers is important.

> You really don't want to do that.  I strongly recommend against it.  In

(Presuming "that" is "have different system call numbers")

> 5 years of working on a system which had hpux compatibility we had zero
> need to do this kind of stuff and it just makes things a lot more complicated
> than they need to be.

You're "compatible" if you can run an HP-UX app "out of the box" (e.g.,
restore it and run).  If you have to run it through a translator of some kind,
you aren't compatible.   (If the translator is part of the OS, and invoked 
automatically & invisibly, that's ok...been there, used that for 15 years 
on MPE)

So...how do you achieve this level of compatibility?  Simple...the HP-UX
system call numbers *must* be honored.  What does that mean, then, if
Linux has an identically named (not numbered) system call whose
semantics differ?  Precisely one thing: the kernel must be able to
differentiate between them.  There are two basic methods of doing this:

  1) different system call numbers

or 

  2) different gateway page for the system calls (e.g., 0xc0000000 for
     HP-UX, and 0xc0000040 for Linux).  (Note: I don't recall the exact
     digits HP-UX uses...the values above are for illustrative purposes)
     (The kernel could check to see which address had been used for the
     call)

Without such a mechanism, you can't tell the system calls apart.

So, the only unanswered question is: is HP-UX compatibility desired?  
If the answer is "yes", the subsequent question (how) was answered above.

-- 
Stan Sieler                                          sieler@allegro.com
                                         http://www.allegro.com/sieler/


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Subject: Re: [parisc-linux] HPUX binary compatibility
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> From: Stan Sieler <sieler@allegro.com>
> Subject: Re: [parisc-linux] HPUX binary compatibility
> To: Matthew.Wilcox@genedata.com (Matthew Wilcox)
> Date: Mon, 21 Jun 1999 10:23:17 -0700 (PDT)
> 
> Hi,
> 
> > > Just write translators on the hpux emulation side.
> > 
> > Yes, this is certainly what we'll do.  But if we can be clever and get a
> > bunch of compatibility for free, then we should.
> 
> The problem with translators is that they don't work in all cases.
> 
> The most important case is where you want to link some .o files
> together: some are compiled for Linux, some for HP-UX. 
> 
> *That's* why having different system call numbers is important.
> 
> -- 
> Stan Sieler                                          sieler@allegro.com
>                                          http://www.allegro.com/sieler/

Yow, that is an ambitious goal!  I can see the desirability of doing it
this way, but I am afraid it may not work.  No example comes to mind but
I worry about subtle assumptions in code written for HP-UX; i.e., merely
defining your structures and constants the same as HP-UX may not be enough.

Like Jeff said, we got by (and still do) by either building such applications
on an HP-UX box or using an emulated HP-UX environment to create real HP-UX
binaries.

Hmm...just read Stan's last message.  There seems to be some confusion about
what we do for compatibility.  When we exec a binary, it is identified as
either being HP-UX or "native" (BSD).  That determines which syscall mapping
is used.  There is no need to have distinct name spaces this way.

Does no other Linux port provide native OS compatibility?


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HPUX binary compatibility
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Xref: news.gmane.org gmane.linux.ports.parisc:9609

  In message <199906211807.LAA29277@bart.allegro.com>you write:
  > > You really don't want to do that.  I strongly recommend against it.  In
  > 
  > (Presuming "that" is "have different system call numbers")
Correct.

  > You're "compatible" if you can run an HP-UX app "out of the box" (e.g.,
  > restore it and run).  If you have to run it through a translator of some ki
  > nd,
  > you aren't compatible.   (If the translator is part of the OS, and invoked 
  > automatically & invisibly, that's ok...been there, used that for 15 years 
  > on MPE)
The translator is entirely in the kernel.  It does not require hacking the
binary in any way shape or form.

  > Without such a mechanism, you can't tell the system calls apart.
Yes you can.  The exec headers have different magic #s  which you can use
to identify hpux vs bsd vs osf vs lites vs linux binaries.

If the process is not a linux process, then you look up the syscall number
in the appropriate translation table.  Similarly for signal #s, errno values,
etc.

I strongly recommend you actually look at the code Utah wrote.  It handles
hpux compatibility well enough to run X servers, compilers, shells, etc etc
right off an hpux distribution tape/cd.

jeff


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems with createheader.sh script
Date: Mon, 21 Jun 1999 14:35:16 -0400 (EDT)
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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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In-Reply-To: <199906211756.NAA10393@hiauly1.hia.nrc.ca> from "John David Anglin" at Jun 21, 99 01:56:26 pm
X-Mailer: ELM [version 2.4 PL25]
Xref: news.gmane.org gmane.linux.ports.parisc:9610

> 
> When creating a LIF image, i get the following errors:
> 
> ./boot_tools/createheader.sh boot_code/ipl ../../../../vmlinux
> ./boot_tools/createheader.sh: !: not found
> ./boot_tools/createheader.sh: !: not found
> (standard_in) 1: illegal character: J
> (standard_in) 1: parse error
> (standard_in) 1: parse error
> (standard_in) 1: parse error
> (standard_in) 1: illegal character: J
> IPL address: 4096       kernel address: 49152
> IPL size:  45056 Jun    kernel size:
> IPL entry: 4096         kernel entry: 32768
> Header created.

Here is a patch which fixes the above problems.  Note--there are still
issues related to the kernel parameters which need to be resolved.

I also recommend stripping the kernel after the map is generated to
reduce the size of the Image.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

*** createheader.sh.orig	Fri Jun 18 09:09:53 1999
--- createheader.sh	Mon Jun 21 14:26:19 1999
***************
*** 12,38 ****
  
  if [ $# != 2 ]; then
  	echo "Usage: createheader.sh ipl vmlinux"
  fi
  
! if ! [ -e ${ipl} ]; then
  	echo "Cannot open ${ipl}"
          exit 1
  fi
  
! if ! [ -e ${vmlinux} ]; then
  	echo "Cannot open ${vmlinux}"
          exit 1
  fi
  
  i_addr=4096
  
! if [ $arch = Linux ] ; then
! 	i_size=`ls -l ${ipl} |cut -c 36-42`
! 	k_size_initial=`ls -l ${vmlinux} |cut -c 36-42`
! elif [ $arch = HP-UX ]; then
!         i_size=`ls -l ${ipl} |cut -c 36-45`
! 	k_size_initial=`ls -l ${vmlinux} |cut -c 36-45`
! fi
  
  i_entry=4096
  k_addr=49152
--- 12,34 ----
  
  if [ $# != 2 ]; then
  	echo "Usage: createheader.sh ipl vmlinux"
+         exit 1
  fi
  
! if [ ! -r ${ipl} ]; then
  	echo "Cannot open ${ipl}"
          exit 1
  fi
  
! if [ ! -r ${vmlinux} ]; then
  	echo "Cannot open ${vmlinux}"
          exit 1
  fi
  
  i_addr=4096
  
! i_size=`ls -l ${ipl} |awk '{print $5}'`
! k_size_initial=`ls -l ${vmlinux} |awk '{print $5}'`
  
  i_entry=4096
  k_addr=49152
***************
*** 41,47 ****
  k_entry=32768
  
  echo "IPL address: ${i_addr}\tkernel address: ${k_addr} "
! echo "IPL size: ${i_size}\tkernel size: ${k_size} "
  echo "IPL entry: ${i_entry} \tkernel entry: ${k_entry}"
  ./boot_tools/mklifhdr hdr ${i_addr} ${i_size} ${i_entry} \
     ${k_addr} ${k_size} ${k_entry}
--- 37,43 ----
  k_entry=32768
  
  echo "IPL address: ${i_addr}\tkernel address: ${k_addr} "
! echo "IPL size: ${i_size}\t\tkernel size: ${k_size} "
  echo "IPL entry: ${i_entry} \tkernel entry: ${k_entry}"
  ./boot_tools/mklifhdr hdr ${i_addr} ${i_size} ${i_entry} \
     ${k_addr} ${k_size} ${k_entry}


From - Thu Nov 08 21:15:41 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Hack to head.S
Date: Mon, 21 Jun 1999 15:38:50 -0400 (EDT)
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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
Original-X-From: dave@hiauly1.hia.nrc.ca  Mon Jun 21 13:39:50 1999
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Xref: news.gmane.org gmane.linux.ports.parisc:9611

> It looks like the symbol __text_start can be used by main.c to
> determine the start of text when using the HP linker.

Here are two patches which appear to resolve this issue.  I have
tested linking with hpux 9.01.  Somebody needs to check whether
the symbol __text_start is available under 10.X and 11.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

*** init/main.c.orig	Tue Feb 16 16:02:22 1999
--- init/main.c	Mon Jun 21 15:27:00 1999
***************
*** 56,62 ****
  #error sorry, your GCC is too old. It builds incorrect kernels.
  #endif
  
! extern char _stext, _etext;
  extern char *linux_banner;
  
  extern int console_loglevel;
--- 56,63 ----
  #error sorry, your GCC is too old. It builds incorrect kernels.
  #endif
  
! extern char __text_start;
! extern char _etext;
  extern char *linux_banner;
  
  extern int console_loglevel;
***************
*** 1132,1138 ****
  	if (prof_shift) {
  		prof_buffer = (unsigned int *) memory_start;
  		/* only text is profiled */
! 		prof_len = (unsigned long) &_etext - (unsigned long) &_stext;
  		prof_len >>= prof_shift;
  		memory_start += prof_len * sizeof(unsigned int);
  		memset(prof_buffer, 0, prof_len * sizeof(unsigned int));
--- 1133,1139 ----
  	if (prof_shift) {
  		prof_buffer = (unsigned int *) memory_start;
  		/* only text is profiled */
! 		prof_len = (unsigned long) &_etext-(unsigned long)&__text_start;
  		prof_len >>= prof_shift;
  		memory_start += prof_len * sizeof(unsigned int);
  		memset(prof_buffer, 0, prof_len * sizeof(unsigned int));
*** arch/parisc/kernel/head.S.orig	Mon Jun 21 10:38:05 1999
--- arch/parisc/kernel/head.S	Mon Jun 21 13:06:43 1999
***************
*** 32,39 ****
  
  ;	.section .text
  
! 	.space $DATA$
! 	.subspa $FLUFFY$,QUAD=1,ALIGN=8,ACCESS=0x2C,SORT=56
  
  	.EXPORT stext,ENTRY,PRIV_LEV=3,RTNVAL=GR
  	.EXPORT _stext,DATA,PRIV_LEV=3,RTNVAL=GR
--- 32,39 ----
  
  ;	.section .text
  
! ;	.space $DATA$
! ;	.subspa $FLUFFY$,QUAD=1,ALIGN=8,ACCESS=0x2C,SORT=56
  
  	.EXPORT stext,ENTRY,PRIV_LEV=3,RTNVAL=GR
  	.EXPORT _stext,DATA,PRIV_LEV=3,RTNVAL=GR


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From: Stan Sieler <sieler@allegro.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HPUX binary compatibility
Date: Mon, 21 Jun 1999 13:49:43 -0700 (PDT)
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Re:

> Yow, that is an ambitious goal!  I can see the desirability of doing it
 
Yes...I've been trying to get MPE/iX to support HP-UX binaries via this
method for a number of years, but HP hasn't shown much interest.

The reason I like it is that it removes the slightly obscene distinction
of a "linux process" vs. "HP-UX process".

(MPE/iX, which also runs on PA-RISC, and which has an internal emulator
for the Classic (CISC) HP 3000 instruction set, was originally going to
have a similar distinction: Native Mode process vs. Compatibility Mode process ...
but people pointed out, quite correctly, that a process might want
to switch from NM to CM to NM ... so a process is just a process ... the
NM/CM mode is no longer a type of process.)

What does the MPE example have to do with Linux?  Everything...what happens
when your "linux process" wants to dynamically load code from an HP-UX
library?  Or vice versa?  What about shared libraries?

Take it from someone who's been there: having a "process type" isn't
a 100% solution.  Having non-overlapping system call mechanism (either
different numbers or a different address) provides a much closer to
100% solution.  You may still need to translate things to provide
data back to an HP-UX system call (e.g., process structure for pstat?),
but that's *doable* ... and the translator method won't get that far!

-- 
Stan Sieler                                          sieler@allegro.com
                                         http://www.allegro.com/sieler/


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From: Larry Dwyer <larry_dwyer@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HPUX binary compatibility
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At 07:40 PM 6/20/99 +0200, Matthew Wilcox wrote:
>
>How far do we want to or are we able to go with making constants identical
>between HPUX and Linux?
>
> ...
>The real thing which bothers me about this is that doing this means that
>HPUX and Linux are then allocating from the same numberspace, so where
>Linux has things which HPUX doesn't, HPUX might later allocate the same
>number for a different extension.
>

I would encourage converging the vector constants for Linux on PA with the
same constants for HP-UX on PA.

If there are some extra constants in Linux, I can arrange to have them
reserved in HP-UX.

Do not assume they are reserved until I post to this group (in other words,
every enq needs an ack).  It is best to send mail directly to me since I do
not read this mailing list as often as I ought to.


>(Of course, if HP want to add Linux binary compatibility to HPUX, now
>would be a great time to mention it :-)

Let's just say that we do not want to preclude binary compatibility at some
time in the future.


		Cheers,
		Larry


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Xref: news.gmane.org gmane.linux.ports.parisc:9614

On Mon, Jun 21, 1999 at 02:39:29PM -0700, Larry Dwyer wrote:
> I would encourage converging the vector constants for Linux on PA with the
> same constants for HP-UX on PA.
> 
> If there are some extra constants in Linux, I can arrange to have them
> reserved in HP-UX.
> 
> Do not assume they are reserved until I post to this group (in other words,
> every enq needs an ack).  It is best to send mail directly to me since I do
> not read this mailing list as often as I ought to.

That's perfect.  We're pretty flexible for the moment as we don't
have any userland yet.  There are 24 error codes defined in Linux which
are not defined in HPUX.  How about reserving the block from 129-192
for Linux error numbers?

(if you're interested, these are defined in linux/asm-parisc/errno.h).

I'm not entirely sure what to do about signals.  Linux has only one signal
which HP/UX does not -- SIGSTKFLT.  As I said, I reused _SIGGFAULT as
we don't have a use for it in Linux (yet?).  What do you think is the
right thing to do here?  I'm extremely reluctant to place it after the
realtime signals, or move the realtime signals, and there aren't any gaps
(unless you count _SIGRESERVE.  hmm.. but Linux has a SIGRESERVE too,
maybe that will get used officially one day.)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Xref: news.gmane.org gmane.linux.ports.parisc:9615

> I'm not entirely sure what to do about signals.  Linux has only one signal
> which HP/UX does not -- SIGSTKFLT.  As I said, I reused _SIGGFAULT as
> we don't have a use for it in Linux (yet?).  What do you think is the

I don't think we use SIGSTKFLT either do we ...


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On Tue, Jun 22, 1999 at 10:49:10AM +0100, Alan Cox wrote:
> > I'm not entirely sure what to do about signals.  Linux has only one signal
> > which HP/UX does not -- SIGSTKFLT.  As I said, I reused _SIGGFAULT as
> > we don't have a use for it in Linux (yet?).  What do you think is the
> 
> I don't think we use SIGSTKFLT either do we ...

Oh, you're right.

mrw@mencheca:/usr/src/parisc/linux$ find . -type f |xargs grep SIGSTKFLT
./include/asm-arm/signal.h:#define SIGSTKFLT    16
./include/asm-i386/signal.h:#define SIGSTKFLT   16
./include/asm-m68k/signal.h:#define SIGSTKFLT   16
./include/asm-parisc/signal.h:#define SIGSTKFLT 36
./include/asm-ppc/signal.h:#define SIGSTKFLT    16

So not only don't we currently use it, the alpha, mips, sparc and sparc64
ports don't have it.  Would a patch to remove it from all architectures
be accepted, do you think?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Martin Kasper Petersen <mkp@socsci.auc.dk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Getting back to the pdc prompt from Never Never Land
Date: 24 Jun 1999 19:42:00 +0200
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This is mostly for the HP guys, I guess...

When experimenting with booting and such I often end up with a hanging
kernel and have to reset the box manually to get back to the pdc
prompt.

Alex told me he'd heard about a magic keystroke that blasts you back
to the pdc prompt (Just like BRK will return you to OpenBoot on a
Sun).

Anyone care to enlighten me?


PS. I'm using a serial console.

-- 
Martin Kasper Petersen			BOFH, IC1&2, Aalborg University, DK
mailto:mkp@SunSITE.auc.dk		http://SunSITE.auc.dk/~mkp/


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Subject: Re: [parisc-linux] Getting back to the pdc prompt from Never Never Land
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Xref: news.gmane.org gmane.linux.ports.parisc:9618


If you have a remote access card, and its switched into service mode,
you can hit ^B.

Rich


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From: Mike Hibler <mike@fast.cs.utah.edu>
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Subject: Re:  [parisc-linux] Getting back to the pdc prompt from Never Never Land
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> To: parisc-linux@thepuffingroup.com
> From: Martin Kasper Petersen <mkp@socsci.auc.dk>
> Date: 24 Jun 1999 19:42:00 +0200
> Subject: [parisc-linux] Getting back to the pdc prompt from Never Never Land
> 
> This is mostly for the HP guys, I guess...
> 
> When experimenting with booting and such I often end up with a hanging
> kernel and have to reset the box manually to get back to the pdc
> prompt.
> 

What is your goal here?  You want to be able to reboot the machine remotely?
Or just reboot more gracefully than by cycling power?  Or reboot with some
debug info?  Or ...?

We have a couple of techniques to help debug or recover from hangs:

We catch the TOC trap and force a crash dump and reboot.  This way you can
push the little TOC button on the front/back of the machine and have the
machine take a dump and reboot.  This approach should work very early in
the kernel boot process provided you use the PDC to do the crash dump.
This is *not* what TOC was intended for and isn't what HP-UX does, so HP
people may not approve :-)

If you have an HIL, there is a "non-maskable" interrupt you can generate
via the keyboard (shift-reset? I don't remember any more...) and then do
a similar thing.  On the 68k boxes this was a real NMI, but on the PAs its
just a plain ole interrupt so it will not work if you hang with interrupts
masked.  It also only works if the keyboard is in "cooked" mode (i.e., you
don't have X running).

You can build or buy remote power-cycling boxes which are effectively just
a switch on the power cord that you control over an rs232 line.  APC (the
UPS people) makes one of these or you can build them from components.
This is what we use for our PC test boxes.

We have also used the "packet of death" approach, sending a magic packet
over the LAN to force a reboot.  Requires that the interface be up and
running and interrupts not masked of course.


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> We catch the TOC trap and force a crash dump and reboot.  This way you can
> push the little TOC button on the front/back of the machine and have the
> machine take a dump and reboot.  This approach should work very early in
> the kernel boot process provided you use the PDC to do the crash dump.
> This is *not* what TOC was intended for and isn't what HP-UX does, so HP
> people may not approve :-)

I don't understand --

Are you saying HP-UX doesn't use the TOC button to cause a dump and
reboot?  That's exactly what happens on HP-UX!

Rich


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Subject: [parisc-linux] Booting the Linux-Kernel....
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I'm forwarding this message from Helge, and I'm making sure that the
mailing list is fixed.

- Alex

-------- Original Message --------
Subject: Booting the Linux-Kernel.... !
Date: Fri, 25 Jun 1999 16:28:53 +0200
From: Helge Deller <helge.deller@ruhr-uni-bochum.de>
Reply-To: helge.deller@ruhr-uni-bochum.de
To: parisc-linux <parisc-linux@thepuffingroup.com>

Hi !

Ok, I commited my changes to the bootloader, so that we now can begin to
start with the real kernel-work.

My changes in the bootloader are not very impressive, and you can
consider it as a big, bad hack,
but it does its job (and that is what counts !!). Later we can try to
optimize it...

You have to build your vmlinux on HP-UX (with make vmlinux) and then do
"make Image".
Then you will find the bootable image in /arch/parisc/hp/boot/Image.

The new bootloader reads SOM-Files and places them to their
Origin-Address, which was given in the arch/parisc/Makefile (currently
at 0x80000) and we do not need anymore to write the exec-orgin into the
boot-Image (because it will be done by the linker).

Currently the only problem I have is, that "make dep" doesnt work with
my HP-UX-Machine, so I do "make dep" with my i386 and have the
Kernel-Tree (hosted on i386) connected via NFS from HP-UX. (Could maybe
someone take a look at this ?).
All compilations were done on HP-UX....

PS: You will see the kernel-banner, a spinng cursor and blinking LEDs,
really impressive :-)

Ok,
Thanks to you all !

Helge Deller.


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] GREAT NEWS: THE KERNEL REALLY BOOTS THE FIRST TIME !!!!!!!!!!
Date: Fri, 25 Jun 1999 11:29:34 -0400
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Forwarding this one on as well...

- Alex


-------- Original Message --------
Subject: GREAT NEWS: THE KERNEL REALLY BOOTS THE FIRST TIME !!!!!!!!!!
Date: Fri, 25 Jun 1999 15:49:26 +0200
From: Helge Deller <helge.deller@ruhr-uni-bochum.de>
To: parisc-linux <parisc-linux@thepuffingroup.com>

(PS:maybe this message appears 3 times - sorry, if that should
happen...)

Hi PA-RISC-FANS !

After some (really hard) hours of hacking :

!!!!!!!!!!!!!!!! I GOT THE KERNEL BOOTING !!!!!!!!!!!!!!!!!!!!!!!

Instructions: (as normal!)
make dep clean vmlinux
make Image

You can then find the bootable Image in arch/parisch/hp/boot/Image.

You will see the LEDs blinking !!!!!!!

Im SO HAPPY !
Let the hacking begin !
I will commit my changes in the next hour !

Many thanks to Jason Eckhard & Alex DeVries for their great first
implemenations of IPL/Makefiles !

Helge Deller,
Germany.


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I have had a similar problem on our production HP-UX systems. Running ls *
on a directory with a lot of files gives
ksh: /usr/bin/ls: arg list too long

To solve this problem you need to set the HP-UX kernel parameter
large_ncargs_enabled  1
and rebuild the HP-UX kernel.

Here is the information from HP Electronic Support Center:

Problem Description

What is the impact of changing the kernel parameter
"large_ncargs_enabled" from 0 to 1?

What is the meaning of this parameter?

Configuration Info

Operating System - HPUX
Version-
Hardware System - HP 9000
Series -

Solution
When large_ncargs_enabled is set to "1", it increases the default
"environment size" (the memory set aside to be your login
environment - to hold your PATH variable, etc.) from 20478 to
2048000. SAM doesn't have any info about this parm or any max/minvalue.

If you have been having trouble using an "rm *" on really big
directories (it was running out of environment space), the command
will work when you set it to 1.  Regarding system performance, it
will eat up extra memory (2 M vs. 20 K), but if you don't have too
many users and you have plenty of RAM, it shouldn't be a problem.

Ulrich
---------------------------------------------
Ulrich Strelow
<ulrich.strelow@schering.de or
ulrich_strelow@yahoo.com>
Berlin, Germany



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Subject: [parisc-linux] More on booting...
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Woo!  It worked for me too!


Here's the boot log, manually copied.


Reading parameters...done.
Size = 589824 bytes, location = 0x0002B040.
Loading kernel...
Kernel loaded at 0x00080000, size=0x0005c708
Data   loaded at 0x000DD000, size=0x00014000

Transferring control to kernel. (At entry point 0x00080000)

-----------------------------------------------------------------


Enter: parisc_stopkernel()

-----------------------------------------------------------------

Linux version 2.2.1 (root@crow) (gcc version egcs-2.91.60 19981201
(egcs-1.1.1 release)) #1
  Fri Jun 25 10:19:58 MDT 1999
PARISC/Linux haltet


I've uploaded my binary, which you can download from:
ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/Image-19990625-1


- Alex
-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Change the Makefile to use ./include instead of $(TOPDIR)/include for
the FINDPATH.  This shortens the arg list and make dep will work.

> 
> 
> 
> I have had a similar problem on our production HP-UX systems. Running ls *
> on a directory with a lot of files gives
> ksh: /usr/bin/ls: arg list too long
> 
> To solve this problem you need to set the HP-UX kernel parameter
> large_ncargs_enabled  1
> and rebuild the HP-UX kernel.
> 
> Here is the information from HP Electronic Support Center:
> 
> Problem Description
> 
> What is the impact of changing the kernel parameter
> "large_ncargs_enabled" from 0 to 1?
> 
> What is the meaning of this parameter?
> 
> Configuration Info
> 
> Operating System - HPUX
> Version-
> Hardware System - HP 9000
> Series -
> 
> Solution
> When large_ncargs_enabled is set to "1", it increases the default
> "environment size" (the memory set aside to be your login
> environment - to hold your PATH variable, etc.) from 20478 to
> 2048000. SAM doesn't have any info about this parm or any max/minvalue.
> 
> If you have been having trouble using an "rm *" on really big
> directories (it was running out of environment space), the command
> will work when you set it to 1.  Regarding system performance, it
> will eat up extra memory (2 M vs. 20 K), but if you don't have too
> many users and you have plenty of RAM, it shouldn't be a problem.
> 
> Ulrich
> ---------------------------------------------
> Ulrich Strelow
> <ulrich.strelow@schering.de or
> ulrich_strelow@yahoo.com>
> Berlin, Germany
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] Booting from CD...
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How do PA RISC machines manage booting from CD?  How does one create
such a CD?

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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In-Reply-To: <3773E26E.164B31F5@thepuffingroup.com> from "Alex deVries" at Jun 25, 99 04:11:26 pm
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> How do PA RISC machines manage booting from CD?  How does one create
> such a CD?

I am not sure exactly but you could try just writing the LIF image
to the CD.  Because HP's IPL can boot from a hpux file system, a PA
machine can probably also boot from a CD with a hpux file system
on it.  I doubt HP machines can boot from an ISO 9660 CD.

Most CD writing software has a mode that allows copying a binary
image file to a CD.  There are some issues regarding CD sector
size.  You want the image to be an integral number of CD sectors.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] Booting from CD...
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Alex deVries wrote:
> 
> How do PA RISC machines manage booting from CD?  How does one create
> such a CD?

I am doing that as I read your post.  The Ignite-UX toolkit available on
software.hp.com has the tools to do this.  See make_medialif.  I make a
HFS file images that have Ignite golden images and SD software depots.
make_medialif creates the LIF file with the INSTALL boot and Ignite
config stuff. The instl_combine command wraps the LIF file containing
the INSTLALL kernel and INSTALLFS filesystem around my HFS image file. I
then use cdrecord to write the whole enchilada to CD-R.   

Matt
--
Matt Earley  nortelnetworks.com


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More good news from Helge...  I've also committed a few small fixes.

>From what I know, the descriptions in machines.h (which I transcribed on
a bus from Montreal to Ottawa in March) are reasonably up to date.

- Alex

-------- Original Message --------
Subject: new commits for the kernel
Date: Sat, 26 Jun 1999 04:00:03 +0200
From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
To: Alex deVries <adevries@thepuffingroup.com>

Hi again.

I have committed again some changes, so that the kernel now uses the
real
linux-console-code, and at start it shows you the name of the machine
(mine is: Mirage Jr. (715/64)).
If your machine-name isnt shown, take a look into machines.c &
setup.c..... esp. identification-code for PA2.x-Machines could be
updated.

The code for getcpu_info() [proc-fs] is also implemented.

Bye,
Helge Deller.


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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] parisc-linux-ld
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Hi Alex !

Could maybe someone make me a patched "parisc-linux-ld" binary, where I
can do

parisc-linux-ld -R xyz -N        ( or any other letter for -R)

where xyz should be the origin of the ELF-binary, which is currently
0x2000 as seen in the mapfile ? (or is there any other possibility,
because -R at GNU-ld is not used for origin, but for symbol-names...).

If I would have such an patched linker, I maybe could try make the
cross-compiled ELF-binary bootable.....

Helge Deller..

--
---------------------------------------
 Mailto:deller@gmx.de
 ICQ# 2046114
---------------------------------------




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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: [parisc-linux] Dino and Lasi
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Okay, I've committed some small changes to dino and lasi that can easily
be backed out.

some questions:

- what IRQ are we going to run LASI on?  Is that something we just pick
and hard code?

- I changed lasi.c and dino.c to only use readl() and writel(), and not
readb and writew, etc.  Was this a mistake?

- We really really need the IRQ bottom halfs setup.  Any takers?

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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> If I would have such an patched linker, I maybe could try make the
> cross-compiled ELF-binary bootable.....

Work has started to rewrite the hppa elf tools (gcc and binutils).
However, Jeff Law has indicated that the relocations done by ld
have a lot of bugs.  He has strongly recommended that the elf tools
not be used until the rewrite is complete.  However, having said
that, it would be useful to develop an ipl that could load an elf
kernel.

With ld, the text origin can be set with "-Ttext address" or using
a loader script (see arch/parisc/hp/vmlinux.lds).  The headers
describing the elf format can be found in binutils/include/elf.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Anyone got a few moments?
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Which of the people involved in this project know PA-RISC assembler?

We need xchg() written (in include/asm-parisc/system.h) before the
networking will compile.  We're going to need other stuff written too of
course; I know ARM assembler, so I guess I could probably learn PA-RISC
asm if no-one else wants to.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Dino and Lasi
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Alex deVries wrote:
> 
> 
> Okay, I've committed some small changes to dino and lasi that can easily
> be backed out.
> 
> some questions:
> 
> - what IRQ are we going to run LASI on?  Is that something we just pick
> and hard code?

Isn't LASI a PA (ie GSC bus) device?
If so, it can use any EIRR bit/HPA pair supported by the PA processor code.
It needs to register an ISR with PA interrupt code and get the EIRR/HPA
pair (commonly called EIM value).

Same is true for Dino.

> - I changed lasi.c and dino.c to only use readl() and writel(), and not
> readb and writew, etc.  Was this a mistake?

For Dino, I think so. On a reads, it shouldn't matter unless the
reads have side effects (eg. clears the byte register). On writes
too many byte enables will be set.

BTW, I assume you are talking about PCI MMIO/Port/Cfg space accessor
functions.

> - We really really need the IRQ bottom halfs setup.  Any takers?

What do you mean "bottom half"?
dino_isr() to map DINO EIM registers to PCI IRQ lines (and thus
PCI device ISRs)?

grant

Grant Grundler
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Anyone got a few moments?
Date: Mon, 28 Jun 1999 10:09:16 -0700
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Matthew Wilcox wrote:
> 
> Which of the people involved in this project know PA-RISC assembler?
> 
> We need xchg() written (in include/asm-parisc/system.h) before the
> networking will compile.  We're going to need other stuff written too of
> course; I know ARM assembler, so I guess I could probably learn PA-RISC
> asm if no-one else wants to.

What does xchg() do?

If it's a byte swapper, look at "PA-RISC 2.0 Architecture", by Gerry Kane
from HP Professionl books, page I-6. That's "Programming Notes" section.
Gives examples for "Endian byte swapping" for 32 and 64-bit quantities.
They work - HP-UX is using them.

grant


Grant Grundler
Enterprise Systems Technology Lab
+1.408.447.7253


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Subject: Re: [parisc-linux] Anyone got a few moments?
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Xref: news.gmane.org gmane.linux.ports.parisc:9636

On Mon, Jun 28, 1999 at 10:09:16AM -0700, Grant Grundler wrote:
> Matthew Wilcox wrote:
> > 
> > Which of the people involved in this project know PA-RISC assembler?
> > 
> > We need xchg() written (in include/asm-parisc/system.h) before the
> > networking will compile.  We're going to need other stuff written too of
> > course; I know ARM assembler, so I guess I could probably learn PA-RISC
> > asm if no-one else wants to.
> 
> What does xchg() do?

/*
 * Atomic [test&set] exchange
 *
 *      void *xchg_u32(void *ptr, unsigned long val)
 * Changes the memory location '*ptr' to be val and returns
 * the previous value stored there.
 */

It's atomic with respect to interrupts and other CPUs.

PA-RISC 2.0 seems to have LDC{W,D}, but that's going to make implementation
a real pain.

> If it's a byte swapper, look at "PA-RISC 2.0 Architecture", by Gerry Kane
> from HP Professionl books, page I-6. That's "Programming Notes" section.
> Gives examples for "Endian byte swapping" for 32 and 64-bit quantities.
> They work - HP-UX is using them.

thanks for the tip.  No-one's written those yet; I'll do those next.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: Re: [parisc-linux] Dino and Lasi
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Xref: news.gmane.org gmane.linux.ports.parisc:9637

> What do you mean "bottom half"?
> dino_isr() to map DINO EIM registers to PCI IRQ lines (and thus
> PCI device ISRs)?

The Linux bottom halves are closest in 'other unixen' to the software interrupt
code run after the IRQ return.

Linux services any pending bottom halves after the irq completes but before
returning to the scheduled task/scheduler. Its used for deferring processing
from interrupt paths



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Subject: Re: [parisc-linux] Anyone got a few moments?
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On Mon, Jun 28, 1999 at 11:47:56AM -0600, Jeffrey A Law wrote:
> Yes.  Major pain since the only useful atomic operations are load & clear
> word/double as you noted.

That does seem to be the majority of uses (based on a grep).  But not all
are, unfortunately:

./drivers/net/slip.c:   rbuff = xchg(&sl->rbuff, rbuff);
./drivers/net/slip.c:   xbuff = xchg(&sl->xbuff, xbuff);
./drivers/net/slip.c:   cbuff = xchg(&sl->cbuff, cbuff);
./drivers/net/slip.c:   slcomp = xchg(&sl->slcomp, slcomp);
./drivers/net/slip.c:   xbuff    = xchg(&sl->xbuff, xbuff);
./drivers/net/slip.c:   rbuff    = xchg(&sl->rbuff, rbuff);
./drivers/net/slip.c:   cbuff    = xchg(&sl->cbuff, cbuff);
./drivers/scsi/scsi_queue.c:    cpnt = xchg(&host->pending_commands, cmd);
./drivers/scsi/scsi_queue.c:    cmd = xchg(&host->pending_commands, cpnt);
./fs/smbfs/sock.c:      data_ready = xchg(&sk->data_ready, smb_data_callback);
./fs/smbfs/sock.c:      data_ready = xchg(&sk->data_ready, server->data_ready);
./kernel/sys.c: mask = xchg(&current->fs->umask, mask & S_IRWXUGO);
./mm/slab.c:    if (xchg((unsigned long *)objp, SLAB_RED_MAGIC2) != SLAB_RED_MAG
IC1)
./mm/slab.c:    if (xchg((unsigned long *)(objp+cachep->c_org_size), SLAB_RED_MA
GIC2) != SLAB_RED_MAGIC1)
./mm/slab.c:    if (xchg((unsigned long *)objp, SLAB_RED_MAGIC1) != SLAB_RED_MAG
IC2) {
./mm/slab.c:    if (xchg((unsigned long *)(objp+cachep->c_org_size+BYTES_PER_WOR
D), SLAB_RED_MAGIC1) != SLAB_RED_MAGIC2) {
./net/core/utils.c:     toks += now - xchg(&last_msg, now);
./net/ipv4/ip_forward.c:                        dst_release(xchg(&skb->dev->fast
path[h], dst_clone(&rt->u.dst)));
./net/ipv4/ip_sockglue.c:                       opt = xchg(&sk->opt, opt);
./net/ipv4/tcp_ipv4.c:  dst_release(xchg(&sk->dst_cache, rt));
./net/ipv4/tcp_ipv4.c:          dst_release(xchg(&sk->dst_cache, &rt->u.dst));
./net/ipv6/ipv6_sockglue.c:             opt = xchg(&np->opt, opt);
./net/ipv6/tcp_ipv6.c:                          skb = xchg(&sk->net_pinfo.af_ine
t6.pktoptions, skb2);
./net/sched/cls_rsvp.h:                 tcf_police_release(xchg(&f->police, poli
ce));
./net/sched/cls_u32.c:          ht_down = xchg(&n->ht_down, ht_down);
./net/sched/cls_u32.c:          tcf_police_release(xchg(&n->police, police));
./net/sched/sch_cbq.c:          if ((*old = xchg(&cl->q, new)) != NULL)
./net/sched/sch_cbq.c:                  rtab = xchg(&cl->R_tab, rtab);
./net/sched/sch_generic.c:      qdisc = xchg(&dev->qdisc, &noop_qdisc);
./net/sched/sch_prio.c: *old = xchg(&q->queues[band], new);
./net/sched/sch_teql.c:         teql_neigh_release(xchg(&q->ncache, n));


and that's it.  That's only 31 uses where xchg couldn't be replaced
with get_and_zero.  I suspect most of these are using this mechanism to
walk a list without using a spinlock.  The slab uses are debug code only
(so they aren't performance critical by any means).  I bet most of these
uses could be removed without _too_ many problems.  I wonder what Linus'
opinion is on this.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: Re: [parisc-linux] Anyone got a few moments?
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Xref: news.gmane.org gmane.linux.ports.parisc:9639

  In message <19990628193404.I30362@mencheca.ch.genedata.com>you write:
  > > What does xchg() do?
  > 
  > /*
  >  * Atomic [test&set] exchange
  >  *
  >  *      void *xchg_u32(void *ptr, unsigned long val)
  >  * Changes the memory location '*ptr' to be val and returns
  >  * the previous value stored there.
  >  */
  > 
tsk tsk, that is a highly non-portable API for atomic operations.

  > It's atomic with respect to interrupts and other CPUs.
  > 
  > PA-RISC 2.0 seems to have LDC{W,D}, but that's going to make implementation
  > a real pain.
Yes.  Major pain since the only useful atomic operations are load & clear
word/double as you noted.

Why does linux want an "exchange"-like API for atomic operations?  That
just seems totally weird and stupid.


jeff





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Subject: Re: [parisc-linux] Anyone got a few moments?
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Xref: news.gmane.org gmane.linux.ports.parisc:9640

> Yes.  Major pain since the only useful atomic operations are load & clear
> word/double as you noted.
> 
> Why does linux want an "exchange"-like API for atomic operations?  That
> just seems totally weird and stupid.

Its very very efficient if you have an exchange operation or you have
ll/sc. Most platforms Linux runs on have these.

Alan


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To: Matthew.Wilcox@genedata.com (Matthew Wilcox)
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In-Reply-To: <19990628201016.J30362@mencheca.ch.genedata.com> from "Matthew Wilcox" at Jun 28, 99 08:10:16 pm
Xref: news.gmane.org gmane.linux.ports.parisc:9641

> > Yes.  Major pain since the only useful atomic operations are load & clear
> > word/double as you noted.
> 
> and that's it.  That's only 31 uses where xchg couldn't be replaced
> with get_and_zero.  I suspect most of these are using this mechanism to
> walk a list without using a spinlock.  The slab uses are debug code only
> (so they aren't performance critical by any means).  I bet most of these
> uses could be removed without _too_ many problems.  I wonder what Linus'
> opinion is on this.

The sparc only has swap byte with 0xFF. They also have to use a small spinlock
for doing 32/64bit xchg ops. Thats ok. Xchg is only hopefully fast - since
on most machines xchg is a bus locker or pushes to ram the difference will
be minimal. 

The Alpha/Mips probably have it the nicest with the load locked/conditional
store.


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Xref: news.gmane.org gmane.linux.ports.parisc:9642

On Mon, Jun 28, 1999 at 07:37:05PM +0100, Alan Cox wrote:
> > > Yes.  Major pain since the only useful atomic operations are load & clear
> > > word/double as you noted.
> > 
> > and that's it.  That's only 31 uses where xchg couldn't be replaced
> > with get_and_zero.  I suspect most of these are using this mechanism to
> > walk a list without using a spinlock.  The slab uses are debug code only
> > (so they aren't performance critical by any means).  I bet most of these
> > uses could be removed without _too_ many problems.  I wonder what Linus'
> > opinion is on this.
> 
> The sparc only has swap byte with 0xFF. They also have to use a small spinlock
> for doing 32/64bit xchg ops. Thats ok. Xchg is only hopefully fast - since
> on most machines xchg is a bus locker or pushes to ram the difference will
> be minimal. 

Okay.  Do you think we stand a chance of pushing a new call past linux
-- get_and_zero(*ptr), as this will make most of the calls efficient
on PA-RISC?  Or would a better idea be to check if the argument to be
swapped is zero; if it is use the special instructions; if not fall back
to a spinlock?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Anyone got a few moments?
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To: Matthew.Wilcox@genedata.com (Matthew Wilcox)
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Xref: news.gmane.org gmane.linux.ports.parisc:9643

> Okay.  Do you think we stand a chance of pushing a new call past linux
> -- get_and_zero(*ptr), as this will make most of the calls efficient
> on PA-RISC?  Or would a better idea be to check if the argument to be
> swapped is zero; if it is use the special instructions; if not fall back
> to a spinlock?

For now I'd get it working with xchg() - the zero check isnt worth it. Get
it going the stupid way then worry


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From: Davin Petersen <davinp@celltech.com>
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Subject: [parisc-linux] H60
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I've looked through the available documentation available at
http://thepuffingroup.com/parisc/documentation.html and see nothing
related to the 9000/800 H60.  Am I wrong?  Would it be useful in
developing the HP9K kernel?


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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: [parisc-linux] H60
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Re:
> related to the 9000/800 H60.  Am I wrong?  Would it be useful in
> developing the HP9K kernel?

It's the same as a G60 (96 MHz, PA7100, HP-PB, 2048 KB cache)
Also same as I60.

Of course, I don't know if either of those are in the docs :) 

-- 
Stan Sieler                                          sieler@allegro.com
                                         http://www.allegro.com/sieler/


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: [parisc-linux] H60
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Stan Sieler wrote:
> 
> Re:
> > related to the 9000/800 H60.  Am I wrong?  Would it be useful in
> > developing the HP9K kernel?
> 
> It's the same as a G60 (96 MHz, PA7100, HP-PB, 2048 KB cache)
> Also same as I60.
> 
> Of course, I don't know if either of those are in the docs :)

First, yes, the goal is to have it running on the G60/I60 and H60.

However, HP's only released documentation for a certain subset of the
machines available. 

The 7100 CPU shouldn't be too difficult, it's what's in a lot of 712s. 
What kind of peripheral devices are in the G/H/I60?

It'd be good if we could start a document that contained a list of the
internal chips we're finding in all these machines.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Re:

> The 7100 CPU shouldn't be too difficult, it's what's in a lot of 712s. 
> What kind of peripheral devices are in the G/H/I60?

SCSI disk, SCSI DDS, SCSI CDROM, and (less commonly) HPIB disk, and (rarely)
HPIB DDS, and (possible, but not seen) HPIB CDROM.

Various terminal muxes.
 
> It'd be good if we could start a document that contained a list of the
> internal chips we're finding in all these machines.
 
This may be of interest...a spreadsheet maintained by Michael Hensley
http://www.allegro.com/HPPA_Systems.xls

It has a number of HP 9000 (and HP 3000) models, with speed and chip info.

-- 
Stan Sieler                                          sieler@allegro.com
                                         http://www.allegro.com/sieler/


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/33
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I'd just like to let people know that I've built myself a kernel against
the current CVS tree and it boots on my 715/33 (using rbootd):

PARISC/Linux Bootstrap Version 0.4 (non-interactive)
By Helge Deller & Jason Eckhardt
Built Mon Jun 28 16:30:57 METDST 1999 by willy@bmw

Reading parameters...done.

Loading SOM-Kernel...
Kernel loaded at 0x00010000, size=0x00062008
Data   loaded at 0x00073000, size=0x0001D000
BSS-Data      at 0x00090000, size=0x0000f530 (initialized with 0x00000000)

Transferring control to kernel. (At entry point 0x00010000)


The Kernel has started...
You are running a 33MHz PA-RISC-Machine with 56MB of RAM.
First free address was 0x0009f530 (This is the base of the stack).
Stacksize = 0x00040000.
First free User-Memory starts now at address 0x000df530 and ends at 0x03800000.

Linux version 2.2.1 (willy@bmw) (gcc version egcs-2.91.60 19981201 (egcs-1.1.1
release)) #18
 Wed Jun 30 05:46:53 METDST 1999

at which point it hangs and I have to reset.  Excellent work.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Matthew Wilcox wrote:

> Linux version 2.2.1 (willy@bmw) (gcc version egcs-2.91.60 19981201 (egcs-1.1.1
> release)) #18
>  Wed Jun 30 05:46:53 METDST 1999
> 
> at which point it hangs and I have to reset.  Excellent work.

Well, not a bad start, but what worries me is that this boot sequence
should really go on a bit more.  I'm not quite sure where the problem
is, it might be with some PDC calls we do within setup_arch().

I'll upload a binary of the kernel that I know works on my A class.  I'd
appreciate it if people could email tests of this on different machines.


- Alex
-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Mike Hibler <mike@fast.cs.utah.edu>
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Subject: Re: [parisc-linux] H60
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If the H seiries machines really have HP-PB, then it is going to take
some work.  The HP-PB that I am familiar with (from back in the hp832 days)
is a whole other bus architecture that isn't nearly as pleasent to work with
as the at on the 700 series machines.


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Take a look at  /usr/lib/sched.models on HP-UX -- it documents quite a few
models and PA-RISC versions.

Rich

----- Original Message -----
From: Alex deVries <adevries@thepuffingroup.com>
To: Stan Sieler <sieler@allegro.com>
Cc: Davin Petersen <davinp@celltech.com>; <parisc-linux@thepuffingroup.com>
Sent: Tuesday, June 29, 1999 5:43 PM
Subject: Re: [parisc-linux] H60



[...]
> It'd be good if we could start a document that contained a list of the
> internal chips we're finding in all these machines.
>
> - Alex



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Rich Rauenzahn wrote:
> 
> Take a look at  /usr/lib/sched.models on HP-UX -- it documents quite a few
> models and PA-RISC versions.
> 

Oh, that's pretty interesting.  I found sched.modules in
/usr/sam/lib/mo.

What's the second column?

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Apparently it exists in quite a few places!

The second column is the PA-RISC version number.  I'm not sure how
significant the letters are in the version numbers.

> Rich Rauenzahn wrote:
> > 
> > Take a look at  /usr/lib/sched.models on HP-UX -- it documents quite a few
> > models and PA-RISC versions.
> > 
> 
> Oh, that's pretty interesting.  I found sched.modules in
> /usr/sam/lib/mo.
> 
> What's the second column?
> 
> - Alex


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On Tue, Jun 29, 1999 at 10:31:09PM -0400, Alex deVries wrote:
> 
> Matthew Wilcox wrote:
> 
> > Linux version 2.2.1 (willy@bmw) (gcc version egcs-2.91.60 19981201 (egcs-1.1.1
> > release)) #18
> >  Wed Jun 30 05:46:53 METDST 1999
> > 
> > at which point it hangs and I have to reset.  Excellent work.
> 
> Well, not a bad start, but what worries me is that this boot sequence
> should really go on a bit more.  I'm not quite sure where the problem
> is, it might be with some PDC calls we do within setup_arch().

It fails before it gets that far (what a joy it is to have a working
printk..):

in arch/parisc/kernel/setup.c
__initfunc(void setup_arch(char **cmdline_p,
        unsigned long * memory_start_p, unsigned long * memory_end_p))
{
        char cpuinfo_text[2000];
printk("setup_arch(%p, %p, %p)\n", cmdline_p, memory_start_p, memory_end_p);
printk("-3\n");
printk("%p\n", *cmdline_p);
printk("%s\n", *cmdline_p);
        strcpy(*cmdline_p,saved_command_line);  // copy the command-line
printk("-2\n");

I get the following printout:

setup_arch(000a0860, 000767e0, 000767e4)
-3
f000013c
 zC

and there it hangs.

> I'll upload a binary of the kernel that I know works on my A class.  I'd
> appreciate it if people could email tests of this on different machines.

When you put it up, I'll happily test it; maybe my kernel is larger than
yours and is causing something to be overwritten?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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> printk("-3\n");
> printk("%p\n", *cmdline_p);
> printk("%s\n", *cmdline_p);
>         strcpy(*cmdline_p,saved_command_line);  // copy the command-line
> printk("-2\n");
> 
> I get the following printout:
> 
> setup_arch(000a0860, 000767e0, 000767e4)
> -3
> f000013c
>  zC

f000013c is in I/O space. Is the command line really meant to point into
I/O space..


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In-Reply-To: <377A21E9.C22A6F25@gmx.de>; from Helge Deller on Wed, Jun 30, 1999 at 03:55:53PM +0200
Xref: news.gmane.org gmane.linux.ports.parisc:9656

On Wed, Jun 30, 1999 at 03:55:53PM +0200, Helge Deller wrote:
> Alan Cox wrote:
> 
> > > printk("-3\n");
> > > printk("%p\n", *cmdline_p);
> > > printk("%s\n", *cmdline_p);
> > >         strcpy(*cmdline_p,saved_command_line);  // copy the command-line
> > > printk("-2\n");
> > >
> > > I get the following printout:
> > >
> > > setup_arch(000a0860, 000767e0, 000767e4)
> > > -3
> > > f000013c
> > >  zC
> >
> > f000013c is in I/O space. Is the command line really meant to point into
> > I/O space..
> 
> It was completely wrong to use strcpy() !
> Sorry, my fault !!!!!
> It is now corrected in CVS.

So it is.  Thank you very much.

Has the price of beef gone up?
[if you've not booted the kernel, there's no way you'll understand this :-)]

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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> Has the price of beef gone up?
> [if you've not booted the kernel, there's no way you'll understand this :-)]
you could, of course, read the source code as well ...


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From: Davin Petersen <davinp@celltech.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] H60
Date: Wed, 30 Jun 1999 08:54:34 -0700
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Yep, my H60 is all HP-PB.  The series number on the back is an 827s, but
it had a back plane upgrade several years ago to a 887 (H60).  This
particular box has:

2	10Base-2 w/ AUI			28640-60001
1	FWD SCSI				28696-60001
1	SE SCSI/Parallel/MUX		A1703-60022
1	HP6000 Disk Array (RAID5)	C4230A
5	2G disks for the 6000		C2431A
2	1G internal disks
1	HP35480A	DDS tape
1	HP35470A	DDS tape		(one of these is DDS2,
the other is DDS3)
1	External CDROM (SE)		C2948A
1	700/92 Terminal (green, yech)	

-----Original Message-----
From: Mike Hibler [mailto:mike@fast.cs.utah.edu]
Sent: Tuesday, June 29, 1999 10:20 PM
To: adevries@thepuffingroup.com; sieler@allegro.com
Cc: parisc-linux@thepuffingroup.com
Subject: Re: [parisc-linux] H60


If the H seiries machines really have HP-PB, then it is going to take
some work.  The HP-PB that I am familiar with (from back in the hp832
days)
is a whole other bus architecture that isn't nearly as pleasent to work
with
as the at on the 700 series machines.

------------------------------------------------------------------------
---
To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com
with
`unsubscribe' as the subject.


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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: [parisc-linux] H60
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Re:

> Yep, my H60 is all HP-PB.  The series number on the back is an 827s, but
> it had a back plane upgrade several years ago to a 887 (H60).  This

Not that it matters much, but the 887 encompasses the G50/H50/I50 ...
all of which are 96 MHz machines with 512 KB cache, PA-7100 with the
PCX-T chipset).  The G60/H60/I60 appear to be slightly different (2 MB
cache, and the "PCX-T" doesn't seem to appear in HP literature). 
Still, the I/O is the same for the 887/G50/H50/I50/G60/H60/I60.

It would be interesting to see what "uname -i" reports on a "real" G60/H60/I60...
will it be 887 or ?

-- 
Stan Sieler                                          sieler@allegro.com
                                         http://www.allegro.com/sieler/


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From: Davin Petersen <davinp@celltech.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] H60
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uname -i returns:
900807201

uname -a returns:
HP-UX max B.10.20 A 9000/887 900807201 two-user license

-----Original Message-----
From: Stan Sieler [mailto:sieler@allegro.com]
Sent: Wednesday, June 30, 1999 10:27 AM
To: davinp@celltech.com
Cc: parisc-linux@thepuffingroup.com
Subject: Re: [parisc-linux] H60


Re:

> Yep, my H60 is all HP-PB.  The series number on the back is an 827s,
but
> it had a back plane upgrade several years ago to a 887 (H60).  This

Not that it matters much, but the 887 encompasses the G50/H50/I50 ...
all of which are 96 MHz machines with 512 KB cache, PA-7100 with the
PCX-T chipset).  The G60/H60/I60 appear to be slightly different (2 MB
cache, and the "PCX-T" doesn't seem to appear in HP literature). 
Still, the I/O is the same for the 887/G50/H50/I50/G60/H60/I60.

It would be interesting to see what "uname -i" reports on a "real"
G60/H60/I60...
will it be 887 or ?

-- 
Stan Sieler                                          sieler@allegro.com
                                         http://www.allegro.com/sieler/


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test...


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From: Kirk Bresniker <kirkb@chrome.rose.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] H60
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The letter in the [GHI][567] systems refers to the number of I/O slots
on the backplane. The number designates the processor board. The

50 = Uni 96MHz PA-7100, 256K I$, 256K D$
60 = Uni 96MHz PA-7100, 1024K I$, 1024K D$
70 = Dual 96MHz PA-7100, 1024K I$, 1024K D$ per processor

I wrote an article in the HP Journal about the I70 development, which
has block diagrams which descibe the system at a high level.

PA-RISC Symmetric Multiprocessing in Midrange Servers 
  http://www.hp.com/hpj/94jun/jun94_31.pdf

KMB
--
+============================================================+
|       Kirk Bresniker    	(916) 785-5677		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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From: "Kevin Carson" <Kevin_Carson@hp-canada-om1.om.hp.com>
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Subject: Re: [parisc-linux] H60
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As I understand it,

second column consists of the PA-RISC instruction set revision (1.0, 1.1, or
2.0) and the letter indicates what type of CPU is running that revision in
the respective
box (CPU models being also the third column).

The point of all this is that the HP ANSI compiler takes both a instruction
revision the object code is targeted towards (the most portable being the
older revision 1.0 since all the revisions are backward compatible) and a
hint about which implementation the instruction scheduling optimizations
should be targeting (which does affect compatability in any way).

How much difference does the letter portion really make? From practical
experience not much, but it could!  Which is the point of maintaining this
file in the first place.  The instruction set revision makes a BIG
difference for later chips.

Kevin

-----Original Message-----
From: rrauenza@cup.hp.com <rrauenza@cup.hp.com>
To: adevries@thepuffingroup.com <adevries@thepuffingroup.com>
Cc: rrauenza@cup.hp.com <rrauenza@cup.hp.com>;
parisc-linux@thepuffingroup.com <parisc-linux@thepuffingroup.com>
Date: Tuesday, June 29, 1999 11:55 PM
Subject: Re: [parisc-linux] H60


>
>Apparently it exists in quite a few places!
>
>The second column is the PA-RISC version number.  I'm not sure how
>significant the letters are in the version numbers.
>
>> Rich Rauenzahn wrote:
>> >
>> > Take a look at  /usr/lib/sched.models on HP-UX -- it documents quite a
few
>> > models and PA-RISC versions.
>> >
>>
>> Oh, that's pretty interesting.  I found sched.modules in
>> /usr/sam/lib/mo.
>>
>> What's the second column?
>>
>> - Alex
>
>---------------------------------------------------------------------------
>To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
>`unsubscribe' as the subject.
>


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June 29, 1999
	Cygnus Solutions has donated hpux11 support. (Note that this will
	not yet be included in gcc 2.95.) 

Is this at all related to the ELF64 work?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: Re: [parisc-linux] Cygnus announces HP/UX-11 support
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  In message <19990702000851.A30362@mencheca.ch.genedata.com>you write:
  > 
  > June 29, 1999
  > 	Cygnus Solutions has donated hpux11 support. (Note that this will
  > 	not yet be included in gcc 2.95.) 
  > 
  > Is this at all related to the ELF64 work?
Not really.  That is 32bit hpux11 support.

I am working on 64bit hpux11 support, but don't expect that code to show up
until late in '99.

jeff


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From: Davin Petersen <davinp@celltech.com>
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Subject: [parisc-linux] Booting the kernel
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After downloading the goodies available from the FTP site I gather that
rbootd is the way to spit the linux kernel to a HP box.  Am I wrong?  Is
there no way of using the ISL?  I tried using the ISL (on my H60), got
an error message and was dumped back to the ISL prompt.


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Xref: news.gmane.org gmane.linux.ports.parisc:9667

On Thu, Jul 01, 1999 at 03:41:40PM -0700, Davin Petersen wrote:
> After downloading the goodies available from the FTP site I gather that
> rbootd is the way to spit the linux kernel to a HP box.  Am I wrong?  Is
> there no way of using the ISL?  I tried using the ISL (on my H60), got
> an error message and was dumped back to the ISL prompt.

rbootd is the way for older machines like my 715.  Later models like
the A180 tftp their kernel, I think you need bootparamd set up as well.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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On Fri, Jul 02, 1999 at 12:56:13AM +0200, Matthew Wilcox wrote:
> rbootd is the way for older machines like my 715.  Later models like
> the A180 tftp their kernel, I think you need bootparamd set up as well.

for the A180 you need a proper setup bootpd/tftpd combo.

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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Subject: Antwort: [parisc-linux] Booting the kernel
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I have successfully compiled the 990628 snapshot of the CVS tree on my
715/33. After make vmlinux you get the file /usr/src/linux/vmlinux which is
a "PA-RISC1.1 executable -not stripped". After make Image you get the file
/usr/src/linux/arch/parisc/boot/Image which is a "lif file".  You can copy
vmlinux to /stand and use hpux (the HP-UX secondary system loader) to boot
that file instead of booting via rbootd. I have tried it that way:

1. Switch on the machine.
2. Press the ESC key to stop autoboot.
3. Boot from the primary path and specify to "interact with ISL" to get the
ISL prompt.
4. use hpux to load vmlinux
   hpux disc(2/0/1.6.0;0)/stand/vmlinux
             2/0/1.6.0                   is the hardware path to the boot
disk
                      ;0                 stands for section 0 which means
whole disk or LVM
                        /stand/vmlinux   is the kernel file to boot

Ulrich
---------------------------------------------
Ulrich Strelow
<ulrich.strelow@schering.de or
ulrich_strelow@yahoo.com>
Berlin, Germany







Davin Petersen <davinp@celltech.com> am 02.07.99 00:41:40


An:   parisc-linux@thepuffingroup.com
Kopie:     (Blindkopie: Ulrich Strelow/BE/USR/SHG)


Thema:    [parisc-linux] Booting the kernel





After downloading the goodies available from the FTP site I gather that
rbootd is the way to spit the linux kernel to a HP box.  Am I wrong?  Is
there no way of using the ISL?  I tried using the ISL (on my H60), got
an error message and was dumped back to the ISL prompt.

---------------------------------------------------------------------------
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From: Giles Lean <giles@nemeton.com.au>
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Subject: Re: [parisc-linux] Booting the kernel
Date: Fri, 02 Jul 1999 21:23:13 +1000
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On Thu, 1 Jul 1999 15:41:40 -0700  Davin Petersen wrote:

> After downloading the goodies available from the FTP site I gather that
> rbootd is the way to spit the linux kernel to a HP box.  Am I wrong?  Is
> there no way of using the ISL?  I tried using the ISL (on my H60), got
> an error message and was dumped back to the ISL prompt.

At the time the G/H/I series machines were released HP didn't support
network booting any 800 series machines, just workstations (700s).  I
suspect you won't be able to boot this machine from the network.

Regards,

Giles


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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Booting the kernel
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Matthew Wilcox schrieb:

> On Thu, Jul 01, 1999 at 03:41:40PM -0700, Davin Petersen wrote:
> > After downloading the goodies available from the FTP site I gather that
> > rbootd is the way to spit the linux kernel to a HP box.  Am I wrong?  Is
> > there no way of using the ISL?  I tried using the ISL (on my H60), got
> > an error message and was dumped back to the ISL prompt.
>
> rbootd is the way for older machines like my 715.  Later models like
> the A180 tftp their kernel, I think you need bootparamd set up as well.

That's not 100% correct, since my 715/64 uses bootpd/tftpd too.
David, you may start tftpd -d 0 (=zero) in etc/inetd.conf, so you can see
warnings & transfers on the Log-Console.
---snip---
#
tftp    dgram   udp     wait    nobody  /usr/sbin/tcpd  in.tftpd /tftpboot
bootps dgram udp wait root /usr/sbin/bootpd bootpd -d 0 -c /tftpboot
#
---snip---

Helge Deller.



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From: "Rich Rauenzahn" <rrauenza@cup.hp.com>
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Subject: Re: Antwort: [parisc-linux] Booting the kernel
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And if you don't know your disk path, you can always try...

hpux /stand/vmlinux

I've found that often works on newer OS installs.

(btw, for those of you who run HPUX, that's also the way to boot off of the
backup kernel; you would specify /stand/vmunix.prev)

Rich

> 4. use hpux to load vmlinux
>    hpux disc(2/0/1.6.0;0)/stand/vmlinux
>              2/0/1.6.0                   is the hardware path to the boot
> disk
>                       ;0                 stands for section 0 which means
> whole disk or LVM
>                         /stand/vmlinux   is the kernel file to boot
>
> Ulrich
> ---------------------------------------------
> Ulrich Strelow
> <ulrich.strelow@schering.de or
> ulrich_strelow@yahoo.com>
> Berlin, Germany
>
>
>
>
>
>
>
> Davin Petersen <davinp@celltech.com> am 02.07.99 00:41:40
>
>
> An:   parisc-linux@thepuffingroup.com
> Kopie:     (Blindkopie: Ulrich Strelow/BE/USR/SHG)
>
>
> Thema:    [parisc-linux] Booting the kernel
>
>
>
>
>
> After downloading the goodies available from the FTP site I gather that
> rbootd is the way to spit the linux kernel to a HP box.  Am I wrong?  Is
> there no way of using the ISL?  I tried using the ISL (on my H60), got
> an error message and was dumped back to the ISL prompt.
>
> --------------------------------------------------------------------------
-
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com
with
> `unsubscribe' as the subject.
>
>
>
>
>
> --------------------------------------------------------------------------

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From: Alex Apostolopoulos <alex@assyst-intl.com>
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Subject: Re: [parisc-linux] Booting the kernel
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Hi 
> 
> Matthew Wilcox schrieb:
> 
> > On Thu, Jul 01, 1999 at 03:41:40PM -0700, Davin Petersen wrote:
> > > After downloading the goodies available from the FTP site I gather that
> > > rbootd is the way to spit the linux kernel to a HP box.  Am I wrong?  Is
> > > there no way of using the ISL?  I tried using the ISL (on my H60), got
> > > an error message and was dumped back to the ISL prompt.
> >
> > rbootd is the way for older machines like my 715.  Later models like
> > the A180 tftp their kernel, I think you need bootparamd set up as well.
> 
> That's not 100% correct, since my 715/64 uses bootpd/tftpd too.
> David, you may start tftpd -d 0 (=zero) in etc/inetd.conf, so you can see
> warnings & transfers on the Log-Console.
> ---snip---

just for the record:
boot via rbootd
	715/33/50/75
	735/99/125

boot via bootptab
	715/64/80/100 ..
	712/60/80/100 

not at all
	B1000 (just a joke)

cheers alex
> #
> tftp    dgram   udp     wait    nobody  /usr/sbin/tcpd  in.tftpd /tftpboot
> bootps dgram udp wait root /usr/sbin/bootpd bootpd -d 0 -c /tftpboot
> #
> ---snip---
> 
> Helge Deller.
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


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From: Jon Peatfield <J.S.Peatfield@damtp.cam.ac.uk>
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Subject: Re: [parisc-linux] Booting the kernel
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This reminds me, does anyone have a working rbootd which runs on anything
other than HP-UX?  If we turn all our HPs into Linux boxes it would be nice to
still be able to boot them.  Of course looking at the rboot packets on the wire
shows that they are not anything I recognise...


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Subject: Re: [parisc-linux] Booting the kernel
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> Date: Sat, 3 Jul 1999 03:24:37 +0100
> From: Jon Peatfield <J.S.Peatfield@damtp.cam.ac.uk>
> To: alex@assyst-intl.com, deller@gmx.de
> Subject: Re: [parisc-linux] Booting the kernel
> 
> This reminds me, does anyone have a working rbootd which runs on anything
> other than HP-UX?  If we turn all our HPs into Linux boxes it would be nice to
> still be able to boot them.  Of course looking at the rboot packets on the wire
> shows that they are not anything I recognise...
> 

There is an rboot daemon that comes with all the BSDs and I believe the
same daemon will work on Linux as well.  There were some endian problems
once, but I think they were all solved so it should work on x86 boxes.
It requires BPF.


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Subject: [parisc-linux] New email address
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My email address will be changing from jason@equator.com to
jle@cygnus.com. Could the parisc list admin update my information please?

Best regards, jason.



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Mike Hibler wrote:
> 
> > Date: Sat, 3 Jul 1999 03:24:37 +0100
> > From: Jon Peatfield <J.S.Peatfield@damtp.cam.ac.uk>
> > To: alex@assyst-intl.com, deller@gmx.de
> > Subject: Re: [parisc-linux] Booting the kernel
> >
> > This reminds me, does anyone have a working rbootd which runs on anything
> > other than HP-UX?  If we turn all our HPs into Linux boxes it would be nice to
> > still be able to boot them.  Of course looking at the rboot packets on the wire
> > shows that they are not anything I recognise...
> >
> 
> There is an rboot daemon that comes with all the BSDs and I believe the
> same daemon will work on Linux as well.  There were some endian problems
> once, but I think they were all solved so it should work on x86 boxes.
> It requires BPF.


I fixed up rbootd to run on Linux awhile ago... you should be able to
find it on ftp://puffin.external.hp.com.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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It's quite a pain to actually find the sources from the reference on
the puffin group website.  There's a morass of broken links and the
OSF no longer seem to distribute the source.  So for everyone's
convenience, the URL for the latest set of Mach/PARISC sources is:

ftp://flux.cs.utah.edu/flux/mach/ALPHA/

Jeff, does 9th Jan 1996 sound like the most recent version to you?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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Subject: Re: [parisc-linux] Mach sources?
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Matthew Wilcox schrieb:

> It's quite a pain to actually find the sources from the reference on
> the puffin group website.  There's a morass of broken links and the
> OSF no longer seem to distribute the source.  So for everyone's
> convenience, the URL for the latest set of Mach/PARISC sources is:
>
> ftp://flux.cs.utah.edu/flux/mach/ALPHA/
>
> Jeff, does 9th Jan 1996 sound like the most recent version to you?

Hi Jeff !!
Thanks for the URL !

I don't know theese sources, but the URL
 ftp://ftp.duth.gr/pub1/mklinux_PA-RISC/
has a MkLinux-Port (OSF) for PA-RISC.
Maybe theese are the same sources, but since the names & dates are different the
sources on duth.gr seems to be newer !
But I think a look at both should be fine !

Helge.


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Another test kernel...
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I've just built and uploaded a new PA RISC kernel, which you can find
at:

ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/Image-19990705

This has a lot of new stuff in it, including functioning interrupts.

I would appreciate it if people could give it a try, particularly on
somewhat more obscure machines.  Mailing me (not the list!) bootup
messages would be appreciated, I'll summarize.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Mike Hibler <mike@fast.cs.utah.edu>
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Subject: Re:  [parisc-linux] Mach sources?
Date: Mon, 5 Jul 1999 22:09:09 -0600 (MDT)
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> Date: Mon, 5 Jul 1999 13:40:02 +0200
> From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
> To: parisc-linux@thepuffingroup.com
> Subject: [parisc-linux] Mach sources?
> 
> It's quite a pain to actually find the sources from the reference on
> the puffin group website.  There's a morass of broken links and the
> OSF no longer seem to distribute the source.  So for everyone's
> convenience, the URL for the latest set of Mach/PARISC sources is:
> 
> ftp://flux.cs.utah.edu/flux/mach/ALPHA/
> 
> Jeff, does 9th Jan 1996 sound like the most recent version to you?
> 

I'll give you the authoritative answer...
 
For the Utah code (Mach3 + 4.4BSD server), that was the last release,
in particular:

	ftp://flux.cs.utah.edu/flux/mach/ALPHA/pa-snapshot2.tar.gz

For the OSF code (OSF Mach + Linux server), I believe someone else posted
a URL for a copy of that.

The OSF code supported a few more machines (e.g., J series) and devices
(e.g., EISA stuff) than we did, though we might have had a few bug fixes
they didn't.  Of most interest in the Utah code is the HP-UX compatibility
code (mostly in the Lites server/emulator) which was good enough to run the
X11 server and Netscape.


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From: Philipp Rumpf <prumpf@suse.de>
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Subject: [parisc-linux] Interrupt[ion]s
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The basic code to take interruptions and return from them now is there. (I'd
like to hear if it works on machines other than the A180 though). The next
step is to make sure we don't clobber all registers in this process, which
I think should not be a big problem.

I think we should have the following types of interruption handlers:

a) save all registers into the current task_struct, call interruption handler
   (this would be used for interruptions that might change the running task)

b) save caller-saved registers to stack, call interruption handler
   (this would be the faster, normal kind of interruption)

c) hand-written handlers that use the shadow registers

d) a hand-written handler for external interrupts, which I think I'll write
   soon (this handler will either do a)-style or b)-style register saving
   depending on the interrupt handler.

e) the firmware-supplied HPMC handler

Any comments ?

	Philipp Rumpf


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Whee! Dino is recognized.
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I fixed up dino.c a little to setup it's HPA properly.  Understanding
the docs took a bit of time, so this is a personal victory.

Now the kernel boots up and prints:

Dino device driver, by Alan Cox and Alex deVries
dino0: version 3.1 at 0xFF000000, IRQ 0, 1.

Now we just need to configure the PCI bus properly, connect the
interrupts, and we should be close to being able to talk to a network.
The A-classes have tulips hanging off the PCI bus, so that should be
pretty simple.

There's some small changes so that the GSC irqs are handled by a pool
handler.

People with 712s differ at this point, you'll have to muck with Lasi's
built in ethernet port, which will be slightly difficult because you may
interrupt the serial console in doing so.  If you use the graphics, you
should be okay.

There's some initial code to handle multiple dinos, and it may in fact
work, but I really haven't tried (and can't until I have one of those
GSC ethernet cards that Thomas and Philipp have).

What other HPs have Dino onboard?

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Hannu Martikka <martikka@stybba.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] vmlinux in C360
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Hi!

I have problems with Linux on C360. Here is what I tried:

1) Get latest kernel src from CVS + egcs from binaries/depot.
2) Compilation works fine (done on hpux11/D-series):
	make config; make dep;make clean ; make vmlinux ; make Image

3) copy vmlinux to /stand/vmlinux in C360
4) reboot with IPL
5) hpux /stand/vmlinux

	boot:(0.0......)/stand/vmlinux

This is the last message. Here it hangs. On frontpanel the leds 1-3 are on
(no 4 is off).

Should it work better in C-series? or is C-series "unsupported"?

- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


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Xref: news.gmane.org gmane.linux.ports.parisc:9685

On Wed, Jul 07, 1999 at 01:05:35PM +0300, Hannu Martikka wrote:
> Hi!
> 
> I have problems with Linux on C360. Here is what I tried:

According to http://www.hp.com/unixwork/hpc360/page6.htm, the C360
has a PA-8500 CPU which is PA-RISC version 2.0.  This port is
currently only targetting the PA-RISC 1.1 family of processors since
this is where most of the demand is.  In time, I'm sure we will
support the PA-RISC 2.0 series of processors, but we don't right now.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Hannu Martikka wrote:
> I have problems with Linux on C360. Here is what I tried:
> 
...
> 
> This is the last message. Here it hangs. On frontpanel the leds 1-3 are on
> (no 4 is off).
> 
> Should it work better in C-series? or is C-series "unsupported"?

Matt is likely right, it is something to do with that being a 2.0 CPU.

I'm a bit surprised that you never see anything, though.  It could be
that our PDC calls or CPU setup code is CPU specific, but I'd thought it
was pretty generic.

Just to eliminate the possibility of it being a build time bug, could
you try booting that c360 with a precompiled  kernel at
ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/ ?

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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> > I have problems with Linux on C360. Here is what I tried:
> 
> According to http://www.hp.com/unixwork/hpc360/page6.htm, the C360
> has a PA-8500 CPU which is PA-RISC version 2.0.  This port is
> currently only targetting the PA-RISC 1.1 family of processors since
> this is where most of the demand is.  In time, I'm sure we will
> support the PA-RISC 2.0 series of processors, but we don't right now.

Still, I _think_ we should be able to run the kernel on PA2.0 in narrow mode.

As soon as I can get my hands on a PA2.0 box, I can test that.


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On Wed, Jul 07, 1999 at 05:23:38PM +0200, Philipp Rumpf wrote:
> > > I have problems with Linux on C360. Here is what I tried:
> > 
> > According to http://www.hp.com/unixwork/hpc360/page6.htm, the C360
> > has a PA-8500 CPU which is PA-RISC version 2.0.  This port is
> > currently only targetting the PA-RISC 1.1 family of processors since
> > this is where most of the demand is.  In time, I'm sure we will
> > support the PA-RISC 2.0 series of processors, but we don't right now.
> 
> Still, I _think_ we should be able to run the kernel on PA2.0 in narrow mode.
> 
> As soon as I can get my hands on a PA2.0 box, I can test that.

I think you're right for the moment.  The TLB instructions are 
different between the two variants though; maybe there's some other
stuff?

I guess the bootloader needs to force the W bit to 0?  I note that on
an interruption, the W bit is set to the value of the default width
bit, but how to set the default width bit is implementation defined. 
Anyone care to hint at how to set the default width bit too?

-- 
"A `puffin shuttle' also runs in the summer when the cute, meaty birds
are abundant on nearby cliffs."

Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Whee! Dino is recognized.
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Alex deVries wrote:
> 
> I fixed up dino.c a little to setup it's HPA properly.  Understanding
> the docs took a bit of time, so this is a personal victory.

Congrats!
This is a good step forward.

A few more notes below.

> 
> Now the kernel boots up and prints:
> 
> Dino device driver, by Alan Cox and Alex deVries
> dino0: version 3.1 at 0xFF000000, IRQ 0, 1.

Did you plan on using both IAR0 and IAR1?

You don't need to. It doesn't help on single processor systems
and only adds complexity in the IRQ management.

> Now we just need to configure the PCI bus properly, connect the
> interrupts, and we should be close to being able to talk to a network.
> The A-classes have tulips hanging off the PCI bus, so that should be
> pretty simple.

The PCI bus walk and IRQ management is pretty straight forward.
At least if one has done it once before. :^)

Don't forget about U2/Uturn DMA services on C/J-class.
It can probably be ignored for now.
They help performance if the OS can determine DMA is coherent
with processor caches. Then the PCI device drivers don't need
to flush processor caches before/after DMA operations. It also
allows 32-bit PCI devices to access more than 4GB of mem directly.

> 
> There's some small changes so that the GSC irqs are handled by a pool
> handler.
> 
> People with 712s differ at this point, you'll have to muck with Lasi's
> built in ethernet port, which will be slightly difficult because you may
> interrupt the serial console in doing so.  If you use the graphics, you
> should be okay.
> 
> There's some initial code to handle multiple dinos, and it may in fact
> work, but I really haven't tried (and can't until I have one of those
> GSC ethernet cards that Thomas and Philipp have).

Notes:
1) The "card-mode" Dino's report different IODC data.
   See description of IODC_DATA_0 register in the ERS.
   The GSC 100BT cards using DEC 100BT LAN chip are "card-mode".

2) Firmware will NOT touch card-mode Dino devices. ie Dino and PCI devices
   below it must be programmed by the OS from scratch. Due to all the
   platform variations where card-mode Dino are supported, HP-UX does
   NOT map PCI MMIO space into processor I/O address space.

2) On J-class, the second GSCtoPCI IODC data is reported incorrectly
   by firmware. I forgot what it reports but recall we had to kludge
   the test in HP-UX.

> What other HPs have Dino onboard?

All A, B, C, and J class workstations.
And the "industrial" rack mount 743 family.
C and J have two built-in (aka Bridge-Mode) GSCtoPCI bus converters.
J-class is "SMP" (2 processors).

hope this helps,
grant

> 
> - Alex

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Grant Grundler wrote:
> Alex deVries wrote:

> > Dino device driver, by Alan Cox and Alex deVries
> > dino0: version 3.1 at 0xFF000000, IRQ 0, 1.
> 
> Did you plan on using both IAR0 and IAR1?
> 
> You don't need to. It doesn't help on single processor systems
> and only adds complexity in the IRQ management.
>

Oh, that wasn't quite clear in the dino docs.  I'll just ignore IAR1
then.

> 
> The PCI bus walk and IRQ management is pretty straight forward.
> At least if one has done it once before. :^)

The kernel already has generic PCI bus walking code, so this shouldn't
be too difficult
to sort out.  Philipp's doing very well with the interruption stuff, we
just need interrupts to work to be able to link them in.

But we can walk the bus without interrupts, so that's what I'm doing
next.

> Don't forget about U2/Uturn DMA services on C/J-class.
> It can probably be ignored for now.

It will be ignored for now because:
- I don't have a C or J class
- I've never heard of U2/Uturn before :)

> >
> > There's some initial code to handle multiple dinos, and it may in fact
> > work, but I really haven't tried (and can't until I have one of those
> > GSC ethernet cards that Thomas and Philipp have).
> 
> Notes:
> 1) The "card-mode" Dino's report different IODC data.
>    See description of IODC_DATA_0 register in the ERS.
>    The GSC 100BT cards using DEC 100BT LAN chip are "card-mode".

Yeah, I have detection for card mode. 

> 
> 2) Firmware will NOT touch card-mode Dino devices. ie Dino and PCI devices
>    below it must be programmed by the OS from scratch. Due to all the
>    platform variations where card-mode Dino are supported, HP-UX does
>    NOT map PCI MMIO space into processor I/O address space.

That makes sense, and once you know if it's a card mode Dino, then you
can decide if you need to setup the entire device from scratch.

Exactly what setup is required here?  I know on the second page into
Chapter 5 of the Dino docs they describe an example setup.

> 2) On J-class, the second GSCtoPCI IODC data is reported incorrectly
>    by firmware. I forgot what it reports but recall we had to kludge
>    the test in HP-UX.
> > What other HPs have Dino onboard?
> All A, B, C, and J class workstations.
> And the "industrial" rack mount 743 family.
> C and J have two built-in (aka Bridge-Mode) GSCtoPCI bus converters.
> J-class is "SMP" (2 processors).

Ah, excellent.

What HPs have Lasi?

> hope this helps,

It definitely does... thanks!

- alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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In-Reply-To: <37839773.AE65FE8E@thepuffingroup.com> from "Alex deVries" at Jul 7, 99 02:07:47 pm
Xref: news.gmane.org gmane.linux.ports.parisc:9691

> > You don't need to. It doesn't help on single processor systems
> > and only adds complexity in the IRQ management.
> >
> 
> Oh, that wasn't quite clear in the dino docs.  I'll just ignore IAR1
> then.

Right now the code treats the IRQ off IAR0 and IAR1 as the same - so you 
register an IRQ and SMP folks can load balance it later.

> The kernel already has generic PCI bus walking code, so this shouldn't
> be too difficult

It assumes the bus has been configured. If not then Russ King has a set
of nastiness for configuring the PCI bus on his ebsa285 we can half inch


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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Subject: Re: [parisc-linux] vmlinux in C360
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Hi !

Only a little idea, but you could try to set the Boot-Offset for the loaded
Image in the
arch/parisc/Makefile from 0x10000 to 0x12000 or higher....
It could be, that we overwrite the PDC & IO-Structures from the BIOS...
I think I read something about that in the other parisc-ports.....

Helge.

Hannu Martikka schrieb:

> Hi!
>
> I have problems with Linux on C360. Here is what I tried:
>
> 1) Get latest kernel src from CVS + egcs from binaries/depot.
> 2) Compilation works fine (done on hpux11/D-series):
>         make config; make dep;make clean ; make vmlinux ; make Image
>
> 3) copy vmlinux to /stand/vmlinux in C360
> 4) reboot with IPL
> 5) hpux /stand/vmlinux
>
>         boot:(0.0......)/stand/vmlinux
>
> This is the last message. Here it hangs. On frontpanel the leds 1-3 are on
> (no 4 is off).
>
> Should it work better in C-series? or is C-series "unsupported"?
>
> - Goodi
> "The linuX Files -- The Source is Out There."
> ,,`,,`,,`,,``,,
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

--
---------------------------------------
 Mailto:deller@gmx.de
 ICQ# 2046114
---------------------------------------



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Helge Deller wrote:
> 
> Hi !
> 
> Only a little idea, but you could try to set the Boot-Offset for the loaded
> Image in the
> arch/parisc/Makefile from 0x10000 to 0x12000 or higher....
> It could be, that we overwrite the PDC & IO-Structures from the BIOS...
> I think I read something about that in the other parisc-ports.....
> 

Is there any reason not to bump that up to 0x12000 ? 

- A

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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> Date: Wed, 07 Jul 1999 22:15:51 -0400
> From: Alex deVries <adevries@thepuffingroup.com>
> To: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
> Subject: Re: [parisc-linux] vmlinux in C360
> 
> Helge Deller wrote:
> > 
> > Hi !
> > 
> > Only a little idea, but you could try to set the Boot-Offset for the loaded
> > Image in the
> > arch/parisc/Makefile from 0x10000 to 0x12000 or higher....
> > It could be, that we overwrite the PDC & IO-Structures from the BIOS...
> > I think I read something about that in the other parisc-ports.....
> > 
> 
> Is there any reason not to bump that up to 0x12000 ? 
> 

I thought that 0x10000 was the magic value, the PDC using memory below that.
However, we do indeed load the Mach kernel at 0x12000 and we load our BSD
kernel at 0x11000.  I no longer remember the reason, but I'm sure it was a
good one! :-)


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Mike Hibler schrieb:

> > Date: Wed, 07 Jul 1999 22:15:51 -0400
> > From: Alex deVries <adevries@thepuffingroup.com>
> > To: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
> > Subject: Re: [parisc-linux] vmlinux in C360
> >
> > Helge Deller wrote:
> > >
> > > Hi !
> > >
> > > Only a little idea, but you could try to set the Boot-Offset for the loaded
> > > Image in the
> > > arch/parisc/Makefile from 0x10000 to 0x12000 or higher....
> > > It could be, that we overwrite the PDC & IO-Structures from the BIOS...
> > > I think I read something about that in the other parisc-ports.....
> > >
> >
> > Is there any reason not to bump that up to 0x12000 ?

No, I don't know... (maybe only theese few unused kilobyte...)
Alex, maybe you want to set it higher ? (We could try lower it later again!).

> I thought that 0x10000 was the magic value, the PDC using memory below that.
> However, we do indeed load the Mach kernel at 0x12000 and we load our BSD
> kernel at 0x11000.  I no longer remember the reason, but I'm sure it was a
> good one! :-)

Hannu: did you tried, if it worked ?

Helge.



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> I guess the bootloader needs to force the W bit to 0?  I note that on
> an interruption, the W bit is set to the value of the default width
> bit, but how to set the default width bit is implementation defined.
> Anyone care to hint at how to set the default width bit too?

You use PDC_PSW to set the default width and default endian bits.  See page 2-59
in:

	http://dtf.external.hp.com/dtf/swdev/pdf/pdc.pdf

 -- Jim


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On Thu, 8 Jul 1999, Helge Deller wrote:

> Mike Hibler schrieb:
> 
> > > Date: Wed, 07 Jul 1999 22:15:51 -0400
> > > From: Alex deVries <adevries@thepuffingroup.com>
> > > To: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
> > > Subject: Re: [parisc-linux] vmlinux in C360
> > >
> > > Helge Deller wrote:
> > > >
> > > > Hi !
> > > >
> > > > Only a little idea, but you could try to set the Boot-Offset for the loaded
> > > > Image in the
> > > > arch/parisc/Makefile from 0x10000 to 0x12000 or higher....
> > > > It could be, that we overwrite the PDC & IO-Structures from the BIOS...
> > > > I think I read something about that in the other parisc-ports.....
> > > >
> > >
> > > Is there any reason not to bump that up to 0x12000 ?
> 
> No, I don't know... (maybe only theese few unused kilobyte...)
> Alex, maybe you want to set it higher ? (We could try lower it later again!).
> 
> > I thought that 0x10000 was the magic value, the PDC using memory below that.
> > However, we do indeed load the Mach kernel at 0x12000 and we load our BSD
> > kernel at 0x11000.  I no longer remember the reason, but I'm sure it was a
> > good one! :-)
> 
> Hannu: did you tried, if it worked ?
Yes. It works better now. I used the 0x12000.

Now I see following:
----------------------------------------------------------
ISL> hpux /stand/vmlinux

Boot
:disk (8/..........)/stand/vmlinux
397320 + 114688 + 66464 start 0x12000

The kernel has started...
You are running a 0Mhz PA-RISC-Machine with 0MB of RAM.
First free address was 0x00000000 (This is the base of the stack).
Stacksize = 0x00040000.
First free User-Memory starts now at address 0x00040000 and ends at
0x00090beb.
L
----------------------------------------------------------

I guess that it still tries to say something (Cursor was placed after "L"
on last line). The amount of memory and Mhz are also bit incorrect...

Ps. Axex: I have tried couple of times to mail you directly... Did you get
those emails?

Btw. Is there going to be anything about paric-linux in LinuxExpo (San
Jose 9-12 Aug) or in HP-World? Anyone going there?

> 
> Helge.
- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,



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From: Hannu Martikka <martikka@stybba.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] vmlinux in C360
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On Thu, 8 Jul 1999, Jim Hull wrote:

> > I guess the bootloader needs to force the W bit to 0?  I note that on
> > an interruption, the W bit is set to the value of the default width
> > bit, but how to set the default width bit is implementation defined.
> > Anyone care to hint at how to set the default width bit too?
> 
> You use PDC_PSW to set the default width and default endian bits.  See page 2-59
> in:
> 
> 	http://dtf.external.hp.com/dtf/swdev/pdf/pdc.pdf
There seems to be some problems with that url...
"Connection was refused by te server dtf.external.hp.com"

>  -- Jim
- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


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From: Phil Schwan <pschwan@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [Helge.Deller@ruhr-uni-bochum.de: licencing-question... ?]
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The mailing list is still grossly misbehaving, but it seems to only do
so for Helge's mail.  I'm dealing with some mailing list issues today,
so I'll look at this as well.  In the meantime, here's Helge's mail:

-Phil

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Message-ID: <37862832.63D6A751@ruhr-uni-bochum.de>
Old-Date: Fri, 09 Jul 1999 18:49:54 +0200
From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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CC: parisc-linux@thepuffingroup.com
Subject: licencing-question... ?
References: <Pine.HPX.4.05.9907091607460.19393-100000@gamgee.ntc.nokia.com>
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Hi !

Since my commits do not show on the cvs-parisc-list......

I committed again some changes (Phillip: I only changed some small things, so that we
could compile the source again; please ignore all my changes in irq.c !),  but my
main-question is:

Are we/Am I  allowed to use code from the OSF-parisc-port ???
The license from this port is:
-----------------------------------------------------------------
/*
 * Copyright 1996 1995 by Open Software Foundation, Inc.
 *              All Rights Reserved
 *
 * Permission to use, copy, modify, and distribute this software and
 * its documentation for any purpose and without fee is hereby granted,
 * provided that the above copyright notice appears in all copies and
 * that both the copyright notice and this permission notice appear in
 * supporting documentation.
 *
 * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE.
 *
 * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
/*
 * Copyright (c) 1990,1991,1994 The University of Utah and
 * the Computer Systems Laboratory (CSL).  All rights reserved.
 *
 * THE UNIVERSITY OF UTAH AND CSL PROVIDE THIS SOFTWARE IN ITS "AS IS"
 * CONDITION, AND DISCLAIM ANY LIABILITY OF ANY KIND FOR ANY DAMAGES
 * WHATSOEVER RESULTING FROM ITS USE.
 *
 * CSL requests users of this software to return to csl-dist@cs.utah.edu any
 * improvements that they make and grant CSL redistribution rights.
 *
 */
-----------------------------------------------------------------

Can we use the code, is it OK to accept this license, or shall we rewrite all ????

Thanks,
Helge.

--s2ZSL+KKDSLx8OML--


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] licencing-question... ?
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Xref: news.gmane.org gmane.linux.ports.parisc:9700

On Fri, Jul 09, 1999 at 01:09:13PM -0400, Phil Schwan wrote:
> Are we/Am I  allowed to use code from the OSF-parisc-port ???
> The license from this port is:
> -----------------------------------------------------------------
> /*
>  * Copyright 1996 1995 by Open Software Foundation, Inc.
>  *              All Rights Reserved

>  * Permission to use, copy, modify, and distribute this software and
>  * its documentation for any purpose and without fee is hereby granted,
>  * provided that the above copyright notice appears in all copies and
>  * that both the copyright notice and this permission notice appear in
>  * supporting documentation.

This is the only bit to worry about.  I _think_ it's okay (ie this isn't
the infamous `advertising clause -- i think that's the one which talks about
being mentioned on the advertising for your product).  At any rate, the X11
licence which is generally reckoned GPL-subsumable contains:

  The above copyright notice and this permission notice shall be
  included in all copies or substantial portions of the Software.

The sticking point could be the copyright & permissions having to
appear in the supporting documentation.  What would be the supporting
documentation if, say, Red Hat sold Red Hat 8.0 for the PA-RISC? 
Would the user documentation have to include the copyright notice?

[I notice that it doesn't say `or substantial portions', so maybe just
 stealing large quantities of it and not including the permission notice
 in the documentation would be okay, as long as you don't use all of it.
 This will almost certainly annoy people though.]

>  * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
>  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
>  * FOR A PARTICULAR PURPOSE.

that's fine, the GPL does that too.

>  * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
>  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
>  * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
>  * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
>  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

ditto.

>  * Copyright (c) 1990,1991,1994 The University of Utah and
>  * the Computer Systems Laboratory (CSL).  All rights reserved.
>  *
>  * THE UNIVERSITY OF UTAH AND CSL PROVIDE THIS SOFTWARE IN ITS "AS IS"
>  * CONDITION, AND DISCLAIM ANY LIABILITY OF ANY KIND FOR ANY DAMAGES
>  * WHATSOEVER RESULTING FROM ITS USE.

ditto

>  * CSL requests users of this software to return to csl-dist@cs.utah.edu any
>  * improvements that they make and grant CSL redistribution rights.

`requests' is not legally binding, so that's fine.

> Can we use the code, is it OK to accept this license, or shall we rewrite all ????

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Mike Hibler <mike@fast.cs.utah.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] licencing-question... ?
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We (Utah CSS/CSL) tried to make our copyrights more "GPL-friendly" in
later years (i.e., no advertising clause).  If there is still some problem,
by all means let me know before you go off and rewrite Utah code!  We can
probably re-release it with a different copyright (he says naively...)


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From: Philipp Rumpf <prumpf@suse.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] licencing-question... ?
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> We (Utah CSS/CSL) tried to make our copyrights more "GPL-friendly" in
> later years (i.e., no advertising clause).  If there is still some problem,
> by all means let me know before you go off and rewrite Utah code!  We can
> probably re-release it with a different copyright (he says naively...)

If that indeed would be possible, a simple note stating that it is allowed to
distribute combinations of GPLed code and the code in question under the terms
of the GPL would suffice. What about the Open Software Foundation ?


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From: Hannu Martikka <martikka@stybba.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] OS_ID and include/asm-parics/pdc.h
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To: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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  This message is in MIME format.  The first part should be readable text,
  while the remaining parts are likely unreadable without MIME-aware tools.
  Send mail to mime@docserver.cac.washington.edu for more info.

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Hi!

When reading the pdc.pdf document I noticed OS_ID field in Stable Storage
area. On page 2-65:
"The first halfword of the first OS Dependet are is used to store an
identifier caller OS_ID. OS-dependent use of Stable Stodare and
Non-Volatile Memory is qualified by OS_ID."

Then there is a list of OS_ID values "assigned by HP System Architecture
and Design Lab". 

On asm-parisc/pdc.h (from OSF) we have following:
#define OS_ID_NONE      0
#define OS_ID_HPUX      1
#define OS_ID_MPE_XL    2

On pdc.h we have more of these:
0x0003 	OSF dependent data
0x0004	HP-RT dependent data
0x0005	Novell Netware dependent data

I think we might require our own OS_ID (at least in futre) if we are
going to use that non-volatile memory for something. So maybe something
like this could be registered with HP (or is it already done?):

0x0006	Linux dependent data

There is also SW_CAP field (page 2-33 on pdc.pdf) which defines "the
operating system capabilities of the processor module". This array defines
only Novell, HP-RT, OSF, MPE and HP-UX fields (and couple of R(Reserved?) 
fields). Another guestion is that do we need this for anything?

- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,

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ZGMuaAlTYXQgSnVsIDEwIDA5OjQzOjA1IDE5OTkNCioqKioqKioqKioqKioq
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aW5lIE9TX0lEX05PTkUJMA0KICAjZGVmaW5lIE9TX0lEX0hQVVggCTENCiAg
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RUwgKi8NCiAgCXVuc2lnbmVkIGludCAgIG1vZF9sZW47DQogIAlpbnQgICAg
IGZpbGxlclszMV07DQo=
--1418613302-851401618-931589234=:11988--


From - Thu Nov 08 21:15:47 2018
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From: Hannu Martikka <martikka@stybba.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] OS_ID and include/asm-parics/pdc.h
Date: Sat, 10 Jul 1999 09:59:11 +0300 (EETDST)
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On Sat, 10 Jul 1999, Hannu Martikka wrote:


> On asm-parisc/pdc.h (from OSF) we have following:
> #define OS_ID_NONE      0
> #define OS_ID_HPUX      1
> #define OS_ID_MPE_XL    2
> 
> On pdc.h we have more of these:
> 0x0003 	OSF dependent data
> 0x0004	HP-RT dependent data
> 0x0005	Novell Netware dependent data
> 
> 0x0006	Linux dependent data
Something went wrong with that patch... Anyway what I meant was to add
like this:

*** pdc.h.oli   Sat Jul 10 09:43:22 1999
--- pdc.h       Sat Jul 10 09:43:05 1999
***************
*** 263,268 ****
--- 263,272 ----
  #define OS_ID_NONE    0
  #define OS_ID_HPUX    1
  #define OS_ID_MPE_XL  2
+ #define OS_ID_OSF     3
+ #define OS_ID_HP_RT   4
+ #define OS_ID_NETWARE 5
+ #define OS_ID_LINUX   6 /* This needs to be reserved from HP! */
  struct pdc_sys_model {  /* PDC_MODEL/PDC_MODEL_SYS_MODEL */
        unsigned int   mod_len;
        int     filler[31];



- Goodi 
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


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From: Phil Schwan <pschwan@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] archive test
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In theory, if this test goes well, we'll have up-to-date mailing list
archives.  Here's hoping.


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From: Phil Schwan <pschwan@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] give this one more try...
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Right.


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From: Phil Schwan <pschwan@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
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Now that we've finally decided where to put them, the mailing list
archives are available.  parisc-linux-cvs appears to be missing the
first month or so for totally unknown reasons, but parisc-linux seems
to be complete.

You'll find them at:
http://puffin.external.hp.com/mailing-lists/parisc-linux
http://puffin.external.hp.com/mailing-lists/parisc-linux-cvs

They should update immediately after each message is posted.  Let me
know if there are any problems.

-Phil


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From: Mike Shaver <shaver@netscape.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] serial console
Date: Sat, 10 Jul 1999 14:53:39 -0400
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I have a serial console cable that came with my A180C, but I can't get
the silly box to talk to it.

I've tried with another known-good cable (it works with my Indy), and
still nothing.  What do I need to do to activate it?  I tried unplugging
the web console from the network, and rebooting with the serial cable
connected and minicom running, but still no joy.

Also, is there an equivalent to Sun's L1-A or the Indy's
send-break-over-serial that will get me back to the PROM in the event
that Linux jumps to east nowhere?  Or do I have to power cycle?

Mike

-- 
275134.15 242554.19


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From: Philipp Rumpf <prumpf@suse.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Helge's commits
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First, please excuse me if I sound a bit aggressive ...

> Update of /home/cvs/parisc/linux/include/asm-parisc
> In directory puffin.external.hp.com:/tmp/cvs-serv25289
> 
> Modified Files:
> 	pdc.h 
> Log Message:
> 
> added the OS_ID-patch from Hannu..

Helge, I very much appreciate you working on this project.  Still, I think you
should be a bit more communicative on what you commit, especially if there are
legal (see the OSF code) or political (as I suspect might be the case for this
change) issues.  I lost quite a bit of time yesterday because of the code you
committed (which was partly due to the parisc-linux-cvs list not working) and
I would like to avoid that in the future.

	Philipp Rumpf


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PDC woes
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Philipp asked me to write a function to calculate the frequency of the
interval timer.  However, the PDC doesn't want to cooperate.  I see
`hello' printed on the screen, but not `world'.  So somehow this PDC
call is going wrong.  Anyone have any clues?  pim_info is not very
revealing.  If it helps anyone, the blinkenlights on my 715/33 are at:

10110010

Is there a document somewhere describing what the blinkenlights mean?

Here's the function:

/*
 * Find the interval timer frequency.
 */
static long calculate_interval_timer_frequency(void)
{
        long exponent, mantissa, result;
        long buf[4] __attribute__ ((aligned (8)));
printk("hello\n");
        (*pdc) (PDC_TOD, PDC_TOD_ITIMER, buf, 0);
printk("world\n");
        exponent = (buf[0] >> 20) & 0x7ff;
        mantissa = (buf[0] & 0xfffff) | 0x100000;
        result = (mantissa >> (1038 - exponent)) * 625 * 625;
printk("exponent = %ld mantissa = %ld result = %ld\n", exponent, mantissa, resul
t);
        return result;
}


-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Helge's commits
Date: Sun, 11 Jul 1999 11:36:06 +0200
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To: Philipp Rumpf <prumpf@suse.de>
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Hi Philipp,

Philipp Rumpf schrieb:

> First, please excuse me if I sound a bit aggressive ...
>
> > Update of /home/cvs/parisc/linux/include/asm-parisc
> > In directory puffin.external.hp.com:/tmp/cvs-serv25289
> >
> > Modified Files:
> >       pdc.h
> > Log Message:
> >
> > added the OS_ID-patch from Hannu..
>
> Helge, I very much appreciate you working on this project.

Thank you very much.

> Still, I think you
> should be a bit more communicative on what you commit, especially if there are
> legal (see the OSF code) or political (as I suspect might be the case for this
> change) issues.

Yes, you are right ! I will talk more to you and the list before I commit
something new. As you already said, there ARE legal und political issues, and
because of that I already asked the list in one of my last mails, if we are
allowed to use that code.
>From what I (and you too) saw, Utah CSS/CSL would be able to change that license,
the only question is, if OSF is willing to change it too ?

> I lost quite a bit of time yesterday because of the code you
> committed (which was partly due to the parisc-linux-cvs list not working) and

I'm really sorry for that, but I think adding some #defines to pdc.h could not
have been the problem.
I don't know any longer for sure, but I think I added a semicolon at the end of a
line in irq.h, and removed an unbalanced #if.. in irq.c, so that I could compile
vmlinux again. I really had everytime problems compiling vmlinux cleanly after
your commits, since it seemed, that you haven't tried to compile the kernel before
you committed something.
BUT: Please don't let us sue each other here... !
I PROMISE not to change and commit something in your or others current work again
!

> I would like to avoid that in the future.

As you can see, I would like to avoid that too and I'm sorry for any problems,
which showed up so far !

>         Philipp Rumpf

Helge Deller.


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Helge Deller wrote:
> From what I (and you too) saw, Utah CSS/CSL would be able to change that license,
> the only question is, if OSF is willing to change it too ?

OSF's license is _probably_ GPL-compatible as-is, though the requirement
for mention of permission notice in documentation might put it afoul,
and I'd want to check with a real lawyer to be sure.  The Utah CSS/CSL
license, as currently in place on pdc.h and such, is not at all
GPL-compatible.  Hopefully, we can get it changed, but in the meantime I
don't think we should be barging ahead and adding these files to the
tree. 

I and others (self-identify if you wish) think that until the issues are
cleared up, we should probably remove the OSF/CSS/CSL code from the
tree.  Hopefully we can get it all cleared up in short order, but until
then I'm nervous about what happens a month from now when Utah says
``no, you can't relicense'' and we have to redevelop lots of the code. 
Ask the 4.4LITE guys, it's not fun.

Mike

-- 
350842.71 306592.32


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> Date: Sun, 11 Jul 1999 18:36:01 -0400
> From: Mike Shaver <shaver@netscape.com>
> To: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
> Subject: Re: [parisc-linux] Helge's commits
> 
> Helge Deller wrote:
> > From what I (and you too) saw, Utah CSS/CSL would be able to change that license,
> > the only question is, if OSF is willing to change it too ?
> 
> OSF's license is _probably_ GPL-compatible as-is, though the requirement
> for mention of permission notice in documentation might put it afoul,
> and I'd want to check with a real lawyer to be sure.  The Utah CSS/CSL
> license, as currently in place on pdc.h and such, is not at all
> GPL-compatible.  Hopefully, we can get it changed, but in the meantime I
> don't think we should be barging ahead and adding these files to the
> tree. 
> 
Doh!  You are right, we do have quite a few files in there with the
notorious advertising clause.  I assume that is the sticky part?
I'll see what I can do...


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> Doh!  You are right, we do have quite a few files in there with the
> notorious advertising clause.  I assume that is the sticky part?
> I'll see what I can do...

Don't waste your time. The first thing to do is too check with OSF. I guess
their response will be "No way" so we can forget about that.


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  > > Doh!  You are right, we do have quite a few files in there with the
  > > notorious advertising clause.  I assume that is the sticky part?
  > > I'll see what I can do...
  > 
  > Don't waste your time. The first thing to do is too check with OSF. I guess
  > their response will be "No way" so we can forget about that.
Maybe, maybe not.  Depends on what Mike finds in the UofU sources -- the UofU
wrote most of the PA code, not OSF.  So while OSF may have slapped a copyright
on it when they picked it up and modified it, there may well be versions in
the UofU tree that are not encumbered by the OSF license and are copyrighted
by the UofU only.

This is something I've been meaning to bright up with folks at the UofU, but
keep forgetting when I'm up there.  Mike's probably in a better position to do
it anyway since he's still with the UofU.

jeff


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [Fwd: Re: [parisc-linux] PDC woes]
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Dies ist eine mehrteilige Nachricht im MIME-Format.
--------------447487C03A72049BA408CDB6
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit

If this message goes through, does anybody have any ideas, why my mails
sent from Netscape/Win95 goes through to the list, but those from
Netscape/Linux not ????
Thanks,
Helge.
(This message was sent with Netscape/Win95, the message below with
Netscape/Linux).


-------- Original Message --------
Betreff: Re: [parisc-linux] PDC woes
Datum: Mon, 12 Jul 1999 01:08:45 +0200
Von: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
An: Matthew Wilcox <Matthew.Wilcox@genedata.com>
CC: parisc-linux@thepuffingroup.com
Referenzen: <19990711011852.A25925@mencheca.ch.genedata.com>

Matthew Wilcox wrote:

> Philipp asked me to write a function to calculate the frequency of the
> interval timer.  However, the PDC doesn't want to cooperate.  I see
> `hello' printed on the screen, but not `world'.  So somehow this PDC
> call is going wrong.  Anyone have any clues?  pim_info is not very
> revealing.  If it helps anyone, the blinkenlights on my 715/33 are at:
>
> 10110010
>
> Is there a document somewhere describing what the blinkenlights mean?

>
>
> Here's the function:
>
> /*
>  * Find the interval timer frequency.
>  */
> static long calculate_interval_timer_frequency(void)
> {
>         long exponent, mantissa, result;
>         long buf[4] __attribute__ ((aligned (8)));
> printk("hello\n");
>         (*pdc) (PDC_TOD, PDC_TOD_ITIMER, buf, 0);
> printk("world\n");
>         exponent = (buf[0] >> 20) & 0x7ff;
>         mantissa = (buf[0] & 0xfffff) | 0x100000;
>         result = (mantissa >> (1038 - exponent)) * 625 * 625;
> printk("exponent = %ld mantissa = %ld result = %ld\n", exponent, mantissa, resul
> t);
>         return result;
> }
>
> --
> Matthew Wilcox <willy@bofh.ai>
> "Windows and MacOS are products, contrived by engineers in the service of
> specific companies. Unix, by contrast, is not so much a product as it is a
> painstakingly compiled oral history of the hacker subculture." - N Stephenson

Hi Matthew !

I took a little look at your code and found the problem(s):
1. When you call PDC-functions and want them to report values back into
a
result-buffer, this result-buffer always has to be a minimum of 32 longs
in size
and aligned (alignment differs from double-word bondaries to
4096-byte-boundaries
!).
The Problem was, that you only reserved a buffer for 4 longs, and so the
pdc-function overwrote the calling-stack, ergo: the pdc-call never
returned!
2. Maybe you also have to change (you should try!)
        (*pdc) (PDC_TOD, PDC_TOD_ITIMER, buf, 0);
to
        (*pdc) (PDC_TOD, PDC_TOD_ITIMER, &buf, 0);    (the &-sign..)

The new code looks then like the attachment.... and it worked here (But
I dont
know, if the values are correct!).

my output here was: exponent = 1029, mantissa = 1048576 result =
800000000

I hope that I could help you,

Helge.
--------------447487C03A72049BA408CDB6
Content-Type: text/plain; charset=us-ascii;
 name="timer_calc.c"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="timer_calc.c"

/*
 * Find the interval timer frequency.
 */
static long calculate_interval_timer_frequency(void)
{
        long exponent, mantissa, result;
        long buf[32] __attribute__ ((aligned (8)));
	//changed to 32
printk("hello\n");
        (*pdc) (PDC_TOD, PDC_TOD_ITIMER, &buf, 0);
	//changed to &buf
printk("world\n");
        exponent = (buf[0] >> 20) & 0x7ff;
        mantissa = (buf[0] & 0xfffff) | 0x100000;
        result = (mantissa >> (1038 - exponent)) * 625 * 625;
printk("exponent = %d mantissa = %d result = %d\n", 
		exponent, mantissa, result);
        return result;
}


--------------447487C03A72049BA408CDB6--


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To: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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Helge Deller wrote:
> 
> If this message goes through, does anybody have any ideas, why my mails
> sent from Netscape/Win95 goes through to the list, but those from
> Netscape/Linux not ????
> Thanks,
> Helge.
> (This message was sent with Netscape/Win95, the message below with
> Netscape/Linux).
> 
>
> Betreff: Re: [parisc-linux] PDC woes
> Datum: Mon, 12 Jul 1999 01:08:45 +0200
> Von: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
> An: Matthew Wilcox <Matthew.Wilcox@genedata.com>

I bet the mailing list software doesn't like the non-English headers.

Mike

-- 
428102.37 371017.85


From - Thu Nov 08 21:15:48 2018
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From: Ulrich.Strelow@schering.de
Newsgroups: gmane.linux.ports.parisc
Subject: Antwort: [parisc-linux] serial console
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Today I have managed to setup my 715/33 to use a serial console so that I
am able to capture the boot messages for future tests. I did the following:

1. Connect the 715/33 to a PC via a null-modem cable.
2. Hold down the ESC key to stop the automatic selection process.
3. Enter "a" to get the BOOT_ADMIN> prompt
4. At this prompt issue the command: PATH console rs232_a

This switches the console path from "graphics_1" to the first serial port
(/dev/tty0p0 in HP-UX language).

I hope this helps. Maybe the syntax is different on other workstation
models (I think the 800 server models use the hardware path instead of
symbolic names).

Ulrich
---------------------------------------------
Ulrich Strelow
<ulrich.strelow@schering.de or
ulrich_strelow@yahoo.com>
Berlin, Germany




Mike Shaver <shaver@netscape.com> am 10.07.99 20:53:39


An:   parisc-linux@thepuffingroup.com
Kopie:     (Blindkopie: Ulrich Strelow/BE/USR/SHG)


Thema:    [parisc-linux] serial console





I have a serial console cable that came with my A180C, but I can't get
the silly box to talk to it.

I've tried with another known-good cable (it works with my Indy), and
still nothing.  What do I need to do to activate it?  I tried unplugging
the web console from the network, and rebooting with the serial cable
connected and minicom running, but still no joy.

Also, is there an equivalent to Sun's L1-A or the Indy's
send-break-over-serial that will get me back to the PROM in the event
that Linux jumps to east nowhere?  Or do I have to power cycle?

Mike

--
275134.15 242554.19

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From - Thu Nov 08 21:15:48 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: E-Mail Problems..
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Sorry to disturb the list with my private mail problems !

If anyone has an idea, I would really like to solve this problem here, else I
will STOP this thread and write my mails only with Win95 (of course I would
prefer Linux much more...).

Thanks,
Helge.

Please read on, if you want to help me:
----------------------------------------


Mike Shaver schrieb:

> Helge Deller wrote:
> >
> > If this message goes through, does anybody have any ideas, why my mails
> > sent from Netscape/Win95 goes through to the list, but those from
> > Netscape/Linux not ????
> > Thanks,
> > Helge.
> > (This message was sent with Netscape/Win95, the message below with
> > Netscape/Linux).
> >
> >
> > Betreff: Re: [parisc-linux] PDC woes
> > Datum: Mon, 12 Jul 1999 01:08:45 +0200
> > Von: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
> > An: Matthew Wilcox <Matthew.Wilcox@genedata.com>
>
> I bet the mailing list software doesn't like the non-English headers.
>
> Mike

Yes, of course you are right, but it was my fault to ask the question like I
did....(and I thought, that it won't get through!).
Here are the original-Mail-headers (Netscape automatically tranlated the second
mail-header, before it was inserted into my forwared mail):

******************************************************
Mail-Header, which went trough (Netscape/Win95)
--------------------------------------------------------------------
X-Mozilla-Status: 8001
X-Mozilla-Status2: 00000000
Message-ID: <3789ACA8.20302CBA@ruhr-uni-bochum.de>
Date: Mon, 12 Jul 1999 10:51:52 +0200
From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
X-Mailer: Mozilla 4.51 [de]C-CCK-MCD QXW03200  (Win95; I)
X-Accept-Language: de,en
MIME-Version: 1.0
To: parisc-linux <parisc-linux@thepuffingroup.com>
Subject: [Fwd: Re: [parisc-linux] PDC woes]
Content-Type: multipart/mixed;
 boundary="------------447487C03A72049BA408CDB6"

Dies ist eine mehrteilige Nachricht im MIME-Format.
--------------447487C03A72049BA408CDB6
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit

If this message goes through, does anybody have any ideas, why my mails
sent from Netscape/Win95 goes through to the list, but those from
Netscape/Linux not ????
Thanks,
Helge.
(This message was sent with Netscape/Win95, the message below with
Netscape/Linux).
.<I deleted the rest..>

*********************************************************

Here is the Mail-Header, which did NOT went through (Netscape/Linux)
----------------------------------------------------
X-Mozilla-Status: 9011
X-Mozilla-Status2: 00000000
Message-ID: <378923FD.65F5D7BF@ruhr-uni-bochum.de>
Date: Mon, 12 Jul 1999 01:08:45 +0200
From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
X-Mailer: Mozilla 4.5 [en] (X11; I; Linux 2.2.9 i686)
X-Accept-Language: en
MIME-Version: 1.0
To: Matthew Wilcox <Matthew.Wilcox@genedata.com>
CC: parisc-linux@thepuffingroup.com
Subject: Re: [parisc-linux] PDC woes
References: <19990711011852.A25925@mencheca.ch.genedata.com>
Content-Type: multipart/mixed;
 boundary="------------4621FAFCBE0BBA24E978776D"

This is a multi-part message in MIME format.
--------------4621FAFCBE0BBA24E978776D
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit

Matthew Wilcox wrote:

> Philipp asked me t........
.<I deleted the rest..>

***********************************************************

Does anybody has an idea ??
Please notice, that Netscape/95 is english & german (and worked!), while
Netscape/Linux is the english-only-version (and didn't worked!).

Thanks,
Helge.


From - Thu Nov 08 21:15:48 2018
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] serial console
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Xref: news.gmane.org gmane.linux.ports.parisc:9720

On Sat, Jul 10, 1999 at 02:53:39PM -0400, Mike Shaver wrote:
> I have a serial console cable that came with my A180C, but I can't get
> the silly box to talk to it.

disconnect the web console port. Whenever I have the web console port
connected to the hub, the serial console doesn't work for. As soon
as I unplug the web console the serial console comes up immidiatly. I
haven't notice this behaviour until I got enough cables today:-)

> Also, is there an equivalent to Sun's L1-A or the Indy's
> send-break-over-serial that will get me back to the PROM in the event
> that Linux jumps to east nowhere?  Or do I have to power cycle?

So far everbody denied the existance of that essentiell (at least for
kernel hackers) feature.

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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subscribe


From - Thu Nov 08 21:15:48 2018
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From: Giles Lean <giles@nemeton.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] serial console
Date: Tue, 13 Jul 1999 18:50:30 +1000
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On Mon, 12 Jul 1999 23:10:19 +0200  Thomas Bogendoerfer wrote:

> > Also, is there an equivalent to Sun's L1-A or the Indy's
> > send-break-over-serial that will get me back to the PROM in the event
> > that Linux jumps to east nowhere?  Or do I have to power cycle?
> 
> So far everbody denied the existance of that essentiell (at least for
> kernel hackers) feature.

Historically on HP servers (series 800 machines) ^B gets you to "PROM"
mode.  It has varied on different machines whether this is enabled and
disabled by a key, or a switch on the back, or is not able to be
disabled at all.

Some newer machines (some D series, all A series, all R series) don't
have this functionality out unless an "access port" card is added to
the system.  These systems do still have a TOC (Transfer of Control)
button so that dumps can be taken.

I'll dig out the part number for the access port card if anyone cares;
I don't have it to hand right now.

Regards,

Giles


From - Thu Nov 08 21:15:48 2018
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From: Philipp Rumpf <prumpf@suse.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Status
Date: Wed, 14 Jul 1999 04:39:14 +0200
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Hello everybody,
I thought it was about time I gave you all a quick update about what I am
doing.

First, interruptions are being well.  We can do the return thing now too,
and I'm pretty sure the number of bugs hiding there is close to zero. We
will need some changes here before userspace will really work and at the
time we'll virtually map most of the kernel.

Interrupts are about working.  We don't free them yet and the code isn't
really tested, but the timer interrupt works very much like it is supposed
to.

I currently try to get some MMU code working so we can get a first impres-
sion of what userspace will look like.

	Philipp


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From: Frank Benke <frank.benke@student.uni-tuebingen.de>
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Subject: [parisc-linux] 735 experience ??
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are there any experiences with linux booting on the 735/125 ?

i will test these days.


regards frank
-- 


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Xref: news.gmane.org gmane.linux.ports.parisc:9725

On Thu, Jul 15, 1999 at 10:38:53PM +0200, Frank Benke wrote:
> 
> are there any experiences with linux booting on the 735/125 ?
> 
> i will test these days.

I'd love someone to test it.. can you compile kernels yourself or would
you like a precompiled one?

[I trust you are aware that you'll get masses of debugging crud followed
by your computer hanging, and nowhere even close to a prompt yet.]

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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> I'd love someone to test it.. can you compile kernels yourself or would
> you like a precompiled one?

guess i will taje the challenge to compile one myself. precompiled is the 
fallback strategy.

> [I trust you are aware that you'll get masses of debugging crud followed
> by your computer hanging, and nowhere even close to a prompt yet.]

well aware ;) 

.
.
.

but when i'm able to compile and test , i might be able to contribute.

regards frank


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] 735 experience ??
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Xref: news.gmane.org gmane.linux.ports.parisc:9727

I tried a few days ago (July 6) and sent the console output to Alex Devries.
There were problems with cpu speed, cpu level, and the stack/user address
space seemed to encompass all memory including the kernel.  The kernel
did determine the amount of memory in the machine and the machine type
correctly.

I tried again a few days later and the boot just hung with no messages
at all.  I think the hpux ipl must have had problems with the object file.
Haven't tried the most recent version.

> 
> On Thu, Jul 15, 1999 at 10:38:53PM +0200, Frank Benke wrote:
> > 
> > are there any experiences with linux booting on the 735/125 ?
> > 
> > i will test these days.
> 
> I'd love someone to test it.. can you compile kernels yourself or would
> you like a precompiled one?
> 
> [I trust you are aware that you'll get masses of debugging crud followed
> by your computer hanging, and nowhere even close to a prompt yet.]
> 
> -- 
> Matthew Wilcox <willy@bofh.ai>
> "Windows and MacOS are products, contrived by engineers in the service of
> specific companies. Unix, by contrast, is not so much a product as it is a
> painstakingly compiled oral history of the hacker subculture." - N Stephenson
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 


-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Xref: news.gmane.org gmane.linux.ports.parisc:9728

On Thu, Jul 15, 1999 at 05:14:35PM -0400, John David Anglin wrote:
> I tried a few days ago (July 6) and sent the console output to Alex Devries.
> There were problems with cpu speed, cpu level, and the stack/user address
> space seemed to encompass all memory including the kernel.  The kernel
> did determine the amount of memory in the machine and the machine type
> correctly.
> 
> I tried again a few days later and the boot just hung with no messages
> at all.  I think the hpux ipl must have had problems with the object file.
> Haven't tried the most recent version.

You should :-)  Helge checked in some code today which apparently fixes
the booting-via-hpux problems.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


From - Thu Nov 08 21:15:49 2018
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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: 735 expierience....
Date: Fri, 16 Jul 1999 03:22:17 +0200
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Hello !
<nl><nl>

Yes, I think the amount of memory/CPU-Data/and booting should be really f=
ine now for all machines !
I would love to hear some booting results too, so please go on and check =
!
<nl><nl>

Right now the boot-process hangs, but when you reach the point, that the =
LED's are blinking "in-row", then all what the kernel does right now is o=
k.
Yesterday Phillipp had some code in, where you could see the timer-IRQ wo=
rking, but he checked in again an older version of his code (I don't know=
 why?), so now the kernel hangs at the bogompis-check.
<nl><nl>

Currently I'm working at the framebuffer-support for the gecko-series (71=
2/715) and right now in the moment I see a nice Yellow-White graphic-disp=
lay on my 715 !
I'm sad, that I have to reduce my coding drastically in the next 2 weeks,=
 but we will see......
<nl><nl>

Helge.


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To: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Matthew Wilcox schrieb:

> On Thu, Jul 15, 1999 at 05:14:35PM -0400, John David Anglin wrote:
> > I tried a few days ago (July 6) and sent the console output to Alex Devries.
> > There were problems with cpu speed, cpu level, and the stack/user address
> > space seemed to encompass all memory including the kernel.  The kernel
> > did determine the amount of memory in the machine and the machine type
> > correctly.
> >
> > I tried again a few days later and the boot just hung with no messages
> > at all.  I think the hpux ipl must have had problems with the object file.
> > Haven't tried the most recent version.
>
> You should :-)  Helge checked in some code today which apparently fixes
> the booting-via-hpux problems.

Yes, it would be great if someone could give me feedback if booting works now on
most machines...
Right now the kernel should start up and stop at "Calibrating delay loop..." and
your led's are blinking "in row"...
Yesterday Phillipp checked code in, where you could see the timer-irq running, but
he checked it out again (I don't know why).

Maybe I should also say, that I currently worked a little at the
ITE/Framebuffer-code and until now I already can switch to graphics-mode and show
some nice white-yellow blocks on the screen....
It's too early to commit this code, but maybe in 2-3 weeks I will check it in.

Helge Deller.


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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Sorry for the double mail, but I have some problems here with netscape/Linux....
Helge.


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From: Ulrich.Strelow@schering.de
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/33 experience and one question
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Here is my experience booting the kernel on a 715/33 using hpux:

ISL> hpux /stand/vmlinux

Boot
: disk(2/0/1.6.0.0.0.0.0;0)/stand/vmlinux
389128 + 98304 + 68064 start 0x12000


The Kernel has started...
You are running a 33MHz PA-RISC-Machine with 48MB of RAM.
Free memory was at 0x000AB100 (=stackbase, stacksize=0x00040000).
Free memory now at 0x000EB100 and ends at 0x03000000.
Linux version 2.2.1 (root@be5359) (gcc version 2.8.1) #2
 Fri Jul 16 10:17:36 METDST 1999
command_line: <none>

exponent = 1028 mantissa = 1092275 result = 33328125
processor       : 0
vendor_id       : Hewlett Packard (HP)
cpu family      : PA-RISC 1.1
revision        : 4
model           : 9000/715
model name      : Scorpio Jr.(715/33)
hversion        : 0x00003110
sversion        : 0x00000481
sw_id           : 2015972664
shadow registers: yes
cpu category    : category A
cpu level       : level 1
cpu MHz         : 33.00333500
I-cache         : 64 KB
D-cache         : 64 KB (WB)
ITLB entries    : 120
DTLB entries    : 120 - shared with ITLB


PUFFINLOOKHERE! now initializing CR14
PUUIFF fault_vector is 15800
secret message is "cows can fly"
interrupted with code 142, regs 00000000
IAOQ: 00000000 00000000
PSW: 00000000
EIR: 00000000
interrupted with code 241, regs 00000000
IAOQ: 00000000 00000000
Calibrating delay loop...

Then it hangs with no leds blinking ...

The kernel messages are the same using the PARISC/Linux Bootstrap and
rbootd.

And then my question:
I think the 715/33 does  not  have a Dino or a Lasi chip (am I right?), but
 does it have a gecko (and what is this?)?

Ulrich
---------------------------------------------
Ulrich Strelow
<ulrich.strelow@schering.de or
ulrich_strelow@yahoo.com>
Berlin, Germany



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Subject: Re: [parisc-linux] 715/33 experience and one question
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On Fri, Jul 16, 1999 at 01:54:18PM +0200, Ulrich.Strelow@schering.de wrote:
[successful boot report snipped]
> And then my question:
> I think the 715/33 does  not  have a Dino or a Lasi chip (am I right?), but
>  does it have a gecko (and what is this?)?

Right, the 715 has neither DINO nor LASI.  The chips inside are labelled
OLIN and SHINKO.  http://www.thepuffingroup.com/parisc/hp9000_models.html
has no details on these chips.  Alex tells me he's trying to get
documentation on these chips, but I'll have to be patient.  The major
stumbling block with these machines is likely to be the SCSI controller
-- it's an NCR53C700 which is apparently a very nasty device; much more
nasty than the 710 which is built into LASI.

In my copious spare time, I'm stumbling through the Utah Mach sources,
trying to glean details about OLIN and SHINKO but I've had no success
so far.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715/33 experience and one question
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Ulrich.Strelow@Schering.DE schrieb:

> Here is my experience booting the kernel on a 715/33 using hpux:
>
> ISL> hpux /stand/vmlinux
>
> Boot
> : disk(2/0/1.6.0.0.0.0.0;0)/stand/vmlinux
> 389128 + 98304 + 68064 start 0x12000
>
> The Kernel has started...
> You are running a 33MHz PA-RISC-Machine with 48MB of RAM.
> Free memory was at 0x000AB100 (=stackbase, stacksize=0x00040000).
> Free memory now at 0x000EB100 and ends at 0x03000000.
> Linux version 2.2.1 (root@be5359) (gcc version 2.8.1) #2
>  Fri Jul 16 10:17:36 METDST 1999
> command_line: <none>
>
> exponent = 1028 mantissa = 1092275 result = 33328125
> processor       : 0
> vendor_id       : Hewlett Packard (HP)
> cpu family      : PA-RISC 1.1
> revision        : 4
> model           : 9000/715
> model name      : Scorpio Jr.(715/33)
> hversion        : 0x00003110
> sversion        : 0x00000481
> sw_id           : 2015972664
> shadow registers: yes
> cpu category    : category A
> cpu level       : level 1
> cpu MHz         : 33.00333500
> I-cache         : 64 KB
> D-cache         : 64 KB (WB)
> ITLB entries    : 120
> DTLB entries    : 120 - shared with ITLB
>
> PUFFINLOOKHERE! now initializing CR14
> PUUIFF fault_vector is 15800
> secret message is "cows can fly"

til this point all is OK !


>
> interrupted with code 142, regs 00000000
> IAOQ: 00000000 00000000

There should be something different than zero here....

>
> PSW: 00000000
> EIR: 00000000
> interrupted with code 241, regs 00000000
> IAOQ: 00000000 00000000
> Calibrating delay loop...
>
> Then it hangs with no leds blinking ...

did you tried before or after Phillip's last commit (head.s changed) ?

> The kernel messages are the same using the PARISC/Linux Bootstrap and
> rbootd.

Great!

> And then my question:
> I think the 715/33 does  not  have a Dino or a Lasi chip (am I right?), but
>  does it have a gecko (and what is this?)?

I think it has a lasi-chip...
I don't know until now what gecko is.... (isn't it the same as lasi??).

> Ulrich

Helge.


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Subject: Re: [parisc-linux] 715/33 experience and one question
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> > PUFFINLOOKHERE! now initializing CR14
> > PUUIFF fault_vector is 15800
> > secret message is "cows can fly"
> 
> til this point all is OK !
> 
> 
> >
> > interrupted with code 142, regs 00000000
> > IAOQ: 00000000 00000000
> 
> There should be something different than zero here....

bzzt. Helge, please don't comment on code you haven't written. This is okay.


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Subject: Antwort: Re: [parisc-linux] 715/33 experience and one question
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Hello Helge,
>>
>> PSW: 00000000
>> EIR: 00000000
>> interrupted with code 241, regs 00000000
>> IAOQ: 00000000 00000000
>> Calibrating delay loop...
>>
>> Then it hangs with no leds blinking ...

>did you tried before or after Phillip's last commit (head.s changed) ?

head.S is Revision 1.23  1999/07/15 13:52:59  deller

Ulrich
---------------------------------------------
Ulrich Strelow
<ulrich.strelow@schering.de or
ulrich_strelow@yahoo.com>
Berlin, Germany



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From: Bill Katz <billk@sr.hp.com>
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Subject: Re: [parisc-linux] 715/33 experience and one question (fwd)
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|> And then my question:
|> I think the 715/33 does  not  have a Dino or a Lasi chip (am I right?), but
|>  does it have a gecko (and what is this?)?
|
|I think it has a lasi-chip...
|I don't know until now what gecko is.... (isn't it the same as lasi??).
|

The 715/33 does NOT have either LASI or DINO.  It uses an older 
I/O chip known as ASP.  ASP connects the processor bus to several 
external chips, including the NCR 53c710, Intel LAN and WD 16C552 (?
I'm doing this from memory) 2-serial/parallel chip.  It uses the PA7100
CPU which does not have GSC.

"Gecko" is the codename for the 712. The 715/33 has nothing to do
with Gecko.  Later 715s (/64, /80, and /100) ARE very similar to 
Gecko, and use the PA7100LC/LASI chipset (but not DINO).


	-Bill


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Subject: Re: [parisc-linux] 715/33 experience and one question (fwd)
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|Right, the 715 has neither DINO nor LASI.  The chips inside are labelled
|OLIN and SHINKO.  http://www.thepuffingroup.com/parisc/hp9000_models.html
|has no details on these chips.  Alex tells me he's trying to get
|documentation on these chips, but I'll have to be patient.  The major
|stumbling block with these machines is likely to be the SCSI controller
|-- it's an NCR53C700 which is apparently a very nasty device; much more
|nasty than the 710 which is built into LASI.
|
|In my copious spare time, I'm stumbling through the Utah Mach sources,
|trying to glean details about OLIN and SHINKO but I've had no success
|so far.

Whoops.  My previous comments about ASP apply to the even earlier
machines (720/730/735).  I also didn't know about the differences
between 5sC700 and 53C710.

I'm sure we've got this data stashed away SOMEWHERE...

	-Bill


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Subject: Re: [parisc-linux] 715/33 experience and one question
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> Date: Fri, 16 Jul 1999 14:14:13 +0200
> From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
> To: Ulrich.Strelow@schering.de
> Subject: Re: [parisc-linux] 715/33 experience and one question
> 
> On Fri, Jul 16, 1999 at 01:54:18PM +0200, Ulrich.Strelow@schering.de wrote:
> [successful boot report snipped]
> > And then my question:
> > I think the 715/33 does  not  have a Dino or a Lasi chip (am I right?), but
> >  does it have a gecko (and what is this?)?
> 
> Right, the 715 has neither DINO nor LASI.  The chips inside are labelled
> OLIN and SHINKO.  http://www.thepuffingroup.com/parisc/hp9000_models.html
> has no details on these chips.  Alex tells me he's trying to get
> documentation on these chips, but I'll have to be patient.  The major
> stumbling block with these machines is likely to be the SCSI controller
> -- it's an NCR53C700 which is apparently a very nasty device; much more
> nasty than the 710 which is built into LASI.
> 
> In my copious spare time, I'm stumbling through the Utah Mach sources,
> trying to glean details about OLIN and SHINKO but I've had no success
> so far.
> 

We never had a 715/33 so I don't know anything about them.  But someone
else said they had the ASP which is the "original snakes" IO subsystem
(705/710/720/730/750).  The ASP is quite similar to the LASI, and there
is plenty of code in the Mach sources.

Hit your HP sources up for:

	Corba/Coral I/O Subsystem External Reference Specification

Don't have a part or drawing number unfortunately.  We have version 1.43
from November 1990.  Looks like it came out of Cupertino.

As for the SCSI controller, the 700 isn't that different from the 710.
Had a few bugs though as I recall and our driver/script did not work
around all of them.


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Mike Hibler wrote:
> Hit your HP sources up for:
> 
> 	Corba/Coral I/O Subsystem External Reference Specification

typo: I think Mike meant "Cobra" - as in the snake.

> Don't have a part or drawing number unfortunately.  We have version 1.43
> from November 1990.  Looks like it came out of Cupertino.
> 
> As for the SCSI controller, the 700 isn't that different from the 710.
> Had a few bugs though as I recall and our driver/script did not work
> around all of them.

The two primary authors of HP-UXs c720 driver (which supported c710)
left HP at least a year ago. I'll try to interest them in helping
with the parisc-linux but no promises...

grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Subject: Re: [parisc-linux] 715/33 experience and one question
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> To: Mike Hibler <mike@fast.cs.utah.edu>
> cc: parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] 715/33 experience and one question 
> Date: Fri, 16 Jul 1999 09:10:51 -0700
> From: Grant Grundler <grundler@cup.hp.com>
> 
> Mike Hibler wrote:
> > Hit your HP sources up for:
> > 
> > 	Corba/Coral I/O Subsystem External Reference Specification
> 
> typo: I think Mike meant "Cobra" - as in the snake.
> 
Right you are, "Cobra/Coral".

I'd take a spitting, hissing Cobra over CORBA any day...


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: Antwort: Re: [parisc-linux] 715/33 experience and one question
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> Hello Helge,
> >>
> >> PSW: 00000000
> >> EIR: 00000000
> >> interrupted with code 241, regs 00000000
> >> IAOQ: 00000000 00000000
> >> Calibrating delay loop...
> >>
> >> Then it hangs with no leds blinking ...
> 
> >did you tried before or after Phillip's last commit (head.s changed) ?
> 
> head.S is Revision 1.23  1999/07/15 13:52:59  deller

My experience with my 735/99 is essentially the same.  With the same revision
of head.S, the boot hangs at the same spot with no leds blinking.  No dino
is found.  Here is the final output:

interrupted with code 142, regs 00000000
IAOQ: 00000000	0000000a
PSW:  00000000
EIR:  80000000
interrupted with code 241, regs 0000000a
IAOQ: 00000000	0000000a
Calibrating delay loop...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Philipp Rumpf <prumpf@suse.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:9743

> > head.S is Revision 1.23  1999/07/15 13:52:59  deller
> 
> My experience with my 735/99 is essentially the same.  With the same revision
> of head.S, the boot hangs at the same spot with no leds blinking.  No dino
> is found.  Here is the final output:

Try again, please. (I seem to have missed one file during my morning sync,
which I tend to blame on the "morning" part).


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From: Bill Katz <billk@sr.hp.com>
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Subject: Re: Antwort: Re: [parisc-linux] 715/33 experience and one question (fwd)
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|> Hello Helge,
|> >>
|> >> PSW: 00000000
|> >> EIR: 00000000
|> >> interrupted with code 241, regs 00000000
|> >> IAOQ: 00000000 00000000
|> >> Calibrating delay loop...
|> >>
|> >> Then it hangs with no leds blinking ...
|> 
|> >did you tried before or after Phillip's last commit (head.s changed) ?
|> 
|> head.S is Revision 1.23  1999/07/15 13:52:59  deller
|
|My experience with my 735/99 is essentially the same.  With the same revision
|of head.S, the boot hangs at the same spot with no leds blinking.  No dino
|is found.  Here is the final output:
|
|interrupted with code 142, regs 00000000
|IAOQ: 00000000	0000000a
|PSW:  00000000
|EIR:  80000000
|interrupted with code 241, regs 0000000a
|IAOQ: 00000000	0000000a
|Calibrating delay loop...

The 735/99 and 715/33 (as well as the 715/50 /75) are all essentially the
same computers (as well as 725 /75, ...).  If any of them find a DINO,
we've got real problems ;-)

They all use the PCX-T (aka PA7100, aka T-Bird) processor, with the
original snakes CEC.

	-Bill


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Subject: Re: Antwort: Re: [parisc-linux] 715/33 experience and one question (fwd)
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> Subject: Re: Antwort: Re: [parisc-linux] 715/33 experience and one question (fwd)
> To: parisc-linux@thepuffingroup.com
> Date: Fri, 16 Jul 1999 13:34:50 -0700 (PDT)
> From: Bill Katz <billk@sr.hp.com>
> 
> ...
> The 735/99 and 715/33 (as well as the 715/50 /75) are all essentially the
> same computers (as well as 725 /75, ...).  If any of them find a DINO,
> we've got real problems ;-)
> 
> They all use the PCX-T (aka PA7100, aka T-Bird) processor, with the
> original snakes CEC.
> 
Not to further confuse things but...

The 735/755 use the "Hardball IO subsystem" which is ASP plus
FWD SCSI (NCR53C720), optional FDDI (??), and CD quality audio (CS4215).

I know the 715s had the CD audio, but they don't have FWD SCSI.

Of course, the 715s above should not be confused with the 715/{64,80,100}
which use the "Gecko IO subsystem" aka LASI.  But I'm guessing that I am
not helping much at this point... :-)


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Subject: Re: Antwort: Re: [parisc-linux] 715/33 experience and one question
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Cc: Ulrich.Strelow@Schering.DE, Helge.Deller@ruhr-uni-bochum.de,
        parisc-linux@thepuffingroup.com
To: prumpf@suse.de (Philipp Rumpf)
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In-Reply-To: <19990716215106.P19641@suse.de> from "Philipp Rumpf" at Jul 16, 99 09:51:06 pm
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> > > head.S is Revision 1.23  1999/07/15 13:52:59  deller
> > 
> > My experience with my 735/99 is essentially the same.  With the same revision
> > of head.S, the boot hangs at the same spot with no leds blinking.  No dino
> > is found.  Here is the final output:
> 
> Try again, please. (I seem to have missed one file during my morning sync,
> which I tend to blame on the "morning" part).

...
interrupted with code 142, regs 00000000
IAOQ:	00000000	0000000a
PSW:	00000009
EIR:	00000000
interrupted with code 241, regs 00000000
IAOQ:	00000000	0000000a
Calibrating delay loop...
132.00 BogoMIPS
interrupted with code 17, regs 000ad600
IAOQ:	000211c0	000211c4
Kernel panic: here

Leds 1, 2, 3 and 4 were on.

System.map:

...
00021148 t $CODE$
000211a8 T free_initmem
000211b0 T do_check_pgt_cache
000211b8 T mem_init
000211c8 T __bad_pte_kernel
000211d0 T __bad_pte
000211d8 T get_pte_kernel_slow
...
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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Subject: Re: [parisc-linux-cvs] prumpf
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Am Sat, 17 Jul 1999 schrieb Philipp Rumpf:
> Update of /home/cvs/parisc/linux/init
> In directory puffin.external.hp.com:/tmp/cvs-serv22800/init
> 
> Modified Files:
> 	main.c 
> Log Message:
> another part of the endless "get bogomips to work, go to bed, come back
> to find it non-working series". argh.


YOURE THE MAN !!

Now the bogompis-check also works here (the kernel hangs afterwards, but this
is another problem I think).
Thanks,
Helge.


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Subject: Re: [parisc-linux] licencing-question... ?
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Xref: news.gmane.org gmane.linux.ports.parisc:9748

>   The above copyright notice and this permission notice shall be
>   included in all copies or substantial portions of the Software.
> 
> The sticking point could be the copyright & permissions having to

The copyright in code isnt a problem, in supporting docs can be an issue.

> documentation if, say, Red Hat sold Red Hat 8.0 for the PA-RISC? 
> Would the user documentation have to include the copyright notice?

What is documentation. Is the web site documentation etc etc.. 

The easiest thing is to get the Utah folks to add "Nothing in this 
license that is shown to be a restriction within the meaning of the GNU
public license shall hold when the code is distributed under the terms
of the GNU public license" or similar.




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From: Arnaud.ATOCH@oecd.org
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] 715/33 experience and one question
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Hi,

I do have some 712/715/720/730/735 . If you need some informtions or your
kernel to be tested on these machines, please let know if I can help. Btw
I'm far from a kernel developper.

Arnaud Atoch
O.E.C.D.
2 Rue Andre PAscal
75775 Paris Cedex 16
France

-----Original Message-----
From: Mike Hibler [mailto:mike@fast.cs.utah.edu]
Sent: Friday, July 16, 1999 17:53
To: Matthew.Wilcox@genedata.com; Ulrich.Strelow@Schering.DE
Cc: parisc-linux@thepuffingroup.com
Subject: Re: [parisc-linux] 715/33 experience and one question


> Date: Fri, 16 Jul 1999 14:14:13 +0200
> From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
> To: Ulrich.Strelow@schering.de
> Subject: Re: [parisc-linux] 715/33 experience and one question
> 
> On Fri, Jul 16, 1999 at 01:54:18PM +0200, Ulrich.Strelow@schering.de
wrote:
> [successful boot report snipped]
> > And then my question:
> > I think the 715/33 does  not  have a Dino or a Lasi chip (am I right?),
but
> >  does it have a gecko (and what is this?)?
> 
> Right, the 715 has neither DINO nor LASI.  The chips inside are labelled
> OLIN and SHINKO.  http://www.thepuffingroup.com/parisc/hp9000_models.html
> has no details on these chips.  Alex tells me he's trying to get
> documentation on these chips, but I'll have to be patient.  The major
> stumbling block with these machines is likely to be the SCSI controller
> -- it's an NCR53C700 which is apparently a very nasty device; much more
> nasty than the 710 which is built into LASI.
> 
> In my copious spare time, I'm stumbling through the Utah Mach sources,
> trying to glean details about OLIN and SHINKO but I've had no success
> so far.
> 

We never had a 715/33 so I don't know anything about them.  But someone
else said they had the ASP which is the "original snakes" IO subsystem
(705/710/720/730/750).  The ASP is quite similar to the LASI, and there
is plenty of code in the Mach sources.

Hit your HP sources up for:

	Corba/Coral I/O Subsystem External Reference Specification

Don't have a part or drawing number unfortunately.  We have version 1.43
from November 1990.  Looks like it came out of Cupertino.

As for the SCSI controller, the 700 isn't that different from the 710.
Had a few bugs though as I recall and our driver/script did not work
around all of them.

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From: smoret-puffin@genocide.net
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Subject: [parisc-linux] HP9000 J210
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I've got a HP9000 J210 sitting next to me that I'd like to offer help with.
I'm able to get precompiled kernels to begin to boot (they give the 
secret message), but I am unable to get the .lif generator to compile so I 
can compile my own kernels.

If someone could offer me some assistance I would appreciate it. Although
I'm unaware of what type of equipment (SCSI controller, ethernet) is in
my J210 if someone knows what I should open up to find out I'd help there
too. 

So far what I know about the J210: PA-RISC 7200 120MHz CPU, 512meg ram
no framebuffer, 10bT + AUI ethernet, and it uses bootp (rather than rbootd)
to boot.

I'd love to help out,

-- 
Steve Moret
smoret@uci.edu


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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Subject: Re: [parisc-linux] HP9000 J210
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Hi Steve !

Am Mon, 19 Jul 1999 schrieb smoret-puffin@genocide.net:
> I've got a HP9000 J210 sitting next to me that I'd like to offer help with.
> I'm able to get precompiled kernels to begin to boot (they give the 
> secret message), but I am unable to get the .lif generator to compile so I 
> can compile my own kernels.

Whats the problem with it ??
You know, that you have to compile the kernel and the LIF currently on hpux
only ??
The cross-compiler doesnt work yet !

> 
> If someone could offer me some assistance I would appreciate it. Although
> I'm unaware of what type of equipment (SCSI controller, ethernet) is in
> my J210 if someone knows what I should open up to find out I'd help there
> too. 
> 
> So far what I know about the J210: PA-RISC 7200 120MHz CPU, 512meg ram
> no framebuffer, 10bT + AUI ethernet, and it uses bootp (rather than rbootd)
> to boot.

Does the current kernel shows you the processor as "7200" ?
> 
> I'd love to help out,
> 
> -- 
> Steve Moret
> smoret@uci.edu

Helge Deller.


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 7100 and 7300 PA RISC 1.1 docs
Date: Tue, 20 Jul 1999 01:52:31 -0400
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With the guidance of The Puffin Group, Hewlett Packard has released
documentation on the PCXL and PCXL2 PA RISC 1.1 CPUs.  These documents
can be found at the PA RISC Linux documentation page, at:

http://www.thepuffingroup.com/parisc/documentation.html

The documents seem to have all we need for MMU implementations.

I know on one of the PDF files the pages are in reverse, yes, we're
working on that.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] HP9000 J210
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Am Tue, 20 Jul 1999 schrieben Sie:
> > Whats the problem with it ??
> > You know, that you have to compile the kernel and the LIF
> > currently on hpux
> > only ??
> > The cross-compiler doesnt work yet !
> That would explain why it wont work. Is there anything I can do to get
> recent kernels? I have a plethora of non-HP machines at my disposal and
> could (if they would work) easily do cross-compiles in minutes. 

Yes, thats the problem I have too. Currently I have to start und shutdown my
HP-box every time I built a new kernel. Cross-compiling could speed up the
programming-phase drastically. Is anybody currently working on that issue ?
The bootloader already has some code to load ELF-images too.

> I would also
> be willing to host a distribution site for kernel images (if this would
> help).
> 
> I don't currently have a HP-UX license and would rather not install it.
> Although I do have 10.?? media.
> 
> > Does the current kernel shows you the processor as "7200" ?
> No the current kernel says:
> cpu family      : PA RISC 1.1
> revision        : 4
> model           : 9000/770/J210
> model name      : SkyHawk 120
> hversion        : 0x00005860
> sversion        : 0x00000491
> sw_id           : 2004779464
> shadow registers: no
> cpu category    : category A
> cpu level       : level_0
> cpu MHz         : 120.00000000
> I-cache         : 256 KB
> D-cache         : 256 KB (WB)
> ITLB entries    : 120
> DLTB entries    : 120 (shared with ITLB)

This is an older kernel-image. The newest one has a line showing "cpu : PAyxxx"
and info about the BTLB. I think the message "level 0" is wrong here too, but
that should already be fixed in the cvs.

> I hope all this info helps, I'd be happy to give more if you can direct me,

Could you please try a newer image later...

> --
> Steve Moret
> smoret@uci.edu

Helge.


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] OSF-clean source-code..
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Hello List !

I committed some changes in varios files, so that we now are not very far from
OSF-clean code in the tree...

My intention is, to remove pdc.h completely in short time, and rewrite
all used #defines and structures (GPLd) in pdc-linux.h (thanks to Paul Lahaie).
When the transition is done, pdc.h will be removed, and pdc-linux will replace
pdc.h completely.

Please continue to #inlclude pdc.h in the sources only. This way the transition
could work clean to the tree...

Helge Deller.


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux-cvs] pjlahaie, interrupted with code 28....
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Cc: parisc-linux@thepuffingroup.com, Philipp Rumpf <prumpf@suse.de>
To: "Paul J.Y.Lahaie" <pjlahaie@ottawa.com>
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Am Wed, 21 Jul 1999 schrieb Paul Lahaie:
> Update of /home/cvs/parisc/linux/drivers/gecko
> In directory puffin.external.hp.com:/tmp/cvs-serv735
> 
> Modified Files:
> 	dino.c 
> Log Message:
> Fix dino probing code so that systems without Dinos do not crash while trying
> to read the configuration registers.

Hi Paul !

Those changes seem to initialize the interrupt-routine, so that I get the whole
time  "Interrupted with code 28, regs xxxxx"...... (I dont have a dino in my
hp-machine!)

Could you/someone maybe take a look into it ?
It does not happen, when you dont include DINO-support into the kernel.
Please correct me, if Im totally wrong here.....

PS: This also happened here with my machine, before I applied/committed my
latest changes...

Helge.


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux-cvs] pjlahaie, interrupted with code 28....
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Hi Paul, 
Hi Philipp !

Sorry for my last mail, but I found some more background-info for my
last mail:

I think its something wrong in the interrupt-routine (but Im really not sure
about that !!), since when I dont use DINO/PCI-support the kernel freezes too.
Info:
I added a stopkernel_with_rolling_leds()-call (endless-loop in setup.c)
directly behind the "POSIX"-text in main.c. This means, that the kernel should
loop forever in this routine. But the kernel freezes after some time,
at other boot-ups I get endless messages "Interrupted with code 9" after some time 
behind the output of "POSIX...". Could it be, that the stack
overflows after some time (maybe because of interrupts in the background, which
does not restore the stack correctly (Philipp??)) ?

Maybe also my kernel-origin-change in the Makefile to 0x10000 (we used
0x12000 before) could be the reason ? I dont know yet...

Comments ?

Helge.


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From: Hannu Martikka <martikka@stybba.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] syntax error in dino.c (215)
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Hi!

Could someone fix this in dino.c (line 215):

                printk("KERN_WARNING "dino: can't allocate IRQ\n");
-> 
                printk(KERN_WARNING "dino: can't allocate IRQ\n");
Thanks...

- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


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From: "mgalgoci@redhat.com" <mgalgoci@redhat.com>
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Subject: [parisc-linux] Wheeee. 712/60 looking good
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Wheee. I finally got my lazy butt around to setting up my 
712 so that I can tftp boot it.

Everything looks ok. Cows are flying.  

Puffin: did you get your 712 yet ?

--Matt



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Subject: Re: [parisc-linux] Wheeee. 712/60 looking good
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On Sat, Jul 24, 1999 at 01:46:20AM -0400, mgalgoci@redhat.com wrote:
>=20
> Wheee. I finally got my lazy butt around to setting up my=20
> 712 so that I can tftp boot it.
>=20
> Everything looks ok. Cows are flying. =20
>=20
> Puffin: did you get your 712 yet ?
>=20
> --Matt

I just obtained a 712/60 and figured out bootp/tftp, and "Image-19990705" w=
orks
here as well.

Looking forward to actually using this thing! The hard drive came wiped, as=
 per
HP's orders, from GE via a local computer junk store; and the MkLinux port =
has,
well, issues. =3D)

My thanks to everyone involved in this porting project.
--=20
| Matthew Trent  |Unix Systems Administrator/Linux.com Project Manager |
| term@linux.com |  http://linux.com/  -  A Means to World Liberation  |
| Key fingerprint =3D E806 FC2F 27A8 A326 C4CA  36B9 4A40 FF6C 1D95 D32D |

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Subject: [parisc-linux] howto boot test kernel
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Xref: news.gmane.org gmane.linux.ports.parisc:9760

I have on old 712, I would like to make a try to linux kernel.
What did I need and how to setup things for booting the kernel, and
maybe giving some help on developpment.( I have other stations/server
under HPUX 10.20 where I can put a developement env?)

Thanks in advance.

-- 
Valery BRASSEUR                | Phone # +33 320 60 7982 
Atos Branche Multimedia        | Fax   # +33 320 60 7649

Hi! I'm a .signature virus! Copy me into your ~/.signature to help me
spread!


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From: Ingo Matthaes <imatthae@grcbd508.grc.hp.com>
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Subject: Re: [parisc-linux] howto boot test kernel
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Xref: news.gmane.org gmane.linux.ports.parisc:9761

On Tue, Jul 27, 1999 at 02:27:43PM +0200, valery brasseur wrote:
> I have on old 712, I would like to make a try to linux kernel.
> What did I need and how to setup things for booting the kernel, and
> maybe giving some help on developpment.( I have other stations/server
> under HPUX 10.20 where I can put a developement env?)

I've tried it successfully on my 715/33 using a bootp server.
Just use the cvs-linux tree, install gcc-2.8.1 or whatever with
binutils and GNU make.
For make menuconfig you have to install ncurses too.
Just type make dep boot and copy linux/arch/parisc/boot/Image to
the path specified in bootptab and thats it.

  Ingo

P.S. dd if=Image of=/dev/rdsk/blafasel works too, but the first
     solution is more useful :-) 

-- 
Ingo Matthaes
HP-UX Net und Linux Support
HP Support Center Ratingen


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Subject: Re: [parisc-linux] howto boot test kernel
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Here is how I did it:

	1) Uncomment tftp in /etc/inetd.conf

	2) Grab the kernel image and put it in /tftpboot

	3) Set up a bootp server that also specifes the name of the 
	kernel image to boot. To do this, I used dhcpd and used the
	dynamic-bootp modifier in the config file.

I also had to re-build dhcpd. It would not work on my system running the 
2.3.10 kernel.

But it worked ;)

--Matt

On Tue, 27 Jul 1999, valery brasseur wrote:

> I have on old 712, I would like to make a try to linux kernel.
> What did I need and how to setup things for booting the kernel, and
> maybe giving some help on developpment.( I have other stations/server
> under HPUX 10.20 where I can put a developement env?)
> 
> Thanks in advance.
> 
> -- 
> Valery BRASSEUR                | Phone # +33 320 60 7982 
> Atos Branche Multimedia        | Fax   # +33 320 60 7649
> 
> Hi! I'm a .signature virus! Copy me into your ~/.signature to help me
> spread!
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


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From: Lyonel VINCENT <lyonel_vincent@hp.com>
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Subject: [parisc-linux] building IPL...
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Hi all,

I'm new to this list and I would want to tell you that if you need a
dumb user to test your kernels, I have some systems roaming around which
could do (C-class, D-class, G-class, K-class, 705, 712, 735). These are
test systems and I can reboot them without any problem.

Lyonel.

PS: you've already done a great job ! keep it moving
PPS: I've just built the latest snapshot and my 712 doesn't seem to like
it... (btw, the 05/07 image works well and correctly detects the
CPU/frequency/memory...)

--
Lyonel VINCENT - 779-6736
Smart Card Center, Grenoble, FR



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Xref: news.gmane.org gmane.linux.ports.parisc:9764

> I'm new to this list and I would want to tell you that if you need a
> dumb user to test your kernels, I have some systems roaming around which
> could do (C-class, D-class, G-class, K-class, 705, 712, 735). These are
> test systems and I can reboot them without any problem.

Great.  Do you have something set up to boot all of the PA1.1 ones and see
which one come through and where those that don't hang ?

> PPS: I've just built the latest snapshot and my 712 doesn't seem to like
> it... (btw, the 05/07 image works well and correctly detects the
> CPU/frequency/memory...)

I think you ran into our slightly broken Dino detection code. Try to disable
all dino support for the build.


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I know there are some people sitting around who'd like to help with this
project, but feel they are insufficiently able.  I have a task here which
requires almost no prior knowledge, just some time.  As an added bonus,
you'll gain some experience and knowledge.  What I need is a table which
has the entry points for HPUX syscalls.

Take a look at arch/parisc/kernel/entry.S which has the linux syscalls in
it, copy it to hpux_entry.S and modify it to have HPUX syscalls instead
(the numbers are in include/asm-parisc/unistd.h).  Use the relevant linux
syscalls where they are _identical_.  That means parameters and behaviour.
Where they are not, some glue code must be written to mangle the hpux
parameters into those that Linux is expecting.  If you're interested,
drop me a mail to let me know you're doing it, and I'll give you a hand
if you get stuck.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: [parisc-linux] HPUX syscall ABI?
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I've just redefined the Linux syscall ABI again so we can
handle sys_mmap (which takes 6 arguments) cleanly.  I'm now
wondering what the HPUX syscall standard is.  I've searched
http://docs.hp.com:80/dynaweb/hpux11/dtdcen1a/b821/@Generic__BookView
(as mentioned earlier on this mailing list) without success.

For those interested; Linux syscalls now take the syscall number in r20,
take arguments in r26-r21, zero r1, r19-r26, r29 and r31 on exit, preserve
r3-r18, r27(dp) and r30(sp), clobber r2 and return the result in r28.
If it's in the range [-1024,0) then that's an error code, otherwise it's
the result.

ObRant: Why on earth define a register to be caller-saves but not allow it
to contain an argument?  Why force it onto the stack?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: "M. Adam Kendall" <mak@kha0s.org>
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Subject: [parisc-linux] Kernel images
Date: Sun, 01 Aug 1999 22:04:23 -0400 (EDT)
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Hello all,

As I understand that the cross compiling of the
kernel doesn't quite work right, is there someone
that is compiling the latest CVS kernel images
and putting them somewhere?

The last image I could find is the one from 
19990705 (which does boot on my 715/75 just 
great).  I would love to be able to keep up with
the CVS images.

I would compile these myself, but I don't happen
to have HPUX on this machine (the drive came
wiped)

Thanks,
Adam
l


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From: Philipp Rumpf <prumpf@suse.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HPUX syscall ABI?
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> For those interested; Linux syscalls now take the syscall number in r20,
> take arguments in r26-r21, zero r1, r19-r26, r29 and r31 on exit, preserve
> r3-r18, r27(dp) and r30(sp), clobber r2 and return the result in r28.

sounds rather strange but as long as gcc takes it as inline assembly ...

> ObRant: Why on earth define a register to be caller-saves but not allow it
> to contain an argument?  Why force it onto the stack?

An ABI that would specify too many argument registers would force the caller
to load them before the call and the callee to save them again because both
would need the additional argument registers.


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HPUX syscall ABI?
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  In message <19990802053239.N13236@suse.de>you write:
  > > For those interested; Linux syscalls now take the syscall number in r20,
  > > take arguments in r26-r21, zero r1, r19-r26, r29 and r31 on exit, preserv
  > e
  > > r3-r18, r27(dp) and r30(sp), clobber r2 and return the result in r28.
  > 
  > sounds rather strange but as long as gcc takes it as inline assembly ...
  > 
  > > ObRant: Why on earth define a register to be caller-saves but not allow i
  > t
  > > to contain an argument?  Why force it onto the stack?
  > 
  > An ABI that would specify too many argument registers would force the 
caller
  > to load them before the call and the callee to save them again because both
  > would need the additional argument registers.
At function entry the compiler copies all parameters passed in registers into
pseudo-registers.

Those pseudo registers are then subject to normal register allocation.  ie,
the compiler can allocate it into a call saved register, into a stack slot
(and bring it into a register where needed) or into a call clobbered register
and save/restore it around calls based on which of the options minimizes
cost.

In fact, if you examine the PA64 ABI, it uses %r19-%r26 for parameters,
%r28 for the structure value return address and %r29 for the outgoing arg
pointer, %r2 for the return address, %r1 is a scratch for long calls.  That
leaves just %r31 as the only call-clobbered register which is not uses for
passing parameters or not clobbered on the call path itself.

There's no benefit to not using those call clobbered registers for parameter
passing other than to save a little stack space (you have a register flush to
fixed areas in the frame inside varargs/stdarg functions).

jeff


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Subject: Re: [parisc-linux] HPUX syscall ABI?
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>> An ABI that would specify too many argument registers would force the 
>> caller
>> to load them before the call and the callee to save them again because both
>> would need the additional argument registers.
> At function entry the compiler copies all parameters passed in registers into
> pseudo-registers.
> 
> Those pseudo registers are then subject to normal register allocation.  ie,
> the compiler can allocate it into a call saved register, into a stack slot
> (and bring it into a register where needed) or into a call clobbered register
> and save/restore it around calls based on which of the options minimizes
> cost.

Is this gcc-specific ?

> There's no benefit to not using those call clobbered registers for parameter
> passing other than to save a little stack space (you have a register flush to
> fixed areas in the frame inside varargs/stdarg functions).

I can imagine cases for which the PA1.1 ABI is better but of course I am not
sure how frequent they are.  For syscalls we definitely want to avoid having
to look at the user stack as soon as we have PL 0.

	Philipp Rumpf


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Subject: Re: [parisc-linux] HPUX syscall ABI?
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  In message <19990802062141.A23880@suse.de>you write:
  > Is this gcc-specific ?
It's a well known concept.  I would be amazed at any compiler that doesn't
do something similar.


  > I can imagine cases for which the PA1.1 ABI is better but of course I am
  > not sure how frequent they are.
Not if you write your compiler in a reasonable way (assuming we're just
discussing how many registers are used).  There are certainly ways the PA32
ABI is more efficient than the PA64 ABI, particularly when calling functions
without prototypes.

FWIW there is another PA32 ABI which appeared on hp's osf system which used
%r21-%r26 for passing parameters.  If you look deep into some of the mach+osf
code you'll find thunks to deal with that gem since we (Utah) used the standard
hpux ABI on our mach+osf port.

jeff


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From: LaMont Jones <lamont@security.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HPUX syscall ABI?
Date: Mon, 02 Aug 1999 00:08:24 -0600
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> I've just redefined the Linux syscall ABI again so we can
> handle sys_mmap (which takes 6 arguments) cleanly.  I'm now
> wondering what the HPUX syscall standard is.  I've searched
> http://docs.hp.com:80/dynaweb/hpux11/dtdcen1a/b821/@Generic__BookView
> (as mentioned earlier on this mailing list) without success.

IIRC, r22 has the syscall number, r31 (and sr0) gets trashed branching
to 0.0xc0000004 (they probably get used as part of the return - I'm too
lazy to go look right now, but I'm pretty sure that r31 gets copied into
r2).  Other than that, it's a standard PA1.1 function call: arg0-3 in
r26-21, and arg4-n at sp-52, -56, ...

Was that what you were looking for?
lamont


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HPUX syscall ABI?
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Xref: news.gmane.org gmane.linux.ports.parisc:9773

On Mon, Aug 02, 1999 at 12:08:24AM -0600, LaMont Jones wrote:
> > I've just redefined the Linux syscall ABI again so we can
> > handle sys_mmap (which takes 6 arguments) cleanly.  I'm now
> > wondering what the HPUX syscall standard is.  I've searched
> > http://docs.hp.com:80/dynaweb/hpux11/dtdcen1a/b821/@Generic__BookView
> > (as mentioned earlier on this mailing list) without success.
> 
> IIRC, r22 has the syscall number, r31 (and sr0) gets trashed branching
> to 0.0xc0000004 (they probably get used as part of the return - I'm too
> lazy to go look right now, but I'm pretty sure that r31 gets copied into
> r2).  Other than that, it's a standard PA1.1 function call: arg0-3 in
> r26-21, and arg4-n at sp-52, -56, ...
> 
> Was that what you were looking for?

Yep, that's exactly what I need.  Urgh, so I have to grab the arguments
off the user-mode stack before switching to the kernel-mode stack..

What's the greatest number of parameters to an HPUX syscall?
Linux's mmap() has six parameters (and you should see the kludges some
architectures go through to support that.  We're cleaner).

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Matthew Trent <term@linux.com>
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Subject: Re: [parisc-linux] Kernel images
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On Sun, Aug 01, 1999 at 10:04:23PM -0400, M. Adam Kendall wrote:
> Hello all,
>=20
> As I understand that the cross compiling of the
> kernel doesn't quite work right, is there someone
> that is compiling the latest CVS kernel images
> and putting them somewhere?
>=20
> The last image I could find is the one from=20
> 19990705 (which does boot on my 715/75 just=20
> great).  I would love to be able to keep up with
> the CVS images.
>=20
> I would compile these myself, but I don't happen
> to have HPUX on this machine (the drive came
> wiped)
>=20
> Thanks,
> Adam

I'm in the same boat. I'd love to be able to cross compile the kernel, but =
I've
no HP-UX.
--=20
| Matthew Trent  |Unix Systems Administrator/Linux.com Project Manager |
| term@linux.com |  http://linux.com/  -  A Means to World Liberation  |
| Key fingerprint =3D E806 FC2F 27A8 A326 C4CA  36B9 4A40 FF6C 1D95 D32D |

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From: Ingo Matthaes <imatthae@grcbd508.grc.hp.com>
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Subject: Re: [parisc-linux] Kernel images
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Xref: news.gmane.org gmane.linux.ports.parisc:9775

On Sun, Aug 01, 1999 at 11:42:46PM -0700, Matthew Trent wrote:
> 
> I'm in the same boat. I'd love to be able to cross compile the kernel, but I've

I will put the latest Images to grcbd508.grc.hp.com.
Anonymous ftp is permitted. Location is /pub/parisc-linux.
This server is not reachable from outside HP.

   Ingo


-- 
Ingo Matthaes
HP-UX Net und Linux Support
HP Support Center Ratingen


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Xref: news.gmane.org gmane.linux.ports.parisc:9776

On Sun, Aug 01, 1999 at 11:42:46PM -0700, Matthew Trent wrote:
> I'm in the same boat. I'd love to be able to cross compile the kernel, but I've
> no HP-UX.

I think this is a service The Puffin Group will be providing as soon as
their DSL turns up (was supposed to go in last Monday, so RSN.)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: LaMont Jones <lamont@security.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HPUX syscall ABI?
Date: Mon, 02 Aug 1999 02:36:58 -0600
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Cc: LaMont Jones <lamont@security.hp.com>, parisc-linux@thepuffingroup.com
To: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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> Yep, that's exactly what I need.  Urgh, so I have to grab the arguments
> off the user-mode stack before switching to the kernel-mode stack..
> 
> What's the greatest number of parameters to an HPUX syscall?
> Linux's mmap() has six parameters (and you should see the kludges some
> architectures go through to support that.  We're cleaner).

The routine _syscall(), which calls an aribitrary system call for you,
takes 9 arguments:  the system call number followed by 8 args.  While
that's not a complete guarantee, you'ld be in good company if you supported
up to 8 args...

lamont


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From: Jerry Huck <huck@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HPUX syscall ABI?
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X-Mailer: ELM [$Revision: 1.17.214.3 $]
Xref: news.gmane.org gmane.linux.ports.parisc:9778

> Date: Mon, 2 Aug 1999 08:26:12 +0200
> From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
> To: LaMont Jones <lamont@security.hp.com>
> Cc: Matthew Wilcox <Matthew.Wilcox@genedata.com>,
>         parisc-linux@thepuffingroup.com
> Subject: Re: [parisc-linux] HPUX syscall ABI?

... To LaMont's reply Matthew writes:

> Yep, that's exactly what I need.  Urgh, so I have to grab the arguments
> off the user-mode stack before switching to the kernel-mode stack..

Just as an aside, you might want to use the gateway page to do some
fix-ups.  On the gateway page, you can delay the promotion, do some
argument shuffling and other glue code in the user's context, and then
finally gateway to priv 0 (and presumably to some kernel code).  You
could load up all the scratch registers with arguments and then have
the kernel-stack switch code push the arguments after the priv change.

I've always wanted HP-UX to use this type of approach to read as many
arguments (and memory data structures) as can fit in the scratch
region on both call and return.  You can avoid all the high overhead
kernel-user copy code.  Simple things, like "gettimeofday", could pop into
the kernel, get the return values, return to priv 3 near those gateway
pages, write the return values to memory, and return to the caller
without any kernel-user copies.

Jerry Huck
(PA-RISC architecture group)


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Hi,

it is not possible to compile the latest CVS-Kernels. I tried 
various configurations, but I still get unsatisfied symbol __delay.
Is anybody out there, who compiles the actual sources succesfully ?
make menuconfig seems to be broken too (since 4 weeks)

  Ingo
-- 
Ingo Matthaes
HP-UX Net und Linux Support
HP Support Center Ratingen


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From: "Steven A. DuChene" <sduchene@mindspring.com>
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Subject: Re: [parisc-linux] unsatisfied symbols
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In-Reply-To: <19990803114003.A5018@grcbd508.grc.hp.com>; from Ingo Matthaes on Tue, Aug 03, 1999 at 11:40:03AM +0200
Xref: news.gmane.org gmane.linux.ports.parisc:9780

On Tue, Aug 03, 1999 at 11:40:03AM +0200, Ingo Matthaes wrote:
> it is not possible to compile the latest CVS-Kernels. I tried 
> various configurations, but I still get unsatisfied symbol __delay.
> Is anybody out there, who compiles the actual sources succesfully ?
> make menuconfig seems to be broken too (since 4 weeks)
> 

Ingo:
When you say make menuconfig seems to be broken, what exactly doesn't
work? As I understand the current method for compiling kernels takes
place using HP-UX with gcc. Does it also include ncurses or is the
group attempting to use the native HP-UX curses? If the later then
understand that HP-UX has at last count at least three or four
different curses libraries. Some of them are badly broken while others
are only semi broken. My advice is to get ncurses and use it instead
of the various native curses implementations.

If the make menuconfig problem isn't a problem with the curses
implementation on HP-UX I could be barking up the wrong tree here.
-- 
Steven A. DuChene   Linux Fan!  http://www.mindspring.com/~sduchene

Outside of a dog, a book is a man's best friend. Inside a dog it's
too dark to read.
                -- Groucho Marx


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From: Philipp Rumpf <prumpf@suse.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:9781

> When you say make menuconfig seems to be broken, what exactly doesn't
> work? As I understand the current method for compiling kernels takes

our config.in was broken and Ingo sent a patch that corrected the problem.


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: [parisc-linux] Kernel images
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Matthew Wilcox wrote:
> 
> On Sun, Aug 01, 1999 at 11:42:46PM -0700, Matthew Trent wrote:
> > I'm in the same boat. I'd love to be able to cross compile the kernel, but I've
> > no HP-UX.
> 
> I think this is a service The Puffin Group will be providing as soon as
> their DSL turns up (was supposed to go in last Monday, so RSN.)
> 

Actually, I'm pretty up to date with building kernels.  I'll upload them
regularly now to ftp://puffin.external.hp.com/pub/binaries/kernels .

- Alex
-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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Subject: Re: [parisc-linux] unsatisfied symbols
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Am Tue, 03 Aug 1999 schrieb Ingo Matthaes:
> Hi,
> 
> it is not possible to compile the latest CVS-Kernels. I tried 
> various configurations, but I still get unsatisfied symbol __delay.
> Is anybody out there, who compiles the actual sources succesfully ?
> make menuconfig seems to be broken too (since 4 weeks)
> 
>   Ingo

Hi Ingo.

The unsatisfied symbol __delay was caused by the inclusion of pdc_cons.c by the
bootloader. I fixed it some minutes ago in the cvs.
The actual kernel from cvs compiles, links and boots (!!) now cleanly (I just
tried it), if you add the line  
extern pgd_t swapper_pg_dir[1024];
to the file pgtable.h. I didnt wanted to fix that, since I think, that Philipp
is actually working on that code....

NB: If you want faster screen-output, then remove the delay() in pdc_cons.c.

Ciao,
Helge.


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From: Ingo Matthaes <imatthae@grcbd508.grc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] unsatisfied symbols
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Xref: news.gmane.org gmane.linux.ports.parisc:9784

> Hi Ingo.
> 
> The unsatisfied symbol __delay was caused by the inclusion of pdc_cons.c by the
> bootloader. I fixed it some minutes ago in the cvs.
> The actual kernel from cvs compiles, links and boots (!!) now cleanly (I just
> tried it), if you add the line  
> extern pgd_t swapper_pg_dir[1024];
> to the file pgtable.h. I didnt wanted to fix that, since I think, that Philipp

O.k. it works fine on my 715/33. I will try it on some 712 and, if available,
on a a-class



> is actually working on that code....
> 
> NB: If you want faster screen-output, then remove the delay() in pdc_cons.c.

Why should I remove that classic feeling :-)

  Ingo


-- 
Ingo Matthaes
HP-UX Net und Linux Support
HP Support Center Ratingen


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From: Hannu Martikka <martikka@stybba.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Pa-risc Linux timetables?
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Xref: news.gmane.org gmane.linux.ports.parisc:9785

Hi!

I just noticed that Linus is doing feature freeze for 2.4 in few weeks.
That raised couple of questions.

Do we have any estimate on parisc/linux timetables? When is the pa-risc
Linux going to be "released"? Do we target it to 2.5 or 2.6? 

We are now based on 2.2.1. How big effort would be required to merge
pa-risc linux (2.2.1) to 2.3/2.4?

- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Subject: Re: [parisc-linux] Pa-risc Linux timetables?
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In-Reply-To: <Pine.HPX.4.05.9908051545080.18930-100000@gamgee.ntc.nokia.com>; from Hannu Martikka on Thu, Aug 05, 1999 at 03:54:09PM +0300
Xref: news.gmane.org gmane.linux.ports.parisc:9786

On Thu, Aug 05, 1999 at 03:54:09PM +0300, Hannu Martikka wrote:
> Do we have any estimate on parisc/linux timetables? When is the pa-risc
> Linux going to be "released"? Do we target it to 2.5 or 2.6? 
> 
> We are now based on 2.2.1. How big effort would be required to merge
> pa-risc linux (2.2.1) to 2.3/2.4?

I believe we're aiming at having a 2.2 version ready for the end of the
year -- approximately the same time as Linus expects to have a 2.4 release
out.  Updating to 2.4 shouldn't be a big problem, and we don't have to be
ready for the release of 2.4.0 -- Linus merged alpha, sparc, ppc and mips
trees at several stages after 2.2.0 was released.  (Indeed, there is a
big mips merge in the 2.2.11 prepatches.)

Don't worry about 2.4 yet :-)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: Re: [parisc-linux] Pa-risc Linux timetables?
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Hannu Martikka wrote:
> I just noticed that Linus is doing feature freeze for 2.4 in few weeks.
> That raised couple of questions.

I've talked to Linus about merging the changes into his mainstream
kernel tree, and he's agreed, but only once our kernel actually does
something.  I agree with this.

> Do we have any estimate on parisc/linux timetables? When is the pa-risc
> Linux going to be "released"? Do we target it to 2.5 or 2.6?

It's very difficult to suggest a timeline to a project that's done only
on volunteer time, so I don't think anyone's ready to commit to a
schedule.  

My feeling is we'll address the kernel merge once we have a kernel to
merge.  A LOT of the architecture ports had their own seperate tree for
many years.  MIPS, for instance, has only just merged.

- alex
-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Philipp Rumpf <prumpf@suse.de>
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Subject: Re: [parisc-linux] Pa-risc Linux timetables?
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> I've talked to Linus about merging the changes into his mainstream
> kernel tree, and he's agreed, but only once our kernel actually does
> something.  I agree with this.

we do "something" right now.  I think we should wait with the merge until
we are really willing to start mainstream testing of the kernel, with a
more-or-less running userspace and all.

> It's very difficult to suggest a timeline to a project that's done only
> on volunteer time, so I don't think anyone's ready to commit to a

That is not exactly true.  My time is paid for by SuSE.

	Philipp Rumpf


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Subject: [parisc-linux] reserving constants
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I have some more constants which need reserving.  These are in the O_*
numberspace:

#define FASYNC          00020000 /* fcntl, for BSD compatibility */
#define O_DIRECT        00040000 /* direct disk access hint - currently ignored */
#define O_DIRECTORY     00010000 /* must be a directory */
#define O_NOFOLLOW      00000200 /* don't follow links */

Linux doesn't distinguish between O_NONBLOCK and O_NDELAY so I also
defined:

#define O_NONBLOCK      00200004 /* HPUX has separate NDELAY & NONBLOCK */
#define O_NDELAY        O_NONBLOCK

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: [parisc-linux] utssys?
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Can anyone tell me what the utssys() system call does?  There's no manual
page for it.  From tusc, I can see:

utssys("HP-UX", 0, 0) ............................................ = 0

so all I need do to get it to work on Linux is return 0, but I'd like
to understand a little more.

I also can't find a manual page for sigsetreturn() which I probably need
to understand more deeply than utssys :-)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: Re: [parisc-linux] utssys?
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> 
> 
> Can anyone tell me what the utssys() system call does?  There's no manual
> page for it.  From tusc, I can see:
> 
> utssys("HP-UX", 0, 0) ............................................ = 0

Just guessing but it might be for uname and setuname.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: [parisc-linux] utssys?
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Re:

> Can anyone tell me what the utssys() system call does?  There's no manual
> page for it.  From tusc, I can see:
> 
> utssys("HP-UX", 0, 0) ............................................ = 0

>From decompiling, it doesn't appear to do much.  The kernel utssys
routine (called to handle system call (SYS_utssys, #57)), is short,
with one external call ... to a short routine that has no procedure calls
at all.  That's where I stopped looking.

-- 
Stan Sieler                                          sieler@allegro.com
                                         http://www.allegro.com/sieler/


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Subject: Re: [parisc-linux] utssys?
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> 
> Re:
> 
> > Can anyone tell me what the utssys() system call does?  There's no manual
> > page for it.  From tusc, I can see:
> > 
> > utssys("HP-UX", 0, 0) ............................................ = 0
> 
> >From decompiling, it doesn't appear to do much.  The kernel utssys
> routine (called to handle system call (SYS_utssys, #57)), is short,
> with one external call ... to a short routine that has no procedure calls
> at all.  That's where I stopped looking.

>From the 9.1 kernel lib:

Symbols from libhp-ux.a[utssys.o]:

Name                    Value   Scope  Type    Subspace

$str_lit_sym$       |1073741824|static|data   |$DATA$
$THIS_DATA$         |1073741824|static|data   |$DATA$
$THIS_SHORTDATA$    |1073741848|static|data   |$SHORTDATA$
$THIS_BSS$          |1073741848|static|data   |$BSS$
$THIS_SHORTBSS$     |1073741848|static|data   |$SHORTBSS$
$THIS_STATICDATA$   |1073741848|static|data   |$STATICDATA$
$THIS_SHORTSTATICDATA$|1073741848|static|data   |$SHORTSTATICDATA$
$THIS_LIT$          |      1192|static|code   |$LIT$
$THIS_LITSTATIC$    |      1192|static|code   |$LITSTATIC$
$global$            |          |undef |data   |
int_owner           |         4|undef |common |$SHORTBSS$
uptr                |          |undef |data   |
utsname             |          |undef |data   |
brmtdev             |          |undef |data   |
proto_stats         |       124|undef |common |$BSS$
hostname            |          |undef |data   |
utssys              |         0|extern|entry  |$CODE$
getcputype          |          |undef |code   |
copyout             |          |undef |code   |
dux_ustat           |          |undef |code   |
getmp               |          |undef |code   |
bcopy               |          |undef |code   |
suser               |          |undef |code   |
fubyte              |          |undef |code   |

The call is used by a number of routines in libc.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: "Brian S. Martin" <martin@sinfonia.org>
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Subject: [parisc-linux] Installing HP-UX 10.2
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I have an HP 712/60, and want to get HP-UX 10.2 installed (so that I can get
involved with the parisc-linux stuff).  However, when I try to install it, I
get the following error:

	WARNING:  <filename> utime failed: invalid argument (22)

I get about 20 of these, then the install fails.

The date/time on the workstation are wrong, but I can't figure out how to
fix them.

Any help would be appreciated!

Brian S. Martin
Director of Information Systems
Phi Mu Alpha Sinfonia
http://www.sinfonia.org/


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From: Gyula Matics <mgyula@pi.satimex.tvnet.hu>
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Subject: Re: [parisc-linux] utssys?
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> Can anyone tell me what the utssys() system call does? There's no manual 
> page for it. From tusc, I can see: 
> 
> utssys("HP-UX", 0, 0) ............................................ = 0 
> 
> so all I need do to get it to work on Linux is return 0, but I'd like 
> to understand a little more. 

On Solaris it's 3 syscalls, and you have some documentation in sys/syscall.h
and sys/utssys.h. One of them is used by fuser.
Maybe you can find some info in the hpux headers?
(Can't check, no access for hpux right now)

int utssys(char *path, int flags, int type, char *obuf)

#define SYS_utssys      57
        /*
         *subcodes (third argument):
         *      uname(obuf)  (obsolete)   :: syscall(57, obuf, ign, 0)
         *                                      subcode 1 unused
         *      ustat(dev, obuf)          :: syscall(57, obuf, dev, 2)
         *      fusers(path, flags, obuf) :: syscall(57, path, flags, 3, obuf)
         *      see <sys/utssys.h>
         */

Gyula


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From: Ingo Matthaes <imatthae@grcbd508.grc.hp.com>
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Hi 

for all interested testers: I'll put daily snapshot kernelimages
on ftp.dlug.de/pub/parisc-linux.
This is the Duesseldorfer Linux User Group ftp Server. 
Anonymous ftp is permitted.

  Ingo

-- 
Ingo Matthaes
HP-UX Net und Linux Support
HP Support Center Ratingen


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On Sat, 7 Aug 1999, Matthew Wilcox wrote:

> Can anyone tell me what the utssys() system call does?  There's no manual
> page for it.

It takes 3 arguments; a pointer, and two ints.

The second int is the request type.  If an unknown request type is
passed in, it returns EFAULT.
If the request does something like sets the hostname, the first int
passed in is the number of bytes in the hostname.
If the request does something like gets the hostname, the first int
passed in is the size of the character buffer for it to put the answer in.
Otherwise it's ignored.

type=0 gets the utsname (see sys/utsname.h).  first int is ignored.
type=1 is obsolete; it returns EFAULT
I don't know what type=2 does.
type=3 sets utsname.nodename, if you're root
type=4 sets the hostname, if you're root
type=5 gets the hostname
type=6 sets utsname.sysname, if you're root
type=7 is undocumented; it's only used during OS updates.  Just return EFAULT.


Here's an example of using utssys() to get the system's hostname:

#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <syscall.h>
int main(argc,argv)
int argc; char *argv[];
{
    char buf[2048];
    memset(buf, 0, sizeof(buf));
    /*  utssys(buf, sizeof(buf), 5);  */
    if( syscall( SYS_UTSSYS, buf, sizeof(buf)-1, 5 ) == -1 ) {
        perror("utssys");
        exit(1);
    }
    printf("Hostname = \"%s\"\n", buf);
    exit(0);
}

- Kevin Vajk
  <kvajk@cup.hp.com>




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On Tue, 10 Aug 1999, Kevin Vajk wrote:

> I don't know what type=2 does.

Whoops!  Yes, I do...

It implements ustat().  First argument is the dev, like this:
ustat(dev, buf) ==> utssys(buf, dev, 2)

- Kevin Vajk
  <kvajk@cup.hp.com>



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From: Philipp Rumpf <prumpf@suse.de>
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Subject: [parisc-linux] GSC cards
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Xref: news.gmane.org gmane.linux.ports.parisc:9799

Hi,
even if there was not much list traffic in the last weeks, development is
going on and even making real progress.  We expect to run our first user
space program RSN.

One of the areas we now have code for is GSC bus walking.  This code is
basically engineered from some hints in the Dino documentation and not
tested with any other device (Lasi, Artist, and the CPU, though on the
GSC bus, do not use the HPA pages and are not auto-detectable in the
same way as Dino.

Therefore, if any of you have access to other machines than 712's or 
A180[c]s (this includes 715s), or machines with GSC cards other than
Dino-on-a-card based ones in them, please try to boot them with the Image
at ftp://sunsite.auc.dk/pub/os/linux/parisc/testing/image-2.2.1-gsctest
and send the lines between "GSC init" and "mem_init bla bla bla" here
(it might be a good idea to keep the subject line "Re: GSC cards" instead
to avoid annoying anybody).

TIA,

	Philipp Rumpf


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] GSC cards
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Xref: news.gmane.org gmane.linux.ports.parisc:9800

Philipp Rumpf wrote:
> Hi,
> even if there was not much list traffic in the last weeks, development is
> going on and even making real progress.  We expect to run our first user
> space program RSN.
> 
> One of the areas we now have code for is GSC bus walking.  This code is
> basically engineered from some hints in the Dino documentation

Rather than depend on just one implementation, look at the PA I/O
Architecture documents. Dino is an implementation of a PA I/O device.
BTW, GSC and HP-PB bus walk are basically the same - both follow PA
I/O architecture.

grant

> and not
> tested with any other device (Lasi, Artist, and the CPU, though on the
> GSC bus, do not use the HPA pages and are not auto-detectable in the
> same way as Dino.
> 
> Therefore, if any of you have access to other machines than 712's or 
> A180[c]s (this includes 715s), or machines with GSC cards other than
> Dino-on-a-card based ones in them, please try to boot them with the Image
> at ftp://sunsite.auc.dk/pub/os/linux/parisc/testing/image-2.2.1-gsctest
> and send the lines between "GSC init" and "mem_init bla bla bla" here
> (it might be a good idea to keep the subject line "Re: GSC cards" instead
> to avoid annoying anybody).
> 
> TIA,
> 
> 	Philipp Rumpf
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Philipp Rumpf <prumpf@suse.de>
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Subject: Re: [parisc-linux] GSC cards
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On Thu, Aug 12, 1999 at 10:12:26AM -0700, Grant Grundler wrote:
> > One of the areas we now have code for is GSC bus walking.  This code is
> > basically engineered from some hints in the Dino documentation
> 
> Rather than depend on just one implementation, look at the PA I/O
> Architecture documents. Dino is an implementation of a PA I/O device.

AFAIK, these documents are not publically available.  If they indeed are,
could someone send the URLs ?

	Philipp Rumpf


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From: "Jim Hull" <jim_hull@hp.com>
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Subject: RE: [parisc-linux] GSC cards
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> On Thu, Aug 12, 1999 at 10:12:26AM -0700, Grant Grundler wrote:
> > > One of the areas we now have code for is GSC bus walking.  This code is
> > > basically engineered from some hints in the Dino documentation
> >
> > Rather than depend on just one implementation, look at the PA I/O
> > Architecture documents. Dino is an implementation of a PA I/O device.
>
> AFAIK, these documents are not publically available.  If they indeed are,
> could someone send the URLs ?

What you need are the early chapters of the I/O Architecture Reference.  You're
right that these have not (yet) been released by HP, but I've just started the
process to get these chapters released to you.

 -- Jim


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] GSC cards
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"Jim Hull" wrote:
...
> > > Rather than depend on just one implementation, look at the PA I/O
> > > Architecture documents. Dino is an implementation of a PA I/O device.
> >
> > AFAIK, these documents are not publically available.  If they indeed are,
> > could someone send the URLs ?
> 
> What you need are the early chapters of the I/O Architecture Reference.
> You're right that these have not (yet) been released by HP, but I've
> just started the process to get these chapters released to you.

Apologies - I thought the entire PA I/O Arch reference was available.
Given most of the platform stuff (Lasi/Dino/PA 1.1) has been released,
I didn't realize PA I/O Architecture Reference would contain anything
HP wanted to keep internal.

grant


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From: Larry Dwyer <larry_dwyer@hp.com>
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Subject: Re: reserving constants
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Working...-Larry

At 12:48 AM 8/6/99 +0200, Matthew Wilcox wrote:
>
>I have some more constants which need reserving.  These are in the O_*
>numberspace:
>
>#define FASYNC          00020000 /* fcntl, for BSD compatibility */
>#define O_DIRECT        00040000 /* direct disk access hint - currently
ignored */
>#define O_DIRECTORY     00010000 /* must be a directory */
>#define O_NOFOLLOW      00000200 /* don't follow links */
>
>Linux doesn't distinguish between O_NONBLOCK and O_NDELAY so I also
>defined:
>
>#define O_NONBLOCK      00200004 /* HPUX has separate NDELAY & NONBLOCK */
>#define O_NDELAY        O_NONBLOCK
>
>-- 
>Matthew Wilcox <willy@bofh.ai>
>"Windows and MacOS are products, contrived by engineers in the service of
>specific companies. Unix, by contrast, is not so much a product as it is a
>painstakingly compiled oral history of the hacker subculture." - N Stephenson
>
>


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At 12:48 AM 8/6/99 +0200, Matthew Wilcox wrote:
...
>Linux doesn't distinguish between O_NONBLOCK and O_NDELAY so I also
>defined:
>
>#define O_NONBLOCK      00200004 /* HPUX has separate NDELAY & NONBLOCK */
>#define O_NDELAY        O_NONBLOCK

I would not equate the two.
I'm not sure the difference is clear to folks outside of HP.
Or even many folks inside HP for that matter. :^/
I just read the open(2) and read(2) man page. I don't think
it's use is fully documented. Perhaps in the DDG or DDR?

I might be confusing flags here though...could someone confirm
the O_NDELAY is the same flag which gets passed to the disk
drivers as B_NDELAY (defined in buf.h)?

B_NDELAY has special meaning to the mass storage subsystem and
is (was) needed by some of the "high availability" applications.

The semantics (I thought) of B_NDELAY is it allows the process to sleep
on a open/read/write, but no part of the SCSI driver stack is allowed
to retry "errors". This means the application must handle all error
conditions - including transient errors and there are plenty of those.
This was implemented to avoid long delays associated with retrying
"transient" errors and get control back to the application.

hope this helps,
grant


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From: Christopher Beard <cjbeard@puffingroup.com>
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I've updated the web pages, and will continue to do so over the next
couple of weeks to bring them in sync with reality. (It's amazing how
quickly documentation can fall behind.) 

You will also notice that I've added the ability to walk through the
kernel source using a cross-reference utility (lxr) which I hope will be
moderately useful.

Chris


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From: Cary Coutant <cary@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] sigsetreturn (was utssys?)
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>I also can't find a manual page for sigsetreturn() which I probably need
>to understand more deeply than utssys :-)

When the kernel passes control to a signal handler, it needs to set the 
stack up with a signal context structure and a return address that 
results in the restoration of that context when (and if) the signal 
handler returns. Since the normal BV instruction used for returns can't 
branch across space boundaries, the signal handler can't return directly 
to kernel space, so the kernel needs to supply a return address in user 
space that will implement the restoration of the interrupted context. 
This return address is the sigreturn() system call, found in libc. In 
order for the kernel to know the address of sigreturn, it needs to be 
told in advance; that's what sigsetreturn() does.

The call to sigsetreturn() has been moved around several times in the 
history of HP-UX. At one point, it was in the _start() routine in the C 
library, but that didn't get called for Fortran programs, so it was added 
to several of the signal routines, to make sure it got called before any 
signal handlers could be installed. Ultimately, I think it ended up in 
crt0, where it should have been all along.

Sigsetreturn() also supplies a "cookie" that the kernel can use to 
determine what the vintage is of the running program. For programs build 
for PA 1.0, for example, the cookie tells the kernel to deliver a shorter 
signal context record, since some of those early applications were 
actually dependent on the size and layout of the context record. Someone 
in OS land will probably have to supply you with the detailed meanings of 
the cookies used in this call, if it matters.

Cary Coutant
Runtime Architect


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I'm just reporting in on whats happening on my J210 with the 990811 kernel
from ftp://ftp.dlug.de:/pub/parisc-linux/

Here's what I get from the console:
PARISC/Linux Bootstrap Version 0.5 (interactive)
By Helge Deller & Jason Eckhardt
Built Wed Aug 11 09:52:34 METDST 1999 by root@grcdg306


Please enter the command-line:
/stand/vmlinux HOME=/ TERM=LINUX
Reading parameters...done.

Loading PA-RISC/Linux Kernel...
SOM-Kernel:
aux_header_location: 00000080
som       : 00200080
exec_dfile: 00098000
exec_dsize: 0001D000
exec_dmem : C0078000
exec_tfile: 00030000
exec_tsize: 00067008
exec_tmem : C0010000
Code at 0x00010000, size=0x00067008
Data at 0x00078000, size=0x0001D000
BSS  at 0x00095000.

Transferring control to kernel. (At entry point 0x00010000)
TEST


The Kernel has started...
You are running a 120MHz PA-RISC-Machine with 512MB of RAM.
Free memory was at 0xC00B5F38 (=stackbase, stacksize=0x00040000).
Free memory now at 0xC00F5F38 and ends at 0x20000000.
Linux version 2.2.1 (root@grcdg306) (gcc version 2.8.1) #1
 Wed Aug 11 09:33:32 METDST 1999
command_line: <none>

Dino device driver, by Alan Cox and Alex deVries

*** then it stops here
If I notice any differences in future kernel builds I'll post the results as
well. Also if anybody has any more success with the J210s I'd like to know
what they did. I'm currently unable to build a kernel on my own machine
because of the lack of HP-UX.

I have older kernels which printed out more information if people need those
as well.


-- 
Steve Moret
smoret@uci.edu


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From: Ulrich Drepper <drepper@cygnus.com>
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Cary Coutant <cary@cup.hp.com> writes:

> Since the normal BV instruction used for returns can't branch across
> space boundaries, the signal handler can't return directly to kernel
> space, so the kernel needs to supply a return address in user space
> that will implement the restoration of the interrupted context. This
> return address is the sigreturn() system call, found in libc. In
> order for the kernel to know the address of sigreturn, it needs to
> be told in advance; that's what sigsetreturn() does.

This is what Linux uses the sa_restorer in `struct sigaction' for.  I
think it's a better interface then sigsetreturn() so consider
implementing it this way and not provide sigsetreturn.

-- 
---------------.      drepper at gnu.org  ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Cygnus Solutions `--' drepper at cygnus.com   `------------------------


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: [parisc-linux] 'architected'?
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So, I've been rereading some docs lately, and am wondering what
'architected' really is.  

Here's an example, dug up by Dave Kennedy.  This is on page 3, under the
heading '2. PDC Procedures' in pdc.pdf:

"The architected operation of a module (including execution of a PDC)
must not require the use of any non-architected PDC procedures.  It must
also not require the use of any non-architected options in architected
PDC produces."

Can someone at HP clarify?

- Alex


-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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>This is what Linux uses the sa_restorer in `struct sigaction' for.  I
>think it's a better interface then sigsetreturn() so consider
>implementing it this way and not provide sigsetreturn.

My Linux manual page for sigaction states that "the sa_restorer element 
is obsolete and should not be used."

Even if it's not obsolete, how would it be used? Is the programmer 
supposed to pass the address of sigreturn() (or equivalent) every time it 
calls sigaction, or is the first time sufficient? Either way, I don't see 
how this is a better interface than sigsetreturn().

Even better would be to dispense with a user-space sigreturn() 
completely. In shared-bound programs, where procedures return either with 
a long return sequence (LDSID, MTSP, BE) or via an export stub, the 
kernel could supply an address in kernel space, and the signal handlers 
would return correctly. This is the approach we take for 64-bit HP-UX, 
where we can assume PA-RISC 2.0 and the use of BVE for returns. This 
approach would also work for a flat address space.

Then the only challenge is to identify the interrupt marker on the stack 
correctly during a stack unwind. On 32-bit HP-UX today, this is done by 
setting a special flag in the stack unwind descriptor for sigreturn(). On 
64-bit HP-UX, the kernel passes the address of a tiny unwind table for 
sigreturn() at program startup, and the runtime loader treats this as if 
sigreturn() were in a shared object of its own.

-cary


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From: LaMont Jones <lamont@security.hp.com>
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Subject: Re: [parisc-linux] 'architected'?
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> So, I've been rereading some docs lately, and am wondering what
> 'architected' really is.  

> Here's an example, dug up by Dave Kennedy.  This is on page 3, under the
> heading '2. PDC Procedures' in pdc.pdf:

> "The architected operation of a module (including execution of a PDC)
> must not require the use of any non-architected PDC procedures.  It must
> also not require the use of any non-architected options in architected
> PDC produces."

I don't have the documents in front of me, so forgive me if I get a name
or 6 wrong...  The PDC Procedures Document (and anything with the same
cover page, such as the Generic Modules Document) comprise what used to
be called the "Architecture Control Document."  An "architected" thing
is discussed in those documents, un-architected things generally are not.
Just to make matters interesting, you will see mention in the documents
to SV (software version specific), and HV (hardware version specific)
features.

The paragraph you cite indicates that hardware (modules) cannot require
that an OS author perform HV PDC (arg0>=128) calls (or other funky stuff
like DIAG instructions, or poking magic addresses not spelled out in the
architecture document) in order to use the hardware in the system.  In
this case, "use" pretty much means anything that generic OS software
needs to do with the module to initialize it.  In other words, the bus
walk.

Sadly, certain hardware is not quite compliant with the architecture, in
that it violates the very paragraph you cite.  Most notably (from our
recent discussions), the bus walk of the 7[235]0 requires magic knowledge
of where things are and how to poke them nicely.

Does that help any?
lamont


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From: Philipp Rumpf <prumpf@suse.de>
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> So, I've been rereading some docs lately, and am wondering what
> 'architected' really is.  

Isn't the obvious meaning "defined by the architecture" as opposed to
implementation-specific ?

> "The architected operation of a module (including execution of a PDC)
> must not require the use of any non-architected PDC procedures.  It must
> also not require the use of any non-architected options in architected
> PDC produces."

"You don't have to do implementation-specific things unless you want to do
implementation-specific things", I guess.

	Philipp Rumpf


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Philipp Rumpf wrote:
> 
> > So, I've been rereading some docs lately, and am wondering what
> > 'architected' really is.
> 
> Isn't the obvious meaning "defined by the architecture" as opposed to
> implementation-specific ?

Sure.  But which architecture?  PA-RISC? The module's design?

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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I have some questions about GSC.

1. 
First, I'm working with Dave Kennedy on some code that'll walk through
PDC to see all the devices on the box.  I'm using PDC_IODC to walk
through the devices.  This requires that I pass it an hpa, which
requires the bus id number.  Right now we just walk through all the
different busses to detect all the possible hardware.  

How are bus IDs assigned, and how can we read that?

2. 

On SMP PA 1.1 boxes, is there one GSC per CPU, or do all the CPUs share
the same GSC?

3. 

Does this concept of IOFlex work on non-GSC busses?

There's more coming.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: [parisc-linux] static shell...
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I've built a static sash binary, it's at:

ftp://puffin.external.hp.com/pub/src/sash-2.1-hpux.tar.gz

or similiar.

- Alex
-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Subject: [parisc-linux] Signals
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Is anyone looking into the signal handling and delivery stuff right now?
This is one of the few remaining independent areas; your chance to become
an expert on Linux and HPUX signalling :-)

-- 
Matthew Wilcox <willy@bofh.ai> <willy@thepuffingroup.com>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Gerhard Klein <G.Klein@edelmann.de>
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Subject: [parisc-linux] latest files and HOWTO for installation
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Hello,

can anyone tell me where I will find the latest files and HOWTO for
installation of parisc linux.

Thanks


Gerhard

--
http://www.edelmann.de
mailto:G.Klein@edelmann.de
Phone: +49 7321 340 368
Fax:   +49 7321 340 363



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From: Ryan Bradetich <rbradetich@uswest.net>
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I am willing to give this a try.  I just got my C200 home, and will start working
on this in the next few days.  Anyone want to give a newbie some pointers on
where to look?

Thanks,
-Ryan


Matthew Wilcox wrote:

> Is anyone looking into the signal handling and delivery stuff right now?
> This is one of the few remaining independent areas; your chance to become
> an expert on Linux and HPUX signalling :-)
>
> --
> Matthew Wilcox <willy@bofh.ai> <willy@thepuffingroup.com>
> "Windows and MacOS are products, contrived by engineers in the service of
> specific companies. Unix, by contrast, is not so much a product as it is a
> painstakingly compiled oral history of the hacker subculture." - N Stephenson
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] initrd/ramdisk-Status...
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Hello,

After my last commits, I think it is time to inform the list of the status
of initrd:

The first: initrd via bootloader should be usable now....

Internals / How to use:
I programmed it in such a way, that the bootable image in arch/parisc/boot/
holds a directory-structure for up to 63 possible ramdisks, which can be
selected during boot via initrd=<number> or initrd=<name>.  
The reason for adding support for multiple ramdisks is, that distributions
later can add easier support for multiple/different machines in one bootfile.

Ready-made-ramdisks with a name of "ramdisk.bin", which resides in the
main-directory of the Linux-Sources, will be automatically added during a "make
Image".  More ramdisks can be added at any time with the program
arch/parisc/boot/addramdisk.

The bootloader will print at startup a list of all available ramdisks and
loads the first (if any) ramdisk by default. 
More, the bootloader gives you the possibility to change the commandline (and
the initrd=-command) if it is started via "boot lan isl" or "boot alt isl"... 

Memory-Layout:
Since I didnt knew, where to load the ramdisk I decided to load it to the end of the available RAM.
The adress will be printed during boot.


Ideas and comments are welcome,

Helge Deller.


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Subject: Re: [parisc-linux] initrd/ramdisk-Status...
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Xref: news.gmane.org gmane.linux.ports.parisc:9821

On Tue, Aug 24, 1999 at 09:11:58PM +0200, Helge Deller wrote:
> I programmed it in such a way, that the bootable image in arch/parisc/boot/
> holds a directory-structure for up to 63 possible ramdisks, which can be
> selected during boot via initrd=<number> or initrd=<name>.  
> The reason for adding support for multiple ramdisks is, that distributions
> later can add easier support for multiple/different machines in one bootfile.

Hang on, this doesn't make sense.  There should be no difference between
the binaries, the only difference should be the kernels.  I believe the
plan is to put UFS-reading code into the bootloader in any case (mkp?)
which makes all this a temporary hack; as it should be.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Grant Grundler <grundler@cup.hp.com>
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I finally managed to build a kernel from the 08/07/99 tar file.
Now I can't boot it!

I might need to update the source tree again but need
to figure out how CVS can operate through HP's firewall.


Here's the /etc/bootptab entry:
linuxferris:\
        hd=/linux/linux-2.2.3/arch/parisc/boot:\
        bf=Image:\
        vm=rfc1048:\
        ht=ether:\
        ha=0800097B9230:\
        sm=255.255.248.0:\
        ip=15.16.122.147

Where "/linux/linux-2.2.3" is the kernel source tree.

I also wasn't sure about the difference between
CONFIG_PA7100 and CONFIG_PA7300 in the .config file.
I thought the 715/100 is an older machine before 7300LC
was available and thus is PA7100. Is this right?

"lifls Image" returns
	lifls: Can't list Image; not a LIF volume

Whereas "file Image" says:
	Image:          lif file

<sigh>...can anyone explain this?


Lastly, I've attached the console output.

thanks,
grant


BOOT_ADMIN> inf

System model number: HP 9000/715/100
Processor revision 2.4  100MHz
Instruction Cache Size:  131072
Data Cache Size:         131072
Memory Size:  64 MB
Built in floating point coprocessor
Board Serial Number 40SM891817

BootRom Version    1.6  

auto boot on
auto search on
fastboot on

Primary boot path:    scsi.6.0
Alternate boot path:  lan.000000-000000.0.0
Console path:         graphics_1.1
Keyboard path:        ps2

LAN Station Addresses: 080009-7B9230
                       080009-7B9231


BOOT_ADMIN> sea lan

Searching for potential boot device.
This may take several minutes.

To discontinue, press ESCAPE.

   Device Path              Device Type
   -----------              -----------
   lan.15.16.121.48.3.52                         


BOOT_ADMIN> bo lan.15.16.121.48.3.52
0x06.C740


Attempting to boot.

Loading Initial Program Loader

0x06.8007
0x06.8007
0x06.8007
0x06.8007

ERROR: Cannot load IPL, error detected

0x06.C7F0
Boot process failed. press <ESCAPE> to Continue.


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Xref: news.gmane.org gmane.linux.ports.parisc:9823

On Tue, Aug 24, 1999 at 02:21:35PM -0700, Grant Grundler wrote:
> I finally managed to build a kernel from the 08/07/99 tar file.

I assume you mean 07/Aug/99 rather than 08/Jul/99?  :-)

> Now I can't boot it!
> 
> I might need to update the source tree again but need
> to figure out how CVS can operate through HP's firewall.

Can you ssh out?  CVS_RSH=ssh should do the trick if so.

> I also wasn't sure about the difference between
> CONFIG_PA7100 and CONFIG_PA7300 in the .config file.
> I thought the 715/100 is an older machine before 7300LC
> was available and thus is PA7100. Is this right?

Well, according to /usr/sam/lib/mo/sched.models (a very useful file!)

715     1.1c    PA7100LC

It doesn't mention the submodels explicitly.  However,

http://www.thepuffingroup.com/parisc/hp9000_models.html

says the 715/100 (both variants!) have PCXL CPUs which is the same as that
on the 712 models, which we know to be the 7100LC.

Sorry I can't be of any help on the actual problem though...

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Whee! ftp://puffin.external.hp.com/pub/parisc/cvs fixed.
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There's been some pretty large problems with
ftp://puffin.external.hp.com/pub/parisc/cvs in the past.

Those difficult times are behind us, and you should now, on a daily
basis, be able to ftp down the latest source tree for binutils, egcs and
more importantly the kernel.



- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Grant Grundler wrote:
> 
> I finally managed to build a kernel from the 08/07/99 tar file.
> Now I can't boot it!

No problem.  We've been through this a lot.

You should really grab the latest kernel, a lot has changed since either
the July 8th or August 7th release.  CVS is really the better way to
handle this, but you can ftp down the latest (fixed!) source tree from
ftp://puffin.external.hp.com/pub/parisc/cvs .

I know there's some problems with our LIF header not being complete, but
there's not a lot we can do about this until we have docs on LIF.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Subject: Fwd: Re: [parisc-linux] initrd/ramdisk-Status...
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----------  Weitergeleitete Nachricht  ----------
Subject: Re: [parisc-linux] initrd/ramdisk-Status...
Date: Wed, 25 Aug 1999 00:37:55 +0200
From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>


Hi Matthew,

Am Tue, 24 Aug 1999 schrieben Sie:
> On Tue, Aug 24, 1999 at 09:11:58PM +0200, Helge Deller wrote:
> > I programmed it in such a way, that the bootable image in arch/parisc/boot/
> > holds a directory-structure for up to 63 possible ramdisks, which can be
> > selected during boot via initrd=<number> or initrd=<name>.  
> > The reason for adding support for multiple ramdisks is, that distributions
> > later can add easier support for multiple/different machines in one bootfile.
> 

> Hang on, this doesn't make sense.  There should be no difference between
> the binaries, the only difference should be the kernels.  

Yes, maybe I could change it to select the kernel..... What do you think ?
On the other side, there also could be different binaries for PA1.x / PA2.

> I believe the
> plan is to put UFS-reading code into the bootloader in any case (mkp?)
> which makes all this a temporary hack; as it should be.

Yes of course is UFS-reading the most important part, but how would you do
UFS-reading over Network or from a DAT on a new system without preinstalled fs
or unformatted fs ?

Helge.

> 
> -- 
> Matthew Wilcox <willy@bofh.ai>
> "Windows and MacOS are products, contrived by engineers in the service of
> specific companies. Unix, by contrast, is not so much a product as it is a
> painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Matthew Wilcox wrote:
> On Tue, Aug 24, 1999 at 02:21:35PM -0700, Grant Grundler wrote:
> > I finally managed to build a kernel from the 08/07/99 tar file.
> 
> I assume you mean 07/Aug/99 rather than 08/Jul/99?  :-)

Yes - sorry about the convoluted american date notation.
The linux-2.2.3-19990808.tar.gz is only 291 bytes.
19990807 was the last "full" tarball.

> > Now I can't boot it!
> > 
> > I might need to update the source tree again but need
> > to figure out how CVS can operate through HP's firewall.
> 
> Can you ssh out?  CVS_RSH=ssh should do the trick if so.

Didn't have ssh...but "socksify" command seems to work
rather nicely. Found it in /opt/socks/bin and cvs can now
talk to the puffin.external.hp.com.


> > I also wasn't sure about the difference between
> > CONFIG_PA7100 and CONFIG_PA7300 in the .config file.
> > I thought the 715/100 is an older machine before 7300LC
> > was available and thus is PA7100. Is this right?
> 
> Well, according to /usr/sam/lib/mo/sched.models (a very useful file!)
> 
> 715     1.1c    PA7100LC

Forgot about this table...good thinking.

> 
> It doesn't mention the submodels explicitly.  However,
> 
> http://www.thepuffingroup.com/parisc/hp9000_models.html
> 
> says the 715/100 (both variants!) have PCXL CPUs which is the same as that
> on the 712 models, which we know to be the 7100LC.
> 
> Sorry I can't be of any help on the actual problem though...

This already helped...I'll assume CONFIG_PA7100 means PA7100LC.

BTW, I went through the linux/.config file and found conflicting
options enabled (eg. 712 was enabled). So, I'm rebuilding...and
we'll see what happens.

thanks,
grant


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> > Sorry I can't be of any help on the actual problem though...
> 
> This already helped...I'll assume CONFIG_PA7100 means PA7100LC.
> 
> BTW, I went through the linux/.config file and found conflicting
> options enabled (eg. 712 was enabled). So, I'm rebuilding...and
> we'll see what happens.

Right now CONFIG_PA7100 and CONFIG_PA7300LC don't do anything, so you
don't need to be worried about that.


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To: Grant Grundler <grundler@cup.hp.com>
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Grant Grundler wrote:
> Matthew Wilcox wrote:
> The linux-2.2.3-19990808.tar.gz is only 291 bytes.
> 19990807 was the last "full" tarball.

Actually, I've fixed this now and now you should find a splendid 13MB
file named linux-2.2.1-19990824.tar.gz.

> > Can you ssh out?  CVS_RSH=ssh should do the trick if so.
> 
> Didn't have ssh...but "socksify" command seems to work
> rather nicely. Found it in /opt/socks/bin and cvs can now
> talk to the puffin.external.hp.com.

I'm heavenly ignorant of socks, but if you intend to commit code, you
really have to get ssh working.  It's the only way we can know that you
are you when you commit code, and makes life a lot simpler.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Benjamin Graham <BGraham@esigroup.com>
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Subject: [parisc-linux] HP 712/60 AND Linux
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Hello, I knew there had to be a PA-RISC port in the work, heh been looking.
I just bought a HP 712/60Mhz PA-RISC based HP/UX 10.20 workstation and am
interested greatly in adding Linux to it.  I also figured I would let you
all know, I paid 150$ with a monitor and keyboard but no monitor.  If anyone
else is interested in buying them the man to contact is:
Ryan D. Roberts
Compass Corporate Systems, Inc.
3105 Congress Avenue
Plano, Texas 75025
972-208-3660
fax 972-208-3659
ryan.roberts@compass-corp.com <mailto:ryan.roberts@compass-corp.com> 
 
He had approx 100 when I talked to him and he was seemed to be able to get
more later.  If anyone is interested in them for development machines for
this project, let him know, he is interested in running Linux on them as
well.

Thank you for your time,
Benjamin Graham
Network Engineer
Bgraham@esigroup.com <mailto:Bgraham@esigroup.com> 
501-975-0840 x239


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Matthew Wilcox wrote:
> > I also wasn't sure about the difference between
> > CONFIG_PA7100 and CONFIG_PA7300 in the .config file.
> > I thought the 715/100 is an older machine before 7300LC
> > was available and thus is PA7100. Is this right?
> 
> Well, according to /usr/sam/lib/mo/sched.models (a very useful file!)
> 
> 715     1.1c    PA7100LC

On my HP-UX 10.20 machine the path is /usr/lib/sched.models

> It doesn't mention the submodels explicitly.  However,

Nor the "internal" project names...most people I've worked
have no clue what's in an F20 or I60 (and I don't either).
One of those gaps between marketing and developement.

> http://www.thepuffingroup.com/parisc/hp9000_models.html
> 
> says the 715/100 (both variants!) have PCXL CPUs which is the same as that
> on the 712 models, which we know to be the 7100LC.

Other HP folks:
1) Difference between 7100 and 7100LC the mainly integration of GSC interface?
(ignore clock speed differences)
2) Is PCXL really 7100 *and* 7100LC?

I see T500 used 7100s and I'm certain no GSC bus was present...

grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] Thoughts on arch/parisc/irq.c
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linux/arch/parisc/kernel/irq.c:irq_alloc()/request_irq() seems to be
the method to allocate EIRR bits and register ISRs with PA ext_intr
handler. Dino will call this to initialize it's own EIM register (IAR0).
But to program IAR0 Dino also needs the processor HPA of whatever
processor it is supposed to interrupt.
Is there an interface to return HPAs?

(BTW - anyone else modifying gecko/dino.c?)

Support for PCI 2.2 Message Signalled Interrupts requires
a similar interface - Dino can support this if the interface
were present and PCI drivers wanted to use it.


More thoughts on basic PA interrupt handling:

o Do GBD or other psuedo drivers need to reserve EIRR bits?
  Ie soft interrupts to reschedule work at lower SPL levels.

o associating SPL levels to specific EIRR bits allows changing SPL
  much faster. ie. if EIRR bit 1 is used for SPL2, then setting
  bit 1 in the SPL5 bit mask to disable EIRR bit 1 from generating
  an interrupt makes it very easy to change from SPL2 to SPL5.
  Eg. SPLHI just disables all EIRR bits.

o PA2.0 architecture defines EIRR to be 64-bits wide.
  irq_alloc() and request_irq() hard code 31.
  Using a #define with "ifdef" around it for 32/64 bit
  differences would be better. Just trying to make the
  transition that direction easier.

o Each processor can have it's own EIRR switch table.
  Thus, "irq_action[]" could be an an array hanging off a per processor
  data structure. This is interesting for large configurations where
  the 31 bits aren't enough and sharing isn't supported.

o EIRR bits can be shared just like IRQ lines. A wrapper gets
  put into the irq_action[] field when sharing is required
  (eg run out of EIRR bits to hand out). The wrapper function
  simple calls all ISR's registered for a given EIRR bit.
  This can be ignored for now since A-class/712/715 etc
  configurations probably won't need this.

grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Alan Cox wrote:
...
> > o Do GBD or other psuedo drivers need to reserve EIRR bits?
> >   Ie soft interrupts to reschedule work at lower SPL levels.
> 
> Linux has no notion of SPL levels at all. The model is
> 

Alan - looks like something got dropped here. Try again?


> Hardware interrupt. These live in a unified space described by a cookie.
> We map the cookie to the irq number on a PC but that is optional. Drivers
> only know about irqs as a cookie.

I think there is going to a problem with "cookies" on PA.
The problem is GSC devices need to program an "EIM" register.
(For Dino, this is IAR0). The contents of the EIM register
are a processor HPA (bits 11-31) and EIRR bit number (bits 0-4;
ie a value 0-31). The location of this register is NOT
defined by PA I/O architecture - or at least not well defined.
Is this a real problem or not?

Another tidbit: I know of only one device which can use "6-bit"
(0-63) EIRR vectors. GSC and PCI devices which are capable of mastering
their own interrupt transactions can also use 6-bits. 6-bits is
obviously only supportable running a 64-bit kernel binary.


> Bottom half handlers. We invoke these on the path out of an irq before
> returning to the normal scheduled universe. mark_bh() sets a bh to be run
> on the next return. BH's are not run if they are already running - they
> are single threaded with respect to each other right now - that may change
> to be 'with respect to self' one day.

For single CPU is doesn't matter. For SMP scalability it might.

> Interrupts may occur during a bh, we normally dont allow interrupts during
> an IRQ handler on the same CPU. 

SPL levels allow the system clock to always get service regardless of how
badly an ISR behaves on the interrupt stack. SPL levels also allow
the clock to "reschedule" work at a lower priority on the interrupt stack
to guarantee the timeout is called "pretty soon". SPL levels also
allow device drivers to service IRQs while the bottom half is active.
Allowing this nesting of SPL levels permits scheduling on the interrupt
stack. Any particular reason for not allowing this?
(eg abuse by driver writers)

thanks,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Xref: news.gmane.org gmane.linux.ports.parisc:9834

> (BTW - anyone else modifying gecko/dino.c?)

Not just at the moment

> o Do GBD or other psuedo drivers need to reserve EIRR bits?
>   Ie soft interrupts to reschedule work at lower SPL levels.

Linux has no notion of SPL levels at all. The model is

Hardware interrupt. These live in a unified space described by a cookie.
We map the cookie to the irq number on a PC but that is optional. Drivers
only know about irqs as a cookie.

Bottom half handlers. We invoke these on the path out of an irq before
returning to the normal scheduled universe. mark_bh() sets a bh to be run
on the next return. BH's are not run if they are already running - they
are single threaded with respect to each other right now - that may change
to be 'with respect to self' one day.

Interrupts may occur during a bh, we normally dont allow interrupts during
an IRQ handler on the same CPU. 

> o Each processor can have it's own EIRR switch table.
>   Thus, "irq_action[]" could be an an array hanging off a per processor
>   data structure. This is interesting for large configurations where
>   the 31 bits aren't enough and sharing isn't supported.

Ok


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Thoughts on arch/parisc/irq.c
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Xref: news.gmane.org gmane.linux.ports.parisc:9835

> Alan - looks like something got dropped here. Try again?

The perils of 2am posting - add the word "different"

> I think there is going to a problem with "cookies" on PA.
> The problem is GSC devices need to program an "EIM" register.
> (For Dino, this is IAR0). The contents of the EIM register
> are a processor HPA (bits 11-31) and EIRR bit number (bits 0-4;
> ie a value 0-31). The location of this register is NOT
> defined by PA I/O architecture - or at least not well defined.
> Is this a real problem or not?

It isnt. If need be you hand out irq numbers to drivers that are
indexes into an array that gives all the real gsc/pci mappings, registers
and other goodies.

> > on the next return. BH's are not run if they are already running - they
> > are single threaded with respect to each other right now - that may change
> > to be 'with respect to self' one day.
> 
> For single CPU is doesn't matter. For SMP scalability it might.

Thats why it might change 

> SPL levels allow the system clock to always get service regardless of how
> badly an ISR behaves on the interrupt stack. SPL levels also allow

We flame people who write badly behaving irq handlers instead. 

> to guarantee the timeout is called "pretty soon". SPL levels also
> allow device drivers to service IRQs while the bottom half is active.

We service IRQs with the bottom half active. The idea is that all non
immediate processing occurs at bh layer - think of the BH system as a BSD
like kernel with only one SPL level.

Having one level reflects the realities of more machines and doesn't really
lose us anything. A typical example flow is

	user space
	[IRQ arrives]
		myether_irq
			handle ring buffer
			netif_rx(buffer)
		 	(marks the NET bh to run)
		end irq
		runs net_bh if not running, irqs are enabled
		process packets
		done
	user space


Alan


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Xref: news.gmane.org gmane.linux.ports.parisc:9836

> linux/arch/parisc/kernel/irq.c:irq_alloc()/request_irq() seems to be
> the method to allocate EIRR bits 

alloc_irq is just a quick hack to try to avoid sharing interrupt handlers
if possible.  It returns the next unused IRQ but isn't atomic right now.

> and register ISRs with PA ext_intr
> handler. Dino will call this to initialize it's own EIM register (IAR0).
> But to program IAR0 Dino also needs the processor HPA of whatever
> processor it is supposed to interrupt.

Not exactly right.  You can just use the broadcast EIR address (which might
be GSC-specific but we don't have docs on other hardware yet).

I am not sure how GSC devices will be managed, but if we just chose to be lame
and do it like PCI, there will be a list of GSC devices and the Dino driver
just can do gsc_writel(0xfffe0000+dev->irq, dev->hpa + DINO_IAR0);

> (BTW - anyone else modifying gecko/dino.c?)

I think I am pretty synched right now.  The GSC handling is not in place yet so
perhaps you should hardwire everything until it is.

> Support for PCI 2.2 Message Signalled Interrupts requires
> a similar interface - Dino can support this if the interface
> were present and PCI drivers wanted to use it.

I have no idea what that is.  I don't think it is in the Dino docs I have either
so I am afraid I cannot say anything about it.

> o Do GBD or other psuedo drivers need to reserve EIRR bits?
>   Ie soft interrupts to reschedule work at lower SPL levels.

I don't think so.

> o PA2.0 architecture defines EIRR to be 64-bits wide.
>   irq_alloc() and request_irq() hard code 31.
>   Using a #define with "ifdef" around it for 32/64 bit
>   differences would be better. Just trying to make the
>   transition that direction easier.

Dino at least does not support 6-bit interrupt code according to our
documentation.

> o Each processor can have it's own EIRR switch table.
>   Thus, "irq_action[]" could be an an array hanging off a per processor
>   data structure. This is interesting for large configurations where
>   the 31 bits aren't enough and sharing isn't supported.

I don't want to try things before they get tested by other architectures first
unless necessary.  I don't think per-processor irq_actions are a way to go, but
we can have another look at it when it's time to.


> o EIRR bits can be shared just like IRQ lines. A wrapper gets
>   put into the irq_action[] field when sharing is required
>   (eg run out of EIRR bits to hand out). The wrapper function

Once again, not yet.  There is no way I want to know of to run out of EIRR bits
on 712, 715 or A180s, so I'd like to get us up and running on those first.

	Philipp Rumpf


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Xref: news.gmane.org gmane.linux.ports.parisc:9837

> > Hardware interrupt. These live in a unified space described by a cookie.
> > We map the cookie to the irq number on a PC but that is optional. Drivers
> > only know about irqs as a cookie.

> I think there is going to a problem with "cookies" on PA.
> The problem is GSC devices need to program an "EIM" register.
> (For Dino, this is IAR0). The contents of the EIM register
> are a processor HPA (bits 11-31) and EIRR bit number (bits 0-4;

the Dino documentations says bits 5-31 are HPA but as long as 5-10 are 0 we
don't have to care.

> ie a value 0-31). The location of this register is NOT
> defined by PA I/O architecture - or at least not well defined.
> Is this a real problem or not?

No.  You just do
gsc_writel(0xfffe0000 + dev->irq, dev->hpa + DEVICE_SPECIFIC_OFFSET);
right after request_irq(dev->irq, ...);

> Another tidbit: I know of only one device which can use "6-bit"
> (0-63) EIRR vectors. GSC and PCI devices which are capable of mastering
> their own interrupt transactions can also use 6-bits. 6-bits is
> obviously only supportable running a 64-bit kernel binary.

Is it ok with you if we worry about SMP and PA2.0 boxes later ?

	Philipp Rumpf


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In-Reply-To: <199908261629.JAA12121@milano.cup.hp.com> from "Grant Grundler" at Aug 26, 99 09:29:39 am
Xref: news.gmane.org gmane.linux.ports.parisc:9838

> I'm still convinced PA Processor HPAs should be passed to GSC drivers
> seperately (eg dino.c).  On IA64 platforms, I/O SAPIC and Local Sapic
> also seperate the target address and "vector".  I left David Mossberger
> voice mail about this - I suspect/hope the problem has already
> been solved.

Passing that kind of info out to arch specific drivers is ok. The rest of
the system wants a single opaque long cookie (with or without milk) . You
can even make that cookie a cast on a struct addr.

> Not HP's style. Too hostile. The process is to file "Change Requests"
> - a kind of black hole where managers pull statistics.  :^)

I've dealt with HP in another project. Im glad TPG are doing the HP interfacing
not me 8)

> I see three levels: block all IRQs, enable IRQs, and bh.
> It sounds like those correspond to SPLHI/SPL7, SPL5, and SPL2.
> Am I still on the right track?

Yes I think so. Im not that hot on the old BSD terminology

> implement more than one level of SPL. But I now agree not much is lost
> since two important levels are supported.  As long as the clock gets
> serviced, the timeouts it generates would run at about the same time.
> More on this below.

We never do timeouts in loops in an IRQ handler by checking versus the
clock. We also tend to use RDTSC or similar features if available - apic
clock, etc so we recover lost ticks too

> in this context. Knowing that Intel is eager to support UDI on linux,
> I would be worried about how UDI is made to work. (Hint: I worked on

I don't know any major Linux hacker who views UDI with anything but 
mild amusement. Linux people tend to be latency freaks.

> After doing this exercise, I agree with Alan - not much is lost.
> The ATT flavor Unixes need SPL6 because streams processing (another
> message passing subsystem) can take a really long time in the IRQ
> context and thus block the clock.

The crazies at gcom who did some streams based stuff for Linux (not in the
standard kernel) do their streams processing in the bh context for some
reason. 

Where we get drivers for hardware that is really horrible we sometimes do

	my_irq
		mark_bh
		mask irq
		return from irq

as the entire IRQ handler - the aha152x scsi controller is an example of
that. Thankfully for the devices people buy when they want speed you don't
have that problem.

Alan


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> No.  You just do
> gsc_writel(0xfffe0000 + dev->irq, dev->hpa + DEVICE_SPECIFIC_OFFSET);
> right after request_irq(dev->irq, ...);
> Is it ok with you if we worry about SMP and PA2.0 boxes later ?

Writing to the specific HPA is most likely a SMP issue as well, but if we
go the route of using global broadcast interrupts, we should leave some
__really__ large handwriting on the wall for when SMP gets dealt with.
The mad dash to handle an interrupt is a great way to thrash the machine.

Likewise, if there's a clean way to get the processor HPA in the IRQ value,
there is no reason not to do it now, and avoid tracking down the problems
later.

lamont


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Philipp Rumpf:
> the Dino documentations says bits 5-31 are HPA but as long as 5-10 are 0 we
> don't have to care.

FYI - All PA device addresses are 4k page aligned.
I've seen devices alias within a page but the IODC can only
report the number of 4k pages a devices uses - ergo 4K aligned.

> 
> > ie a value 0-31). The location of this register is NOT
> > defined by PA I/O architecture - or at least not well defined.
> > Is this a real problem or not?
> 
> No.  You just do
> gsc_writel(0xfffe0000 + dev->irq, dev->hpa + DEVICE_SPECIFIC_OFFSET);
> right after request_irq(dev->irq, ...);

Ok - this is another SMP issue...I'll hardcode 0xfffe0000 for now. 

Platform	Processor HPA
--------	-------------
712/80		0xfffbe000
715/100		0xfffbe000
B132L		0xfffbe000
B180L		0xfffbe000
C200+		0xfffa0000

> > Another tidbit: I know of only one device which can use "6-bit"
> > (0-63) EIRR vectors. GSC and PCI devices which are capable of mastering
> > their own interrupt transactions can also use 6-bits. 6-bits is
> > obviously only supportable running a 64-bit kernel binary.
> 
> Is it ok with you if we worry about SMP and PA2.0 boxes later ?

Absolutely. I brought this up so it doesn't have to get redesigned
by whoever feels like tackling those issues.  Note the subject line.
I'm just not into doing thing two or three times in a row.

grant

> 
> 	Philipp Rumpf

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Grant Grundler wrote:
> 
> Ok - this is another SMP issue...I'll hardcode 0xfffe0000 for now.
> 
> Platform        Processor HPA
> --------        -------------
> 712/80          0xfffbe000
> 715/100         0xfffbe000
> B132L           0xfffbe000
> B180L           0xfffbe000
> C200+           0xfffa0000

For what it's worth, I have code in my soon-to-be-committed inventory
code that detects this.  The A180C is at 0xfffbe000 also.

I'm just going through the difficulty of merging my code into the
tree...

Here's the output of my code:

Doing the inventory of the machine
     HPA of the processor: fffbe000
Checking CPU's bus: 
Located Staccato L2 180 (A Class 180) (0) on bus 0x0 at 0xfffbe000,
versions 0x0
Located Staccato L2 180 Memory (1) on bus 0x1 at 0xfffbf000, versions
0x8b, 0x00
Bus does not implement On Line Replacement.
Checking for peripherals...
Located Dino PCI Bridge (13) on bus 0x0 at 0xfff80000, versions 0x680,
0x3, 0xa0
Located Dino PS2 Keyboard (10) on bus 0x1 at 0xfff81000, versions 0x7,
0x0, 0x90
Located unknown device (11) on bus 0x0 at 0xffd00000, versions 0x5f,
0x0, 0x81,0
Located Phantom PseudoBC GSC+ Port (7) on bus 0x0 at 0xffc00000,
versions 0x5040
Located Phantom PseudoBC GSC+ Port (7) on bus 0x1 at 0xffc01000,
versions 0x5050


- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Philipp Rumpf <prumpf@suse.de>
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> > the Dino documentations says bits 5-31 are HPA but as long as 5-10 are 0 we
> > don't have to care.
> FYI - All PA device addresses are 4k page aligned.

Thanks.  This does not conflict with dino decoding the not defined bits too,
though.
> > No.  You just do
> > gsc_writel(0xfffe0000 + dev->irq, dev->hpa + DEVICE_SPECIFIC_OFFSET);
> > right after request_irq(dev->irq, ...);
> 
> Ok - this is another SMP issue...I'll hardcode 0xfffe0000 for now. 
> 
> Platform	Processor HPA
> --------	-------------
> 712/80	0xfffbe000
> 715/100	0xfffbe000
> B132L		0xfffbe000
> B180L		0xfffbe000

If this is a 7300LC, the processor EIR depends on the bus id.

	Philipp Rumpf


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Is anyone working on the keyboard driver for the 715/33 (and presumably
some other models)?  It appears to be an HIL keyboard, and there's
already an HIL driver in arch/m68k/hp300/hil.c.  Is this likely to work?
Is there any documentation available for this?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Hello all, I recently was given a 715/50 to play around with. Its
got an old version of HP/UX running on it and I am getting ready to dump
that and look into programming a bit on parisc-linux. Any direction on
what can be persued?

Of course my current goal is to get the kernel to cross-compile and then
boot from a zip drive... (Looking for that It works message...)


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Xref: news.gmane.org gmane.linux.ports.parisc:9845

On Sat, Aug 28, 1999 at 10:30:32PM -0500, emolitor@molitor.org wrote:
> 
> Hello all, I recently was given a 715/50 to play around with. Its
> got an old version of HP/UX running on it and I am getting ready to dump
> that and look into programming a bit on parisc-linux. Any direction on
> what can be persued?
> 
> Of course my current goal is to get the kernel to cross-compile and then
> boot from a zip drive... (Looking for that It works message...)

For a start, don't ditch the HP/UX it has running on it unless you have
another HP/UX box around to compile kernels with.  Right now, we need to
use the HP linker.

The kernel as it stands right now probably won't boot on your 715/50.
I'm waiting for Philipp to sort out a couple of problems and then I'm
going to try to track down why it doesn't boot on my 715/33; the kernel
I checked out a week ago wouldn't boot until I put in debugging printks.
grr.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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On Sun, 29 Aug 1999, Matthew Wilcox wrote:

> On Sat, Aug 28, 1999 at 10:30:32PM -0500, emolitor@molitor.org wrote:
> > 
> > Hello all, I recently was given a 715/50 to play around with. Its
> > got an old version of HP/UX running on it and I am getting ready to dump
> > that and look into programming a bit on parisc-linux. Any direction on
> > what can be persued?
> > 
> > Of course my current goal is to get the kernel to cross-compile and then
> > boot from a zip drive... (Looking for that It works message...)
> 
> For a start, don't ditch the HP/UX it has running on it unless you have
> another HP/UX box around to compile kernels with.  Right now, we need to
> use the HP linker.
> 

hmmm, ok, looks like I'll have to reinstall HP/UX. That's ok, I need to do
a little (Ok, a lot) of research on the PARisc architecture to get
familiar with it.

> The kernel as it stands right now probably won't boot on your 715/50.
> I'm waiting for Philipp to sort out a couple of problems and then I'm
> going to try to track down why it doesn't boot on my 715/33; the kernel
> I checked out a week ago wouldn't boot until I put in debugging printks.
> grr.
> 

I am amazed at every hacker who has a full head of hair... (facial hair
does not count...)


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From: Steven Pritchard <steve@silug.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] more tools
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I've put some HP-UX 10.20 binaries of various things on
puffin.external.hp.com to go along with the 11.0 binaries I put there
a couple of months ago.  The 10.20 binaries should work on either
10.20 or 11.0.  Get them at

    ftp://puffin.external.hp.com/pub/parisc/binaries/depot/10.20/

(The 11.0 stuff is still there in depot/11.0/.)

Since I haven't managed to write up anything on how to package up
software for HP-UX yet, I figured I'd do the next best thing and just
script my build process.  There's a script called "build-bash.sh"
there that does more-or-less what rpm --rebuild would do on a Red Hat
box.  Hopefully it'll help somebody out there figure out how to build
HP-UX packages, assuming I'm not the only one who cares.  ;-)

I'll get some more stuff out there, including the latest CVS builds of
egcs and binutils, as soon as I can.

(Oh, BTW, the 10.20 stuff was built on a C240 with egcs.  Everything
*should* work properly on a PA-RISC 1.1 box, but I haven't actually
tested any of it anywhere but the build box.  If somebody could let me
know that the stuff works on a 700-series box, I'd appreciate it.)

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(217)698-1694             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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From: Mike Hibler <mike@fast.cs.utah.edu>
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Subject: Re:  [parisc-linux] keyboard driver
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> Date: Sun, 29 Aug 1999 03:18:12 +0200
> From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
> To: parisc-linux@thepuffingroup.com
> Subject: [parisc-linux] keyboard driver
> 
> Is anyone working on the keyboard driver for the 715/33 (and presumably
> some other models)?  It appears to be an HIL keyboard, and there's
> already an HIL driver in arch/m68k/hp300/hil.c.  Is this likely to work?
> Is there any documentation available for this?
> 

The BSD HIL driver should pretty much "just work."

There are some differences in the register layout, but the 700 info should
all be available in the Mach code or the LASI ERS.  I will send out info
about the HIL ERS (part #, etc.) when I am at work tomorrow.  Presumably,
someone at HP can then dig up a copy.


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----- Forwarded message from Mike Hibler -----


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:9850

On Sun, Aug 29, 1999 at 08:19:21PM -0700, Bill Katz William" wrote:
> A few notes.  LASI doesn't have HIL, it has PS2.  For workstations
> of that vintage (that might have a LASI), the HIL megafunction was
> dropped into the WAX ASIC, which also has teh EISA bus bridge.
> 
> I've found the docs on the I/O subsystem for the immediately preceding
> set of workstations (715/33 /50, 735, etc), and have had it on my
> agenda to get it ready.  If that's a critical need, I'll try to
> get to it this week.  

I wouldn't call it a critical need by any stretch of the imagination.
I just wanted to point out we have an HIL driver already before someone
runs off to write one :-)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Mike Hibler <mike@fast.cs.utah.edu>
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> Date: Sun, 29 Aug 1999 19:35:53 -0600 (MDT)
> From: Mike Hibler <mike@fast.cs.utah.edu>
> To: Matthew.Wilcox@genedata.com, parisc-linux@thepuffingroup.com
> Subject: Re:  [parisc-linux] keyboard driver
> 
> > Date: Sun, 29 Aug 1999 03:18:12 +0200
> > From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
> > To: parisc-linux@thepuffingroup.com
> > Subject: [parisc-linux] keyboard driver
> > 
> > Is anyone working on the keyboard driver for the 715/33 (and presumably
> > some other models)?  It appears to be an HIL keyboard, and there's
> > already an HIL driver in arch/m68k/hp300/hil.c.  Is this likely to work?
> > Is there any documentation available for this?
> > 
> 
> The BSD HIL driver should pretty much "just work."
> 
> There are some differences in the register layout, but the 700 info should
> all be available in the Mach code or the LASI ERS.  I will send out info
> about the HIL ERS (part #, etc.) when I am at work tomorrow.  Presumably,
> someone at HP can then dig up a copy.
> 

	SYSTEM DEVICE CONTROLLER
	MICROPROCESSOR FIRMWARE
	THEORY OF OPERATION
	FOR
	PART NUMBER
	1820-4784
	Dwg No. A-1820-4784-2
	23 - Feb - 1987

And here is another, unrelated, doc that was sitting next to the HIL spec:

	STANDARD TEXT INTERFACE
	For Graphics Devices
	Rev. 8.03
	April 11, 1991
	A-5960-1586-1

This is the "STI" ROM on graphics cards that easily allows you to do a
terminal emulator on the graphics console.


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From: Richard Muratti <rmurat@ibm.net>
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Subject: [parisc-linux] HP3000 928LX Support?
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Hi,

I have the opportunity to acquire a HP3000 928LX server
and would like to know if it is supported.

Thanks
Rick


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From: Hugo van der Kooij <Hugo.van.der.Kooij@caiw.nl>
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On Wed, 1 Sep 1999, Richard Muratti wrote:

> I have the opportunity to acquire a HP3000 928LX server
> and would like to know if it is supported.

HP3000 systems are not PA-RISC systems. They use the Motorola 68000 CPU
and you chould check the 68000 oport effort wether or not the unit may run
linux.

Hugo.

-- 
Hugo van der Kooij; Oranje Nassaustraat 16; 3155 VJ  Maasland
hvdkooij@caiw.nl	http://home.kabelfoon.nl/~hvdkooij/
--------------------------------------------------------------
Use of any of my email addresses for unsollicited (commercial)
    email is a clear intrusion of my privacy and illegal!


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From: Jeffrey A Law <law@cygnus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP3000 928LX Support?
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  In message <Pine.LNX.4.10.9909011730100.20806-100000@bastion.nl3155vj16.vande
rkooij.org>you write:
  > On Wed, 1 Sep 1999, Richard Muratti wrote:
  > 
  > > I have the opportunity to acquire a HP3000 928LX server
  > > and would like to know if it is supported.
  > 
  > HP3000 systems are not PA-RISC systems. They use the Motorola 68000 CPU
  > and you chould check the 68000 oport effort wether or not the unit may run
  > linux.
Newer HP3000s are PA systems.

jeff


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At 05:31 PM 9/1/99 +0200, Hugo van der Kooij wrote:

>HP3000 systems are not PA-RISC systems. They use the Motorola 68000 CPU
>and you chould check the 68000 oport effort wether or not the unit may run
>linux.

I think you're confusing the HP9000 300 series ... these are the Motorola
based machines. The HP3000 928LX is a PA 1.1 based machine, but is
not PCI.
--
Mark Klein                                    DIS International, Ltd.
http://www.dis.com                            415-892-8400
PGP Public Key Available
--


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From: Kirk Bresniker <kirkb@chrome.rose.hp.com>
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| On Wed, 1 Sep 1999, Richard Muratti wrote:
| 
| > I have the opportunity to acquire a HP3000 928LX server
| > and would like to know if it is supported.
| 
| HP3000 systems are not PA-RISC systems. They use the Motorola 68000 CPU
| and you chould check the 68000 oport effort wether or not the unit may run
| linux.
| 
| Hugo.

What?! The HP3000 systems are indeed PA-RISC. In fact, while there 
have been 68k HP-UX workstations the HP3000 have always had an
HP-designed architecture, first the 'classic' HP300 architecture
followed by PA-RISC.

As far as the 928LX, it is a PA-7100LC system, but features
HP-PB based I/O. I do not believe that anyone is working on
on this I/O architecture. 

KMB
--
+============================================================+
|       Kirk Bresniker    	(916) 748-2393		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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Hugo van der Kooij wrote:
> On Wed, 1 Sep 1999, Richard Muratti wrote:
> 
> > I have the opportunity to acquire a HP3000 928LX server
> > and would like to know if it is supported.
> 
> HP3000 systems are not PA-RISC systems. They use the Motorola 68000 CPU
> and you chould check the 68000 oport effort wether or not the unit may run
> linux.

[ I associate "HP3000" with the MPE products from CSY division]

I can't speak for HP3000 products more than 5 years old.
But recent HP3000 products are definitely PA-RISC.
Firmware is different but many of the platform components
are the same as K and T class machines.

grant

> 
> Hugo.
> 
> -- 
> Hugo van der Kooij; Oranje Nassaustraat 16; 3155 VJ  Maasland
> hvdkooij@caiw.nl	http://home.kabelfoon.nl/~hvdkooij/
> --------------------------------------------------------------
> Use of any of my email addresses for unsollicited (commercial)
>     email is a clear intrusion of my privacy and illegal!
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Subject: Re: [parisc-linux] HP3000 928LX Support? (fwd)
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Grant Grundler wrote:
|Hugo van der Kooij wrote:
|> On Wed, 1 Sep 1999, Richard Muratti wrote:
|> 
|> > I have the opportunity to acquire a HP3000 928LX server
|> > and would like to know if it is supported.
|> 
|> HP3000 systems are not PA-RISC systems. They use the Motorola 68000 CPU
|> and you chould check the 68000 oport effort wether or not the unit may run
|> linux.
|
|[ I associate "HP3000" with the MPE products from CSY division]
|
|I can't speak for HP3000 products more than 5 years old.
|But recent HP3000 products are definitely PA-RISC.
|Firmware is different but many of the platform components
|are the same as K and T class machines.
|
|grant

HP3000s were NEVER 680x0 based.  They were based on a proprietary 16 bit
stack-based architecture until about 1986.  After that they were PA-RISC
systems.  I'm pretty sure all that are identified with a 9xx number are
PA-risc.  Earlier machines had 2 digit model numbers, i.e.. HP3000/68.

I saw recently in the news where HP was suing a used computer dealer that was
buying s800 HPUX machines, changing the bootROMS and making them into HP3000
s900 machines and selling them for more money.  

I know very little about 9xx bootROMS, but there is a chance that Linux
will boot on it, since it doesn't check anytihing in the bootROM to see
if the BootROM forbids it from booting.  MPE will not boot on s800s.

However the unit could be old enough that it has I/O cards based on the
CIO or NIO (aka HP -pricision) bus.  It is unlikely anyone will ever bother
writing Linux drivers for those cards.

	-Bill Katz


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On Wed, 1 Sep 1999, Kirk Bresniker wrote:

> | On Wed, 1 Sep 1999, Richard Muratti wrote:
> | 
> | > I have the opportunity to acquire a HP3000 928LX server
> | > and would like to know if it is supported.
> | 
> | HP3000 systems are not PA-RISC systems. They use the Motorola 68000 CPU
> | and you chould check the 68000 oport effort wether or not the unit may run
> | linux.
> 
> What?! The HP3000 systems are indeed PA-RISC. In fact, while there 
> have been 68k HP-UX workstations the HP3000 have always had an
> HP-designed architecture, first the 'classic' HP300 architecture
> followed by PA-RISC.

How odd. Not quite what people told me around here.

Hugo.

-- 
Hugo van der Kooij; Oranje Nassaustraat 16; 3155 VJ  Maasland
hvdkooij@caiw.nl	http://home.kabelfoon.nl/~hvdkooij/
--------------------------------------------------------------
Use of any of my email addresses for unsollicited (commercial)
    email is a clear intrusion of my privacy and illegal!


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Subject: Re: [parisc-linux] HP3000 928LX Support?
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Re:

> > > I have the opportunity to acquire a HP3000 928LX server
> > > and would like to know if it is supported.
> > 
> > HP3000 systems are not PA-RISC systems. They use the Motorola 68000 CPU
...
> Firmware is different but many of the platform components
> are the same as K and T class machines.


The HP 3000/928 is a PA-RISC system (48 MHz PA7100LC (PCX-L)),
with HP-PB I/O (2 slots), 64 KB of integrated cache, floating point
co-processor, and a max memory of 512 MB.

It's 100% identical to the HP 9000 E25 (2-slot HP-PB model).

The firmware is 100% identical, AFAIK.

You could probably trade the HP 3000 for an E25 and get money back.

BTW, the "Classic HP 3000" models (those with a two-digit model number)
are 16-bit CISC, not Motorola.  All HP 3000s with a 3 digit model
number (e.g., 928) are PA-RISC.

If Linux is ever supported on an HP 9000 E25 (or any E## model), then
it will also run on an HP 3000 9x8 model.

-- 
Stan Sieler                                          sieler@allegro.com
                                         http://www.allegro.com/sieler/


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Bill Katz "(William)" wrote:
...
> However the unit could be old enough that it has I/O cards based on the
> CIO or NIO (aka HP -pricision) bus.  It is unlikely anyone will ever bother
> writing Linux drivers for those cards.

The whole point of linux is to use what's cheap and available.
I would rather say:
	It is unlikely anyone *in HP* will ever *get paid for* writing
	Linux drivers for CIO or NIO cards.

However, if documentation isn't publicly available, it would be
pretty "challenging" for someone outside HP to do anything with HP-PB.
And someone in HP might actually be masochistic enough to make
parisc-linux boot/scan on NIO bus machines. ;^)

grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Stan Seiler wrote:
|> > > I have the opportunity to acquire a HP3000 928LX server
|> > > and would like to know if it is supported.
|> > 
|> > HP3000 systems are not PA-RISC systems. They use the Motorola 68000 CPU
|...
|> Firmware is different but many of the platform components
|> are the same as K and T class machines.
|
|
|The HP 3000/928 is a PA-RISC system (48 MHz PA7100LC (PCX-L)),
|with HP-PB I/O (2 slots), 64 KB of integrated cache, floating point
|co-processor, and a max memory of 512 MB.
|
|It's 100% identical to the HP 9000 E25 (2-slot HP-PB model).
|

Oh, so it's a Wright Brothers :)  In that case your luck ought to be
pretty good if you only care about:

1) Internal LASI based LAN and SCSI

2) RS232 connected console

It will never support graphics.  But it's so close to a 712 that it should
certainly boot.  And the suggestion taht you trade it for something 
more closely resembling a workstation is certainly valid.

	-Bill


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From: Philipp Rumpf <prumpf@suse.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:9863

> Update of /home/cvs/parisc/linux/include/asm-parisc
> In directory puffin.external.hp.com:/tmp/cvs-serv4014/linux/include/asm-parisc
> 
> Modified Files:
> 	pci.h 
> Log Message:

> Update GSCtoPCI (Dino) bus adapter support. Have most of the design
> in place and what's my "first cut" implementation.

I don't want to sound aggressive, but I really do not see the point in most
of your changes.

Let's go through them:

 - renamed pci_{port,config,bus}_ops to {port,config,bus}_ops.

waste of struct namespace should asm/pci.h be included accidentally
(furthermore it strikes me as strange to have pci_bios_ops, but simply bus_ops.

 - typedef unsigned int irq_t;

the type of irqs is defined to be int (not unsigned int) in ABIs we cannot
change if we ever want to see a merged parisc kernel.

 - renamed PCI_NUM_BUS to MAX_BUSSES.

I think we really should restrict ourselves to exporting symbols, macros and
other names starting with PCI_ and pci_.  (I am aware this may be because it
took me way too long to synch the trees and that this just reflects the rest
of your code).

> Marked lots of stuff with "TODO" - I'll keep whacking at these.

 - "** TODO: I don't think we need the "bus" parameter. "dev""

ignoring your comment style ;), it really strikes me as a good idea to keep
the interface in place to support native-to-PCI bridges with more than one
bus on them.  It might be a good idea for those not to pass the "relative"
bus number to those instead of the absolute one, but that is just a change
in one spot as opposed to changing an interface and digging through several
drivers.

> Main issues to still be resolved are:
> o GSC device claim - how does dino driver learn about GSC devices

For that we need Alex's code, but it looks very much like we will have a list
of GSC devices like we currently have for PCI on systems where that is the
native bus.  Then, you will use gsc_find_device(u16 hversion); and be happy.

> o Registration and handling of interrupts (request_irq() support)

None.  The current idea is dino.c registers a region of 32 "virtual" IRQs (i.e.
Linux IRQ cookies, not EIRR bits) and uses do_irq_mask to handle them.  Also,
pcibios_fixup will put the right irq cookie numbers in the pci_devices list.

> o How drivers will use I/O port space accessor functions.
>   (assumes we won't change them to use MMIO space)

basically,

u8 inb(u32 address) {
	return pci_ops[(address>>16)].port.inb(
		pci_devs[(address>>16],
		(u8) (address>>16) / pci_rel_bus[(address>>16)],
		(u16) adress);
}

that looks slow but I hope for the "port accesses are slow anyway" argument
to win.

	Philipp Rumpf


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Subject: Re: [parisc-linux-cvs] grundler
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Xref: news.gmane.org gmane.linux.ports.parisc:9864

On Wed, Sep 01, 1999 at 05:02:23PM -0600, grundler@puffin.external.hp.com wrote:
> Update of /home/cvs/parisc/linux/drivers/gecko
> In directory puffin.external.hp.com:/tmp/cvs-serv4014/linux/drivers/gecko
> 
> Modified Files:
> 	dino.c 

okay, let's go through the changes here too:

 - strange STATIC define with a comment about "performance" kernels.

I don't see the point.  Is there one ?

 - use of irq_t all over the place

I don't mind this, but it really doesn't matter and just using int has the
advantage of still being able to printk it.

 - Dino-specific IRQ management

As far as I am concerned, there is no way I want to have 5 different IRQ
managements in the kernel.  It is not needed, the performance loss is minimal,
I don't see any other advantages to it.  (I just skipped that code so you don't
get all my complaints)

 - #if 0-ing out dino_walk_bus

remove it.  we really don't need any #if 0 bodies swimming around our trees.

 - check for potentially defect Dino chips

Nothing negative I can say about that

 - +** TODO: Dino needs a method to look at and possibly "claim" GSC devices.

it's what you #if 0-ed out. (
        struct gsc_dev *dev = gsc_devices;

	while(dev = dev->next) {
		if(is_dino(dev)) {
			blah blah 
		}
	}
).

 - split dino init into two parts

I don't see the point.

 - changes to dino_config_write_byte aso (renaming them in the process)

Is this for supporting more than one PCI bus via pci-to-pci bridges ?
looks unnecessary to me, but I really don't know


 - +** Performance is going to stink if drivers use I/O port instead
   +** of MMIO.

This is not Dino-specific.

 - use of readb aso instead of gsc_readb aso

gsc_readb is there for a reason.

	Philipp Rumpf


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> Modified Files:
> 	pci.c 

- removed support for more than one bus

we don't want that, do we ?

- don't see anything else


That's it for today, I promise.

	Philipp Rumpf


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From: Richard Muratti <rmurat@ibm.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP3000 928LX Support?
Date: Thu, 02 Sep 1999 22:16:39 +1000
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Thanks for the info guys.

Rick


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> I don't want to sound aggressive, but I really do not see the point in most
> of your changes.

I really didn't.  Honest.  Even if the rest of the mails seems to have suggested
so to about everyone who read them.

> the type of irqs is defined to be int (not unsigned int) in ABIs we cannot

APIs.  Sorry.  Second time today I mix them up.  (Actually, this one was the first
time).


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On Thu, Sep 02, 1999 at 11:08:31AM +0200, Philipp Rumpf wrote:
>  - use of readb aso instead of gsc_readb aso
> 
> gsc_readb is there for a reason.

Let me amplify on this a little.  As I understand it, Linus has decreed
that readb/writeb/(etc) shall work on busses which `look like PCI'.
All other busses (zorro, podule, sbus, ...) shall define their own
*_readb/writeb/...  functions.  People have proposed auto-detecting which
bus is being written to and doing the right thing, but Linus disagrees.
So that's why we have gsc_readb, because GSC looks insufficiently
like PCI.  Does this make sense?

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Philipp Rumpf wrote:
> > Modified Files:
> > 	pci.c 
> 
> - removed support for more than one bus

Not quite - removed support for more than one type of PCI bus adapter.
PA platforms only support one type of PCI bus adapter at a time.
We could link in more than on PCI bus driver but only one will
ever get used. (At least that's my goal).

> we don't want that, do we ?

Rather we don't need it.
If you want it you can have it. :^)

> That's it for today, I promise.

ditto.

thanks,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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So, I'm told there's a package called the Device Driver Toolkit (or
similiar) for PA RISC.  Inside it, there'd be a file called pa.h.  I
don't actually have this package, but would love to have access to this
file.

In the same way that we've legally copied .h files from HPUX into the
Linux kernel tree, I'd like include pa.h.

Is there someone out there who has a copy of this file (and perhaps
other associated .h files)?

I'm interested in this because I want to setup a hardware inventory
database properly.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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> Not quite - removed support for more than one type of PCI bus adapter.
> PA platforms only support one type of PCI bus adapter at a time.

Sorry ? Alex told me the exact opposite when I asked him and I relied on that.

So:  Are there parisc boxen with more than one type of interface to PCI-like
busses ? For example, can I take a Dino-on-a-card card and put it into a box
which does not use Dino as native-to-PCI bridge ?

	Philipp Rumpf


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Philipp Rumpf wrote:
> > Not quite - removed support for more than one type of PCI bus adapter.
> > PA platforms only support one type of PCI bus adapter at a time.
> 
> Sorry ? Alex told me the exact opposite when I asked him and I relied on that.

I don't *think* I ever said that, but if I did, I was wrong.

> So:  Are there parisc boxen with more than one type of interface to PCI-like
> busses ? For example, can I take a Dino-on-a-card card and put it into a box
> which does not use Dino as native-to-PCI bridge ?

And does the dino-on-a-card have it's own IODC on the card?

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Philipp Rumpf <prumpf@suse.de>
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Subject: Re: PCI-like busses
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> > So:  Are there parisc boxen with more than one type of interface to PCI-like
> > busses?
> 
> B/C/D class boxen haben PCI u. EISA (u. GSC) "slots".
> Since learning EISA/ISA busses are "PCI-like", the answer is "yes".

Of course, strictly speaking we could separate between pci busses (where we
have configuration space accesses) and isa-like busses (where we don't).  I
don't see any advantage.  For port accesses, we don't have to separate.

> And if this answer is right, then I'll put back the "multi-bus type"
> support in pci.h. I don't get how EISA would use these services
> (perhaps just the IRQ stuff?) but I'll trust you on that.

Remember I still want to remove the IRQ handling out of struct pci_bus_ops.

> Yes - but I'm only aware of K/T class "form factor" (shape/size).
> These won't normally fit in the A/B/C/D class boxes which also have

The Dino-on-a-card I have in the A180C is quite long, yes.

> (Next week I'll see if I can wedge the K-class one into a workstation
> anyway)

Don't destroy any hardware ;)


	Philipp Rumpf


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Philipp Rumpf wrote:
> > Not quite - removed support for more than one type of PCI bus adapter.
> > PA platforms only support one type of PCI bus adapter at a time.
> 
> Sorry ? Alex told me the exact opposite when I asked him and I relied on that
>   .

Ok.

> So:  Are there parisc boxen with more than one type of interface to PCI-like
> busses?

B/C/D class boxen haben PCI u. EISA (u. GSC) "slots".
Since learning EISA/ISA busses are "PCI-like", the answer is "yes".
And if this answer is right, then I'll put back the "multi-bus type"
support in pci.h. I don't get how EISA would use these services
(perhaps just the IRQ stuff?) but I'll trust you on that.

> For example, can I take a Dino-on-a-card card and put it into a box
> which does not use Dino as native-to-PCI bridge ?

Yes - but I'm only aware of K/T class "form factor" (shape/size).
These won't normally fit in the A/B/C/D class boxes which also have
GSC slots. Any other HP person know if any card-mode Dino's were
made for workstations?

(Next week I'll see if I can wedge the K-class one into a workstation
anyway)

grant


Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Alex deVries wrote:

> And does the dino-on-a-card have it's own IODC on the card?

No. Dino implements the PA I/O architected registers but no IODC.
I suspect the problem is it's really a bus converter and that
needs PDC support - IODC entry points don't apply to this.
Can anyone confirm this?

grant


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make[2]: Entering directory `/linux/linux/arch/parisc/lib'
gcc -D__KERNEL__ -I/linux/linux/include -D__ASSEMBLY__  -traditional -c milli.S -o milli.o
milli.S: Assembler messages:
milli.S:16: Error: Rest of line ignored. First ignored character valued 0xd.
milli.S:19: Error: Rest of line ignored. First ignored character valued 0xd.
milli.S:21: Error: Rest of line ignored. First ignored character valued 0xd.
...


I stripped the ^M characters out of the file and it compiles.
Could others explain how they got past this error message?
Could the gcc I'm using be the wrong one?

thanks,
grant


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From: LaMont Jones <lamont@security.hp.com>
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Subject: Re: [parisc-linux] Card-mode Dino
Date: Fri, 03 Sep 1999 20:19:07 -0600
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To: Grant Grundler <grundler@cup.hp.com>
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> > And does the dino-on-a-card have it's own IODC on the card?
> No. Dino implements the PA I/O architected registers but no IODC.
> I suspect the problem is it's really a bus converter and that
> needs PDC support - IODC entry points don't apply to this.
> Can anyone confirm this?

Can't confirm or deny, but it is possible (we've done it at least once)
to build a bus converter that does not require PDC help, just architecture
knowledge.

lamont


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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Subject: Re: [parisc-linux] milli.S and 0xd's
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Xref: news.gmane.org gmane.linux.ports.parisc:9878

On Fri, Sep 03, 1999 at 05:36:18PM -0700, Grant Grundler wrote:
> 
> make[2]: Entering directory `/linux/linux/arch/parisc/lib'
> gcc -D__KERNEL__ -I/linux/linux/include -D__ASSEMBLY__  -traditional -c milli.S -o milli.o
> milli.S: Assembler messages:
> milli.S:16: Error: Rest of line ignored. First ignored character valued 0xd.
> milli.S:19: Error: Rest of line ignored. First ignored character valued 0xd.
> milli.S:21: Error: Rest of line ignored. First ignored character valued 0xd.
> ...
> 
> 
> I stripped the ^M characters out of the file and it compiles.
> Could others explain how they got past this error message?
> Could the gcc I'm using be the wrong one?

I just did the exact same thing and didn't get this error.  You are correct
that the file has 0xd's in it... I wonder if it's which assembler your gcc
has found?  Try appending the `-v' flag to the end of the gcc line and see
what you get:

Reading specs from /opt/depot/egcs-puffin/lib/gcc-lib/hppa1.0-hp-hpux11.00/egcs-2.91.60/specs
gcc version egcs-2.91.60 19981201 (egcs-1.1.1 release)
 /opt/depot/egcs-puffin/lib/gcc-lib/hppa1.0-hp-hpux11.00/egcs-2.91.60/cpp -lang-asm -v -I/linux/linux/include -undef -$ -Dhppa -Dhp9000s800 -D__hp9000s800 -Dhp9k8 -DPWB -Dhpux -Dunix -D__hppa__ -D__hp9000s800__ -D__hp9000s800 -D__hp9k8__ -D__PWB__ -D__hpux__ -D__unix__ -D__hppa -D__hp9000s800 -D__hp9k8 -D__PWB -D__hpux -D__unix -Asystem(unix) -Asystem(hpux) -Acpu(hppa) -Amachine(hppa) -D__ASSEMBLER__ -traditional -D_HPUX_SOURCE -D_HIUX_SOURCE -D__KERNEL__ -D__ASSEMBLY__ milli.S /var/tmp/ccrVZimC.s
GNU CPP version egcs-2.91.60 19981201 (egcs-1.1.1 release) (hppa)
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include
 /opt/depot/egcs-puffin/hppa1.0-hp-hpux11.00/include
 /opt/depot/egcs-puffin/lib/gcc-lib/hppa1.0-hp-hpux11.00/egcs-2.91.60/include
 /usr/include
End of search list.
 as -o milli.o /var/tmp/ccrVZimC.s
bash-2.03$ which as
/export/willy/bin/as

(at some stage, someone needs to clean up all those default #defines.  But
not right now.)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


From - Thu Nov 08 21:16:00 2018
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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: [parisc-linux] ownership of parisc-kernel code
Date: Sat, 04 Sep 1999 14:50:53 -0400
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PA-RISC Linux development is going well, but some things have changed
from a few months ago.  We have more developers than ever before, and
because of that, it looks like some people are stepping on other
people's toes.

I think there's some areas in which the parisc-linux developers could do
a bit better, and a lot of it comes from the fact that there's no
understood boundaries of who owns what code.

So, I'm going to suggest that I implement the following plan.  If people
have objections or suggestions, I'd appreciate feedback in the next 24
hours.

What we'd do is document which people are owners of which chunk of the
parisc kernel code. In the end, those owners are ultimately responsible
for that chunk of code. 

How they handle incoming patches for those areas, or handle changes that
affect multiple areas is up to them. If they decide that they want to
read every little patch that goes through, great. If they want to assign
subsections to others, fine.  But they are responsible in the end.

Here's my suggested division:

Interruptions and Interrupts:  Philipp Rumpf
Virtual Memory:                Philipp Rumpf
Syscalls:                      Matthew Wilcox
IO Peripherals/inventory:      Alex deVries
Boot code:                     Helge Deller
Everything else:               Alex deVries


In the end, this division is up to me, and I'll be happy to re-assign
people, settle disputes (*sigh*), etc. So if you have a gripe about a
certain section owner not doing their job, I'm the second person you
should complain to.

There are some simple things I insist all developers abide to:

- ALL changes need to be documented properly in the CVS comments
- Significant changes discussed on the the parisc-linux mailing list
- All changes *MUST* compile and produce a bootable kernel for the
default
  configuration, unless there's prior warning[1]
- Be civil on the list.  Anyone who commits code does it because they
genuinely want parisc-linux to work, we're all in the same boat
together.

Also, another note about the mailing list: this list was intended to be
used by the developers, and there's no limit of technical depth. If you
want to mail patches, mail patches.  People who don't want this
forwarded to them will just have to deal with it.

[1] By prior warning, I mean a mail to the list that says something like
"I'm working on support for the XUAZ SCSI controller, this might break
XYZ800 support temporarily". Sometimes you need to take one step back to
go two forward.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Card-mode Dino
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LaMont Jones wrote:
> > > And does the dino-on-a-card have it's own IODC on the card?
> > No. Dino implements the PA I/O architected registers but no IODC.
> > I suspect the problem is it's really a bus converter and that
> > needs PDC support - IODC entry points don't apply to this.
> > Can anyone confirm this?
> 
> Can't confirm or deny, but it is possible (we've done it at least once)
> to build a bus converter that does not require PDC help, just architecture
> knowledge.

Let me add some depth to my suspicion.
Platform IO space (which Dino "translates" 1:1 to PCI MMIO space) is
assigned exclusively by PDC on platforms with GSC busses.  The OS can't
assign I/O space addresses to devices unless (a) knows where I/O space
is (could make assumptions about this), (b) exactly which parts
have been used by other bus converters or devices, and (c) which
parts are reserved for "special" devices (eg graphics)?

I suspect IODC can't provide this sort of functionality. Let me
rephrase my question: does anyone know if architected PDC interfaces
provide enough information to satisfy a/b/c above?

thanks,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Subject: Re: [parisc-linux] milli.S and 0xd's
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Matthew Wilcox wrote:
...
> I just did the exact same thing and didn't get this error.  You are correct
> that the file has 0xd's in it... I wonder if it's which assembler your gcc
> has found?

Yes. jackpot.  I'm picking up the "ninstall" tool set and not the set
distributed from puffin.external.hp.com.  Let's see how painful it is
to get the newer toolset working...

grundler <427>as --version
GNU assembler 2.8.1
...

>   Try appending the `-v' flag to the end of the gcc line and see
> what you get:

make[2]: Entering directory `/linux/linux/arch/parisc/lib'
gcc -D__KERNEL__ -I/linux/linux/include -D__ASSEMBLY__  -traditional -c -v milli.S -o milli.o
Reading specs from /opt/GNU/lib/gcc-lib/hppa1.1-hp-hpux10.20/2.8.1/specs
gcc version 2.8.1
...

vs.

> Reading specs from /opt/depot/egcs-puffin/lib/gcc-lib/hppa1.0-hp-hpux11.00/eg
>   cs-2.91.60/specs
> gcc version egcs-2.91.60 19981201 (egcs-1.1.1 release)

BTW, I noticed "hppa1.0-hp-hpux11.00". Has anyone verified "hpux10.2O"
gcc tools produce the same output as "hpux11.00" flavor tools?
(I know they "should" but wouldn't even think of betting on it.)

I have access to several idle 11.X machines and will take another
look at using them. I didn't consider using them before because they
didn't have 10.20 installed.

thanks Matthew,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] EIM register programming
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Philipp Rumpf wrote:
...
> > Of GSC devices I'm aware of, only Dino will support pcibios_fixup().
> > How would a GSC SCSI, LAN, or Graphics card driver program it's EIM
> > register?
> > (EIM is equivalent to Dino's IAR0/1 registers)
> 
> Not decided yet.

Ok.

> alloc_irq is flawed and right now I think
> 
> int gsc_request_irq(void *eim,
> 	void (*handler)(int, void *, struct pt_regs *),
> 	unsigned long irqflags,
> 	const char *devname,
> 	void *dev_id);
> 
> might be a good idea.  return value is the number of the IRQ you
> have so you can do:
> 
> 	irq = gsc_request_irq(&dino->hpa->iar0, dino_interrupt, ??, dino->name,
>    dino);
> 	if(irq < 0) {
> 		printk("%s: couldn't allocate IRQ\n" dino->name); 
> 		return irq;
> 	}
> 	printk("%s: allocated IRQ %d\n", dino->name, irq);
> 
> does that sound okay ?

I think it will work.
Does Dino need "irq_base" then? I guess it doesn't.

It's clear this only works for 32-bit "EIM" style devices.
It won't work for anything different and I don't really know
what's out there (graphics has a reputation for doing things
differently though I expect them to also use an EIM register.)

My general preference is to pass platform knowledge (CPU HPA/EIRR)
to the caller instead of passing device specific knowledge
(EIM address) to the service. The former lets one manage platform
knowledge as a resource (allocate/free model) and is ultimately
more flexible. The latter is OK too if the device knowledge is
for a "mature" architecture (eg PCI spec won't change much anymore).
And GSC certainly won't change anymore.

I guess what I was looking for were processor (vs bus) specific services.
The gsc_request_irq() would be a consumer of PA specific services
and I was thinking some drivers might want to directly use processor
services directly.

Other comments?

grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] drivers/video/Config.in patch
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This is a multi-part message in MIME format.
--------------F11139E0A376D7FCBF126122
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hello Hackers:

I've successfully booted my C200 with the Image-199900705 from
puffin.external.hp.com.  Now I am working on getting the cvs source to
compile so I can add to the project.

I haven't seen many patches posted to this list, so please let me know
if I didn't package the patch correctly. (I did a diff -c).

Just a small patch to get the make xconfig to work.

-Ryan


--------------F11139E0A376D7FCBF126122
Content-Type: text/plain; charset=us-ascii;
 name="Config.in.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="Config.in.patch"

*** drivers/video/Config.in.orig	Sun Sep  5 22:24:19 1999
--- drivers/video/Config.in	Sun Sep  5 22:22:22 1999
***************
*** 182,188 ****
  	   "$CONFIG_FB_VIRGE" = "m" -o "$CONFIG_FB_CYBER" = "m" -o \
  	   "$CONFIG_FB_VALKYRIE" = "m" -o "$CONFIG_FB_PLATINUM" = "m" -o \
             "$CONFIG_FB_IGA" = "m" -o "$CONFIG_FB_MATROX" = "m" -o \
!            "$CONFIG_FB_CT65550" = "m" -o "$CONFIG_FB_PM2" = "m" -o
             "$CONFIG_FB_HP700" = "m" ]; then
  	define_bool CONFIG_FBCON_CFB8 m
        fi
--- 182,188 ----
  	   "$CONFIG_FB_VIRGE" = "m" -o "$CONFIG_FB_CYBER" = "m" -o \
  	   "$CONFIG_FB_VALKYRIE" = "m" -o "$CONFIG_FB_PLATINUM" = "m" -o \
             "$CONFIG_FB_IGA" = "m" -o "$CONFIG_FB_MATROX" = "m" -o \
!            "$CONFIG_FB_CT65550" = "m" -o "$CONFIG_FB_PM2" = "m" -o \
             "$CONFIG_FB_HP700" = "m" ]; then
  	define_bool CONFIG_FBCON_CFB8 m
        fi

--------------F11139E0A376D7FCBF126122--


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Subject: [parisc-linux] ramdisk.bin?
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Hmm...

Ok, I got a stupid question :)

Where do I generate/find the ramdisk.bin that is a dependency for
ramdisk.c?

-Ryan
P.S I will eventually figure out how to compile this kernel .....




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On Sun, Sep 05, 1999 at 11:41:39PM -0600, Ryan Bradetich wrote:
> Hmm...
> 
> Ok, I got a stupid question :)
> 
> Where do I generate/find the ramdisk.bin that is a dependency for
> ramdisk.c?

You can either generate one yourself using the loop device under Linux
or just take the one we all use from

ftp://puffin.external.hp.com/pub/parisc/binaries/ramdisks/

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: [parisc-linux] status on 715/33
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I've got my 715/33 as far as panicing because it can't find `init'.
There's a couple of small changes (which Philipp has) to get it through
the perils of handling the timer interrupt.  After that, it will crash
in pci_init() if that's enabled (looks like dereferencing a null pointer
to me), so disable CONFIG_PCI.  I'll investigate further tomorrow.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: [parisc-linux] Linker question....
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Ok,

I've almost got the linux kernel to build on my linux box using the
cross-compiler rpms bits from puffin.external.hp.com.

I've  spent a good portion of the day searching the archives on how to
address this problem, and the theme I've discovered is the kernel needs
to be compiled/linked under HP-UX?

I just wanted to verify this assertion before I installed the tools on
the C200.

Thanks,
-Ryan


PS.  This is the error I get using the egcs cross-compiler.
------------------------------------

parisc-linux-ld -R 0xc0010000 -N -e stext arch/parisc/kernel/head.o
arch/parisc/kernel/init_task.o init/main.o init/version.o ramdisk.o\
 arch/parisc/kernel/kernel.o arch/parisc/mm/mm.o kernel/kernel.o mm/mm.o
fs/fs.o ipc/ipc.o \
 fs/filesystems.a \
 net/network.a \
 drivers/block/block.a drivers/char/char.a drivers/gecko/gecko.a
drivers/net/net.a drivers/pci/pci.a \
/home/rbrad/source/linux/arch/parisc/lib/lib.a
/home/rbrad/source/linux/lib/lib.a
/home/rbrad/source/linux/arch/parisc/lib/lib.a \
 -o vmlinux
arch/parisc/kernel/kernel.o: In function `pdc_add_valid':
arch/parisc/kernel/kernel.o($CODE$+0x26f8): undefined reference to
`$global$'
gmake: *** [vmlinux] Error 1
[rbrad@beavis linux]$



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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: [parisc-linux] Shifting to kernel 2.2.12
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There's a few reasons to go to a newer kernel version, so I spent the
last day working on shifting the kernel to 2.2.12, which was a very
large pain.

To ease the overall load on developers, I'm going to do merge up all the
patches as of Wednesday, Sept. 8 at midnight GMT.

Right now my kernel builds properly, boots and dies in ipl_c.c, but I'll
figure out why exactly.

Please, keep your changes to non-architecture specific portions to the
kernel to a minimum.  It makes merging difficult.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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  In message <37D4510D.B206030E@uswest.net>you write:
  > I've  spent a good portion of the day searching the archives on how to
  > address this problem, and the theme I've discovered is the kernel needs
  > to be compiled/linked under HP-UX?
That is correct.  There is no cross-linker support for the SOM format.  The
elf tools are in progress, but not ready for use.

jeff


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From: Frank Benke <frank.benke@student.uni-tuebingen.de>
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Subject: RE: THANK YOU for the Linuxdays (fwd)
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hello folks;

since you all seem to be interested in linux and are somehow related to
the comercial use of it, i strongly encourage you to sign the petition for
including the logical volume management in the linux kernel. linus
concidered lvm as NOT important and is not convinced that this include is
of common interest. this petition shall convince him otherwise.

the website is found at http://linux.msede.com/lvm .

if you have friends and colleagues, which might think positive about lvm,
please inform them and ask them to sign as well. logical volume management
is as important as filesystem-journaling and the entire lvm in its alpha
release runs quite well here at gis.

thanks for your attention

regards frank




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From: "Ross J. Reedstrom" <reedstrm@wallace.ece.rice.edu>
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In-Reply-To: <Pine.LNX.4.10.9909080952580.18299-100000@linux21.zdv.uni-tuebingen.de>; from Frank Benke on Wed, Sep 08, 1999 at 10:05:34AM +0200
Xref: news.gmane.org gmane.linux.ports.parisc:9891

Frank - 
Have you spent much time reading the linux-kernel mailing list? Linus is
usually little swayed by 'popular opinion' as to what features go into
the kernel. The principle criteria are that any new feature not hurt
other features, and that the quality of the code is good. This petition
drive reminds me of ~3 years ago, when some people following the GGI
(General Graphics Interface) project wanted to get the early alpha
code adopted into the mainstream kernel. In my opinion (and that of
many kernel list regulars) the 'campaign' _slowed_ acceptance, rather
than helping. In fact, the basic underlying architecture (a generic
framebuffer interface) came into the mainstream kernel from the ports
to architectures(SPARC, I seem to recall) that required it, and was
eventually adapted to the i386 architecture, as well.

So, I'm not convinced that a petition is going to help at all, and
might hurt. If Linus Torvalds has rejected the lvm patches based on 'I
don't think many people need this' (which is _not_ a usual criteria),
it might help a little, to let the developers of the LVM patches point
to as interest. But they should have download logs indicating a lot of
people grabbing the patches, which says the same thing, doesn't it? I'm
glad the patches work well for you. Be happy features like this can be
developed by third parties. Help the LVM developers create clean code
that patches in easily, and it'll end up in the kernel.

Ross

Ob.PA-RISC: Sorry my first post here is off topic. Perhaps I can
salvage that.  I've just aquired what I believe to be a HP9000 730/66
a.k.a. 'King Cobra' workstation. I haven't much time to play with it
right now, but I _will_ be following this list, and trying to get your
work up and running on it. Hopefully, this isn't too different from other
7XX machines. Anyone know of any 'gotcha's ? (Oh, and I have zero HP/UX
experience (all Irix and Linux background).


On Wed, Sep 08, 1999 at 10:05:34AM +0200, Frank Benke wrote:
> hello folks;
> 
> since you all seem to be interested in linux and are somehow related to
> the comercial use of it, i strongly encourage you to sign the petition for
> including the logical volume management in the linux kernel. linus
> concidered lvm as NOT important and is not convinced that this include is
> of common interest. this petition shall convince him otherwise.
> 
> the website is found at http://linux.msede.com/lvm .
> 
> if you have friends and colleagues, which might think positive about lvm,
> please inform them and ask them to sign as well. logical volume management
> is as important as filesystem-journaling and the entire lvm in its alpha
> release runs quite well here at gis.
> 
> thanks for your attention
> 
> regards frank
> 
> 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

-- 
Ross J. Reedstrom, Ph.D., <reedstrm@rice.edu> 
NSBRI Research Scientist/Programmer
Computer and Information Technology Institute
Rice University, 6100 S. Main St.,  Houston, TX 77005


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okok ... i shouldnt have posted that. sorry. i dared because i understood
up to now the status of the current discussion was, that the only point of
critics from linus is the lack of need (and so far the performance
decrease is no fair tradeoff). linus should not be forced to include
bad/incomplete/buggy code, he should only see that there are people who
see this need and who want to make this tradeoff. and besides, we work on
improvements. 

and ross, as far as i understood the model philosophy, your 730 should
behave like 720 or 735.

regards frank




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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:9893

On Wed, Sep 08, 1999 at 10:03:31AM -0500, Ross J. Reedstrom wrote:
> Ob.PA-RISC: Sorry my first post here is off topic. Perhaps I can
> salvage that.  I've just aquired what I believe to be a HP9000 730/66
> a.k.a. 'King Cobra' workstation. I haven't much time to play with it
> right now, but I _will_ be following this list, and trying to get your
> work up and running on it. Hopefully, this isn't too different from other
> 7XX machines. Anyone know of any 'gotcha's ? (Oh, and I have zero HP/UX
> experience (all Irix and Linux background).

Maybe this will be OK.  It's PA-RISC 1.1a, a PA7000 processor like the
705/710/720/750 rather than the PA7100LC as the 712/715/etc machines have.
We have docs on the 7100 and 7300 CPUs on the website, but no docs on
the 7000.  I suspect that getting documentation on this CPU will be
low-priority; even lower priority than the HIL keyboard driver :-)
So it may work, but don't be surprised if it doesn't.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Mike Hibler <mike@fast.cs.utah.edu>
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Subject: Re: THANK YOU for the Linuxdays (fwd)
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> Date: Wed, 8 Sep 1999 18:49:32 +0200
> From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
> To: "Ross J. Reedstrom" <reedstrm@wallace.ece.rice.edu>
> Subject: Re: THANK YOU for the Linuxdays (fwd)
> 
> On Wed, Sep 08, 1999 at 10:03:31AM -0500, Ross J. Reedstrom wrote:
> > Ob.PA-RISC: Sorry my first post here is off topic. Perhaps I can
> > salvage that.  I've just aquired what I believe to be a HP9000 730/66
> > a.k.a. 'King Cobra' workstation. I haven't much time to play with it
> > right now, but I _will_ be following this list, and trying to get your
> > work up and running on it. Hopefully, this isn't too different from other
> > 7XX machines. Anyone know of any 'gotcha's ? (Oh, and I have zero HP/UX
> > experience (all Irix and Linux background).
> 
> Maybe this will be OK.  It's PA-RISC 1.1a, a PA7000 processor like the
> 705/710/720/750 rather than the PA7100LC as the 712/715/etc machines have.
> We have docs on the 7100 and 7300 CPUs on the website, but no docs on
> the 7000.  I suspect that getting documentation on this CPU will be
> low-priority; even lower priority than the HIL keyboard driver :-)
> So it may work, but don't be surprised if it doesn't.
> 

Those original snakes have the ASP bus, which is quite similar to the LASI.
You can look at the Mach code for differences.  A couple of other differences
that might bite you: the snakes don't have HW TLB miss handling support,
the block TLBs have some funky restrictions, and they have the NCR53C700
SCSI controller which is a little quirky compared to the 53C710 in the later
machines.  But none of these are show-stoppers.


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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Finally ... Kernel Booted on C200
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Well I'm slowly learning .... :)

I finally figured out how to compile the cvs tree into a kernel that
I could boot on the C200.
These are the steps I followed, will someone verify if they are correct?

1. built the kernel using vmlinux,
2. built the ipl in arch/parisc/boot/boot_code
3. stripped ipl
4. mkImage ipl vmlinux vmlinux.boot
5 boot off of vmlinux.boot

At this point I get Tranfering control to kernel.  (At entry point
0x00010000)
The LED are also flashing in some patteren.

Well, time to start researching signals :)

-Ryan




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-----Original Message-----
From: Deller Helge (EXT-NEG/Dusseldorf) 
Sent: Donnerstag, 9. September 1999 9:17
To: 'EXT Ryan Bradetich'
Subject: RE: [parisc-linux] Finally ... Kernel Booted on C200



Yes, but it's really easy with two steps:

1. make vmlinux
2. make Image	(<- Here the ipl will be built & stripped, then ipl and
vmlinux will be added to the file "Image").
3. Boot the file arch/parisc/boot/Image from HDD or via network.


Helge Deller.


> -----Original Message-----
> From: EXT Ryan Bradetich [mailto:rbradetich@uswest.net]
> Sent: Donnerstag, 9. September 1999 5:33
> To: Parisc Linux
> Subject: [parisc-linux] Finally ... Kernel Booted on C200
> 
> 
> Well I'm slowly learning .... :)
> 
> I finally figured out how to compile the cvs tree into a kernel that
> I could boot on the C200.
> These are the steps I followed, will someone verify if they 
> are correct?
> 
> 1. built the kernel using vmlinux,
> 2. built the ipl in arch/parisc/boot/boot_code
> 3. stripped ipl
> 4. mkImage ipl vmlinux vmlinux.boot
> 5 boot off of vmlinux.boot
> 
> At this point I get Tranfering control to kernel.  (At entry point
> 0x00010000)
> The LED are also flashing in some patteren.
> 
> Well, time to start researching signals :)
> 
> -Ryan
> 
> 
> 
> --------------------------------------------------------------
> -------------
> To unsubscribe: send e-mail to 
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] Finally ... Kernel Booted on C200
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To: ext-helge.deller@nokia.com, Parisc Linux <parisc-linux@thepuffingroup.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:9897

Well I never claimed I was bright :)
Thanks for the hint/help.

I do have a question/patch for you though......

When I do a make mrproper, or make distclean, etc ... the
arch/parisc/boot/boot_code/cache.c file gets removed, and I have to
re-checkit out from cvs....  Is this supposed to happen?

I've attached a patch to remove the cache.c file from the clean in the
Makefile if this is a bug.....

Thanks again for hint/help!
-Ryan


ext-helge.deller@nokia.com wrote:

> Yes, but it's really easy with two steps:
>
> 1. make vmlinux
> 2. make Image   (<- Here the ipl will be built & stripped, then ipl and
> vmlinux will be added to the file "Image").
> 3. Boot the file arch/parisc/boot/Image from HDD or via network.
>
> Helge Deller.
>
> > -----Original Message-----
> > From: EXT Ryan Bradetich [mailto:rbradetich@uswest.net]
> > Sent: Donnerstag, 9. September 1999 5:33
> > To: Parisc Linux
> > Subject: [parisc-linux] Finally ... Kernel Booted on C200
> >
> >
> > Well I'm slowly learning .... :)
> >
> > I finally figured out how to compile the cvs tree into a kernel that
> > I could boot on the C200.
> > These are the steps I followed, will someone verify if they
> > are correct?
> >
> > 1. built the kernel using vmlinux,
> > 2. built the ipl in arch/parisc/boot/boot_code
> > 3. stripped ipl
> > 4. mkImage ipl vmlinux vmlinux.boot
> > 5 boot off of vmlinux.boot
> >
> > At this point I get Tranfering control to kernel.  (At entry point
> > 0x00010000)
> > The LED are also flashing in some patteren.
> >
> > Well, time to start researching signals :)
> >
> > -Ryan
> >
> >
> >
> > --------------------------------------------------------------
> > -------------
> > To unsubscribe: send e-mail to
> > parisc-linux-request@thepuffingroup.com with
> > `unsubscribe' as the subject.
> >


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] sched.models and HP-UX flavor
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Matthew Wilcox wrote:
...
> Well, according to /usr/sam/lib/mo/sched.models (a very useful file!)

This is the HP-UX 11.X location.
On 10.20, it's /usr/lib/sched.models.
(Agreed - a very useful file)

I think trying to build/link parisc-linux on 10.20 has been the
source of my problems. I have the impression binutils and egcs
configure scripts are targeted towards hpux11.00 host since
they use "elf" instead of "som" output format.
I'm moving to 11.00 host and see if that works better...

I'm not good at (mostly not interested) futzing around with build tools.
It would be a good thing if someone either fixed or intentionally broke
the parisc-linux configure scripts for hpux10.20 host.

cheers,
grant

ps. parisc/pci.[ch] and dino.c changes are coming along nicely.
   Most of the design issues are resolved though a few are still
   outstanding. It looks like I should be able to drop those
   in by next week after they are reviewed.

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] $global$ undefined?
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I'm getting "undefined reference to `$global$'" error when
linking. Is this a tools or source tree problem?

I'm inclined to think the former but don't know.

thanks,
grant

ps - this is now on an HP-UX 11.00 system.

grundler <438>type ld
ld is /linux/parisc-linux/bin/ld
grundler <439>ld --version
GNU ld 2.9.1
Copyright 1997 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License.  This program has absolutely no warranty.
  Supported emulations:
  hppaelf
grundler <440>type gcc
gcc is /linux/parisc-linux/bin/gcc
grundler <441>gcc --version
egcs-2.91.60
grundler <442>type as      
as is /linux/parisc-linux/bin/as
grundler <443>as --version
GNU assembler 2.9.1
Copyright 1997 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License.  This program has absolutely no warranty.
This assembler was configured for a target of `parisc-linux'.

grundler <444>make vmlinux
gcc -D__KERNEL__ -I/linux/linux/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -mdisable-fpregs -fwritable-strings  -pipe -fno-strength-reduce -DUTS_MACHINE='"parisc"' -c -o init/version.o init/version.c
.
.
.
ld -R 0xc0010000 -N -e stext arch/parisc/kernel/head.o arch/parisc/kernel/init_task.o init/main.o init/version.o ramdisk.o\
	arch/parisc/kernel/kernel.o arch/parisc/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o \
	fs/filesystems.a \
	net/network.a \
	drivers/block/block.a drivers/char/char.a drivers/gecko/gecko.a  drivers/net/net.a drivers/pci/pci.a \
	/linux/linux/arch/parisc/lib/lib.a /linux/linux/lib/lib.a /linux/linux/arch/parisc/lib/lib.a \
	-o vmlinux
arch/parisc/kernel/kernel.o: In function `pdc_add_valid':
arch/parisc/kernel/kernel.o($CODE$+0x26f8): undefined reference to `$global$'
make: *** [vmlinux] Error 1
grundler <445>


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Subject: Re: [parisc-linux] $global$ undefined?
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> grundler <438>type ld
> ld is /linux/parisc-linux/bin/ld
> grundler <439>ld --version
> GNU ld 2.9.1

Use the HP/UX ld.


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Philipp Rumpf wrote:
> > grundler <438>type ld
> > ld is /linux/parisc-linux/bin/ld
> > grundler <439>ld --version
> > GNU ld 2.9.1
> 
> Use the HP/UX ld.

Sorry - I forgot about that in my Nth attempt at setting
up the GNU cross-env tools.

Different problem now.

grundler <402>mv /linux/parisc-linux/bin/ld /linux/parisc-linux/bin/ld.orig
grundler <403>type ld
ld is /bin/ld
...
grundler <406>make vmlinux
...
ld -R 0xc0010000 -N -e stext arch/parisc/kernel/head.o arch/parisc/kernel/init_task.o init/main.o init/version.o ramdisk.o\
        arch/parisc/kernel/kernel.o arch/parisc/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o \
        fs/filesystems.a \
        net/network.a \
        drivers/block/block.a drivers/char/char.a drivers/gecko/gecko.a  drivers/net/net.a drivers/pci/pci.a \
        /linux/linux/arch/parisc/lib/lib.a /linux/linux/lib/lib.a /linux/linux/arch/parisc/lib/lib.a \
        -o vmlinux
ld: (Warning) Option "-N" ignored.  Non-shared text is not supported.
ld: Bad arch rev: 0
Fatal error.
make: *** [vmlinux] Error 1


Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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> Different problem now.

please file the object files to see whether they are ELF or SOM (they should
be all SOM).


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Philipp Rumpf wrote:
> > Different problem now.
> 
> please file the object files to see whether they are ELF or SOM (they should
> be all SOM).

grundler <407>file arch/parisc/kernel/head.o
arch/parisc/kernel/head.o:      ELF-32 relocatable object file - PA-RISC


Sigh...I thought the object files were supposed to be SOM until I saw the
following in the binutils/gas/configure:
      parisc-*-linux*)         fmt=elf em=linux ;;

Should I change this to "som"?

thanks again philipp,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Grant Grundler wrote:
...
> Sigh...I thought the object files were supposed to be SOM until I saw the
> following in the binutils/gas/configure:
>       parisc-*-linux*)         fmt=elf em=linux ;;
> 
> Should I change this to "som"?

I changed my local copy of configure as proposed above.
I removed /linux/parisc-linux/bin from my $PATH.
This doesn't build "out of the box" either...
Anyone have fixes for this not committed to the CVS tree?


grundler <429> ./configure --prefix=/linux --host=hppa1.1-hp-hpux11.00 --target=parisc-linux
grundler <430> make
...
cc -g -o as-new app.o as.o atof-generic.o bignum-copy.o cond.o depend.o ecoff.o ehopt.o expr.o flonum-copy.o flonum-konst.o flonum-mult.o frags.o hash.o input-file.o input-scrub.o listing.o literal.o macro.o messages.o output-file.o read.o sb.o stabs.o subsegs.o symbols.o write.o tc-hppa.o obj-som.o atof-ieee.o ../opcodes/.libs/libopcodes.a ../bfd/.libs/libbfd.a ../libiberty/libiberty.a
/usr/ccs/bin/ld: (Warning) At least one PA 2.0 object file (app.o) was detected. The linked output may not run on a PA 1.x system.
/usr/ccs/bin/ld: Unsatisfied symbols:
   bfd_som_set_subsection_attributes (code)
   bfd_som_set_section_attributes (code)
   hppa_som_gen_reloc_type (code)
   bfd_som_attach_aux_hdr (code)
   bfd_som_set_symbol_type (code)
make[1]: *** [as-new] Error 1
make[1]: Leaving directory `/linux/binutils/gas'
make: *** [all-gas] Error 2
grundler <431>


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
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Subject: [parisc-linux] boot problems on 715/33 with ramdisk.bin
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I have downloaded the kernel tree dated 19990813 from
ftp://puffin.external.hp.com/pub/parisc and added
ramdisk.bin to my top directory /usr/src/linux. After
a successful "make vmlinux" and "make Image" I tried
to boot the new kernel on my 715/33. The last boot
messages are:

Linux version 2.2.1 (root@be5359) (gcc version 2.8.1)
#1
 Mon Sep 13 17:51:40 METDST 1999
initrd: c0075000-c00cc800
urgh.

The bootloader starts with the messages:
Loading PA-RISC/Linux Kernel...
No ramdisks available.

What have I done wrong with the ramdisk support?

Also:
Booting via hpux does not seem to work anymore. I have
been on holidays the last 4 weeks, so I can't say when
this feature has disappeared. I also don't know, if
booting via hpux is still supported.

Ulrich
-------------------------------------------------------
Ulrich Strelow
<ulrich.strelow@schering.de or
ulrich_strelow@yahoo.com>
Berlin, Germany


__________________________________________________
Do You Yahoo!?
Bid and sell for free at http://auctions.yahoo.com


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Hello folks,

I also tried configuring for "--target=hppa1.1-hp-hpux10.20".
That results in the same symbols missing ("/usr/ccs/bin/ld:
Unsatisfied symbols:"...).  Any hints on what next?

TIA,
grant

ps. The actual line changed in gas/configure is the "hppa-*-linux" case
   of "${generic_target}" switch (case) statement.
   The "parisc-*-linux" case is dead code and can be removed since
   the switch is on $generic_target and not $target.

Grant Grundler wrote:
> Grant Grundler wrote:
> ...
> > Sigh...I thought the object files were supposed to be SOM until I saw the
> > following in the binutils/gas/configure:
> >       parisc-*-linux*)         fmt=elf em=linux ;;
> > 
> > Should I change this to "som"?
> 
> I changed my local copy of configure as proposed above.
> I removed /linux/parisc-linux/bin from my $PATH.
> This doesn't build "out of the box" either...
> Anyone have fixes for this not committed to the CVS tree?
> 
> 
> grundler <429> ./configure --prefix=/linux --host=hppa1.1-hp-hpux11.00 --targ
>   et=parisc-linux
> grundler <430> make
> ...
> cc -g -o as-new app.o as.o atof-generic.o bignum-copy.o cond.o depend.o ecoff
>   .o ehopt.o expr.o flonum-copy.o flonum-konst.o flonum-mult.o frags.o hash.o
>    input-file.o input-scrub.o listing.o literal.o macro.o messages.o output-f
>   ile.o read.o sb.o stabs.o subsegs.o symbols.o write.o tc-hppa.o obj-som.o a
>   tof-ieee.o ../opcodes/.libs/libopcodes.a ../bfd/.libs/libbfd.a ../libiberty
>   /libiberty.a
> /usr/ccs/bin/ld: (Warning) At least one PA 2.0 object file (app.o) was detect
>   ed. The linked output may not run on a PA 1.x system.
> /usr/ccs/bin/ld: Unsatisfied symbols:
>    bfd_som_set_subsection_attributes (code)
>    bfd_som_set_section_attributes (code)
>    hppa_som_gen_reloc_type (code)
>    bfd_som_attach_aux_hdr (code)
>    bfd_som_set_symbol_type (code)
> make[1]: *** [as-new] Error 1
> make[1]: Leaving directory `/linux/binutils/gas'
> make: *** [all-gas] Error 2
> grundler <431>
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Hi again,

Building "Image" but can't boot it via bootpd.
Here's what I've worked through so far...ideas?

My 715/100 (firmware 1.6, 64MB RAM, no disk) complains
	"ERROR: Cannot load IPL, error detected"

from either a 11.00 or 10.20 bootpd host.
"sea lan" at the target "BCH" (aka BOOT_ADMIN) shows both hosts.	
I think bootpd is configured "close enough" and the target
box is finding both bootpd servers and "Image" on each. I did
have a problem with public read permission on one host but
fixed that.

I downloaded Image-19990705 from the puffin.external.hp.com depot
and got the same result. So it's probably not a tools issue.  :^/
Building mkImage with "cc" might make a difference - but I doubt it.
I also doubt the mkImages changes I posted earlier today matter either.

"file Image" tells me Image is a lif file.
But "lifls" says it's not. The contradiction is a bit annoying.
Can someone cook the makefile to use lifinit/lifcp instead of mkImage.c?
I'm not sure it's possible but would be good if we could.

I'll try a different box (712/80) and see what that says.
I have a scratch disk on this box and could try dumping "Image"
to disk to see if it's a problem with how Image is built or
how the bootp server is transmitting data to the target.

Someone locally suggested UDP checksum had to be either on or off.
Anyone know about this (and if so, how to set/clear it appriopriately)?

The rest is just FYI.

grant


grundler <417>make Image
make -C arch/parisc/boot Image
make[1]: Entering directory `/linux/linux/arch/parisc/boot'
make[2]: Entering directory `/linux/linux/arch/parisc/boot/boot_code'
ld -nostdlib -N -H -R0x500000 ipl_s.o ipl_c.o rom_interface.o cache.o  -o ipl
ld: (Warning) Linker features were used that may not be supported in future releases. The +vallcompatwarnings option can be used to display more details, and the ld(1) man page contains additional information. This warning can be suppressed with the +vnocompatwarnings option.
strip ipl
make[2]: Leaving directory `/linux/linux/arch/parisc/boot/boot_code'
./mkImage boot_code/ipl ../../../vmlinux Image
Image 'Image' created.
Added IPL 'boot_code/ipl', 4084 pad bytes, checksum 0x098B99B2.
IPL will be relocated at run-time to 0x00500000.
Added Linux-SOM-Kernel '../../../vmlinux', 1060kB, entry-point at 0xC0010000.
Bootable Linux-Image 'Image' is ready to go !
chmod a+rw Image        # better change that in mkImage.c-source...
make[1]: Leaving directory `/linux/linux/arch/parisc/boot'

grundler <419>file /linux/linux/arch/parisc/boot/Image
/linux/linux/arch/parisc/boot/Image:    lif file
grundler <420>lifls /linux/linux/arch/parisc/boot/Image
lifls: Can't list /linux/linux/arch/parisc/boot/Image; not a LIF volume

[ 11.00 and 10.20 agree on this result - grant ]

grundler <421>tail /etc/bootptab
lego02b:\
        hd=/linux/linux/arch/parisc/boot:\
        bf=Image:\
        ba:bs:\
        vm=auto:\
        ht=ethernet:\
        ha=0800095F7A88:\
        sm=255.255.248.0:\
        ip=15.16.122.147
grundler <422>uname -a
HP-UX rock B.11.00 A 9000/800 2016163551 two-user license
grundler <423>model
9000/800/D390



Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Xref: news.gmane.org gmane.linux.ports.parisc:9908

> Building "Image" but can't boot it via bootpd.
> Here's what I've worked through so far...ideas?
> 
> My 715/100 (firmware 1.6, 64MB RAM, no disk) complains
> 	"ERROR: Cannot load IPL, error detected"

> from either a 11.00 or 10.20 bootpd host.
> "sea lan" at the target "BCH" (aka BOOT_ADMIN) shows both hosts.	
> I think bootpd is configured "close enough" and the target
> box is finding both bootpd servers and "Image" on each. I did
> have a problem with public read permission on one host but
> fixed that.

My guess is your bootpd / tftpd does not work properly.  Just as it might
help, here is my configuration:

/etc/bootptab:
puffin:ha=0010830329ee:ip=10.10.0.95:sm=255.255.0.0:bf=/tftpboot/kernel-puffin:td=/tftpboot/
herring:ha=08000987F208:ip=10.10.0.96:sm=255.255.0.0:bf=/tftpboot/kernel-herring:td=/tftpboot/

tftpd is started from inetd, inetd.conf line is:
tftp    dgram   udp     wait    nobody  /usr/sbin/tcpd  in.tftpd /tftpboot

$ tftp localhost
tftp> get kernel-puffin
Received 1039957 bytes in 1.2 seconds
tftp> get kernel-herring
Received 1039957 bytes in 1.1 seconds
tftp> 

# bootpd -d9
bootpd: info(6):   bootptab mtime: Thu Jul  8 16:27:42 1999
bootpd: info(6):   reading "/etc/bootptab"
bootpd: info(6):   read 2 entries (2 hosts) from "/etc/bootptab"
bootpd: info(6):   recvd pkt from IP addr 0.0.0.0
bootpd: info(6):   bootptab mtime: Thu Jul  8 16:27:42 1999
bootpd: info(6):   request from Ethernet address 00:10:83:03:29:EE
bootpd: info(6):   found 10.10.0.95 (puffin)
bootpd: info(6):   bootfile="/tftpboot/kernel-puffin"
bootpd: info(6):   vendor magic field is 99.130.83.99
bootpd: info(6):   sending reply (with RFC1048 options)
bootpd: info(6):   setarp 10.10.0.95 - 00:10:83:03:29:EE

I have no idea how to translate all that to HP/UX.

> grundler <421>tail /etc/bootptab
> lego02b:\
>         hd=/linux/linux/arch/parisc/boot:\
>         bf=Image:\

appropriate permissions on this ? is tftpd started with / as root (not
/tftpboot as usual) ?

	Philipp Rumpf


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Subject: Re: [parisc-linux] 715/100 bootpd fails
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Grant Grundler wrote:
...
> My 715/100 (firmware 1.6, 64MB RAM, no disk) complains
> 	"ERROR: Cannot load IPL, error detected"
...
> I'll try a different box (712/80) and see what that says.
> I have a scratch disk on this box and could try dumping "Image"
> to disk to see if it's a problem with how Image is built or
> how the bootp server is transmitting data to the target.

Looks like the latter though I don't like lifls complaining about it.

The 712/80 can load/run Image from disk but immediately dumps me back
into "BOOT_ADMIN" prompt when trying via the lan. I don't even
get an error messages - darn computer is probably just to fast for
me to read it....I'll switch to a serial console. Anybody wants
the console output for the 712/80, let me know.

grant


Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Subject: Re: [parisc-linux] 715/100 bootpd fails
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Philipp Rumpf wrote:

> My guess is your bootpd / tftpd does not work properly.  Just as it might
> help, here is my configuration:

Yup - that was right.

I got a call from another parisc-linux "lurker" and the
configuration for HP-UX is

/etc/inetd.conf:
tftp        dgram  udp wait   root /usr/lbin/tftpd    tftpd \
                /linux/linux/arch/parisc/boot \
                /home/tftpd
bootps      dgram  udp wait   root /usr/lbin/bootpd   bootpd -d3

[ the -d3 could be omitted ]

and /etc/bootptab:
lego02b:\
        hn:\
        sm=255.255.248.0:\
        vm=rfc1048:\
        ht=ether:\
        ha=0800095F7A88:\
        ip=15.16.122.147
        bf=/linux/linux/arch/parisc/boot/Image

We didn't specify "gw=xxx" since my host and target are on
the same subnet. Hope this helps others as well...

thanks again philip,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Subject: Re: [parisc-linux] 715/100 bootpd fails
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Sorry....typo was mine.

Grant Grundler wrote:
...
> and /etc/bootptab:
> lego02b:\
>         hn:\
>         sm=255.255.248.0:\
>         vm=rfc1048:\
>         ht=ether:\
>         ha=0800095F7A88:\
>         ip=15.16.122.147

wants ":\" appended or bootpd won't pick up the next line.

>         bf=/linux/linux/arch/parisc/boot/Image
> 
> We didn't specify "gw=xxx" since my host and target are on
> the same subnet. Hope this helps others as well...

grant


From - Thu Nov 08 21:16:03 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/100 data page fault and msg output
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Here's the output from the 715/100 followed by some comments:

...
mem_init 0xC01667E0 0xC1000000
mem_map c0116000
&_stext c0010000
&_data_start c0071000
start_mem c0167000
Memory: 14948k available (388k kernel code, 984k data, 64k init) [c0000000,c1000000]
here
here
here
here
here
here
here
here
here
here
VM test
c007640c c0013288 c0076000
POSIX conformance testing by UNIFIX
do_basic setup 2
do_basic setup 2
interrupted with code 15, regs c0076874
IAOQ: c0067c4c c0067c50
ISR: 00000000 IOR: c00167a8 IIR: 02a008b8
ior 00000004
sp c0076ac0
c0078000 c0078000
bad pgd 00000000 at c0078000
address 00000004 (vma)
vma 00000000
bad_area
bad address 00000004

PSW  : 0004000b  GR 1 : 00000000  GR 2 : 00014de8  GR 3 : c0079000  
GR 4 : c0079000  GR 5 : c010dd48  GR 6 : c00fe000  GR 7 : c0105800  
GR 8 : 00002000  GR 9 : 00000008  GR10 : c0015e84  GR11 : fc3ffe1f  
GR12 : 00000000  GR13 : 00000001  GR14 : 0000000a  GR15 : f0000704  
GR16 : f000b858  GR17 : 00000002  GR18 : 00000000  GR19 : c00eb92c  
GR20 : 0001aa03  GR21 : f0105800  GR22 : 00000000  GR23 : 00000060  
GR24 : f0105800  GR25 : 00000001  GR26 : c00ddc8c  GR27 : c0071000  
GR28 : 00000000  GR29 : 00000000  GR30 : 00000000  GR31 : c0017840  
SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000  
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  
IAOQ : c0067c4c c0067c50
SHR 1: 50000800  SHR 8: 00000008  SHR 9: c00d7000  SHR16: c0076874  
SHR17: 00000002  SHR24: f0105800  SHR25: 00000001  
Kernel panic: bad address

In swapper task - not syncing
================================================

I think this is a "Data Page Fault". The processor tried to
access an address which wasn't valid in the Page directory.
Couple of things in the trap handler would help here:
o More white space - makes what to cut/paste easier to determine
o clear text describing the fault
o In this case the offending instruction and a stack trace.
o printing the invalid address, IOAQ and general registers was good
o a message about please reset the machine to restart or something
  like that.

On a different note, the kernel prints lots of useful stuff along
with plenty of garbage. As a general rule, I would like to propose
folks use file name and line number instead of "here" and "Heya".
Remember we will be debugging stuff via other folks console output
quite a bit.

thanks,
grant

ps. Alex showed me the "la la la" work around in init_task.c.
   Is anyone already working to make this a runtime check?

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Subject: Re: [parisc-linux] 715/100 data page fault and msg output
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> bad address 00000004
> 
> PSW  : 0004000b  GR 1 : 00000000  GR 2 : 00014de8  GR 3 : c0079000  
> GR 4 : c0079000  GR 5 : c010dd48  GR 6 : c00fe000  GR 7 : c0105800  
> GR 8 : 00002000  GR 9 : 00000008  GR10 : c0015e84  GR11 : fc3ffe1f  
> GR12 : 00000000  GR13 : 00000001  GR14 : 0000000a  GR15 : f0000704  
> GR16 : f000b858  GR17 : 00000002  GR18 : 00000000  GR19 : c00eb92c  
> GR20 : 0001aa03  GR21 : f0105800  GR22 : 00000000  GR23 : 00000060  
> GR24 : f0105800  GR25 : 00000001  GR26 : c00ddc8c  GR27 : c0071000  
> GR28 : 00000000  GR29 : 00000000  GR30 : 00000000  GR31 : c0017840  
> SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000  
> SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  
> IAOQ : c0067c4c c0067c50
> SHR 1: 50000800  SHR 8: 00000008  SHR 9: c00d7000  SHR16: c0076874  
> SHR17: 00000002  SHR24: f0105800  SHR25: 00000001  
> Kernel panic: bad address
> 
> In swapper task - not syncing
> ================================================

This is a NULL pointer, and most probably a bug in the CVS tree that is
already fixed in my tree.  I will send a diff between the trees to the
list later.

> Couple of things in the trap handler would help here:
> o More white space - makes what to cut/paste easier to determine
> o clear text describing the fault
> o In this case the offending instruction and a stack trace.
> o printing the invalid address, IOAQ and general registers was good

basically look at what the x86 port does and implement it.

> On a different note, the kernel prints lots of useful stuff along
> with plenty of garbage. As a general rule, I would like to propose
> folks use file name and line number instead of "here" and "Heya".
> Remember we will be debugging stuff via other folks console output
> quite a bit.

Remember most of the messages will disappear soon (many of them as soon
as Alex finishes moving the tree to 2.2.12).  I do not intend to waste
my time changing anything outside of arch/parisc and include/asm-parisc
because that will mostly be replaced by the linus versions.

> ps. Alex showed me the "la la la" work around in init_task.c.
>    Is anyone already working to make this a runtime check?

you cannot.  not without major pain at least


	Philipp Rumpf


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From: LaMont Jones <lamont@security.hp.com>
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Subject: Re: [parisc-linux] 715/100 data page fault and msg output
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> IAOQ: c0067c4c c0067c50
> ISR: 00000000 IOR: c00167a8 IIR: 02a008b8
> ior 00000004
> o In this case the offending instruction and a stack trace.

Interestingly, IIR (the interupting instruction register) contains
mfctl   ior,arg2, which is not what we want...  Likewise IOR (as
opposed to ior) also looks suspect.  I would wager that someone is
not saving the I* registers correctly...

lamont


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From: Philipp Rumpf <prumpf@suse.de>
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Subject: Re: [parisc-linux] 715/100 data page fault and msg output
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> Interestingly, IIR (the interupting instruction register) contains
> mfctl   ior,arg2, which is not what we want...  Likewise IOR (as
> opposed to ior) also looks suspect.  I would wager that someone is
> not saving the I* registers correctly...

we don't save them at all, but directly read them.  Of course, printing them
doesn't make any sense (except for debugging the interruption code).

	Philipp Rumpf


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] 715/100 data page fault and msg output
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Philipp Rumpf wrote:

> This is a NULL pointer, and most probably a bug in the CVS tree that is
> already fixed in my tree.  I will send a diff between the trees to the
> list later.

Cool. Thanks!

> 
> > Couple of things in the trap handler would help here:
> > o More white space - makes what to cut/paste easier to determine
> > o clear text describing the fault
> > o In this case the offending instruction and a stack trace.
> > o printing the invalid address, IOAQ and general registers was good
> 
> basically look at what the x86 port does and implement it.

Ok - any volunteers?


...
> > ps. Alex showed me the "la la la" work around in init_task.c.
> >    Is anyone already working to make this a runtime check?
> 
> you cannot.  not without major pain at least

That didn't answer my question.

The right person might be able fix this without major pain.
I don't think I'm that person but I could look at it anyway
and then try to find the right person. Another OS doesn't have
this problem and obviously has solved it.

thanks,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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> > > Couple of things in the trap handler would help here:
> > > o More white space - makes what to cut/paste easier to determine
> > > o clear text describing the fault
> > > o In this case the offending instruction and a stack trace.
> > > o printing the invalid address, IOAQ and general registers was good
> > 
> > basically look at what the x86 port does and implement it.
> 
> Ok - any volunteers?

I am a low-priority volunteer, i.e. if noone else does it I'll do it anyway
one day.

> > > ps. Alex showed me the "la la la" work around in init_task.c.
> > >    Is anyone already working to make this a runtime check?
> > 
> > you cannot.  not without major pain at least
> 
> That didn't answer my question.
> 
> The right person might be able fix this without major pain.
> I don't think I'm that person but I could look at it anyway
> and then try to find the right person. Another OS doesn't have
> this problem and obviously has solved it.

 - we could fix our binutils and use elf instead of som.  we'll have to do
   so anyway at one point but it's a major piece of boring work

 - we could runtime-relocate init_task_union.  major pain because we would
   have to change assembly

 - we could reduce the size of task_struct and stack to 4 KB

 - we could change the way Linux allocates the kernel stack

 - we could detect at build time that init_task_union isn't aligned and work
   around it with makefile / ld magic.


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Subject: Re: [parisc-linux] 715/100 data page fault and msg output
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> > > ps. Alex showed me the "la la la" work around in init_task.c.
> > >    Is anyone already working to make this a runtime check?

Grant:

I'm working on getting the kernel to boot/load on a C200... would you mind
explaining the "la la la" work around in init_task.c so I'll know when I get
to that point?

Thanks,
-Ryan



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Subject: Re: [parisc-linux] 715/100 data page fault and msg output
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> we don't save them at all, but directly read them.  Of course, printing them
> doesn't make any sense (except for debugging the interruption code).

Reading them when PSW.Q=1 is undefined, and it sounds like that's where the
problem is coming from....  IIR should have had a load or store in it for
Grant's problem...  But that has to get stored before going virtual to
handle the trap...

lamont


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Grant Grundler wrote:

> Ryan Bradetich wrote:
> > I'm working on getting the kernel to boot/load on a C200...
>
> Ryan,
> C200+ has a PA-8200 processor (PA 2.0 Arch) and C200 had the previous
> PA 2.0 processor in it. Haven't you had problems since this port
> (to date) is focused on PA1.1 architecture?
>

Yep,  I have the C200+ with the PA-8200 processor, and yes ... I've been
having lots of problems with the port, but I'm slowly working through
them :)  Unfortunately, my parisc assembly/linux internals is really,
really weak, but this gives me a good chance to learn both.


>
> I'm certain PA2.0 will be supported in the future but not today.
> I don't want to discourage you but also don't want you to
> burn out trying to make this work...

Nah, I  probably won't get burned out, but will probably keep asking
quite a few questions as I continue to learn.

>
> grant
>
> Grant Grundler
> Communications Infrastructure Computer Operations
> +1.408.447.7253


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Subject: Re: [parisc-linux] 715/100 data page fault and msg output
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> > we don't save them at all, but directly read them.  Of course, printing them
> > doesn't make any sense (except for debugging the interruption code).
> 
> Reading them when PSW.Q=1 is undefined, and it sounds like that's where the
> problem is coming from....

erm.  yes, I know that.  Yes, I said it doesn't make any sense.

> IIR should have had a load or store in it for Grant's problem...

Grant's problem is most likely solved.  And no, there is no reason to save
IIR right now (there might be one when we have to find out whether a read or
write failed).

	Philipp Rumpf


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Subject: [parisc-linux] cvs [server aborted]: "commit" requires write access...
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Alex/et al,
I'm trying to submit the changes to build "som" format binaries
and I'm getting the error:

cvs [server aborted]: "commit" requires write access to the repository
cvs commit: saving log message in /tmp/cvsBAAa18719

Is the entire /home/cvs/parisc repository locked right now?
I checked rw permissions on the files and I have them.

I recall Alex sent a message about merging to 2.2.12. I don't
remember (but may have missed) mention that the repository
would be locked down and binutils was part of that.

I'm interested in committing:
CVS: Modified Files:
CVS:    binutils/gas/configure binutils/bfd/config.bfd
CVS:    binutils/ld/Makefile.in
CVS: ----------------------------------------------------------------------
Problem: tools use som support for as long as HP-UX linker is required.
Solution:
o gas/configure: for "hppa-*-linux" in "case ${generic_target}",
                 replace "fmt=elf" with "fmt=som"
o bfd/config.bfd: move parisc-linux target to "targ_defvec=som_vec" case
o ld/Makefile.in: disable "install" target for ld. Print msg instead.

thanks,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Subject: Re: [parisc-linux] 715/100 data page fault and msg output
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Philipp Rumpf wrote:
...
> > IIR should have had a load or store in it for Grant's problem...
> 
> Grant's problem is most likely solved.

When will I see a "likely solution"?

I'm still clueless to what is causing the data page fault and can't
make forward progress on Dino support.

(Hint: I have a card-mode Dino installed to exercise the basic code.)


thanks,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] exec_kernel help
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Hello hackers,

I've been struggling with this for the last couple of days, and I'm
stuck.  I can build a bootable image, but I can not get it to transfer
control to the kernel.  (I'm working on a C200+ which is a PA-8200
(PA-RISC 2.0) as Grant pointed out earlier).  I know the first targeted
build is for the PA 1.1, but I am willing and would like to get the
kernel working on the 2.0 also.

Here is the output on the console (I'm typing this in by hand)
---------------------------------------

PARISC/Linux Bootstrap Version 0.6 (non-interactive)
By Helge Deller & Jason Eckhardt
Built Fri Sep 17 01:05:03 MDT 1999 by rbrad@vega

Reading parameters...done.

Loading PA-RISC/Linux Kernel...
No ramdisks available.
SOM-Kernel:
aux_header_location: 00000080
som                  : 00200080
exec_dfile      : 0009E000
exec_dsize     : 0007C000
exec_dmem  : C007D000
exec_tfile       : 00031000
exec_tsize      : 0006C008
exec_tmem   :  C0010000
Code at 0x00010000, size=0x0006c008
Data at 0x0007D000, size=0x0007C000
BSS  at 0x00F9000

Transfering control to kernel. (At entry point 0x00010000)
-----------------------------------------------------

It hangs there and I have to reboot to continue.
I am booting using rbootd/tftpd if that makes any difference.

Any help/pointers would be appreciated :)

Thanks,
-Ryan



From - Thu Nov 08 21:16:03 2018
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Ryan Bradetich wrote:
> I'm working on getting the kernel to boot/load on a C200...

Ryan,
C200+ has a PA-8200 processor (PA 2.0 Arch) and C200 had the previous
PA 2.0 processor in it. Haven't you had problems since this port
(to date) is focused on PA1.1 architecture?

I'm certain PA2.0 will be supported in the future but not today.
I don't want to discourage you but also don't want you to
burn out trying to make this work...

grant


Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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> I've been struggling with this for the last couple of days, and I'm
> stuck.  I can build a bootable image, but I can not get it to transfer
> control to the kernel.  (I'm working on a C200+ which is a PA-8200
> (PA-RISC 2.0) as Grant pointed out earlier).  I know the first targeted
> build is for the PA 1.1, but I am willing and would like to get the
> kernel working on the 2.0 also.

It would be really nice to support PA2.0 in narrow mode.

> Here is the output on the console (I'm typing this in by hand)

Try to get a serial console set up.

> Transfering control to kernel. (At entry point 0x00010000)
> -----------------------------------------------------
> 
> It hangs there and I have to reboot to continue.

Can you access PIM and see if it got an HPMC ?

> Any help/pointers would be appreciated :)

okay, both head.S and our console (which is still called pdc_* though it
really is IODC) rely on pa1.1 firmware.  I am not sure this works on PA2.0
systems.

	Philipp Rumpf


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Philipp Rumpf wrote:
> Ryan Bradetich wrote:
...
> > Here is the output on the console (I'm typing this in by hand)
> 
> Try to get a serial console set up.

Definitely...reading owners manuals can reveal interesting "tricks".
Holding the "TOC" button (for about 10 seconds) on my 715 during
powerup will force the console to serial port 1.  The user doesn't
have to muck with setting paths for collecting linux kernel output.
Check if the C200+ has the same behavior - good chance it does.

...
> > Any help/pointers would be appreciated :)
> 
> okay, both head.S and our console (which is still called pdc_* though it
> really is IODC) rely on pa1.1 firmware.  I am not sure this works on PA2.0
> systems.

"Legacy" firmware (includes C200+, A180L, etc) run PDC/IODC in narrow mode.
I expect PDC calls to work the same. I think something else is different.
As Philipp suggested, check the PIM dump since it's the only info available.
Someone is looking at a PA debugger...

grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Grant Grundler wrote:

> Philipp Rumpf wrote:
> > Ryan Bradetich wrote:
> ...
> > > Here is the output on the console (I'm typing this in by hand)
> >
> > Try to get a serial console set up.
>
> Definitely...reading owners manuals can reveal interesting "tricks".
> Holding the "TOC" button (for about 10 seconds) on my 715 during
> powerup will force the console to serial port 1.  The user doesn't
> have to muck with setting paths for collecting linux kernel output.
> Check if the C200+ has the same behavior - good chance it does.
>

Found out how to do this in the users manual ... next question.  What is
everyone using for a serial console?  I have the HP A4576A monitor attached to
the C200+ right now, this monitor does not have a serial connection.  It has
the Enhanced Video Connector and the HD-15 (svga) monitor connections.   The
only serial device that I can think of is the web console, and I can get one
from work later this afternoon, if that will work.

> ...
> > > Any help/pointers would be appreciated :)
> >
> > okay, both head.S and our console (which is still called pdc_* though it
> > really is IODC) rely on pa1.1 firmware.  I am not sure this works on PA2.0
> > systems.

Will look in to these ... I've been focusing on init/main.c and
arch/parisc/boot/boot_code/ipl_[cs].[cS]

Let my outline my understanding of how the kernel gets loaded, and then will
someone please correct me if I'm wrong.

    1. The ipl is called by the PDC.  Execution starts in
arch/parisc/boot/boot_code/ipl_s.S.
    2. The ipl does some stuff then calls IPL_main().  (in
arch/parisc/boot/boot_code/ipl_c.c)
    3. IPL_main does some stuff/displays some values then calles exec_kernel.
(in arch/parisc/boot/boot_code/ipl_s.S)
    4. exec_kernel changes the program counter to the entry_point then does an
rfi. (entry point is 0x00010000)

    This is all the farther I've been able to trace/understand.  I was assuming
that the rfi throws us to start_kernel in init/main.c.
    Although after glancing at arch/parisc/kernel/head.S it looks like that
assumption might have been invalid.

> "Legacy" firmware (includes C200+, A180L, etc) run PDC/IODC in narrow mode.
> I expect PDC calls to work the same. I think something else is different.
> As Philipp suggested, check the PIM dump since it's the only info available.
>

Nothing in the PIM dump, though that was a great idea.... forgot all about
checking the PIM codes (duh...) :)

> Someone is looking at a PA debugger...

What do you mean by a PA debugger?

>
> grant
>
> Grant Grundler
> Communications Infrastructure Computer Operations
> +1.408.447.7253


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From: Philipp Rumpf <prumpf@suse.de>
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Subject: Re: [parisc-linux] exec_kernel help
Date: Sat, 18 Sep 1999 20:32:30 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:9929

> > Definitely...reading owners manuals can reveal interesting "tricks".
> > Holding the "TOC" button (for about 10 seconds) on my 715 during
> > powerup will force the console to serial port 1.  The user doesn't
> > have to muck with setting paths for collecting linux kernel output.
> > Check if the C200+ has the same behavior - good chance it does.

> Found out how to do this in the users manual ... next question.  What is
> everyone using for a serial console?  I have the HP A4576A monitor attached to
> the C200+ right now, this monitor does not have a serial connection.  It has
> the Enhanced Video Connector and the HD-15 (svga) monitor connections.   The
> only serial device that I can think of is the web console, and I can get one
> from work later this afternoon, if that will work.

I'd propose using a machine known to work, a null modem cable and a terminal
program.  That way you can copy and paste which is very handy sometimes.

>     1. The ipl is called by the PDC.  Execution starts in
> arch/parisc/boot/boot_code/ipl_s.S.
>     2. The ipl does some stuff then calls IPL_main().  (in
> arch/parisc/boot/boot_code/ipl_c.c)
>     3. IPL_main does some stuff/displays some values then calles exec_kernel.
> (in arch/parisc/boot/boot_code/ipl_s.S)
>     4. exec_kernel changes the program counter to the entry_point then does an
> rfi. (entry point is 0x00010000)

yup.

The entry point is in arch/parisc/kernel/head.S
head.S calls arch/parisc/kernel/setup.c (start_parisc)
setup.c does some initialization and calls init/main.c (start_kernel)


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From: "John Delisle" <jdelisle@novia.net>
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Subject: [parisc-linux] 2 new boxes I have..
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This is a multi-part message in MIME format.

------=_NextPart_000_001E_01BF0204.64F58540
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Hi,

I recently became the owner of two HP PA-RISC systems. =20

One is a HP 9000 800/H50 with 512MB ram, a SCSI/Console/LAN card, a MUX =
(40299B)

The other is a HP 9000 800/G40 with 256MB ram, a SCSI/Console/LAN card, =
a MUX (20499B), a 16 bit differential SCSI (28696-60001) card, and two =
SCSI/Parallel cards

Oh, and a SCSI cdrom.

Can someone tell me two things:

1) Can I make one run linux?

2) What are they worth? (Either as a whole or components..)

Thanks

John



------=_NextPart_000_001E_01BF0204.64F58540
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>

<META content=3Dtext/html;charset=3Diso-8859-1 =
http-equiv=3DContent-Type>
<META content=3D'"MSHTML 4.72.3612.1706"' name=3DGENERATOR>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT color=3D#000000 size=3D2>Hi,</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>I recently became the owner of two =
HP PA-RISC=20
systems.&nbsp; </FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>One is a HP 9000 800/H50 with 512MB =
ram, a=20
SCSI/Console/LAN card, a MUX (40299B)</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>The other is a HP 9000 800/G40 with 256MB ram, a=20
SCSI/Console/LAN card, a MUX (20499B), a 16 bit differential SCSI =
(28696-60001)=20
card, and two SCSI/Parallel cards</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Oh, and a SCSI cdrom.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Can someone tell me two things:</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>1) Can I make one run linux?</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>2) What are they worth? (Either as a whole or=20
components..)</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Thanks</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>John</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV></BODY></HTML>

------=_NextPart_000_001E_01BF0204.64F58540--


From - Thu Nov 08 21:16:04 2018
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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] exec_kernel help
Date: Sat, 18 Sep 1999 23:47:22 -0600
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Cc: Parisc Linux <parisc-linux@thepuffingroup.com>
To: Philipp Rumpf <prumpf@suse.de>
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Philipp Rumpf wrote:

> > I've been struggling with this for the last couple of days, and I'm
> > stuck.  I can build a bootable image, but I can not get it to transfer
> > control to the kernel.  (I'm working on a C200+ which is a PA-8200
> > (PA-RISC 2.0) as Grant pointed out earlier).  I know the first targeted
> > build is for the PA 1.1, but I am willing and would like to get the
> > kernel working on the 2.0 also.
>
> It would be really nice to support PA2.0 in narrow mode.
>
> > Here is the output on the console (I'm typing this in by hand)
>
> Try to get a serial console set up.

Finally after several hours I finally figured out how to setup the serial
console.  (BTW, don't put a null-modem adapter on a null-modem cable, it
doesn't work :()

Well the result is still the same ... It hangs after printing the message
"Transfering control to kernel. (At entry point 0x00010000).  So I'll start
diving into head.S and see if I can trace it from there.

>
> > Transfering control to kernel. (At entry point 0x00010000)
> > -----------------------------------------------------
> >
> > It hangs there and I have to reboot to continue.

> > Any help/pointers would be appreciated :)

>
> okay, both head.S and our console (which is still called pdc_* though it
> really is IODC) rely on pa1.1 firmware.  I am not sure this works on PA2.0
> systems.
>
>         Philipp Rumpf

I'll investigate this and see if I can track it down.  Thanks for the
pointers!

-Ryan



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Subject: Re: [parisc-linux] 2 new boxes I have..
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To: jdelisle@novia.net (John Delisle)
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Re:

> This is a multi-part message in MIME format.

(Yes, your message is improperly sent in both MIME-encoded ASCII
and HTML ... check your mail program preferences/options/whatever
and uncheck the "send as HTML" option ... save bandwidth, and be
*much* easier to read for users with older mail readers (like elm :))
 
> I recently became the owner of two HP PA-RISC systems. 

> One is a HP 9000 800/H50 with 512MB ram, a SCSI/Console/LAN card, a MUX =
> (40299B)
> 
> The other is a HP 9000 800/G40 with 256MB ram, a SCSI/Console/LAN card, =
> a MUX (20499B), a 16 bit differential SCSI (28696-60001) card, and two =
> SCSI/Parallel cards
> 
> 1) Can I make one run linux?

Well, this is the list to ask, certainly :)
 
> 2) What are they worth? (Either as a whole or components..)

STFW!   :)

Check www.ebay.com, search for "G40" and "H50".  For example,

http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=162760409
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=154656842

Clearly, search for other permutations: "HP 9000" "HP9000"  
"HP9000/G50" "HP 9000 G50", etc.

> <!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
> <HTML>
> <HEAD>
> <DIV><FONT color=3D#000000 size=3D2>Hi,</FONT></DIV>
> <DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
> <DIV><FONT color=3D#000000 size=3D2>I recently became the owner of two =
> HP PA-RISC=20
> systems.&nbsp; </FONT></DIV>
...

SS


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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Questions understanding exec_kernel
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Xref: news.gmane.org gmane.linux.ports.parisc:9933

Hello hackers:

I'm still trying to debug why I can load the kernel from exec_kernel (in
arch/parisc/boot/boot_code/ipl_s.S)


I've snipped the relevent section of code and have some questions
reguarding it.  (Pleae remember I'm, this is my first attempt with
PA-RISC, and I've been learning by reading the PA-RISC 1.1 Architecture
and Instruction Set Reference Manual, HP Assembler Reference Manual,
various comments throughout the code, and trial and error.)

/*
 *  exec_kernel(entry_point, &commandline, Kernel_FreeMemStart,
half_bss_size );
 *  exec_kernel() calls our kernel...
 */

 .EXPORT exec_kernel,code
 .PROC
 .CALLINFO
 .ENTRY
exec_kernel
 mtsm     %r0                 ; Disable traps and interrupts.

 mtctl    %r0,        %cr17   ; Clear two-level IIA Space Queue
 mtctl    %r0,        %cr17   ;    effectively setting kernel space.
 [Question: Page 5-149 from the PA-RISC 1.1 Architecture and Instruction
Set Reference Manual states: "Level 0:  If the target control register
is CR 8, 9, 12, 13, 17, or 20, this instructin executes as a null
instruction."  I am assuming we are running at level 0 since the rfi
command required running at level 0, so what is the difference between a
null instruction and a nop?]

 mtctl    %arg0,      %cr18   ; Stuff entry point into head of IIA
 ldo      4(%arg0),   %arg0   ;    Offset Queue, and entry point + 4
 mtctl    %arg0,      %cr18   ;    into tail of IIA Offset Queue.

 ldi      0x9,        %arg0   ; Set PSW Q & I bits (collect intrpt
 mtctl    %arg0,      %ipsw   ;    state, allow external intrpts).

 copy     %arg2,      %arg0   ; commandline to arg1
 [Note:  I think the comment is incorrect... we are actually copying the
Kernel_FreeMemStart into arg0 ... Am I missunderstanding the comment?]
                              ; arg3 is not changed..
 .EXIT
 rfi    ; begin execution of kernel.
 nop
 [Question: Page 5-139 from the PA-RISC 1.1 Architecture and Instruction
Set Reference Manual states: "Execution of an RFI instruction when any
of the PSW !, I, or R bits are ones is an undefined operation."  We are
explicitly setting the Q & I bits before calling the rfi command.  I
don't understand how this works ... ]
 .PROCEND

Thanks,
-Ryan



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Ryan Bradetich wrote:
>  [Question: Page 5-149 from the PA-RISC 1.1 Architecture and Instruction
> Set Reference Manual states: "Level 0:  If the target control register
> is CR 8, 9, 12, 13, 17, or 20, this instructin executes as a null
> instruction."  I am assuming we are running at level 0 since the rfi
> command required running at level 0, so what is the difference between a
> null instruction and a nop?]

That's an easy one:
Nullfied instructions are simple ignored - output discarded.
Branch  instructions have a "nullify" flag - the PA1.1 book
probably talks more about details here.

NOP is an instruction which is executed but does nothing useful.
(eg OR  R0, R0, R0) Often used to get precise timing in a loop
or patch out unwanted instructions for self modifing code.

Someone else will have to tackle the RFI question....

grant


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From: Hannu Martikka <martikka@stybba.ntc.nokia.com>
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Subject: [parisc-linux] C360 boot problem
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Hi!

I downloaded the latest kernel(+ramdisk) from CVS and tried it on my C360.
It does not print anything on screen but just blinks the leds. Here's what
it looks like:

Leds:	1234
	II
	I  I
	I I 
and then from the begining...

I guess it is trying to tell me something, but what?

- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


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From: Hannu Martikka <martikka@stybba.ntc.nokia.com>
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Subject: [parisc-linux] 715/80 problems
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Hei!


With 715/80 I get following:

Boot
:disk(....)/stand/vmlinux

GRs

0x00000000
...
	<bunch of HEX-values>
CRs

	<bunch of HEX-values>
SRs

	<bunch of HEX-values>
OTHER

	<bunch of HEX-values>

and then nothing...
It should be plain 715 but I have addon X.25 card on this machine (EISA?)

- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


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Subject: Re: [parisc-linux] Questions understanding exec_kernel
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>  .EXIT
>  rfi    ; begin execution of kernel.
>  nop
>  [Question: Page 5-139 from the PA-RISC 1.1 Architecture and Instruction
> Set Reference Manual states: "Execution of an RFI instruction when any
> of the PSW !, I, or R bits are ones is an undefined operation."  We are
> explicitly setting the Q & I bits before calling the rfi command.  I
> don't understand how this works ... ]
>  .PROCEND

    If I remember right, RFI followed by a NOP is an idiom to tell the CPU
  to start fetching instructions from an absolute address pointed to by the
  IVA so we usually want to that with interrupts enabled (Q & I bits set).

  --Hai 
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 


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Subject: Re: [parisc-linux] Questions understanding exec_kernel
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> /*
>  *  exec_kernel(entry_point, &commandline, Kernel_FreeMemStart,
> half_bss_size );
>  *  exec_kernel() calls our kernel...
>  */
> 
>  .EXPORT exec_kernel,code
>  .PROC
>  .CALLINFO
>  .ENTRY
> exec_kernel
>  mtsm     %r0                 ; Disable traps and interrupts.
> 
>  mtctl    %r0,        %cr17   ; Clear two-level IIA Space Queue
>  mtctl    %r0,        %cr17   ;    effectively setting kernel space.
>  [Question: Page 5-149 from the PA-RISC 1.1 Architecture and Instruction
> Set Reference Manual states: "Level 0:  If the target control register
> is CR 8, 9, 12, 13, 17, or 20, this instructin executes as a null
> instruction."  I am assuming we are running at level 0 since the rfi
> command required running at level 0, so what is the difference between a
> null instruction and a nop?]

Level 0 refers to the hardware here.  Level 0 hardware basically has no MMU,
so Linux will never run on it (does HP/UX ?)

>  copy     %arg2,      %arg0   ; commandline to arg1
>  [Note:  I think the comment is incorrect... we are actually copying the
> Kernel_FreeMemStart into arg0 ... Am I missunderstanding the comment?]

No, looks like the comment did not get changed when the instruction did.

>                               ; arg3 is not changed..
>  .EXIT
>  rfi    ; begin execution of kernel.
>  nop
>  [Question: Page 5-139 from the PA-RISC 1.1 Architecture and Instruction
> Set Reference Manual states: "Execution of an RFI instruction when any
> of the PSW !, I, or R bits are ones is an undefined operation."  We are
> explicitly setting the Q & I bits before calling the rfi command.  I
> don't understand how this works ... ]

We did execute mtsm 0 which sets the system mask (which includes the Q, I and
R bits) to 0.

	Philipp Rumpf


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> >  [Question: Page 5-149 from the PA-RISC 1.1 Architecture and Instruction
> > Set Reference Manual states: "Level 0:  If the target control register
> > is CR 8, 9, 12, 13, 17, or 20, this instructin executes as a null
> > instruction."  I am assuming we are running at level 0 since the rfi
> > command required running at level 0, so what is the difference between a
> > null instruction and a nop?]

There is none.  Null instructions (here) refer to instructions ignored since
they don't apply to the specific hardware.  Nops are usually regular forms of
arithmetic / logical instructions that happen to do nothing.

> That's an easy one:
> Nullfied instructions are simple ignored - output discarded.

Except we're not talking about nullified instructions :)

	Philipp Rumpf


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In-Reply-To: <Pine.HPX.4.05.9909220937120.2148-100000@gamgee.ntc.nokia.com>; from Hannu Martikka on Wed, Sep 22, 1999 at 09:45:51AM +0300
Xref: news.gmane.org gmane.linux.ports.parisc:9940

> I downloaded the latest kernel(+ramdisk) from CVS and tried it on my C360.
> It does not print anything on screen but just blinks the leds. Here's what
> it looks like:
> 
> Leds:	1234
> 	II
> 	I  I
> 	I I 
> and then from the begining...
> 
> I guess it is trying to tell me something, but what?

Can you try to get the PIM contents and search for the symbols closest to
IAOQ / CR18 in your System.map ?

	Philipp Rumpf


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From: Philipp Rumpf <prumpf@suse.de>
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Subject: Re: [parisc-linux] 715/80 problems
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Xref: news.gmane.org gmane.linux.ports.parisc:9941

> With 715/80 I get following:
> Boot
> :disk(....)/stand/vmlinux

you might want to try to boot via tftp / bootp as this is what most of us do
and it seems to work for us.

	Philipp Rumpf


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>     If I remember right, RFI followed by a NOP is an idiom to tell the CPU
>   to start fetching instructions from an absolute address pointed to by the
>   IVA so we usually want to that with interrupts enabled (Q & I bits set).

Are you sure ?  It never did that on the machines I tested on so far (712,
A180C and indirectly 715).

	Philipp Rumpf


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] 715/80 problems
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Xref: news.gmane.org gmane.linux.ports.parisc:9943

Hannu Martikka wrote:
> Hei!
> 
> 
> With 715/80 I get following:
> 
> Boot
> :disk(....)/stand/vmlinux
> 

Hannu/Goodi,
You didn't get any messages about a bad address here?

Dumping the GRs/CRs/SRs suggests a SW fault which can't be
handled...but the linux kernel needs to learn how to dump
more useful information.

BTW, those "<bunch of HEX-values>" mean something to various
people on the list. If you can collect (and post) all output
via serial console starting with the "Boot" message, others
on this list might be able to help.

> GRs
> 
> 0x00000000
> ...
> 	<bunch of HEX-values>
> CRs
> 
> 	<bunch of HEX-values>
> SRs
> 
> 	<bunch of HEX-values>
> OTHER
> 
> 	<bunch of HEX-values>
> 
> and then nothing...
> It should be plain 715 but I have addon X.25 card on this machine (EISA?)

I think the EISA is ignored for now...

grant

> 
> - Goodi
> "The linuX Files -- The Source is Out There."
> ,,`,,`,,`,,``,,
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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On Wed, 22 Sep 1999, Philipp Rumpf wrote:

> > With 715/80 I get following:
> > Boot
> > :disk(....)/stand/vmlinux
> 
> you might want to try to boot via tftp / bootp as this is what most of us do
> and it seems to work for us.
What's the difference? I mean why should it be different?
I guess tftp/bootp uses the Image (make Image) and IPL can use vmlinux
(make vmlinux) kernel.

> 	Philipp Rumpf
- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


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Xref: news.gmane.org gmane.linux.ports.parisc:9945

> What's the difference? I mean why should it be different?
> I guess tftp/bootp uses the Image (make Image) and IPL can use vmlinux
> (make vmlinux) kernel.

It can't (or at least I don't know it can).  The kernel image has to be
loaded by a boot loader, and there is reason to believe it has to be our
boot loader.

 	Philipp Rumpf


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Philipp Rumpf wrote:
> Hannu Martikka wrote:
> > With 715/80 I get following:
> > Boot
> > :disk(....)/stand/vmlinux
> 
> you might want to try to boot via tftp / bootp as this is what most of us do
> and it seems to work for us.

Goodi,
Are you using HP-UX boot loader?

To boot from disk, one should do "make Image" and dd the Image to disk.
This will trash the HP-UX file system so only do this on a spare disk!
The loader used is then from the parisc-linux source tree.

grant


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On Wed, 22 Sep 1999, Grant Grundler wrote:

> Hannu Martikka wrote:
> > Hei!
> > With 715/80 I get following:
> > 
> > Boot
> > :disk(....)/stand/vmlinux
> > 
> 
> Hannu/Goodi,
> You didn't get any messages about a bad address here?
Nope. First thing that showed up was "GRs".

> Dumping the GRs/CRs/SRs suggests a SW fault which can't be
> handled...but the linux kernel needs to learn how to dump
> more useful information.
> 
> BTW, those "<bunch of HEX-values>" mean something to various
> people on the list. If you can collect (and post) all output
> via serial console starting with the "Boot" message, others
> on this list might be able to help.
I was using the IPL/HPUX loader to start kernel. Are you still interested?
It now works with tftp/bootp.

> Grant Grundler
> Communications Infrastructure Computer Operations
> +1.408.447.7253
- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,


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On Wed, 22 Sep 1999, Grant Grundler wrote:

> Philipp Rumpf wrote:
> > Hannu Martikka wrote:
> > > With 715/80 I get following:
> > > Boot
> > > :disk(....)/stand/vmlinux
> > 
> > you might want to try to boot via tftp / bootp as this is what most of us do
> > and it seems to work for us.
> 
> Goodi,
> Are you using HP-UX boot loader?
I was... It used to work (at the time when kernel didn't... :)

> To boot from disk, one should do "make Image" and dd the Image to disk.
> This will trash the HP-UX file system so only do this on a spare disk!
> The loader used is then from the parisc-linux source tree.
I setup the tftp/bootp server and now I can boot my 715/80 from lan.
Last thing it says is "urgh" and then it stays in for(;;). I cannot say
wether that is good or bad :)

> grant
- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,



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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: [parisc-linux] 715/80 problems
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Philipp Rumpf wrote:
> 
> > With 715/80 I get following:
> > Boot
> > :disk(....)/stand/vmlinux
> 
> you might want to try to boot via tftp / bootp as this is what most of us do
> and it seems to work for us.

There's definitely a problem with booting off of a disk, and I'm not
sure what the problem really is.  It'd be great if someone could look
into this, I know we're not implementing the entire LIF header.

Has *anyone* been able to boot from disk?

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Sorry I sent this reply to Philipp while I meant to send it to the list.

Inthe mean time I saw Alex mail, so its sounds more like a regression
than a new desgin orientation.

Correct me if I'm wrong.
Phi

--
mailto:Philippe_Benard@hp.com
Technical Consulting Lab
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Subject: Re: [parisc-linux] 715/80 problems
References: <199909162158.OAA21289@milano.cup.hp.com> <Pine.HPX.4.05.9909221438440.2148-100000@gamgee.ntc.nokia.com> <19990922153509.B5481@suse.de>
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Philipp Rumpf wrote:
> 
> > With 715/80 I get following:
> > Boot
> > :disk(....)/stand/vmlinux
> 
> you might want to try to boot via tftp / bootp as this is what most of us do
> and it seems to work for us.
> 

I'm single node oriented for now, I use to setup my disc so I could have
all in 1, i.e a LIF area, an HFS with the development system on it, an
EXT2 area (for the future), a swap area for linux, I don't plan to boo
HP-UX on this one.

With the regression that occured after 14 september  1999, or so (20
septembre is wrong, 14 setp is good), I can't use it anymore.

I'm think about a newfs to regain the full HFS capacity unless one of
you can tell me this will be put back as it was before. For now I assume
the vmlinux is not supposed to boot from isl> hpux right?

Phi

--
mailto:Philippe_Benard@hp.com
Technical Consulting Lab

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Subject: Re: [Fwd: [parisc-linux] 715/80 problems]
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phi@tcleur.france.hp.com wrote:
> 
> With the regression that occured after 14 september  1999, or so (20
> septembre is wrong, 14 setp is good), I can't use it anymore.
> 
> I'm think about a newfs to regain the full HFS capacity unless one of
> you can tell me this will be put back as it was before. For now I assume
> the vmlinux is not supposed to boot from isl> hpux right?

It's *supposed to* work, but it doesn't.

Ah, okay.  This means that we should just be able to see what changed on
Sept. 14 and figure out what to fix.

Is anyone interested in fixing this?

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: John Delisle <jdelisle@oasis.novia.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Will it run Linux??
Date: Wed, 22 Sep 1999 12:50:49 -0500 (CDT)
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Hi,


I run many linux servers from my company and at home.  We have an HP 9000
800/H50 and an 800/G40.  Can I run linux on it?  If so, is there a
FAQ/howto or something? Where do I get it?

I'd really rather run linux than hpux.

John



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Subject: RE:[parisc-linux] Questions understanding exec_kernel
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> /*
>  *  exec_kernel(entry_point, &commandline, Kernel_FreeMemStart,
> half_bss_size );
>  *  exec_kernel() calls our kernel...
>  */
> 
>  .EXPORT exec_kernel,code
>  .PROC
>  .CALLINFO
>  .ENTRY
> exec_kernel
>  mtsm     %r0                 ; Disable traps and interrupts.
> 
>  mtctl    %r0,        %cr17   ; Clear two-level IIA Space Queue
>  mtctl    %r0,        %cr17   ;    effectively setting kernel space.
>
>  [Question: Page 5-149 from the PA-RISC 1.1 Architecture and Instruction
> Set Reference Manual states: "Level 0:  If the target control register
> is CR 8, 9, 12, 13, 17, or 20, this instructin executes as a null
> instruction."  I am assuming we are running at level 0 since the rfi
> command required running at level 0, so what is the difference between a
> null instruction and a nop?]

You are not "running" at level 0.  Levels are a description of what
capabilities are implemented in a processor.  The levels are described
on p. 2-4 of the second edition of the PA-RISC 1.1 ..., in the paragraph
titled "Levels of PA-RISC" (I assume you have the first edition because
my page numbers don't match yours).

Therefore, the RFI instruction doesn't require "running at level 0".



> mtctl    %arg0,      %cr18   ; Stuff entry point into head of IIA
>  ldo      4(%arg0),   %arg0   ;    Offset Queue, and entry point + 4
>  mtctl    %arg0,      %cr18   ;    into tail of IIA Offset Queue.
> 
>  ldi      0x9,        %arg0   ; Set PSW Q & I bits (collect intrpt
>  mtctl    %arg0,      %ipsw   ;    state, allow external intrpts).
> 
>  copy     %arg2,      %arg0   ; commandline to arg1
>  [Note:  I think the comment is incorrect... we are actually copying the
> Kernel_FreeMemStart into arg0 ... Am I missunderstanding the comment?]
>                               ; arg3 is not changed..
>  .EXIT
>  rfi    ; begin execution of kernel.
>  nop
>  [Question: Page 5-139 from the PA-RISC 1.1 Architecture and Instruction
> Set Reference Manual states: "Execution of an RFI instruction when any
> of the PSW !, I, or R bits are ones is an undefined operation."  We are
> explicitly setting the Q & I bits before calling the rfi command.  I
> don't understand how this works ... ]
>  .PROCEND
> 
> Thanks,
> -Ryan

I don't have the define of %ipsw (I don't have the source in front of me),
but I assume that is defined to be control register 22, the IPSW.  The
value of the PSW is saved in the PSW whan an interrupt occurs.  Then,
when returning from the interrupt via the RFI instruction, the value of
the IPSW is copied to the PSW.  So if you put a value into the IPSW
then issue the RFI instruction, you set the value of the PSW via the
RFI instrution.  (Look at the "Operation" section for the RFI instruction,
p. 5-138 in the second edition, for more details.)


Then from another email:
>     If I remember right, RFI followed by a NOP is an idiom to tell the CPU
>   to start fetching instructions from an absolute address pointed to by the
>   IVA so we usually want to that with interrupts enabled (Q & I bits set).

The RFI updates the program counter queues from IIAOQ_Back, IIAOQ_Front,
IISQ_Back, and IISQ_Front (these are control registers).  In other words,
the result of the RFI instruction is a branch to the address in
IIASQ_Front.IIAOQ_Front.


-Frank Rowand



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Alex:

The following directories seem to be missing from the CVS repository:

drivers/isdn/eicon
drivers/isdn/divert
drivers/usb
fs/efs
net/irda

-Ryan



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From: Grant Grundler <grundler@cup.hp.com>
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Ryan Bradetich wrote:
> Alex:
> 
> The following directories seem to be missing from the CVS repository:
> 
> drivers/isdn/eicon
> drivers/isdn/divert
> drivers/usb
> fs/efs
> net/irda

Yeah...I complained to Alex about this yesterday already.
And guess what? He fixed it! (kudos!)
You should try again...

I did a checkout, make config (for 715), make dep.
(make vmlinux is still running)

gcc is used to build scripts/mkdep, scripts/split-include and bin2hex.
The only thing I'm missing is native "gcc".  I don't have a native
"gcc" since I don't want to be confused about what's native and
what's cross-environment. So I built those items by hand with "cc".

Oh yeah...don't forget to ftp the ramdisk.bin if you start from
scratch like I did.

cheers,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Grant Grundler wrote:
...
> I did a checkout, make config (for 715), make dep.
> (make vmlinux is still running)

vmlinux built shortly after I posted...


> gcc is used to build scripts/mkdep, scripts/split-include and bin2hex.

Add one more to the list: arch/parisc/boot/mkImage

And on this one "cc" gets picky about pointer math.
Here's my diff for mkImage.c:

118c118
<     *entry_point = *(unsigned long*)(ptr + 6*sizeof(long));
---
>     *entry_point = *(unsigned long*)((char *)ptr + 6*sizeof(long));
131,132c131,132
<     short magic = *(short *)(ptr+sizeof(short));
<     long *arr         = (unsigned long *)ptr;
---
>     short magic = *(short *)((char *)ptr+sizeof(short));
>     long *arr         = (long *)ptr;

Any objections to committing this change?


On second thought, both changes should be written as:

	*entry_point = ((unsigned long *)ptr)[6];
and	
	short magic = ((short *)ptr)[1];


thanks,
grant


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From: LaMont Jones <lamont@security.hp.com>
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Subject: Re: [parisc-linux] Missing directories from CVS
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> And on this one "cc" gets picky about pointer math.
> Here's my diff for mkImage.c:

> <     *entry_point = *(unsigned long*)(ptr + 6*sizeof(long));
> ---
> >     *entry_point = *(unsigned long*)((char *)ptr + 6*sizeof(long));
OK, so I'm too lazy to go look...  what type is ptr?  I'd guess that
it's declared void*, since that's the only way the pointer math could
work in gcc and not in HP-cc.

> Any objections to committing this change?
> On second thought, both changes should be written as:
> 	*entry_point = ((unsigned long *)ptr)[6];
> and	
> 	short magic = ((short *)ptr)[1];
How about just using filehdr.h, or copying struct header from it, and
using the real structure...?  (I think we've released the format enough
that we could clone the structure, failing that:

  struct header {
	unsigned short magic;
	short fill0;
	long fill[5];
	unsigned long entry_point;
  };
will fit the bill quite nicely.

LaMont "I hate magic offsets" Jones


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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Subject: Re: [parisc-linux] Missing directories from CVS
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Am Thu, 23 Sep 1999 schrieb LaMont Jones:
> > And on this one "cc" gets picky about pointer math.
> > Here's my diff for mkImage.c:
> 
> > <     *entry_point = *(unsigned long*)(ptr + 6*sizeof(long));
> > ---
> > >     *entry_point = *(unsigned long*)((char *)ptr + 6*sizeof(long));
> OK, so I'm too lazy to go look...  what type is ptr?  I'd guess that
> it's declared void*, since that's the only way the pointer math could
> work in gcc and not in HP-cc.

Yes.

> 
> > Any objections to committing this change?
> > On second thought, both changes should be written as:
> > 	*entry_point = ((unsigned long *)ptr)[6];
> > and	
> > 	short magic = ((short *)ptr)[1];
> How about just using filehdr.h, or copying struct header from it, and
> using the real structure...?  (I think we've released the format enough
> that we could clone the structure, failing that:
> 
>   struct header {
> 	unsigned short magic;
> 	short fill0;
> 	long fill[5];
> 	unsigned long entry_point;
>   };
> will fit the bill quite nicely.

Yes, I think this would be the best solution. When I wrote the program, I tried
to include the header-files som.h and elf.h, but then I always got
different errors from every of the arch-compilers (iA32 or hpux).  So maybe it
is best to use the structure as above and write the structure-layout directly
into the source.  
Does someone want to fill it in and commit it ?

> 
> LaMont "I hate magic offsets" Jones
Helge "master of bad pointer arithmetic" Deller :-)


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Subject: Re: [parisc-linux] 715/80 problems
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Cc: parisc-linux@thepuffingroup.com
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Am Wed, 22 Sep 1999 schrieb Alex deVries:
> phi@tcleur.france.hp.com wrote:
> > 
> > With the regression that occured after 14 september  1999, or so (20
> > septembre is wrong, 14 setp is good), I can't use it anymore.
> > 
> > I'm think about a newfs to regain the full HFS capacity unless one of
> > you can tell me this will be put back as it was before. For now I assume
> > the vmlinux is not supposed to boot from isl> hpux right?
> 
> It's *supposed to* work, but it doesn't.
> 
> Ah, okay.  This means that we should just be able to see what changed on
> Sept. 14 and figure out what to fix.
> 
> Is anyone interested in fixing this?

Hi Philippe,
Hi Alex.

Im not really sure, but maybe I know why it doesnt boot any longer.
Phi, could you look in the file arch/parisc/Makefile in the section
LDFLAGS=-R<yyy>  if your working version has <yyy> as 0x10000 and your
non-working version has 0xC0010000. If yes, then it shows that the
hpux-bootloader isnt able to load our kernel into the virtual space at
0xC0000000 and directly stops [segfaults?] without any message. One possible
solution could be, to patch the contents of the vmlinux-file at offsets 0x18,
(0x28??), 0x8A and 0x98 with &= 0xFFFFFFF (without C0). Please take a look in
the som.h-file, which contents have to be patched !  This way the hpux-loader
could load the kernel to the correct adress-room and the kernel
(already) automatically sets up the virtual adress-mapping.
In our own bootloader we read the contents of this header too and use the
"ADJ_LOW"-Function to get the correct adresses before loading the kernel.

Sure, maybe Im totally wrong !

Helge Deller.

> 
> - Alex


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> Yes, I think this would be the best solution. When I wrote the program, I tri
> to include the header-files som.h and elf.h, but then I always got
> different errors from every of the arch-compilers (iA32 or hpux).  So maybe i
> is best to use the structure as above and write the structure-layout directly
> into the source.  
> Does someone want to fill it in and commit it ?

I'm already working with Grant on doing just that, but it'll probably be this
weekend at the earliest...

lamont


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Hi,

I've got two HP boxes.. Want to run linux on em.  I run linux on many other
boxes.  I'm trying to find an HP parisc distro or something, but am having
no luck!! Can anyone point me to a FAQ, a distro, where to get linux for
parisc, or something?? Please!?

John


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Xref: news.gmane.org gmane.linux.ports.parisc:9962

On Fri, 24 Sep 1999, John Delisle wrote:

> Hi,
> 
> I've got two HP boxes.. 

I only have one.

> Want to run linux on em.  

Me too!

> I run linux on many other boxes.  

Me too!

>I'm trying to find an HP parisc distro or something, but am having
> no luck!! 

None exists at this time.

> Can anyone point me to a FAQ, a distro, where to get linux for
> parisc, or something?? Please!?

Ok, here it is...

<-------------------------------------------------------------->

Linux PA-Risc Linux Kernel and Distribution FAQ
Rev 0.0000001 Alpha
by Eric Molitor (eric@molitor.org)


INDEX
   1) Where can I download a PA-Risc Linux Distribution?
   2) How can I create a PA-Risc Linux Distribution?
   3) How can I find a complete and functional kernel for PA-Risc?

ANSWERS

1) Where can I download a PA-Risc Linux Distribution?

   You can't, it doesn't exist yet.


2) How can I create a PA-Risc Linux Distribution?

   Find a functioning kernel first.


3) How can I find a complete and functional kernel for PA-Risc?

   I. Grab source from CVS
   II. Start Hacking


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Hi,

Thanks for all the previous responses to my last message re what am I
missing.  I've decided that I'll install HP UX 10.20 for now, and wait a
while until there is a more hashed out distro.

Anyhow, I tried to install 10.20 and ran into the same problem on both
boxes.  I can't get it to boot off of CD.  I've tried two different SCSI
cdroms, both older Toshibas.  I have autoboot and autosearch on, but it
always comes back with no boot devices available.  All I have hooked up to
the internal 50pin SCSI is the cdrom, ID 6, parity on, termination on.  Is
there some sort of trick?

Thanks
John


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: [parisc-linux] cleaning up IPL and ramdisks
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We've talked for awhile about rewriting all the bootup stuff, it's
served us well until now, but it really needs a rewrite to make it a lot
cleaner.  Is anyone interested in taking this on?  Helge?

The new version should use the same PDC calls as the rest of the kernel,
use the entire LIF structure declared in the HPUX header files. 
Philipp, did you have any other thoughts?


- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Alex deVries wrote:

> We've talked for awhile about rewriting all the bootup stuff, it's
> served us well until now, but it really needs a rewrite to make it a lot
> cleaner.  Is anyone interested in taking this on?  Helge?

Alex,

I am interested in helping since I've been struggling to get the kernel to
boot on the PA-RISC 2.0 architecture.

-Ryan

>
> The new version should use the same PDC calls as the rest of the kernel,
> use the entire LIF structure declared in the HPUX header files.
> Philipp, did you have any other thoughts?
>
> - Alex
>
> --
> Alex deVries
> Vice President of Engineering
> The Puffin Group
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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Subject: Re: [parisc-linux] cleaning up IPL and ramdisks
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Hi Alex,
Hi Ryan

Am Sun, 26 Sep 1999 schrieb Ryan Bradetich:
> Alex deVries wrote:
> 
> > We've talked for awhile about rewriting all the bootup stuff, it's
> > served us well until now, but it really needs a rewrite to make it a lot
> > cleaner.  Is anyone interested in taking this on?  Helge?

Im sorry, but actually Im too busy for the next two months (til begin of
december). Maybe someone other would like to take it over ?

> 
> Alex,
> 
> I am interested in helping since I've been struggling to get the kernel to
> boot on the PA-RISC 2.0 architecture.
> 
> -Ryan

Please go on...

> 
> >
> > The new version should use the same PDC calls as the rest of the kernel,
> > use the entire LIF structure declared in the HPUX header files.

Yes...

> > Philipp, did you have any other thoughts?
> >
> > - Alex
> >
> > --
> > Alex deVries
> > Vice President of Engineering
> > The Puffin Group


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From: phi@tcleur.france.hp.com
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Subject: [parisc-linux] endianism
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Hi All,

What is the endianism expected for hppa linux, as the processor can do
both?

Just curious
Phi

--
mailto:Philippe_Benard@hp.com
Technical Consulting Lab


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Xref: news.gmane.org gmane.linux.ports.parisc:9968

> What is the endianism expected for hppa linux, as the processor can do
> both?

Big-endian for now.  Little-endian userspace might be added later if someone
wants it, little-endian kernel sounds unlikely.


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From: Simen Thoresen <simen-tt@online.no>
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Subject: [parisc-linux] compiling on a 735?
Date: Mon, 27 Sep 1999 21:29:20 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:9969

Hi!

I've recently gotten hold of a 735/99 (A2608A) workstation (128M ram and 2 
really loud disks), and would like to contribute.

I've cleaned one of the disks, and on the other I've installed the 
egcs, flex and make depots (the bash-depot seems to be non-
existent, so I've compiled and installed it from gnu.org myself.

I've downloaded a kernel snapshot (some days ago), and now have 
some questions;

1. has anybody compiled ncurses, so that make menuconfig works? I'll give
it a try soon.
2. Is my 735 a 712 or 715? Does it matter at this stage?
3. Is my 735 a A class or D class? Does it matter?
4. The HCL notes that the 735 has a 7100, so that part is ok.
5. Gecko or Dino? I don't have one pci-slots, so I guess it's no Dino, right?



Making 0927:
make mrproper
(no errors)

make config:

Gecko support (CONFIG_GECKO) [Y/n/?]
scripts/Configure: [: missing `]'
DINO PCI support (CONFIG_GECKO_DINO) [Y/n/?] n

make dep
(no errors)

make Image:
su-2.03$ make Image
make -C arch/parisc/boot Image
make[1]: Entering directory `/usr/local/linux/arch/parisc/boot'
gcc -g0 mkImage.c -o mkImage
make[1]: *** No rule to make target `../../../vmlinux', needed by `Image'.
Stop
.
make[1]: Leaving directory `/usr/local/linux/arch/parisc/boot'
make: *** [Image] Error 2


make vmlinux:
su-2.03$ make vmlinux
gcc -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -o
scripts/split-include
scripts/split-include.c
scripts/split-include include/linux/autoconf.h include/config
gcc -D__KERNEL__ -I/usr/local/linux/include -Wall -Wstrict-prototypes -O2
-fomit
-frame-pointer -mdisable-fpregs -fwritable-strings  -fno-strict-aliasing
-pipe -
fno-strength-reduce  -c -o init/main.o init/main.c
init/main.c: In function `init':
init/main.c:1395: warning: implicit declaration of function `sys_dup'
gcc -D__KERNEL__ -I/usr/local/linux/include -Wall -Wstrict-prototypes -O2
-fomit
-frame-pointer -mdisable-fpregs -fwritable-strings  -fno-strict-aliasing
-pipe -
fno-strength-reduce -DUTS_MACHINE='"parisc"' -c -o init/version.o
init/version.c
make -C arch/parisc/boot ramdisk.o
make[1]: Entering directory `/usr/local/linux/arch/parisc/boot'
make[1]: *** No rule to make target `../../../ramdisk.bin', needed by
`ramdisk.c
'.  Stop.
make[1]: Leaving directory `/usr/local/linux/arch/parisc/boot'
make: *** [ramdisk.o] Error 2




Help?

-Simen, with an Apollo 735 Workstation, currently only counting cows.
(110KKeys/s)

--
"We do have a summer. Last year, I remember, it was a Wednesday" 
-Helga-Marie Johnesen, Norwegian citizen, TIME international.

GNUsig v0.9A R3
Support the GNUsig-project! Mail simen-tt@online.no for details.


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From: Bill Katz "\(William\)" <billk@sr.hp.com>
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Subject: [parisc-linux] compiling on a 735? (fwd)
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|
|Hi!
|
|I've recently gotten hold of a 735/99 (A2608A) workstation (128M ram and 2 
|really loud disks), and would like to contribute.
|
|I've cleaned one of the disks, and on the other I've installed the 
|egcs, flex and make depots (the bash-depot seems to be non-
|existent, so I've compiled and installed it from gnu.org myself.
|
|I've downloaded a kernel snapshot (some days ago), and now have 
|some questions;
|
|1. has anybody compiled ncurses, so that make menuconfig works? I'll give
|it a try soon.
|2. Is my 735 a 712 or 715? Does it matter at this stage?

It's neither, it's a 735.
It is however very similar to a 715/33,50,75, which are completely
different machines than 715/64,80,100.

|3. Is my 735 a A class or D class? Does it matter?

It's neither.

|4. The HCL notes that the 735 has a 7100, so that part is ok.

That's a 7100, not a 7100LC as used in 712, 715/64,80,100.

|5. Gecko or Dino? I don't have one pci-slots, so I guess it's no Dino, right?

It predates all of the Gecko era chips: LASI, DINO, etc.

	-Bill


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: Re: [parisc-linux] compiling on a 735?
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Simen Thoresen wrote:
> 1. has anybody compiled ncurses, so that make menuconfig works? I'll give
> it a try soon.

I don't think so, but we would like that.  I just use 'make config' in
the meantime.

> 2. Is my 735 a 712 or 715? Does it matter at this stage?

No, your 735 is a 735, but no, it doesn't matter.

> 3. Is my 735 a A class or D class? Does it matter?

It's really neither, and no, it doesn't matter yet either.   We just
don't have enough IO support yet for it to matter.

> 4. The HCL notes that the 735 has a 7100, so that part is ok.

Yuppers.

> 5. Gecko or Dino? I don't have one pci-slots, so I guess it's no Dino, right?

If it has EISA slots, it probably has WAX, for which we have no docs. 
It likely has Lasi, but I'm not sure and I'd need an HP person to tell
me.

> make[1]: *** No rule to make target `../../../ramdisk.bin', needed by
> `ramdisk.c
> '.  Stop.
> make[1]: Leaving directory `/usr/local/linux/arch/parisc/boot'
> make: *** [ramdisk.o] Error 2


You should grab ramdisk.bin from
ftp://puffin.external.hp.com/pub/parisc/binaries/ramdisks or similiar.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] compiling on a 735?
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Simen Thoresen wrote:
...
> 2. Is my 735 a 712 or 715? Does it matter at this stage?

More like a 715 but not. 735 has several GSC "EISA" slots vs.
715's goofy one.

> 3. Is my 735 a A class or D class? Does it matter?

Neither. 735 predates the A/D-class nomenclature just like 715/712 do too.

> 4. The HCL notes that the 735 has a 7100, so that part is ok.

yes - should at least work like a 715 for the most part...some of the
other chips might not be the same though. I don't know and wouldn't
count on it.

> 5. Gecko or Dino? I don't have one pci-slots, so I guess it's no Dino, right?

Right. No dino - could install card-mode dino if/when that starts to work.

cheers,
grant


Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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|Simen Thoresen wrote:
|> 3. Is my 735 a A class or D class? Does it matter?
|
|It's really neither, and no, it doesn't matter yet either.   We just
|don't have enough IO support yet for it to matter.
|
|> 4. The HCL notes that the 735 has a 7100, so that part is ok.
|
|Yuppers.
|
|> 5. Gecko or Dino? I don't have one pci-slots, so I guess it's no Dino, right?
|
|If it has EISA slots, it probably has WAX, for which we have no docs. 
|It likely has Lasi, but I'm not sure and I'd need an HP person to tell
|me.

This really all depends if it is an early 715 (/33,50,75) or late
715 (64,80,100). that you are comparing it to.  735s do NOT have
GSC, therefore they do not have WAX.  They do have EISA, but it comes
through ASP and perhaps some other intermediate chips.

I really need to get the docs for the earlier workstations out
before Agilent is split form HP and I don't have docs any more.

	-Bill


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On Wed, Sep 22, 1999 at 12:50:49PM -0500, John Delisle wrote:
> I run many linux servers from my company and at home.  We have an HP 9000
> 800/H50 and an 800/G40.  Can I run linux on it?  If so, is there a
> FAQ/howto or something? Where do I get it?

Linux/PARISC isn't in a usable state yet.  There is more chance of it
eventually running on the H50 than the G40, but both are likely to be
low-priority projects (unless someone wants to sponsor them :-)

> I'd really rather run linux than hpux.

What do you think is motivating the port?  :-)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


From - Thu Nov 08 21:16:07 2018
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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Booting from tape
Date: Tue, 28 Sep 1999 07:48:46 -0700 (PDT)
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I know that this is extremely low priority but...

I have tried to boot the linux kernel from a SCSI DDS
tape (copied via dd if=Image of=/dev/rmt/0m bs=512).
The same kernel (cvs tree from today) boots
sucessfully via rbootd on my 715/33. Here is the
console log:

              (c) Copyright Hewlett-Packard Company,
1991, 1992
Portions of this code are (c) Copyright Samsung
Electronics Co., Ltd, 91, 92

PDC ROM rev. 1.4
IODC ROM rev. 1.2
48 MB of memory have been configured.


Selecting a system to boot.
To stop selection process, press and hold the ESCAPE
key.

Selection process stopped.

Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device
Type
----------------------------------------------------------------------------

P0                    scsi.6.0                 HP     
C3324A
P1                    scsi.3.0                 HP     
C2490AM
P2                    scsi.0.0                 HP     
HP35480A



b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu: b p2

Trying scsi.0.0
Boot path initialized.
Attempting to load IPL.

Failed I/O operation with scsi.0.0
ENTRY_IO status = -10

00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
00004F04 000000FF FF0009BF 00000000 800100DC 00000000
0025F000 00000400
98080000 00000000 00008C60 00000000 000000FF 00000000
00000000 00000000


Searching for Potential Boot Devices.

Should this work or is this a current limitation ?

Ulrich


__________________________________________________
Do You Yahoo!?
Bid and sell for free at http://auctions.yahoo.com


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
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Subject: Re: [parisc-linux] Booting from tape
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Am Tue, 28 Sep 1999 schrieb Ulrich Strelow:
> I know that this is extremely low priority but...
> 
> I have tried to boot the linux kernel from a SCSI DDS
> tape (copied via dd if=Image of=/dev/rmt/0m bs=512).
> The same kernel (cvs tree from today) boots
> sucessfully via rbootd on my 715/33. Here is the
> console log:
> 
>               (c) Copyright Hewlett-Packard Company,
> 1991, 1992
> Portions of this code are (c) Copyright Samsung
> Electronics Co., Ltd, 91, 92
> 
> PDC ROM rev. 1.4
> IODC ROM rev. 1.2
> 48 MB of memory have been configured.
> 
> 
> Selecting a system to boot.
> To stop selection process, press and hold the ESCAPE
> key.
> 
> Selection process stopped.
> 
> Searching for Potential Boot Devices.
> To terminate search, press and hold the ESCAPE key.
> 
> Device Selection      Device Path              Device
> Type
> ----------------------------------------------------------------------------
> 
> P0                    scsi.6.0                 HP     
> C3324A
> P1                    scsi.3.0                 HP     
> C2490AM
> P2                    scsi.0.0                 HP     
> HP35480A
> 
> 
> 
> b)    Boot from specified device
> s)    Search for bootable devices
> a)    Enter Boot Administration mode
> x)    Exit and continue boot sequence
> ?)    Help
> 
> Select from menu: b p2
> 
> Trying scsi.0.0
> Boot path initialized.
> Attempting to load IPL.
> 
> Failed I/O operation with scsi.0.0
> ENTRY_IO status = -10
> 
> 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000 00000000
> 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000 00000000
> 00004F04 000000FF FF0009BF 00000000 800100DC 00000000
> 0025F000 00000400
> 98080000 00000000 00008C60 00000000 000000FF 00000000
> 00000000 00000000
> 
> 
> Searching for Potential Boot Devices.
> 
> Should this work or is this a current limitation ?

It should work and it did it already in the past. I think the bootloader is
currently not in the best condition since we arent able to boot via
hpux-bootloader too anymore.
(This is one of the problems which will be adressed in the very near future...)

Helge.


> 
> Ulrich
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Bid and sell for free at http://auctions.yahoo.com
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Booting from tape
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Ulrich Strelow wrote:
> I know that this is extremely low priority but...
> 
> I have tried to boot the linux kernel from a SCSI DDS
> tape (copied via dd if=Image of=/dev/rmt/0m bs=512).
> The same kernel (cvs tree from today) boots
> sucessfully via rbootd on my 715/33. Here is the
> console log:
...
> Select from menu: b p2
> 
> Trying scsi.0.0
> Boot path initialized.
> Attempting to load IPL.
> 
> Failed I/O operation with scsi.0.0
> ENTRY_IO status = -10
> 
> 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000 00000000
> 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000 00000000
> 00004F04 000000FF FF0009BF 00000000 800100DC 00000000
> 0025F000 00000400
> 98080000 00000000 00008C60 00000000 000000FF 00000000
> 00000000 00000000

I believe this is a problem with either how the tape was created
or talking to the tape drive. Does anyone know where to find what
the -10 status means?

Another difference when booting from tape (vs disk), is how the
tape is "made". One *must* specify 2k block size. It doesn't matter
for disk devices. Eg: 

	dd if=Image of=/dev/rmt/0m bs=2k

I don't know if Image is intentionally padded to a 2k block size.
One might check that too.

grant


Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Kirk Bresniker <kirkb@chrome.rose.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting from tape
Date: Tue, 28 Sep 1999 10:28:46 PDT
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| > Attempting to load IPL.
| > 
| > Failed I/O operation with scsi.0.0
| > ENTRY_IO status = -10
| > 
| > 00000000 00000000 00000000 00000000 00000000 00000000
| > 00000000 00000000
| > 00000000 00000000 00000000 00000000 00000000 00000000
| > 00000000 00000000
| > 00004F04 000000FF FF0009BF 00000000 800100DC 00000000
| > 0025F000 00000400
| > 98080000 00000000 00008C60 00000000 000000FF 00000000
| > 00000000 00000000
| 
| I believe this is a problem with either how the tape was created
| or talking to the tape drive. Does anyone know where to find what
| the -10 status means?


>From the firmware comments:

/* RETURNS:
/*
/*   3   :  EOF Encountered ( Sequential Device only)
/*   2   :  Recoverable error
/*   1   : Inexact I/O Transfer
/*   0   : OK
/*   -2  : Non Existant Option.
/*   -3  : Cannot complete call without error
/*   -4  : Unrecoverable Hardware Error
/*   -6  : Illegal Device Address
/*   -7  : Non Existant Device
/*   -8  : Module/Device not ready
/*   -10 : Invalid Argument ( Invalid SCSI ID or LUN )
/*   -12 : Unsupported Record Size
/*   -14 : Illegal Device block Size

KMB
--
+============================================================+
|       Kirk Bresniker    	(916) 748-2393		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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From: Tom Javen <tomja@InnoTrac.fi>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting from tape
Date: Tue, 28 Sep 1999 21:07:54 +0300 (EEST)
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Xref: news.gmane.org gmane.linux.ports.parisc:9979

On Tue, 28 Sep 1999, Grant Grundler wrote:

> Ulrich Strelow wrote:
> > I know that this is extremely low priority but...
> > 
> > I have tried to boot the linux kernel from a SCSI DDS
> > tape (copied via dd if=Image of=/dev/rmt/0m bs=512).
> > The same kernel (cvs tree from today) boots
> > sucessfully via rbootd on my 715/33. Here is the
> > console log:
> ...
> > Select from menu: b p2
> > 
> > Trying scsi.0.0
> > Boot path initialized.
> > Attempting to load IPL.
> > 
> > Failed I/O operation with scsi.0.0
> > ENTRY_IO status = -10
> > 
> > 00000000 00000000 00000000 00000000 00000000 00000000
> > 00000000 00000000
> > 00000000 00000000 00000000 00000000 00000000 00000000
> > 00000000 00000000
> > 00004F04 000000FF FF0009BF 00000000 800100DC 00000000
> > 0025F000 00000400
> > 98080000 00000000 00008C60 00000000 000000FF 00000000
> > 00000000 00000000
> 
> I believe this is a problem with either how the tape was created
> or talking to the tape drive. Does anyone know where to find what
> the -10 status means?
> 
> Another difference when booting from tape (vs disk), is how the
> tape is "made". One *must* specify 2k block size. It doesn't matter
> for disk devices. Eg: 
> 
> 	dd if=Image of=/dev/rmt/0m bs=2k
If I remember correctly the utah sources mkboot program has a comment that
says the file should be an odd number of 1k blocks. It has a -t option for
making tape files. 


Tom
-- 
=============================+===========================
Tom Javen                    |   Innotrac Diagnostics Oy
email tom.javen@innotrac.fi  |   Finland
gsm   +358-40-5860532        |   phone +358-2-2410025
                             |   fax   +358-2-2410024
=============================+===========================
     


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From: Simen Thoresen <simen-tt@online.no>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] compiling (and booting) on a 735
Date: Tue, 28 Sep 1999 21:30:46 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:9980

I've now downloaded the ramdisk.bin image (0903), and have compiled with
that. The compile worked, and I'm now sitting with a probably nonworking
kernel :-)

How do I boot?

I'v killed the filesystem on my 2nd disk, doing cat vmlinux >
/dev/dsk/c0t2d0 . No great loss, as I'v emtied it of useful data, and was
planning to do that anyway. Unfortunately, when I boot from P1, IPL
responds with 'bad LIF magic'. back to hpux, then....

Do I need a tftp-server and try for a netboot?


make menuconfig:
I've downloaded ncurses (v 4.2 from ftp.gnu.org,
/gnu/ncurses/ncurses-4.2.tar.gz ) and installed it.

I then linked /usr/local/include (where ncurses.h resides) to
/usr/include/ncurses
(so that /usr/include/ncurses/ncurses.h exists), and sssslightly modified
linux/scripts/lxdialog/Makefile, as HPUX's find barfed on 
-maxdepth 1.

sh-2.03$ diff Makefile.old Makefile
33c33
<       @x=`find /lib/ /usr/lib/ /usr/local/lib/ -maxdepth 1 -name
'libncurses.*
'` ;\
---
>       @x=`find /lib/ /usr/lib/ /usr/local/lib/ -name 'libncurses.*'` ;\

Running make menuconfig from the kernel directory now works great, and I
can build nonworking kernels with gusto.

-Simen Thoresen - finally hacking something useful.
--
"We do have a summer. Last year, I remember, it was a Wednesday" 
-Helga-Marie Johnesen, Norwegian citizen, TIME international.

GNUsig v0.9A R3
Support the GNUsig-project! Mail simen-tt@online.no for details.


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From: Philipp Rumpf <prumpf@suse.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] compiling (and booting) on a 735
Date: Tue, 28 Sep 1999 21:28:27 +0200
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To: Simen Thoresen <simen-tt@online.no>
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Xref: news.gmane.org gmane.linux.ports.parisc:9981

On Tue, Sep 28, 1999 at 09:30:46PM +0200, Simen Thoresen wrote:
> Do I need a tftp-server and try for a netboot?

That's what I'd do.

> make menuconfig:
> I've downloaded ncurses (v 4.2 from ftp.gnu.org,
> /gnu/ncurses/ncurses-4.2.tar.gz ) and installed it.
> 
> I then linked /usr/local/include (where ncurses.h resides) to
> /usr/include/ncurses
> (so that /usr/include/ncurses/ncurses.h exists), and sssslightly modified
> linux/scripts/lxdialog/Makefile, as HPUX's find barfed on 
> -maxdepth 1.

use GNU find.

> Running make menuconfig from the kernel directory now works great, and I

very cool.


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From: Frank Rowand <frowand@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting from tape
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Cc: grundler@cup.hp.com, ulrich_strelow@yahoo.com,
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To: Kirk Bresniker <kirkb@chrome.rose.hp.com>
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Kirk Bresniker wrote:
> 
> | > Attempting to load IPL.
> | >
> | > Failed I/O operation with scsi.0.0
> | > ENTRY_IO status = -10
> | >
> | > 00000000 00000000 00000000 00000000 00000000 00000000
> | > 00000000 00000000
> | > 00000000 00000000 00000000 00000000 00000000 00000000
> | > 00000000 00000000
> | > 00004F04 000000FF FF0009BF 00000000 800100DC 00000000
> | > 0025F000 00000400
> | > 98080000 00000000 00008C60 00000000 000000FF 00000000
> | > 00000000 00000000
> |
> | I believe this is a problem with either how the tape was created
> | or talking to the tape drive. Does anyone know where to find what
> | the -10 status means?
> 
> >From the firmware comments:
> 
> /* RETURNS:
> /*
> /*   3   :  EOF Encountered ( Sequential Device only)
> /*   2   :  Recoverable error
> /*   1   : Inexact I/O Transfer
> /*   0   : OK
> /*   -2  : Non Existant Option.
> /*   -3  : Cannot complete call without error
> /*   -4  : Unrecoverable Hardware Error
> /*   -6  : Illegal Device Address
> /*   -7  : Non Existant Device
> /*   -8  : Module/Device not ready
> /*   -10 : Invalid Argument ( Invalid SCSI ID or LUN )
> /*   -12 : Unsupported Record Size
> /*   -14 : Illegal Device block Size
> 
> KMB

And for future reference to save Kirk from having to look at his
source code...

The IO ACD is at

  http://dtf.external.hp.com/dtf/swdev/pdf/iodc.pdf

The Entry_IO errors are on page 42 of the PDC (document p. 3-40).

-Frank Rowand


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HOSTCC vs CC and other nits
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I think Phil (with help from Alex) broke kernel builds...

While trying to creatively fix the init_task_union alignment
garbage, I can't build anymore....Here's the problems:

o I don't have and don't want a native gcc.  I want to know when
  things are building for the native or cross environment.
  That means use HOSTCC (instead of $(CC)) in the Makefiles.
  I can then do "make vmlinux HOSTCC=cc".

o I don't have obj_dump. And I haven't the faintest clue
  where to find it. Could we use nm instead?

o I looked at checkalign.c and am feeling a bit confused.
  Why is the code testing for 4K alignment?
  I though the requirement was 8K alignement...

I fixed the first problem.

Here another idea for the second two:

/usr/bin/nm vmlinux |awk '/init_task_union/ {
	n = int($2); t = int(n/8192); t *= 8192;
	if (n != t) {
		print NOT
	}
	printf("0x%x vs 0x%x\n", n, t)
}' FS=\|

Perl is probably better for this kind of stuff (has "&"
operator which is missing from awk). But I'm not a very good
perl hacker...

enjoy,
grant


Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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On Tue, Sep 28, 1999 at 11:05:27PM -0700, Grant Grundler wrote:
> o I don't have obj_dump. And I haven't the faintest clue
>   where to find it. Could we use nm instead?

objdump is part of GNU binutils.  I'm not sure why we use it rather
than nm.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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From: Phil Schwan <pschwan@thepuffingroup.com>
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Subject: Re: [parisc-linux] HOSTCC vs CC and other nits
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On Sep 28, Grant Grundler wrote:
>   That means use HOSTCC (instead of $(CC)) in the Makefiles.
>   I can then do "make vmlinux HOSTCC=cc".

Oops.  Understandable desire, you're right of course.

> o I don't have obj_dump. And I haven't the faintest clue
>   where to find it. Could we use nm instead?

It's part of GNU binutils, which I thought we required to build the
kernel anyways?

> o I looked at checkalign.c and am feeling a bit confused.
>   Why is the code testing for 4K alignment?
>   I though the requirement was 8K alignement...

It tests based on the assumption that it's either 4K or 8K aligned.
If it's in fact only aligned on a 4K boundary, addr&4096 will be true.
Or have I horked that?

> Perl is probably better for this kind of stuff (has "&"
> operator which is missing from awk). But I'm not a very good
> perl hacker...

We figured that requiring perl to build was probably a bad idea.  Not
that this whole thing isn't already a bad idea... :)

I'll make some changes to make it more friendly.

-Phil


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting from tape
Date: Wed, 29 Sep 1999 07:58:15 -0700 (PDT)
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Hi all,

thanks for all the tips. dd-ing with bs=2k made the
difference. The kernel now also boots from a SCSI DDS
tape drive (HP35480A). My first thought was to choose
the disk sector size 512 but this was wrong.

Ulrich

--- Grant Grundler <grundler@cup.hp.com> wrote:
> Ulrich Strelow wrote:
> > I know that this is extremely low priority but...
> > 
> > I have tried to boot the linux kernel from a SCSI
> DDS
> > tape (copied via dd if=Image of=/dev/rmt/0m
> bs=512).
> > The same kernel (cvs tree from today) boots
> > sucessfully via rbootd on my 715/33. Here is the
> > console log:
> ...
> > Select from menu: b p2
> > 
> > Trying scsi.0.0
> > Boot path initialized.
> > Attempting to load IPL.
> > 
> > Failed I/O operation with scsi.0.0
> > ENTRY_IO status = -10
> > 
> > 00000000 00000000 00000000 00000000 00000000
> 00000000
> > 00000000 00000000
> > 00000000 00000000 00000000 00000000 00000000
> 00000000
> > 00000000 00000000
> > 00004F04 000000FF FF0009BF 00000000 800100DC
> 00000000
> > 0025F000 00000400
> > 98080000 00000000 00008C60 00000000 000000FF
> 00000000
> > 00000000 00000000
> 
> I believe this is a problem with either how the tape
> was created
> or talking to the tape drive. Does anyone know where
> to find what
> the -10 status means?
> 
> Another difference when booting from tape (vs disk),
> is how the
> tape is "made". One *must* specify 2k block size. It
> doesn't matter
> for disk devices. Eg: 
> 
> 	dd if=Image of=/dev/rmt/0m bs=2k
> 
> I don't know if Image is intentionally padded to a
> 2k block size.
> One might check that too.
> 
> grant
> 
> 
> Grant Grundler
> Communications Infrastructure Computer Operations
> +1.408.447.7253
> 
>
---------------------------------------------------------------------------
> To unsubscribe: send e-mail to
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 

__________________________________________________
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Subject: [parisc-linux] Testers needed for hardware detection code...
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Yesterday I committed some hardware detection code that actually worked
on my A180.  I spent today refining it to work on my 715, which works,
but I need others to test it on different hardware.

Here's what I get on my 715:

Probing PDC firmware for devices, found:
This is an older box...
   - Scorpio Sr. Core SCSI (10) at 0xf0825000, versions 0x19, 0x0, 0x71,
0x0,    
   - Scorpio Sr. Core LAN (802.3) (10) at 0xf0826000, versions 0x19,
0x0, 
   - Scorpio Sr. Core HIL (10) at 0xf0821000, versions 0x19, 0x0, 0x73,
0x0, 
   - Scorpio Sr. Core RS-232 (10) at 0xf0823000, versions 0x19, 0x0,
0x75, 
   - Scorpio Sr. Core RS-232 (10) at 0xf0822000, versions 0x19, 0x0,
0x75, 
   - Scorpio Sr. Core Centronics (10) at 0xf0824000, versions 0x19, 0x0,
0x74, 
   - Scorpio Sr. Audio (10) at 0xf1000000, versions 0x19, 0x0, 0x7b,
0x0, 0x0
That's 7 devices total.
Linux version 2.2.12 (adevries@rum) (gcc version egcs-2.91.60 19981201
(egcs-1.5 Thu Sep 30 09:22:07 EDT 1999
etc

On my A180 (with an add in 10/100 ethernet card and a dual gigabit
ethernet card), I get:

Probing PDC firmware for devices, found:
   - Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0,
0x0,  
   - Phantom PseudoBC GSC+ Port (7) at 0xffc01000, versions 0x505, 0x0,
0x0,   
   - HP HSC-PCI Cards (4) at 0xfff84000, versions 0x4, 0x0, 0x9d, 0x0,
0x80
   - HP HSC-PCI Cards (4) at 0xfff88000, versions 0x4, 0x0, 0x9d, 0x0,
0x80
   - Staccato L2 180 (A Class 180) (0) at 0xfffbe000, versions 0x516,
0x0,     
   - Staccato L2 180 Memory (1) at 0xfffbf000, versions 0x8b, 0x0, 0x9,
0x0,    
   - Staccato 180 Lasi (11) at 0xffd00000, versions 0x5f, 0x0, 0x81,
0x0, 0x0
   - Staccato 180 Core LAN RS-232 (10) at 0xffd05000, versions 0x5f,
0x0, 
   - Staccato 180 Core SCSI (10) at 0xffd06000, versions 0x5f, 0x0,
0x82, 0x0, 
   - Dino PCI Bridge (13) at 0xfff80000, versions 0x680, 0x3, 0xa, 0x0,
0x0
That's 10 devices total.
Linux version 2.2.12 (adevries@rum) (gcc version egcs-2.91.60 19981201
(egcs-1.5 Thu Sep 30 09:22:07 EDT 1999

I'm very interested in seeing the results on pretty much any other
hardware.  Could people please test either building a kernel from
source, or from the binary at:

ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/Image-19990929

I'd appreciate it if you could just mail me
(adevries@thepuffingroup.com) the results of an entire bootup.  If you
could put the machine name in the subject, it'd help.

Getting this to go was pretty hard, since the docs for MEM_MAP and
SYSTEM_MAP were unavailable at the time of the writing of the code. The
somewhat random alignment chewed up a lot of time.  

In other good news, it sounds like Philipp is close to getting a serial
console on Lasi going.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Testers needed for hardware detection code...
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Xref: news.gmane.org gmane.linux.ports.parisc:9988

Alex deVries wrote:
> 
> Yesterday I committed some hardware detection code that actually worked
> on my A180.  I spent today refining it to work on my 715, which works,
> but I need others to test it on different hardware.

Kudos!

...
> I'd appreciate it if you could just mail me
> (adevries@thepuffingroup.com) the results of an entire bootup.  If you
> could put the machine name in the subject, it'd help.

Alex meant "model" (eg 9000/715/E) output or "Model" info which
is typically printed next to the serial number on the back of the box.

He really doesn't care if your hostname is "frodo". :^)

cheers,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: [parisc-linux] registering device drivers
Date: Fri, 01 Oct 1999 02:44:45 -0400
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So the step after finding modules is to be able to get device drivers to
be loaded when modules are found.

I've got the start of this going, and now I get this as output:
    
Found devices:
0. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0,
0x0, 0x0,0
1. Phantom PseudoBC GSC+ Port (7) at 0xffc01000, versions 0x505, 0x0,
0x0, 0x0,0
2. HP HSC-PCI Cards (4) at 0xfff84000, versions 0x4, 0x0, 0x9d, 0x0,
0x80
3. HP HSC-PCI Cards (4) at 0xfff88000, versions 0x4, 0x0, 0x9d, 0x0,
0x80
4. Staccato L2 180 (A Class 180) (0) at 0xfffbe000, versions 0x516, 0x0,
0x4, 01
5. Staccato L2 180 Memory (1) at 0xfffbf000, versions 0x8b, 0x0, 0x9,
0x0, 0x0
6. Staccato 180 Lasi (11) at 0xffd00000, versions 0x5f, 0x0, 0x81, 0x0,
0x0
7. Staccato 180 Core LAN RS-232 (10) at 0xffd05000, versions 0x5f, 0x0,
0x8c, 00
8. Staccato 180 Core SCSI (10) at 0xffd06000, versions 0x5f, 0x0, 0x82,
0x0, 0x0
9. Dino PCI Bridge (13) at 0xfff80000, versions 0x680, 0x3, 0xa, 0x0,
0x0
That's a total of 10 devices.
in register_driver
Dino callback called, should be at 0xfff80000
Dino callback called, should be at 0xfff84000
Dino callback called, should be at 0xfff88000
in register_driver
callback for Lasi at HPA 0xffd00000

Here, you can see it finding all the hardware, then loading the Dino and
Lasi drivers at the appropriate HPAs.  Of course, the dino and lasi
startups are just shells, but the drivers can now be fixed to actually
*do* something (like find more devices on it's own bus, and register
those).

The system should work pretty well: device drivers can be registered at
any time (when registering them, they check to see if any devices need
driving), and devices can be registered at any time (checking to see if
there's any available drivers for them).

I'll commit some of this tomorrow. My changes offer the skeletons of
what needs to be in lasi.c and dino.c, those'll be have to be filled in.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Subject: [parisc-linux] [grundler@puffin.external.hp.com: commit FP coproc enable code?]
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Subject: commit FP coproc enable code?
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[ 4th try...I'm not getting a copy back from the reflector...]

Hi all,
I'd like to commit changes to enable FP coproc for PA 1.1 arch.
Any objections?

o FP enable via writing cr10 (CCR) register. Not doing this the "right"
  way - which is to use PDC_COPROC but it will work for all PA1.1
  platforms.

o remove extraneous console output. I want to post console output
  for my next problem: kernel panic when trying to kill idle_task.

thanks,
grant

Index: linux/arch/parisc/kernel/head.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/head.S,v
retrieving revision 1.32
diff -u -r1.32 head.S
--- head.S      1999/08/31 19:25:23     1.32
+++ head.S      1999/09/30 22:43:03
@@ -295,9 +295,20 @@
        ldil            L%KERNEL_PSW,%r10
        ldo             R%KERNEL_PSW(%r10),%r10
        mtctl           %r10,%ipsw
-       
-       mtctl           %r0,%cr17               ; Clear two-level IIA Space Queue
-       mtctl           %r0,%cr17               ;    effectively setting kernel space.
+
+       ; Just assume we have an FP coprocessor and assume firmware
+       ; did not enable it.
+       ; Pass what firmware set CCR (cr10) to start_parisc() and print it.
+       mfctl           %cr10, %arg2
+
+#define FP_COPROC_ENABLE 0xc0
+       ldil            L%FP_COPROC_ENABLE,%r10
+       ldo             R%FP_COPROC_ENABLE(%r10),%r10
+       mtctl           %r10,%cr10      ; CCR
+
+
+       mtctl           %r0,%cr17       ; Clear two-level IIA Space Queue
+       mtctl           %r0,%cr17       ;    effectively setting kernel space.
        ldil            L%start_parisc,%r10
        ldo             R%start_parisc(%r10),%r10
 
Index: linux/arch/parisc/kernel/setup.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/setup.c,v
retrieving revision 1.59
diff -u -r1.59 setup.c
--- setup.c     1999/09/28 22:34:57     1.59
+++ setup.c     1999/09/30 22:43:15
@@ -587,13 +587,16 @@
 #define PA(x) (void *)((unsigned long)(x)&~0xc0000000)
 extern int pdc_call_x(void *,...);
 
+#if 0
 static char iodc_tbuf[4096] __attribute__((aligned(4096))) = "Hallo\n";
 static char iodc_rbuf[4096] __attribute__((aligned(4096))) = "Hallo\n";
+#endif
 
 __initfunc(void start_parisc(unsigned long new_memory_start, 
-                            char *bootloader_command_line))
+                            char *bootloader_command_line,
+                            unsigned long ccr))
 {
-#if 1
+#if 0
        pdc_call_x(
                (void *)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
                PAGE0->mem_cons.spa, PAGE0->mem_cons.dp.layers,
@@ -613,28 +616,24 @@
        pdc_console_init();
 
        printk("The Kernel has started...\n");
+#if 0
        printk("Hmm\n");
        printk("%d\n", 7);
        printk("%d\n", *(unsigned *)0xc0000000);
-
+#endif
        printk("%p\n", bootloader_command_line);
        printk("You are running a %dMHz PA-RISC-Machine with %dMB of RAM.\n",
                ((int)PAGE0->mem_10msec/10000), PAGE0->imm_max_mem>>20);
+       printk("FP CCR was set to: 0x%x\n", (int) ccr);
        parisc_memstart = new_memory_start;
        
        pdc = PAGE0->mem_pdc;
 
-       printk("You are running a %dMHz PA-RISC-Machine with %dMB of RAM.\n",
-               ((int)PAGE0->mem_10msec/10000), PAGE0->imm_max_mem>>20);
-
        if (bootloader_command_line)
            strcpy(saved_command_line,__va(bootloader_command_line));
        else
            saved_command_line[0] = 0;
 
-       printk("You are running a %dMHz PA-RISC-Machine with %dMB of RAM.\n",
-               ((int)PAGE0->mem_10msec/10000), PAGE0->imm_max_mem>>20);
-
        printk("Free memory was at 0x%08lX (=stackbase, stacksize=0x%08lX).\n",
                new_memory_start,(unsigned long)KERNEL_STACKSIZE );
 
@@ -659,7 +658,7 @@
 #endif
        initrd_below_start_ok = 1;
        
-       printk("initrd: %08x-%08x\n", initrd_start, initrd_end);
+       printk("initrd: %08x-%08x\n", (int) initrd_start, (int) initrd_end);
        *memory_start_p = parisc_memstart;
        *memory_end_p   = 0xc2000000;
 
Index: linux/drivers/block/rd.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/block/rd.c,v
retrieving revision 1.3
diff -u -r1.3 rd.c
--- rd.c        1999/09/22 18:10:17     1.3
+++ rd.c        1999/09/30 22:43:26
@@ -219,7 +219,6 @@
 {
        int left;
 
-       printk("initrd_read\n");
        left = initrd_end - initrd_start - *ppos;
        if (count > left) count = left;
        if (count == 0) return 0;

Index: linux/fs/buffer.c
===================================================================
RCS file: /home/cvs/parisc/linux/fs/buffer.c,v
retrieving revision 1.3
diff -u -r1.3 buffer.c
--- buffer.c    1999/09/22 18:10:35     1.3
+++ buffer.c    1999/09/30 22:44:21
@@ -840,8 +840,6 @@
 
        struct buffer_head * bh;
 
-       printk("bread bh=%08x\n", bh);
-//     printk("%08x\n", &buffer_page(bh)->flags);
        bh = getblk(dev, block, size);
        if (buffer_uptodate(bh))
                return bh;

--5Mfx4RzfBqgnTE/w--


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To: parisc-linux@thepuffingroup.com
Subject: permission to submit changes?
Old-Date: Thu, 30 Sep 1999 22:38:53 -0700
From: Grant Grundler <grundler@cup.hp.com>
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I'd like to submit the following minor changes. Any objections?

o enables FP coprocessor blindly - OK for PA 1.1 systems.
  Should be using PDC_PROC but I just wanted to try it out.

o clean up some of the excessive console output.
  More could be done here. But I just wanted to be able
  to cut/paste reasonable amounts of stuff.
  
Yes, my kernel panic'd when trying to kill the idle task.
That's an improvement over the "code 22 interrupt".
I'll post the output tomorrow.

(Lamont was feeling a bit guilty about not having hacked mkImage.c
despite volunteering for it...)

thanks,
grant

Index: linux/arch/parisc/kernel/head.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/head.S,v
retrieving revision 1.32
diff -u -r1.32 head.S
--- head.S	1999/08/31 19:25:23	1.32
+++ head.S	1999/09/30 22:43:03
@@ -295,9 +295,20 @@
 	ldil		L%KERNEL_PSW,%r10
 	ldo		R%KERNEL_PSW(%r10),%r10
 	mtctl		%r10,%ipsw
-	
-	mtctl		%r0,%cr17		; Clear two-level IIA Space Queue
-	mtctl		%r0,%cr17		;    effectively setting kernel space.
+
+	; Just assume we have an FP coprocessor and assume firmware
+	; did not enable it.
+	; Pass what firmware set CCR (cr10) to start_parisc() and print it.
+	mfctl		%cr10, %arg2
+
+#define FP_COPROC_ENABLE 0xc0
+	ldil		L%FP_COPROC_ENABLE,%r10
+	ldo		R%FP_COPROC_ENABLE(%r10),%r10
+	mtctl		%r10,%cr10	; CCR
+
+
+	mtctl		%r0,%cr17	; Clear two-level IIA Space Queue
+	mtctl		%r0,%cr17	;    effectively setting kernel space.
 	ldil		L%start_parisc,%r10
 	ldo		R%start_parisc(%r10),%r10
 
Index: linux/arch/parisc/kernel/setup.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/setup.c,v
retrieving revision 1.59
diff -u -r1.59 setup.c
--- setup.c	1999/09/28 22:34:57	1.59
+++ setup.c	1999/09/30 22:43:15
@@ -587,13 +587,16 @@
 #define PA(x) (void *)((unsigned long)(x)&~0xc0000000)
 extern int pdc_call_x(void *,...);
 
+#if 0
 static char iodc_tbuf[4096] __attribute__((aligned(4096))) = "Hallo\n";
 static char iodc_rbuf[4096] __attribute__((aligned(4096))) = "Hallo\n";
+#endif
 
 __initfunc(void start_parisc(unsigned long new_memory_start, 
-			     char *bootloader_command_line))
+			     char *bootloader_command_line,
+			     unsigned long ccr))
 {
-#if 1
+#if 0
 	pdc_call_x(
 		(void *)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
 		PAGE0->mem_cons.spa, PAGE0->mem_cons.dp.layers,
@@ -613,28 +616,24 @@
 	pdc_console_init();
 
 	printk("The Kernel has started...\n");
+#if 0
 	printk("Hmm\n");
 	printk("%d\n", 7);
 	printk("%d\n", *(unsigned *)0xc0000000);
-
+#endif
 	printk("%p\n", bootloader_command_line);
 	printk("You are running a %dMHz PA-RISC-Machine with %dMB of RAM.\n",
 		((int)PAGE0->mem_10msec/10000), PAGE0->imm_max_mem>>20);
+	printk("FP CCR was set to: 0x%x\n", (int) ccr);
 	parisc_memstart = new_memory_start;
 	
 	pdc = PAGE0->mem_pdc;
 
-	printk("You are running a %dMHz PA-RISC-Machine with %dMB of RAM.\n",
-		((int)PAGE0->mem_10msec/10000), PAGE0->imm_max_mem>>20);
-
 	if (bootloader_command_line)
 	    strcpy(saved_command_line,__va(bootloader_command_line));
 	else
 	    saved_command_line[0] = 0;
 
-	printk("You are running a %dMHz PA-RISC-Machine with %dMB of RAM.\n",
-		((int)PAGE0->mem_10msec/10000), PAGE0->imm_max_mem>>20);
-
 	printk("Free memory was at 0x%08lX (=stackbase, stacksize=0x%08lX).\n",
 		new_memory_start,(unsigned long)KERNEL_STACKSIZE );
 
@@ -659,7 +658,7 @@
 #endif
 	initrd_below_start_ok = 1;
 	
-	printk("initrd: %08x-%08x\n", initrd_start, initrd_end);
+	printk("initrd: %08x-%08x\n", (int) initrd_start, (int) initrd_end);
 	*memory_start_p = parisc_memstart;
 	*memory_end_p	= 0xc2000000;
 
Index: linux/drivers/block/rd.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/block/rd.c,v
retrieving revision 1.3
diff -u -r1.3 rd.c
--- rd.c	1999/09/22 18:10:17	1.3
+++ rd.c	1999/09/30 22:43:26
@@ -219,7 +219,6 @@
 {
 	int left;
 
-	printk("initrd_read\n");
 	left = initrd_end - initrd_start - *ppos;
 	if (count > left) count = left;
 	if (count == 0) return 0;

Index: linux/fs/buffer.c
===================================================================
RCS file: /home/cvs/parisc/linux/fs/buffer.c,v
retrieving revision 1.3
diff -u -r1.3 buffer.c
--- buffer.c	1999/09/22 18:10:35	1.3
+++ buffer.c	1999/09/30 22:44:21
@@ -840,8 +840,6 @@
 
 	struct buffer_head * bh;
 
-	printk("bread bh=%08x\n", bh);
-//	printk("%08x\n", &buffer_page(bh)->flags);
 	bh = getblk(dev, block, size);
 	if (buffer_uptodate(bh))
 		return bh;

--Z0mFw3+mXTC5ycVe--


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From: Philipp Rumpf <prumpf@suse.de>
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Subject: Re: [parisc-linux] commit FP coproc enable code?
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> o FP enable via writing cr10 (CCR) register. Not doing this the "right"
>   way - which is to use PDC_COPROC but it will work for all PA1.1
>   platforms.

Why is not using PDC_COPROC not the right way ?  It should do exactly the same
thing, modulo machines without FPU (for which we do not provide emulation
anyway) and firmware bugs ...

> ===================================================================
> RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/head.S,v
> retrieving revision 1.32
> diff -u -r1.32 head.S
> --- head.S      1999/08/31 19:25:23     1.32
> +++ head.S      1999/09/30 22:43:03

I would prefer to do this somewhere after the kernel is loaded, in C, surrounded
by a pair of printks, so we know whether it is this that hangs the machine.


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Subject: Re: [parisc-linux] commit FP coproc enable code?
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Philipp Rumpf wrote:
> > o FP enable via writing cr10 (CCR) register. Not doing this the "right"
> >   way - which is to use PDC_COPROC but it will work for all PA1.1
> >   platforms.
> 
> Why is not using PDC_COPROC not the right way ?
> It should do exactly the same
> thing, modulo machines without FPU (for which we do not provide emulation
> anyway) and firmware bugs ...

You are right.
But I'm lazy and I don't care right now about machines older than PA 1.1.
Someone who cares about PA 1.0 can implement that.

> 
> > ===================================================================
> > RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/head.S,v
> > retrieving revision 1.32
> > diff -u -r1.32 head.S
> > --- head.S      1999/08/31 19:25:23     1.32
> > +++ head.S      1999/09/30 22:43:03
> 
> I would prefer to do this somewhere after the kernel is loaded, in C,
> surrounded
> by a pair of printks, so we know whether it is this that hangs the machine.

Agreed...I'll do that....thanks!

grant


Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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FYI - Alex noticed his tree was recursively building vmlinux because
init_task_union tests weren't working right. Turned out he was picking
up the HP-UX "nm" instead of GNU nm.

Lesson: check $PATH - order matters.

grant


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From: Alex deVries <adevries@thepuffingroup.com>
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Grant Grundler wrote:
> 
> FYI - Alex noticed his tree was recursively building vmlinux because
> init_task_union tests weren't working right. Turned out he was picking
> up the HP-UX "nm" instead of GNU nm.
> 


I've actually fixed this by committing a bit of code that checks to make
sure that you're using GNU nm :)

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Jeffrey A Law <law@cygnus.com>
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Subject: Re: [parisc-linux] commit FP coproc enable code?
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  In message <199910012052.NAA13364@milano.cup.hp.com>you write:

  > > Why is not using PDC_COPROC not the right way ?
  > > It should do exactly the same
  > > thing, modulo machines without FPU (for which we do not provide emulation
  > > anyway) and firmware bugs ...
  > 
  > You are right.
  > But I'm lazy and I don't care right now about machines older than PA 1.1.
  > Someone who cares about PA 1.0 can implement that.
I would recommend ignoring PA1.0 -- the only machines with PA1.0 processors
are radically different than the machines y'all are targeting.  The effort
would be spent on PA2.0 :-)


jeff



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From: Philipp Rumpf <prumpf@suse.de>
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Subject: [parisc-linux] my tree (Oct 03)
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Okay, most of my changes went into the cvs tree today, you can get the rest
at ftp://sunsite.auc.dk/pub/os/linux/parisc/patch-prumpf-19991003.gz 

Changes:

Makefile
	Conditionalize compiling GSC in as we do for other busses

arch/parisc/config.in
arch/parisc/defconfig
	New configuration menus.  Those seem much more logical to me

arch/parisc/kernel/Makefile
	updated to reflect removed/added files

arch/parisc/kernel/drivers.c
arch/parisc/kernel/inventory.c
	not yet in my tree (will be added as soon as I had a look at it)

arch/parisc/kernel/pci.c
include/asm-parisc/pci.h
	this is my version, not grant's that is in the CVS tree

arch/parisc/kernel/pdc.c
arch/parisc/kernel/real.S
include/asm-parisc/real.h
	new mechanism to call code in real-mode.  this doesn't work for some
	calls right now

include/asm-parisc/semaphore.h
include/asm-parisc/semaphore-helper.h
	almost correct semaphore operations

arch/parisc/kernel/setup.c
	removed CVS log (way too long and nobody would have read it anyway)
	removed old functions which I didn't like anyway
	removed get_cpuinfo as it isn't done the right way
	removed frame buffer code (I really hope it doesn't have to be done
		the way it was)

arch/parisc/kernel/traps.c
	clean-up

drivers/block/rd.c
	removed lots of printks

drivers/char/serial.c
	this is my original version, I haven't looked at the modifications
	close enough yet.
	
drivers/gecko/dino-prumpf.c
drivers/gecko/lasi-prumpf.c
	these are my versions, Lasi might be merged, Dino will probably not

drivers/gecko/gecko.c
	much of this code will disappear soon
	more GSC support functions

init/main.c
	most of my changes will go away



	Philipp Rumpf


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Subject: [parisc-linux] PCI bus walking!
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The kernel tree in CVS now has PCI code sort of working, so it can scan
the PCI bus on a Dino and find devices.  It's still broken in several
ways: it 
doesn't support multiple dino's, it can't handle interrupts yet, and is
basically doing things in the wrong order, but does work.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] PCI bus walking!
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Alex deVries wrote:
> 
> The kernel tree in CVS now has PCI code sort of working, so it can scan
> the PCI bus on a Dino and find devices.  It's still broken in several
> ways: it doesn't support multiple dino's, it can't handle interrupts yet,
> and is basically doing things in the wrong order, but does work.

Alex,
This is awesome! Kudos!

I can fix all of those things. Can you tell me:
o what's broken about multi-Dino support
o What you think is wrong with interrupts?
  (I assume registration isn't working as dino_interrupt() is simple)
o What's the order you are seeing and what order shoulds it be.

Kudos again!
grant

ps. Kudos to Philipp too for yesterdays code drop!


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I've fixed up a couple of things in the kernel:

- PCI bus walking happens in the *right place*, pci_init().

- I've fixed the inventory code to handle hversion_rev and sversion_rev

- Multiple Dinos are detected properly now

- Card Mode Dino now seems to work for bus walking, the MMIO is a whole
different story.

As a test, I packed in:
- a Symbios SCSI controller PCI card
- a GSC gigabit ethernet card (which uses a dino)
- another GSC gigabit ethernet card (which uses a dino)

(and if you're curious as to how I can pack three cards in an A class,
you'll have to visit Ottawa to see)

The output I get is:
Dino version 3.1 (bridge mode) found at
0xfff80000                              
Dino version 3.0/3.1 (card mode) found at
0xfff84000                            
Found a PCI device, and the vendor is 0x107e, device
0x3                        
Dino version 3.0/3.1 (card mode) found at
0xfff88000                            
Found a PCI device, and the vendor is 0x12ae, device
0x1                        
PCI: Probing PCI
hardware                                                       
Found a PCI device, and the vendor is 0x104b, device
0x8130                     
Found a PCI device, and the vendor is 0x1011, device
0x19                       

So the first PCI device found is an "Interphase" gigE thing that's not
in the PCI database, the second is an Alteon Acenic gigE, the third is
the Symbios SCSI card, and the last is the onboard DEC tulip.

- Alex


-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Alex - this is really cool.

Alex deVries wrote:
> 
> 
> I've fixed up a couple of things in the kernel:
> 
> - PCI bus walking happens in the *right place*, pci_init().

Ok. Were you able to salvage what I had submitted then?
I was under the impression pci_init() wouldn't work. Registration of
the pci_bus_ops for each Dino looked like a problem.

Oh. I think I got it.  Each dino registers pci_bus_ops when it's
"discovered" and pci_init() is called later...is that right?
(I'll be looking at the code anyway...may not have to answer)

> - I've fixed the inventory code to handle hversion_rev and sversion_rev
> - Multiple Dinos are detected properly now
> - Card Mode Dino now seems to work for bus walking, the MMIO is a whole
> different story.

I'll start reviewing card-mode Dino initialization and see what we can
do for MMIO. I have to understand more about what the "right" thing for
linux is WRT I/O address management. This has to take place sometime
between when card-mode Dino is "discovered" and when PCI bus walk completes.
(So we know how much space is needed.)

What about interrupts?
Is alloc_irq() handing virtual IRQ's back to the PCI drivers for the
respective dino irq_region?
I'm curios if/how it is supposed to work and might take a peek at this
as well. Once this works, the box should be able to send mail - that's
a key milestone for HP folks..

cheers,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Alex,
First cut review notes on the v1.17 dino.c:

o card-mode is only supported by dino 3.x.
  Only need to look for card-mode which is 3.0 or better.
  Look for DINO_MEM_DATA in the Dino ERS.
  I know for a fact none were shipped and no HP-UX drivers
  were shipped to support it either.

o "struct hp_driver" is not named very well. Needed more beer? :^)
  I'd like to suggest "struct pa_iodc_driver" or something like that.

o I'm not sure any systems were shipped with 2.0 built-in dino.
  Anybody know? What about 2.1's?
  I don't expect numbers to be posted here - just the existence.

o I see my long-ass comment about broken dino versions has been removed.
  Was it intentionally removed?
  (It's ok...I wrote it because I thought it was either useful or
  interesting depending on why anyone bothers reading the code).

o "struct dino_version_mapping" doesn't appear to be used.
  Can this go?

o FYI: "ifdef USE_PCI_INTR_OPS" stuff is mine.
  I want to save it for some experiments on interrupt path latency.
  May be able to run those by the end of this month at this pace.

o I'd like to move the card-mode initialization into a seperate
  routine. Makes the common initialization easier to read.
  I can already see some stuff is missing too.

o Before generic PCI  bus walk occurs card-mode dino support must
  program PCI_INTERRUPT_LINE of each PCI device below it.
  Firmware does this for PCI devices below built-in Dino.
  For now, this can be a simple none-recursive bus walk since
  very few people will have the card-mode expansion chassis (which
  uses PCI-PCI bridges).
  
  I'll take care of it this week but just wanted it noted in case
  anyone wonders why card-mode interrupts don't work now.

o is_buildtin_dino(). Typo and it's not needed right now.

o 0x05d. Need the workaround to eventually support J2240 firmware bug.
  This was included in the macros I had posted previously.
  Can just add another HPHW_BRIDGE entry instead.


That's enough for now....time to get some sleep.

later,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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I've cleaned up dino.c sufficiently that tulips are detected, although
somewhat broken still:

  The PCI BIOS has not enabled this device!  Updating PCI command
1011->1015.   
tulip.c:v0.89H 5/23/98
becker@cesdis.gsfc.nasa.gov                              
eth0: Digital DS21140 Tulip at 0x82223800, EEPROM not present, 00 4c 69
6e 75 7.
eth0: Old style EEPROM -- no media selection
information.                       
  PCI latency timer (CFLT) is unreasonably low at 0.  Setting to 64
clocks.     
  The PCI BIOS has not enabled this device!  Updating PCI command
1011->1015.   
eth1: Digital DS21142/3 Tulip at 0xff00, EEPROM not present, 00 4c 69 6e
75 7a,.
eth1: Old style EEPROM -- no media selection
information.                       
  PCI latency timer (CFLT) is unreasonably low at 0.  Setting to 64
clocks.     

Two things to note here:
- I'm not running pcibios_fixup (or whatever) yet, haven't figured out
what this is supposed to do
- in tulip.c, there's really only one addition having to do with EEPROM
detection, and I think I've messed that up.  The MACs shown are
incorrect.

We're getting to the point where most PCI devices will start to be
detected.

- Alex
-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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On Sun, Oct 03, 1999 at 10:12:17PM -0500, Linas Vepstas wrote:
> I've been porting the kernel to the ESA/390 architecture (mainframe)
> and have had the occasion to rethink the subroutine linkage.  In particular,
> I have some weak reasons to want the stack to grow up, not down.  However,
> the unix tradition & linux in particular usually have the stack grow down.
> So the questions:
> 
> -- is it a bad idea to make the stack grow up? 
> -- has anyone done this before w/ linux? (doesn't seem like it ...)

Some people are doing this right now with Linux/PARISC.  The only thing
which affected me was in fs/binfmt_*.c where we tamper with the argc
/ envp.  Alan tells me the mklinux people have sorted this one properly,
but I haven't looked yet.  There are probably other places where there are
problems.  Philipp?

> -- should I do this, or should I stick to the traditional design?

It's something which we need to fix for PARISC, so I think you should
do it too :-)

> -- I'm making the following mods, will these be sufficient?
>    Are they appropriate?
>    o  the expand_stack() inline in include/linux/mm.h assumes the
>       stack grows down, & I will rework it to suit my needs ...
>    o  change VM_STACK_FLAGS to grow up as well ...
>    o  create a new vma that holds the stack base, out in high-memory,
>       somewhere near TASK_SIZE - current->rlim[RLIMIT_STACK].rlim_cur


-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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> I've cleaned up dino.c sufficiently that tulips are detected, although
> somewhat broken still:
> 
>   The PCI BIOS has not enabled this device!  Updating PCI command
> 1011->1015.   

That is reaosnably expected. The various control bits arent enabled by the
PA firmware

>   PCI latency timer (CFLT) is unreasonably low at 0.  Setting to 64
> clocks.     

And this is also a register where the PCI BIOS would have done the work
on a PC. That looks fine.


> - in tulip.c, there's really only one addition having to do with EEPROM
> detection, and I think I've messed that up.  The MACs shown are
> incorrect.
> 
> We're getting to the point where most PCI devices will start to be
> detected.

Wheee


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Grant Grundler wrote:
> Alex deVries wrote:
> > I've fixed up a couple of things in the kernel:
> > - PCI bus walking happens in the *right place*, pci_init().
> 
> Ok. Were you able to salvage what I had submitted then?
> I was under the impression pci_init() wouldn't work. Registration of
> the pci_bus_ops for each Dino looked like a problem.

Yeah, I definitely re-used a lot of existing work. I got pci_init() to
work properly.

> Oh. I think I got it.  Each dino registers pci_bus_ops when it's
> "discovered" and pci_init() is called later...is that right?

Yeah, although if I understand the kernel code properly, the first PCI
bus scan is done from within pci_init().  All the others are called when
the others are detected.  Right now the dino_init() call is in the wrong
place.

> I'll start reviewing card-mode Dino initialization and see what we can
> do for MMIO. I have to understand more about what the "right" thing for
> linux is WRT I/O address management. This has to take place sometime
> between when card-mode Dino is "discovered" and when PCI bus walk completes.
> (So we know how much space is needed.)

Can we gather a memory IO map based on what we find in the inventory
code with the mem_map() PDC calls?

> What about interrupts?
> Is alloc_irq() handing virtual IRQ's back to the PCI drivers for the
> respective dino irq_region?
> I'm curios if/how it is supposed to work and might take a peek at this
> as well. Once this works, the box should be able to send mail - that's
> a key milestone for HP folks..

I really havent' looked at interrupts at all yet in PCI, so please, have
a look at it.

About sending mail: that'd require actually running a userland program
(unless you want to embed something like elm or emacs into the kernel),
and I'm not sure how close we are to that.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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Grant Grundler wrote:
> First cut review notes on the v1.17 dino.c:
> 
> o card-mode is only supported by dino 3.x.
>   Only need to look for card-mode which is 3.0 or better.
>   Look for DINO_MEM_DATA in the Dino ERS.
>   I know for a fact none were shipped and no HP-UX drivers
>   were shipped to support it either.

Ah, okay.  This is info that's not in the docs. 

> o "struct hp_driver" is not named very well. Needed more beer? :^)
>   I'd like to suggest "struct pa_iodc_driver" or something like that.

I agree.

> o I'm not sure any systems were shipped with 2.0 built-in dino.
>   Anybody know? What about 2.1's?
>   I don't expect numbers to be posted here - just the existence.

I'd say just leave those config lines in for now.

> o I see my long-ass comment about broken dino versions has been removed.
>   Was it intentionally removed?
>   (It's ok...I wrote it because I thought it was either useful or
>   interesting depending on why anyone bothers reading the code).

That's now been moved to README.dino

> 
> o "struct dino_version_mapping" doesn't appear to be used.
>   Can this go?

Yes!

> o FYI: "ifdef USE_PCI_INTR_OPS" stuff is mine.
>   I want to save it for some experiments on interrupt path latency.
>   May be able to run those by the end of this month at this pace.

Sounds good.

> o I'd like to move the card-mode initialization into a seperate
>   routine. Makes the common initialization easier to read.
>   I can already see some stuff is missing too.

That's a good plan.  I simply stole the config stuff out of the Dino
docs' example, and it worked, I never actually figured out what it
should be. I'm still stunned that it worked.

> o Before generic PCI  bus walk occurs card-mode dino support must
>   program PCI_INTERRUPT_LINE of each PCI device below it.
>   Firmware does this for PCI devices below built-in Dino.
>   For now, this can be a simple none-recursive bus walk since
>   very few people will have the card-mode expansion chassis (which
>   uses PCI-PCI bridges).
>   I'll take care of it this week but just wanted it noted in case
>   anyone wonders why card-mode interrupts don't work now.

Sounds good.

> o is_buildtin_dino(). Typo and it's not needed right now.

That should probably be removed then.

> o 0x05d. Need the workaround to eventually support J2240 firmware bug.
>   This was included in the macros I had posted previously.
>   Can just add another HPHW_BRIDGE entry instead.

That's a good idea.

Grant, I'll leave it to you to commit these changes.

- Alex

-- 
Alex deVries
Vice President of Engineering
The Puffin Group


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I am interested in this project and I could help by testing things on my
machine.

FYI:-

I have just acquired a 712/80 HP machine.
It is running HPUX 9.07 at the moment.
The initial boot ROM screen says ROM v1.5 and 32MB RAM.

I managed to netboot Image-19990930 but it failed with the
message "In swapper task - not syncing".  This occurred quite a way into the
kernel.  (I did not save output from the kernel as I do not have a serial
console setup yet).

The kernel appeared to only detect 16MB of RAM.

I downloaded the Intel egcs cross compiler and binutils RPMs and installed
them, but have only had limited success compiling so far.

I downloaded the latest (at the time) kernel tarball (about 30 september).

I got a linker message about $global$ undefined which I traced back to
arch/parisc/kernel/pdc.c.  (Cross compiling from Intel Linux).

Some Questions:-

I managed to build an ELF kernel on my Intel machine.  I built the ipl
program under HPUX v9.07 and obviously I came across the message about ELF
kernels not supported that the ipl program prints out when I tried to boot
it.

I notice in the source code that it says ELF loading is not supported yet
but it doesn't matter because the cross compiler utilities that produce ELF
executables don't work yet.  Is this (still) true?  
In all the docs on the puffin web site HPUX 10 and 11 are referred to but
nothing as old as 9!
Is it possible to build a bootable kernel on either Intel Linux or HPUX
v9.07?

Does the kernel work with a serial console if I was to set it in the BOOT
ROM to use the console on a serial port.

Thanks for your patience with what are conceivably obvious questions.

>From Tom
 


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 I have a 725/50 ( or something like that ) and I am really interested in doing
 some work on the hppa, perhaps not the kernel, but some driver would be ok.

 However I do not have HP-UX, so I want to setup the HP, as a linux workstation
 as a firts step, it seems that there is a booting kernel, but I haven't seen
 anyone boot a shell och mount a filesystem, am I of the correct oppinion to
 assume that the kernel have not yet reached this point ??

 / best regards, lars segerlund.



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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Subject: [parisc-linux] Systems 99
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I've been requested to attend Systems 99 in Munich by HP Germany.
Unfortunately, due to leaving GeneData soon to work for The Puffin Group,
I don't have any holiday left to do this.  Would anyone be able to get
to Systems 99, even for just some of the days?

It's October 18th to 22nd (Monday to Friday), and if it's even half as
much fun as LinuxTag was, it's definitely worth doing.  Please email me
if you're interested.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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Subject: Re: [parisc-linux] Status Query .
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Lars Segerlund wrote:

>  I have a 725/50 ( or something like that ) and I am really interested in doing
>  some work on the hppa, perhaps not the kernel, but some driver would be ok.
>
>  However I do not have HP-UX, so I want to setup the HP, as a linux workstation
>  as a firts step, it seems that there is a booting kernel, but I haven't seen
>  anyone boot a shell och mount a filesystem, am I of the correct oppinion to
>  assume that the kernel have not yet reached this point ??

I think so, you still need HPUX or a cross development system to make something
usefull.

>
>
>  / best regards, lars segerlund.
>
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

I have the same machine with HPUX installed. I have not testet the kernel on it
yet, but I think I will wait a little longer
until I join in. So how is the status of the kernel for this machine type ?
Is it worth starting work on this hardware yet ?

Cheers                H.-J. Bergmann
--
Dr. Hans-Jrgen Bergmann                    e-mail: hbergman@acm.org
BGS Systemplanung AG - Robert Koch Str. 41 - D-55129 Mainz - Germany
Phone +49 6131 914152 - Fax +49 6131 914400



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At 09:31 99-10-05 +0200, you wrote:
>
> I have a 725/50 ( or something like that ) and I am really interested in doing
> some work on the hppa, perhaps not the kernel, but some driver would be ok.
>
> However I do not have HP-UX, so I want to setup the HP, as a linux workstation
> as a firts step, it seems that there is a booting kernel, but I haven't seen
> anyone boot a shell och mount a filesystem, am I of the correct oppinion to
> assume that the kernel have not yet reached this point ??
>

You are correct. What I'd suggest, is to go to:
http://www.software.hp.com/Y2K-upgrades/upgrade_request.html
and get Yourself 10.20 for the cost of shiping. Grab it while it lasts. Then
find someone with a Linux box and beg/steal/borrow it. Around here You can
get a Linuxable 486 for a U$80, Pentium (low) for U$180-200. So You may even
buy one... I know a code/compile/debug cycle can use a fast machine, but
with a bit of discipline one can make do with a slow, too...

> / best regards, lars segerlund.
>


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From: Steve Ball <hamster@arctic.nmt.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Out of the loop....
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Wheeee so its been a while since i've done any work on these HP machines
here.. I tried unsucessfully to boot a kernel back in July, and today I
decided to try it again.  Put rbootd on my linux box, and booted the 09-30
image I got from puffin on my system.

Its an HP apollo Series 700, which boils down to a model 730 (King
Cobra) 66mhz machine with 64 megs of mem.

The bootloader seems to boot ok, it hangs at transferring control to the
kernel, entry point 0x00010000 (earlier versions of the kernel made it all
the way to the rotating cursor) and I get a hex A7 on the LED
indicators...

Anyway, hoping maybe this will help someone!  I'm more than happy to try
anything out on these machines as they are doing absolutly nothing right
now but sitting here.

Have fun! 

----------------------******-------------------
Steve Ball
NMT EE Department System and Network Admistrator

C/S 3392	  	 |	Remember,
Socorro, NM 87801	 |	amateurs built the ark.
hamster@arctic.nmt.edu	 |      Professionals built the
www.ee.nmt.edu/~hamster	 |	Titanic.

'64 Wag 230 OHC/27-4.10/44-4.09/20/T-90/4dr/4wd
"Water covers 75% of the earth.... Jeeps cover the rest."
----------------------******-------------------




From - Thu Nov 08 21:16:10 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Dino developments...
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Hi all,
I've committed changes to the following files:

  linux/arch/parisc/kernel/drivers.c
  linux/arch/parisc/kernel/inventory.c
  linux/arch/parisc/kernel/pci.c
  linux/drivers/gecko/dino.c
  linux/drivers/gecko/gecko.c
  linux/include/asm-parisc/pci.h
  linux/init/main.c

Both Card-mode and Built-in now get walked and devices are discovered.

outb/inb stuff probably isn't working because it doesn't call
dino_in/out functions yet. I've made changes to dino_in/out
functions and that's the *only* way a PCI driver can talk to a PCI
device for card-mode implementations. But Alex is eager to
get the built-in 100BT working and will hack at this some more...


> o Before generic PCI  bus walk occurs card-mode dino support must
>   program PCI_INTERRUPT_LINE of each PCI device below it.
>   Firmware does this for PCI devices below built-in Dino.
>   For now, this can be a simple none-recursive bus walk since
>   very few people will have the card-mode expansion chassis (which
>   uses PCI-PCI bridges).
>   I'll take care of it this week but just wanted it noted in case
>   anyone wonders why card-mode interrupts don't work now.

This issue is still outstanding too.

Requires code be added to pcibios_fixup_bus() and applies to both
built-in and card-mode Dino busses. So PCI line interrupts won't work
until this is fixed or the driver is temporarily kluged to hardcode
the virtual IRQ number.

Where is the tree now?

The kernel is data page faulting on both 715 and A-class with:

...
VFS: Mounted root (ext2 filesystem).
Warning: unable to open an initial console.
It's for the PA-RISC!
It's executable!
It has an appropriate version!
The checksum checks out!
Well, it *smells* like a valid SOM executable
interrupted with code 15, regs c00749ec
 IAOQ: c003fa10 c003fa14
 ior 20000028

PSW  : 0006ff0b  GR 1 : c010a800  GR 2 : c003ff50  GR 3 : 20000000  
GR 4 : 00000002  GR 5 : 00000005  GR 6 : 20000024  GR 7 : 20000018  
GR 8 : 20000000  GR 9 : c00747c0  GR10 : c00746c0  GR11 : 0000000a  
GR12 : ffffffff  GR13 : fdffffff  GR14 : 000000fd  GR15 : f0100000  
GR16 : f00008e8  GR17 : f000009c  GR18 : 00000020  GR19 : 00000018  
GR20 : 0000000c  GR21 : c0074000  GR22 : 20100000  GR23 : c0074000  
GR24 : c0074740  GR25 : c01810e0  GR26 : c0074488  GR27 : c0070000  
GR28 : 20000000  GR29 : 000000f5  GR30 : c0074b40  GR31 : c0024320  
SR0  : 00000000  SR1  : 00000000  SR2  : 00000000  SR3  : 00000000  
SR4  : 00000000  SR5  : 00000000  SR6  : 00000000  SR7  : 00000000  
IAOQ : c003fa10 c003fa14
SHR 1: 50000800  SHR 8: 00000008  SHR 9: c00d0000  SHR16: c00749ec  
SHR17: f000009c  SHR24: ffffffff  SHR25: 00000001  
d_p_f c00749ec 0000000f 20000028
returning c00749ec
...


IAOQ:
0xc003fa10?i
create_som_tables+60:           STWS,MB         r8,4(r6)

GR2:
0xc003ff50?i
load_som_binary+240:            STW             r28,256(r7)


grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Steven Pritchard <steve@silug.org>
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Subject: Re: [parisc-linux] compiling on a 735?
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Simen Thoresen said:
[...]
> I've installed the 
> egcs, flex and make depots (the bash-depot seems to be non-
> existent, so I've compiled and installed it from gnu.org myself.

I couldn't figure this comment out when I first read it, but today I
finally noticed that the permissions on the 10.20 bash depot file were
wrong.  (Darn umask.)

It's fixed now.  Sorry about that.

Steve
-- 
steve@silug.org           | Linux Users of Central Illinois
(217)698-1694             | Meetings the 4th Tuesday of every month
Steven Pritchard          | http://www.luci.org/ for more info


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I'm thinking that as we receive a fair amount of e-mail similar to this,
we'll be adding a section to the project pages cataloging the availability
of older hardware. 

---------- Forwarded message ----------
Date: Thu, 07 Oct 1999 21:47:26 +0200
From: Christoph Viethen <cv@kawo2.rwth-aachen.de>
To: cjbeard@thepuffingroup.com
Subject: PA-RISC Linux project

Hi there,

first of all, a little bit of background info. I'm studying
computer science at Aachen University, Germany, and at the
CS building they had a little pool of HP-UX machines. As far as
I know those were HP9000/720 machines --- rather slow and old,
but as far as I know those have a HP-PA CPU, right?

So now my University is trying to get rid of those machines,
together with the monitors, 13 computers altogether. Basically,
their attitude is: If nobody buys them, they'll have them
transported to the next garbage dump...

So I was considering buying one or two of them, because they will
be pretty cheap, and I was wondering whether there is an
alternative operating system for them, like Linux. So that's
how I found the http://thepuffingroup.com/parisc/ web page ...
Even if they won't work with Linux yet ... well, they're nice
X Terminals. Okay, a bit loud and energy-hungry may be, but I
can live with that.

But after seeing your web page, I also wonder: Can your project
make use of such machines? And if so, are there project members
in Germany who might be willing to get in touch with my University
and buy some?

Let me know ...

Best wishes,

  Christoph

-- 
 cv@kawo2.rwth-aachen.de



From - Thu Nov 08 21:16:10 2018
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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] unresolved symbol pci_proc_init
Date: Mon, 11 Oct 1999 04:27:14 -0700 (PDT)
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Hi all,

compiling the current CVS kernel for a non-PCI machine
like my 715/33 leads to an unresolved symbol message
for pci_proc_init.

In init/main.c is the following code:

#ifdef CONFIG_GECKO
        gsc_init();
        /*
        ** pci_init() is NOT multi-PCI bus friendly.
        */
#ifdef CONFIG_PROC_FS
        pci_proc_init();
#endif
#else
#ifdef CONFIG_PCI
        pci_init();
#endif
#endif

So pci_proc_init is included even if CONFIG_PCI is not
set.

Ulrich
__________________________________________________
Do You Yahoo!?
Bid and sell for free at http://auctions.yahoo.com


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From: "William M. Brack" <wbrack@mmm.com.hk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] compiler "crash" on setup.c
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Xref: news.gmane.org gmane.linux.ports.parisc:10018

After following (more or less) the very helpful "recipe" by Grant Grundler,
including downloading the latest CVS kernel, I got quite a ways in
generating a Linux system (using an HPUX 10.20 E35 system) which I plan to
try to boot on an E25 system.  There was, however, one problem while doing
the "make vmlinux".  The egcs gcc compiler "crashed" while compiling
arch/kernel/setup.c, with the following:-

$
gcc -D__KERNEL__ -I/linux/linux/include -Wall -Wstrict-prototypes -O2 -fomit
-frame-pointer
 -mdisable-fpregs -fwritable-strings -fno-strict-aliasing -pipe -fno-strengt
h-reduce -c -o setup.o setup.c
setup.c:607: warning: `PA' redefined
(void *)((unsigned long)()&~0xc0000000)
  ! */@ igned long sversion );

II@7 @
 nclud@^1@@p"
L_VARARGS_H @"P
 unsigned long hp700fb_init(unsigned long mem_start)

(followed by voluminous lines of junk ....)
and terminated by a "Signal 11" message.  Now, I know about the infamous
"Signal 11 message" for gcc, and the fact that it is usually an indication
of memory or hardware failure, but in this instance it was very consistent
in that it failed at the same spot with the same warning on several retries.

Since it appeared that the #define'd macro PA was not actually used within
the program setup.c, I just removed it.  Once this was done, the compilation
was successful.

I would appreciate any comments as to the cause, and whether the removal of
this macro will get me into some other trouble later.

Thanks,

Bill Brack
Hong Kong


From - Thu Nov 08 21:16:10 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] unresolved symbol pci_proc_init
Date: Mon, 11 Oct 1999 10:08:50 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:10019

Ulrich Strelow wrote:
> Hi all,
> 
> compiling the current CVS kernel for a non-PCI machine
> like my 715/33 leads to an unresolved symbol message
> for pci_proc_init.
> 
> In init/main.c is the following code:
> 
> #ifdef CONFIG_GECKO
>         gsc_init();
>         /*
>         ** pci_init() is NOT multi-PCI bus friendly.
>         */
> #ifdef CONFIG_PROC_FS
>         pci_proc_init();
> #endif
> #else
> #ifdef CONFIG_PCI
>         pci_init();
> #endif
> #endif
> 
> So pci_proc_init is included even if CONFIG_PCI is not
> set.

Ulrich,
Apologies - that's my fault. I wasn't very clean when changing the ifdefs
to invoke gsc_init(). The ifdef should read:

	#if defined(CONFIG_PCI) && defined(CONFIG_PROC_FS)
...

If no one else objects, go ahead and submit that - after you try it. :^)

On the same note, the ifdefs in gsc_init() probably need to
use "defined(CONFIG_PCI)" around the "dino_init()" call...

sorry,
grant

> Ulrich
> __________________________________________________
> Do You Yahoo!?
> Bid and sell for free at http://auctions.yahoo.com
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


From - Thu Nov 08 21:16:10 2018
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Start sash ...
Date: Sat, 16 Oct 1999 12:46:56 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:10020

Ok, after hacking half of the night and cursing about a totally fucked
up ffz(), I finally got something (see below). I did some dirty hacks
to get it so far. 

There is something wrong with user page mappings. It looks like brk()
memory is read only mapped. After digging a little bit, I decided to 
workaround this, by mapping every page read/write/execute (dirty hack #1).

The serial port doesn't seem to generate interrupts. So I had to hack the
serial output routine by printing via printk (dirty hack #2):

And sash really doesn't like garbage in argv[], so I cleaned argv before
execve of sash alias init (not so dirty hack #3).

I'll dig into the serial interrupt problem later, since this holds me
back from being setup up for Systems.

Thomas.

---- Starting sash ... -------------------------------------------------

Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Network Station Address 001083-03194b
System IP Address 193.175.24.80
Server IP Address 193.175.24.67

Boot IO Dependent Code (IODC) revision 2


SOFT Booted.

------------------------------------------------------------------------------

PARISC/Linux Bootstrap Version 0.6 (non-interactive)
By Helge Deller & Jason Eckhardt
Built Sat Oct 16 03:23:41 METDST 1999 by tsbogend@parisc

Reading parameters...done.

Loading PA-RISC/Linux Kernel...
No ramdisks available.
SOM-Kernel:
aux_header_location: 00000080
som       : 00200080
exec_dfile: 000B1000
exec_dsize: 0007F000
exec_dmem : C0088000
exec_tfile: 00039000
exec_tsize: 00077008
exec_tmem : C0010000
Code at 0x00010000, size=0x00077008
Data at 0x00088000, size=0x0007F000
BSS  at 0x00107000.

Transferring control to kernel. (At entry point 0x00010000)
The Kernel has started...
FP CCR was 0xc0, will be set to 0xc0
Model: Staccato L2 180 (A Class 180) with 768 MB RAM.
CPU(s): 1 x PA7300LC (PCX-L2, Velociraptor) at 180.000000 MHz
Kernel-stack at C008A000, Size 8192 kB.
Available virtual mapped memory starts at 0xC01355C0 and ends at 0xF0000000.
Searching for devices in PDC firmware... a newer box...
Found devices:
0. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0, 0x0, 0x0, 0x0
1. Phantom PseudoBC GSC+ Port (7) at 0xffc01000, versions 0x505, 0x0, 0x0, 0x0, 0x0
2. HP HSC-PCI Cards (4) at 0xfff84000, versions 0x4, 0x0, 0x9d, 0x0, 0x80
3. Staccato L2 180 (A Class 180) (0) at 0xfffbe000, versions 0x516, 0x0, 0x4, 0x0, 0x81
4. Staccato L2 180 Memory (1) at 0xfffbf000, versions 0x8b, 0x0, 0x9, 0x0, 0x0
5. Staccato 180 Lasi (11) at 0xffd00000, versions 0x5f, 0x0, 0x81, 0x0, 0x0
6. Staccato 180 Core LAN RS-232 (10) at 0xffd05000, versions 0x5f, 0x0, 0x8c, 0x0, 0x0
7. Staccato 180 Core SCSI (10) at 0xffd06000, versions 0x5f, 0x0, 0x82, 0x0, 0x0
8. Dino PCI Bridge (13) at 0xfff80000, versions 0x680, 0x3, 0xa, 0x0, 0x0
That's a total of 9 devices.
Linux version 2.2.12 (tsbogend@parisc) (gcc version egcs-2.91.66 19990314 (egcs-1.1.2 release)) #88
 Sat Oct 16 12:33:36 METDST 1999
initrd: c008e000-c00e5800
command_line: /stand/vmlinux HOME=/ console=ttyS0 TERM=LINUX initrd=0

free_area_init: c013e000 c2000000
mem_map=c013e000
Calibrating delay loop... 239.86 BogoMIPS
Memory: 14788k available (476k kernel code, 1056k data, 64k init) [c0000000,c1000000]
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
Interrupt  3( 3+ 0)
Starting lasi serial at 0xffd05000
ttyS00 at port 0xffd05800 (irq = 261) is a 16450
Dino version 3.x (card mode) found at 0xfff84000
Scanning PCI bus 0
Found a PCI device, and the vendor is 0x1011, device 0x0009
Found a PCI device, and the vendor is 0x1011, device 0x0009
dino_fixup_bus(0xc019b0a0) bus 0 sysdata 0xc019a0e0
Scan for bus 0 returned 0
Dino version 3.1 (bridge mode) found at 0xfff80000
Scanning PCI bus 1
Found a PCI device, and the vendor is 0x1011, device 0x0019
dino_fixup_bus(0xc019b120) bus 1 sysdata 0xc019a1a0
Scan for bus 1 returned 1
**** NOW SWITCHED TO SERIAL CONSOLE ! ****
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
Starting kswapd v 1.2 
Serial driver version 4.90 (1999-09-22) with no serial options enabled
pty: 256 Unix98 ptys configured
rd_init
RAM disk driver initialized:  16 RAM disks of 4096K size
initrd_load
rd_load_image
opening initrd
identify_ramdisk_image
ext2sb->s_magic: 000053ef
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 350 blocks [1 disk] into ram disk... |/-\|/-\|/-\|/-\|/-\|/done.
initrd_release
VFS: Mounted root (ext2 filesystem).
stat c0104794 type 0
fd 0 opened
It's for the PA-RISC!
It's executable!
It has an appropriate version!
The checksum checks out!
Well, it *smells* like a valid SOM executable
(start_brk) 40017000
(end_code) 0003c000
(start_code) 00001000
(end_data) 40008000
(start_stack) 2000002c
(brk) 40017000
Stand-alone shell (version 2.1)> 



-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


From - Thu Nov 08 21:16:10 2018
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Start sash ...
Date: Sat, 16 Oct 1999 22:12:53 +0200
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In-Reply-To: <19991016124656.A811@alpha.franken.de>; from Thomas Bogendoerfer on Sat, Oct 16, 1999 at 12:46:56PM +0200
Xref: news.gmane.org gmane.linux.ports.parisc:10021

On Sat, Oct 16, 1999 at 12:46:56PM +0200, Thomas Bogendoerfer wrote:
> Well, it *smells* like a valid SOM executable
> (start_brk) 40017000
> (end_code) 0003c000
> (start_code) 00001000
> (end_data) 40008000
> (start_stack) 2000002c
> (brk) 40017000
> Stand-alone shell (version 2.1)> 

(start_stack) 2000002c
(brk) 40017000
Stand-alone shell (version 2.1)
> help
alias      [name [command]]
cd         [dirname]
-chgrp     gid filename ...
-chmod     mode filename ...
-chown     uid filename ...
-cmp       filename1 filename2
-cp        srcname ... destname
-dd        if=name of=name [bs=n] [count=n] [skip=n] [seek=n]
-echo      [args] ...
-ed        [filename]
exec       filename [args]
exit       
-grep      [-in] word filename ...
help       [word]
-kill      [-sig] pid ...
-ln        [-s] srcname ... destname
-ls        [-lid] filename ...
-mkdir     dirname ...
-mknod     filename type major minor
-more      filename ...
-mount     [-t type] [-r] [-m] devname dirname
-mv        srcname ... destname
-printenv  [name]
prompt     string
-pwd       
quit       
-rm        filename ...
-rmdir     dirname ...
setenv     name value
source     filename
-sync      
-tar       [xtv]f devname filename ...
-touch     filename ...
umask      [mask]
-umount    filename
unalias    name
-where     program
> -pwd
/
> 


Serial Interrupts are definitly not working. I'm now running the uart in 
polling mode and I had to force use 16550A mode. Below is a patchset of my
hacks.  You need a fixed posix_types.h and bitops.h, too. I haven't tested 
the cvs version, yet.

Thomas.

PS: I'll be next week at Systems in Munich. You can find me at the Linuxpark 
HP booth (hall A3, No. 404-22) during the whole week.

Index: arch/parisc/mm/fault.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/mm/fault.c,v
retrieving revision 1.11
diff -u -r1.11 fault.c
--- arch/parisc/mm/fault.c	1999/10/14 21:08:36	1.11
+++ arch/parisc/mm/fault.c	1999/10/16 20:06:43
@@ -206,6 +208,7 @@
 	}
 
 	prot = translate_pte(*ptep);
+	prot |= 0x03000000;
 
 	pa = (pte_val(*ptep)&~4095);
 
Index: drivers/char/serial.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/char/serial.c,v
retrieving revision 1.7
diff -u -r1.7 serial.c
--- drivers/char/serial.c	1999/10/15 19:30:30	1.7
+++ drivers/char/serial.c	1999/10/16 20:06:43
@@ -1175,6 +1175,8 @@
 		goto errout;
 	}
 
+	state->type = PORT_16550A; /* no idea why type is 0 at this point */
+
 	if (!CONFIGURED_SERIAL_PORT(state) || !state->type) {
 		if (info->tty)
 			set_bit(TTY_IO_ERROR, &info->tty->flags);
Index: drivers/gecko/lasi.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/gecko/lasi.c,v
retrieving revision 1.13
diff -u -r1.13 lasi.c
--- drivers/gecko/lasi.c	1999/10/15 19:30:30	1.13
+++ drivers/gecko/lasi.c	1999/10/16 20:06:44
@@ -263,7 +263,9 @@
         serial->type = PORT_UNKNOWN; // else: PORT_16550A;
         serial->line = 0;
 	serial->port = ((unsigned int) d->hpa) + 0x800;
-        serial->irq = 256 + 5;	// FIXME: lasi->region->data.irqbase + 5
+	serial->iomem_base = ((unsigned int) d->hpa) + 0x800;
+        // serial->irq = 256 + 5;	// FIXME: lasi->region->data.irqbase + 5
+        serial->irq = 0;
         serial->io_type = SERIAL_IO_GSC;
         serial->flags = ASYNC_SKIP_TEST; // else autoconfig() will fail !
         serial->xmit_fifo_size = 16;
Index: init/main.c
===================================================================
RCS file: /home/cvs/parisc/linux/init/main.c,v
retrieving revision 1.23
diff -u -r1.23 main.c
--- init/main.c	1999/10/15 19:30:31	1.23
+++ init/main.c	1999/10/16 20:06:47
@@ -1425,6 +1425,7 @@
 	 */
 
 	execute_command = "/sbin/init";
+	argv_init[1] = NULL;
 	if (execute_command)
 		do_execve(execute_command,argv_init,envp_init,NULL);
 	panic("No init found.  Try passing init= option to kernel.");





-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Start sash ...
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Xref: news.gmane.org gmane.linux.ports.parisc:10022

Thomas Bogendoerfer wrote:
...
> Serial Interrupts are definitly not working. I'm now running the uart in 
> polling mode and I had to force use 16550A mode. Below is a patchset of my
> hacks.  You need a fixed posix_types.h and bitops.h, too. I haven't tested 
> the cvs version, yet.

...
> Index: drivers/gecko/lasi.c
> ===================================================================
> RCS file: /home/cvs/parisc/linux/drivers/gecko/lasi.c,v
> retrieving revision 1.13
> diff -u -r1.13 lasi.c
> --- drivers/gecko/lasi.c	1999/10/15 19:30:30	1.13
> +++ drivers/gecko/lasi.c	1999/10/16 20:06:44
> @@ -263,7 +263,9 @@
>          serial->type = PORT_UNKNOWN; // else: PORT_16550A;
>          serial->line = 0;
 	serial->port = ((unsigned int) d->hpa) + 0x800;
> -        serial->irq = 256 + 5;	// FIXME: lasi->region->data.irqbase + 
>   5
> +	serial->iomem_base = ((unsigned int) d->hpa) + 0x800;
> +        // serial->irq = 256 + 5;	// FIXME: lasi->region->data.irqbase + 
>   5
> +        serial->irq = 0;

The code here could use lasi_alloc_irq() to get the "right" irq number.
I added this to support lasi7xx.c (c710 SCSI macrocell Lasi).
I coded this function based on some research I did (ie not guaranteed
to be right). My conclusion was the lasi serial was on bit 26 (not 5).
I may have bits numbered from the wrong end. Either way, might be
easier to support in the long run if serial device setup used this
interface as well.

thanks,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Subject: [parisc-linux] ld: Unsatisfied symbols: csum_partial (code)
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I have a "vanilla" CVS tree and am getting the following
linker error:
ld -R 0xc0010000 -N -e stext arch/parisc/kernel/head.o arch/parisc/kernel/init_task.o init/main.o init/version.o \
        arch/parisc/boot/ramdisk.o arch/parisc/kernel/kernel.o arch/parisc/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o \
        fs/filesystems.a \
        net/network.a \
        drivers/block/block.a drivers/char/char.a drivers/gecko/gecko.a  drivers/net/net.a drivers/scsi/scsi.a drivers/pci/pci.a \
        /linux/linux/arch/parisc/lib/lib.a /linux/linux/lib/lib.a /linux/linux/arch/parisc/lib/lib.a \
        -o vmlinux
ld: Unsatisfied symbols:
   csum_partial (code)
   serial_console_init (code)
make[1]: *** [vmlinux-real] Error 1

Any clue what's broken?
Someone submit code recently which touched these functions?

thanks,
grant

linux/.config contents are:
grundler <2776>cat .config
#
# Automatically generated make config: don't edit
#

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Machine type
#
# CONFIG_HP_715 is not set
# CONFIG_HP_712 is not set
CONFIG_HP_ACLASS=y
# CONFIG_HP_DCLASS is not set

#
# CPU type
#
# CONFIG_PA7100 is not set
CONFIG_PA7300=y
# CONFIG_SMP is not set
# CONFIG_IODC_CONSOLE is not set
CONFIG_GECKO_DINO=y
CONFIG_GECKO_LASI=y
CONFIG_GECKO=y
CONFIG_GECKO_DINO=y
CONFIG_PCI=y

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# General setup
#
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
# CONFIG_BINFMT_SOM is not set
# CONFIG_BINFMT_ELF is not set
# CONFIG_BINFMT_MISC is not set
# CONFIG_BINFMT_JAVA is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_IDE is not set

#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_HD_ONLY is not set

#
# Additional Block Devices
#
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_MD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_BLK_DEV_XD is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_PARIDE_PARPORT=m
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_DEV_HD is not set

#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_NETLINK is not set
# CONFIG_FIREWALL is not set
# CONFIG_FILTER is not set
# CONFIG_UNIX is not set
# CONFIG_INET is not set

#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_BRIDGE is not set
# CONFIG_LLC is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set
# CONFIG_CPU_IS_SLOW is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# SCSI support
#
CONFIG_SCSI=y

#
# SCSI support type (disk, tape, CDrom)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
CONFIG_SCSI_CONSTANTS=y

#
# SCSI low-level drivers
#
CONFIG_LASI_SCSI=y

#
# Network device support
#
CONFIG_NETDEVICES=y
# CONFIG_APRICOT is not set
CONFIG_DEC_ELCP=y

#
# Character devices
#
# CONFIG_VT is not set
# CONFIG_SERIAL is not set
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
# CONFIG_PRINTER is not set
# CONFIG_MOUSE is not set
# CONFIG_QIC02_TAPE is not set
# CONFIG_WATCHDOG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set

#
# Video For Linux
#
# CONFIG_VIDEO_DEV is not set

#
# Joystick support
#
# CONFIG_JOYSTICK is not set
# CONFIG_DTLK is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set

#
# Filesystems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_EFS_FS is not set

#
# Network File Systems
#

#
# Partition Types
#
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_MAC_PARTITION is not set
# CONFIG_SMD_DISKLABEL is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_NLS is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y


Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] rebuild of 53c7xx.o
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Xref: news.gmane.org gmane.linux.ports.parisc:10024

It was annoying me that 53c7xx.o was getting rebuilt on every
build....So I tried to figure out why.  The basic problem is
"dummy" target (from Rules.make?) is invoked and fails when comparing
time stamps. But I don't see where/why 53c7xx.o has dummy as a dependent.
I think fixing this should fix the problem.

Appended is relevant "make -d" output.
(The whole output is 531846 lines).
Does someone see the problem and/or know how to fix it?

thanks,
grant

...
    Considering target file `53c7xx.o'.
      Considering target file `53c7xx_d.h'.
        Considering target file `53c7xx.scr'.
         Looking for an implicit rule for `53c7xx.scr'.
         Trying pattern rule with stem `53c7xx.scr'.
         Trying implicit dependency `53c7xx.scr.c'.
         Trying pattern rule with stem `53c7xx.scr'.
         Trying implicit dependency `53c7xx.scr.o'.
         Trying pattern rule with stem `53c7xx.scr'.
         Trying implicit dependency `53c7xx.scr,v'.
         Trying pattern rule with stem `53c7xx.scr'.
         Trying implicit dependency `RCS/53c7xx.scr,v'.
         Trying pattern rule with stem `53c7xx.scr'.
         Trying implicit dependency `RCS/53c7xx.scr'.
         Trying pattern rule with stem `53c7xx.scr'.
         Trying implicit dependency `s.53c7xx.scr'.
         Trying pattern rule with stem `53c7xx.scr'.
         Trying implicit dependency `SCCS/s.53c7xx.scr'.
         Trying pattern rule with stem `53c7xx.scr'.
         Trying implicit dependency `53c7xx.scr.c'.
         Looking for a rule with intermediate file `53c7xx.scr.c'.
          Avoiding implicit rule recursion.
          Trying pattern rule with stem `53c7xx.scr'.
          Trying implicit dependency `53c7xx.scr.w'.
          Trying pattern rule with stem `53c7xx.scr.c'.
          Trying implicit dependency `53c7xx.scr.c,v'.
          Trying pattern rule with stem `53c7xx.scr.c'.
          Trying implicit dependency `RCS/53c7xx.scr.c,v'.
          Trying pattern rule with stem `53c7xx.scr.c'.
          Trying implicit dependency `RCS/53c7xx.scr.c'.
          Trying pattern rule with stem `53c7xx.scr.c'.
          Trying implicit dependency `s.53c7xx.scr.c'.
          Trying pattern rule with stem `53c7xx.scr.c'.
          Trying implicit dependency `SCCS/s.53c7xx.scr.c'.
          Trying pattern rule with stem `53c7xx.scr'.
          Trying implicit dependency `53c7xx.scr.w'.
          Looking for a rule with intermediate file `53c7xx.scr.w'.
           Avoiding implicit rule recursion.
           Avoiding implicit rule recursion.
           Trying pattern rule with stem `53c7xx.scr.w'.
           Trying implicit dependency `53c7xx.scr.w,v'.
           Trying pattern rule with stem `53c7xx.scr.w'.
           Trying implicit dependency `RCS/53c7xx.scr.w,v'.
           Trying pattern rule with stem `53c7xx.scr.w'.
           Trying implicit dependency `RCS/53c7xx.scr.w'.
           Trying pattern rule with stem `53c7xx.scr.w'.
           Trying implicit dependency `s.53c7xx.scr.w'.
           Trying pattern rule with stem `53c7xx.scr.w'.
           Trying implicit dependency `SCCS/s.53c7xx.scr.w'.
         Trying pattern rule with stem `53c7xx.scr'.
         Trying implicit dependency `53c7xx.scr.o'.
         Looking for a rule with intermediate file `53c7xx.scr.o'.
          Avoiding implicit rule recursion.
          Trying pattern rule with stem `53c7xx.scr'.
          Rejecting impossible implicit dependency `53c7xx.scr.c'.
          Trying pattern rule with stem `53c7xx.scr'.
          Trying implicit dependency `53c7xx.scr.s'.
          Trying pattern rule with stem `53c7xx.scr.o'.
          Trying implicit dependency `53c7xx.scr.o,v'.
          Trying pattern rule with stem `53c7xx.scr.o'.
          Trying implicit dependency `RCS/53c7xx.scr.o,v'.
          Trying pattern rule with stem `53c7xx.scr.o'.
          Trying implicit dependency `RCS/53c7xx.scr.o'.
          Trying pattern rule with stem `53c7xx.scr.o'.
          Trying implicit dependency `s.53c7xx.scr.o'.
          Trying pattern rule with stem `53c7xx.scr.o'.
          Trying implicit dependency `SCCS/s.53c7xx.scr.o'.
          Trying pattern rule with stem `53c7xx.scr'.
          Trying implicit dependency `53c7xx.scr.s'.
          Looking for a rule with intermediate file `53c7xx.scr.s'.
           Avoiding implicit rule recursion.
           Avoiding implicit rule recursion.
           Trying pattern rule with stem `53c7xx.scr'.
           Rejecting impossible implicit dependency `53c7xx.scr.c'.
           Trying pattern rule with stem `53c7xx.scr.s'.
           Trying implicit dependency `53c7xx.scr.s,v'.
           Trying pattern rule with stem `53c7xx.scr.s'.
           Trying implicit dependency `RCS/53c7xx.scr.s,v'.
           Trying pattern rule with stem `53c7xx.scr.s'.
           Trying implicit dependency `RCS/53c7xx.scr.s'.
           Trying pattern rule with stem `53c7xx.scr.s'.
           Trying implicit dependency `s.53c7xx.scr.s'.
           Trying pattern rule with stem `53c7xx.scr.s'.
           Trying implicit dependency `SCCS/s.53c7xx.scr.s'.
         No implicit rule found for `53c7xx.scr'.
         Finished dependencies of target file `53c7xx.scr'.
        No need to remake target `53c7xx.scr'.
        Considering target file `script_asm.pl'.
         Looking for an implicit rule for `script_asm.pl'.
         Trying pattern rule with stem `script_asm.pl'.
         Trying implicit dependency `script_asm.pl.c'.
         Trying pattern rule with stem `script_asm.pl'.
         Trying implicit dependency `script_asm.pl.o'.
         Trying pattern rule with stem `script_asm.pl'.
         Trying implicit dependency `script_asm.pl,v'.
         Trying pattern rule with stem `script_asm.pl'.
         Trying implicit dependency `RCS/script_asm.pl,v'.
         Trying pattern rule with stem `script_asm.pl'.
         Trying implicit dependency `RCS/script_asm.pl'.
         Trying pattern rule with stem `script_asm.pl'.
         Trying implicit dependency `s.script_asm.pl'.
         Trying pattern rule with stem `script_asm.pl'.
         Trying implicit dependency `SCCS/s.script_asm.pl'.
         Trying pattern rule with stem `script_asm.pl'.
         Trying implicit dependency `script_asm.pl.c'.
         Looking for a rule with intermediate file `script_asm.pl.c'.
          Avoiding implicit rule recursion.
          Trying pattern rule with stem `script_asm.pl'.
          Trying implicit dependency `script_asm.pl.w'.
          Trying pattern rule with stem `script_asm.pl.c'.
          Trying implicit dependency `script_asm.pl.c,v'.
          Trying pattern rule with stem `script_asm.pl.c'.
          Trying implicit dependency `RCS/script_asm.pl.c,v'.
          Trying pattern rule with stem `script_asm.pl.c'.
          Trying implicit dependency `RCS/script_asm.pl.c'.
          Trying pattern rule with stem `script_asm.pl.c'.
          Trying implicit dependency `s.script_asm.pl.c'.
          Trying pattern rule with stem `script_asm.pl.c'.
          Trying implicit dependency `SCCS/s.script_asm.pl.c'.
          Trying pattern rule with stem `script_asm.pl'.
          Trying implicit dependency `script_asm.pl.w'.
          Looking for a rule with intermediate file `script_asm.pl.w'.
           Avoiding implicit rule recursion.
           Avoiding implicit rule recursion.
           Trying pattern rule with stem `script_asm.pl.w'.
           Trying implicit dependency `script_asm.pl.w,v'.
           Trying pattern rule with stem `script_asm.pl.w'.
           Trying implicit dependency `RCS/script_asm.pl.w,v'.
           Trying pattern rule with stem `script_asm.pl.w'.
           Trying implicit dependency `RCS/script_asm.pl.w'.
           Trying pattern rule with stem `script_asm.pl.w'.
           Trying implicit dependency `s.script_asm.pl.w'.
           Trying pattern rule with stem `script_asm.pl.w'.
           Trying implicit dependency `SCCS/s.script_asm.pl.w'.
         Trying pattern rule with stem `script_asm.pl'.
         Trying implicit dependency `script_asm.pl.o'.
         Looking for a rule with intermediate file `script_asm.pl.o'.
          Avoiding implicit rule recursion.
          Trying pattern rule with stem `script_asm.pl'.
          Rejecting impossible implicit dependency `script_asm.pl.c'.
          Trying pattern rule with stem `script_asm.pl'.
          Trying implicit dependency `script_asm.pl.s'.
          Trying pattern rule with stem `script_asm.pl.o'.
          Trying implicit dependency `script_asm.pl.o,v'.
          Trying pattern rule with stem `script_asm.pl.o'.
          Trying implicit dependency `RCS/script_asm.pl.o,v'.
          Trying pattern rule with stem `script_asm.pl.o'.
          Trying implicit dependency `RCS/script_asm.pl.o'.
          Trying pattern rule with stem `script_asm.pl.o'.
          Trying implicit dependency `s.script_asm.pl.o'.
          Trying pattern rule with stem `script_asm.pl.o'.
          Trying implicit dependency `SCCS/s.script_asm.pl.o'.
          Trying pattern rule with stem `script_asm.pl'.
          Trying implicit dependency `script_asm.pl.s'.
          Looking for a rule with intermediate file `script_asm.pl.s'.
           Avoiding implicit rule recursion.
           Avoiding implicit rule recursion.
           Trying pattern rule with stem `script_asm.pl'.
           Rejecting impossible implicit dependency `script_asm.pl.c'.
           Trying pattern rule with stem `script_asm.pl.s'.
           Trying implicit dependency `script_asm.pl.s,v'.
           Trying pattern rule with stem `script_asm.pl.s'.
           Trying implicit dependency `RCS/script_asm.pl.s,v'.
           Trying pattern rule with stem `script_asm.pl.s'.
           Trying implicit dependency `RCS/script_asm.pl.s'.
           Trying pattern rule with stem `script_asm.pl.s'.
           Trying implicit dependency `s.script_asm.pl.s'.
           Trying pattern rule with stem `script_asm.pl.s'.
           Trying implicit dependency `SCCS/s.script_asm.pl.s'.
         No implicit rule found for `script_asm.pl'.
         Finished dependencies of target file `script_asm.pl'.
        No need to remake target `script_asm.pl'.
       Finished dependencies of target file `53c7xx_d.h'.
       Dependency `53c7xx.scr' is older than dependent `53c7xx_d.h'.
       Dependency `script_asm.pl' is older than dependent `53c7xx_d.h'.
      No need to remake target `53c7xx_d.h'.
      Considering target file `53c7xx.c'.
       Looking for an implicit rule for `53c7xx.c'.
       Trying pattern rule with stem `53c7xx'.
       Trying implicit dependency `53c7xx.w'.
       Trying pattern rule with stem `53c7xx.c'.
       Trying implicit dependency `53c7xx.c,v'.
       Trying pattern rule with stem `53c7xx.c'.
       Trying implicit dependency `RCS/53c7xx.c,v'.
       Trying pattern rule with stem `53c7xx.c'.
       Trying implicit dependency `RCS/53c7xx.c'.
       Trying pattern rule with stem `53c7xx.c'.
       Trying implicit dependency `s.53c7xx.c'.
       Trying pattern rule with stem `53c7xx.c'.
       Trying implicit dependency `SCCS/s.53c7xx.c'.
       Trying pattern rule with stem `53c7xx'.
       Trying implicit dependency `53c7xx.w'.
       Looking for a rule with intermediate file `53c7xx.w'.
        Avoiding implicit rule recursion.
        Trying pattern rule with stem `53c7xx.w'.
        Trying implicit dependency `53c7xx.w,v'.
        Trying pattern rule with stem `53c7xx.w'.
        Trying implicit dependency `RCS/53c7xx.w,v'.
        Trying pattern rule with stem `53c7xx.w'.
        Trying implicit dependency `RCS/53c7xx.w'.
        Trying pattern rule with stem `53c7xx.w'.
        Trying implicit dependency `s.53c7xx.w'.
        Trying pattern rule with stem `53c7xx.w'.
        Trying implicit dependency `SCCS/s.53c7xx.w'.
       No implicit rule found for `53c7xx.c'.
       Finished dependencies of target file `53c7xx.c'.
      No need to remake target `53c7xx.c'.
      Considering target file `/linux/linux/include/linux/module.h'.
      File `/linux/linux/include/linux/module.h' was considered already.
      Considering target file `/linux/linux/include/linux/types.h'.
      File `/linux/linux/include/linux/types.h' was considered already.
      Considering target file `/linux/linux/include/asm/setup.h'.
       Looking for an implicit rule for `/linux/linux/include/asm/setup.h'.
       Trying pattern rule with stem `setup.h'.
       Trying implicit dependency `/linux/linux/include/asm/setup.h,v'.
       Trying pattern rule with stem `setup.h'.
       Trying implicit dependency `/linux/linux/include/asm/RCS/setup.h,v'.
       Trying pattern rule with stem `setup.h'.
       Trying implicit dependency `/linux/linux/include/asm/RCS/setup.h'.
       Trying pattern rule with stem `setup.h'.
       Trying implicit dependency `/linux/linux/include/asm/s.setup.h'.
       Trying pattern rule with stem `setup.h'.
       Trying implicit dependency `/linux/linux/include/asm/SCCS/s.setup.h'.
       No implicit rule found for `/linux/linux/include/asm/setup.h'.
       Finished dependencies of target file `/linux/linux/include/asm/setup.h'.
      No need to remake target `/linux/linux/include/asm/setup.h'.
      Considering target file `/linux/linux/include/asm/dma.h'.
      File `/linux/linux/include/asm/dma.h' was considered already.
      Considering target file `/linux/linux/include/asm/io.h'.
      File `/linux/linux/include/asm/io.h' was considered already.
      Considering target file `/linux/linux/include/asm/system.h'.
      File `/linux/linux/include/asm/system.h' was considered already.
      Considering target file `/linux/linux/include/linux/delay.h'.
      File `/linux/linux/include/linux/delay.h' was considered already.
      Considering target file `/linux/linux/include/linux/signal.h'.
       Looking for an implicit rule for `/linux/linux/include/linux/signal.h'.
       Trying pattern rule with stem `signal.h'.
       Trying implicit dependency `/linux/linux/include/linux/signal.h,v'.
       Trying pattern rule with stem `signal.h'.
       Trying implicit dependency `/linux/linux/include/linux/RCS/signal.h,v'.
       Trying pattern rule with stem `signal.h'.
       Trying implicit dependency `/linux/linux/include/linux/RCS/signal.h'.
       Trying pattern rule with stem `signal.h'.
       Trying implicit dependency `/linux/linux/include/linux/s.signal.h'.
       Trying pattern rule with stem `signal.h'.
       Trying implicit dependency `/linux/linux/include/linux/SCCS/s.signal.h'.
       No implicit rule found for `/linux/linux/include/linux/signal.h'.
       Finished dependencies of target file `/linux/linux/include/linux/signal.h'.
      No need to remake target `/linux/linux/include/linux/signal.h'.
      Considering target file `/linux/linux/include/linux/sched.h'.
      File `/linux/linux/include/linux/sched.h' was considered already.
      Considering target file `/linux/linux/include/linux/errno.h'.
      File `/linux/linux/include/linux/errno.h' was considered already.
      Considering target file `/linux/linux/include/linux/proc_fs.h'.
      File `/linux/linux/include/linux/proc_fs.h' was considered already.
      Considering target file `/linux/linux/include/linux/string.h'.
      File `/linux/linux/include/linux/string.h' was considered already.
      Considering target file `/linux/linux/include/linux/malloc.h'.
      File `/linux/linux/include/linux/malloc.h' was considered already.
      Considering target file `/linux/linux/include/linux/vmalloc.h'.
       Looking for an implicit rule for `/linux/linux/include/linux/vmalloc.h'.
       Trying pattern rule with stem `vmalloc.h'.
       Trying implicit dependency `/linux/linux/include/linux/vmalloc.h,v'.
       Trying pattern rule with stem `vmalloc.h'.
       Trying implicit dependency `/linux/linux/include/linux/RCS/vmalloc.h,v'.
       Trying pattern rule with stem `vmalloc.h'.
       Trying implicit dependency `/linux/linux/include/linux/RCS/vmalloc.h'.
       Trying pattern rule with stem `vmalloc.h'.
       Trying implicit dependency `/linux/linux/include/linux/s.vmalloc.h'.
       Trying pattern rule with stem `vmalloc.h'.
       Trying implicit dependency `/linux/linux/include/linux/SCCS/s.vmalloc.h'.
       No implicit rule found for `/linux/linux/include/linux/vmalloc.h'.
       Finished dependencies of target file `/linux/linux/include/linux/vmalloc.h'.
      No need to remake target `/linux/linux/include/linux/vmalloc.h'.
      Considering target file `/linux/linux/include/linux/mm.h'.
      File `/linux/linux/include/linux/mm.h' was considered already.
      Considering target file `/linux/linux/include/linux/ioport.h'.
      File `/linux/linux/include/linux/ioport.h' was considered already.
      Considering target file `/linux/linux/include/linux/time.h'.
       Looking for an implicit rule for `/linux/linux/include/linux/time.h'.
       Trying pattern rule with stem `time.h'.
       Trying implicit dependency `/linux/linux/include/linux/time.h,v'.
       Trying pattern rule with stem `time.h'.
       Trying implicit dependency `/linux/linux/include/linux/RCS/time.h,v'.
       Trying pattern rule with stem `time.h'.
       Trying implicit dependency `/linux/linux/include/linux/RCS/time.h'.
       Trying pattern rule with stem `time.h'.
       Trying implicit dependency `/linux/linux/include/linux/s.time.h'.
       Trying pattern rule with stem `time.h'.
       Trying implicit dependency `/linux/linux/include/linux/SCCS/s.time.h'.
       No implicit rule found for `/linux/linux/include/linux/time.h'.
       Finished dependencies of target file `/linux/linux/include/linux/time.h'.
      No need to remake target `/linux/linux/include/linux/time.h'.
      Considering target file `/linux/linux/include/linux/blk.h'.
      File `/linux/linux/include/linux/blk.h' was considered already.
      Considering target file `/linux/linux/include/asm/spinlock.h'.
      File `/linux/linux/include/asm/spinlock.h' was considered already.
      Considering target file `/linux/linux/include/asm/pgtable.h'.
      File `/linux/linux/include/asm/pgtable.h' was considered already.
      Considering target file `/linux/linux/include/asm/irq.h'.
      File `/linux/linux/include/asm/irq.h' was considered already.
      Considering target file `/linux/linux/include/asm/pgtable.h'.
      File `/linux/linux/include/asm/pgtable.h' was considered already.
      Considering target file `/linux/linux/include/asm/pgtable.h'.
      File `/linux/linux/include/asm/pgtable.h' was considered already.
      Considering target file `/linux/linux/include/config/gecko/lasi.h'.
      File `/linux/linux/include/config/gecko/lasi.h' was considered already.
      Considering target file `/linux/linux/include/asm/gsc.h'.
       Looking for an implicit rule for `/linux/linux/include/asm/gsc.h'.
       Trying pattern rule with stem `gsc.h'.
       Trying implicit dependency `/linux/linux/include/asm/gsc.h,v'.
       Trying pattern rule with stem `gsc.h'.
       Trying implicit dependency `/linux/linux/include/asm/RCS/gsc.h,v'.
       Trying pattern rule with stem `gsc.h'.
       Trying implicit dependency `/linux/linux/include/asm/RCS/gsc.h'.
       Trying pattern rule with stem `gsc.h'.
       Trying implicit dependency `/linux/linux/include/asm/s.gsc.h'.
       Trying pattern rule with stem `gsc.h'.
       Trying implicit dependency `/linux/linux/include/asm/SCCS/s.gsc.h'.
       No implicit rule found for `/linux/linux/include/asm/gsc.h'.
       Finished dependencies of target file `/linux/linux/include/asm/gsc.h'.
      No need to remake target `/linux/linux/include/asm/gsc.h'.
      Considering target file `scsi.h'.
      File `scsi.h' was considered already.
      Considering target file `hosts.h'.
      File `hosts.h' was considered already.
      Considering target file `53c7xx.h'.
      File `53c7xx.h' was considered already.
      Considering target file `constants.h'.
      File `constants.h' was considered already.
      Considering target file `sd.h'.
      File `sd.h' was considered already.
      Considering target file `/linux/linux/include/linux/stat.h'.
      File `/linux/linux/include/linux/stat.h' was considered already.
      Considering target file `/linux/linux/include/linux/stddef.h'.
      File `/linux/linux/include/linux/stddef.h' was considered already.
      Considering target file `53c7xx_d.h'.
      File `53c7xx_d.h' was considered already.
      Considering target file `53c7xx_u.h'.
       Looking for an implicit rule for `53c7xx_u.h'.
       Trying pattern rule with stem `53c7xx_u.h'.
       Trying implicit dependency `53c7xx_u.h,v'.
       Trying pattern rule with stem `53c7xx_u.h'.
       Trying implicit dependency `RCS/53c7xx_u.h,v'.
       Trying pattern rule with stem `53c7xx_u.h'.
       Trying implicit dependency `RCS/53c7xx_u.h'.
       Trying pattern rule with stem `53c7xx_u.h'.
       Trying implicit dependency `s.53c7xx_u.h'.
       Trying pattern rule with stem `53c7xx_u.h'.
       Trying implicit dependency `SCCS/s.53c7xx_u.h'.
       No implicit rule found for `53c7xx_u.h'.
        Considering target file `53c7xx_d.h'.
        File `53c7xx_d.h' was considered already.
       Finished dependencies of target file `53c7xx_u.h'.
       Dependency `53c7xx_d.h' is older than dependent `53c7xx_u.h'.
      No commands for `53c7xx_u.h' and no dependencies actually changed.
      No need to remake target `53c7xx_u.h'.
      Considering target file `scsi_module.c'.
       Looking for an implicit rule for `scsi_module.c'.
       Trying pattern rule with stem `scsi_module'.
       Trying implicit dependency `scsi_module.w'.
       Trying pattern rule with stem `scsi_module.c'.
       Trying implicit dependency `scsi_module.c,v'.
       Trying pattern rule with stem `scsi_module.c'.
       Trying implicit dependency `RCS/scsi_module.c,v'.
       Trying pattern rule with stem `scsi_module.c'.
       Trying implicit dependency `RCS/scsi_module.c'.
       Trying pattern rule with stem `scsi_module.c'.
       Trying implicit dependency `s.scsi_module.c'.
       Trying pattern rule with stem `scsi_module.c'.
       Trying implicit dependency `SCCS/s.scsi_module.c'.
       Trying pattern rule with stem `scsi_module'.
       Trying implicit dependency `scsi_module.w'.
       Looking for a rule with intermediate file `scsi_module.w'.
        Avoiding implicit rule recursion.
        Trying pattern rule with stem `scsi_module.w'.
        Trying implicit dependency `scsi_module.w,v'.
        Trying pattern rule with stem `scsi_module.w'.
        Trying implicit dependency `RCS/scsi_module.w,v'.
        Trying pattern rule with stem `scsi_module.w'.
        Trying implicit dependency `RCS/scsi_module.w'.
        Trying pattern rule with stem `scsi_module.w'.
        Trying implicit dependency `s.scsi_module.w'.
        Trying pattern rule with stem `scsi_module.w'.
        Trying implicit dependency `SCCS/s.scsi_module.w'.
       No implicit rule found for `scsi_module.c'.
       Finished dependencies of target file `scsi_module.c'.
      No need to remake target `scsi_module.c'.
      Considering target file `dummy'.
       File `dummy' does not exist.
       Finished dependencies of target file `dummy'.
      Must remake target `dummy'.
      Successfully remade target file `dummy'.
     Finished dependencies of target file `53c7xx.o'.
     Dependency `53c7xx_d.h' is older than dependent `53c7xx.o'.
     Dependency `53c7xx.c' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/module.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/types.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/asm/setup.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/asm/dma.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/asm/io.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/asm/system.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/delay.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/signal.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/sched.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/errno.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/proc_fs.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/string.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/malloc.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/vmalloc.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/mm.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/ioport.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/time.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/blk.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/asm/spinlock.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/asm/pgtable.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/asm/irq.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/asm/pgtable.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/asm/pgtable.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/config/gecko/lasi.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/asm/gsc.h' is older than dependent `53c7xx.o'.
     Dependency `scsi.h' is older than dependent `53c7xx.o'.
     Dependency `hosts.h' is older than dependent `53c7xx.o'.
     Dependency `53c7xx.h' is older than dependent `53c7xx.o'.
     Dependency `constants.h' is older than dependent `53c7xx.o'.
     Dependency `sd.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/stat.h' is older than dependent `53c7xx.o'.
     Dependency `/linux/linux/include/linux/stddef.h' is older than dependent `53c7xx.o'.
     Dependency `53c7xx_d.h' is older than dependent `53c7xx.o'.
     Dependency `53c7xx_u.h' is older than dependent `53c7xx.o'.
     Dependency `scsi_module.c' is older than dependent `53c7xx.o'.
     Dependency `dummy' does not exist.
    Must remake target `53c7xx.o'.
make[3]: Entering directory `/linux/linux/drivers/scsi'
...


From - Thu Nov 08 21:16:11 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: "William M. Brack" <wbrack@mmm.com.hk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] rebuild of 53c7xx.o
Date: Sun, 17 Oct 1999 17:48:40 +0800
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Approved: news@gmane.org
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To: <parisc-linux@thepuffingroup.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:10025

This is caused because the Makefile in drivers/scsi has an explicit rule for
making 53c7xx.o which invokes $(CC).  To fix it, just edit the makefile and
delete the line

    $(CC) $(CFLAGS) -c 53c7xx.c

which follows

53c7xx.o : 53c7xx_d.h 53c7xx.c


Regards,

Bill Brack
Hong Kong

----- Original Message -----
From: Grant Grundler <grundler@cup.hp.com>
To: <parisc-linux@thepuffingroup.com>
Sent: Sunday, October 17, 1999 10:25 AM
Subject: [parisc-linux] rebuild of 53c7xx.o

> It was annoying me that 53c7xx.o was getting rebuilt on every
> build....So I tried to figure out why.  The basic problem is
> "dummy" target (from Rules.make?) is invoked and fails when comparing
> time stamps. But I don't see where/why 53c7xx.o has dummy as a dependent.
> I think fixing this should fix the problem.
>
> Appended is relevant "make -d" output.
> (The whole output is 531846 lines).
> Does someone see the problem and/or know how to fix it?
>
> thanks,
> grant
>



From - Thu Nov 08 21:16:11 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ld: Unsatisfied symbols: csum_partial (code)
Date: Mon, 18 Oct 1999 00:34:58 +0200
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Am Sun, 17 Oct 1999 schrieb Grant Grundler:
> I have a "vanilla" CVS tree and am getting the following
> linker error:
> ld -R 0xc0010000 -N -e stext arch/parisc/kernel/head.o arch/parisc/kernel/init_task.o init/main.o init/version.o \
>         arch/parisc/boot/ramdisk.o arch/parisc/kernel/kernel.o arch/parisc/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o \
>         fs/filesystems.a \
>         net/network.a \
>         drivers/block/block.a drivers/char/char.a drivers/gecko/gecko.a  drivers/net/net.a drivers/scsi/scsi.a drivers/pci/pci.a \
>         /linux/linux/arch/parisc/lib/lib.a /linux/linux/lib/lib.a /linux/linux/arch/parisc/lib/lib.a \
>         -o vmlinux
> ld: Unsatisfied symbols:
>    csum_partial (code)
>    serial_console_init (code)
> make[1]: *** [vmlinux-real] Error 1
> 
> Any clue what's broken?
> Someone submit code recently which touched these functions?
> 
> thanks,
> grant



Hi Grant,

serial_console_init was my fault.
This should now be corrected in the CVS, but I cant verify the csum_partial
error here .....

Helge.


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ld: Unsatisfied symbols: csum_partial (code)
Date: Sun, 17 Oct 1999 21:41:07 -0700
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Helge Deller wrote:
> Hi Grant,
> 
> serial_console_init was my fault.
> This should now be corrected in the CVS, but I cant verify the csum_partial
> error here.

Thanks Helge.
I can't reproduce csum_partial error either after doing "make dep". :^)
I've cc'd parisc-linux as a reminder for others...

grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Grant Grundler <grundler@rock.cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] lasi Serial support
Date: Sun, 17 Oct 1999 22:37:45 -0700 (PDT)
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Hi all,
I just submitted another change to drivers/gecko/lasi.c after reviewing
the code and noting the IMR was being written twice in a row.

But I mainly write to question the location of LASI serial port code.
I don't know if it's "right" to have this code in lasi.c.  I'd like
to understand if it is and why. I'm confused because Lasi SCSI support
is in lasi7xx.c.  Is it reasonable to create a lasi_RS232.c (or whatever)?

And I'm thinking keeping the lasi.c/h files smaller is a good thing.
One can also modularize the support better (ie put the ifdef in the
Makefile instead).  Other thoughts on this?
If it's the "right" thing to do, any volunteers?

thanks,
grant


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From: dkennedy@thepuffingroup.com
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] lasi Serial support
Date: Mon, 18 Oct 1999 14:59:34 -0400 (EDT)
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On Sun, 17 Oct 1999, Grant Grundler wrote:

> But I mainly write to question the location of LASI serial port code.
> I don't know if it's "right" to have this code in lasi.c.  I'd like
> to understand if it is and why. I'm confused because Lasi SCSI support
> is in lasi7xx.c.  Is it reasonable to create a lasi_RS232.c (or whatever)?

The reason why it is in lasi7xx.c is because it is called from the
SCSI code and not from anywhere else.  There is no serial code which
goes through a possible list of serial device drivers trying each one.
It was placed in lasi.c to get it working.  I'm not sure exactly where
it is supposed to be either.

We had to do a nasty hack to get the serial console to work.  The
serial console is initialized much before the lasi initialization code
is called.  This should be fixed.  My suggestion was in the serial
console to mark the fact there is supposed to be a serial console, and
then in lasi.c actually initialize it.  I don't know any other way
around the fact that you have to initialize lasi before lasi serial
stuff.

The other idea I had was to create a function which would be called to
check if lasi is initialized.  This function would just return wether or
not it is.  From there, lasi initialization would be called.  The
reason why I think this is because we have a lot of lasi code which
isn't called from the lasi initialization routine (serial console,
scsi) and it would be nice to ensure that lasi is initialized before
_ANY_ of lasi gets used.  Having an implicit requirement that
lasi_init is called before the scsi code is, in my opinion, bad.
Explicitly checking to ensure that the lasi is initialized is better.

> And I'm thinking keeping the lasi.c/h files smaller is a good thing.
> One can also modularize the support better (ie put the ifdef in the
> Makefile instead).  Other thoughts on this?
> If it's the "right" thing to do, any volunteers?

Breaking it out into separate files sounds good to me.  The
initialization routine in lasi.c should call a function call for
initialize of each component of lasi one after another with ifdefs
around each function call.

Does anyone else have any other suggestions?

-- 
David Kennedy
The Puffin Group


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Start sash ...
Date: Mon, 18 Oct 1999 16:13:38 -0400 (EDT)
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Thomas,

Getting to a sash prompt is pretty cool, but could you mail a complete
patch against what's in CVS? We're all pretty excited about it.

- Alex

-- 
Alex deVries <adevries@thepuffingroup.com>
Vice President Engineering
The Puffin Group

On Sat, 16 Oct 1999, Thomas Bogendoerfer wrote:

> On Sat, Oct 16, 1999 at 12:46:56PM +0200, Thomas Bogendoerfer wrote:
> > Well, it *smells* like a valid SOM executable
> > (start_brk) 40017000
> > (end_code) 0003c000
> > (start_code) 00001000
> > (end_data) 40008000
> > (start_stack) 2000002c
> > (brk) 40017000
> > Stand-alone shell (version 2.1)> 
> 
> (start_stack) 2000002c
> (brk) 40017000
> Stand-alone shell (version 2.1)
> > help
> alias      [name [command]]
> cd         [dirname]
> -chgrp     gid filename ...
> -chmod     mode filename ...
> -chown     uid filename ...
> -cmp       filename1 filename2
> -cp        srcname ... destname
> -dd        if=name of=name [bs=n] [count=n] [skip=n] [seek=n]
> -echo      [args] ...
> -ed        [filename]
> exec       filename [args]
> exit       
> -grep      [-in] word filename ...
> help       [word]
> -kill      [-sig] pid ...
> -ln        [-s] srcname ... destname
> -ls        [-lid] filename ...
> -mkdir     dirname ...
> -mknod     filename type major minor
> -more      filename ...
> -mount     [-t type] [-r] [-m] devname dirname
> -mv        srcname ... destname
> -printenv  [name]
> prompt     string
> -pwd       
> quit       
> -rm        filename ...
> -rmdir     dirname ...
> setenv     name value
> source     filename
> -sync      
> -tar       [xtv]f devname filename ...
> -touch     filename ...
> umask      [mask]
> -umount    filename
> unalias    name
> -where     program
> > -pwd
> /
> > 
> 
> 
> Serial Interrupts are definitly not working. I'm now running the uart in 
> polling mode and I had to force use 16550A mode. Below is a patchset of my
> hacks.  You need a fixed posix_types.h and bitops.h, too. I haven't tested 
> the cvs version, yet.
> 
> Thomas.
> 
> PS: I'll be next week at Systems in Munich. You can find me at the Linuxpark 
> HP booth (hall A3, No. 404-22) during the whole week.
> 
> Index: arch/parisc/mm/fault.c
> ===================================================================
> RCS file: /home/cvs/parisc/linux/arch/parisc/mm/fault.c,v
> retrieving revision 1.11
> diff -u -r1.11 fault.c
> --- arch/parisc/mm/fault.c	1999/10/14 21:08:36	1.11
> +++ arch/parisc/mm/fault.c	1999/10/16 20:06:43
> @@ -206,6 +208,7 @@
>  	}
>  
>  	prot = translate_pte(*ptep);
> +	prot |= 0x03000000;
>  
>  	pa = (pte_val(*ptep)&~4095);
>  
> Index: drivers/char/serial.c
> ===================================================================
> RCS file: /home/cvs/parisc/linux/drivers/char/serial.c,v
> retrieving revision 1.7
> diff -u -r1.7 serial.c
> --- drivers/char/serial.c	1999/10/15 19:30:30	1.7
> +++ drivers/char/serial.c	1999/10/16 20:06:43
> @@ -1175,6 +1175,8 @@
>  		goto errout;
>  	}
>  
> +	state->type = PORT_16550A; /* no idea why type is 0 at this point */
> +
>  	if (!CONFIGURED_SERIAL_PORT(state) || !state->type) {
>  		if (info->tty)
>  			set_bit(TTY_IO_ERROR, &info->tty->flags);
> Index: drivers/gecko/lasi.c
> ===================================================================
> RCS file: /home/cvs/parisc/linux/drivers/gecko/lasi.c,v
> retrieving revision 1.13
> diff -u -r1.13 lasi.c
> --- drivers/gecko/lasi.c	1999/10/15 19:30:30	1.13
> +++ drivers/gecko/lasi.c	1999/10/16 20:06:44
> @@ -263,7 +263,9 @@
>          serial->type = PORT_UNKNOWN; // else: PORT_16550A;
>          serial->line = 0;
>  	serial->port = ((unsigned int) d->hpa) + 0x800;
> -        serial->irq = 256 + 5;	// FIXME: lasi->region->data.irqbase + 5
> +	serial->iomem_base = ((unsigned int) d->hpa) + 0x800;
> +        // serial->irq = 256 + 5;	// FIXME: lasi->region->data.irqbase + 5
> +        serial->irq = 0;
>          serial->io_type = SERIAL_IO_GSC;
>          serial->flags = ASYNC_SKIP_TEST; // else autoconfig() will fail !
>          serial->xmit_fifo_size = 16;
> Index: init/main.c
> ===================================================================
> RCS file: /home/cvs/parisc/linux/init/main.c,v
> retrieving revision 1.23
> diff -u -r1.23 main.c
> --- init/main.c	1999/10/15 19:30:31	1.23
> +++ init/main.c	1999/10/16 20:06:47
> @@ -1425,6 +1425,7 @@
>  	 */
>  
>  	execute_command = "/sbin/init";
> +	argv_init[1] = NULL;
>  	if (execute_command)
>  		do_execve(execute_command,argv_init,envp_init,NULL);
>  	panic("No init found.  Try passing init= option to kernel.");
> 
> 
> 
> 
> 
> -- 
>    This device has completely bogus header. Compaq scores again :-|
> It's a host bridge, but it should be called ghost bridge instead ;^)
>                                         [Martin `MJ' Mares on linux-kernel]
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 
> 
> 


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From: Alex deVries <adevries@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] lasi Serial support
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To: Grant Grundler <grundler@rock.cup.hp.com>
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On Sun, 17 Oct 1999, Grant Grundler wrote:
> But I mainly write to question the location of LASI serial port code.
> I don't know if it's "right" to have this code in lasi.c.  I'd like
> to understand if it is and why. I'm confused because Lasi SCSI support
> is in lasi7xx.c.  Is it reasonable to create a lasi_RS232.c (or whatever)?

In part because the serial ports are recognized as a seperate inventory
item, I think it makes sense to move the lasi serial stuff into
drivers/char/lasi_serial.c.  Grant, want to take care of this?

- Alex



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Subject: [parisc-linux] different PA2.0 CPUs in the same box?
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Can you mix and match different PA2.0 CPUs in a multiprocessor box?  An
8000 and an 8200?  

- Alex

-- 
Alex deVries <adevries@thepuffingroup.com>
Vice President Engineering
The Puffin Group


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> Can you mix and match different PA2.0 CPUs in a multiprocessor box?  An
> 8000 and an 8200?  

No.

 -- Jim


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Subject: Re: [parisc-linux] different PA2.0 CPUs in the same box?
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Alex deVries wrote:
> 
> Can you mix and match different PA2.0 CPUs in a multiprocessor box?
> An 8000 and an 8200?  

And HP hasn't mix/matched processor clock frequency's in one box either.
870 (4-way/PA1.0/CIO) I think had something funny about the clocks which
I think was repeated in the T-class and possible planned in newer
architectures. Can anyone shed more light on this?

Minimizing clock drift of the various processors in an SMP box is
a difficult problem. Keeping accurate time is important but
synchronization of processors too often can really hurt performance.

grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Subject: Re: [parisc-linux] different PA2.0 CPUs in the same box?
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    (Can you mix and match different PA2.0 CPUs in a multiprocessor ...)
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Alex,

> Can you mix and match different PA2.0 CPUs in a multiprocessor box?
> An 8000 and an 8200?  

No.  All the CPUs will be the same type and run at the same frequency
(and have the same cache size, etc).

Scott


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Grant Grundler wrote:
> Alex deVries wrote:
> > 
> > Can you mix and match different PA2.0 CPUs in a multiprocessor box?
> > An 8000 and an 8200?  
> 
> And HP hasn't mix/matched processor clock frequency's in one box either.
> 870 (4-way/PA1.0/CIO) I think had something funny about the clocks which
> I think was repeated in the T-class and possible planned in newer
> architectures. Can anyone shed more light on this?

I think I remember the problem now.

The processors can run from a "system clock" and they all run synchronous.
No chance of "clock drift" since they run at exactly the same pace.
But on systems like 870, T-class and N-class, the processors are fed clock
signals from (similar but) different sources.  Each frequency domain will
slowly drift from the "average" and thus the processor clocks need to be
resyncronized regularly.

> Minimizing clock drift of the various processors in an SMP box is
> a difficult problem. Keeping accurate time is important but
> synchronization of processors too often can really hurt performance.

grant


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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] LASI and serial port initialization
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Helge and I exchanged some e-mail on the topic of LASI vis a vie
serial port initialization. Since then, I've come to the conclusion
all (or most) parisc platforms will have a similar problem.

The problem is LASI is "discovered" and initialized well after several
other drivers want to print things to the console. I see a few options
on how to handle it:
1) For each platform, force the console to be the first device "discovered"
   and initialized. This is not a really good idea since console can be
   different depending on configuration. Rebuilding the kernel to use
   a different console doesn't seem reasonable to me. Having the user
   figure out which devices need to be initialized first and build an
   appropriate kernel so console works also seems unreasonable.  We are
   headed down this path now though....

2) Use IODC until the console device is "owned" by the appropriate driver
   and can start taking input/output. 

3) buffer the output instead of calling IODC.
   Size of the buffer will impose some sort of limit.
   I think this is what HP-UX does but don't really know
   and it shouldn't matter to us.

Either 2 or 3 requires some software layer behind printk to change
behavior at some point. I don't know where that point is or how
exactly to define it. I just thought going down path #1 is going
to be a real pain to support on a broad set of platforms.

Any other thoughts?

BTW, I still don't know if Helge's changes to inventory.c are
needed or not. I don't have the warm fuzzy feeling they are needed
but can't prove they aren't either.

grant

Helge Deller wrote:
> Am Mon, 18 Oct 1999 schrieben Sie:
> > Helge,
> > I never understood this chunk of very well. I was wondering
> > why you moved code from the case HPHW_BA to outside the switch
> > statement in do_oldhw_inventory()? (inventory.c)
> > 
> > If this is of general interest please post to parisc-linux...
> > 
> > thanks,
> > grant
> 
> Hi Grant.
> 
> I just wanted to get it working, so I moved stuff around until it worked. Wit
>   h
> this I found, that the LASI-Controller should be added to the list before all
> other stuff underlying the lasi (same is also to the WAX(??)-controller with
> PS2/Keyboard/Mouse/RS232/HIL). This way it worked and I didnt thought too muc
>   h
> about it later....   :-)
> 
> [Is this for global interrest ??]

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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Grant Grundler wrote:
> 
> Helge and I exchanged some e-mail on the topic of LASI vis a vie
> serial port initialization. Since then, I've come to the conclusion
> all (or most) parisc platforms will have a similar problem.
> 
> The problem is LASI is "discovered" and initialized well after several
> other drivers want to print things to the console. I see a few options
> on how to handle it:
> 1) For each platform, force the console to be the first device "discovered"
>    and initialized. This is not a really good idea since console can be
>    different depending on configuration. Rebuilding the kernel to use
>    a different console doesn't seem reasonable to me. Having the user
>    figure out which devices need to be initialized first and build an
>    appropriate kernel so console works also seems unreasonable.  We are
>    headed down this path now though....
> 
> 2) Use IODC until the console device is "owned" by the appropriate driver
>    and can start taking input/output.
> 
> 3) buffer the output instead of calling IODC.
>    Size of the buffer will impose some sort of limit.
>    I think this is what HP-UX does but don't really know
>    and it shouldn't matter to us.

Yes, this is what HP-UX does.  And in the case of a panic, the buffered
messages are flushed to the console via IODC.

> Either 2 or 3 requires some software layer behind printk to change
> behavior at some point. I don't know where that point is or how
> exactly to define it. I just thought going down path #1 is going
> to be a real pain to support on a broad set of platforms.
> 
> Any other thoughts?

Yes, 2 or 3 sound best.

Some pros & cons... (assume that the pros are the opposite of the cons
for the other option)

  2) con: - polled I/O
          - may need to add infrastructure to do IODC I/O (but this should
            be in place for the panic and dump path anyway)
     pro: - should work on all platforms, once it works on one

  3) con: - when debugging new drivers and platforms, you won't get any
            debugging messages until the console driver works

-Frank


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| 
| The processors can run from a "system clock" and they all run synchronous.
| No chance of "clock drift" since they run at exactly the same pace.
| But on systems like 870, T-class and N-class, the processors are fed clock
| signals from (similar but) different sources.  Each frequency domain will
| slowly drift from the "average" and thus the processor clocks need to be
| resyncronized regularly.
| 

Eh? I can't speak to the T-Class, but N-Class processors (as well as
A,B,C,D,E,F,G,H,I,J,K, and L) all run from a single clock source.  All
of the fundamental problems of clock drift happen between systems, not
interior to a system.  The crystals used are usally 25~50ppm, which
would amount to a second or two per day between systems, which is
significant, but is easily sovled using NTP.

There is no time clock in the processor itself, but rather a register
which is incremented every clock tick. That is why you need to know the
frequency of the processor to convert clock ticks to wall time.  
I believe that there are some wrinkles that can happen in sensing the 
rollover of the interval timer register under all interrupt conditions,
and it may be that this is the 'synchronization' problem that you
are thinking about. But, I don't think that it is due to drift on the
hardware clock circuits.

KMB
--
+============================================================+
|       Kirk Bresniker    	(916) 748-2393		     |
|       8000 Foothills Blvd                                  |
|       Roseville, CA 95747-5649                             |
|       kirkb@rose.hp.com                                    |


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Subject: Re: [parisc-linux] LASI and serial port initialization
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> 2) Use IODC until the console device is "owned" by the appropriate driver
>    and can start taking input/output. 

That is basically the sparc approach. It also works well for bootstrapping
new hardware - nothing claims the console so you can see what happens until
you fix it

> Either 2 or 3 requires some software layer behind printk to change
> behavior at some point. I don't know where that point is or how

Not really. We have register_console() and unregister_console() already
in existance.

Alan




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> 3) buffer the output instead of calling IODC.

This is what Linux does (have a look at kernel/printk.c)


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Subject: Re:  [parisc-linux] LASI and serial port initialization
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We did all three of these at one point or another (in our BSD and Mach).
Our variation on #1 was that we had a separate pseudo-console device that
used a private interface to the drivers.  So the serial driver and STI
(graphics) had cn_init, cn_putc, etc. functions.  cn_init would take
whatever measures necessary to ensure that the HW was setup independent
of the normal kernel HW probe path.  Console_init was called as early as
possible and then called again after the bus walk was done (since that
screwed up the serial port).

On hp300s (long ago!) we had a cn_probe for each possible console device
that was called first thing so we could choose the "highest priority" device
as the console at boot time.  Carrying this approach over to the PA, we
originally had a pdc_console device to do #2.  It was the "default" console
til the real console_init got done.

For our BSD we basically just do #3, buffering output until the real console
comes up and then dumping the buffer before anything else.  The "real
console" in this case is whatever the PDC tells us it is (serial or graphics).

Personally I don't see spending a lot of time worrying about this.  Our
simple console interface with pre-init buffering has been perfectly adequate
for us.  But our PA world is pretty simple, older 700 series machines and
one J-series.  So the console is either the builtin serial port or the
graphics device.  Are there that many more options now?

> To: parisc-linux@thepuffingroup.com
> Date: Tue, 19 Oct 1999 09:30:45 -0700
> From: Grant Grundler <grundler@cup.hp.com>
> Subject: [parisc-linux] LASI and serial port initialization
> 
> Helge and I exchanged some e-mail on the topic of LASI vis a vie
> serial port initialization. Since then, I've come to the conclusion
> all (or most) parisc platforms will have a similar problem.
> 
> The problem is LASI is "discovered" and initialized well after several
> other drivers want to print things to the console. I see a few options
> on how to handle it:
> 1) For each platform, force the console to be the first device "discovered"
>    and initialized. This is not a really good idea since console can be
>    different depending on configuration. Rebuilding the kernel to use
>    a different console doesn't seem reasonable to me. Having the user
>    figure out which devices need to be initialized first and build an
>    appropriate kernel so console works also seems unreasonable.  We are
>    headed down this path now though....
> 
> 2) Use IODC until the console device is "owned" by the appropriate driver
>    and can start taking input/output. 
> 
> 3) buffer the output instead of calling IODC.
>    Size of the buffer will impose some sort of limit.
>    I think this is what HP-UX does but don't really know
>    and it shouldn't matter to us.
> 


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Mike Hibler wrote:
...
> Personally I don't see spending a lot of time worrying about this.  Our
> simple console interface with pre-init buffering has been perfectly adequate
> for us. 

I agree the pre-init buffering is perfectly acceptable. No problem.

> But our PA world is pretty simple, older 700 series machines and
> one J-series.  So the console is either the builtin serial port or the
> graphics device.  Are there that many more options now?

No. But I expect at least two more options by next year.
But even with just two options I think my reasons are valid.

grant

ps. I'm still doing homework to reply to Kirk's response about clock drift.
Short answer is I belive him about N-class and thus don't care if this is
just a T- or possibly V-class problem.

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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On Oct 19, Grant Grundler wrote:
> I agree the pre-init buffering is perfectly acceptable. No problem.

I think the point that many people have noted (regarding ports to new
platforms and seeing data before the console is up) is worth thinking
about.  Why not register an IODC console immediately, and then
register a preferred console once it becomes available?

-Phil


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From: Christopher Beard <chris@thepuffingroup.com>
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I've spent most of the afternoon working on the patches sent in by Thomas
Bogendoerfer, and have extended them to get the kernel working and to a
functional sash prompt. 

Instead of waiting on prumpf and others to finish commiting their code
(which I'm told conflicts with these changes), and not wanting to scramble
the CVS,  I'm going to post a tarball of my kernel tree at:

ftp://puffin.external.hp.com/pub/parisc/src/parisc-linux-src-19991019.tar.gz

And for those you out there who are interested in helping us test the
kernel, I've also posted a functional kernel image, for you try. You can
find it at:

ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/Image-19991019-workingsash

And not wanted to leave much as an excercise for the reader, I've also
posted the ramdisk that I used, which has been extended to include
/dev/console, etc.
 
ftp://puffin.external.hp.com/pub/parisc/binaries/ramdisks/ramdisk.bin-19991019-workingsash

See http://www.thepuffingroup.com/parisc/recipe.html for Grant Grundler's
recipe, which includes a section on how to boot you PA-RISC box with one of
our kernel images.

Chris



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I've figured out the problems with getting Lasi working on my brand
spanking new 712/80, and had to make a more general Lasi hversion and
sversion pattern matching included in lasi.c (to be committed shortly).

I'm trying to make a generic one for RS232, and going through the hardware
table in arch/parisc/kernel/hardware.c, I need to ensure that I don't
conflict with other non-lasi serial ports.  

Something that comes up quite a bit in those entries is WAX.  Is there
actually a serial port on the WAX chip?  What can people tell me about
this chip?

- Alex

-- 
Alex deVries <adevries@thepuffingroup.com>
Vice President Engineering
The Puffin Group


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From: Alex deVries <adevries@thepuffingroup.com>
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Subject: [parisc-linux] What's in a 715?
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I have two 715s now, one's a 715/75, the other a 715/50.

Exactly how's the IO connected on these boxes?  Does it actually have a
Lasi on board?  I had a look inside, and couldn't find anything with the
usual markings of a Lasi, although it might not be integrated.

- Alex

-- 
Alex deVries <adevries@thepuffingroup.com>
Vice President Engineering
The Puffin Group


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From: Ulrich Strelow <ulrich_strelow@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] What's in a 715?
Date: Wed, 20 Oct 1999 00:35:01 -0700 (PDT)
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Hi Alex,

I asked nearly the same question some months ago,
because I needed to understand which CONFIG options
should be set for my 715/33. 

Bill Katz from HP answered:

The 715/33 does NOT have either LASI or DINO. It uses
an older I/O chip known as ASP. ASP connects the
processor bus to several external chips, including the
NCR 53c710, Intel LAN and WD 16C552 (? I'm doing this
from memory) 2-serial/parallel chip. It uses the
PA7100 CPU which does not have GSC. 

And Mike Hibler answered:

We never had a 715/33 so I don't know anything about
them. But someone else said they had the ASP which is
the "original snakes" IO subsystem
(705/710/720/730/750). The ASP is quite similar to the
LASI, and there is plenty of code in the Mach sources.


Hit your HP sources up for: 
Corba/Coral I/O Subsystem External Reference
Specification 

Don't have a part or drawing number unfortunately. We
have version 1.43 from November 1990. Looks like it
came out of Cupertino. 

Hope that helps.
Ulrich 
 

--- Alex deVries <adevries@thepuffingroup.com> wrote:
> 
> I have two 715s now, one's a 715/75, the other a
> 715/50.
> 
> Exactly how's the IO connected on these boxes?  Does
> it actually have a
> Lasi on board?  I had a look inside, and couldn't
> find anything with the
> usual markings of a Lasi, although it might not be
> integrated.
> 
> - Alex
> 
> -- 
> Alex deVries <adevries@thepuffingroup.com>
> Vice President Engineering
> The Puffin Group
> 
>
---------------------------------------------------------------------------
> To unsubscribe: send e-mail to
> parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 

__________________________________________________
Do You Yahoo!?
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From: Matthew Wilcox <Matthew.Wilcox@genedata.com>
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Subject: Re: [parisc-linux] What's in a 715?
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On Wed, Oct 20, 1999 at 12:35:01AM -0700, Ulrich Strelow wrote:
> Hi Alex,
> 
> I asked nearly the same question some months ago,
> because I needed to understand which CONFIG options
> should be set for my 715/33. 
> 
> Bill Katz from HP answered:
> 
> The 715/33 does NOT have either LASI or DINO. It uses
> an older I/O chip known as ASP. ASP connects the
> processor bus to several external chips, including the
> NCR 53c710, Intel LAN and WD 16C552 (? I'm doing this
> from memory) 2-serial/parallel chip. It uses the
> PA7100 CPU which does not have GSC. 

If you open the 715/33 up, it has chips called OLIN and SHINKO on the
board, as well as some unnamed chips.  Do either or both of these chips
implement ASP?  I gave Alex the details on these chips a couple of months
ago and last I heard they were on the list of documents we want from HP,
marked `desirable, but no urgency'.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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On Wed, 20 Oct 1999, Matthew Wilcox wrote:
> On Wed, Oct 20, 1999 at 12:35:01AM -0700, Ulrich Strelow wrote:
> > Bill Katz from HP answered:
> > The 715/33 does NOT have either LASI or DINO. It uses
> > an older I/O chip known as ASP. ASP connects the
> > processor bus to several external chips, including the
> > NCR 53c710, Intel LAN and WD 16C552 (? I'm doing this
> > from memory) 2-serial/parallel chip. It uses the
> > PA7100 CPU which does not have GSC. 

So the conclusion here is that we really can't do 715 support without
hardware documentation on ASP.

> If you open the 715/33 up, it has chips called OLIN and SHINKO on the
> board, as well as some unnamed chips.  Do either or both of these chips
> implement ASP?  I gave Alex the details on these chips a couple of months
> ago and last I heard they were on the list of documents we want from HP,
> marked `desirable, but no urgency'.

IIRC, OLIN and SHINKO are just the chip manufacturers.

I'll remind HP that these docs are on the list.

- Alex


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Subject: Re:  [parisc-linux] a WAX question.
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> Date: Wed, 20 Oct 1999 01:02:52 -0400 (EDT)
> From: Alex deVries <adevries@thepuffingroup.com>
> To: parisc-linux@thepuffingroup.com
> Subject: [parisc-linux] a WAX question.
> 
> ...
> Something that comes up quite a bit in those entries is WAX.  Is there
> actually a serial port on the WAX chip?  What can people tell me about
> this chip?
> 

WAX provides one rs232 port (compatible with NS16550A), HIL, HP-IB and
an "EISA converter."  I know it appears on the 712s, {715,725}/{80,100}
and J210 at the very least.  Doc that we have:

	External Reference Specification for the Wax I/O ASIC
	(aka, the Wax ASIC ERS)
	Rev 1.2, October 7, 1993
	Dwg. No. A-1FT4-9002-1

There is basic support for it in the Mach sources.


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Subject: Re: [parisc-linux] What's in a 715?
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|On Wed, 20 Oct 1999, Matthew Wilcox wrote:
|> On Wed, Oct 20, 1999 at 12:35:01AM -0700, Ulrich Strelow wrote:
|> > Bill Katz from HP answered:
|> > The 715/33 does NOT have either LASI or DINO. It uses
|> > an older I/O chip known as ASP. ASP connects the
|> > processor bus to several external chips, including the
|> > NCR 53c710, Intel LAN and WD 16C552 (? I'm doing this
|> > from memory) 2-serial/parallel chip. It uses the
|> > PA7100 CPU which does not have GSC. 

A little more detail.  In the original snakes (720, 730, 750) the
ASP chip was used to glue everything together, and hooked the NCR
53c700, Intel LAN, WD 552 (serial + parallel) together, and provided
some missing features (DMA for parallel, PA interrupt controller, etc).

This was leveraged into the next generation of snakes (735, 715/33 /50 /75,
750).  I think these also contain "CD quality" audio.  The earlier snakes
had only a beeper.

LASI is the compaction of all of this (including the Intel LAN and 
NCR 53C710) into one ASIC, originally for cost reduction in the 712.

|
|So the conclusion here is that we really can't do 715 support without
|hardware documentation on ASP.

I suspect it will help.

|
|> If you open the 715/33 up, it has chips called OLIN and SHINKO on the
|> board, as well as some unnamed chips.  Do either or both of these chips
|> implement ASP?  I gave Alex the details on these chips a couple of months
|> ago and last I heard they were on the list of documents we want from HP,
|> marked `desirable, but no urgency'.
|
|IIRC, OLIN and SHINKO are just the chip manufacturers.
|
|I'll remind HP that these docs are on the list.

I've got the ERS for the 715s in question, and will try to get it cleaned
up and to John SOntag for reveiw by the lawyers and release.  I'm 
currently laying out a board, so I'm kinda swamped.  I've done the hard part
which is chasing down source code for the thing.  (Took days of digging
through PDM...) Any other HPite that 
wants a stab at it this week should contact me.  It's in Interleaf.

The earliest I could get this done is late next week.

	-Bill


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To: Kirk Bresniker <kirkb@chrome.rose.hp.com>
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Kirk Bresniker wrote:
> Grant Grundler wrote:
> | The processors can run from a "system clock" and they all run synchronous.
> | No chance of "clock drift" since they run at exactly the same pace.
> | But on systems like 870, T-class and N-class, the processors are fed clock
> | signals from (similar but) different sources.  Each frequency domain will
> | slowly drift from the "average" and thus the processor clocks need to be
> | resyncronized regularly.
> | 
> 
> Eh? I can't speak to the T-Class, but N-Class processors (as well as
> A,B,C,D,E,F,G,H,I,J,K, and L) all run from a single clock source.

Kirk is right. T and V also run from a single clock source.
So no problem. I was confusing the discussions with what actually
got implemented.

my apologies,
grant

Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253


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From: Bill Katz "\(William\)" <billk@sr.hp.com>
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Subject: Re:  [parisc-linux] a WAX question.
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|> Date: Wed, 20 Oct 1999 01:02:52 -0400 (EDT)
|> From: Alex deVries <adevries@thepuffingroup.com>
|> To: parisc-linux@thepuffingroup.com
|> Subject: [parisc-linux] a WAX question.
|> 
|> ...
|> Something that comes up quite a bit in those entries is WAX.  Is there
|> actually a serial port on the WAX chip?  What can people tell me about
|> this chip?
|> 
|
|WAX provides one rs232 port (compatible with NS16550A), HIL, HP-IB and
|an "EISA converter."  I know it appears on the 712s, {715,725}/{80,100}
|and J210 at the very least.  Doc that we have:

Wax does have an RS232 port.  It uses the same Megacell as LASI, which
is basically a 16C550.

712s do NOT contain Wax, and have only 1 RS232 port.

Wax provides the second RS232 port, as well as HIL and EISA in 715s,
725s, J200s, J210s, and pretty much any box that has EISA slots.
(Including C110s).  The HPIB support in Wax was never used in a product.

(I used it in a HP internal board, and found I was the first.)

The HIL in WAX is an integration of the HIL chip that was used in 
earlier (pre-PS2) workstations such as 720, 730, 735, early 715s.

It also contains some real-time timers that were originally in another ASIC
in the 742 (50 MHZ, PA7100) VME computer board.  I believe these timers
are also in the TIMI GSC -> VME chip, so they were probably never used
in WAX either.

|
|	External Reference Specification for the Wax I/O ASIC
|	(aka, the Wax ASIC ERS)
|	Rev 1.2, October 7, 1993
|	Dwg. No. A-1FT4-9002-1

THis is also what I have.
|
|There is basic support for it in the Mach sources.

	-Bill


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Subject: Re: [parisc-linux] So you wanna get to a prompt, eh?
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> I've spent most of the afternoon working on the patches sent in by Thomas
> Bogendoerfer, and have extended them to get the kernel working and to a
> functional sash prompt.

> And for those you out there who are interested in helping us test the
> kernel, I've also posted a functional kernel image, for you try. You can
> find it at:

> And not wanted to leave much as an excercise for the reader, I've also
> posted the ramdisk that I used, which has been extended to include
> /dev/console, etc.

Is the ramdisk included in the kernel-image? When I boot the kernel,
I get 'no ramdisk'.

Of course, I don't get further than 'Transferring control to kernel'..
:(
I thought I had a 715, but no, it was a 710 (Bushmaster), and that seems
to make a big difference.

Is anyone working on support for the 700?  I could do some work there,
if it was possible to compile the kernel on linux.  Is anything being
done on that? (What was the problem?)

The Image-990705 kernel worked. What changed from that to Image-990929?

-- 
Magne stlyngen <magne@spacetec.no>
                <magne@skybert.org>


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On Thu, 21 Oct 1999, Magne [iso-8859-1] stlyngen wrote:
> Is the ramdisk included in the kernel-image? When I boot the kernel,
> I get 'no ramdisk'.

To build the kernel right now, you have to download a ramdisk from
ftp://puffin.external.hp.com/pub/parisc/binaries/ramdisks or similiar.

> Of course, I don't get further than 'Transferring control to kernel'..
> :(
> I thought I had a 715, but no, it was a 710 (Bushmaster), and that seems
> to make a big difference.

I had that problem with my 715 too, but there was an alignment mistake
that I made that Philipp fixed yesterday.  You might want to update your
tree and build it again.

> Is anyone working on support for the 700?  I could do some work there,
> if it was possible to compile the kernel on linux.  Is anything being
> done on that? (What was the problem?)

The 700 has an ancient IO architecture that we don't have any
documentation on, so it's not high on the list of priorities.  However, if
someone has patches to support it, we'd be happy to apply them.

As for cross compiling... we're forced to use HPUX because we don't have a
reasonable and functioning cross linker.  More on that later.

- Alex


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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: [parisc-linux] So you wanna get to a prompt, eh?
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On Thu, Oct 21, 1999 at 12:25:15PM +0200, Magne stlyngen wrote:
> Of course, I don't get further than 'Transferring control to kernel'..
> :(
> I thought I had a 715, but no, it was a 710 (Bushmaster), and that seems
> to make a big difference.

the cvs version from friday did only work on the A-class for me. My 715/33
panic very early in the boot process. I only did a quick look and I guess
it's caused by the serial console changes. I've no idea whether this is 
already fixed.

Thomas.

-- 
   This device has completely bogus header. Compaq scores again :-|
It's a host bridge, but it should be called ghost bridge instead ;^)
                                        [Martin `MJ' Mares on linux-kernel]


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From: Christopher Beard <chris@thepuffingroup.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] So you wanna get to a prompt, eh?
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> > Is the ramdisk included in the kernel-image? When I boot the kernel,
> > I get 'no ramdisk'.
> 
> To build the kernel right now, you have to download a ramdisk from
> ftp://puffin.external.hp.com/pub/parisc/binaries/ramdisks or similiar.

You don't need the ramdisk if you are booting from a binary image, you only
need it if you are attempting to build your own from the source tarball
that was posted. The confusion exists in that the bootloader currently
reports:

	Loading PA-RISC/Linux Kernel...
	No ramdisks available.

And then continues along with the boot process.

Support for ramdisks was built into the bootloader, which is likely the
prefered method, however, it has never been used. It is safe to ignore this
for now.
 
Chris


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From: Helge Deller <Helge.Deller@ruhr-uni-bochum.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] So you wanna get to a prompt, eh?
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Am Thu, 21 Oct 1999 schrieb Christopher Beard:
> > > Is the ramdisk included in the kernel-image? When I boot the kernel,
> > > I get 'no ramdisk'.
> > 
> > To build the kernel right now, you have to download a ramdisk from
> > ftp://puffin.external.hp.com/pub/parisc/binaries/ramdisks or similiar.
> 
> You don't need the ramdisk if you are booting from a binary image, you only
> need it if you are attempting to build your own from the source tarball
> that was posted. The confusion exists in that the bootloader currently
> reports:
> 
> 	Loading PA-RISC/Linux Kernel...
> 	No ramdisks available.
> 
> And then continues along with the boot process.
> 
> Support for ramdisks was built into the bootloader, which is likely the
> prefered method, however, it has never been used. It is safe to ignore this
> for now.

Yes, this is correct. I once wrote support for ramdisks loaded by the
bootloader, but this possiblility was never used until now.
If there is interrest for this, then it should be really easy to implement...
More, this method is much faster than the current method to convert
ramdisk.bin to ramdisk.c and then compile & link it statically into the kernel.

Helge Deller

BTW: I will comment out this messages in my next commit. to not get more
confusion on this point !


>  
> Chris
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.


From - Thu Nov 08 21:16:13 2018
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From: Paul Bame <bame@debian.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Boot messages from C3000 console
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Xref: news.gmane.org gmane.linux.ports.parisc:10060


This is long.  Thanks to Alex Williamson for this -

The short answer is once control is apparently transferred to the
kernel, the system dies hard.  Someone who can read PIM dumps
might deduce more from this log.

	-Paul Bame

Information Menu: Enter command > io


I/O MODULE INFORMATION

                                                                     IODC IODC
Path         Decimal     Type                  Location   HVER SVER  Vers Dep
- ------------ ----------- --------------------- ---------- ---- ----  ---- ----
LAN          10/0/12/0   Ethernet              built-in   0060 a200  0x02 0x00
AUDIO        10/0/13/0   Audio                 built-in   
IDE          10/0/14/0   IDE                   built-in   0060 a300  0x00 0x00
SUPERIO MISC 10/0/14/1   Bridge Device         built-in   
SERIAL_1     10/0/14/1/1 RS232 Port            built-in   0060 8c00  0x01 0x00
SERIAL_2     10/0/14/1/2 RS232 Port            built-in   0060 8c00  0x01 0x00
PARALLEL     10/0/14/1/3 Parallel Port         built-in   
USB          10/0/14/2   USB                   built-in   0060 a900  0x98 0x00
SCSI         10/0/15/0   SCSI                  built-in   0060 a300  0x00 0x00
FWSCSI       10/0/15/1   SCSI                  built-in   0060 a300  0x00 0x00
GRAPHICS(2)  10/6/2/0    Display               slot 2     0070 8500  0x01 0x00

Information Menu: Enter command > ma

- ----- Main Menu -------------------------------------------------------------

      Command                           Description
      -------                           -----------
      BOot [PRI|ALT|<path>]             Boot from specified path
      PAth [PRI|ALT|CON|KEY] [<path>]   Display or modify a path
      SEArch [DIsplay|IPL] [<path>]     Search for boot devices

      COnfiguration [<command>]         Access Configuration menu/commands
      INformation [<command>]           Access Information menu/commands
      SERvice [<command>]               Access Service menu/commands

      DIsplay                           Redisplay the current menu
      HElp [<menu>|<command>]           Display help for menu or command
      RESET                             Restart the system
- -----
Main Menu: Enter command > bo lan.15.1.55.151

Interact with IPL (Y, N, Q)?> n



Booting... 
Network Station Address 001083-354faa

System IP Address 15.1.52.165
Server IP Address 15.1.55.151


Boot IO Dependent Code (IODC) revision 2




HARD Booted.


- ------------------------------------------------------------------------------

PARISC/Linux Bootstrap Version 0.6 (non-interactive)
By Helge Deller & Jason Eckhardt
Built Thu Oct 21 12:03:52 MDT 1999 by bame@burmese

Reading parameters...done.

Loading PA-RISC/Linux Kernel...
No ramdisks available.
SOM-Kernel:
aux_header_location: 00000080
som       : 00200080
exec_dfile: 000DD000
exec_dsize: 00084000
exec_dmem : C00A9000
exec_tfile: 00044000
exec_tsize: 00098008
exec_tmem : C0010000
Code at 0x00010000, size=0x00098008
Data at 0x000A9000, size=0x00084000
BSS  at 0x0012D000.

Transferring control to kernel. (At entry point 0x00010000)



Firmware Version 1.8


Duplex Console IO Dependent Code (IODC) revision 1

- ------------------------------------------------------------------------------

   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved

- ------------------------------------------------------------------------------


  Processor   Speed            State           Coprocessor State  I/D Cache 

  ---------  --------   ---------------------  -----------------  -------------

      0      400 MHz    Active                 Functional         512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:              805306368 bytes
  Good memory required:           82538496 bytes

  Primary boot path:    FWSCSI.6.0
  Alternate boot path:  SCSI.6.0
  Console path:         GRAPHICS(2)
  Keyboard path:        USB


CPU 0
WARNING:  Self tests have been disabled as a result of FASTBOOT
          being enabled.  To enable self tests, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.
WARNING:  Memory has been initialized, but not tested as a result of
          FASTBOOT being enabled.  To test memory, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.



Processor is starting auto boot process.


To discontinue, press any key within 10 seconds.


Boot terminated.

~`x

- ----- Main Menu -------------------------------------------------------------

      Command                           Description
      -------                           -----------
      BOot [PRI|ALT|<path>]             Boot from specified path
      PAth [PRI|ALT|CON|KEY] [<path>]   Display or modify a path
      SEArch [DIsplay|IPL] [<path>]     Search for boot devices

      COnfiguration [<command>]         Access Configuration menu/commands
      INformation [<command>]           Access Information menu/commands
      SERvice [<command>]               Access Service menu/commands

      DIsplay                           Redisplay the current menu
      HElp [<menu>|<command>]           Display help for menu or command
      RESET                             Restart the system
- -----
Main Menu: Enter command > ser pim



PROCESSOR PIM INFORMATION



- -----------------  Processor 0 HPMC Information ------------------


Timestamp = 
  Thu Oct  21 20:18:08 GMT 1999    (19:99:10:21:20:18:08)

HPMC Chassis Codes = 2cbf0  2500b  2cbf5  2cbfc  

General Registers 0 - 31
00-03   0000000000000000  ffffffffffffffff  00000000000100c4  0000000000504000
04-07   0000000000504010  0000000000504000  0000000000000048  00000000f0002f88
08-11   0050427700000002  000000000000004d  000000000012c320  000000000000000a
12-15   0000000000000000  00000000ffffffff  0000000000000000  00000000f0400004
16-19   000000f0f00008a4  000000f0f0000160  000000f0f0000158  fffffffffff80810
20-23   0000000003000000  0000000000001000  0000000000000000  00000000000c0000
24-27   0000000000000000  0000000000000001  00000000c0159610  ffffffffc00a8000
28-31   ffffffffffffffff  00000000000ac948  00000000000ac400  0200000000000204

<Press any key to continue (q to quit)> 


Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  000000000000003c
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000001d9f33c26d  0000000000000000  0000000000010184  000000000e601181
20-23   00000000a627ffff  c0000000e0380810  0000000000000009  0000000080000000
24-27   00000000fdffffff  00000000ffffffff  0000000000000002  0000000008000009
28-31   00000000fdffffff  00000000ffffffff  00000000fdffffff  00000000fdffffff
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

<Press any key to continue (q to quit)> 

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000010188
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030103b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000fffff80810
System Requestor Address     = 0x000000fffffa0000

Floating-Point Registers 0 - 31
00-03   ffd00fbfffffffdf  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
04-07   ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
08-11   ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
12-15   ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
16-19   ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
20-23   ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
24-27   ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
28-31   ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff

<Press any key to continue (q to quit)> 


'B1000/C3000/J5000/J7000 Unarchitected (per-CPU)', revision 1, 140 bytes:

Check Summary                = 0xcb81041008000000
Available Memory             = 0x0000000030000000
CPU Diagnose Register 2      = 0x0200000000000204
CPU Status Register 0        = 0x2420c20000000000
CPU Status Register 1        = 0x8002000000000000
SADD LOG                     = 0x0000000000000000
Read Short LOG               = 0xc1af00fffff80810
ERROR_STATUS                 = 0x0000000000100010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0xc1bff0fffed08040
RUN_DATA_LOW                 = 0xc1bff0fffed08040
RUN_CTRL                     = 0x0000021c00001418
RUN_ADDR                     = 0xc1bff0fffed08040
System Responder Path        = 0x00ffffffffffffff

<Press any key to continue (q to quit)> 


- -----------------  Processor 0 LPMC Information ------------------


Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



- -----------------  Processor 0 TOC Information -------------------


General Registers 0 - 31
00-03   0000000000000000  000000f0f0093000  000000f0f000b658  00000000000f4240
04-07   00000020317d230d  0000000000000004  000000f0f0407aa8  0000000000000000
08-11   000000f0f0407aa8  000000000000004d  000000000012c320  000000000000000a
12-15   0000000000000000  00000000ffffffff  0000000000000000  00000000f0400004
16-19   000000f0f00008a4  000000f0f0000160  000000f0f0000158  000000f0f0077270
20-23   000000f0f05f0068  0000000000000004  0000000000000008  000000f0f003c3ac
24-27   0000000009f9c6f0  000000003d090000  0000000017d78400  000000f0f0412000
28-31   0000000017d78400  0000000000000008  000000f0f0407d68  000000f0f00772f0

<Press any key to continue (q to quit)> 


Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000005
12-15   0000000000000000  0000000000000000  000000f0f0003800  0000000000000000
16-19   000000203b7aaa7c  00000000000000f0  000000f0f000b664  00000000020008b8
20-23   000000009237c3c1  0000000001c07d10  000000ff0809cf08  0000000080000000
24-27   00000000fdffffff  00000000ffffffff  0000000000000002  0000000008000009
28-31   00000000fdffffff  00000000ffffffff  00000000fdffffff  00000000fdffffff
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x00000000000000f0
IIA Offset                   = 0x000000f0f000b65c
CPU State                    = 0x0000004d


<Press any key to continue (q to quit)> 


Memory Error Log Information:


Timestamp = 
  Thu Oct  21 20:18:08 GMT 1999    (19:99:10:21:20:18:08)


'B1000/C3000/J5000/J7000 Memory Error Log', revision 0, 64 bytes:

   No memory errors logged




I/O Module Error Log Information:


Timestamp = 
  Thu Oct  21 20:18:08 GMT 1999    (19:99:10:21:20:18:08)


'B1000/C3000/J5000/J7000 IO Error Log', revision 0, 228 bytes:

 Rope     Word1        Word2            Word3
- ------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc009   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    0x00000000   0x4e0cc009   0x00000000fed38048
   5    ----------   0x5e0cc009   ------------------
   6    0x00000000   0x6e0cc009   0x00000000fed3c048
   7    ----------   0x7e0cc009   ------------------
Main Menu: Enter command > 
- --------------6D46321F53F67470D064CBF0--



------- End of Forwarded Message


From - Thu Nov 08 21:16:13 2018
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From: Stan Sieler <sieler@allegro.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot messages from C3000 console
Date: Thu, 21 Oct 1999 14:24:30 -0700 (PDT)
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To: bame@debian.fc.hp.com (Paul Bame)
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Xref: news.gmane.org gmane.linux.ports.parisc:10061

Re:

Don't know if this helps at all...

> kernel, the system dies hard.  Someone who can read PIM dumps
> might deduce more from this log.
...
> HPMC Chassis Codes = 2cbf0  2500b  2cbf5  2cbfc  

In a possibly not-quite-matching manual:

   cbf0 = HPMC occurred
   500b = bus timeout (slot 0, bus 0)
   cbf5 = IVA+32 was equal to 0
   cbfc = branch to os HPMC failed
 
> General Registers 0 - 31
> 00-03   0000000000000000  ffffffffffffffff  00000000000100c4  0000000000504000
> 04-07   0000000000504010  0000000000504000  0000000000000048  00000000f0002f88
> 08-11   0050427700000002  000000000000004d  000000000012c320  000000000000000a
> 12-15   0000000000000000  00000000ffffffff  0000000000000000  00000000f0400004
> 16-19   000000f0f00008a4  000000f0f0000160  000000f0f0000158  fffffffffff80810
> 20-23   0000000003000000  0000000000001000  0000000000000000  00000000000c0000
> 24-27   0000000000000000  0000000000000001  00000000c0159610  ffffffffc00a8000
> 28-31   ffffffffffffffff  00000000000ac948  00000000000ac400  0200000000000204
> 
> <Press any key to continue (q to quit)> 
> 
> 
> Control Registers 0 - 31
> 00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11   0000000000000000  0000000000000000  0000000000000000  000000000000003c
> 12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 16-19   0000001d9f33c26d  0000000000000000  0000000000010184  000000000e601181
> 20-23   00000000a627ffff  c0000000e0380810  0000000000000009  0000000080000000
> 24-27   00000000fdffffff  00000000ffffffff  0000000000000002  0000000008000009
> 28-31   00000000fdffffff  00000000ffffffff  00000000fdffffff  00000000fdffffff
> Space Registers 0 - 7
> 
> 00-03   00000000          00000000          00000000          00000000
> 04-07   00000000          00000000          00000000          00000000
> 
> IIA Space                    = 0x0000000000000000
> IIA Offset                   = 0x0000000000010188
...
> System Responder Address     = 0x000000fffff80810
> System Requestor Address     = 0x000000fffffa0000


CR19 (IIR) = e601181 = LDWAS    0(0,19),1

So, looks like an absolute load was being done, using R19 as the address:

   R19 = fffffffffff80810

The "System Responder Address", whatever that is, is 0x000000fffff80810
which is suspciciously similar to what's in R19.

SS


From - Thu Nov 08 21:16:14 2018
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From: Frank Rowand <frank_rowand@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot messages from C3000 console
Date: Thu, 21 Oct 1999 15:05:45 -0700
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Paul Bame wrote:
> 
> This is long.  Thanks to Alex Williamson for this -
> 
> The short answer is once control is apparently transferred to the
> kernel, the system dies hard.  Someone who can read PIM dumps
> might deduce more from this log.
> 
>         -Paul Bame


Look in the IO ARS, under PDC_PIM() for info on decoding this stuff.
I'll decode a couple of key words, but I have to run to a meeting.


> Main Menu: Enter command > ser pim
> 
> PROCESSOR PIM INFORMATION
> 
> - -----------------  Processor 0 HPMC Information ------------------
> 
> Timestamp =
>   Thu Oct  21 20:18:08 GMT 1999    (19:99:10:21:20:18:08)
> 
> HPMC Chassis Codes = 2cbf0  2500b  2cbf5  2cbfc
> 
> General Registers 0 - 31
> 00-03   0000000000000000  ffffffffffffffff  00000000000100c4  0000000000504000
> 04-07   0000000000504010  0000000000504000  0000000000000048  00000000f0002f88
> 08-11   0050427700000002  000000000000004d  000000000012c320  000000000000000a
> 12-15   0000000000000000  00000000ffffffff  0000000000000000  00000000f0400004
> 16-19   000000f0f00008a4  000000f0f0000160  000000f0f0000158  fffffffffff80810
> 20-23   0000000003000000  0000000000001000  0000000000000000  00000000000c0000
> 24-27   0000000000000000  0000000000000001  00000000c0159610  ffffffffc00a8000
> 28-31   ffffffffffffffff  00000000000ac948  00000000000ac400  0200000000000204
> 
> <Press any key to continue (q to quit)>
> 
> Control Registers 0 - 31
> 00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11   0000000000000000  0000000000000000  0000000000000000  000000000000003c
> 12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 16-19   0000001d9f33c26d  0000000000000000  0000000000010184  000000000e601181
> 20-23   00000000a627ffff  c0000000e0380810  0000000000000009  0000000080000000
> 24-27   00000000fdffffff  00000000ffffffff  0000000000000002  0000000008000009
> 28-31   00000000fdffffff  00000000ffffffff  00000000fdffffff  00000000fdffffff
> Space Registers 0 - 7
> 
> 00-03   00000000          00000000          00000000          00000000
> 04-07   00000000          00000000          00000000          00000000
> 
> <Press any key to continue (q to quit)>
> 

This should be the address of the instruction that caused the HPMC.  Use adb
against the kernel to see what this instruction is.  Then you'll probably
need to use the contents of the general registers above to figure out what
was going on:
> IIA Space                    = 0x0000000000000000
> IIA Offset                   = 0x0000000000010188

Bus check:
> Check Type                   = 0x20000000


> CPU State                    = 0x9e000004
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000

Read timeout:
> Bus Check                    = 0x0030103b

> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000

Someone needs to look at an address map to see what address was being accessed:
> System Responder Address     = 0x000000fffff80810

cpu 0 is the requestor:
> System Requestor Address     = 0x000000fffffa0000



Off to the meeting...

-Frank Rowand


From - Thu Nov 08 21:16:14 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Boot messages from C3000 console
Date: Thu, 21 Oct 1999 15:51:58 -0700
Lines: 95
Approved: news@gmane.org
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Paul Bame wrote:
> The short answer is once control is apparently transferred to the
> kernel, the system dies hard.  Someone who can read PIM dumps
> might deduce more from this log.

I can't find a PIM decoder for the C3000....I'll try the J5000
decoder later. Here's a few more notes by hand.
I saw Stan Sieler's reply and can fill in a few more gaps.

> HPMC Chassis Codes = 2cbf0  2500b  2cbf5  2cbfc

The bus time-out suggests the processor tried to access
0xfffff80810 and no device lives there.  The processor saw
an error condition (bus timeout) and brought the system down.

...
> IIA Space                    = 0x0000000000000000
> IIA Offset                   = 0x0000000000010188
> Check Type                   = 0x20000000
> CPU State                    = 0x9e000004
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x0030103b
> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0x000000fffff80810
> System Requestor Address     = 0x000000fffffa0000

Responder is the address which was supposed to respond.
Requestor is the address of the device which started the transaction.
I would guess 0xff_fffa0000 is the processor.

What's at 0xff_fff80000?
And which driver uses offset 0x810?
(card-mode Dino does....but am pretty sure the kernel didn't get that far.)


This is the interesting part:

> 'B1000/C3000/J5000/J7000 Unarchitected (per-CPU)', revision 1, 140 bytes:
> 
> Check Summary                = 0xcb81041008000000
> Available Memory             = 0x0000000030000000
> CPU Diagnose Register 2      = 0x0200000000000204
> CPU Status Register 0        = 0x2420c20000000000
> CPU Status Register 1        = 0x8002000000000000
> SADD LOG                     = 0x0000000000000000
> Read Short LOG               = 0xc1af00fffff80810
	This is another copy of the offending address.

> ERROR_STATUS                 = 0x0000000000100010
	Broad Error on the Runway Bus
	
> MEM_ADDR                     = 0x000001ff3fffffff
> MEM_SYND                     = 0x0000000000000000
> MEM_ADDR_CORR                = 0x000001ff3fffffff
> MEM_SYND_CORR                = 0x0000000000000000
	No memory problems.

> RUN_DATA_HIGH                = 0xc1bff0fffed08040
> RUN_DATA_LOW                 = 0xc1bff0fffed08040
	Last data on runway before the error.
	0xFF_FEDO_8000 is runway bus interface register space.

> RUN_CTRL                     = 0x0000021c00001418
> RUN_ADDR                     = 0xc1bff0fffed08040
	Last ctrl/addr on the runway bus before the error.

> System Responder Path        = 0x00ffffffffffffff
	NULL path - default value. Not PCI related.
...


On K/T-class system, the I/O error log was invaluable.
Not sure how useful it is on this set of boxes.
I'm sure we'll see.

> 'B1000/C3000/J5000/J7000 IO Error Log', revision 0, 228 bytes:
> 
>  Rope     Word1        Word2            Word3
> - ------ ------------ ------------
>    0    0x00000000   0x0e0cc009   0x00000000fed30048
>    1    0x00000000   0x1e0cc009   0x00000000fed32048
>    2    ----------   0x2e0cc009   ------------------
>    3    ----------   0x3e0cc009   ------------------
>    4    0x00000000   0x4e0cc009   0x00000000fed38048
>    5    ----------   0x5e0cc009   ------------------
>    6    0x00000000   0x6e0cc009   0x00000000fed3c048
>    7    ----------   0x7e0cc009   ------------------

Grant Grundler
Unix Developement Lab
+1.408.447.7253


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From: Paul Bame <bame@debian.fc.hp.com>
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Subject: [parisc-linux] boot loader
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Here's a sketch of a new (really, mostly stolen from other places
like the existing boot_code code) boot loader for parisc.  It's
aimed at solving some of our current problems (like linking ramdisks
into the kernel) and being good enough to live on for a while,
and be easily replaced if it starts to smell bad.

In order to use HP boot firmware, our disk layout has to look
at least somewhat like a LIF volume (as it does today), so it
makes sense to use LIF for a few other things too.  LIF is a
very simple file system layout -- almost as simple as the one
we were going to use for ramdisks.

My proposal is to have a LIF volume on the beginning of any disk
from which one might boot.  Make that LIF volume at least 2Mb, and
maybe 10Mb if you want to store several kernels and ramdisk images.
Here are the files it would hold:

	IPL		Pretty much the boot loader we're using today
			with some LIF intelligence added
	vmlinuz		The kernel image, put there with the 'lifcp'
			command.  Could have several kernels
			on the LIF volume and boot any of them.
	cmdline		The default, or the last?, command line used
			to boot Linux.  Could possibly have several
			different command lines in one or several files
			but the UI for this needs thought.
	ramdisk		One or more files containing ramdisk images
	ptable		Partition table -- see below

During boot, the IPL is same as today.  It presents a
command line just like today, from the 'cmdline' file if one is
available.  On the command line you can select which kernel to
boot if you have more than one and enter the normal Linux
command-line parameters.  There'll be some little extension to handle
specifying which ramdisk image you want, which is stripped off
by the IPL and not passed to the kernel in that form.  The HP
firmware would continue to be used, as it is today, to select whether
you want to interact with the boot loader command line or not.

When the command line is committed, the ramdisk and kernel are loaded
just like they are today (using the same code probably) the kernel
is told how to find the ramdisk image (need to learn how this is done).

Non-bootable disks can skip the LIF volume header altogether, though
they might want it just in case they want to be bootable in the future.

			Partition Table

I suggest we place the partition table at a fixed low address on
the disk such that it can appear as a file in the LIF file system
on disks which have them, and be in the same location on non-LIF
disks just there wouldn't be any LIF sugar around it.  This way
the table's always in the same place which is easy for the tools
which use it, and it's a LIF file too which might be convenient.
Alex suggests we re-use maybe the sparc partition table format?

			Development Cycle

After building a new kernel, you'd have to
'lifcp <the-kernel-image> /dev/sda:vmlinuz' instead of
doing 'mkImage' like we do today.  It's also cool that the ramdisk
isn't linked into the kernel.

		    If you already have HP-UX

The existing HP-UX LIF volume header has less than 300k of free
space, so it wouldn't be large enough to hold vmlinuz, therefore
you can't boot from an existing HP-UX volume.  Which means if
you want to keep your HP-UX disk intact, you'll have to add another
disk for Linux, and I think the firmware can handle booting from
one of several disks just fine.

			    Tools

lifinit and lifcp should already be able to handle the LIF stuff, so
no new C code required to build the LIF volumes.  We can probably
talk HP into open sourcing the LIF commands, and if not can grab
the ones from OpenBSD.  For now we can use the ones on HP-UX.
[I suspect the HP ones are not byte-order safe (yet).]

			    Future

It's relatively easy to replace IPL (and vmlinuz for that matter)
in the scheme above with wonderful new stuff when we figure out
what that is.  The firmware and existing disk headers wouldn't
have to change to accomodate a new boot loader.

			    The Name

BTW the current contender for the name, instead of hilo, is palo
for PArisc LOader.  It is also a reminder of of Palo Alto
which is where HP began.

Comments?

			    -Paul Bame


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From: Frank Rowand <frank_rowand@hp.com>
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Subject: Re: [parisc-linux] Boot messages from C3000 console
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Paul Bame wrote:
> 
> This is long.  Thanks to Alex Williamson for this -
> 
> The short answer is once control is apparently transferred to the
> kernel, the system dies hard.  Someone who can read PIM dumps
> might deduce more from this log.
> 
>         -Paul Bame

< detailed HPMC info deleted>


We found it...

I'm cutting this from another discussion, don't feel like re-typing it.
The file we are talking about (giving line number references) is head.S.
We calculated the the offending offset was at label "blargh" plus a bit.

The following discussion talks about how we get to the code section
where the HPMC occurs.  Earlier, we talked about hard-coding magic
addresses, which are machine specific (that's in the macro "debug",
which is what actually caused the HPMC -- line 162).


<ggg> I was looking at how we get to blargh and don't get it. Only one
  location branches there.
> yes, it compares r28 to zero
> ah, r28 is the return value from the procedure called from line 265 (duhhhh)
> r1 is loaded at line 251 (the value of MEM_PDC, from page zero)
> That should be the entry point to PDC.
> So there's an error returned by the pdc call at line 265.
> calling PDC_BLOCK_TLB().  [arg0 = 18].  PDC_BLOCK_TLB doesn't exist on a
  PA2.0 server (and I assume the same for workstations), because block TLB
  entries don't exist, we have variable size pages instead.


Then I get a little incensed at the coding style here.... (editing out other
people's responses to my tirade)


> This is a **bogus** way to write code.  Comments should be required!!!!!! 
  Is there any way to encourage that?
> But I'm *extremely* serious about that.  This code is unmaintainable in it's
  current form.  It's going to be miserable adding 2.0 support to something
  like that.
> it's important to anyone who would like to pick up head.S and be able to
  read it.  To decode the procedure call I had to know where to find
  documentation for page zero, know what PDCE_PROC is, figure out what PDC
  procedure was being called.
> For me, it was about 45 seconds instead of the two seconds it would take to
  read a comment.
> For someone who doesn't have my background, it could be hours.


Ok, tirade mode off.  This is where my newbie status becomes apparent.  Please
excuse any foot in mouth here.  I looked at the Puffin web page and didn't
notice anything about the process of making sure that code that is submitted
has some minimal level of quality.  Is it just a matter of the community
applying peer pressure?

-Frank Rowand


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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: [parisc-linux] boot loader
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Hi,

> My proposal is to have a LIF volume on the beginning of any disk
> from which one might boot.  Make that LIF volume at least 2Mb, and
> maybe 10Mb if you want to store several kernels and ramdisk images.
> Here are the files it would hold:
> 
> 	IPL		Pretty much the boot loader we're using today
> 			with some LIF intelligence added
> 	vmlinuz		The kernel image, put there with the 'lifcp'
> 			command.  Could have several kernels
> 			on the LIF volume and boot any of them.
> 	cmdline		The default, or the last?, command line used
> 			to boot Linux.  Could possibly have several
> 			different command lines in one or several files
> 			but the UI for this needs thought.
> 	ramdisk		One or more files containing ramdisk images
> 	ptable		Partition table -- see below

As long as you don't want to use LIF utilities to access those files,
lowercase should be okay.

The LIF tools won't accept lowercase filenames.
Why care?  Because you could possibly boot HP-UX and use the LIF tools 
to manipulate the vmlinuz file, for example.

Example:  

   Oz(su) /: lifcp test /dev/dsk/c0t0d0:vmlinuz
   lifcp: Cannot create vmlinuz   ; improperly formatted LIF name
   Oz(su) /:

(BTW, the lifcp "-t" option won't help)

I'd suggest using uppercase, and making the IPL smart enough
to allow user-entry of lowercase (which gets mapped to uppercase)

> After building a new kernel, you'd have to
> 'lifcp <the-kernel-image> /dev/sda:vmlinuz' instead of
> doing 'mkImage' like we do today.  It's also cool that the ramdisk
> isn't linked into the kernel.

Note: my lifcp test was on 10.20
 
> lifinit and lifcp should already be able to handle the LIF stuff, so
> no new C code required to build the LIF volumes.  We can probably
> talk HP into open sourcing the LIF commands, and if not can grab
> the ones from OpenBSD.  For now we can use the ones on HP-UX.
> [I suspect the HP ones are not byte-order safe (yet).]

If that happens, we could support lowercase.
 
> 			    The Name
> 
> BTW the current contender for the name, instead of hilo, is palo
> for PArisc LOader.  It is also a reminder of of Palo Alto
> which is where HP began.

Great name!
 
-- 
Stan Sieler                                          sieler@allegro.com
                                         http://www.allegro.com/sieler/


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Subject: [parisc-linux] Updated to 2.4.1
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i've just merged 2.4.1 into our tree.  expect this to be a regular
occurrence during the 2.4.x series.  No major changes to note, over
Linus' changes.  I hear that ReiserFS doesn't work on big-endian
systems, so nothing to get excited about.

-- 
Revolutions do not require corporate support.


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On 29 Jan, Grant Grundler wrote:

> 
> register_fallback_cpu() was one of the functions used by older HW
> that I was not able to test. If anyone has time to pull a new kernel
> and play with it, that would be good. Please let me know ASAP, if I
> broke it. I'm happy to help fix it again.

I just tried a freshly built kernel cvs updated two hours ago and is
crashed with a stack dump right after the serial driver sign on message.

I have a 715/old

/Daniel
-- 



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5116@telia.com wrote:
> I just tried a freshly built kernel cvs updated two hours ago and is
> crashed with a stack dump right after the serial driver sign on message.

Nice. If you post the console output here, I might be able to help.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253


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---1463811727-1681692777-980894855=:32268
Content-Type: TEXT/plain; CHARSET=US-ASCII

On 30 Jan, Grant Grundler wrote:
> 5116@telia.com wrote:
>> I just tried a freshly built kernel cvs updated two hours ago and is
>> crashed with a stack dump right after the serial driver sign on message.
> 
> Nice. If you post the console output here, I might be able to help.
> 
OK, here we go.

/Daniel
-- 


---1463811727-1681692777-980894855=:32268
Content-Type: TEXT/plain; CHARSET=US-ASCII
Content-Disposition: attachment ; filename="fail.cap"

Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize          d
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI en

Dumping Stack from c2fcc000 to c2fcca80:
c000 00000000 00000040 00000000 00000000 c026f320 00000001 00000000 ffffffff
c020 00000000 00000000 00000000 00000000 00000000 00000000 ffffffff c026f1e4
c040 c026f1e4 00000029 c2fc0000 c02a0000 c027460c 00000000 00000000 00000000
c060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 00000000
c080 00000000 c02a0000 c02a0000 c2fb0000 00000000 00000000 c2fb0098 c02a0098
c0a0 00000000 c02bc118 00000000 c2fcc0ac c2fcc0ac c2fcc908 00000000 00000000
c0c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c0e0 c2fcc000 c011aa98 00000000 00000009 00000000 00000000 00000023 00000000
c100 0000002c 00000000 00000000 00000000 00000000 00000000 00000000 80000000
c120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1c0 00000000 fffffeff 00000000 ffffffff 00000000 c026ffcc ffffffff ffffffff
c1e0 ffffffff ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff
c200 ffffffff ffffffff 00000300 00000300 00000400 00000400 ffffffff ffffffff
c220 ffffffff ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000
c240 00000000 00000000 00000000 00000000 00000000 00000000 00003000 0198420b
c260 00000000 c0142768 00008000 c2ffeca0 c021ac4c c022b9cc fc4ff000 00504cf0
c280 00000000 c0117334 c02ba800 00003000 0198420b c02ba800 00000000 0004000a
c2a0 c026f354 0000000b 00000024 0000003c 0000003e c026f000 00000001 00000000
c2c0 c01002bc c02a6ca3 00000000 c02a6cc7 0000000b c026f354 c026f000 08000059
c300 002a6700 c025a000 00000000 00e4e1c0 c02a08c0 00000060 0000001f 00000000
c340 00000000 00000000 00000000 00000000 40800000 00000000 ffd5b580 ffd5b580
c380 41800000 00000000 00000010 00000010 00000000 00000000 ffd5b580 ffd5b580
c3c0 ffd5b580 ffd5b580 40800000 00000000 41000000 00000000 40300000 00000000
c400 40000000 00000000 40800000 00000000 41000000 00000000 00000000 00000000
c440 c0117320 c0117324 40800000 00000000 00275000 00000000 c0274040 c0274064
c480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4c0 107f0021 c2fcc50c 81a40001 00000000 00000000 00000000 c026d458 c026d418
c500 c02a0000 00000000 c02a0640 bb0008b8 00008000 00000040 00009b2c 00000002
c540 00000003 bb000808 c2ff9bc0 c2ff9bc4 c2fcc000 c027460c c02a0000 00000000
c580 bb000788 00009b2c 00000000 00009b2c 00009c24 00009c24 00000000 00000000
c5c0 00000001 c0278000 00000005 00065465 00000002 00000001 00000001 c0248b34
c600 00000004 08000059 00000000 00000000 f0001244 000ff000 001a5a59 c0289830
c640 c029ddec c029ddb4 00000000 00000000 000ff000 001a5a59 c0289830 0004000a
c680 c02b7ee4 c02b7fa0 c027c304 00000040 c0237d1c c0237908 c02379c4 c0237d20
c6c0 10000080 c02b7ee4 c02b7fa0 c027c304 00000040 c2ffd0c0 c0237800 c0237800
c700 c027c304 00000040 c0237a7c c027e2c4 c0237800 00000000 c02b7ee4 c02b7ee4
c740 c02bbfe4 00000000 c027c3d4 c02bbfe0 00000000 0000003c 0000003e c026f000
c780 c2fc88ec 00008124 00000004 000000ff 00000060 00000060 00000001 00000002
c7c0 0000001f 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c800 ffd5b580 ffd5b580 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
c840 0006000b c02a6740 c019791c c02b7ee0 00000013 0000002f c02b8cc4 c027c3d4
c880 c0237800 c0237800 c02b7f24 00000000 c02b8cc4 c02bb800 ffffffff 00000040
c8c0 0000001f 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c900 ffd5b580 ffd5b580 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
c940 ffd5b580 ffd5b580 41000000 00000000 40800000 00000000 ffd5b580 ffd5b580
c980 40300000 00000000 40200000 00000000 40200000 00000000 41800000 ffd5b580
c9c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ca00 00000000 00000000 00000001 00000020 00000001 0e781096 00000000 0000000c
ca40 80000000 c02bc000 c2fcc740 00000020 00000000 00000000 c027068c 00000007


PSW: 00000000000001100000000000001011
r4-7     00000013 0000002f c02b8cc4 c027c3d4
r12-15   fffffffc c0237800 c0237800 c02c9584
r20-23   c02b8cc4 c02bb800 ffffffff 00000040
r28-31   00002580 0000002f c2fcca80 c0290e38
sr4-7    00000000 00000000 00000000 00000000
IASQ: 00000000 00000000 IAOQ: c010cc7c c010cc80
ORIG_R28: 00000000

---1463811727-1681692777-980894855=:32268--


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Subject: Re: [parisc-linux] register_fallback_cpu()
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> OK, here we go.
> 
> /Daniel
There seems that there was a cut and paste error in my last mail, 

the line:
 
Data acces fault in kernel: Code=26 regs=c2fcc840 (Addr=0000000c)

was supposed to be between the stack and register dump.

/Daniel
-- 



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5116@telia.com wrote:

> OK, here we go.
...
> PSW: 00000000000001100000000000001011
> r4-7     00000013 0000002f c02b8cc4 c027c3d4
> r12-15   fffffffc c0237800 c0237800 c02c9584
> r20-23   c02b8cc4 c02bb800 ffffffff 00000040
> r28-31   00002580 0000002f c2fcca80 c0290e38
> sr4-7    00000000 00000000 00000000 00000000
> IASQ: 00000000 00000000 IAOQ: c010cc7c c010cc80
> ORIG_R28: 00000000

*sigh*.
Is this an unusual parisc processor in that it doesn't have r0-3?
Or r8-11?

Can you post the *whole* output?
Starting from BOOT_ADMIN> prompt?

Oh...and unless you are using the default config file,
I'll need that too.

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253


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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Weird compile problems
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On Tue, 30 Jan 2001, Paul J.Y. Lahaie wrote:

[about pehc CVS devel branch gcc]
> And fixincl (the progrma that does the subst) is taking 0% CPU (from top)
> 10727 pjlahaie   9   0   712  712   520 S      20  0.0  0.5   0:00 fixincl

Yeah, fixincl dies for me too.  I'd been putting it down to some sort of
kernel problem, and just disabled fixinc (gcc/Makefile:STMP_FIXINC).
Other than that, I get a successful bootstrap, and both kernel & glibc
compile natively - except that `make' died randomly in the glibc build,
and I currently have a ld.so.1 that segfaults.

Hmm, looking at what I just wrote, you can hardly call it a "successful
bootstrap".  I'm investigating the ld.so.1 problem - at least that one is
reproducable.

Alan
-- 
Linuxcare.  Support for the Revolution.


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Xref: news.gmane.org gmane.linux.ports.parisc:10074


Alan Modra writes...

> On Tue, 30 Jan 2001, Paul J.Y. Lahaie wrote:
> 
> [about pehc CVS devel branch gcc]
> > And fixincl (the progrma that does the subst) is taking 0% CPU (from top)
> > 10727 pjlahaie   9   0   712  712   520 S      20  0.0  0.5   0:00 fixincl
> 
> Yeah, fixincl dies for me too.  I'd been putting it down to some sort of
> kernel problem, and just disabled fixinc (gcc/Makefile:STMP_FIXINC).
> Other than that, I get a successful bootstrap, and both kernel & glibc
> compile natively - except that `make' died randomly in the glibc build,
> and I currently have a ld.so.1 that segfaults.

I suspect that your make actually died during the make install right? This is 
the problem that John Marvin and I are working on. The pthread changes that he 
made broke things that use librt and libpthread. In our current nfsroot that 
is tar, make, and sleep. For now we're using a static make to complete the 
install. Once I have a new glibc package built I will do new new 
make,tar,sleep stuff too.

> Hmm, looking at what I just wrote, you can hardly call it a "successful
> bootstrap".  I'm investigating the ld.so.1 problem - at least that one is
> reproducable.

I was seeing that here too but John wasn't. We're currently trying to 
determine the differences in our build environments. What system are you 
building on and what nfsroot/kernel are you using?

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation




From - Thu Nov 08 21:16:14 2018
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Weird compile problems
Date: Wed, 31 Jan 2001 12:01:16 +1100 (EST)
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	Jeffrey A Law <law@redhat.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:10075

On Wed, 31 Jan 2001, Alan Modra wrote:

> and I currently have a ld.so.1 that segfaults.

r19 is being trashed.  It's a compiler bug.  One I added too. :-(

At least, it's to do with the new scheme of allowing gcc to allocate a
register to save r19 rather than trying to use a fixed register.  From a
quick glance over disassembled code, it seems that inline functions try
to restore r19 from a register that has never been initialised.

Alan
-- 
Linuxcare.  Support for the Revolution.





From - Thu Nov 08 21:16:15 2018
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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Weird compile problems
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Xref: news.gmane.org gmane.linux.ports.parisc:10076

On Tue, 30 Jan 2001, Matt Taggart wrote:

> I suspect that your make actually died during the make install right? This is 

No, during the build.

> the problem that John Marvin and I are working on. The pthread changes that he 
> made broke things that use librt and libpthread. In our current nfsroot that 
> is tar, make, and sleep. For now we're using a static make to complete the 
> install. Once I have a new glibc package built I will do new new 
> make,tar,sleep stuff too.
> 
> > Hmm, looking at what I just wrote, you can hardly call it a "successful
> > bootstrap".  I'm investigating the ld.so.1 problem - at least that one is
> > reproducable.
> 
> I was seeing that here too but John wasn't. We're currently trying to 
> determine the differences in our build environments. What system are you 
> building on and what nfsroot/kernel are you using?

Machine is a 712/80, nfsroot started life as nfsroot-20001009 but has been
tweaked quit a bit - compiler, binutils, glibc.  Kernel is one I built
from CVS checked out 24th. Jan.

Alan
-- 
Linuxcare.  Support for the Revolution.





From - Thu Nov 08 21:16:15 2018
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From: dann frazier <daniel_frazier@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] list migration & bug tracking system
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Xref: news.gmane.org gmane.linux.ports.parisc:10077

hey,

We now have a bug tracking system at:
http://bugs.parisc-linux.org/
The BTS is based on the debbugs package, Debian's BTS.

If you're not familiar w/ debbugs, see that page for documentation.

maintainer messages will be sent to corresponding lists on:
http://lists.parisc-linux.org
You can request a copy of the maintainers file through the BTS, as well
as view it online at http://bugs.parisc-linux.org/packages.html

we have moved the mailing lists and archives over to Mailman on a
different machine.  the switch should have been near-transparent.  you
can still send mail to puffinl.external, but lists.parisc-linux.org is
the preferred host.

You can subscribe and/or unsubscribe from all lists at once at:
http://lists.parisc-linux.org/bulksubscribe.html

You can now use htdig to search the list archives at:
http://lists.parisc-linux.org/search.html

please file bugs against the packages "bts" or "lists" if you run across
any problems or have any suggestions.
	-dann
-- 
---------------------------
dann frazier
Hewlett-Packard
Linux Development Lab
daniel_frazier@hp.com
(970) 898-0800




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Xref: news.gmane.org gmane.linux.ports.parisc:10078

dann frazier writes...

> You can subscribe and/or unsubscribe from all lists at once at:
> http://lists.parisc-linux.org/bulksubscribe.html
> 
> You can now use htdig to search the list archives at:
> http://lists.parisc-linux.org/search.html

I have modified the,

http://parisc-linux.org/mailing-lists/index.html

page to reflect the changes and point to the archives, web interface, and 
search tool. Also we have the MX records setup such that mail sent to,

listname@parisc-linux.org

will work properly.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: Re: [parisc-linux] register_fallback_cpu()
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---1463811727-1804289383-980924095=:21138
Content-Type: TEXT/plain; CHARSET=US-ASCII

On 30 Jan, Grant Grundler wrote:
> 5116@telia.com wrote:
> *sigh*.
> Is this an unusual parisc processor in that it doesn't have r0-3?
> Or r8-11?
> 
> Can you post the *whole* output?
> Starting from BOOT_ADMIN> prompt?
> 
> Oh...and unless you are using the default config file,
> I'll need that too.
I am sorry about that It was late and minicom seems to have some hickup
wrt its scroll-back buffer. (This is from a new run, since I had to
restart minicom to get it to behave).


-- 


---1463811727-1804289383-980924095=:21138
Content-Type: TEXT/plain; CHARSET=US-ASCII
Content-Disposition: attachment ; filename=".config"

#
# Automatically generated make config: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# General options
#
# CONFIG_SMP is not set
# CONFIG_KWDB is not set
CONFIG_GSC=y
# CONFIG_IOMMU_CCIO is not set
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_WAX_EISA=y
# CONFIG_SUPERIO is not set
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_CHASSIS_LCD_LED=y

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y

#
# General setup
#
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_BINFMT_SOM=y
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_BINFMT_JAVA is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y

#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_NETLINK is not set
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set

#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# SCSI support
#
CONFIG_SCSI=y

#
# SCSI support type (disk, tape, CDrom)
#
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=y

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
CONFIG_SCSI_CONSTANTS=y

#
# SCSI low-level drivers
#
CONFIG_SCSI_LASI=y
# CONFIG_SCSI_ZALON is not set
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
CONFIG_LASI_82596=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_NET_SB1000 is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
# CONFIG_TULIP is not set
# CONFIG_DE4X5 is not set
# CONFIG_DGRS is not set
# CONFIG_DM9102 is not set
# CONFIG_EEPRO100 is not set
# CONFIG_EEPRO100_PM is not set
# CONFIG_LNE390 is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_8139TOO is not set
# CONFIG_RTL8129 is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Input core support
#
# CONFIG_INPUT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_HIL=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_JOYSTICK is not set

#
# Input core support is needed for joysticks
#
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_SYSV_FS_WRITE is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
CONFIG_NFS_FS=y
# CONFIG_NFS_V3 is not set
CONFIG_ROOT_NFS=y
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
# CONFIG_NLS is not set

#
# Sound Drivers
#
# CONFIG_SOUND is not set

#
# Console drivers
#

#
# Frame-buffer support
#
# CONFIG_FB is not set
# CONFIG_STI_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

---1463811727-1804289383-980924095=:21138
Content-Type: TEXT/plain; CHARSET=US-ASCII
Content-Disposition: attachment ; filename="fail4.cap"


Select from menu: b lan

Trying lan.000000-000000.0.0
Boot path initialized.
Attempting to load IPL.


Hard booted.
palo ipl danne@zaphod.halden.lillfab.se Sun Jan  7 00:16:00 CET 2001
0/vmlinux 2232427 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.168.113.1 console=ttyS0'
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100150 first 00100000 n 4
Segment 0 load 00100000 size 1412236 mediaptr 0x1000
Segment 1 load 0025a000 size 277996 mediaptr 0x15a000
Segment 2 load 002a0000 size 8192 mediaptr 0x19e000
Segment 3 load 002cbce8 size 67552 mediaptr 0x1a0ce8
branching to kernel entry point 0x00100150
PDC Console Initialized
The 32-bit Kernel has started...
FP[0] enabled: Rev 1 Model 9
Free memory starts at: 0xc02dd000
start_parisc(0x504cf0,0x504cf0,0x0,0x0)
PALO command line: 'HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.168.113.1 console=ttyS0'
PALO initrd 0-0
model   00003100 00000481 00000000 00000000 77e3ab26 ffffffff 00000004 0000000a 0000000a
vers    0000000b
CPUID   vers 0 rev 0
model   9000/715
Searching for devices in PDC firmware... processor hpa 0xfffbe000
 an older box...
Using Alex's odd 715/old exception, onboard graphics won't be inventoried!
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0, 0x77, 0x0, 0x0
2. Scorpio Core BA (11) at 0xf082f000, versions 0x7, 0x0, 0x70, 0x0, 0x0
3. Scorpio Core SCSI (10) at 0xf0825000, versions 0x7, 0x0, 0x71, 0x0, 0x0
4. Scorpio Core LAN (802.3) (10) at 0xf0826000, versions 0x7, 0x0, 0x72, 0x0, 0x0
5. Scorpio Core HIL (10) at 0xf0821000, versions 0x7, 0x0, 0x73, 0x0, 0x0
6. Scorpio Core RS-232 (10) at 0xf0823000, versions 0x7, 0x0, 0x75, 0x0, 0x0
7. Scorpio Core RS-232 (10) at 0xf0822000, versions 0x7, 0x0, 0x75, 0x0, 0x0
8. Scorpio Core Centronics (10) at 0xf0824000, versions 0x7, 0x0, 0x74, 0x0, 0x0
9. Scorpio Audio (10) at 0xf1000000, versions 0x7, 0x0, 0x7b, 0x0, 0x0
10. Scorpio EISA BA (11) at 0xfc000000, versions 0x7, 0x0, 0x76, 0x0, 0x0
11. Scorpio (715/50) (0) at 0xfffbe000, versions 0x310, 0x0, 0x4, 0x0, 0x81
12. Scorpio (1) at 0xfffbf000, versions 0x17, 0x0, 0x9, 0x0, 0x0
That's a total of 12 devices.
CPU(s): 1 x PA7100 (PCX-T) at 50.000000 MHz
Linux version 2.4.0 (danne@zaphod) (gcc version 2.96 20000925 (experimental)) #45 Tue Jan 30 21:59:24 CET 2001
free_bootmem(0x2dd600, 0x2d22a00)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 12288
zone(0): 6144 pages.
zone(1): 6144 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=LINUX root=/dev/nfs nfsroot=192.168.113.1 console=ttyS0
Error reading tod clock
Calibrating delay loop... 49.76 BogoMIPS
Memory: 45348k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
busdevice_alloc_irq(0xc02bad44): No LASI/ASP/WAX found in system yet !
hil.c: IRQ not found for HIL at 0x00000000
Warning : device (10, 0x7, 0x0, 0x73, 0x0) NOT claimed by HIL 712, 715 or similiar
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled

Dumping Stack from c2fcc000 to c2fcca80:
c000 00000000 00000040 00000000 00000000 c026f320 00000001 00000000 ffffffff
c020 00000000 00000000 00000000 00000000 00000000 00000000 ffffffff c026f1e4
c040 c026f1e4 00000029 c2fc0000 c02a0000 c027460c 00000000 00000000 00000000
c060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 00000000
c080 00000000 c02a0000 c02a0000 c2fb0000 00000000 00000000 c2fb0098 c02a0098
c0a0 00000000 c02bc118 00000000 c2fcc0ac c2fcc0ac c2fcc908 00000000 00000000
c0c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c0e0 c2fcc000 c011aa98 00000000 00000009 00000000 00000000 00000023 00000000
c100 0000002c 00000000 00000000 00000000 00000000 00000000 00000000 80000000
c120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1c0 00000000 fffffeff 00000000 ffffffff 00000000 c026ffcc ffffffff ffffffff
c1e0 ffffffff ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff
c200 ffffffff ffffffff 00000300 00000300 00000400 00000400 ffffffff ffffffff
c220 ffffffff ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000
c240 00000000 00000000 00000000 00000000 00000000 00000000 00003000 0198420b
c260 00000000 c0142768 00008000 c2ffeca0 c021ac4c c022b9cc fc4ff000 00504cf0
c280 00000000 c0117334 c02ba800 00003000 0198420b c02ba800 00000000 0004000a
c2a0 c026f354 0000000b 00000024 0000003c 0000003e c026f000 00000001 00000000
c2c0 c01002bc c02a6ca3 00000000 c02a6cc7 0000000b c026f354 c026f000 08000059
c2e0 f0000694 000000ff 00000060 00000060 00000001 00000002 002a2080 00000008
c300 002a6700 c025a000 00000000 00e4e1c0 c02a08c0 00000060 0000001f 00000000
c320 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c340 00000000 00000000 00000000 00000000 40800000 00000000 ffd5b580 ffd5b580
c360 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000 00000000 00000000
c380 41800000 00000000 00000010 00000010 00000000 00000000 ffd5b580 ffd5b580
c3a0 41000000 00000000 40800000 00000000 ffd5b580 ffd5b580 41000000 00000000
c3c0 ffd5b580 ffd5b580 40800000 00000000 41000000 00000000 40300000 00000000
c3e0 40200000 00000000 40200000 00000000 41800000 ffd5b580 40000000 00000000
c400 40000000 00000000 40800000 00000000 41000000 00000000 00000000 00000000
c420 c2fcc800 c0105cf4 00000000 00000000 00000000 00000000 00000000 00000000
c440 c0117320 c0117324 40800000 00000000 00275000 00000000 c0274040 c0274064
c460 00000000 c0274204 00000000 00000000 00000000 c2fcc470 00000000 00000000
c480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4e0 00000000 00000000 00000000 c0105c48 00000000 00000000 00000000 00000000
c500 c02a0000 00000000 c02a0640 00000000 00000000 00000000 00000000 00000000
c520 00000000 00000000 00000000 c01002d0 00000000 00000000 00000000 00000000
c540 00000000 00000000 00000000 00000000 c2fcc000 c027460c c02a0000 00000000
c560 c02a0640 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c580 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c5a0 00000000 00000000 00000000 c0289068 00000000 00000000 00000000 00000000
c5c0 00000001 c0278000 00000000 00000000 00000002 00000001 00000001 c0248b34
c5e0 00000000 00000000 00000000 c0288f9c 00000000 00000000 00000000 00000000
c600 f0000694 08000059 00000001 00000000 f0001244 000ff000 001a5a59 c0289830
c620 0004000a fc4ff000 c02bc000 c02be800 c025a000 c02ba000 c029ddec c029ddb8
c640 c029ddec c029ddb4 00000000 00000000 000ff000 001a5a59 c0289830 0004000a
c660 fc4ff000 c02bc000 c02be800 c0290c14 c02ba000 c029ddec c029dd98 c02ba000
c680 c02b7ee4 c02b7fa0 c027c304 00000040 c0237d1c c0237908 c02379c4 c0237d20
c6a0 00000000 00000000 c02be800 c0290f70 c02ba000 00010800 c2fcc608 c026f354
c6c0 10000080 c02b7ee4 c02b7fa0 c027c304 00000040 c2ffd0c0 c0237800 c0237800
c6e0 fffffffc c02b7fa0 c019ac38 c01996dc c0279450 10000080 c02b7ee4 c02b7fa0
c700 c027c304 00000040 c0237a7c c027e2c4 c0237800 00000000 c02b7ee4 c02b7ee4
c720 c02ba000 c02b7114 c01d9420 c01177bc c027e2c4 c027e164 c2fcc900 00000060
c740 c02bbfe4 00000000 c027c3d4 c02bbfe0 00000000 0000003c 0000003e c026f000
c760 00000001 c02a6cfb 00000004 c01596a0 00000054 c02a6cfb 0000000b c026f354
c780 c2fc88ec 00008124 f0000694 000000ff 00000060 00000060 00000001 00000002
c7a0 002a2080 00000008 002a6700 c0290e70 00000000 00e4e1c0 c2fcc980 00000060
c7c0 0000001f 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c7e0 00000000 00000000 00000000 c019791c 00000000 00000000 40800000 00000000
c800 ffd5b580 ffd5b580 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
c820 00000000 00000000 41800000 00000000 00000010 00000010 00000000 00000000
c840 0006000b c02a6740 c019791c c02b7ee0 00000013 0000002f c02b8cc4 c027c3d4
c860 ffffffff c026f000 c019ac38 c02b7fa0 fffffffc c0237800 c0237800 c02c9584
c880 c0237800 c0237800 c02b7f24 00000000 c02b8cc4 c02bb800 ffffffff 00000040
c8a0 00000093 00000002 00000000 c025a000 00002580 0000002f c2fcca80 c0290e38
c8c0 0000001f 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c8e0 00000000 00000000 00000000 00000000 00000000 00000000 40800000 00000000
c900 ffd5b580 ffd5b580 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
c920 00000000 00000000 41800000 00000000 00000010 00000010 00000000 00000000
c940 ffd5b580 ffd5b580 41000000 00000000 40800000 00000000 ffd5b580 ffd5b580
c960 41000000 00000000 ffd5b580 ffd5b580 40800000 00000000 41000000 00000000
c980 40300000 00000000 40200000 00000000 40200000 00000000 41800000 ffd5b580
c9a0 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
c9c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c9e0 00000000 00000000 c010cc7c c010cc80 00000000 00000000 00000000 00000000
ca00 00000000 00000000 00000001 00000020 00000001 0e781096 00000000 0000000c
ca20 00000000 00000002 c0270340 c0103670 c0270490 00000000 00000000 00000000
ca40 80000000 c02bc000 c2fcc740 00000020 00000000 00000000 c027068c 00000007
ca60 c2fcc000 00000002 c0270340 c0106704 c0270490 00000000 00000000 00000000

Data access rights fault in kernel: Code=26 regs=c2fcc840 (Addr=0000000c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001011
r0-3     00000000 c02a6740 c019791c c02b7ee0
r4-7     00000013 0000002f c02b8cc4 c027c3d4
r8-11    ffffffff c026f000 c019ac38 c02b7fa0
r12-15   fffffffc c0237800 c0237800 c02c9584
r16-19   c0237800 c0237800 c02b7f24 00000000
r20-23   c02b8cc4 c02bb800 ffffffff 00000040
r24-27   00000093 00000002 00000000 c025a000
r28-31   00002580 0000002f c2fcca80 c0290e38
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c010cc7c c010cc80
 IIR: 0e781096    ISR: 00000000  IOR: 0000000c
ORIG_R28: 00000000

---1463811727-1804289383-980924095=:21138--




From - Thu Nov 08 21:16:15 2018
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From: "Pete" <plaven@ozemail.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP9000 800/G30 and G50 Support?
Date: Wed, 31 Jan 2001 18:03:40 +1100
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Xref: news.gmane.org gmane.linux.ports.parisc:10080

> > I still haven't been able to acertain if this archcetecture is supprted 
> > with the linux port...  Anyone willing to offer a yes or no?
> 
> it's in the faq.

Yep you're right... 

I even remember reading it.. I wasn't making a correlation to the server model 
and what was written, don't ask why, it's not that unclear in the faq.



-- snip --
The earliest PA-RISC servers have proprietary HP devices attached to 
proprietary HP bus architectures. It is unlikely that documentation on these 
busses and devices will ever become available, since so few people are 
interested in spending any effort finding and releasing the docs. Machines in 
this category are the E, F, G, H, I class (aka Nova) and T500 series 
(Emerald) machines as well as some earlier, unlettered servers. 

-- snip --

Having said that the G30 and G50 obviously fall into the list of lettered 
machines not supported.

Thanks..



Pete.





From - Thu Nov 08 21:16:15 2018
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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Weird compile problems
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Xref: news.gmane.org gmane.linux.ports.parisc:10081

On Wed, 31 Jan 2001, Alan Modra wrote:

[about pehc devel branch gcc]
> r19 is being trashed.  It's a compiler bug.  One I added too. :-(

Now fixed.

-- 
Linuxcare.  Support for the Revolution.





From - Thu Nov 08 21:16:15 2018
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> just for giggles, i merged 2.4.1-pre10 into our tree.  no conflicts.

Bad move. 2.4.1 is incredibly broken and unstable. Stay at 2.4.0 for testing




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From: Greg Ingram <ingram@symsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.4.1 Bits Won't Drive C100
Date: Wed, 31 Jan 2001 10:37:14 -0600 (CST)
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Xref: news.gmane.org gmane.linux.ports.parisc:10083

Howdy,

Just tried the lastest 2.4.1 bits from CVS and it barfs on my C100.  
Output follows.

- Greg


HARD Booted.
palo ipl root@ingram Mon Jan 15 12:24:52 CST 2001
0/vmlinux 1973442 bytes @ 0x6800
0/palo-cmdline 'vmlinux HOME=/ TERM=linux root=/dev/sda3 rw'
Kernel: partition 0 file vmlinux
ELF32 executable

Entry 00100120 first 00100000 n 5
Segment 0 load 00100000 size 1306612 mediaptr 0x1000
Segment 1 load 00240000 size 170792 mediaptr 0x140000
Segment 2 load 0026c000 size 108036 mediaptr 0x16a000
Segment 3 load 00288000 size 8192 mediaptr 0x185000
Segment 4 load 002b16a8 size 528 mediaptr 0x1876a8
branching to kernel entry point 0x00100120
Set default PSW W bit to 0
PDC Console Initialized
The 32-bit Kernel has started...
FP[0] enabled: Rev 1 Model 11
Free memory starts at: 0xc02b2000
start_parisc(0x504d70,0x504d70,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/sda3 rw'
PALO initrd 0-0
model   00005920 00000481 00000000 00000002 782482ee 100000f0 00000004 0000008a 0000008a
vers    0000000d
cpuid   0000016d
CPUID   vers 11 rev 13
model   9000/777/C100
led_init: chassis info: model=2 (LED), lcd_width=0, cmd_delay=40, ret0=8, ret1=8
LED display at f0190001 registered
Searching for devices in PDC firmware... processor hpa 0xfffa0000
a newer box...
Found devices:
1. Coral SGC Graphics (10) at 0xf6000000, versions 0x4, 0x0, 0x77, 0x0, 0x0
2. SkyHawk 100/120 FW-SCSI (4) at 0xf5f8c000, versions 0x1f, 0x0, 0x89, 0x0, 0x80
3. U2-IOA BC GSC+ Port (7) at 0xf5fbf000, versions 0x501, 0x1, 0xc, 0x0, 0x0,  additional addresses: 0xf5f80000 
4. Raven T' Core BA (11) at 0xffd00000, versions 0x32, 0x0, 0x81, 0x0, 0x0,  additional addresses: 0xffd0c000 0xffc00000 
5. Raven T' Lasi Core RS-232 (10) at 0xffd05000, versions 0x32, 0x0, 0x8c, 0x0, 0x0
6. Raven T' Core SCSI (10) at 0xffd06000, versions 0x32, 0x0, 0x82, 0x0, 0x0
7. Raven T' Core LAN (802.3) (10) at 0xffd07000, versions 0x32, 0x0, 0x8a, 0x0, 0x0
8. Raven T' Core Centronics (10) at 0xffd02000, versions 0x32, 0x0, 0x74, 0x0, 0x0,  additional addresses: 0xffd01000 0xffd03000 
9. Raven T' Core PC Floppy (10) at 0xffd0a000, versions 0x32, 0x0, 0x83, 0x0, 0x0
10. Raven T' Audio (10) at 0xffd04000, versions 0x32, 0x0, 0x7b, 0x0, 0x0
11. Raven T' Core PC Keyboard (10) at 0xffd08000, versions 0x32, 0x0, 0x84, 0x0, 0x0
12. Raven T' Core PC Keyboard (10) at 0xffd08100, versions 0x32, 0x0, 0x84, 0x0, 0x0
13. Raven T' Wax BA (11) at 0xffe00000, versions 0x1e, 0x0, 0x8e, 0x0, 0x0,  additional addresses: 0xffe03000 0xffe06000 
14. Raven T' Wax EISA BA (11) at 0xfc000000, versions 0x1e, 0x0, 0x90, 0x0, 0x0,  additional addresses: 0xffc88400 0xf4000000 
15. Raven T' Wax RS-232 (10) at 0xffe02000, versions 0x1e, 0x0, 0x8c, 0x0, 0x80
16. Raven T' Wax HIL (10) at 0xffe01000, versions 0x1e, 0x0, 0x73, 0x0, 0x0
That's a total of 16 devices.
No CPUs reported by firmware - probing...
Found CPU at fffa0000
CPU(s): 1 x PA7200 (PCX-T') at 100.000000 MHz
Linux version 2.4.1 (root@ingram) (gcc version 2.96 20000925 (experimental)) #8 Tue Jan 30 16:18:05 CST 2001
free_bootmem(0x2b3000, 0x7d4d000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/sda3 rw
Calibrating delay loop... 99.73 BogoMIPS
Memory: 125992k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Lasi version 9 at 0x00000000 found.
busdevice_alloc_irq(0xc028c80c): No known LASI/ASP/WAX owns device at 0xffd02000 !
IRQ not found for parallel device at 0xffd02000
Warning : device (10, 0x32, 0x0, 0x74, 0x0) NOT claimed by parallel device HP 7xx - Series
busdevice_alloc_irq(0xc028c7d4): No known LASI/ASP/WAX owns device at 0xffd07000 !
lan.c: IRQ not found for i82596 at 0x00000000
Warning : device (10, 0x32, 0x0, 0x8a, 0x0) NOT claimed by Lasi i82596 LAN 712, 715 or similiar
Initializing Lasi PS/2-keyboard port at 0xffd08000...
busdevice_alloc_irq(0xc028c8b4): No known LASI/ASP/WAX owns device at 0xffd08000 !
Warning : device (10, 0x32, 0x0, 0x84, 0x0) NOT claimed by Lasi psaux generic
Support for Lasi PS/2-psaux not yet available !
superio: Probe
Could not find Superio IDE !
Could not find Superio USB!
Bah!
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
lp: driver loaded but no devices found
block: queued sectors max/low 83648kB/27882kB, 256 slots per queue
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
busdevice_alloc_irq(0xc028c80c): No known LASI/ASP/WAX owns device at 0xffd02000 !
IRQ not found for parallel device at 0xffd02000
Warning : device (10, 0x32, 0x0, 0x74, 0x0) NOT claimed by parallel device HP 7xx - Series
SCSI subsystem driver Revision: 1.00
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
ncr53c8xx: 53c720 detected

Dumping Stack from c7f9c000 to c7f9cd80:
c000 00000000 00000040 00000000 00000000 c0255360 00000001 00000000 ffffffff
c020 00000000 00000000 00000000 00000000 00000000 00000000 ffffffff c0255224
c040 c0255224 00000039 c7f90000 c0288000 c025a60c 00000000 00000000 00000000
c060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 00000000
c080 00000000 c0288000 c0288000 c7f7c000 00000000 00000000 c7f7c098 c0288098
c0a0 00000000 c02a17fc 00000000 c7f9c0ac c7f9c0ac c7f9c908 00000000 00000000
c0c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c0e0 c7f9c000 c0116d98 00000000 0000001c 00000000 00000000 00000028 00000000
c100 00000044 00000000 00000000 00000000 00000000 00000000 00000000 80000000
c120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1c0 00000000 fffffeff 00000000 ffffffff 00000000 c0255f4c ffffffff ffffffff
c1e0 ffffffff ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff
c200 ffffffff ffffffff 00000800 00000800 00000400 00000400 ffffffff ffffffff
c220 ffffffff ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000
c240 00000000 00000000 00000000 00000000 00000000 00000000 00008000 21998304
c260 00000000 c013e6ec 00010000 c7ffeba0 c020cf0c c021d010 000000f0 00504d70
c280 00000000 c011517c c02a0800 00008000 21998304 c02a0800 00000000 0004000a
c2a0 0000003c 0000003e c0255000 00000001 c028fb87 00000004 c028fb63 00000000
c2c0 c010028c 0000003e 00000000 00000024 0000000b c0255394 c0255000 f00000ac
c2e0 f00000a4 000000ff ffd05800 ffd05800 ffd05800 00000060 ffffffff ffd05800
c300 0028f540 c0240000 00000000 00000000 c02888c0 00000000 000b0800 00000000
c320 0000001f 00000000 0000001f 00000000 0000001f 00000000 00000000 00000000
c340 00000000 00000000 00000000 00000000 00000000 00000000 00000010 00000020
c360 7f7fffff ffffffff 43ebebeb e0000000 00000000 00000000 45e69c6a 25b7ea20
c380 41800000 00000000 00000010 00000010 00000000 00000000 00000040 00000080
c3a0 00000100 00000200 00000400 00000800 7fffffff 7fffffff 41000000 00000000
c3c0 7fffffff 7fffffff 40800000 00000000 41000000 00000000 40300000 00000000
c3e0 40200000 00000000 40200000 00000000 41800000 7fffffff 40000000 00000000
c400 40000000 00000000 40800000 00000000 41000000 00000000 00000000 00000000
c420 c7f9c800 c0105cf4 00000000 00000000 00000000 00000000 00000000 00000000
c440 c0115168 c011516c 40800000 00000000 0025b000 00000000 c025a040 c025a064
c460 00000000 c025a204 00000000 00000000 00000000 c7f9c470 00000000 00000000
c480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4a0 cf7928b3 9ef25167 3de4a2cf 7bbff0cc f70954ca ee12a995 dc25532b b84aa657
c4c0 70954caf e15c2c0c c2b85819 8570b033 0ae16067 15b4759c 2b1e5e6a 564a0986
c4e0 ace2a65e 59c54cbd b3fc2c28 c0105c48 cf8605f0 9f0c0be1 3e1817c3 7c469ad4
c500 c0288000 00000000 c0288640 c7dc07d7 8fb80faf 1f701f5f 3e968bec 7d5ba28a
c520 fac1f046 f583e08d eb07c11b c01002a0 ac1f046f 583e08df b00aa4ec 601549d9
c540 c05c26e0 80b84dc1 01709b83 02978254 c7f9c000 c025a60c c0288000 00000000
c560 c0288640 aea9ca4e 5d53949d bad19c68 75a338d1 eb30c4f0 d66189e1 acc313c3
c580 59862787 b37afa5c 66f5f4b9 cd9d5c20 9b3ab841 36757083 6c9c5454 d94e1dfa
c5a0 b29c3bf5 653877eb ca065a84 c026d0a4 28196a13 50446174 a0fe77ba 41fcef75
c5c0 00000000 c025e000 0e4b1bb0 1ce08232 00000060 00000001 00000001 c0234850
c5e0 99146cbb 3228d977 642707bc c026cfd0 90717455 20e2e8ab 41b36404 83107d5a
c600 c02865f0 c02865e4 f00010f4 00000000 00000060 c7f95820 c025817c c022c020
c620 0004000a 000000f0 c02a1000 c027c6e8 c0240000 c02a0800 c0286604 c02865d8
c640 c02a0800 c022b800 c029f40c c02a0800 c0240000 c02a0800 c022b800 c01a3f3c
c660 00000000 c026d870 0004000a c01a4f30 c02a1000 c02a4000 c0240000 c02a0800
c680 c0286604 c02865e4 c02a0800 c0286604 c02865e0 c0228a34 c022c048 c0228e44
c6a0 00000000 00000000 c02a4000 c0155b84 c02a0800 00010800 000000f0 c02a1000
c6c0 c02a4000 c0240000 c02a0800 c0286604 c02659f8 c02a0800 c0286604 c02656cc
c6e0 c028fb66 00000024 c028fb8b c012f8e0 0000003c 00000028 0000000b c0255394
c700 c026d870 0004000a 000000f0 c0264800 00000000 c0264854 00000001 c0264860
c720 00000000 ffd05800 0028f540 c01a47b4 00000000 00000000 c7f9c900 00000000
c740 00000000 c026d870 0004000a 000000f0 00000000 c0264800 c02656cc 00000000
c760 c0286604 c0264800 00000000 c01c0a48 00000000 00000000 00000000 00000000
c780 c02a4000 c02659f8 c0264800 c0286604 c0265740 00000000 c0256534 0000000a
c7a0 00000000 00000000 c02561ac c01ac1d4 c0256244 00000010 00000000 00000000
c7c0 00000040 00000080 00000100 00000200 00000400 00000800 7fffffff 7fffffff
c7e0 41000000 00000000 7fffffff c0109d90 40800000 00000000 41000000 00000000
c800 40300000 00000000 fffa0000 00000002 00000022 00000000 c028c000 00000002
c820 c02657d0 c028c6bc 40000000 c012f9b0 40800000 00000000 41000000 00000000
c840 00000000 00000001 0000004d 00000000 0000001f 00000022 00000001 c02317ac
c860 c0264800 c0264800 c0264800 c027a12c 00000001 00000010 00000000 00000000
c880 00000001 f5f8c034 00000000 00000000 00000000 f5f8c800 00000000 f5f8c800
c8a0 00000022 00000000 00000000 5a000000 c0231b00 04080400 07200002 00000000
c8c0 ff000000 00000000 c028c000 c028c6bc 00000040 00000001 c0265744 7fffffff
c8e0 40000000 00000000 40000000 c011517c 40800000 00000000 41000000 00000000
c900 00000000 0004000a 0000003c 0000003e c0283bd4 c7f9c8ac c0231b00 c0233158
c920 c028fb63 00000034 c028fb98 c01c12f0 0000003c 00000035 0000000b c0255394
c940 c026d870 0004000a 000000f0 00000000 00000000 00000022 c02659f8 c02658e4
c960 f5f8c800 c026d870 0004000a 000000f0 00000000 00000000 00000022 c02659f8
c980 c02658e4 f5f8c800 0000001f 00000000 0000001f 00000000 c0233175 00000000
c9a0 00000000 00000000 00000000 c027bb14 00000000 00000000 00000000 00000000
c9c0 00000000 c7f95920 c7f9c888 c7f95998 f5f8c800 00000000 00000022 c7f9c888
c9e0 c02658e4 f5f8c800 c028fb81 0000003e 0000003c 0000001e 0000000b c0255394
ca00 c0255000 f00000ac f00000a4 000000ff ffd05800 ffd05800 ffd05800 00000060
ca20 ffffffff ffd05800 0028f540 c01add00 00000000 00000000 c7f9cc00 00000000
ca40 00000cc0 00000000 0000000b c7f8c000 0000001f 00000000 0000001f 00000000
ca60 00000000 00000000 00000000 c01ad468 00000000 00000000 00000000 00000000
ca80 00000001 c0232150 00000cc0 c7f8c000 43ebebeb e0000000 00000000 00000000
caa0 45e69c6a 25b7ea20 41800000 c01ad22c 00000010 00000010 00000000 00000000
cac0 00000001 c0231974 000000bc 00000000 00000008 c7f8c094 00002000 00000009
cae0 41000000 00000000 7fffffff c01ad22c 40800000 00000000 41000000 00000000
cb00 00000009 00000000 40200000 00000000 40200000 00000000 41800000 7fffffff
cb20 40000000 00000000 40000000 c01ad85c 40800000 00000000 41000000 00000000
cb40 0004010a c02a1000 c01ad85c c7f8c100 c7f8c000 c0265800 c0231800 c0232150
cb60 00000000 00000000 0004000a c026d870 00000000 0000004d 00000001 00000000
cb80 f00010f4 f00000ac f00000a4 00000000 c7f8c110 00000010 c01ad820 c7f8c100
cba0 c7f9cac8 00002000 00000000 c0240000 c7f8c100 00000000 c7f9cd80 c01ad22c
cbc0 000b0800 00000000 0000001f 00000000 0000001f 00000000 0000001f 00000000
cbe0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cc00 00000010 00000020 7f7fffff ffffffff 43ebebeb e0000000 00000000 00000000
cc20 45e69c6a 25b7ea20 41800000 00000000 00000010 00000010 00000000 00000000
cc40 00000040 00000080 00000100 00000200 00000400 00000800 7fffffff 7fffffff
cc60 41000000 00000000 7fffffff 7fffffff 40800000 00000000 41000000 00000000
cc80 40300000 00000000 40200000 00000000 40200000 00000000 41800000 7fffffff
cca0 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
ccc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cce0 00000000 00000000 c01ad874 c01ad878 dda98595 bb530b2b 76a61657 ed3a99fc
cd00 00000000 00000020 c02420ec c7f9c900 0000001e 0e681096 00000000 00000004
cd20 c02a1000 c02a17a0 c02a1760 c0117b48 a7269297 4e4d252f 9cecff0c 39d9fe19
cd40 0000000e c0293f80 00000001 c02420ec 3fe13c97 7fb4cc7c ff1f2daa fe3e5b55
cd60 fc7cb6ab f8f96d57 f1f2daaf c0106704 c7cb6abf 8f96d57f 1f2daaff 3e2de0ac

Data access rights fault in kernel: Code=26 regs=c7f9cb40 (Addr=00000004)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000100001010
r0-3     00000000 c02a1000 c01ad85c c7f8c100
r4-7     c7f8c000 c0265800 c0231800 c0232150
r8-11    00000000 00000000 0004000a c026d870
r12-15   00000000 0000004d 00000001 00000000
r16-19   f00010f4 f00000ac f00000a4 00000000
r20-23   c7f8c110 00000010 c01ad820 c7f8c100
r24-27   c7f9cac8 00002000 00000000 c0240000
r28-31   c7f8c100 00000000 c7f9cd80 c01ad22c
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c01ad874 c01ad878
 IIR: 0e681096    ISR: 00000000  IOR: 00000004
ORIG_R28: 00000020





From - Thu Nov 08 21:16:15 2018
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From: The Puffin at ESIEE <puffin@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Linux Expo Paris - Day 1
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Hi guys!!                                                             
                                                                      
Some news from Linux Expo here in Paris:                              
                                                                      
The B132 and A500 ran all day long with no major trouble except for   
what seemed to  be memory problems on the A500.                       
                                                                      
Loads of people over here. The show turned out to be rather commercial
though w/ today's high advertising for Linux. We have some interesting
contacts for bug reporting with Dassault Aviation and Meteo France    
(the main meteorology agency in France).                              
                                                                      
That's all for day 1. Bye.                                            
                                                                      
ESIEE Team.                                                           




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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Server E55 (9000/856) - PDC console
Date: Wed, 31 Jan 2001 19:04:02 +0100
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Cc: Christoph Plattner <christoph.plattner@alcatel.at>,
	parisc-linux@thepuffingroup.com
To: Helge Deller <deller@gmx.de>
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Thanks for the answer, but ...

... the E55 server has no STI or similar console. Only as serial one !
And this serial console is on the 8-port serial multiplexer board,
and I miss a driver for that (same for SCSI !) on the E55 (9000/856).

So the only chance is the use of PDC console for the first step.
And as my experience shows on a PC with 8-port serial board, it is
not a problem to poll in 20-25ms cycles, which is enough for serial
console operation and is not a performace problem....

With friendly regards

	Christoph


Helge Deller wrote:
> 
> On Tuesday 30 January 2001 15:01, Christoph Plattner wrote:
> > Hello PA-RISC GURUS !
> >
> > * Is it possible to use the PDC console as system console ?
> 
> The PDC-interface misses a function to get interrupts when a key was pressed.
> To get around that problem you would need to poll the whole time, which would
> result in a *very* bad performance.
> Instead of using the PDC-console it is much better to get the STI console
> working. I've already begun to rewrite the current STI code from prumpf,
> which you can find under /drivers/video/sti/*.
> Currently both - the new and the old STI code - is broken and unfunctional,
> but I will continue to work on it as far as time permits.
> 
> Greetings,
> 
>         Helge.
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.

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Xref: news.gmane.org gmane.linux.ports.parisc:10086

Greg Ingram wrote:
> 
> Howdy,
> 
> Just tried the lastest 2.4.1 bits from CVS and it barfs on my C100.  
> Output follows.

Greg,
was this using the default .config?
ie the following sequence:
cvs update -A
make distclean
make oldconfig
make dep
make palo

(where cvs update reports no changes)


> No CPUs reported by firmware - probing...
> Found CPU at fffa0000
> CPU(s): 1 x PA7200 (PCX-T') at 100.000000 MHz

This is the output I was worried wouldn't work based on my recent changes.
It seems to be ok.


> SCSI subsystem driver Revision: 1.00
> zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
> ncr53c8xx: 53c720 detected

drivers/scsi/ncr53c8xx.c hasn't changed in a while:
| revision 1.14
| date: 2000/11/15 20:02:43;  author: rhirst;  state: Exp;  lines: +2 -2
| Allow lasi and zalon scsi in the same kernel

However, it looks like drivers/scsi/scsi_ioctl.c did:
| revision 1.6
| date: 2001/01/25 00:01:45;  author: willy;  state: Exp;  lines: +32 -44
| 
| Linus 2.4.0 merge (take one)
| ----------------------------
| revision 1.5
| date: 2000/11/10 21:43:28;  author: bame;  state: Exp;  lines: +5 -0
| merge with 2.4.0-test10
...

Or have you been able to boot kernels since the 2.4.0 merge?

I don't have time to chase this further (unless it crashes a box
I'm using :^). Any other takers?

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: Re: [parisc-linux] 800/G30, G50, E55 Support?
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But there are some people who are interested in writing drivers
for these machines and I want to use my E55 (9000/856). I only
need the input (doucmentation, HP-UX sources, etc) to do such
work (especially for the 8-port serial multiplexer).
Of cource I can only do that in my spare time, and of course I 
will have problems and cannot do it in only a few days, but I am
interested in having a full E55 support, although I have to work
on it.
Where can I get the INFOS to do that ????

With friendly regards

	Christoph



Pete wrote:
> 
> > > I still haven't been able to acertain if this archcetecture is supprted
> > > with the linux port...  Anyone willing to offer a yes or no?
> >
> > it's in the faq.
> 
> Yep you're right...
> 
> I even remember reading it.. I wasn't making a correlation to the server model
> and what was written, don't ask why, it's not that unclear in the faq.
> 
> -- snip --
> The earliest PA-RISC servers have proprietary HP devices attached to
> proprietary HP bus architectures. It is unlikely that documentation on these
> busses and devices will ever become available, since so few people are
> interested in spending any effort finding and releasing the docs. Machines in
> this category are the E, F, G, H, I class (aka Nova) and T500 series
> (Emerald) machines as well as some earlier, unlettered servers.
> 
> -- snip --
> 
> Having said that the G30 and G50 obviously fall into the list of lettered
> machines not supported.
> 
> Thanks..
> 
> Pete.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

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Christoph Plattner wrote:
> But there are some people who are interested in writing drivers
> for these machines and I want to use my E55 (9000/856). I only
> need the input (doucmentation, HP-UX sources, etc) to do such
> work (especially for the 8-port serial multiplexer).
...
> Where can I get the INFOS to do that ????

I've sent some HP internal URLs to someone in HP who expressed interested
in getting SPIFI (NIO SCSI) docs published. I haven't heard back from him
in a while.

Someone from HP who shares your interest can do either (or both)
of the following two things:
o write and publish an initial version of the code you need and provide
  technical support when needed. This is what I did for ccio code.
  (which is trivial compared to writing SPIFI chip support)
o Enable someone else to write the code by: review the relevant
  unpublished docs, fix references to IP not owned by HP, delete
  people/project names, get an HP attorney to review and bless the result.

Any other takers inside HP?
If so reply to me privately and I'll try to help locate the documents.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Alan Cox said:
> > just for giggles, i merged 2.4.1-pre10 into our tree.  no conflicts.
> 
> Bad move. 2.4.1 is incredibly broken and unstable. Stay at 2.4.0 for testing

Darn.  What did you call the tag before the merge, Mr Wilcx?

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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Subject: Re: [parisc-linux] 800/G30, G50, E55 Support?
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Plaese, contact me, if there is a chance to do something for my E55 !

Cheers

	Christoph P.


Grant Grundler wrote:
> 
> Christoph Plattner wrote:
> > But there are some people who are interested in writing drivers
> > for these machines and I want to use my E55 (9000/856). I only
> > need the input (doucmentation, HP-UX sources, etc) to do such
> > work (especially for the 8-port serial multiplexer).
> ...
> > Where can I get the INFOS to do that ????
> 
> I've sent some HP internal URLs to someone in HP who expressed interested
> in getting SPIFI (NIO SCSI) docs published. I haven't heard back from him
> in a while.
> 
> Someone from HP who shares your interest can do either (or both)
> of the following two things:
> o write and publish an initial version of the code you need and provide
>   technical support when needed. This is what I did for ccio code.
>   (which is trivial compared to writing SPIFI chip support)
> o Enable someone else to write the code by: review the relevant
>   unpublished docs, fix references to IP not owned by HP, delete
>   people/project names, get an HP attorney to review and bless the result.
> 
> Any other takers inside HP?
> If so reply to me privately and I'll try to help locate the documents.
> 
> grant
> 
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.1 Bits Won't Drive C100
Date: Wed, 31 Jan 2001 13:04:43 -0600 (CST)
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On Wed, 31 Jan 2001, Grant Grundler wrote:

> Greg Ingram wrote:
> > 
> > Howdy,
> > 
> > Just tried the lastest 2.4.1 bits from CVS and it barfs on my C100.  
> > Output follows.
> 
> Greg,
> was this using the default .config?

Er, no, using the config I've been using.

> ie the following sequence:
> cvs update -A

Okay, no changes.

> make distclean

Ouch.

> make oldconfig

Couple of new items.  Left as default, no.

> make dep

Fails trying to make dependancies for reiserfs.  Hmm... double checked
and, no, I'm not asking for it.  Why isn't in our tree?  Well, I copied it
from stock 2.4.1 sources.  Now dependancies build.

> make palo

Hold on.  [ Time passes.  Greg visits the coffee pot. ] Aha!  The kernel
differs.  Hold on again, I'll try booting this one.  Kablooey!  Rats.  
Output differs and is appended below.  A lot of the differences seem
related to the change in kernel size.
 
> (where cvs update reports no changes)
> 
> 
> > No CPUs reported by firmware - probing...
> > Found CPU at fffa0000
> > CPU(s): 1 x PA7200 (PCX-T') at 100.000000 MHz
> 
> This is the output I was worried wouldn't work based on my recent changes.
> It seems to be ok.
> 
> 
> > SCSI subsystem driver Revision: 1.00
> > zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
> > ncr53c8xx: 53c720 detected
> 
> drivers/scsi/ncr53c8xx.c hasn't changed in a while:
> | revision 1.14
> | date: 2000/11/15 20:02:43;  author: rhirst;  state: Exp;  lines: +2 -2
> | Allow lasi and zalon scsi in the same kernel
> 
> However, it looks like drivers/scsi/scsi_ioctl.c did:
> | revision 1.6
> | date: 2001/01/25 00:01:45;  author: willy;  state: Exp;  lines: +32 -44
> | 
> | Linus 2.4.0 merge (take one)
> | ----------------------------
> | revision 1.5
> | date: 2000/11/10 21:43:28;  author: bame;  state: Exp;  lines: +5 -0
> | merge with 2.4.0-test10
> ...
> 
> Or have you been able to boot kernels since the 2.4.0 merge?

Yes, my latest working kernel is:

	Linux apollos 2.4.0 #7 Fri Jan 26 10:52:17 CST 2001 parisc unknown

> I don't have time to chase this further (unless it crashes a box
> I'm using :^). Any other takers?

I'm going to experiment with some config changes now.

- Greg

HARD Booted.
palo ipl root@ingram Mon Jan 15 12:24:52 CST 2001
0/vmlinux 2155870 bytes @ 0x6800
0/palo-cmdline 'vmlinux HOME=/ TERM=linux root=/dev/sda3 rw'
Kernel: partition 0 file vmlinux
ELF32 executable

Entry 00100160 first 00100000 n 5
Segment 0 load 00100000 size 1438608 mediaptr 0x1000
Segment 1 load 00260000 size 173432 mediaptr 0x161000
Segment 2 load 0028c000 size 119640 mediaptr 0x18c000
Segment 3 load 002ac000 size 8192 mediaptr 0x1aa000
Segment 4 load 002d85c8 size 528 mediaptr 0x1ac5c8
branching to kernel entry point 0x00100160
Set default PSW W bit to 0
PDC Console Initialized
The 32-bit Kernel has started...
FP[0] enabled: Rev 1 Model 11
Free memory starts at: 0xc02d9000
start_parisc(0x504d70,0x504d70,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/sda3 rw'
PALO initrd 0-0
model   00005920 00000481 00000000 00000002 782482ee 100000f0 00000004 0000008a 0000008a
vers    0000000d
cpuid   0000016d
CPUID   vers 11 rev 13
model   9000/777/C100
led_init: chassis info: model=2 (LED), lcd_width=0, cmd_delay=40, ret0=8, ret1=8
LED display at f0190001 registered
Searching for devices in PDC firmware... processor hpa 0xfffa0000
a newer box...
Found devices:
1. Coral SGC Graphics (10) at 0xf6000000, versions 0x4, 0x0, 0x77, 0x0, 0x0
2. SkyHawk 100/120 FW-SCSI (4) at 0xf5f8c000, versions 0x1f, 0x0, 0x89, 0x0, 0x80
3. U2-IOA BC GSC+ Port (7) at 0xf5fbf000, versions 0x501, 0x1, 0xc, 0x0, 0x0,  additional addresses: 0xf5f80000 
4. Raven T' Core BA (11) at 0xffd00000, versions 0x32, 0x0, 0x81, 0x0, 0x0,  additional addresses: 0xffd0c000 0xffc00000 
5. Raven T' Lasi Core RS-232 (10) at 0xffd05000, versions 0x32, 0x0, 0x8c, 0x0, 0x0
6. Raven T' Core SCSI (10) at 0xffd06000, versions 0x32, 0x0, 0x82, 0x0, 0x0
7. Raven T' Core LAN (802.3) (10) at 0xffd07000, versions 0x32, 0x0, 0x8a, 0x0, 0x0
8. Raven T' Core Centronics (10) at 0xffd02000, versions 0x32, 0x0, 0x74, 0x0, 0x0,  additional addresses: 0xffd01000 0xffd03000 
9. Raven T' Core PC Floppy (10) at 0xffd0a000, versions 0x32, 0x0, 0x83, 0x0, 0x0
10. Raven T' Audio (10) at 0xffd04000, versions 0x32, 0x0, 0x7b, 0x0, 0x0
11. Raven T' Core PC Keyboard (10) at 0xffd08000, versions 0x32, 0x0, 0x84, 0x0, 0x0
12. Raven T' Core PC Keyboard (10) at 0xffd08100, versions 0x32, 0x0, 0x84, 0x0, 0x0
13. Raven T' Wax BA (11) at 0xffe00000, versions 0x1e, 0x0, 0x8e, 0x0, 0x0,  additional addresses: 0xffe03000 0xffe06000 
14. Raven T' Wax EISA BA (11) at 0xfc000000, versions 0x1e, 0x0, 0x90, 0x0, 0x0,  additional addresses: 0xffc88400 0xf4000000 
15. Raven T' Wax RS-232 (10) at 0xffe02000, versions 0x1e, 0x0, 0x8c, 0x0, 0x80
16. Raven T' Wax HIL (10) at 0xffe01000, versions 0x1e, 0x0, 0x73, 0x0, 0x0
That's a total of 16 devices.
No CPUs reported by firmware - probing...
Found CPU at fffa0000
CPU(s): 1 x PA7200 (PCX-T') at 100.000000 MHz
Linux version 2.4.1 (root@ingram) (gcc version 2.96 20000925 (experimental)) #2 Wed Jan 31 12:41:12 CST 2001
free_bootmem(0x2da000, 0x7d26000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 32768
zone(0): 16384 pages.
zone(1): 16384 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/sda3 rw
Calibrating delay loop... 99.73 BogoMIPS
Memory: 125836k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
Found i82596 at 0xffd07000, IRQ 87
early initialization of device eth0 is deferred
Initializing Lasi PS/2-keyboard port at 0xffd08000...
Support for Lasi PS/2-psaux not yet available !
Wax at 0xffe00000 found.
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
Lasi PS/2 transmit buffer timeout
Lasi PS/2 transmit buffer timeout
lp0: using parport0 (interrupt-driven).
block: queued sectors max/low 83538kB/27846kB, 256 slots per queue
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize

Dumping Stack from c7f9c000 to c7f9ca00:
c000 00000000 00000040 00000000 00000000 c02754a0 00000001 00000000 ffffffff
c020 00000000 00000000 00000000 00000000 00000000 00000000 ffffffff c0275364
c040 c0275364 00000032 c7f90000 c02ac000 c027a60c 00000000 00000000 00000000
c060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 00000000
c080 00000000 c02ac000 c02ac000 c7f7c000 00000000 00000000 c7f7c098 c02ac098
c0a0 00000000 c02c819c 00000000 c7f9c0ac c7f9c0ac c7f9c908 00000000 00000000
c0c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c0e0 c7f9c000 c0119d98 00000000 00000012 00000000 00000000 00000025 00000000
c100 00000037 00000000 00000000 00000000 00000000 00000000 00000000 80000000
c120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1c0 00000000 fffffeff 00000000 ffffffff 00000000 c02760b8 ffffffff ffffffff
c1e0 ffffffff ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff
c200 ffffffff ffffffff 00000800 00000800 00000400 00000400 ffffffff ffffffff
c220 ffffffff ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000
c240 00000000 00000000 00000000 00000000 00000000 00000000 00008000 21998304
c260 00000000 c01416ec 00010000 c7ffeba0 c022778c c02387f0 000000f0 00504d70
c280 00000000 c011817c c02c7000 00008000 21998304 c02c7000 00000000 0004000a
c2a0 0000003c 0000003e c0275000 00000001 c02b3ba7 00000004 c02b3b83 00000000
c2c0 c01002cc 0000003e 00000000 00000024 0000000b c02754d4 c0275000 f00000ac
c2e0 f00000a4 000000ff ffd05800 ffd05800 ffd05800 00000060 ffffffff ffd05800
c300 002b3540 c0260000 00000000 00000000 c02ac8c0 00000000 000b0800 00000000
c320 0000001f 00000000 0000001f 00000000 0000001f 00000000 00000000 00000000
c340 00000000 00000000 00000000 00000000 00000000 00000000 00000010 00000020
c360 7f7fffff ffffffff 43ebebeb e0000000 00000000 00000000 45e69c6a 25b7ea20
c380 41800000 00000000 00000010 00000010 00000000 00000000 00000040 00000080
c3a0 00000100 00000200 00000400 00000800 7fffffff 7fffffff 41000000 00000000
c3c0 7fffffff 7fffffff 40800000 00000000 41000000 00000000 40300000 00000000
c3e0 40200000 00000000 40200000 00000000 41800000 7fffffff 40000000 00000000
c400 40000000 00000000 40800000 00000000 41000000 00000000 00000000 00000000
c420 c7f9c800 c0105cf4 00000000 00000000 00000000 00000000 00000000 00000000
c440 c0118168 c011816c 40800000 00000000 0027b000 00000000 c027a040 c027a064
c460 00000000 c027a204 00000000 00000000 00000000 c7f9c470 00000000 00000000
c480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4a0 cf7928b3 9ef25167 3de4a2cf 7bbff0cc f70954ca ee12a995 dc25532b b84aa657
c4c0 70954caf e15c2c0c c2b85819 8570b033 0ae16067 15b4759c 2b1e5e6a 564a0986
c4e0 ace2a65e 59c54cbd b3fc2c28 c0105c48 cf8605f0 9f0c0be1 3e1817c3 7c469ad4
c500 c02ac000 00000000 c02ac640 c7dc07d7 8fb80faf 1f701f5f 3e968bec 7d5ba28a
c520 fac1f046 f583e08d eb07c11b c01002e0 ac1f046f 583e08df b00aa4ec 601549d9
c540 c05c26e0 80b84dc1 01709b83 02978254 c7f9c000 c027a60c c02ac000 00000000
c560 c02ac640 aea9ca4e 5d53949d bad19c68 75a338d1 eb30c4f0 d66189e1 acc313c3
c580 59862787 b37afa5c 66f5f4b9 cd9d5c20 9b3ab841 36757083 6c9c5454 d94e1dfa
c5a0 b29c3bf5 653877eb ca065a84 c028d15c 28196a13 50446174 a0fe77ba 41fcef75
c5c0 00000000 c027e000 0e4b1bb0 1ce08232 00000060 00000001 00000001 c0254bec
c5e0 99146cbb 3228d977 642707bc c028d090 90717455 20e2e8ab 41b36404 83107d5a
c600 c02a9358 c02a9308 00000000 00000000 00000000 c7f9c614 c7f9c614 c0235d18
c620 00000000 00000000 00000000 c0291858 c7f9c614 c02ca800 c02a9358 c02a92e8
c640 c0278800 00000000 00000000 00000000 0000004d 00000000 c028d930 0004000a
c660 000000f0 c02c8000 c02ca800 c0292424 c02c7000 c02a9358 c02a92f8 c02c7000
c680 c02ca800 c0260000 c02c7000 c02a9358 c02a930c 00006cc6 00014652 c0242348
c6a0 00000000 00000000 c02ca800 c02923e0 c02c7000 00010800 c7f9c608 c02754d4
c6c0 000000f0 c02c8000 c02ca800 c0260000 c02c7000 000003fc c02a930c 0000004d
c6e0 00000000 c028d930 0004000a c02a0cf8 c02c8000 c02ca800 c0260000 c02c7000
c700 c0284000 c01e5e40 ffffffff c0283cb0 c7ffc200 00001000 00000010 c024280c
c720 c02c7000 c02c3fb0 c01e5e40 c0297434 c0283de0 c0283c80 c7f9c900 00000000
c740 ffffffff 0000ffe0 080009e8 832b003e 00000000 00000008 0004000a 000000f0
c760 c02c8000 c0284000 c01e5e40 ffffffff c0283cb0 c7ffc200 c02bd000 c027e000
c780 00000063 00000008 c7f9c758 000000ff ffd05800 ffd05800 c0283c85 00000060
c7a0 ffffffff ffd05800 002b3540 c02971c0 00000000 00000000 c7f9c980 00000000
c7c0 0004000b c02c7800 c02971c0 00000000 c7ffc200 ffffffff c01e5e40 c0284000
c7e0 c02c8000 000000f0 00000000 c028d930 00000000 0000004d 00000001 00000000
c800 f00010f4 f00000ac f00000a4 00000000 c7f9c74e 00000002 c0297424 ffd07000
c820 c7f9c750 00000f20 00000000 c0260000 00000001 00000000 c7f9ca00 002b1638
c840 000b0800 00000000 0000001f 00000000 0000001f 00000000 0000001f 00000000
c860 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c880 00000010 00000020 7f7fffff ffffffff 43ebebeb e0000000 00000000 00000000
c8a0 45e69c6a 25b7ea20 41800000 00000000 00000010 00000010 00000000 00000000
c8c0 00000040 00000080 00000100 00000200 00000400 00000800 7fffffff 7fffffff
c8e0 41000000 00000000 7fffffff 7fffffff 40800000 00000000 41000000 00000000
c900 40300000 00000000 40200000 00000000 40200000 00000000 41800000 7fffffff
c920 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
c940 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c960 00000000 00000000 c02971dc c02971e0 00000000 00000000 c7f9cb40 00000000
c980 00000000 c0275000 00000001 c02b3bc6 0000001f 0e681096 00000000 00000004
c9a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c9c0 00000010 00000020 7f7fffff ffffffff 43ebebeb e0000000 00000000 00000000
c9e0 45e69c6a 25b7ea20 41800000 c0106704 00000010 00000010 00000000 00000000

Data access rights fault in kernel: Code=26 regs=c7f9c7c0 (Addr=00000004)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001011
r0-3     00000000 c02c7800 c02971c0 00000000
r4-7     c7ffc200 ffffffff c01e5e40 c0284000
r8-11    c02c8000 000000f0 00000000 c028d930
r12-15   00000000 0000004d 00000001 00000000
r16-19   f00010f4 f00000ac f00000a4 00000000
r20-23   c7f9c74e 00000002 c0297424 ffd07000
r24-27   c7f9c750 00000f20 00000000 c0260000
r28-31   00000001 00000000 c7f9ca00 002b1638
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c02971dc c02971e0
 IIR: 0e681096    ISR: 00000000  IOR: 00000004
ORIG_R28: c0275000
 






From - Thu Nov 08 21:16:16 2018
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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 800/G30, G50, E55 Support?
Date: Wed, 31 Jan 2001 20:11:39 +0100
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To: Grant Grundler <grundler@cup.hp.com>
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He, that's interesting:

See link:
	http://www.mkg.sfc.keio.ac.jp/support/FAQ/README

Here a copy and paste out of it:

2.2 MIPS

RT-Mach and 4.4BSD Lite server for MIPS-based Sony NEWS workstation
currently support the following devices.

        CPU:    R4400 (and compatibles).
        Devices:Built-in Serial (Zilog 85230 ESCC)
                Built-in SCSI (HP SPIFI)
                Built-in Ethernet (Sony SONIC)
                Video Board (NWB-1102)
                Keyboard
                Mouse

It seem as they support the SPIFI of HP !
I have not downloaded yet. I have to register and I want to read around
that stuff.
I also does not know, if this is a source snapshot.
But perhaps it can help .....

Cheers
	Christoph


Grant Grundler wrote:
> 
> Christoph Plattner wrote:
> > But there are some people who are interested in writing drivers
> > for these machines and I want to use my E55 (9000/856). I only
> > need the input (doucmentation, HP-UX sources, etc) to do such
> > work (especially for the 8-port serial multiplexer).
> ...
> > Where can I get the INFOS to do that ????
> 
> I've sent some HP internal URLs to someone in HP who expressed interested
> in getting SPIFI (NIO SCSI) docs published. I haven't heard back from him
> in a while.
> 
> Someone from HP who shares your interest can do either (or both)
> of the following two things:
> o write and publish an initial version of the code you need and provide
>   technical support when needed. This is what I did for ccio code.
>   (which is trivial compared to writing SPIFI chip support)
> o Enable someone else to write the code by: review the relevant
>   unpublished docs, fix references to IP not owned by HP, delete
>   people/project names, get an HP attorney to review and bless the result.
> 
> Any other takers inside HP?
> If so reply to me privately and I'll try to help locate the documents.
> 
> grant
> 
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




From - Thu Nov 08 21:16:16 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.1 Bits Won't Drive C100
Date: Wed, 31 Jan 2001 11:28:05 -0800
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To: Greg Ingram <ingram@symsys.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:10093

Greg Ingram wrote:

> Er, no, using the config I've been using.

I proposed the update/distclean/oldconfig/dep/palo sequence
only becase that's the only way for me to translate
hex addresses posted in the output to symbols.

I generally don't have time to build kernels based on .config's
posted here (few exceptions).

> > Or have you been able to boot kernels since the 2.4.0 merge?
> 
> Yes, my latest working kernel is:
> 
> 	Linux apollos 2.4.0 #7 Fri Jan 26 10:52:17 CST 2001 parisc unknown
...
> I'm going to experiment with some config changes now.

Ok.

But with this output I can tell you more about where to look
for the problem. These are steps anyone can do before posting
to the list.

> Data access rights fault in kernel: Code=26 regs=c7f9c7c0 (Addr=00000004)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001011
> r0-3     00000000 c02c7800 c02971c0 00000000
> r4-7     c7ffc200 ffffffff c01e5e40 c0284000
> r8-11    c02c8000 000000f0 00000000 c028d930
> r12-15   00000000 0000004d 00000001 00000000
> r16-19   f00010f4 f00000ac f00000a4 00000000
> r20-23   c7f9c74e 00000002 c0297424 ffd07000
> r24-27   c7f9c750 00000f20 00000000 c0260000
> r28-31   00000001 00000000 c7f9ca00 002b1638
> sr0-3    00000000 00000000 00000000 00000000
> sr4-7    00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: c02971dc c02971e0
>  IIR: 0e681096    ISR: 00000000  IOR: 00000004
> ORIG_R28: c0275000

IAOQ: 0xc02971dc i82596_probe+68 (current Instruction address)
GR02: 0xc02971c0 i82596_probe+4c (ret address of most recent subroutine call)

And feeding IIR to adb on an HPUX box ("echo 0x0e681096=i | adb") says:

                LDW             4(r19),r22

Clearly a NULL ptr dereference in the driver for LASI's built-in 10BT.

If you want more data, last night I committed a script
to CVS build-tools called "astk". Uses Paul Bames "a" to lookup
known symbols from raw "Dumping Stack from.." hex output.

hope this helps,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] j6000 HPMC
Date: Wed, 31 Jan 2001 15:29:15 -0800 (PST)
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Xref: news.gmane.org gmane.linux.ports.parisc:10094

FYI.

I wanted to test CONFIG_SMP stuff on a 32-bit capable box and was
given access to a J6000 (thanks rick!). The box has PDC rev 4.9 and
consistently HPMC's on the first PCI configuration space access.
C3k and J5k don't HPMC with kernels built from the same source.
I know c3k works and I'm sure jsm would let me know if j5k didn't.
I built the vanilla 32-bit kernel from source from today's CVS.

I'm not going to pursue this right now.
If anyone from TCD is concerned about this, I need ideas on why j5k
and A500 (PAT PDC) would work and j6k would not. I already know
parisc-linux does not touch the DMA hint registers. But that
shouldn't be relevant at this point.

Full console output is appended.

later,
grant



Firmware Version 4.9

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache
  ---------  --------   ---------------------  -----------------  -------------
      0      552 MHz    Active                 Functional         512 kB/1 MB
      1      552 MHz    Idle                   Functional         512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:            12884901888 bytes
  Good memory required:                  0 bytes (Not Set by OS)

  Primary boot path:    FWSCSI.6.0
  Alternate boot path:  SCSI.6.0
  Console path:         PCI1.0.0
  Keyboard path:        USB

CPU 0
NOTICE :  Processor self-tests have been disabled because FASTBOOT is
          enabled.  To enable self-tests, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.
NOTICE :  Memory has been initialized but not tested because FASTBOOT is
          enabled.  To test memory, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.

CPU 1
NOTICE :  Processor self-tests have been disabled because FASTBOOT is
          enabled.  To enable self-tests, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


----- Main Menu -------------------------------------------------------------

      Command                           Description
      -------                           -----------
      BOot [PRI|ALT|<path>]             Boot from specified path
      PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path
      SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices

      COnfiguration [<command>]         Access Configuration menu/commands
      INformation [<command>]           Access Information menu/commands
      SERvice [<command>]               Access Service menu/commands

      DIsplay                           Redisplay the current menu
      HElp [<menu>|<command>]           Display help for menu or command
      RESET                             Restart the system
-----
Main Menu: Enter command > bo lan
Interact with IPL (Y, N, Q)?> n

Booting...
Network Station Address 001083-ff274f

System IP Address 15.8.80.78
Server IP Address 15.8.81.247

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@hpisp747 Wed Jan 10 17:21:51 PST 2001
0/vmlinux 2222350 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa console=ttyS0'
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100160 first 00100000 n 5
Segment 0 load 00100000 size 1433988 mediaptr 0x1000
Segment 1 load 00260000 size 173432 mediaptr 0x160000
Segment 2 load 0028c000 size 119640 mediaptr 0x18b000
Segment 3 load 002ac000 size 8192 mediaptr 0x1a9000
Segment 4 load 002d85c8 size 71104 mediaptr 0x1ab5c8
branching to kernel entry point 0x00100160
Set default PSW W bit to 0
PDC Console Initialized
The 32-bit Kernel has started...
FP[0] enabled: Rev 1 Model 16
Free memory starts at: 0xc02ea000
start_parisc(0x504d70,0x504d70,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa console=ttyS0'
PALO initrd 0-0
model   00005d40 00000491 00000000 00000002 782a06ff 100000f0 00000008 000000b2 000000b2
vers    00000301
cpuid   0000022b
CPUID   vers 17 rev 11
model   9000/785/J6000
led_init: chassis info: model=0 (LCD), lcd_width=16, cmd_delay=40, ret0=32, ret1=32
led_init: min_cmd_delay = 40 uS
LCD display at f05d0008,f05d0000 registered
Searching for devices in PDC firmware... processor hpa 0xfffa0000
a newer box...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
2. Elroy PCI Bridge (13) at 0xfed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
3. Elroy PCI Bridge (13) at 0xfed34000, versions 0x782, 0x0, 0xa, 0x0, 0x0
4. Elroy PCI Bridge (13) at 0xfed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
5. Elroy PCI Bridge (13) at 0xfed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. Duet W+ (0) at 0xfffa0000, versions 0x5d4, 0x0, 0x4, 0x0, 0x91
7. Duet W+ (0) at 0xfffa2000, versions 0x5d4, 0x0, 0x4, 0x0, 0x91
8. Unknown device (1) at 0xfed10200, versions 0xa, 0x0, 0x9, 0x0, 0x0
That's a total of 8 devices.
CONFIG_SMP disabled - not claiming addional CPUs
Warning : device (0, 0x5d4, 0x0, 0x4, 0x0) NOT claimed by CPU PARISC
CPU(s): 1 x PA8600 (PCX-W+) at 552.000000 MHz
Linux version 2.4.1 (grundler@hpisp747) (gcc version 2.96 20000925 (experimental)) #1 Wed Jan 31 09:46:40 PST 2001
free_bootmem(0x2ee000, 0x1fd12000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 131072
zone(0): 65536 pages.
zone(1): 65536 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa console=ttyS0
Calibrating delay loop... 1101.00 BogoMIPS
Memory: 512048k available
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
POSIX conformance testing by UNIFIX
lba version TR4.0 (0x5) found at 0xfed30000



Dumping Stack from dfff4000 to dfff4b80:
4000 00000000 00000040 00000000 00000000 c02754a0 00000000 00000000 ffffffff
4020 00000002 00000000 00000000 00000000 00000000 00000000 ffffffff c0275364
4040 c0275364 00000000 c02ac000 c02ac000 c027a60c 00000000 00000000 00000000
4060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 00000000
4080 00000000 c02ac000 c02ac000 00000000 00000000 00000000 c02ac098 c02ac098
40a0 00000000 c02c819c 00000000 dfff40ac dfff40ac 00000000 00000000 00000000
40c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
40e0 dfff4000 c0119d98 00000000 00000003 00000000 00000000 0000002d 00000000
4100 00000030 00000000 00000000 00000000 00000000 00000000 00000000 80000000
4120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
41a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
41c0 00000000 fffffeff 00000000 ffffffff 00000000 c02760b8 ffffffff ffffffff
41e0 ffffffff ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff
4200 ffffffff ffffffff 00002000 00002000 00000400 00000400 ffffffff ffffffff
4220 ffffffff ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000
4240 00000000 00000000 00000000 00000000 00000000 00000000 00020000 00000004
4260 00000000 c01416ec 00040000 dfffeba0 c0227770 c02382cc 00000003 00504d70
4280 00000000 c011817c c02c7000 00020000 00000004 c02c7000 00000000 0004000a
42a0 0000003c 0000003e c0275000 00000001 c02b3ba7 00000004 c02b3b83 00000000
42c0 c01002cc 0000003e 00000000 00000024 0000000b c02754d4 c0275000 f000017c
42e0 f0000174 000000ff 002ae080 fee003f8 fee003fd 002b163c 00000060 fee003f8
4300 002b3540 c0260000 00000000 9f206d5b c02ac8c0 00000060 0010081f 00000000
4320 9cffffff fdffffff ffffffff ffffffff ffffffff ffffffff 00001e84 fffffbff
4340 00000078 ffffffff 00000000 000e4de0 00000000 ffffffff ffffffff ffffffff
4360 ffbffff7 fdffffff ffffffff ffffffff ffffffb7 ffefffff ffffffff fbfffeff
4380 7fffffff fffbffff ffffffff ffffffff ffffffbf f7bfffff dfffffff 00004010
43a0 ffefffff ffbfffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
43c0 7dffff7f fffdffff bf7fffff ffffffff fff5efff f7ffdfff ffffffff ffffffff
43e0 ffffffbe ff7fbfff ffffffff ffffffff bfffffff ffefffff 00000000 ffffffff
4400 3f7fff7f ffff7fff ffffffff ffffffff 7eebff7f ffffffef 00000000 00000000
4420 dfff4500 c0105c38 00000000 00000000 00000000 00000000 00000000 00000000
4440 c0118168 c011816c bf7fffff ffffffff 0027b000 00000000 c027a040 c027a064
4460 00000000 c027a204 00000000 00000000 00000000 dfff4470 00000000 00000000
4480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
44a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
44c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
44e0 00000000 00000000 00000000 c0105c48 00000000 00000000 00000000 00000000
4500 c02ac000 00000000 c02ac640 00000000 00000000 00000000 00000000 00000000
4520 00000000 00000000 00000000 c01002e0 00000000 00000000 00000000 00000000
4540 00000000 00000000 00000000 00000000 dfff4000 c027a60c c02ac000 00000000
4560 c02ac640 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4580 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
45a0 00000000 00000000 00000000 c028d104 00000000 00000000 00000000 00000000
45c0 c02ac640 00000000 00000000 00000000 00000000 00000000 dfffd140 00000000
45e0 00000000 00000000 00000000 c029fa34 00000000 00000000 00000000 00000000
4600 00000000 c0286234 c0252f9c c0260000 c02c7000 00000000 c0286234 00000000
4620 00000000 00000000 00000000 c028e3f8 00000000 00000000 00000000 00000000
4640 c02ca800 c0260000 c02c7000 00000000 c0286234 c0260000 c02756f0 00000000
4660 00000000 c0260000 dfff2760 00000000 00000000 0000416d 000081a4 00000000
4680 00000000 00000000 c02b3000 dfff2760 00000000 00000000 c0157ce0 00000000
46a0 00000000 0000416d 00000004 c0109d90 00000000 00000000 c028e5e8 00000000
46c0 c02b0000 00000002 c0275040 c02b06bc c02b3694 dfff2760 00000000 00000000
46e0 00000000 00000000 00000000 c0157ce0 00000000 00000000 00000000 00000000
4700 dfff2fac 0000416d c023427c fed30000 00000005 c0230f7c c0230eec c0230f8c
4720 00000000 00000000 00000000 c028e53c 00000000 00000000 00000000 00000000
4740 dfffb1a0 00000005 dfff11a0 dfff11a0 c0275040 f0400004 00000001 ffffffff
4760 00000000 c028d930 0004000a c029ef7c c02c8000 c02b0000 c02b06bc 00000002
4780 dfff11a0 dfff11a0 00000000 00000000 00000000 00000000 dfff1220 00000000
47a0 dfff11a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
47c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
47e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4800 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4820 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4840 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4860 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4880 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
48a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
48c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
48e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4900 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4920 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4940 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4960 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4980 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
49a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
49c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
49e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4a00 00000000 00000000 00000000 c02b3baf c02b0000 c02b06bc c0275088 dfff11a0
4a20 dfff1220 00000000 00000000 c01064c4 00000000 00000000 00000000 00000000
4a40 c028d930 0004000a 00000003 c02c8000 c02ca800 c0260000 c02b3690 0000000b
4a60 dfff1120 00000000 00000000 c029edcc 00000000 00000000 00000000 00000000
4a80 80000000 00000000 00000001 00000020 00000003 c02c8000 dfff1220 c02b06bc
4aa0 000000ff 00000000 00000008 c0103670 00000000 00000000 00000000 00000000
4ac0 80000000 c02c8000 dfff47c0 00000020 00000000 00000000 00000000 00000000
4ae0 00000000 00000000 00000000 c029ecb4 00000000 00000000 00000000 00000000
4b00 dfff4788 00000020 c02620ec 00000020 00000000 00000000 00000000 00000000
4b20 00000000 00000000 00000000 c01ddb60 00000000 00000000 00000000 00000000
4b40 dfff1234 00000000 0000000b 00000008 00000000 00000000 00000000 00000000
4b60 00000000 00000000 00000000 c011ad30 00000000 00000000 00000000 00000000

High Priority Machine Check (HPMC): Code=1 regs=c0268080 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001000
r0-3     00000000 c01df800 c010d3c8 dfff11a0
r4-7     00000000 0000000e dfff4a88 c02861c0
r8-11    00000000 00000000 0004000a c028d930
r12-15   00000000 ffffffff 00000001 f0400004
r16-19   f00008c4 f000017c f0000174 0000000a
r20-23   00000000 00000005 dfff1220 c0275518
r24-27   dfff11a0 fed30040 fed3004a c0260000
r28-31   dfff4788 00000180 dfff4b80 c01ddb60
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c01df908 c01df90c
 IIR: 0f40001c    ISR: a607fffb  IOR: 4c13004a
ORIG_R28: 00000000



GR02 0xc010d3c8 lba_cfg_read8+ac
IAOQ 0xc01df908 _gsc_readb+4

I think the calling stack looks something:
_gsc_readb+4
lba_cfg_read8+ac
pci_read_config_byte+24
pci_scan_slot+60
pci_do_scan_bus+58
lba_driver_callback+138
...





From - Thu Nov 08 21:16:16 2018
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From: Jeffrey A Law <law@redhat.com>
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Subject: [parisc-linux] Re: testcase for hppa64 gcc bug
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  In message <Pine.LNX.4.21.0012061607530.16721-100000@front.linuxcare.com.au>y
ou write:
  > > I think this needs to be reexamined.  Allan's ARG_POINTER_INVARIANT patch
  > > might not be needed now.
  > 
  > It's still needed.  The problem is that gcc thinks the arg pointer is
  > unchanged from the entry value to a function, even when the arg pointer
  > needs to be set to call other functions.
But the incoming argument pointer should have been copied into a pseudo at
the start of the function and the new pseudo used to address incoming args.

That's the real problem here I think.

jeff





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To: Greg Ingram <ingram@symsys.com>
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In-reply-to: Your message of "Wed, 31 Jan 2001 10:37:14 PST."
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Xref: news.gmane.org gmane.linux.ports.parisc:10096

Greg Ingram wrote:
> Just tried the lastest 2.4.1 bits from CVS and it barfs on my C100.  
> Output follows.

Same here. But mine dies sooner in serial card initialization
or somewhere soon after that. Had enough for today.

grant

ps. I was amused to see "Linux 2.4.1" on the LED display though. :^)
    Good work Helge!


Firmware Version 4.9

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache
  ---------  --------   ---------------------  -----------------  -------------
      0      440 MHz    Active                 Functional         512 kB/1 MB
      1      440 MHz    Idle                   Functional         512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:             2147483648 bytes
  Good memory required:                  0 bytes (Not Set by OS)

  Primary boot path:    FWSCSI.6.0
  Alternate boot path:  SCSI.6.0
  Console path:         PCI7.0.0
  Keyboard path:        USB

CPU 0
NOTICE :  Processor self-tests have been disabled because FASTBOOT is
          enabled.  To enable self-tests, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.

CPU 1
NOTICE :  Processor self-tests have been disabled because FASTBOOT is
          enabled.  To enable self-tests, disable FASTBOOT with the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


----- Main Menu -------------------------------------------------------------

      Command                           Description
      -------                           -----------
      BOot [PRI|ALT|<path>]             Boot from specified path
      PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path
      SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices

      COnfiguration [<command>]         Access Configuration menu/commands
      INformation [<command>]           Access Information menu/commands
      SERvice [<command>]               Access Service menu/commands

      DIsplay                           Redisplay the current menu
      HElp [<menu>|<command>]           Display help for menu or command
      RESET                             Restart the system
-----
Main Menu: Enter command > bo lan
Interact with IPL (Y, N, Q)?> n


Booting...
Network Station Address 001083-7a1f0c

System IP Address 15.8.81.61
Server IP Address 15.8.81.247

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl grundler@hpisp747 Wed Jan 10 17:21:51 PST 2001
0/vmlinux 2222350 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa console=ttyS0'
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100160 first 00100000 n 5
Segment 0 load 00100000 size 1433988 mediaptr 0x1000
Segment 1 load 00260000 size 173432 mediaptr 0x160000
Segment 2 load 0028c000 size 119640 mediaptr 0x18b000
Segment 3 load 002ac000 size 8192 mediaptr 0x1a9000
Segment 4 load 002d85c8 size 71104 mediaptr 0x1ab5c8
branching to kernel entry point 0x00100160
Set default PSW W bit to 0
PDC Console Initialized
The 32-bit Kernel has started...
FP[0] enabled: Rev 1 Model 16
Free memory starts at: 0xc02ea000
start_parisc(0x504d70,0x504d70,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa console=ttyS0'
PALO initrd 0-0
model   00005bd0 00000491 00000000 00000002 77f685a7 100000f0 00000008 000000b2 000000b2
vers    00000201
cpuid   00000225
CPUID   vers 17 rev 5
model   9000/785/J5000
led_init: chassis info: model=0 (LCD), lcd_width=16, cmd_delay=40, ret0=32, ret1=32
led_init: min_cmd_delay = 40 uS
LCD display at f05d0008,f05d0000 registered
Searching for devices in PDC firmware... processor hpa 0xfffa0000
a newer box...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
2. Elroy PCI Bridge (13) at 0xfed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
3. Elroy PCI Bridge (13) at 0xfed32000, versions 0x782, 0x0, 0xa, 0x0, 0x0
4. Elroy PCI Bridge (13) at 0xfed34000, versions 0x782, 0x0, 0xa, 0x0, 0x0
5. Elroy PCI Bridge (13) at 0xfed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. Elroy PCI Bridge (13) at 0xfed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
7. Forte W 2-way (0) at 0xfffa0000, versions 0x5bd, 0x0, 0x4, 0x0, 0x91
8. Forte W 2-way (0) at 0xfffa2000, versions 0x5bd, 0x0, 0x4, 0x0, 0x91
9. Forte 2w Memory (1) at 0xfed10200, versions 0x88, 0x0, 0x9, 0x0, 0x0
That's a total of 9 devices.
CONFIG_SMP disabled - not claiming addional CPUs
Warning : device (0, 0x5bd, 0x0, 0x4, 0x0) NOT claimed by CPU PARISC
CPU(s): 1 x PA8500 (PCX-W) at 440.000000 MHz
Linux version 2.4.1 (grundler@hpisp747) (gcc version 2.96 20000925 (experimental)) #1 Wed Jan 31 15:25:58 PST 2001
free_bootmem(0x2ee000, 0x1fd12000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 131072
zone(0): 65536 pages.
zone(1): 65536 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=15.8.81.247:/tftpboot/hppa console=ttyS0
Calibrating delay loop... 878.18 BogoMIPS
Memory: 512048k available
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
POSIX conformance testing by UNIFIX
lba version TR2.1 (0x2) found at 0xfed30000
lba version TR2.1 (0x2) found at 0xfed32000
Warning : device (13, 0x782, 0x0, 0xa, 0x0) NOT claimed by lba TR2.1
lba version TR2.1 (0x2) found at 0xfed34000
Warning : device (13, 0x782, 0x0, 0xa, 0x0) NOT claimed by lba TR2.1
lba version TR2.1 (0x2) found at 0xfed38000
Warning : device (13, 0x782, 0x0, 0xa, 0x0) NOT claimed by lba TR2.1
lba version TR2.1 (0x2) found at 0xfed3c000
kernel BUG at lba_pci.c:750!
(00000000)  c0275534 [0,ffffffff]/200
(c0275534)    dfff11ec [f0000001,f8000000]/200
SBA found Astro 2.1 at 0xfed00000
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
block: queued sectors max/low 340133kB/209061kB, 1024 slots per queue
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled

Dumping Stack from dfff4000 to dfff4ac0:
4000 00000000 00000040 00000000 00000000 c02754a0 00000001 00000000 ffffffff
4020 00000000 00000000 00000000 00000000 00000000 00000000 ffffffff c0275364
4040 c0275364 00000042 dffe4000 c02ac000 c027a60c 00000000 00000000 00000000
4060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 00000000
4080 00000000 c02ac000 c02ac000 dfe30000 00000000 00000000 dfe30098 c02ac098
40a0 00000000 c02c819c 00000000 dfff40ac dfff40ac dfff4908 00000000 00000000
40c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
40e0 dfff4000 c0119d98 00000000 00000017 00000000 00000000 00000030 00000000
4100 00000047 00000000 00000000 00000000 00000000 00000000 00000000 80000000
4120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
41a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
41c0 00000000 fffffeff 00000000 ffffffff 00000000 c02760b8 ffffffff ffffffff
41e0 ffffffff ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff
4200 ffffffff ffffffff 00002000 00002000 00000400 00000400 ffffffff ffffffff
4220 ffffffff ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000
4240 00000000 00000000 00000000 00000000 00000000 00000000 00020000 00000004
4260 00000000 c01416ec 00040000 dfffeba0 c0227770 c02382cc 00000003 00504d70
4280 00000000 c011817c c02c7000 00020000 00000004 c02c7000 00000000 0004000a
42a0 0000003c 0000003e c0275000 00000001 c02b3ba7 00000004 c02b3b83 00000000
42c0 c01002cc 0000003e 00000000 00000024 0000000b c02754d4 c0275000 f000017c
42e0 f0000174 000000ff 002ae080 fee003f8 fee003fd 002b163c 00000060 fee003f8
4300 002b3540 c0260000 00000000 175d4749 c02ac8c0 00000060 0010081f 00000000
4320 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 00003d09 ffffffff
4340 00000078 ffffffff 00000000 001c9c38 ffffffff ffffffff ffffffff ffffffff
4360 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
4380 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
43a0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
43c0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
43e0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
4400 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 00000000 00000000
4420 dfff4800 c0105cf4 00000000 00000000 00000000 00000000 00000000 00000000
4440 c0118168 c011816c ffffffff ffffffff 0027b000 00000000 c027a040 c027a064
4460 00000000 c027a204 00000000 00000000 00000000 dfff4470 00000000 00000000
4480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
44a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
44c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
44e0 00000000 00000000 00000000 c0105c48 00000000 00000000 00000000 00000000
4500 c02ac000 00000000 c02ac640 00000000 00000000 00000000 00000000 00000000
4520 00000000 00000000 00000000 c01002e0 00000000 00000000 00000000 00000000
4540 00000000 00000000 00000000 00000000 dfff4000 c027a60c c02ac000 00000000
4560 c02ac640 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4580 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
45a0 00000000 00000000 00000000 c028d15c 00000000 00000000 00000000 00000000
45c0 00000001 c027e000 00000000 00000000 002b163c 00000001 00000001 c0253d84
45e0 00000000 00000000 00000000 c028d090 00000000 00000000 00000000 00000000
4600 f0000174 f000017c f00008c4 f0400004 00000001 ffffffff 00000000 c028d930
4620 0004000a 00000003 c02c8000 c02ca800 c0260000 c02c7000 c02a9358 c02a9318
4640 c02a9358 c02a9314 00000000 00000000 ffffffff 00000000 c028d930 0004000a
4660 00000003 c02c8000 c02ca800 c0294e18 c02c7000 c02a9358 c02a92f8 c02c7000
4680 c02c4d80 c02c4e3c c0282300 00000040 c0243c6c c024386c c0243914 c0243c70
46a0 00000000 00000000 c02ca800 c0295174 c02c7000 00010800 dfff4608 c02754d4
46c0 10000080 c02c4d80 c02c4e3c c0282300 00000040 dfffeea0 c0243800 c0243800
46e0 fffffffc c02c4e3c c0199db4 c0198858 c027f44c 10000080 c02c4d80 c02c4e3c
4700 c0282300 00000040 c02439cc c0283de0 c0243800 00000000 c02c4d80 c02c4d80
4720 c02c7000 c02c3fb0 c01e5e40 c0118604 c0283de0 c0283c80 dfff4900 00000060
4740 c02c8064 00000000 c02823d0 c02c8060 00000000 00000001 c02b3bdb 00000004
4760 c02b3b86 00000054 c02b3bdb c0158574 0000003c 00000058 0000000b c02754d4
4780 dfff1bec 00008124 f0000174 000000ff 002ae080 fee003f8 fee003fd 002b163c
47a0 00000060 fee003f8 002b3540 c0295084 00000000 362f5862 dfff4980 00000060
47c0 0010081f 00000000 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
47e0 00003d09 ffffffff 00000078 c0196a98 00000000 001c9c38 ffffffff ffffffff
4800 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
4820 ffffffff ffffffff ffffffff c010cc88 ffffffff ffffffff ffffffff ffffffff
4840 c02c4d7c ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
4860 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
4880 0006000b c01df800 c010de30 00000000 00000013 0000002f c02c5b60 c02823d0
48a0 ffffffff c0275000 c0199db4 c02c4e3c fffffffc c0243800 c0243800 c02d5e04
48c0 c0243800 c0243800 c02c4dc0 0000000b c02c5b60 c02c7800 c010de10 00000040
48e0 0000002f fee0ffff 0000002f c0260000 3c105410 0000002f dfff4ac0 c010cc88
4900 0010081f 00000000 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
4920 00003d09 ffffffff 00000078 ffffffff 00000000 001c9c38 ffffffff ffffffff
4940 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
4960 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
4980 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
49a0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
49c0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
49e0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
4a00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4a20 00000000 00000000 c010de30 c010de34 c0276468 00000000 00000000 00000000
4a40 00000000 c02c8000 dfff4740 00000020 00000000 487300f0 00000000 00000078
4a60 dfff4000 00000002 c0276318 c0103058 c0276468 00000000 00000000 00000000
4a80 dfff4740 00000020 c02620ec 00000020 00000004 c02b3b83 0000001f c02b3ba3
4aa0 00000000 00000002 c0276318 c0106704 c0276468 00000000 00000000 00000000

Data access rights fault in kernel: Code=26 regs=dfff4880 (Addr=00000078)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001011
r0-3     00000000 c01df800 c010de30 00000000
r4-7     00000013 0000002f c02c5b60 c02823d0
r8-11    ffffffff c0275000 c0199db4 c02c4e3c
r12-15   fffffffc c0243800 c0243800 c02d5e04
r16-19   c0243800 c0243800 c02c4dc0 0000000b
r20-23   c02c5b60 c02c7800 c010de10 00000040
r24-27   0000002f fee0ffff 0000002f c0260000
r28-31   3c105410 0000002f dfff4ac0 c010cc88
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c010de30 c010de34
 IIR: 487300f0    ISR: 00000000  IOR: 00000078
ORIG_R28: c02c8000

GR02 == IAOQ?
0xc010de30 lba_astro_out8+20





From - Thu Nov 08 21:16:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.1 Bits Won't Drive C100
Date: Thu, 1 Feb 2001 03:27:08 +0100
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Cc: parisc-linux@thepuffingroup.com
To: Grant Grundler <grundler@cup.hp.com>,
	Greg Ingram <ingram@symsys.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:10097

On Thursday 01 February 2001 03:18, Grant Grundler wrote:

> ps. I was amused to see "Linux 2.4.1" on the LED display though. :^)
>     Good work Helge!

Hey, it really worked ?
I had never tested it or got any feedback if it worked.
Thanks, I think this will be a nice day today :-)

Helge




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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] WARNING: C3000 Linux problems
Date: Wed, 31 Jan 2001 19:50:31 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:10098

Summary: Don't run Linux on a C3000 until you hear otherwise.

Recently I had been doing a lot of building on a C3000 and was having some 
very weird and often not repeatable errors. John Marvin has a J5000 and was 
not having the problems. We were able to find a way to repeat the errors 
cleanly and independantly of other variables. We discovered that there is 
something different between the C3000 and J5000 that is causing the errors to 
happen. This is using a pre 2.4.0-merge kernel. So whatever subtle difference 
there is in the hardware is causing or uncovering a problem with our kernel. 
J5000s seem to be as good as ever, I don't know about B1000, B2000, C3600, 
J5600, or J6000. John Marvin is still looking at the problem, I have switched 
to a J5000 and am still trying to get a new toolchain built properly. 
Hopefully this will be resolved soon.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Weird compile problems
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Cc: parisc-linux@puffin.external.hp.com
To: "Paul J.Y. Lahaie" <pjlahaie@linuxcare.com>
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On Wed, 31 Jan 2001, Alan Modra wrote:

> On Wed, 31 Jan 2001, Alan Modra wrote:
> 
> [about pehc devel branch gcc]
> > r19 is being trashed.  It's a compiler bug.  One I added too. :-(
> 
> Now fixed.

It anyone has tried to compile glibc with the devel branch compiler,
you've probably discovered by now that ld.so is still crashing, but for a
different reason.  The global register allocation pass does the following
naughty thing:

[from elf/dl-load.c]
(insn 612 608 1626 (set (reg:SI 1 %r1)
        (plus:SI (reg:SI 19 %r19)
            (high:SI (symbol_ref/v/f:SI ("*.LC27"))))) 80 {*pa.md:2326}
(nil)
    (nil))

(insn 1626 612 621 (set (reg:SI 23 %r23 [242])
        (reg:SI 1 %r1)) 69 {*pa.md:2099} (nil)
    (nil))

[snip around 1480 lines, including calls]

(insn 1638 1527 988 (set (reg:SI 21 %r21)
        (mem/u:SI (lo_sum:SI (reg:SI 23 %r23 [242])
                (unspec:SI[ 
                        (symbol_ref/v/f:SI ("*.LC27"))
                    ]  0)) 0)) 82 {*pa.md:2352} (nil)
    (nil))

With the problem being that r23 is not a callee saved register, so it's
well and truly trashed by the time insn 1638 tries to use it.

-- 
Linuxcare.  Support for the Revolution.






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Hi,

after successfully cross compiling a kernel, I have a problem!

The initial bus scan seems to see the scsi controller:
model   00002000 00000481 00000000 00000000 775e3623 000011f4 00000004 0000000d
00000000
vers    00000003
CPUID   vers 0 rev 0
model   9000/720
led_init: CPU_HVERSION 200
Searching for devices in PDC firmware... processor hpa 0xfffbe000
 an older box...
Found devices:
1. Cobra Core BA (11) at 0xf082f000, versions 0x4, 0x0, 0x70, 0x0, 0x0
2. Cobra Core SCSI (10) at 0xf0825000, versions 0x4, 0x0, 0x71, 0x0, 0x0

but the driver seems to have a problem here!

SCSI subsystem driver Revision: 1.00
sim700: Couldn't get consistent shared memory
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86
scsi0: Revision 0x0
Post test1, istat 05, sstat0 00, dstat 81
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: test 1 FAILED: dsps: exp 0xab93001d, got 0x65686361
scsi0: Chip register contents:
 (script[0] at virt c7f70000, bus 7f70000)
 00  sien:  af  sdid:  00  scntl1:20  scntl0:c4
 04  socl:  00  sodl:  00  sxfer: 00  scid:  80
 08  sbcl:  00  sbdl:  00  sidl:  00  sfbr:  00
 0C  sstat2:00  sstat1:00  sstat0:00  dstat: 80
 10
 14  ctest3:92  ctest2:21  ctest1:f0  ctest0:00
 18  ctest7:00  ctest6:53  ctest5:00  ctest4:00
 1C  temp:  00000000
 20              ctest8:ff  istat: 06  dfifo: 32
 24  dbc:   635f7472  dnad:  65686361  dsp:   07f774b4
 30  dsps:  65686361
 34  dmode: 80
 38  dcntl: 80  dwt:   00  dien:  1d
 3C
Warning : device (10, 0x4, 0x0, 0x71, 0x0) NOT claimed by Lasi SCSI 53c700

Is this a known problem ?

thanks,

Damian
penfold@customware.com.au





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In the current install documentation, it describes booting of the dev
release CD, is this the 11-2000 iso available, or a newer version?
Aaron




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Aaron Macks writes...

> In the current install documentation, it describes booting of the dev
> release CD, is this the 11-2000 iso available, or a newer version?

11-2000 is the latest version.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Hi all,

I have a question for us:

I have installed pa linux 0.5 in remote on my hp pa risc:

I want to control my hp 712/60 with his keyboard and monitor, and not from
remote terminal.

I can do for it ?

Regards





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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] $$mulI missing
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I enabled "CONFIG_MODULES" to build a 64-bit kernel
and got the following link error:
arch/parisc64/kernel/kernel.o(__ksymtab+0x300): undefined reference to `$$mulI'

I'll try to work around it by using HPUX's 64-bit libmilli.a.

grant




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= I enabled "CONFIG_MODULES" to build a 64-bit kernel
= and got the following link error:
= arch/parisc64/kernel/kernel.o(__ksymtab+0x300): undefined reference to `$$mul
I'
= 
= I'll try to work around it by using HPUX's 64-bit libmilli.a.

I didn't think the 64-bit compiler used mulI so didn't include it
in the millicode routines.  I'm curious what's using it.  I can
port the HP multiply routines if needed but want to make sure it's
really needed...

	-P




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Paul Bame wrote:
> I didn't think the 64-bit compiler used mulI so didn't include it
> in the millicode routines.  I'm curious what's using it.

    arch/parisc/kernel/parisc_ksyms.c

Exported for (guess what?) CONFIG_MODULE support. :^/

I've committed the following patch. Paul tells me on 64 bit, millicode looks
to be limited to div* and rem*.

grant

diff -u -p -r1.11 parisc_ksyms.c
--- parisc_ksyms.c      2000/12/31 01:42:06     1.11
+++ parisc_ksyms.c      2001/02/01 20:16:08
@@ -97,8 +97,6 @@ extern void $$divI(void);
 extern void $$divU(void);
 extern void $$remI(void);
 extern void $$remU(void);
-extern void $$mulI(void);
-extern void $$mulU(void);
 extern void $$divU_3(void);
 extern void $$divU_5(void);
 extern void $$divU_6(void);
@@ -122,8 +120,6 @@ EXPORT_SYMBOL_NOVERS($$divI);
 EXPORT_SYMBOL_NOVERS($$divU);
 EXPORT_SYMBOL_NOVERS($$remI);
 EXPORT_SYMBOL_NOVERS($$remU);
-EXPORT_SYMBOL_NOVERS($$mulI);
-EXPORT_SYMBOL_NOVERS($$mulU);
 EXPORT_SYMBOL_NOVERS($$divU_3);
 EXPORT_SYMBOL_NOVERS($$divU_5);
 EXPORT_SYMBOL_NOVERS($$divU_6);


Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Xref: news.gmane.org gmane.linux.ports.parisc:10107

On 31 Jan, Grant Grundler wrote:
> But I don't think it's related to the register_fallback_cpu() code changes
> I made. Maybe something else I submitted that day...
I now have it booting, b ut not with today's cvs I had to revert to
2001-01-31. 
The problem is that register_driver only tries the first structure in
the array it gets, and the ASP is second in the array in busdevice.c
which causes it to never be initialized.

I also noticed that the busdev_driver_for array is marked as initdata,
but a pointer to it gets saved in arch/parisc/drivers.c.

Best Regards, Daniel

-- 






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---1463811727-1804289383-981065757=:6612
Content-Type: TEXT/plain; CHARSET=US-ASCII

On 31 Jan, Grant Grundler wrote:

.... And the patch... 

/Daniel
-- 


---1463811727-1804289383-981065757=:6612
Content-Type: TEXT/plain; CHARSET=US-ASCII
Content-Disposition: attachment ; filename="boot-fail.diff"

Index: arch/parisc/kernel/drivers.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/drivers.c,v
retrieving revision 1.10
diff -r1.10 drivers.c
54,76c54,81
< 
< 	/* link driver to the head of the global list.
< 	** The list gets built in reverse order...ideally, it shouldn't
< 	** matter but reality will eventually rear it's ugly head.
< 	*/
< 	driver->next = pa_drivers;
< 	pa_drivers = driver;
< 
< 	for (i=0; i < num_devices; i++) {
< 		device = &pa_devices[i];
< 
< 		if (device->managed)			continue;
< 		if (0 == compare_spec(device, driver))	continue;
< 
< 		if ( (*driver->callback)(device,driver) ==0) {
< 			device->managed=1;
< 		} else {
< 			printk("Warning : device (%d, 0x%x, 0x%x, 0x%x, 0x%x) NOT claimed by %s %s\n",
< 				device->hw_type,
< 				device->hversion, device->hversion_rev,
< 				device->sversion, device->sversion_rev,
< 				driver->name, driver->version);
< 		}
---
>         
>         while(0!=driver->hw_type) {
> 	   
> 	       /* link driver to the head of the global list.
> 	       ** The list gets built in reverse order...ideally, it shouldn't
> 	       ** matter but reality will eventually rear it's ugly head.
> 	       */
> 	       driver->next = pa_drivers;
> 	       pa_drivers = driver;
>         
>     
> 	       for (i=0; i < num_devices; i++) {
> 	        	device = &pa_devices[i];
> 
> 		       if (device->managed)			continue;
> 		       if (0 == compare_spec(device, driver))	continue;
> 
> 		       if ( (*driver->callback)(device,driver) ==0) {
> 			         device->managed=1;
> 		       } else {
> 			         printk("Warning : device (%d, 0x%x, 0x%x, 0x%x, 0x%x) NOT claimed by %s %s\n",
> 				        device->hw_type,
> 				        device->hversion, device->hversion_rev,
> 					device->sversion, device->sversion_rev,
> 					driver->name, driver->version);
> 		       }
> 	       }
> 	       driver++;

---1463811727-1804289383-981065757=:6612--




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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 720/50 SCSI - supported?
Date: Thu, 01 Feb 2001 23:45:23 +0100
Organization: private
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Cc: parisc-linux@thepuffingroup.com
To: penfold@customware.com.au
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Ni, I don't know this problem. The only problem I had was with the
floppy in
my 720. One command is not supported (or so, I have not debugged it).
For the first tests I disconnects the SCSI cable from the floppy
interface card
to be able to boot faster, as the SCSI driver does retries.

Cheers
	Christoph P.


penfold@customware.com.au wrote:
> 
> Hi,
> 
> after successfully cross compiling a kernel, I have a problem!
> 
> The initial bus scan seems to see the scsi controller:
> model   00002000 00000481 00000000 00000000 775e3623 000011f4 00000004 0000000d
> 00000000
> vers    00000003
> CPUID   vers 0 rev 0
> model   9000/720
> led_init: CPU_HVERSION 200
> Searching for devices in PDC firmware... processor hpa 0xfffbe000
>  an older box...
> Found devices:
> 1. Cobra Core BA (11) at 0xf082f000, versions 0x4, 0x0, 0x70, 0x0, 0x0
> 2. Cobra Core SCSI (10) at 0xf0825000, versions 0x4, 0x0, 0x71, 0x0, 0x0
> 
> but the driver seems to have a problem here!
> 
> SCSI subsystem driver Revision: 1.00
> sim700: Couldn't get consistent shared memory
> sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86
> scsi0: Revision 0x0
> Post test1, istat 05, sstat0 00, dstat 81
> sim700: WARNING IRQ probe failed, (returned 0)
> scsi0: test 1 FAILED: dsps: exp 0xab93001d, got 0x65686361
> scsi0: Chip register contents:
>  (script[0] at virt c7f70000, bus 7f70000)
>  00  sien:  af  sdid:  00  scntl1:20  scntl0:c4
>  04  socl:  00  sodl:  00  sxfer: 00  scid:  80
>  08  sbcl:  00  sbdl:  00  sidl:  00  sfbr:  00
>  0C  sstat2:00  sstat1:00  sstat0:00  dstat: 80
>  10
>  14  ctest3:92  ctest2:21  ctest1:f0  ctest0:00
>  18  ctest7:00  ctest6:53  ctest5:00  ctest4:00
>  1C  temp:  00000000
>  20              ctest8:ff  istat: 06  dfifo: 32
>  24  dbc:   635f7472  dnad:  65686361  dsp:   07f774b4
>  30  dsps:  65686361
>  34  dmode: 80
>  38  dcntl: 80  dwt:   00  dien:  1d
>  3C
> Warning : device (10, 0x4, 0x0, 0x71, 0x0) NOT claimed by Lasi SCSI 53c700
> 
> Is this a known problem ?
> 
> thanks,
> 
> Damian
> penfold@customware.com.au
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] register_fallback_cpu()
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	parisc-linux@thepuffingroup.com
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please use the .cvsrc distributed in the `buildtools' cvs archive.  this
ensures that your diffs are generated in the correct format (ie unified)

-- 
Revolutions do not require corporate support.




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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] $$mulI missing
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To: Grant Grundler <grundler@cup.hp.com>
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On Thu, 1 Feb 2001, Grant Grundler wrote:

> Paul Bame wrote:
> > I didn't think the 64-bit compiler used mulI so didn't include it
> > in the millicode routines.  I'm curious what's using it.
> 
>     arch/parisc/kernel/parisc_ksyms.c
> 
> Exported for (guess what?) CONFIG_MODULE support. :^/
> 
> I've committed the following patch. Paul tells me on 64 bit, millicode looks
> to be limited to div* and rem*.

Errm.  32 bit might still want them.  #ifndef __LP64__ ?

Alan
-- 
Linuxcare.





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Subject: Re: [parisc-linux] $$mulI missing
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On Fri, 2 Feb 2001, Alan Modra wrote:

> Errm.  32 bit might still want them.  #ifndef __LP64__ ?

Ahh, missed seeing your second commit :-)





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Alan Modra wrote:
> On Fri, 2 Feb 2001, Alan Modra wrote:
> 
> > Errm.  32 bit might still want them.  #ifndef __LP64__ ?
> 
> Ahh, missed seeing your second commit :-)

Exactly. My oversight. Thanks to Paul (Bame) for asking me the
same question. And the answer was: doh! of course! :^)

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Grant Grundler <grundler@cup.hp.com>
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5116@telia.com wrote:
> ---1463811727-1804289383-981065757=:6612
> Content-Type: TEXT/plain; CHARSET=US-ASCII
> 
> On 31 Jan, Grant Grundler wrote:
> 
> .... And the patch... 

Ok. I see the problem:
    Multiple entries in the "array" passed to register_driver()

I mistakenly deleted this line from the code:
-       for (;driver->check;driver++)  {

and the associated '}'. I'll restore the for() loop.

But Matthew is right: use the build-tools/cvsrc as your "~/.cvsrc".
It's generally easier to read.

thanks! (and sorry for the mistake)
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] New toolchain debs available
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I have built new hppa debian packages of our current binutils, gcc, and glibc 
cvs bits. They are available at,

ftp://puffin.external.hp.com/ftp/pub/parisc/binaries/new-debs/debian/

Whats new
---------
binutils-dev_2.10.91.20001013-1_hppa.deb
binutils-doc_2.10.91.20001013-1_all.deb
binutils_2.10.91.20001013-1_hppa.deb
cpp-doc_2.96.20000925-2_all.deb
cpp_2.96.20000925-2_hppa.deb
g++_2.96.20000925-2_hppa.deb
gcc-doc_2.96.20000925-2_all.deb
gcc_2.96.20000925-2_hppa.deb
glibc-doc_2.2.1-1_all.deb
libc6-dbg_2.2.1-1_hppa.deb
libc6-dev_2.2.1-1_hppa.deb
libc6-pic_2.2.1-1_hppa.deb
libc6-prof_2.2.1-1_hppa.deb
libc6_2.2.1-1_hppa.deb
libstdc++2.10-dev_2.96.20000925-2_hppa.deb
libstdc++2.10_2.96.20000925-2_hppa.deb
locales_2.2.1-1_all.deb
nscd_2.2.1-1_hppa.deb

Several people are also working to populate that directory with other debs 
built with these tools. Report any failures to the list.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: Re: [parisc-linux] WARNING: C3000 Linux problems
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Matt Taggart writes...

> Summary: Don't run Linux on a C3000 until you hear otherwise.
[snip]
> J5600, or J6000. John Marvin is still looking at the problem, I have switched

And he found it and has a patch. He will fix it in current cvs, but since 
that's a little unstable right now I have posted a pre 2.4.0-merge kernel that 
he built with this fix. It's at,

ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/vmlinux-20010201

and of course you'll need to run palo on that kernel before you can boot it.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] register_fallback_cpu()
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5116@telia.com wrote:
> On 31 Jan, Grant Grundler wrote:
> > But I don't think it's related to the register_fallback_cpu() code changes
> > I made. Maybe something else I submitted that day...
> I now have it booting, b ut not with today's cvs I had to revert to
> 2001-01-31. 
> The problem is that register_driver only tries the first structure in
> the array it gets, and the ASP is second in the array in busdevice.c
> which causes it to never be initialized.

Yup. I submitted that bug in the same batch. :^(
I've committed the fix for this. Thanks!

> I also noticed that the busdev_driver_for array is marked as initdata,
> but a pointer to it gets saved in arch/parisc/drivers.c.

Someone with system with LASI should test/commit (in that order)
this bugfix. Helge, Richard, or Matthew perhaps?

thanks,
grant




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Subject: Re: [parisc-linux] linux-2.4.0
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On Thu, Feb 01, 2001 at 02:49:32AM +0800, Andrew Shugg wrote:
> Alan Cox said:
> > > just for giggles, i merged 2.4.1-pre10 into our tree.  no conflicts.
> > 
> > Bad move. 2.4.1 is incredibly broken and unstable. Stay at 2.4.0 for testing
> 
> Darn.  What did you call the tag before the merge, Mr Wilcx?

Why, LINUS_241_PREMERGE, following our normal convention, of course.

OK, OK, I forgot to lay down the tag.  But I've laid it down retroactively.
I'm about to back the 2.4.1 merge out of the tree, let's see if this works.

-- 
Revolutions do not require corporate support.




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i've demerged 2.4.1 from the tree.  i've tagged this as LINUS_241_DEMERGE.
this was created by:

cvs up -D"2001-01-30 12:00"
cvs tag LINUS_241_PREMERGE
cvs up -A
cvs up -jLINUX_241_DEVEL -jLINUS_241_PREMERGE
	(no conflicts)
(build it, check it works, etc)
cvs ci
cvs tag LINUS_241_DEMERGE

from now on, i'm merging all linus' versions onto a branch first and
giving it a ?week? before merging them onto the trunk.  of course, for
this to work, you'll all have to promise to at least try it.

-- 
Revolutions do not require corporate support.




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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] calling PDC_PSW from head.S on A500
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To enable slave's properly, I need to call PDC to set the wide
mode as default (for trap handling). Thanks to jsm for getting
me this far. But it HPMC's in A500 PDC.
Any ideas what else I need to do?


"ser pim 0 HPMC" output is appended.
The CPU is clearly excuting PDC.
%r2 correctly contains the return ptr.
%r3 contains the PDC address called.
%sp points to a valid stack area. (virtual vs physical?)

To build, just need the two appended patches and a spanking new
XC (20010201) that Matt Taggart just posted (and will announce).

thanks,
grant


Index: include/asm-parisc/pdc.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/pdc.h,v
retrieving revision 1.23
diff -u -p -r1.23 pdc.h
--- pdc.h       2001/01/29 21:49:23     1.23
+++ pdc.h       2001/02/02 08:09:05
@@ -86,9 +86,9 @@
 #define PDC_TLB_SETUP          1       /* set up miss handling         */
  
 #define PDC_PSW                21              /* Get/Set default System Mask  */
-#define PDC_PSW_MASK            0L     /* Return mask                  */
-#define PDC_PSW_GET_DEFAULTS    1L     /* Return defaults              */
-#define PDC_PSW_SET_DEFAULTS    2L     /* Set default                  */
+#define PDC_PSW_MASK            0      /* Return mask                  */
+#define PDC_PSW_GET_DEFAULTS    1      /* Return defaults              */
+#define PDC_PSW_SET_DEFAULTS    2      /* Set default                  */
 #define PDC_PSW_ENDIAN_BIT     1       /* set for big endian           */
 #define PDC_PSW_WIDE_BIT       2       /* set for wide mode            */ 

Index: arch/parisc64/kernel/head.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc64/kernel/head.S,v
retrieving revision 1.4
diff -u -p -r1.4 head.S
--- head.S	2001/01/28 13:39:15	1.4
+++ head.S	2001/02/02 08:03:55
@@ -21,6 +21,7 @@
 
 #include <asm/assembly.h>
 #include <asm/pgtable.h>
+#include <asm/pdc.h>		/* for PDC_PSW defines */
 
 
 	.level 2.0
@@ -97,6 +98,14 @@ $pgt_fill_loop:
 	/* And the stack pointer too */
 	load32		init_task_union+TASK_SZ_ALGN,%sp
 
+	/* Act like PDC just called us - that's how slave CPUs enter */
+#define MEM_PDC_LO 0x388
+#define MEM_PDC_HI 0x35C
+	ldw		MEM_PDC_LO(%r0),%arg0
+	ldw		MEM_PDC_HI(%r0),%arg1
+	depd,z		%arg1, 31, 32, %arg2	/* move to upper word */
+	or		%arg2, %arg0, %arg0	/* combine both parts */
+
 #ifdef CONFIG_SMP
 	/* Set the smp rendevous address into page zero.
 	** It would be safer to do this in init_smp_config() but
@@ -128,6 +137,22 @@ common_stext:
 	stw		%r0,0x10(%r0)	/* MEM_RENDEZ */
 	stw		%r0,0x28(%r0)	/* MEM_RENDEZ_HI */
 #endif
+
+	/* Set Wide mode as the "Default" (eg for traps)
+	** First trap occurs *right* after (or part of) rfi for slave CPUs
+	*/
+	copy		%arg0,%r3	/* save PDCE_PROC entry */
+
+	ldo		PDC_PSW(%r0),%arg0		/* 21 */
+	ldo		PDC_PSW_SET_DEFAULTS(%r0),%arg1	/* 2 */
+	ldo		PDC_PSW_WIDE_BIT(%r0),%arg2	/* 2 */
+
+	load32		stext_pdc_ret, %rp
+
+	bv		(%r3)
+	copy		%r0,%arg3
+
+stext_pdc_ret:
 
 	/* PARANOID: clear user scratch/user space SR's */
 	mtsp	%r0,%sr0




Firmware Version  40.50

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      440  MHz   Active                 Functional         512 KB   1 MB
      1      440  MHz   Idle                   Functional         512 KB   1 MB

  Central Bus Speed (in MHz)  :        111
  Available Memory            :     262144  KB
  Good Memory Required        :      11468  KB

   Primary boot path:    0/0/1/1.15
   Alternate boot path:  0/0/2/1.15
   Console path:         0/0/4/0.0
   Keyboard path:        0/0/4/0.0

 WARNING:  The non-destructive test bit was set, so memory was not tested
            destructively.  Information only, no action required.


---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > ser pim 0 hpmc

FIRMWARE INFORMATION

   Firmware Version:          40.50


PROCESSOR PIM INFORMATION


-----------------  Processor 0 HPMC Information - PDC Version: 40.50  ------

Timestamp =    Fri Feb  2 07:58:16 GMT 2001    (20:01:02:02:07:58:16)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0x0000082000ff6242  0x0000000000000000
       0x1800082011006312  0xcb81000000000000
       0x0000087000ff6292  0x0000000000000000
       0x6000082070006062  0x0000000000000010
       0x7000082070006082  0x0000000000392400
       0x7000082379006133  0xc1bff0fffed08040
       0x0000080080006310  0x0000000000000001
       0x000008008000631f  0x0000000000000000
       0x0000082000ff6442  0x0000000000000000
       0x0000082000ff6402  0x0000000000000000
       0x0000080080006300  0x0000000000000001
       0x7000082382006343  0x0000000000070200
       0x7000082382026343  0x0000000000070200
       0x7000082382046343  0x0000000000070200
       0x7000082382066343  0x0000000000070200
       0x0000080089006200  0x0000000000000000
       0x0000080086006200  0x0000000000000000
       0x000008008000630f  0x0000000000000000


General Registers 0 - 31
00-03  0000000000000000  000000f0f0043e88  00000000c01000d0  000000f0f0043c90
04-07  00000000002e6000  00000000002e7000  00000000069db9c0  0000000000000000
08-11  00000000c034c780  00000000c034c780  000000000050b500  00000000c032d940
12-15  00000000000000f2  00000000000000fa  00000000000000f0  00000000000000ff
16-19  0000000000504d6c  00000000c034c780  000000f0f0002aa4  0000000000000060
20-23  0000000000000060  0000000000000060  fffffffff8000005  0000000000000000
24-27  0000000000000002  00000000000000b0  0000000000000015  0000000000504d6c
28-31  0000000000000018  00000000c034c770  00000000c034c780  0300000000002204


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  000000000000003f
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  000000108f74c3c7  00000000000000f0  000000f0f0044604  000000000d0012f0
20-23  0000000014340300  00000000d334c780  0000000008000008  0000000000000000
24-27  00000000002e6000  00000000002e6000  bffdfffffffffff7  0000000000000000
28-31  00000000c03212f0  0000000000000006  0000000000000000  0000000000000037

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x00000000000000f0
IIA Offset (back entry)      = 0x000000f0f0044608
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030103b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffed00000
System Requestor Address     = 0xfffffffffffa0000


Floating Point Registers 0 - 31
00-03  0010080000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  00000000c031aaf0  00000000cfc76080  00000000c031aaf0
08-11  0000000000000802  0000000000000060  00000000c037a040  00000000c032d944
12-15  000000000804000a  0000000000000001  00000000c0168d04  00000000cfff0000
16-19  00000000c02e5a00  00000000cfc76080  00000000cfff0000  0000000000000000
20-23  00000000c031aaf0  00000000c02e50c0  cccccccd00000094  00000000cccccccd
24-27  0000002f00000200  00000000cfcc1140  0000000000000034  0000000000000001
28-31  0000000000000010  0000000000000001  00000000c0145ef4  00000000c0373cb8


Check Summary                = 0xcb81000000000000
Available Memory             = 0x0000000010000000
CPU Diagnose Register 2      = 0x0300000000002204
CPU Status Register 0        = 0x2440c20000000000
CPU Status Register 1        = 0x8080000000000000
SADD LOG                     = 0x0320f9000d1112f0
Read Short LOG               = 0xc13ff0f0f0044678


--------------  Memory Error Log Information  --------------

Bus 0 Log Information

Timestamp =    Fri Feb  2 07:58:17 GMT 2001    (20:01:02:02:07:58:17)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
          X     ERR_ERROR       X            X

Bus Requestor Address      = 0xfffffffffffa0000
Bus Target Address         = 0x0000000000000000
Bus Responder Address      = 0xfffffffffed00000

Error Status Reg           = 0x0000000000000010
Runway Control Reg         = 0x0000021c00002818
Runway Address Reg         = 0xc1bff0fffed08040
Runway Data High Reg       = 0xf8018a1ff820ca01
Runway Data Low Reg        = 0xf8018a1ff820ca01
Memory Address Reg         = 0x000001ff3fffffff
Memory Address Corr Reg    = 0x000001ff3fffffff
Memory Syndrome Reg        = 0x0000000000000000
Memory Syndrome Corr Reg   = 0x0000000000000000



 Address/Control Parity Error Registers

   Address/Control Parity Error Bit (mem_addr_par_stat) Not Set



------------  I/O Module Error Log Information  ------------

Summary of IO subsystem log entries
-----------------------------------
                        Phys Loc             Vendor  Device   Severity
Description             (hex)                 Id      Id      CORR UNC FE  CW
-----------             -----                ------  ------   ----------------
System Bus Adapter RP  0x000000ffff04ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000000ffff01ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000000ffff02ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000000ffff03ff83   0x103c  0x1051              X


Detail display of IO subsystem log entries
------------------------------------------

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  2 07:58:17 GMT 2001    (20:01:02:02:07:58:17)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff04ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  2 07:58:17 GMT 2001    (20:01:02:02:07:58:17)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff01ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  2 07:58:17 GMT 2001    (20:01:02:02:07:58:17)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff02ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  2 07:58:17 GMT 2001    (20:01:02:02:07:58:17)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff03ff83

Main Menu: Enter command or menu >




From - Thu Nov 08 21:16:19 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New XC available
Date: Fri, 02 Feb 2001 01:35:27 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:10121

I have posted a new i386-linux -> hppa-linux 32 and 64bit cross-compiler at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20010201.tar.gz

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






From - Thu Nov 08 21:16:19 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problems building glibc
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Xref: news.gmane.org gmane.linux.ports.parisc:10122

Hi,

building with palinux-autobuilder from todays CVS head I get following 
problem on 32bit parisc

Greetings,
Helge

....
### Making kernel dependencies ###
## Building kernel dependencies ##
......
### Building glibc ###
## Cleaning glibc build dir ##
Running "cd /home/cvs/parisc/xc-build/ && rm -rf glibc; mkdir 
/home/cvs/parisc/xc-build/glibc"
## Configuring glibc ##
Running "cd /home/cvs/parisc/xc-build/glibc; export 
PATH=/home/cvs/parisc/xc/bin:$PATH; /home/cvs/parisc/glibc/configure 
--target=hppa-linux --host=hppa-linux --build=i386-linux  
--prefix=/opt/puffin/hppa-linux --without-cvs --disable-shared 
--disable-profile --enable-static-nss --enable-add-ons
--with-headers=/home/cvs/parisc/linux/include"

............later:

hppa-linux-gcc ../sysdeps/generic/glob.c -c -O2 -Wall -Winline 
-Wstrict-prototypes -Wwrite-strings
-g      -I../include -I. -I/home/cvs/parisc/xc-build/glibc/posix -I.. 
-I../libio  -I/home/cvs/parisc/xc-build/glibc -I../sysdeps/hppa/elf 
-I../linuxthreads/sysdeps/unix/sysv/linux/hppa 
-I../linuxthreads/sysdeps/unix/sysv/linux -I../linuxthreads/sysdeps/pthread 
-I../linuxthreads/sysdeps/unix/sysv
-I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/hppa 
-I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux 
-I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman 
-I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix 
-I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 
-I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 
-I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa 
-I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic  -nostdinc 
-isystem /home/cvs/parisc/xc/lib/gcc-lib/hppa-linux/2.96/include -isystem 
/home/cvs/parisc/linux/include -D_LIBC_REENTRANT -include 
../include/libc-symbols.h     -o
/home/cvs/parisc/xc-build/glibc/posix/glob.o
../sysdeps/generic/glob.c: In function `glob_in_dir':
../sysdeps/generic/glob.c:1446: Internal compiler error in eliminate_regs, at 
reload1.c:2505
   Please submit a full bug report.
   See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[2]: *** [/home/cvs/parisc/xc-build/glibc/posix/glob.o] Fehler 1
make[1]: *** [posix/subdir_lib] Fehler 2
make: *** [all] Fehler 2




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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: Re: [parisc-linux] calling PDC_PSW from head.S on A500
Date: Fri, 2 Feb 2001 04:45:55 -0700 (MST)
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Xref: news.gmane.org gmane.linux.ports.parisc:10123

>
> To enable slave's properly, I need to call PDC to set the wide
> mode as default (for trap handling). Thanks to jsm for getting
> me this far. But it HPMC's in A500 PDC.
> Any ideas what else I need to do?
>
>
> "ser pim 0 HPMC" output is appended.
> The CPU is clearly excuting PDC.
> %r2 correctly contains the return ptr.
> %r3 contains the PDC address called.
> %sp points to a valid stack area. (virtual vs physical?)
>

Grant,

Since you are in real mode, the stack and return pointer need to contain
physical addresses, not virtual addresses. You should load the physical
addresses instead of the virtual addresses by putting a PA() around
the expressions to load32 (See real2.S for an example). After the call
you can convert the stack pointer to virtual with the tovirt macro, i.e.:

    < make pdc call >

    tovirt %sp

John




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Problems building glibc
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On Fri, 2 Feb 2001, Helge Deller wrote:

> ../sysdeps/generic/glob.c: In function `glob_in_dir':
> ../sysdeps/generic/glob.c:1446: Internal compiler error in eliminate_regs, at 
> reload1.c:2505

It's a known bug with our mainline gcc.  Fixed on the devel branch, but
that has other problems at the moment.  For the time beingg, compile this
file at -O1.

Alan





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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: Re: [parisc-linux] Problems building glibc
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>
> Hi,
>
> building with palinux-autobuilder from todays CVS head I get following
> problem on 32bit parisc
>
> Greetings,
> Helge

Helge,

This is a known problem. The currently built compilers have a bug that
doesn't allow glibc to be built with the O2 option. You can edit the
glibc Makeconfig to fix this. Even if you have a compiler with the bug
fixed, I don't believe anyone has built and tested glibc built with
-O2 yet.

I believe the Alan Modra has already checked in a fix for this, I just
don't remember what branch the fix is on. Matt Taggart is in the process
of building new sets of tools, both native and XC, so the fix may be
available soon.

John




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From: Richard Muratti <rmurat@ibm.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems building glibc
Date: Fri, 2 Feb 2001 22:56:50 +1100
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In Makeconfig
change 
default_cflags := -g -O2
to
default_cflags := -g -O

I had the same problem and someone on the list
suggested the above

Cheers
Rick




At 12:17 PM 2/02/2001 +0100, you wrote:
>Hi,
>
>building with palinux-autobuilder from todays CVS head I get following 
>problem on 32bit parisc
>
>Greetings,
>Helge


>../include/libc-symbols.h     -o
>/home/cvs/parisc/xc-build/glibc/posix/glob.o
>../sysdeps/generic/glob.c: In function `glob_in_dir':
>../sysdeps/generic/glob.c:1446: Internal compiler error in eliminate_regs,
at 
>reload1.c:2505
>   Please submit a full bug report.
>   See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
>make[2]: *** [/home/cvs/parisc/xc-build/glibc/posix/glob.o] Fehler 1
>make[1]: *** [posix/subdir_lib] Fehler 2
>make: *** [all] Fehler 2





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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: Re: [parisc-linux] Problems building glibc
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> It's a known bug with our mainline gcc.  Fixed on the devel branch, but
> that has other problems at the moment.  For the time beingg, compile this
> file at -O1.

OK, that answers the question about what branch the fix is on. Having
run into this bug before, I know there are a bunch of other glibc files
that won't compile, so I would suggest you just build all of glibc
with -O1.

Note, I believe that Matt Taggart will be publishing a new nfs root
with a new glibc later today (and this glibc will fix the alignment
problems found on PCXS,PCXT and PCXT' processors). The glibc he built
contains the rest of the alignment fixes that I am going to commit
in the next few minutes.

John




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From: Greg Ingram <ingram@symsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C100 w/ Current CVS Bits
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Xref: news.gmane.org gmane.linux.ports.parisc:10128

Howdy,

Did it again.  CVS update, build new kernel, boot.  This one mounts the
root filesystem from a SCSI disk and then barfs copiously with this
message:

	kernel BUG at /usr/src/parisc/linux/include/asm/pgalloc.h:60!

Quick ref:  Here's the offending code from flush_cache_range():

	if (!mm->context) {
		BUG();
		return;
	}

Suggestions?

- Greg







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From: "M. Grabert" <xam@deathsdoor.com>
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Subject: Re: [parisc-linux] 720/50 SCSI - supported?
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On Thu, 1 Feb 2001 penfold@customware.com.au wrote:

> Hi,
> 
> after successfully cross compiling a kernel, I have a problem!

[blablabla] :)

seems to be the same problems I have with my 730 ...
... nearly exactly the same messages and behaviour.
Since the 720 and 730 have similar hardware AFAIK, it
could be the same problem. Unfortunately I'm not a kernel hacker
nor I have the time (because I'm working currently on my final diploma
documentation).
It doesn't matter wether a scsi floppy is connected or not, btw ...

> Is this a known problem ?

someone told me that it is known; it's because of the broken ncr700
support on 730 machine (and perhaps 720 also)

greetings, max






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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] System bus walk patch
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This is a multi-part message in MIME format.
--------------9EA6EAB9903E413CB976C299
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hello parisc-hackers,

This is the first of a series of patches to impliment an I/O tree for
parsic-linux.  I am
throwing this patch out to the list for discussion, and feedback before
committing it
to CVS because if this patch does not work, it will probably prevent
your machine from
booting. :)

The goal of this first patch is to simply add a system bus walk to the
end of  the firmware
device discovery to add additional devices not reported by the
firmware.  This patch does
not attempt to start organizing the pa_devices into a tree strucuture,
nor walk any other
native bus besides the system bus.  These features will be included in
additional patches,
after this one has been tested and committed to CVS.

I have tested this patch fairly extensively on the C200, but have not
tried it on different
machines. I would be interested in any feedback, concerns, questions
anyone has about
this patch.

Thanks,

- Ryan

--------------9EA6EAB9903E413CB976C299
Content-Type: text/plain; charset=us-ascii;
 name="iotree.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="iotree.patch"

--- arch/parisc/kernel/inventory.orig	Fri Feb  2 12:46:00 2001
+++ arch/parisc/kernel/inventory.c	Fri Feb  2 12:37:36 2001
@@ -171,59 +171,88 @@
 }
 #endif /* __LP64__ */
 
+#ifdef __LP64__
+#define FPA 0xFFFFFFFFFFF80000 /* Fixed Physical Address - Location of the Central Bus */
+#else /* !__LP64__ */
+#define FPA 0xFFF80000         /* Fixed Physical Address - Location of the Central Bus */
+#endif /* __LP64__ */
+
+/* The fixed portion is contained in hpa[14..19] for 32 bit and hpa[46..51] for 64 bit.
+** The maximum number of native devices is 2^6 (64) and the offset between devices is
+** 2^12 (0x1000).
+** - Ryan
+*/
+#define MAX_NATIVE_DEVICES 64
+#define NATIVE_DEVICE_OFFSET 0x1000
 
-
-static int do_newer_workstation_inventory(void)
+static int do_native_bus_walk(unsigned long hpa)
 {
-    long status, mod_index, addr_index;
-    struct hp_device *hp_device;
-    int num;
+	int num = 0;
+	struct hp_device *hp_device;
+	unsigned long hpa_end = hpa + (MAX_NATIVE_DEVICES * NATIVE_DEVICE_OFFSET);
+
+	for(; hpa < hpa_end; hpa += NATIVE_DEVICE_OFFSET) {
+		hp_device = alloc_pa_dev(hpa);
+		if (!hp_device)
+			continue;
+		
+		register_pa_dev(hp_device);
+		++num;
+	}
+	return num;
+}
 
-    /* So the idea here is to simply try one SYSTEM_MAP call.  If 
-       that one works, great, otherwise do it another way */
 
-    status = pdc_system_map_find_mods(&module_result, &module_path, 0);
-    if (status != PDC_RET_OK) 
-	return 0;
-    
-    /* This is for newer non-PDC-PAT boxes */
-    printk("a newer box...\n");
-    num = 0;
-    for (mod_index = 0, status = PDC_RET_OK; 
-	 status != PDC_RET_NE_PROC && status != PDC_RET_NE_MOD;
-	 mod_index++) 
-    {
-        status = pdc_system_map_find_mods(&module_result,
-				  &module_path,  mod_index);
+static int do_newer_workstation_inventory(void)
+{
+	long status, mod_index, addr_index;
+	struct hp_device *hp_device;
+	int num;
+	
+	/* So the idea here is to simply try one SYSTEM_MAP call.  If 
+	   that one works, great, otherwise do it another way */
+	
+	status = pdc_system_map_find_mods(&module_result, &module_path, 0);
 	if (status != PDC_RET_OK) 
-	    continue;
-	    
-	hp_device = alloc_pa_dev((unsigned long) module_result.mod_addr);
-	if (!hp_device)
-	    continue;
-	    
-	(void) register_pa_dev(hp_device);
-	num++;
-
-	/* if available, get the additional addresses for a module */
-	if (!module_result.add_addrs) 
-	    continue;
+		return 0;
 	
-	for (addr_index = 1; addr_index <= module_result.add_addrs; addr_index++) {
-	    status = pdc_system_map_find_addrs(
-			&addr_result, mod_index, addr_index);
-			
-	    if (status == PDC_RET_OK)
-		add_pa_dev_addr(hp_device, (unsigned long)addr_result.mod_addr);
-	    else {
-		printk("Bad PDC_FIND_ADDRESS status return (%ld) for index %ld\n",
-		    status, addr_index);
-	        status = PDC_RET_OK; /* reset status for outer loop */
-	    }
-	}
-    } /* end of main loop */
-
-    return (num > 0);
+	/* This is for newer non-PDC-PAT boxes */
+	printk("a newer box...\n");
+	num = 0;
+	for (mod_index = 0, status = PDC_RET_OK; 
+	     status != PDC_RET_NE_PROC && status != PDC_RET_NE_MOD;
+	     mod_index++) {
+		status = pdc_system_map_find_mods(&module_result,
+						  &module_path,  mod_index);
+		if (status != PDC_RET_OK) 
+			continue;
+		
+		hp_device = alloc_pa_dev((unsigned long) module_result.mod_addr);
+		if (!hp_device)
+			continue;
+		
+		(void) register_pa_dev(hp_device);
+		num++;
+		
+		/* if available, get the additional addresses for a module */
+		if (!module_result.add_addrs) 
+			continue;
+		
+		for (addr_index = 1; addr_index <= module_result.add_addrs; addr_index++) {
+			status = pdc_system_map_find_addrs(&addr_result, mod_index, addr_index);
+			if (status == PDC_RET_OK) {
+				add_pa_dev_addr(hp_device, (unsigned long)addr_result.mod_addr);
+			} else {
+				printk("Bad PDC_FIND_ADDRESS status return (%ld) for index %ld\n",
+				       status, addr_index);
+				status = PDC_RET_OK; /* reset status for outer loop */
+			}
+		}
+	} /* end of main loop */
+	
+	/* Walk the system bus */
+	num += do_native_bus_walk(FPA);
+	return (num > 0);
 }
 
 
--- arch/parisc/kernel/drivers.orig	Fri Feb  2 12:46:10 2001
+++ arch/parisc/kernel/drivers.c	Fri Feb  2 12:01:28 2001
@@ -103,15 +103,20 @@
 
 struct hp_device *alloc_pa_dev(unsigned long hpa)
 {

From - Thu Nov 08 21:16:20 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] System bus walk patch
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On Fri, Feb 02, 2001 at 01:05:40PM -0700, Ryan Bradetich wrote:
> I would be interested in any feedback, concerns, questions
> anyone has about this patch.

> --- arch/parisc/kernel/inventory.orig	Fri Feb  2 12:46:00 2001
> +++ arch/parisc/kernel/inventory.c	Fri Feb  2 12:37:36 2001
> @@ -171,59 +171,88 @@
>  }
>  #endif /* __LP64__ */
>  
> +#ifdef __LP64__
> +#define FPA 0xFFFFFFFFFFF80000 /* Fixed Physical Address - Location of the Central Bus */
> +#else /* !__LP64__ */
> +#define FPA 0xFFF80000         /* Fixed Physical Address - Location of the Central Bus */
> +#endif /* __LP64__ */

I'm sure there's a way to do this without #ifdef's... something like

#define FPA (unsigned long)-80000

but perhaps that feels obfuscated -- after all we're after an address here.

#define FPA ((unsigned long)(signed int)0xfff80000)

produces the right result (just tested it).  or perhaps we should have
a macro to give us IO space addresses.

most of what i'm about to comment on is just a reindentation to
CodingStyle of preexisting code, yes?

> +		(void) register_pa_dev(hp_device);

unnecessary cast to void.

> +		for (addr_index = 1; addr_index <= module_result.add_addrs; addr_index++) {
> +			status = pdc_system_map_find_addrs(&addr_result, mod_index, addr_index);
> +			if (status == PDC_RET_OK) {
> +				add_pa_dev_addr(hp_device, (unsigned long)addr_result.mod_addr);
> +			} else {
> +				printk("Bad PDC_FIND_ADDRESS status return (%ld) for index %ld\n",
> +				       status, addr_index);
> +				status = PDC_RET_OK; /* reset status for outer loop */
> +			}
> +		}

that's just ugly.  don't reuse the `status' variable.

		for (addr_index = 1; addr_index <= module_result.add_addrs; addr_index++) {
			int mod_status = pdc_system_map_find_addrs(&addr_result, mod_index, addr_index);
			if (mod_status) == PDC_RET_OK) {
				add_pa_dev_addr(hp_device, (unsigned long)addr_result.mod_addr);
			} else {
				printk("Bad PDC_FIND_ADDRESS status return (%ld) for index %ld\n",
					mod_status, addr_index);
			}
		}

-- 
Revolutions do not require corporate support.




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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] System bus walk patch
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> > +#ifdef __LP64__
> > +#define FPA 0xFFFFFFFFFFF80000 /* Fixed Physical Address - Location of
> > the Central Bus */ +#else /* !__LP64__ */
> > +#define FPA 0xFFF80000         /* Fixed Physical Address - Location of
> > the Central Bus */ +#endif /* __LP64__ */
>
> I'm sure there's a way to do this without #ifdef's... something like
>
> #define FPA (unsigned long)-80000
>
> but perhaps that feels obfuscated -- after all we're after an address here.
>
> #define FPA ((unsigned long)(signed int)0xfff80000)

or just as I did it in led.c
#define KITTYHAWK_LCD_CMD  (0xfffffffff0190000UL) /* 64bit-ready */ 
which is automatically casted by the compiler ?

Helge





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Subject: [parisc-linux] Source of this version of rbootd-2.0-2
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Hi PA-RISCers !

Is there a source code of "your" binary version of the rbootd.
Alle source of debian has the problem, that the file pcap.h is not
found.
I want further change the default path from /export... 
to my setup.....

Cheers
	Christoph

-- 
-------------------------------------------------------------------------
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company:	christoph.plattner@alcatel.at




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On Sat, Feb 03, 2001 at 01:51:17AM +0100, Christoph Plattner wrote:
> Hi PA-RISCers !
> 
> Is there a source code of "your" binary version of the rbootd.
> Alle source of debian has the problem, that the file pcap.h is not
> found.

you need to `apt-get install libpcap-dev', then you will have a pcap.h
and can rebuild rbootd.

-- 
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Subject: [parisc-linux] STI broken on head
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I've got a 712 heer which I'm now bootin in STI console, cos I want to get
rid of the nasty PDC hack.

However, the current CVS head dies when calling

        ret = STI_CALL(sti->init_graph, &default_init_flags, &inptr,
                &outptr, sti->glob_cfg);

sti->init_graph is 0x01f88808 which seems plausible, but it's also the
IAOQ when we die.

of course, when using STI console, you're not using serial console, so i
don't get a log of the break.

why are we calling STI routines in real mode?  i haven't seen anything
to suggest this is required in the docs yet.

-- 
Revolutions do not require corporate support.




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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] RFC: I/O tree design
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Hello parisc-linux hackers,

Here is my proposal for phase 2 of the I/O tree for parisc-linux.
This proposal covers the internal structure of the I/O tree itself.
I am not providing a patch at this time, because I want to make
sure the idea is sound before we start discussing the implimentation
details of the patch.

[Note: This proposal is a bit rough and could use some re-working
to  make it flow better, but I would rather spend my time discussing
design ideas and writing code then polishing up the design proposal].




Currently the all the "discovered" devices are either found one of
the three following ways:

    1. Firmware tells us about the device.
    2. Probing in known locations and hoping to find a device.
    3. An architect-ed bus walk.

The previous patch for walking the system bus is my first attempt
at an  bus walk on the system bus.  This design proposal
is independent of the  bus walk patch, but eventually
the  bus walk code will be needed to fill in the
missing nodes in the I/O tree.

Currently all the "discovered" I/O devices are stored in a
fixed size array which contains up to 64 devices.  This fixed
size array has already been established and is known to work,
so this proposal does not attempt to replace the fixed size
array, but instead uses indexes within the struct hp_device
to create the logical I/O tree.

To create the logical I/O tree, three u16 values will be
added to the struct hp_device which will contain the index
into the fixed array for the logical parent, sibling, and
child relationship.  I chose a u16 value over the u8 value
because it allows future expansion of the device array and
I want to reserve the largest value for marking the index
uninitialized. The following relationships are defined
below:

Parent: This index is always set to device controlling the
bus the I/O node exists on.  [Note: Just because Node A parent
is Node B does not require Node B's child to be Node A].
The device controlling the I/O node is always one of these
three components:

    - Central Bus
    - Bus Converter
    - Bus Adapter

The parent index is a quick way to determine which devices
are between the given node and the central bus.

Sibling: This index always points to the next device that
exists on the same bus. [Note: The list of devices is NOT
a doubly linked list.  Use parent->child to start at the
head of the one-way linked list].  The sibling pointers
are useful for performing an action to every device that
exists on a given bus.

Child: This index is only set to a valid node if the
current node is the Central bus, a Bus Converter, or
a Bus adapter.  When this index is set to a valid node,
it points to the head of the sibling list containing all
valid nodes for the given bus.

This proposal also calls for a special "root" node at
index 0 of the device array.  The root node is the starting
point of the I/O tree and does not have a parent, nor any
siblings.  The root node has a single child pointer which
points to the head of the sibling list for the system
bus.  Existing code needs to be modified that uses the
device array to ignore the element at index 0 unless it
is using the the device array as a logical I/O tree.

Here is a sample ASCII drawing of a theoretical I/O tree
as envisioned by this proposal.  I have taken care to
make sure the pointer relationship by using arrows to
point the directions the pointers are valid for.

+------+
| Root |<- - - -+
+------+        |
  /|\
   |            |
   |
  \|/           |
+------+     +------+
| Node |---->| Node |<- - - - - - - - - - +
+------+     +------+<- - - -+            |
  /|\          /|\
   |            |            |            |
   |            |
  \|/          \|/           |            |
+------+     +------+     +------+     +------+
| Node |     | Node |---->| Node |---->| Node |
+------+     +------+     +------+     +------+


Summary:

This phase of the I/O tree design is just to make sure
the I/O tree design itself is sound.  I will need to add
three u16 values into struct hp_device to logically the
tree in the device array.  This design proposal does not
include how to initialize and setup the parent, sibling,
and child pointers once they have been added to the
struct hp_device, nor does it cover any additional fields
that may have to be added to logically connect the devices
to form the I/O tree.  I wanted to make sure the I/O tree
design was sound before I started designing how to initialize
the tree from the given devices.

Any feedback, comments, questions, etc is greatly appreciated.

Thanks,

- Ryan







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From: penfold@customware.com.au
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Subject: Re: [parisc-linux] _working_ rbootd for redhat
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> 
> Hello !
> I will try your setup.
> 
> One more question here:
> 
> Have I to configure something concerning the LAN on the
> boot monitor prompt (PDC..) to be able to use the LAN as
> boot device ?

hmmm, not sure what you mean here.

In my case I disconnected all SCSI devices to _ensure_ the box would not
boot from disk.

All I do is let it search (or, _re_search if I had forgotten to start rbootd)
and then select path P0 to boot from.

> 
> To your question: Yes my Linux has booted. I only needed 
> this TRAP18-FIX and ..... success !!

Does your kernel see the scsi interface on the 720 ?

If so, I am keen to try your kernel - are you able to make it available
for download somewhere?
If convenient for you, you also email it to me.

Damian
penfold@customware.com.au






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Subject: Re: [parisc-linux] Source of this version of rbootd-2.0-2
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> 
> On Sat, Feb 03, 2001 at 01:51:17AM +0100, Christoph Plattner wrote:
> > Hi PA-RISCers !
> > 
> > Is there a source code of "your" binary version of the rbootd.
> > Alle source of debian has the problem, that the file pcap.h is not
> > found.
> 
> you need to `apt-get install libpcap-dev', then you will have a pcap.h
> and can rebuild rbootd.

And, in my case at least also patch defs.h :
replace 
#include <pcap.h>
with 
#include <pcap/pcap.h>

FWIW, I have libpcap-0.4-16.

Hope this helps,

Damian
penfold@customware.com.au






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On Sun, Feb 04, 2001 at 02:25:37AM +1100, penfold@customware.com.au wrote:
> And, in my case at least also patch defs.h :
> replace 
> #include <pcap.h>
> with 
> #include <pcap/pcap.h>
> 
> FWIW, I have libpcap-0.4-16.

i'm running debian potato, and i have Version: 0.4a6-3.  i didn't need
to do this.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] RFC: I/O tree design
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On Sat, Feb 03, 2001 at 12:17:52AM -0700, Ryan Bradetich wrote:
> Currently all the "discovered" I/O devices are stored in a
> fixed size array which contains up to 64 devices.  This fixed
> size array has already been established and is known to work,
> so this proposal does not attempt to replace the fixed size
> array, but instead uses indexes within the struct hp_device
> to create the logical I/O tree.

I think you need to be braver.  Kill the fixed size array.  kmalloc each
struct and use pointers to reference between them.  If you want, you
can use the doubly-linked-list macros in <linux/list.h>, but i suspect
self-managed singly-linked-lists will be more appropriate for this.
After all, it's not like the tree gets modified on a regular basis.

> Child: This index is only set to a valid node if the
> current node is the Central bus, a Bus Converter, or
> a Bus adapter.  When this index is set to a valid node,
> it points to the head of the sibling list containing all
> valid nodes for the given bus.

One advantage of doing this is that `Child' could be a pointer to a
PCI bus.

> This proposal also calls for a special "root" node at

And you don't ned a root node, just siblings.

-- 
Revolutions do not require corporate support.




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After revewing the feedback I received from this patch, I
took the liberty to cleanup arch/parisc/kernel/inventory.c
to meet the CodingStyle requirments.  I also committed my
changes to include the System Bus Walking code into cvs
head.  If this commit causes any problems for anyone, let me
know, and I'd be glad to work through the issues with them.

Thanks,

- Ryan


Ryan Bradetich wrote:

> Hello parisc-hackers,
>
> This is the first of a series of patches to impliment an I/O tree for
> parsic-linux.  I am
> throwing this patch out to the list for discussion, and feedback before
> committing it
> to CVS because if this patch does not work, it will probably prevent
> your machine from
> booting. :)
>
> The goal of this first patch is to simply add a system bus walk to the
> end of  the firmware
> device discovery to add additional devices not reported by the
> firmware.  This patch does
> not attempt to start organizing the pa_devices into a tree strucuture,
> nor walk any other
> native bus besides the system bus.  These features will be included in
> additional patches,
> after this one has been tested and committed to CVS.
>
> I have tested this patch fairly extensively on the C200, but have not
> tried it on different
> machines. I would be interested in any feedback, concerns, questions
> anyone has about
> this patch.
>
> Thanks,
>
> - Ryan
>
>

[Patch Removed]






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> i'm running debian potato, and i have Version: 0.4a6-3.  i didn't need
> to do this.

just quick check to make sure I didnt have something which I had manually
done, it seems the .rpm itself differs.


[penfold@artemis penfold]$ rpm -ql libpcap
/usr/doc/libpcap-0.4
/usr/doc/libpcap-0.4/CHANGES
/usr/doc/libpcap-0.4/README
/usr/include/pcap
/usr/include/pcap/net
/usr/include/pcap/net/bpf.h
/usr/include/pcap/pcap-namedb.h
/usr/include/pcap/pcap.h
/usr/lib/libpcap.a
/usr/man/man3/pcap.3
[penfold@artemis penfold]$ cat /etc/issue.net

Red Hat Linux release 6.1 (Cartman)
Kernel 2.2.18 on an alpha
[penfold@artemis penfold]$

I also chaeck a RH 6.2 /libpcap-0.4-19.alpha and it is the same as my 6.1.

standards are great... there are so many to choose from!

Damian
penfold@customware.com.au





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Subject: Re: [parisc-linux] Source of this version of rbootd-2.0-2
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On Sun, 4 Feb 2001 penfold@customware.com.au wrote:

> just quick check to make sure I didnt have something which I had manually
> done, it seems the .rpm itself differs.

<snip>

> I also chaeck a RH 6.2 /libpcap-0.4-19.alpha and it is the same as my 6.1.
>
> standards are great... there are so many to choose from!

... Jeff Johnson at Red Hat is the current maintainer of tpcdump,
which emits libpcap ... He is pretty conscientious, but constrained
by the need to make sure certain version usability goals are met
there to support their paying customers;  Dug Song of the OpenBSD
side has also made disparaging remarks on some former releases of
tcpdump et al by Red Hat.

Try grabbing the tcpdump _SRPM_ from the RH Rawhide (their current
devel build tree), for a later version (All SRPMS contain pristine
tarballs ...), and pull the tarball, and build from that.

I was working with the rbootd sources in the OpenBSD tree yesterday,
as well;  Has the OpenBSD PARISC port -- seemingly inactive for over
a year -- anything to offer this Linux effort?

-- Russ Herrold

(PS: JAW - you'll soon know why ...)





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As some of you will have noticed, the current Head branch, as well as
enabling lots of strange and curious segfaults also enables Software Raid.
I suspect someone with the time & inclination will eventaully write some
optimised XOR functions for PA-RISC, but in the meantime, we shall use the
generic C functions.

There are two functions to choose from, and the code does this at
boottime.  One is optimised for processors with 8 registers, and the
other for processors with 32 registers.  The 32regs one uses 8 registers,
interleaving loads, xors, and stores.  The 8regs function just dumbly
loads, xors and stores for each word.

So, just for fun, let's see how they stack up.  Here's results from a 712
(PCX/L CPU):

raid5: measuring checksumming speed
   8regs     :    60.960 MB/sec
   32regs    :   107.442 MB/sec

and here's a C200+ (PCX/U+ CPU):

   8regs     :   421.386 MB/sec
   32regs    :   531.876 MB/sec

which is as you would expect, but i have a vague recollection that grant
said the 8regs was the faster code on the A500.

[thanks to Ryan for the C200+ result]

-- 
Revolutions do not require corporate support.




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From: penfold@customware.com.au
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Subject: Re: [parisc-linux] Source of this version of rbootd-2.0-2
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> 
> On Sun, 4 Feb 2001 penfold@customware.com.au wrote:
> 
> 
> Try grabbing the tcpdump _SRPM_ from the RH Rawhide (their current
> devel build tree), for a later version (All SRPMS contain pristine
> tarballs ...), and pull the tarball, and build from that.

I wouldnt bother...

for the sake of a quick edit, I'm a happy camper.

Alternateively, a few symlinks would fix it.

Damian
penfold@customware.com.au





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From: zhao <qzhao@nc.rr.com>
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Subject: [parisc-linux] HP 712/100 problem
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I am a newbie to HP world.  Just bought a 
HP 712/100. I connected it with a standard PC keyboard & mouse, 17" HP
Ultra 1280 monitor. 
I didn't see anything on the screen, and the power led flashs 
at about twice a second.  
BTW, I used a 3.2G quantum internal SCSI drive, no floppy. 

I got linux runing on sparc & Dec machines, realy want to explore
another platform. 
Please help me. 


Thanks, 

zhao




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Subject: Re: [parisc-linux] HP 712/100 problem
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Do you have a wrong DATE on your machine !!

Don't worry about the long time of having a bloack screen !
Two point have to be considered.
(1) On my 720/50 it takes near one minute, before the monitor began to
show the three basic colors red/green/blue as test, before text is
comming.
On reason for such a long time is the memory test....

(2) If your machine is configured using the serial console and if it
does not automatic boot, then you will never see any output on the
screen.
For this connect a terminal (emulation) like `minicom' or 'hyper
terminal'
to the first serial port with 9600,8,n,1 and wait, if there is coming an
output,
but this can also take up to one minute...

I hope this helps
	Christoph


zhao wrote:
> 
> I am a newbie to HP world.  Just bought a
> HP 712/100. I connected it with a standard PC keyboard & mouse, 17" HP
> Ultra 1280 monitor.
> I didn't see anything on the screen, and the power led flashs
> at about twice a second.
> BTW, I used a 3.2G quantum internal SCSI drive, no floppy.
> 
> I got linux runing on sparc & Dec machines, realy want to explore
> another platform.
> Please help me.
> 
> Thanks,
> 
> zhao
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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On Fri, Jan 26, 2001 at 12:16:29PM -0600, Greg Ingram wrote:
> > There is a bug in more (really!), now fixed, but needs a rebuild.  If you
> > invoke it as /bin/more you'll be ok.
> 
> I believe it, I just don't believe it.  Is this related to stack
> direction?  (What is it: grows down on parisc but up on Intel and most
> other Linux-supported processors?)  If so, what is more fiddling with on
> its stack?  Does it alter its behavior based on argv[0]?  Oh well, not
> really too important now, I guess.

parsic grows up, most others grow down.  'more' checked argv[0] to see
how it was invoked, and due to a coding bug tried to read argv[0][-1].
As argv[0] is the first item on our stack, that caused a trap.

Richard





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Subject: Re: [parisc-linux] _working_ rbootd for redhat
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Hello !

For the SCSI I have nothing fixed !
It works out of the box.

I have not sent any patch. I only tried it and it works.
So to all PA-RISC hackers, add the TRAP 18 there in the main stream !!

Ok, wonderful that your machine is also booting that way...

With friendly regards
	Christoph



penfold@customware.com.au wrote:
> 
> Hi there,
> 
> > I had already success with rbootd !
> brilliant.  It's pretty striaghtforward (when you know how!!)
> 
> > Here the kernel I always boot, and I can see the scsi disk !
> 
> excellent! thanks for this.
> What needed fixing to get scsi to work?
> have the patches to fix the scsi been comitted ?
> 
> co-incidently as of about 10 minutes ago I finally got the box to boot! (yay!)
> with a kernel I built after adding the case 18: to trap.c
> 
> Do you know why this has not been comitted?
> I added the extra case 18: to my linux-20010117.tar.gz and it works,
> but I checked out the latest source archive and the fix is not in there.
> 
> thanks again,
> 
> Damian
> penfold@customware.com.au

-- 
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Subject: [parisc-linux] Pa-linux install hangs on a HP 9000 712/100
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Thanks for the former help. Now I can boot the machine. 

I tried to install PA linux on to this machine. 
When the installation starts, everythins seems fine, 
The devices are recongnized correcttly. 
My SCSI HD is on 0.0. 
It hangs after booting, the last message the installer gave is: 
Switching from PDC console. 

Do anyone have any idea about this? 

Thanks, 

zhao




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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] Pa-linux install hangs on a HP 9000 712/100
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zhao said:
> Thanks for the former help. Now I can boot the machine. 
> 
> I tried to install PA linux on to this machine. 
> When the installation starts, everythins seems fine, 
> The devices are recongnized correcttly. 
> My SCSI HD is on 0.0. 
> It hangs after booting, the last message the installer gave is: 
> Switching from PDC console. 
> 
> Do anyone have any idea about this? 
> 
> Thanks, 
> 
> zhao

Christoph may've been a little exuberant with his exclamation marks, but
he was dead on about your system having the wrong date.  Please fix the
date on the system you're sending mail from, even if only to make me
happy ...

You haven't said anything about which Linux you're trying to stick on
the box, so presumably you're using the CD?  If so, it's not hanging,
it's just switching to the serial console.  (This is in a FAQ thingy on
the website, I'm sure.)  Hook another system up to the serial A of the
HP box and you'll see what's going on.  Christoph gave the relevant
details in his post so I'll not repeat them here.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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On Thu, Feb 01, 2001 at 05:48:49PM -0700, Matt Taggart wrote:
> I have built new hppa debian packages of our current binutils, gcc, and glibc 
> cvs bits. They are available at,
> 
> ftp://puffin.external.hp.com/ftp/pub/parisc/binaries/new-debs/debian/
> ...
> Several people are also working to populate that directory with other debs 
> built with these tools. Report any failures to the list.

Would one of those wonderful people try to build modutils and drop
it in there please?  It should build fine for parisc from the
debian source these days.

Thanks,
  Richard





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Hello there,

i'm still trying running linux on hppa :-/

well, i tried both booting from scsi hd AND nfsroot/bootp

everytime it says (endless loop):


VFS: Mounted root (nfs filesystem) readonly

handle_interruption() pid=1 command='init'


PSW: 0000000000 [snip stack output]


(the same for booting from scsi hd)

Mhhh.

BTW, ASP Parallel Port driver is still broken (can't boot with it,
but can boot without it).

STI console is also broken (many characters are not printed or substitued
by spaces). The problems occur of course AFTER "switching console" !

But serial console works fine :)


Configuration: latest CVS kernel from 20010204 (about 17:00 UTC);
xc somewhere from november, the same for nfsroot.

I hope somebody can help!
Thanks In Advance,
  greetings (somewhat frustrated) max





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On Fri, 2 Feb 2001, I wrote:

> On Thu, 1 Feb 2001 penfold@customware.com.au wrote:
> 
> > Hi,
> > 
> > after successfully cross compiling a kernel, I have a problem!
> 
> [blablabla] :)
> 
> seems to be the same problems I have with my 730 ...
> ... nearly exactly the same messages and behaviour.

well, that was wrong ... se my last message!

greetings max






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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] RFC: I/O tree design
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Matthew Wilcox wrote:

> On Sat, Feb 03, 2001 at 12:17:52AM -0700, Ryan Bradetich wrote:
> > Currently all the "discovered" I/O devices are stored in a
> > fixed size array which contains up to 64 devices.  This fixed
> > size array has already been established and is known to work,
> > so this proposal does not attempt to replace the fixed size
> > array, but instead uses indexes within the struct hp_device
> > to create the logical I/O tree.
>
> I think you need to be braver.  Kill the fixed size array.  kmalloc each
> struct and use pointers to reference between them.  If you want, you
> can use the doubly-linked-list macros in <linux/list.h>, but i suspect
> self-managed singly-linked-lists will be more appropriate for this.
> After all, it's not like the tree gets modified on a regular basis.

Ok, I was bored today so I worked on removing the fixed array and
replacing it with a linked list structure using kmalloc.  After I got this
compiled and linked to work with the kernel it promply paniced on
the first kmalloc statement.  Searching around in
arch/parisc/kernel/setup.c I found this comment that fits the
description of my kmalloc problem:

/*
** KLUGE ALERT!
**
** We *really* should be using a combination of request_resource()
** and request_region()! But request_region() requires kmalloc since
** returns a new struct resource. And kmalloc just isn't available
** until after mem_init() is called from start_kernel().
**
** FIXME: assume contiguous memory initially.
**     Additional chunks of memory might be added to
sysram_resource.sibling.
*/

The do_inventory call is made before mem_init() is called which
explains why kmalloc cause the machine to panic.

So I am looking for some guidence here .... do we want to move the
do_inventory call after the mem_init call ... or do we want to stick with
the fixed size array still?


> > Child: This index is only set to a valid node if the
> > current node is the Central bus, a Bus Converter, or
> > a Bus adapter.  When this index is set to a valid node,
> > it points to the head of the sibling list containing all
> > valid nodes for the given bus.
>
> One advantage of doing this is that `Child' could be a pointer to a
> PCI bus.

I like this proposal ... that is a good justification for me to move to a
dynamic tree instead of a fixed array :)  Currently I have no idea
how the interface would look to hook all the busses togeather via
a common I/O tree.  Is their a common bus interface that I should be
matching in my I/O tree implimentation for parisc-linux?

> > This proposal also calls for a special "root" node at
>
> And you don't ned a root node, just siblings.

That would be nice :)

Thanks for the feedback willy.  I have already started hacking in an I/O
tree into my local tree using the fixed array just to work out some of the
design issues, and problems to over come.  I will probably scratch this
attempt once I get a better understanding of what I am doing.

- Ryan


> --
> Revolutions do not require corporate support.
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux





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Subject: Re: [parisc-linux] HP9000/730 problems
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> 
> Hello there,
> 
> i'm still trying running linux on hppa :-/
> 
> VFS: Mounted root (nfs filesystem) readonly
> 
> handle_interruption() pid=1 command='init'
>
you need to edit /usr/src/linux/arch/parisc/kernel/traps.c
around line 574 you will see case 15 and case 26 - add case 18.

        case 15:
        case 18:
        case 26:
 
> 
> BTW, ASP Parallel Port driver is still broken (can't boot with it,
> but can boot without it).
> 
yup!

Damian
penfold@customware.com.au





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From: Christoph Plattner <christoph.plattner@alcatel.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP9000/730 problems
Date: Mon, 05 Feb 2001 13:05:08 +0100
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Hello,

	again and again, I hope this problem will be fixed !
The reason is an older generation of the PA-RISC CPUs using
interuption (TRAP) `18', on newer CPUs this trap is defined via
new different traps, as trap 18 can have up to three reasons.

A profi hacker on HPPA, it was 
       John Marvin <jsm@udlkern.fc.hp.com>
told me to add the `case 18:' to the block with `case 15:' and
`case 26:' in arch/parisc/kernel/trap.c (I hope this is right !)
in the routine handle_interruption().

After this change, the machine boots up well !!

I hope, this fix will done also in the mainstream !!

With friendly regards
	Christoph Plattner


"M. Grabert" wrote:
> 
> Hello there,
> 
> i'm still trying running linux on hppa :-/
> 
> well, i tried both booting from scsi hd AND nfsroot/bootp
> 
> everytime it says (endless loop):
> 
> VFS: Mounted root (nfs filesystem) readonly
> 
> handle_interruption() pid=1 command='init'
> 
> PSW: 0000000000 [snip stack output]
> 
> (the same for booting from scsi hd)
> 
> Mhhh.
> 
> BTW, ASP Parallel Port driver is still broken (can't boot with it,
> but can boot without it).
> 
> STI console is also broken (many characters are not printed or substitued
> by spaces). The problems occur of course AFTER "switching console" !
> 
> But serial console works fine :)
> 
> Configuration: latest CVS kernel from 20010204 (about 17:00 UTC);
> xc somewhere from november, the same for nfsroot.
> 
> I hope somebody can help!
> Thanks In Advance,
>   greetings (somewhat frustrated) max
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955




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Subject: Re: [parisc-linux] Kernel module loader gived break
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Cc: 5116@telia.com, parisc-linux@thepuffingroup.com
To: Grant Grundler <grundler@cup.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:10159

On Sun, Jan 28, 2001 at 07:56:08PM -0800, Grant Grundler wrote:
> 5116@telia.com wrote:
> > Modprobe is not in stalled in my system (is it ported yet?).

It is.  Thanks to Bdale there is now a .deb of it in

ftp://puffin.external.hp.com/pub/parisc/binaries/new-debs/debian/

Just tried on a b180 and it seems to work ok.

Note pehc cvs modutils is no longer up to date; if you want to build
your own, you should use the latest official source.

Richard





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From: Christoph Plattner <christoph.plattner@alcatel.at>
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Subject: Re: [parisc-linux] Pa-linux install hangs on a HP 9000 712/100
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How is your console defined ?
console=ttyS0 ?

You should check the command line which is passed by palo
to the kernel !

	Christoph

zhao wrote:
> 
> Thanks for the former help. Now I can boot the machine.
> 
> I tried to install PA linux on to this machine.
> When the installation starts, everythins seems fine,
> The devices are recongnized correcttly.
> My SCSI HD is on 0.0.
> It hangs after booting, the last message the installer gave is:
> Switching from PDC console.
> 
> Do anyone have any idea about this?
> 
> Thanks,
> 
> zhao
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955




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On Sun, Feb 04, 2001 at 03:39:48PM +0100, Christoph Plattner wrote:
> Hello !
> 
> For the SCSI I have nothing fixed !
> It works out of the box.
> 
> I have not sent any patch. I only tried it and it works.
> So to all PA-RISC hackers, add the TRAP 18 there in the main stream !!

Yes, and no.  we need a proper trap 18 handler that checks to see whether
it's a page fault or a misaligned data reference, and calls the right
handler.  This should not be too hard to write, but i don't have time
right now.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] RFC: I/O tree design
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Ryan Bradetich wrote:
> Here is my proposal for phase 2 of the I/O tree for parisc-linux.

Overall, this sounds ok to me.
Just a nit WRT to terminology.

...
> This proposal also calls for a special "root" node at
> index 0 of the device array.  The root node is the starting
> point of the I/O tree and does not have a parent, nor any
> siblings.  The root node has a single child pointer which
> points to the head of the sibling list for the system
> bus.

I would call the "root" node the "parent psuedo-bus adapter"
(or something like that) of the central bus. It's special because
it generally won't represent a physical PA I/O device. But it does
contain a "lower port address" - the fixed PA IO address your
previous bus-walk patch started with.

The idea here is you can pass "hp_device *" to your PA bus walk code
and not have seperate code for central bus or GSC bus. The bus walk
code could use the "lower port address" as a new starting point to
poke around.


thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Is it not possible to add the entry in the meantime
with the well-known big triple X
	/* XXX hack.... */
for those people doing the first hackings on such old machines ?
Of course, some of these points will be forgotten....

I have not enough skills at the moment. I don't know the PA-RISC
arch here good enough, and I also have to deal with the low level
kernel code around the PA RISC here. 

Cheers
	Christoph


Matthew Wilcox wrote:
> 
> On Sun, Feb 04, 2001 at 03:39:48PM +0100, Christoph Plattner wrote:
> > Hello !
> >
> > For the SCSI I have nothing fixed !
> > It works out of the box.
> >
> > I have not sent any patch. I only tried it and it works.
> > So to all PA-RISC hackers, add the TRAP 18 there in the main stream !!
> 
> Yes, and no.  we need a proper trap 18 handler that checks to see whether
> it's a page fault or a misaligned data reference, and calls the right
> handler.  This should not be too hard to write, but i don't have time
> right now.
> 
> --
> Revolutions do not require corporate support.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955




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Matthew Wilcox wrote:
...
> One advantage of doing this is that `Child' could be a pointer to a
> PCI bus.

I don't think I want that. PCI busses have their own heirarchy
and I would much rather keep them quite seperate. At least for
the moment I would. Future abstraction of native bus access
and mgt methods might make this more interesting.

> > This proposal also calls for a special "root" node at
> 
> And you don't ned a root node, just siblings.

You are right - PCI starts out as a bunch of siblings too.
If it makes the code simpler to have a root node, then
I think it's ok to keep it.

Sometimes, it's convenient to think of the memory controller(s)
as the "parent" of the central bus and memory banks as children
(just like CPU would also be a child). This model works under ccNuma
as well with memory at multiple levels in the I/O tree.

Note that HPUX walks the "PA I/O tree" in a depth-first
fashion like PCI as well. So I expect the "siblings-only
for central bus" would be ok.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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alan's not merging some of the 82596 network driver stuff because it's
using the old Space.c method of registration.  anyone want to fix it to
use __setup?

-- 
Revolutions do not require corporate support.




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After booting the palo..0.5 cd image, i went into the
"switching from PDC console".

I then followed the recipe on switching the 712 to the
serial console, with "conspath 2/0/4.643" at the ISL prompt.
After restarting (boot sounds ok.) my monitor is black, though the indicator
changes to green (with a slight noise). I have tried to reach
the 712 from several term programs with several serial pinout.
I cant reach it.

Is it dead or can it still live?


Torben Baekgaard






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Xref: news.gmane.org gmane.linux.ports.parisc:10167

"Karen og Torben" wrote:
> After booting the palo..0.5 cd image, i went into the
> "switching from PDC console".
> 
> I then followed the recipe on switching the 712 to the
> serial console, with "conspath 2/0/4.643" at the ISL prompt.
> After restarting (boot sounds ok.) my monitor is black, though the indicator
> changes to green (with a slight noise). I have tried to reach
> the 712 from several term programs with several serial pinout.
> I cant reach it.

Try a standard *HP* 9-pin to 9-pin serial cable.
Others might work but Alex DeVries was burned by this once.
Minicom should work fine. 9600 8N1 settings.

> Is it dead or can it still live?

Even if it's "dead" (console not accessible), it could be
resurrected with a special card ("dagger") that blasts new firmware
images. No clue who in (or near) .dk might have one though.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Xref: news.gmane.org gmane.linux.ports.parisc:10168

The kernel 20010129 is borken at baranching the kernel
was is the problem ???
thanks





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gerry wrote:
> The kernel 20010129 is borken at baranching the kernel
> was is the problem ???

No clue. Need more info. Can you post the console output?
(*all* of it :^)

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Matthew Wilcox wrote:
> As some of you will have noticed, the current Head branch, as well as
> enabling lots of strange and curious segfaults also enables Software Raid.
> I suspect someone with the time & inclination will eventaully write some
> optimised XOR functions for PA-RISC, but in the meantime, we shall use the
> generic C functions.

I've pointed out to Matthew that using speculative loads (for PA2.0)
would help to preload cachelines.

> So, just for fun, let's see how they stack up.  Here's results from a 712
> (PCX/L CPU):
> 
> raid5: measuring checksumming speed
>    8regs     :    60.960 MB/sec
>    32regs    :   107.442 MB/sec
> 
> and here's a C200+ (PCX/U+ CPU):
> 
>    8regs     :   421.386 MB/sec
>    32regs    :   531.876 MB/sec
> 
> which is as you would expect, but i have a vague recollection that grant
> said the 8regs was the faster code on the A500.

Yeah. I've had both:
   8regs     :  2091.309 MB/sec
   32regs    :  2266.569 MB/sec

and

   8regs     :  2090.928 MB/sec
   32regs    :  1637.157 MB/sec

The first was from an NFS boot.
The second from the same vmlinux booted from local SCSI disk.
Don't ask me. I don't know why the difference.

On C3000 (same 64-bit kernel again):
   8regs     :  1900.809 MB/sec
   32regs    :  1799.082 MB/sec

and again with 32-bit on same C3000:
   8regs     :   950.214 MB/sec
   32regs    :   937.260 MB/sec

Both c3k results were using NFS root and "head".

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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> I've pointed out to Matthew that using speculative loads (for PA2.0)
> would help to preload cachelines.

On the x86 athlon boxes it helps massively for memcpy performance too
as a lot of our page copies are not cache->cache. The other place Arjan found
was a big win which isnt yet mainstream is prefetching task structs in
the scheduler




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From: Helge Deller <deller@gmx.de>
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On Monday 05 February 2001 00:29, M. Grabert wrote:
> BTW, ASP Parallel Port driver is still broken (can't boot with it,
> but can boot without it).

Yes, I thought I fixed it a few weeks back, but .... :-(
I would like to fix that problem, but since I don't have such a machine where 
this bug happens I will need your help. If you could send me your bootlog I 
can give it another try.

> STI console is also broken (many characters are not printed or substitued
> by spaces). The problems occur of course AFTER "switching console" !

I believe, that you used the old STI code. Please try again the code I 
checked into CVS yesteray.
But the main problem why you just see some characters is, that the HP STI rom 
code doesn't includes all characters - and the new code will not fix this 
yet. But my long term goal is to switch the STI code to use the 
framebuffer-fonts from the linux-tree (which really seems possible).

> But serial console works fine :)
Yes of course. It doesn't uses the font tables of STI ROM.

Greetings,

	Helge Deller




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On Mon, Feb 05, 2001 at 10:34:48AM -0800, Grant Grundler wrote:
> Matthew Wilcox wrote:
> ...
> > One advantage of doing this is that `Child' could be a pointer to a
> > PCI bus.
> 
> I don't think I want that. PCI busses have their own heirarchy
> and I would much rather keep them quite seperate. At least for
> the moment I would. Future abstraction of native bus access
> and mgt methods might make this more interesting.

I was thinking along the lines of:

struct hp_bus;
struct hp_device {
	[...]
	int bus_type;
	union {
		struct pci_bus *pci;
		struct hp_bus *hp;
	} child;
};

and then use the pci_bus sysdata to point to the struct hp_device which
is the parent of this pci_bus.

Rather than try to abuse the `parent' entry in the pci_bus.

> Sometimes, it's convenient to think of the memory controller(s)
> as the "parent" of the central bus and memory banks as children
> (just like CPU would also be a child). This model works under ccNuma
> as well with memory at multiple levels in the I/O tree.

Yeah, I was thinking about that.  In some of the larger systems (say,
N class), there's no real central point at which to base the bus walk,
other than the Stretch memory controller.

-- 
Revolutions do not require corporate support.




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On Mon, Feb 05, 2001 at 04:25:23PM +0000, Richard Hirst wrote:
> Note pehc cvs modutils is no longer up to date; if you want to build
> your own, you should use the latest official source.

Is it worth deleting the pehc cvs modutils then?  It will only lead to
confusion, I think.

-- 
Revolutions do not require corporate support.




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To: Matthew Wilcox <matthew@wil.cx>
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Xref: news.gmane.org gmane.linux.ports.parisc:10175

Matthew Wilcox wrote:
...
> I was thinking along the lines of:
...
> and then use the pci_bus sysdata to point to the struct hp_device which
> is the parent of this pci_bus.

Several levels of indirection are needed here.
Currently, we only store PCI bus host adapter (eg dino or elroy)
pointer here. We need to store "per device" DMA parameters here
as well and similar cruft. ie something like:

struct pa_devinfo {
	void * pa_iommu;
	void * pa_hba;
}

((pa_sysinfo *) pci_device->sysdata)

This should work for both PCI and "PCI-like" bus devices.
pa_hba* would point to PCI bus info for dino/elroy.

> Rather than try to abuse the `parent' entry in the pci_bus.

Right. parent field can never point to anything that's not a struct pci_bus.
The reason is PCI generic code walks *up* the tree and terminates on
a NULL ptr.

> Yeah, I was thinking about that.  In some of the larger systems (say,
> N class), there's no real central point at which to base the bus walk,
> other than the Stretch memory controller.

Two comments:
1) IMHO N-class really isn't that big.
2) It does have a "central bus" (Merced). Actually two of them but they
   are peers and for most cases look like one.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] RFC: I/O tree design
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Grant Grundler wrote:
> struct pa_devinfo {
> 	void * pa_iommu;
> 	void * pa_hba;
> }
> 
> ((pa_sysinfo *) pci_device->sysdata)

I meant to write
    ((pa_devinfo *) pci_device->sysdata)->pa_iommu

I also thought the pa_devinfo struct could hold flags/info which
describes device and driver DMA behaviors not passed in to
pci_map_single(). I don't expect device drivers to be modified
to manipulate this flags/info fields unless it is designed to be arch-
independent.

Stuff like this is normally stored in the HPUX I/O tree associated
with specific nodes (and thus visible to parents). Note that I only
expect the parisc-linux "I/O tree" to only deal with PA I/O devices.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] Re: HP PA-Risc with Linux
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Xref: news.gmane.org gmane.linux.ports.parisc:10177

The kernel on the CD does have problems with older 715 hardware; you
need to either wait for a new CD image, or build/download a new one
and boot over the network.  Note the 715/75 uses rbootd, not bootp.

Richard

On Tue, Jan 30, 2001 at 10:37:33AM -0700, Paul Bame wrote:
> 
> Carlos, I've forwarded your e-mail to our mailing list since I'm not
> the expert on 715 hardware.  You might also want to read through the
> FAQ and other things on our web site, www.parisc-linux.org.
> 
> The CD is pretty old and I suspect you'll have better luck with a
> newer kernel.  We are planning to produce a "0.6" ISO image Real
> Soon Now (tm).  Alternatively you can get a newer kernel
> from puffin.external.hp.com and boot from that kernel using either
> a bootp server to serve it to the 715, or DAT tape if you happen
> to have that.  Use the Linux kernel command line to indicate the
> 0.5 CD is its root (root=/dev/scd0).
> 
> = I Have some problems installing Linux, hope you have a couple of minutes =
> = to give a hand.
> = 
> = I have a Apollo 715/75 and I would like to install Linux in it. What I =
> = have done so far is:
> = downloaded "palinux-0.5.iso.gz"
> = create a CD using Adaptec CD Creator (on a PC)
> = 
> = I tried to boot from the CD rom and evrething seems to start ok, bu =
> = right after detecting the Scorpio Sr. hardware I get a Stack dump and =
> = the workstation doesn't do anything else.
> = 
> = thanks in advance
> = 
> = Regards
> = 
> = Carlos Acevedo
> = Computer Modelling Group
> 
> ---------------------------------------------------------------------------
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com with
> `unsubscribe' as the subject.
> 
> 




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From: Christoph Plattner <christoph.plattner@alcatel.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] E55 (9000/856) proprietary interfaces
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Mr. Fink,

Mr. Kaessmayer in Austria found your mail in the parisc-linux
mailing list archives concerning HP support for the HP PA-RISC
Linux project.

I contacted HP in parallel to the PA-RISC hacker, because I am
interested in using my HP server E55 (9000/856) machine with
HPPA Linux (puffing group...).

But this series of server has old proprietary interface, and so
there are no drivers for the interfaces (SCSI, 8-port serial board
multiplexer and parallel interface).

In my so little spare time, I am interested to work on that part
for having my E55 supported. Is there a possibility to get information
(hardware docu, HP-UX driver sources, etc) tp be able to do this
work ? Can anybody of the HP teams (hardware, device driver programmer,
system programmer) help me in this point ?

With friendly regards

	Christoph



-----------------------------------------------------------------
private:        christoph.plattner@dot.at
company:        christoph.plattner@alcatel.at




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Subject: Re: [parisc-linux] 720/50 SCSI - supported?
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On Thu, Feb 01, 2001 at 10:41:19PM +1100, penfold@customware.com.au wrote:
> Hi,
> 
> after successfully cross compiling a kernel, I have a problem!

How recent is your kernel?

Can you send a complete bootlog please.

Ricahrd





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Hello there!

I'm lucky again :)))))


Finally I got my HP box bootin & running Linux *smile*

There are some minor troubles, but I think these will be fixed soon,
e.g.

smb won't compile
netware won't compile
ppp_sync won't compile
fbcon-sti won't compile (at least when I don't compile STI-console)
hwclock doesn't work (can't use /dev/rtc), 'though I seems the
   time and date is read correctly (but hwclock can't set them).
   Is this a known problem ?

I think the "do_page_fault() messages & stack traces"  (, which are
   not seen when I switch VERBOSE=no in /etc/defaults/rcS,)
   are because of some segfaults whilst running some rc-scripts.
   Hope that will be fixed in the new nfsroot.

Many segfaults in sourcing / executing rc-boot-scripts and
   shutdown-scripts. Therefore (I think) I can't reboot/shutdown
   properly (last message is: "sending all processes the TERM signal").
   At least the HP doesn't reboot. But e2fsck reports ext2 is clean.

Is the well known problem of the missing termcap fixed in the new nfsroot?

Is is enough to copy nfsroot onto the scsi disc and adopt /etc/fstab,
   or should I use base.tgz ? what's the difference ?

Mhhh. missing ftp and (open)ssh, strace in (old) nfstools. Are they in the
   new one?

Does the new xc fix major problems or is it just a a little update ?
   IMHO there was a lot done for parisc64, but also for parisc(32) ?



Some questions regarding kernel support of...

networking: can I use all the protocols like ipv6, routing, masq etc?

WAX: is it still not usable ? if not, can I use all the Linux-2.4 isa
   drivers (easily) ?

modules: are kernel modules supported (fully) on parisc ?



greetings & TIA
                  max


PS: yes, quite alot of questions, but I hope that helps others, too!





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From: "MEYER,ALAN C. (HP-FtCollins,ex1)" <alan_meyer@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] E55 (9000/856) proprietary interfaces
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Christoph -

Please work through me on this one, rather than Martin.  I am the HP R&D
manager directly responsible for the PA/Linux work, while Martin is now the
overall General Manager for HP's Linux System Operation (i.e. this level of
request would just get delegated back to me anyway!).

As you know, the E55 is not supported in our current efforts.  Let me get
some input from the rest of the team on how best to approach your interest
for docs on this system, to do the work.  As you can tell from the email
replies you have sent on the E55, it is not a high priority for us at the
moment.

For now, some comments.  This project would not be where it is without the
interest and energy of people like you.  There are "volunteers" on this
effort who have contributed significantly, and we have tried to help people
by providing some documentation and (sometimes) equipment.

But, the fact is that we currently have more requests for this type of
documentation than we can handle.  So, we prioritize.  We are currently
focused very much on getting the A- & L-class systems working well.  To get
there, it has been pragmatic to get many workstations working as well - 712,
715, C-class, J-class, etc.

If it was easy to get documentation released, this would be an easier
problem.  The fact is, we first need to figure out what docs are needed,
where they are, how to get an online version, have someone review and clean
the documents so they can be released publicly.  Not only does this take
lots of time, but it can be especially difficult to even find the docs for
older products where none of the original engineers can be found.  For some
docs we have released (e.g. the Astro docs) we had an engineer spend weeks
going through this work.

This is not meant as an excuse, just the reality.  And, I should note that
the problem is not that HP is reluctant to release docs for older systems.
It is simply the time involved to get them ready for release.

So, again, we prioritze.  We have released many docs and are hoping to
release more (docs on graphics cards in next on my list).

Does this mean we will never release docs for the E55?  No, it is simply the
fact that the E55 is not our highest priority at the moment.  I hope you can
understand.

I will 


>-----Original Message-----
>From: Christoph Plattner [mailto:christoph.plattner@alcatel.at]
>Sent: Tuesday, February 06, 2001 8:45 AM
>To: martin_fink@hp.com
>Cc: parisc-linux@thepuffingroup.com; christoph.plattner@dot.at
>Subject: [parisc-linux] E55 (9000/856) proprietary interfaces
>
>
>Mr. Fink,
>
>Mr. Kaessmayer in Austria found your mail in the parisc-linux
>mailing list archives concerning HP support for the HP PA-RISC
>Linux project.
>
>I contacted HP in parallel to the PA-RISC hacker, because I am
>interested in using my HP server E55 (9000/856) machine with
>HPPA Linux (puffing group...).
>
>But this series of server has old proprietary interface, and so
>there are no drivers for the interfaces (SCSI, 8-port serial board
>multiplexer and parallel interface).
>
>In my so little spare time, I am interested to work on that part
>for having my E55 supported. Is there a possibility to get information
>(hardware docu, HP-UX driver sources, etc) tp be able to do this
>work ? Can anybody of the HP teams (hardware, device driver programmer,
>system programmer) help me in this point ?
>
>With friendly regards
>
>	Christoph
>
>
>
>-----------------------------------------------------------------
>private:        christoph.plattner@dot.at
>company:        christoph.plattner@alcatel.at
>
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
>




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Christoph -

Oops, sent that last reply before I finished ...

If you want to talk about the E55 more, please work with me directly and I
will do what I can.

Alan

>-----Original Message-----
>From: Christoph Plattner [mailto:christoph.plattner@alcatel.at]
>Sent: Tuesday, February 06, 2001 8:45 AM
>To: martin_fink@hp.com
>Cc: parisc-linux@thepuffingroup.com; christoph.plattner@dot.at
>Subject: [parisc-linux] E55 (9000/856) proprietary interfaces
>
>
>Mr. Fink,
>
>Mr. Kaessmayer in Austria found your mail in the parisc-linux
>mailing list archives concerning HP support for the HP PA-RISC
>Linux project.
>
>I contacted HP in parallel to the PA-RISC hacker, because I am
>interested in using my HP server E55 (9000/856) machine with
>HPPA Linux (puffing group...).
>
>But this series of server has old proprietary interface, and so
>there are no drivers for the interfaces (SCSI, 8-port serial board
>multiplexer and parallel interface).
>
>In my so little spare time, I am interested to work on that part
>for having my E55 supported. Is there a possibility to get information
>(hardware docu, HP-UX driver sources, etc) tp be able to do this
>work ? Can anybody of the HP teams (hardware, device driver programmer,
>system programmer) help me in this point ?
>
>With friendly regards
>
>	Christoph
>
>
>
>-----------------------------------------------------------------
>private:        christoph.plattner@dot.at
>company:        christoph.plattner@alcatel.at
>
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
>




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Subject: Re: [parisc-linux] Generic Parisc Linux Kernel Questions & 9000/730 success report
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Max,
I'm going to take a shot at answering your questions.
Some I don't know the answer.

"M. Grabert" wrote:
> Hello there!
> 
> I'm lucky again :)))))
> 
> 
> Finally I got my HP box bootin & running Linux *smile*

Excellent!


> There are some minor troubles, but I think these will be fixed soon,
> e.g.
> 
> smb won't compile
> netware won't compile
> ppp_sync won't compile

People just have to work through these issues one-by-one.
Feel free to post the issues (one per e-mail) to parisc-linux.
Include error messages from the compiler and where you
got the source from.

> fbcon-sti won't compile (at least when I don't compile STI-console)

The ESIEE team in France is doing alot of work with STI interfaces.
Hopefully they could answer this.
 
> hwclock doesn't work (can't use /dev/rtc), 'though I seems the
>    time and date is read correctly (but hwclock can't set them).
>    Is this a known problem ?

No. I had wrongly assume the /dev/rtc was on the latest NFS root
tar ball (it is not). You need to create it by hand:
	# mknod /dev/rtc c 10 135

If it already exists, then...well, post the console output of hwclock
command to parisc-linux as well.

> 
> I think the "do_page_fault() messages & stack traces"  (, which are
>    not seen when I switch VERBOSE=no in /etc/defaults/rcS,)
>    are because of some segfaults whilst running some rc-scripts.
>    Hope that will be fixed in the new nfsroot.

I think so. The patch from rhirst should help alot with this though.


> Many segfaults in sourcing / executing rc-boot-scripts and
>    shutdown-scripts. Therefore (I think) I can't reboot/shutdown
>    properly (last message is: "sending all processes the TERM signal").
>    At least the HP doesn't reboot. But e2fsck reports ext2 is clean.

ditto.

> Is the well known problem of the missing termcap fixed in the new nfsroot?

yes. (afaict).


> Is is enough to copy nfsroot onto the scsi disc and adopt /etc/fstab,
>    or should I use base.tgz ? what's the difference ?

You should be able to "install" the nfsroot as outlined in
the README.INSTALL (note that the PALO command has changed slightly).

If you want to just clobber an existing root that's in use, I think that
is a bit more complicated. Installing from NFS root or onto a different
disk should be easier.

> Mhhh. missing ftp and (open)ssh, strace in (old) nfstools. Are they in the
>    new one?

only ftp is there.
ssh has been built and used. Not sure if that was openssh.
Don't know about strace.

> Does the new xc fix major problems or is it just a a little update ?
>    IMHO there was a lot done for parisc64, but also for parisc(32) ?

Don't know. amodra?


> Some questions regarding kernel support of...
> 
> networking: can I use all the protocols like ipv6, routing, masq etc?

not tested. You *should* be able to assuming they access data
with proper address alignment.

> 
> WAX: is it still not usable ? if not, can I use all the Linux-2.4 isa
>    drivers (easily) ?

Don't know. (read my .sig "^)

> modules: are kernel modules supported (fully) on parisc ?

yes. But you need to install modutils before enabling that.
modutils_2.4.1-2_hppa.deb is available from the parisc-linux.org ftp site.

hope this helps,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Alex deVries <alex@linuxcare.com>
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Subject: Re: [parisc-linux] Generic Parisc Linux Kernel Questions & 9000/730 
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Grant Grundler wrote:
> Max wrote:
> > WAX: is it still not usable ? if not, can I use all the Linux-2.4 isa
> >    drivers (easily) ?
> 
> Don't know. (read my .sig "^)

We don't have any WAX EISA bridge work working yet... but I have docs
and it is on my to do list.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Putting open source to work.




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On Tue, Feb 06, 2001 at 12:22:03PM -0800, Grant Grundler wrote:
> Don't know about strace.

If you check it out of our cvs and build it, it should basically
work under 32 bit kernels.  I still need to tidy up before I can
integrate though.

Richard





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Hi Max,

	Here is the ESIEE Team answer! (Exactly what our experince told us :))
smb is one of the most famous questions of LWE Paris. So someone will
have to port it.
We do not think that it has been done yet

> smb won't compile
do not know> netware won't compile
do not know> ppp_sync won't compile

> fbcon-sti won't compile (at least when I don't compile STI-console)
The matter of frame buffer is quite complex. When we look at the code,
the fb-sti init is the first then came up the sti-console init. This
explained the snow you have on the screeen when you compile a kernel
with fbcon-sti and sti-console. This info can be out of date! If someone
has a better news , speak :)

> hwclock doesn't work (can't use /dev/rtc), 'though I seems the
>    time and date is read correctly (but hwclock can't set them).
>    Is this a known problem ?
We think also about /dev/rtc as Grant told you

> Is the well known problem of the missing termcap fixed in the new nfsroot?
Do not think so
> 
> Is is enough to copy nfsroot onto the scsi disc and adopt /etc/fstab,
>    or should I use base.tgz ? what's the difference ?
As we use the network for nfs and ftp, you have to configure the
following files:
/etc/hostname
/etc/network/interfaces
/etc/fstab
also you have to check
/dev/console for sti it should be linked to /dev/tty0
	     for serial it should be linked to /dev/ttyS0
It seems interesting to lokk into /etc/inittab 

> Mhhh. missing ftp and (open)ssh, strace in (old) nfstools. Are they in the
>    new one?
ftp packages (client/server) are available: http://www.esiee.fr/puffin
> 
> Does the new xc fix major problems or is it just a a little update ?
>    IMHO there was a lot done for parisc64, but also for parisc(32) ?
We agree but it is our reason to work, isn't it? 

Here ends what we could answer. Good Luck to all :)

ESIEE Team




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Subject: [parisc-linux] ICE compiling pump
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Building the Debian pump package on a J5000 running a kernel provided by jsm
last night and the latest taggart nfsroot updated with more or less everything
in the new-debs directory on pehc, I get:

cc -I. -Wall -g  -D__STANDALONE__ -DVERSION=\"0.8.3\"   -c -o dhcp.o dhcp.c
dhcp.c: In function `pumpDhcpRun':
dhcp.c:1330: Internal compiler error in eliminate_regs, at reload1.c:2505

Nothing in dmesg.  What else can/should I provide to help chase this down?

Bdale




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Subject: [parisc-linux] db2 build failed
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On the same J, building the Debian db-2.7.7 "db2" libraries fails after 
building the "important" pieces with the following:

gcc -g3 -pg  -Ibuild_unix -Iinclude -fPIC -Wall -pipe -D_REENTRANT  -c -o btreec
cc1: warning: PIC code generation is not compatible with profiling

btree/bt_compare.c: In function `__bam_cmp':
btree/bt_compare.c:137: Internal compiler error in output_90, at insn-output.c:4


Bdale




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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Generic Parisc Linux Kernel Questions & 9000/730 success report
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Xref: news.gmane.org gmane.linux.ports.parisc:10189

Hello Mr Grabert,

On Tuesday 06 February 2001 23:12, Thomas Marteau wrote:
> Hi Max,
>
> > fbcon-sti won't compile (at least when I don't compile STI-console)
>
> The matter of frame buffer is quite complex. When we look at the code,
> the fb-sti init is the first then came up the sti-console init. This
> explained the snow you have on the screeen when you compile a kernel
> with fbcon-sti and sti-console. This info can be out of date! If someone
> has a better news , speak :)

I just checked in new cleaned-up and updated code for STI console into CVS a 
few days back, which at least should compile cleanly. 
fbcon-sti belonged to the old code, which was originally written by Philipp 
Rumpf and got very outdated during all the upgrades we did from kernel 2.3.X 
to currently plain 2.4.0. Please just stand by and you will get a working STI 
console for
 - word mode ROMs,
 - byte mode ROMs,
 - monocrome STI framebuffer,
 - support for linux framebuffer fonts in STI text console,
 - (if possible: support for HP X-Servers under parisc-linux)
and much more in the future.
Please keep also in mind, that all the necessary coding is just done in my 
spare time and so it will of course take some time to get it finished. If you 
want to help speeding things up please just send patches to the list.

Greetings,

	Helge Deller




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Xref: news.gmane.org gmane.linux.ports.parisc:10190

Karsten Merker wrote:
> In fact __kernel_old_uid_t is not declared for the hppa-architecture. The
> declaration should be in include/asm-parisc/posix_types.h, I am just
> unsure what the correct declaration looks like. Has hppa-linux always been
> using 32Bit UIDs? If yes, __kernel_old_uid_t should be defined to be the
> same as __kernel_uid_t, or am I missing something here?

Missing something it seems. Me too though.  I would have defined
__kernel_old_uid_t the same as __kernel_uid_t.

Matthew Wilcox thinks both include/linux/smb_fs.h and include/linux/ncp_fs.h
should be audited and ifdef out it's compatibility code. He volunteered to
put it on his TODO list. I'm sure he'll take patches though. :^)

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] ICE compiling pump
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On Tue, 6 Feb 2001, Bdale Garbee wrote:

> Building the Debian pump package on a J5000 running a kernel provided by jsm
> last night and the latest taggart nfsroot updated with more or less everything
> in the new-debs directory on pehc, I get:
> 
> cc -I. -Wall -g  -D__STANDALONE__ -DVERSION=\"0.8.3\"   -c -o dhcp.o dhcp.c
> dhcp.c: In function `pumpDhcpRun':
> dhcp.c:1330: Internal compiler error in eliminate_regs, at reload1.c:2505

It's probably fixed on our "devel" branch gcc by these patches:

2001-01-28 Richard Henderson <rth@redhat.com>
	* reload1.c (eliminate_regs): Handle USE.  (supercedes 2001-01-25)

2001-01-25 John David Anglin <dave@hiauly1.hia.nrc.ca>
	* reload1.c (eliminate_regs): Don't abort on MEM USEs.

Our devel branch gcc isn't too bad at the moment,  eg. I'm running a
kernel, glibc and tools compiled by it.  However, there's a problem
running fixincl when building the compiler that I haven't yet tracked
down.  Workaround is to configure gcc, then edit gcc/Makefile to zap the
command that actually runs fixincl.  ie. these lines
        (TARGET_MACHINE=$(target); srcdir=`cd $(srcdir); pwd`; \
        INSTALL_ASSERT_H=$(INSTALL_ASSERT_H); SHELL=$(SHELL) ;\
        export TARGET_MACHINE srcdir INSTALL_ASSERT_H SHELL ; \
        $(SHELL) ./fixinc.sh `pwd`/include $(SYSTEM_HEADER_DIR) $(OTHER_FIXINCLUDES_DIRS); \    

Don't just set STMP_FIXINC empty; You need to get a copy of
/usr/include/limits.h into gcc/include/

Alan Modra
-- 
Linuxcare.  Support for the Revolution.





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Subject: [parisc-linux] parisc64 head.S patch
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Hi folks,
This patch is another step towards enabling SMP.
Please review and comment.

NOTE: head.S are seperate files for parisc and parisc64.

The basic change here is PDC_PSW is called to set DEFAULT_PSW bit to wide.
This *must* happen before RFIing to virtual mode. The first
thing the RFI does is cause a trap where we need land with both
feet on the ground (ie in wide mode).

Currently, PALO does this when it loads an ELF64 binary.  But since
the PDC call only applies to the CPU making the call, under SMP, all
slave CPU's have to do this too.
Paul Bame and I agree it's reasonable for PALO to not make this PDC call
and the PDC call should be in the common path between Monarch (or !SMP)
and Slave (enabled CONFIG_SMP) CPU's. Eventually, Paul intends to remove
the call from PALO.

The rest of the changes are cleanup (eg use of load32 macro)
and drop the smp_callin_rtn() which will never get invoked.

I wasn't 100% sure of one thing: usage of "TASK_PT_GR26-TASK_SZ_ALGN"
and %sp usage. I think it is and also suspect it doesn't really matter
at this point.

This code was only tested on an A500 and CONFIG_SMP=n.
(and with the init_new_context() patch from matthew)
The kernel booted fine w/o new complaints.

thanks,
grant


Index: arch/parisc64/kernel/head.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc64/kernel/head.S,v
retrieving revision 1.4
diff -u -p -r1.4 head.S
--- head.S	2001/01/28 13:39:15	1.4
+++ head.S	2001/02/07 06:21:11
@@ -21,6 +21,7 @@
 
 #include <asm/assembly.h>
 #include <asm/pgtable.h>
+#include <asm/pdc.h>		/* for PDC_PSW defines */
 
 
 	.level 2.0
@@ -88,14 +89,19 @@ $pgt_fill_loop:
 	bb,>=		%r3,8,$pgt_fill_loop
 	nop
 
-	/* Load the return address...er...crash 'n burn */
-	copy		%r0,%r2
-
 	/* And the RFI Target address too */
 	load32		start_parisc, %r11
 
 	/* And the stack pointer too */
-	load32		init_task_union+TASK_SZ_ALGN,%sp
+	load32		PA(init_task_union+TASK_SZ_ALGN),%sp
+
+	/* Act like PDC just called us - that's how slave CPUs enter */
+#define MEM_PDC_LO 0x388
+#define MEM_PDC_HI 0x35C
+	ldw		MEM_PDC_LO(%r0),%r6
+	ldw		MEM_PDC_HI(%r0),%r7
+	depd,z		%r7, 31, 32, %r3	/* move to upper word */
+	or		%r6, %r3, %r3		/* combine both parts */
 
 #ifdef CONFIG_SMP
 	/* Set the smp rendevous address into page zero.
@@ -114,21 +120,56 @@ $pgt_fill_loop:
 	/*
 	** Code Common to both Monarch and Slave processors.
 	** Entry:
-	**    %r11 must contain RFI target address.
-	**    %r25/%r26 args to pass to target function
-	**    %r2  in case rfi target decides it didn't like something
+	**    %r3	PDCE_PROC address
+	**    %r11	RFI target address.
+	**    %r26-%r23 args to pass to target function
 	**
 	** Caller must init: SR4-7, %sp, %r10, %cr24/25, 
 	*/
 common_stext:
 	.proc
 	.callinfo
-#else
+#else /* CONFIG_SMP */
 	/* Clear PDC's CPU handoff address - we won't use it */
 	stw		%r0,0x10(%r0)	/* MEM_RENDEZ */
 	stw		%r0,0x28(%r0)	/* MEM_RENDEZ_HI */
-#endif
+#endif /* CONFIG_SMP */
+
+	/* Save parameters from PALO/PDC */
+	std		%arg0, TASK_PT_GR26-TASK_SZ_ALGN(%sp)
+	std		%arg1, TASK_PT_GR25-TASK_SZ_ALGN(%sp)
+	std		%arg2, TASK_PT_GR24-TASK_SZ_ALGN(%sp)
+	std		%arg3, TASK_PT_GR23-TASK_SZ_ALGN(%sp)
+	std		%r11,  TASK_PT_GR11-TASK_SZ_ALGN(%sp)
+
+	/* Set Wide mode as the "Default" (eg for traps)
+	** First trap occurs *right* after (or part of) rfi for slave CPUs.
+	** Someday, palo might not do this for the Monarch either.
+	*/
 
+	ldo		PDC_PSW(%r0),%arg0		/* 21 */
+	ldo		PDC_PSW_SET_DEFAULTS(%r0),%arg1	/* 2 */
+	ldo		PDC_PSW_WIDE_BIT(%r0),%arg2	/* 2 */
+
+	load32		PA(stext_pdc_ret), %rp
+
+	bv		(%r3)
+	copy		%r0,%arg3
+
+stext_pdc_ret:
+	/* restore PDC/PALO parameters */
+	ldd		TASK_PT_GR26-TASK_SZ_ALGN(%sp), %arg0
+	ldd		TASK_PT_GR25-TASK_SZ_ALGN(%sp), %arg1
+	ldd		TASK_PT_GR24-TASK_SZ_ALGN(%sp), %arg2
+	ldd		TASK_PT_GR23-TASK_SZ_ALGN(%sp), %arg3
+	ldd		TASK_PT_GR11-TASK_SZ_ALGN(%sp), %r11
+
+	std		%r0, TASK_PT_GR26-TASK_SZ_ALGN(%sp)
+	std		%r0, TASK_PT_GR25-TASK_SZ_ALGN(%sp)
+	std		%r0, TASK_PT_GR24-TASK_SZ_ALGN(%sp)
+	std		%r0, TASK_PT_GR23-TASK_SZ_ALGN(%sp)
+	std		%r0, TASK_PT_GR11-TASK_SZ_ALGN(%sp)
+
 	/* PARANOID: clear user scratch/user space SR's */
 	mtsp	%r0,%sr0
 	mtsp	%r0,%sr1
@@ -141,6 +182,9 @@ common_stext:
 	mtctl	%r0,%cr12
 	mtctl	%r0,%cr13
 
+	/* Prepare to RFI! Man all the cannons! */
+	tovirt		%sp
+
 	/* Initialize the global data pointer */
 	load32		__gp,%dp
 
@@ -208,14 +252,6 @@ aligned_rfi:
 	.import smp_init_current_idle_task,data
 	.import	smp_callin,code
 
-smp_callin_rtn:
-        .proc
-	.callinfo
-	break	1,1		/*  Break if returned from start_secondary */
-	nop
-	nop
-        .procend
-
 /***************************************************************************
 *
 * smp_slave_stext is executed by all non-monarch Processors when the Monarch
@@ -239,32 +275,19 @@ smp_slave_stext:
 	mtsp	   %r0,%sr6
 	mtsp	   %r0,%sr7
 
-	/* Initialize the global data pointer */
-	ldil		L%__gp,%dp
-	ldo		R%__gp(%dp),%dp
-	depi		0, 31, 32, %dp
-
 	/*  Initialize the SP - monarch sets up smp_init_current_idle_task */
-	ldil		L%PA(smp_init_current_idle_task),%sp
-	ldo		R%PA(smp_init_current_idle_task)(%sp),%sp
-	depdi		0, 31, 32, %sp
-#ifdef __LP64__
+	load32		PA(smp_init_current_idle_task),%sp
 	ldd		0(%sp),%sp	/* load task address */
-#else
-	ldw		0(%sp),%sp	/* load task address */
-#endif
 	addil		L%TASK_SZ_ALGN,%sp	/* Stack is above task */
 	ldo		R%TASK_SZ_ALGN(%r1),%sp
 
 	/* point CPU to kernel page tables */
-	ldil		L%PA(swapper_pg_dir),%r4
-	ldo		R%PA(swapper_pg_dir)(%r4),%r4
-	depdi		0, 31, 32, %r4
+	load32		PA(swapper_pg_dir),%r4
 	mtctl		%r4,%cr24	/* Initialize kernel root pointer */
 	mtctl		%r4,%cr25	/* Initialize user root pointer */
 
-	/* Load RFI *return* address in case smp_callin bails */
-	load32		smp_callin_rtn, %r2
+	/* Setup PDCE_PROC entry */
+	copy		%arg0,%r3
 
 	/* Load RFI target address.  */
 	load32		smp_callin, %r11




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From: Christoph Plattner <christoph.plattner@alcatel.at>
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Subject: Re: [parisc-linux] //strace// Generic Parisc Linux Kernel Questions & 
 9000/730 success report
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I was definitly not able to build strace with the current tool chain
(I have built myself from Jan 13, 2001). The system calls and other
parts seem not to be compatible any more....

Richard Hirst wrote:
> 
> On Tue, Feb 06, 2001 at 12:22:03PM -0800, Grant Grundler wrote:
> > Don't know about strace.
> 
> If you check it out of our cvs and build it, it should basically
> work under 32 bit kernels.  I still need to tidy up before I can
> integrate though.
> 
> Richard
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux


-----------------------------------------------------------------
private:        christoph.plattner@dot.at
company:        christoph.plattner@alcatel.at




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Subject: [parisc-linux] R: [parisc-linux-cvs] linux jsm
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what may I download to start in video & keyboard ?
I boot only in serial
regards





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] parisc64 kernel and ret1 (gr29) setup
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Xref: news.gmane.org gmane.linux.ports.parisc:10195

On Tue, Jan 23, 2001 at 01:45:45PM +0000, Richard Hirst wrote:
> Presumably r29 needs initialising on every call from entry.S and syscall.S
> to C code, but I'm not over confident about that, so I thought I'd let
> others see my diff so far.  Comments?

So, I committed that diff, and have been looking at what happens
w.r.t. stack frame setup on interrupts.  All we seem to do is to
set sp to the top of task_struct (if in a user context), or move
sp up by a struct pt_regs if in kernel space.  In both cases,
those values are rounded up (TASK_SZ_ALGN and PT_SZ_ALIGN), so
there would probably be some space below sp, but should get_stack
be explicity allocating a stack frame really?

Richard





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Subject: Re: [parisc-linux] //strace// Generic Parisc Linux Kernel Questions & 9000/730 success report
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Xref: news.gmane.org gmane.linux.ports.parisc:10196

On Wed, Feb 07, 2001 at 08:59:25AM +0100, Christoph Plattner wrote:
> I was definitly not able to build strace with the current tool chain
> (I have built myself from Jan 13, 2001). The system calls and other
> parts seem not to be compatible any more....

I've removed the hack that made it work with old glibc that didn't
provide a sys_ptrace wrapper, so it should now be ok with a newer
toolchain.  So, if you could try again and let me know...

Richard





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From: =?iso-8859-1?Q?R=FCdiger?= Scholz <rscholz@hrzpub.tu-darmstadt.de>
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Subject: [parisc-linux] Failure making current gcc
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Dies ist eine mehrteilige Nachricht im MIME-Format.
--------------3DFB27912AD569560B01099D
Content-Type: text/plain; charset=iso-8859-1
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Hello there!

Today I've updated my sources of PA-RISC Linux in order to build a new
Crosscompiler on my Intel-Linux box. I started the "autobuilder"-script,
but it stops making gcc with a failure message.
I added a .log-file of the buildprocess.

Can somebody help me?

Greetings,
                Rdiger

--------------3DFB27912AD569560B01099D
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cmxhc3NlbiBkZXMgVmVyemVpY2huaXNzZXMgVmVyemVpY2huaXMgDQq7L29wdC9wdWZmaW4v
eGMtYnVpbGQvZ2NjL2djY6sNCg0K
--------------3DFB27912AD569560B01099D--





From - Thu Nov 08 21:16:25 2018
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From: Christoph Plattner <christoph.plattner@alcatel.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] //strace// Generic Parisc Linux Kernel Questions & 
 9000/730 success report
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Hello
	you mean, I can now check out the strace from CVS ?
And retry ??

Thanks
	Christoph

Richard Hirst wrote:
> 
> On Wed, Feb 07, 2001 at 08:59:25AM +0100, Christoph Plattner wrote:
> > I was definitly not able to build strace with the current tool chain
> > (I have built myself from Jan 13, 2001). The system calls and other
> > parts seem not to be compatible any more....
> 
> I've removed the hack that made it work with old glibc that didn't
> provide a sys_ptrace wrapper, so it should now be ok with a newer
> toolchain.  So, if you could try again and let me know...
> 
> Richard

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955




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Subject: Re: [parisc-linux] //strace// Generic Parisc Linux Kernel Questions & 9000/730 success report
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Xref: news.gmane.org gmane.linux.ports.parisc:10199

On Wed, Feb 07, 2001 at 02:25:50PM +0100, Christoph Plattner wrote:
> Hello
> 	you mean, I can now check out the strace from CVS ?
> And retry ??

Yes




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From: =?iso-8859-1?Q?R=FCdiger?= Scholz <rscholz@hrzpub.tu-darmstadt.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Failure making current gcc
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Hello again!

Sorry, but I cut away the last and most important line. Here it is:

----------- SNIP --------------------

/opt/puffin/xc-build/gcc/gcc/xgcc -B/opt/puffin/xc-build/gcc/gcc/
-B/opt/puffin/xc/hppa-linux/bin/ -B/opt/puffin/xc/hppa-linux/lib/ -isystem
/opt/puffin/xc/hppa-linux/include -DCROSS_COMPILE -DIN_GCC    -W -Wall
-Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include  -I.
-I. -I/opt/puffin/palinux/gcc/gcc -I/opt/puffin/palinux/gcc/gcc/.
-I/opt/puffin/palinux/gcc/gcc/config -I/opt/puffin/palinux/gcc/gcc/../include  -g0
\
  -finhibit-size-directive -fno-inline-functions \
  -fno-exceptions -fPIC  \
  -c /opt/puffin/palinux/gcc/gcc/crtstuff.c -DCRT_BEGIN -DCRTSTUFFS_O \
  -o crtbeginS.o
/tmp/cc0dgVTi.s: Assembler messages:
/tmp/cc0dgVTi.s:74: Internal error, aborting at
/opt/puffin/palinux/binutils/gas/write.c line 2852 in number_to_chars_bigendian
Please report this bug.
/tmp/ccrwiArd.s: Assembler messages:
/tmp/ccrwiArd.s:102: Internal error, aborting at
/opt/puffin/palinux/binutils/gas/write.c line 2852 in number_to_chars_bigendian
Please report this bug.
make[1]: *** [crtbegin.o] Fehler 1
make[1]: *** Warte auf noch nicht beendete Prozesse....
make[1]: *** [crtbeginS.o] Fehler 1
make[1]: Verlassen des Verzeichnisses Verzeichnis /opt/puffin/xc-build/gcc/gcc
make: *** [all-gcc] Fehler 2

------------------------------ SNAP ----------------------------------

So long,
                Rdiger





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From: Steven Pritchard <steve@silug.org>
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Subject: [parisc-linux] patch
Date: Wed, 7 Feb 2001 15:14:10 -0600 (CST)
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Has anyone managed to build a working patch binary?  No matter what
the input is, all I get is

    patch: **** Only garbage was found in the patch input.

If nobody has been through this already, I'll try to debug it
tonight...

Thanks.

Steve
-- 
steve@silug.org           | Southern Illinois Linux Users Group
(618)398-7320             | See web site for meeting details.
Steven Pritchard          | http://www.silug.org/




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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] //strace// Generic Parisc Linux Kernel Questions
 &  9000/730 success report
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On Wed, 7 Feb 2001, Christoph Plattner wrote:

> I was definitly not able to build strace with the current tool chain
> (I have built myself from Jan 13, 2001). The system calls and other
> parts seem not to be compatible any more....

Did you build glibc too?  I should own up to breaking our CVS glibc with

revision 1.3
date: 2001/01/16 14:09:38

and not fixing it until

revision 1.4
date: 2001/02/05 14:58:22

Alan (Embarrassed) Modra
-- 
Linuxcare.  Support for the Revolution.





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On Wed, 7 Feb 2001, [iso-8859-1] R=FCdiger Scholz wrote:

> /tmp/cc0dgVTi.s: Assembler messages:
> /tmp/cc0dgVTi.s:74: Internal error, aborting at
> /opt/puffin/palinux/binutils/gas/write.c line 2852 in number_to_chars_big=
endian
> Please report this bug.

Arrgh.  My fault, and it didn't show up in testing because I was using
"--target=3Dhppa-linux --enable-targets=3Dhppa64-linux" when building my
assembler.  Give me a few minutes and I'll have this fixed.

Thanks for the report.

Alan Modra
--=20
Linuxcare.  Support for the Revolution.





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I have compilated the kernel 20010201 , with xc-20010201
and i have scsi and ethernet problem....

thanks

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--_=__=_XaM3_Boundary.981590129.2A.620801.42.16836.52.42.101010.31186--





From - Thu Nov 08 21:16:26 2018
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X-Mozilla-Keys:                                                                                 
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715 Scsi problem
Date: Thu, 8 Feb 2001 00:16:00 +0000
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To: "arete@libero.it" <arete@libero.it>
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On Thu, Feb 08, 2001 at 12:55:29AM +0100, arete@libero.it wrote:
> I have compilated the kernel 20010201 , with xc-20010201
> and i have scsi and ethernet problem....
> 
> thanks


> SCSI subsystem driver Revision:1.00
> busdevice_alloc_irq(0xc02ac6f4): No LASI/ASP/WAX found in system yet !
> sim700:Couldn't get consistent shared memory
> sim700:Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 0, options 1

Something strange there - IRQ 0 means sim700_init_host() was called
with requested_irq=0.  Shouldn't happen.  I'll try my 715/75 tomorrow.
Which model of 715 have you got?

Richard





From - Thu Nov 08 21:16:26 2018
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X-Mozilla-Keys:                                                                                 
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From: willy@ldl.fc.hp.com (Matthew Wilcox)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] rwsems
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Currently, our read/write semaphores are NOPs.  This is not so good :-)

Here's a scheme i've devised for doing rwsems moderately efficiently;
if anyone can think of a better scheme, please shout.

(removed debugging code for clarity)

semaphore.h:

#define RWSEM_WRITER	-1
#define RWSEM_MASK	0xC0000000
#define RWSEM_BIAS_WRITE	0xC0000000
#define RWSEM_BIAS_READ		0x80000000

struct rw_semaphore {
	spinlock_t		sentry;
	signed int		rw_count;
	wait_queue_head_t	readers;
	wait_queue_head_t	writers;
};

extern inline void down_read(struct rw_semaphore *sem)
{
	spin_lock(&sem->sentry);
	if (sem->rw_count < 0)
		__down_read_failed(sem);
	sem->rw_count++;
	spin_unlock(&sem->sentry);
}

extern inline void down_write(struct rw_semaphore *sem)
{
	spin_lock(&sem->sentry);
	if (sem->rw_count != 0)
		__down_write_failed(sem);
	sem->rw_count += RWSEM_WRITER;
	spin_unlock(&sem->sentry);
}

extern inline void up_read(struct rw_semaphore *sem)
{
	spin_lock(&sem->sentry);
	if (sem->rw_count-- < 0)
		__up_read_wakeup(sem);
	spin_unlock(&sem->sentry);
}

extern inline void up_write(struct rw_semaphore *sem)
{
	spin_lock(&sem->sentry);
	sem->rw_count -= RWSEM_WRITER;
	if (sem->rw_count != 0)
		__up_write_wakeup(sem);
	spin_unlock(&sem->sentry);
}

semaphore.c:

/* We must wait for a writer to up the semaphore */
void down_read_failed(struct rw_semaphore *sem)
{
	DECLARE_WAITQUEUE(wait, current);

	/* If we're the first waiter, indicate that we exist */
	if ((sem->rw_count & RWSEM_MASK) == 0)
		sem->rw_count |= RWSEM_READ;

	__add_wait_queue(&sem->readers, &wait);
	spin_unlock(&sem->sentry);

	while (sem->rw_count < 0) {
		set_task_state(current, TASK_UNINTERRUPTIBLE);
		if (sem->rw_count >= 0)
			break;	/* We get the lock */
		schedule();
	}

	spin_lock(&sem->sentry);
	__remove_wait_queue(&sem->readers, &wait);
	current->state = TASK_RUNNING;
}

/* Wait for all previous readers to up the sempahore.
 * Since we're a writer, we'll make ourselves exclusive.
 */
void down_write_failed(struct rw_semaphore *sem)
{
	DECLARE_WAITQUEUE(wait, current);

	/* If we're the first waiter, indicate that we exist */
	if ((sem->rw_count & RWSEM_MASK) == 0)
		sem->rw_count |= RWSEM_WRITE;

	wait.flags = WQ_FLAG_EXCLUSIVE;
	__add_wait_queue_tail(&sem->writers, &wait);
	spin_unlock(&sem->sentry);

	while (sem->rw_count != 0) {
		set_task_state(current, TASK_UNINTERRUPTIBLE);
		if (sem->rw_count == 0)
			break;	/* We get the lock */
		schedule();
	}

	spin_lock(&sem->sentry);
	__remove_wait_queue(&sem->writers, &wait);
	current->state = TASK_RUNNING;
}

/* up_read_wakeup gets called spuriously when a writer is waiting
 * for the lock.  That's OK, this is slowpath now anyway.
 */
void up_read_wakeup(struct rw_semaphore *sem)
{
	/* Check to see if other readers need to up the semaphore */
	if ((sem->rw_count &~ RWSEM_MASK) != 0)
		return;

	up_write_wakeup(sem);
}

void up_write_wakeup(struct rw_semaphore *sem)
{
	/* Figure out what state to go to next. */
	if ((sem->rw_count & RWSEM_MASK) == RWSEM_WRITE) {
		int more_writers = (sem->writers.task_list.next != sem->writers.task_list.prev);
		int more_readers = list_empty(&sem->readers.task_list);
		if (more_writers) {
			if (more_readers) {
				sem->rw_count = RWSEM_READ;
			} else {
				sem->rw_count = RWSEM_WRITE;
			}
		} else {
			if (!more_readers) {
				sem->rw_count = 0;
			} else {
				sem->rw_count = RWSEM_READ;
			}
		}
		wake_up(&sem->writers);
	} else {
		int more_writers = list_empty(&sem->writers.task_list);
		if (more_writers) {
			sem->rw_count = RWSEM_WRITE;
		} else {
			sem->rw_count = 0;
		}
		wake_up(&sem->readers);
	}
}

I suspect I could encode more information in the rwcount that might
make it unnecessary to check the waitqueues explicitly.




From - Thu Nov 08 21:16:26 2018
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From: Xavier Debacker <xavier.debacker@esiee.net>
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Subject: [parisc-linux] problems building glibc
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Hi!

I tried to build a new toolchain, without success:

CVS was checked out a few minutes after Alan Modra commited tc-hppa.c
now the palinux-autobuilder ends builbing glibc:

hppa-linux-gcc ../sysdeps/generic/glob.c -c -O2 -Wall -Winline
-Wstrict-prototypes -Wwrite-strings -g      -I../include -I.
-I/home/mklxav/xc-build/glibc/posix -I.. -I../libio
-I/home/mklxav/xc-build/glibc -I../sysdeps/hppa/elf
-I../linuxthreads/sysdeps/unix/sysv/linux/hppa
-I../linuxthreads/sysdeps/unix/sysv/linux
-I../linuxthreads/sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv
-I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/hppa
-I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux
-I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman
-I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix
-I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32
-I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64
-I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa
-I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic
-nostdinc -isystem /home/mklxav/xc/lib/gcc-lib/hppa-linux/2.96/include
-isystem /home/mklxav/cvs/linux/include -D_LIBC_REENTRANT -include
../include/libc-symbols.h     -o
/home/mklxav/xc-build/glibc/posix/glob.o
../sysdeps/generic/glob.c: In function `glob_in_dir':
../sysdeps/generic/glob.c:1446: Internal compiler error in
eliminate_regs, at reload1.c:2505
   Please submit a full bug report.
   See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

make[2]: *** [/home/mklxav/xc-build/glibc/posix/glob.o] Error 1
make[1]: *** [posix/subdir_lib] Error 2
make: *** [all] Error 2
make[2]: Leaving directory `/home/mklxav/cvs/glibc/posix'
make[1]: Leaving directory `/home/mklxav/cvs/glibc'


in a new and empty user account (mklxav), I created ~/cvs in which there
are cvs files ( binutils gcc glibc linux palo ) and the include dir.

then run the palinux-autobuilder with these modifications:

$top="/home/mklxav";    # Top level
$src="$top/cvs";                # Where your checked-out CVS sources
live
$scratch="$top/xc-build";       # Where your build sub-dirs go
$tempxc="$top/xc";              # Where the temporary binutils/gcc bits
go
$xcprefix="$top/palinux";       # Where to put the final xc bits, needs
to be
                                # owned by the current user(to avoid
sudo)
$nativeprefix="$top/pa-native"; # Where the cross-compiled native tools
                                # will be installed on the native system

$logdir="$top/log";             # Where to put the log files

[...]

# update our CVS bits and includes
#&updatebits;



there were some problems building kernel dependencies the first time I
ran the script.
linux> make oldconfig
linux> make dep
seems to have fixed that.


Thanks for your help!

Xavier.
ESIEE Team
http://www.esiee.fr/puffin






From - Thu Nov 08 21:16:26 2018
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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] problems building glibc
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On Thu, 8 Feb 2001, Xavier Debacker wrote:

> ../sysdeps/generic/glob.c: In function `glob_in_dir':
> ../sysdeps/generic/glob.c:1446: Internal compiler error in
> eliminate_regs, at reload1.c:2505

Its a known bug with our mainline gcc, exposed by glibc now being
compiled at -O2 rather than -O1.  See
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-February/011609.html

Alan Modra
-- 
Linuxcare.  Support for the Revolution.





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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: [parisc-linux] Set Associative cache flushing bug
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I just checked in a fix for a bug we had when flushing the entire cache
on processors with set associative caches (PCXL2, PCXW, PCXW+). The
bug probably rarely occured on PCXL2, but happens fairly often on most
PCXW(+) machines. With this checkin we've been able to natively build
a kernel multiple times on a C3K and A500 (both with the 64 bit kernel).

So, top of branch is once again in fairly stable condition, and possibly
better than ever for PCXW/PCXW+ based machines.

John




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From: Greg Ingram <ingram@symsys.com>
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Subject: [parisc-linux] C100 runs w/ latest CVS bits
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Just reporting in...

Got the latest CVS bits this morning, built and booted my C100.  I
couldn't run after updating a few days ago.  Perhaps it's the recent cache
bug fix.

Regards,

- Greg






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From: Grant Grundler <grundler@cup.hp.com>
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Subject: [parisc-linux] more CONFIG_SMP changes to review
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Xref: news.gmane.org gmane.linux.ports.parisc:10211

Could interested folks review the following two file changes?
I'd like to commit this later tonight if possible.

arch/parisc/kernel/entry.S	Fix indexing into irq_stat[]
include/asm-parisc/assembly.h	Add shl, shlw (alias), and shld as per
				PA2.0 arch manual.

I've only tested on A500 w/CONFIG_SMP and will test
32-bit on c3k (CONFIG_SMP=n) as well.

A500 now gets past:
...
SMP: bootstrap CPU ID is 0
sboc: task 0x00000000cfff0000 for 1/1
sboc: CPU 1 state 0x0 flags 0x40
FP[1] enabled: Rev 1 Model 16
SMP: CPU:1  CR15 ffffffffffffffff CR22 804000e CR23 0
SMP: CPU:1 (num 1) came alive after 9800 _us
SMP: Total 2 of 2 processors activated (1756.36 BogoMIPS noticed).
SMP: BSP before
SMP: CPU:1  CR15 ffffffffffffffff CR22 804000e CR23 0 
SMP: CPU:1 calling cpu_idle()
SMP: BSP proceeding
...
SBA found Astro 2.1 at 0xfffffffffed00000                                       
Linux NET4.0 for Linux 2.4                                                      
Based upon Swansea University Computer Society NET3.039                         
kernel BUG at sched.c:522!
...
and then gives a stack dump with:

Kernel Fault: Code=26 regs=00000000cfff0c40 (Addr=00000024)                     


but that's good forward progress with help from recent commits
by jsm, richard, and hints from paul bame!

thanks,
grant


Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/entry.S,v
retrieving revision 1.65
diff -u -p -r1.65 entry.S
--- entry.S	2001/02/08 18:26:47	1.65
+++ entry.S	2001/02/08 20:23:30
@@ -617,21 +617,24 @@ intr_return:
 
 	.import irq_stat,data
 
-	ldil    L%irq_stat,%r19
-	ldo     R%irq_stat(%r19),%r19
+	ldil	L%irq_stat,%r19
+	ldo	R%irq_stat(%r19),%r19
 	LDIL_FIXUP(%r19)
 
 #ifdef CONFIG_SMP
-	copy    %r30,%r1
+	copy	%r30,%r1
 	/* FIXME! depi below has hardcoded dependency on kernel stack size */
-	depi    0,31,14,%r1 /* get task pointer */
-	ldw     TASK_PROCESSOR(%r1),%r20 /* get cpu # - int */
-#if (IRQSTAT_SZ == 32)
-	dep     %r20,26,27,%r20 /* shift left 5 bits */
+	depi	0,31,14,%r1 /* get task pointer */
+	ldw	TASK_PROCESSOR(%r1),%r1 /* get cpu # - int */
+	/* shift left ____cacheline_aligned (aka L1_CACHE_BYTES) amount
+	** irq_stat[] is defined using ____cacheline_aligned.
+	*/
+#if __LP64__
+	shld	%r1, 6, %r20
 #else
-#error IRQSTAT_SZ changed, fix dep
-#endif /* IRQSTAT_SZ */
-	add     %r19,%r20,%r19
+	shl	%r1, 5, %r20
+#endif
+	add     %r19,%r20,%r19	/* now have &irq_stat[smp_processor_id()] */
 #endif /* CONFIG_SMP */
 
 	ldw     IRQSTAT_SI_ACTIVE(%r19),%r20	/* hardirq.h: unsigned int */
@@ -2006,15 +2009,17 @@ syscall_check_bh:
 
 #ifdef CONFIG_SMP
 	/* sched.h: int processor */
-	ldw     TASK_PROCESSOR-TASK_SZ_ALGN-FRAME_SIZE(%r30),%r20 /* get cpu # */
-#if (IRQSTAT_SZ == 32)
-	dep     %r20,26,27,%r20 /* shift left 5 bits */
+	/* %r26 is used as scratch register to index into irq_stat[] */
+	ldw     TASK_PROCESSOR-TASK_SZ_ALGN-FRAME_SIZE(%r30),%r26 /* cpu # */
+
+	/* shift left ____cacheline_aligned (aka L1_CACHE_BYTES) bits */
+#if __LP64__
+	shld	%r26, 6, %r20
 #else
-#error IRQSTAT_SZ changed, fix dep
-#endif /* IRQSTAT_SZ */
-	add     %r19,%r20,%r19
+	shl	%r26, 5, %r20
+#endif
+	add     %r19,%r20,%r19	/* now have &irq_stat[smp_processor_id()] */
 #endif /* CONFIG_SMP */
-
 	ldw     IRQSTAT_SI_ACTIVE(%r19),%r20	/* hardirq.h: unsigned int */
 	ldw     IRQSTAT_SI_MASK(%r19),%r19	/* hardirq.h: unsigned int */
 	and     %r19,%r20,%r20

Index: include/asm-parisc/assembly.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/assembly.h,v
retrieving revision 1.15
diff -u -p -r1.15 assembly.h
--- assembly.h	2000/12/11 13:10:49	1.15
+++ assembly.h	2001/02/08 20:23:31
@@ -59,7 +59,20 @@
 	.macro	debug value
 	.endm
 
+
+	/* Shift Left - note the r and t can NOT be the same! */
+	.macro shl r, sa, t
+	dep,z	\r, 31-\sa, 32-\sa, \t
+	.endm
+
 #ifdef __LP64__
+/* Alias for pa2.0 insn name. */
+#define	shlw	shl
+
+	.macro shld r, sa, t
+	depd,z	\r, 63-\sa, 64-\sa, \t
+	.endm
+
 # define LDIL_FIXUP(reg) depdi 0,31,32,reg
 #else
 # define LDIL_FIXUP(reg)
 




From - Thu Nov 08 21:16:26 2018
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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Initial setup of the `glibc' in the target root file system
Date: Thu, 08 Feb 2001 23:49:18 +0100
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After the glibc builts perfect, I have a problem in setting up the root
!
How can I install the glibc (/lib) to the root file system.
I tried to do a "perfect copy" of the root via `tar' from
/usr/parisc/hppa-linux 
to /tftpboot/apollo (my nfs mounted root).

But how can I prepare the .../etc/ld.so.cahce file or whatever is
needed.
Using a ldconfig from the host fails, using the -r option for another
root:

	ldconfig -r /tftpboot/apollo

Ldconfig terminates without errors, but the system mounting my NFS-root
crashes
with page fault or with "cannot find libc.6.so". Only the root of the
palinux-0.5
image is working.
Which of the two error reaction occurs depends on the ldconfig and
platform.
I tried ldconfig of RH-6.1 on intel and RH-6.2 on sparc.

Whats the correct way ?

With friendly regards
	Christoph


-- 
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Subject: Re: [parisc-linux] //strace// Generic Parisc Linux Kernel Questions&  
 9000/730 success report
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Again, I have problems with strace:
-----------------------------------

(0) autoconf is ok
    automake reports errors... (I think I need that !)

configure.in: 86: `automake requires `AM_CONFIG_HEADER', not
`AC_CONFIG_HEADER'
automake: configure.in: `PACKAGE' not defined in configure.in
automake: configure.in: `VERSION' not defined in configure.in
automake: configure.in: required file `./mkinstalldirs' not found
automake: configure.in: required file `./missing' not found
automake: no `Makefile.am' found or specified


(1) The `configure' scripts reports 2 problems

bash# HOSTCC=gcc CC=hppa-linux-gcc ../configure --target=hppa-linux
--host=hppa-linux
:
:
creating Makefile
creating linux/Makefile
sed: can't read ./linux/Makefile.in: No such file or directory
creating config.h
cat: ./config.h.in: No such file or directory

(2) make fails fully ... (this is the full log of make !!)

hppa-linux-gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa
-Ilinux -I./linux -D_GNU_SOURCE  -c strace.c
defs.h:421: conflicting types for `strerror'
/usr/parisc/hppa-linux/include/string.h:229: previous declaration of
`strerror'
defs.h:424: conflicting types for `strsignal'
/usr/parisc/hppa-linux/include/string.h:306: previous declaration of
`strsignal'
strace.c:1005: conflicting types for `sys_errlist'
/usr/parisc/hppa-linux/include/stdio.h:564: previous declaration of
`sys_errlist'
strace.c:1009: parse error before '(' token
strace.c:1029: conflicting types for `sys_siglist'
/usr/parisc/hppa-linux/include/signal.h:281: previous declaration of
`sys_siglist'
make: *** [strace.o] Error 1

		
I have the glibc built cross (I built also the toolchain). The stuff was
from the
snapshot of the Jan 13th 2001 !!
The toolchain works very well !

Have I a wrong glibc version, or is strace not ready for my version yet
??

With friendly regards
	Christoph




Alan Modra wrote:
> 
> On Wed, 7 Feb 2001, Christoph Plattner wrote:
> 
> > I was definitly not able to build strace with the current tool chain
> > (I have built myself from Jan 13, 2001). The system calls and other
> > parts seem not to be compatible any more....
> 
> Did you build glibc too?  I should own up to breaking our CVS glibc with
> 
> revision 1.3
> date: 2001/01/16 14:09:38
> 
> and not fixing it until
> 
> revision 1.4
> date: 2001/02/05 14:58:22
> 
> Alan (Embarrassed) Modra
> --
> Linuxcare.  Support for the Revolution.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

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Xref: news.gmane.org gmane.linux.ports.parisc:10214

On Thu, Feb 08, 2001 at 11:42:47PM +0100, Christoph Plattner wrote:
> Again, I have problems with strace:
> -----------------------------------

Works for me, this is on a B180, latest nfsroot.tar.gz (but on local
disk), with most of the newer debs from

ftp://puffin.external.hp.com/pub/parisc/binaries/new-debs/debian/

However, I believe it worked for me before those updates also:


richard@merlin:~$ uname -a
Linux merlin 2.4.0 #2 Wed Feb 7 16:29:34 GMT 2001 parisc unknown
richard@merlin:~$ 
richard@merlin:~$ cvs checkout strace
cvs server: Updating strace
U strace/.cvsignore
U strace/COPYRIGHT
...
...
U strace/test/sfd.c
U strace/test/sig.c
richard@merlin:~$ 
richard@merlin:~$ 
richard@merlin:~$ cd strace
richard@merlin:~/strace$ autoconf
richard@merlin:~/strace$ autoheader 
richard@merlin:~/strace$ ./configure
creating cache ./config.cache
checking host system type... hppa-unknown-linux-gnu
checking for supported operating system... linux
checking for supported architecture... hppa
checking for gcc... gcc
checking whether the C compiler (gcc -D_GNU_SOURCE  ) works... yes
checking whether the C compiler (gcc -D_GNU_SOURCE  ) is a cross-compiler... no
...
...
updating cache ./config.cache
creating ./config.status
creating Makefile
creating linux/hppa/Makefile
creating config.h
richard@merlin:~/strace$ make
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c strace.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c version.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c syscall.c
syscall.c:459: warning: `decode_subcall' defined but not used
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c util.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c desc.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c file.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c ipc.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c io.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c ioctl.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c mem.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c net.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c process.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c bjm.c
bjm.c: In function `sys_query_module':
bjm.c:83: warning: int format, size_t arg (arg 4)
bjm.c:92: warning: int format, size_t arg (arg 2)
bjm.c:114: warning: int format, size_t arg (arg 2)
bjm.c:115: warning: int format, size_t arg (arg 2)
bjm.c:132: warning: int format, size_t arg (arg 2)
bjm.c:133: warning: int format, size_t arg (arg 2)
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c resource.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c signal.c
signal.c:867:2: warning: #warning NO sys_sigreturn DECODE FOR HPPA
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c sock.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c system.c
system.c: In function `sys_sysctl':
system.c:1737: warning: int format, size_t arg (arg 2)
system.c:1747: warning: int format, size_t arg (arg 3)
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c term.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c time.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c proc.c
gcc -Wall -DHAVE_CONFIG_H   -I. -Ilinux/hppa -I./linux/hppa -Ilinux -I./linux -D_GNU_SOURCE  -c stream.c
gcc  -o strace strace.o version.o syscall.o util.o desc.o file.o ipc.o io.o ioctl.o mem.o net.o process.o bjm.o resource.o signal.o sock.o system.o term.o time.o proc.o stream.o -lnsl 
richard@merlin:~/strace$ 
richard@merlin:~/strace$ 
richard@merlin:~/strace$ ./strace ./strace
execve("./strace", ["./strace"], [/* 22 vars */]) = 0
newuname({sys="Linux", node="merlin", ...}) = 0
brk(0)                                  = 0x34000
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
newfstat(3, {st_mode=S_IFREG|0644, st_size=7103, ...}) = 0
mmap(NULL, 7103, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4001c000
close(3)                                = 0
open("/lib/libnsl.so.1", O_RDONLY)      = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0J\244"..., 1024) = 1024
newfstat(3, {st_mode=S_IFREG|0644, st_size=92920, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001e000
mmap(NULL, 104028, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4001f000
mprotect(0x40035000, 13916, PROT_NONE)  = 0
mmap(0x40035000, 8192, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x15000) = 0x40035000
mmap(0x40037000, 5724, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40037000
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2k\314"..., 1024) = 1024


etc. etc.

Richard





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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] //strace// Generic Parisc Linux Kernel Questions&
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On Thu, 8 Feb 2001, Christoph Plattner wrote:

> Again, I have problems with strace:
> -----------------------------------
> 
> (0) autoconf is ok
>     automake reports errors... (I think I need that !)

Don't run automake!  As you can see..
[snip]
> automake: no `Makefile.am' found or specified

Everything goes downhill from here.

Alan
-- 
Linuxcare.  Support for the Revolution.





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Subject: [parisc-linux] another semaphore rewrite
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Here's another attempt at semaphores.  This one actually boots on a
UP J5k, caveat emptor as always.  I'm rewriting the rwsems right now,
don't look at that bit.

Index: arch/parisc/kernel/process.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/process.c,v
retrieving revision 1.27
diff -u -p -r1.27 process.c
--- process.c	2001/01/24 23:59:51	1.27
+++ process.c	2001/02/09 00:07:55
@@ -36,8 +36,6 @@
 #include <asm/gsc.h>
 #include <asm/processor.h>
 
-spinlock_t semaphore_wake_lock = SPIN_LOCK_UNLOCKED;
-
 #ifdef __LP64__
 /* The 64-bit code should work equally well in 32-bit land but I didn't
  * want to take the time to confirm that.  -PB
Index: arch/parisc/kernel/semaphore.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/semaphore.c,v
retrieving revision 1.4
diff -u -p -r1.4 semaphore.c
--- semaphore.c	2001/01/24 23:59:51	1.4
+++ semaphore.c	2001/02/09 00:07:55
@@ -1,15 +1,9 @@
 /*
- * Just taken from alpha implementation.
- * This can't work well, perhaps.
+ * Semaphore implementation Copyright (c) 2001 Matthew Wilcox
  */
-/*
- *  Generic semaphore code. Buyer beware. Do your own
- * specific changes in <asm/semaphore-helper.h>
- */
 
 #include <linux/sched.h>
-#include <asm/semaphore-helper.h>
-#include <asm/atomic.h>	/* for xchg() definitions */
+#include <linux/spinlock.h>
 
 /*
  * Semaphores are implemented using a two-way counter:
@@ -23,9 +17,6 @@
  * needs to do something only if count was negative before
  * the increment operation.
  *
- * waking_non_zero() (from asm/semaphore.h) must execute
- * atomically.
- *
  * When __up() is called, the count was negative before
  * incrementing it, and we need to wake up somebody.
  *
@@ -43,198 +34,162 @@
  */
 void __up(struct semaphore *sem)
 {
-	wake_one_more(sem);
 	wake_up(&sem->wait);
 }
 
-/*
- * Perform the "down" function.  Return zero for semaphore acquired,
- * return negative for signalled out of the function.
- *
- * If called from __down, the return is ignored and the wait loop is
- * not interruptible.  This means that a task waiting on a semaphore
- * using "down()" cannot be killed until someone does an "up()" on
- * the semaphore.
- *
- * If called from __down_interruptible, the return value gets checked
- * upon return.  If the return value is negative then the task continues
- * with the negative value in the return register (it can be tested by
- * the caller).
- *
- * Either form may be used in conjunction with "up()".
- *
- */
-
+#define DOWN_HEAD						\
+	DECLARE_WAITQUEUE(wait, current);				\
+													\
+	/* Note that someone is waiting */				\
+	if (sem->count == 0)							\
+		sem->count = -1;							\
+													\
+	/* protected by the sentry still -- use unlocked version */	\
+	wait.flags = WQ_FLAG_EXCLUSIVE;					\
+	__add_wait_queue_tail(&sem->wait, &wait);		\
+lost_race:											\
+	spin_unlock_irq(&sem->sentry);					\
+
+#define DOWN_TAIL									\
+	spin_lock_irq(&sem->sentry);			\
+	if (sem->count < 0)					\
+		goto lost_race;						\
+	__remove_wait_queue(&sem->wait, &wait);	\
+	current->state = TASK_RUNNING;			\
+	if (!waitqueue_active(&sem->wait))		\
+		sem->count = 1;
 
-#define DOWN_HEAD(task_state)						\
-									\
-									\
-	current->state = (task_state);					\
-	add_wait_queue(&sem->wait, &wait);				\
-									\
-	/*								\
-	 * Ok, we're set up.  sem->count is known to be less than zero	\
-	 * so we must wait.						\
-	 *								\
-	 * We can let go the lock for purposes of waiting.		\
-	 * We re-acquire it after awaking so as to protect		\
-	 * all semaphore operations.					\
-	 *								\
-	 * If "up()" is called before we call waking_non_zero() then	\
-	 * we will catch it right away.  If it is called later then	\
-	 * we will have to go through a wakeup cycle to catch it.	\
-	 *								\
-	 * Multiple waiters contend for the semaphore lock to see	\
-	 * who gets to gate through and who has to wait some more.	\
-	 */								\
-	for (;;) {
-
-#define DOWN_TAIL(task_state)			\
-		current->state = (task_state);	\
-	}					\
-	current->state = TASK_RUNNING;		\
-	remove_wait_queue(&sem->wait, &wait);
-
 void __down(struct semaphore * sem)
 {
-	DECLARE_WAITQUEUE(wait, current);
+	DOWN_HEAD
 
-	DOWN_HEAD(TASK_UNINTERRUPTIBLE)
-	if (waking_non_zero(sem))
-		break;
-	schedule();
-	DOWN_TAIL(TASK_UNINTERRUPTIBLE)
+	for(;;) {
+		set_task_state(current, TASK_INTERRUPTIBLE);
+		/* we can _read_ this without the sentry */
+		if (sem->count >= 0)
+			break;
+ 		schedule();
+ 	}
+
+	DOWN_TAIL
 }
 
 int __down_interruptible(struct semaphore * sem)
 {
-	DECLARE_WAITQUEUE(wait, current);
 	int ret = 0;
-
-	DOWN_HEAD(TASK_INTERRUPTIBLE)
-
-	ret = waking_non_zero_interruptible(sem, current);
-	if (ret)
-	{
-		if (ret == 1)
-			/* ret != 0 only if we get interrupted -arca */
-			ret = 0;
-		break;
-	}
-	schedule();
-	DOWN_TAIL(TASK_INTERRUPTIBLE)
-	return ret;
-}
-
-int __down_trylock(struct semaphore * sem)
-{
-	return waking_non_zero_trylock(sem);
-}
-
-
-/* Wait for the lock to become unbiased.  Readers
- * are non-exclusive. =)
- */
-void down_read_failed(struct rw_semaphore *sem)
-{
-	DECLARE_WAITQUEUE(wait, current);
 
-	__up_read(sem);	/* this takes care of granting the lock */
+	DOWN_HEAD
 
-	add_wait_queue(&sem->wait, &wait);
+	for(;;) {
+		set_task_state(current, TASK_INTERRUPTIBLE);
+		/* we can _read_ this without the sentry */
+		if (sem->count >= 0)
+			break;
 
-	while (atomic_read(&sem->count) < 0) {
-		set_task_state(current, TASK_UNINTERRUPTIBLE);
-		if (atomic_read(&sem->count) >= 0)
+		if (signal_pending(current)) {
+			ret = -EINTR;
 			break;
+		}
 		schedule();
 	}
-
-	remove_wait_queue(&sem->wait, &wait);
-	current->state = TASK_RUNNING;
-}
-
-void down_read_failed_biased(struct rw_semaphore *sem)
-{
-	DECLARE_WAITQUEUE(wait, current);
 
-	add_wait_queue(&sem->wait, &wait);	/* put ourselves at the head of the list */
+	DOWN_TAIL
 
-	for (;;) {
-		if (sem->read_bias_granted && xchg(&sem->read_bias_granted, 0))
-			break;
-		set_task_state(current, TASK_UNINTERRUPTIBLE);
-                if (!sem->read_bias_granted)
-			schedule();
-	}
-
-	remove_wait_queue(&sem->wait, &wait);
-	current->state = TASK_RUNNING;
+	return ret;
 }
 
+/* Read/write semaphores below this point */
 
-/* Wait for the lock to become unbiased. Since we're
- * a writer, we'll make ourselves exclusive.
- */
-void down_write_failed(struct rw_semaphore *sem)
+/* We must wait for a writer to up the semaphore */
+void down_read_failed(struct rw_semaphore *sem)
 {
 	DECLARE_WAITQUEUE(wait, current);
 
-	__up_write(sem);	/* this takes care of granting the lock */
+	/* If we're the first waiter, indicate that we exist */
+	if ((sem->rw_count & RWSEM_MASK) == 0)
+		sem->rw_count |= RWSEM_READ;
 
-	add_wait_queue_exclusive(&sem->wait, &wait);
+	__add_wait_queue(&sem->readers, &wait);
+	spin_unlock(&sem->sentry);
 
-	while (atomic_read(&sem->count) < 0) {
+	while (sem->rw_count < 0) {
 		set_task_state(current, TASK_UNINTERRUPTIBLE);
-		if (atomic_read(&sem->count) >= 0)
-			break;	/* we must attempt to aquire or bias the lock */
+		if (sem->rw_count >= 0)
+			break;	/* We get the lock */
 		schedule();
 	}
 
-	remove_wait_queue(&sem->wait, &wait);
+	spin_lock(&sem->sentry);
+	__remove_wait_queue(&sem->readers, &wait);
 	current->state = TASK_RUNNING;
 }
 
-void down_write_failed_biased(struct rw_semaphore *sem)
+/* Wait for all previous readers to up the sempahore.
+ * Since we're a writer, we'll make ourselves exclusive.
+ */
+void down_write_failed(struct rw_semaphore *sem)
 {
 	DECLARE_WAITQUEUE(wait, current);
 
-	add_wait_queue_exclusive(&sem->write_bias_wait, &wait);	/* put ourselves at the end of the list */
+	/* If we're the first waiter, indicate that we exist */
+	if ((sem->rw_count & RWSEM_MASK) == 0)
+		sem->rw_count |= RWSEM_WRITE;
+
+	wait.flags = WQ_FLAG_EXCLUSIVE;
+	__add_wait_queue_tail(&sem->writers, &wait);
+	spin_unlock(&sem->sentry);
 
-	for (;;) {
-		if (sem->write_bias_granted && xchg(&sem->write_bias_granted, 0))
-			break;
+	while (sem->rw_count != 0) {
 		set_task_state(current, TASK_UNINTERRUPTIBLE);
-		if (!sem->write_bias_granted)
-			schedule();
+		if (sem->rw_count == 0)
+			break;	/* We get the lock */
+		schedule();
 	}
 
-	remove_wait_queue(&sem->write_bias_wait, &wait);
+	spin_lock(&sem->sentry);
+	__remove_wait_queue(&sem->writers, &wait);
 	current->state = TASK_RUNNING;
-
-	/* if the lock is currently unbiased, awaken the sleepers
-	 * FIXME: this wakes up the readers early in a bit of a
-	 * stampede -> bad!
-	 */
-	if (atomic_read(&sem->count) >= 0)
-		wake_up(&sem->wait);
 }
-
 
-/* Called when someone has done an up that transitioned from
- * negative to non-negative, meaning that the lock has been
- * granted to whomever owned the bias.
+/* up_read_wakeup gets called spuriously when a writer is waiting
+ * for the lock.  That's OK, this is slowpath now anyway.
  */
-void rwsem_wake_readers(struct rw_semaphore *sem)
+void up_read_wakeup(struct rw_semaphore *sem)
 {
-	if (xchg(&sem->read_bias_granted, 1))
-		BUG();
-	wake_up(&sem->wait);
-}
-
-void rwsem_wake_writer(struct rw_semaphore *sem)
-{
-	if (xchg(&sem->write_bias_granted, 1))
-		BUG();
-	wake_up(&sem->write_bias_wait);
+	/* Check to see if other readers need to up the semaphore */
+	if ((sem->rw_count &~ RWSEM_MASK) != 0)
+		return;
+
+	up_write_wakeup(sem);
+}
+
+void up_write_wakeup(struct rw_semaphore *sem)
+{
+	/* Figure out what state to go to next. */
+	if ((sem->rw_count & RWSEM_MASK) == RWSEM_WRITE) {
+		int more_writers = (sem->writers.task_list.next != sem->writers.task_list.prev);
+		int more_readers = list_empty(&sem->readers.task_list);
+		if (more_writers) {
+			if (more_readers) {
+				sem->rw_count = RWSEM_READ;
+			} else {
+				sem->rw_count = RWSEM_WRITE;
+			}
+		} else {
+			if (!more_readers) {
+				sem->rw_count = 0;
+			} else {
+				sem->rw_count = RWSEM_READ;
+			}
+		}
+		wake_up(&sem->writers);
+	} else {
+		int more_writers = list_empty(&sem->writers.task_list);
+		if (more_writers) {
+			sem->rw_count = RWSEM_WRITE;
+		} else {
+			sem->rw_count = 0;
+		}
+		wake_up(&sem->readers);
+	}
 }
Index: include/asm-parisc/semaphore.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/semaphore.h,v
retrieving revision 1.5
diff -u -p -r1.5 semaphore.h
--- semaphore.h	2000/08/11 23:40:13	1.5
+++ semaphore.h	2001/02/09 00:07:55
@@ -1,29 +1,28 @@
 #ifndef _ASM_PARISC_SEMAPHORE_H
 #define _ASM_PARISC_SEMAPHORE_H
 
-#include <linux/linkage.h>
-
 /*
  * SMP- and interrupt-safe semaphores.
  *
  * (C) Copyright 1996 Linus Torvalds
  *
- * SuperH verison by Niibe Yutaka
+ * PA-RISC version by Matthew Wilcox
  *
  */
 
-/* if you're going to use out-of-line slowpaths, use .section .lock.text,
- * not .text.lock or the -ffunction-sections monster will eat you alive
- */
-
 #include <linux/spinlock.h>
-
+#include <linux/wait.h>
 #include <asm/system.h>
-#include <asm/atomic.h>
 
+/*
+ * The `count' is initialised to the number of people who are allowed to
+ * take the lock.  (Normally we want a mutex, so this is `1').  if
+ * `count' is positive, the lock can be taken.  if it's 0, no-one is
+ * waiting on it.  if it's -1, at least one task is waiting.
+ */
 struct semaphore {
-	atomic_t count;
-	int waking;
+	spinlock_t	sentry;
+	int		count;
 	wait_queue_head_t wait;
 #if WAITQUEUE_DEBUG
 	long __magic;
@@ -38,7 +37,7 @@ struct semaphore {
 #endif
 
 #define __SEMAPHORE_INITIALIZER(name,count) \
-{ ATOMIC_INIT(count), 0, __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \
+{ SPIN_LOCK_UNLOCKED, count, __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \
 	__SEM_DEBUG_INIT(name) }
 
 #define __MUTEX_INITIALIZER(name) \
@@ -52,18 +51,7 @@ struct semaphore {
 
 extern inline void sema_init (struct semaphore *sem, int val)
 {
-/*
- *	*sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val);
- *
- * i'd rather use the more flexible initialization above, but sadly
- * GCC 2.7.2.3 emits a bogus warning. EGCS doesnt. Oh well.
- */
-	atomic_set(&sem->count, val);
-	sem->waking = 0;
-	init_waitqueue_head(&sem->wait);
-#if WAITQUEUE_DEBUG
-	sem->__magic = (long)&sem->__magic;
-#endif
+	*sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val);
 }
 
 static inline void init_MUTEX (struct semaphore *sem)
@@ -76,17 +64,13 @@ static inline void init_MUTEX_LOCKED (st
 	sema_init(sem, 0);
 }
 
-asmlinkage void __down_failed(void /* special register calling convention */);
-asmlinkage int  __down_failed_interruptible(void  /* params in registers */);
-asmlinkage int  __down_failed_trylock(void  /* params in registers */);
-asmlinkage void __up_wakeup(void /* special register calling convention */);
-
 asmlinkage void __down(struct semaphore * sem);
 asmlinkage int  __down_interruptible(struct semaphore * sem);
-asmlinkage int  __down_trylock(struct semaphore * sem);
 asmlinkage void __up(struct semaphore * sem);
 
-extern spinlock_t semaphore_wake_lock;
+/* Sempahores can be `tried' from irq context.  So we have to disable
+ * interrupts while we're messing with the semaphore.  Sorry.
+ */
 
 extern __inline__ void down(struct semaphore * sem)
 {
@@ -94,8 +78,11 @@ extern __inline__ void down(struct semap
 	CHECK_MAGIC(sem->__magic);
 #endif
 
-	if (atomic_dec_return(&sem->count) < 0)
+	spin_lock_irq(&sem->sentry);
+	if (sem->count <= 0)
 		__down(sem);
+	sem->count--;
+	spin_unlock_irq(&sem->sentry);
 }
 
 extern __inline__ int down_interruptible(struct semaphore * sem)
@@ -105,21 +92,32 @@ extern __inline__ int down_interruptible
 	CHECK_MAGIC(sem->__magic);
 #endif
 
-	if (atomic_dec_return(&sem->count) < 0)
+	spin_lock_irq(&sem->sentry);
+	if (sem->count <= 0)
 		ret = __down_interruptible(sem);
+	if (ret == 0)
+		sem->count--;
+	spin_unlock_irq(&sem->sentry);
 	return ret;
 }
 
+/*
+ * down_trylock returns 0 on success, 1 if we failed to get the lock.
+ * May not sleep, but must preserve irq state
+ */
 extern __inline__ int down_trylock(struct semaphore * sem)
 {
-	int ret = 0;
+	int flags, count;
 #if WAITQUEUE_DEBUG
 	CHECK_MAGIC(sem->__magic);
 #endif
 
-	if (atomic_dec_return(&sem->count) < 0)
-		ret = __down_trylock(sem);
-	return ret;
+	spin_lock_irqsave(&sem->sentry, flags);
+	count = sem->count - 1;
+	if (count >= 0)
+		sem->count = count;
+	spin_unlock_irqrestore(&sem->sentry, flags);
+	return (count < 0);
 }
 
 /*
@@ -128,11 +126,14 @@ extern __inline__ int down_trylock(struc
  */
 extern __inline__ void up(struct semaphore * sem)
 {
+	int flags;
 #if WAITQUEUE_DEBUG
 	CHECK_MAGIC(sem->__magic);
 #endif
-	if (atomic_inc_return(&sem->count) <= 0)
+	spin_lock_irqsave(&sem->sentry, flags);
+	if (++sem->count <= 0)
 		__up(sem);
+	spin_unlock_irqrestore(&sem->sentry, flags);
 }
 
 /* rw mutexes (should that be mutices? =) -- throw rw
@@ -146,9 +147,9 @@ extern __inline__ void up(struct semapho
  * (in which case it goes to sleep).
  *
  * The value 0x01000000 supports up to 128 processors and
- * lots of processes.  BIAS must be chosen such that subl'ing
- * BIAS once per CPU will result in the long remaining
- * negative.
+ * lots of processes.  BIAS must be chosen such that subtracting
+ * BIAS three times will result in the value remaining negative,
+ * and it must be at least the number of processes in the system.
  *
  * In terms of fairness, this should result in the lock
  * flopping back and forth between readers and writers
@@ -156,146 +157,134 @@ extern __inline__ void up(struct semapho
  *
  *              -ben
  */
+/* NOTE: There is currently no provision for attempting to acquire
+ * rw_sems from interrupt context.  These routines will require more
+ * work if this is to be allowed.
+ */
+
 struct rw_semaphore {
-        atomic_t                count;
-        volatile unsigned char  write_bias_granted;
-        volatile unsigned char  read_bias_granted;
-        volatile unsigned char  pad1;
-        volatile unsigned char  pad2;
-        wait_queue_head_t       wait;
-        wait_queue_head_t       write_bias_wait;
-#if WAITQUEUE_DEBUG
-        long                    __magic;
-        atomic_t                readers;
-        atomic_t                writers;
+	spinlock_t		sentry;
+	signed int			rw_count;
+	wait_queue_head_t	readers;
+	wait_queue_head_t	writers;
+#if WAITQUEUE_DEBUG
+	long			__magic;
+	volatile int		readers;
+	volatile int		writers;
 #endif
 };
 
 #if WAITQUEUE_DEBUG
-#define __RWSEM_DEBUG_INIT      , ATOMIC_INIT(0), ATOMIC_INIT(0)
+#define __RWSEM_DEBUG_INIT	, 0, 0
 #else
-#define __RWSEM_DEBUG_INIT      /* */
+#define __RWSEM_DEBUG_INIT	/* */
 #endif
 
-#define RW_LOCK_BIAS 0x01000000
+#define RWSEM_MASK	0xC0000000
+#define RWSEM_READ	0x80000000
+#define RWSEM_WRITE	0xC0000000
+#define RWSEM_WRITER	-1
 
 #define __RWSEM_INITIALIZER(name,count) \
-{ ATOMIC_INIT(count), 0, 0, 0, 0, __WAIT_QUEUE_HEAD_INITIALIZER((name).wait), \
-        __WAIT_QUEUE_HEAD_INITIALIZER((name).write_bias_wait) \
-        __SEM_DEBUG_INIT(name) __RWSEM_DEBUG_INIT }
+{ SPIN_LOCK_UNLOCKED, count, __WAIT_QUEUE_HEAD_INITIALIZER((name).writers), \
+	__WAIT_QUEUE_HEAD_INITIALIZER((name).readers) \
+	__SEM_DEBUG_INIT(name) __RWSEM_DEBUG_INIT }
 
 #define __DECLARE_RWSEM_GENERIC(name,count) \
-        struct rw_semaphore name = __RWSEM_INITIALIZER(name,count)
+	struct rw_semaphore name = __RWSEM_INITIALIZER(name,count)
 
-#define DECLARE_RWSEM(name) __DECLARE_RWSEM_GENERIC(name,RW_LOCK_BIAS)
-#define DECLARE_RWSEM_READ_LOCKED(name) __DECLARE_RWSEM_GENERIC(name,RW_LOCK_BIAS-1)
-#define DECLARE_RWSEM_WRITE_LOCKED(name) __DECLARE_RWSEM_GENERIC(name,0)
+#define DECLARE_RWSEM(name) __DECLARE_RWSEM_GENERIC(name,0)
+#define DECLARE_RWSEM_READ_LOCKED(name) __DECLARE_RWSEM_GENERIC(name,1)
+#define DECLARE_RWSEM_WRITE_LOCKED(name) __DECLARE_RWSEM_GENERIC(name,RWSEM_WRITER)
 
 extern inline void init_rwsem(struct rw_semaphore *sem)
 {
-        atomic_set(&sem->count, RW_LOCK_BIAS);
-        sem->read_bias_granted = 0;
-        sem->write_bias_granted = 0;
-        init_waitqueue_head(&sem->wait);
-        init_waitqueue_head(&sem->write_bias_wait);
-#if WAITQUEUE_DEBUG
-        sem->__magic = (long)&sem->__magic;
-        atomic_set(&sem->readers, 0);
-        atomic_set(&sem->writers, 0);
-#endif
+	*sem = (struct rw_semaphore) __RWSEM_INITIALIZER(*sem, 0);
 }
 
-#ifdef FIXME_WILLY_FIXME_FOR_REAL_THIS_TIME
-extern struct rw_semaphore *__build_read_lock(struct rw_semaphore *sem, const char *what);
-extern struct rw_semaphore *__build_write_lock(struct rw_semaphore *sem, const char *what);
-#endif
-
 /* we use FASTCALL convention for the helpers */
-extern struct rw_semaphore *FASTCALL(__down_read_failed(struct rw_semaphore *sem));
-extern struct rw_semaphore *FASTCALL(__down_write_failed(struct rw_semaphore *sem));
-extern struct rw_semaphore *FASTCALL(__rwsem_wake(struct rw_semaphore *sem));
+extern void FASTCALL(down_read_failed(struct rw_semaphore *sem));
+extern void FASTCALL(down_write_failed(struct rw_semaphore *sem));
+extern void FASTCALL(up_read_wakeup(struct rw_semaphore *sem));
+extern void FASTCALL(up_write_wakeup(struct rw_semaphore *sem));
 
 extern inline void down_read(struct rw_semaphore *sem)
 {
+	spin_lock(&sem->sentry);
+
 #if WAITQUEUE_DEBUG
-        if (sem->__magic != (long)&sem->__magic)
-                BUG();
-#endif
-#ifdef FIXME_WILLY_FIXME_FOR_REAL_THIS_TIME
-        __build_read_lock(sem, "__down_read_failed");
+	if (sem->__magic != (long)&sem->__magic)
+		BUG();
 #endif
+
+	if (sem->rw_count < 0)
+		down_read_failed(sem);
+	sem->rw_count++;
+
 #if WAITQUEUE_DEBUG
-        if (sem->write_bias_granted)
-                BUG();
-        if (atomic_read(&sem->writers))
-                BUG();
-        atomic_inc(&sem->readers);
+	if (sem->n_writers)
+		BUG();
+	sem->n_readers++;
 #endif
+
+	spin_unlock(&sem->sentry);
 }
 
 extern inline void down_write(struct rw_semaphore *sem)
 {
+	spin_lock(&sem->sentry);
+
 #if WAITQUEUE_DEBUG
-        if (sem->__magic != (long)&sem->__magic)
-                BUG();
-#endif
-#ifdef FIXME_WILLY_FIXME_FOR_REAL_THIS_TIME
-        __build_write_lock(sem, "__down_write_failed");
+	if (sem->__magic != (long)&sem->__magic)
+		BUG();
 #endif
+
+	if (sem->rw_count != 0)
+		down_write_failed(sem);
+	sem->rw_count += RWSEM_WRITER;
+
 #if WAITQUEUE_DEBUG
-        if (atomic_read(&sem->writers))
-                BUG();
-        if (atomic_read(&sem->readers))
-                BUG();
-        if (sem->read_bias_granted)
-                BUG();
-        if (sem->write_bias_granted)
-                BUG();
-        atomic_inc(&sem->writers);
+	if (sem->n_writers)
+		BUG();
+	if (sem->n_readers)
+		BUG();
+	sem->n_writers++;
 #endif
-}
 
-/* When a reader does a release, the only significant
- * case is when there was a writer waiting, and we've
- * bumped the count to 0: we must wake the writer up.
- */
-extern inline void __up_read(struct rw_semaphore *sem)
-{
-}
-
-/* releasing the writer is easy -- just release it and
- * wake up any sleepers.
- */
-extern inline void __up_write(struct rw_semaphore *sem)
-{
+	spin_unlock(&sem->sentry);
 }
 
 extern inline void up_read(struct rw_semaphore *sem)
 {
+	spin_lock(&sem->sentry);
+
 #if WAITQUEUE_DEBUG
-        if (sem->write_bias_granted)
-                BUG();
-        if (atomic_read(&sem->writers))
-                BUG();
-        atomic_dec(&sem->readers);
+	if (sem->n_writers)
+		BUG();
+	sem->n_readers++;
 #endif
-        __up_read(sem);
+
+	if (sem->rw_count-- < 0)
+		up_read_wakeup(sem);
+	spin_unlock(&sem->sentry);
 }
 
 extern inline void up_write(struct rw_semaphore *sem)
 {
+	spin_lock(&sem->sentry);
+
 #if WAITQUEUE_DEBUG
-        if (sem->read_bias_granted)
-                BUG();
-        if (sem->write_bias_granted)
-                BUG();
-        if (atomic_read(&sem->readers))
-                BUG();
-        if (atomic_read(&sem->writers) != 1)
-                BUG();
-        atomic_dec(&sem->writers);
+	if (sem->n_readers)
+		BUG();
+	if (sem->n_writers != 1)
+		BUG();
+	sem->n_writers--;
 #endif
-        __up_write(sem);
+
+	sem->rw_count -= RWSEM_WRITER;
+	if (sem->rw_count != 0)
+		up_write_wakeup(sem);
+	spin_unlock(&sem->sentry);
 }
 
 #endif /* _ASM_PARISC_SEMAPHORE_H */




From - Thu Nov 08 21:16:27 2018
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From: "M. Grabert" <xam@deathsdoor.com>
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Subject: [parisc-linux] problems compiling STI support
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If I enable STI console support and/of STI fbcon support,
I got the following error:

error: can't find sti.h

well, I don't have any sti.h in the kernel source (current CVS).

Well, hope that helps!

cu max






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Subject: [parisc-linux] ASP Parallel port driver broken on HP9000/730
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Hello there,

As I said before (in another mail), the ASP parallel port driver
is broken: the kernel hangs (lastest CVS, one hour ago).
Everything's fine just without ASP parallel port driver!

Unfortunately I don't know how to redirect the kernel output
to the serial console, so I can give you only some hints...



parport_init_chip: initializing bidirectional mode.

The kernel makes a memory dump from 0000 to 097f,
then:

High Priority Machine Check (HPMC): Code=1 regs=c034a080 (Addr=00000000)

Then follows a dump of the processor registers:

PSW: 00000000000001000000000000001111
r0-3   00000000 c02eb800 c0246328 c1f30788
r4-7   0000002c c1fe5220 f0824800 ffffffdf
r8-11  ffffffff 00000000 0004000e c037d8b0
r12-15 000a5a59 000ff000 f0000124 00000000
r16-19 00000001 50000059 0a000a00 0000000f
r20-23 000000ff 00000041 c1fdc000 0000000f
r24-27 ffffffff f0824800 f0824800 c0342000
r28-31 00000034 00000800 c1fe0980 c012a7dc
sr0-3  00000000 00000000 00000000 00000000
sr4-7  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c026e458 c026e458
 IIR: e840c000     ISR: 00000000   IOR: c0246328
ORIG_R28: 00000000


NB: i typed all this stuff, no copy'n'paste; so perhaps
there are some errors ... 

BTW, no HIL connected, just serial console (but since
the kernel hangs before, i cannot see any output :))).
No PC parport selected, no support for foreign h/w,
no IEEE 1284 transfer modes ...)


hope that helps!


greetings max





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Subject: Re: [parisc-linux] ASP Parallel port driver broken on HP9000/730
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"M. Grabert" wrote:
> Unfortunately I don't know how to redirect the kernel output
> to the serial console, so I can give you only some hints...

Hints on using serial console on 715 (you can search the archive
for lots more 715 hints):

a) disable CONFIG_STI_CONSOLE
b) enabled CONFIG_SERIAL=y
           CONFIG_SERIAL_CONSOLE=y
           CONFIG_SERIAL_GSC=y

c) connect x86 serial to port 1 of 715 and run minicom with 9600 8N1
   serial line settings.
d) Disconnect HIL keyboard and Mouse.
   (*or* hold the TOC button for about 10 seconds while powering on the box.)
   (Either should force the PDC to use serial port 1)

> parport_init_chip: initializing bidirectional mode.
> 
> The kernel makes a memory dump from 0000 to 097f,
> then:
> 
> High Priority Machine Check (HPMC): Code=1 regs=c034a080 (Addr=00000000)
> 
> Then follows a dump of the processor registers:
> 
> PSW: 00000000000001000000000000001111
> r0-3   00000000 c02eb800 c0246328 c1f30788
> r4-7   0000002c c1fe5220 f0824800 ffffffdf
> r8-11  ffffffff 00000000 0004000e c037d8b0
> r12-15 000a5a59 000ff000 f0000124 00000000
> r16-19 00000001 50000059 0a000a00 0000000f
> r20-23 000000ff 00000041 c1fdc000 0000000f
> r24-27 ffffffff f0824800 f0824800 c0342000
> r28-31 00000034 00000800 c1fe0980 c012a7dc
> sr0-3  00000000 00000000 00000000 00000000
> sr4-7  00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: c026e458 c026e458
>  IIR: e840c000     ISR: 00000000   IOR: c0246328
> ORIG_R28: 00000000

IOAQ is the address of the instruction that the CPU
was trying to execute when the HPMC occurred.
IIR is the instruction at IOAQ.
echo 0xe840c000=i | adb   says:
		BV              r0(r2)

GR02 is the most recent subroutine call return addr.
(Typically the caller).

So look up c026e458 and c0246328 in your System.map.
You can at least figure out about where it's crashing.
(Hint: cvs co build-tools and look at a.c)

> NB: i typed all this stuff, no copy'n'paste; so perhaps
> there are some errors ... 
> 
> BTW, no HIL connected, just serial console (but since
> the kernel hangs before, i cannot see any output :))).

Wait. If PDC is printing to the serial console...I'm confused.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Initial setup of the `glibc' in the target root
 file system
Date: Fri, 9 Feb 2001 14:56:37 +1100 (EST)
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To: Christoph Plattner <christoph.plattner@dot.at>
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On Thu, 8 Feb 2001, Christoph Plattner wrote:

> After the glibc builts perfect, I have a problem in setting up the root
[snip]
> with page fault or with "cannot find libc.6.so". Only the root of the
[snip]

"with page fault" is possibly due to the glibc bug I mentioned in
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-February/011686.html

"cannot find libc.so.6" is a different problem, a result of
cross-compiling glibc with --prefix different to final install location.
Let's see if I can explain the problem...

Suppose you want to cross-compile the toolchain and glibc from an
i686-linux system, and you have chosen --target=hppa-linux.  Further
suppose you decide to install to /usr/ on your host x86 system (This 
does work safely, despite various recipes recommending /usr/parisc,
or /opt/parisc).  Now when cross-compiling glibc, you obviously _don't_
want to install glibc on your host to /usr, as the glibc you create is an
hppa-linux binary, which doesn't run very well on x86-linux!  So the
proper install destination for glibc is given by --prefix=/usr/hppa-linux.
This is also the root of directories where your hppa-linux cross-tools
will look first for libraries and system header files etc.  If you chooes
some other prefix (ie. not <compiler prefix>/<compiler target>) then
you'll have problems cross compiling.

However, trying to install the glibc that works for a cross-compiler
tool-chain to your target system, at a different location, fails
miserably because shared libraries specify where to look for their
"interpreter" (dynamic linker).  Your cross-compiled glibc will be looking
for /usr/hppa-linux/lib/ld.so.1, while a native glibc will look for
/lib/ld.so.1.  Also, a cross-compiled dynamic linker knows to look under
/usr/hppa-linux/ for libraries and ld.so.cache.  On the other hand, you
probably want your libraries in their normal locations so that you don't
accidentally use the wrong library.

Of course, it's very useful to be able to install your cross-compiled
glibc to your target :-), and hopefully the above explanation suggests one
way around the problems:
 - Install your glibc to a temp dir on your nfs server
   eg. "make install_root=/var/tmp/install"
 - Move files from /var/tmp/install to /tftpboot/<proper locataion>
   It helps if you know what <proper location> is!  Compile glibc native
   for x86 and install to another temp dir if you don't know.
 - Make relative symbolic links in /tftpboot/.../usr/hppa-linux/lib/ to
   the shared libs you installed to /tftpboot/.../lib/
 - ln -s ../../etc /tftpboot/.../usr/hppa-linux/etc too
 - What else?  Oh yeah, /usr/lib/libc.so and some of the files installed
   to /usr/bin/ are text files, and some have paths to    /usr/hppa-linux.
   Edit them.

It would be nice if you could cross-compile glibc with --prefix=/usr, but
last time I tried this, quite some time ago, it failed because
/usr/include/ was being used for headers.  Maybe there's an easy way
around this.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.













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Subject: Re: [parisc-linux] problems compiling STI support
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On Friday 09 February 2001 02:39, M. Grabert wrote:
> If I enable STI console support and/of STI fbcon support,
> I got the following error:
>
> error: can't find sti.h
> well, I don't have any sti.h in the kernel source (current CVS).

Hi Max,

I fixed that 20 minutes before you wrote this mail.
But please don't try to compile STI framebuffer - it won't work yet.

Greetings,

	Helge.




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Subject: [parisc-linux] minilibc CVS module
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I have the 'minilibc' module checked out of CVS.  It doesn't seem to
have been updated in the last 8 months.  Is this thing dead, or just
resting?  Pining for the fjords, perhaps.

Not that I can even remember why I have it checked out in the first
place ... hmm.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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On Thu, 8 Feb 2001, Grant Grundler wrote:

> Hints on using serial console on 715 (you can search the archive
> for lots more 715 hints):
> 
> a) disable CONFIG_STI_CONSOLE
> b) enabled CONFIG_SERIAL=y
>            CONFIG_SERIAL_CONSOLE=y
>            CONFIG_SERIAL_GSC=y
> 
> c) connect x86 serial to port 1 of 715 and run minicom with 9600 8N1
>    serial line settings.
> d) Disconnect HIL keyboard and Mouse.
>    (*or* hold the TOC button for about 10 seconds while powering on the box.)
>    (Either should force the PDC to use serial port 1)

sorry about the confusing error report.
I'm actually using serial console, with the configuration above;
but the initial kernel messages are not redirected to the serial console.
not until the serial ports are found & initialized ...
... but since these kernel messages are printed before the time the
serial ports are recognized, I can't see them on the terminal, but on the
monitor.
My question was, whether there is a kernel parameter (i can pass to palo),
which redirects ALL kernel messages from the beginning to the serial port
(before they are regognized by the linux kernel). 

> GR02 is the most recent subroutine call return addr.
> (Typically the caller).
> 
> So look up c026e458 and c0246328 in your System.map.
> You can at least figure out about where it's crashing.
> (Hint: cvs co build-tools and look at a.c)

I'll do this tonight ...
 
> > NB: i typed all this stuff, no copy'n'paste; so perhaps
> > there are some errors ... 
> > 
> > BTW, no HIL connected, just serial console (but since
> > the kernel hangs before, i cannot see any output :))).

... on the serial console, hence the serial ports are not initialized,
but i can see the messages on the monitor! therefore I had to type
all the register dump by hand ...

> Wait. If PDC is printing to the serial console...I'm confused.

I hope you're not confused anymore ;)

greetings, max





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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] ASP Parallel port driver broken on HP9000/730
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On Friday 09 February 2001 14:45, M. Grabert wrote:
>
> sorry about the confusing error report.
> I'm actually using serial console, with the configuration above;
> but the initial kernel messages are not redirected to the serial console.
> not until the serial ports are found & initialized ...
> ... but since these kernel messages are printed before the time the
> serial ports are recognized, I can't see them on the terminal, but on the
> monitor.
> My question was, whether there is a kernel parameter (i can pass to palo),
> which redirects ALL kernel messages from the beginning to the serial port
> (before they are regognized by the linux kernel).

on the IPL screen type 

PATH CONSOLE RS232_1
*or*
PATH CONSOLE SERIAL_1

At the next boot PDC will redirect all PDC-messages to the first serial port 
and you will able to boot your PARISC through minicom.

Helge


BTW: Max, your domain doesn't seem to resolve 
	("M. Grabert" <xam@deathsdoor.com>)!
bash-2.04$ nslookup deathsdoor.com
Server:  devserv.devel.redhat.com
*** devserv.devel.redhat.com can't find deathsdoor.com: Non-existent 
host/domain




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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: [parisc-linux] nscd and new glibc on parisc-linux
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I checked in changes to fix the clone system call into our local cvs copy
of glibc. HOWEVER, you should not build a new glibc and install it at
this point, unless you move /usr/sbin/nscd out of the way (and a
"make install" of glibc will put another one in its place, so do the
move after the install).

The problem is that nscd uses pthreads. Before the clone system call
was fixed, pthread_create() failed in a way that was not fatal to
nscd. Now pthread_create() core dumps, because the pthread library
routines currently have hard coded assumptions about which direction
the stack grows. I'll be fixing that in the near future.

If you leave nscd in place you will not be able to log in to your
machine. If you are using an nfs root you can fix this, but it will
be a little more difficult to fix if you are booting off of a local
disk.

John




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Subject: [parisc-linux] pipes
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Would anyone like to hazard a guess as to whether pipes work OK?

The fixincludes problem I'm seeing with devel branch gcc builds looks like
a loss of data in a pipe.  fixincl does a fairly standard trick of opening
a pipe(2) to a fork & exec'd shell, and by putting a little debugging code
in I see some fishy commands in the shell.

Good debug info looks like:

==
case hppa-unknown-linux-gnu in
*-*-sysv4* | \
i?86-*-sysv5* | \
i?86-*-udk* | \
i?86-*-solaris2.[0-4] | \
powerpcle-*-solaris2.[0-4] | \
sparc-*-solaris2.[0-4] )
    echo run ;;
* ) echo skip ;;
esac
==
cd /usr/include
case hppa-unknown-linux-gnu in
*-*-sysv4* | \
i?86-*-sysv5* | \
i?86-*-udk* | \
i?86-*-solaris2.[0-4] | \
powerpcle-*-solaris2.[0-4] | \
sparc-*-solaris2.[0-4] )
    echo run ;;
* ) echo skip ;;
esac

echo
echo ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd

where the first hunk of text between `=='s is wrapped in
`cd /usr/include' .. `echo funky stuff' and plugged into the pipe.  The
hunk of text after the second `==' is what the shell reads from the pipe.
Everything works as expected for a while, and then we get

==
file=sys/stat.h
if ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1
then echo TRUE
else echo FALSE
fi
==
cd /usr/include
file=sys/stat.h
if ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1
then echo TRUE
else echo FALSE
fi
d

Oops, did we just lose 41 chars?

Unfortunately, I'm not sure where the loss happens.  When I tried to
"strace -f -s 256 ...", I ran into

User Fault on Kernel Space pid=319 command='sh'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001011
r0-3     00000000 00076808 0002b4c7 00000001
r4-7     401e8648 00000000 0000008b 0007dda8
r8-11    00000001 00076808 0007f008 00078008
r12-15   00076808 00078f02 00076808 bb000ac8
r16-19   00076808 00063800 ffffffff 401e8648
r20-23   000000af 400f0258 0007e498 00000008
r24-27   00000000 bb000ac8 00000002 00076808
r28-31   00000000 00000000 bb000c00 400f027f
sr0-3    0000035e 0000035c 00000000 0000035e
sr4-7    0000035e 0000035e 0000035e 0000035e

IASQ: 00000000 00000000 IAOQ: 400f027f 400f0283
 IIR: 4ad30048    ISR: 0000035e  IOR: 0007e4bc
ORIG_R28: ffffffff

0x400f0270 <__sigprocmask+24>:  stw r3,-3c(sr0,sp)
0x400f0274 <__sigprocmask+28>:  be,l 100(sr2,r0),%sr0,%r31
0x400f0278 <__sigprocmask+32>:  ldi af,r20
0x400f027c <__sigprocmask+36>:  copy ret0,r3

Tried various kernels I built near the end of January, and one dated
20010201 "Linux version 2.4.0-test10 (jsm@forest)" from Matt Taggart.

Time to sleep on it, I think

Alan





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Andrew Shugg wrote:
> I have the 'minilibc' module checked out of CVS.  It doesn't seem to
> have been updated in the last 8 months.  Is this thing dead, or just
> resting?  Pining for the fjords, perhaps.

No - resting up for a ski vacation. :^O

The minilibc was used to build the first static binaries (eg sash).
sash was the first thing we could show off last year.
Since we've had a real glibc, minilibc has withered.

> Not that I can even remember why I have it checked out in the first
> place ... hmm.

Build your own static realtime, realmode application?
I'm not sure what "embedded" application parisc boxes would be good for...
but I've heard of such thing being done for dedicated NFS servers...

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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"M. Grabert" wrote:
> My question was, whether there is a kernel parameter (i can pass to palo),
> which redirects ALL kernel messages from the beginning to the serial port
> (before they are regognized by the linux kernel). 

No. (I'm being more blunt than Helge).

Read the directions I posted again and try them.

Setting the CONSOLE path (as suggested by Helge) will result in
the same thing. But later you must set the path back to a graphics
head once you (and parisc-linux) are ready for STI/graphical console.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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On Fri, 9 Feb 2001, Helge Deller wrote:

> on the IPL screen type 
> 
> PATH CONSOLE RS232_1
> *or*
> PATH CONSOLE SERIAL_1

thanks alot !!!

> BTW: Max, your domain doesn't seem to resolve 
> 	("M. Grabert" <xam@deathsdoor.com>)!
> bash-2.04$ nslookup deathsdoor.com
> Server:  devserv.devel.redhat.com
> *** devserv.devel.redhat.com can't find deathsdoor.com: Non-existent 
> host/domain

my nslookup says:

Name:   deathsdoor.com
Address: 206.96.221.142


well, deathsdoor.com is a email-forward servive from netforward.com
I'm using it since 1995/96 (about).
Since I'll finish my study in March, I'll lose my email address there,
therefore I use this email address ...

my real address is markus dot grabert at stud dot fh-regensburg dot de
:))) 

geeting max






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Hi all,

I there was discussion about tar locking up on 715 and the consesus was
that it was spinlock related and due to an alignment issue.

Was this fixed?

Is/Was it a kernel or glibc problem?

As far as I can tell, this is causing dpkg to lock up also -
tiki2:/artemis/install/debian-hppa# ps -H
  PID     TTY                 TIME           CMD
  167     ttyS0             00:00:00       rpciod
  102     ttyS0             00:00:37       sh
  307     ttyS0             00:00:02         dpkg
  310     ttyS0             00:00:01           dpkg-deb
  311     ttyS0             00:00:00             dpkg-deb <defunct>
  312     ttyS0             00:00:01             gzip
  313     ttyS0             00:00:01             tar
  340     ttyS0             00:00:04         ps
tiki2:/artemis/install/debian-hppa#

tar on its own also locks up.

thanks,

- Damian
penfold@customware.com.au





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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] parisc64 kernel and ret1 (gr29) setup
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On Wed, 7 Feb 2001, Richard Hirst wrote:

> On Tue, Jan 23, 2001 at 01:45:45PM +0000, Richard Hirst wrote:
> > Presumably r29 needs initialising on every call from entry.S and syscall.S
> > to C code, but I'm not over confident about that, so I thought I'd let
> > others see my diff so far.  Comments?
> 
> So, I committed that diff, and have been looking at what happens
> w.r.t. stack frame setup on interrupts.  All we seem to do is to
> set sp to the top of task_struct (if in a user context), or move
> sp up by a struct pt_regs if in kernel space.  In both cases,
> those values are rounded up (TASK_SZ_ALGN and PT_SZ_ALIGN), so
> there would probably be some space below sp, but should get_stack
> be explicity allocating a stack frame really?

This is a bit interesting.  A called procedure can write into certain
parts of the caller's stack frame, so we should certainly be allocating
space for these areas.

A 64 bit stack frame looks like:

	|----------------------------------|
psp ->	|       Register Spill Area        | variable size
	|----------------------------------|
	|       Local Storage Area         | variable size
	|----------------------------------|
	|      Dynamic Storage Area        | variable size
	|----------------------------------|
	| Outgoing Register Parameter Area | 64 bytes
        | arg word 0                       |
        | arg word 1                       |
        | arg word 2                       |
        | arg word 3                       |
	|----------------------------------|
ap ->	|  Outgoing Stack Parameter Area   | variable size
        | arg word 4                       |
        | .                                |
        | arg word n-1                     |
	|----------------------------------|
	|          Frame Marker            | 16 bytes
	| rp                               |
	| psp                              |
        |----------------------------------|
sp ->

Any of the variable size areas may be zero size.  ap (%r29) points to
first byte of outgoing stack param area, and sp (%r30) points to first
byte of free stack area.  Stack grows up to increasing memory addresses.
Actual arg locations are as shown for 64 bit and smaller args.  The
mapping from args to arg words gets a little tricky with larger argument
sizes.

The areas written by the called function are the frame marker (rp save),
and the outgoing register parameter area.  This means we ought to be
allocating 80 bytes past the end of struct pt_regs, although it's likely
the register parameter area is never written.


32-bit stack frames look like:

	|----------------------------------|
psp ->	|       Register Spill Area        | variable size
	|----------------------------------|
	|       Local Storage Area         | variable size
	|----------------------------------|
	|      Dynamic Storage Area        | variable size
	|----------------------------------|
	|  Outgoing Stack Parameter Area   | variable size
        | arg word n-1                     |
        | .                                |
        | arg word 4                       |
	|----------------------------------|
	| Outgoing Register Parameter Area | 32 bytes
        | arg word 3                       |
        | arg word 2                       |
        | arg word 1                       |
        | arg word 0                       |
	|----------------------------------|
	|          Frame Marker            | 32 bytes
	| External Data Pointer (DP)       |
	| External sr4                     |
	| External/stub RP (RP')           |
	| Current RP                       |
	| Static Link                      |
	| Clean up                         |
	| Calling Stub RP (RP'')           |
	| Previous SP                      |
        |----------------------------------|
sp ->

Again, it is the frame marker and outgoing register param area that may be
written by the called function, so here we should allocate 64 bytes past
the end of struct pt_regs.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.





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On Thu, 8 Feb 2001, Grant Grundler wrote:

> echo 0xe840c000=i | adb   says:
> 		BV              r0(r2)
> 
> GR02 is the most recent subroutine call return addr.
> (Typically the caller).
> 
> So look up c026e458 and c0246328 in your System.map.
> You can at least figure out about where it's crashing.

done that (I also checked that is is the correct System.map),
but there is no entry for c026e458 and c0246328 !!!
Also build a new kernel (and a new System.map), but
the same result :(

> (Hint: cvs co build-tools and look at a.c)

I did not tried this yet ...
 

greetings max






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Subject: Re: [parisc-linux] parisc64 kernel and ret1 (gr29) setup
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Xref: news.gmane.org gmane.linux.ports.parisc:10233

On Sun, Feb 11, 2001 at 11:09:32PM +1100, Alan Modra wrote:
> On Wed, 7 Feb 2001, Richard Hirst wrote:
> 
> > On Tue, Jan 23, 2001 at 01:45:45PM +0000, Richard Hirst wrote:
> > > Presumably r29 needs initialising on every call from entry.S and syscall.S
> > > to C code, but I'm not over confident about that, so I thought I'd let
> > > others see my diff so far.  Comments?
> > 
> > So, I committed that diff, and have been looking at what happens
> > w.r.t. stack frame setup on interrupts.  All we seem to do is to
> > set sp to the top of task_struct (if in a user context), or move
> > sp up by a struct pt_regs if in kernel space.  In both cases,
> > those values are rounded up (TASK_SZ_ALGN and PT_SZ_ALIGN), so
> > there would probably be some space below sp, but should get_stack
> > be explicity allocating a stack frame really?
> 
> This is a bit interesting.  A called procedure can write into certain
> parts of the caller's stack frame, so we should certainly be allocating
> space for these areas.

We now allocate 64 bytes for 32 bit kernels and 128 bytes for 64 bit
kernels.  In fact, (as jsm pointed out to me) the align macro in
arch/parisc/tools/offset.c allowed for a stack frame in its rounding
up already.  It used to always allow only 64 bytes, but I've changed that
to allow 64 or 128 bytes as required.

Richard





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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] tar, spinlocks and 715 and 720
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On Sun, Feb 11, 2001 at 06:50:42PM +1100, penfold@customware.com.au wrote:
> I there was discussion about tar locking up on 715 and the consesus was
> that it was spinlock related and due to an alignment issue.
> 
> Was this fixed?

not entirely, yet.

> Is/Was it a kernel or glibc problem?

glibc.  it's a `pthreads' problem.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] ASP Parallel port driver broken on HP9000/730
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On Sun, Feb 11, 2001 at 09:16:39PM +0100, M. Grabert wrote:
> On Thu, 8 Feb 2001, Grant Grundler wrote:
> 
> > echo 0xe840c000=i | adb   says:
> > 		BV              r0(r2)
> > 
> > GR02 is the most recent subroutine call return addr.
> > (Typically the caller).
> > 
> > So look up c026e458 and c0246328 in your System.map.
> > You can at least figure out about where it's crashing.
> 
> done that (I also checked that is is the correct System.map),
> but there is no entry for c026e458 and c0246328 !!!

no, there wouldn't be.  the addresses in System.map are the start of
each function.  so the address below c026e458 will be the address of
the function which made the call.

Matthew `Give a man a match and you warm him for an hour; dose him in
petrol first and you warm him for the rest of his life'

-- 
Revolutions do not require corporate support.




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On Mon, 12 Feb 2001, Matthew Wilcox wrote:

> > On Thu, 8 Feb 2001, Grant Grundler wrote:
> > 
> > > echo 0xe840c000=i | adb   says:
> > > 		BV              r0(r2)
> > > 
> > > GR02 is the most recent subroutine call return addr.
> > > (Typically the caller).
> > > 
> > > So look up c026e458 and c0246328 in your System.map.
> > > You can at least figure out about where it's crashing.

just a copy'n'paste from my System.map:

c026e44c T _gsc_readb
c026e460 T _gsc_readw
c026e474 T _gsc_readl

therefore c026e458 is in _gsc_readb, and:

c02462c4 t parport_PS2_supported
c02463c8 T parport_gsc_probe_port
c024677c T parport_gsc_write_data

 so c0246328 is in parport_PS2_supported!


greetings max






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Xref: news.gmane.org gmane.linux.ports.parisc:10237

I just committed code that moves PAGE_OFFSET from 0xc0000000 to 0x10000000.
Since the parisc port of Linux uses a separate address space for the kernel,
this does not affect the user address space. In fact, another change I
committed a few days ago makes the full 4Gb (ok, actually 4Gb - 1 Mb)
virtual address space available to a 32 bit process.

For users, this means that parisc linux now supports up to 3.5 Gb of
physical memory. The current design reserves the lower 256 Mb for
mapping space (vmalloc, pcxl dma, temporary flushing aliases, gateway page,
etc). The top 256 Mb are currently set aside for possibly equivalently
mapping the parisc I/O space on a 32 bit kernel. This may not be done,
in which case we can raise the limit on physical memory to 3.75 Gb for
the 32 bit kernel.

Of course, I haven't tested it on any machine that has over 1 Gb, so this
is just theory for now.  Future changes will allow significantly more
physical memory on a 64 bit kernel.

For parisc linux kernel developers, the following changes should be noted:

    1) The LDIL_FIXUP macro is gone! It is no longer necessary,
    since none of the static symbols have the top bit set in their
    address.

    2) It is no longer possible to convert from a physical to virtual
    address (and vice versa) with one assembly instruction.  Another
    register is required to do this operation.  Therefore, the tophys and
    tovirt assembly macro's had to change.  I've provided two versions of
    each one, and each version is implemented using two instructions.  The
    following examples are for the tophys based macros.  The tovirt macros
    are similar:

	a) tophys <virt register>,<phys register>

        This version takes two registers, and they cannot be the same
        register.  This macro might be useful when you still have a use
        for the virtual address, or the register was going to be copied
        anyway.  It also might be the macro to use if you can't afford to
        trash r1 (see below).

	b) tophys_r1 <register>

	This version takes one register (other than r1!). It can
	be used like the old version of tophys, however, this
	version trashes r1. The name is supposed to remind you
	of that side effect.

    3) Note that you may not be able to easily tell kernel adddresses from
    user addresses in register/stack dumps in all cases.  You need to
    check the associated space register to be sure.

    For typically small processes ( < 256 Mb) and machines with < 768 Mb
    of physical memory it still won't be too hard. But the addresses
    will be different than before:

	a) user process text/data/bss variables: No Change

	    These are typically low addresses

	b) user process mapped objects: No Change

	    The default map offset of 0x40000000 hasn't changed

	c) user process stack: Changed

	    Previously user stack addresses were around 0xbb000000,
	    now that will most likely start at 0xfaf00000.

	d) kernel text/data/bss variables: Changed

	    Due to the PAGE_OFFSET change, these have changed
	    from addresses that start at 0xc0100000 to addresses
	    that start at 0x10100000.

	e) kernel stack and other dynamic objects: Changed

	    These can span almost the entire range of kernel
	    virtual memory. They are also affected by the
	    PAGE_OFFSET change.

	f) VMALLOC, pcxl dma mappings, etc.

	    The VMALLOC space is now BELOW PAGE_OFFSET! It is
	    wrong to test addresses against "high_memory" and
	    assume that if they are greater that they must
	    be vmalloc'ed. Note that code that checks against
	    PA(high_memory) might be ok, depending on what
	    is being done. If you need to check if an address
	    is in the VMALLOC space, test against VMALLOC_START
	    and VMALLOC_END. If you need to check if an address
	    is in the normally mapped kernel address space,
	    check against PAGE_OFFSET and high_memory. The
	    mem/kmem driver (drivers/char/mem.c) can be used
	    as an example of how to do this correctly.

Let me know if you have any questions, see any problems, etc.

John Marvin
jsm@fc.hp.com




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From: Greg Ingram <ingram@symsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C100 & Latest CVS Bits
Date: Tue, 13 Feb 2001 12:32:01 -0600 (CST)
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Xref: news.gmane.org gmane.linux.ports.parisc:10238

Howdy,

The latest CVS bits crater on my C100.  The last two messages are:

VFS: Mounted root (ext2 filesystem).
Warning: unable to open an initial console.

(Which is normal so far.)  Then I get a stack dump, a kernel fault and a
register dump.  As I recall, Grant said the stack dump itself isn't
helpful unless it's a kernel built with the default configuration.  I'd be
happy get that output if it would help.

As a side question, is it possible to have the system automatically reboot
after it encounters these errors?

Cheers,

- Greg







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Subject: Re: [parisc-linux] C100 & Latest CVS Bits
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Xref: news.gmane.org gmane.linux.ports.parisc:10239

Greg Ingram wrote:
> As I recall, Grant said the stack dump itself isn't
> helpful unless it's a kernel built with the default configuration.

I can't (or won't) help with stack/register dumps unless they are built
with default config. That's different than saying they aren't helpful.
The problem is the symbols are what's interesting to me and I can't
determine them unless the bits match what's in a source tree I have.

I guess it's time we put together a "PARISC Kernel Debugging HOW-TO
for Dummies". ie how to look up symbols, explain TOC (and HPMC), how
to get/decode TOC/HPMC dumps, etc.

> As a side question, is it possible to have the system automatically reboot
> after it encounters these errors?

It can. There's a global variable someplace that is *disabled* by default.
If someone can just remember the global's name...

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Greg Ingram <ingram@symsys.com>
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All good news!

On Tue, 13 Feb 2001, Grant Grundler wrote:

> Greg Ingram wrote:
> > As I recall, Grant said the stack dump itself isn't
> > helpful unless it's a kernel built with the default configuration.
> 
> I can't (or won't) help with stack/register dumps unless they are built
> with default config. That's different than saying they aren't helpful.
> The problem is the symbols are what's interesting to me and I can't
> determine them unless the bits match what's in a source tree I have.

I understand.  I've rebuilt from clean with the default config and... 
[Gulp!]  I guess another reason to use the default config is to ensure
that I haven't done something rash with my config.  Here's the end of the
session now:

	Starting internet superserver: inetd.
 
	Debian GNU/Linux 2.2 apollos ttyS0
 
	apollos login:  

I'd also made /dev/console -> /dev/ttyS0.  No log to follow.  :)
 
> I guess it's time we put together a "PARISC Kernel Debugging HOW-TO
> for Dummies". ie how to look up symbols, explain TOC (and HPMC), how
> to get/decode TOC/HPMC dumps, etc.

Dummies?!  Ack!  Phfft!  Tyros, neophytes, novices, even newbies.  But
please do.  
 
> > As a side question, is it possible to have the system automatically reboot
> > after it encounters these errors?
> 
> It can. There's a global variable someplace that is *disabled* by default.
> If someone can just remember the global's name...

Anybody?  I have to make that *long* walk through the accounting office
just to power-cycle the beast.  

- Greg







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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] small STI patch
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Hi,

I've just committed a small patch, which saves us to copy a whole struct from 
the STI ROM just to get one value (the ROM size) out of it.

Helge

--- sticon-wmode.c      2001/02/04 21:22:59     1.3
+++ sticon-wmode.c      2001/02/13 20:56:54     1.4
@@ -119,13 +119,9 @@
        if (!(raw && cooked))
                goto out_err;
 
-       /* copy raw rom header & get the real size */
-       sti_rom_copy(address, 0, sizeof(*raw), raw);
-       wmode_sti_dump_rom(raw);
-       size = raw->last_addr;
-       kfree(raw);
+       /* read the ROM size directly from the struct in ROM */
+       size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
 
-       /* now copy raw rom with real size */
        raw = kmalloc(size, GFP_KERNEL);
        if(!raw)
                goto out_err;




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] small STI patch
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On Tue, Feb 13, 2001 at 10:17:05PM +0100, Helge Deller wrote:
> I've just committed a small patch, which saves us to copy a whole struct from 
> the STI ROM just to get one value (the ROM size) out of it.

But we leak a kmalloc'd buffer.  you need to remove the prior kmalloc
assigned to raw.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] small STI patch
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On Tuesday 13 February 2001 22:32, Matthew Wilcox wrote:
> On Tue, Feb 13, 2001 at 10:17:05PM +0100, Helge Deller wrote:
> > I've just committed a small patch, which saves us to copy a whole struct
> > from the STI ROM just to get one value (the ROM size) out of it.
>
> But we leak a kmalloc'd buffer.  you need to remove the prior kmalloc
> assigned to raw.

Yes, you're right.
I've just committed the following patch.

Helge

diff -u -r1.4 sticon-wmode.c
--- sticon-wmode.c      2001/02/13 20:56:54     1.4
+++ sticon-wmode.c      2001/02/13 21:38:18
@@ -110,13 +110,11 @@
 wmode_sti_read_rom(struct sti_struct *sti, unsigned long address, unsigned 
long hpa)
 {
        struct sti_cooked_rom *cooked;
-       struct sti_rom *raw;
+       struct sti_rom *raw = NULL;
        unsigned long size;
 

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In-Reply-To: <Pine.LNX.4.21.0102131358430.14806-100000@maestro.symsys.com>
 "from Greg Ingram at Feb 13, 2001 02:16:58 pm"
X-Mailer: ELM [version 2.4ME+ PL77 (25)]
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Greg Ingram said:
> On Tue, 13 Feb 2001, Grant Grundler wrote:
> > Greg Ingram wrote:
> > > As a side question, is it possible to have the system automatically reboot
> > > after it encounters these errors?
> > 
> > It can. There's a global variable someplace that is *disabled* by default.
> > If someone can just remember the global's name...
> 
> Anybody?  I have to make that *long* walk through the accounting office
> just to power-cycle the beast.  

Does rebooting with sysrq work?  (I've never actually tried it over a
serial console, but I seem to recall that you can send a break, then
"b".)

Actually, will that work, or do you have to turn on sysrq via /proc
after booting?

Oh, wait, it looks like you can pass "panic=1" as a kernel parameter. 
That should have the same effect as "echo 1 > /proc/sys/kernel/panic"
(or adding "kernel.panic = 1" to /etc/sysctl.conf and running "sysctl
-p") on a running system.

Documentation/sysctl/kernel.txt says the following:

    panic:

    The value in this file represents the number of seconds the
    kernel waits before rebooting on a panic. When you use the
    software watchdog, the recommended setting is 60.

The default value is 0, which disables the feature, IIRC.  (This is
from memory, so I could easily be wrong.)

I hope this trip through my faulty memory is helpful...  ;-)

Steve
-- 
steve@silug.org           | Southern Illinois Linux Users Group
(618)398-7320             | See web site for meeting details.
Steven Pritchard          | http://www.silug.org/




From - Thu Nov 08 21:16:29 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] byte-mode STI sync-up with word-mode STI
Date: Wed, 14 Feb 2001 00:25:36 +0100
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Hi,

I've just checked in a large patch (see attachment), which mostly syncs 
byte-mode STI up with word-mode STI.
You should note, that I can't currently test any of theese changes, since I 
don't have such a machine. If your machine has byte-mode STI ROM and you test 
this code, please send me some feedback.

The other parts of this patch just remove an unused parameter from 
sti_rom_copy() and fixes a compiler-warning in stifb.c.

btw, stifb will still not work :-(

Greetings,

	Helge

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--------------Boundary-00=_OEYPOZ9VOG491GDHLIGZ--




From - Thu Nov 08 21:16:29 2018
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X-Mozilla-Keys:                                                                                 
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] building a devel branch gcc
Date: Wed, 14 Feb 2001 12:00:08 +0000
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To: parisc-linux@lists.parisc-linux.org
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Xref: news.gmane.org gmane.linux.ports.parisc:10246

Hi,
  I recently built a devel branch gcc that was capable of building
working 64 bit kernels.  I'm posting the scripts I used in the hope
that they might be useful.  They are heavily based on info from Alan
Modra.

These scripts probably don't do exactly what you want, but should
be a useful starting point.  More likely, you want to build
x86 to parisc32 and parisc64 cross-compilers.  Hoepfully Matt
will do a new xc package when he gets back in a few days.

I checked out binutils, glibc, linux, and gcc -r devel on x86, and
used Matts latest xc to build a devel gcc x86 to parisc32 xc, and
used that to build a native parisc gcc.  I then copied
that on to my A500, and used it to build a parisc32 to parisc64
gcc cross-compiler.  That cross-compiler was then used to build a
64 bit kernel.  The kernel was tested by booting it on the A500
and then rebuilding the kernel.

The A500 was running Matts latest nfsroot tarball, with bits
(such as glibc) upgraded to ones in the new-debs dir on pehc.

So, the script to run x86 to build the native parisc32 compiler:

========================== cut =================================
#!/bin/sh
# From Alan Modra, 12th Feb 2001
# parameterised by Richard Hirst

export PATH=/bin:/usr/bin

BUILDDIR=/mnt/parisc/alan
BINUTILSSRC=/mnt/parisc/xc/source/binutils
GCCSRC=/mnt/parisc/xc/source/gcc
GLIBCSRC=/mnt/parisc/xc/source/glibc
PARISCLINUXSRC=/mnt/parisc/xc/source/linux
TMPINSTALLDIR=/mnt/parisc/alan-install

rm -rf $TMPINSTALLDIR
rm -rf $BUILDDIR
mkdir $BUILDDIR
cd $BUILDDIR
mkdir build
cd build
mkdir bin
echo build latest cross binutils, `date`
cd bin
$BINUTILSSRC/configure --host=i686-linux --prefix=/usr \
--target=hppa-linux --enable-targets=hppa64-linux --disable-nls
make
echo dont forget those links
echo Now su, make install, and exit, exit
bash
cd ..
echo build latest cross compiler, `date`
mkdir devel
cd devel
$GCCSRC/configure --host=i686-linux --target=hppa-linux \
--prefix=/usr --enable-shared --disable-nls --enable-languages=c
make
echo Now su, make install, and exit, exit
bash
cd ..
echo build glibc, assumes linux includes available, `date`
mkdir glibc
cd glibc
$GLIBCSRC/configure --prefix=/usr/hppa-linux --build=i686-linux \
--host=hppa-linux --target=hppa-linux \
--with-headers=$PARISCLINUXSRC/include --disable-profile \
--without-cvs --enable-add-ons
make
echo Now su, make install, and exit, exit
echo You also want to do something like (from memory):
echo     cd /usr/hppa-linuc/include
echo     ln -s $PARISCLINUXSRC/include/asm .
echo     ln -s $PARISCLINUXSRC/include/linux .
bash
cd ..
echo cross compile native gcc, `date`
mkdir xc
cd xc
$GCCSRC/configure --build=i686-linux --host=hppa-linux \
--target=hppa-linux --prefix=/usr --disable-shared --disable-nls \
--enable-languages=c
make
make prefix=$TMPINSTALLDIR install
echo Done, `date`

# copy stuff from $TMPINSTALLDIR to /tftpboot
# then hop across to do a bootstrap natively.

========================== cut =================================


and now the script run on the A500 to produce the 32 to 64 bit
xc.  The make palo at the end fails in palo, because it tries
to use the hppa64-linux- tools.  hack the palo Makefiles, or
move your vmlinux to x64 to run palo on it.


========================== cut =================================
#!/bin/sh

echo ">>> starting, `date`"

# Update and rebuild parisc xc, etc.

TOP=/build/xc
MACH=hppa-linux
DEST=$TOP/parisc64
PATH=$TOP/parisc64/bin:/bin:/usr/bin

# cvs update source

if false; then
cd $TOP/source
cd binutils
cvs update .
cd ../glibc
cvs update .
cd ../gcc
cvs update -r devel .
cd ../linux
cvs update .
cd ../palo
cvs update .
fi

# clean binary tree

cd $TOP
rm -rf parisc64
mkdir parisc64

# clean build tree

cd $TOP
rm -rf build-64
mkdir build-64

# configure and build binutils

echo ">>> configure and build binutils, `date`"
cd $TOP/build-64 && rm -rf binutils && mkdir binutils && cd binutils
$TOP/source/binutils/configure --host=$MACH --prefix=$DEST \
		--disable-nls hppa64-linux
make
make install

# configure and partially build gcc

echo ">>> configure and partially build gcc, `date`"
cd $TOP/build-64 && rm -rf gcc && mkdir gcc && cd gcc
$TOP/source/gcc/configure --host=$MACH --prefix=$DEST \
		--target=hppa64-linux --enable-shared \
		--disable-nls --enable-languages=c
rm -r zlib hppa64-linux
make
make install

# clean palo

echo ">>> cleaning palo build tree, `date`"
cd $TOP/source/palo
make clean

# configure the kernel

echo ">>> configure the kernel, `date`"
cd $TOP/source/linux
make distclean
make oldconfig
make dep

# build the kernel

echo ">>> build the kernel, `date`"
cd $TOP/source/linux
make clean
make palo

# done!!!

echo ">>> done, `date`"

cd $TOP
========================== cut =================================





From - Thu Nov 08 21:16:29 2018
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X-Mozilla-Keys:                                                                                 
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From: Greg Ingram <ingram@symsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Auto-rebooting (was Re: [parisc-linux] C100 & Latest CVS Bits)
Date: Wed, 14 Feb 2001 10:17:56 -0600 (CST)
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Cc: parisc-linux@parisc-linux.org
To: Steven Pritchard <steve@silug.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:10247

On Tue, 13 Feb 2001, Steven Pritchard wrote:

> Does rebooting with sysrq work?  

Er, as in on the keyboard?  It's not even plugged in.  I haven't gotten a
monitor to work with my C100 so I've only used the serial console and
telnet.

> (I've never actually tried it over a serial console, but I seem to
> recall that you can send a break, then "b".)

My terminal program is cu on a Sun SparcStation 2.  Sending a break with
'~#' and '~%break' with and without a trailing 'b' don't have any effect.

> Actually, will that work, or do you have to turn on sysrq via /proc
> after booting?
> 
> Oh, wait, it looks like you can pass "panic=1" as a kernel parameter. 
> That should have the same effect as "echo 1 > /proc/sys/kernel/panic"
> (or adding "kernel.panic = 1" to /etc/sysctl.conf and running "sysctl
> -p") on a running system.

I'll go ahead and append this option, but I think some of the times the
kernel is dead.

- Greg






From - Thu Nov 08 21:16:29 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ASP Parallel port driver broken on HP9000/730
Date: Wed, 14 Feb 2001 16:49:25 +0000
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To: Helge Deller <deller@gmx.de>, "M. Grabert" <xam@deathsdoor.com>
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I can reproduce this on a 715/75.  When it crashes I get:

  ASP version 1 at 0xf0800000 found.
  LED (ASP-style) display at f0800020 registered
  Found HIL at 0xf0821000, IRQ 94
  HIL: keyboard found at id 3
  parport_init_chip: initialize bidirectional-mode.
  Dumping Stack from c5ff0000 to c5ff0980:


IAOQ = _gsc_readb + 0x0c
r2 = parport_PS2_supported + 0x64
r26 = 0xf0824800

r26 corresponds to

  Scorpio Sr. Core Centronics (10) at 0xf0824000, versions 0x19, 0x0, 0x74, 0x0, 0x0


>From drivers/parport/parport_gsc.c:

        port = ((unsigned long) d->hpa) + PARPORT_GSC_OFFSET;

        /* 
            some older machines with ASP-chip don't support the enhanced parport modes 
        */
        if (!pdc_add_valid( (void *)(port+4))) {
            /* Initialize bidirectional-mode (0x10) & data-tranfer-mode #1 (0x20) */
            printk("%s: initialize bidirectional-mode.\n", __FUNCTION__);
            parport_writeb ( (0x10 + 0x20), port + 4);
        } else {
            printk("%s: enhanced parport-modes not supported.\n", __FUNCTION__);
        }

So, I guess it shouldn't have tried to initialise bidirectional-mode
on my old 715/75 with ASP.  If I force that 'if' to fail, then on reboot
I get:

  ASP version 1 at 0xf0800000 found.
  LED (ASP-style) display at f0800020 registered
  Found HIL at 0xf0821000, IRQ 94
  HIL: keyboard found at id 3
  parport_init_chip: enhanced parport-modes not supported.
  parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
  Found i82596 at 0xf0826000, IRQ 87

And the machine boots ok.  I added debug just to check, (port+4) is
0xf0824804.  So is pdc_add_valid() broken, or is that not the right
address to be testing?

Oh, and a simple 'ls / > /dev/lp0' worked too.

Richard





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<xam@deathsdoor.com>: host Mail.deathsdoor.com[206.96.221.110] said: 550 5.1.1
    <xam@deathsdoor.com>... User unknown

Richard




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From: "Florent Guiliani" <fguiliani@perinfo.com>
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Subject: [parisc-linux] Alpha CD 0.5 on HP9000 E25
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To: "Ppalinux (E-mail)" <parisc-linux@lists.parisc-linux.org>
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     Hi,

When I'm booting with Alpha cd 0.5 (kernel 2.4.0-test6) on an HP9000 model
E25,
the machine stop after printing "Lasi version 0 at 0xf0100000 found."

Any Ideas ?

Thx,





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Those of you lucky to have >= 2G RAM may have had problems with palo
in the last week or so -- now fixed.  I also refreshed the palo Debian
package because it's possible that this palo is required
to boot newer kernels now that they're located at a different address.

	-P




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Remove the token GLIBC_2.2 from the file /var/lib/dpkg/info/libc6.shlibs

Thanks to bdale for figuring this one out.

	-P




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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] ASP Parallel port driver broken on HP9000/730
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On Wednesday 14 February 2001 17:49, Richard Hirst wrote:
> I can reproduce this on a 715/75.  When it crashes I get:
>
>   ASP version 1 at 0xf0800000 found.
>   LED (ASP-style) display at f0800020 registered
>   Found HIL at 0xf0821000, IRQ 94
>   HIL: keyboard found at id 3
>   parport_init_chip: initialize bidirectional-mode.
>   Dumping Stack from c5ff0000 to c5ff0980:
>
>
> IAOQ = _gsc_readb + 0x0c
> r2 = parport_PS2_supported + 0x64
> r26 = 0xf0824800
>
> r26 corresponds to
>
>   Scorpio Sr. Core Centronics (10) at 0xf0824000, versions 0x19, 0x0, 0x74,
> 0x0, 0x0
>
>
> From drivers/parport/parport_gsc.c:
>
>         port = ((unsigned long) d->hpa) + PARPORT_GSC_OFFSET;
>
>         /*
>             some older machines with ASP-chip don't support the enhanced
> parport modes */
>         if (!pdc_add_valid( (void *)(port+4))) {
>             /* Initialize bidirectional-mode (0x10) & data-tranfer-mode #1
> (0x20) */ printk("%s: initialize bidirectional-mode.\n", __FUNCTION__);
> parport_writeb ( (0x10 + 0x20), port + 4);
>         } else {
>             printk("%s: enhanced parport-modes not supported.\n",
> __FUNCTION__); }
>
> So, I guess it shouldn't have tried to initialise bidirectional-mode
> on my old 715/75 with ASP.  If I force that 'if' to fail, then on reboot
> I get:
>
>   ASP version 1 at 0xf0800000 found.
>   LED (ASP-style) display at f0800020 registered
>   Found HIL at 0xf0821000, IRQ 94
>   HIL: keyboard found at id 3
>   parport_init_chip: enhanced parport-modes not supported.
>   parport0: PC-style at 0xf0824800, irq 88 [PCSPP]

On my 715/64 I get with bidirectional mode enabled:
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
and this (TRISTATE) is why I wanted to enable this mode. 

> And the machine boots ok.  I added debug just to check, (port+4) is
> 0xf0824804.  So is pdc_add_valid() broken, or is that not the right
> address to be testing?

I'm still sure, that this is the correct address to test, but maybe we should 
just disable the initialisation of bidirectional mode for machines which
- have an ASP chip, or
- have their parport-chip at address 0xf0824800 (which is the only region 
where the ASP has it's parport), or
- on machines, where "parisc_get_cpu_type(cpu_data[0]) < pcxt_"  (from 
hardware.h and processor.h) [but I'm not sure if pcxt_ is correct. You'll 
need to verify]

This are just some possible solutions to work around the problem for now, but 
I'm sure there may be some others too.

> Oh, and a simple 'ls / > /dev/lp0' worked too.
Great.

> Richard

Greetings,

	Helge




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On Thu, Feb 15, 2001 at 01:01:35AM +0100, Helge Deller wrote:
> I'm still sure, that this is the correct address to test, but maybe we should 
> just disable the initialisation of bidirectional mode for machines which
> - have an ASP chip, or
> - have their parport-chip at address 0xf0824800 (which is the only region 
> where the ASP has it's parport), or
> - on machines, where "parisc_get_cpu_type(cpu_data[0]) < pcxt_"  (from 
> hardware.h and processor.h) [but I'm not sure if pcxt_ is correct. You'll 
> need to verify]

That parisc_get_cpu_type() bit isn't quite right, how about:

diff -u -r1.7 parport_gsc.c
--- parport_gsc.c       2001/01/25 00:01:32     1.7
+++ parport_gsc.c       2001/02/15 09:42:08
@@ -482,7 +482,7 @@
        /* 
            some older machines with ASP-chip don't support the enhanced parport modes 
        */
-       if (!pdc_add_valid( (void *)(port+4))) {
+       if (boot_cpu_data.cpu_type > pcxt && !pdc_add_valid( (void *)(port+4))) {
            /* Initialize bidirectional-mode (0x10) & data-tranfer-mode #1 (0x20) */
            printk("%s: initialize bidirectional-mode.\n", __FUNCTION__);
            parport_writeb ( (0x10 + 0x20), port + 4);


Works on my 715/75, where boot_cpu_data.cpu_type = 2 = pcxt.

Richard





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Subject: Re: [parisc-linux] pipes
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Is this still a problem?

On Sat, Feb 10, 2001 at 02:29:50AM +1100, Alan Modra wrote:
> Would anyone like to hazard a guess as to whether pipes work OK?
> 
> The fixincludes problem I'm seeing with devel branch gcc builds looks like
> a loss of data in a pipe.  fixincl does a fairly standard trick of opening
> a pipe(2) to a fork & exec'd shell, and by putting a little debugging code
> in I see some fishy commands in the shell.
> 
> Good debug info looks like:
> 
> ==
> case hppa-unknown-linux-gnu in
> *-*-sysv4* | \
> i?86-*-sysv5* | \
> i?86-*-udk* | \
> i?86-*-solaris2.[0-4] | \
> powerpcle-*-solaris2.[0-4] | \
> sparc-*-solaris2.[0-4] )
>     echo run ;;
> * ) echo skip ;;
> esac
> ==
> cd /usr/include
> case hppa-unknown-linux-gnu in
> *-*-sysv4* | \
> i?86-*-sysv5* | \
> i?86-*-udk* | \
> i?86-*-solaris2.[0-4] | \
> powerpcle-*-solaris2.[0-4] | \
> sparc-*-solaris2.[0-4] )
>     echo run ;;
> * ) echo skip ;;
> esac
> 
> echo
> echo ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd
> 
> where the first hunk of text between `=='s is wrapped in
> `cd /usr/include' .. `echo funky stuff' and plugged into the pipe.  The
> hunk of text after the second `==' is what the shell reads from the pipe.
> Everything works as expected for a while, and then we get
> 
> ==
> file=sys/stat.h
> if ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1
> then echo TRUE
> else echo FALSE
> fi
> ==
> cd /usr/include
> file=sys/stat.h
> if ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1
> then echo TRUE
> else echo FALSE
> fi
> d
> 
> Oops, did we just lose 41 chars?

Interesting that the loss is from the start of the wrapper text.  Is
the wrapping done in a local buffer and the whole lot written as one
operation to the pipe?  Or is it three seperate writes?

> Unfortunately, I'm not sure where the loss happens.  When I tried to
> "strace -f -s 256 ...", I ran into

Yes, strace -f doesn't seem to work.  I plan to look at that rsn.

Richard





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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ASP Parallel port driver broken on HP9000/730
Date: Thu, 15 Feb 2001 22:58:50 +0100
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References: <20010212155919.B7969@parcelfarce.linux.theplanet.co.uk> <01021500595803.07438@P100.helgenet.de> <20010215095454.X1374@linuxcare.com>
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To: Richard Hirst <rhirst@linuxcare.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:10256

On Thursday 15 February 2001 10:54, Richard Hirst wrote:
> On Thu, Feb 15, 2001 at 01:01:35AM +0100, Helge Deller wrote:
> > I'm still sure, that this is the correct address to test, but maybe we
> > should just disable the initialisation of bidirectional mode for machines
> > which - have an ASP chip, or
> > - have their parport-chip at address 0xf0824800 (which is the only region
> > where the ASP has it's parport), or
> > - on machines, where "parisc_get_cpu_type(cpu_data[0]) < pcxt_"  (from
> > hardware.h and processor.h) [but I'm not sure if pcxt_ is correct. You'll
> > need to verify]
>
> That parisc_get_cpu_type() bit isn't quite right, how about:
>
> diff -u -r1.7 parport_gsc.c
> --- parport_gsc.c       2001/01/25 00:01:32     1.7
> +++ parport_gsc.c       2001/02/15 09:42:08
> @@ -482,7 +482,7 @@
>         /*
>             some older machines with ASP-chip don't support the enhanced
> parport modes */
> -       if (!pdc_add_valid( (void *)(port+4))) {
> +       if (boot_cpu_data.cpu_type > pcxt && !pdc_add_valid( (void
> *)(port+4))) { /* Initialize bidirectional-mode (0x10) & data-tranfer-mode
> #1 (0x20) */ printk("%s: initialize bidirectional-mode.\n", __FUNCTION__);
> parport_writeb ( (0x10 + 0x20), port + 4);

Looks good. 
Could you commit ?

> Works on my 715/75, where boot_cpu_data.cpu_type = 2 = pcxt.
> Richard

Greetings,

	Helge




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] db2 build failed
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To: Bdale Garbee <bdale@gag.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:10257

Bdale Garbee writes...

> On the same J, building the Debian db-2.7.7 "db2" libraries fails after 
> building the "important" pieces with the following:
> 
> gcc -g3 -pg  -Ibuild_unix -Iinclude -fPIC -Wall -pipe -D_REENTRANT  -c -o btr
> eec
> cc1: warning: PIC code generation is not compatible with profiling
> 
> btree/bt_compare.c: In function `__bam_cmp':
> btree/bt_compare.c:137: Internal compiler error in output_90, at insn-output.
> c:4

Alan Modra just mentioned that profiling is broken. He is working on a fix.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






From - Thu Nov 08 21:16:31 2018
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From: Xavier Debacker <xavier.debacker@esiee.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] basic sti cursor patch
Date: Thu, 15 Feb 2001 23:44:36 +0100
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To: Helge Deller <deller@gmx.de>
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Il s'agit d'un message multivolet au format MIME.
--------------D691CC0C99CB3804EC0D4D0C
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi Helge,

Here is a patch to get the cursor working on STI..
Of course it's not perfect, but already quite useful as is.
As you can see, this basic cursor is the character on the screen,
with some color attribute (black fg, white bg).

Now we can use vi & emacs, knowing where we are :-)

Xavier.
ESIEE Team.
http://www.esiee.fr/puffin

--------------D691CC0C99CB3804EC0D4D0C
Content-Type: text/plain; charset=us-ascii;
 name="cursor.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="cursor.patch"

diff -rNu linux-cvs/drivers/video/sti/sticon.c linux-cursor/drivers/video/sti/sticon.c
--- linux-cvs/drivers/video/sti/sticon.c	Fri Feb  9 02:42:28 2001
+++ linux-cursor/drivers/video/sti/sticon.c	Thu Feb 15 23:27:53 2001
@@ -94,7 +94,26 @@
 
 static void sticon_cursor(struct vc_data *conp, int mode)
 {
-}
+	unsigned short car1;
+	car1 = conp->vc_screenbuf[conp->vc_x+conp->vc_y*conp->vc_cols];
+	switch (mode) {
+		case CM_ERASE:
+			sti_putc(&default_sti,car1,conp->vc_y,conp->vc_x);
+			break;
+		case CM_MOVE:
+		case CM_DRAW:
+			switch (conp->vc_cursor_type & 0x0f) {
+				case CUR_UNDERLINE:
+				case CUR_LOWER_THIRD:
+				case CUR_LOWER_HALF:
+				case CUR_TWO_THIRDS: 
+				case CUR_BLOCK: 
+					sti_putc(&default_sti,(car1&255)+(0<<8)+(7<<11),conp->vc_y,conp->vc_x);
+					break;
+			}
+			break;
+	}
+}       
 
 static int sticon_scroll(struct vc_data *conp, int t, int b, int dir,
 			int count)

--------------D691CC0C99CB3804EC0D4D0C--





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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: basic sti cursor patch
Date: Fri, 16 Feb 2001 00:07:26 +0100
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On Thursday 15 February 2001 23:44, Xavier Debacker wrote:
> Hi Helge,
>
> Here is a patch to get the cursor working on STI..
> Of course it's not perfect, but already quite useful as is.
> As you can see, this basic cursor is the character on the screen,
> with some color attribute (black fg, white bg).
>
> Now we can use vi & emacs, knowing where we are :-)
>
> Xavier.
> ESIEE Team.
> http://www.esiee.fr/puffin

Xavier, thanks a lot for your patch.
I'll check it in into CVS in a few minutes.

Helge.




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From: Kevin Read <obsidian@panokratie.de>
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Subject: [parisc-linux] Test on 705
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Hi folks,

first a little praise: It only took me 2 hours to get up and running and
starting to build me own kernel with palinux! I like your informative
homepage and FAQs! Keep it up!

I booted it up on my 705 (Flounder), further below is the output I got.

It seems it can't get consistent with the memory my ether and SCSI
controller use, and its muttering about DMA too. It didn't find any SCSI
devices and I couldn't find any packets from the box on the net.

I'd be glad to wade the code (I'm no kernel guru by a long way though ;)
or try patches and such!

cu,

		Kevin

-------

Hard booted.
palo ipl kread@kiste Don Feb 15 23:46:37 MET 2001
0/vmlinux 2322502 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=10.10.10.2 console=ttyS0'
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100118 first 00100000 n 5
Segment 0 load 00100000 size 1311220 mediaptr 0x1000
Segment 1 load 00242000 size 173144 mediaptr 0x142000
Segment 2 load 00270000 size 197940 mediaptr 0x16d000
Segment 3 load 002a4000 size 8192 mediaptr 0x19e000
Segment 4 load 002cfd08 size 64960 mediaptr 0x1a0d08
branching to kernel entry point 0x00100118
PDC Console Initialized
The 32-bit Kernel has started...
FP[0] enabled: Rev 3 Model 0
Free memory starts at: 0x102e0000
start_parisc(0x64d24,0x64d24,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=10.10.10.2 console=ttyS0'
PALO initrd 0-0
model   00003020 00000481 00000000 00000000 77d23d72 ffffffff 00000004 0000000d 00000000
vers    00000003
CPUID   vers 0 rev 0
model   9000/705
Searching for devices in PDC firmware... processor hpa 0xfffbe000
 an older box...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0, 0x77, 0x0, 0x0
2. Flounder Core BA (11) at 0xf082f000, versions 0x8, 0x0, 0x70, 0x0, 0x0
3. Flounder Core SCSI (10) at 0xf0825000, versions 0x8, 0x0, 0x71, 0x0, 0x0
4. Flounder Core LAN (802.3) (10) at 0xf0826000, versions 0x8, 0x0, 0x72, 0x0, 0x0
5. Flounder Core HIL (10) at 0xf0821000, versions 0x8, 0x0, 0x73, 0x0, 0x0
6. Flounder Core RS-232 (10) at 0xf0823000, versions 0x8, 0x0, 0x75, 0x0, 0x0
7. Flounder Core RS-232 (10) at 0xf0822000, versions 0x8, 0x0, 0x75, 0x0, 0x0
8. Flounder Core Centronics (10) at 0xf0824000, versions 0x8, 0x0, 0x74, 0x0, 0x0
9. Flounder Audio (10) at 0xf1000000, versions 0x8, 0x0, 0x7a, 0x0, 0x0
10. Flounder (705) (0) at 0xfffbe000, versions 0x302, 0x0, 0x4, 0x0, 0x81
11. Flounder (1) at 0xfffbf000, versions 0x18, 0x0, 0x9, 0x0, 0x0
That's a total of 11 devices.
CPU(s): 1 x PA7000 (PCX-S) at 35.000000 MHz
Linux version 2.4.0 (kread@kiste) (gcc version 2.96 20000925 (experimental)) #3 Don Feb 15 23:49:59 MET 2001
free_bootmem(0x2e0600, 0x2d1fa00)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 12288
zone(0): 6144 pages.
zone(1): 6144 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=10.10.10.2 console=ttyS0
Calibrating delay loop... 34.71 BogoMIPS
Memory: 45340k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
LED (ASP-style) display at f0800020 registered
Found HIL at 0xf0821000, IRQ 94
HIL: timed out, assuming no keyboard present.
Warning : device (10, 0x8, 0x0, 0x73, 0x0) NOT claimed by HIL 712, 715 or similiar
Found i82596 at 0xf0826000, IRQ 87
early initialization of device eth0 is deferred
superio: Probe
Could not find Superio IDE !
Could not find Superio USB!
Bah!
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 27 9A C9 IRQ 87.
82596.c $Revision: 1.15 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
SCSI subsystem driver Revision: 1.00
sim700: Couldn't get consistent shared memory
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
Post test1, istat 05, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: WARNING: target data areas are not dma coherent!
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
scsi0: Unable to abort command for target 0
scsi0: Unable to send Bus Device Reset for target 0
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
scsi0: Unable to abort command for target 1
scsi0: Unable to send Bus Device Reset for target 1
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
scsi0: Unable to abort command for target 2
scsi0: Unable to send Bus Device Reset for target 2
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
scsi0: Unable to abort command for target 3
scsi0: Unable to send Bus Device Reset for target 3
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
scsi0: Unable to abort command for target 4
scsi0: Unable to send Bus Device Reset for target 4
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
scsi0: Unable to abort command for target 5
scsi0: Unable to send Bus Device Reset for target 5
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
scsi0: Unable to abort command for target 6
scsi0: Unable to send Bus Device Reset for target 6
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 4096)
Sending BOOTP requests............. timed out!
IP-Config: Auto-configuration of network failed.
Trying to free nonexistent resource <f0826000-f082600b>
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 10.10.10.2
RPC: sendmsg returned error 229
portmap: RPC call returned error 229
Root-NFS: Unable to get nfsd port number from server, using default
Looking up port of RPC 100005/2 on 10.10.10.2
RPC: sendmsg returned error 229
portmap: RPC call returned error 229
Root-NFS: Unable to get mountd port number from server, using default
RPC: sendmsg returned error 229
mount: RPC call returned error 229
Root-NFS: Server returned error -229 while mounting /tftpboot/(none)
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "nfs" or 02:00
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on 02:00







From - Thu Nov 08 21:16:31 2018
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From: Chelsea Lewis <support@seamem.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Link-Exchange Request - Check out your link on our site!
Date: Thu, 15 Feb 2001 15:19:37 -0800
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Attn: Webmaster

Hi, my name is Chelsea Lewis and I am a representative of 1st-Memory Warehouse (http://www.1st-memorywhse.com/) in Redmond,WA. I sent you an email requesting a link-exchange. Your website, www.parisc-linux.org, has a link located at: http://www.1st-memorywhse.com/links/themeindex.html ,under the Linux category. If you would like to trade links, please email me the url of the link to our site and make sure that your site's description and and category on our site is suitable.

If you decide to trade links, I will move your site to the TOP of its links page so that it is very easy to find in our directory. 


Cordially Yours:

Chelsea Athena Lewis
1st-Memory Warehouse

http://www.1st-memorywhse.com

Our description should be: 1st-Memory Warehouse - High Quality, Low-Cost Memory Modules for Macintosh and PC. 

..





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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] Test on 705
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Hi Kevin,

	It seems like you want to boot with the file system via nfs.

This is waht that means:

mount: RPC call returned error 229
Root-NFS: Server returned error -229 while mounting /tftpboot/(none)
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "nfs" or 02:00
Please append a correct "root=" boot option

If it is not what you want, please refer to the PALO Readme or to the
official website PALO How-To

Good Luck, Thomas

ESIEE Team
Visit http://www.esiee.fr/puffin




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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] db2 build failed
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On Thu, 15 Feb 2001, Matt Taggart wrote:

> Alan Modra just mentioned that profiling is broken. He is working on a fix.

And, amazingly, he's just committed a fix.  :-)

Err, "-r devel" branch only, at the moment.  I'm about to move all the
devel stuff down to our mainline.

Alan
-- 
Linuxcare.  Support for the Revolution.





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Xref: news.gmane.org gmane.linux.ports.parisc:10264

Alan Modra writes...

> On Thu, 15 Feb 2001, Matt Taggart wrote:
> 
> > Alan Modra just mentioned that profiling is broken. He is working on a fix.
> 
> And, amazingly, he's just committed a fix.  :-)

Of course right after I finished building a new xc based on the devel branch :(
I am rebuilding now and will post shortly.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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On Thu, 15 Feb 2001, Matt Taggart wrote:

> > And, amazingly, he's just committed a fix.  :-)
> 
> Of course right after I finished building a new xc based on the devel branch :(
> I am rebuilding now and will post shortly.

Sorry.  I thought the fix would take me longer. :)

Note that -p is still not compatible with -fpic (and that means -p is not
OK for hppa64 at all, because there you always get PIC).  I'm not sure of
all the reasons why -p and -fpic are incompatible, but one is to do with
the way the prologue code generates a symbol ref.  _That_ problem will
still generate compiler crashes, but you do get a warning.

Err, I just looked at our glibc support for profiling, gmon/mcount.c, and
see that the prologue code is wrong anyway.  What's there is for HPUX
_mount, which is non-standard.  !@(*$&()*

So that's double sorry, I guess :-(

Alan Modra
-- 
Linuxcare.  Support for the Revolution.





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From: Kevin Read <obsidian@panokratie.de>
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Subject: Re: [parisc-linux] Test on 705
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On Fri, 16 Feb 2001, Thomas Marteau wrote:

> Hi Kevin,
>
> 	It seems like you want to boot with the file system via nfs.

Yes, thats my intention.

> This is waht that means:
>
> mount: RPC call returned error 229
> Root-NFS: Server returned error -229 while mounting /tftpboot/(none)
> VFS: Unable to mount root fs via NFS, trying floppy.
> VFS: Cannot open root device "nfs" or 02:00
> Please append a correct "root=" boot option
>
> If it is not what you want, please refer to the PALO Readme or to the
> official website PALO How-To

Thanks for the pointers! I tcpdumped the network and couldn't see any
bootp requests so I figured that the kernel couldn't access the network
chip, too.

BTW, this kernel is from yesterdays CVS.


>
> Good Luck, Thomas
>
> ESIEE Team
> Visit http://www.esiee.fr/puffin
>





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From: Kevin Read <obsidian@panokratie.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Can't build kernel without PCI
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Hi folks,

btw, the kernel won't build if you don't select PCI support which I don't
have on the 705 ;). It complains about missing inb and outb functions.
When I select it everything is ok.

Bye,

			Kev





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Subject: Re: [parisc-linux] Test on 705
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On Fri, Feb 16, 2001 at 12:18:53AM +0100, Kevin Read wrote:
> 
> Hi folks,
> 
> first a little praise: It only took me 2 hours to get up and running and
> starting to build me own kernel with palinux! I like your informative
> homepage and FAQs! Keep it up!
> 
> I booted it up on my 705 (Flounder), further below is the output I got.
> 
> It seems it can't get consistent with the memory my ether and SCSI
> controller use, and its muttering about DMA too. It didn't find any SCSI
> devices and I couldn't find any packets from the box on the net.

This looks to me very much like the problems with 710(bushmaster),
where things basically work, but interrupts from the scsi and ethernet
chips just never get seen by the cpu.

We need info from someone with access to hp documentation to fix
these systems, I think.

Richard





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Hi all,

Is ftp://puffin.external.hp.com/pub/parisc/cvs still the place to get the
latest source bundles?

If so, does anyone know why it isnt updating?

-rw-r--r--   1 500      233     19449856   Feb  3 07:13   linux-20010203.tar.gz
-rw-r--r--   1 500      233            0   Feb  4 07:12   linux-20010204.tar.gz
-rw-r--r--   1 500      233            0   Feb  5 07:10   linux-20010205.tar.gz
-rw-r--r--   1 500      233            0   Feb  6 07:10   linux-20010206.tar.gz
-rw-r--r--   1 500      233            0   Feb  7 07:09   linux-20010207.tar.gz
-rw-r--r--   1 500      233            0   Feb  8 07:10   linux-20010208.tar.gz
lrwxrwxrwx   1 500      233           21   Feb  8 07:10   linux-latest.tar.gz -> linux-20010208.tar.gz

cheers,

Damian
penfold@customware.com.au





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penfold@customware.com.au writes...

> Hi all,
> 
> Is ftp://puffin.external.hp.com/pub/parisc/cvs still the place to get the
> latest source bundles?
> 
> If so, does anyone know why it isnt updating?

It probably ran out of disk space. I cleaned things up and generated new ones.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Kevin Read wrote:
> 
> Hi folks,
> 
> btw, the kernel won't build if you don't select PCI support which I don't
> have on the 705 ;). It complains about missing inb and outb functions.
> When I select it everything is ok.

Your 705 doesn't have anything "PCI-Like" in either.
The "inb/outb" imply you are including a driver that's "PCI-like".
If you can narrow down which driver(s) complain about it...

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: Re: [parisc-linux] Test on 705
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On Fri, 16 Feb 2001, Richard Hirst wrote:

> On Fri, Feb 16, 2001 at 12:18:53AM +0100, Kevin Read wrote:
> >
> > Hi folks,

> > devices and I couldn't find any packets from the box on the net.
>
> This looks to me very much like the problems with 710(bushmaster),
> where things basically work, but interrupts from the scsi and ethernet
> chips just never get seen by the cpu.
>
> We need info from someone with access to hp documentation to fix
> these systems, I think.

You wouldn't know who I could pester until I got this stuff? ;)

Or is there a way to scrounge this info from HP-UX?

Thanks,


		Kev





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Subject: [parisc-linux] E25 lock-up during boot.
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I am attempting to ge PA installed on a HP9000 E25.  I am able to boot from the
0.5 CD image, however it locks-up during the boot.  Any ideas?

Here is the boot output:

Main Menu: Enter command or menu > bo 56/52.4
Interact with IPL (Y or N)?> n

Booting...
Boot IO Dependent Code (IODC) revision 4


HARD Booted.
palo ipl bame@noam Tue Oct 31 14:18:02 MST 2000
0/vmlinux 2140145 bytes @ 0x6f9800
0/palo-cmdline '0/vmlinux ROOT=/ TERM=LINUX root=/dev/scd0'
Kernel: partition 0 file /vmlinux
ELF32 executable

Entry 00100150 first 00100000 n 4
Segment 0 load 00100000 size 1460344 mediaptr 0x1000
Segment 1 load 00266000 size 179048 mediaptr 0x166000
Segment 2 load 00294000 size 109876 mediaptr 0x192000
Segment 3 load 002b0000 size 8192 mediaptr 0x1ad000
branching to kernel entry point 0x00100150
Set default PSW W bit to 0
PDC Console Initialized
The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02da000
(0x504d6c,0x504d6c,0x0,0x0)
PALO command line: 'ROOT=/ TERM=LINUX root=/dev/scd0'
PALO initrd 0-0
model   00004800 00000481 00000000 00000000 76d05eab 100000f0 00000004 00000072
00000072
vers    0000000b
CPUID vers 0 rev 0
Searching for devices in PDC firmware... processor hpa 0xfffbe000
a newer box...
Found devices:
1. Orville UX Core BA (11) at 0xf0100000, versions 0x12, 0x0, 0x81, 0x0, 0x0
2. Orville Core Lan (802.3) (10) at 0xf0107000, versions 0x12, 0x0, 0x8a, 0x0, 0
x0
That's a total of 2 devices.
No CPUs reported by firmware - probing...
Found CPU at fffbe000
CPU(s): 1 x PA7100LC (PCX-L) at 48.000000 MHz
Linux version 2.4.0-test6 (pjlahaie@elenuial.thepuffingroup.com) (gcc version 2.
96 20000925 (experimental)) #32 Mon Nov 6 10:20:58 EST 2000
free_bootmem(0x2dc000, 0xfd24000)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 65536
zone(0): 32768 pages.
zone(1): 32768 pages.
zone(2): 0 pages.
Kernel command line: ROOT=/ TERM=LINUX root=/dev/scd0
trap_init
Calibrating delay loop... 47.82 BogoMIPS
Memory: 254336k available
Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xf0100000 found.









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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] E25 lock-up during boot.
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On Sat, Feb 17, 2001 at 07:09:37PM -0600, Scott Eggert wrote:
> I am attempting to ge PA installed on a HP9000 E25.  I am able to boot
> from the 0.5 CD image, however it locks-up during the boot.  Any ideas?

Which part of `E class is not supported' is hard to understand?  :-)

> Searching for devices in PDC firmware... processor hpa 0xfffbe000
> a newer box...
> Found devices:
> 1. Orville UX Core BA (11) at 0xf0100000, versions 0x12, 0x0, 0x81, 0x0, 0x0
> 2. Orville Core Lan (802.3) (10) at 0xf0107000, versions 0x12, 0x0, 0x8a, 0x0, 0
> x0
> That's a total of 2 devices.
> No CPUs reported by firmware - probing...
> Found CPU at fffbe000
> POSIX conformance testing by UNIFIX
> Lasi version 0 at 0xf0100000 found.

Having said that, I bet this is the same problem as FAQ 9:

I'm booting parisc linux on an early Series 700 workstation, and the 
machine hangs after printing:

ASP version 1 at ..... found

What's going on?

This was a bug in the parallel port driver, which was fixed in CVS on 
2000-11-29. You can workaround the problem by using a newer kernel or
by reconfiguring your kernel and removing support for the parallel port
(CONFIG_PARPORT_GSC).


But... there's no Lasi in an E-class.  Something's wrong with our detection
routines, perhaps.  I admit to being curious about the `Core Lan' that's
reported -- maybe it'll work.

-- 
Revolutions do not require corporate support.




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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Initial setup of the `glibc' in the target rootfile 
 system
Date: Sun, 18 Feb 2001 11:28:40 +0100
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Hello again !

I have found the method working here.

The GLIBC must be built with the line:

	make user-defined-trusted-dirs=/lib 

This adds the `/lib' to the internal trusted search path, which is
defined in the
generated files ./elf/trusted-dirs.{st,h}. After this the normal
installation to the
configured prefix (in my case /usr/parisc/hppa-linux)

	make install user-defined-trusted-dirs=/lib

and the installation to the NFS root directory can be done by repeating
install with

	make install user-defined-trusted-dirs=/lib
install_root=/tftpboot/apollo/root

On the workstation (booted from the palinux-0.5 root file system) I
mounted my new
NFS root to /mnt and used the command
	
	ldconfig -v -r /mnt

And after that I booted from tne new root, and the error was, that there
was no inittab
and no process left......

So I have success !!!! (I know, that there is nothing to boot further,
except the init
itself !!)

Now a further question. How to build successfully a `bash', with other
tools (expect
strace) I have not so big problems.

The `bash' built process has problems in `configure' in a cross compiled
environment.
It tries some functions via C examples, and they have difficulties to
determine the
result of a compile option, as this is not native....

I tried with 

	HOSTCC=gcc CC=hppa-linux-gcc ../configure --host=hppa-linux \
		 --prefix=/usr/parisc/hppa-linux 

Configure stops with:

checking for working alloca.h... yes
checking for alloca... yes
checking whether getpgrp takes no argument... configure: error: cannot
check getpgrp if cross compiling

How to build a bash (I am always interested in building from the scratch
(hobby)) !

With friendly regards

	Christoph P.

Alan Modra wrote:
> 
> On Thu, 8 Feb 2001, Christoph Plattner wrote:
> 
> > After the glibc builts perfect, I have a problem in setting up the root
> [snip]
> > with page fault or with "cannot find libc.6.so". Only the root of the
> [snip]
> 
> "with page fault" is possibly due to the glibc bug I mentioned in
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-February/011686.html
> 
> "cannot find libc.so.6" is a different problem, a result of
> cross-compiling glibc with --prefix different to final install location.
> Let's see if I can explain the problem...
> 
> Suppose you want to cross-compile the toolchain and glibc from an
> i686-linux system, and you have chosen --target=hppa-linux.  Further
> suppose you decide to install to /usr/ on your host x86 system (This
> does work safely, despite various recipes recommending /usr/parisc,
> or /opt/parisc).  Now when cross-compiling glibc, you obviously _don't_
> want to install glibc on your host to /usr, as the glibc you create is an
> hppa-linux binary, which doesn't run very well on x86-linux!  So the
> proper install destination for glibc is given by --prefix=/usr/hppa-linux.
> This is also the root of directories where your hppa-linux cross-tools
> will look first for libraries and system header files etc.  If you chooes
> some other prefix (ie. not <compiler prefix>/<compiler target>) then
> you'll have problems cross compiling.
> 
> However, trying to install the glibc that works for a cross-compiler
> tool-chain to your target system, at a different location, fails
> miserably because shared libraries specify where to look for their
> "interpreter" (dynamic linker).  Your cross-compiled glibc will be looking
> for /usr/hppa-linux/lib/ld.so.1, while a native glibc will look for
> /lib/ld.so.1.  Also, a cross-compiled dynamic linker knows to look under
> /usr/hppa-linux/ for libraries and ld.so.cache.  On the other hand, you
> probably want your libraries in their normal locations so that you don't
> accidentally use the wrong library.
> 
> Of course, it's very useful to be able to install your cross-compiled
> glibc to your target :-), and hopefully the above explanation suggests one
> way around the problems:
>  - Install your glibc to a temp dir on your nfs server
>    eg. "make install_root=/var/tmp/install"
>  - Move files from /var/tmp/install to /tftpboot/<proper locataion>
>    It helps if you know what <proper location> is!  Compile glibc native
>    for x86 and install to another temp dir if you don't know.
>  - Make relative symbolic links in /tftpboot/.../usr/hppa-linux/lib/ to
>    the shared libs you installed to /tftpboot/.../lib/
>  - ln -s ../../etc /tftpboot/.../usr/hppa-linux/etc too
>  - What else?  Oh yeah, /usr/lib/libc.so and some of the files installed
>    to /usr/bin/ are text files, and some have paths to    /usr/hppa-linux.
>    Edit them.
> 
> It would be nice if you could cross-compile glibc with --prefix=/usr, but
> last time I tried this, quite some time ago, it failed because
> /usr/include/ was being used for headers.  Maybe there's an easy way
> around this.
> 
> Alan Modra
> --
> Linuxcare.  Support for the Revolution.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: [parisc-linux] Cross-Compiling BASH
Date: Sun, 18 Feb 2001 11:30:59 +0100
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How to build successfully a `bash', with other tools (expect
strace) I have not so big problems.

The `bash' built process has problems in `configure' in a cross compiled
environment.
It tries some functions via C examples, and they have difficulties to
determine the
result of a compile option, as this is not native....

I tried with 

	HOSTCC=gcc CC=hppa-linux-gcc ../configure --host=hppa-linux \
		 --prefix=/usr/parisc/hppa-linux 

Configure stops with:

checking for working alloca.h... yes
checking for alloca... yes
checking whether getpgrp takes no argument... configure: error: cannot
check getpgrp if cross compiling

How to build a bash (I am always interested in building from the scratch
(hobby)) !

With friendly regards

	Christoph P.





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Subject: Re: [parisc-linux] E25 lock-up during boot.
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On Sunday 18 February 2001 02:52, Matthew Wilcox wrote:
> On Sat, Feb 17, 2001 at 07:09:37PM -0600, Scott Eggert wrote:
> > I am attempting to ge PA installed on a HP9000 E25.  I am able to boot
> > from the 0.5 CD image, however it locks-up during the boot.  Any ideas?
>
> Which part of `E class is not supported' is hard to understand?  :-)
>
> > Searching for devices in PDC firmware... processor hpa 0xfffbe000
> > a newer box...
> > Found devices:
> > 1. Orville UX Core BA (11) at 0xf0100000, versions 0x12, 0x0, 0x81, 0x0,
> > 0x0 2. Orville Core Lan (802.3) (10) at 0xf0107000, versions 0x12, 0x0,
> > 0x8a, 0x0, 0 x0
> > That's a total of 2 devices.
> > No CPUs reported by firmware - probing...
> > Found CPU at fffbe000
> > POSIX conformance testing by UNIFIX
> > Lasi version 0 at 0xf0100000 found.
>
> Having said that, I bet this is the same problem as FAQ 9:
>
> I'm booting parisc linux on an early Series 700 workstation, and the
> machine hangs after printing:
>
> ASP version 1 at ..... found
>
> What's going on?
>
> This was a bug in the parallel port driver, which was fixed in CVS on
> 2000-11-29. You can workaround the problem by using a newer kernel or

The FAQ is wrong at this point.
You will need a kernel which is newer than 2001-02-16 
(http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2001-February/028548.html)
Maybe I should fix the FAQ again ASAP :-)

> by reconfiguring your kernel and removing support for the parallel port
> (CONFIG_PARPORT_GSC).
>
>
> But... there's no Lasi in an E-class.  Something's wrong with our detection
> routines, perhaps.  I admit to being curious about the `Core Lan' that's
> reported -- maybe it'll work.




From - Thu Nov 08 21:16:33 2018
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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Initial setup of the `glibc' in the target rootfile
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On Sun, 18 Feb 2001, Christoph Plattner wrote:

> The GLIBC must be built with the line:
> 
> 	make user-defined-trusted-dirs=/lib 

Good.  There's probably other ways around the problem too.  Just be aware
that installing glibc built with the above in your cross-compiling machine
will probably be wrong.  Looking in /lib will pick up x86 libraries
instead of hppa-linux ones.

> Configure stops with:
> 
> checking for working alloca.h... yes
> checking for alloca... yes
> checking whether getpgrp takes no argument... configure: error: cannot
> check getpgrp if cross compiling

You can edit config.cache to set the correct values.  Doing so can be a
pain.  It's probably easier and better to compile native.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.





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Subject: [parisc-linux] Some progress with WAX_EISA (Who knows about interrupts?)
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---1463811727-1804289383-982511956=:30534
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Hello Alex and all.

Today I managed to get the ne driver to initialize my NE2k clone in the
EISA slot on my  715/old.
I have no idea on what to do about interrupts, so the do not work. But
port I/O seems to work which it did not do before.

For this to work the WAX EISA must be the first PCI bus adapter to be
registered with the PCI code or else it does not get to mapped to the
ISA port range. This will only be problematic on boxes where there are
both a EISA bus and a PCI bus and I do not know if there are any.

/Daniel 

-- 


---1463811727-1804289383-982511956=:30534
Content-Type: TEXT/plain; CHARSET=US-ASCII
Content-Disposition: attachment ; filename="0218.diff"

Index: drivers/gsc/busdevice.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/gsc/busdevice.c,v
retrieving revision 1.13
diff -u -p -r1.13 busdevice.c
--- busdevice.c	2000/12/22 20:50:23	1.13
+++ busdevice.c	2001/02/18 15:40:21
@@ -39,7 +39,7 @@
 #endif
 
 
-static struct pa_iodc_driver busdev_drivers_for[] __initdata = {
+static struct pa_iodc_driver busdev_drivers_for[] = {
 /* I'm pretty sure this covers them all. */
   {HPHW_BA, 0x0, 0, 0x00081, 0, 0,
 	DRIVER_CHECK_HWTYPE + DRIVER_CHECK_SVERSION,
@@ -275,6 +275,9 @@ int __init busdevices_init(void)
 
 #ifdef CONFIG_GSC_WAX
 	register_wax_driver();
+#endif
+#ifdef CONFIG_WAX_EISA
+	register_wax_eisa_driver();
 #endif
 
 	return 0;
Index: drivers/gsc/wax.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/gsc/wax.c,v
retrieving revision 1.5
diff -u -p -r1.5 wax.c
--- wax.c	2000/12/22 20:50:23	1.5
+++ wax.c	2001/02/18 15:40:21
@@ -145,9 +145,6 @@ wax_init_chip(struct hp_device *d, struc
 	printk("%s: HIL Keyboard-NMI registered.\n", wax->name);
 #endif
 
-#ifdef CONFIG_WAX_EISA
-	register_wax_eisa_driver();
-#endif
 
 	return ret;
 }
Index: drivers/gsc/wax_eisa.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/gsc/wax_eisa.c,v
retrieving revision 1.1
diff -u -p -r1.1 wax_eisa.c
--- wax_eisa.c	2000/12/22 20:50:23	1.1
+++ wax_eisa.c	2001/02/18 15:40:21
@@ -21,6 +21,7 @@
 #include <asm/hardware.h>
 #include <asm/gsc.h>
 #include <asm/irq.h>
+#include <linux/pci.h>
 #include <asm/pci.h>
 #include <asm/processor.h>
 
@@ -40,52 +41,45 @@ static struct pa_iodc_driver wax_eisa_dr
 };
 
 #define WAX_EISA_OUT(type, size) \
-static void wax_out##type (u##size d, int addr) \
+static void wax_out##type (struct pci_hba_data *hba, u16 addr, u##size d) \
 { \
 	u32 out_addr; \
-	if (((addr >= 0x00080000) && (addr < 0x00100000)) || \
-		((addr >= 0x00500000) && (addr < 0x03C00000))) { \
-		out_addr = 0xfc000000 + ((addr & 0xfc00) >> 6) + \
+        out_addr = (u32)hba->base_addr + ((addr & 0xfc00) >> 6) + \
 			((addr & 0x03f8) << 9) + (addr & 0x0007) ; \
-		gsc_write##type(d,out_addr); \
-	} else { \
-		printk("Wax EISA: Ack, cannot write to 0x%x\n",addr); \
-	} \
+	gsc_write##type(d,out_addr); \
 } 
 
+
 WAX_EISA_OUT(b,8)
 WAX_EISA_OUT(w,16)
 WAX_EISA_OUT(l,32)
 
 #define WAX_EISA_IN(type, size) \
-static u##size wax_in##type (int addr) \
+static u##size wax_in##type (struct pci_hba_data *hba, u16 addr) \
 { \
-	u32 out_addr; \
-	if (((addr >= 0x00080000) && (addr < 0x00100000)) || \
-		((addr >= 0x00500000) && (addr < 0x03C00000))) { \
-		out_addr = 0xfc000000 + ((addr & 0xfc00) >> 6) + \
-			((addr & 0x03f8) << 9) + (addr & 0x0007) ; \
-		return gsc_read##type(out_addr); \
-	} else { \
-		printk("WAX EISA Ack, cannot read from 0x%x\n",addr); \
-		return -1; \
-	} \
+	u32 in_addr; \
+        in_addr = (u32)hba->base_addr + ((addr & 0xfc00) >> 6) + \
+	       ((addr & 0x03f8) << 9) + (addr & 0x0007) ; \
+	return gsc_read##type(in_addr); \
 }
 
+
 WAX_EISA_IN(b,8)
 WAX_EISA_IN(w,16)
 WAX_EISA_IN(l,32)
 
 static struct pci_port_ops wax_port_ops = {
-	wax_inb, wax_inl, wax_inw,
-	wax_outb, wax_outl, wax_outw
+	wax_inb, wax_inw, wax_inl,
+	wax_outb, wax_outw, wax_outl
 };
 
 struct pci_hba_data wax_eisa_hba;
 
+/*
+ * What are these for? 
 #define outsl(x) outl((x))
 #define insl(x) inl((x))
-
+*/
 /*
 The following need to be created still.
 memset_io
@@ -117,9 +111,14 @@ wax_eisa_driver_init(struct hp_device *d
 
 	version = gsc_readw(d->hpa+0x7000);
 	printk(KERN_INFO "Wax EISA bus adapter version 0x%x at 0x%p\n",version,d->hpa);
-
-	pcibios_register_hba((struct pci_hba_data *) &wax_port_ops);
-
+        
+        /* I think that hpa is the only part that makes sence to us */
+        wax_eisa_hba.base_addr=d->hpa;
+   
+     
+	pcibios_register_hba((struct pci_hba_data *) &wax_eisa_hba);
+        pci_port = (struct pci_port_ops*) &wax_port_ops;
+   
 #if 0
 	/* Turn off lock control */
 	gsc_writeb(0x0,d->hpa + 0x10001); 
Index: include/asm-parisc/io.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/io.h,v
retrieving revision 1.15
diff -u -p -r1.15 io.h
--- io.h	2001/01/25 00:03:08	1.15
+++ io.h	2001/02/18 15:40:27
@@ -25,6 +25,7 @@
 #define writel gsc_writel
 
 
+
 #if defined(CONFIG_PCI) || defined(CONFIG_ISA)
 /*
  *	So we get clear link errors 
@@ -43,8 +44,34 @@ static inline void memcpy_toio(void *des
 		writeb(*((char *)src)++, (char *)dest++);
 }
 
-#endif
+/* ins and outs */
+#define PCI_PORT_OUTS(type, size) \
+extern inline void outs##type(unsigned short port, void * addr, unsigned long count) \
+{ while (count) { \
+    out##type(*(u##size*)addr, port); \
+    addr+=sizeof(u##size); \
+    count--; \
+  } \
+}
+
+PCI_PORT_OUTS(b,8)
+PCI_PORT_OUTS(w,16)
+PCI_PORT_OUTS(l,32)
 
+#define PCI_PORT_INS(type, size) \
+extern inline void ins##type(unsigned short port, void * addr, unsigned long count) \
+{ while (count) { \
+    *(u##size*)addr = in##type(port); \
+    addr+=sizeof(u##size); \
+    count--; \
+  } \
+} 
+
+PCI_PORT_INS(b,8)
+PCI_PORT_INS(w,16)
+PCI_PORT_INS(l,32)
+
+#endif
 /* IO Port space is :      BBiiii   where BB is HBA number. */
 #define IO_SPACE_LIMIT 0x00ffffff
 
Index: include/asm-parisc/irq.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/irq.h,v
retrieving revision 1.12
diff -u -p -r1.12 irq.h
--- irq.h	2000/11/02 08:14:13	1.12
+++ irq.h	2001/02/18 15:40:27
@@ -74,6 +74,9 @@ static __inline__ int irq_cannonicalize(
 
 extern void disable_irq(int);
 extern void enable_irq(int);
+/* It seems that the standard disable_irq() in parisc-linux 
+ * does not sync, so this should be safe */
+#define disable_irq_nosync(x) disable_irq(x)
 
 extern void do_irq_mask(unsigned long mask, struct irq_region *region,
 	struct pt_regs *regs);

---1463811727-1804289383-982511956=:30534--




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Subject: Re: [parisc-linux] Initial setup of the `glibc' in the target 
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Date: Sun, 18 Feb 2001 17:49:08 +0100
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Point (1):

No you have no pain at this point. This `/lib' is GLIBC built in and is
only
evaluated from the shared library loader (./elf/dl-load.c) at runtime
(as
far as I understood the stuff). So this has no influence on any cross
built
process. On the running binary (on the target machine) sees two "lib
search 
strings" one to `/usr/parisc/hppa-linux/lib' and one to '/lib'. The
runnung
binary on the target (HP PA) can then try both and will find it in
'/lib'.

The file ./elf/ld-load.c is the only one using this information as far I
found
per `grep'.

But if I am wrong, please correct me.....

Point (2): 

I will see...

With friendly regards

	Christoph P.
	

Alan Modra wrote:
> 
> On Sun, 18 Feb 2001, Christoph Plattner wrote:
> 
> > The GLIBC must be built with the line:
> >
> >       make user-defined-trusted-dirs=/lib
> 
> Good.  There's probably other ways around the problem too.  Just be aware
> that installing glibc built with the above in your cross-compiling machine
> will probably be wrong.  Looking in /lib will pick up x86 libraries
> instead of hppa-linux ones.
> 
> > Configure stops with:
> >
> > checking for working alloca.h... yes
> > checking for alloca... yes
> > checking whether getpgrp takes no argument... configure: error: cannot
> > check getpgrp if cross compiling
> 
> You can edit config.cache to set the correct values.  Doing so can be a
> pain.  It's probably easier and better to compile native.
> 
> Alan Modra
> --
> Linuxcare.  Support for the Revolution.

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Some progress with WAX_EISA (Who knows about interrupts?)
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5116@telia.com wrote:
> Hello Alex and all.
> 
> Today I managed to get the ne driver to initialize my NE2k clone in the
> EISA slot on my  715/old.

Excellent! Good work!

> I have no idea on what to do about interrupts, so the do not work. But
> port I/O seems to work which it did not do before.

For some reason, I'm thinking the interrupts are routed through LASI
but I don't know why. The whole "Core I/O" interrupt routing is a
convoluted mess and I haven't looked at it in nearly a year.  I'm
afraid someone with access to HPUX source is going to have to unravel
that for you.

> For this to work the WAX EISA must be the first PCI bus adapter to be
> registered with the PCI code or else it does not get to mapped to the
> ISA port range.

That's not true. The "virtualized" bus numbers I think are confusing you.
Treat the addresses as "handles" to the address space and the EISA bus
support can strip off the bus number to get the real I/O Port address.

> This will only be problematic on boxes where there are
> both a EISA bus and a PCI bus and I do not know if there are any.

There are. Some of the workstations had all three: GSC, PCI, EISA slots.
There are even some systems with PA2.0 processors and EISA.

...
>  #define WAX_EISA_OUT(type, size) \
> -static void wax_out##type (u##size d, int addr) \
> +static void wax_out##type (struct pci_hba_data *hba, u16 addr, u##size d) \
...
> +        out_addr = (u32)hba->base_addr + ((addr & 0xfc00) >> 6) + \
>  			((addr & 0x03f8) << 9) + (addr & 0x0007) ; \

Note that the upper bits of the I/O port address are ignored anyway.
Ditto for the inb() functions.

...
> +        /* I think that hpa is the only part that makes sence to us */

typo: s/sence/sense/

> +        wax_eisa_hba.base_addr=d->hpa;
> +
> +	pcibios_register_hba((struct pci_hba_data *) &wax_eisa_hba);
> +        pci_port = (struct pci_port_ops*) &wax_port_ops;

Setting pci_port will prevent PCI I/O port space from working correctly
in the same box.  The design is "broken" because last year I didn't get
a clear answer on what is "PCI-like" and what isn't.

Let me propose the following:
o pci_port becomes an array (it doesn't look like pci_bios needs to)
o add "pci_port_ops *" parameter to pci_register_hba().
  pci_register_hba could then fill in the pci_port array.
o code in PCI_PORT_IN/OUT invoke (pci_port[b]->inb)(...) where 'b'
  is already used to look up bus specific data.

If someone is interested in making both PCI and EISA work in the same
box, please code up a patch with something along the lines of the above
proposal, I'll review and commit it. 

> +/* It seems that the standard disable_irq() in parisc-linux 
> + * does not sync, so this should be safe */
> +#define disable_irq_nosync(x) disable_irq(x)

Is "sync" instruction meant here?
Why is that a bad thing?

For SMP, we may eventually need both sync and/or dmasync instructions.
I don't understand all the issues on all platforms and thus just want
to document what people are thinking.

BTW, "disable_irq()" gets redirected to the region that owns the IRQ.
So for a CPU IRQ region, the code will land in disable_cpu_irq().
However, I don't expect EISA code to report directly to a CPU.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: Re: [parisc-linux] Some progress with WAX_EISA (Who knows about int
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On 18 Feb, Grant Grundler wrote:
> 5116@telia.com wrote:
>> Hello Alex and all.

>> I have no idea on what to do about interrupts, so the do not work. But
>> port I/O seems to work which it did not do before.
> 
> For some reason, I'm thinking the interrupts are routed through LASI
> but I don't know why. The whole "Core I/O" interrupt routing is a
> convoluted mess and I haven't looked at it in nearly a year.  I'm
> afraid someone with access to HPUX source is going to have to unravel
> that for you.

I see that some machines (those with a LASI?) have another WAX device as
well as the was EISA BA, that is installed as an interrupt router
(drivers/gsc/wax.c) but my machine does not have this device, only the
WAX EISA BA ant the ASP.

>> For this to work the WAX EISA must be the first PCI bus adapter to be
>> registered with the PCI code or else it does not get to mapped to the
>> ISA port range.
> 
> That's not true. The "virtualized" bus numbers I think are confusing you.
> Treat the addresses as "handles" to the address space and the EISA bus
> support can strip off the bus number to get the real I/O Port address.
Yes, but ISA drivers vill expect that 0x300 is 0x300 ant not 0x20300.
PCI drivers all get their port addresses from probing the bus so they
will 'just work'.

 

> 
>> +        wax_eisa_hba.base_addr=d->hpa;
>> +
>> +	pcibios_register_hba((struct pci_hba_data *) &wax_eisa_hba);
>> +        pci_port = (struct pci_port_ops*) &wax_port_ops;
> 
> Setting pci_port will prevent PCI I/O port space from working correctly
> in the same box.  The design is "broken" because last year I didn't get
> a clear answer on what is "PCI-like" and what isn't.
> 
> Let me propose the following:
> o pci_port becomes an array (it doesn't look like pci_bios needs to)
> o add "pci_port_ops *" parameter to pci_register_hba().
>   pci_register_hba could then fill in the pci_port array.
> o code in PCI_PORT_IN/OUT invoke (pci_port[b]->inb)(...) where 'b'
>   is already used to look up bus specific data.
Yes, I had some idea in this direction to, are we sure this belongs in
the PCI layer? It might be thought of as an IO switch above the
PCI/EISA/what-ever as well.
 
>> +/* It seems that the standard disable_irq() in parisc-linux 
>> + * does not sync, so this should be safe */
>> +#define disable_irq_nosync(x) disable_irq(x)
>
> Is "sync" instruction meant here?
> Why is that a bad thing?
Well the i386 version is that disable_irq() waits until all pending
interrupts on the local processor have been serviced while
disable_irq_nosync() returns immediately. The parisc version of
disable_irq() seems to be what disable_irq_nosync() is on the i386. 

Best Regards,
 
/Daniel

-- 






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5116@telia.com wrote:
> On 18 Feb, Grant Grundler wrote:
> > That's not true. The "virtualized" bus numbers I think are confusing you.
> > Treat the addresses as "handles" to the address space and the EISA bus
> > support can strip off the bus number to get the real I/O Port address.
> Yes, but ISA drivers vill expect that 0x300 is 0x300 ant not 0x20300.

What you are telling me is the ISA drivers poke around using hardcoded
addresses they "know" about. My proposal is still useful but WAX/EISA
needs to reserve HBA 0.

> PCI drivers all get their port addresses from probing the bus so they
> will 'just work'.

The physical PCI Port addresses are virtualized by the linux PCI
"BIOS" layer. PCI Drivers don't go poking around on the bus on their own.

...
> Yes, I had some idea in this direction to, are we sure this belongs in
> the PCI layer? It might be thought of as an IO switch above the
> PCI/EISA/what-ever as well.

inb/outb is a "PCI-like" layer.  inb/outb happens to be implemented in
"PCI" code (pci.h) since that worked first.  If you have an idea of
where inb/outb switch ought to "live", I'm curious.

> Well the i386 version is that disable_irq() waits until all pending
> interrupts on the local processor have been serviced while
> disable_irq_nosync() returns immediately. The parisc version of
> disable_irq() seems to be what disable_irq_nosync() is on the i386. 

Uhm. I still don't see the distinction.
"nosync" suggests an interaction with other CPU's?

A CPU will *always* service IRQ's before the CPU continues with
"regular" code.  disable_irq() guarantees no *new* interrupts
will occur until enable_irq() is called. I don't totally understand
the CONFIG_SMP version of that code though.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
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Subject: [parisc-linux] Cannot build 02/18/2001 glibc
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Hello,

Following the recipe for building the toolchain, I got stuck building
glibc.

The configure error message is:

$ROOT/source/glibc/configure --host=hppa-linux --build=$MACH 
--prefix=$DEST/hppa-linux --with-headers=$ROOT/source/linux/include 
--disable-profile --without-cvs --enable-add-ons
[...]
checking for assembler line separator... *** You need a newer assembler
to compile glibc


The log contains:

configure:2942: checking for assembler line separator
configure:2949: gcc -v -Wa,-v -c  conftest.s 1>&5
Reading specs from /usr/lib/gcc-lib/i486-suse-linux/2.95.2/specs
gcc version 2.95.2 19991024 (release)
 /usr/i486-suse-linux/bin/as -V -Qy -v -o conftest.o conftest.s
GNU assembler version 2.9.5 (i486-suse-linux) using BFD version
2.9.5.0.24
conftest.s: Assembler messages:
conftest.s:1: Error: invalid character '_' in mnemonic

The binaries called and the version numbers are shown. Do I need to
upgrade the assembler or is it a PATH misconfiguration? Thanks.

-- 
     Rafael




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Subject: RE: [parisc-linux] E25 lock-up during boot.
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I have exactly the same problem!

> -----Message d'origine-----
> De : parisc-linux-admin@lists.parisc-linux.org
> [mailto:parisc-linux-admin@lists.parisc-linux.org]De la part de Scott
> Eggert
> Envoy : dimanche 18 fvrier 2001 02:10
>  : parisc-linux@lists.parisc-linux.org
> Objet : [parisc-linux] E25 lock-up during boot.
>
>
> I am attempting to ge PA installed on a HP9000 E25.  I am
> able to boot from the
> 0.5 CD image, however it locks-up during the boot.  Any ideas?
>
> Here is the boot output:
>
> Main Menu: Enter command or menu > bo 56/52.4
> Interact with IPL (Y or N)?> n
>
> Booting...
> Boot IO Dependent Code (IODC) revision 4
>
>
> HARD Booted.
> palo ipl bame@noam Tue Oct 31 14:18:02 MST 2000
> 0/vmlinux 2140145 bytes @ 0x6f9800
> 0/palo-cmdline '0/vmlinux ROOT=/ TERM=LINUX root=/dev/scd0'
> Kernel: partition 0 file /vmlinux
> ELF32 executable
>
> Entry 00100150 first 00100000 n 4
> Segment 0 load 00100000 size 1460344 mediaptr 0x1000
> Segment 1 load 00266000 size 179048 mediaptr 0x166000
> Segment 2 load 00294000 size 109876 mediaptr 0x192000
> Segment 3 load 002b0000 size 8192 mediaptr 0x1ad000
> branching to kernel entry point 0x00100150
> Set default PSW W bit to 0
> PDC Console Initialized
> The 32-bit Kernel has started...
> Enabled FP coprocessor
> Free memory starts at: 0xc02da000
> (0x504d6c,0x504d6c,0x0,0x0)
> PALO command line: 'ROOT=/ TERM=LINUX root=/dev/scd0'
> PALO initrd 0-0
> model   00004800 00000481 00000000 00000000 76d05eab 100000f0
> 00000004 00000072
> 00000072
> vers    0000000b
> CPUID vers 0 rev 0
> Searching for devices in PDC firmware... processor hpa 0xfffbe000
> a newer box...
> Found devices:
> 1. Orville UX Core BA (11) at 0xf0100000, versions 0x12, 0x0,
> 0x81, 0x0, 0x0
> 2. Orville Core Lan (802.3) (10) at 0xf0107000, versions
> 0x12, 0x0, 0x8a, 0x0, 0
> x0
> That's a total of 2 devices.
> No CPUs reported by firmware - probing...
> Found CPU at fffbe000
> CPU(s): 1 x PA7100LC (PCX-L) at 48.000000 MHz
> Linux version 2.4.0-test6
> (pjlahaie@elenuial.thepuffingroup.com) (gcc version 2.
> 96 20000925 (experimental)) #32 Mon Nov 6 10:20:58 EST 2000
> free_bootmem(0x2dc000, 0xfd24000)
> initrd: 00000000-00000000
> pagetable_init
> On node 0 totalpages: 65536
> zone(0): 32768 pages.
> zone(1): 32768 pages.
> zone(2): 0 pages.
> Kernel command line: ROOT=/ TERM=LINUX root=/dev/scd0
> trap_init
> Calibrating delay loop... 47.82 BogoMIPS
> Memory: 254336k available
> Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)
> Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
> Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
> Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
> POSIX conformance testing by UNIFIX
> Lasi version 0 at 0xf0100000 found.
>
>
>
>
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux





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Subject: RE: [parisc-linux] E25 lock-up during boot.
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	"'Scott Eggert'" <seggert@tds.net>
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How to replace the kernel by a newer in a bootable ISO file ?

> -----Message d'origine-----
> De : parisc-linux-admin@lists.parisc-linux.org
> [mailto:parisc-linux-admin@lists.parisc-linux.org]De la part de Helge
> Deller
> Envoy : dimanche 18 fvrier 2001 11:40
>  : Matthew Wilcox; Scott Eggert
> Cc : parisc-linux@lists.parisc-linux.org
> Objet : Re: [parisc-linux] E25 lock-up during boot.
>
>
> On Sunday 18 February 2001 02:52, Matthew Wilcox wrote:
> > On Sat, Feb 17, 2001 at 07:09:37PM -0600, Scott Eggert wrote:
> > > I am attempting to ge PA installed on a HP9000 E25.  I am
> able to boot
> > > from the 0.5 CD image, however it locks-up during the
> boot.  Any ideas?
> >
> > Which part of `E class is not supported' is hard to understand?  :-)
> >
> > > Searching for devices in PDC firmware... processor hpa 0xfffbe000
> > > a newer box...
> > > Found devices:
> > > 1. Orville UX Core BA (11) at 0xf0100000, versions 0x12,
> 0x0, 0x81, 0x0,
> > > 0x0 2. Orville Core Lan (802.3) (10) at 0xf0107000,
> versions 0x12, 0x0,
> > > 0x8a, 0x0, 0 x0
> > > That's a total of 2 devices.
> > > No CPUs reported by firmware - probing...
> > > Found CPU at fffbe000
> > > POSIX conformance testing by UNIFIX
> > > Lasi version 0 at 0xf0100000 found.
> >
> > Having said that, I bet this is the same problem as FAQ 9:
> >
> > I'm booting parisc linux on an early Series 700 workstation, and the
> > machine hangs after printing:
> >
> > ASP version 1 at ..... found
> >
> > What's going on?
> >
> > This was a bug in the parallel port driver, which was fixed
> in CVS on
> > 2000-11-29. You can workaround the problem by using a newer
> kernel or
>
> The FAQ is wrong at this point.
> You will need a kernel which is newer than 2001-02-16
> (http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2001
> -February/028548.html)
> Maybe I should fix the FAQ again ASAP :-)
>
> > by reconfiguring your kernel and removing support for the
> parallel port
> > (CONFIG_PARPORT_GSC).
> >
> >
> > But... there's no Lasi in an E-class.  Something's wrong
> with our detection
> > routines, perhaps.  I admit to being curious about the
> `Core Lan' that's
> > reported -- maybe it'll work.
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux





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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Cannot build 02/18/2001 glibc
Date: Mon, 19 Feb 2001 19:49:34 +1100 (EST)
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On Mon, 19 Feb 2001, Rafael E. Herrera wrote:

> checking for assembler line separator... *** You need a newer assembler
> to compile glibc
>[snip]
>  /usr/i486-suse-linux/bin/as -V -Qy -v -o conftest.o conftest.s

Oops, this is an x86 assembler.

> The binaries called and the version numbers are shown. Do I need to
> upgrade the assembler or is it a PATH misconfiguration? Thanks.

You need the hppa-linux assembler installed and available on your PATH.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.






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Hi,
  I've just merged our devel branch gcc down to the trunk.  For anyone who
wants to build it, the procedure is more or less as before, _except_
that to build just the C compiler you do

	configure blah blah --enable-languages=c
	make

instead of

	configure blah blah
	rm some_dirs
	make LANGUAGES=c

Believe it or not, I have actually updated the recipe to reflect these
changes, but will hold off committing until snapshots appear.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.





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Subject: Re: [parisc-linux] Test on 705
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On Sat, Feb 17, 2001 at 09:24:06PM +0100, Kevin Read wrote:
> 
> 
> On Fri, 16 Feb 2001, Richard Hirst wrote:
> 
> > On Fri, Feb 16, 2001 at 12:18:53AM +0100, Kevin Read wrote:
> > >
> > > Hi folks,
> 
> > > devices and I couldn't find any packets from the box on the net.
> >
> > This looks to me very much like the problems with 710(bushmaster),
> > where things basically work, but interrupts from the scsi and ethernet
> > chips just never get seen by the cpu.
> >
> > We need info from someone with access to hp documentation to fix
> > these systems, I think.
> 
> You wouldn't know who I could pester until I got this stuff? ;)

<http://lists.parisc-linux.org/pipermail/parisc-linux/2001-February/011665.html>

might be a starting point.  I think people that can help just have
other priorities at the moment.

Richard




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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
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Subject: Re: [parisc-linux] Cannot build 02/18/2001 glibc
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Alan Modra wrote:
> 
> On Mon, 19 Feb 2001, Rafael E. Herrera wrote:
> 
> > checking for assembler line separator... *** You need a newer assembler
> > to compile glibc
> >[snip]
> >  /usr/i486-suse-linux/bin/as -V -Qy -v -o conftest.o conftest.s
> 
> Oops, this is an x86 assembler.
> 
> > The binaries called and the version numbers are shown. Do I need to
> > upgrade the assembler or is it a PATH misconfiguration? Thanks.
> 
> You need the hppa-linux assembler installed and available on your PATH.

The PATH needs to include both of these entries:

PATH=~/palinux/bin:~/palinux/hppa-linux/bin:$PATH

I had just first one before.

-- 
     Rafael




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] E25 lock-up during boot.
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Cc: 'Helge Deller' <deller@gmx.de>,
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	parisc-linux@lists.parisc-linux.org
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On Mon, Feb 19, 2001 at 09:44:35AM +0100, Florent Guiliani wrote:
> How to replace the kernel by a newer in a bootable ISO file ?

you'll need another linux machine around for this, but:

edit /etc/exports to export /tftpboot to your PA box
mount the cd inside /tftpboot
create a symlink from the cd to the ip address of the machine
	(eg ln -s cd 192.168.2.56)
set up bootp/tftp or rbootd (depending on the age of your machine)

et voila.

-- 
Revolutions do not require corporate support.




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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: [parisc-linux] High Performance LINUX kernel on 720 !
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Hi PA RISC Hackers ?

What have you done with the kernel since 2001-01-13 ?

Today I built a kernel (2001-02-19) and I cannot image.
It is absolutly fast, very fast.

I was so disappointed of the performace before, perhaps the NFS (Root)
speed (net) or whatever.
Every login takes a lot of time.

The new kernel is very fast in comparison. It begins at loading it.
After the palo output it takes a time that the machine starts with the
kernel
output, and now it starts immediatly ....

Really perfect work.....
Continue....

Cheers
	Christoph P.


-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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I have problems with the RTC on this machine...
`hwclock' accesses via `/dev/rtc' (which I created).
It reports an error on reading from the clock:

196:/# hwclock --utc --systohc
RTC_RD_TIME: Bad address
ioctl() to /dev/rtc to read the time failed.
196:/# 

I used the generic RTC driver under "charcater devices".

Have I to select another one ?
Must I patch the driver ... ?
Are there any experiences on that issue ?

Cheers
	Christoph P.



-- 
-------------------------------------------------------------------------
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Subject: Re: [parisc-linux] Some progress with WAX_EISA (Who knows about int
  errupts?)
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On 18 Feb, Grant Grundler wrote:
> 5116@telia.com wrote:
>> On 18 Feb, Grant Grundler wrote:
>> > That's not true. The "virtualized" bus numbers I think are confusing you.
>> > Treat the addresses as "handles" to the address space and the EISA bus
>> > support can strip off the bus number to get the real I/O Port address.
>> Yes, but ISA drivers vill expect that 0x300 is 0x300 ant not 0x20300.
> 
> What you are telling me is the ISA drivers poke around using hardcoded
> addresses they "know" about. My proposal is still useful but WAX/EISA
> needs to reserve HBA 0.
Yes, most ISA devices have a probe list which the use when they are
compiled in, and if I use modules or a kernel command line option I 
want to be able to say io=0x388 when I have set the jumppers on the card
for that address.
 
>> PCI drivers all get their port addresses from probing the bus so they
>> will 'just work'.
> 
> The physical PCI Port addresses are virtualized by the linux PCI
> "BIOS" layer. PCI Drivers don't go poking around on the bus on their own.

That's what I meant. 
> ...
>> Yes, I had some idea in this direction to, are we sure this belongs in
>> the PCI layer? It might be thought of as an IO switch above the
>> PCI/EISA/what-ever as well.
> 
> inb/outb is a "PCI-like" layer.  inb/outb happens to be implemented in
> "PCI" code (pci.h) since that worked first.  If you have an idea of
> where inb/outb switch ought to "live", I'm curious.
A fast check gives that most architectures defines inb/outb as either a
#define or inline function in asm/io.h. SH have an implementation in
arch/kernel/io.c. I think that if only support for one type of BA is
compile then we might use an inline function with a fall back to a
switch routine for the case with support for more than one BA.


>> Well the i386 version is that disable_irq() waits until all pending
>> interrupts on the local processor have been serviced while
>> disable_irq_nosync() returns immediately. The parisc version of
>> disable_irq() seems to be what disable_irq_nosync() is on the i386. 
> 
> Uhm. I still don't see the distinction.
> "nosync" suggests an interaction with other CPU's?
> 
> A CPU will *always* service IRQ's before the CPU continues with
> "regular" code.  disable_irq() guarantees no *new* interrupts
> will occur until enable_irq() is called. I don't totally understand
> the CONFIG_SMP version of that code though.

Well, yes I would expect that if you run with interrupts disabled it
may be an interrupt pending? And the sync would be there in order for
the disable event to propagate trough the interrupt controller hardware
or something similar (you may just have de-installed the interrupt
handler). 
This may or may not apply to parisc hardware, if it does not then both
versions of disable_irq() should be equal, I guess.

/Daniel

-- 






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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Some progress with WAX_EISA (Who knows about int errupts?)
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On Tue, Feb 20, 2001 at 12:41:32AM +0100, 5116@telia.com wrote:
> >> Well the i386 version is that disable_irq() waits until all pending
> >> interrupts on the local processor have been serviced while
> >> disable_irq_nosync() returns immediately. The parisc version of
> >> disable_irq() seems to be what disable_irq_nosync() is on the i386. 
> > 
> > Uhm. I still don't see the distinction.
> > "nosync" suggests an interaction with other CPU's?

i386 sets IRQ_INPROGRESS before it calls handle_IRQ_event and then
clears it after the interrupt handler returns.  I'm not sure whether
local interrupts are disabled at this point or not.  It might well be
an SMP issue.

I suspect we want to add IRQ_INPROGRESS to our interrupt handlers.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] Some progress with WAX_EISA (Who knows about int errupts?)
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On Tue, Feb 20, 2001 at 12:26:36AM +0000, Matthew Wilcox wrote:
> I suspect we want to add IRQ_INPROGRESS to our interrupt handlers.

Now I've looked at it, and noticed the comment:
 * (mostly architecture independent, will move to kernel/irq.c in 2.5.)

I'm pretty certain I need to sit down, grok the differences between it &
our irq.c and make sure our irq.c fits into this scheme.  It might be
worth doing anyway, cos I don't think I'm getting all the interrupts
I should be on SMP.  Eg, the serial console isn't working for input.
I need to track this down properly though...

-- 
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From: dkennedy <dkennedy@linuxcare.com>
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Subject: Re: [parisc-linux] Some progress with WAX_EISA (Who knows about int
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*jump*   I think I'm going to jump into the middle of this one.

I'm going to add my thoughts on the lowlevel x86 stuff and hopefully that
clarifies some stuff (as opposed to add more confusion).  I don't hope to
provide any suggestions.

On Sun, 18 Feb 2001, Grant Grundler wrote:

> 5116@telia.com wrote:
> > Yes, I had some idea in this direction to, are we sure this belongs in
> > the PCI layer? It might be thought of as an IO switch above the
> > PCI/EISA/what-ever as well.
> 
> inb/outb is a "PCI-like" layer.  inb/outb happens to be implemented in
> "PCI" code (pci.h) since that worked first.  If you have an idea of
> where inb/outb switch ought to "live", I'm curious.

In the X86 architecture the IO space and the memory space are logically 
separate.  They are both accessed physically on the same bus but to
access IO space you have to execute an IO instruction.  What this does
physically is set the mem/io pin to indicate that the current bus
request is an IO request.  There are several IO instructions
including: inb, outb, inw, outw (in byte, out byte, in word, out
word).  

So, why have two separate spaces?  Some of the reasons are:
- to be different from Motorola
- to provide a mechanism to add delays for IO while still keeping
  memory fast (relatively speaking).

How does this affect us?  "Back in the day" the ISA bus (and by extension 
the EISA bus) was literally designed by taking the pins out of the X86 
chip and providing a slot mechanism to plug cards into it.  Because of 
that there is no bus controller of any kind anywhere on the bus (unlike 
PCI and all the others).  Software had to pick up the ball with respect 
to ensuring that one device driver does not clobber another.  The ISA 
bus and the other devices on the motherboard are all accessed the same.
Devices are put on the bus at a preset IO address and it is the card
installer's responsibility that there is no overlap in IO address
space and IRQ address space.  Although the ISA bus is now behind the
PCI bus and elsewhere the programming of the ISA bus still hasn't
changed (ya gotta be backward compatible you know!).

Why do we care about ISA?  Well, EISA was designed to support both ISA
and EISA cards (in the same slot) so theoretically someone could want
to put an ISA card into a PA-RISC box.  It would be nice for Linux to
support that.  So, providing virtualized inb, outb, inw, outw for
ISA/EISA is also necessary.

So, what is PCI-like and how does this affect us?  I haven't the
foggiest notion of what PCI-like is.  If someone told me what the
characteristics of PCI-like is then maybe I might be able to talk
about that.

> > Well the i386 version is that disable_irq() waits until all pending
> > interrupts on the local processor have been serviced while
> > disable_irq_nosync() returns immediately. The parisc version of
> > disable_irq() seems to be what disable_irq_nosync() is on the i386. 
> 
> Uhm. I still don't see the distinction.
> "nosync" suggests an interaction with other CPU's?
> 
> A CPU will *always* service IRQ's before the CPU continues with
> "regular" code.  disable_irq() guarantees no *new* interrupts
> will occur until enable_irq() is called. I don't totally understand
> the CONFIG_SMP version of that code though.

Traditionally, on the X86 the interrupt priority and queueing is not done 
on the processor but on an external chip.  There was only one IRQ
line.  After executing every instruction the processor would first check 
to see if interrupts are disabled.  If they aren't it would then check
the IRQ line to see if there is a pending interrupt.  If there is, it
would initiate a interrupt bus sequence to receive the interrupt
number from the external interrupt controller.  It would then dispatch
to the appropriate interrupt service routine with interrupts disabled.

Because of the above sequence disabling interrupts causes all new and
pending interrupts to be disabled.  Also, disabling a specific IRQ is
done on the external interrupt controller and disables all current and
future interrupts on that specific IRQ.

Does any of the above ramblings actually help?

Thanks.

-- 
David Kennedy, Technical Account Manager, Linuxcare, Inc.
613.562.9594 tel, 613.562.9304 fax
dkennedy@linuxcare.com, http://www.linuxcare.com/
Linuxcare.  Putting open source to work.






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5116@telia.com wrote:
> Yes, most ISA devices have a probe list which the use when they are
> compiled in, and if I use modules or a kernel command line option I 
> want to be able to say io=0x388 when I have set the jumppers on the card
> for that address.

The probe list is the problem. We can fixup th command line before
the driver sees it.

> > inb/outb is a "PCI-like" layer.  inb/outb happens to be implemented in
> > "PCI" code (pci.h) since that worked first.  If you have an idea of
> > where inb/outb switch ought to "live", I'm curious.
> A fast check gives that most architectures defines inb/outb as either a
> #define or inline function in asm/io.h.

We could do the inline function routine with a switch statement
but I've concluded a "switch()" statement isn't the right choice.
I think that's a bad tradeoff: minor perf gain for major bloat.
Of course, I'd be happy to see someone prove my SWAG wrong. :^)

> SH have an implementation in
> arch/kernel/io.c. I think that if only support for one type of BA is
> compile then we might use an inline function with a fall back to a
> switch routine for the case with support for more than one BA.

The code isn't currently structured to allow only one type of bus support.
HPUX supports three different PCI bus adapters, two EISA adapters,
GSC, HPPB, and VME busses. I/O port space accesses is definitely not
in the performance path. high performance drivers use MMIO space
and avoid reading from I/O space in general.

> Well, yes I would expect that if you run with interrupts disabled it
> may be an interrupt pending?

If you want to preserve pending interrupts, use mask_irq()/unmask_irq().

> And the sync would be there in order for
> the disable event to propagate trough the interrupt controller hardware
> or something similar (you may just have de-installed the interrupt
> handler). 
> This may or may not apply to parisc hardware, if it does not then both
> versions of disable_irq() should be equal, I guess.

Well, I still don't see what nosync does on a single CPU system.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Matthew Wilcox wrote:
> i386 sets IRQ_INPROGRESS before it calls handle_IRQ_event and then
> clears it after the interrupt handler returns.  I'm not sure whether
> local interrupts are disabled at this point or not.  It might well be
> an SMP issue.
> 
> I suspect we want to add IRQ_INPROGRESS to our interrupt handlers.

I think irqs_running() serves that purpose. no?

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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"Rafael E. Herrera" writes...

> Alan Modra wrote:
> > 
> > On Mon, 19 Feb 2001, Rafael E. Herrera wrote:
> > 
> > > checking for assembler line separator... *** You need a newer assembler
> > > to compile glibc
> > >[snip]
> > >  /usr/i486-suse-linux/bin/as -V -Qy -v -o conftest.o conftest.s
> > 
> > Oops, this is an x86 assembler.
> > 
> > > The binaries called and the version numbers are shown. Do I need to
> > > upgrade the assembler or is it a PATH misconfiguration? Thanks.
> > 
> > You need the hppa-linux assembler installed and available on your PATH.
> 
> The PATH needs to include both of these entries:
> 
> PATH=~/palinux/bin:~/palinux/hppa-linux/bin:$PATH
> 
> I had just first one before.

No, you don't want hppa-linux/bin in there because then the build will only 
use the cross-compiler and will fail if it needs to build any i386 
binaries(like intermediate build tools etc.). As long as you have --host and 
--build set right then the build will do the right thing.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: Re: [parisc-linux] Some progress with WAX_EISA (Who knows about int errupts?)
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dkennedy wrote:
> In the X86 architecture the IO space and the memory space are logically 
> separate.  They are both accessed physically on the same bus but to
> access IO space you have to execute an IO instruction.

Same thing is true for PCI. The CPU instructions to generate I/O port
or MMIO space transactions differ in the details.

> So, why have two separate spaces?  Some of the reasons are:
> - to be different from Motorola
> - to provide a mechanism to add delays for IO while still keeping
>   memory fast (relatively speaking).

- have more address space for RAM
  (ie not used for I/O space; think 16-bit)

> Why do we care about ISA?  Well, EISA was designed to support both ISA
> and EISA cards (in the same slot) so theoretically someone could want
> to put an ISA card into a PA-RISC box.

I'm not sure we can support ISA devices on parisc.
I thought HPUX does not. Anyone know?

> Does any of the above ramblings actually help?

I've learned a few things I didn't know before.
Not sure it helped with the current discussion.

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: Re: [parisc-linux] Some progress with WAX_EISA (Who knows about int
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On Tue, 20 Feb 2001, Grant Grundler wrote:

> 5116@telia.com wrote:
> > Yes, most ISA devices have a probe list which the use when they are
> > compiled in, and if I use modules or a kernel command line option I 
> > want to be able to say io=0x388 when I have set the jumppers on the card
> > for that address.
> 
> The probe list is the problem. We can fixup th command line before
> the driver sees it.

ISA device drivers use inb and outb.  Isn't it possible to provide a ISA
specific inb/outb macro that does the appropriate translation?

-- 
David Kennedy, Technical Account Manager, Linuxcare, Inc.
613.562.9594 tel, 613.562.9304 fax
dkennedy@linuxcare.com, http://www.linuxcare.com/
Linuxcare.  Putting open source to work.






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Subject: Re: [parisc-linux] Some progress with WAX_EISA (Who knows about int errupts?)
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On Tue, Feb 20, 2001 at 09:24:58AM -0800, Grant Grundler wrote:
> Well, I still don't see what nosync does on a single CPU system.

Nothing.  Look at the x86 code:

void disable_irq(unsigned int irq)
{
        disable_irq_nosync(irq);

        if (!local_irq_count(smp_processor_id())) {
                do {
                        barrier();
                } while (irq_desc[irq].status & IRQ_INPROGRESS);
        }
}

if you're in an irq on a UP machine, then local_irq_count will be >0,
so it'll do nothing.  if you're not in an irq, then IRQ_INPROGRESS
can't possibly be set.

-- 
Revolutions do not require corporate support.




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On Tue, Feb 20, 2001 at 09:44:55AM -0800, Grant Grundler wrote:
> Matthew Wilcox wrote:
> > i386 sets IRQ_INPROGRESS before it calls handle_IRQ_event and then
> > clears it after the interrupt handler returns.  I'm not sure whether
> > local interrupts are disabled at this point or not.  It might well be
> > an SMP issue.
> > 
> > I suspect we want to add IRQ_INPROGRESS to our interrupt handlers.
> 
> I think irqs_running() serves that purpose. no?

No.  irqs_running() tells us whether any irqs are in progress.  You have
to grab the global_irq_lock before you call it.  IRQ_INPROGRESS tells us
whether we're in the middle of servicing this particular interrupt.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] Some progress with WAX_EISA (Who knows about int errupts?)
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dkennedy wrote:
> ISA device drivers use inb and outb.  Isn't it possible to provide a ISA
> specific inb/outb macro that does the appropriate translation?

PITA. One has to make sure it (a) works together with definitions
in pci.h and (b) doesn't collide with definitions in pci.h.
Drivers which support devices on multiple busses (eg serial)
may not like it.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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booting an SMP kernel with init=/bin/sh..

init-2.04# eth0: Setting full-duplex based on MII#1 link partner capability of .
pwd                                                                             
/                                                                               
init-2.04# cd home
init-2.04# pwd
/home
init-2.04# ls /
README          boot   etc     initrd   mnt   rr_moved  usr
README.INSTALL  cdrom  floppy  install  proc  sbin      var
bin             dev    home    lib      root  tmp       xc
init-2.04# mount -t proc proc proc
mount: mount point proc does not exist
init-2.04# mount -t proc proc /proc
init-2.04# cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8500 (PCX-W)
cpu MHz         : 440.000000
model           : 9000/785/J5000
model name      : Forte W 2-way
hversion        : 0x00005bd0
sversion        : 0x00000491
I-cache         : 512 KB
D-cache         : 1024 KB (WB)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
BTLB            : not supported
bogomips        : 878.18
processor       : 1
cpu family      : PA-RISC 2.0
cpu             : PA8500 (PCX-W)
cpu MHz         : 440.000000
model           : 9000/785/J5000
model name      : Forte W 2-way
hversion        : 0x00005bd0
sversion        : 0x00000491
I-cache         : 512 KB
D-cache         : 1024 KB (WB)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
BTLB            : not supported
bogomips        : 878.18
init-2.04#

I just have one more little change I need to check in and it should
work for you too.

Don't expect it to be as stable as UP just yet, and if you try to compile
it 64-bit you will need the latest compiler (this is 32-bit, i haven't
actually tested 64-bit yet.)

-- 
Revolutions do not require corporate support.




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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Cannot build 02/18/2001 glibc
Date: Tue, 20 Feb 2001 14:23:06 -0500
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Yes, I had a build error trying to build the rest of GCC. I'll restart
the whole process again and follow your suggestion.

-- 

     Rafael




From - Thu Nov 08 21:16:35 2018
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From: WIES Nicolas <n.wies@wanadoo.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Help wanted on an 715/50 "old Box"
Date: Tue, 20 Feb 2001 23:22:07 +0100
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Hello all,

First I want to congratulate you for this great job.

I have an old Apollo, a 715/50 Scorpio with 64Mb Ram and a Tulip in the EISA 
port and my goal is to turn it into a firewall.

So, since September, every week I upgrade all sources via CVS, and I make a 
kernel and I try to boot. I try via rbootd or from a hard disk, with STI or 
with serial console.

But I never have a commplete boot.

>From the beginnig of the year, I don't remenber exactly when, I have the same 
message with this last lines:

Entry 00100170 first 00100000 n 5

Segment 0 load 00100000 size 1453916 mediaptr 0x1000
Segment 1 load 00264000 size 201128 mediaptr 0x164000
Segment 2 load 00298000 size 214428 mediaptr 0x196000
Segment 3 load 002d0000 size 8192 mediaptr 0x1cb000
Segment 4 load 002fbda8 size 71328 mediaptr 0x1cdda8
branching to kernel entry point 0x00100170


And nothing happen.

I don't understand where can be the problem because the kernel start to load, 
according to theses lines, and freeze.
My configuration is the last nfs-root for booting over the lan, and the 
esiee's fs_hd_sti.tar.gz for booting from the hard disk.
Both are configure for my lan.

Message for the esiee team : Can you add a date at your fs_hd_sti.tar.gz? 
Because we can't know how old is it.


With this message, you will find my .config

Thanks for the help,

	Nicolas

-- 
Adresse de rponse  / return address :
	n.wies@wanadoo.fr

:-)


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--------------Boundary-00=_V4U2WJLBOHAAYC5JREJD--




From - Thu Nov 08 21:16:35 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: WIES Nicolas <n.wies@wanadoo.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Help wanted on an 715/50 "old Box" 2
Date: Tue, 20 Feb 2001 23:26:36 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:10309

Hello all,

First I want to congratulate you for this great job.

I have an old Apollo, a 715/50 Scorpio with 64Mb Ram and a Tulip in the EISA 
port and my goal is to turn it into a firewall.

So, since September, every week I upgrade all sources via CVS, and I make a 
kernel and I try to boot. I try via rbootd or from a hard disk, with STI or 
with serial console.

But I never have a commplete boot.

>From the beginnig of the year, I don't remenber exactly when, I have the same 
message with this last lines:

Entry 00100170 first 00100000 n 5

Segment 0 load 00100000 size 1453916 mediaptr 0x1000
Segment 1 load 00264000 size 201128 mediaptr 0x164000
Segment 2 load 00298000 size 214428 mediaptr 0x196000
Segment 3 load 002d0000 size 8192 mediaptr 0x1cb000
Segment 4 load 002fbda8 size 71328 mediaptr 0x1cdda8
branching to kernel entry point 0x00100170


And nothing happen.

I don't understand where can be the problem because the kernel start to load, 
according to theses lines, and freeze.
My configuration is the last nfs-root for booting over the lan, and the 
esiee's fs_hd_sti.tar.gz for booting from the hard disk.
Both are configure for my lan.

Message for the esiee team : Can you add a date at your fs_hd_sti.tar.gz? 
Because we can't know how old is it.


With this message, you will find my .config

Thanks for the help,

         Nicolas

P.S: I remade it because the .config is in a bad format 

.config :

#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_PARISC32=y
CONFIG_PARISC=y
# CONFIG_UID16 is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# General options
#
# CONFIG_SMP is not set
# CONFIG_KWDB is not set
CONFIG_GSC=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_WAX_EISA=y
# CONFIG_SUPERIO is not set
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_PCI_NAMES=y
CONFIG_CHASSIS_LCD_LED=y

#
# General setup
#
CONFIG_HOTPLUG=y
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Parallel port support
#
CONFIG_PARPORT=y
# CONFIG_PARPORT_PC is not set
# CONFIG_PARPORT_AMIGA is not set
# CONFIG_PARPORT_MFC3 is not set
# CONFIG_PARPORT_ATARI is not set
CONFIG_PARPORT_GSC=y
# CONFIG_PARPORT_SUNBPP is not set
# CONFIG_PARPORT_OTHER is not set
# CONFIG_PARPORT_1284 is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_BLK_DEV_LVM is not set
# CONFIG_LVM_PROC_FS is not set

#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_NETLINK is not set
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=y
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
CONFIG_SCSI_LASI=y
CONFIG_SCSI_ZALON=y
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_NCR53C8XX is not set
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_PQS_PDS is not set
# CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set

#
# PCMCIA SCSI adapter support
#
# CONFIG_SCSI_PCMCIA is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_NET_SB1000 is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
CONFIG_TULIP=y
# CONFIG_DE4X5 is not set
# CONFIG_DGRS is not set
# CONFIG_DM9102 is not set
# CONFIG_EEPRO100 is not set
# CONFIG_EEPRO100_PM is not set
# CONFIG_LNE390 is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_8139TOO is not set
# CONFIG_RTL8129 is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# PCMCIA network device support
#
# CONFIG_NET_PCMCIA is not set

#
# Input core support
#
# CONFIG_INPUT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_HIL=y
CONFIG_SERIAL=y
# CONFIG_SERIAL_CONSOLE is not set
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=y
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_JOYSTICK is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set
CONFIG_PCMCIA_SERIAL=y

#
# PCMCIA character device support
#
# CONFIG_PCMCIA_SERIAL_CS is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_SYSV_FS_WRITE is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
CONFIG_NFS_FS=y
# CONFIG_NFS_V3 is not set
# CONFIG_ROOT_NFS is not set
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
# CONFIG_NLS is not set

#
# Console drivers
#

#
# Frame-buffer support
#
# CONFIG_FB is not set
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y

#
# Sound
#
# CONFIG_SOUND is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y



-- 
Adresse de rponse  / return address :


	n.wies@wanadoo.fr

:-)





From - Thu Nov 08 21:16:35 2018
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From: Alex deVries <alex@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Help wanted on an 715/50 "old Box" 2
Date: Tue, 20 Feb 2001 18:36:06 -0500
Organization: The Puffins at Linuxcare
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To: n.wies@wanadoo.fr
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WIES Nicolas wrote:
> I have an old Apollo, a 715/50 Scorpio with 64Mb Ram and a Tulip in the EISA
> port and my goal is to turn it into a firewall.

It seems very unlikely that's a Tulip chip, since that's a PCI chipset
that can't connect to EISA.  If it's another EISA ethernet chipset,
there's still some WAX work we need to get through.

> But I never have a commplete boot.
> 
> >From the beginnig of the year, I don't remenber exactly when, I have the same
> message with this last lines:
> 
> Entry 00100170 first 00100000 n 5
> 
> Segment 0 load 00100000 size 1453916 mediaptr 0x1000
> Segment 1 load 00264000 size 201128 mediaptr 0x164000
> Segment 2 load 00298000 size 214428 mediaptr 0x196000
> Segment 3 load 002d0000 size 8192 mediaptr 0x1cb000
> Segment 4 load 002fbda8 size 71328 mediaptr 0x1cdda8
> branching to kernel entry point 0x00100170
> 
> And nothing happen.

I've had this too with the exact same machine (without the EISA ethernet
card).  Then I decided to leave it for a LONG time, like 5 minutes, and
it did boot.  Could you try leaving it for something like an hour to see
if you get anything on the console?

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Putting open source to work.




From - Thu Nov 08 21:16:35 2018
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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: Re: [parisc-linux] Help wanted on an 715/50 "old Box" 2
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Xref: news.gmane.org gmane.linux.ports.parisc:10311

The "nothing is happing" ... I know that. But there is something
happening,
but after a long time. On kernels of some days ago, I often have to wait
for
one minute or so, but suddenly the kernel starts printing the well-know
linux kernel style. So try to wait really some minutes....

Cheers
	Christoph P.


WIES Nicolas wrote:
> 
> Hello all,
> 
> First I want to congratulate you for this great job.
> 
> I have an old Apollo, a 715/50 Scorpio with 64Mb Ram and a Tulip in the EISA
> port and my goal is to turn it into a firewall.
> 
> So, since September, every week I upgrade all sources via CVS, and I make a
> kernel and I try to boot. I try via rbootd or from a hard disk, with STI or
> with serial console.
> 
> But I never have a commplete boot.
> 
> >From the beginnig of the year, I don't remenber exactly when, I have the same
> message with this last lines:
> 
> Entry 00100170 first 00100000 n 5
> 
> Segment 0 load 00100000 size 1453916 mediaptr 0x1000
> Segment 1 load 00264000 size 201128 mediaptr 0x164000
> Segment 2 load 00298000 size 214428 mediaptr 0x196000
> Segment 3 load 002d0000 size 8192 mediaptr 0x1cb000
> Segment 4 load 002fbda8 size 71328 mediaptr 0x1cdda8
> branching to kernel entry point 0x00100170
> 
> And nothing happen.
> 
> I don't understand where can be the problem because the kernel start to load,
> according to theses lines, and freeze.
> My configuration is the last nfs-root for booting over the lan, and the
> esiee's fs_hd_sti.tar.gz for booting from the hard disk.
> Both are configure for my lan.
> 
> Message for the esiee team : Can you add a date at your fs_hd_sti.tar.gz?
> Because we can't know how old is it.
> 
> With this message, you will find my .config
> 
> Thanks for the help,
> 
>          Nicolas
> 
> P.S: I remade it because the .config is in a bad format
> 
> .config :
> 
> #
> # Automatically generated by make menuconfig: don't edit
> #
> CONFIG_PARISC32=y
> CONFIG_PARISC=y
> # CONFIG_UID16 is not set
> 
> #
> # Code maturity level options
> #
> CONFIG_EXPERIMENTAL=y
> 
> #
> # Loadable module support
> #
> # CONFIG_MODULES is not set
> 
> #
> # General options
> #
> # CONFIG_SMP is not set
> # CONFIG_KWDB is not set
> CONFIG_GSC=y
> CONFIG_IOMMU_CCIO=y
> CONFIG_GSC_LASI=y
> CONFIG_GSC_WAX=y
> CONFIG_PCI=y
> CONFIG_GSC_DINO=y
> CONFIG_PCI_LBA=y
> CONFIG_WAX_EISA=y
> # CONFIG_SUPERIO is not set
> CONFIG_IOSAPIC=y
> CONFIG_IOMMU_SBA=y
> CONFIG_PCI_NAMES=y
> CONFIG_CHASSIS_LCD_LED=y
> 
> #
> # General setup
> #
> CONFIG_HOTPLUG=y
> CONFIG_NET=y
> CONFIG_SYSVIPC=y
> # CONFIG_BSD_PROCESS_ACCT is not set
> CONFIG_SYSCTL=y
> CONFIG_KCORE_ELF=y
> CONFIG_BINFMT_ELF=y
> CONFIG_BINFMT_SOM=y
> # CONFIG_BINFMT_MISC is not set
> # CONFIG_PM is not set
> 
> #
> # Parallel port support
> #
> CONFIG_PARPORT=y
> # CONFIG_PARPORT_PC is not set
> # CONFIG_PARPORT_AMIGA is not set
> # CONFIG_PARPORT_MFC3 is not set
> # CONFIG_PARPORT_ATARI is not set
> CONFIG_PARPORT_GSC=y
> # CONFIG_PARPORT_SUNBPP is not set
> # CONFIG_PARPORT_OTHER is not set
> # CONFIG_PARPORT_1284 is not set
> 
> #
> # Block devices
> #
> # CONFIG_BLK_DEV_FD is not set
> # CONFIG_BLK_DEV_XD is not set
> # CONFIG_PARIDE is not set
> # CONFIG_BLK_CPQ_DA is not set
> # CONFIG_BLK_CPQ_CISS_DA is not set
> # CONFIG_BLK_DEV_DAC960 is not set
> # CONFIG_BLK_DEV_LOOP is not set
> # CONFIG_BLK_DEV_NBD is not set
> CONFIG_BLK_DEV_RAM=y
> CONFIG_BLK_DEV_RAM_SIZE=4096
> CONFIG_BLK_DEV_INITRD=y
> 
> #
> # Multi-device support (RAID and LVM)
> #
> # CONFIG_MD is not set
> # CONFIG_BLK_DEV_MD is not set
> # CONFIG_MD_LINEAR is not set
> # CONFIG_MD_RAID0 is not set
> # CONFIG_MD_RAID1 is not set
> # CONFIG_MD_RAID5 is not set
> # CONFIG_BLK_DEV_LVM is not set
> # CONFIG_LVM_PROC_FS is not set
> 
> #
> # Networking options
> #
> # CONFIG_PACKET is not set
> # CONFIG_NETLINK is not set
> # CONFIG_NETFILTER is not set
> # CONFIG_FILTER is not set
> CONFIG_UNIX=y
> CONFIG_INET=y
> # CONFIG_IP_MULTICAST is not set
> # CONFIG_IP_ADVANCED_ROUTER is not set
> # CONFIG_IP_PNP is not set
> # CONFIG_NET_IPIP is not set
> # CONFIG_NET_IPGRE is not set
> # CONFIG_INET_ECN is not set
> # CONFIG_SYN_COOKIES is not set
> # CONFIG_IPV6 is not set
> # CONFIG_KHTTPD is not set
> # CONFIG_ATM is not set
> # CONFIG_IPX is not set
> # CONFIG_ATALK is not set
> # CONFIG_DECNET is not set
> # CONFIG_BRIDGE is not set
> # CONFIG_X25 is not set
> # CONFIG_LAPB is not set
> # CONFIG_LLC is not set
> # CONFIG_NET_DIVERT is not set
> # CONFIG_ECONET is not set
> # CONFIG_WAN_ROUTER is not set
> # CONFIG_NET_FASTROUTE is not set
> # CONFIG_NET_HW_FLOWCONTROL is not set
> 
> #
> # QoS and/or fair queueing
> #
> # CONFIG_NET_SCHED is not set
> 
> #
> # SCSI support
> #
> CONFIG_SCSI=y
> CONFIG_BLK_DEV_SD=y
> CONFIG_SD_EXTRA_DEVS=40
> CONFIG_CHR_DEV_ST=y
> # CONFIG_CHR_DEV_OSST is not set
> CONFIG_BLK_DEV_SR=y
> # CONFIG_BLK_DEV_SR_VENDOR is not set
> CONFIG_SR_EXTRA_DEVS=2
> CONFIG_CHR_DEV_SG=y
> # CONFIG_SCSI_DEBUG_QUEUES is not set
> # CONFIG_SCSI_MULTI_LUN is not set
> # CONFIG_SCSI_CONSTANTS is not set
> # CONFIG_SCSI_LOGGING is not set
> 
> #
> # SCSI low-level drivers
> #
> # CONFIG_BLK_DEV_3W_XXXX_RAID is not set
> # CONFIG_SCSI_7000FASST is not set
> # CONFIG_SCSI_ACARD is not set
> # CONFIG_SCSI_AHA152X is not set
> # CONFIG_SCSI_AHA1542 is not set
> # CONFIG_SCSI_AHA1740 is not set
> # CONFIG_SCSI_AIC7XXX is not set
> # CONFIG_SCSI_ADVANSYS is not set
> # CONFIG_SCSI_IN2000 is not set
> # CONFIG_SCSI_AM53C974 is not set
> # CONFIG_SCSI_MEGARAID is not set
> # CONFIG_SCSI_BUSLOGIC is not set
> # CONFIG_SCSI_CPQFCTS is not set
> # CONFIG_SCSI_DMX3191D is not set
> # CONFIG_SCSI_DTC3280 is not set
> # CONFIG_SCSI_EATA is not set
> # CONFIG_SCSI_EATA_DMA is not set
> # CONFIG_SCSI_EATA_PIO is not set
> # CONFIG_SCSI_FUTURE_DOMAIN is not set
> # CONFIG_SCSI_GDTH is not set
> # CONFIG_SCSI_GENERIC_NCR5380 is not set
> CONFIG_SCSI_LASI=y
> CONFIG_SCSI_ZALON=y
> # CONFIG_SCSI_INITIO is not set
> # CONFIG_SCSI_INIA100 is not set
> # CONFIG_SCSI_PPA is not set
> # CONFIG_SCSI_IMM is not set
> # CONFIG_SCSI_NCR53C406A is not set
> # CONFIG_SCSI_NCR53C7xx is not set
> # CONFIG_SCSI_NCR53C8XX is not set
> CONFIG_SCSI_SYM53C8XX=y
> CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
> CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
> CONFIG_SCSI_NCR53C8XX_SYNC=20
> # CONFIG_SCSI_NCR53C8XX_PROFILE is not set
> # CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
> # CONFIG_SCSI_NCR53C8XX_PQS_PDS is not set
> # CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
> # CONFIG_SCSI_PAS16 is not set
> # CONFIG_SCSI_PCI2000 is not set
> # CONFIG_SCSI_PCI2220I is not set
> # CONFIG_SCSI_PSI240I is not set
> # CONFIG_SCSI_QLOGIC_FAS is not set
> # CONFIG_SCSI_QLOGIC_ISP is not set
> # CONFIG_SCSI_QLOGIC_FC is not set
> # CONFIG_SCSI_QLOGIC_1280 is not set
> # CONFIG_SCSI_SIM710 is not set
> # CONFIG_SCSI_SYM53C416 is not set
> # CONFIG_SCSI_DC390T is not set
> # CONFIG_SCSI_T128 is not set
> # CONFIG_SCSI_U14_34F is not set
> # CONFIG_SCSI_DEBUG is not set
> 
> #
> # PCMCIA SCSI adapter support
> #
> # CONFIG_SCSI_PCMCIA is not set
> 
> #
> # Network device support
> #
> CONFIG_NETDEVICES=y
> 
> #
> # ARCnet devices
> #
> # CONFIG_ARCNET is not set
> # CONFIG_DUMMY is not set
> # CONFIG_BONDING is not set
> # CONFIG_EQUALIZER is not set
> # CONFIG_TUN is not set
> # CONFIG_NET_SB1000 is not set
> 
> #
> # Ethernet (10 or 100Mbit)
> #
> CONFIG_NET_ETHERNET=y
> CONFIG_LASI_82596=y
> # CONFIG_NET_VENDOR_3COM is not set
> # CONFIG_LANCE is not set
> # CONFIG_NET_VENDOR_SMC is not set
> # CONFIG_NET_VENDOR_RACAL is not set
> # CONFIG_AT1700 is not set
> # CONFIG_DEPCA is not set
> # CONFIG_HP100 is not set
> # CONFIG_NET_ISA is not set
> CONFIG_NET_PCI=y
> # CONFIG_PCNET32 is not set
> # CONFIG_ADAPTEC_STARFIRE is not set
> # CONFIG_APRICOT is not set
> # CONFIG_CS89x0 is not set
> CONFIG_TULIP=y
> # CONFIG_DE4X5 is not set
> # CONFIG_DGRS is not set
> # CONFIG_DM9102 is not set
> # CONFIG_EEPRO100 is not set
> # CONFIG_EEPRO100_PM is not set
> # CONFIG_LNE390 is not set
> # CONFIG_NATSEMI is not set
> # CONFIG_NE2K_PCI is not set
> # CONFIG_NE3210 is not set
> # CONFIG_ES3210 is not set
> # CONFIG_8139TOO is not set
> # CONFIG_RTL8129 is not set
> # CONFIG_SIS900 is not set
> # CONFIG_EPIC100 is not set
> # CONFIG_SUNDANCE is not set
> # CONFIG_TLAN is not set
> # CONFIG_VIA_RHINE is not set
> # CONFIG_WINBOND_840 is not set
> # CONFIG_HAPPYMEAL is not set
> # CONFIG_NET_POCKET is not set
> 
> #
> # Ethernet (1000 Mbit)
> #
> # CONFIG_ACENIC is not set
> # CONFIG_HAMACHI is not set
> # CONFIG_YELLOWFIN is not set
> # CONFIG_SK98LIN is not set
> # CONFIG_FDDI is not set
> # CONFIG_HIPPI is not set
> # CONFIG_PLIP is not set
> # CONFIG_PPP is not set
> # CONFIG_SLIP is not set
> 
> #
> # Wireless LAN (non-hamradio)
> #
> # CONFIG_NET_RADIO is not set
> 
> #
> # Token Ring devices
> #
> # CONFIG_TR is not set
> # CONFIG_NET_FC is not set
> # CONFIG_RCPCI is not set
> # CONFIG_SHAPER is not set
> 
> #
> # Wan interfaces
> #
> # CONFIG_WAN is not set
> 
> #
> # PCMCIA network device support
> #
> # CONFIG_NET_PCMCIA is not set
> 
> #
> # Input core support
> #
> # CONFIG_INPUT is not set
> 
> #
> # Character devices
> #
> CONFIG_VT=y
> CONFIG_VT_CONSOLE=y
> CONFIG_GSC_PS2=y
> CONFIG_HIL=y
> CONFIG_SERIAL=y
> # CONFIG_SERIAL_CONSOLE is not set
> CONFIG_SERIAL_GSC=y
> # CONFIG_SERIAL_EXTENDED is not set
> # CONFIG_SERIAL_NONSTANDARD is not set
> CONFIG_UNIX98_PTYS=y
> CONFIG_UNIX98_PTY_COUNT=256
> CONFIG_PRINTER=y
> # CONFIG_LP_CONSOLE is not set
> # CONFIG_PPDEV is not set
> 
> #
> # I2C support
> #
> # CONFIG_I2C is not set
> 
> #
> # Mice
> #
> # CONFIG_BUSMOUSE is not set
> # CONFIG_MOUSE is not set
> 
> #
> # Joysticks
> #
> # CONFIG_JOYSTICK is not set
> # CONFIG_QIC02_TAPE is not set
> 
> #
> # Watchdog Cards
> #
> # CONFIG_WATCHDOG is not set
> CONFIG_GENRTC=y
> # CONFIG_INTEL_RNG is not set
> # CONFIG_NVRAM is not set
> # CONFIG_RTC is not set
> # CONFIG_DTLK is not set
> # CONFIG_R3964 is not set
> # CONFIG_APPLICOM is not set
> 
> #
> # Ftape, the floppy tape device driver
> #
> # CONFIG_FTAPE is not set
> # CONFIG_AGP is not set
> # CONFIG_DRM is not set
> CONFIG_PCMCIA_SERIAL=y
> 
> #
> # PCMCIA character device support
> #
> # CONFIG_PCMCIA_SERIAL_CS is not set
> 
> #
> # Multimedia devices
> #
> # CONFIG_VIDEO_DEV is not set
> 
> #
> # File systems
> #
> # CONFIG_QUOTA is not set
> # CONFIG_AUTOFS_FS is not set
> # CONFIG_AUTOFS4_FS is not set
> # CONFIG_ADFS_FS is not set
> # CONFIG_ADFS_FS_RW is not set
> # CONFIG_AFFS_FS is not set
> # CONFIG_HFS_FS is not set
> # CONFIG_BFS_FS is not set
> # CONFIG_FAT_FS is not set
> # CONFIG_MSDOS_FS is not set
> # CONFIG_UMSDOS_FS is not set
> # CONFIG_VFAT_FS is not set
> # CONFIG_EFS_FS is not set
> # CONFIG_JFFS_FS is not set
> # CONFIG_CRAMFS is not set
> # CONFIG_RAMFS is not set
> CONFIG_ISO9660_FS=y
> # CONFIG_JOLIET is not set
> # CONFIG_MINIX_FS is not set
> # CONFIG_NTFS_FS is not set
> # CONFIG_NTFS_RW is not set
> # CONFIG_HPFS_FS is not set
> CONFIG_PROC_FS=y
> # CONFIG_DEVFS_FS is not set
> # CONFIG_DEVFS_MOUNT is not set
> # CONFIG_DEVFS_DEBUG is not set
> # CONFIG_DEVPTS_FS is not set
> # CONFIG_QNX4FS_FS is not set
> # CONFIG_QNX4FS_RW is not set
> # CONFIG_ROMFS_FS is not set
> CONFIG_EXT2_FS=y
> # CONFIG_SYSV_FS is not set
> # CONFIG_SYSV_FS_WRITE is not set
> # CONFIG_UDF_FS is not set
> # CONFIG_UDF_RW is not set
> # CONFIG_UFS_FS is not set
> # CONFIG_UFS_FS_WRITE is not set
> 
> #
> # Network File Systems
> #
> # CONFIG_CODA_FS is not set
> CONFIG_NFS_FS=y
> # CONFIG_NFS_V3 is not set
> # CONFIG_ROOT_NFS is not set
> # CONFIG_NFSD is not set
> # CONFIG_NFSD_V3 is not set
> CONFIG_SUNRPC=y
> CONFIG_LOCKD=y
> # CONFIG_SMB_FS is not set
> # CONFIG_NCP_FS is not set
> # CONFIG_NCPFS_PACKET_SIGNING is not set
> # CONFIG_NCPFS_IOCTL_LOCKING is not set
> # CONFIG_NCPFS_STRONG is not set
> # CONFIG_NCPFS_NFS_NS is not set
> # CONFIG_NCPFS_OS2_NS is not set
> # CONFIG_NCPFS_SMALLDOS is not set
> # CONFIG_NCPFS_NLS is not set
> # CONFIG_NCPFS_EXTRAS is not set
> 
> #
> # Partition Types
> #
> # CONFIG_PARTITION_ADVANCED is not set
> CONFIG_MSDOS_PARTITION=y
> # CONFIG_SMB_NLS is not set
> # CONFIG_NLS is not set
> 
> #
> # Console drivers
> #
> 
> #
> # Frame-buffer support
> #
> # CONFIG_FB is not set
> CONFIG_STI_CONSOLE=y
> CONFIG_DUMMY_CONSOLE=y
> CONFIG_DUMMY_CONSOLE=y
> CONFIG_FBCON=y
> # CONFIG_FBCON_FONTWIDTH8_ONLY is not set
> CONFIG_FONT_8x8=y
> CONFIG_FONT_8x16=y
> CONFIG_FONT_6x11=y
> CONFIG_FONT_SUN12x22=y
> 
> #
> # Sound
> #
> # CONFIG_SOUND is not set
> 
> #
> # Kernel hacking
> #
> CONFIG_MAGIC_SYSRQ=y
> 
> --
> Adresse de rponse  / return address :
> 
>         n.wies@wanadoo.fr
> 
> :-)
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




From - Thu Nov 08 21:16:35 2018
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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Cannot build 02/18/2001 glibc
Date: Wed, 21 Feb 2001 01:10:36 -0500
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Matt Taggart wrote:
> 
> "Rafael E. Herrera" writes...
> 
> > Alan Modra wrote:
> > >
> > > On Mon, 19 Feb 2001, Rafael E. Herrera wrote:
> > >
> > > > checking for assembler line separator... *** You need a newer assembler
> > > > to compile glibc
> > > >[snip]
> > > >  /usr/i486-suse-linux/bin/as -V -Qy -v -o conftest.o conftest.s
> > >
> > > Oops, this is an x86 assembler.
> > >
> > > > The binaries called and the version numbers are shown. Do I need to
> > > > upgrade the assembler or is it a PATH misconfiguration? Thanks.
> > >
> > > You need the hppa-linux assembler installed and available on your PATH.
> >
> > The PATH needs to include both of these entries:
> >
> > PATH=~/palinux/bin:~/palinux/hppa-linux/bin:$PATH
> >
> > I had just first one before.
> 
> No, you don't want hppa-linux/bin in there because then the build will only
> use the cross-compiler and will fail if it needs to build any i386
> binaries(like intermediate build tools etc.). As long as you have --host and
> --build set right then the build will do the right thing.

If I use these to build glibc library:

export MACH=i386-linux
export DEST=~/parisk/palinux
export ROOT=~/parisk
PATH=~/parisk/palinux/bin:$PATH

$ROOT/source/glibc/configure --prefix=$DEST/hppa-linux --build=$MACH \
--host=hppa-linux --target=hppa-linux \
--with-headers=$ROOT/source/linux/include --disable-profile \
--without-cvs --enable-add-ons

I get the same error reported initially. 'configure' does not use/find
the cross compiler. From a previous post, If I use this instead:

HOSTCC=gcc CC=hppa-linux-gcc $ROOT/source/glibc/configure
--prefix=$DEST/hppa-linux --build=$MACH \
--host=hppa-linux --target=hppa-linux \
--with-headers=$ROOT/source/linux/include --disable-profile \
--without-cvs --enable-add-ons

Configure doesn't fail and one can start building. I did not have this
problem a couple of weeks ago when I first tried this, I used snapshots
(from early february, before the newest were available -- they were zero
length) that allowed me to build a kernel image  and boot my machine. I
run into other problems, but I'll post questions about them later if I
still have them with these updated sources.

I've looked briefly at the main configure script and compared it to the
last revision, but cannot figure out why it uses the x86 assembler.
Perhaps the mantainer can resolve this.

Thanks
-- 
     Rafael




From - Thu Nov 08 21:16:35 2018
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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Warnings compiling the CVS kernel
Date: Wed, 21 Feb 2001 02:05:05 -0500
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After building the cross-compiler in an x86 machine, I get warning
message like this one for most of the sources when compiling the kernel:

hppa-linux-gcc -D__KERNEL__
-I/usr1/users/raffo/parisk/source/linux/include -Wall
-Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing
-D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mschedule=7200 -mdisable-fpregs
-fno-strict-aliasing -ffunction-sections    -c -o hosts.o hosts.c
In file included from
/usr1/users/raffo/parisk/source/linux/include/linux/fs.h:23,
                 from
/usr1/users/raffo/parisk/source/linux/include/linux/capability.h:17,
                 from
/usr1/users/raffo/parisk/source/linux/include/linux/binfmts.h:5,
                 from
/usr1/users/raffo/parisk/source/linux/include/linux/sched.h:9,
                 from
/usr1/users/raffo/parisk/source/linux/include/linux/blkdev.h:5,
                 from
/usr1/users/raffo/parisk/source/linux/include/linux/blk.h:4,
                 from hosts.c:29:
/usr1/users/raffo/parisk/source/linux/include/linux/string.h:27:
warning: conflicting types for built-in function `strncpy'
/usr1/users/raffo/parisk/source/linux/include/linux/string.h:33:
warning: conflicting types for built-in function `strncat'
/usr1/users/raffo/parisk/source/linux/include/linux/string.h:39:
warning: conflicting types for built-in function `strncmp'
/usr1/users/raffo/parisk/source/linux/include/linux/string.h:61:
warning: conflicting types for built-in function `memset'
/usr1/users/raffo/parisk/source/linux/include/linux/string.h:64:
warning: conflicting types for built-in function `memcpy'
/usr1/users/raffo/parisk/source/linux/include/linux/string.h:73:
warning: conflicting types for built-in function `memcmp'

The compilation succeeds but the boot will crash here:

[...]
POSIX conformance testing by UNIFIX



Dumping Stack from 14000000 to 14000240:

Dumping Stack from 1026e000 to 1026e700:
e000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e020 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e040 00000000 00000000 00000000 0027a000 00000000 00000000 00000000
00000000
e060 00000000 00000000 00000000 0010c848 00000000 00000000 00000000
00000000
e080 0000ff00 00000000 10105c38 14000000 00000000 102cc000 1028060c
13fc8000
e0a0 14000000 14000000 0004000e 10295888 001a5a59 000ff000 f000013c
00000000
e0c0 00000000 08000059 00000004 00000000 10280620 00000002 0000000f
1027b324
e0e0 00000000 00000000 102cc000 10266000 1027b324 04000000 14000240
1027b000
e100 00000006 ffffffff 00000000 00000000 00000000 00000000 00000000
00000000
e120 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e140 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e160 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e180 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e1c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e1e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e200 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e220 00000000 00000000 101151e8 101151e8 00000000 00000000 00000000
00000000
e240 00000000 00000000 00000000 00000000 0000001d 6fc10080 00000000
14000000
e260 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e280 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e2a0 00000000 00000000 00000000 1010670c 00000000 00000000 00000000
00000000
e2c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e2e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e300 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e320 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e340 00000000 00000000 f0003e5c 00272000 00281000 f0008c98 00000000
00000000
e360 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e380 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e3a0 00000000 00000000 00000000 10102784 00000000 00000000 00000000
00000000
e3c0 00000000 00000000 00000001 1026e080 00000000 00000000 00000000
00000000
e3e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e400 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e420 00000000 00000000 00000000 10102ba8 00000000 00000000 00000000
00000000
e440 1023a690 00000001 1026e080 00000000 00000000 00000000 00000000
00000000
e460 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e480 00000000 00000000 00000000 00000000 00000008 14000240 14000000
1023a830
e4a0 00000000 00000000 00000000 10102b04 00000000 00000000 00000000
00000000
e4c0 0004000e 102ea000 10102ba8 14000000 14000240 1023a800 00000000
00000002
e4e0 19a10000 00000005 00000000 00000005 00000004 00000006 00000008
00000006
e500 1026e080 00000002 00000000 102ea000 00000000 00000060 00000001
00000002
e520 00000001 00000001 1027b484 10266000 0000002a 015752a0 1026e700
00000060
e540 0000001f 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e560 00000000 00000000 00000000 00000000 00000000 00000000 40800000
00000000
e580 ffd2e740 ffd2e740 7f7fffff ffffffff 7f7fffff ffffffff 00000000
00000000
e5a0 00000000 00000000 41800000 00000000 00000010 00000010 00000000
00000000
e5c0 ffd2e740 ffd2e740 41000000 00000000 40800000 00000000 ffd2e740
ffd2e740
e5e0 41000000 00000000 ffd2e740 ffd2e740 40800000 00000000 41000000
00000000
e600 40300000 00000000 40200000 00000000 40200000 00000000 41800000
ffd2e740
e620 40000000 00000000 40000000 00000000 40800000 00000000 41000000
00000000
e640 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e660 00000000 00000000 10102b10 10102b14 00000000 00000000 00000000
00000000
e680 00000000 00000000 00000000 00000000 00000000 0c701093 00000000
14000008
e6a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e6c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
e6e0 00000000 00000000 00000000 10106e3c 00000000 00000000 00000000
00000000

Kernel Fault: Code=15 regs=1026e4c0 (Addr=14000008)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110
r0-3     00000000 102ea000 10102ba8 14000000
r4-7     14000240 1023a800 00000000 00000002
r8-11    19a10000 00000005 00000000 00000005
r12-15   00000004 00000006 00000008 00000006
r16-19   1026e080 00000002 00000000 102ea000
r20-23   00000000 00000060 00000001 00000002
r24-27   00000001 00000001 1027b484 10266000
r28-31   0000002a 015752a0 1026e700 00000060
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10102b10 10102b14
 IIR: 0c701093    ISR: 00000000  IOR: 14000008
ORIG_R28: 00000000


The kernel was configured with 'make oldconfig'.
-- 
     Rafael




From - Thu Nov 08 21:16:35 2018
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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Warnings compiling the CVS kernel
Date: Wed, 21 Feb 2001 02:10:07 -0500
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(My first post was line wrapped, here a re-post)

After building the cross-compiler in an x86 machine, I get warning
message like this one for most of the sources when compiling the kernel:

hppa-linux-gcc -D__KERNEL__
-I/usr1/users/raffo/parisk/source/linux/include -Wall
-Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing
-D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mschedule=7200 -mdisable-fpregs
-fno-strict-aliasing -ffunction-sections    -c -o hosts.o hosts.c
In file included from
/usr1/users/raffo/parisk/source/linux/include/linux/fs.h:23,
                 from
/usr1/users/raffo/parisk/source/linux/include/linux/capability.h:17,
                 from
/usr1/users/raffo/parisk/source/linux/include/linux/binfmts.h:5,
                 from
/usr1/users/raffo/parisk/source/linux/include/linux/sched.h:9,
                 from
/usr1/users/raffo/parisk/source/linux/include/linux/blkdev.h:5,
                 from
/usr1/users/raffo/parisk/source/linux/include/linux/blk.h:4,
                 from hosts.c:29:
/usr1/users/raffo/parisk/source/linux/include/linux/string.h:27:
warning: conflicting types for built-in function `strncpy'
/usr1/users/raffo/parisk/source/linux/include/linux/string.h:33:
warning: conflicting types for built-in function `strncat'
/usr1/users/raffo/parisk/source/linux/include/linux/string.h:39:
warning: conflicting types for built-in function `strncmp'
/usr1/users/raffo/parisk/source/linux/include/linux/string.h:61:
warning: conflicting types for built-in function `memset'
/usr1/users/raffo/parisk/source/linux/include/linux/string.h:64:
warning: conflicting types for built-in function `memcpy'
/usr1/users/raffo/parisk/source/linux/include/linux/string.h:73:
warning: conflicting types for built-in function `memcmp'

The compilation succeeds but the boot will crash here:

[...]
POSIX conformance testing by UNIFIX


Dumping Stack from 14000000 to 14000240:

Dumping Stack from 1026e000 to 1026e700:
e000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e020 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e040 00000000 00000000 00000000 0027a000 00000000 00000000 00000000 00000000
e060 00000000 00000000 00000000 0010c848 00000000 00000000 00000000 00000000
e080 0000ff00 00000000 10105c38 14000000 00000000 102cc000 1028060c 13fc8000
e0a0 14000000 14000000 0004000e 10295888 001a5a59 000ff000 f000013c 00000000
e0c0 00000000 08000059 00000004 00000000 10280620 00000002 0000000f 1027b324
e0e0 00000000 00000000 102cc000 10266000 1027b324 04000000 14000240 1027b000
e100 00000006 ffffffff 00000000 00000000 00000000 00000000 00000000 00000000
e120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e1c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e1e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e200 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e220 00000000 00000000 101151e8 101151e8 00000000 00000000 00000000 00000000
e240 00000000 00000000 00000000 00000000 0000001d 6fc10080 00000000 14000000
e260 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e280 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e2a0 00000000 00000000 00000000 1010670c 00000000 00000000 00000000 00000000
e2c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e2e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e300 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e320 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e340 00000000 00000000 f0003e5c 00272000 00281000 f0008c98 00000000 00000000
e360 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e380 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e3a0 00000000 00000000 00000000 10102784 00000000 00000000 00000000 00000000
e3c0 00000000 00000000 00000001 1026e080 00000000 00000000 00000000 00000000
e3e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e400 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e420 00000000 00000000 00000000 10102ba8 00000000 00000000 00000000 00000000
e440 1023a690 00000001 1026e080 00000000 00000000 00000000 00000000 00000000
e460 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e480 00000000 00000000 00000000 00000000 00000008 14000240 14000000 1023a830
e4a0 00000000 00000000 00000000 10102b04 00000000 00000000 00000000 00000000
e4c0 0004000e 102ea000 10102ba8 14000000 14000240 1023a800 00000000 00000002
e4e0 19a10000 00000005 00000000 00000005 00000004 00000006 00000008 00000006
e500 1026e080 00000002 00000000 102ea000 00000000 00000060 00000001 00000002
e520 00000001 00000001 1027b484 10266000 0000002a 015752a0 1026e700 00000060
e540 0000001f 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e560 00000000 00000000 00000000 00000000 00000000 00000000 40800000 00000000
e580 ffd2e740 ffd2e740 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
e5a0 00000000 00000000 41800000 00000000 00000010 00000010 00000000 00000000
e5c0 ffd2e740 ffd2e740 41000000 00000000 40800000 00000000 ffd2e740 ffd2e740
e5e0 41000000 00000000 ffd2e740 ffd2e740 40800000 00000000 41000000 00000000
e600 40300000 00000000 40200000 00000000 40200000 00000000 41800000 ffd2e740
e620 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
e640 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e660 00000000 00000000 10102b10 10102b14 00000000 00000000 00000000 00000000
e680 00000000 00000000 00000000 00000000 00000000 0c701093 00000000 14000008
e6a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e6c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e6e0 00000000 00000000 00000000 10106e3c 00000000 00000000 00000000 00000000


Kernel Fault: Code=15 regs=1026e4c0 (Addr=14000008)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110
r0-3     00000000 102ea000 10102ba8 14000000
r4-7     14000240 1023a800 00000000 00000002
r8-11    19a10000 00000005 00000000 00000005
r12-15   00000004 00000006 00000008 00000006
r16-19   1026e080 00000002 00000000 102ea000
r20-23   00000000 00000060 00000001 00000002
r24-27   00000001 00000001 1027b484 10266000
r28-31   0000002a 015752a0 1026e700 00000060
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10102b10 10102b14
 IIR: 0c701093    ISR: 00000000  IOR: 14000008
ORIG_R28: 00000000


The kernel was configured with 'make oldconfig'.
-- 
     Rafael




From - Thu Nov 08 21:16:36 2018
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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Warnings compiling the CVS kernel
Date: Wed, 21 Feb 2001 02:17:26 -0500
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Perhaps this may give you more information on the machine I'm using.

Rafael
--

palo ipl raffo@prod2 Wed Feb 21 01:25:46 EST 2001
0/vmlinux 2557795 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs
nfsroot=192.168.0.2:/tftpboot/parisc console=ttyS0'
Kernel: partition 0 file /vmlinux
ELF32 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 1464692 mediaptr 0x1000
Segment 1 load 00266000 size 181464 mediaptr 0x167000
Segment 2 load 00294000 size 218968 mediaptr 0x194000
Segment 3 load 002cc000 size 8192 mediaptr 0x1ca000
Segment 4 load 002fa688 size 74224 mediaptr 0x1cc688
branching to kernel entry point 0x00100000
PDC Console Initialized
The 32-bit Kernel has started...
FP[0] enabled: Rev 1 Model 9
Free memory starts at: 0x1030d000
start_parisc(0x64d24,0x64d24,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs
nfsroot=192.168.0.2:/tftpboot/parisc console=ttyS0'
PALO initrd 0-0
model   00003160 00000481 00000000 00000000 77b82c78 ffffffff 00000004
0000000a 0000000a
vers    00000013
CPUID   vers 0 rev 0
model   9000/715
Searching for devices in PDC firmware... processor hpa 0xfffbe000
 an older box...
Using Alex's odd 715/old exception, onboard graphics won't be
inventoried!
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0,
0x77, 0x0, 0x0
2. Scorpio Sr. Core BA (11) at 0xf082f000, versions 0x19, 0x0, 0x70,
0x0, 0x0
3. Scorpio Sr. Core SCSI (10) at 0xf0825000, versions 0x19, 0x0, 0x71,
0x0, 0x0
4. Scorpio Sr. Core LAN (802.3) (10) at 0xf0826000, versions 0x19, 0x0,
0x72, 0x0, 0x0
5. Scorpio Sr. Core HIL (10) at 0xf0821000, versions 0x19, 0x0, 0x73,
0x0, 0x0
6. Scorpio Sr. Core RS-232 (10) at 0xf0823000, versions 0x19, 0x0, 0x75,
0x0, 0x0
7. Scorpio Sr. Core RS-232 (10) at 0xf0822000, versions 0x19, 0x0, 0x75,
0x0, 0x0
8. Scorpio Sr. Core Centronics (10) at 0xf0824000, versions 0x19, 0x0,
0x74, 0x0, 0x0
9. Scorpio Sr. Audio (10) at 0xf1000000, versions 0x19, 0x0, 0x7b, 0x0,
0x0
10. Scorpio Sr. EISA BA (11) at 0xfc000000, versions 0x19, 0x0, 0x76,
0x0, 0x0
11. Scorpio Sr.(715/75) (0) at 0xfffbe000, versions 0x316, 0x0, 0x4,
0x0, 0x81
12. Scorpio Sr. (1) at 0xfffbf000, versions 0x27, 0x0, 0x9, 0x0, 0x0
That's a total of 12 devices.
CPU(s): 1 x PA7100 (PCX-T) at 75.000000 MHz
Linux version 2.4.0 (raffo@prod2) (gcc version 2.97 20010128
(experimental)) #1 Wed Feb 21 02:04:36 EST 2001
free_bootmem(0x30d800, 0x3cf2800)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 16384
zone(0): 8192 pages.
zone(1): 8192 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/nfs
nfsroot=192.168.0.2:/tftpboot/parisc console=ttyS0
Calibrating delay loop... 74.75 BogoMIPS
Memory: 61252k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX

[error messages from previous post]




From - Thu Nov 08 21:16:36 2018
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Warnings compiling the CVS kernel
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To: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
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Xref: news.gmane.org gmane.linux.ports.parisc:10316

On Wed, 21 Feb 2001, Rafael E. Herrera wrote:

> After building the cross-compiler in an x86 machine, I get warning
> message like this one for most of the sources when compiling the kernel:
> 
> /usr1/users/raffo/parisk/source/linux/include/linux/string.h:27:
> warning: conflicting types for built-in function `strncpy'

These are a result of the string functions being declared in the
kernel header file to take an "unsigned long" length arg (via
__kernel_size_t)

> The compilation succeeds but the boot will crash here:
> 
> [...]
> POSIX conformance testing by UNIFIX

Yeah, same result here (except I get a reboot).  I'm not sure yet whether
this is due to bugs in gcc or the kernel.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.





From - Thu Nov 08 21:16:36 2018
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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Cannot build 02/18/2001 glibc
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> I've looked briefly at the main configure script and compared it to the
> last revision, but cannot figure out why it uses the x86 assembler.
> Perhaps the mantainer can resolve this.

After having problems the first time, did you start from a fresh
directory?  If config.cache exists, you'll pick up old values.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.





From - Thu Nov 08 21:16:36 2018
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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Cannot build 02/18/2001 glibc
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Xref: news.gmane.org gmane.linux.ports.parisc:10318

Alan Modra wrote:
> 
> > I've looked briefly at the main configure script and compared it to the
> > last revision, but cannot figure out why it uses the x86 assembler.
> > Perhaps the mantainer can resolve this.
> 
> After having problems the first time, did you start from a fresh
> directory?  If config.cache exists, you'll pick up old values.

Yes, I scrapped everything and began with binutils. I use a separate
directory for building each package (as indicated in the recipe) and
removed them. Any config.cache went away with those dirs.

Let me know if there is something else I can do to fix this.
-- 
     Rafael




From - Thu Nov 08 21:16:36 2018
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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Warnings compiling the CVS kernel
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Alan Modra wrote:
> On Wed, 21 Feb 2001, Rafael E. Herrera wrote:
> > After building the cross-compiler in an x86 machine, I get warning
> > message like this one for most of the sources when compiling the kernel:
> >
> > /usr1/users/raffo/parisk/source/linux/include/linux/string.h:27:
> > warning: conflicting types for built-in function `strncpy'
> 
> These are a result of the string functions being declared in the
> kernel header file to take an "unsigned long" length arg (via
> __kernel_size_t)

Doesn't sound like an issue then.

> > The compilation succeeds but the boot will crash here:
> >
> > [...]
> > POSIX conformance testing by UNIFIX
> 
> Yeah, same result here (except I get a reboot).  I'm not sure yet whether
> this is due to bugs in gcc or the kernel.

Let me know I there is something I can try. Thanks

-- 
     Rafael




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From: "Bryan W. Headley" <bheadley@interaccess.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] CD boot help with 735
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SGksDQoNCkFtIHRyeWluZyB0byBib290IHRoZSBDRFJPTSwgYnV0IGtlZXAgZ2V0dGluZyAi
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ZXkgLSBiaGVhZGxleUBpbnRlcmFjY2Vzcy5jb20NCg0KDQo=




From - Thu Nov 08 21:16:36 2018
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From: "Jim Buttafuoco" <jim@tylerdrive.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] CD boot help with 735
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Bryan,

What CD are you using.  I couldn't get the .5 version to work on my 
735.  I did create my own kernel and booted via the network. Let me 
know if you need any help.

Jim

> Hi,
> 
> Am trying to boot the CDROM, but keep getting "ENTRY_INIT status = -4"
> and a few lines of hex. Never
> 
> 1) The above occurs on the console, routed to built-in video. Should I
> have done something to redirect console messages to
>     COMM port beforehand? Have a laptop attached to be the serial
> console, but obviously to no effect
> 2) Just being stupid: 9600 8 N 1, COM port A for the serial console,
> right?
> 3) Should I try, "b scsi.6.0 IPL" or without the IPL?
> 
> This is on a 735 box. Your help much appreciated.
> 
> 
> --
> ____               .:.                 ____
> Bryan W. Headley - bheadley@interaccess.com
> 
> 
> jsb&#382;fj)b&#382;
	bZ+X&#352;l&#8211;&#352;&#8211;)+&#8218;m&#8211;+-Z+X&#8218;/&#352;j)
fj&#352;b?&#352;{
> 
> 






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"Bryan W. Headley" wrote:
> Hi,
> 
> Am trying to boot the CDROM, but keep getting "ENTRY_INIT status = -4"
> and a few lines of hex. Never
> 
> 1) The above occurs on the console, routed to built-in video. Should I
> have done something to redirect console messages to
>     COMM port beforehand? Have a laptop attached to be the serial
> console, but obviously to no effect

Shouldn't matter. Where PDC thinks the console is and where linux
thinks it is can be two different places.

> 2) Just being stupid: 9600 8 N 1, COM port A for the serial console,
> right?

yes. Assuming linux can find and support port A.

> 3) Should I try, "b scsi.6.0 IPL" or without the IPL?

Probably not. typically scsi.6.0 is the built-in hard disk.
Do "sea scsi" and see what shows up. CD-ROM is normally SCSI ID 2.
(Though it doesn't have to be).

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:16:36 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] Prefetch macros for PA-RISC
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on PA, we have prefetch for read and prefetch for write.  They're encoded
as loads to the 0 register.  prefetch read is ldd (load 64-bit quantity)
and prefetch-write is ldw (load 32-bit quantity).

Off the top of my head, untested (and someone on the list please correct
me if I'm wrong):

#define prefetch_read(addr) __asm__("ldd 0(%%sr0, %0), %%r0" : : "r" (addr))
#define prefetch_write(addr) __asm__("ldw 0(%%sr0, %0), %%r0" : : "r" (addr))

i think these are only defined for PA 2.0, so we might need to be more
clever than this.

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] Documentation/parisc/unwritten
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There's a file which documents functions which are allegedly unwritten.
It's not exactly up to date.  Would someone like to volunteer to go
through this file and commit each function which is actually still
unwritten to the bug tracking system?

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:16:36 2018
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Matthew Wilcox wrote:
> 
> on PA, we have prefetch for read and prefetch for write.  They're encoded
> as loads to the 0 register.  prefetch read is ldd (load 64-bit quantity)
> and prefetch-write is ldw (load 32-bit quantity).
> 
> Off the top of my head, untested (and someone on the list please correct
> me if I'm wrong):
> 
> #define prefetch_read(addr) __asm__("ldd 0(%%sr0, %0), %%r0" : : "r" (addr))
> #define prefetch_write(addr) __asm__("ldw 0(%%sr0, %0), %%r0" : : "r" (addr))

Will assuming SR0 work for user space?
Will assuming SR0 work for zero-copy patch in the (near?) future?

"addr" has alignment restrictions. Not sure if you want
to encode those as runtime checks or not.

> i think these are only defined for PA 2.0, so we might need to be more
> clever than this.

My reading of the "PA 2.0 Enhancements" in the "PA-RISC 2.0 Architecture"
is pretty clear this is for PA2.0 CPU's only. #ifdef __LP64__ is needed.

I'd like to encourage use prefetching on bcopy/checksum type loops.
It will help perf *alot*.

grant
 
Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: "Jim Hull" <jim_hull@hp.com>
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Subject: RE: [parisc-linux] Prefetch macros for PA-RISC
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Matthew, you wrote:

> on PA, we have prefetch for read and prefetch for write.  They're encoded
> as loads to the 0 register.  prefetch read is ldd (load 64-bit quantity)
> and prefetch-write is ldw (load 32-bit quantity).

Actually, Table 6-10 in the PA-RISC 2.0 book is wrong -- LDW is prefetch
for read, LDD is prefetch for write.  See this erratum description:

http://devresource.hp.com/devresource/Docs/Refs/PA2_0/updates/e1.html

 -- Jim





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From - Thu Nov 08 21:16:37 2018
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From: "Jim Buttafuoco" <jim@tylerdrive.org>
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Subject: Re: [parisc-linux] CD boot help with 735
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Bryan,

   Get the latest PALO tree.  The directions are in the README file.  I 
found if you follow the kernel building instructions from the parisc-
linux.org web site, you can't go wrong....

Jim

> Jim Buttafuoco wrote:
> 
> > Bryan,
> >
> > What CD are you using.  I couldn't get the .5 version to work on my
> > 735.  I did create my own kernel and booted via the network. Let me
> > know if you need any help.
> >
> 
> I'll read up on how to do that. I am indeed using the .5 version.
> 
> I don't know what the bootstrap requirements are a network boot. 
Let's assume that making a CD is easier. I can
> build a kernel on the x86 and put the new kernel onto a cd image. 
Question: what's the parameters to mkisofs to
> specify the boot image? El Toritto? Generic boot? That Sun boot track 
thing?
> 
> (In the meantime, I'll read up on network booting)
> 
> >
> > Jim
> >
> > > Hi,
> > >
> > > Am trying to boot the CDROM, but keep getting "ENTRY_INIT status 
= -4"
> > > and a few lines of hex. Never
> > >
> > > 1) The above occurs on the console, routed to built-in video. 
Should I
> > > have done something to redirect console messages to
> > >     COMM port beforehand? Have a laptop attached to be the serial
> > > console, but obviously to no effect
> > > 2) Just being stupid: 9600 8 N 1, COM port A for the serial 
console,
> > > right?
> > > 3) Should I try, "b scsi.6.0 IPL" or without the IPL?
> > >
> > > This is on a 735 box. Your help much appreciated.
> > >
> > >
> > > --
> > > ____               .:.                 ____
> > > Bryan W. Headley - bheadley@interaccess.com
> > >
> > >
> > > jsb&#382;fj)b&#382;
> >         bZ+X&#352;l&#8211;&#352;&#8211;)
+&#8218;m&#8211;+-Z+X&#8218;/&#352;j)
> > fj&#352;b??&#352;{
> > >
> > >
> 
> --
> ____               .:.                 ____
> Bryan W. Headley - bheadley@interaccess.com
> 
> 
> 
> 






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From: Chris Moore <cmoore@cancun.rose.hp.com>
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> > > 3) Should I try, "b scsi.6.0 IPL" or without the IPL?
> >
> > Probably not. typically scsi.6.0 is the built-in hard disk.
> > Do "sea scsi" and see what shows up. CD-ROM is normally SCSI ID 2.
> > (Though it doesn't have to be).
> >
> 
> No, scsi.6.0 is the external CDROM. Everything else is on the fwscsi
> interface.

Still might be a problem with what PDC thinks is "scsi" in this
case.  scsi.6.0 means "target 6 on the scsi bus."  Since you have
two SCSI busses (the internal fw and the external) it might be
confused about what bus it's talking to.  As Grant suggested, 
"sea scsi" (or just "sea") should help.

Yes, you want the IPL on there.  IPL means "stop when you get to
the IPL (initial program loader)".  Without the IPL it's expecting
your IPL program to be ISL with an AUTO boot file to boot hp-ux.

Chris Moore





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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Prefetch macros for PA-RISC
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On Wed, Feb 21, 2001 at 10:49:33AM -0800, Jim Hull wrote:
> Actually, Table 6-10 in the PA-RISC 2.0 book is wrong -- LDW is prefetch
> for read, LDD is prefetch for write.  See this erratum description:
> 
> http://devresource.hp.com/devresource/Docs/Refs/PA2_0/updates/e1.html

Wow, thanks Jim.  I would never have noticed that.

-- 
Revolutions do not require corporate support.




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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> My reading of the "PA 2.0 Enhancements" in the "PA-RISC 2.0 Architecture"
> is pretty clear this is for PA2.0 CPU's only. #ifdef __LP64__ is needed.
> 
> I'd like to encourage use prefetching on bcopy/checksum type loops.
> It will help perf *alot*.

Can the prefetch on the hppa fault ?




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From: Matthew Wilcox <matthew@wil.cx>
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On Wed, Feb 21, 2001 at 10:50:53AM -0800, Grant Grundler wrote:
> Will assuming SR0 work for user space?
> Will assuming SR0 work for zero-copy patch in the (near?) future?

It'll have to.  If you want to prefetch userspace, we need different
macros.  Given an address, we have no way of telling whether it's
user or kernel.

> "addr" has alignment restrictions. Not sure if you want
> to encode those as runtime checks or not.

Um.. Kane, page 6-11: ``The prefetch address is never unaligned -- the
low-order bits are ignored and the cache line containing the address is
fetched.''

> My reading of the "PA 2.0 Enhancements" in the "PA-RISC 2.0 Architecture"
> is pretty clear this is for PA2.0 CPU's only. #ifdef __LP64__ is needed.

But that stops 32-bit kernels on 64-bit architecture from taking advantage
of the optimisation.  perhaps we need some funky runtime patching...

> I'd like to encourage use prefetching on bcopy/checksum type loops.
> It will help perf *alot*.

I believe arjan's patch uses prefetches for list walking, which helps
the scheduler a lot.

-- 
Revolutions do not require corporate support.




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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Prefetch macros for PA-RISC
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Alan Cox wrote:
> Can the prefetch on the hppa fault ?

"PARISC 2.0 Arch" page 6-11 says:
   If one of those exceptions would occur, the prefetch
   is simply ignored, but any base register modification
   specified by the instruction still occurs.

I haven't checked if the errata contradicts this.
The whole point of prefetch which be undermined if it could fault.

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Matthew Wilcox wrote:
> > "addr" has alignment restrictions. Not sure if you want
> > to encode those as runtime checks or not.
> 
> Um.. Kane, page 6-11: ``The prefetch address is never unaligned -- the
> low-order bits are ignored and the cache line containing the address is
> fetched.''

Right. I was reading the LDD/LDW pages (which don't discuss prefetching)
since I couldn't find the "Data Prefetch Instructions" section on page 6-11
on my own.


> But that stops 32-bit kernels on 64-bit architecture from taking advantage
> of the optimisation.  perhaps we need some funky runtime patching...

That's evil. I'd rather introduce a CONFIG flag that says "build me
a 32-bit kernel with PA2.0 optimizations/support". We've already made
this tradeoff in a few other places as well.


> I believe arjan's patch uses prefetches for list walking, which helps
> the scheduler a lot.

Certainly. Anytime we know we will touch more than a few cachelines,
I think it'll help.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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On Wed, Feb 21, 2001 at 11:40:42AM -0800, Grant Grundler wrote:
> Alan Cox wrote:
> > Can the prefetch on the hppa fault ?
> 
> "PARISC 2.0 Arch" page 6-11 says:
>    If one of those exceptions would occur, the prefetch
>    is simply ignored, but any base register modification
>    specified by the instruction still occurs.
> 
> I haven't checked if the errata contradicts this.
> The whole point of prefetch which be undermined if it could fault.

The errata only covers which way around the LDD/LDW instructions are.

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Prefetch macros for PA-RISC
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On Wed, Feb 21, 2001 at 11:50:54AM -0800, Grant Grundler wrote:
> > But that stops 32-bit kernels on 64-bit architecture from taking advantage
> > of the optimisation.  perhaps we need some funky runtime patching...
> 
> That's evil. I'd rather introduce a CONFIG flag that says "build me
> a 32-bit kernel with PA2.0 optimizations/support". We've already made
> this tradeoff in a few other places as well.

This sounds like a good idea.  x86 has a `processor' section.  We could
select PA1.1, PA2.0 or PA2.0Wide at that point.

-- 
Revolutions do not require corporate support.




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From: 5116@telia.com
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Subject: Re: [parisc-linux] Help wanted on an 715/50 "old Box" 2
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On 20 Feb, Alex deVries wrote:
> It seems very unlikely that's a Tulip chip, since that's a PCI chipset
> that can't connect to EISA.  If it's another EISA ethernet chipset,
> there's still some WAX work we need to get through.
> 
Actually I think there was EISA tulips (DC21040-based), but for Linux
you need to use the de4x5 driver rather than the tulip driver.

/Daniel
-- 






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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Prefetch macros for PA-RISC
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>    If one of those exceptions would occur, the prefetch
>    is simply ignored, but any base register modification
>    specified by the instruction still occurs.
> 
> I haven't checked if the errata contradicts this.
> The whole point of prefetch which be undermined if it could fault.

Excellent, our proposed list walking uses kind of depend on being able
to prefetch off the end of lists and stuff. Also I assume its prefetching a
cache line and the prefetch for write prefetches it exclusive ?





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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Prefetch macros for PA-RISC
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On Wed, Feb 21, 2001 at 09:36:54PM +0000, Alan Cox wrote:
> Excellent, our proposed list walking uses kind of depend on being able
> to prefetch off the end of lists and stuff. Also I assume its prefetching a
> cache line and the prefetch for write prefetches it exclusive ?

Yes.

>From the PCX-W ERS:

Integer word loads to GR0 will be interpreted as a prefetch-for-read
operation, while integer doubleword loads to GR0 will be interpreted
as a prefetch-for-write operation. A prefetch-for-read will cause the
prefetched cache line to be marked "shared", whereas a prefetch-for-write
will cause the prefetched cache line to be marked "private-clean"
- forcing other caches to abandon their shared copies ahead of the
actual write.

-- 
Revolutions do not require corporate support.




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Warnings compiling the CVS kernel
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On Wed, 21 Feb 2001, Rafael E. Herrera wrote:

> Alan Modra wrote:
> > On Wed, 21 Feb 2001, Rafael E. Herrera wrote:
> > > The compilation succeeds but the boot will crash here:
> > >
> > > [...]
> > > POSIX conformance testing by UNIFIX
> > 
> > Yeah, same result here (except I get a reboot).  I'm not sure yet whether
> > this is due to bugs in gcc or the kernel.
> 
> Let me know I there is something I can try. Thanks

Seems to be a kernel problem, or at least not a new gcc problem.  I dug
out an old gcc, and got the same results with yesterday's kernel sources.





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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Warnings compiling the CVS kernel
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On Wednesday 21 February 2001 08:10, Rafael E. Herrera wrote:
>
> The compilation succeeds but the boot will crash here:
>
> [...]
> POSIX conformance testing by UNIFIX
>
>
> Dumping Stack from 14000000 to 14000240:
>
> Dumping Stack from 1026e000 to 1026e700:
[stack dump removed] 
> Kernel Fault: Code=15 regs=1026e4c0 (Addr=14000008)
>
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001110
> r0-3     00000000 102ea000 10102ba8 14000000
> r4-7     14000240 1023a800 00000000 00000002
> r8-11    19a10000 00000005 00000000 00000005
> r12-15   00000004 00000006 00000008 00000006
> r16-19   1026e080 00000002 00000000 102ea000
> r20-23   00000000 00000060 00000001 00000002
> r24-27   00000001 00000001 1027b484 10266000
> r28-31   0000002a 015752a0 1026e700 00000060
> sr0-3    00000000 00000000 00000000 00000000
> sr4-7    00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 10102b10 10102b14
>  IIR: 0c701093    ISR: 00000000  IOR: 14000008
> ORIG_R28: 00000000

I have the same problem on a 715/64.
I tried to find the reason for that problem, but since I'm no professional in 
parisc-assembler I'm some kind of stuck here right now.

As far as I've tested, the following patch (HACK!) to 
ret_from_kernel_thread() against CVS head gets me at least to the 
init-process (where it then crashes).

diff -u -r1.72 entry.S
--- entry.S     2001/02/20 02:19:52     1.72
+++ entry.S     2001/02/22 00:18:13
@@ -509,10 +509,12 @@
 
        /* Call schedule_tail first though */
 
+#if 0
        b,l     schedule_tail, %r2
        ldo     64(%r30), %r30
 
        ldo     -64(%r30), %r30
+#endif
        LDREG   TASK_PT_GR26-TASK_SZ_ALGN(%r30), %r1
        LDREG   TASK_PT_GR25-TASK_SZ_ALGN(%r30), %r26
        ble     0(%sr7, %r1)

I know this is *NOT* the correct patch, but AFAIT this means that 
something on the stack (return adress or the pointer to struct task_struct 
*prev for schedule_tail ?) isn't set up properly for 32bit PA ?

I know, that this isn't much information, but maybe this can give someone 
here on the list a clue, where the problem could be ?

Thanks,
Helge




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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Warnings compiling the CVS kernel
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On Thursday 22 February 2001 01:23, Alan Modra wrote:
> On Wed, 21 Feb 2001, Rafael E. Herrera wrote:
> > Alan Modra wrote:
> > > On Wed, 21 Feb 2001, Rafael E. Herrera wrote:
> > > > The compilation succeeds but the boot will crash here:
> > > >
> > > > [...]
> > > > POSIX conformance testing by UNIFIX
> > >
> > > Yeah, same result here (except I get a reboot).  I'm not sure yet
> > > whether this is due to bugs in gcc or the kernel.
> >
> > Let me know I there is something I can try. Thanks
>
> Seems to be a kernel problem, or at least not a new gcc problem.  I dug
> out an old gcc, and got the same results with yesterday's kernel sources.

CVS from 2001/02/16 is the last one, which worked for me (independed of the 
compiler!).

Helge.




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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Booting nfsroot-20001009.tar.gz
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I got linux-20010216.tar.gz and the kernel is not crashing. I've run
into into a boot problem. Ive added the nfsroot directory in the
/etc/fstab file. With options 'default', the init process stops when
trying to start 'portmapper', it just sits there, hitting CTRL-C
continues the boot process. If I add the option 'nolock' the portmapper
will be skipped.

Next, the init process will stop or hang when trying to start 'nscd', 
CTRL-C won't break it. I disabled that script also, and finally got the
whole boot to finish.

There are other programs that don't work either, 'tar' will just sit
there, as well as 'dpkg'.

Any suggestions? Thanks.

-- 
     Rafael




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On Wed, 21 Feb 2001, Rafael E. Herrera wrote:

> There are other programs that don't work either, 'tar' will just sit
> there, as well as 'dpkg'.
> 
> Any suggestions? Thanks.

http://lists.parisc-linux.org/pipermail/parisc-linux/2001-February/011709.html
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-February/011718.html





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On Thu, 22 Feb 2001, Helge Deller wrote:

> As far as I've tested, the following patch (HACK!) to 
> ret_from_kernel_thread() against CVS head gets me at least to the 
> init-process (where it then crashes).

I ripped out this call to schedule_tail _and_ the other one in
child_return, and things are working again for me.  schedule_tail doesn't
do much on uniprocessor.  Most likely %r26 was wrong.  I'd like to know 
why the stack adjust before calling schedule_tail too.

Alan





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On Thu, Feb 22, 2001 at 04:32:51PM +1100, Alan Modra wrote:
> On Thu, 22 Feb 2001, Helge Deller wrote:
> 
> > As far as I've tested, the following patch (HACK!) to 
> > ret_from_kernel_thread() against CVS head gets me at least to the 
> > init-process (where it then crashes).
> 
> I ripped out this call to schedule_tail _and_ the other one in
> child_return, and things are working again for me.  schedule_tail doesn't
> do much on uniprocessor.  Most likely %r26 was wrong.  I'd like to know 
> why the stack adjust before calling schedule_tail too.

It does a lot of important stuff on SMP though.  It does the stack adjust
before calling because the disassembled 32-bit SMP code looks like this:

101186f4 <schedule_tail>:
101186f4:       08 03 02 41     copy r3,r1
101186f8:       08 1e 02 43     copy sp,r3
101186fc:       6b c2 3f d9     stw rp,-14(sr0,sp)

and we don't want to trash what was below the sp.

-- 
Revolutions do not require corporate support.




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On Wed, 21 Feb 2001, Matthew Wilcox wrote:

> It does a lot of important stuff on SMP though.

I'm not denying that :)

>  It does the stack adjust
> before calling because the disassembled 32-bit SMP code looks like this:
> 101186f4 <schedule_tail>:
> 101186f4:       08 03 02 41     copy r3,r1
> 101186f8:       08 1e 02 43     copy sp,r3
> 101186fc:       6b c2 3f d9     stw rp,-14(sr0,sp)
> 
> and we don't want to trash what was below the sp.

But this location is allowed to be modified by the callee, and I think you
already have a stack frame.

I wrote up some stuff on stack frames at
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-February/011715.html

Alan





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On Thu, 22 Feb 2001, Alan Modra wrote:

> I wrote up some stuff on stack frames at
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-February/011715.html

Which in looking at again, I realise is wrong.  :-(

The 64 bit "Outgoing Register Parameter Area" has eight entries, not four,
and the "Outgoing Stack Parameter Area" starts with arg word 8.





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On Thu, Feb 22, 2001 at 05:21:49PM +1100, Alan Modra wrote:
> But this location is allowed to be modified by the callee, and I think you
> already have a stack frame.

Umm... I'm not sure we always do.  It shouldn't be hard to arrange though.

> I wrote up some stuff on stack frames at
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-February/011715.html

thanks, i was going from the pdfs, but yours is easier to understand.
i don't quite see why it needs `ap' (%r29) to be assigned a value when
calling a function which has no arguments.

would a `call-c-function' macro make sense?

-- 
Revolutions do not require corporate support.




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I had another look at the fixincludes problem, and found the following:

14:36:08 write(5, "cd /scsi/tmp\nfile=sys/stat.h\nif ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 158) = 158
14:36:08 alarm(10)                      = 0
14:36:08 read(6, "FALSE\n", 4096)       = 6
14:36:08 alarm(10)                      = 10
14:36:08 read(6, "FALSE\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = -512
14:36:18 --- SIGALRM (Alarm clock) ---
14:36:18 read(6, "FALSE\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = -512
14:36:28 --- SIGINT (Interrupt) ---
14:36:28 +++ killed by SIGINT +++

fd 5 and 6 are pipes to a /bin/sh.  -512 is ERESTARTSYS.  ERESTARTSYS
shouldn't happen, and is why fixincludes is bombing.

Nothing suspicious in previous rt_sigaction calls as far as I could see,
and putting in a debugging printk in do_sigaction shows sa_flags is being
set correctly, to 0x40.

Ideas?





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On Wed, 21 Feb 2001, Matthew Wilcox wrote:

> On Thu, Feb 22, 2001 at 05:21:49PM +1100, Alan Modra wrote:
> > But this location is allowed to be modified by the callee, and I think you
> > already have a stack frame.
> 
> Umm... I'm not sure we always do.  It shouldn't be hard to arrange though.
> 
> > I wrote up some stuff on stack frames at
> > http://lists.parisc-linux.org/pipermail/parisc-linux/2001-February/011715.html
> 
> thanks, i was going from the pdfs, but yours is easier to understand.
> i don't quite see why it needs `ap' (%r29) to be assigned a value when
> calling a function which has no arguments.

No, it shouldn't be needed in that case.  It may be necessary in any of
the following cases:
a) the called function takes the address of one of it's args
b) has variable arguments
c) has more than 8 words of args (not always the same as more than 8 args)
d) needs to spill one of its args to the stack.
gcc ought to be able to convert a reference via %r29 to one via %r30, but
that doesn't work at the moment.

> would a `call-c-function' macro make sense?

Yes.





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Christoph Plattner wrote:
> 
> I have found the method working here.
> 
> The GLIBC must be built with the line:
> 
>         make user-defined-trusted-dirs=/lib
> 
> This adds the `/lib' to the internal trusted search path, which is
> defined in the generated files ./elf/trusted-dirs.{st,h}. After
> this the normal installation to the configured prefix (in my
> case /usr/parisc/hppa-linux)
> 
>         make install user-defined-trusted-dirs=/lib
> 
> and the installation to the NFS root directory can be done by repeating
> install with
> 
>         make install user-defined-trusted-dirs=/lib
> install_root=/tftpboot/apollo/root
> 
> On the workstation (booted from the palinux-0.5 root file system) I
> mounted my new NFS root to /mnt and used the command
> 
>         ldconfig -v -r /mnt

I'd like to summarize the previously discussed procedure to build glibc
on the target machine to install in the nfsroot tree.

Assume the evironment vars for the build tree are

MACH=i386-linux
DEST=/mnt/parisc
ROOT=/mnt
(The NFS root exported from the directory /tftpboot/nfsroot)

# The configuration command would be:
# (--prefix seems to be ignored when using install_root later)
 
HOSTCC=gcc CC=hppa-linux-gcc $ROOT/source/glibc/configure \
--prefix=$DEST --build=$MACH --host=hppa-linux \
--target=hppa-linux --with-headers=$ROOT/source/linux/include \
--disable-profile --without-cvs --enable-add-ons

# The build command 

make user-defined-trusted-dirs=/lib

# the install command

make install user-defined-trusted-dirs=/lib \
install_root=/tftpboot/nfsroot

Sadly, the boot process stops when init starts. Any comments?
-- 
     Rafael




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Subject: Re: [parisc-linux] Initial setup of the `glibc' in the target rootfile 
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To: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
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First of all, the make install has to be done twice !

One time for the tool chain to find the things like crt?.o, libs, etc..
For this the builtin tree is defined (given by --prefix).

	make install user-defined-trusted-dirs=/lib

The second time install it to the nfs root file system

	make install user-defined-trusted-dirs=/lib \
	  install_root=/tftpboot/nfsroot

For the target the `/lib' is the builtin search path, for the
cross tool chain the '/usr/parisc/hppa-linux/lib' (in my case).

AND A VERY IMPORTANT POINT: You have to run `ldconfig'. I tried
this on the target machine (apollo 720) by booting from the
NFS-ROOT of palinux-0.5 (I copied the contents of the CD to a
path exported by NFS). After booting I mounted my new NFSROOT to
`/mnt' and run 
	ldconfig -v -r /mnt

After that I could boot from the new root file system starting the
`init' process (but nothing else....)

Another test to do is to use host's ldconfig fore that work:

	ldconfig -v -r /tftpboot/apollo/root

or something like this...

Cheers
	Christoph P.


"Rafael E. Herrera" wrote:
> 
> Christoph Plattner wrote:
> >
> > I have found the method working here.
> >
> > The GLIBC must be built with the line:
> >
> >         make user-defined-trusted-dirs=/lib
> >
> > This adds the `/lib' to the internal trusted search path, which is
> > defined in the generated files ./elf/trusted-dirs.{st,h}. After
> > this the normal installation to the configured prefix (in my
> > case /usr/parisc/hppa-linux)
> >
> >         make install user-defined-trusted-dirs=/lib
> >
> > and the installation to the NFS root directory can be done by repeating
> > install with
> >
> >         make install user-defined-trusted-dirs=/lib
> > install_root=/tftpboot/apollo/root
> >
> > On the workstation (booted from the palinux-0.5 root file system) I
> > mounted my new NFS root to /mnt and used the command
> >
> >         ldconfig -v -r /mnt
> 
> I'd like to summarize the previously discussed procedure to build glibc
> on the target machine to install in the nfsroot tree.
> 
> Assume the evironment vars for the build tree are
> 
> MACH=i386-linux
> DEST=/mnt/parisc
> ROOT=/mnt
> (The NFS root exported from the directory /tftpboot/nfsroot)
> 
> # The configuration command would be:
> # (--prefix seems to be ignored when using install_root later)
> 
> HOSTCC=gcc CC=hppa-linux-gcc $ROOT/source/glibc/configure \
> --prefix=$DEST --build=$MACH --host=hppa-linux \
> --target=hppa-linux --with-headers=$ROOT/source/linux/include \
> --disable-profile --without-cvs --enable-add-ons
> 
> # The build command
> 
> make user-defined-trusted-dirs=/lib
> 
> # the install command
> 
> make install user-defined-trusted-dirs=/lib \
> install_root=/tftpboot/nfsroot
> 
> Sadly, the boot process stops when init starts. Any comments?
> --
>      Rafael
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955




From - Thu Nov 08 21:16:39 2018
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Subject: Re: [parisc-linux] Re: pipes
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>>>>> "Alan" == Alan Modra <alan@linuxcare.com.au> writes:

Alan> Nothing suspicious in previous rt_sigaction calls as far as I
Alan> could see, and putting in a debugging printk in do_sigaction
Alan> shows sa_flags is being set correctly, to 0x40.

I'd start by looking at the parisc kernel and glibc implementation of
pipe(). It's a somewhat special system call since it has two return
values.

I managed to wreck pipe() on the ia64 for a while as well.

Jes




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Subject: Re: [parisc-linux] Re: pipes
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Hi Alan,

On Thu, Feb 22, 2001 at 05:37:55PM +1100, Alan Modra wrote:
> 
> I had another look at the fixincludes problem, and found the following:
> 
> 14:36:08 write(5, "cd /scsi/tmp\nfile=sys/stat.h\nif ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 158) = 158
> 14:36:08 alarm(10)                      = 0
> 14:36:08 read(6, "FALSE\n", 4096)       = 6
> 14:36:08 alarm(10)                      = 10
> 14:36:08 read(6, "FALSE\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = -512
> 14:36:18 --- SIGALRM (Alarm clock) ---
> 14:36:18 read(6, "FALSE\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = -512
> 14:36:28 --- SIGINT (Interrupt) ---
> 14:36:28 +++ killed by SIGINT +++
> 
> fd 5 and 6 are pipes to a /bin/sh.  -512 is ERESTARTSYS.  ERESTARTSYS
> shouldn't happen, and is why fixincludes is bombing.
> 
> Nothing suspicious in previous rt_sigaction calls as far as I could see,
> and putting in a debugging printk in do_sigaction shows sa_flags is being
> set correctly, to 0x40.
> 
> Ideas?

Simple test case:

main()
{
        char buf[10];

        strcpy(buf, "my buffer\n");
        alarm(1);
        read(0, buf, 10);
}


10:50:05 alarm(1)                       = 0
10:50:05 read(0, "my buffer\n", 10)     = -512
10:50:06 --- SIGALRM (Alarm clock) ---
10:50:06 +++ killed by SIGALRM +++


Looks like the primary problem is that your read is blocking for 10 seconds
thinking there is no data available.  Secondary problem is that the kernel
returns the wrong thing when the syscall is interrupted.

I gather there is something receiving the data written to fd 5, processing
it, and writing back up fd 6.  We want to know if that something writes
the missing data or not.

Richard





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Subject: Re: [parisc-linux] Re: pipes
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On Thu, Feb 22, 2001 at 11:00:54AM +0000, Richard Hirst wrote:
> 10:50:05 alarm(1)                       = 0
> 10:50:05 read(0, "my buffer\n", 10)     = -512
> 10:50:06 --- SIGALRM (Alarm clock) ---
> 10:50:06 +++ killed by SIGALRM +++
> 
> 
> Looks like the primary problem is that your read is blocking for 10 seconds
> thinking there is no data available.  Secondary problem is that the kernel
> returns the wrong thing when the syscall is interrupted.

But I just tried this on my x86 as well (2.2 kernel):

alarm(1)                                = 0
read(0, 0xbffff740, 0xa)                = -1 (errno 512)
--- SIGALRM (Alarm clock) ---
+++ killed by SIGALRM +++

Richard





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> > thinking there is no data available.  Secondary problem is that the kernel
> > returns the wrong thing when the syscall is interrupted.
> 
> But I just tried this on my x86 as well (2.2 kernel):

The return is ok. Its 'deep magic' strace sees





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On Thu, 22 Feb 2001, Richard Hirst wrote:

> On Thu, Feb 22, 2001 at 05:37:55PM +1100, Alan Modra wrote:
> > 
> > I had another look at the fixincludes problem, and found the following:
> > 
> > 14:36:08 write(5, "cd /scsi/tmp\nfile=sys/stat.h\nif ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 158) = 158
> > 14:36:08 alarm(10)                      = 0
> > 14:36:08 read(6, "FALSE\n", 4096)       = 6
> > 14:36:08 alarm(10)                      = 10
> > 14:36:08 read(6, "FALSE\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = -512
> > 14:36:18 --- SIGALRM (Alarm clock) ---
> > 14:36:18 read(6, "FALSE\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = -512
> > 14:36:28 --- SIGINT (Interrupt) ---
> > 14:36:28 +++ killed by SIGINT +++
> > 
> > fd 5 and 6 are pipes to a /bin/sh.  -512 is ERESTARTSYS.  ERESTARTSYS
> > shouldn't happen, and is why fixincludes is bombing.
> > 
> > Nothing suspicious in previous rt_sigaction calls as far as I could see,
> > and putting in a debugging printk in do_sigaction shows sa_flags is being
> > set correctly, to 0x40.
> > 
> > Ideas?
> 
> Simple test case:
> 
> main()
> {
>         char buf[10];
> 
>         strcpy(buf, "my buffer\n");
>         alarm(1);
>         read(0, buf, 10);
> }
> 
> 
> 10:50:05 alarm(1)                       = 0
> 10:50:05 read(0, "my buffer\n", 10)     = -512
> 10:50:06 --- SIGALRM (Alarm clock) ---
> 10:50:06 +++ killed by SIGALRM +++
> 
> 
> Looks like the primary problem is that your read is blocking for 10 seconds
> thinking there is no data available.  Secondary problem is that the kernel
> returns the wrong thing when the syscall is interrupted.

Hi Richard,
   This is a different situation.  Notice in my case that the first
read() returning -512 was before the alarm went off.

> I gather there is something receiving the data written to fd 5, processing
> it, and writing back up fd 6.  We want to know if that something writes
> the missing data or not.

Yeah, it's /bin/sh, and has happily executed numerous commands before
the problem occurs.

Alan
-- 

Here's the complete trace.  You can see things are a little different for
the last command sent over the pipe: fixincl has (rather stupidly) decided
to ignore various signals, but that shouldn't make any difference as
regards ERESTARTSYS.  As I said above, I checked what was happening in the
kernel do_sigaction too.

16:30:08 execve("/scsi/tmp/gcc/gcc/fixinc/fixincl", ["/scsi/tmp/gcc/gcc/fixinc/fixincl"], [/* 26 vars */]) = 0
16:31:01 newuname({sys="Linux", node="tea", ...}) = 0
16:30:08 brk(0)                         = 0x18000
16:30:08 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001d000
16:30:08 open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory)
16:30:08 open("/etc/ld.so.cache", O_RDONLY) = 4
16:30:08 newfstat(4, {st_mode=S_IFREG|0644, st_size=6548, ...}) = 0
16:30:08 mmap(NULL, 6548, PROT_READ, MAP_PRIVATE, 4, 0) = 0x4001e000
16:30:08 close(4)                       = 0
16:30:08 open("/lib/libc.so.6", O_RDONLY) = 4
16:30:08 read(4, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\202\224\0\0\0004\0N(\300\0\0\2\20\0004\0 \0\5\0(\0E\0B\0\0\0\6\0\0\0004\0\0\0004\0\0\0004\0\0\0\240\0\0\0\240\0\0\0\5\0\0\0\4\0\0\0\3\0\22k(\0\22k(\0\22k(\0\0\0\20\0\0\0\20\0\0\0\4\0\0\0\4\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\22\3618\0\22\3618\0\0\0\5\0\0\20\0\0\0\0\1\0\22\361@\0\23\1@\0\23\1@\0\0\230\304\0\0\316l\0\0\0\7\0\0\20\0\0\0\0\2\0\23\211T\0\23\231T\0\23\231T\0\0\0\260\0\0\0\260\0\0\0\6\0\0\0\4\0\0\3\371\0\0\7\226\0\0\5\373\0\0\2a\0\0\6\302"..., 1024) = 1024
16:30:08 newfstat(4, {st_mode=S_IFREG|0755, st_size=5294284, ...}) = 0
16:30:08 mmap(NULL, 1298348, PROT_READ|PROT_EXEC, MAP_PRIVATE, 4, 0) = 0x40020000
16:30:08 mprotect(0x40150000, 53164, PROT_NONE) = 0
16:30:08 mmap(0x40150000, 40960, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 4, 0x12f000) = 0x40150000
16:30:08 mmap(0x4015a000, 12204, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4015a000
16:30:08 close(4)                       = 0
16:30:08 munmap(0x4001e000, 6548)       = 0
16:30:08 getpid()                       = 120
16:30:08 brk(0)                         = 0x18000
16:30:08 brk(0x19118)                   = 0x19118
16:30:08 brk(0x1a000)                   = 0x1a000
16:30:08 pipe([4, 5])                   = 0
16:30:08 pipe([6, 7])                   = 0
16:30:08 fork()                         = 121
16:30:08 close(4)                       = 0
16:30:08 close(7)                       = 0
16:30:08 fcntl(6, F_GETFL)              = 0 (flags O_RDONLY)
16:30:08 newfstat(6, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0
16:30:08 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001e000
16:30:08 _llseek(0x6, 0, 0, 0xfaf00a48, 0x1) = -1 ESPIPE (Illegal seek)
16:30:08 fcntl(5, F_GETFL)              = 0x1 (flags O_WRONLY)
16:30:08 newfstat(5, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0
16:30:08 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001f000
16:30:08 _llseek(0x5, 0, 0, 0xfaf00a48, 0x1) = -1 ESPIPE (Illegal seek)
16:30:08 getpid()                       = 120
16:30:08 rt_sigaction(SIGPIPE, {0x1664e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
16:30:08 rt_sigaction(SIGALRM, {0x1664e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
16:30:08 write(5, "trap : 1\n", 9)      = 9
16:30:08 brk(0x1c000)                   = 0x1c000
16:30:08 getcwd("/scsi/tmp", 4096)      = 10
16:31:02 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\ni[34567]86-*-linux* )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 147) = 147
16:30:08 alarm(10)                      = 0
16:30:08 read(6, "skip\n", 4096)        = 5
16:30:09 alarm(10)                      = 10
16:30:09 read(6, "\n", 4096)            = 1
16:30:09 alarm(10)                      = 10
16:30:09 read(6, "ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 32
16:30:09 alarm(0)                       = 10
16:30:09 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\ni[34567]86-*-linux* )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 147) = 147
16:30:09 alarm(10)                      = 0
16:30:09 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:09 alarm(10)                      = 10
16:30:09 alarm(10)                      = 10
16:30:09 alarm(0)                       = 10
16:30:09 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\ni[34567]86-*-linux* )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 147) = 147
16:30:09 alarm(10)                      = 0
16:30:09 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:09 alarm(10)                      = 10
16:30:09 alarm(10)                      = 10
16:30:09 alarm(0)                       = 10
16:30:09 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\n*-*-sysv4* | \\\ni[34567]86-*-sysv5* | \\\ni[34567]86-*-udk* | \\\ni[34567]86-*-solaris2.[0-4] | \\\npowerpcle-*-solaris2.[0-4] | \\\nsparc-*-solaris2.[0-4] )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-H"..., 274) = 274
16:30:09 alarm(10)                      = 0
16:30:09 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:09 alarm(10)                      = 10
16:30:09 alarm(10)                      = 10
16:30:09 alarm(0)                       = 10
16:30:09 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\n*-*-ultrix4.3 )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 141) = 141
16:30:09 alarm(10)                      = 0
16:30:09 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:09 alarm(10)                      = 10
16:30:09 alarm(10)                      = 10
16:30:09 alarm(0)                       = 10
16:30:09 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\n*-*-ultrix4.3 )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 141) = 141
16:30:09 alarm(10)                      = 0
16:30:09 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:09 alarm(10)                      = 10
16:30:09 alarm(10)                      = 10
16:30:09 alarm(0)                       = 10
16:30:09 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\n*-*-ultrix4.3 )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 141) = 141
16:30:09 alarm(10)                      = 0
16:30:09 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:09 alarm(10)                      = 10
16:30:09 alarm(10)                      = 10
16:30:09 alarm(0)                       = 10
16:30:09 brk(0x1d000)                   = 0x1d000
16:30:09 brk(0x1e000)                   = 0x1e000
16:30:09 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\nm88k-motorola-sysv3* )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 148) = 148
16:30:10 alarm(10)                      = 0
16:30:10 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:10 alarm(10)                      = 10
16:30:10 alarm(10)                      = 10
16:30:10 alarm(0)                       = 10
16:30:10 brk(0x1f000)                   = 0x1f000
16:30:10 brk(0x20000)                   = 0x20000
16:30:10 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\nm88k-motorola-sysv3* )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 148) = 148
16:30:10 alarm(10)                      = 0
16:30:10 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:10 alarm(10)                      = 10
16:30:10 alarm(10)                      = 10
16:30:10 alarm(0)                       = 10
16:30:10 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\nm88k-*-sysv3* )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 141) = 141
16:30:10 alarm(10)                      = 0
16:30:10 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:10 alarm(10)                      = 10
16:30:10 alarm(10)                      = 10
16:30:10 alarm(0)                       = 10
16:30:10 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\nm88k-tektronix-sysv3* )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 149) = 149
16:30:10 alarm(10)                      = 0
16:30:10 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:10 alarm(10)                      = 10
16:30:10 alarm(10)                      = 10
16:30:10 alarm(0)                       = 10
16:30:10 brk(0x21000)                   = 0x21000
16:30:10 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\nm68k-motorola-sysv* )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 147) = 147
16:30:10 alarm(10)                      = 0
16:30:10 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:10 alarm(10)                      = 10
16:30:10 alarm(10)                      = 10
16:30:10 alarm(0)                       = 10
16:30:10 brk(0x22000)                   = 0x22000
16:30:10 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\ni?86-*-sco3.2* )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 142) = 142
16:30:10 alarm(10)                      = 0
16:30:10 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:10 alarm(10)                      = 10
16:30:10 alarm(10)                      = 10
16:30:10 alarm(0)                       = 10
16:30:10 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\ni?86-*-sco3.2* )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 142) = 142
16:30:10 alarm(10)                      = 0
16:30:10 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:10 alarm(10)                      = 10
16:30:10 alarm(10)                      = 10
16:30:10 alarm(0)                       = 10
16:30:10 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\ni?86-*-sco3.2v4* )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 144) = 144
16:30:10 alarm(10)                      = 0
16:30:10 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:10 alarm(10)                      = 10
16:30:10 alarm(10)                      = 10
16:30:10 alarm(0)                       = 10
16:30:10 brk(0x23000)                   = 0x23000
16:30:10 brk(0x24000)                   = 0x24000
16:30:10 brk(0x25000)                   = 0x25000
16:30:10 write(5, "cd /scsi/tmp\ncase hppa-unknown-linux-gnu in\n*-*-sysv4* | \\\ni?86-*-sysv5* | \\\ni?86-*-udk* | \\\ni?86-*-solaris2.[0-4] | \\\npowerpcle-*-solaris2.[0-4] | \\\nsparc-*-solaris2.[0-4] )\n    echo run ;;\n* ) echo skip ;;\nesac\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 256) = 256
16:30:10 alarm(10)                      = 0
16:30:10 read(6, "skip\n\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = 38
16:30:10 alarm(10)                      = 10
16:30:10 alarm(10)                      = 10
16:30:10 alarm(0)                       = 10
16:30:10 brk(0x26000)                   = 0x26000
16:30:10 rt_sigaction(SIGQUIT, {SIG_IGN}, {SIG_DFL}, 8) = 0
16:30:10 rt_sigaction(SIGABRT, {SIG_IGN}, {SIG_DFL}, 8) = 0
16:30:10 rt_sigaction(SIGPIPE, {SIG_IGN}, {0x1664e, [STKFLT RT_2 RT_5 RT_6 RT_8 RT_9 RT_10 RT_12 RT_14 RT_16], SA_RESTART}, 8) = 0
16:30:10 rt_sigaction(SIGALRM, {SIG_IGN}, {0x1664e, [STKFLT RT_2 RT_5 RT_6 RT_8 RT_9 RT_10 RT_12 RT_14 RT_16], SA_RESTART}, 8) = 0
16:30:10 rt_sigaction(SIGTERM, {SIG_IGN}, {SIG_DFL}, 8) = 0
16:30:10 ioctl(2, 0x40245410, {B9600 opost isig icanon echo ...}) = 0
16:30:10 newfstat(0, {st_mode=S_IFIFO|0600, st_size=13, ...}) = 0
16:30:10 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4015d000
16:30:10 read(0, "./sys/stat.h\n", 4096) = 13
16:30:10 read(0, "", 4096)              = 0
16:30:10 close(0)                       = 0
16:30:10 munmap(0x4015d000, 4096)       = 0
16:30:10 open("/dev/null", O_RDONLY|O_LARGEFILE) = 0
16:30:10 access("sys/stat.h", R_OK)     = 0
16:30:10 newstat("sys/stat.h", {st_mode=S_IFREG|0644, st_size=12006, ...}) = 0
16:30:10 open("sys/stat.h", O_RDONLY)   = 4
16:30:10 mmap(NULL, 12007, PROT_READ, MAP_PRIVATE, 4, 0) = 0x4015d000
16:30:10 write(2, " 12007 sys/stat.h                                           \r", 61) = 61
16:30:10 write(5, "cd /scsi/tmp\nfile=sys/stat.h\nif ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 158) = 158
16:30:10 alarm(10)                      = 0
16:30:10 read(6, "FALSE\n", 4096)       = 6
16:30:10 alarm(10)                      = 10
16:30:10 read(6, "FALSE\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = -512
16:30:20 --- SIGALRM (Alarm clock) ---
16:30:20 read(6, "FALSE\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = -512
18:49:04 --- SIGINT (Interrupt) ---
18:49:04 +++ killed by SIGINT +++






From - Thu Nov 08 21:16:39 2018
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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Re: pipes
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On Thu, 22 Feb 2001, Alan Cox wrote:

> > > thinking there is no data available.  Secondary problem is that the kernel
> > > returns the wrong thing when the syscall is interrupted.
> > 
> > But I just tried this on my x86 as well (2.2 kernel):
> 
> The return is ok. Its 'deep magic' strace sees

Err, are you saying I'm barking up the wrong gum tree, and there's nothing
wrong with the read() in my strace output?





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> > The return is ok. Its 'deep magic' strace sees
> 
> Err, are you saying I'm barking up the wrong gum tree, and there's nothing
> wrong with the read() in my strace output?

strace will see the magic ERESTARTSYS type codes, but the application will not





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Xref: news.gmane.org gmane.linux.ports.parisc:10362

On Thu, Feb 22, 2001 at 10:34:18PM +1100, Alan Modra wrote:
> On Thu, 22 Feb 2001, Richard Hirst wrote:
> 
> > On Thu, Feb 22, 2001 at 05:37:55PM +1100, Alan Modra wrote:
> > > 
> > > I had another look at the fixincludes problem, and found the following:
> > > 
> > > 14:36:08 write(5, "cd /scsi/tmp\nfile=sys/stat.h\nif ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 158) = 158
> > > 14:36:08 alarm(10)                      = 0
> > > 14:36:08 read(6, "FALSE\n", 4096)       = 6
> > > 14:36:08 alarm(10)                      = 10
> > > 14:36:08 read(6, "FALSE\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = -512
> > > 14:36:18 --- SIGALRM (Alarm clock) ---
> > > 14:36:18 read(6, "FALSE\nShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 4096) = -512
> > > 14:36:28 --- SIGINT (Interrupt) ---
> > > 14:36:28 +++ killed by SIGINT +++

>    This is a different situation.  Notice in my case that the first
> read() returning -512 was before the alarm went off.

Don't think so.  The read is issued at 14:36:08, no data is available,
so 10 seconds later the alarm goes off, and read returns -512.  Strace
completes that line of output and reports the SIGALRM.

Richard





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Subject: Re: [parisc-linux] Re: pipes
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Xref: news.gmane.org gmane.linux.ports.parisc:10363

On Thu, Feb 22, 2001 at 10:39:57PM +1100, Alan Modra wrote:
> On Thu, 22 Feb 2001, Alan Cox wrote:
> 
> > > > thinking there is no data available.  Secondary problem is that the kernel
> > > > returns the wrong thing when the syscall is interrupted.
> > > 
> > > But I just tried this on my x86 as well (2.2 kernel):
> > 
> > The return is ok. Its 'deep magic' strace sees
> 
> Err, are you saying I'm barking up the wrong gum tree, and there's nothing
> wrong with the read() in my strace output?

I think the problem is simply that there is no data for the read to
pick up, so it hangs until the alarm goes off.

Richard





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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Re: pipes
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On Thu, 22 Feb 2001, Richard Hirst wrote:

> Don't think so.  The read is issued at 14:36:08, no data is available,
> so 10 seconds later the alarm goes off, and read returns -512.  Strace
> completes that line of output and reports the SIGALRM.

Ah, thanks for the clarification.  So it comes back to data being mangled
in the pipe or somesuch.

Hmm, strace -f now works with your mods to the kernel, so now I can look
at the other end.  

131   22:37:47 write(5, "cd /scsi/tmp\nfile=sys/stat.h\nif ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 158 <unfinished ...>
132   22:37:47 read(0, "cd /scsi/tmp\nfile=sys/stat.h\nif ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEUUUU\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\367\4\0\0\0\0\0PUU\0\0\0\0\0\0"..., 156) = 558544
132   22:37:47 chdir("/scsi/tmp")       = 0

Bingo.  Look at that read.





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Xref: news.gmane.org gmane.linux.ports.parisc:10365

On Thu, Feb 22, 2001 at 11:27:14PM +1100, Alan Modra wrote:
> On Thu, 22 Feb 2001, Richard Hirst wrote:
> 
> > Don't think so.  The read is issued at 14:36:08, no data is available,
> > so 10 seconds later the alarm goes off, and read returns -512.  Strace
> > completes that line of output and reports the SIGALRM.
> 
> Ah, thanks for the clarification.  So it comes back to data being mangled
> in the pipe or somesuch.
> 
> Hmm, strace -f now works with your mods to the kernel, so now I can look
> at the other end.  
> 
> 131   22:37:47 write(5, "cd /scsi/tmp\nfile=sys/stat.h\nif ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 158 <unfinished ...>
> 132   22:37:47 read(0, "cd /scsi/tmp\nfile=sys/stat.h\nif ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEUUUU\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\367\4\0\0\0\0\0PUU\0\0\0\0\0\0"..., 156) = 558544
> 132   22:37:47 chdir("/scsi/tmp")       = 0
> 
> Bingo.  Look at that read.

Nice one!  I wonder if that <unfinished ...> is significant.  You can
tell strace to write each processes trace to a seperate file, which
might show if that write is really blocked or it is just straces way of
handling output, and you can use -tt to get finer grained timestamping.

How do I reproduce this?  Is it as simple as cd <somewhere in a gcc
build tree> && ./fixincludes, or is it more complex?

Richard





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Subject: Re: [parisc-linux] Re: pipes
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Xref: news.gmane.org gmane.linux.ports.parisc:10366

On Thu, 22 Feb 2001, Richard Hirst wrote:

> On Thu, Feb 22, 2001 at 11:27:14PM +1100, Alan Modra wrote:
> > 131   22:37:47 write(5, "cd /scsi/tmp\nfile=sys/stat.h\nif ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 158 <unfinished ...>
> > 132   22:37:47 read(0, "cd /scsi/tmp\nfile=sys/stat.h\nif ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEUUUU\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\367\4\0\0\0\0\0PUU\0\0\0\0\0\0"..., 156) = 558544
> > 132   22:37:47 chdir("/scsi/tmp")       = 0
> > 
> > Bingo.  Look at that read.
> 
> Nice one!  I wonder if that <unfinished ...> is significant.

It completes after pid 132 has done a few things.

> How do I reproduce this?  Is it as simple as cd <somewhere in a gcc
> build tree> && ./fixincludes, or is it more complex?

Nothing is ever simple when it comes to gcc ;)

This is more or less what I used for the last trace, but I've
parameterized it for you, and added a crucial mkdir.  Change BUILD to
suit.  What's the betting you can't reproduce this? :-(

BUILD=/scsi/tmp/gcc
mkdir -p $BUILD/gcc/include/usr/include/sys
cd /usr/include
echo ./sys/stat.h | \
TARGET_MACHINE=hppa-unknown-linux-gnu \
ORIGDIR=$BUILD/gcc \
SRCDIR=/usr/include \
INPUT=/usr/include \
DESTDIR=$BUILD/gcc/include \
VERBOSE=5 \
FIND_BASE=. \
strace -s 256 -t -f -o /tmp/tsys $BUILD/gcc/fixinc/fixincl





From - Thu Nov 08 21:16:40 2018
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From: "Jim Buttafuoco" <jim@tylerdrive.org>
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Subject: Re: [parisc-linux] Booting nfsroot-20001009.tar.gz
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To: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>,
	PL <parisc-linux@lists.parisc-linux.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:10367

I had the same problem.  I noticed that the loopback network was not
getting setup.  After I fixed this the boot worked find.



> I got linux-20010216.tar.gz and the kernel is not crashing. I've run
> into into a boot problem. Ive added the nfsroot directory in the
> /etc/fstab file. With options 'default', the init process stops when
> trying to start 'portmapper', it just sits there, hitting CTRL-C
> continues the boot process. If I add the option 'nolock' the
portmapper
> will be skipped.
> 
> Next, the init process will stop or hang when trying to start 'nscd', 
> CTRL-C won't break it. I disabled that script also, and finally got
the
> whole boot to finish.
> 
> There are other programs that don't work either, 'tar' will just sit
> there, as well as 'dpkg'.
> 
> Any suggestions? Thanks.
> 
> -- 
>      Rafael
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 
> 






From - Thu Nov 08 21:16:40 2018
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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Re: schedule_tail
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To: Matthew Wilcox <matthew@wil.cx>
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On Thu, 22 Feb 2001, Alan Modra wrote:

> First time in do_fork, I see
>  p = 0x14ff0000, current = 0x102cc000 (= init_task)
> 
> first call to ret_from_kernel_thread gives
>  r26 = 0x102cc000, r30 = 0x14ff0500, and called func = init
> 
> so that checks out OK.  Disassmbling schedule_tail doesn't show anything
> bad.
> 
>  copy r3,r1
>  copy sp,r3
>  stw,ma r1,0x40(sp)
>  ldw 0x28(r26),r19
>  depwi 0,27,1,r19
>  stw r19,0x28(r26)
>  ldo 0x40(r3),sp
>  bv (rp)
>  ldw,mb -0x40(sp),r3

This is really crazy (or I am).  I replaced the calls to schedule_tail
with a call to foo_schedule_tail, a local copy of the above without the
bit twiddling.  Still crashed.  OK, so maybe the stack is messed up.
Turn foo_schedule_tail into

foo_schedule_tail:
  bv (%rp)
  nop

It crashes!!  Remove the calls, and it's OK.  What????





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: schedule_tail
Date: Thu, 22 Feb 2001 14:43:31 +0000
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To: Alan Modra <alan@linuxcare.com.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:10369

On Fri, Feb 23, 2001 at 01:28:36AM +1100, Alan Modra wrote:
> This is really crazy (or I am).  I replaced the calls to schedule_tail

This helps for me.  b,l disassembles as call, not b,l ...,rp:

===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/entry.S,v
retrieving revision 1.72
diff -u -r1.72 entry.S
--- entry.S     2001/02/20 02:19:52     1.72
+++ entry.S     2001/02/22 14:33:43
@@ -509,7 +509,7 @@
 
        /* Call schedule_tail first though */
 
-       b,l     schedule_tail, %r2
+       bl      schedule_tail, %r2
        ldo     64(%r30), %r30
 
        ldo     -64(%r30), %r30
@@ -1790,7 +1790,7 @@
 
        /* Set the return value for the child */
 child_return:
-       b,l     schedule_tail, %r2
+       bl      schedule_tail, %r2
        ldo     64(%r30), %r30
 
        ldo     -64(%r30), %r30


Richard





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: pipes
Date: Thu, 22 Feb 2001 17:00:50 +0000
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In-Reply-To: <Pine.LNX.4.21.0102230011340.14557-100000@front.linuxcare.com.au>; from alan@linuxcare.com.au on Fri, Feb 23, 2001 at 12:27:44AM +1100
Xref: news.gmane.org gmane.linux.ports.parisc:10370

On Fri, Feb 23, 2001 at 12:27:44AM +1100, Alan Modra wrote:
> suit.  What's the betting you can't reproduce this? :-(

atm the child dies for me before the two get to talk over the pipes at
all.

Beware: strace output is wrong after a traced program does execve:

main()
{
        execl("/bin/true", "true", 0);
}


...
...
getpid()                                = 13025
execve("/bin/true", ["true"], [/* 20 vars */]) = 0
execve("", [ptrace: umoven: Input/output error
0x1], [/* 1 var */])     = 1073851560
newuname({sys="Linux", node="merlin", ...}) = 0
brk(0)                                  = 0x2f
open("/etc/ld.so.preload", O_RDONLY)    = 9
open("/etc/ld.so.cache", O_RDONLY)      = 3
newfstat(3, {st_mode=S_IFREG|0644, st_size=7103, ...}) = 0
mmap(NULL, 7103, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4001c000
close(3)                                = 1073863222
open("/lib/libc.so.6", O_RDONLY)        = 1073848888
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2k\314"..., 1024) = 1073856336





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From: Paul Bame <bame@fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: pipes
Date: Thu, 22 Feb 2001 10:44:02 -0700
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To: Richard Hirst <rhirst@linuxcare.com>
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             <20010222170050.B4660@linuxcare.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:10371

I thought I'd write a pipe test program for laughs.  Don't run this
unless you want to cry -- it locks up my machine (both narrow
and wide kernels) after not very many trials, though 'ping' still works.
On a wide kernel, a TOC caught it in __down_interruptible but that
could be normal.

	-P


#include <stdio.h>
#include <unistd.h>

#define READ 0
#define WRITE 1
#define SIZE 4096

int
main(int argc, char *argv[])
{
    int p[2];
    char data[SIZE];
    char rdbuf[SIZE];
    int i;
    int pid;

    if (pipe(p) != 0)
    {
	perror("pipe");
	return 3;
    }

    for (i = 0; i < SIZE; i++)
    {
	data[i] = rand() & 0xff;
    }

    if ((pid = fork()) < 0)
    {
	perror("fork");
	return 3;
    }

    for(i = 0; i < 10000; i++)
    {
	int sendoffset = rand() % SIZE;
	int sendsize = rand() % (SIZE - sendoffset);
	int wr, rd;

	/* Don't bother sending 0 bytes */
	if (sendoffset == SIZE - 1)
	    continue;

	if (pid > 0)
	{
	    wr = write(p[WRITE], data + sendoffset, sendsize);
	    printf("%d: write(data + %d, %d) = %d\n",
		i, sendoffset, sendsize, wr);
	    if (wr != sendsize)
	    {
		fprintf(stderr, "write returns %d expected %d\n", wr, sendsize);
		if (wr < 0)
			perror("write");
	    }
	}
	else
	{
	    rd = read(p[READ], rdbuf, sendsize);
	    printf("%d: read(%d) = %d\n", i, sendsize, rd);
	    if (rd != sendsize)
	    {
		fprintf(stderr, "read returns %d expected %d\n", rd, sendsize);
		if (rd < 0)
		    perror("read");
	    }

	    if (memcmp(data + sendoffset, rdbuf, rd) != 0)
	    {
		fprintf(stderr, "readback compare failed\n");
	    }
	}
    }
}




From - Thu Nov 08 21:16:40 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: schedule_tail
Date: Thu, 22 Feb 2001 11:24:41 -0700
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References: <Pine.LNX.4.21.0102222150310.14557-100000@front.linuxcare.com.au> <Pine.LNX.4.21.0102230114130.14557-100000@front.linuxcare.com.au> <20010222144331.G1129@linuxcare.com>
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Cc: Alan Modra <alan@linuxcare.com.au>,
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To: Richard Hirst <rhirst@linuxcare.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:10372

On Thu, Feb 22, 2001 at 02:43:31PM +0000, Richard Hirst wrote:
> On Fri, Feb 23, 2001 at 01:28:36AM +1100, Alan Modra wrote:
> > This is really crazy (or I am).  I replaced the calls to schedule_tail
> 
> This helps for me.  b,l disassembles as call, not b,l ...,rp:
> 
> ===================================================================
> RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/entry.S,v
> retrieving revision 1.72
> diff -u -r1.72 entry.S
> --- entry.S     2001/02/20 02:19:52     1.72
> +++ entry.S     2001/02/22 14:33:43
> @@ -509,7 +509,7 @@
>  
>         /* Call schedule_tail first though */
>  
> -       b,l     schedule_tail, %r2
> +       bl      schedule_tail, %r2

This is crazy.  entry.S is .level 2.0.  bl is not a pa2.0 opcode, b,l is!
What is going on?!

Wait.  Is it...

`The word displacement is assembled from the w, w1, w2, and (when the
,L completer is specified with GR 2 as the link register) w3 fields in
the instruction.''

which, iirc is not available on pa1.1 processors.  So here's the crucial
difference.  Not 32-bit vs 64-bit.  Not SMP vs UP.  But pa1.1 vs 2.0.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:16:40 2018
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From: WIES Nicolas <n.wies@wanadoo.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Help wanted on an 715/50 "old Box" 2
Date: Thu, 22 Feb 2001 23:01:03 +0100
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Le Mercredi 21 Fvrier 2001 21:47, vous avez crit :
> On 20 Feb, Alex deVries wrote:
> > It seems very unlikely that's a Tulip chip, since that's a PCI chipset
> > that can't connect to EISA.  If it's another EISA ethernet chipset,
> > there's still some WAX work we need to get through.
>
> Actually I think there was EISA tulips (DC21040-based), but for Linux
> you need to use the de4x5 driver rather than the tulip driver.
>
> /Daniel

Thanks for this information. This card comes from HP, this an extension card 
available when the 715 was buy. It's the HP 25567B EISA LAN adapter.

I try yesterday to boot from a kernel by rbootd, but during 1H30 nothing 
append.
I retry this weekend with the last kernel from the FTP.


Nicolas
-- 
Adresse de rponse  / return address :

	n.wies@wanadoo.fr

:-)





From - Thu Nov 08 21:16:41 2018
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From: Matthew Wilcox <willy@ldl.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] Fix HPUX fork
Date: Thu, 22 Feb 2001 21:46:13 -0700
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jsm pointed out I'd broken HPUX fork recently.  This fix is untested
(except that it builds), but if it's wrong it does at least point the
way.  I don't know if we want to enable STICKY_TIMEOUTS or some other
bugs for PER_HPUX, but they weren't enabled for SOM processes before,
so I haven't enabled them now.

Index: arch/parisc/hpux/entry_hpux.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/hpux/entry_hpux.S,v
retrieving revision 1.14
diff -u -p -r1.14 entry_hpux.S
--- entry_hpux.S	2000/07/18 03:14:26	1.14
+++ entry_hpux.S	2001/02/23 04:35:17
@@ -1,17 +1,13 @@
-/* -----------------------------------------------------------------------------
+/*
  *
- * Native PARISC/Linux Project (http://www.puffingroup.com/parisc)
+ * PARISC/Linux Project (http://www.parisc-linux.org/)
  *
  * modified by Matthew Wilcox <willy@bofh.ai> 1999-07-26
  */
 
-
-#define ASSEMBLY
-
 #include <linux/sys.h>
 #include <linux/linkage.h>
 #include <asm/unistd.h>
-
 
 	.text
 
Index: arch/parisc/hpux/wrappers.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/hpux/wrappers.S,v
retrieving revision 1.12
diff -u -p -r1.12 wrappers.S
--- wrappers.S	2001/01/28 13:39:13	1.12
+++ wrappers.S	2001/02/23 04:35:17
@@ -1,5 +1,5 @@
-/*------------------------------------------------------------------------------
- * Native PARISC/Linux Project (http://www.puffingroup.com/parisc)
+/*
+ * PARISC/Linux Project (http://www.parisc-linux.org/)
  *
  * HP-UX System Call Wrapper routines and System Call Return Path
  *
@@ -80,6 +80,7 @@
 
 
 	.export hpux_fork_wrapper
+	.export hpux_child_return
 	.import sys_fork
 
 hpux_fork_wrapper:
@@ -90,10 +91,7 @@ hpux_fork_wrapper:
 	stw	%r2,-20(%r30)
 	ldo	64(%r30),%r30
 	stw	%r2,PT_GR19(%r1)	;! save for child
-	stw	%r30,PT_GR20(%r1)	;! save for child
-	ldil	L%child_return,%r3
-	ldo	R%child_return(%r3),%r3
-	stw	%r3,PT_GR21(%r1)	;! save for child
+	stw	%r30,PT_GR21(%r1)	;! save for child
 
 	ldw	TASK_PT_GR30(%r1),%r25
 	copy	%r1,%r24
@@ -129,7 +127,7 @@ fork_exit:
 
 	/* Set the return value for the child */
 
-child_return:
+hpux_child_return:
 	ldw TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
Index: arch/parisc/kernel/process.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/process.c,v
retrieving revision 1.32
diff -u -p -r1.32 process.c
--- process.c	2001/02/23 01:08:42	1.32
+++ process.c	2001/02/23 04:35:17
@@ -223,6 +223,7 @@ copy_thread(int nr, unsigned long clone_
 	 * function pointers aren't a pointer to the function on 64-bit */
 	extern void *ret_from_kernel_thread;
 	extern void *child_return;
+	extern void *hpux_child_return;
 
 	*cregs = *pregs;
 
@@ -262,8 +263,12 @@ copy_thread(int nr, unsigned long clone_
 		/* Use same stack depth as parent */
 		cregs->ksp = ((unsigned long)(p))
 			+ (pregs->gr[21] & (INIT_TASK_SIZE - 1));
-		cregs->kpc = &child_return;
 		cregs->gr[30] = usp;
+		if (p->personality == PER_HPUX) {
+			cregs->kpc = &hpux_child_return;
+		} else {
+			cregs->kpc = &child_return;
+		}
 	}
 
 	return 0;
Index: fs/binfmt_som.c
===================================================================
RCS file: /home/cvs/parisc/linux/fs/binfmt_som.c,v
retrieving revision 1.14
diff -u -p -r1.14 binfmt_som.c
--- binfmt_som.c	2000/12/19 23:56:51	1.14
+++ binfmt_som.c	2001/02/23 04:35:17
@@ -228,7 +228,7 @@ do_load_som_binary(struct linux_binprm *
 
 	/* OK, This is the point of no return */
 	current->flags &= ~PF_FORKNOEXEC;
-	current->personality = PER_LINUX; /* I suspect we want a PER_HPUX */
+	current->personality = PER_HPUX;
 
 	retval = map_som_binary(bprm->file, hpuxhdr);
 	if (retval < 0)
Index: include/linux/personality.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/linux/personality.h,v
retrieving revision 1.3
diff -u -p -r1.3 personality.h
--- personality.h	2000/05/26 16:03:05	1.3
+++ personality.h	2001/02/23 04:35:18
@@ -25,11 +25,12 @@
 #define PER_SUNOS		(PER_BSD | STICKY_TIMEOUTS)
 #define PER_XENIX		(0x0007 | STICKY_TIMEOUTS)
 #define PER_LINUX32		(0x0008)
-#define PER_IRIX32              (0x0009 | STICKY_TIMEOUTS) /* IRIX5 32-bit     */
-#define PER_IRIXN32             (0x000a | STICKY_TIMEOUTS) /* IRIX6 new 32-bit */
-#define PER_IRIX64              (0x000b | STICKY_TIMEOUTS) /* IRIX6 64-bit     */
+#define PER_IRIX32		(0x0009 | STICKY_TIMEOUTS) /* IRIX5 32-bit     */
+#define PER_IRIXN32		(0x000a | STICKY_TIMEOUTS) /* IRIX6 new 32-bit */
+#define PER_IRIX64		(0x000b | STICKY_TIMEOUTS) /* IRIX6 64-bit     */
 #define PER_RISCOS		(0x000c)
 #define PER_SOLARIS		(0x000d | STICKY_TIMEOUTS)
+#define PER_HPUX		(0x000e)
 
 /* Prototype for an lcall7 syscall handler. */
 typedef void (*lcall7_func)(int, struct pt_regs *);




From - Thu Nov 08 21:16:41 2018
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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] [PATCH] Fix HPUX fork
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Xref: news.gmane.org gmane.linux.ports.parisc:10375

Matthew Wilcox wrote:
> -		cregs->kpc = &child_return;
>  		cregs->gr[30] = usp;
> +		if (p->personality == PER_HPUX) {
> +			cregs->kpc = &hpux_child_return;
> +		} else {
> +			cregs->kpc = &child_return;
> +		}

Matthew,
In general, branches hurt performance on RISC archs.
Could the code be structured something like:

	cregs->kpc = child_return_ftn[p->personality];
or 
	cregs->kpc = personality_data[p->personality].child_ret_ftn;


For PARISC-linux, do we need more personalities for wide-mode or SOM support?
If so, then indexing is probably a better solution.

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:16:41 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] parisc64 vs kernel64
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I wonder if we're doing this right, having parisc and parisc64 as
different architectures.  They're fundamentally similar than sparc/sparc64
or mips/mips64 are.  We have very few files in parisc64 (the rest are
made visible to the build system by creating symlinks to their equivalent
in parisc).

Excluding Makefiles, we have:

kernel/binfmt_elf32.c
kernel/sys32.h
kernel/head.S
kernel/ioctl32.c
kernel/lasimap.map
kernel/pdcpat.c
kernel/signal32.c
kernel/sys_parisc32.c
real/head.S

I'm 99% sure we don't use real/head.S any more.  Or kernel/lasimap.map.
So how about moving the rest to parisc/kernel64?  We'd select between
them with something like:

make config
[...]
*
* Processor type and features
*
Processor family (PA1.1, PA2.0, PA2.0Wide) [PA1.1] 

i think it might make maintenance easier, and possibly alan/linus would
be more willing to take this than the current do_links based situation.

alternatively, maybe we should scrap all the #ifdef __LP64__ stuff from
our current files, duplicate large parts of them and populate parisc64
properly.  i think this current situation is the worst of both worlds
in that it's quite easy to forget about parisc64 when fiddling with
something in the parisc directory.

i favour moving the files to parisc/kernel64, but i'm interested in
hearing other points of view, including `stop messing about'.

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] Documentation wanted
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Looking for something to do?  I ran `make checkhelp' and the following
undocumented CONFIG options are our fault.  If you'd like to write
some help and send diffs against Configure.help to the list, that'd
be appreciated.

Use power LED as a heartbeat
CONFIG_HEARTBEAT
  No help for CONFIG_HEARTBEAT

/proc/hardware support
CONFIG_PROC_HARDWARE
  No help for CONFIG_PROC_HARDWARE

Support for Lasi/Dino PS2 port
CONFIG_GSC_PS2
  No help for CONFIG_GSC_PS2

HIL keyboard support
CONFIG_HIL
  No help for CONFIG_HIL

serial port on GSC support
CONFIG_SERIAL_GSC
  No help for CONFIG_SERIAL_GSC

Lasi ethernet
CONFIG_LASI_82596
  No help for CONFIG_LASI_82596

Generic STI frame buffer device support
CONFIG_FB_STI
  No help for CONFIG_FB_STI





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Subject: [parisc-linux] gcc & profiling
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This is a little embarrassing.  I've just discovered our mainline gcc has
all the nice profiling code in config/pa/pa.c, PROFILE_HOOK defined in
config/pa/pa.h, but no support for PROFILE_HOOK in function.c.  Oops.  No
profiler calls in generated code.

pehc merge from sourceware was before PROFILE_HOOK was added, but I was
working from a later merge when developing the code. :-(

All this would be bad enough, but after plugging in the missing bits, I
thought I'd better test a glibc compile with profiling enabled.  That
showed a bug when inline functions are involved.  Oops again.
Currently testing a fix...

Alan





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On Fri, Feb 23, 2001 at 10:31:32PM +1100, Alan Modra wrote:
> This is a little embarrassing.  I've just discovered our mainline gcc has
> all the nice profiling code in config/pa/pa.c, PROFILE_HOOK defined in
> config/pa/pa.h, but no support for PROFILE_HOOK in function.c.  Oops.  No
> profiler calls in generated code.
> 
> pehc merge from sourceware was before PROFILE_HOOK was added, but I was
> working from a later merge when developing the code. :-(

So we're going to need another gcc merge?

On the subject of `Embarrassing', I've been making an assertion for a
while which I've just discovered is out of date.  gcc supports scheduling
for processors after pa7200.  It now supports -mschedule= 700, 7100,
7100LC, 7200, 8000 and -march= 1.0, 1.1 and 2.0.

So I think I'm going to add config options to the kernel to allow people
to optimise for this, just like x86 does.

-- 
Revolutions do not require corporate support.




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On Thu, Feb 22, 2001 at 10:44:02AM -0700, Paul Bame wrote:
> 
> I thought I'd write a pipe test program for laughs.  Don't run this
> unless you want to cry -- it locks up my machine (both narrow
> and wide kernels) after not very many trials, though 'ping' still works.
> On a wide kernel, a TOC caught it in __down_interruptible but that
> could be normal.

Interesting, this kills my almost-cvs-head kernel, but it works
fine on one of my old kernels from Jan 11th.  Sorry Alan, fixincl
fails the same on my Jan 11th kernel.

Also, it works on cvs head under strace, but that kind of synchronises
the two ends of the pipe so you get alternating reads and writes.

Richard





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On Fri, 23 Feb 2001, Matthew Wilcox wrote:

> So we're going to need another gcc merge?

No, the PROFILE_HOOK stuff is only a few lines of isolated code.





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On Fri, 23 Feb 2001, Richard Hirst wrote:

> Also, it works on cvs head under strace, but that kind of synchronises
> the two ends of the pipe so you get alternating reads and writes.

Yes, I found the same result in a test prog I wrote.





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Subject: Re: [parisc-linux] parisc64 vs kernel64
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Xref: news.gmane.org gmane.linux.ports.parisc:10383

I can imagine about a half-dozen new files to handle hpux32 and hpux64
syscalls and signals and stuff.

= So how about moving the rest to parisc/kernel64?

On first thought I'm not opposed to this but I'd like to let the
suggestion ripen for a while.

= We'd select between
= them with something like:
= 
= make config
= [...]
= *
= * Processor type and features
= *
= Processor family (PA1.1, PA2.0, PA2.0Wide) [PA1.1] 

FYI we'll probably want/have another CONFIG parameter to select 64-bit
kernel on 32-bit firmware translation layer.

= i think it might make maintenance easier, and possibly alan/linus would
= be more willing to take this than the current do_links based situation.

I would appreciate specifics of their "unwillingness" -- all I've heard
so far is assertions that they would hate it.

	-P




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Re: pipes
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Xref: news.gmane.org gmane.linux.ports.parisc:10384

On Fri, Feb 23, 2001 at 10:32:55PM +1100, Alan Modra wrote:
> On Fri, 23 Feb 2001, Richard Hirst wrote:
> 
> > Probably.  Without strace, I now get
> > 
> > merlin:/build# ./fix-bug.sh 
> > /bin/sh: d: command not found                               
> > 
> > 
> > and it hangs with both ends reading their respective pipes.  I guess
> > that indicates I am hitting the same problem as you, anyway.
> 
> This is exactly what I get, right down to the same "d: command not found"

I've added debug to the kernel fs/pipe.c, which shows the problem is
most likely data loss in the child read from the pipe.
The child always issues reads with a 159 byte buffer.  The last write
from the parent is 161 bytes, as can be seen in this strace log:

189   06:24:51 write(5, "cd /usr/include\nfile=sys/stat.h\nif ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n", 161) = 161   
190   06:24:51 <... read resumed> "cd /usr/include\nfile=sys/stat.h\nif ( test -r types/vxTypesOld.h ) > /dev/null 2>&1\nthen echo TRUE\nelse echo FALSE\nfi\n\necho\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtE", 159) = 159

(that strace is not from the same run as the debug o/p below, I get
crashes when 190 forks off a child to run the test under strace, so
had to run without strace for the debug below)

and from my debug in the kernel, I see:
(header is pid,inode,r/w,byte-cnt)

189:2504b2a0,write2,259: "cd /usr/include\ncase hppa-unknown-linux-...ho\necho ShElL-OuTpUt-HaS-bEeN-cO
mPlEtEd\n"
190:2504b2a0,read2,159: "cd /usr/include\ncase hppa-unknown-linux-... \\\npowerpcle-*-solaris2.[0-4] | 
\\\nsparc-"
190:2504b2a0,read2,100: "*-solaris2.[0-4] )\n    echo run ;;\n* ) e...ho\necho ShElL-OuTpUt-HaS-bEeN-cO
mPlEtEd\n"
190:2504b0c0,write2,5: "skip\n"
189:2504b0c0,read2,5: "skip\n"
190:2504b0c0,write2,1: "\n"
189:2504b0c0,read2,1: "\n"
190:2504b0c0,write2,32: "ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n"
189:2504b0c0,read2,32: "ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd\n"
189:2504b660,read2,13: "./sys/stat.h\n"
189:2504b2a0,write2,161: "cd /usr/include\nfile=sys/stat.h\nif ( tes...ho\necho ShElL-OuTpUt-HaS-bEeN-c
OmPlEtEd\n"
190:2504b2a0,read2,159: "cd /usr/include\nfile=sys/stat.h\nif ( tes...echo\necho ShElL-OuTpUt-HaS-bEeN-
cOmPlEtE"
190:2504b0c0,write2,6: "FALSE\n"
189:2504b0c0,read2,6: "FALSE\n"
190:2504b2a0,read2,2: "d\n"


so proc 190 reads the following:


cd /usr/include
file=sys/stat.h
if ( test  -r types/vxTypesOld.h ) > /dev/null 2>&1
then echo TRUE
else echo FALSE
fi

echo
echo ShElL-OuTpUt-HaS-bEeN-cOmPlEtE


but there is no 'd\n' at the end of that last line.  Proc 190 does the test,
echoes "FALSE\n", and then goes back to look for more input.  It picks up the
'd\n' and goes trying to find /bin/d, or whatever.  Hence the output we see of


/bin/sh: d: command not found                               



So, I created a /bin/d which contained


#!/bin/sh
echo ShElL-OuTpUt-HaS-bEeN-cOmPlEtEd


and my test script then runs to completion.  The test script is the one
Alan posted, which just runs fixincl on sys/stat.h.

Note that the child only sends "FALSE\n", it doesn't send another "\n",
which should preceed the ShElL-... line.  So, the child is most likely
loosing "echo\necho ShElL-OuTpUt-HaS-bEeN-cOmPlEtE".  41 chars, which is
exactly what Alan reported in the first place.

We do now know that the data is being fed to copy_to_user() in pipe_read(),
and strace shows it is really copied to the users buffer, but it
apparently isn't being seen by the shell on its stdin.

I added more debug to look at buffer alignments, but that didn't show
anything interesting:

Parent write of 161 chars, kernel buffer 0x1dae4000, user buffer 0x4001d000
Child read of 159 bytes,   kernel buffer 0x1dae4000, user buffer 0x00085810

Child input seems to have got lost after 159-41=118 (0x76) chars, or
at child buffer address 0x85886.

So, I used gdb to attach to the stuck child and looked in its buffer:

0x85810:        100 'd' 10 '\n' 32 ' '  47 '/'  117 'u' 115 's' 114 'r' 47 '/'
0x85818:        105 'i' 110 'n' 99 'c'  108 'l' 117 'u' 100 'd' 101 'e' 10 '\n'
0x85820:        102 'f' 105 'i' 108 'l' 101 'e' 61 '='  115 's' 121 'y' 115 's'
0x85828:        47 '/'  115 's' 116 't' 97 'a'  116 't' 46 '.'  104 'h' 10 '\n'
0x85830:        105 'i' 102 'f' 32 ' '  40 '('  32 ' '  116 't' 101 'e' 115 's'
0x85838:        116 't' 32 ' '  32 ' '  45 '-'  114 'r' 32 ' '  116 't' 121 'y'
0x85840:        112 'p' 101 'e' 115 's' 47 '/'  118 'v' 120 'x' 84 'T'  121 'y'
0x85848:        112 'p' 101 'e' 115 's' 79 'O'  108 'l' 100 'd' 46 '.'  104 'h'
0x85850:        32 ' '  41 ')'  32 ' '  62 '>'  32 ' '  47 '/'  100 'd' 101 'e'
0x85858:        118 'v' 47 '/'  110 'n' 117 'u' 108 'l' 108 'l' 32 ' '  50 '2'
0x85860:        62 '>'  38 '&'  49 '1'  10 '\n' 116 't' 104 'h' 101 'e' 110 'n'
0x85868:        32 ' '  101 'e' 99 'c'  104 'h' 111 'o' 32 ' '  84 'T'  82 'R'
0x85870:        85 'U'  69 'E'  10 '\n' 101 'e' 108 'l' 115 's' 101 'e' 32 ' '
0x85878:        101 'e' 99 'c'  104 'h' 111 'o' 32 ' '  70 'F'  65 'A'  76 'L'
0x85880:        83 'S'  69 'E'  10 '\n' 102 'f' 105 'i' 10 '\n' 10 '\n' 101 'e'
0x85888:        99 'c'  104 'h' 111 'o' 10 '\n' 101 'e' 99 'c'  104 'h' 111 'o'
0x85890:        32 ' '  83 'S'  104 'h' 69 'E'  108 'l' 76 'L'  45 '-'  79 'O'
0x85898:        117 'u' 84 'T'  112 'p' 85 'U'  116 't' 45 '-'  72 'H'  97 'a'
0x858a0:        83 'S'  45 '-'  98 'b'  69 'E'  101 'e' 78 'N'  45 '-'  99 'c'
0x858a8:        79 'O'  109 'm' 80 'P'  108 'l' 69 'E'  116 't' 69 'E'  85 'U'
0x858b0:        85 'U'  85 'U'  85 'U'  0 '\000'        0 '\000'        0 '\000'

The data is all there, so now the problem looks like a corrupt return value
from the read().  Should have got 0x9f, appears to have got 0x76.  Except
strace and my kernel debug shows the return value of 0x9f.

Perhaps we should rebuild bash and see if that helps.

Richard





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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] parisc64 vs kernel64
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Matthew Wilcox wrote:
> 
> I wonder if we're doing this right, having parisc and parisc64 as
> different architectures.

How much is driven by how gcc/binutils/config.guess type stuff works?

> They're fundamentally similar than sparc/sparc64
> or mips/mips64 are.  We have very few files in parisc64 (the rest are
> made visible to the build system by creating symlinks to their equivalent
> in parisc).

We've made an effort to keep them the same. That's why most of the
files are common. The fact that PA2.0 cpus can run PA1.1 kernel bits
makes it easy for us. I'm *know* the R4000 MIPs processor had
good backwards compatibility between 32/64-bit - don't know about
later ones or Sparc/Sparc64.

> them with something like:
> 
> make config
> [...]
> *
> * Processor type and features
> *
> Processor family (PA1.1, PA2.0, PA2.0Wide) [PA1.1] 

The Processor family selection is a good idea regardless of
how arch/parisc* source is organized.

> i think it might make maintenance easier,

The difference here is negligible. The main issues are from people
not (able to?) testing both 32 and 64-bit kernels before committing.


> i think this current situation is the worst of both worlds
> in that it's quite easy to forget about parisc64 when fiddling with
> something in the parisc directory.

I disagree.
That particular issue is the same for all three directory layouts.
Perhaps you have trouble with the current model as I might with a
different one.

I think the do_links model is a good compromise and we should
stick with it a bit longer. We know more now than when the do_links
model was created. In the future, I'm inclined to support a move
to a parisc/kernel64 layout if we are confident things like 64-bit
userspace, ccNuma (eg SuperDome), CPU Hotswap, Memory Hotswap, New
CPU models, etc (just a few things I've seen on customer wish lists)
are supportable within that framework.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Matthew Wilcox wrote:
> 
> Looking for something to do?  I ran `make checkhelp' and the following
> undocumented CONFIG options are our fault.  If you'd like to write
> some help and send diffs against Configure.help to the list, that'd
> be appreciated.

This list seems incomplete.
Why didn't CONFIG_GSC_DINO, CONFIG_IOSAPIC, CONFIG_LBA_PCI,
or CONFIG_SBA_IOMMU show up?

I can write something up for those if there is an arch specific place
to put them.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
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Subject: Re: [parisc-linux] Initial setup of the `glibc' in the target rootfile 
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Christoph Plattner wrote:
> 
> First of all, the make install has to be done twice !
> 
> One time for the tool chain to find the things like crt?.o, libs, etc..
> For this the builtin tree is defined (given by --prefix).
> 
>         make install user-defined-trusted-dirs=/lib
> 
> The second time install it to the nfs root file system
> 
>         make install user-defined-trusted-dirs=/lib \
>           install_root=/tftpboot/nfsroot
> 
> For the target the `/lib' is the builtin search path, for the
> cross tool chain the '/usr/parisc/hppa-linux/lib' (in my case).
> 
> AND A VERY IMPORTANT POINT: You have to run `ldconfig'. I tried
> this on the target machine (apollo 720) by booting from the
> NFS-ROOT of palinux-0.5 (I copied the contents of the CD to a
> path exported by NFS). After booting I mounted my new NFSROOT to
> `/mnt' and run
>         ldconfig -v -r /mnt
> 
> After that I could boot from the new root file system starting the
> `init' process (but nothing else....)

export MACH=i386-linux
export DEST=~/parisk/palinux
export ROOT=~/parisk

HOSTCC=gcc CC=hppa-linux-gcc $ROOT/source/glibc/configure \
--prefix=$DEST/hppa-linux --build=$MACH \
--host=hppa-linux --target=hppa-linux \
--with-headers=$ROOT/source/linux/include --disable-profile \
--without-cvs --enable-add-ons
make MAKE="make -j 10" user-defined-trusted-dirs=/lib
make install user-defined-trusted-dirs=/lib
make install user-defined-trusted-dirs=/lib \
 install_root=/tmp/glibc

Then copied all the new files onto a second copy of nfsroot.
Booted the original, mounted the second under /mnt and run:

	parisc:/etc# ldconfig -v -r /mnt

and I got this:

ldconfig: Can't open configuration file /mnt//etc/ld.so.conf: No such
file or directory

I rebooted with the second nfsroot and got a login prompt. However, I
can't run ldconfig again and I get this error msg.:

parisc:/etc# ldconfig -v       
ldconfig: Can't open configuration file
/usr1/users/raffo/parisk/palinux/hppa-linux/etc/ld.so.conf: No such file
or directory
/usr1/users/raffo/parisk/palinux/hppa-linux/lib:
ldconfig: Can't open directory
/usr1/users/raffo/parisk/palinux/hppa-linux/lib: No such file or
directory
ldconfig: Can't create temporary cache file
/usr1/users/raffo/parisk/palinux/hppa-linux/etc/ld.so.cache~: No such
file or directory

I I create those directories and a ld.so.conf, it works, but the files
are out of place. Maybe if it were possible to configure and install the
files in the x86 machine under a pseudo /, it would install properly.
Would 'chroot' work here?

-- 
     Rafael




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Subject: Re: [parisc-linux] Initial setup of the `glibc' in the target rootfile  system
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"Rafael E. Herrera" <raffo@neuronet.pitt.edu> writes:

> I rebooted with the second nfsroot and got a login prompt. However, I
> can't run ldconfig again and I get this error msg.:
> 
> parisc:/etc# ldconfig -v       
> ldconfig: Can't open configuration file
> /usr1/users/raffo/parisk/palinux/hppa-linux/etc/ld.so.conf: No such file
> or directory

This is no error message, it's warning.

> /usr1/users/raffo/parisk/palinux/hppa-linux/lib:
> ldconfig: Can't open directory
> /usr1/users/raffo/parisk/palinux/hppa-linux/lib: No such file or
> directory

This happens if you build glibc with a prefix and then install it
somewhere else.  This cannot work.


I really don't understand who came up with these "strange" build
instructions.  For Linux builds of glibc where the result is actually
used in the normal place (means in /lib and /usr/lib) you *always*
have to configure with --prefix=/usr.  While installing it one than
can use the install_root make variable.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------




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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
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Subject: Re: [parisc-linux] Initial setup of the `glibc' in the target rootfile  
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The idea is to build glibc so you can place it in the root directory of
your parisc tree.

I saw this post that mentions how to build glibc using the cross
compiler and then installing it in the nfsroot. The instructions are for
installing glibc in a separate tree. I'm just learning how to use the
install_root option.

It's no so "strange", how about these options now?:

export MACH=i386-linux
export DEST=/usr
export ROOT=~/parisk

HOSTCC=gcc CC=hppa-linux-gcc $ROOT/source/glibc/configure \
--prefix=$DEST --build=$MACH \
--host=hppa-linux --target=hppa-linux \
--with-headers=$ROOT/source/linux/include --disable-profile \
--without-cvs --enable-add-ons
make MAKE="make -j 10" user-defined-trusted-dirs=/lib
make install user-defined-trusted-dirs=/lib \
 install_root=/tmp/glibc

Christoph mentions that a 'make install' has to be made first, but
obviously I can't do that.

If you have a better suggestion, I'll be glad to read it.

PS. I've tried this already, re-configuring it with a new prefix,
without cleaning the tree, and copying it into the nfsroot. The boot
stops when 'init' is started :(
I'm rebuilding from scratch now, we'll see.

--
     Rafael




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From: Ulrich Drepper <drepper@redhat.com>
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Subject: Re: [parisc-linux] Initial setup of the `glibc' in the target rootfile   system
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"Rafael E. Herrera" <raffo@neuronet.pitt.edu> writes:

> export MACH=i386-linux
> export DEST=/usr
> export ROOT=~/parisk
> 
> HOSTCC=gcc CC=hppa-linux-gcc $ROOT/source/glibc/configure \
> --prefix=$DEST --build=$MACH \
> --host=hppa-linux --target=hppa-linux \
> --with-headers=$ROOT/source/linux/include --disable-profile \
> --without-cvs --enable-add-ons

This looks OK (though providing HOSTCC shouldn't be necessary) and
--build, --host, and --target have no effect.  The configure script
will pick up all it has to know from the CC value.

> make MAKE="make -j 10" user-defined-trusted-dirs=/lib

Providing make isn't necessary.  Also, the `user-defined-trusted-dirs'
is not needed.  Just run

   make -j10

> make install user-defined-trusted-dirs=/lib \
>  install_root=/tmp/glibc

Again, loose the `user-defined-trusted-dirs'.  Also, is /tmp/glibc
where the nfsroot is picked up?  If not, just install in the nfsroot
directory.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------




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Subject: Re: [parisc-linux] Initial setup of the `glibc' in the target rootfile
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On 23 Feb 2001, Ulrich Drepper wrote:

> I really don't understand who came up with these "strange" build
> instructions.  For Linux builds of glibc where the result is actually
> used in the normal place (means in /lib and /usr/lib) you *always*
> have to configure with --prefix=/usr.  While installing it one than
> can use the install_root make variable.

Hi Ulrich,
  The "strange" build instructions come from people trying to use glibc
built for a cross-compiling environment, in a native environment too.

Perhaps I'm at fault for mentioning such a thing was possible (by
installing then setting up symbolic links so that glibc effectively
appears at both it's normal native location and also at the --prefix
location).  To atone, I think I'll write up a recipe for cross-building
native tools and glibc.

Oh, and for the benefit of the list, Ulrich is talking about native
builds.  This ought to be obvious, but _DO NOT_ build glibc for a
cross-compiling environment with --prefix=/usr.  If you install it, you'll
blow away your system libs.  hppa-linux libraries tend to not run very
well on x86.

Alan
-- 
Linuxcare.  Support for the Revolution.






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Alan Modra <alan@linuxcare.com.au> writes:

>   The "strange" build instructions come from people trying to use glibc
> built for a cross-compiling environment, in a native environment too.

I've done this more often myself than all the people here together and
never did something like this.

> Oh, and for the benefit of the list, Ulrich is talking about native
> builds.  This ought to be obvious, but _DO NOT_ build glibc for a
> cross-compiling environment with --prefix=/usr.

Of course you do.  If the library is later used in /usr you have to do
this.  Don't put words in my mouth I didn't say.

> If you install it, you'll blow away your system libs.  hppa-linux
> libraries tend to not run very well on x86.

No, you're not.  This is what the install_root variable is for.  If
you want to be sure you are not doing something stupid don't run `make
install' as root, simply make the directories below that pointed to by
install_root writable for yourself.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------




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Subject: Re: [parisc-linux] Initial setup of the `glibc' in the target rootfile   
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My last build hangs at init.

Ulrich Drepper wrote:
> 
> "Rafael E. Herrera" <raffo@neuronet.pitt.edu> writes:
> 
> > export MACH=i386-linux
> > export DEST=/usr
> > export ROOT=~/parisk
> >
> > HOSTCC=gcc CC=hppa-linux-gcc $ROOT/source/glibc/configure \
> > --prefix=$DEST --build=$MACH \
> > --host=hppa-linux --target=hppa-linux \
> > --with-headers=$ROOT/source/linux/include --disable-profile \
> > --without-cvs --enable-add-ons
> 
> This looks OK (though providing HOSTCC shouldn't be necessary) and
> --build, --host, and --target have no effect.  The configure script
> will pick up all it has to know from the CC value.

If I drop  --build, --host, and --target I get compilation errors, only
HOSTCC was unnecessary.

> > make MAKE="make -j 10" user-defined-trusted-dirs=/lib
> 
> Providing make isn't necessary.  Also, the `user-defined-trusted-dirs'
> is not needed.

dropped

>  Just run
>    make -j10

compiling now.

> > make install user-defined-trusted-dirs=/lib \
> >  install_root=/tmp/glibc
> 
> Again, loose the `user-defined-trusted-dirs'.  Also, is /tmp/glibc
> where the nfsroot is picked up?  If not, just install in the nfsroot
> directory.

No, it's an empty directory. I'm building in a remote machine, which is
much faster than this box. I tar the whole thing, ftp it and then unpack
it on top of the nfs root. We'll see, it'll take a few minutes.

By the way, I don't intend to use this build for cross compile other
packages, I just want to be able to install these in the nfs root. I
build the cross compile version with a --prefix that puts it out of the
way.

-- 
     Rafael




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Initial setup of the `glibc' in the target rootfile
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Date: Sat, 24 Feb 2001 19:21:01 +1100 (EST)
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On 24 Feb 2001, Ulrich Drepper wrote:

> Alan Modra <alan@linuxcare.com.au> writes:
> 
> > Oh, and for the benefit of the list, Ulrich is talking about native
> > builds.  This ought to be obvious, but _DO NOT_ build glibc for a
> > cross-compiling environment with --prefix=/usr.
> 
> Of course you do.  If the library is later used in /usr you have to do
> this.  Don't put words in my mouth I didn't say.

I think you misunderstand.  When I said above about building glibc for a
cross compiling environment, I'm talking about building an hppa-linux
glibc to be installed on an i686-linux system for use by the cross tools.
If binutils and gcc are built with --build=i686-linux --host=i686-linux
--target=hppa-linux --prefix=/usr, then it's correct to build glibc with
--build=i686-linux --host=hppa-linux --prefix=/usr/hppa-linux because then
"make install" will put glibc in the correct place for the cross tools.

Building glibc with --prefix=/usr then "make install_root=/usr/hppa-linux"
doesn't put glibc in directories searched by the cross tools.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.





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On Sat, 24 Feb 2001, Rafael E. Herrera wrote:

> By the way, I don't intend to use this build for cross compile other
> packages, I just want to be able to install these in the nfs root. I
> build the cross compile version with a --prefix that puts it out of the
> way.

I use

/src/parisc/glibc/configure --prefix=/usr --build=i686-linux \
--host=hppa-linux --with-headers=/usr/tmp/build/linux/include \
--without-cvs --enable-add-ons

make install_root=/tftpboot/<machine_name> install





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Alan Modra <alan@linuxcare.com.au> writes:

> If binutils and gcc are built with --build=i686-linux --host=i686-linux
> --target=hppa-linux --prefix=/usr, then it's correct to build glibc with
> --build=i686-linux --host=hppa-linux --prefix=/usr/hppa-linux because then
> "make install" will put glibc in the correct place for the cross tools.

Then how comes people install these binaries?  And even if not
installing, you possibly link against libc.a and get completely wrong
code.  This is not how you do it.

> Building glibc with --prefix=/usr then "make install_root=/usr/hppa-linux"
> doesn't put glibc in directories searched by the cross tools.

Then add the appropriate -L and -I.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------




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From: Matthieu Delahaye <delahaym@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Unregister driver patch
Date: Sat, 24 Feb 2001 16:56:08 +0100
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Hi all!

Here is a patch which implements the unregister_driver() function.

I had to change a field in struct hp_device:
The field "manage" (bool) become "driver" (pointer on a pa_iodc_driver),

since unregister_driver has to know by which driver a device was managed
to make unregister proper.
unregister_driver() first remove the driver from the list. Then, it
looks for devices managed by this driver and changed their "driver"
field to NULL.


More over, some drivers call register_driver at least two times, e.g.
the gsc parallel port driver. When it append, BUG() is called and a
warning is send to give the name of the driver.

NOTE: Since the structure pa_iodc_driver is used to maintain the list of
the registered drivers, I think this do not have to be put in data.init
section.


Regards,

Matthieu Delahaye
ESIEE Team
http://www.esiee.fr/~puffin






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Subject: Re: [parisc-linux] parisc64 vs kernel64
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On Fri, Feb 23, 2001 at 02:12:22PM -0800, Grant Grundler wrote:
> How much is driven by how gcc/binutils/config.guess type stuff works?

Nothing.

> We've made an effort to keep them the same. That's why most of the
> files are common. The fact that PA2.0 cpus can run PA1.1 kernel bits
> makes it easy for us. I'm *know* the R4000 MIPs processor had
> good backwards compatibility between 32/64-bit - don't know about
> later ones or Sparc/Sparc64.

We had a discussion of this in the meeting, but it's worth mentioning for
the record.  Ralf had two teams of people pulling at him -- one was the embedded
MIPS people who wanted to keep everything simple and small, and the other
was SGI who wanted 64-bit, SMP, scalability.  So MIPS vs MIPS64 is also a
tradeoff between make-it-small and make-it-fast.

For both Sparc & MIPS there was also the opportunity to discard
backwards-compatibility stuff.  Compare the Sparc64 and Sparc32 atomic_t
operations.  The changes between PA-RISC and PA-RISC64 really aren't
as major.  There aren't many places we could remove cruft by guaranteeing
we're omitting certain types of processor.

It would almost certainly make sense to have a `parisc1.0' architecture
if someone were crazy enough to do that :-)

> The Processor family selection is a good idea regardless of
> how arch/parisc* source is organized.

Thanks.

-- 
Revolutions do not require corporate support.




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Matthew Wilcox wrote:
> Ralf had two teams of people pulling at him -- one was the embedded
> MIPS people who wanted to keep everything simple and small, and the other
> was SGI who wanted 64-bit, SMP, scalability.  So MIPS vs MIPS64 is also a
> tradeoff between make-it-small and make-it-fast.

Ok. Internally, HPUX had a similar conflict along different lines:
	workstation vs server


> The changes between PA-RISC and PA-RISC64 really aren't as major.

That's true. We depend alot on the compiler to do most of the work so far.
Future work is to identify locations where the compiler isn't doing
a good enough job for a particular arch.

> There aren't many places we could remove cruft by guaranteeing
> we're omitting certain types of processor.

Agreed.

> It would almost certainly make sense to have a `parisc1.0' architecture
> if someone were crazy enough to do that :-)

or V-class. But a "parisc/kernelSPP" directory might be sufficient.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Unregister driver patch
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Matthieu Delahaye wrote:
> Here is a patch which implements the unregister_driver() function.

Matthieu,
That's excellent!

But no patch was attached. Please post!

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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This is a multi-part message in MIME format.
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Grant Grundler wrote:

> Matthieu Delahaye wrote:
> > Here is a patch which implements the unregister_driver() function.
>
> Matthieu,
> That's excellent!
>
> But no patch was attached. Please post!
>

Yes, it's not the first time! The problem was between my keyboard and my
chair ;-)
More over, I reposted it before your answer... to myself only... Sorry.
I think holidays aren't good for me.

Matthieu

>
> thanks,
> grant
>
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

--------------6502D643E70F51A324AA0CCC
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diff -Nru linux.old/arch/parisc/kernel/drivers.c linux.new/arch/parisc/kernel/drivers.c
--- linux.old/arch/parisc/kernel/drivers.c	Sat Feb 10 18:13:25 2001
+++ linux.new/arch/parisc/kernel/drivers.c	Sat Feb 24 16:40:03 2001
@@ -57,17 +57,23 @@
 		** The list gets built in reverse order...ideally, it shouldn't
 		** matter but reality will eventually rear it's ugly head.
 		*/
+		if(driver->next) {
+			BUG();
+			printk(KERN_WARNING "Warning: %s %s was already registered. Skiping.\n", driver->name,driver->version);
+			continue; 
+		}
+		
 		driver->next = pa_drivers;
 		pa_drivers = driver;
 
 		for (i=0; i < num_devices; i++) {
 			device = &pa_devices[i];
 
-			if (device->managed)			continue;
+			if ((int)device->driver) continue;
 			if (0 == compare_spec(device, driver))	continue;
 
 			if ( (*driver->callback)(device,driver) ==0) {
-				device->managed=1;
+				device->driver=driver;
 			} else {
 				printk("Warning : device (%d, 0x%x, 0x%x, 0x%x, 0x%x) NOT claimed by %s %s\n",
 					device->hw_type,
@@ -77,6 +83,42 @@
 			}
 		}
 	}
+	
+	return 0;
+}
+
+
+
+int unregister_driver(struct pa_iodc_driver *driver)
+{
+	int i;
+	struct hp_device * device;
+	struct pa_iodc_driver * drv;
+	
+	for(;driver->check;driver++) {
+		drv=pa_drivers;
+		if(pa_drivers==driver) {
+			pa_drivers=driver->next;
+		} else {
+			while(drv!=NULL && driver!=drv->next) {
+				drv=drv->next;
+			}
+
+			if(drv==NULL) {
+				printk(KERN_WARNING "unregister_driver: %s %s wasn't registered\n", driver->name, driver->version);
+				continue;
+			} else {
+				drv->next=driver->next;
+				driver->next=NULL;
+			}
+			
+		}
+	    
+		for (i=0; i < num_devices; i++) {
+			device = &pa_devices[i];
+			if (device->driver==driver) device->driver=NULL;
+		}
+	}
 	return 0;
 }
 
@@ -127,7 +169,7 @@
 	d->sversion_rev = iodc_data[4]>>4;
 	d->opt = iodc_data[7];
 	d->hpa = (void *) hpa;
-	d->managed = 0;
+	d->driver = NULL;
 	d->reference = parisc_get_reference(d->hw_type,
 					d->hversion, d->sversion);
 
@@ -145,16 +187,16 @@
 {
 	struct pa_iodc_driver *driver = pa_drivers;
 
-	while ((0 == hp_dev->managed) && (NULL != driver)) {
+	while ((NULL == hp_dev->driver) && (NULL != driver)) {
 
 		if (compare_spec(hp_dev,driver))
-			hp_dev->managed =
-				((*driver->callback)(hp_dev,driver) == 0);
+			hp_dev->driver =
+				(((*driver->callback)(hp_dev,driver) == 0)?driver:NULL);
 
 		driver = driver->next;
 	}
 
-	return hp_dev->managed;
+	return (hp_dev->driver==driver);
 }
 
 struct hp_device *get_pa_dev(unsigned int index)
diff -Nru linux.old/include/asm-parisc/hardware.h linux.new/include/asm-parisc/hardware.h
--- linux.old/include/asm-parisc/hardware.h	Sat Feb 10 18:14:08 2001
+++ linux.new/include/asm-parisc/hardware.h	Sat Feb 24 16:43:00 2001
@@ -22,7 +22,7 @@
 	unsigned int	sversion_rev;
 	struct hp_hardware *reference;  /* This is a pointer to the
                                             reference */
-	unsigned int	managed; /* this is if the device has a driver for it */
+	struct pa_iodc_driver *driver; /* this is if the device has a driver for it */
 
 	unsigned int	num_addrs;	/* some devices have additional address ranges, */
 	unsigned long	addr[MAX_ADD_ADDRS]; /* which will be stored here */
@@ -113,6 +113,7 @@
 extern struct hp_device *get_pa_dev(unsigned int index);
 extern void print_pa_devices(char * buf);
 extern int register_driver(struct pa_iodc_driver *driver);
+extern int unregister_driver(struct pa_iodc_driver *driver);
 
 /* inventory.c: */
 extern void do_inventory(void);

--------------6502D643E70F51A324AA0CCC--





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Subject: Re: [parisc-linux] Unregister driver patch
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Matthieu Delahaye wrote:
> I think holidays aren't good for me.

hmmm...maybe not. ;^)

I'll apply the patch tomorrow barring major objections.
The patch looks good to me (with one nit noted below).
Thanks!


> -			if (device->managed)			continue;
> +			if ((int)device->driver) continue;

I'll change this to:
		if (NULL != device->driver) continue;

device->driver is a pointer and should certainly not be cast to an int
in this case. For 64-bit, we will loose the upper half of the address
and we want to test the entire address. Even if it worked, I wouldn't
want to risk it not working in the future.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Grant Grundler <grundler@cup.hp.com>
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Subject: Re: [parisc-linux] Unregister driver patch
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Hi Matthieu,
Ok. I lied. One more issue with the patch in register_pa_dev().

Matthieu Delahaye wrote:
> @@ -145,16 +187,16 @@
>  {
>  	struct pa_iodc_driver *driver = pa_drivers;
>  
> -	while ((0 == hp_dev->managed) && (NULL != driver)) {
> +	while ((NULL == hp_dev->driver) && (NULL != driver)) {
>  
>  		if (compare_spec(hp_dev,driver))
> -			hp_dev->managed =
> -				((*driver->callback)(hp_dev,driver) == 0);
> +			hp_dev->driver =
> +				(((*driver->callback)(hp_dev,driver) == 0)?driv
>   er:NULL);
>  
>  		driver = driver->next;
>  	}
>  
> -	return hp_dev->managed;
> +	return (hp_dev->driver==driver);

In the case a device is managed,  "driver" points to "->next" after
we exit the loop and we end up returning false.  Right?

I think "return (NULL != hp_dev->driver)" is the correct code.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Matthieu Delahaye <delahaym@esiee.fr>
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Subject: Re: [parisc-linux] Unregister driver patch
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Grant Grundler wrote:
> 
> Hi Matthieu,
> Ok. I lied. One more issue with the patch in register_pa_dev().
> 
> Matthieu Delahaye wrote:
> > @@ -145,16 +187,16 @@
> >  {
> >       struct pa_iodc_driver *driver = pa_drivers;
> >
> > -     while ((0 == hp_dev->managed) && (NULL != driver)) {
> > +     while ((NULL == hp_dev->driver) && (NULL != driver)) {
> >
> >               if (compare_spec(hp_dev,driver))
> > -                     hp_dev->managed =
> > -                             ((*driver->callback)(hp_dev,driver) == 0);
> > +                     hp_dev->driver =
> > +                             (((*driver->callback)(hp_dev,driver) == 0)?driv
> >   er:NULL);
> >
> >               driver = driver->next;
> >       }
> >
> > -     return hp_dev->managed;
> > +     return (hp_dev->driver==driver);
> 
> In the case a device is managed,  "driver" points to "->next" after
> we exit the loop and we end up returning false.  Right?
> 
> I think "return (NULL != hp_dev->driver)" is the correct code.
> 
You're right. I couldn't test this function because I didn't find a way
to add devices only after some drivers were already registered.

Matthieu

> grant
> 
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253




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From: Thomas Marteau <marteaut@esiee.fr>
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Hi all,

	Back to school, we tried the last cvs! And the good news are:
- SMP works fine with our A500 :) You will find our dmesg and cpuinfo at
the end!
- 712 boots with the new source.

But, we still have the circular dependency and warning messages about
string.h:

/home/mkltom/cvs/linux/include/linux/string.h:27: warning: conflicting
types for built-in function `strncpy'
/home/mkltom/cvs/linux/include/linux/string.h:33: warning: conflicting
types for built-in function `strncat'
/home/mkltom/cvs/linux/include/linux/string.h:39: warning: conflicting
types for built-in function `strncmp'
/home/mkltom/cvs/linux/include/linux/string.h:61: warning: conflicting
types for built-in function `memset'
/home/mkltom/cvs/linux/include/linux/string.h:64: warning: conflicting
types for built-in function `memcpy'
/home/mkltom/cvs/linux/include/linux/string.h:73: warning: conflicting
types for built-in function `memcmp'

All the compilation has been made by xc-devel-20010215-2.tar.gz
available on pehc

Bye, Thomas
ESIEE Team

Lot of work to do, but soon a new file system will be made at
esiee.fr/puffin (I hope)

DMESG:
The 64-bit Kernel has started...
FP[0] enabled: Rev 1 Model 16
Free memory starts at: 0x1040e000
start_parisc(0x504d70,0x504d70,0x0,0x0)
PALO command line: 'init=/bin/sh HOME=/ TERM=LINUX console=ttyS0
root=/dev/sda3'
PALO initrd 0-0
model   00005d50 00000491 00000000 00000001 5e936f38 100000f0 00000008
000000b2 000000b2
vers    00000301
cpuid   0000024b
CPUID   vers 18 rev 11
model   9000/800/A500-5X
Searching for devices in PDC firmware... processor hpa
0xfffffffffffa0000
Found devices:
1. Crescendo 550 (0) at 0xfffffffffffa0000, versions 0x5d5, 0x0, 0x4,
0x0, 0x91
2. Crescendo 550 (0) at 0xfffffffffffa2000, versions 0x5d5, 0x0, 0x4,
0x0, 0x91
3. Crescendo Memory (1) at 0xfffffffffed08000, versions 0x9b, 0x0, 0x9,
0x0, 0x0
4. Astro BC Runway Port (12) at 0xfffffffffed00000, versions 0x582, 0x0,
0xb, 0x0, 0x10
5. Elroy PCI Bridge (13) at 0xfffffffffed30000, versions 0x782, 0x0,
0xa, 0x0, 0x0
6. Elroy PCI Bridge (13) at 0xfffffffffed34000, versions 0x782, 0x0,
0xa, 0x0, 0x0
7. Elroy PCI Bridge (13) at 0xfffffffffed38000, versions 0x782, 0x0,
0xa, 0x0, 0x0
8. Elroy PCI Bridge (13) at 0xfffffffffed3c000, versions 0x782, 0x0,
0xa, 0x0, 0x0
That's a total of 8 devices.
CPU(s): 2 x PA8600 (PCX-W+) at 550.000000 MHz
Linux version 2.4.0 (a500@pc5158a) (gcc version 2.97 20010128
(experimental)) #4 SMP Mon Feb 26 12:22:43 CET 2001
free_bootmem(0x412000, 0x1fbee000)
pagetable_init
On node 0 totalpages: 131072
zone(0): 65536 pages.
zone(1): 65536 pages.
zone(2): 0 pages.
Kernel command line: init=/bin/sh HOME=/ TERM=LINUX console=ttyS0
root=/dev/sda3
Calibrating delay loop... 1097.72 BogoMIPS
Memory: 500652k available
Dentry-cache hash table entries: 65536 (order: 8, 1048576 bytes)
Buffer-cache hash table entries: 32768 (order: 6, 262144 bytes)
Page-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 32768 (order: 7, 524288 bytes)
POSIX conformance testing by UNIFIX
SMP: bootstrap CPU ID is 0
FP[1] enabled: Rev 1 Model 16
SMP: Total 2 of 2 processors activated (2195.46 BogoMIPS noticed).
lba version TR4.0 (0x5) found at 0xfffffffffed30000
lba range[2] : ignoring GMMIO (0xfffffff804000000)
PCI: dev Symbios Logic Inc. (formerly NCR) 53c896 type 64-bit
PCI: dev Symbios Logic Inc. (formerly NCR) 53c896 (#2) type 64-bit
PCI: dev Symbios Logic Inc. (formerly NCR) 53c896 type 64-bit
PCI: dev Symbios Logic Inc. (formerly NCR) 53c896 (#2) type 64-bit
lba version TR4.0 (0x5) found at 0xfffffffffed34000
lba range[2] : ignoring GMMIO (0xfffffff904000000)
lba version TR4.0 (0x5) found at 0xfffffffffed38000
lba range[2] : ignoring GMMIO (0xfffffffa04000000)
lba version TR4.0 (0x5) found at 0xfffffffffed3c000
lba range[2] : ignoring GMMIO (0xfffffffb04000000)
SBA found Astro 2.1 at 0xfffffffffed00000
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
PCIBIOS: Enabling device 00:04.0 (0146 -> 0147)
ttyS00 at port 0x0040 (irq = 132) is a 16550A
PCIBIOS: Enabling device 00:05.0 (0000 -> 0143)
ttyS01 at port 0x0500 (irq = 133) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
Linux Tulip driver version 0.9.13 (January 2, 2001)

/* END */

CPUINFO:
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8600 (PCX-W+)
cpu MHz         : 550.000000
model           : 9000/800/A500-5X
model name      : Crescendo 550
hversion        : 0x00005d50
sversion        : 0x00000491
I-cache         : 512 KB
D-cache         : 1024 KB (WB)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
bogomips        : 1097.72
processor       : 1
cpu family      : PA-RISC 2.0
cpu             : PA8600 (PCX-W+)
cpu MHz         : 550.000000
model           : 9000/800/A500-5X
model name      : Crescendo 550
hversion        : 0x00005d50
sversion        : 0x00000491
I-cache         : 512 KB
D-cache         : 1024 KB (WB)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
bogomips        : 1097.72

/* END */




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Subject: Re: [parisc-linux] Unregister driver patch
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	parisc-linux@thepuffingroup.com
To: Grant Grundler <grundler@cup.hp.com>
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On Sun, Feb 25, 2001 at 08:30:55PM -0800, Grant Grundler wrote:
> > -			if (device->managed)			continue;
> > +			if ((int)device->driver) continue;
> 
> I'll change this to:
> 		if (NULL != device->driver) continue;

we definitely don't want to cast this to an int.  But what's wrong with

if (device->driver)
	continue;

it reads properly `if device has driver then continue'.  Sure, it's complex
to think about if you try and puzzle it out `so, if i've assigned a value to
driver then it's not 0, so this is true in which case continue', but if you
just read it, it says what it means.

-- 
Revolutions do not require corporate support.




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: pipes
Date: Mon, 26 Feb 2001 17:57:01 +0000
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To: Alan Modra <alan@linuxcare.com.au>
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Mon Feb 26 10:56:42 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:10407

This is looking like a glibc/kernel issue regardling the width
of the type returned by lseek():


I have a simple way of reproducing the bug now:

merlin:/build# echo 'if ( test  -r /dev/null ); then echo TRUE; fi;
echo Oops' | /bin/sh
TRUE
merlin:/build#


The echo parameter is split over two lines there, and should result
in two lines of output 'TRUE' and then 'Oops'.

/bin/sh picks up input with one read of 57 characters, and then
processes the string, char by char, via input.c:buffered_getchar(),
until it has the complete if..then..fi\n (about 46 characters). Then it
tries to stuff input following the 'fi\n' back on to the input stream by
doing an lseek(fd, -n, SEEK_CUR), before forking a child to do the
'test'.  On return from the child, it expects to pick up the input it
stuffed back on to the input stream.

The problem is that the input stream is a pipe, and lseek doesn't work.
bash should have decided that its input stream was not seekable and
dropped back to multiple reads of one byte.  It uses this test:

#  define fd_is_seekable(fd) (lseek ((fd), 0L, SEEK_CUR) >= 0)

and then

  if (fd_is_seekable (fd) == 0)
    size = 1;
  else
    size = (size_t)((sb.st_size > MAX_INPUT_BUFFER_SIZE) ? ...


Now for us lseek is of type __off64_t (from /usr/include/unistd.h),
although our kernel has sys_lseek() returning off_t, which is 32
bits.  Anyway, if I try to print the 64 bit return value from lseek()
I get 0x00000000ffffffe3.  The lower 32 bits is -ESPIPE, which is the
expected errno.  I don't know if glibc, kernel, or both are at fault
here.

Richard
 




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Subject: Re: [parisc-linux] Re: pipes
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On Mon, Feb 26, 2001 at 05:57:01PM +0000, Richard Hirst wrote:
> Now for us lseek is of type __off64_t (from /usr/include/unistd.h),
> although our kernel has sys_lseek() returning off_t, which is 32
> bits.  Anyway, if I try to print the 64 bit return value from lseek()
> I get 0x00000000ffffffe3.  The lower 32 bits is -ESPIPE, which is the
> expected errno.  I don't know if glibc, kernel, or both are at fault
> here.

Good catch!  The code in sys_lseek seems pretty explicit that it's only
going to return an off_t:

                loff_t res = llseek(file, offset, origin);
                retval = res;
                if (res != (loff_t)retval)
                        retval = -EOVERFLOW;    /* LFS: should only happen on 32
 bit platforms */

and our off_t is:
include/asm-parisc/posix_types.h:typedef long                   __kernel_off_t;

So /usr/include/unistd.h is wrong.  lseek is not 64-bit.

Another way of fixing this would be to make off_t 64-bit... i suspect
that might have performance implications though.

-- 
Revolutions do not require corporate support.




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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SMP: We have ignition
Date: Tue, 27 Feb 2001 10:36:17 +1100 (EST)
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On Mon, 26 Feb 2001, Thomas Marteau wrote:

> /home/mkltom/cvs/linux/include/linux/string.h:27: warning: conflicting
> types for built-in function `strncpy'

These messages are harmless (but annoying!).  gcc is complaining about the
`len' param which for the built-in functions is `int', but the kernel
headers effectively use `long'

Alan
-- 
Linuxcare.  Support for the Revolution.





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> On Mon, 26 Feb 2001, Thomas Marteau wrote:
> 
> > /home/mkltom/cvs/linux/include/linux/string.h:27: warning: conflicting
> > types for built-in function `strncpy'
> 
> These messages are harmless (but annoying!).  gcc is complaining about the
> `len' param which for the built-in functions is `int', but the kernel
> headers effectively use `long'

Why isnt gcc prototyping and defining

	__memcpy
	__strncpy

and #defining them across in libc header files ?

Is there a 'dont use builtins' flag ?





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On Tue, 27 Feb 2001, Alan Cox wrote:

> Why isnt gcc prototyping and defining
> 
> 	__memcpy
> 	__strncpy
> 
> and #defining them across in libc header files ?

Huh?

> Is there a 'dont use builtins' flag ?

-fno-builtin

I'd be inclined to do this instead

--- include/asm-parisc/posix_types.h~	Tue Dec  5 13:13:45 2000
+++ include/asm-parisc/posix_types.h	Tue Feb 27 23:30:11 2001
@@ -19,10 +19,17 @@
 typedef int			__kernel_clock_t;
 typedef int			__kernel_daddr_t;
 /* Note these change from narrow to wide kernels */
+#ifdef __LP64__
 typedef unsigned long		__kernel_size_t;
 typedef long			__kernel_ssize_t;
 typedef long			__kernel_ptrdiff_t;
 typedef long			__kernel_time_t;
+#else
+typedef unsigned int		__kernel_size_t;
+typedef int			__kernel_ssize_t;
+typedef int			__kernel_ptrdiff_t;
+typedef int			__kernel_time_t;
+#endif
 typedef char *			__kernel_caddr_t;
 
 typedef unsigned short		__kernel_uid16_t;





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 > Is there a 'dont use builtins' flag ?
> 
> -fno-builtin
> 
> I'd be inclined to do this instead

Careful, if you use different typings to everyone else you will get a million
printf format warnings instead




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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: Re: [parisc-linux] Initial setup of the `glibc' in the target rootfile   
 system
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Xref: news.gmane.org gmane.linux.ports.parisc:10413

To add some "light" here in the discussion.

The `user-defined-trusted-dirs=/lib' is exactly the "key" in the 
discussion. It tells the online running library loader (file
./elf/ld-load.c)
where to search the libraries. 

When building a cross tool chain and having the library install in
/usr/parisc/hppa-linux/lib, then the cross tool chain will search
there, but also the running programs, because this path is hard-coded
in the ld-load.c loader executable.

No my idea was, to give a "second search path" for the loader. So
the loader will search in /usr/parisc/hppa-linux/lib, will fail and
retry in /lib (as defined in `user-defined-trusted-dirs=/lib'). So also
the running binary on the target machine will access the glibc in /lib.

With friendly regards
	Christoph P.

PS: Of course the way of using --prefix=/usr and installing with 
install_root != /usr is a way, but lets say it, it is a HACK !!

The problems I have with many tools, is that they are not prepared
for cross-compiling very well. I need some evenings for bigger 
packages.


Ulrich Drepper wrote:
> 
> "Rafael E. Herrera" <raffo@neuronet.pitt.edu> writes:
> 
> > export MACH=i386-linux
> > export DEST=/usr
> > export ROOT=~/parisk
> >
> > HOSTCC=gcc CC=hppa-linux-gcc $ROOT/source/glibc/configure \
> > --prefix=$DEST --build=$MACH \
> > --host=hppa-linux --target=hppa-linux \
> > --with-headers=$ROOT/source/linux/include --disable-profile \
> > --without-cvs --enable-add-ons
> 
> This looks OK (though providing HOSTCC shouldn't be necessary) and
> --build, --host, and --target have no effect.  The configure script
> will pick up all it has to know from the CC value.
> 
> > make MAKE="make -j 10" user-defined-trusted-dirs=/lib
> 
> Providing make isn't necessary.  Also, the `user-defined-trusted-dirs'
> is not needed.  Just run
> 
>    make -j10
> 
> > make install user-defined-trusted-dirs=/lib \
> >  install_root=/tmp/glibc
> 
> Again, loose the `user-defined-trusted-dirs'.  Also, is /tmp/glibc
> where the nfsroot is picked up?  If not, just install in the nfsroot
> directory.
> 
> --
> ---------------.                          ,-.   1325 Chesapeake Terrace
> Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
> Red Hat          `--' drepper at redhat.com   `------------------------
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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Subject: [parisc-linux] Re: 2-way A500
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Thomas,

Please send full console output, lspci, and /proc/interrupt output.
I can provide pciutils binaries if you can't otherwise find/build them.

Thomas Marteau wrote:
> Hi Grant,
> 
> 	I noticed that if we put init=/bin/bash, we see this message:
> IRQ No handler for IRQ 128!

64-bit on A500?

If so, IRQ128 is IRQ0 in IRQ region 2 - ie first iosapic/PCI bus.
A device may have that line asserted for some reason.
I do expect that all drivers for boot devices have registered/claimed
the devices they should *before* init (/bin/bash) is invoked.

> It is true that in /proc/interrupts, no device is reported for this IRQ. The
> problem is that you do not have this problem with /bin/sh, afaik.

Interesting. Perhaps bash RC scripts is doing something different?
I don't see how bash or sh could otherwise generate IO interrupts.

> Also, I will appreciate if you could explain how works this file when it is a
> SMP kernel because I am a little lost :) (Everything is reported to CPU00 here!)

All IO interrupts are routed to the "monarch" (CPU 0) at the moment.
When things stabilize, I'll change the code so both processors share
the IO IRQ load.

ciao!
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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On Tue, 27 Feb 2001, Alan Cox wrote:

>  > Is there a 'dont use builtins' flag ?
> > 
> > -fno-builtin
> > 
> > I'd be inclined to do this instead
> 
> Careful, if you use different typings to everyone else you will get a million
> printf format warnings instead

Hmm, alpha, ia64, mips64, sparc64 and s390 use an `unsigned long'
__kernel_size_t while arm, i386, m68k, mips, ppc, sh and sparc use
`unsigned int'.  I think the precedent is there for us to use
`unsigned int' for 32 bit, and `unsigned long' for 64 bit.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.





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> Hmm, alpha, ia64, mips64, sparc64 and s390 use an `unsigned long'
> __kernel_size_t while arm, i386, m68k, mips, ppc, sh and sparc use
> `unsigned int'.  I think the precedent is there for us to use
> `unsigned int' for 32 bit, and `unsigned long' for 64 bit.

Ok




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This is a multi-part message in MIME format.
--------------50C17CC21C9542984B162495
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi Grant,

Grant Grundler wrote:
> 
> Thomas,
> 
> Please send full console output, lspci, and /proc/interrupt output.
> I can provide pciutils binaries if you can't otherwise find/build them.
The dmesg is attached!

> 
> Thomas Marteau wrote:
> > Hi Grant,
> >
> >       I noticed that if we put init=/bin/bash, we see this message:
> > IRQ No handler for IRQ 128!
> 
> 64-bit on A500?
Two processors 550 MHz 64 bits PA8600

> 
> If so, IRQ128 is IRQ0 in IRQ region 2 - ie first iosapic/PCI bus.
> A device may have that line asserted for some reason.
> I do expect that all drivers for boot devices have registered/claimed
> the devices they should *before* init (/bin/bash) is invoked.
Here is the official message
IRQ: CPU:0 No handler for IRQ 128 !

> 
> > It is true that in /proc/interrupts, no device is reported for this IRQ. The
> > problem is that you do not have this problem with /bin/sh, afaik.
> 
> Interesting. Perhaps bash RC scripts is doing something different?
> I don't see how bash or sh could otherwise generate IO interrupts.
I think that the bug could come from the bash and its capability with SMP

> 
> > Also, I will appreciate if you could explain how works this file when it is a
> > SMP kernel because I am a little lost :) (Everything is reported to CPU00 here!)
Here is /proc/interrupts but I need some help here
            IRQ count 
 64:      29818        160       PA-CPU-00  timer
 65:        488         30       PA-CPU-00  IPI
 66:        160        232       PA-CPU-00  IO-SAPIC00-L0
 67:         30         30       PA-CPU-00  IO-SAPIC00-L1
 68:          0        302       PA-CPU-00  IO-SAPIC00-L2
 69:        232          0       PA-CPU-00  IO-SAPIC00-L2
 70:         30          0       PA-CPU-00  IO-SAPIC00-L3
 71:        302          0       PA-CPU-00  IO-SAPIC00-L4
 72:          0          0       PA-CPU-00  IO-SAPIC00-L5
129:         30          0      IO-SAPIC00  sym53c8xx
130:        232          0      IO-SAPIC00  sym53c8xx
131:         30          0      IO-SAPIC00  sym53c8xx
132:        302          0      IO-SAPIC00  serial


As we see, everything is attached to PA-CPU-00!

> 
> All IO interrupts are routed to the "monarch" (CPU 0) at the moment.
> When things stabilize, I'll change the code so both processors share
> the IO IRQ load.
> 
> ciao!
> grant
> 
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
--------------50C17CC21C9542984B162495
Content-Type: text/plain; charset=us-ascii;
 name="dmes"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="dmes"

The 64-bit Kernel has started...
FP[0] enabled: Rev 1 Model 16
Free memory starts at: 0x1040e000
start_parisc(0x504d70,0x504d70,0x0,0x0)
PALO command line: 'init=/bin/sh HOME=/ TERM=LINUX console=ttyS0 root=/dev/sda3'
PALO initrd 0-0
model   00005d50 00000491 00000000 00000001 5e936f38 100000f0 00000008 000000b2 000000b2
vers    00000301
cpuid   0000024b
CPUID   vers 18 rev 11
model   9000/800/A500-5X
Searching for devices in PDC firmware... processor hpa 0xfffffffffffa0000
Found devices:
1. Crescendo 550 (0) at 0xfffffffffffa0000, versions 0x5d5, 0x0, 0x4, 0x0, 0x91
2. Crescendo 550 (0) at 0xfffffffffffa2000, versions 0x5d5, 0x0, 0x4, 0x0, 0x91
3. Crescendo Memory (1) at 0xfffffffffed08000, versions 0x9b, 0x0, 0x9, 0x0, 0x0
4. Astro BC Runway Port (12) at 0xfffffffffed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
5. Elroy PCI Bridge (13) at 0xfffffffffed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
6. Elroy PCI Bridge (13) at 0xfffffffffed34000, versions 0x782, 0x0, 0xa, 0x0, 0x0
7. Elroy PCI Bridge (13) at 0xfffffffffed38000, versions 0x782, 0x0, 0xa, 0x0, 0x0
8. Elroy PCI Bridge (13) at 0xfffffffffed3c000, versions 0x782, 0x0, 0xa, 0x0, 0x0
That's a total of 8 devices.
CPU(s): 2 x PA8600 (PCX-W+) at 550.000000 MHz
Linux version 2.4.0 (a500@pc5158a) (gcc version 2.97 20010128 (experimental)) #4 SMP Mon Feb 26 12:22:43 CET
 2001
free_bootmem(0x412000, 0x1fbee000)
pagetable_init
On node 0 totalpages: 131072
zone(0): 65536 pages.
zone(1): 65536 pages.
zone(2): 0 pages.
Kernel command line: init=/bin/sh HOME=/ TERM=LINUX console=ttyS0 root=/dev/sda3
Calibrating delay loop... 1097.72 BogoMIPS
Memory: 500652k available
Dentry-cache hash table entries: 65536 (order: 8, 1048576 bytes)
Buffer-cache hash table entries: 32768 (order: 6, 262144 bytes)
Page-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 32768 (order: 7, 524288 bytes)
POSIX conformance testing by UNIFIX
SMP: bootstrap CPU ID is 0
FP[1] enabled: Rev 1 Model 16
SMP: Total 2 of 2 processors activated (2195.46 BogoMIPS noticed).
lba version TR4.0 (0x5) found at 0xfffffffffed30000
lba range[2] : ignoring GMMIO (0xfffffff804000000)
PCI: dev Symbios Logic Inc. (formerly NCR) 53c896 type 64-bit
PCI: dev Symbios Logic Inc. (formerly NCR) 53c896 (#2) type 64-bit
PCI: dev Symbios Logic Inc. (formerly NCR) 53c896 type 64-bit
PCI: dev Symbios Logic Inc. (formerly NCR) 53c896 (#2) type 64-bit
lba version TR4.0 (0x5) found at 0xfffffffffed34000
lba range[2] : ignoring GMMIO (0xfffffff904000000)
lba version TR4.0 (0x5) found at 0xfffffffffed38000
lba range[2] : ignoring GMMIO (0xfffffffa04000000)
lba version TR4.0 (0x5) found at 0xfffffffffed3c000
lba range[2] : ignoring GMMIO (0xfffffffb04000000)
SBA found Astro 2.1 at 0xfffffffffed00000
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
PCIBIOS: Enabling device 00:04.0 (0146 -> 0147)
ttyS00 at port 0x0040 (irq = 132) is a 16550A
PCIBIOS: Enabling device 00:05.0 (0000 -> 0143)
ttyS01 at port 0x0500 (irq = 133) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
Linux Tulip driver version 0.9.13 (January 2, 2001)
PCIBIOS: Enabling device 00:00.0 (0140 -> 0143)
PCIBIOS: Setting latency timer of 00:00.0 to 128
eth0: Digital DS21143 Tulip rev 65 at 0x80, 00:30:6E:06:15:E3, IRQ 128.
eth0:  MII transceiver #1 config 1000 status 782d advertising 0061.
eth0:  Advertising 01e1 on PHY 1, previously advertising 0061.
eth0:  Advertising 01e1 (to advertise is 01e1).
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 2, function 0
sym53c8xx: setting PCI_COMMAND_IO...
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
sym53c8xx: 53c876 detected 
sym53c8xx: at PCI bus 0, device 2, function 1
sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...
sym53c8xx: setting PCI_COMMAND_MASTER PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
sym53c8xx: 53c876 detected 
sym53c8xx: at PCI bus 0, device 1, function 0
sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...
sym53c8xx: setting PCI_COMMAND_MASTER PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 1, function 1
sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...
sym53c8xx: setting PCI_COMMAND_MASTER PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: changing PCI_LATENCY_TIMER from 0 to 80.
sym53c8xx: 53c896 detected 
sym53c876-0: rev 0x14 on pci bus 0 device 2 function 0 irq 130
sym53c876-0: NCR clock is 40218KHz
sym53c876-0: ID 7, Fast-20, Parity Checking
sym53c876-0: on-chip RAM at 0xfffffffff8040000
sym53c876-0: restart (scsi reset).
sym53c876-0: Downloading SCSI SCRIPTS.
sym53c876-1: rev 0x14 on pci bus 0 device 2 function 1 irq 131
sym53c876-1: NCR clock is 40218KHz
sym53c876-1: ID 7, Fast-20, Parity Checking
sym53c876-1: on-chip RAM at 0xfffffffff8001000
sym53c876-1: restart (scsi reset).
sym53c876-1: Downloading SCSI SCRIPTS.
sym53c896-2: rev 0x7 on pci bus 0 device 1 function 0 irq 129
sym53c896-2: NCR clock is 40218KHz
sym53c896-2: ID 7, Fast-40, Parity Checking
sym53c896-2: on-chip RAM at 0xfffffffff8002000
sym53c896-2: restart (scsi reset).
sym53c896-2: handling phase mismatch from SCRIPTS.
sym53c896-2: Downloading SCSI SCRIPTS.
sym53c896-3: rev 0x7 on pci bus 0 device 1 function 1 irq 130
sym53c896-3: NCR clock is 40218KHz
sym53c896-3: ID 7, Fast-40, Parity Checking
sym53c896-3: on-chip RAM at 0xfffffffff8004000
sym53c896-3: restart (scsi reset).
sym53c896-3: handling phase mismatch from SCRIPTS.
sym53c896-3: Downloading SCSI SCRIPTS.
scsi0 : sym53c8xx - version 1.6b
scsi1 : sym53c8xx - version 1.6b
scsi2 : sym53c8xx - version 1.6b
scsi3 : sym53c8xx - version 1.6b
  Vendor: SEAGATE   Model: ST32151N          Rev: HP02
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym53c876-0-<3,0>: tagged command queue depth set to 8
  Vendor: SEAGATE   Model: ST39204LC         Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym53c896-3-<15,0>: tagged command queue depth set to 8
Detected scsi disk sda at scsi0, channel 0, id 3, lun 0
Detected scsi disk sdb at scsi3, channel 0, id 15, lun 0
sym53c876-0-<3,0>: sync msgout: 1-3-1-c-10.
sym53c876-0-<3,0>: sync msg in: 1-3-1-19-f.
sym53c876-0-<3,0>: sync: per=25 scntl3=0x30 scntl4=0x0 ofs=15 fak=0 chg=0.
sym53c876-0-<3,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 15)
sym53c876-0-<3,0>: sync msgout: 1-3-1-c-10.
sym53c876-0-<3,0>: sync msg in: 1-3-1-19-f.
sym53c876-0-<3,0>: sync: per=25 scntl3=0x30 scntl4=0x0 ofs=15 fak=0 chg=0.
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
Partition check:
 sda: sda1 sda2 sda3
sym53c896-3-<15,0>: wide msgout: 1-2-3-1.
sym53c896-3-<15,0>: wide msgin: 1-2-3-1.
sym53c896-3-<15,0>: wide: wide=1 chg=0.
sym53c896-3-<15,0>: wide msgout: 1-2-3-1.
sym53c896-3-<15,0>: wide msgin: 1-2-3-1.
sym53c896-3-<15,0>: wide: wide=1 chg=0.
sym53c896-3-<15,0>: sync msgout: 1-3-1-c-1f.
sym53c896-3-<15,0>: sync msg in: 1-3-1-c-1f.
sym53c896-3-<15,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c896-3-<15,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sdb: 17783112 512-byte hdwr sectors (9105 MB)
 sdb: unknown partition table
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 24Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
IP-Config: Incomplete network configuration information.
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended

--------------50C17CC21C9542984B162495--





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Xref: news.gmane.org gmane.linux.ports.parisc:10418

Thomas Marteau wrote:
> Here is /proc/interrupts but I need some help here
...
> As we see, everything is attached to PA-CPU-00!

Yes. That's expected behavior (for now). I wrote:
> > All IO interrupts are routed to the "monarch" (CPU 0) at the moment.
> > When things stabilize, I'll change the code so both processors share
> > the IO IRQ load.

that can probably happen pretty soon now. Next week or two.

...
> Linux Tulip driver version 0.9.13 (January 2, 2001)
> PCIBIOS: Enabling device 00:00.0 (0140 -> 0143)
> PCIBIOS: Setting latency timer of 00:00.0 to 128
> eth0: Digital DS21143 Tulip rev 65 at 0x80, 00:30:6E:06:15:E3, IRQ 128.
> eth0:  MII transceiver #1 config 1000 status 782d advertising 0061.
> eth0:  Advertising 01e1 on PHY 1, previously advertising 0061.
> eth0:  Advertising 01e1 (to advertise is 01e1).

eth0 knows it's using IRQ 128.  That's from pci_dev->irq.

Tulip driver does *not* call request_irq() to register it's IRQ handler
until the eth0 device is open()'d. That's why it doesn't show up in
/proc/interrupts.  The IRQ is probably not getting handled because
the RC scripts aren't getting invoked that would ifconfig the port.
But I don't know how/why tulip generates the interrupt.

I also didn't see the "official" msg in this console output:
> Here is the official message
> IRQ: CPU:0 No handler for IRQ 128 !

Where in the output does that msg normally appear?
Depending on where it appears, I might call it a tulip driver bug.

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Hi all,

        If you want a file system ready to use for emacs or lynx..., please
go to http://mkhppa1.esiee.fr/en/download.html (Now, you have the date of
fabrication for free :)

Bye, ESIEE Team





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From: Greg Ingram <ingram@symsys.com>
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Subject: [parisc-linux] include/asm/semaphore-helper.h
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Xref: news.gmane.org gmane.linux.ports.parisc:10420

Howdy,

I can't build the current CVS bits.  I get this message:

	make[1]: *** No rule to make target \
	`/usr/src/parisc/linux/include/asm/semaphore-helper.h', needed by \
	`semaphore.o'.  Stop.                                     

Is this file supposed to be created in the build process?  Or is the file
simply missing from my tree?

Regards,

- Greg






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Xref: news.gmane.org gmane.linux.ports.parisc:10421

On Wed, Feb 28, 2001 at 09:32:14AM -0600, Greg Ingram wrote:
> 
> Howdy,
> 
> I can't build the current CVS bits.  I get this message:
> 
> 	make[1]: *** No rule to make target \
> 	`/usr/src/parisc/linux/include/asm/semaphore-helper.h', needed by \
> 	`semaphore.o'.  Stop.                                     
> 
> Is this file supposed to be created in the build process?  Or is the file
> simply missing from my tree?


Have you tried a make distclean; make dep; sequence?

Richard





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On Wed, 28 Feb 2001, Richard Hirst wrote:

> On Wed, Feb 28, 2001 at 09:32:14AM -0600, Greg Ingram wrote:
> > 
> > Howdy,
> > 
> > I can't build the current CVS bits.  I get this message:
> > 
> > 	make[1]: *** No rule to make target \
> > 	`/usr/src/parisc/linux/include/asm/semaphore-helper.h', needed by \
> > 	`semaphore.o'.  Stop.                                     
> > 
> > Is this file supposed to be created in the build process?  Or is the file
> > simply missing from my tree?
> 
> 
> Have you tried a make distclean; make dep; sequence?

Argh!  No.  I did make palo.  When that didn't work I tried again with
make clean; make palo.  Okay, I've got an image now.

- Greg







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On Wed, Feb 28, 2001 at 12:57:53PM -0700, Helge Deller wrote:
> <p><b>CURRENT TO DO LIST</b></p>
> -<p><b>January 4, 2001</b></p>
> +<p><b>February 28, 2001</b></p>
> <p>Kernel</p>
> <ul>
> <li> rewrite semaphores -- both read/write and ordinary (Matthew)

the semaphores are already rewritten, but i refuse to touch the new website.

i thought this page was going to get removed anyway?

-- 
Revolutions do not require corporate support.




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Xref: news.gmane.org gmane.linux.ports.parisc:10424

Matthew Wilcox wrote:
> i thought this page was going to get removed anyway?

Not removed. Just the TODO list would go away as stuff gets
entered in the bug tracking system (bugs.parisc-linux.org for
those that haven't looked yet)

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: "Chris Moore" <cmoore@cancun.rose.hp.com>
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Subject: [parisc-linux] Another 735 hums to life
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Xref: news.gmane.org gmane.linux.ports.parisc:10425

After a lot of struggling I finally got my 735/99 up and running.
After even more struggling I got it to boot standalone off its
own internal SCSI disk and make it all the way to runlevel 2.

I am still having a few problems though.  I tried using dpkg
to install something and the process just seemed to hang.  I
saw the same thing when trying to compile something - don't
remember what.

So I guess my question is, is this to be expected?  Should I be
happy that I even got it to boot?  Or should I expect it to be
a fully functioning system?

While I'm at it, let me introduce myself to the list too.  I
currently work at HP doing support for the hpux kernel
(in WTEC, if that means anything to you).  Before this I was the
owner of the device drivers for SCSI tapes for hpux.  I'm
still new to Linux and just getting used to it, but hoping that
I'll be able to contribute to the development in the future.

Regards,

Chris Moore




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Subject: [parisc-linux] R: [parisc-linux-cvs] gdb amodra
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Xref: news.gmane.org gmane.linux.ports.parisc:10426

Hi all
were can I download /arch directory for my 712/60 ?
and were can I download a working version of linux thath work with video and
keyboard!
regards rino from Italy





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Another 735 hums to life
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Xref: news.gmane.org gmane.linux.ports.parisc:10427

On Wed, Feb 28, 2001 at 02:34:59PM -0800, Chris Moore wrote:
> After a lot of struggling I finally got my 735/99 up and running.
> After even more struggling I got it to boot standalone off its
> own internal SCSI disk and make it all the way to runlevel 2.
> 
> I am still having a few problems though.  I tried using dpkg
> to install something and the process just seemed to hang.  I
> saw the same thing when trying to compile something - don't
> remember what.

Does tar hang also?  If so it's probably the pthreads problem
that is affecting older machines (my 715/75, for example).  In
theory a new glibc should fix this, but when I tried things seemed
to get even worse - wouldn't even boot any more.  Havn't tried
for a couple of weeks though.

Richard





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From: ESIEE Puffin Group <puffin@esiee.fr>
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Subject: [parisc-linux] Puffin, we have a problem, here!
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Hi all,

	We write this mail to tell you that we MUST give back our A500 to the
European Department for HP resources for exhibition.

	In fact, this server was only for the Linux Expo Paris but we told them
that it was critical for th development of PA/Linux [specially for SMP
:^) ]. So they gave us one month more as it is said in the mail we
received today. Here is the French version:

je viens d'avoir l'accord de l'europe tu peux garder le serie A500
un mois de plus date de retour obligatoire le 5 mars !

Translation:

I just get the agreement from European staff. You can keep the A500 one
month more. Return date: 5 march!


	As you can see, we have a problem, here! If someone could help us in
our fight in order to keep this box, please do it...

ESIEE Team
Losing our baby :(




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From: Greg Ingram <ingram@symsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Another 735 hums to life
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Xref: news.gmane.org gmane.linux.ports.parisc:10429

Chris, et al.,

On Thu, 1 Mar 2001, Richard Hirst wrote:

> On Wed, Feb 28, 2001 at 02:34:59PM -0800, Chris Moore wrote:
> > After a lot of struggling I finally got my 735/99 up and running.
> > After even more struggling I got it to boot standalone off its
> > own internal SCSI disk and make it all the way to runlevel 2.
> > 
> > I am still having a few problems though.  I tried using dpkg
> > to install something and the process just seemed to hang.  I
> > saw the same thing when trying to compile something - don't
> > remember what.
> 
> Does tar hang also?  If so it's probably the pthreads problem
> that is affecting older machines (my 715/75, for example).  In
> theory a new glibc should fix this, but when I tried things seemed
> to get even worse - wouldn't even boot any more.  Havn't tried
> for a couple of weeks though.

I'm currently running the bins posted by our French amis and tar works.  
The more program still has the goofy stack (argv[-1]?) bomb and ncsd still
doesn't work.  I'm not familiar with nscd but it prevents me from using
adduser so I had to do all that the _real_ old fashioned way.  I used the
55 meg root filesystem and it had a root password set.  I had to boot the
old NFS-root fs so I could edit /etc/passwd on the new fs.  On the whole
it's a big improvement.  I can use the compiler now.  Next I'm going to
see if the C100 can compile its own kernel.

The ESIEE download site is:

	http://mkhppa1.esiee.fr/en/download.html

Regards,

- Greg





From - Thu Nov 08 21:16:46 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] (read|write)[bwl]
Date: Thu, 1 Mar 2001 19:54:22 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:10430

right now we do rsm / foo / mtsm in order to read/write gsc space.
the rsm/mtsm turns off address translation.  this is cripplingly slow
on PA8x00 series processors.

proposal 1:

leave gsc_* macros alone.  people can continue to use these if they want.
they should be aware these are slow though.

stop aliasing (read,write)[bwl] to the gsc_* variants.  they should
just dereference the address passed to them.

write an ioremap() function which provides a logical map to that area
of address space.

proposal 2:

direct-map the entire 0xfxxx'xxxx address space into the kernel's address
space.  ioremap becomes a NOP, gsc_* go away and (read,write)[bwl] become
as trivial as before.

i suspect we want proposal 1 on PA1.1 and proposal 2 on PA2.0.  This leads
to proposal 3 which should allow modules to work for either architecture:

gsc_* stay as calls to _gsc_*, (read,write)[bwl] become the direct memory
dereferences.  ioremap is a function call.  On PA2.0, the gsc space is
permanently mapped, the ioremap function does nothing and _gsc_* don't
mess with the system mask.  On PA1.1, we construct page table entries
for the io area upon calls to ioremap, and _gsc_* still mess with the
system mask.

Suggestions?

-- 
Revolutions do not require corporate support.




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From: Thomas Marteau <marteaut@esiee.fr>
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Xref: news.gmane.org gmane.linux.ports.parisc:10431

Hi Greg and all,

> 55 meg root filesystem and it had a root password set.  I had to boot the
> old NFS-root fs so I could edit /etc/passwd on the new fs.  On the whole
> it's a big improvement.  I can use the compiler now.  Next I'm going to
> see if the C100 can compile its own kernel.

Thanks for the feedback :)
For the password, it is not a very original one: toto
Like that, every one knows! No more old nfs needed :)

Bye, Thomas
ESIEE Team




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Subject: [parisc-linux] AHA-2742AT: happy noises...
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Xref: news.gmane.org gmane.linux.ports.parisc:10432

How about this?

[...]
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
SCSI subsystem driver Revision: 1.00
aic7xxx_detect
(scsi0) <Adaptec AHA-274X SCSI host adapter> found at EISA slot 1
(scsi0) Twin Channel, A SCSI ID 7, B SCSI ID 7, 4/255 SCBs
aic7xxx: Couldn't get consistent shared memory for SCB
aic7xxx: Couldn't get consistent shared memory for FIFO
(scsi0) Downloading sequencer code... 426 instructions downloaded
c01bb940 (aic7xxx?) called request_irq with an invalid irq 11
(scsi0) Couldn't register IRQ 11, ignoring controller.
[...]

Darn, I want those WAX interrupts...

/Daniel
-- 






From - Thu Nov 08 21:16:46 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] 64-bit issues
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I've been working on moving the bits from parisc64 across to parisc.
There's actually very little that needs to be moved.

In the process, I discovered several problems with parisc64 being out
of date.  One of them affects everyone who builds parisc64.  It wasn't
being compiled with the -mdisable-fpregs option, so it was using FP
code in the kernel, which is generally considered not a good idea.
But adding this requires gcc to call into $$mulI which wasn't part of our
64-bit libgcc.  Paul Bame's done this work, so now everyone compiling
64-bit will need a new compiler.  Matt Taggart's building one now and
you'll need to install it to build a 64-bit kernel.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:16:46 2018
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From: Paul Bame <bame@fc.hp.com>
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Subject: [parisc-linux] 64-bit compiler millicode update
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This affects people building 64-bit kernels after willy's (not yet
available) changes, whereupon the $$mulI millicode routine becomes
needed.

New cross compilers will soon be available, but if you just want to
get the millicode change and no others, replace your 64-bit libgcc.a
with [ftp|http]://puffin.external.hp.com/pub/parisc/binaries/libgcc.a.gz

	-P




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: New XC available was Re: [parisc-linux] 64-bit compiler millicode 
 update
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Paul Bame writes...

> 
> This affects people building 64-bit kernels after willy's (not yet
> available) changes, whereupon the $$mulI millicode routine becomes
> needed.
> 
> New cross compilers will soon be available, but if you just want to
> get the millicode change and no others, replace your 64-bit libgcc.a
> with [ftp|http]://puffin.external.hp.com/pub/parisc/binaries/libgcc.a.gz

The full xc with this change and also the recent glibc changes is now 
available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20010301.tar.gz

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Paul Bame <bame@fc.hp.com>
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Subject: [parisc-linux] Linux CVS partial cleanup
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Theoretically the vendor branch of Linux in CVS should match the upstream
tarballs from Linus.  I found there were lots of extra files on our
vendor branch due to older merges and
removed them from our vendor branch, which now diffs cleanly against
upstream.  If you grab old enough versions (prior to 2.4.0-test* perhaps)
it's possible you'll be missing some files because the removal I did
isn't time/tag-sequenced perfectly.  I can fix that for specific cases
if someone asks.

These changes are not visible on the main development branch, which is
as it should be.

		-P




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From: Greg Ingram <ingram@symsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C100 Self-Hosting
Date: Fri, 2 Mar 2001 13:48:36 -0600 (CST)
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Xref: news.gmane.org gmane.linux.ports.parisc:10437

I tried to self-host on my C100 with the recent root filesystem from
ISIEE.  The first problem was I needed the CVS bins.  I grabbed the
sources from Debian and the build went without a hitch.  I've posted a
tarball of (I hope) all of the relevant bits here:

	http://www.symsys.com/~ingram/linux/parisc/cvs.tar.gz

I checked out the linux and palo sources, configured the kernel and made
dependancies.  I ran into the following problems with 'make palo':

1)  arch/parisc/Makefile specifies the cross-compiler

I guess most people are using the cross-compiler so maybe it should stay
that way for now.  Anyway, once I commented out that line the kernel build
took off.

2)  conflicting types for mem{cmp|cpy|set} built-ins 

Lots and lots of warnings.  Should I add -fno-builtin?

3)  conflicting types for off_t in <stdio.h> and "linux/types.h"

I was able to dodge this error by defining '__off_t_defined' right before
including <stdio.h> in palo/lib/elf32.c.

And now [ drumroll ] the build succeeds and the self-built kernel boots.  

Woohoo!

- Greg










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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: New XC available was Re: [parisc-linux] 64-bit compiler millicode update
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On Thu, Mar 01, 2001 at 06:26:31PM -0700, Matt Taggart wrote:
> The full xc with this change and also the recent glibc changes is now 
> available at,
> 
> ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20010301.tar.gz

There's something wrong with the compiler:

/opt/palinux/lib/gcc-lib/hppa-linux/2.97/tradcpp0: /lib/libc.so.6:
	version `GLIBC_2.2' not found (required by
	/opt/palinux/lib/gcc-lib/hppa-linux/2.97/tradcpp0)

we're trying to track it down.  in the meantime, use your current toolchain
and the libgcc.a from /opt/palinux/lib/gcc-lib/hppa64-linux/2.97/

-- 
Revolutions do not require corporate support.




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From: "Randolph Chung" <randolph@tausq.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:10439

I have a function like this in a char driver:

static ssize_t stabledev_read(struct file *file, char *buf, size_t count,
	loff_t *ppos)
{
	char *kbuf;
	unsigned int size = 0;

	printk("stabledev_read: pos = %ld, count = %d\n", *ppos, count);
	printk("stabledev_read: pos = %ld\n", *ppos);
	printk("stabledev_read: count = %d\n", count);
	/* ... */
}

for some reason, the output i get from the above is:
stabledev_read: pos = 20536, count = 0
stabledev_read: pos = 1
stabledev_read: count = 4096

why is that?  this is a 32-bit kernel built using xc-20010215

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] sym53c8xx driver with 64-bit kernel on C200.
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Xref: news.gmane.org gmane.linux.ports.parisc:10440

Hello parisc-linux hackers,

I have been working on writing the PDC Translation functions so a 64-bit

kernel will run using 32-bit firmware.  I believe I have this done, and
I
am trying to verify my work by actually booting my C200 with a 64-bit
kernel.  Currently I am stuck in the sym53c8xx driver with a HPMC that
I am unable to debug and was hopeing someone on this list could provide
some insight, help debugging, etc.

I have located the single command that causes the HPMC in the
ncr_snooptest function.

This is the scsi boot output:

SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 19, function 0
sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...
sym53c8xx: setting PCI_COMMAND_MASTER...(fix-up)
sym53c8xx: 53c875 detected
sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 195
sym53c875-0: NCR clock is 40401KHz
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xfffffffff2ffe000

 /*
 ** Start script (exchange values)
 */
 OUTL (nc_dsa, np->p_ncb);
 OUTL (nc_dsp, pc);         <-- This line of code causes the HPMC
 /*
 ** Wait 'til done (with timeout)
 */
 for (i=0; i<NCR_SNOOP_TIMEOUT; i++)
  if (INB(nc_istat) & (INTF|SIP|DIP))
   break;
 /*

When I run OUTL(nc_dsp,pc) through the preprocessor the statement gets
expanded into this:

_gsc_writel(((__builtin_constant_p((__u32)((((pc))))) ? ({ __u32 __x =
(((((pc))))); ((__u32)( (((__u32)(__x) & (__u32)0x000000ffUL) << 24) |
(((__u32)(__x) & (__u32)0x0000ff00UL) << 8) | (((__u32)(__x) &
(__u32)0x00ff0000UL) >> 8) | (((__u32)(__x) & (__u32)0xff000000UL) >>
24) )); }) : __fswab32(((((pc))))))),(void *)((char *)np->reg +
(((size_t) &((struct ncr_reg *)0)->nc_dsp))));

The chassis codes for this HPMC are:
    0xcbf0          HPMC Occurred
    0x5002         Path Error: Processor 0
    0x7d03         Memory MSI read timeout
    0x5402         Path Error: IOA0
    0x5508         Broadcast Error: IOA1
    0xcbf4          Invalid HPMC checksum
    0xcbfc           PDCE_HPMC proccessing complete, but failed to branc
to OS_HPMC, halt this CPU

If I comment out that specific line of code, the cache test will fail,
but the boot process continues.
Here is the scsi output with the OUTL(nc_dsp,pc) commented out:

SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 19, function 0
sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...
sym53c8xx: setting PCI_COMMAND_MASTER...(fix-up)
sym53c8xx: 53c875 detected
sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 195
sym53c875-0: NCR clock is 40401KHz
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xfffffffff2ffe000
CACHE TEST FAILED: timeout.
CACHE INCORRECTLY CONFIGURED.
sym53c875-0: giving up ...
sim700: Configuring 53c710 (SCSI-ID 7) at ffffffffffd06100, IRQ 150,
options 0
scsi0: Revision 0x2

The sim700 HPMC is caused by the following line of code in the
sim700_init_host function.

#if 1
    NCR_write32(DSP_REG, TARGDATA(HOST_ID)->ba->script+Ent_test1/4+3);
<-- This line of code causes the HPMC
#else
    NCR_write32(DSP_REG, TARGDATA(HOST_ID)->ba->script+Ent_test1/4);
#endif

When I run the NCR_write32 line through the preprocessor the statement
gets expanded into this:

{ unsigned long a = (unsigned long)(host->base) + (unsigned long)(0x2c);
u32 v = (hostdata->options & 0x00000001) ?
(__builtin_constant_p((__u32)(((u32)(((struct sim700_target *)
(hostdata->targets + ((7) << 12)))->ba->script+0x000004a0/4+3)))) ? ({
__u32 __x = ((((u32)(((struct sim700_target *) (hostdata->targets + ((7)
<< 12)))->ba->script+0x000004a0/4+3)))); ((__u32)( (((__u32)(__x) &
(__u32)0x000000ffUL) << 24) | (((__u32)(__x) & (__u32)0x0000ff00UL) <<
8) | (((__u32)(__x) & (__u32)0x00ff0000UL) >> 8) | (((__u32)(__x) &
(__u32)0xff000000UL) >> 24) )); }) : __fswab32((((u32)(((struct
sim700_target *) (hostdata->targets + ((7) <<
12)))->ba->script+0x000004a0/4+3))))) : (u32)(((struct sim700_target *)
(hostdata->targets + ((7) << 12)))->ba->script+0x000004a0/4+3); if
(sim700_debug & 0x0002) printk("NCR: %08x => %lx\n", v, a);
_gsc_writel((v),(void *)(a)); };


Also, the HPMC chassis codes are identical to the sym53c8xx problem.


Following the previous idea of commenting out the offending lines
produces this as the scsi boot up code:

SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 19, function 0
sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...
sym53c8xx: setting PCI_COMMAND_MASTER...(fix-up)
sym53c8xx: 53c875 detected
sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 195
sym53c875-0: NCR clock is 40401KHz
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xfffffffff2ffe000
CACHE TEST FAILED: timeout.
CACHE INCORRECTLY CONFIGURED.
sym53c875-0: giving up ...
sim700: Configuring 53c710 (SCSI-ID 7) at ffffffffffd06100, IRQ 150,
options 0
scsi0: Revision 0x2
Post test1, istat 00, sstat0 00, dstat 80
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: test 1 FAILED: dsps: exp 0xab93001d, got 0x00000000
scsi0: Chip register contents:
 (script[0] at virt 0000000011f20000, bus a8000)
 00  sien:  af  sdid:  00  scntl1:20  scntl0:cc
 04  socl:  00  sodl:  00  sxfer: 00  scid:  80
 08  sbcl:  00  sbdl:  00  sidl:  00  sfbr:  00
 0C  sstat2:00  sstat1:00  sstat0:00  dstat: 80
 10  dsa:   00000000
 14  ctest3:df  ctest2:21  ctest1:f0  ctest0:00
 18  ctest7:90  ctest6:00  ctest5:00  ctest4:00
 1C  temp:  00000000
 20  lcrc:  00  ctest8:20  istat: 02  dfifo: 00
 24  dbc:   00000000  dnad:  00000000  dsp:   00000000
 30  dsps:  00000000  scratch:00000000
 38  dcntl: c1  dwt:   00  dien:  3d  dmode: e0
 3C  adder: 00000000
Warning : device (10, 0x56, 0x0, 0x82, 0x0) NOT claimed by Lasi SCSI
53c710
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 67
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential

I have not taken this any further .... I just wanted to demonstrate that
line of code was causing the
HPMC.

Does anyone have any ideas on what might be causing this?  Any pointers
on how to continue
debugging this problem?

Thanks,

- Ryan

P.S. I have quite a bit of code in my local tree reguarding the
PDC translation and some 64-bit
driver cleanups.  I have been working on committing the 64-bit driver
cleanups ... I would
like to wait until I see the 64-bit kernel boot on the C200 before
I commit the PDC translation
code.  If anyone wants a patch from my local tree for the
PDC translation stuff, send me
email and I'll produce them a patch.







From - Thu Nov 08 21:16:47 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] sym53c8xx driver with 64-bit kernel on C200.
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On Sat, Mar 03, 2001 at 08:45:03PM -0700, Ryan Bradetich wrote:
> When I run OUTL(nc_dsp,pc) through the preprocessor the statement gets
> expanded into this:
> 
> _gsc_writel(((__builtin_constant_p((__u32)((((pc))))) ? ({ __u32 __x =
> (((((pc))))); ((__u32)( (((__u32)(__x) & (__u32)0x000000ffUL) << 24) |
> (((__u32)(__x) & (__u32)0x0000ff00UL) << 8) | (((__u32)(__x) &
> (__u32)0x00ff0000UL) >> 8) | (((__u32)(__x) & (__u32)0xff000000UL) >>
> 24) )); }) : __fswab32(((((pc))))))),(void *)((char *)np->reg +
> (((size_t) &((struct ncr_reg *)0)->nc_dsp))));

I guess you'd like this decoded?  Let's see.  `pc' is clearly not a constant,
so __builtin_constant_p returns false, so we can simplify this down to:

_gsc_writel(__fswab32(pc) ,
 (void *)((char *)np->reg + (((size_t) &((struct ncr_reg *)0)->nc_dsp))));

which leads me to ask `what value does `pc' have?'

I suspect you want to put debugging code in _gsc_writel to tell you where
you're trying to perform IO to.

My suspicion is that you're writing to the 32 bit IO space in 64-bit mode,
which is juts not going to work.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:16:47 2018
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Willy,

Thanks for decoding that for me.... it does make more sense now :)
Here is the debug messages I added to sym53c8xx.c

 pc  = NCB_SCRIPTH0_PHYS (np, snooptest);
 printk("pc: %x\n", pc);
 host_wr = 1;
 ncr_wr  = 2;
 /*
 ** Set memory and register.
 */
 np->ncr_cache = cpu_to_scr(host_wr);
 OUTL (nc_temp, ncr_wr);
 /*
 ** Start script (exchange values)
 */
 OUTL (nc_dsa, np->p_ncb);
 printk("val: %x\n", __fswab32(pc));
 printk("addr: %p\n", (void *)((char *)np->reg + (((size_t) &((struct ncr_reg
*)0)->nc_dsp))));
 OUTL (nc_dsp, pc);

And here is the scsi boot output:

SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 19, function 0
sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...
sym53c8xx: setting PCI_COMMAND_MASTER...(fix-up)
sym53c8xx: 53c875 detected
sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 195
sym53c875-0: NCR clock is 40401KHz
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xfffffffff2ffe000
pc: 98dd8
val: d88d0900
addr: fffffffff2ffd02c

Here is the function for _gsc_writel:
    void _gsc_writel(u32 val, void *addr)

So it appears to me the correct arguments are being passed to the _gsc_writel
function.
I'm not sure about the values being passed in, but the types look correct, and
the
address is properly sign extended.

- Ryan


Matthew Wilcox wrote:

> On Sat, Mar 03, 2001 at 08:45:03PM -0700, Ryan Bradetich wrote:
> > When I run OUTL(nc_dsp,pc) through the preprocessor the statement gets
> > expanded into this:
> >
> > _gsc_writel(((__builtin_constant_p((__u32)((((pc))))) ? ({ __u32 __x =
> > (((((pc))))); ((__u32)( (((__u32)(__x) & (__u32)0x000000ffUL) << 24) |
> > (((__u32)(__x) & (__u32)0x0000ff00UL) << 8) | (((__u32)(__x) &
> > (__u32)0x00ff0000UL) >> 8) | (((__u32)(__x) & (__u32)0xff000000UL) >>
> > 24) )); }) : __fswab32(((((pc))))))),(void *)((char *)np->reg +
> > (((size_t) &((struct ncr_reg *)0)->nc_dsp))));
>
> I guess you'd like this decoded?  Let's see.  `pc' is clearly not a constant,
> so __builtin_constant_p returns false, so we can simplify this down to:
>
> _gsc_writel(__fswab32(pc) ,
>  (void *)((char *)np->reg + (((size_t) &((struct ncr_reg *)0)->nc_dsp))));
>
> which leads me to ask `what value does `pc' have?'
>
> I suspect you want to put debugging code in _gsc_writel to tell you where
> you're trying to perform IO to.
>
> My suspicion is that you're writing to the 32 bit IO space in 64-bit mode,
> which is juts not going to work.
>
> --
> Revolutions do not require corporate support.





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From: Alan Modra <alan@linuxcare.com.au>
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On Fri, 2 Mar 2001, Greg Ingram wrote:

> 2)  conflicting types for mem{cmp|cpy|set} built-ins 
> 
> Lots and lots of warnings.  Should I add -fno-builtin?

No.  I haven't heard any complaints about my proposed change to fix the
warnings, so I'm going to commit it.

Alan Modra





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Xref: news.gmane.org gmane.linux.ports.parisc:10444

On Fri, 2 Mar 2001, Randolph Chung wrote:

> stabledev_read: pos = 20536, count = 0
> stabledev_read: pos = 1
> stabledev_read: count = 4096
> 
> why is that?  this is a 32-bit kernel built using xc-20010215

loff_t is `long long' on 32-bit parisc.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.





From - Thu Nov 08 21:16:47 2018
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Subject: Re: [parisc-linux] sym53c8xx driver with 64-bit kernel on C200.
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I also put some debug code in the _gsc_writel command as you
suggested ..... Here is the output (I let it run overnight because
the added debug to _gsc_writel caused the run-time to slow
down quite considerably (I let it run over night....)

SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 19, function 0
_gsc_writel val: 9804 addr: fffffffff2000064
_gsc_writel val: 9808 addr: fffffffff2000064
_gsc_writel val: 980c addr: fffffffff2000064
_gsc_writel val: 980c addr: fffffffff2000064
_gsc_writel val: 9804 addr: fffffffff2000064
sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...
_gsc_writel val: 9800 addr: fffffffff2000064
_gsc_writel val: 9804 addr: fffffffff2000064
sym53c8xx: setting PCI_COMMAND_MASTER...(fix-up)
_gsc_writel val: 9800 addr: fffffffff2000064
_gsc_writel val: 9804 addr: fffffffff2000064
sym53c8xx: 53c875 detected
sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 195
sym53c875-0: NCR clock is 40401KHz
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xfffffffff2ffe000
_gsc_writel val: ffffffff addr: fffffffff2ffd00c
pc: 98dd8
_gsc_writel val: 2000000 addr: fffffffff2ffd01c
_gsc_writel val: 800800 addr: fffffffff2ffd010
val: d88d0900
addr: fffffffff2ffd02c
_gsc_writel val: d88d0900 addr: fffffffff2ffd02c


Anyways hope this additional information provide some insight.

Thanks,

- Ryan


Ryan Bradetich wrote:

> Willy,
>
> Thanks for decoding that for me.... it does make more sense now :)
> Here is the debug messages I added to sym53c8xx.c
>
>  pc  = NCB_SCRIPTH0_PHYS (np, snooptest);
>  printk("pc: %x\n", pc);
>  host_wr = 1;
>  ncr_wr  = 2;
>  /*
>  ** Set memory and register.
>  */
>  np->ncr_cache = cpu_to_scr(host_wr);
>  OUTL (nc_temp, ncr_wr);
>  /*
>  ** Start script (exchange values)
>  */
>  OUTL (nc_dsa, np->p_ncb);
>  printk("val: %x\n", __fswab32(pc));
>  printk("addr: %p\n", (void *)((char *)np->reg + (((size_t) &((struct ncr_reg
> *)0)->nc_dsp))));
>  OUTL (nc_dsp, pc);
>
> And here is the scsi boot output:
>
> SCSI subsystem driver Revision: 1.00
> sym53c8xx: at PCI bus 0, device 19, function 0
> sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...
> sym53c8xx: setting PCI_COMMAND_MASTER...(fix-up)
> sym53c8xx: 53c875 detected
> sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 195
> sym53c875-0: NCR clock is 40401KHz
> sym53c875-0: ID 7, Fast-20, Parity Checking
> sym53c875-0: on-chip RAM at 0xfffffffff2ffe000
> pc: 98dd8
> val: d88d0900
> addr: fffffffff2ffd02c
>
> Here is the function for _gsc_writel:
>     void _gsc_writel(u32 val, void *addr)
>
> So it appears to me the correct arguments are being passed to the _gsc_writel
> function.
> I'm not sure about the values being passed in, but the types look correct, and
> the
> address is properly sign extended.
>
> - Ryan
>
> Matthew Wilcox wrote:
>
> > On Sat, Mar 03, 2001 at 08:45:03PM -0700, Ryan Bradetich wrote:
> > > When I run OUTL(nc_dsp,pc) through the preprocessor the statement gets
> > > expanded into this:
> > >
> > > _gsc_writel(((__builtin_constant_p((__u32)((((pc))))) ? ({ __u32 __x =
> > > (((((pc))))); ((__u32)( (((__u32)(__x) & (__u32)0x000000ffUL) << 24) |
> > > (((__u32)(__x) & (__u32)0x0000ff00UL) << 8) | (((__u32)(__x) &
> > > (__u32)0x00ff0000UL) >> 8) | (((__u32)(__x) & (__u32)0xff000000UL) >>
> > > 24) )); }) : __fswab32(((((pc))))))),(void *)((char *)np->reg +
> > > (((size_t) &((struct ncr_reg *)0)->nc_dsp))));
> >
> > I guess you'd like this decoded?  Let's see.  `pc' is clearly not a constant,
> > so __builtin_constant_p returns false, so we can simplify this down to:
> >
> > _gsc_writel(__fswab32(pc) ,
> >  (void *)((char *)np->reg + (((size_t) &((struct ncr_reg *)0)->nc_dsp))));
> >
> > which leads me to ask `what value does `pc' have?'
> >
> > I suspect you want to put debugging code in _gsc_writel to tell you where
> > you're trying to perform IO to.
> >
> > My suspicion is that you're writing to the 32 bit IO space in 64-bit mode,
> > which is juts not going to work.
> >
> > --
> > Revolutions do not require corporate support.
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux





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"David S. Miller" wrote:
> 
>    Date: Fri, 10 Nov 2000 11:12:20 +0000
>    From: Richard Hirst <rhirst@linuxcare.com>
> 
>    I've quoted the whole of Grants message below, so you can see the
>    context.  It looks like tulip is treating zero as meaning it
>    doesn't have anything to pci_unmap...
> 
> Thank you for the clarification.
> 
> Jeff, this is in fact a bug, please fix :-)

Fixed in the latest driver (which Alan has).

Some other drivers need fixing for this, too...

-- 
Jeff Garzik       | "You see, in this world there's two kinds of
Building 1024     |  people, my friend: Those with loaded guns
MandrakeSoft      |  and those who dig. You dig."  --Blondie




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Sorry, I meant to cc this list on
http://mail.nl.linux.org/linux-mm/2001-03/msg00011.html

if you're interested in the shared mmap issue, you can follow the thread
on that archive.

-- 
Revolutions do not require corporate support.




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From: Mattias Wadenstein <maswan@acc.umu.se>
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Subject: [parisc-linux] TODO-list entry of "HIL keyboard driver needs updating"
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I'm working on migrating the TODO list to the BTS, and I didn't found any
info on if this was active or old in the mailinglist archive or on IRC.

The entry is:

* HIL keyboard driver needs updating (Brian and Alex has access to
  HIL documentation)

If anyone knows what is means, please file it with the bug tracking system
unless it is solved already.

/Mattias Wadenstein





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From: "Brian S. Julin" <bri@mojo.calyx.net>
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Subject: [parisc-linux] TODO-list entry of "HIL keyboard driver needs updating"
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Hmmm... Brian might refer to me, but I do not know who Alex is.
The only other person who showed interest in the driver was
Helge Deller.  We do NOT have access to the HIL specs, and
the driver I would like to write will need more detail than that
gleaned from the BSD/linux/mklinux source code.  But, if the
below refers to another two people who DO have access to the
docs, then it would be nice if they would tell me what needs
to be done to get me access to them.

--
Brian S. Julin

On Fri, 15 Dec 2000, Helge Deller wrote:

> Hi Brian,
>
> I plan to remove the current HIL-keyboard-support from the kernel and would
> like to use your new linux-input-style driver instead.
> I've just checked and linux-input is now in our tree, so this would be a
> good time to add your code.
>
> The remaining question is currently, how much time you have had so far for
> this driver and if/when this code could be added to CVS ? If you need a
> helping hand please don't hesitate to ask me,
>
> Greetings,
>
> 	Helge Deller
>
> On Wednesday 01 November 2000 08:48, you wrote:
> > Probably best not to worry about cleaning keyboard drivers up too much.
> > The current USB code will be followed by linux-input style drivers at
> > some point.  In fact I started a HIL linux-input style driver, which
> > would abstract the PS2 port/HIL ports and allow a standard keyboard module
> > to be hooked into the abstracted serio port.  I will work on it more when
> > time permits.
> >
> > --
> > Brian S. Julin
>








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"Brian S. Julin" wrote:
> We do NOT have access to the HIL specs, and the driver I would like
> to write will need more detail than that gleaned from the 
> BSD/linux/mklinux source code.

If you have specific questions, I (or other HP employees) can try to
find you the answer(s). Since we had a working HIL driver, releasing
the HP docs for it was pretty low on the list.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Hi !                                                                  
                                                                      
  I'm working on a 715/50 with the ESIEE TEAM. /proc/cpuinfo reports  
0.50 Bogomips instead of the 50 reported during the boot of the kernel
of the 1st March . More over, the kernel is booting well with the     
nfsroot of the puffin but don't execute INIT with ESIEE root          
Filesystem ( freezing after mounting Root partition) .Replacing Init  
by /bin/sh didn't change anything. If anyone could explain these      
differences ??                                                        
                                                                      
I'm currently porting the SETI@home client for PaLinux :o)            
                                                                      
   Bye Bruno                                                          




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From: Alex deVries <alex@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] TODO-list entry of "HIL keyboard driver needs 
 updating"
Date: Mon, 05 Mar 2001 11:51:22 -0500
Organization: The Puffins at Linuxcare
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Cc: parisc-linux@lists.parisc-linux.org,
	Helge Deller <deller@gmx.de>, maswan@acc.umu.se
To: "Brian S. Julin" <bri@mojo.calyx.net>
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"Brian S. Julin" wrote:
> 
> Hmmm... Brian might refer to me, but I do not know who Alex is.
> The only other person who showed interest in the driver was
> Helge Deller.  We do NOT have access to the HIL specs, and
> the driver I would like to write will need more detail than that
> gleaned from the BSD/linux/mklinux source code.  But, if the
> below refers to another two people who DO have access to the
> docs, then it would be nice if they would tell me what needs
> to be done to get me access to them.

I'm Alex.

The reason that I think I have HIL specs is because it's mentioned in
the WAX documentation I have under NDA.  I can't send out copies of it,
but I can give information necessary for writing code.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Putting open source to work.




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From: "Brian S. Julin" <bri@mojo.calyx.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] TODO-list entry of "HIL keyboard driver needs 
 updating"
Date: Mon, 5 Mar 2001 12:26:46 -0500 (EST)
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To: Alex deVries <alex@linuxcare.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:10453

The main sticking point I have with the HIL hardware which
has an effect on the way I write the linux-input driver,
concerns whether or not there is a safe way for me to
leave the auto-polling enabled always, or whether it will have
to be turned off when a hil packet starts, and the driver
must go register a timer task to go poll the chip until
the packet is over.  It centers around a comment in the
BSD driver:

/*
 * Send a command to a device on the loop.
 * Since only one command can be active on the loop at any time,
 * we must ensure that we are not interrupted during this process.
 * Hence we mask interrupts to prevent potential access from most
 * interrupt routines and turn off auto-polling to disable the
 * internally generated poll commands.
 */

Amazingly, all the drivers I find seem to be happy to
tie up the CPU and busy wait on the HIL bus in some
places, which is "just not good"(tm).

Basically I need to know if there really is the chance
that during a packet send operation I will be interrupted
by an internally generated poll command, or if they were
just being paranoid.

BTW, writing drivers with nothing but other people's source
code to look at really is not my favorite activity.  I am always
left with the impression that there could be a hardware feature
that the other authors ignored that would make the code better
or simpler.  I am guessing that HP has managed to put
mountains of paperwork in the way of getting hardware docs,
and that my saying this won't help, but I am willing to sign
an NDA for the HIL docs.

Thanks,

P.S. I haven't been keeping tabs on things lately -- do we now have
loadable kernel modules and modutils working well?  Is the
kernel timer support up to par?  How in sync are the .debs
with the bi-monthly trashing of libc compatibility?

--
Brian S. Julin








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From: Mike Hibler <mike@fast.cs.utah.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] TODO-list entry of "HIL keyboard driver needs updating"
Date: Mon, 5 Mar 2001 11:27:36 -0700 (MST)
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To: alex@linuxcare.com, bri@mojo.calyx.net
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> Date: Mon, 5 Mar 2001 12:26:46 -0500 (EST)
> From: "Brian S. Julin" <bri@mojo.calyx.net>
> To: Alex deVries <alex@linuxcare.com>
> Subject: Re: [parisc-linux] TODO-list entry of "HIL keyboard driver needs updating"
> 
> 
> The main sticking point I have with the HIL hardware which
> has an effect on the way I write the linux-input driver,
> concerns whether or not there is a safe way for me to
> leave the auto-polling enabled always, or whether it will have
> to be turned off when a hil packet starts, and the driver
> must go register a timer task to go poll the chip until
> the packet is over.  It centers around a comment in the
> BSD driver:
> 
> /*
>  * Send a command to a device on the loop.
>  * Since only one command can be active on the loop at any time,
>  * we must ensure that we are not interrupted during this process.
>  * Hence we mask interrupts to prevent potential access from most
>  * interrupt routines and turn off auto-polling to disable the
>  * internally generated poll commands.
>  */
> 
> Amazingly, all the drivers I find seem to be happy to
> tie up the CPU and busy wait on the HIL bus in some
> places, which is "just not good"(tm).
> 

The doc clearly states that auto-polling must be disabled or you must be
certain that the timing of your data transfer does not interfere with the
polling.  The recommended way was to disable auto polling.

As for disabling interrupts, its been a long time and I'm not sure what the
hell we meant by "Hence we mask interrupts to prevent potential access
from most interrupt routines".  You may want to disable interrupts to get
on and off the loop as quick as possible to avoid dropping input chars.

> Basically I need to know if there really is the chance
> that during a packet send operation I will be interrupted
> by an internally generated poll command, or if they were
> just being paranoid.
> 

Just following directions! :-)  Don't think we ever tried it without
disabling auto polling, so I don't know what the consequences of
interfering with a poll would be, probably not good.

> BTW, writing drivers with nothing but other people's source
> code to look at really is not my favorite activity.  I am always
> left with the impression that there could be a hardware feature
> that the other authors ignored that would make the code better
> or simpler.  I am guessing that HP has managed to put
> mountains of paperwork in the way of getting hardware docs,
> and that my saying this won't help, but I am willing to sign
> an NDA for the HIL docs.
> 

Understandable.  Yes, we went for simple and straight-forward when writing
the drivers and didn't always exploit "special features" of the hardware.
My experience with such special HW features is that they make drivers more
complicated with little added benefit.

Anyway, I have been using the BSD HIL driver daily for 14 years or so now,
and haven't had any significant problems.

Mike




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] sym53c8xx driver with 64-bit kernel on C200.
Date: Mon, 5 Mar 2001 20:34:04 +0000
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To: Ryan Bradetich <rbradetich@uswest.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:10455

On Sat, Mar 03, 2001 at 08:45:03PM -0700, Ryan Bradetich wrote:
>  OUTL (nc_dsp, pc);         <-- This line of code causes the HPMC

That line triggers the 53c8xx to start fetching and
executing scripts from memory.

> The sim700 HPMC is caused by the following line of code in the
> sim700_init_host function.
> 
> #if 1
>     NCR_write32(DSP_REG, TARGDATA(HOST_ID)->ba->script+Ent_test1/4+3);
> <-- This line of code causes the HPMC

That line triggers the 53c7xx to start fetching and
executing scripts from memory.


Richard





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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: New XC available was Re: [parisc-linux] 64-bit compiler millicode 
 update
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Xref: news.gmane.org gmane.linux.ports.parisc:10456

Matthew Wilcox writes...

> On Thu, Mar 01, 2001 at 06:26:31PM -0700, Matt Taggart wrote:
> > The full xc with this change and also the recent glibc changes is now 
> > available at,
> > 
> > ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20010301.tar.g
> z
> 
> There's something wrong with the compiler:
> 
> /opt/palinux/lib/gcc-lib/hppa-linux/2.97/tradcpp0: /lib/libc.so.6:
> 	version `GLIBC_2.2' not found (required by
> 	/opt/palinux/lib/gcc-lib/hppa-linux/2.97/tradcpp0)
> 
> we're trying to track it down.  in the meantime, use your current toolchain
> and the libgcc.a from /opt/palinux/lib/gcc-lib/hppa64-linux/2.97/

OK, the problem was that I built the xc on a system running Debian unstable 
which has glibc 2.2.2. So the xc didn't work on systems with an older glibc. 
I'd always gotten away with it up until now. So from now on I will build all 
xc's on a system no newer than the Debian stable release (currently potato, 
glibc 2.1.3).

I have placed a new xc at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20010305.tar.gz

This xc includes Alan Modra's recent merge to upstream 20010204.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






From - Thu Nov 08 21:16:48 2018
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Subject: [parisc-linux] New native gcc debs
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I have built new hppa native gcc debs based on March 5th pehc cvs and placed 
them at,

ftp://puffin.external.hp.com/pub/parisc/binaries/new-debs/debian/

They are,

gcc-2.97-base_2.97-010203_all.deb
cpp-2.97_2.97-010203_hppa.deb
protoize_2.97-010203_hppa.deb
fixincludes_2.97-010203_hppa.deb
libobjc1_2.97-010203_hppa.deb
g++-2.97_2.97-010203_hppa.deb
libstdc++2.97_2.97-010203_hppa.deb
libstdc++2.97-dev_2.97-010203_hppa.deb
g77-2.97_2.97-010203_hppa.deb
libgcc297_2.97-010203_hppa.deb
gcc-2.97_2.97-010203_hppa.deb
cpp-2.97-doc_2.97-010203_all.deb
g77-2.97-doc_2.97-010203_all.deb
gcc-2.97-doc_2.97-010203_all.deb
gobjc-2.97_2.97-010203_hppa.deb
libstdc++2.97-dbg_2.97-010203_hppa.deb
libstdc++2.97-doc_2.97-010203_all.deb

After installing you'll need to,

- Remove the gcc package since it doesn't conflict on its own
   `dpkg -r gcc`
- Setup symlinks for gcc and cc
   `cd /usr/bin;ln -s gcc-2.97 gcc;ln -s gcc-2.97 cc`

I will fix both of these problems later. I have noticed that quite a few 
packages in Debian that use c++ don't seem to be 2.97(v3) clean yet. So far I 
can't build apt, jade, and ncurses.  I have been able to build quite a few 
other things though and I have placed the debs in the above directory.

Please report any problems you have.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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--==_Exmh_-11766026340
Content-Type: text/plain; charset=us-ascii

Hi,

I am attempting to build the bzip2 debian package I ran into a problem. The 
build creates the bzip2 executable and library and attempts to do some 
compression/decompression as a test. When it does I get the following page 
fault,

-----------------------------------------------------------------------------
do_page_fault() pid=24320 command='bzip2' type=15 address=0x00000006

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011000000000000001111
r0-3     00000000 4001babc 40003807 00000002
r4-7     4001a380 00087670 00087450 00000001
r8-11    faf00398 faf0038c 00000002 4001baf0
r12-15   4001bad0 00000000 000874b0 00000000
r16-19   00000000 00000001 00000000 4001a380
r20-23   4001a33e 00005a4c 400037d0 00000000
r24-27   faf00398 00000001 4001baf0 00076808
r28-31   4001b19e 00000037 faf00680 4002b1d7
sr0-3    0000077f 0000077f 00000000 0000077f
sr4-7    0000077f 0000077f 0000077f 0000077f

IASQ: 0000077f 0000077f IAOQ: 40003803 4000fddb
 IIR: 0c681098    ISR: 0000077f  IOR: 00000006
ORIG_R28: faf00001
-----------------------------------------------------------------------------

I have attached a tar.gz of the bzip2, libbz2.so.1.0, and a Makefile that 
repeats the problem, just unpack and run make on a hppa-linux system. If you 
want to rebuild(and repeat the actual problem) all you need to do is,

apt-get source bzip2
cd bzip2-1.0.1
dpkg-buildpackage

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation


--==_Exmh_-11766026340
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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] libpng test program causes page fault
Date: Tue, 06 Mar 2001 02:39:51 -0700
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When building the libpng debian package,

apt-get source libpng
cd libpng-1.0.8
dpkg-buildpackage

it builds a 'pngtest' program and attempts to run it resulting in this page 
fault,

------------------------------------------------------------------------------
do_page_fault() pid=29568 command='pngtest' type=6 address=0x0a000003
vm_start = 0x00005000, vm_end = 0x00007000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111
r0-3     00000000 40016f9c 40057ec7 faf003c0
r4-7     4001a380 000a6bf0 000a6c10 00000002
r8-11    faf001d4 faf001cc 00000001 4001baf0
r12-15   4001bad0 00000000 000a6c70 00000000
r16-19   00000000 00005000 00000000 4001a380
r20-23   0a000000 000048c8 0a000000 00000000
r24-27   faf001d4 faf001cc 00000001 00076808
r28-31   4001b1f2 00000037 faf00440 40057ec7
sr0-3    00004387 00004387 00000000 00004387
sr4-7    00004387 00004387 00004387 00004387

IASQ: 00004387 00004387 IAOQ: 0a000003 0a000007
 IIR: 43ffff80    ISR: 102400c9  IOR: 93700428
ORIG_R28: faf00001
------------------------------------------------------------------------------

The pngtest program is attached.

Thanks,


-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] libpng test program causes page fault
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--==_Exmh_-11742674900
Content-Type: text/plain; charset=iso-8859-1
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Matt Taggart writes...

> The pngtest program is attached.

Hmm, attachment didn't work. Here it is.


-- =

Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation


--==_Exmh_-11742674900
Content-Type: text/plain ; name="pngtest"; charset=iso-8859-1
Content-Description: pngtest
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="pngtest"

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--==_Exmh_-11742674900--






From - Thu Nov 08 21:16:49 2018
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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] bzip2 causes page fault
Date: Tue, 6 Mar 2001 21:07:08 +1100 (EST)
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To: Matt Taggart <taggart@carmen.fc.hp.com>
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On Tue, 6 Mar 2001, Matt Taggart wrote:

> I am attempting to build the bzip2 debian package I ran into a problem. The 
> build creates the bzip2 executable and library and attempts to do some 
> compression/decompression as a test. When it does I get the following page 
> fault,

When I run this, I get a page fault in a different place, in
libbz2.so.1.0:__do_global_ctors_aux, which is called from _init.
Disassembly of libbz2.so.1.0 reveals some nastiness in _init:

000000000000134c <_init>:
    134c:       6b c2 3f d9     stw rp,-14(sp)
    1350:       6f c3 00 80     stw,ma r3,40(sp)
    1354:       6b d3 3f c1     stw r19,-20(sp)
    1358:       e8 5f 1f bd     b,l 133c <_init-0x10>,rp
    135c:       08 13 02 43     copy r19,r3
    1360:       08 03 02 53     copy r3,r19
    1364:       e8 40 05 00     b,l 15ec <frame_dummy>,rp
    1368:       08 00 02 40     nop
    136c:       08 04 02 53     copy r4,r19
    1370:       e8 46 1c 18     b,l e184 <__do_global_ctors_aux>,rp
    1374:       08 00 02 40     nop
    1378:       08 04 02 53     copy r4,r19
    137c:       4b c2 3f 59     ldw -54(sp),rp
    1380:       08 03 02 53     copy r3,r19
    1384:       e8 40 c0 00     bv r0(rp)

0000000000001388 <_end_init>:
    1388:       4f c3 3f 81     ldw,mb -40(sp),r3

Notice how r19 is being saved in r3 at the start of this function, but
then restored from r4 before the call to __do_global_ctors_aux.  __init is
a little special, as it is cobbled together from crti.o (provides start
of function up to the frame_dummy call), the call to
__do_global_ctors_aux, and crtn.o (provides tail of function).  You
obviously have a mismatch :-O

To fix it, you'll need to recompile current pehc CVS glibc using the new
compiler, which will give you new crti.o and crtn.o  (And yeah, the fault
is mine - I broke our glibc sources for a while)

I strongly suspect your other crashes are caused by the same problem.

Alan Modra
-- 
Linuxcare.





From - Thu Nov 08 21:16:49 2018
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From: herrold <herrold@owlriver.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [HPADM] SUMMARY: firmware questions
Date: Tue, 6 Mar 2001 13:45:01 -0500 (EST)
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Xref: news.gmane.org gmane.linux.ports.parisc:10462

This crossed the HP-UX admin list in summary form today -- it is
somewhat longish, but it got me to thinking about firmware version
issues.

I was left with a couple of unanswerable (to me) questions:

Predicate: An arbitrary HP chassis, found on ebay or cast off at
work, will have no maintenance records, and be in an unknown state
as to firmware version.

1.  For porters:  I would infer that some of the code is
re-inventing firmware-fixpacks and firmware-state detection code
[consciously or not] for problems which have already been
indentified and perhaps solved, by HP.  Is this being well or
episodically addressed, and could it be done better?


2.  For HP-ers:  Is HP-corporate ameanable to general release and
application of fixpacks to the general population of HP-chassis
owners?  This answer may vary by host class -- i.e., if the
provision of fixpacks is a maintenance contract benefit, it may be
sensible only from HP's point of view to release only older
'end-of-life'd' class hosts without charge (they are no longer a
revenue stream item) -vs- release them all, recognizing that the GPL
feedback might provide a fix for an indentified but un-addressed
fixpack open issue.

I have left the HPUX-admin trailer intact for subscribers here
unaware of that list -- beware if subscribing -- lurk to learn their
ways

-- Russ Herrold



---------- Forwarded message ----------
Date: Tue, 06 Mar 2001 09:49:50 -0800
From: Tom Lieuallen <toml@engr.orst.edu>
To: hpux-admin@dutchworks.nl
Subject: [HPADM] SUMMARY: firmware questions


As usual, there were a number of quick and knowledgeable answers...
Thanks to:
  Henry Helfenbein
  Paul Alberts
  Eef Hartman
  Bill Hassell
  Jeff Cleverley

> A couple questions about HP workstation firmware:
>
> * If we have no problems with a workstation, should we leave it well
>   enough alone?  Or, should we be proactive and update them?
>
>   For reference, we're dealing with models like 712/80, C160, B132+, etc.
>
>   They're on their way out of our environment, in the next year or two,
>   so I'm not really _looking_ to do unnecessary work.
>

There wasn't concenus on this.

henry> It doesn't sound like you are experiencing any problems, so I wouldn't
henry> screw with it.

paul> You never know when budget issues might compel you to depend on
paul> these longer than expected.  I would update the firmware when it is
paul> convenient.

eef> We always let well alone. Especially as it concerns older models,
eef> so you probably won't be upgrading to the newest HP-UX 11 version
eef> either.  HP-UX 10.20 will never be needing that newer firmware...

bill>  HP does not release patches just to fill up disk space.
bill>  There are critical patches that should be installed and
bill>  they are sent automatically every two months (assuming you
bill>  have a support contract).  A sysadmin's job is to prevent
bill>  problems rather than react when mistakes are discovered.

bill>  A workstation is often less visible to an IT department as
bill>  "it's only one user" so patches get ignored along with
bill>  disk space management.  There are thousands of customers
bill>  still running versions of HP-UX that are not Y2K compliant
bill>  and the scary thought is that they won't know that some
bill>  reports and even regular backups are not working correctly
bill>  because the failures are silent--unless the sysadmin
bill>  checks every single cron job every day, and verifies every
bill>  line of data in the databases every day, there is likely
bill>  no way to know if something is not working right.

jeff> If it's not broke, don't fix it.

> * The various firmware patches/updates mention writing the firmware to
>   tape and booting from the tape.  Seems archaic.  :-)  Are there
>   alternative options such as loading the firmware in /stand or
>   somewhere on a network boot area?

henry> I administer about 20 C-class workstations that I haven't touched the
henry> firmware on yet. I upgraded the firware on a K580 here going from 39.11
henry> to 39.43 without any issues, but if you download the wrong model you
henry> can render the system useless. I saw something on this mailing list a
henry> few months back where somebody did just that. It sounded ugly!

henry> I downloaded my patch from HP's ITRC and put it on DDS DAT tape. No
henry> problems. I don't know of any other way to do it, since I only did that
henry> once just recently.

bill>  Not archaic at all.  The operating system is a massive
bill>  piece of software that isolates the hardware from the
bill>  software and it must always be running even to read a
bill>  simple file.  Updating processor firmware (the basic
bill>  instructions of the machine itself) must essentially stop
bill>  all execution of the opsystem while the changes are made.
bill>  But since the file with the firmware cannot be accessed
bill>  without the opsystem running, it's a Catch-22.  A tape is
bill>  a dumb device so the procssor ROMs just issue a simple
bill>  read and provide an I/O address.

eef> The problem is, while updating the firmware you are NOT running Unix,
eef> so you don't have a filesystem, nor networking.  The update program is
eef> total standalone, needs direct hardware access (which Unix normally
eef> reserves for the kernel ONLY).

eef> Even the "/stand" access for booting doesn't come out of the firmware
eef> but out of the "hpux" util in the IPL (which is soft-loaded onto the
eef> disk).  hpux-admin@dutchworks.nl

jeff> I don't know if it will work, but you could try putting it in /stand
jeff> and try booting like it was an alternate kernel.  We always did ours
jeff> from tape on the occasions we needed to do it.


> I'll summarize.

So, it sounds like the tape is the only way to go.  And, there are
conflicting opinions -- either "if isn't broke; don't fix it"
vs "HP knows best -- be proactive".

I believe I'll be updating firmware as convenient, starting with the
models that will be around the longest. :-)

thanks

Tom Lieuallen
Oregon State University

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From - Thu Nov 08 21:16:49 2018
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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [HPADM] SUMMARY: firmware questions
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herrold wrote:
> This crossed the HP-UX admin list in summary form today -- it is
> somewhat longish, but it got me to thinking about firmware version
> issues.
> 
> I was left with a couple of unanswerable (to me) questions:
> 
> Predicate: An arbitrary HP chassis, found on ebay or cast off at
> work, will have no maintenance records, and be in an unknown state
> as to firmware version.

It will be known a few moment after one powers on the box.

> 1.  For porters:  I would infer that some of the code is
> re-inventing firmware-fixpacks and firmware-state detection code
> [consciously or not] for problems which have already been
> indentified and perhaps solved, by HP.  Is this being well or
> episodically addressed, and could it be done better?

It's not being addressed for parisc-linux by anyone *yet*.
You are welcome to submit a wishlist bug at http://bugs.parisc-linux.org

In general, parisc-linux expects one to upgrade firmware "manually"
to the latest version. Firmware updates are simple and can be done
by booting LIF images available from HP's "CPU" support website (ftp really).
Warnings about downloading the wrong firmware rendering a box useless
are to be taken *very* seriously.


> 2.  For HP-ers:  Is HP-corporate ameanable to general release and
> application of fixpacks to the general population of HP-chassis
> owners?  This answer may vary by host class -- i.e., if the
> provision of fixpacks is a maintenance contract benefit, it may be
> sensible only from HP's point of view to release only older
> 'end-of-life'd' class hosts without charge (they are no longer a
> revenue stream item) -vs- release them all, recognizing that the GPL
> feedback might provide a fix for an indentified but un-addressed
> fixpack open issue.

I'm not sure what you mean by fixpack in the above context.

HP currently makes all firmware available for free and people
can download them for free. HP both fixes bugs and adds support
for new features in firmware updates. So reasons for updating
may vary.


...
> So, it sounds like the tape is the only way to go.

I've been doing all of my updates via the network - everything
from 712's to C3K and A500s.

One can also dd the firmware update image to a scratch
disk and boot from that instead of tape - it's *alot*
faster. :^)

> And, there are
> conflicting opinions -- either "if isn't broke; don't fix it"
> vs "HP knows best -- be proactive".

I fall into the latter camp. I know and trust the firmware guys
to fully test firmware before releasing it. And they have to be
since a failed download or broken firmware means the box is
rendered useless.

My experience to date has been pretty good overall - better than
HPUX networking patches for example. :^)

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Matthieu Delahaye <delahaym@esiee.fr>
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Subject: [parisc-linux] Recording with harmony
Date: Tue, 06 Mar 2001 22:55:06 +0100
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This is a multi-part message in MIME format.
--------------EB42E961D7878AECC355519F
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

If you want to record your voice on your favorite workstation :)
-- 
Matthieu Delahaye
ESIEE Team
http://www.esiee.fr/puffin
--------------EB42E961D7878AECC355519F
Content-Type: text/plain; charset=us-ascii;
 name="harmony.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="harmony.diff"

diff -Nru linux.old/drivers/sound/harmony.c linux.new/drivers/sound/harmony.c
--- linux.old/drivers/sound/harmony.c	Tue Mar  6 22:37:56 2001
+++ linux.new/drivers/sound/harmony.c	Tue Mar  6 22:41:27 2001
@@ -69,11 +69,13 @@
 	- modularisation, 
 	- cleanups
 
+2001-03-07: Matthieu Delahaye <delahaym@esiee.fr>
+        - added record functionality
+
 TODO:
 -----
 	- update/cleanup the above documentation
 	- fix CHECK_xxx functions -> use newer cache flushing functions 
-	- add recording functionality
 	- test if loading/unloading this driver as module works
 */
 
@@ -243,13 +245,21 @@
 	u8 sample_rate;
 	u8 stereo_select;	/* 1 = stereo, 0 = mono */
 	int format_initialized;
-	int suspended;
-	int blocked;
-	int done;
-	wait_queue_head_t wq;
-	int first_filled;	/* first buffer containing data (next to play) */
-	int nb_filled; 
+	int suspended_playing;
+	int suspended_recording;
 	
+	int blocked_playing;
+	int blocked_recording;
+	
+	int done;
+	wait_queue_head_t wq_play, wq_record;
+	int first_filled_play;	/* first buffer containing data (next to play) */
+	int nb_filled_play; 
+	int first_filled_record;
+	int nb_filled_record;
+	int playing;
+	int recording;
+		
 	int audio_open, mixer_open;
 	int dsp_unit, mixer_unit;
 };
@@ -262,13 +272,18 @@
 
 
 /* Until we have recording working, this is where we're putting the recording data. */
-static char graveyard[4096] 
-		__attribute__((aligned(4096)));
 
 static struct harmony_dev harmony;
 
-static unsigned char aligned_buf[MAX_BUFS * HARMONY_BUF_SIZE] 
-		__attribute__ ((aligned (HARMONY_BUF_SIZE))); 
+static unsigned char played_buf[MAX_BUFS * HARMONY_BUF_SIZE] 
+                     __attribute__ ((aligned (HARMONY_BUF_SIZE))); 
+static unsigned char recorded_buf[MAX_BUFS * HARMONY_BUF_SIZE]
+                     __attribute__ ((aligned (HARMONY_BUF_SIZE)));
+static char silent[HARMONY_BUF_SIZE] 
+		__attribute__((aligned(4096)));
+static char graveyard[HARMONY_BUF_SIZE] 
+		__attribute__((aligned(4096)));
+
 
 
 static void harmony_wait_CNTL(void)
@@ -347,12 +362,15 @@
 
 static int harmony_disable_interrupts(void) 
 {
+	harmony_wait_CNTL();
+	
 	gsc_writel(0, &(harmony.hpa->dstatus)); 
 	return 0;
 }
 
 static int harmony_enable_interrupts(void) 
 {
+	harmony_wait_CNTL();
 	gsc_writel(DSTATUS_IE, &(harmony.hpa->dstatus)); 
 	return 0;
 }
@@ -379,7 +397,7 @@
 		default:			silence_char = 0;
 	}
 
-	memset(aligned_buf+start, silence_char, length);
+	memset(played_buf+start, silence_char, length);
 	return 0;
 }
 
@@ -393,19 +411,28 @@
 	harmony.frames_so_far = 0;
 	harmony.done = 0; 
 	harmony.format_initialized = 0;
-	harmony.suspended = 0;
-	harmony.blocked = 0;
-	harmony.first_filled = 0;
-	harmony.nb_filled = 0;
-	init_waitqueue_head(&harmony.wq);
+	harmony.suspended_playing = 1;
+	harmony.blocked_playing = 0;
+	harmony.suspended_recording =1;
+	harmony.blocked_recording=0;
+	harmony.first_filled_play = 0;
+	harmony.nb_filled_play = 0;
+	harmony.first_filled_record = 0;
+	harmony.nb_filled_record = 0;
+	
+	init_waitqueue_head(&harmony.wq_play);
+	init_waitqueue_head(&harmony.wq_record);
 	
 	/* Start off in a balanced mode. */
 
+	harmony_set_control(HARMONY_DF_16BIT_LINEAR, HARMONY_SR_44KHZ, HARMONY_SS_STEREO);
+	harmony_update_control();
+
 	/* Clear out all the buffers and flush to cache */
-	harmony_silence(aligned_buf, 0, HARMONY_BUF_SIZE*MAX_BUFS);
-	CHECK_WBACK_INV(aligned_buf, HARMONY_BUF_SIZE*MAX_BUFS);
+	harmony_silence(played_buf, 0, HARMONY_BUF_SIZE*MAX_BUFS);
+	CHECK_WBACK_INV(played_buf, HARMONY_BUF_SIZE*MAX_BUFS);
 	
-	harmony_mixer_mute_all();
+//	harmony_mixer_mute_all();
 
 	harmony_wait_CNTL();
 
@@ -434,15 +461,52 @@
 
 static ssize_t harmony_audio_read(struct file *file,
                                 char *buffer,
-                                size_t count,
+                                size_t size_count,
                                 loff_t *ppos)
 {
-	DPRINTK(KERN_ERR "%s: invalid read\n", __FUNCTION__);
-	return -ENODEV;
+	int total_count = (int) size_count;
+	int count = 0;
+	int buf_to_read;
+
+	while (count<total_count) {
+		/* Wait until we're out of control mode */
+		harmony_wait_CNTL();
+		
+		/* Figure out which buffer to fill in */
+		
+		if(harmony.nb_filled_record<=2) {
+			harmony.blocked_recording = 1;
+		        if(harmony.suspended_recording) {
+				harmony.suspended_recording=0;
+				harmony_enable_interrupts();
+			}
+							
+			interruptible_sleep_on(&(harmony.wq_record));
+			harmony.blocked_recording=0;
+		}
+		if(harmony.nb_filled_record<2) return -EBUSY;
+		
+		buf_to_read = harmony.first_filled_record;
+		
+		/* Figure out the size of the frame */
+	
+		/* Copy the page to an aligned buffer */
+		copy_to_user(buffer+count, 
+			     recorded_buf+(HARMONY_BUF_SIZE*buf_to_read), 
+			     HARMONY_BUF_SIZE);
+		
+		harmony.nb_filled_record--;
+		harmony.first_filled_record++;
+		harmony.first_filled_record%=MAX_BUFS;
+				
+		count += 4096;
+	}
+	return count;
 }
 
 
 
+
 /* Here is the place where we try to recognize file format.
    Sun/NeXT .au files began with the string .snd
    At offset 12 is specified the encoding.
@@ -531,12 +595,16 @@
 		harmony_wait_CNTL();
 
 		/* Figure out which buffer to fill in */
-		while (harmony.nb_filled+2 >= MAX_BUFS) {
-			harmony.blocked = 1;
-			interruptible_sleep_on(&(harmony.wq));
+		
+		if(harmony.nb_filled_play+2 >= MAX_BUFS) {
+			harmony.blocked_playing = 1;
+			interruptible_sleep_on(&(harmony.wq_play));
+			harmony.blocked_playing=0;
 		}
-	
-		buf_to_fill = (harmony.first_filled+harmony.nb_filled) % MAX_BUFS;
+		if(harmony.nb_filled_play+2 >= MAX_BUFS) return -EBUSY;
+		
+		
+		buf_to_fill = (harmony.first_filled_play+harmony.nb_filled_play) % MAX_BUFS;
 
 		/* Figure out the size of the frame */
 		if ((total_count-count) > HARMONY_BUF_SIZE) {
@@ -545,33 +613,26 @@
 			frame_size = total_count - count;
 			/* Clear out the buffer, since there we'll only be 
 			   overlaying part of the old buffer with the new one */
-			harmony_silence(aligned_buf, HARMONY_BUF_SIZE*buf_to_fill, 
+			harmony_silence(played_buf, HARMONY_BUF_SIZE*buf_to_fill, 
 					HARMONY_BUF_SIZE);
 		}
 
 		/* Copy the page to an aligned buffer */
-		copy_from_user(aligned_buf+(HARMONY_BUF_SIZE*buf_to_fill), 
+		copy_from_user(played_buf+(HARMONY_BUF_SIZE*buf_to_fill), 
 				buffer+count, frame_size);
 	
-		harmony.nb_filled++;
+		harmony.nb_filled_play++;
 
-		CHECK_WBACK_INV(aligned_buf, HARMONY_BUF_SIZE*MAX_BUFS);
+		CHECK_WBACK_INV(played_buf, HARMONY_BUF_SIZE*MAX_BUFS);
 		
 		harmony.done = 0;
 		count += frame_size;
 
-		if (harmony.frames_so_far == 1) {
-			harmony_mixer_unmute();
-		   	harmony_enable_interrupts();
-		}
-
-		if (harmony.suspended) {
-			harmony.suspended = 0;
+		if (harmony.suspended_playing && (harmony.nb_filled_play>=4)) {
 			harmony_enable_interrupts();
 		}
-		
-		harmony.frames_so_far++;
 	}
+	
 	return count;
 }
 
@@ -678,37 +739,63 @@
 
 	/* Setup the hpa */
 	hpa = ((struct harmony_dev *)dev)->hpa;
+	harmony_wait_CNTL();
 	
 	/* Read dstatus and pcuradd (the current address) */
 	dstatus = gsc_readl(&hpa->dstatus);
 	
 	/* Turn off interrupts */
 	harmony_disable_interrupts();
-	dstatus = gsc_readl(&hpa->dstatus);
 	
 	/* Check if this is a request to get the next play buffer */
 	if (dstatus & DSTATUS_PN) {
-		if (!harmony.nb_filled) {
-			harmony.suspended = 1;
+		if (!harmony.nb_filled_play) {
+			harmony.suspended_playing = 1;
+			harmony_silence(silent, 0,HARMONY_BUF_SIZE);
+			gsc_writel(__pa(silent), &hpa->pnxtadd);
+						
+			if(!harmony.suspended_recording) {
+				harmony_enable_interrupts();
+			} 
 		} else {
-			gsc_writel(__pa(aligned_buf+(HARMONY_BUF_SIZE*harmony.first_filled)), 
+			harmony.suspended_playing=0;
+			gsc_writel(__pa(played_buf+(HARMONY_BUF_SIZE*harmony.first_filled_play)), 
 					&hpa->pnxtadd);
-			harmony.first_filled++;
-			harmony.first_filled %= MAX_BUFS;
-			harmony.nb_filled--;
-			harmony_enable_interrupts();
+			harmony.first_filled_play++;
+			harmony.first_filled_play %= MAX_BUFS;
+			harmony.nb_filled_play--;
+			
+		       	harmony_enable_interrupts();
 		}
-
-		if (harmony.blocked) {
-			wake_up_interruptible(&(harmony.wq));
-			harmony.blocked = 0;
+		if (harmony.blocked_playing) {
+			wake_up_interruptible(&(harmony.wq_play));
 		}
 	}
 	
 	/* Check if we're being asked to fill in a recording buffer */
 	if (dstatus & DSTATUS_RN) {
-		/* Not supported yet */
-		gsc_writel(__pa(graveyard), &hpa->rnxtadd);
+		if((harmony.nb_filled_record+2>=MAX_BUFS) || harmony.suspended_recording)
+		{
+			harmony.nb_filled_record=0;
+			harmony.first_filled_record=0;
+			harmony.suspended_recording = 1;
+			gsc_writel(__pa(graveyard), &hpa->rnxtadd);
+			if(!harmony.suspended_playing)
+				harmony_enable_interrupts();
+		} else {
+			int buf_to_fill;
+			buf_to_fill=(harmony.first_filled_record+harmony.nb_filled_record)%MAX_BUFS;
+			CHECK_WBACK_INV(recorded_buf+(HARMONY_BUF_SIZE*buf_to_fill), HARMONY_BUF_SIZE);
+			gsc_writel(__pa(recorded_buf+(HARMONY_BUF_SIZE*(buf_to_fill))),&hpa->rnxtadd);
+			harmony.nb_filled_record++;
+			harmony_enable_interrupts();
+		}
+
+		if (harmony.blocked_recording && 
+		    harmony.nb_filled_record>3) {
+						
+			wake_up_interruptible(&(harmony.wq_record));
+		}
 	}
 }
 
@@ -738,13 +825,12 @@
 		return -EFAULT;
 	}
 	
-	harmony_set_control(HARMONY_DF_16BIT_LINEAR, HARMONY_SR_22KHZ, HARMONY_SS_MONO);

From - Thu Nov 08 21:16:50 2018
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From: 5116@telia.com
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Subject: Re: [parisc-linux] TODO-list entry of "HIL keyboard driver needs  u
 pdating"
Date: Tue, 6 Mar 2001 22:56:46 +0100 (CET)
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To: Alex deVries <alex@linuxcare.com>
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On  5 Mar, Alex deVries wrote:

> I'm Alex.
> 
> The reason that I think I have HIL specs is because it's mentioned in
> the WAX documentation I have under NDA.  I can't send out copies of it,
> but I can give information necessary for writing code.

Does this include the WAX EISA bridge? 

In that case I have a few questions to you... I hope you don't mind.

First about different WAXes...

There seems to be two major versions here

- one with sversion 0x76 which is found on ASP based machines (715/old,
           730, 735, 750, 755) 

- one set of two with sversions 0x8e and 0x90 which are found on LASI
           based machines where the one with sversion 0x90 is the 
           EISA BA. 
           These seem to be found on the 715/new, 725, some B, C, D, J
           and R-class machines) 

How are these tow WAX EISA BA's different? Do you know?

1) About interrupts.

How are they implemented?
- If I assume that the interrupt controller is like a ASP or LASI with
the following registers, am I right, then?

#define OFFSET_IRR 0x0000   /* Interrupt request register */
#define OFFSET_IMR 0x0004   /* Interrupt mask register */
#define OFFSET_IPR 0x0008   /* Interrupt pending register */
#define OFFSET_ICR 0x000C   /* Interrupt control register */
#define OFFSET_IAR 0x0010   /* Interrupt address register */

If so how are the interrupts numbered is bit 0 irq 0 or 15 or?

How is the interrupt connected upwards? IRQ line 23 on the ASP is
labeled EISA is this where WAX EISA interrupts go? 

2) On I/O regions

I thinks that there are two I/O regions in the WAX EISA: one for port
I/O which seem to start at the hpa+0 and then a second one (for MMIO i
suppose) which starts at 0x100000 if this is a EISA bus address or
host linear address I don't know.

Question is: what do the docs say?

I guess I need to do something with MMIO so that ioremap() and 
virt_to_bus() work as expected. 
 
I guess I can not count of this thing being DMA coherent on a 715/old?

It seems from the existing source that there should be a version
register at 0x7000 but it seems to read 0xffff on my machine...


Best Regards, 

Daniel
-- 






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From: Mattias Wadenstein <maswan@acc.umu.se>
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Subject: [parisc-linux] TODO-list entry about floating point completion and trap handler
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I'm still migrating the outdated todo list into the BTS.

I found these two:
     * Finish floating point completion and trap handler. (Volunteer?)
     * Verify floating point trap behaviour is correct (Volunteer?)

And it seems that it is unclear if they need to be done. If anyone knows
that they need to be done, please submit a bug regarding that to the bug
tracking system.

/Mattias Wadenstein





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Xref: news.gmane.org gmane.linux.ports.parisc:10467

Mattias Wadenstein wrote:
> I'm still migrating the outdated todo list into the BTS.

yes - and doing a respectable job of it too! :^)

> I found these two:
>      * Finish floating point completion and trap handler. (Volunteer?)
>      * Verify floating point trap behaviour is correct (Volunteer?)

I think the reason was not all FP coprocessors implement all
FP instructions in silicon. Some of the insn's defined by the
arch need to be implemented in FP emulation.

Anyone know real details?
Or where to look for them?

| And it seems that it is unclear if they need to be done. If anyone knows
| that they need to be done, please submit a bug regarding that to the bug
| tracking system.

We currently enable the FPU if PDC tells us the CPU has one.
All the CPUs we support have one (712/80i might be an exception).
So it also depends on what type of code gcc generates or what
kind of hand written asm people write for special applications.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Alex deVries <alex@linuxcare.com>
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Subject: Re: [parisc-linux] TODO-list entry of "HIL keyboard driver needs  
 updating"
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5116@telia.com wrote:
> Does this include the WAX EISA bridge?

Yeah, it's the WAX ERS.  It has a Qtip on the front page.

> In that case I have a few questions to you... I hope you don't mind.

Not at all, I'm happy someone with coding time is asking them. I'm in a
hotel room in a different country than my docs, but I'll be reunited
with them in a crushing airport scene on Friday, hopefully.

> First about different WAXes...
> There seems to be two major versions here
> - one with sversion 0x76 which is found on ASP based machines (715/old,
>            730, 735, 750, 755)
> - one set of two with sversions 0x8e and 0x90 which are found on LASI
>            based machines where the one with sversion 0x90 is the
>            EISA BA.
>            These seem to be found on the 715/new, 725, some B, C, D, J
>            and R-class machines)
> How are these tow WAX EISA BA's different? Do you know?

My understanding is that one of them is the bridge portion of WAX, the
other is all the other WAX devices like HIL and RS232. It actually
doesn't much matter so long as we load the right driver based on the
right signatures.  I had thought I'd done that in the driver already.

And yes, the WAX does have RS232 ports, and it looks like the 715/new
machines have one serial port on Lasi, the other on WAX.

> 1) About interrupts.
> 
> How are they implemented?
> - If I assume that the interrupt controller is like a ASP or LASI with
> the following registers, am I right, then?
> 
> #define OFFSET_IRR 0x0000   /* Interrupt request register */
> #define OFFSET_IMR 0x0004   /* Interrupt mask register */
> #define OFFSET_IPR 0x0008   /* Interrupt pending register */
> #define OFFSET_ICR 0x000C   /* Interrupt control register */
> #define OFFSET_IAR 0x0010   /* Interrupt address register */
> 
> If so how are the interrupts numbered is bit 0 irq 0 or 15 or?
> 
> How is the interrupt connected upwards? IRQ line 23 on the ASP is
> labeled EISA is this where WAX EISA interrupts go?

I'll dig this up, I do have that info.

I tried to trigger interrupts, but never actually got this going.

> 2) On I/O regions
> 
> I thinks that there are two I/O regions in the WAX EISA: one for port
> I/O which seem to start at the hpa+0 and then a second one (for MMIO i
> suppose) which starts at 0x100000 if this is a EISA bus address or
> host linear address I don't know.

The remapping functions are pretty wild, and I'd thought I'd already
committed those.  It's a horrible bit twisting and shifting thing.

> Question is: what do the docs say?
> I guess I need to do something with MMIO so that ioremap() and
> virt_to_bus() work as expected.
> 
> I guess I can not count of this thing being DMA coherent on a 715/old?

There's some gross coherency problems that are going to be difficult to
outline without actually showing you the doc (which I'm okay with, but
you need to talk to HP to get that sorted out).

> It seems from the existing source that there should be a version
> register at 0x7000 but it seems to read 0xffff on my machine...

Let me find out about that as well, I did get this part to work at some
point.

Hang on a few days, I'll dig this up for you.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Putting open source to work.




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Subject: Re: [parisc-linux] Problems on 715/50
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> I'm currently porting the SETI@home client for PaLinux :o) 

Nice!!! Now I really have to dig that 712 out and get it running!  :)


Pete.





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Just to let you know that I already ported the distributed.net client
(www.distributed.net) to parisc-linux (in case you don't believe in aliens
;-))

regards,
Roel

-----Original Message-----
From: Pete [mailto:plaven@ozemail.com.au]
Sent: Wednesday, March 07, 2001 10:38 AM
To: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Problems on 715/50



> I'm currently porting the SETI@home client for PaLinux :o) 

Nice!!! Now I really have to dig that 712 out and get it running!  :)


Pete.



_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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Subject: [parisc-linux] INLINE_SYSCALL/gcc-bug? (Was Re: pipes)
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Help!  Probable gcc bug!

= This is looking like a glibc/kernel issue regardling the width
= of the type returned by lseek():

To reproduce the bogus return value, compile x.c:

    #include <stdio.h>
    #define __USE_FILE_OFFSET64
    #include <unistd.h>
    #include <errno.h>

    int main(int argc, char *argv[])
    {
	long lwhere = lseek(0, 0L, SEEK_CUR);

	printf("lwhere %lx errno %d (%s)\n", lwhere, errno, sys_errlist[errno]);

	return 0;
    }

then run 'ls | x' which should show 'lwhere' as either 0 or -1, but instead
it's 0xffffffec or something like that (-ESPIPE, as Richard found earlier).

After much head scratching, the bug seems to be occurring in glibc's
INLINE_SYSCALL macro (glibc/sysdeps/unix/sysv/linux/hppa/sysdep.h) as
a result of a compiler bug.  Since INLINE_SYSCALL is used to implement
quite a number of syscalls, this could be a nice thing to fix!  Here's
the "proof".  Consider the ustat() syscall [only because the generated
code is simple, not because it's known to have problems]
glibc/sysdeps/unix/sysv/linux/ustat.c:
    int
    ustat (dev_t dev, struct ustat *ubuf)
    {
      unsigned short int k_dev;

      /* We must convert the value to dev_t type used by the kernel.  */
      k_dev = ((major (dev) & 0xff) << 8) | (minor (dev) & 0xff);

      return INLINE_SYSCALL (ustat, 2, k_dev, CHECK_1 (ubuf));
    }
The way things are supposed to work, INLINE_SYSCALL() tests the value
returned from the kernel syscall, which is either in the range of
-4096..-1, in which case it's an error indicator so errno is set
and INLINE_SYSCALL returns -1 which ustat() then returns (-1 is
the standard syscall error return).  Or if outside this range,
the syscall return value is generally passed back unchanged.  This
logic is apparent from INLINE_SYSCALL:

    #define INLINE_SYSCALL(name, nr, args...)       ({              \
	    unsigned long __sys_res;                                \
	    {                                                       \
		    register unsigned long __res asm("r28");        \
		    LOAD_ARGS_##nr(args)                            \
		    asm volatile(                                   \
			    "ble  0x100(%%sr2, %%r0)\n\t"   \
			    " ldi %1, %%r20"                        \
			    : "=r" (__res)                          \
			    : "i" (SYS_ify(name)) ASM_ARGS_##nr     \
			     );                                     \
		    __sys_res = __res;                              \
	    }                                                       \
	    if (__sys_res >= (unsigned long)-4095) {                \
		    __set_errno(-__sys_res);                        \
		    __sys_res == (unsigned long)-1;                 \
	    }                                                       \
	    __sys_res;                                              \
    })

The symptom is that the return value from INLINE_SYSCALL is never -1
even when the if() condition is true.  It's not even -1 when printf-ed
right after being set to -1.  Here's the generated code for
ustat() plus some comments [xc-latest, latest glibc CVS bits]:

    00000000 <ustat>:
       0:   6b c2 3f d9     stw rp,-14(sr0,sp)
       4:   6f c3 00 80     stw,ma r3,40(sr0,sp)
       8:   08 19 02 56     copy r25,r22
       c:   08 1a 02 57     copy r26,r23
      10:   d2 f6 0a f5     shrpw r22,r23,8,r21
      14:   d6 75 09 18     depw,z r21,23,8,r19
      18:   d2 fa 1b f8     extrw,u r23,31,8,r26
      1c:   08 18 02 59     copy r24,r25
      20:   0b 53 02 5a     or r19,r26,r26
      24:   e4 00 82 00     be,l 100(sr2,r0),%sr0,%r31	# make the syscall
      28:   34 14 00 7c     ldi 3e,r20
      2c:   08 1c 02 43     copy ret0,r3		# save return value
# if (__sys_res >= (unsigned long)-4095)
      30:   34 13 20 01     ldi -1000,r19
      34:   88 73 80 28     cmpb,>>= r19,r3,50 <ustat+0x50>
# {
      38:   08 03 02 5c     copy r3,ret0
      3c:   e8 40 00 00     b,l 44 <ustat+0x44>,rp
			    3c: R_PARISC_PCREL17F   __errno_location
      40:   08 00 02 40     nop
      44:   08 60 04 13     sub r0,r3,r19	 # r19 = -__sys_res
      48:   0f 93 12 80     stw  r19,0(sr0,ret0) # __set_errno(r19)
      4c:   08 03 02 5c     copy r3,ret0	 # restore syscall ret value
# }
      50:   4b c2 3f 59     ldw -54(sr0,sp),rp
      54:   e8 40 c0 00     bv r0(rp)
      58:   4f c3 3f 81     ldw,mb -40(sr0,sp),r3

There appears to be no code generated for setting __sys_res to -1 so
I think this is probably a gcc bug.  I think I confirmed that the bug
exists with no optimization too.

Unfortunately we seem to be working around this bug in
in some of the hppa-specific syscalls, for example hppa/mmap.c
[which is using a poorer algorithm than the one in INLINE_SYSCALL()!]

INLINE_SYSCALL() also has a sign/unsigned problem as willy pointed out.

Attached is a list of glibc source files which contain INLINE_SYSCALL()
so if these syscalls seem broken to you, it could be due to this defect.

./aio_sigqueue.c
./execve.c
./ftruncate64.c
./fxstat.c
./fxstat64.c
./getcwd.c
./getdents.c
./getpriority.c
./llseek.c
./lxstat.c
./lxstat64.c
./msgctl.c
./msgget.c
./msgrcv.c
./msgsnd.c
./poll.c
./pread.c
./pread64.c
./ptrace.c
./pwrite.c
./pwrite64.c
./readv.c
./reboot.c
./semctl.c
./semget.c
./semop.c
./shmat.c
./shmctl.c
./shmdt.c
./shmget.c
./sigaction.c
./sigpending.c
./sigprocmask.c
./sigqueue.c
./sigsuspend.c
./sigtimedwait.c
./sigwaitinfo.c
./sysctl.c
./truncate64.c
./ustat.c
./writev.c
./xmknod.c
./xstat.c
./xstat64.c
./hppa/brk.c
./hppa/mmap.c
./hppa/sysdep.h




From - Thu Nov 08 21:16:50 2018
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Minor mistake on my part -- my example wasn't compiled with the latest
compiler but the defect seems stable across several recent compiler
versions (xc-20010305 doesn't appear to be able to compile glob*.c
and others in glibc).

	-P




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Subject: Re: [parisc-linux] INLINE_SYSCALL/gcc-bug? (Was Re: pipes)
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Hi,

On Wed, 7 Mar 2001, Paul Bame wrote:

> 
> Help!  Probable gcc bug!
> 
>     #define INLINE_SYSCALL(name, nr, args...)       ({              \
> 	    unsigned long __sys_res;                                \
> 	    {                                                       \
> 		    register unsigned long __res asm("r28");        \
> 		    LOAD_ARGS_##nr(args)                            \
> 		    asm volatile(                                   \
> 			    "ble  0x100(%%sr2, %%r0)\n\t"   \
> 			    " ldi %1, %%r20"                        \
> 			    : "=r" (__res)                          \
> 			    : "i" (SYS_ify(name)) ASM_ARGS_##nr     \
> 			     );                                     \
> 		    __sys_res = __res;                              \
> 	    }                                                       \
> 	    if (__sys_res >= (unsigned long)-4095) {                \
> 		    __set_errno(-__sys_res);                        \
> 		    __sys_res == (unsigned long)-1;                 \

                             ^^^^
     Perhaps this is why no code is generated to set __sys_res to -1?
     Or am I out of my mind?

     
> 	    }                                                       \
> 	    __sys_res;                                              \
>     })
> 




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Subject: Re: [parisc-linux] INLINE_SYSCALL/gcc-bug? (Was Re: pipes)
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> 		    __set_errno(-__sys_res);                        \
> 		    __sys_res == (unsigned long)-1;                 \
			      ^^
Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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= I have noticed that quite a few 
= packages in Debian that use c++ don't seem to be 2.97(v3) clean yet. So far I
= can't build apt, jade, and ncurses.  I have been able to build quite a few 
= other things though and I have placed the debs in the above directory.

The apt build failure seems to be that the apt compile is unable
to see things in the 'std' namespace -- possibly a new mode of 2.9.7
and I have no clue how to fix this (namespaces are newer than my
working C++ knowledge).

	-P




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Subject: [parisc-linux] New xc and include tarballs available
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I have built a new xc tarball that includes the following commits,

http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2001-March/028738.html
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2001-March/028739.html

It's available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20010307.tar.gz

Since this is a header file change you'll need to pick up a new include 
tarball too,

ftp://puffin.external.hp.com/pub/parisc/src/include-20010307.tar.gz

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: [parisc-linux] New native glibc debs available
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I have built new native glibc debs that include the following commits,

http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2001-March/028738.html
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2001-March/028739.html

They are available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/new-debs/debian/

they are,

glibc-doc_2.2.1-1_all.deb
glibc_2.2.1-1.dsc
glibc_2.2.1-1_hppa.changes
libc6-dbg_2.2.1-1_hppa.deb
libc6-dev_2.2.1-1_hppa.deb
libc6-pic_2.2.1-1_hppa.deb
libc6-prof_2.2.1-1_hppa.deb
libc6_2.2.1-1_hppa.deb
locales_2.2.1-1_all.deb

I have installed them and am building new compilers against them now. I will 
post those soon.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Xref: news.gmane.org gmane.linux.ports.parisc:10478

This fixes the "fixincludes" problem, which was then called a pipe
problem, which was then thought to be an lseek problem, which turned
out to be due to using an == instead of an = in some quite old code.
Many thinks to jda and jle for seeing the offensive ==, and to
richard for doing much early work to localize this.

Once your libc shared library is updated, fixincludes (which could
be re-enabled I suppose could be re-enabled in gcc) should work.  Other
things might start working better too, because this problem
theoretically was causing bogus error return values from many syscalls.

	-P




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Xref: news.gmane.org gmane.linux.ports.parisc:10479

Matt Taggart writes...

> I have built new native glibc debs that include the following commits,
> 
> http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2001-March/028738.ht
> ml
> http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2001-March/028739.ht
> ml
> 
> They are available at,
> 
> ftp://puffin.external.hp.com/pub/parisc/binaries/new-debs/debian/

When building debian packages with these glibc debs there is a problem when 
dpkg tries to determine the shlib dependencies. To fix this edit,

/var/lib/dpkg/info/libc6.shlibs

and remove all occurances of GLIBC_2.2. I am rebuilding the debs with the 
proper fix now and will post them soon.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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To: Alan Modra <alan@linuxcare.com.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:10480

Alan Modra writes...

> On Tue, 6 Mar 2001, Matt Taggart wrote:
> 
> > I am attempting to build the bzip2 debian package I ran into a problem. The
[snip]
> To fix it, you'll need to recompile current pehc CVS glibc using the new
> compiler, which will give you new crti.o and crtn.o  (And yeah, the fault
> is mine - I broke our glibc sources for a while)

The new glibc debs do indeed fix this problem.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] new debs including util-linux with working "more"
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I've been uploading lots of userspace debs to,

ftp://puffin.external.hp.com/ftp/pub/parisc/binaries/new-debs/

but of particular interest is a new util-linux with a working "more" command. 
I don't know about you, but that one was really pissing me off. Yeah I know I 
should use less but I haven't trained my brain to do that yet(that's what 
aliases are for!).

Thanks again to Richard for the fix.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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On Wed, 7 Mar 2001, Matt Taggart wrote:

> I've been uploading lots of userspace debs to,
>

How would an average user start this process?
Will there be a new .iso soon?
Or should I start w/ the 0.5 image?
I'm not a developer, but I would like to play too  *8^)
Oh, I only have 715's btw...


--
 Ed June

 buggz@america.net
 Linux: An open choice for free people worldwide.





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Subject: Re: [parisc-linux] New native glibc debs available
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   of "Wed, 07 Mar 2001 16:41:51 MST." <20010307234151.87F3037CB4@carmen.fc.hp.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:10483

Matt Taggart writes...

> and remove all occurances of GLIBC_2.2. I am rebuilding the debs with the 
> proper fix now and will post them soon.

OK fixed versions of,

glibc-doc_2.2.1-1_all.deb
libc6-dbg_2.2.1-1_hppa.deb
libc6-dev_2.2.1-1_hppa.deb
libc6-pic_2.2.1-1_hppa.deb
libc6-prof_2.2.1-1_hppa.deb
libc6_2.2.1-1_hppa.deb
locales_2.2.1-1_all.deb

are available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/new-debs/debian/

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Nicholas Leippe <nick@byu.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New to list (just got a B132L)...
Date: Wed, 07 Mar 2001 19:19:06 -0700
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi all,

I just got myself a B132L, and am eventually gonna get
Linux on there.

I've already installed LFS (www.linuxfromscratch.org)
on a few x86 boxes, and was wondering how involved
the build process was.  (I've not yet built an xc or
attempted a cross-install, but I've been thinking on
how I'd do it...)

I'd really rather not use Debian or anything 
pre-packaged...

I'd really rather figure out how to do a complete
cross-install, since my dual x86 box can compile much
faster than any of my other arch. boxes.  Still not
sure if this is really possible.

Nick

ps, I've got an alpha, a mips, and an _old_ m68k machine
as well, so I'm hoping there will be a lot of carry-over
for all of them... (luckily all models I own are well
supported by their respective Linux port)

- -- 
Nobody will ever need more than 640 kB RAM.
                 -- Bill Gates, 1983
Windows 98 requires 16 MB RAM.
                 -- Bill Gates, 1999
Nobody will ever need Windows 98.
                 -- logical conclusion
-----BEGIN PGP SIGNATURE-----
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From - Thu Nov 08 21:16:51 2018
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From: Bruno IGLESIAS <iglesiab@esiee.fr>
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Subject: [parisc-linux] Problem on floating calculation
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	When I execute Seti@home client (32 Bits executable) on a 64 Bit     
architecture ( HP900A500-A5X i.e ESIEE's A500) ,the expression :      
                                                                      
   "exp(-(0.693 * SQUARE((float)(i) - (float)(ul_TOffset))) /         
(float)(f_SigmaSq))"                                                  
                                                                      
doesn't work with some specific value. For example exp(-89.790901)    
result in an illegal instruction message.                             
                                                                      
I'm using the current xc ( 0307 ) and a quite recent cvs update of the
kernel ( running in a monoprocessor version.                          
                                                                      
	Bruno IGLESIAS                                                       




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Subject: Re: [parisc-linux] Problem on floating calculation
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On Thu, Mar 08, 2001 at 03:16:48PM +0000, Bruno IGLESIAS wrote:
> 	When I execute Seti@home client (32 Bits executable) on a 64 Bit     
> architecture ( HP900A500-A5X i.e ESIEE's A500) ,the expression :      
>                                                                       
>    "exp(-(0.693 * SQUARE((float)(i) - (float)(ul_TOffset))) /         
> (float)(f_SigmaSq))"                                                  
>                                                                       
> doesn't work with some specific value. For example exp(-89.790901)    
> result in an illegal instruction message.                             

i had trouble with a divide performed by a prefetch benchmark program.
there's definitely something wrong with our FP stuff.  I believe this is
bug #72 in the BTS.

-- 
Revolutions do not require corporate support.




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Subject: New native compiler debs available was Re: [parisc-linux] New native 
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   of "Wed, 07 Mar 2001 16:11:20 MST." <20010307231120.68F2737CB4@carmen.fc.hp.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:10487

Matt Taggart writes...

> I have installed them and am building new compilers against them now. I will 
> post those soon.

Ok, I have posted new compilers built against the new glibc debs. They are,

cpp-2.97-doc_2.97-010203_all.deb
cpp-2.97_2.97-010203_hppa.deb
fixincludes_2.97-010203_hppa.deb
g++-2.97_2.97-010203_hppa.deb
g77-2.97-doc_2.97-010203_all.deb
g77-2.97_2.97-010203_hppa.deb
gcc-2.97-base_2.97-010203_all.deb
gcc-2.97-doc_2.97-010203_all.deb
gcc-2.97_2.97-010203_hppa.deb
gcc-2.97_2.97.ds4-010203.dsc
gcc-2.97_2.97.ds4-010203_hppa.changes
gobjc-2.97_2.97-010203_hppa.deb
libgcc297_2.97-010203_hppa.deb
libobjc297_2.97-010203_hppa.deb
libstdc++2.97-dbg_2.97-010203_hppa.deb
libstdc++2.97-dev_2.97-010203_hppa.deb
libstdc++2.97-doc_2.97-010203_all.deb
protoize_2.97-010203_hppa.deb
libstdc++2.97_2.97-010203_hppa.deb

and are available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/new-debs/debian/

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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In-Reply-To: Message from Matt Taggart <taggart@carmen.fc.hp.com> 
   of "Tue, 06 Mar 2001 02:39:51 MST." <20010306093951.7816D38BD7@carmen.fc.hp.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:10488

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--==_Exmh_-782328440
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable


Matt Taggart writes...

> When building the libpng debian package,
> =

> apt-get source libpng
> cd libpng-1.0.8
> dpkg-buildpackage
> =

> it builds a 'pngtest' program and attempts to run it resulting in this =
page =

> fault,
> =

> -----------------------------------------------------------------------=
------
> -
> do_page_fault() pid=3D29568 command=3D'pngtest' type=3D6 address=3D0x0a=
000003
> vm_start =3D 0x00005000, vm_end =3D 0x00007000
> =

>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001101111111100001111
> r0-3     00000000 40016f9c 40057ec7 faf003c0
> r4-7     4001a380 000a6bf0 000a6c10 00000002
> r8-11    faf001d4 faf001cc 00000001 4001baf0
> r12-15   4001bad0 00000000 000a6c70 00000000
> r16-19   00000000 00005000 00000000 4001a380
> r20-23   0a000000 000048c8 0a000000 00000000
> r24-27   faf001d4 faf001cc 00000001 00076808
> r28-31   4001b1f2 00000037 faf00440 40057ec7
> sr0-3    00004387 00004387 00000000 00004387
> sr4-7    00004387 00004387 00004387 00004387
> =

> IASQ: 00004387 00004387 IAOQ: 0a000003 0a000007
>  IIR: 43ffff80    ISR: 102400c9  IOR: 93700428
> ORIG_R28: faf00001
> -----------------------------------------------------------------------=
------

I am still having the problem with the new fixed glibc and new compilers.=
 The =

page fault is different though,

-------------------------------------------------------------------------=
----
do_page_fault() pid=3D19510 command=3D'pngtest' type=3D15 address=3D0x401=
daa1c
vm_start =3D 0x401c8000, vm_end =3D 0x401cb000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 401da908 4004da57 faf003c0
r4-7     401da908 000a9bb0 00000002 4001a930
r8-11    faf001d4 faf001cc 00000001 4001c098
r12-15   4001c078 00000000 000a97f0 00000000
r16-19   00000000 00005000 00000000 401da908
r20-23   00000000 000048c8 4004da28 00000000
r24-27   faf001d4 faf001cc 00000001 00076808
r28-31   4001b79a 00000037 faf00440 4000f1bf
sr0-3    00000616 00000616 00000000 00000616
sr4-7    00000616 00000616 00000616 00000616

IASQ: 00000616 00000616 IAOQ: 40057e93 40057e97
 IIR: 48210228    ISR: 00000616  IOR: 401daa1c
ORIG_R28: faf00001
-------------------------------------------------------------------------=
----

The new pngtest is attached.

Thanks,

-- =

Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation


--==_Exmh_-782328440
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--==_Exmh_-782328440--






From - Thu Nov 08 21:16:51 2018
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From: Bruno IGLESIAS <iglesiab@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Bug 72 ( Floating point problems )
Date: Fri, 09 Mar 2001 17:43:48 +0000
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To: parisc-linux@parisc-linux.org
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Hi all,                                                               
                                                                      
	The test of the Seti@client reveals lots of problems. When the       
calculation doesn't result in an illegal instruction (cf A500), the   
results are false. The kernel running was compiled on a B132L and the 
xc seems to be an old one. We now try with an newer kernel and xc.    
                                                                      
	The calculation time for the test is 56 hours. Under HPUX, it is     
about 30 hours.                                                       
                                                                      
	A link is available in our page                                      
(http://mkhppa1.esiee.fr/en/result.html) showing the comparison       
between the client and the official results.                          
                                                                      
Bye                                                                   
	Bruno IGLESIAS                                                       




From - Thu Nov 08 21:16:52 2018
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From: David Huggins-Daines <dhd@eradicator.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Bug 72 ( Floating point problems )
Date: 09 Mar 2001 12:11:59 -0500
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To: Bruno IGLESIAS <iglesiab@esiee.fr>
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Bruno IGLESIAS <iglesiab@esiee.fr> writes:

> 	The test of the Seti@client reveals lots of problems. When the       
> calculation doesn't result in an illegal instruction (cf A500), the   
> results are false. The kernel running was compiled on a B132L and the 
> xc seems to be an old one. We now try with an newer kernel and xc.    

That's likely to be either:

 1) a compiler bug.
 2) a problem with saving/restoring floating point state in the kernel.
 3) a consequence of the mostly non-existant floating point completion
    handler in the kernel. (see FIXME in arch/parisc/kernel/traps.c)

...in increasing order of likeliness.

A whole bunch of instructions are supposed to be trapped and emulated
in software, most notably the rounding instructions.  We catch
co-processor traps and handle exceptions, but we don't (yet) emulate
anything, so the results of these instructions are undefined.

Part of the problem is that the details of which instructions are to
be emulated are not in the architecture manuals, but rather in the
chip manuals, and we only have these for the 7100 and 7300LC, as far
as I know.

What probably needs to be done is someone needs to take small pieces
of numeric code and track down all the operations that are throwing
traps or giving incorrect results, and fix them all individually :(

> 	The calculation time for the test is 56 hours. Under HPUX, it is     
> about 30 hours.                                                       

That's probably to be expected for floating-point code.  HP/UX has
lots of extra, super-optimized millicode to handle various low-level
FP operations.

-- 
David Huggins-Daines              -                     dhd@pobox.com
                      http://www.pobox.com/~dhd/




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On  7 Mar, Alex deVries wrote:
 
> The remapping functions are pretty wild, and I'd thought I'd already
> committed those.  It's a horrible bit twisting and shifting thing.
Yes, I saw those, but I did not really get them to work until I removed
the remapping thing. May be the early EISA BA is very different from the
later (and more common one)?
 
> Hang on a few days, I'll dig this up for you.
Will do.


/Daniel

-- 






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On Thu, 8 Mar 2001, Matt Taggart wrote:

> I am still having the problem with the new fixed glibc and new compilers. The 
> page fault is different though,

I get:
Testing libpng version 1.0.8
   with zlib   version 1.1.3

 libpng version 1.0.8 - July 24, 2000
   Copyright (c) 1998-2000 Glenn Randers-Pehrson
   Copyright (c) 1996, 1997 Andreas Dilger
   Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
 library (10008): libpng version 1.0.8 - July 24, 2000 (header)
 pngtest (10008): libpng version 1.0.8 - July 24, 2000 (header)
 sizeof(png_struct)=808, sizeof(png_info)=288
Testing pngtest.png:
[snip]
libpng passes test

> IASQ: 00000616 00000616 IAOQ: 40057e93 40057e97
>  IIR: 48210228    ISR: 00000616  IOR: 401daa1c
> ORIG_R28: faf00001
> 
> The new pngtest is attached.

And the same with your binary (shared libs built from source locally)

ldd pngtest
        libpng.so.2 => /usr/lib/libpng.so.2 (0x40020000)
        libz.so.1 => /usr/lib/libz.so.1 (0x4004f000)
        libm.so.6 => /lib/libm.so.6 (0x4005f000)
        libc.so.6 => /lib/libc.so.6 (0x40091000)
        /lib/ld.so.1 => /lib/ld.so.1 (0x40000000)

Your IOAQ indicates the fault happened in libz.  48210228 occurs in my
libz in __do_global_ctors_aux, so it smells like your libz is bad,
ie. built with bad crt[in].o.

Alan Modra
-- 
Linuxcare





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> The apt build failure seems to be that the apt compile is unable
> to see things in the 'std' namespace -- possibly a new mode of 2.9.7
> and I have no clue how to fix this (namespaces are newer than my
> working C++ knowledge).

i think taggart had a g++ flag that might help, but absent that adding
some strategic "using namespace std;" in the source might help. i am
having lots of binutils problems (segfaults -- more in a separate mail)
but will try to investigate further.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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I'm using binutils from
ftp://puffin.external.hp.com/pub/parisc/binaries/new-debs/debian/
with the corresponding libc6/libc6-dev in that directory, and using the
new gcc-2.97 packages.

Running any of the binaries in the binutils deb gives an immediate
segfault. This includes things like as, ld, etc... obviously this makes
it rather difficult to compile anything.. :-(

I've tried this with both 32-bit and 64-bit kernels built from
yesterday's cvs. Also, at taggart's advice, tried an older 32-bit kernel
built from Feb21 CVS (that was the date of the kernel he was using.) 
This is on a C3k.

strace gives: 
[...]
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\205"..., 1024) = 1
024
newfstat(3, {st_mode=S_IFREG|0755, st_size=1281732, ...}) = 0
close(3)                                = 0
munmap(0x4001d000, 7026)                = 0
getpid()                                = 9829
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++

I rebuilt binutils using an earlier nfsroot (so, older binutils/glibc/gcc 
combo) and the resulting binutils binaries work ok with the new 
os/kernel/libc/gcc combo.

ideas, hints, fixes? :)
randolph
-- 
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  (----)
 ( >__< )
 ^^ ~~ ^^




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> Running any of the binaries in the binutils deb gives an immediate
> segfault. This includes things like as, ld, etc... obviously this makes
> it rather difficult to compile anything.. :-(

ok, one more bit of info; removing the --enable-shared from the binutils
build line gives binaries that work, so i'm guessing there's some
problems with the shared libs (libopcodes and libbfd) ?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] segfaults with new binutils
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On Sat, 10 Mar 2001, Randolph Chung wrote:

> > Running any of the binaries in the binutils deb gives an immediate
> > segfault. This includes things like as, ld, etc... obviously this makes
> > it rather difficult to compile anything.. :-(
> 
> ok, one more bit of info; removing the --enable-shared from the binutils
> build line gives binaries that work, so i'm guessing there's some
> problems with the shared libs (libopcodes and libbfd) ?

Very likely.  I'm downloading at the moment to have a look at
it.  You can check yourself by disassembling the shared libs.

"objdump -j .init -dr libbfd.so" should give you something like the
following:

0000000000011a0c <_init-0x1c>:
   11a0c:	e8 20 00 00 	b,l 11a14 <_init-0x14>,r1
   11a10:	28 2a 50 00 	addil 54800,r1,%r1
   11a14:	e0 20 22 02 	be,n 100(sr4,r1)
   11a18:	2a 7f ff ff 	addil -800,r19,%r1
   11a1c:	48 35 06 88 	ldw 344(r1),r21
   11a20:	ea a0 c0 00 	bv r0(r21)
   11a24:	48 33 06 90 	ldw 348(r1),r19

0000000000011a28 <_init>:
   11a28:	6b c2 3f d9 	stw rp,-14(sp)
   11a2c:	6f c4 00 80 	stw,ma r4,40(sp)
   11a30:	6b d3 3f c1 	stw r19,-20(sp)
   11a34:	e8 5f 1f bd 	b,l 11a18 <_init-0x10>,rp
   11a38:	08 13 02 44 	copy r19,r4
   11a3c:	08 04 02 53 	copy r4,r19
   11a40:	e8 40 02 a0 	b,l 11b98 <frame_dummy>,rp
   11a44:	08 00 02 40 	nop
   11a48:	08 04 02 53 	copy r4,r19
   11a4c:	e8 5f 1f 75 	b,l 11a0c <_init-0x1c>,rp
   11a50:	08 00 02 40 	nop
   11a54:	08 04 02 53 	copy r4,r19
   11a58:	4b c2 3f 59 	ldw -54(sp),rp
   11a5c:	08 04 02 53 	copy r4,r19
   11a60:	e8 40 c0 00 	bv r0(rp)

0000000000011a64 <_end_init>:
   11a64:	4f c4 3f 81 	ldw,mb -40(sp),r4

If you see a mix of r4 and r3 being used to save/restore r19, then that's
the direct cause of your crashes.  The indirect cause is a bad crti.o and
crtn.o built from glibc sources checked out from pehc between 2001/01/16
and 2001/02/05.

You've already started down the path to recovery:
  build and install binutils with --disable-shared,
  build and install gcc with --enable-languages=c --disable-shared,
  build and install glibc

You can then build tools with --enable-shared if you like.

Alan Modra
-- 
Linuxcare






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On Sun, 11 Mar 2001, Alan Modra wrote:

> On Sat, 10 Mar 2001, Randolph Chung wrote:
> > ok, one more bit of info; removing the --enable-shared from the binutils
> > build line gives binaries that work, so i'm guessing there's some
> > problems with the shared libs (libopcodes and libbfd) ?
> 
> Very likely.  I'm downloading at the moment to have a look at
> it.  You can check yourself by disassembling the shared libs.
> 
> "objdump -j .init -dr libbfd.so"

Yep, badly borken libbfd and libopcodes in binutils_2.10.91.0.2-3_hppa.deb

Incidentally, I'm not actively updating binutils CVS on pehc any longer.
If you want the latest code, get it from sourceware.cygnus.com CVS, either
the 2.11 branch, or trunk for bleeding edge code.  At the moment, there's
no particular reason to not use pehc for hppa-linux binutils, as it's not
too far behind, but that will no doubt change in the future...

Alan Modra
-- 
Linuxcare





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On Sun, Mar 11, 2001 at 02:31:26PM +1100, Alan Modra wrote:
> Incidentally, I'm not actively updating binutils CVS on pehc any longer.
> If you want the latest code, get it from sourceware.cygnus.com CVS, either
> the 2.11 branch, or trunk for bleeding edge code.  At the moment, there's
> no particular reason to not use pehc for hppa-linux binutils, as it's not
> too far behind, but that will no doubt change in the future...

Is there any point in keeping this CVS module then?  Shall we just delete it?

-- 
Revolutions do not require corporate support.




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Cc: "Alan Modra" <alan@linuxcare.com.au>,
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To: "Matthew Wilcox" <matthew@wil.cx>
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In reference to a message from Matthew Wilcox, dated Mar 11:
> On Sun, Mar 11, 2001 at 02:31:26PM +1100, Alan Modra wrote:
> > Incidentally, I'm not actively updating binutils CVS on pehc any longer.
> > If you want the latest code, get it from sourceware.cygnus.com CVS, either
> > the 2.11 branch, or trunk for bleeding edge code.  At the moment, there's
> > no particular reason to not use pehc for hppa-linux binutils, as it's not
> > too far behind, but that will no doubt change in the future...
> 
> Is there any point in keeping this CVS module then?  Shall we just delete it?

i'm not sure what taggart did to build the deb on pehc, but i've been
building from Debian's source package. If we are at a point where we can
rely on the Debian maintainer to get the sources from upstream that we
need I think we'll be much better off.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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> You've already started down the path to recovery:
>   build and install binutils with --disable-shared,
>   build and install gcc with --enable-languages=c --disable-shared,
>   build and install glibc

trying to do this last step, but am getting some pretty odd results.

when trying to build linuxthreads, the glibc compile dies when trying to
assemble linuxthreads/crti.S

in particular, it doesn't like the first and last instructions in the
following fragment:

        addil LT'.LC0,%r19
	stw %r2,-20(%r30)
        ldo 64(%r30),%r30
        ldw RT'.LC0(%r1),%r1

i thought LT and RT were #define's of some sort, but i don't see them
defined any place. 

it's also complaining about .init and .fini. From what I gather the
compile takes pt-initfini.c, translates it to a .S file, then does some
sed magic to remove some sections. This leaves a .S that has a .PROC and
.ENTRY for .init/.fini without a corresponding .EXIT and .PROCEND

i tried this both with gcc 2.96 and 2.97... wonder what's going on...

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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On Sun, 11 Mar 2001, Randolph Chung wrote:

> > You've already started down the path to recovery:
> >   build and install binutils with --disable-shared,
> >   build and install gcc with --enable-languages=c --disable-shared,
> >   build and install glibc
> 
> trying to do this last step, but am getting some pretty odd results.
> 
> when trying to build linuxthreads, the glibc compile dies when trying to
> assemble linuxthreads/crti.S
> 
> it's also complaining about .init and .fini. From what I gather the
> compile takes pt-initfini.c, translates it to a .S file, then does some
> sed magic to remove some sections. This leaves a .S that has a .PROC and
> .ENTRY for .init/.fini without a corresponding .EXIT and .PROCEND

Huh?  My builds don't try to build crti.o for linuxthreads.  crti.o is
built in csu/ from sysdeps/hppa/elf/initfini.c.  Perhaps you have a
configuration problem.  What options did you pass to configure?  Hmm, more
importantly, what source are you compiling?  I don't have a pt-initfini.c
in my source tree!

$ cd /usr/src/parisc/glibc
$ cvs update -d -ko
? sysdeps/hppa/hppa64
$ find . -name '*initfini*'
./sysdeps/generic/initfini.c
./sysdeps/hppa/elf/initfini.c
./sysdeps/ia64/elf/initfini.c
./sysdeps/s390/initfini.c
./sysdeps/sh/elf/initfini.c

> i thought LT and RT were #define's of some sort, but i don't see them
> defined any place. 

LT' and RT' are field selectors.  They give you the LR' and RR' values
respectively of the offset from %r19 to the .got slot for the symbol.  The
presense of these selectors also tells the asembler/linker to set up .got
entries for the symbol.

Alan
-- 
Linuxcare





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On Sun, 11 Mar 2001, Matthew Wilcox wrote:

>[re pehc binutils] 
> Is there any point in keeping this CVS module then?  Shall we just delete it?

Purge after 2.11 is released (and proves OK).

Alan
-- 
Linuxcare





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>>>>> "Alan" == Alan Modra <alan@linuxcare.com.au> writes:

Alan> Huh?  My builds don't try to build crti.o for linuxthreads.
Alan> crti.o is built in csu/ from sysdeps/hppa/elf/initfini.c.
Alan> Perhaps you have a configuration problem.  What options did you
Alan> pass to configure?  Hmm, more importantly, what source are you
Alan> compiling?  I don't have a pt-initfini.c in my source tree!

pt-initfini.c was added to glibc-2.2.2 recently, you need it to build
a working LinuxThreads library now. Unless someone has synced the
parisc tree recently it shouldn't be an issue, as long as noone tries
to compile the Cygnus tree for parisc.

Jes




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] segfaults with new binutils
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On 12 Mar 2001, Jes Sorensen wrote:

> pt-initfini.c was added to glibc-2.2.2 recently, you need it to build
> a working LinuxThreads library now. Unless someone has synced the
> parisc tree recently it shouldn't be an issue, as long as noone tries
> to compile the Cygnus tree for parisc.

Yeah, I figured Randolph was probably not compiling pehc glibc.  When we
do the next merge, we'll need to add an hppa-linux specific version of
pt-initfini.c

Alan
-- 
Linuxcare






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To: "Alan Modra" <alan@linuxcare.com.au>
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> Yeah, I figured Randolph was probably not compiling pehc glibc.  When we
> do the next merge, we'll need to add an hppa-linux specific version of
> pt-initfini.c

you are right, of course. i was building from Debian's glibc 2.2.2
package. taggart said he's going to rebuild 2.2.1 from pehc cvs, so i'll
wait for him to do that.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] [PATCH] Shared mmap [Take 3]
Date: Mon, 12 Mar 2001 17:50:42 +0000
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This patch changes shared mmaps of files to always be aligned at the
same offset within the processor's d-cache.  This fixes PA-RISC & MIPS.
Sparc & IA-64 need some of their support changing, but I don't want to
do that until everyone's had the chance to disagree with my changes :-)

Index: fs/inode.c
===================================================================
RCS file: /var/cvs/linux/fs/inode.c,v
retrieving revision 1.1.1.3
diff -u -p -r1.1.1.3 inode.c
--- fs/inode.c	2001/01/01 10:32:52	1.1.1.3
+++ fs/inode.c	2001/03/12 13:23:04
@@ -608,6 +608,7 @@ static void clean_inode(struct inode *in
 	inode->i_data.a_ops = &empty_aops;
 	inode->i_data.host = inode;
 	inode->i_mapping = &inode->i_data;
+	inode->i_mmap_offset = -1;
 }
 
 /**
Index: include/linux/fs.h
===================================================================
RCS file: /var/cvs/linux/include/linux/fs.h,v
retrieving revision 1.1.1.4
diff -u -p -r1.1.1.4 fs.h
--- include/linux/fs.h	2001/01/01 10:33:09	1.1.1.4
+++ include/linux/fs.h	2001/03/12 13:56:10
@@ -424,6 +424,7 @@ struct inode {
 
 	unsigned long		i_state;
 
+	unsigned int		i_mmap_offset; /* Handle L1 d-cache aliasing */
 	unsigned int		i_flags;
 	unsigned char		i_sock;
 
Index: include/linux/mm.h
===================================================================
RCS file: /var/cvs/linux/include/linux/mm.h,v
retrieving revision 1.1.1.4
diff -u -p -r1.1.1.4 mm.h
--- include/linux/mm.h	2001/01/01 10:33:09	1.1.1.4
+++ include/linux/mm.h	2001/03/12 13:56:10
@@ -419,6 +419,7 @@ extern void insert_vm_struct(struct mm_s
 extern void __insert_vm_struct(struct mm_struct *, struct vm_area_struct *);
 extern void build_mmap_avl(struct mm_struct *);
 extern void exit_mmap(struct mm_struct *);
+extern unsigned long get_shared_area(unsigned long, unsigned long, unsigned int);
 extern unsigned long get_unmapped_area(unsigned long, unsigned long);
 
 extern unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
Index: mm/mmap.c
===================================================================
RCS file: /var/cvs/linux/mm/mmap.c,v
retrieving revision 1.1.1.4
diff -u -p -r1.1.1.4 mmap.c
--- mm/mmap.c	2001/01/01 10:33:08	1.1.1.4
+++ mm/mmap.c	2001/03/12 16:47:25
@@ -190,6 +190,7 @@ unsigned long do_mmap_pgoff(struct file 
 {
 	struct mm_struct * mm = current->mm;
 	struct vm_area_struct * vma;
+	struct inode *inode = NULL;
 	int correct_wcount = 0;
 	int error;
 
@@ -223,17 +224,18 @@ unsigned long do_mmap_pgoff(struct file 
 	 * of the memory object, so we don't do any here.
 	 */
 	if (file != NULL) {
+		inode = file->f_dentry->d_inode;
 		switch (flags & MAP_TYPE) {
 		case MAP_SHARED:
 			if ((prot & PROT_WRITE) && !(file->f_mode & FMODE_WRITE))
 				return -EACCES;
 
 			/* Make sure we don't allow writing to an append-only file.. */
-			if (IS_APPEND(file->f_dentry->d_inode) && (file->f_mode & FMODE_WRITE))
+			if (IS_APPEND(inode) && (file->f_mode & FMODE_WRITE))
 				return -EACCES;
 
 			/* make sure there are no mandatory locks on the file. */
-			if (locks_verify_locked(file->f_dentry->d_inode))
+			if (locks_verify_locked(inode))
 				return -EAGAIN;
 
 			/* fall through */
@@ -253,6 +255,15 @@ unsigned long do_mmap_pgoff(struct file 
 	if (flags & MAP_FIXED) {
 		if (addr & ~PAGE_MASK)
 			return -EINVAL;
+	} else if (inode && (flags & MAP_SHARED)) {
+		if (inode->i_mmap_offset != -1) {
+			addr = get_shared_area(addr, len, inode->i_mmap_offset);
+		} else {
+			addr = get_unmapped_area(addr, len);
+		}
+		if (!addr)
+			return -ENOMEM;
+		inode->i_mmap_offset = addr & (SHMLBA - 1);
 	} else {
 		addr = get_unmapped_area(addr, len);
 		if (!addr)
@@ -348,7 +359,7 @@ unsigned long do_mmap_pgoff(struct file 
 
 	insert_vm_struct(mm, vma);
 	if (correct_wcount)
-		atomic_inc(&file->f_dentry->d_inode->i_writecount);
+		atomic_inc(&inode->i_writecount);
 	
 	mm->total_vm += len >> PAGE_SHIFT;
 	if (flags & VM_LOCKED) {
@@ -359,7 +370,7 @@ unsigned long do_mmap_pgoff(struct file 
 
 unmap_and_free_vma:
 	if (correct_wcount)
-		atomic_inc(&file->f_dentry->d_inode->i_writecount);
+		atomic_inc(&inode->i_writecount);
 	vma->vm_file = NULL;
 	fput(file);
 	/* Undo any partial mapping done by a device driver. */
@@ -376,6 +387,29 @@ free_vma:
  * Return value 0 means ENOMEM.
  */
 #ifndef HAVE_ARCH_UNMAPPED_AREA
+
+#define DCACHE_ALIGN(addr) ((addr) &~ (SHMLBA - 1))
+
+unsigned long get_shared_area(unsigned long addr, unsigned long len, unsigned int offset)
+{
+	struct vm_area_struct *vmm;
+
+	if (len > TASK_SIZE)
+		return 0;
+	if (!addr)
+		addr = TASK_UNMAPPED_BASE;
+	addr = DCACHE_ALIGN(addr - offset) + offset;
+
+	for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) {
+		/* At this point:  (!vmm || addr < vmm->vm_end). */
+		if (TASK_SIZE - len < addr)
+			return 0;
+		if (!vmm || addr + len <= vmm->vm_start)
+			return addr;
+		addr = DCACHE_ALIGN(vmm->vm_end - offset) + offset;
+	}
+}
+
 unsigned long get_unmapped_area(unsigned long addr, unsigned long len)
 {
 	struct vm_area_struct * vmm;
Index: mm/mremap.c
===================================================================
RCS file: /var/cvs/linux/mm/mremap.c,v
retrieving revision 1.1.1.4
diff -u -p -r1.1.1.4 mremap.c
--- mm/mremap.c	2001/01/01 10:33:09	1.1.1.4
+++ mm/mremap.c	2001/03/11 23:48:55
@@ -276,7 +276,11 @@ unsigned long do_mremap(unsigned long ad
 	ret = -ENOMEM;
 	if (flags & MREMAP_MAYMOVE) {
 		if (!(flags & MREMAP_FIXED)) {
-			new_addr = get_unmapped_area(0, new_len);
+			if (vma->vm_file && (vma->vm_flags & VM_SHARED)) {
+				new_addr = get_shared_area(0, new_len, vma->vm_file->f_dentry->d_inode->i_mmap_offset);
+			} else {
+				new_addr = get_unmapped_area(0, new_len);
+			}
 			if (!new_addr)
 				goto out;
 		}

----- End forwarded message -----

-- 
Revolutions do not require corporate support.




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] libpng test program causes page fault
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Xref: news.gmane.org gmane.linux.ports.parisc:10507

Alan Modra writes...

> Your IOAQ indicates the fault happened in libz.  48210228 occurs in my
> libz in __do_global_ctors_aux, so it smells like your libz is bad,
> ie. built with bad crt[in].o.

Yep, I rebuilt/installed libz and then it built fine. I uploaded the new zlib 
and libpng stuff to pehc.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: Re: [parisc-linux] Bug 72 ( Floating point problems )
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To: Bruno IGLESIAS <iglesiab@esiee.fr>
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On Fri, Mar 09, 2001 at 05:43:48PM +0000, Bruno IGLESIAS wrote:
> 	The test of the Seti@client reveals lots of problems. When the       
> calculation doesn't result in an illegal instruction (cf A500), the   
> results are false. The kernel running was compiled on a B132L and the 
> xc seems to be an old one. We now try with an newer kernel and xc.    

i'd really like to try this client myself.  Do you have the source available
for ftp somewhere?  i can't see it on the seti site.

-- 
Revolutions do not require corporate support.




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] segfaults with new binutils
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On Wed, 14 Mar 2001, Alan Modra wrote:

> ld crashes for me too.  Yikes!  I'll look into it.

It's a compiler bug. :-(

I'm getting a crash at 0x40045a08.  ldd binutils/ld/.libs/ld-new shows me
that libbfd loads at 4001e000, so that's an offset of 27a08.
Dissasembling gives me this code in hppa_add_stub:

   279d4:       0d 82 10 35     ldb,ma  1(sr0,r12),r21
   279d8:       0d 82 10 34     ldb,ma  1(sr0,r12),r20
   279dc:       0d 75 12 22     stb,ma  r21,1(sr0,r11)
   279e0:       af 9d 5f dd     addib,>= -2,ret0,279d4 <hppa_add_stub+0x32c>
   279e4:       0d 74 12 22     stb,ma  r20,1(sr0,r11)
   279e8:       0d 80 10 15     ldb  0(sr0,r12),r21
   279ec:       0d 75 12 00     stb  r21,0(sr0,r11)
   279f0:       63 da 3e e9     stb r26,-8c(sp)
   279f4:       63 c0 3e eb     stb r0,-8b(sp)
   279f8:       63 d6 3e e1     stb r22,-90(sp)
   279fc:       63 d7 3e e3     stb r23,-8f(sp)
   27a00:       63 d8 3e e5     stb r24,-8e(sp)
   27a04:       63 d9 3e e7     stb r25,-8d(sp)
   27a08:       4a b5 08 f0     ldw 478(r21),r21

Note the use of r21 as a temp to shuffle bytes around, then it's use as an
index reg.  What's missing is a ldil to set up the high part of the
address.

Alan
-- 
Linuxcare





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Cc: parisc-linux@lists.parisc-linux.org, John Wehle <john@feith.com>
To: Matt Taggart <taggart@carmen.fc.hp.com>
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On Wed, 14 Mar 2001, Alan Modra wrote:

> It's a compiler bug. :-(

And we're indebted to John for already fixing it.

Thu Mar  8 23:29:37 2001  John Wehle  (john@feith.com)

	* rtlanal.c (rtx_varies_p): Check operand 0 of a
	LO_SUM unless for_alias is set.

The above probably makes some of my hacks redundant.  For the time being,
I've left them in, and just added John's fix to puffin.external.hp.com
CVS.

Alan
-- 
Linuxcare





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Subject: [parisc-linux] Reasonable price for a 735/99
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'From: Christian R Molls <molls@rrz.uni-koeln.de>'
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Sorry, this question is probably off-topic as it is hardware related,
but since a great PA-RISC linux presentation at our last LUG meeting in
Cologne, I have been looking for a cheap HP box here in Germany, which
does not seem to be easy; one of the offers is below.

Could somebody tell me what would be a reasonable prize for the
following box:

HP 735-99 w 96 MB RAM
HP A2091 graphics accelerator
2 x 1 GB Fast-SCSI disk drive
SCSI CD-ROM, floppy drive, SCSI disk drive
HP keyboard and mouse
10 MBit NIC w transceiver
SCSI: SCSI-II Interface (5 Mbytes per Second) Fast-Wide SCSI-II
Interface (20 Mbytes per second) 
HP-UX 10.20 installed

Any caveats? What about the graphics? Can I use a standard SVGA monitor?

Best Regards,
Chris




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From: "arete@libero.it" <arete@libero.it>
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Subject: [parisc-linux] esiee root not work
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I have installated the archive fs_hd_20010227.tar.gz, and not work
i have the message 

unable at open initial console

With root file system of cdimages 0.5 work....

was is the problem ??????







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From: "Thomas Marteau" <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] esiee root not work
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Hi,

        this message told you that your /dev/console is not linked to our
choice of console. I think that our root FS is built with the idea that you
will use the sti-console!

If you use the serial port, you must change /dev/console
-- this is STI conf

demo@b132:~$ ls -l /dev/console
lrwxrwxrwx    1 root     root            4 Jan 29  1970 /dev/console -> tty0

-- this is SERIAL conf
demo@b132:~$ ls -l /dev/console
lrwxrwxrwx    1 root     root           10 Mar 14 13:42 /dev/console ->
/dev/ttyS0

Do NOT forget to modify the inittab file!

# Format:
#  <id>:<runlevels>:<action>:<process>
1:2345:respawn:/sbin/getty 38400 tty1        <------ Here for STI
#2:2345:respawn:/sbin/getty 38400 tty2
#3:23:respawn:/sbin/getty 38400 tty3
#4:23:respawn:/sbin/getty 38400 tty4
#5:23:respawn:/sbin/getty 38400 tty5
#6:23:respawn:/sbin/getty 38400 tty6

# Example how to put a getty on a serial line (for a terminal)
#
T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100      <------ Here for SERIAL
#T1:23:respawn:/sbin/getty -L ttyS1 9600 vt100

# Example how to put a getty on a modem line.
#
#T3:23:respawn:/sbin/mgetty -x0 -s 57600 ttyS3







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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Reasonable price for a 735/99
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Xref: news.gmane.org gmane.linux.ports.parisc:10514

> Could somebody tell me what would be a reasonable prize for the
> following box:
> 
> HP 735-99 w 96 MB RAM
> HP A2091 graphics accelerator
> 2 x 1 GB Fast-SCSI disk drive
> SCSI CD-ROM, floppy drive, SCSI disk drive
> HP keyboard and mouse
> 10 MBit NIC w transceiver
> SCSI: SCSI-II Interface (5 Mbytes per Second) Fast-Wide SCSI-II
> Interface (20 Mbytes per second) 
> HP-UX 10.20 installed
> 
> Any caveats? What about the graphics? Can I use a standard SVGA monitor?

I have one.  It probably cost about $30,000 US new.  Depreciate factor
of 2 per year.  This yields about $60.  I wouldn't pay more than for
150 MHz PC.  Machine is reliable but parts are expensive.

The FW interface is differential and drives are somewhat more expensive.
I have had no problem with Seagate's.  I had some system stability problems
until recently with 10.20.  I have been religiously patching and finally
a few months ago some patch fixed the problem (not sure which one).  
I thought the problem was with the scsi driver because I have quite a
few drives but this may only have been the symptom.  This of course is
not an issue if you want to run parisc-linux!

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




From - Thu Nov 08 21:16:54 2018
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From: Sandy Harris <sandy@storm.ca>
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Subject: Re: [parisc-linux] Reasonable price for a 735/99
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> > Could somebody tell me what would be a reasonable prize for the
> > following box:
> >
> > HP 735-99 w 96 MB RAM
> > ...

In the last year I've bought:		Canadian $

	16 bare 712/60s, 128 meg	$ 50 each
	 (no disk, keyboard, monitor, ...)

	715/100, 256 meg		$100
		keyboard & mouse	$ 25
		20" HP monitor		$ 50

	735, 300-odd meg, small drive	$ 35

The last was sheer luck, at a surplus dealer who wasn't sure what it
was. I think the others are good but reasonable prices.

Anyone in the Ottawa area, there are more of these and various old
Suns as well. Mail me off-list if you need vendor contact info.




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From: "Paul J.Y. Lahaie" <pjlahaie@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] perl-5.6.0 build problems
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Hello everyone,

I've been trying to get perl-5.6.0 building since its required for
the boot-floppies package (base tar ball needs base-config which requires
debconf-utils, which requires perl-5.6).  Unfortunately, perl-5.6 does
not work correctly once compiled.

If I use the debian build (with the patch), perl.static and perl.debug
complete building, but a dynamic version crashes immediately on startup
from loading libperl.so.5.6.0 with the following fault:

do_page_fault() pid=21621 command='miniperl' type=6 address=0x00000797

If I only build the static and debug versions, the ./perl installperl
program crashes with the following error:

do_page_fault() pid=1781 command='perl' type=6 address=0x09280003

I've also tried building perl-5.6 w/o any changes (from the .orig.tar.gz)
and the same thing happens.  If it would help, I can install gdb/strace
to find out at which point the faults happens.  If anyone has managed to
get a work perl5.6, please let me know, so I can get it ready for the
install package.

						- Paul

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From: "Paul J.Y. Lahaie" <pjlahaie@linuxcare.com>
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Subject: [parisc-linux] boot-floppies package
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Status update on boot-floppies

The boot-floppies package is pretty much fully functional except for a few
small gotchas.  I cannot build a base2_2.tar.gz file since perl-base and
base-config can't be built.  I've been testing dbootstrap and I can fake
all the installation steps.  They seem to work.  As soon as the popen/pclose
problem and perl-5.6 are fixed, I should be able to get a bootable install
CD working in no time.

						- Paul

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From: "Paul J.Y. Lahaie" <pjlahaie@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] popen/pclose problem
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There seems to be a bug with popen/pclose on parisc.  In dbootstrap,
the Debian bootstrap install program, there is a function that will
run an application with its output redirected to syslog with the use
of popen/pclose.  In this application, pclose always returns -1 which
is (according to the manpage):

"The  pclose function returns -1 if wait4 returns an error, or some other
error is detected."

The function with the error is execlog in utilities/dbootstrap/util.c.

Interestingly, if I take out that function and wrap a main around it,
pclose returns the right values.  Here follows the standalone program
I wrote using the function.

--- cut here ---
#include <stdio.h>
#include <syslog.h>
#define MAXLINE 1024
int  execlog (const char *incmd, int priority)
{
  FILE *output;
  char line[MAXLINE];
  char cmd[strlen(incmd) + 6];
  strcpy(cmd, incmd);

    openlog("sysrun", LOG_PID, LOG_USER);

  /* FIXME: this can cause the shell command if there's redirection
            already in the passed string */
  strcat(cmd, " 2>&1");
  output = popen(cmd, "r");
  while (fgets(line, MAXLINE, output) != NULL ) {
    syslog(priority, line);
  }
  closelog();
  return(pclose(output));
}

int main(int argc,char **argv)
{
    int ret;
    if( argc < 2 )
    {
        fprintf( stderr, "Missing arguments.\n" );
        exit(1);
    }

    ret = execlog( argv[1], LOG_INFO);
    if( ret != 0 )
    {
        fprintf( stderr, "Bad return value %d\n", ret );
        return ret;
    }
    return 0;
}
--- cut here ---

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From - Thu Nov 08 21:16:54 2018
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From: "Paul J.Y. Lahaie" <pjlahaie@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problem reports
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I should have mentioned in the last messages that I am using the latest
glibc from pehc.  For the popen/pclose I was using the 2.96 based compiler
and for perl the 2.97 compiler (both the .deb and I retried with the cvs
compiler from today -- same problems).  As well, I am running a recent
kernel (4-5 days old at most).

						- Paul

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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] Shared mmap [Take 3]
Date: Wed, 14 Mar 2001 21:55:46 +0000
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Cc: linux-mm@kvack.org, parisc-linux@parisc-linux.org
To: Matthew Wilcox <matthew@wil.cx>
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On Mon, Mar 12, 2001 at 05:50:42PM +0000, Matthew Wilcox wrote:
> 
> This patch changes shared mmaps of files to always be aligned at the
> same offset within the processor's d-cache.  This fixes PA-RISC & MIPS.
> Sparc & IA-64 need some of their support changing, but I don't want to
> do that until everyone's had the chance to disagree with my changes :-)

What, no comment?  no flames, no insults?  is this an uncontroversial patch?

Anyway, I have some improvements.

 * use inode->i_mapping->i_mmap_shared to determine whether there are
   any existing mappings rather than keeping track of it through i_mmap_offset.
 * take `pgoff' into account.  Oops, that was the whole point of the patch.
 * ensure `offset' is limited to the range [0 .. SHMLBA)

this time it's actually tested on PA-RISC.  Should work on MIPS too.
Sparc & IA-64 will need work.

Index: include/linux/fs.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/linux/fs.h,v
retrieving revision 1.10
diff -u -p -r1.10 fs.h
--- fs.h	2001/02/02 03:37:12	1.10
+++ fs.h	2001/03/14 21:11:54
@@ -424,6 +424,7 @@ struct inode {
 
 	unsigned long		i_state;
 
+	unsigned int		i_mmap_offset; /* Handle L1 d-cache aliasing */
 	unsigned int		i_flags;
 	unsigned char		i_sock;
 
Index: include/linux/mm.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/linux/mm.h,v
retrieving revision 1.16
diff -u -p -r1.16 mm.h
--- mm.h	2001/02/08 22:39:19	1.16
+++ mm.h	2001/03/14 21:11:54
@@ -423,6 +423,7 @@ extern void insert_vm_struct(struct mm_s
 extern void __insert_vm_struct(struct mm_struct *, struct vm_area_struct *);
 extern void build_mmap_avl(struct mm_struct *);
 extern void exit_mmap(struct mm_struct *);
+extern unsigned long get_shared_area(unsigned long, unsigned long, unsigned int);
 extern unsigned long get_unmapped_area(unsigned long, unsigned long);
 
 extern unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
Index: mm/mmap.c
===================================================================
RCS file: /home/cvs/parisc/linux/mm/mmap.c,v
retrieving revision 1.19
diff -u -p -r1.19 mmap.c
--- mmap.c	2001/02/02 03:37:18	1.19
+++ mmap.c	2001/03/14 21:11:55
@@ -190,6 +190,7 @@ unsigned long do_mmap_pgoff(struct file 
 {
 	struct mm_struct * mm = current->mm;
 	struct vm_area_struct * vma;
+	struct inode *inode = NULL;
 	int correct_wcount = 0;
 	int error;
 
@@ -223,17 +224,18 @@ unsigned long do_mmap_pgoff(struct file 
 	 * of the memory object, so we don't do any here.
 	 */
 	if (file != NULL) {
+		inode = file->f_dentry->d_inode;
 		switch (flags & MAP_TYPE) {
 		case MAP_SHARED:
 			if ((prot & PROT_WRITE) && !(file->f_mode & FMODE_WRITE))
 				return -EACCES;
 
 			/* Make sure we don't allow writing to an append-only file.. */
-			if (IS_APPEND(file->f_dentry->d_inode) && (file->f_mode & FMODE_WRITE))
+			if (IS_APPEND(inode) && (file->f_mode & FMODE_WRITE))
 				return -EACCES;
 
 			/* make sure there are no mandatory locks on the file. */
-			if (locks_verify_locked(file->f_dentry->d_inode))
+			if (locks_verify_locked(inode))
 				return -EAGAIN;
 
 			/* fall through */
@@ -253,11 +255,20 @@ unsigned long do_mmap_pgoff(struct file 
 	if (flags & MAP_FIXED) {
 		if (addr & ~PAGE_MASK)
 			return -EINVAL;
+	} else if (inode && (flags & MAP_SHARED)) {
+		if (inode->i_mapping->i_mmap_shared) {
+			addr = get_shared_area(addr, len, inode->i_mmap_offset + (pgoff << PAGE_SHIFT));
+		} else {
+			addr = get_unmapped_area(addr, len);
+			if (addr) {
+				inode->i_mmap_offset = (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1);
+			}
+		}
 	} else {
 		addr = get_unmapped_area(addr, len);
-		if (!addr)
-			return -ENOMEM;
 	}
+	if (!addr)
+		return -ENOMEM;
 
 	/* Determine the object being mapped and call the appropriate
 	 * specific mapper. the address has already been validated, but
@@ -348,7 +359,7 @@ unsigned long do_mmap_pgoff(struct file 
 
 	insert_vm_struct(mm, vma);
 	if (correct_wcount)
-		atomic_inc(&file->f_dentry->d_inode->i_writecount);
+		atomic_inc(&inode->i_writecount);
 	
 	mm->total_vm += len >> PAGE_SHIFT;
 	if (flags & VM_LOCKED) {
@@ -359,7 +370,7 @@ unsigned long do_mmap_pgoff(struct file 
 
 unmap_and_free_vma:
 	if (correct_wcount)
-		atomic_inc(&file->f_dentry->d_inode->i_writecount);
+		atomic_inc(&inode->i_writecount);
 	vma->vm_file = NULL;
 	fput(file);
 	/* Undo any partial mapping done by a device driver. */
@@ -376,6 +387,30 @@ free_vma:
  * Return value 0 means ENOMEM.
  */
 #ifndef HAVE_ARCH_UNMAPPED_AREA
+
+#define DCACHE_ALIGN(addr) ((addr) &~ (SHMLBA - 1))
+
+unsigned long get_shared_area(unsigned long addr, unsigned long len, unsigned int offset)
+{
+	struct vm_area_struct *vmm;
+	offset &= SHMLBA - 1;
+
+	if (len > TASK_SIZE)
+		return 0;
+	if (!addr)
+		addr = TASK_UNMAPPED_BASE;
+	addr = DCACHE_ALIGN(addr - offset) + offset;
+
+	for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) {
+		/* At this point:  (!vmm || addr < vmm->vm_end). */
+		if (TASK_SIZE - len < addr)
+			return 0;
+		if (!vmm || addr + len <= vmm->vm_start)
+			return addr;
+		addr = DCACHE_ALIGN(vmm->vm_end - offset) + offset;
+	}
+}
+
 unsigned long get_unmapped_area(unsigned long addr, unsigned long len)
 {
 	struct vm_area_struct * vmm;
Index: mm/mremap.c
===================================================================
RCS file: /home/cvs/parisc/linux/mm/mremap.c,v
retrieving revision 1.7
diff -u -p -r1.7 mremap.c
--- mremap.c	2001/01/25 00:03:36	1.7
+++ mremap.c	2001/03/14 21:11:55
@@ -276,7 +276,11 @@ unsigned long do_mremap(unsigned long ad
 	ret = -ENOMEM;
 	if (flags & MREMAP_MAYMOVE) {
 		if (!(flags & MREMAP_FIXED)) {
-			new_addr = get_unmapped_area(0, new_len);
+			if (vma->vm_file && (vma->vm_flags & VM_SHARED)) {
+				new_addr = get_shared_area(0, new_len, vma->vm_file->f_dentry->d_inode->i_mmap_offset + (vma->vm_pgoff << PAGE_SHIFT));
+			} else {
+				new_addr = get_unmapped_area(0, new_len);
+			}
 			if (!new_addr)
 				goto out;
 		}


_______________________________________________
parisc-linux-cvs mailing list
parisc-linux-cvs@lists.parisc-linux.org
http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux-cvs

-- 
Revolutions do not require corporate support.




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] perl-5.6.0 build problems
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On Wed, 14 Mar 2001, Paul J.Y. Lahaie wrote:

> If I use the debian build (with the patch), perl.static and perl.debug
> complete building, but a dynamic version crashes immediately on startup
> from loading libperl.so.5.6.0 with the following fault:

Is this with the latest fix to gcc?

date: 2001/03/14 04:19:13;  author: amodra;  state: Exp;  lines: +5 -0
Don't assume a LO_SUM is fixed except during alias analysis.

Alan
-- 
Linuxcare





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On Thu, 15 Mar 2001, Alan Modra wrote:

> On Wed, 14 Mar 2001, Paul J.Y. Lahaie wrote:
> 
> > If I use the debian build (with the patch), perl.static and perl.debug
> > complete building, but a dynamic version crashes immediately on startup
> > from loading libperl.so.5.6.0 with the following fault:
> 
> Is this with the latest fix to gcc?

Ermm, should have read your last message first.  What about all the
libraries that perl is loading though?  And where did the crash occur?

You can find the crash location within a shared lib by doing

ldd <binary that crashed ie. miniperl>

Note the load addresses, and compare against do_fage_fault dump IAOQ.
Then

objdump -d <library> | less

To double check, the instruction that faulted should be the same as the
do_page_fault IIR.





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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] perl-5.6.0 build problems
Date: Wed, 14 Mar 2001 19:22:42 -0500 (EST)
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To: alan@linuxcare.com.au (Alan Modra)
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> On Thu, 15 Mar 2001, Alan Modra wrote:
> 
> > On Wed, 14 Mar 2001, Paul J.Y. Lahaie wrote:
> > 
> > > If I use the debian build (with the patch), perl.static and perl.debug
> > > complete building, but a dynamic version crashes immediately on startup
> > > from loading libperl.so.5.6.0 with the following fault:
> > 
> > Is this with the latest fix to gcc?

Alan is correct that the LO_SUM patch is very important for pic code.

This patch probably isn't in the tree
<http://gcc.gnu.org/ml/gcc-patches/2001-03/msg00524.html>.  I found it
in pic code using long longs.  Richard Kenner recently fixed aliasing
problems affecting both pic and non pic code
<http://gcc.gnu.org/ml/gcc-patches/2001-03/msg00725.html>.  It fixed
problems with insns being incorrectly deleted.  I know there is at least
one testsuite problem left for pic code that isn't there for non pic code.
This appears at -O3, so you might try reducing your opt level.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: [parisc-linux] Re: new debs built, c++ is broken
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Xref: news.gmane.org gmane.linux.ports.parisc:10525

[copying to the list, as this may help people debug similar problems]

(gdb) bt
#0  0x0000d22c in __register_frame_info (begin=0x42e68, ob=0x4f7cc)
    at /src/parisc/gcc/gcc/frame-dwarf2.c:561
#1  0x0000afe0 in frame_dummy ()
#2  0x0000a4f8 in _init ()

Disassembling the functions in question,

__register_frame_info is PIC
frame_dummy is not PIC, and trashes r19
_init is PIC

which expains the crash.  The next question is why do we have such a mess
of pic/non-pic code?  Running the compile with -Wl,-M to turn on linker
map output helps a bit, and shows that
__register_frame_info comes from /usr/lib/gcc-lib/hppa-linux/2.97/libgcc.a
frame_dummy comes from /usr/lib/gcc-lib/hppa-linux/2.97/crtbegin.o
_init is cobbled together from crti.o, crtbegin.o, crtend.o, crtn.o

So it seems the problem is really a result of our decision to make libgcc 
PIC, and a possible fix is to always link with crtbeginS.o and crtendS.o.
OK, we can do that by editing /usr/lib/gcc-lib/hppa-linux/2.97/specs and
make *startfile: end up with .... crti.o%s crtbeginS.o%s, and *endfile: be
crtendS.o%s crtn.o%s

Now I get a little further

alan@tea:/scsi/tmp$ ./c++hello 
Hello
Segmentation fault (core dumped)

So now we've likely got a problem with destructors.  To be continued...

Alan
-- 
Linuxcare.





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Subject: Re: [parisc-linux] Re: new debs built, c++ is broken
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> [copying to the list, as this may help people debug similar problems]
> 
> (gdb) bt
> #0  0x0000d22c in __register_frame_info (begin=0x42e68, ob=0x4f7cc)
>     at /src/parisc/gcc/gcc/frame-dwarf2.c:561
> #1  0x0000afe0 in frame_dummy ()
> #2  0x0000a4f8 in _init ()
> 
> Disassembling the functions in question,
> 
> __register_frame_info is PIC
> frame_dummy is not PIC, and trashes r19
> _init is PIC
> 
> which expains the crash.  The next question is why do we have such a mess
> of pic/non-pic code?  Running the compile with -Wl,-M to turn on linker

Uh?  Non pic code has always called pic code in libgcc.  Trashing r19
in frame_dummy shouldn't be a problem.  Is the return through a stub?
I suspect _init shouldn't be pic.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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Subject: Re: [parisc-linux] Re: new debs built, c++ is broken
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On Thu, 15 Mar 2001, John David Anglin wrote:

> Uh?  Non pic code has always called pic code in libgcc.  Trashing r19
> in frame_dummy shouldn't be a problem.

The only reason pic code can be called from non-pic is that the linker
inserts magic stubs.  For some reason, that's not happening here on the
call from frame_dummy to __register_frame_info.  You're right though, it
should work.

Alan
-- 
Linuxcare





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On Thu, 15 Mar 2001, Alan Modra wrote:

> On Thu, 15 Mar 2001, John David Anglin wrote:
> 
> > Uh?  Non pic code has always called pic code in libgcc.  Trashing r19
> > in frame_dummy shouldn't be a problem.
> 
> The only reason pic code can be called from non-pic is that the linker
> inserts magic stubs.  For some reason, that's not happening here on the
> call from frame_dummy to __register_frame_info.  You're right though, it
> should work.

This fixes the linker problem.  We had a function that happened to
have it's address taken and thus had a plabel, that also needed a non-PIC
to PIC call stub.

bfd/ChangeLog
	* elf32-hppa.c (elf32_hppa_link_hash_entry): Add maybe_pic_call.
	(hppa_link_hash_newfunc): Init it.
	(hppa_type_of_stub): Only use non-PIC to PIC call stub if caller
	section appears to be non-PIC.
	(final_link_relocate): Likewise.
	(elf32_hppa_adjust_dynamic_symbol): Set maybe_pic_call for any
	possible candidate function, and set pic_call for those that will
	only have a .plt entry for the PIC call stub.
	(hppa_handle_PIC_calls): Set maybe_pic_call.

Unfortunately, c++ progs still crash due to the unwind frame info list
head being trashed.  Haven't found out why yet, and I'm ready to crash
myself.

Alan Modra
-- 
Linuxcare

Index: bfd/elf32-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
retrieving revision 1.28
diff -u -p -r1.28 elf32-hppa.c
--- elf32-hppa.c	2001/03/08 21:03:58	1.28
+++ elf32-hppa.c	2001/03/15 13:26:03
@@ -225,6 +225,10 @@ struct elf32_hppa_link_hash_entry {
 #endif
 
   /* Set during a static link if we detect a function is PIC.  */
+  unsigned int maybe_pic_call:1;
+
+  /* Set if the only reason we need a .plt entry is for a non-PIC to
+     PIC function call.  */
   unsigned int pic_call:1;
 
   /* Set if this symbol is used by a plabel reloc.  */
@@ -490,6 +494,7 @@ hppa_link_hash_newfunc (entry, table, st
 #if ! LONG_BRANCH_PIC_IN_SHLIB || RELATIVE_DYNAMIC_RELOCS
       ret->reloc_entries = NULL;
 #endif
+      ret->maybe_pic_call = 0;
       ret->pic_call = 0;
       ret->plabel = 0;
       ret->plt_abs = 0;
@@ -721,7 +726,7 @@ hppa_type_of_stub (input_sec, rel, hash,
 	      && hash->elf.plt.offset != (bfd_vma) -1)
 	  || hash->elf.root.type == bfd_link_hash_undefweak
 	  || hash->elf.root.type == bfd_link_hash_undefined
-	  || hash->pic_call))
+	  || (hash->maybe_pic_call && !(input_sec->flags & SEC_HAS_GOT_REF))))
     {
       /* If output_section is NULL, then it's a symbol defined in a
 	 shared library.  We will need an import stub.  Decide between
@@ -1890,6 +1895,14 @@ elf32_hppa_adjust_dynamic_symbol (info, 
   if (h->type == STT_FUNC
       || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
     {
+      if (!info->shared
+	  && h->plt.refcount > 0
+	  && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
+	  && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)
+	{
+	  ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1;
+	}
+
       if (h->plt.refcount <= 0
 	  || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
 	      && h->root.type != bfd_link_hash_defweak
@@ -1906,14 +1919,8 @@ elf32_hppa_adjust_dynamic_symbol (info, 
 
 	  /* As a special sop to the hppa ABI, we keep a .plt entry
 	     for functions in sections containing PIC code.  */
-	  if (!info->shared
-	      && h->plt.refcount > 0
-	      && (h->root.type == bfd_link_hash_defined
-		  || h->root.type == bfd_link_hash_defweak)
-	      && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)
-	    {
-	      ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1;
-	    }
+	  if (((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call)
+	    ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1;
 	  else
 	    {
 	      h->plt.offset = (bfd_vma) -1;
@@ -2059,6 +2066,7 @@ hppa_handle_PIC_calls (h, inf)
     }
 
   h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+  ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1;
   ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1;
 
   info = (struct bfd_link_info *) inf;
@@ -3244,11 +3252,12 @@ final_link_relocate (input_section, cont
 	 find the import stub in the stub hash.  */
       if (sym_sec == NULL
 	  || sym_sec->output_section == NULL
-	  || (h != NULL &&
-	      (h->pic_call
-	       || (h->elf.root.type == bfd_link_hash_defweak
-		   && h->elf.dynindx != -1
-		   && h->elf.plt.offset != (bfd_vma) -1))))
+	  || (h != NULL
+	      && ((h->maybe_pic_call
+		   && !(input_section->flags & SEC_HAS_GOT_REF))
+		  || (h->elf.root.type == bfd_link_hash_defweak
+		      && h->elf.dynindx != -1
+		      && h->elf.plt.offset != (bfd_vma) -1))))
 	{
 	  stub_entry = hppa_get_stub_entry (input_section, sym_sec,
 					    h, rel, hplink);





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From: Alan Modra <alan@linuxcare.com.au>
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On Fri, 16 Mar 2001, Alan Modra wrote:

> Unfortunately, c++ progs still crash due to the unwind frame info list
> head being trashed.

Merging with current gcc_3.0 didn't cure the problem either.  Haven't yet
recompiled glibc with the newest compiler - started a configure of glibc,
and it seems to think gcc's version number, now 3.0, is too old.  Heh.  At
least that's easily fixed.

Alan
-- 
Linuxcare





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On Fri, 16 Mar 2001, Alan Modra wrote:
> On Fri, 16 Mar 2001, Alan Modra wrote:
> > Unfortunately, c++ progs still crash due to the unwind frame info list
> > head being trashed.
> 
> Merging with current gcc_3.0 didn't cure the problem either.

Lots of stepi's and strategically placed breakpoints under gdb revealed
that libgcc2:init_reg_size_table was the culprit trashing memory.  From
there it's plain sailing...

I reckon this patch will cure the problem, which I'm testing right
now.  New gcc debs again, I'm afraid.  Anybody like to voice an opinion
for/against moving to the merge I've just done with sourceware
gcc_3.0?  Looks good so far.

Index: gcc/config/pa/pa32-regs.h
===================================================================
RCS file: /home/cvs/parisc/gcc/gcc/config/pa/pa32-regs.h,v
retrieving revision 1.2
diff -u -p -r1.2 pa32-regs.h
--- pa32-regs.h	2001/02/19 13:54:41	1.2
+++ pa32-regs.h	2001/03/16 03:21:41
@@ -188,6 +188,11 @@
   ((REGNO) <= 31 ? (REGNO) :						\
    ((REGNO) <= 87 ? (REGNO) + 40 : 32))
 
+/* We must not use the DBX register numbers for the DWARF 2 CFA column
+   numbers because that maps to numbers beyond FIRST_PSEUDO_REGISTER.
+   Instead use the identity mapping.  */
+#define DWARF_FRAME_REGNUM(REG) REG
+
 /* Define the classes of registers for register constraints in the
    machine description.  Also define ranges of constants.
 
Index: gcc/config/pa/pa64-regs.h
===================================================================
RCS file: /home/cvs/parisc/gcc/gcc/config/pa/pa64-regs.h,v
retrieving revision 1.2
diff -u -p -r1.2 pa64-regs.h
--- pa64-regs.h	2001/02/19 13:54:42	1.2
+++ pa64-regs.h	2001/03/16 03:21:41
@@ -176,6 +176,11 @@ Boston, MA 02111-1307, USA.  */
   ((REGNO) <= 31 ? (REGNO) :						\
    ((REGNO) > 31 && (REGNO) <= 60 ? (REGNO - 32) * 2 + 72 : 32))
 
+/* We must not use the DBX register numbers for the DWARF 2 CFA column
+   numbers because that maps to numbers beyond FIRST_PSEUDO_REGISTER.
+   Instead use the identity mapping.  */
+#define DWARF_FRAME_REGNUM(REG) REG
+
 /* Define the classes of registers for register constraints in the
    machine description.  Also define ranges of constants.
 
Alan
-- 
Linuxcare






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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] semaphore problem
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as i suspected, the pipe problem was a semaphore problem.  here's how
it works:

P1: down() count = 0
P2: down() -> __down() -> schedule() count = -1
P1: up() -> wake_up() [P1 placed on runqueue] count = 0
P1: down() -> __down() -> schedule() count = -1

now P2 gets scheduled, sees count is -1, assumes it missed the wakeup
and goes back to sleep.  both tasks are now sleeping on the same semaphore.

i'm going to bed now.  'night!

-- 
Revolutions do not require corporate support.




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] tracing through sig handlers
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Hi Alan,

If I do this:


Index: arch/parisc/kernel/signal.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/signal.c,v
retrieving revision 1.37
diff -u -r1.37 signal.c
--- signal.c	2001/02/09 14:39:08	1.37
+++ signal.c	2001/03/16 10:29:48
@@ -260,6 +260,8 @@
 		/* regs->iaoq is undefined in the syscall return path */
 		err |= __put_user(regs->gr[31], &sc->sc_iaoq[0]);
 		err |= __put_user(regs->gr[31]+4, &sc->sc_iaoq[1]);
+		err |= __put_user(regs->sr[3], &sc->sc_iasq[0]);
+		err |= __put_user(regs->sr[3], &sc->sc_iasq[1]);
 #if DEBUG_SIG
 		printk("setup_sigcontext: iaoq %#lx/%#lx\n", regs->gr[31], regs->gr[31]);
 #endif


Then I can strace my little test prog. that sends itself a signal
while the signal is blocked, and then unblocks the signal.

I havn't worked out why this is only apparently necessary when a process
is being traced.

It makes things better with gdb also, but not perfect.  The problem
now is that when you try to step out of the signal handler the program
under test just runs on without stopping.  Previously it would have
crashed with an invalid iasq[].

Richard





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On Fri, 16 Mar 2001, Richard Hirst wrote:

> I havn't worked out why this is only apparently necessary when a process
> is being traced.

I'm not even going to attempt to figure out why. :-)  Perhaps one of te
kernel gurus can shed some light.

> It makes things better with gdb also, but not perfect.  The problem
> now is that when you try to step out of the signal handler the program
> under test just runs on without stopping.

gdb is still confused about signal handler frames, and I haven't managed
to fix that today.  Too many other fires to fight.

Alan
-- 
Linuxcare





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Subject: [parisc-linux] New glibc on 715/75
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I am trying the glibc etc from newcompilers-20010314 on my 715/75.
It seems anything that is dynamically linked hangs on exit.

I am booting with init=/bin/sash, and have static and dynamic
versions of hello-world (in C, not C++), and of gdb.

I can run the static programs ok, but if I run the dynamic hello-world
it outputs HelloWorld and then goes to sleep.  Console still echoes,
but I don't get the sash prompt back.

This isn't a particularly new problem - I havn't had a working 715/75
root fs since the attempt to part-fix libpthread.

Richard





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Hi guys!

I would like to make a new kernel for my HPs. Where , and - even more important - HOW can I get the sources to do so?
Please advise, its pretty urgent!!!

Thanx in advance for your help, I very much appreciate what you do!!

Jay  






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On Fri, Mar 16, 2001 at 01:05:49PM +0100, Jay Konrad wrote:
> Hi guys!
> 
> I would like to make a new kernel for my HPs. Where , and - even more important - HOW can I get the sources to do so?
> Please advise, its pretty urgent!!!
> 
> Thanx in advance for your help, I very much appreciate what you do!!

I don't understand.  Did you not see the link saying `Building the kernel'
on the front page of the website?  Or are the instructions on that page
insufficiently clear?

-- 
Revolutions do not require corporate support.




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On Fri, Mar 16, 2001 at 11:55:35AM +0000, Richard Hirst wrote:
> I am trying the glibc etc from newcompilers-20010314 on my 715/75.
> It seems anything that is dynamically linked hangs on exit.

Hangs in this loop:

0x40014150 <__hppa_make_fptr+56>:       ldw 5f0(sr0,r1),r1
0x40014154 <__hppa_make_fptr+60>:       ldcw  0(sr0,r1),r1
0x40014158 <__hppa_make_fptr+64>:       cmpib,= 0,r1,0x40014150 <__hppa_make_fptr+56>
0x4001415c <__hppa_make_fptr+68>:       addil 0,r19,%r1

r19 = 4001a930.

For a good run on the B180, I get in to this code with the
same r19.  r1=r19, r1+0x5f0=0x4001af20

0x4001af20 <errno+1848>:        0x4001a7c8

0x4001a7c8 <__hppa_fptr_lock>:  0x00000001


Presumably on the 715/75 __hppa_fptr_lock is zero.

(gdb) bt
#0  0x40014150 in __hppa_make_fptr (sym_map=0x4001c508, value=1075005768, 
    root=0x4001a7cc, mem=0x0) at ../linuxthreads/sysdeps/hppa/pt-machine.h:44
#1  0x40014108 in _dl_function_address (map=0x4001c508, start=1075005768)
    at ../sysdeps/hppa/dl-symaddr.c:38
#2  0x4000f5e0 in _dl_fini () at dl-fini.c:170
#3  0x40060ff4 in exit () from /lib/libc.so.6
#4  0x40047460 in __libc_start_main () from /lib/libc.so.6
#5  0x0000139c in _start ()
#6  0x40014108 in _dl_function_address (map=0x4001c508, start=1075005768)
    at ../sysdeps/hppa/dl-symaddr.c:38

__hppa_make_fptr() is in sysdeps/hppa/dl-fptr.c


Richard





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Alan

> I reckon this patch will cure the problem, which I'm testing right
> now.  New gcc debs again, I'm afraid.  Anybody like to voice 
> an opinion for/against moving to the merge I've just done with
> sourceware gcc_3.0?  Looks good so far.

As you can tell :), I am in risk averse mode.  So, my opinion is - NO MERGE,
unless we have specific compelling reasons to do so.

If the patch you have solves the C++ problem (the only significant toolchain
issue at the moment), then why move up?  There may very well be some good
reasons ... I just don't know what they are.

Yes, keeping in sync with 3.0 has its advantages, but it is a moving target
and we know we will be out of sync with it.  Merging now doesn't solve the
general problem of, eventually, getting to an official 3.0 base for PA.

Alan

 




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Subject: Re: [parisc-linux] Re: new debs built, c++ is broken
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> > I reckon this patch will cure the problem, which I'm testing right
> > now.  New gcc debs again, I'm afraid.  Anybody like to voice 
> > an opinion for/against moving to the merge I've just done with
> > sourceware gcc_3.0?  Looks good so far.
> 
> As you can tell :), I am in risk averse mode.  So, my opinion is - NO MERGE,
> unless we have specific compelling reasons to do so.

I am of the opposite opinion.  The 3.0 is approaching release.  Alan has
some patches in his branch that haven't been vetted for sourceware 3.0
and now is a good time to have them vetted.  Gcc releases don't come
very often and it would be good if 3.0 had the features and fixes needed
for parisc-linux.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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> > > I reckon this patch will cure the problem, which I'm testing right
> > > now.  New gcc debs again, I'm afraid.  Anybody like to voice 
> > > an opinion for/against moving to the merge I've just done with
> > > sourceware gcc_3.0?  Looks good so far.
> > 
> > As you can tell :), I am in risk averse mode.  So, my 
> > opinion is - NO MERGE, unless we have specific compelling
> > reasons to do so.
> 
> I am of the opposite opinion.  The 3.0 is approaching 
> release.  Alan has some patches in his branch that haven't
> been vetted for sourceware 3.0 and now is a good time to
> have them vetted.  Gcc releases don't come very often and it
> would be good if 3.0 had the features and fixes needed
> for parisc-linux.

OK, here is what I was thinking.  I agree we want to get any/all PA changes
merged upstream into 3.0.  Great, lets do it.

What I am more concerned about is whether we adopt the new top-o-tree gcc3
with these changes, or whether we just keep the existing compiler we have
with the patch that Alan provided.  The reason I am being anal about this is
that we are trying to provide a "release" in May.  Because of this, I would
really like to identify and freeze the candidate toolchain for this release
ASAP.  Unless we do this soon, we risk the May release.  The toolchain has
been in constant change, making it very difficult to stabalize an image that
is useful to a broader audience.  After May (or before that on a branch), I
am less concerned.

BTW, a basic goal of the May release is to provide a reasonably stable image
that can be used for 64-bit systems (A500, L-class, ...).  At a high level,
the basic characteristics of the release will be:
- finish some key kernel stuff (SMP, large physical memory, ...)
- a target set of debs (with a focus on server oriented stuff)
- reasonable stability

My two cents,
Alan
 





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Re: New glibc on 715/75
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Xref: news.gmane.org gmane.linux.ports.parisc:10541

On Fri, Mar 16, 2001 at 04:25:17PM +0000, Richard Hirst wrote:
> On Fri, Mar 16, 2001 at 11:55:35AM +0000, Richard Hirst wrote:
> > I am trying the glibc etc from newcompilers-20010314 on my 715/75.
> > It seems anything that is dynamically linked hangs on exit.
> 
> Hangs in this loop:
> 
> 0x40014150 <__hppa_make_fptr+56>:       ldw 5f0(sr0,r1),r1
> 0x40014154 <__hppa_make_fptr+60>:       ldcw  0(sr0,r1),r1
> 0x40014158 <__hppa_make_fptr+64>:       cmpib,= 0,r1,0x40014150 <__hppa_make_fptr+56>
> 0x4001415c <__hppa_make_fptr+68>:       addil 0,r19,%r1
> 
> r19 = 4001a930.
> 
> For a good run on the B180, I get in to this code with the
> same r19.  r1=r19, r1+0x5f0=0x4001af20
> 
> 0x4001af20 <errno+1848>:        0x4001a7c8
> 
> 0x4001a7c8 <__hppa_fptr_lock>:  0x00000001

Arggh!  That's not 16 byte aligned.

>From glibc/sysdeps/hppa/dl-fptr.c:

static int __hppa_fptr_lock = 1;

Needs to be

static int __attribute__((aligned(16))) __hppa_fptr_lock = 1;

Richard





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Subject: Re: [parisc-linux] Re: new debs built, c++ is broken
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> I was of the impression that we weren't allowed to put in any patches to
> the 3.0 branch that were not specifically aimed at getting 3.0 released
> on the target architectures (and hppa-linux is not one of these).
> 
> I'd love to see support for us in 3.0.

You might have to make a case but I note the following recent patch:

2001-03-15  Steve Ellcey  <sje@cup.hp.com>

        * config.gcc (ia64*-*-hpux*): New case.
	* config/ia64/hpux.h: New file for HP-UX support.
	* config/ia64/t-hpux: New file for HP-UX support.

The guidelines for 3.0 patches are here:
<http://gcc.gnu.org/ml/gcc/2001-02/msg00403.html>.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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On Fri, Mar 16, 2001 at 01:27:22PM -0500, John David Anglin wrote:
> I am of the opposite opinion.  The 3.0 is approaching release.  Alan has
> some patches in his branch that haven't been vetted for sourceware 3.0
> and now is a good time to have them vetted.  Gcc releases don't come
> very often and it would be good if 3.0 had the features and fixes needed
> for parisc-linux.

I was of the impression that we weren't allowed to put in any patches to
the 3.0 branch that were not specifically aimed at getting 3.0 released
on the target architectures (and hppa-linux is not one of these).

I'd love to see support for us in 3.0.

-- 
Revolutions do not require corporate support.




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If/when superdome is configured to be NUMA (i.e., have some memory that is 
not interleaved across all cells), the non-interleaved memory will show up 
in the physical address space above 512Gb.  This is a problem for HP-UX, 
because there are a couple places where physical addresses are stored in 
bitfields too small to contain these addresses.

Does 64-bit parisc-linux have any similar issues?  What is the supported 
physical address size?  I don't know how far above 512Gb memory can go; 
it's sparse, so it could be quite a ways.  I know superdome supports up to 
44-bit addressing, so I guess that's probably the worst case right now.

Bjorn




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Re: new debs built, c++ is broken
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On Fri, 16 Mar 2001, John David Anglin wrote:

> You might have to make a case but I note the following recent patch:
> 
> 2001-03-15  Steve Ellcey  <sje@cup.hp.com>

Aye, but isn't ia64 "flavour of the month"?  :-)

As far as I can see, the difficulties with getting hppa-linux in are:

a) In order to support hppa-linux cleanly without duplicating lots on
header file defines, I split out various things in existing config/pa
headers.  That means there is potential for HPUX breakage.  HPUX support
doesn't break, but that's almost beside the point.

b) Some patches I made really attacked symptoms rather than causes.  I'd
need to remove these before support as a whole can go in.  Of course, we'd
need to be sure that our compiler isn't broken if I remove the bandaids.

c) Having time to do it.

Alan
-- 
Linuxcare






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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] semaphore problem
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On Fri, Mar 16, 2001 at 06:25:49AM +0000, Matthew Wilcox wrote:
> 
> as i suspected, the pipe problem was a semaphore problem.  here's how
> it works:

OK, I've redesigned the semaphore code on the whiteboard.  Here's how it
works.

The `count' variable is initialised to N for N simultaneous accesses.
A value of 0 indicates there are no processes waiting.  A value of -1
indicates there are processes waiting.  Each up() increments the count by
1 if non-negative.  if negative, it _decrements the count.  So we can
distinguish between the following cases:

 N : N more processes allowed in
 0 : no new processes allowed in, none waiting
-1 : processes waiting, no wakeups in flight
-N : N - 1 wakeups in flight

This allows us to implement wakeup stealing if we want.  Unsure about
starvation issues in that case.  Think about two processes; process A
down down() up() down() up() very frequently.  process B does a down().
do we want to switch to B the next time A does an up()?  or do we want
A to steal B's wakeup?

i shan't implement it now, but it's something to consider.

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] semaphore problem
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On Sat, Mar 17, 2001 at 02:34:31AM +0000, Matthew Wilcox wrote:
> On Fri, Mar 16, 2001 at 06:25:49AM +0000, Matthew Wilcox wrote:
> > 
> > as i suspected, the pipe problem was a semaphore problem.  here's how
> > it works:
> 
> OK, I've redesigned the semaphore code on the whiteboard.  Here's how it
> works.

The theoretical design doesn't seem to be buggy, but the implementation
was, alas.  Fortunately, the bug would only show up with semaphores that
allowed multiple accesses simultaneously.  Here was the situation:

sema_init(2);
P1 down()  2 ->  1
P2 down()  1 ->  0
P3 down()  0 -> -1
P1 up()   -1 -> -2
P2 up()   -2 -> -3
P3 wakes up and sets -3 -> 0
P3 up()    0 ->  1

and we've lost one of the slots.

the rewrite makes P3 set -3 to 1 when it wakes up, so we don't lose a slot.

> This allows us to implement wakeup stealing if we want.  Unsure about

i noticed it now will steal wakeups.  Ah well.  We probably want to do
that anyway.

-- 
Revolutions do not require corporate support.




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From: Brian Stewart <pdksh@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Stable kernel for HP9000 710
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I have read the posts for the past couple of months and I am intreasted
in a stable, or runnable kernel for the HP9000 710. It appears that the
SCSI and LAN adapters are not supported properly in the latest kernel
revs. I have had simmilar results as earlier posts.

Did the 710 ever work and just got broken? Does anyone have pa-linux
running on a 710? I am currently running mk-linux but it is old and has
its own problems.

Thank You
Brian Stewart

_________________________________________________________
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From: "William Carlsson" <william.carlsson@teligent.se>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Linux on HP 712/60 - or 9000/E45 (826) ?
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Neither of those 2 machines boots up on the iso,
the 712 halts with "pdc_cons die !!!"

I don't know if the pin-out for the terminal cable, except I've an 25-25
pin cable to the 9000
which doesn't help me very much in a 9pin port... Suggestions?

Anyone actually booted up linux on a 9000/E45 (826) or a 712 ?


----------------------------------------------------
William Carlsson
 R&D Engineer
 Second Line Support

Teligent Nordic AB
 P.O. Box 213
 S-149 21 Nynshamn
 SWEDEN

Telephone: +46 - 8 - 59 99 11 92

eMail: william.carlsson@teligent.se
http://www.teligent.se
----------------------------------------------------
"And then it comes to be that the soothing light
   at the end of your tunnel was just a freight
            train, comin' your way."





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<BODY>
<DIV><SPAN class=3D470080714-19032001><FONT face=3DArial =
size=3D2>Neither of those 2=20
machines boots up on the iso,</FONT></SPAN></DIV>
<DIV><SPAN class=3D470080714-19032001><FONT face=3DArial size=3D2>the =
712 halts with=20
"pdc_cons die !!!"</FONT></SPAN></DIV>
<DIV>&nbsp;</DIV>
<DIV><SPAN class=3D470080714-19032001></SPAN><FONT face=3DArial><FONT =
size=3D2>I<SPAN=20
class=3D470080714-19032001> don't know if the pin-out for the terminal =
cable,=20
except I've an 25-25 pin cable to the 9000</SPAN></FONT></FONT></DIV>
<DIV><SPAN class=3D470080714-19032001></SPAN><SPAN=20
class=3D470080714-19032001></SPAN><FONT face=3DArial><FONT =
size=3D2>w<SPAN=20
class=3D470080714-19032001>hich doesn't help me very much in a 9pin =
port...=20
Suggestions?</SPAN></FONT></FONT></DIV>
<DIV><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D470080714-19032001></SPAN></FONT></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial><FONT size=3D2><SPAN =
class=3D470080714-19032001>Anyone=20
actually booted up linux on a 9000/E45 (826) or a 712=20
?</SPAN></FONT></FONT></DIV>
<DIV><BR></DIV>
<P><FONT =
size=3D2>----------------------------------------------------<BR>William =

Carlsson<BR>&nbsp;R&amp;D Engineer<BR>&nbsp;Second Line =
Support<BR><BR>Teligent=20
Nordic AB<BR>&nbsp;P.O. Box 213<BR>&nbsp;S-149 21=20
Nyn=E4shamn<BR>&nbsp;SWEDEN<BR><BR>Telephone: +46 - 8 - 59 99 11 =
92<BR><BR>eMail:=20
william.carlsson@teligent.se<BR><A target=3D_blank=20
href=3D"http://www.teligent.se/">http://www.teligent.se</A><BR>----------=
------------------------------------------<BR>"And=20
then it comes to be that the soothing light<BR>&nbsp;&nbsp; at the end =
of your=20
tunnel was just a=20
freight<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;=20
train, comin' your way."<BR><BR>&nbsp;</FONT> </P>
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------=_NextPart_000_0088_01C0B089.846CB9E0--





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From: Robert Liesenfeld <xunil96@yahoo.com>
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Subject: [parisc-linux] 735/125 Install Woes
Date: Mon, 19 Mar 2001 07:35:26 -0800 (PST)
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Greetings-

I'm trying to get palinux installed on my 735/125.  I've got serial console on it (laptop + serial
cable + minicom), a 4GB SCSI disk installed.  This machine has previously run HP-UX 10.20 just
fine.  When I try to boot either the lifimage I found on the FTP site, or the CD (palinux-0.5 ISO
from the FTP server), I get the following:

High Priority Machine Check (HPMC): Code=1 regs=c0266080 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001011
... etc ...

I can paste the remainder of the output if it is relevant, but I was hoping there was a simple
explanation for this, even if it is "it won't work, forget it."  :)

As a side note, is there anyone in the palinux community that is successfully running on a 735?

Thanks,

-R

__________________________________________________
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Get email at your own domain with Yahoo! Mail. 
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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Linux on HP 712/60 - or 9000/E45 (826) ?
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Hi William,

	Here, we have already working a A500, a B132 and a few 712 and 715. If you want
more info, you should go to the PA/Linux official web
site(http://www.parisc-linux.org) or to our page at http://www.esiee.fr/puffin.
You will find in these two websites all you need. Soon, our team will release a
new File System image with the latest debs. 

So good luck, Thomas




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From: Konstantinos Margaritis <markos@feanor.nuclear.demokritos.gr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Keyboard problem on 715/80
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Hi,
  I got me a 715/80 to try to play with linux, but with no keyboard or
mouse. Instead of getting a HIL kbd+mouse, I got the the HIL-PS/2 adapter
from ebay and a ps/2 keyboard and mouse. Both work fine on a pc, but on
the 715/80 (which has two disks, one was included and I don't know that is
inside and the other was in a powermac). The system does not boot but
unfortunately it does nothing apart from displaying the message:

Failed to initialize a keyboard
Fix the keyboard and cycle power

It doesn't work. Anyone can show me some pointers as to what might be at
fault? Is there a jumper on the motherboard that I should set? might it be
a broken HIL port?

Anyway, Are there any web sites that offers technical info on these
machines? I mean like schematics, manuals, etc.
And another thing, what is the round button in the middle of one side of
the case? A reset? 

Thanks for any help.

Konstantinos





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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Keyboard problem on 715/80
Date: Mon, 19 Mar 2001 21:44:42 +0000
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On Mon, Mar 19, 2001 at 11:41:11PM +0200, Konstantinos Margaritis wrote:
> And another thing, what is the round button in the middle of one side of
> the case? A reset? 

that's the TOC button.  TOC stands for Transfer Of Control.  effectively,
it acts as a reset button, but there should be a way to do more
interesting things with it.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:16:57 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Efficient Pthread Implementation
Date: Tue, 20 Mar 2001 04:43:48 +0000
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Pthreads needs a way to find the address of the thread control structure
for the task which is currently running.  If we use fixed instead of
floating stacks, and don't tell it to use a different stack (unsure
what circumstances will cause this to happen, or the advantages of
configuring pthreads to use floating stacks), then everything is fine,
we can simply take the stack pointer, mask it with the stack size and
get the answer we were looking for.

If we use a different stack, then it scans the various stacks looking
to see which stack contains this stack pointer, unless the architecture
specifies a better way to find it.  x86 uses one of the segment registers,
ia64 uses a register specified in the ABI.  I propose we could use %cr27.
It's readable from userspace, and we could have a 2-insn stub on the
gateway page which sets %cr27 as necessary.  We then have to switch its
value across context switch, which doesn't seem like a big deal to me.

Comments?  Better ideas?

-- 
Revolutions do not require corporate support.




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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] The new FS of ESIEE Team is ready
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Hi all,

	The new FS is ready (~61MB). No "more" bugged with the good TERM parameter and
no password :)
It is a specially designed for 712 owners but it is a sane fs, we hope.

Please, go to our DL page: http://mkhppa1.esiee.fr/en/download.html

Good luck, Thomas
ESIEE Team




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From: Cary Coutant <cary@cup.hp.com>
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Subject: Re: [parisc-linux] Efficient Pthread Implementation
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>I propose we could use %cr27.
>It's readable from userspace, and we could have a 2-insn stub on the
>gateway page which sets %cr27 as necessary.  We then have to switch its
>value across context switch, which doesn't seem like a big deal to me.

This is what HP-UX does. We provide a lightweight system call for setting 
it. I believe that we recommend reading it at most once per procedure and 
caching it in a GR, because of the latency reading from a CR.

-cary




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>From Mark.Gittings@motorola.com Tue Mar 20 15: 54:20 2001
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From: Gittings Mark-G1TT1NGS <Mark.Gittings@motorola.com>
To: "'bame@fc.hp.com'" <bame@fc.hp.com>
Subject: Bootable CDROM
Date: Tue, 20 Mar 2001 16:51:27 -0600
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Paul,
I have downloaded a couple of two file that appear to be the required files to create a bootable cd image palinux-0.5.iso and uxbootlf. I burned the CD's using Adaptec cd creator using the iso9660 file system settings. (also the juliet) Neither of these images were able to actually boot the 755 workstation. I also attempted to compile palo mklifimage. I was wondering if you could give me any insight on either getting a bootable CDROM or getting a system booted to install Linux?
I appreciate any help you could provide.
Mark Gittings 
Motorola ITS  
mark.gittings@motorola.com <mailto:mark.gittings@motorola.com> 
847.435.7073 
pager: 1800-Skytel2 pin 1370641
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 
you cannot discover new oceans unless you have the courage to lose sight of the shore. 









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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: c++ problem
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On Wed, 21 Mar 2001, Alan Modra wrote:

> What is interesting from the above is that if my std::basic_ios::widen
> function happened to need a plt call stub, then my `hello' prog would
> crash too for the same reason.

This is probably relevant to the perl problem too, hence the extra cc's.

Take a look at the following gdb dump.  I've added a few comments `#...'

alan@tea:/scsi/tmp$ gdb test.tagg2
GNU gdb 5.0
Copyright 2001 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "hppa-linux"...(no debugging symbols found)...
(gdb) set env LD_LIBRARY_PATH=.
(gdb) b *0x1724			# The plt call stub where we crash
Breakpoint 1 at 0x1724
(gdb) b _init
Breakpoint 2 at 0x16c4
(gdb) b _start
Breakpoint 3 at 0x17b4
(gdb) r
Starting program: /scsi/tmp/test.tagg2 

Breakpoint 1, 0x00001724 in _end_init ()
(gdb) set var $dp=0x2d90	# cheat.  set up dp = $global$
(gdb) c
Continuing.

Breakpoint 1, 0x00001724 in _end_init ()
(gdb) p/x $dp
$1 = 0x2d90
(gdb) c
Continuing.

Breakpoint 1, 0x00001724 in _end_init ()
(gdb) c
Continuing.

Breakpoint 1, 0x00001724 in _end_init ()
(gdb) c
Continuing.

Breakpoint 3, 0x000017b4 in _start ()
(gdb) c
Continuing.

Breakpoint 2, 0x000016c4 in _init ()
(gdb) c
Continuing.

Breakpoint 1, 0x00001724 in _end_init ()
(gdb) disable 1
(gdb) c
Continuing.
Hello

Program exited normally.

The problem is that dp is set up in _start.  Any plt call stubs __in the
main application__ called before _start runs will die horribly.  It's OK
to call plt call stubs in a shared lib as they use r19.

I propose we set up dp in the dynamic linker to avoid this problem, as
it's quite legal to have a mix of static and dynamic libraries, each
needing to run constructors.

Alan
-- 
Linuxcare






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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: c++ problem
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On Wed, 21 Mar 2001, Alan Modra wrote:

> I propose we set up dp in the dynamic linker to avoid this problem, as
> it's quite legal to have a mix of static and dynamic libraries, each
> needing to run constructors.

I think this is all we need.  Compiling it all to test it out...

--- glibc/sysdeps/hppa/dl-machine.h~	Mon Feb 19 14:05:42 2001
+++ glibc/sysdeps/hppa/dl-machine.h	Wed Mar 21 10:45:50 2001
@@ -338,6 +338,10 @@
 	/* Save the entry point in %r3. */
 	copy	%ret0,%r3
 
+	/* Set up dp for any static lib constructors that may be called. */
+	addil	LT'$global$,%r19
+	ldw	RT'$global$(%r1),%dp
+
 	/* Remember the lowest stack address. */
 	addil	LT'__libc_stack_end,%r19
 	ldw	RT'__libc_stack_end(%r1),%r20

Alan
-- 
Linuxcare






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From: Alan Modra <alan@linuxcare.com.au>
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Subject: [parisc-linux] Re: c++ problem
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On Wed, 21 Mar 2001, Alan Modra wrote:

> On Wed, 21 Mar 2001, Alan Modra wrote:
> 
> > I propose we set up dp in the dynamic linker to avoid this problem, as
> > it's quite legal to have a mix of static and dynamic libraries, each
> > needing to run constructors.
> 
> I think this is all we need.  Compiling it all to test it out...
> 
> --- glibc/sysdeps/hppa/dl-machine.h~	Mon Feb 19 14:05:42 2001
> +++ glibc/sysdeps/hppa/dl-machine.h	Wed Mar 21 10:45:50 2001
> @@ -338,6 +338,10 @@
>  	/* Save the entry point in %r3. */
>  	copy	%ret0,%r3
>  
> +	/* Set up dp for any static lib constructors that may be called. */
> +	addil	LT'$global$,%r19
> +	ldw	RT'$global$(%r1),%dp
> +
>  	/* Remember the lowest stack address. */
>  	addil	LT'__libc_stack_end,%r19
>  	ldw	RT'__libc_stack_end(%r1),%r20

Unfortunately, this fails because we pick up the value of $global$ in
ld.so.  Has anybody got a good idea on how to solve this?  One possibility
that occurs to me is that the dynamic linker could pull out DT_PLTGOT for
the application, but I'm not sure how to do that.

Alan
-- 
Linuxcare





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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: c++ problem
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A cure!

	* sysdeps/hppa/dl-machine.h (RTLD_START): Set up dp with DT_PLTGOT
	value from application so that constructors in non-PIC libs work.

Alan Modra
-- 
Linuxcare

Index: sysdeps/hppa/dl-machine.h
===================================================================
RCS file: /home/cvs/parisc/glibc/sysdeps/hppa/dl-machine.h,v
retrieving revision 1.39
diff -u -p -r1.39 dl-machine.h
--- dl-machine.h	2000/12/13 20:12:42	1.39
+++ dl-machine.h	2001/03/21 04:36:15
@@ -255,7 +255,17 @@ elf_machine_runtime_setup (struct link_m
    The C function `_dl_start' is the real entry point;
    its return value is the user program's entry point.  */
 
-#define RTLD_START asm ("\
+#define RTLD_START \
+/* Set up dp for any static lib constructors that may be called. */	\
+static struct link_map * set_dp (struct link_map *map)		\
+{								\
+  register Elf32_Addr dp asm ("%r27");				\
+  dp = D_PTR (map, l_info[DT_PLTGOT]);				\
+  asm volatile ("" : : "r" (dp));				\
+  return map;							\
+}								\
+								\
+asm ("\
 	.text
 	.globl _start
 	.type _start,@function
@@ -331,7 +341,6 @@ _start:
 	bl	_dl_start,%rp
 	ldo	-4(%r24),%r26
 
-	/* FALLTHRU */
 	.globl _dl_start_user
 	.type _dl_start_user,@function
 _dl_start_user:
@@ -359,10 +368,14 @@ _dl_start_user:
 	stw	%r24,-44(%sp)
 
 .Lnofix:
-	/* Call _dl_init(_dl_loaded, argc, argv, envp). */
 	addil	LT'_dl_loaded,%r19
 	ldw	RT'_dl_loaded(%r1),%r26
+	bl	set_dp, %r2
 	ldw	0(%r26),%r26
+
+	/* Call _dl_init(_dl_loaded, argc, argv, envp). */
+	copy	%r28,%r26
+
 	/* envp = argv + argc + 1 */
 	sh2add	%r25,%r24,%r23
 	bl	_dl_init,%r2
@@ -389,7 +402,9 @@ __dl_fini_plabel:
 	stw	%r19,4(%r23)
 	ldw	4(%r3),%r19	/* load the object's gp */
 	bv	%r0(%r2)
-	depi	2,31,2,%r23	/* delay slot */");
+	depi	2,31,2,%r23	/* delay slot */
+");
+
 
 /* This code gets called via the .plt stub, and is used in
    dl-runtime.c to call the `fixup' function and then redirect to the





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From: =?iso-8859-1?Q?SOETE_Jo=EBl?= <JSO@EUROPAY.COM>
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Subject: [parisc-linux] RE: The new FS of ESIEE Team is ready
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To: 'Thomas Marteau' <marteaut@esiee.fr>,
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Hello Thomas,

I just finished to install and reboot with your fs_hd_20010320 on my B180.

And I am very happy to see my favorite penguin appearing for the first time
on the STI console works. Nice, great, marvelous, ... 

Also I would like to ask you additional favors: it would be nice to put on
your download site the .config file with the corresponding cvs date of the
kernel (the release of your cross-compiler could also be helpful for me) so
that I can have a good base for future rebuild or test.

Thanks again for your fs and thanks in advance for additional help,
	Joel

> -----Original Message-----
> From: Thomas Marteau [mailto:marteaut@esiee.fr]
> Sent: Tuesday, March 20, 2001 8:08 PM
> To: parisc-linux@lists.parisc-linux.org
> Cc: Giacomo Mulas; SOETE Joel; William Carlsson
> Subject: The new FS of ESIEE Team is ready
> 
> 
> Hi all,
> 
> 	The new FS is ready (~61MB). No "more" bugged with the 
> good TERM parameter and
> no password :)
> It is a specially designed for 712 owners but it is a sane 
> fs, we hope.
> 
> Please, go to our DL page: http://mkhppa1.esiee.fr/en/download.html
> 
> Good luck, Thomas
> ESIEE Team
> 


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From - Thu Nov 08 21:16:57 2018
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From: Charles Wilcox <willo@ece.wpi.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Automated Kernel Build Script.
Date: Wed, 21 Mar 2001 13:55:55 -0500 (EST)
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Xref: news.gmane.org gmane.linux.ports.parisc:10563

  This message is in MIME format.  The first part should be readable text,
  while the remaining parts are likely unreadable without MIME-aware tools.
  Send mail to mime@docserver.cac.washington.edu for more info.

--0-1152337369-985199639=:15374
Content-Type: TEXT/PLAIN; CHARSET=US-ASCII
Content-ID: <Pine.OSF.4.33.0103211334151.12400@ece.wpi.edu>

Here is a bash script I developed from the "kernel recipe".  It can save
allot of time, from sitting around waiting for a make to finish just to
type another command and wait again, to preventing another mistyped
command from messing things up.

Motivation:
I produced several kernels that worked with this, but they had their
issues.  That, and there did not appear to be any nice/friendly way to
install all those Debian packages to make a usable system.  I've decided
that these 10 C110 machines will just have to delapidate until a real
distribution gets put together.  Until then, I figure someone else can use
the script I worked on to maybe help them out in their endeavors.

Semi-technical info:
The beginning of the script intentionally destroys the $SOURCE, $BUILD,
and $DEST directories.  If not destroyed, I sometimes would have the build
process fail on me, but starting from scratch worked for me.  Maybe it was
coincidence, play with it and find out for yourself.  Happy hacking.

 -- Charles Wilcox

===========================================================================

#!/bin/bash

##  Copyright (C) 2001, Charles L. Wilcox <willo@wpi.edu>

#set some system variables
MACH=i386-linux
SOURCE=$HOME/source
BUILD=$HOME/build
DEST=$HOME/opt/puffin
PATH=$PATH:$DEST/bin
CVSROOT=":pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc"

#clean up and initialize directory structures
rm -rf $SOURCE
rm -rf $BUILD
rm -rf $DEST
mkdir -p $SOURCE
mkdir -p $BUILD

#login to the CVS server and get the goods
cvs -d $CVSROOT login
cd $SOURCE
cvs -z9 -d $CVSROOT checkout binutils gcc linux glibc palo || exit

#configure and build binutils
mkdir -p $BUILD/binutils
cd $BUILD/binutils
$SOURCE/binutils/configure --host=$MACH --prefix=$DEST --target=hppa-linux \
--enable-targets=hppa64-linux --disable-nls || exit
make || exit
make install || exit
cd $HOME

#configure and build gcc -- Part 1
cd $SOURCE/gcc
$SOURCE/gcc/contrib/gcc_update --touch
mkdir -p $BUILD/gcc
cd $BUILD/gcc
$SOURCE/gcc/configure --host=$MACH --prefix=$DEST --target=hppa-linux \
--enable-shared --disable-nls || exit
rm -rf zlib hppa-linux
make LANGUAGES=c || exit
make LANGUAGES=c install || exit
cd $HOME

#Unpack the kernel and make the header files glibc needs.
cd $SOURCE/linux
make oldconfig || exit
#make menuconfig
make dep || exit
cd $HOME

#configure and build glibc
mkdir -p $BUILD/glibc
cd $BUILD/glibc
$SOURCE/glibc/configure --host=hppa-linux --build=$MACH \
--prefix=$DEST/hppa-linux --with-headers=$SOURCE/linux/include \
--disable-profile --without-cvs --enable-add-ons || exit
make || exit
make install || exit
cd $HOME
ln -sf $SOURCE/linux/include/linux $DEST/hppa-linux/include
ln -sf $SOURCE/linux/include/asm $DEST/hppa-linux/include

#configure and build the rest of gcc
cd $BUILD/gcc
$SOURCE/gcc/configure --host=$MACH --prefix=$DEST --target=hppa-linux \
--enable-shared --disable-nls || exit
make || exit
make install || exit
cd $HOME

#build the kernel
cd $SOURCE/linux
##pico ../palo/Makefile
make palo || exit
cd $HOME

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From - Thu Nov 08 21:16:57 2018
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From: Robert Liesenfeld <xunil96@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Init not found on 735/125?
Date: Wed, 21 Mar 2001 17:19:55 -0800 (PST)
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Xref: news.gmane.org gmane.linux.ports.parisc:10564

I'm much closer to being able to install palinux on my 735/125...at the moment, the main problem
I'm having is this:

VFS: Mounted root (nfs filesystem) readonly.
Kernel panic: No init found.  Try passing init= option to kernel.

The NFS root fs is on my boot server, in /tftpboot/192.168.2.18.  The kernel successfully gets its
address (.2.18), and appears to mount the directory just fine...any ideas why it can't find
/sbin/init?

I've even tried passing init=/sbin/init on the kernel commandline (using palo/mklifimage).

-R


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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New toolchain debs and ftp reorg
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To: parisc-linux@parisc-linux.org, debian-hppa@lists.debian.org
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Xref: news.gmane.org gmane.linux.ports.parisc:10565

Hi parisc-linux'ers,

Quite a bit has changed with the toolchain in the last few weeks. I seem to be 
building new binutils/gcc/glibc packages almost every day. Rather than 
continually swap the debs out of the normal directory on the ftp site I've 
started putting the toolchain in it's own directory. As of today we seem to 
have a fairly stable(knock on wood) set of debs, available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/newcompilers-20010321/

I encourage everyone to grab a new toolchain. In particular people with PCXT 
systems(715/old,725/735/755,others) will want to grab the new libc6 packages 
which enable these systems to start working.

The new gcc debs are based on the gcc-3.0 experimental debian packages and are 
designed to co-exist with other versions of gcc on the system. This has a 
couple implications for us,

- The packages do not conflict with the old gcc packages
   You will need to dpkg -r all older gcc related packages
- some binaries install with a -3.0 prefix
   At least you will need to,
     cd /usr/bin
     mv cpp cpp.old;ln -s cpp-3.0 cpp
     mv g++ g++.old;ln -s g++-3.0 g++
     mv g77 g77.old;ln -s g77-3.0 g77
     mv gcc gcc.old;ln -s gcc-3.0 gcc

There is a gcc-defaults package that fixes these and I will try and get that 
working on hppa soon. When the need arises to do new compilers they will get a 
new directory.

With all the changes in the toolchain recently there are a couple that we 
really want(but not *need*) to recompile all packages for. So the most current 
versions of everything we've built up to this point are available in,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/debs-old/

The latest versions of everything from here on out will be available in,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/debs/

until we change it to something else :) Most of the debs in deb-old/ still 
work but as things get rebuilt and put in debs/ I will move them to the 
debs-old/old subdirectory.

All these directories are not yet apt-get'able. I may set that up if I get 
time. Also none of these debs are in the official debian tree yet. I suspect 
uploads will start once the build daemon is up and running.

Hopefully this makes sense. Please let me know if you have questions/problems.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






From - Thu Nov 08 21:16:57 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] Init not found on 735/125?
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             <20010322011955.17416.qmail@web5503.mail.yahoo.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:10566

Robert Liesenfeld writes...

> I'm much closer to being able to install palinux on my 735/125...at the momen
> t, the main problem
> I'm having is this:
[snip]

You could try using sash as init and see if you get further. I think this is 
the same problem as Richard mentioned in,

http://lists.parisc-linux.org/pipermail/parisc-linux/2001-March/012025.html

It's solved by a new glibc that's 16 byte aligned. See the message I just sent 
out about where to get the new glibc debs from.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: "Randolph Chung" <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] new g++ debs and oddities...
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So I've been playing with taggart's new g++ debs. definitely work a lot
better than the old ones, but still seeing some weird behavior:

1. i'm compiling apt, and got a problem with undefined symbols for
things like Hashes::Add(). Now, Hashes::Add is an inline method defined
in hashes.h .... moving that to a non-inlined method in the .cc resolves
the undefined symbol problem... seems like a compiler bug?

I'm compiling with -g -O0 -DHAVE_CONFIG_H -D_REENTRANT -fno-rtti -fpermissive

2. I'm getting a lot of warnings like this that weren't there with 2.97.
Not sure what the deal is yet:

/home/randolph/cvs/apt/build/include/apt-pkg/configuration.h: In member
   function `int Configuration::FindI(std::basic_string<char,
   std::char_traits<char>, std::allocator<char> >, bool) const':
   /home/randolph/cvs/apt/build/include/apt-pkg/configuration.h:75: warning: choosing 
   `int Configuration::FindI(const char*, int) const' over `int
   Configuration::FindI(std::basic_string<char, std::char_traits<char>, 
   std::allocator<char> >, bool) const'
/home/randolph/cvs/apt/build/include/apt-pkg/configuration.h:75: warning:
   because worst conversion for the former is better than worst conversion for
   the latter

Ideas?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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Subject: Re: [parisc-linux] The new FS of ESIEE Team is ready
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	=?iso-8859-1?Q?SOETE_Jo=EBl?= <JSO@EUROPAY.COM>,
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To: Thomas Marteau <marteaut@esiee.fr>
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On Tue, Mar 20, 2001 at 08:08:15PM +0100, Thomas Marteau wrote:
> Hi all,
> 
> 	The new FS is ready (~61MB). No "more" bugged with the good TERM parameter and
> no password :)
> It is a specially designed for 712 owners but it is a sane fs, we hope.
> 
> Please, go to our DL page: http://mkhppa1.esiee.fr/en/download.html

Hi Thomas.  I tried your package on a J7k here.  You've set /dev/console
to be a symlink to tty0.  Please don't do this, the kernel is supposed to
be able to handle /dev/console by itself, and select either STI console
or serial console as appropriate.

-- 
Revolutions do not require corporate support.




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: [parisc-linux] Re: new g++ debs and oddities...
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On Wed, 21 Mar 2001, Randolph Chung wrote:

> Ideas?

None, sorry.  I don't speak c++, at least not intelligibly.





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Subject: [parisc-linux] Keyboard cleanup
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we're getting a big pile of warnings:

hp_keyb.c:282: warning: (near initialization for `high_keys')

and it seems to be because the array we're initialising is of size 0
(128 - SC_LIM).  the following patch seems to DTRT, but i would appreciate
someone who has a (non-HIL) keyboard testing it and confirming it works.

Index: drivers/char/hp_keyb.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/char/hp_keyb.c,v
retrieving revision 1.3
diff -u -p -r1.3 hp_keyb.c
--- hp_keyb.c	2000/11/16 20:37:43	1.3
+++ hp_keyb.c	2001/03/22 05:10:35
@@ -246,7 +246,7 @@ unsigned char hp_ps2kbd_sysrq_xlate[128]
  * they needed not before. It does not matter that there are duplicates, as
  * long as no duplication occurs for any single keyboard.
  */
-#define SC_LIM 128
+#define SC_LIM 59
 
 #define FOCUS_PF1 85           /* actual code! */
 #define FOCUS_PF2 89




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Subject: Re: [parisc-linux] new g++ debs and oddities...
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In reference to a message from Randolph Chung, dated Mar 21:
> So I've been playing with taggart's new g++ debs. definitely work a lot
> better than the old ones, but still seeing some weird behavior:
> 
> 1. i'm compiling apt, and got a problem with undefined symbols for
> things like Hashes::Add(). Now, Hashes::Add is an inline method defined
> in hashes.h .... moving that to a non-inlined method in the .cc resolves
> the undefined symbol problem... seems like a compiler bug?
> 
> I'm compiling with -g -O0 -DHAVE_CONFIG_H -D_REENTRANT -fno-rtti -fpermissive

compiling with -O1 or -O2 fixes this....

> 2. I'm getting a lot of warnings like this that weren't there with 2.97.
> Not sure what the deal is yet:
> 
> /home/randolph/cvs/apt/build/include/apt-pkg/configuration.h: In member
>    function `int Configuration::FindI(std::basic_string<char,
>    std::char_traits<char>, std::allocator<char> >, bool) const':
>    /home/randolph/cvs/apt/build/include/apt-pkg/configuration.h:75: warning: choosing 
>    `int Configuration::FindI(const char*, int) const' over `int
>    Configuration::FindI(std::basic_string<char, std::char_traits<char>, 
>    std::allocator<char> >, bool) const'
> /home/randolph/cvs/apt/build/include/apt-pkg/configuration.h:75: warning:
>    because worst conversion for the former is better than worst conversion for
>    the latter

compiling with -O1 or -O2 eliminates these warnings as well... 

after lots of changes i got apt to compile with the new compilers,
however, the binaries segfault immediately on startup. i'm not sure
what's happening yet. they are dying in _start-0x??? (when i matched IAOQ
against objdump output).... looks like some kind of jump table?

000025d0 <_start-0x360>:
    25d0:       2b 60 00 00     addil 0,dp,%r1
    25d4:       48 35 0f 00     ldw 780(sr0,r1),r21
    25d8:       ea a0 c0 00     bv r0(r21)
    [...]
    288c:       48 33 0b a8     ldw 5d4(sr0,r1),r19
    2890:       2b 60 00 00     addil 0,dp,%r1
    2894:       48 35 0e 90     ldw 748(sr0,r1),r21       <--- segfaulting here
    2898:       ea a0 c0 00     bv r0(r21)

other C++ apps seem to work fine -- i've tried a simple "hello world" and the
more complex bonnie++ so far... i wonder if it matters that apt links in
c++ libraries of its own? of course, apt also uses a lot more c++
features like templates and such.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Alan Modra <alan@linuxcare.com.au>
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On Wed, 21 Mar 2001, Randolph Chung wrote:

> against objdump output).... looks like some kind of jump table?

Yeah, it is.  long branch, plt call stubs.

> 000025d0 <_start-0x360>:
>     25d0:       2b 60 00 00     addil 0,dp,%r1
>     25d4:       48 35 0f 00     ldw 780(sr0,r1),r21
>     25d8:       ea a0 c0 00     bv r0(r21)
>     [...]
>     288c:       48 33 0b a8     ldw 5d4(sr0,r1),r19
>     2890:       2b 60 00 00     addil 0,dp,%r1
>     2894:       48 35 0e 90     ldw 748(sr0,r1),r21       <--- segfaulting here
>     2898:       ea a0 c0 00     bv r0(r21)

Did you install a new glibc too?  This looks very much like a ld.so
without the hack I added recently.

Alan
-- 
Linuxcare





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Subject: [parisc-linux] Re: [parisc-linux-cvs] [PATCH] PDC Wrappers for 32-bit firmware using 64-bit kernels
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On Wed, Mar 21, 2001 at 11:46:22PM -0700, Ryan Bradetich wrote:
> Index: arch/parisc/config.in
> ===================================================================
> RCS file: /home/cvs/parisc/linux/arch/parisc/config.in,v
> retrieving revision 1.33
> diff -u -p -r1.33 config.in
> --- config.in	2001/03/02 01:41:03	1.33
> +++ config.in	2001/03/22 06:30:14
> @@ -33,6 +33,9 @@ choice 'Processor family' \
>  if [ "$CONFIG_PA8X00" = "y" ] ; then
>     define_bool CONFIG_PA20 y
>     bool '64-bit kernel' CONFIG_PARISC64 n
> +   if [ "$CONFIG_PARISC64" = "y" ] ; then
> +      bool '32-bit PDC' CONFIG_PDC_NARROW n
> +   fi
>  else
>     define_bool CONFIG_PA11 y
>  fi

I object because this patch adds a new CONFIG_ option without an explanation
for it!  (Pot.  Kettle.  Black.)

What happened to all the people who were dying to help with the port
but weren't confident in their programming abilities?  Did we drive them
all away?

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] Init not found on 735/125?
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On Wed, Mar 21, 2001 at 08:06:51PM -0700, Matt Taggart wrote:
> 
> Robert Liesenfeld writes...
> 
> > I'm much closer to being able to install palinux on my 735/125...at the momen
> > t, the main problem
> > I'm having is this:
> [snip]
> 
> You could try using sash as init and see if you get further. I think this is 
> the same problem as Richard mentioned in,
> 
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-March/012025.html
> 
> It's solved by a new glibc that's 16 byte aligned. See the message I just sent 
> out about where to get the new glibc debs from.

No, different problem I think.  My system found init, but init then hung.
Robert is seeing:

> Kernel panic: No init found.  Try passing init= option to kernel.

Maybe his 735/125 is mounting the wrong dir, maybe his sbin/init doesn't
have execute access.  I'd check I could nfs mount that dir from some
other machine, and see sbin/init ok.  Using init=/bin/sash is a good
idea anyway, except I don't think sash is on the .iso, so you need
to build it or ask nicely ;)

Richard





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From: Christoph Plattner <christoph.plattner@alcatel.at>
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Subject: [parisc-linux] Problem with FS of ESIEE on 720 !
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Hello PA-RISCers !

I have tried the current and the last ESIEE file system,
but I have problems with both. I used my own kernel,
running with the palinux-0.5, but the ESIEE always hangs.
If I do not change the /dev/console, I get the warning...
(of course, I have not compiled in the STI). So tried
to set the `mknod console c 5 1' and I also tried the
"hack" doing a link to `ttyS0'. In both cases `init'
gives no welcome message (version, etc...) and the machine
hangs !

Now I will instrument the kernel with `printk's to see,
if he can start something,.....

What's the topic with the TERM variable ??
Have I set it to a special value ???
Can that be the reason ???

Cheers
	Christoph P.


-----------------------------------------------------------------
private:        christoph.plattner@dot.at
company:        christoph.plattner@alcatel.at




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From: marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] Problem with FS of ESIEE on 720 !
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Hi Christoph and PA-RISCers !                                         
                                                                      
>I have tried the current and the last ESIEE file system,             
>but I have problems with both. I used my own kernel,                 
The kernels you will find are designed for 712 but it seems to work   
many others boxes!                                                    
vmlinux.mou is a kernel that integrate the low level mouse driver!    
(you can check via /proc/interrupts)                                  
                                                                      
>running with the palinux-0.5, but the ESIEE always hangs.            
>If I do not change the /dev/console, I get the warning...            
>(of course, I have not compiled in the STI). So tried                
>to set the `mknod console c 5 1' and I also tried the                
>"hack" doing a link to `ttyS0'. In both cases `init'                 
I read what Matthew wrote. We goona look at it in order to be         
automatic                                                             
                                                                      
>gives no welcome message (version, etc...) and the machine           
>hangs !                                                              
Our inittab file is specific for dual screen (if you use STI console  
and Serial terminal!)                                                 
I do not know how it reacts if the kernel expect a console with the   
serail port :( Any idea?                                              
                                                                      
Also you can refer to this mail:                                      
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-March/011997
.html                                                                 
                                                                      
>Now I will instrument the kernel with `printk's to see,              
>if he can start something,.....                                      
You can but once init is launched the dmesg is less usefull.          
                                                                      
>What's the topic with the TERM variable ??                           
TERM=LINUX is not operational                                         
TERM=vt100 or pcansi are working!                                     
                                                                      
>Have I set it to a special value ???                                 
>Can that be the reason ???                                           
Don't think so                                                        
                                                                      
Bye, Thomas                                                           




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From: Christoph Plattner <christoph.plattner@alcatel.at>
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Subject: Re: [parisc-linux] Problem with FS of ESIEE on 720 !
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Topic /dev/console :

You have to do nothing for "automatic" !!
The kernel manage this. The device `/dev/console' has
the major=5 minor=1. This device driver registered to this
major uses the system console. The system console driver
itself is internal a wrapper to the configured device
driver, defined via "console=ttyS0" the kernel command line
parameter. In this case (ttyS0) the driver on major=5
(/dev/console) intern calls the console i/o functions
(an own structure in the kernel) which are pointing to the
serial driver. In an other case, the pointer points to a
STI console interface. Also printk uses the pointer to
the write operation of the defined console !!

This console stuff was introduced in kernel 2.2
(2.1.xxx).

So the file system only should have the entry

crw-rw-rw-  root  root  5  1  xxxx xxxx /dev/console

Cheers
	Christop P.


marteau wrote:
> 
> Hi Christoph and PA-RISCers !
> 
> >I have tried the current and the last ESIEE file system,
> >but I have problems with both. I used my own kernel,
> The kernels you will find are designed for 712 but it seems to work
> many others boxes!
> vmlinux.mou is a kernel that integrate the low level mouse driver!
> (you can check via /proc/interrupts)
> 
> >running with the palinux-0.5, but the ESIEE always hangs.
> >If I do not change the /dev/console, I get the warning...
> >(of course, I have not compiled in the STI). So tried
> >to set the `mknod console c 5 1' and I also tried the
> >"hack" doing a link to `ttyS0'. In both cases `init'
> I read what Matthew wrote. We goona look at it in order to be
> automatic
> 
> >gives no welcome message (version, etc...) and the machine
> >hangs !
> Our inittab file is specific for dual screen (if you use STI console
> and Serial terminal!)
> I do not know how it reacts if the kernel expect a console with the
> serail port :( Any idea?
> 
> Also you can refer to this mail:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-March/011997
> .html
> 
> >Now I will instrument the kernel with `printk's to see,
> >if he can start something,.....
> You can but once init is launched the dmesg is less usefull.
> 
> >What's the topic with the TERM variable ??
> TERM=LINUX is not operational
> TERM=vt100 or pcansi are working!
> 
> >Have I set it to a special value ???
> >Can that be the reason ???
> Don't think so
> 
> Bye, Thomas
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955




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From: Nicolas THOMAS <thomas@ispserv.grenoble.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Interoperability
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Hi PA-Riscers,

Does anyone of you have references/URL/opinion.... on interoperabilty purpose ?

The systems I would like to be able to interoperate are :

- Linux x86
- Linux PA-risc 32bits
- Linux PA-risc 64bits
- HP-UX 11 64bits


I already know the STK: http://devresource.hp.com/STK/

But it does not cover all the possibilities of interop..

I'm just looking for pointers & references ...

Thanks in advance for your help.

Nicolas
HP




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From: Markus Werle <markus@lufmech.rwth-aachen.de>
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Subject: [parisc-linux] configure --host=xx revisited
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Hi !

during the last months I stumbled through the naming
conventions of "host" used in configure scripts of
gcc/binutils and other gnu packages.

I am looking for information about this naming convention.
Some people got confused configuring gcc for hpux, because
e.g. hppa-2.0w-etc. does not mean a 64-bit version.

In order to obtain at least hpux/linux-specific clarity:
Can someone provide a matrix / a mapping between
hp CPUs (or models), operating systems, number of bits and
the gcc naming conventions?

What I want are answers of the form;
If I want to build gcc on a machine YYY running OS XXX,
I have the possibilty to configure for hppa-ZZZZ (32bit)
or hppa-AAAA (64bit).

This leads to a matrix that contains for every combination of
vendor, machine/processor-type, OS and  # of bits
a string XXX for the  --host=XXX command line option
- or a n/a.

Thanks for any help,


Markus







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From: Paul Bame <bame@fc.hp.com>
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Subject: [parisc-linux] Fortran: undefined reference to `__builtin_cos'
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Not that it's critical, but our Fortran compiler looks like it almost
works but not quite.  Since this is probably something simple I thought
I'd post this build log which results from the compilers in
http://puffin.external.hp.com/pub/parisc/binaries/debian/newcompilers-20010321/

g77 -v -O2  -c -o neca.o neca.f
g77 version 3.0 20010315 (prerelease) (Fortran Frontend version 0.5.26 20010315 (experimental))
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads=posix --enable-long-long --enable-nls --without-x --without-included-gettext --with-cpp-install-dir=bin --enable-objc-gc hppa-linux : (reconfigured) 
gcc version 3.0 20010315 (prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.0/f771 neca.f -quiet -dumpbase neca.f -O2 -version -o /tmp/ccDja2vd.s
GNU F77 version 3.0 20010315 (prerelease) (hppa-linux)
	compiled by GNU C version 3.0 20010315 (prerelease).
 as -V -o neca.o /tmp/ccDja2vd.s
GNU assembler version 2.10.91 (hppa2.0-unknown-linux-gnu) using BFD version 2.10.91
g77 -v -O2  -c -o necc.o necc.f
g77 version 3.0 20010315 (prerelease) (Fortran Frontend version 0.5.26 20010315 (experimental))
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads=posix --enable-long-long --enable-nls --without-x --without-included-gettext --with-cpp-install-dir=bin --enable-objc-gc hppa-linux : (reconfigured) 
gcc version 3.0 20010315 (prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.0/f771 necc.f -quiet -dumpbase necc.f -O2 -version -o /tmp/cc2tVv8P.s
GNU F77 version 3.0 20010315 (prerelease) (hppa-linux)
	compiled by GNU C version 3.0 20010315 (prerelease).
necc.f: In subroutine `conect':
necc.f:626: warning:
        1OR PATCHES EXCEEDS LIMIT OF,I5)                                   
                                     ^
Missing comma in FORMAT statement at (^)
 as -V -o necc.o /tmp/cc2tVv8P.s
GNU assembler version 2.10.91 (hppa2.0-unknown-linux-gnu) using BFD version 2.10.91
g77 -v -O2  -c -o necd.o necd.f
g77 version 3.0 20010315 (prerelease) (Fortran Frontend version 0.5.26 20010315 (experimental))
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads=posix --enable-long-long --enable-nls --without-x --without-included-gettext --with-cpp-install-dir=bin --enable-objc-gc hppa-linux : (reconfigured) 
gcc version 3.0 20010315 (prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.0/f771 necd.f -quiet -dumpbase necd.f -O2 -version -o /tmp/cckHRXbD.s
GNU F77 version 3.0 20010315 (prerelease) (hppa-linux)
	compiled by GNU C version 3.0 20010315 (prerelease).
 as -V -o necd.o /tmp/cckHRXbD.s
GNU assembler version 2.10.91 (hppa2.0-unknown-linux-gnu) using BFD version 2.10.91
g77 -v -O2  -c -o nece.o nece.f
g77 version 3.0 20010315 (prerelease) (Fortran Frontend version 0.5.26 20010315 (experimental))
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads=posix --enable-long-long --enable-nls --without-x --without-included-gettext --with-cpp-install-dir=bin --enable-objc-gc hppa-linux : (reconfigured) 
gcc version 3.0 20010315 (prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.0/f771 nece.f -quiet -dumpbase nece.f -O2 -version -o /tmp/cckT7N4L.s
GNU F77 version 3.0 20010315 (prerelease) (hppa-linux)
	compiled by GNU C version 3.0 20010315 (prerelease).
 as -V -o nece.o /tmp/cckT7N4L.s
GNU assembler version 2.10.91 (hppa2.0-unknown-linux-gnu) using BFD version 2.10.91
g77 -v -O2  -c -o necf.o necf.f
g77 version 3.0 20010315 (prerelease) (Fortran Frontend version 0.5.26 20010315 (experimental))
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads=posix --enable-long-long --enable-nls --without-x --without-included-gettext --with-cpp-install-dir=bin --enable-objc-gc hppa-linux : (reconfigured) 
gcc version 3.0 20010315 (prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.0/f771 necf.f -quiet -dumpbase necf.f -O2 -version -o /tmp/ccsbjUSA.s
GNU F77 version 3.0 20010315 (prerelease) (hppa-linux)
	compiled by GNU C version 3.0 20010315 (prerelease).
 as -V -o necf.o /tmp/ccsbjUSA.s
GNU assembler version 2.10.91 (hppa2.0-unknown-linux-gnu) using BFD version 2.10.91
g77 -v -O2  -c -o necg.o necg.f
g77 version 3.0 20010315 (prerelease) (Fortran Frontend version 0.5.26 20010315 (experimental))
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads=posix --enable-long-long --enable-nls --without-x --without-included-gettext --with-cpp-install-dir=bin --enable-objc-gc hppa-linux : (reconfigured) 
gcc version 3.0 20010315 (prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.0/f771 necg.f -quiet -dumpbase necg.f -O2 -version -o /tmp/ccIBiicz.s
GNU F77 version 3.0 20010315 (prerelease) (hppa-linux)
	compiled by GNU C version 3.0 20010315 (prerelease).
 as -V -o necg.o /tmp/ccIBiicz.s
GNU assembler version 2.10.91 (hppa2.0-unknown-linux-gnu) using BFD version 2.10.91
g77 -v -O2  -c -o nech.o nech.f
g77 version 3.0 20010315 (prerelease) (Fortran Frontend version 0.5.26 20010315 (experimental))
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads=posix --enable-long-long --enable-nls --without-x --without-included-gettext --with-cpp-install-dir=bin --enable-objc-gc hppa-linux : (reconfigured) 
gcc version 3.0 20010315 (prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.0/f771 nech.f -quiet -dumpbase nech.f -O2 -version -o /tmp/cctgovxG.s
GNU F77 version 3.0 20010315 (prerelease) (hppa-linux)
	compiled by GNU C version 3.0 20010315 (prerelease).
nech.f: In subroutine `load':
nech.f:548: warning:
    19   CALL PRNT (LDTAGS,LDTAGF(ISTEP),LDTAGT(ISTEP),ZLR(ISTEP),ZLI(ISTEP
              1
nech.f:554: (continued):
    21   CALL PRNT (LDTAGS,LDTAGF(ISTEP),LDTAGT(ISTEP),ZLR(ISTEP),ZLI(ISTEP
              2
Too few arguments for `prnt' at (2) versus invocation at (1) [info -f g77 M GLOBALS]
 as -V -o nech.o /tmp/cctgovxG.s
GNU assembler version 2.10.91 (hppa2.0-unknown-linux-gnu) using BFD version 2.10.91
g77 -v -O2  -c -o necl.o necl.f
g77 version 3.0 20010315 (prerelease) (Fortran Frontend version 0.5.26 20010315 (experimental))
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads=posix --enable-long-long --enable-nls --without-x --without-included-gettext --with-cpp-install-dir=bin --enable-objc-gc hppa-linux : (reconfigured) 
gcc version 3.0 20010315 (prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.0/f771 necl.f -quiet -dumpbase necl.f -O2 -version -o /tmp/ccHyPdIP.s
GNU F77 version 3.0 20010315 (prerelease) (hppa-linux)
	compiled by GNU C version 3.0 20010315 (prerelease).
 as -V -o necl.o /tmp/ccHyPdIP.s
GNU assembler version 2.10.91 (hppa2.0-unknown-linux-gnu) using BFD version 2.10.91
g77 -v -O2  -c -o necn.o necn.f
g77 version 3.0 20010315 (prerelease) (Fortran Frontend version 0.5.26 20010315 (experimental))
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads=posix --enable-long-long --enable-nls --without-x --without-included-gettext --with-cpp-install-dir=bin --enable-objc-gc hppa-linux : (reconfigured) 
gcc version 3.0 20010315 (prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.0/f771 necn.f -quiet -dumpbase necn.f -O2 -version -o /tmp/ccqxtT4S.s
GNU F77 version 3.0 20010315 (prerelease) (hppa-linux)
	compiled by GNU C version 3.0 20010315 (prerelease).
 as -V -o necn.o /tmp/ccqxtT4S.s
GNU assembler version 2.10.91 (hppa2.0-unknown-linux-gnu) using BFD version 2.10.91
g77 -v -O2  -c -o necp.o necp.f
g77 version 3.0 20010315 (prerelease) (Fortran Frontend version 0.5.26 20010315 (experimental))
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads=posix --enable-long-long --enable-nls --without-x --without-included-gettext --with-cpp-install-dir=bin --enable-objc-gc hppa-linux : (reconfigured) 
gcc version 3.0 20010315 (prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.0/f771 necp.f -quiet -dumpbase necp.f -O2 -version -o /tmp/ccNXJhfH.s
GNU F77 version 3.0 20010315 (prerelease) (hppa-linux)
	compiled by GNU C version 3.0 20010315 (prerelease).
necp.f: In subroutine `rdpat':
necp.f:279: warning:
         COMMON /SAVE/ IP(600),KCOM,COM(19,5),EPSR,SIG,SCRWLT,SCRWRT,FMHZ  
                 ^
Initial padding for common block `save' is 4 bytes at (^) -- consider reordering members, largest-type-size first
 as -V -o necp.o /tmp/ccNXJhfH.s
GNU assembler version 2.10.91 (hppa2.0-unknown-linux-gnu) using BFD version 2.10.91
g77 -v -O2  -c -o necr.o necr.f
g77 version 3.0 20010315 (prerelease) (Fortran Frontend version 0.5.26 20010315 (experimental))
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads=posix --enable-long-long --enable-nls --without-x --without-included-gettext --with-cpp-install-dir=bin --enable-objc-gc hppa-linux : (reconfigured) 
gcc version 3.0 20010315 (prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.0/f771 necr.f -quiet -dumpbase necr.f -O2 -version -o /tmp/cc9Dqxkp.s
GNU F77 version 3.0 20010315 (prerelease) (hppa-linux)
	compiled by GNU C version 3.0 20010315 (prerelease).
 as -V -o necr.o /tmp/cc9Dqxkp.s
GNU assembler version 2.10.91 (hppa2.0-unknown-linux-gnu) using BFD version 2.10.91
g77 -v -O2  -c -o necs.o necs.f
g77 version 3.0 20010315 (prerelease) (Fortran Frontend version 0.5.26 20010315 (experimental))
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads=posix --enable-long-long --enable-nls --without-x --without-included-gettext --with-cpp-install-dir=bin --enable-objc-gc hppa-linux : (reconfigured) 
gcc version 3.0 20010315 (prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.0/f771 necs.f -quiet -dumpbase necs.f -O2 -version -o /tmp/ccCfDuco.s
GNU F77 version 3.0 20010315 (prerelease) (hppa-linux)
	compiled by GNU C version 3.0 20010315 (prerelease).
 as -V -o necs.o /tmp/ccCfDuco.s
GNU assembler version 2.10.91 (hppa2.0-unknown-linux-gnu) using BFD version 2.10.91
cc    -c -o errsns.o errsns.c
g77 neca.o necc.o necd.o nece.o necf.o necg.o nech.o necl.o necn.o necp.o necr.o necs.o errsns.o -v -O2 -o nec
g77 version 3.0 20010315 (prerelease) (Fortran Frontend version 0.5.26 20010315 (experimental))
Driving: g77 neca.o necc.o necd.o nece.o necf.o necg.o nech.o necl.o necn.o necp.o necr.o necs.o errsns.o -v -O2 -o nec -lg2c -lm
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads=posix --enable-long-long --enable-nls --without-x --without-included-gettext --with-cpp-install-dir=bin --enable-objc-gc hppa-linux : (reconfigured) 
gcc version 3.0 20010315 (prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.0/collect2 -dynamic-linker /lib/ld.so.1 -o nec /usr/lib/gcc-lib/hppa-linux/3.0/../../../crt1.o /usr/lib/gcc-lib/hppa-linux/3.0/../../../crti.o /usr/lib/gcc-lib/hppa-linux/3.0/crtbegin.o -L/usr/lib/gcc-lib/hppa-linux/3.0 -L/usr/lib/gcc-lib/hppa-linux/3.0/../../.. neca.o necc.o necd.o nece.o necf.o necg.o nech.o necl.o necn.o necp.o necr.o necs.o errsns.o -lg2c -lm -lgcc -lc -lgcc /usr/lib/gcc-lib/hppa-linux/3.0/crtend.o /usr/lib/gcc-lib/hppa-linux/3.0/../../../crtn.o
neca.o: In function `arc_':
neca.o(.text+0xf4): undefined reference to `__builtin_cos'
/usr/local/bin/ld: neca.o(.text+0xf4): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: neca.o(.text+0xf4): cannot handle R_PARISC_PCREL17F for __builtin_cos
neca.o(.text+0x108): undefined reference to `__builtin_sin'
/usr/local/bin/ld: neca.o(.text+0x108): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: neca.o(.text+0x108): cannot handle R_PARISC_PCREL17F for __builtin_sin
neca.o(.text+0x124): undefined reference to `__builtin_cos'
/usr/local/bin/ld: neca.o(.text+0x124): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: neca.o(.text+0x124): cannot handle R_PARISC_PCREL17F for __builtin_cos
neca.o(.text+0x130): undefined reference to `__builtin_sin'
/usr/local/bin/ld: neca.o(.text+0x130): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: neca.o(.text+0x130): cannot handle R_PARISC_PCREL17F for __builtin_sin
neca.o: In function `cabc_':
neca.o(.text+0x870): undefined reference to `__builtin_cos'
/usr/local/bin/ld: neca.o(.text+0x870): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: neca.o(.text+0x870): cannot handle R_PARISC_PCREL17F for __builtin_cos
neca.o(.text+0x884): undefined reference to `__builtin_sin'
/usr/local/bin/ld: neca.o(.text+0x884): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: neca.o(.text+0x884): cannot handle R_PARISC_PCREL17F for __builtin_sin
necc.o: In function `cmsw_':
necc.o(.text+0x4f8): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necc.o(.text+0x4f8): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necc.o(.text+0x4f8): cannot handle R_PARISC_PCREL17F for __builtin_sin
necc.o(.text+0x504): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necc.o(.text+0x504): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necc.o(.text+0x504): cannot handle R_PARISC_PCREL17F for __builtin_cos
necc.o(.text+0xc78): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necc.o(.text+0xc78): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necc.o(.text+0xc78): cannot handle R_PARISC_PCREL17F for __builtin_sin
necc.o(.text+0xc84): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necc.o(.text+0xc84): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necc.o(.text+0xc84): cannot handle R_PARISC_PCREL17F for __builtin_cos
necd.o: In function `efld_':
necd.o(.text+0x20a4): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necd.o(.text+0x20a4): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necd.o(.text+0x20a4): cannot handle R_PARISC_PCREL17F for __builtin_cos
necd.o(.text+0x20bc): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necd.o(.text+0x20bc): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necd.o(.text+0x20bc): cannot handle R_PARISC_PCREL17F for __builtin_sin
necd.o(.text+0x2270): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necd.o(.text+0x2270): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necd.o(.text+0x2270): cannot handle R_PARISC_PCREL17F for __builtin_sin
necd.o: In function `eksc_':
necd.o(.text+0x3930): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necd.o(.text+0x3930): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necd.o(.text+0x3930): cannot handle R_PARISC_PCREL17F for __builtin_sin
necd.o(.text+0x393c): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necd.o(.text+0x393c): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necd.o(.text+0x393c): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o: In function `ekscx_':
nece.o(.text+0x110): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0x110): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0x110): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0x11c): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0x11c): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0x11c): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o: In function `error_':
nece.o(.text+0xa38): undefined reference to `errsns_'
/usr/local/bin/ld: nece.o(.text+0xa38): cannot find stub entry 00000038_errsns_+0
/usr/local/bin/ld: nece.o(.text+0xa38): cannot handle R_PARISC_PCREL17F for errsns_
nece.o: In function `etmns_':
nece.o(.text+0xb48): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0xb48): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0xb48): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0xb68): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0xb68): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0xb68): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0xb84): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0xb84): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0xb84): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0xba0): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0xba0): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0xba0): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0xd40): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0xd40): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0xd40): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0xd4c): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0xd4c): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0xd4c): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0x1340): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0x1340): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0x1340): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0x134c): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0x134c): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0x134c): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0x136c): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0x136c): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0x136c): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0x1380): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0x1380): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0x1380): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0x139c): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0x139c): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0x139c): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0x13a8): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0x13a8): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0x13a8): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0x1664): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0x1664): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0x1664): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0x1670): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0x1670): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0x1670): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0x186c): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0x186c): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0x186c): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0x1878): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0x1878): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0x1878): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0x199c): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0x199c): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0x199c): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0x19a8): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0x19a8): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0x19a8): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0x1c28): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0x1c28): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0x1c28): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0x1c34): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0x1c34): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0x1c34): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0x1f10): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0x1f10): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0x1f10): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0x1f1c): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0x1f1c): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0x1f1c): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0x21c8): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0x21c8): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0x21c8): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0x21d4): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0x21d4): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0x21d4): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0x236c): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0x236c): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0x236c): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0x2378): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0x2378): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0x2378): cannot handle R_PARISC_PCREL17F for __builtin_sin
nece.o(.text+0x26a4): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nece.o(.text+0x26a4): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nece.o(.text+0x26a4): cannot handle R_PARISC_PCREL17F for __builtin_cos
nece.o(.text+0x26b0): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nece.o(.text+0x26b0): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nece.o(.text+0x26b0): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o: In function `L2':
necf.o(.text+0x2e4): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necf.o(.text+0x2e4): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necf.o(.text+0x2e4): cannot handle R_PARISC_PCREL17F for __builtin_cos
necf.o(.text+0x2f0): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x2f0): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x2f0): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o: In function `ffld_':
necf.o(.text+0xb48): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0xb48): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0xb48): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o(.text+0xb58): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necf.o(.text+0xb58): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necf.o(.text+0xb58): cannot handle R_PARISC_PCREL17F for __builtin_cos
necf.o(.text+0xb70): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necf.o(.text+0xb70): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necf.o(.text+0xb70): cannot handle R_PARISC_PCREL17F for __builtin_cos
necf.o(.text+0xb98): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0xb98): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0xb98): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o(.text+0x10b4): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x10b4): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x10b4): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o(.text+0x10e8): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x10e8): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x10e8): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o(.text+0x1118): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x1118): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x1118): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o(.text+0x11b0): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necf.o(.text+0x11b0): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necf.o(.text+0x11b0): cannot handle R_PARISC_PCREL17F for __builtin_cos
necf.o(.text+0x11bc): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x11bc): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x11bc): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o(.text+0x1e24): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necf.o(.text+0x1e24): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necf.o(.text+0x1e24): cannot handle R_PARISC_PCREL17F for __builtin_cos
necf.o(.text+0x1e30): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x1e30): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x1e30): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o: In function `fflds_':
necf.o(.text+0x227c): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necf.o(.text+0x227c): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necf.o(.text+0x227c): cannot handle R_PARISC_PCREL17F for __builtin_cos
necf.o(.text+0x228c): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x228c): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x228c): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o: In function `gf_':
necf.o(.text+0x2558): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x2558): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x2558): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o(.text+0x2578): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necf.o(.text+0x2578): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necf.o(.text+0x2578): cannot handle R_PARISC_PCREL17F for __builtin_cos
necf.o(.text+0x25c8): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necf.o(.text+0x25c8): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necf.o(.text+0x25c8): cannot handle R_PARISC_PCREL17F for __builtin_cos
necf.o: In function `gfld_':
necf.o(.text+0x3b9c): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x3b9c): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x3b9c): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o(.text+0x3bb4): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necf.o(.text+0x3bb4): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necf.o(.text+0x3bb4): cannot handle R_PARISC_PCREL17F for __builtin_cos
necf.o(.text+0x3e74): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x3e74): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x3e74): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o(.text+0x3ea8): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x3ea8): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x3ea8): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o(.text+0x3ed8): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x3ed8): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x3ed8): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o(.text+0x3f60): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necf.o(.text+0x3f60): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necf.o(.text+0x3f60): cannot handle R_PARISC_PCREL17F for __builtin_cos
necf.o(.text+0x3f6c): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x3f6c): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x3f6c): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o(.text+0x42c4): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necf.o(.text+0x42c4): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necf.o(.text+0x42c4): cannot handle R_PARISC_PCREL17F for __builtin_cos
necf.o(.text+0x42d0): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x42d0): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x42d0): cannot handle R_PARISC_PCREL17F for __builtin_sin
necf.o(.text+0x45b4): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necf.o(.text+0x45b4): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necf.o(.text+0x45b4): cannot handle R_PARISC_PCREL17F for __builtin_cos
necf.o(.text+0x45c0): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necf.o(.text+0x45c0): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necf.o(.text+0x45c0): cannot handle R_PARISC_PCREL17F for __builtin_sin
necg.o: In function `gh_':
necg.o(.text+0xf18): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necg.o(.text+0xf18): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necg.o(.text+0xf18): cannot handle R_PARISC_PCREL17F for __builtin_cos
necg.o(.text+0xf24): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necg.o(.text+0xf24): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necg.o(.text+0xf24): cannot handle R_PARISC_PCREL17F for __builtin_sin
necg.o: In function `gx_':
necg.o(.text+0x253c): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necg.o(.text+0x253c): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necg.o(.text+0x253c): cannot handle R_PARISC_PCREL17F for __builtin_cos
necg.o(.text+0x2548): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necg.o(.text+0x2548): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necg.o(.text+0x2548): cannot handle R_PARISC_PCREL17F for __builtin_sin
necg.o: In function `gxx_':
necg.o(.text+0x27c0): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necg.o(.text+0x27c0): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necg.o(.text+0x27c0): cannot handle R_PARISC_PCREL17F for __builtin_cos
necg.o(.text+0x27cc): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necg.o(.text+0x27cc): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necg.o(.text+0x27cc): cannot handle R_PARISC_PCREL17F for __builtin_sin
necg.o: In function `helix_':
necg.o(.text+0x2f20): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necg.o(.text+0x2f20): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necg.o(.text+0x2f20): cannot handle R_PARISC_PCREL17F for __builtin_cos
necg.o(.text+0x2f64): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necg.o(.text+0x2f64): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necg.o(.text+0x2f64): cannot handle R_PARISC_PCREL17F for __builtin_sin
necg.o(.text+0x2fac): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necg.o(.text+0x2fac): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necg.o(.text+0x2fac): cannot handle R_PARISC_PCREL17F for __builtin_cos
necg.o(.text+0x2ff4): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necg.o(.text+0x2ff4): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necg.o(.text+0x2ff4): cannot handle R_PARISC_PCREL17F for __builtin_sin
necg.o: In function `L412':
necg.o(.text+0x3290): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necg.o(.text+0x3290): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necg.o(.text+0x3290): cannot handle R_PARISC_PCREL17F for __builtin_cos
necg.o(.text+0x3300): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necg.o(.text+0x3300): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necg.o(.text+0x3300): cannot handle R_PARISC_PCREL17F for __builtin_cos
necg.o(.text+0x3324): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necg.o(.text+0x3324): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necg.o(.text+0x3324): cannot handle R_PARISC_PCREL17F for __builtin_sin
necg.o(.text+0x334c): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necg.o(.text+0x334c): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necg.o(.text+0x334c): cannot handle R_PARISC_PCREL17F for __builtin_cos
necg.o(.text+0x3378): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necg.o(.text+0x3378): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necg.o(.text+0x3378): cannot handle R_PARISC_PCREL17F for __builtin_sin
necg.o: In function `hintg_':
necg.o(.text+0x3c00): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necg.o(.text+0x3c00): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necg.o(.text+0x3c00): cannot handle R_PARISC_PCREL17F for __builtin_cos
necg.o(.text+0x3c0c): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necg.o(.text+0x3c0c): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necg.o(.text+0x3c0c): cannot handle R_PARISC_PCREL17F for __builtin_sin
nech.o: In function `hsflx_':
nech.o(.text+0x110): undefined reference to `__builtin_cos'
/usr/local/bin/ld: nech.o(.text+0x110): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: nech.o(.text+0x110): cannot handle R_PARISC_PCREL17F for __builtin_cos
nech.o(.text+0x11c): undefined reference to `__builtin_sin'
/usr/local/bin/ld: nech.o(.text+0x11c): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: nech.o(.text+0x11c): cannot handle R_PARISC_PCREL17F for __builtin_sin
necl.o: In function `move_':
necl.o(.text+0x518): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necl.o(.text+0x518): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necl.o(.text+0x518): cannot handle R_PARISC_PCREL17F for __builtin_sin
necl.o(.text+0x524): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necl.o(.text+0x524): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necl.o(.text+0x524): cannot handle R_PARISC_PCREL17F for __builtin_cos
necl.o(.text+0x530): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necl.o(.text+0x530): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necl.o(.text+0x530): cannot handle R_PARISC_PCREL17F for __builtin_sin
necl.o(.text+0x540): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necl.o(.text+0x540): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necl.o(.text+0x540): cannot handle R_PARISC_PCREL17F for __builtin_cos
necl.o(.text+0x564): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necl.o(.text+0x564): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necl.o(.text+0x564): cannot handle R_PARISC_PCREL17F for __builtin_sin
necl.o(.text+0x574): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necl.o(.text+0x574): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necl.o(.text+0x574): cannot handle R_PARISC_PCREL17F for __builtin_cos
necn.o: In function `L325':
necn.o(.text+0x1a54): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necn.o(.text+0x1a54): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necn.o(.text+0x1a54): cannot handle R_PARISC_PCREL17F for __builtin_sin
necn.o(.text+0x1a8c): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necn.o(.text+0x1a8c): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necn.o(.text+0x1a8c): cannot handle R_PARISC_PCREL17F for __builtin_cos
necn.o: In function `L440':
necn.o(.text+0x37b8): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necn.o(.text+0x37b8): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necn.o(.text+0x37b8): cannot handle R_PARISC_PCREL17F for __builtin_sin
necn.o(.text+0x37e0): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necn.o(.text+0x37e0): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necn.o(.text+0x37e0): cannot handle R_PARISC_PCREL17F for __builtin_cos
necn.o: In function `L444':
necn.o(.text+0x39b8): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necn.o(.text+0x39b8): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necn.o(.text+0x39b8): cannot handle R_PARISC_PCREL17F for __builtin_cos
necn.o(.text+0x39c4): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necn.o(.text+0x39c4): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necn.o(.text+0x39c4): cannot handle R_PARISC_PCREL17F for __builtin_sin
necn.o(.text+0x3a30): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necn.o(.text+0x3a30): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necn.o(.text+0x3a30): cannot handle R_PARISC_PCREL17F for __builtin_cos
necn.o(.text+0x3a3c): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necn.o(.text+0x3a3c): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necn.o(.text+0x3a3c): cannot handle R_PARISC_PCREL17F for __builtin_sin
necn.o: In function `__g77_masterfun_patch':
necn.o(.text+0x4930): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necn.o(.text+0x4930): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necn.o(.text+0x4930): cannot handle R_PARISC_PCREL17F for __builtin_cos
necn.o(.text+0x4944): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necn.o(.text+0x4944): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necn.o(.text+0x4944): cannot handle R_PARISC_PCREL17F for __builtin_cos
necn.o(.text+0x4954): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necn.o(.text+0x4954): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necn.o(.text+0x4954): cannot handle R_PARISC_PCREL17F for __builtin_sin
necn.o(.text+0x4964): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necn.o(.text+0x4964): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necn.o(.text+0x4964): cannot handle R_PARISC_PCREL17F for __builtin_sin
necp.o: In function `qdsrc_':
necp.o(.text+0xb0c): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necp.o(.text+0xb0c): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necp.o(.text+0xb0c): cannot handle R_PARISC_PCREL17F for __builtin_cos
necp.o(.text+0xb20): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necp.o(.text+0xb20): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necp.o(.text+0xb20): cannot handle R_PARISC_PCREL17F for __builtin_sin
necp.o: In function `L162':
necp.o(.text+0x20e8): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necp.o(.text+0x20e8): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necp.o(.text+0x20e8): cannot handle R_PARISC_PCREL17F for __builtin_cos
necp.o(.text+0x20fc): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necp.o(.text+0x20fc): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necp.o(.text+0x20fc): cannot handle R_PARISC_PCREL17F for __builtin_cos
necp.o: In function `L182':
necp.o(.text+0x2384): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necp.o(.text+0x2384): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necp.o(.text+0x2384): cannot handle R_PARISC_PCREL17F for __builtin_cos
necp.o(.text+0x2390): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necp.o(.text+0x2390): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necp.o(.text+0x2390): cannot handle R_PARISC_PCREL17F for __builtin_cos
necp.o: In function `L328':
necp.o(.text+0x2d40): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necp.o(.text+0x2d40): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necp.o(.text+0x2d40): cannot handle R_PARISC_PCREL17F for __builtin_cos
necp.o(.text+0x2d90): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necp.o(.text+0x2d90): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necp.o(.text+0x2d90): cannot handle R_PARISC_PCREL17F for __builtin_sin
necp.o(.text+0x2db8): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necp.o(.text+0x2db8): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necp.o(.text+0x2db8): cannot handle R_PARISC_PCREL17F for __builtin_cos
necr.o: In function `reflc_':
necr.o(.text+0xccc): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necr.o(.text+0xccc): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necr.o(.text+0xccc): cannot handle R_PARISC_PCREL17F for __builtin_cos
necr.o(.text+0xcd8): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necr.o(.text+0xcd8): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necr.o(.text+0xcd8): cannot handle R_PARISC_PCREL17F for __builtin_sin
necr.o: In function `sbf_':
necr.o(.text+0x1b80): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necr.o(.text+0x1b80): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necr.o(.text+0x1b80): cannot handle R_PARISC_PCREL17F for __builtin_sin
necr.o(.text+0x1b8c): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necr.o(.text+0x1b8c): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necr.o(.text+0x1b8c): cannot handle R_PARISC_PCREL17F for __builtin_cos
necr.o(.text+0x1d38): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necr.o(.text+0x1d38): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necr.o(.text+0x1d38): cannot handle R_PARISC_PCREL17F for __builtin_sin
necr.o(.text+0x1d44): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necr.o(.text+0x1d44): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necr.o(.text+0x1d44): cannot handle R_PARISC_PCREL17F for __builtin_cos
necr.o: In function `sflds_':
necr.o(.text+0x2428): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necr.o(.text+0x2428): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necr.o(.text+0x2428): cannot handle R_PARISC_PCREL17F for __builtin_cos
necr.o(.text+0x2434): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necr.o(.text+0x2434): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necr.o(.text+0x2434): cannot handle R_PARISC_PCREL17F for __builtin_sin
necr.o(.text+0x2954): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necr.o(.text+0x2954): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necr.o(.text+0x2954): cannot handle R_PARISC_PCREL17F for __builtin_sin
necr.o(.text+0x2d24): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necr.o(.text+0x2d24): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necr.o(.text+0x2d24): cannot handle R_PARISC_PCREL17F for __builtin_sin
necr.o(.text+0x2d80): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necr.o(.text+0x2d80): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necr.o(.text+0x2d80): cannot handle R_PARISC_PCREL17F for __builtin_cos
necs.o: In function `tbf_':
necs.o(.text+0x15d8): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necs.o(.text+0x15d8): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necs.o(.text+0x15d8): cannot handle R_PARISC_PCREL17F for __builtin_sin
necs.o(.text+0x15e4): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necs.o(.text+0x15e4): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necs.o(.text+0x15e4): cannot handle R_PARISC_PCREL17F for __builtin_cos
necs.o(.text+0x17fc): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necs.o(.text+0x17fc): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necs.o(.text+0x17fc): cannot handle R_PARISC_PCREL17F for __builtin_sin
necs.o(.text+0x1808): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necs.o(.text+0x1808): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necs.o(.text+0x1808): cannot handle R_PARISC_PCREL17F for __builtin_cos
necs.o: In function `unere_':
necs.o(.text+0x21c8): undefined reference to `__builtin_sin'
/usr/local/bin/ld: necs.o(.text+0x21c8): cannot find stub entry 00000038___builtin_sin+0
/usr/local/bin/ld: necs.o(.text+0x21c8): cannot handle R_PARISC_PCREL17F for __builtin_sin
necs.o(.text+0x21d4): undefined reference to `__builtin_cos'
/usr/local/bin/ld: necs.o(.text+0x21d4): cannot find stub entry 00000038___builtin_cos+0
/usr/local/bin/ld: necs.o(.text+0x21d4): cannot handle R_PARISC_PCREL17F for __builtin_cos
collect2: ld returned 1 exit status
make: *** [nec] Error 1




From - Thu Nov 08 21:16:59 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] configure --host=xx revisited
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To: Markus Werle <markus@lufmech.rwth-aachen.de>
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On Thu, Mar 22, 2001 at 01:40:28PM +0100, Markus Werle wrote:
> Hi !
> 
> during the last months I stumbled through the naming
> conventions of "host" used in configure scripts of
> gcc/binutils and other gnu packages.
> 
> I am looking for information about this naming convention.
> Some people got confused configuring gcc for hpux, because
> e.g. hppa-2.0w-etc. does not mean a 64-bit version.

hppa-foo -- 32 bit, pa 1.1
hppa2.0-foo -- 32 bit, pa 2.0
hppa2.0w-foo -- 64 bit

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] FYI: kernel semaphore bug
Date: Thu, 22 Mar 2001 21:49:40 +0000
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To: parisc-linux@parisc-linux.org
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there's a minor problem that probably won't affect anyone which occurs
under rare conditions with contention on an N-way semaphore.  It will be
fixed by upgrading to 2.4.2 so I'm not going to put in a workaround.

for the curious:

P1: down()
P2: down()
P3: down() -- sleeps
P4: down() -- sleeps
P1: up() -- calls wake_up
P2: up() -- calls wake_up

wake_up will only wake P3 and not P4.  This is fixed in the wait_queue
rewrite in 2.4.2.  I could hack it by having P3 check whether the queue
still had tasks on it and the semaphore count was >0 and do a wake_up
itself in that case.  But I'm not going to do that.

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] The new FS of ESIEE Team is ready
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Cc: "parisc-linux@lists.parisc-linux.org" <parisc-linux@lists.parisc-linux.org>,
	Giacomo Mulas <gmulas@ca.astro.it>,
	=?iso-8859-1?Q?SOETE_Jo=EBl?= <JSO@EUROPAY.COM>,
	William Carlsson <william.carlsson@teligent.se>
To: Thomas Marteau <marteaut@esiee.fr>
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On Tue, Mar 20, 2001 at 08:08:15PM +0100, Thomas Marteau wrote:
> Hi all,
> 
> 	The new FS is ready (~61MB). No "more" bugged with the good TERM parameter and
> no password :)
> It is a specially designed for 712 owners but it is a sane fs, we hope.
> 
> Please, go to our DL page: http://mkhppa1.esiee.fr/en/download.html

Another bug i found -- install-info doesn't work.  I suspect this is
perl's fault.  Anyway, to hack around it (because i really don't need
info pages being installed on my system, but i do need to install glibc),
i added an `exit 0;' near the beginning of the install-info script.

-- 
Revolutions do not require corporate support.




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Interoperability
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Nicolas THOMAS wrote:
> Does anyone of you have references/URL/opinion.... on interoperabilty
> purpose?

Could you provide details on what you mean by "interoperability"?
(Or specific applications that you need to run if you don't need
to build them from scratch)

> The systems I would like to be able to interoperate are :
> - Linux x86
> - Linux PA-risc 32bits
> - Linux PA-risc 64bits
> - HP-UX 11 64bits

Obviously not all four can run the same application binaries.
I do expect a pretty good level of source compatibility (90%+).
On the PARISC OS's, even a degree of binary compatibility.

Provided details, I can forward things not covered by HPUX to the
right people (caveat: no guarantee they will get fixed...).  And
you are welcome to post patches for stuff in either 32 or 64-bit
parisc-linux kernels here.
(Or submit bug reports to bugs.parisc-linu.org.)


> I already know the STK: http://devresource.hp.com/STK/

Also try:
    http://devresource.hp.com/OpenSource/Tools/OpenSourceLib.html
         (I think this might be the same/related to the STK)
    http://devresource.hp.com/LPK/

The LPK (Linux Porting Kit) seems to be pretty good (though not perfect).

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: Re: [parisc-linux] configure --host=xx revisited
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Matthew Wilcox wrote:

> hppa-foo -- 32 bit, pa 1.1
> hppa2.0-foo -- 32 bit, pa 2.0
> hppa2.0w-foo -- 64 bit

This is wrong, ding dong!
This is the reason I asked ...

AFAIK the "w" stands for wide mode hardware
which does _not_ always mean 64 bit.
I am aware of the fact that this naming convention has
asymmetries with hp cc manpage, but unfortuantely
my gcc configured for hppa2.0w-hp-hpux11.00 is a 32 bit.

Who can help further?





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Grant Grundler <grundler@puffin.external.hp.com> writes:

> Nicolas THOMAS wrote:
> > Does anyone of you have references/URL/opinion.... on interoperabilty
> > purpose?
> 
> Could you provide details on what you mean by "interoperability"?
> (Or specific applications that you need to run if you don't need
> to build them from scratch)

The main goal is to be able to have a back-end on one host and a front-end 
on the other. Communication is done with the network (sockets).



> 
> > The systems I would like to be able to interoperate are :
> > - Linux x86
> > - Linux PA-risc 32bits
> > - Linux PA-risc 64bits
> > - HP-UX 11 64bits
> 
> Obviously not all four can run the same application binaries.
Of course :-)

Thanks for your help.

Nicolas




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Subject: Re: [parisc-linux] Init not found on 735/125?
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Xref: news.gmane.org gmane.linux.ports.parisc:10587

Downloaded and compiled sash...tried passing init=/bin/sash in the lifimage.  Still no luck...I'm
stumped.

-R
--- Richard Hirst <rhirst@linuxcare.com> wrote:
> On Thu, Mar 22, 2001 at 06:10:32AM -0800, Robert Liesenfeld wrote:
> > Mounting from another machine was among the first things I tried; I can access /sbin/init on
> the
> > nfs mount point no problem.  Looks like I do not have a copy of sash...I do have the
> > cross-compilers installed, can someone point me to the sash source?
> 
> It lives under the userspace dir in cvs on puffin.external.hp.com.
> 
> Richard
> 


__________________________________________________
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Subject: Re: [parisc-linux] Init not found on 735/125?
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Xref: news.gmane.org gmane.linux.ports.parisc:10588

On Fri, Mar 23, 2001 at 02:50:42AM -0800, Robert Liesenfeld wrote:
> Downloaded and compiled sash...tried passing init=/bin/sash in the lifimage.  Still no luck...I'm
> stumped.

Run tcpdump on the network to see what the parisc box is really trying
to access.  If you see it is reading the content of init or sash, then
you could add debug code to your kernel to see why it doesn't like
what it is reading.

Richard





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From: Paul Bame <bame@fc.hp.com>
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Subject: [parisc-linux] Re: Linux on a HP 712/60
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= Hi Paul,
= 
= I just managed to secured a HP 712/60 workstation running a custom HP-UX
= 10.20 image [...] It only has a 1 gig disk, but I was
= planning on using it as a Linux gateway at home. I have to secure a scsi
= cable to hook up a cd-rom drive before I do anything though...

We use network booting most of the time.  That plus a NFS root means
you don't really need a CD to install.  I don't know if the second LAN
card in a 712 is supported yet.

= It appears as though Linux on the hppa architecture is still in its
= infancy.  Can you fill me in if there is a stable version and any
= caveats/gotchas?

Speaking of CDs, the "0.5" CD is pretty moldy though it works OK on
a 712.  Even if you use that CD for user space, you'll want to build a
new kernel.  Instructions are on the web site, www.parisc-linux.org.
FYI the next CD will have some significant changes and we're not planning
a friendly update process, so be sure to save any of your personal
work based on 0.5CD so that you could tolerate a cold install.
I've CC-ed, and you might want to peruse the mailing list archives
and perhaps join the parisc-linux@parisc-linux.org mailing list
(instructions at the web site).

While there are still plenty of gotchas, the number is shrinking and
we can use your help finding and fixing them.  http://bugs.parisc-linux.org
is probably the best place to check for (and report) problems.  If the
second LAN card is supported, I think there's enough to make a decent
gateway already.

	-Paul Bame




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Interoperability
Date: Fri, 23 Mar 2001 16:29:04 +0000
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To: Nicolas THOMAS <thomas@ispserv.grenoble.hp.com>
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On Fri, Mar 23, 2001 at 11:06:50AM +0100, Nicolas THOMAS wrote:
> 
> The main goal is to be able to have a back-end on one host and a front-end 
> on the other. Communication is done with the network (sockets).

Yes, all four combinations talk TCP/IP.

-- 
Revolutions do not require corporate support.




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] New compilers available
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I have updated the native compiler debs again,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/newcompilers-20010323/

- New glibc packages that fix pthreads. You can now safely use the nscd 
package and other pthreads apps.
- New gcc packages that fix a problem when compiling a libperl shared perl.
- binutils are the same as 20010321

You don't have to grab them unless you're seeing these problems, but it 
wouldn't hurt either.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HELP HELP - my power supply of the 720 !!
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HELP !

I have a problem with my power supply on the HP 720 work station.
Ok thats off topic, but I need help !

Since a week I have trouble with my 720. When I switch it on,
the LEDs flashes up for a part of a second (ca. 100-200ms), and then
it's dead again. The power supply cannot hold up the power.

After switch off the machine (or unplugging from main supply), it can
start in normal manner. Another day, it has the trouble again.

I debugged the machine inside with multimeter, isolated circutis
(removed CPU and I/O cards, etc) and analysed some points.

The problem is definitely the power supply, not another part in the
Apollo 720. 

As there a hardware docu of this power supply ? .. to have a chance to
repair it ?
Is there anybody who can help me with a cheap (very cheap) replacement
of a power supply ?

Please contact me in this subject !!

Cheers 
	Christoph P.


-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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From: "Brian Stewart" <pdksh@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Help with 710 Network Driver
Date: Sat, 24 Mar 2001 08:58:11 -0500
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I am interested in trying to resolve some of the problems with the 710 with
its LAN and SCSI problems. I am not a Programming GURU but the re-write of
the LAN driver should not be too far beyond my abilities. I would appreciate
anyone's observations and details regarding the failure of the LAN drivers
on a 710 or 705.

My observations;
1) You can not compile the kernel (finial link fails) without
GSC/PCI/EISA/WAX support
  - 710/705 do not have any of the above features.
2) The LAN driver ./drivers/net/lasi_89586.c has links to ./asm/gsc.h
  - again there is no lasi or gsc support in the 710/705
3) The driver loads but has a message about "blindly" reading the PROM MAC
  - This does not appear to be "ideal" in the mind of the driver
4) The driver does not initialise its memory properly - message is posted at
boot
  - This again does not appear to be "ideal" in the mind of the driver
5) The Lan driver is actually working - sending TX during a BOOTP request
  - It is IMHO trying to talk to a "LASI" or "GSC" controller that does not
exist
    This sorta explains why it appears as if the wires were cut of the LAN
chip

I believe that if the LAN driver is corrected it would be a small jump to
address the broken SCSI driver. I have some logs of the failures but I am at
work right now and to make matters worse I will be on a business trip next
week, access to my mail but not my HP or logs.

If anyone is interested please let me know, This box is too much fun to
spend its time wasting away with mklinux installed.

Thank You

*************************************************
Brian Stewart
pdksh@hotmail.NO.SPAM.com
http://www3.sympatico.ca/trillian
*************************************************




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Hi,
  I have looked at this a bit (remotely, I don't have a 710), and my
conclusion is that both scsi and lan drivers are talking to the
chips just fine.  The problem seems to be that the drivers never
receive interrupts from the chips, which probably means that the
interrupt routing needs setting up differently on these old machines.
Unfortunately I don't have access to any relevant documentation.

Richard


On Sat, Mar 24, 2001 at 08:58:11AM -0500, Brian Stewart wrote:
> I am interested in trying to resolve some of the problems with the 710 with
> its LAN and SCSI problems. I am not a Programming GURU but the re-write of
> the LAN driver should not be too far beyond my abilities. I would appreciate
> anyone's observations and details regarding the failure of the LAN drivers
> on a 710 or 705.
> 
> My observations;
> 1) You can not compile the kernel (finial link fails) without
> GSC/PCI/EISA/WAX support
>   - 710/705 do not have any of the above features.
> 2) The LAN driver ./drivers/net/lasi_89586.c has links to ./asm/gsc.h
>   - again there is no lasi or gsc support in the 710/705
> 3) The driver loads but has a message about "blindly" reading the PROM MAC
>   - This does not appear to be "ideal" in the mind of the driver
> 4) The driver does not initialise its memory properly - message is posted at
> boot
>   - This again does not appear to be "ideal" in the mind of the driver
> 5) The Lan driver is actually working - sending TX during a BOOTP request
>   - It is IMHO trying to talk to a "LASI" or "GSC" controller that does not
> exist
>     This sorta explains why it appears as if the wires were cut of the LAN
> chip
> 
> I believe that if the LAN driver is corrected it would be a small jump to
> address the broken SCSI driver. I have some logs of the failures but I am at
> work right now and to make matters worse I will be on a business trip next
> week, access to my mail but not my HP or logs.
> 
> If anyone is interested please let me know, This box is too much fun to
> spend its time wasting away with mklinux installed.
> 
> Thank You
> 
> *************************************************
> Brian Stewart
> pdksh@hotmail.NO.SPAM.com
> http://www3.sympatico.ca/trillian
> *************************************************
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Help with 710 Network Driver
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On Sat, Mar 24, 2001 at 08:58:11AM -0500, Brian Stewart wrote:
> I am interested in trying to resolve some of the problems with the 710 with
> its LAN and SCSI problems. I am not a Programming GURU but the re-write of
> the LAN driver should not be too far beyond my abilities. I would appreciate
> anyone's observations and details regarding the failure of the LAN drivers
> on a 710 or 705.
> 
> My observations;
> 1) You can not compile the kernel (finial link fails) without
> GSC/PCI/EISA/WAX support
>   - 710/705 do not have any of the above features.

The `GSC' support is really a misnomer.  It's really a `raw read/write
to PA I/O space'.  It's used on boxes which predate and postdate GSC.
I have some changes planned which will address this misnomer, but I
haven't had a chance to do them yet.

> 4) The driver does not initialise its memory properly - message is posted at
> boot
>   - This again does not appear to be "ideal" in the mind of the driver

The driver is attempting to obtain cache-coherent memory.  This is not
available on machines prior to PCX-L (eg 705, 710, 715/Scorpio, 730,
735, etc).  So it drops back to using non-coherent memory and causing
cache flushes before writes and after reads.

> I believe that if the LAN driver is corrected it would be a small jump to
> address the broken SCSI driver. I have some logs of the failures but I am at
> work right now and to make matters worse I will be on a business trip next
> week, access to my mail but not my HP or logs.
> 
> If anyone is interested please let me know, This box is too much fun to
> spend its time wasting away with mklinux installed.

Richard (who is the original author of both these drivers) believes that
the problem is with the IRQ handling from the Asp chip.  Unfortunately
I've been unable to locate documentation for this device as yet.

Thanks for volunteering.

-- 
Revolutions do not require corporate support.




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From: Ryan Bradetich <rbrad@beavis.ybsoft.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Additional PDC cleanups
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Here is a patch that makes the real*_calls in firmware.c static.  This works with
the defconfig for but will not work when the STI console is enabled.  I am posting
the patch here for review, and also suggestions on how to organize the STI calls
so we can encapsulate the real*_calls in firmware.c


The problem with the STI code is this #define in the drivers/video/sti/sticore.h

#define STI_CALL(func, flags, inptr, outptr, glob_cfg) \
	({	 						\
		real32_call( func, (unsigned long)STI_PTR(flags), \
				    STI_PTR(inptr), STI_PTR(outptr), \
				    glob_cfg); \
	})


My first thoughts were to make the STI_CALL function look like this:

#define STI_CALL(func, flags, inptr, outptr, glob_cfg) \
	({	 						\
		pdc_sti_call( func, (unsigned long)STI_PTR(flags), \
				    STI_PTR(inptr), STI_PTR(outptr), \
				    glob_cfg); \
	})

and define the pdc_sti_call in firmware.c.  Anyone have a different
approach that would make more sense? 


Thanks,

- Ryan


===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/firmware.c,v
retrieving revision 1.25
diff -u -p -r1.25 firmware.c
--- firmware.c	2001/03/22 06:46:32	1.25
+++ firmware.c	2001/03/24 22:17:36
@@ -334,6 +334,82 @@ int pdc_mem_mem_table(void *r_addr, void
 }
 #endif
 
+/* FIXME: Is this pdc used?  I could not find type reference to ftc_bitmap
+ * so I guessed at unsigned long.  Someone who knows what this does, can fix 
+ * it later. :)
+ */
+int pdc_do_firm_test_reset(unsigned long ftc_bitmap)
+{
+	return mem_pdc_call(PDC_BROADCAST_RESET, PDC_DO_FIRM_TEST_RESET,
+			    PDC_FIRM_TEST_MAGIC, ftc_bitmap);
+}
+
+int pdc_do_reset()
+{
+	return mem_pdc_call(PDC_BROADCAST_RESET, PDC_DO_RESET);
+}
+
+/*
+ * pdc_putc:
+ * Console character print using IODC.
+ *
+ * Note that only these special chars are architected for console IODC io:
+ * BEL, BS, CR, and LF. Others are passed through.
+ * Since the HP console requires CR+LF to perform a 'newline', we translate
+ * "\n" to "\r\n".
+ */
+
+void pdc_iodc_putc(unsigned char c)
+{
+	/* XXX Should we spinlock posx usage */
+	static int posx;	/* for simple TAB-Simulation... */
+	static int __attribute__((aligned(8)))   iodc_retbuf[32];
+	static char __attribute__((aligned(64))) iodc_dbuf[4096];
+	unsigned int n;
+
+	switch (c) {
+	case '\n':
+		iodc_dbuf[0] = '\r'; 
+		iodc_dbuf[1] = '\n';
+               	n = 2;
+               	posx = 0;
+		break;
+	case '\t':
+		pdc_putc(' ');
+		while (posx & 7) 	/* expand TAB */
+			pdc_putc(' ');
+		return;		/* return since IODC can't handle this */
+	case '\b':
+		posx-=2;		/* BS */
+	default:
+		iodc_dbuf[0] = c;
+		n = 1;
+		posx++;
+		break;
+	}
+
+	real32_call(PAGE0->mem_cons.iodc_io,
+		    (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
+		    PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers),
+		    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0);
+}
+
+int pdc_iodc_getc(unsigned char *c)
+{
+	unsigned long flags;
+	static int __attribute__((aligned(8)))   iodc_retbuf[32];
+	static char __attribute__((aligned(64))) iodc_dbuf[4096];
+	
+	save_flags(flags);
+	cli();
+	real32_call(PAGE0->mem_kbd.iodc_io,
+		    (unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN,
+		    PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers),
+		    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
+	restore_flags(flags);
+	c = *iodc_dbuf;	/* save the character directly to ch */
+	return *iodc_retbuf == 0;
+}
 
 static spinlock_t pdc_lock = SPIN_LOCK_UNLOCKED;
 
@@ -364,7 +440,7 @@ struct narrow_stack {
 	/* in reality, there's nearly 8k of stack after this */
 };
 
-long real32_call(unsigned long fn, ...)
+static long real32_call(unsigned long fn, ...)
 {
 	va_list args;
 	unsigned long r, flags;
@@ -421,7 +497,7 @@ struct wide_stack {
 	/* in reality, there's nearly 8k of stack after this */
 };
 
-long real64_call(unsigned long fn, ...)
+static long real64_call(unsigned long fn, ...)
 {
 	va_list args;
 	unsigned long r, flags;
Index: arch/parisc/kernel/pdc_cons.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/pdc_cons.c,v
retrieving revision 1.24
diff -u -p -r1.24 pdc_cons.c
--- pdc_cons.c	2001/03/08 13:30:33	1.24
+++ pdc_cons.c	2001/03/24 22:17:36
@@ -11,89 +11,23 @@
 #include <asm/system.h>
 #include <asm/pdc.h>	/* for iodc_call() proto and friends */
 
-static int __attribute__((aligned(8)))   iodc_retbuf[32];
-static char __attribute__((aligned(64))) iodc_dbuf[4096];
-
-/*
- * pdc_putc:
- * Console character print using IODC.
- *
- * Note that only these special chars are architected for console IODC io:
- * BEL, BS, CR, and LF. Others are passed through.
- * Since the HP console requires CR+LF to perform a 'newline', we translate
- * "\n" to "\r\n".
- */
-
-static int posx;	/* for simple TAB-Simulation... */
-
-/* XXX Should we spinlock posx usage */
-
-void pdc_putc(unsigned char c)
-{
-	unsigned int n;
-
-	switch (c) {
-	case '\n':
-		iodc_dbuf[0] = '\r'; 
-		iodc_dbuf[1] = '\n';
-               	n = 2;
-               	posx = 0;
-		break;
-	case '\t':
-		pdc_putc(' ');
-		while (posx & 7) 	/* expand TAB */
-			pdc_putc(' ');
-		return;		/* return since IODC can't handle this */
-	case '\b':
-		posx-=2;		/* BS */
-	default:
-		iodc_dbuf[0] = c;
-		n = 1;
-		posx++;
-		break;
-	}
-	{
-		real32_call(PAGE0->mem_cons.iodc_io,
-			(unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
-			PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers),
-			__pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0);
-	}
-}
-
 static void pdc_console_write(struct console *co, const char *s, unsigned count)
 {
 	while(count--)
-		pdc_putc(*s++);
+		pdc_iodc_putc(*s++);
 }
 
-int pdc_console_wait_key(struct console *co)
+unsigned char pdc_console_wait_key(struct console *co)
 {
-	int ch = 'X';
-	int status;
+	unsigned char ch = 'X';
 
 	/* Bail if no console input device. */
 	if (!PAGE0->mem_kbd.iodc_io)
 		return 0;
 	
 	/* wait for a keyboard (rs232)-input */
-	do {
-		unsigned long flags;
-
-		save_flags(flags);
-		cli();
-		status = real32_call(PAGE0->mem_kbd.iodc_io,
-			(unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN,
-			PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers),
-			__pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
-		restore_flags(flags);
-		ch = *iodc_dbuf;	/* save the character directly to ch */
-	} while (*iodc_retbuf == 0);	/* wait for a key */
+	while(pdc_iodc_getc(&ch));
 	return ch;
-}
-
-int pdc_getc(void)
-{
-	return pdc_console_wait_key(NULL);
 }
 
 static int pdc_console_setup(struct console *co, char *options)
Index: arch/parisc/kernel/process.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/process.c,v
retrieving revision 1.34
diff -u -p -r1.34 process.c
--- process.c	2001/02/23 07:02:01	1.34
+++ process.c	2001/03/24 22:17:36
@@ -113,15 +113,12 @@ void machine_restart(char *cmd)
 		** memory self tests. (Not implemented yet)
 		*/
 		if (ftc_bitmap) {
-			mem_pdc_call( PDC_BROADCAST_RESET,
-				PDC_DO_FIRM_TEST_RESET, PDC_FIRM_TEST_MAGIC,
-				ftc_bitmap);
+			pdc_do_firm_test_reset(ftc_bitmap);
 		}
 #endif
 
 		/* "Normal" system reset */
-		(void) mem_pdc_call(PDC_BROADCAST_RESET, PDC_DO_RESET,
-			0L, 0L, 0L);
+		pdc_do_reset();
 
 		/* Nope...box should reset with just CMD_RESET now */
 		gsc_writel(CMD_RESET, COMMAND_GLOBAL);
Index: include/asm-parisc/pdc.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/pdc.h,v
retrieving revision 1.28
diff -u -p -r1.28 pdc.h
--- pdc.h	2001/03/22 16:24:19	1.28
+++ pdc.h	2001/03/24 22:17:38
@@ -600,8 +600,8 @@ struct zeropage {
 #ifndef __ASSEMBLY__
 extern void pdc_console_init(void);
 /* pdc_get/put are NOT SMP safe - use at your own risk! */
-extern int  pdc_getc(void);		/* wait for char */
-extern void pdc_putc(unsigned char);	/* print char */
+extern int  pdc_iodc_getc(unsigned char *); /* wait for char */
+extern void pdc_iodc_putc(unsigned char);   /* print char */
 
 extern void setup_pdc(void);            /* in inventory.c */
 
@@ -639,6 +639,9 @@ int pdc_pci_irt(void *r_addr, void *hpa,
 int pdc_tod_read(struct pdc_tod *tod);
 int pdc_tod_set(unsigned long sec, unsigned long usec);
 
+int pdc_do_firm_test_reset(unsigned long ftc_bitmap);
+int pdc_do_reset(void);
+
 #ifdef __LP64__
 int pdc_mem_mem_table(void *r_addr, void *tbl, unsigned long entries);
 #endif
@@ -646,6 +649,10 @@ int pdc_mem_mem_table(void *r_addr, void
 /* on all currently-supported platforms, IODC I/O calls are always
  * 32-bit calls, and MEM_PDC calls are always the same width as the OS.
  * This means Cxxx boxes can't run wide kernels right now. -PB
+ *
+ * CONFIG_PDC_NARROW has been added to allow 64-bit kernels to run on
+ * systems with 32-bit MEM_PDC calls. This will allow wide kernels to
+ * run on Cxxx boxes now. -RB
  *
  * Note that some PAT boxes may have 64-bit IODC I/O...
  */





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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Additional PDC cleanups
Date: Sun, 25 Mar 2001 08:01:40 +0100
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On Sat, Mar 24, 2001 at 03:44:19PM -0700, Ryan Bradetich wrote:
> My first thoughts were to make the STI_CALL function look like this:
> 
> #define STI_CALL(func, flags, inptr, outptr, glob_cfg) \
> 	({	 						\
> 		pdc_sti_call( func, (unsigned long)STI_PTR(flags), \
> 				    STI_PTR(inptr), STI_PTR(outptr), \
> 				    glob_cfg); \
> 	})
> 
> and define the pdc_sti_call in firmware.c.  Anyone have a different
> approach that would make more sense? 

Makes sense.  you might want to remove the cast and do it inside
pdc_sti_call.  every time i look at the sti code, i have to resist the
urge to rip it into tiny pieces and redo it :-)

> +/*
> + * pdc_putc:
> + * Console character print using IODC.
> + *
> + * Note that only these special chars are architected for console IODC io:
> + * BEL, BS, CR, and LF. Others are passed through.
> + * Since the HP console requires CR+LF to perform a 'newline', we translate
> + * "\n" to "\r\n".
> + */

This is so close to being kernel-doc it seems foolish not to go the
whole hog.

/**
 * iodc_putc - Console character print using IODC.
 * @c: the character to output.
 * 
 * Note that only these special chars are architected for console IODC io:
 * BEL, BS, CR, and LF. Others are passed through.
 * Since the HP console requires CR+LF to perform a 'newline', we translate
 * "\n" to "\r\n".
 */

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] Building packages, problems with printf
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Something we've been running into when building packages is the problem
that printf is defined as a macro when using gcc 2.97.  This should be
resolved by doing the following:

#include <stdio.h>
#undef printf

fixing glibc to not do that seems to not be an option.  ANSI explicitly
allows any of the functions in libc to also be defined as macros.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:17:00 2018
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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: [parisc-linux] Again problem with FS of ESIEE on 720 !
Date: Sun, 25 Mar 2001 23:41:06 +0200
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Again and again. The ESIEE file system does not work. The kernel
is built myself (not from ESIEE !!!) and the nfs_root is set to
ESIEE. The problem is, that the init or other processes like shell
do not start. The hang before any output is done.

I instruemented the kernel for testing stdout via /dev/console and
to print out where it is. In the kernel everything is perfect.

No process is able to start (giver per init= command line or patched
in init/main.c in the kernel tree.

Also an old trick of mine, starting the bash or init via strace from
the kernel (calling strace instead of init in execve) does not work,
noi reaction, the system seems to be halted or no I/O is working,
or perhaps there is a problem with the shared libraries.

Is there something to do special by building the kernel to use ESIEE ??
Cheers
	Christoph


marteau wrote:
> 
> Hi Christoph and PA-RISCers !
> 
> >I have tried the current and the last ESIEE file system,
> >but I have problems with both. I used my own kernel,
> The kernels you will find are designed for 712 but it seems to work
> many others boxes!
> vmlinux.mou is a kernel that integrate the low level mouse driver!
> (you can check via /proc/interrupts)
> 
> >running with the palinux-0.5, but the ESIEE always hangs.
> >If I do not change the /dev/console, I get the warning...
> >(of course, I have not compiled in the STI). So tried
> >to set the `mknod console c 5 1' and I also tried the
> >"hack" doing a link to `ttyS0'. In both cases `init'
> I read what Matthew wrote. We goona look at it in order to be
> automatic
> 
> >gives no welcome message (version, etc...) and the machine
> >hangs !
> Our inittab file is specific for dual screen (if you use STI console
> and Serial terminal!)
> I do not know how it reacts if the kernel expect a console with the
> serail port :( Any idea?
> 
> Also you can refer to this mail:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-March/011997
> .html
> 
> >Now I will instrument the kernel with `printk's to see,
> >if he can start something,.....
> You can but once init is launched the dmesg is less usefull.
> 
> >What's the topic with the TERM variable ??
> TERM=LINUX is not operational
> TERM=vt100 or pcansi are working!
> 
> >Have I set it to a special value ???
> >Can that be the reason ???
> Don't think so
> 
> Bye, Thomas
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------------------------
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company:	christoph.plattner@alcatel.at




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Subject: Re: [parisc-linux] HELP HELP - my power supply of the 720 !!
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To: parisc-linux@parisc-linux.org, alan_meyer@hp.com
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>From time to time I switch my 720 (apollo 9000/720) via a switch in the
plug of the main supply not with the switch on the front of the
workstation.
Can damage this the machine (power supply) ??

Please answer to my problems !

With friendly regards
	Christoph Plattner



Christoph Plattner wrote:
> 
> HELP !
> 
> I have a problem with my power supply on the HP 720 work station.
> Ok thats off topic, but I need help !
> 
> Since a week I have trouble with my 720. When I switch it on,
> the LEDs flashes up for a part of a second (ca. 100-200ms), and then
> it's dead again. The power supply cannot hold up the power.
> 
> After switch off the machine (or unplugging from main supply), it can
> start in normal manner. Another day, it has the trouble again.
> 
> I debugged the machine inside with multimeter, isolated circutis
> (removed CPU and I/O cards, etc) and analysed some points.
> 
> The problem is definitely the power supply, not another part in the
> Apollo 720.
> 
> As there a hardware docu of this power supply ? .. to have a chance to
> repair it ?
> Is there anybody who can help me with a cheap (very cheap) replacement
> of a power supply ?
> 
> Please contact me in this subject !!
> 
> Cheers
>         Christoph P.
> 
> -------------------------------------------------------------------------
> private:        christoph.plattner@dot.at
> company:        christoph.plattner@alcatel.at
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Building packages, problems with printf
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On Sun, 25 Mar 2001, Matthew Wilcox wrote:

> Something we've been running into when building packages is the problem
> that printf is defined as a macro when using gcc 2.97.  This should be
> resolved by doing the following:
> 
> #include <stdio.h>
> #undef printf

That's cheating!  The real fix is to turn

printf (foo_string,
#if SOMETHING
abc_param
#else
xyz_param
#endif
);

into

#if SOMETHING
printf (foo_string, abc_param);
#else
printf (foo_string, xyz_param);
#endif

Earn brownie points sending off proper fixes to package maintainers. :)

> fixing glibc to not do that seems to not be an option.  ANSI explicitly
> allows any of the functions in libc to also be defined as macros.

Alan
-- 
Linuxcare





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Subject: Re: [parisc-linux] Building packages, problems with printf
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On Mon, Mar 26, 2001 at 09:03:34AM +1000, Alan Modra wrote:
> That's cheating!  The real fix is to turn
> 
> printf (foo_string,
> #if SOMETHING
> abc_param
> #else
> xyz_param
> #endif
> );
> 
> into
> 
> #if SOMETHING
> printf (foo_string, abc_param);
> #else
> printf (foo_string, xyz_param);
> #endif
> 
> Earn brownie points sending off proper fixes to package maintainers. :)

Ah, but that doesn't cure netkit-telnet which is c++ and has a method called
printf which gets royally bollixed by this define.

Agreed that's a better solution though for the cases where it applies.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] Building packages, problems with printf
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> Earn brownie points sending off proper fixes to package maintainers. :)

Most package maintainers wont bother. printf as a macro breaks too much code
to be 'interesting' to fix. Many people take the address of printf for 
passing to functions using multiple I/O output methods

> > fixing glibc to not do that seems to not be an option.  ANSI explicitly
> > allows any of the functions in libc to also be defined as macros.

glibc may be ANSI compliant, its just useless if it does this. Useful and
standards compliant  interesect but dont 100% overlap

Alan





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On Mon, Mar 26, 2001 at 12:42:46AM +0100, Alan Cox wrote:
> > Earn brownie points sending off proper fixes to package maintainers. :)
> 
> Most package maintainers wont bother. printf as a macro breaks too much code
> to be 'interesting' to fix. Many people take the address of printf for 
> passing to functions using multiple I/O output methods

you can still do that.  it's still an external function, but for
`optimisation' purposes calls to it go to fprintf.  i think this is a
worthless optimisation myself.

perhaps you can convince drepper of this?  :-)

-- 
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On Wed, Mar 21, 2001 at 10:17:43PM -0700, Matthew Wilcox wrote:
> and it seems to be because the array we're initialising is of size 0
> (128 - SC_LIM).  the following patch seems to DTRT, but i would appreciate
> someone who has a (non-HIL) keyboard testing it and confirming it works.

If no-one comes back to me by next weekend and says `no it doesn't work',
i'm going to commit this anyway and be unsympathetic if it has broken.

-- 
Revolutions do not require corporate support.




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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: [parisc-linux] The printf fiasco
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Actually you cant take the address. Instead your 

	(void *)printf

generates
	(void *)fprintf

and your program core dumps mysteriously at run time





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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] The printf fiasco
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On Mon, Mar 26, 2001 at 12:55:38AM +0100, Alan Cox wrote:
> Actually you cant take the address. Instead your 
> 
> 	(void *)printf
> 
> generates
> 	(void *)fprintf
> 
> and your program core dumps mysteriously at run time

No it doesn't.

# cat ./def-test.c 
#include <stdio.h>

int main(void)
{
        void *a = (void *)printf;
        void *b = (void *)fprintf;
#undef printf
        void *c = (void *)printf;

        printf("a = %p, b = %p, c = %p\n", a, b, c);
        return 0;
}

# gcc -O2 -Wall -W def-test.c -o def-test
# gcc --version
3.0
# ./def-test 
a = 0x26f2, b = 0x271a, c = 0x26f2

that's because

# if __GNUC_PREREQ (2,97)
#  define printf(fmt, args...) fprintf (stdout, fmt, ##args)
# endif

doesn't match printf, but only printf(...)

-- 
Revolutions do not require corporate support.




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From: Ryan Bradetich <rbrad@beavis.ybsoft.com>
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Subject: Re: [parisc-linux] Keyboard cleanup
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Xref: news.gmane.org gmane.linux.ports.parisc:10608

This patch worked fine for me on my 712/80 with a ps2 keyboard.

- Ryan

On Mon, Mar 26, 2001 at 12:33:12AM +0100, Matthew Wilcox wrote:
> On Wed, Mar 21, 2001 at 10:17:43PM -0700, Matthew Wilcox wrote:
> > and it seems to be because the array we're initialising is of size 0
> > (128 - SC_LIM).  the following patch seems to DTRT, but i would appreciate
> > someone who has a (non-HIL) keyboard testing it and confirming it works.
> 
> If no-one comes back to me by next weekend and says `no it doesn't work',
> i'm going to commit this anyway and be unsympathetic if it has broken.
> 
> -- 
> Revolutions do not require corporate support.
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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Subject: [parisc-linux] Help with 710 Network Driver
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I found this in the pmk1.1 micro kernel source for mklinux regarding the 
intel ethernet chip. It appears the chip/system is droping the CX interrupt 
at a very high rate on the 705/710. To correct this the micro kernel driver 
times the last time a CX interrupt was sent I belive. Check it out and maybe 
you can make heads of it Ricahard.

BTW what is a CX interrupt.

Thank You


It is part of the if_596.c ethernet driver code.
_________________________________________________________________________
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#ifdef	PC596XMT_BUG
/*
* The PC596 board on hp700's apparently can lose CX interrupts
* (i.e. interrupts when transmit is complete).  We used to deal
* with this by a 3-second watchdog timeout.  This is not adequate
* for the newer, smaller, all-on-one-board hp710's and hp705's;
* these newer machines lose many more CX interrupts when busy,
* seriously degrading network performance.
*
* A simple datapoint illustrates this more clearly.  A 730 which
* transmitted 4.7 million packets lost 21 CX interrupts.  A 710
* which transmitted 134 thousand packets lost 139 interrupts.
*
* When PC596XMT_BUG is #define'd: On packet transmission, determine
* how long to wait for CX interrupt.  When a CX interrupt arrives,
* clear this timer.  After each call to hardclock() (see "trap.c"),
* if the current time exceeds our timer, set the timer's "tv_sec"
* field to "-1" and create a LAN interrupt.
*
* Note: these data structures are accessed in hardclock(); hence
* they are not part of `pc_softc_t'.
*
* Note: If pc586_waitxmt is too small then you'll end up declaring
* tx interrupts lost too quickly (hardware may still be retransmitting
* due to collisions).  When that happens you'll walk on-top of the
* hardware tx buffer and trash the packet the hardware is still trying
* to put on the wire.
*
* Simple version of the hardware backoff alg:
*
* while (retries < MAX)
*   wait 2**min(retries,10) * slot time
*
* By default MAX == 15 and the slot time is ~50us.  Compute it out
* and it would seem that a packet could live in the hardware for
* about 332750us.  Round it an even 350000 for a little slack.
*
*/
struct timeval pc586_toutxmt[NLAN];	/* last time packet xmit'd */
long pc586_waitxmt = 350000;		/* us. to wait b4 declaring CX lost */
int pc586_eir[NLAN];			/* prochpa lan interrupt register */

#define pc586inton(unit) \
    { \
	extern int asp2procibit[]; \
	register int ibit = aspitab(INT_LAN, SPLLAN, pc586intr , unit); \
	if (ibit > 0 && asp2procibit[ibit] > 0) \
		pc586_eir[unit] = asp2procibit[ibit]; \
	else \
		pc586_eir[unit] = 0; \
    }
#define pc586intoff(unit) \
    { \
	aspitab(INT_LAN, SPLLAN, (void (*)(int))NULL, unit); \
	pc586_eir[unit] = 0; \
	timerclear(&pc586_toutxmt[unit]); \
    }
#else	/* !PC596XMT_BUG */


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I found this in the pmk1.1 micro kernel source for mklinux regarding the 
intel ethernet chip. It appears the chip/system is droping the CX interrupt 
at a very high rate on the 705/710. To correct this the micro kernel driver 
times the last time a CX interrupt was sent I belive. Check it out and maybe 
you can make heads of it Ricahard.

BTW what is a CX interrupt.

Thank You


It is part of the if_596.c ethernet driver code.
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.

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What was the reasoning behind:

/* Note these change from narrow to wide kernels */
#ifdef __LP64__
typedef unsigned long           __kernel_size_t;
typedef long                    __kernel_ssize_t;
typedef long                    __kernel_ptrdiff_t;
typedef long                    __kernel_time_t;
#else
typedef unsigned int            __kernel_size_t;
typedef int                     __kernel_ssize_t;
typedef int                     __kernel_ptrdiff_t;
typedef int                     __kernel_time_t;
#endif

in <asm/posix_types.h> ?

on a 32-bit kernel, sizeof(long) == sizeof(int), so why can't we just use
the first set of typedefs?

-- 
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From: Alan Modra <alan@linuxcare.com.au>
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On Wed, 28 Mar 2001, Matthew Wilcox wrote:

> on a 32-bit kernel, sizeof(long) == sizeof(int), so why can't we just use
> the first set of typedefs?

It avoids lots and lots of gcc warning messages compiling the kernel.  gcc
makes the fine distinction that long != int, even if they are the same
physical size.  size_t on pa32 is unsigned int but on pa64 is
unsigned long, and gcc knows about this for its builtin string functions.

Alan
-- 
Linuxcare






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Of course I am talking about gcc-3.0, but I am not sure if
it will come on that platform. My experience with
gcc on hpux is: better buld it with gcc as a starting point
(hen and egg problem) This is why I really want an access to
the cvs server of the puffin group, in the hope that puffin-gcc
bootstraps on a vanilla system.

Back to the nitty gritty:

I reported a failure of anonymous cvs access on this ML
some weeks ago (Mon, 29 Jan 2001).
It is still impossible for me to log in.

It may be that I am too stupid to do it right, but then please help me:
I did the cvs login as described, but anonymous login failed for some
unknown reason.

any idea?

> cvs --version

Concurrent Versions System (CVS) 1.11 (client/server)

> cvs -d :pserver:anonymous@puffin.external.hp.com:/home/cvs/parisccv login
anonymous
(Logging in to anonymous@puffin.external.hp.com)
CVS password:
cvs login: authorization failed: server puffin.external.hp.com rejected
access to /home/cvs/parisccv for user anonymous


Markus








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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] a new (and free) C++ compiler for hppa!
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To: Markus Werle <markus@lufmech.rwth-aachen.de>
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In-Reply-To: <3AC1A3C9.F94899D6@lufmech.rwth-aachen.de>; from markus@lufmech.rwth-aachen.de on Wed, Mar 28, 2001 at 10:41:45AM +0200
Xref: news.gmane.org gmane.linux.ports.parisc:10614

On Wed, Mar 28, 2001 at 10:41:45AM +0200, Markus Werle wrote:
> > cvs -d :pserver:anonymous@puffin.external.hp.com:/home/cvs/parisccv login
> anonymous
> (Logging in to anonymous@puffin.external.hp.com)
> CVS password:
> cvs login: authorization failed: server puffin.external.hp.com rejected
> access to /home/cvs/parisccv for user anonymous

A simple

cvs -d :pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc co gcc

works for me.  Don't know where you got the 'parisccv' part of your
command line from.

[rhirst@rhirst rhirst]$ cvs --version

Concurrent Versions System (CVS) 1.10.7 (client/server)

Copyright (c) 1989-1998 Brian Berliner, david d `zoo' zuhn, 
                        Jeff Polk, and other authors

CVS may be copied only under the terms of the GNU General Public License,
a copy of which can be found with the CVS distribution kit.

Specify the --help option for further information about CVS


Richard





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Richard Hirst wrote:

> cvs -d :pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc co gcc
>
> works for me.  Don't know where you got the 'parisccv' part of your
> command line from.

My fault.  A typo.
Thanks for Your answer.

Markus





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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Patch for modutils 2.4.4, support SEGREL32 relocs on hppa/hppa64
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Hi Keith,
  A small fix for modutils on hppa...

Richard


diff -ur modutils-2.4.4/ChangeLog modutils/ChangeLog
--- modutils-2.4.4/ChangeLog	Mon Mar 26 10:29:56 2001
+++ modutils/ChangeLog	Wed Mar 28 10:57:07 2001
@@ -1,3 +1,6 @@
+
+	* Support for SEGREL32 relocs on hppa/hppa64.  Richard Hirst
+
 2001-03-26  Keith Owens  <kaos@ocs.com.au>
 
 	modutils 2.4.4
diff -ur modutils-2.4.4/obj/obj_hppa.c modutils/obj/obj_hppa.c
--- modutils-2.4.4/obj/obj_hppa.c	Sun Mar 25 12:13:48 2001
+++ modutils/obj/obj_hppa.c	Wed Mar 28 00:36:11 2001
@@ -529,6 +529,10 @@
     /* Easy. */
     break;
 
+  case R_PARISC_SEGREL32:
+    v -= f->baseaddr;
+    break;
+
   case R_PARISC_DPREL21L:
   case R_PARISC_DPREL14R:
     v -= dp;
@@ -566,9 +570,10 @@
     case R_PARISC_DIR32:
     case R_PARISC_PLABEL32:
     case R_PARISC_PCREL17F:
+    case R_PARISC_SEGREL32:
       fsel = e_fsel;
       break;
-	
+
     case R_PARISC_DPREL21L:
     case R_PARISC_DIR21L:
       fsel = e_lrsel;
@@ -602,6 +607,7 @@
     {
     case R_PARISC_DIR32:
     case R_PARISC_PLABEL32:
+    case R_PARISC_SEGREL32:
       r_format = 32;
       break;
 
diff -ur modutils-2.4.4/obj/obj_hppa64.c modutils/obj/obj_hppa64.c
--- modutils-2.4.4/obj/obj_hppa64.c	Fri Jan  5 01:45:19 2001
+++ modutils/obj/obj_hppa64.c	Wed Mar 28 10:48:59 2001
@@ -361,6 +361,7 @@
 		need_stub = TRUE;
 		break;
 	    case R_PARISC_DIR64:
+	    case R_PARISC_SEGREL32:
 		break;
 	    case R_PARISC_FPTR64:
 		/* This is a simple OPD entry (only created for local symbols,
@@ -595,6 +596,11 @@
 	{
 	    loc[0] = v >> 32;
 	    loc[1] = v;
+	}
+	break;
+    case R_PARISC_SEGREL32:
+	{
+	    loc[0] = v - f->baseaddr;
 	}
 	break;
     case R_PARISC_FPTR64:





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Subject: [parisc-linux] Re: Patch for modutils 2.4.4, support SEGREL32 relocs on hppa/hppa64
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On Wed, 28 Mar 2001 11:15:23 +0100, 
Richard Hirst <rhirst@linuxcare.com> wrote:
>  A small fix for modutils on hppa...

Good timing, I was going to release 2.4.5 in 6 hours.





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From: David Wragg <dpw@doc.ic.ac.uk>
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Subject: [parisc-linux] problem building glibc from cvs
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Hi,

Yesterday I tried to build the toolchain, glibc and kernel following
the instructions at <http://www.parisc-linux.org/kernel/>.  The build
host is linux-i386 (RedHat 7.0 with gcc updates applied).  I got the
modules out of CVS, and the builds of binutils and gcc went fine, as
did the kernel preparation step.  But the glibc build failed with this
error from gcc:

../sysdeps/unix/sysv/linux/hppa/sysdep.c:35: Internal compiler error in make_dec
l_rtl, at varasm.c:597
Please submit a full bug report, with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.


This happens early in the glibc build process; I think it occurs at
the first use of weak_alias encountered.  The compiler being used is
definitely hppa-linux-gcc.

Does anyone else have this problem, or am I missing something?

(This is my first play with Linux/PARISC, but I'm familiar with
building the toolchain, glibc, and the kernel on other platforms).


Dave




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Subject: Re: [parisc-linux] problem building glibc from cvs
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On 28 Mar 2001, David Wragg wrote:

> But the glibc build failed with this
> error from gcc:
> 
> ../sysdeps/unix/sysv/linux/hppa/sysdep.c:35: Internal compiler error in make_dec
> l_rtl, at varasm.c:597
> Please submit a full bug report, with preprocessed source if appropriate.
> See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

I've been making some changes to gcc in the last few days as part of
preparing to merge upstream.  The changes ought to have been innocuous,
but it's entirely possible I've made a blue somewhere.  I'll see if I can
duplicate your problem.  More news in an hour or so.  Or possibly 8 hours
if I give up for the time being and go to bed :-)

Alan





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Xref: news.gmane.org gmane.linux.ports.parisc:10620

On Wed, 28 Mar 2001, Alan Modra wrote:

> On 28 Mar 2001, David Wragg wrote:
> 
> > But the glibc build failed with this
> > error from gcc:
> > 
> > ../sysdeps/unix/sysv/linux/hppa/sysdep.c:35: Internal compiler error in make_dec
> > l_rtl, at varasm.c:597
> > Please submit a full bug report, with preprocessed source if appropriate.
> > See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
> 
> I've been making some changes to gcc in the last few days as part of
> preparing to merge upstream.  The changes ought to have been innocuous,
> but it's entirely possible I've made a blue somewhere.  I'll see if I can
> duplicate your problem.  More news in an hour or so.  Or possibly 8 hours
> if I give up for the time being and go to bed :-)

OK, the new failure is a result of me fixing a bug with #include and
#define ordering that accidentally disabled dwarf2 debug info for us.  The
underlying dwarf2 bug has already been fixed upstream, so I'm about to
merge in the following to fix it:

2001-03-23  Jim Wilson  <wilson@redhat.com>
	* varasm.c (make_decl_rtl): Add TREE_PUBLIC check to abort test.
	(assemble_alias): Call make_decl_rtl.

and this one for good measure

2001-03-26  Jakub Jelinek  <jakub@redhat.com>
	* varasm.c (make_decl_rtl): Don't append var_labelno discriminator
	to variable names where DECL_NAME is different from
	DECL_ASSEMBLER_NAME.

Thanks for the report.  (easy-to-fix bug reports always welcome!)

Alan
-- 
Linuxcare





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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] a new (and free) C++ compiler for hppa!
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To: Markus Werle <markus@lufmech.rwth-aachen.de>
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On Wed, Mar 28, 2001 at 10:41:45AM +0200, Markus Werle wrote:
> It may be that I am too stupid to do it right, but then please help me:
> I did the cvs login as described, but anonymous login failed for some
> unknown reason.

Excuse me.  I replied to you twice pointing out your error.  Your mail
system was broken.

http://lists.parisc-linux.org/pipermail/parisc-linux/2001-January/010935.html
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-January/010936.html

Don't complain that you weren't helped.

-- 
Revolutions do not require corporate support.




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From: bame@riverrock.org
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Subject: [parisc-linux] FYI floating point
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Xref: news.gmane.org gmane.linux.ports.parisc:10622

After adding code to emulate the FRND instruction I thought
I'd be done with FP, but I've been seeing unimplemented instruction traps
on FP instructions that I know are implemented (FSUB, FDIV).  Apparently
the FPU expects emulation to handle the exceptional cases of some
instructions (such as division by a very tiny number).  Don't count
on this to be fixed until sometime next week.

	-Paul Bame




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From: "Jim Hull" <jim_hull@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] FYI floating point
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Paul wrote:

> Apparently
> the FPU expects emulation to handle the exceptional cases of some
> instructions (such as division by a very tiny number).  Don't count
> on this to be fixed until sometime next week.

Yes, the architecture allows the FP hardware to give up and trap to the
emulation handler for any reason whatsoever.  The emulation handler is
expected to include a full implementation of all instructions.

When the lack of of an FP emulation handler in parisc-linux was first
discussed on this list, I started the machinery inside HP to get the HP-UX
one open-sourced.  Thanks to the work of many individuals in HP, this is
actually happening now.  So, if you'd like to hack in some minimal support
to get a particular program working, fine, but otherwise I would suggest
you wait until the HP-UX handler is released.

 -- Jim





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From: Ryan Bradetich <rbrad@beavis.ybsoft.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] PDC cleanup and encapsulation
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--ZGiS0Q5IWpPtfppv
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Hello parisc-linux hackers,

This is a fairly extensive patch which (almost) finishes the PDC cleanups I
have been working on.  The goal of this patch was to add kernel-docs and
encapsulate the firmware calls so the caller does not have to worry about
alignment issues, etc.

The last PDC/firware cleanup I have on my list is to rename asm/pdc.h
to firmware.h.  This will be a seperate patch after this patch has been
reviewed/approved/committed.

I have tested this patch on the following machines:
	- 712/80 using STI console
	- C200 32-bit kernel using serial console
	- A500 64-bit kernel using serial console

Since the majority of the changes are in firmware.c and pdc.h
I have included include those files in their entirity to make
them easier to read.

As always, feedback, concerns, and questions are welcome.

Thanks,

- Ryan


--ZGiS0Q5IWpPtfppv
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="pdc4.patch"

? pdc4.patch
Index: arch/parisc/kernel/Makefile
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/Makefile,v
retrieving revision 1.33
diff -u -p -r1.33 Makefile
--- Makefile	2001/03/24 03:09:50	1.33
+++ Makefile	2001/03/29 07:57:50
@@ -41,7 +41,7 @@ obj-$(CONFIG_IOMMU_SBA) += sba_iommu.o
 obj-$(CONFIG_IOMMU_CCIO) += ccio-dma.o
 obj-$(CONFIG_CHASSIS_LCD_LED) += led.o 
 obj-$(CONFIG_SUPERIO) += superio.o
-obj-$(CONFIG_PARISC64) += pdcpat.o binfmt_elf32.o sys_parisc32.o \
+obj-$(CONFIG_PARISC64) += binfmt_elf32.o sys_parisc32.o \
 		ioctl32.o signal32.o
 
 include $(TOPDIR)/Rules.make
Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/cache.c,v
retrieving revision 1.13
diff -u -p -r1.13 cache.c
--- cache.c	2001/01/13 09:50:00	1.13
+++ cache.c	2001/03/29 07:57:50
@@ -28,7 +28,7 @@ int dcache_stride;
 int icache_stride;
 
 struct pdc_cache_info cache_info;
-#ifndef __LP64__
+#ifndef CONFIG_PA20
 static struct pdc_btlb_info btlb_info;
 #endif
 
@@ -73,7 +73,7 @@ int get_cache_info(char *buffer)
 		cache_info.dt_conf.tc_sh ? " - shared with ITLB":""
 	);
 		
-#ifndef __LP64__
+#ifndef CONFIG_PA20
 	/* BTLB - Block TLB */
 	if (btlb_info.max_size==0) {
 		p += sprintf(p, "BTLB\t\t: not supported\n" );
@@ -164,7 +164,7 @@ cache_init(void)
 			 cache_info.dc_conf.cc_line );
 	icache_stride = ( (1<<(cache_info.ic_conf.cc_block+3)) *
 			 cache_info.ic_conf.cc_line );
-#ifndef __LP64__
+#ifndef CONFIG_PA20
 	if(pdc_btlb_info(&btlb_info)<0) {
 		memset(&btlb_info, 0, sizeof btlb_info);
 	}
Index: arch/parisc/kernel/ccio-dma.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/ccio-dma.c,v
retrieving revision 1.28
diff -u -p -r1.28 ccio-dma.c
--- ccio-dma.c	2001/03/02 10:31:49	1.28
+++ ccio-dma.c	2001/03/29 07:57:50
@@ -1249,11 +1249,9 @@ static struct {
 		u16 hversion;
 		u8  spa;
 		u8  type;
-		u32     foo[3];	/* 16 bytes total */
-} cujo_iodc __attribute__ ((aligned (64)));
+		u32 foo[3];	/* 16 bytes total */
+} cujo_iodc;
 
-static unsigned long cujo_result[32] __attribute__ ((aligned (16))) = {0,0,0,0};
-
 /*
 ** CUJO 2.0 incorrectly decodes a memory access for specific
 ** pages (every page at specific iotlb locations dependent
@@ -1276,6 +1274,7 @@ static unsigned long cujo_result[32] __a
 static void
 ccio_cujo20_hack(struct ioc *ioc)
 {
+	unsigned long bytecnt;
 	u32 iovp = 0, io_io_low;
 	unsigned int idx;
 	unsigned long status, mask;
@@ -1286,12 +1285,12 @@ ccio_cujo20_hack(struct ioc *ioc)
 	if(!(CUJO_RAVEN_LOC == io_io_low || CUJO_FIREHAWK_LOC == io_io_low))
 		return;
 	
-	status = pdc_iodc_read(&cujo_result, (void *)CUJO_RAVEN_LOC, 0, &cujo_iodc, 16);
+	status = pdc_iodc_read(&bytecnt, (void *)CUJO_RAVEN_LOC, 0, &cujo_iodc, 16);
 	if(0 == status) {
 		if(CUJO_20_BADHVERS == cujo_iodc.hversion)
 			iovp = CUJO_20_BADPAGE1;
 	} else {
-		status = pdc_iodc_read(&cujo_result, (void *)CUJO_FIREHAWK_LOC, 0, &cujo_iodc, 16);
+		status = pdc_iodc_read(&bytecnt, (void *)CUJO_FIREHAWK_LOC, 0, &cujo_iodc, 16);
 		if(0 == status) {
 			if(CUJO_20_BADHVERS == cujo_iodc.hversion)
 				iovp = CUJO_20_BADPAGE2;
Index: arch/parisc/kernel/drivers.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/drivers.c,v
retrieving revision 1.14
diff -u -p -r1.14 drivers.c
--- drivers.c	2001/02/27 00:35:43	1.14
+++ drivers.c	2001/03/29 07:57:50
@@ -24,10 +24,6 @@ static struct hp_device pa_devices[MAX_D
 
 static struct pa_iodc_driver *pa_drivers = NULL;
 
-static unsigned long pdc_result[32] __attribute__ ((aligned (16))) = {0,0,0,0};
-static  u8 iodc_data[32] __attribute__ ((aligned (64)));
-
-
 static int compare_spec( struct hp_device * hp_dev,
 	struct pa_iodc_driver *driver)
 {
@@ -153,10 +149,12 @@ int add_pa_dev_addr(struct hp_device *hp
 struct hp_device *alloc_pa_dev(unsigned long hpa)
 {
 	int i, status;
+	unsigned long bytecnt;
+	u8 iodc_data[32];
 	struct hp_device * d;
 
 	d = &pa_devices[num_devices];
-	status = pdc_iodc_read(&pdc_result, (void *)hpa, 0, &iodc_data, 32);
+	status = pdc_iodc_read(&bytecnt, (void *)hpa, 0, &iodc_data, 32);
 	if (status != PDC_RET_OK) {
 		/* There is no device here, so we'll skip it */
 		return NULL;
Index: arch/parisc/kernel/firmware.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/firmware.c,v
retrieving revision 1.25
diff -u -p -r1.25 firmware.c
--- firmware.c	2001/03/22 06:46:32	1.25
+++ firmware.c	2001/03/29 07:57:51
@@ -44,6 +44,36 @@
 
 #include <stdarg.h>
 
+static spinlock_t pdc_lock = SPIN_LOCK_UNLOCKED;
+static unsigned long pdc_result[32] __attribute__ ((aligned (8)));
+static unsigned long pdc_result2[32] __attribute__ ((aligned (8)));
+
+/* on all currently-supported platforms, IODC I/O calls are always
+ * 32-bit calls, and MEM_PDC calls are always the same width as the OS.
+ * This means Cxxx boxes can't run wide kernels right now. -PB
+ *
+ * CONFIG_PDC_NARROW has been added to allow 64-bit kernels to run on
+ * systems with 32-bit MEM_PDC calls. This will allow wide kernels to
+ * run on Cxxx boxes now. -RB
+ *
+ * Note that some PAT boxes may have 64-bit IODC I/O...
+ */
+
+/* yes 'int', not 'long' -- IODC I/O is always 32-bit stuff */
+#ifdef __LP64__
+static long real64_call(unsigned long function, ...);
+#endif
+static long real32_call(unsigned long function, ...);
+
+#if defined(__LP64__) && ! defined(CONFIG_PDC_NARROW)
+#define MEM_PDC (unsigned long)(PAGE0->mem_pdc_hi) << 32 | PAGE0->mem_pdc
+#   define mem_pdc_call(args...) real64_call(MEM_PDC, args)
+#else
+#define MEM_PDC (unsigned long)PAGE0->mem_pdc
+#   define mem_pdc_call(args...) real32_call(MEM_PDC, args)
+#endif
+
+
 #define ASSERT_ALIGN(ptr, align)					\
 	do { if(((unsigned long)(ptr)) & (align-1)) {			\
 		printk("PDC: %s:%d  %s() called with "	\
@@ -53,6 +83,13 @@
 		return -1;						\
 	} } while(0)
 	
+/**
+ * f_extend - Convert PDC addresses to kernel addresses.
+ * @address: Address returned from PDC.
+ *
+ * This function is used to convert PDC addresses into kernel addresses
+ * when the PDC address size and kernel address size are different.
+ */
 static unsigned long f_extend(unsigned long address)
 {
 #ifdef CONFIG_PDC_NARROW
@@ -65,6 +102,14 @@ static unsigned long f_extend(unsigned l
 	return address;
 }
 
+/**
+ * convert_to_wide - Convert the return buffer addresses into kernel addresses.
+ * @address: The return buffer from PDC.
+ *
+ * This fucntion is used to convert the return buffer addresses retrieve from PDC
+ * into kernel addresses when the PDC address size and kernel address size are
+ * different.
+ */
 static void convert_to_wide(unsigned long *addr)
 {
 #ifdef CONFIG_PDC_NARROW
@@ -75,268 +120,655 @@ static void convert_to_wide(unsigned lon
 #endif
 }
 
-/* verify address can be accessed without an HPMC */
+/**
+ * pdc_add_valid - Verify address can be accessesd without causing a HPMC.
+ * @address: Address to be verified.
+ *
+ * This PDC call attempts to read from the specified address and verify
+ * the address is valid.
+ */
 int pdc_add_valid(void *address)
 {
-	ASSERT_ALIGN(address, 4);
-	return mem_pdc_call(PDC_ADD_VALID, PDC_ADD_VALID_VERIFY, address);
-}
+        int retval;
 
-int pdc_chassis_disp(unsigned long disp)
+        spin_lock_irq(&pdc_lock);
+        retval = mem_pdc_call(PDC_ADD_VALID, PDC_ADD_VALID_VERIFY, address);
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
+}
+
+/**
+ * pdc_chassis_info - Return chassis information.
+ * @result: The return buffer.
+ * @chassis_info: The memory buffer address.
+ * @len: The size of the memory buffer address.
+ *
+ * An HVERSION dependent call for returning the chassis information.
+ */
+int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len)
 {
-	return mem_pdc_call(PDC_CHASSIS, PDC_CHASSIS_DISP, disp);
-}
+        int retval;
+
+        spin_lock_irq(&pdc_lock);
+        retval = mem_pdc_call(PDC_CHASSIS, PDC_RETURN_CHASSIS_INFO,
+                              __pa(pdc_result), __pa(pdc_result2), len);
+	memcpy(chassis_info, pdc_result, sizeof(*chassis_info));
+	memcpy(led_info, pdc_result2, sizeof(*led_info));
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
+}
+
+/**
+ * pdc_coproc_cfg - To identify coprocessors attached to the processor.
+ * @pdc_coproc_info: Return buffer address.
+ *
+ * This PDC call returns the presence and status of all the coprocessors
+ * attached to the processor.
+ */
+int pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info)
+{
+        int retval;
 
-int pdc_chassis_info(void *pdc_result, void *chassis_info, unsigned long len)
+        spin_lock_irq(&pdc_lock);
+        retval = mem_pdc_call(PDC_COPROC, PDC_COPROC_CFG, __pa(pdc_result));
+        convert_to_wide(pdc_result);
+        pdc_coproc_info->ccr_functional = pdc_result[0];
+        pdc_coproc_info->ccr_present = pdc_result[1];
+        pdc_coproc_info->revision = pdc_result[17];
+        pdc_coproc_info->model = pdc_result[18];
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
+}
+
+/**
+ * pdc_iodc_read - Read data from the modules IODC.
+ * @actcnt: The actual number of bytes.
+ * @hpa: The HPA of the module for the iodc read.
+ * @index: The iodc entry point.
+ * @iodc_data: A buffer memory for the iodc options.
+ * @iodc_data_size: Size of the memory buffer.
+ *
+ * This PDC call reads from the IODC of the module specified by the hpa
+ * argument.
+ */
+int pdc_iodc_read(unsigned long *actcnt, void *hpa, unsigned int index,
+		  void *iodc_data, unsigned int iodc_data_size)
 {
 	int retval;
 
-	ASSERT_ALIGN(pdc_result, 4);
-	ASSERT_ALIGN(chassis_info, 4);
-	retval = mem_pdc_call(PDC_CHASSIS, PDC_RETURN_CHASSIS_INFO,
-			      __pa(pdc_result), __pa(chassis_info), len);
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_IODC, PDC_IODC_READ, __pa(pdc_result), hpa, 
+			      index, __pa(pdc_result2), iodc_data_size);
 	convert_to_wide(pdc_result);
+	*actcnt = pdc_result[0];
+	memcpy(iodc_data, pdc_result2, iodc_data_size);
+	spin_unlock_irq(&pdc_lock);
+
 	return retval;
 }
 
-int pdc_hpa_processor(struct pdc_hpa *address)
+/**
+ * pdc_system_map_find_mods - Locate unarchitected modules.
+ * @pdc_mod_info: Return buffer address.
+ * @mod_path: pointer to dev path structure.
+ * @mod_index: fixed address module index.
+ *
+ * To locate and identify modules which reside at fixed I/O addresses, which
+ * do not self-identify via architected bus walks.
+ */
+int pdc_system_map_find_mods(struct pdc_system_map_mod_info *pdc_mod_info,
+			     struct pdc_module_path *mod_path, long mod_index)
 {
 	int retval;
+
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_SYSTEM_MAP, PDC_FIND_MODULE, __pa(pdc_result), 
+			      __pa(pdc_result2), mod_index);
+	convert_to_wide(pdc_result);
+	memcpy(pdc_mod_info, pdc_result, sizeof(*pdc_mod_info));
+	memcpy(mod_path, pdc_result2, sizeof(*mod_path));
+	spin_unlock_irq(&pdc_lock);
 
-	/* We're using 0 for the last parameter just to make sure.
-	   It's actually HVERSION dependant.  And remember, life is
-	   hard without a backspace. */
-	ASSERT_ALIGN(address, 4);
-	retval = mem_pdc_call(PDC_HPA, PDC_HPA_PROCESSOR, __pa(address), 0);
-	convert_to_wide((unsigned long *)address);
-	address->hpa = f_extend(address->hpa);
+	pdc_mod_info->mod_addr = (void *)f_extend((unsigned long)pdc_mod_info->mod_addr);
 	return retval;
 }
 
-int pdc_coproc_cfg(void *address)
+/**
+ * pdc_system_map_find_addrs - Retrieve additional address ranges.
+ * @pdc_addr_info: Return buffer address.
+ * @mod_index: Fixed address module index.
+ * @addr_index: Address range index.
+ * 
+ * Retrieve additional information about subsequent address ranges for modules
+ * with multiple address ranges.  
+ */
+int pdc_system_map_find_addrs(struct pdc_system_map_addr_info *pdc_addr_info, 
+			      long mod_index, long addr_index)
 {
 	int retval;
+
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_SYSTEM_MAP, PDC_FIND_ADDRESS, __pa(pdc_result),
+			      mod_index, addr_index);
+	convert_to_wide(pdc_result);
+	memcpy(pdc_addr_info, pdc_result, sizeof(*pdc_addr_info));
+	spin_unlock_irq(&pdc_lock);
 
-	ASSERT_ALIGN(address, 4);
-	retval = mem_pdc_call(PDC_COPROC, PDC_COPROC_CFG, __pa(address));
-	convert_to_wide(address);
+	pdc_addr_info->mod_addr = (void *)f_extend((unsigned long)pdc_addr_info->mod_addr);
 	return retval;
 }
-
 
-int pdc_iodc_read(void *address, void *hpa, unsigned int index,
-		  void *iodc_data, unsigned int iodc_data_size)
+/**
+ * pdc_model_info - Return model information about the processor.
+ * @model: The return buffer.
+ *
+ * Returns the version numbers, identifiers, and capabilities from the processor module.
+ */
+int pdc_model_info(struct pdc_model *model) 
 {
 	int retval;
+
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_INFO, __pa(pdc_result), 0);
+	convert_to_wide(pdc_result);
+	memcpy(model, pdc_result, sizeof(*model));
+	spin_unlock_irq(&pdc_lock);
 
-	ASSERT_ALIGN(address, 4);
-	ASSERT_ALIGN(hpa, 4);
-	ASSERT_ALIGN(iodc_data, 4);
-	retval = mem_pdc_call(PDC_IODC, PDC_IODC_READ, __pa(address), hpa, 
-			      index, __pa(iodc_data), iodc_data_size);
-	convert_to_wide(address);
 	return retval;
 }
 
-int pdc_system_map_find_mods(struct pdc_system_map_mod_info *pdc_mod_info,
-			     struct pdc_module_path *mod_path, long mod_index)
+/**
+ * pdc_model_sysmodel - Get the system model name.
+ * @name: A char array of at least 81 characters.
+ *
+ * Get system model name from PDC ROM (e.g. 9000/715 or 9000/778/B160L)
+ */
+int pdc_model_sysmodel(char *name)
 {
-	int retval;
+        int retval;
 
-	ASSERT_ALIGN(pdc_mod_info, 8);
-	ASSERT_ALIGN(mod_path, 8);
-	retval = mem_pdc_call(PDC_SYSTEM_MAP, PDC_FIND_MODULE, __pa(pdc_mod_info), 
-			      __pa(mod_path), mod_index);
-	convert_to_wide((unsigned long *)pdc_mod_info);
-	pdc_mod_info->mod_addr = (void *)f_extend((unsigned long)pdc_mod_info->mod_addr);
-	return retval;
+        spin_lock_irq(&pdc_lock);
+        retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_SYSMODEL, __pa(pdc_result),
+                              OS_ID_HPUX, __pa(name));
+        convert_to_wide(pdc_result);
+
+        if (retval == PDC_RET_OK) {
+                name[pdc_result[0]] = '\0'; /* add trailing '\0' */
+        } else {
+                name[0] = 0;
+        }
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
+}
+
+/**
+ * pdc_model_versions - Identify the version number of each processor.
+ * @cpu_id: The return buffer.
+ * @id: The id of the processor to check.
+ *
+ * Returns the version number for each processor component.
+ *
+ * This comment was here before, but I do not know what it means :( -RB
+ * id: 0 = cpu revision, 1 = boot-rom-version
+ */
+int pdc_model_versions(unsigned long *versions, int id)
+{
+        int retval;
+
+        spin_lock_irq(&pdc_lock);
+        retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_VERSIONS, __pa(pdc_result), id);
+        convert_to_wide(pdc_result);
+        *versions = pdc_result[0];
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
 }
 
-int pdc_system_map_find_addrs(struct pdc_system_map_addr_info *pdc_addr_info, 
-			      long mod_index, long addr_index)
+/**
+ * pdc_model_cpuid - Returns the CPU_ID.
+ * @cpu_id: The return buffer.
+ *
+ * Returns the CPU_ID value which uniquely identifies the cpu portion of
+ * the processor module.
+ */
+int pdc_model_cpuid(unsigned long *cpu_id)
 {
-	int retval;
+        int retval;
 
-	ASSERT_ALIGN(pdc_addr_info, 8);
-	retval = mem_pdc_call(PDC_SYSTEM_MAP, PDC_FIND_ADDRESS, __pa(pdc_addr_info), 
-			      mod_index, addr_index);
-	convert_to_wide((unsigned long *)pdc_addr_info);
-	pdc_addr_info->mod_addr = (void *)f_extend((unsigned long)pdc_addr_info->mod_addr);
-	return retval;
+        spin_lock_irq(&pdc_lock);
+        pdc_result[0] = 0; /* preset zero (call may not be implimented!) */
+        retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CPU_ID, __pa(pdc_result), 0);
+        convert_to_wide(pdc_result);
+        *cpu_id = pdc_result[0];
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
 }
 
+/**
+ * pdc_cache_info - Return cache and TLB information.
+ * @cache_info: The return buffer.
+ *
+ * Returns information about the processor's cache and TLB.
+ */
+int pdc_cache_info(struct pdc_cache_info *cache_info)
+{
+        int retval;
+
+        spin_lock_irq(&pdc_lock);
+        retval = mem_pdc_call(PDC_CACHE, PDC_CACHE_INFO, __pa(pdc_result), 0);
+        convert_to_wide(pdc_result);
+        memcpy(cache_info, pdc_result, sizeof(*cache_info));
+        spin_unlock_irq(&pdc_lock);
 
-int pdc_model_info(struct pdc_model *model) 
+        return retval;
+}
+
+#ifndef CONFIG_PA20
+/**
+ * pdc_btlb_info - Return block TLB information.
+ * @btlb: The return buffer.
+ *
+ * Returns information about the hardware Block TLB.
+ */
+int pdc_btlb_info(struct pdc_btlb_info *btlb) 
 {
-	int retval;
+        int retval;
 
-	ASSERT_ALIGN(model, 8);
-	retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_INFO, __pa(model), 0);
-	convert_to_wide((unsigned long *)model);
-	return retval;
+        spin_lock_irq(&pdc_lock);
+        retval = mem_pdc_call(PDC_BLOCK_TLB, PDC_BTLB_INFO, __pa(pdc_result), 0);
+        memcpy(btlb, pdc_result, sizeof(*btlb));
+        spin_unlock_irq(&pdc_lock);
+
+        if(retval < 0) {
+                btlb->max_size = 0;
+        }
+        return retval;
 }
+#endif
 
-/* get system model name from PDC ROM (e.g. 9000/715 or 9000/778/B160L) */ 
-int pdc_model_sysmodel(char *name)
+#ifndef __LP64__
+/**
+ * pdc_mem_map_hpa - Find fixed module information.  
+ * @address: The return buffer
+ * @mod_path: pointer to dev path structure.
+ *
+ * This call was developed for S700 workstations to allow the kernel to find
+ * the I/O devices (Core I/O). In the future (Kittyhawk and beyond) this
+ * call will be replaced (on workstations) by the architected PDC_SYSTEM_MAP
+ * call.
+ *
+ * This call is supported by all existing S700 workstations (up to  Gecko).
+ */
+int pdc_mem_map_hpa(struct pdc_memory_map *address, struct pdc_module_path *mod_path)
 {
-	int retval;
-	struct pdc_model_sysmodel sys_model;
-	
-	ASSERT_ALIGN(name, 4);
-	sys_model.mod_len = 0;
-	retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_SYSMODEL, __pa(&sys_model), 
-			      OS_ID_HPUX,__pa(name));
-	convert_to_wide((unsigned long *)&sys_model);
-
-	if (retval == PDC_RET_OK) {
-		name[sys_model.mod_len] = '\0'; /* add trailing '\0' */
-	} else {
-		name[0] = 0;
-	}	
-	return retval;
+        int retval;
+
+        spin_lock_irq(&pdc_lock);
+        memcpy(pdc_result2, mod_path, sizeof(*mod_path));
+        retval = mem_pdc_call(PDC_MEM_MAP, PDC_MEM_MAP_HPA, __pa(pdc_result), __pa(pdc_result2));
+        memcpy(address, pdc_result, sizeof(*address));
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
 }
+#endif
+
+/**
+ * pdc_lan_station_id - Get the LAN address.
+ * @lan_addr: The return buffer.
+ * @net_hpa: The network device HPA.
+ *
+ * Get the LAN station address when it is not directly available from the LAN hardware.
+ */
+int pdc_lan_station_id(char *lan_addr, void *net_hpa)
+{
+        int retval;
+	unsigned int ret[2];
 
-/* id: 0 = cpu revision, 1 = boot-rom-version */
-int pdc_model_versions(struct pdc_model_cpuid *cpu_id, int id) 
+        spin_lock_irq(&pdc_lock);
+        retval = mem_pdc_call(PDC_LAN_STATION_ID, PDC_LAN_STATION_ID_READ,
+                              __pa(pdc_result), net_hpa);
+        if(retval < 0) {
+                /* FIXME: else read MAC from NVRAM */
+                memset(lan_addr, 0, PDC_LAN_STATION_ID_SIZE);
+        } else {
+		ret[0] = (unsigned int)pdc_result[0];
+		ret[1] = (unsigned int)pdc_result[1];
+		memcpy(lan_addr, ret, PDC_LAN_STATION_ID_SIZE);
+        }
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
+}
+
+/**
+ * pdc_pci_irt_size - Get the number of entries in the interrupt routing table.
+ * @num_entries: The return value.
+ * @hpa: The HPA for the device.
+ *
+ * This PDC function returns the number of entries in the specified cell's
+ * interrupt table.
+ * Similar to PDC_PAT stuff - but added for Forte/Allegro boxes
+ */ 
+int pdc_pci_irt_size(unsigned long *num_entries, void *hpa)
 {
 	int retval;
-	
-	ASSERT_ALIGN(cpu_id, 8);
-	retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_VERSIONS, __pa(cpu_id), id);
-	convert_to_wide((unsigned long *)cpu_id);
+
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_PCI_INDEX, PDC_PCI_GET_INT_TBL_SIZE, 
+			      __pa(pdc_result), hpa);
+	convert_to_wide(pdc_result);
+	*num_entries = pdc_result[0];
+	spin_unlock_irq(&pdc_lock);
+
 	return retval;
 }
 
-int pdc_model_cpuid(struct pdc_model_cpuid *cpu_id) 
+/** 
+ * pdc_pci_irt - Get the PCI interrupt routing table.
+ * @num_entries: The number of entries in the table.
+ * @hpa: The Hard Physical Address of the device.
+ * @tbl: 
+ *
+ * Get the PCI interrupt routing table for the device at the given HPA.
+ * Similar to PDC_PAT stuff - but added for Forte/Allegro boxes
+ */
+int pdc_pci_irt(unsigned long num_entries, void *hpa, void *tbl)
 {
 	int retval;
+
+	spin_lock_irq(&pdc_lock);
+	pdc_result[0] = num_entries;
+	retval = mem_pdc_call(PDC_PCI_INDEX, PDC_PCI_GET_INT_TBL, 
+			      __pa(pdc_result), hpa, __pa(tbl));
+	spin_unlock_irq(&pdc_lock);
 
-	ASSERT_ALIGN(cpu_id, 8);
-	cpu_id->cpuid = 0; /* preset zero (call maybe not implemented!) */
-	retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CPU_ID, __pa(cpu_id), 0);
-	convert_to_wide((unsigned long *)cpu_id);
 	return retval;
 }
 
-int pdc_cache_info(struct pdc_cache_info *cache_info) 
+/**
+ * pdc_tod_read - Read the Time-Of-Day clock.
+ * @tod: The return buffer:
+ *
+ * Read the Time-Of-Day clock
+ */
+int pdc_tod_read(struct pdc_tod *tod)
 {
-	int retval;
-	
-	ASSERT_ALIGN(cache_info, 8);
-	retval = mem_pdc_call(PDC_CACHE, PDC_CACHE_INFO, __pa(cache_info), 0);
-	convert_to_wide((unsigned long *)cache_info);
-	return retval;
+        int retval;
+
+        spin_lock_irq(&pdc_lock);
+        retval = mem_pdc_call(PDC_TOD, PDC_TOD_READ, __pa(pdc_result), 0);
+        convert_to_wide(pdc_result);
+        memcpy(tod, pdc_result, sizeof(*tod));
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
+}
+
+/**
+ * pdc_tod_set - Set the Time-Of-Day clock.
+ * @sec: The number of seconds since epoch.
+ * @usec: The number of micro seconds.
+ *
+ * Set the Time-Of-Day clock.
+ */ 
+int pdc_tod_set(unsigned long sec, unsigned long usec)
+{
+        int retval;
+
+        spin_lock_irq(&pdc_lock);
+        retval = mem_pdc_call(PDC_TOD, PDC_TOD_WRITE, sec, usec);
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
 }
 
-#ifndef __LP64__
-int pdc_btlb_info(struct pdc_btlb_info *btlb) 
+#ifdef __LP64__
+int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr, struct pdc_memory_table *tbl, 
+		      unsigned long entries)
 {
 	int retval;
 
-	ASSERT_ALIGN(btlb, 8);
-	retval = mem_pdc_call(PDC_BLOCK_TLB, PDC_BTLB_INFO, __pa(btlb), 0);
-	convert_to_wide((unsigned long *)btlb);
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_MEM, PDC_MEM_TABLE, __pa(pdc_result), __pa(pdc_result2), entries);
+	convert_to_wide(pdc_result);
+	memcpy(r_addr, pdc_result, sizeof(*r_addr));
+	memcpy(tbl, pdc_result2, entries * sizeof(*tbl));
+	spin_unlock_irq(&pdc_lock);
 
-	if(retval < 0) {
-		btlb->max_size = 0;
-	}
 	return retval;
 }
+#endif
 
-int pdc_mem_map_hpa(struct pdc_memory_map *r_addr, struct pdc_module_path *mod_path) 
+/* FIXME: Is this pdc used?  I could not find type reference to ftc_bitmap
+ * so I guessed at unsigned long.  Someone who knows what this does, can fix
+ * it later. :)
+ */
+int pdc_do_firm_test_reset(unsigned long ftc_bitmap)
 {
-	int retval;
+        int retval;
 
-	ASSERT_ALIGN(r_addr, 8);
-	ASSERT_ALIGN(mod_path, 8);
-	retval = mem_pdc_call(PDC_MEM_MAP, PDC_MEM_MAP_HPA, __pa(r_addr), __pa(mod_path));
-	convert_to_wide((unsigned long *)r_addr);
-	return retval;
+        spin_lock_irq(&pdc_lock);
+        retval = mem_pdc_call(PDC_BROADCAST_RESET, PDC_DO_FIRM_TEST_RESET,
+                              PDC_FIRM_TEST_MAGIC, ftc_bitmap);
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
 }
 
-int pdc_lan_station_id(char *lan_addr, void *net_hpa) 
+/*
+ * pdc_do_reset - Reset the system.
+ *
+ * Reset the system.
+ */
+int pdc_do_reset()
 {
-	int retval;
-	unsigned char *addr;
-	struct pdc_lan_station_id id;
-	
-	ASSERT_ALIGN(lan_addr, 4);
-	ASSERT_ALIGN(net_hpa, 4);
-	retval = mem_pdc_call(PDC_LAN_STATION_ID, PDC_LAN_STATION_ID_READ, __pa(&id), net_hpa);
-	convert_to_wide((unsigned long *)&id);
-
-	if(retval < 0) {
-		addr = 0;	/* FIXME: else read MAC from NVRAM */
-	} else {
-		addr = id.addr;
-	}
+        int retval;
 
-	if(addr) {
-		memmove(lan_addr, addr, PDC_LAN_STATION_ID_SIZE);
-	} else {
-		memset(lan_addr, 0, PDC_LAN_STATION_ID_SIZE);
-	}
-	return (addr != 0);
+        spin_lock_irq(&pdc_lock);
+        retval = mem_pdc_call(PDC_BROADCAST_RESET, PDC_DO_RESET);
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
 }
-#endif
 
+/**
+ * iodc_iodc_putc - Console character print using IODC.
+ * @c: the character to output.
+ *
+ * Note that only these special chars are architected for console IODC io:
+ * BEL, BS, CR, and LF. Others are passed through.
+ * Since the HP console requires CR+LF to perform a 'newline', we translate
+ * "\n" to "\r\n".
+ */
+void pdc_iodc_putc(unsigned char c)
+{
+        /* XXX Should we spinlock posx usage */
+        static int posx;        /* for simple TAB-Simulation... */
+        static int __attribute__((aligned(8)))   iodc_retbuf[32];
+        static char __attribute__((aligned(64))) iodc_dbuf[4096];
+        unsigned int n;
+
+        switch (c) {
+        case '\n':
+                iodc_dbuf[0] = '\r';
+                iodc_dbuf[1] = '\n';
+                n = 2;
+                posx = 0;
+                break;
+        case '\t':
+                pdc_iodc_putc(' ');
+                while (posx & 7)        /* expand TAB */
+                        pdc_iodc_putc(' ');
+                return;         /* return since IODC can't handle this */
+        case '\b':
+                posx-=2;                /* BS */
+        default:
+                iodc_dbuf[0] = c;
+                n = 1;
+                posx++;
+                break;
+        }
+
+        spin_lock_irq(&pdc_lock);
+        real32_call(PAGE0->mem_cons.iodc_io,
+                    (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
+                    PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers),
+                    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0);
+        spin_unlock_irq(&pdc_lock);
+}
+
+int pdc_sti_call(unsigned long func, unsigned long flags,
+                 unsigned long inptr, unsigned long outputr,
+                 unsigned long glob_cfg)
+{
+        int retval;
+
+        spin_lock_irq(&pdc_lock);  
+        retval = real32_call(func, flags, inptr, outputr, glob_cfg);
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
+}
 
-/* Similar to PDC_PAT stuff in pdcpat.c - but added for Forte/Allegro boxes */
-int pdc_pci_irt_size(void *r_addr, void *hpa)
+#ifdef __LP64__
+/**
+ * pdc_pat_cell_get_number - Returns the cell number.
+ * @cell_info: The return buffer.
+ *
+ * This PDC call returns the cell number of the cell from which the call
+ * is made.
+ */
+int pdc_pat_cell_get_number(struct pdc_pat_cell_num *cell_info)
 {
 	int retval;
 
-	ASSERT_ALIGN(r_addr, 4);
-	ASSERT_ALIGN(hpa, 4);
-	retval = mem_pdc_call(PDC_PCI_INDEX, PDC_PCI_GET_INT_TBL_SIZE, __pa(r_addr), hpa);
-	convert_to_wide(r_addr);
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_PAT_CELL, PDC_PAT_CELL_GET_NUMBER, __pa(pdc_result));
+	memcpy(cell_info, pdc_result, sizeof(*cell_info));
+	spin_unlock_irq(&pdc_lock);
+
 	return retval;
 }
 
-int pdc_pci_irt(void *r_addr, void *hpa, void *tbl)
+/**
+ * pdc_pat_cell_module - Retrieve the cell's module information.
+ * @actcnt: The number of bytes written to mem_addr.
+ * @ploc: The physical location.
+ * @mod: The module index.
+ * @view_type: The view of the address type.
+ * @mem_addr: The return buffer.
+ *
+ * This PDC call returns information about each module attached to the cell
+ * at the specified location.
+ */
+int pdc_pat_cell_module(unsigned long *actcnt, unsigned long ploc, unsigned long mod,
+			unsigned long view_type, void *mem_addr)
 {
 	int retval;
 
-	ASSERT_ALIGN(r_addr, 4);
-	ASSERT_ALIGN(hpa, 4);
-	ASSERT_ALIGN(tbl, 4);
-	retval = mem_pdc_call(PDC_PCI_INDEX, PDC_PCI_GET_INT_TBL, __pa(r_addr), hpa, __pa(tbl));
-	convert_to_wide(r_addr);
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_PAT_CELL, PDC_PAT_CELL_MODULE, __pa(pdc_result), 
+			      ploc, mod, view_type, __pa(pdc_result2));
+	if(!retval) {
+		*actcnt = pdc_result[0];
+		memcpy(mem_addr, pdc_result2, *actcnt);
+	}
+	spin_unlock_irq(&pdc_lock);
+
 	return retval;
 }
 
-/* access the TOD clock */
-int pdc_tod_read(struct pdc_tod *tod)
+/**
+ * pdc_pat_cpu_get_number - Retrieve the cpu number.
+ * @cpu_info: The return buffer.
+ * @hpa: The Hard Physical Address of the CPU.
+ *
+ * Retrieve the cpu number for the cpu at the specified HPA.
+ */
+int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, void *hpa)
 {
 	int retval;
+
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_PAT_CPU, PDC_PAT_CPU_GET_NUMBER,
+			      __pa(&pdc_result), hpa);
+	memcpy(cpu_info, pdc_result, sizeof(*cpu_info));
+	spin_unlock_irq(&pdc_lock);
 
-	ASSERT_ALIGN(tod, 8);
-	retval = mem_pdc_call(PDC_TOD, PDC_TOD_READ, __pa(tod), 0);
-	convert_to_wide((unsigned long *)tod);
 	return retval;
 }
 
-int pdc_tod_set(unsigned long sec, unsigned long usec)
+/**
+ * pdc_pat_get_irt_size - Retrieve the number of entries in the cell's interrupt table.
+ * @num_entries: The return value.
+ * @cell_num: The target cell.
+ *
+ * This PDC function returns the number of entries in the specified cell's
+ * interrupt table.
+ */
+int pdc_pat_get_irt_size(unsigned long *num_entries, unsigned long cell_num)
+{
+	int retval;
+
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_GET_PCI_ROUTING_TABLE_SIZE,
+			      __pa(pdc_result), cell_num);
+	*num_entries = pdc_result[0];
+	spin_unlock_irq(&pdc_lock);
+
+	return retval;
+}
+
+/**
+ * pdc_pat_get_irt - Retrieve the cell's interrupt table.
+ * @r_addr: The return buffer.
+ * @cell_num: The target cell.
+ *
+ * This PDC functin returns the actual interrupt table for the specified cell.
+ */
+int pdc_pat_get_irt(void *r_addr, unsigned long cell_num)
 {
-	return mem_pdc_call(PDC_TOD, PDC_TOD_WRITE, sec, usec);
+	int retval;
+
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_GET_PCI_ROUTING_TABLE,
+			      __pa(r_addr), cell_num);
+	spin_unlock_irq(&pdc_lock);
+
+	return retval;
 }
 
-#ifdef __LP64__
-int pdc_mem_mem_table(void *r_addr, void *tbl, unsigned long entries)
+/**
+ * pdc_pat_pd_get_addr_map - Retrieve information about memory address ranges.
+ * @actlen: The return buffer.
+ * @mem_addr: Pointer to the memory buffer.
+ * @count: The number of bytes to read from the buffer.
+ * @offset: The offset with respect to the beginning of the buffer.
+ *
+ */
+int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr, 
+			    unsigned long count, unsigned long offset)
 {
 	int retval;
+
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_PAT_PD, PDC_PAT_PD_GET_ADDR_MAP, __pa(pdc_result), 
+			      __pa(pdc_result2), count, offset);
+	*actual_len = pdc_result[0];
+	memcpy(mem_addr, pdc_result2, *actual_len);
+	spin_unlock_irq(&pdc_lock);
 
-	ASSERT_ALIGN(r_addr, 4);
-	ASSERT_ALIGN(tbl, 4);
-	retval = mem_pdc_call(PDC_MEM, PDC_MEM_TABLE, __pa(r_addr), __pa(tbl), entries);
-	convert_to_wide(r_addr);
 	return retval;
 }
 #endif
 
 
-static spinlock_t pdc_lock = SPIN_LOCK_UNLOCKED;
-
 /***************** 32-bit real-mode calls ***********/
 /* The struct below is used
  * to overlay real_stack (real2.S), preparing a 32-bit call frame.
@@ -364,17 +796,14 @@ struct narrow_stack {
 	/* in reality, there's nearly 8k of stack after this */
 };
 
-long real32_call(unsigned long fn, ...)
+static long real32_call(unsigned long fn, ...)
 {
 	va_list args;
-	unsigned long r, flags;
 	extern struct narrow_stack real_stack;
 	extern unsigned long real32_call_asm(unsigned int *,
 					     unsigned int *, 
 					     unsigned int);
 	
-	spin_lock_irqsave(&pdc_lock, flags);
-
 	va_start(args, fn);
 	real_stack.arg0 = va_arg(args, unsigned int);
 	real_stack.arg1 = va_arg(args, unsigned int);
@@ -391,11 +820,8 @@ long real32_call(unsigned long fn, ...)
 	real_stack.arg12 = va_arg(args, unsigned int);
 	real_stack.arg13 = va_arg(args, unsigned int);
 	va_end(args);
-	
-	r = real32_call_asm(&real_stack.sp, &real_stack.arg0, fn);
-	spin_unlock_irqrestore(&pdc_lock, flags);
 	
-	return r;
+	return real32_call_asm(&real_stack.sp, &real_stack.arg0, fn);
 }
 
 #ifdef __LP64__
@@ -421,17 +847,14 @@ struct wide_stack {
 	/* in reality, there's nearly 8k of stack after this */
 };
 
-long real64_call(unsigned long fn, ...)
+static long real64_call(unsigned long fn, ...)
 {
 	va_list args;
-	unsigned long r, flags;
 	extern struct wide_stack real_stack;
 	extern unsigned long real64_call_asm(unsigned long *,
 					     unsigned long *, 
 					     unsigned long);
     
-	spin_lock_irqsave(&pdc_lock, flags);
-
 	va_start(args, fn);
 	real_stack.arg0 = va_arg(args, unsigned long);
 	real_stack.arg1 = va_arg(args, unsigned long);
@@ -448,11 +871,8 @@ long real64_call(unsigned long fn, ...)
 	real_stack.arg12 = va_arg(args, unsigned long);
 	real_stack.arg13 = va_arg(args, unsigned long);
 	va_end(args);
-	
-	r = real64_call_asm(&real_stack.sp, &real_stack.arg0, fn);
-	spin_unlock_irqrestore(&pdc_lock, flags);
 	
-	return r;
+	return real64_call_asm(&real_stack.sp, &real_stack.arg0, fn);
 }
 
 #endif
Index: arch/parisc/kernel/inventory.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/inventory.c,v
retrieving revision 1.27
diff -u -p -r1.27 inventory.c
--- inventory.c	2001/03/02 10:31:49	1.27
+++ inventory.c	2001/03/29 07:57:51
@@ -7,7 +7,6 @@
 #include <asm/hardware.h>
 #include <asm/io.h>
 #include <asm/pdc.h>
-#include <asm/pdcpat.h>
 #include <asm/processor.h>
 #include <asm/page.h>
 
@@ -19,20 +18,16 @@
 
 int pdc_type = PDC_TYPE_ILLEGAL;
 
-static struct pdc_model model __attribute__ ((aligned(8)));
-#ifndef __LP64__
-static u8 iodc_data[32 * sizeof(long)] __attribute__ ((aligned(64)));
-static struct pdc_memory_map r_addr __attribute__ ((aligned(8)));
-#endif
-static unsigned long pdc_result[32] __attribute__ ((aligned(8)));
-static struct pdc_system_map_mod_info module_result  __attribute__ ((aligned(8)));
-static struct pdc_system_map_addr_info addr_result __attribute__ ((aligned(8)));
-static struct pdc_module_path module_path __attribute__ ((aligned(8)));
-
 void setup_pdc(void)
 {
 	long status;
 	unsigned int bus_id;
+	struct pdc_system_map_mod_info module_result;
+	struct pdc_module_path module_path;
+	struct pdc_model model;
+#ifdef __LP64__
+	struct pdc_pat_cell_num cell_info;
+#endif
 
 	/* Determine the pdc "type" used on this machine */
 
@@ -59,11 +54,11 @@ void setup_pdc(void)
 	 */
 
 #ifdef __LP64__
-	status = pdc_pat_cell_get_number(&pdc_result);
+	status = pdc_pat_cell_get_number(&cell_info);
 	if (status == PDC_RET_OK) {
-	    pdc_type = PDC_TYPE_PAT;
-	    printk("64 bit PDC PAT Box\n");
-	    return;
+		pdc_type = PDC_TYPE_PAT;
+		printk("64 bit PDC PAT Box\n");
+		return;
 	}
 #endif
 
@@ -166,12 +161,13 @@ void do_pagezero_memconfig(void)
 static int pat_query_module(ulong pcell_loc, ulong mod_index)
 {
 	pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
+	unsigned long bytecnt;
 	unsigned long temp;	/* 64-bit scratch value */
 	long status;		/* PDC return value status */
 	struct hp_device *dev;
 
 	/* return cell module (PA or Processor view) */
-	status = pdc_pat_cell_module(&pdc_result, pcell_loc, mod_index,
+	status = pdc_pat_cell_module(&bytecnt, pcell_loc, mod_index,
 				     PA_VIEW, &pa_pdc_cell);
 
 	if (status != PDC_RET_OK) {
@@ -254,7 +250,7 @@ static int pat_query_module(ulong pcell_
 
 static void do_pat_memconfig(void)
 {
-	struct pdc_pat_pd_addr_map_rtn r_addr;
+	unsigned long actual_len;
 	struct pdc_pat_pd_addr_map_entry mem_table[PAT_MAX_RANGES+1];
 	struct pdc_pat_pd_addr_map_entry *mtbl_ptr;
 	physmem_range_t *pmem_ptr;
@@ -266,10 +262,10 @@ static void do_pat_memconfig(void)
 	length = (unsigned long)(PAT_MAX_RANGES + 1)
 				* sizeof(struct pdc_pat_pd_addr_map_entry);
 
-	status = pdc_pat_pd_get_addr_map(&r_addr,mem_table,length,0L);
+	status = pdc_pat_pd_get_addr_map(&actual_len, mem_table, length, 0L);
 
 	if ((status != PDC_RET_OK)
-	    || ((r_addr.actual_len % sizeof(struct pdc_pat_pd_addr_map_entry)) != 0)) {
+	    || ((actual_len % sizeof(struct pdc_pat_pd_addr_map_entry)) != 0)) {
 
 		/* The above pdc call shouldn't fail, but, just in
 		 * case, just use the PAGE0 info.
@@ -280,7 +276,7 @@ static void do_pat_memconfig(void)
 		return;
 	}
 
-	entries = r_addr.actual_len / sizeof(struct pdc_pat_pd_addr_map_entry);
+	entries = actual_len / sizeof(struct pdc_pat_pd_addr_map_entry);
 
 	if (entries > PAT_MAX_RANGES) {
 		printk("This Machine has more memory ranges than we support!\n");
@@ -319,28 +315,25 @@ static void do_pat_memconfig(void)
 
 static int do_pat_inventory(void)
 {
-	ulong mod_index = 0;
 	int status;
-	ulong cell_num;
-	ulong pcell_loc;
+	ulong mod_index = 0;
+	struct pdc_pat_cell_num cell_info;
 
 	/*
 	** Note:  Prelude (and it's successors: Lclass, A400/500) only
 	**        implement PDC_PAT_CELL sub-options 0 and 2.
 	*/
-	status = pdc_pat_cell_get_number(&pdc_result);
+	status = pdc_pat_cell_get_number(&cell_info);
 	if (status != PDC_RET_OK) {
 		return 0;
 	}
 
-	cell_num = pdc_result[0];	/* Cell number call was made from */
-	pcell_loc = pdc_result[1];	/* Physical location of this cell */
-
 #ifdef DEBUG_PAT
-	printk("CELL_GET_NUMBER: 0x%lx 0x%lx\n", cell_num, pcell_loc);
+	printk("CELL_GET_NUMBER: 0x%lx 0x%lx\n", cell_info.cell_num, 
+	       cell_info.cell_loc);
 #endif
 
-	while (PDC_RET_OK == pat_query_module(pcell_loc, mod_index)) {
+	while (PDC_RET_OK == pat_query_module(cell_info.cell_loc, mod_index)) {
 		mod_index++;
 	}
 
@@ -441,6 +434,10 @@ int do_legacy_inventory(void)
 	int status;
 	unsigned int hw_type;
 	unsigned int func;
+	unsigned long bytecnt;
+	struct pdc_module_path module_path;
+	struct pdc_memory_map r_addr;
+	u8 iodc_data[32 * sizeof(long)];
 
 	/* This is undocumented at the time of writing, but basically 
 	** we're setting up mod_path so that bc[0..4]=0xff, and step
@@ -471,7 +468,7 @@ int do_legacy_inventory(void)
 			continue;
 		}
 
-		status = pdc_iodc_read(&pdc_result, (void *) r_addr.hpa, 0,
+		status = pdc_iodc_read(&bytecnt, (void *)r_addr.hpa, 0,
 				       &iodc_data, 32);
 		if (status != PDC_RET_OK)
 			continue;
@@ -617,6 +614,9 @@ static int do_system_map_inventory(void)
 	int i, j, num;
 	long status;
 	struct hp_device *hp_device;
+	struct pdc_system_map_mod_info module_result;
+	struct pdc_system_map_addr_info addr_result;
+	struct pdc_module_path module_path;
 
 	/* So the idea here is to simply try one SYSTEM_MAP call.  If 
 	** that one works, great, otherwise do it another way 
Index: arch/parisc/kernel/iosapic.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/iosapic.c,v
retrieving revision 1.22
diff -u -p -r1.22 iosapic.c
--- iosapic.c	2001/03/02 10:31:49	1.22
+++ iosapic.c	2001/03/29 07:57:51
@@ -169,7 +169,6 @@
 
 #include <asm/byteorder.h>	/* get in-line asm for swab */
 #include <asm/pdc.h>
-#include <asm/pdcpat.h>
 #include <asm/page.h>
 #include <asm/segment.h>
 #include <asm/system.h>
@@ -327,25 +326,22 @@ static size_t irt_num_entry;
 static int __init /* return number of entries as success/fail flag */
 iosapic_load_irt(unsigned long cell_num, struct irt_entry **irt)
 {
-	struct pdc_pat_io_num pdc_io_num; /* PDC return block */
 	long status;              /* PDC return value status */
 	struct irt_entry *table = NULL;  /* start of interrupt routing tbl */
 	unsigned long num_entries = 0UL;
 
 	ASSERT(NULL != irt);
-	/* FIXME ASSERT(((&pdc_io_num) & (0x3f)) == 0);  enforce 32-byte alignment */
 
 	if (is_pdc_pat()) {
 
 		/* Use pat pdc routine to get interrupt routing table size */
 		DBG(KERN_DEBUG "calling get_irt_size\n");
-		status = pdc_pat_get_irt_size( &pdc_io_num, cell_num);
+		status = pdc_pat_get_irt_size(&num_entries, cell_num);
 		DBG(KERN_DEBUG "get_irt_size: %ld\n", status);
 
 		ASSERT(status == PDC_RET_OK);
 
 		/* save the number of entries in the table */
-		num_entries = pdc_io_num.num;
 		ASSERT(0UL != num_entries);
 
 		/*
@@ -377,7 +373,7 @@ iosapic_load_irt(unsigned long cell_num,
 		return 0;
 	}
 
-	status = pdc_pci_irt_size( (void *)&pdc_io_num,
+	status = pdc_pci_irt_size(&num_entries,
 			/* elroy HPA (really a NOP) */ 0);
 	DBG(KERN_WARNING "pdc_pci_irt_size: %ld\n", status);
 
@@ -386,7 +382,6 @@ iosapic_load_irt(unsigned long cell_num,
 		return 0;
 	}
 
-	num_entries = pdc_io_num.num;
 	ASSERT(0UL != num_entries);
 
 	table = IOSAPIC_KALLOC(struct irt_entry, num_entries);
@@ -395,7 +390,7 @@ iosapic_load_irt(unsigned long cell_num,
 		return 0;
 	}
 
-	status = pdc_pci_irt( (void *) &pdc_io_num,
+	status = pdc_pci_irt(num_entries,
 			(void *) NULL, /* Elroy HPA - not used */
 			(void *) table);
 
Index: arch/parisc/kernel/lba_pci.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/lba_pci.c,v
retrieving revision 1.24
diff -u -p -r1.24 lba_pci.c
--- lba_pci.c	2001/03/11 07:05:58	1.24
+++ lba_pci.c	2001/03/29 07:57:52
@@ -42,7 +42,6 @@
 #include <asm/byteorder.h>
 #include <asm/irq.h>		/* for struct irq_region support */
 #include <asm/pdc.h>
-#include <asm/pdcpat.h>
 #include <asm/page.h>
 #include <asm/segment.h>
 #include <asm/system.h>
@@ -277,11 +276,6 @@ static u32 lba_t32;
 #define ROPES_PER_SBA	8
 #define LBA_NUM(x)    ((((unsigned long) x) >> 13) & (ROPES_PER_SBA-1))
 
-#ifdef __LP64__
-/* PDC_PAT */
-static  unsigned long pdc_result[32] __attribute__ ((aligned (8))) = {0,0,0,0};
-#endif
-
 /*
 ** One time initialization to let the world know the LBA was found.
 ** This is the only routine which is NOT static.
@@ -1040,6 +1034,7 @@ static struct pci_port_ops lba_pat_port_
 static void
 lba_pat_resources( struct hp_device *d, struct lba_device *lba_dev)
 {
+	unsigned long bytecnt;
 	pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;	/* PA_VIEW */
 #ifdef DONT_NEED_THIS_FOR_ASTRO
 	pdc_pat_cell_mod_maddr_block_t io_pdc_cell;	/* IO_VIEW */
@@ -1050,12 +1045,12 @@ lba_pat_resources( struct hp_device *d, 
 	int i;
 
 	/* return cell module (IO view) */
-	status = pdc_pat_cell_module(& pdc_result, d->pcell_loc, d->mod_index,
+	status = pdc_pat_cell_module(&bytecnt, d->pcell_loc, d->mod_index,
 				PA_VIEW, & pa_pdc_cell);
 	pa_count = pa_pdc_cell.mod[1];
 
 #ifdef DONT_NEED_THIS_FOR_ASTRO
-	status |= pdc_pat_cell_module(& pdc_result, d->pcell_loc, d->mod_index,
+	status |= pdc_pat_cell_module(&bytecnt, d->pcell_loc, d->mod_index,
 				IO_VIEW, & io_pdc_cell);
 	io_count = io_pdc_cell.mod[1];
 #endif
Index: arch/parisc/kernel/led.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/led.c,v
retrieving revision 1.15
diff -u -p -r1.15 led.c
--- led.c	2001/02/24 02:39:18	1.15
+++ led.c	2001/03/29 07:57:52
@@ -35,6 +35,7 @@
 #include <asm/hardware.h>
 #include <asm/param.h>		/* HZ */
 #include <asm/led.h>
+#include <asm/pdc.h>
 
 /* The control of the LEDs and LCDs on PARISC-machines have to be done 
    completely in software. The necessary calculations are done during every
@@ -486,7 +487,7 @@ int lcd_print( char *str )
 
 int __init led_init(void)
 {
-	long pdc_result[32];
+	struct pdc_chassis_info chassis_info;
 
 	/* Work around the buggy PDC of KittyHawk-machines */
 	switch (CPU_HVERSION) {
@@ -503,26 +504,26 @@ int __init led_init(void)
 		break;
 	}
 
-	/* initialize pdc_result, so we can check the return values of pdc_chassis_info() */
-	pdc_result[0] = pdc_result[1] = 0;
+	/* initialize raddr, so we can check the return values of pdc_chassis_info() */
+	chassis_info.actcnt = chassis_info.maxcnt = 0;
 
-	if (pdc_chassis_info(&pdc_result, &lcd_info, sizeof(lcd_info)) == PDC_OK) {
+	if (pdc_chassis_info(&chassis_info, &lcd_info, sizeof(lcd_info)) == PDC_OK) {
 		pr_debug("%s: chassis info: model=%d (%s), "
-			 "lcd_width=%d, cmd_delay=%u, ret0=%ld, ret1=%ld\n",
+			 "lcd_width=%d, cmd_delay=%u, actcnt=%ld, maxcnt=%ld\n",
 		         __FUNCTION__,
 			 lcd_info.model, 
 			 (lcd_info.model==DISPLAY_MODEL_LCD) ? "LCD" :
 			  (lcd_info.model==DISPLAY_MODEL_LASI) ? "LED" : "unknown",  
 			 lcd_info.lcd_width, lcd_info.min_cmd_delay, 
-			 pdc_result[0], pdc_result[1]);
+			 chassis_info.actcnt, chassis_info.maxcnt);
 
 		/* check the results. Some machines have a buggy PDC */
-		if (pdc_result[0] <= 0 || pdc_result[0] != pdc_result[1])
+		if (chassis_info.actcnt <= 0 || chassis_info.actcnt != chassis_info.maxcnt)
 			goto not_found;
 
 		switch (lcd_info.model) {
 		case DISPLAY_MODEL_LCD:		/* LCD display */
-			if (pdc_result[0] < 
+			if (chassis_info.actcnt < 
 			    (unsigned long)&lcd_info._pad - (unsigned long)&lcd_info - 1)
 				 goto not_found;
 			pr_debug("%s: min_cmd_delay = %d uS\n",
@@ -533,7 +534,7 @@ int __init led_init(void)
 			goto not_found;
 
 		case DISPLAY_MODEL_LASI:	/* Lasi style 8 bit LED display */
-			if (pdc_result[0] != 8 && pdc_result[0] != 32)
+			if (chassis_info.actcnt != 8 && chassis_info.actcnt != 32)
 				goto not_found;
 			break;
 
Index: arch/parisc/kernel/pdc_cons.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/pdc_cons.c,v
retrieving revision 1.24
diff -u -p -r1.24 pdc_cons.c
--- pdc_cons.c	2001/03/08 13:30:33	1.24
+++ pdc_cons.c	2001/03/29 07:57:52
@@ -11,89 +11,10 @@
 #include <asm/system.h>
 #include <asm/pdc.h>	/* for iodc_call() proto and friends */
 
-static int __attribute__((aligned(8)))   iodc_retbuf[32];
-static char __attribute__((aligned(64))) iodc_dbuf[4096];
-
-/*
- * pdc_putc:
- * Console character print using IODC.
- *
- * Note that only these special chars are architected for console IODC io:
- * BEL, BS, CR, and LF. Others are passed through.
- * Since the HP console requires CR+LF to perform a 'newline', we translate
- * "\n" to "\r\n".
- */
-
-static int posx;	/* for simple TAB-Simulation... */
-
-/* XXX Should we spinlock posx usage */
-
-void pdc_putc(unsigned char c)
-{
-	unsigned int n;
-
-	switch (c) {
-	case '\n':
-		iodc_dbuf[0] = '\r'; 
-		iodc_dbuf[1] = '\n';
-               	n = 2;
-               	posx = 0;
-		break;
-	case '\t':
-		pdc_putc(' ');
-		while (posx & 7) 	/* expand TAB */
-			pdc_putc(' ');
-		return;		/* return since IODC can't handle this */
-	case '\b':
-		posx-=2;		/* BS */
-	default:
-		iodc_dbuf[0] = c;
-		n = 1;
-		posx++;
-		break;
-	}
-	{
-		real32_call(PAGE0->mem_cons.iodc_io,
-			(unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
-			PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers),
-			__pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0);
-	}
-}
-
 static void pdc_console_write(struct console *co, const char *s, unsigned count)
 {
 	while(count--)
-		pdc_putc(*s++);
-}
-
-int pdc_console_wait_key(struct console *co)
-{
-	int ch = 'X';
-	int status;
-
-	/* Bail if no console input device. */
-	if (!PAGE0->mem_kbd.iodc_io)
-		return 0;
-	
-	/* wait for a keyboard (rs232)-input */
-	do {
-		unsigned long flags;
-
-		save_flags(flags);
-		cli();
-		status = real32_call(PAGE0->mem_kbd.iodc_io,
-			(unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN,
-			PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers),
-			__pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
-		restore_flags(flags);
-		ch = *iodc_dbuf;	/* save the character directly to ch */
-	} while (*iodc_retbuf == 0);	/* wait for a key */
-	return ch;
-}
-
-int pdc_getc(void)
-{
-	return pdc_console_wait_key(NULL);
+		pdc_iodc_putc(*s++);
 }
 
 static int pdc_console_setup(struct console *co, char *options)
@@ -106,7 +27,7 @@ static struct console pdc_cons = {
 	write:		pdc_console_write,
 	read:		NULL,
 	device:		NULL, 
-	wait_key:	pdc_console_wait_key,
+	wait_key:	NULL,
 	unblank:	NULL,
 	setup:		pdc_console_setup,
 	flags:		CON_BOOT|CON_PRINTBUFFER|CON_ENABLED,  // |CON_CONSDEV,
Index: arch/parisc/kernel/process.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/process.c,v
retrieving revision 1.34
diff -u -p -r1.34 process.c
--- process.c	2001/02/23 07:02:01	1.34
+++ process.c	2001/03/29 07:57:52
@@ -113,15 +113,12 @@ void machine_restart(char *cmd)
 		** memory self tests. (Not implemented yet)
 		*/
 		if (ftc_bitmap) {
-			mem_pdc_call( PDC_BROADCAST_RESET,
-				PDC_DO_FIRM_TEST_RESET, PDC_FIRM_TEST_MAGIC,
-				ftc_bitmap);
+			pdc_do_firm_test_reset(ftc_bitmap);
 		}
 #endif
 
 		/* "Normal" system reset */
-		(void) mem_pdc_call(PDC_BROADCAST_RESET, PDC_DO_RESET,
-			0L, 0L, 0L);
+		pdc_do_reset();
 
 		/* Nope...box should reset with just CMD_RESET now */
 		gsc_writel(CMD_RESET, COMMAND_GLOBAL);
Index: arch/parisc/kernel/setup.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/setup.c,v
retrieving revision 1.80
diff -u -p -r1.80 setup.c
--- setup.c	2001/03/22 06:46:32	1.80
+++ setup.c	2001/03/29 07:57:52
@@ -60,7 +60,6 @@
 #include <asm/machdep.h>	/* for pa7300lc_init() proto */
 
 #include <asm/irq.h>		/* for struct irq_region */
-#include <asm/pdcpat.h>		/* for PA_VIEW PDC_PAT_CPU_GET_NUMBER etc */
 
 #include <linux/proc_fs.h>
 
@@ -128,12 +127,13 @@ cpu_driver_callback(struct hp_device *d,
 
 #ifdef __LP64__
 	if (is_pdc_pat()) {
-		unsigned long pdc_result[32] __attribute__ ((aligned (8))) = {0,0,0,0};
 		ulong status;
+		unsigned long bytecnt;
 	        pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
+		struct pdc_pat_cpu_num cpu_info;
 
-		status = pdc_pat_cell_module(& pdc_result, d->pcell_loc,
-			d->mod_index, PA_VIEW, & pa_pdc_cell);
+		status = pdc_pat_cell_module(&bytecnt, d->pcell_loc,
+			d->mod_index, PA_VIEW, &pa_pdc_cell);
 
 		ASSERT(PDC_RET_OK == status);
 
@@ -145,21 +145,20 @@ cpu_driver_callback(struct hp_device *d,
 		txn_addr = pa_pdc_cell.mod[0];   /* id_eid for IO sapic */
 
 		/* get the cpu number */
-		status = mem_pdc_call( PDC_PAT_CPU, PDC_PAT_CPU_GET_NUMBER,
-				__pa(& pdc_result), d->hpa);
+		status = pdc_pat_cpu_get_number(&cpu_info, d->hpa);
 
 		ASSERT(PDC_RET_OK == status);
 
-		if(pdc_result[0] >= NR_CPUS) {
+		if(cpu_info.cpu_num >= NR_CPUS) {
 			printk(KERN_WARNING "IGNORING CPU at 0x%p,"
 				" cpu_slot_id > NR_CPUS"
 				" (%ld > %d)\n",
-				d->hpa, pdc_result[0], NR_CPUS);
+				d->hpa, cpu_info.cpu_num, NR_CPUS);
 			/* Ignore CPU since it will only crash */
 			boot_cpu_data.cpu_count--;
 			return(1);
 		} else {
-			cpuid = pdc_result[0];
+			cpuid = cpu_info.cpu_num;
 		}
 	} else
 #endif
@@ -243,14 +242,14 @@ void __init collect_boot_cpu_data(void)
 #undef p
 
 	if(pdc_model_versions(&boot_cpu_data.pdc.versions, 0)==0)
-		printk("vers	%08lx\n", boot_cpu_data.pdc.versions.cpuid);
+		printk("vers	%08lx\n", boot_cpu_data.pdc.versions);
 
 	if(pdc_model_cpuid(&boot_cpu_data.pdc.cpuid)==0)
-		printk("cpuid	%08lx\n", boot_cpu_data.pdc.cpuid.cpuid);
+		printk("cpuid	%08lx\n", boot_cpu_data.pdc.cpuid);
 
 	printk("CPUID	vers %ld rev %ld\n",
-		(boot_cpu_data.pdc.cpuid.cpuid >> 5) & 127,
-		boot_cpu_data.pdc.cpuid.cpuid & 31);
+		(boot_cpu_data.pdc.cpuid >> 5) & 127,
+		boot_cpu_data.pdc.cpuid & 31);
 
 	if (pdc_model_sysmodel(boot_cpu_data.pdc.sys_model_name)==0)
 		printk("model	%s\n",boot_cpu_data.pdc.sys_model_name);
@@ -282,31 +281,22 @@ void __init collect_boot_cpu_data(void)
 int
 init_per_cpu(int cpuid)
 {
-	unsigned long pdc_result[32] __attribute__ ((aligned (8)));
-	unsigned long ccr;
 	int ret;
+	struct pdc_coproc_cfg coproc_cfg;
 
-	/*
-	** ret[0] == Functional Coprocessors
-	** ret[1] == Coprocessors Present
-	** ret[15] == FP test status
-	** ret[17] == Revision
-	** ret[18] == Model
-	*/
-	ret = pdc_coproc_cfg(&pdc_result);
-	ccr = pdc_result[0];
+	ret = pdc_coproc_cfg(&coproc_cfg);
 
-	if(ret >= 0 && ccr) {
-		mtctl(ccr, 10);  /* 10 == Coprocessor Control Reg */
+	if(ret >= 0 && coproc_cfg.ccr_functional) {
+		mtctl(coproc_cfg.ccr_functional, 10);  /* 10 == Coprocessor Control Reg */
 
 		/* FWIW, FP rev/model is a more accurate way to determine
 		** CPU type. CPU rev/model has some ambiguous cases.
 		*/
-		cpu_data[cpuid].fp_rev = pdc_result[17];
-		cpu_data[cpuid].fp_model = pdc_result[18];
+		cpu_data[cpuid].fp_rev = coproc_cfg.revision;
+		cpu_data[cpuid].fp_model = coproc_cfg.model;
 
 		printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
-			cpuid, pdc_result[17], pdc_result[18]);
+			cpuid, coproc_cfg.revision, coproc_cfg.model);
 
 		/*
 		** store status register to stack (hopefully aligned)
@@ -316,11 +306,11 @@ init_per_cpu(int cpuid)
 
 	} else {
 		printk(KERN_WARNING  "WARNING: No FP CoProcessor?!"
-			" (pdc_result[0] == 0x%lx, expected 0xc0)\n"
+			" (coproc_cfg.ccr_functional == 0x%lx, expected 0xc0)\n"
 #ifdef __LP64__
 			"Halting Machine - FP required\n"
 #endif
-			,ccr);
+			, coproc_cfg.ccr_functional);
 #ifdef __LP64__
 		mdelay(100);	/* previous chars get pushed to console */
 		panic("FP CoProc not reported");
@@ -405,6 +395,8 @@ void __init setup_arch(char **cmdline_p)
 	"32"
 #endif
 	"-bit Kernel has started...\n");
+
+	pdc_console_init();
 
 #ifdef CONFIG_PDC_NARROW
 	printk("Kernel is using PDC in 32-bit mode.\n");
Index: arch/parisc/kernel/time.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/time.c,v
retrieving revision 1.10
diff -u -p -r1.10 time.c
--- time.c	2001/01/24 23:59:51	1.10
+++ time.c	2001/03/29 07:57:52
@@ -37,7 +37,6 @@ extern rwlock_t xtime_lock;
 
 static long clocktick;	/* timer cycles per tick */
 static long halftick;
-static struct pdc_tod tod_data __attribute__((aligned(8)));
 
 void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
@@ -163,6 +162,7 @@ do_settimeofday (struct timeval *tv)
 void __init time_init(void)
 {
 	unsigned long next_tick;
+	static struct pdc_tod tod_data;
 
 	clocktick = (100 * PAGE0->mem_10msec) / HZ;
 	halftick = clocktick / 2;
Index: drivers/char/genrtc.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/char/genrtc.c,v
retrieving revision 1.5
diff -u -p -r1.5 genrtc.c
--- genrtc.c	2001/02/08 06:20:15	1.5
+++ genrtc.c	2001/03/29 07:57:53
@@ -102,7 +102,7 @@ static const unsigned short int __mon_yd
 
 static int get_hw_time(struct rtc_time *wtime)
 {
-	struct pdc_tod tod_data __attribute__((aligned(8)));
+	struct pdc_tod tod_data;
 	long int days, rem, y;
 	const unsigned short int *ip;
 
Index: drivers/net/lasi_82596.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/net/lasi_82596.c,v
retrieving revision 1.15
diff -u -p -r1.15 lasi_82596.c
--- lasi_82596.c	2001/01/25 00:01:15	1.15
+++ lasi_82596.c	2001/03/29 07:57:53
@@ -1160,7 +1160,7 @@ static int __init i82596_probe(struct ne
 	if (!dev->base_addr || !dev->irq)
 	    return -ENODEV;
 
-	if (!pdc_lan_station_id( (char*)&eth_addr, (void*)dev->base_addr)) {
+	if (pdc_lan_station_id( (char*)&eth_addr, (void*)dev->base_addr)) {
 	    for(i=0;i<6;i++)
 		eth_addr[i] = gsc_readb(LAN_PROM_ADDR+i);
 	    printk("82596.c: MAC of HP700 LAN blindely read from the prom!\n");
Index: drivers/scsi/zalon7xx.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/scsi/zalon7xx.c,v
retrieving revision 1.5
diff -u -p -r1.5 zalon7xx.c
--- zalon7xx.c	2001/03/04 19:27:05	1.5
+++ zalon7xx.c	2001/03/29 07:57:57
@@ -79,6 +79,14 @@ int zalon7xx_detect(Scsi_Host_Template *
 	return (hosts_used != 0);
 }
 
+#if 0
+/* FIXME:
+ * Is this function dead code? or is someone planning on using it in the
+ * future.  The clock = (int) pdc_result[16] does not look correct to
+ * me ... I think it should be iodc_data[16].  Since this cause a compile
+ * error with the new encapsulated PDC, I'm not compiling in this function.
+ * - RB
+ */
 /* poke SCSI clock out of iodc data */
 static int 
 lasi_scsi_clock(void * hpa, int defaultclock)
@@ -96,6 +104,7 @@ lasi_scsi_clock(void * hpa, int defaultc
 	printk(KERN_DEBUG __FUNCTION__ ": SCSI clock %d\n", clock);
  	return clock;
 }
+#endif
 
 static int __init
 zalon_scsi_callback(struct hp_device *d, struct pa_iodc_driver *dri)
Index: drivers/video/sti/sticore.h
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/video/sti/sticore.h,v
retrieving revision 1.7
diff -u -p -r1.7 sticore.h
--- sticore.h	2001/02/18 22:24:40	1.7
+++ sticore.h	2001/03/29 07:57:57
@@ -46,7 +46,7 @@
 
 #define STI_CALL(func, flags, inptr, outptr, glob_cfg) \
 	({	 						\
-		real32_call( func, (unsigned long)STI_PTR(flags), \
+		pdc_sti_call( func, (unsigned long)STI_PTR(flags), \
 				    STI_PTR(inptr), STI_PTR(outptr), \
 				    glob_cfg); \
 	})
Index: include/asm-parisc/pdc.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/pdc.h,v
retrieving revision 1.28
diff -u -p -r1.28 pdc.h
--- pdc.h	2001/03/22 16:24:19	1.28
+++ pdc.h	2001/03/29 07:57:59
@@ -178,6 +178,184 @@ compatibility */
 #define OSTAT_RUN		      6
 #define OSTAT_ON		       7
 
+#ifdef __LP64__
+/* PDC PAT CELL */
+#define PDC_PAT_CELL           	64L   /* Interface for gaining and 
+                                         * manipulatin g cell state within PD */
+#define PDC_PAT_CELL_GET_NUMBER    0L   /* Return Cell number */
+#define PDC_PAT_CELL_GET_INFO      1L   /* Returns info about Cell */
+#define PDC_PAT_CELL_MODULE        2L   /* Returns info about Module */
+#define PDC_PAT_CELL_SET_ATTENTION 9L   /* Set Cell Attention indicator */
+#define PDC_PAT_CELL_NUMBER_TO_LOC 10L   /* Cell Number -> Location */
+#define PDC_PAT_CELL_WALK_FABRIC   11L   /* Walk the Fabric */
+#define PDC_PAT_CELL_GET_RDT_SIZE  12L   /* Return Route Distance Table Sizes */
+#define PDC_PAT_CELL_GET_RDT       13L   /* Return Route Distance Tables */
+#define PDC_PAT_CELL_GET_LOCAL_PDH_SZ 14L /* Read Local PDH Buffer Size */
+#define PDC_PAT_CELL_SET_LOCAL_PDH    15L  /* Write Local PDH Buffer */
+#define PDC_PAT_CELL_GET_REMOTE_PDH_SZ 16L /* Return Remote PDH Buffer Size */
+#define PDC_PAT_CELL_GET_REMOTE_PDH 17L /* Read Remote PDH Buffer */
+#define PDC_PAT_CELL_GET_DBG_INFO   128L  /* Return DBG Buffer Info */
+#define PDC_PAT_CELL_CHANGE_ALIAS   129L  /* Change Non-Equivalent Alias Chacking */
+
+/*
+** Arg to PDC_PAT_CELL_MODULE memaddr[4]
+**
+** Addresses on the Merced Bus != all Runway Bus addresses.
+** This is intended for programming SBA/LBA chips range registers.
+*/
+#define IO_VIEW      0UL
+#define PA_VIEW      1UL
+
+/* PDC_PAT_CELL_MODULE entity type values */
+#define	PAT_ENTITY_CA	0	/* central agent */
+#define	PAT_ENTITY_PROC	1	/* processor */
+#define	PAT_ENTITY_MEM	2	/* memory controller */
+#define	PAT_ENTITY_SBA	3	/* system bus adapter */
+#define	PAT_ENTITY_LBA	4	/* local bus adapter */
+#define	PAT_ENTITY_PBC	5	/* processor bus converter */
+#define	PAT_ENTITY_XBC	6	/* crossbar fabric connect */
+#define	PAT_ENTITY_RC	7	/* fabric interconnect */
+
+/* PDC_PAT_CELL_MODULE address range type values */
+#define PAT_PBNUM           0         /* PCI Bus Number */
+#define PAT_LMMIO           1         /* < 4G MMIO Space */
+#define PAT_GMMIO           2         /* > 4G MMIO Space */
+#define PAT_NPIOP           3         /* Non Postable I/O Port Space */
+#define PAT_PIOP            4         /* Postable I/O Port Space */
+#define PAT_AHPA            5         /* Addional HPA Space */
+#define PAT_UFO             6         /* HPA Space (UFO for Mariposa) */
+#define PAT_GNIP            7         /* GNI Reserved Space */
+
+
+/* PDC PAT CHASSIS LOG */
+
+#define PDC_PAT_CHASSIS_LOG		65L /* Platform logging & forward
+					    ** progress functions */
+#define PDC_PAT_CHASSIS_WRITE_LOG    	0L /* Write Log Entry */
+#define PDC_PAT_CHASSIS_READ_LOG     	1L /* Read  Log Entry */
+
+/* PDC PAT CPU  */
+
+#define PDC_PAT_CPU                	67L /* Interface to CPU configuration
+                                        	* within the protection domain */
+#define PDC_PAT_CPU_INFO            	0L /* Return CPU config info */
+#define PDC_PAT_CPU_DELETE          	1L /* Delete CPU */
+#define PDC_PAT_CPU_ADD             	2L /* Add    CPU */
+#define PDC_PAT_CPU_GET_NUMBER      	3L /* Return CPU Number */
+#define PDC_PAT_CPU_GET_HPA         	4L /* Return CPU HPA */
+#define PDC_PAT_CPU_STOP            	5L /* Stop   CPU */
+#define PDC_PAT_CPU_RENDEZVOUS      	6L /* Rendezvous CPU */
+#define PDC_PAT_CPU_GET_CLOCK_INFO  	7L /* Return CPU Clock info */
+#define PDC_PAT_CPU_GET_RENDEZVOUS_STATE 8L /* Return Rendezvous State */
+#define PDC_PAT_CPU_PLUNGE_FABRIC 	128L /* Plunge Fabric */
+#define PDC_PAT_CPU_UPDATE_CACHE_CLEANSING 129L /* Manipulate Cache 
+                                                 * Cleansing Mode */
+/*  PDC PAT EVENT */
+
+#define PDC_PAT_EVENT              	68L /* Interface to Platform Events */
+#define PDC_PAT_EVENT_GET_CAPS     	0L /* Get Capabilities */
+#define PDC_PAT_EVENT_SET_MODE     	1L /* Set Notification Mode */
+#define PDC_PAT_EVENT_SCAN         	2L /* Scan Event */
+#define PDC_PAT_EVENT_HANDLE       	3L /* Handle Event */
+#define PDC_PAT_EVENT_GET_NB_CALL  	4L /* Get Non-Blocking call Args */
+
+/*  PDC PAT HPMC */
+
+#define PDC_PAT_HPMC               70L /* Cause processor to go into spin
+				       ** loop, and wait for wake up from
+				       ** Monarch Processor */
+#define PDC_PAT_HPMC_RENDEZ_CPU     0L /* go into spin loop */
+#define PDC_PAT_HPMC_SET_PARAMS     1L /* Allows OS to specify intr which PDC 
+                                        * will use to interupt OS during machine
+                                        * check rendezvous */
+
+/* parameters for PDC_PAT_HPMC_SET_PARAMS: */
+#define HPMC_SET_PARAMS_INTR 	    1L /* Rendezvous Interrupt */
+#define HPMC_SET_PARAMS_WAKE 	    2L /* Wake up processor */
+
+/*  PDC PAT IO */
+
+#define PDC_PAT_IO                  71L /* On-line services for I/O modules */
+#define PDC_PAT_IO_GET_SLOT_STATUS   	5L /* Get Slot Status Info*/
+#define PDC_PAT_IO_GET_LOC_FROM_HARDWARE 6L /* Get Physical Location from */
+                                            /* Hardware Path */
+#define PDC_PAT_IO_GET_HARDWARE_FROM_LOC 7L /* Get Hardware Path from 
+                                             * Physical Location */
+#define PDC_PAT_IO_GET_PCI_CONFIG_FROM_HW 11L /* Get PCI Configuration
+                                               * Address from Hardware Path */
+#define PDC_PAT_IO_GET_HW_FROM_PCI_CONFIG 12L /* Get Hardware Path 
+                                               * from PCI Configuration Address */
+#define PDC_PAT_IO_READ_HOST_BRIDGE_INFO 13L  /* Read Host Bridge State Info */
+#define PDC_PAT_IO_CLEAR_HOST_BRIDGE_INFO 14L /* Clear Host Bridge State Info*/
+#define PDC_PAT_IO_GET_PCI_ROUTING_TABLE_SIZE 15L /* Get PCI INT Routing Table 
+                                                   * Size */
+#define PDC_PAT_IO_GET_PCI_ROUTING_TABLE  16L /* Get PCI INT Routing Table */
+#define PDC_PAT_IO_GET_HINT_TABLE_SIZE 	17L /* Get Hint Table Size */
+#define PDC_PAT_IO_GET_HINT_TABLE   	18L /* Get Hint Table */
+#define PDC_PAT_IO_PCI_CONFIG_READ  	19L /* PCI Config Read */
+#define PDC_PAT_IO_PCI_CONFIG_WRITE 	20L /* PCI Config Write */
+#define PDC_PAT_IO_GET_NUM_IO_SLOTS 	21L /* Get Number of I/O Bay Slots in 
+                                       		  * Cabinet */
+#define PDC_PAT_IO_GET_LOC_IO_SLOTS 	22L /* Get Physical Location of I/O */
+                                   		     /* Bay Slots in Cabinet */
+#define PDC_PAT_IO_BAY_STATUS_INFO  	28L /* Get I/O Bay Slot Status Info */
+#define PDC_PAT_IO_GET_PROC_VIEW        29L /* Get Processor view of IO address */
+#define PDC_PAT_IO_PROG_SBA_DIR_RANGE   30L /* Program directed range */
+
+/* PDC PAT MEM */
+
+#define PDC_PAT_MEM             	72L /* Manage memory page deallocation */
+#define PDC_PAT_MEM_PD_INFO     	0L /* Return PDT info for PD       */
+#define PDC_PAT_MEM_PD_CLEAR    	1L /* Clear PDT for PD             */
+#define PDC_PAT_MEM_PD_READ     	2L /* Read PDT entries for PD      */
+#define PDC_PAT_MEM_PD_RESET    	3L /* Reset clear bit for PD       */
+#define PDC_PAT_MEM_CELL_INFO   	5L /* Return PDT info For Cell     */
+#define PDC_PAT_MEM_CELL_CLEAR  	6L /* Clear PDT For Cell           */
+#define PDC_PAT_MEM_CELL_READ   	7L /* Read PDT entries For Cell    */
+#define PDC_PAT_MEM_CELL_RESET  	8L /* Reset clear bit For Cell     */
+#define PDC_PAT_MEM_SETGM	  	9L /* Set Golden Memory value      */
+#define PDC_PAT_MEM_ADD_PAGE    	10L /* ADDs a page to the cell      */
+#define PDC_PAT_MEM_ADDRESS     	11L /* Get Physical Location From   */
+                                    		 /* Memory Address               */
+#define PDC_PAT_MEM_GET_TXT_SIZE   	12L /* Get Formatted Text Size   */
+#define PDC_PAT_MEM_GET_PD_TXT     	13L /* Get PD Formatted Text     */
+#define PDC_PAT_MEM_GET_CELL_TXT   	14L /* Get Cell Formatted Text   */
+#define PDC_PAT_MEM_RD_STATE_INFO  	15L /* Read Mem Module State Info*/
+#define PDC_PAT_MEM_CLR_STATE_INFO 	16L /*Clear Mem Module State Info*/
+#define PDC_PAT_MEM_CLEAN_RANGE    	128L /*Clean Mem in specific range*/
+#define PDC_PAT_MEM_GET_TBL_SIZE   	131L /* Get Memory Table Size     */
+#define PDC_PAT_MEM_GET_TBL        	132L /* Get Memory Table          */
+
+/* PDC PAT NVOLATILE */
+
+#define PDC_PAT_NVOLATILE          	73L /* Access Non-Volatile Memory */
+#define PDC_PAT_NVOLATILE_READ      	0L /* Read Non-Volatile Memory   */
+#define PDC_PAT_NVOLATILE_WRITE     	1L /* Write Non-Volatile Memory  */
+#define PDC_PAT_NVOLATILE_GET_SIZE  	2L /* Return size of NVM         */
+#define PDC_PAT_NVOLATILE_VERIFY    	3L /* Verify contents of NVM     */
+#define PDC_PAT_NVOLATILE_INIT      	4L /* Initialize NVM             */
+
+/* PDC PAT PD */
+
+#define PDC_PAT_PD                      74L /* Protection Domain Info      */
+#define PDC_PAT_PD_GET_ADDR_MAP         0L  /* Get Address Map             */
+
+/* PDC_PAT_PD_GET_ADDR_MAP entry types */
+
+#define PAT_MEMORY_DESCRIPTOR           1
+
+/* PDC_PAT_PD_GET_ADDR_MAP memory types */
+
+#define PAT_MEMTYPE_MEMORY              0
+#define PAT_MEMTYPE_FIRMWARE            4
+
+/* PDC_PAT_PD_GET_ADDR_MAP memory usage */
+
+#define PAT_MEMUSE_GENERAL              0
+#define PAT_MEMUSE_GI                 128
+#define PAT_MEMUSE_GNI                129
+#endif /* __LP64__ */
+
 #ifndef __ASSEMBLY__
 
 #include <linux/types.h>
@@ -193,6 +371,18 @@ extern int pdc_type;
 
 #define is_pdc_pat()    (pdc_type == PDC_TYPE_PAT)
 
+struct pdc_chassis_info {       /* for PDC_CHASSIS_INFO */
+	unsigned long actcnt;   /* actual number of bytes returned */
+	unsigned long maxcnt;   /* maximum number of bytes that could be returned */
+};
+
+struct pdc_coproc_cfg {         /* for PDC_COPROC_CFG */
+        unsigned long ccr_functional;
+        unsigned long ccr_present;
+        unsigned long revision;
+        unsigned long model;
+};
+
 struct pdc_model {		/* for PDC_MODEL */
 	unsigned long hversion;
 	unsigned long sversion;
@@ -203,19 +393,7 @@ struct pdc_model {		/* for PDC_MODEL */
 	unsigned long arch_rev;
 	unsigned long pot_key;
 	unsigned long curr_key;
-	unsigned long pad[32-9];
-} __attribute__((aligned(8))) ;
-
-
-struct pdc_model_sysmodel {	/* for PDC_MODEL_SYSMODEL */
-	unsigned long mod_len;
-	unsigned long pad[32-1];
-} __attribute__((aligned(8))) ;
-
-struct pdc_model_cpuid	 {	/* for PDC_MODEL_CPU_ID */
-	unsigned long cpuid;
-	unsigned long pad[32-1];
-} __attribute__((aligned(8))) ;
+};
 
 struct pdc_cache_cf {		/* for PDC_CACHE  (I/D-caches) */
     unsigned long
@@ -281,14 +459,7 @@ struct pdc_cache_info {		/* main-PDC_CAC
 	unsigned long	dt_off_stride;
 	unsigned long	dt_off_count;
 	unsigned long	dt_loop;
-	/* padded to 32 entries... */
-	unsigned long 	pad[32-30];
-} __attribute__((aligned(8))) ;
-
-struct pdc_hpa {      /* PDC_HPA */
-	unsigned long	hpa;
-	unsigned long	pad[31];
-} __attribute__((aligned(8))) ;
+};
 
 #if 0
 /* If you start using the next struct, you'll have to adjust it to
@@ -312,7 +483,7 @@ struct pdc_iodc {     /* PDC_IODC */
 } __attribute__((aligned(8))) ;
 #endif
 
-#ifndef __LP64__
+#ifndef CONFIG_PA20
 /* no BLTBs in pa2.0 processors */
 struct pdc_btlb_info_range {
 	__u8 res00;
@@ -326,21 +497,13 @@ struct pdc_btlb_info {	/* PDC_BLOCK_TLB,
 	unsigned int max_size;	/* maximum size of BTLB in pages */
 	struct pdc_btlb_info_range fixed_range_info;
 	struct pdc_btlb_info_range variable_range_info;
-	unsigned int pad[32-4];
-} __attribute__((aligned(8))) ;
+};
 #endif
 
-struct pdc_tlb {		/* for PDC_TLB */
-	unsigned long min_size;
-	unsigned long max_size;
-	unsigned long pad[32-2];
-} __attribute__((aligned(8))) ;
-
 #ifdef __LP64__
 struct pdc_memory_table_raddr { /* PDC_MEM/PDC_MEM_TABLE (return info) */
 	unsigned long entries_returned;
 	unsigned long entries_total;
-	unsigned long pad[32-2];
 };
 
 struct pdc_memory_table {       /* PDC_MEM/PDC_MEM_TABLE (arguments) */
@@ -354,14 +517,12 @@ struct pdc_system_map_mod_info { /* PDC_
 	void * mod_addr;
 	unsigned long mod_pgs;
 	unsigned long add_addrs;
-	unsigned long pad[32-3];
-} __attribute__((aligned(8))) ;
+};
 
 struct pdc_system_map_addr_info { /* PDC_SYSTEM_MAP/FIND_ADDRESS */
 	void * mod_addr;
 	unsigned long mod_pgs;
-	unsigned long pad[32-2];
-} __attribute__((aligned(8))) ;
+};
 
 /*
  * Device path specifications used by PDC.
@@ -372,31 +533,55 @@ struct pdc_module_path {
 			/* I/O adaptor (< 0 means none, > 63 resvd) */
 	char  mod;	/* fixed field of specified module */
 	unsigned int layers[6]; /* device-specific info (ctlr #, unit # ...) */
-	unsigned long pad[32-2];
-} __attribute__((aligned(8))) ;
+};
 
 #ifndef __LP64__
 /* Probably needs 64-bit porting -PB */
 struct pdc_memory_map {		/* PDC_MEMORY_MAP */
 	unsigned long hpa;	/* mod's register set address */
 	unsigned long more_pgs;	/* number of additional I/O pgs */
-	int pad1[30];
-} __attribute__((aligned(8))) ;
-
-struct pdc_lan_station_id {	/* PDC_LAN_STATION_ID */
-	unsigned char addr[PDC_LAN_STATION_ID_SIZE];
-	unsigned char pad0[2];
-	int pad1[30];
 };
 #endif
 
 struct pdc_tod {
 	unsigned long tod_sec; 
 	unsigned long tod_usec;
-	long pad[30];
-} __attribute__((aligned(8))) ;
+};
+
+#ifdef __LP64__
+struct pdc_pat_cell_num {
+	unsigned long cell_num;
+	unsigned long cell_loc;
+};
+
+struct pdc_pat_cpu_num {
+	unsigned long cpu_num;
+	unsigned long cpu_loc;
+};
 
+struct pdc_pat_pd_addr_map_entry {
+	unsigned char entry_type;       /* 1 = Memory Descriptor Entry Type */
+	unsigned char reserve1[5];
+	unsigned char memory_type;
+	unsigned char memory_usage;
+	unsigned long paddr;
+	unsigned int  pages;            /* Length in 4K pages */
+	unsigned int  reserve2;
+	unsigned long cell_map;
+};
+
+/* FIXME: mod[508] should really be a union of the various mod components */
+struct pdc_pat_cell_mod_maddr_block {	/* PDC_PAT_CELL_MODULE */
+	unsigned long cba;              /* function 0 configuration space address */
+	unsigned long mod_info;         /* module information */
+	unsigned long mod_location;     /* physical location of the module */
+	unsigned long mod_path;         /* module path (device path - layers) */
+	unsigned long mod[508];		/* PAT cell module components */
+};
 
+typedef struct pdc_pat_cell_mod_maddr_block pdc_pat_cell_mod_maddr_block_t;
+#endif
+
 /* architected results from PDC_PIM/transfer hpmc on a PA1.1 machine */
 
 struct pdc_hpmc_pim_11 { /* PDC_PIM */
@@ -599,67 +784,94 @@ struct zeropage {
 
 #ifndef __ASSEMBLY__
 extern void pdc_console_init(void);
-/* pdc_get/put are NOT SMP safe - use at your own risk! */
-extern int  pdc_getc(void);		/* wait for char */
-extern void pdc_putc(unsigned char);	/* print char */
-
 extern void setup_pdc(void);            /* in inventory.c */
 
 /* wrapper-functions from pdc.c */
 
 int pdc_add_valid(void *address);
-int pdc_hpa_processor(struct pdc_hpa *address);
-int pdc_coproc_cfg(void *address);
-int pdc_iodc_read(void *address, void *hpa, unsigned int index,
+int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len);
+int pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info);
+int pdc_iodc_read(unsigned long *actcnt, void *hpa, unsigned int index,
 		  void *iodc_data, unsigned int iodc_data_size);
-int pdc_psw_get_mask(void *address);
-int pdc_psw_get_defaults(void *address);
-int pdc_psw_set_defaults(unsigned long val);
 int pdc_system_map_find_mods(struct pdc_system_map_mod_info *pdc_mod_info,
 			     struct pdc_module_path *mod_path, long mod_index);
 int pdc_system_map_find_addrs(struct pdc_system_map_addr_info *pdc_addr_info, 
 			      long mod_index, long addr_index);
 int pdc_model_info(struct pdc_model *model);
 int pdc_model_sysmodel(char  *name);
-int pdc_model_cpuid(struct pdc_model_cpuid *cpu_id);
-int pdc_model_versions(struct pdc_model_cpuid *cpu_id, int id);
+int pdc_model_cpuid(unsigned long *cpu_id);
+int pdc_model_versions(unsigned long *versions, int id);
 int pdc_cache_info(struct pdc_cache_info *cache);
+#ifndef CONFIG_PA20
+int pdc_btlb_info(struct pdc_btlb_info *btlb);
+#endif
 #ifndef __LP64__
-int pdc_btlb_info( struct pdc_btlb_info *btlb);
-int pdc_lan_station_id( char *lan_addr, void *net_hpa);
 int pdc_mem_map_hpa(struct pdc_memory_map *r_addr, struct pdc_module_path *mod_path);
 #endif
-
-extern int pdc_chassis_disp(unsigned long disp);
-extern int pdc_chassis_info(void *pdc_result, void *chassis_info, unsigned long len);
+int pdc_lan_station_id(char *lan_addr, void *net_hpa);
 
-int pdc_pci_irt_size(void *r_addr, void *hpa);
-int pdc_pci_irt(void *r_addr, void *hpa, void *tbl);
+int pdc_pci_irt_size(unsigned long *num_entries, void *hpa);
+int pdc_pci_irt(unsigned long num_entries, void *hpa, void *tbl);
 
 int pdc_tod_read(struct pdc_tod *tod);
 int pdc_tod_set(unsigned long sec, unsigned long usec);
 
 #ifdef __LP64__
-int pdc_mem_mem_table(void *r_addr, void *tbl, unsigned long entries);
+int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr, struct pdc_memory_table *tbl, 
+		      unsigned long entries);
 #endif
 
-/* on all currently-supported platforms, IODC I/O calls are always
- * 32-bit calls, and MEM_PDC calls are always the same width as the OS.
- * This means Cxxx boxes can't run wide kernels right now. -PB
- *
- * Note that some PAT boxes may have 64-bit IODC I/O...
- */
+int pdc_do_firm_test_reset(unsigned long ftc_bitmap);
+int pdc_do_reset(void);
+void pdc_iodc_putc(unsigned char c);
+
+int pdc_sti_call(unsigned long func, unsigned long flags,
+                 unsigned long inptr, unsigned long outputr,
+                 unsigned long glob_cfg);
+
+#ifdef __LP64__
+int pdc_pat_cell_get_number(struct pdc_pat_cell_num *cell_info);
+int pdc_pat_cell_module(unsigned long *actcnt, unsigned long ploc, unsigned long mod,
+			unsigned long view_type, void *mem_addr);
+int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, void *hpa);
+int pdc_pat_get_irt_size(unsigned long *num_entries, unsigned long cell_num);
+int pdc_pat_get_irt(void *r_addr, unsigned long cell_num);
+int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr, 
+			    unsigned long count, unsigned long offset);
+
+/********************************************************************
+* PDC_PAT_CELL[Return Cell Module] memaddr[0] conf_base_addr
+* ----------------------------------------------------------
+* Bit  0 to 51 - conf_base_addr
+* Bit 52 to 62 - reserved
+* Bit       63 - endianess bit
+********************************************************************/
+#define PAT_GET_CBA(value) ((value) & 0xfffffffffffff000UL)
+
+/********************************************************************
+* PDC_PAT_CELL[Return Cell Module] memaddr[1] mod_info
+* ----------------------------------------------------
+* Bit  0 to  7 - entity type
+*    0 = central agent,            1 = processor,
+*    2 = memory controller,        3 = system bus adapter,
+*    4 = local bus adapter,        5 = processor bus converter,
+*    6 = crossbar fabric connect,  7 = fabric interconnect,
+*    8 to 254 reserved,            255 = unknown.
+* Bit  8 to 15 - DVI
+* Bit 16 to 23 - IOC functions
+* Bit 24 to 39 - reserved
+* Bit 40 to 63 - mod_pages
+*    number of 4K pages a module occupies starting at conf_base_addr
+********************************************************************/
+#define PAT_GET_ENTITY(value)	(((value) >> 56) & 0xffUL)
+#define PAT_GET_DVI(value)	(((value) >> 48) & 0xffUL)
+#define PAT_GET_IOC(value)	(((value) >> 40) & 0xffUL)
+#define PAT_GET_MOD_PAGES(value)(((value) & 0xffffffUL)
 
-/* yes 'int', not 'long' -- IODC I/O is always 32-bit stuff */
-extern long real64_call(unsigned long function, ...);
-extern long real32_call(unsigned long function, ...);
-
-#if defined(__LP64__) && ! defined(CONFIG_PDC_NARROW)
-#define MEM_PDC (unsigned long)(PAGE0->mem_pdc_hi) << 32 | PAGE0->mem_pdc
-#   define mem_pdc_call(args...) real64_call(MEM_PDC, args)
 #else
-#define MEM_PDC (unsigned long)PAGE0->mem_pdc
-#   define mem_pdc_call(args...) real32_call(MEM_PDC, args)
+/* No PAT support for 32-bit kernels...sorry */
+#define pdc_pat_get_irt_size(num_entries, cell_numn)	PDC_RET_NE_PROC
+#define pdc_pat_get_irt(r_addr, cell_num)	PDC_RET_NE_PROC
 #endif
 
 extern void pdc_init(void);
Index: include/asm-parisc/pdcpat.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/pdcpat.h,v
retrieving revision 1.7
diff -u -p -r1.7 pdcpat.h
--- pdcpat.h	2001/03/02 10:31:51	1.7
+++ pdcpat.h	2001/03/29 07:57:59
@@ -10,183 +10,6 @@
  * Copyright 2000 (c) Grant Grundler <grundler@puffin.external.hp.com>
  */
 
-/* PDC PAT CELL */
-#define PDC_PAT_CELL           	64L   /* Interface for gaining and 
-                                         * manipulatin g cell state within PD */
-#define PDC_PAT_CELL_GET_NUMBER    0L   /* Return Cell number */
-#define PDC_PAT_CELL_GET_INFO      1L   /* Returns info about Cell */
-#define PDC_PAT_CELL_MODULE        2L   /* Returns info about Module */
-#define PDC_PAT_CELL_SET_ATTENTION 9L   /* Set Cell Attention indicator */
-#define PDC_PAT_CELL_NUMBER_TO_LOC 10L   /* Cell Number -> Location */
-#define PDC_PAT_CELL_WALK_FABRIC   11L   /* Walk the Fabric */
-#define PDC_PAT_CELL_GET_RDT_SIZE  12L   /* Return Route Distance Table Sizes */
-#define PDC_PAT_CELL_GET_RDT       13L   /* Return Route Distance Tables */
-#define PDC_PAT_CELL_GET_LOCAL_PDH_SZ 14L /* Read Local PDH Buffer Size */
-#define PDC_PAT_CELL_SET_LOCAL_PDH    15L  /* Write Local PDH Buffer */
-#define PDC_PAT_CELL_GET_REMOTE_PDH_SZ 16L /* Return Remote PDH Buffer Size */
-#define PDC_PAT_CELL_GET_REMOTE_PDH 17L /* Read Remote PDH Buffer */
-#define PDC_PAT_CELL_GET_DBG_INFO   128L  /* Return DBG Buffer Info */
-#define PDC_PAT_CELL_CHANGE_ALIAS   129L  /* Change Non-Equivalent Alias Chacking */
-
-
-/*
-** Arg to PDC_PAT_CELL_MODULE memaddr[4]
-**
-** Addresses on the Merced Bus != all Runway Bus addresses.
-** This is intended for programming SBA/LBA chips range registers.
-*/
-#define IO_VIEW      0UL
-#define PA_VIEW      1UL
-
-/* PDC_PAT_CELL_MODULE entity type values */
-#define	PAT_ENTITY_CA	0	/* central agent */
-#define	PAT_ENTITY_PROC	1	/* processor */
-#define	PAT_ENTITY_MEM	2	/* memory controller */
-#define	PAT_ENTITY_SBA	3	/* system bus adapter */
-#define	PAT_ENTITY_LBA	4	/* local bus adapter */
-#define	PAT_ENTITY_PBC	5	/* processor bus converter */
-#define	PAT_ENTITY_XBC	6	/* crossbar fabric connect */
-#define	PAT_ENTITY_RC	7	/* fabric interconnect */
-
-/* PDC_PAT_CELL_MODULE address range type values */
-#define PAT_PBNUM           0         /* PCI Bus Number */
-#define PAT_LMMIO           1         /* < 4G MMIO Space */
-#define PAT_GMMIO           2         /* > 4G MMIO Space */
-#define PAT_NPIOP           3         /* Non Postable I/O Port Space */
-#define PAT_PIOP            4         /* Postable I/O Port Space */
-#define PAT_AHPA            5         /* Addional HPA Space */
-#define PAT_UFO             6         /* HPA Space (UFO for Mariposa) */
-#define PAT_GNIP            7         /* GNI Reserved Space */
-
-
-/* PDC PAT CHASSIS LOG */
-
-#define PDC_PAT_CHASSIS_LOG		65L /* Platform logging & forward
-					    ** progress functions */
-#define PDC_PAT_CHASSIS_WRITE_LOG    	0L /* Write Log Entry */
-#define PDC_PAT_CHASSIS_READ_LOG     	1L /* Read  Log Entry */
-
-/* PDC PAT CPU  */
-
-#define PDC_PAT_CPU                	67L /* Interface to CPU configuration
-                                        	* within the protection domain */
-#define PDC_PAT_CPU_INFO            	0L /* Return CPU config info */
-#define PDC_PAT_CPU_DELETE          	1L /* Delete CPU */
-#define PDC_PAT_CPU_ADD             	2L /* Add    CPU */
-#define PDC_PAT_CPU_GET_NUMBER      	3L /* Return CPU Number */
-#define PDC_PAT_CPU_GET_HPA         	4L /* Return CPU HPA */
-#define PDC_PAT_CPU_STOP            	5L /* Stop   CPU */
-#define PDC_PAT_CPU_RENDEZVOUS      	6L /* Rendezvous CPU */
-#define PDC_PAT_CPU_GET_CLOCK_INFO  	7L /* Return CPU Clock info */
-#define PDC_PAT_CPU_GET_RENDEZVOUS_STATE 8L /* Return Rendezvous State */
-#define PDC_PAT_CPU_PLUNGE_FABRIC 	128L /* Plunge Fabric */
-#define PDC_PAT_CPU_UPDATE_CACHE_CLEANSING 129L /* Manipulate Cache 
-                                                 * Cleansing Mode */
-/*  PDC PAT EVENT */
-
-#define PDC_PAT_EVENT              	68L /* Interface to Platform Events */
-#define PDC_PAT_EVENT_GET_CAPS     	0L /* Get Capabilities */
-#define PDC_PAT_EVENT_SET_MODE     	1L /* Set Notification Mode */
-#define PDC_PAT_EVENT_SCAN         	2L /* Scan Event */
-#define PDC_PAT_EVENT_HANDLE       	3L /* Handle Event */
-#define PDC_PAT_EVENT_GET_NB_CALL  	4L /* Get Non-Blocking call Args */
-
-/*  PDC PAT HPMC */
-
-#define PDC_PAT_HPMC               70L /* Cause processor to go into spin
-				       ** loop, and wait for wake up from
-				       ** Monarch Processor */
-#define PDC_PAT_HPMC_RENDEZ_CPU     0L /* go into spin loop */
-#define PDC_PAT_HPMC_SET_PARAMS     1L /* Allows OS to specify intr which PDC 
-                                        * will use to interupt OS during machine
-                                        * check rendezvous */
-
-/* parameters for PDC_PAT_HPMC_SET_PARAMS: */
-#define HPMC_SET_PARAMS_INTR 	    1L /* Rendezvous Interrupt */
-#define HPMC_SET_PARAMS_WAKE 	    2L /* Wake up processor */
-
-/*  PDC PAT IO */
-
-#define PDC_PAT_IO                  71L /* On-line services for I/O modules */
-#define PDC_PAT_IO_GET_SLOT_STATUS   	5L /* Get Slot Status Info*/
-#define PDC_PAT_IO_GET_LOC_FROM_HARDWARE 6L /* Get Physical Location from */
-                                            /* Hardware Path */
-#define PDC_PAT_IO_GET_HARDWARE_FROM_LOC 7L /* Get Hardware Path from 
-                                             * Physical Location */
-#define PDC_PAT_IO_GET_PCI_CONFIG_FROM_HW 11L /* Get PCI Configuration
-                                               * Address from Hardware Path */
-#define PDC_PAT_IO_GET_HW_FROM_PCI_CONFIG 12L /* Get Hardware Path 
-                                               * from PCI Configuration Address */
-#define PDC_PAT_IO_READ_HOST_BRIDGE_INFO 13L  /* Read Host Bridge State Info */
-#define PDC_PAT_IO_CLEAR_HOST_BRIDGE_INFO 14L /* Clear Host Bridge State Info*/
-#define PDC_PAT_IO_GET_PCI_ROUTING_TABLE_SIZE 15L /* Get PCI INT Routing Table 
-                                                   * Size */
-#define PDC_PAT_IO_GET_PCI_ROUTING_TABLE  16L /* Get PCI INT Routing Table */
-#define PDC_PAT_IO_GET_HINT_TABLE_SIZE 	17L /* Get Hint Table Size */
-#define PDC_PAT_IO_GET_HINT_TABLE   	18L /* Get Hint Table */
-#define PDC_PAT_IO_PCI_CONFIG_READ  	19L /* PCI Config Read */
-#define PDC_PAT_IO_PCI_CONFIG_WRITE 	20L /* PCI Config Write */
-#define PDC_PAT_IO_GET_NUM_IO_SLOTS 	21L /* Get Number of I/O Bay Slots in 
-                                       		  * Cabinet */
-#define PDC_PAT_IO_GET_LOC_IO_SLOTS 	22L /* Get Physical Location of I/O */
-                                   		     /* Bay Slots in Cabinet */
-#define PDC_PAT_IO_BAY_STATUS_INFO  	28L /* Get I/O Bay Slot Status Info */
-#define PDC_PAT_IO_GET_PROC_VIEW        29L /* Get Processor view of IO address */
-#define PDC_PAT_IO_PROG_SBA_DIR_RANGE   30L /* Program directed range */
-
-/* PDC PAT MEM */
-
-#define PDC_PAT_MEM             	72L /* Manage memory page deallocation */
-#define PDC_PAT_MEM_PD_INFO     	0L /* Return PDT info for PD       */
-#define PDC_PAT_MEM_PD_CLEAR    	1L /* Clear PDT for PD             */
-#define PDC_PAT_MEM_PD_READ     	2L /* Read PDT entries for PD      */
-#define PDC_PAT_MEM_PD_RESET    	3L /* Reset clear bit for PD       */
-#define PDC_PAT_MEM_CELL_INFO   	5L /* Return PDT info For Cell     */
-#define PDC_PAT_MEM_CELL_CLEAR  	6L /* Clear PDT For Cell           */
-#define PDC_PAT_MEM_CELL_READ   	7L /* Read PDT entries For Cell    */
-#define PDC_PAT_MEM_CELL_RESET  	8L /* Reset clear bit For Cell     */
-#define PDC_PAT_MEM_SETGM	  	9L /* Set Golden Memory value      */
-#define PDC_PAT_MEM_ADD_PAGE    	10L /* ADDs a page to the cell      */
-#define PDC_PAT_MEM_ADDRESS     	11L /* Get Physical Location From   */
-                                    		 /* Memory Address               */
-#define PDC_PAT_MEM_GET_TXT_SIZE   	12L /* Get Formatted Text Size   */
-#define PDC_PAT_MEM_GET_PD_TXT     	13L /* Get PD Formatted Text     */
-#define PDC_PAT_MEM_GET_CELL_TXT   	14L /* Get Cell Formatted Text   */
-#define PDC_PAT_MEM_RD_STATE_INFO  	15L /* Read Mem Module State Info*/
-#define PDC_PAT_MEM_CLR_STATE_INFO 	16L /*Clear Mem Module State Info*/
-#define PDC_PAT_MEM_CLEAN_RANGE    	128L /*Clean Mem in specific range*/
-#define PDC_PAT_MEM_GET_TBL_SIZE   	131L /* Get Memory Table Size     */
-#define PDC_PAT_MEM_GET_TBL        	132L /* Get Memory Table          */
-
-/* PDC PAT NVOLATILE */
-
-#define PDC_PAT_NVOLATILE          	73L /* Access Non-Volatile Memory */
-#define PDC_PAT_NVOLATILE_READ      	0L /* Read Non-Volatile Memory   */
-#define PDC_PAT_NVOLATILE_WRITE     	1L /* Write Non-Volatile Memory  */
-#define PDC_PAT_NVOLATILE_GET_SIZE  	2L /* Return size of NVM         */
-#define PDC_PAT_NVOLATILE_VERIFY    	3L /* Verify contents of NVM     */
-#define PDC_PAT_NVOLATILE_INIT      	4L /* Initialize NVM             */
-
-/* PDC PAT PD */
-
-#define PDC_PAT_PD                      74L /* Protection Domain Info      */
-#define PDC_PAT_PD_GET_ADDR_MAP         0L  /* Get Address Map             */
-
-/* PDC_PAT_PD_GET_ADDR_MAP entry types */
-
-#define PAT_MEMORY_DESCRIPTOR           1
-
-/* PDC_PAT_PD_GET_ADDR_MAP memory types */
-
-#define PAT_MEMTYPE_MEMORY              0
-#define PAT_MEMTYPE_FIRMWARE            4
-
-/* PDC_PAT_PD_GET_ADDR_MAP memory usage */
-
-#define PAT_MEMUSE_GENERAL              0
-#define PAT_MEMUSE_GI                 128
-#define PAT_MEMUSE_GNI                129
-
 #ifndef __ASSEMBLY__
 #include <linux/types.h>
 
@@ -210,82 +33,12 @@ struct pdc_pat_cell_info_rtn_block {
 
 typedef struct pdc_pat_cell_info_rtn_block pdc_pat_cell_info_rtn_block_t;
 
-/* FIXME: mod[508] should really be a union of the various mod components */
-struct pdc_pat_cell_mod_maddr_block {	/* PDC_PAT_CELL_MODULE */
-	unsigned long cba;              /* function 0 configuration space address */
-	unsigned long mod_info;         /* module information */
-	unsigned long mod_location;     /* physical location of the module */
-	unsigned long mod_path;         /* module path (device path - layers) */
-	unsigned long mod[508];		/* PAT cell module components */
-} __attribute__((aligned(8))) ;
-
-typedef struct pdc_pat_cell_mod_maddr_block pdc_pat_cell_mod_maddr_block_t;
-
-struct pdc_pat_io_num {
-	unsigned long num;
-	unsigned long reserved[31];
-};
-
-
  struct pdc_pat_pd_addr_map_rtn {
 	unsigned long actual_len;       /* actual # bytes in address map */
 	unsigned long reserved[31];
 } __attribute__((aligned(8))) ;
 
-struct pdc_pat_pd_addr_map_entry {
-	unsigned char entry_type;       /* 1 = Memory Descriptor Entry Type */
-	unsigned char reserve1[5];
-	unsigned char memory_type;
-	unsigned char memory_usage;
-	unsigned long paddr;
-	unsigned int  pages;            /* Length in 4K pages */
-	unsigned int  reserve2;
-	unsigned long cell_map;
-} __attribute__((aligned(8))) ;
-
-extern int pdc_pat_cell_get_number(void *);
-extern int pdc_pat_cell_module(void *, unsigned long, unsigned long, unsigned long, void *);
-extern int pdc_pat_cell_num_to_loc(void *, unsigned long);
-
-#ifdef __LP64__
-extern int pdc_pat_get_irt_size(void *r_addr, unsigned long cell_num);
-extern int pdc_pat_get_irt(void *r_addr, unsigned long cell_num);
-#else
-/* No PAT support for 32-bit kernels...sorry */
-#define pdc_pat_get_irt_size(r_addr, cell_numn)	PDC_RET_NE_PROC
-#define pdc_pat_get_irt(r_addr, cell_num)	PDC_RET_NE_PROC
-#endif
-
 extern int pdc_pat_pd_get_addr_map(void *, void *, unsigned long, unsigned long);
-
-/********************************************************************
-* PDC_PAT_CELL[Return Cell Module] memaddr[0] conf_base_addr
-* ----------------------------------------------------------
-* Bit  0 to 51 - conf_base_addr
-* Bit 52 to 62 - reserved
-* Bit       63 - endianess bit
-********************************************************************/
-#define PAT_GET_CBA(value) ((value) & 0xfffffffffffff000UL)
-
-/********************************************************************
-* PDC_PAT_CELL[Return Cell Module] memaddr[1] mod_info
-* ----------------------------------------------------
-* Bit  0 to  7 - entity type
-*    0 = central agent,            1 = processor,
-*    2 = memory controller,        3 = system bus adapter,
-*    4 = local bus adapter,        5 = processor bus converter,
-*    6 = crossbar fabric connect,  7 = fabric interconnect,
-*    8 to 254 reserved,            255 = unknown.
-* Bit  8 to 15 - DVI
-* Bit 16 to 23 - IOC functions
-* Bit 24 to 39 - reserved
-* Bit 40 to 63 - mod_pages
-*    number of 4K pages a module occupies starting at conf_base_addr
-********************************************************************/
-#define PAT_GET_ENTITY(value)	(((value) >> 56) & 0xffUL)
-#define PAT_GET_DVI(value)	(((value) >> 48) & 0xffUL)
-#define PAT_GET_IOC(value)	(((value) >> 40) & 0xffUL)
-#define PAT_GET_MOD_PAGES(value)(((value) & 0xffffffUL)
 
 #endif /* __ASSEMBLY__ */
 
Index: include/asm-parisc/processor.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/processor.h,v
retrieving revision 1.41
diff -u -p -r1.41 processor.h
--- processor.h	2001/03/02 08:28:56	1.41
+++ processor.h	2001/03/29 07:57:59
@@ -51,8 +51,8 @@ struct system_cpuinfo_parisc {
 
 	struct {
 		struct pdc_model model;
-		struct pdc_model_cpuid /* ARGH */ versions;
-		struct pdc_model_cpuid cpuid;
+		unsigned long versions;
+		unsigned long cpuid;
 #if 0
 		struct pdc_model_caps caps;
 #endif

--ZGiS0Q5IWpPtfppv
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="firmware.c"

/* arch/parisc/kernel/pdc.c  - safe pdc access routines
 *
 * Copyright 1999 SuSE GmbH Nuernberg (Philipp Rumpf, prumpf@tux.org)
 * portions Copyright 1999 The Puffin Group, (Alex deVries, David Kennedy)
 *
 * only these routines should be used out of the real kernel (i.e. everything
 * using virtual addresses) for obvious reasons */

/*	I think it would be in everyone's best interest to follow this
 *	guidelines when writing PDC wrappers:
 *
 *	 - the name of the pdc wrapper should match one of the macros
 *	   used for the first two arguments
 *	 - don't use caps for random parts of the name
 *	 - use ASSERT_ALIGN to ensure the aligment of the arguments is
 *	   correct
 *	 - use __pa() to convert virtual (kernel) pointers to physical
 *	   ones.
 *	 - the name of the struct used for pdc return values should equal
 *	   one of the macros used for the first two arguments to the
 *	   corresponding PDC call
 *	 - keep the order of arguments
 *	 - don't be smart (setting trailing NUL bytes for strings, return
 *	   something useful even if the call failed) unless you are sure
 *	   it's not going to affect functionality or performance
 *
 *	Example:
 *	int pdc_cache_info(struct pdc_cache_info *cache_info )
 *	{
 *		ASSERT_ALIGN(cache_info, 8);
 *	
 *		return mem_pdc_call(PDC_CACHE,PDC_CACHE_INFO,__pa(cache_info),0);
 *	}
 *					prumpf	991016	
 */

#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/spinlock.h>

#include <asm/page.h>
#include <asm/pdc.h>
#include <asm/system.h>

#include <stdarg.h>

static spinlock_t pdc_lock = SPIN_LOCK_UNLOCKED;
static unsigned long pdc_result[32] __attribute__ ((aligned (8)));
static unsigned long pdc_result2[32] __attribute__ ((aligned (8)));

/* on all currently-supported platforms, IODC I/O calls are always
 * 32-bit calls, and MEM_PDC calls are always the same width as the OS.
 * This means Cxxx boxes can't run wide kernels right now. -PB
 *
 * CONFIG_PDC_NARROW has been added to allow 64-bit kernels to run on
 * systems with 32-bit MEM_PDC calls. This will allow wide kernels to
 * run on Cxxx boxes now. -RB
 *
 * Note that some PAT boxes may have 64-bit IODC I/O...
 */

/* yes 'int', not 'long' -- IODC I/O is always 32-bit stuff */
#ifdef __LP64__
static long real64_call(unsigned long function, ...);
#endif
static long real32_call(unsigned long function, ...);

#if defined(__LP64__) && ! defined(CONFIG_PDC_NARROW)
#define MEM_PDC (unsigned long)(PAGE0->mem_pdc_hi) << 32 | PAGE0->mem_pdc
#   define mem_pdc_call(args...) real64_call(MEM_PDC, args)
#else
#define MEM_PDC (unsigned long)PAGE0->mem_pdc
#   define mem_pdc_call(args...) real32_call(MEM_PDC, args)
#endif


#define ASSERT_ALIGN(ptr, align)					\
	do { if(((unsigned long)(ptr)) & (align-1)) {			\
		printk("PDC: %s:%d  %s() called with "	\
			"unaligned argument from %p", __FILE__, __LINE__, \
			__FUNCTION__, __builtin_return_address(0));	\
									\
		return -1;						\
	} } while(0)
	
/**
 * f_extend - Convert PDC addresses to kernel addresses.
 * @address: Address returned from PDC.
 *
 * This function is used to convert PDC addresses into kernel addresses
 * when the PDC address size and kernel address size are different.
 */
static unsigned long f_extend(unsigned long address)
{
#ifdef CONFIG_PDC_NARROW
	if((address & 0xff000000) == 0xf0000000)
		return 0xf0f0f0f000000000 | (u32)address;

	if((address & 0xf0000000) == 0xf0000000)
		return 0xffffffff00000000 | (u32)address;
#endif
	return address;
}

/**
 * convert_to_wide - Convert the return buffer addresses into kernel addresses.
 * @address: The return buffer from PDC.
 *
 * This fucntion is used to convert the return buffer addresses retrieve from PDC
 * into kernel addresses when the PDC address size and kernel address size are
 * different.
 */
static void convert_to_wide(unsigned long *addr)
{
#ifdef CONFIG_PDC_NARROW
	int i;
	unsigned *p = (unsigned int *)addr;
	for(i = 31; i >= 0; --i)
		addr[i] = p[i];
#endif
}

/**
 * pdc_add_valid - Verify address can be accessesd without causing a HPMC.
 * @address: Address to be verified.
 *
 * This PDC call attempts to read from the specified address and verify
 * the address is valid.
 */
int pdc_add_valid(void *address)
{
        int retval;

        spin_lock_irq(&pdc_lock);
        retval = mem_pdc_call(PDC_ADD_VALID, PDC_ADD_VALID_VERIFY, address);
        spin_unlock_irq(&pdc_lock);

        return retval;
}

/**
 * pdc_chassis_info - Return chassis information.
 * @result: The return buffer.
 * @chassis_info: The memory buffer address.
 * @len: The size of the memory buffer address.
 *
 * An HVERSION dependent call for returning the chassis information.
 */
int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len)
{
        int retval;

        spin_lock_irq(&pdc_lock);
        retval = mem_pdc_call(PDC_CHASSIS, PDC_RETURN_CHASSIS_INFO,
                              __pa(pdc_result), __pa(pdc_result2), len);
	memcpy(chassis_info, pdc_result, sizeof(*chassis_info));
	memcpy(led_info, pdc_result2, sizeof(*led_info));
        spin_unlock_irq(&pdc_lock);

        return retval;
}

/**
 * pdc_coproc_cfg - To identify coprocessors attached to the processor.
 * @pdc_coproc_info: Return buffer address.
 *
 * This PDC call returns the presence and status of all the coprocessors
 * attached to the processor.
 */
int pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info)
{
        int retval;

        spin_lock_irq(&pdc_lock);
        retval = mem_pdc_call(PDC_COPROC, PDC_COPROC_CFG, __pa(pdc_result));
        convert_to_wide(pdc_result);
        pdc_coproc_info->ccr_functional = pdc_result[0];
        pdc_coproc_info->ccr_present = pdc_result[1];
        pdc_coproc_info->revision = pdc_result[17];
        pdc_coproc_info->model = pdc_result[18];
        spin_unlock_irq(&pdc_lock);

        return retval;
}

/**
 * pdc_iodc_read - Read data from the modules IODC.
 * @actcnt: The actual number of bytes.
 * @hpa: The HPA of the module for the iodc read.
 * @index: The iodc entry point.
 * @iodc_data: A buffer memory for the iodc options.
 * @iodc_data_size: Size of the memory buffer.
 *
 * This PDC call reads from the IODC of the module specified by the hpa
 * argument.
 */
int pdc_iodc_read(unsigned long *actcnt, void *hpa, unsigned int index,
		  void *iodc_data, unsigned int iodc_data_size)
{
	int retval;

	spin_lock_irq(&pdc_lock);
	retval = mem_pdc_call(PDC_IODC, PDC_IODC_READ, __pa(pdc_result), hpa, 
			      index, __pa(pdc_result2), iodc_data_size);
	convert_to_wide(pdc_result);
	*actcnt = pdc_result[0];
	memcpy(iodc_data, pdc_result2, iodc_data_size);
	spin_unlock_irq(&pdc_lock);

	return retval;
}

/**
 * pdc_system_map_find_mods - Locate unarchitected modules.
 * @pdc_mod_info: Return buffer address.
 * @mod_path: pointer to dev path structure.
 * @mod_index: fixed address module index.
 *
 * To locate and identify modules which reside at fixed I/O addresses, which
 * do not self-identify via architected bus walks.
 */
int pdc_system_map_find_mods(struct pdc_system_map_mod_info *pdc_mod_info,
			     struct pdc_module_path *mod_path, long mod_index)
{
	int retval;

	spin_lock_irq(&pdc_lock);
	retval = mem_pdc_call(PDC_SYSTEM_MAP, PDC_FIND_MODULE, __pa(pdc_result), 
			      __pa(pdc_result2), mod_index);
	convert_to_wide(pdc_result);
	memcpy(pdc_mod_info, pdc_result, sizeof(*pdc_mod_info));
	memcpy(mod_path, pdc_result2, sizeof(*mod_path));
	spin_unlock_irq(&pdc_lock);

	pdc_mod_info->mod_addr = (void *)f_extend((unsigned long)pdc_mod_info->mod_addr);
	return retval;
}

/**
 * pdc_system_map_find_addrs - Retrieve additional address ranges.
 * @pdc_addr_info: Return buffer address.
 * @mod_index: Fixed address module index.
 * @addr_index: Address range index.
 * 
 * Retrieve additional information about subsequent address ranges for modules
 * with multiple address ranges.  
 */
int pdc_system_map_find_addrs(struct pdc_system_map_addr_info *pdc_addr_info, 
			      long mod_index, long addr_index)
{
	int retval;

	spin_lock_irq(&pdc_lock);
	retval = mem_pdc_call(PDC_SYSTEM_MAP, PDC_FIND_ADDRESS, __pa(pdc_result),
			      mod_index, addr_index);
	convert_to_wide(pdc_result);
	memcpy(pdc_addr_info, pdc_result, sizeof(*pdc_addr_info));
	spin_unlock_irq(&pdc_lock);

	pdc_addr_info->mod_addr = (void *)f_extend((unsigned long)pdc_addr_info->mod_addr);
	return retval;
}

/**
 * pdc_model_info - Return model information about the processor.
 * @model: The return buffer.
 *
 * Returns the version numbers, identifiers, and capabilities from the processor module.
 */
int pdc_model_info(struct pdc_model *model) 
{
	int retval;

	spin_lock_irq(&pdc_lock);
	retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_INFO, __pa(pdc_result), 0);
	convert_to_wide(pdc_result);
	memcpy(model, pdc_result, sizeof(*model));
	spin_unlock_irq(&pdc_lock);

	return retval;
}

/**
 * pdc_model_sysmodel - Get the system model name.
 * @name: A char array of at least 81 characters.
 *
 * Get system model name from PDC ROM (e.g. 9000/715 or 9000/778/B160L)
 */
int pdc_model_sysmodel(char *name)
{
        int retval;

        spin_lock_irq(&pdc_lock);
        retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_SYSMODEL, __pa(pdc_result),
                              OS_ID_HPUX, __pa(name));
        convert_to_wide(pdc_result);

        if (retval == PDC_RET_OK) {
                name[pdc_result[0]] = '\0'; /* add trailing '\0' */
        } else {
                name[0] = 0;
        }
        spin_unlock_irq(&pdc_lock);

        return retval;
}

/**
 * pdc_model_versions - Identify the version number of each processor.
 * @cpu_id: The return buffer.
 * @id: The id of the processor to check.
 *
 * Returns the version number for each processor component.
 *
 * This comment was here before, but I do not know what it means :( -RB
 * id: 0 = cpu revision, 1 = boot-rom-version
 */
int pdc_model_versions(unsigned long *versions, int id)
{
        int retval;

        spin_lock_irq(&pdc_lock);
        retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_VERSIONS, __pa(pdc_result), id);
        convert_to_wide(pdc_result);
        *versions = pdc_result[0];
        spin_unlock_irq(&pdc_lock);

        return retval;
}

/**
 * pdc_model_cpuid - Returns the CPU_ID.
 * @cpu_id: The return buffer.
 *
 * Returns the CPU_ID value which uniquely identifies the cpu portion of
 * the processor module.
 */
int pdc_model_cpuid(unsigned long *cpu_id)
{
        int retval;

        spin_lock_irq(&pdc_lock);
        pdc_result[0] = 0; /* preset zero (call may not be implimented!) */
        retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CPU_ID, __pa(pdc_result), 0);
        convert_to_wide(pdc_result);
        *cpu_id = pdc_result[0];
        spin_unlock_irq(&pdc_lock);

        return retval;
}

/**
 * pdc_cache_info - Return cache and TLB information.
 * @cache_info: The return buffer.
 *
 * Returns information about the processor's cache and TLB.
 */
int pdc_cache_info(struct pdc_cache_info *cache_info)
{
        int retval;

        spin_lock_irq(&pdc_lock);
        retval = mem_pdc_call(PDC_CACHE, PDC_CACHE_INFO, __pa(pdc_result), 0);
        convert_to_wide(pdc_result);
        memcpy(cache_info, pdc_result, sizeof(*cache_info));
        spin_unlock_irq(&pdc_lock);

        return retval;
}

#ifndef CONFIG_PA20
/**
 * pdc_btlb_info - Return block TLB information.
 * @btlb: The return buffer.
 *
 * Returns information about the hardware Block TLB.
 */
int pdc_btlb_info(struct pdc_btlb_info *btlb) 
{
        int retval;

        spin_lock_irq(&pdc_lock);
        retval = mem_pdc_call(PDC_BLOCK_TLB, PDC_BTLB_INFO, __pa(pdc_result), 0);
        memcpy(btlb, pdc_result, sizeof(*btlb));
        spin_unlock_irq(&pdc_lock);

        if(retval < 0) {
                btlb->max_size = 0;
        }
        return retval;
}
#endif

#ifndef __LP64__
/**
 * pdc_mem_map_hpa - Find fixed module information.  
 * @address: The return buffer
 * @mod_path: pointer to dev path structure.
 *
 * This call was developed for S700 workstations to allow the kernel to find
 * the I/O devices (Core I/O). In the future (Kittyhawk and beyond) this
 * call will be replaced (on workstations) by the architected PDC_SYSTEM_MAP
 * call.
 *
 * This call is supported by all existing S700 workstations (up to  Gecko).
 */
int pdc_mem_map_hpa(struct pdc_memory_map *address, struct pdc_module_path *mod_path)
{
        int retval;

        spin_lock_irq(&pdc_lock);
        memcpy(pdc_result2, mod_path, sizeof(*mod_path));
        retval = mem_pdc_call(PDC_MEM_MAP, PDC_MEM_MAP_HPA, __pa(pdc_result), __pa(pdc_result2));
        memcpy(address, pdc_result, sizeof(*address));
        spin_unlock_irq(&pdc_lock);

        return retval;
}
#endif

/**
 * pdc_lan_station_id - Get the LAN address.
 * @lan_addr: The return buffer.
 * @net_hpa: The network device HPA.
 *
 * Get the LAN station address when it is not directly available from the LAN hardware.
 */
int pdc_lan_station_id(char *lan_addr, void *net_hpa)
{
        int retval;
	unsigned int ret[2];

        spin_lock_irq(&pdc_lock);
        retval = mem_pdc_call(PDC_LAN_STATION_ID, PDC_LAN_STATION_ID_READ,
                              __pa(pdc_result), net_hpa);
        if(retval < 0) {
                /* FIXME: else read MAC from NVRAM */
                memset(lan_addr, 0, PDC_LAN_STATION_ID_SIZE);
        } else {
		ret[0] = (unsigned int)pdc_result[0];
		ret[1] = (unsigned int)pdc_result[1];
		memcpy(lan_addr, ret, PDC_LAN_STATION_ID_SIZE);
        }
        spin_unlock_irq(&pdc_lock);

        return retval;
}

/**
 * pdc_pci_irt_size - Get the number of entries in the interrupt routing table.
 * @num_entries: The return value.
 * @hpa: The HPA for the device.
 *
 * This PDC function returns the number of entries in the specified cell's
 * interrupt table.
 * Similar to PDC_PAT stuff - but added for Forte/Allegro boxes
 */ 
int pdc_pci_irt_size(unsigned long *num_entries, void *hpa)
{
	int retval;

	spin_lock_irq(&pdc_lock);
	retval = mem_pdc_call(PDC_PCI_INDEX, PDC_PCI_GET_INT_TBL_SIZE, 
			      __pa(pdc_result), hpa);
	convert_to_wide(pdc_result);
	*num_entries = pdc_result[0];
	spin_unlock_irq(&pdc_lock);

	return retval;
}

/** 
 * pdc_pci_irt - Get the PCI interrupt routing table.
 * @num_entries: The number of entries in the table.
 * @hpa: The Hard Physical Address of the device.
 * @tbl: 
 *
 * Get the PCI interrupt routing table for the device at the given HPA.
 * Similar to PDC_PAT stuff - but added for Forte/Allegro boxes
 */
int pdc_pci_irt(unsigned long num_entries, void *hpa, void *tbl)
{
	int retval;

	spin_lock_irq(&pdc_lock);
	pdc_result[0] = num_entries;
	retval = mem_pdc_call(PDC_PCI_INDEX, PDC_PCI_GET_INT_TBL, 
			      __pa(pdc_result), hpa, __pa(tbl));
	spin_unlock_irq(&pdc_lock);

	return retval;
}

/**
 * pdc_tod_read - Read the Time-Of-Day clock.
 * @tod: The return buffer:
 *
 * Read the Time-Of-Day clock
 */
int pdc_tod_read(struct pdc_tod *tod)
{
        int retval;

        spin_lock_irq(&pdc_lock);
        retval = mem_pdc_call(PDC_TOD, PDC_TOD_READ, __pa(pdc_result), 0);
        convert_to_wide(pdc_result);
        memcpy(tod, pdc_result, sizeof(*tod));
        spin_unlock_irq(&pdc_lock);

        return retval;
}

/**
 * pdc_tod_set - Set the Time-Of-Day clock.
 * @sec: The number of seconds since epoch.
 * @usec: The number of micro seconds.
 *
 * Set the Time-Of-Day clock.
 */ 
int pdc_tod_set(unsigned long sec, unsigned long usec)
{
        int retval;

        spin_lock_irq(&pdc_lock);
        retval = mem_pdc_call(PDC_TOD, PDC_TOD_WRITE, sec, usec);
        spin_unlock_irq(&pdc_lock);

        return retval;
}

#ifdef __LP64__
int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr, struct pdc_memory_table *tbl, 
		      unsigned long entries)
{
	int retval;

	spin_lock_irq(&pdc_lock);
	retval = mem_pdc_call(PDC_MEM, PDC_MEM_TABLE, __pa(pdc_result), __pa(pdc_result2), entries);
	convert_to_wide(pdc_result);
	memcpy(r_addr, pdc_result, sizeof(*r_addr));
	memcpy(tbl, pdc_result2, entries * sizeof(*tbl));
	spin_unlock_irq(&pdc_lock);

	return retval;
}
#endif

/* FIXME: Is this pdc used?  I could not find type reference to ftc_bitmap
 * so I guessed at unsigned long.  Someone who knows what this does, can fix
 * it later. :)
 */
int pdc_do_firm_test_reset(unsigned long ftc_bitmap)
{
        int retval;

        spin_lock_irq(&pdc_lock);
        retval = mem_pdc_call(PDC_BROADCAST_RESET, PDC_DO_FIRM_TEST_RESET,
                              PDC_FIRM_TEST_MAGIC, ftc_bitmap);
        spin_unlock_irq(&pdc_lock);

        return retval;
}

/*
 * pdc_do_reset - Reset the system.
 *
 * Reset the system.
 */
int pdc_do_reset()
{
        int retval;

        spin_lock_irq(&pdc_lock);
        retval = mem_pdc_call(PDC_BROADCAST_RESET, PDC_DO_RESET);
        spin_unlock_irq(&pdc_lock);

        return retval;
}

/**
 * iodc_iodc_putc - Console character print using IODC.
 * @c: the character to output.
 *
 * Note that only these special chars are architected for console IODC io:
 * BEL, BS, CR, and LF. Others are passed through.
 * Since the HP console requires CR+LF to perform a 'newline', we translate
 * "\n" to "\r\n".
 */
void pdc_iodc_putc(unsigned char c)
{
        /* XXX Should we spinlock posx usage */
        static int posx;        /* for simple TAB-Simulation... */
        static int __attribute__((aligned(8)))   iodc_retbuf[32];
        static char __attribute__((aligned(64))) iodc_dbuf[4096];
        unsigned int n;

        switch (c) {
        case '\n':
                iodc_dbuf[0] = '\r';
                iodc_dbuf[1] = '\n';
                n = 2;
                posx = 0;
                break;
        case '\t':
                pdc_iodc_putc(' ');
                while (posx & 7)        /* expand TAB */
                        pdc_iodc_putc(' ');
                return;         /* return since IODC can't handle this */
        case '\b':
                posx-=2;                /* BS */
        default:
                iodc_dbuf[0] = c;
                n = 1;
                posx++;
                break;
        }

        spin_lock_irq(&pdc_lock);
        real32_call(PAGE0->mem_cons.iodc_io,
                    (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
                    PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers),
                    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0);
        spin_unlock_irq(&pdc_lock);
}

int pdc_sti_call(unsigned long func, unsigned long flags,
                 unsigned long inptr, unsigned long outputr,
                 unsigned long glob_cfg)
{
        int retval;

        spin_lock_irq(&pdc_lock);  
        retval = real32_call(func, flags, inptr, outputr, glob_cfg);
        spin_unlock_irq(&pdc_lock);

        return retval;
}

#ifdef __LP64__
/**
 * pdc_pat_cell_get_number - Returns the cell number.
 * @cell_info: The return buffer.
 *
 * This PDC call returns the cell number of the cell from which the call
 * is made.
 */
int pdc_pat_cell_get_number(struct pdc_pat_cell_num *cell_info)
{
	int retval;

	spin_lock_irq(&pdc_lock);
	retval = mem_pdc_call(PDC_PAT_CELL, PDC_PAT_CELL_GET_NUMBER, __pa(pdc_result));
	memcpy(cell_info, pdc_result, sizeof(*cell_info));
	spin_unlock_irq(&pdc_lock);

	return retval;
}

/**
 * pdc_pat_cell_module - Retrieve the cell's module information.
 * @actcnt: The number of bytes written to mem_addr.
 * @ploc: The physical location.
 * @mod: The module index.
 * @view_type: The view of the address type.
 * @mem_addr: The return buffer.
 *
 * This PDC call returns information about each module attached to the cell
 * at the specified location.
 */
int pdc_pat_cell_module(unsigned long *actcnt, unsigned long ploc, unsigned long mod,
			unsigned long view_type, void *mem_addr)
{
	int retval;

	spin_lock_irq(&pdc_lock);
	retval = mem_pdc_call(PDC_PAT_CELL, PDC_PAT_CELL_MODULE, __pa(pdc_result), 
			      ploc, mod, view_type, __pa(pdc_result2));
	if(!retval) {
		*actcnt = pdc_result[0];
		memcpy(mem_addr, pdc_result2, *actcnt);
	}
	spin_unlock_irq(&pdc_lock);

	return retval;
}

/**
 * pdc_pat_cpu_get_number - Retrieve the cpu number.
 * @cpu_info: The return buffer.
 * @hpa: The Hard Physical Address of the CPU.
 *
 * Retrieve the cpu number for the cpu at the specified HPA.
 */
int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, void *hpa)
{
	int retval;

	spin_lock_irq(&pdc_lock);
	retval = mem_pdc_call(PDC_PAT_CPU, PDC_PAT_CPU_GET_NUMBER,
			      __pa(&pdc_result), hpa);
	memcpy(cpu_info, pdc_result, sizeof(*cpu_info));
	spin_unlock_irq(&pdc_lock);

	return retval;
}

/**
 * pdc_pat_get_irt_size - Retrieve the number of entries in the cell's interrupt table.
 * @num_entries: The return value.
 * @cell_num: The target cell.
 *
 * This PDC function returns the number of entries in the specified cell's
 * interrupt table.
 */
int pdc_pat_get_irt_size(unsigned long *num_entries, unsigned long cell_num)
{
	int retval;

	spin_lock_irq(&pdc_lock);
	retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_GET_PCI_ROUTING_TABLE_SIZE,
			      __pa(pdc_result), cell_num);
	*num_entries = pdc_result[0];
	spin_unlock_irq(&pdc_lock);

	return retval;
}

/**
 * pdc_pat_get_irt - Retrieve the cell's interrupt table.
 * @r_addr: The return buffer.
 * @cell_num: The target cell.
 *
 * This PDC functin returns the actual interrupt table for the specified cell.
 */
int pdc_pat_get_irt(void *r_addr, unsigned long cell_num)
{
	int retval;

	spin_lock_irq(&pdc_lock);
	retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_GET_PCI_ROUTING_TABLE,
			      __pa(r_addr), cell_num);
	spin_unlock_irq(&pdc_lock);

	return retval;
}

/**
 * pdc_pat_pd_get_addr_map - Retrieve information about memory address ranges.
 * @actlen: The return buffer.
 * @mem_addr: Pointer to the memory buffer.
 * @count: The number of bytes to read from the buffer.
 * @offset: The offset with respect to the beginning of the buffer.
 *
 */
int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr, 
			    unsigned long count, unsigned long offset)
{
	int retval;

	spin_lock_irq(&pdc_lock);
	retval = mem_pdc_call(PDC_PAT_PD, PDC_PAT_PD_GET_ADDR_MAP, __pa(pdc_result), 
			      __pa(pdc_result2), count, offset);
	*actual_len = pdc_result[0];
	memcpy(mem_addr, pdc_result2, *actual_len);
	spin_unlock_irq(&pdc_lock);

	return retval;
}
#endif


/***************** 32-bit real-mode calls ***********/
/* The struct below is used
 * to overlay real_stack (real2.S), preparing a 32-bit call frame.
 * real32_call_asm() then uses this stack in narrow real mode
 */

struct narrow_stack {
	/* use int, not long which is 64 bits */
	unsigned int arg13;
	unsigned int arg12;
	unsigned int arg11;
	unsigned int arg10;
	unsigned int arg9;
	unsigned int arg8;
	unsigned int arg7;
	unsigned int arg6;
	unsigned int arg5;
	unsigned int arg4;
	unsigned int arg3;
	unsigned int arg2;
	unsigned int arg1;
	unsigned int arg0;
	unsigned int frame_marker[8];
	unsigned int sp;
	/* in reality, there's nearly 8k of stack after this */
};

static long real32_call(unsigned long fn, ...)
{
	va_list args;
	extern struct narrow_stack real_stack;
	extern unsigned long real32_call_asm(unsigned int *,
					     unsigned int *, 
					     unsigned int);
	
	va_start(args, fn);
	real_stack.arg0 = va_arg(args, unsigned int);
	real_stack.arg1 = va_arg(args, unsigned int);
	real_stack.arg2 = va_arg(args, unsigned int);
	real_stack.arg3 = va_arg(args, unsigned int);
	real_stack.arg4 = va_arg(args, unsigned int);
	real_stack.arg5 = va_arg(args, unsigned int);
	real_stack.arg6 = va_arg(args, unsigned int);
	real_stack.arg7 = va_arg(args, unsigned int);
	real_stack.arg8 = va_arg(args, unsigned int);
	real_stack.arg9 = va_arg(args, unsigned int);
	real_stack.arg10 = va_arg(args, unsigned int);
	real_stack.arg11 = va_arg(args, unsigned int);
	real_stack.arg12 = va_arg(args, unsigned int);
	real_stack.arg13 = va_arg(args, unsigned int);
	va_end(args);
	
	return real32_call_asm(&real_stack.sp, &real_stack.arg0, fn);
}

#ifdef __LP64__
/***************** 64-bit real-mode calls ***********/

struct wide_stack {
	unsigned long arg0;
	unsigned long arg1;
	unsigned long arg2;
	unsigned long arg3;
	unsigned long arg4;
	unsigned long arg5;
	unsigned long arg6;
	unsigned long arg7;
	unsigned long arg8;
	unsigned long arg9;
	unsigned long arg10;
	unsigned long arg11;
	unsigned long arg12;
	unsigned long arg13;
	unsigned long frame_marker[2];	/* rp, previous sp */
	unsigned long sp;
	/* in reality, there's nearly 8k of stack after this */
};

static long real64_call(unsigned long fn, ...)
{
	va_list args;
	extern struct wide_stack real_stack;
	extern unsigned long real64_call_asm(unsigned long *,
					     unsigned long *, 
					     unsigned long);
    
	va_start(args, fn);
	real_stack.arg0 = va_arg(args, unsigned long);
	real_stack.arg1 = va_arg(args, unsigned long);
	real_stack.arg2 = va_arg(args, unsigned long);
	real_stack.arg3 = va_arg(args, unsigned long);
	real_stack.arg4 = va_arg(args, unsigned long);
	real_stack.arg5 = va_arg(args, unsigned long);
	real_stack.arg6 = va_arg(args, unsigned long);
	real_stack.arg7 = va_arg(args, unsigned long);
	real_stack.arg8 = va_arg(args, unsigned long);
	real_stack.arg9 = va_arg(args, unsigned long);
	real_stack.arg10 = va_arg(args, unsigned long);
	real_stack.arg11 = va_arg(args, unsigned long);
	real_stack.arg12 = va_arg(args, unsigned long);
	real_stack.arg13 = va_arg(args, unsigned long);
	va_end(args);
	
	return real64_call_asm(&real_stack.sp, &real_stack.arg0, fn);
}

#endif


--ZGiS0Q5IWpPtfppv
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#ifndef _PARISC_PDC_H
#define _PARISC_PDC_H

/*
    PDC entry points...
*/

#define PDC_POW_FAIL	1		/* perform a power-fail		*/
#define PDC_POW_FAIL_PREPARE	0	/* prepare for powerfail	*/

#define PDC_CHASSIS	2		/* PDC-chassis functions	*/
#define PDC_CHASSIS_DISP	0	/* update chassis display	*/
#define PDC_CHASSIS_WARN	1	/* return chassis warnings	*/
#define PDC_CHASSIS_DISPWARN	2	/* update&return chassis status */
#define PDC_RETURN_CHASSIS_INFO 128	/* HVERSION dependend: return chassis LED/LCD info  */

#define PDC_PIM         3               /* Get PIM data                 */
#define PDC_PIM_HPMC            0       /* Transfer HPMC data           */
#define PDC_PIM_RETURN_SIZE     1       /* Get Max buffer needed for PIM*/
#define PDC_PIM_LPMC            2       /* Transfer HPMC data           */
#define PDC_PIM_SOFT_BOOT       3       /* Transfer Soft Boot data      */
#define PDC_PIM_TOC             4       /* Transfer TOC data            */

#define PDC_MODEL	4		/* PDC model information call	*/
#define PDC_MODEL_INFO		0	/* returns information 		*/
#define PDC_MODEL_BOOTID	1	/* set the BOOT_ID		*/
#define PDC_MODEL_VERSIONS	2	/* returns cpu-internal versions*/
#define PDC_MODEL_SYSMODEL	3	/* return system model info	*/
#define PDC_MODEL_ENSPEC	4	/* ??? */
#define PDC_MODEL_DISPEC	5	/* ??? */
#define PDC_MODEL_CPU_ID	6	/* returns cpu-id (only newer machines!) */
#define PDC_MODEL_CAPABILITIES	7	/* returns OS32/OS64-flags	*/
#define PDC_MODEL_GET_BOOT__OP	8	/* returns boot test options	*/
#define PDC_MODEL_SET_BOOT__OP	9	/* set boot test options	*/

#define PDC_CACHE	5		/* return/set cache (& TLB) info*/
#define PDC_CACHE_INFO		0	/* returns information 		*/
#define PDC_CACHE_SET_COH	1	/* set coherence state		*/
#define PDC_CACHE_RET_SPID	2	/* returns space-ID bits	*/

#define PDC_HPA	 6       	/* return HPA of processor */
#define PDC_HPA_PROCESSOR       0
#define PDC_HPA_MODULES	 1

#define PDC_COPROC	7       /* Co-Processor (usually FP unit(s)) */
#define PDC_COPROC_CFG	0       /* Co-Processor Cfg (FP unit(s) enabled?) */

#define PDC_IODC	8       /* talk to IODC */
#define PDC_IODC_READ	   0       /* read IODC entry point */
/*      PDC_IODC_RI_*		      INDEX parameter of PDC_IODC_READ   */
#define PDC_IODC_RI_DATA_BYTES	0	/* IODC Data Bytes		    */
/*				1, 2	   obsolete - HVERSION dependent      */
#define PDC_IODC_RI_INIT	3	/* Initialize module		  */
#define PDC_IODC_RI_IO		4	/* Module input/output		*/
#define PDC_IODC_RI_SPA		5	/* Module input/output		*/
#define PDC_IODC_RI_CONFIG	6	/* Module input/output		*/
/*				7	  obsolete - HVERSION dependent      */
#define PDC_IODC_RI_TEST	8	/* Module input/output		*/
#define PDC_IODC_RI_TLB		9	/* Module input/output		*/
#define PDC_IODC_NINIT	  2       /* non-destructive init */
#define PDC_IODC_DINIT	  3       /* destructive init */
#define PDC_IODC_MEMERR	 4       /* check for memory errors */
#define PDC_IODC_INDEX_DATA     0       /* get first 16 bytes from mod IODC */
#define PDC_IODC_BUS_ERROR      -4      /* bus error return value */
#define PDC_IODC_INVALID_INDEX  -5      /* invalid index return value */
#define PDC_IODC_COUNT	  -6      /* count is too small */

#define	PDC_TOD		9		/* time-of-day clock (TOD) */
#define	PDC_TOD_READ		0	/* read TOD  */
#define	PDC_TOD_WRITE		1	/* write TOD */
#define	PDC_TOD_ITIMER		2	/* calibrate Interval Timer (CR16) */

#define PDC_ADD_VALID	12    		/* Memory validation PDC call */
#define PDC_ADD_VALID_VERIFY  0    	/* Make PDC_ADD_VALID verify region */

#define PDC_INSTR	15		/* get instr to invoke PDCE_CHECK() */

#define PDC_BLOCK_TLB	18		/* manage hardware block-TLB	*/
#define PDC_BTLB_INFO		0	/* returns parameter 		*/
#define PDC_BTLB_INSERT		1	/* insert BTLB entry		*/
#define PDC_BTLB_PURGE		2	/* purge BTLB entries 		*/
#define PDC_BTLB_PURGE_ALL	3	/* purge all BTLB entries 	*/

#define PDC_TLB		19		/* manage hardware TLB miss handling */
#define PDC_TLB_INFO		0	/* returns parameter 		*/
#define PDC_TLB_SETUP		1	/* set up miss handling 	*/

#define PDC_MEM         20              /* Manage memory */
#define PDC_MEM_TABLE           128     /* Non contig mem map (sprockets) */

#define PDC_PSW		21		/* Get/Set default System Mask  */
#define PDC_PSW_MASK            0	/* Return mask                  */
#define PDC_PSW_GET_DEFAULTS    1	/* Return defaults              */
#define PDC_PSW_SET_DEFAULTS    2	/* Set default                  */
#define PDC_PSW_ENDIAN_BIT	1	/* set for big endian           */
#define PDC_PSW_WIDE_BIT	2	/* set for wide mode            */ 

#define PDC_SYSTEM_MAP	22		/* find system modules */
#define PDC_FIND_MODULE 	0
#define PDC_FIND_ADDRESS        1


/* HVERSION dependent */

#define PDC_IO			135	/* log error info, reset IO system  */

#define PDC_BROADCAST_RESET	136	/* reset all processors	     */
#define PDC_DO_RESET            0UL	/* option: perform a broadcast reset */
#define PDC_DO_FIRM_TEST_RESET  1UL	/* Do broadcast reset with bitmap */
#define PDC_BR_RECONFIGURATION  2UL	/* reset w/reconfiguration */
#define PDC_FIRM_TEST_MAGIC 	0xab9ec36fUL    /* for this reboot only */

#define PDC_LAN_STATION_ID      138     /* Hversion dependent mechanism for */
#define PDC_LAN_STATION_ID_READ 0       /* getting the lan station address  */

#define	PDC_LAN_STATION_ID_SIZE	6

/* Legacy PDC definitions for same stuff */
#define PDC_PCI_INDEX		   147UL
#define PDC_PCI_GET_INT_TBL_SIZE	13UL
#define PDC_PCI_GET_INT_TBL	     14UL

/* generic error codes returned by all PDC-functions */

#define PDC_WARN	    3  /* Call completed with a warning */
#define PDC_REQ_ERR_1       2  /* See above */
#define PDC_REQ_ERR_0       1  /* Call would generate a requestor error */
#define PDC_OK	      0  /* Call completed successfully */
#define PDC_BAD_PROC	   -1  /* Called non-existant procedure */
#define PDC_BAD_OPTION     -2  /* Called with non-existant option */
#define PDC_ERROR	  -3  /* Call could not complete without an error */
#define PDC_INVALID_ARG   -10  /* Called with an invalid argument */
#define PDC_BUS_POW_WARN  -12  /* Call could not complete in allowed power budget */


/* The following are from the HPUX .h files, and are just for
compatibility */

#define PDC_RET_OK       0L	/* Call completed successfully */
#define PDC_RET_NE_PROC -1L	/* Non-existent procedure */
#define PDC_RET_NE_OPT  -2L	/* non-existant option - arg1 */
#define PDC_RET_NE_MOD  -5L	/* Module not found */
#define PDC_RET_NE_CELL_MOD -7L	/* Cell module not found */
#define PDC_RET_INV_ARG	-10L	/* Invalid argument */
#define PDC_RET_NOT_NARROW -17L /* Narrow mode not supported */


/* Error codes for PDC_ADD_VALID */

#define PDC_ADD_VALID_WARN	    3  /* Call completed with a warning */
#define PDC_ADD_VALID_REQ_ERR_1       2  /* See above */
#define PDC_ADD_VALID_REQ_ERR_0       1  /* Call would generate a requestor error */
#define PDC_ADD_VALID_OK	      0  /* Call completed successfully */
#define PDC_ADD_VALID_BAD_OPTION     -2  /* Called with non-existant option */
#define PDC_ADD_VALID_ERROR	  -3  /* Call could not complete without an error */
#define PDC_ADD_VALID_INVALID_ARG   -10  /* Called with an invalid argument */
#define PDC_ADD_VALID_BUS_POW_WARN  -12  /* Call could not complete in allowed power budget */

/* The PDC_MEM_MAP calls */

#define PDC_MEM_MAP	    128
#define PDC_MEM_MAP_HPA		0

/* constants for OS (NVM...) */
#define OS_ID_NONE	0
#define OS_ID_HPUX	1
#define OS_ID_MPEXL	2
#define OS_ID_OSF	3
#define OS_ID_LINUX	OS_ID_HPUX

/* constants for PDC_CHASSIS */
#define OSTAT_OFF		      0
#define OSTAT_FLT		      1 
#define OSTAT_TEST		     2
#define OSTAT_INIT		     3
#define OSTAT_SHUT		     4
#define OSTAT_WARN		     5
#define OSTAT_RUN		      6
#define OSTAT_ON		       7

#ifdef __LP64__
/* PDC PAT CELL */
#define PDC_PAT_CELL           	64L   /* Interface for gaining and 
                                         * manipulatin g cell state within PD */
#define PDC_PAT_CELL_GET_NUMBER    0L   /* Return Cell number */
#define PDC_PAT_CELL_GET_INFO      1L   /* Returns info about Cell */
#define PDC_PAT_CELL_MODULE        2L   /* Returns info about Module */
#define PDC_PAT_CELL_SET_ATTENTION 9L   /* Set Cell Attention indicator */
#define PDC_PAT_CELL_NUMBER_TO_LOC 10L   /* Cell Number -> Location */
#define PDC_PAT_CELL_WALK_FABRIC   11L   /* Walk the Fabric */
#define PDC_PAT_CELL_GET_RDT_SIZE  12L   /* Return Route Distance Table Sizes */
#define PDC_PAT_CELL_GET_RDT       13L   /* Return Route Distance Tables */
#define PDC_PAT_CELL_GET_LOCAL_PDH_SZ 14L /* Read Local PDH Buffer Size */
#define PDC_PAT_CELL_SET_LOCAL_PDH    15L  /* Write Local PDH Buffer */
#define PDC_PAT_CELL_GET_REMOTE_PDH_SZ 16L /* Return Remote PDH Buffer Size */
#define PDC_PAT_CELL_GET_REMOTE_PDH 17L /* Read Remote PDH Buffer */
#define PDC_PAT_CELL_GET_DBG_INFO   128L  /* Return DBG Buffer Info */
#define PDC_PAT_CELL_CHANGE_ALIAS   129L  /* Change Non-Equivalent Alias Chacking */

/*
** Arg to PDC_PAT_CELL_MODULE memaddr[4]
**
** Addresses on the Merced Bus != all Runway Bus addresses.
** This is intended for programming SBA/LBA chips range registers.
*/
#define IO_VIEW      0UL
#define PA_VIEW      1UL

/* PDC_PAT_CELL_MODULE entity type values */
#define	PAT_ENTITY_CA	0	/* central agent */
#define	PAT_ENTITY_PROC	1	/* processor */
#define	PAT_ENTITY_MEM	2	/* memory controller */
#define	PAT_ENTITY_SBA	3	/* system bus adapter */
#define	PAT_ENTITY_LBA	4	/* local bus adapter */
#define	PAT_ENTITY_PBC	5	/* processor bus converter */
#define	PAT_ENTITY_XBC	6	/* crossbar fabric connect */
#define	PAT_ENTITY_RC	7	/* fabric interconnect */

/* PDC_PAT_CELL_MODULE address range type values */
#define PAT_PBNUM           0         /* PCI Bus Number */
#define PAT_LMMIO           1         /* < 4G MMIO Space */
#define PAT_GMMIO           2         /* > 4G MMIO Space */
#define PAT_NPIOP           3         /* Non Postable I/O Port Space */
#define PAT_PIOP            4         /* Postable I/O Port Space */
#define PAT_AHPA            5         /* Addional HPA Space */
#define PAT_UFO             6         /* HPA Space (UFO for Mariposa) */
#define PAT_GNIP            7         /* GNI Reserved Space */


/* PDC PAT CHASSIS LOG */

#define PDC_PAT_CHASSIS_LOG		65L /* Platform logging & forward
					    ** progress functions */
#define PDC_PAT_CHASSIS_WRITE_LOG    	0L /* Write Log Entry */
#define PDC_PAT_CHASSIS_READ_LOG     	1L /* Read  Log Entry */

/* PDC PAT CPU  */

#define PDC_PAT_CPU                	67L /* Interface to CPU configuration
                                        	* within the protection domain */
#define PDC_PAT_CPU_INFO            	0L /* Return CPU config info */
#define PDC_PAT_CPU_DELETE          	1L /* Delete CPU */
#define PDC_PAT_CPU_ADD             	2L /* Add    CPU */
#define PDC_PAT_CPU_GET_NUMBER      	3L /* Return CPU Number */
#define PDC_PAT_CPU_GET_HPA         	4L /* Return CPU HPA */
#define PDC_PAT_CPU_STOP            	5L /* Stop   CPU */
#define PDC_PAT_CPU_RENDEZVOUS      	6L /* Rendezvous CPU */
#define PDC_PAT_CPU_GET_CLOCK_INFO  	7L /* Return CPU Clock info */
#define PDC_PAT_CPU_GET_RENDEZVOUS_STATE 8L /* Return Rendezvous State */
#define PDC_PAT_CPU_PLUNGE_FABRIC 	128L /* Plunge Fabric */
#define PDC_PAT_CPU_UPDATE_CACHE_CLEANSING 129L /* Manipulate Cache 
                                                 * Cleansing Mode */
/*  PDC PAT EVENT */

#define PDC_PAT_EVENT              	68L /* Interface to Platform Events */
#define PDC_PAT_EVENT_GET_CAPS     	0L /* Get Capabilities */
#define PDC_PAT_EVENT_SET_MODE     	1L /* Set Notification Mode */
#define PDC_PAT_EVENT_SCAN         	2L /* Scan Event */
#define PDC_PAT_EVENT_HANDLE       	3L /* Handle Event */
#define PDC_PAT_EVENT_GET_NB_CALL  	4L /* Get Non-Blocking call Args */

/*  PDC PAT HPMC */

#define PDC_PAT_HPMC               70L /* Cause processor to go into spin
				       ** loop, and wait for wake up from
				       ** Monarch Processor */
#define PDC_PAT_HPMC_RENDEZ_CPU     0L /* go into spin loop */
#define PDC_PAT_HPMC_SET_PARAMS     1L /* Allows OS to specify intr which PDC 
                                        * will use to interupt OS during machine
                                        * check rendezvous */

/* parameters for PDC_PAT_HPMC_SET_PARAMS: */
#define HPMC_SET_PARAMS_INTR 	    1L /* Rendezvous Interrupt */
#define HPMC_SET_PARAMS_WAKE 	    2L /* Wake up processor */

/*  PDC PAT IO */

#define PDC_PAT_IO                  71L /* On-line services for I/O modules */
#define PDC_PAT_IO_GET_SLOT_STATUS   	5L /* Get Slot Status Info*/
#define PDC_PAT_IO_GET_LOC_FROM_HARDWARE 6L /* Get Physical Location from */
                                            /* Hardware Path */
#define PDC_PAT_IO_GET_HARDWARE_FROM_LOC 7L /* Get Hardware Path from 
                                             * Physical Location */
#define PDC_PAT_IO_GET_PCI_CONFIG_FROM_HW 11L /* Get PCI Configuration
                                               * Address from Hardware Path */
#define PDC_PAT_IO_GET_HW_FROM_PCI_CONFIG 12L /* Get Hardware Path 
                                               * from PCI Configuration Address */
#define PDC_PAT_IO_READ_HOST_BRIDGE_INFO 13L  /* Read Host Bridge State Info */
#define PDC_PAT_IO_CLEAR_HOST_BRIDGE_INFO 14L /* Clear Host Bridge State Info*/
#define PDC_PAT_IO_GET_PCI_ROUTING_TABLE_SIZE 15L /* Get PCI INT Routing Table 
                                                   * Size */
#define PDC_PAT_IO_GET_PCI_ROUTING_TABLE  16L /* Get PCI INT Routing Table */
#define PDC_PAT_IO_GET_HINT_TABLE_SIZE 	17L /* Get Hint Table Size */
#define PDC_PAT_IO_GET_HINT_TABLE   	18L /* Get Hint Table */
#define PDC_PAT_IO_PCI_CONFIG_READ  	19L /* PCI Config Read */
#define PDC_PAT_IO_PCI_CONFIG_WRITE 	20L /* PCI Config Write */
#define PDC_PAT_IO_GET_NUM_IO_SLOTS 	21L /* Get Number of I/O Bay Slots in 
                                       		  * Cabinet */
#define PDC_PAT_IO_GET_LOC_IO_SLOTS 	22L /* Get Physical Location of I/O */
                                   		     /* Bay Slots in Cabinet */
#define PDC_PAT_IO_BAY_STATUS_INFO  	28L /* Get I/O Bay Slot Status Info */
#define PDC_PAT_IO_GET_PROC_VIEW        29L /* Get Processor view of IO address */
#define PDC_PAT_IO_PROG_SBA_DIR_RANGE   30L /* Program directed range */

/* PDC PAT MEM */

#define PDC_PAT_MEM             	72L /* Manage memory page deallocation */
#define PDC_PAT_MEM_PD_INFO     	0L /* Return PDT info for PD       */
#define PDC_PAT_MEM_PD_CLEAR    	1L /* Clear PDT for PD             */
#define PDC_PAT_MEM_PD_READ     	2L /* Read PDT entries for PD      */
#define PDC_PAT_MEM_PD_RESET    	3L /* Reset clear bit for PD       */
#define PDC_PAT_MEM_CELL_INFO   	5L /* Return PDT info For Cell     */
#define PDC_PAT_MEM_CELL_CLEAR  	6L /* Clear PDT For Cell           */
#define PDC_PAT_MEM_CELL_READ   	7L /* Read PDT entries For Cell    */
#define PDC_PAT_MEM_CELL_RESET  	8L /* Reset clear bit For Cell     */
#define PDC_PAT_MEM_SETGM	  	9L /* Set Golden Memory value      */
#define PDC_PAT_MEM_ADD_PAGE    	10L /* ADDs a page to the cell      */
#define PDC_PAT_MEM_ADDRESS     	11L /* Get Physical Location From   */
                                    		 /* Memory Address               */
#define PDC_PAT_MEM_GET_TXT_SIZE   	12L /* Get Formatted Text Size   */
#define PDC_PAT_MEM_GET_PD_TXT     	13L /* Get PD Formatted Text     */
#define PDC_PAT_MEM_GET_CELL_TXT   	14L /* Get Cell Formatted Text   */
#define PDC_PAT_MEM_RD_STATE_INFO  	15L /* Read Mem Module State Info*/
#define PDC_PAT_MEM_CLR_STATE_INFO 	16L /*Clear Mem Module State Info*/
#define PDC_PAT_MEM_CLEAN_RANGE    	128L /*Clean Mem in specific range*/
#define PDC_PAT_MEM_GET_TBL_SIZE   	131L /* Get Memory Table Size     */
#define PDC_PAT_MEM_GET_TBL        	132L /* Get Memory Table          */

/* PDC PAT NVOLATILE */

#define PDC_PAT_NVOLATILE          	73L /* Access Non-Volatile Memory */
#define PDC_PAT_NVOLATILE_READ      	0L /* Read Non-Volatile Memory   */
#define PDC_PAT_NVOLATILE_WRITE     	1L /* Write Non-Volatile Memory  */
#define PDC_PAT_NVOLATILE_GET_SIZE  	2L /* Return size of NVM         */
#define PDC_PAT_NVOLATILE_VERIFY    	3L /* Verify contents of NVM     */
#define PDC_PAT_NVOLATILE_INIT      	4L /* Initialize NVM             */

/* PDC PAT PD */

#define PDC_PAT_PD                      74L /* Protection Domain Info      */
#define PDC_PAT_PD_GET_ADDR_MAP         0L  /* Get Address Map             */

/* PDC_PAT_PD_GET_ADDR_MAP entry types */

#define PAT_MEMORY_DESCRIPTOR           1

/* PDC_PAT_PD_GET_ADDR_MAP memory types */

#define PAT_MEMTYPE_MEMORY              0
#define PAT_MEMTYPE_FIRMWARE            4

/* PDC_PAT_PD_GET_ADDR_MAP memory usage */

#define PAT_MEMUSE_GENERAL              0
#define PAT_MEMUSE_GI                 128
#define PAT_MEMUSE_GNI                129
#endif /* __LP64__ */

#ifndef __ASSEMBLY__

#include <linux/types.h>

extern int pdc_type;

/* Values for pdc_type */

#define PDC_TYPE_ILLEGAL   -1
#define PDC_TYPE_PAT        0   /* Newer PAT PDC box (64 bit only */
#define PDC_TYPE_SYSTEM_MAP 1   /* Legacy box that supports PDC_SYSTEM_MAP */
#define PDC_TYPE_LEGACY     2   /* Older Legacy box */

#define is_pdc_pat()    (pdc_type == PDC_TYPE_PAT)

struct pdc_chassis_info {       /* for PDC_CHASSIS_INFO */
	unsigned long actcnt;   /* actual number of bytes returned */
	unsigned long maxcnt;   /* maximum number of bytes that could be returned */
};

struct pdc_coproc_cfg {         /* for PDC_COPROC_CFG */
        unsigned long ccr_functional;
        unsigned long ccr_present;
        unsigned long revision;
        unsigned long model;
};

struct pdc_model {		/* for PDC_MODEL */
	unsigned long hversion;
	unsigned long sversion;
	unsigned long hw_id;
	unsigned long boot_id;
	unsigned long sw_id;
	unsigned long sw_cap;
	unsigned long arch_rev;
	unsigned long pot_key;
	unsigned long curr_key;
};

struct pdc_cache_cf {		/* for PDC_CACHE  (I/D-caches) */
    unsigned long
#ifdef __LP64__
		cc_padW:32,
#endif
		cc_alias:4,	/* alias boundaries for virtual adresses   */
		cc_block: 4,	/* to determine most efficient stride */
		cc_line	: 3,	/* maximum amount written back as a result of store (multiple of 16 bytes) */
		cc_pad0 : 2,	/* reserved */
		cc_wt	: 1,	/* 0 = WT-Dcache, 1 = WB-Dcache */
		cc_sh	: 2,	/* 0 = separate I/D-cache, else shared I/D-cache */
		cc_cst  : 3,	/* 0 = incoherent D-cache, 1=coherent D-cache */
		cc_pad1 : 5,	/* reserved */
		cc_assoc: 8;	/* associativity of I/D-cache */
};

struct pdc_tlb_cf {		/* for PDC_CACHE (I/D-TLB's) */
    unsigned long tc_pad0:12,	/* reserved */
#ifdef __LP64__
		tc_padW:32,
#endif
		tc_sh	: 2,	/* 0 = separate I/D-TLB, else shared I/D-TLB */
		tc_hv   : 1,	/* HV */
		tc_page : 1,	/* 0 = 2K page-size-machine, 1 = 4k page size */
		tc_cst  : 3,	/* 0 = incoherent operations, else coherent operations */
		tc_aid  : 5,	/* ITLB: width of access ids of processor (encoded!) */
		tc_pad1 : 8;	/* ITLB: width of space-registers (encoded) */
};

struct pdc_cache_info {		/* main-PDC_CACHE-structure (caches & TLB's) */
	/* I-cache */
	unsigned long	ic_size;	/* size in bytes */
	struct pdc_cache_cf ic_conf;	/* configuration */
	unsigned long	ic_base;	/* base-addr */
	unsigned long	ic_stride;
	unsigned long	ic_count;
	unsigned long	ic_loop;
	/* D-cache */
	unsigned long	dc_size;	/* size in bytes */
	struct pdc_cache_cf dc_conf;	/* configuration */
	unsigned long	dc_base;	/* base-addr */
	unsigned long	dc_stride;
	unsigned long	dc_count;
	unsigned long	dc_loop;
	/* Instruction-TLB */
	unsigned long	it_size;	/* number of entries in I-TLB */
	struct pdc_tlb_cf it_conf;	/* I-TLB-configuration */
	unsigned long	it_sp_base;
	unsigned long	it_sp_stride;
	unsigned long	it_sp_count;
	unsigned long	it_off_base;
	unsigned long	it_off_stride;
	unsigned long	it_off_count;
	unsigned long	it_loop;
	/* data-TLB */
	unsigned long	dt_size;	/* number of entries in D-TLB */
	struct pdc_tlb_cf dt_conf;	/* D-TLB-configuration */
	unsigned long	dt_sp_base;
	unsigned long	dt_sp_stride;
	unsigned long	dt_sp_count;
	unsigned long	dt_off_base;
	unsigned long	dt_off_stride;
	unsigned long	dt_off_count;
	unsigned long	dt_loop;
};

#if 0
/* If you start using the next struct, you'll have to adjust it to
 * work with 64-bit firmware I think -PB
 */
struct pdc_iodc {     /* PDC_IODC */
	unsigned char   hversion_model;
	unsigned char 	hversion;
	unsigned char 	spa;
	unsigned char 	type;
	unsigned int	sversion_rev:4;
	unsigned int	sversion_model:19;
	unsigned int	sversion_opt:8;
	unsigned char	rev;
	unsigned char	dep;
	unsigned char	features;
	unsigned char	pad1;
	unsigned int	checksum:16;
	unsigned int	length:16;
	unsigned int    pad[15];
} __attribute__((aligned(8))) ;
#endif

#ifndef CONFIG_PA20
/* no BLTBs in pa2.0 processors */
struct pdc_btlb_info_range {
	__u8 res00;
	__u8 num_i;
	__u8 num_d;
	__u8 num_comb;
};

struct pdc_btlb_info {	/* PDC_BLOCK_TLB, return of PDC_BTLB_INFO */
	unsigned int min_size;	/* minimum size of BTLB in pages */
	unsigned int max_size;	/* maximum size of BTLB in pages */
	struct pdc_btlb_info_range fixed_range_info;
	struct pdc_btlb_info_range variable_range_info;
};
#endif

#ifdef __LP64__
struct pdc_memory_table_raddr { /* PDC_MEM/PDC_MEM_TABLE (return info) */
	unsigned long entries_returned;
	unsigned long entries_total;
};

struct pdc_memory_table {       /* PDC_MEM/PDC_MEM_TABLE (arguments) */
	unsigned long paddr;
	unsigned int  pages;
	unsigned int  reserved;
};
#endif

struct pdc_system_map_mod_info { /* PDC_SYSTEM_MAP/FIND_MODULE */
	void * mod_addr;
	unsigned long mod_pgs;
	unsigned long add_addrs;
};

struct pdc_system_map_addr_info { /* PDC_SYSTEM_MAP/FIND_ADDRESS */
	void * mod_addr;
	unsigned long mod_pgs;
};

/*
 * Device path specifications used by PDC.
 */
struct pdc_module_path {
	char  flags;	/* see bit definitions below */
	char  bc[6];	/* Bus Converter routing info to a specific */
			/* I/O adaptor (< 0 means none, > 63 resvd) */
	char  mod;	/* fixed field of specified module */
	unsigned int layers[6]; /* device-specific info (ctlr #, unit # ...) */
};

#ifndef __LP64__
/* Probably needs 64-bit porting -PB */
struct pdc_memory_map {		/* PDC_MEMORY_MAP */
	unsigned long hpa;	/* mod's register set address */
	unsigned long more_pgs;	/* number of additional I/O pgs */
};
#endif

struct pdc_tod {
	unsigned long tod_sec; 
	unsigned long tod_usec;
};

#ifdef __LP64__
struct pdc_pat_cell_num {
	unsigned long cell_num;
	unsigned long cell_loc;
};

struct pdc_pat_cpu_num {
	unsigned long cpu_num;
	unsigned long cpu_loc;
};

struct pdc_pat_pd_addr_map_entry {
	unsigned char entry_type;       /* 1 = Memory Descriptor Entry Type */
	unsigned char reserve1[5];
	unsigned char memory_type;
	unsigned char memory_usage;
	unsigned long paddr;
	unsigned int  pages;            /* Length in 4K pages */
	unsigned int  reserve2;
	unsigned long cell_map;
};

/* FIXME: mod[508] should really be a union of the various mod components */
struct pdc_pat_cell_mod_maddr_block {	/* PDC_PAT_CELL_MODULE */
	unsigned long cba;              /* function 0 configuration space address */
	unsigned long mod_info;         /* module information */
	unsigned long mod_location;     /* physical location of the module */
	unsigned long mod_path;         /* module path (device path - layers) */
	unsigned long mod[508];		/* PAT cell module components */
};

typedef struct pdc_pat_cell_mod_maddr_block pdc_pat_cell_mod_maddr_block_t;
#endif

/* architected results from PDC_PIM/transfer hpmc on a PA1.1 machine */

struct pdc_hpmc_pim_11 { /* PDC_PIM */
	__u32 gr[32];
	__u32 cr[32];
	__u32 sr[8];
	__u32 iasq_back;
	__u32 iaoq_back;
	__u32 check_type;
	__u32 cpu_state;
	__u32 rsvd1;
	__u32 cache_check;
	__u32 tlb_check;
	__u32 bus_check;
	__u32 assists_check;
	__u32 rsvd2;
	__u32 assist_state;
	__u32 responder_addr;
	__u32 requestor_addr;
	__u32 path_info;
	__u64 fr[32];
};

/*
 * architected results from PDC_PIM/transfer hpmc on a PA2.0 machine
 *
 * Note that PDC_PIM doesn't care whether or not wide mode was enabled
 * so the results are different on  PA1.1 vs. PA2.0 when in narrow mode.
 *
 * Note also that there are unarchitected results available, which
 * are hversion dependent. Do a "ser pim 0 hpmc" after rebooting, since
 * the firmware is probably the best way of printing hversion dependent
 * data.
 */

struct pdc_hpmc_pim_20 { /* PDC_PIM */
	__u64 gr[32];
	__u64 cr[32];
	__u64 sr[8];
	__u64 iasq_back;
	__u64 iaoq_back;
	__u32 check_type;
	__u32 cpu_state;
	__u32 cache_check;
	__u32 tlb_check;
	__u32 bus_check;
	__u32 assists_check;
	__u32 assist_state;
	__u32 path_info;
	__u64 responder_addr;
	__u64 requestor_addr;
	__u64 fr[32];
};

#endif /* __ASSEMBLY__ */

/* flags of the device_path (see below) */
#define	PF_AUTOBOOT	0x80
#define	PF_AUTOSEARCH	0x40
#define	PF_TIMER	0x0F

#ifndef __ASSEMBLY__

struct device_path {		/* page 1-69 */
	unsigned char flags;	/* flags see above! */
	unsigned char bc[6];	/* bus converter routing info */
	unsigned char mod;
	unsigned int  layers[6];/* device-specific layer-info */
} __attribute__((aligned(8))) ;

struct pz_device {
	struct	device_path dp;	/* see above */
	/* struct	iomod *hpa; */
	unsigned int hpa;	/* HPA base address */
	/* char	*spa; */
	unsigned int spa;	/* SPA base address */
	/* int	(*iodc_io)(struct iomod*, ...); */
	unsigned int iodc_io;	/* device entry point */
	short	pad;		/* reserved */
	unsigned short cl_class;/* see below */
} __attribute__((aligned(8))) ;

#endif /* __ASSEMBLY__ */

/* cl_class
 * page 3-33 of IO-Firmware ARS
 * IODC ENTRY_INIT(Search first) RET[1]
 */
#define	CL_NULL		0	/* invalid */
#define	CL_RANDOM	1	/* random access (as disk) */
#define	CL_SEQU		2	/* sequential access (as tape) */
#define	CL_DUPLEX	7	/* full-duplex point-to-point (RS-232, Net) */
#define	CL_KEYBD	8	/* half-duplex console (HIL Keyboard) */
#define	CL_DISPL	9	/* half-duplex console (display) */
#define	CL_FC		10	/* FiberChannel access media */

#if 0
/* FIXME: DEVCLASS_* duplicates CL_* (above).  Delete DEVCLASS_*? */
#define DEVCLASS_RANDOM		1
#define DEVCLASS_SEQU		2
#define DEVCLASS_DUPLEX		7
#define DEVCLASS_KEYBD		8
#define DEVCLASS_DISP		9
#endif

/* IODC ENTRY_INIT() */
#define ENTRY_INIT_SRCH_FRST	2
#define ENTRY_INIT_SRCH_NEXT	3
#define ENTRY_INIT_MOD_DEV	4
#define ENTRY_INIT_DEV		5
#define ENTRY_INIT_MOD		6
#define ENTRY_INIT_MSG		9

/* IODC ENTRY_IO() */
#define ENTRY_IO_BOOTIN		0
#define ENTRY_IO_CIN		2
#define ENTRY_IO_COUT		3
#define ENTRY_IO_CLOSE		4
#define ENTRY_IO_GETMSG		9

/* IODC ENTRY_SPA() */

/* IODC ENTRY_CONFIG() */

/* IODC ENTRY_TEST() */

/* IODC ENTRY_TLB() */


/* DEFINITION OF THE ZERO-PAGE (PAG0) */
/* based on work by Jason Eckhardt (jason@equator.com) */

#ifndef __ASSEMBLY__

#define PAGE0   ((struct zeropage *)__PAGE_OFFSET)

struct zeropage {
	/* [0x000] initialize vectors (VEC) */
	unsigned int	vec_special;		/* must be zero */
	/* int	(*vec_pow_fail)(void);*/
	unsigned int	vec_pow_fail; /* power failure handler */
	/* int	(*vec_toc)(void); */
	unsigned int	vec_toc;
	unsigned int	vec_toclen;
	/* int	(*vec_rendz)(void); */
	unsigned int vec_rendz;
	int	vec_pow_fail_flen;
	int	vec_pad[10];		
	
	/* [0x040] reserved processor dependent */
	int	pad0[112];

	/* [0x200] reserved */
	int	pad1[84];

	/* [0x350] memory configuration (MC) */
	int	memc_cont;		/* contiguous mem size (bytes) */
	int	memc_phsize;		/* physical memory size */
	int	memc_adsize;		/* additional mem size, bytes of SPA space used by PDC */
	unsigned int mem_pdc_hi;	/* used for 64-bit */

	/* [0x360] various parameters for the boot-CPU */
	/* unsigned int *mem_booterr[8]; */
	unsigned int mem_booterr[8];	/* ptr to boot errors */
	unsigned int mem_free;		/* first location, where OS can be loaded */
	/* struct iomod *mem_hpa; */
	unsigned int mem_hpa;		/* HPA of the boot-CPU */
	/* int (*mem_pdc)(int, ...); */
	unsigned int mem_pdc;		/* PDC entry point */
	unsigned int mem_10msec;	/* number of clock ticks in 10msec */

	/* [0x390] initial memory module (IMM) */
	/* struct iomod *imm_hpa; */
	unsigned int imm_hpa;		/* HPA of the IMM */
	int	imm_soft_boot;		/* 0 = was hard boot, 1 = was soft boot */
	unsigned int	imm_spa_size;		/* SPA size of the IMM in bytes */
	unsigned int	imm_max_mem;		/* bytes of mem in IMM */

	/* [0x3A0] boot console, display device and keyboard */
	struct pz_device mem_cons;	/* description of console device */
	struct pz_device mem_boot;	/* description of boot device */
	struct pz_device mem_kbd;	/* description of keyboard device */

	/* [0x430] reserved */
	int	pad430[116];

	/* [0x600] processor dependent */
	__u32	pad600[1];
	__u32	proc_sti;		/* pointer to STI ROM */
	__u32	pad608[126];
};

#endif /* __ASSEMBLY__ */

/* Page Zero constant offsets used by the HPMC handler */

#define BOOT_CONSOLE_HPA_OFFSET  0x3c0
#define BOOT_CONSOLE_SPA_OFFSET  0x3c4
#define BOOT_CONSOLE_PATH_OFFSET 0x3a8

#ifndef __ASSEMBLY__
extern void pdc_console_init(void);
extern void setup_pdc(void);            /* in inventory.c */

/* wrapper-functions from pdc.c */

int pdc_add_valid(void *address);
int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len);
int pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info);
int pdc_iodc_read(unsigned long *actcnt, void *hpa, unsigned int index,
		  void *iodc_data, unsigned int iodc_data_size);
int pdc_system_map_find_mods(struct pdc_system_map_mod_info *pdc_mod_info,
			     struct pdc_module_path *mod_path, long mod_index);
int pdc_system_map_find_addrs(struct pdc_system_map_addr_info *pdc_addr_info, 
			      long mod_index, long addr_index);
int pdc_model_info(struct pdc_model *model);
int pdc_model_sysmodel(char  *name);
int pdc_model_cpuid(unsigned long *cpu_id);
int pdc_model_versions(unsigned long *versions, int id);
int pdc_cache_info(struct pdc_cache_info *cache);
#ifndef CONFIG_PA20
int pdc_btlb_info(struct pdc_btlb_info *btlb);
#endif
#ifndef __LP64__
int pdc_mem_map_hpa(struct pdc_memory_map *r_addr, struct pdc_module_path *mod_path);
#endif
int pdc_lan_station_id(char *lan_addr, void *net_hpa);

int pdc_pci_irt_size(unsigned long *num_entries, void *hpa);
int pdc_pci_irt(unsigned long num_entries, void *hpa, void *tbl);

int pdc_tod_read(struct pdc_tod *tod);
int pdc_tod_set(unsigned long sec, unsigned long usec);

#ifdef __LP64__
int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr, struct pdc_memory_table *tbl, 
		      unsigned long entries);
#endif

int pdc_do_firm_test_reset(unsigned long ftc_bitmap);
int pdc_do_reset(void);
void pdc_iodc_putc(unsigned char c);

int pdc_sti_call(unsigned long func, unsigned long flags,
                 unsigned long inptr, unsigned long outputr,
                 unsigned long glob_cfg);

#ifdef __LP64__
int pdc_pat_cell_get_number(struct pdc_pat_cell_num *cell_info);
int pdc_pat_cell_module(unsigned long *actcnt, unsigned long ploc, unsigned long mod,
			unsigned long view_type, void *mem_addr);
int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, void *hpa);
int pdc_pat_get_irt_size(unsigned long *num_entries, unsigned long cell_num);
int pdc_pat_get_irt(void *r_addr, unsigned long cell_num);
int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr, 
			    unsigned long count, unsigned long offset);

/********************************************************************
* PDC_PAT_CELL[Return Cell Module] memaddr[0] conf_base_addr
* ----------------------------------------------------------
* Bit  0 to 51 - conf_base_addr
* Bit 52 to 62 - reserved
* Bit       63 - endianess bit
********************************************************************/
#define PAT_GET_CBA(value) ((value) & 0xfffffffffffff000UL)

/********************************************************************
* PDC_PAT_CELL[Return Cell Module] memaddr[1] mod_info
* ----------------------------------------------------
* Bit  0 to  7 - entity type
*    0 = central agent,            1 = processor,
*    2 = memory controller,        3 = system bus adapter,
*    4 = local bus adapter,        5 = processor bus converter,
*    6 = crossbar fabric connect,  7 = fabric interconnect,
*    8 to 254 reserved,            255 = unknown.
* Bit  8 to 15 - DVI
* Bit 16 to 23 - IOC functions
* Bit 24 to 39 - reserved
* Bit 40 to 63 - mod_pages
*    number of 4K pages a module occupies starting at conf_base_addr
********************************************************************/
#define PAT_GET_ENTITY(value)	(((value) >> 56) & 0xffUL)
#define PAT_GET_DVI(value)	(((value) >> 48) & 0xffUL)
#define PAT_GET_IOC(value)	(((value) >> 40) & 0xffUL)
#define PAT_GET_MOD_PAGES(value)(((value) & 0xffffffUL)

#else
/* No PAT support for 32-bit kernels...sorry */
#define pdc_pat_get_irt_size(num_entries, cell_numn)	PDC_RET_NE_PROC
#define pdc_pat_get_irt(r_addr, cell_num)	PDC_RET_NE_PROC
#endif

extern void pdc_init(void);

#endif /* __ASSEMBLY__ */

#endif /* _PARISC_PDC_H */


--ZGiS0Q5IWpPtfppv--




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Xref: news.gmane.org gmane.linux.ports.parisc:10625

= Hello Mr. Bame,
= 
= I have two HP-Workstations (HP9000/700) and a (HP9000/712).
= And for both i need a PA-RISC-Linux CD-ROM !
= Where can get order the "Developer's Release CD-ROM" for PA-RISC-Linux?
= Can You send me a general Install-Instruction?

Please consult our web site, www.parisc-linux.org for lots of use
information, including whether your "HP9000/700" will be supported
(the 712 is).  We will be producing a new CD image in the next couple
of months from which you can create your own CD.

	-Paul Bame

= sincerely,
= 
= 		Joachim Kress
= 		
= Name: Joachim Kress
= Street: Querstrasse 6
= Postal: D-72074
= City: Tuebingen
= State: germany
= 
= 
= 




From - Thu Nov 08 21:17:03 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:10626

I wonder if it makes sense to pass the lock to mem_pdc_call and let
it do the lock/unlock rather than doing that in every caller to
mem_pdc_call.

	-P




From - Thu Nov 08 21:17:03 2018
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From: Paul Bame <bame@fc.hp.com>
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Subject: [parisc-linux] www.parisc-linux.org
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Xref: news.gmane.org gmane.linux.ports.parisc:10627

Hey our web site is pretty stale and I'm as guilty of neglecting it
as anyone.  I feel guilty referring new people there and wonder if
anyone has an interest in helping out?  I notice the ESIEE web site
(http://mkhppa1.esiee.fr/) is much fresher but perhaps not as complete.
Maybe we could work together on a superior web site?

Frustrated,

	-Paul Bame




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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] www.parisc-linux.org
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On Thu, Mar 29, 2001 at 11:02:31AM -0700, Paul Bame wrote:
> 
> Hey our web site is pretty stale and I'm as guilty of neglecting it
> as anyone.  I feel guilty referring new people there and wonder if
> anyone has an interest in helping out?  I notice the ESIEE web site
> (http://mkhppa1.esiee.fr/) is much fresher but perhaps not as complete.
> Maybe we could work together on a superior web site?

I think it has a large amount to do with the fact that the one person
who cared about it enough to keep it up to date (and chivvy others to
do the bits they were responsible for) was bypassed and had his opinions
ignored when the website was redesigned.

I'd like to see a technical website where we can put the information
that we feel is worth having and can feel good about referring people to.
Let the current site continue rotting into the usual mess that corporate
websites turn into.

> Frustrated,

Likewise.

-- 
Revolutions do not require corporate support.




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Paul Bame <bame@fc.hp.com> writes:

> We will be producing a new CD image in the next couple of months
> from which you can create your own CD.

I'm still catching up on the archives, but it would be nice if the cd
image to be was happy w/ the hp bootloader from the start rather than
fixing it afterwards. (I realize that it's not difficult to do, but i
did make an ass out of me and umption the first time i made a cd).

\p
---
Better look around you,check to see, that you're not conforming to
nonconformity! --- Pajama Slave Dancers





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From: Jes Sorensen <jes@linuxcare.com>
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>>>>> "Matthew" == Matthew Wilcox <matthew@wil.cx> writes:

Matthew> I'd like to see a technical website where we can put the
Matthew> information that we feel is worth having and can feel good
Matthew> about referring people to.  Let the current site continue
Matthew> rotting into the usual mess that corporate websites turn
Matthew> into.

Providing constructive criticism instead of whining like a spoiled
little kid will probably have a somewhat higher chance of making
things happen.

Jes




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On Thu, Mar 29, 2001 at 09:56:25PM +0200, Jes Sorensen wrote:
> Providing constructive criticism instead of whining like a spoiled
> little kid will probably have a somewhat higher chance of making
> things happen.

What're you doing that's constructive, Jes?  I'm writing code.

-- 
Revolutions do not require corporate support.




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From: Paul Bame <bame@fc.hp.com>
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= Paul Bame <bame@fc.hp.com> writes:
= 
= > We will be producing a new CD image in the next couple of months
= > from which you can create your own CD.
= 
= I'm still catching up on the archives, but it would be nice if the cd
= image to be was happy w/ the hp bootloader from the start rather than
= fixing it afterwards.

Can you tell me what you did that didn't work?  I don't understand
what went wrong well enough to do something different next time.

	-P




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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] PDC cleanup and encapsulation
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On Thu, Mar 29, 2001 at 10:48:26AM -0700, Paul Bame wrote:
> 
> I wonder if it makes sense to pass the lock to mem_pdc_call and let
> it do the lock/unlock rather than doing that in every caller to
> mem_pdc_call.
> 
> 	-P

This could be a possible option.  I chose not to do something similar
to do this for two reasons:

	1. The PDC call can determine the lock level (ie. spin_lock_irq()
           or spin_lock_irqsave()) depending upon if the PDC call can
           be made in interrupt context.

	2. Since pdc_result and pdc_result2 are globals, I used the
	   spin_lock to protect these variables.  That is why the
	   convert_to_wide() calls, etc are contained within the 
	   spin lock.

Maybe I was being paranoid about the locking, and your approach makes
more sense.  I was more interested in protecting data then holding
the lock for the minimum time so my approach might be draconian.  I
do not understand all the locking issues, but I'd be willing to
modify the code to put the lock in the mem_pdc_call if others agree.

Thanks,

- Ryan




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From: Thierry SIMONNET <simonnet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] www.parisc-linux.org
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Hi,                                                                   
                                                                      
I totally agree with you about working together to homogenize our web 
sites.                                                                
Have any suggestion? Perhaps, ESIEE could home and maintain some items
of a common                                                           
site?                                                                 
Regards                                                               
                                                                      
Thierry Simonnet                                                      
Groupe ESIEE - CCIP                                                   
                                                                      
Paul Bame wrote:                                                      
>                                                                     
> Hey our web site is pretty stale and I'm as guilty of neglecting it 
> as anyone.  I feel guilty referring new people there and wonder if  
> anyone has an interest in helping out?  I notice the ESIEE web site 
> (http://mkhppa1.esiee.fr/) is much fresher but perhaps not as       
complete.                                                             
> Maybe we could work together on a superior web site?                
>                                                                     
                                                                      
                                                                      




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From: "John Moser" <jmoser@erc.wisc.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Hello
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Xref: news.gmane.org gmane.linux.ports.parisc:10635

I'm new to the list, and looking for a little support getting the PALinux
0.5 iso to load on a J210XC 9000 box.  What's the usual form for posting
kernel panics to this list?  It's fairly long, and I wouldn't want to flood
everyone.

I get this kernel panic when booting off the ISO 0.5 image.

Thanks,
John Moser

--------------------------------
University of Wisconsin-Madison
Engine Research Center, Rm. 1011
Engineering Research
263-2761
Senior Systems Administrator
jmoser@erc.wisc.edu
--------------------------------





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From: "jean-yves.guillevic" <jean-yves.guillevic@wanadoo.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Hello PARISC-LINUX A short boot
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Hello All

I was given an old HP715 in good state but not working.
After a while..., i got a few char on the screen and no more.
(the machine was ready to work :-)
I build a linux-box with an old P75 grab some gz/tgz to build=20
a boot disk for this machine. (using  the PA-LINUX links thanks to all =
of contributors)
i connect a serial terminal. then it boot....:-):-)=20
but stop leaving me with the contents of CAPTURE.TXT ( 2 boots).
i plug in the graphic card : it does the same but on screen.

does someone can tell me about the status of the firmware of this =
machine???=20
shall i replace with=20
is there something to do on the hardware???
to me it is the paralel port or something to do with it.
i tryed two kernel :vmlinux-20010115 and vmlinux-20010305 but it does =
the same.
=20
i got a tape with a firmware patch ready to put in but i read that it is =
possible to build a kernel
without parallel support. (less risks for the machine)
where can i find the patchs between PDC ROM rev 1.0 and PDC ROM rev 1.6
if i make a rev 1.6 patch do i have to make a rev 1.5 rev 1.4 etc...?
who can tell me whitch solution is the best and why.

is the following text from your faq the solution for me
a.. I'm booting parisc linux on an early Series 700 workstation, and the =
machine hangs after printing:=20
  ASP version 1 at ..... found
What's going on?=20
This was a bug in the parallel port driver, which was fixed in CVS on =
2001-02-16. You can workaround the problem by using a newer kernel or by =
reconfiguring your kernel and removing support for the parallel port =
(CONFIG_PARPORT_GSC).=20

Salutations
jean-yves.guillevic@wanadoo.fr





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	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>

<META content=3Dtext/html;charset=3Diso-8859-1 =
http-equiv=3DContent-Type><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 =
Transitional//EN">
<META content=3D'"MSHTML 4.72.3612.1706"' name=3DGENERATOR>
<STYLE></STYLE>

</HEAD>
<BODY bgColor=3D#ffffff>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Hello All</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I was given an old HP715 in good state =
but not=20
working.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>After a while..., i got a few char on =
the screen=20
and no more.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>(the machine was ready to work =
:-)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I build a linux-box with an old P75 =
grab some=20
gz/tgz <FONT face=3DArial size=3D2>to build </FONT></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><FONT face=3DArial size=3D2>a boot disk =
for this=20
machine. </FONT></FONT><FONT face=3DArial size=3D2>(using&nbsp; the =
PA-LINUX links=20
thanks to all of contributors)</FONT><FONT face=3DArial =
size=3D2></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>i connect a serial terminal. =
</FONT><FONT=20
face=3DArial size=3D2>then it boot....:-):-) </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>but stop leaving me with the contents =
of=20
CAPTURE.TXT ( 2&nbsp;boots).</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>i plug in the graphic card : it does =
the same but=20
on screen.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>does someone can tell me about the =
status of the=20
firmware of this machine??? </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>shall i replace with </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>is there something to do on the=20
hardware???</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>to me it is the paralel port or =
something to do=20
with it.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>i tryed two kernel :</FONT><FONT =
face=3DArial=20
size=3D2>vmlinux-20010115 and vmlinux-20010305 but it does the =
same.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>i got a tape with a firmware patch =
ready to put in=20
but i read that&nbsp;it is possible to build a kernel</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>without parallel support. (less risks =
for the=20
machine)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>where can i find the patchs between PDC =
ROM rev 1.0=20
and PDC ROM rev 1.6</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>if i make a rev 1.6 patch do i have to =
make a rev=20
1.5 rev 1.4 etc...?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>who can tell me whitch solution is the =
best and=20
why.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>is the following text from your faq the =
solution=20
for me</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>
<LI>I'm booting parisc linux on an early Series 700 workstation, and the =
machine=20
hangs after printing: <PRE>  ASP version 1 at ..... found</PRE>What's =
going on?=20
<P>This was a bug in the parallel port driver, which was fixed in CVS on =

2001-02-16. You can workaround the problem by using a newer kernel or by =

reconfiguring your kernel and removing support for the parallel port=20
(CONFIG_PARPORT_GSC). </P></FONT></LI></DIV>
<DIV><FONT face=3DArial size=3D2>Salutations</FONT></DIV>
<DIV><FONT face=3DArial size=3D2><A=20
href=3D"mailto:jean-yves.guillevic@wanadoo.fr">jean-yves.guillevic@wanado=
o.fr</A></FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

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	name="Capture.txt"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="Capture.txt"




(c) Copyright.  Hewlett-Packard Company.  1992.
All rights reserved.
Portions of this code are (c) Copyright Samsung Electronics Co., Ltd, =
91, 92

PDC ROM rev. 1.0
IODC ROM rev. 1.0
64 MB of memory have been configured.


Selecting a system to boot.
To stop selection process, press and hold the ESCAPE key.....

Booting from:     scsi.2.0     MAXTOR  7213-SCSI

Soft booted.
palo ipl root@jygx mer mar 28 15:57:54 CEST 2001
0/vmlinux 2134906 bytes @ 0x44000
0/palo-cmdline '2/vmlinux HOME=3D/ TERM=3Dlinux console=3Dtty'
/dev/ida1  f0         32      16352
/dev/ida2  83     102400     311296
/dev/ida3  82      16384      86016
Kernel: partition 2 file /vmlinux
ext2 block size 1024
ext2_mount(partition 2) returns 0
ext2_open(/vmlinux) =3D 3
ELF32 executable
Entry 00100160 first 00100000 n 5
Segment 0 load 00100000 size 1426732 mediaptr 0x1000
Segment 1 load 0025e000 size 173080 mediaptr 0x15e000
Segment 2 load 0028c000 size 117508 mediaptr 0x189000
Segment 3 load 002ac000 size 8192 mediaptr 0x1a6000
Segment 4 load 002d7144 size 496 mediaptr 0x1a8144
branching to kernel entry point 0x00100160
PDC Console Initialized
The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02d8000
start_parisc(0x64d58,0x64d58,0x0,0x0)
PALO command line: 'HOME=3D/ TERM=3Dlinux console=3Dtty'
PALO initrd 0-0
model   00003130 00000481 00000000 00000000 7825e314 ffffffff 00000004 =
0000000a 0000000a
vers    00000008
CPUID   vers 0 rev 0
model   9000/715
led_init: CPU_HVERSION 313
Searching for devices in PDC firmware... processor hpa 0xfffbe000
 an older box...
Using Alex's odd 715/old exception, onboard graphics won't be =
inventoried!
Found devices:
1. Strider-33 Core BA (11) at 0xf082f000, versions 0xd, 0x0, 0x70, 0x0, =
0x0
2. Strider-33 Core SCSI (10) at 0xf0825000, versions 0xd, 0x0, 0x71, =
0x0, 0x0
3. Strider-33 Core LAN (802.3) (10) at 0xf0826000, versions 0xd, 0x0, =
0x72, 0x0, 0x0
4. Strider-33 Core HIL (10) at 0xf0821000, versions 0xd, 0x0, 0x73, 0x0, =
0x0
5. Strider-33 Core RS-232 (10) at 0xf0823000, versions 0xd, 0x0, 0x75, =
0x0, 0x0
6. Strider-33 Core RS-232 (10) at 0xf0822000, versions 0xd, 0x0, 0x75, =
0x0, 0x0
7. Strider-33 Core Centronics (10) at 0xf0824000, versions 0xd, 0x0, =
0x74, 0x0, 0x0
8. Strider-33 Audio (10) at 0xf1000000, versions 0xd, 0x0, 0x7b, 0x0, =
0x0
9. Strider-33 Core EISA (11) at 0xfc000000, versions 0xd, 0x0, 0x76, =
0x0, 0x0
10. Strider-33 (715S/33) (0) at 0xfffbe000, versions 0x313, 0x0, 0x4, =
0x0, 0x81
11. Strider-33 (707T) (1) at 0xfffbf000, versions 0x1d, 0x0, 0x9, 0x0, =
0x0
That's a total of 11 devices.
CPU(s): 1 x PA7100 (PCX-T) at 33.333500 MHz
Linux version 2.4.0-test10 (grundler@hpisp747) (gcc version 2.96 =
20000925 (experimental)) #39 Mon Jan 15 10:34:48 PST 2001
free_bootmem(0x2d8800, 0x3d27800)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 16384
zone(0): 8192 pages.
zone(1): 8192 pages.
zone(2): 0 pages.
Kernel command line: HOME=3D/ TERM=3Dlinux console=3Dtty
trap_init
Error reading tod clock
Calibrating delay loop... 33.18 BogoMIPS
Memory: 61460k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
LED (ASP-style) display at 00000000 registered
parport_init_chip: initialize bidirectional-mode.
=FF


Dumping Stack from c3fc8000 to c3fc8980:
8000 00000000 00000040 00000000 00000000 c027346c 00000000 00000000 =
ffffffff
8020 00000002 00000000 00000000 00000000 00000000 00000000 ffffffff =
c0273384
8040 c0273384 00000000 c02ac000 c02ac000 c027860c 00000000 00000000 =
00000000
8060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 =
00000000
8080 00000000 c02ac000 c02ac000 00000000 00000000 00000000 c02ac098 =
c02ac098
80a0 00000000 c02c7978 00000000 c3fc80ac c3fc80ac 00000000 00000000 =
00000000
80c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
80e0 c3fc8000 c011c0fc 00000000 00000003 00000000 00000000 00000031 =
00000000
8100 00000034 00000000 00000000 00000000 00000000 00000000 00000000 =
80000000
8120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
8140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
8160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
8180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
81a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
81c0 00000000 fffffeff 00000000 ffffffff 00000000 c027401c ffffffff =
ffffffff
81e0 ffffffff ffffffff ffffffff ffffffff 00800000 05000000 00000000 =
ffffffff
8200 ffffffff ffffffff 00000400 00000400 00000400 00000400 ffffffff =
ffffffff
8220 ffffffff ffffffff ffffffff ffffffff 00007377 61707065 72000000 =
00000000
8240 00000000 00000000 00000000 00000000 00000000 00000000 00004000 =
01984208
8260 01984208 c013e478 00008000 c3ffeba0 c0225e0c c0235e48 fc4ff000 =
00064d58
8280 00000000 c011a85c c02c6000 00004000 01984208 c02c6000 00000000 =
0004000a
82a0 c02734a0 0000000b 00000024 0000003c 0000003e c0273000 00000001 =
00000000
82c0 c01002a0 c02b2b4b 00000000 c02b2b6f 0000000b c02734a0 c0273000 =
08000058
82e0 00000004 000000ff 0000038c 00000000 f0823800 f0823800 f0823800 =
00000008
8300 002b2540 c025e000 00000000 009896b2 c02ac8c0 000068b8 00008000 =
fed7fdff
8320 fecf7e9e 193a4439 00400000 dc31c339 0004c010 480e9bd8 02005612 =
1945f5bf
8340 401088a0 06c09809 0730e552 42568065 817a0fc4 4c005111 80b84802 =
c17c726b
8360 1806b589 9700c1e7 9e10a080 d0905c5d 4110b902 421e2491 6882ac0f =
5b7c003f
8380 2902b518 50746140 2657e10c a1bda747 80140100 14c00111 9a091d40 =
8c404c45
83a0 0a166819 8094d301 02ca0801 94095019 c00c21b2 700210e9 23381802 =
c42003e6
83c0 20109003 18228004 634a0244 462444d0 2a92b201 8500c158 5d54041d =
5f9aa6d4
83e0 5100c200 d0140400 dc9c1908 0b016c94 00080174 b018052a 43666054 =
045d1205
8400 20c40029 03001010 08926810 d02038c1 32694520 bb585e7e 00000000 =
00000000
8420 c3fc8500 c0105c38 00000000 00000000 00000000 00000000 00000000 =
00000000
8440 c011a84c c011a850 634a0244 462444d0 00279000 00000000 c0278040 =
c0278064
8460 00000000 c0278204 00000000 00000000 00000000 c3fc8470 00000000 =
00000000
8480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
84a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
84c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
84e0 00000000 00000000 00000000 c0105c48 00000000 00000000 00000000 =
00000000
8500 c02ac000 00000000 c02ac640 00000000 00000000 00000000 00000000 =
00000000
8520 00000000 00000000 00000000 c01002b4 00000000 00000000 00000000 =
00000000
8540 00000000 00000000 00000000 00000000 c3fc8000 c027860c c02ac000 =
00000000
8560 c02ac640 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
8580 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
85a0 00000000 00000000 00000000 c028d0d8 00000000 00000000 00000000 =
00000000
85c0 c02ac640 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
85e0 00000000 00000000 00000000 c029ed20 00000000 00000000 00000000 =
00000000
8600 fc4ff000 c02c7800 c02ca000 c025e000 c02c6000 00000000 c02ac640 =
00000000
8620 00000000 00000000 00000000 c029f560 00000000 00000000 00000000 =
00000000
8640 c02ca000 c025e000 c02c6000 00000000 c02ac640 c3ffec20 00000000 =
00000000
8660 00000000 00000000 00000000 c02a29fc 00000000 00000000 00000000 =
00000000
8680 c02ca000 c025e000 c02c6000 00000000 c02ac640 c02736b0 c3fc30a0 =
00000000
86a0 00000000 00000000 00000000 c0109b90 00000000 00000000 00000000 =
00000000
86c0 00000000 00000000 fffbe000 00000003 00000023 c3fc47e0 00000000 =
c02a8698
86e0 c02c6b30 00000000 00000000 c0109b90 00000000 00000000 00000000 =
00000000
8700 00000006 c02a8930 c02c6bf0 c3fcf1a0 f0800000 00000001 c0251804 =
c0251808
8720 00000000 00000000 00000000 c029f930 00000000 00000000 00000000 =
00000000
8740 c02c6b30 00000000 c3fcf1a0 00000000 c3fcf1a0 f0824804 c025c424 =
c025c400
8760 001a5a59 001a5a59 c028d8e0 c02a297c c02c7800 c02c6800 c0265000 =
c02c6b30
8780 c02a8930 c02c6bf0 f0824800 00000000 00000000 00000000 00000041 =
00000058
87a0 ffffffff 001a5a59 c028d8e0 c3fc8788 c02c7800 c02c6800 c0265000 =
00000058
87c0 f0824800 f0824804 c3fc8764 c3fcf1a0 f0824800 c3fcf1a0 c025c423 =
c0273000
87e0 00000001 c02b2b71 00000004 c011a85c 00000022 c02b2b71 0000000b =
c02734a0
8800 00000000 0004000a c02734a0 0000000b 00000032 0000003c 0000003e =
c0273000
8820 00000001 c02b2b7d 00000004 c02b2b4b 00000031 c02b2b7d 0000000b =
c02734a0
8840 c0273000 08000058 00000004 000000ff 0000038c 00000000 f0823800 =
f0823800
8860 f0823800 00000008 c3fc3120 c3fce220 00000000 009896b2 c3fc8a40 =
000068b8
8880 00008000 fed7fdff fc4ff000 c02c7800 c02c6800 c0265000 00000058 =
f0824800
88a0 f0824804 1945f5bf 401088a0 06c09809 0730e552 42568065 817a0fc4 =
4c005111
88c0 80b84802 c17c726b 1806b589 9700c1e7 9e10a080 d0905c5d 4110b902 =
421e2491
88e0 6882ac0f 5b7c003f 2902b518 c02a2620 2657e10c a1bda747 80140100 =
14c00111
8900 00000058 f0824800 c3fc3120 c3fce220 c3fc8788 94095019 c00c21b2 =
700210e9
8920 23381802 c42003e6 20109003 c02a2380 634a0244 462444d0 2a92b201 =
8500c158
8940 0000000c c3fc8788 5100c200 d0140400 dc9c1908 0b016c94 00080174 =
b018052a
8960 43666054 045d1205 20c40029 c02a2478 08926810 d02038c1 32694520 =
bb585e7e

High Priority Machine Check (HPMC): Code=3D1 regs=3Dc0266080 =
(Addr=3D00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001011
r0-3     00000000 c01dd800 c02a24b8 c3fc8788
r4-7     0000002c c3fce220 f0824800 ffffffdf
r8-11    ffffffff 00000000 c028d8e0 001a5a59
r12-15   001a5a59 000ff000 f000015c 00000000
r16-19   00000000 08000058 00000004 0000000b
r20-23   000000ff 00000041 c3fc3000 0000000b
r24-27   ffffffff f0824800 f0824800 c025e000
r28-31   000000ff 00000080 c3fc8980 c012c984
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c01dd94c c01dd950
 IIR: e840c000    ISR: 00000000  IOR: c02a24b8
ORIG_R28: 00000000



(c) Copyright.  Hewlett-Packard Company.  1992.
All rights reserved.
Portions of this code are (c) Copyright Samsung Electronics Co., Ltd, =
91, 92

PDC ROM rev. 1.0
IODC ROM rev. 1.0
64 MB of memory have been configured.


Selecting a system to boot.
To stop selection process, press and hold the ESCAPE key.


(c) Copyright.  Hewlett-Packard Company.  1992.
All rights reserved.
Portions of this code are (c) Copyright Samsung Electronics Co., Ltd, =
91, 92

PDC ROM rev. 1.0
IODC ROM rev. 1.0
64 MB of memory have been configured.


Selecting a system to boot.
To stop selection process, press and hold the ESCAPE key.....

Booting from:     scsi.2.0     MAXTOR  7213-SCSI

Hard booted.
palo ipl root@jygx mer mar 28 15:57:54 CEST 2001
0/vmlinux 2134906 bytes @ 0x44000
0/palo-cmdline '2/vmlinux HOME=3D/ TERM=3Dlinux console=3Dtty'
/dev/ida1  f0         32      16352
/dev/ida2  83     102400     311296
/dev/ida3  82      16384      86016
Kernel: partition 2 file /vmlinux
ext2 block size 1024
ext2_mount(partition 2) returns 0
ext2_open(/vmlinux) =3D 3
ELF32 executable
Entry 00100160 first 00100000 n 5
Segment 0 load 00100000 size 1426732 mediaptr 0x1000
Segment 1 load 0025e000 size 173080 mediaptr 0x15e000
Segment 2 load 0028c000 size 117508 mediaptr 0x189000
Segment 3 load 002ac000 size 8192 mediaptr 0x1a6000
Segment 4 load 002d7144 size 496 mediaptr 0x1a8144
branching to kernel entry point 0x00100160
PDC Console Initialized
The 32-bit Kernel has started...
Enabled FP coprocessor
Free memory starts at: 0xc02d8000
start_parisc(0x64d58,0x64d58,0x0,0x0)
PALO command line: 'HOME=3D/ TERM=3Dlinux console=3Dtty'
PALO initrd 0-0
model   00003130 00000481 00000000 00000000 7825e314 ffffffff 00000004 =
0000000a 0000000a
vers    00000008
CPUID   vers 0 rev 0
model   9000/715
led_init: CPU_HVERSION 313
Searching for devices in PDC firmware... processor hpa 0xfffbe000
 an older box...
Using Alex's odd 715/old exception, onboard graphics won't be =
inventoried!
Found devices:
1. Strider-33 Core BA (11) at 0xf082f000, versions 0xd, 0x0, 0x70, 0x0, =
0x0
2. Strider-33 Core SCSI (10) at 0xf0825000, versions 0xd, 0x0, 0x71, =
0x0, 0x0
3. Strider-33 Core LAN (802.3) (10) at 0xf0826000, versions 0xd, 0x0, =
0x72, 0x0, 0x0
4. Strider-33 Core HIL (10) at 0xf0821000, versions 0xd, 0x0, 0x73, 0x0, =
0x0
5. Strider-33 Core RS-232 (10) at 0xf0823000, versions 0xd, 0x0, 0x75, =
0x0, 0x0
6. Strider-33 Core RS-232 (10) at 0xf0822000, versions 0xd, 0x0, 0x75, =
0x0, 0x0
7. Strider-33 Core Centronics (10) at 0xf0824000, versions 0xd, 0x0, =
0x74, 0x0, 0x0
8. Strider-33 Audio (10) at 0xf1000000, versions 0xd, 0x0, 0x7b, 0x0, =
0x0
9. Strider-33 Core EISA (11) at 0xfc000000, versions 0xd, 0x0, 0x76, =
0x0, 0x0
10. Strider-33 (715S/33) (0) at 0xfffbe000, versions 0x313, 0x0, 0x4, =
0x0, 0x81
11. Strider-33 (707T) (1) at 0xfffbf000, versions 0x1d, 0x0, 0x9, 0x0, =
0x0
That's a total of 11 devices.
CPU(s): 1 x PA7100 (PCX-T) at 33.333500 MHz
Linux version 2.4.0-test10 (grundler@hpisp747) (gcc version 2.96 =
20000925 (experimental)) #39 Mon Jan 15 10:34:48 PST 2001
free_bootmem(0x2d8800, 0x3d27800)
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 16384
zone(0): 8192 pages.
zone(1): 8192 pages.
zone(2): 0 pages.
Kernel command line: HOME=3D/ TERM=3Dlinux console=3Dtty
trap_init
Error reading tod clock
Calibrating delay loop... 33.18 BogoMIPS
Memory: 61460k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
LED (ASP-style) display at 00000000 registered
parport_init_chip: initialize bidirectional-mode.



Dumping Stack from c3fc8000 to c3fc8980:
8000 00000000 00000040 00000000 00000000 c027346c 00000000 00000000 =
ffffffff
8020 00000002 00000000 00000000 00000000 00000000 00000000 ffffffff =
c0273384
8040 c0273384 00000000 c02ac000 c02ac000 c027860c 00000000 00000000 =
00000000
8060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 =
00000000
8080 00000000 c02ac000 c02ac000 00000000 00000000 00000000 c02ac098 =
c02ac098
80a0 00000000 c02c7978 00000000 c3fc80ac c3fc80ac 00000000 00000000 =
00000000
80c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
80e0 c3fc8000 c011c0fc 00000000 00000003 00000000 00000000 00000031 =
00000000
8100 00000034 00000000 00000000 00000000 00000000 00000000 00000000 =
80000000
8120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
8140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
8160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
8180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
81a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
81c0 00000000 fffffeff 00000000 ffffffff 00000000 c027401c ffffffff =
ffffffff
81e0 ffffffff ffffffff ffffffff ffffffff 00800000 05000000 00000000 =
ffffffff
8200 ffffffff ffffffff 00000400 00000400 00000400 00000400 ffffffff =
ffffffff
8220 ffffffff ffffffff ffffffff ffffffff 00007377 61707065 72000000 =
00000000
8240 00000000 00000000 00000000 00000000 00000000 00000000 00004000 =
01984208
8260 01984208 c013e478 00008000 c3ffeba0 c0225e0c c0235e48 fc4ff000 =
00064d58
8280 00000000 c011a85c c02c6000 00004000 01984208 c02c6000 00000000 =
0004000a
82a0 c02734a0 0000000b 00000024 0000003c 0000003e c0273000 00000001 =
00000000
82c0 c01002a0 c02b2b4b 00000000 c02b2b6f 0000000b c02734a0 c0273000 =
08000058
82e0 f000069c 000000ff 0000038c 00000000 f0823800 f0823800 f0823800 =
00000008
8300 002b2540 c025e000 00000000 009896b2 c02ac8c0 000068b8 80018820 =
fe5759ff
8320 fedf7e9e 191a4439 00400000 8c21c139 00004010 480809c0 02001400 =
18019539
8340 40100000 02c08008 0330e140 40520065 81520504 04005011 80b84802 =
c13c726a
8360 18063001 930041a3 9c108000 d0005c5d 01103100 000e0401 6880ac0f =
481c0013
8380 2002a400 10746000 0014210c 21a42505 00140100 10800111 82091500 =
08400045
83a0 0a000809 8084d301 020a0801 84090009 c00c0032 60021009 03300802 =
44000024
83c0 00001000 18028004 20420200 42244490 2080a200 8400c050 5514040d =
5e92a4c4
83e0 41004200 c0140400 d4801800 01014884 00080024 0018050a 42462014 =
04140204
8400 20440001 02001010 00000810 90003801 02694100 bb58560c 00000000 =
00000000
8420 c3fc8500 c0105c38 00000000 00000000 00000000 00000000 00000000 =
00000000
8440 c011a84c c011a850 20420200 42244490 00279000 00000000 c0278040 =
c0278064
8460 00000000 c0278204 00000000 00000000 00000000 c3fc8470 00000000 =
00000000
8480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
84a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
84c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
84e0 00000000 00000000 00000000 c0105c48 00000000 00000000 00000000 =
00000000
8500 c02ac000 00000000 c02ac640 00000000 00000000 00000000 00000000 =
00000000
8520 00000000 00000000 00000000 c01002b4 00000000 00000000 00000000 =
00000000
8540 00000000 00000000 00000000 00000000 c3fc8000 c027860c c02ac000 =
00000000
8560 c02ac640 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
8580 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
85a0 00000000 00000000 00000000 c028d0d8 00000000 00000000 00000000 =
00000000
85c0 c02ac640 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
85e0 00000000 00000000 00000000 c029ed20 00000000 00000000 00000000 =
00000000
8600 fc4ff000 c02c7800 c02ca000 c025e000 c02c6000 00000000 c02ac640 =
00000000
8620 00000000 00000000 00000000 c029f560 00000000 00000000 00000000 =
00000000
8640 c02ca000 c025e000 c02c6000 00000000 c02ac640 c3ffec20 00000000 =
00000000
8660 00000000 00000000 00000000 c02a29fc 00000000 00000000 00000000 =
00000000
8680 c02ca000 c025e000 c02c6000 00000000 c02ac640 c02736b0 c3fc30a0 =
00000000
86a0 00000000 00000000 00000000 c0109b90 00000000 00000000 00000000 =
00000000
86c0 00000000 00000000 fffbe000 00000003 00000023 c3fc47e0 00000000 =
c02a8698
86e0 c02c6b30 00000000 00000000 c0109b90 00000000 00000000 00000000 =
00000000
8700 00000006 c02a8930 c02c6bf0 c3fcf1a0 f0800000 00000001 c0251804 =
c0251808
8720 00000000 00000000 00000000 c029f930 00000000 00000000 00000000 =
00000000
8740 c02c6b30 00000000 c3fcf1a0 00000000 c3fcf1a0 f0824804 c025c424 =
c025c400
8760 001a5a59 001a5a59 c028d8e0 c02a297c c02c7800 c02c6800 c0265000 =
c02c6b30
8780 c02a8930 c02c6bf0 f0824800 00000000 00000001 00000000 00000041 =
00000058
87a0 ffffffff 001a5a59 c028d8e0 c3fc8788 c02c7800 c02c6800 c0265000 =
00000058
87c0 f0824800 f0824804 c3fc8764 c3fcf1a0 f0824800 c3fcf1a0 c025c423 =
c0273000
87e0 00000001 c02b2b71 00000004 c011a85c 00000022 c02b2b71 0000000b =
c02734a0
8800 00000000 0004000a c02734a0 0000000b 00000032 0000003c 0000003e =
c0273000
8820 00000001 c02b2b7d 00000004 c02b2b4b 00000031 c02b2b7d 0000000b =
c02734a0
8840 c0273000 08000058 f000069c 000000ff 0000038c 00000000 f0823800 =
f0823800
8860 f0823800 00000008 c3fc3120 c3fce220 00000000 009896b2 c3fc8a40 =
000068b8
8880 80018820 fe5759ff fc4ff000 c02c7800 c02c6800 c0265000 00000058 =
f0824800
88a0 f0824804 18019539 40100000 02c08008 0330e140 40520065 81520504 =
04005011
88c0 80b84802 c13c726a 18063001 930041a3 9c108000 d0005c5d 01103100 =
000e0401
88e0 6880ac0f 481c0013 2002a400 c02a2620 0014210c 21a42505 00140100 =
10800111
8900 00000058 f0824800 c3fc3120 c3fce220 c3fc8788 84090009 c00c0032 =
60021009
8920 03300802 44000024 00001000 c02a2380 20420200 42244490 2080a200 =
8400c050
8940 0000000c c3fc8788 41004200 c0140400 d4801800 01014884 00080024 =
0018050a
8960 42462014 04140204 20440001 c02a2478 00000810 90003801 02694100 =
bb58560c

High Priority Machine Check (HPMC): Code=3D1 regs=3Dc0266080 =
(Addr=3D00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001011
r0-3     00000000 c01dd800 c02a24b8 c3fc8788
r4-7     0000002c c3fce220 f0824800 ffffffdf
r8-11    ffffffff 00000000 c028d8e0 001a5a59
r12-15   001a5a59 000ff000 f000015c 00000000
r16-19   00000001 08000058 f000069c 0000000b
r20-23   000000ff 00000041 c3fc3000 0000000b
r24-27   ffffffff f0824800 f0824800 c025e000
r28-31   000000ff 00000080 c3fc8980 c012c984
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: c01dd94c c01dd950
 IIR: e840c000    ISR: 00000000  IOR: c02a24b8
ORIG_R28: 00000000

------=_NextPart_000_0090_01C0B972.C1511260--





From - Thu Nov 08 21:17:04 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Hello PARISC-LINUX A short boot
Date: Fri, 30 Mar 2001 18:34:50 -0700
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Cc: parisc-linux@lists.parisc-linux.org
To: "jean-yves.guillevic" <jean-yves.guillevic@wanadoo.fr>
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Fri Mar 30 18:40:36 2001
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In-Reply-To: Your message of "Fri, 30 Mar 2001 23:40:08 +0200."
             <009401c0b961$fec40780$140101a8@home233> 
Xref: news.gmane.org gmane.linux.ports.parisc:10637

jean-yves.guillevic wrote:
> I was given an old HP715 in good state but not working.

Which model?
(From the boot log I gather it's a 715S/33)
The rev of firmware you need will depend on which 715 model you have.

...
> where can i find the patchs between PDC ROM rev 1.0 and PDC ROM rev 1.6

I updated the FAQ last year which answers this question:
http://lists.parisc-linux.org/pipermail/parisc-linux/2000-November/009988.html

Note: The FAQ now lives at http://www.parisc-linux.org/faq/index.html

> if i make a rev 1.6 patch do i have to make a rev 1.5 rev 1.4 etc...?

No.

> who can tell me whitch solution is the best and why.

Personally, I would update the firmware on the machine in any case. 
(why use a version with know bugs when a less buggy vers is avail free?)
But read the FAQ and think about it carefully first.

grant

.ps Could you not include html version in your mail?

> <DIV><FONT face=3DArial size=3D2>if i make a rev 1.6 patch do i have to =
> make a rev=20
> 1.5 rev 1.4 etc...?</FONT></DIV>

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:17:04 2018
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From: Konstantinos Margaritis <markos@feanor.nuclear.demokritos.gr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/80 woes
Date: Sat, 31 Mar 2001 20:35:20 +0300 (EEST)
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Xref: news.gmane.org gmane.linux.ports.parisc:10638

Hi,
  I still have trouble with my 715/80 recognizing my ps/2 keyboard, but I
did a little searching and thought that maybe someone more knowledgeable
might help.

For a start when I turn on the machine the status leds are like this:

oxoooooxx

x: on, o: off

the last one is the power led (obviously on)

ok. now the machine just reports

Failed to initialize a keyboard
Fix the keyboard and cycle power

as I previously reported, and it just keeps changes screen resolution (I
believe I have to press TAB or SPACE to make this stop, but the keyboard
does not work).

Then I press the TOC button, which is supposed to act like a reset. Then
screen goes blank, disks spin like crazy and now the leds become:

oxxoxxoox

now, I was looking to a 720 users guide pdf -thinking that the led
combinations are the same- and i could not find this particular
combination. instead i found that 

oxxoooooo is indicative to a faulty SIMM (which it is not, I tried it on a
712 and it worked).

Anyone has any ideas? Can I force the 715 to use the serial for console?

Any help appreciated.

Konstantinos Margaritis





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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] searchable archives?
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Xref: news.gmane.org gmane.linux.ports.parisc:10639

Hey everyone,

the first hurdle to running up a hp workstation is finally behind me, I 
have a working i386 box :).

I'm not sure if it's been asked before, but when I went to the web 
site, I couldn't find a link to, if they exist, searchable list archives.

Anyway, maybe someone can answer me in their reply, what is 
needed for the serial cable between the i386 and parisc box?

Is it just a plain old null modem cable?

If not what do I have to ask for to make sure that i can connect to 
the serial port of the HP box?

Thanks,


Pete.





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From: "Pete" <plaven@ozemail.com.au>
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Subject: [parisc-linux] searchable archives?
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Xref: news.gmane.org gmane.linux.ports.parisc:10640

Hey everyone,

the first hurdle to running up a hp workstation is finally behind me, I 
have a working i386 box :).

I'm not sure if it's been asked before, but when I went to the web 
site, I couldn't find a link to, if they exist, searchable list archives.

Anyway, maybe someone can answer me in their reply, what is 
needed for the serial cable between the i386 and parisc box?

Is it just a plain old null modem cable?

If not what do I have to ask for to make sure that i can connect to 
the serial port of the HP box?

Thanks,


Pete.





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From: Christian R Molls <chris@coredump.rrz.uni-koeln.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] searchable archives?
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Xref: news.gmane.org gmane.linux.ports.parisc:10641

* Pete <plaven@ozemail.com.au> [010401 13:38]:

> I'm not sure if it's been asked before, but when I went to the web 
> site, I couldn't find a link to, if they exist, searchable list archives.

There is (at least) one. Try this:

http://puffin.external.hp.com/cgi-bin/mailgrep

> Anyway, maybe someone can answer me in their reply, what is needed for
> the serial cable between the i386 and parisc box?  Is it just a plain
> old null modem cable?

Yep.

> If not what do I have to ask for to make sure that i can connect to 
> the serial port of the HP box?

Have a look here for a description of how to setup a 712 to do console
output via RS232:

http://puffin.external.hp.com/mailing-lists/parisc-linux/1999/12-Dec/0091.html

Best Regards,
Chris




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From: dann <dannf@dannf.org>
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Subject: [parisc-linux] RE: searchable archives?
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Xref: news.gmane.org gmane.linux.ports.parisc:10642

> I'm not sure if it's been asked before, but when I went to the web 
> site, I couldn't find a link to, if they exist, searchable list archives.

	there's an htdig search form at http://lists.parisc-linux.org/
-- 

dannf@dannf.org




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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New Kernel & SCSI problem on 720
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Xref: news.gmane.org gmane.linux.ports.parisc:10643

Hi PARISC/Linux hackers !

Now I built up a new C-x-tool-chain and a new kernel, and *now*
I have problems with SCSI on the 720. I had not before a kernel
about a month ago. The only problem I had in those days was
a defect floppy-scsi i/f card. 

For faster boot, all disks are disconnected. The older kernels 
never had a problem, now I have one...

Log output below.

Independent of theSCSI problem, I cannot start `init'. 
Where does this breakpoint come from ?

With friendly regards

	Christoph Plattner



Hard booted.
palo ipl root@didymos.pladom1.at Tue Apr  3 00:25:26 CEST 2001
0/vmlinux 2491775 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=vt100 root=/dev/nfs console=ttyS0'
Kernel: partition 0 file /vmlinux
ELF32 executable
Entry 00100170 first 00100000 n 5
Segment 0 load 00100000 size 1351880 mediaptr 0x1000
Segment 1 load 0024c000 size 175952 mediaptr 0x14c000
Segment 2 load 00278000 size 230488 mediaptr 0x177000
Segment 3 load 002b4000 size 8192 mediaptr 0x1b0000
Segment 4 load 002de188 size 69024 mediaptr 0x1b2188
branching to kernel entry point 0x00100170
PDC Console Initialized
Linux version 2.4.0 (root@didymos.pladom1.at) (gcc version 3.0 20010315
(prerelease)) #2 Tue Apr 3 00:28:20 CEST 2001
FP[0] enabled: Rev 3 Model 0
The 32-bit Kernel has started...
Determining PDC firmware type: Older Legacy Box
setup_cmdline(0x64cc4,0x64cc4,0x0,0x0)
PALO command line: 'HOME=/ TERM=vt100 root=/dev/nfs console=ttyS0'
PALO initrd 0-0
model   00002000 00000481 00000000 00000000 0234072e 000011f4 00000004
0000000d 00000000
vers    00000003
CPUID   vers 0 rev 0
model   9000/720
Total Memory: 64 Mb
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf8000000, versions 0x4, 0x0, 0x77, 0x0,
0x0
2. Cobra Core BA (11) at 0xf082f000, versions 0x4, 0x0, 0x70, 0x0, 0x0
3. Cobra Core SCSI (10) at 0xf0825000, versions 0x4, 0x0, 0x71, 0x0, 0x0
4. Cobra Core LAN (802.3) (10) at 0xf0826000, versions 0x4, 0x0, 0x72,
0x0, 0x0
5. Cobra Core HIL (10) at 0xf0821000, versions 0x4, 0x0, 0x73, 0x0, 0x0
6. Cobra Core RS-232 (10) at 0xf0823000, versions 0x4, 0x0, 0x75, 0x0,
0x0
7. Cobra Core RS-232 (10) at 0xf0822000, versions 0x4, 0x0, 0x75, 0x0,
0x0
8. Cobra Core Centronics (10) at 0xf0824000, versions 0x4, 0x0, 0x74,
0x0, 0x0
9. Cobra (720) (0) at 0xfffbe000, versions 0x200, 0x0, 0x4, 0x0, 0x81
10. Cobra (1) at 0xfffbf000, versions 0x13, 0x0, 0x9, 0x0, 0x0
That's a total of 10 devices.
CPU(s): 1 x PA7000 (PCX-S) at 50.000000 MHz
Kernel command line: HOME=/ TERM=vt100 root=/dev/nfs console=ttyS0
Error reading tod clock
Calibrating delay loop... 49.76 BogoMIPS
Memory: 62396k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
LED (ASP-style) display at f0800020 registered
Found i82596 at 0xf0826000, IRQ 87
early initialization of device eth0 is deferred
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
request_module[parport_lowlevel]: Root fs not mounted
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 24 64 06 IRQ 87.
82596.c $Revision: 1.15 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
lp0: using parport0 (interrupt-driven).
SCSI subsystem driver Revision: 1.00
sim700: Couldn't get consistent shared memory
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
Post test1, istat 05, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: WARNING: target data areas are not dma coherent!
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID0
scsi0: Unable to send Bus Device Reset for target 0
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID1
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID1
scsi0: Unable to send Bus Device Reset for target 1
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID1
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID2
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID2
scsi0: Unable to send Bus Device Reset for target 2
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID2
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID3
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID3
scsi0: Unable to send Bus Device Reset for target 3
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID3
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID4
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID4
scsi0: Unable to send Bus Device Reset for target 4
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID4
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID5
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID5
scsi0: Unable to send Bus Device Reset for target 5
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID5
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID6
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID6
scsi0: Unable to send Bus Device Reset for target 6
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID6
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
eth0: link ok.
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 196.1.1.20, my address is 196.1.1.110
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 196.1.1.20
Looking up port of RPC 100005/2 on 196.1.1.20
VFS: Mounted root (nfs filesystem) readonly.
break 0,0: pid=9 command='init'
init[9]: Breakpoint 0

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 102de010 00000000 00000000
r4-7     00000000 00000000 00000000 00000000
r8-11    00000000 00000000 00000000 00000000
r12-15   00000000 00000000 00000000 10125434
r16-19   13f1c5c0 13f1c000 102b4000 00000001
r20-23   102efcc0 102efcc0 10022780 102efcc0
r24-27   0000002e 00001000 00000000 1024c010
r28-31   00000000 00000000 13f1c9c0 10131288
sr0-3    00000000 00000000 00000000 00000001
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 00000000 00000004
 IIR: 00000000    ISR: 00000000  IOR: 00000000
ORIG_R28: 00000000





-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




From - Thu Nov 08 21:17:04 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] New Kernel & SCSI problem on 720
Date: Mon, 2 Apr 2001 23:43:09 +0100
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To: Christoph Plattner <christoph.plattner@dot.at>
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Xref: news.gmane.org gmane.linux.ports.parisc:10644

On Tue, Apr 03, 2001 at 12:35:40AM +0200, Christoph Plattner wrote:
> Hi PARISC/Linux hackers !
> 
> Now I built up a new C-x-tool-chain and a new kernel, and *now*
> I have problems with SCSI on the 720. I had not before a kernel

Just fixed the scsi problem about 10 minutes ago, commiting now.

Richard


If you can't wait:


RCS file: /home/cvs/parisc/linux/drivers/scsi/sim700.c,v
retrieving revision 1.25
diff -u -r1.25 sim700.c
--- sim700.c    2001/03/20 07:04:51     1.25
+++ sim700.c    2001/04/02 22:36:25
@@ -1254,7 +1254,7 @@
            resume_offset = Ent_reselect;
        }
        else if (hostdata->chip == 700 && (dstat & DSTAT_ABRT)) {
-           u32 offset = (dsp - low32(targdata->ba->script)/4);
+           u32 offset = (dsp - low32(targdata->ba->script))/4;
            if (offset == Ent_reselect/4 + 4) {
                DEB(DEB_DISC, printk("scsi%d: wait reselect aborted\n", host->host_no));
                resume_offset = Ent_patch_selection;





From - Thu Nov 08 21:17:04 2018
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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New kernel on 720 + Pa-Linux-0.5: Breakpoint ?
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Xref: news.gmane.org gmane.linux.ports.parisc:10645

What this in the new kernel ?
A manually inserted breakpoint ?

Have I to do something in the code to remove ?

Output:

NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.  
Looking up port of RPC 100003/2 on 196.1.1.20
Looking up port of RPC 100005/2 on 196.1.1.20
VFS: Mounted root (nfs filesystem) readonly.
break 0,0: pid=9 command='init'
init[9]: Breakpoint 0

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 102de010 00000000 00000000
r4-7     00000000 00000000 00000000 00000000
r8-11    00000000 00000000 00000000 00000000
r12-15   00000000 00000000 00000040 10125434
r16-19   13f1c5c0 13f1c000 00000004 00000001
r20-23   102efcc0 102efcc0 10022760 102efcc0
r24-27   0000002e 00001000 00000000 1024c010
r28-31   00000000 00000000 13f1c9c0 10131288
sr0-3    00000000 00000000 00000000 00000001
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 00000000 00000004
 IIR: 00000000    ISR: 00000000  IOR: 00000000
ORIG_R28: 00000000

<here the system halts>


On a kernel a month ago everthing was ok.
Now the SCSI problem and system does not boot correctly !

Log below.

With friendly regards	
	Christoph P.


Soft booted.
palo ipl root@didymos.pladom1.at Tue Apr  3 00:25:26 CEST 2001
0/vmlinux 2491775 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=vt100 root=/dev/nfs console=ttyS0'
Kernel: partition 0 file /vmlinux
ELF32 executable
Entry 00100170 first 00100000 n 5
Segment 0 load 00100000 size 1351880 mediaptr 0x1000
Segment 1 load 0024c000 size 175952 mediaptr 0x14c000
Segment 2 load 00278000 size 230488 mediaptr 0x177000
Segment 3 load 002b4000 size 8192 mediaptr 0x1b0000
Segment 4 load 002de188 size 69024 mediaptr 0x1b2188
branching to kernel entry point 0x00100170
PDC Console Initialized
Linux version 2.4.0 (root@didymos.pladom1.at) (gcc version 3.0 20010315
(prerelease)) #2 Tue Apr 3 00:28:20 CEST 2001
FP[0] enabled: Rev 3 Model 0
The 32-bit Kernel has started...
Determining PDC firmware type: Older Legacy Box
setup_cmdline(0x64cc4,0x64cc4,0x0,0x0)
PALO command line: 'HOME=/ TERM=vt100 root=/dev/nfs console=ttyS0'
PALO initrd 0-0
model   00002000 00000481 00000000 00000000 0234072e 000011f4 00000004
0000000d 00000000
vers    00000003
CPUID   vers 0 rev 0
model   9000/720
Total Memory: 64 Mb
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf8000000, versions 0x4, 0x0, 0x77, 0x0,
0x0
2. Cobra Core BA (11) at 0xf082f000, versions 0x4, 0x0, 0x70, 0x0, 0x0
3. Cobra Core SCSI (10) at 0xf0825000, versions 0x4, 0x0, 0x71, 0x0, 0x0
4. Cobra Core LAN (802.3) (10) at 0xf0826000, versions 0x4, 0x0, 0x72,
0x0, 0x0
5. Cobra Core HIL (10) at 0xf0821000, versions 0x4, 0x0, 0x73, 0x0, 0x0
6. Cobra Core RS-232 (10) at 0xf0823000, versions 0x4, 0x0, 0x75, 0x0,
0x0
7. Cobra Core RS-232 (10) at 0xf0822000, versions 0x4, 0x0, 0x75, 0x0,
0x0
8. Cobra Core Centronics (10) at 0xf0824000, versions 0x4, 0x0, 0x74,
0x0, 0x0
9. Cobra (720) (0) at 0xfffbe000, versions 0x200, 0x0, 0x4, 0x0, 0x81
10. Cobra (1) at 0xfffbf000, versions 0x13, 0x0, 0x9, 0x0, 0x0
That's a total of 10 devices.
CPU(s): 1 x PA7000 (PCX-S) at 50.000000 MHz
Kernel command line: HOME=/ TERM=vt100 root=/dev/nfs console=ttyS0
Error reading tod clock
Calibrating delay loop... 49.76 BogoMIPS
Memory: 62396k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
LED (ASP-style) display at f0800020 registered
Found i82596 at 0xf0826000, IRQ 87
early initialization of device eth0 is deferred
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
request_module[parport_lowlevel]: Root fs not mounted
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 24 64 06 IRQ 87.
82596.c $Revision: 1.15 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
lp0: using parport0 (interrupt-driven).
SCSI subsystem driver Revision: 1.00
sim700: Couldn't get consistent shared memory
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
Post test1, istat 05, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: WARNING: target data areas are not dma coherent!
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID0
scsi0: Unable to send Bus Device Reset for target 0
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID1
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID1
scsi0: Unable to send Bus Device Reset for target 1
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID1
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID2
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID2
scsi0: Unable to send Bus Device Reset for target 2
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID2
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID3
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID3
scsi0: Unable to send Bus Device Reset for target 3
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID3
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID4
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID4
scsi0: Unable to send Bus Device Reset for target 4
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID4
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID5
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID5
scsi0: Unable to send Bus Device Reset for target 5
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID5
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID6
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID6
scsi0: Unable to send Bus Device Reset for target 6
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Bad dsp on abort, 0x00057458, offset 0x41858
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
scsi0: Failing command for ID6
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
eth0: link ok.
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 196.1.1.20, my address is 196.1.1.110
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 196.1.1.20
Looking up port of RPC 100005/2 on 196.1.1.20
VFS: Mounted root (nfs filesystem) readonly.
break 0,0: pid=9 command='init'
init[9]: Breakpoint 0

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 102de010 00000000 00000000
r4-7     00000000 00000000 00000000 00000000
r8-11    00000000 00000000 00000000 00000000
r12-15   00000000 00000000 00000040 10125434
r16-19   13f1c5c0 13f1c000 00000004 00000001
r20-23   102efcc0 102efcc0 10022760 102efcc0
r24-27   0000002e 00001000 00000000 1024c010
r28-31   00000000 00000000 13f1c9c0 10131288
sr0-3    00000000 00000000 00000000 00000001
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 00000000 00000004
 IIR: 00000000    ISR: 00000000  IOR: 00000000
ORIG_R28: 00000000





-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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Subject: [parisc-linux] request_region()
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My 715/old, with a cvs head kernel, has no entries in /proc/ioports.
If I change our IO_SPACE_LIMIT in io.h from 0x00ffffff to 0xfffffff,
I get

apollo:~# cat /proc/ioports 
f0800000-f08fffff : ASP
  f0800000-f0800013 : reserved
  f0800020-f0800020 : led_data
  f0824800-f0824802 : parport0
  f0826000-f0826010 : i82596
apollo:~# 


(others won't see the i82596 entry, that is local to my tree)


So, normally they don't show up because their addresses are above
IO_SPACE_LIMIT, and luckily none of them check for error returns
from request_region().

I also have:

apollo:~# cat /proc/iomem 
f0825100-f082513f : sim700


Should all that ASP related stuff be doing a request_mem_region()
so they show up in /proc/iomem rather than /proc/ioports?

If so, does that have implications for EISA devices which will appear
under ASP, where we might want to use exisiting drivers that do
request_region()?

from io.h:

/* IO Port space is :      BBiiii   where BB is HBA number. */
#define IO_SPACE_LIMIT 0x00ffffff


Richard





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Subject: Re: [parisc-linux] New Kernel & SCSI problem on 720
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Perfect. After CVS update (now), the kernel SCSI problem is fixed.
But the other problem with the "Breakpoint 0" in `init' (pid=9 ?,
pid is normally 1, but the things comparable with "kernel threads"
have low numbers and are contolled by init ....) is still there,
but has nothing to do with SCSI.

Thanks, good work

	Christoph P.


Richard Hirst wrote:
> 
> On Tue, Apr 03, 2001 at 12:35:40AM +0200, Christoph Plattner wrote:
> > Hi PARISC/Linux hackers !
> >
> > Now I built up a new C-x-tool-chain and a new kernel, and *now*
> > I have problems with SCSI on the 720. I had not before a kernel
> 
> Just fixed the scsi problem about 10 minutes ago, commiting now.
> 
> Richard
> 
> If you can't wait:
> 
> RCS file: /home/cvs/parisc/linux/drivers/scsi/sim700.c,v
> retrieving revision 1.25
> diff -u -r1.25 sim700.c
> --- sim700.c    2001/03/20 07:04:51     1.25
> +++ sim700.c    2001/04/02 22:36:25
> @@ -1254,7 +1254,7 @@
>             resume_offset = Ent_reselect;
>         }
>         else if (hostdata->chip == 700 && (dstat & DSTAT_ABRT)) {
> -           u32 offset = (dsp - low32(targdata->ba->script)/4);
> +           u32 offset = (dsp - low32(targdata->ba->script))/4;
>             if (offset == Ent_reselect/4 + 4) {
>                 DEB(DEB_DISC, printk("scsi%d: wait reselect aborted\n", host->host_no));
>                 resume_offset = Ent_patch_selection;

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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Subject: Re: [parisc-linux] New kernel on 720 + Pa-Linux-0.5: Breakpoint ?
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On Tue, Apr 03, 2001 at 12:51:32AM +0200, Christoph Plattner wrote:
> What this in the new kernel ?
> A manually inserted breakpoint ?

No, you need new user space stuff.  It looks like there will be a
new base tarball Real Soon Now, so it might be easiest to wait a
few days for that.  Alternatively you could try the file system
at

http://mkhppa1.esiee.fr/en/download.html

which is pretty up to date - havn't tried that myself though.

Richard





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Subject: Re: [parisc-linux] New kernel on 720 + Pa-Linux-0.5: Breakpoint ?
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On Tue, Apr 03, 2001 at 12:17:43AM +0100, Richard Hirst wrote:
> On Tue, Apr 03, 2001 at 12:51:32AM +0200, Christoph Plattner wrote:
> > What this in the new kernel ?
> > A manually inserted breakpoint ?
> 
> No, you need new user space stuff.  It looks like there will be a

Why do you say that?  From:

sr0-3    00000000 00000000 00000000 00000001
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 00000000 00000004

it looks like it's a kernel null pointer dereference.

> new base tarball Real Soon Now, so it might be easiest to wait a
> few days for that.  Alternatively you could try the file system
> at
> 
> http://mkhppa1.esiee.fr/en/download.html
> 
> which is pretty up to date - havn't tried that myself though.

Works well for me.  Though as you say there's a new nfsroot out RSN.

-- 
Revolutions do not require corporate support.




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Hi folks:

I have recently "acquired" a couple of old 735/xxx's, and I wish to run
Linux on these.
I have no experience with these machines whatsoever, my only experience is
with PCs, and Sun and IBM RS/6000 as unix-users (NOT as sysadmin). I have
run Linux on a PC before, so I am not totally alien to sysadmin. Oh, and I'm
an electronics engineer, so I have no problem with writing (average) code or
fiddling with electronics.

Firstly, I have a couple of questions if someone would be so kind as to help
me out:

* These boxes seem to have no indication whether they are 735/125 or 735/99
- how do I find out which they are?

* I don't know how much memory they have, how do I find this out? They have
maybe half of the memory expansion slots filled.

* I have no HIL keyboard or mouse, is there a way to make a HIL-to-PS/2
adapter so I can have a k/b and mouse at the console, or am I better off
using a serial terminal?

* These machines have no graphics output, how can I tell if they're alive?
Serial cable to a terminal (9600-N-1)?

* These machines have only the FDDI(?) optical network. I'm not sure how to
connect these to my ethernet (if at all), or am I better off adding an ISA
or EISA network card to the boxes?

* Can I add an ISA or EISA network card to the boxes, and will it be
recognised? Drivers?

* Has anyone done any work on a boot ROM in place of the "BIOS" (Yes, I know
it's not called a bios, but I can't remember the name off-hand...), so the
serial link isn't needed. That is, is there a way to have some startup code
in the ROM that will immediately point the box to the NFS share where it's
to get its info? What about a boot ROM on a network card? Is this even
possible?

* Can you boot these things straight off the SCSI disk? Is there a bootable
disk image, that would mean the network isn't needed straight away?

* Is there a basic "getting started" guide that I can use in order to boot
and have a bit of a play? What's the minimum I would need to do this?

* I read on the web site that there is no X server for this machine being
developed, is X available at all? That is, if I have an X server on another
machine, and assuming I have some networking setup, can I use remote X apps
(the way X is supposed to be...)?

I have a fast internet link and CD burner at work, so I have no problem
getting whole disk images if I need to.

Thanks in advance for the help, I can't think of any more questions for
now...

Cheers,
Matt van de Werken.




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Subject: Re: [parisc-linux] New kernel on 720 + Pa-Linux-0.5: Breakpoint ?
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On Tue, Apr 03, 2001 at 12:27:49AM +0100, Matthew Wilcox wrote:
> On Tue, Apr 03, 2001 at 12:17:43AM +0100, Richard Hirst wrote:
> > On Tue, Apr 03, 2001 at 12:51:32AM +0200, Christoph Plattner wrote:
> > > What this in the new kernel ?
> > > A manually inserted breakpoint ?
> > 
> > No, you need new user space stuff.  It looks like there will be a
> 
> Why do you say that?  From:
> 
> sr0-3    00000000 00000000 00000000 00000001
> sr4-7    00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 00000000 00000004
> 
> it looks like it's a kernel null pointer dereference.

You might well be right; it just reminded me of one of the problems
I saw on my 715/old with bad spinlock alignment.

> > new base tarball Real Soon Now, so it might be easiest to wait a
> > few days for that.  Alternatively you could try the file system
> > at
> > 
> > http://mkhppa1.esiee.fr/en/download.html
> > 
> > which is pretty up to date - havn't tried that myself though.
> 
> Works well for me.  Though as you say there's a new nfsroot out RSN.

OK, I'm not sure when that was produced relative to my latest glibc
spinlock alignment fix though.

Richard





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I'm not using PA-RISC Linux, yet, but I hope to be soon.  I'm been using
ix86 linux for a few years, and HP-UX for 15 years.  I deal with 700
series hardware everyday at work, mostly 715s, 725s, and 745s.

} I have recently "acquired" a couple of old 735/xxx's, and I wish to run
} Linux on these.
} 
} * These boxes seem to have no indication whether they are 735/125 or 735/99
} - how do I find out which they are?

If they aren't labeled as "735/125" or "735/99" they should be 100MHz.


} * I don't know how much memory they have, how do I find this out? They have
} maybe half of the memory expansion slots filled.

The boot screen should print the memory amount almost first thing.  The
735s use different ram than all the other 700s, so I don't know the part
numbers.  If you tell me I might be able to check (A2575-60001 is a 32MB
card for the other 700s, look for that kind of a number).
Do the RAM cards have ICs loaded on boths sides or only 1?  How many ICs
on each side?

} * I have no HIL keyboard or mouse, is there a way to make a HIL-to-PS/2
} adapter so I can have a k/b and mouse at the console, or am I better off
} using a serial terminal?

Modular Industrial Computers Inc used to make a HIL to PS2 Converter
box.  I don't think they do anymore because they can't get the ICs
anymore (HP part number 1RD2-6001).   Nobody else makes them.  The HIL
keyboards and mice are probably still available as "replacement parts"
from HP.  TAMs (www.tamsinc.com) is another possible source, so is
Monterey Bay Communication.


} * These machines have no graphics output, how can I tell if they're alive?
} Serial cable to a terminal (9600-N-1)?

Yuk, no wonder you don't know how much RAM you have.


} * These machines have only the FDDI(?) optical network. I'm not sure how to
} connect these to my ethernet (if at all), or am I better off adding an ISA
} or EISA network card to the boxes?

All the ones I've seen had an AUI port.


} * Can I add an ISA or EISA network card to the boxes, and will it be
} recognised? Drivers?

I'd like to know the answer to this.  I have 715s with an EISA backplane
and then I could have two ethernet connections.  Can I use the 27245 (hp
driver) or 27247, 27252 (hp-plus driver) cards?  Or maybe the J2405
(lance driver) card?


   E Frank Ball                efball@efball.com




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On Tue, Apr 03, 2001 at 09:38:41AM +1000, van de Werken, Matthew (DEM, PH) wrote:
> * These machines have no graphics output, how can I tell if they're alive?
> Serial cable to a terminal (9600-N-1)?

And disable both HW & SW flow control.  we use null-modem cables to our
PCs and minicom here, mostly.

-- 
Revolutions do not require corporate support.




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[ mickey - I cc'd the list so the right people can correct
  my ignorane below ]

mickey wrote:
> did not find it in the maillists or the doc.
> although you say you are not much of a cpu guy, maybe you
> can bounce it to smb who is?
> the question is, how to definately distinguish pa7300lc
> from let's say 7100lc (which is similar to it), besides
> cache size, if possible.

I can take a whack at this: PDC MODEL and PDC CPU calls.
The PDC for the various boxes will know exactly which type of CPU
(down to chip rev level) and this info is availble throught PDC
calls. parisc-linux dumps this info at boot time.
E.g. linux/arch/parisc/kernel/setup.c:collect_boot_cpu_data()

My offhand knowledge ends on where exactly to find the data for
each CPU type. I think the PARISC 2.0 Arch has a table in an appendix
which describes the various models and which value they will have.
You can also browse the HW data base and extract the same info.
(See http://216.208.98.4/view.php3?type=machine&name=A180C)

Oh - and parisc-linux determines the type based on a table.
See arch/parisc/kernel/hardware.c:parisc_get_cpu_type()

> the reason is that 7300lc uses a different diag-sequences
> to operate block tlb and such.

AFAIK, those things are not portable across parisc implementations.
But if you want to play with such code, finding the CPU type is trivial
in comparison.

BTW, PDC calls are provided to manage the block tlb (call will fail if
the CPU doesn't have block TLB). Some "Hversion specific" PDC calls
are provided to perform diag insns (eg set default wide mode on PA2.0 CPUs).
Don't how many PDC calls use diag insn or which of those calls are
published (documentation).

If you could be more specific about what you want to do, I'm sure folks
on this list would advise/help determine the "best" way to do it.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Richard Hirst wrote:
> My 715/old, with a cvs head kernel, has no entries in /proc/ioports.
> If I change our IO_SPACE_LIMIT in io.h from 0x00ffffff to 0xfffffff,
> I get
> 
> apollo:~# cat /proc/ioports 
> f0800000-f08fffff : ASP
>   f0800000-f0800013 : reserved
>   f0800020-f0800020 : led_data
>   f0824800-f0824802 : parport0
>   f0826000-f0826010 : i82596
...
> Should all that ASP related stuff be doing a request_mem_region()
> so they show up in /proc/iomem rather than /proc/ioports?

Yes. I think so.
Ideally, /proc/ioports should be empty for systems without PCI or EISA.


> If so, does that have implications for EISA devices which will appear
> under ASP, where we might want to use exisiting drivers that do
> request_region()?

The plan was EISA devices under ASP should use request_region()
and inb/outb. I have no clue how EISA "bus walk" works or how EISA
drivers will find/claim their devices.

The EISA HBA needs to register it's "pci_ops".
See arch/parisc/kernel/pci.c:PCI_PORT_OUT macro.

> from io.h:
> 
> /* IO Port space is :      BBiiii   where BB is HBA number. */
> #define IO_SPACE_LIMIT 0x00ffffff

Yup - that's correct. It means the "offending" drivers above aren't
using inb/outb since "BB" value would index beyond the end
of the HBA array and crash the box.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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With the file system of ESIEE, I always have the problem, that 
my machine hangs, before init does any output !

I also have selfmade stuff, I will see, what will run on that
machine.

Thanks for your prompt answer.

With friendly regards
	Christoph Plattner


Richard Hirst wrote:
> 
> On Tue, Apr 03, 2001 at 12:51:32AM +0200, Christoph Plattner wrote:
> > What this in the new kernel ?
> > A manually inserted breakpoint ?
> 
> No, you need new user space stuff.  It looks like there will be a
> new base tarball Real Soon Now, so it might be easiest to wait a
> few days for that.  Alternatively you could try the file system
> at
> 
> http://mkhppa1.esiee.fr/en/download.html
> 
> which is pretty up to date - havn't tried that myself though.
> 
> Richard
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux


-----------------------------------------------------------------
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E Frank Ball said:
> } * These machines have only the FDDI(?) optical network. I'm not sure how to
> } connect these to my ethernet (if at all), or am I better off adding an ISA
> } or EISA network card to the boxes?
> 
> All the ones I've seen had an AUI port.

I thought so, too, but when I went hunting for one on the back of a
735/125 last night to stick a transceiver on it, I couldn't find it.
Either there isn't one or it was really well hidden.  =)

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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On Mon, Apr 02, 2001 at 09:06:10PM -0600, Grant Grundler wrote:
> The plan was EISA devices under ASP should use request_region()
> and inb/outb. I have no clue how EISA "bus walk" works or how EISA
> drivers will find/claim their devices.
> 
> The EISA HBA needs to register it's "pci_ops".
> See arch/parisc/kernel/pci.c:PCI_PORT_OUT macro.

Yep, that make sense.  Does mean sim700.c will have to make runtime
decisions whether to use raw_read (for the on-board 53c700) or inb
(for one on an EISA card), on my 715, but that is no big deal.
EISA allocates 0x1000 bytes per slot, with a four (?) byte signature
at offset 0xc80 (IIRC) to identify the cards.  At least, that is
how my old Compaq works, with first slot at 0x1000.  Seems to tie
up address-wise, at least:

10. Scorpio Sr. EISA BA (11) at 0xfc000000, versions 0x19, 0x0, 0x76, 0x0, 0x0
11. Unknown device (10) at 0xfc001000, versions 0x0, 0x0, 0xfff, 0x0, 0x0

Again, IIRC, last time I played with the EISA slot on my 715 I
found the EISA 53c700 couldn't access main memory, and EISA interrupts
were not routed to the CPU.  The driver could access the chip registers
though.  But that was all a long time ago, so things may be different
now.

Richard





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On Tue, Apr 03, 2001 at 08:55:15AM +0200, Christoph Plattner wrote:
> With the file system of ESIEE, I always have the problem, that 
> my machine hangs, before init does any output !

Have you tried using init=/bin/sash?  You may have to build your
own sash, from userspace/sash on pehc cvs.

Richard





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From: Christoph Plattner <christoph.plattner@alcatel.at>
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Subject: Re: [parisc-linux] New kernel on 720 + Pa-Linux-0.5: Breakpoint ?
Date: Tue, 03 Apr 2001 11:23:58 +0200
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Hello,

Richard Hirst wrote:
> 
> On Tue, Apr 03, 2001 at 08:55:15AM +0200, Christoph Plattner wrote:
> > With the file system of ESIEE, I always have the problem, that
> > my machine hangs, before init does any output !
> 
> Have you tried using init=/bin/sash?  You may have to build your
> own sash, from userspace/sash on pehc cvs.

No. I built up my own bash (it was statically linked by
accident). I never used sash.

Cheers
	Christoph P.

> 
> Richard
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955




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From: Markus Werle <markus@lufmech.rwth-aachen.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] cvs-gcc: howto build a 64-bit version?
Date: Tue, 03 Apr 2001 12:15:21 +0200
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I tried to build cvs-gcc from
:pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc
using binutils from the same cvs server. For the 32-bit no build
problems, but the 64-bit bootstrap
fails. Any help for creating a 64-bit version of g++ appreciated.

=============================
32 BIT:
==============================

I built binutils and 32-bit gcc/g++/g77:
../binutils/configure --prefix=/opt/FREE-SOFTWARE/puffin-gcc-20010403
--with-gnu-as
->make/install success

../gcc/configure --prefix=/opt/FREE-SOFTWARE/puffin-gcc-20010403
--with-gnu-as --without-gnu-ld --enable-languages=f77,c,c++
--enable-version-specific-runtime-libs
-> bootstrap/install success

linkage errors in the c++ part:

[markus@tresca]  src/ > g++ ../experimental/HelloWorld.C/usr/ccs/bin/ld:
Unsatisfied symbols:
   std::ios_base::Init::~Init()(code)
   std::ostream::operator<<(std::ostream& (*)(std::ostream&))(code)
   std::ios_base::Init::Init()(code)
   std::ostream::flush()(code)
   std::ostream::put(char)(code)
   std::basic_ostream<char, std::char_traits<char> >& std::operator<<
<std::char_traits<char> >(std::basic_ostream<char,
std::char_traits<char> >&, char const*)(code)
   std::cout (data)
collect2: ld returned 1 exit status

=============================
64 BIT:
==============================

   #  md build-binutils-64
   #  cd build-binutils-64/
   #  ../binutils/configure
--prefix=/opt/FREE-SOFTWARE/puffin-gcc-20010403-ELF
--host=hppa64-hp-hpux11.00 --with-gnu-as --with-gnu-ld && make -j4
   #  make install

    success

   #  cd ../build-gcc-64/
   #  ../gcc/configure --host=hppa64-hp-hpux11.00
--prefix=/opt/FREE-SOFTWARE/puffin-gcc-20010403-ELF --with-gnu-as
--with-gnu-ld --enable-languages=f77,c,c++
--enable-version-specific-runtime-libs && make -j4 bootstrap

    fails at a well-known place:

[...]
make[2]: Entering directory `/work/markus/HP-GCC/build-gcc-64/gcc'
(cd intl && make all)
make[3]: Entering directory `/work/markus/HP-GCC/build-gcc-64/gcc/intl'
make[3]: Nothing to be done for `all'.
make[3]: Leaving directory `/work/markus/HP-GCC/build-gcc-64/gcc/intl'
(cd po && make all)
make[3]: Entering directory `/work/markus/HP-GCC/build-gcc-64/gcc/po'
make[3]: Nothing to be done for `all'.
make[3]: Leaving directory `/work/markus/HP-GCC/build-gcc-64/gcc/po'
echo "int xxy_us_dummy;" >tmp-dum.c
./xgcc -B./
-B/opt/FREE-SOFTWARE/puffin-gcc-20010403-ELF/hppa64-hp-hpux11.00/bin/
-isystem
/opt/FREE-SOFTWARE/puffin-gcc-20010403-ELF/hppa64-hp-hpux11.00/include
-S tmp-dum.c
cc1: Internal compiler error in set_sizetype, at stor-layout.c:1673
Please submit a full bug report, with preprocessed source if
appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[2]: *** [s-under] Error 1
make[2]: Leaving directory `/work/markus/HP-GCC/build-gcc-64/gcc'
make[1]: *** [stage1_build] Error 2
make[1]: Leaving directory `/work/markus/HP-GCC/build-gcc-64/gcc'
make: *** [bootstrap] Error 2





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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] cvs-gcc: howto build a 64-bit version?
Date: Tue, 3 Apr 2001 22:22:42 +1000 (EST)
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To: Markus Werle <markus@lufmech.rwth-aachen.de>
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On Tue, 3 Apr 2001, Markus Werle wrote:

> problems, but the 64-bit bootstrap
> fails. Any help for creating a 64-bit version of g++ appreciated.

I see you're trying to build for HPUX.  You will probably be better off
tracking sourceware gcc, although I understand you've had some trouble
there too.  :-(  Since we don't have glibc for hppa64-linux, I really
only support --languages=c for the 64 bit compiler at the moment.

Alan
-- 
Linuxcare






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Subject: Re: [parisc-linux] cvs-gcc: howto build a 64-bit version?
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Alan Modra wrote:

> On Tue, 3 Apr 2001, Markus Werle wrote:
>
> > problems, but the 64-bit bootstrap
> > fails. Any help for creating a 64-bit version of g++ appreciated.
>
> I see you're trying to build for HPUX.  You will probably be better off
> tracking sourceware gcc, although I understand you've had some trouble
> there too.  :-(

Are You talking about thge redhat cvs tree?
Is that tree more up-to-date/applicable for hpux than puffin's?

> Since we don't have glibc for hppa64-linux, I really
> only support --languages=c for the 64 bit compiler at the moment.

the ICE error I reported is independent of  --enable-languages=c or more

  116  rm -rf *
  117  ../gcc/configure --host=hppa64-hp-hpux11.00
--prefix=/opt/FREE-SOFTWARE/puffin-gcc-20010403-ELF --with-gnu-as
--with-gnu-ld --enable-languages=c --enable-version-specific-runtime-libs
&& make -j4 bootstrap
  118  make bootstrap

ends with an ICE during bootstrap

[...]
echo "int xxy_us_dummy;" >tmp-dum.c
./xgcc -B./
-B/opt/FREE-SOFTWARE/puffin-gcc-20010403-ELF/hppa64-hp-hpux11.00/bin/
-isystem
/opt/FREE-SOFTWARE/puffin-gcc-20010403-ELF/hppa64-hp-hpux11.00/include -S
tmp-dum.c
cc1: Internal compiler error in set_sizetype, at stor-layout.c:1673





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Subject: Re: [parisc-linux] New kernel on 720 + Pa-Linux-0.5: Breakpoint ?
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On Tue, Apr 03, 2001 at 11:23:58AM +0200, Christoph Plattner wrote:
> Hello,
> 
> Richard Hirst wrote:
> > 
> > On Tue, Apr 03, 2001 at 08:55:15AM +0200, Christoph Plattner wrote:
> > > With the file system of ESIEE, I always have the problem, that
> > > my machine hangs, before init does any output !
> > 
> > Have you tried using init=/bin/sash?  You may have to build your
> > own sash, from userspace/sash on pehc cvs.
> 
> No. I built up my own bash (it was statically linked by
> accident). I never used sash.

You should try sash.  It will make less demands on your system, and
might show us something useful.

Richard





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From: Alan Modra <alan@linuxcare.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] cvs-gcc: howto build a 64-bit version?
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On Tue, 3 Apr 2001, Markus Werle wrote:

> Are You talking about thge redhat cvs tree?

Yes. The site used to be called sourceware.cygnus.com, and I'm not yet
used to the new name, sources.redhat.com

> Is that tree more up-to-date/applicable for hpux than puffin's?

Yes and no.  Yes, we have PA specific fixes in our tree that aren't yet in
sourceware (there I go again), but on the other hand we are lagging a
little behind the gcc-3.0 tree.

> cc1: Internal compiler error in set_sizetype, at stor-layout.c:1673

I don't see this error when either cross-compiling or natively
boot-strapping gcc under hppa-linux.  It's possible your bootstrap
compiler has bugs that are preventing a successful build.

Alan
-- 
Linuxcare





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Subject: Re: [parisc-linux] cvs-gcc: howto build a 64-bit version?
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Alan Modra wrote:

> > cc1: Internal compiler error in set_sizetype, at stor-layout.c:1673
>
> I don't see this error when either cross-compiling or natively
> boot-strapping gcc under hppa-linux.

I fear this type of bug.

>  It's possible your bootstrap compiler has bugs that are preventing a
> successful build.

I used the 32-bit version of cvs-gcc. So its gcc applied to itself.
It was recommended to use gcc for the 64-bit binutils
due to bugs in hp's cc (size of int). What else can I do?

building binutils with hp cc dies with:
cpp: "./bfd.h", line 141: error 4062: No 64 bit integer type available
cpp: "./bfd.h", line 141: error 4062: No 64 bit integer type available

Did You manage to bootstrap todays cvs 64-bit version
on a vanilla system?

another method:
I started with hp-cc/gcc-compiled binutils:

echo "int xxy_us_dummy;" >tmp-dum.c
./xgcc -B./
-B/opt/FREE-SOFTWARE/puffin-gcc-20010403-ELF/hppa64-hp-hpux11.00/bin/
-isystem
/opt/FREE-SOFTWARE/puffin-gcc-20010403-ELF/hppa64-hp-hpux11.00/include -S
tmp-dum.c
cc1: Internal compiler error in ?, at stor-layout.c:1673


Markus





From - Thu Nov 08 21:17:06 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] request_region()
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Cc: Grant Grundler <grundler@puffin.external.hp.com>,
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To: Richard Hirst <rhirst@linuxcare.com>
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On Tue, Apr 03, 2001 at 10:05:02AM +0100, Richard Hirst wrote:
> Yep, that make sense.  Does mean sim700.c will have to make runtime
> decisions whether to use raw_read (for the on-board 53c700) or inb
> (for one on an EISA card), on my 715, but that is no big deal.

i think sim700.c should be using ioremap / readX / writeX instead
of raw_read.  Is the EISA scsi really only accessible via port io?
I would have throught that it would be memory mapped, in which case
there's no need to have a macro to access it.

> EISA allocates 0x1000 bytes per slot, with a four (?) byte signature
> at offset 0xc80 (IIRC) to identify the cards.  At least, that is
> how my old Compaq works, with first slot at 0x1000.  Seems to tie
> up address-wise, at least:
> 
> 10. Scorpio Sr. EISA BA (11) at 0xfc000000, versions 0x19, 0x0, 0x76, 0x0, 0x0
> 11. Unknown device (10) at 0xfc001000, versions 0x0, 0x0, 0xfff, 0x0, 0x0

That seems to indicate memory mapped IO...

> Again, IIRC, last time I played with the EISA slot on my 715 I
> found the EISA 53c700 couldn't access main memory, and EISA interrupts
> were not routed to the CPU.  The driver could access the chip registers
> though.  But that was all a long time ago, so things may be different
> now.

How BugFree(TM) do we think the Wax driver is?

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] New kernel on 720 + Pa-Linux-0.5: Breakpoint ?
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Cc: Richard Hirst <rhirst@linuxcare.com>,
	Christoph Plattner <christoph.plattner@dot.at>,
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To: Christoph Plattner <christoph.plattner@alcatel.at>
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On Tue, Apr 03, 2001 at 08:55:15AM +0200, Christoph Plattner wrote:
> With the file system of ESIEE, I always have the problem, that 
> my machine hangs, before init does any output !
> 
> I also have selfmade stuff, I will see, what will run on that
> machine.

have you looked at all the followups to the esiee announcement noting
the problems with it?  i suspect it's switching to STI console.

-- 
Revolutions do not require corporate support.




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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: [parisc-linux] CVS Repository @ puffin - contents ?
Date: Wed, 04 Apr 2001 00:03:02 +0200
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Hello Puffin Group and PARISC hackers !

Is there a list of repository modules or trees ?

I know 
	binutils
	gcc
	linux
	palo
	glibc
	starce
	userspace/sash-3.4 and some others

Is there more to fetch ?
Can I have a list or find out with CVS ?
Like fileutils, util-linux, etc, etc ,etc.....

Cheers
	Christoph P.


-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] CVS Repository @ puffin - contents ?
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Christoph Plattner writes...

> Hello Puffin Group and PARISC hackers !
> 
> Is there a list of repository modules or trees ?

Use bonsai to browse the CVS repository,

http://puffin.external.hp.com/bonsai/rview.cgi

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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On Wed, Apr 04, 2001 at 12:03:02AM +0200, Christoph Plattner wrote:
> Is there a list of repository modules or trees ?

try http://puffin.external.hp.com/cvs/

if you haven't seen commits to some of those repositories on the
cvs lists for a while they're probably dead.  modutils is obsolete
(integrated upstream), binutils will be once 2.11 comes out.

-- 
Revolutions do not require corporate support.




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] request_region()
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Richard Hirst wrote:
> Yep, that make sense.  Does mean sim700.c will have to make runtime
> decisions whether to use raw_read (for the on-board 53c700) or inb
> (for one on an EISA card), on my 715, but that is no big deal.

Someone (willy or prumpf?) told me Linus (and/or perhaps others)
have rejected such "automagic" redirection of IO space access functions.
IIRC, the reason was complexity and extra CPU cycles.
But it seems any multibus driver ends up doing it on its own anyway.

I was thinking perhaps the sim700 driver could be compiled
*twice* to produce two binaries from the same source. One flavor
to access devices which use MMIO and the other flavor would claim
devices which only use IO port space. Thoughts?

> EISA allocates 0x1000 bytes per slot, with a four (?) byte signature
> at offset 0xc80 (IIRC) to identify the cards.  At least, that is
> how my old Compaq works, with first slot at 0x1000.  Seems to tie
> up address-wise, at least:
> 
> 10. Scorpio Sr. EISA BA (11) at 0xfc000000, versions 0x19, 0x0, 0x76, 0x0, 0x
>   0
> 11. Unknown device (10) at 0xfc001000, versions 0x0, 0x0, 0xfff, 0x0, 0x0

Interesting the SCSI device is reported at 0xfc... address.
If that's an IO port space address, it would be nice if the
EISA bus code could mask off the upper 16 bits so the drivers only
see "0x1000". (HBA # is 0 unless more than one EISA BA needs to be
supported).

> Again, IIRC, last time I played with the EISA slot on my 715 I
> found the EISA 53c700 couldn't access main memory, and EISA interrupts
> were not routed to the CPU.  The driver could access the chip registers
> though.  But that was all a long time ago, so things may be different
> now.

EISA 53c700 should be able to access main memory but I don't think
the interrupt routing stuff has been resolved yet. Poke Alex DeVries
some more.  :^)

later,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Ryan Bradetich <rbrad@beavis.ybsoft.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] PDC cleanup and encapsulation
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Anyone see a problem with committing this patch?

- Ryan

----- Forwarded message from Ryan Bradetich <rbrad@beavis.ybsoft.com> -----

Envelope-to: root@amanda.ybsoft.com
From: "Ryan Bradetich" <rbrad@beavis.ybsoft.com>
To: parisc-linux@lists.parisc-linux.org
Reply-To: rbradetich@uswest.net
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Subject: [parisc-linux] [PATCH] PDC cleanup and encapsulation
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Hello parisc-linux hackers,

This is a fairly extensive patch which (almost) finishes the PDC cleanups I
have been working on.  The goal of this patch was to add kernel-docs and
encapsulate the firmware calls so the caller does not have to worry about
alignment issues, etc.

The last PDC/firware cleanup I have on my list is to rename asm/pdc.h
to firmware.h.  This will be a seperate patch after this patch has been
reviewed/approved/committed.

I have tested this patch on the following machines:
	- 712/80 using STI console
	- C200 32-bit kernel using serial console
	- A500 64-bit kernel using serial console

Since the majority of the changes are in firmware.c and pdc.h
I have included include those files in their entirity to make
them easier to read.

As always, feedback, concerns, and questions are welcome.

Thanks,

- Ryan

[patch snipped]
Origional message can be found at:

http://lists.parisc-linux.org/pipermail/parisc-linux/2001-March/012108.html





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> Someone (willy or prumpf?) told me Linus (and/or perhaps others)
> have rejected such "automagic" redirection of IO space access functions.
> IIRC, the reason was complexity and extra CPU cycles.
> But it seems any multibus driver ends up doing it on its own anyway.

Some drivers do this andit works out fine. The real reason for suggesting
people generally avoid it is the cost of all the conditions and stuff.

If its done intelligently its not a problem because driver authors write

	if(dev->bus==GSC)
	{
		for(i=0;i<256;i++)
			*b++=raw_readl(foo+i);
	}
	else
	{
	}

not

	for(i=0;i<256;i++)
		*b++=magic_readl(foo+i);

The latter produces pretty hideous efficiency as you can imagine

> I was thinking perhaps the sim700 driver could be compiled
> *twice* to produce two binaries from the same source. One flavor
> to access devices which use MMIO and the other flavor would claim
> devices which only use IO port space. Thoughts?

In some cases that may be appropriate, eg if both devices are almost never
found in the same box.

One final comment. Every rule Linus makes you can get him to ignore if you have
a good case for it.

Alan





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Xref: news.gmane.org gmane.linux.ports.parisc:10675

Matthew Wilcox wrote:
> i think sim700.c should be using ioremap / readX / writeX instead
> of raw_read.  Is the EISA scsi really only accessible via port io?

Yes.

> I would have throught that it would be memory mapped, in which case
> there's no need to have a macro to access it.

IO Port space is memory mapped but not in a linear fashion (afaik).
My understanding is the IO port space is mapped 4 bytes per MMIO page.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: Re: [parisc-linux] Building packages, problems with printf
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Xref: news.gmane.org gmane.linux.ports.parisc:10676

On Mon, Mar 26, 2001 at 09:03:34AM +1000, Alan Modra wrote:
> On Sun, 25 Mar 2001, Matthew Wilcox wrote:
> 
> > Something we've been running into when building packages is the problem
> > that printf is defined as a macro when using gcc 2.97.  This should be
> > resolved by doing the following:
> > 
> > #include <stdio.h>
> > #undef printf
> 
> That's cheating!  The real fix is to turn
> 
> printf (foo_string,
> #if SOMETHING
> abc_param
> #else
> xyz_param
> #endif
> );
> 
> into
> 
> #if SOMETHING
> printf (foo_string, abc_param);
> #else
> printf (foo_string, xyz_param);
> #endif

Actually, another solution is:

(printf) (foo_string,
#if SOMETHING
abc_param
#else
xyz_param
#endif
);

The parentheses surrounding printf prevent macro expansion -- the C
standard explicitly states that it must. We discovered this in the
course of developing FormatGuard, a patch to glibc that turns printf
and the like into macros as a means of preventing format string attacks
(see http://www.immunix.org/formatguard.html for details).

-- 
Steve Beattie                               Don't trust programmers? 
<steve@wirex.net>                         Complete StackGuard distro at
http://immunix.org/~steve/                         immunix.org




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Subject: Re: [parisc-linux] CVS Repository @ puffin - contents ?
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On Tue, 3 Apr 2001, Matthew Wilcox wrote:

> if you haven't seen commits to some of those repositories on the
> cvs lists for a while they're probably dead.  modutils is obsolete
> (integrated upstream), binutils will be once 2.11 comes out.

That was true a few days ago.  binutils may yet need to be resurrected
because 2.11 will have the -Bsymbolic bug, I'm afraid.  The fix for the
-Bsymbolic bug involves a patch to bfd/elflink.h, which is used by all ELF
targets.  I don't particularly want to be responsible for accidentally
breaking the 2.11 release for all ELF targets...

Alan
-- 
Linuxcare





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Hello,

Matthew Wilcox wrote:
> 
> On Tue, Apr 03, 2001 at 08:55:15AM +0200, Christoph Plattner wrote:
> > With the file system of ESIEE, I always have the problem, that
> > my machine hangs, before init does any output !
> >
> > I also have selfmade stuff, I will see, what will run on that
> > machine.
> 
> have you looked at all the followups to the esiee announcement noting
> the problems with it?  i suspect it's switching to STI console.

Although I definitely write

	console=ttyS0

as kernel parameter ?

Cheers
	Christoph P.

> 
> --
> Revolutions do not require corporate support.

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955




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Subject: Re: [parisc-linux] CVS Repository @ puffin - contents ?
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Thank you to all, I can see ....

Cheers
	Christoph P.

Matthew Wilcox wrote:
> 
> On Wed, Apr 04, 2001 at 12:03:02AM +0200, Christoph Plattner wrote:
> > Is there a list of repository modules or trees ?
> 
> try http://puffin.external.hp.com/cvs/
> 
> if you haven't seen commits to some of those repositories on the
> cvs lists for a while they're probably dead.  modutils is obsolete
> (integrated upstream), binutils will be once 2.11 comes out.
> 
> --
> Revolutions do not require corporate support.
> 

Matt Taggart wrote:
> 
>Use bonsai to browse the CVS repository,
>
>http://puffin.external.hp.com/bonsai/rview.cgi

> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955




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From: Bjorn Helgaas <bjorn_helgaas@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] PDC cleanup and encapsulation
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--------------Boundary-00=_PR1A3TL1EFSHDQCUCEMZ
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Looks good to me.  A couple minor questions/comments, more for my 
edification than anything else:

- pdc.h contains a commented-out struct pdc_iodc.  The comment suggests 
possible issues with using it with 64-bit firmware, but I think the fear 
is unfounded.  There are several places that use pdc_iodc_read(), but they 
all seem to define their own equivalent of struct pdc_iodc.  I'm not sure 
why they don't use struct pdc_iodc.  Also, include/asm-parisc/hardware.h 
contains #defines for the IODC_TYPE field (HPHW_NPROC, etc); should these 
be defined alongside struct pdc_iodc?

- What are the guidelines for #ifdef __LP64__ vs CONFIG_PA20?  You 
replaced __LP64__ with CONFIG_PA20 in some places but not others and I'm 
not clear on the difference.

- In firmware.c, the "yes 'int', not 'long' -- IODC I/O is always 32-bit 
stuff" comment moved from pdc.h seems obsolete, or at least, I can't 
figure out what the 'int' refers to.  I'd remove the "This means Cxxx 
boxes can't run wide kernels right now." comment, since CONFIG_PDC_NARROW 
addresses that issue.

I attached a diff that fixes a few typos.

Bjorn

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--------------Boundary-00=_PR1A3TL1EFSHDQCUCEMZ--




From - Thu Nov 08 21:17:07 2018
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X-Mozilla-Keys:                                                                                 
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] New kernel on 720 + Pa-Linux-0.5: Breakpoint ?
Date: Wed, 4 Apr 2001 18:05:18 +0100
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Message-ID: <20010404180518.C11435@parcelfarce.linux.theplanet.co.uk>
References: <3AC90274.4687ED7C@dot.at> <20010403001743.G9198@linuxcare.com> <3AC973D3.F1453A4C@alcatel.at> <20010403223441.A11435@parcelfarce.linux.theplanet.co.uk> <3ACAC867.25327463@alcatel.at>
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Cc: Matthew Wilcox <matthew@wil.cx>,
	Richard Hirst <rhirst@linuxcare.com>,
	Christoph Plattner <christoph.plattner@dot.at>,
	parisc-linux@lists.parisc-linux.org
To: Christoph Plattner <christoph.plattner@alcatel.at>
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Wed Apr  4 11:05:36 2001
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On Wed, Apr 04, 2001 at 09:08:23AM +0200, Christoph Plattner wrote:
> > have you looked at all the followups to the esiee announcement noting
> > the problems with it?  i suspect it's switching to STI console.
> 
> Although I definitely write
> 
> 	console=ttyS0
> 
> as kernel parameter ?

yes.  they symlinked /dev/console to tty0 instead of leaving it as a
char device.  the kernel can't help you out here, you have to change
that symlink :-(

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:17:07 2018
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X-Mozilla-Keys:                                                                                 
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] PDC cleanup and encapsulation
Date: Wed, 4 Apr 2001 18:20:16 +0100
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Cc: rbradetich@uswest.net, Ryan Bradetich <rbrad@beavis.ybsoft.com>,
	parisc-linux@lists.parisc-linux.org
To: Bjorn Helgaas <bjorn_helgaas@hp.com>
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On Wed, Apr 04, 2001 at 09:57:25AM -0700, Bjorn Helgaas wrote:
> - What are the guidelines for #ifdef __LP64__ vs CONFIG_PA20?  You 
> replaced __LP64__ with CONFIG_PA20 in some places but not others and I'm 
> not clear on the difference.

Not all PA-2.0 processors are run in 64-bit mode.  For example, a C3000
can be run in either 32 or 64 bit mode.  At compile-time you can choose
to optimise for a particular processor (and risk it not working on
other machines).

> - In firmware.c, the "yes 'int', not 'long' -- IODC I/O is always 32-bit 
> stuff" comment moved from pdc.h seems obsolete, or at least, I can't 
> figure out what the 'int' refers to.  I'd remove the "This means Cxxx 
> boxes can't run wide kernels right now." comment, since CONFIG_PDC_NARROW 
> addresses that issue.

yup, some of the comments are definitely stale.

see linus' comments about disliking comments because of this issue :-)

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:17:07 2018
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X-Mozilla-Keys:                                                                                 
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Lightweight syscalls
Date: Wed, 4 Apr 2001 19:57:32 +0100
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I've just written a `lightweight syscall' which will be used to set cr27
to a per-thread value.  Comments, criticism, etc all welcome.

set_thread_pointer:
        gate    .+8, %r0                /* increase privilege */
        depi    3, 31, 2, %r31          /* Ensure we return into user mode. */
        be      0(%sr3,%r31)            /* return to user space */
        mtctl   %r26, %cr27             /* move arg0 to the control register */

note that the intended model is to place this at a fixed location on the
gateway page, and it will be called with BLE.  I haven't tested this yet,
in the best traditions of linux :-)

-- 
Revolutions do not require corporate support.




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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: Re: [parisc-linux] New kernel on 720 + Pa-Linux-0.5: Breakpoint ?
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To: Matthew Wilcox <matthew@wil.cx>
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Matthew Wilcox wrote:
> 
> On Wed, Apr 04, 2001 at 09:08:23AM +0200, Christoph Plattner wrote:
> > > have you looked at all the followups to the esiee announcement noting
> > > the problems with it?  i suspect it's switching to STI console.
> >
> > Although I definitely write
> >
> >       console=ttyS0
> >
> > as kernel parameter ?
> 
> yes.  they symlinked /dev/console to tty0 instead of leaving it as a
> char device.  the kernel can't help you out here, you have to change
> that symlink :-(
> 
> --
> Revolutions do not require corporate support.

No, No !

This problem have I fixed in my tree !
I tried it with both, the correct one
	/dev/console = 5,1
and the hack !
	/dev/console -> /dev/ttyS0

Further I hacked in a test in the kernel. Before it starts `init' or
any other process, it tries to open the console (You know, the warning,
if this fail). After the open I write out a string using `write (1, )'
as check the return value. I see the string on the serial console !!
and return value is ok.

So the device `/dev/console' IS WORKING in my setup, but the rest is 
not !!!....

Cheers
	Christoph P.

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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> 
> I'm not using PA-RISC Linux, yet, but I hope to be soon.  I'm 
> been using
> ix86 linux for a few years, and HP-UX for 15 years.  I deal with 700
> series hardware everyday at work, mostly 715s, 725s, and 745s.
> 
> } I have recently "acquired" a couple of old 735/xxx's, and I 
> wish to run
> } Linux on these.
> } 
> } * These boxes seem to have no indication whether they are 
> 735/125 or 735/99
> } - how do I find out which they are?
> 
> If they aren't labeled as "735/125" or "735/99" they should be 100MHz.

Yes, I believe they are 735/99s. They're not the fastest machines around,
but as far as price/performance goes, you can't beat a slow free computer...

> 
> 
> } * I don't know how much memory they have, how do I find 
> this out? They have
> } maybe half of the memory expansion slots filled.
> 
> The boot screen should print the memory amount almost first 
> thing.  The
> 735s use different ram than all the other 700s, so I don't 
> know the part
> numbers.  If you tell me I might be able to check 
> (A2575-60001 is a 32MB
> card for the other 700s, look for that kind of a number).
> Do the RAM cards have ICs loaded on boths sides or only 1?  
> How many ICs
> on each side?

Yep, I've booted them up (serial port set to 9600-N-1, no handshaking as
suggested by someone else) - one has 112MB, the other has 272MB. They both
have HP-UX 10.10 installed, but I don't have any password for the machines.
I don't have network capability, either, yet (see below), but I'm hoping I
can install Linux on one of the drives as a disk image via other means (I
may be able to get access to a SCSI-enabled PC here at work).

Another possibility is to use the narrow-SCSI port on the Apollo to connect
a SCSI CD-ROM. Would it be possible to boot from here? This would certainly
be easier for me.

> 
> } * I have no HIL keyboard or mouse, is there a way to make a 
> HIL-to-PS/2
> } adapter so I can have a k/b and mouse at the console, or am 
> I better off
> } using a serial terminal?
> 
> Modular Industrial Computers Inc used to make a HIL to PS2 Converter
> box.  I don't think they do anymore because they can't get the ICs
> anymore (HP part number 1RD2-6001).   Nobody else makes them.  The HIL
> keyboards and mice are probably still available as "replacement parts"
> from HP.  TAMs (www.tamsinc.com) is another possible source, so is
> Monterey Bay Communication.

I looked at the MIC web site - they sell these PS/2-HIL adapters for $410!
That's a bit too much, especially when converted to Aussie dollars (around
$850). I actually don't think I'll need a local keyboard anyway, since the
735 boxes I have don't have graphics adapters. The serial port method works
well for me, since I have a couple of extra serial ports in my NT box.

> 
> 
> } * These machines have no graphics output, how can I tell if 
> they're alive?
> } Serial cable to a terminal (9600-N-1)?
> 
> Yuk, no wonder you don't know how much RAM you have.
> 
> 
> } * These machines have only the FDDI(?) optical network. I'm 
> not sure how to
> } connect these to my ethernet (if at all), or am I better 
> off adding an ISA
> } or EISA network card to the boxes?
> 
> All the ones I've seen had an AUI port.

These ones don't, unfortunately. Does anyone know if you can use the EISA
slot to add a network card? I'd really really really like to be able to do
this; maybe a driver would have to be written. I've never written a driver
before, but I'm a competant programmer (and engineer by profession) so I
don't think it would be too much out of my league to give it a go.

I have an ISA card with SMC 83C790 chipset, which apparently has an
open-source Linux-x86 driver. I'd be hoping to use this code as a starting
point (I'd be even more hoping that the "porting" would merely involve a
recompile, and the EISA bus driver would take care of the hardware
differences at that level...) Anyone with any experience here?

> 
> 
> } * Can I add an ISA or EISA network card to the boxes, and will it be
> } recognised? Drivers?
> 
> I'd like to know the answer to this.  I have 715s with an 
> EISA backplane
> and then I could have two ethernet connections.  Can I use 
> the 27245 (hp
> driver) or 27247, 27252 (hp-plus driver) cards?  Or maybe the J2405
> (lance driver) card?
> 

Cheers,
MvdW




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From: Bjorn Helgaas <bjorn_helgaas@hp.com>
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Subject: Re: [parisc-linux] [PATCH] PDC cleanup and encapsulation
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On Wednesday 04 April 2001 11:20, Matthew Wilcox wrote:
> On Wed, Apr 04, 2001 at 09:57:25AM -0700, Bjorn Helgaas wrote:
> > - What are the guidelines for #ifdef __LP64__ vs CONFIG_PA20?  You
> > replaced __LP64__ with CONFIG_PA20 in some places but not others and
> > I'm not clear on the difference.
>
> Not all PA-2.0 processors are run in 64-bit mode.  For example, a C3000
> can be run in either 32 or 64 bit mode.  At compile-time you can choose
> to optimise for a particular processor (and risk it not working on
> other machines).

Ok, so let me see if I have this right:

CONFIG_PA20 =>
	PA2.0 architecture, in either narrow or wide mode.
	Defined iff CONFIG_PA8X00 selected, not directly user-configurable.

CONFIG_PARISC64 =>
	Only possible when CONFIG_PA20 selected
	Build 64-bit kernel by using $(CROSS_COMPILE) = hppa64-linux.
	cpp predefines __LP64__.

So is there a reason for testing __LP64__ rather than CONFIG_PARISC64 in 
the code?  There are a zillion tests for the former and none for the 
latter, even though the latter seems more direct and obvious.

It seems to me that __LP64__ is overloaded for several things.  
Fundamentally, it is a property of the kernel, i.e., it is compiled to run 
in wide mode.  But we also use it to decide whether to use PDC PAT, which 
seems like a slightly different question.  If you run a narrow kernel on a 
C3000, the firmware still supports PDC PAT (although I suppose we would 
have to do some work to call it in wide mode).




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] New hppa base tarball
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Hi hppa-unknown-linux-gnu hackers,

I have built a new "base" Debian tarball for hppa and posted it at,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/
basetars/base-20010404.tar.gz

It's ~30MB in size and only includes the base stuff(no compilers, etc), plus 
ssh and it's dependencies (libssl0.9.6, libcap1, zlib1g). The contents are 
listed at,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/
basetars/baselist.20010404

The debs included are available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/base/

The logins/passwds are,

demo:demo
root:root

There are additional instructions on how to set it up in the tarball at 
/home/demo/README. Instructions on using it to install a system are available 
at,

http://parisc-linux.org/software/install.html

Now that Bdale has the autobuilder running you can grab debs from any mirror. 
If something isn't there yet you can wait for it to show up, build it 
yourself, or check,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/debs/

to see if someone else has built it by hand.

I will also try and do a base + reasonable build environment tarball soon.

Please pay attention to the web site and mailing list for errata and report 
any problems you have.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Alan Modra <alan@linuxcare.com.au>
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Subject: [parisc-linux] Re: 64 bit kernel and module dp values again
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On Wed, 4 Apr 2001, Richard Hirst wrote:

> On Wed, Apr 04, 2001 at 04:32:40PM +0100, Richard Hirst wrote:
> > Hi Alan,
> >   Code from drivers/block/loop.o, built as a 64 bit module, using
> > xc-20010307.tgz
> > 
> > The stub to call $$divU is called with the kernels dp value as that is
> > what dp is left with follwing the __muldi3 call.

Sorry Richard, I should have picked up on this when I saw you exporting
millicode from the kernel yesterday.  You basically can't do it, and for
the same reason you can't export millicode from shared libs.  As you've
found, dp gets trashed...

> Having pondered on this while walking the dog (in the dry!!),
> I think I need a new stub for calling millicode that doesn't
> use dp.
> 
> 	ldil L'sym,%r1
> 	ldo  R'sym(%r1),%r1
> 	bve (r1)
> 	nop
> 
> where sym is the address of the millicode fn in the kernel.
> 
> Sound reasonable to you?

Yes.  That's the sort of thing ld would have to do too if we want to
export millicode from shared libs.

Incidentally, this problem isn't limited to 64 bit.  32 bit modules will
have the same problem, with r19 being trashed when calling kernel
millicode.

Alan "modules are evil" Modra
-- 
Linuxcare





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To: Bjorn Helgaas <bjorn_helgaas@hp.com>
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On Wed, Apr 04, 2001 at 04:04:22PM -0700, Bjorn Helgaas wrote:
> CONFIG_PA20 =>
> 	PA2.0 architecture, in either narrow or wide mode.
> 	Defined iff CONFIG_PA8X00 selected, not directly user-configurable.

Correct.  I test this rather than CONFIG_PA8X00 because it's conceivable
we might want to split PA8000/8200 support from 8500/8600.  Or something.

> CONFIG_PARISC64 =>
> 	Only possible when CONFIG_PA20 selected
> 	Build 64-bit kernel by using $(CROSS_COMPILE) = hppa64-linux.
> 	cpp predefines __LP64__.

Right.

> So is there a reason for testing __LP64__ rather than CONFIG_PARISC64 in 
> the code?  There are a zillion tests for the former and none for the 
> latter, even though the latter seems more direct and obvious.

Well.. it requires that you remember to include <linux/config.h>.

> It seems to me that __LP64__ is overloaded for several things.  
> Fundamentally, it is a property of the kernel, i.e., it is compiled to run 
> in wide mode.  But we also use it to decide whether to use PDC PAT, which 
> seems like a slightly different question.  If you run a narrow kernel on a 
> C3000, the firmware still supports PDC PAT (although I suppose we would 
> have to do some work to call it in wide mode).

Not quite true, C3k has 64-bit PDC, but it is not PAT.

-- 
Revolutions do not require corporate support.




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On Wed, Apr 04, 2001 at 09:57:25AM -0700, Bjorn Helgaas wrote:
> Looks good to me.  A couple minor questions/comments, more for my 
> edification than anything else:
> 
> - pdc.h contains a commented-out struct pdc_iodc.  The comment suggests 
> possible issues with using it with 64-bit firmware, but I think the fear 
> is unfounded.  There are several places that use pdc_iodc_read(), but they 
> all seem to define their own equivalent of struct pdc_iodc.  I'm not sure 
> why they don't use struct pdc_iodc.  Also, include/asm-parisc/hardware.h 
> contains #defines for the IODC_TYPE field (HPHW_NPROC, etc); should these 
> be defined alongside struct pdc_iodc?

>From reading the on-line docs and looking at how it pdc_iodc_read was 
used, I decided to let the user allocate the buffer instead of using
the predefinded struct.  The on-line docs indicated to me that only
the first 16 bytes are standard, after that the call was HVERSION dependent.
Since I could not determine what to use in all cases, I left it upto 
the user.  If it makes more sense to use a predefined struct for
better typecasting, etc ... I would be agreeable, I just didn't want to
break anything. :)

> - What are the guidelines for #ifdef __LP64__ vs CONFIG_PA20?  You 
> replaced __LP64__ with CONFIG_PA20 in some places but not others and I'm 
> not clear on the difference.

The one instance I changed this was for the block TLB pdc calls. These
calls are not defined in the 2.0 arch so I changed the define to make
the more obvious.  [Note: it also helped solve some compiling issues.]

> - In firmware.c, the "yes 'int', not 'long' -- IODC I/O is always 32-bit 
> stuff" comment moved from pdc.h seems obsolete, or at least, I can't 
> figure out what the 'int' refers to.  I'd remove the "This means Cxxx 
> boxes can't run wide kernels right now." comment, since CONFIG_PDC_NARROW 
> addresses that issue.

This is true.... actually the Cxxx boxes won't run the 64-bit kernel now,
but it isn't a firmware issue, it is a driver issue.  I'm working on this
and hopefully will have it solved soon.  But, your point is well taken,
I should have removed the comment.  Nice catch :)

> I attached a diff that fixes a few typos.

Thanks and much appreciated!

- Ryan

> Bjorn




From - Thu Nov 08 21:17:08 2018
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Otay, I d/l'd the baseplus tarball.
To install this, it says to read the instrutions that says to boot w/ a
cd.
I was hoping that these were iso files to make such a cd.
Am I on the wrong track ?


--
 Ed June

 buggz@america.net
 Linux: An open choice for free people worldwide.





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Subject: [parisc-linux] RE: The new FS of ESIEE Team is ready
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Cc: 'Giacomo Mulas' <gmulas@ca.astro.it>,
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To: =?iso-8859-1?Q?SOETE_Jo=EBl?= <JSO@EUROPAY.COM>,
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Xref: news.gmane.org gmane.linux.ports.parisc:10692

Hi Thomas,

I just download the last release of linux palo (date of today) as well as
the last release of the cross-compiler.

I try to build a new kernel with the config file standing on your archive.

But if the resulting kernel is well bootable, it does not allow to work with
the sti console.
(against the kernel you put on your archive which works perfectly with the
sti console)

(Be sure that there's no other difference between two test: I just choose
another kernel with iplboot.)

What is magical option (in .config or elsewhere)?

Thanks in advance for your help.
	Joel

> -----Original Message-----
> From: SOETE Jo=EBl=20
> Sent: Wednesday, March 21, 2001 3:19 PM
> To: 'Thomas Marteau'; parisc-linux@lists.parisc-linux.org
> Cc: Giacomo Mulas; SOETE Jo=EBl; William Carlsson
> Subject: RE: The new FS of ESIEE Team is ready
>=20
>=20
> Hello Thomas,
>=20
> I just finished to install and reboot with your=20
> fs_hd_20010320 on my B180.
>=20
> And I am very happy to see my favorite penguin appearing for=20
> the first time on the STI console works. Nice, great, marvelous, ...=20
>=20
> Also I would like to ask you additional favors: it would be=20
> nice to put on your download site the .config file with the=20
> corresponding cvs date of the kernel (the release of your=20
> cross-compiler could also be helpful for me) so that I can=20
> have a good base for future rebuild or test.
>=20
> Thanks again for your fs and thanks in advance for additional help,
> 	Joel
>=20
> > -----Original Message-----
> > From: Thomas Marteau [mailto:marteaut@esiee.fr]
> > Sent: Tuesday, March 20, 2001 8:08 PM
> > To: parisc-linux@lists.parisc-linux.org
> > Cc: Giacomo Mulas; SOETE Joel; William Carlsson
> > Subject: The new FS of ESIEE Team is ready
> >=20
> >=20
> > Hi all,
> >=20
> > 	The new FS is ready (~61MB). No "more" bugged with the=20
> > good TERM parameter and
> > no password :)
> > It is a specially designed for 712 owners but it is a sane=20
> > fs, we hope.
> >=20
> > Please, go to our DL page: http://mkhppa1.esiee.fr/en/download.html
> >=20
> > Good luck, Thomas
> > ESIEE Team
> >=20
>=20


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From: "Paul J.Y. Lahaie" <pjlahaie@linuxcare.com>
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Subject: [parisc-linux] Woody installer for PARISC
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Hello everyone,

Here are the changes I've made to the boot-floppies package to support
the PARISC architecture.

Makefile:
Added an entry for hppa support, make root.tar.gz

common.sh:
Small fixes to the functions that came up during debugging

rescue.sh:
- Define the hppa "floppy" type (ext2)
- Use the "write_m68kinfo" for install.sh generation
- Compress the kernel like powerpc/pmac arch

rootdisk.sh:
- Define the C library information for hppa
- Don't do library reduction (this was failing with our binutils)

utilities/dbootstrap/Makefile:
- Change the -DKVER="${KVER}" to -DKVER="${kver}" to reflect the proper
  variable name.

utilities/dbootstrap/bootconfig.c:
- Support for PALO (our bootloader)

utilities/dbootstrap/extract_base.c:
- Change debootstrap cmd line to use file:%s instead of just %s.

utilities/dbootstrap/main_menu.c:
- Remove options that aren't applicable to PARISC.
  (Make boot floppy, PCMCIA, etc..)

utilities/dbootstrap/partition_config.c:
- Add PALO message for partition creation.


There are a few more changes I needed to make to get a working installer
for PARISC, unfortunately some of them are because of limitations in
the current PARISC distribution (kernel.sh was modified to not require
a kernel .deb since we currently don't have one and the constantly
changing kernel makes it unwieldy to build kernel .debs).  As well the
root.bin needs to be larger than 3700K on parisc though I am working
on reducing this number to hopefully fit in that limit.

I will post a diff to boot-floppies shortly.

						- Paul


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buggz writes...

> 
> Otay, I d/l'd the baseplus tarball.

I haven't mentioned the baseplus tarball on the list yet but it's just as 
usable as the base one. The difference is that baseplus has been updated from 
the debian archive and also contains a reasonable development environment. I 
plan to roll it again soon and announce it on the list.

> To install this, it says to read the instrutions that says to boot w/ a
> cd.

The instructions also work if you boot from an nfsroot. Instructions on doing 
that at,

http://puffin.external.hp.com/mailing-lists/parisc-linux/2000/02-Feb/0069.html

> I was hoping that these were iso files to make such a cd.

Not yet, but soon hopefully.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Dear sirs!
Our office in 1996 buy HP9000(D-class) with hot-swap hdd, but now we =
have some problem with software for this system.
I try to install PA-RISK Linux from bootable CDROM (I get iso-image via =
your FTP-site).
But after some minutes, I see next mesagge - Kernel Faults - code 15, =
regs - c9fe8840 (addr =3D f6632087),
and system stopped.=20
  Could not you suggest, where I can find iso-image bootable CDROM with =
PA-RISK Linux for HP9000 (d-class)?
Best regards,
Gorbunov Dmitry,
National Patent Office
Republic of Kazakhstan
kazpat@nursat.kz(official e-mail)=20
=20

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<META content=3Dtext/html;charset=3Dkoi8-r =
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HTML//EN">
<META content=3D'"MSHTML 4.72.3110.7"' name=3DGENERATOR>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT color=3D#000000 face=3D"Arial Cyr" size=3D2>Dear =
sirs!</FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Arial Cyr" size=3D2>Our office in =
1996 buy=20
HP9000(D-class) with hot-swap hdd, but now we have some problem with =
software=20
for this system.</FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Arial Cyr" size=3D2>I try to install =
<FONT face=3D""=20
size=3D2>PA-RISK Linux from bootable CDROM (I get iso-image via your=20
FTP-site).</FONT></FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Arial Cyr" size=3D2><FONT face=3D"" =
size=3D2>But after=20
some minutes, I see next mesagge - <STRONG>Kernel Faults - code 15, regs =
-=20
c9fe8840 (addr =3D f6632087),</STRONG></FONT></FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Arial Cyr" size=3D2><FONT face=3D""=20
size=3D2></FONT></FONT><FONT face=3D"Arial Cyr" size=3D2>and system =
stopped.=20
</FONT></DIV>
<DIV><FONT face=3D"Arial Cyr" size=3D2>&nbsp; <FONT color=3D#000000 =
face=3DArial=20
size=3D2>Could not you suggest</FONT>, w<FONT color=3D#000000 =
face=3DArial size=3D2>here=20
I can find </FONT>iso-image bootable CDROM with<FONT size=3D2> PA-RISK =
Linux=20
for</FONT> HP9000 (d-class)?</FONT></DIV>
<DIV><FONT face=3D"Arial Cyr" size=3D2>Best regards,</FONT></DIV>
<DIV><FONT face=3D"Arial Cyr" size=3D2>Gorbunov Dmitry,</FONT></DIV>
<DIV><FONT face=3D"Arial Cyr" size=3D2></FONT><FONT color=3D#000000 =
face=3D"Arial Cyr"=20
size=3D2><FONT face=3D"" size=3D2>National Patent =
Office</FONT></FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Arial Cyr" size=3D2><FONT face=3D"" =
size=3D2>Republic=20
of Kazakhstan</FONT></FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Arial Cyr" size=3D2><FONT face=3D""=20
size=3D2>kazpat@nursat.kz(official e-mail)&nbsp;</FONT></FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Arial Cyr" size=3D2><FONT face=3D""=20
size=3D2>&nbsp;</FONT></FONT></DIV></BODY></HTML>

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From: =?iso-8859-1?Q?SOETE_Jo=EBl?= <JSO@EUROPAY.COM>
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Subject: RE: [parisc-linux] RE: The new FS of ESIEE Team is ready
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Cc: 'Thomas Marteau' <marteaut@esiee.fr>,
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Hi Ryan,

Thanks a lot but sorry I am sure it need more because it does not work with
STI on my B180 (anyway it is
 operational as I can log on serial console). (And with exactly the same fs
[the 
http://puffin.external.hp.com/pub/parisc/binaries/debian/basetars/baseplus-2
0010404.tar.gz] with the kernel
http://mkhppa1.esiee.fr/archive/vmlinux.gz (dated 08-Mar-2001) it works
fine???)

Here is the config file I used for my last test:

#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# Processor type
#
CONFIG_PA7100=y
CONFIG_PA11=y

#
# General options
#
CONFIG_GSC=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_WAX_EISA=y
CONFIG_SUPERIO=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_PCI_NAMES=y
CONFIG_CHASSIS_LCD_LED=y

#
# General setup
#
CONFIG_HOTPLUG=y
CONFIG_NET=y
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y

#
# Parallel port support
#
CONFIG_PARPORT=y

#
# Block devices
#
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y

#
# Multi-device support (RAID and LVM)
#
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_MD_RAID5=y

#
# Networking options
#
CONFIG_INET=y
CONFIG_IP_PNP=y

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_SG=y

#
# SCSI low-level drivers
#
CONFIG_SCSI_LASI=y
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20

#
# PCMCIA SCSI adapter support
#
# CONFIG_SCSI_PCMCIA is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_NET_SB1000 is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=y
CONFIG_NET_PCI=y
CONFIG_TULIP=y

#
# Ethernet (1000 Mbit)
#

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# PCMCIA network device support
#
# CONFIG_NET_PCMCIA is not set

#
# Input core support
#
# CONFIG_INPUT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
# CONFIG_HIL is not set
CONFIG_SERIAL=y
# CONFIG_SERIAL_CONSOLE is not set
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
# CONFIG_PRINTER is not set
# CONFIG_PPDEV is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_JOYSTICK is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set
CONFIG_PCMCIA_SERIAL=y

#
# PCMCIA character device support
#
# CONFIG_PCMCIA_SERIAL_CS is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
...
# CONFIG_JFFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=y
...
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
...
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
...

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
CONFIG_NFS_FS=y
# CONFIG_NFS_V3 is not set
CONFIG_ROOT_NFS=y
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
...

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
# CONFIG_NLS is not set

#
# Console drivers
#

#
# Frame-buffer support
#
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FB_RIVA is not set
# CONFIG_FB_CLGEN is not set
# CONFIG_FB_PM2 is not set
CONFIG_FB_CYBER2000=y
CONFIG_FB_STI=y
...
CONFIG_FBCON_CFB2=y
CONFIG_FBCON_CFB4=y
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB16=y
CONFIG_FBCON_CFB24=y
CONFIG_FBCON_STI=y
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set
# CONFIG_FBCON_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y

#
# Sound
#
# CONFIG_SOUND is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y


Is it helpfull.

Thanks anyway for advise,
	Joel

> -----Original Message-----
> From: Ryan Bradetich [mailto:rbrad@beavis.ybsoft.com]
> Sent: Friday, April 06, 2001 4:09 AM
> To: SOETE Jo?l
> Subject: Re: [parisc-linux] RE: The new FS of ESIEE Team is ready
> 
> 
> The magic you are looking for is:
> 
> CONFIG_SERIAL_CONSOLE=n
> CONFIG_STI_CONSOLE=y
> 
> I believe this should work with both enabled, but currently it 
> doesn't :(
> 
> 
> - Ryan
> 
> On Thu, Apr 05, 2001 at 07:53:07PM +0200, SOETE Jo?l wrote:
> > Hi Thomas,
> > 
> > I just download the last release of linux palo (date of 
> today) as well as
> > the last release of the cross-compiler.
> > 
> > I try to build a new kernel with the config file standing 
> on your archive.
> > 
> > But if the resulting kernel is well bootable, it does not 
> allow to work with
> > the sti console.
> > (against the kernel you put on your archive which works 
> perfectly with the
> > sti console)
> > 
> > (Be sure that there's no other difference between two test: 
> I just choose
> > another kernel with iplboot.)
> > 
> > What is magical option (in .config or elsewhere)?
> > 
> > Thanks in advance for your help.
> > 	Joel
> > 
> > > -----Original Message-----
> > > From: SOETE Jo?l 
> > > Sent: Wednesday, March 21, 2001 3:19 PM
> > > To: 'Thomas Marteau'; parisc-linux@lists.parisc-linux.org
> > > Cc: Giacomo Mulas; SOETE Jo?l; William Carlsson
> > > Subject: RE: The new FS of ESIEE Team is ready
> > > 
> > > 
> > > Hello Thomas,
> > > 
> > > I just finished to install and reboot with your 
> > > fs_hd_20010320 on my B180.
> > > 
> > > And I am very happy to see my favorite penguin appearing for 
> > > the first time on the STI console works. Nice, great, 
> marvelous, ... 
> > > 
> > > Also I would like to ask you additional favors: it would be 
> > > nice to put on your download site the .config file with the 
> > > corresponding cvs date of the kernel (the release of your 
> > > cross-compiler could also be helpful for me) so that I can 
> > > have a good base for future rebuild or test.
> > > 
> > > Thanks again for your fs and thanks in advance for 
> additional help,
> > > 	Joel
> > > 
> > > > -----Original Message-----
> > > > From: Thomas Marteau [mailto:marteaut@esiee.fr]
> > > > Sent: Tuesday, March 20, 2001 8:08 PM
> > > > To: parisc-linux@lists.parisc-linux.org
> > > > Cc: Giacomo Mulas; SOETE Joel; William Carlsson
> > > > Subject: The new FS of ESIEE Team is ready
> > > > 
> > > > 
> > > > Hi all,
> > > > 
> > > > 	The new FS is ready (~61MB). No "more" bugged with the 
> > > > good TERM parameter and
> > > > no password :)
> > > > It is a specially designed for 712 owners but it is a sane 
> > > > fs, we hope.
> > > > 
> > > > Please, go to our DL page: 
> http://mkhppa1.esiee.fr/en/download.html
> > > > 
> > > > Good luck, Thomas
> > > > ESIEE Team
> > > > 
> > > 
> > 
> > 
> > 
> **********************************************************************
> > This e-mail and any attachments to it may contain 
> confidential information which is strictly intended for the 
> use of the authorised recipient.  If you have received this 
> e-mail in error, please delete it and notify the sender by 
> replying to this e-mail.
> > Thank you for your co-operation.
> > 
> **********************************************************************
> > 
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> > 
> 


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From - Thu Nov 08 21:17:08 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] modutils fixes
Date: Fri, 6 Apr 2001 12:15:12 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:10697

Hi, this is a diff against modutils 2.4.5 to fix two problems:

1.  On 32 bit kernels modutils used data_start to find the kernels
dp value, but it should have really used $global$.  Didn't used to
matter as they were the same, but not anymore.

2.  On 64 bit kernels modutils uses a different stub to call millicode
functions, which used to assume dp held the modules local value.
That wasn't a valid assumption, so I've reworked the stub such that
it doesn't use dp.

I won't rush to send this upstream as the maintainer is on holiday.

Kernel changes have been made recently relating to module support
(export $global$, set up dp for kernel threads in a module), so
make sure you are up to date there if you want to use modules.

There are also a bunch more symbols needed in parisc_ksyms.c, depending
on what you want to modularise, but I'm holding off on commiting
those as Paul has similar local changes and I don't want to make
life more complicated for him.

Richard


diff -ur -x *.o modutils-2.4.5-clean/ChangeLog modutils-2.4.5/ChangeLog
--- modutils-2.4.5-clean/ChangeLog	Wed Mar 28 11:49:06 2001
+++ modutils-2.4.5/ChangeLog	Fri Apr  6 11:30:00 2001
@@ -1,3 +1,6 @@
+	* hppa dp is $global$, not data_start.  Richard Hirst.
+	* hppa64 stub for millicode calls must not use dp.  Richard Hirst.
+
 2001-03-29  Keith Owens  <kaos@ocs.com.au>
 
 	modutils 2.4.5
diff -ur -x *.o modutils-2.4.5-clean/obj/obj_hppa.c modutils-2.4.5/obj/obj_hppa.c
--- modutils-2.4.5-clean/obj/obj_hppa.c	Wed Mar 28 11:49:06 2001
+++ modutils-2.4.5/obj/obj_hppa.c	Wed Apr  4 14:04:48 2001
@@ -383,7 +383,7 @@
    This is significantly less complex than what we do for shared
    libraries because, obviously, modules are not shared.  Also we have
    no issues related to symbol visibility, lazy linking, etc.
-   The kernels dp is fixed (at symbol data_start), and we can fix up any
+   The kernels dp is fixed (at symbol $global$), and we can fix up any
    DPREL refs in the module to use that same dp value.
    All PCREL17F refs result in a stub with the following format:
 
@@ -658,13 +658,13 @@
   int i;
   hppa_file_t *hfile = (hppa_file_t *)f;
 
-  /* Initialise dp to the kernels dp (symbol data_start)
+  /* Initialise dp to the kernels dp (symbol $global$)
    */
   for (i = 0, s = ksyms; i < nksyms; i++, s++)
-    if (!strcmp((char *)s->name, "data_start"))
+    if (!strcmp((char *)s->name, "$global$"))
       break;
   if (i >= nksyms) {
-    error("Cannot initialise dp, 'data_start' not found\n");
+    error("Cannot initialise dp, '$global$' not found\n");
     return 1;
   }
   hfile->dp = s->value;
diff -ur -x *.o modutils-2.4.5-clean/obj/obj_hppa64.c modutils-2.4.5/obj/obj_hppa64.c
--- modutils-2.4.5-clean/obj/obj_hppa64.c	Wed Mar 28 11:49:06 2001
+++ modutils-2.4.5/obj/obj_hppa64.c	Fri Apr  6 11:31:16 2001
@@ -94,15 +94,15 @@
  *     e8 20 d0 00     bve (r1)
  *     53 7b 00 30     ldd 18(dp),dp
  *
- * We need a different stub for millicode calls, which doesn't screw
- * dp:
+ * We need a different stub for millicode calls, which doesn't depend on
+ * or modify dp:
  *
- *     53 61 00 00     ldd 0(dp),r1
- *     			R_PARISC_LTOFF14R <.got entry offset from dp>
+ *     20 20 00 00     ldil 0,r1
+ *			R_PARISC_DIR21L <addr of kernels opd entry>
+ *     34 21 00 00     ldo 0(r1),r1
+ *			R_PARISC_DIR14R <addr of kernels opd entry>
  *     50 21 00 20     ldd 10(r1),r1
- *     e8 20 d0 00     bve (r1)
- *     08 00 02 40     nop
- *
+ *     e8 20 d0 02     bve,n (r1)
  */
 
 /* NOTE: to keep the code cleaner we make all stubs the same size.
@@ -120,10 +120,10 @@
 
 unsigned char hppa64_stub_millicode[] =
 {
-       0x53, 0x61, 0x00, 0x00,
+       0x20, 0x20, 0x00, 0x00,
+       0x34, 0x21, 0x00, 0x00,
        0x50, 0x21, 0x00, 0x20,
-       0xe8, 0x20, 0xd0, 0x00,
-       0x08, 0x00, 0x02, 0x40,
+       0xe8, 0x20, 0xd0, 0x02,
 };
 
 /*======================================================================*/
@@ -575,15 +575,23 @@
 		     */
 		    unsigned char *stub;
 
-		    if (!strncmp(isym->root.name, "$$", 2))
+		    if (!strncmp(isym->root.name, "$$", 2)) {
 			stub = hppa64_stub_millicode;
-		    else
+			memcpy((Elf64_Addr *)(hfile->stub->contents + se->offset),
+					stub, SIZEOF_STUB);
+			v = (Elf64_Addr)isym->root.value;
+			ret = patch_21l(v, (Elf64_Word *)(hfile->stub->contents + se->offset));
+			if (ret == obj_reloc_ok)
+			    ret = patch_14r(v, (Elf64_Word *)(hfile->stub->contents + se->offset + 4));
+		    }
+		    else {
 			stub = hppa64_stub_extern;
+			memcpy((Elf64_Addr *)(hfile->stub->contents + se->offset),
+					stub, SIZEOF_STUB);
+			v = (Elf64_Addr)(hfile->got->header.sh_addr + ge->offset) - gp;
+			ret = patch_14r2(v, (Elf64_Word *)(hfile->stub->contents + se->offset));
+		    }
 		    se->reloc_done = TRUE;
-		    memcpy((Elf64_Addr *)(hfile->stub->contents + se->offset),
-	    			stub, SIZEOF_STUB);
-		    v = (Elf64_Addr)(hfile->got->header.sh_addr + ge->offset) - gp;
-		    ret = patch_14r2(v, (Elf64_Word *)(hfile->stub->contents + se->offset));
 		}
 		v = hfile->stub->header.sh_addr + se->offset;
 	    }





From - Thu Nov 08 21:17:08 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: 64 bit kernel and module dp values again
Date: Fri, 6 Apr 2001 12:31:19 +0100
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In-Reply-To: <Pine.LNX.4.21.0104050920520.13605-100000@front.linuxcare.com.au>; from alan@linuxcare.com.au on Thu, Apr 05, 2001 at 09:27:32AM +1000
Xref: news.gmane.org gmane.linux.ports.parisc:10698

On Thu, Apr 05, 2001 at 09:27:32AM +1000, Alan Modra wrote:
> On Wed, 4 Apr 2001, Richard Hirst wrote:
> 
> > On Wed, Apr 04, 2001 at 04:32:40PM +0100, Richard Hirst wrote:
> > > Hi Alan,
> > >   Code from drivers/block/loop.o, built as a 64 bit module, using
> > > xc-20010307.tgz
> > > 
> > > The stub to call $$divU is called with the kernels dp value as that is
> > > what dp is left with follwing the __muldi3 call.
> 
> Sorry Richard, I should have picked up on this when I saw you exporting
> millicode from the kernel yesterday.

Just for the record, I've solved this problem by reworking the stub
that modutils builds for 64 bit modules to call millicode functions
in the kernel.  The stub cannot assume dp is valid for the local module,
and must not modify dp.

If we have further problems in this area we should consider linking
each module against libgcc.a, so they each have their own local
millicode functions.

Richard





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From: Matt London <matt@knm.yi.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problems booting
Date: Fri, 6 Apr 2001 23:39:25 +0100 (BST)
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  This message is in MIME format.  The first part should be readable text,
  while the remaining parts are likely unreadable without MIME-aware tools.
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---1463811839-317009567-986596765=:4811
Content-Type: TEXT/PLAIN; charset=US-ASCII

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,

I've recently been given an HP apollo Series 700 box. I'm not sure exactly
what it is, other than that it says A1991XR on the base.

Anyway, I ran across palinux (via the route of NetBSD->OpenBSD->palinux)
(I run slackware on my x86 boxen), downloaded the iso and burnt it to
CD. I then dropped in an NEC SCSI cdrom, and a Seagate ST3655N 500M
drive. I have 4 sticks of RAM, in slots J12, J13, J14 and J15 (alternate
rows starting toward the back of the machine). I'm using a serial console.

When the system boots, it gets about as far as calibrating the delay loop
and drops out with a stack dump (see attached file).

I was just wondering if there's any incite into what's up with this :&)

- -- Matt

- ---
Web Page:
  http://knm.yi.org/
  http://pkl.net/~matt/

PGP Key fingerprint = 00BF 19FE D5F5 8EAD 2FD5  D102 260E 8BA7 EEE4 8D7F
PGP Key http://knm.yi.org/matt-pgp.html
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---1463811839-317009567-986596765=:4811--




From - Thu Nov 08 21:17:09 2018
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X-Mozilla-Keys:                                                                                 
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] rpc.lockd hangs  (was Re: portmap deb)
Date: Sat, 7 Apr 2001 00:15:00 +0100
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Cc: randolph@tausq.org, lamont@hp.com,
	debian-buildd@list.parisc-linux.org,
	parisc-linux@lists.parisc-linux.org
To: Matt Taggart <taggart@carmen.fc.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:10700

On Fri, Apr 06, 2001 at 03:04:01PM -0600, Matt Taggart wrote:
> nfs-common is currently having problems with rpc.lockd, Richard is looking in 
> to it.

Ugh.  nfs-common tries to invoke nfsservctl() and quotactl() via calls
to syscall() in glibc, such as:

    return syscall(SYS_quotactl, cmd, special, id, addr);

For most architectures, glibc as an asm implementation of syscall(),
and our would be in

glibc/sysdeps/unix/sysv/linux/hppa/syscall.S

except that it is just a cpu loop at the moment - hence rpc.lockd
hangs eating cpu.

I guess a one time glibc didn't provide nfsservctl() and quotactl()
wrappers, so syscall() was used.

Options (somone who knows the area better than me can correct
these):

a) Implement syscall() in glibc - I made an initial stab at that,
included below, but I didn't get as far as building it.  Not sure
if my approach was valid for hppa, with some args on stack, etc.

b) change nfs-common to use the proper glibc wrappers for these
functions, rather than syscall().

c) change nfs-common to use INLINE_SYSCALL or something..


I tried a quick hack at (b) and rebuilt.  I didn't get as far as trying
the new binaries yet, because I was doing this on a 64 bit machine, and...
both nfsservctl and quotactl are unimplemented on 64 bit :(

So, we need to implement wrappers for those, and fix either glibc or
nfs-common.

Richard


==================== quick'n'dirty patch to nfs-common =====================

diff -ur nfs-utils.ori/support/nfs/nfsctl.c nfs-utils/support/nfs/nfsctl.c
--- nfs-utils.ori/support/nfs/nfsctl.c	Mon Oct 18 17:21:12 1999
+++ nfs-utils/support/nfs/nfsctl.c	Fri Apr  6 16:02:28 2001
@@ -20,5 +20,9 @@
 int
 nfsctl (int cmd, struct nfsctl_arg * argp, union nfsctl_res * resp)
 {
+#ifdef __hppa__
+  return nfsservctl(cmd, argp, resp);
+#else
   return syscall (__NR_nfsctl, cmd, argp, resp);
+#endif
 }
diff -ur nfs-utils.ori/utils/rquotad/quotactl.c nfs-utils/utils/rquotad/quotactl.c
--- nfs-utils.ori/utils/rquotad/quotactl.c	Mon Oct 18 17:21:12 1999
+++ nfs-utils/utils/rquotad/quotactl.c	Fri Apr  6 15:58:19 2001
@@ -24,7 +24,9 @@
 #include <unistd.h>
 #include <sys/syscall.h>
 
+#ifndef __hppa__
 int quotactl(int cmd, const char * special, int id, caddr_t addr)
 {
 	return syscall(SYS_quotactl, cmd, special, id, addr);
 }
+#endif

============================================================================


===================== initial attempt at syscall for glibc =================

ENTRY(syscall)
        copy %r26,%r20
        copy %r25,%r26
        copy %r24,%r25
        copy %r23,%r24
        ldw -52(%r30),%r23
#if 0
        /* Hmm, can we be sure there is space for two args on the stack,
         * when the syscall() was called with fewer args?  How many args
	 * must we allow for?
         */
        ldw -56(%r30),%r22
        stw %r22,-52(%r30)
#endif
        ble  0x100(%sr2,%r0)
        nop
        ldi -0x1000,%r1
        cmpb,>>=,n %r1,%ret0,0f
        stw %rp, -20(%sr0,%r30)
        stw %ret0, -24(%sr0,%r30)
        .import __errno_location,code
        bl __errno_location,%rp
        ldo 64(%r30), %r30
        ldo -64(%r30), %r30
        ldw -24(%r30), %r26
        sub %r0, %r26, %r26
        stw %r26, 0(%sr0,%ret0)
        ldo -1(%r0), %ret0
        ldw -20(%r30), %rp
0:
	ret,n

============================================================================





From - Thu Nov 08 21:17:09 2018
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From: LaMont Jones <lamont@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/100 crash
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------- =_aaaaaaaaaa0
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Using the new nfsroot tarball, and an admittedly suspect 715/100 (it
suddenly decided that it didn't like to have more than 2 SIMs in it - 
'missing or bad memory card in slot 2'), I get the attached output
during boot.

Personally, I'm going to swap the machine out for a B160L.  Anyone
who wants the 715/100 can let me know...

Interestingly, auto boot fails, but boot from pri after that works...

lamont

------- =_aaaaaaaaaa0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <17850.986599985.2@cranston.fc.hp.com>

0x04.1081
0x04.1080
0x04.1082
0x04.1086
0x04.1087
0x04.108A
0x04.108B
0x04.108C
0x04.1083
0x04.10D1
0x04.10D2
0x04.2090
0x04.2091
0x04.209F
0x04.2096
0x04.2094
0x04.2095
0x06.C201
0x04.10DA
0x04.10D7
0x04.10D8


----------------------------------------------------------------------------
BootRom Version    1.4  
Memory Size:  64 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.
0x04.2097
0x04.2098
0x04.2099
0x04.209A
0x04.209B
0x04.1091
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0x04.1093
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0x04.1096
0x04.1090
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0x04.4081
0x04.4082
0x06.C2EA
0x06.C2EF
0x04.300C
0x04.300C
0x04.300B

Starting Auto boot

0x06.C500
0x04.8005

Warning: Auto boot failed.
Auto boot path is not valid.


Auto boot failed and Auto search is off.

Boot process failed. press <ESCAPE> to Continue.
----------------------------------------------------------------------------
Command                                Description
-------                                -----------
Auto [boot|search] [on|off]            Set/show auto mode
Boot [pri|alt [isl]]                   Boot from primary or alternate path
Boot [scsi|eisa.<slot>[.<addr>]] [isl] Boot from SCSI or EISA
Boot lan[.<addr>] [install] [isl]      Boot from LAN
Chassis [on|off]                       Set/show chassis codes display mode
DefaultSS                              Reboot and set EEPROM to default values
Diagnostic [on|off]                    Set/show diagnostic boot mode
Fastboot [on|off]                      Set/show fast boot mode
Help                                   Show this command menu
Information                            Show system information
LanAddress                             Show LAN station addresses
Monitor [<DEV>[.<type>]]               Set/show graphics monitor type
                                       (<DEV>=graphics|graphics_<1|2>)
Path [pri|alt [<DEV>[.<addr>]]]        Set/show boot source path
                                       (<DEV>=lan|scsi|eisa.<slot>)
Path [console [<DEV>[.<parm>]]]        Set/show boot console path
                                       (<DEV>=<RS232>|<GRAPH>
                                        <RS232>=rs232|rs232_2
                                        <parm>=<baud>.<length>.<parity>
                                        <GRAPH>=graphics|graphics_<1|2>
                                        <parm>=<monitor>)
Path [keyboard [hil|ps2]]              Set/show boot keyboard path
Pim [hpmc|toc|lpmc]                    Show PIM info
Search [ipl] [scsi|eisa]               Show potential boot devices
Search [ipl] [lan [install]]           Show potential boot LAN devices
Secure [on|off]                        Set/show security mode
----------------------------------------------------------------------------
BOOT_ADMIN> bo pri
0x06.C740




Attempting to boot.

Loading Initial Program Loader

0x06.C580

IPL successfully loaded


Booting
0x06.C7FF
palo ipl lamont@ldl Fri Mar 23 12:00:56 MST 2001
0/vmlinux 2581653 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=15.1.44.229 console=ttyS0'
Kernel: partition 0 file /vmlinux
ELF32 executable
Entry 00100000 first 00100000 n 6
Segment 0 load 00100000 size 1486276 mediaptr 0x1000
Segment 1 load 0026c000 size 182328 mediaptr 0x16c000
Segment 2 load 0029c000 size 90112 mediaptr 0x199000
Segment 3 load 002b2000 size 132272 mediaptr 0x1af000
Segment 4 load 002d4000 size 8192 mediaptr 0x1d0000
Segment 5 load 00303608 size 75392 mediaptr 0x1d2608
branching to kernel entry point 0x00100000
Set default PSW W bit to 0
PDC Console Initialized
Linux version 2.4.0 (lamont@ldl) (gcc version 2.97 20010203 (experimental)) #19 Fri Apr 6 08:32:52 MDT 2001
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Older Legacy Box
setup_cmdline(0x64d58,0x64d58,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=15.1.44.229 console=ttyS0'
PALO initrd 0-0
model   000060b0 00000481 00000000 00000000 7800e8a4 00000000 00000004 00000072 00000072
vers    0000000b
CPUID   vers 0 rev 0
model   9000/715
Total Memory: 64 Mb
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf4000000, versions 0x4, 0x0, 0x77, 0x0, 0x0
2. Mirage GSC Builtin Graphics (10) at 0xf8000000, versions 0x13, 0x0, 0x85, 0x0, 0x0
3. Mirage Core BA (11) at 0xf0100000, versions 0x29, 0x0, 0x81, 0x0, 0x0
4. Mirage Core SCSI (10) at 0xf0106000, versions 0x29, 0x0, 0x82, 0x0, 0x0
5. Mirage Core LAN (802.3) (10) at 0xf0107000, versions 0x29, 0x0, 0x8a, 0x0, 0x0
6. Mirage Core RS-232 (10) at 0xf0105000, versions 0x29, 0x0, 0x8c, 0x0, 0x0
7. Mirage Core Centronics (10) at 0xf0102000, versions 0x29, 0x0, 0x74, 0x0, 0x0
8. Mirage Audio (10) at 0xf0104000, versions 0x29, 0x0, 0x7b, 0x0, 0x0
9. Mirage Core PC Floppy (10) at 0xf010a000, versions 0x29, 0x0, 0x83, 0x0, 0x0
10. Mirage Core PC Keyboard (10) at 0xf0108000, versions 0x29, 0x0, 0x84, 0x0, 0x0
11. Mirage Core PC Keyboard (10) at 0xf0108100, versions 0x29, 0x0, 0x84, 0x0, 0x0
12. Mirage Wax BA (11) at 0xf0200000, versions 0x13, 0x0, 0x8e, 0x0, 0x0
13. Mirage 100 Wax HIL (10) at 0xf0201000, versions 0x13, 0x0, 0x73, 0x0, 0x0
14. Mirage Wax RS-232 (10) at 0xf0202000, versions 0x13, 0x0, 0x8c, 0x0, 0x0
15. Mirage 100 (0) at 0xfffbe000, versions 0x60b, 0x0, 0x4, 0x0, 0x81
16. Mirage 100 (1) at 0xfffbf000, versions 0x4b, 0x0, 0x9, 0x0, 0x0
That's a total of 16 devices.
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=15.1.44.229 console=ttyS0
Calibrating delay loop... 99.73 BogoMIPS
Memory: 62172k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xf0100000 found.
LED display at f00e0000 registered
Wax at 0xf0200000 found.
Wax: HIL Keyboard-NMI registered.
Wax EISA bus adapter version 0x5761 at 0xf0200000
Initializing Lasi PS/2-keyboard port at 0xf0108000...
Support for Lasi PS/2-psaux not yet available !
Found HIL at 0xf0201000, IRQ 126
HIL: no keyboard present.
Warning : device (10, 0x13, 0x0, 0x73, 0x0) NOT claimed by HIL 712, 715 or similiar
Found i82596 at 0xf0107000, IRQ 87
early initialization of device eth0 is deferred
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
Lasi PS/2 wait 4460
Lasi PS/2 wait 2119
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
eth0: 82596 at 0xf0107000, 08 00 09 4A 45 BC IRQ 87.
82596.c $Revision: 1.15 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0202800 (irq = 121) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c710 (SCSI-ID 7) at f0106100, IRQ 86, options 0
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: Good, target data areas are dma coherent
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: MICROP    Model: 2112              Rev: 4024
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: Quantum   Model: VP32210           Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 3, lun 0
Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)
Partition check:
 sda: sda1 sda2 sda3
SCSI device sdb: 4194685 512-byte hdwr sectors (2148 MB)
 sdb: sdb1
linear personality registered
raid0 personality registered
raid1 personality registered
raid5 personality registered
raid5: measuring checksumming speed
   8regs     :    98.298 MB/sec
   8regs_prefetch:    97.917 MB/sec
   32regs    :   118.491 MB/sec
   32regs_prefetch:   164.973 MB/sec
raid5: using function: 32regs_prefetch (164.973 MB/sec)
md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md.c: sizeof(mdp_super_t) = 4096
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 4096)
eth0: link ok.
Sending BOOTP requests..... OK
IP-Config: Got BOOTP answer from 15.1.44.229, my address is 15.1.44.235
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 15.1.44.229
Looking up port of RPC 100005/2 on 15.1.44.229
VFS: Mounted root (nfs filesystem) readonly.
INIT: version 2.78 booting

Dumping Stack from 105ac000 to 105ad540:
c000 00000000 00000000 00000000 00000001 10281460 00000001 00000000 ffffffff
c020 00000006 00000000 00000000 104ee1c0 00000000 00000000 ffffffff 1002c03c
c040 1004003c 00000454 102d4000 105d0000 104ee1c0 102842dc 00000000 00000012
c060 00000000 00000000 80000000 0000000b 0000000a 00000000 0000000a 0000000b
c080 00000000 105d0000 105d0000 00000000 00000000 00000000 105ac098 105ac098
c0a0 00000000 102f1d60 00000000 105ac0ac 105ac0ac 00000000 00000000 00000000
c0c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c0e0 105ac000 1011b0a8 00000000 00000000 00000000 00000000 00000446 00000002
c100 000002e8 00000002 00000001 00000000 00000000 00000000 00000000 80000000
c120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1c0 00000000 fffffeff 00000000 fffffeff 00000000 102820a8 ffffffff ffffffff
c1e0 ffffffff ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff
c200 ffffffff ffffffff 000003cb 000003cb 00000400 00000400 ffffffff ffffffff
c220 ffffffff ffffffff ffffffff ffffffff 00007263 53002e64 72000000 00000000
c240 00000000 00000000 105b4000 00000000 00000000 00000000 00000000 00000040
c260 400d5717 faf00a80 0000003f 00000040 faf00708 4014eb18 00000065 faf006cc
c280 0000b294 00000040 faf008d0 00000001 00000063 faf006cc 00000020 0000b270
c2a0 faf00790 4014eb18 0000000b faf00708 81010100 2f2f2f2f 0000b008 faf006cc
c2c0 faf00708 00009af8 faf00708 0000b1a8 faf00b40 400d52db 00000000 00000000
c2e0 00000000 00000000 00000000 00000000 00000000 00000000 00000001 00000000
c300 00000002 1014a9fc 00000000 00000000 00000000 00000000 1002c000 104fd0c0
c320 102d4000 00000000 10286064 102f1810 102f4810 1026c010 102f1010 00000001
c340 1028a010 101390c4 102f1010 102d24b0 102d24b0 102d2420 104fe000 1028660c
c360 00000000 00000002 00000000 1029cea4 0004000e 00000008 102f1810 104fe000
c380 1028660c 1014a8e4 cccccccd 00000030 00000000 cccccccd 10286064 00000002
c3a0 1023f0d0 00000007 10316d40 10284e40 00000000 00000008 ffffffff 102f4810
c3c0 1026c010 1013922c 10448c00 10284e40 1028a010 102f1810 00000005 00000005
c3e0 00000000 00000005 00000005 00000005 00000005 00000005 00000005 00000005
c400 400a9303 400a9307 000000ae 105ac000 faf00708 105acc80 10105cf0 00000014
c420 36980dfe 00000005 40147654 00000000 00287000 00000000 10452160 104531e0
c440 00000000 104514e0 00000000 00000000 00000000 105ac450 00000000 00000000
c460 00000000 00000000 00000000 00000000 00000000 00000001 00000002 00000000
c480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4a0 00000000 00000000 00000000 1010624c 00000000 00000000 00000000 00000000
c4c0 4014eb18 faf00708 faf00708 81010100 faf00a80 faf00708 00000040 0000003f
c4e0 faf00a80 00000000 00000000 10106efc 00000000 00000000 00000000 00000000
c500 00000078 00000065 00000000 00000040 00000000 00000000 00000000 00000000
c520 00000000 00000000 faf008d0 10106db8 00000000 4014eb18 faf008d0 00000000
c540 faf006cc 4014eb18 0000b008 faf006cc 00000065 102df810 102f1810 0000000b
c560 102dff30 00000001 00000001 10100904 faf007b0 105ac258 0000b270 faf00790
c580 4014eb18 faf00708 7f454c46 01020103 00000000 00000000 0003000f 00000001
c5a0 00002da0 00000034 0006a5a8 00000210 00340020 00030028 00190016 00000001
c5c0 00000000 00000000 00000000 00019240 00019240 00000005 00001000 00000001
c5e0 00019240 0001a240 0001a240 00000a44 00001a00 00000007 00001000 00000002
c600 00019bfc 0001abfc 00000000 00000000 00000000 00000000 00000000 00000000
c620 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c640 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c660 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c680 00000000 00000000 faf00190 00000001 104fd2a0 00000000 00000000 ffffffff
c6a0 ffffffff ffffffff 00000002 00000009 104fe000 00000000 faf000e0 1047e228
c6c0 4014eb18 faf00708 104fe000 105ac258 104fe000 10026200 10065580 10025820
c6e0 104ec8a0 00120f17 16000000 101aa3e8 00000002 105b4000 faf00b48 faf00b48
c700 10065580 10065800 10065580 10292128 0000b294 00000078 00000065 100473e0
c720 1047b3a0 104fd1e0 1047cd60 10145018 00000000 00000000 00000000 00000000
c740 faf006cc 00000065 105ac258 faf006cc 0000b008 104fe000 00000000 00000009
c760 00000001 0000106c 104fe000 10144b2c 00000000 00000000 00000000 00000000
c780 00000002 100658a0 00000000 00000063 00000000 00000080 00000080 105ac588
c7a0 00000006 00000065 104fd1e0 10144de0 104fd1e0 1047cd60 00000001 00000000
c7c0 faf00708 00000000 2f62696e 2f736800 73680a23 0a232072 63530909 43616c6c
c7e0 20616c6c 20533f3f 2a207363 72697074 7320696e 202f6574 632f7263 104fe000
c800 105ac258 faf006cc 0000b008 00000001 105ac000 00000000 00000000 105ac000
c820 00000000 00000000 00000001 10143efc 00000040 1047cd60 00000006 00000065
c840 105ac588 00000000 00000000 105ac58b 102842c4 101541a8 00000000 105ac748
c860 00000065 105ac000 00000000 00000000 00000000 00000001 00000063 faf006cc
c880 104fd1e0 104fd1e0 00000080 00000000 105ac7c8 00000000 faf00790 0000b270
c8a0 00000020 faf006cc 00000063 101541d4 faf008d0 00000040 0000b294 102e2810
c8c0 102e2810 105ac258 00000000 105ac588 fffffff8 105ac258 105ac588 00000009
c8e0 00000001 095f0000 105ac258 10144b2c 00000000 00000000 00000000 00000000
c900 105970a0 104fd1e0 00000000 00000010 00000000 00000080 00000080 105ac588
c920 00001000 105ac608 0000b294 10144de0 faf008d0 00000001 00000063 faf006cc
c940 00000000 105ac588 7f454c46 01020103 00000000 00000000 0002000f 00000001
c960 0000e7e8 00000034 000787b0 00000210 00340020 00060028 001c001b 105ac7c8
c980 7f454c46 01020103 00000000 00000000 0003000f 00000001 00002da0 00000034
c9a0 0006a5a8 00000210 00340020 00030028 00190016 00000000 7f454c46 01020103
c9c0 00000000 00000000 0003000f 00000001 00002da0 00000034 00000000 1026c010
c9e0 00000000 00000001 40000000 00001000 00000001 00000001 0007e7b0 00000003
ca00 00001000 00078f3c 00075d78 00078f3c 105ac948 00000000 faf00790 0000b270
ca20 00000020 faf006cc 00000063 00000001 faf008d0 00000040 0000b294 102e2810
ca40 105ac258 00000000 105ac588 00000000 102842dc 10154ca0 105ac958 105ac8c8
ca60 105ac258 105ac000 0000b294 1012a300 faf008d0 00000001 00000063 faf006cc
ca80 faf00790 0000b270 00000073 40000000 00000063 00000001 faf008d0 00000040
caa0 0000b294 102e2810 105ac258 101551c8 104fd2a0 105ac910 00000080 10597640
cac0 105ac000 40002da0 00000003 00001034 00000004 00000020 00000005 00000006
cae0 00000007 40000000 00000008 10154440 00000009 0000e7e8 0000000b 00000000
cb00 000cf80f 00000006 10154480 105ac000 0000000f 40002da0 104fd2a0 00075d78
cb20 10463b20 00000000 00001802 105ac588 10024940 00000006 104fd1e0 00000002
cb40 105ac258 10463a60 00078f3c 00001000 104ee1c0 00079000 00000001 0000000f
cb60 105acb88 000000c3 00078f3c 1026c010 00079000 00000680 105acd40 1012fa50
cb80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cba0 00000001 00000000 00000002 1014a9fc 00000000 00000000 00000000 00000000
cbc0 1002c000 104fd0c0 102d4000 00000000 10286064 102f1810 102f4810 1026c010
cbe0 102f1010 00000001 1028a010 101390c4 102f1010 102d24b0 102d24b0 102d2420
cc00 104fe000 1028660c 00000000 00000002 00000000 1029cea4 0004000e 00000008
cc20 102f1810 104fe000 1028660c 1014a8e4 cccccccd 00000030 00000000 cccccccd
cc40 10286064 00000002 1023f0d0 00000007 10316d40 10284e40 00000000 00000008
cc60 ffffffff 102f4810 1026c010 1013922c 10448c00 10284e40 1028a010 102f1810
cc80 00000000 00000006 00000000 00000006 00000000 00000000 00000000 00000000
cca0 00000000 00000000 1023c9b0 1023c9ac 00000000 00000000 104ee1c0 104ec7e0
ccc0 00000077 0000001c 0f405222 00000006 00078f3c 10284e40 00000000 00000008
cce0 ffffffff 102f4810 1026c010 1016caec 10448c00 10284e40 1028a010 102f1810
cd00 00001802 00000000 00000002 00000000 00000000 105977e0 10597640 10597640
cd20 00000000 00000000 1023c9b0 10106720 00000000 00000000 105acac8 105acc10
cd40 1032bfd0 00000011 0f405222 00000006 4001ac84 104f87e0 105ac588 00000000
cd60 00000034 104f8888 00000000 00000fcc 1032bfd0 1032bfb8 00000008 cccccccd
cd80 00000001 0000b294 105ac000 00000000 105acac8 104f000f 104f8420 00000000
cda0 00000000 00000000 00000000 10106720 105acd08 105acd18 00000000 00000000
cdc0 104f0004 00000001 104fd2a0 40002da0 0000000f 105ac000 104fd2a0 10597640
cde0 00000040 00000000 00000000 00000000 105acd18 105acc88 10597640 ffffff0a
ce00 10498b00 104f6ae0 10498ba8 105acbc8 105acc10 00000000 105acd18 10597280
ce20 103035f8 105acd08 105acc10 101024a8 faf006cc 00000020 0000b270 faf00790
ce40 10498b54 10498b00 105ac000 4001a240 100474c0 0000000f 1047b620 105acbc8
ce60 105acc10 10597640 1026e384 10231fc4 102f1810 105aca40 00000000 1047e228
ce80 105ace40 100472e0 10498b00 10170fc8 10498b00 10048064 10498b00 00000000
cea0 00000000 10048064 105acbc8 101024a8 10448c00 10284e40 00000000 102f1810
cec0 10498b00 10048000 104ec8e0 00000010 00001802 00000000 10463b20 00075d78
cee0 00000006 00078f3c 0000000f 105acb00 105ace10 105acd28 100472e0 ffffff0a
cf00 10498b80 100472e0 1004e818 10025720 10498b00 faf008d0 00000001 0000b294
cf20 105ac000 10448c00 0001904d 101011f4 1042e540 00000001 00000000 00000000
cf40 00000001 104fd2a0 104ec860 00000002 105acb00 104ee1dc 105ac000 104ee1dc
cf60 104ec8a0 4001ac84 0000000f 105acb80 10048000 10066680 00000000 00000000
cf80 10048000 10048000 105acd88 105ab1e0 105acf40 100472e0 105acd88 105acc40
cfa0 100251a0 00000000 00000000 10126768 00000000 00000000 00000000 00000000
cfc0 104ee1c0 00000001 104ec8a0 104ee1c0 ffffffff 00078f3c 105ac000 104ee1dc
cfe0 104ec820 10048064 00000000 101009f8 10048000 105acdf0 10048064 10171d20
d000 10048000 10048064 105acd88 1058d068 105acd88 10048fcc 105acbc8 10048000
d020 1047c8d0 00000068 1047c8d0 10126564 00000068 10066680 00000000 00000000
d040 105acb00 00000002 104fd1e0 00000006 10024940 105ac588 0000000f 00078f3c
d060 105ab1e0 00000001 00000008 104ee1c0 00078f3c 104ec8a0 00000057 1047e228
d080 00000090 00004040 0f012ce5 00000000 00000000 00000068 03200801 007c6862
d0a0 0f012ceb 0f012ce5 10048080 1012aa90 0f012ce5 00000000 00000000 00000000
d0c0 102f4810 102f4810 1003ddfc 105976e8 00000079 104fd2a0 00000076 00000008
d0e0 00000000 00078f3c 00000018 10282494 4001ac84 104ec820 00000000 00000000
d100 10048000 00004040 10046080 105ad088 fffffff3 00000010 10026200 100653a0
d120 10463760 00008200 10292140 101292ec 00008000 00008880 00000000 00000000
d140 105976e8 00000073 fffffff4 1032e928 1032e928 105976e8 00000073 00000000
d160 00000000 102823fc 1028274c 10129570 10066680 105acd40 00000057 1047e228
d180 4001ac84 00000000 0f012ce5 00000006 00000000 10220054 03200801 0078c29f
d1a0 0f012ceb 0f012ce5 10048080 1016b814 0f012ce5 00000000 00000000 00000000
d1c0 1003ddf0 0000000c 104fd2a0 1032e928 10597640 1032e928 00000005 00000000
d1e0 105976e8 102823fc 10282724 10282494 00000070 10066680 00000057 1047e228
d200 00000090 10463a84 10025760 00000004 10046080 1002622c 10026200 10065120
d220 10463760 00000000 00000000 1016de18 00000000 00000000 00000000 00000000
d240 104fd2a0 00000002 105ad248 105ad248 105ad248 105ad248 00000001 00000000
d260 00000004 10597640 1032f0dc 101725a8 104fd2a0 1032f0f4 00000000 00000000
d280 0000051d 105ad098 00004000 00000001 10046080 1002622c 10026200 10065580
d2a0 10463760 00008040 10292140 1016dccc 00008000 000086c0 00000000 00000000
d2c0 10597640 105ad248 10597640 105ad2c8 105ad2c8 105ad2c8 00000000 10597640
d2e0 105ad248 00000001 00000000 10235490 00000000 00000000 00000000 00000000
d300 0006ff0f 10303010 10235490 10597640 105aca08 10463960 00000000 00000073
d320 00000002 104fd2a0 00000079 102826bc 102f4810 102f4810 104ec8a0 10597640
d340 00000001 10463a60 00078f3c 00000000 105977e0 102f4ba8 1016b7a4 00000073
d360 00000000 00000000 1024f800 1026c010 00000000 00000002 105ad540 101292ec
d380 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d3a0 00000001 00000000 00000002 1014a9fc 00000000 00000000 00000000 00000000
d3c0 1002c000 104fd0c0 102d4000 00000000 10286064 102f1810 102f4810 1026c010
d3e0 102f1010 00000001 1028a010 101390c4 102f1010 102d24b0 102d24b0 102d2420
d400 104fe000 1028660c 00000000 00000002 00000000 1029cea4 0004000e 00000008
d420 102f1810 104fe000 1028660c 1014a8e4 cccccccd 00000030 00000000 cccccccd
d440 10286064 00000002 1023f0d0 00000007 10316d40 10284e40 00000000 00000008
d460 ffffffff 102f4810 1026c010 1013922c 10448c00 10284e40 1028a010 102f1810
d480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d4a0 00000000 00000000 10235490 10235494 00000000 00000000 102d24b0 102d2420
d4c0 104de0e0 0000001a 48d30968 00000000 000004b4 1029cea4 0004000e 00000008
d4e0 102f1810 104fe000 1028660c 1014a8e4 cccccccd 00000030 00000000 cccccccd
d500 10286064 00000002 1023f0d0 00000007 10316d40 10284e40 00000000 00000008
d520 ffffffff 102f4810 1026c010 10106720 10448c00 10284e40 1028a010 102f1810

Kernel Fault: Code=26 regs=105ad300 (Addr=000004b4)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111
r0-3	 00000000 10303010 10235490 10597640
r4-7	 105aca08 10463960 00000000 00000073
r8-11	 00000002 104fd2a0 00000079 102826bc
r12-15	 102f4810 102f4810 104ec8a0 10597640
r16-19	 00000001 10463a60 00078f3c 00000000
r20-23	 105977e0 102f4ba8 1016b7a4 00000073
r24-27	 00000000 00000000 1024f800 1026c010
r28-31	 00000000 00000002 105ad540 101292ec
sr0-3	 00000000 00000000 00000000 00000000
sr4-7	 00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10235490 10235494
 IIR: 48d30968    ISR: 00000000  IOR: 000004b4
ORIG_R28: 102d24b0

------- =_aaaaaaaaaa0--




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From: "Brian Stewart" <pdksh@hotmail.com>
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Subject: Re: [parisc-linux] Problems booting
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You have a model 710 50Mhz Bushmaster. I wish you luck, the 710 has some
problems with interrupts with the SCSI controller and Lan Controller. I have
been unable to boot my 710 for a couple of weeks. It will run mkLinux but
with some problems. I wish you luck. I have been trying to address the
interrupt issues with the lan controller but I am afraid it is beyond my
ability.

Let me know how you make out. Try disabling your Parallel port in the
kernel.

----- Original Message -----
From: "Matt London" <matt@knm.yi.org>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Friday, April 06, 2001 6:39 PM
Subject: [parisc-linux] Problems booting


> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi,
>
> I've recently been given an HP apollo Series 700 box. I'm not sure exactly
> what it is, other than that it says A1991XR on the base.
>
> Anyway, I ran across palinux (via the route of NetBSD->OpenBSD->palinux)
> (I run slackware on my x86 boxen), downloaded the iso and burnt it to
> CD. I then dropped in an NEC SCSI cdrom, and a Seagate ST3655N 500M
> drive. I have 4 sticks of RAM, in slots J12, J13, J14 and J15 (alternate
> rows starting toward the back of the machine). I'm using a serial console.
>
> When the system boots, it gets about as far as calibrating the delay loop
> and drops out with a stack dump (see attached file).
>
> I was just wondering if there's any incite into what's up with this :&)
>
> - -- Matt
>
> - ---
> Web Page:
>   http://knm.yi.org/
>   http://pkl.net/~matt/
>
> PGP Key fingerprint = 00BF 19FE D5F5 8EAD 2FD5  D102 260E 8BA7 EEE4 8D7F
> PGP Key http://knm.yi.org/matt-pgp.html
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.0.4 (GNU/Linux)
> Comment: For info see http://www.gnupg.org
>
> iD8DBQE6zkWkJg6Lp+7kjX8RAhzVAJ4zbUhgH+ob+G3Yh+bjnSP4tkMGJwCeNDfK
> d9JX4Uk4TOfJloJ6YenIUB0=
> =QXmq
> -----END PGP SIGNATURE-----
>




From - Thu Nov 08 21:17:09 2018
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From: Rod Smart <snaketails@optushome.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Palo question.
Date: Sat, 07 Apr 2001 21:45:18 +1000
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    Hi there.

    I hear there is a new Palo version released ?

    Where can I get a copy from, the link I received from the guys in
France was for the Debian archive.

    Is there a version just in a tarball as I don't have Debian on my
own x86 system, and I cannot de-archive the latest RPM archives as I am
unable to upgrade my RPM program (wierd)

    So, I would just like the tarball of the new Palo package if it is
available please.

    After I have that, I'll be able to get back to playing with Thomas's
Kernels ;o)

    Thanks ;o)





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From: Alan Modra <alan@linuxcare.com.au>
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On Sat, 7 Apr 2001, Rod Smart wrote:

>     Where can I get a copy from, the link I received from the guys in
> France was for the Debian archive.
> 
>     Is there a version just in a tarball as I don't have Debian on my
> own x86 system

debian packages are really neat in that all you need is `ar'

"ar xv <package>"

will get you a couple of tar.gz files, and it's fairly easy from there.

Alan





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From: Adam Di Carlo <adam@onshore.com>
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Subject: [parisc-linux] Re: Woody installer for PARISC
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"Paul J.Y. Lahaie" <pjlahaie@linuxcare.com> writes:

> Here are the changes I've made to the boot-floppies package to support
> the PARISC architecture.

Glad to hear it.  Let me know if you don't have an account on
cvs.debian.org and you want a debian-boot pserver account.  You can
crypt a username/password with my Debian PGP key (aph@debian.org) and
send it to me privately and I can create that.

> utilities/dbootstrap/main_menu.c:
> - Remove options that aren't applicable to PARISC.
>   (Make boot floppy, PCMCIA, etc..)

> utilities/dbootstrap/partition_config.c:
> - Add PALO message for partition creation.
> 
> 
> There are a few more changes I needed to make to get a working installer
> for PARISC, unfortunately some of them are because of limitations in
> the current PARISC distribution (kernel.sh was modified to not require
> a kernel .deb since we currently don't have one and the constantly
> changing kernel makes it unwieldy to build kernel .debs).

Wait a minute... you don't have a kernel nor a boot-disk?  How do
people boot?

-- 
.....Adam Di Carlo....adam@onshore.com.....<URL:http://www.onshored.com/>





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From: Martin Schulze <joey@finlandia.infodrom.north.de>
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Adam Di Carlo wrote:
> > There are a few more changes I needed to make to get a working installer
> > for PARISC, unfortunately some of them are because of limitations in
> > the current PARISC distribution (kernel.sh was modified to not require
> > a kernel .deb since we currently don't have one and the constantly
> > changing kernel makes it unwieldy to build kernel .debs).
> 
> Wait a minute... you don't have a kernel nor a boot-disk?  How do
> people boot?

You parsed it wrong Adam.  They don't have a .deb for a kernel, they
probably do have a kernel, though it is changing frequently.

Regards,

	Joey

-- 
No question is too silly to ask, but, of course, some are too silly
to answer.   -- Perl book




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Martin Schulze <joey@finlandia.infodrom.north.de> writes:

> You parsed it wrong Adam.  They don't have a .deb for a kernel, they
> probably do have a kernel, though it is changing frequently.

Relieved to hear that.  

Sounds like they should put their effort in debian-installer then?  If
they don't even have a basic toolchain and kernel, and boot-floppies
will be obsoleted by end of year, is it worth it?

-- 
.....Adam Di Carlo....adam@onshore.com.....<URL:http://www.onshored.com/>





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From: David Wragg <dpw@doc.ic.ac.uk>
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Subject: [parisc-linux] Assembly language conventions
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Where should I look for details of the assembly language conventions
used on linux/PARISC (calling conventions, register uses, sequences
for putting a 32-bit constant into a register, PIC conventions, etc.)?

The nearest thing I have found is
<http://devresource.hp.com/STK/toc_ref_details.html#32runtime11>, but
I'm not sure how much of that carries over to the Linux port.  If
there is an appropriate document, could a link be added to the
technical documents web page.


David Wragg




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On 8 Apr 2001, David Wragg wrote:

> Where should I look for details of the assembly language conventions
> used on linux/PARISC (calling conventions, register uses, sequences
> for putting a 32-bit constant into a register, PIC conventions, etc.)?
> 
> The nearest thing I have found is
> <http://devresource.hp.com/STK/toc_ref_details.html#32runtime11>, but
> I'm not sure how much of that carries over to the Linux port.

Most of it regarding register usage and calling conventions.  Some
differences that spring to mind:

o  pa-linux sets all space regs the same (so simpler import stubs for
   shared libs can be used, and export stubs aren't necessary)
o  pa-linux doesn't support argument relocation stubs.  Compile with
   prototypes!
o  section names follow standard ELF naming.

If you want to learn tricks of assembly language programming on parisc,
like loading a 32 bit constant into a reg, take a look at gcc -S
output.  gcc is useful for finding details of calling conventions too.

Alan





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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Re: Woody installer for PARISC
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To: Adam Di Carlo <adam@onshore.com>
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On Sun, Apr 08, 2001 at 05:05:05AM -0400, Adam Di Carlo wrote:
> Sounds like they should put their effort in debian-installer then?  If
> they don't even have a basic toolchain and kernel, and boot-floppies
> will be obsoleted by end of year, is it worth it?

we need to have something installable by end of May.

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] Many experience done on 720, but `init' fails !!
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Cc: Christoph Plattner <christoph.plattner@alcatel.at>,
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A week ago, I reported the problem booting PA-Linux 0.5 with the new
kernel and new selfmade cross tool chain.

The last week I used to experience with cross toolchain setup.
The aim was to find away having "one" glibc-2 for cross development
and for the target (to mount, NFS-ROOT). I also used tricks like
	--prefix=/usr and
	make install install_root=/usr/parisc/target....
but the result and discussion with other showed following:

	There must be TWO glibc trees, one for the cross toolchain,
	the other for the target. The second one is built with the 
	method defining prefix to /usr and install it in a target tree.

SO I build sash, a also build a bash (shared and static !), I build
fileutils, text-utils, shell-utils, etc, etc.....
The system boots with bash and I can mount, run programs, etc....

The I build "my own" startup stuff. A /sbin/init.d/xxx , etc/rc.d/xxx
and so on. I also build a sysvinit-2.78 (and 2.77 before), but the
`init'
has it's problems. The error message is:

VFS: Mounted root (nfs filesystem) readonly.
break 0,0: pid=9 command='init'
init[9]: Breakpoint 0

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 102de010 00000000 00000000
r4-7     00000000 00000000 00000000 00000000
r8-11    00000000 00000000 00000000 00000000
r12-15   00000000 00000000 00000040 1012544c
r16-19   13f085c0 13f08000 c804c804 00000001
r20-23   102efcc0 102efcc0 10022800 102efcc0
r24-27   0000002e 00001000 00000000 1024c010
r28-31   00000000 00000000 13f089c0 101312a0
sr0-3    00000000 00000000 00000000 00000001
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 00000000 00000004
 IIR: 00000000    ISR: 00000000  IOR: 00000000
ORIG_R28: 00000000

How can I follow up the thing ?
Is the GDB of the CVS usable  (for example starting gdbserver init 
instead of init and `target remote' via the second serial interface ?)

By the way: I did a "super hack" in the kernel. In the serial interrupt 
routine, I catch the charcater `^\', filter it for `/dev/ttyS0' and 
do a machine_restart(). This is perfect for development !!

With friendly regards
	Christoph P.






-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




From - Thu Nov 08 21:17:09 2018
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From: "Marc Eisenbarth" <Marc_Eisenbarth@baylor.edu>
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Subject: [parisc-linux] C180 Progress
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What is the statis for a Linux install for an HP C180 Visualize? I tried to
install
0.5, but it seems to hang and will not accept input from the keyboard after
the cd
boots up.

Thanks,
-Marc





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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] rpc.lockd hangs  (was Re: portmap deb)
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Cc: Matt Taggart <taggart@carmen.fc.hp.com>, randolph@tausq.org,
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	parisc-linux@lists.parisc-linux.org
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On Sat, Apr 07, 2001 at 12:15:00AM +0100, Richard Hirst wrote:
> Options (somone who knows the area better than me can correct
> these):
> 
> a) Implement syscall() in glibc - I made an initial stab at that,
> included below, but I didn't get as far as building it.  Not sure
> if my approach was valid for hppa, with some args on stack, etc.
> 
> b) change nfs-common to use the proper glibc wrappers for these
> functions, rather than syscall().
> 
> c) change nfs-common to use INLINE_SYSCALL or something..

Actually I prefer (d) [hands up everyone who's surprised?  :-)]  I
don't see why we should implement syscall in assembler.  After all, that
would be the third implementation :-)  Why not have something along the
lines of:

int syscall(int nr, int arg1, int arg, int arg3, int arg4, int arg5, int arg6)
{
	return INLINE_SYSCALL(nr, arg1, arg2, arg3, arg4, arg5, arg6);
}

I don't have a copy of glibc to hand, so i'm not quite sure on the syntax
of INLINE_SYSCALL.

> I tried a quick hack at (b) and rebuilt.  I didn't get as far as trying
> the new binaries yet, because I was doing this on a 64 bit machine, and...
> both nfsservctl and quotactl are unimplemented on 64 bit :(

Ooops.  Clearly, that needs to get fixed.

-- 
Revolutions do not require corporate support.




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From: "Jacek Artymiak" <workstations@poczta.onet.pl>
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Subject: [parisc-linux] Running Apache on PA-RISC Linux
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Hi,

I'd like to run Apache/PHP/MySQL under PA-RISC Linux on my HP 712/100.  Is
PA-RISC Linux stable enough to use it for that purpose or should I stick to
HP-UX for now?

Any help would be greatly appreciated.

Jacek



-- 
 




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From: Adam Di Carlo <adam@onshore.com>
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Subject: Re: [parisc-linux] Re: Woody installer for PARISC
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Matthew Wilcox <matthew@wil.cx> writes:

> On Sun, Apr 08, 2001 at 05:05:05AM -0400, Adam Di Carlo wrote:
> > Sounds like they should put their effort in debian-installer then?  If
> > they don't even have a basic toolchain and kernel, and boot-floppies
> > will be obsoleted by end of year, is it worth it?
> 
> we need to have something installable by end of May.

Ouch.  marketing timelines, eh?  

Well, let me know if anyone who doesn't have an account on
cvs.debian.org need CVS access to the Debian-boot area.  So long as
they are careful to not break other arches or propogate hideous hacks,
its probably best to work directly from CVS.

-- 
.....Adam Di Carlo....adam@onshore.com.....<URL:http://www.onshored.com/>





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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: Re: [parisc-linux] Many experiments on 720, but `init' fails !!
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To: Matthew Wilcox <matthew@wil.cx>,
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The same happens, if I use the `init' statically linked !



Christoph Plattner wrote:
> 
> A week ago, I reported the problem booting PA-Linux 0.5 with the new
> kernel and new selfmade cross tool chain.
> 
> The last week I used to experience with cross toolchain setup.
> The aim was to find away having "one" glibc-2 for cross development
> and for the target (to mount, NFS-ROOT). I also used tricks like
>         --prefix=/usr and
>         make install install_root=/usr/parisc/target....
> but the result and discussion with other showed following:
> 
>         There must be TWO glibc trees, one for the cross toolchain,
>         the other for the target. The second one is built with the
>         method defining prefix to /usr and install it in a target tree.
> 
> SO I build sash, a also build a bash (shared and static !), I build
> fileutils, text-utils, shell-utils, etc, etc.....
> The system boots with bash and I can mount, run programs, etc....
> 
> The I build "my own" startup stuff. A /sbin/init.d/xxx , etc/rc.d/xxx
> and so on. I also build a sysvinit-2.78 (and 2.77 before), but the
> `init'
> has it's problems. The error message is:
> 
> VFS: Mounted root (nfs filesystem) readonly.
> break 0,0: pid=9 command='init'
> init[9]: Breakpoint 0
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111
> r0-3     00000000 102de010 00000000 00000000
> r4-7     00000000 00000000 00000000 00000000
> r8-11    00000000 00000000 00000000 00000000
> r12-15   00000000 00000000 00000040 1012544c
> r16-19   13f085c0 13f08000 c804c804 00000001
> r20-23   102efcc0 102efcc0 10022800 102efcc0
> r24-27   0000002e 00001000 00000000 1024c010
> r28-31   00000000 00000000 13f089c0 101312a0
> sr0-3    00000000 00000000 00000000 00000001
> sr4-7    00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 00000000 00000004
>  IIR: 00000000    ISR: 00000000  IOR: 00000000
> ORIG_R28: 00000000
> 
> How can I follow up the thing ?
> Is the GDB of the CVS usable  (for example starting gdbserver init
> instead of init and `target remote' via the second serial interface ?)
> 
> By the way: I did a "super hack" in the kernel. In the serial interrupt
> routine, I catch the charcater `^\', filter it for `/dev/ttyS0' and
> do a machine_restart(). This is perfect for development !!
> 
> With friendly regards
>         Christoph P.
> 
> --
> -------------------------------------------------------------------------
> private:        christoph.plattner@dot.at
> company:        christoph.plattner@alcatel.at
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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Subject: Re: [parisc-linux] Many experiments on 720, but `init' fails !!
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<FontFamily><param>Courier New</param>It seems like I have very similar problems with 
a HP apollo series 700 (9000/730)


I have tried many builds, with home built cross 
compilers, downloaded cross compilers, images 
from CDs, downloaded lifs, roots on CDs, 
ramdisks and nfsroots.  booting using rbootd 
over the lan, and off the .iso cd.  I always 
seem to end up with a variation of the


<color><param>0100,0100,0100</param>break 0,0: pid=1 command='init'


problem.


Am keen to help (If I can, though just a lowly 
Sys Admin, not a kernel hack sadly)


P.S. i note that the boot only saw 1 cpu, even 
though the box is reported to be a 3 way, I 
presume this is as SMP is not compliled in by 
default?


here is capture from my console port


(c) Copyright.  Hewlett-Packard Company.  1991.

All rights reserved.


PDC ROM rev. 2.1

IODC ROM rev. 2.1

32 MB of memory configured and tested.



Searching for Potential Boot Devices.

To terminate search, press and hold the ESCAPE key.


Device Selection      Device Path              Device Type

----------------------------------------------------------------------------


P0                    scsi.6.0                 QUANTUM PD425S

P1                    scsi.5.0                 QUANTUM PD425S

P2                    scsi.4.0                 TOSHIBA CD-ROM XM-3701TA

P3                    scsi.2.0                 HP      2213A

P4                    lan.00001c-030853.0.0    burner




b)    Boot from specified device

s)    Search for bootable devices

a)    Enter Boot Administration mode

x)    Exit and continue boot sequence

?)    Help


Select from menu: b


Enter boot selection, (h)elp, or e(x)it: p4

 Trying lan.00001c-030853.0.0

Boot path initialized.

Attempting to load IPL.



Hard booted.

palo ipl root@hetfield Sun Apr  8 19:24:31 UTC 2001

0/vmlinux 2561817 bytes @ 0x6800

0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/ram initrd=0/ramdisk console=ttyS0'

0/ramdisk 870400 bytes @ 0x277f19

Kernel: partition 0 file /vmlinux

Ramdisk: partition 0 file /ramdisk

ELF32 executable

Entry 00100000 first 00100000 n 5

Segment 0 load 00100000 size 1469208 mediaptr 0x1000

Segment 1 load 00268000 size 181976 mediaptr 0x168000

Segment 2 load 00298000 size 222280 mediaptr 0x195000

Segment 3 load 002d0000 size 8192 mediaptr 0x1cc000

Segment 4 load 002fef68 size 74720 mediaptr 0x1cef68

Loading ramdisk 870400 bytes @ 01f1a000...

branching to kernel entry point 0x00100000

PDC Console Initialized

Linux version 2.4.0 (root@hetfield) (gcc version 2.97 20010203 (experimental)) #1 Sun Apr 8 19:16:06 UTC 2001

FP[0] enabled: Rev 3 Model 0

The 32-bit Kernel has started...

Determining PDC firmware type: Older Legacy Box

setup_cmdline(0x64d58,0x64d58,0x1f1a000,0x1fee800)

PALO command line: 'HOME=/ TERM=linux root=/dev/ram console=ttyS0'

PALO initrd 1f1a000-1fee800

model   00002020 00000481 00000000 00000000 3a238470 000011f4 00000004 0000000d 00000000

vers    00000003

CPUID   vers 0 rev 0

model   9000/730

Total Memory: 32 Mb

initrd: 11f1a000-11fee800

pagetable_init

On node 0 totalpages: 8192

zone(0): 8192 pages.

zone(1): 0 pages.

zone(2): 0 pages.

Searching for devices...

Found devices:

1. Coral SGC Graphics (10) at 0xf8000000, versions 0x4, 0x0, 0x77, 0x0, 0x0

2. Cobra Core BA (11) at 0xf082f000, versions 0x4, 0x0, 0x70, 0x0, 0x0

3. Cobra Core SCSI (10) at 0xf0825000, versions 0x4, 0x0, 0x71, 0x0, 0x0

4. Cobra Core LAN (802.3) (10) at 0xf0826000, versions 0x4, 0x0, 0x72, 0x0, 0x0

5. Cobra Core HIL (10) at 0xf0821000, versions 0x4, 0x0, 0x73, 0x0, 0x0

6. Cobra Core RS-232 (10) at 0xf0823000, versions 0x4, 0x0, 0x75, 0x0, 0x0

7. Cobra Core RS-232 (10) at 0xf0822000, versions 0x4, 0x0, 0x75, 0x0, 0x0

8. Cobra Core Centronics (10) at 0xf0824000, versions 0x4, 0x0, 0x74, 0x0, 0x0

9. Cobra EISA BA (11) at 0xfc000000, versions 0x4, 0x0, 0x76, 0x0, 0x0

10. King Cobra (730) (0) at 0xfffbe000, versions 0x202, 0x0, 0x4, 0x0, 0x81

11. Cobra (1) at 0xfffbf000, versions 0x13, 0x0, 0x9, 0x0, 0x0

That's a total of 11 devices.

CPU(s): 1 x PA7000 (PCX-S) at 66.000000 MHz

Kernel command line: HOME=/ TERM=linux root=/dev/ram console=ttyS0

Calibrating delay loop... 65.74 BogoMIPS

Memory: 29156k available

Dentry-cache hash table entries: 4096 (order: 3, 32768 bytes)

Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)

Page-cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 2048 (order: 2, 16384 bytes)

POSIX conformance testing by UNIFIX

ASP version 1 at 0xf0800000 found.

LED (ASP-style) display at f0800020 registered

Found HIL at 0xf0821000, IRQ 94

HIL: keyboard found at id 0

Found i82596 at 0xf0826000, IRQ 87

early initialization of device eth0 is deferred

Linux NET4.0 for Linux 2.4

Based upon Swansea University Computer Society NET3.039

Starting kswapd v1.8

pty: 256 Unix98 ptys configured

lp: driver loaded but no devices found

RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize

82596.c: MAC of HP700 LAN blindely read from the prom!

eth0: Couldn't get consistent shared memory

eth0: 82596 at 0xf0826000, 08 00 09 19 1B 34 IRQ 87.

82596.c $Revision: 1.17 $

RAMDISK: ext2 filesystem found at block 0

RAMDISK: Loading 850 blocks [1 disk] into ram disk... |/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/done.

Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled

ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A

ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A

Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)

parport_init_chip: enhanced parport-modes not supported.

parport0: PC-style at 0xf0824800, irq 88 [PCSPP]

lp0: using parport0 (interrupt-driven).

SCSI subsystem driver Revision: 1.00

sim700: Couldn't get consistent shared memory

sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1

scsi0: Revision 0x0

Post test1, istat 05, sstat0 00, dstat 84

sim700: WARNING IRQ probe failed, (returned 0)

scsi0: WARNING: target data areas are not dma coherent!

scsi0: test 1 completed ok.

scsi0 : LASI/Simple 53c7xx

  Vendor: HP        Model: 2213A             Rev: C023

  Type:   Direct-Access                      ANSI SCSI revision: 01 CCS

  Vendor: TOSHIBA   Model: CD-ROM XM-3701TA  Rev: 0236

  Type:   CD-ROM                             ANSI SCSI revision: 02

  Vendor: QUANTUM   Model: PD425S            Rev: 535A

  Type:   Direct-Access                      ANSI SCSI revision: 02

  Vendor: QUANTUM   Model: PD425S            Rev: 535A

  Type:   Direct-Access                      ANSI SCSI revision: 02

Detected scsi disk sda at scsi0, channel 0, id 2, lun 0

Detected scsi disk sdb at scsi0, channel 0, id 5, lun 0

Detected scsi disk sdc at scsi0, channel 0, id 6, lun 0

SCSI device sda: 1296512 512-byte hdwr sectors (664 MB)

Partition check:

 sda: unknown partition table

SCSI device sdb: 833150 512-byte hdwr sectors (427 MB)

 sdb: unknown partition table

SCSI device sdc: 833150 512-byte hdwr sectors (427 MB)

 sdc: unknown partition table

Detected scsi CD-ROM sr0 at scsi0, channel 0, id 4, lun 0

Uniform CD-ROM driver Revision: 3.12

linear personality registered

raid0 personality registered

raid1 personality registered

raid5 personality registered

raid5: measuring checksumming speed

   8regs     :    41.910 MB/sec

   8regs_prefetch:    53.721 MB/sec

   32regs    :    42.672 MB/sec

   32regs_prefetch:    54.483 MB/sec

raid5: using function: 32regs_prefetch (54.483 MB/sec)

md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27

md.c: sizeof(mdp_super_t) = 4096

NET4: Linux TCP/IP 1.0 for NET4.0

IP Protocols: ICMP, UDP, TCP

IP: routing cache hash table of 512 buckets, 4Kbytes

TCP: Hash tables configured (established 2048 bind 2048)

eth0: link ok.

Sending BOOTP requests.... OK

IP-Config: Got BOOTP answer from 0.0.0.0, my address is 192.168.1.201

NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.

VFS: Mounted root (ext2 filesystem).

break 0,0: pid=1 command='init'


     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI

PSW: 		00000000000001000000000000001111

r0-3	 	00000000 1028260c 102d0000 00000000

r4-7	 	102d0580 1028260c 102d0000 00000000

r8-11	 	102d0580 00000000 00000000 1014ab60

r12-15	00000000 00000000 00000000 00000000

r16-19	11ff8000 1028260c 102d0000 00000000

r20-23	102d0580 00000000 00000000 00000000

r24-27	faf00038 faf0004c 00000001 10139494

r28-31	00000000 00000000 faf00080 00002f13

sr0-3	 	1ff2d60 11eef0c0 00000000 0000ffff

sr4-7	 	0000001 00000001 00000001 00000001


IASQ: 	0000001 00000001 IAOQ: 00002f13 00002f17

IIR: 		000000    ISR: 00000001  IOR: 00000000


ORIG_R28: 40800000


break 0,0: pid=1 command='init'



     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI


PSW: 00000000000001000000000000001111


etc.....</color>

<nofill>
Thought for the Day:
   Fax is stranger than fiction. 





From - Thu Nov 08 21:17:10 2018
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From: Bdale Garbee <bdale@gag.com>
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Subject: Re: [parisc-linux] Running Apache on PA-RISC Linux
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workstations@poczta.onet.pl (Jacek Artymiak) writes:

> I'd like to run Apache/PHP/MySQL under PA-RISC Linux on my HP 712/100.  Is
> PA-RISC Linux stable enough to use it for that purpose or should I stick to
> HP-UX for now?

Checking the Debian wanna-build database for hppa, it appears that 

        apache is built and installed

        php3 and php4 failed to build, I haven't looked at why yet

        mysql failed to build because it at least needs config.sub/guess
        updated to versions that understand hppa

I haven't actually tried running apache yet, but I have no reason to expect
any problems.

Bdale





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From: Christoph Plattner <christoph.plattner@alcatel.at>
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Subject: Re: [parisc-linux] Many experiments on 720, but `init' fails !!
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Xref: news.gmane.org gmane.linux.ports.parisc:10719

This could be a simial problem, but in your case, another problem
is also likely.
You have a 9000/730, which really has *one* CPU. (There a three
chips, AFAIK, one is the CPU, one is a FPU coprocessor, and the
third often has to do with the cache). 
The only difference is the CPU core speed (66HMz 730, 50Mhz 720),
and perhaps the machines are equipped a little different.

"Our" CPUs are very old. So there must be a line added in 
the arch/parisc/kernel/trap.c file. In the handle_interruption()
you must add the line
	`case 18:'
where
	`case 15:'
	`case 26:'
is in the code, because these old CPUs use an older method of
"reporting" page faults, etc...

But as you have the output of the "break" routine, this seems
not to be the interrupt code.

In my case it is pid=9. I have not find out yet, which "kernel
thread" pid will get.

With friendly regards
	Christoph P.


Jeff Arthur wrote:
> 
> It seems like I have very similar problems with a HP apollo series 700 (9000/730)
> 
> I have tried many builds, with home built cross compilers, downloaded cross compilers, images from CDs, downloaded lifs, roots on CDs, ramdisks and nfsroots. booting using rbootd over the lan, and off the .iso cd. I always seem to end up with a variation of the
> 
> break 0,0: pid=1 command='init'
> 
> problem.
> 
> Am keen to help (If I can, though just a lowly Sys Admin, not a kernel hack sadly)
> 
> P.S. i note that the boot only saw 1 cpu, even though the box is reported to be a 3 way, I presume this is as SMP is not compliled in by default?
> 
> here is capture from my console port
> 
> (c) Copyright. Hewlett-Packard Company. 1991.
> All rights reserved.
> 
> PDC ROM rev. 2.1
> IODC ROM rev. 2.1
> 32 MB of memory configured and tested.
> 
> Searching for Potential Boot Devices.
> To terminate search, press and hold the ESCAPE key.
> 
> Device Selection Device Path Device Type
> ----------------------------------------------------------------------------
> 
> P0 scsi.6.0 QUANTUM PD425S
> P1 scsi.5.0 QUANTUM PD425S
> P2 scsi.4.0 TOSHIBA CD-ROM XM-3701TA
> P3 scsi.2.0 HP 2213A
> P4 lan.00001c-030853.0.0 burner
> 
> b) Boot from specified device
> s) Search for bootable devices
> a) Enter Boot Administration mode
> x) Exit and continue boot sequence
> ?) Help
> 
> Select from menu: b
> 
> Enter boot selection, (h)elp, or e(x)it: p4
> Trying lan.00001c-030853.0.0
> Boot path initialized.
> Attempting to load IPL.
> 
> Hard booted.
> palo ipl root@hetfield Sun Apr 8 19:24:31 UTC 2001
> 0/vmlinux 2561817 bytes @ 0x6800
> 0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/ram initrd=0/ramdisk console=ttyS0'
> 0/ramdisk 870400 bytes @ 0x277f19
> Kernel: partition 0 file /vmlinux
> Ramdisk: partition 0 file /ramdisk
> ELF32 executable
> Entry 00100000 first 00100000 n 5
> Segment 0 load 00100000 size 1469208 mediaptr 0x1000
> Segment 1 load 00268000 size 181976 mediaptr 0x168000
> Segment 2 load 00298000 size 222280 mediaptr 0x195000
> Segment 3 load 002d0000 size 8192 mediaptr 0x1cc000
> Segment 4 load 002fef68 size 74720 mediaptr 0x1cef68
> Loading ramdisk 870400 bytes @ 01f1a000...
> branching to kernel entry point 0x00100000
> PDC Console Initialized
> Linux version 2.4.0 (root@hetfield) (gcc version 2.97 20010203 (experimental)) #1 Sun Apr 8 19:16:06 UTC 2001
> FP[0] enabled: Rev 3 Model 0
> The 32-bit Kernel has started...
> Determining PDC firmware type: Older Legacy Box
> setup_cmdline(0x64d58,0x64d58,0x1f1a000,0x1fee800)
> PALO command line: 'HOME=/ TERM=linux root=/dev/ram console=ttyS0'
> PALO initrd 1f1a000-1fee800
> model 00002020 00000481 00000000 00000000 3a238470 000011f4 00000004 0000000d 00000000
> vers 00000003
> CPUID vers 0 rev 0
> model 9000/730
> Total Memory: 32 Mb
> initrd: 11f1a000-11fee800
> pagetable_init
> On node 0 totalpages: 8192
> zone(0): 8192 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> Searching for devices...
> Found devices:
> 1. Coral SGC Graphics (10) at 0xf8000000, versions 0x4, 0x0, 0x77, 0x0, 0x0
> 2. Cobra Core BA (11) at 0xf082f000, versions 0x4, 0x0, 0x70, 0x0, 0x0
> 3. Cobra Core SCSI (10) at 0xf0825000, versions 0x4, 0x0, 0x71, 0x0, 0x0
> 4. Cobra Core LAN (802.3) (10) at 0xf0826000, versions 0x4, 0x0, 0x72, 0x0, 0x0
> 5. Cobra Core HIL (10) at 0xf0821000, versions 0x4, 0x0, 0x73, 0x0, 0x0
> 6. Cobra Core RS-232 (10) at 0xf0823000, versions 0x4, 0x0, 0x75, 0x0, 0x0
> 7. Cobra Core RS-232 (10) at 0xf0822000, versions 0x4, 0x0, 0x75, 0x0, 0x0
> 8. Cobra Core Centronics (10) at 0xf0824000, versions 0x4, 0x0, 0x74, 0x0, 0x0
> 9. Cobra EISA BA (11) at 0xfc000000, versions 0x4, 0x0, 0x76, 0x0, 0x0
> 10. King Cobra (730) (0) at 0xfffbe000, versions 0x202, 0x0, 0x4, 0x0, 0x81
> 11. Cobra (1) at 0xfffbf000, versions 0x13, 0x0, 0x9, 0x0, 0x0
> That's a total of 11 devices.
> CPU(s): 1 x PA7000 (PCX-S) at 66.000000 MHz
> Kernel command line: HOME=/ TERM=linux root=/dev/ram console=ttyS0
> Calibrating delay loop... 65.74 BogoMIPS
> Memory: 29156k available
> Dentry-cache hash table entries: 4096 (order: 3, 32768 bytes)
> Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
> Page-cache hash table entries: 8192 (order: 3, 32768 bytes)
> Inode-cache hash table entries: 2048 (order: 2, 16384 bytes)
> POSIX conformance testing by UNIFIX
> ASP version 1 at 0xf0800000 found.
> LED (ASP-style) display at f0800020 registered
> Found HIL at 0xf0821000, IRQ 94
> HIL: keyboard found at id 0
> Found i82596 at 0xf0826000, IRQ 87
> early initialization of device eth0 is deferred
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Starting kswapd v1.8
> pty: 256 Unix98 ptys configured
> lp: driver loaded but no devices found
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> 82596.c: MAC of HP700 LAN blindely read from the prom!
> eth0: Couldn't get consistent shared memory
> eth0: 82596 at 0xf0826000, 08 00 09 19 1B 34 IRQ 87.
> 82596.c $Revision: 1.17 $
> RAMDISK: ext2 filesystem found at block 0
> RAMDISK: Loading 850 blocks [1 disk] into ram disk... |/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/done.
> Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
> ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
> ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
> Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
> parport_init_chip: enhanced parport-modes not supported.
> parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
> lp0: using parport0 (interrupt-driven).
> SCSI subsystem driver Revision: 1.00
> sim700: Couldn't get consistent shared memory
> sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
> scsi0: Revision 0x0
> Post test1, istat 05, sstat0 00, dstat 84
> sim700: WARNING IRQ probe failed, (returned 0)
> scsi0: WARNING: target data areas are not dma coherent!
> scsi0: test 1 completed ok.
> scsi0 : LASI/Simple 53c7xx
> Vendor: HP Model: 2213A Rev: C023
> Type: Direct-Access ANSI SCSI revision: 01 CCS
> Vendor: TOSHIBA Model: CD-ROM XM-3701TA Rev: 0236
> Type: CD-ROM ANSI SCSI revision: 02
> Vendor: QUANTUM Model: PD425S Rev: 535A
> Type: Direct-Access ANSI SCSI revision: 02
> Vendor: QUANTUM Model: PD425S Rev: 535A
> Type: Direct-Access ANSI SCSI revision: 02
> Detected scsi disk sda at scsi0, channel 0, id 2, lun 0
> Detected scsi disk sdb at scsi0, channel 0, id 5, lun 0
> Detected scsi disk sdc at scsi0, channel 0, id 6, lun 0
> SCSI device sda: 1296512 512-byte hdwr sectors (664 MB)
> Partition check:
> sda: unknown partition table
> SCSI device sdb: 833150 512-byte hdwr sectors (427 MB)
> sdb: unknown partition table
> SCSI device sdc: 833150 512-byte hdwr sectors (427 MB)
> sdc: unknown partition table
> Detected scsi CD-ROM sr0 at scsi0, channel 0, id 4, lun 0
> Uniform CD-ROM driver Revision: 3.12
> linear personality registered
> raid0 personality registered
> raid1 personality registered
> raid5 personality registered
> raid5: measuring checksumming speed
> 8regs : 41.910 MB/sec
> 8regs_prefetch: 53.721 MB/sec
> 32regs : 42.672 MB/sec
> 32regs_prefetch: 54.483 MB/sec
> raid5: using function: 32regs_prefetch (54.483 MB/sec)
> md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
> md.c: sizeof(mdp_super_t) = 4096
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 2048 bind 2048)
> eth0: link ok.
> Sending BOOTP requests.... OK
> IP-Config: Got BOOTP answer from 0.0.0.0, my address is 192.168.1.201
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> VFS: Mounted root (ext2 filesystem).
> break 0,0: pid=1 command='init'
> 
> YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001111
> r0-3 00000000 1028260c 102d0000 00000000
> r4-7 102d0580 1028260c 102d0000 00000000
> r8-11 102d0580 00000000 00000000 1014ab60
> r12-15 00000000 00000000 00000000 00000000
> r16-19 11ff8000 1028260c 102d0000 00000000
> r20-23 102d0580 00000000 00000000 00000000
> r24-27 faf00038 faf0004c 00000001 10139494
> r28-31 00000000 00000000 faf00080 00002f13
> sr0-3 1ff2d60 11eef0c0 00000000 0000ffff
> sr4-7 0000001 00000001 00000001 00000001
> 
> IASQ: 0000001 00000001 IAOQ: 00002f13 00002f17
> IIR: 000000 ISR: 00000001 IOR: 00000000
> 
> ORIG_R28: 40800000
> 
> break 0,0: pid=1 command='init'
> 
> YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> 
> PSW: 00000000000001000000000000001111
> 
> etc.....
> Thought for the Day: Fax is stranger than fiction.
> 
> _______________________________________________ parisc-linux mailing list parisc-linux@lists.parisc-linux.org http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955




From - Thu Nov 08 21:17:10 2018
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Subject: [parisc-linux] Re: Running Apache on PA-RISC Linux
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To: "'parisc-linux@lists.parisc-linux.org'" <parisc-linux@lists.parisc-linux.org>
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> I'd like to run Apache/PHP/MySQL under PA-RISC Linux on my HP 712/100. Is 
> PA-RISC Linux stable enough to use it for that purpose or should I stick
to 
> HP-UX for now? 

I have successful running Apache/PHP with OpenLDAP and PostgreSQL support on
my HP9000/D250.

Slapd (OpenLDAP server) is running on same machine.
Postgresql server running on Intel platform.



	P.S. sorry for my english...




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From: Matthieu Delahaye <delahaym@esiee.fr>
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Subject: Re: [parisc-linux] Running Apache on PA-RISC Linux
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To: parisc-linux <parisc-linux@lists.parisc-linux.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:10721

Bdale Garbee wrote:

> 
> Checking the Debian wanna-build database for hppa, it appears that
> 
>         apache is built and installed
> 
>         php3 and php4 failed to build, I haven't looked at why yet
> 
>         mysql failed to build because it at least needs config.sub/guess
>         updated to versions that understand hppa
> 

I tried to compile php4 for our website, and effectively it doesn't
work. It doesn't pass the ./configure.
If I remember well, it is connected to the fact that libutils doesn't
recognize the famous hppa-unknown-xxxx.
I think it was the same with mysql.

The only software problem we got in our http server is sometimes our 712
cannot handle swap and crash. 
But apache is not in fault. 
-- 
Matthieu Delahaye
ESIEE Team
http://mkhppa1.esiee.fr/en




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] rpc.lockd hangs  (was Re: portmap deb)
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	parisc-linux@lists.parisc-linux.org
To: Matthew Wilcox <matthew@wil.cx>
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Xref: news.gmane.org gmane.linux.ports.parisc:10722

On Sun, Apr 08, 2001 at 08:20:46PM +0100, Matthew Wilcox wrote:
> Actually I prefer (d) [hands up everyone who's surprised?  :-)]  I

Not me ;)

> don't see why we should implement syscall in assembler.  After all, that
> would be the third implementation :-)  Why not have something along the
> lines of:
> 
> int syscall(int nr, int arg1, int arg, int arg3, int arg4, int arg5, int arg6)
> {
> 	return INLINE_SYSCALL(nr, arg1, arg2, arg3, arg4, arg5, arg6);
> }
> 
> I don't have a copy of glibc to hand, so i'm not quite sure on the syntax
> of INLINE_SYSCALL.

This is nfs-utils code atm:


/* compatibility hack... */
#ifndef __NR_nfsctl
#define __NR_nfsctl     __NR_nfsservctl
#endif

int
nfsctl (int cmd, struct nfsctl_arg * argp, union nfsctl_res * resp)
{
  return syscall (__NR_nfsctl, cmd, argp, resp);
}


INLINE_SYSCALL wants a name, and an arg count, not a syscall number, eg:

  INLINE_SYSCALL(nfsservctl, 3, cmd, argp, resp);

so passing a syscall number in to syscall() doesn't work, and also
syscall() won't know how many arguments there are to pass on to
INLINE_SYSCALL.  Maybe we could just use '6' to get round that.

Maybe we duplicate INLINE_SYSCALL in sysdeps/unix/sysv/linux/hppa/sysdep.h,
call the new one INLINE_SYSCALL_NR, and replace 'SYS_ify(name)' with 'name'.
Then have

int syscall(int nr, int arg1, int arg, int arg3, int arg4, int arg5, int arg6)
{
      return INLINE_SYSCALL_NR(nr, arg1, arg2, arg3, arg4, arg5, arg6);
}

so long as there is no prototype of that visible to clash with use
in nfs-utils..

Richard





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Subject: Re: [parisc-linux] C180 Progress
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Xref: news.gmane.org gmane.linux.ports.parisc:10723

"Marc Eisenbarth" writes...

> What is the statis for a Linux install for an HP C180 Visualize? I tried to
> install 0.5, but it seems to hang and will not accept input from the
> keyboard after the cd boots up.

IIRC, the C180 requires fixes that are not in the kernel on the 0.5 iso. 
Either build a new kernel(and boot from an nfsroot root), or wait for a new 
iso.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: Re: [parisc-linux] rpc.lockd hangs  (was Re: portmap deb)
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Xref: news.gmane.org gmane.linux.ports.parisc:10724

On Mon, Apr 09, 2001 at 10:56:06AM +0100, Richard Hirst wrote:
> INLINE_SYSCALL wants a name, and an arg count, not a syscall number, eg:
> 
>   INLINE_SYSCALL(nfsservctl, 3, cmd, argp, resp);
> 
> so passing a syscall number in to syscall() doesn't work, and also
> syscall() won't know how many arguments there are to pass on to
> INLINE_SYSCALL.  Maybe we could just use '6' to get round that.

Yep, that's my thinking.

> Maybe we duplicate INLINE_SYSCALL in sysdeps/unix/sysv/linux/hppa/sysdep.h,
> call the new one INLINE_SYSCALL_NR, and replace 'SYS_ify(name)' with 'name'.
> Then have
> 
> int syscall(int nr, int arg1, int arg, int arg3, int arg4, int arg5, int arg6)
> {
>       return INLINE_SYSCALL_NR(nr, arg1, arg2, arg3, arg4, arg5, arg6);
> }

umm..

#define INLINE_SYSCALL(name, args...) INLINE_SYSCALL_NR(SYS_ify(name), args)

Otherwise, agreed.  This seems like a more robust approach than doing it
in assembler directly, and I don't believe it will be significantly less
efficient.  syscall() is clearly only used in exceptional cases anyway.

Since these packages have clearly never worked up till now, this seems
like an opportune point to change the sizes of these structures if that's
needed in order to get these syscalls implemented efficiently on 32 &
64 bit.

-- 
Revolutions do not require corporate support.




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] hppa-linux support needed for libgc5
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Cc: boehm@acm.org, whig@debian.org, taggart@carmen.fc.hp.com
To: parisc-linux@parisc-linux.org
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Xref: news.gmane.org gmane.linux.ports.parisc:10725

Hi HP_PA LINUX hackers,

The package libgc("a conservative garbage collector for C and C++") needs some 
hppa-linux specific changes. Right now it assumes that hppa means HP-UX. The 
upstream source is,

http://www.hpl.hp.com/personal/Hans_Boehm/gc/

and the debian package is named libgc5.

The build uses a program called if_mach to determine the arch/os and it does 
that by looking at the file "gcconfig.h".

In that file(version 5.3 of libgc) the lines 141-148, 979-1016, 1320-1325 are 
the ones we care about.  libgc5 is needed as a build/runtime dependency for 
several packages in Debian, most notably the gcc source package. I will hack 
it for now but we need to get real support added soon. Could somebody with 
more hppa experience take a look at it?

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






From - Thu Nov 08 21:17:11 2018
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Subject: RE: [parisc-linux] C180 Progress
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what is the status on the new iso? I do not have the resources to boot from
a nfsroot =(

-Marc

-----Original Message-----
From: Matt Taggart [mailto:taggart@carmen.fc.hp.com]
Sent: Monday, April 09, 2001 8:37 AM
To: Marc Eisenbarth
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] C180 Progress



"Marc Eisenbarth" writes...

> What is the statis for a Linux install for an HP C180 Visualize? I tried
to
> install 0.5, but it seems to hang and will not accept input from the
> keyboard after the cd boots up.

IIRC, the C180 requires fixes that are not in the kernel on the 0.5 iso.
Either build a new kernel(and boot from an nfsroot root), or wait for a new
iso.

--
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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From: "Boehm, Hans" <hans_boehm@hp.com>
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Subject: [parisc-linux] RE: hppa-linux support needed for libgc5
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If someone can get me an account on a Linux/PA machine, I'd be happy to see
if I can fix that in my current development version, which should make it
trivial to backport the right pieces to 5.3.

Is the Debian package normally built with thread support?  If so, is the
linuxthreads port to PA complete?

Are you trying to port the Java support in gcc?  If so, I believe we also
need a port of libffi to PA-RISC.  This is a more major project that would
be useful for both Linux/PA and HP/UX.  I'd be willing to help, but I don't
have the necessary PA experience.  (I did the libffi port for IA64.)

Hans

> -----Original Message-----
> From: Matt Taggart [mailto:taggart@carmen.fc.hp.com]
> Sent: Monday, April 09, 2001 9:32 AM
> To: parisc-linux@parisc-linux.org
> Cc: boehm@acm.org; whig@debian.org; taggart@carmen.fc.hp.com
> Subject: hppa-linux support needed for libgc5
> 
> 
> Hi HP_PA LINUX hackers,
> 
> The package libgc("a conservative garbage collector for C and 
> C++") needs some 
> hppa-linux specific changes. Right now it assumes that hppa 
> means HP-UX. The 
> upstream source is,
> 
> http://www.hpl.hp.com/personal/Hans_Boehm/gc/
> 
> and the debian package is named libgc5.
> 
> The build uses a program called if_mach to determine the 
> arch/os and it does 
> that by looking at the file "gcconfig.h".
> 
> In that file(version 5.3 of libgc) the lines 141-148, 
> 979-1016, 1320-1325 are 
> the ones we care about.  libgc5 is needed as a build/runtime 
> dependency for 
> several packages in Debian, most notably the gcc source 
> package. I will hack 
> it for now but we need to get real support added soon. Could 
> somebody with 
> more hppa experience take a look at it?
> 
> Thanks,
> 
> -- 
> Matt Taggart        Linux Development Lab
> taggart@fc.hp.com   HP Linux Systems Operation
> 
> 




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Subject: [parisc-linux] New cross compiler available - xc-20010409.tar.gz
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I have built a new cross-compiler tarball and placed it at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20010409.tar.gz

This is both i386-linux to hppa-linux(with glibc) and i386-linux to 
hppa64-linux(no glibc). Since the last one(March 7) there have been gcc and 
binutils merges and various fixes. As usual the cross-compiler lives in 
/opt/palinux and should be untar'ed from /.

Let me know if you have any problems.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: [parisc-linux] Building GDB - how exactly ?
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What are the correct steps to build a working GDB for 

1. HOST = i385-linux, TARGET = hppa-linux + gdbserver !
	(without server already success, but I am not shure, to have
	 done it correctly)

2. Native HPPA-LINUX gdb

I need to debug my `inti' problem

With friendly regards
	Christoph P.


-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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Subject: [parisc-linux] Problems with `init' on 720 !
Date: Mon, 09 Apr 2001 22:38:32 +0200
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After many experiments, I can boot the box (9000/720) with many tools,
bash, etc, (see other mails with
	[parisc-linux] Many experiments with 720, but `init' fails
) but I have troubles with init.

Error log:

VFS: Mounted root (nfs filesystem) readonly.
break 0,0: pid=9 command='init'
init[9]: Breakpoint 0

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 102de010 00000000 00000000
r4-7     00000000 00000000 00000000 00000000
r8-11    00000000 00000000 00000000 00000000
r12-15   00000000 00000000 00000040 1012544c
r16-19   13f085c0 13f08000 c804c804 00000001
r20-23   102efcc0 102efcc0 10022800 102efcc0
r24-27   0000002e 00001000 00000000 1024c010
r28-31   00000000 00000000 13f089c0 101312a0
sr0-3    00000000 00000000 00000000 00000001
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 00000000 00000004
 IIR: 00000000    ISR: 00000000  IOR: 00000000
ORIG_R28: 00000000

With friendly regards
	Christoph P.



-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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Subject: Re: [parisc-linux] Many experience done on 720, but `init' fails !!
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 <3AC973D3.F1453A4C@alcatel.at> <20010403223441.A11435@parcelfarce.linux.theplanet.co.uk> <3ACAC867.25327463@alcatel.at> <20010404180518.C11435@parcelfarce.linux.theplanet.co.uk>  <3AD09AFB.EBDFF975@dot.at>
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Christoph Plattner writes...

> SO I build sash, a also build a bash (shared and static !), I build
> fileutils, text-utils, shell-utils, etc, etc.....
> The system boots with bash and I can mount, run programs, etc....

Good.

> The I build "my own" startup stuff. A /sbin/init.d/xxx , etc/rc.d/xxx
> and so on. I also build a sysvinit-2.78 (and 2.77 before), but the
> `init' has it's problems. The error message is:

Make sure you don't have multiple init's. The kernel will look in several 
places and I don't remember what order it looks in. If you only have one then 
that's the only one it can find :)

Are you still having problems with the init in the base tarball? Is it 
important to you to build your own init? If it is reply privately and maybe I 
can help.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: Re: [parisc-linux] Many experience done on 720, but `init' fails !!
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Hello !

Matt Taggart wrote:
> 
> Christoph Plattner writes...
> 
> > SO I build sash, a also build a bash (shared and static !), I build
> > fileutils, text-utils, shell-utils, etc, etc.....
> > The system boots with bash and I can mount, run programs, etc....
> 
> Good.
> 
> > The I build "my own" startup stuff. A /sbin/init.d/xxx , etc/rc.d/xxx
> > and so on. I also build a sysvinit-2.78 (and 2.77 before), but the
> > `init' has it's problems. The error message is:
> 
> Make sure you don't have multiple init's. The kernel will look in several
> places and I don't remember what order it looks in. If you only have one then
> that's the only one it can find :)

I have only one init. But this is not a problem haveing more than one.
In the linux kernel it is very simply to have a "source look"
(init/main.c
bottom of the file). The kernel tries to exec /sbin/init. Only if the
exec fails
(cannot open, load, execute) then the next thing is tried. But if the
init has
a problem later on (faults, execptions, etc)the kernel does not try
other entries.

My problem is in another point. The `init' is also responsible to start
kernel
built-in processes (like kernel threads). They are AFAIK compiled in the
kernel,
the init process only starts and supervise (or only starts) them. With
the command
`ps' those processes are named with `[', `]', like the NFS daemon
`[nfsd]'.
Those procresses have very low pids (2,3,....). So I have to analyse the
code,
what pid=9 will become ? The break happens here !

> 
> Are you still having problems with the init in the base tarball? Is it
> important to you to build your own init? If it is reply privately and maybe I
> can help.

I read from this tarball in thr mailing list.
Is this a new root file system ?
How can I use it.
I have no debian experence, up to now I only had Redhat and formerly
Suse.
Do I need special knowledge ?

It is a hobby of mine, to build everything myself. I `dream' from a
source
directory, where I can say `make install' and a whole Linux is the
result,
of course for very small distribution of embeded Linux or firewall
stuff.
In my private sparetime, "small & embedded" Linux is my hobby and the HP
stuff and HP workstation is for me a perfect
cross-build-lerning-equipment.
>From intel cross to intel, you cannot get any feeling for that. No
resulting
errors, if I get the wrong compiler or tools.
Futher we use GNU cross compiling in the company from SPARC to intel.

With friendly regards
	Christoph  Plattner



> 
> --
> Matt Taggart        Linux Development Lab
> taggart@fc.hp.com   HP Linux Systems Operation

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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Xref: news.gmane.org gmane.linux.ports.parisc:10733

Bjorn Helgaas wrote:
> CONFIG_PARISC64 =>
> 	Only possible when CONFIG_PA20 selected
> 	Build 64-bit kernel by using $(CROSS_COMPILE) = hppa64-linux.

rhirst and I don't modify linux/Makefile for CROSS_COMPILE.
Now automagically based on the .config options selected.

> 	cpp predefines __LP64__.
> 
> So is there a reason for testing __LP64__ rather than CONFIG_PARISC64 in 
> the code?  There are a zillion tests for the former and none for the 
> latter, even though the latter seems more direct and obvious.

CONFIG_PARISC64 wasn't available when I wrote my code.
Most of my code uses __LP64__ though I think including linux./config.h
is better since when it changes, the .o's get rebuilt.

> It seems to me that __LP64__ is overloaded for several things.  
> Fundamentally, it is a property of the kernel, i.e., it is compiled to run 
> in wide mode. But we also use it to decide whether to use PDC PAT, which 
> seems like a slightly different question.  If you run a narrow kernel on a 
> C3000, the firmware still supports PDC PAT

I didn't think so. A narrow kernel won't have PDC PAT *calls*
 (eg do_inventory) in it.

>  (although I suppose we would have to do some work to call it in wide mode).

We considered doing this but decided it wasn't worth the effort.
Others are welcome to make this work if they have time to though...

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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"Gorbunov D.L." wrote:
> Dear sirs!
> Our office in 1996 buy HP9000(D-class) with hot-swap hdd, but now we =
> have some problem with software for this system.

Gorbunov,
You need to read the "fine print" before jumping in with both feet.
See http://www.parisc-linux.org/hardware/index.html and our FAQ
at http://www.parisc-linux.org/faq/index.html.

> I try to install PA-RISK Linux from bootable CDROM (I get iso-image via =
> your FTP-site).

Which version of the ISO image did you get?

> But after some minutes, I see next mesagge - Kernel Faults - code 15, =
> regs - c9fe8840 (addr =3D f6632087),
> and system stopped.=20
>   Could not you suggest, where I can find iso-image bootable CDROM with =
> PA-RISK Linux for HP9000 (d-class)?

We (HP) have not made any effort to support parisc-servers other than A180,
A500, and L2000. However, much of the technology in D and K-class systems 
is the same as what's in workstations of the same generation. Nearly all
of the older workstations are supported to some degree.

If you (or anyone else) has patches to support D or K-class machines, I'll
help review and integrate them since they are most likely going to be IO
related.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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After help form Christoph Plattner I resolved my init 
problems, and got a prompt!! 

(Thanks Christoph, I had the problem you 
described a couple of builds earlier so 
recreated the problem, applied your fix and it 
worked a treat)

however I now have a problem with SCSI, all 
devices are seen ok, have removed cdrom as I 
noted in some earlier posts that this could 
cause problems, but when creating filesystems 
the SCSI dies.

I have tried a couple of drives, boot log looks 
fine.  Any Suggestions or is this just down to 
lack of docs in this area, as I noted from posts 
back in Feb?

hpbox:~# mke2fs /dev/sda3
mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
71520 inodes, 142991 blocks
7149 blocks (5.00%) reserved for the super user
First data block=0
5 block groups
32768 blocks per group, 32768 fragments per group
14304 inodes per group
Superblock backups stored on blocks:
        32768, 98304

Writing inode tables: done
scsi0: Unable to abort command for target 2
scsi0: Unable to send Bus Device Reset for target 2
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 000b2038 (script[0x080e]), dsps = 000b2cde, target = 0
scsi0: Failing command for ID2
SCSI disk error : host 0 channel 0 id 2 lun 0 return code = 2
 I/O error: dev 08:03, sector 160
 I/O error: dev 08:03, sector 162
 I/O error: dev 08:03, sector 0
 I/O error: dev 08:03, sector 288
 I/O error: dev 08:03, sector 416
 I/O error: dev 08:03, sector 544...


... I/O error: dev 08:03, sector 1052022
 I/O error: dev 08:03, sector 1052150
Warning: could not erase block 0: Attempt to write block from filesystem resulte
 I/O error: dev 08:03, sector 2
d in short write I/O error: dev 08:03, sector 8

Writing superb I/O error: dev 08:03, sector 262144
locks and filesy I/O error: dev 08:03, sector 262152
stem accounting  I/O error: dev 08:03, sector 524288
information:  I/O error: dev 08:03, sector 786432
 I/O error: dev 08:03, sector 786440
 I/O error: dev 08:03, sector 1048576
done
 I/O error: dev 08:03, sector 2
 I/O error: dev 08:03, sector 8
 I/O error: dev 08:03, sector 262144
 I/O error: dev 08:03, sector 262152
 I/O error: dev 08:03, sector 786432
 I/O error: dev 08:03, sector 786440


Thought for the Day:
   Home is where you hang your @





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> I tried to compile php4 for our website, and effectively it doesn't
> work. It doesn't pass the ./configure.
> If I remember well, it is connected to the fact that libutils doesn't
> recognize the famous hppa-unknown-xxxx.
> I think it was the same with mysql.
>
> The only software problem we got in our http server is sometimes our 712
> cannot handle swap and crash.
> But apache is not in fault.

Thank you for sharing this information with me.  It looks like I will have
to stay with HP-UX for a while then.  It's a pity, because I was hoping to
run my new Web site on a Linux-powered 712/100.

Jacek


Jacek



-- 
 




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From: Alan Modra <alan@linuxcare.com.au>
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Subject: Re: [parisc-linux] Building GDB - how exactly ?
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On Mon, 9 Apr 2001, Christoph Plattner wrote:

> What are the correct steps to build a working GDB for 
> 
> 1. HOST = i385-linux, TARGET = hppa-linux + gdbserver !
> 	(without server already success, but I am not shure, to have
> 	 done it correctly)

I haven't been building gdb for remote debugging, so I'm not sure how it
will go.  Should work, I think.

> 2. Native HPPA-LINUX gdb

I use the following to build a native gdb using a cross compiler from
x86-linux

/src/parisc/gdb/configure --build=i686-linux --host=hppa-linux
--target=hppa-linux --prefix=/usr --disable-shared --disable-nls

and the following to build natively

/src/parisc/gdb/configure --prefix=/usr --build=hppa-linux
--host=hppa-linux --target=hppa-linux --disable-nls

It's critical that you have up to date kernel header files available from
/usr/include/linux and /usr/include/asm, **for a 32 bit kernel**
regardless of whether you're running a 32 bit or 64 bit kernel.  This will
probably change soon as the ptrace interface is likely to change.

-- 
Alan Modra





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Thank you very much !

I have especially problems with the gdbserver !
I need it.

With friendly regards
	Christoph Plattner


Alan Modra wrote:
> 
> On Mon, 9 Apr 2001, Christoph Plattner wrote:
> 
> > What are the correct steps to build a working GDB for
> >
> > 1. HOST = i385-linux, TARGET = hppa-linux + gdbserver !
> >       (without server already success, but I am not shure, to have
> >        done it correctly)
> 
> I haven't been building gdb for remote debugging, so I'm not sure how it
> will go.  Should work, I think.
> 
> > 2. Native HPPA-LINUX gdb
> 
> I use the following to build a native gdb using a cross compiler from
> x86-linux
> 
> /src/parisc/gdb/configure --build=i686-linux --host=hppa-linux
> --target=hppa-linux --prefix=/usr --disable-shared --disable-nls
> 
> and the following to build natively
> 
> /src/parisc/gdb/configure --prefix=/usr --build=hppa-linux
> --host=hppa-linux --target=hppa-linux --disable-nls
> 
> It's critical that you have up to date kernel header files available from
> /usr/include/linux and /usr/include/asm, **for a 32 bit kernel**
> regardless of whether you're running a 32 bit or 64 bit kernel.  This will
> probably change soon as the ptrace interface is likely to change.
> 
> --
> Alan Modra
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux


-----------------------------------------------------------------
private:        christoph.plattner@dot.at
company:        christoph.plattner@alcatel.at




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Xref: news.gmane.org gmane.linux.ports.parisc:10739

Hi folks:

What's the status of the support for the (E)ISA bus on the hppa port of
Linux, specifically to support the 735/99 workstation? I'd like to use an
ISA card which has linux/x86 support, and have noted that (apparently) the
EISA bus has support on my machine, but what does this mean with regards to
specific cards? If someone can give me a definite answer on this I'd really
appreciate it, as I'm sure others reading would also.

Does the fact that the EISA bus is supported mean that *any* (read: most)
card(s) with x86-linux drivers will work (assuming a driver recompile)? Or
is this a naive assumption?

Whether or not I use hppa-linux depends more or less on the answer to this
question.

Regards,
Matt van de Werken.






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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] 9000/730 booting but SCSI Problems (mke2fs)
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Xref: news.gmane.org gmane.linux.ports.parisc:10740

Hi Jeff,
  Looks like your scsi sub-system basically works, as you have presumably
managed to partition your disk with fdisk, and you say the disks are
detected ok on boot.  So, this doesn't look like the problem we have
with older machines and lack of documentation.  On those older machines
we don't even detect the disks.

First, can you send your boot messages so I can see what sort of machine
you have and want is on the scsi bus.

Then you should check scsi bus termination and maybe try a different
cable (unless you know the h/w works with some other OS).

You could try booting with "sim700=nodisc:0xff" on the command line to
prevent scsi disconnect/reselect cycles.

You could try some small scsi data transfers with 'dd' to see if it works
for simple things.

Richard


On Mon, Apr 09, 2001 at 11:54:02PM +0100, Jeff Arthur wrote:
> After help form Christoph Plattner I resolved my init 
> problems, and got a prompt!! 
> 
> (Thanks Christoph, I had the problem you 
> described a couple of builds earlier so 
> recreated the problem, applied your fix and it 
> worked a treat)
> 
> however I now have a problem with SCSI, all 
> devices are seen ok, have removed cdrom as I 
> noted in some earlier posts that this could 
> cause problems, but when creating filesystems 
> the SCSI dies.
> 
> I have tried a couple of drives, boot log looks 
> fine.  Any Suggestions or is this just down to 
> lack of docs in this area, as I noted from posts 
> back in Feb?
> 
> hpbox:~# mke2fs /dev/sda3
> mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
> Filesystem label=
> OS type: Linux
> Block size=4096 (log=2)
> Fragment size=4096 (log=2)
> 71520 inodes, 142991 blocks
> 7149 blocks (5.00%) reserved for the super user
> First data block=0
> 5 block groups
> 32768 blocks per group, 32768 fragments per group
> 14304 inodes per group
> Superblock backups stored on blocks:
>         32768, 98304
> 
> Writing inode tables: done
> scsi0: Unable to abort command for target 2
> scsi0: Unable to send Bus Device Reset for target 2
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
> scsi0: dsp = 000b2038 (script[0x080e]), dsps = 000b2cde, target = 0
> scsi0: Failing command for ID2
> SCSI disk error : host 0 channel 0 id 2 lun 0 return code = 2
>  I/O error: dev 08:03, sector 160
>  I/O error: dev 08:03, sector 162
>  I/O error: dev 08:03, sector 0
>  I/O error: dev 08:03, sector 288
>  I/O error: dev 08:03, sector 416
>  I/O error: dev 08:03, sector 544...
> 
> 
> ... I/O error: dev 08:03, sector 1052022
>  I/O error: dev 08:03, sector 1052150
> Warning: could not erase block 0: Attempt to write block from filesystem resulte
>  I/O error: dev 08:03, sector 2
> d in short write I/O error: dev 08:03, sector 8
> 
> Writing superb I/O error: dev 08:03, sector 262144
> locks and filesy I/O error: dev 08:03, sector 262152
> stem accounting  I/O error: dev 08:03, sector 524288
> information:  I/O error: dev 08:03, sector 786432
>  I/O error: dev 08:03, sector 786440
>  I/O error: dev 08:03, sector 1048576
> done
>  I/O error: dev 08:03, sector 2
>  I/O error: dev 08:03, sector 8
>  I/O error: dev 08:03, sector 262144
>  I/O error: dev 08:03, sector 262152
>  I/O error: dev 08:03, sector 786432
>  I/O error: dev 08:03, sector 786440
> 
> 
> Thought for the Day:
>    Home is where you hang your @
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Many experience done on 720, but `init' fails !!
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To: Christoph Plattner <christoph.plattner@dot.at>
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Xref: news.gmane.org gmane.linux.ports.parisc:10741

On Mon, Apr 09, 2001 at 11:12:47PM +0200, Christoph Plattner wrote:
> Those procresses have very low pids (2,3,....). So I have to analyse the
> code,
> what pid=9 will become ? The break happens here !

  PID TTY      STAT   TIME COMMAND
    1 ?        S      0:02 init
    2 ?        SW     0:00 [keventd]
    3 ?        SW     0:00 [kswapd]
    4 ?        SW     0:00 [kreclaimd]
    5 ?        SW     0:00 [bdflush]
    6 ?        SW     0:00 [kupdate]
    7 ?        SW     0:00 [scsi_eh_1]
   73 ?        S      0:00 /sbin/portmap
   80 ?        SW     0:00 [rpciod]
   81 ?        SW     0:00 [lockd]
  124 ?        S      0:00 /sbin/syslogd
  127 ?        S      0:00 /sbin/klogd
  134 ?        S      0:00 /usr/sbin/inetd
  144 ?        S      0:01 /usr/sbin/sshd
  148 ?        S      0:00 /usr/sbin/atd
  151 ?        S      0:00 /usr/sbin/cron
  154 ttyS0    S      0:00 /sbin/getty -L ttyS0 9600 vt100
  155 ?        S      0:00 in.telnetd: beast.home
  156 pts/0    S      0:00 -bash
  157 pts/0    R      0:00 ps ax

Looks like PID 9 has run and exited during startup.  This is a freshly
booted B180.

One thought, if you have module support or hotplug support turned on in
your kernel config, you should turn them off for the time being.  The
kernel might be trying to trigger a module load and failing.

Richard





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Xref: news.gmane.org gmane.linux.ports.parisc:10742

Hi Grant,

Some (cpu-) time has passed, so i was wondering when a 0.6 ISO image will be
available?
Any E.T.A. known, or are there blocking issues?

Hans.

> -----Original Message-----
> From:	Grant Grundler [SMTP:grundler@cup.hp.com]
> Sent:	Friday, January 26, 2001 2:59 AM
> To:	sanaya@gr.hp.com
> Cc:	HP Linux Email List
> Subject:	Re: [parisc-linux] Request 
> 
> "Sean Anaya" wrote:
> > Hi all,
> > 
> > I was wondering if it would be possible to get the latest workable CD
> image
> > (palinux-0.5.iso.gz) updated?
> 
> That's in progress but it's not clear when it will be ready.
> 
> > I really would like to install Linux on my
> > C180-XP machine, but that image doesn't support Cxxx machines according
> to
> > the readme, and I do not have access to another linux machine on which
> to
> > build/put together a bootable CD image.
> 
> Well, then you have to wait. :^(
> 
> grant
> 
> Grant Grundler
> Unix Systems Enablement Lab
> +1.408.447.7253
> 
> --------------------------------------------------------------------------
> -
> To unsubscribe: send e-mail to parisc-linux-request@thepuffingroup.com
> with
> `unsubscribe' as the subject.




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Subject: Re: [parisc-linux] rpc.lockd hangs  (was Re: portmap deb)
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Cc: Matt Taggart <taggart@carmen.fc.hp.com>, randolph@tausq.org,
	lamont@hp.com, parisc-linux@lists.parisc-linux.org
To: Matthew Wilcox <matthew@wil.cx>
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Xref: news.gmane.org gmane.linux.ports.parisc:10743

On Mon, Apr 09, 2001 at 03:21:25PM +0100, Matthew Wilcox wrote:
> On Mon, Apr 09, 2001 at 10:56:06AM +0100, Richard Hirst wrote:
> > INLINE_SYSCALL wants a name, and an arg count, not a syscall number, eg:
> > 
> >   INLINE_SYSCALL(nfsservctl, 3, cmd, argp, resp);
> > 
> > so passing a syscall number in to syscall() doesn't work, and also
> > syscall() won't know how many arguments there are to pass on to
> > INLINE_SYSCALL.  Maybe we could just use '6' to get round that.
> 
> Yep, that's my thinking.
> 
> > Maybe we duplicate INLINE_SYSCALL in sysdeps/unix/sysv/linux/hppa/sysdep.h,
> > call the new one INLINE_SYSCALL_NR, and replace 'SYS_ify(name)' with 'name'.
> > Then have
> > 
> > int syscall(int nr, int arg1, int arg, int arg3, int arg4, int arg5, int arg6)
> > {
> >       return INLINE_SYSCALL_NR(nr, arg1, arg2, arg3, arg4, arg5, arg6);

That would need a '6' as well:

	return INLINE_SYSCALL_NR(nr, 6, arg1, arg2, arg3, arg4, arg5, arg6)

> umm..
> 
> #define INLINE_SYSCALL(name, args...) INLINE_SYSCALL_NR(SYS_ify(name), args)

No, doesn't work, because INLINE_SYSCALL() does

                asm volatile(                                   \
                        "ble  0x100(%%sr2, %%r0)\n\t"   \
                        " ldi %1, %%r20"                        \
                        : "=r" (__res)                          \
                        : "i" (SYS_ify(name)) ASM_ARGS_##nr     \
                         );                                     \

while INLINE_SYSCALL_NR needs

                asm volatile(                                   \
                        "ble  0x100(%%sr2, %%r0)\n\t"   \
                        " copy %1, %%r20"                       \
                        : "=r" (__res)                          \
                        : "r" (sysnum) ASM_ARGS_##nr            \
                         );                                     \

note the ldi --> copy and "i" --> "r".

I think we need to duplicate INLINE_SYSCALL rather than define one in terms
of the other.

The next question then is where to put the 'C' version of syscall().  Other
archs have a syscall.S (as do we, but ours will now be empty).  For now I've
put in it sysdep.c, that lives in the same dir as syscall.S and sysdep.h,
where INLINE_SYSCALL is defined.  Is that acceptable do you think?
Or do I have to replace syscall.S with syscall.c (which will mean
understanding the build process rather better than I currently do)?

> Otherwise, agreed.  This seems like a more robust approach than doing it
> in assembler directly, and I don't believe it will be significantly less
> efficient.  syscall() is clearly only used in exceptional cases anyway.

OK, although other ports have syscall as asm in syscall.S.

> Since these packages have clearly never worked up till now, this seems
> like an opportune point to change the sizes of these structures if that's
> needed in order to get these syscalls implemented efficiently on 32 &
> 64 bit.

Good point.

Richard





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From: Ulrich Drepper <drepper@redhat.com>
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Subject: Re: [parisc-linux] rpc.lockd hangs  (was Re: portmap deb)
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Cc: Matthew Wilcox <matthew@wil.cx>,
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	lamont@hp.com, parisc-linux@lists.parisc-linux.org
To: Richard Hirst <rhirst@linuxcare.com>
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Richard Hirst <rhirst@linuxcare.com> writes:

> No, doesn't work, because INLINE_SYSCALL() does
> 
>                 asm volatile(                                   \
>                         "ble  0x100(%%sr2, %%r0)\n\t"   \
>                         " ldi %1, %%r20"                        \
>                         : "=r" (__res)                          \
>                         : "i" (SYS_ify(name)) ASM_ARGS_##nr     \
>                          );                                     \
> 
> while INLINE_SYSCALL_NR needs
> 
>                 asm volatile(                                   \
>                         "ble  0x100(%%sr2, %%r0)\n\t"   \
>                         " copy %1, %%r20"                       \
>                         : "=r" (__res)                          \
>                         : "r" (sysnum) ASM_ARGS_##nr            \
>                          );                                     \

Why should you need two macros?  The second one is not used on any
other architecture and therefore no non-machine specific code uses it.
Get rid of it.  If you only use it to implement syscall() do it right
and don't hide it in a macro.  Even though we have many macros this
does not mean this is the way code should always be written.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------




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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] rpc.lockd hangs  (was Re: portmap deb)
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On Tue, Apr 10, 2001 at 09:58:57AM -0700, Ulrich Drepper wrote:
> Why should you need two macros?

I think you're missing the context here, Ulrich.  I'd prefer not to have
multiple implementations of syscall.  This discussion was about how to
have only _one_ implementation in glibc, not two.  I'm not sure we have
a solution to that yet.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:17:12 2018
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From: Matthieu Delahaye <delahaym@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Pb with fcntl.c
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Hi all!

while my kernel was booting, I got this dump:

Kernel Fault: Code=26 regs=10038580 (Addr=00000008)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 00000002 101496ec 00000000
r4-7     00000000 00000000 faf00e08 00000000
r8-11    ffffffff faf006c8 00008250 00000002
r12-15   00009b2c 00009b2c 1029860c 102e4000
r16-19   00000000 102e4580 00000000 4014907a
r20-23   00000014 00000000 00000000 ffffffff
r24-27   00000000 faf00e28 00000000 1027e010
r28-31   00000000 00000000 100387c0 10119250
sr0-3    00000000 00000002 00000000 00000002
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101394cc 101394d0
 IIR: 0c701085    ISR: 00000000  IOR: 00000008
ORIG_R28: 0000000f


The incriminated instruction is in the code of fput():

00000000101394b0 <fput>:
    101394b0:   6b c2 3f d9     stw rp,-14(sp)
    101394b4:   6f c6 00 80     stw,ma r6,<(sp)
    101394b8:   6b c3 3f 99     stw r3,-34(sp)
    101394bc:   08 1a 02 43     copy r26,r3
    101394c0:   6b c5 3f 89     stw r5,-3c(sp)
    101394c4:   34 74 00 28     ldo 14(r3),r20
    101394c8:   6b c4 3f 91     stw r4,-38(sp)
    101394cc:   0c 70 10 85     ldw  8(sr0,r3),r5
    101394d0:   0c 78 10 86     ldw  c(sr0,r3),r6
    101394d4:   0c b0 10 84     ldw  8(sr0,r5),r4
    101394d8:   00 01 0e 76     rsm 1,r22
    101394dc:   0e 80 10 93     ldw  0(sr0,r20),r19
    [...]

Since r3 value is 0 and since r3 is a copy of r26, which 
is arg0 according to Documentation/parisc/register, I assume
that fput as been called with a null argument.

the address 101496ec is part of sys_fcntl():

00000000101496a0 <sys_fcntl>:
    101496a0:   6b c2 3f d9     stw rp,-14(sp)
    101496a4:   6f c6 00 80     stw,ma r6,<(sp)
    101496a8:   08 18 02 46     copy r24,r6
    101496ac:   6b c5 3f 89     stw r5,-3c(sp)
    101496b0:   08 1a 02 45     copy r26,r5
    101496b4:   6b c4 3f 91     stw r4,-38(sp)
    101496b8:   08 19 02 44     copy r25,r4
    101496bc:   e8 57 1e e5     b,l 10139634 <fget>,rp
    101496c0:   6b c3 3f 99     stw r3,-34(sp)
    101496c4:   34 03 3f ef     ldi -9,r3
    101496c8:   08 05 02 5a     copy r5,r26
    101496cc:   08 04 02 59     copy r4,r25
    101496d0:   c8 9c 20 28     movb,= ret0,r4,101496ec <sys_fcntl+0x4c>
    101496d4:   08 06 02 58     copy r6,r24
    101496d8:   e8 5f 1a e5     b,l 10149450 <do_fcntl>,rp
    101496dc:   08 04 02 57     copy r4,r23
    101496e0:   08 04 02 5a     copy r4,r26
    101496e4:   e8 57 1b 8d     b,l 101394b0 <fput>,rp
    101496e8:   08 1c 02 43     copy ret0,r3
    101496ec:   08 03 02 5c     copy r3,ret0
    101496f0:   4b c2 3f 59     ldw -54(sp),rp
    101496f4:   4b c5 3f 89     ldw -3c(sp),r5
    101496f8:   4b c4 3f 91     ldw -38(sp),r4
    101496fc:   4b c3 3f 99     ldw -34(sp),r3
    10149700:   e8 40 c0 00     bv r0(rp)
    10149704:   4f c6 3f 81     ldw,mb <(sp),r6

Here, before the call of fput, r4 is copied into r26.
But at the address 101496d0, if r4 is null, there is a branch
over the call of fput()... So fput() would never have been called with
a null argument.

Does anyone have a clue of what happened? Btw, is the file "register" up
to date?    


Regards,
-- 
Matthieu Delahaye
ESIEE Team
http://mkhppa1.esiee.fr/en




From - Thu Nov 08 21:17:12 2018
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From: Grant Grundler <grundler@cup.hp.com>
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"Witvliet, Hans" wrote:
> Hi Grant,
> 
> Some (cpu-) time has passed, so i was wondering when a 0.6 ISO image will be
> available?
> Any E.T.A. known, or are there blocking issues?

IMHO, the person best informed about this is probably Matt Taggart.
Matt recently posted a new NFS root (made from new debs) and I think
the ESIEE team signed up to make an ISO image from that.
So it shouldn't be much longer.

My understanding is this is yet another intermediate release.
We hope folks can use apt-get to upgrade from regular debian mirrors
in future as the bits stabilize. I hope someone else who understands
debian distribution process and hppa-linux issues better can reply as well.

Witvliet, Hans originally wrote:
> I really would like to install Linux on my
> C180-XP machine, but that image doesn't support Cxxx machines according
> to the readme.

FWIW, Ryan Bradetich almost has 64-bit kernel booting on his C200 (PA2.0 CPU).
I'm pretty sure 32-bit kernel/userspace work fine on the C-class now.
(based on what Ryan and others have reported). So watch the parisc-linux
mail closely for the v0.6 ISO image announcement.

grant

ps. "thepuffingroup.com" mail and website is deprecated. please use
    lists.parisc-linux.org or www.parisc-linux.org domain now.

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] pread/pwrite
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Could those who're having problems with pread/pwrite try the following patch?

Index: fs/read_write.c
===================================================================
RCS file: /home/cvs/parisc/linux/fs/read_write.c,v
retrieving revision 1.6
diff -u -p -r1.6 read_write.c
--- fs/read_write.c	2000/11/10 21:43:50	1.6
+++ fs/read_write.c	2001/04/10 20:21:01
@@ -315,8 +315,8 @@ bad_file:
    lseek back to original location.  They fail just like lseek does on
    non-seekable files.  */
 
-asmlinkage ssize_t sys_pread(unsigned int fd, char * buf,
-			     size_t count, loff_t pos)
+static inline
+ssize_t do_pread(unsigned int fd, char * buf, size_t count, loff_t pos)
 {
 	ssize_t ret;
 	struct file * file;
@@ -346,8 +346,8 @@ bad_file:
 	return ret;
 }
 
-asmlinkage ssize_t sys_pwrite(unsigned int fd, const char * buf,
-			      size_t count, loff_t pos)
+static inline
+ssize_t do_pwrite(unsigned int fd, const char * buf, size_t count, loff_t pos)
 {
 	ssize_t ret;
 	struct file * file;
@@ -377,3 +377,35 @@ out:
 bad_file:
 	return ret;
 }
+
+#if BITS_PER_LONG == 32
+#ifdef __BIG_ENDIAN
+#define LOFF_T(high, low) unsigned int high, unsigned int low
+#else
+#define LOFF_T(high, low) unsigned int low, unsigned int high
+#endif
+
+asmlinkage
+ssize_t sys_pread(unsigned int fd, char *buf, size_t count, LOFF_T(high, low))
+{
+	return do_pread(fd, buf, count, (loff_t)high << 32 | low);
+}
+
+ssize_t sys_pwrite(unsigned int fd, char *buf, size_t count, LOFF_T(high, low))
+{
+	return do_pwrite(fd, buf, count, (loff_t)high << 32 | low);
+}
+
+
+#else /* BITS_PER_LONG != 32 */
+asmlinkage
+ssize_t sys_pread(unsigned int fd, char *buf, size_t count, loff_t pos)
+{
+	return do_pread(fd, buf, count, pos);
+}
+
+ssize_t sys_pwrite(unsigned int fd, char *buf, size_t count, loff_t pos)
+{
+	return do_pwrite(fd, buf, count, pos);
+}
+#endif

-- 
Revolutions do not require corporate support.




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From: "van de Werken, Matthew (DEM, PH)" <M.Vandewerken@cat.csiro.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:10749

Hi folks:

I have a couple of HP735's, I would like to run Linux on these. However, I
want to know how to get the disk image onto the drive. I have a couple of
options, but my preferred one is to initially boot over the network.
However, I only have the FDDI network. Can I use a "standard" ISA network
card in the EISA slot? Can I use a boot ROM in this ISA network card? If I
can, where would I get the boot ROM image to put on said boot ROM?

Any help greatly appreciated.

Cheers,
Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - 4069
ph:  (07) 3327 4685     fax:  (07) 3327 4455
email:  m.vandewerken@cat.csiro.au (w) mvdw73@one.net.au (h)





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Hi Matthieu,

On Tue, Apr 10, 2001 at 08:11:12PM +0200, Matthieu Delahaye wrote:
> Hi all!
> 
> while my kernel was booting, I got this dump:
> ...
> Does anyone have a clue of what happened?

No, is it repeatable?  32 or 64 bit kernel?  What h/w?  What compiler?

I agree with your diagnosis; looks like r4 got corrupted somehow.

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] pread/pwrite
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Xref: news.gmane.org gmane.linux.ports.parisc:10751

Hi Willy,

> Could those who're having problems with pread/pwrite try the following patch?

  I don't see how this is supposed to work with a 32 bit userspace and 64
bit kernel.  Do we also need syscall wrappers for pread/pwrite, something
like this:

Index: arch/parisc/kernel/sys_parisc32.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/sys_parisc32.c,v
retrieving revision 1.4
diff -u -r1.4 sys_parisc32.c
--- sys_parisc32.c	2001/04/10 20:05:24	1.4
+++ sys_parisc32.c	2001/04/11 10:18:17
@@ -2727,3 +2727,19 @@
 	}
 	sys_fcntl(fd, cmd, arg);
 }
+
+
+asmlinkage int sys32_pread(int fd, void *buf, size_t count, unsigned int high, unsigned int low)
+{
+	extern asmlinkage ssize_t sys_pread(unsigned int, char *, size_t, loff_t);
+
+	return sys_pread(fd, buf, count, (loff_t)high << 32 | low);
+}
+
+asmlinkage int sys32_pwrite(int fd, void *buf, size_t count, unsigned int high, unsigned int low)
+{
+	extern asmlinkage ssize_t sys_pwrite(unsigned int, char *, size_t, loff_t);
+
+	return sys_pwrite(fd, buf, count, (loff_t)high << 32 | low);
+}
+
Index: arch/parisc/kernel/syscall.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/syscall.S,v
retrieving revision 1.60
diff -u -r1.60 syscall.S
--- syscall.S	2001/04/10 20:05:24	1.60
+++ syscall.S	2001/04/11 10:18:18
@@ -441,8 +441,8 @@
 	ENTRY_SAME(getitimer)	/* 105 */
 	ENTRY_SAME(capget)
 	ENTRY_SAME(capset)
-	ENTRY_SAME(pread)
-	ENTRY_SAME(pwrite)
+	ENTRY_DIFF(pread)
+	ENTRY_DIFF(pwrite)
 	ENTRY_SAME(getcwd)		/* 110 */
 	ENTRY_SAME(vhangup)
 	ENTRY_SAME(fstat64)





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Subject: Re: [parisc-linux] 9000/730 booting but SCSI Problems (mke2fs)
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On Mon, 9 Apr 2001, Jeff Arthur wrote:

> however I now have a problem with SCSI, all 
> devices are seen ok, have removed cdrom as I 
> noted in some earlier posts that this could 
> cause problems, but when creating filesystems 
> the SCSI dies.
> 
> I have tried a couple of drives, boot log looks 
> fine.  Any Suggestions or is this just down to 
> lack of docs in this area, as I noted from posts 
> back in Feb?
> 
> hpbox:~# mke2fs /dev/sda3
> mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
> Filesystem label=
> OS type: Linux
> Block size=4096 (log=2)
> Fragment size=4096 (log=2)
> 71520 inodes, 142991 blocks
> 7149 blocks (5.00%) reserved for the super user
> First data block=0
> 5 block groups
> 32768 blocks per group, 32768 fragments per group
> 14304 inodes per group
> Superblock backups stored on blocks:
>         32768, 98304
> 
> Writing inode tables: done
> scsi0: Unable to abort command for target 2
> scsi0: Unable to send Bus Device Reset for target 2
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
> scsi0: dsp = 000b2038 (script[0x080e]), dsps = 000b2cde, target = 0
> scsi0: Failing command for ID2
> SCSI disk error : host 0 channel 0 id 2 lun 0 return code = 2
>  I/O error: dev 08:03, sector 160
>  I/O error: dev 08:03, sector 162
>  I/O error: dev 08:03, sector 0
>  I/O error: dev 08:03, sector 288
>  I/O error: dev 08:03, sector 416
>  I/O error: dev 08:03, sector 544...
> 
> 
> ... I/O error: dev 08:03, sector 1052022
>  I/O error: dev 08:03, sector 1052150
> Warning: could not erase block 0: Attempt to write block from filesystem resulte
>  I/O error: dev 08:03, sector 2
> d in short write I/O error: dev 08:03, sector 8
> 
> Writing superb I/O error: dev 08:03, sector 262144
> locks and filesy I/O error: dev 08:03, sector 262152
> stem accounting  I/O error: dev 08:03, sector 524288
> information:  I/O error: dev 08:03, sector 786432
>  I/O error: dev 08:03, sector 786440
>  I/O error: dev 08:03, sector 1048576
> done
>  I/O error: dev 08:03, sector 2
>  I/O error: dev 08:03, sector 8
>  I/O error: dev 08:03, sector 262144
>  I/O error: dev 08:03, sector 262152
>  I/O error: dev 08:03, sector 786432
>  I/O error: dev 08:03, sector 786440

the same problem occurs on my HP9000/730 ...

the machine works normal (expect the rpc.xxx problem),
unless you use your scsi devices extensively (well, not really
extensively, just a "find", "mke2fs" or "ls -lR" or something like that).

greetings max





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From: Matthieu Delahaye <delahaym@esiee.fr>
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Well, it seems my xc was too old. I changed to a more recent
and this disappears.
Sorry for disagreements ;-)
-- 
Matthieu Delahaye
ESIEE Team
http://mkhppa1.esiee.fr/




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Subject: [parisc-linux] FB cleanups
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I'd like someone to test these out for me -- they compile but I'm monitorless
here.

 * Turn gsc_read/write[bwl] calls into read/write[bwl]
 * Remove unused functions memcpy_tohp, memcopy_fromhp from fbcon-sti.c
 * Delete gsc_memset_io()
 * Teach <video/fbcon.h> to use memset_io instead.
 * Make <video/fbcon.h> use read/write[bwl] instead of direct accesses
   unless the architecture specifies otherwise.

Index: drivers/video/fbcon-sti.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/video/fbcon-sti.c,v
retrieving revision 1.5
diff -u -p -r1.5 fbcon-sti.c
--- fbcon-sti.c	2001/03/02 00:54:55	1.5
+++ fbcon-sti.c	2001/04/11 19:59:13
@@ -70,40 +70,14 @@ memcpy_fromhp_tohp(void *dest, void *src
 	count += 3;
 	count &= ~3; /* XXX */
 
-	while(count) {
-		count --;
-		gsc_writel(~gsc_readl(s), d);
+	while (count--) {
+		writel(~readl(s), d);
 		d += 32*4;
 		s += 32*4;
 	}
 }
 
 static void
-memcpy_tohp(void *dest, void *src, int count)
-{
-	unsigned long d = (unsigned long) dest;
-	u32 *s = (u32 *)src;
-
-	count += 3;
-	count &= ~3; /* XXX */
-
-	d = ram2log(dest);
-
-	while(count) {
-		count--;
-		gsc_writel(*s++, d);
-		d += 32*4;
-	}
-}
-
-static void
-memcopy_fromhp(void *dest, void *src, int count)
-{
-	/* FIXME */
-	printk("uhm ...\n");
-}
-
-static void
 memset_tohp(void *dest, u32 word, int count)
 {
 	unsigned long d = ram2log(dest);
@@ -111,9 +85,8 @@ memset_tohp(void *dest, u32 word, int co
 	count += 3;
 	count &= ~3;
 
-	while(count) {
-		count--;
-		gsc_writel(word, d);
+	while (count--) {
+		writel(word, d);
 		d += 32;
 	}
 }
@@ -123,7 +96,7 @@ readb_hp(void *src)
 {
 	unsigned long s = ram2log(src);
 
-	return ~gsc_readb(s);
+	return ~readb(s);
 }
 
 static void
@@ -137,7 +110,7 @@ writeb_hp(u8 b, void *dst)
 		return;
 	}
 
-	gsc_writeb(b, d);
+	writeb(b, d);
 }
 
 static void
Index: include/asm-parisc/gsc.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/gsc.h,v
retrieving revision 1.9
diff -u -p -r1.9 gsc.h
--- gsc.h	2001/03/02 00:09:47	1.9
+++ gsc.h	2001/04/11 19:59:15
@@ -32,14 +32,6 @@ extern void _gsc_writeq(u64,void *);
 #define gsc_writel(v,a)	_gsc_writel((v),(void *)(a))
 #define gsc_writeq(v,a)	_gsc_writeq((v),(void *)(a))
 
-static __inline__ void *gsc_memset_io(void *s, int c, size_t n)
-{
-	while (n--) {
-		gsc_writeb(c,s++);
-	}
-	return NULL;
-}
-
 struct gsc_dev {
 	struct gsc_bus	*bus;		/* bus this device is on */
 	struct gsc_dev	*next;		/* chain of all devices */
Index: include/video/fbcon.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/video/fbcon.h,v
retrieving revision 1.6
diff -u -p -r1.6 fbcon.h
--- fbcon.h	2001/03/02 00:16:36	1.6
+++ fbcon.h	2001/04/11 19:59:52
@@ -206,16 +206,6 @@ extern int set_all_vcs(int fbidx, struct
 #define fb_writel sbus_writel
 #define fb_memset sbus_memset_io
 
-#elif defined(__hppa__)
-
-#define fb_readb gsc_readb
-#define fb_readw gsc_readw
-#define fb_readl gsc_readl
-#define fb_writeb gsc_writeb
-#define fb_writew gsc_writew
-#define fb_writel gsc_writel
-#define fb_memset gsc_memset_io
-
 #elif defined(__i386__) || defined(__alpha__)
 
 #define fb_readb __raw_readb
@@ -228,13 +218,13 @@ extern int set_all_vcs(int fbidx, struct
 
 #else
 
-#define fb_readb(addr) (*(volatile u8 *) (addr))
-#define fb_readw(addr) (*(volatile u16 *) (addr))
-#define fb_readl(addr) (*(volatile u32 *) (addr))
-#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
-#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
-#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
-#define fb_memset memset
+#define fb_readb(addr) readb(addr)
+#define fb_readw(addr) readw(addr) 
+#define fb_readl(addr) readl(addr) 
+#define fb_writeb(b,addr) writeb(b,addr) 
+#define fb_writew(b,addr) writew(b,addr) 
+#define fb_writel(b,addr) writel(b,addr) 
+#define fb_memset(addr, c, len) memset_io((unsigned long)addr, c, len)
 
 #endif
 

-- 
Revolutions do not require corporate support.




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>>>>> "Matthew" == Matthew Wilcox <matthew@wil.cx> writes:

Matthew> I'd like someone to test these out for me -- they compile but
Matthew> I'm monitorless here.

Matthew>  * Turn gsc_read/write[bwl] calls into read/write[bwl] *

Question, does this STI device appear on PCI/ISA cards?

Jes




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On Wed, Apr 11, 2001 at 10:30:09PM +0200, Jes Sorensen wrote:
> >>>>> "Matthew" == Matthew Wilcox <matthew@wil.cx> writes:
> 
> Matthew> I'd like someone to test these out for me -- they compile but
> Matthew> I'm monitorless here.
> 
> Matthew>  * Turn gsc_read/write[bwl] calls into read/write[bwl] *
> 
> Question, does this STI device appear on PCI/ISA cards?

STI isn't a device, it's an interface.  STI applies to GSC, EISA & PCI
cards.  The particular chip (Artist) the driver deals with currently is
only on the GSC bus.  But we don't need to have gsc_read/write functions;
they will all go away eventually, I suspect.

-- 
Revolutions do not require corporate support.




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>>>>> "Matthew" == Matthew Wilcox <matthew@wil.cx> writes:

Matthew> STI isn't a device, it's an interface.  STI applies to GSC,
Matthew> EISA & PCI cards.  The particular chip (Artist) the driver
Matthew> deals with currently is only on the GSC bus.  But we don't
Matthew> need to have gsc_read/write functions; they will all go away
Matthew> eventually, I suspect.

Point is that readb/writeb are *only* defined for PCI and PCI
look-alike devices, even for ISA you're supposed to use
isa_readb/isa_writeb

Jes




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On Wed, Apr 11, 2001 at 10:43:52PM +0200, Jes Sorensen wrote:
> Point is that readb/writeb are *only* defined for PCI and PCI
> look-alike devices, even for ISA you're supposed to use
> isa_readb/isa_writeb

No, you're wrong.  isa_* are due to go away in 2.5.  After you've
called ioremap(), you can call readb/writeb on the returned address.
You might want to refer to Documentation/IO-mapping.txt and/or
Documentation/DocBook/deviceiobook.* (only in Alan's tree right now).

-- 
Revolutions do not require corporate support.




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>>>>> "Matthew" == Matthew Wilcox <matthew@wil.cx> writes:

Matthew> On Wed, Apr 11, 2001 at 10:43:52PM +0200, Jes Sorensen wrote:
>> Point is that readb/writeb are *only* defined for PCI and PCI
>> look-alike devices, even for ISA you're supposed to use
>> isa_readb/isa_writeb

Matthew> No, you're wrong.  isa_* are due to go away in 2.5.  After
Matthew> you've called ioremap(), you can call readb/writeb on the
Matthew> returned address.  You might want to refer to
Matthew> Documentation/IO-mapping.txt and/or
Matthew> Documentation/DocBook/deviceiobook.* (only in Alan's tree
Matthew> right now).

Then Linus changed his mind. You are still *only* supposed to use
readb/writeb on PCI (and possible ISA) on PCI like devices.

Jes




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> Then Linus changed his mind. You are still *only* supposed to use
> readb/writeb on PCI (and possible ISA) on PCI like devices.

ISA is a PCI like device, its a wacky slow motion PCI bridge with no 
configuration space ;).





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On Thu, Apr 12, 2001 at 12:56:01AM +0200, Jes Sorensen wrote:
> Then Linus changed his mind. You are still *only* supposed to use
> readb/writeb on PCI (and possible ISA) on PCI like devices.

I've heard this before.  But no-one ever came up with an example of what
_was_ `PCI-like'.  Since right now our writeb is #defined to gsc_writeb,
that leads me to believe GSC is sufficiently PCI-like.

-- 
Revolutions do not require corporate support.




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>>>>> "Alan" == Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

>> Then Linus changed his mind. You are still *only* supposed to use
>> readb/writeb on PCI (and possible ISA) on PCI like devices.

Alan> ISA is a PCI like device, its a wacky slow motion PCI bridge
Alan> with no configuration space ;).

True, but is GSC sufficiently similar? (note, I don't have intimate
knowledge about GSC).

Jes




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From: buffalo bill <buffalo@uranus.solar-system.the7lg.de>
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Subject: [parisc-linux] 710 SCSI & LAN problems
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Hi !
I've tried to get my 710 running with parisc linux.
I know there are problems with SCSI and LAN, so tried to find out.
The drivers both fail to call "pci_alloc_consistent()" and use memory from
__get_free_pages() instead. 

Could it be that the problem is related to this ?

Regards Heiko Jakob




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After updating the kernel on my C3000 today it now hangs on boot at,

led_init: chassis info: model=0 (LCD), lcd_width=16, cmd_delay=40, actcnt=32, 
m2led_init: min_cmd_delay = 40 uS
LCD display at f0190000,f0190001 registered
Searching for devices...


I turned off CONFIG_CHASSIS_LCD_LED in my config and then it boots fine.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 710 SCSI & LAN problems
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To: buffalo bill <buffalo@uranus.solar-system.the7lg.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:10765

On Thu, Apr 12, 2001 at 11:04:42PM +0200, buffalo bill wrote:
> Hi !
> I've tried to get my 710 running with parisc linux.
> I know there are problems with SCSI and LAN, so tried to find out.
> The drivers both fail to call "pci_alloc_consistent()" and use memory from
> __get_free_pages() instead. 
> 
> Could it be that the problem is related to this ?

No, that is expected behaviour on older systems with non-consistent
memory.  The problem appears to be with interrupt routing from the
scsi and lan chips to the cpu, and we don't have the documentation to
resolve that at the moment.

Richard





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From: buffalo bill <buffalo@uranus.solar-system.the7lg.de>
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Subject: Re: [parisc-linux] 710 SCSI & LAN problems
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> No, that is expected behaviour on older systems with non-consistent
> memory.  The problem appears to be with interrupt routing from the
> scsi and lan chips to the cpu, and we don't have the documentation to
> resolve that at the moment.
>
> Richard

Thank you for your answer.

I almost forgot to say: HIL is also broken on the 710.
I guess there is nothing recently working on the 710 that needs to handle 
with interrupts.

Could you tell me on which chip is the interrupt handling done ?
Is there something like a APIC ?

Heiko




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] FB cleanups
Date: Fri, 13 Apr 2001 01:02:15 -0600
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To: Jes Sorensen <jes@linuxcare.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:10767

Jes Sorensen wrote:
> Then Linus changed his mind. You are still *only* supposed to use
> readb/writeb on PCI (and possible ISA) on PCI like devices.

Jes,
AFAIK, STI devices will all be memory mapped devices.
readb/writeb will do the right thing since GSC is "PCI-like"
in this regard.

BTW, I'm not aware of any HP EISA graphics devices - only GSC devices 
with an EISA form-factor. So the answer is GSC and PCI device.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Alan Cox wrote:
> > Then Linus changed his mind. You are still *only* supposed to use
> > readb/writeb on PCI (and possible ISA) on PCI like devices.
> 
> ISA is a PCI like device, its a wacky slow motion PCI bridge with no 
> configuration space ;).

And no memory mapped I/O. Just I/O port space afaik.

grant




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From: "Matthew van de Werken" <mvdw73@one.net.au>
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Subject: [parisc-linux] Booting 735/99
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Hi folks:

I have a 735/99, onto which I'd like to install hppa-linux. However, I don't
have any of the usual methods of installing software (I have no bootable
CD-ROM, no tape, no network (without linux - chicken and egg problem).

Hwever, I *do* have a SCSI disk and a linux-x86 box onto which I can mount
this disk temporarily. What I'd like to be able to do is to dump a disk
image onto this disk, then transfer it to the 735, and boot from there. Is
this possible? Is there a disk image somewhere I can use for this?

Alternatively, can I build a bootable disk manually on the SCSI disk from
the x86 box? If I do this, what do I need to do? I tried to do the
instructions on the "Installing PA-RISC Linux" page, however I couldn't
mount the "f0" type partition (for obvious reasons), even if I had known
what to put there once I had.

Any help greatly appreciated at this stage,

Cheers,
Matt van de Werken.






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> > ISA is a PCI like device, its a wacky slow motion PCI bridge with no 
> > configuration space ;).
> 
> And no memory mapped I/O. Just I/O port space afaik.

ISA bus has MMIO, including busmastering. 





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From: Paul Bame <bame@fc.hp.com>
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Subject: [parisc-linux] floating point
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Yesterday I committed a bunch of floating-point stuff, so if you have
a floating-point app (SETI?) which was failing before, grab a new
set of kernel sources and give it a try.

	-P




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Matthew van de Werken said:
> I have a 735/99, onto which I'd like to install hppa-linux. However, I don't
> have any of the usual methods of installing software (I have no bootable
> CD-ROM, no tape, no network (without linux - chicken and egg problem).
> 
> Hwever, I *do* have a SCSI disk and a linux-x86 box onto which I can mount
> this disk temporarily. What I'd like to be able to do is to dump a disk
> image onto this disk, then transfer it to the 735, and boot from there. Is
> this possible? Is there a disk image somewhere I can use for this?

By "no network" do you mean the 735 doesn't have a network interface?
Or it does, but there's no network for you to connect it to?

If you're able to move that i386 Linux box to where the 735 is, or
vice-versa, so that you can connect them via Ethernet, then that would
likely be the easiest option.  Then with a bootp server (or a dhcpd that
can do bootp, eg the ISC dhcp server) on the Linux box you can serve the
735 a kernel to boot from and an NFS filesystem to mount.

As far as making that SCSI disk bootable to the HP, I have no idea if
this would work but you could try taking the current (out-of-date) CD
image from the FTP site and just writing it to the SCSI disk with dd.
I don't think a partition table written on the i386 would be readable by
the HP box though.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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>>>>> "Matthew" == Matthew Wilcox <matthew@wil.cx> writes:

Matthew> On Thu, Apr 12, 2001 at 12:56:01AM +0200, Jes Sorensen wrote:
>> Then Linus changed his mind. You are still *only* supposed to use
>> readb/writeb on PCI (and possible ISA) on PCI like devices.

Matthew> I've heard this before.  But no-one ever came up with an
Matthew> example of what _was_ `PCI-like'.  Since right now our writeb
Matthew> is #defined to gsc_writeb, that leads me to believe GSC is
Matthew> sufficiently PCI-like.

Well time to go study the bus behaviors and compare them then. How
does gsc behave wrt cache coherency, read-around-write, write ordering
etc etc.

Using writeb on a gsc is misleading everybody else who reads the code
into believing that it's a PCI device.

Jes




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>>>>> "Grant" == Grant Grundler <grundler@puffin.external.hp.com> writes:

Grant> Jes Sorensen wrote:
>> Then Linus changed his mind. You are still *only* supposed to use
>> readb/writeb on PCI (and possible ISA) on PCI like devices.

Grant> Jes, AFAIK, STI devices will all be memory mapped devices.
Grant> readb/writeb will do the right thing since GSC is "PCI-like" in
Grant> this regard.

I still don't like it as it is misleading.

Jes




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"Matthew van de Werken" wrote:
> Is this possible? Is there a disk image somewhere I can use for this?

You should be able to dump the ISO to disk and boot that.
The only problem is to convince everyone to use the disk instead
of CDROM /dev special device names. I think one only has
to interactively change the "Root" parameter but haven't
tried it recently.


> Alternatively, can I build a bootable disk manually on the SCSI disk from
> the x86 box? If I do this, what do I need to do? I tried to do the
> instructions on the "Installing PA-RISC Linux" page, however I couldn't
> mount the "f0" type partition (for obvious reasons), even if I had known
> what to put there once I had.

The f0 partition is raw data and not a file system.
cvs checkout the linux and palo repositories from your x86 and
you can build an XC palo which can talk to your disk.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Alan Cox wrote:
> ISA bus has MMIO, including busmastering. 

really? ok.  I thought the 8237A (DMA chip) on pc's provided the
DMA capability. I didn't think it wasn't inherent to the ISA bus.
But it's been so long (late 80's) since I've seriously mucked with
ISA devices.

ta,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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> Well time to go study the bus behaviors and compare them then. How
> does gsc behave wrt cache coherency, read-around-write, write ordering
> etc etc.

And ISA is noticable for the fact it doesnt behave quite like PCI. You use
readb/readw/readl on ISA.

> Using writeb on a gsc is misleading everybody else who reads the code
> into believing that it's a PCI device.

Rubbish.

Alan





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> really? ok.  I thought the 8237A (DMA chip) on pc's provided the
> DMA capability. I didn't think it wasn't inherent to the ISA bus.

It provides some DMA capabilities. Cards can also drive DMA themselves, and
for anything > 2Mhz basically have to.





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Subject: [parisc-linux] xfree86 build problem
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hi folks,

The xfree86 build dies with the following errors:
...
making all in lib/GL/glu/libutil...
make[3]: Entering directory `/home/src/xfree86-4.0.2/build-tree/xc/lib/GL/glu/libutil'
make[3]: Nothing to be done for `all'.
make[3]: Leaving directory `/home/src/xfree86-4.0.2/build-tree/xc/lib/GL/glu/libutil'
rm -f libGLU.so.1.3~
+ cd .
+ c++ -o ./libGLU.so.1.3~ -shared -Wl,--whole-archive -Wl,-soname,libGLU.so.1 libutil/libutil.a libtess/libtess.a libnurbs/internals/libinternals.a libnurbs/interface/libinterface.a libnurbs/nurbtess/libnurbtess.a -Wl,--no-whole-archive
/usr/bin/ld: error.o: relocation R_PARISC_DPREL21L can not be used when making a shared object; recompile with -fPIC
libutil/libutil.a(error.o): could not read symbols: Bad value
collect2: ld returned 1 exit status
+ rm -f libGLU.so.1
+ ln -s libGLU.so.1.3 libGLU.so.1
+ rm -f ../../../exports/lib/libGLU.so.1
+ cd ../../../exports/lib
+ ln -s ../../lib/GL/glu/libGLU.so.1 .
rm -f libGLU.so.1.3
mv -f libGLU.so.1.3~ libGLU.so.1.3
mv: cannot stat `libGLU.so.1.3~': No such file or directory
make[2]: *** [libGLU.so.1.3] Error 1
make[2]: Leaving directory `/home/src/xfree86-4.0.2/build-tree/xc/lib/GL/glu'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/home/src/xfree86-4.0.2/build-tree/xc/lib/GL'
make: *** [all] Error 2

a500:/usr/src/xfree86-4.0.2/build-tree/xc/lib# file GL/glu/libutil/error.o
GL/glu/libutil/error.o: ELF 32-bit MSB relocatable, PA-RISC, version 1, not stripped


1) error.o was built with:
gcc -c -O2 -g -ansi -pedantic -Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wnested-externs  -I../include    -I../../../../include   -I../../../../include/GL  -I../../../.. -I../../../../exports/include  -Dlinux  -D_POSIX_SOURCE -D_POSIX_C_SOURCE=2 -D_BSD_SOURCE -D_SVID_SOURCE -D_GNU_SOURCE -DX_LOCALE   -DFUNCPROTO=15 -DNARROWPROTO   -DNDEBUG  error.c
   Is the -fPIC missing here?
   If so, why does "file" say it's relocatable?

   I rebuilt error.o and glue.o by hand with -fPIC, rebuilt the libutil.a,
   and then the build proceeded (until it hit the next problem).

2) c++ isn't returning the error reported by collect2
   Fortunately the build soon dies since the expected product
   doesn't exist. Known problem?


grant




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From: Ryan Bradetich <rbrad@beavis.ybsoft.com>
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Subject: Re: [parisc-linux] Booting 735/99
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Xref: news.gmane.org gmane.linux.ports.parisc:10780

I believe the 735 requires rbootd.  I know debian has a package for this
and I think a redhat rbootd package can be found at:

ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/rbootd-2.0-2.tar.gz

- Ryan

On Fri, Apr 13, 2001 at 11:31:54PM +0800, Andrew Shugg wrote:
> Matthew van de Werken said:
> > I have a 735/99, onto which I'd like to install hppa-linux. However, I don't
> > have any of the usual methods of installing software (I have no bootable
> > CD-ROM, no tape, no network (without linux - chicken and egg problem).
> > 
> > Hwever, I *do* have a SCSI disk and a linux-x86 box onto which I can mount
> > this disk temporarily. What I'd like to be able to do is to dump a disk
> > image onto this disk, then transfer it to the 735, and boot from there. Is
> > this possible? Is there a disk image somewhere I can use for this?
> 
> By "no network" do you mean the 735 doesn't have a network interface?
> Or it does, but there's no network for you to connect it to?
> 
> If you're able to move that i386 Linux box to where the 735 is, or
> vice-versa, so that you can connect them via Ethernet, then that would
> likely be the easiest option.  Then with a bootp server (or a dhcpd that
> can do bootp, eg the ISC dhcp server) on the Linux box you can serve the
> 735 a kernel to boot from and an NFS filesystem to mount.
> 
> As far as making that SCSI disk bootable to the HP, I have no idea if
> this would work but you could try taking the current (out-of-date) CD
> image from the FTP site and just writing it to the SCSI disk with dd.
> I don't think a partition table written on the i386 would be readable by
> the HP box though.
> 
> Andrew.
> 
> --
> Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/
> 
> "Just remember, Mr Fawlty, there's always someone worse off than yourself."
> "Is there?  Well I'd like to meet him.  I could do with a good laugh."
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 

-- 




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Hello parisc-linux hackers,

A bug (#105) was discovered today reguarding cpio'ing an iso image from
the cdrom to the disk.  This was a stupid error and I have a quick patch
for this.  But this leads to my next question....  I am getting a kernel
panic when perfoming the cpio from the cdrom to the disk.  I am trying
to verify if their in another problem with the ccio code, or if this is
a problem witht the scsi driver itself.  Can someone else try it on a
non-ccio machine and see if fails for them also.  [Note:  The cdrom
content should not matter, in this case I have an i386 debian disk I 
was cpio'ing over because it was handy.]

Disk to disk transfers seem to work fine under ccio...

Thanks,

- Ryan


vega:/tmp# mount /dev/sr0 /cdrom
ISO 9660 Extensions: RRIP_1991A
vega:/tmp# find /cdrom | cpio -pm /tmp   
scsi1: Unexpected Illegal Instruction, script[0002]
scsi1: script[fffffffe]: 00000000 00000000 60000200 00000000 7c1bef00 00000000 41040000 00182448
scsi1: Failed to handle interrupt.  Failing commands and resetting SCSI bus and chip
scsi1: istat = 00, sstat0 = 00, sstat1 = 00, dstat = 00
scsi1: dsp = 00182008 (script[0x0802]), dsps = 7b255263, target = 0
scsi1: Failing command for ID2



Dumping Stack from 1027e000 to 1027e2c0:
e000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e020 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e040 00000000 00000000 00000000 0028a000 00000000 00000000 00000000 00000000
e060 00000000 00000000 00000000 0010c830 00000000 00000000 00000000 00000000
e080 00000008 fffb1000 0010c830 00008000 00291000 00282000 0010c8a8 00105024
e0a0 00282000 00008000 fffa0000 e0000000 20530a40 0000006c 00000002 0000001f
e0c0 20530a40 102fc010 1012a4a0 ffd05800 00000060 00000000 00000000 00000060
e0e0 0027e548 00000003 ffd05800 f0102400 00000000 ffd05800 1027e2c0 00000007
e100 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e120 00000001 fe4917e0 00000002 1014aee0 ef56b2f6 f9bf8075 dedbd0be f309b5b9
e140 10fec000 3fc900c0 102dc000 00000000 10290064 102f9010 102fc010 10276010
e160 102f8810 00000001 10294010 1013948c 102f8810 102d9d08 102d9d08 102d9c80
e180 3fc99000 1029060c 00000000 00000002 00000000 102a46c0 0004000e 0000004d
e1a0 102f9010 3fc99000 1029060c 1014adc4 cccccccd 00000030 00000000 cccccccd
e1c0 00000001 00000004 3fe00000 00000000 412e8480 00000000 3fc9d140 0000004d
e1e0 ffffff05 102fc010 00000001 101395f4 3fccf400 1028ecc8 00000000 00000000
e200 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e220 00000000 00000000 0010c754 0010c758 ffffffff 00000000 00000000 00000000
e240 00000000 00000008 081a025c 10240041 4c130d44 00000000 00000000 00000000
e260 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e280 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e2a0 00000000 00000000 00000000 10106744 00000000 00000000 00000000 00000000

Unexpected Interruption!: Code=0 regs=1027e080 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000000000000000000001000
r0-3     00000000 fffb1000 0010c830 00008000
r4-7     00291000 00282000 0010c8a8 00105024
r8-11    00282000 00008000 fffa0000 e0000000
r12-15   20530a40 0000006c 00000002 0000001f
r16-19   20530a40 102fc010 1012a4a0 ffd05800
r20-23   00000060 00000000 00000000 00000060
r24-27   0027e548 00000003 ffd05800 f0102400
r28-31   00000000 ffd05800 1027e2c0 00000007
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 0010c754 0010c758
 IIR: 081a025c    ISR: 10240041  IOR: 4c130d44
ORIG_R28: 00000000


-- 




From - Thu Nov 08 21:17:15 2018
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To: Grant Grundler <grundler@puffin.external.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:10782

On Fri, Apr 13, 2001 at 04:21:16PM -0600, Grant Grundler wrote:
> 1) error.o was built with:
> gcc -c -O2 -g -ansi -pedantic -Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wnested-externs  -I../include    -I../../../../include   -I../../../../include/GL  -I../../../.. -I../../../../exports/include  -Dlinux  -D_POSIX_SOURCE -D_POSIX_C_SOURCE=2 -D_BSD_SOURCE -D_SVID_SOURCE -D_GNU_SOURCE -DX_LOCALE   -DFUNCPROTO=15 -DNARROWPROTO   -DNDEBUG  error.c
>    Is the -fPIC missing here?

Yes (or error.o shouldn't be included in the shared lib)

>    If so, why does "file" say it's relocatable?

Because it is. :)  Relocatable files don't have to be PIC.

> 2) c++ isn't returning the error reported by collect2
>    Fortunately the build soon dies since the expected product
>    doesn't exist. Known problem?

Are you sure about this statement?  It might just be "make" (the presense
of those `+'s is ringing bells with me but I don't recall the exact
signifigance.)

Alan





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From: Christoph Plattner <christoph.plattner@dot.at>
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Subject: [parisc-linux] Success: My E55 (9000/856) runs bash-2.04 via PDC
Date: Sat, 14 Apr 2001 01:16:44 +0200
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Hello PA-RISC community.

Again and again I want to have my E55 running Linux, but the problem
is the serial lines (8-port MDP) is a proprietary interface. So I needed
a solution. 

I had the idea to use the PDC console, months ago.
Today hacked a driver (template was serial.c) for a polling PDC device 
driver. I called it pdc_drv.c, the device is "ttyQ0", with MAJOR 30,
MINOR 0
and I use a polling period of 30ms (enough for a serial console i/f).

Because I have not further implemented the internel console i/f for my
driver, I used the hack with the link of
	/dev/console --> /dev/ttyQ0
And my machine boots up via NFS !

Perhaps we can make a "driver" out of this "hack" !

In my driver I also use the hack, I have done for the serial.c, that
with `^\' I can reboot ( machine_restart() ) the computer to work
remote on it !

With friendly regards

	Christoph P.



-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




From - Thu Nov 08 21:17:15 2018
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Subject: [parisc-linux] [Fwd: Success: My E55 (9000/856) runs bash-2.04 via PDC]
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This is a multi-part message in MIME format.
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Subject: Success: My E55 (9000/856) runs bash-2.04 via PDC
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Hello PA-RISC community.

Again and again I want to have my E55 running Linux, but the problem
is the serial lines (8-port MDP) is a proprietary interface. So I needed
a solution. 

I had the idea to use the PDC console, months ago.
Today hacked a driver (template was serial.c) for a polling PDC device 
driver. I called it pdc_drv.c, the device is "ttyQ0", with MAJOR 30,
MINOR 0
and I use a polling period of 30ms (enough for a serial console i/f).

Because I have not further implemented the internel console i/f for my
driver, I used the hack with the link of
	/dev/console --> /dev/ttyQ0
And my machine boots up via NFS !

Perhaps we can make a "driver" out of this "hack" !

In my driver I also use the hack, I have done for the serial.c, that
with `^\' I can reboot ( machine_restart() ) the computer to work
remote on it !

With friendly regards

	Christoph P.



-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at

--------------27CEEF89CF3134258929BF29--





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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 9000/730 booting but SCSI Problems (mke2fs)
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Thanks Richard, the commnad line change you described seems 
to have worked a treat.

My problem has now moved on, have got all things up and running 
of the hard disk now, but a few key exes are hanging, rpc.lockd, 
nscd, tar etc.

The ones in the init i have got around by removing the entries from 
rcx.d etc, but not being able to use tar is a pain.

>From posts around feb it looked like there was a known problem 
with spinlock.  Has any progress been made in that area?

ta
Jeffa

> Hi Jeff,
>   Looks like your scsi sub-system basically works, as you have presumably
> managed to partition your disk with fdisk, and you say the disks are
> detected ok on boot.  So, this doesn't look like the problem we have
> with older machines and lack of documentation.  On those older machines
> we don't even detect the disks.
> 
> First, can you send your boot messages so I can see what sort of machine
> you have and want is on the scsi bus.
> 
> Then you should check scsi bus termination and maybe try a different
> cable (unless you know the h/w works with some other OS).
> 
> You could try booting with "sim700=nodisc:0xff" on the command line to
> prevent scsi disconnect/reselect cycles.
> 
> You could try some small scsi data transfers with 'dd' to see if it works
> for simple things.
> 
> Richard
> 
> 
> On Mon, Apr 09, 2001 at 11:54:02PM +0100, Jeff Arthur wrote:
> > After help form Christoph Plattner I resolved my init 
> > problems, and got a prompt!! 
> > 
> > (Thanks Christoph, I had the problem you 
> > described a couple of builds earlier so 
> > recreated the problem, applied your fix and it 
> > worked a treat)
> > 
> > however I now have a problem with SCSI, all 
> > devices are seen ok, have removed cdrom as I 
> > noted in some earlier posts that this could 
> > cause problems, but when creating filesystems 
> > the SCSI dies.
> > 
> > I have tried a couple of drives, boot log looks 
> > fine.  Any Suggestions or is this just down to 
> > lack of docs in this area, as I noted from posts 
> > back in Feb?
> > 
> > hpbox:~# mke2fs /dev/sda3
> > mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
> > Filesystem label=
> > OS type: Linux
> > Block size=4096 (log=2)
> > Fragment size=4096 (log=2)
> > 71520 inodes, 142991 blocks
> > 7149 blocks (5.00%) reserved for the super user
> > First data block=0
> > 5 block groups
> > 32768 blocks per group, 32768 fragments per group
> > 14304 inodes per group
> > Superblock backups stored on blocks:
> >         32768, 98304
> > 
> > Writing inode tables: done
> > scsi0: Unable to abort command for target 2
> > scsi0: Unable to send Bus Device Reset for target 2
> > scsi0: Unable to do SCSI bus reset
> > scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> > scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
> > scsi0: dsp = 000b2038 (script[0x080e]), dsps = 000b2cde, target = 0
> > scsi0: Failing command for ID2
> > SCSI disk error : host 0 channel 0 id 2 lun 0 return code = 2
> >  I/O error: dev 08:03, sector 160
> >  I/O error: dev 08:03, sector 162
> >  I/O error: dev 08:03, sector 0
> >  I/O error: dev 08:03, sector 288
> >  I/O error: dev 08:03, sector 416
> >  I/O error: dev 08:03, sector 544...
> > 
> > 
> > ... I/O error: dev 08:03, sector 1052022
> >  I/O error: dev 08:03, sector 1052150
> > Warning: could not erase block 0: Attempt to write block from filesystem resulte
> >  I/O error: dev 08:03, sector 2
> > d in short write I/O error: dev 08:03, sector 8
> > 
> > Writing superb I/O error: dev 08:03, sector 262144
> > locks and filesy I/O error: dev 08:03, sector 262152
> > stem accounting  I/O error: dev 08:03, sector 524288
> > information:  I/O error: dev 08:03, sector 786432
> >  I/O error: dev 08:03, sector 786440
> >  I/O error: dev 08:03, sector 1048576
> > done
> >  I/O error: dev 08:03, sector 2
> >  I/O error: dev 08:03, sector 8
> >  I/O error: dev 08:03, sector 262144
> >  I/O error: dev 08:03, sector 262152
> >  I/O error: dev 08:03, sector 786432
> >  I/O error: dev 08:03, sector 786440
> > 
> > 
> > Thought for the Day:
> >    Home is where you hang your @
> > 
> > 
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> > 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux



Thought for the Day:
   The modem is the message. 





From - Thu Nov 08 21:17:15 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] xfree86 build problem
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amodra@one.net.au wrote:
> > 2) c++ isn't returning the error reported by collect2
> >    Fortunately the build soon dies since the expected product
> >    doesn't exist. Known problem?
> 
> Are you sure about this statement?  It might just be "make" (the presense
> of those `+'s is ringing bells with me but I don't recall the exact
> signifigance.)

I'm not. It might be a make bug.
I've seen make say something like "[ ... ignored ]" when ignoring an error.

Anyway, after spending another two hours on the -fPIC problem, I'm
starting to think the xfree86 lib build is broken by design for __hppa__.
I'll send out another mail with a patch + recipe for building the libs.
I'm pretty close to finding workarounds (not solutions) for the problems.

Do other arches allow non-PIC .o's to be linked into a .so lib?

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Ulrich Drepper <drepper@redhat.com>
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Grant Grundler <grundler@puffin.external.hp.com> writes:

> Do other arches allow non-PIC .o's to be linked into a .so lib?

Many do.  You will get text relocations (indicated by the DT_TEXTREL
tag) which render your DSO unsharable.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------




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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] xfree86 build problem
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> Anyway, after spending another two hours on the -fPIC problem, I'm
> starting to think the xfree86 lib build is broken by design for __hppa__.
> I'll send out another mail with a patch + recipe for building the libs.
> I'm pretty close to finding workarounds (not solutions) for the problems.

Did the patches I built to get XFree86 libs building not get as far as you.
I sent them to Paul (I believe)

> Do other arches allow non-PIC .o's to be linked into a .so lib?

Generally - yes.




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On Sun, Apr 15, 2001 at 12:41:00AM +0100, Alan Cox wrote:
> > Do other arches allow non-PIC .o's to be linked into a .so lib?
> 
> Generally - yes.

True, but it's not recommended.  The reason being that non-PIC code in
a shared lib will mean lib pages with relocations can't be shared between
processes should the library be loaded at a different virtual addresses.

--
Alan Modra





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Alan Cox wrote:
> Did the patches I built to get XFree86 libs building not get as far as you.
> I sent them to Paul (I believe)

nope. On Thursday, paul (Lahaie) forwarded an email from you (Feb 12th)
stating you would dig up the patches for him but no patches.I pointed
this out to paul but he didn't reply yet. Can you fwd me the patches?

Besides, alot has changed since you built xfree86.
But I could use it as guidance.

BTW, I did get the libs to build.  I've hacked the Imakefile for libGLU
so only the .a gets built.  Battling my way through programs directories
now. A good test to see if the libs are useful or not (already found
the libfreetype.a was missing/stale).
Short notes and diff are on pehc:~grundler/*.xfree86

ta,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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On Sat, Apr 14, 2001 at 10:36:25PM -0600, Grant Grundler wrote:
> amodra@one.net.au wrote:
> > True, but it's not recommended.  The reason being that non-PIC code in
> > a shared lib will mean lib pages with relocations can't be shared between
> > processes should the library be loaded at a different virtual addresses.
> 
> Well, I guess either x86 doesn't have that problem,

It does.

> no one has noticed it, or no one cares (OpenGL fans?).

Possibly :-(  As Ulrich mentioned, it's fairly easy to see if a shared lib
can't actually be shared.  "readelf -d libwhatever.so | grep DT_TEXTREL"

> Under build-env/xc/lib/GL/glu Imakefiles
> all have the following construct: (eg libtess/Imakefile)
> 
> 	NormalLibraryTarget(tess, $(OBJS))
> 		rm -f unshared; ln -sf . ./unshared
> 
> The result is only .a's get built and the libGLU.so is globbed together
> from those. The last step fails for __hppa__ since the .o's are non-PIC.

I suppose you could build the .a lib with -fPIC as a workaround.

-- 
Alan Modra





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> stating you would dig up the patches for him but no patches.I pointed
> this out to paul but he didn't reply yet. Can you fwd me the patches?

Sent off list




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Ryan Bradetich said:
> I believe the 735 requires rbootd.  I know debian has a package for this
> and I think a redhat rbootd package can be found at:
> 
> ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/rbootd-2.0-2.tar.gz
> 
> - Ryan

Tut tut, how did I forget that ... I also have a 735 which gets its
kernel by rbootd.  The rbootd server runs the LAN's dhcpd as well, that
is my excuse.  =)

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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Christoph Plattner wrote:
> 
> Hello PA-RISC community.
> 
> Again and again I want to have my E55 running Linux, but the problem
> is the serial lines (8-port MDP) is a proprietary interface. So I needed
> a solution.
> 
> I had the idea to use the PDC console, months ago.
> Today hacked a driver (template was serial.c) for a polling PDC device
> driver. I called it pdc_drv.c, the device is "ttyQ0", with MAJOR 30,
> MINOR 0
> and I use a polling period of 30ms (enough for a serial console i/f).
> 
> Because I have not further implemented the internel console i/f for my
> driver, I used the hack with the link of
>         /dev/console --> /dev/ttyQ0
> And my machine boots up via NFS !
> 
> Perhaps we can make a "driver" out of this "hack" !
> 
> In my driver I also use the hack, I have done for the serial.c, that
> with `^\' I can reboot ( machine_restart() ) the computer to work
> remote on it !
> 
> With friendly regards
> 
>         Christoph P.
> 
> --
> -------------------------------------------------------------------------
> private:        christoph.plattner@dot.at
> company:        christoph.plattner@alcatel.at
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
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From - Thu Nov 08 21:17:16 2018
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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] One further step ... success: My E55 (9000/856) runs bash-2.04 via PDC
Date: Mon, 16 Apr 2001 00:18:47 +0200
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One further step !

I saw in pdc_cons.c (under arch/parisc/kernel/) that the device
'ttyB'... is
defined for the PDC console. So I changed the driver and added the
driver
as "device" in pdc_cons.c, in the console structure.

So no the thing is accessed in the correct way. The /dev/console is
original
(major=5, minor=1) and not a link to anywhere, and the kernel command
line
has the string "console=ttyB0". (/dev/ttyB0 is major=30, minor=0) !

With friendly regards

	Christoph

PS: I wrote these last mails, because there are some E45/E55 users out
there,
and they are not happy not being able to boot linux. Now there is a way
to use
it via NFS ROOT with the following restrictions:

	- Only port ttyB0 is usable (polling driver, only port 0 console of
MDP)
	- No SCSI support (only NFS ROOT !)
	- nO support of the parallel port.

-------------------------------------------------------------

Christoph Plattner wrote:
> 
> Hello PA-RISC community.
> 
> Again and again I want to have my E55 running Linux, but the problem
> is the serial lines (8-port MDP) is a proprietary interface. So I needed
> a solution.
> 
> I had the idea to use the PDC console, months ago.
> Today hacked a driver (template was serial.c) for a polling PDC device
> driver. I called it pdc_drv.c, the device is "ttyQ0", with MAJOR 30,
> MINOR 0
> and I use a polling period of 30ms (enough for a serial console i/f).
> 
> Because I have not further implemented the internel console i/f for my
> driver, I used the hack with the link of
>         /dev/console --> /dev/ttyQ0
> And my machine boots up via NFS !
> 
> Perhaps we can make a "driver" out of this "hack" !
> 
> In my driver I also use the hack, I have done for the serial.c, that
> with `^\' I can reboot ( machine_restart() ) the computer to work
> remote on it !
> 
> With friendly regards
> 
>         Christoph P.
> 
> --
> -------------------------------------------------------------------------
> private:        christoph.plattner@dot.at
> company:        christoph.plattner@alcatel.at
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] 9000/730 booting but SCSI Problems (mke2fs)
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To: jeffa@owlpoo.org
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On Sat, Apr 14, 2001 at 02:59:50PM +0100, Jeff Arthur wrote:
> My problem has now moved on, have got all things up and running 
> of the hard disk now, but a few key exes are hanging, rpc.lockd, 
> nscd, tar etc.
> 
> The ones in the init i have got around by removing the entries from 
> rcx.d etc, but not being able to use tar is a pain.
> 
> >From posts around feb it looked like there was a known problem 
> with spinlock.  Has any progress been made in that area?

Yes, this problem is now fixed.  http://bugs.parisc-linux.org/db/76/76.html

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] Booting 735/99
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On Fri, Apr 13, 2001 at 11:31:54PM +0800, Andrew Shugg wrote:
> I don't think a partition table written on the i386 would be readable by
> the HP box though.

Actually, it is.  We decided to simply adopt the x86 partition format
rather than defining a new one.

-- 
Revolutions do not require corporate support.




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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] one problem with base-20010404 on 720, no problems on E55
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Hello PA-RISC group(s)!

Thanks again for your good work.

The new tarball "base-20010404" has a problem on my 9000/720. Some
commands begin to block (I have not debugged yet).
For example a 
	ls -l /
blocks. It outputs "total 24" or whatever, but no files are displayed,
and the command blocks (no prompt comes again).

On my E55 server (9000/856) the base-20010404 works perfect !! 
An "ls -l /" works perfectly as expected.

The blocking on the 720 I also saw on some other commands, but I don't 
remember at the moment.

With friendly regards

	Christoph Plattner


-- 
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From: Mattias Wadenstein <maswan@acc.umu.se>
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"apt-get -b source screen" gives this after a while:

acls.c: In function `AclSetPerm':
acls.c:845: Internal error: Segmentation fault
Please submit a full bug report, with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

I have done this twice and gotten the segfault in the same place.

Some output:

do_page_fault() pid=13654 command='cc1' type=15 address=0x00000008

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111000001111
r0-3     00000000 0027d024 0012a85b 00000000
r4-7     002a2270 00000000 00000000 00000000
r8-11    00000020 00000000 00249824 00000007
r12-15   0000001c 0027d024 0027d024 0024a024
r16-19   00000000 00000021 0021ef14 003a08b8
r20-23   00000000 003a08d8 40149ec8 00000018
r24-27   00000024 00000040 003a08b8 00247824
r28-31   003a08b8 003a08b0 bff01180 000bdb07
sr0-3    00000c64 00000c64 00000000 00000c64
sr4-7    00000c64 00000c64 00000c64 00000c64

IASQ: 00000c64 00000c64 IAOQ: 0012a86b 0012a86f
 IIR: 0c701093    ISR: 00000c64  IOR: 00000008
ORIG_R28: 4052ea60

do_page_fault() pid=14793 command='cc1' type=15 address=0x00000008

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111000001111
r0-3     00000000 0027d024 0012a85b 00000000
r4-7     002a2270 00000000 00000000 00000000
r8-11    00000020 00000000 00249824 00000007
r12-15   0000001c 0027d024 0027d024 0024a024
r16-19   00000000 00000021 0021ef14 003a08b8
r20-23   00000000 003a08d8 40149ec8 00000018
r24-27   00000024 00000040 003a08b8 00247824
r28-31   003a08b8 003a08b0 bff01180 000bdb07
sr0-3    000018bc 000018bc 00000000 000018bc
sr4-7    000018bc 000018bc 000018bc 000018bc

IASQ: 000018bc 000018bc IAOQ: 0012a86b 0012a86f
 IIR: 0c701093    ISR: 000018bc  IOR: 00000008
ORIG_R28: 4052ea60

/Mattias Wadenstein - trying to build some stuff





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] 710 SCSI & LAN problems
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To: buffalo bill <buffalo@uranus.solar-system.the7lg.de>
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On Fri, Apr 13, 2001 at 12:22:48AM +0200, buffalo bill wrote:
> > No, that is expected behaviour on older systems with non-consistent
> > memory.  The problem appears to be with interrupt routing from the
> > scsi and lan chips to the cpu, and we don't have the documentation to
> > resolve that at the moment.
> >
> > Richard
> 
> Thank you for your answer.
> 
> I almost forgot to say: HIL is also broken on the 710.
> I guess there is nothing recently working on the 710 that needs to handle 
> with interrupts.
> 
> Could you tell me on which chip is the interrupt handling done ?
> Is there something like a APIC ?

A custom HP chip, called ASP on the 710, I think.

Richard





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Xref: news.gmane.org gmane.linux.ports.parisc:10801

On Sat, Apr 14, 2001 at 02:59:50PM +0100, Jeff Arthur wrote:
> Thanks Richard, the commnad line change you described seems 
> to have worked a treat.

Hmm, so it seems the sim700 driver has problems with disconnect/reselect
enabled, on your system at least.  I'll do some testing here.

> My problem has now moved on, have got all things up and running 
> of the hard disk now, but a few key exes are hanging, rpc.lockd, 
> nscd, tar etc.
> 
> The ones in the init i have got around by removing the entries from 
> rcx.d etc, but not being able to use tar is a pain.
> 
> >From posts around feb it looked like there was a known problem 
> with spinlock.  Has any progress been made in that area?

As Matthew said, that is fixed.  You might try a new base tarball from
<ftp://puffin.external.hp.com/pub/parisc/binaries/debian/basetars/>.

Richard





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From: "Brian S. Julin" <bri@mojo.calyx.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Wow.
Date: Tue, 17 Apr 2001 10:54:21 -0400 (EDT)
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I just updated my system so I could begin work on the HIL
driver (have docs now, thanks everyone) and that was MUCH
less painful than I thought it was going to be.  Sure, I
had to comb through the packages with dselect and download
some of the .debs by FTP, but the toolchain and kernel
built as per the instructions with no finagling, and the
upgrade of my old crusty libc didn't break the system.

Kudos to all.  This distro is really shaping up!

--
Brian S. Julin





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From: Jes Sorensen <jes@linuxcare.com>
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Subject: Re: [parisc-linux] FB cleanups
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>>>>> "Alan" == Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

>> Well time to go study the bus behaviors and compare them then. How
>> does gsc behave wrt cache coherency, read-around-write, write
>> ordering etc etc.

Alan> And ISA is noticable for the fact it doesnt behave quite like
Alan> PCI. You use readb/readw/readl on ISA.

Yes, except that ISA has stronger semantics than PCI.

>> Using writeb on a gsc is misleading everybody else who reads the
>> code into believing that it's a PCI device.

Alan> Rubbish.

Unfortunately not, look at the fb code to see the chaos.

Jes





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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] FB cleanups
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On Tue, Apr 17, 2001 at 08:04:53PM +0200, Jes Sorensen wrote:
> >>>>> "Alan" == Alan Cox <alan@lxorguk.ukuu.org.uk> writes:
> 
> Yes, except that ISA has stronger semantics than PCI.

You need to issue a read after a write to be sure the write hit the
device on ISA?

> >> Using writeb on a gsc is misleading everybody else who reads the
> >> code into believing that it's a PCI device.
> 
> Alan> Rubbish.
> 
> Unfortunately not, look at the fb code to see the chaos.

huh?  the fb code is ugly precisely because people aren't using
readb/writeb to access device memory.

-- 
Revolutions do not require corporate support.




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> > Yes, except that ISA has stronger semantics than PCI.
> 
> You need to issue a read after a write to be sure the write hit the
> device on ISA?

In some cases yes.





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From: Christoph Plattner <christoph.plattner@dot.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Interesting problem concerning 7100LC vs 7100
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Hello !

After successful usage of the E55, I recompiled the linux kernel for the
7100LC instead of 7100 CPU.

At the second boot, I triggered an error in my pdc_drv.c (device driver
for
PDC console). After I fixed that, I saw following error output:

Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 196.1.1.20, my address is 196.1.1.100
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 196.1.1.20
Looking up port of RPC 100005/2 on 196.1.1.20
VFS: Mounted root (nfs filesystem) readonly.
command /sbin/init
modprobe: modprobe: Can't open dependencies file
/lib/modules/2.4.0/modules.dep (No such file or directory)
INIT: version 2.78 booting

Dumping Stack from 13f34000 to 13f34e00:
4000 00000000 00000040 00000000 00000001 102673e0 00000000 00000000
ffffffff
4020 00000005 00000000 00000000 100d3120 00000000 00000000 ffffffff
102672e0
4040 102672e0 000000e5 102b4000 100e4000 100d3120 1026a1e0 00000000
00000012
4060 00000000 00000000 80000000 00000009 00000000 00000000 00000000
00000009
4080 00000000 1007c000 1007c000 00000000 00000000 100e4000 13f34098
13f34098
40a0 00000000 102ce898 13f340a8 13f340a8 00000000 00000000 00000000
00000000
40c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
13f34000
40e0 1011baac 00000000 00000001 00000000 00000000 000000e5 00000002
0000004e
4100 00000001 00000000 00000000 00000000 00000000 00000000 80000000
00000000
4120 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4140 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4160 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4180 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
41a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
41c0 fffffeff 00000000 ffffffff 00000000 1026802c ffffffff ffffffff
ffffffff
41e0 ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff
ffffffff
4200 ffffffff 000003ce 000003ce 00000400 00000400 ffffffff ffffffff
ffffffff
4220 ffffffff ffffffff ffffffff 0000696e 69740065 72000000 00000000
00000000
4240 00000000 00000000 00000000 00000000 00000000 00000000 0004000f
40147654
4260 400ef13f faf007d0 00000000 0000b268 faf00850 faf008d8 00000065
00000078
4280 0000b294 00000040 faf008d0 00000001 00000063 faf007b0 00000020
0000b270
42a0 faf00790 4014eb18 00000006 400474b8 00000000 00000008 00000000
faf00850
42c0 00000009 00009af8 40147654 0000b1a8 faf00a80 400ef127 00000000
00000000
42e0 00000000 00000000 00000000 00000000 00000000 00000000 10267010
00000001
4300 102bba96 00000004 102bba83 00000000 00000012 1026740c 10267010
00000000
4320 00000000 000000ff 00000040 00000180 00000000 000003a8 00000000
296b229a
4340 002bb4c0 10252010 00000000 00003fff 1007c7c0 00000040 000d081f
00000000
4360 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4380 00000000 00000000 cccccccd 00000030 00000000 cccccccd 7fffffff
7fffffff
43a0 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000 00000000
00000000
43c0 41800000 00000000 00000010 00000010 00000000 00000000 00000004
00000000
43e0 00000000 00000004 00000004 00000004 00000004 00000004 00000004
00000004
4400 400ef14b 400ef14f 00000006 13f34000 00000000 13f34540 10106cc8
0000000e
4420 0f9a1280 00000004 40147654 00000000 0026e000 00000000 100e91e0
100ea040
4440 100e2880 00020000 00000000 00000000 13f3444c 00000000 00000000
00000000
4460 00000000 00000000 00000000 00000000 00000001 00000001 00000000
00000000
4480 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
44a0 00000000 00000000 00000000 10106720 00000000 00000000 00000000
00000000
44c0 faf01558 00000020 400ef11c 00000000 00028148 00000020 4014eb18
faf01558
44e0 00028148 1007c000 1007c840 10106efc 00000000 00000000 00000000
00000000
4500 faf004d8 4013aa40 00000000 00000000 00000000 00000000 4001d000
00000003
4520 4014eb18 faf00548 00000000 1011b558 00000000 4014eb18 faf003c0
00000000
4540 1007ca00 00023b52 faf00850 0000b268 00000000 faf007d0 4014ba54
00000000
4560 faf00298 00000014 00000000 101223c0 4001d000 00001000 100d3120
00000000
4580 ffffffea 100ea040 00000000 100e1360 100ea040 00000000 100e1360
0000006d
45a0 ffffffea 100e1360 00000000 101026b8 100e1360 10073420 00000000
4014eb18
45c0 100e91e0 1022e000 102d1010 1022e000 1022e000 1022e000 13f34000
00000000
45e0 00000000 102d1010 4001d000 10120b00 100d15a0 00000000 100d3120
00000000
4600 1022e000 13f34000 13f34000 1022e000 1022e000 1022e000 13f34000
100d3120
4620 00000000 00000000 00000000 101153e4 0000006d 4001d000 100e0bf8
100e1360
4640 13f345c0 100d30a0 100d1520 100d3120 0000b294 00000078 00000065
faf008d8
4660 00000004 40147654 0000001a 13f34258 00000000 13f34000 00000003
100e91e0
4680 100d30a0 100d3120 00000000 100d3120 0000a000 faf00000 faf0a000
00000000
46a0 00000000 00000000 00000000 10101460 102d1010 0007ffff 00000000
100d3120
46c0 0000a000 faf00000 1007c000 100d1420 13f34258 13f34000 100d3120
100d313c
46e0 100d1360 00000020 0003aca0 101343a8 0000000f 00000011 13f348c0
00000000
4700 00000000 00000000 00000000 03fd4725 101399c8 00000000 0000ff00
102ce010
4720 1007c000 100d3120 13f34000 1012700c 100d3120 00000000 00000000
00000000
4740 00000040 0000001a 100d313c 40147654 00000001 100d1360 100d3120
ffffffff
4760 40147654 0000ff00 102b3810 102b4000 00000012 13f34000 1007c000
00000000
4780 00000000 00000000 00000000 00000000 101399c8 00000323 1022e800
1022e800
47a0 10000000 00000015 13f30fac 10126224 13f30fac 00000230 00000001
9999999a
47c0 0004e70f 00000027 101262bc 103ee500 13f30000 40147654 103ebc00
100d1360
47e0 03fd4725 102d1010 100d3120 13ed551c faf008d0 00000001 00000063
faf007b0
4800 13f34258 0000b270 faf00790 00000001 00000000 00000000 00000000
100203f0
4820 0000000e 13fd4640 13f30640 10252010 ffffffff 00000002 13f34a00
10132c94
4840 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4860 10267010 00000001 102bba96 00000004 102bba83 00000000 00000012
1026740c
4880 10267010 00000000 00000000 000000ff 00000040 00000180 00000000
000003a8
48a0 00000000 296b229a 002bb4c0 10252010 00000000 00003fff 1007c7c0
00000040
48c0 000d081f 00000000 00000000 00000000 00000000 00000000 00000000
00000000
48e0 00000000 00000000 00000000 00000000 cccccccd 00000030 00000000
cccccccd
4900 7fffffff 7fffffff 7f7fffff ffffffff 7f7fffff ffffffff 00000000
00000000
4920 00000000 00000000 41800000 00000000 00000010 00000010 00000000
00000000
4940 00000004 00000000 00000000 00000004 00000000 00000000 00000000
00000000
4960 00000000 00000000 10101b18 10101b1c 00000006 00000000 00000000
00000000
4980 00000021 0000001f 6b560078 100d3120 100e4000 102ce010 00000133
100dded4
49a0 1003e624 102d1010 102d1010 1011cb6c 100dde40 00000000 00000003
100e91e0
49c0 00000000 101399c8 102d1010 0007ffff 100d1660 102bf810 102ce010
102ce820
49e0 102ce010 00000000 1026866c 1010624c 00000000 100dad38 13f34bc0
10219b1c
4a00 100d1360 103ebc00 40147654 13f30000 103ee500 103ebc00 40147654
13f30000
4a20 103ee500 00000000 00000000 10120210 00000000 00000000 00000000
00000000
4a40 00000001 00000001 13f34000 1004e4e0 1004e4e0 100ddfc0 100dde40
103ea1c0
4a60 13f349c8 00000001 00000000 1011c820 00000000 00000000 00000000
00000000
4a80 0000000c 102bfea0 00000001 00000001 13f30000 0000000f 102ce010
102bf810
4aa0 03fd4725 102d1010 100d3120 1011c9f4 faf008d0 00000001 00000063
faf007b0
4ac0 00000000 0000b270 faf00790 00000000 fffffffd 102ce7e0 101dbea4
00000001
4ae0 00050bfc 00000017 100251a0 1011cb6c 00000100 000003c0 13f34cc0
10103404
4b00 1004e800 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4b20 10267010 00000001 102bba96 1011fb18 102bba83 00000000 00000012
1026740c
4b40 1004f640 1004e800 100df130 100df130 102ce010 102ce46c 00000000
000003a8
4b60 00000000 296b229a 002bb4c0 10252010 00000000 00003fff 1007c7c0
00000040
4b80 000d081f 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4ba0 00000000 00000000 00000000 00000000 cccccccd 00000030 00000000
cccccccd
4bc0 0006000f 10267ff8 1011cc38 13f34b48 13f34b48 102ce820 102ce010
102bf810
4be0 03fd4725 102d1010 100d3120 13ed551c faf008d0 00000001 00000063
faf007b0
4c00 13f347c0 0000b270 faf00790 100df130 6f64652e 0000000f 6f64652e
102ce010
4c20 ffffffff 1004e800 0a7e7e3a 10252010 0000000f 0000000b 13f34e00
1011cc38
4c40 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4c60 10267010 00000001 102bba96 00000004 102bba83 00000000 00000012
1026740c
4c80 10267010 00000000 00000000 000000ff 00000040 00000180 00000000
000003a8
4ca0 00000000 296b229a 002bb4c0 10252010 00000000 00003fff 1007c7c0
00000040
4cc0 000d081f 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4ce0 00000000 00000000 00000000 00000000 cccccccd 00000030 00000000
cccccccd
4d00 7fffffff 7fffffff 7f7fffff ffffffff 7f7fffff ffffffff 00000000
00000000
4d20 00000000 00000000 41800000 00000000 00000010 00000010 00000000
00000000
4d40 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4d60 00000000 00000000 6f64652e 6f646532 00000006 00000000 00000000
00000000
4d80 100e91e0 00000001 08190254 100dde40 100d15e0 102d1010 102d1010
13f34980
4da0 100251e0 00000002 10254380 10102ce8 102ce010 13f34980 00000057
10076228
4dc0 13f34a80 00000020 1025405c 00000000 00000000 10268694 03200801
007805fe
4de0 c4010164 c4010114 100f0080 10106720 c4010114 00000000 00000000
00000000

Bad Address (null pointer deref?): Code=6 regs=13f34bc0 (Addr=6f64652e)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001111
r0-3     00000000 10267ff8 1011cc38 13f34b48
r4-7     13f34b48 102ce820 102ce010 102bf810
r8-11    03fd4725 102d1010 100d3120 13ed551c
r12-15   faf008d0 00000001 00000063 faf007b0
r16-19   13f347c0 0000b270 faf00790 100df130
r20-23   6f64652e 0000000f 6f64652e 102ce010
r24-27   ffffffff 1004e800 0a7e7e3a 10252010
r28-31   0000000f 0000000b 13f34e00 1011cc38
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 6f64652e 6f646532
 IIR: 08190254    ISR: 100dde40  IOR: 100d15e0
ORIG_R28: 00000000


In `arch/parisc/mm/fault.c' a memory fault has occured. But how can
analyse
where. I am new to HP PA RISC (since Christmas...), but I have skills on
Intel
for such problems.

First of all the address in IAOQ is NOT one of the linux kernel, but how
can
I find out, from which process. We also do not fall in the

	if (!user_mode (...)) {
		:	
	}

branch, so it does not come from the kernel.

Is this correct in this code, that we fall through in the part ...

	bad_area:
		if (user_mode (...)) {
			:
			return;
		}

... if it is NOT user_mode to `no_context:' label ?

How can I read the stack dump. I think the current stack pointer
position is the
"last line" of the dump, and I guess `r30' is the stack pointer ?!?
In the disassemble code the register `sp' is used for the stack, is this
equal 
to `r30' ?

Where can the address 6f646532 or so can from. What address have the
processes
started on the command line or per kernel init, for example INIT with
pid=1.
I think, those addresses are generated at loading and not located fix,
correct ?

I hope, any can give me some hints to continue HP PARISC hacking.

----

I recompiled the kernel for the CPU 7100 again, and the problem was
gone....
Has the E55 (9000/856) a special bug, or do I trigger a special error
case
here, a race, an error in my console driver, or ......


With friendly regards

	Christoph Plattner



-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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From: "Pete" <plaven@ozemail.com.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:10807

Hi everyone,

I have a 715/64 that I'm trying to boot across the network.

I grabbed the latest base tar ball from the ftp server and 
uncompressed it. 

I grabbed rboot and set it up and didn't work, so I have set bootps 
and tftp according to the howto at http://www.oswg.org/oswg-
nightly/oswg/en_US.ISO_8859-1/articles/parisc-linux/parisc-linux-
boot.html  (very helpful too I might add)

from boot_admin I boot lan, I have tcpdump listening on eth1 where 
the hppa box is connected via aui/TP and UTP cross over.  I can 
see the broadcast and /var/log/messages shows that tftp is looking 
for iplboot, as copied from the tar ball boot dir.

The hp box fails with an error on the console (I have a vga screen 
on the box):

"ERROR: Cannot load IPL, error detected."

Since this is my first time with nfsbooting it's likely I'm not doing 
something right there, ie, I don't have /etc/exports setup.. should I 
od this?

Please, some short pointers for a dummy.. :)  I _so_ want to IRC 
on this box!!  :)

Thanks.

Pete.





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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: [parisc-linux] Re: NFS root setup question
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Xref: news.gmane.org gmane.linux.ports.parisc:10808

"Pete" wrote:
> I have a 715/64 that I'm trying to boot across the network.
...
> The hp box fails with an error on the console (I have a vga screen 
> on the box):
> 
> "ERROR: Cannot load IPL, error detected."
> 
> Since this is my first time with nfsbooting it's likely I'm not doing 
> something right there, ie, I don't have /etc/exports setup.. should I 
> od this?

Yes. But you also need a *lifimage*.

I don't think matching lifimage's (matching the baseplus /boot/vmlinux)
where posted to the ftp site. I've posted a NFSROOT enabled lifimage for
a 32-bit/serial console (not STI enabled):
	ftp://puffin.external.hp.com/pub/parisc/binaries/lifimages/lifimage_32_serial_20010418.gz

Matching Systemp.map and vmlinux are in ../kernels directory.

For the 715's, append 'y' to the "boot lan y" in order to interactively
change the nfsroot= param (IP needs to point to the NFS server).
I don't recall if you need a different vmlinux embedded in the LIF or
if you can interactively tweak the palo boot params to use STI console
instead of serial.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Oliver Flimm <flimm@sigtrap.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] dumb question of the day
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Hi,

On Wed, Apr 18, 2001 at 09:02:52PM +1000, Pete wrote:
> I grabbed rboot and set it up and didn't work, so I have set bootps 
> and tftp according to the howto at http://www.oswg.org/oswg-
> nightly/oswg/en_US.ISO_8859-1/articles/parisc-linux/parisc-linux-
> boot.html  (very helpful too I might add)

hmm, very nice indeed.

> from boot_admin I boot lan, I have tcpdump listening on eth1 where 

Did you do a 'search' to get the correct lan boot path and then add it with
eg. path lan 192.168.2.1.3?

> the hppa box is connected via aui/TP and UTP cross over.  I can 
> see the broadcast and /var/log/messages shows that tftp is looking 
> for iplboot, as copied from the tar ball boot dir.

iplboot is only the file with the information about the bootsignature - the
bootloader (see below, its much too small for a Linux kernel), not the
kernel. palo needs this file and your out of the box (read: eg. compiled)
vmlinux to build a lifimage. That's the file you'll need as the bootable
kernel.

> The hp box fails with an error on the console (I have a vga screen 
> on the box):
> 
> "ERROR: Cannot load IPL, error detected."

I don't use the base tarball for netbooting just afterwards for the actual
installation on harddisk. Instead of this tarball I use the tarball
distributed via http://mkhppa1.esiee.fr/en/download.html
(fs_hd_20010320.tar.gz_global) for netbooting. But that's a historical
issue, everything should also work with the base tarball ;-)

So I don't know anything about the kernel in the base tarball. I use a
crosscompiler built from cvs to build a proper kernel capable of netbooting.
IIRC you have to compile the following options into the kernel:

root-nfs support
bootp support

and of course the other appropriate network drivers and options.

After compiling you'll get a vmlinux. This file isn't bootable because a
special bootsignature - the bootloader - is still lacking. To make the
kernel net-bootable you have to use palo with the following option set in
its Makefile:

NFSROOT = 192.168.2.1

(when 192.168.2.1 is the IP of the server that's providing the root-FS for
your HP9000).

With your crosscompiler environment correctly setup its just a matter of
'make xconfig;make dep;make clean;make palo'

As a result I get a lifimage, rename it to vmlinux and then use this file
for netbooting from /usr/tftpboot.

> Since this is my first time with nfsbooting it's likely I'm not doing 
> something right there, ie, I don't have /etc/exports setup.. should I 
> od this?

Yes, unless you want a nfsroot-boot without nfsroot ;-) And don't forget to
modify the following files in the nfs-root tree on your nfs-server (apart
from starting your nfs-server ;-):

/etc/inittab (as the files below its something like /usr/thisismyrootfs/etc/inittab) 

make sure you really have a getty waiting for you. I had a problem with this
once (possibly my own fault) but now I make sure each time.

/etc/fstab:

Insert the appropriate entry for your remote root-FS apart from a proc-entry, eg.

gandalf:/usr/tftpboot/boromir          /               nfs     defaults 0 0

Here gandalf is my nfs-root server and /usr/tftpboot/boromir is the toplevel
directory for the nfsroot tree of my 715/80 called boromir.

/etc/securetty:

Add 

ttyp0
ttyp1
ttyp2
ttyp3
ttyp4
ttyp5
ttyp6
ttyp7
ttyp8

when you want to do a telnet to your HP9000 (and your nfs-root provides a
telnet ;-). Some might consider this a security hole, but my machine is
secured from the internet, so I don't care ;-)

/etc/hosts:

Enter the IP and name of your HP9000 and your nfs-root server, eg:

127.0.0.1       localhost
192.168.2.8     boromir.sigtrap.de boromir
192.168.2.1     gandalf.sigtrap.de gandalf

/etc/hostname:

Insert your hostname in this file.

/etc/resolv.conf:

Insert your nameserver in this file, eg:

domain sigtrap.de
search sigtrap.de
nameserver 192.168.2.1

And now for the most important file:

/etc/network/interfaces:

Her you have to configure eth0, eg:

iface eth0 inet static
 address 192.168.2.8
 network 192.168.2.0
 netmask 255.255.255.0
 broadcast 192.168.1.255
 gateway 192.168.2.1
     
 iface lo inet loopback

Without our eth0 correctly set up and running you'll have problems to mount
your nfs-root via /etc/fstab.

On the bootp-server (which is also my nfsroot-server) you have to configure
/etc/bootptab, eg:

.global.prof:\
        :sm=255.255.255.0:\
	:ds=192.168.2.1:\
	:gw=192.168.2.1:\
	:sa=192.168.2.1:\
	:ht=ethernet:\
	:bf=vmlinux:
						

boromir:hd=/usr/tftpboot:rp=/usr/tftpboot/boromir:tc=.global.prof:hn:ha=ffffffffffff:ip=192.16
8.2.8:vm=rfc1048:

Insert your MAC-adress instead of ffffffffffff.

I hope that was all and I didn't mix up everything said ;-)

Perhaps the snippets of information can help you to get your machine up and
running.

Regards,

Oliver

-- 
!- Oliver Flimm - Cologne/Germany | flimm@sigtrap.de | http://www.sigtrap.de/ -!
!    Die Zehn Gebote haben 279 Woerter, die amerikanische Unabhaengigkeits-    !
! erklaerung hat 300 Woerter. Die EU-Verordnung zur Einfuhr von Karamelbonbons !
!-----------------------------  hat 25911 Woerter  ----------------------------!




From - Thu Nov 08 21:17:17 2018
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From: willy@ldl.fc.hp.com (Matthew Wilcox)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] strace updates
Date: Wed, 18 Apr 2001 17:26:28 -0600
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To: wakkerma@debian.org
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Xref: news.gmane.org gmane.linux.ports.parisc:10810

This patch adds some new syscalls to the HPPA list, it's against the current
sourceforge version.  Some of the lists seem to have bugs... some examples:

linux/mips/syscallent.h:        { 2,    TF,     printargs,              "stat64"}, /* 4213 */
that is sys_stat64 in other arches, not printargs

sys_truncate64 & sys_ftruncate64 actually take 3 arguments not 2 (problem
in all architectures)

linux/mips/syscallent.h:        { 3,    0,      printargs,              "fcntl64"       }, /* 4220 */
all other arches tag this as TF, not 0.

most of the entries for sys_fcntl64 just do printargs, but it's identical
to sys_fcntl.

i can't see how to build this from the sourceforge CVS -- i run autoconf
but config.h.in is not found.  probably because it's part of .cvsignore.

Index: syscallent.h
===================================================================
RCS file: /cvsroot/strace/strace/linux/hppa/syscallent.h,v
retrieving revision 1.1
diff -u -p -r1.1 syscallent.h
--- linux/hppa/syscallent.h	2001/03/27 12:17:17	1.1
+++ linux/hppa/syscallent.h	2001/04/18 22:06:40
@@ -1,31 +1,5 @@
 /*
- * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
- * Copyright (c) 1993, 1994, 1995 Rick Sladkey <jrs@world.std.com>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *	$Id: syscallent.h,v 1.1 2001/03/27 12:17:17 wichert Exp $
+ * Copyright (c) 2001 Hewlett-Packard, Matthew Wilcox
  */
 
 	{ 5,	0,	printargs,		"SYS_0"			}, /* 0 */
@@ -117,7 +91,7 @@
 	{ 1,	0,	sys_uselib,		"uselib"		}, /* 86 */
 	{ 1,	0,	sys_swapon,		"swapon"		}, /* 87 */
 	{ 3,	0,	sys_reboot,		"reboot"		}, /* 88 */
-	{ 3,	0,	sys_readdir,		"old_readdir"		}, /* 89 */
+	{ 6,	0,	sys_mmap,		"mmap2"			}, /* 89 */
 	{ 6,	0,	sys_mmap,		"mmap"			}, /* 90 */
 	{ 2,	0,	sys_munmap,		"munmap"		}, /* 91 */
 	{ 2,	TF,	sys_truncate,		"truncate"		}, /* 92 */
@@ -129,8 +103,8 @@
 	{ 4,	TN,	sys_recv,		"recv"			}, /* 98 */
 	{ 2,	TF,	sys_statfs,		"statfs"		}, /* 99 */
 	{ 2,	0,	sys_fstatfs,		"fstatfs"		}, /* 100 */
-	{ 3,	0,	sys_ioperm,		"ioperm"		}, /* 101 */
-	{ 5,	0,	sys_socketcall,		"socketcall"		}, /* 102 */
+	{ 2,	TF,	sys_stat64,		"stat64"		}, /* 101 */
+	{ 5,	0,	printargs,		"SYS_102"		}, /* 102 */
 	{ 3,	0,	sys_syslog,		"syslog"		}, /* 103 */
 	{ 3,	0,	sys_setitimer,		"setitimer"		}, /* 104 */
 	{ 2,	0,	sys_getitimer,		"getitimer"		}, /* 105 */
@@ -140,7 +114,7 @@
 	{ 5,	TF,	sys_pwrite,		"pwrite"		}, /* 109 */
 	{ 2,	0,	sys_getcwd,		"getcwd"		}, /* 110 */
 	{ 0,	0,	sys_vhangup,		"vhangup"		}, /* 111 */
-	{ 0,	0,	sys_idle,		"idle"			}, /* 112 */
+	{ 2,	TF,	sys_fstat64,		"fstat64"		}, /* 112 */
 	{ 0,	0,	sys_vfork,		"vfork"			}, /* 113 */
 	{ 4,	TP,	sys_wait4,		"wait4"			}, /* 114 */
 	{ 1,	0,	sys_swapoff,		"swapoff"		}, /* 115 */
@@ -227,11 +201,11 @@
 
 	{ 5,	0,	printargs,		"SYS_196"		}, /* 196 */
 	{ 5,	0,	printargs,		"SYS_197"		}, /* 197 */
-	{ 5,	0,	printargs,		"SYS_198"		}, /* 198 */
-	{ 5,	0,	printargs,		"SYS_199"		}, /* 199 */
-	{ 5,	0,	printargs,		"SYS_200"		}, /* 200 */
-	{ 5,	0,	printargs,		"SYS_201"		}, /* 201 */
-	{ 5,	0,	printargs,		"SYS_202"		}, /* 202 */
+	{ 2,	TF,	sys_lstat64,		"lstat64"		}, /* 198 */
+	{ 3,	TF,	printargs,		"truncate64"		}, /* 199 */
+	{ 3,	TF,	printargs,		"ftruncate64"		}, /* 200 */
+	{ 3,	0,	printargs,		"getdents64"		}, /* 201 */
+	{ 3,	TF,	sys_fcntl,		"fcntl64"		}, /* 202 */
 	{ 5,	0,	printargs,		"SYS_203"		}, /* 203 */
 	{ 5,	0,	printargs,		"SYS_204"		}, /* 204 */
 	{ 5,	0,	printargs,		"SYS_205"		}, /* 205 */




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From: Wichert Akkerman <wichert@cistron.nl>
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Subject: [parisc-linux] Re: strace updates
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To: Matthew Wilcox <willy@ldl.fc.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:10811

Previously Matthew Wilcox wrote:
> This patch adds some new syscalls to the HPPA list, it's against the current
> sourceforge version. 

Ok, looks good. I'll apply it when I wake up tomorrow.

> sys_truncate64 & sys_ftruncate64 actually take 3 arguments not 2 (problem
> in all architectures)

Hmm, nasty. I'll fix that for the other archs as wel.

> i can't see how to build this from the sourceforge CVS -- i run autoconf
> but config.h.in is not found.  probably because it's part of .cvsignore.

RTFM :). You have to run cvsbuild first which will call autoheader
and autoconf for you.

Wichert.

-- 
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From - Thu Nov 08 21:17:17 2018
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From: Xavier Debacker <xavier.debacker@esiee.net>
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Subject: [parisc-linux] PA/Linux iso 0.6 is out!
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New CD iso images can be downloaded at
http://mkhppa1.esiee.fr/en/isos.html

3 versions:
32bits kernel with serial console
32bits kernel with STI console
64bits kernel with serial console

all kernels are on each iso, the only difference is the default booting
kernel.

Enjoy, and give us feedback :-)

Xavier Debacker
ESIEE Team
http://www.esiee.fr/puffin







From - Thu Nov 08 21:17:17 2018
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From: Xavier Debacker <xavier.debacker@esiee.net>
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Subject: [parisc-linux] Re: PA/Linux iso 0.6 is out!
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SOETE Jo=EBl a =E9crit :

> Xavier,
>
> Thanks a lot for information. I will download it soon.
>
> May I ask you to publish md5sum checksum result to be sure of burning t=
he
> right file.
>
> Thanks in advance for help,
>         Joel

done.





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From: Andreas Thienemann <andreas@thienemann.net>
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Subject: [parisc-linux] Clock skew problems
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Hi,

I finally got my HP9000D to work with yesterdays CVS snapshot.

But now I'm havving problems with the clock.
I'm using the basplus-20010404.tar.gz as my NFS root and set
/etc/localtime /etc/timezone to point to
/usr/share/timezone/Europe/Berlin.

So far so good.

Then I set the clock to my current date, and run a 'hwlock --systohc
--utc'.

Just as usual.

But now, when I try do compile some software I'm having problems.

I'm getting the following message from make:

make: *** Warning: File `libdb.a' has modification time in the future
(2001-04-19 15:15:33 > 2001-04-19 15:15:04)

And I have absolutely no Idea why this is happening.

Thanks for any advice,
 andreas





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Subject: [parisc-linux] RE: [parisc-linux-announce] PA/Linux iso 0.6 is out!
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Xavier,

Thanks a lot for information. I will download it soon.

May I ask you to publish md5sum checksum result to be sure of burning the
right file.

Thanks in advance for help,
	Joel

> -----Original Message-----
> From: Xavier Debacker [mailto:xavier.debacker@esiee.net]
> Sent: Thursday, April 19, 2001 12:27 PM
> To: parisc-linux@lists.parisc-linux.org;
> parisc-linux-announce@lists.parisc-linux.org
> Subject: [parisc-linux-announce] PA/Linux iso 0.6 is out!
> 
> 
> New CD iso images can be downloaded at
> http://mkhppa1.esiee.fr/en/isos.html
> 
> 3 versions:
> 32bits kernel with serial console
> 32bits kernel with STI console
> 64bits kernel with serial console
> 
> all kernels are on each iso, the only difference is the 
> default booting
> kernel.
> 
> Enjoy, and give us feedback :-)
> 
> Xavier Debacker
> ESIEE Team
> http://www.esiee.fr/puffin
> 
> 
> 
> 
> 
> _______________________________________________
> parisc-linux-announce mailing list
> parisc-linux-announce@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-
linux-announce


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From - Thu Nov 08 21:17:17 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Clock skew problems
Date: Thu, 19 Apr 2001 12:02:54 -0600
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             <Pine.LNX.4.10.10104191518560.30090-100000@gate.ixs.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:10816

Andreas Thienemann wrote:
> But now, when I try do compile some software I'm having problems.
> 
> I'm getting the following message from make:
> 
> make: *** Warning: File `libdb.a' has modification time in the future
> (2001-04-19 15:15:33 > 2001-04-19 15:15:04)
>
> And I have absolutely no Idea why this is happening.

Everytime one updates the kernel time and it gets set *back*,
make will notice the derived objects (ie libdb.a) are newer than
current time and complain.

However, I suspect the kernel isn't keeping time perfectly and updating
from the HW clock (YMMV: historically, some servers had better RTC crystals)
is causing the problem. Having a bad RTC will also look like
the kernel isn't keeping time when in fact it is.

a500# date
Thu Apr 19 11:11:02 MDT 2001
a500# hwclock
Thu Apr 19 11:11:01 2001  -1.003308 seconds
a500# uptime
 11:11:36 up 21:25,  1 user,  load average: 0.00, 0.04, 0.04

So not doing too badly - but it needs to be fixed.
I'm assuming the A500 has a good RTC.
I'll submit a bug for you.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:17:17 2018
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From: Andreas Thienemann <andreas@thienemann.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:10817

Hi Grant,

On Thu, 19 Apr 2001, Grant Grundler wrote:

> Everytime one updates the kernel time and it gets set *back*,
> make will notice the derived objects (ie libdb.a) are newer than
> current time and complain.
Yes, I knew that. I still can remember when it happened to me for the
first time. I was a fresh linux novice running RedHat 3.0.3 and  compiling
his first kernel when I played with the timeconfig panel in another
xterm. Whoaps! One failed build attempt. ;)
 
> I'm assuming the A500 has a good RTC.
I've got a 821/D250 and I don't know anything about the accuracy of the
RTC clock.
But hwclock tells me the following:

[root@hp9000 root]# hwclock
Thu Apr 19 20:17:25 2001  -1.063290 seconds

> I'll submit a bug for you.
Thanks!

bye,
 andreas





From - Thu Nov 08 21:17:18 2018
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From: "Tran, Andrew" <andrew.tran@culvercity.org>
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Subject: [parisc-linux] Working Kernel for HP9000/715 (Or 750??) PA7100 99MHz 128MB
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Hello Everyone,
     Does anyone has a working kernel for HP9000/715 (Or 750??) PA7100 99MHz
128MB?  I've tried everything, but couldn't get it to boot up without
getting hang after stack dump.  If you do please let me have it.  

Thanks
P.S.  The lable on my machine just says Series 700.  I got the above info
when it boot up.  It's a huge machine!

Andrew Tran
IT Department
 <<...OLE_Obj...>> 
Ext.: 5953





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Since it has been awfully quiet on debian-hppa lately, I'm going to start
posting some status information here.  This time only, I'm going to cc the
parisc-linux list.  Those of you who read parisc-linux but not debian-hppa 
and care to see Debian-specific information like this in the future, please
go subscribe, http://www.debian.org/MailingLists/ is a good place to start.

We're close to have X packages that work.  Much of what remains unbuilt is
blocked one way or another waiting for X libraries...  ergo the awesomely
high "dep-wait" percentage.

Bdale



Build daemon statistics from 20010411-1955 to 20010418-1955 (7.00 days):

           #packages  % of taken  pkgs/day
-------------------------------------------
taken    :  9248                  1321.10
builds   :  9244         99.96%   1320.53
uploaded :   121          1.31%     17.29
failed   :    81          0.88%     11.57
dep-wait :  8139         88.01%   1162.68
give-back:   709          7.67%    101.28
no-build :    17          0.18%      2.43

          time          % of total
----------------------------------
total   :  168:00:18
building:   13:27:02     8.01%
idle    :  146:55:53    87.46%

processed package (upl+fail+dep+nob):    9067
slipped (proc-taken)                :    -181
builds/taken package                :    1.00
avg. time/taken package             :   00:00:05
avg. time/processed package         :   00:00:05
avg. time/build                     :   00:00:05




From - Thu Nov 08 21:17:18 2018
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From: willy@ldl.fc.hp.com (Matthew Wilcox)
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Subject: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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On Thu, Apr 19, 2001 at 18:50:34 EDT, Eric S. Raymond wrote:
> Remove dead CONFIG_BINFMT_JAVA symbol.

Please don't do this, it just makes merging our patches with Linus harder.
This has already been done in our tree since Feb 1.  In fact, please
don't touch anything in the tree which is PA specific; we have a large
arch update pending.

http://puffin.external.hp.com/cvs/linux/arch/parisc/config.in?log=y

shows the current state of our config.in, if you're curious.  If you
have any changes you want to make, don't hesitate to coordinate with us
by mailing parisc-linux@parisc-linux.org.





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From: "Eric S. Raymond" <esr@thyrsus.com>
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Subject: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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Matthew Wilcox <willy@ldl.fc.hp.com>:
> On Thu, Apr 19, 2001 at 18:50:34 EDT, Eric S. Raymond wrote:
> > Remove dead CONFIG_BINFMT_JAVA symbol.
> 
> Please don't do this, it just makes merging our patches with Linus harder.

Bother.  I've now heard "don't touch that tree!" from you and the ARM
folks.  I'm trying to be a good neighbor, here, but there is some
cleanup I want to do that crosses port boundaries.  (None of this is CML2,
BTW; I'm now addressing problems that are common to CML1 as well.)

What is the right procedure for doing changes like this?  Is "don't
touch that tree" a permanent condition, or am I going to get a chance
to clean up the global CONFIG_ namespace after your next merge-down?

Could I ask you to audit your tree and change the prefix on any 
CONFIG_ symbols that are private over there?  This would make life 
easier for my auditing tools (kxref and Stephen Cole's ach script).

That's the main thing I'm after right now -- I want to cut down on
the false positives in my orphaned-symbol reports so that the actual
bugs will stand out.
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

"They that can give up essential liberty to obtain a little temporary 
safety deserve neither liberty nor safety."
	-- Benjamin Franklin, Historical Review of Pennsylvania, 1759.




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Subject: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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On Thu, Apr 19, 2001 at 11:00:09PM -0400, Eric S. Raymond wrote:
> What is the right procedure for doing changes like this?  Is "don't
> touch that tree" a permanent condition, or am I going to get a chance
> to clean up the global CONFIG_ namespace after your next merge-down?

Our current status is that we've got a patch with Alan that's been sitting
in his tree for a while (things got trickier than he expected and he
hasn't been able to merge that upstream to Linus yet).  Meanwhile we've
carried on development as normal.  So even after the patches in Alan's
tree land, we've still got a fair hunk of changes to go in.

My preference would be for you to fetch our tree 

cvs -d :pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc login
[no password]

cvs -d :pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc co linux

and submit patches to us, which will get to Linus in the fullness of time.
I'm aware this might not be terribly satisfactory for you, but we're
doing our best not to lose our way amid the churn of development right
now and having patches which haven't followed a progression through
us makes that significantly harder.

> Could I ask you to audit your tree and change the prefix on any 
> CONFIG_ symbols that are private over there?  This would make life 
> easier for my auditing tools (kxref and Stephen Cole's ach script).

I don't think we have any of those.  We certainly have symbols which are
defined for symmetry and may not actually be used yet (CONFIG_PA11 might not
be, perhaps).  But that's what happens when you're developing software :-)





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From: james rich <james.rich@m.cc.utah.edu>
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Subject: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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On Thu, 19 Apr 2001, Matthew Wilcox wrote:

> On Thu, Apr 19, 2001 at 11:00:09PM -0400, Eric S. Raymond wrote:
> > What is the right procedure for doing changes like this?  Is "don't
> > touch that tree" a permanent condition, or am I going to get a chance
> > to clean up the global CONFIG_ namespace after your next merge-down?
> 

[snip]

> My preference would be for you to fetch our tree 

> and submit patches to us, which will get to Linus in the fullness of time.

Truly this is not meant to be negative - don't take it as such.

Doesn't this seem a little like the problems occurring with lvm right now?
A separate tree maintained with the maintainers not wanting others
submitting patches that conflict with their particular tree?  It seems
that any project should be able to submit any patch against The One True
Tree: Linus' tree.

James Rich
james.rich@m.cc.utah.edu





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From: willy@ldl.fc.hp.com (Matthew Wilcox)
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Subject: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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Xref: news.gmane.org gmane.linux.ports.parisc:10824

On Thu, Apr 19, 2001 at 10:07:22PM -0600, james rich wrote:
> Doesn't this seem a little like the problems occurring with lvm right now?
> A separate tree maintained with the maintainers not wanting others
> submitting patches that conflict with their particular tree?  It seems
> that any project should be able to submit any patch against The One True
> Tree: Linus' tree.

every single architecture has their own development tree.  the pa project
has not been running as long as the other ports, and has a large amount of
development going on.  i count 28 commits for april (so far), 75 commits
for march, 187 for february and 112 for january (to the kernel tree, other
parts of the port also have commit messages).  linus would go insane if
we sent him every single one of those patches individually.  and we'd
go insane trying to keep up with what he'd taken and what he'd dropped.

until you've actually tried doing this, please don't attempt to criticise.





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From: "Albert D. Cahalan" <acahalan@cs.uml.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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Cc: james.rich@m.cc.utah.edu (james rich),
	willy@ldl.fc.hp.com (Matthew Wilcox),
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Matthew Wilcox writes:
> On Thu, Apr 19, 2001 at 10:07:22PM -0600, james rich wrote:

>> Doesn't this seem a little like the problems occurring with lvm right now?
>> A separate tree maintained with the maintainers not wanting others
>> submitting patches that conflict with their particular tree?  It seems
>> that any project should be able to submit any patch against The One True
>> Tree: Linus' tree.
>
> every single architecture has their own development tree.

This sucks for users of that architecture. Also, though not
applicable to PA-RISC, it sucks for sub-architecture porters.
(by sub-architecture I mean: Mac, PReP, PowerCore, BeBox, etc.)

It's hard enough deciding between Linus and Alan. I'm not at all
happy trying to pick through obscure CVS and BitKeeper trees that
might not be up-to-data with the latest mainstream bug fixes.

> the pa project
> has not been running as long as the other ports, and has a large amount of
> development going on.  i count 28 commits for april (so far), 75 commits
> for march, 187 for february and 112 for january (to the kernel tree, other
> parts of the port also have commit messages).  linus would go insane if
> we sent him every single one of those patches individually.  and we'd
> go insane trying to keep up with what he'd taken and what he'd dropped.
> 
> until you've actually tried doing this, please don't attempt to criticise.

Have _you_ tried? If I recall correctly, Linus spoke out against the
PowerPC people doing the exact same thing. So unless you get told to
quit annoying him with patches, sending them is the safe bet.

Well here we go. It's about IrDA though, not PowerPC. Read it!
http://lwn.net/2000/1109/a/lt-IrDA.php3





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On Fri, 20 Apr 2001, Albert D. Cahalan wrote:

> This sucks for users of that architecture. Also, though not
> applicable to PA-RISC, it sucks for sub-architecture porters.
> (by sub-architecture I mean: Mac, PReP, PowerCore, BeBox, etc.)

As you said it so eloquently a few paragraphs down:

	"send patches!"

cheers,

Rik
--
Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...

		http://www.surriel.com/
http://www.conectiva.com/	http://distro.conectiva.com.br/





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To: james rich <james.rich@m.cc.utah.edu>
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james.rich@m.cc.utah.edu said:
>  Doesn't this seem a little like the problems occurring with lvm right
> now? A separate tree maintained with the maintainers not wanting
> others submitting patches that conflict with their particular tree?
> It seems that any project should be able to submit any patch against
> The One True Tree: Linus' tree. 

Of course they can. Linus does apply them too. People are asking nicely 
that ESR not do so in this case, because merges are being planned. 

The contents of drivers/mtd/ are in the same situation. For some reason, I
felt it inappropriate to give every patch at every stage of development to
Linus for inclusion in the 2.4.0-test and 2.4.[123] kernels. Now I'm vaguely
happy with it all and it's stable, I'm working on cleaning up some of the 
cosmetics and breaking it up into digestible patches.

Doing primary development in CVS seems to work OK for me, and allows me to 
continue development without destabilising the One True Tree. During such 
times, it's useful to have a branch for the code which is in the One True 
Tree, so urgent fixes can be merged, and the diff against the One True Tree 
after each release has something to diff against to catch patches where 
people didn't even bother to Cc the maintainer.

I believe people were _told_ to hold off until 2.4.5-ish, or when the tree
became stable. Violent imagery was used to reinforce this instruction.
That being the case, how about holding the config changes back until after 
everyone else who's been waiting has merged their pending changes?

--
dwmw2






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Alan Cox <alan@lxorguk.ukuu.org.uk>:
> > What is the right procedure for doing changes like this?  Is "don't
> > touch that tree" a permanent condition, or am I going to get a chance
> > to clean up the global CONFIG_ namespace after your next merge-down?
> 
> Feeding arch related stuff to the architecture maintainers.

I shall attempt it.

> > That's the main thing I'm after right now -- I want to cut down on
> > the false positives in my orphaned-symbol reports so that the actual
> > bugs will stand out.
> 
> Teach it to read a 'symbolstoignore' file.

Someone else has already pointed out that this is not a solution that will
scale well.  It would substitute a continuing management headache for the
cleanup that's really needed.  In fact I'm reluctant to do this even for 
cases where it's clearly legitimate (CONFIG_BOOM, CONFIG_BOGUS :-)) partly
because later on it might provide an excuse for people not to do the cleanup.

> Part of the problem you are hitting right now is that most
> architectures are not yet fully in sync with 2.4 nor likely to all
> be for another few iterations.

Understood.  I'll do what I can in the architecture-independent code, then.
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

"Boys who own legal firearms have much lower rates of delinquency and
drug use and are even slightly less delinquent than nonowners of guns."
	-- U.S. Department of Justice, National Institute of
	   Justice, Office of Juvenile Justice and Delinquency Prevention,
	   NCJ-143454, "Urban Delinquency and Substance Abuse," August 1995.




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> What is the right procedure for doing changes like this?  Is "don't
> touch that tree" a permanent condition, or am I going to get a chance
> to clean up the global CONFIG_ namespace after your next merge-down?

Feeding arch related stuff to the architecture maintainers.

> That's the main thing I'm after right now -- I want to cut down on
> the false positives in my orphaned-symbol reports so that the actual
> bugs will stand out.

Teach it to read a 'symbolstoignore' file.

Part of the problem you are hitting right now is that most architectures are
not yet fully in sync with 2.4 nor likely to all be for another few iterations.





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> > we sent him every single one of those patches individually.  and we'd
> > go insane trying to keep up with what he'd taken and what he'd dropped.
> > 
> > until you've actually tried doing this, please don't attempt to criticise.
> 
> Have _you_ tried? If I recall correctly, Linus spoke out against the

I have for one. Its definitely the wrong approach to bomb Linus with patches
when doing the merge of an architecture. All the architecture folk with in
their own trees for good reason.

Once the code is in a fit state to merge (ie actually works well with the new
2.4.x stuff and 2.4.x core stops shifting around) then the merge can get done
piece by piece.





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Alan Cox <alan@lxorguk.ukuu.org.uk>:
> I have for one. Its definitely the wrong approach to bomb Linus with patches
> when doing the merge of an architecture. All the architecture folk with in
> their own trees for good reason.

On the other hand, Linus has objected to the One-Big-Patch approach in
the past with respect to things like the networking and VM code.  How
are people to know what the right thing is?
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

Love your country, but never trust its government.
	-- Robert A. Heinlein.




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Alan Cox <alan@lxorguk.ukuu.org.uk>:
> > Alan Cox <alan@lxorguk.ukuu.org.uk>:
> > > I have for one. Its definitely the wrong approach to bomb Linus
> > > with patches when doing the merge of an architecture. All the
> > > architecture folk with in their own trees for good reason.
> > 
> > On the other hand, Linus has objected to the One-Big-Patch approach in
> > the past with respect to things like the networking and VM code.  How
> > are people to know what the right thing is?
> 
> Who said anything about one big patch ?  Just because you have a lot
> of differences doesnt mean you send Linus one giant splat of code. I
> don't send Linus -ac for example.

OK, so maybe I'm being stupid.  But the implication of this talk of separate
port trees and architecture merges is that these guys periodically send big
resync patches to you and Linus.

If that's not what's going on, what is?
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

Never could an increase of comfort or security be a sufficient good to be
bought at the price of liberty.
	-- Hillaire Belloc




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> Alan Cox <alan@lxorguk.ukuu.org.uk>:
> > I have for one. Its definitely the wrong approach to bomb Linus with patches
> > when doing the merge of an architecture. All the architecture folk with in
> > their own trees for good reason.
> 
> On the other hand, Linus has objected to the One-Big-Patch approach in
> the past with respect to things like the networking and VM code.  How
> are people to know what the right thing is?

Who said anything about one big patch ?

Just because you have a lot of differences doesnt mean you send Linus one giant
splat of code. I don't send Linus -ac for example.

Alan







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> OK, so maybe I'm being stupid.  But the implication of this talk of separate
> port trees and architecture merges is that these guys periodically send big
> resync patches to you and Linus.
> 
> If that's not what's going on, what is?

People send batches of small fixes to Linus or to me. So for example the S/390
folks send me things like 'fix the mm layer to match the changes in 2.4.3'
and 'Update the DASD storage driver'. Each of which fixes one thing or one
set of things and is easy to check on its own





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Alan Cox <alan@lxorguk.ukuu.org.uk>:
> People send batches of small fixes to Linus or to me. So for example
> the S/390 folks send me things like 'fix the mm layer to match the
> changes in 2.4.3' and 'Update the DASD storage driver'. Each of
> which fixes one thing or one set of things and is easy to check on
> its own

I'll continue asking stupid questions, then.  Like, under this system how
can either you or the port maintainers maintain a good representation of 
how far out of sync they are with the main tree?

The implied workflow (developers in general, up to port maintainers,
up to you and Linus) makes both technological and sociological sense.
It kind of reminds me of Anglo-Norman feudalism post-1066 ("No lord
without land, no land without a lord.").

There are a couple of funny edge cases that it doesn't seem to handle
well, though.  One is the kind I'm bumping into right now, where
somebody legitimately needs to make small (almost trivial) changes
scattered all through the tree.

Another is the case where a piece of code that needs to be changed doesn't
have an active maintainer for a third party like me to go to.

What's the neighborly way to deal with these?
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

"The best we can hope for concerning the people at large is that they be
properly armed."
        -- Alexander Hamilton, The Federalist Papers at 184-188




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> I'll continue asking stupid questions, then.  Like, under this system how
> can either you or the port maintainers maintain a good representation of 
> how far out of sync they are with the main tree?

diff and read the output.

[bizzare sociopolitical mumble deleted]

> well, though.  One is the kind I'm bumping into right now, where
> somebody legitimately needs to make small (almost trivial) changes
> scattered all through the tree.

Yep. But such changes are rare. Or should be. 

> Another is the case where a piece of code that needs to be changed doesn't
> have an active maintainer for a third party like me to go to.
> What's the neighborly way to deal with these?

If I get patches for stuff that doesnt seem to have a maintainer I apply them.
On the odd occasion a scream is heard in the distance it means I now know
there is an active maintainer.







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Alan Cox <alan@lxorguk.ukuu.org.uk>:
> > well, though.  One is the kind I'm bumping into right now, where
> > somebody legitimately needs to make small (almost trivial) changes
> > scattered all through the tree.
> 
> Yep. But such changes are rare. Or should be. 

Knowing that doesn't help me much, since I'm trying to fix up a global
namespace that touches everybody :-(.
 
> If I get patches for stuff that doesnt seem to have a maintainer I
> apply them.  On the odd occasion a scream is heard in the distance
> it means I now know there is an active maintainer.

All right then.  I'm going to send you a bunch of dead-symbol cleanup
patches.  I'll try to stay in the mainline code and out of the port
trees.  Would you please do me the kindness of telling me which ones
can go in and which ones you think have to go through maintainers?

You should have received one such patch already, fixes for two
documentation files.
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

Sometimes the law defends plunder and participates in it. Sometimes
the law places the whole apparatus of judges, police, prisons and
gendarmes at the service of the plunderers, and treats the victim --
when he defends himself -- as a criminal.
	-- Frederic Bastiat, "The Law"




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On Fri, Apr 20, 2001 at 10:59:34AM -0400, Eric S. Raymond wrote:
> Alan Cox <alan@lxorguk.ukuu.org.uk>:
> > > well, though.  One is the kind I'm bumping into right now, where
> > > somebody legitimately needs to make small (almost trivial) changes
> > > scattered all through the tree.
> > 
> > Yep. But such changes are rare. Or should be. 
> 
> Knowing that doesn't help me much, since I'm trying to fix up a global
> namespace that touches everybody :-(.

Which does boil down to having to work with trees other than Linus or
Alans.  Remember, the official tree is not always the up-to-date tree,
or in the case of other arches, the most relevant tree.  But if you send
something off to a maintainer, there's a good chance (if they're still active)
they'll do what you ask, and it'll get to Linus/Alan the next time they sync.
As long as the problem gets fixed, it shouldn't be as important if it's fixed
in everyones tree right now, or in a release or two.  If it's some sort of
huge bug it just might get fixed sooner.

-- 
Tom Rini (TR1265)
http://gate.crashing.org/~trini/




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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone 
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Tom Rini wrote:
> Which does boil down to having to work with trees other than Linus or
> Alans.  Remember, the official tree is not always the up-to-date tree,
> or in the case of other arches, the most relevant tree.

Yep.  You could even look at Linus as simply the x86 port maintainer :)

Except for alpha and x86, AFAIK, most people wind up going through
arch-specific channels to get their kernels...

-- 
Jeff Garzik      | The difference between America and England is that
Building 1024    | the English think 100 miles is a long distance and
MandrakeSoft     | the Americans think 100 years is a long time.
                 |      (random fortune)




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Jeff Garzik [jgarzik@mandrakesoft.com] wrote:
> Tom Rini wrote:
> > Which does boil down to having to work with trees other than Linus or
> > Alans.  Remember, the official tree is not always the up-to-date tree,
> > or in the case of other arches, the most relevant tree.
>=20
> Yep.  You could even look at Linus as simply the x86 port maintainer :)
>=20
> Except for alpha and x86, AFAIK, most people wind up going through
> arch-specific channels to get their kernels...

This may be a dumb question, but is there some place where the arch
maintainers are listed?  Where the arch-specific trees are kept?  Where
would I go to get the latest set of relevant patches for alpha?

Grepping the Documentation/ directory for "alpha" I see nothing
relevant.  IMHO this should all be listend in one place.  Maybe
Documentation/Arch-Maintainers.txt.

Cheers,
-- Bob

Bob McElrath (rsmcelrath@students.wisc.edu)=20
Univ. of Wisconsin at Madison, Department of Physics

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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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On Fri, Apr 20, 2001 at 11:15:12AM -0500, Bob McElrath wrote:
> This may be a dumb question, but is there some place where the arch
> maintainers are listed?  Where the arch-specific trees are kept?  Where
> would I go to get the latest set of relevant patches for alpha?

http://www.kernel.org/ has a list of architecture websites.  Also the
CREDITS / MAINTAINERS files tend to list the people who are involved.

-- 
Revolutions do not require corporate support.




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] kernel panic using cpio from cdrom to disk.
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On Sat, Apr 14, 2001 at 12:52:52AM -0600, Ryan Bradetich wrote:
> Hello parisc-linux hackers,
> 
> A bug (#105) was discovered today reguarding cpio'ing an iso image from
> the cdrom to the disk.  This was a stupid error and I have a quick patch
> for this.  But this leads to my next question....  I am getting a kernel
> panic when perfoming the cpio from the cdrom to the disk.  I am trying
> to verify if their in another problem with the ccio code, or if this is
> a problem witht the scsi driver itself.  Can someone else try it on a
> non-ccio machine and see if fails for them also.  [Note:  The cdrom
> content should not matter, in this case I have an i386 debian disk I 
> was cpio'ing over because it was handy.]

I just tried (with a suse install cd), on my B180, using the 53c710 i/f,
without any problems.

> Disk to disk transfers seem to work fine under ccio...
> 
> Thanks,
> 
> - Ryan
> 
> 
> vega:/tmp# mount /dev/sr0 /cdrom
> ISO 9660 Extensions: RRIP_1991A
> vega:/tmp# find /cdrom | cpio -pm /tmp   
> scsi1: Unexpected Illegal Instruction, script[0002]
> scsi1: script[fffffffe]: 00000000 00000000 60000200 00000000 7c1bef00 00000000 41040000 00182448
> scsi1: Failed to handle interrupt.  Failing commands and resetting SCSI bus and chip
> scsi1: istat = 00, sstat0 = 00, sstat1 = 00, dstat = 00
> scsi1: dsp = 00182008 (script[0x0802]), dsps = 7b255263, target = 0
> scsi1: Failing command for ID2

What appears to have happened here is that the driver tried to start a
command on scsi ID 2, which it does by writing 00182000 in to DSP in this
case.  The scsi chip then picks up an instruction from that address and
and decides it is not a valid instruction.  The memory is correct though,
reported as 60000200 00000000 above.  That data is static in memory from
driver startup - it doesn't get modified on the fly.  The memory is
allocated at startup via pci_alloc_consistant().

I'd guess that the iommu entry for the scsi chip to access that consistent
memory got trashed.

> Dumping Stack from 1027e000 to 1027e2c0:

Errors similar to that above from the scsi driver don't usually take the
machine out, so I'd guess something else went wrong also.

Richard





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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone 
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Bob McElrath wrote:
> 
> Jeff Garzik [jgarzik@mandrakesoft.com] wrote:
> > Tom Rini wrote:
> > > Which does boil down to having to work with trees other than Linus or
> > > Alans.  Remember, the official tree is not always the up-to-date tree,
> > > or in the case of other arches, the most relevant tree.
> >
> > Yep.  You could even look at Linus as simply the x86 port maintainer :)
> >
> > Except for alpha and x86, AFAIK, most people wind up going through
> > arch-specific channels to get their kernels...
> 
> This may be a dumb question, but is there some place where the arch
> maintainers are listed?  Where the arch-specific trees are kept?  Where
> would I go to get the latest set of relevant patches for alpha?

As I noted in the e-mail to which you replied, there is no separate
alpha tree nor arch-specific channel for alpha kernels.  Generally fixes
to the Alpha tree appear quickly and get merged quickly, and the tree
stays in sync quite well.  Watch linux-kernel or Alan Cox's patchkit for
Alpha fixes that may be in transmit to Linus.

There are of course RedHat's alpha distro, and various mailing lists on
http://www.alphalinux.org/

-- 
Jeff Garzik      | The difference between America and England is that
Building 1024    | the English think 100 miles is a long distance and
MandrakeSoft     | the Americans think 100 years is a long time.
                 |      (random fortune)




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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is
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On Fri, 20 Apr 2001, Tom Rini wrote:

> On Fri, Apr 20, 2001 at 10:59:34AM -0400, Eric S. Raymond wrote:
> > Alan Cox <alan@lxorguk.ukuu.org.uk>:
> > > > well, though.  One is the kind I'm bumping into right now, where
> > > > somebody legitimately needs to make small (almost trivial) changes
> > > > scattered all through the tree.
> > >
> > > Yep. But such changes are rare. Or should be.
> >
> > Knowing that doesn't help me much, since I'm trying to fix up a global
> > namespace that touches everybody :-(.
>
> Which does boil down to having to work with trees other than Linus or
> Alans.  Remember, the official tree is not always the up-to-date tree,
> or in the case of other arches, the most relevant tree.  But if you send
> something off to a maintainer, there's a good chance (if they're still active)
> they'll do what you ask, and it'll get to Linus/Alan the next time they sync.
> As long as the problem gets fixed, it shouldn't be as important if it's fixed
> in everyones tree right now, or in a release or two.  If it's some sort of
> huge bug it just might get fixed sooner.

Guys,

There is kind of a ridiculous situation here where people want to withhold
their own changes in their own trees for all good reasons until it is mature
and stable enough to be fed upstream in the appropriate way, while insisting
for Linus' tree to remain incomplete and inconsistent.  And we're not
talking about deep architectural changes here -- only about configure
symbols and help text.

Why not having everybody's tree consistent with themselves and have whatever
CONFIGURE_* symbols and help text be merged along with the very code it
refers to?  It's worthless to have config symbols be merged into Linus' or
Alan's tree if the code isn't there (yet).  It simply makes no sense.

This might shift some of the namespace consistency work to architecture
maintainers (which is a good thing IMHO) and establish the basis for yet a
more sanitized kernel.org tree at all times for before and after any
further patches are merged.

I'm myself maintainer of a subarchitecture and removing currently
unreferenced SA1100 config symbols from the official Linux tree would
probably give me a one-time effort to bring them back in my tree but this is
certainly for a saner code/namespace distribution in general.  Why should
the symbols I maintain remain there if I'm not ready yet to sync up the code
they refer to?

Hey this is only CONFIG_ symbols after all.  If they get removed now, they
will only reappear _with_ the code they refer to eventually when it'll get
merged.


Nicolas





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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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Xref: news.gmane.org gmane.linux.ports.parisc:10845

Nicolas Pitre <nico@cam.org>:
> Why not having everybody's tree consistent with themselves and have whatever
> CONFIGURE_* symbols and help text be merged along with the very code it
> refers to?  It's worthless to have config symbols be merged into Linus' or
> Alan's tree if the code isn't there (yet).  It simply makes no sense.

And now it has a cost, too.  It makes finding real bugs more difficult.
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

Every election is a sort of advance auction sale of stolen goods. 
	-- H.L. Mencken 




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel panic using cpio from cdrom to disk.
Date: Fri, 20 Apr 2001 17:57:49 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:10846

This is interesting, my tests worked fine, but when I tried to reboot
(typed 'init 6'), it blew up:

INIT: Switching to runlevel: 6
I


Dumping Stack from 1027a000 to 1027a2c0:
a000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a020 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a040 00000000 00000000 00000000 00286000 00000000 00000000 00000000 00000000
a060 00000000 00000000 00000000 0010ca78 00000000 00000000 00000000 00000000
a080 00000008 00078578 0010ca78 00004800 0028d000 0027e000 fffbe000 00105824
a0a0 ffffffff 0008ab50 0008ae50 0008c030 00000000 00000000 00083f50 00000000
a0c0 00000000 0000c5f0 faf00790 ffd05800 00000060 00000000 00000000 00000060
a0e0 7efefeff 00064040 ffd05800 f0102400 00000000 ffd05800 1027a2c0 00000007
a100 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a120 00000001 00000000 00000002 10149ab0 00000000 00000000 00000000 00000000
a140 1007c000 27eb60c0 102d8000 00000000 1028c060 102f7810 102f4010 10272010
a160 00000001 10290010 102f7810 10138610 10272010 102d6134 102d6134 00000000
a180 27ebd000 1028c600 00000000 00000002 00000000 102a0e58 0004000e 0000004d
a1a0 102f4810 27ebd000 1028c600 10149998 cccccccd 00000000 00000000 cccccccd
a1c0 0000000a 00000200 102456e0 00000007 10319cc0 1028aaa8 0004000e 27f41120
a1e0 ffffff05 00000001 10272010 10138778 102f7810 1028aaa8 00000000 00000000
a200 000001d0 000001d0 00000000 000001d0 00000000 00000000 00000000 00000000
a220 000001d0 000001d0 0010caa8 0010caa8 1007c588 00000000 00000000 0027a1c8
a240 00286000 00000004 00080e60 00000000 0027a080 f0083ae8 00008000 0027a160
a260 03b0008a 00000000 00000000 0027a1c8 000acbf8 f0083ae8 f0180fe3 0027a240
a280 ffd05000 0027a268 00000003 0027a270 00000000 f004d7cc 0027a198 0027a240
a2a0 00000014 0027a240 000012d0 10106744 03b0008a 00000001 0027e000 00008000

Unexpected Interruption!: Code=0 regs=1027a080 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000000000000000000001000
r0-3     00000000 00078578 0010ca78 00004800
r4-7     0028d000 0027e000 fffbe000 00105824
r8-11    ffffffff 0008ab50 0008ae50 0008c030
r12-15   00000000 00000000 00083f50 00000000
r16-19   00000000 0000c5f0 faf00790 ffd05800
r20-23   00000060 00000000 00000000 00000060
r24-27   7efefeff 00064040 ffd05800 f0102400
r28-31   00000000 ffd05800 1027a2c0 00000007
sr0-3    000001d0 000001d0 00000000 000001d0
sr4-7    00000000 00000000 00000000 00000000

IASQ: 000001d0 000001d0 IAOQ: 0010caa8 0010caa8
 IIR: 00080e60    ISR: 00000000  IOR: 0027a080
ORIG_R28: 00000000


Like Ryans crash, PSW has only the Q bit set - data translation is
turned off.  I guess that means the IAOQ values are real addresses, so I
added 0x10000000 before looking them up in System.map.  In my case, it
died on the "rsm 8,r0" under os_hpmc_5 in arch/parisc/kernel/hpmc.S.

Richard



On Sat, Apr 14, 2001 at 12:52:52AM -0600, Ryan Bradetich wrote:
> Hello parisc-linux hackers,
> 
> A bug (#105) was discovered today reguarding cpio'ing an iso image from
> the cdrom to the disk.  This was a stupid error and I have a quick patch
> for this.  But this leads to my next question....  I am getting a kernel
> panic when perfoming the cpio from the cdrom to the disk.  I am trying
> to verify if their in another problem with the ccio code, or if this is
> a problem witht the scsi driver itself.  Can someone else try it on a
> non-ccio machine and see if fails for them also.  [Note:  The cdrom
> content should not matter, in this case I have an i386 debian disk I 
> was cpio'ing over because it was handy.]
> 
> Disk to disk transfers seem to work fine under ccio...
> 
> Thanks,
> 
> - Ryan
> 
> 
> vega:/tmp# mount /dev/sr0 /cdrom
> ISO 9660 Extensions: RRIP_1991A
> vega:/tmp# find /cdrom | cpio -pm /tmp   
> scsi1: Unexpected Illegal Instruction, script[0002]
> scsi1: script[fffffffe]: 00000000 00000000 60000200 00000000 7c1bef00 00000000 41040000 00182448
> scsi1: Failed to handle interrupt.  Failing commands and resetting SCSI bus and chip
> scsi1: istat = 00, sstat0 = 00, sstat1 = 00, dstat = 00
> scsi1: dsp = 00182008 (script[0x0802]), dsps = 7b255263, target = 0
> scsi1: Failing command for ID2
> 
> 
> 
> Dumping Stack from 1027e000 to 1027e2c0:
> e000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> e020 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> e040 00000000 00000000 00000000 0028a000 00000000 00000000 00000000 00000000
> e060 00000000 00000000 00000000 0010c830 00000000 00000000 00000000 00000000
> e080 00000008 fffb1000 0010c830 00008000 00291000 00282000 0010c8a8 00105024
> e0a0 00282000 00008000 fffa0000 e0000000 20530a40 0000006c 00000002 0000001f
> e0c0 20530a40 102fc010 1012a4a0 ffd05800 00000060 00000000 00000000 00000060
> e0e0 0027e548 00000003 ffd05800 f0102400 00000000 ffd05800 1027e2c0 00000007
> e100 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> e120 00000001 fe4917e0 00000002 1014aee0 ef56b2f6 f9bf8075 dedbd0be f309b5b9
> e140 10fec000 3fc900c0 102dc000 00000000 10290064 102f9010 102fc010 10276010
> e160 102f8810 00000001 10294010 1013948c 102f8810 102d9d08 102d9d08 102d9c80
> e180 3fc99000 1029060c 00000000 00000002 00000000 102a46c0 0004000e 0000004d
> e1a0 102f9010 3fc99000 1029060c 1014adc4 cccccccd 00000030 00000000 cccccccd
> e1c0 00000001 00000004 3fe00000 00000000 412e8480 00000000 3fc9d140 0000004d
> e1e0 ffffff05 102fc010 00000001 101395f4 3fccf400 1028ecc8 00000000 00000000
> e200 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> e220 00000000 00000000 0010c754 0010c758 ffffffff 00000000 00000000 00000000
> e240 00000000 00000008 081a025c 10240041 4c130d44 00000000 00000000 00000000
> e260 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> e280 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> e2a0 00000000 00000000 00000000 10106744 00000000 00000000 00000000 00000000
> 
> Unexpected Interruption!: Code=0 regs=1027e080 (Addr=00000000)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000000000000000000001000
> r0-3     00000000 fffb1000 0010c830 00008000
> r4-7     00291000 00282000 0010c8a8 00105024
> r8-11    00282000 00008000 fffa0000 e0000000
> r12-15   20530a40 0000006c 00000002 0000001f
> r16-19   20530a40 102fc010 1012a4a0 ffd05800
> r20-23   00000060 00000000 00000000 00000060
> r24-27   0027e548 00000003 ffd05800 f0102400
> r28-31   00000000 ffd05800 1027e2c0 00000007
> sr0-3    00000000 00000000 00000000 00000000
> sr4-7    00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 0010c754 0010c758
>  IIR: 081a025c    ISR: 10240041  IOR: 4c130d44
> ORIG_R28: 00000000
> 
> 
> -- 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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Subject: [parisc-linux] Problems with glibc
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Hi,

while trying to compile the current glibc snapshot from the puffin-cvs, make
segfaults:

make[2]: Entering directory `/mnt/lfs/usr/src/glibc/sunrpc'
/mnt/lfs/usr/src/glibc-build/elf/ld.so.1 --library-path
/mnt/lfs/usr/src/glibc-build:/mnt/lfs/usr/src/glibc-build/math:/mnt/lfs/usr/src/glibc-build/elf:/mnt/lfs/usr/src/glibc-build/dlfcn:/mnt/lfs/usr/src/glibc-build/nss:/mnt/lfs/usr/src/glibc-build/nis:/mnt/lfs/usr/src/glibc-build/rt:/mnt/lfs/usr/src/glibc-build/resolv:/mnt/lfs/usr/src/glibc-build/crypt:/mnt/lfs/usr/src/glibc-build/linuxthreads
/mnt/lfs/usr/src/glibc-build/sunrpc/rpcgen -Y `x=\`gcc
-print-file-name=cpp\`; test x$x = xcpp && x=\`which cpp\`; echo $x | sed
's,/cpp$,,'` -c rpcsvc/bootparam_prot.x -o
/mnt/lfs/usr/src/glibc-build/sunrpc/xbootparam_prot.T
make[2]: *** [/mnt/lfs/usr/src/glibc-build/sunrpc/xbootparam_prot.stmp]
Segmentation fault
make[2]: Leaving directory `/mnt/lfs/usr/src/glibc/sunrpc'
make[1]: *** [sunrpc/others] Error 2
make[1]: Leaving directory `/mnt/lfs/usr/src/glibc'
make: *** [all] Error 2

Has anyone ever experienced a similar problem? This segfault is
reproducable and it's the first time that happened. gcc did compile
correct, the same with the kernel itself.
Therefore I'd guess that glibc is at fault here.
This happened while building the glibc on the hppa box (with the
baseplus-20010404 nfsroot).
Building the cross-compiler toolchain which does include building glibc
was successful though.

Any ideas?

bye,
 andreas





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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is 
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matthew@wil.cx said:
> http://www.kernel.org/ has a list of architecture websites.  Also the
> CREDITS / MAINTAINERS files tend to list the people who are involved. 

Except it's restricted to processor ports, which would leave you not knowing 
about UML.

				Jeff






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>>>>> "Andreas" == Andreas Thienemann <andreas@thienemann.net> writes:

Andreas> Has anyone ever experienced a similar problem? This segfault
Andreas> is reproducable and it's the first time that happened. gcc
Andreas> did compile correct, the same with the kernel itself.
Andreas> Therefore I'd guess that glibc is at fault here.  This
Andreas> happened while building the glibc on the hppa box (with the
Andreas> baseplus-20010404 nfsroot).  Building the cross-compiler
Andreas> toolchain which does include building glibc was successful
Andreas> though.

You don't see it when cross compiling because this is only run when
building natively. The sunrpc stuff is the first place where the newly
generated dynamic linker is exercised, your cross compiled binaries
are unlike to work either. The can be either a glibc (most likely
ld.so) or due to a change in syscall or compiler ABI behavior.

Jes




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Richard Hirst wrote:
> This is interesting, my tests worked fine, but when I tried to reboot
> (typed 'init 6'), it blew up:

was in-mem data being sync'd to disk?

> Like Ryans crash, PSW has only the Q bit set - data translation is
> turned off.  I guess that means the IAOQ values are real addresses, so I
> added 0x10000000 before looking them up in System.map.  In my case, it
> died on the "rsm 8,r0" under os_hpmc_5 in arch/parisc/kernel/hpmc.S.

That would suggest two things:
1) the box HPMC'd in both cases - look at PIM dump for more info
2) we have a bug in our HPMC handler that PDC tries to call (in real mode).
   Perhaps one of the asm gods (or even demi-gods :^) could look at
   hpmc.S and the path to get there.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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On Fri, Apr 20, 2001 at 12:35:12PM -0400, Nicolas Pitre wrote:

> There is kind of a ridiculous situation here where people want to withhold
> their own changes in their own trees for all good reasons until it is mature
> and stable enough to be fed upstream in the appropriate way, while insisting
> for Linus' tree to remain incomplete and inconsistent.  And we're not
> talking about deep architectural changes here -- only about configure
> symbols and help text.

The answer is simple, noise.

> Why not having everybody's tree consistent with themselves and have whatever
> CONFIGURE_* symbols and help text be merged along with the very code it
> refers to?  It's worthless to have config symbols be merged into Linus' or
> Alan's tree if the code isn't there (yet).  It simply makes no sense.

Well, this depends a lot on a) The project to be merged (arch, mtd, whatever)
and b) how far something has gotten in being merged someplace else, and of
course c) the maintainer(s).  Whatever the exact case, and in general, it 
should be handled via the maintainer.  Why? They maintain the code.

-- 
Tom Rini (TR1265)
http://gate.crashing.org/~trini/




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On Fri, Apr 20, 2001 at 02:00:00PM -0500, Jeff Dike wrote:
> matthew@wil.cx said:
> > http://www.kernel.org/ has a list of architecture websites.  Also the
> > CREDITS / MAINTAINERS files tend to list the people who are involved. 
> 
> Except it's restricted to processor ports, which would leave you not knowing 
> about UML.

Have you tried mailing webmaster@kernel.org and asking to be added?

-- 
Revolutions do not require corporate support.




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From: Nicolas Pitre <nico@cam.org>
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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is
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On Fri, 20 Apr 2001, Tom Rini wrote:

> On Fri, Apr 20, 2001 at 12:35:12PM -0400, Nicolas Pitre wrote:
>
> > Why not having everybody's tree consistent with themselves and have whatever
> > CONFIGURE_* symbols and help text be merged along with the very code it
> > refers to?  It's worthless to have config symbols be merged into Linus' or
> > Alan's tree if the code isn't there (yet).  It simply makes no sense.
>
> Well, this depends a lot on a) The project to be merged (arch, mtd, whatever)
> and b) how far something has gotten in being merged someplace else, and of
> course c) the maintainer(s).  Whatever the exact case, and in general, it
> should be handled via the maintainer.  Why? They maintain the code.

Therefore it's the maintainer's job to submit coherent patches and accept to
see inconsistent CONFIG_* references be removed from the official tree until
further patch submission is due.  It's only a question of discipline.
Otherwise how can you distinguish between dead wood which must be removed
and potentially valid symbols referring to code existing only in a remote
tree?


Nicolas





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From: Jes Sorensen <jes@linuxcare.com>
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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is  anyone paying attention?
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>>>>> "Jeff" == Jeff Dike <jdike@karaya.com> writes:

Jeff> matthew@wil.cx said:
>> http://www.kernel.org/ has a list of architecture websites.  Also
>> the CREDITS / MAINTAINERS files tend to list the people who are
>> involved.

Jeff> Except it's restricted to processor ports, which would leave you
Jeff> not knowing about UML.

I'd be highly surprised if they said no to adding UML to the list if
you mailed them a request to update the page.

Jes




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From: Russell King <rmk@arm.linux.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
Date: Fri, 20 Apr 2001 19:50:04 +0100
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On Fri, Apr 20, 2001 at 10:59:34AM -0400, Eric S. Raymond wrote:
> All right then.  I'm going to send you a bunch of dead-symbol cleanup
> patches.  I'll try to stay in the mainline code and out of the port
> trees.  Would you please do me the kindness of telling me which ones
> can go in and which ones you think have to go through maintainers?

>From my point of view, I'd be happy if stuff that touched the ARM tree
directly was sent separately from the other architectures, and actually
was copied to me.  I'm sure that the other architecture maintainers
feel the same way, but I'll let them comment separately.

Why?  Well:

- Firstly, I can apply your patch directly to my tree without having
  to bother about the effects in the other architecture trees.  (hence
  when I resync with Linus or Alan, I don't have to go around fixing
  up rejects in other architecture trees).

- Secondly, its very easy to miss stuff in the lkml hunk of email each
  day when you have less than 4 hours to read it and think about it.
  (note that architecture maintainers have to read mail from their
  side which may not be on lkml, think about that, think about bug fixes,
  possible impacts of fixes on other machines, etc etc).  Therefore,
  copying their email address registered in the MAINTAINER file means
  that they should not overlook your patch.

- I know that Alan does take lots of patches off lkml, but I'm not sure
  what his criterion is for selecting them.  In the case which started
  this thread off, I'm always worried that your cleanup patch would make
  it in, and then cause me problems later on.

--
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html





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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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On Fri, Apr 20, 2001 at 02:48:18PM -0400, Nicolas Pitre wrote:
> 
> 
> On Fri, 20 Apr 2001, Tom Rini wrote:
> 
> > On Fri, Apr 20, 2001 at 12:35:12PM -0400, Nicolas Pitre wrote:
> >
> > > Why not having everybody's tree consistent with themselves and have whatever
> > > CONFIGURE_* symbols and help text be merged along with the very code it
> > > refers to?  It's worthless to have config symbols be merged into Linus' or
> > > Alan's tree if the code isn't there (yet).  It simply makes no sense.
> >
> > Well, this depends a lot on a) The project to be merged (arch, mtd, whatever)
> > and b) how far something has gotten in being merged someplace else, and of
> > course c) the maintainer(s).  Whatever the exact case, and in general, it
> > should be handled via the maintainer.  Why? They maintain the code.
> 
> Therefore it's the maintainer's job to submit coherent patches and accept to
> see inconsistent CONFIG_* references be removed from the official tree until
> further patch submission is due.  It's only a question of discipline.
> Otherwise how can you distinguish between dead wood which must be removed
> and potentially valid symbols referring to code existing only in a remote
> tree?

Er, I think we agree, but I'm not sure. :)
The only people who actually know the difference between dead wood and partily
merged code are the maintainers.  IMHO it's silly to remove a piece of code
like:
#ifdef CONFIG_SOMETHING_NOT_MERGED
...
#endif
If the rest of the code, which would make the above useful is heading toward
Linus.

-- 
Tom Rini (TR1265)
http://gate.crashing.org/~trini/




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From: Russell King <rmk@arm.linux.org.uk>
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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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Xref: news.gmane.org gmane.linux.ports.parisc:10857

On Fri, Apr 20, 2001 at 12:50:05PM -0400, Eric S. Raymond wrote:
> Nicolas Pitre <nico@cam.org>:
> > Why not having everybody's tree consistent with themselves and have whatever
> > CONFIGURE_* symbols and help text be merged along with the very code it
> > refers to?  It's worthless to have config symbols be merged into Linus' or
> > Alan's tree if the code isn't there (yet).  It simply makes no sense.

Really, the above issue is down to the sub-architecture maintainers splitting
up their patches into the "one feature, one bug" thing, rather than "one
set of files" (which, incidentally I'm guilty of as well).  That way, when
stuff gets added, you get:

1. The C source changes for that item
2. The configure script stuff for that one item
3. The help text for that one item.

Currently, stuff that comes to me appears mostly as "here's a configure
update", "here's a PCMCIA update", etc.  I'll pull out an instance from
my patch tracking system (sorry, Philip, yours is the first one I found):

Patch 413/1 (see http://www.arm.linux.org.uk/developer/patches/?id=413/1&mode=patch)
This patch adds the defconfig file for the CLPS7500 architecture, and it
contains symbols such as:

	CONFIG_BLK_DEV_FLD7500
	CONFIG_CLPS7500_FLASH

Neither of these two drivers are currently in Linus' tree, or in fact my
tree.  Should I reject the patch?  Should I accept it and edit these out,
or what?

> And now it has a cost, too.  It makes finding real bugs more difficult.

Well, if they get removed in Linus tree, then when I next sync, they'll get
re-added, or maybe they won't.  Then someone else will remove them, then
they'll get re-added ad infinitum.

This also touches on another issue - patch.  I've had several times where
I've sent Alan stuff, its gone up to Linus, I receive it back, and during
the merge, patch does its stuff without complaining (because there is not
enough context in the diff).  Typically, this happens in the Configure.help
file.

Generally it seems like diff needs to produce one more line of context, and
most of these problems will go away.  Yes, there will still be the odd
problem, so then it becomes the "how much do you crank the setting" problem.

--
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html




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From: "Eric S. Raymond" <esr@thyrsus.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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Matthew Wilcox <willy@ldl.fc.hp.com>:
> > Could I ask you to audit your tree and change the prefix on any 
> > CONFIG_ symbols that are private over there?  This would make life 
> > easier for my auditing tools (kxref and Stephen Cole's ach script).
> 
> I don't think we have any of those.  We certainly have symbols which are
> defined for symmetry and may not actually be used yet (CONFIG_PA11 might not
> be, perhaps).  But that's what happens when you're developing software :-)

Here's what I have for you guys:

CONFIG_BINFMT_JAVA: arch/parisc/config.in arch/parisc/defconfig arch/cris/config.in arch/cris/defconfig

You've already gotten rid of that one.

CONFIG_BINFMT_SOM: arch/parisc/config.in arch/parisc/defconfig

Not used in code anywhere.  Can you get rid of this one?

CONFIG_DMB_TRAP: arch/parisc/kernel/sba_iommu.c
CONFIG_FUNC_SIZE: arch/parisc/kernel/sba_iommu.c

Would you please take these out of the CONFIG_ namespace?  Changing the 
prefix to CONFIGURE would do nicely.

CONFIG_GENRTC: arch/parisc/defconfig

This is a typo for GEN_RTC.  Please fix it or get rid of it.

CONFIG_HIL: arch/parisc/defconfig

Looks like an orphan.  Can you get rid of it?

CONFIG_GSC: arch/parisc/config.in arch/parisc/defconfig
CONFIG_GSC_DINO: arch/parisc/config.in arch/parisc/defconfig
CONFIG_GSC_LASI: arch/parisc/config.in arch/parisc/defconfig arch/parisc/kernel/led.c
CONFIG_GSC_PS2: arch/parisc/config.in arch/parisc/defconfig
CONFIG_IODC_CONSOLE: arch/parisc/config.in arch/parisc/kernel/setup.c
CONFIG_IOMMU_CCIO: arch/parisc/config.in arch/parisc/defconfig arch/parisc/kernel/Makefile
CONFIG_IOMMU_SBA: arch/parisc/config.in arch/parisc/defconfig arch/parisc/kernel/Makefile
CONFIG_IOSAPIC: arch/parisc/config.in arch/parisc/defconfig arch/parisc/kernel/Makefile
CONFIG_KWDB: arch/parisc/Makefile arch/parisc/config.in arch/parisc/defconfig arch/parisc/kernel/entry.S arch/parisc/kernel/traps.c arch/parisc/mm/init.c
CONFIG_LASI_82596: arch/parisc/config.in arch/parisc/defconfig
CONFIG_PARPORT_GSC: drivers/parport/Makefile arch/parisc/config.in arch/parisc/defconfig
CONFIG_PCI_LBA: arch/parisc/config.in arch/parisc/defconfig arch/parisc/kernel/Makefile
CONFIG_SCSI_LASI: arch/parisc/config.in arch/parisc/defconfig
CONFIG_SCSI_ZALON: arch/parisc/config.in arch/parisc/defconfig
CONFIG_STI_CONSOLE: arch/parisc/Makefile arch/parisc/config.in arch/parisc/defconfig arch/parisc/kernel/setup.c arch/parisc/mm/init.c

Looks like these need Configure.help entries.

CONFIG_SERIAL_GSC: drivers/char/serial.c arch/parisc/defconfig

That reference pattern looks kind of weird.  Is this a bug?

If you could clean these up, that's everything I need from the parisc tree.
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

(Those) who are trying to read the Second Amendment out of the Constitution by
claiming it's not an individual right (are) courting disaster by encouraging
others to use the same means to eliminate portions of the Constitution they
don't like.
	-- Alan Dershowitz, Harvard Law School




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Xref: news.gmane.org gmane.linux.ports.parisc:10859

On Fri, Apr 20, 2001 at 03:47:43PM -0400, Eric S. Raymond wrote:
> CONFIG_BINFMT_SOM: arch/parisc/config.in arch/parisc/defconfig
> 
> Not used in code anywhere.  Can you get rid of this one?

Code not merged yet.

> CONFIG_DMB_TRAP: arch/parisc/kernel/sba_iommu.c
> CONFIG_FUNC_SIZE: arch/parisc/kernel/sba_iommu.c
> 
> Would you please take these out of the CONFIG_ namespace?  Changing the 
> prefix to CONFIGURE would do nicely.

Grant?  This is your code.

> CONFIG_GENRTC: arch/parisc/defconfig
> 
> This is a typo for GEN_RTC.  Please fix it or get rid of it.

in our tree it's in drivers/char/Makefile:

obj-$(CONFIG_GENRTC) += genrtc.o

this code was written by Sam Creasey as part of the sun3 port, and he
schlepped it into our tree too.  we have no GEN_RTC in our tree.

> CONFIG_HIL: arch/parisc/defconfig
> 
> Looks like an orphan.  Can you get rid of it?

code not yet merged.

> CONFIG_SERIAL_GSC: drivers/char/serial.c arch/parisc/defconfig
> 
> That reference pattern looks kind of weird.  Is this a bug?

it's old and needs to die properly.  i haven't had time to fix that yet.




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Matthew Wilcox <willy@ldl.fc.hp.com>:
> Code not merged yet.
    :
> it's old and needs to die properly.  i haven't had time to fix that yet.

Thanks for the information.  Actually the parisc tree is one of the ones
that leaks the fewest of these symbols... 
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

Ideology, politics and journalism, which luxuriate in failure, are
impotent in the face of hope and joy.
	-- P. J. O'Rourke




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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is 
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matthew@wil.cx said:
> Have you tried mailing webmaster@kernel.org and asking to be added? 

Yes.

jes@linuxcare.com said:
> I'd be highly surprised if they said no to adding UML to the list if
> you mailed them a request to update the page. 

Well, be surprised then.  The reply from hpa was that that list was for 
processor ports.  He did say that there might at some point in the future be a 
separate list (off the main page) of other things.

				Jeff






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> CONFIG_BINFMT_SOM: arch/parisc/config.in arch/parisc/defconfig
> Not used in code anywhere.  Can you get rid of this one?

Its used in the parisc tree as are most of the others you see. You probably want
to simply skip processing arch/parisc





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nico@cam.org said:
> Therefore it's the maintainer's job to submit coherent patches and
> accept to see inconsistent CONFIG_* references be removed from the
> official tree until further patch submission is due. 

Maybe. But you tend to include the latest MTD code in your tree, for
example, and hence the defconfigs have the new options in. Is it really
worth your time to produce separate defconfigs without it before feeding 
your changes upstream?


> Otherwise how can you distinguish between dead wood which must be
> removed and potentially valid symbols referring to code existing only
> in a remote tree?

By periodically publishing a list of the potentially-obsolete symbols as ESR
has done, and _not_ removing the ones which people speak up about. It's not
as if this is something which needs to be done more than about once a year.

--
dwmw2






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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone
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Russell King writes:
> - Secondly, its very easy to miss stuff in the lkml hunk of email each
>   day when you have less than 4 hours to read it and think about it.
>   (note that architecture maintainers have to read mail from their
>   side which may not be on lkml, think about that, think about bug fixes,
>   possible impacts of fixes on other machines, etc etc).  Therefore,
>   copying their email address registered in the MAINTAINER file means
>   that they should not overlook your patch.

One of the issues for contacting each MAINTAINER is that this information
is out-of-line from the actual kernel tree.  The other is that the
description of what a maintainer is actually controlling is somewhat
vague.

How about the following:
- each directory has a MAINTAINERS file which lists parties with a
  vested interest in files in that directory (format is mostly the
  same as current)
- subdirectories which don't have a MAINTAINERS file use the MAINTAINERS
  file of the parent (or grandparent) directory
- each maintainer entry explicitly lists each file/directory that this
  person is interested in, maybe "F: {file | directory} ...".

I'm sure Eric can come up with a simple program to parse the MAINTAINER
file/tree.  If the program takes a kernel-tree relative filename and
spit out the name/email of the relevant maintainer (subsystem and port
specific mailing lists should also be included), that would make the 
job of finding out who to send patches to a whole lot easier.

My one gripe about the MAINTAINERS file is that it still lists Remy
Card as EXT2 maintainer, so we would probably need to do a find on
the whole kernel tree, email each address a list of files that they
"maintain" and wait until they complain, agree, or time out.  Once
the database is up-to-date, it simplifies the job of keeping maintainers
(and other interested parties) in the loop.

Cheers, Andreas
-- 
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert




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David Woodhouse <dwmw2@infradead.org>:
> > Otherwise how can you distinguish between dead wood which must be
> > removed and potentially valid symbols referring to code existing only
> > in a remote tree?
> 
> By periodically publishing a list of the potentially-obsolete symbols as ESR
> has done, and _not_ removing the ones which people speak up about. It's not
> as if this is something which needs to be done more than about once a year.

Not good enough.  In a year, the pile of false positives would get high enough
to make it too hard to spot real bugs like the Aironet mismatch.  The whole 
point of the cleanup is to be able to mechanize the consistency checks so they
require a minimum of human judgment.
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

"This country, with its institutions, belongs to the people who
inhabit it. Whenever they shall grow weary of the existing government,
they can exercise their constitutional right of amending it or their
revolutionary right to dismember it or overthrow it."
	-- Abraham Lincoln, 4 April 1861




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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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esr@thyrsus.com said:
>  Not good enough.  In a year, the pile of false positives would get
> high enough to make it too hard to spot real bugs like the Aironet
> mismatch.  The whole  point of the cleanup is to be able to mechanize
> the consistency checks so they require a minimum of human judgment.

I'm not sure that's the case. The nature of the false positives is that 
they're generally _temporary_ aberrations, caused by the loss of 
synchronisation of various maintainers w.r.t submitting patches to Linus.

I'd be very surprised if the number of false positives isn't fairly stable, 
with new ones being introduced at a similar rate to the rate at which old 
ones finally become correct. 

Might be interesting to check a few older kernels to see if this is true. 
Actually I might expect it to be roughly proportional to the number of 
separately-maintained bodies of code - so it'll grow over time, as the size 
of the Linux kernel grows. 

--
dwmw2






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David Woodhouse <dwmw2@infradead.org>:
> I'd be very surprised if the number of false positives isn't fairly stable, 
> with new ones being introduced at a similar rate to the rate at which old 
> ones finally become correct. 

Even supposing that's so, a 36% rate of broken symbols is way too high. 
It argues that we need to do a thorough housecleaning at least once in
order to get back to an acceptably low stable rate.
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

The same applies for other kinds of long-lasting low-level pain. [...]
The body's response to being jabbed, pierced, and cut is to produce
endorphins. [...]  So here's my programme for breaking that cycle of
dependency on Windows: get left arm tattooed with dragon motif, buy a
crate of Jamaican Hot! Pepper Sauce, get nipples pierced.  With any
luck that will produce enough endorphins to make Windows completely
redundant, and I can then upgrade to Linux and get on with things.
	-- Pieter Hintjens




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esr@thyrsus.com said:
>  Even supposing that's so, a 36% rate of broken symbols is way too
> high.  It argues that we need to do a thorough housecleaning at least
> once in order to get back to an acceptably low stable rate.

Accepted. Can we let the 2.4 "angry penguin"-enforced stabilising period
finish, and give the arch and subsystem maintainers a chance to finally
brave the wrath of Linus and submit their patches, before we attempt do to
it though?

--
dwmw2






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> Unexpected Interruption!: Code=0 regs=1027a080 (Addr=00000000)

Oops. It looks like you are getting an HPMC, however, when I recently
changed the interruption handlers to use shadow registers rather than
temporary control registers, I changed the convention for passing in
the trap "code". It looks like I missed changing the appropriate
code in the hpmc handler, so code got passed as 0, instead of
transferring the real hpmc trap data from pim, it reported what
was in the ipr's at the time the Q bit was last turned off.

> Like Ryans crash, PSW has only the Q bit set - data translation is
> turned off.  I guess that means the IAOQ values are real addresses, so I
> added 0x10000000 before looking them up in System.map.  In my case, it
> died on the "rsm 8,r0" under os_hpmc_5 in arch/parisc/kernel/hpmc.S.

It didn't die there. The Q bit was turned off there, so that was the
last place that the ipr's (iasq/iaoq/ipsw etc) tracked what was going
on. In fact the hpmc handler worked properly with the exception of
passing in a "1" for code, so you got some output. If the hpmc handler
hadn't worked, you would not have gotten anything.

Try applying the following patch to hpmc.S and you should get a little
more useful output:

--- hpmc.S.old	Fri Apr 20 15:22:02 2001
+++ hpmc.S	Fri Apr 20 15:24:13 2001
@@ -264,8 +264,7 @@ os_hpmc_5:
 	tovirt_r1 %r30      /* make sp virtual */
 
 	rsm 8,%r0           /* Clear Q bit */
-	ldi     1,%r1
-	mtctl   %r1,%cr29   /* Set trap code to "1" for HPMC */
+	ldi     1,%r8       /* Set trap code to "1" for HPMC */
 	mtctl   %r0,%cr30   /* Force interruptions to use hpmc stack */
 	ldil    L%PA(intr_save), %r1
 	ldo     R%PA(intr_save)(%r1), %r1

Let me know if the patch fixes the hpmc handler bug.

Note, your real problem is that you got an hpmc. Also note that the
hpmc handler only reports the hpmc pim information that is common to
all machines. There is a lot of machine specific hpmc information that
you can get once you reboot and type "ser pim 0 hpmc" at the boot
console prompt. Of course, decoding it can be difficult.

John




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> Even supposing that's so, a 36% rate of broken symbols is way too high. 
> It argues that we need to do a thorough housecleaning at least once in
> order to get back to an acceptably low stable rate.

Many of your 'broken' symbols arent. We have no idea what the real amount is




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David Woodhouse <dwmw2@infradead.org>:
> esr@thyrsus.com said:
> >  Even supposing that's so, a 36% rate of broken symbols is way too
> > high.  It argues that we need to do a thorough housecleaning at least
> > once in order to get back to an acceptably low stable rate.
> 
> Accepted. Can we let the 2.4 "angry penguin"-enforced stabilising period
> finish, and give the arch and subsystem maintainers a chance to finally
> brave the wrath of Linus and submit their patches, before we attempt do to
> it though?

I guess so.  We don't particularly have a choice, do we? :-)
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

"Government is not reason, it is not eloquence, it is force; like fire, a
troublesome servant and a fearful master. Never for a moment should it be left
to irresponsible action."
	-- George Washington, in a speech of January 7, 1790




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Alan Cox <alan@lxorguk.ukuu.org.uk>:
> > Even supposing that's so, a 36% rate of broken symbols is way too high. 
> > It argues that we need to do a thorough housecleaning at least once in
> > order to get back to an acceptably low stable rate.
> 
> Many of your 'broken' symbols arent. We have no idea what the real amount is

If it can't be mechanically verified that the symbol has a correct reference 
pattern within the tree, then it's broken.  That's a definition.

The fact that it might become un-broken someday, by somebody's
intention to merge in future code, is interesting but irrelevant to
the fact that symbols broken in present time *mask bugs* in present time.

I'm not being a compulsive neatnik -- that wouldn't be worth my time.  What I'm
trying to do is reduce the number of crevices in which bugs can hide.
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

This would be the best of all possible worlds, if there were
no religion in it.
	-- John Adams, in a letter to Thomas Jefferson.




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Subject: [parisc-linux] Proposal for better attribution structure
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Andreas Dilger <adilger@turbolinux.com>:
> One of the issues for contacting each MAINTAINER is that this information
> is out-of-line from the actual kernel tree.  The other is that the
> description of what a maintainer is actually controlling is somewhat
> vague.

I strongly agree.  I first tripped over this problem when I was trying
to identify the responsible parties for [Cc]onfig.in files.  It's
biting me again now that I'm trying to clean up the CONFIG_ space.
It's one that's going to cause grief for anybody trying to do *global*
work on the kernel, stuff that crosses boundaries between maintainer
jurisdictions.  
 
> How about the following:
> - each directory has a MAINTAINERS file which lists parties with a
>   vested interest in files in that directory (format is mostly the
>   same as current)
> - subdirectories which don't have a MAINTAINERS file use the MAINTAINERS
>   file of the parent (or grandparent) directory
> - each maintainer entry explicitly lists each file/directory that this
>   person is interested in, maybe "F: {file | directory} ...".
> 
> I'm sure Eric can come up with a simple program to parse the MAINTAINER
> file/tree.  If the program takes a kernel-tree relative filename and
> spit out the name/email of the relevant maintainer (subsystem and port
> specific mailing lists should also be included), that would make the 
> job of finding out who to send patches to a whole lot easier.

The spirit of this proposal is, IMO, excellent.  I like the idea that if
maintainer information for a particular piece of the hierarchy doesn't
exist, you float up to the next higher level.  Search always ends at
the root MAINTAINERS file.

And I could indeed write a program such as Andreas describes, and would
be most willing to do so.

I have one objection, however.  I think the maintainers information
should normally be inline of the file in question, so there won't
be a need for an explicit F: link that could become invalid.  So I
think the search order should look like this:

	1. Look for maintainer markup in the file itself.
	2. Then look for a NAINTAINERS file in the current directory.
	3. Then look upwards for MAINTAINERS files in enclosing directories.

> My one gripe about the MAINTAINERS file is that it still lists Remy
> Card as EXT2 maintainer, so we would probably need to do a find on
> the whole kernel tree, email each address a list of files that they
> "maintain" and wait until they complain, agree, or time out.  Once
> the database is up-to-date, it simplifies the job of keeping maintainers
> (and other interested parties) in the loop.

I have until 6 May at least to work on this, if there is consensus that it's
a good idea.
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

Where rights secured by the Constitution are involved, there can be no
rule making or legislation which would abrogate them.
        -- Miranda vs. Arizona, 384 US 436 p. 491




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From: Tom Leete <tleete@mountain.net>
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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone 
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[Cc: trimmed]

Russell King wrote:
> 
[...]
> 
> Generally it seems like diff needs to produce one more line of context, and
> most of these problems will go away.  Yes, there will still be the odd
> problem, so then it becomes the "how much do you crank the setting" problem.
>
 
$ diff -6 ...
will give 6 lines of context. patch will understand the output without any
extra help.

Cheers,
Tom

-- 
The Daemons lurk and are dumb. -- Emerson




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Subject: [parisc-linux] Appollo 730
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A couple of us are collecting cheap old HP machines for use as a crude parallel
processor, for problems like factoring. We currently have about 20, mostly 712/60
with a few 715s.

I've found a pile of machines with an Appollo nameplate, rather than HP, and a
730 model number. They look a fair bit like a 735, deeper case than 712 or 715,
boards that slide in from the back. The vendor assures me they use a first
generation PA-RISC CPU.

Are these the HP 730 the hardware database mentions? If not, will they run Linux?




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From: "Brian S. Julin" <bri@mojo.calyx.net>
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Subject: [parisc-linux] modules/modutils??
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Hmm.  What would I be doing wrong to produce this error:

Cannot initialise dp, 'data_start' not found

...when trying to load a kernel module (or are things just broke,
and if so is it something a non-guru might be able to help fix.
Loadable modules would speed development of the HIL driver immensely.)

--
Brian S. Julin





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On Sat, Apr 21, 2001 at 12:24:52AM -0400, Brian S. Julin wrote:
> 
> Hmm.  What would I be doing wrong to produce this error:

http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2001-April/028890.html

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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"Eric S. Raymond" wrote:
> Here's what I have for you guys:

...
> CONFIG_DMB_TRAP: arch/parisc/kernel/sba_iommu.c
> CONFIG_FUNC_SIZE: arch/parisc/kernel/sba_iommu.c
> 
> Would you please take these out of the CONFIG_ namespace?  Changing the 
> prefix to CONFIGURE would do nicely.

As willy noted, both mine. I'll remove or rename them rename them so
they aren't in the CONFIG_ name space. Probably s/CONFIG_/SBA_/ for
those two.

I'm going to submit a "wishlist" bug to our debian BTS
(bugs.parisc-linux.org) for "Data Memory Break Trap" support.
It's a damn good Hammer! :^)
(GDB will probably want to use this too)

I once had a working "Data Memory Break Trap" handler to catch other
parts of the kernel when they corrupted the IO Pdirs. Hooks in sba_ccio.c
helped mark which pages would trap and define which code was allowed to
touch the page. My implementation had issues and I never bothered to
re-implement as suggested by our parisc CPU god, John Marvin.

CONFIG_FUNC_SIZE is just a bad choice of name (asking for trouble).
One might consider this a bug that hasn't happened yet - thanks Eric!

#define CONFIG_FUNC_SIZE 4096   /* SBA configuration function reg set */


> CONFIG_KWDB: arch/parisc/Makefile arch/parisc/config.in arch/parisc/defconfig
>    arch/parisc/kernel/entry.S arch/parisc/kernel/traps.c arch/parisc/mm/init.
>   c

This ones actually mine too. It could be replaced with the SGI debugger
CONFIG option if/when that ever gets supported. The hooks will have to
be in the same place. I'm pretty sure now the HP KWBD team will never give me
permission to publish KWDB sources (they've had almost a year now).
I sorta almost had the damn thing working too...*sigh*.
Willy should do whatever he thinks is right in this case.

> CONFIG_PCI_LBA: arch/parisc/config.in arch/parisc/defconfig arch/parisc/kerne
>   l/Makefile
...
> Looks like these need Configure.help entries.

That's mine too.
We've been lazy about documentation since the getting the code working
has been a higher priority.  I think having them documented will be a
prerequisite to merging upstream (either to Alan Cox or Linus).

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Tom Leete writes:
> $ diff -6 ...
> will give 6 lines of context. patch will understand the output without any
> extra help.

Indeed, but I can't do that to a patch that Alan or Linus produces.

--
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html





From - Thu Nov 08 21:17:22 2018
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From: "Jason Saggers" <psyclone@owbn.net.nz>
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Subject: [parisc-linux] Hello and Question about the E45
Date: Sat, 21 Apr 2001 22:45:23 +1200
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Hi,

	I realiase that the E45's arent completely support by this project, but =
has anyone succeded in getting on to boot etc...

	I am getting it to boot part why... and the just stops..... No errors =
nothing

	Any information would be appreciated.  I am currently using the 0.5 iso =
images.  Am about to try the later kernels etc in the next couple of =
days.

Jason





From - Thu Nov 08 21:17:23 2018
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From: Dave Gilbert <gilbertd@treblig.org>
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Subject: Re: [parisc-linux] Appollo 730
Date: Sat, 21 Apr 2001 12:16:46 +0100 (BST)
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On Fri, 20 Apr 2001, Sandy Harris wrote:

> I've found a pile of machines with an Appollo nameplate, rather than
> HP, and a 730 model number. They look a fair bit like a 735, deeper
> case than 712 or 715, boards that slide in from the back. The vendor
> assures me they use a first generation PA-RISC CPU.

As of yesterday I got my first HP - it is marked as Hewlett Packard Apollo
735.

I'm told it is actually a 730 that was upgraded to the 735 - but
/proc/cpuinfo still shows it as a 730 - hmm:

> processor     : 0
> cpu family    : PA-RISC 1.1a
> cpu           : PA7000 (PCX-S)
> cpu MHz               : 99.000000
> model         : 9000/730
> model name    : King Cobra (730)

The SCSI is being a bit of a pain - but the machine appears to be missing
a SCSI terminator, something that I'll hopefully solve today.

One thing to remember is that this thing uses 'rboot' rather than the
normal bootp - you'll need to find yourself a copy of rbootd; I found a
copy nestling on the Debian unstable site; it built with a bit of fight on
the Linux/Alpha box I'm booting it off.

Dave

-- 
 ---------------- Have a happy GNU millennium! ----------------------   
/ Dr. David Alan Gilbert    | Running GNU/Linux on Alpha,68K| Happy  \ 
\ gro.gilbert @ treblig.org | MIPS,x86,ARM, SPARC and HP-PA | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/






From - Thu Nov 08 21:17:23 2018
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Subject: [parisc-linux] SCSI problems on 73[05]
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Hi,
  As I mentioned in a previous mail, my first machine successfully is now
net booting Linux/HP-PA.

  I am however having some problems with SCSI on it; I'm trying to do

dd if=/dev/zero of=/dev/sda

to clear the discs but am getting:

scsi0: Unable to abort command for target 5
scsi0: Unable to send Bus Device Reset for target 5
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00075038 (script[0x140e]), dsps = 00075cde, target = 0
scsi0: Failing command for ID5
SCSI disk error : host 0 channel 0 id 5 lun 0 return code = 2
 I/O error: dev 08:00, sector 128
 I/O error: dev 08:00, sector 130

Here is the dmesg from boot; I guess the warnings about IRQ probes are
probably a bit dodgy!
(Oh, there is a 10/100 ether card in the EISA slot - how do I figure out
what it is?)

Linux version 2.4.0 (grundler@gsyprf10) (gcc version 3.0 20010315 (prerelease)) #3 Tue Apr 17 23:07:07 PDT 2001
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Determining PDC firmware type: Older Legacy Box
setup_cmdline(0x64d5c,0x64d5c,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs                                       '
PALO initrd 0-0
model	00002020 00000481 00000000 00000000 39d738f4 000011f4 00000004 0000000a 0000000a
vers	0000000b
CPUID	vers 0 rev 0
model	9000/730
Total Memory: 96 Mb
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 24576
zone(0): 24576 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Searching for devices...
Found devices:
1. Outfield Core BA (11) at 0xf082f000, versions 0x9, 0x0, 0x70, 0x0, 0x0
2. Outfield Core SCSI (10) at 0xf0825000, versions 0x9, 0x0, 0x71, 0x0, 0x0
3. Outfield Core LAN (802.3) (10) at 0xf0826000, versions 0x9, 0x0, 0x72, 0x0, 0x0
4. Outfield Core HIL (10) at 0xf0821000, versions 0x9, 0x0, 0x73, 0x0, 0x0
5. Outfield Core RS-232 (10) at 0xf0823000, versions 0x9, 0x0, 0x75, 0x0, 0x0
6. Outfield Core RS-232 (10) at 0xf0822000, versions 0x9, 0x0, 0x75, 0x0, 0x0
7. Outfield Core Centronics (10) at 0xf0824000, versions 0x9, 0x0, 0x74, 0x0, 0x0
8. Outfield FW SCSI (10) at 0xf0830000, versions 0x9, 0x0, 0x7c, 0x0, 0x0
9. Outfield Audio (10) at 0xf1000000, versions 0x9, 0x0, 0x7f, 0x0, 0x0
10. Cobra EISA BA (11) at 0xfc000000, versions 0x4, 0x0, 0x76, 0x0, 0x0
11. King Cobra (730) (0) at 0xfffbe000, versions 0x202, 0x0, 0x4, 0x0, 0x81
12. Hardball (1) at 0xfffbf000, versions 0x19, 0x0, 0x9, 0x0, 0x0
That's a total of 12 devices.
CPU(s): 1 x PA7000 (PCX-S) at 99.000000 MHz
Kernel command line: HOME=/ TERM=linux root=/dev/nfs                                       
Calibrating delay loop... 98.71 BogoMIPS
Memory: 94452k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
ASP version 20 at 0xf0800000 found.
LED (ASP-style) display at f0800020 registered
Found HIL at 0xf0821000, IRQ 94
HIL: no keyboard present.
Warning : device (10, 0x9, 0x0, 0x73, 0x0) NOT claimed by HIL 712, 715 or similiar
Found i82596 at 0xf0826000, IRQ 87
early initialization of device eth0 is deferred
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 25 FB 6F IRQ 87.
82596.c $Revision: 1.17 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
lp0: using parport0 (interrupt-driven).
SCSI subsystem driver Revision: 1.00
sim700: Couldn't get consistent shared memory
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
Post test1, istat 05, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: WARNING: target data areas are not dma coherent!
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: QUANTUM   Model: PD425S            Rev: 535A
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: QUANTUM   Model: PD425S            Rev: 535A
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 5, lun 0
Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
SCSI device sda: 833150 512-byte hdwr sectors (427 MB)
Partition check:
 sda: unknown partition table
SCSI device sdb: 833150 512-byte hdwr sectors (427 MB)
 sdb: unknown partition table
linear personality registered
raid0 personality registered
raid1 personality registered
raid5 personality registered
raid5: measuring checksumming speed
   8regs     :    67.056 MB/sec
   8regs_prefetch:    67.056 MB/sec
   32regs    :    75.057 MB/sec
   32regs_prefetch:    75.057 MB/sec
raid5: using function: 32regs_prefetch (75.057 MB/sec)
md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md.c: sizeof(mdp_super_t) = 4096
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
eth0: link ok.
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 192.66.66.4, my address is 192.66.66.15
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 192.66.66.4
Looking up port of RPC 100005/2 on 192.66.66.4
VFS: Mounted root (nfs filesystem) readonly.
Warning: unable to open an initial console.

-- 
 ---------------- Have a happy GNU millennium! ----------------------   
/ Dr. David Alan Gilbert    | Running GNU/Linux on Alpha,68K| Happy  \ 
\ gro.gilbert @ treblig.org | MIPS,x86,ARM, SPARC and HP-PA | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/





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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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esr@thyrsus.com said:
> If it can't be mechanically verified that the symbol has a correct
> reference  pattern within the tree, then it's broken.  That's a
> definition. 

Here's an alternative definition:

If the symbol has the letters 'F', 'I', 'S' and 'H' in it, in any order, 
then it's broken.

That's also a definition. It's not a particularly useful one, but neither 
was yours.

/me looks for a way to equate the original definition with the halting 
problem :)

--
dwmw2






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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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Xref: news.gmane.org gmane.linux.ports.parisc:10884

Grant Grundler <grundler@puffin.external.hp.com>:
> One might consider this a bug that hasn't happened yet - thanks Eric!

Thank you very much for your cooperation.  This is the third real problem that
the CONFIG_ namespace audit has turned up, and a good example of the sort of
thing I have been hoping to accomplish with it.
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

(Those) who are trying to read the Second Amendment out of the Constitution by
claiming it's not an individual right (are) courting disaster by encouraging
others to use the same means to eliminate portions of the Constitution they
don't like.
	-- Alan Dershowitz, Harvard Law School




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Hello !

At the moment, I am the only person who had booted Linux on an
E-server, I have the E55.

The E55 (and the others) have proprietary interfaces and three main
points
are affected:
	- serial multiport (serial console on port 0 !!!)
	- SCSI disks and SCSI sub system
	- parallel port

For the first (serial console) I wrote some "hacks" for the linux
kernel.
I added a tty-device driver for the PDC ROM console (polling, etc....),
and now I can boot the machine, with NFSROOT of course. Even login, etc
is working correctly.

If you have interest in more detail or in my kernel tree for the E55,
please
email to me.

I think for some debugging purposes or problems with serial devices, my
kernel add-on can also be interesting for the main-stream of linux.

With friendly regards
	Christoph Plattner

BTW: My new email address is 
	christoph.plattner@gmx.at    -- soon.

------------------------

Jason Saggers wrote:
> 
> Hi,
> 
>         I realiase that the E45's arent completely support by this project, but has anyone succeded in getting on to boot etc...
> 
>         I am getting it to boot part why... and the just stops..... No errors nothing
> 
>         Any information would be appreciated.  I am currently using the 0.5 iso images.  Am about to try the later kernels etc in the next couple of days.
> 
> Jason
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------------------------
private:	christoph.plattner@dot.at
company:	christoph.plattner@alcatel.at




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SCSI problems on 73[05]
Date: Sat, 21 Apr 2001 17:37:57 +0100
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To: Dave Gilbert <gilbertd@treblig.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:10886

On Sat, Apr 21, 2001 at 12:54:38PM +0100, Dave Gilbert wrote:
> Hi,
>   As I mentioned in a previous mail, my first machine successfully is now
> net booting Linux/HP-PA.
> 
>   I am however having some problems with SCSI on it; I'm trying to do
> 
> dd if=/dev/zero of=/dev/sda
> 
> to clear the discs but am getting:
> 
> scsi0: Unable to abort command for target 5
> scsi0: Unable to send Bus Device Reset for target 5
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
> scsi0: dsp = 00075038 (script[0x140e]), dsps = 00075cde, target = 0
> scsi0: Failing command for ID5
> SCSI disk error : host 0 channel 0 id 5 lun 0 return code = 2
>  I/O error: dev 08:00, sector 128
>  I/O error: dev 08:00, sector 130

Please can you try booting with

	sim700=nodisc:0xff

added to the PALO command line, and let me know if it helps.

Oh, and how often/quickly does it fail?

Are you confident that scsi disks, cable and terminators are ok?
Do you get the problems with both disks?

Thanks,
  Richard





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From: Dave Gilbert <gilbertd@treblig.org>
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Subject: Re: [parisc-linux] SCSI problems on 73[05]
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uOn Sat, 21 Apr 2001, Richard Hirst wrote:

> Please can you try booting with
> 
> 	sim700=nodisc:0xff
> 
> added to the PALO command line, and let me know if it helps.

Yes, it works a treat. (I edited into the header of the LIF image I
downloaded using vi.....)

> Oh, and how often/quickly does it fail?

Every time; it runs for perhaps 10 seconds (well I don't know if its
running or about to timeout) and then gives the errors I posted.  Same
errors every time.

With your command line option I've just zero'd both discs with no errors
at all.

> Are you confident that scsi disks, cable and terminators are ok?

No. I've just been given the machine and don't know what its previous
state was (other than it was working fine a few months ago).  Its a 735
with the two discs internal in the mounting to the right of the box
(behind the LED bit I guess) with one of the little tiny HP SCSI-SCSI link
leads to the fast-narrow connector on the back of the machine.  This is
going off to another box (not switched on) which has a terminator on the
back and some other discs in.  That box is a known good one (as is the
cable to it).

 > Do you get the problems with both disks?

Yes.

Oh, also HP-UX booted off it OK - well it did until I just cleaned it
down.....

Dave

-- 
 ---------------- Have a happy GNU millennium! ----------------------   
/ Dr. David Alan Gilbert    | Running GNU/Linux on Alpha,68K| Happy  \ 
\ gro.gilbert @ treblig.org | MIPS,x86,ARM, SPARC and HP-PA | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/





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From: Jes Sorensen <jes@linuxcare.com>
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Subject: Re: [parisc-linux] Re: OK, let's try cleaning up another nit. Is anyone paying attention?
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Xref: news.gmane.org gmane.linux.ports.parisc:10888

>>>>> "Eric" == Eric S Raymond <esr@thyrsus.com> writes:

Eric> Alan Cox <alan@lxorguk.ukuu.org.uk>:
>> Many of your 'broken' symbols arent. We have no idea what the real
>> amount is

Eric> If it can't be mechanically verified that the symbol has a
Eric> correct reference pattern within the tree, then it's broken.
Eric> That's a definition.

It's a definition but not necessarily the best one to follow.

Eric> The fact that it might become un-broken someday, by somebody's
Eric> intention to merge in future code, is interesting but irrelevant
Eric> to the fact that symbols broken in present time *mask bugs* in
Eric> present time.

Symbols that are not referenced at all by the code does not hide any
bugs. They might make it take longer time for people to configure
their kernel but thats about it.

This does not mean that obsolete symbols should not be removed,
however running around telling people to remove symbols that they
might be using in their tree does cause unnecessary work for the
people who are writing the code.

Jes




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From: "Matthew van de Werken" <mvdw73@one.net.au>
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Subject: [parisc-linux] How do I use the FW scsi on 735?
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Xref: news.gmane.org gmane.linux.ports.parisc:10889

Hi folks:

I have a 735 which I have managed to boot using a disk I originally hosted
on an x86 Linux box. However, this disk is a narrow scsi disk, while I want
to use the other disks I have for this machine (which are UW SCSI disks).
The problem I have is that while the system recognises the narrow scsi disk,
it doesn't recognise the UW scsi disks I have attached, even though these
are recognised at boot time by the HP PDC-ROM.

I've tried fdisk'ing the /dev/sdb and /dev/sdc devices, but these are
inaccessible (at least by fdisk); the devices don't seem to come up in the
boot sequence, while the narrow-scsi disk is recognised by Linux (I've
appended the whole boot sequence captured from the terminal).

Any ideas?

Cheers,
MvdW

PS: I added the sim700=nodisc:0xff line to the end of the command line as I
thought this might have something to do with the problem - I get the same
thing without it.

PPS: I *love* the fact I can run Linux on this! Thanks to all!

PPPS: Anyone needing any help in booting from a SCSI disk originally hosted
from x86-linux, look at the ESIEE web site: http://mkhppa1.esiee.fr/en -
they have great info.



(c) Copyright.  Hewlett-Packard Company.  1992.
All rights reserved.

PDC ROM rev. 1.1
IODC ROM rev. 1.0
304 MB of memory configured and tested.


Selecting a system to boot.
To stop selection process, press and hold the ESCAPE key.

Selection process stopped.

Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.4.0                 SEAGATE ST15150N
P1                    fwscsi.6.0               HP      C2247
P2                    fwscsi.3.0               SEAGATE ST43401N



b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu: b p0

Trying scsi.4.0
Boot path initialized.
Attempting to load IPL.


Hard booted.
palo ipl root@zookeeper Sun Apr 22 08:12:41 EST 2001
0/vmlinux 2499228 bytes @ 0x48000
0/palo-cmdline '2/boot/vmlinux HOME=/ TERM=linux console=ttyS0
root=/dev/sda2 si
m700=nodisc:0xff'
/dev/ida1  f0         63      32067
/dev/ida2  83      32130    3277260
/dev/ida3  82    3309390     626535
/dev/ida4  83    3935925    4450005
Kernel: partition 2 file /boot/vmlinux
ext2 block size 4096
ext2_mount(partition 2) returns 0fail!
ext2_open(/boot/vmlinux) = 3
ELF32 executable
Entry 00100188 first 00100000 n 4
Segment 0 load 00100000 size 1394304 mediaptr 0x1000
Segment 1 load 00256000 size 174968 mediaptr 0x156000
Segment 2 load 00284000 size 221184 mediaptr 0x181000
Segment 3 load 002e1768 size 68976 mediaptr 0x1b7768
branching to kernel entry point 0x00100188
PDC Console Initialized
Linux version 2.4.0 (root@zookeeper) (gcc version 3.0 20010315 (prerelease))
#6
Sun Apr 22 07:39:30 EST 2001
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Determining PDC firmware type: Older Legacy Box
setup_cmdline(0x64cc4,0x64cc4,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux console=ttyS0 root=/dev/sda2
sim700=nodisc
:0xff'
PALO initrd 0-0
model   00002030 00000481 00000000 00000000 7778dc84 ffffffff 00000004
0000000a
0000000a
vers    0000000b
CPUID   vers 0 rev 0
model   9000/735
Total Memory: 304 Mb
pagetable_init
On node 0 totalpages: 77824
zone(0): 77824 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Searching for devices...
Found devices:
1. Outfield Core BA (11) at 0xf082f000, versions 0x9, 0x0, 0x70, 0x0, 0x0
2. Outfield Core SCSI (10) at 0xf0825000, versions 0x9, 0x0, 0x71, 0x0, 0x0
3. Outfield Core HIL (10) at 0xf0821000, versions 0x9, 0x0, 0x73, 0x0, 0x0
4. Outfield Core RS-232 (10) at 0xf0823000, versions 0x9, 0x0, 0x75, 0x0,
0x0
5. Outfield Core RS-232 (10) at 0xf0822000, versions 0x9, 0x0, 0x75, 0x0,
0x0
6. Outfield Core Centronics (10) at 0xf0824000, versions 0x9, 0x0, 0x74,
0x0, 0x
0
7. Outfield FW SCSI (10) at 0xf0830000, versions 0x9, 0x0, 0x7c, 0x0, 0x0
8. Outfield Audio (10) at 0xf1000000, versions 0x9, 0x0, 0x7f, 0x0, 0x0
9. Outfield FDDI (10) at 0xf0831000, versions 0x9, 0x0, 0x7d, 0x0, 0x0
10. Cobra EISA BA (11) at 0xfc000000, versions 0x4, 0x0, 0x76, 0x0, 0x0
11. Hardball (735/99) (0) at 0xfffbe000, versions 0x203, 0x0, 0x4, 0x0, 0x81
12. Hardball (1) at 0xfffbf000, versions 0x19, 0x0, 0x9, 0x0, 0x0
That's a total of 12 devices.
CPU(s): 1 x PA7100 (PCX-T) at 99.000000 MHz
Kernel command line: HOME=/ TERM=linux console=ttyS0 root=/dev/sda2
sim700=nodis
c:0xff
Calibrating delay loop... 98.71 BogoMIPS
Memory: 304048k available
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
VFS: Diskquotas version dquot_6.4.0 initialized
POSIX conformance testing by UNIFIX
ASP version 20 at 0xf0800000 found.
LED (ASP-style) display at f0800020 registered
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
request_module[parport_lowlevel]: Root fs not mounted
lp: driver loaded but no devices found
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI
ena
bled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
ppdev: user-space parallel port driver
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
lp0: using parport0 (interrupt-driven).
SCSI subsystem driver Revision: 1.00
sim700: Couldn't get consistent shared memory
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
Post test1, istat 05, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: WARNING: target data areas are not dma coherent!
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: SEAGATE   Model: ST15150N          Rev: 0023
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 4, lun 0
SCSI device sda: 8388315 512-byte hdwr sectors (4295 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
IP-Config: No network devices available.
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
modprobe: modprobe: Can't open dependencies file
/lib/modules/2.4.0/modules.dep
(No such file or directory)
INIT: version 2.78 booting
Activating swap...
Adding Swap: 313256k swap-space (priority -1)
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
Calculating module dependencies... depmod: Can't open
/lib/modules/2.4.0/modules
.dep for writing
done.
Loading modules:
modprobe: Can't open dependencies file /lib/modules/2.4.0/modules.dep (No
such f
ile or directory)
Checking all file systems...
Parallelizing fsck version 1.19 (13-Jul-2000)
Setting kernel variables.
Mounting local filesystems...
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
/dev/sda4 on /extra type ext2 (rw,errors=remount-ro)
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: done.

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Sat Sep 26 02:01:15 MDT 1998

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Restoring IP chains: ipchains: Incompatible with this kernel
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting internet superserver: inetd.
Starting OpenBSD Secure Shell server: sshd.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.

Debian GNU/Linux testing/unstable
pehc base tarball 2001-04-04 see /home/demo/README for more info
hippo login:





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Hi,
  In the current puffin CVS gcc a make install tried to install assert.h
in /install rather than in prefix.

Dave

-- 
 ---------------- Have a happy GNU millennium! ----------------------   
/ Dr. David Alan Gilbert    | Running GNU/Linux on Alpha,68K| Happy  \ 
\ gro.gilbert @ treblig.org | MIPS,x86,ARM, SPARC and HP-PA | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/





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From: Matthew Wilcox <matthew@wil.cx>
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On Fri, Apr 20, 2001 at 07:10:43PM +0200, Andreas Thienemann wrote:
> while trying to compile the current glibc snapshot from the puffin-cvs, make
> segfaults:
> Has anyone ever experienced a similar problem? This segfault is
> reproducable and it's the first time that happened. gcc did compile
> correct, the same with the kernel itself.

Yes, I was getting it too.  After my recent kernel checkin to fix the
stat64 struct, I was able to build glibc successfully.  My theory is that
glibc was trying to call the *stat64 syscalls and the kernel was happily
writing all over user memory.  I would be grateful if you updated your
(running) kernel to head of CVS and tried building glibc again.

-- 
Revolutions do not require corporate support.




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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] E-mail address change in Hardware database !!
Date: Sun, 22 Apr 2001 23:57:24 +0200
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Hello !

My email address has changed.
On the machines:
	* E55
	* 720 
I have registered a 2nd time with the new address !
Please delete the first entry of
	Christoph Plattner
	christoph.plattner@dot.at
New address:
	christoph.plattner@gmx.at 
!!

With friendly regards
	Christoph Plattner



-- 
-------------------------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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From: "van de Werken, Matthew (DEM, PH)" <M.Vandewerken@cat.csiro.au>
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Subject: FW: [parisc-linux] How do I use the FW scsi on 735?
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> -----Original Message-----
> From: van de Werken, Matthew (DEM, PH) 
> Sent: Monday, 23 April 2001 9:07
> To: 'parisc-linux@lists.parisc.org'
> Subject: RE: [parisc-linux] How do I use the FW scsi on 735?
> 
> 
> Forgot to mention, it's a custom kernel - there is a chance I 
> left out the necessary drivers. What is the driver for the FW 
> SCSI controller on the 735 please?
> 
> Cheers,
> MvdW
> 




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Subject: Re: FW: [parisc-linux] How do I use the FW scsi on 735?
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On Mon, Apr 23, 2001 at 09:08:33AM +1000, van de Werken, Matthew (DEM, PH) wrote:
> 
> 
> > -----Original Message-----
> > From: van de Werken, Matthew (DEM, PH) 
> > Sent: Monday, 23 April 2001 9:07
> > To: 'parisc-linux@lists.parisc.org'
> > Subject: RE: [parisc-linux] How do I use the FW scsi on 735?
> > 
> > 
> > Forgot to mention, it's a custom kernel - there is a chance I 
> > left out the necessary drivers. What is the driver for the FW 
> > SCSI controller on the 735 please?

I don't know, the relevant line from your boot messages is

7. Outfield FW SCSI (10) at 0xf0830000, versions 0x9, 0x0, 0x7c, 0x0, 0x0

anyone like to comment on what that device is?

You probably ought to include CONFIG_SCSI_LASI, CONFIG_SCSI_ZALON, and
CONFIG_SCSI_SYM53C8XX, and see if it makes a diference, but I'm not
expecting it to.

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] modules/modutils??
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On Sat, Apr 21, 2001 at 05:37:09AM +0100, Matthew Wilcox wrote:
> On Sat, Apr 21, 2001 at 12:24:52AM -0400, Brian S. Julin wrote:
> > 
> > Hmm.  What would I be doing wrong to produce this error:
> 
> http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2001-April/028890.html

and the patch you need to modutils, if you want to build your own,
is here:

http://lists.parisc-linux.org/pipermail/parisc-linux/2001-April/012181.html

Richard





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Subject: Re: FW: [parisc-linux] How do I use the FW scsi on 735?
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On Mon, Apr 23, 2001 at 05:02:58PM +0100, Richard Hirst wrote:
> > > Forgot to mention, it's a custom kernel - there is a chance I 
> > > left out the necessary drivers. What is the driver for the FW 
> > > SCSI controller on the 735 please?
> 
> I don't know, the relevant line from your boot messages is
> 
> 7. Outfield FW SCSI (10) at 0xf0830000, versions 0x9, 0x0, 0x7c, 0x0, 0x0
> 
> anyone like to comment on what that device is?

The relevant document is still missing from the linuxcare website,
despite a bug filed against it for over a month now.  Fortunately,
I kept a copy of the old website active, so you can view it at
http://puffin.external.hp.com/parisc/hp9000_models.html

The relevant quote is:

 The PCXS and PCXT models include the NCR 53C700 device at various
SCSI-Clock rates for the built-in Single-Ended (SE) SCSI controller.
These older models use the NCR 53C720 (40 MHz) SCSI controller (where
supported) with the Outfield (O) chip for the built-in SCSI controller
for the Fast-Wide-Differential (FWD) SCSI bus.  The PCXS and PCXT models
do not provide support for an internal PC Floppy drive.

> You probably ought to include CONFIG_SCSI_LASI, CONFIG_SCSI_ZALON, and
> CONFIG_SCSI_SYM53C8XX, and see if it makes a diference, but I'm not
> expecting it to.

So it seems like we need to find you an Outfield device & docs :-)

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] gcc -print-file-name=cpp
Date: Mon, 23 Apr 2001 19:52:39 +0100
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Our gcc prints `cpp' when invoked as gcc -print-file-name=cpp.  Every
other gcc in the world seems to output something along the lines of
/usr/lib/gcc-lib/i386-linux/2.95.2/cpp.  This includes other gcc 3.0
and 3.1 versions.  Would someone care to track this down?  This bug
currently requires a patch to glibc in order to get glibc to build,
and Ulrich rightly refuses to apply this patch to glibc CVS.

-- 
Revolutions do not require corporate support.




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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] gcc -print-file-name=cpp
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> Our gcc prints `cpp' when invoked as gcc -print-file-name=cpp.  Every
> other gcc in the world seems to output something along the lines of
> /usr/lib/gcc-lib/i386-linux/2.95.2/cpp.  This includes other gcc 3.0
> and 3.1 versions.  Would someone care to track this down?  This bug
> currently requires a patch to glibc in order to get glibc to build,
> and Ulrich rightly refuses to apply this patch to glibc CVS.

Is there a library file with the name `cpp' on your system?  In gcc 3.0,
the preprocessor is builtin, although there is a standalone processor
cpp0.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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From: Andreas Thienemann <andreas@thienemann.net>
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Subject: Re: [parisc-linux] Problems with glibc
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Hi Matthew,

On Sun, 22 Apr 2001, Matthew Wilcox wrote:

> Yes, I was getting it too.  After my recent kernel checkin to fix the
> stat64 struct, I was able to build glibc successfully.  My theory is that
> glibc was trying to call the *stat64 syscalls and the kernel was happily
> writing all over user memory.

> I would be grateful if you updated your (running) kernel to head of
> CVS and tried building glibc again.
Jepp. That did it. glibc was just build successful.
But you wouldn't believe how long it took on that system. Just 101MHz..

But thanks for the advice.
Now back to my quest on installing linux from  scratch. ;)

bye,
 andreas





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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 32-bit ABI for passing 64-bit quantities to functions
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the 32-bit ABI specifies that 64-bit quantities are passed aligned to
64-bit boundaries.  So int foo(int a, long long b) passes a in gr26, and
b in gr24 & gr23, leaving gr25 unused.  this is a problem in our syscall
interface, because glibc picks the 64-bit quantity apart into high and low
words and passes them individually.  meanwhile the syscall is prototyped
as above and expects the arguments in different registers... strangely,
this fails to work well.

now, all the syscalls are marked with `asmlinkage', which is currently
null on pa.  if we had an __attribute__((packed-args)) we could use that
with little pain.  alternatively, we could add a -fpacked-args compile
option, which tells gcc to always pack arguments.  we could compile the
whole kernel with this -- i don't know why this ABI choice was made.
Cary, could you comment?

-- 
Revolutions do not require corporate support.




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: FW: [parisc-linux] How do I use the FW scsi on 735?
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Cc: "van de Werken, Matthew (DEM, PH)" <M.Vandewerken@cat.csiro.au>,
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To: Matthew Wilcox <matthew@wil.cx>
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On Mon, Apr 23, 2001 at 06:51:35PM +0100, Matthew Wilcox wrote:
> On Mon, Apr 23, 2001 at 05:02:58PM +0100, Richard Hirst wrote:
> > > > Forgot to mention, it's a custom kernel - there is a chance I 
> > > > left out the necessary drivers. What is the driver for the FW 
> > > > SCSI controller on the 735 please?
> > 
> > I don't know, the relevant line from your boot messages is
> > 
> > 7. Outfield FW SCSI (10) at 0xf0830000, versions 0x9, 0x0, 0x7c, 0x0, 0x0
> > 
> > anyone like to comment on what that device is?
> 
> The relevant document is still missing from the linuxcare website,
> despite a bug filed against it for over a month now.  Fortunately,
> I kept a copy of the old website active, so you can view it at
> http://puffin.external.hp.com/parisc/hp9000_models.html

Ah, I remember that page from long ago; thanks.

> The relevant quote is:
> 
>  The PCXS and PCXT models include the NCR 53C700 device at various
> SCSI-Clock rates for the built-in Single-Ended (SE) SCSI controller.
> These older models use the NCR 53C720 (40 MHz) SCSI controller (where
> supported) with the Outfield (O) chip for the built-in SCSI controller
> for the Fast-Wide-Differential (FWD) SCSI bus.  The PCXS and PCXT models
> do not provide support for an internal PC Floppy drive.
> 
> > You probably ought to include CONFIG_SCSI_LASI, CONFIG_SCSI_ZALON, and
> > CONFIG_SCSI_SYM53C8XX, and see if it makes a diference, but I'm not
> > expecting it to.
> 
> So it seems like we need to find you an Outfield device & docs :-)

Oh, more h/w to annoy the wife with ;)

So CONFIG_SCSI_ZALON with some tweaks to talk to 53c720 on Outfield
rather than Zalon is needed.

Richard





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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] gcc -print-file-name=cpp
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On Mon, Apr 23, 2001 at 03:04:10PM -0400, John David Anglin wrote:
> Is there a library file with the name `cpp' on your system?

There's /lib/cpp and /usr/bin/cpp which are both symlinks to
/usr/bin/cpp-3.0.  There's also /usr/lib/gcc-lib/hppa-linux/3.0/tradcpp0
and /usr/lib/gcc-lib/hppa-linux/3.0/cpp0, neither of which are links
to anything.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] gcc -print-file-name=cpp
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> On Mon, Apr 23, 2001 at 03:04:10PM -0400, John David Anglin wrote:
> > Is there a library file with the name `cpp' on your system?
> 
> There's /lib/cpp and /usr/bin/cpp which are both symlinks to
> /usr/bin/cpp-3.0.  There's also /usr/lib/gcc-lib/hppa-linux/3.0/tradcpp0
> and /usr/lib/gcc-lib/hppa-linux/3.0/cpp0, neither of which are links
> to anything.

Try `gcc -print-search-dirs' and see if for some strange reason /lib isn't
in the library search path.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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From: Bjorn Helgaas <bjorn_helgaas@hp.com>
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Subject: [parisc-linux] parisc virtual aliasing
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I'm going through the parisc code related to the issue of virtual
aliasing in the dcache and need a little insight into how things
currently work.  Superdome deviates from the parisc architecture in
that non-equivalent aliasing (even for read-only pages, which the
architecture explicitly allows) causes HPMCs, so I'd like to tweak the
current support to make things work on Superdome.

In copy_user_page(), we currently do the copy using the permanent
kernel alias, then flush the destination from the dcache.  The flush
will avoid a conflict between the kernel alias and the future user
mapping, but we may still have a conflict with a previous user mapping
unless there has been a flush before the copy.  We could avoid the
conflict with a previous user mapping by either using an alias
equivalent to it (if we knew the old mapping) or flushing before the
copy.

In clear_user_page(), we currently purge the page from the dcache,
then clear it using a temporary alias equivalent to the eventual user
mapping.  I think superdome lets you do flushes and purges using
arbitrary aliases, so the purge should avoid a conflict between a
previous user mapping and the temporary kernel mapping.  The
equivalent alias should avoid any problem with the new user mapping.

We don't flush after clearing the page, so it seems like user attempts
to execute from the cleared page could read stale data from memory (on
all platforms, not just superdome).

So my questions:

	- In copy_user_page(), has the destination page already been
	  flushed somewhere else?  I think not, because I see virtual
	  index HPMCs there.

	- Do we know the previous user mapping?  If so, we could do
	  the copy using an equivalent alias to the previous mapping,
	  then flush once after the copy.  If not, we may have to
	  flush before and after the copy.

	- Are there any issues with the source of the copy?  We flush
	  only the destination, so I'm assuming the source is some
	  kernel page that has no user aliases to worry about.

	- In clear_user_page(), do we care whether user attempts to
	  execute from a cleared page get potentially stale data from
	  memory or zeros?

	- Lastly, a question not specific to superdome:
	  flush_user_dcache_range() and flush_user_icache_range() either
	  flush just the requested range or the entire cache, depending
	  on the size of the range.  Flushing just the range is done
	  with FDC, while flushing the entire cache is done with FDCE.
	  This seems like a problem for MP machines, because if you
	  flush a large enough range, the local cache will be flushed,
	  but remote ones will be untouched.

Bjorn






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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] gcc -print-file-name=cpp
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On Mon, Apr 23, 2001 at 04:22:46PM -0400, John David Anglin wrote:
> Try `gcc -print-search-dirs' and see if for some strange reason /lib isn't
> in the library search path.

/lib is indeed in the library search path, although not the programs.

-- 
Revolutions do not require corporate support.




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In-Reply-To: <20010423213726.H18464@parcelfarce.linux.theplanet.co.uk> from "Matthew Wilcox" at Apr 23, 2001 09:37:26 pm
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Xref: news.gmane.org gmane.linux.ports.parisc:10906

> On Mon, Apr 23, 2001 at 04:22:46PM -0400, John David Anglin wrote:
> > Try `gcc -print-search-dirs' and see if for some strange reason /lib isn't
> > in the library search path.
> 
> /lib is indeed in the library search path, although not the programs.

Looks like it's time to fire up the debugger.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: FW: [parisc-linux] How do I use the FW scsi on 735?
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On Mon, Apr 23, 2001 at 09:08:33AM +1000, van de Werken, Matthew (DEM, PH) wrote:
> 
> 
> > -----Original Message-----
> > From: van de Werken, Matthew (DEM, PH) 
> > Sent: Monday, 23 April 2001 9:07
> > To: 'parisc-linux@lists.parisc.org'
> > Subject: RE: [parisc-linux] How do I use the FW scsi on 735?
> > 
> > 
> > Forgot to mention, it's a custom kernel - there is a chance I 
> > left out the necessary drivers. What is the driver for the FW 
> > SCSI controller on the 735 please?

Can you try this patch, compile CONFIG_SCSI_ZALON in, and let me know
what happens?

Richard


Index: drivers/scsi/zalon7xx.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/scsi/zalon7xx.c,v
retrieving revision 1.6
diff -u -r1.6 zalon7xx.c
--- zalon7xx.c	2001/04/06 05:10:57	1.6
+++ zalon7xx.c	2001/04/23 20:58:30
@@ -58,6 +58,11 @@
 		"GSC SCSI (Zalon)", "53c720",
 		(void *) zalon_scsi_callback}, 
 
+	{HPHW_FIO, 0x007, 0, 0x0007c, 0x0, 0,
+		DRIVER_CHECK_HWTYPE | DRIVER_CHECK_SVERSION,
+		"GSC SCSI (Outfield)", "53c720",
+		(void *) zalon_scsi_callback}, 
+
 	{0,0,0,0,0,0, 0, (char *) NULL,(char *) NULL,(void *) NULL}
 };
 




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From: "Matthew van de Werken" <mvdw73@one.net.au>
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Subject: Re: FW: [parisc-linux] How do I use the FW scsi on 735?
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Xref: news.gmane.org gmane.linux.ports.parisc:10908

Hi Richard:

I added the patch (I assume I added it correctly - the resulting vmlinux was
different), and ran the new kernel, with no change. The FW scsi is still not
recognised.

I tried the following combinations of drivers, with the same result:

(All of the following were with HP-LASI on and HP-ZALON on):

* No other SCSI drivers;
* NCR53c7,8xx support as well;
* sym53c8xx support as well.

None of these combinations works; any other ideas from anyone on how to get
FW scsi support? I am using the snapshot taken I believe on 9 April, with
the cross-compiler from that date.

If anyone has FW scsi support going (at the same time as the narrow scsi),
if they could mail me their .config file to compile the kernel I'd
appreciate it.

I am of course assuming that the FW scsi isn't working, by the fact that the
FW disks aren't being recognised at boot time, and the fact that I can't
fdisk /dev/sdx, for x != a.

Cheers,
MvdW




----- Original Message -----
From: "Richard Hirst" <rhirst@linuxcare.com>
To: "van de Werken, Matthew (DEM, PH)" <M.Vandewerken@cat.csiro.au>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Tuesday, April 24, 2001 7:08 AM
Subject: Re: FW: [parisc-linux] How do I use the FW scsi on 735?


> On Mon, Apr 23, 2001 at 09:08:33AM +1000, van de Werken, Matthew (DEM, PH)
wrote:
> >
> >
> > > -----Original Message-----
> > > From: van de Werken, Matthew (DEM, PH)
> > > Sent: Monday, 23 April 2001 9:07
> > > To: 'parisc-linux@lists.parisc.org'
> > > Subject: RE: [parisc-linux] How do I use the FW scsi on 735?
> > >
> > >
> > > Forgot to mention, it's a custom kernel - there is a chance I
> > > left out the necessary drivers. What is the driver for the FW
> > > SCSI controller on the 735 please?
>
> Can you try this patch, compile CONFIG_SCSI_ZALON in, and let me know
> what happens?
>
> Richard
>
>
> Index: drivers/scsi/zalon7xx.c
> ===================================================================
> RCS file: /home/cvs/parisc/linux/drivers/scsi/zalon7xx.c,v
> retrieving revision 1.6
> diff -u -r1.6 zalon7xx.c
> --- zalon7xx.c 2001/04/06 05:10:57 1.6
> +++ zalon7xx.c 2001/04/23 20:58:30
> @@ -58,6 +58,11 @@
>   "GSC SCSI (Zalon)", "53c720",
>   (void *) zalon_scsi_callback},
>
> + {HPHW_FIO, 0x007, 0, 0x0007c, 0x0, 0,
> + DRIVER_CHECK_HWTYPE | DRIVER_CHECK_SVERSION,
> + "GSC SCSI (Outfield)", "53c720",
> + (void *) zalon_scsi_callback},
> +
>   {0,0,0,0,0,0, 0, (char *) NULL,(char *) NULL,(void *) NULL}
>  };
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
>





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From: Russ Pridemore <pridemore@charter.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] identifying my HP
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I inherited a decommisioned HP 700 workstation and I'm planning on putting
Linux on it as time permits.  First of all, I'm not certain of what I have
here!  Its a pizza-box that says Apollo series 700 on the front.  Under the
little cover with the LEDs, it says model A1950A...

I don't have an HIL kbd or mouse, a monitor with RGB BNC connectors, or
even a SCSI hard drive to plug in (doesn't seem to be an internal drive),
but want to hook up a serial console and try to boot Linux through NFS
from my Intel-Linux machine.  Should be a learning experience, to say the
least. :-)

Any help would be most appreciated,
Russ






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From: willy@ldl.fc.hp.com (Matthew Wilcox)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] glibc 2.2.3
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i've been merging patches from our glibc tree with upstream CVS (see
http://sources.redhat.com/ml/bug-glibc/2001-04/ for details).  I've ported
most of the remaining changes from our tree into a snapshot of today's
upstream CVS.  The diff is availabe at

ftp://puffin.external.hp.com/pub/parisc/src/libc-2.2.3-A2.diff

it's a mishmash of CVS diffs and diffs against /dev/null (to cope with the
5 new files in our tree).  I'll send some more of this to Ulrich tomorrow.

i haven't actually dared install this libc yet, so if you want to be the
first.... :-)





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: FW: [parisc-linux] How do I use the FW scsi on 735?
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Xref: news.gmane.org gmane.linux.ports.parisc:10911

On Wed, Apr 25, 2001 at 10:21:17AM +1000, Matthew van de Werken wrote:
> Hi Richard:
> 
> I added the patch (I assume I added it correctly - the resulting vmlinux was
> different), and ran the new kernel, with no change. The FW scsi is still not
> recognised.

Shame :(  The Zalon driver is the one you are interested in.  My B180
with a Bluefish (Zalon based) FWD card runs the sim700, zalon, and
sym53c8xx drivers all at the same time, no problem.

It's possible I got the parameters wrong in my patch; the aim is to
cause drivers/scsi/zalon7xx.c:zalon_scsi_callback() to get called
for your interface.  It could be that is getting called but failing
for some reason.  If it is called, you should at least be getting
a line

        ......: Zalon vers field is ......

output on boot.

If you don't see that, perhaps you can investigate by adding a few
printk()'s to see what I got wrong.

zalon7xx_detect() is surely getting called, and that uses register_driver()
in arch/parisc/kernel/drivers.c to try and match your cards parameters
against one of the entries in zalon_scsi_drivers[].  Try and figure out
why that match is not succeeding for your scsi interface.

Richard





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From: "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
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Subject: RE: [parisc-linux] PA/Linux iso 0.6 is out!
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Xref: news.gmane.org gmane.linux.ports.parisc:10912

Hi all,

A quick try of the 32 bits version with STI console on a C110.
After booting from cdrom, i get startup info and the message switching to
STI. (looks very promissing..)
Again some more messages and a login prompt.
There it stops, the system does not read input from my keyboard, so can not
login....

Will try on other systems later...

Hans.

> -----Original Message-----
> From:	Xavier Debacker [SMTP:xavier.debacker@esiee.net]
> Sent:	Thursday, April 19, 2001 12:27 PM
> To:	parisc-linux@lists.parisc-linux.org;
> parisc-linux-announce@lists.parisc-linux.org
> Subject:	[parisc-linux] PA/Linux iso 0.6 is out!
> 
> New CD iso images can be downloaded at
> http://mkhppa1.esiee.fr/en/isos.html
> 
> 3 versions:
> 32bits kernel with serial console
> 32bits kernel with STI console
> 64bits kernel with serial console
> 
> all kernels are on each iso, the only difference is the default booting
> kernel.
> 
> Enjoy, and give us feedback :-)
> 
> Xavier Debacker
> ESIEE Team
> http://www.esiee.fr/puffin
> 
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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"Witvliet, Hans" a =E9crit :

> Hi all,
>
> A quick try of the 32 bits version with STI console on a C110.
> After booting from cdrom, i get startup info and the message switching =
to
> STI. (looks very promissing..)
> Again some more messages and a login prompt.
> There it stops, the system does not read input from my keyboard, so can=
 not
> login....
>
> Will try on other systems later...
>
> Hans.

Hi Hans,

Do you use HIL or PS/2 Keyboard ?

Only PS/2 keyboard is supported.

Xavier.





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Subject: Re: [parisc-linux] PA/Linux iso 0.6 is out!
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Hi,

Running the 32 bit STI on a 712/60 looks good. No boot problems. Nice display.
palo is giving me some trouble, so I'm not booting from HD yet.
Not all scancodes are recognized, and vi panics the kernel when hitting ESC
(this is very annoying). Some other kernel panics are probably also caused by
the keyboard.

Looking forward to running X...

Regards,
Robin.

"Witvliet, Hans" wrote:
> A quick try of the 32 bits version with STI console on a C110.
> After booting from cdrom, i get startup info and the message switching to
> STI. (looks very promissing..)
> Again some more messages and a login prompt.
> There it stops, the system does not read input from my keyboard, so can not
> login....
> 
> Will try on other systems later...




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From: "Matthew van de Werken" <mvdw73@one.net.au>
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Subject: Re: FW: [parisc-linux] How do I use the FW scsi on 735?
Date: Wed, 25 Apr 2001 19:48:51 +1000
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To: "Richard Hirst" <rhirst@linuxcare.com>
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Hi Richard:

I'm a little bit of a beginner at all this kernel hacking business (well, a
rank beginner would be more accurate)...

What I'll do is turn on the verbose SCSI error reporting, and the SCSI
logging facility and try again.

I''l have to do a 'man printk' to have a look at what that function's syntax
is, then take it from there.

Cheers,
MvdW [who, despite lack of total success is having a lot of fun...]



----- Original Message -----
From: "Richard Hirst" <rhirst@linuxcare.com>
To: "Matthew van de Werken" <mvdw73@one.net.au>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Wednesday, April 25, 2001 6:12 PM
Subject: Re: FW: [parisc-linux] How do I use the FW scsi on 735?


> On Wed, Apr 25, 2001 at 10:21:17AM +1000, Matthew van de Werken wrote:
> > Hi Richard:
> >
> > I added the patch (I assume I added it correctly - the resulting vmlinux
was
> > different), and ran the new kernel, with no change. The FW scsi is still
not
> > recognised.
>
> Shame :(  The Zalon driver is the one you are interested in.  My B180
> with a Bluefish (Zalon based) FWD card runs the sim700, zalon, and
> sym53c8xx drivers all at the same time, no problem.
>
> It's possible I got the parameters wrong in my patch; the aim is to
> cause drivers/scsi/zalon7xx.c:zalon_scsi_callback() to get called
> for your interface.  It could be that is getting called but failing
> for some reason.  If it is called, you should at least be getting
> a line
>
>         ......: Zalon vers field is ......
>
> output on boot.
>
> If you don't see that, perhaps you can investigate by adding a few
> printk()'s to see what I got wrong.
>
> zalon7xx_detect() is surely getting called, and that uses
register_driver()
> in arch/parisc/kernel/drivers.c to try and match your cards parameters
> against one of the entries in zalon_scsi_drivers[].  Try and figure out
> why that match is not succeeding for your scsi interface.
>
> Richard
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
>





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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] PA/Linux iso 0.6 is out!
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Hi Robin,

	We are aware of this trouble. We are currently working on that! We hope that
will soon be fixed. We are looking at SC_LIM in driver/char/hp_keyb.c, here. If
anybody has a good idea on it...

Bye, Thomas
ESIEE Team




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From: Christoph Plattner <christoph.plattner@alcatel.at>
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Subject: [parisc-linux] Bug in kernel: console support STI/serial
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Hello PA-RISCers !

I tried the STI console for the first time on a 712/60
workstation but found a problem in handling console
devices.

I compiled the kernel with SUPPORT for both consoles,
the serial and the STI.

Per definition:
---------------
If no `console=xxx' the default is `tty0', and the
"current" virtual console is used.

The user can also select the console via command line
parameter for kernel: `console=ttyS0' for example for
the serial console.

Problem:
--------
On the current kernel, if I do not use the `console='
parameter, the kernel does following:

Boot,...
Output:
  Switching from PDC console ...

And now on the serial line !!!!! the output:
  Switching to STI console ....

Here is the error: Linux know's, it must use the STI
but uses the serial console.

I have not analysed the code fully, yet. Dependent on
my spare time, I can deliver a bug fix or point out the 
position of the wrong code.

------

By the way: How can I set the 712/60 to use serial
PCD console (command `path' does not work for console !)

Cheers
	Christoph P.

------------------------------------------------------------
private:  christoph.plattner@gmx.at
company:  christoph.plattner@alcatel.at




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From: "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
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Subject: RE: [parisc-linux] PA/Linux iso 0.6 is out!
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Hi Xavier,

Both keyboard and mouse on C110 are "PS/2"
Before switching to STI, keyboard works OK, (as i have to interupt boot
sequence, perfrom a SEArch and a BOot P2 (in my case)

Hans.


> -----Original Message-----
> From:	Xavier Debacker [SMTP:xavier.debacker@esiee.net]
> Sent:	Wednesday, April 25, 2001 11:22 AM
> To:	Witvliet, Hans
> Cc:	parisc-linux@lists.parisc-linux.org
> Subject:	Re: [parisc-linux] PA/Linux iso 0.6 is out!
>=20
> "Witvliet, Hans" a =E9crit :
>=20
> > Hi all,
> >
> > A quick try of the 32 bits version with STI console on a C110.
> > After booting from cdrom, i get startup info and the message =
switching
> to
> > STI. (looks very promissing..)
> > Again some more messages and a login prompt.
> > There it stops, the system does not read input from my keyboard, so =
can
> not
> > login....
> >
> > Will try on other systems later...
> >
> > Hans.
>=20
> Hi Hans,
>=20
> Do you use HIL or PS/2 Keyboard ?
>=20
> Only PS/2 keyboard is supported.
>=20
> Xavier.
>=20
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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Hallo werte RISC-Anwender

Ich habe eine Frage und mache es auch kurz.
Ich habe eine Workstation HP Visualize C180, und kann ich darauf Linux =
laufen lassen?
Kann ich Linux auch ohne die Boot-CD von HP-UX installieren? Und warum =
funktioniert
der Dounload von dem CD-Image mit Endung RAW nicht? Ist dieser =
=FCberhaupt f=FCr meinen
Rechner gedacht? weil der andere ja nicht funktionieren soll!
=DCber eine Antwort w=E4re ich sehr dankbar und w=FCrde mir schon sehr =
viel weiter helfen.
Im Vorraus Danke und beste Gr=FC=DFe von Thomas
meine e-Mail ist: T.Weidisch@t-online.de


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<META content=3Dtext/html;charset=3Diso-8859-1 =
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</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT color=3D#000000 face=3DArial size=3D2>Hallo werte=20
RISC-Anwender</FONT></DIV>
<DIV><FONT color=3D#000000 face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 face=3DArial size=3D2>Ich habe eine Frage und =
mache es auch=20
kurz.</FONT></DIV>
<DIV><FONT color=3D#000000 face=3DArial size=3D2>Ich habe eine =
Workstation HP=20
Visualize C180, und kann ich darauf Linux laufen lassen?</FONT></DIV>
<DIV><FONT color=3D#000000 face=3DArial size=3D2>Kann ich Linux auch =
ohne die Boot-CD=20
von HP-UX installieren? Und warum funktioniert</FONT></DIV>
<DIV><FONT color=3D#000000 face=3DArial size=3D2>der Dounload von dem =
CD-Image mit=20
Endung RAW nicht? Ist dieser &uuml;berhaupt f&uuml;r meinen</FONT></DIV>
<DIV><FONT color=3D#000000 face=3DArial size=3D2>Rechner gedacht? weil =
der andere ja=20
nicht funktionieren soll!</FONT></DIV>
<DIV><FONT color=3D#000000 face=3DArial size=3D2>&Uuml;ber eine Antwort =
w&auml;re ich=20
sehr dankbar und w&uuml;rde mir schon sehr viel weiter =
helfen.</FONT></DIV>
<DIV><FONT color=3D#000000 face=3DArial size=3D2>Im Vorraus Danke und =
beste=20
Gr&uuml;&szlig;e von Thomas</FONT></DIV>
<DIV><FONT color=3D#000000 face=3DArial size=3D2>meine e-Mail ist: <A=20
href=3D"mailto:T.Weidisch@t-online.de">T.Weidisch@t-online.de</A></FONT><=
/DIV>
<DIV><FONT color=3D#000000 face=3DArial =
size=3D2></FONT>&nbsp;</DIV></BODY></HTML>

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Hello,
	thanks for the prompt answer.

First of all Linux supports more than one console,
(defined with commans behind `console='), but this
is not the toppic here.

In a normal (iX86) linux kernel many console supports
can be activated (per config), but only one (!) of these
consoles are used !

So I compiled in support for serial and support for
STI, but I only use STI (default, no `console=' 
parameter used).

The output shows the usage of STI, too. So Linux decide
to use STI, but the output (and input) is done on the
serial console driver. This is really a bug.

The HELP button in for serial console support definitly
"says", that this only activates the support, but the 
serial console is only used, if `console=ttyS0' is
specified.

-----

BTW: Is there anyone who knows how to activate 
serial console on the 712/60 in the PDC console.
Normally "path console" or "path keyboard" can be
used. But not on 712/60 !!

-------

With friendly regards
	Christph Plattner


Thomas Marteau wrote:
> 
> Hi Christoph
> 
>         As far as I know, the kernel is not capable to manage two consoles. But, if you
> want to specify one precisely, you can try to give a console parameter to the
> kernel with "console=tty"
> > By the way: How can I set the 712/60 to use serial
> > PCD console (command `path' does not work for console !)
> >
> > Cheers
> >         Christoph P.
> >
> Good Luck, Thomas
> ESIEE Team

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955




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From: Christoph Plattner <christoph.plattner@alcatel.at>
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Subject: Re: [parisc-linux] Anfrage zu Risc
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Hallo !

Es ist eine gute Idee, in englisg zu schreiben !
Da ist die ganze Welt vertreten !!

Please us the English language, so everone can 
understand you here !!

With friendly regards
	C. Plattner


> "pop.btx.dtag.de" wrote:
> 
> Hallo werte RISC-Anwender
> 
> Ich habe eine Frage und mache es auch kurz.
> Ich habe eine Workstation HP Visualize C180, und kann ich darauf Linux
> laufen lassen?
> Kann ich Linux auch ohne die Boot-CD von HP-UX installieren? Und warum
> funktioniert
> der Dounload von dem CD-Image mit Endung RAW nicht? Ist dieser
> berhaupt fr meinen
> Rechner gedacht? weil der andere ja nicht funktionieren soll!
> ber eine Antwort wre ich sehr dankbar und wrde mir schon sehr viel
> weiter helfen.
> Im Vorraus Danke und beste Gre von Thomas
> meine e-Mail ist: T.Weidisch@t-online.de
> 

--




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From: Matthieu Delahaye <delahaym@esiee.fr>
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Subject: Re: [parisc-linux] Anfrage zu Risc
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To: Christoph Plattner <christoph.plattner@alcatel.at>,
	parisc-linux <parisc-linux@lists.parisc-linux.org>
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Tres cher Christoph

Je suis d'accord avec vous... Sinon on ne se comprend
plus!! ;-)

Matthieu

Christoph Plattner wrote:
> 
> Hallo !
> 
> Es ist eine gute Idee, in englisg zu schreiben !
> Da ist die ganze Welt vertreten !!
> 
> Please us the English language, so everone can
> understand you here !!
> 
> With friendly regards
>         C. Plattner
> 
> > "pop.btx.dtag.de" wrote:
> >
> > Hallo werte RISC-Anwender
> >
> > Ich habe eine Frage und mache es auch kurz.
> > Ich habe eine Workstation HP Visualize C180, und kann ich darauf Linux
> > laufen lassen?
> > Kann ich Linux auch ohne die Boot-CD von HP-UX installieren? Und warum
> > funktioniert
> > der Dounload von dem CD-Image mit Endung RAW nicht? Ist dieser
> > berhaupt fr meinen
> > Rechner gedacht? weil der andere ja nicht funktionieren soll!
> > ber eine Antwort wre ich sehr dankbar und wrde mir schon sehr viel
> > weiter helfen.
> > Im Vorraus Danke und beste Gre von Thomas
> > meine e-Mail ist: T.Weidisch@t-online.de
> >
> 
> --
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
Matthieu Delahaye
ESIEE Team
http://mkhppa1.esiee.fr/




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On Wed, Apr 25, 2001 at 01:59:20PM +0200, pop.btx.dtag.de wrote:
> Ich habe eine Workstation HP Visualize C180, und kann ich darauf Linux laufen lassen?

"Can I run Linux on my C180?"

Yup, it should work fine.

> Kann ich Linux auch ohne die Boot-CD von HP-UX installieren?
"Can I install Linux without the HPUX Boot CD?'

Yes.

> Und warum funktioniert der Dounload von dem CD-Image mit Endung RAW nicht?

"Why doesn't the CD Image download in raw mode?"

I have no idea :-)  It would help if you said which image you were trying
to download.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] glibc 2.2.3
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On Wed, Apr 25, 2001 at 01:07:22AM -0600, Matthew Wilcox wrote:
> I've ported most of the remaining changes from our tree into a snapshot of today's
> upstream CVS.

I meant to say more about this last night.  The things I've skipped are:

 * a patch which does #define malloc(x) memalign(16,x)

This clearly is insufficient as Richard pointed out a few weeks ago.
We need to get malloc fixed differently.

 * Jes' patch to define ELFOSABI_LINUX and various macros which use that.
   The macros are only defined, not used, so omitting them has no
   ill-effect.  Ulrich has declined to accept these patches as part of
   glibc until we explain why it was needed.  Jes doesn't remember why
   he made this patch, so I'm leaving it out.  The curious can find the
   discussion in the mailing list archives from last december.

-- 
Revolutions do not require corporate support.




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From: Andreas Thienemann <andreas@thienemann.net>
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Subject: [parisc-linux] Even more glibc problems...
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Hi,

I just can't seem to get a glibc to compile on a hppa box.
The sources are the current CVS checkouts, the build box is booted with
the debian nfsroot 20010404.

The glibc compile fails with the debian compiler and only succeeds with
the CVS compiler 'gcc version 3.0 20010416 (prerelease)'.

Now, doing a make check after building the glibc fails with the following
remark:

make[2]: *** [/mnt/lfs/usr/src/glibc-build/math/test-float.out] Error 1
make[2]: Leaving directory `/mnt/lfs/usr/src/glibc/math'
make[1]: *** [math/tests] Error 2
make[1]: Leaving directory `/mnt/lfs/usr/src/glibc'
make: *** [check] Error 2

Are there some problems with the floating point calculations?

bye,
 andreas





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Andreas Thienemann <andreas@thienemann.net> writes:

> Now, doing a make check after building the glibc fails with the following
> remark:
> 
> make[2]: *** [/mnt/lfs/usr/src/glibc-build/math/test-float.out] Error 1
> make[2]: Leaving directory `/mnt/lfs/usr/src/glibc/math'
> make[1]: *** [math/tests] Error 2

Why don't you read math/README.libm-test?

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] New hppa glibc 2.2.1 packages
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Hi hppa hackers,

I have built new hppa glibc packages. Please read this whole message before 
installing. I have placed them at,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/newlibc-20010425/

They are an update of the 2.2.1 packages that were in the base tarball and 
ESIEE isos and include the following changes,

- support for large files
- fix 32-bit UIDs/GIDs
- fix minor floating-point bug
- make SHM work on 64-bit
- make getdents64 work
- make us suck less at resource limits

If you need these features, need to do a new install, or feel like upgrading 
then you should grab them. If you can wait a few days then you might want to 
wait for the 2.2.3 based packages which will be available shortly after the 
upstream 2.2.3 release.

Install Notes
-------------
You must upgrade your kernel before installing these packages. Your kernel 
must be from April 24th or later.

If you have been apt-get upgrading you may have a newer libdb2 package 
installed that shares files with this libc package. If you see this error,

   Unpacking replacement libc6 ...
   dpkg: error processing libc6_2.2.1-1_hppa.deb (--install):
   trying to overwrite `/lib/libdb.so.3', which is also in package libdb2

Then run the following,

   dpkg --install --force-overwrite libc6_2.2.1-1_hppa.deb
   apt-get --reinstall install libdb2

Once we've moved to newer packages this problem will go away.

Post any problems to the list.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: [parisc-linux] do_page_fault() pid=2456 command='ldd'
Date: Wed, 25 Apr 2001 19:53:51 -0600
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Using a kernel built from 4/25 and "dpkg-buildpackage -b -uc" of
the iptables-1.2.1a sources.  I've built this package several times
before w/o problems but with slightly older kernels. I haven't tried
to reproduce this or checked to see how reproducible it is.
If anyone has an idea what caused this:

do_page_fault() pid=2456 command='ldd' type=15 address=0x0009d0b0
vm_start = 0x00084000, vm_end = 0x0009d000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001111
r0-3     0000000000000000 0000000000080068 000000000000c000 000000000009a250
r4-7     000000000009b7f0 0000000000000000 00000000ffffffff 0000000000000000
r8-11    00000000ffffffff 0000000000000000 000000000009aa10 000000000009b6b0
r12-15   0000000000000000 00000000ffffffff 000000000009b870 0000000000000000
r16-19   0000000000000000 0000000000000802 0000000000081868 0000000000000000
r20-23   000000000009ac14 00000000412e8480 0000000000000001 0000000000088868
r24-27   0000000000080080 000000000009ac10 0000000000080068 0000000000080068
r28-31   0000000000000001 0000020000000000 00000000faf01d40 000000004016ebd7
sr0-3    000000000009f100 000000000009f100 0000000000000000 000000000009f100
sr4-7    000000000009f100 000000000009f100 000000000009f100 000000000009f100

IASQ: 000000000009f100 000000000009f100 IAOQ: 000000000000c007 000000000000c00b
 IIR: 65787400    ISR: 000000000009f100  IOR: 000000000009d0b0
ORIG_R28: 000000000009ac10




From - Thu Nov 08 21:17:27 2018
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Hello!

It's nice to see Linux working nicely on those HP's. I've successfully ran
Linux on 715/80, 715/100 and 712/80.

Now I have Visualize C160, which has PCI-slots. Does Linux/pa-risc support
PCI-slots? Any idea if tulip-driver will work on Linux/pa-risc? or some
other pci-networkcard-driver? (I'd like to get 10/100Mbps network to this
machine..)

Are there known problems with STI? My machines had maximum of couple of
hours uptime when STI was enabled. Without STI those machines have been
running perfectly..


How about XFree? Is someone working on the port?


Thank you!


- Pasi K=E4rkk=E4inen

                                   ^
                                .     .
                                 Linux
                              /    -    \
                             Choice.of.the
                           .Next.Generation.





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Subject: Re: [parisc-linux] Couple of things
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             <Pine.LNX.4.33.0104261324110.24303-100000@edu.joroinen.fi> 
Xref: news.gmane.org gmane.linux.ports.parisc:10930

=?ISO-8859-1?Q?Pasi_K=E4rkk=E4inen?= wrote:
> 
> Hello!
> 
> It's nice to see Linux working nicely on those HP's. I've successfully ran
> Linux on 715/80, 715/100 and 712/80.
> 
> Now I have Visualize C160, which has PCI-slots. Does Linux/pa-risc support
> PCI-slots? Any idea if tulip-driver will work on Linux/pa-risc? or some
> other pci-networkcard-driver? (I'd like to get 10/100Mbps network to this
> machine..)

Yes - the only open problem at the moment is copying from CD-ROM to disk.
Net->disk and disk->disk work fine. So if you can install via NFS root
you can try it.

> Are there known problems with STI? My machines had maximum of couple of
> hours uptime when STI was enabled. Without STI those machines have been
> running perfectly..

File bugs at bugs.parisc-linux.org.
The ESIEE team and Helge Deller have been working on STI support.
 
> How about XFree? Is someone working on the port?

I've built Xfree86 debs (with guidance from Alan Cox's patch) last week
(and those are available on pehc - soon via debian mirror). The changes
are integrated into the debian source (unstable) thanks to Branden Robinson
and Bdale Garbee. xterm and xlogo seem to work.  But I haven't tried to
run the Xserver yet. Hypothetically I should be able to run Xnest but
don't have time to fool with it right now.

And the code for HPUX (2d) support is supposed to be in the X11 consortium
source tree. I haven't looked to see how much of that is in Xfree86.
Any takers?

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: [parisc-linux] HP 710 and miscellaneous questions ...
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Xref: news.gmane.org gmane.linux.ports.parisc:10931

I see "[t]his mailing list exists to serve the developers." Where is
the appropriate forum to discuss basic usage?

I have an HP 700 Series Apollo Model 710. As far as I can tell it has no
usable operating system (no HPUX). I can turn it on and connect to a
series of (CMOS?/BIOS?) prompts and menus via a serial cable. It does not
have a CD drive. I do not have HPUX to do any cross-compiles. (I have
installed a variety of flavours of BSD and Linux hundreds of times, but
always on i386 architectures.)

I want to use Linux (or BSD) on it. The PA-RISC webpages have links for
documentation, but none appear to explain a basic install. Where is the
documentation for installing Linux on a hard drive?

The software page (http://www.parisc-linux.org/software/) says "nfsroot"
is the easiest way; but the instructions say "you have to build on
HP/UX."

Is there simply a filesystem image (with kernel and userspace) that I can
dd to a harddrive that I can then use to boot my HP 710)? If so, where is
it? (And where is this documented?)

Also, I see an ISO image at
ftp://puffin.external.hp.com/pub/parisc/cd-images/; is there any
(easy) way to convert this ISO image to an image that I can dd on to my
hardrive (to use to boot)?

Thanks,

   Jeremy C. Reed
   http://bsd.reedmedia.net/





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Subject: Re: [parisc-linux] HP 710 and miscellaneous questions ...
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Xref: news.gmane.org gmane.linux.ports.parisc:10932

You will find the HP710 is not going to work for you at this moment. The 710
has a ASP bus that has some problems with the interrupt controller (that is
the suspicion of the pa-risc linux group). I have been unsuccessful in
getting it to run. The network card stops working at boot and the scsi
driver will not detect any scsi devices.

I went one step further and created a large ramdisk (8-9 meg) and tried to
boot and run entirely in the ram disk. Init fails as soon as the kernel
passes control to it. I would recommend using mklinux for the time being,
there is a lot of interest in that machine but the documentation that is
needed to resolve the interrupt problem is not in the hands of the right
people. I would like to be optimistic and say in 6 months or so the pa-risc
linux gurus out there will have a fix.

mklinux:
ftp://ftp.cirr.com/pub/hppa/mklinux/
basically you d/l a disk image and the usr.tar, var.tar files and dd the
image to a hard drive on a second machine.

I hope this helps


----- Original Message -----
From: "Jeremy C. Reed" <reed@reedmedia.net>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Thursday, April 26, 2001 4:27 PM
Subject: [parisc-linux] HP 710 and miscellaneous questions ...


> I see "[t]his mailing list exists to serve the developers." Where is
> the appropriate forum to discuss basic usage?
>
> I have an HP 700 Series Apollo Model 710. As far as I can tell it has no
> usable operating system (no HPUX). I can turn it on and connect to a
> series of (CMOS?/BIOS?) prompts and menus via a serial cable. It does not
> have a CD drive. I do not have HPUX to do any cross-compiles. (I have
> installed a variety of flavours of BSD and Linux hundreds of times, but
> always on i386 architectures.)
>
> I want to use Linux (or BSD) on it. The PA-RISC webpages have links for
> documentation, but none appear to explain a basic install. Where is the
> documentation for installing Linux on a hard drive?
>
> The software page (http://www.parisc-linux.org/software/) says "nfsroot"
> is the easiest way; but the instructions say "you have to build on
> HP/UX."
>
> Is there simply a filesystem image (with kernel and userspace) that I can
> dd to a harddrive that I can then use to boot my HP 710)? If so, where is
> it? (And where is this documented?)
>
> Also, I see an ISO image at
> ftp://puffin.external.hp.com/pub/parisc/cd-images/; is there any
> (easy) way to convert this ISO image to an image that I can dd on to my
> hardrive (to use to boot)?
>
> Thanks,
>
>    Jeremy C. Reed
>    http://bsd.reedmedia.net/
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
>




From - Thu Nov 08 21:17:27 2018
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From: "Peter Weatherall" <peter.weatherall@3beans.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 710 and miscellaneous questions ...
Date: Thu, 26 Apr 2001 16:19:09 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:10933

I have a C160. When I boot it , I see the following message -

>>>>
Dino version 2.1 (bridge mode) found at 0xf1600000


The GSCtoPCI (Dino hrev 1) bus converter found may exhibit
data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.
Systems shipped after Aug 20, 1997 will not exhibit this problem.
Models affected: C180, C160, C160L, B160L, and B132L workstations.

dino_bridge_init: IO_ADDR_EN hasn't been configured.
kernel BUG at dino.c:795!
>>>>>

How can I determine if my c160 is affected ? what's this kernel bug at
dino.c all about and is there some Dino documentation available ?

Thanks
Peter

Where can I learn more about





----- Original Message -----
From: "Brian Stewart" <pdksh@hotmail.com>
To: "Jeremy C. Reed" <reed@reedmedia.net>;
<parisc-linux@lists.parisc-linux.org>
Sent: Thursday, April 26, 2001 3:57 PM
Subject: Re: [parisc-linux] HP 710 and miscellaneous questions ...


> You will find the HP710 is not going to work for you at this moment. The
710
> has a ASP bus that has some problems with the interrupt controller (that
is
> the suspicion of the pa-risc linux group). I have been unsuccessful in
> getting it to run. The network card stops working at boot and the scsi
> driver will not detect any scsi devices.
>
> I went one step further and created a large ramdisk (8-9 meg) and tried to
> boot and run entirely in the ram disk. Init fails as soon as the kernel
> passes control to it. I would recommend using mklinux for the time being,
> there is a lot of interest in that machine but the documentation that is
> needed to resolve the interrupt problem is not in the hands of the right
> people. I would like to be optimistic and say in 6 months or so the
pa-risc
> linux gurus out there will have a fix.
>
> mklinux:
> ftp://ftp.cirr.com/pub/hppa/mklinux/
> basically you d/l a disk image and the usr.tar, var.tar files and dd the
> image to a hard drive on a second machine.
>
> I hope this helps
>
>
> ----- Original Message -----
> From: "Jeremy C. Reed" <reed@reedmedia.net>
> To: <parisc-linux@lists.parisc-linux.org>
> Sent: Thursday, April 26, 2001 4:27 PM
> Subject: [parisc-linux] HP 710 and miscellaneous questions ...
>
>
> > I see "[t]his mailing list exists to serve the developers." Where is
> > the appropriate forum to discuss basic usage?
> >
> > I have an HP 700 Series Apollo Model 710. As far as I can tell it has no
> > usable operating system (no HPUX). I can turn it on and connect to a
> > series of (CMOS?/BIOS?) prompts and menus via a serial cable. It does
not
> > have a CD drive. I do not have HPUX to do any cross-compiles. (I have
> > installed a variety of flavours of BSD and Linux hundreds of times, but
> > always on i386 architectures.)
> >
> > I want to use Linux (or BSD) on it. The PA-RISC webpages have links for
> > documentation, but none appear to explain a basic install. Where is the
> > documentation for installing Linux on a hard drive?
> >
> > The software page (http://www.parisc-linux.org/software/) says "nfsroot"
> > is the easiest way; but the instructions say "you have to build on
> > HP/UX."
> >
> > Is there simply a filesystem image (with kernel and userspace) that I
can
> > dd to a harddrive that I can then use to boot my HP 710)? If so, where
is
> > it? (And where is this documented?)
> >
> > Also, I see an ISO image at
> > ftp://puffin.external.hp.com/pub/parisc/cd-images/; is there any
> > (easy) way to convert this ISO image to an image that I can dd on to my
> > hardrive (to use to boot)?
> >
> > Thanks,
> >
> >    Jeremy C. Reed
> >    http://bsd.reedmedia.net/
> >
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> >
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
>





From - Thu Nov 08 21:17:27 2018
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From: "Peter Weatherall" <peter.weatherall@3beans.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Dino
Date: Thu, 26 Apr 2001 16:28:13 -0500
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(I'm reposting this with the correct subject) -


I have a C160. When I boot it , I see the following message -


> start snip >>>>
Dino version 2.1 (bridge mode) found at 0xf1600000


The GSCtoPCI (Dino hrev 1) bus converter found may exhibit
data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.
Systems shipped after Aug 20, 1997 will not exhibit this problem.
Models affected: C180, C160, C160L, B160L, and B132L workstations.
 
dino_bridge_init: IO_ADDR_EN hasn't been configured.
kernel BUG at dino.c:795!
> end snip >>>>>
 
How can I determine if my c160 is affected ? what's this kernel bug at
dino.c all about and is there some Dino documentation available ?
 
Thanks
Peter






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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] SETI@home
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Hi all,

	SETI guys just announced that our version was working! To see it, follow this
link http://setiathome.ssl.berkeley.edu/unix.html

And, at http://www.esiee.fr/puffin, a client will be available as soon as
possible. We are currently running tests with our A500 and with a 712...

Once again, thanks to Bruno Iglesias for porting this good test for the floating
computation of our PA/Linux.

Good day, Thomas
ESIEE Team




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Dino
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Xref: news.gmane.org gmane.linux.ports.parisc:10936

"Peter Weatherall" wrote:
> Dino version 2.1 (bridge mode) found at 0xf1600000
> 
> 
> The GSCtoPCI (Dino hrev 1) bus converter found may exhibit
> data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.
> Systems shipped after Aug 20, 1997 will not exhibit this problem.
> Models affected: C180, C160, C160L, B160L, and B132L workstations.
> 
> dino_bridge_init: IO_ADDR_EN hasn't been configured.
> kernel BUG at dino.c:795!
> >>>>>

I added this text about 1.5 years ago.


> How can I determine if my c160 is affected ? what's this kernel bug at
> dino.c all about and is there some Dino documentation available ?

The bug is documented in the Dino3.1 Errata. I don't recall if that got
published. Search the mail archive for "corruption".

With a dino2.1, I'd be pretty certain your box will be affected.
My understanding was HP replaced old dino chips with 3.1 versions.
For customers, this meant a board swap.

Note that upgrading PDC (firmware) may render PCI unusable.  PDC won't
let you boot (or get to PDC prompt) the box if dino is rev 3.0 or lower
*and* a PCI card (except HP graphics) is installed. It'll halt and print
something about PCI and "contact local HP support".

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: "Jim Buttafuoco" <jim@buttafuoco.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 710 and miscellaneous questions ...
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Xref: news.gmane.org gmane.linux.ports.parisc:10937

Jeremy,

The 710 doesn't seem to work just yet.  A number of people are working
on getting both the network and scsi drivers to work.  I am also waiting
for support (I have 2 710's).

Jim

> I see "[t]his mailing list exists to serve the developers." Where is
> the appropriate forum to discuss basic usage?
> 
> I have an HP 700 Series Apollo Model 710. As far as I can tell it has
no
> usable operating system (no HPUX). I can turn it on and connect to a
> series of (CMOS?/BIOS?) prompts and menus via a serial cable. It does
not
> have a CD drive. I do not have HPUX to do any cross-compiles. (I have
> installed a variety of flavours of BSD and Linux hundreds of times,
but
> always on i386 architectures.)
> 
> I want to use Linux (or BSD) on it. The PA-RISC webpages have links
for
> documentation, but none appear to explain a basic install. Where is
the
> documentation for installing Linux on a hard drive?
> 
> The software page (http://www.parisc-linux.org/software/) says
"nfsroot"
> is the easiest way; but the instructions say "you have to build on
> HP/UX."
> 
> Is there simply a filesystem image (with kernel and userspace) that I
can
> dd to a harddrive that I can then use to boot my HP 710)? If so, where
is
> it? (And where is this documented?)
> 
> Also, I see an ISO image at
> ftp://puffin.external.hp.com/pub/parisc/cd-images/; is there any
> (easy) way to convert this ISO image to an image that I can dd on to
my
> hardrive (to use to boot)?
> 
> Thanks,
> 
>    Jeremy C. Reed
>    http://bsd.reedmedia.net/
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 
> 






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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: [parisc-linux] A new release of file system working for many boxes!
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Hi PA/Linux guys,

	We have just released a root file system with the latest development. It should
answer to many of your requests. But, nothing is perfect. So, the feedback is
always the first thing we pay attention to!

	A add-on is available now for everyone. It is a small script for Intel box! You
give it all the parameters like the device which will become your PA/Linux HDD
and the most accurate kernel you make and an archive of file system. And ten
minutes after, your HDD is bootable! You just have to plug in your HP box and it
starts Linux UP! This have been tested upon 715, 712 and A500 like for the fs. 

So, good luck! Thomas
ESIEE Team
http://www.esiee.fr/puffin




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From: Xavier Debacker <xavier.debacker@esiee.net>
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Subject: [parisc-linux] iso 0.6 - request for LAST feedfack
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Hi PA/Linux users!

We had some feedback about the CD iso 0.6 and now consider releasing a
0.6-1 iso ASAP

We are now aware of some bugs, listed in the todo-list above, but maybe
we missed some
We would also like a 'wish-list', describing what users - and coders! -
would like to see on the CD

Now even simple remark is important.

Thanks.


Here are known bugs:

A message appears on serial console isos:
INIT: Id "1" respawning too fast: disabled for 5 minutes
solution:
comment (for serial console) or uncomment (for STI console) the line:
1:2345:respawn:/sbin/getty 38400 tty1
in /etc/inittab
todo: patch sys-install and readme.install

/dev/rtc is not created on the HDD
solution:
include /dev/rtc in cdrom:/install/base.tgz

keyboard bugs on STI isos, some scancodes are unrecognised.
solution:
hey, I'm working on it ;-) a patch proposal is coming soon.

keyboard bug:
doesn't work on C110
solution:
none for now.

press ESC in vi crashes the kernel. (non-exhaustive key list)
solution:
need to be tested:
it's due to either an error in the kernel
or vi needs to be recompiled.

the -I needs to be before ${DEVICE} in the sys-install script.



WISHLIST:
an eth0/hosts/resolv.conf/hostname configuration script.


Any other idea ?



Xavier Debacker
ESIEE Team
http://www.esiee.fr/puffin










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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
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Subject: Re: [parisc-linux] iso 0.6 - request for LAST feedfack
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o Perhaps a ram filesystem where the system logs could be sent.

o I'm using minicom to get a console through the serial port. Sending a
BREAK + key does not activate the SysRq function. If it was disabled, it
should be put back in place.

Thanks.

-- 
     Rafael




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From: "Jeremy C. Reed" <reed@reedmedia.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 710 and miscellaneous questions ...
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On Thu, 26 Apr 2001, Brian Stewart wrote:

> You will find the HP710 is not going to work for you at this moment. The 710

Okay.

> passes control to it. I would recommend using mklinux for the time being,

Okay, my brother gave me a drive with an OS:

MkLinux for HP PA-RISC
Release 1.1 (Linux 2.0.32-osfmach3 on a hp_pa)

[root@lakestevens /root]# uname -a
Linux lakestevens 2.0.32-osfmach3 #45 Fri Nov 28 11:35:33 MET 1997 hp_pa unknown

> ftp://ftp.cirr.com/pub/hppa/mklinux/

Since my kernel date is Nov. 28, 1997 -- I assume this is the same as the
mklinux from this site. Anything newer?

Maybe I need to build a newer one myself?

http://www.mklinux.org/using_mklinux/index.html seems to be for mklinux on
a Macintosh platform.

http://www.mklinux.org/using_mklinux/index.html and
ftp://ftp.cirr.com/pub/hppa/mklinux/mkpa-rel.html have some notes about
"Building MkLinux".

> I hope this helps

It sure does. Thank you Brian.

(My main goal with this box is to learn how to port a BSD operating
system.)

Now to setup my thinlan so I can talk to it over the network ...

   Jeremy C. Reed
   http://www.reedmedia.net/





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Hi,

I rescued the company's HP9000 D from the trash list
but the file system is corrupt. I believe I  can run
parisc linux, is there a boot/install image available
on either cd or 4mm dds ?

thanks

Dean

____________________________________________________________
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From - Thu Nov 08 21:17:28 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] strace -f caused kernel fault
Date: Sat, 28 Apr 2001 02:04:05 +0100
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just trying to track down a problem with libc, I did:

$ strace -f 2>strace.out make check
make -r PARALLELMFLAGS="" CVSOPTS="" -C ../libc objdir=`pwd` check

and then on console, i got:

Dumping Stack from 0000000035efc000 to 0000000035efcbc0:                        

[stack dump snipped]

Kernel Fault: Code=26 regs=0000000035efc880 (Addr=0000000000000008)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001100000000000001110
r0-3     0000000000000000 000000001035a9a0 0000000010105290 0000000035efc780
r4-7     0000000000000000 0000000035efc000 0000000000000000 0000000000021fc0
r8-11    000000001034f9a0 000000000002a340 0000000000000001 0000000000000000
r12-15   0000000000000100 000000000002e608 00000000000227c0 000000000000005c
r16-19   0000000035efc3a0 0000000000000000 0000000000000000 0000000025870068
r20-23   0000000001fca9e6 0000000000000000 00000000103df4b8 0000000028d78800
r24-27   0000000035efc068 0000000000008800 0000000000000000 000000001034f9a0
r28-31   00000000103501a0 0000000035efc770 0000000035efcbc0 000000001030c880
sr0-3    0000000000095a00 0000000000095a80 0000000000000000 0000000000095b00
sr4-7    0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010128714 0000000010128718
 IIR: 0eb312d0    ISR: 0000000000000000  IOR: 0000000000000008
ORIG_R28: 0000000010155a60

0000000010128714 is right in the middle of schedule(), according to System.map.

-- 
Revolutions do not require corporate support.




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From: "Brian S. Julin" <bri@mojo.calyx.net>
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Subject: [parisc-linux] advice? (kernel thread vs other mechs for HIL)
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So I have to make a decision as to the MLC (core HIL) driver --
it seems kernel threads are being highly spoken of lately, and using
a kernel thread would make things simple as far as locking,
because if I'm right, as opposed to an assortment of tasklets
I can start a kernel thread, have it put itself to sleep waiting on a
semaphore, and then just "press the button" with the semaphore from
an IRQ handler, timer, or I/O request from a usermode HIL device driver.
Questions:

1) How cumbersome are they to the CPU -- is using a kernel thread
for this overkill (the MLC driver does rely heavily on timeouts
and has a complicated state machine, if that's enough to justify it,
but it could conceivably be done in smaller peices.)  For each
MLC controlled by the driver (I'm writing it for more than one,
just for laughs) entries into the driver could be maybe a hundred per
second.

2) As long as truly time sensitive work (of which there is little
for a real MLC because the HIL seems well designed with a FIFO that will
never overflow if you use it right, but if someone were faking an
MLC with a UART for some reason there could be some) is taken care
of by a quicky immediate task, is response time of a kernel thread
good enough for mouse/keyboard use?

I do see they are being used for some pretty heavily accessed stuff,
but I figured since there are quite a few wizard's reading mail here I'd
ask just to be sure.

--
Brian S. Julin





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From: Xavier Debacker <xavier.debacker@esiee.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Keyboard driver patch proposal
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Il s'agit d'un message multivolet au format MIME.
--------------B342E7BDACB673DADEE119F5
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi all!

The extended keys should now work properly with the correct SC_LIM
value, which was set to 59
but is in fact 0x59 ;-)

The error was due to escape (e0, e1 and others) keycodes that weren't
transmitted to the pc_keyb.c's handle_scancode function.
and escaped keys that weren't translated (explains the K_NONE errors).

So handle_at_scancode has been rewritten, the patch file is joined to
this mail.

It works fine on my B132.

I hope this is committable ;-)

Xavier Debacker
ESIEE Team
http://www.esiee.fr/puffin

--------------B342E7BDACB673DADEE119F5
Content-Type: text/plain; charset=us-ascii;
 name="patch20010428"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="patch20010428"

--- drivers/char/hp_keyb.c	Mon Mar 26 02:43:45 2001
+++ drivers/char/hp_keyb.c	Sat Apr 28 06:44:03 2001
@@ -7,8 +7,11 @@
  * 2000/10/26	Debacker Xavier (debackex@esiee.fr)
  *		Marteau Thomas (marteaut@esiee.fr)
  *		Djoudi Malek (djoudim@esiee.fr)
- * fixed some keysym defines and SC_LIM
- */
+ * fixed some keysym defines 
+ *
+ * 2001/04/28	Debacker Xavier 
+ * scancode translation rewritten (handle_at_scancode).
+ */  
 
 #include <linux/config.h>
 #include <linux/sched.h>
@@ -179,7 +182,7 @@
 /* 60 */  K_NONE, K_HASH, K_NONE, K_NONE, K_NONE, K_NONE, K_BKSP, K_NONE,
 /* 68 */  K_NONE, KP_1  , K_NONE, KP_4  , KP_7  , K_NONE, K_NONE, K_NONE,
 /* 70 */  KP_0  , KP_DOT, KP_2  , KP_5  , KP_6  , KP_8  , K_ESC , K_NUML,
-/* 78 */  K_F11 , KP_PLS, KP_3  , KP_MNS, KP_STR, KP_9  , K_SCRL, K_NONE,
+/* 78 */  K_F11 , KP_PLS, KP_3  , KP_MNS, KP_STR, KP_9  , K_SCRL, K_PRNT,
  	  K_NONE, K_NONE, K_NONE, K_F7  , K_NONE, K_NONE, K_NONE, K_NONE,
 	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
 	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
@@ -193,7 +196,9 @@
 	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
 	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
 	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
-	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE
+	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
+	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
+	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, KBD_RESEND, K_NONE
 };
 
 /* ----- the following code stolen from pc_keyb.c */
@@ -246,7 +251,7 @@
  * they needed not before. It does not matter that there are duplicates, as
  * long as no duplication occurs for any single keyboard.
  */
-#define SC_LIM 59
+#define SC_LIM 89
 
 #define FOCUS_PF1 85           /* actual code! */
 #define FOCUS_PF2 89
@@ -435,6 +440,7 @@
 	  }
  	} else
 	  *keycode = scancode;
+	
  	return 1;
 }
 
@@ -445,75 +451,70 @@
 { 
 }
 
-static inline void ps2kbd_key(unsigned int keycode, unsigned int up_flag)
-{
-	handle_scancode(keycode, !up_flag);
-}
-
-static unsigned char status;
-static unsigned char ncodes;
-static unsigned char bi;
-static unsigned char buffer[4];
-
 void handle_at_scancode(int keyval)
 {
-	int keysym;
-
-	if (keyval > 0x83) {
-		switch (keyval) {
-			case KBD_ESCAPEE0:
-				ncodes = 2;
-				bi = 0;
-				break;
-			case KBD_ESCAPEE1:
-				ncodes = 3;
-				bi = 0;
-				break;
-			case KBD_BREAK:
-				status |= CODE_BREAK;
-			default:
-				return;
-		}
-	}
-
-	if (ncodes) {
-		buffer[bi++] = keyval;
-		ncodes -= 1;
-		if (ncodes)
+	static int brk = 0;
+	static int esc0 = 0;
+	static int esc1 = 0;
+	int scancode = 0;
+	
+	switch (keyval) {
+		case KBD_BREAK :  
+			// sets the "release_key" bit
+			// when a key is released
+			// HP keyboard send f0 followed by the keycode
+			// while AT keyboard send the keycode with
+			// this bit set.
+			brk = 0x80;
 			return;
-		keysym = K_NONE;
-		switch (buffer[0] << 8 | buffer[1]) {
-		case ESCE0(0x11): keysym = K_RALT; break;
-		case ESCE0(0x14): keysym = K_RCTL; break;
-		case ESCE0(0x4a): keysym = KP_SLH; break;
-		case ESCE0(0x5a): keysym = KP_ENT; break;
-		case ESCE0(0x69): keysym = K_END;  break;
-		case ESCE0(0x6b): keysym = K_LEFT; break;
-		case ESCE0(0x6c): keysym = K_HOME; break;
-		case ESCE0(0x70): keysym = K_INS;  break;
-		case ESCE0(0x71): keysym = K_DEL;  break;
-		case ESCE0(0x72): keysym = K_DOWN; break;
-		case ESCE0(0x74): keysym = K_RGHT; break;
-		case ESCE0(0x75): keysym = K_UP;   break;
-		case ESCE0(0x7a): keysym = K_PGDN; break;
-		case ESCE0(0x7c): keysym = K_PRNT; break;
-		case ESCE0(0x7d): keysym = K_PGUP; break;
-		case ESCE1(0x14):
-			if (buffer[2] == 0x77)
-				keysym = K_BRK;
+		case KBD_ESCAPEE0 :
+			// 2chars sequence, commonly used
+			// to differenciate the two ALT keys
+			// and the two ENTER keys and so on...
+			esc0 = 2; // e0-xx are 2 chars
+			scancode = keyval;
+			break;
+		case KBD_ESCAPEE1 :  
+			// 3chars sequence, only used by the Pause key.
+			esc1 = 3; // e1-xx-xx are 3 chars
+			scancode = keyval;
+			break;
+//		case KBD_RESEND :
+//			// dunno what to do when it happens
+//			// Request For Comments
+//			printk("\n KBD_RESEND received ");
+//			return;
+		case 0x14 : 
+			//translate e1-14-77-e1-f0-14-f0-77 to 
+			// e1-1d-45-e1-9d-c5 (this is the Pause key)
+			if (esc1==2) scancode = brk | 0x1d;
+			break;
+		case 0x77 :
+			if (esc1==1) scancode = brk | 0x45;
+			break;
+		case 0x12 :
+			//an extended key is e0-12-e0-xx e0-f0-xx-e0-f0-12
+			//on HP, while it is e0-2a-e0-xx e0-(xx|80)-f0-aa
+			//on AT.
+			if (esc0==1) scancode = brk | 0x2a;
 			break;
-		case ESCE0(0x12):		/* ignore escaped shift key */
-			status = 0;
-			return;
-		}
-	} else {
-		bi = 0;
-		keysym = keycode_translate[keyval];
 	}
+	
 
-	if (keysym != K_NONE)
-		ps2kbd_key(keysym, status & CODE_BREAK);
-	else
-		printk("%s: K_NONE for %d\n", __FUNCTION__, keyval);
-	status = 0;
+	// translates HP scancodes to AT scancodes
+	if (!scancode) scancode = brk | keycode_translate[keyval];
+
+
+	if (!scancode) printk("\nunexpected key code %02x ",keyval);
+
+	//now behave like an AT keyboard
+	handle_scancode(scancode,!(scancode&0x80));
+
+	if (esc0) esc0--;
+	if (esc1) esc1--;
+//	printk("0x%02x ",scancode);
+//	if (!esc0 && !esc1 && brk) printk("\n");
+
+	// release key bit must be unset for the next key.
+	brk=0;
 }

--------------B342E7BDACB673DADEE119F5--





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From: Andreas Thienemann <andreas@thienemann.net>
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Subject: Re: [parisc-linux] HP9000 D boot
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Hi Dean,

On Sat, 28 Apr 2001, [iso-8859-1] Dean o wrote:

> I rescued the company's HP9000 D from the trash list
> but the file system is corrupt. I believe I  can run
> parisc linux,
Correct. At least it does run (more or less) on my box.

> is there a boot/install image available on either cd or 4mm dds ?
There are iso images available from www.esiee.fr/puffin or you can use NFS
tarballs anr boot the machine via network. These are avalable at the
parisc ftp-site.

 andreas





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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] gdb segfault
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compiled gdb myself out of current cvs tree.

(gdb) break gen_steps
Breakpoint 2 at 0x11744: file gconv_db.c, line 210.
(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) n
Program not restarted.
Segmentation fault


do_page_fault() pid=4246 command='gdb' type=15 address=0x000000a8               
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00000000000001000000001100001111                                           
r0-3     0000000000000000 00000000001d23f8 00000000400e4a0f 0000000000000000    
r4-7     00000000401d761c 00000000401d761c 00000000001d2d8e 0000000000000002    
r8-11    00000000001d339e 0000000000093210 0000000000099e50 000000000008a7b0    
r12-15   0000000000000000 0000000000000000 00000000000a87f0 0000000000000000    
r16-19   0000000000000000 0000000000038f00 0000000000000004 00000000401d761c    
r20-23   ffffffffbfe28a03 00000000400e49e8 0000000000072254 00000000401d2a18    
r24-27   0000000000000003 00000000401d761c 0000000000000000 00000000001cbbf8    
r28-31   0000000000000000 00000000002ecbb0 000000007ff005c0 000000000008e00f    
sr0-3    000000000000b780 000000000000b780 0000000000000000 0000000000300e00    
sr4-7    0000000000300e00 0000000000300e00 0000000000300e00 0000000000300e00    
                                                                                
IASQ: 0000000000300e00 0000000000300e00 IAOQ: 00000000400e4a0f 00000000400e4a13 
 IIR: 48740150    ISR: 0000000000300e00  IOR: 00000000000000a8                  
ORIG_R28: 0000000000000000                                                      


-- 
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From - Thu Nov 08 21:17:28 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] pt-initfini.c
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glibc 2.2.3 requires a pt-initfini.c which is arch-specific (for hppa at
any rate).  dhd & amodra did initfini.c for hppa, and neither of them
seem to be around right now.  The IA64 pt-initfini.c differs from the
IA64 initfini.c by only a few lines.  So _for the moment_ in my local
copy, i've simply copied the initfini.c from the ordinary sysdeps as
pt-initfini.  Any volunteers to fix this mess properly?

-- 
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] glibc 2.2.3 status
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Let's see...

 * If you edit sunrpc/Makefile to specify -Y /usr/bin to rpcgen (to fix our
   broken compiler).
 * And cp sysdeps/hppa/initfini.c \
	linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c

then glibc will build.

It will not pass `make check' though.  This seems to be crashing in the
dynamic loader when testing the iconvdata directory.  I've been trying
to debug this today, but haven't got very far.

gdb reports:

Program received signal SIGSEGV, Segmentation fault.
0x41013b94 in _dl_symbol_address (map=0x4014b000, ref=0x0)
    at ../sysdeps/hppa/dl-symaddr.c:26
26        Elf32_Addr value = (map ? map->l_addr : 0) + ref->st_value;
(gdb) bt
#0  0x41013b94 in _dl_symbol_address (map=0x4014b000, ref=0x0)
    at ../sysdeps/hppa/dl-symaddr.c:26
#1  0x40113ed4 in ?? ()

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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Keyboard driver patch proposal
Date: Sun, 29 Apr 2001 00:24:49 -0600
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To: Xavier Debacker <xavier.debacker@esiee.net>
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             <3AEA4E6E.A990140B@esiee.net> 
Xref: news.gmane.org gmane.linux.ports.parisc:10950

Xavier,
It seems Helge Deller has reviewed and committed most of the ESIEE team
work in the past. Any word on if Helge will be able to review/commit
this patch?

Xavier Debacker wrote:
> +	switch (keyval) {
> +		case KBD_BREAK :  
> +			// sets the "release_key" bit
> +			// when a key is released
> +			// HP keyboard send f0 followed by the keycode
> +			// while AT keyboard send the keycode with
> +			// this bit set.
> +			brk = 0x80;
>  			return;

BTW, I'm told the '//' comment style is not ok;  "/* ... */" is expected.
It's not mentioned in Documentation/CodingStyle so I can't explain it.

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Xavier Debacker <xavier.debacker@esiee.net>
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Subject: Re: [parisc-linux] Keyboard driver patch proposal
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Il s'agit d'un message multivolet au format MIME.
--------------6831E9B357B22AD2F35EE512
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Grant Grundler a =E9crit :

> Xavier,
> It seems Helge Deller has reviewed and committed most of the ESIEE team=

> work in the past. Any word on if Helge will be able to review/commit
> this patch?

I haven't read from Helge for a long time.  He seems quite busy.

> BTW, I'm told the '//' comment style is not ok;  "/* ... */" is expecte=
d.
> It's not mentioned in Documentation/CodingStyle so I can't explain it.

this is corrected in the patch joined here.

>
>
> thanks,
> grant
>
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253




--------------6831E9B357B22AD2F35EE512
Content-Type: text/plain; charset=us-ascii;
 name="patch20010428"
Content-Transfer-Encoding: 7bit
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 filename="patch20010428"

--- hp_keyb.c	Mon Mar 26 02:43:45 2001
+++ hp_keyb.c	Sun Apr 29 23:20:17 2001
@@ -7,8 +7,11 @@
  * 2000/10/26	Debacker Xavier (debackex@esiee.fr)
  *		Marteau Thomas (marteaut@esiee.fr)
  *		Djoudi Malek (djoudim@esiee.fr)
- * fixed some keysym defines and SC_LIM
- */
+ * fixed some keysym defines 
+ *
+ * 2001/04/28	Debacker Xavier 
+ * scancode translation rewritten (handle_at_scancode).
+ */  
 
 #include <linux/config.h>
 #include <linux/sched.h>
@@ -179,7 +182,7 @@
 /* 60 */  K_NONE, K_HASH, K_NONE, K_NONE, K_NONE, K_NONE, K_BKSP, K_NONE,
 /* 68 */  K_NONE, KP_1  , K_NONE, KP_4  , KP_7  , K_NONE, K_NONE, K_NONE,
 /* 70 */  KP_0  , KP_DOT, KP_2  , KP_5  , KP_6  , KP_8  , K_ESC , K_NUML,
-/* 78 */  K_F11 , KP_PLS, KP_3  , KP_MNS, KP_STR, KP_9  , K_SCRL, K_NONE,
+/* 78 */  K_F11 , KP_PLS, KP_3  , KP_MNS, KP_STR, KP_9  , K_SCRL, K_PRNT,
  	  K_NONE, K_NONE, K_NONE, K_F7  , K_NONE, K_NONE, K_NONE, K_NONE,
 	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
 	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
@@ -193,7 +196,9 @@
 	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
 	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
 	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
-	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE
+	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
+	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
+	  K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, KBD_RESEND, K_NONE
 };
 
 /* ----- the following code stolen from pc_keyb.c */
@@ -246,7 +251,7 @@
  * they needed not before. It does not matter that there are duplicates, as
  * long as no duplication occurs for any single keyboard.
  */
-#define SC_LIM 59
+#define SC_LIM 89
 
 #define FOCUS_PF1 85           /* actual code! */
 #define FOCUS_PF2 89
@@ -435,6 +440,7 @@
 	  }
  	} else
 	  *keycode = scancode;
+	
  	return 1;
 }
 
@@ -445,75 +451,75 @@
 { 
 }
 
-static inline void ps2kbd_key(unsigned int keycode, unsigned int up_flag)
-{
-	handle_scancode(keycode, !up_flag);
-}
-
-static unsigned char status;
-static unsigned char ncodes;
-static unsigned char bi;
-static unsigned char buffer[4];
-
 void handle_at_scancode(int keyval)
 {
-	int keysym;
-
-	if (keyval > 0x83) {
-		switch (keyval) {
-			case KBD_ESCAPEE0:
-				ncodes = 2;
-				bi = 0;
-				break;
-			case KBD_ESCAPEE1:
-				ncodes = 3;
-				bi = 0;
-				break;
-			case KBD_BREAK:
-				status |= CODE_BREAK;
-			default:
-				return;
-		}
-	}
-
-	if (ncodes) {
-		buffer[bi++] = keyval;
-		ncodes -= 1;
-		if (ncodes)
+	static int brk = 0;
+	static int esc0 = 0;
+	static int esc1 = 0;
+	int scancode = 0;
+	
+	switch (keyval) {
+		case KBD_BREAK :  
+			/* sets the "release_key" bit
+			 * when a key is released
+			 * HP keyboard send f0 followed by the keycode
+			 * while AT keyboard send the keycode with
+			 * this bit set. 
+			 */
+			brk = 0x80;
 			return;
-		keysym = K_NONE;
-		switch (buffer[0] << 8 | buffer[1]) {
-		case ESCE0(0x11): keysym = K_RALT; break;
-		case ESCE0(0x14): keysym = K_RCTL; break;
-		case ESCE0(0x4a): keysym = KP_SLH; break;
-		case ESCE0(0x5a): keysym = KP_ENT; break;
-		case ESCE0(0x69): keysym = K_END;  break;
-		case ESCE0(0x6b): keysym = K_LEFT; break;
-		case ESCE0(0x6c): keysym = K_HOME; break;
-		case ESCE0(0x70): keysym = K_INS;  break;
-		case ESCE0(0x71): keysym = K_DEL;  break;
-		case ESCE0(0x72): keysym = K_DOWN; break;
-		case ESCE0(0x74): keysym = K_RGHT; break;
-		case ESCE0(0x75): keysym = K_UP;   break;
-		case ESCE0(0x7a): keysym = K_PGDN; break;
-		case ESCE0(0x7c): keysym = K_PRNT; break;
-		case ESCE0(0x7d): keysym = K_PGUP; break;
-		case ESCE1(0x14):
-			if (buffer[2] == 0x77)
-				keysym = K_BRK;
+		case KBD_ESCAPEE0 :
+			/* 2chars sequence, commonly used
+			 * to differenciate the two ALT keys
+			 * and the two ENTER keys and so on...
+			 */
+			esc0 = 2; /* e0-xx are 2 chars */
+			scancode = keyval;
+			break;
+		case KBD_ESCAPEE1 :  
+			/* 3chars sequence, only used by the Pause key. */
+			esc1 = 3; /* e1-xx-xx are 3 chars */
+			scancode = keyval;
+			break;
+/*		case KBD_RESEND :
+ *			dunno what to do when it happens
+ *			Request For Comments
+ *			printk("\n KBD_RESEND received ");
+ *			return;
+ */
+		case 0x14 : 
+			/* translates e1-14-77-e1-f0-14-f0-77 to 
+			 * e1-1d-45-e1-9d-c5 (this is the Pause key)
+			 */
+			if (esc1==2) scancode = brk | 0x1d;
+			break;
+		case 0x77 :
+			if (esc1==1) scancode = brk | 0x45;
+			break;
+		case 0x12 :
+			/* an extended key is e0-12-e0-xx e0-f0-xx-e0-f0-12
+			 * on HP, while it is e0-2a-e0-xx e0-(xx|80)-f0-aa
+			 * on AT.
+			 */
+			if (esc0==1) scancode = brk | 0x2a;
 			break;
-		case ESCE0(0x12):		/* ignore escaped shift key */
-			status = 0;
-			return;
-		}
-	} else {
-		bi = 0;
-		keysym = keycode_translate[keyval];
 	}
+	
 
-	if (keysym != K_NONE)
-		ps2kbd_key(keysym, status & CODE_BREAK);
-	else
-		printk("%s: K_NONE for %d\n", __FUNCTION__, keyval);
-	status = 0;
+	/* translates HP scancodes to AT scancodes */
+	if (!scancode) scancode = brk | keycode_translate[keyval];
+
+
+	if (!scancode) printk("\nunexpected key code %02x ",keyval);
+
+	/* now behaves like an AT keyboard */
+	handle_scancode(scancode,!(scancode&0x80));
+
+	if (esc0) esc0--;
+	if (esc1) esc1--;
+/*	printk("0x%02x ",scancode);
+ *	if (!esc0 && !esc1 && brk) printk("\n");
+ */
+	/* release key bit must be unset for the next key. */
+	brk=0;
 }

--------------6831E9B357B22AD2F35EE512--





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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Keyboard driver patch proposal
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On Monday 30 April 2001 00:14, Xavier Debacker wrote:
> Grant Grundler a crit :
> > Xavier,
> > It seems Helge Deller has reviewed and committed most of the ESIEE team
> > work in the past. Any word on if Helge will be able to review/commit
> > this patch?
>
> I haven't read from Helge for a long time.  He seems quite busy.

Hi Xavier, Grant and list,

Yes, it's sadly true that I'm very busy atm :-(
But regarding the patch: I will take a deeper look at it in the next few days 
and commit it.

Greetings,
Helge




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Grant Grundler said:
> BTW, I'm told the '//' comment style is not ok;  "/* ... */" is expected.
> It's not mentioned in Documentation/CodingStyle so I can't explain it.

Not all C compilers like C++ comments.  =(  It should be in the
CodingStyle document.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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On Mon, Apr 30, 2001 at 10:25:27AM +0800, Andrew Shugg wrote:
> Not all C compilers like C++ comments.  =(  It should be in the
> CodingStyle document.

gcc is the only compiler which can compile the linux kernel anyway ;-)

seriously, i think they're disapproved of because they're ugly &
unnecessary.

-- 
Revolutions do not require corporate support.




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From: "van de Werken, Matthew (DEM, PH)" <M.Vandewerken@cat.csiro.au>
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Subject: [parisc-linux] Terminology
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Hi folks:

I'm hoping someone can clear this up for me - it's not documented clearly
anywhere that I can find.

What's a Zalon? Is it an interface chip between the FW SCSI on some 700
series machines, or is it something else?

What's an Outfield? I know this is on a 735, but some places I've seen say
the 735 is a "hardball", while others list it as an "outfield". My
understanding was that Outfield is equivalent to Zalon, only different. 

What's a LASI? and how does it relate to the above? (Actually, this one is
answered very nicely on the glossary page, but if someone can compare and
contrast to the above I'd be grateful.

Does anyone have any documentation that describes what these things are, and
more importantly how to talk to them? Particularly the "Outfield", since I'd
*really* like to use the FW SCSI on my 735, and it seems this is where I'm
falling over.

Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - 4069
ph:  (07) 3327 4685     fax:  (07) 3327 4455
email:  m.vandewerken@cat.csiro.au




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Xref: news.gmane.org gmane.linux.ports.parisc:10956

On Mon, Apr 30, 2001 at 04:13:56PM +1000, van de Werken, Matthew (DEM, PH) wrote:
> Hi folks:
> 
> I'm hoping someone can clear this up for me - it's not documented clearly
> anywhere that I can find.
> 
> What's a Zalon? Is it an interface chip between the FW SCSI on some 700
> series machines, or is it something else?

An interface chip between 53c720 and HPs internal GSC bus.  In my case
the Zalon chip is on a GSC card called Bluefish.

> What's an Outfield? I know this is on a 735, but some places I've seen say
> the 735 is a "hardball", while others list it as an "outfield". My
> understanding was that Outfield is equivalent to Zalon, only different. 

http://puffin.external.hp.com/parisc/hp9000_models.html shows hardball
as the project name for 735 machines.

http://216.208.98.4/view.php3?type=machine&name=735%2F99 shows outfield as the
main i/o control for the machine.

> What's a LASI? and how does it relate to the above? (Actually, this one is
> answered very nicely on the glossary page, but if someone can compare and
> contrast to the above I'd be grateful.

I'd say LASI was a newer Outfield.  LASI gives you 53c710 scsi rather
than 53700.  Outfield gives you 82596 LAN, whereas my B180 with LASI has
a Dino (GSCtoPCI bridge) and provides Tulip LAN that way.

Of course, I'm not that well up on HP internals, so hopefully an HP
person will correct anything I got wrong.

Richard





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Xref: news.gmane.org gmane.linux.ports.parisc:10957

On Sat, Apr 28, 2001 at 11:40:19PM +0100, Matthew Wilcox wrote:
> 
> glibc 2.2.3 requires a pt-initfini.c which is arch-specific (for hppa at
> any rate).  dhd & amodra did initfini.c for hppa, and neither of them
> seem to be around right now.  The IA64 pt-initfini.c differs from the
> IA64 initfini.c by only a few lines.  So _for the moment_ in my local
> copy, i've simply copied the initfini.c from the ordinary sysdeps as
> pt-initfini.  Any volunteers to fix this mess properly?

I've checked in a new file to pehc glibc CVS, merge_GLIBC_CVS_20010424
branch.  If anyone wants to try it,

 ** YOU'LL NEED NEW BINUTILS **

from any of the usual CVS repositories, because I got rid of a wart
in initfini.c as well.  Don't say you haven't been warned.

Alan





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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Keyboard driver patch proposal
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> Grant Grundler said:
> > BTW, I'm told the '//' comment style is not ok;  "/* ... */" is expected.
> > It's not mentioned in Documentation/CodingStyle so I can't explain it.
> 
> Not all C compilers like C++ comments.  =(  It should be in the
> CodingStyle document.

All compilers suitable for 2.4 building support //. It not the preferred kernel
style but now days its accepted. Its also valid ISO C now (which has a nasty
side effect as it can change the result of a program 8))

	x = 2//**/
		-4;


Alan






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Subject: [parisc-linux] Getting documentation for Outfield
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Hi folks:

I've now been struggling with getting my HP735/99 going for a little while,
and the main hurdle I still have to overcome is getting the FW SCSI going.
The narrow SCSI works fine, but the FW SCSI has to go through the Outfield
interface chip. Is there any documentation kicking around for this chip,
particularly how to talk to it, that is available for public consumption. 

I believe Richard Hirst is probably the guy to write the driver, but he
doesn't actually have hardware, and I think it's a little unfair of me to
ask him to do it if it doesn't fit with his agenda. I'm happy for him to do
it if he wants to, but if he doesn't then I'd like to get some doco's to
give it a go myself. I'm not a guru by any means, but I can look at other
code (especially the Zalon driver) and learn; I know C and my background is
hardware so it should be possible (steep, maybe, but possible) if I have the
docs.

Cheers,
Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - AUSTRALIA - 4069
ph:  +61-7-3327-4685     fax:  +61-7-3327-4455
email:  m.vandewerken@cat.csiro.au (w), mvdw73@one.net.au (h)




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Xref: news.gmane.org gmane.linux.ports.parisc:10960

On Mon, Apr 30, 2001 at 11:57:55PM +0930, amodra@one.net.au wrote:
> I've checked in a new file to pehc glibc CVS, merge_GLIBC_CVS_20010424
> branch.  If anyone wants to try it,
> 
>  ** YOU'LL NEED NEW BINUTILS **
> 
> from any of the usual CVS repositories, because I got rid of a wart
> in initfini.c as well.  Don't say you haven't been warned.

I built new binutils, but this new initfini seems to make ld.so crash
earlier, and it takes gdb with it.  Reverting to the older initfini
makes ld.so get as far as it did before, and it doesn't take gdb with it.

-- 
Revolutions do not require corporate support.




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From: willy@ldl.fc.hp.com (Matthew Wilcox)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ELFOSABI_LINUX
Date: Tue, 1 May 2001 21:34:58 -0600
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Here's the current situation as I understand it.

 * Binutils, when configured for an hppa-linux target, outputs binaries
   with the EI_OSABI field set to ELFOSABI_LINUX instead of ELFOSABI_SYSV.

 * The dynamic linker will refuse to link binaries for which the EI_OSABI
   field doesn't match the expected values -- the patch Jes wrote last
   december checks this field is set to either SYSV or LINUX, whereas
   the standard check is just for SYSV.  (note this is hppa-linux only
   and affects no other architecture).

 * The kernel does not currently check the EI_OSABI field.

The original discussion last November seemed to reach a resolution that
using this field to mark which ABI the OS implements was not the right
thing; instead this field marks ELF extensions that the ELF tools must
be aware of before manipulating this file.

Now, I'm not interested in digging up who did what when and why in order to
get us into this state.  But we do have a problem here.  Either we need to:

 * Stay in violation of the interpretation of the spec proposed last
   November.  This implies adding the HPPA patch to glibc so ld.so will
   recognise ELFOSABI_LINUX binaries.

 * Change binutils to produce binaries without ELFOSABI_LINUX set.  This
   implies rebuilding every debian package we've built so far -- over
   1100 source packages.  This means we'd miss our deadline of shipping
   at the end of May.

One subversive developer suggested a third alternative -- that we think up
& implement an extension to the ABI so we have to use ELFOSABI_LINUX :-)

Thoughts?





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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] Bizarre linking problems with glibc
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If I add this patch to glibc:

diff -u -p -r1.6.2.1 dl-error.c
--- elf/dl-error.c      2001/04/25 18:39:32     1.6.2.1
+++ elf/dl-error.c      2001/05/01 23:10:34
@@ -154,6 +154,8 @@ _dl_catch_error (const char **objname, c
       return 0;
     }
 
+printf("_dl_catcherror: we longjmped\n");
+
   /* We get here only if we longjmp'd out of OPERATE.  */
   tsd_setspecific (old);
   *objname = c.objname;

then i get these errors when building it:

gcc   -nostdlib -nostartfiles -r -o /home/willy/cvs/glibc-build/elf/librtld.os '-Wl,-(' /home/willy/cvs/glibc-build/elf/dl-allobjs.os /home/willy/cvs/glibc-build/libc_pic.a -lgcc '-Wl,-)'
/home/willy/cvs/glibc-build/libc_pic.a(init-first.os): In function `init':
/home/willy/cvs/glibc-merge/csu/../sysdeps/unix/sysv/linux/init-first.c:59: multiple definition of `__libc_multiple_libcs'
/home/willy/cvs/glibc-build/elf/dl-allobjs.os:/home/willy/cvs/glibc-merge/elf/../sysdeps/generic/dl-cache.c:149: first defined here
collect2: ld returned 1 exit status

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] Bizarre linking problems with glibc
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On Wed, May 02, 2001 at 08:55:17AM +0100, Matthew Wilcox wrote:
> --- elf/dl-error.c      2001/04/25 18:39:32     1.6.2.1
> +++ elf/dl-error.c      2001/05/01 23:10:34
> @@ -154,6 +154,8 @@ _dl_catch_error (const char **objname, c
>        return 0;
>      }
>  
> +printf("_dl_catcherror: we longjmped\n");
> +
> 
Use _dl_sysdep_output (int fd, const char *msg, ...).





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From: "MEYER,ALAN C. (HP-FtCollins,ex1)" <alan_meyer@hp.com>
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Subject: [parisc-linux] May release
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FYI, the HP folks on this port are working towards an end-May release.  This
might explain some of the risk-averse behavior you see from us over the
coming weeks.

You can look at the following to see more detail on the goals & contents for
this release:

http://puffin.external.hp.com/~acmeyer/ProjectPlan.html

Thanks for any help,
Alan
 




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From: Michael Shalayeff <mickey@mail.lucifier.net>
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Subject: [parisc-linux] Re: Diag insn
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 at "Apr 2, 2001 08:40:24 pm"
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Making, drinking tea and reading an opus magnum from Grant Grundler:
> 
> [ mickey - I cc'd the list so the right people can correct
>   my ignorane below ]
> 
> mickey wrote:
> > did not find it in the maillists or the doc.
> > although you say you are not much of a cpu guy, maybe you
> > can bounce it to smb who is?
> > the question is, how to definately distinguish pa7300lc
> > from let's say 7100lc (which is similar to it), besides
> > cache size, if possible.
> 
> I can take a whack at this: PDC MODEL and PDC CPU calls.
> The PDC for the various boxes will know exactly which type of CPU
> (down to chip rev level) and this info is availble throught PDC
> calls. parisc-linux dumps this info at boot time.
> E.g. linux/arch/parisc/kernel/setup.c:collect_boot_cpu_data()

uhm. cpuid does not exist on pa1 machines.
pdc_model_cpuid returns the machine id which rather
corresponds to an 'A180' kind of identification.
then, according to this, the only way to identify
7300lc is to match on machine=743, machine=<smth>, etc.
which is rather bulky.

> My offhand knowledge ends on where exactly to find the data for
> each CPU type. I think the PARISC 2.0 Arch has a table in an appendix
> which describes the various models and which value they will have.
> You can also browse the HW data base and extract the same info.
> (See http://216.208.98.4/view.php3?type=machine&name=A180C)
> 
> Oh - and parisc-linux determines the type based on a table.
> See arch/parisc/kernel/hardware.c:parisc_get_cpu_type()

yes, i was think more along the lines of gathering features for cpu
and then make an educated guess on cpu type.
it seems 7300lc does not have particular and distinct one feature
to differentiate it from 7100lc, besides cache size, which is,
of coure, a way to identify it, but a weak on i'd say.

> > the reason is that 7300lc uses a different diag-sequences
> > to operate block tlb and such.
> 
> AFAIK, those things are not portable across parisc implementations.

i'm aware of that (:

> But if you want to play with such code, finding the CPU type is trivial
> in comparison.
> 
> BTW, PDC calls are provided to manage the block tlb (call will fail if
> the CPU doesn't have block TLB). Some "Hversion specific" PDC calls
> are provided to perform diag insns (eg set default wide mode on PA2.0 CPUs).
> Don't how many PDC calls use diag insn or which of those calls are
> published (documentation).
> 
> If you could be more specific about what you want to do, I'm sure folks
> on this list would advise/help determine the "best" way to do it.
> grant

well, yes, the main goal is to have a difference on 7100lc vs 7300lc to
use proper diag insn sequences to init tlb and other stuff,
w/o bothering w/ pdc calls, which are sometimes not very reliable.

cu

-- 
    paranoic mickey       (my employers have changed but, the name has remained)




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>One subversive developer suggested a third alternative -- that we think up
>& implement an extension to the ABI so we have to use ELFOSABI_LINUX :-)

There's no harm in claiming to use extensions that you really don't use 
-- even if there aren't any such extensions to use. We recommend, but do 
not require, that you set the OSABI field to zero if there are no 
extensions in use.

The only downside here is that some non-Linux ELF consumer might decide 
up front that it can't read the file because it doesn't understand the 
extensions. A well-written consumer, however, will wait until it actually 
sees an extension before deciding whether or not it understands it.

-cary




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Subject: [parisc-linux] Re: Diag insn
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Michael Shalayeff wrote:
...
> well, yes, the main goal is to have a difference on 7100lc vs 7300lc to
> use proper diag insn sequences to init tlb and other stuff,
> w/o bothering w/ pdc calls, which are sometimes not very reliable.

I can't agree with that.  I'm sure PDC on most platforms has some bugs.
But "required" (as defined by HPUX) PDC calls work.
Not using PDC in this case (BTLB init) seems silly to me since it
offers binary compatibility across platforms and archs.

See the parisc-linux.org FAQ on how to update PDC if you suspect someone
has buggy firmware. And reporting PDC bugs here could lead to them being
fixed (depends on severity and machine type) or "clean" workarounds.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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In-Reply-To: <200105021913.NAA12938@puffin.external.hp.com> from Grant Grundler
 at "May 2, 2001 01:13:40 pm"
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Making, drinking tea and reading an opus magnum from Grant Grundler:
> Michael Shalayeff wrote:
> ...
> > well, yes, the main goal is to have a difference on 7100lc vs 7300lc to
> > use proper diag insn sequences to init tlb and other stuff,
> > w/o bothering w/ pdc calls, which are sometimes not very reliable.
> 
> I can't agree with that.  I'm sure PDC on most platforms has some bugs.
> But "required" (as defined by HPUX) PDC calls work.
> Not using PDC in this case (BTLB init) seems silly to me since it
> offers binary compatibility across platforms and archs.

there are many ways on achieving binary compatibility,
one of which will be a pointer to function.
this does not dismiss the initial question of course,
how to detect 7100lc vs 7300lc besides cache size
and machine model number, if ther is no way to do so,
then there is no way to do so.

> See the parisc-linux.org FAQ on how to update PDC if you suspect someone
> has buggy firmware. And reporting PDC bugs here could lead to them being
> fixed (depends on severity and machine type) or "clean" workarounds.

again, between two choices of system boots and it does not boot
until pdc bugs get fixed or otherwise problems resolved it
seems the first one wins.

let's say hypothetically.

cu

-- 
    paranoic mickey       (my employers have changed but, the name has remained)




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Let's see now.

  1) We use relocations that are not mentioned in the Processor
     Specific ABI supplement, eg. R_PARISC_PCREL12F.
  2) PA-ELF32 uses relocations that the parisc psabi says are only
     used by ELF64, eg. R_PARISC_IPLT.  No big deal, except of course
     they're a different size.
  3) PA-ELF32 uses DT_INIT and DT_FINI, which the psabi specifically
     says are not used (by HPUX).  Again no big deal.
  4) HPUX sets a precedent for PARISC, and uses a non-zero OSABI value

and probably other things I haven't thought of at the moment.

Alan





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From: =?iso-8859-1?Q?Cl=E9ment?= MOYROUD <moyroudc@esiee.fr>
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Subject: [parisc-linux] Dino RS232 works on B132 !
Date: Thu, 03 May 2001 11:11:38 +0200
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Hi all !

I am currently working on the second serial port on the B132L+ we have
here at ESIEE team. A quick hack seems to be working. I need to clean my
changes. I think I'll soon release a patch.

Best regards,

    Clement.

ESIEE Team





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>  1) We use relocations that are not mentioned in the Processor
>     Specific ABI supplement, eg. R_PARISC_PCREL12F.

What is the relocation number? I'll add it. (I hope it's not 13 or 73. 
We've recently added PCREL17FI and PCREL22FI, respectively.)


>  2) PA-ELF32 uses relocations that the parisc psabi says are only
>     used by ELF64, eg. R_PARISC_IPLT.  No big deal, except of course
>     they're a different size.

Is it still 129? I'll add it.

If there are any other relocations you use that aren't in HP's ELF/PA 
document, please let me know.


>  3) PA-ELF32 uses DT_INIT and DT_FINI, which the psabi specifically
>     says are not used (by HPUX).  Again no big deal.

I agree -- no big deal. The document that says they're not used is 
specifically referring to HP-UX, and was not meant to apply to other 
operating systems.


>  4) HPUX sets a precedent for PARISC, and uses a non-zero OSABI value

Well, we *do* use vendor-specific extensions. Plenty of them, in fact.


-cary




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What RJ-45 ethernet cards are/will probably be supported for an apollo 735 
machine?

  -Chris

_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com





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Cary Coutant <cary@cup.hp.com> writes:

> There's no harm in claiming to use extensions that you really don't use 
> -- even if there aren't any such extensions to use.

There is no harm but I won't allow it. 

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------




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>> There's no harm in claiming to use extensions that you really don't use 
>> -- even if there aren't any such extensions to use.
>
>There is no harm but I won't allow it. 

My statement was in response to a concern expressed by Matthew that a 
change to binutils would require rebuilding every single package:

> * Change binutils to produce binaries without ELFOSABI_LINUX set.  This
>   implies rebuilding every debian package we've built so far -- over
>   1100 source packages.  This means we'd miss our deadline of shipping
>   at the end of May.

I was trying to make the point that he could fix the tools (as you seem 
to prefer), but that binaries that have already been built will still 
work. They can be rebuilt at leisure (or not at all).

-cary




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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i think i've traced the problem down to setjmp/longjmp not working.

here's what happens:

__libc_dlsym calls
dlerror_run(do_dlsym) calls
_dl_catch_error -> setjmp, then calls
do_dlsym which calls
_dl_lookup_symbol which fails and calls
_dl_signal_cerror which calls
_dl_signal_error which calls longjmp

At this point, we should expect to get back to where we called setjmp, however that appears to not work.  If I add:

  errcode = setjmp (c.env);
_dl_printf("after setjmp, errcode = %u\n", errcode);
  if (__builtin_expect (errcode, 0) == 0)

the output from my debug logs looks like:

__libc_dlsym gconv_end
after setjmp, errcode = 0
current_value = 0 0
in the if... *ref = 0
in the if... not checking ELFW(ST_BIND)
in _dl_signal_cerror, receiver = 0
_dl_signal_error(0, /home/willy/cvs/glibc-build/iconvdata/SJIS.so, undefined symbol: gconv_end)
_dl_signal_error: lcatch = 7ff01300
_dl_signal_error: about to longjmp to 7ff01308
dlerror_run: errstr = (null)
Segmentation fault

so it's returning to the _caller_ of _dl_catch_error instead.  Ugh.
I'll be trying to decode assembler now...

-- 
Revolutions do not require corporate support.




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> i think i've traced the problem down to setjmp/longjmp not working.

My first guess would be the pic offset table register is not being
restored in longjmps into PIC code.  This must be done either in the
receiver or just before the longjmp.  Of course, the longjmp can come
from non-PIC code.  I am just about to submit a patch to fix a similar
problem with gcc's builtin_setjmp/longjmp on the PA for the 3.0 branch.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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Subject: Re: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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On Fri, May 04, 2001 at 04:18:42PM -0400, John David Anglin wrote:
> My first guess would be the pic offset table register is not being
> restored in longjmps into PIC code.  This must be done either in the
> receiver or just before the longjmp.  Of course, the longjmp can come
> from non-PIC code.  I am just about to submit a patch to fix a similar
> problem with gcc's builtin_setjmp/longjmp on the PA for the 3.0 branch.

hmm.. longjmp() restores r3-r19, r27, r30, r2, then fr12-21.  should it
be restoring r29 too?  if so, no problem -- we don't need to save/restore
r19 anyway.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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On Fri, May 04, 2001 at 04:18:42PM -0400, John David Anglin wrote:
> > i think i've traced the problem down to setjmp/longjmp not working.
> 
> My first guess would be the pic offset table register is not being

Thinking about it some more, I don't see how this can be the case.  Here's
the assembly:

    ea18:       e8 42 11 c4     b,l 14300 <_setjmp>,rp
    ea1c:       6b dc 3c 91     stw ret0,-1b8(sr0,sp)
    ea20:       34 1a 00 02     ldi 1,r26
    ea24:       4b d3 3f 11     ldw -78(sr0,sp),r19
    ea28:       08 1c 02 43     copy ret0,r3
    ea2c:       08 03 02 58     copy r3,r24
    ea30:       2a 60 00 00     addil 0,r19,%r1
    ea34:       48 21 07 d0     ldw 3e8(sr0,r1),r1
    ea38:       e8 40 02 6c     b,l fb74 <_dl_dprintf>,rp

after calling longjmp, that _dl_dprintf doesn't get called.  I can't
explain that.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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> Thinking about it some more, I don't see how this can be the case.  Here's
> the assembly:
> 
>     ea18:       e8 42 11 c4     b,l 14300 <_setjmp>,rp
>     ea1c:       6b dc 3c 91     stw ret0,-1b8(sr0,sp)
>     ea20:       34 1a 00 02     ldi 1,r26
>     ea24:       4b d3 3f 11     ldw -78(sr0,sp),r19
>     ea28:       08 1c 02 43     copy ret0,r3
>     ea2c:       08 03 02 58     copy r3,r24
>     ea30:       2a 60 00 00     addil 0,r19,%r1
>     ea34:       48 21 07 d0     ldw 3e8(sr0,r1),r1
>     ea38:       e8 40 02 6c     b,l fb74 <_dl_dprintf>,rp
> 
> after calling longjmp, that _dl_dprintf doesn't get called.  I can't
> explain that.

Doesn't look like _setjmp comes back at all.  Put a break on ea18
and start stepping.  It might help to do a static link.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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On Fri, May 04, 2001 at 05:31:30PM -0400, John David Anglin wrote:
> Doesn't look like _setjmp comes back at all.  Put a break on ea18
> and start stepping.  It might help to do a static link.

this code is in the dynamic linker :-))

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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> On Fri, May 04, 2001 at 05:31:30PM -0400, John David Anglin wrote:
> > Doesn't look like _setjmp comes back at all.  Put a break on ea18
> > and start stepping.  It might help to do a static link.
> 
> this code is in the dynamic linker :-))

Can you set a break on main, run to main, set the break in the
dynamic linker, then continue?

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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Subject: Re: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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On Fri, May 04, 2001 at 05:51:59PM -0400, John David Anglin wrote:
> > On Fri, May 04, 2001 at 05:31:30PM -0400, John David Anglin wrote:
> > > Doesn't look like _setjmp comes back at all.  Put a break on ea18
> > > and start stepping.  It might help to do a static link.
> > 
> > this code is in the dynamic linker :-))
> 
> Can you set a break on main, run to main, set the break in the
> dynamic linker, then continue?

No, though this is probably due more to my lack of skill with gdb than
anything else.

I set a breakpoint on _dl_signal_error ok.
Then inspecting the jmpbuf indicates that it's returning to 4101434f

/proc/<pid>/maps indicates:
0000000041000000-000000004101a000 r-xp 0000000000000000 08:03 1754026    /home/willy/cvs/glibc-build/elf/ld.so

objdump --disassemble shows:

000143e0 <index>:
...
   143f4:       6b d3 3f c1     stw r19,-20(sr0,sp)

which is the middle of nowhere.  Actually, it's right _after_ __longjmp.
clearly it should be returning to 4100ea4c

Going back and setting a breakpoint on _dl_catch_error indicates that the
value being put at ((unsigned long *)c.env)[20] is 0x4101434F, so the jmpbuf
isn't being corrupted...

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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> which is the middle of nowhere.  Actually, it's right _after_ __longjmp.
> clearly it should be returning to 4100ea4c

In __longjmp.S, try changing `ldw     80(%r26), %rp' to `ldw     80(%r26), %r2'.Same in setjmp.S.  Possibly, rp is not defined.  This cause the above.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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taking a somewhat different approach:

    ea44:       e8 42 11 d4     b,l 14334 <_setjmp>,rp

00014334 <_setjmp>:
   14334:       6b c2 3f d9     stw rp,-14(sr0,sp)
   14338:       34 19 00 00     ldi 0,r25
   1433c:       37 de 00 80     ldo 40(sp),sp
   14340:       6b d3 3f c1     stw r19,-20(sr0,sp)
   14344:       e8 41 00 d8     b,l 163b8 <__sigsetjmp>,rp
   14348:       6b d3 3f 91     stw r19,-38(sr0,sp)
   1434c:       4b d3 3f 91     ldw -38(sr0,sp),r19
   14350:       4b c2 3f 59     ldw -54(sr0,sp),rp
   14354:       e8 40 c0 00     bv r0(rp)
   14358:       37 de 3f 81     ldo -40(sp),sp

000163b8 <__sigsetjmp>:
   163b8:       0f 43 12 80     stw  r3,0(sr0,r26)
   163bc:       0f 44 12 90     stw  r4,8(sr0,r26)
   163c0:       0f 45 12 98     stw  r5,c(sr0,r26)
   163c4:       6b 46 00 20     stw r6,10(sr0,r26)
   163c8:       6b 47 00 28     stw r7,14(sr0,r26)
   163cc:       6b 48 00 30     stw r8,18(sr0,r26)
   163d0:       6b 49 00 38     stw r9,1c(sr0,r26)
   163d4:       6b 4a 00 40     stw r10,20(sr0,r26)
   163d8:       6b 4b 00 48     stw r11,24(sr0,r26)
   163dc:       6b 4c 00 50     stw r12,28(sr0,r26)
   163e0:       6b 4d 00 58     stw r13,2c(sr0,r26)
   163e4:       6b 4e 00 60     stw r14,30(sr0,r26)
   163e8:       6b 4f 00 68     stw r15,34(sr0,r26)
   163ec:       6b 50 00 70     stw r16,38(sr0,r26)
   163f0:       6b 51 00 78     stw r17,3c(sr0,r26)
   163f4:       6b 52 00 80     stw r18,40(sr0,r26)
   163f8:       6b 53 00 88     stw r19,44(sr0,r26)
   163fc:       6b 5b 00 90     stw dp,48(sr0,r26)
   16400:       6b 5e 00 98     stw sp,4c(sr0,r26)
   16404:       6b 42 00 a0     stw rp,50(sr0,r26)
   16408:       37 53 00 b0     ldo 58(r26),r19
   1640c:       2e 70 12 2c     fstd,ma  fr12,8(sr0,r19)
   16410:       2e 70 12 2d     fstd,ma  fr13,8(sr0,r19)
   16414:       2e 70 12 2e     fstd,ma  fr14,8(sr0,r19)
   16418:       2e 70 12 2f     fstd,ma  fr15,8(sr0,r19)
   1641c:       2e 70 12 30     fstd,ma  fr16,8(sr0,r19)
   16420:       2e 70 12 31     fstd,ma  fr17,8(sr0,r19)
   16424:       2e 70 12 32     fstd,ma  fr18,8(sr0,r19)
   16428:       2e 70 12 33     fstd,ma  fr19,8(sr0,r19)
   1642c:       2e 70 12 34     fstd,ma  fr20,8(sr0,r19)
   16430:       2e 60 12 15     fstd  fr21,0(sr0,r19)
   16434:       e8 1e 0a d5     b,l 139a4 <__sigjmp_save>,r0
   16438:       08 00 02 40     nop

000139a4 <__sigjmp_save>:
   139a4:       6b 40 01 50     stw r0,a8(sr0,r26)
   139a8:       e8 40 c0 00     bv r0(rp)
   139ac:       34 1c 00 00     ldi 0,ret0

oh.  wait.  1434F is exactly where it should be.  *sigh*.  So why the hell
is it returning to the wrong place?

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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On Fri, May 04, 2001 at 11:57:11PM +0100, Matthew Wilcox wrote:
> 
> taking a somewhat different approach:
> 
>     ea44:       e8 42 11 d4     b,l 14334 <_setjmp>,rp
> 
> 00014334 <_setjmp>:
>    14334:       6b c2 3f d9     stw rp,-14(sr0,sp)
>    14338:       34 19 00 00     ldi 0,r25
>    1433c:       37 de 00 80     ldo 40(sp),sp
>    14340:       6b d3 3f c1     stw r19,-20(sr0,sp)
>    14344:       e8 41 00 d8     b,l 163b8 <__sigsetjmp>,rp
>    14348:       6b d3 3f 91     stw r19,-38(sr0,sp)
>    1434c:       4b d3 3f 91     ldw -38(sr0,sp),r19
>    14350:       4b c2 3f 59     ldw -54(sr0,sp),rp
>    14354:       e8 40 c0 00     bv r0(rp)
>    14358:       37 de 3f 81     ldo -40(sp),sp

> oh.  wait.  1434F is exactly where it should be.  *sigh*.  So why the hell
> is it returning to the wrong place?

OK, got it.  the first time we call _setjmp, everything is fine.
But when we return to it through longjmp, the `rp' which got stored has
changed, and now its the rp for the last function we called.  Which is
what happens using `step' through gdb (now that i have a working gdb,
thanks for the deb, matt).

Ugh.  I guess we can't use _setjmp then, at least in its current form.
Oh well, at least the problem's found.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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On Sat, 5 May 2001, Matthew Wilcox wrote:

> OK, got it.  the first time we call _setjmp, everything is fine.
> But when we return to it through longjmp, the `rp' which got stored has
> changed, and now its the rp for the last function we called.

Oh horrible.  Yes, the stack frame that sysdeps/generic/bsd-_setjmp.c is
using to load rp is no longer valid.  Oh well, the comment in
generic/bsd-_setjmp.c should have warned us, which leads to another
question.  Why was this added to gcc/config/pa/pa-linux.h?

/* Sibcalls, stubs, and elf sections don't play well.  */
#undef FUNCTION_OK_FOR_SIBCALL
#define FUNCTION_OK_FOR_SIBCALL(x) 0

Seems a bit drastic to me.  The correspnding define in pa.h should be OK
for us.

-- 
Alan Modra





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On Sat, May 05, 2001 at 10:19:05AM +0930, Alan Modra wrote:
> Oh horrible.  Yes, the stack frame that sysdeps/generic/bsd-_setjmp.c is
> using to load rp is no longer valid.  Oh well, the comment in
> generic/bsd-_setjmp.c should have warned us,

sure, if we'd ever looked in there :-)

on this subject, there've now been three things (LFS, ELF_OSABI_LINUX
and setjmp) which people have said `oh yeah, thought we might have some
problems with those, someone mentioned that' (or similar) once the problem
was found.  would anyone care to remember anything else that they thought
`might be a problem at some point'?

> which leads to another
> question.  Why was this added to gcc/config/pa/pa-linux.h?
> 
> /* Sibcalls, stubs, and elf sections don't play well.  */
> #undef FUNCTION_OK_FOR_SIBCALL
> #define FUNCTION_OK_FOR_SIBCALL(x) 0
> 
> Seems a bit drastic to me.  The correspnding define in pa.h should be OK
> for us.

I vaguely remember that.  Searching the list archive finds:
http://lists.parisc-linux.org/pipermail/parisc-linux/2000-July/009002.html

so it's dhd's fault :-)

-- 
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Subject: Re: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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On Sat, 5 May 2001, Matthew Wilcox wrote:

> was found.  would anyone care to remember anything else that they thought
> `might be a problem at some point'?

lock alignment => malloc alignment.  (Possibly already fixed with new
glibc. I haven't checked.)

[re: FUNCTION_OK_FOR_SYSCALL == 0]
> I vaguely remember that.  Searching the list archive finds:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2000-July/009002.html

That patch seems to be a merge, so we don't have the real reason for
the change.





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Subject: Re: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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On Sat, May 05, 2001 at 10:48:14AM +0930, Alan Modra wrote:
> On Sat, 5 May 2001, Matthew Wilcox wrote:
> 
> > was found.  would anyone care to remember anything else that they thought
> > `might be a problem at some point'?
> 
> lock alignment => malloc alignment.  (Possibly already fixed with new
> glibc. I haven't checked.)

Yup, that got taken care of by Ulrich.

> [re: FUNCTION_OK_FOR_SYSCALL == 0]
> > I vaguely remember that.  Searching the list archive finds:
> > http://lists.parisc-linux.org/pipermail/parisc-linux/2000-July/009002.html
> 
> That patch seems to be a merge, so we don't have the real reason for
> the change.

Sure, but I'm not sure we had it before that.  Wait!  We have cvs history!
http://puffin.external.hp.com/cvs/gcc/gcc/config/pa/pa-linux.h?r1=1.1&r2=1.2
Oh.  The comment isn't helpful.  I guess you'll have to ask dhd...
dhd@debian.org is one of his valid addresses.

-- 
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Subject: [parisc-linux] glibc 2.2.3 make check status
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I'm not sure people actually ran make check against glibc 2.2.1, so I don't
know how this compares.  Maybe 2.2.3 just has more tests than 2.2.1 did...

I'd love some help on this.  Really.  check the merge_GLIBC_CVS_20010424
branch out of CVS, configure it, make, then make check, and you'll start
hitting failures.  I've indicated the ones I've investigated.

 * all the tests in math/ fail.  pb knows what these problems are.

 * stdlib/strtold fails.  This is due to our long double being 64 bit and
   glibc thinks its 128 bit.  Bug #119

 * all the tests in dlfcn/ fail.  I haven't investigated these.

 * grp/testgrp fails.  This is a generic glibc 2.2.3 problem, the fix
   is available from upstream.

 * posix/testchmod fails.  This is due to a kernel bug in strncpy_from_user.
   Bug #118

 * posix/globtest fails.  Haven't investigated.

 * io/test-utime fails.  Looks like a stat problem.

 * misc/tst-efgcvt fails.  (Maybe another long double problem?)

 * gmon/tst-sprofil fails.  Looks like it needs to be ported to Linux/hppa.

 * linuxthreads/ and rt/ all hang.  I'll look at this.

 * elf/resolvfail and elf/constload1 fail.  Not investigated.  Probably other
   tests in elf/ also fail.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:17:32 2018
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From: Alan Modra <alan@SPRI.Levels.UniSA.Edu.Au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] pa FUNCTION_OK_FOR_SIBCALL
Date: Sat, 5 May 2001 13:54:47 +0930 (CST)
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Hi Jeff,
   Can you remember why FUNCTION_OK_FOR_SIBCALL is !TARGET_64BIT?

I'm asking because I think tail calls are always OK for pa32-linux,
because having a flat sub-space model we don't need to worry about rp',
and r19 will be preserved/loaded in the PIC case.  I'm wordering what I'm
missing though as you can argue the same for pa64.

Alan





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From: Alan Modra <alan@SPRI.Levels.UniSA.Edu.Au>
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Subject: [parisc-linux] pa __builtin_return_addr
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Hi Jeff,
  I stumbled on this one a couple of hours ago, and haven't figured out
a good fix yet.

cat >builtin_ret.c <<EOF
void *foo (void) { return __builtin_return_address (0); }
EOF
gcc -O -S -mno-space-regs builtin_ret.c

gives (trimming somewhat)
foo:
        bv %r0(%r2)
        ldw -20(%r30),%r28	# Oops, we never stored r2 at -20(%r30)

The fix I have in mind is to add some communication between
builtins.c:expand_builtin_return_addr and pa.c:hppa_expand_prologue.
eg. add a field to struct machine_function, and set it in
pa.c:return_addr_rtx to indicate that r2 must be saved.


A similar problem occurs with
cat >builtin_frame.c <<EOF
void *foo (void) { return __builtin_frame_address (1); }
EOF
gcc -O -S builtin_frame.c

foo:
        bv %r0(%r2)
        ldw 0(%r30),%r28	# Oops, we haven't saved a frame pointer.

We ought to be able to make __builtin_frame_address (n) work reliably for
n = 0 and n = 1 by something similar to the fix I'm proposing for the
return address problem.  ie. set a "frame_pointer_needed" flag in
struct machine_function.

-- 
Alan Modra






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From: Matthieu Delahaye <delahaym@esiee.fr>
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Subject: Re: [parisc-linux] glibc 2.2.3 make check status
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This is a multi-part message in MIME format.
--------------C66A00DC2A8F1DBB37F2490E
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi willy

Matthew Wilcox wrote:
> 
> I'm not sure people actually ran make check against glibc 2.2.1, so I don't
> know how this compares.  Maybe 2.2.3 just has more tests than 2.2.1 did...
> 
> I'd love some help on this.  Really.  check the merge_GLIBC_CVS_20010424
> branch out of CVS, configure it, make, then make check, and you'll start
> hitting failures.  I've indicated the ones I've investigated.

>  * posix/testchmod fails.  This is due to a kernel bug in strncpy_from_user.
>    Bug #118

The patch given above is supposed to correct this bug. It deals with the
fact that r24 counter is not "up to date" when the loop is stoped due to
a 0 byte's copy. 

I didn't find your merge_GLIBC_CVS_20010424 file. If you could point me
where
it is, I could perhaps try to help you as you request. More over, as you
might infer
I wasn't able to check the patch with the make check of the merge. The
only thing I know
is that my kernel still work with this patch , which is not a proof.

Regards,
Matthieu
-- 
Matthieu Delahaye
ESIEE Team
http://mkhppa1.esiee.fr/
--------------C66A00DC2A8F1DBB37F2490E
Content-Type: text/plain; charset=us-ascii;
 name="strncopy_from_user.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="strncopy_from_user.diff"

diff -Nru linux.old/arch/parisc/lib/lusercopy.S linux.new/arch/parisc/lib/lusercopy.S
--- linux.old/arch/parisc/lib/lusercopy.S	Sat May  5 16:43:40 2001
+++ linux.new/arch/parisc/lib/lusercopy.S	Sat May  5 16:44:00 2001
@@ -144,7 +144,7 @@
 	 *
 	 * Returns -EFAULT if exception before terminator,
 	 *         N if the entire buffer filled,
-	 *         otherwise strlen + 1 (i.e. includes zero byte)
+	 *         otherwise strlen (i.e. excludes zero byte)
 	 */
 
 	.export lstrncpy_from_user,code
@@ -153,7 +153,7 @@
 	.callinfo NO_CALLS
 	.entry
 	comib,=     0,%r24,$lsfu_done
-	copy        %r26,%r23
+	copy        %r24,%r23
 	get_sr
 1:      ldbs,ma     1(%sr1,%r25),%r1
 $lsfu_loop:
@@ -162,7 +162,7 @@
 	addib,<>,n  -1,%r24,$lsfu_loop
 2:      ldbs,ma     1(%sr1,%r25),%r1
 $lsfu_done:
-	sub         %r26,%r23,%r28
+	sub         %r23,%r24,%r28
 $lsfu_exit:
 	bv          %r0(%r2)
 	nop

--------------C66A00DC2A8F1DBB37F2490E--





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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] glibc 2.2.3 make check status
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On Sat, May 05, 2001 at 05:12:39PM +0200, Matthieu Delahaye wrote:
> The patch given above is supposed to correct this bug. It deals with the
> fact that r24 counter is not "up to date" when the loop is stoped due to
> a 0 byte's copy. 

It does indeed, I shall check this in now.  Thank you for your help!
Would you like to close this bug?

> I didn't find your merge_GLIBC_CVS_20010424 file. If you could point me
> where
> it is, I could perhaps try to help you as you request. More over, as you
> might infer
> I wasn't able to check the patch with the make check of the merge. The
> only thing I know
> is that my kernel still work with this patch , which is not a proof.

cvs co -r merge_GLIBC_CVS_20010424 glibc

gets you the glibc I'm working on.  i could provide a patch against
upstream glibc 2.2.3 if there's interest?

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] glibc 2.2.3 make check status
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On Sat, May 05, 2001 at 03:34:57AM +0100, Matthew Wilcox wrote:
>  * io/test-utime fails.  Looks like a stat problem.

That's rather interesting.  It fails for me over NFS, but not on ramfs.
I'm going to log this as a kernel bug to remind me to report it upstream
if it can be reproduced on a later kernel revision.  This is something
people could do on a non-pa machine.





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From: "Pete" <plaven@ozemail.com.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:10996

Hey everyone,

Thanks to Grants lifimage I've finally started getting somewhere.

I'm using a linux box as a NFSboot server.  The kernel is booting, 
but when it gets to the point of reading the root file system, I'm 
getting an error on the nfsservers messages saying: tftp: read: 
connection refused.

I'm very new to booting like this, and if it wasn't for the lifimage 
Grant put up for ftp I doubt I'd be this far.

I have setup nfs, I have exported the file system for the base fs 
from external etc... but this error of tftp refusing the connection I 
can't seem to find anything to say what needs to be configured, to 
get it further.

TIA,



Pete.





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Matthew Wilcox <matthew@wil.cx> writes:

> On Fri, May 04, 2001 at 05:31:30PM -0400, John David Anglin wrote:
> > Doesn't look like _setjmp comes back at all.  Put a break on ea18
> > and start stepping.  It might help to do a static link.
> 
> this code is in the dynamic linker :-))

And the problem is?  I debug ld.so as a normal program.  The necessary
patches I came up with are in the official gdb for quite some time
now.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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Ulrich Drepper wrote:
> Matthew Wilcox <matthew@wil.cx> writes:
> > On Fri, May 04, 2001 at 05:31:30PM -0400, John David Anglin wrote:
> > > ....  It might help to do a static link.
> > 
> > this code is in the dynamic linker :-))
> 
> And the problem is?  I debug ld.so as a normal program.  The necessary
> patches I came up with are in the official gdb for quite some time
> now.

Seems Matthew misunderstood the suggestion to use a static link.
I also read jda's comment to mean statically link the target obj.
It's clear now jda meant gdb.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Matthieu Delahaye <delahaym@esiee.fr>
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I Pete!
I currently try to make a lan boot, and I got the same error.
When I set NFSROOT=x.x.x.x:/path/to/nfs/root
it resolves the problem.

http://lists.parisc-linux.org/pipermail/parisc-linux/2000-November/009962.html

Regards,
Matthieu

Pete wrote:
> 
> Hey everyone,
> 
> Thanks to Grants lifimage I've finally started getting somewhere.
> 
> I'm using a linux box as a NFSboot server.  The kernel is booting,
> but when it gets to the point of reading the root file system, I'm
> getting an error on the nfsservers messages saying: tftp: read:
> connection refused.
> 
> I'm very new to booting like this, and if it wasn't for the lifimage
> Grant put up for ftp I doubt I'd be this far.
> 
> I have setup nfs, I have exported the file system for the base fs
> from external etc... but this error of tftp refusing the connection I
> can't seem to find anything to say what needs to be configured, to
> get it further.
> 
> TIA,
> 
> Pete.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
Matthieu Delahaye
ESIEE Team
http://mkhppa1.esiee.fr/




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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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> Seems Matthew misunderstood the suggestion to use a static link.
> I also read jda's comment to mean statically link the target obj.
> It's clear now jda meant gdb.

The first was my original intent.  However, I also find gdb doesn't
crash as much when it is statically linked.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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Subject: [parisc-linux] Re: pa FUNCTION_OK_FOR_SIBCALL
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  In message <Pine.LNX.4.30.0105051311480.7143-100000@mullet.itr.unisa.edu.au>y
ou write:
  > Hi Jeff,
  >    Can you remember why FUNCTION_OK_FOR_SIBCALL is !TARGET_64BIT?
  > 
  > I'm asking because I think tail calls are always OK for pa32-linux,
  > because having a flat sub-space model we don't need to worry about rp',
  > and r19 will be preserved/loaded in the PIC case.  I'm wordering what I'm
  > missing though as you can argue the same for pa64.
I just never sat down to make them work for PA64.  Given that there are no
argument relocation stubs it's likely they'll be applicable more often for
PA64 and PA32-linux than they are for hpux.


jeff





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  In message <Pine.LNX.4.30.0105052051010.7143-100000@mullet.itr.unisa.edu.au>y
ou write:
  > Hi Jeff,
  >   I stumbled on this one a couple of hours ago, and haven't figured out
  > a good fix yet.
  > 
  > cat >builtin_ret.c <<EOF
  > void *foo (void) { return __builtin_return_address (0); }
  > EOF
  > gcc -O -S -mno-space-regs builtin_ret.c
  > 
  > gives (trimming somewhat)
  > foo:
  >         bv %r0(%r2)
  >         ldw -20(%r30),%r28	# Oops, we never stored r2 at -20(%r30)
  > 
  > The fix I have in mind is to add some communication between
  > builtins.c:expand_builtin_return_addr and pa.c:hppa_expand_prologue.
  > eg. add a field to struct machine_function, and set it in
  > pa.c:return_addr_rtx to indicate that r2 must be saved.
The "right" way to handle this would be to have return_addr_rtx return
%r2 in the case where %r2 isn't ever saved into the stack.  However, I
don't know if we can reliably determine if %r2 is saved into the stack
at the point where we call return_addr_rtx.

If we can't reliably make that determination, then we can just force
%r2 to be saved into the stack if we ever call __builtin_return_address.

  > A similar problem occurs with
  > cat >builtin_frame.c <<EOF
  > void *foo (void) { return __builtin_frame_address (1); }
  > EOF
  > gcc -O -S builtin_frame.c
  > 
  > foo:
  >         bv %r0(%r2)
  >         ldw 0(%r30),%r28	# Oops, we haven't saved a frame pointer.
  > 
  > We ought to be able to make __builtin_frame_address (n) work reliably for
  > n = 0 and n = 1 by something similar to the fix I'm proposing for the
  > return address problem.  ie. set a "frame_pointer_needed" flag in
  > struct machine_function.
I disagree about the solutoin for this one.  I believe it should be 
possible to derive the frame address from the stack pointer fairly
easily since the difference between the stack and frame pointer is
a constant.

jeff






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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: [parisc-linux] Serial PDC console on 712/601
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Hello HP hackers !

I have a problem setting the PDC console path to serial.
How can be done this on the HP 712/60.
On my 9000/720 I can use the `path' command on the PDC
console (admin mode). But on the 712/60, the `path' command
only sets the boot paths (primary, secondary), but not the
console.

Is it possible to use the 712/60 with serial console only
(no display and keyboard) ?
How can I set serial console ?

With friendly regards
	Christoph Plattner



-- 
-------------------------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc 2.2.3: setjmp/longjmp
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To: Ulrich Drepper <drepper@cygnus.com>
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On Sat, May 05, 2001 at 11:14:55PM -0700, Ulrich Drepper wrote:
> Matthew Wilcox <matthew@wil.cx> writes:
> 
> > On Fri, May 04, 2001 at 05:31:30PM -0400, John David Anglin wrote:
> > > Doesn't look like _setjmp comes back at all.  Put a break on ea18
> > > and start stepping.  It might help to do a static link.
> > 
> > this code is in the dynamic linker :-))
> 
> And the problem is?  I debug ld.so as a normal program.  The necessary
> patches I came up with are in the official gdb for quite some time
> now.

ok, here's a gdb session from yesterday.  i'm trying to find out why
dlfcn/tst-dladdr is failing.

here's my .gdbinit:

set env GCONV_PATH=/home/willy/cvs/glibc-B/iconvdata
set env LC_ALL=C
file /home/willy/cvs/glibc-B/elf/ld.so.1
set args --library-path /home/willy/cvs/glibc-B:/home/willy/cvs/glibc-B/math:/home/willy/cvs/glibc-B/elf:/home/willy/cvs/glibc-B/dlfcn:/home/willy/cvs/glibc-B/nss:/home/willy/cvs/glibc-B/nis:/home/willy/cvs/glibc-B/rt:/home/willy/cvs/glibc-B/resolv:/home/willy/cvs/glibc-B/crypt:/home/willy/cvs/glibc-B/linuxthreads /home/willy/cvs/glibc-B/dlfcn/tst-dladdr --direct
break _dl_init
run
add-symbol-file /home/willy/cvs/glibc-B/dlfcn/tst-dladdr 0x010000
add-symbol-file /home/willy/cvs/glibc-B/dlfcn/libdl.so 0x40001000
add-symbol-file /home/willy/cvs/glibc-B/libc.so 0x040014000

start gdb, check the /proc/<pid>/maps file:

0000000000010000-0000000000012000 r-xp 0000000000000000 08:03 279751     /home/willy/cvs/glibc-B/dlfcn/tst-dladdr
0000000040001000-0000000040004000 r-xp 0000000000000000 08:03 279740     /home/willy/cvs/glibc-B/dlfcn/libdl.so
0000000040014000-0000000040141000 r-xp 0000000000000000 08:03 639967     /home/willy/cvs/glibc-B/libc.so
0000000041000000-000000004101a000 r-xp 0000000000000000 08:03 1327771    /home/willy/cvs/glibc-B/elf/ld.so

so all seems well.

here's the output from gdb:

This GDB was configured as "hppa2.0-unknown-linux-gnu".
Breakpoint 1 at 0xebe8: file dl-init.c, line 98.
Breakpoint 1 at 0x4100ebe8: file dl-init.c, line 98.

Breakpoint 1, _dl_init (main_map=0x84690, argc=545552, argv=0x86210, env=0x0)
    at dl-init.c:98
98        if (__builtin_expect (_dl_initfirst != NULL, 0))
add symbol table from file "/home/willy/cvs/glibc-B/dlfcn/tst-dladdr" at
        .text_addr = 0x10000
add symbol table from file "/home/willy/cvs/glibc-B/dlfcn/libdl.so" at
        .text_addr = 0x40001000
add symbol table from file "/home/willy/cvs/glibc-B/libc.so" at
        .text_addr = 0x40014000
(gdb) break main 
Breakpoint 2 at 0x10614: file ../test-skeleton.c, line 123.
(gdb) c
Continuing.

Breakpoint 1, _dl_init (main_map=0x3, argc=-2147483646, argv=0x0, 
    env=0x40157ebc) at dl-init.c:98
98        if (__builtin_expect (_dl_initfirst != NULL, 0))
(gdb) c
Continuing.
/home/willy/cvs/glibc-B/dlfcn/tst-dladdr: dladdr failed

Program exited with code 01.

so the program never stops at main().

-- 
Revolutions do not require corporate support.




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From: Matthieu Delahaye <delahaym@esiee.fr>
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Subject: Re: [parisc-linux] Serial PDC console on 712/601
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Christoph Plattner wrote:
> 
> Hello HP hackers !
> 
> I have a problem setting the PDC console path to serial.
> How can be done this on the HP 712/60.
> On my 9000/720 I can use the `path' command on the PDC
> console (admin mode). But on the 712/60, the `path' command
> only sets the boot paths (primary, secondary), but not the
> console.
> 
> Is it possible to use the 712/60 with serial console only
> (no display and keyboard) ?
> How can I set serial console ?
> 
> With friendly regards
>         Christoph Plattner
> 
> --
> -------------------------------------------------------------------------
> private:        christoph.plattner@gmx.at
> company:        christoph.plattner@alcatel.at
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux



>From Pa-RISC/Linux Boot Howto:

3.1.2.3.3. How can I change the boot console to serial on a 712?

   Unfortunately, you can't. Although 712s are configured for in-house
HP development to use serial console, this configuration
   isn't supported in the field. You have to use a graphics console for
712s.

http://www.oswg.org/oswg-nightly/oswg/en_US.ISO_8859-1/articles/
parisc-linux/parisc-linux-boot/ 

But it seems you can, after dangerous manipulations:

http://lists.parisc-linux.org/pipermail/parisc-linux/1999-December/008117.html 

regards,
Matthieu


-- 
Matthieu Delahaye
ESIEE Team
http://mkhppa1.esiee.fr/




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Subject: Re: [parisc-linux] Serial PDC console on 712/601
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Very intersting the method of using the ISL commands to switch
over. And I think I also can switch back using this method.
Is this correct ?

But what is this "dagger" card.
Where does the machine store the information ?
Flash/EEPROM/battery backuped SRAM ?
Can I do a "backup" copy (I have an universial chip programmer
at home, and other tools !) ?
Can I make such a "dagger" card (whatever it is ?

Please give me some hints, before I "risk" the change !

With friendly regards
	Christoph Plattner



------------------------------------------------------------------
private:  christoph.plattner@gmx.at
company:  christoph.plattner@alcatel.at


Matthieu Delahaye wrote:
> 
> Christoph Plattner wrote:
> >
> > Hello HP hackers !
> >
> > I have a problem setting the PDC console path to serial.
> > How can be done this on the HP 712/60.
> > On my 9000/720 I can use the `path' command on the PDC
> > console (admin mode). But on the 712/60, the `path' command
> > only sets the boot paths (primary, secondary), but not the
> > console.
> >
> > Is it possible to use the 712/60 with serial console only
> > (no display and keyboard) ?
> > How can I set serial console ?
> >
> > With friendly regards
> >         Christoph Plattner
> >
> > --
> > -------------------------------------------------------------------------
> > private:        christoph.plattner@gmx.at
> > company:        christoph.plattner@alcatel.at
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 
> >From Pa-RISC/Linux Boot Howto:
> 
> 3.1.2.3.3. How can I change the boot console to serial on a 712?
> 
>    Unfortunately, you can't. Although 712s are configured for in-house
> HP development to use serial console, this configuration
>    isn't supported in the field. You have to use a graphics console for
> 712s.
> 
> http://www.oswg.org/oswg-nightly/oswg/en_US.ISO_8859-1/articles/
> parisc-linux/parisc-linux-boot/
> 
> But it seems you can, after dangerous manipulations:
> 
> http://lists.parisc-linux.org/pipermail/parisc-linux/1999-December/008117.html
> 
> regards,
> Matthieu
> 
> --
> Matthieu Delahaye
> ESIEE Team
> http://mkhppa1.esiee.fr/
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux


------------------------------------------------------------------
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company:  christoph.plattner@alcatel.at




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Subject: [parisc-linux] boot-floppies (installer)
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Hi,
  Paul L, Paul B and I are working on the installer.  This is where
we are currently at...

I'm posting these diffs here rather than just dopping them in cvs because
I know they are not quite right, but hopefully others will pick them up
and try building.

First debootstrap, latest source is 0.1.7, and my diff is

================================== cut ===============================
diff -ur debootstrap-0.1.7.ori/functions debootstrap-0.1.7/functions
--- debootstrap-0.1.7.ori/functions	Tue May  1 01:01:07 2001
+++ debootstrap-0.1.7/functions	Fri May  4 10:13:05 2001
@@ -69,6 +69,8 @@
 
 check_md5 () {
   # args: dest md5 size
+  # always succeed, until busybox md5sum is fixed
+  return 0
   local expmd5="$2"
   local expsize="$3"
   relmd5=`md5sum < "$1"`
diff -ur debootstrap-0.1.7.ori/woody debootstrap-0.1.7/woody
--- debootstrap-0.1.7.ori/woody	Tue May  1 01:47:26 2001
+++ debootstrap-0.1.7/woody	Mon May  7 22:11:56 2001
@@ -18,6 +18,22 @@
 	"arm")
 		base="$base setserial libgpmg1"
 		;;
+	"hppa")
+		base="$(without_package "apt-utils" "$base")"
+		base="$(without_package "console-common" "$base")"
+		base="$(without_package "console-data" "$base")"
+		base="$(without_package "console-tools" "$base")"
+		base="$(without_package "console-tools-libs" "$base")"
+		base="$(without_package "fdutils" "$base")"
+		base="$(without_package "liblockfile1" "$base")"
+		base="$base palo"
+		base="$base libstdc++3.0"
+		base="$base gcc-3.0-base"
+		required="$required libterm-stool-perl"
+		required="$required libterm-slang-perl"
+		required="$required base-config"
+		required="$(without_package "libstdc++2.10-glibc2.2" "$required")"
+		;;
 	"i386")
 		required="$(without_package "libperl5.6" "$required") mbr"
 		base="$base lilo pciutils setserial syslinux"   # pcmcia-cs
================================== cut ===============================

busybox md5sum is fixed in its master cvs, but that hasn't rippled down
to us yet.  Paul L built a .deb with the fix, on pehc:~pjlahaie.  Havn't
checked to see if I can now enable the md5sum tests.

The big list of things removed from base are more because I didn't have
.debs of them than because they were not needed.  libterm* are probably
not actually needed.

Can't get this lot upstream until we figure out what the package list
should really be.



There is a file /sbin/termwrap needed in the root.bin produced from building
the boot-floppies, which doesn't appear to belong to any package.  A quick
search showed other ports had hit the same problem.  Here it is; add it to
your root.bin before trying to use it, and don't forget to chmod +x it.

================================== cut ===============================
#!/bin/sh
######################################################################
##	Ignore some signals.
######################################################################
trap fail SIGTERM SIGINT

######################################################################
##	Set some environment variables.
######################################################################
# reads /etc/environment.
test -f /etc/environment && . /etc/environment

# Set all locale related environment variables.
LC_ALL=$LANG
export LANG LC_ALL

######################################################################
##	Display usage if no argument.
######################################################################
if [ -z "$1" ]; then
	echo "usage: $0 [-nnt] <command> [...]"
	echo "-nnt: don't run another terminal"
	exit 0
fi

######################################################################
##	Recognize terminal type.
######################################################################
case `/usr/bin/tty` in
/dev/tty|/dev/console|/dev/tty[1-9]*)
	TERMINAL=console
	;;
/dev/tty[p-za-e]*)
	TERMINAL=pseudo
	if [ ! -z "$DISPLAY" ]; then
		TERMINAL=x
	else
		case $TERM in
		rxvt|xterm*|kterm)	TERMINAL=x;;
		esac
	fi
	;;
/dev/tty[A-Z]*|/dev/cu*)
	TERMINAL=serial
	;;
esac

case $TERM in
dumb)	TERMINAL=dumb
esac

export TERMINAL

# Why don't we use dpkg-architecture? 
# Because it isn't in the base archive.

case $HOSTTYPE in 
i386)	/bin/grep -q 9800 /proc/version && SUBARCH=pc9800 ;;
esac

######################################################################
##	Select suitable terminal as wrapper.
######################################################################
WRAPPER=""

case $LANG in
ja*)	
	case $TERMINAL in
	x)
		#WRAPPER="/usr/X11R6/bin/kterm -e"
		WRAPPER="/usr/X11R6/bin/krxvt -e"
		;;
	console)
		if [ "$SUBARCH" != pc9800 -a "$TERMINAL" = console ]; then
			# Any plathome except PC9800 require jfbterm
			# to display japanese fonts on console.
			WRAPPER="/usr/bin/jfbterm -e"
		fi
		;;
	# On pseudo and serial, we couldn't know
	# that terminal can display japanese fonts...
	esac
	;;
esac

if [ "$1" = "-nnt" ]; then
	WRAPPER=""
	shift
fi

######################################################################
##	Execute Wrapper.
######################################################################
if [ ! -z "$WRAPPER" -a -x "$WRAPPER" ]; then
	$WRAPPER /bin/true && exec $WRAPPER $@
fi

exec $@

================================== cut ===============================


Next are my diffs to the boot-floppies package itself.  These are against
pehc cvs.  Some things will change - this hardwires it for serial
console, for example.  If we can handle gzipped kernel images, we
maybe don't need the enw resc3700 size, for example.

================================== cut ===============================
diff -ur -x CVS boot-floppies.ori/Makefile boot-floppies/Makefile
--- boot-floppies.ori/Makefile	Tue May  1 17:57:12 2001
+++ boot-floppies/Makefile	Mon May  7 20:29:56 2001
@@ -147,7 +147,7 @@
 	$(MAKE) root.tar.gz
 else
 ifeq ($(architecture), hppa)
-	$(MAKE) root.tar.gz
+	$(MAKE) root.tar.gz resc3700.bin drivers.tgz
 else
 	echo unsupported architecture: $(architecture); false
 endif
diff -ur -x CVS boot-floppies.ori/kernel.sh boot-floppies/kernel.sh
--- boot-floppies.ori/kernel.sh	Tue May  1 17:19:00 2001
+++ boot-floppies/kernel.sh	Mon May  7 18:05:49 2001
@@ -101,7 +101,7 @@
     cp $extractdir/boot/vmlinux-* linux$subarch
     cp $extractdir/boot/vmlinux.coff-* linux$subarch.coff
 else
-    cp $extractdir/boot/vmlinuz* linux$subarch
+    cp $extractdir/boot/vmlinuz* linux$subarch || cp $extractdir/boot/vmlinux* linux$subarch
 fi
 
 info "creating sys_map$subarch.gz"
diff -ur -x CVS boot-floppies.ori/make/hppa.vars boot-floppies/make/hppa.vars
--- boot-floppies.ori/make/hppa.vars	Tue May  1 18:17:02 2001
+++ boot-floppies/make/hppa.vars	Mon May  7 18:55:22 2001
@@ -5,6 +5,8 @@
 # see 'checks'
 tools_checks		:=
 
+arch_rootdisk_deps	:= drivers.tgz resc3700.bin
+
 # additional check rules to run, see 'checks'
 arch_addl_checks	:= 
 
diff -ur -x CVS boot-floppies.ori/make/rescue boot-floppies/make/rescue
--- boot-floppies.ori/make/rescue	Tue May  1 17:19:01 2001
+++ boot-floppies/make/rescue	Mon May  7 18:45:04 2001
@@ -40,6 +40,14 @@
 	$(ROOTCMD) ./rescue.sh $(archive) "$*" $(kver) $< \
 		2880 $(debianversion) "" $(LINGUA) $(SFONT)
 
+resc3700%.bin:	$(root_for_rescue) linux% rescue.sh $(arch_rescue_deps)
+	$(ROOTCMD) ./rescue.sh $(archive) "$*" $(kver) $< \
+		3700 $(debianversion) "" $(LINGUA) $(SFONT)
+
+resc3700.bin:	root.bin linux rescue.sh $(arch_rescue_deps)
+	$(ROOTCMD) ./rescue.sh $(archive) "$*" $(kver) $< \
+		3700 $(debianversion) "" $(LINGUA) $(SFONT)
+
 resc2880%.bin:	$(root_for_rescue) linux% rescue.sh $(arch_rescue_deps)
 	$(ROOTCMD) ./rescue.sh $(archive) "$*" $(kver) $< \
 		2880 $(debianversion) "" $(LINGUA) $(SFONT)
diff -ur -x CVS boot-floppies.ori/release.sh boot-floppies/release.sh
--- boot-floppies.ori/release.sh	Tue May  1 17:19:00 2001
+++ boot-floppies/release.sh	Mon May  7 18:53:34 2001
@@ -68,10 +68,15 @@
 
   cd $release
 
+  mkdir images-3.70
   mkdir images-2.88
   mkdir images-1.44
   mkdir images-1.20
 
+  for f in resc3700*.bin; do
+    [ ! -f $f ] || mv $f images-3.70/rescue${f#resc3700}
+  done
+
   for f in resc2880*.bin; do
     [ ! -f $f ] || mv $f images-2.88/rescue${f#resc2880}
   done
@@ -96,6 +101,7 @@
     [ ! -f $f ] || mv $f images-1.20/driver${f#drv12}
   done
 
+  rmdir images-3.70 2>/dev/null || true	# in case empty
   rmdir images-2.88 2>/dev/null || true	# in case empty
   rmdir images-1.44 2>/dev/null || true	# in case empty
   rmdir images-1.20 2>/dev/null || true	# in case empty
@@ -145,6 +151,9 @@
   ia64)
 	do_arch_ia64 $otherargs
 	;;
+  hppa)
+	do_arch_hppa $otherargs
+	;;
   *)
   	echo "Unsupported arch $arch"
 	exit 1
@@ -898,6 +907,11 @@
 }
 
 do_arch_ia64()
+{
+	echo "Nothing here yet!"
+}
+	
+do_arch_hppa()
 {
 	echo "Nothing here yet!"
 }
diff -ur -x CVS boot-floppies.ori/scripts/rootdisk/SMALL_BASE_LIST_all boot-floppies/scripts/rootdisk/SMALL_BASE_LIST_all
--- boot-floppies.ori/scripts/rootdisk/SMALL_BASE_LIST_all	Tue May  1 19:29:07 2001
+++ boot-floppies/scripts/rootdisk/SMALL_BASE_LIST_all	Mon May  7 14:44:02 2001
@@ -1,6 +1,6 @@
 bin/ash
 bin/busybox
-usr/bin/nano
+bin/nano-tiny
 etc/protocols
 sbin/MAKEDEV
 sbin/badblocks
diff -ur -x CVS boot-floppies.ori/utilities/dbootstrap/baseconfig.c boot-floppies/utilities/dbootstrap/baseconfig.c
--- boot-floppies.ori/utilities/dbootstrap/baseconfig.c	Tue May  1 17:19:01 2001
+++ boot-floppies/utilities/dbootstrap/baseconfig.c	Mon May  7 20:44:51 2001
@@ -412,6 +412,11 @@
     update_console_info();
 #endif
 
+/* Hmm, some are serial, some are graphical */
+#if #cpu (hppa)
+    update_console_info();
+#endif
+
   /* If on serial console, get rid of kbd files and setserial startup.
      The kbd package will be purged during final configuration. */
   if (serialConsole >= 0)
diff -ur -x CVS boot-floppies.ori/utilities/dbootstrap/dbootstrap.h boot-floppies/utilities/dbootstrap/dbootstrap.h
--- boot-floppies.ori/utilities/dbootstrap/dbootstrap.h	Tue May  1 17:19:01 2001
+++ boot-floppies/utilities/dbootstrap/dbootstrap.h	Mon May  7 20:47:23 2001
@@ -298,6 +298,10 @@
 # define NFSROOT                /* network boot */
 # define LOCALTIME              /* ask for GMT or localtime clock setup */
 
+#elif #cpu (hppa)
+
+# define SERIAL_CONSOLE         /* serial console recognized */
+
 #endif
 
 #ifdef DO_EJECT
================================== cut ===============================


One last thing, you need to grab debiandoc.decl from somewhere (I
found it on an x86 debian box) and put it in

boot-floppies/documentation/declaration/debiandoc.decl

so that the documentation part of the build works.


So, with that lot, and some luck, you should be able to build the
boot-floppies package.

Richard





From - Thu Nov 08 21:17:33 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc 2.2.3 make check status
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> 
> I'm not sure people actually ran make check against glibc 2.2.1, so I don't
> know how this compares.  Maybe 2.2.3 just has more tests than 2.2.1 did...

make check for 2.2.1 with the large file changes should only have failed
some of the fp tests.

>  * all the tests in math/ fail.  pb knows what these problems are.

If all the tests fail that's a problem. In 2.2.1 the fp  tests passed except
the ones where glibc computed something like trig functions, and those tests
were off in their least-significant bits.





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] boot-floppies (installer)
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Xref: news.gmane.org gmane.linux.ports.parisc:11009

Hi, this is an attempt to document how I'm making boot-floppies
at the moment, and to identify packages that need to get
fed through the buildd.  There may well be things in the
list that we don't really need, but that debootstrap currently
references.


Packages I needed, not yet available from Debian mirrors.  Some
of these were needed to build, rather than actually packaged
within the boot-floppies.  Just about all are available from
pehc debs, base, ~pjlahaie, or ~bame, except for apt-uitls,
I think.

I have horrible problems with *slang*, *newt* in lib and usr/lib,
and how things such as dbootstrap and whiptail try to reference
libslang.so.  At the moment I'm running with newer packages on
the build system, and older ones in the boot-floppies.  Hopefully
a synchronised rebuild of the relevant packages will sort things
out there.  Typical problem is that something references
/usr/lib/libslang.so, which doesn't exist (depending on what
vintage of packages you use).

Anyway, the packages I'd like to find in a debian mirror:


telnetd			(just for my use, not part of b-f build)

gcc-3.0
libgcc300
cpp-3.0
libc6-dev

debootstrap		but it needs my patch

kernel-package		pb has one on pehc

kernel-image-2.4.0	pb has one, but doesn't contain modules
			I build one below
apt
apt-utils
console-tools
console-tools-libs
exim
ldso
libc6
libldap2
libnewt0
libstdc++2.10
libstdc++2.10-glibc2.2
libstdc++3.0
man-db
modutils
ncurses-bin
netkit-inetd
netkit-ping
palo
slang1			pb's fix for .so link
slang1-dev
slang1-pic
whiptail		whiptail_0.50.8-2_hppa.deb, pehc/base works
			with the new slang above.  Arghhh!
telnet
glibc-pic
libnewt
libnewt-dev
recode
sp			(replaced by sgml-data??)
libsp1
librecode0
pointerize
libgd
libgd-dev
python-xml
busybox			need new source from above
g++-3.0
libstdc++3.0-dev



===========================================================================

Build process, building on a500.

Install base.tgz from the 0.6 .iso.
Reboot
apt-get update
apt-get upgrade
# whiptail crashes lots, but seems ok once the upgrade is done
apt-get dist-upgrade
apt-get install gcc-3.0-base
apt-get install portmap

telnetd_0.17-9_hppa.deb						# pehc/debs

apt-get install binutils

gcc-3.0_3.0-0pre010223_hppa.deb					# pehc/newcompilers
libgcc300_3.0-0pre010223_hppa.deb				# pehc/newcompilers
cpp-3.0_3.0-0pre010223_hppa.deb					# pehc/newcompilers
libc6-dev_2.2.1-1_hppa.deb					# pehc/newcompilers

apt-get install cvs

# hack /var/lib/dpkg/status to add perl5 entry.

apt-get install dpkg-dev gcc debhelper

cd /usr/src
cvs checkout boot-floppies

cd /usr/src/boot-floppies && <apply my patch>

mkdir documentation/declaration/
cp /share/debiandoc.decl documentation/declaration/

# /archive/debian/local/ holds our local deb archive

mkdir /archive
mkdir /archive/debian
mkdir /archive/debian/local

## need to build debootstrap with my patches

apt-get source debootstrap

# note, having applied the patch, remove the 
#    base="$(without_package "liblockfile1" "$base")"
# line that it added to woody.

cd /usr/src/debootstrap && <apply my patch>
dpkg-buildpackage -b -uc

cd /usr/src
cp debootstrap_0.1.7_hppa.deb /archive/debian/local/
dpkg -i debootstrap_0.1.7_hppa.deb				# local

# need kernel-package to build kernel-image

dpkg -i /mnt/parisc/bame.debs/kernel-package_7.37-0pa2_all.deb	# pehc/bame

## build kernel-image

cd /usr/src
cvs checkout linux
cd linux
make mrproper

# change defconfig to enable modules and include at least one
# module  (probably just a make config would do...)

CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y
CONFIG_PA7100=y
CONFIG_PA11=y
CONFIG_CHR_DEV_SG=m

make oldconfig
make-kpkg --revision 0rgh clean kernel_image

cp cp /usr/src/kernel-image-2.4.0_0rgh_hppa.deb /archive/debian/local	# local

## create our http install tree

cd /usr/src
mkdir http-tree
mkdir http-tree/dists
mkdir http-tree/dists/woody
mkdir http-tree/dists/woody/main
mkdir http-tree/dists/woody/main/binary-hppa
mkdir http-tree/dists/woody/main/binary-hppa/base
mkdir http-tree/dists/woody/main/disks-hppa
mkdir http-tree/dists/woody/main/disks-hppa/current
mkdir http-tree/dists/woody/main/disks-hppa/current/images-1.44

cat > http-tree/dists/woody/Release << EOF
Origin: Debian
Label: Debian
Suite: testing
Codename: woody
Date: Wed, 04 Apr 2001 19:31:44 UTC
Architectures: hppa
Components: main
Description: Debian HPPA Testint distribution - Not Released
md5sum:f2e6f31ff5777f3961b7ee51c61ac409 73112 main/binary-hppa/Packages
EOF


## gather all the packages debootstrap will need to do the base install

# all referenced, anyway - may not all be needed, perhaps
# drop them in http-tree/dists/woody/main/binary-hppa/base

apt			# pehc/base
apt-utils		# n/a
at
base-config
base-files
base-passwd
bash
bsdmainutils
bsdutils
console-common
console-data
console-tools		# pehc/debs
console-tools-libs	# pehc/debs
cpio
cron
debconf
debianutils
diff
dpkg
e2fsprogs
ed
exim			# pehc/debs
fdutils			# n/a
fileutils
findutils
gcc-3.0-base
gettext-base
grep
groff
gzip
hostname
ifupdown
info
ipchains
ldso			# pehc/debs
libc6			# pehc/newcompilers
libdb2
libgdbmg1
libident
libldap2		# pehc/debs
liblockfile1
libncurses4
libncurses5
libnewt0		# pehc/base, old one!
libopenldap-runtime
libopenldap1
libpam-modules
libpam-runtime
libpam0g
libpcre3
libperl5.6
libpopt0
libreadline4
libsasl7
libstdc++2.10		# pehc/base
libstdc++2.10-glibc2.2	# n/a
libstdc++3.0		# pehc/newcompilers
libterm-slang-perl
libterm-stool-perl
libwrap0
login
logrotate
mailx
makedev
man-db			# pehc/debs
manpages
mawk
modconf
modutils		# debian, but way out of date
mount
nano
ncurses-base
ncurses-bin		# pehc/debs
net-tools
netbase
netkit-inetd		# pehc/debs
netkit-ping		# pehc/debs
nvi
palo			# pehc/debs
passwd
perl-base
ppp
procps
sed
shellutils
slang1			# pehc/debs - pb's fix for .so link
sysklogd
sysvinit
tar
tasksel
tcpd
telnet			# pehc/debs
textutils
update
util-linux
whiptail		# whiptail_0.50.8-2_hppa.deb pehc/base

## Create the Packages file

cd /usr/src/http-tree
dpkg-scanpackages dists/woody/main/binary-hppa/base /dev/null > \
	dists/woody/main/binary-hppa/Packages


## check we have all the packages for debootstrap

cd /usr/src
debootstrap woody /usr/src/debo.tmp file:/usr/src/http-tree 2>&1 | tee debo.log

# At this point you can play with debootstrap/woody script to
# experiment with the package set.


## install all the .debs we need to build boot-floppies

# First it wants pointerize, which I can find anywhere...

cd /usr/src
apt-get -b source pointerize

glibc-pic		# libc6-pic, pehc/newcompilers
slang1-pic		# pehc/debs, pb's fix for .so link
libnewt			# new one from pehc/debs
libnewt-dev		# pehc/debs
libpopt-dev		
zlib1g-dev
recode			# pehc/debs
gettext
m4
sp			# pehc/debs (replaced by sgml-data??)
libsp1			# pehc/debs
sgml-base
debiandoc-sgml
libsgmls-perl
libtext-format-perl
sgmlspl
librecode0		# pehc/debs
slang1-dev		# pehc/debs, pb's fix for .so link
libi18n-langtags-perl
libpaperg
gsfonts
libfreetype6
libjpeg62
libkpathsea3
libpng2
libtiff3g
libwww0
libxaw7
tetex-base
tetex-bin
tetex-extra
texinfo
xfree86-common
xlibs
libhtml-parser-perl
libhtml-tagset-perl
libmime-base64-perl
libnet-perl
liburi-perl
libwww-perl
perl-5.6
pointerize		# local
libttf2
libgd			# pehc/debs
libgd-dev		# pehc/debs
bison
ash
dpkg-awk
flex
python-base
python-dev
python-xml		# pehc/debs
busybox			# pehc/pjl for md5sum fix
bf-utf-source
build-essential
g++-3.0			# pehc/newcompilers
libstdc++3.0-dev	# pehc/newcompilers
g++

## fix libslang links (really necessary?)

cd /usr/lib && rm libslang.so
cd /lib && ln -s libslang.so.1 libslang.so
cd /usr/src


## add some more debs to our local archive.  Old libnewt0 used here..

cd /usr/src/http-tree/dists/woody/main/binary-hppa/base
cp modconf_0.2.32_all.deb modutils_2.4.2-1_hppa.deb  whiptail_0.50.8-2_hppa.deb \
	console-data_1999.08.29-21_all.deb base-passwd_3.2.1_hppa.deb \
	e2fsprogs_1.19-4_hppa.deb libnewt0_0.50.8-2_hppa.deb \
	libpopt0_1.6.2-5_hppa.deb makedev_2.3.1-52_all.deb netbase_4.05_all.deb \
	net-tools_1.60-1_hppa.deb slang1_1.4.4-2_hppa.deb libc6_2.2.1-1_hppa.deb \
	net-tools_1.60-1_hppa.deb util-linux_2.11b-4_hppa.deb /archive/debian/local
ash
nano-tiny
pump
eject
busybox			# pehc/pjl

## and build boot-floppies

cd /usr/src/boot-floppies
dpkg-buildpackage -b -uc 2>&1 | tee LOG

# currently dying in documentation build , but it worked better
# yesterday :(  Anyway, all the important bits are built.

## populate the rest of the http-tree

cd /usr/src/boot-floppies
cp drivers.tgz /usr/src/http-tree/dists/woody/main/disks-hppa/current
cp resc3700.bin /usr/src/http-tree/dists/woody/main/disks-hppa/current/images-1.44


## fix up md5sum and size of Packages file in Release??


## Don't forget to add /sbin/termwrap to root.bin before you
## try to boot from it.



## Outstanding problems:

2nd stage install is _really_ slow - kernel scheduler bug?

When adding a user in the 2nd stage install:

  /var/lib/dpkg/info/base-config.config: adduser: command not found

and

  debconf: DbDriver "configdb" error: /var/cache/debconf/config.dat is \
			locked by another process

followed by the 2nd stage installer starting again at the beginning.
Could be due to me ctrl-c-ing it when I thought it had hung.


Richard





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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc 2.2.3 make check status
Date: Tue, 8 May 2001 17:53:31 +0100
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Cc: Matthew Wilcox <matthew@wil.cx>, parisc-linux@parisc-linux.org
To: Paul Bame <bame@riverrock.org>
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On Tue, May 08, 2001 at 07:48:05AM -0600, Paul Bame wrote:
> make check for 2.2.1 with the large file changes should only have failed
> some of the fp tests.

Damn.  Then people need to fix these new failures.  I'm working on the
linuxthreads/* and rt/* tests.

> If all the tests fail that's a problem. In 2.2.1 the fp  tests passed except
> the ones where glibc computed something like trig functions, and those tests
> were off in their least-significant bits.

not _all_ the math/* tests fail, I was exaggerating (it just felt
like it!)  there's 4-5 which fail... want to check them out, be sure we
aren't worse than glibc 2.2.1?

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc 2.2.3 make check status
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An updated version of the list.  There's plenty of opportunity for people
to help with this.

Floating-point
--------------

 * Some of the math/ tests fail.  pb is looking into these.
 * stdlib/strtold fails.  This is due to our long double being 64 bit and
   glibc thinks its 128 bit.  Bug #119
 * misc/tst-efgcvt fails.  (Maybe another long double problem?)

Threads
-------

 * linuxthreads/ex10, ex15 & ex17 fail.  I'm working on these.
 * rt/tst-aio4 fails.  I'm working on this one too.

Dynamic Loading
---------------

 * all the tests in dlfcn/ fail.  I haven't investigated these.
 * elf/resolvfail and elf/constload1 fail.  Not investigated.  Probably other
   tests in elf/ also fail.

Misc
----

 * grp/testgrp fails.  This is a generic glibc 2.2.3 problem, the fix
   is available from upstream.
 * posix/globtest fails.  Haven't investigated.
 * gmon/tst-sprofil fails.  Looks like it needs to be ported to Linux/hppa.

-- 
Revolutions do not require corporate support.




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Hi Matthieu,


> I currently try to make a lan boot, and I got the same error.
> When I set NFSROOT=x.x.x.x:/path/to/nfs/root
> it resolves the problem.

I'm just bumbling along with all this ATM.  So I'm basically relying 
the the goodwill and good work done by those on the list.

Suffice to say that I have the HP box booting up linux now, just 
required I change my network setup to look more like the one 
expected (configured) in the lifimage.. much less of an issue for me 
than working out how to configure hte lifimage.

Anyway to add to my tale of woe, I grabbed the serial lifimage from 
pehc, and with that I configured the HP box to use the esrial port 
for my console.. much to my dismay I have now found that the 
cable I have doesn't fit all the way into the serial port on the hp 
box.. so I can't see ANY thing.. so until I get a serial cable that fits 
fully into the port.. I'm stuck... :-/

Thanks to grant, willy and a few others in irc the other night too... 
I'm grateful for you guys answering dumb questions when there are 
other more important things to sort out.  :)


Pete.





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Subject: [parisc-linux] framebuffer drivers, sound
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Hi,

I tried out the latest kernel and debian packages on my 712/60, and its
running
now for three days without crash, you really made amazing progress
the last few month!

The stifb driver is working for me, but the colors are completely wrong
and the
system crashes if i try to cat /dev/fb0.

I wonder if HP will release specs, we could write framebuffer drivers
that talk
directly to the gfx card, allow mode switching and (is it possible?) set
a linear
mode instead of a planed mode.

The harmony driver does not work for me, if I try to play sound, I get
silence
and then after a few seconds a stange noise, then silence, then strange
noise
and so on.

anyway, keep up the good work!


Andreas








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Subject: Re: [parisc-linux] framebuffer drivers, sound
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On Wed, May 09, 2001 at 12:53:31AM +0200, Andi wrote:
> The stifb driver is working for me, but the colors are completely wrong
> and the
> system crashes if i try to cat /dev/fb0.

Yup, the stifb is buggy.  Please, if you have time, it would be great
if you could help clean it up and get it working.  sticon works rather
better but it is still not great.  The STI docs are publically available
from the documentation page.

-- 
Revolutions do not require corporate support.




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Matthew Wilcox wrote:

> On Wed, May 09, 2001 at 12:53:31AM +0200, Andi wrote:
> > The stifb driver is working for me, but the colors are completely wrong
> > and the
> > system crashes if i try to cat /dev/fb0.
>
> Yup, the stifb is buggy.  Please, if you have time, it would be great
> if you could help clean it up and get it working.

I hope that I will find the time, but I cant promise anything.

> sticon works rather
> better but it is still not great.

well, sticon has correct colors, but works worse than stifb
(swiching a vt does not redraw the whole screen,
dselect is not usable ...)

> The STI docs are publically available
> from the documentation page.

Yeah, the STI docs.... HP should release the hardware level
docs, this is the only way to implement a full featured fbdev
driver. A stifb would still be usefull since it is works for
every HP gfxcard with STI BIOS, but a special driver for each
gfxcard would be nice to have things like mode switching.

Andreas - "I want color recovery!!!" ;-)







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Subject: Re: [parisc-linux] framebuffer drivers, sound
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On Wed, May 09, 2001 at 02:00:12AM +0200, Andi wrote:
> Yeah, the STI docs.... HP should release the hardware level
> docs, this is the only way to implement a full featured fbdev
> driver. A stifb would still be usefull since it is works for

yeah, but right now we're all too busy working on important things
(eg SMP, glibc, etc) to spend time looking for or sanitising this
documentation.

-- 
Revolutions do not require corporate support.




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From: "Brian S. Julin" <bri@mojo.calyx.net>
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Subject: Re: [parisc-linux] framebuffer drivers, sound
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As long as it gets released eventually -- my guess is X isn't going
to be all that fast on a planar FB where you can only write
one planemask at a time and must use a BIOS call to switch
the planemask. :-)

--
Brian S. Julin

On Wed, 9 May 2001, Matthew Wilcox wrote:

> On Wed, May 09, 2001 at 02:00:12AM +0200, Andi wrote:
> > Yeah, the STI docs.... HP should release the hardware level
> > docs, this is the only way to implement a full featured fbdev
> > driver. A stifb would still be usefull since it is works for
>
> yeah, but right now we're all too busy working on important things
> (eg SMP, glibc, etc) to spend time looking for or sanitising this
> documentation.
>
> --
> Revolutions do not require corporate support.
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
>






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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] boot-floppies (installer)
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On Tue, May 08, 2001 at 03:30:29PM +0100, Richard Hirst wrote:
> ## Don't forget to add /sbin/termwrap to root.bin before you
> ## try to boot from it.

Doh!  termwrap needs adding to the installed system, after install stage
1, but before booting from the disk to run stage 2.

Richard





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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] framebuffer drivers, sound
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Hi,

I had hacked up a stifb driver for my 715/64 (Artist GFX card) a few weeks 
ago, which will give you at least correct colors. If you want to test it you 
may download the current (unfinished and ugly!) version from
ftp://people.redhat.com/hdeller/parisc_stifb ,
put both files in /drivers/video/sti and recompile.
This version is based on the XFree86-sources and doesn't fix the cat/dev/fb0 
problem yet.

Greetings,
Helge

On Wednesday 09 May 2001 01:41, Matthew Wilcox wrote:
> On Wed, May 09, 2001 at 12:53:31AM +0200, Andi wrote:
> > The stifb driver is working for me, but the colors are completely wrong
> > and the
> > system crashes if i try to cat /dev/fb0.
>
> Yup, the stifb is buggy.  Please, if you have time, it would be great
> if you could help clean it up and get it working.  sticon works rather
> better but it is still not great.  The STI docs are publically available
>
> >from the documentation page.




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From: Andi <andi@fischlustig.de>
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Subject: Re: [parisc-linux] framebuffer drivers, sound
Date: Wed, 09 May 2001 23:43:17 +0200
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To: Helge Deller <deller@gmx.de>
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Helge Deller wrote:

> Hi,
>
> I had hacked up a stifb driver for my 715/64 (Artist GFX card) a few weeks
> ago, which will give you at least correct colors. If you want to test it you
> may download the current (unfinished and ugly!) version from
> ftp://people.redhat.com/hdeller/parisc_stifb ,

it works for me. colors are nice again. Why isnt your patch merged in?

I added
disp->scrollmode = SCROLL_YREDRAW;
at the end of sti_set_disp() in stifb.c

this makes scrolling A LOT faster.


Andreas








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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] framebuffer drivers, sound
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On Wednesday 09 May 2001 23:43, Andi wrote:
> Helge Deller wrote:
> > Hi,
> >
> > I had hacked up a stifb driver for my 715/64 (Artist GFX card) a few
> > weeks ago, which will give you at least correct colors. If you want to
> > test it you may download the current (unfinished and ugly!) version from
> > ftp://people.redhat.com/hdeller/parisc_stifb ,
>
> it works for me. colors are nice again. Why isnt your patch merged in?
>
> I added
> disp->scrollmode = SCROLL_YREDRAW;
> at the end of sti_set_disp() in stifb.c
>
> this makes scrolling A LOT faster.
>
> Andreas

Hi Andreas,

the reasons why I haven't checked it in yet are:
1. currently it's an ugly hack,
2. it's still a hack,
3. it only supports artist gfx's (some 712/xxx and 715/xxx machines) atm,
4. I would like to test it more and clean up the sources before I commit it.

Thanks for the SCROLL_YREDRAW patch. I will upload the updated version to the 
above ftp-site as soon as I have tested it.

Greetings,
Helge




From - Thu Nov 08 21:17:35 2018
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From: Andrew Shugg <andrew@neep.com.au>
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Subject: [parisc-linux] Auction - K200 + tape drive (Wisconsin USA)
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A nice chap passed this on to me, but unfortunately the server is in
Wisconsin and I'm on the other side of the planet.  And I'll get in
trouble if I buy it.  ;)

HP9000 K200 SMP server, 2 x 100MHz CPUs, 768MB RAM, unknown disk
(presumably a couple of "small" internal SCSI drives).  Comes with
Philips Tape Drive (don't know what this thing is, DDS3 perhaps?).  The
photo features an HP rack but there's no mention of that  being included
with the server (unfortunately).

  http://www.bid4assets.com/auction/?auctionID=27258&EID=2345894

Current bid is US$150 (state tax of 5.5% will go on top), auction closes
May 22nd 2001, and I hope some kind hppa-linux hacker can give this old
box a home.  =)  

Andrew.

P.S.  It'd probably make a great hppa autobuilder box for Debian?

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] exim crash
Date: Thu, 10 May 2001 11:37:57 +0100
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Hi,
  Just grabbed exim_3.22-4_hppa.deb from the debian archive, and got
the following crash on installing/configuring it.  exim_3.22-2_hppa.deb
from pehc is ok.  I was able to reproduce the crash by trying to send
mail with 'mail' (same iaoq value, at least).

Richard


slab login: !!die_if_kernel: exim(18725): Unaligned data reference 28

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001111
r0-3     0000000000000000 000000000009a950 00000000000461d3 000000000009f010
r4-7     000000000009f01d 00000000000a0550 0000000000000013 000000000007db64
r8-11    0000000000097950 00000000000996b0 00000000000a0550 00000000000000b8
r12-15   0000000000000020 000000000009b150 00000000000988bc 0000000000079ee0
r16-19   0000000000000028 0000000000097828 0000000000000002 0000000000097828
r20-23   000000000000003a 000000004027e470 000000000009abaa 000000000000003a
r24-27   0000000000079800 000000000000003f 00000000000a0550 0000000000097150
r28-31   000000000009f01c 00000000faf00c48 00000000faf00d00 00000000000461d3
sr0-3    00000000000ce400 00000000000ce400 0000000000000000 00000000000ce400
sr4-7    00000000000ce400 00000000000ce400 00000000000ce400 00000000000ce400

IASQ: 00000000000ce400 00000000000ce400 IAOQ: 00000000000314bf 00000000000314c3
 IIR: 4835016e    ISR: 00000000000ce400  IOR: 000000000009aa07
ORIG_R28: 0000000000000000







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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] nsgmls crash
Date: Thu, 10 May 2001 11:43:37 +0100
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Hi,
  Trying to build the boot-floppies, I get a repeatable crash here:

slab:~# !!die_if_kernel: nsgmls(21734): Unaligned data reference 28

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     0000000000000000 0000000000035880 000000000001f717 00000000faf00740
r4-7     0000000000033080 0000000000036342 0000000000036002 0000000000000004
r8-11    00000000000362d2 00000000000adc10 00000000000af390 00000000000b01d0
r12-15   0000000000000000 00000000ffffffff 00000000000a8ed0 0000000000000000
r16-19   0000000000000000 0000000000000000 0000000000000000 000000000001f5d4
r20-23   00000000402b0710 0000000040265970 000000000001f5d4 0000000000000000
r24-27   0000000040265970 00000000402af588 0000000040265980 0000000000033080
r28-31   0000000000000000 000000000003da00 00000000faf007c0 000000000001f717
sr0-3    000000000027e100 000000000027e100 0000000000000000 000000000027e100
sr4-7    000000000027e100 000000000027e100 000000000027e100 000000000027e100

IASQ: 000000000027e100 000000000027e100 IAOQ: 000000000001f6c7 000000000001f6cb
 IIR: 4835090e    ISR: 000000000027e100  IOR: 0000000000035d07
ORIG_R28: 0000000000000001

luckily all the useful bits have been built before this point.
I wasn't getting this a couple of days ago, I'm keeping my system
pretty much up to date with the debian archive, and don't know what
upgrade introduced this problem.

Richard





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From: Charlie Navarro <charlie_navarro@yahoo.com>
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Subject: [parisc-linux] Problems with debian instalation
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Hello,

first, I want to send a big congratulation to the people that works porting 
Linux to my HP 712/60. If I said: it a good job!!!!, they are a small words. 
The english does not my mother lenguaje.

Ok, I have a question.

I installed my 712/60 from palinux-0.6-32STI.iso and all OK. I had some 
poblems with the keyboard (some sequence of key in vi, in some case fell down 
the system) btw my problem is the debian dependences.

I made a "apt-get dselect-upgrade" with out problems, with the original 
sources.list that it came in the iso.
Now I have the dependences problems to install gcc. cpp depends of cpp-3.0 
but it is not installable. xbase-clients depends of cpp.

Ok, I want to run X, but I can not. I want to compile X but I don't have the 
gcc. I know the step to make a compiler, 
http://mkhppa1.esiee.fr/en/compile.html is easy to follow. 
Are another site to download the deb, and the correct dependences?

Thank in advance

Charlie




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On Thu, May 10, 2001 at 09:53:02AM -0300, Charlie Navarro wrote:
> Are another site to download the deb, and the correct dependences?

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/debs
ftp://puffin.external.hp.com/pub/parisc/binaries/debian/newcompilers-20010326
ftp://puffin.external.hp.com/pub/parisc/binaries/debian/newlibc-20010425

Richard





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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Auction - K200 + tape drive (Wisconsin USA)
Date: Thu, 10 May 2001 11:01:42 -0600
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Andrew Shugg wrote:
...
> > iirc, K200 is similar to the C100/C110 but mostly with HP-PB
> > and some GSC "slots" . GSC "slots" are for "3x5" form factor
> > (3 by 5 inches) and not the EISA-formfactor in the workstations.
> 
> So ... meaning hard to get bits for?  Or requires different drivers
> which haven't been written in linux-hppa?

HPPB requires different drivers. Main problem for EFGHI-class servers.

GSC drivers are the same regardless of form factor.
At first I thought it would be harder to find 3x5 add-on cards.
But I'm not sure about it or if those cards are more expensive.

> > Probably not for debian autobuilder. We are setting up newer
> > machines as autobuilder.  Maybe interesting for someone with
> > 19" rack and plenty of floor space.
> 
> Well I might be alone in wanting to collect lonely old boxes then.  ;P

Definitely not. There's a pdp11 group here in silicon valley who
keep these boxes running in thier garages... I'm not joking.

And the k200 is actually a useful box if one has the power/space for it. 
(Has remote console for example)

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Charlie Navarro writes...

> I installed my 712/60 from palinux-0.6-32STI.iso and all OK. I had some 
> poblems with the keyboard (some sequence of key in vi, in some case fell down
> the system)

This is a known problem with STI console, but no bug was filed in the BTS. So 
I just filed one. IIRC, setting TERM to vt100 helps.

> I made a "apt-get dselect-upgrade" with out problems, with the original 
> sources.list that it came in the iso.
> Now I have the dependences problems to install gcc. cpp depends of cpp-3.0 
> but it is not installable. xbase-clients depends of cpp.

The gcc package is just a pseudopackage that depends on the right version gcc 
for the architecture, in this case gcc-3.0. Since gcc-3.0 is not yet in the 
archive it can't find the dependency. As Richard pointed out, use the debs on 
puffin.external.hp.com for now. I am working on getting those integrated and 
in the Debian archive.

> Ok, I want to run X, but I can not. I want to compile X but I don't have the 
> gcc.

XFree86 is in the Debian archive but you can't run a local Xserver yet. You 
can run apps remotely and even use Xnest. Does this answer your question?

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






From - Thu Nov 08 21:17:35 2018
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X-Mozilla-Keys:                                                                                 
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From: Stan Sieler <sieler@allegro.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Auction - K200 + tape drive (Wisconsin USA)
Date: Thu, 10 May 2001 11:14:12 -0700 (PDT)
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Cc: andrew@neep.com.au (Andrew Shugg),
	parisc-linux@lists.parisc-linux.org
To: grundler@puffin.external.hp.com (Grant Grundler)
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Xref: news.gmane.org gmane.linux.ports.parisc:11029

Re:

> > Well I might be alone in wanting to collect lonely old boxes then.  ;P
> 
> Definitely not. There's a pdp11 group here in silicon valley who
> keep these boxes running in thier garages... I'm not joking.

People interested in collecting antique computers might want to check
out the Classic Computer mailing list & archives.

   To subscribe to the Classic Computer mailing list, send a mail message 
   to: majordomo@classiccmp.org

   with the body of the message being:
      subscribe classiccmp youraddress@yourdomain

   To post a message to it, send to:
      classiccmp@classiccmp.org

   Classic Computer mailing list archives:
      http://www.classiccmp.org

In the S.F. Bay Area, we have the Bay Area Computer Collectors' List.
...email me for subscription particulars.


Stan (sitting next to the IMSAI 8080 and IBM 5110 in my office) Sieler




From - Thu Nov 08 21:17:35 2018
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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PS2 Mouse support
Date: Fri, 11 May 2001 03:25:07 +0200
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To: "parisc-linux@parisc-linux.org" <parisc-linux@parisc-linux.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:11030

This is a multi-part message in MIME format.
--------------FE55E5BB576DF120F532BB7E
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi all,

	I finally released my patch in order to get the PS2 mouse support. It
is working with GPM if you run STI-console with the Deller's frambuffer
available at ftp://people.redhat.com/hdeller/parisc_stifb

	This patch can be downloaded from our website
http://www.esiee.fr/puffin

Feedback is always appreciated, Thomas
ESIEE Team

PS: If someone want to commit it, please do!
--------------FE55E5BB576DF120F532BB7E
Content-Type: text/plain; charset=us-ascii;
 name="mouse.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="mouse.patch"

diff -Nru linuxbf/drivers/char/hp_keyb.h linux/drivers/char/hp_keyb.h
--- linuxbf/drivers/char/hp_keyb.h	Thu Jan  1 01:00:00 1970
+++ linux/drivers/char/hp_keyb.h	Fri May 11 02:10:41 2001
@@ -0,0 +1,60 @@
+/*  
+ *    LASI PS/2 keyboard/psaux header for HP-PARISC workstations
+ *
+ *    Copyright 2001    Marteau Thomas <marteaut@esiee.fr>
+ *
+ *    This file contains all the data needed by hp_keyb.c and hp_psaux.c
+ *
+ *    2001/05/10       Try to compact the code in the two files
+ *                  
+ */
+
+/* These defines are not used! */
+#define KBD_ECHO	0xEE		/* in/out */
+#define KBD_DEFAULT	0xF6		/* out */
+#define KBD_DIAGFAIL	0xFD		/* in */
+
+/* Only in hp_keyb.c */
+#define KBD_BREAK	0xF0		/* in */
+
+/* Standard mouse behaviour parameters */
+
+#define AUX_REPLY_ACK   0xFA            /* Command byte ACK. */
+#define AUX_RECONNECT   0xAA            /* scancode when ps2 device is plugged (back) in */
+
+/* PA-RISC define */
+#define LASI_OFFSET     0x0100
+
+#define	LASI_ID		0x00
+#define LASI_RESET	0x00
+#define LASI_RCVDATA	0x04
+#define LASI_XMTDATA	0x04
+#define LASI_CONTROL	0x08
+#define LASI_STATUS	0x0C
+
+/* Control register bits */
+
+#define LASI_CTRL_ENBL		0x01	/* enable interface */
+#define LASI_CTRL_LPBXR		0x02	/* loopback operation */
+#define LASI_CTRL_DIAG		0x20	/* directly control clock/data line */
+#define	LASI_CTRL_DATDIR	0x40	/* data line direct control */
+#define	LASI_CTRL_CLKDIR	0x80	/* clock line direct control */
+
+/* Status register bits */
+
+#define LASI_STAT_RBNE		0x01
+#define LASI_STAT_TBNE		0x02
+#define LASI_STAT_TERR		0x04
+#define LASI_STAT_PERR		0x08
+#define LASI_STAT_CMPINTR	0x10
+#define LASI_STAT_DATSHD	0x40
+#define LASI_STAT_CLKSHD	0x80
+
+
+
+
+
+
+
+
+
diff -Nru linuxbf/drivers/char/hp_psaux.c linux/drivers/char/hp_psaux.c
--- linuxbf/drivers/char/hp_psaux.c	Fri May 11 02:09:08 2001
+++ linux/drivers/char/hp_psaux.c	Fri May 11 02:10:41 2001
@@ -9,7 +9,9 @@
  *			Marteau Thomas (marteaut@esiee.fr)
  * 			Djoudi Malek (djoudim@esiee.fr)
  *	fixed leds control
+ *      implemented the psaux and controlled the mouse scancode
  */
+#include <linux/config.h>
 
 #include <asm/hardware.h>
 #include <asm/keyboard.h>
@@ -17,58 +19,40 @@
 
 #include <linux/types.h>
 #include <linux/ptrace.h>	/* interrupt.h wants struct pt_regs defined */
+#include <linux/interrupt.h>
 #include <linux/sched.h>	/* for request_irq/free_irq */
 #include <linux/ioport.h>
 #include <linux/kernel.h>
-#include <linux/interrupt.h>
 #include <linux/wait.h>
+#include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/pc_keyb.h>
 #include <linux/kbd_kern.h>
 
+/* mouse include */
+#include <linux/miscdevice.h>
+#include <linux/malloc.h>
+#include <linux/random.h>
+#include <linux/spinlock.h>
+#include <linux/smp_lock.h>
+#include <asm/uaccess.h>
+#include <linux/poll.h>
+
+/* HP include */
+#include "hp_keyb.h"
 
 static struct hp_device *lasi_psaux_keyb;
 static void *lasikbd_hpa;
+static void *lasips2_hpa;
 
-
-#define KBD_BAT		0xaa		/* in */
-#define KBD_SETLEDS	0xed		/* out */
-#define KBD_ECHO	0xee		/* in/out */
-#define KBD_BREAK	0xf0		/* in */
-#define KBD_TYPRATEDLY	0xf3		/* out */
-#define KBD_SCANENABLE	0xf4		/* out */
-#define KBD_DEFDISABLE	0xf5		/* out */
-#define KBD_DEFAULT	0xf6		/* out */
-#define KBD_ACK		0xfa		/* in */
-#define KBD_DIAGFAIL	0xfd		/* in */
-#define KBD_RESEND	0xfe		/* in/out */
-#define KBD_RESET	0xff		/* out */
-
-#define	LASI_ID		0x00
-#define LASI_RESET	0x00
-#define LASI_RCVDATA	0x04
-#define LASI_XMTDATA	0x04
-#define LASI_CONTROL	0x08
-#define LASI_STATUS	0x0c
-
-/* Control register bits */
-
-#define LASI_CTRL_ENBL		0x01	/* enable interface */
-#define LASI_CTRL_LPBXR		0x02	/* loopback operation */
-#define LASI_CTRL_DIAG		0x20	/* directly control clock/data line */
-#define	LASI_CTRL_DATDIR	0x40	/* data line direct control */
-#define	LASI_CTRL_CLKDIR	0x80	/* clock line direct control */
-
-/* Status register bits */
-
-#define LASI_STAT_RBNE		0x01
-#define LASI_STAT_TBNE		0x02
-#define LASI_STAT_TERR		0x04
-#define LASI_STAT_PERR		0x08
-#define LASI_STAT_CMPINTR	0x10
-#define LASI_STAT_DATSHD	0x40
-#define LASI_STAT_CLKSHD	0x80
+#ifdef CONFIG_PSMOUSE
+/* mouse section */
+static unsigned char mouse_reply_expected;
+static struct aux_queue *queue;	/* Mouse data buffer. */
+static int aux_count;
+static spinlock_t kbd_controller_lock = SPIN_LOCK_UNLOCKED;
+#endif
 
 
 static inline u8 read_input(void *hpa)
@@ -94,7 +78,6 @@
 static void write_output(u8 val, void *hpa)
 {
 	int wait = 0;
-
 	while (read_status(hpa) & LASI_STAT_TBNE) {
 		wait++;
 		if (wait>10000) {
@@ -111,12 +94,19 @@
 	return;
 }
 
+/* This function is the PA-RISC adaptation of i386 source */
+
+static void aux_write_ack(u8 val)
+{
+      write_output(val,lasikbd_hpa+LASI_OFFSET);
+}
+
 
 static void lasikbd_leds(unsigned char leds)
 {
-	write_output(KBD_SETLEDS, lasikbd_hpa);
+	write_output(KBD_CMD_SET_LEDS, lasikbd_hpa);
 	write_output(leds, lasikbd_hpa);
-	write_output(KBD_SCANENABLE, lasikbd_hpa);
+	write_output(KBD_CMD_ENABLE, lasikbd_hpa);
 #if 0
 	printk("%s(%d)\n", __FUNCTION__, leds); 
 #endif
@@ -149,7 +139,7 @@
 }
 #endif 
 
-int lasi_ps2_reset(void *hpa)
+int lasi_ps2_reset(void *hpa,int id)
 {
 	u8 control;
 
@@ -161,6 +151,14 @@
 	control = read_control(hpa);
 	write_control(control | LASI_CTRL_ENBL, hpa);
 
+	/* initializes the leds at the default state */
+	if (id==0){
+	   write_output(KBD_CMD_SET_LEDS, hpa);
+	   write_output(0, hpa);
+	   write_output(KBD_CMD_ENABLE, hpa);
+	}
+ 
+
 	return 0;
 }
 
@@ -171,34 +169,248 @@
 	++inited;
 }
 
-static u8 handle_lasikbd_event(void *hpa)
+
+/* Greatly inspired by pc_keyb.c */
+
+/*
+ * Wait for keyboard controller input buffer to drain.
+ *
+ * Don't use 'jiffies' so that we don't depend on
+ * interrupts..
+ *
+ * Quote from PS/2 System Reference Manual:
+ *
+ * "Address hex 0060 and address hex 0064 should be written only when
+ * the input-buffer-full bit and output-buffer-full bit in the
+ * Controller Status register are set 0."
+ */
+#ifdef CONFIG_PSMOUSE
+
+static int fasync_aux(int fd, struct file *filp, int on)
+{
+   
+	int retval;
+	
+	retval = fasync_helper(fd, filp, on, &queue->fasync);
+	if (retval < 0)
+		return retval;
+	
+	return 0;
+}
+
+
+static inline void handle_mouse_scancode(unsigned char scancode)
+{
+
+	if (mouse_reply_expected) {
+		if (scancode == AUX_REPLY_ACK) {
+			mouse_reply_expected--;
+			return;
+		}
+		mouse_reply_expected = 0;
+	}
+	else if(scancode == AUX_RECONNECT){
+		queue->head = queue->tail = 0;  /* Flush input queue */
+		return;
+	}
+
+	add_mouse_randomness(scancode);
+	if (aux_count) {
+		int head = queue->head;
+				
+		queue->buf[head] = scancode;
+		head = (head + 1) & (AUX_BUF_SIZE-1);
+		
+		if (head != queue->tail) {
+			queue->head = head;
+			kill_fasync(&queue->fasync, SIGIO, POLL_IN);
+			wake_up_interruptible(&queue->proc_list);
+		}
+	}
+}
+
+static inline int queue_empty(void)
+{
+	return queue->head == queue->tail;
+}
+
+static unsigned char get_from_queue(void)
 {
-	u8 status;
-	extern void handle_at_scancode(int); /* in drivers/char/keyb_at.c */
+	unsigned char result;
+	unsigned long flags;
 
-	while ((status = read_status(hpa)) & LASI_STAT_RBNE) {
-		u8 scancode;
+	spin_lock_irqsave(&kbd_controller_lock, flags);
+	result = queue->buf[queue->tail];
+	queue->tail = (queue->tail + 1) & (AUX_BUF_SIZE-1);
+	spin_unlock_irqrestore(&kbd_controller_lock, flags);
+	return result;
+}
+
+
+/*
+ * Write to the aux device.
+ */
 
-		scancode = read_input(hpa);
+static ssize_t write_aux(struct file * file, const char * buffer,
+			 size_t count, loff_t *ppos)
+{
+	ssize_t retval = 0;
+
+	if (count) {
+		ssize_t written = 0;
 
-		if (inited)
-			handle_at_scancode(scancode);
+		if (count > 32)
+			count = 32; /* Limit to 32 bytes. */
+		do {
+			char c;
+			get_user(c, buffer++);
+			written++;
+		} while (--count);
+		retval = -EIO;
+		if (written) {
+			retval = written;
+			file->f_dentry->d_inode->i_mtime = CURRENT_TIME;
+		}
 	}
 
-	tasklet_schedule(&keyboard_tasklet);
+	return retval;
+}
 
-	return status;
+
+
+static ssize_t read_aux(struct file * file, char * buffer,
+			size_t count, loff_t *ppos)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	ssize_t i = count;
+	unsigned char c;
+
+	if (queue_empty()) {
+		if (file->f_flags & O_NONBLOCK)
+			return -EAGAIN;
+		add_wait_queue(&queue->proc_list, &wait);
+repeat:
+		set_current_state(TASK_INTERRUPTIBLE);
+		if (queue_empty() && !signal_pending(current)) {
+			schedule();
+			goto repeat;
+		}
+		current->state = TASK_RUNNING;
+		remove_wait_queue(&queue->proc_list, &wait);
+	}
+	while (i > 0 && !queue_empty()) {
+		c = get_from_queue();
+		put_user(c, buffer++);
+		i--;
+	}
+	if (count-i) {
+		file->f_dentry->d_inode->i_atime = CURRENT_TIME;
+		return count-i;
+	}
+	if (signal_pending(current))
+		return -ERESTARTSYS;
+	return 0;
 }
+
+
+static int open_aux(struct inode * inode, struct file * file)
+{
+	if (aux_count++) {
+	return 0;
+	}
+	queue->head = queue->tail = 0;		/* Flush input queue */
+	aux_count =1;
+	
+	aux_write_ack(AUX_ENABLE_DEV); /* Enable aux device */
+	
+	return 0;
+}
+
+
+/* No kernel lock held - fine */
+static unsigned int aux_poll(struct file *file, poll_table * wait)
+{
+
+	poll_wait(file, &queue->proc_list, wait);
+	if (!queue_empty())
+		return POLLIN | POLLRDNORM;
+	return 0;
+}
+
+
+static int release_aux(struct inode * inode, struct file * file)
+{
+	lock_kernel();
+	fasync_aux(-1, file, 0);
+	if (--aux_count) {
+	   unlock_kernel();
+		return 0;
+	}
+	unlock_kernel();
+	return 0;
+}
+#endif
+
+
+static u8 handle_lasikbd_event(void *hpa)
+{
+        u8 status_keyb,status_mouse,scancode,id;
+        extern void handle_at_scancode(int); /* in drivers/char/keyb_at.c */
+        
+        /* Mask to get the base address of the PS/2 controller */
+
+        id = gsc_readb(hpa+LASI_ID) & 0x0f;
+        
+        if (id==1) 
+           hpa=hpa-LASI_OFFSET; 
+        lasikbd_hpa=hpa;
+        
+
+        status_keyb = read_status(hpa);
+        status_mouse = read_status(hpa+LASI_OFFSET);
+
+        while ((status_keyb|status_mouse) & LASI_STAT_RBNE){
+           
+           while (status_keyb & LASI_STAT_RBNE) {
+	      
+              scancode = read_input(hpa);
+	      
+	      if (inited)
+	      {
+		 handle_at_scancode(scancode); 
+              }
+	      
+	      status_keyb =read_status(hpa);
+           }
+	   
+#ifdef CONFIG_PSMOUSE
+           while (status_mouse & LASI_STAT_RBNE) {
+             
+	      scancode = read_input(hpa+LASI_OFFSET);
+	      handle_mouse_scancode(scancode);
+              status_mouse=read_status(hpa+LASI_OFFSET);
+	   }
+           status_mouse=read_status(hpa+LASI_OFFSET);
+#endif
+           status_keyb =read_status(hpa);
+        }
+
+        tasklet_schedule(&keyboard_tasklet);
+        return (status_keyb|status_mouse);
+}
+
+
 	
 extern struct pt_regs *kbd_pt_regs;
 
 static void lasikbd_interrupt(int irq, void *dev, struct pt_regs *regs)
 {
-	lasikbd_hpa = dev; /* save "hpa" for lasikbd_leds() */
+   
+	lasips2_hpa = dev; /* save "hpa" for lasikbd_leds() */
 
 	kbd_pt_regs = regs;
 
-	handle_lasikbd_event(lasikbd_hpa);
+	handle_lasikbd_event(lasips2_hpa);
 }
 
 
@@ -230,6 +442,23 @@
 #endif
 };
 
+#ifdef CONFIG_PSMOUSE
+struct file_operations psaux_fops = {
+	read:		read_aux,
+	write:		write_aux,
+	poll:		aux_poll,
+	open:		open_aux,
+	release:	release_aux,
+	fasync:		fasync_aux,
+};
+
+static struct miscdevice psaux_mouse = {
+	PSMOUSE_MINOR, "psaux", &psaux_fops
+};
+#endif
+
+
+
 static int __init
 lasi_ps2_register(struct hp_device *d, struct pa_iodc_driver *dri)
 {
@@ -247,21 +476,27 @@
 		name = "psaux"; /* "mouse" */;
 		break;
 	default:
-		printk(KERN_WARNING "unknown PS/2 port %d found!  Get famous now by reporting this to parisc-linux@parisc-linux.org!\n", id);
+		printk(KERN_WARNING "unknown PS/2 port %d found!  Get famous now by reporting this to parisc-linux@thepuffingroup.com!\n", id);
 		name = "unknown";
 	}
 
-	if (id==0) {
-		printk("Initializing Lasi PS/2-%s port at 0x%p...\n", name, hpa);
-	} else {
-		printk("Support for Lasi PS/2-%s not yet available !\n", name); /* FIXME */
-	}
+	if (id==0)
+	    printk("Initializing Lasi PS/2-%s port at 0x%p...\n", name, hpa);
+#ifdef CONFIG_PSMOUSE
+	else 
+	   if (id==1)
+	      printk("Initializing Lasi PS/2-%s port at 0x%p...\n", name, hpa);
+#endif
+	   else
+	      printk("Support for Lasi PS/2-%s not yet available !\n", name); /* FIXME */
 	    
 	if (id==0) {
 		int err;
 		unsigned int irq;
-
-		if ((err = lasi_ps2_reset(hpa)))
+		
+		lasikbd_hpa=hpa;
+		
+		if ((err = lasi_ps2_reset(hpa,id)))
 			printk("%s: lasi_ps2_reset() failed!\n", __FUNCTION__);
 
 		irq = busdevice_alloc_irq(d);
@@ -270,11 +505,39 @@
 		    
 		request_irq(irq, lasikbd_interrupt, 0, name, hpa);
 
-		request_mem_region((unsigned long)hpa, LASI_STATUS + 4, name);
+		request_region((unsigned long)hpa, LASI_STATUS + 4, name);
 		
 		register_kbd_ops(&gsc_ps2_kbd_ops);
 	}
 
+#ifdef CONFIG_PSMOUSE
+	if (id==1){
+		int err;
+		unsigned int irq;
+
+		if ((err = lasi_ps2_reset(hpa,id)))
+			printk("%s: lasi_ps2_reset() failed!\n", __FUNCTION__);
+
+		irq = busdevice_alloc_irq(d);
+		if (!irq)
+		    return -ENODEV;
+		    
+		request_irq(irq, lasikbd_interrupt, 0, name, hpa);
+
+		request_region((unsigned long)hpa, LASI_STATUS + 4, name);
+		
+		misc_register(&psaux_mouse);
+		queue = (struct aux_queue *) kmalloc(sizeof(*queue), GFP_KERNEL);
+		memset(queue, 0, sizeof(*queue));
+		queue->head = queue->tail = 0;
+		init_waitqueue_head(&queue->proc_list);
+
+		aux_write_ack(AUX_ENABLE_DEV);
+		
+	}
+#endif	   
+
+
 	return 0;
 }
 
@@ -290,3 +553,9 @@
 	register_driver(lasi_psaux_drivers_for);
 	return 0;
 }
+
+
+
+
+
+
diff -Nru linuxbf/drivers/gsc/lasi.c linux/drivers/gsc/lasi.c
--- linuxbf/drivers/gsc/lasi.c	Fri May 11 02:09:10 2001
+++ linux/drivers/gsc/lasi.c	Fri May 11 02:10:57 2001
@@ -48,7 +48,8 @@
 	case 0x5000:	irq = 26; break; /* RS232 */
 	case 0x6000:	irq = 22; break; /* SCSI */
 	case 0x7000:	irq = 23; break; /* LAN */
-	case 0x8000:	irq =  5; break; /* PS/2 Keyboard and Mouse */
+	case 0x8000:	irq =  5; break; /* PS/2 Keyboard */
+	case 0x8100:	irq =  5; break; /* PS/2 Mouse */
 	case 0xA000:	irq = 11; break; /* Floppy Disk Controller */
 	default: 	irq = -1; break; /* unknown */
 	}

--------------FE55E5BB576DF120F532BB7E--





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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] framebuffer drivers, sound
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[CC'd parisc-linux list]

On Friday 11 May 2001 01:07, Bdale Garbee wrote:
> deller@gmx.de (Helge Deller) writes:
> > I had hacked up a stifb driver for my 715/64 (Artist GFX card)
>
> Any idea if that's the same video system that's in the 715/80?  

Yes.
Xavier Debacker from the ESIEE Team told me, that this driver worked on his 
715/80.

Greetings,
Helge





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From: Matthieu Delahaye <delahaym@esiee.fr>
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Andi wrote:

Hum, I tried the driver on a 712/60. Seems ok for me.
I found neither madplay nor saydate packaged. Could you
tell me the exact location (or package name) where
you found them?

About mpg123, how did you compile it? When I did it 3 months ago
I had to do some modifications on. I'll be very interested to know how
you did.
 
About saytime, let say it's logical, harmony_audio_poll isn't yet
implemented.
Upgrade of harmony is on the whishlist, and I hope I'll have time to
complete it.

Btw, what are the frequencies of you mp3?
More over, could you test .au files with `cat`?

Thank for your feedback,
Matthieu
> 
> hi,
> 
> my machine is an hp 712/60 with 128MB RAM and 2MB Video RAM
> 
> Programs I tested were:
> 
> madplay (from debian package) with any mp3 - strange sound and pauses as I
> described
> mpg123 (self compliled) with any mp3            - same problem
> saydate - same problem
> saytime -  "harmony_audio_poll : Invalid Poll" printed multiple times on the
> console, no sound output at all
> 
> > Hi andi,
> > Thank you for giving feedbacks about harmony, even bad.
> > Could you please tell me what is your computer model,
> > type of player and type of sound file you use.
> > If you have a 715/old, never mind, it doesn't work.
> > If not, i'll tried to find what happend...
> >
> > regards,
> > Matthieu
> >
> > --
> > Matthieu Delahaye
> > ESIEE Team
> > http://mkhppa1.esiee.fr/

-- 
Matthieu Delahaye
ESIEE Team
http://mkhppa1.esiee.fr/




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From: Matthieu Delahaye <delahaym@esiee.fr>
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Subject: Re: [parisc-linux] Serial PDC console on 712/601
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I have to recognize I have absolutely no idea. 

Regards,
Matthieu



Christoph Plattner wrote:
> 
> Very intersting the method of using the ISL commands to switch
> over. And I think I also can switch back using this method.
> Is this correct ?
> 
> But what is this "dagger" card.
> Where does the machine store the information ?
> Flash/EEPROM/battery backuped SRAM ?
> Can I do a "backup" copy (I have an universial chip programmer
> at home, and other tools !) ?
> Can I make such a "dagger" card (whatever it is ?
> 
> Please give me some hints, before I "risk" the change !
> 
> With friendly regards
>         Christoph Plattner
> 
> ------------------------------------------------------------------
> private:  christoph.plattner@gmx.at
> company:  christoph.plattner@alcatel.at
> 
> Matthieu Delahaye wrote:
> >
> > Christoph Plattner wrote:
> > >
> > > Hello HP hackers !
> > >
> > > I have a problem setting the PDC console path to serial.
> > > How can be done this on the HP 712/60.
> > > On my 9000/720 I can use the `path' command on the PDC
> > > console (admin mode). But on the 712/60, the `path' command
> > > only sets the boot paths (primary, secondary), but not the
> > > console.
> > >
> > > Is it possible to use the 712/60 with serial console only
> > > (no display and keyboard) ?
> > > How can I set serial console ?
> > >
> > > With friendly regards
> > >         Christoph Plattner
> > >
> > > --
> > > -------------------------------------------------------------------------
> > > private:        christoph.plattner@gmx.at
> > > company:        christoph.plattner@alcatel.at
> > >
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> >
> > >From Pa-RISC/Linux Boot Howto:
> >
> > 3.1.2.3.3. How can I change the boot console to serial on a 712?
> >
> >    Unfortunately, you can't. Although 712s are configured for in-house
> > HP development to use serial console, this configuration
> >    isn't supported in the field. You have to use a graphics console for
> > 712s.
> >
> > http://www.oswg.org/oswg-nightly/oswg/en_US.ISO_8859-1/articles/
> > parisc-linux/parisc-linux-boot/
> >
> > But it seems you can, after dangerous manipulations:
> >
> > http://lists.parisc-linux.org/pipermail/parisc-linux/1999-December/008117.html
> >
> > regards,
> > Matthieu
> >
> > --
> > Matthieu Delahaye
> > ESIEE Team
> > http://mkhppa1.esiee.fr/
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 
> ------------------------------------------------------------------
> private:  christoph.plattner@gmx.at
> company:  christoph.plattner@alcatel.at
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
Matthieu Delahaye
ESIEE Team
http://mkhppa1.esiee.fr/




From - Thu Nov 08 21:17:36 2018
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From: Christoph Plattner <christoph.plattner@alcatel.at>
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Subject: Re: [parisc-linux] Serial PDC console on 712/601
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Ok,

all in all really thank you for the information.

With friendly regards
	Christoph P.

Matthieu Delahaye wrote:
> 
> I have to recognize I have absolutely no idea.
> 
> Regards,
> Matthieu
> 
> Christoph Plattner wrote:
> >
> > Very intersting the method of using the ISL commands to switch
> > over. And I think I also can switch back using this method.
> > Is this correct ?
> >
> > But what is this "dagger" card.
> > Where does the machine store the information ?
> > Flash/EEPROM/battery backuped SRAM ?
> > Can I do a "backup" copy (I have an universial chip programmer
> > at home, and other tools !) ?
> > Can I make such a "dagger" card (whatever it is ?
> >
> > Please give me some hints, before I "risk" the change !
> >
> > With friendly regards
> >         Christoph Plattner
> >
> > ------------------------------------------------------------------
> > private:  christoph.plattner@gmx.at
> > company:  christoph.plattner@alcatel.at
> >
> > Matthieu Delahaye wrote:
> > >
> > > Christoph Plattner wrote:
> > > >
> > > > Hello HP hackers !
> > > >
> > > > I have a problem setting the PDC console path to serial.
> > > > How can be done this on the HP 712/60.
> > > > On my 9000/720 I can use the `path' command on the PDC
> > > > console (admin mode). But on the 712/60, the `path' command
> > > > only sets the boot paths (primary, secondary), but not the
> > > > console.
> > > >
> > > > Is it possible to use the 712/60 with serial console only
> > > > (no display and keyboard) ?
> > > > How can I set serial console ?
> > > >
> > > > With friendly regards
> > > >         Christoph Plattner
> > > >
> > > > --
> > > > -------------------------------------------------------------------------
> > > > private:        christoph.plattner@gmx.at
> > > > company:        christoph.plattner@alcatel.at
> > > >
> > > > _______________________________________________
> > > > parisc-linux mailing list
> > > > parisc-linux@lists.parisc-linux.org
> > > > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> > >
> > > >From Pa-RISC/Linux Boot Howto:
> > >
> > > 3.1.2.3.3. How can I change the boot console to serial on a 712?
> > >
> > >    Unfortunately, you can't. Although 712s are configured for in-house
> > > HP development to use serial console, this configuration
> > >    isn't supported in the field. You have to use a graphics console for
> > > 712s.
> > >
> > > http://www.oswg.org/oswg-nightly/oswg/en_US.ISO_8859-1/articles/
> > > parisc-linux/parisc-linux-boot/
> > >
> > > But it seems you can, after dangerous manipulations:
> > >
> > > http://lists.parisc-linux.org/pipermail/parisc-linux/1999-December/008117.html
> > >
> > > regards,
> > > Matthieu
> > >
> > > --
> > > Matthieu Delahaye
> > > ESIEE Team
> > > http://mkhppa1.esiee.fr/
> > >
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> >
> > ------------------------------------------------------------------
> > private:  christoph.plattner@gmx.at
> > company:  christoph.plattner@alcatel.at
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 
> --
> Matthieu Delahaye
> ESIEE Team
> http://mkhppa1.esiee.fr/
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
  +--------V--------+	Christoph.Plattner@alcatel.at
  |  A L C A T E L  |	-----------------------------
  +-----------------+	Phone: +43 1 27722 3706	
         T A S		Fax:   +43 1 27722 3955




From - Thu Nov 08 21:17:36 2018
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From: Jes Sorensen <jes@sunsite.dk>
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>>>>> "Matthew" == Matthew Wilcox <willy@ldl.fc.hp.com> writes:

Matthew>  * Change binutils to produce binaries without ELFOSABI_LINUX
Matthew> set.  This implies rebuilding every debian package we've
Matthew> built so far -- over 1100 source packages.  This means we'd
Matthew> miss our deadline of shipping at the end of May.

Matthew> One subversive developer suggested a third alternative --
Matthew> that we think up & implement an extension to the ABI so we
Matthew> have to use ELFOSABI_LINUX :-)

The easy solution is to change binutils, keep the double check for
ELFOSABI_LINUX and ELFOSABI_SYSV in the hppa glibc for a while and
nuke it when everybody has updated. The important bit is to not put a
toolchain out there that produces the wrong binaries.

I've used similar tricks on the ia64 in the past.

Jes




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as some of you know, i'm busy up here in canada building packages.
it seems to me that i'm getting a lot more unaligned data references from
things that I build than I was last week.  Also I'm getting unaligned
data references from glibc 2.2.3 that i'm building on gsyprf11 which i
never had on jagu.  I did an apt-get update on gsyprf11 and I remember
binutils getting updated, so I'm tempted to blame that.  can anyone else
confirm/deny problems?

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:17:36 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] broken toolchain?
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> as some of you know, i'm busy up here in canada building packages.
> it seems to me that i'm getting a lot more unaligned data references from
> things that I build than I was last week.  Also I'm getting unaligned
> data references from glibc 2.2.3 that i'm building on gsyprf11 which i
> never had on jagu.  I did an apt-get update on gsyprf11 and I remember
> binutils getting updated, so I'm tempted to blame that.  can anyone else
> confirm/deny problems?

There still issues re the management of the PIC register.  These might
cause the unaligned data accesses that you are seeing.  I know the
mainline gcc was broken by a patch that Alan Modra added to add
dwarf2 profiling support.  On the branch, things are better but I just
discovered a new issue involving inline functions.  Don't know where
things stand with the parisc-linux gcc source.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] broken toolchain?
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On Sat, May 12, 2001 at 09:23:47PM -0400, John David Anglin wrote:
> There still issues re the management of the PIC register.  These might
> cause the unaligned data accesses that you are seeing.  I know the
> mainline gcc was broken by a patch that Alan Modra added to add
> dwarf2 profiling support.  On the branch, things are better but I just
> discovered a new issue involving inline functions.  Don't know where
> things stand with the parisc-linux gcc source.

I don't think tat's the case.  Here's a dump:

!!die_if_kernel: ssh-keygen(6160): Unaligned data reference 28                  
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00000000000001001111111100001111                                           
r0-3     00000000 00030ed0 0001cd47 00000003                                    
r4-7     00000000 00000020 000000f6 bff04988                                    
r8-11    00000003 000312ea 0008e010 0008cef0                                    
r12-15   00000000 00000000 0008f350 00000000                                    
r16-19   00000000 00038f00 00000004 0001f800                                    
r20-23   00000005 40242090 000312ea 00000020                                    
r24-27   00000020 bff04988 00000003 00030ed0                                    
r28-31   00000003 00000037 bff04ac0 0001cd47                                    
sr0-3    00000000 00000185 00000000 00000185                                    
sr4-7    00000185 00000185 00000185 00000185                                    
                                                                                
IASQ: 00000185 00000185 IAOQ: 000127ab 000127af                                 
 IIR: 4835082e    ISR: 00000185  IOR: 000312e7                                  
ORIG_R28: bff00000                                                              

now r19 is 1f800 so it doesn't seem unaligned to me.  r22 or r9 look
like the problem children here.  i'll have to disassemble the source to
find out and I'm just going out so that'll have to wait till tomorrow.

-- 
Revolutions do not require corporate support.




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From: "Douglas T. Crosher" <dtc@scieneer.com>
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Subject: [parisc-linux] J2240?
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Xref: news.gmane.org gmane.linux.ports.parisc:11039

Even though the J2240 is not reported to be working yet on the
Web pages, it does seem to boot some way. Would anyone have
had any success with this machine, or have workarounds
to the problems below, or know the work that needs to be
done to get this running? Perhaps the following are a clue:

...
dino_bridge_init: IO_ADDR_EN hasn't been configured.
kernel BUG at dino.c:795!
...
IRQ not found for serial device at 0xfffffffffc003000
...

Regards
Douglas Crosher

-=-=-

HARD Booted.
palo ipl <> Sun May 13 11:53:13 EST 2001
0/vmlinux 3466302 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100 con
sole=ttyS0'
Kernel: partition 0 file /vmlinux
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 2022944 mediaptr 0x1000
Segment 1 load 002ee000 size 749584 mediaptr 0x1ef000
Segment 2 load 003a8000 size 16384 mediaptr 0x2a7000
branching to kernel entry point 0x00100000
Set default PSW W bit to 1
PDC Console Initialized
Linux version 2.4.0 (<>) (gcc version 3.0 20010427 (prerele
ase)) #7 Sun May 13 15:10:06 EST 2001
FP[0] enabled: Rev 0 Model 14
The 64-bit Kernel has started...
Kernel is using PDC in 32-bit mode.
Determining PDC firmware type: Newer Box
setup_cmdline(0x64cc4,0x64cc4,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100 console=t
tyS0'
PALO initrd 0-0
model   00005b50 00000491 00000000 00000002 77c5684a 100000f0 00000008 000000b2 
000000b2
vers    00000501
cpuid   000001d7
CPUID   vers 14 rev 23
model   9000/782/J2240
Total Memory: 96 Mb
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 24576
zone(0): 24576 pages.
zone(1): 0 pages.
zone(2): 0 pages.
led_init: chassis info: model=0 (LCD), lcd_width=16, cmd_delay=40, actcnt=137438
953504, maxcnt=0
Searching for devices...
Found devices:
1. SummitHawk Dino RS-232 (10) at 0xfffffffffc003000, versions 0x5d, 0x0, 0x8c, 
0x0, 0x0
2. SummitHawk Dino RS-232 (10) at 0xfffffffff1607000, versions 0x5d, 0x0, 0x8c, 
0x0, 0x0
3. SummitHawk 230 Core BA (11) at 0xffffffffffd00000, versions 0x5c, 0x0, 0x81, 
0x0, 0x0,  additional addresses: 0xffffffffffd0c000 0xffffffffffc00000 
4. SummitHawk 230 Core SCSI (10) at 0xffffffffffd06000, versions 0x5c, 0x0, 0x82
, 0x0, 0x0
5. SummitHawk 230 Core Centronics (10) at 0xffffffffffd02000, versions 0x5c, 0x0
, 0x74, 0x0, 0x0,  additional addresses: 0xffffffffffd01000 0xffffffffffd03000 
6. SummitHawk 230 Core Audio (10) at 0xffffffffffd04000, versions 0x5c, 0x4, 0x7
b, 0x0, 0x0
7. SummitHawk 230 Core PC Keyboard (10) at 0xffffffffffd08000, versions 0x5c, 0x
0, 0x84, 0x0, 0x0
8. SummitHawk 230 Core PC Keyboard (10) at 0xffffffffffd08100, versions 0x5c, 0x
0, 0x84, 0x0, 0x0
9. U2-IOA BC GSC+ Port (7) at 0xfffffffffc03f000, versions 0x501, 0x1, 0xc, 0x3,
 0x0
10. U2-IOA BC GSC+ Port (7) at 0xfffffffff163f000, versions 0x501, 0x1, 0xc, 0x3
, 0x0
11. Cujo PCI Bridge (13) at 0xfffffffff1604000, versions 0x682, 0x1, 0xa, 0x1, 0
x0
12. Dino PCI Bridge (13) at 0xfffffffffc004000, versions 0x680, 0x3, 0xa, 0x0, 0
x0,  additional addresses: 0xfffffffffc800000 
13. Unknown device (13) at 0xfffffffffc000000, versions 0x5d, 0x3, 0xa, 0x0, 0x0
14. U2-IOA BC Runway Port (12) at 0xfffffffffff88000, versions 0x580, 0xf, 0xb, 
0x1, 0x50
15. U2-IOA BC Runway Port (12) at 0xfffffffffff8a000, versions 0x580, 0xf, 0xb, 
0x1, 0x50
16. SummitHawk U+ (0) at 0xfffffffffffa0000, versions 0x5b5, 0x0, 0x4, 0x0, 0x91
17. SummitHawk U+ (0) at 0xfffffffffffa2000, versions 0x5b5, 0x0, 0x4, 0x0, 0x91
18. SummitHawk Memory (1) at 0xfffffffffffb1000, versions 0x83, 0x0, 0x9, 0x0, 0
x0
That's a total of 18 devices.
CONFIG_SMP=n  ignoring additional CPUs
Warning : device (0, 0x5b5, 0x0, 0x4, 0x0) NOT claimed by CPU PARISC
CPU(s): 1 x PA8200 (PCX-U+) at 236.000000 MHz
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100 console=
ttyS0
Calibrating delay loop... 470.22 BogoMIPS
Memory: 91924k available
Dentry-cache hash table entries: 16384 (order: 6, 262144 bytes)
Buffer-cache hash table entries: 4096 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode-cache hash table entries: 8192 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffffffffffd00000 found.
LED display at ffffffffffd0c000 registered
Initializing Lasi PS/2-keyboard port at 0xffffffffffd08000...
Support for Lasi PS/2-psaux not yet available !
Dino version 3.1 (bridge mode) found at 0xfffffffffc004000
Dino version J2240 (bridge mode) found at 0xfffffffffc000000
dino_bridge_init: IO_ADDR_EN hasn't been configured.
kernel BUG at dino.c:795!
ccio found U2 I/O MMU at 0xfffffffffff88000
io_io_high: 0xfff80000 io_io_low: 0xf4000000
ccio found U2 I/O MMU at 0xfffffffffff8a000
io_io_high: 0xf4000000 io_io_low: 0xf1600000
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI ena
bled
busdevice_alloc_irq(0x00000000103ae348): No known LASI/ASP/WAX owns device at 0x
fffffffffc003000 !
IRQ not found for serial device at 0xfffffffffc003000
Warning : device (10, 0x5d, 0x0, 0x8c, 0x0) NOT claimed by serial device 715/new
 or similiar
busdevice_alloc_irq(0x00000000103ae3d0): No known LASI/ASP/WAX owns device at 0x
fffffffff1607000 !
IRQ not found for serial device at 0xfffffffff1607000
Warning : device (10, 0x5d, 0x0, 0x8c, 0x0) NOT claimed by serial device 715/new
 or similiar

Dumping Stack from 0000000010048000 to 0000000010049280:
8000 00000000 00000000 00000000 00000040 00000000 00000000 00000000 10308a40
...
9260 00000000 000000f8 00000000 00000058 00000000 10105764 00000000 102e2e35

Kernel Fault: Code=26 regs=0000000010048f40 (Addr=0000000000000008)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001100000000000001110
r0-3     0000000000000000 00000000103b2600 000000001011023c 000000001034b7f0
r4-7     000000000000ffff 000000000000002f 0000000000000000 000000001034b7f0
r8-11    000000000800000f ffffffffffffffff 000000001031e3b8 00000000103cf988
r12-15   00000000103cf988 00000000103cf988 00000000103cf988 00000000103cf988
r16-19   000000001031e388 00000000103cf988 00000000103cf988 000000000000ffff
r20-23   0000000010326a00 0000000010334090 0000000000000000 0000000000000000
r24-27   000000000000002f 000000000000ffff 0000000000000000 000000001034b7f0
r28-31   0000000000002580 0000000010048e30 0000000010049280 0000000010319d78
sr0-3    0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr4-7    0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000102403d4 00000000102403d8
 IIR: 0cd010d9    ISR: 0000000000000000  IOR: 0000000000000008
ORIG_R28: 0000000000000004




From - Thu Nov 08 21:17:36 2018
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From: Alan Modra <alan@SPRI.Levels.UniSA.Edu.Au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] broken toolchain?
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On Sat, 12 May 2001, John David Anglin wrote:

> There still issues re the management of the PIC register.  These might
> cause the unaligned data accesses that you are seeing.  I know the
> mainline gcc was broken by a patch that Alan Modra added to add
> dwarf2 profiling support.  On the branch, things are better but I just
> discovered a new issue involving inline functions.  Don't know where
> things stand with the parisc-linux gcc source.

hppa-linux uses dwarf2 unwind for exceptions.  Since the particular
breakage you mention only affects setjmp/longjmp exception handling, it
shouldn't be a problem unless people specify -fsjlj-exceptions.

Something like the following as yet untested patch should fix the problem.

gcc/ChangeLog.puffin
	* config/pa/pa.c (hppa_init_pic_save): Revert back to saving pic
	register after last_parm_insn.
	(hppa_inline_pic_init): New function.
	* config/pa/pa.h (INLINE_PIC_INIT): Define.
	(hppa_inline_pic_init): Declare.
	* integrate.c (expand_inline_function): Call INLINE_PIC_INIT.

-- 
Alan

Index: gcc/integrate.c
===================================================================
RCS file: /home/cvs/parisc/gcc/gcc/integrate.c,v
retrieving revision 1.6
diff -u -p -r1.6 integrate.c
--- integrate.c	2001/04/16 06:33:11	1.6
+++ integrate.c	2001/05/13 12:56:36
@@ -827,7 +827,12 @@ expand_inline_function (fndecl, parms, t
   /* If the inline function needs to make PIC references, that means
      that this function's PIC offset table must be used.  */
   if (inl_f->uses_pic_offset_table)
-    current_function_uses_pic_offset_table = 1;
+    {
+      current_function_uses_pic_offset_table = 1;
+#ifdef INLINE_PIC_INIT
+      INLINE_PIC_INIT (inl_f);
+#endif
+    }

   /* If this function needs a context, set it up.  */
   if (inl_f->needs_context)
Index: gcc/config/pa/pa.c
===================================================================
RCS file: /home/cvs/parisc/gcc/gcc/config/pa/pa.c,v
retrieving revision 1.21
diff -u -p -r1.21 pa.c
--- pa.c	2001/04/17 00:45:01	1.21
+++ pa.c	2001/05/13 12:57:07
@@ -3436,12 +3435,27 @@ hppa_init_pic_save ()
   RTX_UNCHANGING_P (PIC_OFFSET_TABLE_SAVE_RTX) = 1;
   insn = gen_rtx_SET (VOIDmode, PIC_OFFSET_TABLE_SAVE_RTX, picreg);

-  /* Emit the insn at the beginning of the function after the prologue.  */
-  if (tail_recursion_reentry)
-    emit_insn_before (insn, tail_recursion_reentry);
-  else
-    /* We must have been called via PROFILE_HOOK.  */
-    emit_insn (insn);
+  /* Emit the insn at the beginning of the function after the prologue.
+     The setjmp/longjmp exception handling code emits a call
+     immediately after last_parm_insn, and we need the pic save
+     register valid before the call.  That's why this insn must be
+     part of the parm insns.  */
+  push_topmost_sequence ();
+  last_parm_insn =
+    emit_insn_after (insn, last_parm_insn ? last_parm_insn : get_insns ());
+  pop_topmost_sequence ();
+}
+
+/* Unfortunately, parm insns are not copied for inline functions, so
+   we need to copy the initialization here.  */
+void
+hppa_inline_pic_init (inl_f)
+     struct function *inl_f;
+{
+  if (inl_f->machine->pic_offset_table_save_rtx)
+    emit_insn (gen_rtx_SET (VOIDmode,
+			    inl_f->machine->pic_offset_table_save_rtx,
+			    gen_rtx_REG (word_mode, PIC_OFFSET_TABLE_REGNUM)));
 }

 void
Index: gcc/config/pa/pa.h
===================================================================
RCS file: /home/cvs/parisc/gcc/gcc/config/pa/pa.h,v
retrieving revision 1.13
diff -u -p -r1.13 pa.h
--- pa.h	2001/05/01 12:40:14	1.13
+++ pa.h	2001/05/13 12:57:20
@@ -522,6 +522,12 @@ extern int target_flags;
 #define PIC_OFFSET_TABLE_SAVE_RTX (cfun->machine->pic_offset_table_save_rtx)
 extern void hppa_init_pic_save PARAMS ((void));

+/* Handle any special initialization needed for inline functions that
+   make PIC references.  */
+#define INLINE_PIC_INIT hppa_inline_pic_init
+struct function;
+extern void hppa_inline_pic_init PARAMS ((struct function *));
+
 #define DEFAULT_PCC_STRUCT_RETURN 0

 /* SOM ABI says that objects larger than 64 bits are returned in memory.





From - Thu Nov 08 21:17:36 2018
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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
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Subject: Re: [parisc-linux] J2240?
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Xref: news.gmane.org gmane.linux.ports.parisc:11041

Hello Douglas,

I have to fess up on this one, since this machine uses both the
ccio-dma driver and the 32-bit pdc translator :)  I hve been testing
on a C200 that uses the ccio-dma driver and the 32-bit translator
also ... but I have not been able to boot the machine with a 64-bit
kernel yet.  I think it is a problem with the ccio-dma driver, but
I have been unable to find the error yet. 

Booting the machine with a 32-bit kernel should work fine ... if it
does not, post the output to the list again we can try to help debug
the 32-bit case first.  After you boot it witht he 32-bit kernel,
you can happily enjoy the 32-bit kernel ... or you can help me find 
the 64-bit bugs :)

Thanks, and have a good day!

- Ryan

 
On Sun, May 13, 2001 at 03:45:47PM +1000, Douglas T. Crosher wrote:
> 
> Even though the J2240 is not reported to be working yet on the
> Web pages, it does seem to boot some way. Would anyone have
> had any success with this machine, or have workarounds
> to the problems below, or know the work that needs to be
> done to get this running? Perhaps the following are a clue:
> 
> ...
> dino_bridge_init: IO_ADDR_EN hasn't been configured.
> kernel BUG at dino.c:795!
> ...
> IRQ not found for serial device at 0xfffffffffc003000
> ...
> 
> Regards
> Douglas Crosher
> 
> -=-=-
> 
> HARD Booted.
> palo ipl <> Sun May 13 11:53:13 EST 2001
> 0/vmlinux 3466302 bytes @ 0x6800
> 0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100 con
> sole=ttyS0'
> Kernel: partition 0 file /vmlinux
> ELF64 executable
> Entry 00100000 first 00100000 n 3
> Segment 0 load 00100000 size 2022944 mediaptr 0x1000
> Segment 1 load 002ee000 size 749584 mediaptr 0x1ef000
> Segment 2 load 003a8000 size 16384 mediaptr 0x2a7000
> branching to kernel entry point 0x00100000
> Set default PSW W bit to 1
> PDC Console Initialized
> Linux version 2.4.0 (<>) (gcc version 3.0 20010427 (prerele
> ase)) #7 Sun May 13 15:10:06 EST 2001
> FP[0] enabled: Rev 0 Model 14
> The 64-bit Kernel has started...
> Kernel is using PDC in 32-bit mode.
> Determining PDC firmware type: Newer Box
> setup_cmdline(0x64cc4,0x64cc4,0x0,0x0)
> PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100 console=t
> tyS0'
> PALO initrd 0-0
> model   00005b50 00000491 00000000 00000002 77c5684a 100000f0 00000008 000000b2 
> 000000b2
> vers    00000501
> cpuid   000001d7
> CPUID   vers 14 rev 23
> model   9000/782/J2240
> Total Memory: 96 Mb
> initrd: 00000000-00000000
> pagetable_init
> On node 0 totalpages: 24576
> zone(0): 24576 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> led_init: chassis info: model=0 (LCD), lcd_width=16, cmd_delay=40, actcnt=137438
> 953504, maxcnt=0
> Searching for devices...
> Found devices:
> 1. SummitHawk Dino RS-232 (10) at 0xfffffffffc003000, versions 0x5d, 0x0, 0x8c, 
> 0x0, 0x0
> 2. SummitHawk Dino RS-232 (10) at 0xfffffffff1607000, versions 0x5d, 0x0, 0x8c, 
> 0x0, 0x0
> 3. SummitHawk 230 Core BA (11) at 0xffffffffffd00000, versions 0x5c, 0x0, 0x81, 
> 0x0, 0x0,  additional addresses: 0xffffffffffd0c000 0xffffffffffc00000 
> 4. SummitHawk 230 Core SCSI (10) at 0xffffffffffd06000, versions 0x5c, 0x0, 0x82
> , 0x0, 0x0
> 5. SummitHawk 230 Core Centronics (10) at 0xffffffffffd02000, versions 0x5c, 0x0
> , 0x74, 0x0, 0x0,  additional addresses: 0xffffffffffd01000 0xffffffffffd03000 
> 6. SummitHawk 230 Core Audio (10) at 0xffffffffffd04000, versions 0x5c, 0x4, 0x7
> b, 0x0, 0x0
> 7. SummitHawk 230 Core PC Keyboard (10) at 0xffffffffffd08000, versions 0x5c, 0x
> 0, 0x84, 0x0, 0x0
> 8. SummitHawk 230 Core PC Keyboard (10) at 0xffffffffffd08100, versions 0x5c, 0x
> 0, 0x84, 0x0, 0x0
> 9. U2-IOA BC GSC+ Port (7) at 0xfffffffffc03f000, versions 0x501, 0x1, 0xc, 0x3,
>  0x0
> 10. U2-IOA BC GSC+ Port (7) at 0xfffffffff163f000, versions 0x501, 0x1, 0xc, 0x3
> , 0x0
> 11. Cujo PCI Bridge (13) at 0xfffffffff1604000, versions 0x682, 0x1, 0xa, 0x1, 0
> x0
> 12. Dino PCI Bridge (13) at 0xfffffffffc004000, versions 0x680, 0x3, 0xa, 0x0, 0
> x0,  additional addresses: 0xfffffffffc800000 
> 13. Unknown device (13) at 0xfffffffffc000000, versions 0x5d, 0x3, 0xa, 0x0, 0x0
> 14. U2-IOA BC Runway Port (12) at 0xfffffffffff88000, versions 0x580, 0xf, 0xb, 
> 0x1, 0x50
> 15. U2-IOA BC Runway Port (12) at 0xfffffffffff8a000, versions 0x580, 0xf, 0xb, 
> 0x1, 0x50
> 16. SummitHawk U+ (0) at 0xfffffffffffa0000, versions 0x5b5, 0x0, 0x4, 0x0, 0x91
> 17. SummitHawk U+ (0) at 0xfffffffffffa2000, versions 0x5b5, 0x0, 0x4, 0x0, 0x91
> 18. SummitHawk Memory (1) at 0xfffffffffffb1000, versions 0x83, 0x0, 0x9, 0x0, 0
> x0
> That's a total of 18 devices.
> CONFIG_SMP=n  ignoring additional CPUs
> Warning : device (0, 0x5b5, 0x0, 0x4, 0x0) NOT claimed by CPU PARISC
> CPU(s): 1 x PA8200 (PCX-U+) at 236.000000 MHz
> Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100 console=
> ttyS0
> Calibrating delay loop... 470.22 BogoMIPS
> Memory: 91924k available
> Dentry-cache hash table entries: 16384 (order: 6, 262144 bytes)
> Buffer-cache hash table entries: 4096 (order: 3, 32768 bytes)
> Page-cache hash table entries: 32768 (order: 6, 262144 bytes)
> Inode-cache hash table entries: 8192 (order: 5, 131072 bytes)
> POSIX conformance testing by UNIFIX
> Lasi version 0 at 0xffffffffffd00000 found.
> LED display at ffffffffffd0c000 registered
> Initializing Lasi PS/2-keyboard port at 0xffffffffffd08000...
> Support for Lasi PS/2-psaux not yet available !
> Dino version 3.1 (bridge mode) found at 0xfffffffffc004000
> Dino version J2240 (bridge mode) found at 0xfffffffffc000000
> dino_bridge_init: IO_ADDR_EN hasn't been configured.
> kernel BUG at dino.c:795!
> ccio found U2 I/O MMU at 0xfffffffffff88000
> io_io_high: 0xfff80000 io_io_low: 0xf4000000
> ccio found U2 I/O MMU at 0xfffffffffff8a000
> io_io_high: 0xf4000000 io_io_low: 0xf1600000
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Starting kswapd v1.8
> pty: 256 Unix98 ptys configured
> lp: driver loaded but no devices found
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI ena
> bled
> busdevice_alloc_irq(0x00000000103ae348): No known LASI/ASP/WAX owns device at 0x
> fffffffffc003000 !
> IRQ not found for serial device at 0xfffffffffc003000
> Warning : device (10, 0x5d, 0x0, 0x8c, 0x0) NOT claimed by serial device 715/new
>  or similiar
> busdevice_alloc_irq(0x00000000103ae3d0): No known LASI/ASP/WAX owns device at 0x
> fffffffff1607000 !
> IRQ not found for serial device at 0xfffffffff1607000
> Warning : device (10, 0x5d, 0x0, 0x8c, 0x0) NOT claimed by serial device 715/new
>  or similiar
> 
> Dumping Stack from 0000000010048000 to 0000000010049280:
> 8000 00000000 00000000 00000000 00000040 00000000 00000000 00000000 10308a40
> ...
> 9260 00000000 000000f8 00000000 00000058 00000000 10105764 00000000 102e2e35
> 
> Kernel Fault: Code=26 regs=0000000010048f40 (Addr=0000000000000008)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001100000000000001110
> r0-3     0000000000000000 00000000103b2600 000000001011023c 000000001034b7f0
> r4-7     000000000000ffff 000000000000002f 0000000000000000 000000001034b7f0
> r8-11    000000000800000f ffffffffffffffff 000000001031e3b8 00000000103cf988
> r12-15   00000000103cf988 00000000103cf988 00000000103cf988 00000000103cf988
> r16-19   000000001031e388 00000000103cf988 00000000103cf988 000000000000ffff
> r20-23   0000000010326a00 0000000010334090 0000000000000000 0000000000000000
> r24-27   000000000000002f 000000000000ffff 0000000000000000 000000001034b7f0
> r28-31   0000000000002580 0000000010048e30 0000000010049280 0000000010319d78
> sr0-3    0000000000000000 0000000000000000 0000000000000000 0000000000000000
> sr4-7    0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000102403d4 00000000102403d8
>  IIR: 0cd010d9    ISR: 0000000000000000  IOR: 0000000000000008
> ORIG_R28: 0000000000000004
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 

-- 




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From: "Douglas T. Crosher" <dtc@scieneer.com>
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Subject: Re: [parisc-linux] J2240?
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Xref: news.gmane.org gmane.linux.ports.parisc:11042

Ryan Bradetich wrote:
...
> I have to fess up on this one, since this machine uses both the
> ccio-dma driver and the 32-bit pdc translator :)  I hve been testing
> on a C200 that uses the ccio-dma driver and the 32-bit translator
> also ... but I have not been able to boot the machine with a 64-bit
> kernel yet.  I think it is a problem with the ccio-dma driver, but
> I have been unable to find the error yet.
> 
> Booting the machine with a 32-bit kernel should work fine ... if it
> does not, post the output to the list again we can try to help debug

Below is the output for the 32 bit kernel which proceeds in
a similar manner to the 64 bit kernel and has the same problems.

Regards
Douglas Crosher

-=-=-

HARD Booted.
palo ipl <> Sun May 13 11:53:13 EST 2001
0/vmlinux 2614364 bytes @ 0x6800
0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100
console=ttyS0'
Kernel: partition 0 file /vmlinux
ELF32 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 1516512 mediaptr 0x1000
Segment 1 load 00274000 size 181808 mediaptr 0x174000
Segment 2 load 002a4000 size 219576 mediaptr 0x1a1000
Segment 3 load 002dc000 size 8192 mediaptr 0x1d7000
Segment 4 load 0030a068 size 75520 mediaptr 0x1d9068
branching to kernel entry point 0x00100000
Set default PSW W bit to 0
PDC Console Initialized
Linux version 2.4.0 () (gcc version 3.0 20010427 (prerelease)) #8 Mon May 14
05:02:36 EST 2001
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: Newer Box
setup_cmdline(0x64cc4,0x64cc4,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100
console=ttyS0'
PALO initrd 0-0
model   00005b50 00000491 00000000 00000002 77c5684a 100000f0 00000008 000000b2
000000b2
vers    00000501
cpuid   000001d7
CPUID   vers 14 rev 23
model   9000/782/J2240
Total Memory: 96 Mb
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 24576
zone(0): 24576 pages.
zone(1): 0 pages.
zone(2): 0 pages.
led_init: chassis info: model=0 (LCD), lcd_width=16, cmd_delay=40, actcnt=32,
maxcnt=32
led_init: min_cmd_delay = 40 uS
LCD display at f0190000,f0190001 registered
Searching for devices...
Found devices:
1. SummitHawk Dino RS-232 (10) at 0xfc003000, versions 0x5d, 0x0, 0x8c, 0x0, 0x0
2. SummitHawk Dino RS-232 (10) at 0xf1607000, versions 0x5d, 0x0, 0x8c, 0x0, 0x0
3. SummitHawk 230 Core BA (11) at 0xffd00000, versions 0x5c, 0x0, 0x81, 0x0,
0x0,  additional addresses: 0xffd0c000 0xffc00000 
4. SummitHawk 230 Core SCSI (10) at 0xffd06000, versions 0x5c, 0x0, 0x82, 0x0,
0x0
5. SummitHawk 230 Core Centronics (10) at 0xffd02000, versions 0x5c, 0x0, 0x74,
0x0, 0x0,  additional addresses: 0xffd01000 0xffd03000 
6. SummitHawk 230 Core Audio (10) at 0xffd04000, versions 0x5c, 0x4, 0x7b, 0x0,
0x0
7. SummitHawk 230 Core PC Keyboard (10) at 0xffd08000, versions 0x5c, 0x0, 0x84,
0x0, 0x0
8. SummitHawk 230 Core PC Keyboard (10) at 0xffd08100, versions 0x5c, 0x0, 0x84,
0x0, 0x0
9. U2-IOA BC GSC+ Port (7) at 0xfc03f000, versions 0x501, 0x1, 0xc, 0x3, 0x0
10. U2-IOA BC GSC+ Port (7) at 0xf163f000, versions 0x501, 0x1, 0xc, 0x3, 0x0
11. Cujo PCI Bridge (13) at 0xf1604000, versions 0x682, 0x1, 0xa, 0x1, 0x0
12. Dino PCI Bridge (13) at 0xfc004000, versions 0x680, 0x3, 0xa, 0x0, 0x0, 
additional addresses: 0xfc800000 
13. Unknown device (13) at 0xfc000000, versions 0x5d, 0x3, 0xa, 0x0, 0x0
14. U2-IOA BC Runway Port (12) at 0xfff88000, versions 0x580, 0xf, 0xb, 0x1,
0x50
15. U2-IOA BC Runway Port (12) at 0xfff8a000, versions 0x580, 0xf, 0xb, 0x1,
0x50
16. SummitHawk U+ (0) at 0xfffa0000, versions 0x5b5, 0x0, 0x4, 0x0, 0x91
17. SummitHawk U+ (0) at 0xfffa2000, versions 0x5b5, 0x0, 0x4, 0x0, 0x91
18. SummitHawk Memory (1) at 0xfffb1000, versions 0x83, 0x0, 0x9, 0x0, 0x0
That's a total of 18 devices.
CONFIG_SMP=n  ignoring additional CPUs
Warning : device (0, 0x5b5, 0x0, 0x4, 0x0) NOT claimed by CPU PARISC
CPU(s): 1 x PA8200 (PCX-U+) at 236.000000 MHz
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100
console=ttyS0
Calibrating delay loop... 470.22 BogoMIPS
Memory: 94416k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xffd00000 found.
Initializing Lasi PS/2-keyboard port at 0xffd08000...
Support for Lasi PS/2-psaux not yet available !
Dino version 3.1 (bridge mode) found at 0xfc004000
Dino version J2240 (bridge mode) found at 0xfc000000
dino_bridge_init: IO_ADDR_EN hasn't been configured.
kernel BUG at dino.c:795!
ccio found U2 I/O MMU at 0xfff88000
io_io_high: 0xfff80000 io_io_low: 0xf4000000
ccio found U2 I/O MMU at 0xfff8a000
io_io_high: 0xf4000000 io_io_low: 0xf1600000
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI
enabled
busdevice_alloc_irq(0x102e0244): No known LASI/ASP/WAX owns device at 0xfc003000
!
IRQ not found for serial device at 0xfc003000
Warning : device (10, 0x5d, 0x0, 0x8c, 0x0) NOT claimed by serial device 715/new
or similiar
busdevice_alloc_irq(0x102e027c): No known LASI/ASP/WAX owns device at 0xf1607000
!
IRQ not found for serial device at 0xf1607000
Warning : device (10, 0x5d, 0x0, 0x8c, 0x0) NOT claimed by serial device 715/new
or similiar

Dumping Stack from 10034000 to 10034a80:
4000 00000000 00000040 00000000 00000000 10289440 00000001 00000000 ffffffff
...
4a60 00000000 00000000 10108c2c 10106744 11111111 00000000 3e743615 25db7828

Kernel Fault: Code=26 regs=10034840 (Addr=00000004)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001110
r0-3     00000000 102e30c0 1010cd98 10297194
r4-7     0000ffff 0000002f 00000000 0000000f
r8-11    00002000 102f8d64 0004000e 102a4674
r12-15   000000f2 000000fa f0140000 00000007
r16-19   f000173c f0000218 f0000210 ffffffff
r20-23   1029c11c 102f59e8 101f1750 ffffffff
r24-27   0000002f 0000ffff 00000000 10274010
r28-31   00000000 0000002f 10034a80 1010cd98
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101f177c 101f1780
 IIR: 0cc81099    ISR: 00000000  IOR: 00000004
ORIG_R28: 55555555




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To: Matthieu Delahaye <delahaym@esiee.fr>
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Matthieu Delahaye wrote:

> Andi wrote:
>
> Hum, I tried the driver on a 712/60. Seems ok for me.
> I found neither madplay nor saydate packaged. Could you
> tell me the exact location (or package name) where
> you found them?

they are in the official debian distribution... you can grab them from:

ftp://ftp.debian.org/debian/pool/main/m/mad/
ftp://ftp.de.debian.org/debian/pool/main/s/saydate/
ftp://ftp.de.debian.org/debian/pool/main/s/saytime/

> About mpg123, how did you compile it? When I did it 3 months ago
> I had to do some modifications on. I'll be very interested to know how
> you did.

I made no modifications to the program itself, I just tweaked the makefiles
a bit.

> Btw, what are the frequencies of you mp3?

I dont know, what frequencies does harmony support?

> More over, could you test .au files with `cat`?

I had the same problem here.








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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] J2240?
Date: Sun, 13 May 2001 14:14:05 -0600
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To: "Douglas T. Crosher" <dtc@scieneer.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11044

Douglas,

I glanced through the dino.c code and found the following comment:

/*
** If hversion is what is read from Dino, we should be OK.
** If it's what PDC told us, J2240 PDC reports the hv_model wrong
** for the first Dino.  I think it reports 0x05d.  <sigh>...
**

This comment appears to apply to the bug you are seening since this 
device shows up in your inventory. 

> 13. Unknown device (13) at 0xfc000000, versions 0x5d, 0x3, 0xa, 0x0, 0x0
> Dino version J2240 (bridge mode) found at 0xfc000000

I will take a look at it some more later today to see if I can figure
it out, but Grant Grundler probably already knows how to fix the problem :)

Thanks,

- Ryan

On Mon, May 14, 2001 at 05:33:10AM +1000, Douglas T. Crosher wrote:
> Ryan Bradetich wrote:
> ...
> > I have to fess up on this one, since this machine uses both the
> > ccio-dma driver and the 32-bit pdc translator :)  I hve been testing
> > on a C200 that uses the ccio-dma driver and the 32-bit translator
> > also ... but I have not been able to boot the machine with a 64-bit
> > kernel yet.  I think it is a problem with the ccio-dma driver, but
> > I have been unable to find the error yet.
> > 
> > Booting the machine with a 32-bit kernel should work fine ... if it
> > does not, post the output to the list again we can try to help debug
> 
> Below is the output for the 32 bit kernel which proceeds in
> a similar manner to the 64 bit kernel and has the same problems.
> 
> Regards
> Douglas Crosher
> 
> -=-=-
> 
> HARD Booted.
> palo ipl <> Sun May 13 11:53:13 EST 2001
> 0/vmlinux 2614364 bytes @ 0x6800
> 0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100
> console=ttyS0'
> Kernel: partition 0 file /vmlinux
> ELF32 executable
> Entry 00100000 first 00100000 n 5
> Segment 0 load 00100000 size 1516512 mediaptr 0x1000
> Segment 1 load 00274000 size 181808 mediaptr 0x174000
> Segment 2 load 002a4000 size 219576 mediaptr 0x1a1000
> Segment 3 load 002dc000 size 8192 mediaptr 0x1d7000
> Segment 4 load 0030a068 size 75520 mediaptr 0x1d9068
> branching to kernel entry point 0x00100000
> Set default PSW W bit to 0
> PDC Console Initialized
> Linux version 2.4.0 () (gcc version 3.0 20010427 (prerelease)) #8 Mon May 14
> 05:02:36 EST 2001
> FP[0] enabled: Rev 0 Model 14
> The 32-bit Kernel has started...
> Determining PDC firmware type: Newer Box
> setup_cmdline(0x64cc4,0x64cc4,0x0,0x0)
> PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100
> console=ttyS0'
> PALO initrd 0-0
> model   00005b50 00000491 00000000 00000002 77c5684a 100000f0 00000008 000000b2
> 000000b2
> vers    00000501
> cpuid   000001d7
> CPUID   vers 14 rev 23
> model   9000/782/J2240
> Total Memory: 96 Mb
> initrd: 00000000-00000000
> pagetable_init
> On node 0 totalpages: 24576
> zone(0): 24576 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> led_init: chassis info: model=0 (LCD), lcd_width=16, cmd_delay=40, actcnt=32,
> maxcnt=32
> led_init: min_cmd_delay = 40 uS
> LCD display at f0190000,f0190001 registered
> Searching for devices...
> Found devices:
> 1. SummitHawk Dino RS-232 (10) at 0xfc003000, versions 0x5d, 0x0, 0x8c, 0x0, 0x0
> 2. SummitHawk Dino RS-232 (10) at 0xf1607000, versions 0x5d, 0x0, 0x8c, 0x0, 0x0
> 3. SummitHawk 230 Core BA (11) at 0xffd00000, versions 0x5c, 0x0, 0x81, 0x0,
> 0x0,  additional addresses: 0xffd0c000 0xffc00000 
> 4. SummitHawk 230 Core SCSI (10) at 0xffd06000, versions 0x5c, 0x0, 0x82, 0x0,
> 0x0
> 5. SummitHawk 230 Core Centronics (10) at 0xffd02000, versions 0x5c, 0x0, 0x74,
> 0x0, 0x0,  additional addresses: 0xffd01000 0xffd03000 
> 6. SummitHawk 230 Core Audio (10) at 0xffd04000, versions 0x5c, 0x4, 0x7b, 0x0,
> 0x0
> 7. SummitHawk 230 Core PC Keyboard (10) at 0xffd08000, versions 0x5c, 0x0, 0x84,
> 0x0, 0x0
> 8. SummitHawk 230 Core PC Keyboard (10) at 0xffd08100, versions 0x5c, 0x0, 0x84,
> 0x0, 0x0
> 9. U2-IOA BC GSC+ Port (7) at 0xfc03f000, versions 0x501, 0x1, 0xc, 0x3, 0x0
> 10. U2-IOA BC GSC+ Port (7) at 0xf163f000, versions 0x501, 0x1, 0xc, 0x3, 0x0
> 11. Cujo PCI Bridge (13) at 0xf1604000, versions 0x682, 0x1, 0xa, 0x1, 0x0
> 12. Dino PCI Bridge (13) at 0xfc004000, versions 0x680, 0x3, 0xa, 0x0, 0x0, 
> additional addresses: 0xfc800000 
> 13. Unknown device (13) at 0xfc000000, versions 0x5d, 0x3, 0xa, 0x0, 0x0
> 14. U2-IOA BC Runway Port (12) at 0xfff88000, versions 0x580, 0xf, 0xb, 0x1,
> 0x50
> 15. U2-IOA BC Runway Port (12) at 0xfff8a000, versions 0x580, 0xf, 0xb, 0x1,
> 0x50
> 16. SummitHawk U+ (0) at 0xfffa0000, versions 0x5b5, 0x0, 0x4, 0x0, 0x91
> 17. SummitHawk U+ (0) at 0xfffa2000, versions 0x5b5, 0x0, 0x4, 0x0, 0x91
> 18. SummitHawk Memory (1) at 0xfffb1000, versions 0x83, 0x0, 0x9, 0x0, 0x0
> That's a total of 18 devices.
> CONFIG_SMP=n  ignoring additional CPUs
> Warning : device (0, 0x5b5, 0x0, 0x4, 0x0) NOT claimed by CPU PARISC
> CPU(s): 1 x PA8200 (PCX-U+) at 236.000000 MHz
> Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100
> console=ttyS0
> Calibrating delay loop... 470.22 BogoMIPS
> Memory: 94416k available
> Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
> Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
> Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
> POSIX conformance testing by UNIFIX
> Lasi version 0 at 0xffd00000 found.
> Initializing Lasi PS/2-keyboard port at 0xffd08000...
> Support for Lasi PS/2-psaux not yet available !
> Dino version 3.1 (bridge mode) found at 0xfc004000
> Dino version J2240 (bridge mode) found at 0xfc000000
> dino_bridge_init: IO_ADDR_EN hasn't been configured.
> kernel BUG at dino.c:795!
> ccio found U2 I/O MMU at 0xfff88000
> io_io_high: 0xfff80000 io_io_low: 0xf4000000
> ccio found U2 I/O MMU at 0xfff8a000
> io_io_high: 0xf4000000 io_io_low: 0xf1600000
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Starting kswapd v1.8
> pty: 256 Unix98 ptys configured
> lp: driver loaded but no devices found
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI
> enabled
> busdevice_alloc_irq(0x102e0244): No known LASI/ASP/WAX owns device at 0xfc003000
> !
> IRQ not found for serial device at 0xfc003000
> Warning : device (10, 0x5d, 0x0, 0x8c, 0x0) NOT claimed by serial device 715/new
> or similiar
> busdevice_alloc_irq(0x102e027c): No known LASI/ASP/WAX owns device at 0xf1607000
> !
> IRQ not found for serial device at 0xf1607000
> Warning : device (10, 0x5d, 0x0, 0x8c, 0x0) NOT claimed by serial device 715/new
> or similiar
> 
> Dumping Stack from 10034000 to 10034a80:
> 4000 00000000 00000040 00000000 00000000 10289440 00000001 00000000 ffffffff
> ...
> 4a60 00000000 00000000 10108c2c 10106744 11111111 00000000 3e743615 25db7828
> 
> Kernel Fault: Code=26 regs=10034840 (Addr=00000004)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001100000000000001110
> r0-3     00000000 102e30c0 1010cd98 10297194
> r4-7     0000ffff 0000002f 00000000 0000000f
> r8-11    00002000 102f8d64 0004000e 102a4674
> r12-15   000000f2 000000fa f0140000 00000007
> r16-19   f000173c f0000218 f0000210 ffffffff
> r20-23   1029c11c 102f59e8 101f1750 ffffffff
> r24-27   0000002f 0000ffff 00000000 10274010
> r28-31   00000000 0000002f 10034a80 1010cd98
> sr0-3    00000000 00000000 00000000 00000000
> sr4-7    00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 101f177c 101f1780
>  IIR: 0cc81099    ISR: 00000000  IOR: 00000004
> ORIG_R28: 55555555
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 

-- 




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From: Alan Modra <alan@SPRI.Levels.UniSA.Edu.Au>
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Subject: [parisc-linux] Re: C++ Issue on GCC 3.0 branch
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On Sun, 13 May 2001, John David Anglin wrote:

> > On Sun, 13 May 2001, Alan Modra wrote:
> >
> > > How about this?  Warning, not even compiled!  I'm just tossing ideas
> > > around.
> >
> > And of course, the first little test I tried showed a problem.  :-(
> > The inlined code looks OK, but that emitted for the non-inlined copy
> > doesn't init the pic reg.

This was back-to-front.  It was the inline code that was bad.

> After I wrote, I realized that I had picked the wrong register. Then I
> had second thoughts about the method.  Here is another idea that seems
> at least to do the right thing compiling libobjc/init.c.  The CSE
> results in the same hard register being used for inlined functions.
> However, if Alan can get integrate to do the right thing, that might
> be better.  It will be tomorrow before I have complete test results.

Funny, I like your approach better than mine, but I went ahead and made
the fairly obvious fix to my code to make it work.  Attached is the diff
against pehc, but I guess the whole exercise is now a little pointless
given rth's latest eh changes.

-- 
Alan


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--296515328-51119847-989810311=:12094--




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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] broken toolchain?
Date: Mon, 14 May 2001 18:45:25 +0100
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To: Matthew Wilcox <matthew@wil.cx>
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Xref: news.gmane.org gmane.linux.ports.parisc:11046

On Sun, May 13, 2001 at 02:15:22AM +0100, Matthew Wilcox wrote:
> can anyone else confirm/deny problems?

I downgraded to binutils 2.11.90.0.5-1 from 2.11.90.0.7-1 and I've stopped
getting the unaligned references.  Would someone like to volunteer to
find the bug?  And does this mean we should stop the buildd?

-- 
Revolutions do not require corporate support.




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From: Bdale Garbee <bdale@gag.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] broken toolchain?
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matthew@wil.cx (Matthew Wilcox) writes:

> And does this mean we should stop the buildd?

It has been down since my T1 routing got torched yesterday, I'll leave it
disabled until this is figured out.

Bdale




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From: Bjorn Helgaas <bjorn_helgaas@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] broken toolchain?
Date: Mon, 14 May 2001 09:18:18 -0600
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Cc: Matthew Wilcox <matthew@wil.cx>, parisc-linux@parisc-linux.org
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> IASQ: 00000185 00000185 IAOQ: 000127ab 000127af
>  IIR: 4835082e    ISR: 00000185  IOR: 000312e7
> ORIG_R28: bff00000

If you trust IIR:

$ echo 0x4835082e=i | adb
                LDW             1047(r1),r21




From - Thu Nov 08 21:17:37 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Libstdc++-porting-howto
Date: Mon, 14 May 2001 18:28:17 -0600
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With all the libstdc++-v3 porting issues we've been running into, willy 
discovered a really nice porting-howto. I'm sending it here so others know 
about it and I can't lose the URL again :)

http://gcc.gnu.org/onlinedocs/libstdc++/17_intro/porting-howto.html

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: amodra@one.net.au
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Subject: Re: [parisc-linux] broken toolchain?
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Xref: news.gmane.org gmane.linux.ports.parisc:11050

On Mon, May 14, 2001 at 06:45:25PM +0100, Matthew Wilcox wrote:
> On Sun, May 13, 2001 at 02:15:22AM +0100, Matthew Wilcox wrote:
> > can anyone else confirm/deny problems?
> 
> I downgraded to binutils 2.11.90.0.5-1 from 2.11.90.0.7-1 and I've stopped
> getting the unaligned references.

Can you translate those meaningless (to me) version numbers into the
most recent date you see in bfd/, gas/, and ld/ ChangeLogs?

-- 
Alan Modra





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On Tue, May 15, 2001 at 01:07:49PM +0930, amodra@one.net.au wrote:
> Can you translate those meaningless (to me) version numbers into the
> most recent date you see in bfd/, gas/, and ld/ ChangeLogs?

the version numbers are those supplied by HJ Lu (not meaningless debian
version numbers :-)

2.11.90.0.7 was based on 2001 0427
2.11.90.0.5 was based on 2001 0414

-- 
Revolutions do not require corporate support.




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I have had problems relating to slang.so when building boot-floppies.
I don't entirely understand what is going on, so I'm posting the
facts as I see them, so others can comment.

There are three packages, slang1, slang1-dev, slang1-pic (-pic probably
isn't relevant here).

The basic problem is that slang1 provides only libslang1.so.1 and
libslang.so.1.4.4, but various things expect libslang.so and so
wont run unless sland1-dev is installed.  slang1-dev provides
libslang.so.

Things I have found that are affected are cfdisk (in util-linux),
whiptail, and libnewt0.

As a test I installed the three slang1 packages from the debian
archive and did "gcc -o hw hw.c -lslang; ldd hw".  I get:

        libslang.so => /usr/lib/libslang.so (0x4002b000)
        libc.so.6 => /lib/libc.so.6 (0x400b0000)
        libm.so.6 => /lib/libm.so.6 (0x401f4000)
        libdl.so.2 => /lib/libdl.so.2 (0x40234000)
        /lib/ld.so.1 => /lib/ld.so.1 (0x40000000)

If I now remove slang1-dev, and try to run hw I get

./hw: error while loading shared libraries: libslang.so: cannot load shared object file: No such file or directory


If I build my own slang1 packages and install them and then remake
'hw', I get

        libslang.so.1 => /lib/libslang.so.1 (0x4002b000)
        libc.so.6 => /lib/libc.so.6 (0x400b0000)
        libm.so.6 => /lib/libm.so.6 (0x401f4000)
        libdl.so.2 => /lib/libdl.so.2 (0x40234000)
        /lib/ld.so.1 => /lib/ld.so.1 (0x40000000)

and 'hw' runs fine with slang1-dev removed, as it should.


cfdisk from the debain archive wont run unless slang1-dev is installed.
If I rebuild cfdisk myself, with the debian slang1 packages installed,
cfdisk still wants libslang.so.  If I rebuild cfdisk with my own build
slang1 packages installed, the resulting cfdisk wants libslang.so.1,
as it should.

So, it seems something is wrong with the slang1 packages in debian,
and that has resulted in bad util-linux, whiptail, and libnewt0 builds.

I don't know what might have gone wrong with the debian builds, because
when I build slang1 debs they are fine.

Can someone else try this, and, if appropriate, upload new slang*,
util-linux, whiptail, and libnewt0 packages to the archive?

Thanks,
  Richard





From - Thu Nov 08 21:17:37 2018
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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] J2240?
Date: Tue, 15 May 2001 23:15:19 -0600
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Douglas,

I had a chance to chat with Grant, and we have a couple of ideas, but
we need some more info first.  Grant says the IO_ADDR_EN is supposed
to be set by the PDC ... but if no devices exist on the PCI bus below
the dino, it is possible the IO_ADDR_EN could be 0.  If this is the
case, then we need to move the BUG() to a different spot in code.

Grant thinks a possible reason the J2240 crashes is because the
rs232 port could both be on the dino and the cujo buses ... and we
do not currently support that configuration.  I'm not sure if work is
being done in that area yet or not ... hopefully someone on this list
will pipe up if they are working on it.

I have attached a small patch that will hopefully confirm our thoughts
about the IO_ADDR_EN BUG() that I hope you will try out and report
back the results.  And hopefully someone is working on providing 
rs232 port support for the dino/cujo busses.

Sorry we do not have a better answer for you.

- Ryan

On Sun, May 13, 2001 at 02:14:05PM -0600, Ryan Bradetich wrote:
> Douglas,
> 
> I glanced through the dino.c code and found the following comment:
> 
> /*
> ** If hversion is what is read from Dino, we should be OK.
> ** If it's what PDC told us, J2240 PDC reports the hv_model wrong
> ** for the first Dino.  I think it reports 0x05d.  <sigh>...
> **
> 
> This comment appears to apply to the bug you are seening since this 
> device shows up in your inventory. 
> 
> > 13. Unknown device (13) at 0xfc000000, versions 0x5d, 0x3, 0xa, 0x0, 0x0
> > Dino version J2240 (bridge mode) found at 0xfc000000
> 
> I will take a look at it some more later today to see if I can figure
> it out, but Grant Grundler probably already knows how to fix the problem :)
> 
> Thanks,
> 
> - Ryan
> 
> On Mon, May 14, 2001 at 05:33:10AM +1000, Douglas T. Crosher wrote:
> > Ryan Bradetich wrote:
> > ...
> > > I have to fess up on this one, since this machine uses both the
> > > ccio-dma driver and the 32-bit pdc translator :)  I hve been testing
> > > on a C200 that uses the ccio-dma driver and the 32-bit translator
> > > also ... but I have not been able to boot the machine with a 64-bit
> > > kernel yet.  I think it is a problem with the ccio-dma driver, but
> > > I have been unable to find the error yet.
> > > 
> > > Booting the machine with a 32-bit kernel should work fine ... if it
> > > does not, post the output to the list again we can try to help debug
> > 
> > Below is the output for the 32 bit kernel which proceeds in
> > a similar manner to the 64 bit kernel and has the same problems.
> > 
> > Regards
> > Douglas Crosher
> > 
> > -=-=-
> > 
> > HARD Booted.
> > palo ipl <> Sun May 13 11:53:13 EST 2001
> > 0/vmlinux 2614364 bytes @ 0x6800
> > 0/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100
> > console=ttyS0'
> > Kernel: partition 0 file /vmlinux
> > ELF32 executable
> > Entry 00100000 first 00100000 n 5
> > Segment 0 load 00100000 size 1516512 mediaptr 0x1000
> > Segment 1 load 00274000 size 181808 mediaptr 0x174000
> > Segment 2 load 002a4000 size 219576 mediaptr 0x1a1000
> > Segment 3 load 002dc000 size 8192 mediaptr 0x1d7000
> > Segment 4 load 0030a068 size 75520 mediaptr 0x1d9068
> > branching to kernel entry point 0x00100000
> > Set default PSW W bit to 0
> > PDC Console Initialized
> > Linux version 2.4.0 () (gcc version 3.0 20010427 (prerelease)) #8 Mon May 14
> > 05:02:36 EST 2001
> > FP[0] enabled: Rev 0 Model 14
> > The 32-bit Kernel has started...
> > Determining PDC firmware type: Newer Box
> > setup_cmdline(0x64cc4,0x64cc4,0x0,0x0)
> > PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100
> > console=ttyS0'
> > PALO initrd 0-0
> > model   00005b50 00000491 00000000 00000002 77c5684a 100000f0 00000008 000000b2
> > 000000b2
> > vers    00000501
> > cpuid   000001d7
> > CPUID   vers 14 rev 23
> > model   9000/782/J2240
> > Total Memory: 96 Mb
> > initrd: 00000000-00000000
> > pagetable_init
> > On node 0 totalpages: 24576
> > zone(0): 24576 pages.
> > zone(1): 0 pages.
> > zone(2): 0 pages.
> > led_init: chassis info: model=0 (LCD), lcd_width=16, cmd_delay=40, actcnt=32,
> > maxcnt=32
> > led_init: min_cmd_delay = 40 uS
> > LCD display at f0190000,f0190001 registered
> > Searching for devices...
> > Found devices:
> > 1. SummitHawk Dino RS-232 (10) at 0xfc003000, versions 0x5d, 0x0, 0x8c, 0x0, 0x0
> > 2. SummitHawk Dino RS-232 (10) at 0xf1607000, versions 0x5d, 0x0, 0x8c, 0x0, 0x0
> > 3. SummitHawk 230 Core BA (11) at 0xffd00000, versions 0x5c, 0x0, 0x81, 0x0,
> > 0x0,  additional addresses: 0xffd0c000 0xffc00000 
> > 4. SummitHawk 230 Core SCSI (10) at 0xffd06000, versions 0x5c, 0x0, 0x82, 0x0,
> > 0x0
> > 5. SummitHawk 230 Core Centronics (10) at 0xffd02000, versions 0x5c, 0x0, 0x74,
> > 0x0, 0x0,  additional addresses: 0xffd01000 0xffd03000 
> > 6. SummitHawk 230 Core Audio (10) at 0xffd04000, versions 0x5c, 0x4, 0x7b, 0x0,
> > 0x0
> > 7. SummitHawk 230 Core PC Keyboard (10) at 0xffd08000, versions 0x5c, 0x0, 0x84,
> > 0x0, 0x0
> > 8. SummitHawk 230 Core PC Keyboard (10) at 0xffd08100, versions 0x5c, 0x0, 0x84,
> > 0x0, 0x0
> > 9. U2-IOA BC GSC+ Port (7) at 0xfc03f000, versions 0x501, 0x1, 0xc, 0x3, 0x0
> > 10. U2-IOA BC GSC+ Port (7) at 0xf163f000, versions 0x501, 0x1, 0xc, 0x3, 0x0
> > 11. Cujo PCI Bridge (13) at 0xf1604000, versions 0x682, 0x1, 0xa, 0x1, 0x0
> > 12. Dino PCI Bridge (13) at 0xfc004000, versions 0x680, 0x3, 0xa, 0x0, 0x0, 
> > additional addresses: 0xfc800000 
> > 13. Unknown device (13) at 0xfc000000, versions 0x5d, 0x3, 0xa, 0x0, 0x0
> > 14. U2-IOA BC Runway Port (12) at 0xfff88000, versions 0x580, 0xf, 0xb, 0x1,
> > 0x50
> > 15. U2-IOA BC Runway Port (12) at 0xfff8a000, versions 0x580, 0xf, 0xb, 0x1,
> > 0x50
> > 16. SummitHawk U+ (0) at 0xfffa0000, versions 0x5b5, 0x0, 0x4, 0x0, 0x91
> > 17. SummitHawk U+ (0) at 0xfffa2000, versions 0x5b5, 0x0, 0x4, 0x0, 0x91
> > 18. SummitHawk Memory (1) at 0xfffb1000, versions 0x83, 0x0, 0x9, 0x0, 0x0
> > That's a total of 18 devices.
> > CONFIG_SMP=n  ignoring additional CPUs
> > Warning : device (0, 0x5b5, 0x0, 0x4, 0x0) NOT claimed by CPU PARISC
> > CPU(s): 1 x PA8200 (PCX-U+) at 236.000000 MHz
> > Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.0.100
> > console=ttyS0
> > Calibrating delay loop... 470.22 BogoMIPS
> > Memory: 94416k available
> > Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
> > Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
> > Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
> > Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
> > POSIX conformance testing by UNIFIX
> > Lasi version 0 at 0xffd00000 found.
> > Initializing Lasi PS/2-keyboard port at 0xffd08000...
> > Support for Lasi PS/2-psaux not yet available !
> > Dino version 3.1 (bridge mode) found at 0xfc004000
> > Dino version J2240 (bridge mode) found at 0xfc000000
> > dino_bridge_init: IO_ADDR_EN hasn't been configured.
> > kernel BUG at dino.c:795!
> > ccio found U2 I/O MMU at 0xfff88000
> > io_io_high: 0xfff80000 io_io_low: 0xf4000000
> > ccio found U2 I/O MMU at 0xfff8a000
> > io_io_high: 0xf4000000 io_io_low: 0xf1600000
> > Linux NET4.0 for Linux 2.4
> > Based upon Swansea University Computer Society NET3.039
> > Starting kswapd v1.8
> > pty: 256 Unix98 ptys configured
> > lp: driver loaded but no devices found
> > RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> > Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI
> > enabled
> > busdevice_alloc_irq(0x102e0244): No known LASI/ASP/WAX owns device at 0xfc003000
> > !
> > IRQ not found for serial device at 0xfc003000
> > Warning : device (10, 0x5d, 0x0, 0x8c, 0x0) NOT claimed by serial device 715/new
> > or similiar
> > busdevice_alloc_irq(0x102e027c): No known LASI/ASP/WAX owns device at 0xf1607000
> > !
> > IRQ not found for serial device at 0xf1607000
> > Warning : device (10, 0x5d, 0x0, 0x8c, 0x0) NOT claimed by serial device 715/new
> > or similiar
> > 
> > Dumping Stack from 10034000 to 10034a80:
> > 4000 00000000 00000040 00000000 00000000 10289440 00000001 00000000 ffffffff
> > ...
> > 4a60 00000000 00000000 10108c2c 10106744 11111111 00000000 3e743615 25db7828
> > 
> > Kernel Fault: Code=26 regs=10034840 (Addr=00000004)
> > 
> >      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > PSW: 00000000000001100000000000001110
> > r0-3     00000000 102e30c0 1010cd98 10297194
> > r4-7     0000ffff 0000002f 00000000 0000000f
> > r8-11    00002000 102f8d64 0004000e 102a4674
> > r12-15   000000f2 000000fa f0140000 00000007
> > r16-19   f000173c f0000218 f0000210 ffffffff
> > r20-23   1029c11c 102f59e8 101f1750 ffffffff
> > r24-27   0000002f 0000ffff 00000000 10274010
> > r28-31   00000000 0000002f 10034a80 1010cd98
> > sr0-3    00000000 00000000 00000000 00000000
> > sr4-7    00000000 00000000 00000000 00000000
> > 
> > IASQ: 00000000 00000000 IAOQ: 101f177c 101f1780
> >  IIR: 0cc81099    ISR: 00000000  IOR: 00000004
> > ORIG_R28: 55555555
> > 
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> > 
> 
> -- 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 

-- 

--u3/rZRmxL6MmkK24
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="dino.patch"

Index: dino.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/gsc/dino.c,v
retrieving revision 1.26
diff -u -p -r1.26 dino.c
--- dino.c	2001/03/11 07:05:59	1.26
+++ dino.c	2001/05/16 04:59:37
@@ -786,15 +786,19 @@ dino_bridge_init(struct dino_device *din
 	
 	io_addr = gsc_readl(dino_dev->hba.base_addr+DINO_IO_ADDR_EN);
 
+	printk("%s() addr: %p hver: 0x%x sver: 0x%x io_addr: 0x%x\n", __FUNCTION__, dino_dev->hba.base_addr,
+	       dino_dev->hba.iodc_info->hversion, dino_dev->hba.iodc_info->sversion, io_addr);
 	for ( ; ((bmask & io_addr) == 0) && (bpos <33); 
 		bmask<<=1, bpos++) { 
 	};
 
+#if 0
+	/* FIX ME .... this does not need to be checked here. */
 	if (bpos == 33) {
 		printk(KERN_WARNING "%s: IO_ADDR_EN hasn't been configured.\n", __FUNCTION__ );
 		BUG();
 	}
-	
+#endif
 	/*
 	** Calculate the base of the Host I/O address range
 	** Dino will forward to the PCI bus.

--u3/rZRmxL6MmkK24--




From - Thu Nov 08 21:17:37 2018
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Sorry to be sending this to the list, but I wasn't sure who other than
Richard needs to see it.

This has been asked before, by me, but I'd really like to get this going
soon. I was under the impression that Richard Hirst was to be receiving a
735 in the last week or so. If so, how's progress on the FW scsi support
going Richard (that was only a little bit tongue-in-cheek). Otherwise, I was
also under the impression that someone (can't remember who now, which is why
I'm sending this to the list rather than directly to the individual) was
going to be organising some doc's on the Outfield chip for me (or, at least,
some sort of NDA in anticipation of said docs). Is there any progress on
this? Who do I have to prod (unfortunately away from real development work)
to get this in my hands? 

If this has to wait until after the official release, that's fine, just let
me know; I'll be tied up with other things for a few weeks anyway, but I
just wanted to get the ball rolling again, and to let y'all know I'm still
keen on this.

A related note: is there support for the EISA bus in this machine, or will
that come when(if) outfield is fully supported? I'd really like to be able
to run ISA network cards in my machine (even if there's only support for
something as basic as NE2000!).

Great work guys - still can't believe I can boot this machine with Linux!

Cheers,
Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - 4069
ph:  (07) 3327 4685     fax:  (07) 3327 4455
email:  m.vandewerken@cat.csiro.au




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From: "Joel Lansden" <joel@digitalparadise.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:11055

Greetings all!

I am getting an error message when I try to boot my 9000 box from this
CD I created from the ISO image.  The error message is:

	"Can't select default wide mode, PDC_PSW call does not work"

I'm not sure what information I need to provide about my system
to aid in possibly resolving this, but if anyone could help me out
I would really appreciate it.

Thanks a million!
joel@digitalparadise.net




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Subject: [parisc-linux] Re: hppa-linux libgcc
Date: Wed, 16 May 2001 21:10:20 +0930
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To: Mark Kettenis <kettenis@science.uva.nl>
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Xref: news.gmane.org gmane.linux.ports.parisc:11056

On Wed, May 16, 2001 at 10:50:40AM +0200, Mark Kettenis wrote:
>    When building shared libs, hppa-linux needs to link against the static
>    version of libgcc to pick up millicode routines.  hppa-linux doesn't
>    currently support a shared libgcc because millicode functions cannot
>    be exported from a shared lib due to the ABI (linker and dynamic linker
>    really).  To successfully use a shared libgcc, we'd need to link against
>    _both_ libgcc_s.so and libgcc.a, which is a pain.
> 
> Did you consider using a linker script for libgcc_s.so instead of the
> usual symbolic link to libgcc_s.so.0?

No.  I mainly considered fixing the linker to support calls to millicode
in shared libs, but didn't get one of those round tuits.  :-(

>  The contents of libgcc_s.so
> would be something like:
> 
>   GROUP ( libgcc_s.so.0 libgcc.a )
> 
> Glibc uses a similar trick (take a look at /usr/lib/libc.so), and it
> seems to work fine.

Thanks.  That's a good idea.





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From: "Douglas T. Crosher" <dtc@scieneer.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] J2240?
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Xref: news.gmane.org gmane.linux.ports.parisc:11057

Ryan Bradetich wrote:
...
> I had a chance to chat with Grant, and we have a couple of ideas, but
> we need some more info first.  Grant says the IO_ADDR_EN is supposed
> to be set by the PDC ... but if no devices exist on the PCI bus below
> the dino, it is possible the IO_ADDR_EN could be 0.  If this is the
> case, then we need to move the BUG() to a different spot in code.
...
> I have attached a small patch that will hopefully confirm our thoughts
> about the IO_ADDR_EN BUG() that I hope you will try out and report
> back the results.  And hopefully someone is working on providing
> rs232 port support for the dino/cujo busses.

Here is the relevant output with you patch applied:

...
Dino version 3.1 (bridge mode) found at 0xfc004000
dino_bridge_init() addr: fc004000 hver: 0x680 sver: 0xa io_addr: 0x2000000
Dino version J2240 (bridge mode) found at 0xfc000000
dino_bridge_init() addr: fc000000 hver: 0x5d sver: 0xa io_addr: 0x0
...

Thanks for looking into it.

Regards
Douglas Crosher




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Help with bootable CD
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"Joel Lansden" wrote:
> I am getting an error message when I try to boot my 9000 box from this
> CD I created from the ISO image.  The error message is:
> 
> 	"Can't select default wide mode, PDC_PSW call does not work"
> 
> I'm not sure what information I need to provide about my system

In general, complete console log from a serial console.
But in this case "model" string should do. (eg 9000/800/A500-44)

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Dear all,

Nice job regarding STI release (I just test it for now). The problem I met
with install-config with 0.6 CD seems to be solved: great :)

Just to mentioned that the preinstall of whiptail and modconf was not happy.
I just try to install debhelper which request lynx. And the install of lynx
loop because of frontend and whiptail. As work around I removed those
packages (replace with dialog). It works (without and with dialog).

I also try vmlinux712+son+mouse.
It runs but STI console was not initialize?
I would like to help more about this but I never find the right .config file
to recompile the right cvs linux which works properly with STI console of my
B180 (as do so well your kernel)(I already test all tips of the mailing-list
know till one month). Could you help me? (by sending me your .config and the
cvs date for example)

!!! I just try binutils_2.11.90.0.7-2.99_hppa.deb but as failed on 'bus
error' !!!

I also install XFREE86-4.0.3 from debian pool site (with an STI console it
would be nice) but xf86config did not write /etc/X11/XF86config-4? Is some
one have some working XF86config-4 to let me try further?


Kind regards,

	Joel


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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Help with bootable CD
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Xref: news.gmane.org gmane.linux.ports.parisc:11060

"Joel Lansden" wrote:
> I have an H50 with 256Mb Memory, 4 C2490A 2gb hard drives, and a regular HP
> SCSI CD-ROM.
> Does this help at all?

A bit. HP hasn't done any testing on Nova class boxes.

Some folks are running parisc-linux on E55 (iirc) using NFS root.
FWIW, they are only capable of 32-bit kernels. Forget
trying to install the CD on local disk since we have no drivers
for the HP-PB SCSI interfaces. At www.parisc-linux.org , read the
FAQ answer to "is my HW supported".

Please submit a bug to either kernel or palo project which includes
*all* serial console output. See http://bugs.parisc-linux.org/
for info on how to submit bugs.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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On Wed, May 16, 2001 at 08:05:56PM +0200, SOETE Jo?l wrote:

> !!! I just try binutils_2.11.90.0.7-2.99_hppa.deb but as failed on 'bus
> error' !!!

Don't use anything based on HJ's .0.7 binutils (which this deb is).
It has half of a necessary change installed, which unfortunately
for hppa-linux means 2.11.90.0.7* generates bad objects with
references to ".plt - 1".  These references will generate an
unaligned data trap when you hit them.

-- 
Alan Modra





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From: Matt Taggart <taggart@carmen.fc.hp.com>
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amodra@one.net.au writes...

> On Wed, May 16, 2001 at 08:05:56PM +0200, SOETE Jo?l wrote:
> 
> > !!! I just try binutils_2.11.90.0.7-2.99_hppa.deb but as failed on 'bus
> > error' !!!
> 
> Don't use anything based on HJ's .0.7 binutils (which this deb is).

No that deb is using .0.8 source so it's ok. Sorry, the name is confusing
(.0.7-2.99) because I wanted people to be able to apt upgrade cleanly when
the real .0.8 deb is available next week. BTW- I hadn't meantioned it here
yet but these debs are available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/newcompilers-20010515/

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation




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From: "Bright, Stephen" <Stephen.Bright@thales-esecurity.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Booting from SCSI disk.
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Hi,

I have a newly acquired 712/80 which I have booting happily via NFS.  I
would like to set it up to boot from the SCSI hard drive.  However, reading
the instructions on the website states that you need to use an i386 machine
to fdisk and run palo on the hdd.  Unfortunately I don't own a SCSI card for
my i386 boxes.

Is it not possible to run fdisk and palo on the HP itself?  I have tried
this, but when it boots I get a message along the lines of "Cannot grok the
kernel executable" (sorry, this is quoted from memory, so may not be exactly
correct).  Is there something preventing me doing this correctly?  Is an
i386 with SCSI card still required to setup the boot disk correctly?

If it helps, I fdisk'ed the hdd:
~20M partition type F0
~900M partition type 83
~80M partition type 82

-- 
Steve
 




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From: "Mikkel Lauritsen" <ml@Catalog-international.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problems booting 712/100 with 0.6 ISO
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Hi all,

I fear that this might be an extremely stupid question, but I'm
having problems booting my 712/100 from the 0.6 ISO. Yes, I know
there's a newer one available, but the old should still work,
right?

I've downloaded the palinux-0.6-32STI.iso.gz file and burnt it
on a CD. The CD itself looks fine when mounted on the same box
under HP-UX; it contains what looks like a complete file system.
BTW, all of the files and directories on the CD have uppercase
names. Is that the way it's supposed to be?

Anyway, entering

boot scsi.3.0

from the boot monitor prompt makes the CD-rom drive rattle a bit,
and then the prompt is redisplayed.

Am I missing out on something completely obvious here? I've had
to swap the original HP CD-drive (Toshiba 5701) with an old NEC
drive that I dug up since the former one wouldn't read the CD,
but otherwise I don't think there are any hardware problems
involved.

Any light shed on this will be much appreciated. Thanks,

 Mikkel Lauritsen




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From: amodra@one.net.au
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Subject: [parisc-linux] Really hide millicode syms
Date: Thu, 17 May 2001 20:54:40 +0930
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Xref: news.gmane.org gmane.linux.ports.parisc:11065

A change to elf32_hppa_hide_symbol meant that clobber_millicode_symbols
wasn't doing its job to prevent millicode from being exported from
shared libs.  Among other things, this resulted in stubs trying to
load from .plt - 1, which bombs with an unaligned access.

	* elf32-hppa.c (clobber_millicode_symbols): Temporarily set
	ELF_LINK_FORCED_LOCAL to suit 2001-04-30 change.
	(hppa_build_one_stub): Add an assert to check plt.offset.

-- 
Alan Modra

Index: bfd/elf32-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
retrieving revision 1.32
diff -u -p -r1.32 elf32-hppa.c
--- elf32-hppa.c	2001/04/30 16:13:26	1.32
+++ elf32-hppa.c	2001/05/17 11:02:14
@@ -938,6 +938,7 @@ hppa_build_one_stub (gen_entry, in_arg)
 
     case hppa_stub_import:
     case hppa_stub_import_shared:
+      BFD_ASSERT (stub_entry->h->elf.plt.offset < (bfd_vma) -2);
       sym_value = (stub_entry->h->elf.plt.offset
 		   + hplink->splt->output_offset
 		   + hplink->splt->output_section->vma
@@ -2147,7 +2148,13 @@ clobber_millicode_symbols (h, info)
   /* Note!  We only want to remove these from the dynamic symbol
      table.  Therefore we do not set ELF_LINK_FORCED_LOCAL.  */
   if (h->type == STT_PARISC_MILLI)
-    elf32_hppa_hide_symbol (info, h);
+    {
+      unsigned short oldflags = h->elf_link_hash_flags;
+      h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
+      elf32_hppa_hide_symbol (info, h);
+      h->elf_link_hash_flags &= ~ELF_LINK_FORCED_LOCAL;
+      h->elf_link_hash_flags |= oldflags & ELF_LINK_FORCED_LOCAL;
+    }
   return true;
 }
 




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From: "Dr. David Gilbert" <gilbertd@treblig.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting from SCSI disk.
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To: "Bright, Stephen" <Stephen.Bright@thales-esecurity.com>
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On Thu, 17 May 2001, Bright, Stephen wrote:

> Is it not possible to run fdisk and palo on the HP itself?  I have tried
> this, but when it boots I get a message along the lines of "Cannot grok the
> kernel executable" (sorry, this is quoted from memory, so may not be exactly
> correct).  Is there something preventing me doing this correctly?  Is an
> i386 with SCSI card still required to setup the boot disk correctly?

I managed to get this to work last weekend; I have a 712/30 and found that
a palo binary was included in the standard binary set and I'm pretty sure
that I used the image that I was previously using to net boot it with.

Dave
/---------------| +44-161-286-2000 Ex258 |-------------------------\
| Dr. David Alan Gilbert | Work:david.gilbert@powerxnetworks.com   |
| -------- G7FHJ --------|---------------------------------------- |
| Home: dave@treblig.org            http://www.treblig.org         |
\------------------------------------------------------------------/





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From: Charlie Navarro <charlie_navarro@yahoo.com>
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Subject: [parisc-linux] XF86Config-4
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Hello,

I have a 712/60 with STI kernel and XFree86 4.0.3, but I can not make the 
correct XF86Config-4. 
Where do I download an example?

Thanks in advance

Charlie




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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting from SCSI disk.
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On Thu, May 17, 2001 at 11:32:35AM +0100, Bright, Stephen wrote:
> Is it not possible to run fdisk and palo on the HP itself?

Yes, it is, i've done it.

> I have tried
> this, but when it boots I get a message along the lines of "Cannot grok the
> kernel executable" (sorry, this is quoted from memory, so may not be exactly
> correct).

i bet you're using the lifimage instead of the vmlinuz.  paul, would it
be feasible to check for this and print a more helpful error message in
this instance?

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:17:38 2018
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Subject: Re: [parisc-linux] XF86Config-4
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On Thu, May 17, 2001 at 11:11:46AM -0300, Charlie Navarro wrote:
> I have a 712/60 with STI kernel and XFree86 4.0.3, but I can not make the 
> correct XF86Config-4. 
> Where do I download an example?

X servers aren't supported yet.  If you want to hack one up yourself,
please go ahead.

-- 
Revolutions do not require corporate support.




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From: Xavier Debacker <debackex@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting from SCSI disk.
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> Hi,                                                                 
>                                                                     
> I have a newly acquired 712/80 which I have booting happily via NFS.
 I                                                                    
> would like to set it up to boot from the SCSI hard drive.  However, 
reading                                                               
> the instructions on the website states that you need to use an i386 
machine                                                               
> to fdisk and run palo on the hdd.  Unfortunately I don't own a SCSI 
card for                                                              
> my i386 boxes.                                                      
                                                                      
Hi Stephen,                                                           
                                                                      
Maybe you can use the cdrom iso (think about the easy sys-install and 
net-install scripts)                                                  
If you don't have any external scsi cdrom drive, you can still use the
contents as a nfsroot with a few changes (keeping your current /etc   
directory should be enough)                                           
                                                                      
http://mkhppa1.esiee.fr/en/download.html for latest iso               
                                                                      
good luck                                                             
Xavier.                                                               




From - Thu Nov 08 21:17:39 2018
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From: Jan Heumann <jheumann@fonts.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PA-Linux 0.6.1 on HP 9000 710, kernel =?iso-8859-1?Q?can=B4t?= find the
 cd-rom
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Hi,

ich habe auf mehreren HP 9000 710 50MHz die 0.6.1 PA-RISC ISO getestet.
Jedesmal kann das CD-Laufwerk vom Kernel nicht gefunden werden. Ist dies
noch ein Bug im NCR53c7xx LASI Treiber bzw. ist es bereits behoben?

I have just tested the 0.6.1 PA-RISC ISO on several HP 9000 710 with 50
MHZ. The Kernel is always unable to find the CD-Rom. Is this a bug
within the NCR53c7xx, or am I missing something? Is there a patch/fix?

Here is a copy of the boot log:

Hier das Boot-Log:

(c) Copyright.  Hewlett-Packard Company.  1991.
All rights reserved.

PDC ROM rev. 2.0
IODC ROM rev. 2.0
64 MB of memory configured and tested.


Selecting a system to boot.
To stop selection process, press and hold the ESCAPE key.

Selection process stopped.

Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Search terminated.



b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu: a
BOOT_ADMIN> info
----------------------------- Hardware Configuration
------------------------

Machine model: 9000/710

Processor Frequency        = 50000000 Hz
I/O Subsystem Frequency    = 25000000 Hz

LAN Jumper Status: External AUI Port selected

Processor Revision                  = 3
System Controller Revision          = 0
Floating Point Coprocessor Revision = 3

Hardware Version            12288     (0x00003000)
Software Version             1153     (0x00000481)

BOOT_ADMIN> boot scsi.4.0

Trying scsi.4.0
Boot path initialized.
Attempting to load IPL.

Hard booted.
palo ipl debackex@pc5158a Wed Apr 11 17:56:43 CEST 2001
0/vmlinux 2619890 bytes @ 0x4fc000
0/palo-cmdline '0/vmlinux ROOT=/ TERM=linux root=/dev/scd0 console=ttyS0
ramdisk=8192'
Kernel: partition 0 file /vmlinux
ELF32 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 1530128 mediaptr 0x1000
Segment 1 load 00276000 size 182408 mediaptr 0x177000
Segment 2 load 002a4000 size 212996 mediaptr 0x1a4000
Segment 3 load 002dc000 size 8192 mediaptr 0x1d9000
Segment 4 load 00323a48 size 75904 mediaptr 0x1dba48
branching to kernel entry point 0x00100000
PDC Console Initialized
Linux version 2.4.0 (debackex@pc5158a) (gcc version 2.97 20010203
(experimental)) #6 Mon May 14 14:37:01 CEST 2001
FP[0] enabled: Rev 3 Model 0
The 32-bit Kernel has started...
Determining PDC firmware type: Older Legacy Box
setup_cmdline(0x64d58,0x64d58,0x0,0x0)
PALO command line: 'ROOT=/ TERM=linux root=/dev/scd0 console=ttyS0
ramdisk=8192'
PALO initrd 0-0
model   00003000 00000481 00000000 00000000 00000000 00000000 00000004
0000000d 00000000
vers    00000003
CPUID   vers 0 rev 0
model   9000/710
Total Memory: 64 Mb
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Searching for devices...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0,
0x77, 0x0, 0x0
2. Bushmaster Core BA (11) at 0xf082f000, versions 0x6, 0x0, 0x70, 0x0,
0x0
3. Bushmaster Core SCSI (10) at 0xf0825000, versions 0x6, 0x0, 0x71,
0x0, 0x0
4. Bushmaster Core LAN (802.3) (10) at 0xf0826000, versions 0x6, 0x0,
0x72, 0x0, 0x0
5. Bushmaster Core HIL (10) at 0xf0821000, versions 0x6, 0x0, 0x73, 0x0,
0x0
6. Bushmaster Core RS-232 (10) at 0xf0823000, versions 0x6, 0x0, 0x75,
0x0, 0x0
7. Bushmaster Core RS-232 (10) at 0xf0822000, versions 0x6, 0x0, 0x75,
0x0, 0x0
8. Bushmaster Core Centronics (10) at 0xf0824000, versions 0x6, 0x0,
0x74, 0x0, 0x0
9. Bushmaster Audio (10) at 0xf1000000, versions 0x6, 0x0, 0x7a, 0x0,
0x0
10. Bushmaster (710) (0) at 0xfffbe000, versions 0x300, 0x0, 0x4, 0x0,
0x81
11. Bushmaster (1) at 0xfffbf000, versions 0x16, 0x0, 0x9, 0x0, 0x0
That's a total of 11 devices.
CPU(s): 1 x PA7000 (PCX-S) at 50.000000 MHz
Kernel command line: ROOT=/ TERM=linux root=/dev/scd0 console=ttyS0
ramdisk=8192
Error reading tod clock
Calibrating delay loop... 49.76 BogoMIPS
Memory: 62044k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
ASP version 1 at 0xf0800000 found.
LED (ASP-style) display at f0800020 registered
Found HIL at 0xf0821000, IRQ 94
HIL: timed out, assuming no keyboard present.
Warning : device (10, 0x6, 0x0, 0x73, 0x0) NOT claimed by HIL 712, 715
or similiar
Found i82596 at 0xf0826000, IRQ 87
early initialization of device eth0 is deferred
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 8C CD 84 IRQ 87.
82596.c $Revision: 1.17 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
lp0: using parport0 (interrupt-driven).
SCSI subsystem driver Revision: 1.00
sim700: Couldn't get consistent shared memory
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
Post test1, istat 05, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: WARNING: target data areas are not dma coherent!
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
scsi0: Unable to abort command for target 0
scsi0: Unable to send Bus Device Reset for target 0
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
scsi0: Unable to abort command for target 1
scsi0: Unable to send Bus Device Reset for target 1
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
scsi0: Unable to abort command for target 2
scsi0: Unable to send Bus Device Reset for target 2
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
scsi0: Unable to abort command for target 3
scsi0: Unable to send Bus Device Reset for target 3
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
scsi0: Unable to abort command for target 4
scsi0: Unable to send Bus Device Reset for target 4
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
scsi0: Unable to abort command for target 5
scsi0: Unable to send Bus Device Reset for target 5
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
scsi0: Unable to abort command for target 6
scsi0: Unable to send Bus Device Reset for target 6
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: could not halt NCR chip, stage 0
linear personality registered
raid0 personality registered
raid1 personality registered
raid5 personality registered
raid5: measuring checksumming speed
 8regs          :    34.671 MB/sec
 8regs_prefetch :    40.767 MB/sec
 32regs         :    32.004 MB/sec
 32regs_prefetch:    41.148 MB/sec
raid5: using function: 32regs_prefetch (41.148 MB/sec)
md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md.c: sizeof(mdp_super_t) = 4096
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 4096)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Cannot open root device "scd0" or 0b:00
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on 0b:00



--
        Jan Heumann

  .~.
  /V\
/( : )\
 ^^ ^^







From - Thu Nov 08 21:17:39 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] Samba autobuild
Date: Fri, 18 May 2001 17:01:28 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:11072

FYI, I've set up a samba autobuilder on a 712/80 here; you can monitor its
progress on http://build.samba.org/.  after a couple of teething problems
(i forgot to install libpam-dev), we're up and running with the rest.
we have fewer warnings than most, which makes me happy.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:17:39 2018
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From: "Jim Buttafuoco" <jim@buttafuoco.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] PA-Linux 0.6.1 on HP 9000 710, kernel cant find the cd-rom
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To: Jan Heumann <jheumann@fonts.de>, parisc-linux@thepuffingroup.com
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Xref: news.gmane.org gmane.linux.ports.parisc:11073

Jan,

Currently the 710 is not supported.  There seems to be a problem with
the interrupt controller.  (Correct me if I am wrong.)  I try to get my
710 to boot every week or so and NO go.  You can get a complete history
of my problems via the mail archives
 
Jim

> Hi,
> 
> ich habe auf mehreren HP 9000 710 50MHz die 0.6.1 PA-RISC ISO
getestet.
> Jedesmal kann das CD-Laufwerk vom Kernel nicht gefunden werden. Ist
dies
> noch ein Bug im NCR53c7xx LASI Treiber bzw. ist es bereits behoben?
> 
> I have just tested the 0.6.1 PA-RISC ISO on several HP 9000 710 with
50
> MHZ. The Kernel is always unable to find the CD-Rom. Is this a bug
> within the NCR53c7xx, or am I missing something? Is there a patch/fix?
> 
> Here is a copy of the boot log:
> 
> Hier das Boot-Log:
> 
> (c) Copyright.  Hewlett-Packard Company.  1991.
> All rights reserved.
> 
> PDC ROM rev. 2.0
> IODC ROM rev. 2.0
> 64 MB of memory configured and tested.
> 
> 
> Selecting a system to boot.
> To stop selection process, press and hold the ESCAPE key.
> 
> Selection process stopped.
> 
> Searching for Potential Boot Devices.
> To terminate search, press and hold the ESCAPE key.
> 
> Search terminated.
> 
> 
> 
> b)    Boot from specified device
> s)    Search for bootable devices
> a)    Enter Boot Administration mode
> x)    Exit and continue boot sequence
> ?)    Help
> 
> Select from menu: a
> BOOT_ADMIN> info
> ----------------------------- Hardware Configuration
> ------------------------
> 
> Machine model: 9000/710
> 
> Processor Frequency        = 50000000 Hz
> I/O Subsystem Frequency    = 25000000 Hz
> 
> LAN Jumper Status: External AUI Port selected
> 
> Processor Revision                  = 3
> System Controller Revision          = 0
> Floating Point Coprocessor Revision = 3
> 
> Hardware Version            12288     (0x00003000)
> Software Version             1153     (0x00000481)
> 
> BOOT_ADMIN> boot scsi.4.0
> 
> Trying scsi.4.0
> Boot path initialized.
> Attempting to load IPL.
> 
> Hard booted.
> palo ipl debackex@pc5158a Wed Apr 11 17:56:43 CEST 2001
> 0/vmlinux 2619890 bytes @ 0x4fc000
> 0/palo-cmdline '0/vmlinux ROOT=/ TERM=linux root=/dev/scd0
console=ttyS0
> ramdisk=8192'
> Kernel: partition 0 file /vmlinux
> ELF32 executable
> Entry 00100000 first 00100000 n 5
> Segment 0 load 00100000 size 1530128 mediaptr 0x1000
> Segment 1 load 00276000 size 182408 mediaptr 0x177000
> Segment 2 load 002a4000 size 212996 mediaptr 0x1a4000
> Segment 3 load 002dc000 size 8192 mediaptr 0x1d9000
> Segment 4 load 00323a48 size 75904 mediaptr 0x1dba48
> branching to kernel entry point 0x00100000
> PDC Console Initialized
> Linux version 2.4.0 (debackex@pc5158a) (gcc version 2.97 20010203
> (experimental)) #6 Mon May 14 14:37:01 CEST 2001
> FP[0] enabled: Rev 3 Model 0
> The 32-bit Kernel has started...
> Determining PDC firmware type: Older Legacy Box
> setup_cmdline(0x64d58,0x64d58,0x0,0x0)
> PALO command line: 'ROOT=/ TERM=linux root=/dev/scd0 console=ttyS0
> ramdisk=8192'
> PALO initrd 0-0
> model   00003000 00000481 00000000 00000000 00000000 00000000 00000004
> 0000000d 00000000
> vers    00000003
> CPUID   vers 0 rev 0
> model   9000/710
> Total Memory: 64 Mb
> initrd: 00000000-00000000
> pagetable_init
> On node 0 totalpages: 16384
> zone(0): 16384 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> Searching for devices...
> Found devices:
> 1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0,
> 0x77, 0x0, 0x0
> 2. Bushmaster Core BA (11) at 0xf082f000, versions 0x6, 0x0, 0x70,
0x0,
> 0x0
> 3. Bushmaster Core SCSI (10) at 0xf0825000, versions 0x6, 0x0, 0x71,
> 0x0, 0x0
> 4. Bushmaster Core LAN (802.3) (10) at 0xf0826000, versions 0x6, 0x0,
> 0x72, 0x0, 0x0
> 5. Bushmaster Core HIL (10) at 0xf0821000, versions 0x6, 0x0, 0x73,
0x0,
> 0x0
> 6. Bushmaster Core RS-232 (10) at 0xf0823000, versions 0x6, 0x0, 0x75,
> 0x0, 0x0
> 7. Bushmaster Core RS-232 (10) at 0xf0822000, versions 0x6, 0x0, 0x75,
> 0x0, 0x0
> 8. Bushmaster Core Centronics (10) at 0xf0824000, versions 0x6, 0x0,
> 0x74, 0x0, 0x0
> 9. Bushmaster Audio (10) at 0xf1000000, versions 0x6, 0x0, 0x7a, 0x0,
> 0x0
> 10. Bushmaster (710) (0) at 0xfffbe000, versions 0x300, 0x0, 0x4, 0x0,
> 0x81
> 11. Bushmaster (1) at 0xfffbf000, versions 0x16, 0x0, 0x9, 0x0, 0x0
> That's a total of 11 devices.
> CPU(s): 1 x PA7000 (PCX-S) at 50.000000 MHz
> Kernel command line: ROOT=/ TERM=linux root=/dev/scd0 console=ttyS0
> ramdisk=8192
> Error reading tod clock
> Calibrating delay loop... 49.76 BogoMIPS
> Memory: 62044k available
> Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
> Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
> Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
> Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
> POSIX conformance testing by UNIFIX
> ASP version 1 at 0xf0800000 found.
> LED (ASP-style) display at f0800020 registered
> Found HIL at 0xf0821000, IRQ 94
> HIL: timed out, assuming no keyboard present.
> Warning : device (10, 0x6, 0x0, 0x73, 0x0) NOT claimed by HIL 712, 715
> or similiar
> Found i82596 at 0xf0826000, IRQ 87
> early initialization of device eth0 is deferred
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Starting kswapd v1.8
> pty: 256 Unix98 ptys configured
> lp: driver loaded but no devices found
> RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
> 82596.c: MAC of HP700 LAN blindely read from the prom!
> eth0: Couldn't get consistent shared memory
> eth0: 82596 at 0xf0826000, 08 00 09 8C CD 84 IRQ 87.
> 82596.c $Revision: 1.17 $
> Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ
> SERIAL_PCI enabled
> ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
> ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
> Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
> parport_init_chip: enhanced parport-modes not supported.
> parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
> lp0: using parport0 (interrupt-driven).
> SCSI subsystem driver Revision: 1.00
> sim700: Couldn't get consistent shared memory
> sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
> scsi0: Revision 0x0
> Post test1, istat 05, sstat0 00, dstat 84
> sim700: WARNING IRQ probe failed, (returned 0)
> scsi0: WARNING: target data areas are not dma coherent!
> scsi0: test 1 completed ok.
> scsi0 : LASI/Simple 53c7xx
> scsi0: Unable to abort command for target 0
> scsi0: Unable to send Bus Device Reset for target 0
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: could not halt NCR chip, stage 0
> scsi0: Unable to abort command for target 1
> scsi0: Unable to send Bus Device Reset for target 1
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: could not halt NCR chip, stage 0
> scsi0: Unable to abort command for target 2
> scsi0: Unable to send Bus Device Reset for target 2
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: could not halt NCR chip, stage 0
> scsi0: Unable to abort command for target 3
> scsi0: Unable to send Bus Device Reset for target 3
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: could not halt NCR chip, stage 0
> scsi0: Unable to abort command for target 4
> scsi0: Unable to send Bus Device Reset for target 4
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: could not halt NCR chip, stage 0
> scsi0: Unable to abort command for target 5
> scsi0: Unable to send Bus Device Reset for target 5
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: could not halt NCR chip, stage 0
> scsi0: Unable to abort command for target 6
> scsi0: Unable to send Bus Device Reset for target 6
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: could not halt NCR chip, stage 0
> linear personality registered
> raid0 personality registered
> raid1 personality registered
> raid5 personality registered
> raid5: measuring checksumming speed
>  8regs          :    34.671 MB/sec
>  8regs_prefetch :    40.767 MB/sec
>  32regs         :    32.004 MB/sec
>  32regs_prefetch:    41.148 MB/sec
> raid5: using function: 32regs_prefetch (41.148 MB/sec)
> md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
> md.c: sizeof(mdp_super_t) = 4096
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 4096 bind 4096)
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> VFS: Cannot open root device "scd0" or 0b:00
> Please append a correct "root=" boot option
> Kernel panic: VFS: Unable to mount root fs on 0b:00
> 
> 
> 
> --
>         Jan Heumann
> 
>   .~.
>   /V\
> /( : )\
>  ^^ ^^
> 
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 
> 






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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems booting 712/100 with 0.6 ISO
Date: Fri, 18 May 2001 14:42:50 -0600
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Cc: parisc-linux@lists.parisc-linux.org
To: "Mikkel Lauritsen" <ml@Catalog-international.com>
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Fri May 18 14:49:51 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:11074

"Mikkel Lauritsen" wrote:
> > If the disk is bootable it should show up.
> 
> It does. What I'm wondering is if the rather old CD-drive that I'm
> using is somehow unsupported when it comes to booting from it. As I
> mentioned, the original HP drive (which is really a Toshiba 5701)
> doesn't grok the CD, so I'm using another drive instead.

Ok. Some PDC implementations have problems with SCSI devices
that initiate SDTR or WDTR negotiation or don't auto-spin up.
It's called "Target Initiated Negotiations" in the IBM literature
I recently looked at.
Check the jumpers on the device with a product manual in hand.

> > Oh and what Firmware rev do you have on the 712/100?
> > (hint: FAQ at www.parisc-linux.org explains PDC updates)
> 
> 2.3, which would appear to be the newest, judging from the list at
> HP.

Yes it is.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: [parisc-linux] [PATCH] IRQ cycle counts
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Hi!

The patch basically enables one to see min/avg/max cycle counts for the
256 most recent invocations for a given Interrupt handler. See the
sample output at the bottom.

The goal of dumping the min/avg/max cycle counts is two fold:
a) measure CPU IRQ load and later for IRQ "load" balancing.
   Unlike x86 or IA64, on SMP PARISC boxes the IRQ gets processed
   on the same CPU once the IRQ handling is initialized.
   More on this below.

b) Device Driver writers can precisely determine if changes are helping
  or hurting IRQ performance at a low level.  I.E. they can tune their
  code to have fewer branches, cachline misses, PIO (eg inb()) and see
  the results easily. This type of tuning helps all arches.

I'm posting this patch here (vs pairsc-linux-cvs) for discussion to
resolve several issues that I didn't feel I have good answers for:

1) Should this always be enabled? Or only via CONFIG_PARISC_IRQ_CYCLE_COUNTS?
   This is critical only because I have a change in an arch generic file.
   (include/linux/interrupt.h) I believe this instrumentation is very
   "light weight" - but it's optional and irrelevant to most users.
   And I don't know which other arches have similar cycle counting
   functionality.

2) How should CONFIG_SMP change the output?

   CONFIG_SMP changes the /proc/interrupts output to show "per CPU" IRQ
   counts (not cycle counts).  However, unlike x86 or IA64, PARISC arch
   always points the IRQ to the same CPU once it's initialized (under SW
   control, it could be moved later but we haven't implemented that yet).
   The IRQ load can *only* be distributed by assigning different "agents"
   (eg IO Sapic input IRQ line) to a different CPU (see bug #57).  In short,
   only one CPU will have a non-zero count.

   We could use the space for min/avg/max cycle counts. But I don't know
   if user tools consume /proc/interrupts directly for munging and if output
   is "architected".  Thoughts on that?

   Oh - and the CONFIG_SMP output format doesn't "scale" well beyond
   4 or so CPUs on an 80char wide xterm since it tries to put it all on
   one line. I could make the xterm wider but eventually we hit a limit.

2) How to display shared IRQ line data for both sym53c8xx handlers?
   Sample output below only shows the first one (I think) for IRQ #130.
   Data for both handlers is collected.

3) Format of /proc/interrupts : "%6d/%6d/%6d" for min/avg/max ok?
   I'm not too happy with "%6d/" stuff and looking for better ideas.

   Note that /proc/interrupt looks different for systems with
   Dino (GSCtoPCI) or GSC devices (eg Zalon SCSI). There are fewer
   entries in the "PA-CPU-00" "level".

   I made the exist format by modeling it after x86 as best I could.
   min/avg/max cycle counts really break that.


thanks,
grant

------------ Sample output (taken from A500 running my patch) -----------

[ The patch has a "bug" in that it counts *all* entrys in
the history buffer (256 entries) instead of just the non-zero ones.
I'll fix that. I just wanted to get the "output format" discussion
started. ]

grundler@gsyprf11:~$ cat /proc/interrupts 
            IRQ count 
 64:    5600708    660/   740/  6304       PA-CPU-00  timer
 65:     272044   3285/  5102/ 24355       PA-CPU-00  IO-SAPIC00-L0
 66:         30      0/   709/  6707       PA-CPU-00  IO-SAPIC00-L1
 67:          0      0/     0/     0       PA-CPU-00  IO-SAPIC00-L2
 68:         60      0/  1640/ 18089       PA-CPU-00  IO-SAPIC00-L2
 69:      19320   4114/  9050/ 33202       PA-CPU-00  IO-SAPIC00-L3
 70:         10      0/   439/ 14382       PA-CPU-00  IO-SAPIC00-L4
 71:          0      0/     0/     0       PA-CPU-00  IO-SAPIC00-L5
 72:          0      0/     0/     0       PA-CPU-00  IO-SAPIC01-L0
 73:        315   5957/  6768/ 12509       PA-CPU-00  IO-SAPIC02-L0
 74:          0      0/     0/     0       PA-CPU-00  IO-SAPIC02-L1
 75:          0      0/     0/     0       PA-CPU-00  IO-SAPIC02-L2
 76:          0      0/     0/     0       PA-CPU-00  IO-SAPIC02-L3
 77:         70      0/1924923/65678155       PA-CPU-00  IO-SAPIC03-L0
 78:         30      0/   693/  8152       PA-CPU-00  IO-SAPIC03-L1
128:     272044   3193/  4879/ 21878      IO-SAPIC00  eth0
129:         30      0/   698/  6517      IO-SAPIC00  sym53c8xx
130:         60      0/   824/ 16161      IO-SAPIC00  sym53c8xx, sym53c8xx
131:      19320   4030/  8649/ 30999      IO-SAPIC00  sym53c8xx
132:         10      0/   432/ 13772      IO-SAPIC00  serial
256:        315   5758/  6382/ 11331      IO-SAPIC02  eth1
320:         70      0/1924884/65678065      IO-SAPIC03  sym53c8xx
321:         30      0/   679/  7302      IO-SAPIC03  sym53c8xx



Index: include/linux/interrupt.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/linux/interrupt.h,v
retrieving revision 1.5
diff -u -p -r1.5 interrupt.h
--- interrupt.h	2000/08/18 01:53:14	1.5
+++ interrupt.h	2001/05/19 07:12:33
@@ -18,6 +18,14 @@ struct irqaction {
 	const char *name;
 	void *dev_id;
 	struct irqaction *next;
+
+/* HACK: ggg PARISC_IRQ_CR16_COUNTS in arch/parisc/kernel/irq.c */
+#ifdef __hppa__
+#define PARISC_CR16_HIST_SIZE	256
+	/* Only store the delta here - would otherwise need to be long */
+	unsigned int cr16_hist[PARISC_CR16_HIST_SIZE];	/* for avging */
+	unsigned int cr16_idx;
+#endif
 };
 
 
Index: arch/parisc/kernel/irq.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/irq.c,v
retrieving revision 1.38
diff -u -p -r1.38 irq.c
--- irq.c	2001/03/31 07:40:10	1.38
+++ irq.c	2001/05/19 07:12:33
@@ -42,6 +42,7 @@
 #include <asm/cache.h>
 
 #undef DEBUG_IRQ
+#define PARISC_IRQ_CR16_COUNTS
 
 extern void timer_interrupt(int, void *, struct pt_regs *);
 #ifdef CONFIG_SMP
@@ -205,6 +206,24 @@ int get_irq_list(char *buf)
 		    p += sprintf(p, "%10u ",
 			    kstat.irqs[cpu_logical_map(j)][irq_no]);
 #endif
+
+#ifdef PARISC_IRQ_CR16_COUNTS
+		/* min/avg/max of cr16_hist[] */
+		{
+			unsigned int i = 0, avg = 0, min, max;
+
+		        min = max = action->cr16_hist[0];
+
+			for (i = 0; i < PARISC_CR16_HIST_SIZE; i++) {
+				avg += action->cr16_hist[i];
+				if (action->cr16_hist[i] > max) max = action->cr16_hist[i];
+				if (action->cr16_hist[i] < min) min = action->cr16_hist[i];
+			}
+
+			avg /= PARISC_CR16_HIST_SIZE;
+			p += sprintf(p, "%6d/%6d/%6d ", min,avg,max);
+		}
+#endif
 		p += sprintf(p, " %14s",
 			    region->data.name ? region->data.name : "N/A");
 		p += sprintf(p, "  %s", action->name);
@@ -330,7 +349,22 @@ void do_irq(struct irqaction *action, in
 		printk(KERN_ERR "IRQ:  CPU:%d No handler for IRQ %d !\n", cpu, irq);
 
 	for(; action && action->handler; action = action->next) {
+#ifdef PARISC_IRQ_CR16_COUNTS
+		unsigned long cr_start = mfctl(16);
+#endif
+
 		action->handler(irq, action->dev_id, regs);
+
+#ifdef PARISC_IRQ_CR16_COUNTS
+		{
+			unsigned long cr_end = mfctl(16);
+			unsigned long tmp = cr_end - cr_start;
+			/* check for roll over */
+			cr_start = (cr_end < cr_start) ?  -(tmp) : (tmp);
+		}
+		action->cr16_hist[action->cr16_idx++] = (int) cr_start;
+		action->cr16_idx &= PARISC_CR16_HIST_SIZE - 1;
+#endif
 	}
 
 	irq_exit(cpu, irq);




From - Thu Nov 08 21:17:39 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc 2.2.3 make check status
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The list is getting shorter, and I believe we don't have any regressions
versus glibc 2.2.1 at this point.  Don't install the glibc 2.2.3 we have
in CVS, by the way.  It is missing necessary patches which are errata to
glibc 2.2.3.  These patches are not installed in our CVS tree to reduce
the amount of work when generating a new diff for the debian package.

I'd really appreciate some help with either of the problems in the
Misc section.

Floating-point
--------------

 * Some of the math/ tests fail in the same way they did with glibc-2.2.1.
 * stdlib/strtold fails.  This is due to our long double being 64 bit and
   glibc thinks its 128 bit.  Bug #119
 * misc/tst-efgcvt fails.  (Maybe another long double problem?)

Threads
-------

 * linuxthreads/ex15 fails sometimes.  I'm working on it.  (probable
 kernel bug)

Dynamic Loading
---------------

 * dlfcn/default fails.  Not sure whether the test is making an
   unwarranted assumption here or whether we have a bug.
 * The following tests in the elf/ directory fail:
	resolvfail constload1 vismain neededtest neededtest2
	neededtest3 neededtest4 lateglobal
   Not investigated.  Probably most of these are the same bug.

Misc
----

 * posix/globtest fails.  Haven't investigated.
 * gmon/tst-sprofil fails.  Looks like it needs to be ported to Linux/hppa.

-- 
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] elf/resolvfail
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Here's what resolvfail does:

static const char obj[] = "testobj1.so";

int main (void) {
  void *d = dlopen (obj, RTLD_LAZY);
  int n;

  if (d == NULL) {
      printf ("cannot load %s: %s\n", obj, dlerror ());
      return 1;
  }
[...]

and it outputs:

cannot load testobj1.so: /home/willy/cvs/glibc-C/elf/testobj1.so: undefined symbol: foo

nm testobj1.so:
                 U foo

but i would have throught that RTLD_LAZY would mean that it didn't have to
resolve foo immediately, only when it was used.  Can someone explain what's
supposed to happen here?

-- 
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From: Ulrich Drepper <drepper@redhat.com>
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Matthew Wilcox <matthew@wil.cx> writes:

> but i would have throught that RTLD_LAZY would mean that it didn't have to
> resolve foo immediately, only when it was used.  Can someone explain what's
> supposed to happen here?

Get a box with a working glibc and run

  LD_DEBUG=all /build/dir/elf/ld.so --library-path /build/dir:/build/dir/dlfcn /build/dir/elf/resolvfail


on both.  The output LD_DEBUG provides should help you.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------




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Subject: [parisc-linux] The ioctl pain may be going away...
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There's a lovely little thread going on on linux-fsdevel right now about
the future of ioctl.  I think Paul, for one, will be particularly pleased
to see this message.

----- Forwarded message from Linus Torvalds <torvalds@transmeta.com> -----

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To: Alexander Viro <viro@math.psu.edu>
cc: Matthew Wilcox <matthew@wil.cx>, David Woodhouse <dwmw2@infradead.org>,
   Richard Gooch <rgooch@ras.ucalgary.ca>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
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Subject: Re: [RFD w/info-PATCH] device arguments from lookup, partion code
In-Reply-To: <Pine.GSO.4.21.0105201523370.8940-100000@weyl.math.psu.edu>


On Sun, 20 May 2001, Alexander Viro wrote:
> 
> On Sun, 20 May 2001, Matthew Wilcox wrote:
> 
> > On Sun, May 20, 2001 at 03:11:53PM -0400, Alexander Viro wrote:
> > > Pheeew... Could you spell "about megabyte of stuff in ioctl.c"?
> > 
> > No.
> > 
> > $ ls -l arch/*/kernel/ioctl32*.c
> > -rw-r--r--    1 willy    willy       22479 Jan 24 16:59 arch/mips64/kernel/ioctl32.c
> > -rw-r--r--    1 willy    willy      109475 May 18 16:39 arch/parisc/kernel/ioctl32.c
> > -rw-r--r--    1 willy    willy      117605 Feb  1 20:35 arch/sparc64/kernel/ioctl32.c
> > 
> > only about 100k.
> 
> You are missing all x86-only drivers.

Now, the point is that it _is_ doable, and by doing it in one standard
place (instead of letting each architecture fight it on its own) we'd
expose the problem better, and maybe get rid of some of those
architecture-specific ones.

For example, right now the fact that part of the work _has_ been done by
things like Sparc64 has not actually had any advantages: the sparc64 work
has not allowed people to say "let's try to merge this work", because it
has not been globally relevant, and a sparc64-only file has not been a
single point of contact that could be used to clean up things.

In contrast, a generic file has the possibility of creating new VFS or
device-level interfaces. You can catch block device ioctl's and turn them
into proper block device requests - and send them down the right request
queue. Suddenly a block device driver doesn't just get READ/WRITE
requests, it gets EJECT/SERIALIZE requests too. Without having to add
magic ioctl's that are specific to just one device driver. 

So by having a common point of access, you can actually encourage _fixing_
some of the problems. Historically, sparc64 etc have not been able to do
that - they can only try to convert different ioctl's into another format
and then re-submitting it..

		Linus


----- End forwarded message -----

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:17:39 2018
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From: Tom Hansen <tomh@execpc.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problems booting .61 ISO on 715/75
Date: Sun, 20 May 2001 21:35:01 -0500
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I have just downloaded the 0.61 ISO:

    palinux-0.6-32STI.iso.gz

from the HP site, burned a CD, and booted from the CD on my 715/75 Apollo, 
160MB, Toshiba 5701 CD-ROM. I'm using the built-in console, I don't have a 
serial console.

After what appears to be a successful start to the boot sequence (it 
identifies devices OK, etc.) it gets as far as the line:

    Console: colour dummy device 80x25

After this line is displayed, the CD is accessed for about 2 or 3 more 
seconds, after which everything stops.

Any ideas?


--
Tom Hansen
tomh@execpc.com





From - Thu Nov 08 21:17:39 2018
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From: "Bright, Stephen" <Stephen.Bright@thales-esecurity.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Booting from SCSI disk.
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Thanks Matthew, you were right I was using the lifimage.  Switched to the
vmlinux, rerun palo natively, and everything worked.  Now just need to find
out why the ethernet interface is not coming up too.

Thanks to everyone who replied.

-- 
Steve

> -----Original Message-----
> From: Matthew Wilcox [mailto:matthew@wil.cx]
> Sent: 17 May 2001 16:04
> To: Bright, Stephen
> Cc: 'parisc-linux@lists.parisc-linux.org'
> Subject: Re: [parisc-linux] Booting from SCSI disk.
> 
> 
> On Thu, May 17, 2001 at 11:32:35AM +0100, Bright, Stephen wrote:
> > Is it not possible to run fdisk and palo on the HP itself?
> 
> Yes, it is, i've done it.
> 
> > I have tried
> > this, but when it boots I get a message along the lines of 
> "Cannot grok the
> > kernel executable" (sorry, this is quoted from memory, so 
> may not be exactly
> > correct).
> 
> i bet you're using the lifimage instead of the vmlinuz.  
> paul, would it
> be feasible to check for this and print a more helpful error 
> message in
> this instance?
> 
> -- 
> Revolutions do not require corporate support.
> 




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On Sun, May 20, 2001 at 05:22:42AM +0100, Matthew Wilcox wrote:
> 
> but i would have throught that RTLD_LAZY would mean that it didn't have to
> resolve foo immediately, only when it was used.  Can someone explain what's
> supposed to happen here?

What type is foo?  Lazy linking only works for .plt entries, ie. functions.

Alan





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On Mon, May 21, 2001 at 10:00:03PM +0930, amodra@one.net.au wrote:
> On Sun, May 20, 2001 at 05:22:42AM +0100, Matthew Wilcox wrote:
> > 
> > but i would have throught that RTLD_LAZY would mean that it didn't have to
> > resolve foo immediately, only when it was used.  Can someone explain what's
> > supposed to happen here?
> 
> What type is foo?  Lazy linking only works for .plt entries, ie. functions.

extern int foo (int);

int
obj1func2 (int a)
{
  return foo (a) + 10;
}

18077:  find library=testobj1.so; searching
18077:   search path=/home/willy/cvs/glibc-C:/home/willy/cvs/glibc-C/math:/home/willy/cvs/glibc-C/elf:/home/willy/cvs/glibc-C/dlfcn:/home/willy/cvs/glibc-C/nss:/home/willy/cvs/glibc-C/nis:/home/willy/cvs/glibc-C/rt:/home/willy/cvs/glibc-C/resolv:/home/willy/cvs/glibc-C/crypt:/home/willy/cvs/glibc-C/linuxthreads
        (LD_LIBRARY_PATH)
18077:    trying file=/home/willy/cvs/glibc-C/testobj1.so
18077:    trying file=/home/willy/cvs/glibc-C/math/testobj1.so
18077:    trying file=/home/willy/cvs/glibc-C/elf/testobj1.so
18077:
18077:  file=testobj1.so;  generating link map
18077:    dynamic: 0x40198cd8  base: 0x40188000   size: 0x00010d90
18077:      entry: 0x401887bc  phdr: 0x40188034  phnum:          4
18077:
18077:  checking for version `GLIBC_2.2' in file /home/willy/cvs/glibc-C/libc.so.6 required by file /home/willy/cvs/glibc-C/elf/testobj1.so
18077:  checking for version `GLIBC_2.0' in file /home/willy/cvs/glibc-C/dlfcn/libdl.so.2 required by file /home/willy/cvs/glibc-C/elf/testobj1.so
[...]

18077:  symbol=dlsym;  lookup in file=/home/willy/cvs/glibc-C/elf/resolvfail
18077:  symbol=dlsym;  lookup in file=/home/willy/cvs/glibc-C/dlfcn/libdl.so.2
18077:  binding file /home/willy/cvs/glibc-C/elf/testobj1.so to /home/willy/cvs/glibc-C/dlfcn/libdl.so.2: normal symbol `dlsym' [GLIBC_2.0]
18077:  symbol=__deregister_frame_info;  lookup in file=/home/willy/cvs/glibc-C/
elf/resolvfail
18077:  symbol=__deregister_frame_info;  lookup in file=/home/willy/cvs/glibc-C/
dlfcn/libdl.so.2
18077:  symbol=__deregister_frame_info;  lookup in file=/home/willy/cvs/glibc-C/
linuxthreads/libpthread.so.0
18077:  symbol=__deregister_frame_info;  lookup in file=/home/willy/cvs/glibc-C/
libc.so.6
18077:  symbol=__deregister_frame_info;  lookup in file=/home/willy/cvs/glibc-C/
elf/ld.so.1
18077:  symbol=__deregister_frame_info;  lookup in file=/home/willy/cvs/glibc-C/
elf/testobj1.so
18077:  symbol=__deregister_frame_info;  lookup in file=/home/willy/cvs/glibc-C/
dlfcn/libdl.so.2
18077:  symbol=__deregister_frame_info;  lookup in file=/home/willy/cvs/glibc-C/
libc.so.6
18077:  symbol=__deregister_frame_info;  lookup in file=/home/willy/cvs/glibc-C/
elf/ld.so.1
18077:  symbol=foo;  lookup in file=/home/willy/cvs/glibc-C/elf/resolvfail
18077:  symbol=foo;  lookup in file=/home/willy/cvs/glibc-C/dlfcn/libdl.so.2
18077:  symbol=foo;  lookup in file=/home/willy/cvs/glibc-C/linuxthreads/libpthr
ead.so.0
18077:  symbol=foo;  lookup in file=/home/willy/cvs/glibc-C/libc.so.6
18077:  symbol=foo;  lookup in file=/home/willy/cvs/glibc-C/elf/ld.so.1
18077:  symbol=foo;  lookup in file=/home/willy/cvs/glibc-C/elf/testobj1.so
18077:  symbol=foo;  lookup in file=/home/willy/cvs/glibc-C/dlfcn/libdl.so.2
18077:  symbol=foo;  lookup in file=/home/willy/cvs/glibc-C/libc.so.6
18077:  symbol=foo;  lookup in file=/home/willy/cvs/glibc-C/elf/ld.so.1
18077:
18077:  calling fini: /home/willy/cvs/glibc-C/dlfcn/libdl.so.2

On x86, it never tries to look up `foo' at all.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:17:40 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] More unaligned references
Date: Mon, 21 May 2001 22:50:06 +0100
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To: parisc-linux@parisc-linux.org
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This is in apache-ssl.

$ gdb ./apache 
This GDB was configured as "hppa2.0-unknown-linux-gnu"...
(gdb) run
Starting program: /home/willy/test/apache-ssl-1.3.19.1+1.42/build-tree/apache_1.3.19/src/./apache 

Program received signal SIGBUS, Bus error.
0x00020224 in Letext ()
(gdb) bt
#0  0x00020224 in Letext ()
#1  0x0001cf40 in create_server_config (p=0x85040, s=0x85068)
    at http_config.c:186
#2  0x0001f444 in init_server_config (p=0x85040) at http_config.c:1625
#3  0x0001f518 in ap_read_config (p=0x85040, ptemp=0x89080, 
    confname=0x7c97c "/etc/apache-ssl/httpd.conf") at http_config.c:1657
#4  0x00029be0 in main (argc=1, argv=0x7ff00258) at http_main.c:5114

(gdb) x/12i $pc-20
0x20210 <Letext+1552>:  addil 4800,dp,%r1
0x20214 <Letext+1556>:  ldw 154(sr0,r1),r21
0x20218 <Letext+1560>:  bv r0(r21)
0x2021c <Letext+1564>:  ldw 158(sr0,r1),r19
0x20220 <Letext+1568>:  addil 4800,dp,%r1
0x20224 <Letext+1572>:  ldw fb(sr0,r1),r21
0x20228 <Letext+1576>:  bv r0(r21)
0x2022c <Letext+1580>:  ldw ff(sr0,r1),r19
0x20230 <Letext+1584>:  addil 4800,dp,%r1
0x20234 <Letext+1588>:  ldw 21c(sr0,r1),r21
0x20238 <Letext+1592>:  bv r0(r21)
0x2023c <Letext+1596>:  ldw 220(sr0,r1),r19

so we seem to be in the middle of a jump table here.

init_server_config looks like this, btw:

static void *create_server_config(pool *p, server_rec *s)
{
    void **conf_vector = (void **) ap_pcalloc(p, sizeof(void *) * (total_modules
 + DYNAMIC_MODULE_LIMIT));
    module *modp;

    for (modp = top_module; modp; modp = modp->next) {
        if (modp->create_server_config)
            conf_vector[modp->module_index] = (*modp->create_server_config) (p, 
s);
    }

    return (void *) conf_vector;
}

Which fits the jump table explanation.  So something's getting trashed
and I really don't know where.  This is with matt's newcompilers-20010520
debs; binutils 2.11.90.0.8 plus modra's patch, gcc 3.0.ds5-0pre010427
with an hppa patch and glibc 2.2.3-2 with an hppa patch.  fwiw, the same
problem happened with binutils 2.11.90.0.1 from the baseplus-0404 tarball.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:17:40 2018
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From: Paul Bame <bame@riverrock.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] More unaligned references
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   of "Mon, 21 May 2001 22:50:06 BST." <20010521225006.I23718@parcelfarce.linux.theplanet.co.uk> 
Xref: news.gmane.org gmane.linux.ports.parisc:11085

> 0x20220 <Letext+1568>:  addil 4800,dp,%r1
> 0x20224 <Letext+1572>:  ldw fb(sr0,r1),r21
> 0x20228 <Letext+1576>:  bv r0(r21)

FYI in case others run across it, this was discovered to be the ".plt-1" bug.
To find out, use 'objdump -h' to figure out where .plt is loaded.  Then add
0x4800 plus 0xfb plus the dp register (r27).  If that's .plt-1 you've found
the bug which is/should-be squashed in recent bits.

	-P







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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] More unaligned references
Date: Mon, 21 May 2001 23:40:50 +0100
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Cc: Matthew Wilcox <matthew@wil.cx>, parisc-linux@parisc-linux.org,
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To: Paul Bame <bame@riverrock.org>
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On Mon, May 21, 2001 at 04:27:07PM -0600, Paul Bame wrote:
> FYI in case others run across it, this was discovered to be the ".plt-1" bug.
> To find out, use 'objdump -h' to figure out where .plt is loaded.  Then add
> 0x4800 plus 0xfb plus the dp register (r27).  If that's .plt-1 you've found
> the bug which is/should-be squashed in recent bits.

Not convinced.  Yes, this is in fact .plt-1.  However, that bug is
supposed to be both fixed in this version of binutils and an assert
added to catch it happening.  However, no assert is being tripped.
FWIW, the offending caller is:

     1d0:       eb e0 00 00     b,l 1d8 <create_server_config+0x5c>,r31
                        1d0: R_PARISC_PCREL17F  $$dyncall


-- 
Revolutions do not require corporate support.




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From: amodra@one.net.au
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Subject: Re: [parisc-linux] More unaligned references
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In-Reply-To: <20010521234050.J23718@parcelfarce.linux.theplanet.co.uk>; from matthew@wil.cx on Mon, May 21, 2001 at 11:40:50PM +0100
Xref: news.gmane.org gmane.linux.ports.parisc:11087

On Mon, May 21, 2001 at 11:40:50PM +0100, Matthew Wilcox wrote:
> On Mon, May 21, 2001 at 04:27:07PM -0600, Paul Bame wrote:
> > FYI in case others run across it, this was discovered to be the ".plt-1" bug.
> > To find out, use 'objdump -h' to figure out where .plt is loaded.  Then add
> > 0x4800 plus 0xfb plus the dp register (r27).  If that's .plt-1 you've found
> > the bug which is/should-be squashed in recent bits.
> 
> Not convinced.  Yes, this is in fact .plt-1.  However, that bug is
> supposed to be both fixed in this version of binutils and an assert
> added to catch it happening.  However, no assert is being tripped.
> FWIW, the offending caller is:
> 
>      1d0:       eb e0 00 00     b,l 1d8 <create_server_config+0x5c>,r31
>                         1d0: R_PARISC_PCREL17F  $$dyncall

A shared library created with the "bad" binutils exports millicode syms it
isn't supposed to, which the linker later rejects, resulting in .plt-1
references.  The assert should still have triggered...

A quick check whether a library is good is:
nm --dynamic <lib> | grep '\$\$'

This will show exported millicode syms since they start with '$$'.

Alan





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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] kernel panic
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--rwEMma7ioTxnRzrJ
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Hello parisc-linux hackers,

Ok ... I have been beating my head against the wall on this problem
for a while now, so I am going to post the problem to the list and
see if it generates some thoughts on how to debug/fix this problem.

Currently there is a problem with the cpio cdrom -> disk under
ccio.  I reverted the ccio-dma driver back to a previous version 
(before the coleascing of the scatter/gather lists) and re-tested
the cpio cdrom -> disk.  This works ... so I'm fairly certian the
bug is in the ccio code :(

The start debugging the code I added in the debugging routines to
allow me to see the output of the scatter/gather support and it
panic with a code 15 or code 26 pretty consistently.   I have 
traced the problem down simpily adding printk's into the 
ccio_map_sg and/or ccio_unmap_sg functions.  If I add any printk 
(with or without variables) .... it will crash .... if I remove the 
printk's the mke2fs will finish and work fine. [NOTE: this is what
I have reduced the test case to.  I have not tested if printk's 
in other portions of the code also cause the kernel to panic
or not.]

I have been applying my limited knowledge on how to track down 
these crashes, but my limited knowledge does not appear to be enough :(

Here is what I have have/know so far...

1. Every time the kernel crashes .... GR2 and IAOQ appear to be
in a signal type function.  In this crash:
	GR2: rm_sig_from_queue
	IAOQ: rm_from_queue

in a previous crash (code 15):
	GR2: send_signal
	IAOQ: send_signal

in another previous crash (code 26):
	GR2: ignored_signal
	IAOQ: signal_type

etc, etc.....

2. The kernel is pretty much CVS head with a few, slight
modifications.

3. Here is the ccio_map_sg function:
static int 
ccio_map_sg(struct pci_dev *dev, struct scatterlist *sglist, int nents, int direction)
{
	int tmp = nents;
	int filled = 0;

	printk("%s() START %d entries\n", __FUNCTION__, nents);

        /* KISS: map each buffer seperately. */
	while(nents) {
		sg_dma_address(sglist) = ccio_map_single(dev, sglist->address, sglist->length, direction);
		sg_dma_len(sglist) = sglist->length;
		nents--;
		sglist++;
		++filled;
	}

	printk("%s() DONE %d mappings\n", __FUNCTION__, filled);
	return tmp;
}

4. Here is the console output from the latest crash. (I have attached
the System.map for anyone interested in looking at that also).

Last login: Thu May 17 18:05:32 2001 on ttyS0
Linux vega 2.4.0 #1 Mon May 21 19:51:17 MDT 2001 parisc unknown
vega:~# mke2fs /dev/sdb3
mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
505920 inodes, 1011165 blocks
50558 blocks (5.00%) reserved for the super user
First data block=0
31 block groups
32768 blocks per group, 32768 fragments per group
16320 inodes per group
Superblock backups stored on blocks: 
	32768, 98304, 163840, 229376, 294912, 819200, 884736

Writing inode tables: done                            
Writing superblocks and filesystem accounting ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
information: ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 56 entries
ccio_map_sg() DONE 56 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings

Dumping Stack from 3f2b0000 to 3f2b0840:
0000 100ef3c0 10fe8380 3feb3e40 3fbf0c00 00000060 b0ea9875 00a0cc7b c94a0800
0020 450005dc b7f06000 0000ffff 101adcf0 00000000 100ef3c0 10fe8380 3feb3e40
0040 0004ff0f 1029a810 101adcf0 0000000f 100ef3c0 3fbf0c00 00000000 00000000
0060 1029b6d0 0000ffff 10fe8398 00000001 3f2af980 001e8480 00027630 00058260
0080 3f2af980 0000ffff 00000001 00000000 00000000 100e5298 98090009 100e3800
00a0 fffffb10 f2ffd014 100e6000 10274010 00000000 00000040 3f2b0280 101184dc
00c0 08000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00e0 0000000a fe4917e0 2c760000 84cda718 00000001 bc9c0000 f9abb0d5 f309b5b9
0100 0000000a c0b4e852 102dc000 00000000 1028e064 102f9010 102fc010 10274010
0120 102f8810 00000001 10292010 1013848c 102f8810 102d98a8 102d98a8 102d9820
0140 3fbb5000 1028e60c 00000000 00000002 00000000 102a46c0 0004000e 0000004d
0160 102f9010 3fbb5000 1028e60c 10149de4 00000000 00001000 00000000 00000000
0180 00000000 00000000 3fe00000 00000000 412e8480 00000000 00000000 0000004d
01a0 ffffffff 102fc010 10274010 101385f4 3fbed400 1028cee0 10292010 102f9010
01c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
01e0 00000000 00000000 101adcf4 101adcf8 7f2bb706 00000000 34140002 0cf41240
0200 e81f1ccd 0000001f e81f1f7d 0b04041a 00000011 00000040 10252004 10252028
0220 e85d14b1 34423ee9 0806025a 1011113c e85f147d 34180000 081c0243 84603f15
0240 3f2af980 00058260 00027630 001e8480 3f2af980 1029a810 100e3cc0 10fe9800
0260 10252000 00000001 00000040 101064f8 00000000 100eeb00 4b590030 0aa4041a
0280 3f2af980 00000001 10fe8398 0000ffff 1029b6d0 00000000 00000000 3fbf0c00
02a0 100ef3c0 0000000f 6bc43f19 10118518 6bc33f21 84802018 6bd33fc1 48b40028
02c0 00000000 10289534 10289534 0000000e 0000001f 0000003c 0000003e 10289010
02e0 00000001 102e3622 00000004 10102f60 0000001e 102e3622 0814025c 0ca8109a
0300 80000000 00000000 00000001 00000020 889483aa e85d1401 08040258 341c0000
0320 87802150 08060253 0ca8109a 10102e50 8895a010 08130243 0f581094 889480fa
0340 34190002 e85d13a1 34360258 0cb0109a 87402088 08030253 0f501098 8898a050
0360 08130243 0f581094 8094803a 10102850 e85d11a9 0b04041a 08030253 84e0219a
0380 0ce01240 e81f1e8d 341c0000 08040258 00000020 00000000 10273904 3f2b0349
03a0 00000001 0000ffff 3f2af980 1011edb0 0000000e 001e8480 3f2af980 1029a810
03c0 102f9010 3f2b0040 00000020 10276060 ffffffff 3f2b0214 102e3616 1025200f
03e0 08130243 0f581094 889481da 1011e938 e85d1249 08040258 341c0000 87803d8d
0400 00000000 00000001 3f2b0000 e85f10c5 34180000 081c0243 84603d55 08060253
0420 0c681055 86a03d3d d69f1810 1011e880 0c741248 d2941bf0 868220c2 0c681054
0440 86802022 84e0200a 0c681054 0cf41240 e81f1cf5 341c0000 0c30109a 87403fc5
0460 08000240 0f501098 8898a010 10120104 0f581094 88948022 08040258 e85d1131
0480 00000001 00000001 00000000 3f2b0000 01c5cbe9 0b04041a e81f1f4d 08050253
04a0 0ca8109a 0f501095 8895a010 34190000 0f581094 8894801a e85d10b9 08040258
04c0 e81f1eed 08060253 4b590030 e85d0e89 0aa4041a e81f1ec5 08060253 4b590030
04e0 0aa4041a e85d0f29 34423e21 1011fd44 0aa4041a e85d0f09 34423c49 08000240
0500 00000009 6fc60080 081a0246 6bc53f89 08130245 6bc43f91 d3041bf0 6bc33f99
0520 08190243 84602018 6bd33fc1 1011fa88 88748040 229dafe4 239dafe4 379c0e8e
0540 4bc23f59 4bc53f89 4bc43f91 4bc33f99 e840c000 4fc63f81 0cc01095 36940e1a
0560 8ab43fb5 0814025c 8482221a 1011f7f4 e85f0dfd 34180002 878020e0 08050253
0580 00000001 0000000e 00000000 3f2b0000 3f2b0000 0f581094 88748082 e85d0ef1
05a0 08030258 0cd0109a 87402240 08050253 0f501098 8878a010 08130244 0f581094
05c0 88748012 08030258 e80001e8 34190000 4b590030 0b03041a e85d0c71 344201d8
05e0 4b590030 0aa3041a e85d0cb9 34423f69 239dafe4 e81f1e8d 379c0e8c 25c07537
0600 0006fe0e 102f9010 1011f7f4 3f2b0450 102f95d4 3f2b0450 00000018 102e9010
0620 10276384 00000002 10276360 a0000000 3f2b0040 001e8480 00027630 00058260
0640 3f2b0040 0000ffff 00000001 0c30109a e81f1cf5 3f2b0458 00000017 3f2b0100
0660 3f2b0000 3f2b0450 00000018 10274010 00000000 00000014 3f2b0840 1011e860
0680 08000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
06a0 0000000a fe4917e0 2c760000 84cda717 00000001 bc9c0000 f9abb0d5 f309b5b9
06c0 00000009 c0b4e852 102dc000 00000000 1028e064 102f9010 102fc010 10274010
06e0 102f8810 00000001 10292010 1013848c 102f8810 102d98a8 102d98a8 102d9820
0700 3fbb5000 1028e60c 00000000 00000002 00000000 102a46c0 0004000e 0000004d
0720 102f9010 3fbb5000 1028e60c 10149de4 00000000 00001000 00000000 00000000
0740 00000000 00000000 3fe00000 00000000 412e8480 00000000 00000000 0000004d
0760 ffffffff 102fc010 10274010 101385f4 3fbed400 1028cee0 10292010 102f9010
0780 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
07a0 00000000 00000000 1011f76c 1011f770 7f2bb706 00000000 a2e30d26 51164c0d
07c0 45c61a4c 00000008 0e881093 00000000 e81f1cf9 885f0ace 2f9cb27a 10c8a0cf
07e0 5f3964f4 2191419e be72c9e8 4322833c 7ce593d0 86450678 f9bd92f2 0cfcb9a3
0800 9da75c88 00000000 00000002 000186a3 00000060 b0ea9875 00a0cc7b c94a0800
0820 450005dc baf06000 4011461a 10106744 0a000005 08010320 106ce28c 9da75c92

Kernel Fault: Code=15 regs=3f2b0600 (Addr=e81f1cf9)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111000001110
r0-3	 00000000 102f9010 1011f7f4 3f2b0450
r4-7	 102f95d4 3f2b0450 00000018 102e9010
r8-11	 10276384 00000002 10276360 a0000000
r12-15	 3f2b0040 001e8480 00027630 00058260
r16-19	 3f2b0040 0000ffff 00000001 0c30109a
r20-23	 e81f1cf5 3f2b0458 00000017 3f2b0100
r24-27	 3f2b0000 3f2b0450 00000018 10274010
r28-31	 00000000 00000014 3f2b0840 1011e860
sr0-3	 00000000 00000000 00000000 00000000
sr4-7	 00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1011f76c 1011f770
 IIR: 0e881093    ISR: 00000000  IOR: e81f1cf9
ORIG_R28: a2e30d26


What I am really interested in is learning what I need to do to debug this
type of crash further ... and of course finding the problem causing the
crash :)

Thanks for your help....


- Ryan
-- 

--rwEMma7ioTxnRzrJ
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="System.map"

10100000 A _text
10100000 T _stext
10100000 T stext
10100020 t $bss_loop
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1019174c t .L1044
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10191914 t gotoxay
10191954 T scrollback
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10191b20 t ri
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10191f64 t csi_X
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101927cc t .L1297
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10192a8c t .L1345
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10192c14 t delete_line
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10192cec t csi_P
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10192e40 t restore_cur
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10193b1c t .L1772
10193b30 t .L1773
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10193b6c t .L1776
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10193c84 t .L1782
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10194078 t .L1792
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10194ad0 t .L1896
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10194f84 t .L1952
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10195258 t con_unthrottle
10195280 t con_stop
10195338 t con_start
101953f0 t con_flush_chars
10195418 t con_open
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101954ac t .L2118
101954c8 t con_close
1019550c t vc_init
10195680 t clear_buffer_attributes
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10195814 t .L2177
1019585c t .L2163
101958b0 t .L2189
101958c4 t .L2190
101958cc t .L2191
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101959dc t vesa_powerdown_screen
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10195ad8 t .L2263
10195b0c t .L2248
10195be4 t .L2251
10195c00 t .L2264
10195c10 T do_blank_screen
10195c10 t .L2265
10195c2c t unblank_screen_t
10195c44 T unblank_screen
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10195d2c t .L2275
10195d30 t blank_screen
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10195db0 t .L2277
10195de0 T set_palette
10195de0 t .L2282
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10196054 T con_set_cmap
10196070 T con_get_cmap
1019608c T reset_palette
10196128 T con_font_op
10196430 T screen_glyph
101964b4 T screen_pos
10196520 T getconsxy
10196548 T putconsxy
1019657c T vcs_scr_readw
101965b4 T vcs_scr_writew
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101965f8 t .L2547
101965f8 t pm_con_request
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10196624 t .L2555
1019662c t .L2556
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101966d4 T sel_loadlut
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101969d8 t .L805
10196b08 t .L864
10196b20 t .L865
10196b4c t .L866
10196b60 t .L867
10196b80 t .L868
10196d98 t .L869
10196da0 t .L870
10196df4 T paste_selection
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10196fb8 t .L692
10196fb8 t serial_out
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1019704c T serial_icr_read
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1019718c t .L713
101971b8 t .L716
101971c4 t .L717
101971c4 t rs_sched_event
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10197598 t transmit_chars
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10197624 t .L786
101976c8 t .L787
101976c8 t check_modem_status
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101977a8 t .L788
101977e4 t .L806
1019780c t .L807
1019780c t rs_interrupt
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10197918 t .L825
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10197be4 t .L865
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10197c64 t enable_rsa
10197ce8 t disable_rsa
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101983b8 t .L963
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10198480 t .L969
101985e4 t .L983
1019861c t .L989
10198694 t .L990
1019869c t .L991
101986b4 t change_speed
101987b4 t .L1010
10198aa4 t .L1051
10198b2c t .L1078
10198c20 t .L1079
10198c58 t .L1080
10198c64 t .L1081
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10198ee8 t .L1118
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10198f60 t .L1135
10198f68 t .L1136
10198f70 t .L1137
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10199158 t rs_unthrottle
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101991d8 t .L1165
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101992c4 t set_serial_info
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1019955c t .L1183
10199674 t .L1240
101996a0 t .L1241
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10199940 t set_modem_info
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10199ba4 t rs_break
10199c10 t rs_ioctl
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10199f4c t .L1423
10199f5c t .L1424
10199f68 t .L1425
10199f74 t .L1426
10199f7c t .L1427
10199fa4 t .L1428
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1019a254 t .L1429
1019a288 t .L1445
1019a340 t rs_close
1019a380 t .L1446
1019a540 t .L1471
1019a574 t rs_wait_until_sent
1019a6bc t rs_hangup
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1019a728 t block_til_ready
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1019a978 t .L1563
1019a9d0 t .L1564
1019aa5c t get_async_struct
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1019ad14 t .L1595
1019ad30 t .L1598
1019ad74 t .L1612
1019adc0 t .L1613
1019adf0 t .L1614
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1019b1a0 t .L1665
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1019b1f4 t detect_uart_irq
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1019b454 t .L1676
1019b454 t size_fifo
1019b638 t autoconfig_startech_uarts
1019b7d4 t autoconfig
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1019b970 t .L1739
1019b9f8 t .L1765
1019bae0 t .L1726
1019bb38 t .L1766
1019bb98 t .L1767
1019bcac t get_pci_port
1019be40 t get_pci_irq
1019be78 t serial_pci_guess_board
1019bf04 T register_serial
1019bfbc t .L1993
1019c13c t .L2003
1019c1b4 T unregister_serial
1019c264 t serial_console_write
1019c348 t .L2043
1019c444 t .L2067
1019c444 t serial_console_wait_key
1019c4d8 t serial_console_device
1019c4ec T keyboard_wait_for_keypress
1019c510 T to_utf8
1019c530 t .L701
1019c58c T setkeycode
1019c58c t .L705
1019c5b4 T getkeycode
1019c5dc T handle_scancode
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1019c86c t .L708
1019c8d8 t .L755
1019c918 t .L756
1019c938 t .L757
1019ca08 T put_queue
1019cb40 t puts_queue
1019cc94 t applkey
1019ccdc t enter
1019cd34 t caps_toggle
1019cd68 t caps_on
1019cd98 t show_ptregs
1019cdc4 t hold
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1019ce08 t .L809
1019ce10 t .L810
1019ce10 t num
1019ce38 t .L814
1019ce4c t .L815
1019ce4c t bare_num
1019ce80 t lastcons
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1019cfbc t incr_console
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1019d1a8 t scroll_back
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1019d1dc t compose
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1019d22c t SAK
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1019d25c t do_null
1019d274 t do_spec
1019d2e8 t do_lowercase
1019d308 t do_self
1019d324 t .L877
1019d36c t .L882
1019d36c t do_dead
1019d398 t do_dead2
1019d3dc t handle_diacr
1019d470 t do_cons
1019d4f0 t do_fn
1019d504 t .L910
1019d52c t .L916
1019d52c t do_pad
1019d544 t .L917
1019d5c0 t .L970
1019d69c t .L971
1019d6b8 t .L972
1019d6c4 t .L973
1019d6dc t .L974
1019d6e0 t do_cur
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1019d728 t .L979
1019d728 t do_shift
1019d7e8 t .L991
1019d800 t .L998
1019d854 T compute_shiftstate
1019d980 t do_meta
1019d994 t .L1023
1019d9c8 t .L1029
1019d9d8 t .L1030
1019d9d8 t do_ascii
1019da30 t do_lock
1019da6c t do_slock
1019db0c T getledstate
1019db18 T setledstate
1019dbac T register_leds
1019dc10 t kbd_bh
1019dd50 t write_output
1019dda0 t .L640
1019dddc t .L649
1019dddc t lasikbd_leds
1019de2c T lasi_ps2_reset
1019de88 t lasi_ps2_init_hw
1019dea0 t handle_lasikbd_event
1019deb4 t .L655
1019deec t .L667
1019df68 t lasikbd_interrupt
1019df94 T lasikbd_request_irq
1019dfe4 T pckbd_setkeycode
1019e034 T pckbd_getkeycode
1019e070 T pckbd_translate
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1019e13c t .L708
1019e150 t .L711
1019e1a0 t .L712
1019e1e0 T kbd_reset_setup
1019e1e0 t .L713
1019e1e4 T handle_at_scancode
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1019e2c4 t .L750
1019e3c0 t poll_finished
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1019e408 t .L618
1019e408 t hil_interrupt
1019e450 t .L628
1019e4c4 t .L641
1019e4f8 t hil_do
1019e5c4 t def_translate
1019e5d0 t def_unexpected_up
1019e5d8 t def_leds
1019e5dc t def_init_hw
1019e5e0 t send_sig_all
1019e678 T handle_sysrq
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1019e970 t .L794
1019e984 t .L795
1019e9b4 t .L796
1019e9dc t .L797
1019e9f8 t .L798
1019ea08 t .L799
1019ea4c t .L800
1019eaa0 t .L801
1019eac0 t .L802
1019eae0 t .L803
1019eae4 t is_local_disk
1019ed2c t go_sync
1019ed84 t .L890
1019ee2c t .L914
1019ee8c t .L915
1019ee98 T do_emergency_sync
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1019ef6c t .L934
1019ef6c t lp_reset
1019f068 t lp_error
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1019f0d4 t .L730
1019f0f4 t .L738
1019f134 t .L739
1019f13c t .L740
1019f13c t lp_check_status
1019f264 t lp_write
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1019f400 t .L799
1019f48c t .L782
1019f4ec t .L800
1019f50c t lp_open
1019f6ac t lp_release
1019f710 t lp_ioctl
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1019f9a0 t .L872
1019fa50 t lp_register
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1019fba8 t .L926
1019fc08 t lp_detach
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1019ff44 t set_hw_time
101a003c t gen_do_uie_timer
101a0088 t gen_rtc_llseek
101a0094 t gen_rtc_read
101a0144 t .L719
101a01bc t .L778
101a01bc t gen_rtc_ioctl
101a02f4 t gen_rtc_open
101a0324 t gen_rtc_release
101a0364 T t21142_timer
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101a0470 t .L916
101a04fc t .L908
101a05e4 t .L917
101a061c t .L918
101a0620 T t21142_start_nway
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101a0774 t .L934
101a0794 T t21142_lnk_change
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101a0938 t .L994
101a096c t .L995
101a09e4 t .L996
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101a0ae0 t .L957
101a0b3c t .L997
101a0b74 t .L998
101a0b9c t .L999
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101a0e64 t .L878
101a11bc t .L982
101a1218 t .L983
101a128c t .L984
101a12b0 T tulip_read_eeprom
101a1414 t tulip_refill_rx
101a1544 t tulip_rx
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101a18c4 t .L955
101a1994 T tulip_interrupt
101a2154 T tulip_mdio_read
101a2268 t .L878
101a22a4 t .L924
101a22c4 t .L925
101a22d0 t .L926
101a2328 T tulip_mdio_write
101a2424 t .L927
101a2460 t .L968
101a2484 t .L969
101a2494 t .L970
101a24c4 T tulip_select_media
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101a2610 t .L1045
101a278c t .L1127
101a298c t .L994
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101a2ba4 t .L1129
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101a2cc0 t .L1131
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101a2d6c t .L1133
101a2da0 t .L1134
101a2dc4 t .L1135
101a2e94 t .L1136
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101a30a0 T pnic_do_nway
101a3204 T pnic_lnk_change
101a3304 t .L901
101a3364 T pnic_timer
101a3364 t .L905
101a33d4 t .L909
101a34ec t .L935
101a3548 t .L918
101a35d4 t .L936
101a362c t .L937
101a3654 t .L938
101a3658 T tulip_timer
101a3940 t .L980
101a39a0 t .L1010
101a3b18 t .L1011
101a3bfc t .L1012
101a3cb8 t .L1013
101a3cbc T mxic_timer
101a3d24 T comet_timer
101a3dac t tulip_up
101a3f24 t .L910
101a4008 t .L917
101a40b0 t .L946
101a4304 t .L999
101a43e8 t .L1000
101a4450 t .L1001
101a4474 t .L1002
101a44cc t .L1003
101a4504 t .L1004
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101a46f8 t .L1020
101a482c t .L1048
101a4914 t .L1049
101a497c t .L1050
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101a4bd4 t tulip_start_xmit
101a4d20 t tulip_down
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101a4e04 t .L1120
101a4e04 t tulip_close
101a4f30 t .L1126
101a4fac t .L1138
101a4ff4 t .L1150
101a4ffc t .L1151
101a4ffc t tulip_get_stats
101a504c t private_ioctl
101a52a8 t build_setup_frame_hash
101a5418 t build_setup_frame_perfect
101a54e4 t set_rx_mode
101a5564 t .L1274
101a56f0 t .L1336
101a571c t .L1303
101a58b4 t .L1337
101a58b4 t tulip_init_one
101a5940 t .L1339
101a5a80 t .L1368
101a5a9c t .L1353
101a5aac t .L1569
101a5c24 t .L1377
101a5fb4 t .L1480
101a615c t .L1494
101a6228 t .L1615
101a6284 t .L1616
101a63e8 t .L1617
101a6610 t .L1618
101a6620 t .L1619
101a6680 t .L1620
101a66c8 t .L1621
101a6708 t .L1622
101a6774 t .L1623
101a6784 t .L1624
101a679c t .L1625
101a679c t tulip_suspend
101a6818 t tulip_resume
101a6844 t .L1637
101a68e8 t .L1652
101a6920 t tulip_remove_one
101a69e0 t init_alloc_dev
101a6a5c t init_netdev
101a6b3c T init_etherdev
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101a6ba0 t eth_change_mtu
101a6bbc T ether_setup
101a6c54 T ether_config
101a6cac T register_netdev
101a6d44 T unregister_netdev
101a6d70 t loopback_xmit
101a6ddc t .L1036
101a6e5c t .L1041
101a6e88 t .L1031
101a6e98 t .L1042
101a6eb4 t get_stats
101a6ebc t i596_display_data
101a7044 t .L1009
101a7064 t .L1017
101a7064 t rebuild_rx_bufs
101a7108 t .L1052
101a711c t .L1058
101a711c t init_i596_mem
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101a72c0 t .L1074
101a7310 t .L1075
101a73f4 t .L1084
101a743c t .L1088
101a7484 t .L1092
101a74bc t .L1096
101a74d8 t .L1101
101a7528 t .L1102
101a7594 t .L1112
101a75b4 t .L1118
101a7604 t .L1119
101a7680 t .L1155
101a768c t .L1156
101a7698 t .L1157
101a76d0 t .L1158
101a76dc t .L1159
101a76ec t .L1160
101a76fc t .L1161
101a770c t .L1162
101a7718 t .L1163
101a7748 t .L1164
101a7754 t .L1165
101a7778 t .L1166
101a7778 t i596_add_cmd
101a7818 t .L1337
101a7850 t .L1345
101a78cc t .L1363
101a7920 t .L1364
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101a79d8 t .L1373
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101a7a48 t .L1379
101a7a5c t .L1389
101a7ab0 t .L1390
101a7ac8 t .L1395
101a7ae0 t .L1396
101a7b10 t .L1398
101a7b4c t .L1402
101a7cac t .L1361
101a7cbc t .L1415
101a7d14 t .L1426
101a7d54 t .L1428
101a7d60 t .L1399
101a7df4 t .L1471
101a7e1c t .L1472
101a7e28 t .L1473
101a7eb0 t .L1474
101a7edc t .L1475
101a7fec t .L1476
101a7ffc t .L1477
101a8008 t .L1478
101a8030 t .L1479
101a803c t .L1480
101a804c t .L1481
101a8054 t .L1482
101a80a0 t .L1386
101a80d0 t .L1483
101a80f8 t .L1484
101a8104 t .L1485
101a8110 t .L1486
101a811c t .L1487
101a8144 t .L1488
101a8150 t .L1489
101a815c t .L1490
101a816c t .L1491
101a817c t .L1346
101a81d0 t .L1347
101a81e8 t .L1353
101a8214 t .L1354
101a8228 t .L1492
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101b0c84 T print_hostbyte
101b0cac T print_driverbyte
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101b7c74 t .L1090
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101b8c74 t __map_scsi_single_data
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101b8d1c t __map_scsi_sg_data
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101b8ff8 t PRINT_ADDR
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101b9ae8 t .L1759
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101b9f7c t .L1697
101b9f8c t .L1698
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101ba18c t .L1776
101ba1ac t ncr_start_next_ccb
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101ba27c t .L1713
101ba284 t ncr_put_start_queue
101ba330 t ncr_put_start_queue
101ba3e8 t ncr_chip_reset
101ba458 t ncr_chip_reset
101ba504 t ncr_soft_reset
101ba554 t .L1794
101ba55c t .L1802
101ba584 t .L1808
101ba5ac t .L1809
101ba5b0 t ncr_start_reset
101ba5d4 t ncr_start_reset
101ba5ec t .L1721
101ba608 t .L1723
101ba608 t ncr_reset_scsi_bus
101ba884 t ncr_reset_scsi_bus
101bab3c t ncr_reset_bus
101bac38 t ncr_reset_bus
101bad34 t ncr_abort_command
101bade8 t ncr_abort_command
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101bb0ec t .L1890
101bb130 t .L1912
101bb1e0 t .L1935
101bb1fc t .L1936
101bb208 t .L1937
101bb2dc t .L1938
101bb2fc t .L1886
101bb310 t .L1887
101bb388 t .L1939
101bb3c4 t .L1940
101bb3d8 t .L1941
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101bb61c t .L1808
101bb684 t .L1844
101bb718 t .L1870
101bb760 t .L1871
101bb878 t .L1872
101bb898 t .L1804
101bb8ac t .L1805
101bb924 t .L1873
101bb960 t .L1874
101bb974 t .L1875
101bb98c t .L1876
101bb99c t .L1877
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101bba00 t .L1945
101bba58 t .L1958
101bba8c t ncr_wakeup_done
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101bbb34 t .L1894
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101bbba4 t ncr_wakeup
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101bbec0 t .L2018
101bbed0 t .L2021
101bbf84 t .L2034
101bc1dc t .L2088
101bc1ec t .L2089
101bc210 t .L2090
101bc248 t .L2091
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101bc5a4 t .L1931
101bc660 t .L1946
101bc688 t .L1953
101bc6a0 t .L1954
101bc6b0 t .L1955
101bc6e8 t .L1956
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101bc744 t ncr_negotiate
101bc7a0 t ncr_getsync
101bc86c t ncr_getsync
101bc90c t ncr_get_xfer_info
101bca48 t ncr_set_sync_wide_status
101bcb28 t ncr_set_sync_wide_status
101bcbc8 t ncr_setsync
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101bce4c t .L2194
101bce80 t .L2195
101bcf78 t ncr_setsync
101bd188 t .L2013
101bd1e8 t .L2023
101bd25c t ncr_setwide
101bd318 t .L2205
101bd350 t .L2216
101bd3b4 t ncr_setwide
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101bd4b0 t .L2044
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101bd7ac t .L2265
101bd7e0 t .L2266
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101bd9f4 t .L2305
101bda04 t .L2306
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101bdb48 t .L2069
101bdb58 t .L2070
101bdb90 t ncr_usercmd
101bdd28 t .L2316
101bde18 t .L2390
101bde28 t ncr_usercmd
101be07c t ncr_timeout
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101be118 t .L2401
101be134 t .L2402
101be134 t ncr_timeout
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101be1d8 t .L2149
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101be43c t ncr_log_hard_error
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101be9a4 t .L2487
101be9c0 t .L2488
101be9cc t .L2489
101be9dc t .L2490
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101bea10 t .L2492
101bea20 t .L2493
101bea54 t .L2494
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101becec t .L2212
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101bed3c t .L2214
101bed6c t .L2215
101bedbc t .L2216
101bedcc t .L2217
101bee00 t .L2218
101bee28 t .L2219
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101bef70 t .L2514
101bef70 t ncr_int_sto
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101beff8 t .L2522
101beffc t ncr_int_sto
101bf078 t ncr_int_udc
101bf0fc t ncr_int_sbmc
101bf184 t ncr_int_sbmc
101bf21c t ncr_int_par
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101bf3d0 t .L2577
101bf41c t .L2578
101bf440 t .L2579
101bf460 t .L2580
101bf464 t ncr_int_par
101bf514 t .L2246
101bf58c t .L2247
101bf594 t ncr_int_ma
101bf8b8 t .L2610
101bf8c0 t .L2581
101bf974 t .L2746
101bfbf8 t .L2747
101bfc54 t .L2748
101bfc64 t .L2749
101bfcd0 t ncr_int_ma
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101bfe9c t .L2248
101c0048 t .L2314
101c01ac t .L2315
101c01c8 t ncr_sir_to_redo
101c04b4 t .L2778
101c067c t .L2888
101c07a0 t ncr_sir_to_redo
101c0900 t .L2316
101c0954 t .L2339
101c0a3c t ncr_clear_tasks
101c0a94 t .L2892
101c0b20 t .L2903
101c0b20 t ncr_sir_task_recovery
101c0c64 t .L2904
101c0d98 t .L2905
101c0dcc t .L3046
101c1068 t .L2994
101c1084 t .L3047
101c10bc t .L3048
101c1130 t ncr_evaluate_dp
101c12a8 t ncr_modify_dp
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101c147c t .L3152
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101c1548 t ncr_show_msg
101c15f8 t ncr_show_msg
101c16a8 t ncr_print_msg
101c1700 t ncr_print_msg
101c1758 t ncr_sync_nego
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101c18b0 t .L3234
101c191c t .L3204
101c196c t .L3251
101c19a0 t .L3252
101c19f8 t .L3225
101c1a1c t .L3253
101c1a34 t .L3254
101c1a4c t ncr_wide_nego
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101c1b84 t .L3255
101c1c18 t .L3286
101c1c30 t .L3287
101c1c30 t ncr_ppr_nego
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101c1e24 t .L3331
101c1ea0 t .L3288
101c1f08 t .L3353
101c1f70 t .L3354
101c1ff0 t .L3317
101c2014 t .L3355
101c2030 t .L3356
101c2044 t .L3357
101c2084 t ncr_nego_default
101c20b8 t .L3359
101c20f4 t .L3374
101c2174 t .L3375
101c2198 t .L3376
101c21ac t .L3377
101c21ac t ncr_nego_rejected
101c21d8 t ncr_int_sir
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101c2368 t .L3405
101c2368 t .L3499
101c2394 t .L3500
101c23a8 t .L3501
101c2464 t .L3502
101c2474 t .L3503
101c2484 t .L3504
101c2494 t .L3505
101c24d0 t .L3506
101c250c t .L3443
101c2530 t .L3507
101c2540 t .L3508
101c2580 t .L3509
101c2664 t .L3510
101c26a8 t .L3511
101c2700 t .L3512
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101c2888 t .L2368
101c28b4 t .L2477
101c28c4 t .L2478
101c2974 t .L2389
101c2998 t .L2479
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101c2d88 t .L2484
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101c2de0 t .L2486
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101c31fc t .L2513
101c31fc t ncr_free_ccb
101c336c t ncr_free_ccb
101c34e0 t ncr_alloc_ccb
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101c36c8 t ncr_init_tcb
101c36d4 t ncr_init_tcb
101c3834 t ncr_alloc_lcb
101c3a50 t ncr_alloc_lcb
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101c3c0c t .L2558
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101c3e78 t ncr_setup_lcb
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101c4254 t .L3718
101c4258 t ncr_scatter
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101c4314 t .L3738
101c4318 t ncr_scatter
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101c44bc t .L3800
101c4500 t .L3808
101c4510 t .L3809
101c4590 t ncr_selectclock
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101c464c t .L2661
101c468c t .L2668
101c469c t .L2669
101c471c t device_queue_depth
101c4888 t device_queue_depth
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101c4ae0 t .L4182
101c4ae8 T sym53c8xx_info
101c4af4 T sym53c8xx_queue_command
101c4b98 t sym53c8xx_intr
101c4c48 t sym53c8xx_timeout
101c4cb0 T sym53c8xx_reset
101c4d88 T sym53c8xx_abort
101c4e34 t insert_into_waiting_list
101c4e68 t insert_into_waiting_list
101c4e9c t retrieve_from_waiting_list
101c4edc t retrieve_from_waiting_list
101c4f1c t process_waiting_list
101c4fb0 t process_waiting_list
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101c50a4 t skip_spaces
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101c5238 t is_keyword
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101c58ec t ncr_user_command
101c5efc t copy_mem_info
101c5f78 t copy_mem_info
101c5ff4 t copy_info
101c6050 t copy_info
101c60ac t ncr_host_info
101c61a0 t ncr_host_info
101c628c t sym53c8xx_proc_info
101c62fc t .L4435
101c631c T lasi7xx_detect
101c631c t .L4450
101c635c t lasi_scsi_callback_700
101c63b0 t lasi_scsi_callback_710
101c6400 t ncr_dump
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101c6a10 t .L879
101c6a74 t .L909
101c6fb4 t .L910
101c6ff8 t param_setup
101c71d8 t sbcl_to_phase
101c7260 t ncr_halt
101c7520 t sim700_soft_reset
101c7944 t .L1029
101c7d2c t .L1053
101c7d30 t sim700_driver_init
101c8530 t handle_sdtr
101c86f8 t handle_rej
101c879c t datapath_residual
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101c88f4 t .L1274
101c8930 t .L1272
101c8984 t .L1275
101c8988 t handle_idd
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101c8bf8 t .L1302
101c8bfc t handle_phase_mismatch
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101c8e10 t .L1457
101c8e34 t .L1456
101c8e98 t .L1318
101c8f04 t .L1441
101c8ff4 t .L1468
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101c93b0 t .L1475
101c93c8 t .L1476
101c93e0 t .L1477
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101c9690 t .L1557
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101c9c08 t .L1635
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101c9e1c t .L1671
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101ca830 t .L1901
101cab3c t process_issue_queue
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101cad98 t .L1949
101cadb0 T sim700_init_host
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101cafb8 t .L1964
101cafc4 t .L1957
101cafec t .L1955
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101cb064 t .L2055
101cb11c t .L1975
101cb30c t .L2004
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101cb3d8 t .L2017
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101cb47c t .L2058
101cb4ac t .L2046
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101cb514 t .L2060
101cb538 t .L2061
101cb568 t .L2062
101cb578 t .L2063
101cb5c4 t .L2064
101cb5c8 T sim700_abort
101cb5fc T sim700_dev_reset
101cb630 T sim700_bus_reset
101cb660 t full_reset
101cb914 t .L2093
101cb938 t .L2097
101cb964 T sim700_host_reset
101cb994 t run_process_issue_queue
101cb9bc t .L1903
101cb9d8 T zalon7xx_detect
101cb9d8 t .L2104
101cba18 t ncr_ccb_skipped
101cbab8 t ncr_init_ccb
101cbb80 t ncr_lookup
101cbc34 t ncr53c8xx_select_queue_depths
101cbc5c t .L2719
101cbd20 T ncr53c8xx_queue_command
101cbd20 t .L2731
101cbdbc t ncr53c8xx_intr
101cbe6c t ncr53c8xx_timeout
101cbed4 T ncr53c8xx_reset
101cbfac T ncr53c8xx_abort
101cc058 t ncr53c8xx_proc_info
101cc0c0 t .L2969
101cc0e0 T zalon_attach
101cc0e0 t .L2984
101cc2a0 T ncr53c8xx_info
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101cc370 t st_chk_result
101cc428 t .L858
101cc4bc t .L860
101cc4d4 t st_sleep_done
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101cc568 t .L875
101cc5c8 t st_do_scsi
101cc6c4 t .L890
101cc704 t .L894
101cc74c t write_behind_check
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101cc840 t .L903
101cc840 t cross_eof
101cc934 t flush_write_buffer
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101ccadc t .L929
101ccb1c t flush_buffer
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101ccc28 t .L951
101ccc5c t .L952
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101ccd3c t st_open
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101cd3e8 t .L1073
101cd514 t st_flush
101cd844 t st_release
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101cd910 t .L1142
101cd910 t st_write
101cda08 t .L1150
101cda28 t .L1235
101cda40 t .L1274
101cdabc t .L1275
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101ce56c t st_read
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101ce680 t .L1423
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101cea88 t st_set_options
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101cec18 t .L1492
101cec50 t .L1493
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101cecc8 t .L1496
101ced24 t .L1497
101ced58 t .L1498
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101ceec4 t write_mode_page
101cefb4 t st_compression
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101cfc1c t set_location
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101cfeb0 t update_partition
101cff04 t nbr_partitions
101cff5c t partition_tape
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101d01d0 t .L1768
101d01e4 t .L1854
101d01fc t .L1908
101d0648 t .L1909
101d0928 t .L1852
101d0940 t .L1910
101d094c t .L1911
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101d0c24 t enlarge_buffer
101d0df4 t normalize_buffer
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101d0ff4 t from_buffer
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101d16e8 t st_detect
101d176c t st_init
101d1858 t st_detach
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101d1aa4 t .L934
101d1b9c t .L1070
101d1bec t .L852
101d1cf0 t .L1071
101d1d04 t .L1072
101d1d38 t .L1073
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101d1e80 t .L1077
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101d1eb8 t sd_init_command
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101d20cc t .L1121
101d2128 t sd_open
101d2350 t sd_release
101d239c t .L1151
101d2450 t .L1159
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101d25e0 t rw_intr
101d2728 t check_scsidisk_media_change
101d2838 t sd_init_onedisk
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101d29d8 t .L1215
101d2ad4 t .L1224
101d2be0 t .L1245
101d2cac t .L1269
101d2cd4 t .L1270
101d2d50 t .L1227
101d2f1c t .L1271
101d2f2c t .L1272
101d2f40 t .L1207
101d2f80 t .L1273
101d3004 t .L1274
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101d366c t sd_finish
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101d39b8 t sd_attach
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101d3d48 t sd_detach
101d3f30 t sr_release
101d406c t sr_media_change
101d4188 t sr_find_queue
101d41c4 t sr_scatter_pad
101d43f4 t sr_init_command
101d44d4 t .L895
101d46c0 t .L928
101d46d0 t sr_open
101d4844 t sr_detect
101d48b0 t sr_attach
101d497c T get_sectorsize
101d4a40 t .L956
101d4b70 t .L979
101d4ccc T get_capabilities
101d4f6c t .L980
101d50d0 t .L1017
101d50d4 t sr_packet
101d514c t sr_init
101d5390 t sr_finish
101d5428 t .L1046
101d55f8 t .L1058
101d5604 t sr_detach
101d56f8 t sr_fake_playtrkind
101d5740 t .L828
101d581c t .L836
101d5828 T sr_do_ioctl
101d58b8 t .L840
101d59f4 t .L846
101d5a00 t .L871
101d5a1c t .L872
101d5a4c t .L873
101d5a54 t .L850
101d5a6c t .L874
101d5a7c t .L875
101d5a84 t .L855
101d5ab0 t .L876
101d5ab0 t test_unit_ready
101d5b24 T sr_tray_move
101d5bb0 T sr_lock_door
101d5c04 T sr_drive_status
101d5c40 T sr_disk_status
101d5d44 T sr_get_last_session
101d5da8 T sr_get_mcn
101d5e74 T sr_reset
101d5e98 T sr_select_speed
101d5f58 T sr_audio_ioctl
101d5fb0 t .L922
101d6048 t .L936
101d61cc T sr_read_cd
101d62b4 T sr_read_sector
101d6330 t .L946
101d641c T sr_is_xa
101d641c t .L953
101d64c0 T sr_dev_ioctl
101d6558 t .L960
101d6580 T sr_vendor_init
101d6580 t .L984
101d65a0 T sr_set_blocklength
101d66d4 T sr_cd_check
101d67b8 t .L836
101d6900 t .L850
101d6938 t sg_open
101d6a5c t .L847
101d6b2c t .L893
101d6b84 t .L866
101d6bc4 t .L894
101d6be8 t sg_release
101d6cb4 t sg_read
101d6fbc t .L921
101d7014 t .L989
101d7040 t sg_new_read
101d713c t sg_write
101d7230 t .L1008
101d7374 t .L1057
101d7398 t sg_new_write
101d74f4 t sg_common_write
101d76c0 t sg_ioctl
101d7770 t .L1093
101d77bc t .L1804
101d77e4 t .L1790
101d7840 t .L1805
101d7908 t .L1806
101d7994 t .L1807
101d7f64 t .L1661
101d7fcc t .L1808
101d7fe0 t .L1809
101d80d0 t .L1106
101d8170 t .L1810
101d8214 t sg_poll
101d82ec t sg_fasync
101d832c t sg_cmd_done_bh
101d84f0 t .L1838
101d8584 t .L1873
101d8588 t sg_detect
101d8654 t sg_init
101d868c t .L1896
101d8708 t .L1910
101d8764 t sg_attach
101d8950 t sg_finish
101d8954 t sg_detach
101d8a98 t sg_shorten_timeout
101d8ab4 t sg_start_req
101d8b78 t .L1996
101d8ba0 t .L2004
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101d9864 t sg_unlink_reserve
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101dcbd8 t .L1010
101dcc18 t .L1011
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101e09d4 T pci_find_capability
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101e0d18 t .L760
101e0d1c T pci_enable_device
101e0d54 T pci_get_interrupt_pin
101e0de4 T pci_match_device
101e0e80 t pci_announce_device
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101e0fac T pci_unregister_driver
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101e1168 T pci_insert_device
101e1210 t pci_free_resources
101e1264 T pci_remove_device
101e12dc T pci_dev_driver
101e1320 T pci_read_config_byte
101e1354 T pci_read_config_word
101e139c T pci_read_config_dword
101e13e8 T pci_write_config_byte
101e1420 T pci_write_config_word
101e146c T pci_write_config_dword
101e14b8 T pci_set_master
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101e152c t pci_read_bases
101e1798 t pci_read_irq
101e17e8 T pci_setup_device
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101e1980 t .L991
101e1984 t pci_do_fixups
101e1a18 T pci_fixup_device
101e1a64 T pcibios_present
101e1a7c T pcibios_find_class
101e1b04 T pcibios_find_device
101e1b9c T pcibios_read_config_byte
101e1bf0 T pcibios_read_config_word
101e1c44 T pcibios_read_config_dword
101e1c98 T pcibios_write_config_byte
101e1cf0 T pcibios_write_config_word
101e1d48 T pcibios_write_config_dword
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101e2840 T pci_proc_detach_device
101e2888 t sprint_dev_config
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101e2e74 t .L749
101e2e7c T sys_pciconfig_write
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101e3ec0 t .L1451
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101e4508 t .L1604
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101e5890 t .L1911
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101e59f0 t .L1954
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101e5eb4 t .L2044
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101e6da4 t get_free_stripe
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101e772c t shrink_stripes
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101e7c08 t .L1727
101e7c20 t .L1728
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101eb6ac t xor_32regs_p_4
101eb848 t xor_32regs_p_5
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101ebc24 t calibrate_xor_block
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101ebde0 T del_mddev_mapping
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101ec0b4 T find_rdev_nr
101ec0e8 T find_rdev
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101ec83c t .L1552
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101ecb80 t .L1589
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101ecc10 t .L1594
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101ecea4 t .L1620
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101ecf94 t .L1642
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101ecff0 t print_sb
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101ed320 t .L1680
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101ee358 t .L1956
101ee3dc t .L1957
101ee408 t .L1958
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101efc9c t .L2322
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101f3668 t wax_inw
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101fe590 T dbl_to_sgl_fcnvfx
101fe850 T dbl_to_dbl_fcnvfx
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10208b10 t .L1734
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102090d4 t .L1890
102090f4 t .L1738
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10220508 t tcp_prune_queue
102205d4 t .L3005
10220620 t .L3023
102206d4 t tcp_data
102207b0 t .L3027
1022080c t .L3052
1022081c T tcp_cwnd_application_limited
10220898 t tcp_new_space
10220934 t .L3080
10220974 t .L3087
102209e8 t __tcp_data_snd_check
10220afc t tcp_check_urg
10220b84 t .L3136
10220be0 t .L3145
10220be0 t tcp_copy_to_iovec
10220c34 t .L3154
10220cc4 t .L3162
10220cc8 t __tcp_checksum_complete_user
10220d48 T tcp_rcv_established
10220de4 t .L3187
10220dec t .L3287
10220ee8 t .L3299
1022101c t .L3300
10221038 t .L3301
102210ec t .L3302
10221134 t .L3303
10221204 t .L3304
10221378 t .L3210
102213a8 t .L3305
102213fc t .L3306
102214e0 t tcp_rcv_synsent_state_process
102215b0 t .L3314
10221738 t .L3354
102217fc t .L3410
1022195c t .L3411
102219b4 T tcp_rcv_state_process
10221ad0 t .L3415
10221c70 t .L3466
10221cec t .L3422
10221e7c t .L3554
10221ea8 t .L3629
10221f00 t .L3630
10221fa8 t .L3502
10222044 t .L3631
10222088 t .L3632
102220a4 t .L3633
10222134 t .L3526
1022216c t .L3634
102221b4 t .L3635
102221d4 t .L3636
10222234 t .L3637
1022227c t .L3638
10222318 t tcp_advertise_mss
10222340 t tcp_cwnd_restart
102223f0 T tcp_transmit_skb
10222668 t .L1602
10222798 t .L1630
102228e8 T tcp_send_skb
10222b38 t tcp_fragment
10222db0 T tcp_sync_mss
10222e18 T tcp_write_xmit
10222f40 t .L1734
10222fa4 t .L1746
10223128 T __tcp_select_window
10223224 t tcp_retrans_try_collapse
1022339c t .L1796
102234c4 t .L1799
102234c8 T tcp_simple_retransmit
10223630 T tcp_retransmit_skb
10223704 t .L1836
1022377c t .L1863
10223838 t .L1866
1022389c T tcp_xmit_retransmit_queue
1022389c t .L1867
10223c8c T tcp_send_fin
10223d2c t .L1966
10223e54 t .L1967
10223f84 t .L2013
102240bc t .L2014
102240c0 T tcp_send_active_reset
10224188 T tcp_send_synack
10224300 T tcp_make_synack
10224730 T tcp_connect
102249dc t .L2177
10224a1c t .L2194
10224a48 t .L2209
10224a7c t .L2210
10224c70 T tcp_send_delayed_ack
10224d6c T tcp_send_ack
10224e70 t tcp_xmit_probe_skb
10224f04 T tcp_write_wakeup
10224ff4 t .L2246
10225138 T tcp_send_probe0
10225138 t .L2272
10225278 T tcp_init_xmit_timers
102252dc T tcp_clear_xmit_timers
102253b4 t tcp_write_err
1022540c t .L1529
102254b0 t .L1543
102254b0 t tcp_out_of_resources
102255b0 t .L1557
10225660 t .L1574
1022567c t tcp_orphan_retries
102256c4 t tcp_write_timeout
1022580c t tcp_delack_timer
10225864 t .L1630
10225884 t .L1632
102258a0 t .L1648
10225930 t .L1649
10225a34 t tcp_probe_timer
10225a5c t .L1650
10225ae8 t .L1663
10225af0 t .L1664
10225b04 t tcp_retransmit_timer
10225b38 t .L1668
10225dbc t .L1715
10225dbc t tcp_write_timer
10225df4 t .L1734
10225e14 t .L1736
10225e2c t .L1746
10225e7c t .L1744
10225e98 t .L1747
10225ed0 t .L1748
10225ed8 t .L1749
10225edc t tcp_synack_timer
102260f4 T tcp_delete_keepalive_timer
10226144 T tcp_reset_keepalive_timer
1022619c T tcp_set_keepalive
102261b8 t .L1795
102261e8 t .L1808
102261fc t .L1809
102261fc t tcp_keepalive_timer
10226228 t .L1859
1022624c t .L1861
10226268 t .L1882
102262a8 t .L1829
10226304 t .L1883
10226330 t .L1884
102263f4 t .L1885
10226428 t .L1849
10226460 t .L1886
102264ac t .L1887
102264c0 t .L1888
102264c4 T tcp_bucket_create
1022652c t tcp_v4_get_port
102267ac T tcp_put_port
10226800 t .L1625
10226848 T tcp_listen_wlock
10226848 t .L1629
1022693c t tcp_v4_hash
102269e0 t .L1668
10226a1c t .L1672
10226a54 t .L1676
10226a70 t .L1677
10226a74 T tcp_unhash
10226aa4 t .L1681
10226b00 t .L1689
10226b18 t .L1692
10226b28 t .L1693
10226b2c t __tcp_v4_lookup_listener
10226ba0 t tcp_v4_check_established
10226d38 t .L1815
10226d68 t .L1833
10226e2c T tcp_v4_hash_connecting
10226f0c t .L1843
10226f48 t .L1849
10226f74 t .L1858
10226f8c t .L1859
10226f90 T tcp_v4_connect
10227084 t .L1866
102272e8 t .L1899
102272ec t tcp_v4_search_req
102273a4 t tcp_v4_synq_add
10227424 t .L1918
10227444 T tcp_v4_err
10227444 t .L1920
102274b4 t .L1931
1022765c t .L2029
1022768c t .L2083
1022783c t .L2007
1022786c t .L2084
10227888 t .L2085
1022790c t .L2014
10227944 t .L2086
1022798c t .L2087
10227a54 t .L2088
10227aac t .L2089
10227bb4 T tcp_v4_send_check
10227c34 t tcp_v4_send_reset
10227da0 t tcp_v4_send_ack
10227f0c t tcp_v4_timewait_ack
10227f64 t .L2107
10227f80 t .L2109
10227f80 t tcp_v4_or_send_ack
10227fb8 t tcp_v4_route_req
102280d4 t tcp_v4_send_synack
102281e8 t tcp_v4_or_free
10228210 T tcp_v4_conn_request
1022827c t .L2145
10228488 t .L2203
10228654 T tcp_v4_syn_recv_sock
102287b8 t .L2225
102287f4 t .L2229
10228858 t .L2240
10228874 t .L2241
102288e4 t tcp_v4_hnd_req
10228a2c t .L2260
10228a44 t .L2273
10228ac4 t tcp_v4_checksum_init
10228bfc T tcp_v4_do_rcv
10228c88 t .L2312
10228cb8 t .L2321
10228cd4 t .L2330
10228d08 t .L2331
10228d34 t .L2332
10228d40 t .L2325
10228d54 T tcp_v4_rcv
10228d84 t .L2335
10228dac t .L2396
10228de0 t .L2462
10228fa4 t .L2463
102290b0 t .L2417
102290c8 t .L2464
102290d8 t .L2465
10229170 t .L2466
102291b4 t .L2385
102291c8 t .L2467
10229234 t .L2375
102292e0 t .L2468
102293f8 t __tcp_v4_rehash
10229434 t tcp_v4_reselect_saddr
10229610 T tcp_v4_rebuild_header
10229784 t v4_addr2sockaddr
102297a0 T tcp_v4_remember_stamp
102298d4 T tcp_v4_tw_remember_stamp
102299c0 t tcp_v4_init_sock
10229aa8 t tcp_v4_destroy_sock
10229ac8 t .L2530
10229b34 t .L2562
10229b50 t .L2536
10229b9c t .L2563
10229bc4 t .L2544
10229c10 t .L2564
10229c80 t get_openreq
10229d20 t get_tcp_sock
10229ebc t get_timewait_sock
10229f50 T tcp_get_info
1022a148 t .L2639
1022a260 t .L2608
1022a2e8 t .L2685
1022a35c t .L2686
1022a360 T tcp_v4_lookup_listener
1022a400 T __tcp_put_port
1022a43c t .L1620
1022a474 T tcp_inherit_port
1022a474 t .L2693
1022a4c4 T tcp_v4_lookup
1022a6ac T tcp_timewait_kill
1022a70c t .L1529
1022a730 t .L1519
1022a74c t .L1534
1022a778 T tcp_timewait_state_process
1022a778 t .L1535
1022a934 t .L1613
1022a9bc t .L1563
1022a9d4 t .L1614
1022aa34 t .L1566
1022aa70 t .L1556
1022aa70 t .L1615
1022aa94 t .L1559
1022aaac t .L1616
1022aaf8 t __tcp_tw_hashdance
1022aba8 t .L1624
1022abf4 T tcp_time_wait
1022abf4 t .L1628
1022ad70 t .L1639
1022ada4 t .L1642
1022ae48 t .L1656
1022ae7c t .L1657
1022ae7c t tcp_twkill
1022af24 t .L1666
1022afb8 T tcp_tw_deschedule
1022afb8 t .L1673
1022b00c t .L1678
1022b02c t .L1680
1022b040 t .L1683
1022b04c T tcp_tw_schedule
1022b04c t .L1684
1022b148 t .L1700
1022b17c t .L1704
1022b1d4 t .L1696
1022b210 t .L1705
1022b238 t tcp_twcal_tick
1022b2ec t .L1708
1022b304 t .L1724
1022b364 t .L1734
1022b374 t .L1735
1022b3d4 t .L1718
1022b3f4 T tcp_create_openreq_child
1022b3f4 t .L1736
1022b7dc T tcp_check_req
1022b8e0 t .L1773
1022b9e4 t .L1790
1022ba14 t .L1809
1022ba30 t .L1810
1022bac0 t .L1784
1022bb18 t .L1811
1022bb98 T tcp_child_process
1022bc00 t .L1821
1022bc24 t .L1826
1022bc6c t raw_v4_hash
1022bcf0 t raw_v4_unhash
1022bd68 T __raw_v4_lookup
1022bdbc T raw_v4_input
1022bef0 T raw_err
1022c03c t raw_rcv_skb
1022c168 t .L1210
1022c17c t .L1220
1022c194 T raw_rcv
1022c1d8 t raw_getfrag
1022c1fc t raw_getrawfrag
1022c278 t .L1228
1022c300 t .L1236
1022c30c t raw_sendmsg
1022c3c0 t .L1243
1022c630 t .L1289
1022c644 t raw_close
1022c670 t raw_bind
1022c738 T raw_recvmsg
1022c778 t .L1299
1022c7b4 t .L1316
1022c800 t .L1306
1022c878 t .L1317
1022c894 t raw_init
1022c8b0 t raw_seticmpfilter
1022c8e4 t raw_geticmpfilter
1022c97c t raw_setsockopt
1022c9ac t .L1371
1022c9dc t .L1379
1022c9dc t raw_getsockopt
1022ca0c t .L1380
1022ca3c t .L1388
1022ca3c t raw_ioctl
1022cae4 t get_raw_sock
1022cb84 T raw_get_info
1022cccc t udp_v4_get_port
1022cf20 t udp_v4_hash
1022cf4c t udp_v4_unhash
1022cfc8 T udp_v4_lookup_longway
1022d07c T udp_err
1022d0d8 t .L1231
1022d214 t .L1271
1022d284 t udp_check
1022d2b8 t udp_getfrag
1022d3d0 t udp_getfrag_nosum
1022d40c t .L1287
1022d444 t .L1290
1022d448 T udp_sendmsg
1022d8bc T udp_ioctl
1022d968 T udp_recvmsg
1022dab8 t .L1443
1022dad4 t .L1461
1022dbd8 T udp_connect
1022dcb4 t .L1467
1022ddf8 t .L1484
1022ddfc T udp_disconnect
1022de84 t udp_close
1022de9c t udp_queue_rcv_skb
1022dfc4 t .L1502
1022dfd8 t .L1506
1022dff0 t udp_v4_mcast_deliver
1022e138 t .L1536
1022e19c t .L1544
1022e1a0 t udp_checksum_init
1022e230 T udp_rcv
1022e2c8 t .L1588
1022e304 t .L1562
1022e308 t .L1555
1022e330 t .L1593
1022e390 t .L1594
1022e414 t .L1595
1022e4a8 t .L1596
1022e4e0 t get_udp_sock
1022e584 T udp_get_info
1022e6cc T udp_v4_lookup
1022e718 T arp_mc_map
1022e7cc t arp_hash
1022e7f8 t arp_constructor
1022e87c t .L1541
1022e8b4 t .L1549
1022e93c t .L1566
1022e95c t .L1567
1022e988 t .L1568
1022e988 t arp_error_report
1022e9ec t .L1574
1022ea00 t .L1576
1022ea00 t arp_solicit
1022eaf0 t .L1582
1022eb1c t .L1596
1022eb28 t arp_set_predefined
1022eba8 T arp_find
1022ecc8 t .L1630
1022ecdc t .L1648
1022ecf4 t .L1623
1022ed2c t .L1649
1022ed3c t .L1650
1022edc8 t .L1612
1022eddc T arp_bind_neighbour
1022eddc t .L1651
1022eea4 T arp_send
1022eeec t .L1663
1022f070 t .L1676
1022f0a4 t .L1684
1022f0b8 t .L1685
1022f0f0 t .L1686
1022f0f0 t parp_redo
1022f114 T arp_rcv
1022f184 t .L1693
1022f1ac t .L1748
1022f1b4 t .L1771
1022f1d4 t .L1703
1022f210 t .L1781
1022f21c t .L1782
1022f288 t .L1701
1022f3ec t .L1783
1022f478 t .L1726
1022f4a4 t .L1784
1022f4d4 t .L1785
1022f4dc t .L1786
1022f5ac t .L1787
1022f5f0 t .L1788
1022f630 T arp_req_set
1022f630 t .L1789
1022f7ec t .L1811
1022f7fc t .L1826
1022f884 t arp_state_to_flags
1022f8b0 t arp_req_get
1022f970 t .L1840
1022f99c T arp_req_delete
1022f99c t .L1842
1022f9d4 t .L1843
1022fa24 t .L1866
1022fa90 t .L1856
1022faa0 t .L1867
1022fb10 T arp_ioctl
1022fd10 t arp_get_info
10230048 T arp_ifdown
1023006c t icmp_xmit_lock_bh
1023007c t icmp_xmit_unlock_bh
1023008c T xrlim_allow
102300e0 t icmp_out_count
10230148 t icmp_glue_bits
102301e4 T icmp_reply
1023022c t .L1556
102302f8 t .L1576
10230340 t .L1567
102303d8 t .L1577
102303e0 T icmp_send
102305b8 t .L1619
10230728 t .L1624
102307a8 t icmp_unreach
102307e8 t .L1625
10230918 t .L1675
102309e8 t icmp_redirect
10230a14 t .L1676
10230a60 t .L1686
10230a60 t icmp_echo
10230a80 t .L1688
10230ab0 t .L1690
10230ab0 t icmp_timestamp
10230ae4 t .L1691
10230b7c t .L1693
10230b7c t icmp_address
10230b80 t icmp_address_reply
10230c24 t .L1711
10230c44 t .L1695
10230c68 t .L1722
10230cbc t .L1723
10230cd0 t icmp_discard
10230cd4 T icmp_rcv
10230d80 t .L1738
10230da8 t .L1745
10230e64 t inet_alloc_ifa
10230eb8 T in_dev_finish_destroy
10230f28 t .L1110
10230f50 t .L1106
10230f70 t .L1114
10230f78 T inetdev_init
10230f78 t .L1115
10230fb4 t .L1117
10231120 t .L1122
10231138 t .L1137
10231140 t .L1138
10231144 t inetdev_destroy
10231180 t .L1140
1023125c t .L1157
1023127c t .L1163
10231290 t .L1145
102312a8 t .L1164
102312b0 t .L1165
102312b4 T inet_addr_onlink
10231320 t inet_del_ifa
10231384 t .L1185
1023141c t .L1212
1023145c t .L1224
10231550 t .L1190
10231568 t .L1225
10231570 t .L1226
10231574 t inet_insert_ifa
102315b0 t .L1228
102317a4 t .L1233
102317bc t .L1267
102317c4 t .L1268
102317c8 t inet_set_ifa
1023180c t .L1271
102318f8 t .L1276
10231910 t .L1289
10231918 t .L1290
1023191c T inetdev_by_index
10231968 T inet_ifa_byprefix
102319ac t .L1297
10231a34 t .L1302
10231a4c t .L1319
10231a54 t .L1320
10231a58 T devinet_ioctl
10231c14 t .L1353
10231ce8 t .L1459
10231f1c t .L1460
10231f48 t .L1461
10231fb0 t .L1462
10232028 t inet_gifconf
102320b0 t .L1474
10232120 t .L1485
10232130 T inet_select_addr
10232214 T register_inetaddr_notifier
10232238 T unregister_inetaddr_notifier
1023225c t inetdev_event
102322a0 t .L1537
10232318 t .L1544
1023234c t .L1548
10232358 t .L1583
102323d8 t .L1584
102323e0 t .L1585
102323e8 t .L1586
10232450 t .L1542
10232468 t .L1587
10232470 t .L1588
10232474 T inet_forward_change
102324d4 t devinet_sysctl_forward
10232538 t .L1602
1023255c t .L1607
10232560 t devinet_sysctl_register
10232648 t .L1608
10232668 t .L1623
10232680 t devinet_sysctl_unregister
102326b0 T inet_sock_destruct
102326c4 t .L1539
10232710 t .L1573
10232738 t .L1547
10232784 t .L1574
10232850 t .L1538
10232870 t .L1575
10232890 T inet_sock_release
10232890 t .L1576
1023291c t .L1580
10232930 T inet_setsockopt
10232930 t .L1582
10232960 T inet_getsockopt
10232990 t inet_autobind
10232acc T inet_listen
10232bf0 t inet_create
10232e40 T inet_release
10232eb4 t inet_bind
1023312c T inet_dgram_connect
102331c4 t inet_wait_for_connect
1023335c T inet_stream_connect
102335e8 T inet_accept
10233680 t .L1835
1023372c t .L1847
10233734 t inet_getname
102337a0 T inet_recvmsg
10233804 T inet_sendmsg
10233878 T inet_shutdown
10233a40 t inet_ioctl
10233e9c t .L1899
10233f68 t .L2122
10233f74 t .L2123
10233f80 t .L2124
10233f9c t .L2125
10233fd8 t .L2126
10233fe0 t ip_ma_put
1023400c t .L1111
1023403c t .L1114
10234048 t .L1117
10234050 t .L1118
10234050 t ip_mc_filter_add
10234084 t .L1120
102340a0 t .L1122
102340a0 t ip_mc_filter_del
102340d4 t .L1124
102340f0 t .L1126
102340f0 t igmp_group_dropped
1023411c t igmp_group_added
1023412c t .L1130
10234150 T ip_mc_inc_group
10234150 t .L1132
1023418c t .L1134
10234278 t .L1139
10234290 t .L1162
10234298 t .L1163
1023429c T ip_mc_dec_group
102342d8 t .L1165
1023438c t .L1170
102343a4 t .L1188
102343ac t .L1189
102343b0 T ip_mc_down
102343e4 t .L1191
10234434 t .L1196
1023444c t .L1206
10234454 t .L1207
10234458 T ip_mc_up
1023448c t .L1209
102344dc t .L1214
102344f4 t .L1224
102344fc t .L1225
10234500 T ip_mc_destroy_dev
1023453c t .L1227
102345d8 t .L1232
102345f0 t .L1251
102345f8 t .L1252
102345fc t ip_mc_find_dev
102346f4 T ip_mc_join_group
1023478c t .L1270
1023487c t .L1287
102348a4 t .L1297
102348e8 T ip_mc_leave_group
102348e8 t .L1298
102349d0 t .L1307
102349fc t .L1318
10234a10 T ip_mc_drop_socket
10234a84 t .L1324
10234ac4 T ip_check_mc
10234ac4 t .L1331
10234af0 t ipv4_sysctl_forward
10234b54 t ipv4_sysctl_forward_strategy
10234bcc T fib_flush
10234c20 t fib_get_procinfo
10234d1c T ip_dev_find
10234db4 t .L1557
10234dc4 t .L1563
10234df0 T inet_addr_type
10234e70 t .L1568
10234ebc T fib_validate_source
10234ebc t .L1574
10234f88 t .L1581
10235008 t .L1624
10235018 t .L1589
1023504c t .L1594
102350f0 t .L1625
102350fc t .L1603
10235120 t .L1626
10235130 t .L1592
10235130 t .L1627
10235140 t .L1628
10235148 T ip_rt_ioctl
1023521c t .L1639
10235284 t .L1657
102352d8 t fib_magic
10235424 t fib_add_ifaddr
102354e4 t .L1676
1023557c t .L1692
1023559c t .L1693
102355a0 t fib_del_ifaddr
10235604 t .L1698
1023566c t .L1709
10235670 t .L1710
10235674 t .L1711
10235678 t .L1694
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10248360 ? exit_this_scsi_driver
10248384 ? exit_st
102484d0 ? exit_sd
10248710 ? exit_sr
102487e0 ? exit_sg
1024884c ? cdrom_exit
10248874 ? af_unix_exit
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1025c0dc r list___0
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1027395c A _etext
10274000 D boot_args
10274000 D data_start
10274010 D $global$
10274014 D root_mountflags
10274018 d argv_init
10274040 d envp_init
10274068 D loops_per_jiffy
1027406c d argv___0
10274074 D child_reaper
10274078 D system_utsname
10274200 D linux_banner
10274204 d pdc_cons
10274230 D hlt_counter
10274234 d sysrom_resource
10274250 d sysram_resource
1027426c d data_resource
10274288 d code_resource
102742a4 d pdcdata_resource
102742c0 d mem_limit
102742c4 d space_id
102752c4 d free_space_ids
102752c8 d dirty_space_ids
102752cc d sid_lock
10276000 d cpu_drivers_for
10276048 d fallback_cpu_hpa
10276054 D kstack_depth_to_print
10276058 D cpu_lpmc
1027605c d irq_lock
10276060 d cpu_irq_actions
10276360 D cpu_irq_region
10276384 D irq_region
102763c4 d pdc_lock
102763c8 d hw_type_name
10276408 d hp_hardware_list
1027b388 d hp_cpu_type_mask_list
1027b5a0 D cpu_name_version
1027b5f0 D pdc_type
1027b5f4 d pa_drivers
1027b5f8 d proc_gsc_root
1027b5fc d pcxl_used_bytes
1027b600 d pcxl_used_pages
1027b604 D pcxl_dma_ops
1027b628 D pcx_dma_ops
1027c000 d hpmc_stack
10280000 d hpmc_iodc_buf
10288000 d hpmc_raddr
10288080 D hpmc_pim_data
10289000 D pci_post_reset_delay
10289004 D hba_list
10289008 D hba_count
1028900c D pcibios_fixups
10289018 d def_kbd_ops
10289038 D kbd_ops
1028903c d lba_drivers_for
10289084 d lba_cfg_ops
1028909c D lba_bios_ops
102890a4 d lba_astro_port_ops
102890bc d iosapic_irq_ops
102890cc d sba_drivers_for
10289138 d sba_mem_ratio
1028913c d sba_ops
10289160 d astro_rev___0
1028916c d ike_rev___1
10289178 d ccio_drivers_for
102891e4 d ccio_mem_ratio
102891e8 d hint_lookup
102891f8 d ccio_ops
1028921c d sio_dev
10289234 d superio_irq_ops
10289244 d expected_device
10289280 D securebits
10289284 D init_tasks
102892c0 D runqueue_lock
10289300 D tasklist_lock
10289304 d runqueue_head
10289340 d aligned_data
10289380 d stat_nam___0
102893c0 D dma_spin_lock
10289400 D lastpid_lock
10289404 d next_safe___0
10289440 D mmlist_lock
10289480 d ident_map
10289500 D default_exec_domain
1028951c d exec_domains
10289520 d exec_domains_lock
10289524 D log_wait
10289530 D console_loglevel
10289534 D default_message_loglevel
10289538 D minimum_console_loglevel
1028953c D default_console_loglevel
10289540 D console_lock
10289544 d preferred_console
10289548 d msg_level___0
1028954c d ime_list
10289554 d ime_lock
10289558 D do_get_fast_time
1028955c d firsttime___0
10289560 D pps_jitter
10289564 D pps_stabil
10289568 D pps_valid
1028956c D pps_shift
10289570 d softirq_mask_lock
10289574 D global_bh_lock
10289578 D ioport_resource
10289594 D iomem_resource
102895b0 d resource_lock
102895b4 d reserved___0
102895b8 d maxolduid
102895bc d root_table_header
102895c8 D proc_sys_file_operations
10289608 d proc_sys_inode_operations
10289648 d root_table
102897a8 d kern_table
10289c4c d vm_table
10289dd8 d proc_table
10289e04 d fs_table
1028a098 d debug_table
1028a0c4 d dev_table
1028a0f0 D cap_bset
1028a0f4 D task_capability_lock
1028a0f8 D tick
1028a0fc D tickadj
1028a100 D tq_timer
1028a108 D tq_immediate
1028a110 D time_state
1028a114 D time_status
1028a118 D time_constant
1028a11c D time_tolerance
1028a120 D time_precision
1028a124 D time_maxerror
1028a128 D time_esterror
1028a12c D time_freq
1028a130 D timerlist_lock
1028a134 D tqueue_lock
1028a138 d count___0
1028a13c D xtime_lock
1028a140 d uidhash_lock
1028a144 D root_user
1028a15c D max_queued_signals
1028a160 D overflowuid
1028a164 D overflowgid
1028a168 D fs_overflowuid
1028a16c D fs_overflowgid
1028a170 D C_A_D
1028a174 D notifier_lock
1028a178 D uts_sem
1028a18c D hotplug_path
1028a28c d dev_probe_sem
1028a2a0 d tq_context
1028a2a8 d context_task_wq
1028a2b4 d context_task_done
1028a2c0 D pgt_cache_water
1028a2c8 D protection_map
1028a308 D page_cache_size
1028a30c D pagecache_lock
1028a310 D pagemap_lru_lock
1028a314 d file_shared_mmap
1028a320 d file_private_mmap
1028a32c D vmlist_lock
1028a330 d slab_break_gfp_order
1028a334 d cache_sizes
1028a3dc d cache_cache
1028a440 d clock_searchp
1028a444 D freepages
1028a450 D nr_async_pages
1028a454 D buffer_mem
1028a460 D page_cache
1028a46c D pager_daemon
1028a478 D kswapd_wait
1028a484 D kswapd_done
1028a490 d recalc___0
1028a494 D kreclaimd_wait
1028a4a0 d zone_names
1028a4ac d zone_balance_ratio
1028a4b8 d zone_balance_min
1028a4c4 d zone_balance_max
1028a4d0 d swap_aops
1028a4e8 D swapper_space
1028a518 D swaplock
1028a51c D swap_list
1028a524 d least_priority___0
1028a528 d overflow___1
1028a52c D numnodes
1028a530 D contig_page_data
1028bb78 D shmem_inodes
1028bb80 d shmem_ilock
1028bb84 d shmem_aops
1028bb9c d shmem_file_operations
1028bbdc d shmem_inode_operations
1028bc1c d shmem_dir_operations
1028bc5c d shmem_dir_inode_operations
1028bc9c d shmem_ops
1028bcc4 d shmem_private_vm_ops
1028bcd0 d shmem_shared_vm_ops
1028bcdc d shmem_fs_type
1028bcf8 D generic_ro_fops
1028bd38 d chrdevs_lock
1028bd3c d def_chr_fops
1028bd7c d bad_sock_fops
1028bdbc D files_stat
1028bdc8 d anon_list
1028bdd0 d free_list
1028bdd8 D files_lock
1028bddc d old_max___0
1028bde0 d buffersize_index
1028be24 d hash_table_lock
1028be28 d lru_list_lock
1028be2c d unused_list_lock
1028be30 d buffer_wait
1028be3c D buffermem_pages
1028be40 D bdf_prm
1028be64 D bdflush_min
1028be88 D bdflush_max
1028beac d page_uptodate_lock___0
1028beb0 D bdflush_tsk
1028beb4 d mount_sem
1028bec8 D max_super_blocks
1028becc D super_blocks
1028bed4 d file_systems_lock
1028bed8 d vfsmntlist
1028bee0 d need_escaping
1028bee4 d fs_info
1028bf24 d nfs_info
1028bf90 d bdev_lock
1028bf94 D def_blk_fops
1028bfd4 d binfmt_lock
1028bfd8 D read_fifo_fops
1028c018 D write_fifo_fops
1028c058 D rdwr_fifo_fops
1028c098 D read_pipe_fops
1028c0d8 D write_pipe_fops
1028c118 D rdwr_pipe_fops
1028c158 d pipefs_dentry_operations
1028c170 d pipefs_ops
1028c198 d .LC8
1028c1a4 d pipe_fs_type
1028c1bc d arbitration_lock
1028c1c0 D page_symlink_inode_operations
1028c200 d band_table
1028c218 d fasync_lock
1028c21c D def_fifo_fops
1028c25c D leases_enable
1028c260 D lease_break_time
1028c264 D file_lock_list
1028c26c d blocked_list
1028c274 D dcache_lock
1028c278 d dentry_unused
1028c280 D dentry_stat
1028c298 d .LC6
1028c2a4 d inode_in_use
1028c2ac d inode_unused
1028c2b4 d anon_hash_chain
1028c2bc D inode_lock
1028c2c0 d counter___4
1028c2c4 d bad_file_ops
1028c304 D bad_inode_ops
1028c344 D dir_notify_enable
1028c348 d dn_lock
1028c34c d som_format
1028c364 D script_format
1028c37c d elf_format
1028c394 d proc_sops
1028c3bc d proc_root_operations
1028c3fc d proc_root_inode_operations
1028c43c D proc_root
1028c488 d proc_maps_operations
1028c4c8 d proc_info_file_operations
1028c508 d proc_mem_operations
1028c548 d proc_mem_inode_operations
1028c588 d proc_pid_link_inode_operations
1028c5c8 d base_stuff
1028c688 d pid_fd_dentry_operations
1028c6a0 d pid_dentry_operations
1028c6b8 d pid_base_dentry_operations
1028c6d0 d proc_fd_operations
1028c710 d proc_fd_inode_operations
1028c750 d proc_base_operations
1028c790 d proc_base_inode_operations
1028c7d0 d proc_self_inode_operations
1028c810 d proc_file_operations
1028c850 d proc_link_inode_operations
1028c890 d proc_dentry_operations
1028c8a8 d proc_dir_operations
1028c8e8 d proc_dir_inode_operations
1028c928 d task_state_array
1028c940 D proc_kmsg_operations
1028c980 d proc_profile_operations
1028c9c0 d simple_ones___1
1028ca58 D proc_kcore_operations
1028ca98 d proc_fs_type
1028cab0 D warn_no_part
1028cab4 d check_part
1028cabc d first_time___0
1028cac0 d nibblemap
1028cb00 d ext2_filetype_table
1028cb08 D ext2_dir_operations
1028cb48 d ext2_max_sizes
1028cbb8 D ext2_file_operations
1028cbf8 D ext2_file_inode_operations
1028cc38 D ext2_aops
1028cc50 d ext2_type_by_mode
1028cc60 D ext2_dir_inode_operations
1028cca0 d ext2_sops
1028ccc8 d ext2_fs_type
1028cce0 D ext2_fast_symlink_inode_operations
1028cd20 d isofs_sops
1028cd48 d isofs_dentry_ops
1028cd78 d isofs_aops
1028cd90 d iso9660_fs_type
1028cda8 D isofs_dir_operations
1028cde8 D isofs_dir_inode_operations
1028ce28 d .LC0
1028ce58 D isofs_symlink_aops
1028ce70 d nfs_sops
1028ce98 D nfs_rpcstat
1028cec0 d nfs_version
1028cecc D nfs_program
1028cee0 d nfs_fs_type
1028cef8 D nfs_file_operations
1028cf38 D nfs_file_inode_operations
1028cf78 D nfs_file_aops
1028cf90 D nfs_wreq_lock
1028cf94 d nfs_nr_requests
1028cf98 D nfs_dir_operations
1028cfd8 D nfs_dir_inode_operations
1028d018 D nfs_dentry_operations
1028d030 D nfs_symlink_inode_operations
1028d070 D nfs_v2_clientops
1028d0cc d nfs_errtbl
1028d1bc d nfs_procedures
1028d324 D nfs_version2
1028d330 d flushd_queue
1028d338 D nfs_flushd_lock
1028d33c d nfs_delete_queue
1028d344 d mnt_procedures
1028d36c d mnt3_procedures
1028d394 d mnt_version1
1028d3a0 d mnt_version3
1028d3ac d mnt_version
1028d3bc D mnt_program
1028d3d0 d nlm_cookie
1028d3d4 d nlm_host_sema
1028d3e8 d nlmsvc_sema
1028d3fc d lockd_start
1028d410 d lockd_exit
1028d41c D nlm_timeout
1028d420 d warned___1
1028d424 d warned___2
1028d428 d nlmsvc_version1
1028d438 d nlmsvc_version3
1028d448 d nlmsvc_version
1028d458 D nlmsvc_program
1028d474 D nlmsvc_procedures
1028d794 d nlm_file_sema
1028d7a8 d nsm_procedures
1028d834 d nsm_version1
1028d840 d nsm_version
1028d848 D nsm_program
1028d85c d nlm_procedures
1028da3c d nlm_version1
1028da48 d nlm_version3
1028da54 d nlm_versions
1028da64 D nlm_program
1028da78 D msg_ctlmax
1028da7c D msg_ctlmnb
1028da80 D msg_ctlmni
1028da84 d msg_bytes
1028da88 d msg_hdrs
1028da8c D sem_ctls
1028da9c D shm_ctlmax
1028daa0 D shm_ctlall
1028daa4 D shm_ctlmni
1028daa8 d shm_file_operations
1028dae8 d shm_vm_ops
1028e000 d init_mmap
1028e040 d init_fs
1028e064 d init_files
1028e204 d init_signals
1028e60c D init_mm
1028f000 D swapper_pg_dir
10290000 D pg0
10292000 D tq_disk
10292008 D io_request_lock
1029200c d .LC15
10292034 D rd_size
10292038 D rd_blocksize
1029203c D rd_prompt
10292040 D mount_initrd
10292044 d initrd_fops
10292084 d fd_fops
10292098 d .LC36
1029209c d badmagic___0
102920a0 d badtty___1
102920a4 d tty_fops
102920e4 d hung_up_tty_fops
10292124 d tty_sem
10292138 d baud_table
102921b4 d n_baud_table
102921b8 D tty_ldisc_N_TTY
102921f8 d mem_fops
10292238 d kmem_fops
10292278 d null_fops
102922b8 d port_fops
102922f8 d zero_fops
10292338 d full_fops
10292378 d memory_fops
102923b8 d raw_fops
102923f8 d raw_ctl_fops
10292438 d misc_list
10292450 d misc_sem
10292464 d misc_fops
102924a4 d random_read_wakeup_thresh
102924a8 d random_write_wakeup_thresh
102924ac d poolinfo_table
1029256c d random_read_wait
10292578 d random_write_wait
10292584 D random_fops
102925c4 D urandom_fops
10292604 D random_table
10292738 D keyboard_type
1029273c D kd_mksound
10292740 d vt_activate_queue
1029274c d vcs_fops
1029278c d translations
10292f8c D dfont_unicount
1029308c D dfont_unitable
102932e0 d blankinterval
102932e4 D want_console
102932e8 D con_task_queue
102932f0 D color_table
10293300 D default_red
10293340 D default_grn
10293380 D default_blu
102933c0 D con_buf_sem
102933d4 d error___4
102933d8 D vt_console_driver
10293404 D console_tasklet
10293418 d sel_start
1029341c d inwordLut
1029343c d serial_version
10293440 d serial_revdate
10293444 d serial_name
10293448 d tq_serial
10293450 d uart_config
10293504 d rs_table
10296304 d tmp_buf_sem
10296318 d timedia_single_port
10296324 d timedia_dual_port
10296360 d timedia_quad_port
10296390 d timedia_eight_port
102963ac d timedia_data
102963d4 d pci_boards
102971c0 d info___1
102971c4 d sercons
102971f0 D keypress_wait
102971fc d npadch
10297200 d kbd
10297204 d key_handler
10297244 d spec_fn_table
10297294 d buf___0
10297298 d ret_diacr
102972a0 d pad_chars___1
102972a4 d app_map___2
102972a8 d cur_chars___3
102972ac d ledstate
102972b0 D keyboard_tasklet
102972c4 D plain_map
102973c4 D shift_map
102974c4 D altgr_map
102975c4 D ctrl_map
102976c4 D shift_ctrl_map
102977c4 D alt_map
102978c4 D ctrl_alt_map
102979c4 D key_maps
10297dc4 D keymap_count
10297dc8 D func_buf
10297e64 D funcbufptr
10297e68 D funcbufsize
10297e6c D funcbufleft
10297e70 D func_table
10298270 D accent_table
10298570 D accent_table_size
10298574 d gsc_ps2_kbd_ops
10298594 d keycode_translate
10298694 D hp_ps2kbd_sysrq_xlate
10298714 d high_keys
1029873c d e0_keys
102987bc D hp_plain_map
102988bc D hp_shift_map
102989bc D hp_altgr_map
10298abc D hp_ctrl_map
10298bbc D hp_shift_ctrl_map
10298cbc D hp_alt_map
10298dbc D hp_ctrl_alt_map
10298ebc d hil_kbd_ops
10298edc D sysrq_enabled
10298ee0 d devfs_handle
10298ee4 d lp_count
10298ee8 d lp_fops
10298f28 d parport_nr
10298f34 d reset
10298f38 d parport_ptr
10298f3c d lp_driver
10298f4c d gen_rtc_opened
10298f50 d gen_uie_on
10298f54 d gen_uie_data
10298f58 d gen_rtc_wait
10298f64 d gen_rtc_fops
10298fa4 d gen_rtc_dev
10298fbc d t21142_csr13
10298fc8 D t21142_csr14
10298fd4 d t21142_csr15
10298fe0 d eeprom_fixups
102991d8 d block_name
102991f0 d last_mediatable___0
102991f4 d last_ee_data___1
102991f8 d controller_index___2
102991fc d version
10299234 d max_interrupt_work
10299238 d rx_copybreak
1029923c d csr0
10299240 D tulip_debug
10299244 D tulip_tbl
10299370 d tulip_pci_tbl
102995d8 D t21040_csr13
102995e8 D t21041_csr13
102995f4 D t21041_csr14
10299600 D t21041_csr15
1029960c d last_phys_addr___1
10299614 d board_idx___4
10299618 d .LC63
10299628 d tulip_driver
10299648 d eth7_dev
10299778 d eth6_dev
102998a8 d eth5_dev
102999d8 d eth4_dev
10299b08 d eth3_dev
10299c38 d eth2_dev
10299d68 d eth1_dev
10299e98 d eth0_dev
10299fc8 D loopback_dev
1029a0f8 D dev_base
1029a0fc D dev_base_lock
1029a100 d version
1029a104 d i596_debug
1029a108 d rx_copybreak
1029a10c D init_setup
1029a11c d dma_consistent
1029a120 d rx_ring_size
1029a124 d ticks_limit
1029a128 d max_cmd_backlog
1029a12c D parport_default_timeslice
1029a130 D parport_default_spintime
1029a134 d portlist
1029a138 d portlist_tail
1029a13c D parportlist_lock
1029a140 d driver_chain
1029a144 D driverlist_lock
1029a148 d dead_ops
1029a1ac d parport_default_sysctl_table
1029a33c D parport_gsc_ops
1029a3a0 d parport_drivers_for
1029a3f0 d device_request_lock
1029a3f4 d scsi_bhqueue_lock
1029a3f8 d next_no___0
1029a3fc D scsi_hosts
1029a400 D scsi_host_no_list
1029a404 D scsi_hostlist
1029a408 D scsi_devicelist
1029a40c D max_scsi_hosts
1029a410 D next_scsi_host
1029a414 d generic_sense___0
1029a41c d tur_command___1
1029a424 d generic_sense
1029a42c d allocator_request_lock
1029a430 d dma_malloc_freelist
1029a434 d dma_sectors
1029a438 D scsi_dma_free_sectors
1029a43c D scsi_need_isa_buffer
1029a440 d dma_malloc_pages
1029a444 d device_list
1029a904 d max_scsi_luns
1029a908 d ncr_debug
1029a90c D sym53c8xx_lock
1029a910 d mp0
1029a9cc d first_host
1029a9d0 d driver_setup
1029aa70 d div_10M
1029aa8c d Symbios_trailer___1
1029aa94 d driver_template
1029ab00 d hosts_used
1029ab04 d lasi_scsi_drivers
1029ab70 D sim700_debug
1029ab74 d sim700_errors
1029ab78 d sim700_intrs
1029ab7c d ignore_ids
1029ab80 d opt_nodisc
1029ab84 d opt_noneg
1029ab88 d hosttype
1029ab8c d opt_base
1029ab90 d opt_irq
1029ab94 d dma_consistent
1029ab98 d SCRIPT
1029b04c d A_int_bad_msg1_used
1029b050 d A_int_bad_msg2_used
1029b054 d A_int_bad_msg3_used
1029b058 d A_int_cmd_bad_phase_used
1029b05c d A_int_cmd_complete_used
1029b060 d A_int_data_bad_phase_used
1029b064 d A_int_disc1_used
1029b068 d A_int_disc2_used
1029b06c d A_int_disc3_used
1029b070 d A_int_msg_sdtr1_used
1029b074 d A_int_msg_sdtr2_used
1029b078 d A_int_msg_sdtr3_used
1029b07c d A_int_no_msgout1_used
1029b080 d A_int_no_msgout2_used
1029b084 d A_int_no_msgout3_used
1029b088 d A_int_not_cmd_complete_used
1029b08c d A_int_not_rej_used
1029b090 d A_int_rej_msg1_used
1029b094 d A_int_rej_msg2_used
1029b098 d A_int_rej_msg3_used
1029b09c d A_int_resel_not_msgin_used
1029b0a0 d A_int_reselected_used
1029b0a4 d A_int_sel_no_ident_used
1029b0a8 d A_int_sel_not_cmd_used
1029b0ac d A_int_selected_used
1029b0b0 d A_int_status_not_msgin_used
1029b0b4 d A_int_test1a_used
1029b0b8 d A_int_test1b_used
1029b0b8 d A_msg_reject_used
1029b0c4 d A_reselected_identify_used
1029b0c8 d A_targ_cdb_used
1029b0cc d A_targ_cdb_cnt_used
1029b0d0 d A_targ_din_script_used
1029b0d4 d A_targ_dout_script_used
1029b0d8 d A_targ_msgin_used
1029b11c d A_targ_msgout_used
1029b12c d A_targ_msgout_cnt_used
1029b13c d A_targ_select_used
1029b140 d A_targ_status_used
1029b144 d A_test1_dst_used
1029b148 d A_test1_src_used
1029b14c d LABELPATCHES
1029b20c d EXTERNAL_PATCHES
1029b20c d INSTRUCTIONS
1029b210 d PATCHES
1029b214 d EXTERNAL_PATCHES_LEN
1029b218 d process_issue_queue_running
1029b21c d driver_template
1029b290 d hosts_used
1029b294 d zalon_id
1029b2a0 d pdc_result
1029b320 d zalon_scsi_drivers
1029b370 d ncr_debug
1029b374 D ncr53c8xx_lock
1029b378 d mp0
1029b434 d driver_setup
1029b4d4 d first_host
1029b4d8 d the_template
1029b4dc d div_10M
1029b4f8 d device_tab
1029b548 d driver_template
1029b5b4 d max_buffers
1029b5b8 d st_dev_arr_lock
1029b5bc d st_buffers
1029b5c0 d st_buffer_size
1029b5c4 d st_write_threshold
1029b5c8 d st_max_buffers
1029b5cc d st_max_sg_segs
1029b5d0 d scsi_tapes
1029b5d4 d st_template
1029b61c d reject_list
1029b67c d st_fops
1029b6bc d formats___0
1029b6cc d st_registered
1029b6d0 d sd_template
1029b718 d sd_fops
1029b72c d sd_gendisk
1029b75c d sd_gendisks
1029b760 d sr_template
1029b7a8 d sr_dops
1029b7e8 d loadmech___0
1029b808 d xa_test
1029b80c d sg_version_str
1029b810 d sg_version_num
1029b814 D sg_big_buff
1029b818 d def_reserved_size
1029b81c d sg_pool_secs_avail
1029b820 d dummy_cmdp
1029b824 d sg_dev_arr_lock
1029b828 d sg_template
1029b870 d sg_dev_arr
1029b874 d sg_fops
1029b8b4 d sg_registered___0
1029b8b8 d allow_ops
1029b8c4 d sg_proc_sgp
1029b8c8 d sg_proc_sg_dirname
1029b8cc d sg_proc_leaf_names
1029b8f0 d sg_proc_leaf_reads
1029b914 d sg_proc_leaf_writes
1029b938 d autoclose
1029b93c d lockdoor
1029b940 D cdrom_fops
1029b954 D cdrom_table
1029ba88 D cdrom_cdrom_table
1029bae0 D cdrom_root_table
1029bb38 D pci_root_buses
1029bb40 D pci_devices
1029bb48 d pci_drivers
1029bb50 d pci_compat_driver
1029bb70 d pci_lock
1029bb74 d pci_class_numbers
1029bc20 d pci_class_names
1029bd78 d proc_bus_pci_operations
1029bdb8 d linear_personality
1029bde0 d raid0_personality
1029be08 d retry_list_lock
1029be0c D raid1_retry_list
1029be10 d raid1_personality
1029be38 d raid5_personality
1029be60 d xor_block_8regs
1029be7c d xor_block_32regs
1029be98 d xor_block_8regs_p
1029beb4 d xor_block_32regs_p
1029bed0 d sysctl_speed_limit_min
1029bed4 d sysctl_speed_limit_max
1029bed8 d raid_table
1029bf5c d raid_dir_table
1029bfb4 d raid_root_table
1029c00c d md_gendisk
1029c03c d all_mddevs
1029c044 d device_names
1029c04c d nomem___0
1029c054 d all_raid_disks
1029c05c d pending_raid_disks
1029c064 d md_fops
1029c078 D resync_wait
1029c084 D md_notifier
1029c090 d name___1
1029c094 D proc_runway_root
1029c098 D proc_gsc_root
1029c09c d dino_drivers_for
1029c1bc d dino_cfg_ops
1029c1d4 D dino_port_ops
1029c1ec d dino_irq_ops
1029c1fc D dino_bios_ops
1029c204 d busdev_drivers_for
1029c270 d busdev_list
1029c274 D busdev_irq_ops
1029c284 d wax_driver_for
1029c2cc d lan_drivers_for
1029c338 d serial_drivers_for
1029c3c8 d hil_drivers_for
1029c410 d wax_eisa_drivers_for
1029c47c d wax_port_ops
1029c4c0 d socket_file_ops
1029c500 d sockets_in_use
1029c540 d sockfs_ops
1029c568 d .LC16
1029c574 d sock_fs_type
1029c58c d sockfs_dentry_operations
1029c5a4 d nargs
1029c5c0 D sysctl_wmem_max
1029c5c4 D sysctl_rmem_max
1029c5c8 D sysctl_wmem_default
1029c5cc D sysctl_rmem_default
1029c5d0 D sysctl_optmem_max
1029c5d4 D net_big_sklist_lock
1029c5d8 D sysctl_hot_list_len
1029c5dc d count___0
1029c5e0 D core_table
1029c848 D if_port_text
1029c864 d ptype_all
1029c868 d netdev_chain
1029c86c D netdev_nit
1029c870 D netdev_max_backlog
1029c874 D no_cong_thresh
1029c878 D no_cong
1029c87c D lo_cong
1029c880 D mod_cong
1029c884 d net_bh_lock___0
1029c888 d dev_boot_phase
1029c88c d dst_total
1029c890 d dst_lock
1029c894 d dst_gc_timer_inc
1029c898 d dst_gc_timer
1029c8ac D dst_dev_notifier
1029c8b8 d neigh_tbl_lock
1029c8bc D neigh_sysctl_template
1029cd0c D rtnl_sem
1029cd20 d net_rand_seed
1029cd24 D net_msg_cost
1029cd28 D net_msg_burst
1029cd2c d ratelimit_lock___0
1029cd30 d toks___1
1029cd34 D ether_table
1029cd60 D e802_table
1029cd90 D qdisc_tree_lock
1029cd94 D noop_qdisc_ops
1029cdd8 D noop_qdisc
1029ce38 D noqueue_qdisc_ops
1029ce78 D noqueue_qdisc
1029ced8 d pfifo_fast_ops
1029cf40 D ip_rt_min_delay
1029cf44 D ip_rt_max_delay
1029cf48 D ip_rt_gc_timeout
1029cf4c D ip_rt_gc_interval
1029cf50 D ip_rt_gc_min_interval
1029cf54 D ip_rt_redirect_number
1029cf58 D ip_rt_redirect_load
1029cf5c D ip_rt_redirect_silence
1029cf60 D ip_rt_error_cost
1029cf64 D ip_rt_error_burst
1029cf68 D ip_rt_gc_elasticity
1029cf6c D ip_rt_mtu_expires
1029cf70 D ip_rt_min_pmtu
1029cf74 D ip_rt_min_advmss
1029cf78 D ipv4_dst_ops
1029cfa4 D ip_tos2prio
1029cfb4 d rt_flush_lock
1029cfb8 d expire___1
1029cfbc d rt_peer_lock___5
1029cfc0 d ip_fb_id_lock___6
1029cfc4 d mtu_plateau
1029cfd8 D ipv4_route_table
1029d2f0 D inet_peer_idlock
1029d2f4 d peer_fake_node
1029d31c d peer_root
1029d320 d peer_pool_lock
1029d324 D inet_peer_threshold
1029d328 D inet_peer_minttl
1029d32c D inet_peer_maxttl
1029d330 D inet_peer_unused_tailp
1029d334 D inet_peer_unused_lock
1029d338 d peer_periodic_timer
1029d34c D inet_peer_gc_mintime
1029d350 D inet_peer_gc_maxtime
1029d354 d tcp_protocol
1029d36c d udp_protocol
1029d384 d icmp_protocol
1029d39c D inet_protocol_base
1029d3a0 D sysctl_ipfrag_high_thresh
1029d3a4 D sysctl_ipfrag_low_thresh
1029d3a8 D sysctl_ipfrag_time
1029d3ac d ipfrag_lock
1029d3b0 D ip_frag_nqueues
1029d3b4 D ip_frag_mem
1029d3b8 D sysctl_ip_dynaddr
1029d3bc D sysctl_ip_default_ttl
1029d3c0 d ip_packet_type
1029d3d4 D ip_ra_lock
1029d3d8 D sysctl_tcp_fin_timeout
1029d3dc D tcp_orphan_count
1029d3e0 D sysctl_tcp_wmem
1029d3ec D sysctl_tcp_rmem
1029d3f8 d new_state
1029d408 D sysctl_tcp_timestamps
1029d40c D sysctl_tcp_window_scaling
1029d410 D sysctl_tcp_sack
1029d414 D sysctl_tcp_fack
1029d418 D sysctl_tcp_reordering
1029d41c D sysctl_tcp_ecn
1029d420 D sysctl_tcp_dsack
1029d424 D sysctl_tcp_app_win
1029d428 D sysctl_tcp_adv_win_scale
1029d42c D sysctl_tcp_stdurg
1029d430 D sysctl_tcp_rfc1337
1029d434 D sysctl_tcp_max_orphans
1029d438 D sysctl_tcp_retrans_collapse
1029d43c D sysctl_tcp_syn_retries
1029d440 D sysctl_tcp_synack_retries
1029d444 D sysctl_tcp_keepalive_time
1029d448 D sysctl_tcp_keepalive_probes
1029d44c D sysctl_tcp_keepalive_intvl
1029d450 D sysctl_tcp_retries1
1029d454 D sysctl_tcp_retries2
1029d480 d tcp_socket
1029d4c0 D tcp_hashinfo
1029d5c0 D sysctl_local_port_range
1029d5c8 D tcp_port_rover
1029d5cc D sysctl_max_syn_backlog
1029d5d0 D or_ipv4
1029d5e4 D ipv4_specific
1029d614 D tcp_prot
1029d6c0 D sysctl_tcp_tw_recycle
1029d6c4 D sysctl_tcp_max_tw_buckets
1029d6c8 D sysctl_tcp_syncookies
1029d6cc D sysctl_tcp_abort_on_overflow
1029d6d0 D tcp_tw_count
1029d6d4 d tcp_tw_death_row_slot
1029d6d8 d tw_death_lock
1029d6dc d tcp_tw_timer
1029d6f0 d tcp_twcal_hand
1029d6f4 d tcp_twcal_timer
1029d708 D raw_v4_lock
1029d70c D raw_prot
1029d7b0 D udp_hash_lock
1029d7b4 D udp_prot
1029d858 d arp_generic_ops
1029d878 d arp_hh_ops
1029d898 d arp_direct_ops
1029d8b8 D arp_broken_ops
1029d8d8 D arp_tbl
1029da90 d arp_packet_type
1029daa4 D icmp_err_convert
1029db24 D sysctl_icmp_echo_ignore_all
1029db28 D sysctl_icmp_echo_ignore_broadcasts
1029db2c D sysctl_icmp_ignore_bogus_error_responses
1029db30 D icmp_socket
1029db34 d icmp_xmit_holder
1029db38 D sysctl_icmp_destunreach_time
1029db3c D sysctl_icmp_timeexceed_time
1029db40 D sysctl_icmp_paramprob_time
1029db44 D sysctl_icmp_echoreply_time
1029db48 d icmp_pointers
1029dcc4 D ipv4_devconf
1029dcf8 d ipv4_devconf_dflt
1029dd2c D inetdev_lock
1029dd30 D ip_netdev_notifier
1029dd3c d devinet_sysctl
1029e0dc D inet_stream_ops
1029e11c D inet_dgram_ops
1029e15c D inet_family_ops
1029e16c D sysctl_igmp_max_memberships
1029e170 d tcp_retr1_max
1029e174 d ip_local_port_range_min
1029e17c d ip_local_port_range_max
1029e184 D ipv4_table
1029ea74 D fib_inetaddr_notifier
1029ea80 D fib_netdev_notifier
1029ea8c d fib_info_lock
1029ea90 d fib_props
1029eaf8 d type2flags___0
1029eb28 d fib_hash_lock
1029eb2c d fn_hash_last_dflt
1029eb30 D sysctl_unix_max_dgram_qlen
1029eb34 D unix_table_lock
1029eb38 d unix_nr_socks
1029eb3c d ordernum___0
1029eb40 D unix_stream_ops
1029eb80 D unix_dgram_ops
1029ebc0 D unix_family_ops
1029ebd0 d gc_current
1029ebd4 D unix_tot_inflight
1029ebd8 d unix_gc_sem___0
1029ebec D unix_table
1029ec44 D unix_root_table
1029ec9c D unix_net_table
1029ecf4 d destroy_wait
1029ed00 D xprt_sock_lock
1029ed04 D xprt_lock
1029ed08 D rpc_xprt_pending
1029ed10 d xid___1
1029ed14 d schedq
1029ed1c d childq
1029ed24 d delay_queue
1029ed2c d rpciod_idle
1029ed38 d rpciod_killer
1029ed44 d rpciod_sema
1029ed58 D rpc_queue_lock
1029ed5c D rpc_sched_lock
1029ed60 d rpciod_running
1029ed74 d auth_flavors
1029ed94 D rpc_credcache_lock
1029ed98 D authnull_ops
1029edc0 D authunix_ops
1029ede8 d authtab
1029ee08 D pmap_lock
1029ee0c d pmap_procedures
1029ee5c d pmap_version2
1029ee68 d pmap_version
1029ee74 D pmap_program
1029ee88 d inited___0
1029ee8c d proc_net_rpc
1029ee90 d debug_table
1029ef6c d sunrpc_table
1029efc4 D net_table
1029f0cc D __atomic_lock
1029f0d0 D _ctype
1029f1d0 ? __exitcall_exit_shmem_fs
1029f1d4 ? __exitcall_exit_pipe_fs
1029f1d8 ? __exitcall_exit_som_binfmt
1029f1dc ? __exitcall_exit_script_binfmt
1029f1e0 ? __exitcall_exit_elf_binfmt
1029f1e4 ? __exitcall_exit_proc_fs
1029f1e8 ? __exitcall_exit_ext2_fs
1029f1ec ? __exitcall_exit_iso9660_fs
1029f1f0 ? __exitcall_rs_fini
1029f1f4 ? __exitcall_tulip_cleanup
1029f1f8 ? __exitcall_parport_gsc_exit_module
1029f1fc ? __exitcall_exit_scsi
1029f200 ? __exitcall_exit_this_scsi_driver
1029f204 ? __exitcall_exit_this_scsi_driver
1029f208 ? __exitcall_exit_this_scsi_driver
1029f20c ? __exitcall_exit_st
1029f210 ? __exitcall_exit_sd
1029f214 ? __exitcall_exit_sr
1029f218 ? __exitcall_exit_sg
1029f21c ? __exitcall_cdrom_exit
1029f220 ? __exitcall_linear_exit
1029f224 ? __exitcall_raid0_exit
1029f228 ? __exitcall_raid1_exit
1029f22c ? __exitcall_raid5_exit
1029f230 ? __exitcall_af_unix_exit
1029f240 A __start___ex_table
102a07f8 A __start___ksymtab
102a07f8 A __stop___ex_table
102a07f8 A __stop___ksymtab
102a4000 A __init_begin
102a4040 ? profile_setup
102a407c ? name_to_kdev_t
102a4130 ? root_dev_setup
102a4214 ? checksetup
102a42a4 ? calibrate_delay
102a4448 ? readonly
102a4474 ? readwrite
102a44a0 ? debug_kernel
102a44c4 ? quiet_kernel
102a44e8 ? parse_options
102a46bc ? start_kernel
102a4894 ? do_initcalls
102a48e0 ? do_basic_setup
102a49bc ? .L1525
102a4a60 ? .L1541
102a4ac0 ? reboot_setup
102a4ac4 ? mem_limit_func
102a4b8c ? setup_bootmem
102a4f74 ? mem_init
102a509c ? pagetable_init
102a52b4 ? gateway_init
102a532c ? paging_init
102a53f4 ? cache_init
102a5448 ? .L727
102a54a4 ? .L728
102a54d4 ? .L733
102a54e0 ? .L734
102a54ec ? register_fallback_cpu
102a55a0 ? collect_boot_cpu_data
102a55e4 ? .L875
102a55f4 ? .L876
102a5604 ? .L877
102a5634 ? .L878
102a56a0 ? .L883
102a56b0 ? .L884
102a56c4 ? .L885
102a5710 ? .L886
102a5710 ? setup_cmdline
102a57e8 ? dma_ops_init
102a5868 ? .L905
102a587c ? .L919
102a587c ? setup_arch
102a5900 ? .L921
102a5958 ? .L923
102a5958 ? check_ivt
102a5a08 ? trap_init
102a5a50 ? time_init
102a5b1c ? init_IRQ
102a5b34 ? pcxl_dma_init
102a5bd0 ? lba_init
102a5bf0 ? lba_driver_callback
102a5dbc ? iosapic_load_irt
102a5e8c ? iosapic_init
102a5eec ? sba_init
102a5f1c ? ccio_init
102a5f4c ? init_idle
102a5ff8 ? sched_init
102a6098 ? fork_init
102a60bc ? proc_caches_init
102a61e8 ? panic_setup
102a6214 ? console_setup
102a6268 ? .L643
102a63a4 ? .L667
102a63a4 ? softirq_init
102a642c ? reserve_setup
102a6514 ? sysctl_init
102a6544 ? uid_cache_init
102a65c4 ? signals_init
102a6610 ? page_cache_init
102a6748 ? kmem_cache_init
102a67c8 ? .L672
102a67fc ? .L675
102a67fc ? kmem_cache_sizes_init
102a6898 ? .L681
102a68e4 ? .L684
102a691c ? .L691
102a6938 ? .L692
102a6938 ? kmem_cpucache_init
102a6940 ? bootmem_bootmap_pages
102a6954 ? init_bootmem_core
102a69d4 ? reserve_bootmem_core
102a6a14 ? .L683
102a6ad0 ? .L698
102a6ad0 ? free_bootmem_core
102a6b08 ? .L700
102a6b9c ? .L706
102a6bc8 ? .L718
102a6be4 ? .L719
102a6be4 ? __alloc_bootmem_core
102a6c30 ? .L721
102a6ee4 ? .L775
102a6ee4 ? free_all_bootmem_core
102a7094 ? init_bootmem_node
102a70ac ? reserve_bootmem_node
102a70c8 ? free_bootmem_node
102a70e4 ? free_all_bootmem_node
102a70fc ? init_bootmem
102a7138 ? reserve_bootmem
102a7164 ? free_bootmem
102a7190 ? free_all_bootmem
102a71b0 ? __alloc_bootmem
102a723c ? __alloc_bootmem_node
102a7284 ? swap_setup
102a72cc ? kswapd_init
102a7320 ? free_area_init_core
102a781c ? free_area_init
102a7858 ? setup_mem_frac
102a78e4 ? free_area_init_node
102a7924 ? init_shmem_fs
102a7954 ? .L1118
102a799c ? .L1119
102a79a4 ? buffer_init
102a7b48 ? bdflush_init
102a7bcc ? .L2197
102a7bfc ? .L2199
102a7c20 ? .L2200
102a7c28 ? .L2201
102a7c28 ? mount_root
102a7cd8 ? .L1538
102a7db0 ? .L1562
102a7e00 ? .L1564
102a7e40 ? .L1571
102a7e90 ? .L1573
102a7ee8 ? .L1593
102a7f00 ? .L1594
102a7f18 ? .L1595
102a7f30 ? .L1596
102a7fd4 ? .L1597
102a80e8 ? change_root
102a8170 ? .L1736
102a8270 ? .L1748
102a8298 ? .L1757
102a82b8 ? .L1758
102a82e8 ? .L1739
102a8314 ? .L1741
102a8328 ? .L1759
102a8330 ? .L1760
102a8330 ? bdev_init
102a83a4 ? init_pipe_fs
102a83c8 ? .L929
102a8408 ? .L935
102a8410 ? fasync_init
102a8464 ? filelock_init
102a84c0 ? dcache_init
102a8644 ? vfs_caches_init
102a8710 ? inode_init
102a8898 ? kiobuf_setup
102a88e4 ? dnotify_init
102a8938 ? filesystem_setup
102a8950 ? init_som_binfmt
102a8970 ? init_script_binfmt
102a8990 ? init_elf_binfmt
102a89b0 ? proc_root_init
102a8a54 ? proc_tty_init
102a8b04 ? proc_misc_init
102a8c6c ? init_proc_fs
102a8c90 ? .L650
102a8cd0 ? .L656
102a8cd8 ? partition_setup
102a8d04 ? .L1597
102a8d1c ? .L1598
102a8d1c ? init_ext2_fs
102a8d3c ? init_iso9660_fs
102a8d5c ? root_nfs_parse_addr
102a8dcc ? .L810
102a8e20 ? .L817
102a8e2c ? root_nfs_parse
102a8fb4 ? root_nfs_name
102a90ec ? root_nfs_addr
102a914c ? root_nfs_init
102a918c ? nfs_root_setup
102a91e0 ? .L856
102a9234 ? .L859
102a9234 ? root_nfs_getport
102a92c4 ? root_nfs_ports
102a9320 ? .L867
102a93dc ? .L878
102a93ec ? root_nfs_get_handle
102a944c ? .L884
102a945c ? .L882
102a9484 ? .L885
102a949c ? .L886
102a94a0 ? nfs_root_data
102a9510 ? ipc_init
102a9538 ? ipc_init_ids
102a95f4 ? msg_init
102a9644 ? sem_init
102a969c ? shm_init
102a96e8 ? blk_dev_init
102a97a8 ? device_init
102a97e4 ? no_initrd
102a97f4 ? ramdisk_start_setup
102a9820 ? load_ramdisk
102a9854 ? prompt_ramdisk
102a9888 ? ramdisk_size
102a98b4 ? ramdisk_size2
102a98cc ? ramdisk_blocksize
102a98f8 ? rd_init
102a9ae0 ? identify_ramdisk_image
102a9c5c ? .L941
102a9cf4 ? .L958
102a9d78 ? .L959
102a9d80 ? rd_load_image
102a9f04 ? .L964
102a9f84 ? .L1014
102a9fdc ? .L972
102aa098 ? .L987
102aa20c ? .L1015
102aa224 ? .L1016
102aa234 ? .L1017
102aa250 ? .L1018
102aa26c ? rd_load_disk
102aa2b0 ? .L1019
102aa300 ? .L1024
102aa300 ? rd_load
102aa31c ? rd_load_secondary
102aa338 ? initrd_load
102aa360 ? malloc
102aa37c ? free
102aa394 ? gzip_mark
102aa398 ? gzip_release
102aa39c ? fill_inbuf
102aa41c ? flush_window
102aa4f4 ? error
102aa524 ? crd_load
102aa5ec ? .L1630
102aa61c ? .L1631
102aa620 ? console_init
102aa6b4 ? tty_init
102aa898 ? memory_devfs_register
102aa8ac ? chr_dev_init
102aa924 ? raw_init
102aa950 ? pty_init
102aaee8 ? misc_init
102aaf5c ? rand_initialize
102ab078 ? vcs_init
102ab0cc ? console_map_init
102ab10c ? .L1125
102ab130 ? .L1131
102ab130 ? con_init
102ab55c ? con_init_devfs
102ab5c0 ? printk_pnp_dev_id
102ab62c ? start_pci_pnp_board
102ab6b0 ? .L1815
102ab78c ? .L1833
102ab7b0 ? .L1834
102ab7d4 ? .L1835
102ab7d8 ? pci_plx9050_fn
102ab86c ? .L1842
102ab89c ? .L1845
102ab8a8 ? pci_siig10x_fn
102ab928 ? pci_siig20x_fn
102ab9dc ? pci_inteli960ni_fn
102aba40 ? pci_timedia_fn
102abad4 ? probe_serial_pci
102abbd0 ? rs_init
102abfd0 ? .L1932
102ac114 ? .L1958
102ac134 ? serial_console_setup
102ac3d8 ? serial_console_init
102ac3f8 ? kbd_init
102ac530 ? lasi_ps2_register
102ac59c ? .L679
102ac5a0 ? .L680
102ac630 ? .L685
102ac648 ? .L686
102ac64c ? gsc_ps2_init
102ac670 ? hil_keyb_init
102ac81c ? lp_setup
102ac880 ? .L878
102ac91c ? .L894
102ac93c ? .L895
102ac94c ? lp_init
102aca70 ? .L943
102acabc ? .L945
102acac8 ? .L939
102acaf8 ? .L946
102acaf8 ? rtc_generic_init
102acb4c ? tulip_init
102acbb0 ? probe_list
102acc40 ? ethif_probe
102acd20 ? network_probe
102acd60 ? network_ldisc_init
102acd64 ? special_device_init
102acd68 ? net_device_init
102acd90 ? loopback_init
102ace68 ? i82596_probe
102ad078 ? .L1736
102ad0b8 ? .L1747
102ad118 ? lasi_i82596_probe
102ad134 ? asp_i82596_probe
102ad150 ? parport_setup
102ad400 ? parport_init
102ad430 ? parport_init_chip
102ad4a4 ? .L834
102ad504 ? .L838
102ad514 ? parport_gsc_init
102ad540 ? parport_gsc_init_module
102ad560 ? scsi_logging_setup
102ad5bc ? scsi_host_no_insert
102ad678 ? .L1128
102ad6a4 ? .L1139
102ad6a4 ? scsi_host_no_init
102ad764 ? scsi_setup
102ad774 ? init_scsi
102ad870 ? scsi_luns_setup
102ad8c0 ? pci_get_base_address
102ad8fc ? remap_pci_mem
102ad914 ? unmap_pci_mem
102ad918 ? ncr_script_fill
102ad9d4 ? ncr_script_copy_and_bind
102adda8 ? ncr_Symbios_setup_target
102ade30 ? ncr_Tekram_setup_target
102adebc ? ncr_save_initial_setting
102adff4 ? ncr_prepare_setting
102ae390 ? .L1285
102ae558 ? .L1361
102ae568 ? .L1362
102ae8b0 ? ncr_attach
102aebe8 ? .L1365
102aef4c ? .L1533
102aef98 ? .L1534
102af1a8 ? .L1535
102af1d8 ? .L1536
102af1dc ? ncr_regtest
102af260 ? ncr_snooptest
102af47c ? ncrgetfreq
102af624 ? ncr_getfreq
102af680 ? ncr_getclock
102af868 ? ncr_getpciclock
102af8c0 ? get_setup_token
102af940 ? sym53c8xx_setup
102afacc ? .L3888
102afc00 ? .L3953
102afc40 ? .L3954
102afc6c ? ncr_print_driver_setup
102afd7c ? sym53c8xx_detect
102afee8 ? .L3978
102b00f0 ? .L4042
102b0118 ? sym53c8xx_pci_init
102b01a0 ? .L4044
102b03fc ? .L4084
102b047c ? .L4093
102b0558 ? .L4125
102b05fc ? .L4126
102b06f4 ? .L4127
102b06f8 ? ncr_get_nvram
102b07a4 ? S24C16_set_bit
102b08a4 ? S24C16_start
102b0914 ? S24C16_stop
102b095c ? S24C16_do_bit
102b09f0 ? S24C16_write_ack
102b0a70 ? S24C16_read_ack
102b0ae8 ? S24C16_write_byte
102b0b6c ? S24C16_read_byte
102b0c10 ? sym_read_S24C16_nvram
102b0d28 ? .L4491
102b0e5c ? .L4504
102b0e5c ? sym_read_Symbios_nvram
102b0f00 ? T93C46_Clk
102b0f84 ? T93C46_Read_Bit
102b0ffc ? T93C46_Write_Bit
102b109c ? T93C46_Stop
102b1124 ? T93C46_Send_Command
102b11a4 ? T93C46_Read_Word
102b1234 ? T93C46_Read_Data
102b12e0 ? sym_read_T93C46_nvram
102b13b8 ? sym_read_Tekram_nvram
102b13f0 ? .L4579
102b1478 ? .L4583
102b147c ? init_this_scsi_driver
102b14cc ? init_this_scsi_driver
102b151c ? zalon_scsi_callback
102b15c0 ? .L860
102b1640 ? .L864
102b1640 ? pci_get_base_address
102b167c ? remap_pci_mem
102b1694 ? unmap_pci_mem
102b1698 ? get_setup_token
102b1718 ? sym53c8xx__setup
102b18a4 ? .L1051
102b19d8 ? .L1116
102b1a18 ? .L1117
102b1a44 ? ncr_print_driver_setup
102b1b54 ? sym53c8xx_pci_init
102b1bdc ? .L1159
102b1d8c ? .L1183
102b1e24 ? .L1193
102b1edc ? .L1222
102b1f54 ? .L1223
102b1fe0 ? .L1224
102b1fe4 ? sym53c8xx__detect
102b2114 ? .L1231
102b2200 ? .L1262
102b2210 ? ncr_script_fill
102b2494 ? ncr_script_copy_and_bind
102b27a4 ? ncr_prepare_setting
102b2fbc ? ncr_attach
102b323c ? .L1548
102b331c ? .L1536
102b3458 ? .L1596
102b3584 ? .L1597
102b3584 ? ncr_regtest
102b35f0 ? ncr_snooptest
102b37b8 ? ncrgetfreq
102b399c ? ncr_getclock
102b3b7c ? ncr53c8xx_setup
102b3b94 ? ncr53c8xx_detect
102b3bd4 ? init_this_scsi_driver
102b3c24 ? st_setup
102b3d98 ? init_st
102b3dc8 ? init_sd
102b3df4 ? init_sr
102b3e20 ? sg_def_reserved_size_setup
102b3e7c ? init_sg
102b3ebc ? cdrom_init
102b3ee0 ? pci_read_bridge_bases
102b3fdc ? .L931
102b4060 ? .L933
102b40d8 ? .L923
102b415c ? .L941
102b4170 ? .L942
102b4184 ? .L943
102b4184 ? pci_alloc_bus
102b41dc ? pci_add_new_bus
102b4280 ? pci_scan_bridge
102b4350 ? .L962
102b444c ? .L973
102b445c ? pci_scan_device
102b452c ? pci_scan_slot
102b4594 ? .L1006
102b464c ? .L1016
102b4660 ? pci_do_scan_bus
102b4740 ? pci_bus_exists
102b47ac ? pci_alloc_primary_bus
102b4834 ? pci_scan_bus
102b4884 ? pci_init
102b48d0 ? pci_setup
102b495c ? quirk_passive_release
102b4974 ? .L37
102b49f0 ? .L42
102b49f0 ? quirk_isa_dma_hangs
102b4a10 ? .L44
102b4a2c ? .L46
102b4a2c ? quirk_nopcipci
102b4a70 ? quirk_triton
102b4ab4 ? quirk_viaetbf
102b4af8 ? quirk_natoma
102b4b3c ? quirk_s3_64M
102b4b74 ? quirk_io_region
102b4bd4 ? quirk_ali7101_acpi
102b4c38 ? quirk_piix4_acpi
102b4c9c ? quirk_vt82c586_acpi
102b4d00 ? quirk_vt82c686_acpi
102b4d84 ? quirk_piix3_usb
102b4dd4 ? quirk_vt82c598_id
102b4e08 ? pci_name_device
102b4e58 ? .L36
102b4ecc ? .L52
102b4ef0 ? .L53
102b4ef4 ? pci_claim_resource
102b4f6c ? .L650
102b4f98 ? .L651
102b4f98 ? pdev_sort_resources
102b4ff0 ? .L676
102b50b8 ? .L695
102b50bc ? pdev_enable_device
102b51dc ? pci_proc_init
102b5298 ? pbus_assign_resources_sorted
102b54d0 ? pci_setup_bridge
102b5508 ? .L680
102b566c ? .L688
102b5674 ? pbus_assign_resources
102b5764 ? pci_assign_unassigned_resources
102b5808 ? pci_bridge_check_io
102b589c ? linear_init
102b58c0 ? raid0_init
102b58e4 ? raid1_init
102b5908 ? raid5_init
102b592c ? md_run_setup
102b5934 ? raid_setup
102b5a08 ? md_init
102b5ae8 ? .L3102
102b5b20 ? .L3104
102b5b20 ? gsc_init
102b5bf4 ? dino_init
102b5c18 ? dino_bios_init
102b5c1c ? dino_set_bars
102b5d00 ? dino_card_fixup
102b5d90 ? dino_fixup_bus
102b5e9c ? dino_card_init
102b6034 ? dino_bridge_init
102b60fc ? dino_common_init
102b61a4 ? .L870
102b6268 ? .L871
102b627c ? .L872
102b6290 ? .L873
102b6294 ? dino_driver_callback
102b6374 ? .L879
102b63c8 ? .L884
102b63f4 ? busdevices_init
102b6438 ? lasi_init_irq
102b64a8 ? lasi_init_chip
102b6604 ? asp_init_chip
102b66f4 ? .L684
102b6720 ? .L689
102b6724 ? register_wax_driver
102b6744 ? wax_init_irq
102b6770 ? wax_init_chip
102b689c ? .L684
102b68c0 ? .L685
102b68d8 ? lan_init_chip
102b6998 ? .L883
102b69d0 ? .L884
102b69d4 ? register_lan_drivers
102b69f4 ? serial_init_chip
102b6b14 ? probe_serial_gsc
102b6b38 ? hil_init_chip
102b6ba0 ? register_hil_drivers
102b6bc0 ? register_wax_eisa_driver
102b6be0 ? sock_init
102b6c58 ? sk_init
102b6c94 ? .L1781
102b6cf4 ? .L1787
102b6cf4 ? skb_init
102b6d6c ? netdev_boot_setup
102b6e00 ? net_dev_init
102b6f48 ? .L2029
102b7014 ? .L2056
102b7070 ? dev_mcast_init
102b70ac ? dst_init
102b70cc ? eth_setup
102b7160 ? ip_rt_init
102b73ec ? inet_initpeers
102b74d8 ? ip_init
102b7508 ? tcp_init
102b7914 ? tcp_v4_init
102b7a00 ? arp_init
102b7a78 ? icmp_init
102b7b74 ? devinet_init
102b7bcc ? inet_init
102b7d84 ? ip_fib_init
102b7dfc ? fib_hash_init
102b7ec8 ? ic_open_devs
102b7f18 ? .L1099
102b7f50 ? .L1102
102b7f74 ? .L1116
102b7fd0 ? .L1130
102b7fe0 ? .L1131
102b7fe8 ? .L1132
102b7ffc ? .L1108
102b8088 ? .L1121
102b80a4 ? .L1133
102b80b8 ? .L1134
102b80fc ? .L1135
102b80fc ? ic_close_devs
102b8130 ? .L1138
102b8194 ? .L1146
102b81b8 ? .L1150
102b81c0 ? .L1151
102b81c0 ? ic_dev_ioctl
102b8200 ? ic_route_ioctl
102b8240 ? ic_setup_if
102b8368 ? ic_setup_routes
102b83d8 ? .L1173
102b8448 ? .L1174
102b844c ? ic_defaults
102b8464 ? .L1176
102b8490 ? .L1178
102b8524 ? .L1192
102b855c ? .L1193
102b855c ? ic_bootp_init_ext
102b85d0 ? ic_bootp_send_if
102b8740 ? .L1211
102b87d8 ? .L1198
102b8804 ? .L1213
102b881c ? .L1214
102b8824 ? ic_bootp_send
102b8874 ? ic_bootp_string
102b88c0 ? ic_do_bootp_ext
102b8a34 ? .L1228
102b8ac0 ? .L1283
102b8ad8 ? .L1284
102b8ad8 ? ic_bootp_recv
102b8b08 ? .L1287
102b8b38 ? .L1307
102b8b60 ? .L1317
102b8c54 ? .L1318
102b8c80 ? .L1319
102b8d54 ? ic_dynamic
102b9004 ? ip_auto_config
102b90ec ? ic_proto_name
102b917c ? ip_auto_config_setup
102b92b4 ? .L1391
102b9380 ? .L1424
102b938c ? nfsaddrs_config_setup
102b93a4 ? af_unix_init
102b9404 ? __setup_str_profile_setup
102b9410 ? root_dev_names
102b9628 ? __setup_str_root_dev_setup
102b9630 ? __setup_str_readonly
102b9634 ? __setup_str_readwrite
102b9638 ? __setup_str_debug_kernel
102b9640 ? __setup_str_quiet_kernel
102b9648 ? __setup_str_panic_setup
102b9650 ? __setup_str_console_setup
102b965c ? __setup_str_reserve_setup
102b9668 ? __setup_str_setup_mem_frac
102b9674 ? nfs_root_name
102b9774 ? servaddr
102b9778 ? nfs_path
102b9b78 ? nfs_data
102b9d20 ? nfs_port
102b9d24 ? mount_port
102b9d28 ? root_int_opts
102b9d78 ? root_bool_opts
102b9e38 ? __setup_str_nfs_root_setup
102b9e44 ? __setup_str_no_initrd
102b9e50 ? __setup_str_ramdisk_start_setup
102b9e60 ? __setup_str_load_ramdisk
102b9e70 ? __setup_str_prompt_ramdisk
102b9e80 ? __setup_str_ramdisk_size
102b9e8c ? __setup_str_ramdisk_size2
102b9e9c ? __setup_str_ramdisk_blocksize
102b9eb0 ? serial_options
102b9edc ? lasi_psaux_drivers_for
102b9f24 ? eisa_probes
102b9f2c ? mca_probes
102b9f34 ? isa_probes
102b9f3c ? parport_probes
102b9f44 ? m68k_probes
102b9f4c ? sgi_probes
102b9f54 ? mips_probes
102b9f5c ? pci_probes
102b9f64 ? io
102b9f88 ? irq
102b9fa8 ? dma
102b9fc8 ? parport_setup_ptr
102b9fcc ? __setup_str_parport_setup
102b9fd8 ? parport_count
102b9fdc ? __setup_str_scsi_logging_setup
102b9fec ? __setup_str_scsi_setup
102b9ff8 ? __setup_str_scsi_luns_setup
102ba008 ? driver_safe_setup
102ba0a8 ? Tekram_sync
102ba0b8 ? script0
102bae70 ? scripth0
102bb468 ? setup_token
102bb4fc ? __setup_str_sym53c8xx_setup
102bb508 ? ncr_chip_table
102bb658 ? ncr_chip_ids
102bb678 ? __setup_str_param_setup
102bb680 ? driver_safe_setup
102bb720 ? setup_token
102bb7b4 ? ncr_chip_table
102bb904 ? script0
102bc7b0 ? scripth0
102bdc08 ? __setup_str_ncr53c8xx_setup
102bdc14 ? ncr_chip_ids
102bdc30 ? parms
102bdc50 ? __setup_str_st_setup
102bdc54 ? __setup_str_sg_def_reserved_size_setup
102bdc6c ? __setup_str_pci_setup
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102d01dc ? __devicestr_90047778
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102d0230 ? __devicestr_90047860
102d023c ? __devicestr_90047870
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102d0254 ? __devicestr_90047872
102d0260 ? __devicestr_90047873
102d026c ? __devicestr_90047874
102d0278 ? __devicestr_90047880
102d0284 ? __devicestr_90047890
102d0290 ? __devicestr_90047891
102d029c ? __devicestr_90047892
102d02a8 ? __devicestr_90047893
102d02b4 ? __devicestr_90047894
102d02c0 ? __devicestr_90047895
102d02e4 ? __devicestr_90047896
102d02f0 ? __devicestr_90047897
102d02fc ? __devicestr_90048078
102d0308 ? __devicestr_90048178
102d0314 ? __devicestr_90048278
102d0330 ? __devicestr_90048378
102d034c ? __devicestr_90048478
102d0364 ? __devicestr_90048578
102d0384 ? __devicestr_90048678
102d0398 ? __devicestr_90048778
102d03a4 ? __devicestr_90048878
102d03ac ? __devicestr_90048b78
102d03b8 ? __devicestr_9004ec78
102d03c8 ? __vendorstr_9005
102d03d0 ? __devicestr_90050010
102d03e0 ? __devicestr_90050011
102d03e8 ? __devicestr_90050013
102d03f0 ? __devicestr_9005001f
102d0404 ? __devicestr_90050020
102d0410 ? __devicestr_9005002f
102d041c ? __devicestr_90050030
102d0428 ? __devicestr_9005003f
102d0434 ? __devicestr_90050050
102d043c ? __devicestr_90050051
102d0444 ? __devicestr_90050053
102d0460 ? __devicestr_9005005f
102d0468 ? __devicestr_90050080
102d0470 ? __devicestr_90050081
102d0478 ? __devicestr_90050083
102d0480 ? __devicestr_9005008f
102d0488 ? __devicestr_900500c0
102d0490 ? __devicestr_900500c1
102d0498 ? __devicestr_900500c3
102d04a0 ? __devicestr_900500cf
102d04a8 ? __vendorstr_907f
102d04b4 ? __devicestr_907f2015
102d04c0 ? __vendorstr_919a
102d04d0 ? __vendorstr_9412
102d04d8 ? __devicestr_94126565
102d04e0 ? __vendorstr_9699
102d04fc ? __devicestr_96996565
102d0504 ? __vendorstr_a0a0
102d0510 ? __vendorstr_a0f1
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102d0534 ? __vendorstr_a259
102d0544 ? __vendorstr_a25b
102d0564 ? __vendorstr_a304
102d056c ? __vendorstr_a727
102d0580 ? __vendorstr_aa42
102d0598 ? __vendorstr_ac1e
102d05b8 ? __vendorstr_b1b3
102d05d0 ? __vendorstr_c001
102d05dc ? __vendorstr_c0a9
102d05f8 ? __vendorstr_c0de
102d0604 ? __vendorstr_c0fe
102d0620 ? __vendorstr_ca50
102d063c ? __vendorstr_cafe
102d064c ? __vendorstr_cccc
102d0664 ? __vendorstr_d4d4
102d0674 ? __devicestr_d4d40601
102d0688 ? __vendorstr_d84d
102d0690 ? __vendorstr_e000
102d0698 ? __devicestr_e000e000
102d06a0 ? __vendorstr_e159
102d06b8 ? __devicestr_e1590001
102d06c8 ? __vendorstr_e4bf
102d06dc ? __vendorstr_ea01
102d06f0 ? __vendorstr_eabb
102d0708 ? __vendorstr_ecc0
102d071c ? __vendorstr_edd8
102d072c ? __devicestr_edd8a091
102d0740 ? __devicestr_edd8a099
102d0754 ? __devicestr_edd8a0a1
102d075c ? __devicestr_edd8a0a9
102d0764 ? __vendorstr_fa57
102d0780 ? __vendorstr_feda
102d078c ? __vendorstr_fffe
102d0798 ? __devicestr_fffe0710
102d07a8 ? __vendorstr_ffff
102d07bc ? __devices_0000
102d07bc ? __devices_001a
102d07bc ? __devices_0033
102d07bc ? __devices_003d
102d07bc ? __devices_0070
102d07bc ? __devices_0100
102d07bc ? __devices_0675
102d07cc ? __devices_0a89
102d07cc ? __devices_0e11
102d08fc ? __devices_1000
102d098c ? __devices_1001
102d09d4 ? __devices_1002
102d0c34 ? __devices_1003
102d0c3c ? __devices_1004
102d0ccc ? __devices_1005
102d0d04 ? __devices_1006
102d0d04 ? __devices_1007
102d0d04 ? __devices_1008
102d0d04 ? __devices_100a
102d0d04 ? __devices_100b
102d0d3c ? __devices_100c
102d0d6c ? __devices_100d
102d0d6c ? __devices_100e
102d0d84 ? __devices_1010
102d0d84 ? __devices_1011
102d0e2c ? __devices_1012
102d0e2c ? __devices_1013
102d0f04 ? __devices_1014
102d102c ? __devices_1015
102d102c ? __devices_1016
102d102c ? __devices_1017
102d1034 ? __devices_1018
102d1034 ? __devices_1019
102d1034 ? __devices_101a
102d103c ? __devices_101b
102d103c ? __devices_101c
102d1094 ? __devices_101e
102d10cc ? __devices_101f
102d10cc ? __devices_1020
102d10cc ? __devices_1021
102d10cc ? __devices_1022
102d113c ? __devices_1023
102d126c ? __devices_1024
102d126c ? __devices_1025
102d13f4 ? __devices_1028
102d142c ? __devices_1029
102d142c ? __devices_102a
102d143c ? __devices_102b
102d14bc ? __devices_102c
102d1514 ? __devices_102d
102d151c ? __devices_102e
102d151c ? __devices_102f
102d152c ? __devices_1030
102d152c ? __devices_1031
102d154c ? __devices_1032
102d154c ? __devices_1033
102d15f4 ? __devices_1034
102d15f4 ? __devices_1035
102d15f4 ? __devices_1036
102d15fc ? __devices_1037
102d15fc ? __devices_1038
102d15fc ? __devices_1039
102d1754 ? __devices_103a
102d1754 ? __devices_103b
102d1754 ? __devices_103c
102d17cc ? __devices_103e
102d17cc ? __devices_103f
102d17cc ? __devices_1040
102d17cc ? __devices_1041
102d17cc ? __devices_1042
102d17f4 ? __devices_1043
102d17f4 ? __devices_1044
102d1814 ? __devices_1045
102d18bc ? __devices_1046
102d18bc ? __devices_1047
102d18bc ? __devices_1048
102d18cc ? __devices_1049
102d18cc ? __devices_104a
102d18ec ? __devices_104b
102d1904 ? __devices_104c
102d1a24 ? __devices_104d
102d1a44 ? __devices_104e
102d1a74 ? __devices_104f
102d1a74 ? __devices_1050
102d1aac ? __devices_1051
102d1aac ? __devices_1052
102d1aac ? __devices_1053
102d1aac ? __devices_1054
102d1aac ? __devices_1055
102d1acc ? __devices_1056
102d1acc ? __devices_1057
102d1b1c ? __devices_1058
102d1b1c ? __devices_1059
102d1b1c ? __devices_105a
102d1b44 ? __devices_105b
102d1b44 ? __devices_105c
102d1b44 ? __devices_105d
102d1b64 ? __devices_105e
102d1b64 ? __devices_105f
102d1b64 ? __devices_1060
102d1c14 ? __devices_1061
102d1c24 ? __devices_1062
102d1c24 ? __devices_1063
102d1c24 ? __devices_1064
102d1c24 ? __devices_1065
102d1c24 ? __devices_1066
102d1c4c ? __devices_1067
102d1c54 ? __devices_1068
102d1c54 ? __devices_1069
102d1c74 ? __devices_106a
102d1c74 ? __devices_106b
102d1cb4 ? __devices_106c
102d1cdc ? __devices_106d
102d1cdc ? __devices_106e
102d1cdc ? __devices_106f
102d1cdc ? __devices_1070
102d1cdc ? __devices_1071
102d1cdc ? __devices_1072
102d1cdc ? __devices_1073
102d1d44 ? __devices_1074
102d1d4c ? __devices_1075
102d1d4c ? __devices_1076
102d1d4c ? __devices_1077
102d1d8c ? __devices_1078
102d1dcc ? __devices_1079
102d1dcc ? __devices_107a
102d1dcc ? __devices_107b
102d1dcc ? __devices_107c
102d1dcc ? __devices_107d
102d1dd4 ? __devices_107e
102d1dec ? __devices_107f
102d1df4 ? __devices_1080
102d1e0c ? __devices_1081
102d1e14 ? __devices_1082
102d1e14 ? __devices_1083
102d1e1c ? __devices_1084
102d1e1c ? __devices_1085
102d1e1c ? __devices_1086
102d1e1c ? __devices_1087
102d1e1c ? __devices_1088
102d1e1c ? __devices_1089
102d1e1c ? __devices_108a
102d1e34 ? __devices_108c
102d1e34 ? __devices_108d
102d1ea4 ? __devices_108e
102d1edc ? __devices_108f
102d1edc ? __devices_1090
102d1edc ? __devices_1091
102d1f14 ? __devices_1092
102d1fa4 ? __devices_1093
102d203c ? __devices_1094
102d203c ? __devices_1095
102d2084 ? __devices_1096
102d2084 ? __devices_1097
102d2084 ? __devices_1098
102d2094 ? __devices_1099
102d2094 ? __devices_109a
102d2094 ? __devices_109b
102d2094 ? __devices_109c
102d2094 ? __devices_109d
102d2094 ? __devices_109e
102d2114 ? __devices_109f
102d2114 ? __devices_10a0
102d2114 ? __devices_10a1
102d2114 ? __devices_10a2
102d2114 ? __devices_10a3
102d2114 ? __devices_10a4
102d2114 ? __devices_10a5
102d2114 ? __devices_10a6
102d2114 ? __devices_10a7
102d2114 ? __devices_10a8
102d211c ? __devices_10a9
102d21dc ? __devices_10aa
102d21e4 ? __devices_10ab
102d21e4 ? __devices_10ac
102d21e4 ? __devices_10ad
102d2214 ? __devices_10ae
102d2214 ? __devices_10af
102d2214 ? __devices_10b0
102d2214 ? __devices_10b1
102d2214 ? __devices_10b2
102d2214 ? __devices_10b3
102d2224 ? __devices_10b4
102d222c ? __devices_10b5
102d2274 ? __devices_10b6
102d22cc ? __devices_10b7
102d23f4 ? __devices_10b8
102d2424 ? __devices_10b9
102d2554 ? __devices_10ba
102d255c ? __devices_10bb
102d255c ? __devices_10bc
102d255c ? __devices_10bd
102d2564 ? __devices_10be
102d2564 ? __devices_10bf
102d2564 ? __devices_10c0
102d2564 ? __devices_10c1
102d2564 ? __devices_10c2
102d2564 ? __devices_10c3
102d256c ? __devices_10c4
102d256c ? __devices_10c5
102d256c ? __devices_10c6
102d256c ? __devices_10c7
102d256c ? __devices_10c8
102d25b4 ? __devices_10c9
102d25b4 ? __devices_10ca
102d25b4 ? __devices_10cb
102d25b4 ? __devices_10cc
102d25b4 ? __devices_10cd
102d25d4 ? __devices_10ce
102d25d4 ? __devices_10cf
102d25dc ? __devices_10d0
102d25dc ? __devices_10d1
102d25dc ? __devices_10d2
102d25dc ? __devices_10d3
102d25dc ? __devices_10d4
102d25dc ? __devices_10d5
102d25dc ? __devices_10d6
102d25dc ? __devices_10d7
102d25dc ? __devices_10d8
102d25dc ? __devices_10d9
102d25fc ? __devices_10da
102d260c ? __devices_10db
102d260c ? __devices_10dc
102d2634 ? __devices_10dd
102d2634 ? __devices_10de
102d26ec ? __devices_10df
102d2704 ? __devices_10e0
102d2734 ? __devices_10e1
102d274c ? __devices_10e2
102d274c ? __devices_10e3
102d275c ? __devices_10e4
102d275c ? __devices_10e5
102d275c ? __devices_10e6
102d275c ? __devices_10e7
102d275c ? __devices_10e8
102d27cc ? __devices_10e9
102d27cc ? __devices_10ea
102d2804 ? __devices_10eb
102d2814 ? __devices_10ec
102d2834 ? __devices_10ed
102d283c ? __devices_10ee
102d285c ? __devices_10ef
102d2864 ? __devices_10f0
102d2864 ? __devices_10f1
102d2864 ? __devices_10f2
102d2864 ? __devices_10f3
102d2864 ? __devices_10f4
102d2864 ? __devices_10f5
102d286c ? __devices_10f6
102d286c ? __devices_10f7
102d286c ? __devices_10f8
102d286c ? __devices_10f9
102d286c ? __devices_10fa
102d2874 ? __devices_10fb
102d2874 ? __devices_10fc
102d2874 ? __devices_10fd
102d2874 ? __devices_10fe
102d2874 ? __devices_10ff
102d2874 ? __devices_1100
102d2874 ? __devices_1101
102d289c ? __devices_1102
102d28ac ? __devices_1103
102d28bc ? __devices_1104
102d28bc ? __devices_1105
102d28c4 ? __devices_1106
102d2a74 ? __devices_1107
102d2a7c ? __devices_1108
102d2abc ? __devices_1109
102d2ac4 ? __devices_110a
102d2ae4 ? __devices_110b
102d2aec ? __devices_110c
102d2aec ? __devices_110d
102d2aec ? __devices_110e
102d2aec ? __devices_110f
102d2aec ? __devices_1110
102d2afc ? __devices_1111
102d2afc ? __devices_1112
102d2b1c ? __devices_1113
102d2b3c ? __devices_1114
102d2b3c ? __devices_1115
102d2b3c ? __devices_1116
102d2b74 ? __devices_1117
102d2b84 ? __devices_1118
102d2b84 ? __devices_1119
102d2ce4 ? __devices_111a
102d2d0c ? __devices_111b
102d2d0c ? __devices_111c
102d2d14 ? __devices_111d
102d2d1c ? __devices_111e
102d2d1c ? __devices_111f
102d2d2c ? __devices_1120
102d2d2c ? __devices_1121
102d2d2c ? __devices_1122
102d2d2c ? __devices_1123
102d2d2c ? __devices_1124
102d2d2c ? __devices_1125
102d2d2c ? __devices_1126
102d2d2c ? __devices_1127
102d2d5c ? __devices_1129
102d2d5c ? __devices_112a
102d2d5c ? __devices_112b
102d2d5c ? __devices_112c
102d2d5c ? __devices_112d
102d2d5c ? __devices_112e
102d2d5c ? __devices_112f
102d2d6c ? __devices_1130
102d2d6c ? __devices_1131
102d2d7c ? __devices_1132
102d2d7c ? __devices_1133
102d2dec ? __devices_1134
102d2df4 ? __devices_1135
102d2dfc ? __devices_1136
102d2dfc ? __devices_1137
102d2dfc ? __devices_1138
102d2e04 ? __devices_1139
102d2e0c ? __devices_113a
102d2e0c ? __devices_113b
102d2e0c ? __devices_113c
102d2e3c ? __devices_113d
102d2e3c ? __devices_113e
102d2e3c ? __devices_113f
102d2e74 ? __devices_1140
102d2e74 ? __devices_1141
102d2e74 ? __devices_1142
102d2e9c ? __devices_1143
102d2e9c ? __devices_1144
102d2ea4 ? __devices_1145
102d2ea4 ? __devices_1146
102d2ea4 ? __devices_1147
102d2ea4 ? __devices_1148
102d2ebc ? __devices_1149
102d2ebc ? __devices_114a
102d2ec4 ? __devices_114b
102d2ec4 ? __devices_114c
102d2ec4 ? __devices_114d
102d2ec4 ? __devices_114e
102d2ec4 ? __devices_114f
102d2f94 ? __devices_1150
102d2f94 ? __devices_1151
102d2f94 ? __devices_1152
102d2f94 ? __devices_1153
102d2f94 ? __devices_1154
102d2f94 ? __devices_1155
102d2f94 ? __devices_1156
102d2f94 ? __devices_1157
102d2f94 ? __devices_1158
102d2fac ? __devices_1159
102d2fb4 ? __devices_115a
102d2fb4 ? __devices_115b
102d2fb4 ? __devices_115c
102d2fb4 ? __devices_115d
102d2fec ? __devices_115e
102d2fec ? __devices_115f
102d2fec ? __devices_1160
102d2fec ? __devices_1161
102d2fec ? __devices_1162
102d2fec ? __devices_1163
102d2ffc ? __devices_1164
102d2ffc ? __devices_1165
102d3004 ? __devices_1166
102d303c ? __devices_1167
102d303c ? __devices_1168
102d303c ? __devices_1169
102d303c ? __devices_116a
102d305c ? __devices_116b
102d305c ? __devices_116c
102d305c ? __devices_116d
102d305c ? __devices_116e
102d305c ? __devices_116f
102d305c ? __devices_1170
102d305c ? __devices_1171
102d305c ? __devices_1172
102d305c ? __devices_1173
102d305c ? __devices_1174
102d305c ? __devices_1175
102d305c ? __devices_1176
102d305c ? __devices_1177
102d305c ? __devices_1178
102d3064 ? __devices_1179
102d30bc ? __devices_117a
102d30bc ? __devices_117b
102d30bc ? __devices_117c
102d30bc ? __devices_117d
102d30bc ? __devices_117e
102d30bc ? __devices_117f
102d30bc ? __devices_1180
102d30ec ? __devices_1181
102d30ec ? __devices_1183
102d30ec ? __devices_1184
102d30ec ? __devices_1185
102d30ec ? __devices_1186
102d30f4 ? __devices_1187
102d30f4 ? __devices_1188
102d30f4 ? __devices_1189
102d30f4 ? __devices_118a
102d30f4 ? __devices_118b
102d30f4 ? __devices_118c
102d30fc ? __devices_118d
102d3184 ? __devices_118e
102d3184 ? __devices_118f
102d3184 ? __devices_1190
102d318c ? __devices_1191
102d31e4 ? __devices_1192
102d31e4 ? __devices_1193
102d31f4 ? __devices_1194
102d31f4 ? __devices_1195
102d31f4 ? __devices_1196
102d31f4 ? __devices_1197
102d31f4 ? __devices_1198
102d31f4 ? __devices_1199
102d31f4 ? __devices_119a
102d31f4 ? __devices_119b
102d31fc ? __devices_119c
102d31fc ? __devices_119d
102d31fc ? __devices_119e
102d31fc ? __devices_119f
102d31fc ? __devices_11a0
102d31fc ? __devices_11a1
102d31fc ? __devices_11a2
102d31fc ? __devices_11a3
102d31fc ? __devices_11a4
102d31fc ? __devices_11a5
102d31fc ? __devices_11a6
102d31fc ? __devices_11a7
102d31fc ? __devices_11a8
102d31fc ? __devices_11a9
102d3204 ? __devices_11aa
102d3204 ? __devices_11ab
102d321c ? __devices_11ac
102d321c ? __devices_11ad
102d322c ? __devices_11ae
102d322c ? __devices_11af
102d322c ? __devices_11b0
102d324c ? __devices_11b1
102d324c ? __devices_11b2
102d324c ? __devices_11b3
102d324c ? __devices_11b4
102d324c ? __devices_11b5
102d324c ? __devices_11b6
102d324c ? __devices_11b7
102d324c ? __devices_11b8
102d3254 ? __devices_11b9
102d325c ? __devices_11ba
102d325c ? __devices_11bb
102d325c ? __devices_11bc
102d3264 ? __devices_11bd
102d3264 ? __devices_11be
102d3264 ? __devices_11bf
102d3264 ? __devices_11c0
102d3264 ? __devices_11c1
102d333c ? __devices_11c2
102d333c ? __devices_11c3
102d333c ? __devices_11c4
102d333c ? __devices_11c5
102d333c ? __devices_11c6
102d333c ? __devices_11c7
102d333c ? __devices_11c8
102d3354 ? __devices_11c9
102d3364 ? __devices_11ca
102d3364 ? __devices_11cb
102d337c ? __devices_11cc
102d337c ? __devices_11cd
102d337c ? __devices_11ce
102d337c ? __devices_11cf
102d337c ? __devices_11d0
102d337c ? __devices_11d1
102d3384 ? __devices_11d2
102d3384 ? __devices_11d3
102d3384 ? __devices_11d4
102d3384 ? __devices_11d5
102d3394 ? __devices_11d6
102d3394 ? __devices_11d7
102d3394 ? __devices_11d8
102d3394 ? __devices_11d9
102d3394 ? __devices_11da
102d3394 ? __devices_11db
102d3394 ? __devices_11dc
102d3394 ? __devices_11dd
102d3394 ? __devices_11de
102d33a4 ? __devices_11df
102d33a4 ? __devices_11e0
102d33a4 ? __devices_11e1
102d33a4 ? __devices_11e2
102d33a4 ? __devices_11e3
102d33a4 ? __devices_11e4
102d33a4 ? __devices_11e5
102d33a4 ? __devices_11e6
102d33a4 ? __devices_11e7
102d33a4 ? __devices_11e8
102d33a4 ? __devices_11e9
102d33a4 ? __devices_11ea
102d33a4 ? __devices_11eb
102d33a4 ? __devices_11ec
102d33a4 ? __devices_11ed
102d33a4 ? __devices_11ee
102d33a4 ? __devices_11ef
102d33a4 ? __devices_11f0
102d33dc ? __devices_11f1
102d33dc ? __devices_11f2
102d33dc ? __devices_11f3
102d33dc ? __devices_11f4
102d33e4 ? __devices_11f5
102d33e4 ? __devices_11f6
102d340c ? __devices_11f7
102d340c ? __devices_11f8
102d3414 ? __devices_11f9
102d3414 ? __devices_11fa
102d3414 ? __devices_11fb
102d3414 ? __devices_11fc
102d3414 ? __devices_11fd
102d3414 ? __devices_11fe
102d346c ? __devices_11ff
102d346c ? __devices_1200
102d346c ? __devices_1201
102d346c ? __devices_1202
102d346c ? __devices_1203
102d346c ? __devices_1204
102d346c ? __devices_1205
102d346c ? __devices_1206
102d346c ? __devices_1208
102d3474 ? __devices_1209
102d3474 ? __devices_120a
102d3474 ? __devices_120b
102d3474 ? __devices_120c
102d3474 ? __devices_120d
102d3474 ? __devices_120e
102d34d4 ? __devices_120f
102d34dc ? __devices_1210
102d34dc ? __devices_1211
102d34dc ? __devices_1212
102d34dc ? __devices_1213
102d34dc ? __devices_1214
102d34dc ? __devices_1215
102d34dc ? __devices_1216
102d34dc ? __devices_1217
102d350c ? __devices_1218
102d350c ? __devices_1219
102d350c ? __devices_121a
102d353c ? __devices_121b
102d353c ? __devices_121c
102d353c ? __devices_121d
102d353c ? __devices_121e
102d353c ? __devices_121f
102d353c ? __devices_1220
102d3544 ? __devices_1221
102d3544 ? __devices_1222
102d3544 ? __devices_1223
102d3594 ? __devices_1224
102d3594 ? __devices_1225
102d3594 ? __devices_1227
102d3594 ? __devices_1228
102d3594 ? __devices_1229
102d3594 ? __devices_122a
102d3594 ? __devices_122b
102d3594 ? __devices_122c
102d3594 ? __devices_122d
102d35ac ? __devices_122e
102d35ac ? __devices_122f
102d35ac ? __devices_1230
102d35ac ? __devices_1231
102d35ac ? __devices_1232
102d35ac ? __devices_1233
102d35ac ? __devices_1234
102d35ac ? __devices_1235
102d35ac ? __devices_1236
102d35bc ? __devices_1237
102d35bc ? __devices_1238
102d35bc ? __devices_1239
102d35bc ? __devices_123a
102d35bc ? __devices_123b
102d35bc ? __devices_123c
102d35bc ? __devices_123d
102d35d4 ? __devices_123e
102d35d4 ? __devices_123f
102d35ec ? __devices_1240
102d35ec ? __devices_1241
102d35ec ? __devices_1242
102d35f4 ? __devices_1243
102d35f4 ? __devices_1244
102d3604 ? __devices_1245
102d3604 ? __devices_1246
102d3604 ? __devices_1247
102d3604 ? __devices_1248
102d3604 ? __devices_1249
102d3604 ? __devices_124a
102d3604 ? __devices_124b
102d3604 ? __devices_124c
102d3604 ? __devices_124d
102d361c ? __devices_124e
102d361c ? __devices_124f
102d3624 ? __devices_1250
102d3624 ? __devices_1251
102d3624 ? __devices_1253
102d3624 ? __devices_1254
102d3624 ? __devices_1255
102d364c ? __devices_1256
102d364c ? __devices_1257
102d364c ? __devices_1258
102d364c ? __devices_1259
102d3654 ? __devices_125a
102d3654 ? __devices_125b
102d3654 ? __devices_125c
102d3654 ? __devices_125d
102d36b4 ? __devices_125e
102d36b4 ? __devices_125f
102d36b4 ? __devices_1260
102d36c4 ? __devices_1261
102d36c4 ? __devices_1262
102d36c4 ? __devices_1263
102d36c4 ? __devices_1264
102d36c4 ? __devices_1265
102d36c4 ? __devices_1266
102d36d4 ? __devices_1267
102d36e4 ? __devices_1268
102d36e4 ? __devices_1269
102d36e4 ? __devices_126a
102d36e4 ? __devices_126b
102d36e4 ? __devices_126c
102d36e4 ? __devices_126d
102d36e4 ? __devices_126e
102d36e4 ? __devices_126f
102d371c ? __devices_1270
102d371c ? __devices_1271
102d371c ? __devices_1272
102d371c ? __devices_1273
102d3724 ? __devices_1274
102d373c ? __devices_1275
102d373c ? __devices_1276
102d373c ? __devices_1277
102d373c ? __devices_1278
102d373c ? __devices_1279
102d375c ? __devices_127a
102d37cc ? __devices_127b
102d37cc ? __devices_127c
102d37cc ? __devices_127d
102d37cc ? __devices_127e
102d37cc ? __devices_127f
102d37cc ? __devices_1280
102d37cc ? __devices_1281
102d37cc ? __devices_1282
102d37d4 ? __devices_1283
102d37fc ? __devices_1284
102d37fc ? __devices_1285
102d3804 ? __devices_1286
102d3804 ? __devices_1287
102d3814 ? __devices_1288
102d3814 ? __devices_1289
102d3814 ? __devices_128a
102d3814 ? __devices_128b
102d3814 ? __devices_128c
102d3814 ? __devices_128d
102d381c ? __devices_128e
102d3844 ? __devices_128f
102d3844 ? __devices_1290
102d3844 ? __devices_1291
102d3844 ? __devices_1292
102d3844 ? __devices_1293
102d3844 ? __devices_1294
102d3844 ? __devices_1295
102d3844 ? __devices_1296
102d3844 ? __devices_1297
102d3844 ? __devices_1298
102d3844 ? __devices_1299
102d3844 ? __devices_129a
102d3844 ? __devices_129b
102d3844 ? __devices_129c
102d3844 ? __devices_129d
102d3844 ? __devices_129e
102d3844 ? __devices_129f
102d3844 ? __devices_12a0
102d3844 ? __devices_12a1
102d3844 ? __devices_12a2
102d3844 ? __devices_12a3
102d3844 ? __devices_12a4
102d3844 ? __devices_12a5
102d3844 ? __devices_12a6
102d3844 ? __devices_12a7
102d3844 ? __devices_12a8
102d3844 ? __devices_12a9
102d3844 ? __devices_12aa
102d3844 ? __devices_12ab
102d384c ? __devices_12ac
102d384c ? __devices_12ad
102d384c ? __devices_12ae
102d3854 ? __devices_12af
102d3854 ? __devices_12b0
102d3854 ? __devices_12b1
102d3854 ? __devices_12b2
102d3854 ? __devices_12b3
102d3854 ? __devices_12b4
102d3854 ? __devices_12b5
102d3854 ? __devices_12b6
102d3854 ? __devices_12b7
102d3854 ? __devices_12b8
102d3854 ? __devices_12b9
102d386c ? __devices_12ba
102d386c ? __devices_12bb
102d386c ? __devices_12bc
102d386c ? __devices_12bd
102d386c ? __devices_12be
102d387c ? __devices_12bf
102d387c ? __devices_12c0
102d387c ? __devices_12c1
102d387c ? __devices_12c2
102d387c ? __devices_12c3
102d387c ? __devices_12c4
102d387c ? __devices_12c5
102d3894 ? __devices_12c6
102d3894 ? __devices_12c7
102d3894 ? __devices_12c8
102d3894 ? __devices_12c9
102d3894 ? __devices_12ca
102d3894 ? __devices_12cb
102d3894 ? __devices_12cc
102d3894 ? __devices_12cd
102d3894 ? __devices_12ce
102d3894 ? __devices_12cf
102d3894 ? __devices_12d0
102d3894 ? __devices_12d1
102d3894 ? __devices_12d2
102d38dc ? __devices_12d3
102d38dc ? __devices_12d4
102d38dc ? __devices_12d5
102d38dc ? __devices_12d6
102d38dc ? __devices_12d7
102d38dc ? __devices_12d8
102d38dc ? __devices_12d9
102d38dc ? __devices_12da
102d38dc ? __devices_12db
102d38dc ? __devices_12dc
102d38dc ? __devices_12dd
102d38dc ? __devices_12de
102d38dc ? __devices_12df
102d38dc ? __devices_12e0
102d38f4 ? __devices_12e1
102d38f4 ? __devices_12e2
102d38f4 ? __devices_12e3
102d38f4 ? __devices_12e4
102d38f4 ? __devices_12e5
102d38f4 ? __devices_12e6
102d38f4 ? __devices_12e7
102d38f4 ? __devices_12e8
102d38f4 ? __devices_12e9
102d38f4 ? __devices_12ea
102d38f4 ? __devices_12eb
102d3914 ? __devices_12ec
102d3914 ? __devices_12ed
102d3914 ? __devices_12ee
102d3914 ? __devices_12ef
102d3914 ? __devices_12f0
102d3914 ? __devices_12f1
102d3914 ? __devices_12f2
102d3914 ? __devices_12f3
102d3914 ? __devices_12f4
102d3914 ? __devices_12f5
102d3914 ? __devices_12f6
102d3914 ? __devices_12f7
102d3914 ? __devices_12f8
102d391c ? __devices_12f9
102d391c ? __devices_12fb
102d391c ? __devices_12fc
102d391c ? __devices_12fd
102d391c ? __devices_12fe
102d391c ? __devices_12ff
102d391c ? __devices_1300
102d391c ? __devices_1302
102d391c ? __devices_1303
102d391c ? __devices_1304
102d391c ? __devices_1305
102d391c ? __devices_1306
102d391c ? __devices_1307
102d3a34 ? __devices_1308
102d3a3c ? __devices_1309
102d3a3c ? __devices_130a
102d3a3c ? __devices_130b
102d3a3c ? __devices_130c
102d3a3c ? __devices_130d
102d3a3c ? __devices_130e
102d3a3c ? __devices_130f
102d3a3c ? __devices_1310
102d3a3c ? __devices_1311
102d3a3c ? __devices_1312
102d3a3c ? __devices_1313
102d3a3c ? __devices_1316
102d3a3c ? __devices_1317
102d3a3c ? __devices_1318
102d3a44 ? __devices_1319
102d3a64 ? __devices_131a
102d3a64 ? __devices_131c
102d3a64 ? __devices_131d
102d3a64 ? __devices_131e
102d3a64 ? __devices_131f
102d3b8c ? __devices_1320
102d3b8c ? __devices_1321
102d3b8c ? __devices_1322
102d3b8c ? __devices_1323
102d3b8c ? __devices_1324
102d3b8c ? __devices_1325
102d3b8c ? __devices_1326
102d3b8c ? __devices_1327
102d3b8c ? __devices_1328
102d3b8c ? __devices_1329
102d3b8c ? __devices_132a
102d3b8c ? __devices_132b
102d3b8c ? __devices_132c
102d3b8c ? __devices_132d
102d3b8c ? __devices_1330
102d3b8c ? __devices_1331
102d3b8c ? __devices_1332
102d3b8c ? __devices_1334
102d3b8c ? __devices_1335
102d3b8c ? __devices_1337
102d3b8c ? __devices_1338
102d3b8c ? __devices_133a
102d3b8c ? __devices_133b
102d3b8c ? __devices_133c
102d3b8c ? __devices_133d
102d3b8c ? __devices_133e
102d3b8c ? __devices_133f
102d3b8c ? __devices_1340
102d3b8c ? __devices_1341
102d3b8c ? __devices_1342
102d3b8c ? __devices_1343
102d3b8c ? __devices_1344
102d3b8c ? __devices_1345
102d3b8c ? __devices_1347
102d3b8c ? __devices_1349
102d3b8c ? __devices_134a
102d3b9c ? __devices_134b
102d3b9c ? __devices_134c
102d3b9c ? __devices_134d
102d3bdc ? __devices_134e
102d3bdc ? __devices_134f
102d3bdc ? __devices_1350
102d3bdc ? __devices_1351
102d3bdc ? __devices_1353
102d3bdc ? __devices_1354
102d3bdc ? __devices_1355
102d3bdc ? __devices_1356
102d3bdc ? __devices_1359
102d3bdc ? __devices_135a
102d3bdc ? __devices_135b
102d3bdc ? __devices_135c
102d3bdc ? __devices_135d
102d3bdc ? __devices_135e
102d3c14 ? __devices_135f
102d3c14 ? __devices_1360
102d3c14 ? __devices_1361
102d3c14 ? __devices_1362
102d3c14 ? __devices_1363
102d3c14 ? __devices_1364
102d3c14 ? __devices_1365
102d3c14 ? __devices_1366
102d3c14 ? __devices_1367
102d3c14 ? __devices_1368
102d3c14 ? __devices_1369
102d3c14 ? __devices_136a
102d3c14 ? __devices_136b
102d3c14 ? __devices_136c
102d3c14 ? __devices_136d
102d3c14 ? __devices_136f
102d3c14 ? __devices_1370
102d3c14 ? __devices_1371
102d3c14 ? __devices_1373
102d3c14 ? __devices_1374
102d3c14 ? __devices_1375
102d3c14 ? __devices_1376
102d3c14 ? __devices_1377
102d3c14 ? __devices_1378
102d3c14 ? __devices_1379
102d3c14 ? __devices_137a
102d3c14 ? __devices_137b
102d3c14 ? __devices_137c
102d3c14 ? __devices_137d
102d3c14 ? __devices_137e
102d3c14 ? __devices_137f
102d3c14 ? __devices_1380
102d3c14 ? __devices_1381
102d3c14 ? __devices_1382
102d3c14 ? __devices_1383
102d3c14 ? __devices_1384
102d3c14 ? __devices_1385
102d3c1c ? __devices_1386
102d3c1c ? __devices_1387
102d3c1c ? __devices_1388
102d3c1c ? __devices_1389
102d3c24 ? __devices_138a
102d3c24 ? __devices_138b
102d3c24 ? __devices_138c
102d3c24 ? __devices_138d
102d3c24 ? __devices_138e
102d3c24 ? __devices_138f
102d3c24 ? __devices_1390
102d3c24 ? __devices_1391
102d3c24 ? __devices_1392
102d3c24 ? __devices_1393
102d3c24 ? __devices_1394
102d3c24 ? __devices_1395
102d3c24 ? __devices_1396
102d3c24 ? __devices_1397
102d3c2c ? __devices_1398
102d3c2c ? __devices_1399
102d3c2c ? __devices_139a
102d3c2c ? __devices_139b
102d3c2c ? __devices_139c
102d3c2c ? __devices_139d
102d3c2c ? __devices_139e
102d3c2c ? __devices_139f
102d3c2c ? __devices_13a0
102d3c2c ? __devices_13a1
102d3c2c ? __devices_13a2
102d3c2c ? __devices_13a3
102d3c2c ? __devices_13a4
102d3c2c ? __devices_13a5
102d3c2c ? __devices_13a6
102d3c2c ? __devices_13a7
102d3c2c ? __devices_13a8
102d3c2c ? __devices_13a9
102d3c2c ? __devices_13aa
102d3c2c ? __devices_13ab
102d3c2c ? __devices_13ac
102d3c2c ? __devices_13ad
102d3c2c ? __devices_13ae
102d3c2c ? __devices_13af
102d3c2c ? __devices_13b0
102d3c2c ? __devices_13b1
102d3c2c ? __devices_13b2
102d3c2c ? __devices_13b3
102d3c2c ? __devices_13b4
102d3c2c ? __devices_13b5
102d3c2c ? __devices_13b6
102d3c2c ? __devices_13b7
102d3c2c ? __devices_13b8
102d3c2c ? __devices_13b9
102d3c2c ? __devices_13ba
102d3c2c ? __devices_13bb
102d3c2c ? __devices_13bc
102d3c2c ? __devices_13bd
102d3c2c ? __devices_13be
102d3c2c ? __devices_13bf
102d3c2c ? __devices_13c0
102d3c34 ? __devices_13c1
102d3c3c ? __devices_13c2
102d3c3c ? __devices_13c3
102d3c3c ? __devices_13c4
102d3c3c ? __devices_13c5
102d3c3c ? __devices_13c6
102d3c3c ? __devices_13c7
102d3c3c ? __devices_13c8
102d3c3c ? __devices_13c9
102d3c3c ? __devices_13ca
102d3c3c ? __devices_13cb
102d3c3c ? __devices_13cc
102d3c3c ? __devices_13cd
102d3c3c ? __devices_13ce
102d3c3c ? __devices_13cf
102d3c3c ? __devices_13d0
102d3c3c ? __devices_13d1
102d3c3c ? __devices_13d2
102d3c3c ? __devices_13d3
102d3c3c ? __devices_13d4
102d3c3c ? __devices_13d5
102d3c3c ? __devices_13d6
102d3c3c ? __devices_13d7
102d3c3c ? __devices_13d8
102d3c3c ? __devices_13d9
102d3c3c ? __devices_13da
102d3c3c ? __devices_13db
102d3c3c ? __devices_13dc
102d3c3c ? __devices_13dd
102d3c3c ? __devices_13de
102d3c3c ? __devices_13df
102d3c44 ? __devices_13e0
102d3c44 ? __devices_13e1
102d3c44 ? __devices_13e2
102d3c44 ? __devices_13e3
102d3c44 ? __devices_13e4
102d3c44 ? __devices_13e5
102d3c44 ? __devices_13e6
102d3c44 ? __devices_13e7
102d3c44 ? __devices_13e8
102d3c44 ? __devices_13e9
102d3c44 ? __devices_13ea
102d3c44 ? __devices_13eb
102d3c44 ? __devices_13ec
102d3c44 ? __devices_13ed
102d3c44 ? __devices_13ee
102d3c44 ? __devices_13ef
102d3c44 ? __devices_13f0
102d3c44 ? __devices_13f1
102d3c44 ? __devices_13f2
102d3c44 ? __devices_13f3
102d3c44 ? __devices_13f4
102d3c44 ? __devices_13f5
102d3c44 ? __devices_13f6
102d3c64 ? __devices_13f7
102d3c64 ? __devices_13f8
102d3c64 ? __devices_13f9
102d3c64 ? __devices_13fa
102d3c64 ? __devices_13fb
102d3c64 ? __devices_13fc
102d3c64 ? __devices_13fd
102d3c64 ? __devices_13fe
102d3c64 ? __devices_13ff
102d3c64 ? __devices_1400
102d3c64 ? __devices_1401
102d3c64 ? __devices_1402
102d3c64 ? __devices_1403
102d3c64 ? __devices_1404
102d3c64 ? __devices_1405
102d3c64 ? __devices_1406
102d3c64 ? __devices_1407
102d3c84 ? __devices_1408
102d3c84 ? __devices_1409
102d3c84 ? __devices_140a
102d3c84 ? __devices_140b
102d3c84 ? __devices_140c
102d3c84 ? __devices_140d
102d3c84 ? __devices_140e
102d3c84 ? __devices_140f
102d3c84 ? __devices_1410
102d3c84 ? __devices_1411
102d3c84 ? __devices_1412
102d3c8c ? __devices_1413
102d3c8c ? __devices_1414
102d3c8c ? __devices_1415
102d3c8c ? __devices_1416
102d3c8c ? __devices_1417
102d3c8c ? __devices_1418
102d3c8c ? __devices_1419
102d3c8c ? __devices_141a
102d3c8c ? __devices_141b
102d3c8c ? __devices_141d
102d3c8c ? __devices_141e
102d3c8c ? __devices_141f
102d3c8c ? __devices_1420
102d3c8c ? __devices_1421
102d3c8c ? __devices_1422
102d3c8c ? __devices_1423
102d3c8c ? __devices_1424
102d3c8c ? __devices_1425
102d3c8c ? __devices_1426
102d3c8c ? __devices_1427
102d3c8c ? __devices_1428
102d3c8c ? __devices_1429
102d3c8c ? __devices_142a
102d3c8c ? __devices_142b
102d3c8c ? __devices_142c
102d3c8c ? __devices_142d
102d3c8c ? __devices_142e
102d3c8c ? __devices_142f
102d3c8c ? __devices_1430
102d3c8c ? __devices_1431
102d3c8c ? __devices_1432
102d3c8c ? __devices_1433
102d3c8c ? __devices_1435
102d3c8c ? __devices_1436
102d3c8c ? __devices_1437
102d3c8c ? __devices_1438
102d3c8c ? __devices_1439
102d3c8c ? __devices_143a
102d3c8c ? __devices_143b
102d3c8c ? __devices_143c
102d3c8c ? __devices_143d
102d3c8c ? __devices_143e
102d3c8c ? __devices_143f
102d3c8c ? __devices_1440
102d3c8c ? __devices_1441
102d3c8c ? __devices_1442
102d3c8c ? __devices_1443
102d3c8c ? __devices_1444
102d3c8c ? __devices_1445
102d3c8c ? __devices_1446
102d3c8c ? __devices_1447
102d3c8c ? __devices_1448
102d3c8c ? __devices_1449
102d3c8c ? __devices_144a
102d3cdc ? __devices_144b
102d3cdc ? __devices_144c
102d3cdc ? __devices_144d
102d3cdc ? __devices_144e
102d3cdc ? __devices_144f
102d3cdc ? __devices_1450
102d3cdc ? __devices_1451
102d3cdc ? __devices_1453
102d3cdc ? __devices_1454
102d3cdc ? __devices_1455
102d3cdc ? __devices_1456
102d3cdc ? __devices_1457
102d3cdc ? __devices_1458
102d3cdc ? __devices_1459
102d3cdc ? __devices_145a
102d3cdc ? __devices_145b
102d3cdc ? __devices_145c
102d3cdc ? __devices_145d
102d3cdc ? __devices_145e
102d3cdc ? __devices_145f
102d3ce4 ? __devices_1460
102d3ce4 ? __devices_1461
102d3ce4 ? __devices_1462
102d3ce4 ? __devices_1463
102d3ce4 ? __devices_1464
102d3ce4 ? __devices_1465
102d3ce4 ? __devices_1466
102d3ce4 ? __devices_1467
102d3ce4 ? __devices_1468
102d3ce4 ? __devices_1469
102d3ce4 ? __devices_146a
102d3ce4 ? __devices_146b
102d3ce4 ? __devices_146c
102d3ce4 ? __devices_146d
102d3ce4 ? __devices_146e
102d3ce4 ? __devices_146f
102d3ce4 ? __devices_1470
102d3ce4 ? __devices_1471
102d3ce4 ? __devices_1472
102d3ce4 ? __devices_1473
102d3ce4 ? __devices_1474
102d3ce4 ? __devices_1475
102d3ce4 ? __devices_1476
102d3ce4 ? __devices_1477
102d3ce4 ? __devices_1478
102d3ce4 ? __devices_1479
102d3ce4 ? __devices_147a
102d3ce4 ? __devices_147b
102d3ce4 ? __devices_147c
102d3ce4 ? __devices_147d
102d3ce4 ? __devices_147e
102d3ce4 ? __devices_147f
102d3ce4 ? __devices_1480
102d3ce4 ? __devices_1481
102d3ce4 ? __devices_1482
102d3ce4 ? __devices_1483
102d3ce4 ? __devices_1484
102d3ce4 ? __devices_1485
102d3ce4 ? __devices_1486
102d3ce4 ? __devices_1487
102d3ce4 ? __devices_1488
102d3ce4 ? __devices_1489
102d3ce4 ? __devices_148a
102d3ce4 ? __devices_148b
102d3ce4 ? __devices_148c
102d3ce4 ? __devices_148d
102d3ce4 ? __devices_148e
102d3ce4 ? __devices_148f
102d3ce4 ? __devices_1490
102d3ce4 ? __devices_1491
102d3ce4 ? __devices_1492
102d3ce4 ? __devices_1493
102d3ce4 ? __devices_1494
102d3ce4 ? __devices_1495
102d3ce4 ? __devices_1496
102d3ce4 ? __devices_1497
102d3ce4 ? __devices_1498
102d3ce4 ? __devices_1499
102d3ce4 ? __devices_149a
102d3ce4 ? __devices_149b
102d3ce4 ? __devices_149c
102d3ce4 ? __devices_149d
102d3ce4 ? __devices_149e
102d3ce4 ? __devices_149f
102d3ce4 ? __devices_14a0
102d3ce4 ? __devices_14a1
102d3ce4 ? __devices_14a2
102d3ce4 ? __devices_14a3
102d3ce4 ? __devices_14a4
102d3ce4 ? __devices_14a5
102d3ce4 ? __devices_14a6
102d3ce4 ? __devices_14a7
102d3ce4 ? __devices_14a8
102d3ce4 ? __devices_14a9
102d3ce4 ? __devices_14aa
102d3ce4 ? __devices_14ab
102d3ce4 ? __devices_14ac
102d3ce4 ? __devices_14ad
102d3ce4 ? __devices_14ae
102d3ce4 ? __devices_14af
102d3ce4 ? __devices_14b0
102d3ce4 ? __devices_14b1
102d3ce4 ? __devices_14b2
102d3ce4 ? __devices_14b3
102d3cec ? __devices_14b4
102d3cec ? __devices_14b5
102d3cec ? __devices_14b6
102d3cec ? __devices_14b7
102d3cf4 ? __devices_14b8
102d3cf4 ? __devices_14b9
102d3cfc ? __devices_14ba
102d3cfc ? __devices_14bb
102d3cfc ? __devices_14bc
102d3cfc ? __devices_14bd
102d3cfc ? __devices_14be
102d3cfc ? __devices_14bf
102d3cfc ? __devices_14c0
102d3cfc ? __devices_14c1
102d3cfc ? __devices_14c2
102d3cfc ? __devices_14c3
102d3cfc ? __devices_14c4
102d3cfc ? __devices_14c5
102d3cfc ? __devices_14c6
102d3cfc ? __devices_14c7
102d3cfc ? __devices_14c8
102d3cfc ? __devices_14c9
102d3cfc ? __devices_14ca
102d3cfc ? __devices_14cb
102d3cfc ? __devices_14cc
102d3cfc ? __devices_14cd
102d3cfc ? __devices_14ce
102d3cfc ? __devices_14cf
102d3cfc ? __devices_14d0
102d3cfc ? __devices_14d1
102d3cfc ? __devices_14d2
102d3cfc ? __devices_14d3
102d3cfc ? __devices_14d4
102d3cfc ? __devices_14d5
102d3cfc ? __devices_14d6
102d3cfc ? __devices_14d7
102d3cfc ? __devices_14d8
102d3cfc ? __devices_14d9
102d3cfc ? __devices_14da
102d3cfc ? __devices_14db
102d3d04 ? __devices_14dc
102d3d54 ? __devices_14dd
102d3d54 ? __devices_14de
102d3d54 ? __devices_14df
102d3d54 ? __devices_14e1
102d3d54 ? __devices_14e2
102d3d54 ? __devices_14e3
102d3d54 ? __devices_14e4
102d3d54 ? __devices_14e5
102d3d54 ? __devices_14e6
102d3d54 ? __devices_14e7
102d3d54 ? __devices_14e8
102d3d54 ? __devices_14e9
102d3d54 ? __devices_14ea
102d3d54 ? __devices_14eb
102d3d54 ? __devices_14ec
102d3d54 ? __devices_14ed
102d3d54 ? __devices_14ee
102d3d54 ? __devices_14ef
102d3d54 ? __devices_14f0
102d3d54 ? __devices_14f1
102d3da4 ? __devices_14f2
102d3da4 ? __devices_14f3
102d3da4 ? __devices_14f4
102d3da4 ? __devices_14f5
102d3da4 ? __devices_14f6
102d3da4 ? __devices_14f7
102d3da4 ? __devices_14f8
102d3da4 ? __devices_14f9
102d3da4 ? __devices_14fa
102d3da4 ? __devices_14fb
102d3da4 ? __devices_14fc
102d3da4 ? __devices_14fd
102d3da4 ? __devices_14fe
102d3da4 ? __devices_14ff
102d3da4 ? __devices_1500
102d3da4 ? __devices_1501
102d3da4 ? __devices_1502
102d3da4 ? __devices_1503
102d3da4 ? __devices_1504
102d3da4 ? __devices_1505
102d3da4 ? __devices_1506
102d3da4 ? __devices_1507
102d3dec ? __devices_1508
102d3dec ? __devices_1509
102d3dec ? __devices_150a
102d3dec ? __devices_150b
102d3dec ? __devices_150c
102d3dec ? __devices_150d
102d3dec ? __devices_150e
102d3dec ? __devices_150f
102d3dec ? __devices_1510
102d3dec ? __devices_1511
102d3dec ? __devices_1512
102d3dec ? __devices_1513
102d3dec ? __devices_1514
102d3dec ? __devices_1515
102d3dec ? __devices_1516
102d3dec ? __devices_1517
102d3dec ? __devices_1518
102d3dec ? __devices_1519
102d3dec ? __devices_151a
102d3e04 ? __devices_151b
102d3e04 ? __devices_151c
102d3e04 ? __devices_151d
102d3e04 ? __devices_151e
102d3e04 ? __devices_151f
102d3e04 ? __devices_1520
102d3e04 ? __devices_1521
102d3e04 ? __devices_1522
102d3e04 ? __devices_1523
102d3e04 ? __devices_1524
102d3e04 ? __devices_1525
102d3e04 ? __devices_1526
102d3e04 ? __devices_1527
102d3e04 ? __devices_1528
102d3e04 ? __devices_1529
102d3e04 ? __devices_152a
102d3e04 ? __devices_152b
102d3e04 ? __devices_152c
102d3e04 ? __devices_152d
102d3e04 ? __devices_152e
102d3e04 ? __devices_152f
102d3e04 ? __devices_1530
102d3e04 ? __devices_1531
102d3e04 ? __devices_1532
102d3e04 ? __devices_1533
102d3e04 ? __devices_1534
102d3e04 ? __devices_1535
102d3e04 ? __devices_1537
102d3e04 ? __devices_1538
102d3e04 ? __devices_1539
102d3e04 ? __devices_153a
102d3e04 ? __devices_153b
102d3e04 ? __devices_153c
102d3e04 ? __devices_153d
102d3e04 ? __devices_153e
102d3e04 ? __devices_153f
102d3e04 ? __devices_1540
102d3e04 ? __devices_1541
102d3e04 ? __devices_1542
102d3e04 ? __devices_1543
102d3e04 ? __devices_1544
102d3e04 ? __devices_1545
102d3e04 ? __devices_1546
102d3e04 ? __devices_1547
102d3e04 ? __devices_1548
102d3e04 ? __devices_1549
102d3e04 ? __devices_154a
102d3e04 ? __devices_154b
102d3e04 ? __devices_154c
102d3e04 ? __devices_154d
102d3e04 ? __devices_154e
102d3e04 ? __devices_154f
102d3e04 ? __devices_1550
102d3e04 ? __devices_1551
102d3e04 ? __devices_1552
102d3e04 ? __devices_1553
102d3e04 ? __devices_1554
102d3e04 ? __devices_1555
102d3e04 ? __devices_1556
102d3e04 ? __devices_1557
102d3e04 ? __devices_1558
102d3e04 ? __devices_1559
102d3e04 ? __devices_155a
102d3e04 ? __devices_155b
102d3e04 ? __devices_155c
102d3e04 ? __devices_155d
102d3e04 ? __devices_155e
102d3e04 ? __devices_155f
102d3e04 ? __devices_1560
102d3e04 ? __devices_1561
102d3e04 ? __devices_1562
102d3e04 ? __devices_1563
102d3e04 ? __devices_1564
102d3e04 ? __devices_1565
102d3e04 ? __devices_1566
102d3e04 ? __devices_1567
102d3e04 ? __devices_1568
102d3e04 ? __devices_1569
102d3e04 ? __devices_156a
102d3e04 ? __devices_156b
102d3e04 ? __devices_156c
102d3e04 ? __devices_156d
102d3e04 ? __devices_156e
102d3e04 ? __devices_156f
102d3e04 ? __devices_1570
102d3e04 ? __devices_1571
102d3e9c ? __devices_1572
102d3e9c ? __devices_1573
102d3e9c ? __devices_1574
102d3e9c ? __devices_1575
102d3e9c ? __devices_1576
102d3e9c ? __devices_1578
102d3e9c ? __devices_1579
102d3e9c ? __devices_157a
102d3e9c ? __devices_157b
102d3e9c ? __devices_157c
102d3ea4 ? __devices_157d
102d3ea4 ? __devices_157e
102d3ea4 ? __devices_157f
102d3ea4 ? __devices_1580
102d3ea4 ? __devices_1581
102d3ea4 ? __devices_1582
102d3ea4 ? __devices_1583
102d3ea4 ? __devices_1584
102d3ea4 ? __devices_1585
102d3ea4 ? __devices_1586
102d3ea4 ? __devices_1587
102d3ea4 ? __devices_1588
102d3ea4 ? __devices_1589
102d3ea4 ? __devices_158a
102d3ea4 ? __devices_158b
102d3ea4 ? __devices_158c
102d3ea4 ? __devices_158d
102d3ea4 ? __devices_158e
102d3ea4 ? __devices_158f
102d3ea4 ? __devices_1590
102d3ea4 ? __devices_1591
102d3ea4 ? __devices_1592
102d3ee4 ? __devices_1593
102d3ee4 ? __devices_1594
102d3ee4 ? __devices_1595
102d3ee4 ? __devices_1596
102d3ee4 ? __devices_1597
102d3ee4 ? __devices_1598
102d3ee4 ? __devices_1599
102d3ee4 ? __devices_159a
102d3ee4 ? __devices_159b
102d3ee4 ? __devices_159c
102d3ee4 ? __devices_159d
102d3ee4 ? __devices_159e
102d3ee4 ? __devices_159f
102d3ee4 ? __devices_15a0
102d3ee4 ? __devices_15a1
102d3ee4 ? __devices_15a2
102d3ee4 ? __devices_15a3
102d3ee4 ? __devices_15a4
102d3ee4 ? __devices_15a5
102d3ee4 ? __devices_15a6
102d3ee4 ? __devices_15a7
102d3ee4 ? __devices_15a8
102d3ee4 ? __devices_15aa
102d3ee4 ? __devices_15ab
102d3ee4 ? __devices_15ac
102d3ee4 ? __devices_15ad
102d3eec ? __devices_15ae
102d3eec ? __devices_15b0
102d3eec ? __devices_15b1
102d3eec ? __devices_15b2
102d3eec ? __devices_15b3
102d3eec ? __devices_15b4
102d3eec ? __devices_15b5
102d3eec ? __devices_15b6
102d3eec ? __devices_15b7
102d3eec ? __devices_15b8
102d3eec ? __devices_15b9
102d3eec ? __devices_15ba
102d3eec ? __devices_15bb
102d3eec ? __devices_15bc
102d3eec ? __devices_15bd
102d3eec ? __devices_15be
102d3eec ? __devices_15bf
102d3eec ? __devices_15c0
102d3eec ? __devices_15c1
102d3eec ? __devices_15c2
102d3eec ? __devices_15c3
102d3eec ? __devices_15c4
102d3eec ? __devices_15c5
102d3eec ? __devices_15c6
102d3eec ? __devices_15c7
102d3eec ? __devices_15c8
102d3eec ? __devices_15c9
102d3eec ? __devices_15ca
102d3eec ? __devices_15cb
102d3eec ? __devices_15cc
102d3eec ? __devices_15cd
102d3eec ? __devices_15ce
102d3eec ? __devices_15cf
102d3eec ? __devices_15d1
102d3eec ? __devices_15d2
102d3eec ? __devices_15d3
102d3eec ? __devices_15d4
102d3eec ? __devices_15d5
102d3eec ? __devices_15d6
102d3eec ? __devices_15d7
102d3eec ? __devices_15d8
102d3eec ? __devices_15d9
102d3eec ? __devices_15da
102d3eec ? __devices_15db
102d3eec ? __devices_15dc
102d3ef4 ? __devices_15dd
102d3ef4 ? __devices_15de
102d3ef4 ? __devices_15df
102d3ef4 ? __devices_15e0
102d3ef4 ? __devices_15e1
102d3ef4 ? __devices_15e2
102d3ef4 ? __devices_15e3
102d3ef4 ? __devices_15e4
102d3ef4 ? __devices_15e5
102d3ef4 ? __devices_15e6
102d3ef4 ? __devices_15e7
102d3ef4 ? __devices_15e8
102d3ef4 ? __devices_15e9
102d3ef4 ? __devices_15ea
102d3ef4 ? __devices_15eb
102d3ef4 ? __devices_15ec
102d3ef4 ? __devices_15ed
102d3ef4 ? __devices_15ee
102d3ef4 ? __devices_15ef
102d3ef4 ? __devices_15f0
102d3ef4 ? __devices_15f1
102d3ef4 ? __devices_15f2
102d3ef4 ? __devices_15f3
102d3ef4 ? __devices_15f4
102d3ef4 ? __devices_15f5
102d3ef4 ? __devices_15f6
102d3ef4 ? __devices_15f7
102d3ef4 ? __devices_15f8
102d3ef4 ? __devices_15f9
102d3ef4 ? __devices_15fa
102d3ef4 ? __devices_15fb
102d3ef4 ? __devices_15fc
102d3ef4 ? __devices_15fd
102d3ef4 ? __devices_15fe
102d3ef4 ? __devices_15ff
102d3ef4 ? __devices_1600
102d3ef4 ? __devices_1601
102d3ef4 ? __devices_1602
102d3ef4 ? __devices_1603
102d3ef4 ? __devices_1604
102d3ef4 ? __devices_1605
102d3ef4 ? __devices_1606
102d3ef4 ? __devices_1607
102d3ef4 ? __devices_1608
102d3ef4 ? __devices_1609
102d3ef4 ? __devices_1668
102d3ef4 ? __devices_1813
102d3ef4 ? __devices_1a08
102d3efc ? __devices_1b13
102d3efc ? __devices_1c1c
102d3f04 ? __devices_1d44
102d3f0c ? __devices_1de1
102d3f2c ? __devices_2001
102d3f2c ? __devices_21c3
102d3f2c ? __devices_2348
102d3f34 ? __devices_2646
102d3f34 ? __devices_270b
102d3f34 ? __devices_270f
102d3f34 ? __devices_2711
102d3f34 ? __devices_2a15
102d3f34 ? __devices_3000
102d3f34 ? __devices_3142
102d3f34 ? __devices_3388
102d3f4c ? __devices_3411
102d3f4c ? __devices_3513
102d3f4c ? __devices_38ef
102d3f4c ? __devices_3d3d
102d3fbc ? __devices_4005
102d4024 ? __devices_4033
102d4024 ? __devices_4143
102d4024 ? __devices_416c
102d4024 ? __devices_4444
102d4024 ? __devices_4468
102d4024 ? __devices_4594
102d4024 ? __devices_45fb
102d4024 ? __devices_4680
102d4024 ? __devices_4843
102d4024 ? __devices_4916
102d402c ? __devices_4943
102d402c ? __devices_4978
102d402c ? __devices_4a14
102d4034 ? __devices_4b10
102d4034 ? __devices_4c48
102d4034 ? __devices_4ca1
102d4034 ? __devices_4d51
102d403c ? __devices_4d54
102d403c ? __devices_4ddc
102d403c ? __devices_5053
102d4044 ? __devices_5136
102d4044 ? __devices_5143
102d4044 ? __devices_5145
102d404c ? __devices_5301
102d4054 ? __devices_5333
102d424c ? __devices_544c
102d424c ? __devices_5455
102d4254 ? __devices_5519
102d4254 ? __devices_5555
102d425c ? __devices_5700
102d425c ? __devices_6356
102d425c ? __devices_6374
102d4264 ? __devices_6409
102d4264 ? __devices_6666
102d4274 ? __devices_7604
102d4274 ? __devices_7bde
102d4274 ? __devices_7fed
102d4274 ? __devices_8008
102d4284 ? __devices_8086
102d4634 ? __devices_8800
102d463c ? __devices_8866
102d463c ? __devices_8888
102d463c ? __devices_8e0e
102d463c ? __devices_8e2e
102d4644 ? __devices_9004
102d488c ? __devices_9005
102d492c ? __devices_907f
102d4934 ? __devices_919a
102d4934 ? __devices_9412
102d493c ? __devices_9699
102d4944 ? __devices_a0a0
102d4944 ? __devices_a0f1
102d4944 ? __devices_a200
102d4944 ? __devices_a259
102d4944 ? __devices_a25b
102d4944 ? __devices_a304
102d4944 ? __devices_a727
102d4944 ? __devices_aa42
102d4944 ? __devices_ac1e
102d4944 ? __devices_b1b3
102d4944 ? __devices_c001
102d4944 ? __devices_c0a9
102d4944 ? __devices_c0de
102d4944 ? __devices_c0fe
102d4944 ? __devices_ca50
102d4944 ? __devices_cafe
102d4944 ? __devices_cccc
102d4944 ? __devices_d4d4
102d494c ? __devices_d84d
102d494c ? __devices_e000
102d4954 ? __devices_e159
102d495c ? __devices_e4bf
102d495c ? __devices_ea01
102d495c ? __devices_eabb
102d495c ? __devices_ecc0
102d495c ? __devices_edd8
102d497c ? __devices_fa57
102d497c ? __devices_feda
102d497c ? __devices_fffe
102d4984 ? __devices_ffff
102d4984 ? pci_vendor_list
102d9574 ? raid_setup_args
102d957c ? __setup_str_raid_setup
102d9584 ? __setup_str_netdev_boot_setup
102d958c ? __setup_str_eth_setup
102d9594 ? user_dev_name
102d95a4 ? ic_myaddr
102d95a8 ? ic_servaddr
102d95ac ? ic_gateway
102d95b0 ? ic_netmask
102d95b4 ? ic_enable
102d95b8 ? ic_host_name_set
102d95bc ? ic_set_manually
102d95c0 ? root_server_addr
102d95c4 ? root_server_path
102d96c4 ? ic_proto_enabled
102d96c8 ? ic_got_reply
102d96cc ? ic_proto_have_if
102d96d0 ? ic_first_dev
102d96d4 ? ic_dev
102d96d8 ? bootp_packet_type
102d96ec ? __setup_str_ip_auto_config_setup
102d96f0 ? __setup_str_nfsaddrs_config_setup
102d9700 ? __setup_profile_setup
102d9700 A __setup_start
102d9708 ? __setup_root_dev_setup
102d9710 ? __setup_readonly
102d9718 ? __setup_readwrite
102d9720 ? __setup_debug_kernel
102d9728 ? __setup_quiet_kernel
102d9730 ? __setup_panic_setup
102d9738 ? __setup_console_setup
102d9740 ? __setup_reserve_setup
102d9748 ? __setup_setup_mem_frac
102d9750 ? __setup_nfs_root_setup
102d9758 ? __setup_no_initrd
102d9760 ? __setup_ramdisk_start_setup
102d9768 ? __setup_load_ramdisk
102d9770 ? __setup_prompt_ramdisk
102d9778 ? __setup_ramdisk_size
102d9780 ? __setup_ramdisk_size2
102d9788 ? __setup_ramdisk_blocksize
102d9790 ? __setup_parport_setup
102d9798 ? __setup_scsi_logging_setup
102d97a0 ? __setup_scsi_setup
102d97a8 ? __setup_scsi_luns_setup
102d97b0 ? __setup_sym53c8xx_setup
102d97b8 ? __setup_param_setup
102d97c0 ? __setup_ncr53c8xx_setup
102d97c8 ? __setup_st_setup
102d97d0 ? __setup_sg_def_reserved_size_setup
102d97d8 ? __setup_pci_setup
102d97e0 ? __setup_raid_setup
102d97e8 ? __setup_netdev_boot_setup
102d97f0 ? __setup_eth_setup
102d97f8 ? __setup_ip_auto_config_setup
102d9800 ? __setup_nfsaddrs_config_setup
102d9808 ? __initcall_pcxl_dma_init
102d9808 A __initcall_start
102d9808 A __setup_end
102d980c ? __initcall_uid_cache_init
102d9810 ? __initcall_kmem_cpucache_init
102d9814 ? __initcall_kswapd_init
102d9818 ? __initcall_init_shmem_fs
102d981c ? __initcall_bdflush_init
102d9820 ? __initcall_init_pipe_fs
102d9824 ? __initcall_fasync_init
102d9828 ? __initcall_filelock_init
102d982c ? __initcall_dnotify_init
102d9830 ? __initcall_init_som_binfmt
102d9834 ? __initcall_init_script_binfmt
102d9838 ? __initcall_init_elf_binfmt
102d983c ? __initcall_init_proc_fs
102d9840 ? __initcall_partition_setup
102d9844 ? __initcall_init_ext2_fs
102d9848 ? __initcall_init_iso9660_fs
102d984c ? __initcall_rs_init
102d9850 ? __initcall_rtc_generic_init
102d9854 ? __initcall_tulip_init
102d9858 ? __initcall_parport_gsc_init_module
102d985c ? __initcall_init_scsi
102d9860 ? __initcall_init_this_scsi_driver
102d9864 ? __initcall_init_this_scsi_driver
102d9868 ? __initcall_init_this_scsi_driver
102d986c ? __initcall_init_st
102d9870 ? __initcall_init_sd
102d9874 ? __initcall_init_sr
102d9878 ? __initcall_init_sg
102d987c ? __initcall_cdrom_init
102d9880 ? __initcall_pci_proc_init
102d9884 ? __initcall_linear_init
102d9888 ? __initcall_raid0_init
102d988c ? __initcall_raid1_init
102d9890 ? __initcall_raid5_init
102d9894 ? __initcall_calibrate_xor_block
102d9898 ? __initcall_md_init
102d989c ? __initcall_inet_init
102d98a0 ? __initcall_ip_auto_config
102d98a4 ? __initcall_af_unix_init
102d98a8 A __init_end
102d98a8 A __initcall_end
102dc000 ? init_task_union
102de000 A _edata
102de000 b pdc_console_initialized
102de004 b max_pfn
102de008 b dirty_space_id
102df008 b space_id_index
102df040 b tod_data___0
102df048 b clocktick
102df04c b halftick
102df080 b posx___0
102df088 b iodc_retbuf___1
102df140 b iodc_dbuf___2
102e0140 b pdc_result
102e01c0 b pdc_result2
102e0240 b num_devices
102e0244 b pa_devices
102e1044 b pcxl_res_lock
102e1048 b pcxl_res_map
102e104c b pcxl_res_hint
102e1050 b pcxl_res_size
102e1080 B real_stack
102e3080 b save_cr_space
102e30c0 b parisc_pci_hba
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103084a4 B sd
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103084ac B cdrom_sysctl_settings
103088a8 B pci_pci_problems
103088ac B isa_dma_bridge_buggy
103088b0 B md_size
10308cb0 B md_hd_struct
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1030a0b0 B raid1_retry_tail
1030a0b4 B wax_eisa_hba
1030a120 B hil_irq
1030a124 B hil_base
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1030a148 B xdr_one
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1030a1e4 B ipv4_config
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1030a244 B tcp_sockets_allocated
1030a248 B udp_port_rover
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1030a3c0 B ip_statistics
1030a4c0 B softnet_data
1030a500 B xdr_zero
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1030a508 B tcp_memory_allocated
1030a50c B rpc_auth_ok
1030a510 B icmp_inode
1030a6e8 B fib_info_cnt
1030a6ec B nlm_debug
1030a6f0 B rpc_system_err
1030a6f4 B rpc_autherr_badcred
1030a6f8 B rpc_proc_unavail
1030a6fc B xdr_two
1030a700 B sysctl_tcp_orphan_retries
1030a704 B raw_v4_htable
1030a784 B rpc_debug
1030a788 B local_table
1030a7c0 B net_statistics
1030a9c0 B rpc_autherr_badverf
1030a9c4 B ip_rt_max_size
1030a9c8 B rpc_prog_unavail
1030a9cc B rpc_success
1030aa00 B tcp_statistics
1030aa80 B ip_ra_chain
1030aa84 B rpc_garbage_args
1030aac0 B udp_statistics
1030ab40 B udp_hash
1030ad40 B sysctl_tcp_mem
1030ad4c B sysctl_ip_nonlocal_bind
1030ad50 B inet_peer_unused_head
1030ad54 B unix_socket_table
1030b158 B nfs_debug
1030b15c B tcp_timewait_cachep
1030b160 B errno
1030b164 B ___strtok
1031d7d8 A _end

--rwEMma7ioTxnRzrJ--




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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: re: [parisc-linux] kernel panic
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Xref: news.gmane.org gmane.linux.ports.parisc:11089

Ryan (and others who are interested),

>From the information you provided, I was able to determine that you
are overflowing the kernel stack.  The various crashes you are
seeing in signal code is simply a side effect of the kernel stack
overflow, and really has nothing to do with whatever the real bug
is.

Every task gets a 16k aligned chunk of memory which contains the
task structure and the kernel stack. The task structure is at the
beginning of this chunk of memory, and the stack starts immediately
after that. This allows us to determine the pointer to the task
structure by simply 16K aligning the stack pointer. However, when
we cross into the next 16K chunk of memory, this no longer works.
In this case, a timer interrupt came in while the stack was over
the 16K boundary, it did some time processing, which includes
charging the current "tick" to the current running process, and
since it uses a bad task pointer at that point, things go wrong.
It appears that most of the time you fail in the same manner.

However, the above information doesn't help much. The only helpful
information I can provide at this point is that the code was in
scsi_dispatch_cmd when the timer interrupt came in.

Now, why does the printk cause problems?  This is only a theory, but most
likely the printk simply slows things down enough to increase the
probability that you will get caught while the stack pointer has crossed
into the next 16K chunk of memory.  Note that even most interrupts are not
going to care about the fact that you have crossed the boundary, because
most interrupts should not care about what the current running process is.
So, in a sense, you have been lucky to catch this, because otherwise the
only side effect of crossing the 16K boundary would be trashing of memory,
which is usually a lot tougher to debug.

Note that we increased the kernel stack/task structure allocation from
8K to 16K because earlier in development we thought that we were getting
close to an overflow, and decided to go with 16K during development
to ensure that it wouldn't happen. Once things are a little more stable
we can probably go back to 8K after doing specific testing for possible
kernel stack overflows. The reason I bring this up is that most likely
8K is enough, and 16K is definitely more than enough. So, if you
are overflowing the stack, it is almost certainly a bug, and not a
"legitimate" overflow. A bug of this nature is usually caused by some
type of unintended recursion, either a bounded but too large recursion,
or an infinite recursion.

So, I don't know if this will give you enough information to easily
find the bug, possibly by code inspection. I haven't inspected the
code at all to see if there is anything obvious. If nothing turns
up very quickly, don't waste a lot of time on it. Make the following
change to arch/parisc/kernel/traps.c, in show_stack():

            /* Stack Dump! */
 
            stackptr = (unsigned int *)sp;
-           dumpptr  = (unsigned int *)(sp & ~(INIT_TASK_SIZE - 1));
+           dumpptr  = (unsigned int *)((sp & ~(INIT_TASK_SIZE - 1))-0x4000);
            printk("\nDumping Stack from %p to %p:\n",dumpptr,stackptr);
            while (dumpptr < stackptr) {
                printk("%04lx %08x %08x %08x %08x %08x %08x %08x %08x\n",

Then reproduce the problem as before.  This should cause the stack dump
procedure to dump the preceding 16K block also.  If you send me the same
stuff as before, i.e. the stack dump (which should be quite large),
register dump, and kernel symbols, I should be able to determine the
recursion sequence.

John

P.S.  For those reading this, I should make it clear that stack dumps are
completely worthless without either the associated kernel or at least the
kernel symbol table.  So, if you find a bug which produces a stack dump,
and you want to report it, make sure you either make the kernel that
produced it available (please don't include kernels in email to this
list!), or at least provide a listing of the kernel symbols and addresses,
like Ryan did.




From - Thu Nov 08 21:17:41 2018
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From: Bjorn Helgaas <bjorn_helgaas@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] WAX EISA driver
Date: Tue, 22 May 2001 16:40:52 -0600
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No, I'm not signing up to make WAX work, and I really don't know any 
details about it; I just noticed what appear to be some obvious bugs while 
making some PCI changes.

Attached is a completely untested patch that makes it *look* more like the 
dino and lba code.  I do not plan to check this in, because I don't have 
the time or knowledge to test it.  If you do, feel free :-)

Bjorn


Index: drivers/gsc/wax_eisa.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/gsc/wax_eisa.c,v
retrieving revision 1.3
diff -u -p -r1.3 wax_eisa.c
--- wax_eisa.c	2001/05/01 13:32:09	1.3
+++ wax_eisa.c	2001/05/22 22:04:58
@@ -41,7 +41,7 @@ static struct pa_iodc_driver wax_eisa_dr
 };
 
 #define WAX_EISA_OUT(type, size) \
-static void wax_out##type (u##size d, int addr) \
+static void wax_out##type (struct pci_hba_data *hba, u16 addr, u##size d) 
\
 { \
 	u32 out_addr; \
 	if (((addr >= 0x00080000) && (addr < 0x00100000)) || \
@@ -59,7 +59,7 @@ WAX_EISA_OUT(w,16)
 WAX_EISA_OUT(l,32)
 
 #define WAX_EISA_IN(type, size) \
-static u##size wax_in##type (int addr) \
+static u##size wax_in##type (struct pci_hba_data *hba, u16 addr) \
 { \
 	u32 out_addr; \
 	if (((addr >= 0x00080000) && (addr < 0x00100000)) || \
@@ -68,7 +68,7 @@ static u##size wax_in##type (int addr) \
 			((addr & 0x03f8) << 9) + (addr & 0x0007) ; \
 		return gsc_read##type(out_addr); \
 	} else { \
-		printk("WAX EISA Ack, cannot read from 0x%x\n",addr); \
+		printk("WAX EISA: Ack, cannot read from 0x%x\n",addr); \
 		return -1; \
 	} \
 }
@@ -123,7 +123,8 @@ wax_eisa_driver_init(struct hp_device *d
 	version = gsc_readw(d->hpa+0x7000);
 	printk(KERN_INFO "Wax EISA bus adapter version 0x%x at 
0x%p\n",version,d->hpa);
 
-	pcibios_register_hba((struct pci_hba_data *) &wax_port_ops);
+	pcibios_register_hba(HBA_DATA(&wax_eisa_hba));
+	pci_port = &wax_port_ops;
 
 #if 0
 	/* Turn off lock control */




From - Thu Nov 08 21:17:41 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Major hppa binutils problem
Date: Tue, 22 May 2001 18:07:59 -0600
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To: parisc-linux@parisc-linux.org, debian-hppa@lists.debian.org
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Xref: news.gmane.org gmane.linux.ports.parisc:11091

As was reported here before binutils versions 2.11.90.0.7 and 2.11.90.0.8 have 
a bug on hppa that causes binutils to generates broken executables. The bug is 
also viral in nature in that if you build with shared libraries built with the 
broken binutils, even if the broken binutils is not installed, the resulting 
executables will still be broken.

Unforturately the Debian autobuilder built and uploaded binutils 2.11.90.0.7-1 
so you may have "infected" your system if you did an apt-get upgrade. Also 
several Debian developers had done so and then uploaded packages built with 
the bad binutils.

Right now we are recommending that people revert to 2.11.90.0.1 available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/
newcompilers-20010326/binutils_2.11.90.0.1-1_hppa.deb

Paul Bame has written a script you can run to check and see if your system has 
any bad debs installed. Its available at,

ftp://puffin.external.hp.com/pub/parisc/tools/plt-checker

Lamont Jones is working on scanning all the hppa packages in the Debian 
archive to come up with a list of what packages are broken. Once he has the 
list we will work on getting them all rebuilt cleanly and uploaded.

Until they have all been rebuilt/uploaded, DO NOT APT-GET UPGRADE, you will 
infect your system. When everything is done and we've confirmed that the 
archive is clean, someone will announce it's ok to proceed.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






From - Thu Nov 08 21:17:41 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] New hppa toolchain debs for testing
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Hi pa/linux addicts,

I have built new native toolchain debs. They are,

binutils - based on 2.11.90.0.8 upstream with Alan Modra's patch,
    http://sources.redhat.com/ml/binutils/2001-05/msg00284.html

gcc-3.0 - based on 3.0-0pre010427 debian package with a new hppa patch

glibc - based on 2.2.3-2 debian package with a new hppa patch

This is a big step forward from the glibc 2.2.1 and gcc 3.0-0pre010223 
packages that we have been using. Because these are so new and we need things 
to be stable for the release at the end of the month, these packages are 
currently FOR TESTING ONLY. Please give them a try but do not 
distribute/upload any packages built with them. If we determine that they are 
equal to or better than the older toolchain then we may upload them to the 
Debian archive and then people can distribute/upload.

The packages are available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/newcompilers-20010521/

Report any problems to the list.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel panic
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John,

Thanks for the great explaination!

>             /* Stack Dump! */
>  
>             stackptr = (unsigned int *)sp;
> -           dumpptr  = (unsigned int *)(sp & ~(INIT_TASK_SIZE - 1));
> +           dumpptr  = (unsigned int *)((sp & ~(INIT_TASK_SIZE - 1))-0x4000);
>             printk("\nDumping Stack from %p to %p:\n",dumpptr,stackptr);
>             while (dumpptr < stackptr) {
>                 printk("%04lx %08x %08x %08x %08x %08x %08x %08x %08x\n",
> 
> Then reproduce the problem as before.  This should cause the stack dump
> procedure to dump the preceding 16K block also.  If you send me the same
> stuff as before, i.e. the stack dump (which should be quite large),
> register dump, and kernel symbols, I should be able to determine the
> recursion sequence.

I have attached the panic output and the symbol table again.

Thanks for the help!

- Ryan

-- 

--UlVJffcvxoiEqYs2
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="ccio.stacktrace.jsm.1"

vega:~# mke2fs /dev/sdb3
mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
505920 inodes, 1011165 blocks
50558 blocks (5.00%) reserved for the super user
First data block=0
31 block groups
32768 blocks per group, 32768 fragments per group
16320 inodes per group
Superblock backups stored on blocks: 
	32768, 98304, 163840, 229376, 294912, 819200, 884736

Writing inode tables: done                            
Writing superblocks and filesystem accounting ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
information: ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 56 entries
ccio_map_sg() DONE 56 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings
ccio_map_sg() START 64 entries
ccio_map_sg() DONE 64 mappings

Dumping Stack from 3f2a2000 to 3f2a7d80:
2000 f7090000 0000001f e81f1f7d 00000000 00000011 00000040 10252004 10252028
2020 00dfdfdf 00000000 00dfdfdf 1011113c 00dfdfdf 00000000 00dfdfdf 00000000
2040 3f2a1780 00058260 00027630 001e8480 3f2a1780 1029a810 100e3cc0 10fe9800
2060 10252000 00000001 00000040 101064f8 00000000 100eeb00 00dfdfdf 00000000
2080 3f2a1780 00000001 10fe8398 0000ffff 1029b6d0 00000000 00000000 3fbf0c00
20a0 100ef3c0 0000000f 00dfdfdf 10118518 00dfdfdf 00000000 00dfdfdf 00000000
20c0 00000000 10289534 10289534 0000000e 0000001f 0000003c 0000003e 10289010
20e0 00000001 102e3622 00000004 10102f68 0000001e 102e3622 00dfdfdf 00000000
2100 20000000 00000002 00000001 00000022 00dfdfdf 00000000 00dfdfdf 00000000
2120 00dfdfdf 00000000 00dfdfdf 10102e58 00dfdfdf 00000000 00dfdfdf 00000000
2140 3f2a1e40 00000022 10276090 00000000 00dfdfdf 00000000 00dfdfdf 00000000
2160 00dfdfdf 00000000 00dfdfdf 101f2f28 00dfdfdf 00000000 00dfdfdf 00000000
2180 102f9010 3f2a1e40 10fe8080 00000000 00000020 00000000 10273904 3f2a2149
21a0 00000001 0000ffff 3f2a1780 10102e58 0000000e 001e8480 3f2a1780 1029a810
21c0 102f9010 3f2a1e40 00000063 10fe9448 00000001 0000ffff 3f2a1e40 00058260
21e0 00027630 001e8480 3f2a1e40 101c4c24 10276360 00000002 10276384 00000001
2200 00000002 10276384 00000001 1029a908 3fbf0e00 0000000e 00000000 4001b336
2220 00dfdfdf 4001b342 00dfdfdf 4001b34e 00dfdfdf 4001b35a 00dfdfdf 4001b31e
2240 00dfdfdf 4001b31e 00dfdfdf 4001b31e 00dfdfdf 4001b31e 00dfdfdf 4001b31e
2260 00dfdfdf 4001b31e 00dfdfdf 101b3b48 00dfdfdf 4001b31e 00dfdfdf 4001b31e
2280 3fbf0e00 1029a908 3f2a1e40 0000000e 100e6000 00000060 100f3940 102f9010
22a0 3f2a1e40 00000060 100f3940 101d24a8 00dfdfdf 4001b31e 00dfdfdf 4001b31e
22c0 a0000000 10276360 10fe8380 100ef3c0 00000000 00000000 00000bb6 00000000
22e0 3fbf0e00 4001b31e 00dfdfdf 101bba60 00dfdfdf 00000000 00dfdfdf 00000000
2300 00000008 10262000 00000001 00000001 00000044 00099000 00dfdfdf 00000000
2320 00dfdfdf 00000000 00dfdfdf 101b4dfc 00dfdfdf 00000000 00dfdfdf 00000000
2340 00000080 00000000 100ee000 00000040 00000001 3fbf0e00 00dfdfdf 00000000
2360 00dfdfdf 00000000 00dfdfdf 101bb194 00dfdfdf 00000000 00dfdfdf 00000000
2380 3fbf0e00 100e3000 3fbf0e00 00000000 00dfdfdf 00000000 00dfdfdf 00000000
23a0 00dfdfdf 00000000 00dfdfdf 101b4c2c 00dfdfdf 00000000 00dfdfdf 00000000
23c0 00000001 00000001 3fbf0e00 00000000 3fbf0eac 10fe8380 00dfdfdf 00000000
23e0 00dfdfdf 00000000 00dfdfdf 101af994 00dfdfdf 00000000 00dfdfdf 00000000
2400 10fe8380 00000001 00058260 00027630 001e8480 3f2a1e40 00000001 00000080
2420 10fe8398 00000001 00000001 101b4988 0000000f 10fe8380 00dfdfdf 00000000
2440 00000080 10fe8398 0000000f 00000001 3fbf0e00 10fe8398 3fbf0eac 10fe8380
2460 00dfdfdf 00000000 00dfdfdf 10110ad0 00dfdfdf 00000000 00dfdfdf 00000000
2480 100e6000 0000000e 08f30000 10fff014 10251800 00000000 00dfdfdf 00000000
24a0 00dfdfdf 00000000 00dfdfdf 101b52b4 00dfdfdf 00000000 00dfdfdf 00000000
24c0 100ef3c0 10fe8380 3feb1740 3fbf0e00 00dfdfdf 00000000 00dfdfdf 00000000
24e0 00dfdfdf 00000000 0000ffff 101adcf0 00000000 100ef3c0 10fe8380 3feb1740
2500 0004ff0f 1029a810 101adcf0 0000000f 100ef3c0 3fbf0e00 00000000 00000000
2520 1029b6d0 0000ffff 10fe8398 00000001 3f2a1e40 001e8480 00027630 00058260
2540 3f2a1e40 0000ffff 00000001 00000000 00000000 100e5298 90090009 100e3000
2560 fffffb10 f2ffd014 100e6000 10274010 00000000 00000040 3f2a2740 101184dc
2580 08000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
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71c0 00000000 10289534 10289534 0000000e 0000001f 0000003c 0000003e 10289010
71e0 00000001 102e3622 00000004 10102f68 0000001e 102e3622 00dfdfdf 00000000
7200 20000000 00000002 00000001 00000022 00dfdfdf 00000000 00dfdfdf 4001b31e
7220 00dfdfdf 4001b31e 00dfdfdf 10102e58 00dfdfdf 4001b31e 00dfdfdf 4001b31e
7240 3f2a6f40 00000022 10276090 4001b31e 00dfdfdf 4001b31e 00dfdfdf 4001b31e
7260 00dfdfdf 4001b31e 00dfdfdf 101f2f28 00dfdfdf 4001b31e 00dfdfdf 4001b31e
7280 102f9010 3f2a6f40 10fe8080 00000000 00000020 00000000 10273904 3f2a7249
72a0 00000001 0000ffff 3f2a6880 10102e58 0000000e 001e8480 3f2a6880 1029a810
72c0 102f9010 3f2a6f40 00000063 10fe9448 ffffffff 3f2a7114 102e3616 1025200f
72e0 00dfdfdf 4001b31e 01dfdfdf 101c4c24 00dfdfdf 00000000 00dfdfdf 00000000
7300 00000002 10276384 00000001 1029a908 3fbf0e00 0000000e 00000000 00000000
7320 00dfdfdf 00000000 00dfdfdf 00000000 00dfdfdf 00000000 00dfdfdf 00000000
7340 00dfdfdf 00000000 00dfdfdf 00000000 00dfdfdf 00000000 00dfdfdf 00000000
7360 00dfdfdf 00000000 00dfdfdf 101b3b48 00dfdfdf 00000000 00dfdfdf 00000000
7380 3fbf0e00 1029a908 3f2a6f40 0000000e 100e6000 00000000 00dfdfdf 00000000
73a0 00dfdfdf 00000000 00dfdfdf 101d24a8 00dfdfdf 00000000 00dfdfdf 00000000
73c0 a0000000 10276360 10fe8380 100ef3c0 00000000 00000000 00000bb6 00000000
73e0 3fbf0e00 00000000 00dfdfdf 101bba60 00dfdfdf 00000000 00dfdfdf 00000000
7400 00000000 10262000 00000001 00000001 0000005c 00099000 00dfdfdf 00000000
7420 00dfdfdf 00000000 00dfdfdf 101b4dfc 00dfdfdf 00000000 00dfdfdf 00000000
7440 00000080 00000000 100ee000 00000040 00000001 3fbf0e00 00dfdfdf 00000000
7460 00dfdfdf 00000000 00dfdfdf 101bb194 00dfdfdf 00000000 00dfdfdf 00000000
7480 3fbf0e00 100e3000 3fbf0e00 00000000 00dfdfdf 00000000 00dfdfdf 00000000
74a0 00dfdfdf 00000000 00dfdfdf 101b4c2c 00dfdfdf 00000000 00dfdfdf 00000000
74c0 00000001 00000001 3fbf0e00 00000000 3fbf0eac 10fe8380 00dfdfdf 00000000
74e0 00dfdfdf 00000000 00dfdfdf 101af994 00dfdfdf 00000000 00dfdfdf 00000000
7500 10fe8380 00000001 00058260 00027630 001e8480 3f2a6f40 00000001 00000080
7520 10fe8398 00000001 00000001 101b4988 0000000f 10fe8380 00dfdfdf 00000000
7540 00000080 10fe8398 0000000f 00000001 3fbf0e00 10fe8398 3fbf0eac 10fe8380
7560 00dfdfdf 00000000 00dfdfdf 10110ad0 00dfdfdf 00000000 00dfdfdf 00000000
7580 100e6000 0000000e 0a6f0000 10fff014 10251800 00000000 00dfdfdf 00000000
75a0 00dfdfdf 00000000 00dfdfdf 101b52b4 00dfdfdf 00000000 00dfdfdf 00000000
75c0 100ef3c0 10fe8380 3feb2a40 3fbf0e00 00dfdfdf 00000000 00dfdfdf 00000000
75e0 00dfdfdf 00000000 0000ffff 101adcf0 00000000 100ef3c0 10fe8380 3feb2a40
7600 0004ff0f 1029a810 101adcf0 0000000f 100ef3c0 3fbf0e00 00000000 00000000
7620 1029b6d0 0000ffff 10fe8398 00000001 3f2a6f40 001e8480 00027630 00058260
7640 3f2a6f40 0000ffff 00000001 00000000 00000000 100e5298 90090009 100e3000
7660 fffffb10 f2ffd014 100e6000 10274010 00000000 00000040 3f2a7840 101184dc
7680 08000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
76a0 0000000a fe4917e0 2c760000 84cda717 00000001 bc9c0000 f9abb0d5 f309b5b9
76c0 00000009 c0b4e852 102dc000 00000000 1028e064 102f9010 102fc010 10274010
76e0 102f8810 00000001 10292010 1013848c 102f8810 102d98a8 102d98a8 102d9820
7700 3fbb5000 1028e60c 00000000 00000002 00000000 102a46c0 0004000e 0000004d
7720 102f9010 3fbb5000 1028e60c 10149de4 00000000 00001000 00000000 00000000
7740 00000000 00000000 3fe00000 00000000 412e8480 00000000 00000000 0000004d
7760 ffffffff 102fc010 10274010 101385f4 3fbed400 1028cee0 10292010 102f9010
7780 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
77a0 00000000 00000000 101adcf4 101adcf8 7f2bb706 00000000 00dfdfdf 00000000
77c0 00dfdfdf 0000001f e81f1f7d 00000000 00000011 00000040 10252004 10252028
77e0 00dfdfdf 00000000 00dfdfdf 1011113c 00dfdfdf 00000000 00dfdfdf 00000000
7800 3f2a6f40 00058260 00027630 001e8480 3f2a6f40 1029a810 100e34c0 10fe9800
7820 10252000 00000001 00000040 101064f8 00000000 100ee500 00000000 00000000
7840 3f2a6f40 00000001 10fe8398 0000ffff 1029b6d0 00000000 00000000 3fbf0e00
7860 100ef3c0 0000000f 00000000 10118518 00000000 00000000 00000000 00000000
7880 00000000 10289534 10289534 0000000e 0000001f 0000003c 0000003e 10289010
78a0 00000001 102e3622 00000004 10102f68 0000001e 102e3622 00000000 00000000
78c0 80000000 00000000 00000001 00000020 00000000 00000000 00000000 00000000
78e0 00000000 00000000 00000000 10102e58 00000000 00000000 00000000 00000000
7900 00000000 00000000 34360000 00000000 00000000 00000000 00000000 00000000
7920 00000000 00000000 00000000 10102858 00000000 00000000 00000000 00000000
7940 00000000 00000000 00000000 00000000 00000020 00000000 10273904 3f2a7909
7960 00000001 0000ffff 3f2a6f40 1011edb0 0000000e 001e8480 3f2a6f40 1029a810
7980 102f9010 3f2a7600 00000020 10276060 ffffffff 3f2a77d4 102e3616 1025200f
79a0 00000000 00000000 00000000 1011e938 00000000 00000000 00000000 00000000
79c0 00000000 00000001 3f2a4000 00000000 00000000 00000000 00000000 00000000
79e0 00000000 00000000 00000000 1011e8ac 00000000 00000000 00000000 00000000
7a00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
7a20 00000000 00000000 00000000 10120104 00000000 00000000 00000000 00000000
7a40 00000001 00000001 00000000 3f2a4000 00000000 00000000 00000000 00000000
7a60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
7a80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
7aa0 00000000 00000000 00000000 1011fdb4 00000000 00000000 00000000 00000000
7ac0 00000000 3f2a4000 00000015 00000000 00000000 00000000 00000000 00000000
7ae0 00000000 00000000 00000000 1011fc68 00000000 00000000 00000000 00000000
7b00 0000000e 00000000 00000014 3f2a4000 00000000 00000000 00000000 00000000
7b20 00000000 00000000 00000000 1011fb18 00000000 00000000 00000000 00000000
7b40 0004000e 00000000 1011fb18 102f95d4 00000001 00000015 3f2a4450 00000001
7b60 10276384 00000002 10276360 a0000000 3f2a7600 001e8480 00027630 00058260
7b80 3f2a7600 0000ffff 00000001 00000000 0000000e 00000001 100e9000 0000000e
7ba0 3f2a4450 00001080 00000000 10274010 100e90c0 00000000 3f2a7d80 1012ed90
7bc0 08000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
7be0 0000000a fe4917e0 2c760000 84cda717 00000001 bc9c0000 f9abb0d5 f309b5b9
7c00 00000009 c0b4e852 102dc000 00000000 1028e064 102f9010 102fc010 10274010
7c20 102f8810 00000001 10292010 1013848c 102f8810 102d98a8 102d98a8 102d9820
7c40 3fbb5000 1028e60c 00000000 00000002 00000000 102a46c0 0004000e 0000004d
7c60 102f9010 3fbb5000 1028e60c 10149de4 00000000 00001000 00000000 00000000
7c80 00000000 00000000 3fe00000 00000000 412e8480 00000000 00000000 0000004d
7ca0 ffffffff 102fc010 10274010 101385f4 3fbed400 1028cee0 10292010 102f9010
7cc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
7ce0 00000000 00000000 1011fb3c 1011fb40 7f2bb706 00000000 00000000 00000000
7d00 00000000 00000014 0e7c1280 00000000 00000000 00000000 00000000 00000000
7d20 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
7d40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
7d60 00000000 00000000 00000000 10106744 00000000 00000000 00000000 00000000

Kernel Fault: Code=26 regs=3f2a7b40 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110
r0-3	 00000000 00000000 1011fb18 102f95d4
r4-7	 00000001 00000015 3f2a4450 00000001
r8-11	 10276384 00000002 10276360 a0000000
r12-15	 3f2a7600 001e8480 00027630 00058260
r16-19	 3f2a7600 0000ffff 00000001 00000000
r20-23	 0000000e 00000001 100e9000 0000000e
r24-27	 3f2a4450 00001080 00000000 10274010
r28-31	 100e90c0 00000000 3f2a7d80 1012ed90
sr0-3	 00000000 00000000 00000000 00000000
sr4-7	 00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1011fb3c 1011fb40
 IIR: 0e7c1280    ISR: 00000000  IOR: 00000000
ORIG_R28: 00000000

--UlVJffcvxoiEqYs2
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="System.map"

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1018b080 T add_interrupt_randomness
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1018b9f4 t random_poll
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1018bf1c t .L1116
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1018c7dc T secure_ip_id
1018c848 T _kd_mksound
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1018f1e0 T con_set_trans_new
1018f25c T con_get_trans_new
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1018fc34 T con_get_unimap
1018fdb4 T con_protect_unimap
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10190e38 t .L929
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101910ec t .L956
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1019174c t .L1044
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10191954 T scrollback
101919f0 T scrollfront
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10191b20 t .L1081
10191b20 t ri
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10191f64 t csi_X
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10192a8c t .L1345
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101954ac t .L2118
101954c8 t con_close
1019550c t vc_init
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10195814 t .L2177
1019585c t .L2163
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101958c4 t .L2190
101958cc t .L2191
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1019596c t vesa_powerdown
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10195c00 t .L2264
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1019657c T vcs_scr_readw
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101965f8 t .L2547
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1019dddc t .L649
1019dddc t lasikbd_leds
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1019deec t .L667
1019df68 t lasikbd_interrupt
1019df94 T lasikbd_request_irq
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1019e5dc t def_init_hw
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1019e678 T handle_sysrq
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1019e970 t .L794
1019e984 t .L795
1019e9b4 t .L796
1019e9dc t .L797
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1019eaa0 t .L801
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1019ee2c t .L914
1019ee8c t .L915
1019ee98 T do_emergency_sync
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1019f13c t .L740
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1019f9a0 t .L872
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1019ff44 t set_hw_time
101a003c t gen_do_uie_timer
101a0088 t gen_rtc_llseek
101a0094 t gen_rtc_read
101a0144 t .L719
101a01bc t .L778
101a01bc t gen_rtc_ioctl
101a02f4 t gen_rtc_open
101a0324 t gen_rtc_release
101a0364 T t21142_timer
101a03fc t .L895
101a0470 t .L916
101a04fc t .L908
101a05e4 t .L917
101a061c t .L918
101a0620 T t21142_start_nway
101a0744 t .L930
101a0774 t .L934
101a0794 T t21142_lnk_change
101a086c t .L962
101a0938 t .L994
101a096c t .L995
101a09e4 t .L996
101a0a94 t .L947
101a0ae0 t .L957
101a0b3c t .L997
101a0b74 t .L998
101a0b9c t .L999
101a0be4 T tulip_parse_eeprom
101a0c9c t .L891
101a0e64 t .L878
101a11bc t .L982
101a1218 t .L983
101a128c t .L984
101a12b0 T tulip_read_eeprom
101a1414 t tulip_refill_rx
101a1544 t tulip_rx
101a16b0 t .L904
101a18c4 t .L955
101a1994 T tulip_interrupt
101a2154 T tulip_mdio_read
101a2268 t .L878
101a22a4 t .L924
101a22c4 t .L925
101a22d0 t .L926
101a2328 T tulip_mdio_write
101a2424 t .L927
101a2460 t .L968
101a2484 t .L969
101a2494 t .L970
101a24c4 T tulip_select_media
101a25d8 t .L973
101a2610 t .L1045
101a278c t .L1127
101a298c t .L994
101a2a5c t .L1128
101a2ba4 t .L1129
101a2c84 t .L1071
101a2ca8 t .L1130
101a2cc0 t .L1131
101a2d34 t .L1132
101a2d6c t .L1133
101a2da0 t .L1134
101a2dc4 t .L1135
101a2e94 t .L1136
101a2e98 T tulip_check_duplex
101a30a0 T pnic_do_nway
101a3204 T pnic_lnk_change
101a3304 t .L901
101a3364 T pnic_timer
101a3364 t .L905
101a33d4 t .L909
101a34ec t .L935
101a3548 t .L918
101a35d4 t .L936
101a362c t .L937
101a3654 t .L938
101a3658 T tulip_timer
101a3940 t .L980
101a39a0 t .L1010
101a3b18 t .L1011
101a3bfc t .L1012
101a3cb8 t .L1013
101a3cbc T mxic_timer
101a3d24 T comet_timer
101a3dac t tulip_up
101a3f24 t .L910
101a4008 t .L917
101a40b0 t .L946
101a4304 t .L999
101a43e8 t .L1000
101a4450 t .L1001
101a4474 t .L1002
101a44cc t .L1003
101a4504 t .L1004
101a45d8 t tulip_open
101a4648 t tulip_tx_timeout
101a46ac t .L1015
101a46f8 t .L1020
101a482c t .L1048
101a4914 t .L1049
101a497c t .L1050
101a4980 t tulip_init_ring
101a4bd4 t tulip_start_xmit
101a4d20 t tulip_down
101a4d94 t .L1114
101a4e04 t .L1120
101a4e04 t tulip_close
101a4f30 t .L1126
101a4fac t .L1138
101a4ff4 t .L1150
101a4ffc t .L1151
101a4ffc t tulip_get_stats
101a504c t private_ioctl
101a52a8 t build_setup_frame_hash
101a5418 t build_setup_frame_perfect
101a54e4 t set_rx_mode
101a5564 t .L1274
101a56f0 t .L1336
101a571c t .L1303
101a58b4 t .L1337
101a58b4 t tulip_init_one
101a5940 t .L1339
101a5a80 t .L1368
101a5a9c t .L1353
101a5aac t .L1569
101a5c24 t .L1377
101a5fb4 t .L1480
101a615c t .L1494
101a6228 t .L1615
101a6284 t .L1616
101a63e8 t .L1617
101a6610 t .L1618
101a6620 t .L1619
101a6680 t .L1620
101a66c8 t .L1621
101a6708 t .L1622
101a6774 t .L1623
101a6784 t .L1624
101a679c t .L1625
101a679c t tulip_suspend
101a6818 t tulip_resume
101a6844 t .L1637
101a68e8 t .L1652
101a6920 t tulip_remove_one
101a69e0 t init_alloc_dev
101a6a5c t init_netdev
101a6b3c T init_etherdev
101a6b64 t eth_mac_addr
101a6ba0 t eth_change_mtu
101a6bbc T ether_setup
101a6c54 T ether_config
101a6cac T register_netdev
101a6d44 T unregister_netdev
101a6d70 t loopback_xmit
101a6ddc t .L1036
101a6e5c t .L1041
101a6e88 t .L1031
101a6e98 t .L1042
101a6eb4 t get_stats
101a6ebc t i596_display_data
101a7044 t .L1009
101a7064 t .L1017
101a7064 t rebuild_rx_bufs
101a7108 t .L1052
101a711c t .L1058
101a711c t init_i596_mem
101a7240 t .L1067
101a72c0 t .L1074
101a7310 t .L1075
101a73f4 t .L1084
101a743c t .L1088
101a7484 t .L1092
101a74bc t .L1096
101a74d8 t .L1101
101a7528 t .L1102
101a7594 t .L1112
101a75b4 t .L1118
101a7604 t .L1119
101a7680 t .L1155
101a768c t .L1156
101a7698 t .L1157
101a76d0 t .L1158
101a76dc t .L1159
101a76ec t .L1160
101a76fc t .L1161
101a770c t .L1162
101a7718 t .L1163
101a7748 t .L1164
101a7754 t .L1165
101a7778 t .L1166
101a7778 t i596_add_cmd
101a7818 t .L1337
101a7850 t .L1345
101a78cc t .L1363
101a7920 t .L1364
101a7938 t .L1369
101a7968 t .L1371
101a7984 t .L1372
101a79d8 t .L1373
101a79f0 t .L1378
101a7a48 t .L1379
101a7a5c t .L1389
101a7ab0 t .L1390
101a7ac8 t .L1395
101a7ae0 t .L1396
101a7b10 t .L1398
101a7b4c t .L1402
101a7cac t .L1361
101a7cbc t .L1415
101a7d14 t .L1426
101a7d54 t .L1428
101a7d60 t .L1399
101a7df4 t .L1471
101a7e1c t .L1472
101a7e28 t .L1473
101a7eb0 t .L1474
101a7edc t .L1475
101a7fec t .L1476
101a7ffc t .L1477
101a8008 t .L1478
101a8030 t .L1479
101a803c t .L1480
101a804c t .L1481
101a8054 t .L1482
101a80a0 t .L1386
101a80d0 t .L1483
101a80f8 t .L1484
101a8104 t .L1485
101a8110 t .L1486
101a811c t .L1487
101a8144 t .L1488
101a8150 t .L1489
101a815c t .L1490
101a816c t .L1491
101a817c t .L1346
101a81d0 t .L1347
101a81e8 t .L1353
101a8214 t .L1354
101a8228 t .L1492
101a8234 t .L1493
101a825c t .L1494
101a8268 t .L1495
101a8274 t .L1496
101a8280 t .L1497
101a8280 t i596_open
101a8304 t .L1524
101a8528 t .L1512
101a85b4 t .L1521
101a85c8 t .L1529
101a85d8 t .L1530
101a861c t .L1531
101a8628 t i596_tx_timeout
101a86e4 t .L1609
101a8700 t .L1607
101a87dc t .L1649
101a8820 t .L1538
101a8878 t .L1539
101a8890 t .L1544
101a88c4 t .L1546
101a88e0 t .L1547
101a8938 t .L1548
101a8950 t .L1553
101a89a8 t .L1554
101a89bc t .L1564
101a8a14 t .L1565
101a8a2c t .L1570
101a8a44 t .L1571
101a8a74 t .L1573
101a8ab0 t .L1577
101a8c14 t .L1536
101a8c24 t .L1590
101a8c7c t .L1601
101a8cbc t .L1603
101a8cc8 t .L1574
101a8d10 t .L1650
101a8d20 t .L1651
101a8d48 t .L1652
101a8d54 t .L1653
101a8ddc t .L1654
101a8e08 t .L1655
101a8f18 t .L1656
101a8f28 t .L1657
101a8f34 t .L1658
101a8f5c t .L1659
101a8f68 t .L1660
101a8f78 t .L1661
101a8f80 t .L1662
101a8fcc t .L1561
101a8ffc t .L1663
101a9024 t .L1664
101a9030 t .L1665
101a903c t .L1666
101a9048 t .L1667
101a9070 t .L1668
101a907c t .L1669
101a9088 t .L1670
101a9088 t i596_start_xmit
101a917c t .L1680
101a91cc t .L1693
101a9278 t .L1686
101a92c4 t .L1694
101a92cc t print_eth
101a9374 t i596_interrupt
101a93e0 t .L1752
101a9434 t .L1753
101a944c t .L1759
101a955c t .L1777
101a9570 t .L1801
101a9590 t .L1922
101a95c0 t .L1923
101a9620 t .L1924
101a9770 t .L1805
101a97b4 t .L1764
101a9818 t .L1822
101a9854 t .L1826
101a99b4 t .L1820
101a99c4 t .L1839
101a9a1c t .L1850
101a9a5c t .L1852
101a9a68 t .L1823
101a9af4 t .L1861
101a9b48 t .L1862
101a9b60 t .L1868
101a9b74 t .L1869
101a9b90 t .L1872
101a9be4 t .L1873
101a9bfc t .L1879
101a9c14 t .L1750
101a9c84 t .L1925
101a9c90 t .L1926
101a9c9c t .L1927
101a9ca8 t .L1928
101a9ccc t .L1929
101a9cd8 t .L1930
101a9ce4 t .L1931
101a9cf4 t .L1932
101a9d1c t .L1933
101a9d28 t .L1934
101a9db0 t .L1935
101a9ddc t .L1936
101a9eec t .L1937
101a9efc t .L1938
101a9f0c t .L1939
101a9f14 t .L1940
101a9f40 t .L1941
101a9f64 t .L1942
101a9f70 t .L1943
101a9f80 t .L1944
101a9f94 t .L1945
101a9f98 t i596_close
101aa01c t .L1949
101aa070 t .L1950
101aa088 t .L1956
101aa0a0 t .L1957
101aa0bc t .L1960
101aa110 t .L1961
101aa128 t .L1967
101aa190 t .L1969
101aa1a4 t .L1979
101aa1f8 t .L1980
101aa210 t .L1985
101aa224 t .L1986
101aa2b4 t .L1992
101aa318 t .L2015
101aa324 t .L2016
101aa34c t .L2017
101aa358 t .L2018
101aa368 t .L2019
101aa370 t .L2020
101aa3bc t .L1976
101aa3ec t .L2021
101aa414 t .L2022
101aa420 t .L2023
101aa42c t .L2024
101aa438 t .L2025
101aa460 t .L2026
101aa46c t .L2027
101aa478 t .L2028
101aa478 t i596_get_stats
101aa484 t set_multicast_list
101aa55c t .L2040
101aa658 t .L2055
101aa694 t .L2069
101aa6ac t .L2043
101aa6bc t .L2070
101aa6cc t .L2071
101aa728 T autoirq_setup
101aa748 T autoirq_report
101aa788 t dead_write_lines
101aa78c t dead_read_lines
101aa794 t dead_frob_lines
101aa79c t dead_onearg
101aa7a0 t dead_initstate
101aa7a4 t dead_state
101aa7a8 t dead_noargs
101aa7ac t dead_write
101aa7b4 t dead_read
101aa7bc t attach_driver_chain
101aa884 t .L695
101aa8ac t .L720
101aa8b0 t detach_driver_chain
101aa8f8 t get_lowlevel_driver
101aa8fc T parport_register_driver
101aa92c t .L733
101aa9cc t .L741
101aaa10 t .L762
101aaa18 T parport_unregister_driver
101aaa18 t .L763
101aaaa8 t free_port
101aab74 T parport_get_port
101aab98 T parport_put_port
101aabc4 t .L798
101aabd8 T parport_enumerate
101aabd8 t .L802
101aabec t .L804
101aac04 T parport_register_port
101aac04 t .L806
101aae18 T parport_announce_port
101aae30 T parport_unregister_port
101aae8c t .L853
101aaec0 t .L856
101aaed8 T parport_register_device
101aaf28 t .L873
101aaf7c t .L874
101ab02c t .L864
101ab034 t .L862
101ab058 t .L875
101ab0f4 t .L876
101ab10c t .L877
101ab110 T parport_unregister_device
101ab13c t .L879
101ab1d0 T parport_find_number
101ab1d0 t .L886
101ab210 T parport_find_base
101ab250 T parport_claim
101ab3fc T parport_claim_or_block
101ab460 T parport_release
101ab4a0 t .L946
101ab514 t .L955
101ab5ac t .L978
101ab5d4 t .L979
101ab5d8 t parport_parse_params
101ab73c T parport_parse_irqs
101ab764 T parport_parse_dmas
101ab790 T parport_ieee1284_wakeup
101ab7b8 t .L686
101ab7d0 t .L688
101ab7d4 t timeout_waiting_on_port
101ab7fc T parport_wait_event
101ab8f0 T parport_poll_peripheral
101ab9dc T parport_wait_peripheral
101abaf4 t .L716
101abb18 t .L735
101abb20 T parport_negotiate
101abb54 T parport_ieee1284_interrupt
101abb70 T parport_write
101abb9c T parport_read
101abbc0 T parport_set_timeout
101abbe8 t .L742
101abc00 T parport_ieee1284_write_compat
101abc00 t .L744
101abd48 t .L682
101abdbc t .L716
101abee0 t .L673
101abf14 t .L705
101abf34 t .L717
101abf48 T parport_ieee1284_read_nibble
101abf48 t .L718
101abf50 T parport_ieee1284_read_byte
101abf58 T parport_ieee1284_ecp_write_data
101abf60 T parport_ieee1284_ecp_read_data
101abf68 T parport_ieee1284_ecp_write_addr
101abf70 T parport_ieee1284_epp_write_data
101ac090 T parport_ieee1284_epp_read_data
101ac1a8 T parport_ieee1284_epp_write_addr
101ac2c8 T parport_ieee1284_epp_read_addr
101ac3e0 T inc_parport_count
101ac3e4 T dec_parport_count
101ac3e8 t do_active_device
101ac520 t do_hardware_base_addr
101ac5f0 t do_hardware_irq
101ac6bc t do_hardware_dma
101ac788 t do_hardware_modes
101ac9ec T parport_proc_register
101acaf0 T parport_proc_unregister
101acb24 T parport_device_proc_register
101acc08 T parport_device_proc_unregister
101acc3c T parport_default_proc_register
101acc6c T parport_default_proc_unregister
101acca4 t clear_epp_timeout
101acd3c t parport_gsc_interrupt
101acd98 T parport_gsc_init_state
101acdb0 T parport_gsc_save_state
101acdd8 T parport_gsc_restore_state
101ace00 T parport_gsc_inc_use_count
101ace04 T parport_gsc_dec_use_count
101ace08 t parport_SPP_supported
101acf00 t parport_PS2_supported
101acffc T parport_gsc_probe_port
101ad3dc T parport_gsc_write_data
101ad404 T parport_gsc_read_data
101ad420 T parport_gsc_data_reverse
101ad468 T parport_gsc_data_forward
101ad4b0 T parport_gsc_write_control
101ad54c T parport_gsc_read_control
101ad560 T parport_gsc_frob_control
101ad638 T parport_gsc_read_status
101ad658 T parport_gsc_disable_irq
101ad6a0 T parport_gsc_enable_irq
101ad6e8 T scsi_initialize_queue
101ad72c t scsi_wait_done
101ad764 t .L888
101ad77c t .L891
101ad780 T scsi_allocate_request
101ad7fc T scsi_release_request
101ad834 T scsi_allocate_device
101adac8 T scsi_release_command
101adbb8 t .L974
101adbc8 t .L977
101adbcc T scsi_dispatch_cmd
101adc50 t .L992
101add2c t .L1008
101add44 t .L1015
101add5c t .L1016
101addd8 T scsi_wait_req
101ade74 t .L1019
101adeb0 T scsi_do_req
101adeb0 t .L1021
101adfb0 T scsi_init_cmd_from_req
101ae11c T scsi_do_cmd
101ae254 T scsi_done
101ae358 T scsi_bottom_half_handler
101ae414 t .L1062
101ae43c t .L1073
101ae44c t .L1084
101ae454 t .L1085
101ae45c t .L1086
101ae474 t .L1087
101ae480 t .L1088
101ae4a0 T scsi_retry_command
101ae518 T scsi_finish_command
101ae5e8 T scsi_release_commandblocks
101ae644 T scsi_build_commandblocks
101ae7a0 t scsi_proc_info
101ae8f0 t proc_scsi_gen_write
101ae9b4 t .L1174
101ae9e4 t .L1175
101aeb7c t .L1237
101aeca4 t .L1238
101aeca4 t scsi_register_host
101aecd8 t .L1241
101aedac t .L1261
101aee54 t .L1299
101aee88 t .L1323
101aee94 t .L1338
101aee9c t .L1339
101aef48 t .L1340
101aefc0 t .L1257
101aefd4 t .L1341
101aefec t .L1342
101af00c t .L1343
101af01c t scsi_unregister_host
101af160 t .L1446
101af194 t .L1344
101af1f0 t .L1512
101af204 t .L1513
101af23c t .L1440
101af244 t .L1444
101af260 t .L1514
101af2a8 t .L1515
101af364 t .L1421
101af378 t .L1516
101af3cc t .L1517
101af4bc t .L1518
101af4f8 t scsi_register_device_module
101af674 t scsi_unregister_device
101af6e8 t .L1575
101af754 T scsi_register_module
101af754 t .L1598
101af798 t .L1599
101af7ac T scsi_unregister_module
101af7ac t .L1612
101af7ec t .L1613
101af800 t .L1626
101af800 t scsi_dump_status
101af804 T scsi_get_host_dev
101af8ac T scsi_free_host_dev
101af8fc T __scsi_release_command
101af9d4 t .L965
101af9e4 t .L1676
101af9e8 T scsi_unregister
101afb08 T scsi_register
101afe74 T scsi_register_device
101afeb4 t ioctl_probe
101aff88 t ioctl_internal_command
101b0044 t .L891
101b0094 t .L893
101b00d8 t .L894
101b00e8 T scsi_ioctl_send_command
101b03a8 T scsi_ioctl
101b0434 t .L990
101b04c4 t .L1101
101b0548 t .L1102
101b05b0 t .L1103
101b074c t .L1104
101b07ec t .L1105
101b07f0 T kernel_scsi_ioctl
101b0830 t print_opcode
101b0854 T print_command
101b08d4 T print_status
101b08fc t print_sense_internal
101b0984 t .L853
101b0a04 t .L842
101b0b00 t .L869
101b0b1c T print_sense
101b0b1c t .L870
101b0b3c T print_req_sense
101b0b5c T print_msg
101b0b9c t .L880
101b0bf8 t .L891
101b0c04 t .L892
101b0c38 T print_Scsi_Cmnd
101b0c84 T print_hostbyte
101b0cac T print_driverbyte
101b0cd4 T scsicam_bios_param
101b0e44 T scsi_partsize
101b1048 t setsize
101b1130 T generic_proc_info
101b11a8 t .L833
101b11f4 t .L834
101b11f8 t proc_scsi_read
101b122c t .L837
101b125c t .L839
101b1260 t proc_scsi_write
101b1330 T build_proc_dir_entries
101b1418 T parseInit
101b1500 T parseOpt
101b1738 T proc_print_scsidevice
101b17e0 t .L976
101b1838 t .L975
101b1890 t .L974
101b1978 t .L977
101b1988 t .L978
101b1998 t .L979
101b199c T parseFree
101b19c8 T scsi_add_timer
101b1a44 T scsi_delete_timer
101b1a6c T scsi_times_out
101b1afc t .L886
101b1b10 t .L891
101b1b28 T scsi_block_when_processing_errors
101b1bbc t .L895
101b1be8 t .L906
101b1c34 T scsi_eh_times_out
101b1c70 t .L910
101b1c74 t .L911
101b1c88 t .L913
101b1c90 T scsi_eh_done
101b1c90 t .L914
101b1cec t .L919
101b1d04 t .L923
101b1d14 T scsi_eh_action_done
101b1d64 t .L929
101b1d7c t .L933
101b1d88 T scsi_sense_valid
101b1d9c T scsi_eh_retry_command
101b1e08 T scsi_request_sense
101b1ef8 t .L941
101b1f84 t .L945
101b1f9c t scsi_request_sense
101b205c T scsi_test_unit_ready
101b214c t .L950
101b21d8 t .L954
101b21f0 T scsi_sleep_done
101b2214 t .L958
101b222c t .L960
101b2230 T scsi_sleep
101b22d4 t .L963
101b22fc T scsi_send_eh_cmnd
101b22fc t .L964
101b23e8 t .L972
101b24b8 t .L999
101b24fc T scsi_unit_is_ready
101b2564 T scsi_eh_finish_command
101b2594 T scsi_try_to_abort_command
101b25fc T scsi_try_bus_device_reset
101b2674 T scsi_try_bus_reset
101b2744 T scsi_try_host_reset
101b2804 T scsi_decide_disposition
101b28a8 t .L1057
101b2a08 t .L1130
101b2a14 T scsi_eh_completed_normally
101b2a38 t .L1131
101b2b74 t .L1175
101b2b78 T scsi_check_sense
101b2c78 T scsi_restart_operations
101b2d10 T scsi_unjam_host
101b2da0 t .L1248
101b2e0c t .L1279
101b2e80 t .L1290
101b2ea0 t .L1308
101b2ef8 t .L1350
101b30cc t .L1364
101b3130 t .L1463
101b318c t .L1464
101b3210 t .L1334
101b3294 t .L1465
101b3324 t .L1466
101b3380 t .L1467
101b3424 t .L1468
101b3468 t .L1253
101b34a0 t .L1469
101b34b8 t .L1470
101b34c4 T scsi_error_handler
101b3584 t .L1483
101b3588 t .L1486
101b35a0 t .L1488
101b35f8 t .L1499
101b3620 t .L1503
101b3644 t .L1495
101b365c t .L1504
101b3668 t .L1505
101b3670 t .L1506
101b3678 t .L1507
101b3690 T scsi_old_times_out
101b3774 t .L876
101b37e0 t .L887
101b37e0 t check_sense
101b38e4 T scsi_old_done
101b3a1c t .L937
101b3c18 t .L1089
101b3d30 t .L1090
101b3d84 t .L1038
101b3d94 t .L1091
101b3dd4 t .L1092
101b3ec0 t .L1093
101b3f14 t scsi_abort
101b40c0 t .L1141
101b40e0 t .L1142
101b4124 t .L1129
101b412c T scsi_mark_host_reset
101b4168 t scsi_mark_bus_reset
101b41b0 t scsi_reset
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101b43c8 t .L1275
101b4418 t .L1261
101b4430 t .L1276
101b4448 t .L1277
101b446c t .L1223
101b4514 t .L1246
101b453c t .L1278
101b4550 t .L1279
101b45f4 T update_timeout
101b4634 t .L1285
101b464c t .L1287
101b4650 T scsi_mlqueue_insert
101b474c T scsi_insert_special_cmd
101b47e0 T scsi_insert_special_req
101b4870 T scsi_init_cmd_errh
101b4934 T scsi_queue_next_request
101b4ab4 t __scsi_end_request
101b4aec t .L930
101b4bfc t .L942
101b4c3c t .L948
101b4c5c T scsi_end_request
101b4c5c t .L949
101b4c7c t scsi_release_buffers
101b4ce4 t .L959
101b4d20 T scsi_io_completion
101b4d20 t .L964
101b4da0 t .L972
101b4dc4 t .L974
101b4e14 t .L965
101b4f74 t .L1020
101b5008 t .L1021
101b5018 t .L1022
101b5028 t .L1023
101b5050 t .L1024
101b5068 T scsi_get_request_dev
101b50c0 T scsi_request_fn
101b5204 t .L1060
101b53c0 t .L1096
101b5414 T scsi_block_requests
101b5424 T scsi_unblock_requests
101b5434 T scsi_report_bus_reset
101b5464 T scsi_register_blocked_host
101b5468 T scsi_deregister_blocked_host
101b546c t dma_exhausted
101b5540 T recount_segments
101b563c t scsi_back_merge_fn_
101b56ec t scsi_back_merge_fn_c
101b57a4 t scsi_back_merge_fn_dc
101b5954 t scsi_front_merge_fn_
101b5a04 t scsi_front_merge_fn_c
101b5abc t scsi_front_merge_fn_dc
101b5c98 t scsi_merge_requests_fn_
101b5d44 t scsi_merge_requests_fn_c
101b5e34 t scsi_merge_requests_fn_dc
101b6130 t scsi_init_io_v
101b624c t scsi_init_io_vd
101b6278 t .L1533
101b638c t .L1536
101b63a0 t scsi_init_io_vc
101b6510 t scsi_init_io_vdc
101b653c t .L1641
101b66d8 t .L1644
101b66ec T initialize_merge_fn
101b6808 T scsi_malloc
101b68ec T scsi_free
101b69e4 T scsi_resize_dma_pool
101b6b20 t .L871
101b6bac t .L921
101b6c24 t .L968
101b6d38 t .L969
101b6e2c T scsi_init_minimal_dma_pool
101b6f74 t print_inquiry
101b6fd0 t .L835
101b7018 t .L842
101b7068 t .L849
101b70d0 t .L857
101b7110 t .L865
101b7120 t .L866
101b7128 t .L867
101b7130 t .L868
101b7130 t get_device_flags
101b7240 T scan_scsis
101b7430 t .L990
101b760c t .L920
101b7660 t .L1005
101b767c t .L1006
101b7680 t scan_scsis_single
101b7784 t .L1066
101b7934 t .L1014
101b7c14 t .L1089
101b7c74 t .L1090
101b7c90 t ___m_alloc
101b7d84 t ___m_alloc
101b7e78 t ___m_free
101b7f2c t ___m_free
101b7fe0 t __m_calloc2
101b8048 t .L913
101b8080 t .L916
101b8080 t __m_calloc2
101b80e8 t .L913
101b8120 t .L916
101b8120 t __m_free
101b8184 t __m_free
101b81e8 t ___mp0_getp
101b8220 t ___mp0_getp
101b8258 t ___mp0_freep
101b8288 t ___mp0_freep
101b82b8 t m_calloc
101b82ec t m_calloc
101b8320 t m_free
101b8358 t m_free
101b8390 t ___dma_getp
101b8468 t ___dma_getp
101b8540 t ___dma_freep
101b85e0 t ___dma_freep
101b8680 t ___cre_dma_pool
101b8714 t ___cre_dma_pool
101b87a8 t ___del_dma_pool
101b8800 t ___del_dma_pool
101b8858 t __m_calloc_dma
101b88c4 t .L970
101b88f0 t .L976
101b8908 t __m_calloc_dma
101b8974 t .L970
101b89a0 t .L976
101b89b8 t __m_free_dma
101b89f4 t .L986
101b8a14 t .L989
101b8a14 t __m_free_dma
101b8a50 t .L986
101b8a70 t .L989
101b8a70 t __vtobus
101b8ad8 t __vtobus
101b8b40 t __unmap_scsi_data
101b8bb0 t __unmap_scsi_data
101b8c20 t __map_scsi_single_data
101b8c74 t __map_scsi_single_data
101b8cc8 t __map_scsi_sg_data
101b8d1c t __map_scsi_sg_data
101b8d70 t __sync_scsi_data
101b8de8 t __sync_scsi_data
101b8e60 t ncr_print_hex
101b8eb8 t ncr_printl_hex
101b8f08 t PRINT_TARGET
101b8f38 t PRINT_TARGET
101b8f68 t PRINT_LUN
101b8f9c t PRINT_LUN
101b8fd0 t PRINT_ADDR
101b8ff8 t PRINT_ADDR
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101b9268 t ncr_prepare_nego
101b92f0 t .L1588
101b94e8 t .L1636
101b9580 t ncr_prepare_nego
101b95d0 t .L1605
101b96d8 t .L1625
101b96f4 t ncr_queue_command
101b980c t .L1744
101b9ad8 t .L1758
101b9ae8 t .L1759
101b9c34 t ncr_queue_command
101b9d44 t .L1685
101b9f7c t .L1697
101b9f8c t .L1698
101ba0d4 t ncr_start_next_ccb
101ba0f8 t .L1761
101ba18c t .L1776
101ba1ac t ncr_start_next_ccb
101ba1f0 t .L1701
101ba27c t .L1713
101ba284 t ncr_put_start_queue
101ba330 t ncr_put_start_queue
101ba3e8 t ncr_chip_reset
101ba458 t ncr_chip_reset
101ba504 t ncr_soft_reset
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101ba55c t .L1802
101ba584 t .L1808
101ba5ac t .L1809
101ba5b0 t ncr_start_reset
101ba5d4 t ncr_start_reset
101ba5ec t .L1721
101ba608 t .L1723
101ba608 t ncr_reset_scsi_bus
101ba884 t ncr_reset_scsi_bus
101bab3c t ncr_reset_bus
101bac38 t ncr_reset_bus
101bad34 t ncr_abort_command
101bade8 t ncr_abort_command
101baef0 t ncr_complete
101bb0ec t .L1890
101bb130 t .L1912
101bb1e0 t .L1935
101bb1fc t .L1936
101bb208 t .L1937
101bb2dc t .L1938
101bb2fc t .L1886
101bb310 t .L1887
101bb388 t .L1939
101bb3c4 t .L1940
101bb3d8 t .L1941
101bb42c t ncr_complete
101bb564 t .L1795
101bb61c t .L1808
101bb684 t .L1844
101bb718 t .L1870
101bb760 t .L1871
101bb878 t .L1872
101bb898 t .L1804
101bb8ac t .L1805
101bb924 t .L1873
101bb960 t .L1874
101bb974 t .L1875
101bb98c t .L1876
101bb99c t .L1877
101bb9d8 t ncr_wakeup_done
101bba00 t .L1945
101bba58 t .L1958
101bba8c t ncr_wakeup_done
101bbb1c t .L1889
101bbb34 t .L1894
101bbb4c t ncr_wakeup
101bbba4 t ncr_wakeup
101bbbfc t ncr_init
101bbc28 t .L1969
101bbec0 t .L2018
101bbed0 t .L2021
101bbf84 t .L2034
101bc1dc t .L2088
101bc1ec t .L2089
101bc210 t .L2090
101bc248 t .L2091
101bc248 t ncr_init
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101bc5a4 t .L1931
101bc660 t .L1946
101bc688 t .L1953
101bc6a0 t .L1954
101bc6b0 t .L1955
101bc6e8 t .L1956
101bc6e8 t ncr_negotiate
101bc744 t ncr_negotiate
101bc7a0 t ncr_getsync
101bc86c t ncr_getsync
101bc90c t ncr_get_xfer_info
101bca48 t ncr_set_sync_wide_status
101bcb28 t ncr_set_sync_wide_status
101bcbc8 t ncr_setsync
101bccd8 t .L2165
101bce4c t .L2194
101bce80 t .L2195
101bcf78 t ncr_setsync
101bd188 t .L2013
101bd1e8 t .L2023
101bd25c t ncr_setwide
101bd318 t .L2205
101bd350 t .L2216
101bd3b4 t ncr_setwide
101bd478 t .L2035
101bd4b0 t .L2044
101bd50c t ncr_setsyncwide
101bd634 t .L2236
101bd7ac t .L2265
101bd7e0 t .L2266
101bd8d8 t ncr_setup_tags
101bd920 t .L2267
101bd9f4 t .L2305
101bda04 t .L2306
101bda44 t ncr_setup_tags
101bda80 t .L2045
101bdb48 t .L2069
101bdb58 t .L2070
101bdb90 t ncr_usercmd
101bdd28 t .L2316
101bde18 t .L2390
101bde28 t ncr_usercmd
101be07c t ncr_timeout
101be0ac t .L2391
101be118 t .L2401
101be134 t .L2402
101be134 t ncr_timeout
101be164 t .L2139
101be1d8 t .L2149
101be1f0 t ncr_log_hard_error
101be43c t ncr_log_hard_error
101be670 t ncr_exception
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101be978 t .L2486
101be9a4 t .L2487
101be9c0 t .L2488
101be9cc t .L2489
101be9dc t .L2490
101be9fc t .L2491
101bea10 t .L2492
101bea20 t .L2493
101bea54 t .L2494
101bea58 t ncr_exception
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101becec t .L2212
101bed28 t .L2213
101bed3c t .L2214
101bed6c t .L2215
101bedbc t .L2216
101bedcc t .L2217
101bee00 t .L2218
101bee28 t .L2219
101bee38 t ncr_recover_scsi_int
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101bef70 t .L2514
101bef70 t ncr_int_sto
101befe0 t .L2521
101beff8 t .L2522
101beffc t ncr_int_sto
101bf078 t ncr_int_udc
101bf0fc t ncr_int_sbmc
101bf184 t ncr_int_sbmc
101bf21c t ncr_int_par
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101bf3d0 t .L2577
101bf41c t .L2578
101bf440 t .L2579
101bf460 t .L2580
101bf464 t ncr_int_par
101bf514 t .L2246
101bf58c t .L2247
101bf594 t ncr_int_ma
101bf8b8 t .L2610
101bf8c0 t .L2581
101bf974 t .L2746
101bfbf8 t .L2747
101bfc54 t .L2748
101bfc64 t .L2749
101bfcd0 t ncr_int_ma
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101bfe9c t .L2248
101c0048 t .L2314
101c01ac t .L2315
101c01c8 t ncr_sir_to_redo
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101c067c t .L2888
101c07a0 t ncr_sir_to_redo
101c0900 t .L2316
101c0954 t .L2339
101c0a3c t ncr_clear_tasks
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101c0b20 t .L2903
101c0b20 t ncr_sir_task_recovery
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101c0d98 t .L2905
101c0dcc t .L3046
101c1068 t .L2994
101c1084 t .L3047
101c10bc t .L3048
101c1130 t ncr_evaluate_dp
101c12a8 t ncr_modify_dp
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101c147c t .L3152
101c1488 t ncr_compute_residual
101c1548 t ncr_show_msg
101c15f8 t ncr_show_msg
101c16a8 t ncr_print_msg
101c1700 t ncr_print_msg
101c1758 t ncr_sync_nego
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101c18b0 t .L3234
101c191c t .L3204
101c196c t .L3251
101c19a0 t .L3252
101c19f8 t .L3225
101c1a1c t .L3253
101c1a34 t .L3254
101c1a4c t ncr_wide_nego
101c1b08 t .L3260
101c1b84 t .L3255
101c1c18 t .L3286
101c1c30 t .L3287
101c1c30 t ncr_ppr_nego
101c1dd0 t .L3306
101c1e24 t .L3331
101c1ea0 t .L3288
101c1f08 t .L3353
101c1f70 t .L3354
101c1ff0 t .L3317
101c2014 t .L3355
101c2030 t .L3356
101c2044 t .L3357
101c2084 t ncr_nego_default
101c20b8 t .L3359
101c20f4 t .L3374
101c2174 t .L3375
101c2198 t .L3376
101c21ac t .L3377
101c21ac t ncr_nego_rejected
101c21d8 t ncr_int_sir
101c2330 t .L3379
101c2368 t .L3405
101c2368 t .L3499
101c2394 t .L3500
101c23a8 t .L3501
101c2464 t .L3502
101c2474 t .L3503
101c2484 t .L3504
101c2494 t .L3505
101c24d0 t .L3506
101c250c t .L3443
101c2530 t .L3507
101c2540 t .L3508
101c2580 t .L3509
101c2664 t .L3510
101c26a8 t .L3511
101c2700 t .L3512
101c2704 t ncr_int_sir
101c2850 t .L2356
101c2888 t .L2368
101c28b4 t .L2477
101c28c4 t .L2478
101c2974 t .L2389
101c2998 t .L2479
101c29ac t .L2480
101c2aac t .L2405
101c2b6c t .L2481
101c2c6c t .L2420
101c2d38 t .L2482
101c2d58 t .L2483
101c2d88 t .L2484
101c2da0 t .L2485
101c2de0 t .L2486
101c2e00 t ncr_get_ccb
101c2ff4 t ncr_get_ccb
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101c31fc t .L2513
101c31fc t ncr_free_ccb
101c336c t ncr_free_ccb
101c34e0 t ncr_alloc_ccb
101c35c4 t ncr_alloc_ccb
101c36a8 t ncr_ccb_from_dsa
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101c36d4 t ncr_init_tcb
101c3834 t ncr_alloc_lcb
101c3a50 t ncr_alloc_lcb
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101c3c0c t .L2558
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101c3e78 t ncr_setup_lcb
101c40cc t ncr_scatter_no_sglist
101c4170 t ncr_scatter_896R1
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101c4254 t .L3718
101c4258 t ncr_scatter
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101c4314 t .L3738
101c4318 t ncr_scatter
101c43f0 t ncr_selectclock
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101c44bc t .L3800
101c4500 t .L3808
101c4510 t .L3809
101c4590 t ncr_selectclock
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101c464c t .L2661
101c468c t .L2668
101c469c t .L2669
101c471c t device_queue_depth
101c4888 t device_queue_depth
101c49f0 t sym53c8xx_select_queue_depths
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101c4ae0 t .L4182
101c4ae8 T sym53c8xx_info
101c4af4 T sym53c8xx_queue_command
101c4b98 t sym53c8xx_intr
101c4c48 t sym53c8xx_timeout
101c4cb0 T sym53c8xx_reset
101c4d88 T sym53c8xx_abort
101c4e34 t insert_into_waiting_list
101c4e68 t insert_into_waiting_list
101c4e9c t retrieve_from_waiting_list
101c4edc t retrieve_from_waiting_list
101c4f1c t process_waiting_list
101c4fb0 t process_waiting_list
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101c50a4 t skip_spaces
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101c5164 t get_int_arg
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101c5238 t is_keyword
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101c58ec t ncr_user_command
101c5efc t copy_mem_info
101c5f78 t copy_mem_info
101c5ff4 t copy_info
101c6050 t copy_info
101c60ac t ncr_host_info
101c61a0 t ncr_host_info
101c628c t sym53c8xx_proc_info
101c62fc t .L4435
101c631c T lasi7xx_detect
101c631c t .L4450
101c635c t lasi_scsi_callback_700
101c63b0 t lasi_scsi_callback_710
101c6400 t ncr_dump
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101c6a10 t .L879
101c6a74 t .L909
101c6fb4 t .L910
101c6ff8 t param_setup
101c71d8 t sbcl_to_phase
101c7260 t ncr_halt
101c7520 t sim700_soft_reset
101c7944 t .L1029
101c7d2c t .L1053
101c7d30 t sim700_driver_init
101c8530 t handle_sdtr
101c86f8 t handle_rej
101c879c t datapath_residual
101c883c t .L1271
101c88f4 t .L1274
101c8930 t .L1272
101c8984 t .L1275
101c8988 t handle_idd
101c89f0 t .L1298
101c8bf8 t .L1302
101c8bfc t handle_phase_mismatch
101c8c90 t .L1463
101c8e10 t .L1457
101c8e34 t .L1456
101c8e98 t .L1318
101c8f04 t .L1441
101c8ff4 t .L1468
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101c9054 t .L1470
101c9188 t .L1461
101c91ac t .L1460
101c929c t .L1471
101c92ac t .L1472
101c9300 t .L1473
101c9318 t .L1474
101c937c t .L1313
101c93b0 t .L1475
101c93c8 t .L1476
101c93e0 t .L1477
101c93e4 t handle_script_int
101c95e0 t .L1483
101c9690 t .L1557
101c978c t do_sim700_intr_handle
101c97b0 t sim700_intr_handle
101c9ae0 t .L1599
101c9b58 t .L1602
101c9b74 t .L1603
101c9bfc t .L1609
101c9c08 t .L1635
101c9d00 t .L1708
101c9d68 t .L1582
101c9dc8 t .L1660
101c9e1c t .L1671
101c9e20 t .L1562
101c9e6c t .L1709
101c9e80 t .L1710
101c9f80 t .L1711
101c9fb8 t .L1712
101c9fe0 t .L1697
101ca064 t .L1713
101ca0d4 t .L1714
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101ca17c t .L1716
101ca19c t .L1717
101ca1b8 t .L1718
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101ca22c t .L1720
101ca26c t .L1721
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101ca794 t .L1877
101ca804 t .L1900
101ca830 t .L1901
101cab3c t process_issue_queue
101cac20 T sim700_queuecommand
101cad78 t .L1942
101cad98 t .L1949
101cadb0 T sim700_init_host
101caf9c t .L1969
101cafb8 t .L1964
101cafc4 t .L1957
101cafec t .L1955
101cb04c t .L2054
101cb064 t .L2055
101cb11c t .L1975
101cb30c t .L2004
101cb364 t .L2056
101cb3d8 t .L2017
101cb440 t .L2057
101cb47c t .L2058
101cb4ac t .L2046
101cb4b8 t .L2059
101cb514 t .L2060
101cb538 t .L2061
101cb568 t .L2062
101cb578 t .L2063
101cb5c4 t .L2064
101cb5c8 T sim700_abort
101cb5fc T sim700_dev_reset
101cb630 T sim700_bus_reset
101cb660 t full_reset
101cb914 t .L2093
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101e4aac t .L1705
101e4aac t raid1_status
101e4b84 t mark_disk_bad
101e4c6c t raid1_error
101e4cc0 t .L1724
101e4d00 t .L1738
101e4d10 t print_raid1_conf
101e4db0 t .L1739
101e4ddc t .L1748
101e4de0 t close_sync
101e4fd0 t raid1_diskop
101e50c8 t .L1855
101e54bc t .L1887
101e55dc t raid1d
101e565c t .L1889
101e56f8 t .L1942
101e5724 t .L1943
101e5890 t .L1911
101e58f0 t .L1944
101e5948 t .L1945
101e597c t .L1946
101e5980 t raid1syncd
101e59c0 t .L1951
101e59f0 t .L1954
101e5a1c t .L1957
101e5a2c t .L1958
101e5a2c t raid1_sync_request
101e5a84 t .L1961
101e5d18 t .L2017
101e5e10 t .L2043
101e5eb4 t .L2044
101e5edc t end_sync_read
101e5f04 t .L2049
101e5f34 t .L2052
101e5f38 t end_sync_write
101e5f68 t .L2054
101e5f84 t .L2057
101e6018 t .L2059
101e6050 t .L2064
101e6068 t .L2070
101e609c t .L2071
101e60a4 t .L2072
101e60c0 t .L2073
101e60c0 t __check_consistency
101e619c t .L2084
101e6260 t .L2094
101e6264 t __check_consistency
101e62b0 t .L2204
101e6420 t .L2241
101e64a4 t check_consistency
101e64c4 t check_consistency
101e64e4 t raid1_run
101e6544 t .L2165
101e6644 t .L2104
101e6648 t .L2182
101e67d8 t .L2147
101e68e8 t .L2192
101e69e4 t .L2193
101e6a0c t .L2194
101e6a80 t .L2195
101e6b0c t .L2196
101e6b20 t .L2197
101e6b24 t raid1_stop_resync
101e6b6c t raid1_restart_resync
101e6bd8 t raid1_stop
101e6c44 t raid1_exit
101e6c60 t release_stripe
101e6ca8 t .L1391
101e6d04 t .L1386
101e6d34 t .L1394
101e6d74 t .L1395
101e6d7c t .L1396
101e6d7c t remove_hash
101e6da4 t get_free_stripe
101e6e18 t shrink_buffers
101e6e8c t grow_buffers
101e6f90 t shrink_stripe_cache
101e701c t __find_stripe
101e706c t get_active_stripe
101e71a4 t .L1532
101e71a8 t .L1481
101e71e4 t .L1480
101e74c8 t .L1610
101e7534 t .L1611
101e75d0 t .L1612
101e7614 t grow_stripes
101e772c t shrink_stripes
101e77f0 t raid5_end_read_request
101e791c t .L1681
101e7920 t .L1645
101e7974 t .L1676
101e79a8 t .L1688
101e79ec t .L1689
101e7a04 t .L1690
101e7a50 t .L1691
101e7a54 t raid5_end_write_request
101e7ab8 t .L1703
101e7b0c t .L1718
101e7b10 t .L1692
101e7b5c t .L1713
101e7b90 t .L1724
101e7bd4 t .L1725
101e7bec t .L1726
101e7c08 t .L1727
101e7c20 t .L1728
101e7c24 t raid5_build_block
101e7cc8 t raid5_error
101e7f04 t raid5_compute_sector
101e7fc0 t .L1760
101e7fd8 t .L1749
101e800c t .L1767
101e8068 t .L1768
101e8070 t compute_block
101e8114 t .L1777
101e8120 t .L1771
101e8194 t .L1785
101e81a0 t .L1786
101e81a0 t compute_parity
101e83cc t .L1833
101e83e8 t .L1871
101e8430 t .L1842
101e8448 t .L1872
101e84cc t .L1792
101e8540 t .L1794
101e855c t .L1873
101e8574 t .L1874
101e8574 t add_stripe_bh
101e8608 t handle_stripe
101e88ec t .L1959
101e8a7c t .L2022
101e8b80 t .L2063
101e8bb0 t .L2055
101e8c54 t .L2144
101e8c98 t .L2145
101e8cf0 t .L2033
101e8da8 t .L2146
101e8de8 t .L2147
101e90b4 t .L2148
101e9208 t raid5_make_request
101e92ec T device_bsize
101e931c t raid5_sync_request
101e9468 t raid5d
101e9540 t raid5syncd
101e9580 t .L2190
101e95a8 t .L2193
101e95b8 t .L2186
101e95d8 t .L2198
101e95f0 t .L2195
101e9604 t .L2199
101e9610 t .L2200
101e9618 t .L2201
101e9618 t raid5_run
101e9674 t .L2330
101e97d8 t .L2255
101e989c t .L2250
101e98d8 t .L2337
101e9904 t .L2338
101e99a0 t .L2339
101e9a68 t .L2306
101e9a6c t .L2308
101e9adc t .L2340
101e9b04 t .L2341
101e9b2c t .L2342
101e9ba8 t .L2343
101e9bd4 t .L2344
101e9bfc t .L2345
101e9c7c t .L2346
101e9cbc t raid5_stop_resync
101e9d04 t raid5_restart_resync
101e9d98 t raid5_stop
101e9e00 t raid5_status
101e9f0c t print_raid5_conf
101e9fc8 t .L2367
101e9ff0 t .L2377
101e9ff4 t raid5_diskop
101ea0e8 t .L2447
101ea500 t .L2477
101ea624 t raid5_exit
101ea640 t xor_8regs_2
101ea6dc t xor_8regs_3
101ea7c8 t xor_8regs_4
101ea904 t xor_8regs_5
101eaa90 t xor_32regs_2
101eab54 t xor_32regs_3
101eac78 t xor_32regs_4
101eade4 t xor_32regs_5
101eaf90 t xor_8regs_p_2
101eb044 t xor_8regs_p_3
101eb154 t xor_8regs_p_4
101eb2c0 t xor_8regs_p_5
101eb488 t xor_32regs_p_2
101eb564 t xor_32regs_p_3
101eb6ac t xor_32regs_p_4
101eb848 t xor_32regs_p_5
101eba30 T xor_block
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101ebc24 t calibrate_xor_block
101ebd50 T add_mddev_mapping
101ebde0 T del_mddev_mapping
101ebe6c t md_make_request
101ebf40 t alloc_mddev
101ec080 T find_gendisk
101ec0b4 T find_rdev_nr
101ec0e8 T find_rdev
101ec120 T partition_name
101ec224 t calc_dev_sboffset
101ec25c t calc_dev_size
101ec2a8 t .L1452
101ec2cc t .L1454
101ec2d0 t zoned_raid_size
101ec37c T md_check_ordering
101ec3d0 t .L1473
101ec440 t .L1509
101ec460 t .L1510
101ec4d8 t .L1511
101ec4ec t .L1512
101ec4f0 t remove_descriptor
101ec56c t alloc_array_sb
101ec5a4 t .L1528
101ec5e4 t .L1529
101ec5e4 t alloc_disk_sb
101ec668 t free_disk_sb
101ec698 t .L1536
101ec6d0 t .L1538
101ec6d0 t mark_rdev_faulty
101ec6fc t .L1539
101ec71c t .L1542
101ec71c t read_disk_sb
101ec7e4 t .L1545
101ec82c t .L1551
101ec83c t .L1552
101ec840 t calc_sb_csum
101ec878 t check_disk_sb
101ec8d8 t .L1556
101ec91c t .L1562
101ec94c t .L1563
101ec95c t .L1564
101ec960 t dev_unit
101ec9ac t match_dev_unit
101eca28 t match_mddev_units
101eca8c t bind_rdev_to_array
101ecad8 t .L1585
101ecb80 t .L1589
101ecb80 t unbind_rdev_from_array
101ecbf4 t .L1590
101ecc10 t .L1594
101ecc10 t lock_rdev
101ecc6c t unlock_rdev
101eccd0 t export_rdev
101ecdac t kick_rdev_from_array
101ecdd0 t export_array
101ece3c t .L1610
101ecea4 t .L1620
101ecea8 t free_mddev
101ecf64 t .L1621
101ecf94 t .L1642
101ecf94 t print_desc
101ecff0 t print_sb
101ed12c t print_rdev
101ed198 t .L1654
101ed1b8 T md_print_devices
101ed1b8 t .L1655
101ed29c t .L1668
101ed320 t .L1680
101ed320 t sb_equal
101ed408 t uuid_equal
101ed458 t find_rdev_all
101ed490 t write_disk_sb
101ed568 t .L1706
101ed674 t .L1718
101ed6ac t set_this_disk
101ed720 t .L1726
101ed74c t .L1728
101ed74c t sync_sbs
101ed7dc T md_update_sb
101ed9ac t md_import_device
101edbe8 t analyze_sbs
101edc6c t .L1790
101edd08 t .L1794
101ede88 t .L1820
101ee070 t .L1855
101ee07c t .L1844
101ee1dc t .L1953
101ee2a8 t .L1954
101ee314 t .L1955
101ee358 t .L1956
101ee3dc t .L1957
101ee408 t .L1958
101ee40c t device_size_calculation
101ee46c t .L1960
101ee4d4 t .L1968
101ee5fc t .L2005
101ee620 t .L2006
101ee668 t do_md_run
101eea60 t restart_array
101eeb04 t do_md_stop
101eeb64 t .L2098
101eebe0 t .L2107
101eebf8 t .L2109
101eeca8 t .L2134
101eecc4 t .L2135
101eed24 t .L2136
101eed30 t .L2137
101eed50 T detect_old_array
101eed70 t autorun_array
101eee18 t .L2142
101eee50 t .L2152
101eee54 t autorun_devices
101eef50 t .L2158
101eefe8 t .L2154
101eeff4 t .L2155
101ef0a0 t .L2195
101ef0d4 t .L2196
101ef100 t .L2197
101ef104 t autostart_array
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101ef214 t .L2220
101ef2d4 t .L2221
101ef2f4 t .L2222
101ef2f8 t get_version
101ef338 t get_array_info
101ef468 t get_disk_info
101ef534 t add_new_disk
101ef6a4 t .L2248
101ef6f8 t .L2262
101ef81c t hot_remove_disk
101ef9ac t hot_add_disk
101efae8 t .L2294
101efbbc t .L2305
101efbc8 t .L2321
101efc9c t .L2322
101efcf4 t set_array_info
101efe48 t set_disk_info
101efe6c t clear_array
101efe90 t write_raid_info
101efeb4 t protect_array
101efed8 t unprotect_array
101efefc t set_disk_faulty
101eff4c t md_ioctl
101f0064 t .L2428
101f0080 t .L2351
101f00fc t .L2418
101f0118 t .L2566
101f012c t .L2584
101f01a4 t .L2585
101f047c t .L2586
101f04c4 t .L2412
101f04fc t .L2587
101f0540 t .L2588
101f0548 t .L2589
101f0580 t .L2590
101f059c t .L2591
101f05c8 t .L2346
101f05dc t .L2592
101f0604 t .L2593
101f06b4 t .L2594
101f06bc t md_open
101f072c t md_release
101f079c T md_thread
101f0824 t .L2617
101f0838 t .L2618
101f0884 t .L2624
101f0904 t .L2647
101f091c t .L2643
101f0950 t .L2648
101f0958 t .L2649
101f0960 t .L2650
101f0964 T md_wakeup_thread
101f09a0 T md_register_thread
101f0a90 t .L2658
101f0ac0 t .L2660
101f0ad0 T md_interrupt_thread
101f0b10 t .L2661
101f0b30 T md_unregister_thread
101f0b30 t .L2664
101f0bc4 t .L2668
101f0bc8 t .L2665
101f0be0 t .L2670
101f0bf4 t .L2671
101f0bf8 T md_recover_arrays
101f0c28 t .L2672
101f0c44 T md_error
101f0c44 t .L2675
101f0d2c t status_unused
101f0e24 t status_resync
101f10fc t md_status_read_proc
101f11cc t .L2761
101f134c t .L2759
101f13e0 t .L2763
101f1420 t .L2764
101f1424 T register_md_personality
101f1478 T unregister_md_personality
101f14c0 t get_spare
101f1510 t .L2772
101f15a4 t .L2789
101f15a8 T md_sync_acct
101f1794 t is_mddev_idle
101f1a08 T md_done_sync
101f1a4c T md_do_sync
101f1ac4 t .L2921
101f1bd0 t .L2941
101f1c48 t .L2995
101f1c60 t .L3008
101f1e40 t .L3009
101f1edc t .L3010
101f1f10 T md_do_recovery
101f1f10 t .L3011
101f1f48 t .L3013
101f1f64 t .L3014
101f204c t .L3028
101f20bc t .L3041
101f20e4 t .L3055
101f2144 t .L3056
101f2174 t .L3038
101f218c t .L3057
101f2240 t .L3058
101f2250 t .L3059
101f2254 T md_notify_reboot
101f2318 t md_geninit
101f2488 T _gsc_readb
101f249c T _gsc_readw
101f24b0 T _gsc_readl
101f24bc T _gsc_readq
101f2518 T _gsc_writeb
101f252c T _gsc_writew
101f2540 T _gsc_writel
101f2548 T _gsc_writeq
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101f25fc t .L699
101f2600 T gsc_claim_irq
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101f2680 t .L704
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101f2720 t dino_cfg_read16
101f27c8 t dino_cfg_read32
101f2858 t dino_cfg_write8
101f2920 t dino_cfg_write16
101f29f8 t dino_cfg_write32
101f2ab0 t dino_in8
101f2b10 t dino_in16
101f2b80 t dino_in32
101f2bdc t dino_out8
101f2c4c t dino_out16
101f2ccc t dino_out32
101f2d34 t dino_mask_irq
101f2d84 t .L772
101f2dbc t .L774
101f2dbc t dino_unmask_irq
101f2e10 t .L775
101f2e64 t .L780
101f2e64 t dino_enable_irq
101f2ea0 t dino_isr
101f2fbc T busdevice_alloc_irq
101f30b0 T busdev_barked
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101f3104 t .L694
101f3108 t busdev_disable_irq
101f3154 t busdev_enable_irq
101f319c t busdev_mask_irq
101f31a0 t busdev_unmask_irq
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101f3314 t lasi_power_off
101f3340 t asp_find_irq
101f33d4 t wax_find_irq
101f340c t wax_hil_nmi
101f342c t wax_outb
101f34ac t .L668
101f34c0 t .L669
101f34c0 t wax_outw
101f3540 t .L672
101f3554 t .L673
101f3554 t wax_outl
101f35c0 t .L676
101f35dc t .L677
101f35dc t wax_inb
101f3668 t wax_inw
101f36f4 t wax_inl
101f3780 t wax_eisa_driver_init
101f37d8 T sgl_frnd
101f3988 T dbl_frnd
101f3c8c T handle_fpe
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101f3f58 t .L157
101f3fa4 t .L158
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101f4504 t .L62
101f450c t .L63
101f4514 t .L64
101f451c t .L65
101f452c T emfpudispatch
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101f46c4 t .L122
101f46cc t .L123
101f46d4 t .L124
101f46dc t .L125
101f46ec t decode_0c
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101f4924 t .L480
101f4938 t .L481
101f497c t .L482
101f4990 t .L483
101f49a4 t .L484
101f49b8 t .L485
101f49fc t .L486
101f4a10 t .L487
101f4a24 t .L488
101f4a38 t .L489
101f4a7c t .L490
101f4a90 t .L491
101f4aa4 t .L492
101f4ab8 t .L493
101f4afc t .L494
101f4b10 t .L495
101f4b24 t .L496
101f4b38 t .L497
101f4b7c t .L498
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101f4ba4 t .L500
101f4bb8 t .L501
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101f4c10 t .L503
101f4c24 t .L504
101f4c38 t .L505
101f4d00 t .L506
101f4d14 t .L507
101f4d58 t .L508
101f4d6c t .L509
101f4db0 t .L510
101f4dc4 t .L511
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101f4e1c t .L513
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101f4e90 t .L516
101f4ed0 t .L517
101f4f5c t .L518
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101f5088 t .L520
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101f50e0 t .L522
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101f56c8 t .L842
101f56dc t .L843
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101f575c t .L847
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101f5784 t .L849
101f5890 t .L850
101f58a8 t .L851
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101f591c t .L854
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101f5968 t .L858
101f597c t .L859
101f59fc t .L860
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101f5b30 t .L863
101f5b44 t .L864
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101f5e88 t .L899
101f5ecc t decode_26
101f60a0 t decode_2e
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101f6180 t .L934
101f61e0 t .L935
101f61f8 t .L936
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101f745c T sgl_fsqrt
101f765c T dbl_fsqrt
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101f8218 T dbl_fmpyfadd
101f92e0 T dbl_fmpynfadd
101fa3a4 T sgl_fmpyfadd
101faf38 T sgl_fmpynfadd
101fbac8 T sgl_fadd
101fc154 T dbl_fsub
101fca30 T sgl_fsub
101fd140 T sgl_to_sgl_fcnvfxt
101fd1fc T sgl_to_dbl_fcnvfxt
101fd314 T dbl_to_sgl_fcnvfxt
101fd458 T dbl_to_dbl_fcnvfxt
101fd62c T sgl_to_dbl_fcnvff
101fd774 T dbl_to_sgl_fcnvff
101fdc08 T sgl_to_sgl_fcnvxf
101fdd2c T sgl_to_dbl_fcnvxf
101fdde8 T dbl_to_sgl_fcnvxf
101fdfdc T dbl_to_dbl_fcnvxf
101fe1d8 T sgl_to_sgl_fcnvfx
101fe374 T sgl_to_dbl_fcnvfx
101fe590 T dbl_to_sgl_fcnvfx
101fe850 T dbl_to_dbl_fcnvfx
101feb8c T sgl_to_sgl_fcnvuf
101fec68 T sgl_to_dbl_fcnvuf
101fed00 T dbl_to_sgl_fcnvuf
101fee88 T dbl_to_dbl_fcnvuf
101ff01c T sgl_to_sgl_fcnvfu
101ff19c T sgl_to_dbl_fcnvfu
101ff37c T dbl_to_sgl_fcnvfu
101ff5bc T dbl_to_dbl_fcnvfu
101ff8ac T sgl_to_sgl_fcnvfut
101ff970 T sgl_to_dbl_fcnvfut
101ffa7c T dbl_to_sgl_fcnvfut
101ffb88 T dbl_to_dbl_fcnvfut
101ffd40 T dbl_fdiv
1020061c T sgl_fdiv
10200ca0 T dbl_frem
102011f0 T sgl_frem
102015b0 T dbl_fcmp
102017fc T sgl_fcmp
10201994 T move_addr_to_kernel
102019e4 T move_addr_to_user
10201aa4 t sockfs_statfs
10201ac8 t sockfs_read_super
10201b9c t sockfs_delete_dentry
10201ba4 t sock_map_fd
10201db4 T sockfd_lookup
10201e44 T sock_alloc
10201ef4 t sock_no_open
10201efc T sock_release
10201f54 t .L1667
10201f6c T sock_sendmsg
10201f6c t .L1672
1020204c T sock_recvmsg
102020e4 t .L1684
10202134 t .L1695
10202140 t sock_lseek
1020214c t sock_read
10202168 t .L1697
102021d8 t .L1704
102021d8 t sock_write
102021f4 t .L1705
10202278 t .L1714
10202280 T sock_readv_writev
10202304 t .L1715
10202320 t .L1723
10202324 t sock_readv
1020237c t sock_writev
102023d4 t sock_ioctl
10202404 t sock_poll
1020243c t sock_mmap
10202474 t sock_close
1020249c t .L1750
102024bc t .L1751
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10215f90 t .L1929
10215fa4 t .L1930
10215fa4 t ip_reply_glue_bits
1021608c T ip_send_reply
102161f0 T ip_send_check
10216260 T ip_finish_output
1021636c t .L1583
10216380 t .L1950
10216380 t ip_cmsg_recv_pktinfo
102163e0 t ip_cmsg_recv_ttl
10216418 t ip_cmsg_recv_tos
10216448 t ip_cmsg_recv_opts
10216484 T ip_cmsg_recv_retopts
102164c8 t .L1521
10216504 T ip_cmsg_recv
10216504 t .L1524
102165b4 T ip_cmsg_send
102166c0 T ip_ra_control
1021682c t .L1591
10216848 t .L1609
10216850 T ip_icmp_error
102169c8 t .L1610
102169ec t .L1629
10216a08 T ip_local_error
10216ba8 t .L1630
10216bd0 t .L1651
10216bec T ip_recv_error
10216cbc t .L1657
10216cec t .L1683
10216d74 t .L1664
10216e0c t .L1684
10216e20 T ip_setsockopt
10217070 t .L1739
102170cc t .L1744
102170ec t .L1916
1021710c t .L1917
102172f0 t .L1786
10217344 t .L1918
10217408 t .L1813
10217490 t .L1919
102175e0 T ip_getsockopt
10217cd0 T tcp_mem_schedule
10217f48 T __tcp_mem_reclaim
10217fbc T tcp_rfree
10217ff8 T tcp_poll
10218190 T tcp_write_space
10218194 t tcp_write_space
102181c0 t .L1677
10218260 t .L1708
10218288 t .L1693
102182a4 t .L1709
102182c0 T tcp_ioctl
102184e4 T tcp_listen_start
10218664 t tcp_listen_stop
10218858 t .L1740
102188c8 t .L1749
102188c8 t wait_for_tcp_connect
10218a7c t .L1760
10218a94 t .L1794
10218aa4 t wait_for_tcp_memory
10218d28 T tcp_sendmsg
10218df4 t .L1967
10218f24 t .L1870
10219008 t .L2036
10219158 t .L1985
10219178 t .L2037
102192a8 t .L2038
102193dc t .L1919
102194a0 t .L2039
10219634 t tcp_recv_urg
102196b0 t .L2047
102196d4 t .L2060
1021971c t cleanup_rbuf
10219748 t .L2063
10219794 t .L2084
1021988c t tcp_data_wait
10219a10 t tcp_prequeue_process
10219ae0 T tcp_recvmsg
10219ebc t .L2149
10219f34 t .L2192
10219f54 t .L2299
1021a100 t .L2300
1021a1b4 t tcp_close_state
1021a1ec t .L2304
1021a278 t .L2319
1021a2ac T tcp_shutdown
1021a2f4 T tcp_destroy_sock
1021a32c t .L2350
1021a358 t .L2352
1021a3ac t .L2355
1021a3f8 t .L2389
1021a420 t .L2363
1021a46c t .L2390
1021a52c t .L2378
1021a54c t .L2391
1021a564 t .L2392
1021a574 T tcp_close
1021a574 t .L2393
1021a5f8 t .L2420
1021a65c t .L2577
1021a6b4 t .L2430
1021a6d0 t .L2444
1021a7f8 t .L2419
1021a89c t .L2492
1021a944 t .L2532
1021a99c t .L2548
1021a9cc t .L2551
1021aa00 t .L2578
1021aa08 t .L2579
1021aa3c t .L2580
1021aa98 t .L2581
1021aad0 t .L2582
1021ab08 t .L2496
1021ab70 t .L2583
1021abe4 t .L2584
1021ac10 t .L2585
1021ac68 t .L2405
1021ac8c t .L2586
1021acc0 T tcp_disconnect
1021acc0 t .L2587
1021ad0c t .L2593
1021ad58 t .L2608
1021ad64 t .L2617
1021adb0 t .L2661
1021add8 t .L2625
1021ae44 t .L2662
1021ae60 t .L2631
1021aeac t .L2663
1021af8c t .L2642
1021afc8 t .L2664
1021b018 t .L2665
1021b04c t .L2666
1021b04c t wait_for_connect
1021b1f0 T tcp_accept
1021b324 t .L2721
1021b38c t .L2750
1021b3d0 T tcp_setsockopt
1021b518 t .L2781
1021b8b8 t .L2932
1021ba3c t .L2933
1021bb40 T tcp_getsockopt
1021bd14 t .L3084
1021bd24 t .L3085
1021bd34 t .L3086
1021bd44 t .L3087
1021bd88 t .L3064
1021c064 t tcp_incr_quickack
1021c098 T tcp_enter_quickack_mode
1021c0c0 t tcp_fixup_sndbuf
1021c0ec t __tcp_grow_window
1021c188 t tcp_fixup_rcvbuf
1021c1e8 t tcp_init_buffer_space
1021c20c t .L1578
1021c2e8 t .L1597
1021c2f8 t tcp_clamp_window
1021c408 t tcp_event_data_recv
1021c498 t .L1639
1021c54c t .L1659
1021c58c t .L1670
1021c5d8 t .L1671
1021c5e4 t .L1672
1021c630 T tcp_update_metrics
1021c800 T tcp_init_cwnd
1021c85c t tcp_init_metrics
1021c9ac t tcp_update_reordering
1021ca38 t tcp_sacktag_write_queue
1021cc6c t .L1855
1021cc78 t .L1856
1021cc9c t .L1858
1021ccf0 t .L1885
1021cd14 t .L1886
1021cd24 t .L1887
1021d008 T tcp_clear_retrans
1021d028 T tcp_enter_loss
1021d1e0 t tcp_check_sack_reneging
1021d300 t tcp_time_to_recover
1021d4c4 t tcp_check_reno_reordering
1021d510 t tcp_add_reno_sack
1021d54c t tcp_remove_reno_sacks
1021d5cc t tcp_mark_head_lost
1021d6b4 t tcp_update_scoreboard
1021d6e8 t .L1999
1021d700 t .L2000
1021d700 t tcp_cwnd_down
1021d770 t tcp_undo_cwr
1021d800 t tcp_try_undo_recovery
1021d900 t tcp_try_undo_dsack
1021d954 t tcp_try_undo_partial
1021da30 t tcp_try_undo_loss
1021db14 t tcp_try_to_open
1021dbf8 t .L2112
1021dc2c t .L2116
1021dc3c t tcp_fastretrans_alert
1021dca8 t .L2117
1021dd64 t .L2169
1021dddc t .L2145
1021de00 t .L2212
1021de5c t .L2213
1021de68 t .L2214
1021df60 t .L2215
1021df98 t .L2150
1021dfc4 t .L2216
1021dfec t .L2217
1021e11c t tcp_ack_saw_tstamp
1021e264 t tcp_ack_no_tstamp
1021e3a0 t tcp_clean_rtx_queue
1021e3e0 t .L2288
1021e438 t .L2314
1021e4d4 t .L2322
1021e4e0 t .L2323
1021e4ec t .L2324
1021e590 t .L2339
1021e5a0 t .L2340
1021e5b0 t .L2341
1021e5f0 t .L2342
1021e6f4 t .L2343
1021e724 t tcp_ack_probe
1021e814 t tcp_ack_update_window
1021e998 t tcp_ack
1021e9e0 t .L2398
1021ea48 t .L2447
1021eca4 T tcp_parse_options
1021ef0c t tcp_disordered_ack
1021efb4 t __tcp_sequence
1021eff8 t tcp_reset
1021f058 t .L2539
1021f0e8 t .L2556
1021f110 t tcp_fin
1021f1d8 t .L2558
1021f1dc t .L2600
1021f228 t .L2636
1021f27c t .L2610
1021f2d8 t .L2637
1021f300 t .L2638
1021f398 t .L2639
1021f3ac t .L2640
1021f3ac t tcp_send_dupack
1021f4a0 t tcp_sack_maybe_coalesce
1021f578 t tcp_sack_new_ofo_skb
1021f628 t .L2712
1021f678 t .L2748
1021f6a8 t tcp_sack_remove
1021f7ac t tcp_ofo_queue
1021f7d4 t .L2775
1021f8e8 t .L2815
1021f938 t .L2816
1021f9ec t tcp_data_queue
1021fbe4 t .L2817
1021fea0 t .L2961
10220238 t tcp_collapse_queue
10220508 t tcp_prune_queue
102205d4 t .L3005
10220620 t .L3023
102206d4 t tcp_data
102207b0 t .L3027
1022080c t .L3052
1022081c T tcp_cwnd_application_limited
10220898 t tcp_new_space
10220934 t .L3080
10220974 t .L3087
102209e8 t __tcp_data_snd_check
10220afc t tcp_check_urg
10220b84 t .L3136
10220be0 t .L3145
10220be0 t tcp_copy_to_iovec
10220c34 t .L3154
10220cc4 t .L3162
10220cc8 t __tcp_checksum_complete_user
10220d48 T tcp_rcv_established
10220de4 t .L3187
10220dec t .L3287
10220ee8 t .L3299
1022101c t .L3300
10221038 t .L3301
102210ec t .L3302
10221134 t .L3303
10221204 t .L3304
10221378 t .L3210
102213a8 t .L3305
102213fc t .L3306
102214e0 t tcp_rcv_synsent_state_process
102215b0 t .L3314
10221738 t .L3354
102217fc t .L3410
1022195c t .L3411
102219b4 T tcp_rcv_state_process
10221ad0 t .L3415
10221c70 t .L3466
10221cec t .L3422
10221e7c t .L3554
10221ea8 t .L3629
10221f00 t .L3630
10221fa8 t .L3502
10222044 t .L3631
10222088 t .L3632
102220a4 t .L3633
10222134 t .L3526
1022216c t .L3634
102221b4 t .L3635
102221d4 t .L3636
10222234 t .L3637
1022227c t .L3638
10222318 t tcp_advertise_mss
10222340 t tcp_cwnd_restart
102223f0 T tcp_transmit_skb
10222668 t .L1602
10222798 t .L1630
102228e8 T tcp_send_skb
10222b38 t tcp_fragment
10222db0 T tcp_sync_mss
10222e18 T tcp_write_xmit
10222f40 t .L1734
10222fa4 t .L1746
10223128 T __tcp_select_window
10223224 t tcp_retrans_try_collapse
1022339c t .L1796
102234c4 t .L1799
102234c8 T tcp_simple_retransmit
10223630 T tcp_retransmit_skb
10223704 t .L1836
1022377c t .L1863
10223838 t .L1866
1022389c T tcp_xmit_retransmit_queue
1022389c t .L1867
10223c8c T tcp_send_fin
10223d2c t .L1966
10223e54 t .L1967
10223f84 t .L2013
102240bc t .L2014
102240c0 T tcp_send_active_reset
10224188 T tcp_send_synack
10224300 T tcp_make_synack
10224730 T tcp_connect
102249dc t .L2177
10224a1c t .L2194
10224a48 t .L2209
10224a7c t .L2210
10224c70 T tcp_send_delayed_ack
10224d6c T tcp_send_ack
10224e70 t tcp_xmit_probe_skb
10224f04 T tcp_write_wakeup
10224ff4 t .L2246
10225138 T tcp_send_probe0
10225138 t .L2272
10225278 T tcp_init_xmit_timers
102252dc T tcp_clear_xmit_timers
102253b4 t tcp_write_err
1022540c t .L1529
102254b0 t .L1543
102254b0 t tcp_out_of_resources
102255b0 t .L1557
10225660 t .L1574
1022567c t tcp_orphan_retries
102256c4 t tcp_write_timeout
1022580c t tcp_delack_timer
10225864 t .L1630
10225884 t .L1632
102258a0 t .L1648
10225930 t .L1649
10225a34 t tcp_probe_timer
10225a5c t .L1650
10225ae8 t .L1663
10225af0 t .L1664
10225b04 t tcp_retransmit_timer
10225b38 t .L1668
10225dbc t .L1715
10225dbc t tcp_write_timer
10225df4 t .L1734
10225e14 t .L1736
10225e2c t .L1746
10225e7c t .L1744
10225e98 t .L1747
10225ed0 t .L1748
10225ed8 t .L1749
10225edc t tcp_synack_timer
102260f4 T tcp_delete_keepalive_timer
10226144 T tcp_reset_keepalive_timer
1022619c T tcp_set_keepalive
102261b8 t .L1795
102261e8 t .L1808
102261fc t .L1809
102261fc t tcp_keepalive_timer
10226228 t .L1859
1022624c t .L1861
10226268 t .L1882
102262a8 t .L1829
10226304 t .L1883
10226330 t .L1884
102263f4 t .L1885
10226428 t .L1849
10226460 t .L1886
102264ac t .L1887
102264c0 t .L1888
102264c4 T tcp_bucket_create
1022652c t tcp_v4_get_port
102267ac T tcp_put_port
10226800 t .L1625
10226848 T tcp_listen_wlock
10226848 t .L1629
1022693c t tcp_v4_hash
102269e0 t .L1668
10226a1c t .L1672
10226a54 t .L1676
10226a70 t .L1677
10226a74 T tcp_unhash
10226aa4 t .L1681
10226b00 t .L1689
10226b18 t .L1692
10226b28 t .L1693
10226b2c t __tcp_v4_lookup_listener
10226ba0 t tcp_v4_check_established
10226d38 t .L1815
10226d68 t .L1833
10226e2c T tcp_v4_hash_connecting
10226f0c t .L1843
10226f48 t .L1849
10226f74 t .L1858
10226f8c t .L1859
10226f90 T tcp_v4_connect
10227084 t .L1866
102272e8 t .L1899
102272ec t tcp_v4_search_req
102273a4 t tcp_v4_synq_add
10227424 t .L1918
10227444 T tcp_v4_err
10227444 t .L1920
102274b4 t .L1931
1022765c t .L2029
1022768c t .L2083
1022783c t .L2007
1022786c t .L2084
10227888 t .L2085
1022790c t .L2014
10227944 t .L2086
1022798c t .L2087
10227a54 t .L2088
10227aac t .L2089
10227bb4 T tcp_v4_send_check
10227c34 t tcp_v4_send_reset
10227da0 t tcp_v4_send_ack
10227f0c t tcp_v4_timewait_ack
10227f64 t .L2107
10227f80 t .L2109
10227f80 t tcp_v4_or_send_ack
10227fb8 t tcp_v4_route_req
102280d4 t tcp_v4_send_synack
102281e8 t tcp_v4_or_free
10228210 T tcp_v4_conn_request
1022827c t .L2145
10228488 t .L2203
10228654 T tcp_v4_syn_recv_sock
102287b8 t .L2225
102287f4 t .L2229
10228858 t .L2240
10228874 t .L2241
102288e4 t tcp_v4_hnd_req
10228a2c t .L2260
10228a44 t .L2273
10228ac4 t tcp_v4_checksum_init
10228bfc T tcp_v4_do_rcv
10228c88 t .L2312
10228cb8 t .L2321
10228cd4 t .L2330
10228d08 t .L2331
10228d34 t .L2332
10228d40 t .L2325
10228d54 T tcp_v4_rcv
10228d84 t .L2335
10228dac t .L2396
10228de0 t .L2462
10228fa4 t .L2463
102290b0 t .L2417
102290c8 t .L2464
102290d8 t .L2465
10229170 t .L2466
102291b4 t .L2385
102291c8 t .L2467
10229234 t .L2375
102292e0 t .L2468
102293f8 t __tcp_v4_rehash
10229434 t tcp_v4_reselect_saddr
10229610 T tcp_v4_rebuild_header
10229784 t v4_addr2sockaddr
102297a0 T tcp_v4_remember_stamp
102298d4 T tcp_v4_tw_remember_stamp
102299c0 t tcp_v4_init_sock
10229aa8 t tcp_v4_destroy_sock
10229ac8 t .L2530
10229b34 t .L2562
10229b50 t .L2536
10229b9c t .L2563
10229bc4 t .L2544
10229c10 t .L2564
10229c80 t get_openreq
10229d20 t get_tcp_sock
10229ebc t get_timewait_sock
10229f50 T tcp_get_info
1022a148 t .L2639
1022a260 t .L2608
1022a2e8 t .L2685
1022a35c t .L2686
1022a360 T tcp_v4_lookup_listener
1022a400 T __tcp_put_port
1022a43c t .L1620
1022a474 T tcp_inherit_port
1022a474 t .L2693
1022a4c4 T tcp_v4_lookup
1022a6ac T tcp_timewait_kill
1022a70c t .L1529
1022a730 t .L1519
1022a74c t .L1534
1022a778 T tcp_timewait_state_process
1022a778 t .L1535
1022a934 t .L1613
1022a9bc t .L1563
1022a9d4 t .L1614
1022aa34 t .L1566
1022aa70 t .L1556
1022aa70 t .L1615
1022aa94 t .L1559
1022aaac t .L1616
1022aaf8 t __tcp_tw_hashdance
1022aba8 t .L1624
1022abf4 T tcp_time_wait
1022abf4 t .L1628
1022ad70 t .L1639
1022ada4 t .L1642
1022ae48 t .L1656
1022ae7c t .L1657
1022ae7c t tcp_twkill
1022af24 t .L1666
1022afb8 T tcp_tw_deschedule
1022afb8 t .L1673
1022b00c t .L1678
1022b02c t .L1680
1022b040 t .L1683
1022b04c T tcp_tw_schedule
1022b04c t .L1684
1022b148 t .L1700
1022b17c t .L1704
1022b1d4 t .L1696
1022b210 t .L1705
1022b238 t tcp_twcal_tick
1022b2ec t .L1708
1022b304 t .L1724
1022b364 t .L1734
1022b374 t .L1735
1022b3d4 t .L1718
1022b3f4 T tcp_create_openreq_child
1022b3f4 t .L1736
1022b7dc T tcp_check_req
1022b8e0 t .L1773
1022b9e4 t .L1790
1022ba14 t .L1809
1022ba30 t .L1810
1022bac0 t .L1784
1022bb18 t .L1811
1022bb98 T tcp_child_process
1022bc00 t .L1821
1022bc24 t .L1826
1022bc6c t raw_v4_hash
1022bcf0 t raw_v4_unhash
1022bd68 T __raw_v4_lookup
1022bdbc T raw_v4_input
1022bef0 T raw_err
1022c03c t raw_rcv_skb
1022c168 t .L1210
1022c17c t .L1220
1022c194 T raw_rcv
1022c1d8 t raw_getfrag
1022c1fc t raw_getrawfrag
1022c278 t .L1228
1022c300 t .L1236
1022c30c t raw_sendmsg
1022c3c0 t .L1243
1022c630 t .L1289
1022c644 t raw_close
1022c670 t raw_bind
1022c738 T raw_recvmsg
1022c778 t .L1299
1022c7b4 t .L1316
1022c800 t .L1306
1022c878 t .L1317
1022c894 t raw_init
1022c8b0 t raw_seticmpfilter
1022c8e4 t raw_geticmpfilter
1022c97c t raw_setsockopt
1022c9ac t .L1371
1022c9dc t .L1379
1022c9dc t raw_getsockopt
1022ca0c t .L1380
1022ca3c t .L1388
1022ca3c t raw_ioctl
1022cae4 t get_raw_sock
1022cb84 T raw_get_info
1022cccc t udp_v4_get_port
1022cf20 t udp_v4_hash
1022cf4c t udp_v4_unhash
1022cfc8 T udp_v4_lookup_longway
1022d07c T udp_err
1022d0d8 t .L1231
1022d214 t .L1271
1022d284 t udp_check
1022d2b8 t udp_getfrag
1022d3d0 t udp_getfrag_nosum
1022d40c t .L1287
1022d444 t .L1290
1022d448 T udp_sendmsg
1022d8bc T udp_ioctl
1022d968 T udp_recvmsg
1022dab8 t .L1443
1022dad4 t .L1461
1022dbd8 T udp_connect
1022dcb4 t .L1467
1022ddf8 t .L1484
1022ddfc T udp_disconnect
1022de84 t udp_close
1022de9c t udp_queue_rcv_skb
1022dfc4 t .L1502
1022dfd8 t .L1506
1022dff0 t udp_v4_mcast_deliver
1022e138 t .L1536
1022e19c t .L1544
1022e1a0 t udp_checksum_init
1022e230 T udp_rcv
1022e2c8 t .L1588
1022e304 t .L1562
1022e308 t .L1555
1022e330 t .L1593
1022e390 t .L1594
1022e414 t .L1595
1022e4a8 t .L1596
1022e4e0 t get_udp_sock
1022e584 T udp_get_info
1022e6cc T udp_v4_lookup
1022e718 T arp_mc_map
1022e7cc t arp_hash
1022e7f8 t arp_constructor
1022e87c t .L1541
1022e8b4 t .L1549
1022e93c t .L1566
1022e95c t .L1567
1022e988 t .L1568
1022e988 t arp_error_report
1022e9ec t .L1574
1022ea00 t .L1576
1022ea00 t arp_solicit
1022eaf0 t .L1582
1022eb1c t .L1596
1022eb28 t arp_set_predefined
1022eba8 T arp_find
1022ecc8 t .L1630
1022ecdc t .L1648
1022ecf4 t .L1623
1022ed2c t .L1649
1022ed3c t .L1650
1022edc8 t .L1612
1022eddc T arp_bind_neighbour
1022eddc t .L1651
1022eea4 T arp_send
1022eeec t .L1663
1022f070 t .L1676
1022f0a4 t .L1684
1022f0b8 t .L1685
1022f0f0 t .L1686
1022f0f0 t parp_redo
1022f114 T arp_rcv
1022f184 t .L1693
1022f1ac t .L1748
1022f1b4 t .L1771
1022f1d4 t .L1703
1022f210 t .L1781
1022f21c t .L1782
1022f288 t .L1701
1022f3ec t .L1783
1022f478 t .L1726
1022f4a4 t .L1784
1022f4d4 t .L1785
1022f4dc t .L1786
1022f5ac t .L1787
1022f5f0 t .L1788
1022f630 T arp_req_set
1022f630 t .L1789
1022f7ec t .L1811
1022f7fc t .L1826
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1026f218 R timer_bug_msg
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10273810 r .LC8
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10273828 r .LC10
1027384c r .LC14
10273850 r .LC19
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1027395c A _etext
10274000 D boot_args
10274000 D data_start
10274010 D $global$
10274014 D root_mountflags
10274018 d argv_init
10274040 d envp_init
10274068 D loops_per_jiffy
1027406c d argv___0
10274074 D child_reaper
10274078 D system_utsname
10274200 D linux_banner
10274204 d pdc_cons
10274230 D hlt_counter
10274234 d sysrom_resource
10274250 d sysram_resource
1027426c d data_resource
10274288 d code_resource
102742a4 d pdcdata_resource
102742c0 d mem_limit
102742c4 d space_id
102752c4 d free_space_ids
102752c8 d dirty_space_ids
102752cc d sid_lock
10276000 d cpu_drivers_for
10276048 d fallback_cpu_hpa
10276054 D kstack_depth_to_print
10276058 D cpu_lpmc
1027605c d irq_lock
10276060 d cpu_irq_actions
10276360 D cpu_irq_region
10276384 D irq_region
102763c4 d pdc_lock
102763c8 d hw_type_name
10276408 d hp_hardware_list
1027b388 d hp_cpu_type_mask_list
1027b5a0 D cpu_name_version
1027b5f0 D pdc_type
1027b5f4 d pa_drivers
1027b5f8 d proc_gsc_root
1027b5fc d pcxl_used_bytes
1027b600 d pcxl_used_pages
1027b604 D pcxl_dma_ops
1027b628 D pcx_dma_ops
1027c000 d hpmc_stack
10280000 d hpmc_iodc_buf
10288000 d hpmc_raddr
10288080 D hpmc_pim_data
10289000 D pci_post_reset_delay
10289004 D hba_list
10289008 D hba_count
1028900c D pcibios_fixups
10289018 d def_kbd_ops
10289038 D kbd_ops
1028903c d lba_drivers_for
10289084 d lba_cfg_ops
1028909c D lba_bios_ops
102890a4 d lba_astro_port_ops
102890bc d iosapic_irq_ops
102890cc d sba_drivers_for
10289138 d sba_mem_ratio
1028913c d sba_ops
10289160 d astro_rev___0
1028916c d ike_rev___1
10289178 d ccio_drivers_for
102891e4 d ccio_mem_ratio
102891e8 d hint_lookup
102891f8 d ccio_ops
1028921c d sio_dev
10289234 d superio_irq_ops
10289244 d expected_device
10289280 D securebits
10289284 D init_tasks
102892c0 D runqueue_lock
10289300 D tasklist_lock
10289304 d runqueue_head
10289340 d aligned_data
10289380 d stat_nam___0
102893c0 D dma_spin_lock
10289400 D lastpid_lock
10289404 d next_safe___0
10289440 D mmlist_lock
10289480 d ident_map
10289500 D default_exec_domain
1028951c d exec_domains
10289520 d exec_domains_lock
10289524 D log_wait
10289530 D console_loglevel
10289534 D default_message_loglevel
10289538 D minimum_console_loglevel
1028953c D default_console_loglevel
10289540 D console_lock
10289544 d preferred_console
10289548 d msg_level___0
1028954c d ime_list
10289554 d ime_lock
10289558 D do_get_fast_time
1028955c d firsttime___0
10289560 D pps_jitter
10289564 D pps_stabil
10289568 D pps_valid
1028956c D pps_shift
10289570 d softirq_mask_lock
10289574 D global_bh_lock
10289578 D ioport_resource
10289594 D iomem_resource
102895b0 d resource_lock
102895b4 d reserved___0
102895b8 d maxolduid
102895bc d root_table_header
102895c8 D proc_sys_file_operations
10289608 d proc_sys_inode_operations
10289648 d root_table
102897a8 d kern_table
10289c4c d vm_table
10289dd8 d proc_table
10289e04 d fs_table
1028a098 d debug_table
1028a0c4 d dev_table
1028a0f0 D cap_bset
1028a0f4 D task_capability_lock
1028a0f8 D tick
1028a0fc D tickadj
1028a100 D tq_timer
1028a108 D tq_immediate
1028a110 D time_state
1028a114 D time_status
1028a118 D time_constant
1028a11c D time_tolerance
1028a120 D time_precision
1028a124 D time_maxerror
1028a128 D time_esterror
1028a12c D time_freq
1028a130 D timerlist_lock
1028a134 D tqueue_lock
1028a138 d count___0
1028a13c D xtime_lock
1028a140 d uidhash_lock
1028a144 D root_user
1028a15c D max_queued_signals
1028a160 D overflowuid
1028a164 D overflowgid
1028a168 D fs_overflowuid
1028a16c D fs_overflowgid
1028a170 D C_A_D
1028a174 D notifier_lock
1028a178 D uts_sem
1028a18c D hotplug_path
1028a28c d dev_probe_sem
1028a2a0 d tq_context
1028a2a8 d context_task_wq
1028a2b4 d context_task_done
1028a2c0 D pgt_cache_water
1028a2c8 D protection_map
1028a308 D page_cache_size
1028a30c D pagecache_lock
1028a310 D pagemap_lru_lock
1028a314 d file_shared_mmap
1028a320 d file_private_mmap
1028a32c D vmlist_lock
1028a330 d slab_break_gfp_order
1028a334 d cache_sizes
1028a3dc d cache_cache
1028a440 d clock_searchp
1028a444 D freepages
1028a450 D nr_async_pages
1028a454 D buffer_mem
1028a460 D page_cache
1028a46c D pager_daemon
1028a478 D kswapd_wait
1028a484 D kswapd_done
1028a490 d recalc___0
1028a494 D kreclaimd_wait
1028a4a0 d zone_names
1028a4ac d zone_balance_ratio
1028a4b8 d zone_balance_min
1028a4c4 d zone_balance_max
1028a4d0 d swap_aops
1028a4e8 D swapper_space
1028a518 D swaplock
1028a51c D swap_list
1028a524 d least_priority___0
1028a528 d overflow___1
1028a52c D numnodes
1028a530 D contig_page_data
1028bb78 D shmem_inodes
1028bb80 d shmem_ilock
1028bb84 d shmem_aops
1028bb9c d shmem_file_operations
1028bbdc d shmem_inode_operations
1028bc1c d shmem_dir_operations
1028bc5c d shmem_dir_inode_operations
1028bc9c d shmem_ops
1028bcc4 d shmem_private_vm_ops
1028bcd0 d shmem_shared_vm_ops
1028bcdc d shmem_fs_type
1028bcf8 D generic_ro_fops
1028bd38 d chrdevs_lock
1028bd3c d def_chr_fops
1028bd7c d bad_sock_fops
1028bdbc D files_stat
1028bdc8 d anon_list
1028bdd0 d free_list
1028bdd8 D files_lock
1028bddc d old_max___0
1028bde0 d buffersize_index
1028be24 d hash_table_lock
1028be28 d lru_list_lock
1028be2c d unused_list_lock
1028be30 d buffer_wait
1028be3c D buffermem_pages
1028be40 D bdf_prm
1028be64 D bdflush_min
1028be88 D bdflush_max
1028beac d page_uptodate_lock___0
1028beb0 D bdflush_tsk
1028beb4 d mount_sem
1028bec8 D max_super_blocks
1028becc D super_blocks
1028bed4 d file_systems_lock
1028bed8 d vfsmntlist
1028bee0 d need_escaping
1028bee4 d fs_info
1028bf24 d nfs_info
1028bf90 d bdev_lock
1028bf94 D def_blk_fops
1028bfd4 d binfmt_lock
1028bfd8 D read_fifo_fops
1028c018 D write_fifo_fops
1028c058 D rdwr_fifo_fops
1028c098 D read_pipe_fops
1028c0d8 D write_pipe_fops
1028c118 D rdwr_pipe_fops
1028c158 d pipefs_dentry_operations
1028c170 d pipefs_ops
1028c198 d .LC8
1028c1a4 d pipe_fs_type
1028c1bc d arbitration_lock
1028c1c0 D page_symlink_inode_operations
1028c200 d band_table
1028c218 d fasync_lock
1028c21c D def_fifo_fops
1028c25c D leases_enable
1028c260 D lease_break_time
1028c264 D file_lock_list
1028c26c d blocked_list
1028c274 D dcache_lock
1028c278 d dentry_unused
1028c280 D dentry_stat
1028c298 d .LC6
1028c2a4 d inode_in_use
1028c2ac d inode_unused
1028c2b4 d anon_hash_chain
1028c2bc D inode_lock
1028c2c0 d counter___4
1028c2c4 d bad_file_ops
1028c304 D bad_inode_ops
1028c344 D dir_notify_enable
1028c348 d dn_lock
1028c34c d som_format
1028c364 D script_format
1028c37c d elf_format
1028c394 d proc_sops
1028c3bc d proc_root_operations
1028c3fc d proc_root_inode_operations
1028c43c D proc_root
1028c488 d proc_maps_operations
1028c4c8 d proc_info_file_operations
1028c508 d proc_mem_operations
1028c548 d proc_mem_inode_operations
1028c588 d proc_pid_link_inode_operations
1028c5c8 d base_stuff
1028c688 d pid_fd_dentry_operations
1028c6a0 d pid_dentry_operations
1028c6b8 d pid_base_dentry_operations
1028c6d0 d proc_fd_operations
1028c710 d proc_fd_inode_operations
1028c750 d proc_base_operations
1028c790 d proc_base_inode_operations
1028c7d0 d proc_self_inode_operations
1028c810 d proc_file_operations
1028c850 d proc_link_inode_operations
1028c890 d proc_dentry_operations
1028c8a8 d proc_dir_operations
1028c8e8 d proc_dir_inode_operations
1028c928 d task_state_array
1028c940 D proc_kmsg_operations
1028c980 d proc_profile_operations
1028c9c0 d simple_ones___1
1028ca58 D proc_kcore_operations
1028ca98 d proc_fs_type
1028cab0 D warn_no_part
1028cab4 d check_part
1028cabc d first_time___0
1028cac0 d nibblemap
1028cb00 d ext2_filetype_table
1028cb08 D ext2_dir_operations
1028cb48 d ext2_max_sizes
1028cbb8 D ext2_file_operations
1028cbf8 D ext2_file_inode_operations
1028cc38 D ext2_aops
1028cc50 d ext2_type_by_mode
1028cc60 D ext2_dir_inode_operations
1028cca0 d ext2_sops
1028ccc8 d ext2_fs_type
1028cce0 D ext2_fast_symlink_inode_operations
1028cd20 d isofs_sops
1028cd48 d isofs_dentry_ops
1028cd78 d isofs_aops
1028cd90 d iso9660_fs_type
1028cda8 D isofs_dir_operations
1028cde8 D isofs_dir_inode_operations
1028ce28 d .LC0
1028ce58 D isofs_symlink_aops
1028ce70 d nfs_sops
1028ce98 D nfs_rpcstat
1028cec0 d nfs_version
1028cecc D nfs_program
1028cee0 d nfs_fs_type
1028cef8 D nfs_file_operations
1028cf38 D nfs_file_inode_operations
1028cf78 D nfs_file_aops
1028cf90 D nfs_wreq_lock
1028cf94 d nfs_nr_requests
1028cf98 D nfs_dir_operations
1028cfd8 D nfs_dir_inode_operations
1028d018 D nfs_dentry_operations
1028d030 D nfs_symlink_inode_operations
1028d070 D nfs_v2_clientops
1028d0cc d nfs_errtbl
1028d1bc d nfs_procedures
1028d324 D nfs_version2
1028d330 d flushd_queue
1028d338 D nfs_flushd_lock
1028d33c d nfs_delete_queue
1028d344 d mnt_procedures
1028d36c d mnt3_procedures
1028d394 d mnt_version1
1028d3a0 d mnt_version3
1028d3ac d mnt_version
1028d3bc D mnt_program
1028d3d0 d nlm_cookie
1028d3d4 d nlm_host_sema
1028d3e8 d nlmsvc_sema
1028d3fc d lockd_start
1028d410 d lockd_exit
1028d41c D nlm_timeout
1028d420 d warned___1
1028d424 d warned___2
1028d428 d nlmsvc_version1
1028d438 d nlmsvc_version3
1028d448 d nlmsvc_version
1028d458 D nlmsvc_program
1028d474 D nlmsvc_procedures
1028d794 d nlm_file_sema
1028d7a8 d nsm_procedures
1028d834 d nsm_version1
1028d840 d nsm_version
1028d848 D nsm_program
1028d85c d nlm_procedures
1028da3c d nlm_version1
1028da48 d nlm_version3
1028da54 d nlm_versions
1028da64 D nlm_program
1028da78 D msg_ctlmax
1028da7c D msg_ctlmnb
1028da80 D msg_ctlmni
1028da84 d msg_bytes
1028da88 d msg_hdrs
1028da8c D sem_ctls
1028da9c D shm_ctlmax
1028daa0 D shm_ctlall
1028daa4 D shm_ctlmni
1028daa8 d shm_file_operations
1028dae8 d shm_vm_ops
1028e000 d init_mmap
1028e040 d init_fs
1028e064 d init_files
1028e204 d init_signals
1028e60c D init_mm
1028f000 D swapper_pg_dir
10290000 D pg0
10292000 D tq_disk
10292008 D io_request_lock
1029200c d .LC15
10292034 D rd_size
10292038 D rd_blocksize
1029203c D rd_prompt
10292040 D mount_initrd
10292044 d initrd_fops
10292084 d fd_fops
10292098 d .LC36
1029209c d badmagic___0
102920a0 d badtty___1
102920a4 d tty_fops
102920e4 d hung_up_tty_fops
10292124 d tty_sem
10292138 d baud_table
102921b4 d n_baud_table
102921b8 D tty_ldisc_N_TTY
102921f8 d mem_fops
10292238 d kmem_fops
10292278 d null_fops
102922b8 d port_fops
102922f8 d zero_fops
10292338 d full_fops
10292378 d memory_fops
102923b8 d raw_fops
102923f8 d raw_ctl_fops
10292438 d misc_list
10292450 d misc_sem
10292464 d misc_fops
102924a4 d random_read_wakeup_thresh
102924a8 d random_write_wakeup_thresh
102924ac d poolinfo_table
1029256c d random_read_wait
10292578 d random_write_wait
10292584 D random_fops
102925c4 D urandom_fops
10292604 D random_table
10292738 D keyboard_type
1029273c D kd_mksound
10292740 d vt_activate_queue
1029274c d vcs_fops
1029278c d translations
10292f8c D dfont_unicount
1029308c D dfont_unitable
102932e0 d blankinterval
102932e4 D want_console
102932e8 D con_task_queue
102932f0 D color_table
10293300 D default_red
10293340 D default_grn
10293380 D default_blu
102933c0 D con_buf_sem
102933d4 d error___4
102933d8 D vt_console_driver
10293404 D console_tasklet
10293418 d sel_start
1029341c d inwordLut
1029343c d serial_version
10293440 d serial_revdate
10293444 d serial_name
10293448 d tq_serial
10293450 d uart_config
10293504 d rs_table
10296304 d tmp_buf_sem
10296318 d timedia_single_port
10296324 d timedia_dual_port
10296360 d timedia_quad_port
10296390 d timedia_eight_port
102963ac d timedia_data
102963d4 d pci_boards
102971c0 d info___1
102971c4 d sercons
102971f0 D keypress_wait
102971fc d npadch
10297200 d kbd
10297204 d key_handler
10297244 d spec_fn_table
10297294 d buf___0
10297298 d ret_diacr
102972a0 d pad_chars___1
102972a4 d app_map___2
102972a8 d cur_chars___3
102972ac d ledstate
102972b0 D keyboard_tasklet
102972c4 D plain_map
102973c4 D shift_map
102974c4 D altgr_map
102975c4 D ctrl_map
102976c4 D shift_ctrl_map
102977c4 D alt_map
102978c4 D ctrl_alt_map
102979c4 D key_maps
10297dc4 D keymap_count
10297dc8 D func_buf
10297e64 D funcbufptr
10297e68 D funcbufsize
10297e6c D funcbufleft
10297e70 D func_table
10298270 D accent_table
10298570 D accent_table_size
10298574 d gsc_ps2_kbd_ops
10298594 d keycode_translate
10298694 D hp_ps2kbd_sysrq_xlate
10298714 d high_keys
1029873c d e0_keys
102987bc D hp_plain_map
102988bc D hp_shift_map
102989bc D hp_altgr_map
10298abc D hp_ctrl_map
10298bbc D hp_shift_ctrl_map
10298cbc D hp_alt_map
10298dbc D hp_ctrl_alt_map
10298ebc d hil_kbd_ops
10298edc D sysrq_enabled
10298ee0 d devfs_handle
10298ee4 d lp_count
10298ee8 d lp_fops
10298f28 d parport_nr
10298f34 d reset
10298f38 d parport_ptr
10298f3c d lp_driver
10298f4c d gen_rtc_opened
10298f50 d gen_uie_on
10298f54 d gen_uie_data
10298f58 d gen_rtc_wait
10298f64 d gen_rtc_fops
10298fa4 d gen_rtc_dev
10298fbc d t21142_csr13
10298fc8 D t21142_csr14
10298fd4 d t21142_csr15
10298fe0 d eeprom_fixups
102991d8 d block_name
102991f0 d last_mediatable___0
102991f4 d last_ee_data___1
102991f8 d controller_index___2
102991fc d version
10299234 d max_interrupt_work
10299238 d rx_copybreak
1029923c d csr0
10299240 D tulip_debug
10299244 D tulip_tbl
10299370 d tulip_pci_tbl
102995d8 D t21040_csr13
102995e8 D t21041_csr13
102995f4 D t21041_csr14
10299600 D t21041_csr15
1029960c d last_phys_addr___1
10299614 d board_idx___4
10299618 d .LC63
10299628 d tulip_driver
10299648 d eth7_dev
10299778 d eth6_dev
102998a8 d eth5_dev
102999d8 d eth4_dev
10299b08 d eth3_dev
10299c38 d eth2_dev
10299d68 d eth1_dev
10299e98 d eth0_dev
10299fc8 D loopback_dev
1029a0f8 D dev_base
1029a0fc D dev_base_lock
1029a100 d version
1029a104 d i596_debug
1029a108 d rx_copybreak
1029a10c D init_setup
1029a11c d dma_consistent
1029a120 d rx_ring_size
1029a124 d ticks_limit
1029a128 d max_cmd_backlog
1029a12c D parport_default_timeslice
1029a130 D parport_default_spintime
1029a134 d portlist
1029a138 d portlist_tail
1029a13c D parportlist_lock
1029a140 d driver_chain
1029a144 D driverlist_lock
1029a148 d dead_ops
1029a1ac d parport_default_sysctl_table
1029a33c D parport_gsc_ops
1029a3a0 d parport_drivers_for
1029a3f0 d device_request_lock
1029a3f4 d scsi_bhqueue_lock
1029a3f8 d next_no___0
1029a3fc D scsi_hosts
1029a400 D scsi_host_no_list
1029a404 D scsi_hostlist
1029a408 D scsi_devicelist
1029a40c D max_scsi_hosts
1029a410 D next_scsi_host
1029a414 d generic_sense___0
1029a41c d tur_command___1
1029a424 d generic_sense
1029a42c d allocator_request_lock
1029a430 d dma_malloc_freelist
1029a434 d dma_sectors
1029a438 D scsi_dma_free_sectors
1029a43c D scsi_need_isa_buffer
1029a440 d dma_malloc_pages
1029a444 d device_list
1029a904 d max_scsi_luns
1029a908 d ncr_debug
1029a90c D sym53c8xx_lock
1029a910 d mp0
1029a9cc d first_host
1029a9d0 d driver_setup
1029aa70 d div_10M
1029aa8c d Symbios_trailer___1
1029aa94 d driver_template
1029ab00 d hosts_used
1029ab04 d lasi_scsi_drivers
1029ab70 D sim700_debug
1029ab74 d sim700_errors
1029ab78 d sim700_intrs
1029ab7c d ignore_ids
1029ab80 d opt_nodisc
1029ab84 d opt_noneg
1029ab88 d hosttype
1029ab8c d opt_base
1029ab90 d opt_irq
1029ab94 d dma_consistent
1029ab98 d SCRIPT
1029b04c d A_int_bad_msg1_used
1029b050 d A_int_bad_msg2_used
1029b054 d A_int_bad_msg3_used
1029b058 d A_int_cmd_bad_phase_used
1029b05c d A_int_cmd_complete_used
1029b060 d A_int_data_bad_phase_used
1029b064 d A_int_disc1_used
1029b068 d A_int_disc2_used
1029b06c d A_int_disc3_used
1029b070 d A_int_msg_sdtr1_used
1029b074 d A_int_msg_sdtr2_used
1029b078 d A_int_msg_sdtr3_used
1029b07c d A_int_no_msgout1_used
1029b080 d A_int_no_msgout2_used
1029b084 d A_int_no_msgout3_used
1029b088 d A_int_not_cmd_complete_used
1029b08c d A_int_not_rej_used
1029b090 d A_int_rej_msg1_used
1029b094 d A_int_rej_msg2_used
1029b098 d A_int_rej_msg3_used
1029b09c d A_int_resel_not_msgin_used
1029b0a0 d A_int_reselected_used
1029b0a4 d A_int_sel_no_ident_used
1029b0a8 d A_int_sel_not_cmd_used
1029b0ac d A_int_selected_used
1029b0b0 d A_int_status_not_msgin_used
1029b0b4 d A_int_test1a_used
1029b0b8 d A_int_test1b_used
1029b0b8 d A_msg_reject_used
1029b0c4 d A_reselected_identify_used
1029b0c8 d A_targ_cdb_used
1029b0cc d A_targ_cdb_cnt_used
1029b0d0 d A_targ_din_script_used
1029b0d4 d A_targ_dout_script_used
1029b0d8 d A_targ_msgin_used
1029b11c d A_targ_msgout_used
1029b12c d A_targ_msgout_cnt_used
1029b13c d A_targ_select_used
1029b140 d A_targ_status_used
1029b144 d A_test1_dst_used
1029b148 d A_test1_src_used
1029b14c d LABELPATCHES
1029b20c d EXTERNAL_PATCHES
1029b20c d INSTRUCTIONS
1029b210 d PATCHES
1029b214 d EXTERNAL_PATCHES_LEN
1029b218 d process_issue_queue_running
1029b21c d driver_template
1029b290 d hosts_used
1029b294 d zalon_id
1029b2a0 d pdc_result
1029b320 d zalon_scsi_drivers
1029b370 d ncr_debug
1029b374 D ncr53c8xx_lock
1029b378 d mp0
1029b434 d driver_setup
1029b4d4 d first_host
1029b4d8 d the_template
1029b4dc d div_10M
1029b4f8 d device_tab
1029b548 d driver_template
1029b5b4 d max_buffers
1029b5b8 d st_dev_arr_lock
1029b5bc d st_buffers
1029b5c0 d st_buffer_size
1029b5c4 d st_write_threshold
1029b5c8 d st_max_buffers
1029b5cc d st_max_sg_segs
1029b5d0 d scsi_tapes
1029b5d4 d st_template
1029b61c d reject_list
1029b67c d st_fops
1029b6bc d formats___0
1029b6cc d st_registered
1029b6d0 d sd_template
1029b718 d sd_fops
1029b72c d sd_gendisk
1029b75c d sd_gendisks
1029b760 d sr_template
1029b7a8 d sr_dops
1029b7e8 d loadmech___0
1029b808 d xa_test
1029b80c d sg_version_str
1029b810 d sg_version_num
1029b814 D sg_big_buff
1029b818 d def_reserved_size
1029b81c d sg_pool_secs_avail
1029b820 d dummy_cmdp
1029b824 d sg_dev_arr_lock
1029b828 d sg_template
1029b870 d sg_dev_arr
1029b874 d sg_fops
1029b8b4 d sg_registered___0
1029b8b8 d allow_ops
1029b8c4 d sg_proc_sgp
1029b8c8 d sg_proc_sg_dirname
1029b8cc d sg_proc_leaf_names
1029b8f0 d sg_proc_leaf_reads
1029b914 d sg_proc_leaf_writes
1029b938 d autoclose
1029b93c d lockdoor
1029b940 D cdrom_fops
1029b954 D cdrom_table
1029ba88 D cdrom_cdrom_table
1029bae0 D cdrom_root_table
1029bb38 D pci_root_buses
1029bb40 D pci_devices
1029bb48 d pci_drivers
1029bb50 d pci_compat_driver
1029bb70 d pci_lock
1029bb74 d pci_class_numbers
1029bc20 d pci_class_names
1029bd78 d proc_bus_pci_operations
1029bdb8 d linear_personality
1029bde0 d raid0_personality
1029be08 d retry_list_lock
1029be0c D raid1_retry_list
1029be10 d raid1_personality
1029be38 d raid5_personality
1029be60 d xor_block_8regs
1029be7c d xor_block_32regs
1029be98 d xor_block_8regs_p
1029beb4 d xor_block_32regs_p
1029bed0 d sysctl_speed_limit_min
1029bed4 d sysctl_speed_limit_max
1029bed8 d raid_table
1029bf5c d raid_dir_table
1029bfb4 d raid_root_table
1029c00c d md_gendisk
1029c03c d all_mddevs
1029c044 d device_names
1029c04c d nomem___0
1029c054 d all_raid_disks
1029c05c d pending_raid_disks
1029c064 d md_fops
1029c078 D resync_wait
1029c084 D md_notifier
1029c090 d name___1
1029c094 D proc_runway_root
1029c098 D proc_gsc_root
1029c09c d dino_drivers_for
1029c1bc d dino_cfg_ops
1029c1d4 D dino_port_ops
1029c1ec d dino_irq_ops
1029c1fc D dino_bios_ops
1029c204 d busdev_drivers_for
1029c270 d busdev_list
1029c274 D busdev_irq_ops
1029c284 d wax_driver_for
1029c2cc d lan_drivers_for
1029c338 d serial_drivers_for
1029c3c8 d hil_drivers_for
1029c410 d wax_eisa_drivers_for
1029c47c d wax_port_ops
1029c4c0 d socket_file_ops
1029c500 d sockets_in_use
1029c540 d sockfs_ops
1029c568 d .LC16
1029c574 d sock_fs_type
1029c58c d sockfs_dentry_operations
1029c5a4 d nargs
1029c5c0 D sysctl_wmem_max
1029c5c4 D sysctl_rmem_max
1029c5c8 D sysctl_wmem_default
1029c5cc D sysctl_rmem_default
1029c5d0 D sysctl_optmem_max
1029c5d4 D net_big_sklist_lock
1029c5d8 D sysctl_hot_list_len
1029c5dc d count___0
1029c5e0 D core_table
1029c848 D if_port_text
1029c864 d ptype_all
1029c868 d netdev_chain
1029c86c D netdev_nit
1029c870 D netdev_max_backlog
1029c874 D no_cong_thresh
1029c878 D no_cong
1029c87c D lo_cong
1029c880 D mod_cong
1029c884 d net_bh_lock___0
1029c888 d dev_boot_phase
1029c88c d dst_total
1029c890 d dst_lock
1029c894 d dst_gc_timer_inc
1029c898 d dst_gc_timer
1029c8ac D dst_dev_notifier
1029c8b8 d neigh_tbl_lock
1029c8bc D neigh_sysctl_template
1029cd0c D rtnl_sem
1029cd20 d net_rand_seed
1029cd24 D net_msg_cost
1029cd28 D net_msg_burst
1029cd2c d ratelimit_lock___0
1029cd30 d toks___1
1029cd34 D ether_table
1029cd60 D e802_table
1029cd90 D qdisc_tree_lock
1029cd94 D noop_qdisc_ops
1029cdd8 D noop_qdisc
1029ce38 D noqueue_qdisc_ops
1029ce78 D noqueue_qdisc
1029ced8 d pfifo_fast_ops
1029cf40 D ip_rt_min_delay
1029cf44 D ip_rt_max_delay
1029cf48 D ip_rt_gc_timeout
1029cf4c D ip_rt_gc_interval
1029cf50 D ip_rt_gc_min_interval
1029cf54 D ip_rt_redirect_number
1029cf58 D ip_rt_redirect_load
1029cf5c D ip_rt_redirect_silence
1029cf60 D ip_rt_error_cost
1029cf64 D ip_rt_error_burst
1029cf68 D ip_rt_gc_elasticity
1029cf6c D ip_rt_mtu_expires
1029cf70 D ip_rt_min_pmtu
1029cf74 D ip_rt_min_advmss
1029cf78 D ipv4_dst_ops
1029cfa4 D ip_tos2prio
1029cfb4 d rt_flush_lock
1029cfb8 d expire___1
1029cfbc d rt_peer_lock___5
1029cfc0 d ip_fb_id_lock___6
1029cfc4 d mtu_plateau
1029cfd8 D ipv4_route_table
1029d2f0 D inet_peer_idlock
1029d2f4 d peer_fake_node
1029d31c d peer_root
1029d320 d peer_pool_lock
1029d324 D inet_peer_threshold
1029d328 D inet_peer_minttl
1029d32c D inet_peer_maxttl
1029d330 D inet_peer_unused_tailp
1029d334 D inet_peer_unused_lock
1029d338 d peer_periodic_timer
1029d34c D inet_peer_gc_mintime
1029d350 D inet_peer_gc_maxtime
1029d354 d tcp_protocol
1029d36c d udp_protocol
1029d384 d icmp_protocol
1029d39c D inet_protocol_base
1029d3a0 D sysctl_ipfrag_high_thresh
1029d3a4 D sysctl_ipfrag_low_thresh
1029d3a8 D sysctl_ipfrag_time
1029d3ac d ipfrag_lock
1029d3b0 D ip_frag_nqueues
1029d3b4 D ip_frag_mem
1029d3b8 D sysctl_ip_dynaddr
1029d3bc D sysctl_ip_default_ttl
1029d3c0 d ip_packet_type
1029d3d4 D ip_ra_lock
1029d3d8 D sysctl_tcp_fin_timeout
1029d3dc D tcp_orphan_count
1029d3e0 D sysctl_tcp_wmem
1029d3ec D sysctl_tcp_rmem
1029d3f8 d new_state
1029d408 D sysctl_tcp_timestamps
1029d40c D sysctl_tcp_window_scaling
1029d410 D sysctl_tcp_sack
1029d414 D sysctl_tcp_fack
1029d418 D sysctl_tcp_reordering
1029d41c D sysctl_tcp_ecn
1029d420 D sysctl_tcp_dsack
1029d424 D sysctl_tcp_app_win
1029d428 D sysctl_tcp_adv_win_scale
1029d42c D sysctl_tcp_stdurg
1029d430 D sysctl_tcp_rfc1337
1029d434 D sysctl_tcp_max_orphans
1029d438 D sysctl_tcp_retrans_collapse
1029d43c D sysctl_tcp_syn_retries
1029d440 D sysctl_tcp_synack_retries
1029d444 D sysctl_tcp_keepalive_time
1029d448 D sysctl_tcp_keepalive_probes
1029d44c D sysctl_tcp_keepalive_intvl
1029d450 D sysctl_tcp_retries1
1029d454 D sysctl_tcp_retries2
1029d480 d tcp_socket
1029d4c0 D tcp_hashinfo
1029d5c0 D sysctl_local_port_range
1029d5c8 D tcp_port_rover
1029d5cc D sysctl_max_syn_backlog
1029d5d0 D or_ipv4
1029d5e4 D ipv4_specific
1029d614 D tcp_prot
1029d6c0 D sysctl_tcp_tw_recycle
1029d6c4 D sysctl_tcp_max_tw_buckets
1029d6c8 D sysctl_tcp_syncookies
1029d6cc D sysctl_tcp_abort_on_overflow
1029d6d0 D tcp_tw_count
1029d6d4 d tcp_tw_death_row_slot
1029d6d8 d tw_death_lock
1029d6dc d tcp_tw_timer
1029d6f0 d tcp_twcal_hand
1029d6f4 d tcp_twcal_timer
1029d708 D raw_v4_lock
1029d70c D raw_prot
1029d7b0 D udp_hash_lock
1029d7b4 D udp_prot
1029d858 d arp_generic_ops
1029d878 d arp_hh_ops
1029d898 d arp_direct_ops
1029d8b8 D arp_broken_ops
1029d8d8 D arp_tbl
1029da90 d arp_packet_type
1029daa4 D icmp_err_convert
1029db24 D sysctl_icmp_echo_ignore_all
1029db28 D sysctl_icmp_echo_ignore_broadcasts
1029db2c D sysctl_icmp_ignore_bogus_error_responses
1029db30 D icmp_socket
1029db34 d icmp_xmit_holder
1029db38 D sysctl_icmp_destunreach_time
1029db3c D sysctl_icmp_timeexceed_time
1029db40 D sysctl_icmp_paramprob_time
1029db44 D sysctl_icmp_echoreply_time
1029db48 d icmp_pointers
1029dcc4 D ipv4_devconf
1029dcf8 d ipv4_devconf_dflt
1029dd2c D inetdev_lock
1029dd30 D ip_netdev_notifier
1029dd3c d devinet_sysctl
1029e0dc D inet_stream_ops
1029e11c D inet_dgram_ops
1029e15c D inet_family_ops
1029e16c D sysctl_igmp_max_memberships
1029e170 d tcp_retr1_max
1029e174 d ip_local_port_range_min
1029e17c d ip_local_port_range_max
1029e184 D ipv4_table
1029ea74 D fib_inetaddr_notifier
1029ea80 D fib_netdev_notifier
1029ea8c d fib_info_lock
1029ea90 d fib_props
1029eaf8 d type2flags___0
1029eb28 d fib_hash_lock
1029eb2c d fn_hash_last_dflt
1029eb30 D sysctl_unix_max_dgram_qlen
1029eb34 D unix_table_lock
1029eb38 d unix_nr_socks
1029eb3c d ordernum___0
1029eb40 D unix_stream_ops
1029eb80 D unix_dgram_ops
1029ebc0 D unix_family_ops
1029ebd0 d gc_current
1029ebd4 D unix_tot_inflight
1029ebd8 d unix_gc_sem___0
1029ebec D unix_table
1029ec44 D unix_root_table
1029ec9c D unix_net_table
1029ecf4 d destroy_wait
1029ed00 D xprt_sock_lock
1029ed04 D xprt_lock
1029ed08 D rpc_xprt_pending
1029ed10 d xid___1
1029ed14 d schedq
1029ed1c d childq
1029ed24 d delay_queue
1029ed2c d rpciod_idle
1029ed38 d rpciod_killer
1029ed44 d rpciod_sema
1029ed58 D rpc_queue_lock
1029ed5c D rpc_sched_lock
1029ed60 d rpciod_running
1029ed74 d auth_flavors
1029ed94 D rpc_credcache_lock
1029ed98 D authnull_ops
1029edc0 D authunix_ops
1029ede8 d authtab
1029ee08 D pmap_lock
1029ee0c d pmap_procedures
1029ee5c d pmap_version2
1029ee68 d pmap_version
1029ee74 D pmap_program
1029ee88 d inited___0
1029ee8c d proc_net_rpc
1029ee90 d debug_table
1029ef6c d sunrpc_table
1029efc4 D net_table
1029f0cc D __atomic_lock
1029f0d0 D _ctype
1029f1d0 ? __exitcall_exit_shmem_fs
1029f1d4 ? __exitcall_exit_pipe_fs
1029f1d8 ? __exitcall_exit_som_binfmt
1029f1dc ? __exitcall_exit_script_binfmt
1029f1e0 ? __exitcall_exit_elf_binfmt
1029f1e4 ? __exitcall_exit_proc_fs
1029f1e8 ? __exitcall_exit_ext2_fs
1029f1ec ? __exitcall_exit_iso9660_fs
1029f1f0 ? __exitcall_rs_fini
1029f1f4 ? __exitcall_tulip_cleanup
1029f1f8 ? __exitcall_parport_gsc_exit_module
1029f1fc ? __exitcall_exit_scsi
1029f200 ? __exitcall_exit_this_scsi_driver
1029f204 ? __exitcall_exit_this_scsi_driver
1029f208 ? __exitcall_exit_this_scsi_driver
1029f20c ? __exitcall_exit_st
1029f210 ? __exitcall_exit_sd
1029f214 ? __exitcall_exit_sr
1029f218 ? __exitcall_exit_sg
1029f21c ? __exitcall_cdrom_exit
1029f220 ? __exitcall_linear_exit
1029f224 ? __exitcall_raid0_exit
1029f228 ? __exitcall_raid1_exit
1029f22c ? __exitcall_raid5_exit
1029f230 ? __exitcall_af_unix_exit
1029f240 A __start___ex_table
102a07f8 A __start___ksymtab
102a07f8 A __stop___ex_table
102a07f8 A __stop___ksymtab
102a4000 A __init_begin
102a4040 ? profile_setup
102a407c ? name_to_kdev_t
102a4130 ? root_dev_setup
102a4214 ? checksetup
102a42a4 ? calibrate_delay
102a4448 ? readonly
102a4474 ? readwrite
102a44a0 ? debug_kernel
102a44c4 ? quiet_kernel
102a44e8 ? parse_options
102a46bc ? start_kernel
102a4894 ? do_initcalls
102a48e0 ? do_basic_setup
102a49bc ? .L1525
102a4a60 ? .L1541
102a4ac0 ? reboot_setup
102a4ac4 ? mem_limit_func
102a4b8c ? setup_bootmem
102a4f74 ? mem_init
102a509c ? pagetable_init
102a52b4 ? gateway_init
102a532c ? paging_init
102a53f4 ? cache_init
102a5448 ? .L727
102a54a4 ? .L728
102a54d4 ? .L733
102a54e0 ? .L734
102a54ec ? register_fallback_cpu
102a55a0 ? collect_boot_cpu_data
102a55e4 ? .L875
102a55f4 ? .L876
102a5604 ? .L877
102a5634 ? .L878
102a56a0 ? .L883
102a56b0 ? .L884
102a56c4 ? .L885
102a5710 ? .L886
102a5710 ? setup_cmdline
102a57e8 ? dma_ops_init
102a5868 ? .L905
102a587c ? .L919
102a587c ? setup_arch
102a5900 ? .L921
102a5958 ? .L923
102a5958 ? check_ivt
102a5a08 ? trap_init
102a5a50 ? time_init
102a5b1c ? init_IRQ
102a5b34 ? pcxl_dma_init
102a5bd0 ? lba_init
102a5bf0 ? lba_driver_callback
102a5dbc ? iosapic_load_irt
102a5e8c ? iosapic_init
102a5eec ? sba_init
102a5f1c ? ccio_init
102a5f4c ? init_idle
102a5ff8 ? sched_init
102a6098 ? fork_init
102a60bc ? proc_caches_init
102a61e8 ? panic_setup
102a6214 ? console_setup
102a6268 ? .L643
102a63a4 ? .L667
102a63a4 ? softirq_init
102a642c ? reserve_setup
102a6514 ? sysctl_init
102a6544 ? uid_cache_init
102a65c4 ? signals_init
102a6610 ? page_cache_init
102a6748 ? kmem_cache_init
102a67c8 ? .L672
102a67fc ? .L675
102a67fc ? kmem_cache_sizes_init
102a6898 ? .L681
102a68e4 ? .L684
102a691c ? .L691
102a6938 ? .L692
102a6938 ? kmem_cpucache_init
102a6940 ? bootmem_bootmap_pages
102a6954 ? init_bootmem_core
102a69d4 ? reserve_bootmem_core
102a6a14 ? .L683
102a6ad0 ? .L698
102a6ad0 ? free_bootmem_core
102a6b08 ? .L700
102a6b9c ? .L706
102a6bc8 ? .L718
102a6be4 ? .L719
102a6be4 ? __alloc_bootmem_core
102a6c30 ? .L721
102a6ee4 ? .L775
102a6ee4 ? free_all_bootmem_core
102a7094 ? init_bootmem_node
102a70ac ? reserve_bootmem_node
102a70c8 ? free_bootmem_node
102a70e4 ? free_all_bootmem_node
102a70fc ? init_bootmem
102a7138 ? reserve_bootmem
102a7164 ? free_bootmem
102a7190 ? free_all_bootmem
102a71b0 ? __alloc_bootmem
102a723c ? __alloc_bootmem_node
102a7284 ? swap_setup
102a72cc ? kswapd_init
102a7320 ? free_area_init_core
102a781c ? free_area_init
102a7858 ? setup_mem_frac
102a78e4 ? free_area_init_node
102a7924 ? init_shmem_fs
102a7954 ? .L1118
102a799c ? .L1119
102a79a4 ? buffer_init
102a7b48 ? bdflush_init
102a7bcc ? .L2197
102a7bfc ? .L2199
102a7c20 ? .L2200
102a7c28 ? .L2201
102a7c28 ? mount_root
102a7cd8 ? .L1538
102a7db0 ? .L1562
102a7e00 ? .L1564
102a7e40 ? .L1571
102a7e90 ? .L1573
102a7ee8 ? .L1593
102a7f00 ? .L1594
102a7f18 ? .L1595
102a7f30 ? .L1596
102a7fd4 ? .L1597
102a80e8 ? change_root
102a8170 ? .L1736
102a8270 ? .L1748
102a8298 ? .L1757
102a82b8 ? .L1758
102a82e8 ? .L1739
102a8314 ? .L1741
102a8328 ? .L1759
102a8330 ? .L1760
102a8330 ? bdev_init
102a83a4 ? init_pipe_fs
102a83c8 ? .L929
102a8408 ? .L935
102a8410 ? fasync_init
102a8464 ? filelock_init
102a84c0 ? dcache_init
102a8644 ? vfs_caches_init
102a8710 ? inode_init
102a8898 ? kiobuf_setup
102a88e4 ? dnotify_init
102a8938 ? filesystem_setup
102a8950 ? init_som_binfmt
102a8970 ? init_script_binfmt
102a8990 ? init_elf_binfmt
102a89b0 ? proc_root_init
102a8a54 ? proc_tty_init
102a8b04 ? proc_misc_init
102a8c6c ? init_proc_fs
102a8c90 ? .L650
102a8cd0 ? .L656
102a8cd8 ? partition_setup
102a8d04 ? .L1597
102a8d1c ? .L1598
102a8d1c ? init_ext2_fs
102a8d3c ? init_iso9660_fs
102a8d5c ? root_nfs_parse_addr
102a8dcc ? .L810
102a8e20 ? .L817
102a8e2c ? root_nfs_parse
102a8fb4 ? root_nfs_name
102a90ec ? root_nfs_addr
102a914c ? root_nfs_init
102a918c ? nfs_root_setup
102a91e0 ? .L856
102a9234 ? .L859
102a9234 ? root_nfs_getport
102a92c4 ? root_nfs_ports
102a9320 ? .L867
102a93dc ? .L878
102a93ec ? root_nfs_get_handle
102a944c ? .L884
102a945c ? .L882
102a9484 ? .L885
102a949c ? .L886
102a94a0 ? nfs_root_data
102a9510 ? ipc_init
102a9538 ? ipc_init_ids
102a95f4 ? msg_init
102a9644 ? sem_init
102a969c ? shm_init
102a96e8 ? blk_dev_init
102a97a8 ? device_init
102a97e4 ? no_initrd
102a97f4 ? ramdisk_start_setup
102a9820 ? load_ramdisk
102a9854 ? prompt_ramdisk
102a9888 ? ramdisk_size
102a98b4 ? ramdisk_size2
102a98cc ? ramdisk_blocksize
102a98f8 ? rd_init
102a9ae0 ? identify_ramdisk_image
102a9c5c ? .L941
102a9cf4 ? .L958
102a9d78 ? .L959
102a9d80 ? rd_load_image
102a9f04 ? .L964
102a9f84 ? .L1014
102a9fdc ? .L972
102aa098 ? .L987
102aa20c ? .L1015
102aa224 ? .L1016
102aa234 ? .L1017
102aa250 ? .L1018
102aa26c ? rd_load_disk
102aa2b0 ? .L1019
102aa300 ? .L1024
102aa300 ? rd_load
102aa31c ? rd_load_secondary
102aa338 ? initrd_load
102aa360 ? malloc
102aa37c ? free
102aa394 ? gzip_mark
102aa398 ? gzip_release
102aa39c ? fill_inbuf
102aa41c ? flush_window
102aa4f4 ? error
102aa524 ? crd_load
102aa5ec ? .L1630
102aa61c ? .L1631
102aa620 ? console_init
102aa6b4 ? tty_init
102aa898 ? memory_devfs_register
102aa8ac ? chr_dev_init
102aa924 ? raw_init
102aa950 ? pty_init
102aaee8 ? misc_init
102aaf5c ? rand_initialize
102ab078 ? vcs_init
102ab0cc ? console_map_init
102ab10c ? .L1125
102ab130 ? .L1131
102ab130 ? con_init
102ab55c ? con_init_devfs
102ab5c0 ? printk_pnp_dev_id
102ab62c ? start_pci_pnp_board
102ab6b0 ? .L1815
102ab78c ? .L1833
102ab7b0 ? .L1834
102ab7d4 ? .L1835
102ab7d8 ? pci_plx9050_fn
102ab86c ? .L1842
102ab89c ? .L1845
102ab8a8 ? pci_siig10x_fn
102ab928 ? pci_siig20x_fn
102ab9dc ? pci_inteli960ni_fn
102aba40 ? pci_timedia_fn
102abad4 ? probe_serial_pci
102abbd0 ? rs_init
102abfd0 ? .L1932
102ac114 ? .L1958
102ac134 ? serial_console_setup
102ac3d8 ? serial_console_init
102ac3f8 ? kbd_init
102ac530 ? lasi_ps2_register
102ac59c ? .L679
102ac5a0 ? .L680
102ac630 ? .L685
102ac648 ? .L686
102ac64c ? gsc_ps2_init
102ac670 ? hil_keyb_init
102ac81c ? lp_setup
102ac880 ? .L878
102ac91c ? .L894
102ac93c ? .L895
102ac94c ? lp_init
102aca70 ? .L943
102acabc ? .L945
102acac8 ? .L939
102acaf8 ? .L946
102acaf8 ? rtc_generic_init
102acb4c ? tulip_init
102acbb0 ? probe_list
102acc40 ? ethif_probe
102acd20 ? network_probe
102acd60 ? network_ldisc_init
102acd64 ? special_device_init
102acd68 ? net_device_init
102acd90 ? loopback_init
102ace68 ? i82596_probe
102ad078 ? .L1736
102ad0b8 ? .L1747
102ad118 ? lasi_i82596_probe
102ad134 ? asp_i82596_probe
102ad150 ? parport_setup
102ad400 ? parport_init
102ad430 ? parport_init_chip
102ad4a4 ? .L834
102ad504 ? .L838
102ad514 ? parport_gsc_init
102ad540 ? parport_gsc_init_module
102ad560 ? scsi_logging_setup
102ad5bc ? scsi_host_no_insert
102ad678 ? .L1128
102ad6a4 ? .L1139
102ad6a4 ? scsi_host_no_init
102ad764 ? scsi_setup
102ad774 ? init_scsi
102ad870 ? scsi_luns_setup
102ad8c0 ? pci_get_base_address
102ad8fc ? remap_pci_mem
102ad914 ? unmap_pci_mem
102ad918 ? ncr_script_fill
102ad9d4 ? ncr_script_copy_and_bind
102adda8 ? ncr_Symbios_setup_target
102ade30 ? ncr_Tekram_setup_target
102adebc ? ncr_save_initial_setting
102adff4 ? ncr_prepare_setting
102ae390 ? .L1285
102ae558 ? .L1361
102ae568 ? .L1362
102ae8b0 ? ncr_attach
102aebe8 ? .L1365
102aef4c ? .L1533
102aef98 ? .L1534
102af1a8 ? .L1535
102af1d8 ? .L1536
102af1dc ? ncr_regtest
102af260 ? ncr_snooptest
102af47c ? ncrgetfreq
102af624 ? ncr_getfreq
102af680 ? ncr_getclock
102af868 ? ncr_getpciclock
102af8c0 ? get_setup_token
102af940 ? sym53c8xx_setup
102afacc ? .L3888
102afc00 ? .L3953
102afc40 ? .L3954
102afc6c ? ncr_print_driver_setup
102afd7c ? sym53c8xx_detect
102afee8 ? .L3978
102b00f0 ? .L4042
102b0118 ? sym53c8xx_pci_init
102b01a0 ? .L4044
102b03fc ? .L4084
102b047c ? .L4093
102b0558 ? .L4125
102b05fc ? .L4126
102b06f4 ? .L4127
102b06f8 ? ncr_get_nvram
102b07a4 ? S24C16_set_bit
102b08a4 ? S24C16_start
102b0914 ? S24C16_stop
102b095c ? S24C16_do_bit
102b09f0 ? S24C16_write_ack
102b0a70 ? S24C16_read_ack
102b0ae8 ? S24C16_write_byte
102b0b6c ? S24C16_read_byte
102b0c10 ? sym_read_S24C16_nvram
102b0d28 ? .L4491
102b0e5c ? .L4504
102b0e5c ? sym_read_Symbios_nvram
102b0f00 ? T93C46_Clk
102b0f84 ? T93C46_Read_Bit
102b0ffc ? T93C46_Write_Bit
102b109c ? T93C46_Stop
102b1124 ? T93C46_Send_Command
102b11a4 ? T93C46_Read_Word
102b1234 ? T93C46_Read_Data
102b12e0 ? sym_read_T93C46_nvram
102b13b8 ? sym_read_Tekram_nvram
102b13f0 ? .L4579
102b1478 ? .L4583
102b147c ? init_this_scsi_driver
102b14cc ? init_this_scsi_driver
102b151c ? zalon_scsi_callback
102b15c0 ? .L860
102b1640 ? .L864
102b1640 ? pci_get_base_address
102b167c ? remap_pci_mem
102b1694 ? unmap_pci_mem
102b1698 ? get_setup_token
102b1718 ? sym53c8xx__setup
102b18a4 ? .L1051
102b19d8 ? .L1116
102b1a18 ? .L1117
102b1a44 ? ncr_print_driver_setup
102b1b54 ? sym53c8xx_pci_init
102b1bdc ? .L1159
102b1d8c ? .L1183
102b1e24 ? .L1193
102b1edc ? .L1222
102b1f54 ? .L1223
102b1fe0 ? .L1224
102b1fe4 ? sym53c8xx__detect
102b2114 ? .L1231
102b2200 ? .L1262
102b2210 ? ncr_script_fill
102b2494 ? ncr_script_copy_and_bind
102b27a4 ? ncr_prepare_setting
102b2fbc ? ncr_attach
102b323c ? .L1548
102b331c ? .L1536
102b3458 ? .L1596
102b3584 ? .L1597
102b3584 ? ncr_regtest
102b35f0 ? ncr_snooptest
102b37b8 ? ncrgetfreq
102b399c ? ncr_getclock
102b3b7c ? ncr53c8xx_setup
102b3b94 ? ncr53c8xx_detect
102b3bd4 ? init_this_scsi_driver
102b3c24 ? st_setup
102b3d98 ? init_st
102b3dc8 ? init_sd
102b3df4 ? init_sr
102b3e20 ? sg_def_reserved_size_setup
102b3e7c ? init_sg
102b3ebc ? cdrom_init
102b3ee0 ? pci_read_bridge_bases
102b3fdc ? .L931
102b4060 ? .L933
102b40d8 ? .L923
102b415c ? .L941
102b4170 ? .L942
102b4184 ? .L943
102b4184 ? pci_alloc_bus
102b41dc ? pci_add_new_bus
102b4280 ? pci_scan_bridge
102b4350 ? .L962
102b444c ? .L973
102b445c ? pci_scan_device
102b452c ? pci_scan_slot
102b4594 ? .L1006
102b464c ? .L1016
102b4660 ? pci_do_scan_bus
102b4740 ? pci_bus_exists
102b47ac ? pci_alloc_primary_bus
102b4834 ? pci_scan_bus
102b4884 ? pci_init
102b48d0 ? pci_setup
102b495c ? quirk_passive_release
102b4974 ? .L37
102b49f0 ? .L42
102b49f0 ? quirk_isa_dma_hangs
102b4a10 ? .L44
102b4a2c ? .L46
102b4a2c ? quirk_nopcipci
102b4a70 ? quirk_triton
102b4ab4 ? quirk_viaetbf
102b4af8 ? quirk_natoma
102b4b3c ? quirk_s3_64M
102b4b74 ? quirk_io_region
102b4bd4 ? quirk_ali7101_acpi
102b4c38 ? quirk_piix4_acpi
102b4c9c ? quirk_vt82c586_acpi
102b4d00 ? quirk_vt82c686_acpi
102b4d84 ? quirk_piix3_usb
102b4dd4 ? quirk_vt82c598_id
102b4e08 ? pci_name_device
102b4e58 ? .L36
102b4ecc ? .L52
102b4ef0 ? .L53
102b4ef4 ? pci_claim_resource
102b4f6c ? .L650
102b4f98 ? .L651
102b4f98 ? pdev_sort_resources
102b4ff0 ? .L676
102b50b8 ? .L695
102b50bc ? pdev_enable_device
102b51dc ? pci_proc_init
102b5298 ? pbus_assign_resources_sorted
102b54d0 ? pci_setup_bridge
102b5508 ? .L680
102b566c ? .L688
102b5674 ? pbus_assign_resources
102b5764 ? pci_assign_unassigned_resources
102b5808 ? pci_bridge_check_io
102b589c ? linear_init
102b58c0 ? raid0_init
102b58e4 ? raid1_init
102b5908 ? raid5_init
102b592c ? md_run_setup
102b5934 ? raid_setup
102b5a08 ? md_init
102b5ae8 ? .L3102
102b5b20 ? .L3104
102b5b20 ? gsc_init
102b5bf4 ? dino_init
102b5c18 ? dino_bios_init
102b5c1c ? dino_set_bars
102b5d00 ? dino_card_fixup
102b5d90 ? dino_fixup_bus
102b5e9c ? dino_card_init
102b6034 ? dino_bridge_init
102b60fc ? dino_common_init
102b61a4 ? .L870
102b6268 ? .L871
102b627c ? .L872
102b6290 ? .L873
102b6294 ? dino_driver_callback
102b6374 ? .L879
102b63c8 ? .L884
102b63f4 ? busdevices_init
102b6438 ? lasi_init_irq
102b64a8 ? lasi_init_chip
102b6604 ? asp_init_chip
102b66f4 ? .L684
102b6720 ? .L689
102b6724 ? register_wax_driver
102b6744 ? wax_init_irq
102b6770 ? wax_init_chip
102b689c ? .L684
102b68c0 ? .L685
102b68d8 ? lan_init_chip
102b6998 ? .L883
102b69d0 ? .L884
102b69d4 ? register_lan_drivers
102b69f4 ? serial_init_chip
102b6b14 ? probe_serial_gsc
102b6b38 ? hil_init_chip
102b6ba0 ? register_hil_drivers
102b6bc0 ? register_wax_eisa_driver
102b6be0 ? sock_init
102b6c58 ? sk_init
102b6c94 ? .L1781
102b6cf4 ? .L1787
102b6cf4 ? skb_init
102b6d6c ? netdev_boot_setup
102b6e00 ? net_dev_init
102b6f48 ? .L2029
102b7014 ? .L2056
102b7070 ? dev_mcast_init
102b70ac ? dst_init
102b70cc ? eth_setup
102b7160 ? ip_rt_init
102b73ec ? inet_initpeers
102b74d8 ? ip_init
102b7508 ? tcp_init
102b7914 ? tcp_v4_init
102b7a00 ? arp_init
102b7a78 ? icmp_init
102b7b74 ? devinet_init
102b7bcc ? inet_init
102b7d84 ? ip_fib_init
102b7dfc ? fib_hash_init
102b7ec8 ? ic_open_devs
102b7f18 ? .L1099
102b7f50 ? .L1102
102b7f74 ? .L1116
102b7fd0 ? .L1130
102b7fe0 ? .L1131
102b7fe8 ? .L1132
102b7ffc ? .L1108
102b8088 ? .L1121
102b80a4 ? .L1133
102b80b8 ? .L1134
102b80fc ? .L1135
102b80fc ? ic_close_devs
102b8130 ? .L1138
102b8194 ? .L1146
102b81b8 ? .L1150
102b81c0 ? .L1151
102b81c0 ? ic_dev_ioctl
102b8200 ? ic_route_ioctl
102b8240 ? ic_setup_if
102b8368 ? ic_setup_routes
102b83d8 ? .L1173
102b8448 ? .L1174
102b844c ? ic_defaults
102b8464 ? .L1176
102b8490 ? .L1178
102b8524 ? .L1192
102b855c ? .L1193
102b855c ? ic_bootp_init_ext
102b85d0 ? ic_bootp_send_if
102b8740 ? .L1211
102b87d8 ? .L1198
102b8804 ? .L1213
102b881c ? .L1214
102b8824 ? ic_bootp_send
102b8874 ? ic_bootp_string
102b88c0 ? ic_do_bootp_ext
102b8a34 ? .L1228
102b8ac0 ? .L1283
102b8ad8 ? .L1284
102b8ad8 ? ic_bootp_recv
102b8b08 ? .L1287
102b8b38 ? .L1307
102b8b60 ? .L1317
102b8c54 ? .L1318
102b8c80 ? .L1319
102b8d54 ? ic_dynamic
102b9004 ? ip_auto_config
102b90ec ? ic_proto_name
102b917c ? ip_auto_config_setup
102b92b4 ? .L1391
102b9380 ? .L1424
102b938c ? nfsaddrs_config_setup
102b93a4 ? af_unix_init
102b9404 ? __setup_str_profile_setup
102b9410 ? root_dev_names
102b9628 ? __setup_str_root_dev_setup
102b9630 ? __setup_str_readonly
102b9634 ? __setup_str_readwrite
102b9638 ? __setup_str_debug_kernel
102b9640 ? __setup_str_quiet_kernel
102b9648 ? __setup_str_panic_setup
102b9650 ? __setup_str_console_setup
102b965c ? __setup_str_reserve_setup
102b9668 ? __setup_str_setup_mem_frac
102b9674 ? nfs_root_name
102b9774 ? servaddr
102b9778 ? nfs_path
102b9b78 ? nfs_data
102b9d20 ? nfs_port
102b9d24 ? mount_port
102b9d28 ? root_int_opts
102b9d78 ? root_bool_opts
102b9e38 ? __setup_str_nfs_root_setup
102b9e44 ? __setup_str_no_initrd
102b9e50 ? __setup_str_ramdisk_start_setup
102b9e60 ? __setup_str_load_ramdisk
102b9e70 ? __setup_str_prompt_ramdisk
102b9e80 ? __setup_str_ramdisk_size
102b9e8c ? __setup_str_ramdisk_size2
102b9e9c ? __setup_str_ramdisk_blocksize
102b9eb0 ? serial_options
102b9edc ? lasi_psaux_drivers_for
102b9f24 ? eisa_probes
102b9f2c ? mca_probes
102b9f34 ? isa_probes
102b9f3c ? parport_probes
102b9f44 ? m68k_probes
102b9f4c ? sgi_probes
102b9f54 ? mips_probes
102b9f5c ? pci_probes
102b9f64 ? io
102b9f88 ? irq
102b9fa8 ? dma
102b9fc8 ? parport_setup_ptr
102b9fcc ? __setup_str_parport_setup
102b9fd8 ? parport_count
102b9fdc ? __setup_str_scsi_logging_setup
102b9fec ? __setup_str_scsi_setup
102b9ff8 ? __setup_str_scsi_luns_setup
102ba008 ? driver_safe_setup
102ba0a8 ? Tekram_sync
102ba0b8 ? script0
102bae70 ? scripth0
102bb468 ? setup_token
102bb4fc ? __setup_str_sym53c8xx_setup
102bb508 ? ncr_chip_table
102bb658 ? ncr_chip_ids
102bb678 ? __setup_str_param_setup
102bb680 ? driver_safe_setup
102bb720 ? setup_token
102bb7b4 ? ncr_chip_table
102bb904 ? script0
102bc7b0 ? scripth0
102bdc08 ? __setup_str_ncr53c8xx_setup
102bdc14 ? ncr_chip_ids
102bdc30 ? parms
102bdc50 ? __setup_str_st_setup
102bdc54 ? __setup_str_sg_def_reserved_size_setup
102bdc6c ? __setup_str_pci_setup
102bdc74 ? pci_fixups
102bddc4 ? __vendorstr_0000
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102bddf4 ? __vendorstr_0033
102bde04 ? __vendorstr_003d
102bde24 ? __vendorstr_0070
102bde44 ? __vendorstr_0100
102bde58 ? __vendorstr_0675
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102d2d1c ? __devices_111f
102d2d2c ? __devices_1120
102d2d2c ? __devices_1121
102d2d2c ? __devices_1122
102d2d2c ? __devices_1123
102d2d2c ? __devices_1124
102d2d2c ? __devices_1125
102d2d2c ? __devices_1126
102d2d2c ? __devices_1127
102d2d5c ? __devices_1129
102d2d5c ? __devices_112a
102d2d5c ? __devices_112b
102d2d5c ? __devices_112c
102d2d5c ? __devices_112d
102d2d5c ? __devices_112e
102d2d5c ? __devices_112f
102d2d6c ? __devices_1130
102d2d6c ? __devices_1131
102d2d7c ? __devices_1132
102d2d7c ? __devices_1133
102d2dec ? __devices_1134
102d2df4 ? __devices_1135
102d2dfc ? __devices_1136
102d2dfc ? __devices_1137
102d2dfc ? __devices_1138
102d2e04 ? __devices_1139
102d2e0c ? __devices_113a
102d2e0c ? __devices_113b
102d2e0c ? __devices_113c
102d2e3c ? __devices_113d
102d2e3c ? __devices_113e
102d2e3c ? __devices_113f
102d2e74 ? __devices_1140
102d2e74 ? __devices_1141
102d2e74 ? __devices_1142
102d2e9c ? __devices_1143
102d2e9c ? __devices_1144
102d2ea4 ? __devices_1145
102d2ea4 ? __devices_1146
102d2ea4 ? __devices_1147
102d2ea4 ? __devices_1148
102d2ebc ? __devices_1149
102d2ebc ? __devices_114a
102d2ec4 ? __devices_114b
102d2ec4 ? __devices_114c
102d2ec4 ? __devices_114d
102d2ec4 ? __devices_114e
102d2ec4 ? __devices_114f
102d2f94 ? __devices_1150
102d2f94 ? __devices_1151
102d2f94 ? __devices_1152
102d2f94 ? __devices_1153
102d2f94 ? __devices_1154
102d2f94 ? __devices_1155
102d2f94 ? __devices_1156
102d2f94 ? __devices_1157
102d2f94 ? __devices_1158
102d2fac ? __devices_1159
102d2fb4 ? __devices_115a
102d2fb4 ? __devices_115b
102d2fb4 ? __devices_115c
102d2fb4 ? __devices_115d
102d2fec ? __devices_115e
102d2fec ? __devices_115f
102d2fec ? __devices_1160
102d2fec ? __devices_1161
102d2fec ? __devices_1162
102d2fec ? __devices_1163
102d2ffc ? __devices_1164
102d2ffc ? __devices_1165
102d3004 ? __devices_1166
102d303c ? __devices_1167
102d303c ? __devices_1168
102d303c ? __devices_1169
102d303c ? __devices_116a
102d305c ? __devices_116b
102d305c ? __devices_116c
102d305c ? __devices_116d
102d305c ? __devices_116e
102d305c ? __devices_116f
102d305c ? __devices_1170
102d305c ? __devices_1171
102d305c ? __devices_1172
102d305c ? __devices_1173
102d305c ? __devices_1174
102d305c ? __devices_1175
102d305c ? __devices_1176
102d305c ? __devices_1177
102d305c ? __devices_1178
102d3064 ? __devices_1179
102d30bc ? __devices_117a
102d30bc ? __devices_117b
102d30bc ? __devices_117c
102d30bc ? __devices_117d
102d30bc ? __devices_117e
102d30bc ? __devices_117f
102d30bc ? __devices_1180
102d30ec ? __devices_1181
102d30ec ? __devices_1183
102d30ec ? __devices_1184
102d30ec ? __devices_1185
102d30ec ? __devices_1186
102d30f4 ? __devices_1187
102d30f4 ? __devices_1188
102d30f4 ? __devices_1189
102d30f4 ? __devices_118a
102d30f4 ? __devices_118b
102d30f4 ? __devices_118c
102d30fc ? __devices_118d
102d3184 ? __devices_118e
102d3184 ? __devices_118f
102d3184 ? __devices_1190
102d318c ? __devices_1191
102d31e4 ? __devices_1192
102d31e4 ? __devices_1193
102d31f4 ? __devices_1194
102d31f4 ? __devices_1195
102d31f4 ? __devices_1196
102d31f4 ? __devices_1197
102d31f4 ? __devices_1198
102d31f4 ? __devices_1199
102d31f4 ? __devices_119a
102d31f4 ? __devices_119b
102d31fc ? __devices_119c
102d31fc ? __devices_119d
102d31fc ? __devices_119e
102d31fc ? __devices_119f
102d31fc ? __devices_11a0
102d31fc ? __devices_11a1
102d31fc ? __devices_11a2
102d31fc ? __devices_11a3
102d31fc ? __devices_11a4
102d31fc ? __devices_11a5
102d31fc ? __devices_11a6
102d31fc ? __devices_11a7
102d31fc ? __devices_11a8
102d31fc ? __devices_11a9
102d3204 ? __devices_11aa
102d3204 ? __devices_11ab
102d321c ? __devices_11ac
102d321c ? __devices_11ad
102d322c ? __devices_11ae
102d322c ? __devices_11af
102d322c ? __devices_11b0
102d324c ? __devices_11b1
102d324c ? __devices_11b2
102d324c ? __devices_11b3
102d324c ? __devices_11b4
102d324c ? __devices_11b5
102d324c ? __devices_11b6
102d324c ? __devices_11b7
102d324c ? __devices_11b8
102d3254 ? __devices_11b9
102d325c ? __devices_11ba
102d325c ? __devices_11bb
102d325c ? __devices_11bc
102d3264 ? __devices_11bd
102d3264 ? __devices_11be
102d3264 ? __devices_11bf
102d3264 ? __devices_11c0
102d3264 ? __devices_11c1
102d333c ? __devices_11c2
102d333c ? __devices_11c3
102d333c ? __devices_11c4
102d333c ? __devices_11c5
102d333c ? __devices_11c6
102d333c ? __devices_11c7
102d333c ? __devices_11c8
102d3354 ? __devices_11c9
102d3364 ? __devices_11ca
102d3364 ? __devices_11cb
102d337c ? __devices_11cc
102d337c ? __devices_11cd
102d337c ? __devices_11ce
102d337c ? __devices_11cf
102d337c ? __devices_11d0
102d337c ? __devices_11d1
102d3384 ? __devices_11d2
102d3384 ? __devices_11d3
102d3384 ? __devices_11d4
102d3384 ? __devices_11d5
102d3394 ? __devices_11d6
102d3394 ? __devices_11d7
102d3394 ? __devices_11d8
102d3394 ? __devices_11d9
102d3394 ? __devices_11da
102d3394 ? __devices_11db
102d3394 ? __devices_11dc
102d3394 ? __devices_11dd
102d3394 ? __devices_11de
102d33a4 ? __devices_11df
102d33a4 ? __devices_11e0
102d33a4 ? __devices_11e1
102d33a4 ? __devices_11e2
102d33a4 ? __devices_11e3
102d33a4 ? __devices_11e4
102d33a4 ? __devices_11e5
102d33a4 ? __devices_11e6
102d33a4 ? __devices_11e7
102d33a4 ? __devices_11e8
102d33a4 ? __devices_11e9
102d33a4 ? __devices_11ea
102d33a4 ? __devices_11eb
102d33a4 ? __devices_11ec
102d33a4 ? __devices_11ed
102d33a4 ? __devices_11ee
102d33a4 ? __devices_11ef
102d33a4 ? __devices_11f0
102d33dc ? __devices_11f1
102d33dc ? __devices_11f2
102d33dc ? __devices_11f3
102d33dc ? __devices_11f4
102d33e4 ? __devices_11f5
102d33e4 ? __devices_11f6
102d340c ? __devices_11f7
102d340c ? __devices_11f8
102d3414 ? __devices_11f9
102d3414 ? __devices_11fa
102d3414 ? __devices_11fb
102d3414 ? __devices_11fc
102d3414 ? __devices_11fd
102d3414 ? __devices_11fe
102d346c ? __devices_11ff
102d346c ? __devices_1200
102d346c ? __devices_1201
102d346c ? __devices_1202
102d346c ? __devices_1203
102d346c ? __devices_1204
102d346c ? __devices_1205
102d346c ? __devices_1206
102d346c ? __devices_1208
102d3474 ? __devices_1209
102d3474 ? __devices_120a
102d3474 ? __devices_120b
102d3474 ? __devices_120c
102d3474 ? __devices_120d
102d3474 ? __devices_120e
102d34d4 ? __devices_120f
102d34dc ? __devices_1210
102d34dc ? __devices_1211
102d34dc ? __devices_1212
102d34dc ? __devices_1213
102d34dc ? __devices_1214
102d34dc ? __devices_1215
102d34dc ? __devices_1216
102d34dc ? __devices_1217
102d350c ? __devices_1218
102d350c ? __devices_1219
102d350c ? __devices_121a
102d353c ? __devices_121b
102d353c ? __devices_121c
102d353c ? __devices_121d
102d353c ? __devices_121e
102d353c ? __devices_121f
102d353c ? __devices_1220
102d3544 ? __devices_1221
102d3544 ? __devices_1222
102d3544 ? __devices_1223
102d3594 ? __devices_1224
102d3594 ? __devices_1225
102d3594 ? __devices_1227
102d3594 ? __devices_1228
102d3594 ? __devices_1229
102d3594 ? __devices_122a
102d3594 ? __devices_122b
102d3594 ? __devices_122c
102d3594 ? __devices_122d
102d35ac ? __devices_122e
102d35ac ? __devices_122f
102d35ac ? __devices_1230
102d35ac ? __devices_1231
102d35ac ? __devices_1232
102d35ac ? __devices_1233
102d35ac ? __devices_1234
102d35ac ? __devices_1235
102d35ac ? __devices_1236
102d35bc ? __devices_1237
102d35bc ? __devices_1238
102d35bc ? __devices_1239
102d35bc ? __devices_123a
102d35bc ? __devices_123b
102d35bc ? __devices_123c
102d35bc ? __devices_123d
102d35d4 ? __devices_123e
102d35d4 ? __devices_123f
102d35ec ? __devices_1240
102d35ec ? __devices_1241
102d35ec ? __devices_1242
102d35f4 ? __devices_1243
102d35f4 ? __devices_1244
102d3604 ? __devices_1245
102d3604 ? __devices_1246
102d3604 ? __devices_1247
102d3604 ? __devices_1248
102d3604 ? __devices_1249
102d3604 ? __devices_124a
102d3604 ? __devices_124b
102d3604 ? __devices_124c
102d3604 ? __devices_124d
102d361c ? __devices_124e
102d361c ? __devices_124f
102d3624 ? __devices_1250
102d3624 ? __devices_1251
102d3624 ? __devices_1253
102d3624 ? __devices_1254
102d3624 ? __devices_1255
102d364c ? __devices_1256
102d364c ? __devices_1257
102d364c ? __devices_1258
102d364c ? __devices_1259
102d3654 ? __devices_125a
102d3654 ? __devices_125b
102d3654 ? __devices_125c
102d3654 ? __devices_125d
102d36b4 ? __devices_125e
102d36b4 ? __devices_125f
102d36b4 ? __devices_1260
102d36c4 ? __devices_1261
102d36c4 ? __devices_1262
102d36c4 ? __devices_1263
102d36c4 ? __devices_1264
102d36c4 ? __devices_1265
102d36c4 ? __devices_1266
102d36d4 ? __devices_1267
102d36e4 ? __devices_1268
102d36e4 ? __devices_1269
102d36e4 ? __devices_126a
102d36e4 ? __devices_126b
102d36e4 ? __devices_126c
102d36e4 ? __devices_126d
102d36e4 ? __devices_126e
102d36e4 ? __devices_126f
102d371c ? __devices_1270
102d371c ? __devices_1271
102d371c ? __devices_1272
102d371c ? __devices_1273
102d3724 ? __devices_1274
102d373c ? __devices_1275
102d373c ? __devices_1276
102d373c ? __devices_1277
102d373c ? __devices_1278
102d373c ? __devices_1279
102d375c ? __devices_127a
102d37cc ? __devices_127b
102d37cc ? __devices_127c
102d37cc ? __devices_127d
102d37cc ? __devices_127e
102d37cc ? __devices_127f
102d37cc ? __devices_1280
102d37cc ? __devices_1281
102d37cc ? __devices_1282
102d37d4 ? __devices_1283
102d37fc ? __devices_1284
102d37fc ? __devices_1285
102d3804 ? __devices_1286
102d3804 ? __devices_1287
102d3814 ? __devices_1288
102d3814 ? __devices_1289
102d3814 ? __devices_128a
102d3814 ? __devices_128b
102d3814 ? __devices_128c
102d3814 ? __devices_128d
102d381c ? __devices_128e
102d3844 ? __devices_128f
102d3844 ? __devices_1290
102d3844 ? __devices_1291
102d3844 ? __devices_1292
102d3844 ? __devices_1293
102d3844 ? __devices_1294
102d3844 ? __devices_1295
102d3844 ? __devices_1296
102d3844 ? __devices_1297
102d3844 ? __devices_1298
102d3844 ? __devices_1299
102d3844 ? __devices_129a
102d3844 ? __devices_129b
102d3844 ? __devices_129c
102d3844 ? __devices_129d
102d3844 ? __devices_129e
102d3844 ? __devices_129f
102d3844 ? __devices_12a0
102d3844 ? __devices_12a1
102d3844 ? __devices_12a2
102d3844 ? __devices_12a3
102d3844 ? __devices_12a4
102d3844 ? __devices_12a5
102d3844 ? __devices_12a6
102d3844 ? __devices_12a7
102d3844 ? __devices_12a8
102d3844 ? __devices_12a9
102d3844 ? __devices_12aa
102d3844 ? __devices_12ab
102d384c ? __devices_12ac
102d384c ? __devices_12ad
102d384c ? __devices_12ae
102d3854 ? __devices_12af
102d3854 ? __devices_12b0
102d3854 ? __devices_12b1
102d3854 ? __devices_12b2
102d3854 ? __devices_12b3
102d3854 ? __devices_12b4
102d3854 ? __devices_12b5
102d3854 ? __devices_12b6
102d3854 ? __devices_12b7
102d3854 ? __devices_12b8
102d3854 ? __devices_12b9
102d386c ? __devices_12ba
102d386c ? __devices_12bb
102d386c ? __devices_12bc
102d386c ? __devices_12bd
102d386c ? __devices_12be
102d387c ? __devices_12bf
102d387c ? __devices_12c0
102d387c ? __devices_12c1
102d387c ? __devices_12c2
102d387c ? __devices_12c3
102d387c ? __devices_12c4
102d387c ? __devices_12c5
102d3894 ? __devices_12c6
102d3894 ? __devices_12c7
102d3894 ? __devices_12c8
102d3894 ? __devices_12c9
102d3894 ? __devices_12ca
102d3894 ? __devices_12cb
102d3894 ? __devices_12cc
102d3894 ? __devices_12cd
102d3894 ? __devices_12ce
102d3894 ? __devices_12cf
102d3894 ? __devices_12d0
102d3894 ? __devices_12d1
102d3894 ? __devices_12d2
102d38dc ? __devices_12d3
102d38dc ? __devices_12d4
102d38dc ? __devices_12d5
102d38dc ? __devices_12d6
102d38dc ? __devices_12d7
102d38dc ? __devices_12d8
102d38dc ? __devices_12d9
102d38dc ? __devices_12da
102d38dc ? __devices_12db
102d38dc ? __devices_12dc
102d38dc ? __devices_12dd
102d38dc ? __devices_12de
102d38dc ? __devices_12df
102d38dc ? __devices_12e0
102d38f4 ? __devices_12e1
102d38f4 ? __devices_12e2
102d38f4 ? __devices_12e3
102d38f4 ? __devices_12e4
102d38f4 ? __devices_12e5
102d38f4 ? __devices_12e6
102d38f4 ? __devices_12e7
102d38f4 ? __devices_12e8
102d38f4 ? __devices_12e9
102d38f4 ? __devices_12ea
102d38f4 ? __devices_12eb
102d3914 ? __devices_12ec
102d3914 ? __devices_12ed
102d3914 ? __devices_12ee
102d3914 ? __devices_12ef
102d3914 ? __devices_12f0
102d3914 ? __devices_12f1
102d3914 ? __devices_12f2
102d3914 ? __devices_12f3
102d3914 ? __devices_12f4
102d3914 ? __devices_12f5
102d3914 ? __devices_12f6
102d3914 ? __devices_12f7
102d3914 ? __devices_12f8
102d391c ? __devices_12f9
102d391c ? __devices_12fb
102d391c ? __devices_12fc
102d391c ? __devices_12fd
102d391c ? __devices_12fe
102d391c ? __devices_12ff
102d391c ? __devices_1300
102d391c ? __devices_1302
102d391c ? __devices_1303
102d391c ? __devices_1304
102d391c ? __devices_1305
102d391c ? __devices_1306
102d391c ? __devices_1307
102d3a34 ? __devices_1308
102d3a3c ? __devices_1309
102d3a3c ? __devices_130a
102d3a3c ? __devices_130b
102d3a3c ? __devices_130c
102d3a3c ? __devices_130d
102d3a3c ? __devices_130e
102d3a3c ? __devices_130f
102d3a3c ? __devices_1310
102d3a3c ? __devices_1311
102d3a3c ? __devices_1312
102d3a3c ? __devices_1313
102d3a3c ? __devices_1316
102d3a3c ? __devices_1317
102d3a3c ? __devices_1318
102d3a44 ? __devices_1319
102d3a64 ? __devices_131a
102d3a64 ? __devices_131c
102d3a64 ? __devices_131d
102d3a64 ? __devices_131e
102d3a64 ? __devices_131f
102d3b8c ? __devices_1320
102d3b8c ? __devices_1321
102d3b8c ? __devices_1322
102d3b8c ? __devices_1323
102d3b8c ? __devices_1324
102d3b8c ? __devices_1325
102d3b8c ? __devices_1326
102d3b8c ? __devices_1327
102d3b8c ? __devices_1328
102d3b8c ? __devices_1329
102d3b8c ? __devices_132a
102d3b8c ? __devices_132b
102d3b8c ? __devices_132c
102d3b8c ? __devices_132d
102d3b8c ? __devices_1330
102d3b8c ? __devices_1331
102d3b8c ? __devices_1332
102d3b8c ? __devices_1334
102d3b8c ? __devices_1335
102d3b8c ? __devices_1337
102d3b8c ? __devices_1338
102d3b8c ? __devices_133a
102d3b8c ? __devices_133b
102d3b8c ? __devices_133c
102d3b8c ? __devices_133d
102d3b8c ? __devices_133e
102d3b8c ? __devices_133f
102d3b8c ? __devices_1340
102d3b8c ? __devices_1341
102d3b8c ? __devices_1342
102d3b8c ? __devices_1343
102d3b8c ? __devices_1344
102d3b8c ? __devices_1345
102d3b8c ? __devices_1347
102d3b8c ? __devices_1349
102d3b8c ? __devices_134a
102d3b9c ? __devices_134b
102d3b9c ? __devices_134c
102d3b9c ? __devices_134d
102d3bdc ? __devices_134e
102d3bdc ? __devices_134f
102d3bdc ? __devices_1350
102d3bdc ? __devices_1351
102d3bdc ? __devices_1353
102d3bdc ? __devices_1354
102d3bdc ? __devices_1355
102d3bdc ? __devices_1356
102d3bdc ? __devices_1359
102d3bdc ? __devices_135a
102d3bdc ? __devices_135b
102d3bdc ? __devices_135c
102d3bdc ? __devices_135d
102d3bdc ? __devices_135e
102d3c14 ? __devices_135f
102d3c14 ? __devices_1360
102d3c14 ? __devices_1361
102d3c14 ? __devices_1362
102d3c14 ? __devices_1363
102d3c14 ? __devices_1364
102d3c14 ? __devices_1365
102d3c14 ? __devices_1366
102d3c14 ? __devices_1367
102d3c14 ? __devices_1368
102d3c14 ? __devices_1369
102d3c14 ? __devices_136a
102d3c14 ? __devices_136b
102d3c14 ? __devices_136c
102d3c14 ? __devices_136d
102d3c14 ? __devices_136f
102d3c14 ? __devices_1370
102d3c14 ? __devices_1371
102d3c14 ? __devices_1373
102d3c14 ? __devices_1374
102d3c14 ? __devices_1375
102d3c14 ? __devices_1376
102d3c14 ? __devices_1377
102d3c14 ? __devices_1378
102d3c14 ? __devices_1379
102d3c14 ? __devices_137a
102d3c14 ? __devices_137b
102d3c14 ? __devices_137c
102d3c14 ? __devices_137d
102d3c14 ? __devices_137e
102d3c14 ? __devices_137f
102d3c14 ? __devices_1380
102d3c14 ? __devices_1381
102d3c14 ? __devices_1382
102d3c14 ? __devices_1383
102d3c14 ? __devices_1384
102d3c14 ? __devices_1385
102d3c1c ? __devices_1386
102d3c1c ? __devices_1387
102d3c1c ? __devices_1388
102d3c1c ? __devices_1389
102d3c24 ? __devices_138a
102d3c24 ? __devices_138b
102d3c24 ? __devices_138c
102d3c24 ? __devices_138d
102d3c24 ? __devices_138e
102d3c24 ? __devices_138f
102d3c24 ? __devices_1390
102d3c24 ? __devices_1391
102d3c24 ? __devices_1392
102d3c24 ? __devices_1393
102d3c24 ? __devices_1394
102d3c24 ? __devices_1395
102d3c24 ? __devices_1396
102d3c24 ? __devices_1397
102d3c2c ? __devices_1398
102d3c2c ? __devices_1399
102d3c2c ? __devices_139a
102d3c2c ? __devices_139b
102d3c2c ? __devices_139c
102d3c2c ? __devices_139d
102d3c2c ? __devices_139e
102d3c2c ? __devices_139f
102d3c2c ? __devices_13a0
102d3c2c ? __devices_13a1
102d3c2c ? __devices_13a2
102d3c2c ? __devices_13a3
102d3c2c ? __devices_13a4
102d3c2c ? __devices_13a5
102d3c2c ? __devices_13a6
102d3c2c ? __devices_13a7
102d3c2c ? __devices_13a8
102d3c2c ? __devices_13a9
102d3c2c ? __devices_13aa
102d3c2c ? __devices_13ab
102d3c2c ? __devices_13ac
102d3c2c ? __devices_13ad
102d3c2c ? __devices_13ae
102d3c2c ? __devices_13af
102d3c2c ? __devices_13b0
102d3c2c ? __devices_13b1
102d3c2c ? __devices_13b2
102d3c2c ? __devices_13b3
102d3c2c ? __devices_13b4
102d3c2c ? __devices_13b5
102d3c2c ? __devices_13b6
102d3c2c ? __devices_13b7
102d3c2c ? __devices_13b8
102d3c2c ? __devices_13b9
102d3c2c ? __devices_13ba
102d3c2c ? __devices_13bb
102d3c2c ? __devices_13bc
102d3c2c ? __devices_13bd
102d3c2c ? __devices_13be
102d3c2c ? __devices_13bf
102d3c2c ? __devices_13c0
102d3c34 ? __devices_13c1
102d3c3c ? __devices_13c2
102d3c3c ? __devices_13c3
102d3c3c ? __devices_13c4
102d3c3c ? __devices_13c5
102d3c3c ? __devices_13c6
102d3c3c ? __devices_13c7
102d3c3c ? __devices_13c8
102d3c3c ? __devices_13c9
102d3c3c ? __devices_13ca
102d3c3c ? __devices_13cb
102d3c3c ? __devices_13cc
102d3c3c ? __devices_13cd
102d3c3c ? __devices_13ce
102d3c3c ? __devices_13cf
102d3c3c ? __devices_13d0
102d3c3c ? __devices_13d1
102d3c3c ? __devices_13d2
102d3c3c ? __devices_13d3
102d3c3c ? __devices_13d4
102d3c3c ? __devices_13d5
102d3c3c ? __devices_13d6
102d3c3c ? __devices_13d7
102d3c3c ? __devices_13d8
102d3c3c ? __devices_13d9
102d3c3c ? __devices_13da
102d3c3c ? __devices_13db
102d3c3c ? __devices_13dc
102d3c3c ? __devices_13dd
102d3c3c ? __devices_13de
102d3c3c ? __devices_13df
102d3c44 ? __devices_13e0
102d3c44 ? __devices_13e1
102d3c44 ? __devices_13e2
102d3c44 ? __devices_13e3
102d3c44 ? __devices_13e4
102d3c44 ? __devices_13e5
102d3c44 ? __devices_13e6
102d3c44 ? __devices_13e7
102d3c44 ? __devices_13e8
102d3c44 ? __devices_13e9
102d3c44 ? __devices_13ea
102d3c44 ? __devices_13eb
102d3c44 ? __devices_13ec
102d3c44 ? __devices_13ed
102d3c44 ? __devices_13ee
102d3c44 ? __devices_13ef
102d3c44 ? __devices_13f0
102d3c44 ? __devices_13f1
102d3c44 ? __devices_13f2
102d3c44 ? __devices_13f3
102d3c44 ? __devices_13f4
102d3c44 ? __devices_13f5
102d3c44 ? __devices_13f6
102d3c64 ? __devices_13f7
102d3c64 ? __devices_13f8
102d3c64 ? __devices_13f9
102d3c64 ? __devices_13fa
102d3c64 ? __devices_13fb
102d3c64 ? __devices_13fc
102d3c64 ? __devices_13fd
102d3c64 ? __devices_13fe
102d3c64 ? __devices_13ff
102d3c64 ? __devices_1400
102d3c64 ? __devices_1401
102d3c64 ? __devices_1402
102d3c64 ? __devices_1403
102d3c64 ? __devices_1404
102d3c64 ? __devices_1405
102d3c64 ? __devices_1406
102d3c64 ? __devices_1407
102d3c84 ? __devices_1408
102d3c84 ? __devices_1409
102d3c84 ? __devices_140a
102d3c84 ? __devices_140b
102d3c84 ? __devices_140c
102d3c84 ? __devices_140d
102d3c84 ? __devices_140e
102d3c84 ? __devices_140f
102d3c84 ? __devices_1410
102d3c84 ? __devices_1411
102d3c84 ? __devices_1412
102d3c8c ? __devices_1413
102d3c8c ? __devices_1414
102d3c8c ? __devices_1415
102d3c8c ? __devices_1416
102d3c8c ? __devices_1417
102d3c8c ? __devices_1418
102d3c8c ? __devices_1419
102d3c8c ? __devices_141a
102d3c8c ? __devices_141b
102d3c8c ? __devices_141d
102d3c8c ? __devices_141e
102d3c8c ? __devices_141f
102d3c8c ? __devices_1420
102d3c8c ? __devices_1421
102d3c8c ? __devices_1422
102d3c8c ? __devices_1423
102d3c8c ? __devices_1424
102d3c8c ? __devices_1425
102d3c8c ? __devices_1426
102d3c8c ? __devices_1427
102d3c8c ? __devices_1428
102d3c8c ? __devices_1429
102d3c8c ? __devices_142a
102d3c8c ? __devices_142b
102d3c8c ? __devices_142c
102d3c8c ? __devices_142d
102d3c8c ? __devices_142e
102d3c8c ? __devices_142f
102d3c8c ? __devices_1430
102d3c8c ? __devices_1431
102d3c8c ? __devices_1432
102d3c8c ? __devices_1433
102d3c8c ? __devices_1435
102d3c8c ? __devices_1436
102d3c8c ? __devices_1437
102d3c8c ? __devices_1438
102d3c8c ? __devices_1439
102d3c8c ? __devices_143a
102d3c8c ? __devices_143b
102d3c8c ? __devices_143c
102d3c8c ? __devices_143d
102d3c8c ? __devices_143e
102d3c8c ? __devices_143f
102d3c8c ? __devices_1440
102d3c8c ? __devices_1441
102d3c8c ? __devices_1442
102d3c8c ? __devices_1443
102d3c8c ? __devices_1444
102d3c8c ? __devices_1445
102d3c8c ? __devices_1446
102d3c8c ? __devices_1447
102d3c8c ? __devices_1448
102d3c8c ? __devices_1449
102d3c8c ? __devices_144a
102d3cdc ? __devices_144b
102d3cdc ? __devices_144c
102d3cdc ? __devices_144d
102d3cdc ? __devices_144e
102d3cdc ? __devices_144f
102d3cdc ? __devices_1450
102d3cdc ? __devices_1451
102d3cdc ? __devices_1453
102d3cdc ? __devices_1454
102d3cdc ? __devices_1455
102d3cdc ? __devices_1456
102d3cdc ? __devices_1457
102d3cdc ? __devices_1458
102d3cdc ? __devices_1459
102d3cdc ? __devices_145a
102d3cdc ? __devices_145b
102d3cdc ? __devices_145c
102d3cdc ? __devices_145d
102d3cdc ? __devices_145e
102d3cdc ? __devices_145f
102d3ce4 ? __devices_1460
102d3ce4 ? __devices_1461
102d3ce4 ? __devices_1462
102d3ce4 ? __devices_1463
102d3ce4 ? __devices_1464
102d3ce4 ? __devices_1465
102d3ce4 ? __devices_1466
102d3ce4 ? __devices_1467
102d3ce4 ? __devices_1468
102d3ce4 ? __devices_1469
102d3ce4 ? __devices_146a
102d3ce4 ? __devices_146b
102d3ce4 ? __devices_146c
102d3ce4 ? __devices_146d
102d3ce4 ? __devices_146e
102d3ce4 ? __devices_146f
102d3ce4 ? __devices_1470
102d3ce4 ? __devices_1471
102d3ce4 ? __devices_1472
102d3ce4 ? __devices_1473
102d3ce4 ? __devices_1474
102d3ce4 ? __devices_1475
102d3ce4 ? __devices_1476
102d3ce4 ? __devices_1477
102d3ce4 ? __devices_1478
102d3ce4 ? __devices_1479
102d3ce4 ? __devices_147a
102d3ce4 ? __devices_147b
102d3ce4 ? __devices_147c
102d3ce4 ? __devices_147d
102d3ce4 ? __devices_147e
102d3ce4 ? __devices_147f
102d3ce4 ? __devices_1480
102d3ce4 ? __devices_1481
102d3ce4 ? __devices_1482
102d3ce4 ? __devices_1483
102d3ce4 ? __devices_1484
102d3ce4 ? __devices_1485
102d3ce4 ? __devices_1486
102d3ce4 ? __devices_1487
102d3ce4 ? __devices_1488
102d3ce4 ? __devices_1489
102d3ce4 ? __devices_148a
102d3ce4 ? __devices_148b
102d3ce4 ? __devices_148c
102d3ce4 ? __devices_148d
102d3ce4 ? __devices_148e
102d3ce4 ? __devices_148f
102d3ce4 ? __devices_1490
102d3ce4 ? __devices_1491
102d3ce4 ? __devices_1492
102d3ce4 ? __devices_1493
102d3ce4 ? __devices_1494
102d3ce4 ? __devices_1495
102d3ce4 ? __devices_1496
102d3ce4 ? __devices_1497
102d3ce4 ? __devices_1498
102d3ce4 ? __devices_1499
102d3ce4 ? __devices_149a
102d3ce4 ? __devices_149b
102d3ce4 ? __devices_149c
102d3ce4 ? __devices_149d
102d3ce4 ? __devices_149e
102d3ce4 ? __devices_149f
102d3ce4 ? __devices_14a0
102d3ce4 ? __devices_14a1
102d3ce4 ? __devices_14a2
102d3ce4 ? __devices_14a3
102d3ce4 ? __devices_14a4
102d3ce4 ? __devices_14a5
102d3ce4 ? __devices_14a6
102d3ce4 ? __devices_14a7
102d3ce4 ? __devices_14a8
102d3ce4 ? __devices_14a9
102d3ce4 ? __devices_14aa
102d3ce4 ? __devices_14ab
102d3ce4 ? __devices_14ac
102d3ce4 ? __devices_14ad
102d3ce4 ? __devices_14ae
102d3ce4 ? __devices_14af
102d3ce4 ? __devices_14b0
102d3ce4 ? __devices_14b1
102d3ce4 ? __devices_14b2
102d3ce4 ? __devices_14b3
102d3cec ? __devices_14b4
102d3cec ? __devices_14b5
102d3cec ? __devices_14b6
102d3cec ? __devices_14b7
102d3cf4 ? __devices_14b8
102d3cf4 ? __devices_14b9
102d3cfc ? __devices_14ba
102d3cfc ? __devices_14bb
102d3cfc ? __devices_14bc
102d3cfc ? __devices_14bd
102d3cfc ? __devices_14be
102d3cfc ? __devices_14bf
102d3cfc ? __devices_14c0
102d3cfc ? __devices_14c1
102d3cfc ? __devices_14c2
102d3cfc ? __devices_14c3
102d3cfc ? __devices_14c4
102d3cfc ? __devices_14c5
102d3cfc ? __devices_14c6
102d3cfc ? __devices_14c7
102d3cfc ? __devices_14c8
102d3cfc ? __devices_14c9
102d3cfc ? __devices_14ca
102d3cfc ? __devices_14cb
102d3cfc ? __devices_14cc
102d3cfc ? __devices_14cd
102d3cfc ? __devices_14ce
102d3cfc ? __devices_14cf
102d3cfc ? __devices_14d0
102d3cfc ? __devices_14d1
102d3cfc ? __devices_14d2
102d3cfc ? __devices_14d3
102d3cfc ? __devices_14d4
102d3cfc ? __devices_14d5
102d3cfc ? __devices_14d6
102d3cfc ? __devices_14d7
102d3cfc ? __devices_14d8
102d3cfc ? __devices_14d9
102d3cfc ? __devices_14da
102d3cfc ? __devices_14db
102d3d04 ? __devices_14dc
102d3d54 ? __devices_14dd
102d3d54 ? __devices_14de
102d3d54 ? __devices_14df
102d3d54 ? __devices_14e1
102d3d54 ? __devices_14e2
102d3d54 ? __devices_14e3
102d3d54 ? __devices_14e4
102d3d54 ? __devices_14e5
102d3d54 ? __devices_14e6
102d3d54 ? __devices_14e7
102d3d54 ? __devices_14e8
102d3d54 ? __devices_14e9
102d3d54 ? __devices_14ea
102d3d54 ? __devices_14eb
102d3d54 ? __devices_14ec
102d3d54 ? __devices_14ed
102d3d54 ? __devices_14ee
102d3d54 ? __devices_14ef
102d3d54 ? __devices_14f0
102d3d54 ? __devices_14f1
102d3da4 ? __devices_14f2
102d3da4 ? __devices_14f3
102d3da4 ? __devices_14f4
102d3da4 ? __devices_14f5
102d3da4 ? __devices_14f6
102d3da4 ? __devices_14f7
102d3da4 ? __devices_14f8
102d3da4 ? __devices_14f9
102d3da4 ? __devices_14fa
102d3da4 ? __devices_14fb
102d3da4 ? __devices_14fc
102d3da4 ? __devices_14fd
102d3da4 ? __devices_14fe
102d3da4 ? __devices_14ff
102d3da4 ? __devices_1500
102d3da4 ? __devices_1501
102d3da4 ? __devices_1502
102d3da4 ? __devices_1503
102d3da4 ? __devices_1504
102d3da4 ? __devices_1505
102d3da4 ? __devices_1506
102d3da4 ? __devices_1507
102d3dec ? __devices_1508
102d3dec ? __devices_1509
102d3dec ? __devices_150a
102d3dec ? __devices_150b
102d3dec ? __devices_150c
102d3dec ? __devices_150d
102d3dec ? __devices_150e
102d3dec ? __devices_150f
102d3dec ? __devices_1510
102d3dec ? __devices_1511
102d3dec ? __devices_1512
102d3dec ? __devices_1513
102d3dec ? __devices_1514
102d3dec ? __devices_1515
102d3dec ? __devices_1516
102d3dec ? __devices_1517
102d3dec ? __devices_1518
102d3dec ? __devices_1519
102d3dec ? __devices_151a
102d3e04 ? __devices_151b
102d3e04 ? __devices_151c
102d3e04 ? __devices_151d
102d3e04 ? __devices_151e
102d3e04 ? __devices_151f
102d3e04 ? __devices_1520
102d3e04 ? __devices_1521
102d3e04 ? __devices_1522
102d3e04 ? __devices_1523
102d3e04 ? __devices_1524
102d3e04 ? __devices_1525
102d3e04 ? __devices_1526
102d3e04 ? __devices_1527
102d3e04 ? __devices_1528
102d3e04 ? __devices_1529
102d3e04 ? __devices_152a
102d3e04 ? __devices_152b
102d3e04 ? __devices_152c
102d3e04 ? __devices_152d
102d3e04 ? __devices_152e
102d3e04 ? __devices_152f
102d3e04 ? __devices_1530
102d3e04 ? __devices_1531
102d3e04 ? __devices_1532
102d3e04 ? __devices_1533
102d3e04 ? __devices_1534
102d3e04 ? __devices_1535
102d3e04 ? __devices_1537
102d3e04 ? __devices_1538
102d3e04 ? __devices_1539
102d3e04 ? __devices_153a
102d3e04 ? __devices_153b
102d3e04 ? __devices_153c
102d3e04 ? __devices_153d
102d3e04 ? __devices_153e
102d3e04 ? __devices_153f
102d3e04 ? __devices_1540
102d3e04 ? __devices_1541
102d3e04 ? __devices_1542
102d3e04 ? __devices_1543
102d3e04 ? __devices_1544
102d3e04 ? __devices_1545
102d3e04 ? __devices_1546
102d3e04 ? __devices_1547
102d3e04 ? __devices_1548
102d3e04 ? __devices_1549
102d3e04 ? __devices_154a
102d3e04 ? __devices_154b
102d3e04 ? __devices_154c
102d3e04 ? __devices_154d
102d3e04 ? __devices_154e
102d3e04 ? __devices_154f
102d3e04 ? __devices_1550
102d3e04 ? __devices_1551
102d3e04 ? __devices_1552
102d3e04 ? __devices_1553
102d3e04 ? __devices_1554
102d3e04 ? __devices_1555
102d3e04 ? __devices_1556
102d3e04 ? __devices_1557
102d3e04 ? __devices_1558
102d3e04 ? __devices_1559
102d3e04 ? __devices_155a
102d3e04 ? __devices_155b
102d3e04 ? __devices_155c
102d3e04 ? __devices_155d
102d3e04 ? __devices_155e
102d3e04 ? __devices_155f
102d3e04 ? __devices_1560
102d3e04 ? __devices_1561
102d3e04 ? __devices_1562
102d3e04 ? __devices_1563
102d3e04 ? __devices_1564
102d3e04 ? __devices_1565
102d3e04 ? __devices_1566
102d3e04 ? __devices_1567
102d3e04 ? __devices_1568
102d3e04 ? __devices_1569
102d3e04 ? __devices_156a
102d3e04 ? __devices_156b
102d3e04 ? __devices_156c
102d3e04 ? __devices_156d
102d3e04 ? __devices_156e
102d3e04 ? __devices_156f
102d3e04 ? __devices_1570
102d3e04 ? __devices_1571
102d3e9c ? __devices_1572
102d3e9c ? __devices_1573
102d3e9c ? __devices_1574
102d3e9c ? __devices_1575
102d3e9c ? __devices_1576
102d3e9c ? __devices_1578
102d3e9c ? __devices_1579
102d3e9c ? __devices_157a
102d3e9c ? __devices_157b
102d3e9c ? __devices_157c
102d3ea4 ? __devices_157d
102d3ea4 ? __devices_157e
102d3ea4 ? __devices_157f
102d3ea4 ? __devices_1580
102d3ea4 ? __devices_1581
102d3ea4 ? __devices_1582
102d3ea4 ? __devices_1583
102d3ea4 ? __devices_1584
102d3ea4 ? __devices_1585
102d3ea4 ? __devices_1586
102d3ea4 ? __devices_1587
102d3ea4 ? __devices_1588
102d3ea4 ? __devices_1589
102d3ea4 ? __devices_158a
102d3ea4 ? __devices_158b
102d3ea4 ? __devices_158c
102d3ea4 ? __devices_158d
102d3ea4 ? __devices_158e
102d3ea4 ? __devices_158f
102d3ea4 ? __devices_1590
102d3ea4 ? __devices_1591
102d3ea4 ? __devices_1592
102d3ee4 ? __devices_1593
102d3ee4 ? __devices_1594
102d3ee4 ? __devices_1595
102d3ee4 ? __devices_1596
102d3ee4 ? __devices_1597
102d3ee4 ? __devices_1598
102d3ee4 ? __devices_1599
102d3ee4 ? __devices_159a
102d3ee4 ? __devices_159b
102d3ee4 ? __devices_159c
102d3ee4 ? __devices_159d
102d3ee4 ? __devices_159e
102d3ee4 ? __devices_159f
102d3ee4 ? __devices_15a0
102d3ee4 ? __devices_15a1
102d3ee4 ? __devices_15a2
102d3ee4 ? __devices_15a3
102d3ee4 ? __devices_15a4
102d3ee4 ? __devices_15a5
102d3ee4 ? __devices_15a6
102d3ee4 ? __devices_15a7
102d3ee4 ? __devices_15a8
102d3ee4 ? __devices_15aa
102d3ee4 ? __devices_15ab
102d3ee4 ? __devices_15ac
102d3ee4 ? __devices_15ad
102d3eec ? __devices_15ae
102d3eec ? __devices_15b0
102d3eec ? __devices_15b1
102d3eec ? __devices_15b2
102d3eec ? __devices_15b3
102d3eec ? __devices_15b4
102d3eec ? __devices_15b5
102d3eec ? __devices_15b6
102d3eec ? __devices_15b7
102d3eec ? __devices_15b8
102d3eec ? __devices_15b9
102d3eec ? __devices_15ba
102d3eec ? __devices_15bb
102d3eec ? __devices_15bc
102d3eec ? __devices_15bd
102d3eec ? __devices_15be
102d3eec ? __devices_15bf
102d3eec ? __devices_15c0
102d3eec ? __devices_15c1
102d3eec ? __devices_15c2
102d3eec ? __devices_15c3
102d3eec ? __devices_15c4
102d3eec ? __devices_15c5
102d3eec ? __devices_15c6
102d3eec ? __devices_15c7
102d3eec ? __devices_15c8
102d3eec ? __devices_15c9
102d3eec ? __devices_15ca
102d3eec ? __devices_15cb
102d3eec ? __devices_15cc
102d3eec ? __devices_15cd
102d3eec ? __devices_15ce
102d3eec ? __devices_15cf
102d3eec ? __devices_15d1
102d3eec ? __devices_15d2
102d3eec ? __devices_15d3
102d3eec ? __devices_15d4
102d3eec ? __devices_15d5
102d3eec ? __devices_15d6
102d3eec ? __devices_15d7
102d3eec ? __devices_15d8
102d3eec ? __devices_15d9
102d3eec ? __devices_15da
102d3eec ? __devices_15db
102d3eec ? __devices_15dc
102d3ef4 ? __devices_15dd
102d3ef4 ? __devices_15de
102d3ef4 ? __devices_15df
102d3ef4 ? __devices_15e0
102d3ef4 ? __devices_15e1
102d3ef4 ? __devices_15e2
102d3ef4 ? __devices_15e3
102d3ef4 ? __devices_15e4
102d3ef4 ? __devices_15e5
102d3ef4 ? __devices_15e6
102d3ef4 ? __devices_15e7
102d3ef4 ? __devices_15e8
102d3ef4 ? __devices_15e9
102d3ef4 ? __devices_15ea
102d3ef4 ? __devices_15eb
102d3ef4 ? __devices_15ec
102d3ef4 ? __devices_15ed
102d3ef4 ? __devices_15ee
102d3ef4 ? __devices_15ef
102d3ef4 ? __devices_15f0
102d3ef4 ? __devices_15f1
102d3ef4 ? __devices_15f2
102d3ef4 ? __devices_15f3
102d3ef4 ? __devices_15f4
102d3ef4 ? __devices_15f5
102d3ef4 ? __devices_15f6
102d3ef4 ? __devices_15f7
102d3ef4 ? __devices_15f8
102d3ef4 ? __devices_15f9
102d3ef4 ? __devices_15fa
102d3ef4 ? __devices_15fb
102d3ef4 ? __devices_15fc
102d3ef4 ? __devices_15fd
102d3ef4 ? __devices_15fe
102d3ef4 ? __devices_15ff
102d3ef4 ? __devices_1600
102d3ef4 ? __devices_1601
102d3ef4 ? __devices_1602
102d3ef4 ? __devices_1603
102d3ef4 ? __devices_1604
102d3ef4 ? __devices_1605
102d3ef4 ? __devices_1606
102d3ef4 ? __devices_1607
102d3ef4 ? __devices_1608
102d3ef4 ? __devices_1609
102d3ef4 ? __devices_1668
102d3ef4 ? __devices_1813
102d3ef4 ? __devices_1a08
102d3efc ? __devices_1b13
102d3efc ? __devices_1c1c
102d3f04 ? __devices_1d44
102d3f0c ? __devices_1de1
102d3f2c ? __devices_2001
102d3f2c ? __devices_21c3
102d3f2c ? __devices_2348
102d3f34 ? __devices_2646
102d3f34 ? __devices_270b
102d3f34 ? __devices_270f
102d3f34 ? __devices_2711
102d3f34 ? __devices_2a15
102d3f34 ? __devices_3000
102d3f34 ? __devices_3142
102d3f34 ? __devices_3388
102d3f4c ? __devices_3411
102d3f4c ? __devices_3513
102d3f4c ? __devices_38ef
102d3f4c ? __devices_3d3d
102d3fbc ? __devices_4005
102d4024 ? __devices_4033
102d4024 ? __devices_4143
102d4024 ? __devices_416c
102d4024 ? __devices_4444
102d4024 ? __devices_4468
102d4024 ? __devices_4594
102d4024 ? __devices_45fb
102d4024 ? __devices_4680
102d4024 ? __devices_4843
102d4024 ? __devices_4916
102d402c ? __devices_4943
102d402c ? __devices_4978
102d402c ? __devices_4a14
102d4034 ? __devices_4b10
102d4034 ? __devices_4c48
102d4034 ? __devices_4ca1
102d4034 ? __devices_4d51
102d403c ? __devices_4d54
102d403c ? __devices_4ddc
102d403c ? __devices_5053
102d4044 ? __devices_5136
102d4044 ? __devices_5143
102d4044 ? __devices_5145
102d404c ? __devices_5301
102d4054 ? __devices_5333
102d424c ? __devices_544c
102d424c ? __devices_5455
102d4254 ? __devices_5519
102d4254 ? __devices_5555
102d425c ? __devices_5700
102d425c ? __devices_6356
102d425c ? __devices_6374
102d4264 ? __devices_6409
102d4264 ? __devices_6666
102d4274 ? __devices_7604
102d4274 ? __devices_7bde
102d4274 ? __devices_7fed
102d4274 ? __devices_8008
102d4284 ? __devices_8086
102d4634 ? __devices_8800
102d463c ? __devices_8866
102d463c ? __devices_8888
102d463c ? __devices_8e0e
102d463c ? __devices_8e2e
102d4644 ? __devices_9004
102d488c ? __devices_9005
102d492c ? __devices_907f
102d4934 ? __devices_919a
102d4934 ? __devices_9412
102d493c ? __devices_9699
102d4944 ? __devices_a0a0
102d4944 ? __devices_a0f1
102d4944 ? __devices_a200
102d4944 ? __devices_a259
102d4944 ? __devices_a25b
102d4944 ? __devices_a304
102d4944 ? __devices_a727
102d4944 ? __devices_aa42
102d4944 ? __devices_ac1e
102d4944 ? __devices_b1b3
102d4944 ? __devices_c001
102d4944 ? __devices_c0a9
102d4944 ? __devices_c0de
102d4944 ? __devices_c0fe
102d4944 ? __devices_ca50
102d4944 ? __devices_cafe
102d4944 ? __devices_cccc
102d4944 ? __devices_d4d4
102d494c ? __devices_d84d
102d494c ? __devices_e000
102d4954 ? __devices_e159
102d495c ? __devices_e4bf
102d495c ? __devices_ea01
102d495c ? __devices_eabb
102d495c ? __devices_ecc0
102d495c ? __devices_edd8
102d497c ? __devices_fa57
102d497c ? __devices_feda
102d497c ? __devices_fffe
102d4984 ? __devices_ffff
102d4984 ? pci_vendor_list
102d9574 ? raid_setup_args
102d957c ? __setup_str_raid_setup
102d9584 ? __setup_str_netdev_boot_setup
102d958c ? __setup_str_eth_setup
102d9594 ? user_dev_name
102d95a4 ? ic_myaddr
102d95a8 ? ic_servaddr
102d95ac ? ic_gateway
102d95b0 ? ic_netmask
102d95b4 ? ic_enable
102d95b8 ? ic_host_name_set
102d95bc ? ic_set_manually
102d95c0 ? root_server_addr
102d95c4 ? root_server_path
102d96c4 ? ic_proto_enabled
102d96c8 ? ic_got_reply
102d96cc ? ic_proto_have_if
102d96d0 ? ic_first_dev
102d96d4 ? ic_dev
102d96d8 ? bootp_packet_type
102d96ec ? __setup_str_ip_auto_config_setup
102d96f0 ? __setup_str_nfsaddrs_config_setup
102d9700 ? __setup_profile_setup
102d9700 A __setup_start
102d9708 ? __setup_root_dev_setup
102d9710 ? __setup_readonly
102d9718 ? __setup_readwrite
102d9720 ? __setup_debug_kernel
102d9728 ? __setup_quiet_kernel
102d9730 ? __setup_panic_setup
102d9738 ? __setup_console_setup
102d9740 ? __setup_reserve_setup
102d9748 ? __setup_setup_mem_frac
102d9750 ? __setup_nfs_root_setup
102d9758 ? __setup_no_initrd
102d9760 ? __setup_ramdisk_start_setup
102d9768 ? __setup_load_ramdisk
102d9770 ? __setup_prompt_ramdisk
102d9778 ? __setup_ramdisk_size
102d9780 ? __setup_ramdisk_size2
102d9788 ? __setup_ramdisk_blocksize
102d9790 ? __setup_parport_setup
102d9798 ? __setup_scsi_logging_setup
102d97a0 ? __setup_scsi_setup
102d97a8 ? __setup_scsi_luns_setup
102d97b0 ? __setup_sym53c8xx_setup
102d97b8 ? __setup_param_setup
102d97c0 ? __setup_ncr53c8xx_setup
102d97c8 ? __setup_st_setup
102d97d0 ? __setup_sg_def_reserved_size_setup
102d97d8 ? __setup_pci_setup
102d97e0 ? __setup_raid_setup
102d97e8 ? __setup_netdev_boot_setup
102d97f0 ? __setup_eth_setup
102d97f8 ? __setup_ip_auto_config_setup
102d9800 ? __setup_nfsaddrs_config_setup
102d9808 ? __initcall_pcxl_dma_init
102d9808 A __initcall_start
102d9808 A __setup_end
102d980c ? __initcall_uid_cache_init
102d9810 ? __initcall_kmem_cpucache_init
102d9814 ? __initcall_kswapd_init
102d9818 ? __initcall_init_shmem_fs
102d981c ? __initcall_bdflush_init
102d9820 ? __initcall_init_pipe_fs
102d9824 ? __initcall_fasync_init
102d9828 ? __initcall_filelock_init
102d982c ? __initcall_dnotify_init
102d9830 ? __initcall_init_som_binfmt
102d9834 ? __initcall_init_script_binfmt
102d9838 ? __initcall_init_elf_binfmt
102d983c ? __initcall_init_proc_fs
102d9840 ? __initcall_partition_setup
102d9844 ? __initcall_init_ext2_fs
102d9848 ? __initcall_init_iso9660_fs
102d984c ? __initcall_rs_init
102d9850 ? __initcall_rtc_generic_init
102d9854 ? __initcall_tulip_init
102d9858 ? __initcall_parport_gsc_init_module
102d985c ? __initcall_init_scsi
102d9860 ? __initcall_init_this_scsi_driver
102d9864 ? __initcall_init_this_scsi_driver
102d9868 ? __initcall_init_this_scsi_driver
102d986c ? __initcall_init_st
102d9870 ? __initcall_init_sd
102d9874 ? __initcall_init_sr
102d9878 ? __initcall_init_sg
102d987c ? __initcall_cdrom_init
102d9880 ? __initcall_pci_proc_init
102d9884 ? __initcall_linear_init
102d9888 ? __initcall_raid0_init
102d988c ? __initcall_raid1_init
102d9890 ? __initcall_raid5_init
102d9894 ? __initcall_calibrate_xor_block
102d9898 ? __initcall_md_init
102d989c ? __initcall_inet_init
102d98a0 ? __initcall_ip_auto_config
102d98a4 ? __initcall_af_unix_init
102d98a8 A __init_end
102d98a8 A __initcall_end
102dc000 ? init_task_union
102de000 A _edata
102de000 b pdc_console_initialized
102de004 b max_pfn
102de008 b dirty_space_id
102df008 b space_id_index
102df040 b tod_data___0
102df048 b clocktick
102df04c b halftick
102df080 b posx___0
102df088 b iodc_retbuf___1
102df140 b iodc_dbuf___2
102e0140 b pdc_result
102e01c0 b pdc_result2
102e0240 b num_devices
102e0244 b pa_devices
102e1044 b pcxl_res_lock
102e1048 b pcxl_res_map
102e104c b pcxl_res_hint
102e1050 b pcxl_res_size
102e1080 B real_stack
102e3080 b save_cr_space
102e30c0 b parisc_pci_hba
102e3140 b def_sysrq_xlate
102e31c0 b lba_t32
102e31c4 b iosapic_list
102e31c8 b iosapic_lock
102e31cc b iosapic_count
102e31d0 b irt_cell
102e31d4 b irt_num_entry
102e31d8 b sba_list
102e31dc b sba_count
102e31e0 b ccio_list
102e31e4 b ccio_count
102e31e8 b cujo_iodc
102e3200 b buf___0
102e3600 b buf
102e3a00 b log_buf
102e7a00 b log_start
102e7a04 b logged_chars
102e7a08 b kmalloc_failed
102e7a40 b softirq_vec
102e7b40 b bh_base
102e7bc0 b reserve___1
102e7c30 b minolduid
102e7c34 b tv5
102e7e38 b tv4
102e803c b tv3
102e8240 b tv2
102e8444 b tv1
102e8c48 b timer_jiffies
102e8c4c b uid_cachep
102e8c50 b uidhash_table
102e9050 b sigqueue_cachep
102e9054 b reboot_notifier_list
102e9058 b keventd_running
102e905c b keventd_task
102e9060 b dummy_task
102e9074 b offslab_limit
102e9078 b cache_chain_sem
102e908c b contig_bootmem_data
102e90a0 b buffer___0
102e90c0 b buffer___1
102e90e0 b chrdevs
102e98d8 b bh_hash_mask
102e98dc b bh_hash_shift
102e98e0 b hash_table
102e98e4 b lru_list
102e98f4 b nr_buffers_type
102e9904 b size_buffers_type
102e9914 b unused_list
102e9918 b nr_unused_buffer_heads
102e991c b free_list
102e9954 b file_systems
102e9958 b unnamed_dev_in_use
102e9978 b buffer___0
102e9998 b bdev_hashtable
102e9b98 b bdev_cachep
102e9b9c b blkdevs
102ea394 b formats
102ea398 b pipe_mnt
102ea39c b fasync_cache
102ea3a0 b filelock_cache
102ea3a4 b dentry_cache
102ea3a8 b d_hash_mask
102ea3ac b d_hash_shift
102ea3b0 b dentry_hashtable
102ea3b4 b empty_aops___0
102ea3cc b empty_iops___1
102ea40c b empty_fops___2
102ea44c b last_ino___3
102ea450 b i_hash_mask
102ea454 b i_hash_shift
102ea458 b inode_hashtable
102ea45c b inode_cachep
102ea460 b kiobuf_cachep
102ea464 b dn_cache
102ea468 b proc_alloc_map
102ea668 b proc_tty_ldisc
102ea66c b proc_tty_driver
102ea670 b p___0
102ea674 b current_minor
102ea678 b error_buf
102eaa78 b nfs_rdata_cachep
102eaa7c b complain___0
102eaa80 b nfs_page_cachep
102eaa84 b nfs_wdata_cachep
102eaa88 b sillycounter___0
102eaa8c b nfs_deletes
102eaa90 b mnt_stats
102eaab8 b buf___0
102eab08 b nlm_blocked
102eab0c b buf___0
102eab5c b buf___0
102eabac b nlm_hosts
102eac2c b next_gc
102eac30 b nrhosts
102eac34 b buf___0
102eac84 b nlmsvc_users
102eac88 b nlmsvc_pid
102eac8c b nlmsvc_stats
102eacb0 b buf___0
102ead00 b nlm_blocked
102ead04 b buf___0
102ead54 b buf___0
102eada4 b buf___0
102eadf4 b nlm_files
102eae74 b buf___0
102eaec4 b nsm_stats
102eaeec b buf___0
102eaf3c b nlm_stats
102eaf64 b msg_ids
102eaf90 b sem_ids
102eafbc b used_sems
102eafc0 b shm_ids
102eafec b shm_tot
102eaff0 b request_cachep
102eaff4 b ro_bits
102ecfd4 b queue_ID___0
102ecfd8 b initrd_users
102ecfdc b rd_length
102ed01c b rd_hardsec
102ed05c b rd_blocksizes
102ed09c b rd_kbsize
102ed0dc b devfs_handle
102ed0e0 b rd_inode
102ed120 b inbuf
102ed124 b window
102ed128 b insize
102ed12c b inptr
102ed130 b outcnt
102ed134 b exit_code
102ed138 b bytes_out
102ed13c b crd_infp
102ed140 b crd_outfp
102ed144 b bb
102ed148 b bk
102ed14c b hufts
102ed150 b crc_32_tab
102ed550 b crc
102ed554 b nr_warns___2
102ed558 b dev_tty_driver
102ed614 b dev_syscons_driver
102ed6d0 b dev_ptmx_driver
102ed78c b dev_console_driver
102ed848 b raw_device_bindings
102edc48 b raw_device_inuse
102ee048 b raw_device_sector_size
102ee448 b raw_device_sector_bits
102ee848 b pty_driver
102ee904 b pty_slave_driver
102ee9c0 b pty_refcount
102ee9c4 b pty_table
102eedc4 b pty_termios
102ef1c4 b pty_termios_locked
102ef5c4 b ttyp_table
102ef9c4 b ttyp_termios
102efdc4 b ttyp_termios_locked
102f01c4 b pty_state
102f11c4 b ptm_table
102f15c4 b ptm_termios
102f19c4 b ptm_termios_locked
102f1dc4 b pts_table
102f21c4 b pts_termios
102f25c4 b pts_termios_locked
102f29c4 b ptm_state
102f39c4 b devfs_handle___0
102f39c8 b misc_minors
102f39d0 b last_scancode___1
102f39d4 b rekey_time___2
102f39d8 b count___3
102f39dc b secret___4
102f3a0c b rekey_time___5
102f3a10 b secret___6
102f3a40 b random_state
102f3a44 b sec_random_state
102f3a48 b batch_entropy_pool
102f3a4c b batch_entropy_credit
102f3a50 b batch_max
102f3a54 b batch_head
102f3a58 b batch_tail
102f3a5c b batch_tqueue
102f3a70 b keyboard_timer_state
102f3a80 b mouse_timer_state
102f3a90 b extract_timer_state
102f3aa0 b irq_timer_state
102f42a0 b blkdev_timer_state
102f469c b sysctl_poolsize
102f46a0 b min_read_thresh
102f46a4 b max_read_thresh
102f46a8 b min_write_thresh
102f46ac b max_write_thresh
102f46b0 b sysctl_bootid
102f46c0 b devfs_handle
102f46c4 b inv_translate
102f47c0 b dflt
102f47c4 b p___0
102f47c8 b old___1
102f47ca b oldx___2
102f47cc b oldy___3
102f47d0 b printing___5
102f47d4 b console_table
102f48d0 b console_termios
102f49cc b console_termios_locked
102f4ac8 b con_driver_map
102f4bc4 b printable
102f4bc8 b vesa_blank_mode
102f4bcc b vesa_off_interval
102f4bd0 b master_display_fg
102f4bd4 b scrollback_delta
102f4bd8 b console_timer
102f4bec b pm_con
102f4bf0 b softcursor_original
102f4bf4 b console_refcount
102f4bf8 b sel_end
102f4bfc b sel_buffer_lth
102f4c00 b sel_buffer
102f4c04 b last_strobe___0
102f4c08 b info___2
102f4c0c b info___3
102f4c10 b serial_driver
102f4ccc b callout_driver
102f4d88 b serial_refcount
102f4d8c b serial_timer
102f4da0 b IRQ_ports
102f55a0 b IRQ_timeout
102f5da0 b lsr_break_flag
102f5da4 b break_pressed
102f5da8 b serial_pci_board
102f5ee8 b serial_pci_board_idx
102f5eec b serial_table
102f5fec b serial_termios
102f60ec b serial_termios_locked
102f61ec b tmp_buf
102f61f0 b async_sercons
102f62ac b k_down
102f62b8 b key_down
102f62d8 b dead_key_next
102f62dc b diacr
102f62dd b rep
102f62e0 b ttytab
102f62e4 b tty
102f62e8 b sysrq_pressed
102f62ec b pm_kbd
102f62f0 b ledioctl
102f62f4 b ledptrs
102f6318 b lasi_psaux_keyb
102f631c b lasikbd_hpa
102f6320 b inited
102f6324 b prev_scancode___0
102f6328 b brk___1
102f632c b esc0___2
102f6330 b esc1___3
102f6334 b gen_uie_timer
102f6348 b did_version___0
102f634c b last_irq___2
102f6350 b multiport_cnt___3
102f6354 b full_duplex
102f6374 b options
102f6394 b mtu
102f63b4 b irqs
102f63b8 b port_from_cookie
102f6400 b serial_number
102f6404 b scsi_bh_queue_head
102f6408 b scsi_bh_queue_tail
102f640c b scsihosts
102f6410 b need_isa_bounce_buffers
102f6414 b f___0
102f6418 b hosts_tptr
102f6440 b hosts_tptr
102f6480 b iodc_data
102f64c0 b buffer_kbs
102f64c4 b write_threshold_kbs
102f64c8 b max_sg_segs
102f64cc b st_nbr_buffers
102f64d0 b modes_defined
102f64d4 b rscsi_disks
102f64d8 b sd_sizes
102f64dc b sd_blocksizes
102f64e0 b sd_hardsizes
102f64e4 b sd_registered
102f64e8 b sr_sizes
102f64ec b sr_blocksizes
102f64f0 b sr_hardsizes
102f64f4 b sr_registered
102f64f8 b banner_printed___0
102f64fc b cdrom_counter___1
102f6500 b initialized___2
102f6504 b debug
102f6508 b keeplocked
102f650c b autoeject
102f6510 b check_media_type
102f6514 b topCdromPtr
102f6518 b devfs_handle
102f651c b cdrom_sysctl_header
102f6520 b proc_bus_pci_dir
102f6524 b active_template
102f6528 b template_list
102f652c b pers
102f6548 b raid_table_header
102f654c b md_blocksizes
102f694c b md_hardsect_sizes
102f6d4c b md_maxreadahead
102f714c b md_recovery_thread
102f7150 b devfs_handle
102f7154 b sync_io
102f7554 b lasi_power_off_hpa
102f7558 b serial_line_nr
102f7560 b warned___0
102f7564 b net_families
102f75e4 b sock_mnt
102f75e8 b sk_cachep
102f75ec b skbuff_head_cache
102f75f0 b skb_head_pool
102f7630 b ifindex___1
102f7634 b ptype_base
102f7674 b dev_boot_setup
102f7774 b gifconf_list
102f77f4 b dst_garbage_list
102f77f8 b dst_gc_timer_expires
102f77fc b neigh_glbl_allocs
102f7800 b neigh_tables
102f7804 b last_msg___2
102f7808 b missed___3
102f7810 b buff___0
102f7824 b rover___0
102f7828 b last_gc___2
102f782c b rover___3
102f7830 b equilibrium___4
102f7834 b ip_fallback_id___7
102f7838 b rt_deadline
102f783c b rt_flush_timer
102f7850 b rt_periodic_timer
102f7864 b rt_hash_table
102f7868 b rt_hash_mask
102f786c b rt_hash_log
102f7870 b flush_delay
102f7874 b peer_cachep
102f7878 b peer_total
102f787c b ipq_hash
102f7980 b warntime___0
102f7988 b tcp_inode
102f7b60 b tcp_tw_death_row
102f7b80 b tcp_twcal_jiffie
102f7b84 b tcp_twcal_row
102f7c04 b complained___0
102f7c08 b dummy
102f7c0c b inetaddr_chain
102f7c10 b fib_info_list
102f7c14 b fn_hash_kmem
102f7c18 b fib_hash_zombies
102f7c1c b ic_bootp_xid
102f7c20 b unix_sysctl_header
102f7c24 b dummy___0
102f7c64 b rpc_task_id
102f7c68 b all_tasks
102f7c6c b rpciod_users
102f7c70 b rpciod_pid
102f7c74 b rpc_inhibit
102f7c78 b swap_buffer
102f8c78 b swap_buffer_used
102f8c7c b pmap_stats
102f8ca4 b sunrpc_table_header
102f8ca8 B rows
102f8cac B real_root_dev
102f8cb0 B cols
102f8cb4 B root_device_name
102f8cf4 B execute_command
102f8cf8 B Version_132096
102f8cfc B pm_power_off
102f8d00 B pcxl_dma_start
102f8d04 B empty_bad_page
102f8d08 B empty_zero_page
102f8d0c B vmalloc_start
102f8d10 B pmem_ranges
102f8d18 B npmem_ranges
102f8d1c B EISA_bus
102f8d20 B icache_stride
102f8d24 B saved_command_line
102f9124 B dcache_stride
102f9128 B cpu_data
102f916c B hppa_dma_ops
102f9170 B pci_bios
102f9174 B cache_info
102f91ec B boot_cpu_data
102f928c B split_tlb
102f9290 B pci_port
102f92c0 B avenrun
102f92cc B bh_task_vec
102f954c B time_offset
102f9550 B total_forks
102f9580 B tasklet_vec
102f95c0 B max_threads
102f95c4 B prof_shift
102f95c8 B nr_threads
102f95cc B last_pid
102f95d0 B panic_notifier_list
102f95d4 B nr_queued_signals
102f95d8 B pps_freq
102f95dc B wall_jiffies
102f95e0 B console_cmdline
102f9660 B prof_len
102f9680 B irq_stat
102f96c0 B sys_tz
102f96c8 B panic_timeout
102f9700 B tasklet_hi_vec
102f9740 B log_size
102f9744 B pps_offset
102f9748 B pps_jitcnt
102f974c B console_drivers
102f9750 B time_adjust_step
102f9754 B pps_stbcnt
102f9758 B files_cachep
102f975c B time_adj
102f9760 B xtime
102f9768 B time_adjust
102f976c B time_reftime
102f9770 B event
102f9774 B pidhash
102fa774 B time_phase
102fa778 B nr_running
102fa77c B jiffies
102fa780 B mm_cachep
102fa784 B pps_errcnt
102fa788 B kstat
102fc3bc B vm_area_cachep
102fc3c0 B sigact_cachep
102fc3c4 B pps_calcnt
102fc3c8 B prof_buffer
102fc3cc B fs_cachep
102fc3d0 B hardpps_ptr
102fc3d4 B memory_pressure
102fc3d8 B page_cluster
102fc3dc B kswapd_task
102fc3e0 B max_low_pfn
102fc3e4 B vmlist
102fc3e8 B nr_swapfiles
102fc3ec B high_memory
102fc3f0 B swap_cache_find_total
102fc3f4 B swap_cache_find_success
102fc3f8 B page_hash_bits
102fc3fc B pgdat_list
102fc400 B page_hash_table
102fc404 B highmem_start_page
102fc408 B nr_active_pages
102fc40c B num_physpages
102fc410 B sysctl_overcommit_memory
102fc414 B min_low_pfn
102fc418 B nr_inactive_dirty_pages
102fc41c B swap_cache_del_total
102fc420 B swap_info
102fc5e0 B max_mapnr
102fc5e4 B nr_swap_pages
102fc5e8 B active_list
102fc5f0 B inactive_dirty_list
102fc5f8 B mem_map
102fc5fc B swap_cache_add_total
102fc600 B filp_cachep
102fc604 B nr_free_dquots
102fc608 B proc_root_driver
102fc60c B nlm_grace_period
102fc610 B proc_root_fs
102fc614 B bh_cachep
102fc618 B nr_super_blocks
102fc61c B proc_mnt
102fc620 B dquot_cachep
102fc624 B nr_dquots
102fc628 B inodes_stat
102fc644 B max_dquots
102fc648 B proc_net
102fc64c B names_cachep
102fc650 B nlmsvc_ops
102fc654 B proc_root_kcore
102fc658 B nlmsvc_grace_period
102fc65c B ROOT_DEV
102fc660 B gendisk_head
102fc664 B proc_sys_root
102fc668 B nsm_local_state
102fc66c B nlmsvc_timeout
102fc670 B proc_bus
102fc674 B initrd_below_start_ok
102fc678 B max_sectors
102fca74 B rd_doload
102fca78 B rd_image_start
102fca7c B initrd_start
102fca80 B initrd_end
102fca84 B hardsect_size
102fce80 B max_readahead
102fd27c B blk_dev
10305df0 B blksize_size
103061ec B blk_size
103065e8 B read_ahead
103069e4 B console_blanked
103069e8 B vt_cons
10306ae4 B conswitchp
10306ae8 B ldiscs
10306ee8 B default_font_height
10306eec B last_console
10306ef0 B fg_console
10306ef4 B video_scan_lines
10306ef8 B tty_drivers
10306efc B emergency_sync_scheduled
10306f00 B ptm_driver
10306fbc B kbd_pt_regs
10306fc0 B tty_std_termios
10306fe4 B sysrq_power_off
10306fe8 B lp_table
103070cc B shift_state
103070d0 B kbd_ledfunc
103070d4 B redirect
103070d8 B spawnpid
103070dc B pts_driver
10307198 B vt_dont_switch
1030719c B do_poke_blanked_console
103071a0 B spawnsig
103071a4 B kmsg_redirect
103071a8 B poll
103071bc B console_blank_hook
103071c0 B vc_cons
103072bc B console_driver
10307378 B curdev
1030737c B hil_last
10307384 B kbd_table
10307480 B con_buf
10308480 B video_font_height
10308484 B sel_cons
10308488 B tulip_rx_copybreak
1030848c B tulip_max_interrupt_work
10308490 B last_cmnd
10308494 B scsi_CDs
10308498 B scsi_devfs_handle
1030849c B scsi_pid
103084a0 B scsi_logging_level
103084a4 B sd
103084a8 B proc_scsi
103084ac B cdrom_sysctl_settings
103088a8 B pci_pci_problems
103088ac B isa_dma_bridge_buggy
103088b0 B md_size
10308cb0 B md_hd_struct
103098b0 B mddev_map
1030a0b0 B raid1_retry_tail
1030a0b4 B wax_eisa_hba
1030a120 B hil_irq
1030a124 B hil_base
1030a128 B base_addr
1030a140 B rpc_autherr_tooweak
1030a144 B rpc_autherr_rejectedcred
1030a148 B xdr_one
1030a14c B inet_dev_count
1030a150 B tcp_openreq_cachep
1030a154 B tcp_bucket_cachep
1030a158 B inet_protos
1030a1d8 B main_table
1030a1dc B rpc_autherr_rejectedverf
1030a1e0 B rpc_prog_mismatch
1030a1e4 B ipv4_config
1030a200 B netdev_rx_stat
1030a240 B nfsd_debug
1030a244 B tcp_sockets_allocated
1030a248 B udp_port_rover
1030a280 B icmp_statistics
1030a380 B tcp_memory_pressure
1030a3c0 B ip_statistics
1030a4c0 B softnet_data
1030a500 B xdr_zero
1030a504 B inet_ifa_count
1030a508 B tcp_memory_allocated
1030a50c B rpc_auth_ok
1030a510 B icmp_inode
1030a6e8 B fib_info_cnt
1030a6ec B nlm_debug
1030a6f0 B rpc_system_err
1030a6f4 B rpc_autherr_badcred
1030a6f8 B rpc_proc_unavail
1030a6fc B xdr_two
1030a700 B sysctl_tcp_orphan_retries
1030a704 B raw_v4_htable
1030a784 B rpc_debug
1030a788 B local_table
1030a7c0 B net_statistics
1030a9c0 B rpc_autherr_badverf
1030a9c4 B ip_rt_max_size
1030a9c8 B rpc_prog_unavail
1030a9cc B rpc_success
1030aa00 B tcp_statistics
1030aa80 B ip_ra_chain
1030aa84 B rpc_garbage_args
1030aac0 B udp_statistics
1030ab40 B udp_hash
1030ad40 B sysctl_tcp_mem
1030ad4c B sysctl_ip_nonlocal_bind
1030ad50 B inet_peer_unused_head
1030ad54 B unix_socket_table
1030b158 B nfs_debug
1030b15c B tcp_timewait_cachep
1030b160 B errno
1030b164 B ___strtok
1031d7d8 A _end

--UlVJffcvxoiEqYs2--




From - Thu Nov 08 21:17:44 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems booting .61 ISO on 715/75
Date: Wed, 23 May 2001 08:58:33 +0100
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Cc: parisc-linux@lists.parisc-linux.org
To: Tom Hansen <tomh@execpc.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11094

Hi,
  I don't think 715/old (which includes 715/75) have STI graphics,
so I wouldn't expect that to work.  In any case, my 715/75 hangs
later during install (serial console).  I think that is due to problems
with glibc (misaligned locks), which should be fixed in glibc 2.2.3
some time soon.

Richard

On Sun, May 20, 2001 at 09:35:01PM -0500, Tom Hansen wrote:
> 
> I have just downloaded the 0.61 ISO:
> 
>     palinux-0.6-32STI.iso.gz
> 
> from the HP site, burned a CD, and booted from the CD on my 715/75 Apollo, 
> 160MB, Toshiba 5701 CD-ROM. I'm using the built-in console, I don't have a 
> serial console.
> 
> After what appears to be a successful start to the boot sequence (it 
> identifies devices OK, etc.) it gets as far as the line:
> 
>     Console: colour dummy device 80x25
> 
> After this line is displayed, the CD is accessed for about 2 or 3 more 
> seconds, after which everything stops.
> 
> Any ideas?
> 
> 
> --
> Tom Hansen
> tomh@execpc.com
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel panic
Date: Wed, 23 May 2001 02:53:15 -0600 (MDT)
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Cc: parisc-linux@lists.parisc-linux.org
To: rbrad@beavis.ybsoft.com
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Wed May 23 02:53:16 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:11095

>
> I have attached the panic output and the symbol table again.
>
> Thanks for the help!
>
> - Ryan

OK, the problem is that you are getting into a interrupt loop.
I see the following repeated sequence on the stack:

	intr_extint         <-----------+
	do_irq_mask                     |
	do_irq                          |
	dino_isr                        |
	sym53c8xx_intr                  |
	scsi_old_done                   |
	rw_intr                         |
	scsi_io_completion              |
	__scsi_end_request              |
	scsi_queue_next_request         |
	scsi_request_fn                 |
	scsi_dispatch_cmd               |
	<NEXT INTERRUPT>    >-----------+

I still was not able to get to the base of the stack. I believe you
are crossing many 16K blocks of memory, and die when the next
timer interrupt comes in.

Note that there is a path from scsi_dispatch_cmd that eventually calls
ccio_map_sg, i.e. I believe scsi_dispatch_cmd had already called
ccio_map_sg (indirectly) before the interupt came in. Since the interrupt
always comes in at the exact same instruction in scsi_dispatch_cmd,
it probably is happening at some point where the driver reenables
interrupts.

So, it looks like the printk in ccio_map_sg is causing the isr to take
long enough that the previous scsi command completes and the card
interrupts before the isr returns. This shouldn't happen. I talked
to Richard Hirst, and he said a later version of the sym53c8xx driver
processes things differently (using scsi_done instead of scsi_old_done)
so that this shouldn't happen. However, I believe it shouldn't be
happening anyway, because we should be preventing the isr from being
re-entered in the general irq handling code.

The bad news is that since this problem is being "caused" by the printk,
it probably does not explain your original bug (hopefully the scsi isr
normally takes much less time to complete than the actual scsi request
does!).  However, if this interrupt loop is fixed, you would then be able
to use printk to help debug the real problem.

I can't remember if your original problem crashed the system or just
caused data corruption. If the machine stays up, a debugging workaround
might be to store data in an internal array instead of using printk.
You could then dump this array after the problem occured. One possible
hack to dump the array would be to add code to dump it via the proc fs
code that already exists in the ccio_dma code.

John




From - Thu Nov 08 21:17:44 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel panic
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On Wed, May 23, 2001 at 02:53:15AM -0600, John Marvin wrote:
> I can't remember if your original problem crashed the system or just
> caused data corruption. If the machine stays up, a debugging workaround
> might be to store data in an internal array instead of using printk.
> You could then dump this array after the problem occured. One possible
> hack to dump the array would be to add code to dump it via the proc fs
> code that already exists in the ccio_dma code.

or just use printk(KERN_DEBUG "foo"); since this won't output to console.

-- 
Revolutions do not require corporate support.




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From: Stan Sieler <sieler@allegro.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel panic
Date: Wed, 23 May 2001 09:48:24 -0700 (PDT)
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X-Mailer: ELM [version 2.5 PL3]
Xref: news.gmane.org gmane.linux.ports.parisc:11097

Hi,

I was quiet before, hoping one of the more active list members
would comment ... but ... a comment on netiquette seems needed here.

We've recently seen a couple of gigantic posts to the mailing list...
of messages with 23,000+ lines of text.  Such messages take a lot of
disk and network bandwidth, and can cause performance problems for 
some users.

Hence, the two netiquette rules:

  1) don't email thousand line messages to a mailing list.

     Instead, put the text (the dump info in this case) on a 
     web server somewhere, and email the URL.  Or, offer to email
     the big file to individuals who request a copy.

     This applies to binary as well as text messages.

  2) when replying to ****ANY**** message, delete the majority 
     of it, retaining just enough to maintain context 
     for the reader!  Single-line replies that enclose a copy
     of a 23,000+ line message are just a waste ... as are
     single line replies that enclose a copy of a 20 line message.

thanks,

> John,
> 
> Thanks for the great explaination!
> 
> >             /* Stack Dump! */

... [23,400+ lines deleted]

> 1031d7d8 A _end
> 
> --UlVJffcvxoiEqYs2--
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel panic
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             <200105230853.CAA07709@udlkern.fc.hp.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:11098

John Marvin wrote:
...
> OK, the problem is that you are getting into a interrupt loop.
> I see the following repeated sequence on the stack:
> 
> 	intr_extint         <-----------+
> 	do_irq_mask                     |
> 	do_irq                          |
> 	dino_isr                        |
> 	sym53c8xx_intr                  |
> 	scsi_old_done                   |
> 	rw_intr                         |
> 	scsi_io_completion              |
> 	__scsi_end_request              |
> 	scsi_queue_next_request         |
> 	scsi_request_fn                 |
> 	scsi_dispatch_cmd               |
> 	<NEXT INTERRUPT>    >-----------+

Uh oh. that's a bug. From irq.c:do_irq_mask() 

...
                mask_irq(irq_num);
                do_irq(&region->action[irq], irq_num, regs);
                unmask_irq(irq_num);
...

So it shouldn't be possible to take another interrupt
while in do_irq().

...
> to Richard Hirst, and he said a later version of the sym53c8xx driver
> processes things differently (using scsi_done instead of scsi_old_done)
> so that this shouldn't happen. However, I believe it shouldn't be
> happening anyway, because we should be preventing the isr from being
> re-entered in the general irq handling code.

Exactly. But if the driver is mucking with IRQ enable/disable,
does that mean the enable/disable code has to keep reference counts?
Don't recall any archs doing that when we did the initial implementation. 

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: Re: [parisc-linux] kernel panic
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On Wed, May 23, 2001 at 12:59:57PM -0600, Grant Grundler wrote:
> Exactly. But if the driver is mucking with IRQ enable/disable,
> does that mean the enable/disable code has to keep reference counts?
> Don't recall any archs doing that when we did the initial implementation. 

cli -> disables irqs on all processors
__cli -> disables irqs on local processor
sti -> enables irqs on all processors
__sti -> enable irqs on local processor

spin_lock_irqsave -> disables interrupts locally, puts the previous
state into the state variable you supplied and acquires the spinlock
spin_lock_irqrestore -> releases the spinlock and restores previous
state from state variable

no need to keep enable/disable counts, the previous state gets stored
for you.  if you're using cli and sti inappropriately, you lose.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:17:44 2018
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From: Paul Bame <bame@fc.hp.com>
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Subject: [parisc-linux] Re: Help on PALINUX
Date: Wed, 23 May 2001 13:32:17 -0600
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To: Ricardo Valverde <ricardo@spet.br>
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             <3B09B235.20606@spet.br> 
Xref: news.gmane.org gmane.linux.ports.parisc:11100

I'm sending your e-mail to our mailing list parisc-linux@parisc-linux.org
which is a good place to ask this type of question.  I also suggest you
visit our web site at www.parisc-linux.org.  I believe the FAQ and
(searchable) mail archives already contain answers to your questions.

	-Paul Bame

= Hi there,
= 
=    I have one HP9000 E-35, but when i boot with CDROM my machine stop on :
= 
= POSIX conformance testing by UNIFIX
= Lasi version 0 at 0xf0100000 found.
= LED display at f010c000 registered
= 
=    Why on my machine the login screen don't show?
= 
=    Can you help me?
= 
=    Thanks.
= 
=    OBS: Sorry for my bad english
= 
=    Ricardo Valverde
= 
= 
= 
= 
= --20332E87.990644362/atlrel1.hp.com--
= 
= 




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I appear to have inadvertantly got onto your mailing list and ask that =
you remove my e-mail address from it.=20

I received 18 e-mails Friday & Saturday none of which have any meaning =
for me.

Kind regards

D King  (Ms)

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Saturday none of=20
which have any meaning for me.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Kind regards</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>D King&nbsp; =
(Ms)</FONT></DIV></BODY></HTML>

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From - Thu Nov 08 21:17:45 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] new hppa toolchain, uploaded to debian archive
Date: Wed, 23 May 2001 16:54:39 -0600
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To: parisc-linux@parisc-linux.org, debian-hppa@lists.debian.org
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Xref: news.gmane.org gmane.linux.ports.parisc:11102

Hi,

There was a slight problem with the glibc in the newcompilers-20010521 set I 
announced yesterday. It was built with a wrong header which caused a problem 
with building gdb and strace. I rebuilt glibc and have placed it and the same 
binutils and gcc at,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/newcompilers-20010523/

After several of us tested the new toolchain and did not find any regressions, 
Paul Bame uploaded the debs to the Debian archive today and they should 
hopefully be available in the next few days. However, since the binutils mess 
is still not completely cleaned up YOU STILL SHOULD NOT APT-GET UPGRADE. For 
now grab them from the above URL and install by hand. If you are sure your 
system is clean of the binutils mess then you can use this toolchain to 
produce binaries for distribution/upload to debian.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






From - Thu Nov 08 21:17:45 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] hppa64 cross compiler debs available
Date: Wed, 23 May 2001 17:10:45 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:11103

Hi hppa64 kernel users,

I have built unofficial hppa64-linux cross binutils/gcc debs for use in 
compiling 64 bit kernels on hppa-linux. They are available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/unofficial-debs/

You need both,

binutils-hppa64_2.11.90.0.7-2.0.0.1_hppa.deb
gcc-hppa64_3.0-0pre010427.0.0.1_hppa.deb

They install under /usr so you shouldn't need to modify your path to build a 
64bit kernel. These unofficial debs will not be uploaded to the debian archive 
and are intended as a interim measure until a working mechanism exists to do 
them properly based on the debian source packages.

Let me know if you have any problems.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: hppa64 cross compiler debs available
Date: Thu, 24 May 2001 11:38:40 +0100
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To: Matt Taggart <taggart@carmen.fc.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11104

On Wed, May 23, 2001 at 05:10:45PM -0600, Matt Taggart wrote:
> Hi hppa64 kernel users,
> 
> I have built unofficial hppa64-linux cross binutils/gcc debs for use in 
> compiling 64 bit kernels on hppa-linux. They are available at,
> 
> ftp://puffin.external.hp.com/pub/parisc/binaries/debian/unofficial-debs/
> 
> You need both,
> 
> binutils-hppa64_2.11.90.0.7-2.0.0.1_hppa.deb
> gcc-hppa64_3.0-0pre010427.0.0.1_hppa.deb

They depend on libc 2.2.3, so if I want to use them for building
the 64 bit kernel-images for boot-floppies to use, I need 2.2.3 on my
build system.  That probably means I need 2.2.3 on the root.bin.

Should I go down that road, or are we sticking with 2.2.1 for
initial install images?

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel panic
Date: Thu, 24 May 2001 15:16:14 +0100
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Cc: Grant Grundler <grundler@puffin.external.hp.com>,
	John Marvin <jsm@udlkern.fc.hp.com>,
	parisc-linux@lists.parisc-linux.org
To: Matthew Wilcox <matthew@wil.cx>
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Xref: news.gmane.org gmane.linux.ports.parisc:11105

On Wed, May 23, 2001 at 08:13:17PM +0100, Matthew Wilcox wrote:
> On Wed, May 23, 2001 at 12:59:57PM -0600, Grant Grundler wrote:
> > Exactly. But if the driver is mucking with IRQ enable/disable,
> > does that mean the enable/disable code has to keep reference counts?
> > Don't recall any archs doing that when we did the initial implementation. 
> 
> cli -> disables irqs on all processors
> __cli -> disables irqs on local processor
> sti -> enables irqs on all processors
> __sti -> enable irqs on local processor
> 
> spin_lock_irqsave -> disables interrupts locally, puts the previous
> state into the state variable you supplied and acquires the spinlock
> spin_lock_irqrestore -> releases the spinlock and restores previous
> state from state variable
> 
> no need to keep enable/disable counts, the previous state gets stored
> for you.  if you're using cli and sti inappropriately, you lose.

You mean like scsi_request_fn() calling  spin_unlock_irq(&io_request_lock);
when called at interrupt level?

> OK, the problem is that you are getting into a interrupt loop.
> I see the following repeated sequence on the stack:
>
>       intr_extint         <-----------+
>       do_irq_mask                     |
>       do_irq                          |
>       dino_isr                        |
>       sym53c8xx_intr                  |
>       scsi_old_done                   |
>       rw_intr                         |
>       scsi_io_completion              |
>       __scsi_end_request              |
>       scsi_queue_next_request         |
>       scsi_request_fn                 | <<<< re-enables interrupts
>       scsi_dispatch_cmd               |
>       <NEXT INTERRUPT>    >-----------+

I also found

        spin_lock(&lock) can also be used in your interrupt handler if your
        device only uses one interrupt: the kernel guarantees that a interrupt
        handler is never reentered, even if the interrupt handler runs with
        enabled interrupts.

in <http://kt.zork.net/kernel-traffic/kt20000703_74.txt>

Richard





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From: Paul Bame <bame@riverrock.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: hppa64 cross compiler debs available
Date: Thu, 24 May 2001 08:57:25 -0600
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Cc: Matt Taggart <taggart@carmen.fc.hp.com>,
	parisc-linux@parisc-linux.org, debian-hppa@lists.debian.org,
	bame@www.riverrock.org
To: Richard Hirst <rhirst@linuxcare.com>
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   of "Thu, 24 May 2001 11:38:40 BST." <20010524113840.V8736@linuxcare.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:11106

> 
> They depend on libc 2.2.3, so if I want to use them for building
> the 64 bit kernel-images for boot-floppies to use, I need 2.2.3 on my
> build system.  That probably means I need 2.2.3 on the root.bin.
> 
> Should I go down that road, or are we sticking with 2.2.1 for
> initial install images?

I recommend sticking with 2.2.1 for the root.bin and maybe base system.  The
apt-get somebody uses for grabbing the xc debs could depend on 2.2.3 and as
will many things before too long.

	-P





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From: LaMont Jones <lamont@hp.com>
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Subject: [parisc-linux] still getting $$dyncall refs in shlibs
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With the new toolchain, sipp still builds a libsipp.so.3.1 trips the
bug checker.  Checking everything on the system doesn't find any bad
libs.  Here is the build output for libsipp.so:

gcc -pipe -O3 -fPIC -I../libsipp   -c -o rendering.o rendering.c
gcc -pipe -O3 -fPIC -I../libsipp   -c -o geometric.o geometric.c
gcc -pipe -O3 -fPIC -I../libsipp   -c -o lightsource.o lightsource.c
gcc -pipe -O3 -fPIC -I../libsipp   -c -o objects.o objects.c
gcc -pipe -O3 -fPIC -I../libsipp   -c -o smalloc.o smalloc.c
gcc -pipe -O3 -fPIC -I../libsipp   -c -o transforms.o transforms.c
...
gcc -pipe -O3 -fPIC -I../libsipp   -c -o xalloca.o xalloca.c
gcc -pipe -O3 -fPIC -I../libsipp   -c -o phong.o phong.c
gcc -pipe -O3 -fPIC -I../libsipp   -c -o strauss.o strauss.c
gcc -pipe -O3 -fPIC -I../libsipp   -c -o teapot.o teapot.c
ld --shared -o libsipp.so.3.1 rendering.o geometric.o lightsource.o objects.o smalloc.o transforms.o viewpoint.o basic_shader.o marble.o granite.o mask.o bozo.o bumpy.o planet.o noise.o bezier.o bezier_lex.o pixelbuf.o torus.o cone.o ellipsoid.o prism.o sipp_pixmap.o sipp_bitmap.o wood.o xalloca.o phong.o strauss.o teapot.o  -soname libsipp.so.3 -lc
ld: bfd assertion fail ../../bfd/elf32-hppa.c:941
ld: bfd assertion fail ../../bfd/elf32-hppa.c:941

Of course, if the assertion failure actually killed the linker, that
would help...

I'm at a loss from here - and give it to those who have a clue...
lamont




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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] still getting $$dyncall refs in shlibs
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On Thu, May 24, 2001 at 03:32:59PM -0600, LaMont Jones wrote:
> With the new toolchain, sipp still builds a libsipp.so.3.1 trips the
> bug checker.  Checking everything on the system doesn't find any bad
> libs.  Here is the build output for libsipp.so:

I dug up a machine with binutils 2.11.90.0.1 and tried the same thing..

ld --shared -o libsipp.so.3.1 rendering.o geometric.o lightsource.o objects.o smalloc.o transforms.o viewpoint.o basic_shader.o marble.o granite.o mask.o bozo.o bumpy.o planet.o noise.o bezier.o bezier_lex.o pixelbuf.o torus.o cone.o ellipsoid.o prism.o sipp_pixmap.o sipp_bitmap.o wood.o xalloca.o phong.o strauss.o teapot.o  -soname libsipp.so.3 -lc
make[2]: Leaving directory `/home/demo/sipp/sipp-3.1/libsipp'

$ ls -l libsipp.so.3.1
-rwxr-xr-x    1 demo     demo       128429 May 24 15:36 libsipp.so.3.1
$ nm --dynamic libsipp.so.3.1 |grep '\$\$'
         U $$dyncall

so is there some other bug at work here?

> I'm at a loss from here - and give it to those who have a clue...

Likewise, i wish merely to report a data point.

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] Re: still getting $$dyncall refs in shlibs
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> With the new toolchain, sipp still builds a libsipp.so.3.1 trips the
> bug checker.  Checking everything on the system doesn't find any bad
> libs.  Here is the build output for libsipp.so:

Add the following .debs to the list of things that still build borken:
    auto-apt_0.3.11.0.1_hppa.deb
    installwatch_0.5.5-3.0.1_hppa.deb
    libc-client2000_2000cdebian-2_hppa.deb
    libg20_0.42.20010417-1.0.1_hppa.deb
    libmagick++5_5.3.3-5_hppa.deb
    libmimelib1_2.1.0-1.0.1_hppa.deb
    libpam-radius-auth_1.3.11-3.0.1_hppa.deb
    libseal1_1.07-4.0.1_hppa.deb
    sciplot1_1.36-8.0.1_hppa.deb
    sipp_3.1-7.0.1_hppa.deb
    slatec_4.1-4.0.1_hppa.deb

lamont




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Subject: Re: [parisc-linux] Re: still getting $$dyncall refs in shlibs
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On Thu, May 24, 2001 at 03:59:30PM -0600, LaMont Jones wrote:
> > With the new toolchain, sipp still builds a libsipp.so.3.1 trips the
> > bug checker.  Checking everything on the system doesn't find any bad
> > libs.  Here is the build output for libsipp.so:

Too much can go wrong building shared libs just using ld.  It's far
better to build using gcc -shared.  In this case, the problem is that
the shlib needs to be built linked against libgcc to satisfy the
millicode reference.

Alan





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Subject: Re: [parisc-linux] Re: still getting $$dyncall refs in shlibs
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> On Thu, May 24, 2001 at 03:59:30PM -0600, LaMont Jones wrote:
> > > With the new toolchain, sipp still builds a libsipp.so.3.1 trips the
> > > bug checker.  Checking everything on the system doesn't find any bad
> > > libs.  Here is the build output for libsipp.so:
> 
> Too much can go wrong building shared libs just using ld.  It's far
> better to build using gcc -shared.  In this case, the problem is that
> the shlib needs to be built linked against libgcc to satisfy the
> millicode reference.

That also applies to libtool which uses `ld' directly.  Gcc will run
collect2 if needed.  This is necessary for correctly processing
constructors and destructors.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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Subject: Re: [parisc-linux] Re: still getting $$dyncall refs in shlibs
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> That also applies to libtool which uses `ld' directly.  Gcc will run
> collect2 if needed.  This is necessary for correctly processing
> constructors and destructors.

Will someone file the defect against libtool, please?

lamont




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Subject: Re: [parisc-linux] Re: still getting $$dyncall refs in shlibs
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> Will someone file the defect against libtool, please?

Done.  There is a PR (objc/2902) against gcc 3.0 (prerelease).  This
is where I noticed the problem first.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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Hi,

I need help booting my brand new (well.. just got it) 715/100.. 
It boots the 061 STI32 cdrom using an scsi cdrom (plextor
32x, id=3) flawlessly, finds all the hard disks etc, framebuffer is
working (its even nicer that it works on my MAG XJ500T
15" PC monitor after i changed the resolution to 1024 75hz), but somehow
the keyboard seems to be frozen after it displays the login
prompt. Even the numlock led wont change if i start pessing it.
Do i need a nullmodem cable and a pc to use it? Does not make sense to
have the nice framebuffer and stuff without a working keyboard :(
The other question is that if i want to use serial console, will the STI32
image work if i change the console param. to something like ttyS0 before
it boots? Or i need the serial console version.
I might try some different brand PC keyboards, in case it matters.

Im quite new to these HP boxes (yesterday is the first day i ever saw it,
but no hp-ux, thanks), so it might be something trivial w/ the box I
forgot. 

In case somebody is interested in how this baby looks like w/ the
case open, you can check it at http://diab.rulez.org/hp.jpg (550k
3200x1600). 
Its so nice (compared to a pcs i got used to) i had to make a photo 
of it :)

regards,

-- 
diab 
		





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From: amodra@one.net.au
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Subject: [parisc-linux] elf32-hppa: abort rather than BFD_ASSERT
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Be a little more brutal.  Any BFD_ASSERT failure here either rapidly
results in a segfault during linking, or worse, generates shared libs
and executables that will bomb with bus errors at runtime.  An
undefined millicode symbol in a shared library is nasty too:  they
can't be satisfied by another shared lib export as the ABI doesn't
allow millicode to be exported from shared libs.

bfd/ChangeLog
	* elf32-hppa.c (elf32_hppa_relocate_section): Don't allow
	undefined millicode syms in shared libs.
	(hppa_build_one_stub): Turn BFD_ASSERTs into aborts.
	(elf32_hppa_check_relocs): Likewise.
	(elf32_hppa_adjust_dynamic_symbol): Likewise.
	(elf32_hppa_size_dynamic_sections): Likewise.
	(elf32_hppa_relocate_section): Likewise.
	(elf32_hppa_finish_dynamic_symbol): Likewise.
	(elf32_hppa_finish_dynamic_sections): Likewise.

-- 
Alan Modra

Index: bfd/elf32-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
retrieving revision 1.33
diff -u -p -r1.33 elf32-hppa.c
--- elf32-hppa.c	2001/05/18 03:11:13	1.33
+++ elf32-hppa.c	2001/05/25 02:50:18
@@ -938,7 +938,8 @@ hppa_build_one_stub (gen_entry, in_arg)
 
     case hppa_stub_import:
     case hppa_stub_import_shared:
-      BFD_ASSERT (stub_entry->h->elf.plt.offset < (bfd_vma) -2);
+      if (stub_entry->h->elf.plt.offset >= (bfd_vma) -2)
+	abort ();
       sym_value = (stub_entry->h->elf.plt.offset
 		   + hplink->splt->output_offset
 		   + hplink->splt->output_section->vma
@@ -998,8 +999,9 @@ hppa_build_one_stub (gen_entry, in_arg)
 	  dynobj = hplink->root.dynobj;
 	  eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h;
 
-	  BFD_ASSERT (eh->elf.root.type == bfd_link_hash_defined
-		      || eh->elf.root.type == bfd_link_hash_defweak);
+	  if (eh->elf.root.type != bfd_link_hash_defined
+	      && eh->elf.root.type != bfd_link_hash_defweak)
+	    abort ();
 
 	  value = (eh->elf.root.u.def.value
 		   + eh->elf.root.u.def.section->output_offset
@@ -1289,7 +1291,8 @@ elf32_hppa_check_relocs (abfd, info, sec
 	case R_PARISC_PLABEL21L:
 	case R_PARISC_PLABEL32:
 	  /* If the addend is non-zero, we break badly.  */
-	  BFD_ASSERT (rel->r_addend == 0);
+	  if (rel->r_addend != 0)
+	    abort ();
 
 	  /* If we are creating a shared library, then we need to
 	     create a PLT entry for all PLABELs, because PLABELs with
@@ -1968,8 +1971,9 @@ elf32_hppa_adjust_dynamic_symbol (info, 
      real definition first, and we can just use the same value.  */
   if (h->weakdef != NULL)
     {
-      BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
-		  || h->weakdef->root.type == bfd_link_hash_defweak);
+      if (h->weakdef->root.type != bfd_link_hash_defined
+	  && h->weakdef->root.type != bfd_link_hash_defweak)
+	abort ();
       h->root.u.def.section = h->weakdef->root.u.def.section;
       h->root.u.def.value = h->weakdef->root.u.def.value;
       return true;
@@ -2173,7 +2177,8 @@ elf32_hppa_size_dynamic_sections (output
 
   hplink = hppa_link_hash_table (info);
   dynobj = hplink->root.dynobj;
-  BFD_ASSERT (dynobj != NULL);
+  if (dynobj == NULL)
+    abort ();
 
   if (hplink->root.dynamic_sections_created)
     {
@@ -2183,7 +2188,8 @@ elf32_hppa_size_dynamic_sections (output
       if (! info->shared)
 	{
 	  s = bfd_get_section_by_name (dynobj, ".interp");
-	  BFD_ASSERT (s != NULL);
+	  if (s == NULL)
+	    abort ();
 	  s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
 	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
 	}
@@ -3590,7 +3596,8 @@ elf32_hppa_relocate_section (output_bfd,
 	  else if (h->elf.root.type == bfd_link_hash_undefweak)
 	    ;
 	  else if (info->shared && !info->no_undefined
-		   && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT)
+		   && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
+		   && h->elf.type != STT_PARISC_MILLI)
 	    {
 	      if (info->symbolic)
 		if (!((*info->callbacks->undefined_symbol)
@@ -3623,7 +3630,8 @@ elf32_hppa_relocate_section (output_bfd,
 	      bfd_vma off;
 
 	      off = h->elf.got.offset;
-	      BFD_ASSERT (off != (bfd_vma) -1);
+	      if (off == (bfd_vma) -1)
+		abort ();
 
 	      if (! hplink->root.dynamic_sections_created
 		  || (info->shared
@@ -3659,11 +3667,10 @@ elf32_hppa_relocate_section (output_bfd,
 	    {
 	      /* Local symbol case.  */
 	      bfd_vma off;
-
-	      BFD_ASSERT (local_got_offsets != NULL
-			  && local_got_offsets[r_symndx] != (bfd_vma) -1);
 
-	      off = local_got_offsets[r_symndx];
+	      if (local_got_offsets == NULL
+		  || (off = local_got_offsets[r_symndx]) == (bfd_vma) -1)
+		abort ();
 
 	      /* The offset must always be a multiple of 4.  We use
 		 the least significant bit to record whether we have
@@ -3773,7 +3780,8 @@ elf32_hppa_relocate_section (output_bfd,
 		    }
 		}
 
-	      BFD_ASSERT (off < (bfd_vma) -2);
+	      if (off >= (bfd_vma) -2)
+		abort ();
 
 	      /* PLABELs contain function pointers.  Relocation is to
 		 the entry for the function in the .plt.  The magic +2
@@ -3840,7 +3848,8 @@ elf32_hppa_relocate_section (output_bfd,
 		  if (name == NULL)
 		    return false;
 		  sreloc = bfd_get_section_by_name (dynobj, name);
-		  BFD_ASSERT (sreloc != NULL);
+		  if (sreloc == NULL)
+		    abort ();
 		}
 
 	      outrel.r_offset = rel->r_offset;
@@ -4112,7 +4121,8 @@ elf32_hppa_finish_dynamic_symbol (output
 	}
       else
 	{
-	  BFD_ASSERT((h->got.offset & 1) == 0);
+	  if ((h->got.offset & 1) != 0)
+	    abort ();
 	  bfd_put_32 (output_bfd, (bfd_vma) 0,
 		      hplink->sgot->contents + h->got.offset);
 	  rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32);
@@ -4133,9 +4143,10 @@ elf32_hppa_finish_dynamic_symbol (output
 
       /* This symbol needs a copy reloc.  Set it up.  */
 
-      BFD_ASSERT (h->dynindx != -1
-		  && (h->root.type == bfd_link_hash_defined
-		      || h->root.type == bfd_link_hash_defweak));
+      if (! (h->dynindx != -1
+	     && (h->root.type == bfd_link_hash_defined
+		 || h->root.type == bfd_link_hash_defweak)))
+	abort ();
 
       s = hplink->srelbss;
 
@@ -4181,7 +4192,8 @@ elf32_hppa_finish_dynamic_sections (outp
     {
       Elf32_External_Dyn *dyncon, *dynconend;
 
-      BFD_ASSERT (sdyn != NULL);
+      if (sdyn == NULL)
+	abort ();
 
       dyncon = (Elf32_External_Dyn *) sdyn->contents;
       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);




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From: "H . J . Lu" <hjl@lucon.org>
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Subject: [parisc-linux] Re: elf32-hppa: abort rather than BFD_ASSERT
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Xref: news.gmane.org gmane.linux.ports.parisc:11116

On Fri, May 25, 2001 at 01:03:59PM +0930, amodra@one.net.au wrote:
> Be a little more brutal.  Any BFD_ASSERT failure here either rapidly
> results in a segfault during linking, or worse, generates shared libs
> and executables that will bomb with bus errors at runtime.  An
> undefined millicode symbol in a shared library is nasty too:  they
> can't be satisfied by another shared lib export as the ABI doesn't
> allow millicode to be exported from shared libs.
> 

Why not give some useful messaages? I have been doing that for new
tests I added.


H.J.




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Subject: [parisc-linux] Re: elf32-hppa: abort rather than BFD_ASSERT
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Xref: news.gmane.org gmane.linux.ports.parisc:11117

On Thu, May 24, 2001 at 08:33:56PM -0700, H . J . Lu wrote:
> 
> Why not give some useful messaages? I have been doing that for new
> tests I added.

Well, the asserts (now aborts) shouldn't ever happen :-)  They indicate
some sort of internal bfd error.  Note that "abort" is #defined to
_bfd_abort, which spits out file, line and function info, so we haven't
lost any information compared to the BFD_ASSERT code.

Alan





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From: Grant Grundler <grundler@puffin.external.hp.com>
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To: Richard Hirst <rhirst@linuxcare.com>
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Richard Hirst wrote:
> You mean like scsi_request_fn() calling  spin_unlock_irq(&io_request_lock);
> when called at interrupt level?

spin_unlock_irq() can only twiddle the I-bit (PSW) since it's not
told which irq to save/restore state for.  But the EIEM bit in CR15
should remain masked. So I don't think this code should be a problem.

*Someone* is unmasking the CPU EIEM bit for dino_isr().
And that's a bug since only do_irq_mask() should be unmasking it
when the ISR completes. This is orthogonal to the I-bit state.

...
> I also found
> 
>       spin_lock(&lock) can also be used in your interrupt handler if your
>       device only uses one interrupt: the kernel guarantees that a interrupt
>       handler is never reentered, even if the interrupt handler runs with
>       enabled interrupts.
> 
> in <http://kt.zork.net/kernel-traffic/kt20000703_74.txt>

I read the kt summary. The wording is somewhat ambiguous.

Each device instance will typically use one interrupt.
The above statement suggests to me the driver ISR gets called serially
to handle each device instance. That's certainly not the case for
anything with IO APIC or SAPIC.

I think he meant the ISR won't get re-entered for a given instance
of a device. And the kernel does that by masking the particular IRQ
assigned to that device instance.
For some reason that doesn't appear to be working for dino.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Matthieu Delahaye <delahaym@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] dead keyboard after booting 0.61 STI32 iso on a 
 715/100
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Hi diab(?)

Xavier Debacker could have some element 
for you about your problems but is not 
here today (Legal Holidays). Some hardware
on your 715 box could not work correctly
with the PA/Linux version given on ISOs.
Could you send him (debackex@esiee.fr) the list
of hardware detected by the kernel during the boot sequence?
Or at least if you have an HIL or PS/2 Keyboard?
I think you could get so a fast answer sunday evening (GMT+1)

Regards,

Matthieu Delahaye
-- 
ESIEE Team
http://mkhppa1.esiee.fr/




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Subject: Re: [parisc-linux] dead keyboard after booting 0.61 STI32 iso on a
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Xref: news.gmane.org gmane.linux.ports.parisc:11120

Hi,

Yes, it is a a PC PS2 keyboard (plugged to a keyboard adapter module,
which connects to the HP715 w/ an rj45 like jack).
I've tried two different ps2 keyboars, with no luck so far

before that fbconsole would init i see a screen full of information 
(lots of rows starting with Mirage something detected) but it clears the
screen (switchin to STIfb) so quick, i cant read it :( 
is there any way to hold it? 

% Could you send him (debackex@esiee.fr) the list
% of hardware detected by the kernel during the boot sequence?
hardware detected:
ttys00, ttys01, lp0 
Sim700: 57c710 scsi (it displays a warning, irq probe failed)
Lasi Harmony Audio rev. 18 

im typing all of these from my memory since the keyboard is frozen after
vmlinuz stars to boot and no way to somehow stop the screen :(
i even tried to make a photo of it but the flash makes the screen
unreadable and its too dark and "moving" quickly for flashless pix.

--
diab 
		





From - Thu Nov 08 21:17:46 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] executing from loopback mounts crashes A500
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Make an fs in a file, mount it, copy bash in, unmount, lots of
disk traffic to flush memory, mount it again, try and execute
bash.  Random problems, generally resulting in a hung system.
With a smaller binary I got a few random errors and then it started
working.

Richard


slab:/usr/src/boot-floppies# cd /tmp
slab:/tmp# dd if=/dev/zero of=img bs=1M count=8
8+0 records in
8+0 records out
slab:/tmp# mke2fs img  
mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
img is not a block special device.
Proceed anyway? (y,n) y
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
2048 inodes, 8192 blocks
409 blocks (4.99%) reserved for the super user
First data block=1
1 block group
8192 blocks per group, 8192 fragments per group
2048 inodes per group

Writing inode tables: done                            
Writing superblocks and filesystem accounting information: done
slab:/tmp# mkdir mnt
slab:/tmp# mount -o loop img mnt
slab:/tmp# cp /bin/bash mnt
slab:/tmp# umount mnt
slab:/tmp# dd if=/dev/sda of=/dev/null bs=1M count=256
256+0 records in
256+0 records out
slab:/tmp# mount -o loop img mnt
slab:/tmp# mnt/bash
mnt/bash: error while loading shared libraries: cannot load shared object file: Error 21
slab:/tmp# mnt/bash
Illegal instruction
slab:/tmp# mnt/bash
Illegal instruction
slab:/tmp# mnt/bash
Trace/breakpoint trap

(hung system)




From - Thu Nov 08 21:17:47 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] List of packages for hppa ISO release
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Hi binary-hppa hackers,

I have generated a list of packages that we intend to put in the ISO release 
at the end of this month. The list represents a first pass at what pb, willy, 
and I think should be installed on a parisc linux server box. We have excluded 
packages from non-US for the same reasons that Debian does. The way this list 
was generated was by installing the packages and then running a "dpkg 
--get-selections". If you like you can make your system identical to this list 
by feeding the list to "dpkg --set-selections". The list is available at,

http://puffin.external.hp.com/~taggart/selections.20010525

There are still a few missing dependencies but those should be taken care of 
in the next few days. If you have additions/deletions to the list please send 
them to me.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: Re: [parisc-linux] Major hppa binutils problem
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   of "Tue, 22 May 2001 18:07:59 MDT." <20010523000759.C759937DCE@carmen.fc.hp.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:11123

Matt Taggart writes...

[snip]
> Paul Bame has written a script you can run to check and see if your system
> has any bad debs installed. Its available at,
> 
> ftp://puffin.external.hp.com/pub/parisc/tools/plt-checker

It was discovered that this tool could silently fail if you didn't have the 
right version of binutils installed. I have updated the URL above with Paul's 
latest version. Also most of the bad debs in the debian archive have been 
replaced by new clean ones. So what a few of us have been doing is,

- "apt-get update; apt-get upgrade" to get all the latest debs
- run plt-checker
- remove or replace the remaining stuff that's broken

You'll probably want to do something similar.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






From - Thu Nov 08 21:17:47 2018
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From: James FitzGibbon <james@ehlo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Install CD causes reboot on 712/80
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I'm new to PARISC-Linux.  I've had a 712/80 sitting around for a few years
and thought I'd give it a go.  Using the palinux-0.6.1-32STI.iso image, I
burned a CD and attempted to install.

The boot process in and of itself went fine.  The kernel came up, reported
all of the devices that are shown for this model in the hardware database. 
After init entered runlevel 2, the message "Setting up /tmp and /var/log
ramdisks" was displayed.  About 5 seconds after that, the system rebooted.

I've tried futzing around with the SCSI ids with no luck.  Does anyone have
an idea or procedure I can try to get around this or find out more
information as to why it's happening?

I'm going to try the 0.6 image as well as the serial console one in the
meantime (I have firmware 2.3, so I should be OK to go back and forth).

Thanks.

-- 
j.




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] List of packages for hppa ISO release
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Matt Taggart wrote:
> http://puffin.external.hp.com/~taggart/selections.20010525
> 
> There are still a few missing dependencies but those should be taken care of 
> in the next few days. If you have additions/deletions to the list please send
> them to me.

o ditch ipchains and add iptables instead.
o add cvs
o add an irc client? (tirc? tinyirc? ircii?)
o any memory or selftest tools we can include?
  (even untested - I'm looking at x86 package that has mem/cpu test)

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Install CD causes reboot on 712/80
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To: Jonathan Crockett <jcrockett@midco.net>
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* Jonathan Crockett (jcrockett@midco.net) [010526 10:04]:

> I have a 715/80 with both the on board graphic and a expansion graphic card,
> that had very similar symptoms.  I disconnected the addon graphics card and
> the STI image then worked.  Hope that gives you some insight...

Using the 0.6 serial image worked for me (the 0.61 image died the same as
the STI).  I did try removing what is the only addon card in the box, but it
looks more like cache than video.  It didn't help the 0.61 image.

The output regarding ramdisks is different on 0.6:

INIT: Entering runlevel: 2
Setting up /tmp ramdisk4096+0 records in
4096+0 records out

Then it gives me the login prompt.  On 0.61, it would go:

INIT: Entering runlevel: 2
Setting up /tmp and /var/log ramdisks

and reboot.  So something is different regarding ramdisks (or perhaps mkfs)
on 0.61 vs 0.60.

Thanks for the help.

-- 
j.




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Summary:
    Latest versions of apt don't compile with g++3.0 even on x86.

    Upstream CVS apt has bugs which might or might not be related to
    my changes to compile with g++3.0.  Upstream CVS apt doesn't even
    compile (for me) using older compilers on x86.

    One current parisc apt failure mode of both 0.4.0 and 0.5.3 appears
    to be a kernel VM problem though that doesn't make sense since the
    variable to make 0.4.0 fail is to update to glibc 2.2.3 from 2.2.1
    unless it's just the right change to the memory map to tweek some bug.

    Many thanks to tausq (Randolph Chung) for providing a patch with
    many of the changes required to make apt compile with g++3.0

    If someone with a clue about VM would take a look I'd appreaciate it
    because I'm really burnt out on apt right now.

VM Problem?
    Reproduce by removing /var/cache/apt/*.bin then running apt-get update.
    apt-get updates which don't download new packages file seem to work.

    The test generates a type 6 fault trying to fetch an instruction from
    an apt-specific shared library from which code has been happily
    executing up to this point.  The failure has the hallmarks (IIR is
    0x43ffff80) of fetching from an unmapped page.  Gdb disassembly of
    this area immediately after the fault shows garbage.

    The fault appears to happen shortly
    after the pkgcache.bin file, in which apt builds a memory-mapped
    database, is munmap-ped.  As we've seen, apt functions correctly
    even with this defect which is consistent with the apt database
    being updated properly in spite of the fault.

apt 0.5.3 + parisc problem:
    Like 0.4.0, apt 0.5.3 (hacked to compile with g++3.0 and working
    ok on x86) faults in the above test case.  However apt-get installs
    also fail, by segfaulting prior to doing their work.  Through layers
    of C++ code it appears that a bad data value is being read from the
    (memory-mapped) database.  That value is used to construct a
    pointer which is invalid leading to a type=15 fault.

    I can't find the bad data value in the database file from which
    it must be coming, leading me to conclude I either haven't yet
    found the root cause (quite possible -- it has taken hours to
    grok and trace the layers of C++) or that the database is corrupt due to
    premature death of the apt-get update.  I'm guessing the former.

Generic apt 0.5.3 problem:
    'apt-cache dump' built with my changes crashes on both x86 and
    parisc (the 0.5.3 x86 official debian package works fine).  This
    could indicate some subtle defect with the conversion to g++3.0
    most of which deals with strings.  Apt seems to use C++ strings
    extensively, but is always poking around inside their guts, so
    it would be easy to do something stupid there I think.  It's also
    possible that the g++3.0 is unconvering an existing defect.


    	-P




From - Thu Nov 08 21:17:47 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] some information on apt woes
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Xref: news.gmane.org gmane.linux.ports.parisc:11128

On Sat, May 26, 2001 at 10:08:09PM -0600, bame@debian.org wrote:
>     One current parisc apt failure mode of both 0.4.0 and 0.5.3 appears
>     to be a kernel VM problem though that doesn't make sense since the
>     variable to make 0.4.0 fail is to update to glibc 2.2.3 from 2.2.1
>     unless it's just the right change to the memory map to tweek some bug.

The faults I've seen from 0.4.0 are very different from those which
you report.  0.4.0 segfaults during exit as it attempts to execute code
in the dynamic linker (possibly a destructor?), after the dynamic linker
has been unmapped.

The 0.5.3 crashes I've seen look more like dereferencing random data.

-- 
Revolutions do not require corporate support.




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From: Paul Bame <bame@riverrock.org>
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In-Reply-To: Message from Matthew Wilcox <matthew@wil.cx> 
   of "Sun, 27 May 2001 05:27:07 BST." <20010527052707.J23718@parcelfarce.linux.theplanet.co.uk> 
Xref: news.gmane.org gmane.linux.ports.parisc:11129

> On Sat, May 26, 2001 at 10:08:09PM -0600, bame@debian.org wrote:
> >     One current parisc apt failure mode of both 0.4.0 and 0.5.3 appears
> >     to be a kernel VM problem though that doesn't make sense since the
> >     variable to make 0.4.0 fail is to update to glibc 2.2.3 from 2.2.1
> >     unless it's just the right change to the memory map to tweek some bug.
> 
> The faults I've seen from 0.4.0 are very different from those which
> you report.

That's why I said "One" above...  That "one" seems easily repeatable across
different boxes so seemed the best candidate for investigation and sharing.

>  0.4.0 segfaults during exit as it attempts to execute code
> in the dynamic linker (possibly a destructor?), after the dynamic linker
> has been unmapped.

It's possible I didn't examine the 0.4.0 memory map carefully enough to
distinguish the dynamic linker from other code.  I'm certain of the analysis
for 0.5.3 however.

> 
> The 0.5.3 crashes I've seen look more like dereferencing random data.

Sorry I must've been obtuse. Bad value used to construct an invalid pointer
leading to a type=15 fault" was supposed to indicate the same thing.  Again
I picked and analyzed one repeatable case, so my pointer was constant
from test to test not random.  Using apt in multiple ways probably produces 
more random-looking failures.
 
> Revolutions do not require corporate support.

-- 
			-Paul Bame

    We are somehow fooled into believing that the profoundly undemocratic,
    indeed fascist, structure inside corporations, some of the most powerful
    institutions of our time, is no threat to our democracy.
						    Lip de Los Nacos






From - Thu Nov 08 21:17:47 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] i hate cvs
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someone want to tell me how to get a copy of our source tree from, say,
May 19th?  cvs up -D'19 May 2001' is not the answer because it gets
files off the vendor branch which is useless.

why aren't there any good source control tools?

-- 
Revolutions do not require corporate support.




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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] Re: i hate cvs
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Hi Matthew,

without guarantee - but I think you first need to
"cvs co -A"  and then "cvs up -D20010519"

Helge

On Monday 28 May 2001 01:48, Matthew Wilcox wrote:
> someone want to tell me how to get a copy of our source tree from, say,
> May 19th?  cvs up -D'19 May 2001' is not the answer because it gets
> files off the vendor branch which is useless.
>
> why aren't there any good source control tools?




From - Thu Nov 08 21:17:47 2018
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Subject: [parisc-linux] Fwd: Configure.help entries wanted
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Hi,

I saw the following mail from lkml and thought we should feed Eric S. Raymond 
with the necessary explanations for 
CONFIG_IODC_CONSOLE and
CONFIG_IOMMU_CCIO.

Anyone to volunteer for CONFIG_IOMMU_CCIO ? 
I can take care of CONFIG_IODC_CONSOLE later today - even if it will be 
removed later in the parisc-kernel development cycle.

Greetings,
Helge

----------  Forwarded Message  ----------
Subject: Configure.help entries wanted
Date: Fri, 25 May 2001 01:22:00 -0400
From: "Eric S. Raymond" <esr@thyrsus.com>
To: CML2 <linux-kernel@vger.kernel.org>, kbuild-devel@lists.sourceforge.net


Over the last few week, Steven Cole and I have been working hard on filling
in the missing entries in Configure.help.  When I accepted the maintainer's
baton from Axel Boldt, there were 537 of these.  There are now 55.  Yes,
we collected around 50 entries and outright wrote close to 450 others.

That's the good news.  The bad news is that the 55 left are the ones we could
not document by reading the code and doing Web searches to find context.
All but two are buried in deep, obscure corners of the port trees.

If we take the open-source idea seriously, we're trying to create a
kernel that can be tinkered with by anyone with a bright idea.
Therefore we should have *every* configuration symbol documented.

Please help.  If you understand what one of these symbols is doing, mail
me and tell me.  Your English doesn't have to be perfectly polished, I'll
take care of that.  The important thing is that your explanation should
provide *motivation* -- not just what the option does, but why somebody
building a kernel might want it on.

Here's an example of a poor explanation:

CONFIG_GONKULATOR
   Say Y here to support adaptive gonkulation using the Randomatics 5523
   board.

Here's an example of a good explanation:

CONFIG_GONKULATOR
   Say Y here to enable adaptive gonkulation using the Randomatics 5523
   board.  With this feature you'll be able to cross-wire your frobozz ports
   to a nonce generator for significantly faster foo-counter spin.

Amaze your friends and confound your enemies with your hackerly erudition --
contribute a Configure.help entry today!

---------------------------------------------------------------------------
Mainline:

CONFIG_NET_SCH_ATM

Multiple ports:

CONFIG_SUN_KEYBOARD

ARM port:

CONFIG_ARCH_FTVPCI
CONFIG_ARCH_NEXUSPCI
CONFIG_ARCH_P720T
CONFIG_CPU_ARM920_CPU_IDLE
CONFIG_CPU_ARM920_D_CACHE_ON
CONFIG_CPU_ARM920_I_CACHE_ON
CONFIG_DEBUG_CLPS711X_UART2
CONFIG_SA1100_SHERMAN

PPC port:

CONFIG_EST8260
CONFIG_BLK_DEV_MPC8xx_IDE
CONFIG_IRQ_ALL_CPUS
CONFIG_USE_MDIO

S390 port:

CONFIG_CHANDEV
CONFIG_CTC
CONFIG_DASD_DIAG
CONFIG_BLK_DEV_XPRAM
CONFIG_FAST_IRQ
CONFIG_IUCV
CONFIG_S390_SUPPORT
CONFIG_S390_TAPE
CONFIG_S390_TAPE_3480
CONFIG_S390_TAPE_3490
CONFIG_S390_TAPE_BLOCK
CONFIG_S390_TAPE_CHAR

SuperH port:

CONFIG_SH_SCI
CONFIG_SH_STANDARD_BIOS
CONFIG_DEBUG_KERNEL_WITH_GDB_STUB

IA64 port:

CONFIG_DISABLE_VHPT
CONFIG_MCKINLEY_A0_SPECIFIC
CONFIG_MCKINLEY_ASTEP_SPECIFIC
CONFIG_IA64_DEBUG_CMPXCHG
CONFIG_IA64_DEBUG_IRQ
CONFIG_IA64_EARLY_PRINTK
CONFIG_IA64_PRINT_HAZARDS

CRIS port:

CONFIG_ETRAX_FLASH_BUSWIDTH
CONFIG_ETRAX_I2C_USES_PB_NOT_PB_I2C
CONFIG_ETRAX_RS485_ON_PA_BIT
CONFIG_ETRAX_SDRAM
CONFIG_ETRAX_SER0_CD_ON_PB_BIT
CONFIG_ETRAX_SER0_DSR_ON_PB_BIT
CONFIG_ETRAX_SER0_DTR_ON_PB_BIT
CONFIG_ETRAX_SER0_RI_ON_PB_BIT
CONFIG_ETRAX_SER1_CD_ON_PB_BIT
CONFIG_ETRAX_SER1_DSR_ON_PB_BIT
CONFIG_ETRAX_SER1_DTR_ON_PB_BIT
CONFIG_ETRAX_SER1_RI_ON_PB_BIT
CONFIG_ETRAX_SER2_CD_ON_PA_BIT
CONFIG_ETRAX_SER2_DSR_ON_PA_BIT
CONFIG_ETRAX_SER2_DTR_ON_PA_BIT
CONFIG_ETRAX_SER2_RI_ON_PA_BIT
CONFIG_JULIETTE

PA-RISC port:

CONFIG_IODC_CONSOLE
CONFIG_IOMMU_CCIO
--
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

Nearly all men can stand adversity, but if you want to test a man's
 character, give him power.
	-- Abraham Lincoln




From - Thu Nov 08 21:17:47 2018
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From: "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] dead keyboard after booting 0.61 STI32 iso on 
	a  715/100
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To: "'Matthieu Delahaye'" <delahaym@esiee.fr>,
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Hi all,

Just for the record,
Have identical behaviour with c110, with ps/2 keyboard&mouse.
Tried 0.6 and 0.6.1, both freezes after the login prompt.....

Hans

> -----Original Message-----
> From:	Matthieu Delahaye [SMTP:delahaym@esiee.fr]
> Sent:	Friday, May 25, 2001 10:08 AM
> To:	diab; puffin@esiee.net; parisc-linux
> Subject:	Re: [parisc-linux] dead keyboard after booting 0.61 STI32
> iso on a  715/100
> 
> Hi diab(?)
> 
> Xavier Debacker could have some element 
> for you about your problems but is not 
> here today (Legal Holidays). Some hardware
> on your 715 box could not work correctly
> with the PA/Linux version given on ISOs.
> Could you send him (debackex@esiee.fr) the list
> of hardware detected by the kernel during the boot sequence?
> Or at least if you have an HIL or PS/2 Keyboard?
> I think you could get so a fast answer sunday evening (GMT+1)
> 
> Regards,
> 
> Matthieu Delahaye
> -- 
> ESIEE Team
> http://mkhppa1.esiee.fr/
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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Cc: parisc-linux@lists.parisc-linux.org, rhirst@linuxcare.com
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Xref: news.gmane.org gmane.linux.ports.parisc:11134

Does anyone know why elf_link_output_extsym is only called for a
shared link on symbols forced local?  Is it just a case of bit-rot
in that at one stage it was only symbol versioning with shared libs
that could force symbols local?

Not calling elf_link_output_extsym has the effect that the back-end
finish_dynamic_symbol routine isn't called, which means various hacks
are needed like the following:

bfd/ChangeLog
	* elf32-hppa.c (elf32_hppa_relocate_section): Set up .plt entries
	for symbols forced local that need plabels.
	(elf32_hppa_adjust_dynamic_symbol): Don't allocate space in
	.plt.rela for local syms if non-shared.
	(hppa_build_one_stub): Mask lsb of plt.offset.
	(elf32_hppa_finish_dynamic_symbol): Abort if lsb of plt.offset set.
	(clobber_millicode_symbols): Correct comment.
	(elf32_hppa_relocate_section): Likewise.
	(elf32_hppa_finish_dynamic_symbol): Likewise.

-- 
Alan Modra

Index: bfd/elf32-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
retrieving revision 1.34
diff -u -p -r1.34 elf32-hppa.c
--- elf32-hppa.c	2001/05/25 03:46:49	1.34
+++ elf32-hppa.c	2001/05/28 08:31:36
@@ -831,6 +831,7 @@ hppa_build_one_stub (gen_entry, in_arg)
   bfd_byte *loc;
   bfd_vma sym_value;
   bfd_vma insn;
+  bfd_vma off;
   int val;
   int size;
 
@@ -938,9 +939,12 @@ hppa_build_one_stub (gen_entry, in_arg)
 
     case hppa_stub_import:
     case hppa_stub_import_shared:
-      if (stub_entry->h->elf.plt.offset >= (bfd_vma) -2)
+      off = stub_entry->h->elf.plt.offset;
+      if (off >= (bfd_vma) -2)
 	abort ();
-      sym_value = (stub_entry->h->elf.plt.offset
+
+      off &= ~ (bfd_vma) 1;
+      sym_value = (off
 		   + hplink->splt->output_offset
 		   + hplink->splt->output_section->vma
 		   - elf_gp (hplink->splt->output_section->owner));
@@ -1014,10 +1018,10 @@ hppa_build_one_stub (gen_entry, in_arg)
 	     <__gp>.  */
 
 	  bfd_put_32 (hplink->splt->owner, value,
-		      hplink->splt->contents + eh->elf.plt.offset);
+		      hplink->splt->contents + off);
 	  value = elf_gp (hplink->splt->output_section->owner);
 	  bfd_put_32 (hplink->splt->owner, value,
-		      hplink->splt->contents + eh->elf.plt.offset + 4);
+		      hplink->splt->contents + off + 4);
 	}
       break;
 
@@ -1957,11 +1961,14 @@ elf32_hppa_adjust_dynamic_symbol (info, 
 		return false;
 	    }
 
-	  /* We also need to make an entry in the .rela.plt section.  */
-	  s = hplink->srelplt;
-	  s->_raw_size += sizeof (Elf32_External_Rela);
+	  if (h->dynindx != -1 || info->shared)
+	    {
+	      /* We also need to make an entry in the .rela.plt section.  */
+	      s = hplink->srelplt;
+	      s->_raw_size += sizeof (Elf32_External_Rela);
 
-	  hplink->need_plt_stub = 1;
+	      hplink->need_plt_stub = 1;
+	    }
 	}
       return true;
     }
@@ -2149,8 +2156,8 @@ clobber_millicode_symbols (h, info)
      struct elf_link_hash_entry *h;
      struct bfd_link_info *info;
 {
-  /* Note!  We only want to remove these from the dynamic symbol
-     table.  Therefore we do not set ELF_LINK_FORCED_LOCAL.  */
+  /* We only want to remove these from the dynamic symbol table.
+     Therefore we do not leave ELF_LINK_FORCED_LOCAL set.  */
   if (h->type == STT_PARISC_MILLI)
     {
       unsigned short oldflags = h->elf_link_hash_flags;
@@ -3684,10 +3691,10 @@ elf32_hppa_relocate_section (output_bfd,
 
 		  if (info->shared)
 		    {
-		      /* Output a dynamic *ABS* relocation for this
-			 GOT entry.  In this case it is relative to
-			 the base of the object because the symbol
-			 index is zero.  */
+		      /* Output a dynamic relocation for this GOT
+			 entry.  In this case it is relative to the
+			 base of the object because the symbol index
+			 is zero.  */
 		      Elf_Internal_Rela outrel;
 		      asection *srelgot = hplink->srelgot;
 
@@ -3735,6 +3742,25 @@ elf32_hppa_relocate_section (output_bfd,
 	      if (h != NULL)
 		{
 		  off = h->elf.plt.offset;
+		  if (!info->shared
+		      && (h->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
+		    {
+		      /* In a non-shared link, adjust_dynamic_symbols
+			 isn't called for symbols forced local.  We
+			 need to write out the plt entry here.  */ 
+		      if ((off & 1) != 0)
+			off &= ~1;
+		      else
+			{
+			  bfd_put_32 (output_bfd,
+				      relocation,
+				      hplink->splt->contents + off);
+			  bfd_put_32 (output_bfd,
+				      elf_gp (hplink->splt->output_section->owner),
+				      hplink->splt->contents + off + 4);
+			  h->elf.plt.offset |= 1;
+			}
+		    }
 		}
 	      else
 		{
@@ -3780,7 +3806,7 @@ elf32_hppa_relocate_section (output_bfd,
 		    }
 		}
 
-	      if (off >= (bfd_vma) -2)
+	      if (off >= (bfd_vma) -2 || (off & 1) != 0)
 		abort ();
 
 	      /* PLABELs contain function pointers.  Relocation is to
@@ -4015,6 +4041,9 @@ elf32_hppa_finish_dynamic_symbol (output
     {
       bfd_vma value;
 
+      if (h->plt.offset & 1)
+	abort ();
+
       /* This symbol has an entry in the procedure linkage table.  Set
 	 it up.
 
@@ -4045,8 +4074,8 @@ elf32_hppa_finish_dynamic_symbol (output
 	    {
 	      /* To support lazy linking, the function pointer is
 		 initialised to point to a special stub stored at the
-		 end of the .plt.  This is only done for plt entries
-		 with a non-*ABS* dynamic relocation.  */
+		 end of the .plt.  This is not done for plt entries
+		 with a base-relative dynamic relocation.  */
 	      value = (hplink->splt->output_offset
 		       + hplink->splt->output_section->vma
 		       + hplink->splt->_raw_size




From - Thu Nov 08 21:17:48 2018
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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] elflink.h (elf_bfd_final_link)
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Xref: news.gmane.org gmane.linux.ports.parisc:11135

On Mon, May 28, 2001 at 06:46:53PM +0930, amodra@one.net.au wrote:
> Not calling elf_link_output_extsym has the effect that the back-end
> finish_dynamic_symbol routine isn't called, which means various hacks
> are needed like the following:

I built a new binutils from pehc:~amodra/binutils-current, which has
this patch, and it produces a working find and make.

So, we need a new binutils, and a check for more broken binaries.
This check seems to do it, someone can roll it in to plt-checker.

for i in /bin/* /sbin/* /usr/bin/* /usr/sbin/*; do if readelf -r $i 2> /dev/null | grep -q R_PARISC_NONE; then echo ===== $i =====; fi; done

Things I know have a problem are find, make, modutils.  libmagick++5
has also been reported.  However, I don't have much installed, so
someone need to run the check over the archive, I guess.

I still have an issue with the binaries produced from a modutils
build though (e.g depmod), which still have a R_PARISC_NONE in
them.  I've tar-ed up my build tree, as pehc:~rhirst/modutilsbug.tgz
The libc, etc are as per the ones in findbug.tgz.  The binaries do
seem to work, but Alan says R_PARISC_NONE is indicative of a linker
bug.

Many thanks to Alan for his help!

Richard





From - Thu Nov 08 21:17:48 2018
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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] Re: slang.so problems
Date: Mon, 28 May 2001 15:06:38 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:11136

This still isn't solved.  If you install the slang1 and util-linux
from the archive, and do not install slang1-dev, then cfdisk will
not run:

slab:/usr/src/findutils-4.1.7# cfdisk 
cfdisk: error while loading shared libraries: cannot open shared object file: cannot load shared object file: No such file or directory
slab:/usr/src/findutils-4.1.7# ldd /sbin/cfdisk 
        libslang.so => not found
        libc.so.6 => /lib/libc.so.6 (0x4002b000)
        /lib/ld.so.1 => /lib/ld.so.1 (0x40000000)
slab:/usr/src/findutils-4.1.7# dpkg -c /share/slang1_1.4.4-2_hppa.deb 
drwxr-xr-x root/root         0 2001-04-23 04:57:55 ./
drwxr-xr-x root/root         0 2001-04-23 04:57:51 ./lib/
-rw-r--r-- root/root    471076 2001-04-23 04:57:51 ./lib/libslang.so.1.4.4
drwxr-xr-x root/root         0 2001-04-23 04:57:47 ./usr/
drwxr-xr-x root/root         0 2001-04-23 04:57:46 ./usr/lib/
drwxr-xr-x root/root         0 2001-04-23 04:57:47 ./usr/share/
drwxr-xr-x root/root         0 2001-04-23 04:57:47 ./usr/share/doc/
drwxr-xr-x root/root         0 2001-04-23 04:57:53 ./usr/share/doc/slang1/
-rw-r--r-- root/root       615 2001-02-21 02:17:28 ./usr/share/doc/slang1/NEWS
-rw-r--r-- root/root       728 2001-02-21 02:17:28 ./usr/share/doc/slang1/README
-rw-r--r-- root/root     21113 2001-02-21 02:17:29 ./usr/share/doc/slang1/changelog.gz
-rw-r--r-- root/root      2012 2001-04-23 04:55:23 ./usr/share/doc/slang1/copyright
-rw-r--r-- root/root      3503 2001-02-21 02:17:29 ./usr/share/doc/slang1/UPGRADE.txt.gz
-rw-r--r-- root/root      1872 2001-04-23 04:55:23 ./usr/share/doc/slang1/changelog.Debian.gz
lrwxrwxrwx root/root         0 2001-04-23 04:57:46 ./lib/libslang.so.1 -> libslang.so.1.4.4

We are only getting away with this because the slang1_1.4.4.0.1-1_hppa.deb
in my install tree is hacked to provide libslang.so.

Richard



On Tue, May 15, 2001 at 04:59:00PM +0100, Richard Hirst wrote:
> I have had problems relating to slang.so when building boot-floppies.
> I don't entirely understand what is going on, so I'm posting the
> facts as I see them, so others can comment.
> 
> There are three packages, slang1, slang1-dev, slang1-pic (-pic probably
> isn't relevant here).
> 
> The basic problem is that slang1 provides only libslang1.so.1 and
> libslang.so.1.4.4, but various things expect libslang.so and so
> wont run unless sland1-dev is installed.  slang1-dev provides
> libslang.so.
> 
> Things I have found that are affected are cfdisk (in util-linux),
> whiptail, and libnewt0.
> 
> As a test I installed the three slang1 packages from the debian
> archive and did "gcc -o hw hw.c -lslang; ldd hw".  I get:
> 
>         libslang.so => /usr/lib/libslang.so (0x4002b000)
>         libc.so.6 => /lib/libc.so.6 (0x400b0000)
>         libm.so.6 => /lib/libm.so.6 (0x401f4000)
>         libdl.so.2 => /lib/libdl.so.2 (0x40234000)
>         /lib/ld.so.1 => /lib/ld.so.1 (0x40000000)
> 
> If I now remove slang1-dev, and try to run hw I get
> 
> ./hw: error while loading shared libraries: libslang.so: cannot load shared object file: No such file or directory
> 
> 
> If I build my own slang1 packages and install them and then remake
> 'hw', I get
> 
>         libslang.so.1 => /lib/libslang.so.1 (0x4002b000)
>         libc.so.6 => /lib/libc.so.6 (0x400b0000)
>         libm.so.6 => /lib/libm.so.6 (0x401f4000)
>         libdl.so.2 => /lib/libdl.so.2 (0x40234000)
>         /lib/ld.so.1 => /lib/ld.so.1 (0x40000000)
> 
> and 'hw' runs fine with slang1-dev removed, as it should.
> 
> 
> cfdisk from the debain archive wont run unless slang1-dev is installed.
> If I rebuild cfdisk myself, with the debian slang1 packages installed,
> cfdisk still wants libslang.so.  If I rebuild cfdisk with my own build
> slang1 packages installed, the resulting cfdisk wants libslang.so.1,
> as it should.
> 
> So, it seems something is wrong with the slang1 packages in debian,
> and that has resulted in bad util-linux, whiptail, and libnewt0 builds.
> 
> I don't know what might have gone wrong with the debian builds, because
> when I build slang1 debs they are fine.
> 
> Can someone else try this, and, if appropriate, upload new slang*,
> util-linux, whiptail, and libnewt0 packages to the archive?
> 
> Thanks,
>   Richard
> 




From - Thu Nov 08 21:17:48 2018
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> This still isn't solved.  If you install the slang1 and util-linux
> from the archive, and do not install slang1-dev, then cfdisk will
> not run:

It doesn't look like there's a bugs.debian.org report about this.  Maltranar
is perhaps the person who could file the most informed defect report.





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> 
> someone want to tell me how to get a copy of our source tree from, say,
> May 19th?  cvs up -D'19 May 2001' is not the answer because it gets
> files off the vendor branch which is useless.

cvs -rHEAD  -D'19 May 2001'

Theoretically both a branch and a date are required because it's quite common
to have two or more branches with active files on them.  I'm surprised CVS
didn't implicitly do the '-rHEAD' thing to select the right branch, but not
terribly surprised.  The specific case of raw.h mentioned in IRC is one I'll
be looking at more closely...

	-P





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In-Reply-To: Message from Matthew Wilcox <matthew@wil.cx> 
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Xref: news.gmane.org gmane.linux.ports.parisc:11139

> 
> someone want to tell me how to get a copy of our source tree from, say,
> May 19th?  cvs up -D'19 May 2001' is not the answer because it gets
> files off the vendor branch which is useless.

Well there appear to be some interesting CVS "features" here which
are independent of the magic safe-cvsimport stuff we've done:

$ date > e
$ cvs add e
cvs add: scheduling file `e' for addition
cvs add: use 'cvs commit' to add this file permanently
$ cvs commit -mno-message e
RCS file: /tmp/cvs/b/e,v
done
Checking in e;
/tmp/cvs/b/e,v  <--  e
initial revision: 1.1
done
$ cvs up -rHEAD -Dnow e
cvs update: e is no longer in the repository
$ cvs up -Dnow e
U e
$ cvs -v
Concurrent Versions System (CVS) 1.11 (client/server)
 
So it looks like specifying date and HEAD branch (alias "trunk") together is 
hosed (other date+branches i checked work fine).  If it looks easy I'll submit 
this to the CVS folks.

I can fix our repository so willy's initial command works properly (without
the -rHEAD I proposed) by commiting an unchanged 1.2 revision for certain 
files.
They will probably require back-dating if we want retroactive date-based
check-outs to work and that will probably require me to have exclusive access
to pehc for a bit.  Another way to solve the problem is to un-import 2.2.4
from the vendor branch (untested but I think it'll work).  Suggestions?

	-P





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Subject: [parisc-linux] Palo: how-to reinstall
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Dear Matt,

I have to reinstall my root fs after some fatal mistakes. And I discover a
may25-3-wide raw and try it.

Just a problem when it try to reinstall palo (a had also this problem
before).
My system disk was already made bootable with palo and I do not want
re-format the all disk because of some other fs containing some packages and
test I do not want to loose.

Is there any tips to re-install palo on a working disk (writing 512 null
char at the beginning of the disk with dd?)?

Thanks in advance for advises,

	Joel


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From - Thu Nov 08 21:17:48 2018
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From: Paul Bame <bame@riverrock.org>
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Subject: Re: [parisc-linux] Palo: how-to reinstall
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> Dear Matt,
> 
> I have to reinstall my root fs after some fatal mistakes. And I discover a
> may25-3-wide raw and try it.
> 
> Just a problem when it try to reinstall palo (a had also this problem
> before).
> My system disk was already made bootable with palo and I do not want
> re-format the all disk because of some other fs containing some packages and
> test I do not want to loose.
> 
> Is there any tips to re-install palo on a working disk (writing 512 null
> char at the beginning of the disk with dd?)?

The palo Debian package does nothing to your disk when it is installed.  This
will eventually change I think but not soon.

Palo does not modify the disk partition table, only the contents of the F0
partition and some parameters needed by the HP boot ROM.

I do not understand your problem -- can you give more details?

	-Paul Bame






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Subject: Re: [parisc-linux] some information on apt woes
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Apt 0.4.0 repeatable problem details (may be other problems too):
(This does not look like a VM problem like 0.5.3 does in this case)

$ sudo rm /var/cache/apt/*.bin
$ sudo apt-get update
...
Fetched 1521kB in 5s (256kB/s)                     
Segmentation faultsts... 87%
$ dmesg | tail -20

do_page_fault() pid=11284 command='apt-get' type=6 address=0x322e3137
vm_start = 0x0001f000, vm_end = 0x0003c000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001111
r0-3     0000000000000000 00000000003fd700 000000004008b74b 000000000001f850
r4-7     00000000400ca8e0 0000000000026140 000000007ff01010 000000007ff00e64
r8-11    000000007ff00f60 000000007ff01020 0000000000368dee 000000007ff00dc8
r12-15   000000007ff00e60 0000000000000030 000000007ff00df8 000000007ff00df0
r16-19   000000007ff00c50 000000007ff00de4 000000007ff00c38 000000002d737061
r20-23   000000000001e5c8 0000000000000000 00000000322e3137 0000000000000001
r24-27   0000000000000001 0000000000000003 0000000000026120 000000000001d900
r28-31   0000000000000001 0000000000000000 000000007ff01100 000000004008b74b
sr0-3    00000000003fd700 00000000003fd700 0000000000000000 00000000003fd700
sr4-7    00000000003fd700 00000000003fd700 00000000003fd700 00000000003fd700

IASQ: 00000000003fd700 00000000003fd700 IAOQ: 00000000322e3137 00000000322e313b
 IIR: 43ffff80    ISR: 00000000003fd700  IOR: 000000004001f148
ORIG_R28: 0000000000127acc

Note that the IAOQ is the string "2.14" so this one looks like a wild
function pointer dereference.  The code at %rp says:

   6072c:       0d 80 10 9a     ldw  0(sr0,r12),r26
   60730:       87 40 20 2a     cmpib,=,n 0,r26,0x6074c
   60734:       0f 58 10 94     ldw  c(sr0,r26),r20
   60738:       34 19 00 06     ldi 3,r25
   6073c:       0e 90 10 96     ldw  8(sr0,r20),r22
   60740:       eb f0 11 d8     b,l 0x81034,r31
   60744:       08 1f 02 42     copy r31,rp

which goes to here, which looks like it's probably $$dyncall()

   81034:       c7 d6 c0 12     bb,*>=,n r22,1e,0x81044
   81038:       d6 c0 1c 1e     depwi 0,31,2,r22
   8103c:       0e c8 10 93     ldw  4(sr0,r22),r19
   81040:       0e c0 10 96     ldw  0(sr0,r22),r22
   81044:       ea c0 c0 00     bv r0(r22)
   81048:       6b c2 3f d1     stw rp,-18(sp)




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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
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Subject: Re: [parisc-linux] Fwd: Configure.help entries wanted
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To: Helge Deller <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:11143

I will grab CONFIG_IOMMU_CCIO.

thanks,

- Ryan

On Mon, May 28, 2001 at 09:37:51AM +0200, Helge Deller wrote:
> Hi,
> 
> I saw the following mail from lkml and thought we should feed Eric S. Raymond 
> with the necessary explanations for 
> CONFIG_IODC_CONSOLE and
> CONFIG_IOMMU_CCIO.
> 
> Anyone to volunteer for CONFIG_IOMMU_CCIO ? 
> I can take care of CONFIG_IODC_CONSOLE later today - even if it will be 
> removed later in the parisc-kernel development cycle.
> 
> Greetings,
> Helge




From - Thu Nov 08 21:17:49 2018
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From: bame@riverrock.org
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Subject: Re: [parisc-linux] Palo: how-to reinstall
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There are a couple of possible problems.

If your disk is bigger than 2Gb you will need at least palo-0.89 to
initialize it on a 32-bit box.  palo-0.90 is currently in the debian
archive and is a good choice.

The palo -U (or --update-partitioned) is not well tested and may not work
at all.

The best way to use and re-install palo is to put the right commands
in /etc/palo.conf (be sure to read how to do this properly).  Then you
can simply re-run 'palo' at any time safely.  You can also re-run
the command you used to install palo the first time.

> That is why at the beginning the only solution I found was to reformat the
> disk (fdisk) and reinstall from scratch.
> And I forgot that I have to report this problem and just keep in mind
> (abusively) that to reinstall command line (or other parameter) I have to
> reformat all my disk.

I hope you'll have better luck with palo-0.90!




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Subject: Re: [parisc-linux] Palo: how-to reinstall
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I must apologize we found a defect in palo-0.90 which prevents booting
on certain partition configurations.  palo-0.91 is just uploaded to
debian and should be available tomorrow.  I'll also upload to
puffin.external.hp.com in the regular place.  You can also use palo-0.88
if your disk is not more than 2Gb

	-P




From - Thu Nov 08 21:17:49 2018
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Subject: Re: [parisc-linux] Palo: how-to reinstall
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Xref: news.gmane.org gmane.linux.ports.parisc:11146

Even with the bad palo you can boot.

Ask your boot rom to boot interactively.  On recent boxes it's
something like this:
	boot
	y

On 712:
	boot pri ipl

Once palo is interactive, edit #0 to be:

	0/vmlinux

this boots from the recovery kernel stored in the F0 partition.

	-P




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] List of packages for hppa ISO release
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   of "Sat, 26 May 2001 10:45:55 MDT." <200105261645.KAA19506@puffin.external.hp.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:11147

Grant Grundler writes...

> Matt Taggart wrote:
> > http://puffin.external.hp.com/~taggart/selections.20010525
> > There are still a few missing dependencies but those should be taken care o
> > in the next few days. If you have additions/deletions to the list please se
> > them to me.
> 
> o ditch ipchains and add iptables instead.

Good idea but netbase depends on ipchains. I'll add iptables.

> o add cvs

We decided that cvs's debconf questions would be confusing to someone who 
didn't intend to setup a cvs repository right away. Not adding it, people can 
just get it from the archive.

> o add an irc client? (tirc? tinyirc? ircii?)

Good idea. Which one?

> o any memory or selftest tools we can include?
>   (even untested - I'm looking at x86 package that has mem/cpu test)

Good idea, but all the memory testers I've seen have been x86 specific. If 
people have specific ones they know will work for hppa then let me know.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] List of packages for hppa ISO release
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On Tue, May 29, 2001 at 02:16:28PM -0600, Matt Taggart wrote:
> > o add an irc client? (tirc? tinyirc? ircii?)
> 
> Good idea. Which one?

ircii is in nonus because it links against openssl.  i use sirc myself.

-- 
Revolutions do not require corporate support.




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From: John Galt <galt@inconnu.isu.edu>
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Subject: Re: [parisc-linux] List of packages for hppa ISO release
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On Tue, 29 May 2001, Matthew Wilcox wrote:

>On Tue, May 29, 2001 at 02:16:28PM -0600, Matt Taggart wrote:
>> > o add an irc client? (tirc? tinyirc? ircii?)
>>
>> Good idea. Which one?
>
>ircii is in nonus because it links against openssl.  i use sirc myself.

sirc is going to violate the POLS for HPUX admins migrating.  The HPPA
archive (auuugh! redundant!) lists BitchX, ircii, and blackened as IRC
clients.  BitchX looks like the _de facto_ standard one from here.

>

-- 
Here is wisdom.  Let him that hath wisdom count the number of the BSD: for
it is the number of a man; and his number is VI VI VI.
(ir-reve-rent-lations 13:17-19)
Who is John Galt?  galt@inconnu.isu.edu, that's who!





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From: Andrew Shugg <andrew@neep.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] List of packages for hppa ISO release
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Matt Taggart said:
> > o add an irc client? (tirc? tinyirc? ircii?)
> 
> Good idea. Which one?

I like epic.  It's not particularly small (the i386 package is 470k),
but it's in main (not non-US) and depends on nothing esoteric, just
libc6 and ncurses5.  It has one of the shortest bug lists of any Debian
package, too, but maybe that's just because everyone uses bitchx.  =)

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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Subject: Re: [parisc-linux] List of packages for hppa ISO release
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> sirc is going to violate the POLS for HPUX admins migrating.  The HPPA
> archive (auuugh! redundant!) lists BitchX, ircii, and blackened as IRC
> clients.  BitchX looks like the _de facto_ standard one from here.

BitchX is actually banned on some networks.




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Subject: Re: [parisc-linux] List of packages for hppa ISO release
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Andrew Shugg writes...

> Matt Taggart said:
> > > o add an irc client? (tirc? tinyirc? ircii?)
> > 
> > Good idea. Which one?
> 
> I like epic.

I just installed it and it seems to have some problems(ncurses?). I also tried 
sirc and it seems to work ok, so we'll go with that for now.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] List of packages for hppa ISO release version 2
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Hi binary-hppa addicts,

Here's version 2 of the list of packages for the ISO release. First the 
changes,

Added
-----
apt/apt-utils (thanks to Paul Bame)
binutils-hppa64
gcc-hppa64
gdb-hppa
autoconf2.13
ipmasqadm
iptables
libft-perl
libttf2
python-newt
sirc
strace
task-c++-dev
task-c-dev
task-devel-common

Removed
-------
ssh (I accidentally forgot to remove it from the last list)

Obsolete/local (installed but not in the archive)
--------------
libstdc++2.1 (known, ok)
libstdc++3.0 (known, ok) 
man-db  (?)
apt/apt-utils (needs to be uploaded to debian)
binutils-hppa64  \
gcc-hppa64        - unofficial debs, on pehc
gdb-hppa         /
termwrap (Richard's alien'd hack)

Dependency issues
-----------------
debconf pre-depends on perl-base (>= 5.6.1)
perl-modules depends on perl-base (= 5.6.1-3)
perl-modules depends on perl-base (= 5.6.1-3)
perl depends on perl-modules (= 5.6.0-21)

lwresd recommends libnss-lwres
libnss-lwres does not appear to be available


The list of packages is at,

http://puffin.external.hp.com/~taggart/selections.20010529

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






From - Thu Nov 08 21:17:49 2018
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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Using r2 for millicode return pointer
Date: Tue, 29 May 2001 22:50:46 -0600 (MDT)
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Alan,

I am cc'ing parisc-linux also, since there are other parisc gcc experts
who may have an opinion on this. For those new to this, I found a
bug where a procedure calls millicode, which on Linux uses r2 as
a return pointer, however, gcc wasn't aware of that.

It looks like the cause of this bug is that we changed the return
pointer for millicode from r31 to r2. Was this a deliberate choice?

On HP-UX, millicode uses r31 for a return pointer.  This allows leaf
routines to call millicode without having to save r2.  I notice that the
code that you patched has a clobber for r31, which is not necessary
(currently) for Linux.  Is this code shared with the HP-UX version of gcc?
If not, we should remove the r31 clobbers, since they are unecessary and
will allow more efficient usage for r31.

If this code is shared, perhaps that would be another motivation for
changing the Linux copy of the millicode to use r31, if possible (I
don't know what the motivation for using r2 was, so I don't know if
this is reasonable).

John

P.S. Thanks for the quick fix!




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Subject: [parisc-linux] Re: Using r2 for millicode return pointer
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Xref: news.gmane.org gmane.linux.ports.parisc:11155

On Tue, May 29, 2001 at 10:50:46PM -0600, John Marvin wrote:
> 
> Alan,
> 
> I am cc'ing parisc-linux also, since there are other parisc gcc experts
> who may have an opinion on this. For those new to this, I found a
> bug where a procedure calls millicode, which on Linux uses r2 as
> a return pointer, however, gcc wasn't aware of that.
> 
> It looks like the cause of this bug is that we changed the return
> pointer for millicode from r31 to r2. Was this a deliberate choice?
> 
> On HP-UX, millicode uses r31 for a return pointer.  This allows leaf
> routines to call millicode without having to save r2.  I notice that the
> code that you patched has a clobber for r31, which is not necessary
> (currently) for Linux.  Is this code shared with the HP-UX version of gcc?
> If not, we should remove the r31 clobbers, since they are unecessary and
> will allow more efficient usage for r31.
> 
> If this code is shared, perhaps that would be another motivation for
> changing the Linux copy of the millicode to use r31, if possible (I
> don't know what the motivation for using r2 was, so I don't know if
> this is reasonable).

It's a 64-bit vs. 32-bit ABI issue.  64-bit uses r2 as the return
for millicode.  See devresource.hp.com/STK/partner/pa64rt.pdf, chapter 5

-- 
Alan

PS: I was wrong about this bug affecting the 32-bit compiler.





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From: Pat Wendorf <beholder@unios.dhs.org>
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Subject: [parisc-linux] Serial Console Issues
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I'm new and mostly clueless to PA-RISC, but I recently given a 735/125
and I'm having a heck of a time trying to get the serial console to
work. I tried connecting a 9 pin crossover cable (works fine with a
Sparc 1+ serial console) to COM A at the back of the machine. I set the
term software to 9600-N81 (leaving the frame buffer in).  The term
proggie is pretty much silent except for a funny "u" character that
shows up almost instantly after I power the machine. I searched the
mailing list and found that some people needed to remove the fb from the
machine, this also produces the same result.  I pulled the watch battery
out from the main "blade" at the back for a good 15 minutes to see if
there was some sort of cmos issue, again no luck.  If it helps, the
status lights are solid and show 1, 6 and 7 on (all the rest, minus the
"on" light are off).  The two SCSI connectors on the main "blade" have
terminators plugged into them, but the result seemed the same with them
unplugged, and the machine seems to have two extra connectors in what
looks like another card on the left hand side (so much SCSI, so little
devices ;), which have nothing connected to them, so I must assume are
internally terminated. 

As I said I'm quite unfamiliar with anything HP, so this is an
experience :)

-- 

Pat Wendorf




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Xref: news.gmane.org gmane.linux.ports.parisc:11157

The CVS snapshot apt (on pehc as 0.5.3.0.90) is working fairly well
but is still having plenty of type 6 faults.  Here's details on
the one I think looks like a VM problem.

    Test case: apt-get update
	New package files must be fetched.  If there aren't any new
	files, rm /var/cache/apt/*.bin first.
    
gdb says:

    Program received signal SIGSEGV, Segmentation fault.
    0x4005fe8c in MMap::Map(FileFd&) (this=0x53fd0, Fd=@0x4fb10)
	at ../build/include/apt-pkg/fileutl.h:64
    64         inline int Fd() {return iFd;};

Register dump agrees:

do_page_fault() pid=12131 command='apt-get' type=6 address=0x4005fe8f
vm_start = 0x3ff92000, vm_end = 0x400bb000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001011
r0-3     0000000000000000 000000004011d018 000000004005fe8f 000000004011e818
r4-7     0000000000053fd0 000000000004fb10 0000000000000000 000000007ff00e58
r8-11    000000000036e2e3 000000007ff00f10 0000000000000001 000000007ff00e08
r12-15   000000007ff00c68 000000007ff00e30 000000000000000c 0000000000600000
r16-19   000000007ff00c50 000000007ff00e18 0000000000000000 000000004038c23c
r20-23   000000003ff92000 0000000000000000 000000000000000a 0000000000000001
r24-27   0000000000000001 0000000000128108 0000000000000000 000000000003e440
r28-31   000000003ff92000 0000000000000000 000000007ff01140 00000000403257ab
sr0-3    000000000000bb80 0000000000001100 0000000000000000 000000000000bb80
sr4-7    000000000000bb80 000000000000bb80 000000000000bb80 000000000000bb80

IASQ: 000000000000bb80 000000000000bb80 IAOQ: 000000004005fe8f 000000004005fe93
 IIR: 43ffff80    ISR: 000000000000bb80  IOR: 00000000404ba000
 ORIG_R28: 0000000000128108

Note the bogus "no memory mapped here" IIR.  Gdb disassembly says:

0x4005fe84 <_ZN4MMap3MapER6FileFd+104>: #   41000
0x4005fe88 <_ZN4MMap3MapER6FileFd+108>: #75590c34
0x4005fe8c <_ZN4MMap3MapER6FileFd+112>: iitlbp r0,(sr0,r0)
0x4005fe90 <_ZN4MMap3MapER6FileFd+116>: #   dc55a
0x4005fe94 <_ZN4MMap3MapER6FileFd+120>: #   20257

and other random stuff.  If I re-run in gdb (which type=15 faulted but
that's another story), disassembly of the same location shows:

0x4005fe84 <_ZN4MMap3MapER6FileFd+104>: b,l 0x4005fa48 <_end_init+184>,rp
0x4005fe88 <_ZN4MMap3MapER6FileFd+108>: stw r20,-34(sr0,sp)
0x4005fe8c <_ZN4MMap3MapER6FileFd+112>: copy ret0,r20
0x4005fe90 <_ZN4MMap3MapER6FileFd+116>: copy r3,r19
0x4005fe94 <_ZN4MMap3MapER6FileFd+120>: stw  r20,c(sr0,r4)

The function MMap::Map() is in the apt-specific shared library from which
code has been happily executing prior to the type=6 fault.  strace
shows in part (full trace at http://puffin.external.hp.com/~bame/strace.out):

msync(0x40392000, 1212680, MS_SYNC)     = 0
msync(0x40392000, 8536, MS_SYNC)        = 0
munmap(0x40392000, 6291456)             = 0
ftruncate(9, 1212680)                   = 0
newfstat(9, {st_mode=S_IFREG|0644, st_size=1212680, ...}) = 0
mmap(NULL, 1212680, PROT_READ, MAP_SHARED, 9, 0) = 0x3ff92000
--- SIGSEGV (Segmentation fault) ---

0x40392000 and fd=9 both refer to the mapped pkgcache.bin file.  So it
looks like the fault happens shortly after the file is unmapped and
then remapped read-only at a different location.  The library containing
MMap::Map() was mapped like this:

open("/home/bame/apt/build/bin/libapt-pkg-libc6.2-3.so.3.2", O_RDONLY) = 3
mmap(NULL, 1004804, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4002b000
mprotect(0x400f8000, 165124, PROT_NONE) = 0
mmap(0x40107000, 106496, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
3, 0xcc000) = 0x40107000

	-P

-------------------------------------------------------------------
$ LD_LIBRARY_PATH=$PWD ldd -v ./apt-get
        libapt-pkg-libc6.2-3.so.3.2 => /home/bame/apt/build/bin/libapt-pkg-libc6.2-3.so.3.2 (0x4002b000)
        libstdc++.so.3 => /usr/lib/libstdc++.so.3 (0x40121000)
        libm.so.6 => /lib/libm.so.6 (0x401b8000)
        libc.so.6 => /lib/libc.so.6 (0x40248000)
        /lib/ld.so.1 => /lib/ld.so.1 (0x40000000)

        Version information:
        ./apt-get:
                libc.so.6 (GLIBC_2.2) => /lib/libc.so.6
        /home/bame/apt/build/bin/libapt-pkg-libc6.2-3.so.3.2:
                libc.so.6 (GLIBC_2.2) => /lib/libc.so.6
        /usr/lib/libstdc++.so.3:
                libc.so.6 (GLIBC_2.2) => /lib/libc.so.6
        /lib/libm.so.6:
                libc.so.6 (GLIBC_2.2) => /lib/libc.so.6
        /lib/libc.so.6:
                ld.so.1 (GLIBC_2.2.3) => /lib/ld.so.1
                ld.so.1 (GLIBC_2.2) => /lib/ld.so.1





From - Thu Nov 08 21:17:50 2018
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From: Derek Wilson <derek.wilson@am.qub.ac.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Booting palinux-0.6.1-32STI ISO on HP 705 problem (failed to load
 kernel)
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Hello


First of all, thank you to everyone working on parisc-linux.

I have been asked to install linux on a few HP 700 machines. I was
recommended to try a 705 machine first as it had a CDROM and reportedly
worked well. It has 32 MB of RAM, hard disk size unknown.  It boots into
the CDE login screen without any problems, as far as I can tell. We
don't know the root password, or usernames and their passwords.

I downloaded the palinux-0.6.1-32STI.iso.gz file from
ftp://puffin.external.hp.com/pub/parisc/cd-images
and burned it to CD. I then tryed booting this CD from the CDROM on the
705 machine. It seemed to access the CDROM for a few seconds then die.
This is the output sent to the monitor


Trying scsi.2.0
Boot path initialised
Attempting to load IPL

Hard booted
palo ipl debackex@pc5158a Wed Apr 11 17:56:43 CEST 2001
0/vmlinux 2652553 bytes @ 0xafa800
0/palo-cmdline '0/vmlinux ROOT=/ TERM=linux root=/dev/scd0 console=tty
ramdisk=8192'
kernel: partition 0 file /vmlinux
ELF32 executable
Entry 00100000 first 00100000 n 5
Sement 0 load 00100000 size 1533364   mediaptr 0x1000
Sement 1 load 00278000 size 202856     mediaptr 0x178000
Sement 2 load 002ac000 size 21904       mediaptr 0x1aa000
Sement 3 load 002e4000 size 8192         mediaptr 0x1e0000
Sement 4 load 00326aa8 size 76560       mediaptr 0x1e2aa8

ERROR: Read from boot device failed (status = -4).
byteio_read: seekread() returned -1 expected 2048
ERROR: Segment 0 read() failed Fatal error loading kernel ex
failed to load kernel


From - Thu Nov 08 21:17:50 2018
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Original-X-From: looking at another boot log
http: //lists.parisc-linux.org/pipermail/parisc-linux/2001-May/012555.html
Xref: news.gmane.org gmane.linux.ports.parisc:11159

it seems that the installation dies before or when it tries to `branch
to kernel entry point 0x00100000'

Why might this be?

If I try booting from a serial console, over NFS or using rbootd will I
run into the same problem?

>From the email archive

http://lists.parisc-linux.org/pipermail/parisc-linux/2001-April/012249.html

I see that 710 machines appear to have problems with "interrupt routing
from the scsi and lan chips to the cpu". Could 705's have the same
problems (705's and 710's use the same scsi driver according to the
hardware database, so presumably they use at least very similar scsi
hardware), and is this the cause of my problem?

Any and all help will be gratefully received, on or off list.


Thanks in advance, Derek.







From - Thu Nov 08 21:17:50 2018
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From: "Pete" <plaven@ozemail.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: List of packages for hppa ISO release version 2
Date: Wed, 30 May 2001 20:58:28 +1000
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> ssh (I accidentally forgot to remove it from the last list)

Can I ask the reason why this is being taken out?



Pete.





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"Pete" wrote:
> Can I ask the reason why this is being taken out?

ssh is subject to US export restrictions. We can't export
a CD image with it either.
Debian has it in "non-us" section for the same reason - so it can be
built/distributed "off-shore". Stupid, but that's the law here, now.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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> ssh is subject to US export restrictions. We can't export
> a CD image with it either.

US export rules were significantly relaxed over the past year. The bad days
are mostly gone providing you dont ship from the USA directly to Cuba, Iraq
and other countries the US doesnt like (eg Afghanistan, except when the US
govt is sending them huge amounts of money)

Alan





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Alan Cox wrote:
> US export rules were significantly relaxed over the past year.

I can only speculate how much of that is pressure from US SW industry
vs RSA patent expiring changing the influence of lobbyists.

>  The bad days
> are mostly gone providing you dont ship from the USA directly to Cuba, Iraq
> and other countries the US doesnt like (eg Afghanistan, except when the US
> govt is sending them huge amounts of money)

Well, internet still doesn't know where Cuba begins or ends exactly...
and the USA gov knows where to find me. :^(

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: RE: [parisc-linux] Re: List of packages for hppa ISO release vers
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Howabout having the master archive in another country (like France) and all
sites in the US being mirrors of the site?  Import of cryptology into the US
is legal.  Debian has this structure as there are mirrors of non-US in the
US and Canada.

I believe this puts the burden of maintaining the ssh stuff on the master
site.  Is that untenable?

Kevin

All opinions are mine and are no way even vaguely related to my employer.

-----Original Message-----
From: Grant Grundler [mailto:grundler@puffin.external.hp.com]
Sent: Wednesday, May 30, 2001 8:19 AM
To: Alan Cox
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Re: List of packages for hppa ISO release
version 2 


Alan Cox wrote:
> US export rules were significantly relaxed over the past year.

I can only speculate how much of that is pressure from US SW industry
vs RSA patent expiring changing the influence of lobbyists.

>  The bad days
> are mostly gone providing you dont ship from the USA directly to Cuba,
Iraq
> and other countries the US doesnt like (eg Afghanistan, except when the US
> govt is sending them huge amounts of money)

Well, internet still doesn't know where Cuba begins or ends exactly...
and the USA gov knows where to find me. :^(

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253


_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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On Wed, May 30, 2001 at 04:16:03PM +0100, Alan Cox wrote:
> US export rules were significantly relaxed over the past year. The bad days
> are mostly gone providing you dont ship from the USA directly to Cuba, Iraq
> and other countries the US doesnt like (eg Afghanistan, except when the US
> govt is sending them huge amounts of money)

Debian still make the distinction (though a lawyer is being consulted
imminently, I hear).  We don't have the inclination to go through all
the lawyering ourselves at this point, so we decided to not ship non-us
packages on the CD.  There's nothing to stop anyone accessing the debian
non-us archive, where you will find ssh, ircii, krb5, lynx-ssl, apache-ssl,
gnupg, postgres and many other good things.

-- 
Revolutions do not require corporate support.




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On Wed, May 30, 2001 at 12:00:36PM -0400, CARSON,KEVIN (HP-Canada,ex1) wrote:
> Howabout having the master archive in another country (like France) and all
> sites in the US being mirrors of the site?  Import of cryptology into the US
> is legal.  Debian has this structure as there are mirrors of non-US in the
> US and Canada.

The price of bandwidth is an important factor.  ftp-master takes in 300MB
over the course of a day and then pulses that 300MB to 6 other servers
once a day.  This option has been discussed before; if you think you have
a solution, I'm sure there's an appropriate debian mailing list for it
(not sure which one though).

-- 
Revolutions do not require corporate support.




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Matthew Wilcox said:
> The price of bandwidth is an important factor.  ftp-master takes in 300MB
> over the course of a day and then pulses that 300MB to 6 other servers
> once a day.  This option has been discussed before; if you think you have
> a solution, I'm sure there's an appropriate debian mailing list for it
> (not sure which one though).

... and this year has already seen the death of one major node (Canada)
due to bandwidth costs.  =(

On www.debian.org there are the details of all the mailing lists, and
there is at least one dedicated to the maintenance of FTP mirrors - I
think it's called debian-mirror or something equally imaginative.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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In-Reply-To: <200105301519.JAA09728@puffin.external.hp.com> from "Grant Grundler" at May 30, 2001 09:19:04 AM
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> Well, internet still doesn't know where Cuba begins or ends exactly...
> and the USA gov knows where to find me. :^(

Talk to hpa@transmeta.com and quinlan@transmeta.com

They did the paperwork needed to throw crypto up on ftp.kernel.org and probably
know the right contacts





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Subject: Re: [parisc-linux] Re: List of packages for hppa ISO release version
 2
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On Wed, 30 May 2001, Grant Grundler wrote:

> "Pete" wrote:
> > Can I ask the reason why this is being taken out?
>
> ssh is subject to US export restrictions. We can't export
> a CD image with it either.
> Debian has it in "non-us" section for the same reason - so it can be
> built/distributed "off-shore". Stupid, but that's the law here, now.

Not to put too fine a point on it, but the US ITAR regulations were
relaxed over a year ago for non-commercial distribution after a
single notification.  The relevant RSA patent is expired for six
months.  Please contact me offlist if any questions -- the OpenSSH
and OpenSSL packages seem like no-brainers ...

(I am a lawyer, although not _your_ lawyer, and 'read and write
this "code" proficiently)

-- Russ





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Xref: news.gmane.org gmane.linux.ports.parisc:11170

herrold writes...

> On Wed, 30 May 2001, Grant Grundler wrote:
> 
> > "Pete" wrote:
> > > Can I ask the reason why this is being taken out?
> >
> > ssh is subject to US export restrictions. We can't export
> > a CD image with it either.
> > Debian has it in "non-us" section for the same reason - so it can be
> > built/distributed "off-shore". Stupid, but that's the law here, now.
> 
> Not to put too fine a point on it, but the US ITAR regulations were
> relaxed over a year ago for non-commercial distribution after a
> single notification.  The relevant RSA patent is expired for six
> months.  Please contact me offlist if any questions -- the OpenSSH
> and OpenSSL packages seem like no-brainers ...

My, non-legal-word-of-mouth-only, understanding is that the BXA still need to 
be contacted for each release. I'm not sure what that entails but it doesn't 
sound like freedom to me. IMHO, there's something to be said for following the 
letter of the law to make a political point.

FYI- we did decide to ship bind9 which is also in non-US because bind upstream 
has gone through the effort required for export.

Anyway given that we plan to release in the next day or so, we don't have time 
to deal with it anyway. Maybe we'll have figured it out for the next release, 
and hopefully Debian will have solved it for us before then. For now point at 
non-US.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Bdale Garbee <bdale@gag.com>
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Subject: Re: [parisc-linux] Re: List of packages for hppa ISO release vers ion 2
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kevin_carson@hp.com (CARSON,KEVIN HP-Canada,ex1) writes:

> Howabout having the master archive in another country (like France) 

France reportedly has some of the most evil crypto laws on the planet.  It
would not be a good country to host in.

The Debian project in general goes around and around about this, there's a
team seeking explicit legal guidance right now which may resolve the issue
for good.

Bdale




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From: Matthieu Delahaye <delahaym@esiee.fr>
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Subject: Re: [parisc-linux] Re: List of packages for hppa ISO release vers ion 2
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Bdale Garbee wrote:
> France reportedly has some of the most evil crypto laws on the planet.  It
> would not be a good country to host in.

You're right. To give an overview:
France signed Wassenaar accords. As an implementation of it,
France began to completely forgive using of cryptographics tools
in 1995. Then, in 1999, using  of cryptographic tools were completely
allowed to use as an authentification means. But if you want to use them
in order to keep confidential your documents/sessions, it become quite
complicated... France makes distinction between importing, exporting,
using and giving a such tool. More over law change if you use it for
private
use or for your work. So, nobody knows really what we can really can do
with
these tools but lawyers, but I haven't one.
The current debate in France is that now french government want to
certificate 
tools release by release. If it could be a great issue for commercial
software,
it is not for free software, which version numbers are changing almost
every time. 

I just give here an overview. It's more complicated than it, but it's
the essential.
If someone think US law is too restrictive, just have a look on french
law ;-)
-- 
Matthieu Delahaye
ESIEE Team
http://mkhppa1.esiee.fr/




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting palinux-0.6.1-32STI ISO on HP 705 problem (failed to load kernel)
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Xref: news.gmane.org gmane.linux.ports.parisc:11173

On Wed, May 30, 2001 at 10:51:47AM +0100, Derek Wilson wrote:
> 
> Hello
> 
> 
> First of all, thank you to everyone working on parisc-linux.
> 
> I have been asked to install linux on a few HP 700 machines. I was
> recommended to try a 705 machine first as it had a CDROM and reportedly

This is a list of machines which are known NOT to work at the moment:

Superdome
V class
T class
N class
L3000
E, F, G, H, I class
735/FWdiff
715/Scorpio {33,50,75}
705, 710, 720, 730, 750


Typical 32 bit machines in use are 712, A180, B180, B160, B132,
715/Mirage (64,80,100), ....


Richard





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From: "Sonne, Byron" <bsonne@mtsinai.on.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Toronto area, 712/60 complete system, anyone want it?
Date: Thu, 31 May 2001 10:33:33 -0400
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Greetings all, and once again thanks for all the work you've put into this.

A couple of years ago I picked up a complete 712/60 (box, 17" monitor,
keyboard, mouse, and a SCSI CDROM that actually works with it). I don't use
it anymore, it's just sitting in the closet.

If someone wants to swing by my place and pick it up, that's cool. I live a
minute away from Bathurst and Eglinton. Of course, no cost is attached, I
just want the closet space back!

Send me an email if yer interested and we can arrange a date and time.




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From: Clement MOYROUD <moyroudc@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Patch for dino serial port on B-class workstations
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This is a multi-part message in MIME format.
--------------070204050007050803040106
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Hi all !

I have made a patch for dino. It's a bit ugly, but before going on with 
a rewrite of the dino driver, I would like to have some feedback. So 
feel free to apply it on your kernel tree and give me some remarks about it.

Thanks,

Clement
ESIEE Team
mkhppa1.esiee.fr

--------------070204050007050803040106
Content-Type: text/plain;
 name="patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="patch"

diff -Nru linux.old/drivers/gsc/dino.c linux/drivers/gsc/dino.c
--- linux.old/drivers/gsc/dino.c	Thu May 31 16:56:20 2001
+++ linux/drivers/gsc/dino.c	Thu May 31 16:55:07 2001
@@ -66,6 +66,7 @@
 #include <asm/irq.h>		/* for "gsc" irq functions */
 #include <asm/gsc.h>
 
+#include "busdevice.h"
 
 #undef DINO_DEBUG
 
@@ -542,6 +543,14 @@
 	}
 }
 
+/* Here is where the dino's serial port gets its irq on B-class workstations */
+
+static int
+dino_find_irq(struct busdevice *dino_dev, struct hp_device *dev)
+{
+	return 10;
+}
+
 static void __init
 dino_bios_init(void)
 {
@@ -804,18 +813,33 @@
 }
 
 static int __init
-dino_common_init(struct dino_device *dino_dev)
+dino_common_init(struct hp_device *d, struct dino_device *dino_dev)
 {
 	int status;
 	u32 eim;
 	struct gsc_irq gsc_irq;
 	struct resource *res;
 
+	struct busdevice *dino;
+	int ret;
+
 	pcibios_register_hba((struct pci_hba_data *) dino_dev);
 
 	pci_bios = &dino_bios_ops;   /* used by pci_scan_bus() */
 	pci_port = &dino_port_ops;
 
+
+        /* Needed for the serial port to work. Quite ugly for now */
+
+	dino = kmalloc(sizeof(struct busdevice), GFP_KERNEL);
+	if(!dino)
+		return -ENOMEM;
+	
+	dino->name = "Dino";
+	dino->hpa = d->hpa;
+	dino->find_irq = dino_find_irq;
+	
+
 	/*
 	** Note: SMP systems can make use of IRR1/IAR1 registers
 	**   But it won't buy much performance except in very
@@ -859,6 +883,20 @@
 		return(1);
 	}
 
+	/* Register busdevice for the serial port */
+
+	dino->parent_irq = gsc_irq.irq;
+	dino->eim = ((u32) gsc_irq.txn_addr) | gsc_irq.txn_data;
+
+	ret = register_busdevice(d,dino);
+	if (ret) {
+	    kfree(dino);
+	    return ret;
+	}
+
+	dino->busdev_region = dino_dev->dino_region;
+	
+
 	/*
 	** This enables DINO to generate interrupts when it sees
 	** any of it's inputs *change*. Just asserting an IRQ
@@ -945,7 +983,7 @@
 		dino_bridge_init(dino_dev);
 	}
 
-	if (dino_common_init(dino_dev))
+	if (dino_common_init(d,dino_dev))
 		return(1);
 
 	/*
diff -Nru linux.old/drivers/gsc/serial.c linux/drivers/gsc/serial.c
--- linux.old/drivers/gsc/serial.c	Thu May 31 16:56:14 2001
+++ linux/drivers/gsc/serial.c	Thu May 31 16:54:57 2001
@@ -35,6 +35,7 @@
 
 #include "busdevice.h"
 
+
 static int serial_line_nr;
 
 static int __init 
@@ -87,9 +89,12 @@
 	return 0;
 }
 

From - Thu Nov 08 21:17:51 2018
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From: Miri Groentman <mirig@voltaire.com>
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Subject: [parisc-linux] Returning from a blocking select call
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I=92m writing a program in which I=92m using select in order to wait =
for socket
i/o.=20
I=92m waiting infinitely on this select call (by passing NULL as =
timeout).
Is there any way in which I can return from a blocking select call, =
other
than receiving input?
Thanks
-Miri =20





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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] Version 0.9 of PA-RISC Linux Released
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Xref: news.gmane.org gmane.linux.ports.parisc:11177

Version 0.9 of PA-RISC Linux Released

On May 31, 2001 the PA-RISC Linux development community released version
0.9, the latest version of Linux for computers using Hewlett Packard's
PA-RISC processor. This release is the result of several years of work by
developers in the Free Software community including developers from The
Debian Project, Hewlett Packard, and Linuxcare.

- Latest Debian Installer 
- Support for 32 and 64 bit systems 
- Over 4000 Debian packages 
- Full development environment 
- Support for large memory (up to 16GB)
- Ability to use Debian's apt tool to update to the latest
    package versions

The 0.9 release install CDROM images and related documentation can be found at

http://parisc-linux.org/release-0.9/

Information about PA-RISC Linux is available at

http://parisc-linux.org/

Any questions or comments about the release should be directed to the
mailing list at

parisc-linux@parisc-linux.org

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation








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Subject: Re: [parisc-linux] Version 0.9 of PA-RISC Linux Released
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On Thu, 31 May 2001, Matt Taggart wrote:

> The 0.9 release install CDROM images and related documentation can be found at
>
> http://parisc-linux.org/release-0.9/

Congratulations ...

website hint -- stolen from the FSF -- list the SIZE of the
images, to permit potential downloaders decide if it is worth
it.

hint 2:  add md5sums of the images -- both as gzipped, and of
the ISO for validation before burning, in the body of the
webpage -- must be external to the CD readme, for it would
change the values ...

-- Russ






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From: Matthieu Delahaye <delahaym@esiee.fr>
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Subject: Re: [parisc-linux] Version 0.9 of PA-RISC Linux Released
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> hint 2:  add md5sums of the images -- both as gzipped, and of
> the ISO for validation before burning, in the body of the
> webpage -- must be external to the CD readme, for it would
> change the values ...

Until the parisc-linux.org webpage is updated, you can find the
md5sums (of the gzipped format only) to the download page at our site:
http://mkhppa1.esiee.fr/en/download.html
Don't assume our md5sums are linked to the ISOs available at
parisc-linux.
We made ourself the compression (and the compression rate isn't the
same).
So they only correspond to the ISOs you can download from our site.

I'll update this afternoon (GMT+2) our site in order to be in
conformance
with the official site, and so provide ISO with exactly the same gziped
files. 
Each ISOs are 130Mo average.
-- 
Matthieu Delahaye
ESIEE Team
http://mkhppa1.esiee.fr/




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Subject: Re: [parisc-linux] Version 0.9 of PA-RISC Linux Released
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> > http://parisc-linux.org/release-0.9/
> 
> Congratulations ...

Ditto.

Im slightly perturbed that random disk corruption under load isnt in release
errata notes as you are shipping a 2.4.0 kernel.

> website hint -- stolen from the FSF -- list the SIZE of the
> images, to permit potential downloaders decide if it is worth
> it.

Its a nice layout other than that. It doesnt render on some browsers however
because you have wrongly nested tables, an extra </table> and a <div> in the
wrong place.

But at the point we are debating the website I suspect it means there are a
shortage of useful things to pick holes in ;)






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From: Jayadeep Purushothaman <jdp@india.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Version 0.9 of PA-RISC Linux Released
Date: Fri, 01 Jun 2001 15:07:43 +0530
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Hi,

Is there a way someone can ship a CD for me? I am in India, so trying to
download the ISO images will take way too much bandwidth.

Thanks,
Jayadeep

Jayadeep Purushothaman,
Hewlett Packard (ISO),
29, Cunningham Road
Bangalore - 52





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From: "Nicolai Leymann" <n.leymann@berkom.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] palinux 0.9 on 715/64 STI
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Dear all,

I've downloaded the palinux 0.9 STI image and tried to install
it on my 715/64 (the 0.6.1 STI release runs fine). But during
booting from the CD the system hangs with the following messages:

  Warning: unable to open an initial console
  loop: enabling 8 loop devices

And thats it. Any ideas? Is it possible that the images tries
to open an serial console (which is not connected)?

   Nic

--
Nicolai Leymann                   Mail:   nicolai.leymann@telekom.de
T-Nova Berkom                     Phone:  ++49-30-34973570
IP-Technologies, T33              Mobile: ++49-0170-2275345
Goslarer Ufer 35, 10589 Berlin    Fax:    ++49-30-34973571





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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] palinux 0.9 on 715/64 STI
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Hi Nicolai,

> I've downloaded the palinux 0.9 STI image and tried to install
> it on my 715/64 (the 0.6.1 STI release runs fine). But during
> booting from the CD the system hangs with the following messages:
> 
>   Warning: unable to open an initial console
>   loop: enabling 8 loop devices
Here, I tested the serial version of 0.9. That's why we said that
715/Mirage were working!
I gonna look at it...

Be careful, Richard Hirst detected that the narrowsti.conf is bugged!
You have to modify the path (narrow -> sti). Perhaps, here is athe
explanation!

I gonna publish the fixed version on the ESIEE site, stay tuned, Thomas
ESIEE Team
http://www.esiee.fr/puffin




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We plan to create a bunch of CDs for purposes like this.  We want to wait a
week or so, just to make sure the current ISOs  don't have some major
problems to be fixed.  Can you wait a bit?

Alan
 
> Is there a way someone can ship a CD for me? I am in India, 
> so trying to
> download the ISO images will take way too much bandwidth.
> 
> Thanks,
> Jayadeep
> 
> Jayadeep Purushothaman,
> Hewlett Packard (ISO),
> 29, Cunningham Road
> Bangalore - 52
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] palinux 0.9 on 715/64 STI
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Hi again Nicolai and all,
 
> > I've downloaded the palinux 0.9 STI image and tried to install
> > it on my 715/64 (the 0.6.1 STI release runs fine). But during
> > booting from the CD the system hangs with the following messages:
> >
> >   Warning: unable to open an initial console
> >   loop: enabling 8 loop devices

I just did the test. It works on my 715/80 with my new iso!

Good luck, Thomas
ESIEE Team
http://www.esiee.fr/puffin




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Subject: Re[2]: [parisc-linux] palinux 0.9 on 715/64 STI
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Hi,

Friday, June 01, 2001, 5:51:22 PM, you wrote:


TM> Hi again Nicolai and all,
TM> I just did the test. It works on my 715/80 with my new iso!
Thanks a lot, I will try it on Tuesday when I'm back to office.

   Nic





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From: Paul Bame <bame@fc.hp.com>
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Subject: Re: [parisc-linux] palinux 0.9 on 715/64 STI
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I've corrected the ISO image with the STI problem (the file /narrowsti.conf
is still wrong -- see the errata).  If you have an old copy of this ISO, you
can patch it by downloading

http://puffin.external.hp.com/pub/parisc/cd-images/palinux-0.9-32sti.iso.sector0

    and running:

dd if=palinux-0.9-32sti.iso of=palinux-0.9-32sti.iso.sector0 conv=notrunc bs=512

    *** Do Not Omit the 'conv=notrunc'!!!!




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From: Andrew Shugg <andrew@neep.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Version 0.9 of PA-RISC Linux Released
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Congratulations, team, on making the release!

I had a quick look the files which I found here:

  http://puffin.external.hp.com/pub/parisc/cd-images/

A couple of questions arose:

- what's the 142MB "gg" file dated "01-Jun-2001 10:23"?  I mean, I know
  who gg is (hi grant) but as this file is of around the same vintage as
  all the 0.9 compressed ISOs I thought I'd see if it was related

- are all the 0.9 ISOs identical except for which kernel is booted by
  default?  eg does the 0.9-32bit-STI CD image also contain the kernels
  for the 32bit-serial and 64bit-serial installs?

Oh, hang on, I see my second question is already answered by the footer
of the above HTTP directory listing, but I'll leave it in for the
archives I guess.  Answer is:


  You can change one 0.9 ISO into another by replacing the first 512
  bytes.  For example, to change the 32serial into the 64serial, do

  dd bs=512 conv=notrunc if=palinux-0.9-64serial.iso.sector0 \
  of=palinux-0.9-32serial.iso

  You probably want to rename the file too...


I see the same information is provided in a more brief form at the
bottom of the 0.9 README.  Oh well, pardon my ramblings.  ;)

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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= A couple of questions arose:
= 
= - what's the 142MB "gg" file dated "01-Jun-2001 10:23"?  I mean, I know
=   who gg is (hi grant) but as this file is of around the same vintage as
=   all the 0.9 compressed ISOs I thought I'd see if it was related

It was a temporary file I used while correcting the STI ISO.

= - are all the 0.9 ISOs identical except for which kernel is booted by
=   default?  eg does the 0.9-32bit-STI CD image also contain the kernels
=   for the 32bit-serial and 64bit-serial installs?

Yes.  the palinux-0.9-README (also in the ISOs) gives a clue how to use
the CD for other purposes.  There is a README in the cd-images directory
which tells how to turn one bootable image into another bootable image
by downloading only 512 bytes.




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Subject: [parisc-linux] ISO Mirrors
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Our web site doesn't seem to be updating from CVS so I thought I'd point
out we have 2 (known) mirrors.  If you set up a mirror we'd appreciate
ISO download figures so we can figure out which ISOs are most popular
and how popular.

    France:
	http://mkhppa1.esiee.fr/en/download.html

    HP Internal:
	http://ldl.fc.hp.com/pub/parisc/cd-images




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From: Chuck Slivkoff <charles_slivkoff@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Upgrade path from 0.6 to 0.9?
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Xref: news.gmane.org gmane.linux.ports.parisc:11191

I'll be burning a ISO image over the weekend, but I was curious. Is
there the equivalent of "apt-get dist-update" or a simple way to do this
w/ out a complete reload?

On a somewhat related note, the 712 I've been playing on has the 0.6
bits loaded & I've been doing some apt-get's, but right now I can't get
anywhere. I've tried "apt-get -f install" to try to "clean things up",
but keep getting this:

 ============================================================

dpenguin:~# apt-get -f install
Reading Package Lists... Done
Building Dependency Tree... Done
The following extra packages will be installed:
  libc6 
1 packages upgraded, 0 newly installed, 0 to remove and 51  not
upgraded.
1 packages not fully installed or removed.
Need to get 0B/4106kB of archives. After unpacking 254kB will be used.
Do you want to continue? [Y/n] 
debconf: skipping preconfiguration (apt-utils is not installed)
(Reading database ... 16349 files and directories currently installed.)
Preparing to replace libc6 2.2.1-1 (using
.../libc6_2.2.3-2.0.0.2_hppa.deb) ...
Unpacking replacement libc6 ...
dpkg: error processing
/var/cache/apt/archives/libc6_2.2.3-2.0.0.2_hppa.deb (--unpack):
 dpkg: warning - old post-removal script killed by signal (Segmentation
fault)

dpkg: error while cleaning up:
 dpkg: warning - pre-installation script killed by signal (Segmentation
fault)

Errors were encountered while processing:
 /var/cache/apt/archives/libc6_2.2.3-2.0.0.2_hppa.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

 ============================================================

And in dmesg:

 ============================================================

do_page_fault() pid=244 command='libc6.postrm' type=15
address=0x000003a4

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 00098058 00047573 000a40d0
r4-7     000003a4 000003a4 bff0021b 0000000c
r8-11    0000003d bff002d8 00000028 00000001
r12-15   00000081 00000029 00098058 00098058
r16-19   00000000 bff01708 0004fe90 00000000
r20-23   000a48d1 00000000 ffffc8bf 000a0858
r24-27   ffffffff 000a40d0 000003a4 00098058
r28-31   000a48d0 00000000 bff007c0 401cc057
sr0-3    0000002c 0000002c 00000000 0000002c
sr4-7    0000002c 0000002c 0000002c 0000002c

IASQ: 0000002c 0000002c IAOQ: 0004751b 0004751f
 IIR: 0f401014    ISR: 0000002c  IOR: 000003a4
ORIG_R28: 40235ef4

do_page_fault() pid=245 command='libc6.preinst' type=15
address=0x000003a4

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 00098058 00047573 000a40d0
r4-7     000003a4 000003a4 bff00224 0000000c
r8-11    0000003d bff002d8 00000028 00000001
r12-15   00000081 00000029 00098058 00098058
r16-19   00000000 bff01708 0004fe90 00000000
r20-23   000a48d1 00000000 ffffc8bf 000a0858
r24-27   ffffffff 000a40d0 000003a4 00098058
r28-31   000a48d0 00000000 bff007c0 401cc057
sr0-3    0000002f 0000002f 00000000 0000002f
sr4-7    0000002f 0000002f 0000002f 0000002f

IASQ: 0000002f 0000002f IAOQ: 0004751b 0004751f
 IIR: 0f401014    ISR: 0000002f  IOR: 000003a4
ORIG_R28: 40235ef4

 ============================================================

I'm thinking I need to update the kernel, but I'd like to not have to
reload this from scratch.  I can pull the kernel from the 0.9 ISO, but
PALO didn't seem to be too intuitive.

Any suggestions?

-chuck




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Upgrade path from 0.6 to 0.9?
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On Fri, Jun 01, 2001 at 05:47:47PM -0400, Chuck Slivkoff wrote:
> I'm thinking I need to update the kernel, but I'd like to not have to
> reload this from scratch.  I can pull the kernel from the 0.9 ISO, but
> PALO didn't seem to be too intuitive.

You do have to update your kernel in order to run glibc 2.2.3, due to
the changes in how stacks are managed for threads.  I don't think palo
is too unintuitive...

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] Upgrade path from 0.6 to 0.9?
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Matthew Wilcox wrote:
> 
> On Fri, Jun 01, 2001 at 05:47:47PM -0400, Chuck Slivkoff wrote:
> > I'm thinking I need to update the kernel, but I'd like to not have to
> > reload this from scratch.  I can pull the kernel from the 0.9 ISO, but
> > PALO didn't seem to be too intuitive.
> 
> You do have to update your kernel in order to run glibc 2.2.3, due to
> the changes in how stacks are managed for threads.  I don't think palo
> is too unintuitive...

RTFM, I know. I updated the kernel from the ISO image (mounted via
loopback on a RH 7.0 system) and I was able to fix the problem I was
having. I added the ISO image to "sources.list" & have "apt-get upgrade"
running so far without a hitch.

Wahoo!

-chuck

P.S. The confustion I had about PALO, was wether or not it needed to be
run (like LILO) after changing /boot/vmlinux. The answer, BTW, is "no".




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From: "Jim Buttafuoco" <jim@buttafuoco.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] .9 install problems on a 735
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I am trying to install the .9 CD image via NFS on my 735.  The system
boots into the installer fine.  I partitioned my disk and then the
installed downloaded some packages.  After the download was complete the
screen is displays a message "Installing essential packages".  I have
left it there for over an hour now.  Is this normal.  If not what can I
do...

Thanks
Jim





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] .9 install problems on a 735
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Xref: news.gmane.org gmane.linux.ports.parisc:11195

On Sat, Jun 02, 2001 at 12:56:03PM -0400, Jim Buttafuoco wrote:
> I am trying to install the .9 CD image via NFS on my 735.  The system
> boots into the installer fine.  I partitioned my disk and then the
> installed downloaded some packages.  After the download was complete the
> screen is displays a message "Installing essential packages".  I have
> left it there for over an hour now.  Is this normal.  If not what can I
> do...

Hi Jim,
  That is not normal, 5 or 10 minutes on a slow machine at most, I'd
guess.

The installer runs a script called debootstrap which downloads the
packages and then unpacks and configures them.  Sounds line something
has hung in the process.

I had it hang on my 715/old, because of problems with the alignment
of locks in glibc 2.2.1.  The installer is based on glibc 2.2.1 at
the moment, although you would typically upgrade to glibc 2.2.3
(which is also on the CD), after install.  That problem is processor
specific, and I wouldn't have expected it to affect the 735.

The base install uses slightly dated packages, because we had to
freeze the base package set early to have any chance of making the
installer work in time for release.

To find at what point it has hung the easiest thing to do is to
invoke debootstrap from a shell, rather than have the installer
do it automatically.  That way you see all the output.

You may just be able to ctrl-c back the the start of the installer,
otherwise start again.  Get to the point where the installer has
mounted your nfs source for you (I selected nfs source, and then
cancel when it asked me to choose the directory to install from).
Now scroll down the menu to 'execute a shell'.

You can use 'mount' and 'ls' to check that your nfs mount is ok.
Now do something like:

  debootstrap sid /target file:/instmnt/debian

/target is where the partition you are installing to is mounted.
There may be one or two prompts you have to hit return on, but
you should see a fairly steady stream of messages until

  I: Successfully completed
  umount: /dev/pts: not found

IIRC, my 715/old hung on unpacking or setting up ncurses5.

There are plenty of error msgs/warnings in the output, because
of unmet dependencies, etc, but debootstrap loops round a
number of times until everything is unpacked and configured and
dependencies are satisfied.

Let us know where it hangs,

Richard





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Subject: [parisc-linux] scorpios
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I want to know if you're planning to support the scoprio series (715-33,715-50....),
because I own some and have to decide if I should wait for linux beeing ready to run them or if I should install OpenBSD.

greetings...






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INGE2000@kjo.de wrote:

> I want to know if you're planning to support the scoprio series (715-33,715-50....),
> because I own some and have to decide if I should wait for linux beeing ready to run them or if I should install OpenBSD.
>
> greetings...

hmm.. I dont think OpenBSD runs on PA-RISC, there was some effort, but the project seems to be dead(?)..

andreas






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Subject: Re: [parisc-linux] Patch for dino serial port on B-class workstations
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To: Clement MOYROUD <moyroudc@esiee.fr>
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Clement MOYROUD wrote:
> Hi all !
> 
> I have made a patch for dino. It's a bit ugly, but before going on with 
> a rewrite of the dino driver, I would like to have some feedback.

Clement! This is great!

Could you explain why you think yuo need to rewrite the dino driver?
This is basically how I expected it to work.

>  So 
> feel free to apply it on your kernel tree and give me some remarks about it.

I've neither applied nor tested it.

> diff -Nru linux.old/drivers/gsc/dino.c linux/drivers/gsc/dino.c
> --- linux.old/drivers/gsc/dino.c	Thu May 31 16:56:20 2001
> +++ linux/drivers/gsc/dino.c	Thu May 31 16:55:07 2001
> @@ -66,6 +66,7 @@
>  #include <asm/irq.h>		/* for "gsc" irq functions */
>  #include <asm/gsc.h>
>  
> +#include "busdevice.h"
>  
>  #undef DINO_DEBUG
>  
> @@ -542,6 +543,14 @@
>  	}
>  }
>  
> +/* Here is where the dino's serial port gets its irq on B-class workstations
>    */
> +
> +static int
> +dino_find_irq(struct busdevice *dino_dev, struct hp_device *dev)
> +{

Some upper portion of the address bits are already validated
but the code in bus_device.c.  Need to valid some of the lower
address bits here.

Want to make sure it's really the serial device that we want
to talk to and not the PS/2 port or "fire extinguisher" (only
used on 743 or Hitachi box, I forgot).


> +	return 10;
> +}
> +
>  static void __init
>  dino_bios_init(void)
>  {
> @@ -804,18 +813,33 @@
>  }
>  
>  static int __init
> -dino_common_init(struct dino_device *dino_dev)
> +dino_common_init(struct hp_device *d, struct dino_device *dino_dev)
>  {
>  	int status;
>  	u32 eim;
>  	struct gsc_irq gsc_irq;
>  	struct resource *res;
>  
> +	struct busdevice *dino;

Please call this dino_busdev or something like that to differentiate
it from the other "dino" data structures.

> +	int ret;
> +
>  	pcibios_register_hba((struct pci_hba_data *) dino_dev);
>  
>  	pci_bios = &dino_bios_ops;   /* used by pci_scan_bus() */
>  	pci_port = &dino_port_ops;
>  
> +
> +        /* Needed for the serial port to work. Quite ugly for now */
> +
> +	dino = kmalloc(sizeof(struct busdevice), GFP_KERNEL);
> +	if(!dino)
> +		return -ENOMEM;
> +	
> +	dino->name = "Dino";
> +	dino->hpa = d->hpa;
> +	dino->find_irq = dino_find_irq;

I don't think this in an ugly hack.
Overall, this is how I expected it to work.
Might not even need to fill in the rest of the functions
in the bus_device jump table.

> +	
> +
>  	/*
>  	** Note: SMP systems can make use of IRR1/IAR1 registers
>  	**   But it won't buy much performance except in very

offhand, the rest looks ok.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Version 0.9 of PA-RISC Linux Released
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Andrew Shugg wrote:
> - what's the 142MB "gg" file dated "01-Jun-2001 10:23"?  I mean, I know
>   who gg is (hi grant) but as this file is of around the same vintage as
>   all the 0.9 compressed ISOs I thought I'd see if it was related

Not mine.
-rw-r--r--   1 bame     cvsusers 148707328 Jun  1 10:23 gg

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: Re: [parisc-linux] scorpios
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On Sun, Jun 03, 2001 at 12:03:31AM +0200, INGE2000@kjo.de wrote:
> I want to know if you're planning to support the scoprio series (715-33,715-50....),
> because I own some and have to decide if I should wait for linux beeing ready to run them or if I should install OpenBSD.

I have a 715/75 (Scorpio Sr.), which has worked in the past, but doesn't
work just now.  Believed to be a glibc 2.2.1 problem.  I'd expect this
class of machiens to start working again once I roll a glibc 2.2.3 based
base install system.

Richard





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Subject: Re: [parisc-linux] .9 install problems on a 735
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Xref: news.gmane.org gmane.linux.ports.parisc:11201

On Sat, Jun 02, 2001 at 05:12:56PM -0400, Jim Buttafuoco wrote:
> Richard,
> 
> It worked this way,  so I tried it again via the menus,  it still hung
> for a VERY long time and didn't finish.  Other than the debootstrap.log
> log file is there any way to debug this...

I don't have any ideas at the moment, I'll get back you if I think
of something.

If it worked invoking debootstrap manually, I guess you might be able
to complete the install, by selecting 'configure the base system',
'make system bootable' and 'reboot system' from the menu.  Havn't
tried that myself though.

When debootstrap is invoked directly from the installer it writes
a log to /target/tmp/debootstrap.log (i.e. tmp on the installed
system).  Can you get at that somehow and tell us what it contains?
probably just the last few lines will be enough.  You might be able
to ctrl-c back to the menu once it has hung, and then execute a
shell. Otherwise restart the installer, execute a shell, and mount
the partition.

Richard


> 
> Let me know
> Jim
> 
> > On Sat, Jun 02, 2001 at 12:56:03PM -0400, Jim Buttafuoco wrote:
> > > I am trying to install the .9 CD image via NFS on my 735.  The
> system
> > > boots into the installer fine.  I partitioned my disk and then the
> > > installed downloaded some packages.  After the download was complete
> the
> > > screen is displays a message "Installing essential packages".  I
> have
> > > left it there for over an hour now.  Is this normal.  If not what
> can I
> > > do...
> > 
> > Hi Jim,
> >   That is not normal, 5 or 10 minutes on a slow machine at most, I'd
> > guess.
> > 
> > The installer runs a script called debootstrap which downloads the
> > packages and then unpacks and configures them.  Sounds line something
> > has hung in the process.
> > 
> > I had it hang on my 715/old, because of problems with the alignment
> > of locks in glibc 2.2.1.  The installer is based on glibc 2.2.1 at
> > the moment, although you would typically upgrade to glibc 2.2.3
> > (which is also on the CD), after install.  That problem is processor
> > specific, and I wouldn't have expected it to affect the 735.
> > 
> > The base install uses slightly dated packages, because we had to
> > freeze the base package set early to have any chance of making the
> > installer work in time for release.
> > 
> > To find at what point it has hung the easiest thing to do is to
> > invoke debootstrap from a shell, rather than have the installer
> > do it automatically.  That way you see all the output.
> > 
> > You may just be able to ctrl-c back the the start of the installer,
> > otherwise start again.  Get to the point where the installer has
> > mounted your nfs source for you (I selected nfs source, and then
> > cancel when it asked me to choose the directory to install from).
> > Now scroll down the menu to 'execute a shell'.
> > 
> > You can use 'mount' and 'ls' to check that your nfs mount is ok.
> > Now do something like:
> > 
> >   debootstrap sid /target file:/instmnt/debian
> > 
> > /target is where the partition you are installing to is mounted.
> > There may be one or two prompts you have to hit return on, but
> > you should see a fairly steady stream of messages until
> > 
> >   I: Successfully completed
> >   umount: /dev/pts: not found
> > 
> > IIRC, my 715/old hung on unpacking or setting up ncurses5.
> > 
> > There are plenty of error msgs/warnings in the output, because
> > of unmet dependencies, etc, but debootstrap loops round a
> > number of times until everything is unpacked and configured and
> > dependencies are satisfied.
> > 
> > Let us know where it hangs,
> > 
> > Richard
> > 
> > 
> 
> 




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On Sat, Jun 02, 2001 at 05:31:33PM -0400, Jim Buttafuoco wrote:
> Richard,
> 
> Here is my /var/log/messages file, there are a few errors in it.  

Nothing to worry about here, all the 'expr' and '[' errors are
because of missing features in our build of busybox, so everyone
will be seeing those.

Richard


> Apr 27 14:48:52 (none)  syslogd started: BusyBox v0.51
> (2001.05.18-08:42+0000)
> Apr 27 14:50:57 (none) user.info dbootstrap[34]: mounting /dev/sda2 at
> /target
> Apr 27 14:51:09 (none) user.info dbootstrap[34]: mounting /dev/sda4 at
> /target/usr
> Apr 27 14:51:26 (none) daemon.info dhclient-2.2.x: Internet Software
> Consortium DHCP Client 2.0pl5
> Apr 27 14:51:26 (none) user.info dbootstrap[34]: Internet Software
> Consortium DHCP Client 2.0pl5 
> Apr 27 14:51:26 (none) daemon.info dhclient-2.2.x: Copyright 1995, 1996,
> 1997, 1998, 1999 The Internet Software Consortium.
> Apr 27 14:51:26 (none) user.info dbootstrap[34]: Copyright 1995, 1996,
> 1997, 1998, 1999 The Internet Software Consortium. 
> Apr 27 14:51:26 (none) daemon.info dhclient-2.2.x: All rights reserved.
> Apr 27 14:51:26 (none) user.info dbootstrap[34]: All rights reserved. 
> Apr 27 14:51:26 (none) daemon.info dhclient-2.2.x: 
> Apr 27 14:51:26 (none) user.info dbootstrap[34]:  
> Apr 27 14:51:26 (none) daemon.info dhclient-2.2.x: Please contribute if
> you find this software useful.
> Apr 27 14:51:26 (none) user.info dbootstrap[34]: Please contribute if
> you find this software useful. 
> Apr 27 14:51:26 (none) daemon.info dhclient-2.2.x: For info, please
> visit http://www.isc.org/dhcp-contrib.html
> Apr 27 14:51:26 (none) user.info dbootstrap[34]: For info, please visit
> http://www.isc.org/dhcp-contrib.html 
> Apr 27 14:51:26 (none) daemon.info dhclient-2.2.x: 
> Apr 27 14:51:26 (none) user.info dbootstrap[34]:  
> Apr 27 14:51:26 (none) user.info dbootstrap[34]: expr: not found 
> Apr 27 14:51:26 (none) user.info dbootstrap[34]: expr: not found 
> Apr 27 14:51:26 (none) user.info dbootstrap[34]: expr: not found 
> Apr 27 14:51:26 (none) user.info dbootstrap[34]: [: 2: unexpected
> operator 
> Apr 27 14:51:26 (none) user.info dbootstrap[34]: [: 2: unexpected
> operator 
> Apr 27 14:51:27 (none) daemon.info dhclient-2.2.x: Listening on
> LPF/eth0/08:00:09:48:34:29
> Apr 27 14:51:27 (none) user.info dbootstrap[34]: Listening on
> LPF/eth0/08:00:09:48:34:29 
> Apr 27 14:51:27 (none) daemon.info dhclient-2.2.x: BOOTREPLY from
> 192.1.3.13
> Apr 27 14:51:27 (none) user.info dbootstrap[34]: BOOTREPLY from
> 192.1.3.13 
> Apr 27 14:51:28 (none) user.info dbootstrap[34]: expr: not found 
> Apr 27 14:51:28 (none) user.info dbootstrap[34]: expr: not found 
> Apr 27 14:51:28 (none) user.info dbootstrap[34]: expr: not found 
> Apr 27 14:51:28 (none) user.info dbootstrap[34]: expr: not found 
> Apr 27 14:51:28 (none) user.info dbootstrap[34]: expr: not found 
> Apr 27 14:51:28 (none) user.info dbootstrap[34]: expr: not found 
> Apr 27 14:51:28 (none) user.info dbootstrap[34]: expr: not found 
> Apr 27 14:51:28 (none) user.info dbootstrap[34]: expr: not found 
> Apr 27 14:51:28 (none) user.info dbootstrap[34]: expr: not found 
> Apr 27 14:51:28 (none) user.info dbootstrap[34]: [: 2: unexpected
> operator 
> Apr 27 14:51:28 (none) user.info dbootstrap[34]: [: 2: unexpected
> operator 
> Apr 27 14:51:28 (none) daemon.info dhclient-2.2.x: bound to 192.1.3.113
> -- renewal in 8000 seconds.
> Apr 27 14:51:28 (none) user.info dbootstrap[34]: bound to 192.1.3.113 --
> renewal in 8000 seconds. 
> Apr 27 14:51:28 (none) user.err dbootstrap[34]: The network has been
> successfully configured using DHCP/BOOTP.
> Apr 27 14:51:42 (none) user.info dbootstrap[34]: palo version 0.86
> bame@palinux Fri May 11 16:10:24 MDT 2001 




From - Thu Nov 08 21:17:53 2018
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Subject: [parisc-linux] Kernel update?
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Hello!

When are you going to update the kernel? Or is pa-risc stuff merged to the
2.4.5 for example?


- Pasi K=E4rkk=E4inen


                                   ^
                                .     .
                                 Linux
                              /    -    \
                             Choice.of.the
                           .Next.Generation.





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Subject: [parisc-linux] Failed boot on D310
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I've got a D310 with a 100mhz processor and 128 megs of RAM. I tried to
boot the ISO version 0.9 last night, but it crashed on boot. I can get the
exact error messages, it looked like a register dump. 

Is there any reason to assume that this will or won't boot?

dave


-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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Xref: news.gmane.org gmane.linux.ports.parisc:11205

On Sun, Jun 03, 2001 at 08:33:23AM -0500, djweis@sjdjweis.com wrote:
> 
> I've got a D310 with a 100mhz processor and 128 megs of RAM. I tried to
> boot the ISO version 0.9 last night, but it crashed on boot. I can get the
> exact error messages, it looked like a register dump. 
> 
> Is there any reason to assume that this will or won't boot?

Listed as untested on http://parisc-linux.org/release-0.9/systems.html
Are you trying the serial or sti image?  If you can use serial, and
get you terminal emulator to capture the boot messages and crash for us,
that would help.

Thanks,
  Richard





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Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] dead keyboard after booting 0.61 STI32 iso on 
 a  715/100
Date: Sun, 3 Jun 2001 17:25:48 +0200 (CEST)
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% Just for the record,
% Have identical behaviour with c110, with ps/2 keyboard&mouse.
% Tried 0.6 and 0.6.1, both freezes after the login prompt.....
found the solution :) its pretty dunb though

the problem is that 0.6 and 0.61 gives "console=tty" to the kernel on
boot, instead of "console=tty0" (as in 0.9)

tried to boot 0.61 (used palo to modify console=tty to tty0) and it works
flawlessly. ok lets say i was able to bring up eth0 and nfsmount the 0.9
iso remotely on my linux box. aint got a cd burner here at home so i
should use nfs somehow. 

anyways i found no up2date NFS howtos on the
web, but an old one (2000.02) and somehow the nfsroot=mynfsserverip 
approach seemed to be not working.. gave me stupid read and seek error codes. 

anyways can i use the same lif images/kernels to boot from nfs? i dont
feel like building a cross compiler environment just for this.
if not - if would be nice to provide nfsboot capable kernel images for the
cdless people.

the sti console works fine and everything seems to be ok. this is a
715/100. see if i can copy the 0.9 over and make it working

regards,

--
diab






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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] dead keyboard after booting 0.61 STI32 iso on a  715/100
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Xref: news.gmane.org gmane.linux.ports.parisc:11207

The 0.9 release CD does allow you to boot over the network and then
install to a local disk via nfs or http, at least.  The file you
boot is a 'lifimage', and in this case contains a kernel and
ramdisk.  To quote the README on the 0.9 CD:

> The contents of this CD can be used to do network installs on any
> supported system.  To do that, you need to make the CD contents
> available over the network.  Acces via http and nfs have been tested.
> In addition, you need to boot the relevant lifimage file over the
> network to start the install proceedure.  The lifimages are
> 
> debian/dists/sid/main/disks-hppa/current/wide/serial/lifimage
> debian/dists/sid/main/disks-hppa/current/narrow/serial/lifimage
> debian/dists/sid/main/disks-hppa/current/sti/lifimage
> 
> Choose the appropriate one for your needs.  Most machines do a network
> boot via bootp, but some older machines use rbootd.  If you cannot
> find rbootd please visit our web site.
> 
> Installing from the network is a little more involved than from CD, as
> you have to specify more details regarding the archive location.  The
> path you specify for loading kernel and modules should be one of
> ..../current/narrow, ..../current/wide, or ..../current/sti.  The path
> you specify for installing the base system should be ..../debian.

Hope that helps.

Richard.


On Sun, Jun 03, 2001 at 05:25:48PM +0200, diab wrote:
> % Just for the record,
> % Have identical behaviour with c110, with ps/2 keyboard&mouse.
> % Tried 0.6 and 0.6.1, both freezes after the login prompt.....
> found the solution :) its pretty dunb though
> 
> the problem is that 0.6 and 0.61 gives "console=tty" to the kernel on
> boot, instead of "console=tty0" (as in 0.9)
> 
> tried to boot 0.61 (used palo to modify console=tty to tty0) and it works
> flawlessly. ok lets say i was able to bring up eth0 and nfsmount the 0.9
> iso remotely on my linux box. aint got a cd burner here at home so i
> should use nfs somehow. 
> 
> anyways i found no up2date NFS howtos on the
> web, but an old one (2000.02) and somehow the nfsroot=mynfsserverip 
> approach seemed to be not working.. gave me stupid read and seek error codes. 
> 
> anyways can i use the same lif images/kernels to boot from nfs? i dont
> feel like building a cross compiler environment just for this.
> if not - if would be nice to provide nfsboot capable kernel images for the
> cdless people.
> 
> the sti console works fine and everything seems to be ok. this is a
> 715/100. see if i can copy the 0.9 over and make it working
> 
> regards,
> 
> --
> diab
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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Subject: Re: [parisc-linux] Failed boot on D310
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Xref: news.gmane.org gmane.linux.ports.parisc:11208

On Sun, 3 Jun 2001, Richard Hirst wrote:
> On Sun, Jun 03, 2001 at 08:33:23AM -0500, djweis@sjdjweis.com wrote:
> > I've got a D310 with a 100mhz processor and 128 megs of RAM. I tried to
> > boot the ISO version 0.9 last night, but it crashed on boot. I can get the
> > exact error messages, it looked like a register dump. 
> > 
> > Is there any reason to assume that this will or won't boot?
> Listed as untested on http://parisc-linux.org/release-0.9/systems.html
> Are you trying the serial or sti image?  If you can use serial, and
> get you terminal emulator to capture the boot messages and crash for us,
> that would help.

It's headless, I was using the serial image. Below is my terminal output

Main Menu: Enter command > search
Searching for potential boot
device(s)...                                       This may take several
minutes.                                                                                                                                  To
discontinue search, press any key (termination may not be
immediate).                                                                                                                                                                           Path
Number        Device Path (dec)        Device Type
-----------        -----------------        -----------
P0                 4.5                      Random access media
P1                 4.11                     Random access media
P2                 4.10                     Random access media
P3                 4.9                      Random access media
P4                 4.8                      Random access media
P5                 16/5.2                   Random access media
P6                 16/5.0                   Sequential access media
P7                 16/6.0                   LAN Module
Main Menu: Enter command > boot P5
Interact with IPL (Y or N)?> n

Booting...                                                                      
Boot IO Dependent Code (IODC) revision 1
WARN 80F9
Cannot find ENTRY_TEST.
WARN 80F7
         Failed I/O operation with
ENTRY_IO
Status = -4                                                                     

00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00004001 00000028 E8040782 01000084 800400DC 00000000 0025F040 00000000
98080000 0000DA2C 0000DA2C 00000000 00000002 00000003 00000011 00000005
WARN C7F0
Error Reading IPL

Thanks for any help.

dave


-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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Subject: Re: [parisc-linux] Failed boot on D310
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Xref: news.gmane.org gmane.linux.ports.parisc:11209

On Sun, Jun 03, 2001 at 12:41:46PM -0500, djweis@sjdjweis.com wrote:
> 
> On Sun, 3 Jun 2001, Richard Hirst wrote:
> > On Sun, Jun 03, 2001 at 08:33:23AM -0500, djweis@sjdjweis.com wrote:
> > > I've got a D310 with a 100mhz processor and 128 megs of RAM. I tried to
> > > boot the ISO version 0.9 last night, but it crashed on boot. I can get the
> > > exact error messages, it looked like a register dump. 
> > > 
> > > Is there any reason to assume that this will or won't boot?
> > Listed as untested on http://parisc-linux.org/release-0.9/systems.html
> > Are you trying the serial or sti image?  If you can use serial, and
> > get you terminal emulator to capture the boot messages and crash for us,
> > that would help.
> 
> It's headless, I was using the serial image. Below is my terminal output
> 
> Main Menu: Enter command > search
> Searching for potential boot
> device(s)...                                       This may take several
> minutes.                                                                                                                                  To
> discontinue search, press any key (termination may not be
> immediate).                                                                                                                                                                           Path
> Number        Device Path (dec)        Device Type
> -----------        -----------------        -----------
> P0                 4.5                      Random access media
> P1                 4.11                     Random access media
> P2                 4.10                     Random access media
> P3                 4.9                      Random access media
> P4                 4.8                      Random access media
> P5                 16/5.2                   Random access media
> P6                 16/5.0                   Sequential access media
> P7                 16/6.0                   LAN Module
> Main Menu: Enter command > boot P5
> Interact with IPL (Y or N)?> n
> 
> Booting...                                                                      
> Boot IO Dependent Code (IODC) revision 1
> WARN 80F9
> Cannot find ENTRY_TEST.
> WARN 80F7
>          Failed I/O operation with
> ENTRY_IO
> Status = -4                                                                     
> 
> 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00004001 00000028 E8040782 01000084 800400DC 00000000 0025F040 00000000
> 98080000 0000DA2C 0000DA2C 00000000 00000002 00000003 00000011 00000005
> WARN C7F0
> Error Reading IPL

Ah, I'd assumed it got as far as starting the kernel and then the
kernel crashed.  In this case I think it has failed reading the
CD.  Can you read the CD on some other system to check it burned
ok?  Are you confident that the CD drive is P5 and is working?

An alternative is to boot the relevant lifimage over the network,
and then either install from the network or from the CD (if the
net booted kernel sees the CD).  See the REAME on the CD for details.

Richard





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From: diab <diab@diab.rulez.org>
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Subject: [parisc-linux] wierd shell behaviour
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I got the latest 0.9 cd image installed and apt-get upgrade'd everything

I was trying to compile BitchX, configure runs ok and on make it
stops:

# make
cd source \
  &&  'local_dir=/root' 'INSTALL_IRC=/usr/local/bin/BitchX'
'IRCLIB=/usr/local/lib/bx' 'CC=gcc' 'CFLAGS=-O2 -Wall -g '
'HELPDIR=/usr/local/lib/bx/help' 'INSTALL_WSERV=/usr/local/lib/bx/wserv'
'IRCPATH=~/.BitchX:~/.BitchX/plugins:.:/usr/local/lib/bx/plugins:/usr/local/lib/bx/script:/usr/local/lib/bx'
'TRANSLATION_PATH=/usr/local/lib/bx/translation' 'LDFLAGS=' 'LIBS=-lcrypt
-lm -lncurses -lresolv ' 'LN=ln -s' 'RM=rm -f' 'TCL_SRCS=' 'TCL_OBJS='
'CD_PLAY=' 'CD_SRCS=' 'CD_OBJS=' 'TCL_LIBS='
'PLUGINDIR=/usr/local/lib/bx/plugins' '_VERSION_=BitchX'
'VERSION=BitchX-1.0c18' 'INSTALL_DATA=/usr/bin/install -c -m 644'
'INSTALL_SCRIPT=/usr/local/lib/bx/script' 'EXEEXT=' 'SHLIB_CFLAGS='
'SHLIB_SUFFIX=.so' all
/bin/sh: local_dir=/root: No such file or directory

as you can see the shell tries to run 'local_dir=/root' instead of
evaluating it. i was able to compile the binary "on my
own", but any1 knows how to change this behaviour? 

sh is symlinked to bash, and it is:
GNU bash, version 2.05.0(1)-release (hppa-unknown-linux-gnu)

anyways (tried the same bitchx 1.0c18 source) it works on an
i386 pc, same debian/shell:
GNU bash, version 2.05.0(1)-release (i386-pc-linux-gnu)

regards,

-- 
diab 
		





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> 
> I got the latest 0.9 cd image installed and apt-get upgrade'd everything
> 
> I was trying to compile BitchX, configure runs ok and on make it
> stops:
> 
> # make
> cd source \
>   &&  'local_dir=/root' 'INSTALL_IRC=/usr/local/bin/BitchX' [...]
> 'SHLIB_SUFFIX=.so' all
> /bin/sh: local_dir=/root: No such file or directory

Looks like something is missing after the && -- like 'make'?  Check
your x86 box I guess.

This may be unrelated, but many packages have an older version of
config.guess/config.sub which does not understand parisc.




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> When are you going to update the kernel? Or is pa-risc stuff merged to the
> 2.4.5 for example?

We're merging from 2.4.0 to 2.4.5 soon :-)

	-P




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Subject: Re: [parisc-linux] Patch for dino serial port on B-class workstations
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Xref: news.gmane.org gmane.linux.ports.parisc:11213

> Clement MOYROUD wrote:
> > Hi all !
> >
> > I have made a patch for dino. It's a bit ugly, but before going on with
> > a rewrite of the dino driver, I would like to have some feedback.
>
> Clement! This is great!
>
> Could you explain why you think yuo need to rewrite the dino driver?
> This is basically how I expected it to work.
>

I think (as well as the other members of the ESIEE team) that the dino
driver has not been written in order to "comply" with some sort of a GSC
driver standard - i.e. it could make use of the register_busdevice instead
of requiring it's own irq region (e.g. lasi). I have started to do this, but
it would require some modifications of the busdevice structure to add some
support for the pci-specific part of dino. With this modification of the
busdevice struct (and some other functions), I would be much more clean.....
But if you think it's clear enough, I've got other things to do :)

> >  So
> > feel free to apply it on your kernel tree and give me some remarks about
it.
>
> I've neither applied nor tested it.
>
> > diff -Nru linux.old/drivers/gsc/dino.c linux/drivers/gsc/dino.c
> > --- linux.old/drivers/gsc/dino.c Thu May 31 16:56:20 2001
> > +++ linux/drivers/gsc/dino.c Thu May 31 16:55:07 2001
> > @@ -66,6 +66,7 @@
> >  #include <asm/irq.h> /* for "gsc" irq functions */
> >  #include <asm/gsc.h>
> >
> > +#include "busdevice.h"
> >
> >  #undef DINO_DEBUG
> >
> > @@ -542,6 +543,14 @@
> >  }
> >  }
> >
> > +/* Here is where the dino's serial port gets its irq on B-class
workstations
> >    */
> > +
> > +static int
> > +dino_find_irq(struct busdevice *dino_dev, struct hp_device *dev)
> > +{
>
> Some upper portion of the address bits are already validated
> but the code in bus_device.c.  Need to valid some of the lower
> address bits here.
>
> Want to make sure it's really the serial device that we want
> to talk to and not the PS/2 port or "fire extinguisher" (only
> used on 743 or Hitachi box, I forgot).
>
>

As I wrote, it's something that works on a b132/180, and I didn't check in
the hardware database to see if it is in use in other workstations. But I
know I'll have to make some tests to find which irq return....

> > + return 10;
> > +}
> > +
> >  static void __init
> >  dino_bios_init(void)
> >  {
> > @@ -804,18 +813,33 @@
> >  }
> >
> >  static int __init
> > -dino_common_init(struct dino_device *dino_dev)
> > +dino_common_init(struct hp_device *d, struct dino_device *dino_dev)
> >  {
> >  int status;
> >  u32 eim;
> >  struct gsc_irq gsc_irq;
> >  struct resource *res;
> >
> > + struct busdevice *dino;
>
> Please call this dino_busdev or something like that to differentiate
> it from the other "dino" data structures.
>

I agree it might not be that clear. In fact, my future plans are to use only
one struct (bye-bye  struct dino_device !), and I didn't take care of the
clarity of this....

> > + int ret;
> > +
> >  pcibios_register_hba((struct pci_hba_data *) dino_dev);
> >
> >  pci_bios = &dino_bios_ops;   /* used by pci_scan_bus() */
> >  pci_port = &dino_port_ops;
> >
> > +
> > +        /* Needed for the serial port to work. Quite ugly for now */
> > +
> > + dino = kmalloc(sizeof(struct busdevice), GFP_KERNEL);
> > + if(!dino)
> > + return -ENOMEM;
> > +
> > + dino->name = "Dino";
> > + dino->hpa = d->hpa;
> > + dino->find_irq = dino_find_irq;
>
> I don't think this in an ugly hack.
> Overall, this is how I expected it to work.
> Might not even need to fill in the rest of the functions
> in the bus_device jump table.
>

As I wrote before, it looks ugly to me because I think the driver would look
much better if dino.c was rewritten. But again, if you don't feel like it
is, I won't complain !

> > +
> > +
> >  /*
> >  ** Note: SMP systems can make use of IRR1/IAR1 registers
> >  **   But it won't buy much performance except in very
>
> offhand, the rest looks ok.
>

ok

> grant
>

So, are you happy with the actual look of the driver or do you think it is
worth rewriting it ?

Clement MOYROUD
Puffin ESIEE Team





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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] .9 install problems on a 735
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On Sat, Jun 02, 2001 at 07:16:35PM +0100, Richard Hirst wrote:
> I had it hang on my 715/old, because of problems with the alignment
> of locks in glibc 2.2.1.  The installer is based on glibc 2.2.1 at
> the moment, although you would typically upgrade to glibc 2.2.3
> (which is also on the CD), after install.  That problem is processor
> specific, and I wouldn't have expected it to affect the 735.

715/scorpio is PCXT and so are the 735 and 755 workstations.  I'd expect
them to have similar problems.

-- 
Revolutions do not require corporate support.




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On Sun, Jun 03, 2001 at 08:20:40PM +0100, Matthew Wilcox wrote:
> On Sat, Jun 02, 2001 at 07:16:35PM +0100, Richard Hirst wrote:
> > I had it hang on my 715/old, because of problems with the alignment
> > of locks in glibc 2.2.1.  The installer is based on glibc 2.2.1 at
> > the moment, although you would typically upgrade to glibc 2.2.3
> > (which is also on the CD), after install.  That problem is processor
> > specific, and I wouldn't have expected it to affect the 735.
> 
> 715/scorpio is PCXT and so are the 735 and 755 workstations.  I'd expect
> them to have similar problems.

You're right, I should have checked the hw database.  Maybe those 3 should be
in the same section on http://parisc-linux.org/release-0.9/systems.html

Richard





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> > When are you going to update the kernel? Or is pa-risc stuff merged to the
> > 2.4.5 for example?
> 
> We're merging from 2.4.0 to 2.4.5 soon :-)

Should be fun. Im just trying to get 0.9 onto my box ready for merging with
the mainstream




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Clement MOYROUD wrote:
...
> I think (as well as the other members of the ESIEE team) that the dino
> driver has not been written in order to "comply" with some sort of a GSC
> driver standard - i.e. it could make use of the register_busdevice instead
> of requiring it's own irq region (e.g. lasi).

You are right. IIRC, bus_devices didn't exist when I wrote the *second*
version of dino support. Technically, Alan Cox wrote the first one.

> I have started to do this, but
> it would require some modifications of the busdevice structure to add some
> support for the pci-specific part of dino. With this modification of the
> busdevice struct (and some other functions), I would be much more clean.....

hmmm...ok.

> But if you think it's clear enough, I've got other things to do :)

*I* think it's ok. more on this below.


...
> As I wrote, it's something that works on a b132/180, and I didn't check in
> the hardware database to see if it is in use in other workstations. But I
> know I'll have to make some tests to find which irq return....

No you won't. THe IRQ is hardwired in dino. It's in the ERS someplace.
You just need to verify the address for that device really
belongs to the RS232 port and isn't the PS/2 port.

...
> I agree it might not be that clear. In fact, my future plans are to use only
> one struct (bye-bye  struct dino_device !), and I didn't take care of the
> clarity of this....

ah ok. If dino_device is that similar to bus_device then the direction you
are taking makes sense.

...
> As I wrote before, it looks ugly to me because I think the driver would look
> much better if dino.c was rewritten. But again, if you don't feel like it
> is, I won't complain !

If you (or the team) feel strongly about rewriting dino, then I'd like
to encourage you to do it.  Just don't break what currently works.

...
> So, are you happy with the actual look of the driver or do you think it is
> worth rewriting it ?

PCI suport mostly works. That's what mattered to me before.
Rewriting dino.c to use bus_device instead of dino_device is probably
the "right thing" (tm) since some people will want PS/2 and RS232 to work.
I don't care to test/debug problems with dino code anymore though. I don't
mind helping someone do it.  In other words, whoever wants to rewrite dino.c
welcome to and I'll help some when needed.

> Clement MOYROUD
> Puffin ESIEE Team

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: Re: [parisc-linux] Failed boot on D310
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On Sun, 3 Jun 2001, Richard Hirst wrote:
> On Sun, Jun 03, 2001 at 12:41:46PM -0500, djweis@sjdjweis.com wrote:
> > On Sun, 3 Jun 2001, Richard Hirst wrote:
> > > On Sun, Jun 03, 2001 at 08:33:23AM -0500, djweis@sjdjweis.com wrote:
> > > > I've got a D310 with a 100mhz processor and 128 megs of RAM. I tried to
> > > > boot the ISO version 0.9 last night, but it crashed on boot. I can get the
> > > > exact error messages, it looked like a register dump. 
> > > > 
> > > > Is there any reason to assume that this will or won't boot?
> > > Listed as untested on http://parisc-linux.org/release-0.9/systems.html
> > > Are you trying the serial or sti image?  If you can use serial, and
> > > get you terminal emulator to capture the boot messages and crash for us,
> > > that would help.
> > 
> > It's headless, I was using the serial image. Below is my terminal output
> > 
> Ah, I'd assumed it got as far as starting the kernel and then the
> kernel crashed.  In this case I think it has failed reading the
> CD.  Can you read the CD on some other system to check it burned
> ok?  Are you confident that the CD drive is P5 and is working?

I'll give that a try. It's definitely P5, I tried P0 a few times and
noticed that hpux kept booting. According to the legend inside the drive
cover, P5 is correct. 

The cd did mount and read fine on another machine.

> An alternative is to boot the relevant lifimage over the network,
> and then either install from the network or from the CD (if the
> net booted kernel sees the CD).  See the REAME on the CD for details.

I'll give that a try.

dave

-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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Subject: Re: [parisc-linux] Failed boot on D310
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On Sun, 3 Jun 2001, Richard Hirst wrote:
> On Sun, Jun 03, 2001 at 12:41:46PM -0500, djweis@sjdjweis.com wrote:
> > On Sun, 3 Jun 2001, Richard Hirst wrote:
> > > On Sun, Jun 03, 2001 at 08:33:23AM -0500, djweis@sjdjweis.com wrote:
> > > > I've got a D310 with a 100mhz processor and 128 megs of RAM. I trie=
d to
> > > > boot the ISO version 0.9 last night, but it crashed on boot. I can =
get the
> > > > exact error messages, it looked like a register dump.=20
> > > >=20

> Ah, I'd assumed it got as far as starting the kernel and then the
> kernel crashed.  In this case I think it has failed reading the
> CD.  Can you read the CD on some other system to check it burned
> ok?  Are you confident that the CD drive is P5 and is working?

Okay, I managed to get bootp and tftp set up enough to get an image over
the wire. It did get into the kernel after a while and here are the boot
messages:


Main Menu: Enter command > boot lan                                        =
     Interact with IPL (Y or N)?> n                                        =
                                                                           =
               Booting...                                                  =
                    Network Station Address 080009-ae8800                  =
                                                                           =
                              Boot IO Dependent Code (IODC) revision 2     =
                                                                           =
                                                                           =
                                             HARD Booted.                  =
                                                  palo ipl bame@palinux Fri=
 May 11 16:10:29 MDT 2001                              0/vmlinux 2622963 by=
tes @ 0x6800                                                0/palo-cmdline =
'0/vmlinux HOME=3D/ TERM=3Dlinux root=3D/dev/ram initrd=3D0/ramdisk cons'0/=
ramdisk 1678201 bytes @ 0x286df3                                           =
   Kernel: partition 0 file /vmlinux                                       =
        Ramdisk: partition 0 file /ramdisk                                 =
             ELF32 executable                                              =
                  Entry 00100000 first 00100000 n 4                        =
                       Segment 0 load 00100000 size 1469948 mediaptr 0x1000=
                            Segment 1 load 00268000 size 192312 mediaptr 0x=
168000                           Segment 2 load 00298000 size 221184 mediap=
tr 0x197000                           Segment 3 load 002fa7c8 size 73264 me=
diaptr 0x1cd7c8                            Loading ramdisk 1678201 bytes @ =
07e55000...                                     branching to kernel entry p=
oint 0x00100000                                      Set default PSW W bit =
to 0                                                      PDC Console Initi=
alized                                                         Linux versio=
n 2.4.0-pa10 (root@slab) (gcc version 3.0 20010315 (prerelease)) #11FP[0] e=
nabled: Rev 1 Model 13                                                   Th=
e 32-bit Kernel has started...                                             =
  =20
Determining PDC firmware type: Newer Box                                   =
     setup_cmdline(0x64cc4,0x64cc4,0x7e55000,0x7feeb79)                    =
          PALO command line: 'HOME=3D/ TERM=3Dlinux root=3D/dev/ram console=
=3DttyS0'              PALO initrd 7e55000-7feeb79                         =
                            model   00004840 00000481 00000000 00000000 773=
61cea 100000f0 00000004 000000722vers    0000000c                          =
                                      CPUID   vers 0 rev 0                 =
                                           model   9000/811/D310           =
                                                Total Memory: 128 Mb       =
                                                     initrd: 17e55000-17fee=
b79                                                       pagetable_init   =
                                                               On node 0 to=
talpages: 32768                                                     zone(0)=
: 32768 pages.                                                           zo=
ne(1): 0 pages.                                                            =
   zone(2): 0 pages.                                                       =
        Searching for devices...                                           =
             Found devices:                                                =
                  1. UL 550 Lasi Core BA (11) at 0xf0100000, versions 0x2f,=
 0x0, 0x81, 0x0, 0x0,  2. UL 550 Core SCSI (10) at 0xf0106000, versions 0x2=
f, 0x0, 0x82, 0x0, 0x0      3. UL 350 Core LAN (802.3) (10) at 0xf0107000, =
versions 0x2f, 0x0, 0x8a, 0x0, 004. UL 550 Core Centronics (10) at 0xf01020=
00, versions 0x2f, 0x0, 0x74, 0x0, 0x 5. UL 550 Core PC Keyboard (10) at 0x=
f0108000, versions 0x2f, 0x0, 0x84, 0x0, 006. UL 550 Core PC Keyboard (10) =
at 0xf0108100, versions 0x2f, 0x0, 0x84, 0x0, 007. UL 550 Core Wax BA (11) =
at 0xffe00000, versions 0x31, 0x0, 0x8e, 0x0, 0x0    8. UL 550 Wax Core RS-=
232 (10) at 0xffe02000, versions 0x31, 0x0, 0x8c, 0x0, 0x09. UL 550 Wax EIS=
A BA (11) at 0xfc000000, versions 0x31, 0x0, 0x90, 0x0, 0x0,   10. Gecko BO=
A BC GSC+ Port (7) at 0xfff80000, versions 0x500, 0x0, 0xc, 0x0, 0x011. Blu=
efish Add-on FW-SCSI (4) at 0xfff84000, versions 0x13, 0x1, 0x89, 0x0, 0012=
=2E Unknown device (0) at 0xfffbe000, versions 0x484, 0x0, 0x4, 0x0, 0x81  =
     13. UL Proc L 100 (1) at 0xfffbf000, versions 0x57, 0x0, 0x9, 0x0, 0x0=
          That's a total of 13 devices.                                    =
               CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz              =
                    Kernel command line: HOME=3D/ TERM=3Dlinux root=3D/dev/=
ram console=3DttyS0              Calibrating delay loop... 99.73 BogoMIPS  =
                                      Memory: 125076k available            =
                                           Dentry-cache hash table entries:=
 16384 (order: 5, 131072 bytes)                 Buffer-cache hash table ent=
ries: 4096 (order: 2, 16384 bytes)                   Page-cache hash table =
entries: 32768 (order: 5, 131072 bytes)                   Inode-cache hash =
table entries: 8192 (order: 4, 65536 bytes)                    POSIX confor=
mance testing by UNIFIX                                             Lasi ve=
rsion 0 at 0xf0100000 found.                                             Wa=
x at 0xffe00000 found.                                                     =
   Wax: HIL Keyboard-NMI registered.                                       =
        Wax EISA bus adapter version 0x5761 at 0xffe00000                  =
             Initializing Lasi PS/2-keyboard port at 0xf0108000...         =
                  Support for Lasi PS/2-psaux not yet available !          =
                       Found i82596 at 0xf0107000, IRQ 87                  =
                            early initialization of device eth0 is deferred=
                                 Linux NET4.0 for Linux 2.4                =
                                      Based upon Swansea University Compute=
r Society NET3.039                         Starting kswapd v1.8            =
                                                pty: 25<4>Lasi PS/2 transmi=
t buffer timeout                                     Lasi PS/2 transmit buf=
fer timeout                                                PS/2 transmit bu=
ffer timrequest_module[parport_lowlevel]: Root fs not mounted  lp: driver l=
oaded but no devices found                                          RAMDISK=
 driver initialized: 16 RAM disks of 4096K size 1024 blocksize           et=
h0: 82596 at 0xf0107000, 08 00 09 AE 88 00 IRQ 87.                         =
   82596.c $Revision: 1.18 $                                               =
        RAMDISK: Compressed image found at block 0                         =
             Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_=
IRQ SERIAL_PCI endttyS00 at iomem 0xffe02800 (irq =3D 121) is a 16550A     =
                                                                           =
                             =20


There doesn't seem to be linefeeds at the end of the line, I hope it
wraps correctly.

The mac address was read correctly. The ttyS00 line is the last thing to
be printed.

dave


--=20
Dave Weis             "I believe there are more instances of the abridgemen=
t
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent=20
                      and sudden usurpations."- James Madison





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From: "Jim Buttafuoco" <jim@buttafuoco.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] .9 install problems on a 735
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To: Richard Hirst <rhirst@linuxcare.com>,
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	PARISC-LINUX Mailing List <parisc-linux@thepuffingroup.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11220

Just to let you know,  I attached a CDROM drive to my 735,  and went
through the install again.  This time I let it sit for about 5 hours. 
It seems to have finished.  I am currently working on the second part of
the install

I will keep you posted
Jim

> On Sun, Jun 03, 2001 at 08:20:40PM +0100, Matthew Wilcox wrote:
> > On Sat, Jun 02, 2001 at 07:16:35PM +0100, Richard Hirst wrote:
> > > I had it hang on my 715/old, because of problems with the
alignment
> > > of locks in glibc 2.2.1.  The installer is based on glibc 2.2.1 at
> > > the moment, although you would typically upgrade to glibc 2.2.3
> > > (which is also on the CD), after install.  That problem is
processor
> > > specific, and I wouldn't have expected it to affect the 735.
> > 
> > 715/scorpio is PCXT and so are the 735 and 755 workstations.  I'd
expect
> > them to have similar problems.
> 
> You're right, I should have checked the hw database.  Maybe those 3
should be
> in the same section on
http://parisc-linux.org/release-0.9/systems.html
> 
> Richard
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 
> 






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From: Michael S.Zick <mszick@pflash.com>
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Subject: [parisc-linux] Re: Version 0.9 of PA-RISC Linux Released
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Xref: news.gmane.org gmane.linux.ports.parisc:11221

Hi Folks -
Sub-Title this one: Adventures in running V0.9 on a HP9000/720 box:

1) I had been working with V0.6 and CVS snapshot of 05/25/2001 when this =
notice arrived.
Great - Gotta get that! -- 18 hours later, got it.  (very slow modem conn=
ection to a backwoods ISP).
2) Now make some working room - throw out (almost) all of that old stuff.
3) Mount new ISO image - What, no new ISO image! *&^%$#$%=20

V0.9 ISO - Test one: it deletes just fine.
Now repeat step 1).

xx hours later - it's here (I will not delete this copy, I know that work=
s).

Now, will it run "out of the box" - well, out of the things in the ISO an=
yway?

V0.9 ISO - Test two: Nope, not on a Model 720

Ok, so will it build "out of the box" and then run?

V0.9 ISO - Test three: Nope - the /devel directory is gone.

4) Turn loose ncFTP daemon clinet loose on cvs - get current snapshots,=20
being optimistic - get the new (hppa) native stuff also.

5) Meanwhile - what things of possible use can I say, well there are some=
 similarities
between the "boxed" 32STI vmlinux and what I have found to date:

File: linux/arch/parisc/kernel/setup.c
Function: void __init setup_console....
Approx. lines 332-335
=09printk ->
=09arg[0] -> free_memory start
=09arg[1] -> passed command line (from palo/ipl/ipl.c - Funciton: static =
void join
=09arg[2] -> initrd start
=09arg[3] -> initrd end
The values shown for arg[0] and arg[1] are the same - does this indicate =
a problem?
The passed command line (after copy from arg[1]) prints correctly.

File: linux/drivers/char/console.c
Function: void __init con_init
Approx. lines 2455-2457
=09call to register_console appears to never return -=20
The 9000/720 (at least mine) has a SGC display reported by the inventory =
list.
Changing the passed command line (with IPL editor) to: console=3DttyB
(which specifies the PDC console functions) seems to by-pass the above co=
de
and things proceed until this kernel gets into the same troubles that I w=
as working on:

I had been trouble shooting a number of different things in the LASI-SEM7=
00 scsi
driver for the 53c7xx (yes, the 9000/720 has the oldest controller availa=
ble).

The driver was reporting "unable to obtain consistant DMA memory" - among=
 other
strange and mysterious things.
Only recently did I notice that the ethernet driver is reporting the same=
 thing -

The printer port driver is reporting (interrupt driven mode) - is the pri=
nter port on
the 720 DMA capable?

So my next step will be to quit looking only at the SCSI driver and start=
 looking=20
for something common to the same problem reports from two different drive=
rs.

Note: All work is being done XC(x86) - the 720 disk was wiped clean befor=
e I got the
machine.  So I have to get it running before I can trouble shoot why it i=
sn't running=20
with the native mode toolset.

Yes - I am using the most recent XC-... things available from your site.

Any suggestions?
HELP !?!

PS: Is any work being done at the work station end?  Such as an 80960 X-c=
lient?  This
system came with two workstations - a HP 700/RX (model C2708A) and a HP
Envizex, aSeries (model C2731A).

PPS: A note on used equipment - I know this system was working (under HP-=
UX)
until it was shut down, the day before I bought it from a second-hand sto=
re.

Mike


On Thu, 31 May 2001, Matt Taggart wrote:
> Version 0.9 of PA-RISC Linux Released
>=20
> On May 31, 2001 the PA-RISC Linux development community released versio=
n
> 0.9, the latest version of Linux for computers using Hewlett Packard's
> PA-RISC processor. This release is the result of several years of work =
by
> developers in the Free Software community including developers from The
> Debian Project, Hewlett Packard, and Linuxcare.
>=20
> - Latest Debian Installer=20
> - Support for 32 and 64 bit systems=20
> - Over 4000 Debian packages=20
> - Full development environment=20
> - Support for large memory (up to 16GB)
> - Ability to use Debian's apt tool to update to the latest
>     package versions
>=20
> The 0.9 release install CDROM images and related documentation can be f=
ound at
>=20
> http://parisc-linux.org/release-0.9/
>=20
> Information about PA-RISC Linux is available at
>=20
> http://parisc-linux.org/
>=20
> Any questions or comments about the release should be directed to the
> mailing list at
>=20
> parisc-linux@parisc-linux.org
>=20
> --=20
> Matt Taggart        Linux Development Lab
> taggart@fc.hp.com   HP Linux Systems Operation
>=20
>=20
>=20
>=20
>=20
> -- =20
> To UNSUBSCRIBE, email to debian-hppa-request@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debi=
an.org




From - Thu Nov 08 21:17:55 2018
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: [parisc-linux] PA-RISC 0.9 release problem
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To: mszick@pflash.com (Michael S.Zick)
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Xref: news.gmane.org gmane.linux.ports.parisc:11222

I hit one fundamental problem...

The CD dumps you into a pseudo gui interface which is not compatible with
the web console HP29xx emulation...

Alan





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Subject: [parisc-linux] Your 20-May-2001: Problems booting...
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HI -
I am new to this list, so am only now seeing your message.
Try this:
Manually boot - choosing the "boot xxxxx IPL" option.
Use the editor on the command line to make the following change:
console=3Dtty
to
console=3DttyB

That will by-pass the problem code (at least it does on my 9000/720) -
=3DttyB is 'magic' meaning to use the PDC console code.

The above change gets through the entire boot process - then locks
with "unable to open console device" message.  Which I believe just
means that /dev needs an entry for the ttyB device.  Perhaps, also a
new entry in /etc/inittab for the ttyB device.

If anyone knows what entry(s) is required to allow the ttyB console to be
used - please advise.

PS: I know how to edit the ramdisk image - just don't know what=20
entries to make.

In addition, a suggestion to the planners:
How about leaving all the access to the old PDC drivers in the code
and ramdisk images until V12.0 of pa-risc/linux so that people can
get past broken, new, code?

Mike




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From: diab <diab@diab.rulez.org>
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Subject: [parisc-linux] dpkg-utils, ./configure --host, mysql3.23
Date: Mon, 4 Jun 2001 12:19:02 +0200 (CEST)
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Xref: news.gmane.org gmane.linux.ports.parisc:11224

just tried to apt-get source wget to make a debianized version of it, but
dpkg-utils (which contains dpkg-source) depends on perl5 which is not
installed. this way it is kind of hard to simply make debs using the
usual apt-get source approach.

anyways i found the older ./configure -s (which displays unknown host
type) will just run fine using --host=hppa-pc-linux-gnu or
hppa-hp-linux-gnu.

still no luck compiling mysql 3.23.38 so far :( i tried with different
options, but in /client (which is quite "far" from the beginning, i mean
lotsa compiling succeeds) i just keep getting:

snowball:/usr/local/src/mysql-3.23.38/client# make
/bin/sh ../libtool --mode=link gcc  -O3 -DDBUG_OFF
-fno-implicit-templates -rdynamic -o mysql  mysql.o readline.o
sql_string.o completion_hash.o -lreadline -lncurses
../libmysql/libmysqlclient.la  -lcrypt -lnsl -lm 
gcc -O3 -DDBUG_OFF -fno-implicit-templates -rdynamic -o .libs/mysql
mysql.o readline.o sql_string.o completion_hash.o -lreadline -lncurses
../libmysql/.libs/libmysqlclient.so -lcrypt -lnsl -lm -lcrypt -lnsl -lm
-Wl,--rpath -Wl,/usr/local/lib/mysql
mysql.o: In function `add_line(String&, char*, char*)':
mysql.o(.text+0x1d50): undefined reference to `std::terminate()'
/usr/bin/ld: mysql.o(.text+0x1d50): cannot find stub entry
00000014__ZSt9terminatev+0
/usr/bin/ld: mysql.o(.text+0x1d50): cannot handle R_PARISC_PCREL17F for
std::terminate()
mysql.o: In function `L948':
mysql.o(.text+0x31e8): undefined reference to `std::terminate()'
/usr/bin/ld: mysql.o(.text+0x31e8): cannot find stub entry
00000014__ZSt9terminatev+0
/usr/bin/ld: mysql.o(.text+0x31e8): cannot handle R_PARISC_PCREL17F for
std::terminate()
collect2: ld returned 1 exit status
make: *** [mysql] Error 1

any1 has an idea what can i do to make it work? i tried --without-readline
(as it seems this error might be around readline) but no luck with the
built in libreadline*so so far.

the other thing is: it seems that this list is rather
hardware/kernel/low level programming oriented, not dealing w/ 
software issues that much.
if this is the case, which is the best list to discuss sw issues?

regards,

--
diab 
		





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Failed boot on D310
Date: Mon, 4 Jun 2001 11:39:48 +0100
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In-Reply-To: <Pine.LNX.4.21.0106031741030.18856-100000@oliver.internal.sjdjweis.com>; from djweis@sjdjweis.com on Sun, Jun 03, 2001 at 05:44:33PM -0500
Xref: news.gmane.org gmane.linux.ports.parisc:11225

On Sun, Jun 03, 2001 at 05:44:33PM -0500, djweis@sjdjweis.com wrote:
> 
> On Sun, 3 Jun 2001, Richard Hirst wrote:
> > On Sun, Jun 03, 2001 at 12:41:46PM -0500, djweis@sjdjweis.com wrote:
> > > On Sun, 3 Jun 2001, Richard Hirst wrote:
> > > > On Sun, Jun 03, 2001 at 08:33:23AM -0500, djweis@sjdjweis.com wrote:
> > > > > I've got a D310 with a 100mhz processor and 128 megs of RAM. I tried to
> > > > > boot the ISO version 0.9 last night, but it crashed on boot. I can get the
> > > > > exact error messages, it looked like a register dump. 
> > > > > 
> 
> > Ah, I'd assumed it got as far as starting the kernel and then the
> > kernel crashed.  In this case I think it has failed reading the
> > CD.  Can you read the CD on some other system to check it burned
> > ok?  Are you confident that the CD drive is P5 and is working?
> 
> Okay, I managed to get bootp and tftp set up enough to get an image over
> the wire. It did get into the kernel after a while and here are the boot
> messages:

I've untangled the formatting to make them more readable:

Main Menu: Enter command > boot lan
Interact with IPL (Y or N)?> n                                                 
Booting...
Network Station Address 080009-ae8800                                          
Boot IO Dependent Code (IODC) revision 2                                       

HARD Booted.
palo ipl bame@palinux Fri May 11 16:10:29 MDT 2001
/vmlinux 2622963 bytes @ 0x6800
/palo-cmdline '0/vmlinux HOME=/ TERM=linux root=/dev/ram initrd=0/ramdisk cons'0/ramdisk 1678201 bytes @ 0x286df3
Kernel: partition 0 file /vmlinux
Ramdisk: partition 0 file /ramdisk
ELF32 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1469948 mediaptr 0x1000
Segment 1 load 00268000 size 192312 mediaptr 0x168000
Segment 2 load 00298000 size 221184 mediaptr 0x197000
Segment 3 load 002fa7c8 size 73264 mediaptr 0x1cd7c8
Loading ramdisk 1678201 bytes @ 07e55000...
branching to kernel entry point 0x00100000
Set default PSW W bit to 0
PDC Console Initialized
Linux version 2.4.0-pa10 (root@slab) (gcc version 3.0 20010315 (prerelease)) #11
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...                                              
Determining PDC firmware type: Newer Box
setup_cmdline(0x64cc4,0x64cc4,0x7e55000,0x7feeb79)
PALO command line: 'HOME=/ TERM=linux root=/dev/ram console=ttyS0'
PALO initrd 7e55000-7feeb79
model   00004840 00000481 00000000 00000000 77361cea 100000f0 00000004 000000722
vers    0000000c
CPUID   vers 0 rev 0
model   9000/811/D310
Total Memory: 128 Mb
initrd: 17e55000-17feeb79
pagetable_init
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Searching for devices...
Found devices:
1. UL 550 Lasi Core BA (11) at 0xf0100000, versions 0x2f, 0x0, 0x81, 0x0, 0x0,
2. UL 550 Core SCSI (10) at 0xf0106000, versions 0x2f, 0x0, 0x82, 0x0, 0x0
3. UL 350 Core LAN (802.3) (10) at 0xf0107000, versions 0x2f, 0x0, 0x8a, 0x0, 00
4. UL 550 Core Centronics (10) at 0xf0102000, versions 0x2f, 0x0, 0x74, 0x0, 0x
5. UL 550 Core PC Keyboard (10) at 0xf0108000, versions 0x2f, 0x0, 0x84, 0x0, 00
6. UL 550 Core PC Keyboard (10) at 0xf0108100, versions 0x2f, 0x0, 0x84, 0x0, 00
7. UL 550 Core Wax BA (11) at 0xffe00000, versions 0x31, 0x0, 0x8e, 0x0, 0x0
8. UL 550 Wax Core RS-232 (10) at 0xffe02000, versions 0x31, 0x0, 0x8c, 0x0, 0x0
9. UL 550 Wax EISA BA (11) at 0xfc000000, versions 0x31, 0x0, 0x90, 0x0, 0x0,
10. Gecko BOA BC GSC+ Port (7) at 0xfff80000, versions 0x500, 0x0, 0xc, 0x0, 0x0
11. Bluefish Add-on FW-SCSI (4) at 0xfff84000, versions 0x13, 0x1, 0x89, 0x0, 00
12. Unknown device (0) at 0xfffbe000, versions 0x484, 0x0, 0x4, 0x0, 0x81
13. UL Proc L 100 (1) at 0xfffbf000, versions 0x57, 0x0, 0x9, 0x0, 0x0
That's a total of 13 devices.
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
Kernel command line: HOME=/ TERM=linux root=/dev/ram console=ttyS0
Calibrating delay loop... 99.73 BogoMIPS
Memory: 125076k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xf0100000 found.
Wax at 0xffe00000 found.
Wax: HIL Keyboard-NMI registered.
Wax EISA bus adapter version 0x5761 at 0xffe00000
Initializing Lasi PS/2-keyboard port at 0xf0108000...
Support for Lasi PS/2-psaux not yet available !
Found i82596 at 0xf0107000, IRQ 87
early initialization of device eth0 is deferred
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 25<4>Lasi PS/2 transmit buffer timeout
Lasi PS/2 transmit buffer timeout
PS/2 transmit buffer timrequest_module[parport_lowlevel]: Root fs not mounted
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
eth0: 82596 at 0xf0107000, 08 00 09 AE 88 00 IRQ 87.
82596.c $Revision: 1.18 $
RAMDISK: Compressed image found at block 0
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI end
ttyS00 at iomem 0xffe02800 (irq = 121) is a 16550A

> There doesn't seem to be linefeeds at the end of the line, I hope it
> wraps correctly.

If you are using minicom, do 'ctrl-Z w' (assuming ctrl-z is the attention
char).  That turns on line wrap, so the output isn't truncated at 80 chars.
Also, 'ctrl-Z l' will let you turn on logging to a file.

> The mac address was read correctly. The ttyS00 line is the last thing to
> be printed.

For reference, my 715/old, which seems to have a similar initialisation
order to your system, continues something like this:

Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI ena bled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
lp0: using parport0 (interrupt-driven).
SCSI subsystem driver Revision: 1.00


I wonder whether the serial driver has done something which killed
the serial port.  My approach would be to set up a cross-compile
environment to build kernels with printk debugging to see where
it actually stops.  Don't know if you fancy doing that though...

Richard





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Subject: Re: [parisc-linux] Failed boot on D310
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To: Richard Hirst <rhirst@linuxcare.com>
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On Mon, 4 Jun 2001, Richard Hirst wrote:
> On Sun, Jun 03, 2001 at 05:44:33PM -0500, djweis@sjdjweis.com wrote:
> > On Sun, 3 Jun 2001, Richard Hirst wrote:
> > > On Sun, Jun 03, 2001 at 12:41:46PM -0500, djweis@sjdjweis.com wrote:
> > > > On Sun, 3 Jun 2001, Richard Hirst wrote:
> > > > > On Sun, Jun 03, 2001 at 08:33:23AM -0500, djweis@sjdjweis.com wrote:
> > > > > > I've got a D310 with a 100mhz processor and 128 megs of RAM. I tried to
> > > > > > boot the ISO version 0.9 last night, but it crashed on boot. I can get the
> > > > > > exact error messages, it looked like a register dump. 
> > > Ah, I'd assumed it got as far as starting the kernel and then the
> > > kernel crashed.  In this case I think it has failed reading the
> > > CD.  Can you read the CD on some other system to check it burned
> > > ok?  Are you confident that the CD drive is P5 and is working?
> > 
> > Okay, I managed to get bootp and tftp set up enough to get an image over
> > the wire. It did get into the kernel after a while and here are the boot
> > messages:
> 
> I've untangled the formatting to make them more readable:
> 
> RAMDISK: Compressed image found at block 0
> Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI end
> ttyS00 at iomem 0xffe02800 (irq = 121) is a 16550A

Good news, I noticed after a few boots that the hd access lights were
sequentially lighting up. It does make it into userspace because...

> I wonder whether the serial driver has done something which killed
> the serial port.  My approach would be to set up a cross-compile
> environment to build kernels with printk debugging to see where
> it actually stops.  Don't know if you fancy doing that though...

Already have it going. I grabbed nfsroot-small from the ftp server and it
does mount successfully. It kind of looks like it may be a mismatch
between my console= line for palo and the actual /dev tree. There was
another message to the list on the same thing earlier this AM. I'll try to
play with it tonite again.

Thanks for the help

dave


-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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Subject: [parisc-linux] Problems with 0.9 ISO Images from mkhppa1.esiee.fr
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Hi,

maybe it just me, but I burned all three iso images from the France mirror
and none of it is bootable (tried on 712, C200 and J282). I get IPL checksum
error (C200/J282) or just dropping back to the bootprom (712). I could
mount them on my PC. The 0.5 ISO CD I've burned sometime ago works. So 
before more people burn coasters, could someone check, whether the images
are broken or I made an error buring the CDs.

Another question: I've tried the 64bit kernel on the C200 and got a
system not supported error. Is this a known problem or is the C200
really too old ? J282 (which AFAIK is older) booted the 64bit kernel 
just fine, but had some problems with the interrupt of the serial console
during install.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems with 0.9 ISO Images from mkhppa1.esiee.fr
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In-Reply-To: <20010604173924.A1043@excalibur.cologne.de>; from parisc-linux@excalibur.cologne.de on Mon, Jun 04, 2001 at 05:39:24PM +0200
Xref: news.gmane.org gmane.linux.ports.parisc:11229

On Mon, Jun 04, 2001 at 05:39:24PM +0200, Karsten Merker wrote:
> bash> md5sum palinux-0.9-32sti.iso.gz
> 8ec6565d49172302a39e844cea64c47b  palinux-0.9-32sti.iso.gz

ok, that's the same I have here. Looks like cdrecord messed up something:-(
Anyway thanks for the report.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems with 0.9 ISO Images from mkhppa1.esiee.fr
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Xref: news.gmane.org gmane.linux.ports.parisc:11230

On Mon, Jun 04, 2001 at 05:39:24PM +0200, Karsten Merker wrote:
> I had some difficulties after the installation (with certain operations in
> vi I could repeatably crash the kernel and I got kernel panics on bootup
> when booting from harddisk), but both problems could be solved by using a
> current cvs kernel instead.

I think the vi problem can be avoided by changing the termtype.
See <http://bugs.parisc-linux.org/db/12/122.html>.

The kernel panics on boot are a known proboem with the sti
console.

> The only problem I had with the installation itself was that the dialog
> boxes looked a bit weird when using sticon.

Excellent, thanks very much for the report.

Richard





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Subject: Re: [parisc-linux] dpkg-utils, ./configure --host, mysql3.23
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Cc: parisc-linux@parisc-linux.org
To: diab <diab@diab.rulez.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:11231

On Mon, Jun 04, 2001 at 12:19:02PM +0200, diab wrote:
> 
> just tried to apt-get source wget to make a debianized version of it, but
> dpkg-utils (which contains dpkg-source) depends on perl5 which is not
> installed. this way it is kind of hard to simply make debs using the
> usual apt-get source approach.

I have a machine on which I just did a clean install from the 0.9 release
CD, and then upgraded all installed packages from the more-packages dir.
Installed various other debs from the CD and web also.

slab:/usr/src/wget# apt-get -b source wget
Reading Package Lists... Done
Building Dependency Tree... Done
Need to get 722kB of source archives.
Get:1 http://http.us.debian.org unstable/main wget 1.6-2 (dsc) [713B]
Get:2 http://http.us.debian.org unstable/main wget 1.6-2 (tar) [671kB]
Get:3 http://http.us.debian.org unstable/main wget 1.6-2 (diff) [50.4kB]                                                                   
dpkg-source: extracting wget in wget-1.6                                                                                                   
dpkg-buildpackage: source package is wget
dpkg-buildpackage: source version is 1.6-2
dpkg-buildpackage: source maintainer is Nicols Lichtmaier <nick@debian.org>
dpkg-buildpackage: build architecture is hppa

etc.  had to edit debian/rules to add --host=hppa-linux
to the configure line, but after that it builds ok.

The perl5 problem should be solved by the new version of apt
that is on the CD.  perl provides perl5, but the old apt you
(probably) have doesn't understand that.

Richard





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Subject: [parisc-linux] D310 boot messages
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I looked through the kernel source for a while and found the pdc/iodc
console driver and changed my palo config to use ttyB and got a mostly
complete boot! Here are the boot messages:

Firmware Version  36.34

Duplex Console IO Dependent Code (IODC) revision 4

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

    Speed    Coprocessor State  Cache Size
  ---------  -----------------  ----------
   100 MHz   Functional          256 KB

  128 MB of memory configured and tested.

  Primary boot path:    4.5   (dec)   
  Alternate boot path:  16/5.2   (dec)   
  Console path:         0/0.0   (dec)   
  Keyboard path:        16/7.0   (dec)   

Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


------- Main Menu -------------------------------------------------------------

        Command                         Description
        -------                         -----------
        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration [<command>]       Access Configuration menu/commands
        INformation [<command>]         Access Information menu/commands
        SERvice [<command>]             Access Service menu/commands

        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command > boot lan
Interact with IPL (Y or N)?> n

Booting... 
Network Station Address 080009-ae8800

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl 0.91 djweis@djweis.internal.sjdjweis.com Sun Jun  3 21:02:48 CDT 2001
0/vmlinux 2602334 bytes @ 0x7000
Kernel: partition 0 file /vmlinux
ELF32 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 1507276 mediaptr 0x1000
Segment 1 load 00270000 size 181552 mediaptr 0x171000
Segment 2 load 002a0000 size 221560 mediaptr 0x19e000
Segment 3 load 002d8000 size 8192 mediaptr 0x1d5000
Segment 4 load 00305e88 size 75552 mediaptr 0x1d7e88
branching to kernel entry point 0x00100000
Set default PSW W bit to 0
PDC Console Initialized
Linux version 2.4.0-pa10 (djweis@djweis.internal.sjdjweis.com) (gcc version 3.0 20010315 (prerelease)) #9 Mon Jun 4 12:50:30 CDT 2001
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Newer Box
setup_cmdline(0x65328,0x65328,0x0,0x0)
PALO command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=192.168.1.10 console=ttyB'
PALO initrd 0-0
model   00004840 00000481 00000000 00000000 77361cea 100000f0 00000004 00000072 00000072
vers    0000000c
CPUID   vers 0 rev 0
model   9000/811/D310
Total Memory: 128 Mb
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Searching for devices...
Found devices:
1. UL 550 Lasi Core BA (11) at 0xf0100000, versions 0x2f, 0x0, 0x81, 0x0, 0x0,  additional addresses: 0xf010c000 0xf0100000 
2. UL 550 Core SCSI (10) at 0xf0106000, versions 0x2f, 0x0, 0x82, 0x0, 0x0
3. UL 350 Core LAN (802.3) (10) at 0xf0107000, versions 0x2f, 0x0, 0x8a, 0x0, 0x0
4. UL 550 Core Centronics (10) at 0xf0102000, versions 0x2f, 0x0, 0x74, 0x0, 0x0,  additional addresses: 0xf0101000 0xf0103000 
5. UL 550 Core PC Keyboard (10) at 0xf0108000, versions 0x2f, 0x0, 0x84, 0x0, 0x0
6. UL 550 Core PC Keyboard (10) at 0xf0108100, versions 0x2f, 0x0, 0x84, 0x0, 0x0
7. UL 550 Core Wax BA (11) at 0xffe00000, versions 0x31, 0x0, 0x8e, 0x0, 0x0
8. UL 550 Wax Core RS-232 (10) at 0xffe02000, versions 0x31, 0x0, 0x8c, 0x0, 0x0
9. UL 550 Wax EISA BA (11) at 0xfc000000, versions 0x31, 0x0, 0x90, 0x0, 0x0,  additional addresses: 0xf0088000 
10. Gecko BOA BC GSC+ Port (7) at 0xfff80000, versions 0x500, 0x0, 0xc, 0x0, 0x0
11. Bluefish Add-on FW-SCSI (4) at 0xfff84000, versions 0x13, 0x1, 0x89, 0x0, 0x80
12. Unknown device (0) at 0xfffbe000, versions 0x484, 0x0, 0x4, 0x0, 0x81
13. UL Proc L 100 (1) at 0xfffbf000, versions 0x57, 0x0, 0x9, 0x0, 0x0
That's a total of 13 devices.
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=192.168.1.10 console=ttyB
Calibrating delay loop... 99.73 BogoMIPS
Memory: 126668k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xf0100000 found.
LED display at f010c000 registered
Wax at 0xffe00000 found.
Wax: HIL Keyboard-NMI registered.
Wax EISA bus adapter version 0x5761 at 0xffe00000
Initializing Lasi PS/2-keyboard port at 0xf0108000...
Support for Lasi PS/2-psaux not yet available !
Found i82596 at 0xf0107000, IRQ 87
early initialization of device eth0 is deferred
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 U<4>Lasi PS/2 transmit buffer timeout
Lasi PS/2 transmit buffer timeout
/2 transmit buffer timlp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
eth0: 82596 at 0xf0107000, 08 00 09 AE 88 00 IRQ 87.
82596.c $Revision: 1.18 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Testing ttyS0 (0x0000, 0xffe02800)...
ttyS00 at iomem 0xffe02800 (irq = 121) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c710 (SCSI-ID 7) at f0106100, IRQ 86, options 0
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: Good, target data areas are dma coherent
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: HP        Model: C1537A            Rev: HP02
  Type:   Sequential-Access                  ANSI SCSI revision: 02
  Vendor: TOSHIBA   Model: CD-ROM XM-5401TA  Rev: 1036
  Type:   CD-ROM                             ANSI SCSI revision: 02
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
ncr53c720-0: restart (scsi reset).
scsi1 : ncr53c8xx - version 3.3b
  Vendor: SEAGATE   Model: ST32550W          Rev: HP10
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST32550W          Rev: HP10
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34371W          Rev: HPM2
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 02
ncr53c720-0-<5,0>: tagged command queue depth set to 8
ncr53c720-0-<8,0>: tagged command queue depth set to 8
ncr53c720-0-<9,0>: tagged command queue depth set to 8
ncr53c720-0-<10,0>: tagged command queue depth set to 8
ncr53c720-0-<11,0>: tagged command queue depth set to 8
Detected scsi tape st0 at scsi0, channel 0, id 0, lun 0
st: bufsize 32768, wrt 30720, max init. buffers 4, s/g segs 16.
Detected scsi disk sda at scsi1, channel 0, id 5, lun 0
Detected scsi disk sdb at scsi1, channel 0, id 8, lun 0
Detected scsi disk sdc at scsi1, channel 0, id 9, lun 0
Detected scsi disk sdd at scsi1, channel 0, id 10, lun 0
Detected scsi disk sde at scsi1, channel 0, id 11, lun 0
ncr53c720-0-<5,0>: wide msgout: 1-2-3-1.
ncr53c720-0-<5,0>: wide msgin: 1-2-3-1.
ncr53c720-0-<5,0>: wide: wide=1 chg=0.
ncr53c720-0-<5,0>: sync_msgout: 1-3-1-19-8.
ncr53c720-0-<5,0>: sync msgin: 1-3-1-19-8.
ncr53c720-0-<5,0>: sync: per=25 scntl3=0x10 ofs=8 fak=0 chg=0.
ncr53c720-0-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sda: 4165272 512-byte hdwr sectors (2133 MB)
Partition check:
 sda: unknown partition table
ncr53c720-0-<8,0>: wide msgout: 1-2-3-1.
ncr53c720-0-<8,0>: wide msgin: 1-2-3-1.
ncr53c720-0-<8,0>: wide: wide=1 chg=0.
ncr53c720-0-<8,0>: sync_msgout: 1-3-1-19-8.
ncr53c720-0-<8,0>: sync msgin: 1-3-1-19-8.
ncr53c720-0-<8,0>: sync: per=25 scntl3=0x10 ofs=8 fak=0 chg=0.
ncr53c720-0-<8,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdb: 8388314 512-byte hdwr sectors (4295 MB)
 sdb: unknown partition table
ncr53c720-0-<9,0>: wide msgout: 1-2-3-1.
ncr53c720-0-<9,0>: wide msgin: 1-2-3-1.
ncr53c720-0-<9,0>: wide: wide=1 chg=0.
ncr53c720-0-<9,0>: sync_msgout: 1-3-1-19-8.
ncr53c720-0-<9,0>: sync msgin: 1-3-1-19-8.
ncr53c720-0-<9,0>: sync: per=25 scntl3=0x10 ofs=8 fak=0 chg=0.
ncr53c720-0-<9,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdc: 4165272 512-byte hdwr sectors (2133 MB)
 sdc: unknown partition table
ncr53c720-0-<10,0>: wide msgout: 1-2-3-1.
ncr53c720-0-<10,0>: wide msgin: 1-2-3-1.
ncr53c720-0-<10,0>: wide: wide=1 chg=0.
ncr53c720-0-<10,0>: sync_msgout: 1-3-1-19-8.
ncr53c720-0-<10,0>: sync msgin: 1-3-1-19-8.
ncr53c720-0-<10,0>: sync: per=25 scntl3=0x10 ofs=8 fak=0 chg=0.
ncr53c720-0-<10,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdd: 8388314 512-byte hdwr sectors (4295 MB)
 sdd: unknown partition table
ncr53c720-0-<11,0>: wide msgout: 1-2-3-1.
ncr53c720-0-<11,0>: wide msgin: 1-2-3-1.
ncr53c720-0-<11,0>: wide: wide=1 chg=0.
ncr53c720-0-<11,0>: sync_msgout: 1-3-1-19-8.
ncr53c720-0-<11,0>: sync msgin: 1-3-1-19-8.
ncr53c720-0-<11,0>: sync: per=25 scntl3=0x10 ofs=8 fak=0 chg=0.
ncr53c720-0-<11,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sde: 8388314 512-byte hdwr sectors (4295 MB)
 sde: unknown partition table
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 2, lun 0
Uniform CD-ROM driver Revision: 3.12
linear personality registered
raid0 personality registered
raid1 personality registered
raid5 personality registered
raid5: measuring checksumming speed
   8regs     :    75.819 MB/sec
   8regs_prefetch:    75.819 MB/sec
   32regs    :    88.392 MB/sec
   32regs_prefetch:    88.392 MB/sec
raid5: using function: 32regs_prefetch (88.392 MB/sec)
md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md.c: sizeof(mdp_super_t) = 4096
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
eth0: link ok.
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 192.168.1.10, my address is 192.168.1.25
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 192.168.1.10
Looking up port of RPC 100005/2 on 192.168.1.10
VFS: Mounted root (nfs filesystem) readonly.
Warning: unable to open an initial console.

So now, what major and minor should /dev/ttyB have to
function? /dev/console is 5 1 on my nfsroot.

Good job getting it to work this well, especially since it's listed as
untested! Also, the LCD on the front doesn't seem to do anything. What
needs to happen for that to work?

dave


-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems with 0.9 ISO Images from mkhppa1.esiee.fr
Date: Mon, 04 Jun 2001 13:40:50 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:11233

Thomas Bogendoerfer wrote:
...
> Another question: I've tried the 64bit kernel on the C200 and got a
> system not supported error. Is this a known problem or is the C200
> really too old ?

That's exactly the model which Ryan Bradetich was trying to get working.
He's got the 64-bit PDC wrapper calls working but then ran into problems
with SCSI...I don't have a C200 and I didn't have time to followup either.

So I don't think it quite works yet - but it's not much more work either.
I suggest installing 32-bit w/serial console (should work fine) and
then work on 64-bit support.

> J282 (which AFAIK is older) booted the 64bit kernel 
> just fine, but had some problems with the interrupt of the serial console
> during install.

J282 might have serial on Dino and Clement (ESIEE) just hacked some support
for that...but I know it's not on the 0.9 ISOs. Booting from a lifimage
(newer kernel plus Dino patch) might work better.

BTW, Rbrad suspects current ccio driver is buggy and some older version
works better.  One which doesn't try to coalesce dma_map_sg() block lists.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Michael S.Zick <mszick@pflash.com>
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Subject: Re: [parisc-linux] D310 boot messages
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Xref: news.gmane.org gmane.linux.ports.parisc:11234

Thanks for the feedback -

Your boot ends at the same point mine does -

I suspect that an entry needs to be made in /dev for the ttyB
device and probably a line in /etc/inittab to proc a getty on it -

But I am just guessing - a *nix expert will have to tell us how.

Your message listing tells me a lot - my 9000/720 uses the same
SCSI driver but doesn't work (yet) -

I have in the past (last week) built a working kernel - that used the
STI driver and did not need the "ttyB" hack to by-pass its call to
"register_console" in function "__init con_init of file linux/drivers/cha=
r/console.c

A seemingly related problem is getting my machine's HIL devices recognize=
d -
but the changes I made to fix the crator-on console_init fixed that also =
-
now, if I can only find my notes.

So - I will find how I did that - put it back into this V0.9 kernel, then=
 proceed to
learn why the LASI-Sim700 driver for the 53c7xx doesn't work on my model =
720.

I'll keep the list posted on what, if anything, I can find.

On Mon, 04 Jun 2001, djweis@sjdjweis.com wrote:
> I looked through the kernel source for a while and found the pdc/iodc
> console driver and changed my palo config to use ttyB and got a mostly
> complete boot! Here are the boot messages:
>=20
> Firmware Version  36.34
>=20
> Duplex Console IO Dependent Code (IODC) revision 4
>=20
> -----------------------------------------------------------------------=
-------
>    (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserve=
d
> -----------------------------------------------------------------------=
-------
>=20
>     Speed    Coprocessor State  Cache Size
>   ---------  -----------------  ----------
>    100 MHz   Functional          256 KB
>=20
>   128 MB of memory configured and tested.
>=20
>   Primary boot path:    4.5   (dec)  =20
>   Alternate boot path:  16/5.2   (dec)  =20
>   Console path:         0/0.0   (dec)  =20
>   Keyboard path:        16/7.0   (dec)  =20
>=20
> Processor is booting from first available device.
>=20
> To discontinue, press any key within 10 seconds.
>=20
> Boot terminated.
>=20
>=20
> ------- Main Menu -----------------------------------------------------=
--------
>=20
>         Command                         Description
>         -------                         -----------
>         BOot [PRI|ALT|<path>]           Boot from specified path
>         PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
>         SEArch [DIsplay|IPL] [<path>]   Search for boot devices
>=20
>         COnfiguration [<command>]       Access Configuration menu/comma=
nds
>         INformation [<command>]         Access Information menu/command=
s
>         SERvice [<command>]             Access Service menu/commands
>=20
>         DIsplay                         Redisplay the current menu
>         HElp [<menu>|<command>]         Display help for menu or comman=
d
>         RESET                           Restart the system
> -------
> Main Menu: Enter command > boot lan
> Interact with IPL (Y or N)?> n
>=20
> Booting...=20
> Network Station Address 080009-ae8800
>=20
> Boot IO Dependent Code (IODC) revision 2
>=20
>=20
> HARD Booted.
> palo ipl 0.91 djweis@djweis.internal.sjdjweis.com Sun Jun  3 21:02:48 C=
DT 2001
> 0/vmlinux 2602334 bytes @ 0x7000
> Kernel: partition 0 file /vmlinux
> ELF32 executable
> Entry 00100000 first 00100000 n 5
> Segment 0 load 00100000 size 1507276 mediaptr 0x1000
> Segment 1 load 00270000 size 181552 mediaptr 0x171000
> Segment 2 load 002a0000 size 221560 mediaptr 0x19e000
> Segment 3 load 002d8000 size 8192 mediaptr 0x1d5000
> Segment 4 load 00305e88 size 75552 mediaptr 0x1d7e88
> branching to kernel entry point 0x00100000
> Set default PSW W bit to 0
> PDC Console Initialized
> Linux version 2.4.0-pa10 (djweis@djweis.internal.sjdjweis.com) (gcc ver=
sion 3.0 20010315 (prerelease)) #9 Mon Jun 4 12:50:30 CDT 2001
> FP[0] enabled: Rev 1 Model 13
> The 32-bit Kernel has started...
> Determining PDC firmware type: Newer Box
> setup_cmdline(0x65328,0x65328,0x0,0x0)
> PALO command line: 'HOME=3D/ TERM=3Dlinux root=3D/dev/nfs nfsroot=3D192=
=2E168.1.10 console=3DttyB'
> PALO initrd 0-0
> model   00004840 00000481 00000000 00000000 77361cea 100000f0 00000004 =
00000072 00000072
> vers    0000000c
> CPUID   vers 0 rev 0
> model   9000/811/D310
> Total Memory: 128 Mb
> initrd: 00000000-00000000
> pagetable_init
> On node 0 totalpages: 32768
> zone(0): 32768 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> Searching for devices...
> Found devices:
> 1. UL 550 Lasi Core BA (11) at 0xf0100000, versions 0x2f, 0x0, 0x81, 0x=
0, 0x0,  additional addresses: 0xf010c000 0xf0100000=20
> 2. UL 550 Core SCSI (10) at 0xf0106000, versions 0x2f, 0x0, 0x82, 0x0, =
0x0
> 3. UL 350 Core LAN (802.3) (10) at 0xf0107000, versions 0x2f, 0x0, 0x8a=
, 0x0, 0x0
> 4. UL 550 Core Centronics (10) at 0xf0102000, versions 0x2f, 0x0, 0x74,=
 0x0, 0x0,  additional addresses: 0xf0101000 0xf0103000=20
> 5. UL 550 Core PC Keyboard (10) at 0xf0108000, versions 0x2f, 0x0, 0x84=
, 0x0, 0x0
> 6. UL 550 Core PC Keyboard (10) at 0xf0108100, versions 0x2f, 0x0, 0x84=
, 0x0, 0x0
> 7. UL 550 Core Wax BA (11) at 0xffe00000, versions 0x31, 0x0, 0x8e, 0x0=
, 0x0
> 8. UL 550 Wax Core RS-232 (10) at 0xffe02000, versions 0x31, 0x0, 0x8c,=
 0x0, 0x0
> 9. UL 550 Wax EISA BA (11) at 0xfc000000, versions 0x31, 0x0, 0x90, 0x0=
, 0x0,  additional addresses: 0xf0088000=20
> 10. Gecko BOA BC GSC+ Port (7) at 0xfff80000, versions 0x500, 0x0, 0xc,=
 0x0, 0x0
> 11. Bluefish Add-on FW-SCSI (4) at 0xfff84000, versions 0x13, 0x1, 0x89=
, 0x0, 0x80
> 12. Unknown device (0) at 0xfffbe000, versions 0x484, 0x0, 0x4, 0x0, 0x=
81
> 13. UL Proc L 100 (1) at 0xfffbf000, versions 0x57, 0x0, 0x9, 0x0, 0x0
> That's a total of 13 devices.
> CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
> Kernel command line: HOME=3D/ TERM=3Dlinux root=3D/dev/nfs nfsroot=3D19=
2.168.1.10 console=3DttyB
> Calibrating delay loop... 99.73 BogoMIPS
> Memory: 126668k available
> Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
> Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
> Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
> POSIX conformance testing by UNIFIX
> Lasi version 0 at 0xf0100000 found.
> LED display at f010c000 registered
> Wax at 0xffe00000 found.
> Wax: HIL Keyboard-NMI registered.
> Wax EISA bus adapter version 0x5761 at 0xffe00000
> Initializing Lasi PS/2-keyboard port at 0xf0108000...
> Support for Lasi PS/2-psaux not yet available !
> Found i82596 at 0xf0107000, IRQ 87
> early initialization of device eth0 is deferred
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Starting kswapd v1.8
> pty: 256 U<4>Lasi PS/2 transmit buffer timeout
> Lasi PS/2 transmit buffer timeout
> /2 transmit buffer timlp: driver loaded but no devices found
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> eth0: 82596 at 0xf0107000, 08 00 09 AE 88 00 IRQ 87.
> 82596.c $Revision: 1.18 $
> Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIA=
L_PCI enabled
> Testing ttyS0 (0x0000, 0xffe02800)...
> ttyS00 at iomem 0xffe02800 (irq =3D 121) is a 16550A
> Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
> parport_init_chip: initialize bidirectional-mode.
> parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
> lp0: using parport0 (interrupt-driven).
> SCSI subsystem driver Revision: 1.00
> sim700: Configuring 53c710 (SCSI-ID 7) at f0106100, IRQ 86, options 0
> scsi0: Revision 0x2
> Post test1, istat 01, sstat0 00, dstat 84
> sim700: WARNING IRQ probe failed, (returned 0)
> scsi0: Good, target data areas are dma coherent
> scsi0: test 1 completed ok.
> scsi0 : LASI/Simple 53c7xx
>   Vendor: HP        Model: C1537A            Rev: HP02
>   Type:   Sequential-Access                  ANSI SCSI revision: 02
>   Vendor: TOSHIBA   Model: CD-ROM XM-5401TA  Rev: 1036
>   Type:   CD-ROM                             ANSI SCSI revision: 02
> zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
> ncr53c8xx: 53c720 detected
> ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
> ncr53c720-0: restart (scsi reset).
> scsi1 : ncr53c8xx - version 3.3b
>   Vendor: SEAGATE   Model: ST32550W          Rev: HP10
>   Type:   Direct-Access                      ANSI SCSI revision: 02
>   Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
>   Type:   Direct-Access                      ANSI SCSI revision: 02
>   Vendor: SEAGATE   Model: ST32550W          Rev: HP10
>   Type:   Direct-Access                      ANSI SCSI revision: 02
>   Vendor: SEAGATE   Model: ST34371W          Rev: HPM2
>   Type:   Direct-Access                      ANSI SCSI revision: 02
>   Vendor: SEAGATE   Model: ST34573WC         Rev: HP05
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> ncr53c720-0-<5,0>: tagged command queue depth set to 8
> ncr53c720-0-<8,0>: tagged command queue depth set to 8
> ncr53c720-0-<9,0>: tagged command queue depth set to 8
> ncr53c720-0-<10,0>: tagged command queue depth set to 8
> ncr53c720-0-<11,0>: tagged command queue depth set to 8
> Detected scsi tape st0 at scsi0, channel 0, id 0, lun 0
> st: bufsize 32768, wrt 30720, max init. buffers 4, s/g segs 16.
> Detected scsi disk sda at scsi1, channel 0, id 5, lun 0
> Detected scsi disk sdb at scsi1, channel 0, id 8, lun 0
> Detected scsi disk sdc at scsi1, channel 0, id 9, lun 0
> Detected scsi disk sdd at scsi1, channel 0, id 10, lun 0
> Detected scsi disk sde at scsi1, channel 0, id 11, lun 0
> ncr53c720-0-<5,0>: wide msgout: 1-2-3-1.
> ncr53c720-0-<5,0>: wide msgin: 1-2-3-1.
> ncr53c720-0-<5,0>: wide: wide=3D1 chg=3D0.
> ncr53c720-0-<5,0>: sync_msgout: 1-3-1-19-8.
> ncr53c720-0-<5,0>: sync msgin: 1-3-1-19-8.
> ncr53c720-0-<5,0>: sync: per=3D25 scntl3=3D0x10 ofs=3D8 fak=3D0 chg=3D0=
=2E
> ncr53c720-0-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
> SCSI device sda: 4165272 512-byte hdwr sectors (2133 MB)
> Partition check:
>  sda: unknown partition table
> ncr53c720-0-<8,0>: wide msgout: 1-2-3-1.
> ncr53c720-0-<8,0>: wide msgin: 1-2-3-1.
> ncr53c720-0-<8,0>: wide: wide=3D1 chg=3D0.
> ncr53c720-0-<8,0>: sync_msgout: 1-3-1-19-8.
> ncr53c720-0-<8,0>: sync msgin: 1-3-1-19-8.
> ncr53c720-0-<8,0>: sync: per=3D25 scntl3=3D0x10 ofs=3D8 fak=3D0 chg=3D0=
=2E
> ncr53c720-0-<8,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
> SCSI device sdb: 8388314 512-byte hdwr sectors (4295 MB)
>  sdb: unknown partition table
> ncr53c720-0-<9,0>: wide msgout: 1-2-3-1.
> ncr53c720-0-<9,0>: wide msgin: 1-2-3-1.
> ncr53c720-0-<9,0>: wide: wide=3D1 chg=3D0.
> ncr53c720-0-<9,0>: sync_msgout: 1-3-1-19-8.
> ncr53c720-0-<9,0>: sync msgin: 1-3-1-19-8.
> ncr53c720-0-<9,0>: sync: per=3D25 scntl3=3D0x10 ofs=3D8 fak=3D0 chg=3D0=
=2E
> ncr53c720-0-<9,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
> SCSI device sdc: 4165272 512-byte hdwr sectors (2133 MB)
>  sdc: unknown partition table
> ncr53c720-0-<10,0>: wide msgout: 1-2-3-1.
> ncr53c720-0-<10,0>: wide msgin: 1-2-3-1.
> ncr53c720-0-<10,0>: wide: wide=3D1 chg=3D0.
> ncr53c720-0-<10,0>: sync_msgout: 1-3-1-19-8.
> ncr53c720-0-<10,0>: sync msgin: 1-3-1-19-8.
> ncr53c720-0-<10,0>: sync: per=3D25 scntl3=3D0x10 ofs=3D8 fak=3D0 chg=3D=
0.
> ncr53c720-0-<10,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
> SCSI device sdd: 8388314 512-byte hdwr sectors (4295 MB)
>  sdd: unknown partition table
> ncr53c720-0-<11,0>: wide msgout: 1-2-3-1.
> ncr53c720-0-<11,0>: wide msgin: 1-2-3-1.
> ncr53c720-0-<11,0>: wide: wide=3D1 chg=3D0.
> ncr53c720-0-<11,0>: sync_msgout: 1-3-1-19-8.
> ncr53c720-0-<11,0>: sync msgin: 1-3-1-19-8.
> ncr53c720-0-<11,0>: sync: per=3D25 scntl3=3D0x10 ofs=3D8 fak=3D0 chg=3D=
0.
> ncr53c720-0-<11,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
> SCSI device sde: 8388314 512-byte hdwr sectors (4295 MB)
>  sde: unknown partition table
> Detected scsi CD-ROM sr0 at scsi0, channel 0, id 2, lun 0
> Uniform CD-ROM driver Revision: 3.12
> linear personality registered
> raid0 personality registered
> raid1 personality registered
> raid5 personality registered
> raid5: measuring checksumming speed
>    8regs     :    75.819 MB/sec
>    8regs_prefetch:    75.819 MB/sec
>    32regs    :    88.392 MB/sec
>    32regs_prefetch:    88.392 MB/sec
> raid5: using function: 32regs_prefetch (88.392 MB/sec)
> md driver 0.90.0 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27
> md.c: sizeof(mdp_super_t) =3D 4096
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 8192 bind 16384)
> eth0: link ok.
> Sending BOOTP requests.... OK
> IP-Config: Got BOOTP answer from 192.168.1.10, my address is 192.168.1.=
25
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> Looking up port of RPC 100003/2 on 192.168.1.10
> Looking up port of RPC 100005/2 on 192.168.1.10
> VFS: Mounted root (nfs filesystem) readonly.
> Warning: unable to open an initial console.
>=20
> So now, what major and minor should /dev/ttyB have to
> function? /dev/console is 5 1 on my nfsroot.
>=20
> Good job getting it to work this well, especially since it's listed as
> untested! Also, the LCD on the front doesn't seem to do anything. What
> needs to happen for that to work?
>=20
> dave
>=20
>=20
> --=20
> Dave Weis             "I believe there are more instances of the abridg=
ement
> djweis@sjdjweis.com   of the freedom of the people by gradual and silen=
t
>                       encroachments of those in power than by violent=20
>                       and sudden usurpations."- James Madison
>=20
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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Subject: Re: [parisc-linux] D310 boot messages
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To: "Michael S. Zick" <mszick@pflash.com>
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On Mon, 4 Jun 2001, Michael S. Zick wrote:
> Thanks for the feedback -
> Your boot ends at the same point mine does -
> 
> I suspect that an entry needs to be made in /dev for the ttyB
> device and probably a line in /etc/inittab to proc a getty on it -
> 
> But I am just guessing - a *nix expert will have to tell us how.

I'll try it out in a little bit and report back when I get home.

dave

> Your message listing tells me a lot - my 9000/720 uses the same
> SCSI driver but doesn't work (yet) -
> 
> I have in the past (last week) built a working kernel - that used the
> STI driver and did not need the "ttyB" hack to by-pass its call to
> "register_console" in function "__init con_init of file linux/drivers/char/console.c
> 
> A seemingly related problem is getting my machine's HIL devices recognized -
> but the changes I made to fix the crator-on console_init fixed that also -
> now, if I can only find my notes.
> 
> So - I will find how I did that - put it back into this V0.9 kernel, then proceed to
> learn why the LASI-Sim700 driver for the 53c7xx doesn't work on my model 720.
> 
> I'll keep the list posted on what, if anything, I can find.
> 

-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems with 0.9 ISO Images from mkhppa1.esiee.fr
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To: Grant Grundler <grundler@puffin.external.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11236

On Mon, Jun 04, 2001 at 01:40:50PM -0600, Grant Grundler wrote:
> So I don't think it quite works yet - but it's not much more work either.
> I suggest installing 32-bit w/serial console (should work fine) and

that's what I did, just wondered a little bit.

> J282 might have serial on Dino and Clement (ESIEE) just hacked some support

I don't think so, J282 doesn't even have PCI. Right now I can't boot it,
because I've disassembled my computer room, but if memory serves right
serial is attached to either wax or lasi.

> for that...but I know it's not on the 0.9 ISOs. Booting from a lifimage
> (newer kernel plus Dino patch) might work better.

even without having Dino ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] D310 boot messages
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Xref: news.gmane.org gmane.linux.ports.parisc:11237

On Mon, Jun 04, 2001 at 02:16:49PM -0500, djweis@sjdjweis.com wrote:
> So now, what major and minor should /dev/ttyB have to
> function? /dev/console is 5 1 on my nfsroot.

My understanding of the pdc console is that it is output only,
used only until a real console device is available, and so wont
work as a linux console.  Hopefully someone will correct me if I'm
wrong.

> Good job getting it to work this well, especially since it's listed as
> untested! Also, the LCD on the front doesn't seem to do anything. What
> needs to happen for that to work?

I turned off LCD support in the release kernels because of reports
that it was causing problems on some systems.  See
<http://bugs.parisc-linux.org/db/10/104.html>.  You can turn it
back on if you build your own kernel.

Richard





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From: jheumann@fonts.de
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 0.9ser can't install on D210
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Xref: news.gmane.org gmane.linux.ports.parisc:11238

please help,

i can't load linux pa-risc 0.9seriell on my HP9000/D210.
Why?

(HP-UX 10.20 is running....)

Jan Heumann
jheumann@fonts.de
-----------------------------------------------------
Main Menu: Enter command > search

Searching for potential boot device(s)...
This may take several minutes.

To discontinue search, press any key (termination may not be immediate).



   Path Number        Device Path (dec)        Device Type
   -----------        -----------------        -----------
   P0                 4.5                      Random access media
   P1                 4.8                      Random access media
   P2                 16/5.2                   Random access media
   P3                 16/6.0                   LAN Module


Main Menu: Enter command > boot p2
Interact with IPL (Y or N)?> n

Booting...
Boot IO Dependent Code (IODC) revision 1

IPL error: bad IPL checksum.

Error Reading IPL

Main Menu: Enter command > search

Searching for potential boot device(s)...
This may take several minutes.

To discontinue search, press any key (termination may not be immediate).



   Path Number        Device Path (dec)        Device Type
   -----------        -----------------        -----------
   P0                 4.5                      Random access media
   P1                 4.8                      Random access media
   P2                 16/5.2                   Random access media
   P3                 16/6.0                   LAN Module


Main Menu: Enter command > boot p2
Interact with IPL (Y or N)?> y

Booting...
Boot IO Dependent Code (IODC) revision 1

IPL error: bad IPL checksum.

Error Reading IPL

--------------------------------------------------------

information all

PROCESSOR INFORMATION

             HVERSION  SVERSION   CVERSION
    Speed     Model    Model/Op  (Revision)
  ---------  --------  --------  ----------
   100 MHz    0x4840    0x0481       12

  HSC Bus Speed (in MHz) :         33
  Software ID (dec)      : 2009187834
  Software ID (hex)      : 0x77c1c5fa
  Software Capability    : 0xf0


<Press any key to continue (q to quit)>

COPROCESSOR INFORMATION

      Coprocessor      Coprocessor       Coprocessor
         Model          Revision            State
      -----------      -----------      -------------
       0x0000000d              1         Functional


CACHE INFORMATION

      Instruction Cache Size    Data Cache Size
      -----------------------   ---------------
       128 KB                    128 KB

<Press any key to continue (q to quit)>

MEMORY INFORMATION

   Slot        Card Size        Amount Enabled
   ----        ---------        --------------
    0            64 MB            64 MB
    1            64 MB            64 MB
    2            64 MB            64 MB
    3            64 MB            64 MB
    4            64 MB            64 MB
    5            64 MB            64 MB

  Physical Memory:     384 MB      (0x18000000)
  Configured Memory:   384 MB      (0x18000000)

<Press any key to continue (q to quit)>

I/O MODULE INFORMATION
                                                               IODC
IODC
Path (dec)   Type                Slot Mod HVERSION  SVERSION   Vers
Dep
----         ----                ---- --- -------- ---------- ------
------
4            A DMA I/O             1   0   0x0131  0x00008980  0x07
0x00
16           Bus Adapter           4   0   0x02e0  0x00008100  0x00
0x00
16/4         Built-in RS232        1   0   0x02e0  0x00008c00  0x01
0x00
16/5         Built-in SE SCSI      1   1   0x02e0  0x00008200  0x01
0x00
16/6         Built-in LAN          1   2   0x02e0  0x00008a00  0x02
0x00
16/0         Built-in Parallel     0   0   0x02e0  0x00007400  0x00
0x00
16/7         Built-in Keyboard     1   3   0x02e0  0x00008400  0x00
0x00
16/8         Built-in Mouse        2   0   0x02e0  0x00008400  0x00
0x00
20           Bus Adapter           5   0   0x0300  0x00008e00  0x00
0x00
20/2         RS232 Port            0   2   0x0300  0x00008c00  0x01
0x00
20/5         Bus Adapter           1   1   0x0300  0x00009000  0x00
0x00

<Press any key to continue (q to quit)>

Hot Swap module is present.

EISA Cards

Path        Type                            EISA ID
----        ----                            -------
20/5/1      EISA card                       0x25d00400
20/5/2      EISA slot is empty
20/5/3      EISA slot is empty
20/5/4      EISA slot is empty

<Press any key to continue (q to quit)>

BOOT INFORMATION

  Autoboot:             ON
  Autosearch:           ON
  Fastboot:             OFF

  Primary boot path:    4.8   (dec)
                        04.8   (hex)
  Alternate boot path:  16/5.2   (dec)
                        10/05.2   (hex)
  Console path:         16/4.0   (dec)
                        10/04.0   (hex)
  Keyboard path:        16/7.0   (dec)
                        10/07.0   (hex)

  LAN Station Address:  080009-af13c8

  Mon Jan  5 21:15:36 GMT 1970    (19:70:01:05:21:15:36)

<Press any key to continue (q to quit)>

FIRMWARE INFORMATION

  Firmware Version:     36.34


CHIP REVISIONS

  Module                           Revision
  ------                           --------
  System Board                     0
  Processor Board                  2
  PA 7100LC                        12
  Firmware                         20
  Fast/Wide SCSI Board             1
  Multifunction I/O Controller     0
  EISA Interface                   0

<Press any key to continue (q to quit)>

WARNINGS

No warnings to report.

Information Menu: Enter command >
















From - Thu Nov 08 21:17:56 2018
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Subject: Re: [parisc-linux] D310 boot messages
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Cc: parisc-linux@parisc-linux.org
To: Richard Hirst <rhirst@linuxcare.com>
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Tue Jun  5 06:25:34 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:11239

On Tue, 5 Jun 2001, Richard Hirst wrote:
> On Mon, Jun 04, 2001 at 02:16:49PM -0500, djweis@sjdjweis.com wrote:
> > So now, what major and minor should /dev/ttyB have to
> > function? /dev/console is 5 1 on my nfsroot.
> My understanding of the pdc console is that it is output only,
> used only until a real console device is available, and so wont
> work as a linux console.  Hopefully someone will correct me if I'm
> wrong.

Okay, what needs to be done to make this all work? Is the console config
fine except for the fact that it stops working after the serial init?

> > Good job getting it to work this well, especially since it's listed as
> > untested! Also, the LCD on the front doesn't seem to do anything. What
> > needs to happen for that to work?
> I turned off LCD support in the release kernels because of reports
> that it was causing problems on some systems.  See
> <http://bugs.parisc-linux.org/db/10/104.html>.  You can turn it
> back on if you build your own kernel.

If it's known not to work, that's good enough reason not to mess with it
yet.

I grabbed the bigger nfsroot and got my machine booting from it last
night. telnet/rlogin/rsh wouldn't work, so I used the script kiddie remote
login method and added 
3333	stream	tcp	nowait	root	/bin/sh sh -i
to inetd.conf and can get in to the machine. If there's anything I can do
on there to help in debugging the serial problem, let me know. 

dave


-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





From - Thu Nov 08 21:17:56 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 0.9ser can't install on D210
Date: Tue, 5 Jun 2001 13:47:19 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:11240

On Tue, Jun 05, 2001 at 12:23:14PM +0200, jheumann@fonts.de wrote:
> please help,
> 
> i can't load linux pa-risc 0.9seriell on my HP9000/D210.
> Why?

You will see from <http://parisc-linux.org/release-0.9/systems.html>
that D series machines have not been tested.  However, your problem
looks more like trouble reading the CD.  Can you mount the CD on some
other system and see the contents, just to check the CD is burned
properly?

Alternatively you could try a network boot, as described in the
README on the CD.

Richard


> 
> (HP-UX 10.20 is running....)
> 
> Jan Heumann
> jheumann@fonts.de
> -----------------------------------------------------
> Main Menu: Enter command > search
> 
> Searching for potential boot device(s)...
> This may take several minutes.
> 
> To discontinue search, press any key (termination may not be immediate).
> 
> 
> 
>    Path Number        Device Path (dec)        Device Type
>    -----------        -----------------        -----------
>    P0                 4.5                      Random access media
>    P1                 4.8                      Random access media
>    P2                 16/5.2                   Random access media
>    P3                 16/6.0                   LAN Module
> 
> 
> Main Menu: Enter command > boot p2
> Interact with IPL (Y or N)?> n
> 
> Booting...
> Boot IO Dependent Code (IODC) revision 1
> 
> IPL error: bad IPL checksum.
> 
> Error Reading IPL
> 
> Main Menu: Enter command > search




From - Thu Nov 08 21:17:56 2018
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From: Michael S.Zick <mszick@pflash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Version 0.9 of PA-RISC Linux Released
Date: Tue, 5 Jun 2001 07:24:31 -0500
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To: Andrew Shugg <andrew@neep.com.au>
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Matthew -

Great idea - both sites should CLEARLY cross-link their information pages=
=2E

My own suggestions:
1) - leave the /devel directory on the CD image until at least
version 12.0.0 of pa-risc.linux.

I am using the kernel snap-shot of 06/03/2001 - in the hopes
that it is close to what was used to build the kernels in V0.9 -
but that is only a guess on my part

2) - don't drop a built kernel into an image of even a pre-release
CD until it compiles error (and warning) free.

Some of the problems I have found and fixed were clearly
mentioned by the compiler.

3) - Note to others trying fix "Old Box" support -

Please use a command line such as:
date >0603_something_cmnd.txt ; \
date >0603_something_errs.txt ; \
make vmlinux (or whatever) >>0603_something_cmnd.txt 2>>0603_something_er=
rs.txt

Then tar-zip the linux/.config, ...cmnd.txt, and the ...errs.txt -
attach to e-mail directed to Mike <mszick@pfash.com>

The more paths through this code taken by the compiler, the faster=20
I should be able to find (and maybe fix) the "Old Box" support.

4) - Note to folks posting the daily kernel snapshots -
4.a) - Please make the "daily snapshots" contain only changed
files from the prior "daily snapshot".
4.b) - Please make a "complete" kernel snapshot only once
a week.
4.c) - Please include the three files mentioned above in
each and every snapshot.

Being able to diff those three files is a big aid in making
progress on these problems.

Mike

On Tue, 05 Jun 2001, Andrew Shugg wrote:
> Matthew Wilcox said:
> > Well, 720 is explicitly mentioned as not yet being supported.
>=20
> I'm not sure who is looking after the debian-hppa web page at
> /ports/hppa/ (glad to see it is being kept up to date though!) but
> perhaps whomever it is could point to the parisc-linux.org hardware
> compatibility page.
>=20
>   http://parisc-linux.org/release-0.9/systems.html
>   http://parisc-linux.org/hardware/supported.html
>=20
> Or perhaps its information could be paraphrased on the debian-hppa page
> for first-time visitors?  eg "for the curious amongst you, the followin=
g
> systems work: xxx, these maybe work yyy, and these definitely don't zzz=
"
>=20
> Andrew.
>=20
> --
> Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com=
=2Eau/
>=20
> "Just remember, Mr Fawlty, there's always someone worse off than yourse=
lf."
> "Is there?  Well I'd like to meet him.  I could do with a good laugh."
>=20
>=20
> -- =20
> To UNSUBSCRIBE, email to debian-hppa-request@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debi=
an.org




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From: Thomas Bogendoerfer <tsbogend@chico.franken.de>
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Subject: Re: [parisc-linux] 0.9ser can't install on D210
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Xref: news.gmane.org gmane.linux.ports.parisc:11242

On Tue, Jun 05, 2001 at 12:23:14PM +0200, jheumann@fonts.de wrote:
> Booting...
> Boot IO Dependent Code (IODC) revision 1
> 
> IPL error: bad IPL checksum.
> 
> Error Reading IPL

did you use cdrecord -isosize to burn the CD ? I have the same problem and 
that's the only option, which I probably haven't used, when burning the 
0.5 ISO. I'll try to burn a cd without using -isosize, when I get home
this evening.

Thomas.





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From: Michael S.Zick <mszick@pflash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 0.9ser can't install on D210
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To: jheumann@fonts.de
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All -
OR, you might:

$>gunzip whatever.CD.ISO.gz
#>losetup /dev/loop0 ${whatever_path}/watever.CD.ISO
#>$mount -r -t iso9660 /dev/loop0 /somewhere

now you can browse the CD image to your hearts content.
also you can mount upto ten of these things (loop0-loop9) at
the same time.

Of course, you did build your kernel with the "loop device" and
"iso9660 filesystem support" didn't you?

PS: You can use similar commands to browse (and modify) your
ramdisk.bin files.

Mike

On Tue, 05 Jun 2001, Richard Hirst wrote:
> On Tue, Jun 05, 2001 at 12:23:14PM +0200, jheumann@fonts.de wrote:
> > please help,
> >=20
> > i can't load linux pa-risc 0.9seriell on my HP9000/D210.
> > Why?
>=20
> You will see from <http://parisc-linux.org/release-0.9/systems.html>
> that D series machines have not been tested.  However, your problem
> looks more like trouble reading the CD.  Can you mount the CD on some
> other system and see the contents, just to check the CD is burned
> properly?
>=20
> Alternatively you could try a network boot, as described in the
> README on the CD.
>=20
> Richard
>=20
>=20
> >=20
> > (HP-UX 10.20 is running....)
> >=20
> > Jan Heumann
> > jheumann@fonts.de
> > -----------------------------------------------------
> > Main Menu: Enter command > search
> >=20
> > Searching for potential boot device(s)...
> > This may take several minutes.
> >=20
> > To discontinue search, press any key (termination may not be immediat=
e).
> >=20
> >=20
> >=20
> >    Path Number        Device Path (dec)        Device Type
> >    -----------        -----------------        -----------
> >    P0                 4.5                      Random access media
> >    P1                 4.8                      Random access media
> >    P2                 16/5.2                   Random access media
> >    P3                 16/6.0                   LAN Module
> >=20
> >=20
> > Main Menu: Enter command > boot p2
> > Interact with IPL (Y or N)?> n
> >=20
> > Booting...
> > Boot IO Dependent Code (IODC) revision 1
> >=20
> > IPL error: bad IPL checksum.
> >=20
> > Error Reading IPL
> >=20
> > Main Menu: Enter command > search
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] D310 boot messages
Date: Tue, 5 Jun 2001 14:51:56 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:11244

So with the nfsroot you have the D310 booting, but with the 0.9 ISO
it stops after serial driver initialisation.

What kernel are you using with the nfsroot?

What parameters is it booted with?

Richard

> I grabbed the bigger nfsroot and got my machine booting from it last
> night. telnet/rlogin/rsh wouldn't work, so I used the script kiddie remote
> login method and added 
> 3333	stream	tcp	nowait	root	/bin/sh sh -i
> to inetd.conf and can get in to the machine. If there's anything I can do
> on there to help in debugging the serial problem, let me know. 




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On Tue, 5 Jun 2001, Richard Hirst wrote:

> So with the nfsroot you have the D310 booting, but with the 0.9 ISO
> it stops after serial driver initialisation.

No, if I boot off the cd, I get IPL errors. When I netboot the kernel off
the cd, it stopped at serial init. I don't think it actually stopped, I
think it no longer printed but still booted.

> What kernel are you using with the nfsroot?

linux-20010603.tar.gz from the ftp site, built by me with the xc from the
ftp site.

> What parameters is it booted with?

./palo/palo -f /dev/null \
-b iplboot \
-k /home/djweis/HP/linux/vmlinux \
 \
-c "0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=192.168.1.10
console=ttyB" \
	-s lifimage

If I set the console back to ttyS0 it stops printing after the serial
init, but if I leave it at ttyB I can see where it gets to the point of
not having an initial console. The serial driver doesn't seem to be
working, I telnet in and run echo hello > /dev/ttyS0 and it doesn't show
up on the machine running minicom. I have two serial ports on the back,
plus the UPS monitoring port, but only one serial port is
probed/acknowledged.

dave

-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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Subject: Re: [parisc-linux] D310 boot messages
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Xref: news.gmane.org gmane.linux.ports.parisc:11246

On Tue, Jun 05, 2001 at 09:14:05AM -0500, djweis@sjdjweis.com wrote:
> 
> On Tue, 5 Jun 2001, Richard Hirst wrote:
> 
> > So with the nfsroot you have the D310 booting, but with the 0.9 ISO
> > it stops after serial driver initialisation.
> 
> No, if I boot off the cd, I get IPL errors. When I netboot the kernel off
> the cd, it stopped at serial init. I don't think it actually stopped, I
> think it no longer printed but still booted.

Ah, ok.  I'd misunderstood you.  So the kernel on the CD is no
different from the one you built yourself.  That's a relief!

Have you checked both serial ports, just in case the one the
kernel finds isn't the one you are using?

>From the boot msgs you sent earlier, it looks like you turned
SERIAL_DEBUG_AUTOCONF on.  Does it actually run the loopback
test at serial.c:3671 successfully?

Richard





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On Tue, 5 Jun 2001, Richard Hirst wrote:
> On Tue, Jun 05, 2001 at 09:14:05AM -0500, djweis@sjdjweis.com wrote:
> > On Tue, 5 Jun 2001, Richard Hirst wrote:
> > > So with the nfsroot you have the D310 booting, but with the 0.9 ISO
> > > it stops after serial driver initialisation.
> > 
> > No, if I boot off the cd, I get IPL errors. When I netboot the kernel off
> > the cd, it stopped at serial init. I don't think it actually stopped, I
> > think it no longer printed but still booted.
> 
> Ah, ok.  I'd misunderstood you.  So the kernel on the CD is no
> different from the one you built yourself.  That's a relief!
> 
> Have you checked both serial ports, just in case the one the
> kernel finds isn't the one you are using?

I tried it once with no luck. I could try again with a different kernel,
but I am using serial1.

> >From the boot msgs you sent earlier, it looks like you turned
> SERIAL_DEBUG_AUTOCONF on.  Does it actually run the loopback
> test at serial.c:3671 successfully?

Based on the messages, I think so. I can try to put some other messages in
to print in the success case.

dave

-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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Can any of the HP people comment on where the second serial port on a D310
lives? I've looked through the lasi docs and on page 81 it mentions to
look in the Primary IO Configuration Register, bit 4, to see if there are
two ports, but the location isn't listed on the memory map anywhere.

dave

-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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From: Michael S.Zick <mszick@pflash.com>
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Subject: [parisc-linux] pa-risc V0.9 on Model 720 (+ others)
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	parisc-linux@parisc-linux.org
To: Richard Hirst <rhirst@linuxcare.com>
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To All -

Ref: Kernel snap-shot of 0603 (presumed similar to V0.9 kernel)

Found:
File: linux/include/asm-parisc/io.h
Lines: 27 - 40
Do:
Comment out the #ifdef at (appox.) line 27 and matching #endif at (appox)=
 line 40

Situation (sitrep):
Box model 720 doesn't have PCI BA -
Box model 720 EISA BA was an option=20
(mine has one, I don't have a card, so I am not building that driver.)

Without either BA's defined - in/out Byte, Word, Long does not have
a prototype in mem.c (amoung other places) - the compiler guesses
(incorrectly) at what inb() and outb() mean.

Makes a difference.

More to follow as I work my way through:
serial.c
pc_keyb.c
lasi_82596.c
parport_gsc.c
scsi.c
sim700.c
inode.c
array.c
binfmt_som.c
binfmt_elf.c
and various other bits and bytes.

Hey - No one ever said this was a clean build, did they?

Mike

On Tue, 05 Jun 2001, you wrote:
> On Tue, Jun 05, 2001 at 09:14:05AM -0500, djweis@sjdjweis.com wrote:
> >=20
> > On Tue, 5 Jun 2001, Richard Hirst wrote:
> >=20
> > > So with the nfsroot you have the D310 booting, but with the 0.9 ISO
> > > it stops after serial driver initialisation.
> >=20
> > No, if I boot off the cd, I get IPL errors. When I netboot the kernel=
 off
> > the cd, it stopped at serial init. I don't think it actually stopped,=
 I
> > think it no longer printed but still booted.
>=20
> Ah, ok.  I'd misunderstood you.  So the kernel on the CD is no
> different from the one you built yourself.  That's a relief!
>=20
> Have you checked both serial ports, just in case the one the
> kernel finds isn't the one you are using?
>=20
> From the boot msgs you sent earlier, it looks like you turned
> SERIAL_DEBUG_AUTOCONF on.  Does it actually run the loopback
> test at serial.c:3671 successfully?
>=20
> Richard
>=20
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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Subject: [parisc-linux] Re: pa-risc V0.9 on Model 720 (+ others)
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On Tue, Jun 05, 2001 at 11:36:37AM -0500, Michael S. Zick wrote:
> Without either BA's defined - in/out Byte, Word, Long does not have
> a prototype in mem.c (amoung other places) - the compiler guesses
> (incorrectly) at what inb() and outb() mean.

That's a known-bad configuration.  You have to have some kind of PCI
or EISA controller configured in.

-- 
Revolutions do not require corporate support.




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From: Chuck Slivkoff <charles_slivkoff@hp.com>
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Subject: [parisc-linux] Forcing PA-Linux to swap / do_page_fault()
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Greetings all,

I've noticed a problem that I believe is might be related to the kernel
not being able to use swap space.  I've never seen swap utilization > 0
and suspect that something might be seriously wrong. Here's an example
of the kernel error:


do_page_fault() pid=8730 command='Xvfb' type=6 address=0x00000003

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 0049a1f8 00000000 00000013
r4-7     723cff78 00000000 00000000 00000000
r8-11    00000500 00000400 00000000 00000020
r12-15   00000000 00000000 00000000 00000400
r16-19   00000500 0058fd70 00000000 000057e4
r20-23   00000000 00000014 00000040 004c61f8
r24-27   faf00d58 faf00cd8 0000000e 004471f8
r28-31   0002bf20 00000000 faf00e48 00054f83
sr0-3    00000000 00000100 00000000 00000100
sr4-7    00000100 00000100 00000100 00000100

IASQ: 00000100 00000100 IAOQ: 00000003 00000007
 IIR: e85e02a1    ISR: 00000100  IOR: 005dc000
 ORIG_R28: 00000003


My system is a 712/60 with 128MB RAM.

Does anyone have a good example of test to force the system to use swap?

-chuck




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Subject: [parisc-linux] Re: pa-risc V0.9 on Model 720 (+ others)
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On Tue, 05 Jun 2001, Matthew Wilcox wrote:
> On Tue, Jun 05, 2001 at 11:36:37AM -0500, Michael S. Zick wrote:
> > Without either BA's defined - in/out Byte, Word, Long does not have
> > a prototype in mem.c (amoung other places) - the compiler guesses
> > (incorrectly) at what inb() and outb() mean.
>=20
> That's a known-bad configuration.  You have to have some kind of PCI
> or EISA controller configured in.

Only if you intend to never support non-PCI, non-EISA older boxes.

Regardless of your intent - proper combinations of CONFIG_xxxxx
are supposed to be handled by the (x)config step of the build process.
After all - that is what "configure" means (in English).

To do a clean job of this - a selection of "Box Model" (similar to "Proce=
ssor Type")
may have to be added to the configuration scripts.  With corresponding #i=
fdef/#ifndef
statements in the relavent code.

At the moment - I have tunnel vision - I am focused on getting a personal=
 copy
of parisc-linux to boot on my model 720 box.

The comments and findings I post to the mailing lists may be freely disre=
garded
by anyone not interested them.  Still, they will exist in the mail list a=
rchives so that
any developer working on a public version of this kernel can use them for=
 hints, leads
and other ideas.

Mike
>=20
> --=20
> Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] Forcing PA-Linux to swap / do_page_fault()
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On Tue, Jun 05, 2001 at 01:56:38PM -0400, Chuck Slivkoff wrote:
> I've noticed a problem that I believe is might be related to the kernel
> not being able to use swap space.  I've never seen swap utilization > 0
> and suspect that something might be seriously wrong. Here's an example
> of the kernel error:

Hmm... none of my systems are using swap either; I had noticed this before,
but never really thought much of it.  This has to be a moderately recent
breakage because I know jsm has tested swapping.

> Does anyone have a good example of test to force the system to use swap?

Sure.  malloc 256MB, then dirty each page.

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Re: Version 0.9 of PA-RISC Linux Released
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Cc: Andrew Shugg <andrew@neep.com.au>, parisc-linux@parisc-linux.org
To: "Michael S.Zick" <mszick@pflash.com>
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On Tue, Jun 05, 2001 at 07:24:31AM -0500, Michael S.Zick wrote:
> Great idea - both sites should CLEARLY cross-link their information pages.

if you have constructive suggestions for the website, please feel free to
post them.  I didn't like the original layout, and I think the redesign
made it harder to find information.  but i don't know how to make it
better, nor do i have time.

> I am using the kernel snap-shot of 06/03/2001 - in the hopes
> that it is close to what was used to build the kernels in V0.9 -
> but that is only a guess on my part

this is why i introduced the EXTRAVERSION.  it's -pa10, and that's still
head of the CVS tree.

> 2) - don't drop a built kernel into an image of even a pre-release
> CD until it compiles error (and warning) free.
> 
> Some of the problems I have found and fixed were clearly
> mentioned by the compiler.

let's see your patch then.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:17:57 2018
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From: Michael S.Zick <mszick@pflash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Version 0.9 of PA-RISC Linux Released
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To: Matthew Wilcox <matthew@wil.cx>
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On Tue, 05 Jun 2001, Matthew Wilcox wrote:
>=20
> let's see your patch then.
>=20
> --=20
> Revolutions do not require corporate support.

Corporations shouldn't require users to drive them
to do their best.

Read on, gang, read on - when I get a clean
compile and a kernel that boots on my model 720...

I'll ask someone where to send the diff's...

Until then (maybe never) I'll continue to post my
progress notes that seem to directly apply to
questions being asked by others on the mailing lists.

Mike




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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Version 0.9 of PA-RISC Linux Released
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Cc: Matthew Wilcox <matthew@wil.cx>, debian-hppa@lists.debian.org,
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To: "Michael S. Zick" <mszick@pflash.com>
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On Tue, Jun 05, 2001 at 02:16:05PM -0500, Michael S. Zick wrote:
> Corporations shouldn't require users to drive them
> to do their best.

So far i've heard nothing but talk from you.  i've been working on this
project for more than 2 years now, working for 3 different companies
during that time.  Sometimes I've been paid to work on it, sometimes
I haven't.  Sometimes I've worked on it entirely on my own time.  I want
to see something constructive from you before I'll accept your criticism.

> Read on, gang, read on - when I get a clean
> compile and a kernel that boots on my model 720...
> 
> I'll ask someone where to send the diff's...

Not the way it works.  Things will move on and you'll get left behind.
Send patches now and they'll (probably) get integrated.

-- 
Revolutions do not require corporate support.




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From: Chuck Slivkoff <charles_slivkoff@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Forcing PA-Linux to swap / do_page_fault()
Date: Tue, 05 Jun 2001 16:30:34 -0400
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Matthew Wilcox wrote:
> 
> On Tue, Jun 05, 2001 at 01:56:38PM -0400, Chuck Slivkoff wrote:
> > I've noticed a problem that I believe is might be related to the kernel
> > not being able to use swap space.  I've never seen swap utilization > 0
> > and suspect that something might be seriously wrong. Here's an example
> > of the kernel error:
> 
> Hmm... none of my systems are using swap either; I had noticed this
> before, but never really thought much of it.  This has to be a 
> moderately recent breakage because I know jsm has tested swapping.

I noticed similar behavior w/ the kernel from the 0.6 ISO, but it's been
behaving much better since upgrading to the 0.9 bits.




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems with 0.9 ISO Images from mkhppa1.esiee.fr
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Thomas Bogendoerfer wrote:
> I don't think so, J282 doesn't even have PCI. Right now I can't boot it,
> because I've disassembled my computer room, but if memory serves right
> serial is attached to either wax or lasi.

I just checked. You are right. No PCI and both wax and lasi export
a serial interface. I thought all J-class had PCI but that is clearly wrong.
Early B/C-class don't have PCI either.

> 
> > for that...but I know it's not on the 0.9 ISOs. Booting from a lifimage
> > (newer kernel plus Dino patch) might work better.
> 
> even without having Dino ?

No. It won't work better afaik.
Anyone with a C160 is able to boot/install?

sorry,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Michael S.Zick <mszick@pflash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Version 0.9 of PA-RISC Linux Released
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On Tue, 05 Jun 2001, Matthew Wilcox wrote:

> I've been working on this
> project for more than 2 years now, working for 3 different companies
> during that time. =20

I'll be glad to match my 4 decades of experience against your 2 years any=
time.
=20
> Not the way it works.=20
> Send patches now and they'll (probably) get integrated.

Perhaps that is not how it works in your world, but consider -

The only way to validate a change as a potential patch is:

1) start with a clean (error and warning free) build that
boots and runs on the machine of interest.

2) hack, change, modify, whatever

3) when done, make another clean build that boots and runs
on the machine of interest.

4) evaluate the effects of the change(s).

5) If successful - then you MIGHT have something worth
submitting as a POTENTIAL patch.

Exactly the same 5 steps your developers take before they
commit a change to CVS.

> So far i've heard nothing but talk from you. =20

That's right - until it is a clean build, boots and runs -
everything is talk and speculation.

>  Things will move on and you'll get left behind.

So what?

The only changes I make outside of the parisc specific
branch of the source tree are to bring the code in line
with 2.4.4 (stable).

The changes I make inside of the parisc specific branch
of the tree will be (someday) found by your own developers.

Just a matter of do you want to duplicate the time and=20
trouble of finding them yourself, or read about them in
the mail archives.

If you are serious about my suggestions being counter-productive,
I will gladly spend the time I am taking to write them for other purposes=
=2E

Mike
Mike




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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Version 0.9 of PA-RISC Linux Released
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Cc: Matthew Wilcox <matthew@wil.cx>, debian-hppa@lists.debian.org,
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On Tue, Jun 05, 2001 at 03:22:20PM -0500, Michael S. Zick wrote:
> The only way to validate a change as a potential patch is:
> 
> 1) start with a clean (error and warning free) build that
> boots and runs on the machine of interest.
> 
> 2) hack, change, modify, whatever
> 
> 3) when done, make another clean build that boots and runs
> on the machine of interest.
> 
> 4) evaluate the effects of the change(s).
> 
> 5) If successful - then you MIGHT have something worth
> submitting as a POTENTIAL patch.
> 
> Exactly the same 5 steps your developers take before they
> commit a change to CVS.

the people with CVS access are hardly `my' developers.  and the process
you describe is only one form of development.  it's not applicable in a lot
of cases.

> That's right - until it is a clean build, boots and runs -
> everything is talk and speculation.

No.  if you post a patch which moves things in the right direction,
that's more than talk.  it's something which can be tested.

> So what?
> 
> The only changes I make outside of the parisc specific
> branch of the source tree are to bring the code in line
> with 2.4.4 (stable).

erm... if you're doing that, I'll be very surprised if you build a
working system.  Changes are needed to the generic VM which need to be
forward-ported and changed in a few places.  This is work which I don't
feel capable of doing.

> The changes I make inside of the parisc specific branch
> of the tree will be (someday) found by your own developers.

That's great, I love people who do work, keep their changes secret and
then expect everyone else to find them because they're `obvious'.

> Just a matter of do you want to duplicate the time and 
> trouble of finding them yourself, or read about them in
> the mail archives.

I'd love you to post them.  I said so earlier.

> If you are serious about my suggestions being counter-productive,
> I will gladly spend the time I am taking to write them for other purposes.

If all you're going to do is patch your own tree and write snide flames
to this mailing list, then yes, I'd rather you worked on a different
project.  If you're going to work cooperatively, then please hang around.

-- 
Revolutions do not require corporate support.




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On Tue, Jun 05, 2001 at 02:57:31PM +0200, Thomas Bogendoerfer wrote:
> On Tue, Jun 05, 2001 at 12:23:14PM +0200, jheumann@fonts.de wrote:
> > Booting...
> > Boot IO Dependent Code (IODC) revision 1
> > 
> > IPL error: bad IPL checksum.
> > 
> > Error Reading IPL
> 
> did you use cdrecord -isosize to burn the CD ? I have the same problem and 
> that's the only option, which I probably haven't used, when burning the 
> 0.5 ISO. I'll try to burn a cd without using -isosize, when I get home
> this evening.

ok, without -isosize the CDs are working perfect. I've diffed the broken
CDs against the images and there are differences in the first sector.
I'm using cdrecord 1.8.1 just for the record.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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Xref: news.gmane.org gmane.linux.ports.parisc:11262

djweis@sjdjweis.com wrote:
> 
> Can any of the HP people comment on where the second serial port on a D310
> lives?

	http://216.208.98.4/view.php3?type=machine&name=D310

Says one is on WAX and the other on LASI.
I can't say for sure which is first or second.
Based on console output, one should be able to determine
which is which by comparing the upper bits of the MMIO address
to the address of LASI and WAX.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] Re: Version 0.9 of PA-RISC Linux Released
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Michael S.Zick said:
> I'll be glad to match my 4 decades of experience against your 2 years
> anytime.

Willy didn't say anything about his experience, but the time that that
he has put into this particular project.  Perhaps you meant to say you'd
like to put your 40 years of experience together with his two years of
work in order to help the project?  Sadly, that's probably stretching
your words well beyond the "benefit of the doubt".  =(

> If you are serious about my suggestions being counter-productive, I
> will gladly spend the time I am taking to write them for other purposes.

I don't know - or honestly care - who you are or which horse you rode in
on.  You're the first person I've seen to bring this attitude in to this
project and in my position as list-lurker and linux-hppa fiddler I'd be
perfectly happy if you were the last.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Version 0.9 of PA-RISC Linux Released
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Cc: mszick@pflash.com (Michael S. Zick),
	matthew@wil.cx (Matthew Wilcox), debian-hppa@lists.debian.org,
	parisc-linux@parisc-linux.org, parisc-linux@thepuffingroup.com
To: matthew@wil.cx (Matthew Wilcox)
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Xref: news.gmane.org gmane.linux.ports.parisc:11264

> On Tue, Jun 05, 2001 at 03:22:20PM -0500, Michael S. Zick wrote:
> > The only way to validate a change as a potential patch is:
> > 1) start with a clean (error and warning free) build that
> > boots and runs on the machine of interest.
> > 2) hack, change, modify, whatever
> > 3) when done, make another clean build that boots and runs
> > on the machine of interest.
> > 4) evaluate the effects of the change(s).
> > 5) If successful - then you MIGHT have something worth
> > submitting as a POTENTIAL patch.
> > Exactly the same 5 steps your developers take before they
> > commit a change to CVS.
> 
> the people with CVS access are hardly `my' developers.  and the process
> you describe is only one form of development.  it's not applicable in a lot
> of cases.

A lot of the Linux development occurs on much more of a 'directed chaos'
approach, and that's an approach gaining favour in software engineering 
circles too. If it looks roughly right you throw it in or run it past someone
with a good eye for code in that area and throw it in. If as is normally the
case the patch is fine it works very efficiently. When the patch turns out to
be wrong it is rare that there are multiple patches likely to cause the reported
symptoms.

Also you can run continual automated testing using tools like cerberus. Yes
my Software Engineering lecturer would never have approved - but it works.

Alan





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From: Michael S.Zick <mszick@pflash.com>
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Subject: Re: [parisc-linux] Re: Version 0.9 of PA-RISC Linux Released
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Xref: news.gmane.org gmane.linux.ports.parisc:11265

Fine by me.=20
I don't have to be told to goa away more than twice.

Mike

On Tue, 05 Jun 2001, Andrew Shugg wrote:
> Michael S.Zick said:
> > I'll be glad to match my 4 decades of experience against your 2 years
> > anytime.
>=20
> Willy didn't say anything about his experience, but the time that that
> he has put into this particular project.  Perhaps you meant to say you'=
d
> like to put your 40 years of experience together with his two years of
> work in order to help the project?  Sadly, that's probably stretching
> your words well beyond the "benefit of the doubt".  =3D(
>=20
> > If you are serious about my suggestions being counter-productive, I
> > will gladly spend the time I am taking to write them for other purpos=
es.
>=20
> I don't know - or honestly care - who you are or which horse you rode i=
n
> on.  You're the first person I've seen to bring this attitude in to thi=
s
> project and in my position as list-lurker and linux-hppa fiddler I'd be
> perfectly happy if you were the last.
>=20
> Andrew.
>=20
> --
> Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com=
=2Eau/
>=20
> "Just remember, Mr Fawlty, there's always someone worse off than yourse=
lf."
> "Is there?  Well I'd like to meet him.  I could do with a good laugh."
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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Michael S.Zick said:
> Fine by me. 
> I don't have to be told to goa away more than twice.
> 
> Mike

Ah, but no-one actually has told you to go away.  Look back on your four
decades of experience or your even longer life and reflect on all you've
learned in that time about how pride and professionalism are rarely seen
together.  (Again, pardon my presumption, but I assume you did learn!)

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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From: Jay Konrad <jkonrad@fonts.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Installing a C++ Compiler
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Hi guys!

I have installed PA Linux 0.9 on my HP 712. Unfortunately, there is no telnet server. But I got the sources, so I would like to compile it. Unfortunately, gcc tells 
me on installation that it depends on glibc6. When I try to install glibc6, it tells me it needs libdb2. If I try to install libdb2, it tells me it needs glibc6. I am at my 
wits end at what to do. Anybody out there who can help a beginner??

Many thanks,

Jay







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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Installing a C++ Compiler
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On Wed, Jun 06, 2001 at 11:54:12AM +0200, Jay Konrad wrote:
> Hi guys!
> 
> I have installed PA Linux 0.9 on my HP 712. Unfortunately, there is no telnet server. But I got the sources, so I would like to compile it. Unfortunately, gcc tells 
> me on installation that it depends on glibc6. When I try to install glibc6, it tells me it needs libdb2. If I try to install libdb2, it tells me it needs glibc6. I am at my 
> wits end at what to do. Anybody out there who can help a beginner??

telnetd exists in the debian archives.  If you have apt configured,
and are networked,  "apt-get install telnetd" should work for you.

My /etc/apt/sources.list looks like this:


deb http://beast:80/rel0.9/debian sid main
deb http://beast:80/rel0.9/more-packages/debian sid main

deb http://http.us.debian.org/debian/ unstable main non-free contrib
deb-src http://http.us.debian.org/debian/ unstable main non-free contrib
deb http://non-us.debian.org/debian-non-US unstable/non-US main contrib non-free
deb-src http://non-us.debian.org/debian-non-US unstable/non-US main contrib non-free


'beast' is my local server which is making the CD contents available
over http.  You want the last four lines, at least.

Then something like


apt-get update		# updates apt cache with available pkg details
apt-get install telnetd	# should "just work"


You can find telnetd_*_hppa.deb on a debian mirror under
/pub/mirrors/debian/pool/main/n/netkit-telnet if you just want to
grab a file, and then install with "dpkg -i telnetd....deb".

The pkgs that get installed initially are a little dated, and newer
ones are in more-packages on the CD.

BEWARE that when I installed e2fsprogs_1.20-1_hppa.deb from more-packages
the system wouldn't boot any more because e2fsck crashed.  I recovered
by reinstalling e2fsprogs_1.19-4_hppa.deb from the debian tree on the
CD.

You don't say how you are trying to install gcc, libdb2, etc, but
your problem can probably be solved either by apt-get which will
sort out the dependancies for you, or with dpkg -i, specifying multiple
.deb files are arguments.

Richard





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On Tue, 5 Jun 2001, Grant Grundler wrote:
> djweis@sjdjweis.com wrote:
> > 
> > Can any of the HP people comment on where the second serial port on a D310
> > lives?
> 
> 	http://216.208.98.4/view.php3?type=machine&name=D310
> 
> Says one is on WAX and the other on LASI.
> I can't say for sure which is first or second.
> Based on console output, one should be able to determine
> which is which by comparing the upper bits of the MMIO address
> to the address of LASI and WAX.

I was looking through the documentation section of the site and couldn't
find anything on wax. What other name would it be listed as? I did find
the lasi docs.

dave

-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: [parisc-linux] The A500 dump
Date: Wed, 06 Jun 2001 15:28:16 +0200
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This is a multi-part message in MIME format.
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Hi all,

	I just get a dump from our A500. After that, everything was pretty out
of service (even the lan console).
So, it could be interesting.
mkhppa1:~# uname -a
Linux mkhppa1 2.4.0 #1 Tue May 1 17:48:13 CEST 2001 parisc64 unknown

Richard advices me to install his kernel because I do not have the
System.map for the last one :-(

Hope that will help, Thomas
ESIEE Team
--------------6968D00A2A7FE1A08FD8EFA8
Content-Type: text/plain; charset=us-ascii;
 name="a500_crash"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="a500_crash"

skput:over: 000000001025259c:1440 put:-8 de
v:<NULL>kernel BUG at skbuff.c:93!

Dumping Stack from 00000000258ec000 to 00000000258ed8c0:
c000 00000000 00000000 00000000 00000140 00000000 00000001 00000000 102e6a40
c020 00000000 00000001 00000000 00000000 ffffffff 00000000 00000000 00000000
c040 00000000 00000000 00000000 00000000 00000000 4fa22d80 00000000 00000000
c060 ffffffff ffffffff 00000000 102e6800 00000000 4f228068 00000000 01e9d27b
c080 00000000 25448000 00000000 49eac000 00000000 4fa22d80 00000000 102e4480
c0a0 00000000 00000012 00000000 00000000 00000000 00800000 00000000 000053f8
c0c0 00000080 00000000 00000080 000053f8 00000000 00000000 00000000 4e934000
c0e0 00000000 4e934000 00000000 4d188000 00000000 25448000 00000000 49eac000
c100 00000000 258ec100 00000000 258ec100 00000000 00000000 00000000 103b0680
c120 00000000 258ec120 00000000 258ec120 00000000 258ec8c8 00000000 00000000
c140 00000000 00000000 00000000 06388cbf 00000000 00000000 00000000 00000000
c160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c180 00000000 000015b3 00000000 258ec000 00000000 1030c750 00000059 000002ed
c1a0 00000075 000001f1 00000000 01855d9e 00000000 00000067 00000000 00000605
c1c0 00000000 0000186b 00000000 00000188 00000000 00000000 00000000 00001e5c
c1e0 00000000 0000a03f 00000000 00000000 80000000 0000fffe 0000fffe 0000fffe
c200 0000fffe 0000fffe 0000fffe 0000fffe 0000fffe 00000001 0000fffe 00000000
c220 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c240 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c260 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c280 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c2a0 00000000 00000000 00000000 4f448180 ffffffff ffffffff ffffffff ffffffff
c2c0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
c2e0 00000000 00800000 00000000 05000000 00000000 00000000 ffffffff ffffffff
c300 ffffffff ffffffff ffffffff ffffffff 00000000 00003db1 00000000 00003db1
c320 00000000 00000400 00000000 00000400 ffffffff ffffffff ffffffff ffffffff
c340 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
c360 00006874 74706400 63746c00 00000000 00000000 00000000 00000000 00000000
c380 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c3a0 00000000 000af7bc 00000000 0002fd97 00000000 faf0ac40 00000000 faf08908
c3c0 00000000 faf00194 00000000 000b43c6 00000000 00000001 00000000 000b453e
c3e0 00000000 00091210 00000000 00094470 00000000 00094510 00000000 00000008
c400 00000000 00000000 00000000 00094750 00000000 00000000 00000000 00000000
c420 00000000 0007e808 00000000 00078440 00000000 4024f23c 00000000 00000004
c440 00000000 401dd8e4 00000000 faf00810 00000000 00000000 00000000 00000e7a
c460 00000000 000f81f0 00000000 00000003 00000000 000aefbc 00000000 00000000
c480 00000000 00102a48 00000000 faf00b00 00000000 401dd8ef 081fb800 00000000
c4a0 00000000 00000000 00000000 00000000 00000000 00000000 3fe99999 9999999a
c4c0 00000000 00000000 00000000 000003e8 3ff04902 00000000 00000000 00000802
c4e0 00000000 102ef9e8 00000000 10380000 00000000 10324570 00000000 1037cb88
c500 00000000 00000001 00000000 1016b208 00000000 10324570 00000000 10324570
c520 00000000 124fc000 00000000 4fa33080 00000000 10324570 00000000 102ef0b8
c540 00000000 10324570 00000000 00000028 00000005 9999999a 0000000c 4fa3b000
c560 00000000 0800000f 00000000 103ca390 00000000 10324570 00000000 4fa60480
c580 00000000 00000001 00000000 101551b0 ac3db1b5 6c8e04d8 00000000 00096e80
c5a0 00000000 00096e80 00000000 00000000 00000000 00096e80 00000000 00096e80
c5c0 00000000 00096e80 00000000 00096e80 00000000 00096e80 00000000 00096e80
c5e0 00000000 00096e80 00000000 0002c2d3 00000000 0002c2d7 00000000 4017a040
c600 00000000 258ec000 00000000 00000000 00000000 258ecfd0 00000000 10104514
c620 00000000 0000001c 00000000 0e601288 00000000 00096e80 00000000 00104064
c640 00000000 10388580 00000000 002f0000 00000000 4f7c8540 00000000 4efe1440
c660 00000000 4ec76d00 00000000 00000000 00000000 00000000 00000000 258ec670
c680 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c6a0 00000000 00000000 00000000 00000000 00000006 00000006 36d8eea4 ebf3e081
c6c0 06ff33f6 35e6c74e c680e11c 1fba8d46 cb03b120 310b7175 23f0f4af c1f5251a
c6e0 791ef872 d067fbd6 687b9065 8d186e7c 87da467b d0357bce 03c69ee3 59c2b281
c700 59c7026e b000276c 32b76b01 c7857db7 35bcf173 e8ab9b65 397bf3fc c27fa57b
c720 259b6ae4 cff5188e 19a7765b da604bf2 00000000 10105764 a2ec4f9e 0bd4e6fb
c740 00000000 000b43c6 00000000 faf00194 00000000 faf12bc8 00000000 faf10c80
c760 00000000 000b453e 00000000 00000001 00000000 000b43c6 00000000 faf00194
c780 00000000 faf12bc8 00000000 faf10c80 00000000 00094470 00000000 00094510
c7a0 00000000 00000008 00000000 00000000 00000000 10105dc0 00000000 00000000
c7c0 00000000 00000001 00000000 000b43c6 00000000 faf00194 00000000 000b457e
c7e0 00000000 faf00a80 00000000 39438720 00000000 39438728 00000000 00000000
c800 00000000 00000000 00000000 00078440 00000000 0007e808 00000000 00000000
c820 00000000 00000000 00000000 00094750 00000000 00000000 00000000 00000008
c840 00000000 00094510 00000000 00094470 00000000 00091210 00000000 000b453e
c860 00000000 00000001 00000000 000b43c6 00000000 faf00194 00000000 000b457e
c880 00000000 faf00780 00000000 000b43c6 000000e6 faf00194 00000000 00000000
c8a0 00000000 40254718 00000000 402548e6 00000000 10155e38 00000000 faf019a0
c8c0 00000000 00000001 00000000 00000000 00000000 4efe1440 00000000 258ec900
c8e0 00000000 00000001 00000000 00000000 00000000 00000000 00000000 00094470
c900 00000000 000f81f0 00000000 00000e7a 00000000 40255000 00000000 4e950440
c920 00000000 10324570 00000000 4fa22db0 00000000 1011eeac 00000000 00091210
c940 00000000 258ec000 00000000 00000000 00000000 10324570 00000000 10324570
c960 00000000 faf00790 00000000 10324570 00000000 00000023 00000000 00000004
c980 00000000 39438700 00000000 faf00810 00000000 00000008 00000000 00000000
c9a0 ffffffff fffffff4 00000000 258ec000 00000000 102362d8 00000000 00000008
c9c0 00000000 10324570 000053f8 0000fffe 0000fffe 00000000 00000000 00000000
c9e0 00000000 00000000 00000000 000f81f0 00000000 10324570 00000000 00000e7a
ca00 ffffffff ffffffea 00000000 10324570 00000000 103d01e0 00000000 10324570
ca20 00000000 39438000 00000000 10324570 00000000 1016d07c 00000000 00001000
ca40 00000000 258ec7c8 00000000 00000008 00000000 00000000 00000000 4e950440
ca60 00000000 4e950440 00000000 10324570 00000000 00000000 00000000 00001000
ca80 00000000 4fa22d80 00000000 0800000f 00000000 103ca1e0 00000000 10324570
caa0 00000000 4910a000 00000000 403c0000 00000000 10235ff4 ffffffff fffffffe
cac0 00000000 00000e7a 00000000 39ecafe8 00000000 10324570 00000000 00000000
cae0 00000000 4f6d69c0 00000000 000003c5 00000000 4efe9300 00000000 00000000
cb00 00000000 00000000 00000000 00000000 00000000 4f6d6ac0 00000000 4f796dc0
cb20 00000000 00000001 00000000 12422780 00000000 10272e6c 00000000 10324570
cb40 00000000 00000000 00000000 06337721 7fffffff ffffffff 00000000 00078440
cb60 00000000 0007e808 00000000 00000000 00000000 00000000 00000000 00094750
cb80 00000000 00000000 00000000 00000008 00000000 00094510 00000000 00094470
cba0 00000000 00091210 00000000 000b453e 00000000 258ec9c8 00000000 258ec8c8
cbc0 00000000 00000e7a 00000000 10324570 00000000 4efdf280 00000000 00000000
cbe0 00000000 00000001 00000000 00000003 00000000 00000001 00000000 000003c5
cc00 00000000 000003c4 00000000 4e7cf001 00000000 403c0000 00000000 10324570
cc20 00000000 00000000 00000000 258ecb30 00000000 102525cc 00000000 401dd8ab
cc40 00000000 10324570 00000000 4efdf3a8 ffffffff fffffff8 00000000 10324570
cc60 00000000 489618c0 00000000 40255000 00000000 102c44d8 00000000 102c44f0
cc80 00000000 0000005d 00000000 0000001f 00000000 4fa22d80 00000000 00000000
cca0 00000000 102c44f0 00000000 102c44d8 00000000 10239d40 00000000 4975fe19
ccc0 00000000 10324570 00000000 000f821f 00000000 000005a0 00000000 00000e4b
cce0 00000000 4efdf280 00000000 10324570 00000000 4efdf3a8 ffffffff fffffff8
cd00 00000000 4975fe48 00000000 10324570 00000000 24163000 00000000 10324570
cd20 00000000 10ccca80 00000000 00000001 00000000 10251da0 ac3db1b5 00000003
cd40 000000ff 080cff0f 00000000 00000000 00000000 1028e000 00000000 10324570
cd60 ffffffff fffffff8 00000000 4975fe48 00000000 258ecb48 00000000 00006470
cd80 00000000 4efdf280 00000000 00000e4b 00000000 000005a0 00000000 000f821f
cda0 00000000 10324570 00000000 000005a0 00000000 0000002f 00000000 00000000
cdc0 00000000 00000000 00000000 00000000 00000000 258ec910 00000000 00000000
cde0 00000000 4f228000 00000000 1031a4f0 00000000 00000001 ffffffff fea5c8d9
ce00 ffffffff fffce217 00000000 0012a000 00000000 4ad03566 00000000 10324570
ce20 00000000 0000001b 00000000 258ecd30 00000000 258ed080 00000000 00003fff
ce40 08000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ce60 40c37bf7 47d06e6d 00000001 00000001 00000000 124fc000 3fe6a09e 667f3bcd
ce80 00000000 00000802 00000000 102ef9e8 00000000 10380000 00000000 10324570
cea0 00000000 1037cb88 00000000 00000001 00000000 1016b208 00000000 10324570
cec0 00000000 10324570 00000000 124fc000 00000000 4fa33080 00000000 10324570
cee0 00000000 102ef0b8 00000000 10324570 00000000 00000000 00000000 00000000
cf00 b38cf9b1 4fa3b000 00000000 0800000f 00000000 103ca390 00000000 10324570
cf20 00000000 4fa60480 00000000 00000001 00000000 101551b0 ac3db1b5 00000002
cf40 00000000 00091300 00000000 00096e80 00000000 00000000 00000000 00096e80
cf60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cf80 00000000 00000000 00000000 00000000 00000000 1028dc68 00000000 1028dc64
cfa0 00000000 4017a040 00000000 00000000 00000000 101102b4 ac3db1b5 00000002
cfc0 00000000 00000010 00000000 00000003 00000000 0f401222 00000000 00096e80
cfe0 00000000 0012a000 00000000 00000000 00000000 00000000 00000000 00000000
d000 00000000 00000000 00000000 00000000 00000000 1012c5c8 00000000 1012c5cc
d020 00000000 4017a040 00000000 00000000 00000000 1028f0a0 00000000 00000000
d040 00000000 4efdf280 00000003 00000009 00000000 2b610000 00000000 00000000
d060 00000000 000000d0 00000000 0000000a 00000000 10105500 ffffffff ffffffff
d080 00000000 10324570 00000000 000f821f 00000000 000005a0 00000000 00000e4b
d0a0 00000000 4efdf280 00000000 00006470 00000000 258ecb48 00000000 4975fe48
d0c0 ffffffff fffffff8 00000000 10324570 00000000 10324570 00000000 0000000f
d0e0 00000000 258ecb40 00000000 4fa68ac0 00000000 1012fba8 00000000 10324570
d100 00000000 000f821f 00000000 000005a0 00000000 00000e4b 00000000 0000000e
d120 00000000 00000001 00000000 1038f100 00000000 0000000b 00000000 00000001
d140 00000000 1038f120 00000000 00000000 00000000 48ee22c0 00000000 12568000
d160 00000000 10324570 00000000 00000020 00000000 10109930 00000000 00000001
d180 00000000 00000001 00000000 10324570 00000000 00000001 00000000 00000041
d1a0 00000000 1038acc3 00000000 10324570 00000000 00000008 00000000 00000001
d1c0 00000000 1038f120 00000000 4fa22d80 00000000 0000000f 00000000 4910a240
d1e0 00000000 000000e0 00000000 12568200 00000000 10109790 00000000 00000000
d200 00000000 00000041 00000000 10324570 00000000 10324570 00000000 12568000
d220 00000000 4e5da380 00000000 00000000 00000000 102439ac 00000000 00000001
d240 00000000 10324570 00000000 4f0bf880 00000000 10324570 00000000 48ee22c0
d260 00000000 12568000 00000000 4fa68ac0 00000000 10112a70 00000000 00001d50
d280 00000000 258ecd40 00000000 10324570 00000000 124f7400 00000000 102ce0d8
d2a0 00000000 000005a0 00000000 4efdf280 00000000 10324570 00000000 00000000
d2c0 00000000 00096e80 00000000 0012a000 00000000 10324570 00000000 0000000f
d2e0 00000000 258ecd40 00000000 12568200 00000000 10109790 00000000 0000001e
d300 00000000 258ec910 00000000 00000000 00000000 258ecd40 00000000 00000000
d320 00000000 0000002f 00000000 000005a0 00000000 258ecd40 00000000 00000002
d340 40000000 00000000 00000000 102ceca8 00000000 10324570 40000000 00000000
d360 00000000 258ecd40 00000000 00000080 00000000 10324570 00000000 1257a000
d380 00000000 00000001 00000000 10324570 00000000 00000000 00000000 10324570
d3a0 00000000 258ec000 00000000 258ec000 00000000 10324570 00000000 258ecd40
d3c0 00000000 4fa22db0 00000000 4fa22d80 00000000 0000000f 00000000 4ef7a1c0
d3e0 00000000 258ecdc0 00000000 00000080 00000000 101d4524 00000000 1257a000
d400 00000000 00000000 00000000 000000a8 00000000 00000080 00000000 12568000
d420 ffffffff f0670040 00000000 10324570 00000000 258ecd40 00000000 00000080
d440 00000000 10324570 00000000 12568200 00000000 1028dc4c 00000000 1030b470
d460 00000000 1030b470 00000000 12568200 00000000 10110394 00000000 00000000
d480 00000000 00000080 00000000 10324570 00000000 10324570 00000000 00000000
d4a0 00000000 12536000 00000000 10324570 00000000 00000000 00000000 00000001
d4c0 00000000 10324570 00000000 258ec000 00000000 00000346 00000000 4cf13000
d4e0 00000000 1235c980 00000000 4fa68ac0 00000000 101d4188 00000000 1257a000
d500 00000000 00000042 00000000 12568200 00000000 10324570 00000000 00460320
d520 00000000 4e5da380 00000000 10324570 00000000 00000000 00000000 00000001
d540 00000000 10324570 00000000 258ec000 00000000 00000332 00000000 10324570
d560 00000000 1235c980 00000000 12568200 00000000 1023cd90 ac3db1b5 00000003
d580 000000ff 0804ff0e 00000000 103aaf10 00000000 101d4188 00000000 00000000
d5a0 00000000 00000002 00000000 00000054 00000000 10324570 00000000 00000050
d5c0 00000000 00000005 00000000 10324570 00000000 12568000 00000000 0000001f
d5e0 00000000 00000000 00000000 00000000 00000000 00000019 00000000 00000000
d600 00000000 00002002 00000000 000000c0 00000000 00000010 00000000 00000072
d620 00000000 00000000 00000000 0800000e 00000000 00000000 00000000 1032ed70
d640 00000100 40000100 00000000 49abd5c0 00000000 00000054 00000000 10324570
d660 00000000 3c105410 00000000 258ed4f0 00000000 258ed8c0 00000000 00003fff
d680 08000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d6a0 40c37bf7 47d06e6d 00000001 00000001 00000000 124fc000 3fe6a09e 667f3bcd
d6c0 00000000 00000802 00000000 102ef9e8 00000000 10380000 00000000 10324570
d6e0 00000000 1037cb88 00000000 00000001 00000000 1016b208 00000000 10324570
d700 00000000 10324570 00000000 124fc000 00000000 4fa33080 00000000 10324570
d720 00000000 102ef0b8 00000000 10324570 00000000 00000000 00000000 00000000
d740 b38cf9b1 4fa3b000 00000000 0800000f 00000000 103ca390 00000000 10324570
d760 00000000 4fa60480 00000000 00000001 00000000 101551b0 ac3db1b5 00000002
d780 00000000 00091300 00000000 00096e80 00000000 00000000 00000000 00000000
d7a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
d7c0 00000000 00000000 00000000 00000000 00000000 10239ed8 00000000 10239edc
d7e0 00000000 4017a040 00000000 00000000 00000000 10149f94 00000000 10324570
d800 00000000 00000000 00000000 00000001 00000000 0e8112d0 00000000 00000000
d820 00000000 00000008 00000000 12568200 00000000 1012fe50 00000000 00001920
d840 00000000 00000000 00000000 01e5ab8a 00000000 4efdeaa8 00000000 00641bb2
d860 00000000 12568240 00000000 12568238 00000000 10140a84 00000000 1257a000
d880 00000000 00000000 00000000 10324570 00000000 1247bb00 00000000 00000000
d8a0 00000000 12568000 00000000 10324570 00000000 10105764 00000000 0000001f

Kernel Fault: Code=26 regs=00000000258ed580 (Addr=0000000000000008)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110
r0-3     0000000000000000 00000000103aaf10 00000000101d4188 0000000000000000
r4-7     0000000000000002 0000000000000054 0000000010324570 0000000000000050
r8-11    0000000000000005 0000000010324570 0000000012568000 000000000000001f
r12-15   0000000000000000 0000000000000000 0000000000000019 0000000000000000
r16-19   0000000000002002 00000000000000c0 0000000000000010 0000000000000072
r20-23   0000000000000000 000000000800000e 0000000000000000 000000001032ed70
r24-27   0000010040000100 0000000049abd5c0 0000000000000054 0000000010324570
r28-31   000000003c105410 00000000258ed4f0 00000000258ed8c0 0000000000003fff
sr0-3    0000000000091300 0000000000096e80 0000000000000000 0000000000000000
sr4-7    0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010239ed8 0000000010239edc
 IIR: 0e8112d0    ISR: 0000000000000000  IOR: 0000000000000008
ORIG_R28: 0000000010149f94


--------------6968D00A2A7FE1A08FD8EFA8--





From - Thu Nov 08 21:17:59 2018
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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] more ldcw alignment problems?
Date: Wed, 6 Jun 2001 14:37:46 +0100
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715/old, fresh install, glibc 2.2.3 based, trying to build the
kernel, make hung.  Don't know if a rebuild of make will help
or not, as the ldcw is for a location on the stack.

apollo:/usr/src/linux# /share/gdb/gdb2 /usr/bin/make
GNU gdb 5.0
Copyright 2001 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "hppa-linux"...(no debugging symbols found)...
(gdb) attach 1223
Attaching to program: /usr/bin/make, Pid 1223
Reading symbols from /lib/librt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/librt.so.1
Reading symbols from /lib/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/libpthread.so.0...(no debugging symbols found)...
done.
Loaded symbols for /lib/libpthread.so.0
Reading symbols from /lib/ld.so.1...done.
Loaded symbols for /lib/ld.so.1
0x4019bf40 in _end_init () from /lib/libpthread.so.0
(gdb) x/10i 0x4019bf30
0x4019bf30 <_end_init+152>:     ldw 684(sr0,r1),r21
0x4019bf34 <_end_init+156>:     bv r0(r21)
0x4019bf38 <_end_init+160>:     ldw 688(sr0,r1),r19
0x4019bf3c <_end_init+164>:     addil -800,r19,%r1
0x4019bf40 <_end_init+168>:     ldw 46c(sr0,r1),r21
0x4019bf44 <_end_init+172>:     bv r0(r21)
0x4019bf48 <_end_init+176>:     ldw 470(sr0,r1),r19
0x4019bf4c <_end_init+180>:     addil -800,r19,%r1
0x4019bf50 <_end_init+184>:     ldw 73c(sr0,r1),r21
0x4019bf54 <_end_init+188>:     bv r0(r21)
(gdb) stepi
0x40116614 in sched_yield () from /lib/libc.so.6
(gdb) 
0x40116618 in sched_yield () from /lib/libc.so.6
(gdb) 
0x40116644 in sched_yield () from /lib/libc.so.6
(gdb) 
0x40116648 in sched_yield () from /lib/libc.so.6
(gdb) 
0x4011664c in sched_yield () from /lib/libc.so.6
(gdb) 
0x401a1f48 in __pthread_acquire () from /lib/libpthread.so.0
(gdb) x/10i 0x401a1f30
0x401a1f30 <__pthread_acquire+92>:      ldo 481(r20),r6
0x401a1f34 <__pthread_acquire+96>:      ldo -78(sp),r26
0x401a1f38 <__pthread_acquire+100>:
    cmpb,< r7,r4,0x401a1f60 <__pthread_acquire+140>
0x401a1f3c <__pthread_acquire+104>:     ldi 0,r25
0x401a1f40 <__pthread_acquire+108>:     b,l 0x4019bf3c <_end_init+164>,rp
0x401a1f44 <__pthread_acquire+112>:     ldo 1(r4),r4
0x401a1f48 <__pthread_acquire+116>:     copy r5,r19
0x401a1f4c <__pthread_acquire+120>:     ldcw  0(sr0,r3),r20
0x401a1f50 <__pthread_acquire+124>:
    cmpib,<> 0,r20,0x401a1f10 <__pthread_acquire+60>
0x401a1f54 <__pthread_acquire+128>:     ldw -94(sr0,sp),rp
(gdb) stepi
0x401a1f4c in __pthread_acquire () from /lib/libpthread.so.0
(gdb) i r
     flags: 0                       pcsqt: 1ac                
        r1: fffff000                 eiem: 0                  
        rp: 401a1f4b                  iir: c6011d4            
        r3: faf03008                  isr: 1ac                
        r4: 1                         ior: faf028c8           
        r5: 401bfdb0                 ipsw: 4000b              
        r6: 1e8481                   cr31: 0                  
        r7: 31                        sr4: 1ac                
        r8: faf027a0                  sr0: c                  
        r9: 4019123c                  sr1: c                  
       r10: 3ffb8                     sr2: 0                  
       r11: faf02810                  sr3: 1ac                
       r12: 46                        sr5: 1ac                
       r13: 3ffb8                     sr6: 1ac                
       r14: 2c000                     sr7: 1ac                
       r15: 5c                       rcnt: 0                  
       r16: faf027a0                ptid1: 0                  
       r17: 407b8                   ptid2: 0                  
       r18: 2c000                     ccr: 0                  
       r19: 401bfdb0                ptid3: 0                  
       r20: 9e                      ptid4: 0                  
       r21: 4011660c                 cr24: 0                  
       r22: 401bd040                 cr25: 0                  
       r23: faf02d40                 cr26: 0                  
       r24: faf02810                 cr27: 9e                 
       r25: 0                        cr28: 0                  
       r26: faf03010                 cr29: 0                  
        dp: 3ffb8                    cr30: 12fc0000           
      ret0: 0                        fpsr: 0                  
      ret1: 0                        fpe1: 0                  
        sp: faf03088                 fpe2: 0                  
       r31: 40116617                 fpe3: 0                  
       sar: 1e                       fpe4: 0                  
     pcoqh: 401a1f4c                 fpe5: 0                  
     pcsqh: 1ac                      fpe6: 0                  
     pcoqt: 401a1f50                 fpe7: 0                  
(gdb) bt
#0  0x401a1f4c in __pthread_acquire () from /lib/libpthread.so.0
#1  0x401a1a18 in __pthread_lock () from /lib/libpthread.so.0
#2  0x4019ec50 in pthread_mutex_lock () from /lib/libpthread.so.0
#3  0x401a10ec in flockfile () from /lib/libpthread.so.0
#4  0x400af6bc in vfprintf () from /lib/libc.so.6
#5  0x400c5314 in vsprintf () from /lib/libc.so.6
#6  0x400b43d8 in sprintf () from /lib/libc.so.6
#7  0x00028678 in error ()
#8  0x0001c72c in main ()
Cannot access memory at address 0x6368202c
(gdb) 

apollo:/home/richard# cat /proc/1223/maps 
00010000-00030000 r-xp 00000000 08:03 57336      /usr/bin/make
0003f000-00041000 rwxp 0001f000 08:03 57336      /usr/bin/make
00041000-00048000 rwxp 00000000 00:00 0
40000000-4001a000 rwxp 00000000 08:03 14292      /lib/ld-2.2.3.so
4001a000-4001b000 rw-p 00000000 00:00 0
40029000-4002a000 rwxp 00019000 08:03 14292      /lib/ld-2.2.3.so
4002a000-4002b000 rwxp 00000000 00:00 0
4002b000-40033000 r-xp 00000000 08:03 14320      /lib/librt-2.2.3.so
40033000-40042000 ---p 00008000 08:03 14320      /lib/librt-2.2.3.so
40042000-40043000 rwxp 00007000 08:03 14320      /lib/librt-2.2.3.so
40043000-4004d000 rwxp 00000000 00:00 0
4004d000-4017a000 r-xp 00000000 08:03 14299      /lib/libc-2.2.3.so
4017a000-40189000 ---p 0012d000 08:03 14299      /lib/libc-2.2.3.so
40189000-40194000 rwxp 0012c000 08:03 14299      /lib/libc-2.2.3.so
40194000-40197000 rwxp 00000000 00:00 0
40197000-401a5000 r-xp 00000000 08:03 14343      /lib/libpthread-0.9.so
401a5000-401b4000 ---p 0000e000 08:03 14343      /lib/libpthread-0.9.so
401b4000-401c0000 rwxp 0000d000 08:03 14343      /lib/libpthread-0.9.so
401c0000-401c1000 rwxp 00000000 00:00 0
faf00000-faf04000 rwxp 00000000 00:00 0


apollo:/home/richard# dpkg -l libc6 make
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name          Version          Description
+++-=============-================-=======================================
ii  libc6         2.2.3-2.0.0.2    GNU C Library: Shared libraries and Timezone data
ii  make          3.79.1-6.0.1     The GNU version of the "make" utility.


Richard





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Subject: [parisc-linux] Re: The A500 dump
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Xref: news.gmane.org gmane.linux.ports.parisc:11272

Thomas Marteau wrote:
> 	I just get a dump from our A500. After that, everything was pretty out
> of service (even the lan console).
...

> skput:over: 000000001025259c:1440 put:-8 de
> v:<NULL>kernel BUG at skbuff.c:93!

I've seen this recently - past month or so.
Could you check kernel bugs and/or parisc-linux mail  archive for the same
skbuff.c output? I wasn't able to track this down all the way either.
If I didn't submit a bug for it, I'll see if I can dig up the info and
submit one.

....
> IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010239ed8 0000000010239e
>   dc
>  IIR: 0e8112d0    ISR: 0000000000000000  IOR: 0000000000000008
> ORIG_R28: 0000000010149f94


For starters, you really want to know what IAOQ and GR02 point at.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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djweis@sjdjweis.com wrote:
> I was looking through the documentation section of the site and couldn't
> find anything on wax. What other name would it be listed as? I did find
> the lasi docs.

I don't think WAX docs were released. Please just post any questions you
have hear. A few people do have the docs under NDA and have in the recent
past offered to answer questions about WAX/EISA.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: [parisc-linux] [aj@suse.de: Re: Remove multiline asm statements]
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I don't know the answer to this.  Anyone?

----- Forwarded message from Andreas Jaeger <aj@suse.de> -----

Delivered-To: willy@ldl.fc.hp.com
Mail-Copies-To: never
To: willy@ldl.fc.hp.com (Matthew Wilcox)
Cc: libc-alpha@sources.redhat.com
Subject: Re: Remove multiline asm statements
From: Andreas Jaeger <aj@suse.de>
Date: 06 Jun 2001 13:52:58 +0200
In-Reply-To: <20010605235813.A27862@ldl.fc.hp.com> (willy@ldl.fc.hp.com's message of "Tue, 5 Jun 2001 23:58:13 -0600")
User-Agent: Gnus/5.090004 (Oort Gnus v0.04) XEmacs/21.4 (Academic Rigor)

willy@ldl.fc.hp.com (Matthew Wilcox) writes:

> 2001-06-05  Matthew Wilcox  <willy@ldl.fc.hp.com>
> 
> 	* sysdeps/hppa/dl-machine.h: Reformat asm statements to remove new
> 	  gcc warning about multi-line strings.
> 
> diff -urNx CVS glibc-223/sysdeps/hppa/dl-machine.h glibc-merge/sysdeps/hppa/dl-machine.h
> --- glibc-223/sysdeps/hppa/dl-machine.h	Fri Apr 27 14:31:02 2001
>+++ glibc-merge/sysdeps/hppa/dl-machine.h	Mon May  7 15:25:44 2001
> @@ -75,11 +82,11 @@
>  
>  #if 0
>    /* Use this method if GOT address not yet set up.  */

Can we remove the #if 0 code?

I've committed your patch,
Andreas
-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de
    http://www.suse.de/~aj

----- End forwarded message -----

-- 
It's always legal to use Linux (TM) systems
http://www.gnu.org/philosophy/why-free.html




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Subject: Re: [parisc-linux] Problems with 0.9 ISO Images from mkhppa1.esiee.fr
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On Tue, 5 Jun 2001, Grant Grundler wrote:

> > > for that...but I know it's not on the 0.9 ISOs. Booting from a lifima=
ge
> > > (newer kernel plus Dino patch) might work better.
> >
> > even without having Dino ?
>
> No. It won't work better afaik.
> Anyone with a C160 is able to boot/install?
>

I have one C160. What should I try?=3D)


- Pasi K=E4rkk=E4inen

                                   ^
                                .     .
                                 Linux
                              /    -    \
                             Choice.of.the
                           .Next.Generation.





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From: E Frank Ball <frankb@efball.com>
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Subject: [parisc-linux] dselect problems
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I have a 712/80 and a graphics monitor (HP A1097C).  I got the base
system running from the palinux-0.9-32sti.iso CD.

I then tried to run "dpkg-reconfigure base-config".  It got to where it
is supposed to install the packages and died with a message:  failed
running script /usr/sbin/dpkg-preconfigure --apt || true
apt-utils is not installed.

I got apt-utils to install with "apt-get install apt-utils", but now I
can't get anything else to install either with dselect or apt-get.  I
get errors about "couldn't stat source package list cdrom...
- stat (2 no such file or directory).

"which stat" shows nothing.  I don't see a stat package either.
This is my first experience with Debian.

Any clues?, Thanks.

-- 

   E Frank Ball                efball@efball.com
   work: (707) 794-4168        home: (707) 538-3693 




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On Wed, Jun 06, 2001 at 02:02:12PM -0700, E Frank Ball wrote:
} 
} I have a 712/80 and a graphics monitor (HP A1097C).  I got the base
} system running from the palinux-0.9-32sti.iso CD.

It had rebooted ok a couple of times, but now it get to starting cron,
then register dumps with a kernel fault.

-- 

   E Frank Ball                efball@efball.com




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Hello.

I have an HP Apollo 735/99 workstation with 112MB RAM and a 2GB HD.  The 
external SCSI CDROM is a bit old, but it's Sony from Sun.  I burned the 
32-bit graphical iso this afternoon and it booted into the 2.4.0-pa10 
kernel.   After it's done searching for devices (it finds 13 of them), it 
prints out:

--snip
CPU(s): 1 x PA7100 (PCX-T) at 99.000000 MHz
Kernel command line: HOME=/ TERM=linux root=/dev/ram console=tty0 sti=0 
sti_font=VGA8x16
Console: colour dummy device 80x25
snip--

and then hangs.  Could this be a bad iso image? Or is this a known issue? 
Any help would be greatly appreciated (as is all the effort already done by 
the developers of the parisc port).

Thanks-

Mike Werneke
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com





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Alan Modra <amodra@bigpond.net.au> writes:

>> > diff -urNx CVS glibc-223/sysdeps/hppa/dl-machine.h glibc-merge/sysdeps/hppa/dl-machine.h
>> > --- glibc-223/sysdeps/hppa/dl-machine.h	Fri Apr 27 14:31:02 2001
>> >+++ glibc-merge/sysdeps/hppa/dl-machine.h	Mon May  7 15:25:44 2001
>> > @@ -75,11 +82,11 @@
>> >  
>> >  #if 0
>> >    /* Use this method if GOT address not yet set up.  */
>> 
>> Can we remove the #if 0 code?
> 
> Yes.

Shall I just commit the obvious patch?

Andreas
-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de
    http://www.suse.de/~aj




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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] Apollo 735/99 hangs after booting from CDROM
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Mike,

Do you have a serial terminal?  Or just a null modem cable and a
"borrowed" Windows PC, perhaps?  You could convert the ISO into the
serial-boot one using the sector0 file from the 0.9 release directory
and see if you can boot the box with your serial terminal or null modem
cable to a terminal emulator program on another workstation.

An easy way to test the original ISO image from which you burned the CD
is to mount the .iso file under Linux (any architecture) as a loopback
iso9660 filesystem.  There are also published checksums to compare
against the .iso file.  You can also check the md5sums of the kernel
images on your burnt CD against those within the mounted .iso file.

(Sorry I cannot be more helpful but I have not yet got the 0.9 iso file
burnt onto a CD yet.)

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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> > diff -urNx CVS glibc-223/sysdeps/hppa/dl-machine.h glibc-merge/sysdeps/hppa/dl-machine.h
> > --- glibc-223/sysdeps/hppa/dl-machine.h	Fri Apr 27 14:31:02 2001
> >+++ glibc-merge/sysdeps/hppa/dl-machine.h	Mon May  7 15:25:44 2001
> > @@ -75,11 +82,11 @@
> >  
> >  #if 0
> >    /* Use this method if GOT address not yet set up.  */
> 
> Can we remove the #if 0 code?

Yes.





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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] A detailed support list
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Hi PA/Linux guys,

	We put on line a list that sums up for all HP boxes the status of
PA/linux. If you have any comment or if you have any good news to add,
please mail us. We really want to keep this list up-to-date!

http://mkhppa1.esiee.fr/en/list.html

Thanks for reading, Thomas
ESIEE Team




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From: E Frank Ball <frankb@efball.com>
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Subject: Re: [parisc-linux] A detailed support list
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On Thu, Jun 07, 2001 at 11:24:11PM +0200, Thomas Marteau wrote:
} Hi PA/Linux guys,
} 
} 	We put on line a list that sums up for all HP boxes the status of
} PA/linux. If you have any comment or if you have any good news to add,
} please mail us. We really want to keep this list up-to-date!
} 
} http://mkhppa1.esiee.fr/en/list.html

Nobody has mentioned the 745s yet?  745i A2638B 50MHz.
We have a boatload of them around here.

-- 

   E Frank Ball                efball@efball.com




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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: [parisc-linux] Apollo 735/99 hangs after booting from CDROM
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On Thu, Jun 07, 2001 at 03:51:22AM -0000, Mike Werneke wrote:
> --snip
> CPU(s): 1 x PA7100 (PCX-T) at 99.000000 MHz
> Kernel command line: HOME=/ TERM=linux root=/dev/ram console=tty0 sti=0 
> sti_font=VGA8x16
> Console: colour dummy device 80x25
> snip--
> 
> and then hangs.  Could this be a bad iso image? Or is this a known issue? 

no, you are running the sti console kernel on a not supported frame buffer.
Use the 32serial image.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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Subject: [parisc-linux] Installation of palinux-0.9-32serial.iso
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-----Original Message-----
From: parisc-linux-announce-admin@lists.parisc-linux.org
[mailto:parisc-linux-announce-admin@lists.parisc-linux.org]
Sent: Thursday, June 07, 2001 6:20 PM
To: yehoshua_kimhi@hp.com
Subject: parisc-linux-announce request rejected


Your request to the parisc-linux-announce mailing list:




Hi there,

I am trying to install the palinux-0.9-32serial.iso 715/G machine with
serial console.
The machine boot from the CD but at the stage of the packages installation
it fail 
It claim that the packages are corrupted.
I tried to use the shell and mount the file system /dev/sda3. Then I copied
the whole CDROM to this file system.
Then I tried to install the base from this mountable file system.
It fail on the first package claiming that it can't download 'adduser'
package.
I don't have any other linux machine around so I can't use the NFSROOT
option (I mean follows the NFS-root-howto and compilation of new kernel with
the IP of NFS server etc..)
I do have around hp-ux machines, Is there a way to compile kernels on hp-ux?
Is there a way to continue from this stage??
Maybe install in some way the NFS and then mount file system which contain a
tarball of nfsroot??
Any other suggestion workarounds etc.. will be most helpful.

Regards,

shuki
**********************************************
Yehoshua Kimhi
ERC
Hewlett-Packard Israel
Email: yehoshua_kimhi@hp.com Telnet: 7810-527
Tel.: +972-3-5380527 Fax: +972-3-5380515 
**********************************************






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On Wed, Jun 06, 2001 at 02:02:12PM -0700, E Frank Ball wrote:
> 
> I have a 712/80 and a graphics monitor (HP A1097C).  I got the base
> system running from the palinux-0.9-32sti.iso CD.
> 
> I then tried to run "dpkg-reconfigure base-config".  It got to where it
> is supposed to install the packages and died with a message:  failed
> running script /usr/sbin/dpkg-preconfigure --apt || true
> apt-utils is not installed.

apt-utils isn't installed, true, but it isn't installed for anyone
else at this stage either.  Don't know why you see this problem.

> I got apt-utils to install with "apt-get install apt-utils", but now I
> can't get anything else to install either with dselect or apt-get.  I
> get errors about "couldn't stat source package list cdrom...
> - stat (2 no such file or directory).

Sounds like the CDROM is not mounted, or not mounted where
/etc/apt/sources.list says it is.  I have

deb http://beast:80/rel0.9/debian sid main
deb http://beast:80/rel0.9/more-packages/debian sid main

in my sources.list, but that is because I installed from http.  I don't
have an entry for CDROM source atm, sorry.

If you updated apt (dpkg -l apt) to 0.5.3, you may have to update its
pkg list with "apt-get update".

Perhaps someone with a CD based install could post their sources.list
as an example?

> "which stat" shows nothing.  I don't see a stat package either.
> This is my first experience with Debian.

"stat" is probably referring to the system call stat() having failed.
Basically it is saying that some file it wants to access doesn't exist.

Richard





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To: E Frank Ball <frankb@efball.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11287

On Wed, Jun 06, 2001 at 02:18:07PM -0700, E Frank Ball wrote:
> On Wed, Jun 06, 2001 at 02:02:12PM -0700, E Frank Ball wrote:
> } 
> } I have a 712/80 and a graphics monitor (HP A1097C).  I got the base
> } system running from the palinux-0.9-32sti.iso CD.
> 
> It had rebooted ok a couple of times, but now it get to starting cron,
> then register dumps with a kernel fault.

As mentioned in the errata <http://parisc-linux.org/release-0.9/errata.html>,
sti installs have a tendency to crash on reboot at the moment.  If this is a
repeatable problem, I'd be interested in the register dump.

Richard





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Subject: Re: [parisc-linux] Installation of palinux-0.9-32serial.iso
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To: "KIMHI,YEHOSHUA (HP-Israel,ex1)" <yehoshua_kimhi@hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11288

On Fri, Jun 08, 2001 at 01:14:43AM +0200, KIMHI,YEHOSHUA (HP-Israel,ex1) wrote:
> I am trying to install the palinux-0.9-32serial.iso 715/G machine with
> serial console.
> The machine boot from the CD but at the stage of the packages installation
> it fail 
> It claim that the packages are corrupted.
> I tried to use the shell and mount the file system /dev/sda3. Then I copied
> the whole CDROM to this file system.
> Then I tried to install the base from this mountable file system.
> It fail on the first package claiming that it can't download 'adduser'
> package.
> I don't have any other linux machine around so I can't use the NFSROOT
> option (I mean follows the NFS-root-howto and compilation of new kernel with
> the IP of NFS server etc..)
> I do have around hp-ux machines, Is there a way to compile kernels on hp-ux?
> Is there a way to continue from this stage??
> Maybe install in some way the NFS and then mount file system which contain a
> tarball of nfsroot??
> Any other suggestion workarounds etc.. will be most helpful.

Don't know what your problem is, it seems you have installed the
kernel and modules from CD (or local disk) without problems, but
have trouble with the base system files.  Failing on adduser can
often mean a problem with the Packages file.

Have you rechecked your CD to make sure the md5sum is right?

You might also scroll down the installer menu to 'Execute a shell',
and then do md5sum on some files to check they are being read
properly.  Files worth checking are:

105fbd1a274528ca2b5cc93fd3b9dd08  debian/dists/sid/Release
1ab866241b09154589453958ebab8673  debian/dists/sid/main/binary-hppa/Release
f37073f9eb41413815e44285bcbb02a6  debian/dists/sid/main/binary-hppa/Packages
51235d20debb1ffce01732b3bff129ee  debian/dists/sid/main/binary-hppa/Packages.gz
340a87e3412321b4ac2c0522b23c7a70  debian/dists/sid/main/binary-hppa/base/adduser_3.36_all.deb

>From the installer shell you can do something like

debootstrap sid /target file:/instmnt/debian

with your target disk mounted under /target, and CD debian tree under
instmnt.  That will give more output, which might give a clue.

Richard





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From: Michael S.Zick <mszick@pflash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Apollo 735/99 hangs after booting from CDROM
Date: Fri, 8 Jun 2001 09:05:56 -0500
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To: "Mike Werneke" <mikewerneke@hotmail.com>,
	parisc-linux@lists.parisc-linux.org
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Xref: news.gmane.org gmane.linux.ports.parisc:11289

Hi Mike
& Everyone

Try this:

Do a manual boot - so that you: boot xxxxxx IPL

Using the command line editor built into IPLBOOT -
Change the:: console=3Dtty0 entry
To: console=3DttyB
Proceed with boot.

Expect: Boot should proceed normally, until -
you get a message about "unable to open initial terminal"

If such is the case, then your model 735 is affected by a
problem reported for other models. =20
Please post your results - the more model specfic
information availabe for the people working the problem,
the better.

At this point, kernel should be running and responding to
other points of access (such as over the network).

Mike (to Mike)


On Wed, 06 Jun 2001, Mike Werneke wrote:
> Hello.
>=20
> I have an HP Apollo 735/99 workstation with 112MB RAM and a 2GB HD.  Th=
e=20
> external SCSI CDROM is a bit old, but it's Sony from Sun.  I burned the=
=20
> 32-bit graphical iso this afternoon and it booted into the 2.4.0-pa10=20
> kernel.   After it's done searching for devices (it finds 13 of them), =
it=20
> prints out:
>=20
> --snip
> CPU(s): 1 x PA7100 (PCX-T) at 99.000000 MHz
> Kernel command line: HOME=3D/ TERM=3Dlinux root=3D/dev/ram console=3Dtt=
y0 sti=3D0=20
> sti_font=3DVGA8x16
> Console: colour dummy device 80x25
> snip--
>=20
> and then hangs.  Could this be a bad iso image? Or is this a known issu=
e?=20
> Any help would be greatly appreciated (as is all the effort already don=
e by=20
> the developers of the parisc port).
>=20
> Thanks-
>=20
> Mike Werneke
> _________________________________________________________________
> Get your FREE download of MSN Explorer at http://explorer.msn.com
>=20
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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From: Michael S.Zick <mszick@pflash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Apollo 735/99 hangs after booting from CDROM
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Xref: news.gmane.org gmane.linux.ports.parisc:11290

Note to all -

The problem exists (on my 720) WITHOUT the frame buffer code
in the image.

Mike

On Thu, 07 Jun 2001, Thomas Bogendoerfer wrote:
> On Thu, Jun 07, 2001 at 03:51:22AM -0000, Mike Werneke wrote:
> > --snip
> > CPU(s): 1 x PA7100 (PCX-T) at 99.000000 MHz
> > Kernel command line: HOME=3D/ TERM=3Dlinux root=3D/dev/ram console=3D=
tty0 sti=3D0=20
> > sti_font=3DVGA8x16
> > Console: colour dummy device 80x25
> > snip--
> >=20
> > and then hangs.  Could this be a bad iso image? Or is this a known is=
sue?=20
>=20
> no, you are running the sti console kernel on a not supported frame buf=
fer.
> Use the 32serial image.
>=20
> Thomas.
>=20
> --=20
> Crap can work. Given enough thrust pigs will fly, but it's not necessar=
y a
> good idea.                                 [ Alexander Viro on linux-ke=
rnel ]
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Apollo 735/99 hangs after booting from CDROM
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Cc: Mike Werneke <mikewerneke@hotmail.com>,
	parisc-linux@lists.parisc-linux.org
To: "Michael S . Zick" <mszick@pflash.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11291

On Fri, Jun 08, 2001 at 09:05:56AM -0500, Michael S . Zick wrote:
> Hi Mike
> & Everyone
> 
> Try this:
> 
> Do a manual boot - so that you: boot xxxxxx IPL
> 
> Using the command line editor built into IPLBOOT -
> Change the:: console=tty0 entry
> To: console=ttyB
> Proceed with boot.
> 
> Expect: Boot should proceed normally, until -
> you get a message about "unable to open initial terminal"
> 
> If such is the case, then your model 735 is affected by a
> problem reported for other models.  
> Please post your results - the more model specfic
> information availabe for the people working the problem,
> the better.
> 
> At this point, kernel should be running and responding to
> other points of access (such as over the network).

I don't see how this helps at all for people trying to install
from the ISOs.  True the kernel might continue to boot it you set
console=ttyB, but it is hardly going to respond to the network.
It hasn't been given an IP address, isn't running inetd, etc.

If you were to create a configured system somehow (on nfsroot
perhaps) you might be able to boot and access the system via
the network.

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Apollo 735/99 hangs after booting from CDROM
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Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
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	parisc-linux@lists.parisc-linux.org
To: "Michael S . Zick" <mszick@pflash.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11292

On Fri, Jun 08, 2001 at 09:15:02AM -0500, Michael S . Zick wrote:
> Note to all -
> 
> The problem exists (on my 720) WITHOUT the frame buffer code
> in the image.

Well, with CONFIG_STI_CONSOLE and CONFIG_FB_STI both unset your kernel
can't be hanging after "Console: colour dummy device 80x25", can it?
So at this point I don't think we know it is the same problem on
735+sti as it is on your 720+serial.

Richard

> Mike
> 
> On Thu, 07 Jun 2001, Thomas Bogendoerfer wrote:
> > On Thu, Jun 07, 2001 at 03:51:22AM -0000, Mike Werneke wrote:
> > > --snip
> > > CPU(s): 1 x PA7100 (PCX-T) at 99.000000 MHz
> > > Kernel command line: HOME=/ TERM=linux root=/dev/ram console=tty0 sti=0 
> > > sti_font=VGA8x16
> > > Console: colour dummy device 80x25
> > > snip--
> > > 
> > > and then hangs.  Could this be a bad iso image? Or is this a known issue? 
> > 
> > no, you are running the sti console kernel on a not supported frame buffer.
> > Use the 32serial image.
> > 
> > Thomas.




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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Apollo 735/99 hangs after booting from CDROM
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Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Mike Werneke <mikewerneke@hotmail.com>,
	parisc-linux@lists.parisc-linux.org
To: Richard Hirst <rhirst@linuxcare.com>
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Richard

Congrat's (early) -

You may have spotted the problem -

There isn't any "CONFIG_FB_STI" in the config file shipped
with V0.9 iso image.

Nor in any of the few CVS-Kernel tar-zips that I have checked.

Mike

On Fri, 08 Jun 2001, Richard Hirst wrote:
> On Fri, Jun 08, 2001 at 09:15:02AM -0500, Michael S . Zick wrote:
> > Note to all -
> >=20
> > The problem exists (on my 720) WITHOUT the frame buffer code
> > in the image.
>=20
> Well, with CONFIG_STI_CONSOLE and CONFIG_FB_STI both unset your kernel
> can't be hanging after "Console: colour dummy device 80x25", can it?
> So at this point I don't think we know it is the same problem on
> 735+sti as it is on your 720+serial.
>=20
> Richard
>=20
> > Mike
> >=20
> > On Thu, 07 Jun 2001, Thomas Bogendoerfer wrote:
> > > On Thu, Jun 07, 2001 at 03:51:22AM -0000, Mike Werneke wrote:
> > > > --snip
> > > > CPU(s): 1 x PA7100 (PCX-T) at 99.000000 MHz
> > > > Kernel command line: HOME=3D/ TERM=3Dlinux root=3D/dev/ram consol=
e=3Dtty0 sti=3D0=20
> > > > sti_font=3DVGA8x16
> > > > Console: colour dummy device 80x25
> > > > snip--
> > > >=20
> > > > and then hangs.  Could this be a bad iso image? Or is this a know=
n issue?=20
> > >=20
> > > no, you are running the sti console kernel on a not supported frame=
 buffer.
> > > Use the 32serial image.
> > >=20
> > > Thomas.




From - Thu Nov 08 21:18:00 2018
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From: Peter Weilbacher <weilbach@uni-sw.gwdg.de>
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Subject: [parisc-linux] Kernel faults on boot
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On Fri, 8 Jun 2001, Richard Hirst wrote:

> On Wed, Jun 06, 2001 at 02:18:07PM -0700, E Frank Ball wrote:
> > On Wed, Jun 06, 2001 at 02:02:12PM -0700, E Frank Ball wrote:
> > }
> > } I have a 712/80 and a graphics monitor (HP A1097C).  I got the base
> > } system running from the palinux-0.9-32sti.iso CD.
> >
> > It had rebooted ok a couple of times, but now it get to starting cron,
> > then register dumps with a kernel fault.
>
> As mentioned in the errata <http://parisc-linux.org/release-0.9/errata.html>,
> sti installs have a tendency to crash on reboot at the moment.  If this is a
> repeatable problem, I'd be interested in the register dump.

Hi!

I have played with a 712/60 and had the same problem as Frank. I got
it installed over the first reboot, but after a the next one on
every reboot it crashed with Kernel faults at cron.

Now I have reinstalled and I do not get over the reboot. Is it
explained somewhere, which I need to write down, to help you debug
the problem? (I guess it doesn't make it into any logs, which I
could look at by putting the disk on another machine.)

Greetings,
	Peter.





From - Thu Nov 08 21:18:00 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] memcpy_fromio() seems partially broken [with patch]
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Hi,

while I was playing with a few network-cards in the c3k I found a strange 
behaviour when copying unaligned data with memcpy_fromio() off the PCI bus.

Background: 
I wanted to copy data off the network-card (HP J2585A) from an 4-byte aligned 
PCI address to an 2-byte aligned (b/c of skb_reserve(skb, 2)) memory-address 
with memcpy_fromio().
The current code in CVS for memcpy_fromio() copied byteswapped and/or 
completely wrong data for all copied values, while the following 
memcpy_fromio() worked without problems:

/* Copies a block of memory from a device in an efficient manner.
 * Assumes the device can cope with 32-bit transfers.  If it can't,
 * don't use this function.
 */
void memcpy_fromio(const void *dest, unsigned long src, int count)
{
        u32 value;
        if (((unsigned long)dest & 3) != (src & 3))
                goto wordcopy;
        while (src & 3) {
                *(char *)dest = readb(src++);
                ((char *)dest)++;
                count--;
        }
        while (count > 3) {
                *(u32 *)dest = readl(src);
                dest += 4;
                src += 4;
                count -= 4;
        }
        if (!count)
                return;
 wordcopy:
        if (src & 3)
                goto bytecopy;
 wordcopy_loop:
        value = readl(src);
        *((char*)dest) = (char) (value >> 24);  dest++;
        if (--count == 0) return;
        *((char*)dest) = (char) (value >> 16);  dest++;
        if (--count == 0) return;
        *((char*)dest) = (char) (value >> 8);   dest++;
        if (--count == 0) return;
        *((char*)dest) = (char) (value);  dest++;
        if (count) goto wordcopy_loop;
        return;
 
 bytecopy:
        while (count--) {
                *(char *)dest = readb(src++);
                ((char *)dest)++;
        }
}

The previous version copied all data with readb() while this implementation 
tries to access the (pci-)bus most of the time with readl()s. 
I know, this is not the best or cleanest implementation, but I think we need 
to change memcpy_fromio() in such a manner.

What is your thought about it, or any ideas why the previous version sucked ?

Greetings,
Helge




From - Thu Nov 08 21:18:00 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] memcpy_fromio() seems partially broken [with patch]
Date: Sat, 9 Jun 2001 02:39:17 +0100
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On Fri, Jun 08, 2001 at 11:37:31PM +0200, Helge Deller wrote:
> while I was playing with a few network-cards in the c3k I found a strange 
> behaviour when copying unaligned data with memcpy_fromio() off the PCI bus.
> 
> Background: 
> I wanted to copy data off the network-card (HP J2585A) from an 4-byte aligned 
> PCI address to an 2-byte aligned (b/c of skb_reserve(skb, 2)) memory-address 
> with memcpy_fromio().
> The current code in CVS for memcpy_fromio() copied byteswapped and/or 
> completely wrong data for all copied values, while the following 
> memcpy_fromio() worked without problems:

This is very bizarre.  Following the codepaths, the current code does:

	if (((unsigned long)dest & 3) != (src & 3))
		goto bytecopy;

 bytecopy:
	while (count--) {
		*(char *)dest = readb(src++);
		((char *)dest)++;
	}

and i don't see how that can possibly do byteswapping.  unless byteswapping
is necessary and this code is failing to do that?  Your code is doing:

         if (((unsigned long)dest & 3) != (src & 3))
                 goto wordcopy;

  wordcopy:
         if (src & 3)
                 goto bytecopy;
  wordcopy_loop:
         value = readl(src);
         *((char*)dest) = (char) (value >> 24);  dest++;
         if (--count == 0) return;
         *((char*)dest) = (char) (value >> 16);  dest++;
         if (--count == 0) return;
         *((char*)dest) = (char) (value >> 8);   dest++;
         if (--count == 0) return;
         *((char*)dest) = (char) (value);  dest++;
         if (count) goto wordcopy_loop;
         return;

which is doing a byteswap on the  value returned from readl!  This seems
pretty grotesque to me.  I want to hear from someone (eg grant) who can
say what's actually going on here..

-- 
Revolutions do not require corporate support.




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Apollo 735/99 hangs after booting from CDROM
Date: Sun, 10 Jun 2001 13:41:30 +0100
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Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
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	parisc-linux@lists.parisc-linux.org
To: "Michael S . Zick" <mszick@pflash.com>
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On Fri, Jun 08, 2001 at 10:41:08AM -0500, Michael S . Zick wrote:
> Richard
> 
> Congrat's (early) -
> 
> You may have spotted the problem -
> 
> There isn't any "CONFIG_FB_STI" in the config file shipped
> with V0.9 iso image.

Yes I know, I created those config files ;)

CONFIG_STI_CONSOLE and CONFIG_FB_STI do not both have to be selected.
CONFIG_STI_CONSOLE was developed first, and gives you just a standard
text-style interface, CONFIG_FB_STI gives frame buffer support.

CONFIG_STI_CONSOLE works on more machines that CONFIG_FB_STI at the
moment, so we shipped the 0.9 release with CONFIG_STI_CONSOLE.  As an
example, CONFIG_FB_STI doesn't work on my B180, but CONFIG_STI_CONSOLE
does.  I believe both work on 712.

Richard





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Subject: [parisc-linux] Re: Kernel faults on boot
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Xref: news.gmane.org gmane.linux.ports.parisc:11298

On Fri, Jun 08, 2001 at 07:28:51PM +0200, Peter Weilbacher wrote:
> I have played with a 712/60 and had the same problem as Frank. I got
> it installed over the first reboot, but after a the next one on
> every reboot it crashed with Kernel faults at cron.
> 
> Now I have reinstalled and I do not get over the reboot. Is it
> explained somewhere, which I need to write down, to help you debug
> the problem? (I guess it doesn't make it into any logs, which I
> could look at by putting the disk on another machine.)

I expect to get my hands on a 712 very soon, so I'll see if I can
reproduce this problem.  So far as what you can write down for me...
Usually a kernel crash gives a stack dump followed by the fault type
and address, then a bunch of registers.  I'm not too interested in the
stack dump (which has probably scrolled off the screen, anyway), but
everything after the stack dump would be useful.

You could interact with the IPL and add 'init=/bin/sh' to the parameters.
It might at least boot to a shell prompt then.  It is unlikely to be
cron itself that causes the problem, but just in case you could disable
it by renaming /usr/sbin/cron.  Something like

boot to a shell
e2fsck /dev/sda<whatever your root device is>
mount -o remount,rw /
mv /usr/sbin/cron /usr/sbin/cron.ori
sync
mount -o remount,ro /
hit the reset button and try a normal boot again


Thanks,
  Richard





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Subject: Re: [parisc-linux] Apollo 735/99 hangs after booting from CDROM
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> As an example, CONFIG_FB_STI doesn't work on my B180, but CONFIG_STI_CONSOLE
> does.  I believe both work on 712.

Just for the record: afaik CONFIG_FB_STI only works on newer 715's (715/64, 
715/80, 715/100) machines, but you should be able to safely enable both 
CONFIG_xxx's and will get framebuffer support if available.

Helge




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] memcpy_fromio() seems partially broken [with patch]
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Xref: news.gmane.org gmane.linux.ports.parisc:11300

Matthew Wilcox wrote:
> This is very bizarre.  Following the codepaths, the current code does:
...
>  bytecopy:
...
> and i don't see how that can possibly do byteswapping.  unless byteswapping
> is necessary and this code is failing to do that?

That's what it sounds like.

> Your code is doing:
> 
>          if (((unsigned long)dest & 3) != (src & 3))
>                  goto wordcopy;
> 
>   wordcopy:
>          if (src & 3)
>                  goto bytecopy;
>   wordcopy_loop:
...
> which is doing a byteswap on the  value returned from readl!

Exactly.

> This seems
> pretty grotesque to me.

It looks grotesque but the compiler should be able to
do pretty well with that.

>   I want to hear from someone (eg grant) who can
> say what's actually going on here..

The problem seems that the data needs to be swapped and I don't know why.
Perhaps the card is swapping the data?
acenic (and tulip?) has such a mode.

PARISC pci host bus adapters has a "byte is byte" approach to data.
I've heard the term "address invariance" used but not sure if
that's exactly the same thing. The idea here is data DMA'd into memory
is a byte stream and the CPU reading the data from memory byte at a time
from low address to higher address would see the same data.

Normally we expect the consumer of data (eg device driver) from IO space
to perform the swap and not the accessor functions (eg readl).

I need to do more homework to be certain about the following:
  I *think* CPU reading IO space directly needs to be swapped to
  provide the same illusion that DMA provides. The problem (I think)
  is the data is *little* endian across the PCI bus and presented as
  such to the CPU which then stores it *big* endian in memory.

Dino ERS has a nice chapter on this mess. Elroy follows the same rules.
I'll have to read that again.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:18:01 2018
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On Sun, 10 Jun 2001, Richard Hirst wrote:

> On Fri, Jun 08, 2001 at 07:28:51PM +0200, Peter Weilbacher wrote:
> > I have played with a 712/60 and had the same problem as Frank. I got
> > it installed over the first reboot, but after a the next one on
> > every reboot it crashed with Kernel faults at cron.
> >
> > Now I have reinstalled and I do not get over the reboot. Is it
> > explained somewhere, which I need to write down, to help you debug
> > the problem? (I guess it doesn't make it into any logs, which I
> > could look at by putting the disk on another machine.)
>
> I expect to get my hands on a 712 very soon, so I'll see if I can
> reproduce this problem.  So far as what you can write down for me...
> Usually a kernel crash gives a stack dump followed by the fault type
> and address, then a bunch of registers.  I'm not too interested in the
> stack dump (which has probably scrolled off the screen, anyway), but
> everything after the stack dump would be useful.

Hmm, it seems that the numbers change every time, but here are the
ones from the last instance:

	Kernel Fault: Code=15 regs=1051ca80 (Addr=1dc0ce18)

	     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
	PSW: 00000000000001000000000000001111
	r0-3o 00000000 10236000 10193d70 1dc0cd18
	r4-7o 146fc000 102fe13c 00000001 00000100
	r8-11o 4020b1a8 00000000 00000004 146ff000
	r12-15o 00000100 00000030 00003000 102fe138
	r16-19o 00000080 1051c908 00000001 14786000
	r20-23o 146fc000 102959f8 101da1d4 00000000
	r24-27o 000000ff 1dc0ce18 146fc000 10268010
	r28-31o 00001920 00000004 1051ccc0 10192c78
	sr0-3o 00000000 0000012a 00000000 0000012a
	sr4-7o 00000000 00000000 00000000 00000000

	IASQ: 00000000 00000000 IAOQ: 10236234 10236238
	 IIR: 0f221033    ISR: 00000000  IOR: 1dc0ce18
	 ORIG_R28: 1005f210

Phew, quite a work to type all this stuff, I am glad that you are
not interested in the stack... Perhaps this is useful.

In the meantime I noticed that about every 6th time it boots up
without crashing, but the keyboard setting from the installation
(German) was obviously not saved.

Peter.





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Hi,

> -----Ursprungliche Nachricht-----
> Von: parisc-linux-admin@lists.parisc-linux.org
> [mailto:parisc-linux-admin@lists.parisc-linux.org]Im Auftrag von Peter
> Weilbacher
> Gesendet: Montag, 11. Juni 2001 13:18
> An: Richard Hirst
> Cc: parisc-linux@lists.parisc-linux.org
> Betreff: Re: [parisc-linux] Re: Kernel faults on boot
>
>
> On Sun, 10 Jun 2001, Richard Hirst wrote:
>
> > On Fri, Jun 08, 2001 at 07:28:51PM +0200, Peter Weilbacher wrote:
> > > I have played with a 712/60 and had the same problem as Frank. I got
> > > it installed over the first reboot, but after a the next one on
> > > every reboot it crashed with Kernel faults at cron.
> > >
I've exactly the same problem on a 715/64. I installed 0.9 and the machine
crashes after the reboot while starting cron. Unfortunately I haven't had
the time to check this in detail.

    Nic

--
Nicolai Leymann                   Mail:   nicolai.leymann@telekom.de
T-Nova Berkom                     Phone:  ++49-30-34973570
IP-Technologies, T33              Mobile: ++49-0170-2275345
Goslarer Ufer 35, 10589 Berlin    Fax:    ++49-30-34973571





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On Sun, 10 Jun 2001, Richard Hirst wrote:

> boot to a shell
> e2fsck /dev/sda<whatever your root device is>
> mount -o remount,rw /
> mv /usr/sbin/cron /usr/sbin/cron.ori
> sync
> mount -o remount,ro /
> hit the reset button and try a normal boot again

If I take cron out like that, then the next job (atd) is the one
which triggers the kernel fault. An error message about problems
with <sth>cron / <sth>atd is displayed, but I am never fast enough
to read and unterstand it entirely, before the stack dump causes it
to scroll off the screen.

Is it normal for PA-RISC Linux, that the typical Linux Key-Combo
<Shift>-<PgUp/Down> does not work on the console? Or is that even
normal for Debian?

Greetings,
	Peter.





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Xref: news.gmane.org gmane.linux.ports.parisc:11304

On Mon, Jun 11, 2001 at 01:17:39PM +0200, Peter Weilbacher wrote:
> Hmm, it seems that the numbers change every time, but here are the
> ones from the last instance:
> 
> 	Kernel Fault: Code=15 regs=1051ca80 (Addr=1dc0ce18)
> 
> 	     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> 	PSW: 00000000000001000000000000001111
> 	r0-3o 00000000 10236000 10193d70 1dc0cd18
> 	r4-7o 146fc000 102fe13c 00000001 00000100
> 	r8-11o 4020b1a8 00000000 00000004 146ff000
> 	r12-15o 00000100 00000030 00003000 102fe138
> 	r16-19o 00000080 1051c908 00000001 14786000
> 	r20-23o 146fc000 102959f8 101da1d4 00000000
> 	r24-27o 000000ff 1dc0ce18 146fc000 10268010
> 	r28-31o 00001920 00000004 1051ccc0 10192c78
> 	sr0-3o 00000000 0000012a 00000000 0000012a
> 	sr4-7o 00000000 00000000 00000000 00000000
> 
> 	IASQ: 00000000 00000000 IAOQ: 10236234 10236238
> 	 IIR: 0f221033    ISR: 00000000  IOR: 1dc0ce18
> 	 ORIG_R28: 1005f210
> 
> Phew, quite a work to type all this stuff, I am glad that you are
> not interested in the stack... Perhaps this is useful.

The 'o' chars are actually tabs, which are supposed to make the register
dump line up.

IAOQ is the most important.  You can look up the value in the
sti/sys_map file on the CD:

...
10236204 T bcopy
10236228 T memcpy
1023624c T memmove
...

so it crashed in memcpy.  r2 is often the return address, so back to sys_map:

...
10193a98 T vc_allocate
10193bc8 T vc_resize
10193ed8 t .L1003
10193f40 t .L1043
10193fcc T vc_disallocate
...

looks like memcpy was called from vc_resize().

r236,r25,r24,r23 are the call params, if they havn't been overwritten.

memcpy() disassembles as

00000000 <memcpy>:
   0:   37 18 3f ff     ldo -1(r24),r24
   4:   87 1f 20 20     cmpib,= -1,r24,1c <memcpy+0x1c>
   8:   08 1a 02 54     copy r26,r20
   c:   0f 22 10 33     ldb,ma  1(sr0,r25),r19
  10:   37 18 3f ff     ldo -1(r24),r24
  14:   8f 1f 3f e5     cmpib,<> -1,r24,c <memcpy+0xc>
  18:   0e 93 12 22     stb,ma  r19,1(sr0,r20)
  1c:   e8 40 c0 00     bv r0(rp)
  20:   08 1a 02 5c     copy r26,ret0

r26 = r20, so it failed on the first byte of the move, so call was

  memcpy(0x146fc000,0x1dc0ce18,0x100);

with 0x1dc0ce18 being an invalid address.

I guess that comes from this loop in drivers/char/screen.c:

  while (ol < scr_end) {
          scr_memcpyw((unsigned short *) nl, (unsigned short *) ol, rlth);
          if (rrem)
                  scr_memsetw((void *)(nl + rlth), video_erase_char, rrem);
          ol += osr;
          nl += sr;
  }


At this point I'll stop and hope Helge can comment...


> In the meantime I noticed that about every 6th time it boots up
> without crashing, but the keyboard setting from the installation
> (German) was obviously not saved.

Correct, keyboard config is broken in the release sti image.  If you
manage to boot you could try

mv /bin/loadkeys /bin/loadkeys.old
mv /bin/dumpkeys /bin/dumpkeys.old
mv /etc/console-tools /etc/console-tools.old
apt-get install console-data console-common console-tools console-tools-libs


If that works, let me know and I'll add it to the errata.

Richard





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Xref: news.gmane.org gmane.linux.ports.parisc:11305

On Mon, Jun 11, 2001 at 01:54:16PM +0200, Peter Weilbacher wrote:
> On Sun, 10 Jun 2001, Richard Hirst wrote:
> 
> > boot to a shell
> > e2fsck /dev/sda<whatever your root device is>
> > mount -o remount,rw /
> > mv /usr/sbin/cron /usr/sbin/cron.ori
> > sync
> > mount -o remount,ro /
> > hit the reset button and try a normal boot again
> 
> If I take cron out like that, then the next job (atd) is the one
> which triggers the kernel fault. An error message about problems
> with <sth>cron / <sth>atd is displayed, but I am never fast enough
> to read and unterstand it entirely, before the stack dump causes it
> to scroll off the screen.
> 
> Is it normal for PA-RISC Linux, that the typical Linux Key-Combo
> <Shift>-<PgUp/Down> does not work on the console? Or is that even
> normal for Debian?

I wouldn't expect that to work once the kernel has crashed, unfortunately.

Richard





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From: Matthieu Delahaye <delahaym@esiee.fr>
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Subject: Re: [parisc-linux] Re: Kernel faults on boot
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Hum, could you check your Hardware clock before booting.
I got this problem on a 742 box and when I set the hwclock
to the right date and time (The clock was unset due to lack
of battery), cron worked.

Peter Weilbacher wrote:
> 
> On Sun, 10 Jun 2001, Richard Hirst wrote:
> 
> > On Fri, Jun 08, 2001 at 07:28:51PM +0200, Peter Weilbacher wrote:
> > > I have played with a 712/60 and had the same problem as Frank. I got
> > > it installed over the first reboot, but after a the next one on
> > > every reboot it crashed with Kernel faults at cron.
> > >
> > > Now I have reinstalled and I do not get over the reboot. Is it
> > > explained somewhere, which I need to write down, to help you debug
> > > the problem? (I guess it doesn't make it into any logs, which I
> > > could look at by putting the disk on another machine.)
> >
> > I expect to get my hands on a 712 very soon, so I'll see if I can
> > reproduce this problem.  So far as what you can write down for me...
> > Usually a kernel crash gives a stack dump followed by the fault type
> > and address, then a bunch of registers.  I'm not too interested in the
> > stack dump (which has probably scrolled off the screen, anyway), but
> > everything after the stack dump would be useful.
> 
> Hmm, it seems that the numbers change every time, but here are the
> ones from the last instance:
> 
>         Kernel Fault: Code=15 regs=1051ca80 (Addr=1dc0ce18)
> 
>              YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>         PSW: 00000000000001000000000000001111
>         r0-3o 00000000 10236000 10193d70 1dc0cd18
>         r4-7o 146fc000 102fe13c 00000001 00000100
>         r8-11o 4020b1a8 00000000 00000004 146ff000
>         r12-15o 00000100 00000030 00003000 102fe138
>         r16-19o 00000080 1051c908 00000001 14786000
>         r20-23o 146fc000 102959f8 101da1d4 00000000
>         r24-27o 000000ff 1dc0ce18 146fc000 10268010
>         r28-31o 00001920 00000004 1051ccc0 10192c78
>         sr0-3o 00000000 0000012a 00000000 0000012a
>         sr4-7o 00000000 00000000 00000000 00000000
> 
>         IASQ: 00000000 00000000 IAOQ: 10236234 10236238
>          IIR: 0f221033    ISR: 00000000  IOR: 1dc0ce18
>          ORIG_R28: 1005f210
> 
> Phew, quite a work to type all this stuff, I am glad that you are
> not interested in the stack... Perhaps this is useful.
> 
> In the meantime I noticed that about every 6th time it boots up
> without crashing, but the keyboard setting from the installation
> (German) was obviously not saved.
> 
> Peter.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
Matthieu Delahaye
ESIEE Team
http://mkhppa1.esiee.fr/




From - Thu Nov 08 21:18:01 2018
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Subject: [parisc-linux] Re: Kernel faults on boot
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On Mon, 11 Jun 2001, Matthieu Delahaye wrote:

> Hum, could you check your Hardware clock before booting.
> I got this problem on a 742 box and when I set the hwclock
> to the right date and time (The clock was unset due to lack
> of battery), cron worked.

No, I have set it to approximately the right time, when I installed,
and it is only off by a few minutes. Didn't find a netdate or
ntpdate on the CD to do it better, and with all the boot problems I
didn't have time to compile it myself...

Peter.





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Re: Kernel faults on boot
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Xref: news.gmane.org gmane.linux.ports.parisc:11308

Just tried my new installer that tries to run the second stage installer
automatically on reboot.  Crashed the kernel in kfree(), called from
vc_resize() again.  I'm guessing there is something screwy about the
screenbuf allocation.  Possibly due to the first ones being allocated
from the bootmem allocator?

Richard


On Mon, Jun 11, 2001 at 01:16:36PM +0100, Richard Hirst wrote:
> On Mon, Jun 11, 2001 at 01:17:39PM +0200, Peter Weilbacher wrote:
> > Hmm, it seems that the numbers change every time, but here are the
> > ones from the last instance:
> > 
> > 	Kernel Fault: Code=15 regs=1051ca80 (Addr=1dc0ce18)
> > 
> > 	     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > 	PSW: 00000000000001000000000000001111
> > 	r0-3o 00000000 10236000 10193d70 1dc0cd18
> > 	r4-7o 146fc000 102fe13c 00000001 00000100
> > 	r8-11o 4020b1a8 00000000 00000004 146ff000
> > 	r12-15o 00000100 00000030 00003000 102fe138
> > 	r16-19o 00000080 1051c908 00000001 14786000
> > 	r20-23o 146fc000 102959f8 101da1d4 00000000
> > 	r24-27o 000000ff 1dc0ce18 146fc000 10268010
> > 	r28-31o 00001920 00000004 1051ccc0 10192c78
> > 	sr0-3o 00000000 0000012a 00000000 0000012a
> > 	sr4-7o 00000000 00000000 00000000 00000000
> > 
> > 	IASQ: 00000000 00000000 IAOQ: 10236234 10236238
> > 	 IIR: 0f221033    ISR: 00000000  IOR: 1dc0ce18
> > 	 ORIG_R28: 1005f210
> > 
> > Phew, quite a work to type all this stuff, I am glad that you are
> > not interested in the stack... Perhaps this is useful.
> 
> The 'o' chars are actually tabs, which are supposed to make the register
> dump line up.
> 
> IAOQ is the most important.  You can look up the value in the
> sti/sys_map file on the CD:
> 
> ...
> 10236204 T bcopy
> 10236228 T memcpy
> 1023624c T memmove
> ...
> 
> so it crashed in memcpy.  r2 is often the return address, so back to sys_map:
> 
> ...
> 10193a98 T vc_allocate
> 10193bc8 T vc_resize
> 10193ed8 t .L1003
> 10193f40 t .L1043
> 10193fcc T vc_disallocate
> ...
> 
> looks like memcpy was called from vc_resize().
> 
> r236,r25,r24,r23 are the call params, if they havn't been overwritten.
> 
> memcpy() disassembles as
> 
> 00000000 <memcpy>:
>    0:   37 18 3f ff     ldo -1(r24),r24
>    4:   87 1f 20 20     cmpib,= -1,r24,1c <memcpy+0x1c>
>    8:   08 1a 02 54     copy r26,r20
>    c:   0f 22 10 33     ldb,ma  1(sr0,r25),r19
>   10:   37 18 3f ff     ldo -1(r24),r24
>   14:   8f 1f 3f e5     cmpib,<> -1,r24,c <memcpy+0xc>
>   18:   0e 93 12 22     stb,ma  r19,1(sr0,r20)
>   1c:   e8 40 c0 00     bv r0(rp)
>   20:   08 1a 02 5c     copy r26,ret0
> 
> r26 = r20, so it failed on the first byte of the move, so call was
> 
>   memcpy(0x146fc000,0x1dc0ce18,0x100);
> 
> with 0x1dc0ce18 being an invalid address.
> 
> I guess that comes from this loop in drivers/char/screen.c:
> 
>   while (ol < scr_end) {
>           scr_memcpyw((unsigned short *) nl, (unsigned short *) ol, rlth);
>           if (rrem)
>                   scr_memsetw((void *)(nl + rlth), video_erase_char, rrem);
>           ol += osr;
>           nl += sr;
>   }
> 
> 
> At this point I'll stop and hope Helge can comment...
> 
> 
> > In the meantime I noticed that about every 6th time it boots up
> > without crashing, but the keyboard setting from the installation
> > (German) was obviously not saved.
> 
> Correct, keyboard config is broken in the release sti image.  If you
> manage to boot you could try
> 
> mv /bin/loadkeys /bin/loadkeys.old
> mv /bin/dumpkeys /bin/dumpkeys.old
> mv /etc/console-tools /etc/console-tools.old
> apt-get install console-data console-common console-tools console-tools-libs
> 
> 
> If that works, let me know and I'll add it to the errata.
> 
> Richard
> 




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puffin.external.hp.com ran out of VM sometime in the last 15 hours.
It's back up now.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] 0.9ser can't install on D210
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the problem is over.

i have probe the iso image 0.9ser from ESIEE. this will not work on my D210 and
712-60.
i have download the image from
http://puffin.external.hp.com/pub/parisc/cd-images/palinux-0.9-32serial.iso.gz
and this work.







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Subject: [parisc-linux] clustering ??
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Hi there,

I've got two B132L+ systems running with the 0.6 release. I wondered if
there was someone who has experience with clustering these systems .....

Anyone .....

Tia,

John Hagreis.





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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] clustering ??
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On Mon, Jun 11, 2001 at 09:50:54PM +0200, John Hagreis wrote:
> Hi there,
> 
> I've got two B132L+ systems running with the 0.6 release. I wondered if
> there was someone who has experience with clustering these systems .....
> Anyone .....
> Tia,
> 
> John Hagreis.

John,

Clustering -> HA Systems -> Clustered Services -> Linux Virtual Server ?
Clustering -> Computational Clustering -> Beowulf / COW / NOW ?

I'll assume the later.

We have a cluster of ~48 715/50 Apollo systems.

Our current bottleneck (will be working on this tommorow evening) is
not having a functional rsh for MPI to use (MPICH 1.2.1).

Our setup:

- 3x 10/100 24 Port Switches, Baystack E450's
- NIS / NFS / Gateway Machines (x86 boxes)
- 2x 8' Racks of 48 712/50 PA-RISC Boxes (can you say warm :)

Visit: http://www.baldric.uwo.ca/index.php3
For our latest exploits (recipies coming soon).

What are you looking to do with your systems?

You might want to check out http://www.beowulf.org
(Or even join the mailing list! Excellent discussion for those interested).

Clustering using PA-RISC hardware is the same as clustering using
any other hardware, with the expection that:

- OS is under development (stability may vary)
- Need to understand low level OS functionality.

If anyone else on the list is working on clustering using PA-RISC
boxes, please share the stories.

As far as we know, we are the only group doing something as crazy
as using unsupported PA-RISC hardware to run a beowulf.

War stories? Success stories?


Thanks to Byron Sonne for donating his 712/60 box for testing!

Cheers,
Carlos O'Donell
-------------------------
Baldric Project
http://www.baldric.uwo.ca
-------------------------





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Xref: news.gmane.org gmane.linux.ports.parisc:11313

The switch statement fails to match any cases when IPC_64 is set,
so we must clear it.  This fixes the problem fakeroot was having,
as it could allocate new sysv msg queues, but never free them,
and we're limited to 16 queues.

Index: Makefile
===================================================================
RCS file: /home/cvs/parisc/linux/Makefile,v
retrieving revision 1.50
diff -u -p -r1.50 Makefile
--- Makefile	2001/06/12 01:21:38	1.50
+++ Makefile	2001/06/12 02:33:52
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 4
 SUBLEVEL = 0
-EXTRAVERSION = -pa17
+EXTRAVERSION = -pa18
 
 KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
 
Index: arch/parisc/kernel/sys_parisc32.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/sys_parisc32.c,v
retrieving revision 1.16
diff -u -p -r1.16 sys_parisc32.c
--- sys_parisc32.c	2001/06/08 13:58:08	1.16
+++ sys_parisc32.c	2001/06/12 02:33:53
@@ -2681,7 +2681,7 @@ asmlinkage long sys32_msgctl (int msqid,
 {
 	int err = -EINVAL;
 
-	switch (cmd) {
+	switch (cmd &~ IPC_64) {
 
 	case IPC_INFO:
 	case MSG_INFO:




From - Thu Nov 08 21:18:02 2018
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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] The mouse patch
Date: Mon, 11 Jun 2001 23:26:24 +0200
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This is a multi-part message in MIME format.
--------------AA99F5639BE1355209CBE326
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi all,

	I have produced a newer code for the mouse PS2 on HP box. I mean the
mouse you plug directly to your 712 for example. Of course, due to the
status of STI-console, it works with the STI frame buffer.

	If someone can be kind enough to build a kernel with this patch with
the following .config file and the latest CVS possible and give your
feedback...

The favorite modell will be 712.

Thanks, Thomas
ESIEE Team
--------------AA99F5639BE1355209CBE326
Content-Type: text/plain; charset=us-ascii;
 name="mouse.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="mouse.patch"

diff -Nru linux.old/drivers/char/hp_keyb.h linux.new/drivers/char/hp_keyb.h
--- linux.old/drivers/char/hp_keyb.h	Thu Jan  1 01:00:00 1970
+++ linux.new/drivers/char/hp_keyb.h	Mon Jun 11 21:14:32 2001
@@ -0,0 +1,51 @@
+/*  
+ *    LASI PS/2 keyboard/psaux header for HP-PARISC workstations
+ *
+ *    Copyright 2001    Marteau Thomas <marteaut@esiee.fr>
+ *
+ *    This file contains all the data needed by hp_keyb.c and hp_psaux.c
+ *
+ *    2001/05/10       Try to compact the code in the two files
+ *                  
+ */
+
+/* These defines are not used! */
+#define KBD_ECHO       0xEE            /* in/out */
+#define KBD_DEFAULT    0xF6            /* out */
+#define KBD_DIAGFAIL   0xFD            /* in */
+
+/* Only in hp_keyb.c */
+#define KBD_BREAK      0xF0            /* in */
+
+/* Standard mouse behaviour parameters */
+
+#define AUX_REPLY_ACK   0xFA            /* Command byte ACK. */
+#define AUX_RECONNECT   0xAA            /* scancode when ps2 device is plugged (back) in */
+
+/* PA-RISC define */
+#define LASI_OFFSET     0x0100
+
+#define        LASI_ID         0x00
+#define LASI_RESET     0x00
+#define LASI_RCVDATA   0x04
+#define LASI_XMTDATA   0x04
+#define LASI_CONTROL   0x08
+#define LASI_STATUS    0x0C
+
+/* Control register bits */
+
+#define LASI_CTRL_ENBL         0x01    /* enable interface */
+#define LASI_CTRL_LPBXR                0x02    /* loopback operation */
+#define LASI_CTRL_DIAG         0x20    /* directly control clock/data line */
+#define        LASI_CTRL_DATDIR        0x40    /* data line direct control */
+#define        LASI_CTRL_CLKDIR        0x80    /* clock line direct control */
+
+/* Status register bits */
+
+#define LASI_STAT_RBNE         0x01
+#define LASI_STAT_TBNE         0x02
+#define LASI_STAT_TERR         0x04
+#define LASI_STAT_PERR         0x08
+#define LASI_STAT_CMPINTR      0x10
+#define LASI_STAT_DATSHD       0x40
+#define LASI_STAT_CLKSHD       0x80
diff -Nru linux.old/drivers/char/hp_psaux.c linux.new/drivers/char/hp_psaux.c
--- linux.old/drivers/char/hp_psaux.c	Mon Jun 11 21:03:39 2001
+++ linux.new/drivers/char/hp_psaux.c	Mon Jun 11 21:35:32 2001
@@ -9,7 +9,9 @@
  *			Marteau Thomas (marteaut@esiee.fr)
  * 			Djoudi Malek (djoudim@esiee.fr)
  *	fixed leds control
+ *      implemented the psaux and controlled the mouse scancode based on pc_keyb.c
  */
+#include <linux/config.h>
 
 #include <asm/hardware.h>
 #include <asm/keyboard.h>
@@ -17,58 +19,40 @@
 
 #include <linux/types.h>
 #include <linux/ptrace.h>	/* interrupt.h wants struct pt_regs defined */
+#include <linux/interrupt.h>
 #include <linux/sched.h>	/* for request_irq/free_irq */
 #include <linux/ioport.h>
 #include <linux/kernel.h>
-#include <linux/interrupt.h>
 #include <linux/wait.h>
+#include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/pc_keyb.h>
 #include <linux/kbd_kern.h>
 
+/* mouse include */
+#include <linux/miscdevice.h>
+#include <linux/malloc.h>
+#include <linux/random.h>
+#include <linux/spinlock.h>
+#include <linux/smp_lock.h>
+#include <asm/uaccess.h>
+#include <linux/poll.h>
+
+/* hp include */
+#include "hp_keyb.h"
 
 static struct hp_device *lasi_psaux_keyb;
 static void *lasikbd_hpa;
+static void *lasips2_hpa;
 
-
-#define KBD_BAT		0xaa		/* in */
-#define KBD_SETLEDS	0xed		/* out */
-#define KBD_ECHO	0xee		/* in/out */
-#define KBD_BREAK	0xf0		/* in */
-#define KBD_TYPRATEDLY	0xf3		/* out */
-#define KBD_SCANENABLE	0xf4		/* out */
-#define KBD_DEFDISABLE	0xf5		/* out */
-#define KBD_DEFAULT	0xf6		/* out */
-#define KBD_ACK		0xfa		/* in */
-#define KBD_DIAGFAIL	0xfd		/* in */
-#define KBD_RESEND	0xfe		/* in/out */
-#define KBD_RESET	0xff		/* out */
-
-#define	LASI_ID		0x00
-#define LASI_RESET	0x00
-#define LASI_RCVDATA	0x04
-#define LASI_XMTDATA	0x04
-#define LASI_CONTROL	0x08
-#define LASI_STATUS	0x0c
-
-/* Control register bits */
-
-#define LASI_CTRL_ENBL		0x01	/* enable interface */
-#define LASI_CTRL_LPBXR		0x02	/* loopback operation */
-#define LASI_CTRL_DIAG		0x20	/* directly control clock/data line */
-#define	LASI_CTRL_DATDIR	0x40	/* data line direct control */
-#define	LASI_CTRL_CLKDIR	0x80	/* clock line direct control */
-
-/* Status register bits */
-
-#define LASI_STAT_RBNE		0x01
-#define LASI_STAT_TBNE		0x02
-#define LASI_STAT_TERR		0x04
-#define LASI_STAT_PERR		0x08
-#define LASI_STAT_CMPINTR	0x10
-#define LASI_STAT_DATSHD	0x40
-#define LASI_STAT_CLKSHD	0x80
+#ifdef CONFIG_PSMOUSE
+/* mouse section */
+static unsigned char mouse_reply_expected;
+static struct aux_queue *queue;        /* Mouse data buffer. */
+static int aux_count;
+static spinlock_t kbd_controller_lock = SPIN_LOCK_UNLOCKED;
+#endif
 
 
 static inline u8 read_input(void *hpa)
@@ -111,12 +95,18 @@
 	return;
 }
 
+/* This function is the PA-RISC adaptation of i386 source */
+
+static void aux_write_ack(u8 val)
+{
+      write_output(val,lasikbd_hpa+LASI_OFFSET);
+}
 
 static void lasikbd_leds(unsigned char leds)
 {
-	write_output(KBD_SETLEDS, lasikbd_hpa);
+	write_output(KBD_CMD_SET_LEDS, lasikbd_hpa);
 	write_output(leds, lasikbd_hpa);
-	write_output(KBD_SCANENABLE, lasikbd_hpa);
+	write_output(KBD_CMD_ENABLE, lasikbd_hpa);
 #if 0
 	printk("%s(%d)\n", __FUNCTION__, leds); 
 #endif
@@ -149,7 +139,7 @@
 }
 #endif 
 
-int lasi_ps2_reset(void *hpa)
+int lasi_ps2_reset(void *hpa, int id)
 {
 	u8 control;
 
@@ -161,6 +151,13 @@
 	control = read_control(hpa);
 	write_control(control | LASI_CTRL_ENBL, hpa);
 
+        /* initializes the leds at the default state */
+        if (id==0){
+           write_output(KBD_CMD_SET_LEDS, hpa);
+	   write_output(0, hpa);
+	   write_output(KBD_CMD_ENABLE, hpa);
+	}
+
 	return 0;
 }
 
@@ -171,34 +168,250 @@
 	++inited;
 }
 
-static u8 handle_lasikbd_event(void *hpa)
+
+/* Greatly inspired by pc_keyb.c */
+
+/*
+ * Wait for keyboard controller input buffer to drain.
+ *
+ * Don't use 'jiffies' so that we don't depend on
+ * interrupts..
+ *
+ * Quote from PS/2 System Reference Manual:
+ *
+ * "Address hex 0060 and address hex 0064 should be written only when
+ * the input-buffer-full bit and output-buffer-full bit in the
+ * Controller Status register are set 0."
+ */
+#ifdef CONFIG_PSMOUSE
+
+static int fasync_aux(int fd, struct file *filp, int on)
+{
+   
+	int retval;
+	
+	retval = fasync_helper(fd, filp, on, &queue->fasync);
+	if (retval < 0)
+		return retval;
+	
+	return 0;
+}
+
+
+static inline void handle_mouse_scancode(unsigned char scancode)
+{
+
+	if (mouse_reply_expected) {
+		if (scancode == AUX_REPLY_ACK) {
+			mouse_reply_expected--;
+			return;
+		}
+		mouse_reply_expected = 0;
+	}
+	else if(scancode == AUX_RECONNECT){
+		queue->head = queue->tail = 0;  /* Flush input queue */
+		return;
+	}
+
+	add_mouse_randomness(scancode);
+	if (aux_count) {
+		int head = queue->head;
+				
+		queue->buf[head] = scancode;
+		head = (head + 1) & (AUX_BUF_SIZE-1);
+		
+		if (head != queue->tail) {
+			queue->head = head;
+			kill_fasync(&queue->fasync, SIGIO, POLL_IN);
+			wake_up_interruptible(&queue->proc_list);
+		}
+	}
+}
+
+static inline int queue_empty(void)
 {
-	u8 status;
-	extern void handle_at_scancode(int); /* in drivers/char/keyb_at.c */
+	return queue->head == queue->tail;
+}
 
-	while ((status = read_status(hpa)) & LASI_STAT_RBNE) {
-		u8 scancode;
+static unsigned char get_from_queue(void)
+{
+	unsigned char result;
+	unsigned long flags;
 
-		scancode = read_input(hpa);
+	spin_lock_irqsave(&kbd_controller_lock, flags);
+	result = queue->buf[queue->tail];
+	queue->tail = (queue->tail + 1) & (AUX_BUF_SIZE-1);
+	spin_unlock_irqrestore(&kbd_controller_lock, flags);
+	return result;
+}
 
-		if (inited)
-			handle_at_scancode(scancode);
+
+/*
+ * Write to the aux device.
+ */
+
+static ssize_t write_aux(struct file * file, const char * buffer,
+			 size_t count, loff_t *ppos)
+{
+	ssize_t retval = 0;
+
+	if (count) {
+		ssize_t written = 0;
+
+		if (count > 32)
+			count = 32; /* Limit to 32 bytes. */
+		do {
+			char c;
+			get_user(c, buffer++);
+			written++;
+		} while (--count);
+		retval = -EIO;
+		if (written) {
+			retval = written;
+			file->f_dentry->d_inode->i_mtime = CURRENT_TIME;
+		}
 	}
 
-	tasklet_schedule(&keyboard_tasklet);
+	return retval;
+}
+
 
-	return status;
+
+static ssize_t read_aux(struct file * file, char * buffer,
+			size_t count, loff_t *ppos)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	ssize_t i = count;
+	unsigned char c;
+
+	if (queue_empty()) {
+		if (file->f_flags & O_NONBLOCK)
+			return -EAGAIN;
+		add_wait_queue(&queue->proc_list, &wait);
+repeat:
+		set_current_state(TASK_INTERRUPTIBLE);
+		if (queue_empty() && !signal_pending(current)) {
+			schedule();
+			goto repeat;
+		}
+		current->state = TASK_RUNNING;
+		remove_wait_queue(&queue->proc_list, &wait);
+	}
+	while (i > 0 && !queue_empty()) {
+		c = get_from_queue();
+		put_user(c, buffer++);
+		i--;
+	}
+	if (count-i) {
+		file->f_dentry->d_inode->i_atime = CURRENT_TIME;
+		return count-i;
+	}
+	if (signal_pending(current))
+		return -ERESTARTSYS;
+	return 0;
 }
+
+
+static int open_aux(struct inode * inode, struct file * file)
+{
+	if (aux_count++) {
+	return 0;
+	}
+	queue->head = queue->tail = 0;		/* Flush input queue */
+	aux_count =1;
+	
+	aux_write_ack(AUX_ENABLE_DEV); /* Enable aux device */
+	
+	return 0;
+}
+
+
+/* No kernel lock held - fine */
+static unsigned int aux_poll(struct file *file, poll_table * wait)
+{
+
+	poll_wait(file, &queue->proc_list, wait);
+	if (!queue_empty())
+		return POLLIN | POLLRDNORM;
+	return 0;
+}
+
+
+static int release_aux(struct inode * inode, struct file * file)
+{
+	lock_kernel();
+	fasync_aux(-1, file, 0);
+	if (--aux_count) {
+	   unlock_kernel();
+		return 0;
+	}
+	unlock_kernel();
+	return 0;
+}
+#endif
+
+
+/* This function is looking at the PS2 controller and empty the two buffers */
+
+static u8 handle_lasikbd_event(void *hpa)
+{
+        u8 status_keyb,status_mouse,scancode,id;
+        extern void handle_at_scancode(int); /* in drivers/char/keyb_at.c */
+        
+        /* Mask to get the base address of the PS/2 controller */
+
+        id = gsc_readb(hpa+LASI_ID) & 0x0f;
+        
+        if (id==1) 
+           hpa=hpa-LASI_OFFSET; 
+        lasikbd_hpa=hpa;
+        
+
+        status_keyb = read_status(hpa);
+        status_mouse = read_status(hpa+LASI_OFFSET);
+
+        while ((status_keyb|status_mouse) & LASI_STAT_RBNE){
+           
+           while (status_keyb & LASI_STAT_RBNE) {
+	      
+              scancode = read_input(hpa);
+	      
+	      if (inited)
+	      {
+		 handle_at_scancode(scancode); 
+              }
+	      
+	      status_keyb =read_status(hpa);
+           }
+	   
+#ifdef CONFIG_PSMOUSE
+           while (status_mouse & LASI_STAT_RBNE) {
+             
+	      scancode = read_input(hpa+LASI_OFFSET);
+	      handle_mouse_scancode(scancode);
+              status_mouse=read_status(hpa+LASI_OFFSET);
+	   }
+           status_mouse=read_status(hpa+LASI_OFFSET);
+#endif
+           status_keyb =read_status(hpa);
+        }
+
+        tasklet_schedule(&keyboard_tasklet);
+        return (status_keyb|status_mouse);
+}
+
+
+
 	
 extern struct pt_regs *kbd_pt_regs;
 
 static void lasikbd_interrupt(int irq, void *dev, struct pt_regs *regs)
 {
-	lasikbd_hpa = dev; /* save "hpa" for lasikbd_leds() */
+	lasips2_hpa = dev; /* save "hpa" for lasikbd_leds() */
 
 	kbd_pt_regs = regs;
 
-	handle_lasikbd_event(lasikbd_hpa);
+	handle_lasikbd_event(lasips2_hpa);
 }
 
 
@@ -230,6 +443,21 @@
 #endif
 };
 
+#ifdef CONFIG_PSMOUSE
+struct file_operations psaux_fops = {
+	read:		read_aux,
+	write:		write_aux,
+	poll:		aux_poll,
+	open:		open_aux,
+	release:	release_aux,
+	fasync:		fasync_aux,
+};
+
+static struct miscdevice psaux_mouse = {
+	PSMOUSE_MINOR, "psaux", &psaux_fops
+};
+#endif
+
 static int __init
 lasi_ps2_register(struct hp_device *d, struct pa_iodc_driver *dri)
 {
@@ -247,21 +475,27 @@
 		name = "psaux"; /* "mouse" */;
 		break;
 	default:
-		printk(KERN_WARNING "unknown PS/2 port %d found!  Get famous now by reporting this to parisc-linux@parisc-linux.org!\n", id);
+		printk(KERN_WARNING "unknown PS/2 port %d found!  Get famous now by reporting this to parisc-linux@thepuffingroup.com!\n", id);
 		name = "unknown";
 	}
 
-	if (id==0) {
-		printk("Initializing Lasi PS/2-%s port at 0x%p...\n", name, hpa);
-	} else {
-		printk("Support for Lasi PS/2-%s not yet available !\n", name); /* FIXME */
-	}
+	if (id==0)
+	    printk("Initializing Lasi PS/2-%s port at 0x%p...\n", name, hpa);
+#ifdef CONFIG_PSMOUSE
+	else 
+	   if (id==1)
+	      printk("Initializing Lasi PS/2-%s port at 0x%p...\n", name, hpa);
+#endif
+	   else
+	      printk("Support for Lasi PS/2-%s not yet available !\n", name); /* FIXME */
 	    
 	if (id==0) {
 		int err;
 		unsigned int irq;
-
-		if ((err = lasi_ps2_reset(hpa)))
+		
+		lasikbd_hpa=hpa;
+		
+		if ((err = lasi_ps2_reset(hpa,id)))
 			printk("%s: lasi_ps2_reset() failed!\n", __FUNCTION__);
 
 		irq = busdevice_alloc_irq(d);
@@ -270,10 +504,38 @@
 		    
 		request_irq(irq, lasikbd_interrupt, 0, name, hpa);
 
-		request_mem_region((unsigned long)hpa, LASI_STATUS + 4, name);
+		request_region((unsigned long)hpa, LASI_STATUS + 4, name);
 		
 		register_kbd_ops(&gsc_ps2_kbd_ops);
 	}
+
+#ifdef CONFIG_PSMOUSE
+	if (id==1){
+		int err;
+		unsigned int irq;
+
+		if ((err = lasi_ps2_reset(hpa,id)))
+			printk("%s: lasi_ps2_reset() failed!\n", __FUNCTION__);
+
+		irq = busdevice_alloc_irq(d);
+		if (!irq)
+		    return -ENODEV;
+		    
+		request_irq(irq, lasikbd_interrupt, 0, name, hpa);
+
+		request_region((unsigned long)hpa, LASI_STATUS + 4, name);
+		
+		misc_register(&psaux_mouse);
+		queue = (struct aux_queue *) kmalloc(sizeof(*queue), GFP_KERNEL);
+		memset(queue, 0, sizeof(*queue));
+		queue->head = queue->tail = 0;
+		init_waitqueue_head(&queue->proc_list);
+
+		aux_write_ack(AUX_ENABLE_DEV);
+		
+	}
+#endif	   
+
 
 	return 0;
 }
diff -Nru linux.old/drivers/gsc/lasi.c linux.new/drivers/gsc/lasi.c
--- linux.old/drivers/gsc/lasi.c	Mon Jun 11 21:03:40 2001
+++ linux.new/drivers/gsc/lasi.c	Mon Jun 11 21:08:32 2001
@@ -48,7 +48,8 @@
 	case 0x5000:	irq = 26; break; /* RS232 */
 	case 0x6000:	irq = 22; break; /* SCSI */
 	case 0x7000:	irq = 23; break; /* LAN */
-	case 0x8000:	irq =  5; break; /* PS/2 Keyboard and Mouse */
+	case 0x8000:    irq =  5; break; /* PS/2 Keyboard */
+        case 0x8100:    irq =  5; break; /* PS/2 Mouse */
 	case 0xA000:	irq = 11; break; /* Floppy Disk Controller */
 	default: 	irq = -1; break; /* unknown */
 	}

--------------AA99F5639BE1355209CBE326
Content-Type: text/plain; charset=us-ascii;
 name="conf"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="conf"

#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set

#
# Code maturity level options
#
# CONFIG_EXPERIMENTAL is not set

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# Processor type
#
# CONFIG_PA7100 is not set
# CONFIG_PA7200 is not set
CONFIG_PA7100LC=y
# CONFIG_PA8X00 is not set
CONFIG_PA11=y

#
# General options
#
# CONFIG_SMP is not set
# CONFIG_KWDB is not set
CONFIG_GSC=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_WAX_EISA=y
# CONFIG_SUPERIO is not set
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_PCI_NAMES=y
CONFIG_CHASSIS_LCD_LED=y

#
# General setup
#
# CONFIG_HOTPLUG is not set
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Parallel port support
#
CONFIG_PARPORT=y
# CONFIG_PARPORT_PC is not set
# CONFIG_PARPORT_AMIGA is not set
# CONFIG_PARPORT_MFC3 is not set
# CONFIG_PARPORT_ATARI is not set
CONFIG_PARPORT_GSC=y
# CONFIG_PARPORT_SUNBPP is not set
# CONFIG_PARPORT_OTHER is not set
# CONFIG_PARPORT_1284 is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_BLK_DEV_LVM is not set
# CONFIG_LVM_PROC_FS is not set

#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_NETLINK is not set
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=y
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
CONFIG_SCSI_LASI=y
CONFIG_SCSI_ZALON=y
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_NCR53C8XX is not set
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_PQS_PDS is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_NET_SB1000 is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
CONFIG_TULIP=y
# CONFIG_DE4X5 is not set
# CONFIG_DGRS is not set
# CONFIG_DM9102 is not set
# CONFIG_EEPRO100 is not set
# CONFIG_EEPRO100_PM is not set
# CONFIG_LNE390 is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_8139TOO is not set
# CONFIG_RTL8129 is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_HAMACHI is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Input core support
#
# CONFIG_INPUT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
# CONFIG_HIL is not set
CONFIG_SERIAL=y
# CONFIG_SERIAL_CONSOLE is not set
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=y
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_PC110_PAD is not set

#
# Joysticks
#
# CONFIG_JOYSTICK is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_SYSV_FS_WRITE is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
CONFIG_NFS_FS=y
# CONFIG_NFS_V3 is not set
CONFIG_ROOT_NFS=y
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
# CONFIG_NLS is not set

#
# Console drivers
#

#
# Frame-buffer support
#
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FB_CYBER2000 is not set
CONFIG_FB_STI=y
# CONFIG_FBCON_ADVANCED is not set
CONFIG_FBCON_CFB2=y
CONFIG_FBCON_CFB4=y
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_STI=y
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set
# CONFIG_FBCON_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y

#
# Sound
#
CONFIG_SOUND=y
CONFIG_SOUND_HARMONY=y
# CONFIG_SOUND_CMPCI is not set
# CONFIG_SOUND_EMU10K1 is not set
# CONFIG_SOUND_FUSION is not set
# CONFIG_SOUND_CS4281 is not set
# CONFIG_SOUND_ES1370 is not set
# CONFIG_SOUND_ES1371 is not set
# CONFIG_SOUND_ESSSOLO1 is not set
# CONFIG_SOUND_MAESTRO is not set
# CONFIG_SOUND_SONICVIBES is not set
# CONFIG_SOUND_TRIDENT is not set
# CONFIG_SOUND_MSNDCLAS is not set
# CONFIG_SOUND_MSNDPIN is not set
# CONFIG_SOUND_VIA82CXXX is not set
# CONFIG_SOUND_OSS is not set
# CONFIG_SOUND_TVMIXER is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

--------------AA99F5639BE1355209CBE326--





From - Thu Nov 08 21:18:02 2018
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X-Mozilla-Keys:                                                                                 
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From: Aaron Macks <aaronm@cs.brandeis.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] clustering ??
Date: Mon, 11 Jun 2001 19:02:59 -0400 (EDT)
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Cc: parisc-linux@parisc-linux.org
To: carlos@baldric.uwo.ca (Carlos O'Donell Jr.)
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Mon Jun 11 17:03:21 2001
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In-Reply-To: <20010611162132.A846@megatonmonkey.net> from "Carlos O'Donell Jr." at Jun 11, 2001 04:21:32 PM
X-Mailer: ELM [version 2.5 PL1]
Xref: news.gmane.org gmane.linux.ports.parisc:11315

> If anyone else on the list is working on clustering using PA-RISC
> boxes, please share the stories.
> 
> As far as we know, we are the only group doing something as crazy
> as using unsupported PA-RISC hardware to run a beowulf.
> 
> War stories? Success stories?
Well I have a cluster of misc machines and 8 HPPA boxes, the problems
is that they are all 715/33's, so adding them to the mix is not yet
> possible.  The good news is that every other flavor of Linux I
> use(PPC, i386,i586,i686,m68k,SPARC) and Irix all play nice with each
> other and I can't figure out why HPPA linux would be much different.

As far as RSH goes, have you tried to use SSH as a transparent
standin(sometimes you need to replace rsh with 'ssh -x' for everything
to be happy.  I use LAM instead of MPICH, but replacing rsh for me is
as simple as a configure-time selection.
Aaron
http://wiglaf.cs-i.brandeis.edu




From - Thu Nov 08 21:18:02 2018
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From: Clement MOYROUD <moyroudc@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] patch  for Dino serial port (again !)
Date: Tue, 12 Jun 2001 15:30:56 +0000
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--'ThIs-RaNdOm-StRiNg-/=_.80630276:
Content-Type: text/plain; charset=iso-8859-1
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MIME-Version: 1.0

Hi all !                                                              
                                                                      
Based on Grant's comments (thanks Grant !), I decided to keep the     
method used in my first patch, as the other one was making things more
complicated. So I modified the parts that needed clearing, and I make 
this patch available for you to test before commitment to cvs.        
Don't hesitate to test, as it has only been tested on a B132L+ and a  
B180. Any remarks or suggestions appreciated !                        
                                                                      
Clement MOYROUD                                                       
ESIEE Team                                                            
--'ThIs-RaNdOm-StRiNg-/=_.80630276:
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--'ThIs-RaNdOm-StRiNg-/=_.80630276:--





From - Thu Nov 08 21:18:02 2018
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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] clustering ??
Date: Tue, 12 Jun 2001 09:42:52 -0400
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To: Aaron Macks <aaronm@cs.brandeis.edu>
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[snip]
> is that they are all 715/33's, so adding them to the mix is not yet
> possible.  The good news is that every other flavor of Linux I
> 
> As far as RSH goes, have you tried to use SSH as a transparent
> standin(sometimes you need to replace rsh with 'ssh -x' for everything
> to be happy.  I use LAM instead of MPICH, but replacing rsh for me is
> as simple as a configure-time selection.
> Aaron
> http://wiglaf.cs-i.brandeis.edu
>

Aaron,

Yes, ssh does work as a direct replacement for rsh.
However, I believed that ssh was in haitus (due to OpenSSL not working). 

With a little work the 715/33's should work.
We have various 715/33's that hobble on a leg!
If you have any serious problems just email us, or spam the list ;)

Cheers,
Carlos





From - Thu Nov 08 21:18:02 2018
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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] clustering ??
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On Tue, Jun 12, 2001 at 10:07:39PM +1000, Pete wrote:
> > We have a cluster of ~48 715/50 Apollo systems.
> 
> Great!! :)  I have one in the shed that I need a serial cable for... :)
> 
> > Visit: http://www.baldric.uwo.ca/index.php3
> 
> Did that.. nice site... didn't quite find out what youa re planning on 
> with the cluster... then again I'm not the most observant...
> Pete.

Pete,

We used our first PPC cluster to enumerate Prime Alternating Knots
to 18 crossings. 
http://baldric.uwo.ca/article.php3?section=baldric&article=knots

After that, it's been in use, on and off by other students.

Our second cluster, the PA-RISC system, will be used for validating some
quantum gravity research (interesting stuff).

Along with some other pet projects.

We are currently still in the setup phase.

- Putting together root tarball to use as node install
- Get rsh to work

And yes, SSH will work as a direct replacement for RSH in MPICH.

However, I believed that SSH was currently broken on PA-RISC due to OpenSSL.

Haven't tried compiling non-open SSH :)
I think we might give it a shot tonight.


Cheers,
Carlos O'Donell
-------------------------
Baldric Project
http://www.baldric.uwo.ca
-------------------------




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From: Jay Konrad <jkonrad@fonts.de>
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Subject: [parisc-linux] xbase clients
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Hi guys!!

Can anybody tell me where I can find those?? My system is almost ready, this is the only thing missing!!

Pleeeeze can anybody help me?

I get this message:

bhows49999:/data/archiv# dpkg -i xbase-clients_4.0.3-1_hppa.deb
(Reading database ... 8929 files and directories currently installed.)
Preparing to replace xbase-clients 4.0.3-1 (using
xbase-clients_4.0.3-1_hppa.deb) ...
Unpacking replacement xbase-clients ...
dpkg: dependency problems prevent configuration of xbase-clients:
 xbase-clients depends on libgl1; however:
  Package libgl1 is not installed.
dpkg: error processing xbase-clients (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 xbase-clients
bhows49999:/data/archiv#

If anybody knows where to get this package, I would be more than happy.

Thanx in advance

Jay





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From: Clement MOYROUD <moyroudc@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Patches corrections available
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Hi  all!                                                              
                                                                      
The recent two patches of the ESIEE team have been corrected and new  
versions are available on our website http://www.esiee.fr/puffin.     
Thanks for trying them !                                              
                                                                      
Clement MOYROUD                                                       
ESIEE Team                                                            




From - Thu Nov 08 21:18:02 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] xbase clients
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Maybe:

apt-get update
apt-get install xbase-clients

Helge

On Tuesday, 12. June 2001 17:31, Jay Konrad wrote:

> Hi guys!!
>
> Can anybody tell me where I can find those?? My system is almost ready,
> this is the only thing missing!!
>
> Pleeeeze can anybody help me?
>
> I get this message:
>
> bhows49999:/data/archiv# dpkg -i xbase-clients_4.0.3-1_hppa.deb
> (Reading database ... 8929 files and directories currently installed.)
> Preparing to replace xbase-clients 4.0.3-1 (using
> xbase-clients_4.0.3-1_hppa.deb) ...
> Unpacking replacement xbase-clients ...
> dpkg: dependency problems prevent configuration of xbase-clients:
>  xbase-clients depends on libgl1; however:
>   Package libgl1 is not installed.
> dpkg: error processing xbase-clients (--install):
>  dependency problems - leaving unconfigured
> Errors were encountered while processing:
>  xbase-clients
> bhows49999:/data/archiv#
>
> If anybody knows where to get this package, I would be more than happy.
>
> Thanx in advance
>
> Jay




From - Thu Nov 08 21:18:02 2018
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Subject: Re: [parisc-linux] clustering ??
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Xref: news.gmane.org gmane.linux.ports.parisc:11322

On Tue, 12 Jun 2001, Carlos O'Donell Jr. wrote:
[snip]
> And yes, SSH will work as a direct replacement for RSH in MPICH.
>
> However, I believed that SSH was currently broken on PA-RISC due to OpenSSL.
>
> Haven't tried compiling non-open SSH :)
> I think we might give it a shot tonight.

Not sure what "broken" may mean, but my 0.9 install has a working SSH
server running on it. Mine *was* installed with contrib and non-free
however, so it may be that a "pure" install doesn't have it.

If I remember right I was asked during the .deb install if I wanted to run
it as a server, answered yes and it's worked ever since (Same as a x86
Debian install). The 0.9 install sure does work better than the 0.6 one
did - no seg faults or errors...





From - Thu Nov 08 21:18:03 2018
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From: Peter Weilbacher <weilbach@uni-sw.gwdg.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel faults on boot
Date: Tue, 12 Jun 2001 21:44:11 +0200 (CEST)
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To: Richard Hirst <rhirst@linuxcare.com>
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On Mon, 11 Jun 2001, Richard Hirst wrote:

> > In the meantime I noticed that about every 6th time it boots up
> > without crashing, but the keyboard setting from the installation
> > (German) was obviously not saved.
>
> Correct, keyboard config is broken in the release sti image.  If you
> manage to boot you could try
>
> mv /bin/loadkeys /bin/loadkeys.old
> mv /bin/dumpkeys /bin/dumpkeys.old
> mv /etc/console-tools /etc/console-tools.old
> apt-get install console-data console-common console-tools console-tools-libs
>
>
> If that works, let me know and I'll add it to the errata.

Not really. It asked me if I wanted to select the keyboard-map from
a list, which was never displayed. It also complained that a package
'kdb' was missing, and I could not find it on the CD, before the
machine was crashing again. For the moment I give up, as I do not
have much time. But if you need specific tests, I would be happy to
assist...

Greetings,
	Peter.





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel faults on boot
Date: Tue, 12 Jun 2001 21:46:45 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:11324

On Tue, Jun 12, 2001 at 09:44:11PM +0200, Peter Weilbacher wrote:
> > If that works, let me know and I'll add it to the errata.
> 
> Not really. It asked me if I wanted to select the keyboard-map from
> a list, which was never displayed. It also complained that a package
> 'kdb' was missing, and I could not find it on the CD, before the
> machine was crashing again. For the moment I give up, as I do not
> have much time. But if you need specific tests, I would be happy to
> assist...

OK, thanks for trying.  I am working on a new installer version that
I think fixes these crashes on biit with the sti install.

Richard





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Hello all. Just wanted to say hello. I've been working with linux for
about 7 years now, mainly with the slackware and redhat distributions.
This weekend I picked up a 712/80 for free, and after getting a CDROM
drive working on it (long story), managed to go through the single easiest
linux install in my entire life. Keep in mind I've never even touched an
HP PA-RISC machine until this weekend. So a big hearty kudos to you guys!
I had a couple questions though:

1.) The machine seems to work generally pretty OK, except that I get
kernel panics fairly often. This did not hinder the install at all though.
any ideas?

2.) since I've never played with HP hardware before (mostly an intel,
sparc, and apple guy), is there any good decent guide to the HP boot
console? for instance, the install readme says to check and set the clock
from the console, but I can't figure out how to do that. Also, is there a
good guide to the hardware itself? like the capabilities of the 712/80,
the video capabilities, expansion, etc... I just like to stay informed.

3.) about a year ago, I remember HP ran some deal where you could send
away for a (mostly) free copy of HP-UX, I think version 10.20. Is this
still happening? I'd really like to get a copy of HP-UX to play around
with on this machine. I'll eventually probably settle with linux, but it's
kinda unfair to the 712 to never run HP-UX on it.

Thanks again!

--
AIM: bdsmchs  ---  http://www.23.org/~chs/
------------------------------------------------------------------------
"And the rifle? Wouldn't go out naked of a rifle. When shoes and
clothes and food, when even hope is gone, we'll have the rifle."
	--John Steinbeck
------------------------------------------------------------------------








From - Thu Nov 08 21:18:03 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] sticon/sercon patch for new bootfloppies...
Date: Wed, 13 Jun 2001 02:24:49 +0200
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--------------Boundary-00=_DHEUAPEMAJDVGWCE8KM5
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 8bit
Subject: 

Hi,

the attached patch enables only those consoles, which are given on the linux 
kernel command line.
Examples: "console=tty0" activates STIcon only, "console=ttyS0" activates 
serial console only and if you use both on the commandline you will get the 
system messages on both consoles.

Known bugs: 
- STIcon will not show any messages which happened before the STI
	initialisation

Please test and comment
Greetings,
Helge

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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: [parisc-linux] New list member..
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Re:

> 3.) about a year ago, I remember HP ran some deal where you could send
> away for a (mostly) free copy of HP-UX, I think version 10.20. Is this
> still happening? I'd really like to get a copy of HP-UX to play around

That was a special Y2K deal ... probably not available now.
(and it was completely free)

I had two URLs for the program, neither work now:

   http://www.software.hp.com/y2kupgrades/cust_wo_supp.html
and
   http://www.software.hp.com/y2kupgrades/swp_upgrades.html

In typical "HP: Always on [fire]" fashion, if you go to:

  http://www.software.hp.com/y2kupgrades

You see:
 
   We're sorry, this site has been discontinued. 
   Please visit the main HP Y2K website. 

Where "main HP Y2K website" is a link to: http://www.hp.com/year2000

and...yep...that gets a 404 :(

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com




From - Thu Nov 08 21:18:03 2018
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On Tue, 12 Jun 2001, Stan Sieler wrote:

> > 3.) about a year ago, I remember HP ran some deal where you could send
> > away for a (mostly) free copy of HP-UX, I think version 10.20. Is this
> > still happening? I'd really like to get a copy of HP-UX to play around
>
> That was a special Y2K deal ... probably not available now.
> (and it was completely free)

damn, that really sucks..

I actually had sent away for and received the HP-UX media just in case I
ever got a pa-risc machine, but I seemed to have lost it.

thanks for the help..

--
AIM: bdsmchs  ---  http://www.23.org/~chs/
------------------------------------------------------------------------
"And the rifle? Wouldn't go out naked of a rifle. When shoes and
clothes and food, when even hope is gone, we'll have the rifle."
	--John Steinbeck
------------------------------------------------------------------------








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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] problem installing on HP735
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Hi all, 
I read the FAQs and browsed the mailing list, but wasn't able to find
anything similar...

I have an HP/735, with an external SE SCSI CD-ROM and serial console.
I downloaded palinux-0.9-32serial.iso and burnt my own CD (well 2 of them,
just in case..) and I can not even boot from CD, getting 

bad IPL checksum

the CD i have is a Toshiba XM 3301TA.

Any help ?

Already thanking you, 

Matteo Boschini
(boschini@cilea.it)








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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] problem installing on HP735
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Xref: news.gmane.org gmane.linux.ports.parisc:11330

On Wed, Jun 13, 2001 at 10:29:15AM +0200, Matteo Boschini wrote:
> 
> Hi all, 
> I read the FAQs and browsed the mailing list, but wasn't able to find
> anything similar...
> 
> I have an HP/735, with an external SE SCSI CD-ROM and serial console.
> I downloaded palinux-0.9-32serial.iso and burnt my own CD (well 2 of them,
> just in case..) and I can not even boot from CD, getting 
> 
> bad IPL checksum
> 
> the CD i have is a Toshiba XM 3301TA.
> 
> Any help ?

Can you read the CD on other systems?  If you can, I'd suspect that
the firmware dowsn't like your CD drive, or there is some cable or
otehr h/w problem.  You could boot the system over the network, and
see if linux can then install from the CD.

Richard





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From: Matteo Boschini <boschini@cilea.it>
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Subject: [parisc-linux] problem installing on HP735
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Hi, I fixed the CD issue. 
I had some problems with the images itself. Downloaded it again, and it
boots. In installing the O.S., console freezes when "Installing Rescue
floppy..."

any hint ?

Furthermore, is it possible to do a "console switch" and activate a
shell like the Alt+F1 on a PC ?

already thanking you all, 
Matteo Boschini 





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Subject: Re: [parisc-linux] sticon/sercon patch for new bootfloppies...
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To: Helge Deller <deller@gmx.de>
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On Wed, Jun 13, 2001 at 02:24:49AM +0200, Helge Deller wrote:
> Hi,
> 
> the attached patch enables only those consoles, which are given on the linux 
> kernel command line.
> Examples: "console=tty0" activates STIcon only, "console=ttyS0" activates 
> serial console only and if you use both on the commandline you will get the 
> system messages on both consoles.
> 
> Known bugs: 
> - STIcon will not show any messages which happened before the STI
> 	initialisation


Just tried a kernel with serial console, sti console, and sti fb all
compiled in, with palo/unstable.  Seems to do the right thing on my B180 :)

The kernel knows it cannot support b180 fb, so uses sti console automatically
but this kernel should use sti fb on those machines that we support.

I left the b180 alone until the "screen blanking" cut in.  It just turns
off the cursor, btw, doesn't blank the screen.

When I came back to it the cursor had gone back to top-left, and all
chars are printed as blobs of garbage.  System is still happy apart from
that.

I think the cursor going to top-left on a screen blank is a result of
your last lot of bug fixes, but not certain of that.

The other thing for people to note is that if you specify both
console=ttyS0 and console=tty0, then the order is important.  The
real console is the second one you specify, the other just gets
a copy of boot messages (all kernel printk's, I guess).

Richard





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Xref: news.gmane.org gmane.linux.ports.parisc:11333

On Wed, Jun 13, 2001 at 12:08:08PM +0200, Matteo Boschini wrote:
> 
> Hi, I fixed the CD issue. 
> I had some problems with the images itself. Downloaded it again, and it
> boots. In installing the O.S., console freezes when "Installing Rescue
> floppy..."

First report I've seen of that.

> any hint ?

No idea, sorry.

> Furthermore, is it possible to do a "console switch" and activate a
> shell like the Alt+F1 on a PC ?

Not on a serial install.  If you can get back to the installer menu
you can scroll down and select 'execute a shell'.

Richard





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On Tue, Jun 12, 2001 at 03:19:46PM -0700, CHS wrote:
> 
> Hello all. Just wanted to say hello. I've been working with linux for
> about 7 years now, mainly with the slackware and redhat distributions.
> This weekend I picked up a 712/80 for free, and after getting a CDROM
> drive working on it (long story), managed to go through the single easiest
> linux install in my entire life. Keep in mind I've never even touched an
> HP PA-RISC machine until this weekend. So a big hearty kudos to you guys!
> I had a couple questions though:
> 
> 1.) The machine seems to work generally pretty OK, except that I get
> kernel panics fairly often. This did not hinder the install at all though.
> any ideas?

You don't say if you are serial or graphical (sti) console based.
I certainly wouldn't expect kernel panics "fairly often" with a
serial console.  For sti console, there are some known issues, for
example, hitting <escape> in vi tends to crash the kernel.  sti console
is much less tested than serial also.  The vi problem is fixed in our
latest kernel source, and you can work round it by changing your terminal
type (from TERM=linux to TERM=vt100, iirc).

If you are sti console based then it is painful, but if you could copy
down the register dump (not the stack dump, most of which will have
scrolled off the screen), then I might be able to tell you more.
If you are serial based, you should be able to capture the output
easily enough.

Richard





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From: Paul Bame <bame@fc.hp.com>
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Subject: [parisc-linux] PALO/kernel-build change proposal
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Many of us are accustomed to the way 'make palo' works in our kernel
source tree (it goes over to the palo source tree, builds palo, and
then utilizes the palo Makefile to produce a bootable image).  I want
to convert to a model based on palo being a separate stable piece
of software for which you may not even have sources.  Many of us are
probably also not using 'palo.conf' files, which are the norm for self-
hosted operation.

When self hosted, there's usually no need to run palo after every
kernel build since palo boots out of the file system by file name.
So I propose that the common self-hosted use model be to use simple 'make'
in the kernel tree [and make modules or whatever].  The resulting 'vmlinux'
file can then be copied to the desired location.

I propose that 'make palo' be changed to simply run 'palo -f ./palo.conf'
after vmlinux is built.  This means palo would have to be in the $PATH
and that the top-level linux source directory would contain a
suitable palo.conf file.  I've been using this model for cross-compiling
for several months and like it.  I would document how xc-ers can best
compile and "install" palo as well as supply a palo.conf file with
our typical configurations.

What is 'make palo' today would be changed to 'make buildrunpalo'.  The
longer name is more truthful and less convenient on purpose.

Feedback?

	-P




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On Tue, Jun 12, 2001 at 08:32:39AM -0800, Tom wrote:
> On Tue, 12 Jun 2001, Carlos O'Donell Jr. wrote:
> [snip]
> > And yes, SSH will work as a direct replacement for RSH in MPICH.
> >
> > However, I believed that SSH was currently broken on PA-RISC due to OpenSSL.
> >
> > Haven't tried compiling non-open SSH :)
> > I think we might give it a shot tonight.
> 
> Not sure what "broken" may mean, but my 0.9 install has a working SSH
> server running on it. Mine *was* installed with contrib and non-free
> however, so it may be that a "pure" install doesn't have it.

the current openssh in the archives has a known bug (which i haven't seen
discussed on the list), which is that X forwarding does't work right.
at least not on my machine :-)

A bug which you'll see ssh trigger (but is actually in libc) is that it'll
set your rlimit to 2GB instead of infinity.  this should be fixed RSN.

-- 
Revolutions do not require corporate support.




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On Wed, 13 Jun 2001, Richard Hirst wrote:

> You don't say if you are serial or graphical (sti) console based.
> I certainly wouldn't expect kernel panics "fairly often" with a
> serial console.  For sti console, there are some known issues, for
> example, hitting <escape> in vi tends to crash the kernel.  sti console
> is much less tested than serial also.  The vi problem is fixed in our
> latest kernel source, and you can work round it by changing your terminal
> type (from TERM=linux to TERM=vt100, iirc).

my mistake, I meant to be thorough, honest :)

I'm using the graphical/sti install..

> If you are sti console based then it is painful, but if you could copy
> down the register dump (not the stack dump, most of which will have
> scrolled off the screen), then I might be able to tell you more.
> If you are serial based, you should be able to capture the output
> easily enough.

register dump, ok, I'll try and do that tonight..

I'd try and work with the machine in serial mode, but I don't have the
null modem adapters and gender changers at home neccessary to work with
it. I'll see what I can dig up though..

thanks for the help.

--
AIM: bdsmchs  ---  http://www.23.org/~chs/
------------------------------------------------------------------------
"And the rifle? Wouldn't go out naked of a rifle. When shoes and
clothes and food, when even hope is gone, we'll have the rifle."
	--John Steinbeck
------------------------------------------------------------------------








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From: Grant Grundler <grundler@puffin.external.hp.com>
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Paul Bame wrote:
...
> When self hosted, there's usually no need to run palo after every
> kernel build since palo boots out of the file system by file name.
> So I propose that the common self-hosted use model be to use simple 'make'
> in the kernel tree [and make modules or whatever].  The resulting 'vmlinux'
> file can then be copied to the desired location.


On x86, "make install" will do all the right things to install the
freshly built kernel but doesn't do a damn thing for kernel modules.
Need to run "make modules" and "make modules_install" to really make
sure eveything is in sync.


> I propose that 'make palo' be changed to simply run 'palo -f ./palo.conf'
> after vmlinux is built.  This means palo would have to be in the $PATH
> and that the top-level linux source directory would contain a
> suitable palo.conf file.  I've been using this model for cross-compiling
> for several months and like it.  I would document how xc-ers can best
> compile and "install" palo as well as supply a palo.conf file with
> our typical configurations.
> 
> What is 'make palo' today would be changed to 'make buildrunpalo'.  The
> longer name is more truthful and less convenient on purpose.


How about "make lifimage"?
That's the only reason I run "make palo" in the XC environment.
Having a XC-palo in the environment is no problem.
In the XC env, I don't expect "make install" to do the right thing (tm).

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: [parisc-linux] Byte mode STI roms
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Hi,

I've played a little bit with the stifb on my C200 with a HCRX24 and got
the stifb to recognize it as valid card. My approach was to just get rid
of that funky STI_Uxx macros by copying the byte rom into memory and
adjusting the offsets. This way sticon-wmode.c and sticon-bmode.c are
nearly the same and with a little bit more tweaking I could get them
merged. 

So is there a deeper magic hidden why bmode is done the way it is, or 
should I clean up my code and check it in ?

Thomas.

PS: No, stifb doesn't work on the HCRX24, yet. It gets initalized, but
still doesn't show anything.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Byte mode STI roms
Date: Thu, 14 Jun 2001 09:58:34 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:11340

Hi Thomas,

> I've played a little bit with the stifb on my C200 with a HCRX24 and got
> the stifb to recognize it as valid card. My approach was to just get rid
> of that funky STI_Uxx macros by copying the byte rom into memory and
> adjusting the offsets. This way sticon-wmode.c and sticon-bmode.c are
> nearly the same and with a little bit more tweaking I could get them
> merged.

Great !

> So is there a deeper magic hidden why bmode is done the way it is, or
> should I clean up my code and check it in ?

No, there is no real deeper magic the way it is done now. It's just, that the 
sti[wb]con code has already went through quite a number of development 
cycles. 
At the beginning both had the complete console-code in them with just some 
tweaks for the mode, now they are in a state where both files just provide 
callbacks for sticore.c.
And the real goal is to have both files merged in a clean manner. This is why 
I'm really interested to see your patch. But in any case I would like if you 
would send the patch to the list prior checking it in. 

> PS: No, stifb doesn't work on the HCRX24, yet. It gets initalized, but
> still doesn't show anything.

It's because the stifb code does not have any HCRX24 specific code in it yet. 
I'll look if I can add it today - it shouldn't be that much.

Greetings,
Helge




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Subject: [parisc-linux] Re: problem installing on HP735
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Hello all, 

I changed HW, still 735 Apollo, and finally succeeded in going through the
first install. I got O.S. with no problem but had to do a

debootstrap sid /target file:/instmnt/debian from shell, since installtion
procedure seemed to hang (more than 1.5 hr).
Then I made the system bootbale and rebooted....

boot starts but then I get a "can not create tty4" and then 

modprobe: modprobe can't locate module char-mayor-4  

for many times. 

Then 
init respawning too rapidly 

and finally everything hangs.
Rebooted in single user. /etc/fstab empty.
Inserted /, swap and proc , rebooted, but / is mounted in read-only...
Still get 
INIT RESPAWNING TOO RAPIDLY....

any help ?

Already Thanking you, 

Matteo

 




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: problem installing on HP735
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Xref: news.gmane.org gmane.linux.ports.parisc:11342

On Thu, Jun 14, 2001 at 03:35:07PM +0000, BOSCHINI@ICIL64.CILEA.IT wrote:
> Hello all, 
> 
> I changed HW, still 735 Apollo, and finally succeeded in going through the
> first install. I got O.S. with no problem but had to do a
> 
> debootstrap sid /target file:/instmnt/debian from shell, since installtion
> procedure seemed to hang (more than 1.5 hr).
> Then I made the system bootbale and rebooted....

Maybe you should have done 'configure base system' before reboot.

> boot starts but then I get a "can not create tty4" and then 
> 
> modprobe: modprobe can't locate module char-mayor-4  
> 
> for many times. 
> 
> Then 
> init respawning too rapidly 
> 
> and finally everything hangs.
> Rebooted in single user. /etc/fstab empty.
> Inserted /, swap and proc , rebooted, but / is mounted in read-only...
> Still get 
> INIT RESPAWNING TOO RAPIDLY....
> 
> any help ?

There are two /etc/inittab files used in install, sounds like you
are still running the first one.

Reboot with init=/bin/sh
mount -o remount,rw /dev/???? /
cd /etc
mv inittab inittab.inst
mv inittab.real inittab
sync
mount -o remount,ro /dev/???? /

Power off/on, and try to boot again.  Might come up, might not.  If
it does, then "dpkg-reconfigure base-config" might let you run the
second half of the install.

The reason you had problems running the install properly is probably
because the 735 has a PCX-T cpu, which is known to have problems with
GLIBC 2.2.1.

Richard





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From: Simeon Walker <sim@sbs.bangor.ac.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Kernel faults on boot
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Hi,
  I have just installed the from 0.9 ISO to a 712/80 (using the
sti kernel) and had the same problem. Modify the palo params and 
going into run level 1 works. I can then run all the services that
would have started at run level 2, it's actually the getty's
started by init that cause the crash.

I thought I'd try and compile my own kernel to see if that
had the same problem but have been unable to do so. First
I tried the apt-get'able kernel source and then I tried the
cvs version with the same problem. The error is:
   make: hppa-linux-gcc: Command not found
Is this because the kernel sources assume I'm cross compiling
whereas I'm actually trying to compile on the target machine
or am I missing some package? I've compiled kernels on 
debian x86 machines so I know what's usually required.

Any advice on either of these issues is appreciated

Regards,
Simeon

-- 
Simeon Walker,                      email: simeon@sbs.bangor.ac.uk
School of Biological Sciences,      phone: +44 (0)1248 383702
University of Wales, Bangor,        fax: +44 (0)1248 382569
Gwynedd, LL57 2UW, UK.              www: http://biology.bangor.ac.uk/




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Xref: news.gmane.org gmane.linux.ports.parisc:11344

On Thu, Jun 14, 2001 at 04:15:41PM +0100, Simeon Walker wrote:
> Hi,
>   I have just installed the from 0.9 ISO to a 712/80 (using the
> sti kernel) and had the same problem. Modify the palo params and 
> going into run level 1 works. I can then run all the services that
> would have started at run level 2, it's actually the getty's
> started by init that cause the crash.

Yes, it is fixed in our latest cvs source.

> I thought I'd try and compile my own kernel to see if that
> had the same problem but have been unable to do so. First
> I tried the apt-get'able kernel source and then I tried the
> cvs version with the same problem. The error is:
>    make: hppa-linux-gcc: Command not found
> Is this because the kernel sources assume I'm cross compiling
> whereas I'm actually trying to compile on the target machine
> or am I missing some package? I've compiled kernels on 
> debian x86 machines so I know what's usually required.

Yes, comes from arch/parisc/Makefile

CROSS_COMPILE := hppa-linux-

changing that to

CROSS_COMPILE :=

is one solution.  You do need to use our cvs kernel source at
the moment, we don't have parisc kernel patches in the archive
yet.

Richard





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On Thu, Jun 14, 2001 at 04:15:41PM +0100, Simeon Walker wrote:
> I thought I'd try and compile my own kernel to see if that
> had the same problem but have been unable to do so. First
> I tried the apt-get'able kernel source

don't do that -- we're not merged upstream.  ditto, don't do it for glibc,
gcc or gdb.  binutils should be OK, but no promises -- see some of the
recent breakages we've had.

> and then I tried the
> cvs version with the same problem. The error is:
>    make: hppa-linux-gcc: Command not found
> Is this because the kernel sources assume I'm cross compiling

that's right.  we're considering changing this.  it's a one-line
change in any case -- edit arch/parisc/Makefile and change
`CROSS_COMPILE=hppa-linux-' to `CROSS_COMPILE='

-- 
Revolutions do not require corporate support.




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From: Simeon Walker <simeon@sbs.bangor.ac.uk>
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Subject: Re: [parisc-linux] Re: Kernel faults on boot
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Richard Hirst wrote:
> 
> On Thu, Jun 14, 2001 at 04:15:41PM +0100, Simeon Walker wrote:
> > Hi,
> >   I have just installed the from 0.9 ISO to a 712/80 (using the
> > sti kernel) and had the same problem. Modify the palo params and
> > going into run level 1 works. I can then run all the services that
> > would have started at run level 2, it's actually the getty's
> > started by init that cause the crash.
> 
> Yes, it is fixed in our latest cvs source.
> 
Great, I've got that.

> > I thought I'd try and compile my own kernel to see if that
> > had the same problem but have been unable to do so. First
> > I tried the apt-get'able kernel source and then I tried the
> > cvs version with the same problem. The error is:
> >    make: hppa-linux-gcc: Command not found
> > Is this because the kernel sources assume I'm cross compiling
> > whereas I'm actually trying to compile on the target machine
> > or am I missing some package? I've compiled kernels on
> > debian x86 machines so I know what's usually required.
> 
> Yes, comes from arch/parisc/Makefile
> 
> CROSS_COMPILE := hppa-linux-
> 
> changing that to
> 
> CROSS_COMPILE :=
> 
Ahhhh!

> is one solution.  You do need to use our cvs kernel source at
> the moment, we don't have parisc kernel patches in the archive
> yet.
> 
> Richard

I'm compiling the kernel now so I'll see how it goes. It
certainly compiles slowly on this 712/80...

Thanks,
Simeon

-- 
Simeon Walker,                      email: simeon@sbs.bangor.ac.uk
School of Biological Sciences,      phone: +44 (0)1248 383702
University of Wales, Bangor,        fax: +44 (0)1248 382569
Gwynedd, LL57 2UW, UK.              www: http://biology.bangor.ac.uk/




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Subject: Re: [parisc-linux] Re: Kernel faults on boot
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Matthew Wilcox wrote:
> 
> On Thu, Jun 14, 2001 at 04:15:41PM +0100, Simeon Walker wrote:
> > I thought I'd try and compile my own kernel to see if that
> > had the same problem but have been unable to do so. First
> > I tried the apt-get'able kernel source
> 
> don't do that -- we're not merged upstream.  ditto, don't do it for glibc,
> gcc or gdb.  binutils should be OK, but no promises -- see some of the
> recent breakages we've had.
> 
so I guess an apt-get upgrade is not such a good thing at this 
point in time?

Thanks for the advice,
Simeon

-- 
Simeon Walker,                      email: simeon@sbs.bangor.ac.uk
School of Biological Sciences,      phone: +44 (0)1248 383702
University of Wales, Bangor,        fax: +44 (0)1248 382569
Gwynedd, LL57 2UW, UK.              www: http://biology.bangor.ac.uk/




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Subject: Re: [parisc-linux] Re: Kernel faults on boot
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Simeon Walker writes...

> Matthew Wilcox wrote:
> > 
> > On Thu, Jun 14, 2001 at 04:15:41PM +0100, Simeon Walker wrote:
> > > I thought I'd try and compile my own kernel to see if that
> > > had the same problem but have been unable to do so. First
> > > I tried the apt-get'able kernel source
> > 
> > don't do that -- we're not merged upstream.  ditto, don't do it for glibc,
> > gcc or gdb.  binutils should be OK, but no promises -- see some of the
> > recent breakages we've had.
> > 
> so I guess an apt-get upgrade is not such a good thing at this 
> point in time?

No, an apt-get upgrade should be fine. For packages where we differ from 
upstream one of the three cases apply,

1.) the hppa-linux changes have been integrated into the Debian package
2.) a special hppa only deb has been done(which may not be in the archive)
3.) that package doesn't exist in the Debian archive yet

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: Re: [parisc-linux] Re: Kernel faults on boot
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On Thu, Jun 14, 2001 at 05:24:42PM +0100, Simeon Walker wrote:
> so I guess an apt-get upgrade is not such a good thing at this 
> point in time?

Oh, no, that's fine.  Packages don't get uploaded for hppa until they
work.  So, for example, right now, there is no gdb in the debian archive,
only on puffin.external.hp.com until we get it integrated.  glibc 2.2.3-6
has been released, but in't compiled for hppa yet, so you won't get it.

-- 
Revolutions do not require corporate support.




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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HIL Keyboard mapping skript
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--------------Boundary-00=_2POXUQX5IH8IL2UYR6ZV
Content-Type: text/plain;
  charset="iso-8859-1"
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Subject: 

Hi,

for those of you who have a HIL keyboard attached to their systems (like on 
my 715/64) and use the STI kernel the following keyboard mapping could be 
interesting.
It allows you to switch to the virtual consoles via Alt-F1 to Alt-F7 and 
Alt-Left/Right the same way as you do it currently on your Intel-machine. 
More than that it also takes out some of the most ugly keyboard mappings 
which normally belong to HP PS/2 keyboards and does a bad thing on HIL.

BTW: 
- You will need to recompile yourself a new kernel to use virtual consoles...
- It's not complete and doesn't cover all keys. Esp. german umlauts and that 
like won't be fixed with this script.

Greetings,
Helge

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  name="keycodes.sh"
Content-Transfer-Encoding: base64
Content-Description: HIL keyboard mapping shell-script
Content-Disposition: attachment; filename="keycodes.sh"

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Hello all, 

I finally got the sysetm installed. 
I'll try now to setup FDDI networking.

Thanks to all, 
Matteo




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From - Thu Nov 08 21:18:05 2018
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From: Paul Bame <bame@fc.hp.com>
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Subject: Re: [parisc-linux] PALO/kernel-build change proposal
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= > I propose that 'make palo' be changed to simply run 'palo -f ./palo.conf'
= > after vmlinux is built.  This means palo would have to be in the $PATH
= > and that the top-level linux source directory would contain a
= > suitable palo.conf file.  I've been using this model for cross-compiling
= > for several months and like it.  I would document how xc-ers can best
= > compile and "install" palo as well as supply a palo.conf file with
= > our typical configurations.
= > 
= > What is 'make palo' today would be changed to 'make buildrunpalo'.  The
= > longer name is more truthful and less convenient on purpose.
= 
= 
= How about "make lifimage"?
= That's the only reason I run "make palo" in the XC environment.
= Having a XC-palo in the environment is no problem.
= In the XC env, I don't expect "make install" to do the right thing (tm).

ok, I ammend my proposal so that what I just described as 'make palo' be
changed to 'make lifimage', and that what I just called 'make buildrunpalo',
which jumps into the source tree and builds palo among other things, retain
the name buildrunpalo.  Howzzat?





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Subject: [parisc-linux] new g++/exceptions problem
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I built apt against the new exception-handling
compilers (pehc:~taggart/newcompilers-20010615)
and now all the apt utilities bus error right away.  This stuff can
be found installed on gsyprf11 built from ~bame/apt.  So far I know

!!die_if_kernel: apt-get(7797): Unaligned data reference 28

IAOQ: 000000004000ccab IIR: 0cc41280
ldd says this code in ld.so.1:

libapt-pkg-libc6.2-3.so.3.2 => /usr/lib/libapt-pkg-libc6.2-3.so.3.2 (0x4002b000)
libstdc++.so.3 => /usr/lib/libstdc++.so.3 (0x40120000)
libm.so.6 => /lib/libm.so.6 (0x40201000)
libc.so.6 => /lib/libc.so.6 (0x40291000)
/lib/ld.so.1 => /lib/ld.so.1 (0x40000000)

The offending code is:

0000c7a0 <_dl_relocate_object>:
...
    cbf8:       0a cc 0a 16     add,l r12,r22,r22
    cbfc:       0c a0 10 97     ldw  0(sr0,r5),r23
...
    cc04:       0c e0 10 94     ldw  0(sr0,r7),r20
...
    cc9c:       2a 60 00 00     addil 0,r19,%r1
    cca0:       48 21 0a f0     ldw 578(sr0,r1),r1
    cca4:       08 a1 28 80     cmpclr,= r1,r5,r0
--> cca8:       0c c4 12 80     stw  r4,0(sr0,r6)
    cc14:       0a 97 0a 06     add,l r23,r20,r6

r6 is 00000000401e51ee which refers to libstdc++ offset c51ee:

 16 .data         00002f2c  000c22b0  000c22b0  000b22b0  2**4
                  CONTENTS, ALLOC, LOAD, DATA
 17 .eh_frame     0001254c  000c51dc  000c51dc  000b51dc  2**2
                  CONTENTS, ALLOC, LOAD, DATA
 18 .gcc_except_table 0000298c  000d7728  000d7728  000c7728  2**2
                  CONTENTS, ALLOC, LOAD, DATA

so it's inside the exception-handler frame.  My wild guess is the
dynamic linker is trying to handle a new type of symbol which refers
to the new exception stuff which is for some reason not 4-byte
aligned, but this surely ain't my expertise area!

	-P




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= 
= I built apt against the new exception-handling

The following shows what appears to be the same problem:
$ cat hello.c
#include <stdio.h>
int main() {printf("hello world\n");}
$ g++ -o hello hello.c
$ ./hello
Bus error
$

which makes me think something in the C++ exception initialization is
the culprit -- another wild guess





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> I built apt against the new exception-handling
> compilers (pehc:~taggart/newcompilers-20010615)
> and now all the apt utilities bus error right away.  This stuff can

There is a known issue with gcc 3.0 and glibc:
<http://gcc.gnu.org/ml/gcc-bugs/2001-06/msg00770.html>.  It involves
the change in exception handling.  Possibly, this is what is bitting.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




From - Thu Nov 08 21:18:06 2018
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From: "Chris Christie" <info@wias.net.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] K-9000 Sim700 DUMP Configuring 53c710 scsi0 Revision 0x2 (HPMC)
Date: Sat, 16 Jun 2001 17:04:05 +1000
Organization: Wholesale Internet Access Services Australasia
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Any light that can be shed on my problem?

High Priority Machine Check (HPMC): Code 1

The machine is a K9000 PA8000 k-250


Make a WIASA decision today !

Wholesale Internet Access Services Australasia P/L ACN 096 011 511 =
BN17400545
148 Ipswich Road - Woolloongabba - Brisbane - 4102
GPO Box 949 Brisbane 4001
Tel: 07 3217 4103
Fax: 07 3217 3541 =20
Email: info@wias.net.au=20
Mob: 0417 375 196

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT size=3D2>Any light that can be shed on my =
problem?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>High Priority Machine Check (HPMC):</FONT><FONT =
size=3D2> Code=20
1</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>The machine is a K9000 PA8000 k-250</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Make a WIASA decision today !</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>Wholesale Internet Access Services Australasia P/L =
ACN 096 011=20
511 BN17400545<BR>148 Ipswich Road - Woolloongabba - Brisbane - =
4102<BR>GPO Box=20
949 Brisbane 4001<BR>Tel: 07 3217 4103<BR>Fax: 07 3217 3541&nbsp; =
<BR>Email: <A=20
href=3D"mailto:info@wias.net.au">info@wias.net.au</A> <BR>Mob: 0417 375=20
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From - Thu Nov 08 21:18:06 2018
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From: Scott Ashcroft <scott.ashcroft@talk21.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Extra serial port on B160L
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Just run up a freshly pulled from cvs kernel (2.4.0-pa25) on my B160L
and an extra serial port appears.
I take it this is due to the Dino serial port patch which is good but:

It appears as ttyS0 which means the console suddenly changed to ttyS1
(making me think things were broken).
Should it not appear after the Wax serial ports so as to cause least
surprise.

Where is this magical new serial port? I looked on the back of the box
and there are still only two serial connectors like there was last week
;-)

Cheers,
Scott

Relevant bits of old and new boot messages:

Linux version 2.4.0-pa10 (root@slab) (gcc version 3.0 20010315
(prerelease)) #1 Wed May 30 20:19:52 BST 2001
...
Searching for devices...
Found devices:
1. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0,
0x0, 0x0, 0x0
2. Merlin L2 160 (9000/778/B160L) (0) at 0xfffbe000, versions 0x502,
0x0, 0x4, 0x0, 0x81
3. Merlin 160/ThunderHawk Memory (1) at 0xfffbf000, versions 0x67, 0x0,
0x9, 0x0, 0x0
4. Merlin 160 Core BA (11) at 0xffd00000, versions 0x3d, 0x0, 0x81, 0x0,
0x0,  additional addresses: 0xffd0c000 0xffc00000
5. Merlin 160 Core RS-232 (10) at 0xffd05000, versions 0x3d, 0x0, 0x8c,
0x0, 0x0
6. Merlin 160 Core SCSI (10) at 0xffd06000, versions 0x3d, 0x0, 0x82,
0x0, 0x0
7. Merlin 160 Core Lan (802.3) (10) at 0xffd07000, versions 0x3d, 0x0,
0x8a, 0x0, 0x0
8. Merlin 160 Core Centronics (10) at 0xffd02000, versions 0x3d, 0x0,
0x74, 0x0, 0x0,  additional addresses: 0xffd01000 0xffd03000
9. Merlin 160 Core Audio (10) at 0xffd04000, versions 0x3d, 0x4, 0x7b,
0x0, 0x0
10. Merlin 160 Core PC Keyboard (10) at 0xffd08000, versions 0x3d, 0x0,
0x84, 0x0, 0x0
11. Merlin 160 Core PC Keyboard (10) at 0xffd08100, versions 0x3d, 0x0,
0x84, 0x0, 0x0
12. Merlin 160 Wax BA (11) at 0xffe00000, versions 0x41, 0x0, 0x8e, 0x0,
0x0
13. Merlin 160 Wax EISA BA (11) at 0xfc000000, versions 0x41, 0x0, 0x90,
0x0, 0x0,  additional addresses: 0xf0184000
14. Merlin 160 Wax HIL (10) at 0xffe01000, versions 0x41, 0x0, 0x73,
0x0, 0x0
15. Merlin 160 Wax RS-232 (10) at 0xffe02000, versions 0x41, 0x0, 0x8c,
0x0, 0x0
16. Gecko GSC Core Graphics (10) at 0xf8000000, versions 0x16, 0x0,
0x85, 0x0, 0x0,  additional addresses: 0xf0011000
17. Dino PCI Bridge (13) at 0xfff80000, versions 0x680, 0x1, 0xa, 0x0,
0x0
18. Merlin+ 132 Dino PS2 Keyboard (10) at 0xfff81000, versions 0x22,
0x0, 0x96, 0x0, 0x0
19. Merlin+ 132 Dino RS-232 (10) at 0xfff83000, versions 0x22, 0x0,
0x8c, 0x0, 0x0
...
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
ttyS00 at iomem 0xffd05800 (irq = 90) is a 16550A
ttyS01 at iomem 0xffe02800 (irq = 121) is a 16550A
busdevice_alloc_irq(0x102d0634): No known LASI/ASP/WAX owns device at
0xfff83000 !

Linux version 2.4.0-pa25 (root@nelson) (gcc version 3.0 20010426 (Debian
prerelease)) #2 Sat Jun 16 21:06:07 BST 2001
...
Searching for devices...
Found devices:
1. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0,
0x0, 0x0, 0x0
2. Merlin L2 160 (9000/778/B160L) (0) at 0xfffbe000, versions 0x502,
0x0, 0x4, 0x0, 0x81
3. Merlin 160/ThunderHawk Memory (1) at 0xfffbf000, versions 0x67, 0x0,
0x9, 0x0, 0x0
4. Merlin 160 Core BA (11) at 0xffd00000, versions 0x3d, 0x0, 0x81, 0x0,
0x0,  additional addresses: 0xffd0c000 0xffc00000 
5. Merlin 160 Core RS-232 (10) at 0xffd05000, versions 0x3d, 0x0, 0x8c,
0x0, 0x0
6. Merlin 160 Core SCSI (10) at 0xffd06000, versions 0x3d, 0x0, 0x82,
0x0, 0x0
7. Merlin 160 Core Lan (802.3) (10) at 0xffd07000, versions 0x3d, 0x0,
0x8a, 0x0, 0x0
8. Merlin 160 Core Centronics (10) at 0xffd02000, versions 0x3d, 0x0,
0x74, 0x0, 0x0,  additional addresses: 0xffd01000 0xffd03000 
9. Merlin 160 Core Audio (10) at 0xffd04000, versions 0x3d, 0x4, 0x7b,
0x0, 0x0
10. Merlin 160 Core PC Keyboard (10) at 0xffd08000, versions 0x3d, 0x0,
0x84, 0x0, 0x0
11. Merlin 160 Core PC Keyboard (10) at 0xffd08100, versions 0x3d, 0x0,
0x84, 0x0, 0x0
12. Merlin 160 Wax BA (11) at 0xffe00000, versions 0x41, 0x0, 0x8e, 0x0,
0x0
13. Merlin 160 Wax EISA BA (11) at 0xfc000000, versions 0x41, 0x0, 0x90,
0x0, 0x0,  additional addresses: 0xf0184000 
14. Merlin 160 Wax HIL (10) at 0xffe01000, versions 0x41, 0x0, 0x73,
0x0, 0x0
15. Merlin 160 Wax RS-232 (10) at 0xffe02000, versions 0x41, 0x0, 0x8c,
0x0, 0x0
16. Gecko GSC Core Graphics (10) at 0xf8000000, versions 0x16, 0x0,
0x85, 0x0, 0x0,  additional addresses: 0xf0011000 
17. Dino PCI Bridge (13) at 0xfff80000, versions 0x680, 0x1, 0xa, 0x0,
0x0
18. Merlin+ 132 Dino PS2 Keyboard (10) at 0xfff81000, versions 0x22,
0x0, 0x96, 0x0, 0x0
19. Merlin+ 132 Dino RS-232 (10) at 0xfff83000, versions 0x22, 0x0,
0x8c, 0x0, 0x0
...
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
ttyS00 at iomem 0xfff83800 (irq = 138) is a 16550A
ttyS01 at iomem 0xffd05800 (irq = 90) is a 16550A
ttyS02 at iomem 0xffe02800 (irq = 121) is a 16550A




From - Thu Nov 08 21:18:06 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Extra serial port on B160L
Date: Sun, 17 Jun 2001 01:41:18 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:11359

On Sat, Jun 16, 2001 at 10:41:36PM +0100, Scott Ashcroft wrote:
> Just run up a freshly pulled from cvs kernel (2.4.0-pa25) on my B160L
> and an extra serial port appears.
> I take it this is due to the Dino serial port patch which is good but:
> 
> It appears as ttyS0 which means the console suddenly changed to ttyS1
> (making me think things were broken).

Known problem, it will be fixed on Monday.  Caused me much
confusion too.

Thanks for the report,

Richard





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From: Alan Modra <amodra@bigpond.net.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: new g++/exceptions problem
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Xref: news.gmane.org gmane.linux.ports.parisc:11360

On Fri, Jun 15, 2001 at 06:50:36PM -0600, Paul Bame wrote:
> 
> so it's inside the exception-handler frame.  My wild guess is the
> dynamic linker is trying to handle a new type of symbol which refers
> to the new exception stuff which is for some reason not 4-byte
> aligned

Yes, the new exception code puts R_PARISC_DIR32 relocs at unaligned
addresses.  "objdump -r libstdc++.so" reveals

Relocation section '.rela.eh_frame' at offset 0x37024 contains 1611 entries:
  Offset    Info  Type            Symbol's Value  Symbol's Name          Addend
  000c167e  4da01 R_PARISC_DIR32        00056914  __gxx_personality_v0      + 0
  000c1690  00d01 R_PARISC_DIR32        0003fe40  .text                     + 5114
  000c1699  01301 R_PARISC_DIR32        000cede4  .gcc_except_table         + 0
etc.

Seems like a change in the dynamic linker is needed to handle this
situation.  Something like the following should do it for you.

--- sysdeps/hppa/dl-machine.h~	Sun Jun 17 15:03:59 2001
+++ sysdeps/hppa/dl-machine.h	Sun Jun 17 15:05:11 2001
@@ -536,7 +536,16 @@
       if (map == &_dl_rtld_map)
 	return;
 #endif
-      /* Otherwise, nothing more to do here. */
+      /* .eh_frame can have unaligned relocs.  */
+      if (reloc_addr & 3)
+	{
+	  char *rel_addr = (char *) reloc_addr;
+	  rel_addr[0] = value >> 24;
+	  rel_addr[1] = value >> 16;
+	  rel_addr[2] = value >> 8;
+	  rel_addr[3] = value >> 0;
+	  return;
+	}
       break;
 
     case R_PARISC_PLABEL32:




From - Thu Nov 08 21:18:06 2018
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: [parisc-linux] XFree86, sti bmode/wmode merge
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Xref: news.gmane.org gmane.linux.ports.parisc:11361

Hi,

I've greped the mailinglist archive, and didn't find anything, that someone
tried the Xfree86 server on parisc. So I did it and to my great surprise
it worked out of the box with stifb (ok, I had to tweak XF86Config a little
bit). Right now the gecko (712/80) to my right display a more of less
ugly Xserver with two Xterms and vtwm as window manager. That's pretty
cool.

I've finished merging byte and word mode sti rom handling and will check that 
in after the checkout is finished (pretty slow connection to pehc at the 
moment). STIfb still works in word mode (the gecko mentioned above runs 
the merged code) and I had a working fbcon on the C200 with a HCRX24 
yesterday. But there are still problems to solve with the HCRX (colors 
were wrong, right now it doesn't work anymore).

Question: I've found the cfb stuff for HP framebuffers in Xfree, but it
doesn't cover the Visualize-EG hardware. Any chance to get docs/code for 
that beast ? I'd like to show a B180 with X on LinuxTag in Stuttgart :-)

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] PALO/kernel-build change proposal
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Grant Grundler said:
> Paul Bame wrote:
> > When self hosted, there's usually no need to run palo after every
> > kernel build since palo boots out of the file system by file name.
> > So I propose that the common self-hosted use model be to use simple
> > 'make' in the kernel tree [and make modules or whatever].  The
> > resulting 'vmlinux' file can then be copied to the desired location.
> 
> On x86, "make install" will do all the right things to install the
> freshly built kernel but doesn't do a damn thing for kernel modules.
> Need to run "make modules" and "make modules_install" to really make
> sure eveything is in sync.

As a Debian user I discovered the wonders of Manoj's kernel-package
suite to build Debian packages of kernel source/headers/image/docs from
a single kernel tree.  Certainly much easier to install the resulting
kernel-image-*.deb package than fuss about with the various Makefile
targets.  I suppose it would be unfriendly though to ask that this
become the standard means of building and installing hppa-linux kernels?

=)

I see nothing wrong with Paul's suggestion but hope that kernel-package
is educated about the changes for the hppa architecture.  I've grown
fond of it (or too lazy to go back?) ...

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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> > Paul Bame wrote:
> > > When self hosted, there's usually no need to run palo after every
> > > kernel build since palo boots out of the file system by file name.
> > > So I propose that the common self-hosted use model be to use simple
> > > 'make' in the kernel tree [and make modules or whatever].  The
> > > resulting 'vmlinux' file can then be copied to the desired location.
> >
> Grant Grundler said:
> > On x86, "make install" will do all the right things to install the
> > freshly built kernel but doesn't do a damn thing for kernel modules.
> > Need to run "make modules" and "make modules_install" to really make
> > sure eveything is in sync.
>
> Andrew Shugg <andrew@neep.com.au>
> As a Debian user I discovered the wonders of Manoj's kernel-package
> suite to build Debian packages of kernel source/headers/image/docs from
> a single kernel tree.  Certainly much easier to install the resulting
> kernel-image-*.deb package than fuss about with the various Makefile
> targets.  I suppose it would be unfriendly though to ask that this
> become the standard means of building and installing hppa-linux kernels?

(ObDisclaimer: I'm closer to 'user' than to 'developer', much closer...)

Working with this HP715 hasn't been too bad - very similar to early Debian
on the Intel boxes. Lots of support via mailing lists, weird docs, strange
ways of making things work... My only complaint on building a kernel was
the docs at ESIEE. Lots of 'download and configure this, then this, now
this...", which is fine, but they end with "Congrats - your new kernel is
palo/lifimage" and no comment on where it goes...

I don't suppose someone has an updated how-to for actually *using* your
new kernel, do they? Replacing /boot/vmlinux-2.4.0 with the new one
results in an immediate hang on reboot...





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From: "Bryan W. Headley" <bheadley@interaccess.com>
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Subject: [parisc-linux] Booting up C110
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    Wasn't getting too far using the STI console, so I switched to the 
serial console at the boot monitor. Sadly, no text appears on my 
laptop-based "terminal", connected with null-modem cable. Also, the 
unit's doesn't appear to respond to the built-in keyboard, either.

So, 1) how do I reset the boot PROM to use the graphics card/monitor again?
2) Any help on getting 0.9 or any other kernel booting would be a great 
help...

(It has booted, to the point of displaying kernel sign-on messages, then 
complaining about not being able to allocate a console, so I know things 
"sort-of" work)

-- 
____               .:.                 ____
Bryan W. Headley - bheadley@interaccess.com






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From: "Chris Christie" <info@wias.net.au>
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Subject: [parisc-linux] Booting up C200 Visualize same output as C110
Date: Mon, 18 Jun 2001 05:18:53 +1000
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This is a multi-part message in MIME format.

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Almost there! :)

C200 Visualize appears to halt with the following output..........

NET4: Unix Domain sockets 1.0/SMP for Linux Net4.0.
VFS Mounted root (ext2 file system).
Warning: unable to open initial console.
loop: enabling 8 loop devices

The device appears to halt at this point.

I am using IPL to configure the Console setting to remove the console =
setting all together as I get stack dumps if I keep the statement:

Console=3DttyXXX

I remove this statement and the boot process happens without dumping =
however the system is hanging for some reason.
Maybe Grant could shed some light on this except Grant requires:

"Need console output and PIM "Tombstone".
PIM "tombstone" can be aquired by interrupting autoboot
at the PDC prompt and typing "ser pim".

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253"

Greater problems exist amongst the k-250 and k-260 cluster , however
I have no print solutions currently in the network for posting the =
problems to the list.

Hopefully Bryan can help by post his results to the list or at least for =
Grant to have a look at it?


Make a WIASA decision today !

Wholesale Internet Access Services Australasia P/L ACN 096 011 511 =
BN17400545
148 Ipswich Road - Woolloongabba - Brisbane - 4102
GPO Box 949 Brisbane 4001
Tel: 07 3217 4103
Fax: 07 3217 3541 =20
Email: info@wias.net.au=20
Mob: 0417 375 196

Visit our web site at http://www.wias.net.au

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2919.6307" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT size=3D2>Almost there! :)</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>C200 Visualize appears to halt with the following=20
output.</FONT><FONT size=3D2>.........</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>NET4: Unix Domain sockets 1.0/SMP for Linux=20
Net4.0.</FONT></DIV>
<DIV><FONT size=3D2>VFS Mounted root (ext2 file system).</FONT></DIV>
<DIV><FONT size=3D2>Warning: unable to open initial =
console.</FONT></DIV>
<DIV><FONT size=3D2>loop: enabling 8 loop devices</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>The device appears to halt at this =
point.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>I am using IPL to configure the Console setting to =
remove the=20
console setting all together as I get stack dumps if I keep the=20
statement:</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Console=3DttyXXX</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>I remove this statement and the boot process happens =
without=20
dumping however the system is hanging for some reason.</FONT></DIV>
<DIV><FONT size=3D2>Maybe Grant could shed some light on this except =
Grant=20
requires:</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>"Need console output and PIM "Tombstone".<BR>PIM =
"tombstone"=20
can be aquired by interrupting autoboot<BR>at the PDC prompt and typing =
"ser=20
pim".<BR><BR>grant<BR><BR>Grant Grundler<BR>parisc-linux {PCI|IOMMU|SMP} =

hacker<BR>+1.408.447.7253"</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Greater problems exist amongst the k-250 and k-260 =
cluster ,=20
however</FONT></DIV>
<DIV><FONT size=3D2>I have no print solutions currently in the network =
for posting=20
the problems to the list.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>Hopefully Bryan can help by post his results to the =
list or at=20
least for Grant to have a look at it?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>Make a WIASA decision today !</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>Wholesale Internet Access Services Australasia P/L =
ACN 096 011=20
511 BN17400545<BR>148 Ipswich Road - Woolloongabba - Brisbane - =
4102<BR>GPO Box=20
949 Brisbane 4001<BR>Tel: 07 3217 4103<BR>Fax: 07 3217 3541&nbsp; =
<BR>Email: <A=20
href=3D"mailto:info@wias.net.au">info@wias.net.au</A> <BR>Mob: 0417 375=20
196</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>Visit our web site at <A=20
href=3D"http://www.wias.net.au">http://www.wias.net.au</A></FONT></DIV></=
BODY></HTML>

------=_NextPart_000_004B_01C0F7B6.2A2EE9C0--





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Subject: Re: [parisc-linux] PALO/kernel-build change proposal
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On Sun, Jun 17, 2001 at 11:03:19PM +0800, Andrew Shugg wrote:
> Grant Grundler said:
> As a Debian user I discovered the wonders of Manoj's kernel-package
> suite to build Debian packages of kernel source/headers/image/docs from
> a single kernel tree.  Certainly much easier to install the resulting
> kernel-image-*.deb package than fuss about with the various Makefile
> targets.  I suppose it would be unfriendly though to ask that this
> become the standard means of building and installing hppa-linux kernels?
> 
> =)
> 
> I see nothing wrong with Paul's suggestion but hope that kernel-package
> is educated about the changes for the hppa architecture.  I've grown
> fond of it (or too lazy to go back?) ...

The changes required for kernel-package have been submitted to Manoj...

-- 
Revolutions do not require corporate support.




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On Sun, 17 Jun 2001, Tom wrote:

> I don't suppose someone has an updated how-to for actually *using* your
> new kernel, do they? Replacing /boot/vmlinux-2.4.0 with the new one
> results in an immediate hang on reboot...
>

*shrug*
Well, I've made two successful kernels, cp'd to /boot, edited
/etc/palo.conf, just like normal to me.

--
 Ed June

 buggz@america.net
 Linux: An open choice for free people worldwide.






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From: Tom <tom@Alaskatech.org>
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Subject: Re: [parisc-linux] PALO/kernel-build change proposal
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> > I don't suppose someone has an updated how-to for actually *using* your
> > new kernel, do they? Replacing /boot/vmlinux-2.4.0 with the new one
> > results in an immediate hang on reboot...
>
> *shrug*
> Well, I've made two successful kernels, cp'd to /boot, edited
> /etc/palo.conf, just like normal to me.

Hmmm... I tried that - copied lifimage to /boot/vmlinux-240-pa15, edited
/etc/palo.conf to change the kernel listed, then ran palo to update it and
rebooted. Same error - can't understand the kernel executable format.

Am wondering if perhaps it's me goofing it up rather than the system.
(Actually am pretty certain it's me, since other people can compile
kernels fine...)

Time to try again!





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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] PALO/kernel-build change proposal
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On Sun, Jun 17, 2001 at 05:05:20PM -0800, Tom wrote:
> > > I don't suppose someone has an updated how-to for actually *using* your
> > > new kernel, do they? Replacing /boot/vmlinux-2.4.0 with the new one
> > > results in an immediate hang on reboot...
> >
> > *shrug*
> > Well, I've made two successful kernels, cp'd to /boot, edited
> > /etc/palo.conf, just like normal to me.
> 
> Hmmm... I tried that - copied lifimage to /boot/vmlinux-240-pa15, edited
> /etc/palo.conf to change the kernel listed, then ran palo to update it and
> rebooted. Same error - can't understand the kernel executable format.

Sounds like you're using the lifimage instead of the vmlinux.

-- 
Revolutions do not require corporate support.




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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] Unaligned trap handler - comments appreciated
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I just checked in an arch/parisc/kernel/unaligned.c file into palinux
cvs.

It's my (not-yet-successful) attempt at putting together an unaligned
memory access handler for palinux.

Since I'm not really familiar with how this is "supposed" to be done, I
would really appreciate if folks more in the know can review the code
and let me know if i'm on the right track, or if i'm smoking something
funny :-)

I haven't checked in the (simple, obvious) hook in traps.c that calls
the unaligned handler since it isn't working yet.

thanks for your patience :)
randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Matteo Boschini <boschini@cilea.it>
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Subject: [parisc-linux] FDDI on 735/99
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Hello all, 

this is probably a dumb question, but I'm really stuck.
I have a 735 Apollo/99 on which I finally installed what seems a
reasonably stable kernel.
machine has only fddi net card. 
At boot, system detects Outfiled FDDI, which seems to be supported as from
http://216.208.98.4/view.php3?type=devicetype&name=Foreign%20I%2FO%20Module

I have compiled the kernel without seeing anything about FDDI. 

What am I supposed to now ?

Net-Card has nothing peculiar printed on it, I hust see 

hp F/O XVCR 9310
HFBR-5125 OPT OFS

Any help ?

Already thanks, 

Matteo
 





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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting up C110
Date: Mon, 18 Jun 2001 04:25:53 -0600
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"Bryan W. Headley" wrote:
>     Wasn't getting too far using the STI console, so I switched to the 
> serial console at the boot monitor. Sadly, no text appears on my 
> laptop-based "terminal", connected with null-modem cable. Also, the 
> unit's doesn't appear to respond to the built-in keyboard, either.

You should be able to get output from the serial port 1 when the
keyboard/mouse are disconnected. At least all the workstations I know of
work that way...You didn't need to change the console/keyboard path
at te PDC prompt.

> So, 1) how do I reset the boot PROM to use the graphics card/monitor again?

You don't until you get serial working and point the console path back
at the graphics(2) (or whatever it's called).

> 2) Any help on getting 0.9 or any other kernel booting would be a great 
> help...

32-bit/serial kernel should just boot. Bug in ccio might cause problems
installing from CD.

> (It has booted, to the point of displaying kernel sign-on messages, then 
> complaining about not being able to allocate a console, so I know things 
> "sort-of" work)

I'll assume that's with sticon.  I expect serial console to work better.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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> So, 1) how do I reset the boot PROM to use the graphics card/monitor
> again?

I'm in the same boat... before I got the sti stuff, I tried the serial port 
and now don't get any output (mostly due to dud nullmodem 
connections on the HP box.. it's far too recessed to use with 
"normal" serial connctions).... so if you get an answer to this, 
please let me know too.. might work on my 715.





Pete
=====
testing? What's that? If it compiles, it is good, 
if it boots up it is perfect.

--- Linus Torvalds
http://www.ao.com/~regan/quotes/Linux.html
==============




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Booting up C200 Visualize same output as C110
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"Chris Christie" wrote:
...
> C200 Visualize appears to halt with the following output..........
> 
> NET4: Unix Domain sockets 1.0/SMP for Linux Net4.0.
> VFS Mounted root (ext2 file system).
> Warning: unable to open initial console.
> loop: enabling 8 loop devices
> 
> The device appears to halt at this point.

Press the TOC button.
Interrupt the PDC autoboot.
"ser pim" should print the system state when the TOC button was pushed.

> 
> I am using IPL to configure the Console setting to remove the console =
> setting all together as I get stack dumps if I keep the statement:
> 
> Console=3DttyXXX
> 
> I remove this statement and the boot process happens without dumping =
> however the system is hanging for some reason.

Sorry - I don't know much about how console actually works.
I've managed to avoid that mess pretty well... :^)

> Maybe Grant could shed some light on this except Grant requires:
> 
> "Need console output and PIM "Tombstone".
> PIM "tombstone" can be aquired by interrupting autoboot
> at the PDC prompt and typing "ser pim".

Right. That's  true for any problem where the system just locks up.
Capturing serial console output should be pretty trivial.


grant

ps. please don't post the html copy of your mail. I'm getting
   both ascii and html versions of your mail.

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Matteo Boschini wrote:
> 
> Hello all, 
> 
> this is probably a dumb question, but I'm really stuck.
> I have a 735 Apollo/99 on which I finally installed what seems a
> reasonably stable kernel.
> machine has only fddi net card. 
> At boot, system detects Outfiled FDDI, which seems to be supported as from
> http://216.208.98.4/view.php3?type=devicetype&name=Foreign%20I%2FO%20Module

I don't think anyone has actually tested any sort of FDDI for parisc-linux.
Much less one for GSC (which is what I expect the 735 to accept.)

> I have compiled the kernel without seeing anything about FDDI. 

I don't expect any driver to support the GSC FDDI card without modfications.
You might need to look at how GSC SCSI (Zalon driver)
support works to get an idea of what needs to be done.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Tom <tom@Alaskatech.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting up C110
Date: Mon, 18 Jun 2001 06:04:41 -0800 (AKDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:11376

On Mon, 18 Jun 2001, Pete wrote:
> > So, 1) how do I reset the boot PROM to use the graphics card/monitor
> > again?
>
> I'm in the same boat... before I got the sti stuff, I tried the serial port
> and now don't get any output (mostly due to dud nullmodem
> connections on the HP box.. it's far too recessed to use with
> "normal" serial connctions).... so if you get an answer to this,
> please let me know too.. might work on my 715.

My 715/100 was set using "path con graphics.1" at the boot menu. Once I
found a null modem cable that fit the port on the 715 I used HyperTerminal
on a Win2K box (set to 9600/8/n/1) and it booted right up...





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From: "Hernando Orozco" <hernandoo@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Burning a CD image ?
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Xref: news.gmane.org gmane.linux.ports.parisc:11377

I've downloaded the 32bit Install ISO (STI), but it is .gz. (zip file). I'm 
working on windows and I want to know what should I do to create the cd 
image. The recording program is Easy Cd Creator.
I've tryed to uncompress the file with winzip, but it brings up an error.
What should I do ?

Thanks for your time.

Hernando
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.





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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] Burning a CD image ?
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Xref: news.gmane.org gmane.linux.ports.parisc:11378

Hernando Orozco said:
> I've downloaded the 32bit Install ISO (STI), but it is .gz. (zip file). I'm 
> working on windows and I want to know what should I do to create the cd 
> image. The recording program is Easy Cd Creator.
> I've tryed to uncompress the file with winzip, but it brings up an error.
> What should I do ?

A bit off-topic, but hopefully this will set you straight:

If you've downloaded it correctly (ie the file is intact, and not
transferred in ASCII mode or some other silly mistake) then WinZip
_should_ be able to open the .gz file.  (gz is gzip, not zip.)

Around and about the place one can find useful tools like gzip.exe (gzip
for DOS/Win32) and md5sum.exe (md5sum program).  The md5sum program can
be found on any Debian FTP mirror site in the "tools" directory.  You
can use that to compare the md5 checksum of the iso.gz file against the
ones on the master site.  If you find a gzip.exe you can test the file
directly with 'gzip -tv file.iso.gz' - if it comes up with anything
other than 'OK' then you'll need to download the file again.

Once you have a valid .gz file and have extracted the .iso file, you
can then burn it to CD with pretty much any CDR software, as the file is
a standard ISO9660 image.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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From: E Frank Ball <frankb@efball.com>
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Subject: Re: [parisc-linux] Booting up C110
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Xref: news.gmane.org gmane.linux.ports.parisc:11379

On Mon, Jun 18, 2001 at 07:56:21PM +1000, Pete wrote:
}  
} > So, 1) how do I reset the boot PROM to use the graphics card/monitor
} > again?
} 
} I'm in the same boat... before I got the sti stuff, I tried the serial port 
} and now don't get any output (mostly due to dud nullmodem 
} connections on the HP box.. it's far too recessed to use with 
} "normal" serial connctions).... so if you get an answer to this, 
} please let me know too.. might work on my 715.

Have you guys tried removing the battery to reset it?

-- 

   E Frank Ball                efball@efball.com




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] 2.4.4 PCI FBB
Date: Mon, 18 Jun 2001 12:05:19 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:11380

Hi Ivan, Jeff,

Appended is the 2.4.4 patch for PCI Fast Back-Back (FBB) support.
Could you please review/comment on it?

Some caveats/notes:
o Since I'm on the road (visiting relatives in Germany mostly, currently
  in Zurich), I'm only able to verify it boots on my Omnibook 800.
  PA-RISC port is still based on 2.4.0 so I can't test there.
  My lxr8000 (in Cupertino) doesn't reboot remotely reliably.
  Consider this a first cut.

o I've added logic to pull the secondary PCI bus out of reset properly
  in case the PCI-PCI bridge not been initialized by BIOS.
  This was implicitly happening before in pci_setup_bridge().
  The OB800 has a *broken* VLSI PCI-PCI bridge onboard with respect
  to the BUS_RESET bit - see the "KLUGE ALERT".

o "lspci" segfaults on the OB800. I don't know why.
  I don't think it's related to any changes I've made. I'm running
  debian "unstable" and haven't been able to update in several weeks.
  If it persists after an update, then I'll chase it.

o Ivan proposed pcibios_set_bridge_ctl(); I used "pcibios_init_bus()".
  The calling location in pci_do_scan_bus() seemed like a per-bus
  initialization point rather than a narrow/specific task.
  I'd like to make use of pcibios_init_bus() in the parisc port.
  I've only modified arch/i386 to provide pcibios_init_bus().

o For each secondary bus, pci_setup_bridge() gets called before
  pcibios_init_bus().  The former handles generic PCI-PCI bridge and the
  later deals with arch specific (eg Host-PCI bridge) stuff. However
  the difference is on the primary bus - only pcibios_init_bus() is called.
  FWIW, PA-RISC host-PCI bridges support FBB and I would like to add support
  to enable FBB on the primary busses (yes - plural!).

o I intentionally put all FBB support in pci_setup_bridge() (arch common).
  FBB could also live in the arch specific location (pcibios_init_bus())
  but then that gets replicated for each arch. Not sure if that's a
  problem or not. The trade off is how arch code interacts with common
  code for FBB support on the primary bus(ses).

thanks!
grant



--- 2.4.4-orig/arch/i386/kernel/pci-i386.c	Mon Aug  7 14:31:40 2000
+++ 2.4.4/arch/i386/kernel/pci-i386.c	Sun Jun 17 02:30:29 2001
@@ -324,6 +324,11 @@ int pcibios_enable_resources(struct pci_
 	}
 	if (dev->resource[PCI_ROM_RESOURCE].start)
 		cmd |= PCI_COMMAND_MEMORY;
+
+	/* If bridge/bus controller has FBB enabled, child must too. */
+	if (dev->bus->bridge_ctl & PCI_BRIDGE_CTL_FAST_BACK)
+		cmd |= PCI_COMMAND_FAST_BACK;
+
 	if (cmd != old_cmd) {
 		printk("PCI: Enabling device %s (%04x -> %04x)\n", dev->slot_name, old_cmd, cmd);
 		pci_write_config_word(dev, PCI_COMMAND, cmd);
--- 2.4.4-orig/arch/i386/kernel/pci-pc.c	Thu Apr 19 22:57:06 2001
+++ 2.4.4/arch/i386/kernel/pci-pc.c	Sun Jun 17 02:46:26 2001
@@ -11,6 +11,7 @@
 #include <linux/pci.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
+#include <linux/delay.h>
 
 #include <asm/segment.h>
 #include <asm/io.h>
@@ -1015,6 +1016,29 @@ struct pci_fixup pcibios_fixups[] = {
 };
 
 /*
+ * Called before each bus is probed. Allows us to tweak struct pci_bus *.
+ */
+void __init pcibios_init_bus(struct pci_bus *b)
+{
+	struct pci_dev *dev = b->self;
+
+	/* If host PCI bridge supports FBB, could add support here and
+	** in pcibios_fixup_bus(). For the moment, hope the BIOS is
+	** smart enough to take advantage of FBB.
+	*/
+
+	/* don't forward all "ISA" IO addresses */
+	if (dev && (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
+		&& ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)
+		&& !(b->bridge_ctl | PCI_BRIDGE_CTL_NO_ISA) )
+	{
+		b->bridge_ctl |= PCI_BRIDGE_CTL_NO_ISA;
+		pci_write_config_word(dev, PCI_BRIDGE_CONTROL, b->bridge_ctl);
+	}
+}
+
+
+/*
  *  Called after each bus is probed, but before its children
  *  are examined.
  */
@@ -1023,6 +1047,11 @@ void __init pcibios_fixup_bus(struct pci
 {
 	pcibios_fixup_ghosts(b);
 	pci_read_bridge_bases(b);
+
+	/* if any i386 PCI host bus adapters support FBB, test FBB bit
+	** in b->bridge_ctl (dis-) enable FBB in the host bus adapter.
+	** Also look at comments in pcibios_init_bus().
+	*/
 }
 
 /*
--- 2.4.4-orig/drivers/pci/pci.c	Thu Apr 19 08:38:48 2001
+++ 2.4.4/drivers/pci/pci.c	Sun Jun 17 03:06:58 2001
@@ -36,6 +36,7 @@
 
 LIST_HEAD(pci_root_buses);
 LIST_HEAD(pci_devices);
+unsigned int pci_post_reset_delay = 50;	/* spec says 1sec but this works */
 
 /**
  * pci_find_slot - locate PCI device from a given PCI slot
@@ -978,9 +979,17 @@ static int __init pci_scan_bridge(struct
 		}
 	} else {
 		/*
-		 * We need to assign a number to this bus which we always
-		 * do in the second pass. We also keep all address decoders
-		 * on the bridge disabled during scanning.  FIXME: Why?
+		 * Assign a number to this bus.  Disable all address
+		 * decoders on the bridge during scanning since we don't
+		 * want unprogrammed or wrongly programmed I/O window
+		 * registers to forward *any* transactions. We can't
+		 * (re-) program the window registers until we know the
+		 * resources needed by devices below this bridge.
+		 *
+		 * NOTE: disabling window registers will prevent BIOS or
+		 * drivers from talking to console/boot devices behind
+		 * the bridge! (ie DBG output won't happen - may hang
+		 * machine depending on arch)
 		 */
 		if (!pass)
 			return max;
@@ -997,6 +1006,7 @@ static int __init pci_scan_bridge(struct
 		 * We need to blast all three values with a single write.
 		 */
 		pci_write_config_dword(dev, PCI_PRIMARY_BUS, buses);
+
 		if (!is_cardbus) {
 			/* Now we can scan all subordinate buses... */
 			max = pci_do_scan_bus(child);
@@ -1046,6 +1056,7 @@ static void pci_read_irq(struct pci_dev 
 int pci_setup_device(struct pci_dev * dev)
 {
 	u32 class;
+	unsigned short status;
 
 	sprintf(dev->slot_name, "%02x:%02x.%d", dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
 	sprintf(dev->name, "PCI device %04x:%04x", dev->vendor, dev->device);
@@ -1093,6 +1104,11 @@ int pci_setup_device(struct pci_dev * de
 		dev->class = PCI_CLASS_NOT_DEFINED;
 	}
 
+	/* FBB capability - if not, clear bit in parent bridge_ctl.  */
+	pci_read_config_word(dev, PCI_STATUS, &status);
+	if (0 == (status & PCI_STATUS_FAST_BACK))
+		dev->bus->bridge_ctl &= ~PCI_BRIDGE_CTL_FAST_BACK;
+
 	/* We found a fine healthy device, go go go... */
 	return 0;
 }
@@ -1174,6 +1190,8 @@ static unsigned int __init pci_do_scan_b
 	unsigned int devfn, max, pass;
 	struct list_head *ln;
 	struct pci_dev *dev, dev0;
+
+	pcibios_init_bus(bus);
 
 	DBG("Scanning bus %02x\n", bus->number);
 	max = bus->secondary;
--- 2.4.4-orig/drivers/pci/setup-bus.c	Mon Dec 11 13:46:26 2000
+++ 2.4.4/drivers/pci/setup-bus.c	Sun Jun 17 03:22:27 2001
@@ -127,9 +127,12 @@ pci_setup_bridge(struct pci_bus *bus)
 	struct pbus_set_ranges_data ranges;
 	struct pci_dev *bridge = bus->self;
 	u32 l;
+	unsigned short cap;
+	int need_post_reset_delay;
 
-	if (!bridge || (bridge->class >> 8) != PCI_CLASS_BRIDGE_PCI)
+	if (!bridge || (bridge->foclass >> 8) != PCI_CLASS_BRIDGE_PCI)
 		return;
+
 	ranges.io_start = bus->resource[0]->start;
 	ranges.io_end = bus->resource[0]->end;
 	ranges.mem_start = bus->resource[1]->start;
@@ -165,10 +168,49 @@ pci_setup_bridge(struct pci_bus *bus)
 	l |= bus->resource[2]->end & 0xfff00000;
 	pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE, l);
 
-	/* Check if we have VGA behind the bridge.
-	   Enable ISA in either case. */
-	l = (bus->resource[0]->flags & IORESOURCE_BUS_HAS_VGA) ? 0x0c : 0x04;
-	pci_write_config_word(bridge, PCI_BRIDGE_CONTROL, l);
+	/* cache bridge_ctl from config register */
+	pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &bus->bridge_ctl);
+
+	/*
+	** x86 pcibios_init_bus() will set CTL_NO_ISA bit
+	*/
+
+	/* Forward VGA down this bridge? */
+	if (bus->resource[0]->flags & IORESOURCE_BUS_HAS_VGA)
+		bus->bridge_ctl |= PCI_BRIDGE_CTL_VGA;
+
+	/*
+	** if Bridge supports FBB, set FBB bit in bridge_ctl.
+	** If any subordinate device doesn't support FBB, will get
+	** cleared during bus scan. If it's still set:
+	** o pci_setup_bridge() will enable FBB in bridge (for secondary bus).
+	** o pci_enable_device() will enable FBB for devices.
+	*/
+	pci_read_config_word(dev, PCI_SEC_STATUS, &cap);
+	if (cap & PCI_BRIDGE_CTL_FAST_BACK)
+		bus->bridge_ctl |= PCI_BRIDGE_CTL_FAST_BACK;
+
+	if (
+#ifdef __i386__
+		/*
+		** KLUGE ALERT!
+		** VLSI (1004:0102) makes a "PCI-PCI Bridge" that's not quite.
+		** OmniBook 800 wedges when BUS_RESET bit is cleared (I
+		** suspect the bit means something else) and then try scan
+		** the bus below.
+		*/
+		(dev->vendor == PCI_VENDOR_ID_DEC) &&
+#endif
+		(need_post_reset_delay = bus->bridge_ctl & PCI_BRIDGE_CTL_BUS_RESET))
+	{
+		/* Make sure bus is not reset. Need 1sec delay if it is. */
+		bus->bridge_ctl &= ~PCI_BRIDGE_CTL_BUS_RESET;
+	}
+
+	pci_write_config_word(bridge, PCI_BRIDGE_CONTROL, bus->bridge_ctl);
+
+	if (need_post_reset_delay)
+		mdelay(pci_post_reset_delay);
 }
 
 static void __init
--- 2.4.4-orig/include/linux/pci.h	Sat May 12 07:40:42 2001
+++ 2.4.4/include/linux/pci.h	Sun Jun 17 03:21:55 2001
@@ -403,12 +403,15 @@ struct pci_bus {
 	unsigned char	productver;	/* product version */
 	unsigned char	checksum;	/* if zero - checksum passed */
 	unsigned char	pad1;
+	unsigned short	bridge_ctl;	/* manage NO_ISA/FBB/et al behaviors */
+	unsigned short	pad2;
 };
 
 #define pci_bus_b(n) list_entry(n, struct pci_bus, node)
 
 extern struct list_head pci_root_buses;	/* list of all known PCI buses */
 extern struct list_head pci_devices;	/* list of all devices */
+extern unsigned int pci_post_reset_delay;  /* delay after clearing RESET */
 
 /*
  * Error values that may be returned by PCI functions.
@@ -460,8 +463,10 @@ struct pci_driver {
 /* these external functions are only available when PCI support is enabled */
 #ifdef CONFIG_PCI
 
-void pcibios_init(void);
-void pcibios_fixup_bus(struct pci_bus *);
+/* pcibios_*() == arch specific implementation */
+void pcibios_init(void);			/* global init */
+void pcibios_init_bus(struct pci_bus *);	/* before each bus scan */
+void pcibios_fixup_bus(struct pci_bus *);	/* after each bus scan */
 int pcibios_enable_device(struct pci_dev *);
 char *pcibios_setup (char *str);
 




From - Thu Nov 08 21:18:07 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] WARNING: installing glibc-2.2.3-6 breaks ssh
Date: Mon, 18 Jun 2001 19:50:24 +0100
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Ifyou install glibc-2.2.3-6, sshd will break.  Here's why:

168   setrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0 

glibc-2.2.3-2.0.0.2 had a bug in that it'd set the max limit to INF/2
and everything would work fine.  This needs to be fixed in the kernel
and hopefully I'll get that done by the end of today.

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] fbcon diff
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IMO, fbcon.h should look more like this:

Index: include/video/fbcon.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/video/fbcon.h,v
retrieving revision 1.7
diff -u -p -r1.7 fbcon.h
--- fbcon.h	2001/06/17 22:27:04	1.7
+++ fbcon.h	2001/06/18 19:05:09
@@ -205,19 +205,6 @@ extern int set_all_vcs(int fbidx, struct
 #define fb_writel sbus_writel
 #define fb_memset sbus_memset_io
 
-#elif defined(__hppa__) && !(USE_HPPA_IOREMAP)
-
-/* When we switch to ioremap() usage the following defines will
- * be removed and we'll use the arch-independend generic 
- * functions below instead. */
-#define fb_readb gsc_readb
-#define fb_readw gsc_readw
-#define fb_readl gsc_readl
-#define fb_writeb gsc_writeb
-#define fb_writew gsc_writew
-#define fb_writel gsc_writel
-#define fb_memset gsc_memset_io
-	
 #elif defined(__i386__) || defined(__alpha__)
 
 #define fb_readb __raw_readb
@@ -230,13 +217,13 @@ extern int set_all_vcs(int fbidx, struct
 
 #else
 
-#define fb_readb(addr) (*(volatile u8 *) (addr))
-#define fb_readw(addr) (*(volatile u16 *) (addr))
-#define fb_readl(addr) (*(volatile u32 *) (addr))
-#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
-#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
-#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
-#define fb_memset memset
+#define fb_readb(addr) readb(addr)
+#define fb_readw(addr) readw(addr) 
+#define fb_readl(addr) readl(addr) 
+#define fb_writeb(b,addr) writeb(b,addr) 
+#define fb_writew(b,addr) writew(b,addr) 
+#define fb_writel(b,addr) writel(b,addr) 
+#define fb_memset(addr, c, len) memset_io((unsigned long)addr, c, len)
 
 #endif
 

-- 
Revolutions do not require corporate support.




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From: "E . Pavletic" <Enzo.Pavletic@guest.arnes.si>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] palinux-0.9-32serial.iso install problems on a 753/99
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Hi,

I'm trying to install the palinux-0.9-32serial.iso image from cdrom on my
735, but I run into troubles when the process reaches the point of the
installation of the base system: it hangs. If I try to run the command
"debootstrap sid /target file:/instmnt/debian" manually, I receive the
following messages:

..
I: Retrieving file:/instmnt/debian/dists/unstable/main/binary-hppa/base/util-linux_2.11b-5_hppa.deb
I: Retrieving file:/instmnt/debian/dists/unstable/main/binary-hppa/base/whiptail_0.50.17-6_hppa.deb
I: Extracting required packages
tar: ./usr/share/doc/libperl5.6: Cannot create symlink to 'perl-base':
Input/output error
tar: Error exit delayed from previous errors

Can anyone help me?
enzo





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] K-9000 Sim700 DUMP Configuring 53c710 scsi0 Revision 0x2 (HPMC)
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To: Chris Christie <info@wias.net.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:11384

Hi,
  Are you trying to install the release 0.9 ISO?

Which install type are you attempting?  32 bit, 64 bit, serial
or graphical console?

Can you post the console log so we can see what happens prior
to this HPMC?

If your machine can boot 32 or 64 bit kernels, then I'd suggest
that you try 32 bit serial console, as sim700 is better tested on
32 bit.

Richard


On Sat, Jun 16, 2001 at 05:04:05PM +1000, Chris Christie wrote:
> Any light that can be shed on my problem?
> 
> High Priority Machine Check (HPMC): Code 1
> 
> The machine is a K9000 PA8000 k-250
> 
> 
> Make a WIASA decision today !
> 
> Wholesale Internet Access Services Australasia P/L ACN 096 011 511 BN17400545
> 148 Ipswich Road - Woolloongabba - Brisbane - 4102
> GPO Box 949 Brisbane 4001
> Tel: 07 3217 4103
> Fax: 07 3217 3541  
> Email: info@wias.net.au 
> Mob: 0417 375 196




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Subject: Re: [parisc-linux] palinux-0.9-32serial.iso install problems on a 753/99
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Xref: news.gmane.org gmane.linux.ports.parisc:11385

On Tue, Jun 19, 2001 at 11:26:43AM +0200, E . Pavletic wrote:
> Hi,
> 
> I'm trying to install the palinux-0.9-32serial.iso image from cdrom on my
> 735, but I run into troubles when the process reaches the point of the
> installation of the base system: it hangs. If I try to run the command
> "debootstrap sid /target file:/instmnt/debian" manually, I receive the
> following messages:
> 
> ..
> I: Retrieving file:/instmnt/debian/dists/unstable/main/binary-hppa/base/util-linux_2.11b-5_hppa.deb
> I: Retrieving file:/instmnt/debian/dists/unstable/main/binary-hppa/base/whiptail_0.50.17-6_hppa.deb
> I: Extracting required packages
> tar: ./usr/share/doc/libperl5.6: Cannot create symlink to 'perl-base':
> Input/output error
> tar: Error exit delayed from previous errors
> 
> Can anyone help me?
> enzo

We expect 735 to have problems with the release 0.9 ISO, because of
problems with glibc 2.2.1.  I havn't seen this particular problem
reported before though.  Not something silly like out of disk space
or disk errors, is it?  Can you create files/links in /target from
the shell, once this error happens?

Richard





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Subject: [parisc-linux] Re:Re:palinux-0.9-32serial.iso install problems on a 753/99
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Xref: news.gmane.org gmane.linux.ports.parisc:11386

I had a simila problem when installing on my 735/99, but on other packages.
try running debootstrap from a shell.
bye, 
Matteo Boschini




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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] fbcon diff
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Hi Matthew,

I absolutely agree with you.

The part behind "#elif defined(__hppa__) && !(USE_HPPA_IOREMAP)" should and 
will go away anyway, but the change from direct memory addressing to 
readX()/writeX() modifies generic linux code, could break other arches and 
should IMHO be discussed with Geert, Alan Cox or Linus directly and not be 
changed reclusively in our tree.

Greetings,
Helge


On Monday, 18. June 2001 21:06, Matthew Wilcox wrote:

> IMO, fbcon.h should look more like this:
>
> Index: include/video/fbcon.h
> ===================================================================
> RCS file: /home/cvs/parisc/linux/include/video/fbcon.h,v
> retrieving revision 1.7
> diff -u -p -r1.7 fbcon.h
> --- fbcon.h	2001/06/17 22:27:04	1.7
> +++ fbcon.h	2001/06/18 19:05:09
> @@ -205,19 +205,6 @@ extern int set_all_vcs(int fbidx, struct
>  #define fb_writel sbus_writel
>  #define fb_memset sbus_memset_io
>
> -#elif defined(__hppa__) && !(USE_HPPA_IOREMAP)
> -
> -/* When we switch to ioremap() usage the following defines will
> - * be removed and we'll use the arch-independend generic
> - * functions below instead. */
> -#define fb_readb gsc_readb
> -#define fb_readw gsc_readw
> -#define fb_readl gsc_readl
> -#define fb_writeb gsc_writeb
> -#define fb_writew gsc_writew
> -#define fb_writel gsc_writel
> -#define fb_memset gsc_memset_io
> -
>  #elif defined(__i386__) || defined(__alpha__)
>
>  #define fb_readb __raw_readb
> @@ -230,13 +217,13 @@ extern int set_all_vcs(int fbidx, struct
>
>  #else
>
> -#define fb_readb(addr) (*(volatile u8 *) (addr))
> -#define fb_readw(addr) (*(volatile u16 *) (addr))
> -#define fb_readl(addr) (*(volatile u32 *) (addr))
> -#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
> -#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
> -#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
> -#define fb_memset memset
> +#define fb_readb(addr) readb(addr)
> +#define fb_readw(addr) readw(addr)
> +#define fb_readl(addr) readl(addr)
> +#define fb_writeb(b,addr) writeb(b,addr)
> +#define fb_writew(b,addr) writew(b,addr)
> +#define fb_writel(b,addr) writel(b,addr)
> +#define fb_memset(addr, c, len) memset_io((unsigned long)addr, c, len)
>
>  #endif




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On Tue, Jun 19, 2001 at 06:15:41PM +0200, Helge Deller wrote:
> I absolutely agree with you.

As Larry McVoy says, that's a great way to start an email :-)

> The part behind "#elif defined(__hppa__) && !(USE_HPPA_IOREMAP)" should and 
> will go away anyway, but the change from direct memory addressing to 
> readX()/writeX() modifies generic linux code, could break other arches and 
> should IMHO be discussed with Geert, Alan Cox or Linus directly and not be 
> changed reclusively in our tree.

Certainly our tree should not be the only one making this change.

BTW, I figured out what the problem is with your ioremap
change.  You haven't modified read[bwlq], write[bwlq]
to do non-absolute addressing.  My original three ideas
all called for making this change to {read,write}[bwl]
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-March/011914.html

-- 
Revolutions do not require corporate support.




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I am having so much difficulty burning the CD and getting it to boot, it gives me ENTRY_INIT status = -4 and then a table of hex numbers and goes back to search, I am suspecting it is either the CD or the burner that I am using, I have tried so many diffrent CDs (i.e Memorex 800 mb, Sony 650 mb) and my burner is hp, but I get the same error. Is there anything I can do to solve this ?  





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From: "Pete" <plaven@ozemail.com.au>
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> } please let me know too.. might work on my 715.

> Have you guys tried removing the battery to reset it?

That thought crossed my mind.. it will default back to what though?



Pete
=====
testing? What's that? If it compiles, it is good, 
if it boots up it is perfect.

--- Linus Torvalds
http://www.ao.com/~regan/quotes/Linux.html
==============




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I've been trying to port guile today which includes qthreads.
The qthreads hppa support contains the following code:

            bl          $$dyncall,%mrp  ; call $$dyncall (millicode function)
            copy        %mrp,%rp        ; remember the return-pointer

our assembler doesn't recognise %mrp atm, but i guess HPUX's does.  How
does the following patch look?

--- binutils-2.11.90.0.7/gas/config/tc-hppa.c.orig	Wed Mar 28 10:58:26 2001
+++ binutils-2.11.90.0.7/gas/config/tc-hppa.c	Tue Jun 19 14:09:08 2001
@@ -954,6 +954,11 @@
   {"%isr",   20},
   {"%itmr",  16},
   {"%iva",   14},
+#if TARGET_ARCH_SIZE == 64
+  {"%mrp",    2},
+#else
+  {"%mrp",   31},
+#endif
   {"%pcoq",  18},
   {"%pcsq",  17},
   {"%pidr1",  8},




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] problem with the CD image
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Xref: news.gmane.org gmane.linux.ports.parisc:11392

On Tue, Jun 19, 2001 at 01:47:21PM -0400, asayrafi@uwo.ca wrote:
> I am having so much difficulty burning the CD and getting it to boot, it gives me ENTRY_INIT status = -4 and then a table of hex numbers and goes back to search, I am suspecting it is either the CD or the burner that I am using, I have tried so many diffrent CDs (i.e Memorex 800 mb, Sony 650 mb) and my burner is hp, but I get the same error. Is there anything I can do to solve this ?  


Have you checked the md5sum of the downloaded image?

What machine are you trying to boot on?

Can you read the CD you have burnt ok on some other system?

Do you have any HP CDs that boot on the machine, to prove the CD drive
is ok?


Richard




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Subject: [parisc-linux] Re: 0.9 and nfsroot-install
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On Thu, Jun 21, 2001 at 02:43:42AM +0200, Gregor Anders wrote:
> Hi everyone,
> 
> now i grabbed 0.9 pa-rias linux and tried to install it on an 712/60 with
> nfsroot. Both, serial and sti fail.... they do not give the option to mount
> root via nfs. When i try to mount it manually, i can see the the request is
> authentificated on my nfsroot-server, but my hp712 crashes and i cannot do
> anything. Does anyone have any idea ? Does anyone have an 0.9 base.tgz with a
> recent lifimage ???

Debian woody release doesn't have base.tgz any more.  Instead dbootstrap,
the installer, invokes debootstrap, which "downloads" the required .debs
from somewhere and uses those debs to build the target system.  "download"
might mean from a cdrom, http, or an nfs mounted file system, for example.

I have done installs where I booted the lifimage over the network, and
then used nfs to access the .debs, while installing to a local disk.

I havn't tried to install on to an nfs mounted root file system; I doubt
that anyone has.  The reason it doesn't offer you the choice is probably
because I didn't define NFSROOT in the boot-floppies build, sorry :(
That might also explain your crash.  I've turned it on for the next release.

The lack of a base.tgz in debian woody has been noted on debian-boot
mail list as a problem, especially for the embedded world, where they
have used it in the past as an easy way to create an nfsroot.  No real
solution has emerged yet though.  If you have a functional parisc
system, then you can run debootstrap manually to create something
similar to base.tgz.

Another option being discussed atm is to add a feature where you can
download a tarball of the required base debs, and then get the debootstrap
to "download" from the tarball - helps some people, but not relevant to
your problem.

Richard





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From: Tom <tom@Alaskatech.org>
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Subject: [parisc-linux] Something broke dselect/apt...
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Unfortunately I wasn't watching the update - it's been a little too stable
lately, I guess...

I ran apt-get update/upgrade on Monday - all working. Just ran it again
this morning, had ~9 packages updated. All updated fine - no errors on the
update - but then apt-* fails to work with "error while loading shared
libraries - /usr/lib/libapt-pkg-libc6.2-3.so.3.2: undefined symbol:
_cp_push_exception". Trying to run dselect gives "error while loading
shared libraries: dselect: undefined symbol: __rethrow".

Has anyone noticed this yet and/or noticed something I may have goofed up?
I believe there was a palo update in there, plus one of the libc6-*
packages, but other than that I've no idea...

Thanks!





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Xref: news.gmane.org gmane.linux.ports.parisc:11395

On Thu, Jun 21, 2001 at 06:37:44AM -0800, Tom wrote:
> Unfortunately I wasn't watching the update - it's been a little too stable
> lately, I guess...
> 
> I ran apt-get update/upgrade on Monday - all working. Just ran it again
> this morning, had ~9 packages updated. All updated fine - no errors on the
> update - but then apt-* fails to work with "error while loading shared
> libraries - /usr/lib/libapt-pkg-libc6.2-3.so.3.2: undefined symbol:
> _cp_push_exception". Trying to run dselect gives "error while loading
> shared libraries: dselect: undefined symbol: __rethrow".
> 
> Has anyone noticed this yet and/or noticed something I may have goofed up?
> I believe there was a palo update in there, plus one of the libc6-*
> packages, but other than that I've no idea...

This is because you have picked up a new libstdc++3, but not a new apt.
We tried to update both together, but in the event, apt got delayed by
a day.  You need to grab the new apt.deb and install with dpkg -i.
It should appear in <ftp://ftp.debian.org:/debian/pool/main/a/apt/>
in a few hours.

Richard





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From: =?iso-8859-1?Q?R=FCdiger?= Scholz <rscholz@hrzpub.tu-darmstadt.de>
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Dies ist eine mehrteilige Nachricht im MIME-Format.
--------------86E534352468461910BA93C4
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi there!

I have a HP 715/100-box with a graphics ad-on card, which is listed as
"Coral SGC Graphics..." when booting linux. (btw Perhaps s.o. can tell
me what kind of add-on card it is. It is a CRX, or s.th else?)

The machine is running the 0.9 release with serial console.

I compiled a recent kernel (2.4.0-pa30) with STIfb and STI-Console
enabled, in order to use the STI-Console on my box. Booting this kernel
results in a kernel crash immediately after reading vmlinux. I capture
it via serial console.
Can somebody have a look at it?

The System.map file can be found on http://www.tu-darmstadt.de/~rscholz
.

Thanks, Ruediger
--------------86E534352468461910BA93C4
Content-Type: text/plain; charset=us-ascii;
 name="minicom.cap-sti"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="minicom.cap-sti"



----------------------------------------------------------------------------
BootRom Version    1.4  
Memory Size:  128 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.

Starting Auto boot


Loading Initial Program Loader


IPL successfully loaded


Booting
palo ipl 0.92 bame@palinux Thu Jun 14 14:08:59 MDT 2001
0/vmlinux32 2622963 bytes @ 0x48000
Partition Start(MB) End(MB) Id Type
1               1      22   f0 Palo
2              23      64   83 ext2
3              65     194   82 swap
4             195    2046   83 ext2
Kernel: partition 2 file /vmlinux-2.4.0-pa30-sti
ext2 block size 1024
ext2_mount(partition 2) returns 0
ext2_open(/vmlinux-2.4.0-pa30-sti) = 3
ELF32 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 1580896 mediaptr 0x1000
Segment 1 load 00282000 size 227192 mediaptr 0x183000
Segment 2 load 002bc000 size 240416 mediaptr 0x1bb000
Segment 3 load 002f8000 size 8192 mediaptr 0x1f6000
Segment 4 load 0034414c size 79216 mediaptr 0x1f814c
branching to kernel entry point 0x00100000
Set default PSW W bit to 0

GRs

0x00000000
0x00000000
0xF4100000
0x00000001
0xF5000000
0x00000003
0x00000001
0xF0025328
0x0000000D
0xF02FD698
0xF4300000
0x00000000
0x00080BEF
0x00010000
0x00000005
0x00000032
0x00000000
0x00283BAB
0x00000001
0x00000000
0x00000000
0xF0025000
0x00000500
0x0B00007D
0x00000001
0x00000000
0x00283BAB
0x10282010
0x00000001
0xF02FD698
0x002FD8D8
0x005F93E8

CRs

0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x000000C0
0x0000001E
0x00000000
0x00000000
0x00105800
0xFFFFFFFF
0xD23D5D47
0x00000000
0x005F8944
0xB3202000
0x00000000
0x005F8964
0x00007F00
0x80000000
0x002A1000
0x002A1000
0x1FEBDFFF
0x0900DEEE
0xAAAAAAAA
0xF0002000
0x00000000
0xF00EFFFF

SRs

0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000

OTHER

0x00000000
0x005F8948
0x20000000
0x9E000004
0x00000000
0x00000000
0x00000000
0x00310000
0x00000000
0x00000000
0x00000000
0xF02FD710
0xFFFBE000
0x00000000
0x00000082
0x2C1048E6
0x3B30E497









--------------86E534352468461910BA93C4--





From - Thu Nov 08 21:18:09 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel crashing with STI-Console
Date: Thu, 21 Jun 2001 20:00:52 +0200
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	parisc-linux@parisc-linux.org
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Hi Rdiger,

If I understand you right you have both, a built-in graphic chip (Artist?) 
and the ad-on-card (Coral). 
Without digging any further into your problem I would assume that your 
crashes come from stifb, which does not support multiple graphic cards 
currently. But that's only an assumption.
Does your machine still crashes if you disable stifb and go with sticon only ?

BTW: Could you please also upload the register-dump of the crash to your site 
too - else I won't be able to inspect your crash any further...

Greetings,
Helge.

On Thursday 21 June 2001 19:44, Rdiger Scholz wrote:
> Hi there!
>
> I have a HP 715/100-box with a graphics ad-on card, which is listed as
> "Coral SGC Graphics..." when booting linux. (btw Perhaps s.o. can tell
> me what kind of add-on card it is. It is a CRX, or s.th else?)
>
> The machine is running the 0.9 release with serial console.
>
> I compiled a recent kernel (2.4.0-pa30) with STIfb and STI-Console
> enabled, in order to use the STI-Console on my box. Booting this kernel
> results in a kernel crash immediately after reading vmlinux. I capture
> it via serial console.
> Can somebody have a look at it?
>
> The System.map file can be found on http://www.tu-darmstadt.de/~rscholz
>  .
>
> Thanks, Ruediger




From - Thu Nov 08 21:18:09 2018
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From: =?iso-8859-1?Q?R=FCdiger?= Scholz <rscholz@hrzpub.tu-darmstadt.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel crashing with STI-Console
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To: Helge Deller <deller@gmx.de>, parisc-linux@parisc-linux.org
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Helge Deller schrieb:

> Does your machine still crashes if you disable stifb and go with sticon only ?
>
> BTW: Could you please also upload the register-dump of the crash to your site
> too - else I won't be able to inspect your crash any further...
>
> Greetings,
> Helge.

Hi Helge,

Oops, sorry. I forgot to upload the register-dump. It's now available from
http://www.tu-darmstadt.de/~rscholz, too.

I tried to boot with sticon only but it also crashed. If yo're interested in, I
can post the register-dump and the System.map  of this kernel too...

Greetings,
    Rdiger





From - Thu Nov 08 21:18:09 2018
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: [parisc-linux] misc stuff
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Hi,

with the new changes to io.h enabling of HPPA_IOREMAP is really deadly. There
are some ioremap in drivers missing. The diff below gets my 712 up again.
I guess placing the ioremap to sim700.c would be better, wouldn't it ?
And I'm not sure about the size for the ioremap.

Ok, next issue. I've tried the ps2 mouse patch and it's working for me,
so how about commiting it ?

And finally I've tested the harmony driver. I don't know whether /dev/dsp 
should be always little endian, but I had to convert the .wav files to big 
endian before hearing anything usefull. So should /dev/dsp take native
endian or little endian ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




From - Thu Nov 08 21:18:09 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel crashing with STI-Console
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Dies ist eine mehrteilige Nachricht im MIME-Format.
--------------C2007446FE2673397ACAB331
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit

Hi Helge,

I get the freshest kernel (2.4.0-pa35) out of CVS and tried to boot with only
STI-Console enabled. It also crashed, but this time I have captured the full
register dump include the kernel message.

The serial console capture and the System.map -file is available on
http://www.tu-darmstadt.de/~rscholz.

Thanks for your help,
    Rdiger

--------------C2007446FE2673397ACAB331
Content-Type: text/plain; charset=us-ascii;
 name="sti-kernel-crash.txt"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="sti-kernel-crash.txt"



----------------------------------------------------------------------------
BootRom Version    1.4  
Memory Size:  128 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.

Starting Auto boot


Loading Initial Program Loader


IPL successfully loaded


Booting
palo ipl 0.92 bame@palinux Thu Jun 14 14:08:59 MDT 2001
0/vmlinux32 2622963 bytes @ 0x48000
Partition Start(MB) End(MB) Id Type
1               1      22   f0 Palo
2              23      64   83 ext2
3              65     194   82 swap
4             195    2046   83 ext2
Kernel: partition 2 file /vmlinux-2.4.0-pa35
ext2 block size 1024
ext2_mount(partition 2) returns 0
ext2_open(/vmlinux-2.4.0-pa35) = 3
ELF32 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 1576788 mediaptr 0x1000
Segment 1 load 00282000 size 226848 mediaptr 0x182000
Segment 2 load 002bc000 size 231108 mediaptr 0x1ba000
Segment 3 load 002f8000 size 8192 mediaptr 0x1f3000
Segment 4 load 0033f028 size 78928 mediaptr 0x1f5028
branching to kernel entry point 0x00100000
Set default PSW W bit to 0

GRs

0x00000000
0x00000000
0xF4100000
0x00000001
0xF5000000
0x00000003
0x00000001
0xF0025328
0x0000000D
0xF02FD698
0xF4300000
0x00000000
0x00080BEF
0x00010000
0x00000005
0x00000032
0x00000000
0x00283BAB
0x00000001
0x00000000
0x00000000
0xF0025000
0x00000500
0x0B00007D
0x00000001
0x00000000
0x00283BAB
0x10282010
0x00000001
0xF02FD698
0x002FD8D8
0x005F93E8

CRs

0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x000000C0
0x0000001E
0x00000000
0x00000000
0x00105800
0xFFFFFFFF
0xD1454F12
0x00000000
0x005F8944
0xB3202000
0x00000000
0x005F8964
0x00007F00
0x80000000
0x002A1000
0x002A1000
0x3FEB9FFF
0x0900DEEE
0xAAAAAAAA
0xF0002000
0x00000000
0xF00EFFFF

SRs

0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000

OTHER

0x00000000
0x005F8948
0x20000000
0x9E000004
0x00000000
0x00000000
0x00000000
0x00310000
0x00000000
0x00000000
0x00000000
0xF02FD710
0xFFFBE000
0x00000000
0x00000082
0x2C1048E6
0x3B325F1A




Dumping Stack from 002fc000 to 002fd8d8:

Dumping Stack from 1028a000 to 1028a700:
a000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a020 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a040 00000000 00000000 00000000 00296000 00000000 00000000 00000000 00000000
a060 00000000 00000000 00000000 0010c8ac 00000000 00000000 00000000 00000000
a080 00007f00 00000000 f4100000 00000001 f5000000 00000003 00000001 f0025328
a0a0 0000000d f02fd698 f4300000 00000000 00080bef 00010000 00000005 00000032
a0c0 00000000 00283bab 00000001 00000000 00000000 f0025000 00000500 0b00007d
a0e0 00000001 00000000 00283bab 10282010 00000001 f02fd698 002fd8d8 005f93e8
a100 00000082 2c1048e6 3b325f1a 00000000 00000000 00000000 00000000 00000000
a120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a1c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a1e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a200 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a220 00000000 00000000 005f8944 005f8948 f00effff 00000000 00000000 00000000
a240 00000000 0000001e b3202000 00000000 005f8964 00000000 00000000 00000000
a260 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a280 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a2a0 00000000 00000000 00000000 10106750 00000000 00000000 00000000 00000000
a2c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a2e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a300 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a320 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a340 00000000 00000000 0000001f 0028e000 002a1000 f0012870 00000000 00000000
a360 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a380 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a3a0 00000000 00000000 00000000 1010224c 00000000 00000000 00000000 00000000
a3c0 00000000 00000000 00000001 1028a080 00000000 00000000 00000000 00000000
a3e0 00000000 00000000 00000000 101003b4 00000000 00000000 00000000 00000000
a400 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a420 00000000 00000000 00000000 1010267c 00000000 00000000 00000000 00000000
a440 1024bf40 00000001 1028a080 00000000 00000000 00000000 00000000 f0002840
a460 00310000 00000037 f02fd698 0000000d f0002848 00000000 00000000 00000001
a480 1032d810 00000000 00000000 00000000 00000008 002fd8d8 002fc000 1024c0ec
a4a0 00000000 00000000 00000000 101025cc 00000000 00000000 00000000 00000000
a4c0 0004000e 1032e810 1010267c 002fc000 002fd8d8 1024c000 00000000 f0002848
a4e0 0000000d f02fd698 00000037 00310000 f0002840 00000000 00000000 f02fd710
a500 1028a080 00283bab 00000082 00000000 00000000 f0105800 01c9c380 00000060
a520 00000001 00000001 102973c0 10282010 0000002a 00000000 1028a700 00000000
a540 000d081f 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a560 00000000 00000000 00000000 00000000 00000000 00000000 40800000 00000000
a580 7fffffff 7fffffff 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
a5a0 00000000 00000000 41800000 00000000 00000010 00000010 00000000 00000000
a5c0 7fffffff 7fffffff 41000000 00000000 40800000 00000000 7fffffff 7fffffff
a5e0 41000000 00000000 7fffffff 7fffffff 40800000 00000000 41000000 00000000
a600 40300000 00000000 40200000 00000000 40200000 00000000 41800000 7fffffff
a620 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
a640 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a660 00000000 00000000 101025d8 101025dc f00effff 00000000 00000000 00000000
a680 00000000 0000001f 0c701093 00000000 002fc008 00000000 00000000 00000000
a6a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a6c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
a6e0 00000000 00000000 00000000 10106750 00000000 00000000 00000000 00000000

Kernel Fault: Code=15 regs=1028a4c0 (Addr=002fc008)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110
r0-3     00000000 1032e810 1010267c 002fc000
r4-7     002fd8d8 1024c000 00000000 f0002848
r8-11    0000000d f02fd698 00000037 00310000
r12-15   f0002840 00000000 00000000 f02fd710
r16-19   1028a080 00283bab 00000082 00000000
r20-23   00000000 f0105800 01c9c380 00000060
r24-27   00000001 00000001 102973c0 10282010
r28-31   0000002a 00000000 1028a700 00000000
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101025d8 101025dc
 IIR: 0c701093    ISR: 00000000  IOR: 002fc008
 ORIG_R28: 00000000

--------------C2007446FE2673397ACAB331--





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Xref: news.gmane.org gmane.linux.ports.parisc:11401

On Thu, Jun 21, 2001 at 10:50:16PM +0200, Thomas Bogendoerfer wrote:
> with the new changes to io.h enabling of HPPA_IOREMAP is really deadly. There
> are some ioremap in drivers missing. The diff below gets my 712 up again.

oops, forgot the diff.

Thomas.

Index: drivers/gsc/serial.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/gsc/serial.c,v
retrieving revision 1.11
diff -u -r1.11 serial.c
--- drivers/gsc/serial.c	2001/06/14 09:50:22	1.11
+++ drivers/gsc/serial.c	2001/06/21 01:22:48
@@ -66,7 +66,7 @@
 	serial->type = PORT_16550A;
 
 	serial->line = serial_line_nr;
-	serial->iomem_base = (void*) (((unsigned long) d->hpa) + 0x800);
+	serial->iomem_base = (void*)ioremap((((unsigned long) d->hpa) + 0x800),0x80);
 
 	serial->irq = irq; 
 	serial->io_type = SERIAL_IO_MEM;	/* define access method */
Index: drivers/scsi/lasi7xx.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/scsi/lasi7xx.c,v
retrieving revision 1.14
diff -u -r1.14 lasi7xx.c
--- drivers/scsi/lasi7xx.c	2001/03/03 05:07:36	1.14
+++ drivers/scsi/lasi7xx.c	2001/06/21 01:29:02
@@ -88,7 +88,7 @@
 lasi_scsi_callback_700(struct hp_device *d, struct pa_iodc_driver *dri)
 {
 	hosts_used = sim700_init_host(hosts_tptr, 700, 
-			(unsigned long)d->hpa + LASI_SCSI_CORE_OFFSET,
+			ioremap((unsigned long)d->hpa + LASI_SCSI_CORE_OFFSET, 0x100),
 			busdevice_alloc_irq(d), OPT_NCR_LE);
 
 	return (hosts_used == 0);
@@ -98,7 +98,7 @@
 lasi_scsi_callback_710(struct hp_device *d, struct pa_iodc_driver *dri)
 {
 	hosts_used = sim700_init_host(hosts_tptr, 710, 
-			(unsigned long)d->hpa + LASI_SCSI_CORE_OFFSET,
+			ioremap((unsigned long)d->hpa + LASI_SCSI_CORE_OFFSET,0x100),
 			busdevice_alloc_irq(d), 0);
 
 	return (hosts_used == 0);

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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From: Al Budriunas <budriuna@cacr.caltech.edu>
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Subject: [parisc-linux] Error creating PALO
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During the PALO creation phase of the initial installation, an error
message saying "PALO wasn't able to install. You can still remote boot and
point the root device to the installed system".

The install target is an HP 712/60 with a 2.2GB SCSI-SE disk with three
partitions:

sda1 128MB  linux swap fstype 82
sda2 16 MB linux fstype 83
sda3 2GB linux ext2 fstype 83

My intention is to use sda2 for PALO, and sda3 for everything else. Since
I could not find any means of creating F0 fstype for PALO, is assumed the
install/setup process would do that for me. Is that an incorrect
assumption? If so, what steps do I take to create the F0 fstype to install
PALO?

The source is version 0.9 iso image on bootable CDROM, June 1 release.

Your help is greatly appreciated.

Thanks,

Al


------------------------------------------------------------------
Al Budriunas                            email: budriuna@rsn.hp.com  
Hewlett Packard Co.                     voice: 310-535-2884
Los Angeles, Ca.                        
------------------------------------------------------------------





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Al Budriunas writes...

> The install target is an HP 712/60 with a 2.2GB SCSI-SE disk with three
> partitions:
> 
> sda1 128MB  linux swap fstype 82
> sda2 16 MB linux fstype 83
> sda3 2GB linux ext2 fstype 83
> 
> My intention is to use sda2 for PALO, and sda3 for everything else. Since
> I could not find any means of creating F0 fstype for PALO, is assumed the
> install/setup process would do that for me. Is that an incorrect
> assumption? If so, what steps do I take to create the F0 fstype to install
> PALO?

The partition types are set during the disk partitioning phase of the install 
when running the "cfdisk" tool.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Xref: news.gmane.org gmane.linux.ports.parisc:11404

> 
> During the PALO creation phase of the initial installation, an error
> message saying "PALO wasn't able to install. You can still remote boot and
> point the root device to the installed system".
> 
> The install target is an HP 712/60 with a 2.2GB SCSI-SE disk with three
> partitions:
> 
> sda1 128MB  linux swap fstype 82
> sda2 16 MB linux fstype 83
> sda3 2GB linux ext2 fstype 83
> 
> My intention is to use sda2 for PALO, and sda3 for everything else. Since
> I could not find any means of creating F0 fstype for PALO, is assumed the
> install/setup process would do that for me. Is that an incorrect
> assumption? If so, what steps do I take to create the F0 fstype to install
> PALO?

cfdisk and fdisk both can change a partition type.  in cfdisk select
the partition you desire and use the [Type] item below.

palo currently requires that both the "F0" partition, and any partitions
from which you are going to boot, *end* within the first 2Gbytes, so your
sda3 is just over the limit.  Perhaps you might make a small /boot
partition near the front of the drive.

	-P




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From: Al Budriunas <budriuna@cacr.caltech.edu>
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Subject: Re: [parisc-linux] Error creating PALO
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on Thu, 21 Jun 2001, Matt Taggart wrote:
> Al Budriunas writes...
> 
> > The install target is an HP 712/60 with a 2.2GB SCSI-SE disk with three
> > partitions:
> > 
> > sda1 128MB  linux swap fstype 82
> > sda2 16 MB linux fstype 83
> > sda3 2GB linux ext2 fstype 83
> > 
> > My intention is to use sda2 for PALO, and sda3 for everything else. Since
> > I could not find any means of creating F0 fstype for PALO, is assumed the
> > install/setup process would do that for me. Is that an incorrect
> > assumption? If so, what steps do I take to create the F0 fstype to install
> > PALO?
> 
> The partition types are set during the disk partitioning phase of the install 
> when running the "cfdisk" tool.
> 

Matt,

The cfdisk utility didn't have a F0 fstype available. There was a message
during the installation that mentioned this. Hence, my assumption.  

Regards,

Al

--------------------------------------------------------------------
Al Budriunas                            email: budriuna@rsn.hp.com  
Hewlett Packard Co.                     voice: 310-535-2884
Los Angeles, Ca.                        
------------------------------------------------------------------





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Xref: news.gmane.org gmane.linux.ports.parisc:11406

On Thu, 21 Jun 2001 bame@riverrock.org wrote:

> > During the PALO creation phase of the initial installation, an error
> > message saying "PALO wasn't able to install. You can still remote boot and
> > point the root device to the installed system".
> > 
> > The install target is an HP 712/60 with a 2.2GB SCSI-SE disk with three
> > partitions:
> > 
> > sda1 128MB  linux swap fstype 82
> > sda2 16 MB linux fstype 83
> > sda3 2GB linux ext2 fstype 83
> > 
> > My intention is to use sda2 for PALO, and sda3 for everything else. Since
> > I could not find any means of creating F0 fstype for PALO, is assumed the
> > install/setup process would do that for me. Is that an incorrect
> > assumption? If so, what steps do I take to create the F0 fstype to install
> > PALO?
> 
> cfdisk and fdisk both can change a partition type.  in cfdisk select
> the partition you desire and use the [Type] item below.
> 
> palo currently requires that both the "F0" partition, and any partitions
> from which you are going to boot, *end* within the first 2Gbytes, so your
> sda3 is just over the limit.  Perhaps you might make a small /boot
> partition near the front of the drive.
> 
> 	-P
> 

The installation menu for partitioning didn't have an option for F0 in
cfdisk. In fact, there were no options to even use fdisk. The installation
notes mentioned that the /boot flag was ignored in cfdisk (I used it
anyway during the latest attempt). The partition I was intending to use
for PALO is within the first 2GB (sda2, just after swap, sda1).

I'll reinstall again without exceeding the 2GB limitation.

Thanks,

Al
 
------------------------------------------------------------------
Al Budriunas                            email: budriuna@rsn.hp.com  
Hewlett Packard Co.                     voice: 310-535-2884
Los Angeles, Ca.                        
------------------------------------------------------------------





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Al Budriunas writes...

> Matt,
> 
> The cfdisk utility didn't have a F0 fstype available.

You can change the partition type to f0 but it's not in the list of partition 
types.  I have submitted a wishlist bug against the Debian util-linux package 
with a patch to add it to the list. You can track it's status at,

http://www.debian.org/Bugs/

and searching "By package:" for util-linux (it hasn't shown up yet so I don't 
know the bug number yet).  The Debian maintainer will forward it to the 
upstream maintainer and with any luck it will get added to a future release.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Xref: news.gmane.org gmane.linux.ports.parisc:11408

> On Thu, Jun 21, 2001 at 06:37:44AM -0800, Tom wrote:
> > I ran apt-get update/upgrade on Monday - all working. Just ran it again
> > this morning, had ~9 packages updated. All updated fine - no errors on the
> > update - but then apt-* fails to work with "error while loading shared
> > libraries - /usr/lib/libapt-pkg-libc6.2-3.so.3.2: undefined symbol:
> > _cp_push_exception". Trying to run dselect gives "error while loading
> > shared libraries: dselect: undefined symbol: __rethrow".
> >
> > Has anyone noticed this yet and/or noticed something I may have goofed up?
> > I believe there was a palo update in there, plus one of the libc6-*
> > packages, but other than that I've no idea...
>
> On Thu, 21 Jun 2001, Richard Hirst wrote:
> This is because you have picked up a new libstdc++3, but not a new apt.
> We tried to update both together, but in the event, apt got delayed by
> a day.  You need to grab the new apt.deb and install with dpkg -i.
> It should appear in <ftp://ftp.debian.org:/debian/pool/main/a/apt/>
> in a few hours.

Installing the apt packages from there allowed apt-get update/upgrade to
run, which fixed dselect. However, I'm getting the same libapt/libc6 error
when installing packages - they download, then I get that error when it's
apparently trying to preprocess them. After the error they install fine
and everything works...

Am going to let it sit for a few days, see what else shakes loose as far
as updates are concerned, then worry about it if it's still giving the
errors...

Thanks for the response!





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From: Keith Owens <kaos@ocs.com.au>
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Subject: [parisc-linux] SCSI in arch/{m68k,parisc,sparc*}/config.in
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cc: kaos@ocs.com.au please, I am not on these lists.

arch/{m68k,parisc,sparc*}/config.in have their own SCSI list instead of
using drivers/scsi/Config.in.  Cleaning up the SCSI config file is on
my 2.5 TODO list, can you tell me why these architectures have their
own list of SCSI devices?

If it is because only some SCSI drivers work on these architectures, do
you really need to be this specific?  Other architectures source
drivers/scsi/Config.in without checking for arch dependent drivers.  If
the need is to support extra arch specific drivers, use the same
technique as acorn :-

# drivers/scsi/Config.in
if [ "$CONFIG_ARCH_ACORN" = "y" ]; then
   source drivers/acorn/scsi/Config.in
fi

ps. There is no entry for parisc in MAINTAINERS.





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Subject: Re: [parisc-linux] SCSI in arch/{m68k,parisc,sparc*}/config.in
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>>>>> "Keith" == Keith Owens <kaos@ocs.com.au> writes:

Keith> cc: kaos@ocs.com.au please, I am not on these lists.
Keith> arch/{m68k,parisc,sparc*}/config.in have their own SCSI list
Keith> instead of using drivers/scsi/Config.in.  Cleaning up the SCSI
Keith> config file is on my 2.5 TODO list, can you tell me why these
Keith> architectures have their own list of SCSI devices?

Keith> If it is because only some SCSI drivers work on these
Keith> architectures, do you really need to be this specific?  Other
Keith> architectures source drivers/scsi/Config.in without checking
Keith> for arch dependent drivers.  If the need is to support extra
Keith> arch specific drivers, use the same technique as acorn :-

For the m68k it's because we do not support any PCI/ISA devices and
all the SCSI drivers in drivers/scsi/Config.in at least used to not be
protected by CONFIG_ISA, CONFIG_PCI etc. hence we would end up with
200 questions about SCSI drivers that do not work. If you can convince
Linus to take a patch that puts CONFIG_{ISA,PCI,SBUS,NUBUS,ZORRO} in
drivers/scsi/Config.in then we can move it no problem.

Jes




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Subject: [parisc-linux] Re: SCSI in arch/{m68k,parisc,sparc*}/config.in
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On Fri, 22 Jun 2001, Keith Owens wrote:
> cc: kaos@ocs.com.au please, I am not on these lists.
> 
> arch/{m68k,parisc,sparc*}/config.in have their own SCSI list instead of
> using drivers/scsi/Config.in.  Cleaning up the SCSI config file is on
> my 2.5 TODO list, can you tell me why these architectures have their
> own list of SCSI devices?
> 
> If it is because only some SCSI drivers work on these architectures, do
> you really need to be this specific?  Other architectures source
> drivers/scsi/Config.in without checking for arch dependent drivers.  If
> the need is to support extra arch specific drivers, use the same
> technique as acorn :-

[ speaking for m68k ]

We do that to avoid being annoyed with questions about irrelevant SCSI
hardware. If nowadays all ISA/EISA/MCA/PCI SCSI hardware questions are properly
protected with their respective CONFIG_*, we're willing to include the generic
drivers/scsi/Config.in.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds





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Subject: Re: [parisc-linux] Error creating PALO
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Xref: news.gmane.org gmane.linux.ports.parisc:11412

Matt Taggart writes...

> You can change the partition type to f0 but it's not in the list of partition
> types.  I have submitted a wishlist bug against the Debian util-linux package
> with a patch to add it to the list. 

The bug is #101853. Info at,

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=101853

Hopefully this will get into the next version and into a future version of the 
installer.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: Re: [parisc-linux] Error creating PALO
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On Fri, 22 Jun 2001, Matt Taggart wrote:

> Matt Taggart writes...
> 
> > You can change the partition type to f0 but it's not in the list of partition
> > types.  I have submitted a wishlist bug against the Debian util-linux package
> > with a patch to add it to the list. 
> 
> The bug is #101853. Info at,
> 
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=101853
> 
> Hopefully this will get into the next version and into a future version of the 
> installer.
> 

Matt,

Would you please share (or point me to) the procedure to change PALO
parititon into f0 type?

Thanks for the quick response.


Al


------------------------------------------------------------------
Al Budriunas                            email: budriuna@rsn.hp.com  
Hewlett Packard Co.                     voice: 310-535-2884
Los Angeles, Ca.                        
------------------------------------------------------------------





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Xref: news.gmane.org gmane.linux.ports.parisc:11414

Al Budriunas writes...

> Would you please share (or point me to) the procedure to change PALO
> parititon into f0 type?

1.) Run cfdisk
2.) Select the partition you want to change using the up/down arrows.
3.) Select "Type"(it may prompt you to hit space when listing the types)
4.) Enter "f0"
5.) Select "Write" to write the partition table to the disk
6.) Select "Quit" to exit cfdisk.

If you're still having problems then we may have a bug.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: [parisc-linux] Re: SCSI in arch/{m68k,parisc,sparc*}/config.in
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Keith Owens writes:
 > arch/{m68k,parisc,sparc*}/config.in have their own SCSI list instead of
 > using drivers/scsi/Config.in.  Cleaning up the SCSI config file is on
 > my 2.5 TODO list, can you tell me why these architectures have their
 > own list of SCSI devices?
 > 
 > If it is because only some SCSI drivers work on these architectures, do
 > you really need to be this specific?

If I can forward every "How come I can compile ISA SCSI device X and
it doesn't work on my UltraSPARC" email to you, I'll more than happily
start including drivers/scsi/Config.in :-)

Jeff Garzik and I just did all the necessary dep_tristate'ing for
drivers/net/Config.in and at least in my tree I include in on sparc64.

Being able to do this on every platform is certainly a goal, and for
all the PCI drivers to be portable enough to work on every platform is
the next step.  I think Jeff and I can do it for the networking
drivers, but I have no idea who would go about working on this for
the scsi stuff.

Later,
David S. Miller
davem@redhat.com




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Xref: news.gmane.org gmane.linux.ports.parisc:11416

On Fri, 22 Jun 2001 17:32:13 -0700 (PDT), 
"David S. Miller" <davem@redhat.com> wrote:
>If I can forward every "How come I can compile ISA SCSI device X and
>it doesn't work on my UltraSPARC" email to you, I'll more than happily
>start including drivers/scsi/Config.in :-)

ESR has already done much of the bus dependency checking for SCSI in
CML2.  We don't plan to do anything about 2.4, it is a 2.5 cleanup.  I
just wanted to confirm why some architectures had their own SCSI list,
that has now been confirmed.





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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Unaligned trap handler - comments appreciated
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Xref: news.gmane.org gmane.linux.ports.parisc:11417

In reference to a message from Randolph Chung, dated Jun 18:
> I just checked in an arch/parisc/kernel/unaligned.c file into palinux
> cvs.

I've updated traps.c to call the unaligned handler now. Many thanks to
jsm for his help and advice.

I've only tested this for parisc64, would appreciate if someone can test
to make sure it works on a narrow kernel as well. My test case looks
something like this:


#include <stdio.h>

struct data_t {
        unsigned long a;
        unsigned long b;
};

int main(int argc, char **argv)
{
        struct data_t data;
        unsigned char *t;
        unsigned long l;
        int i;

        data.a = 0x12345678;
        data.b = 0x87654321;

        t = (unsigned char *)(&data)+1;
        l = *((unsigned long *)t);
        printf("l = 0x%08lx\n\n\n", l);

        printf("expected result is: 0x");
        for (i = 0; i < sizeof(unsigned long); i++)
                printf("%x", *(t+i));
        printf("\n");

        printf("testing store...\n");
        *((unsigned long *)t) = 0x13572468;

        l = *((unsigned long *)t);
        printf("l = 0x%08lx\n", l);

        return 0;
}

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Unaligned trap handler - comments appreciated
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Xref: news.gmane.org gmane.linux.ports.parisc:11418

Hi Randolph,

I've tested your changes on a 32bit kernel:

c3000:~/unaligned# uname -a
Linux c3000 2.4.0-pa37 #1 Sam Jun 23 11:42:43 CEST 2001 parisc unknown
c3000:~/unaligned# gcc unaligned.c
c3000:~/unaligned# ./a.out
Bus error

In the syslog:
Jun 23 14:26:36 c3000 kernel: a.out(3225): unaligned access to 0xbff00649 at 
ip=0x000104fb

Greetings,
Helge

On Saturday 23 June 2001 08:54, Randolph Chung wrote:
> In reference to a message from Randolph Chung, dated Jun 18:
> > I just checked in an arch/parisc/kernel/unaligned.c file into palinux
> > cvs.
>
> I've updated traps.c to call the unaligned handler now. Many thanks to
> jsm for his help and advice.
>
> I've only tested this for parisc64, would appreciate if someone can test
> to make sure it works on a narrow kernel as well. My test case looks
> something like this:
>
>
> #include <stdio.h>
>
> struct data_t {
>         unsigned long a;
>         unsigned long b;
> };
>
> int main(int argc, char **argv)
> {
>         struct data_t data;
>         unsigned char *t;
>         unsigned long l;
>         int i;
>
>         data.a = 0x12345678;
>         data.b = 0x87654321;
>
>         t = (unsigned char *)(&data)+1;
>         l = *((unsigned long *)t);
>         printf("l = 0x%08lx\n\n\n", l);
>
>         printf("expected result is: 0x");
>         for (i = 0; i < sizeof(unsigned long); i++)
>                 printf("%x", *(t+i));
>         printf("\n");
>
>         printf("testing store...\n");
>         *((unsigned long *)t) = 0x13572468;
>
>         l = *((unsigned long *)t);
>         printf("l = 0x%08lx\n", l);
>
>         return 0;
> }
>
> randolph




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] boot-floppies build status
Date: Sat, 23 Jun 2001 17:00:25 +0100
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Hi,
  I'm busy building new boot-floppies, and have run into sufficient
issues, that I thought I'd better write them down...

deboostrap, good news, I am using 0.1.13 with no local edits, but
it is not in the archive, so I built it myself.  pehc cvs is not
up to date atm.

slang...  to get rid of the problems with slang.so references I had
to

build and install slang1, slang1-dev, slang1-pic
build and install libnewt0, libnewt-dev, libnewt-pic
build and install whiptail
build and install util-linux
build nano-tiny

NOTE when building slang I hacked the rules file to specify
--host=hppa-linux on the configure line - apparently it builds a
broken pkg if you don't do that.

I needed groff-base, which isn't in the archive, so had to build it.

boot-floppies depended on a newer version of libbogl-dev than was in
the archive, so I had to build that.

I tried to build the latest busybox, but failed.  conflicting types for
blah blah blah.

The new dpkg-dev 1.9.12 seems broken; with that installed
apt-get -b source foo fails because it doesn't like the directory
foo is unpacked in to (expects base-config, gets base-config-1.0.8, or
similar).

Building util-linux had problems, maybe due to dpkg-dev, I think
debian/rules probably didn't have execute permissions.

I had trouble upgrading my box because I already had an apt 0.5.3.0.90,
which was taken as newer than the fixed one, 0.5.3.  Guess I got that
from pehc somewhere.

I'm now using boot-floppies source from debian cvs, with a couple of
local hacks to avoid library reduction and reduce language set, just
to speed up the build.  Also an edit to dbootstrap.h to default to
sid rather than woody.  That edit is in pehc cvs, but otherwise pehc cvs
needs bringing in to sync again.

I had whiptail crashing after upgrading to latest slang/newt/whiptail
from the archive, but having installed my own built pkgs that problem
seems to have gone away.

I tried to remove libstdc++3.0, but we still have things depending on
it:

slab:~# dpkg --remove libstdc++3.0
dpkg: dependency problems prevent removal of libstdc++3.0:
 tetex-bin depends on libstdc++3.0.
 telnet depends on libstdc++3.0.

telnet is part of base, so I had to build a new telnet.

An attempt to upgrade my system reports:
The following packages have been kept back
  debconf debhelper perl-modules 

but that isn't causing me a problem at the moment.

Known outstanding ussues:

keyboard generates 'unknown scancode 7f' for various keys, eg. capslock,
'|' on a uk keyboard.

Lines round dialog boxes use the wrong chars for serial console, or don't
exist for sti consoles.  Varies between stage 1 and 2 of install.  May be
better with my rebuilt newt/slang/whiptail stuff.  We'll see.

Kernel configs need ps/2 mouse support adding (Helge said he would, havn't
checked).

Kernel needs serial patch from Clement.

Kernel configs might need sound/harmony adding.  32 bit only?  Modules?

Last night an install on my 712 broke during 2nd stage, ran to the
end, but had never asked for root password, or to create a user, etc.
Some perl errors flashed by.  Date was 1970... Will try with the newer
stuff tonight.

Should we be building kernel-images optimised for each cpu type, like
x86 do -386, -486, -586, etc?

So, now b-f builds, and debootstrap seems happy with the pkgs in my
new base tree.  I'll see if it actually works later tonight.

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] boot-floppies build status
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Xref: news.gmane.org gmane.linux.ports.parisc:11420

On Sat, Jun 23, 2001 at 05:00:25PM +0100, Richard Hirst wrote:
> I tried to build the latest busybox, but failed.  conflicting types for
> blah blah blah.

Bug filed at bugs.d.o


diff -ur busybox-0.51.orig.clean/applets.c busybox-0.51.orig/applets.c
--- busybox-0.51.orig.clean/applets.c	Tue Apr  3 18:05:01 2001
+++ busybox-0.51.orig/applets.c	Sun Jun 24 01:40:03 2001
@@ -78,7 +78,7 @@
 	return strcmp(name, applet->name);
 }
 
-extern size_t NUM_APPLETS;
+extern const size_t NUM_APPLETS;
 
 struct BB_applet *find_applet_by_name(const char *name)
 {
diff -ur busybox-0.51.orig.clean/messages.c busybox-0.51.orig/messages.c
--- busybox-0.51.orig.clean/messages.c	Thu Mar 15 22:58:11 2001
+++ busybox-0.51.orig/messages.c	Sun Jun 24 01:38:10 2001
@@ -41,9 +41,9 @@
 #define _BB_MESSAGES_C
 
 #ifdef BB_DECLARE_EXTERN
-#  define BB_DEF_MESSAGE(symbol, string_const) extern const char *symbol;
+#  define BB_DEF_MESSAGE(symbol, string_const) extern const char * const symbol;
 #else
-#  define BB_DEF_MESSAGE(symbol, string_const) const char *symbol = string_const;
+#  define BB_DEF_MESSAGE(symbol, string_const) const char * const symbol = string_const;
 #endif
 
 




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On Sat, Jun 23, 2001 at 05:00:25PM +0100, Richard Hirst wrote:
> Last night an install on my 712 broke during 2nd stage, ran to the
> end, but had never asked for root password, or to create a user, etc.
> Some perl errors flashed by.  Date was 1970... Will try with the newer
> stuff tonight.

We need an up to date build of perl to fix this, see #100557.

Richard





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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: [parisc-linux] Re: Headless workstation?
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Joe Drew wrote:
> I've got a 712/60 ...
> Is there any way to get the HP workstations to boot headless?

Yes. See
    http://lists.parisc-linux.org/pipermail/parisc-linux/1999-December/008117.html

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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To: Joe Drew <hoserhead@woot.net>
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Joe Drew wrote:
> [url details how to set up serial console]
> 
> Unfortunately I don't have a serial console available. I was looking for
> just how to disable the error on startup when a keyboard isn't available..

Ok. You can't. You can only change to serail console.
Note that 712 models are the only parisc workstations with this limitation.
All other workstations revert to serial console automatically if no
keyboard is attached.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: "Bas Valkema" <bvalkema@knowhowww.nl>
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Subject: Re: [parisc-linux] Re: Headless workstation?
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Xref: news.gmane.org gmane.linux.ports.parisc:11424

I have a 712/100 here, with only a keyboard attached...
Doesn't give any errors, so you might try that.

 - Bas
----- Original Message -----
From: "Grant Grundler" <grundler@puffin.external.hp.com>
To: "Joe Drew" <hoserhead@woot.net>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Sunday, June 24, 2001 6:43 PM
Subject: [parisc-linux] Re: Headless workstation?


> Joe Drew wrote:
> > [url details how to set up serial console]
> >
> > Unfortunately I don't have a serial console available. I was looking for
> > just how to disable the error on startup when a keyboard isn't
available..
>
> Ok. You can't. You can only change to serail console.
> Note that 712 models are the only parisc workstations with this
limitation.
> All other workstations revert to serial console automatically if no
> keyboard is attached.
>
> grant
>
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
>





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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] Re: Headless workstation?
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Andrew Shugg writes...

> For the keyboard problem, you can either find another PS2 keyboard and
> plug that in, or buy/make a PS/2 loopback connector which will
> effectively make the PS/2 port think there is a keyboard attached.

I heard an interesting story once...

A large retailer used 712s as a central server of each store. Because they
didn't want the local employees meesing with the system and the serial
console hack wasn't published at the time they used a PS/2 loopback
connector. The only other connections to the system were power and 10bt. If
the central office ever had problems connecting to the system they'd call
the local manager up and ask him to cycle the soft-power switch. If it still
didn't respond they swap the box out :)

Having soft-power under linux would be really cool, but I'm not sure what
state its in currently.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation




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From: "Pete" <plaven@ozemail.com.au>
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Subject: [parisc-linux] serial cable..
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Hi everyone,

While cruising the local computer market I came across a serial 
line print cable, 9pin D connect to 25 pin D connector.. now, with 
luck a xover and genderchanger, should see this cable fit the rather 
recessed port on the 715..

Does anyone know of possible problems with using something like 
this for a "normal" serial cable use?.. nothing like a power wire or 
something like that likely to be an issue...

I appreciate this is off topic.. but it might just be over come my lack 
of serial cable that fits issue..

THanks,



Pete

==========================

Q: I'm having problems with my Windows software.  
Will you help me?

A: Yes.  Go to a DOS prompt and type "format c:".  
Any problems you are experiencing will cease 
within a few minutes.

==========================================




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From: Richard Hirst <rhirst@linuxcare.com>
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On Sat, Jun 23, 2001 at 05:00:25PM +0100, Richard Hirst wrote:
> slang...  to get rid of the problems with slang.so references I had
> to
> 
> build and install slang1, slang1-dev, slang1-pic
> build and install libnewt0, libnewt-dev, libnewt-pic
> build and install whiptail
> build and install util-linux
> build nano-tiny

and tasksel is built against a bad slang1 also.

Richard





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Subject: Re: [parisc-linux] XFree86, sti bmode/wmode merge
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Hi Thomas,

> I've greped the mailinglist archive, and didn't find anything, that
someone
> tried the Xfree86 server on parisc. So I did it and to my great surprise
> it worked out of the box with stifb (ok, I had to tweak XF86Config a
little
> bit). Right now the gecko (712/80) to my right display a more of less
> ugly Xserver with two Xterms and vtwm as window manager. That's pretty
> cool.

I was just trying to set up an xserver on my 712/60, but i'm not too
experienced in these things and failed. Could you give me some hints on what
you have installed and what the tweaking was, you did? Or may be, there is a
web ressource i havn't found yet.

Greetings,
Yves...





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From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
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Subject: [parisc-linux] Re: [PATCH] 2.4.4 PCI FBB
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Cc: jgarzik@mandrakesoft.com, linux-kernel@vger.kernel.org,
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Xref: news.gmane.org gmane.linux.ports.parisc:11429

On Sat, Jun 23, 2001 at 02:33:54PM -0600, Grant Grundler wrote:
> Ivan,
> I just got back to reading my mail....offline for three days
> in switzerland.

I've been offline for last few days, too...

> > I also have some PCI fixes/cleanups for your review)...
> 
> ok. I look forward to them...they are probably deeper in my mail queue.

No, sorry. I would like to integrate your FBB stuff, but had no time yet...
Anyway, here is a patch (not for inclusion! :-). It applies cleanly to
2.4.6-pre5 (or to 2.4.5 with offsets) and was reasonably well tested
on my alphas.
Changes:
- bus resources were not added to the resource tree properly. This bug is
  harmless in most configurations, but could be triggered by some driver
  requesting resources in the run-time.
- as you proposed a while back, code from arch-specific pcibios_fixup_bus() is
  now moved to generic pbus_assign_resources(). Hopefully this makes PPB code
  a bit cleaner.
- on the contrary, code disabling pci devices before reallocation is now
  arch-specific, as various platforms may have different console devices.
  pdev_enable_device() killed thus. On alpha I renamed it to
  pcibios_postalloc_fixup().
- pcibios_set_bridge_ctl() introduced, but this likely has to be
  changed/renamed for FBB support.
These changes currently are only for alpha and would break ARM...

Some thoughts of your patch:
- I'm not sure that we need a new field in the struct pci_bus --
  we have plenty of room in the bridge/bus->resource[N]->flags (I used
  it for IORESOURCE_BUS_HAS_VGA, same could be done for, say,
  IORESOURCE_BUS_FBB etc.)?
- it seems that pcibios_init_bus() will be actually called *before*
  pci_setup_bridge(), at least on alpha. So initializing the FBB bit
  should be done in pcibios_init_bus().

Ivan.

--- 2.4.6/include/linux/pci.h	Thu Jun 14 14:10:34 2001
+++ linux/include/linux/pci.h	Thu Jun 14 14:12:12 2001
@@ -501,6 +501,7 @@ void pcibios_update_resource(struct pci_
 			     struct resource *, int);
 void pcibios_update_irq(struct pci_dev *, int irq);
 void pcibios_fixup_pbus_ranges(struct pci_bus *, struct pbus_set_ranges_data *);
+void pcibios_set_bridge_ctl(struct pci_dev *);
 
 /* Backward compatibility, don't use in new code! */
 
@@ -571,9 +572,7 @@ int pci_enable_wake(struct pci_dev *dev,
 
 int pci_claim_resource(struct pci_dev *, int);
 void pci_assign_unassigned_resources(void);
-void pdev_enable_device(struct pci_dev *);
 void pdev_sort_resources(struct pci_dev *, struct resource_list *, u32);
-unsigned long pci_bridge_check_io(struct pci_dev *);
 void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *),
 		    int (*)(struct pci_dev *, u8, u8));
 #define HAVE_PCI_REQ_REGIONS
--- 2.4.6/drivers/pci/setup-bus.c	Sun May 20 04:43:06 2001
+++ linux/drivers/pci/setup-bus.c	Thu Jun 14 14:12:12 2001
@@ -12,6 +12,12 @@
 /*
  * Nov 2000, Ivan Kokshaysky <ink@jurassic.park.msu.ru>
  *	     PCI-PCI bridges cleanup, sorted resource allocation
+ *
+ * NOTE: during reallocation we may have temporarily overlapping
+ * IO or MEM ranges, so the arch code (pcibios_fixup_bus()) is
+ * responsible for disabling all devices, probably except console
+ * (VGA, serial etc.) and bridges the console device might be
+ * behind -- typically AGP or PCI-(E)ISA bridges.
  */
 
 #include <linux/init.h>
@@ -23,7 +29,7 @@
 #include <linux/slab.h>
 
 
-#define DEBUG_CONFIG 1
+#define DEBUG_CONFIG 0
 #if DEBUG_CONFIG
 # define DBGC(args)     printk args
 #else
@@ -46,23 +52,10 @@ pbus_assign_resources_sorted(struct pci_
 	for (ln=bus->devices.next; ln != &bus->devices; ln=ln->next) {
 		struct pci_dev *dev = pci_dev_b(ln);
 		u16 class = dev->class >> 8;
-		u16 cmd;
 
-		/* First, disable the device to avoid side
-		   effects of possibly overlapping I/O and
-		   memory ranges.
-		   Leave VGA enabled - for obvious reason. :-)
-		   Same with all sorts of bridges - they may
-		   have VGA behind them.  */
 		if (class == PCI_CLASS_DISPLAY_VGA
 				|| class == PCI_CLASS_NOT_DEFINED_VGA)
 			found_vga = 1;
-		else if (class >> 8 != PCI_BASE_CLASS_BRIDGE) {
-			pci_read_config_word(dev, PCI_COMMAND, &cmd);
-			cmd &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY
-						| PCI_COMMAND_MASTER);
-			pci_write_config_word(dev, PCI_COMMAND, cmd);
-		}
 
 		/* Reserve some resources for CardBus.
 		   Are these values reasonable? */
@@ -160,15 +153,31 @@ pci_setup_bridge(struct pci_bus *bus)
 	l |= ranges.mem_end & 0xfff00000;
 	pci_write_config_dword(bridge, PCI_MEMORY_BASE, l);
 
-	/* Set up PREF base/limit. */
-	l = (bus->resource[2]->start >> 16) & 0xfff0;
-	l |= bus->resource[2]->end & 0xfff00000;
-	pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE, l);
-
-	/* Check if we have VGA behind the bridge.
-	   Enable ISA in either case. */
-	l = (bus->resource[0]->flags & IORESOURCE_BUS_HAS_VGA) ? 0x0c : 0x04;
-	pci_write_config_word(bridge, PCI_BRIDGE_CONTROL, l);
+	/* Disable PREF memory range. */
+	pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE, 0x0000fff0);
+
+	pcibios_set_bridge_ctl(bridge);
+}
+
+/* Check whether the bridge supports I/O forwarding.
+   If not, its I/O base/limit register must be
+   read-only and read as 0. */
+static unsigned long __init
+pci_bridge_check_io(struct pci_dev *bridge)
+{
+	u16 io;
+
+	pci_read_config_word(bridge, PCI_IO_BASE, &io);
+	if (!io) {
+		pci_write_config_word(bridge, PCI_IO_BASE, 0xf0f0);
+		pci_read_config_word(bridge, PCI_IO_BASE, &io);
+		pci_write_config_word(bridge, PCI_IO_BASE, 0x0);
+	}
+	if (io)
+		return IORESOURCE_IO;
+	printk(KERN_WARNING "PCI: bridge %s does not support I/O forwarding!\n",
+				bridge->name);
+	return 0;
 }
 
 static void __init
@@ -181,26 +190,47 @@ pbus_assign_resources(struct pci_bus *bu
 		struct pci_bus *b;
 
 		ranges->found_vga = 1;
-		/* Propogate presence of the VGA to upstream bridges */
-		for (b = bus; b->parent; b = b->parent) {
-#if 0
-			/* ? Do we actually need to enable PF memory? */
-			b->resource[2]->start = 0;
-#endif
+		/* Propagate presence of the VGA to upstream bridges */
+		for (b = bus; b->parent; b = b->parent)
 			b->resource[0]->flags |= IORESOURCE_BUS_HAS_VGA;
-		}
 	}
 	for (ln=bus->children.next; ln != &bus->children; ln=ln->next) {
 		struct pci_bus *b = pci_bus_b(ln);
+		struct pci_dev *bridge = b->self;
+		int i;
 
+		/* Link bus resources to the bridge ones.  */
+		for(i=0; i<3; i++) {
+			b->resource[i] =
+				&bridge->resource[PCI_BRIDGE_RESOURCES+i];
+			b->resource[i]->name = bus->name;
+		}
+		b->resource[0]->flags |= pci_bridge_check_io(bridge);
+		b->resource[1]->flags |= IORESOURCE_MEM;
 		b->resource[0]->start = ranges->io_start = ranges->io_end;
 		b->resource[1]->start = ranges->mem_start = ranges->mem_end;
 
+		/* For now, set IO and MEM limits of this bus
+		   same as limits of its parent bus. */
+		b->resource[0]->end = bus->resource[0]->end;
+		b->resource[1]->end = bus->resource[1]->end;
+
 		pbus_assign_resources(b, ranges);
 
+		/* Adjust bus limits. */
 		b->resource[0]->end = ranges->io_end - 1;
 		b->resource[1]->end = ranges->mem_end - 1;
 
+		/* Add bridge resources to the resource tree. */
+		if (b->resource[0]->end > b->resource[0]->start &&
+		    request_resource(bus->resource[0], b->resource[0]) < 0)
+			printk(KERN_ERR "PCI: failed to request IO "
+					"for bus %d\n",	b->number);
+		if (b->resource[1]->end > b->resource[1]->start &&
+		    request_resource(bus->resource[0], b->resource[0]) < 0)
+			printk(KERN_ERR "PCI: failed to request MEM "
+					"for bus %d\n", b->number);
+
 		pci_setup_bridge(b);
 	}
 }
@@ -210,7 +240,6 @@ pci_assign_unassigned_resources(void)
 {
 	struct pbus_set_ranges_data ranges;
 	struct list_head *ln;
-	struct pci_dev *dev;
 
 	for(ln=pci_root_buses.next; ln != &pci_root_buses; ln=ln->next) {
 		struct pci_bus *b = pci_bus_b(ln);
@@ -222,28 +251,4 @@ pci_assign_unassigned_resources(void)
 		ranges.found_vga = 0;
 		pbus_assign_resources(b, &ranges);
 	}
-	pci_for_each_dev(dev) {
-		pdev_enable_device(dev);
-	}
-}
-
-/* Check whether the bridge supports I/O forwarding.
-   If not, its I/O base/limit register must be
-   read-only and read as 0. */
-unsigned long __init
-pci_bridge_check_io(struct pci_dev *bridge)
-{
-	u16 io;
-
-	pci_read_config_word(bridge, PCI_IO_BASE, &io);
-	if (!io) {
-		pci_write_config_word(bridge, PCI_IO_BASE, 0xf0f0);
-		pci_read_config_word(bridge, PCI_IO_BASE, &io);
-		pci_write_config_word(bridge, PCI_IO_BASE, 0x0);
-	}
-	if (io)
-		return IORESOURCE_IO;
-	printk(KERN_WARNING "PCI: bridge %s does not support I/O forwarding!\n",
-				bridge->name);
-	return 0;
 }
--- 2.4.6/drivers/pci/setup-res.c	Sun May 20 04:43:06 2001
+++ linux/drivers/pci/setup-res.c	Thu Jun 14 14:12:12 2001
@@ -25,7 +25,7 @@
 #include <linux/slab.h>
 
 
-#define DEBUG_CONFIG 1
+#define DEBUG_CONFIG 0
 #if DEBUG_CONFIG
 # define DBGC(args)     printk args
 #else
@@ -176,59 +176,4 @@ pdev_sort_resources(struct pci_dev *dev,
 			}
 		}
 	}
-}
-
-void __init
-pdev_enable_device(struct pci_dev *dev)
-{
-	u32 reg;
-	u16 cmd;
-	int i;
-
-	DBGC((KERN_ERR "PCI enable device: (%s)\n", dev->name));
-
-	pci_read_config_word(dev, PCI_COMMAND, &cmd);
-
-	for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-		struct resource *res = &dev->resource[i];
-
-		if (res->flags & IORESOURCE_IO)
-			cmd |= PCI_COMMAND_IO;
-		else if (res->flags & IORESOURCE_MEM)
-			cmd |= PCI_COMMAND_MEMORY;
-	}
-
-	/* Special case, disable the ROM.  Several devices act funny
-	   (ie. do not respond to memory space writes) when it is left
-	   enabled.  A good example are QlogicISP adapters.  */
-
-	if (dev->rom_base_reg) {
-		pci_read_config_dword(dev, dev->rom_base_reg, &reg);
-		reg &= ~PCI_ROM_ADDRESS_ENABLE;
-		pci_write_config_dword(dev, dev->rom_base_reg, reg);
-		dev->resource[PCI_ROM_RESOURCE].flags &= ~PCI_ROM_ADDRESS_ENABLE;
-	}
-
-	/* All of these (may) have I/O scattered all around and may not
-	   use I/O base address registers at all.  So we just have to
-	   always enable IO to these devices.  */
-	if ((dev->class >> 8) == PCI_CLASS_NOT_DEFINED
-	    || (dev->class >> 8) == PCI_CLASS_NOT_DEFINED_VGA
-	    || (dev->class >> 8) == PCI_CLASS_STORAGE_IDE
-	    || (dev->class >> 16) == PCI_BASE_CLASS_DISPLAY) {
-		cmd |= PCI_COMMAND_IO;
-	}
-
-	/* ??? Always turn on bus mastering.  If the device doesn't support
-	   it, the bit will go into the bucket. */
-	cmd |= PCI_COMMAND_MASTER;
-
-	/* Set the cache line and default latency (32).  */
-	pci_write_config_word(dev, PCI_CACHE_LINE_SIZE,
-			(32 << 8) | (L1_CACHE_BYTES / sizeof(u32)));
-
-	/* Enable the appropriate bits in the PCI command register.  */
-	pci_write_config_word(dev, PCI_COMMAND, cmd);
-
-	DBGC((KERN_ERR "  cmd reg 0x%x\n", cmd));
 }
--- 2.4.6/arch/alpha/kernel/pci.c	Tue May 22 00:38:41 2001
+++ linux/arch/alpha/kernel/pci.c	Thu Jun 14 14:12:13 2001
@@ -24,6 +24,12 @@
 #include "proto.h"
 #include "pci_impl.h"
 
+#define DEBUG_CONFIG 0
+#if DEBUG_CONFIG
+# define DBGC(args)     printk args
+#else
+# define DBGC(args)
+#endif
 
 /*
  * Some string constants used by the various core logics. 
@@ -148,10 +154,8 @@ pcibios_align_resource(void *data, struc
 		/*
 		 * Put everything into 0x00-0xff region modulo 0x400
 		 */
-		if (start & 0x300) {
+		if (start & 0x300)
 			start = (start + 0x3ff) & ~0x3ff;
-			res->start = start;
-		}
 	}
 	else if	(res->flags & IORESOURCE_MEM) {
 		/* Make sure we start at our min on all hoses */
@@ -242,7 +246,7 @@ pcibios_fixup_device_resources(struct pc
 void __init
 pcibios_fixup_bus(struct pci_bus *bus)
 {
-	/* Propogate hose info into the subordinate devices.  */
+	/* Propagate hose info into the subordinate devices.  */
 
 	struct pci_controller *hose = bus->sysdata;
 	struct list_head *ln;
@@ -252,30 +256,27 @@ pcibios_fixup_bus(struct pci_bus *bus)
 		/* Root bus */
 		bus->resource[0] = hose->io_space;
 		bus->resource[1] = hose->mem_space;
-	} else {
-		/* This is a bridge. Do not care how it's initialized,
-		   just link its resources to the bus ones */
-		int i;
-
-		for(i=0; i<3; i++) {
-			bus->resource[i] =
-				&dev->resource[PCI_BRIDGE_RESOURCES+i];
-			bus->resource[i]->name = bus->name;
-		}
-		bus->resource[0]->flags |= pci_bridge_check_io(dev);
-		bus->resource[1]->flags |= IORESOURCE_MEM;
-		/* For now, propogate hose limits to the bus;
-		   we'll adjust them later. */
-		bus->resource[0]->end = hose->io_space->end;
-		bus->resource[1]->end = hose->mem_space->end;
-		/* Turn off downstream PF memory address range by default */
-		bus->resource[2]->start = 1024*1024;
-		bus->resource[2]->end = bus->resource[2]->start - 1;
 	}
-
 	for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) {
 		struct pci_dev *dev = pci_dev_b(ln);
-		if ((dev->class >> 8) != PCI_CLASS_BRIDGE_PCI)
+		u16 class = dev->class >> 8;
+		u16 cmd;
+
+		/* First, disable the device to avoid side
+		   effects of possibly overlapping I/O and
+		   memory ranges.
+		   Leave VGA enabled - for obvious reason. :-)
+		   Same with all sorts of bridges - they may
+		   have VGA behind them.  */
+		if (class != PCI_CLASS_DISPLAY_VGA &&
+		    class != PCI_CLASS_NOT_DEFINED_VGA &&
+		    class >> 8 != PCI_BASE_CLASS_BRIDGE) {
+			pci_read_config_word(dev, PCI_COMMAND, &cmd);
+			cmd &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY
+						| PCI_COMMAND_MASTER);
+			pci_write_config_word(dev, PCI_COMMAND, cmd);
+		}
+		if (class != PCI_CLASS_BRIDGE_PCI)
 			pcibios_fixup_device_resources(dev, bus);
 	}
 }
@@ -381,10 +382,81 @@ pcibios_set_master(struct pci_dev *dev)
 }
 
 void __init
+pcibios_set_bridge_ctl(struct pci_dev *bridge)
+{
+	u32 l;
+
+	/* Set default latency (32) for the secondary bus.  */
+	pci_write_config_byte(bridge, PCI_SEC_LATENCY_TIMER, 32);
+
+	/* Check if we have VGA behind the bridge.
+	   Enable ISA in either case. */
+	l = (bridge->resource[PCI_BRIDGE_RESOURCES + 0].flags &
+				IORESOURCE_BUS_HAS_VGA) ? 0x0c : 0x04;
+	pci_write_config_word(bridge, PCI_BRIDGE_CONTROL, l);
+}
+
+static void __init
+pcibios_postalloc_fixup(struct pci_dev *dev)
+{
+	u32 reg;
+	u16 cmd;
+	int i;
+
+	DBGC((KERN_INFO "PCI enable device: (%s)\n", dev->name));
+
+	pci_read_config_word(dev, PCI_COMMAND, &cmd);
+
+	for (i = 0; i < PCI_NUM_RESOURCES; i++) {
+		struct resource *res = &dev->resource[i];
+
+		if (res->flags & IORESOURCE_IO)
+			cmd |= PCI_COMMAND_IO;
+		else if (res->flags & IORESOURCE_MEM)
+			cmd |= PCI_COMMAND_MEMORY;
+	}
+
+	/* Special case, disable the ROM.  Several devices act funny
+	   (ie. do not respond to memory space writes) when it is left
+	   enabled.  A good example are QlogicISP adapters.  */
+
+	if (dev->rom_base_reg) {
+		pci_read_config_dword(dev, dev->rom_base_reg, &reg);
+		reg &= ~PCI_ROM_ADDRESS_ENABLE;
+		pci_write_config_dword(dev, dev->rom_base_reg, reg);
+		dev->resource[PCI_ROM_RESOURCE].flags &= ~PCI_ROM_ADDRESS_ENABLE;
+	}
+
+	/* All of these (may) have I/O scattered all around and may not
+	   use I/O base address registers at all.  So we just have to
+	   always enable IO to these devices.  */
+	if ((dev->class >> 8) == PCI_CLASS_NOT_DEFINED
+	    || (dev->class >> 8) == PCI_CLASS_NOT_DEFINED_VGA
+	    || (dev->class >> 8) == PCI_CLASS_STORAGE_IDE
+	    || (dev->class >> 16) == PCI_BASE_CLASS_DISPLAY) {
+		cmd |= PCI_COMMAND_IO;
+	}
+
+	/* ??? Always turn on bus mastering.  If the device doesn't support
+	   it, the bit will go into the bucket. */
+	cmd |= PCI_COMMAND_MASTER;
+
+	/* Set the cache line and default latency (32).  */
+	pci_write_config_word(dev, PCI_CACHE_LINE_SIZE,
+			(32 << 8) | (L1_CACHE_BYTES / sizeof(u32)));
+
+	/* Enable the appropriate bits in the PCI command register.  */
+	pci_write_config_word(dev, PCI_COMMAND, cmd);
+
+	DBGC((KERN_INFO "  cmd reg 0x%x\n", cmd));
+}
+
+void __init
 common_init_pci(void)
 {
 	struct pci_controller *hose;
 	struct pci_bus *bus;
+	struct pci_dev *dev;
 	int next_busno;
 
 	/* Scan all of the recorded PCI controllers.  */
@@ -398,6 +470,9 @@ common_init_pci(void)
 	}
 
 	pci_assign_unassigned_resources();
+	pci_for_each_dev(dev) {
+		pcibios_postalloc_fixup(dev);
+	}
 	pci_fixup_irqs(alpha_mv.pci_swizzle, alpha_mv.pci_map_irq);
 }
 




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Headless workstation?
Date: Mon, 25 Jun 2001 10:14:19 -0600
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             <20010625033537.09C1D37D2C@carmen.fc.hp.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:11430

Matt Taggart wrote:
> Having soft-power under linux would be really cool, but I'm not sure what
> state its in currently.

I've already dug up the needed info and handed that to some folks
who already have NDA. So i expect "soft power" switch to work
at some point.  :^)

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Markus Ungermann <m.ungermann@tuxhausen.de>
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Subject: [parisc-linux] 712/60: No login, only crashes
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Xref: news.gmane.org gmane.linux.ports.parisc:11431

Hi,

i get an HP 712/60 last week, it has an installed Debian and this works
good. But the HD is to little, only 520MB (with 128MB Swap).

Then i installed PA-Linux 0.9 on a 3.2GB-HD (Quantum Fireball 3200S ),
but after the first reboot:
- the system starts and 
- the Init-Process works, 
- it enter Runlevel 2
- then instead of a login i get an Crash
I get a Dump list (How can i print/copy this?) and the following line:

Kernel Fault Code 26 regs(differents everytime)


Ok, i use another HD 2.1GB (IBM DFRS ...) but, the same ....

I have Bootmon 1.2, i tries to update it (with a tape) but it didn't
work.

If fsck failed, and i must login as root, i have no Problems, it seens
to be an error with the login-script.

Can someone help me to login ?
Or how can i boot into single mode (there is no lilo ;-))) ?

Is the powersupply strong enough for a second intern HD (then i boot
from the 520MB und use the Quantum as /usr) ?


-- 
cu Markus Ungermann

       Look at my website: http://www.tuxhausen.de
                     !! Ask me for my PGP-Key !
		     
	`Software is like sex; it's best when its free
		 ->> Linus B. Torvalds




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From: Peter Weilbacher <weilbach@uni-sw.gwdg.de>
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Subject: Re: [parisc-linux] 712/60: No login, only crashes
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Hi Markus!

On Mon, 25 Jun 2001, Markus Ungermann wrote:

> Then i installed PA-Linux 0.9 on a 3.2GB-HD (Quantum Fireball 3200S ),
> but after the first reboot:
> - the system starts and
> - the Init-Process works,
> - it enter Runlevel 2
> - then instead of a login i get an Crash
> I get a Dump list (How can i print/copy this?) and the following line:
>
> Kernel Fault Code 26 regs(differents everytime)

I had the same error when I installed it, I think it is in the known
bugs on the webpage. The developers told me to be patient, those are
bugs in the graphical STI interface.

A perhaps related problem is that if you try to go down further than
the end of the file in vi, it crashes with a similar dump screen.

> Can someone help me to login ?
> Or how can i boot into single mode (there is no lilo ;-))) ?

- Press <escape> before booting.
- search for the boot device:
	search scsi
- start the ipl:
	boot <scsi-dev> ipl
- edit the last parameter and add with a space:
	" init=1" or " init=/bin/sh"
Starting the IPL boot should get you booted. You should then perhaps
edit /etc/inittab before trying further.

Can anyone tell me, which script in /etc/init.d starts the virtual
consoles? It's none from the ones in /etc/rc1.d/...

> Is the powersupply strong enough for a second intern HD (then i boot
> from the 520MB und use the Quantum as /usr) ?

Just try it? There is a special room for a second disk in my
machine, which I cannot use because the other disks I have get too
hot.

Gruesse,
	Peter.






From - Thu Nov 08 21:18:11 2018
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] XFree86, sti bmode/wmode merge
Date: Tue, 26 Jun 2001 01:49:37 +0200
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Cc: parisc-linux@parisc-linux.org
To: Yves Bodack <ybodack@stud.fh-heilbronn.de>
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In-Reply-To: <005d01c0fd8e$c29fcd90$1f96078d@stuwo.fhheilbronn.de>; from ybodack@stud.fh-heilbronn.de on Mon, Jun 25, 2001 at 05:51:25PM +0200
Xref: news.gmane.org gmane.linux.ports.parisc:11433

On Mon, Jun 25, 2001 at 05:51:25PM +0200, Yves Bodack wrote:
> I was just trying to set up an xserver on my 712/60, but i'm not too
> experienced in these things and failed. Could you give me some hints on what
> you have installed and what the tweaking was, you did? Or may be, there is a
> web ressource i havn't found yet.

you need:

xbase-clients
xfont-base
xserver-xfree86
xterm

and a window manager (since fvwm* wasn't avaiable, I took vtwm).

And then I took the XF86Config from my notebook, where I'm alreay running
XFree 4.0.2 (server only so far), put it in place (/etc/X11/XF86Config) and
defined a fbdev device. I've attached my current XF86Config from the 712.
To use this XF86Config you also need a new kernel with PS/2 mouse support.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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--Kj7319i9nmIyA2yE
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Argl, forgot the attachment once again, sorry.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]

--Kj7319i9nmIyA2yE
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=XF86Config

# File generated by xf86config.

#
# Copyright (c) 1999 by The XFree86 Project, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
# THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
# OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
# 
# Except as contained in this notice, the name of the XFree86 Project shall
# not be used in advertising or otherwise to promote the sale, use or other
# dealings in this Software without prior written authorization from the
# XFree86 Project.
#

# **********************************************************************
# Refer to the XF86Config(4/5) man page for details about the format of 
# this file.
# **********************************************************************

# **********************************************************************
# Module section -- this  section  is used to specify
# which dynamically loadable modules to load.
# **********************************************************************
#
Section "Module"

# This loads the DBE extension module.

    Load        "dbe"  	# Double buffer extension

# This loads the miscellaneous extensions module, and disables
# initialisation of the XFree86-DGA extension within that module.
    SubSection  "extmod"
      Option    "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection

# This loads the Type1 and FreeType font modules
    Load        "type1"
    Load        "freetype"

# This loads the GLX module
#    Load       "glx"

EndSection

# **********************************************************************
# Files section.  This allows default font and rgb paths to be set
# **********************************************************************

Section "Files"

# The location of the RGB database.  Note, this is the name of the
# file minus the extension (like ".txt" or ".db").  There is normally
# no need to change the default.

    RgbPath	"/usr/X11R6/lib/X11/rgb"

# Multiple FontPath entries are allowed (which are concatenated together),
# as well as specifying multiple comma-separated entries in one FontPath
# command (or a combination of both methods)
# 
# If you don't have a floating point coprocessor and emacs, Mosaic or other
# programs take long to start up, try moving the Type1 and Speedo directory
# to the end of this list (or comment them out).
# 

#    FontPath   "/usr/X11R6/lib/X11/fonts/local/"
    FontPath   "/usr/X11R6/lib/X11/fonts/misc/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/Type1/"
    FontPath   "/usr/X11R6/lib/X11/fonts/Speedo/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/"

# The module search path.  The default path is shown here.

#    ModulePath "/usr/X11R6/lib/modules"

EndSection

# **********************************************************************
# Server flags section.
# **********************************************************************

Section "ServerFlags"

# Uncomment this to cause a core dump at the spot where a signal is 
# received.  This may leave the console in an unusable state, but may
# provide a better stack trace in the core dump to aid in debugging

#    Option "NoTrapSignals"

# Uncomment this to disable the <Crtl><Alt><BS> server abort sequence
# This allows clients to receive this key event.

#    Option "DontZap"

# Uncomment this to disable the <Crtl><Alt><KP_+>/<KP_-> mode switching
# sequences.  This allows clients to receive these key events.

#    Option "Dont Zoom"

# Uncomment this to disable tuning with the xvidtune client. With
# it the client can still run and fetch card and monitor attributes,
# but it will not be allowed to change them. If it tries it will
# receive a protocol error.

#    Option "DisableVidModeExtension"

# Uncomment this to enable the use of a non-local xvidtune client. 

#    Option "AllowNonLocalXvidtune"

# Uncomment this to disable dynamically modifying the input device
# (mouse and keyboard) settings. 

#    Option "DisableModInDev"

# Uncomment this to enable the use of a non-local client to
# change the keyboard or mouse settings (currently only xset).

#    Option "AllowNonLocalModInDev"

EndSection

# **********************************************************************
# Input devices
# **********************************************************************

# **********************************************************************
# Core keyboard's InputDevice section
# **********************************************************************

Section "InputDevice"

    Identifier	"Keyboard1"
    Driver	"Keyboard"
# For most OSs the protocol can be omitted (it defaults to "Standard").
# When using XQUEUE (only for SVR3 and SVR4, but not Solaris),
# uncomment the following line.

#    Option     "Protocol"      "Xqueue"

    Option "AutoRepeat" "500 30"

# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
#    Option	"Xleds"      "1 2 3"

#    Option "LeftAlt"     "Meta"
#    Option "RightAlt"    "ModeShift"

# To customise the XKB settings to suit your keyboard, modify the
# lines below (which are the defaults).  For example, for a non-U.S.
# keyboard, you will probably want to use:
#    Option "XkbModel"    "pc102"
# If you have a US Microsoft Natural keyboard, you can use:
#    Option "XkbModel"    "microsoft"
#
# Then to change the language, change the Layout setting.
# For example, a german layout can be obtained with:
#    Option "XkbLayout"   "de"
# or:
#    Option "XkbLayout"   "de"
#    Option "XkbVariant"  "nodeadkeys"
#
# If you'd like to switch the positions of your capslock and
# control keys, use:
#    Option "XkbOptions"  "ctrl:swapcaps"

# These are the default XKB settings for XFree86
#    Option "XkbRules"    "xfree86"
#    Option "XkbModel"    "pc101"
#    Option "XkbLayout"   "us"
#    Option "XkbVariant"  ""
#    Option "XkbOptions"  ""

#    Option "XkbDisable"

    Option "XkbRules"	"xfree86"
    Option "XkbModel"	"pc101"
    Option "XkbLayout"	"us"
#    Option "XkbVariant"	"nodeadkeys"

EndSection


# **********************************************************************
# Core Pointer's InputDevice section
# **********************************************************************

Section "InputDevice"

# Identifier and driver

    Identifier	"Mouse1"
    Driver	"mouse"
    Option "Protocol"    "PS/2"
    Option "Device"      "/dev/mouse"

# When using XQUEUE, comment out the above two lines, and uncomment
# the following line.

#    Option "Protocol"	"Xqueue"

# Baudrate and SampleRate are only for some Logitech mice. In
# almost every case these lines should be omitted.

#    Option "BaudRate"	"9600"
#    Option "SampleRate"	"150"

# Emulate3Buttons is an option for 2-button Microsoft mice
# Emulate3Timeout is the timeout in milliseconds (default is 50ms)

    Option "Emulate3Buttons"
    Option "Emulate3Timeout"    "100"

# ChordMiddle is an option for some 3-button Logitech mice

#    Option "ChordMiddle"

EndSection


# **********************************************************************
# Other input device sections 
# this is optional and is required only if you
# are using extended input devices.  This is for example only.  Refer
# to the XF86Config man page for a description of the options.
# **********************************************************************
#
# Section "InputDevice" 
#    Identifier  "Mouse2"
#    Driver      "mouse"
#    Option      "Protocol"      "MouseMan"
#    Option      "Device"        "/dev/mouse2"
# EndSection
#
# Section "InputDevice"
#    Identifier "spaceball"
#    Driver     "magellan"
#    Option     "Device"        "/dev/cua0"
# EndSection
#
# Section "InputDevice"
#    Identifier "spaceball2"
#    Driver     "spaceorb"
#    Option     "Device"        "/dev/cua0"
# EndSection
#
# Section "InputDevice"
#    Identifier "touchscreen0"
#    Driver     "microtouch"
#    Option     "Device"        "/dev/ttyS0"
#    Option     "MinX"          "1412"
#    Option     "MaxX"          "15184"
#    Option     "MinY"          "15372"
#    Option     "MaxY"          "1230"
#    Option     "ScreenNumber"  "0"
#    Option     "ReportingMode" "Scaled"
#    Option     "ButtonNumber"  "1"
#    Option     "SendCoreEvents"
# EndSection
#
# Section "InputDevice"
#    Identifier "touchscreen1"
#    Driver     "elo2300"
#    Option     "Device"        "/dev/ttyS0"
#    Option     "MinX"          "231"
#    Option     "MaxX"          "3868"
#    Option     "MinY"          "3858"
#    Option     "MaxY"          "272"
#    Option     "ScreenNumber"  "0"
#    Option     "ReportingMode" "Scaled"
#    Option     "ButtonThreshold"       "17"
#    Option     "ButtonNumber"  "1"
#    Option     "SendCoreEvents"
# EndSection

# **********************************************************************
# Monitor section
# **********************************************************************

# Any number of monitor sections may be present

Section "Monitor"

    Identifier  "lcd"

# HorizSync is in kHz unless units are specified.
# HorizSync may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY.  REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

    HorizSync   31.5 - 48.5

#    HorizSync	30-64         # multisync
#    HorizSync	31.5, 35.2    # multiple fixed sync frequencies
#    HorizSync	15-25, 30-50  # multiple ranges of sync frequencies

# VertRefresh is in Hz unless units are specified.
# VertRefresh may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY.  REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

    VertRefresh 50-100

EndSection


# **********************************************************************
# Graphics device section
# **********************************************************************

# Any number of graphics device sections may be present

# Standard VGA Device:

Section "Device"
    Identifier	"Standard VGA"
    VendorName	"Unknown"
    BoardName	"Unknown"

# The chipset line is optional in most cases.  It can be used to override
# the driver's chipset detection, and should not normally be specified.

#    Chipset	"generic"

# The Driver line must be present.  When using run-time loadable driver
# modules, this line instructs the server to load the specified driver
# module.  Even when not using loadable driver modules, this line
# indicates which driver should interpret the information in this section.

    Driver     "fbdev"
# The BusID line is used to specify which of possibly multiple devices
# this section is intended for.  When this line isn't present, a device
# section can only match up with the primary video device.  For PCI
# devices a line like the following could be used.  This line should not
# normally be included unless there is more than one video device
# intalled.

#    BusID      "PCI:0:10:0"

#    VideoRam	256

#    Clocks	25.2 28.3

EndSection

# Device configured by xf86config:

Section "Device"
    Identifier  "fbdev"
    Driver      "fbdev"
    #VideoRam    8192
    # Insert Clocks lines here if appropriate
EndSection


# **********************************************************************
# Screen sections
# **********************************************************************

# Any number of screen sections may be present.  Each describes
# the configuration of a single screen.  A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.
Section "Screen"
    Identifier  "Screen 1"
    Device      "fbdev"
    Monitor     "lcd"
    DefaultDepth 8

    Subsection "Display"
        Depth       8
        Modes       "640x480" # "800x600" "1024x768" "1280x1024"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes       "640x480" "800x600" "1024x768" "1280x1024"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes       "1024x768"
        ViewPort    0 0
    EndSubsection
EndSection

# **********************************************************************
# ServerLayout sections.
# **********************************************************************

# Any number of ServerLayout sections may be present.  Each describes
# the way multiple screens are organised.  A specific ServerLayout
# section may be specified from the X server command line with the
# "-layout" option.  In the absence of this, the first section is used.
# When now ServerLayout section is present, the first Screen section
# is used alone.

Section "ServerLayout"

# The Identifier line must be present
    Identifier  "Simple Layout"

# Each Screen line specifies a Screen section name, and optionally
# the relative position of other screens.  The four names after
# primary screen name are the screens to the top, bottom, left and right
# of the primary screen.  In this example, screen 2 is located to the
# right of screen 1.

    Screen "Screen 1"

# Each InputDevice line specifies an InputDevice section name and
# optionally some options to specify the way the device is to be
# used.  Those options include "CorePointer", "CoreKeyboard" and
# "SendCoreEvents".

    InputDevice "Mouse1" "CorePointer"
    InputDevice "Keyboard1" "CoreKeyboard"

EndSection


--Kj7319i9nmIyA2yE--




From - Thu Nov 08 21:18:11 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ISO packages list
Date: Mon, 25 Jun 2001 18:34:53 -0600
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To: parisc-linux@parisc-linux.org
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Xref: news.gmane.org gmane.linux.ports.parisc:11435

Hi palinux'ers,

For the 0.9 release I sent the list of packages that would go on the ISO to 
this list for review. As we prepare for the next point release(0.9.1?) I have 
updated it again. I decided to put the list in pehc cvs under 
build-tools/packagelist. Here is what has changed from the 0.9 list

Added
-----
lsof (standard)
mtr-tiny (standard)
vacation (standard)
libgcc1 (new gcc-3.0)
libnss-lwres (new bind)
dpkg-dev
squid
wget
cowsay (fun)
moon-buggy (fun)
xgalaga (fun, X testing)

Removed
-------
netkit-rpc (conflicts with new libc6)


All future changes will be explained in the cvs commit logs(not here).

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






From - Thu Nov 08 21:18:12 2018
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From: Tim Burgess <burgesstim@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP9000 - 822 - a gift?
Date: Mon, 25 Jun 2001 18:30:52 -0700 (PDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:11436

I just was 'gifted' a hp9000 822 with 
2 off 28652-6001
40299B
C2282A STD
The back of the box is checked 'int tape ext dev'


A quick look round suggests this is a silverfox - low.
But I cant seem to id the CPU etc.

Am I going to get linux up on this baby or the install
hpux?

Tim Burgess

=====
Tim Burgess
burgesstim@yahoo.com

__________________________________________________
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From - Thu Nov 08 21:18:12 2018
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From: Stan Sieler <sieler@allegro.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP9000 - 822 - a gift?
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Re:

> I just was 'gifted' a hp9000 822 with 

A very old, and very slow, PA-RISC 1.0 (?) HP 9000.
Probably not likely to support boot-from-SCSI.
 
> A quick look round suggests this is a silverfox - low.
> But I cant seem to id the CPU etc.

?
 
> Am I going to get linux up on this baby or the install
> hpux?

Not linux, but HP-UX should work.  I can't recall if 11.00
will run on it, but certainly earlier versions will.

IIRC, it's an interesting box because you can stick a lot
of memory in it ... slots in the front *and* slots in the
rear.  Later systems would accept far less memory (of course,
most later systems had higher density memory boards/SIMMs :)

Also, I think the memory boards had a proprietary HP controller
chip on them, with the result that no one made third party memory
for a long time.  (I saw one where the vendor had taken the chip
from a low density HP board and put it on their own high density
board!)   In the back of my mind something is saying "Datagate
eventually figured out how to make boards for it", but I'm not positive.

My notes (as best I can read a hex dump of a spreadsheet ... I
don't have Excel on my home machine :) says that the CPU is a 
25 MHz CPU.
 
-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com




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Subject: Re: [parisc-linux] HP9000 - 822 - a gift?
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> > I just was 'gifted' a hp9000 822 with
>
> A very old, and very slow, PA-RISC 1.0 (?) HP 9000.
> Probably not likely to support boot-from-SCSI.
>

This machine contains a PA-RISC 1.0 cpu.  Not only will you not be able to
boot it from a SCSI device on parisc linux, you will not be able to boot
it at all.  We only support PA-RISC 1.1 cpu's and higher (and still are
missing some support for PA-RISC 1.1a cpu's, re: a proper trap 18 handler
and a privileged register trap handler to support reading cr27, two
items I intend to get around to eventually).

Note, that although the core machine dependent PA-RISC support code
supports PA-RISC 1.1 and better, we still don't support many older
machines due to proprietary devices with unavailable documentation, etc.
However, there is a better chance that we would eventually support those
than support PA-RISC 1.0 cpu's.

Even given the documentation, I don't think we will ever support PA-RISC
1.0 cpu's.  There are just too many differences that make supporting those
cpu's a pain.  Also, support for an obscure parisc device can usually be
isolated in a separate file or two, whereas adding support for PA-RISC 1.0
would involve changes throughout the machine dependent code in arch/parisc.

In case someone who is reading this is curious, here is a list of
differences that I can think of off the top of my head.  There are
probably others that I have either forgotten or are not aware of.  I
didn't begin working on parisc based machines until the 700 series was
created, which used parisc 1.1a cpus (Although I did follow some of the
earlier technical issues, since I was working for HP at the time, doing
HP-UX kernel development for HP 9000 Series 200/300/400 m68k based
machines).

	DIFFERENCES BETWEEN PARISC 1.0 and later PARISC CPU'S:

        1) No support for shadow registers and their associated rfir
        instruction.  This would mean that a new set of tlb miss handlers
        would need to be written.  Other changes in the interrupt path and
        the non access cache flush emulation code would be required.

	2) Only 16 floating point registers. Would require some
	(albeit fairly simple) changes in the floating point save/restore
	code. This would also require that all commands/libraries that
	use floating point be recompiled with options that let the
	compiler know these floating point registers are not available
	(or add support to the kernel to emulate them! ... ugh).

        3) A larger variety in the support of floating point instructions,
        including some machines that didn't even have an fpu.  Would
        require additional floating point emulation support in the kernel.

        4) 2K Page size rather than 4K.  Would require a variety of
        changes in the machine dependent VM support.  Ideally this
        shouldn't be very hard, but since we haven't yet enabled support
        for other page sizes, there are probably a fair number of
        hardwired 4K page size code dependencies.

        5) Inability to disable space register hashing.  I'm not sure if
        all PA-RISC 1.0 cpu's even supported space register hashing, but I
        believe that some of the ones that do support it have no way of
        turning it off.  This may be the single hardest problem to work
        around.  Very early in the parisc linux implementation we decided
        to use a "flat" address space, i.e. sr4-sr7 are all set to the
        same value.  This simplified a lot of things, and this assumption
        is now fairly embedded in the kernel, compilers, binutils, etc.
        In order to be able to support shared objects (mmap using
        MAP_SHARED, Sys V shared memory, etc) with space register hashing
        enabled, you need to dedicate at least a quadrant of the virtual
        address space to shared mappings, i.e. some space registers would
        be set to a per process private value, whereas as at least one
        would need to be set to a common shared value (this is what HP-UX
        does).  For starters, the address allocation code would need to be
        changed to reflect that.  But that would just be the beginning ...

In summary, I just don't think supporting PA-RISC 1.0 cpu's is worth the
effort.  Note that you can get some newer (i.e. newer than PA-RISC 1.0,
but still quite old!) PA-RISC machines for less than $50.

> > Am I going to get linux up on this baby or the install
> > hpux?
>
> Not linux, but HP-UX should work.  I can't recall if 11.00
> will run on it, but certainly earlier versions will.

As far as HP-UX goes, there is a difference between whether or not it
works and whether or not it is officially supported.  When HP drops
official support it just means that the engineers are free to make design
decisions on newer HP-UX releases that don't need to take into account
support of the older boxes.  We don't have a policy of removing the old
code (see bloat reference below :-)), although that usually happens over
time as the "owners" of various files modify them.  For example, I believe
that 11.0 dropped official support for PARISC 1.1a cpu's, but I believe it
still worked.  Official support for PARISC 1.0 cpu's was dropped at an
earlier date, but I don't know when HP-UX might have stopped working on
those earlier machines (for all I know it may still work).

However, HP-UX, in its attempt to try to meet required features for a wide
variety of customers, continues to bloat.  The size increase from 9.0 to
10.x and from 10.x to 11.x has been significant.  So, if you really want
to get that 822 running reasonably well, I'd try to get as old a version
of HP-UX that you can.  A 9.0 based release will probably give you the
best compromise between features and size.

John Marvin
jsm@fc.hp.com

P.S.  Perhaps there are other ways you can use that 822.  Do you own a
boat? :-)




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From: Christoph Plattner <christoph.plattner@alcatel.at>
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Subject: Re: [parisc-linux] 712/60: No login, only crashes
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There is no script starting the virtual console, it is kernel stuff.
But you can remove the login (any thing like "*getty") in the bottom of
the inittab, but then you will not have any login !!

The devices /dev/tty1 up to /dev/tty9 (I think) are the virtual
consoles.
The only way to use the full machine without virtual consoles is the
use of the serial console !
The kernel line must say "console=ttyS0" and in the inittab the "*getty"
should have ttyS0 as paramter ....

With friendly regards
	Christoph P.


Peter Weilbacher wrote:
> 
> Hi Markus!
> 
> On Mon, 25 Jun 2001, Markus Ungermann wrote:
> 
> > Then i installed PA-Linux 0.9 on a 3.2GB-HD (Quantum Fireball 3200S ),
> > but after the first reboot:
> > - the system starts and
> > - the Init-Process works,
> > - it enter Runlevel 2
> > - then instead of a login i get an Crash
> > I get a Dump list (How can i print/copy this?) and the following line:
> >
> > Kernel Fault Code 26 regs(differents everytime)
> 
> I had the same error when I installed it, I think it is in the known
> bugs on the webpage. The developers told me to be patient, those are
> bugs in the graphical STI interface.
> 
> A perhaps related problem is that if you try to go down further than
> the end of the file in vi, it crashes with a similar dump screen.
> 
> > Can someone help me to login ?
> > Or how can i boot into single mode (there is no lilo ;-))) ?
> 
> - Press <escape> before booting.
> - search for the boot device:
>         search scsi
> - start the ipl:
>         boot <scsi-dev> ipl
> - edit the last parameter and add with a space:
>         " init=1" or " init=/bin/sh"
> Starting the IPL boot should get you booted. You should then perhaps
> edit /etc/inittab before trying further.
> 
> Can anyone tell me, which script in /etc/init.d starts the virtual
> consoles? It's none from the ones in /etc/rc1.d/...
> 
> > Is the powersupply strong enough for a second intern HD (then i boot
> > from the 520MB und use the Quantum as /usr) ?
> 
> Just try it? There is a special room for a second disk in my
> machine, which I cannot use because the other disks I have get too
> hot.
> 
> Gruesse,
>         Peter.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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From: Simeon Walker <simeon@sbs.bangor.ac.uk>
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Subject: Re: [parisc-linux] 712/60: No login, only crashes
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To: Markus Ungermann <m.ungermann@tuxhausen.de>
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Hi,
  i saw this problem too a few weeks ago (search the list for the thread
'[parisc-linux] Re: Kernel faults on boot'). If you get into run level
one 
(as one of the other replies here shows) you can the finish the install. 
If you download the kernel source from cvs and compile/install that
then you should be able to boot ok. It worked for me.

Regards,
Simeon

Markus Ungermann wrote:
> 
> Hi,
> 
> i get an HP 712/60 last week, it has an installed Debian and this works
> good. But the HD is to little, only 520MB (with 128MB Swap).
> 
> Then i installed PA-Linux 0.9 on a 3.2GB-HD (Quantum Fireball 3200S ),
> but after the first reboot:
> - the system starts and
> - the Init-Process works,
> - it enter Runlevel 2
> - then instead of a login i get an Crash
> I get a Dump list (How can i print/copy this?) and the following line:
> 
> Kernel Fault Code 26 regs(differents everytime)
> 
> Ok, i use another HD 2.1GB (IBM DFRS ...) but, the same ....
> 
> I have Bootmon 1.2, i tries to update it (with a tape) but it didn't
> work.
> 
> If fsck failed, and i must login as root, i have no Problems, it seens
> to be an error with the login-script.
> 
> Can someone help me to login ?
> Or how can i boot into single mode (there is no lilo ;-))) ?
> 
> Is the powersupply strong enough for a second intern HD (then i boot
> from the 520MB und use the Quantum as /usr) ?
> 
> --
> cu Markus Ungermann
> 
>        Look at my website: http://www.tuxhausen.de
>                      !! Ask me for my PGP-Key !
> 
>         `Software is like sex; it's best when its free
>                  ->> Linus B. Torvalds
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux


-- 
Simeon Walker,                      email: simeon@sbs.bangor.ac.uk
School of Biological Sciences,      phone: +44 (0)1248 383702
University of Wales, Bangor,        fax: +44 (0)1248 382569
Gwynedd, LL57 2UW, UK.              www: http://biology.bangor.ac.uk/




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Subject: Re: [parisc-linux] HP9000 - 822 - a gift?
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Stan Sieler wrote:
> > I just was 'gifted' a hp9000 822 with 
> > Am I going to get linux up on this baby or the install
> > hpux?
> 
> Not linux, but HP-UX should work.  I can't recall if 11.00
> will run on it, but certainly earlier versions will.

11.0 might but you can bet it wasn't tested by the core HPUX team.
822 has CIO slots. Officially support for CIO was dropped
in early 10.x timeframe - 10.10 I think. Later versions might still
work but it's a "don't call HP when it fails" kind of thing.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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John Marvin wrote:
...
> > Not linux, but HP-UX should work.  I can't recall if 11.00
> > will run on it, but certainly earlier versions will.
> 
> As far as HP-UX goes, there is a difference between whether or not it
> works and whether or not it is officially supported.  When HP drops
> official support it just means that the engineers are free to make design
> decisions on newer HP-UX releases that don't need to take into account
> support of the older boxes.  We don't have a policy of removing the old
> code (see bloat reference below :-)), although that usually happens over
> time as the "owners" of various files modify them.

Yup - I see it the same way.

> For example, I believe
> that 11.0 dropped official support for PARISC 1.1a cpu's,

AFAIK, 712's are officially supported on 11.0 and 11.11.

> but I believe it
> still worked.  Official support for PARISC 1.0 cpu's was dropped at an
> earlier date, but I don't know when HP-UX might have stopped working on
> those earlier machines (for all I know it may still work).

I think it was the same time that CIO bus support was dropped since
both (CPU/Bus type) was the same class of machines.

> However, HP-UX, in its attempt to try to meet required features for a wide
> variety of customers, continues to bloat.  The size increase from 9.0 to
> 10.x and from 10.x to 11.x has been significant.  So, if you really want
> to get that 822 running reasonably well, I'd try to get as old a version
> of HP-UX that you can.  A 9.0 based release will probably give you the
> best compromise between features and size.

Again John is right. I'd reccomend 9.04 since that had the most
support for the 9.x releases.

> John Marvin
> jsm@fc.hp.com
> 
> P.S.  Perhaps there are other ways you can use that 822.  Do you own a
> boat? :-)

The same thought crossed my mind. And we probably still have a
few 712's or 715's to give away to folks interested in doing
developement - either applications or kernel.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Al Budriunas <budriuna@cacr.caltech.edu>
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Subject: Re: [parisc-linux] Error creating PALO
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To: Matt Taggart <taggart@carmen.fc.hp.com>
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On Fri, 22 Jun 2001, Matt Taggart wrote:

> Al Budriunas writes...
> 
> > Would you please share (or point me to) the procedure to change PALO
> > parititon into f0 type?
> 
> 1.) Run cfdisk
> 2.) Select the partition you want to change using the up/down arrows.
> 3.) Select "Type"(it may prompt you to hit space when listing the types)
> 4.) Enter "f0"
> 5.) Select "Write" to write the partition table to the disk
> 6.) Select "Quit" to exit cfdisk.
> 
> If you're still having problems then we may have a bug.
> 

Matt,

I didn't realize that an unlisted type could be entered in cfdisk, but it
worked! It was listed as "unkown (f0)" in the parition information. The
PALO installation phase completed this time, and the system booted from
the hard drive for the first time.

Thanks for the quick replies.

Regards,

Al

------------------------------------------------------------------
Al Budriunas                            email: budriuna@rsn.hp.com  
Hewlett Packard Co.                     voice: 310-535-2884
Los Angeles, Ca.                        
------------------------------------------------------------------





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I am experiencing the same failure reported by E. Frank Ball to this group
on June 6:

=================
I then tried to run "dpkg-reconfigure base-config".  It got to where it
is supposed to install the packages and died with a message:  failed
running script /usr/sbin/dpkg-preconfigure --apt || true
apt-utils is not installed.
==================

My install source is CDROM created from the June iso image. Has anyone
sorted this out yet?

Thanks,

Al  

------------------------------------------------------------------
Al Budriunas                            email: budriuna@rsn.hp.com  
Hewlett Packard Co.                     voice: 310-535-2884
Los Angeles, Ca.                        
------------------------------------------------------------------






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Subject: [parisc-linux] rbootd for HP715/50
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We are trying to use rbootd to boot up HP715/50 machines. The machine we 
are using is running RedHat 7.1. We downloaded
the rbootd files from
ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/rbootd-2.0-2.tar.gz

How can we run it so that the hp box can find it when it boot. how can we
change rboot.conf file to make it work.

Or is there a manual/ instruction for it?

thanks,






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From: Donald Scobbie <dscobbie@blueyonder.co.uk>
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Subject: [parisc-linux] External SCSI Disk
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I attached an external SCSI disk to my 712/80 which has the
palinux-0.9 32 bit serial distribution installed on the internal
disk:

BOOT_ADMIN> sea

Searching for potential boot device.
This may take several minutes.

To discontinue, press ESCAPE.

   Device Path              Device Type
   -----------              -----------
   scsi.6.0                 QUANTUM FIREBALL1050S
   scsi.2.0                 SEAGATE ST32151N

BOOT_ADMIN> boo

Can anyone guess what happened next? 

SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c710 (SCSI-ID 7) at f0106100, IRQ 86, options 0
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: Good, target data areas are dma coherent
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: SEAGATE   Model: ST32151N          Rev: HP02
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: QUANTUM   Model: FIREBALL1050S     Rev: 630C
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 2, lun 0
Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
Partition check:
 sda: unknown partition table
SCSI device sdb: 2051460 512-byte hdwr sectors (1050 MB)
 sdb: sdb1 sdb2 sdb3
[deleted lines]
VFS: Cannot open root device "sda3" or 08:03
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on 08:03

The code in drivers/scsi/sd.c assigns /dev/sda to the lowest SCSI
id and works up the way. Fair enough. IIRC SCSI id's are prioritised
7->0 for narrow SCSI and 7->0, 15->8 for wide. Should device allocation
reflect this pattern? Surely it has to for hppa where the internal 
disk has id 6 preset?

Any suggestions?

Cheers

Donald




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From: Andrew Shugg <andrew@neep.com.au>
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y.   han said:
> We are trying to use rbootd to boot up HP715/50 machines. The machine we 
> are using is running RedHat 7.1. We downloaded
> the rbootd files from
> ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/rbootd-2.0-2.tar.gz
> 
> How can we run it so that the hp box can find it when it boot. how can we
> change rboot.conf file to make it work.
> 
> Or is there a manual/ instruction for it?

Have you installed this tarball's contents?  It does include a man page,
rbootd.8 ...

  tar xzpvfC rbootd-2.0-2.tar.gz /

You'll need to modify /etc/rbootd.conf that contains the MAC address of
your workstation and the name of the image file.

Here is one of mine, for example:

  08:00:09:35:B9:38       Image         # hpsauce Linux kernel

Your kernel image(s) need to go in /export/hp/rbootd for this build of
rbootd (as far as I can tell).  "mkdir -p /export/hp/rbootd" to create.

As for how to start it, well, just run "/etc/rc.d/init.d/rbootd start" ...

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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From: Torsten Neumann <torsten@imke.infodrom.ffis.de>
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Subject: [parisc-linux] Problems compiling LVM
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Hi,

the linux-lvm code was inspired by the hp-ux LVM. So I thougt it would be
real cool if the linux-lvm runs under hppa-linux.
Compiling the kernel with lvm support is no problem, the userspace tools
have some problems with gcc-3 (code uses #ifdef constructs in printf macro),
but then also compiles cleanly.

Now I want to create a VG but I only got the error message
imke kernel: pvcreate(188): unaligned access to 0x40067cf3 at ip=0x400310db
imke kernel: Not-handled unaligned insn 0x48350376
from the program pvcreate.
Could somebody tell what kind of problem this is. Is it a kernel problem or
a userspace problem ?
Is there a way to avoid this problem ?

  Torsten




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Subject: [parisc-linux] Kernel images for rbootd
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thanks for Andrew's detailed instruction.

Well, we came across another question after several steps.
1. what is the kernel image? we downloaded the nfsroot-20001009.tar.gz, is
this the kernel image?

2. shall we copy this file into /export/hp/rbootd directory and gunzip and
tar it?

thanks again,





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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Problems compiling LVM
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Hi Torsten,

The problem is that your userspace program tries to do a direct 16 or 32-bit 
read- or write-access to address 0x40067cf3 - which lies on a "unaligned 
address" (e.g. not a a 32-bit boundary). 
On Intel architectures this fault is automatically handled by the hardware, 
while you get an unaligned access trap on parisc.

The first parisc-kernel which should handle this trap correctly is 2.4.0-pa39 
(in CVS), so I would encourage you to update your kernel.

Greetings,
Helge

On Thursday 28 June 2001 20:29, Torsten Neumann wrote:
> Hi,
>
> the linux-lvm code was inspired by the hp-ux LVM. So I thougt it would be
> real cool if the linux-lvm runs under hppa-linux.
> Compiling the kernel with lvm support is no problem, the userspace tools
> have some problems with gcc-3 (code uses #ifdef constructs in printf
> macro), but then also compiles cleanly.
>
> Now I want to create a VG but I only got the error message
> imke kernel: pvcreate(188): unaligned access to 0x40067cf3 at ip=0x400310db
> imke kernel: Not-handled unaligned insn 0x48350376
>
> >from the program pvcreate.
>
> Could somebody tell what kind of problem this is. Is it a kernel problem or
> a userspace problem ?
> Is there a way to avoid this problem ?
>
>   Torsten




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From: Chris Snow <chris@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel images for rbootd
Date: Thu, 28 Jun 2001 15:52:13 -0400 (EDT)
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On Thu, 28 Jun 2001, y.   han wrote:

> Well, we came across another question after several steps.
> 1. what is the kernel image? we downloaded the nfsroot-20001009.tar.gz, is
> this the kernel image?

No that is the image for the NFS root filesystem.

There are some kernel images in:
/pub/parisc/binaries/kernels on puffin.external.hp.com but they are pretty
old ("vmlinux-*" files) so you might want to get the source code and
compile your own.  There are instructions for this on the website.


> 2. shall we copy this file into /export/hp/rbootd directory and gunzip and
> tar it?

No you want to untar it into a directory that is accesible by NFS.
(Assuming you want to have an NFS root filesystem).


     Chris

------------------------------
Yoda: Fear is the path to the dark side. Fear leads to anger. Anger
leads to hate. Hate leads to suffering. I sense much fear in you.





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From: Torsten Neumann <torsten@imke.infodrom.ffis.de>
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Subject: Re: [parisc-linux] Problems compiling LVM
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On Thu, Jun 28, 2001 at 09:36:15PM +0200, Helge Deller wrote:
> Hi Torsten,

[ unaligned access problem ]
> 
> The problem is that your userspace program tries to do a direct 16 or 32-bit 
> read- or write-access to address 0x40067cf3 - which lies on a "unaligned 
> address" (e.g. not a a 32-bit boundary). 
> On Intel architectures this fault is automatically handled by the hardware, 
> while you get an unaligned access trap on parisc.
> 
> The first parisc-kernel which should handle this trap correctly is 2.4.0-pa39 
> (in CVS), so I would encourage you to update your kernel.

This was with kernel
Linux imke 2.4.0-pa43 #2 Wed Jun 27 20:09:41 CEST 2001 parisc unknown

Any Hints ?
Or could somebody tell me what more info is needed to solve the problem ?

  Torsten




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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Problems compiling LVM
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> This was with kernel
> Linux imke 2.4.0-pa43 #2 Wed Jun 27 20:09:41 CEST 2001 parisc unknown
> 
> Any Hints ?
> Or could somebody tell me what more info is needed to solve the problem ?

Torsten, can you send me (not to the list pls) the binary that causes the
trap? I'll take a look. The unaligned trap only handles the common
load/store instructures on unaligned boundaries. Looks like your
application is using one of the (currently) unsupported instructions.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ioremap with 32bit kernel on 64bit machines
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Hi,

we do have a problem with ioremap on 64bit machines with a 32bit kernel.
While ldaw and friends translate the 32bit address to an appropriate
64bit address our dtlb miss handler doesn't.

ldaw translation:

0x00000000 - 0xefffffff  ->   0x00000000 00000000 - 0x00000000 efffffff
0xf0000000 - 0xf0ffffff  ->   0xf0000000 00000000 - 0xf0000000 00ffffff
0xf1000000 - 0xffffffff  ->   0xffffffff f1000000 - 0xffffffff ffffffff

the second range is PDC address space, don't know whether we need it.
I've added code in dtlb_miss_20 and nadtlb_miss_20 to do following
mapping:

0x00000000 - 0xefffffff  ->   0x00000000 00000000 - 0x00000000 efffffff
0xf0000000 - 0xffffffff  ->   0xffffffff f0000000 - 0xffffffff ffffffff

This way we get at least io address space right. The changes are below
and I guess they could be improved. With this changes I'm able to ioremap
the framebuffer on my C200 and after changes to zalon and sym53x8xx the
system works as before. Comments ?

Thomas.

Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/entry.S,v
retrieving revision 1.85
diff -u -r1.85 entry.S
--- arch/parisc/kernel/entry.S	2001/06/12 16:09:52	1.85
+++ arch/parisc/kernel/entry.S	2001/06/27 23:05:40
@@ -1251,7 +1251,10 @@
 	/* Get rid of prot bits and convert to page addr for idtlbt */
 
 	depdi		0,63,12,pte
-	extrd,u		pte,56,25,pte
+	extrd,u         pte,35,4,t0
+	cmpiclr,<>      15,t0,r0
+	depdi           -1,31,32,pte
+	extrd,u		pte,56,52,pte
 	idtlbt          pte,prot
 
 	rfir
@@ -1324,7 +1327,10 @@
 	/* Get rid of prot bits and convert to page addr for idtlbt */
 
 	depdi		0,63,12,pte
-	extrd,u		pte,56,25,pte
+	extrd,u         pte,35,4,t0
+	cmpiclr,<>      15,t0,r0
+	depdi           -1,31,32,pte
+	extrd,u		pte,56,52,pte
 	idtlbt          pte,prot
 
 	rfir


-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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From: Richard Hirst <rhirst@linuxcare.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11455

On Wed, Jun 27, 2001 at 12:29:11PM -0700, Al Budriunas wrote:
> 
> I am experiencing the same failure reported by E. Frank Ball to this group
> on June 6:
> 
> =================
> I then tried to run "dpkg-reconfigure base-config".  It got to where it
> is supposed to install the packages and died with a message:  failed
> running script /usr/sbin/dpkg-preconfigure --apt || true
> apt-utils is not installed.
> ==================
> 
> My install source is CDROM created from the June iso image. Has anyone
> sorted this out yet?

There should be a new ISO out any day now, please try again once
that is available.

Richard





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From: jason andrade <jason@dstc.edu.au>
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Subject: [parisc-linux] mirroring parisc-linux in australia (2nd or 3rd try..)
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Hi,

I'm trying to find out what's involved in mirroring parisc-linux
here in australia and actually getting listed.

I've mirrored the 0.9 release, and have been mirroring since
0.5, but haven't been able to get any reply from the parisc
archive admin to date about

o automating mirroring
o rsync access
o web page mirroring

and most importantly, getting listed as a mirror for australia.

any takers ?


regards,

-jason






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This is a multi-part message in MIME format.

------=_NextPart_000_0026_01C100A9.4013D880
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	charset="iso-8859-1"
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Hi!

We got the message of "08:00:09:87:e4:8f: request to boot=20
(denied) " from the system message.=20
But  we ran the rbootd in this machine. Does anyone know how to figure =
it out?

thanks,


------=_NextPart_000_0026_01C100A9.4013D880
Content-Type: text/html;
	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.3103.1000" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi!</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>We got the message&nbsp;of =
"08:00:09:87:e4:8f: <B=20
style=3D"BACKGROUND-COLOR: #a0ffff; COLOR: black">request</B> to <B=20
style=3D"BACKGROUND-COLOR: #99ff99; COLOR: black">boot</B> <BR>(<B=20
style=3D"BACKGROUND-COLOR: #ff9999; COLOR: black">denied</B>) " from the =
system=20
message.&nbsp;<BR>But  we ran the rbootd in this machine. Does anyone =
know how=20
to figure it out?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>thanks,</FONT></DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

------=_NextPart_000_0026_01C100A9.4013D880--





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Hi Jason,

I think everyone's on vacation at the moment.  =)

> I'm trying to find out what's involved in mirroring parisc-linux
> here in australia and actually getting listed.
> 
> I've mirrored the 0.9 release, and have been mirroring since
> 0.5, but haven't been able to get any reply from the parisc
> archive admin to date about
> 
> o automating mirroring
> o rsync access
> o web page mirroring
> 
> and most importantly, getting listed as a mirror for australia.
> 
> any takers ?

Well, as you are already mirroring the entire Debian archive you have
the hppa packages on board, which is great.  I don't actually know who
it is that has been updating the website but hopefully someone who has
CVS write access could add the relevant URLs to the pages.  I wouldn't
think it worthwhile to mirror the website itself though apart from those
ISO files.  Once things have settled down with a stable release then
planetmirror/mirror.aarnet will pick them up via the debian-cd mirror.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




From - Thu Nov 08 21:18:13 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] New i386->hppa cross-compiler
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Xref: news.gmane.org gmane.linux.ports.parisc:11459

Hi hppa-linux'ers,

I have built a new i386 ->hppa/hppa64 cross-compiler. The tarball is available 
at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20010628-2.tar.gz

Untar it from / it lives in /opt/palinux, so you'll want to add 
/opt/palinux/bin to your $PATH. It was built against potato's glibc 2.1.3 so 
it should work on systems using that and newer.

Please report any problems to the list.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] New hppa->hppa64 compiler debs
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Hi parisc-linux hackers,

I have built new hppa->hppa64 cross-compiler debian packages. They are 
available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/unofficial-debs/

and are called,

binutils-hppa64_2.11.90.0.19.cvs-1_hppa.deb
gcc-hppa64_3.0.ds9-3_hppa.deb

These are unofficial debs and will not be uploaded to the debian archive. 
Eventually there will be a standard way to do cross-compilers in debian and 
we'll switch over to that. Until then I will keep producing these debs as 
needed.

Please report any problems to the list.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] External SCSI Disk
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             <3B3A7E3D.394759D6@blueyonder.co.uk> 
Xref: news.gmane.org gmane.linux.ports.parisc:11461

Donald Scobbie wrote:
> I attached an external SCSI disk to my 712/80 which has the
> palinux-0.9 32 bit serial distribution installed on the internal
> disk:
...
>    Device Path              Device Type
>    -----------              -----------
>    scsi.6.0                 QUANTUM FIREBALL1050S
>    scsi.2.0                 SEAGATE ST32151N
> 
> BOOT_ADMIN> boo

Try "bo scsi.2.0" instead?
Just using "boot" will default to whatever the primary path is.

> The code in drivers/scsi/sd.c assigns /dev/sda to the lowest SCSI
> id and works up the way. Fair enough. IIRC SCSI id's are prioritised
> 7->0 for narrow SCSI and 7->0, 15->8 for wide. Should device allocation
> reflect this pattern?

It could. Search the mail archives - I've complained about this before.

>  Surely it has to for hppa where the internal 
> disk has id 6 preset?

It doesn't. 

> Any suggestions?

Make sure your partition layout doesn't cross the 2GB boundary for
the /boot or 0xf0 partition. palo documentation has the best explanation
of the PDC limitations I know of.

In general, I'm guessing that the scsi.6.0 has palinux installed on it
and the scsi.2.0 disk isn't partitioned with a compatible format for
some reason.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: [parisc-linux] New kernels available
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Xref: news.gmane.org gmane.linux.ports.parisc:11462

I have built two kernel images and made them available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/

Here's what they are,

Both
----
started with defconfig and turned off these
CONFIG_IP_PNP_BOOTP
CONFIG_ROOT_NFS

vmlinux-20010629
----------------
CONFIG_PA7100LC=y
CONFIG_PA11=y

vmlinux64-20010629
------------------
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PARISC64=y


You should be able to drop the appropriate one in and reboot(yaa palo!).

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] request to boot (denied)
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On Fri, Jun 29, 2001 at 02:39:06PM -0400, Yan Han wrote:
> Hi!
> 
> We got the message of "08:00:09:87:e4:8f: request to boot 
> (denied) " from the system message. 
> But  we ran the rbootd in this machine. Does anyone know how to figure it out?
> 
> thanks,
>

Han,

There are two important things you need to do:

A. Please _read_ the manual for rbootd. (man rbootd)

B. Please _check_ the mailing list archive for solutions to this problem. 
   (http://www.parisc-linux.org/mailing-lists/)

Secondly, I would recommend that you contact one of the Unix admins from
the Computer Science faculty at UWO (Scott Feeney, Magi, Bruce Richards) and
drop your general Unix questions in their direction.

It seems to me that many of your problems stem from not having
experience with a general Unix environment.

You might want to go here:
http://www.linuxcare.com/linux-business/bookshelf/newbie.epl#0672315459
(and purchase one or two of these books, since they will be forever usefull!)

Yes, that was a shameless Linuxcare plug ;)

---

Usefull checklist of things:

1. Do you have /etc/rbootd.conf ?
2. Is rbootd.conf setup properly ?
3. Do you have a kernel in the proper directory ? /var/lib/rbootd ?
4. Permissions on the image ?
5. Is rbootd running ?
6. Did you pass the right parameters to rbootd on startup ? (rbootd -d /etc/rbootd.conf)

Rbootd:
ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/rbootd-2.0-2.tar.gz

Ever patient,
Carlos.





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From: Peter Weilbacher <weilbach@uni-sw.gwdg.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:11464

On Fri, 29 Jun 2001, Matt Taggart wrote:

> Hi hppa-linux'ers,
>
> I have built a new i386 ->hppa/hppa64 cross-compiler. The tarball is available
> at,
>
> ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20010628-2.tar.gz
>
> Untar it from / it lives in /opt/palinux, so you'll want to add
> /opt/palinux/bin to your $PATH. It was built against potato's glibc 2.1.3 so
> it should work on systems using that and newer.

Hi Matt!

I tried compiling the kernel 20010629 on my x86-SuSE-6.4-Linux
machine using the new cross-compiler and I got a segfault during
final linking (see below). Reverting to xc-20010530 cured that
problem. The rest of the kernel compilation (the part before the
final linking) worked OK though.

	Peter.


hppa-linux-ld -T /home/hplinux/PA-RISC_Linux/linux/arch/parisc/vmlinux.lds  arch/parisc/kernel/head.o  init/main.o init/version.o \
--start-group \
arch/parisc/kernel/pdc_cons.o arch/parisc/kernel/process.o arch/parisc/lib/lib.a arch/parisc/mm/mm.o arch/parisc/kernel/kernel.o arch/parisc/hpux/hpux.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o arch/parisc/kernel/init_task.o \
drivers/block/block.o drivers/char/char.o drivers/misc/misc.o drivers/net/net.o drivers/media/media.o  drivers/parport/driver.o drivers/scsi/scsidrv.o drivers/cdrom/driver.o drivers/sound/sounddrivers.o drivers/pci/driver.o drivers/video/video.o drivers/md/mddev.o drivers/gsc/gscbus.o arch/parisc/math-emu/math.o \
net/network.o \
`hppa-linux-gcc -print-libgcc-file-name` /home/hplinux/PA-RISC_Linux/linux/arch/parisc/lib/lib.a /home/hplinux/PA-RISC_Linux/linux/lib/lib.a  \
	--end-group \
	-o vmlinux
Segmentation fault





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telnetd and ftpd were not included with the June 1 ISO image. The only
telnetd and ftpd I did find on the Debian site is for i386.  

Is there a PARISC depot somewhere?

Thanks,

Al







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On Mon, Jul 02, 2001 at 11:38:39AM -0700, Al Budriunas wrote:
> 
> telnetd and ftpd were not included with the June 1 ISO image. The only
> telnetd and ftpd I did find on the Debian site is for i386.  
> 
> Is there a PARISC depot somewhere?

`apt-get install telnetd' will work if you've added the appropriate
lines to your /etc/apt/sources.list file; something like

deb http://ftp.us.debian.org/debian unstable main non-free contrib

should work.

-- 
Revolutions do not require corporate support.




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Xref: news.gmane.org gmane.linux.ports.parisc:11467

Al Budriunas writes...

> telnetd and ftpd were not included with the June 1 ISO image. The only
> telnetd and ftpd I did find on the Debian site is for i386.  

apt-get update
apt-get install telnetd
apt-get install ftpd

Alternatively you can grab them from any debian mirror by hand and install 
them. These should go in the next iso as we get a lot of requests for them.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Peter Weilbacher <weilbach@uni-sw.gwdg.de>
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Subject: [parisc-linux] JFS on PA-RISC-Linux
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Hi!

Did anyone try JFS on other architectures than iX86 (the 1.0.0
announcement did only restrict it to 2.4.X :-) )? I wanted to test
on PA-RISC-Linux today, and the patched kernel and the utilities
compiled OK (Kernel calls itself 2.4.0-pa49 #1), but when trying to
create a JFS partition with mkfs.jfs I either get

	mkfs.jfs development version: $Name: v1_0_0 $

	Warning!  All data on device /dev/sdb1 will be lost!

	Continue? (Y/N) Y
	  |
	Bus error

or

        mkfs.jfs development version: $Name: v1_0_0 $

        Warning!  All data on device /dev/sdb1 will be lost!

        Continue? (Y/N) Y
	<4>mkfs.jfs(379): unaligned access to 0x00035245 at ip=0x000137af
	Not-handled unaligned insn 0x4a740108
	Unaligned handler failed, ret = -1

(optionally without <4> or with Bus error)

Is it JFS's fault or that of the PA-RISC-Linux port? The messages do
not seem to be from mkfs.jfs, as I did not find anything like that
in its source. Is it too early to try things like this?

Peter.





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On Tue, Jul 03, 2001 at 12:51:27PM +0200, Peter Weilbacher wrote:
> 	<4>mkfs.jfs(379): unaligned access to 0x00035245 at ip=0x000137af
> 	Not-handled unaligned insn 0x4a740108
> 	Unaligned handler failed, ret = -1
> 
> (optionally without <4> or with Bus error)
> 
> Is it JFS's fault or that of the PA-RISC-Linux port? The messages do
> not seem to be from mkfs.jfs, as I did not find anything like that
> in its source. Is it too early to try things like this?

It's the fault of both, really.  The userspace program is attempting to do
an unaligned access.  say, loading an int from a non-word-aligned address.
Most CPUs can't handle this and take a fault.  We haven't yet implemented
a trap handler for that fault.

Or rather, tausq has implemented one, but hasn't activated it yet,
I believe.... tausq?

-- 
Revolutions do not require corporate support.




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] JFS on PA-RISC-Linux
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Xref: news.gmane.org gmane.linux.ports.parisc:11470

Peter Weilbacher wrote:
...
I can't comment on the bus error.

>         mkfs.jfs development version: $Name: v1_0_0 $
> 
>         Warning!  All data on device /dev/sdb1 will be lost!
> 
>         Continue? (Y/N) Y
> 	<4>mkfs.jfs(379): unaligned access to 0x00035245 at ip=0x000137af
> 	Not-handled unaligned insn 0x4a740108
> 	Unaligned handler failed, ret = -1
> 
> (optionally without <4> or with Bus error)
> 
> Is it JFS's fault or that of the PA-RISC-Linux port?

The parisc-linux port. Randolph Chung recently added support for unaligned
access emulation.  Randolph needs more info to fix this problem.
See http://lists.parisc-linux.org/pipermail/parisc-linux/2001-June/012946.html

> The messages do
> not seem to be from mkfs.jfs, as I did not find anything like that
> in its source. Is it too early to try things like this?

No. If no one tries, we won't know what's broken. The basic stuff works.

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Please do not cc closed (moderated) lists and lists at parisc-linux.org.
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-- 
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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] JFS on PA-RISC-Linux
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> It's the fault of both, really.  The userspace program is attempting to do
> an unaligned access.  say, loading an int from a non-word-aligned address.
> Most CPUs can't handle this and take a fault.  We haven't yet implemented
> a trap handler for that fault.
> 
> Or rather, tausq has implemented one, but hasn't activated it yet,
> I believe.... tausq?

The trap handler is activated but doesn't handle this particular load
instruction yet. I'll fix this tomorrow.

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/




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From: Timothy Ball <timball@tux.org>
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Subject: [parisc-linux] booting images
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I have a 735 and have had a bit of a time to try to get this thing to
boot and install. I have downloaded the palinux-0.9-32sti.iso.gz file
from the parisc website. Is there anything special I have to do to this
image to make it bootable? 

--timball

-- 
	GPG key available on pgpkeys.mit.edu
pub  1024R/CFF85605 1999-06-10 Timothy L. Ball <timball@sheergenius.com>
     Key fingerprint = 8A 8E 64 D6 21 C0 90 29  9F D6 1E DC F8 18 CB CD




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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] Free machines in the Bay Area
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I've been informed there are a couple of PA machines in the Bay Area
free to a good home [owner is moving to Florida].  Whoever wants them
has to take both of them and the one big monitor.  There's a 715/100
and a 712/60 -- not sure which monitor it is, but probably a 17" colour
monitor (A4033A).

No further details available at this point, please contact the owner
directly at +1 510 5435345 to arrange when to pick them up.

-- 
Revolutions do not require corporate support.




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On Wed, Jul 04, 2001 at 12:15:30AM +0100, Matthew Wilcox wrote:
> monitor (A4033A).

It's an A2094A, sorry for the confusion.

-- 
Revolutions do not require corporate support.




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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Subject: [parisc-linux] How to access the second serial port on a B180 with PALINUX
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Hio,

I just re-install my B180 with the last palinux-0.9 CD.

With STI console gpm also works excepted that it do not highlight a
double-click selection (but selection works)?

I would also like to test the second serial port available on this model.
Is any have tips or idea?

Thanks in advance for help,
     Joel



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From: marteau <marteaut@esiee.fr>
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Subject: [parisc-linux] 0.9.1 ISO Release
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Hi all,                                                               
                                                                      
	You can find the latest ISO (0.9.1) at                               
http://mkhppa1.esiee.fr/download.html                                 
As you will see, the kernel gets the last changes and there is no more
serial or sti version...                                              
                                                                      
	Try it and please feedback to the mailing list...                    
                                                                      
Regards, Thomas                                                       
ESIEE Team                                                            




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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] Re: X Windows under HP
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Note: CC'd to parisc-linux@parisc-linux.org

On Wednesday 04 July 2001 10:11, colas.sebastien@free.fr wrote:
>
> First I have an HP Apollo 715/100 with about 100 Mo RAM.
> I finnally succed in installing linux on it after 4 CD burning,
> can you make your .iso directly bootable please.

All of our until now released iso images are and have been
bootable. Maybe you have problems booting the cd, because:

a) you have an "old" cdrom-drive, which can't handle burned cd's.
(I have the same problem here with a Philips PCA80SC cdrom-drive, 
which also doesn't seem to be able to read from a not-self-burned 
credit-card cd :-)
or:
b) you have used a stupid windows program to burn your CD and 
didn't burned it 1:1.

> When i boot under Linux I have a specific harddrive for it,
> sometimes and the end of the procedure when the login must
> be displayed the system crash and I saw all the registry
> variables. I have the same problem with 'vi' when I press
> ctrl-d when I am at the end of the document my linux crash.
> Do you know that problem, is there a fix ?

I have fixed the "vi"-problem in one of the latest kernel versions, but 
can't say you anything about your other problem.

> When I installed my linux I saw there is a package naming
> something like X-Windows-core.hppa.deb, there are also some
> packages like xtris. I installed all these package.
> I searched the XFreeConfig or Xstart or all the program with
> a 'X' and there are nothing.
> So the question is:
> - Is X Window supported on my system ???

Yes - But AFAIK the X-Framebuffer server (xfbdev) is the only supported 
one at this moment. Your 715/100 has an artist gfx chip, so it should work 
for you.

> - If yes what shall I do to run it ???

a) Install the latest kernel and make sure that stifb is activated and used!
(THIS WILL ONLY WORK FOR SOME OF THE 712 AND 715 MODELS!)
b) Install the xserver-xfree86, xfonts*, xlibs*, xbase* and xutils packages
c) Since you have a 715/100 system I assume you have a HIL keyboard.
In this case you have to modify your /etc/X11/XF86Config-4 in the 
keyboard-InputDevice-section:
Option	"XkbdRules"	"xfree86"
Option	"XkbModel"	"hphil"
and insert the following "hphil" line to /etc/X11/xkb/rules/xfree86:
  hp            =       xfree86         pc(pc104)
  hphil         =       hp(hil)         hp(hil)	<--- Add this one !!
d) The HIL-mouse is not supported yet. Instead I attached a serial mouse
to one of the serial ports and modified /etc/X11/XF86Config-4 to use this
mouse.
e) As graphic driver use the fbdev-driver in your "Device" section:
Driver	"fbdev"
f) Now you should be able to boot up the X server and use a simple 
window-manager like vtwm.

> - I supposed the X Window is a modified version to run under
>   HP. Am I rigth ?

No. But it may become true if we want to support other graphic chips in
newer HP systems.

Greetings,
Helge




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11479

Timothy Ball wrote:
> I have a 735 and have had a bit of a time to try to get this thing to
> boot and install. I have downloaded the palinux-0.9-32sti.iso.gz file
> from the parisc website. Is there anything special I have to do to this
> image to make it bootable? 

gunzip the .gz, burn a CD from the ISO, boot the 735 from the CD.
Read the how-to-install URL:
http://www.parisc-linux.org/software/install.html

ESIEE also has written how-to's which might be more up-to-date.
The parisc-linux mail archive (see http://lists.parisc-linux.org/)
has the URL's - most likely in the June 2001 archive if you don't
want to search.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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We're planning on merging to 2.4.6 on Thursday afternoon, starting
at 3pm Mountain time (21:00 UTC, 2pm San Francisco, 5pm Ottawa, 11pm
Paris/Berlin).  We'll coordinate this on IRC as usual.

-- 
Revolutions do not require corporate support.




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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Hi all,

Very nice on 712 model.
Just a small problem after the configuration of the inet interface:
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
skb: pf=2 (unowned) dev=l0 len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16

This message is repeated severall times?

Elsewhere the install finished well! (congratulation it is really a big
step).

But on the B180, I met the same problem as I met with the kernel
vmlinux-20010629 (from puffin also with your vmlinux-712+sound+mouse):
all seems to work fine but the keyboard does not answer (and no serial
consol yet available) also it is impossible to contine the install?

(Sorry I just tested vmlinux-20010629 in the beginning of afternnon and not
have time to report it before your realease)

Thanks in advance for help,
     Joel



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Xref: news.gmane.org gmane.linux.ports.parisc:11482

Hio,

I found the solution in the precompile kernel vmlinux-20010629 but this one
the ps2 keyboard does not answer (fortunately I had also a serial console
which allow me to verify that everything else works fine).

Any idea about this keyboard problem?

Thanks in advance for additional help,
     Joel




                                                                           =
                                  =20
                    Jo=EBl Soete                                           =
                                    =20
                                         To:     parisc-linux@lists.parisc-=
linux.org                         =20
                    04-07-01             cc:                               =
                                  =20
                    08:59 AM             Subject:     How to access the sec=
ond serial port on a B180 with    =20
                                         PALINUX                           =
                                  =20
                                                                           =
                                  =20



Hio,

I just re-install my B180 with the last palinux-0.9 CD.

With STI console gpm also works excepted that it do not highlight a
double-click selection (but selection works)?

I would also like to test the second serial port available on this model.
Is any have tips or idea?

Thanks in advance for help,
     Joel





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From: Timothy Ball <timball@tux.org>
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Subject: Re: [parisc-linux] booting images
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On Tue, Jul 03, 2001 at 03:12:02PM -0400, Timothy Ball wrote:
> I have a 735 and have had a bit of a time to try to get this thing to
> boot and install. I have downloaded the palinux-0.9-32sti.iso.gz file
> from the parisc website. Is there anything special I have to do to this
> image to make it bootable? 

Okay I got the iso and it's booting... but then it gets down to these
last few lines:

--snip--snip--snip--
CPU(s): 1x PA7100 (PCX-T) at 125.000000 MHz
Kernel command line: HOME=/ TERM=linux root=/dev/ram console=tty0 sti=0
sti_font=VGA8x16
Console: colour dummy device 80x25
--snip--snip--snip--

Then it hangs... Not sure what to do... 

--timball

-- 
	GPG key available on pgpkeys.mit.edu
pub  1024R/CFF85605 1999-06-10 Timothy L. Ball <timball@sheergenius.com>
     Key fingerprint = 8A 8E 64 D6 21 C0 90 29  9F D6 1E DC F8 18 CB CD




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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: [parisc-linux] Re: How to access the second serial port on a B180 with PALINUX
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On Wed, Jul 04, 2001 at 06:57:41PM +0200, Jol Soete wrote:
> Any idea about this keyboard problem?

I'm working on that problem, which I've noticed during the last weekend.
PS2 keyboard and mouse are working on my 712 but not on the B180.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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To: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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Hi!
Does anyone have any idea what is wrong with rbootd in our 715/50 machine.

We get the rbootd running.
1. the rbootd.conf is located at /etc
2. the rbootd.conf contains:

08:00:09:78:ab:0f    vmlinux        #Corus

(we have vmlinux, lifimage located at /export/hp/rbootd/ . and try both in
rbootd.conf

3. we set the vmlinux and lifimage r and x (readable).
4. rbootd is located at /etc/init.d/ and we run it by "rbootd
start". after
modifying the rbootd.conf, we use "rbootd restart" to restart it. 

5. we try to use "rbootd -d " to debug the messages. we get the
message. The following is a sample from the system message.

Jul  3 13:11:32 roller rbootd: rbootd shutdown succeeded
Jul  3 13:11:35 roller rbootd[4383]: restarted (eth0)
Jul  3 13:11:35 roller kernel: device eth0 entered promiscuous mode
Jul  3 13:12:47 roller rbootd[4383]: 08:00:09:78:ab:0f: request to boot
(denied)
Jul  3 13:12:47 roller rbootd: <<< 13:12:47.752052
Addr: 08:00:09:78:ab:0f   I
ntf: eth0
Jul  3 13:12:47 roller rbootd: ^I802.2 LLC: DSAP:f8 SSAP:f8 CTRL:300
Jul  3 13:12:47 roller rbootd: ^IHP Ext:    DXSAP:608 SXSAP:609
Jul  3 13:12:47 roller rbootd: ^IBoot Request: (Send Server ID)
Jul  3 13:12:47 roller rbootd: ^I^IRetCode:0 SeqNo:0 SessID:ffff Vers:2
Jul  3 13:12:47 roller rbootd: ^I^IMachine Type: HPS700              
Jul  3 13:12:47 roller rbootd: ^I^IFile Name (0): <>
Jul  3 13:12:47 roller rbootd: 
Jul  3 13:12:47 roller rbootd: >>> 13:12:47.755687
Addr: 08:00:09:78:ab:0f   I
ntf: eth0
       12:48 roller rbootd: ^I802.2 LLC: DSAP:f8 SSAP:f8 CTRL:300
Jul  3 13:12:48 roller rbootd: ^IHP Ext:    DXSAP:609 SXSAP:608
Jul  3 13:12:48 roller rbootd: ^IBoot Reply:
Jul  3 13:12:48 roller rbootd: ^I^IRetCode:16 SeqNo:af77368d SessID:1
Vers:2
Jul  3 13:12:48 roller rbootd: ^I^IFile Name (0): <>
Jul  3 13:12:48 roller rbootd: 
Jul  3 13:12:58 roller rbootd: <<< 13:12:58.242052
Addr: 08:00:09:78:ab:0f   I
ntf: eth0


6. We do not know what is going on with this machine?  If anyone can help
on this problem, that will be much helpful.

thanks,



>>>>>>>   
Department of Computer Science
University of Western Ontario





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> Hi!
> Does anyone have any idea what is wrong with rbootd in our 715/50 machine.
> 
> We get the rbootd running.
> 1. the rbootd.conf is located at /etc
> 2. the rbootd.conf contains:
> 
> 08:00:09:78:ab:0f    vmlinux        #Corus
[snip]

Han,

I will email you off-list with a few more _detailed_ pointers.

Cheers,
Carlos.





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Hi!

We solved the previous question I posted. so now the Hp715/50 machine get
started. But we still get some problems.

We get the log message "08:00:09:78:ab:0f: boot packets ignored" after
getting  "08:00:09:78:ab:0f:  request to boot lifimage (granted) "



>>>>>>>   
Department of Computer Science
University of Western Ontario





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Thanks for the reply,

We fixed the problem mentioned before.

A new problem is that after the hp box start to boot, it branches to
kernel and then the screen goes black. We cannot see anything, and we
tried to serial console, but cannot see any activity.  It looks like hang,
any idea?





>>>>>>>   
Department of Computer Science
University of Western Ontario





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From: "T. Martin" <catfish@alltel.net>
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Subject: Re: [parisc-linux] 0.9.1 ISO Release
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Anyone have a US mirror with it yet? I can't get it from france its very
lagged. 
Thanks 
Terry



On Wed, 4 Jul 2001, marteau wrote:

> Hi all,                                                               
>                                                                       
> 	You can find the latest ISO (0.9.1) at                               
> http://mkhppa1.esiee.fr/download.html                                 
> As you will see, the kernel gets the last changes and there is no more
> serial or sti version...                                              
>                                                                       
> 	Try it and please feedback to the mailing list...                    
>                                                                       
> Regards, Thomas                                                       
> ESIEE Team                                                            
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 






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Subject: Re: [parisc-linux] How to access the second serial port on a B180 with PALINUX
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On Wed, Jul 04, 2001 at 08:59:39AM +0200, Jol Soete wrote:
> Hio,
> 
> I just re-install my B180 with the last palinux-0.9 CD.
> 
> With STI console gpm also works excepted that it do not highlight a
> double-click selection (but selection works)?
> 
> I would also like to test the second serial port available on this model.
> Is any have tips or idea?

Support has recently been added to the kernel for the second serial
port.  Either grab a new kernel from puffin.external.hp.com, I think
Matt Taggart posted some recently, or build your own.

Richard





From - Thu Nov 08 21:18:15 2018
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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Changes in Puffin Hardware Database !!
Date: Thu, 05 Jul 2001 00:21:12 +0200
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This is a multi-part message in MIME format.
--------------BEC157897CFF4BC6E8C14D5A
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi PA-RISC specialists !

I want to change my double registered email address
at HP 720 and E55 !
I have a new address (christoph.plattner@gmx.at, 
former: christoph.plattner@dot.at), and to be addressable,
I added my new email address, but the old must be removed !!

The email address at the bottom of the page (adminstrator)
is not addressable (see below).

With friendly regards
	Christoph Plattner



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at
--------------BEC157897CFF4BC6E8C14D5A
Content-Type: message/rfc822
Content-Transfer-Encoding: 7bit
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Subject: Undelivered Mail Returned to Sender
To: christoph.plattner@gmx.at
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This is a MIME-encapsulated message.

--1022C34C.994284909/mail.linuxcare.com
Content-Description: Notification
Content-Type: text/plain

This is the Postfix program at host mail.linuxcare.com.

I'm sorry to have to inform you that the message returned
below could not be delivered to one or more destinations.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the message returned below.

			The Postfix program

<mort@linuxcare.com>: unknown user: "mort"

--1022C34C.994284909/mail.linuxcare.com
Content-Description: Delivery error report
Content-Type: message/delivery-status

Reporting-MTA: dns; mail.linuxcare.com
Arrival-Date: Wed,  4 Jul 2001 15:15:09 -0700 (PDT)

Final-Recipient: rfc822; mort@linuxcare.com
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; unknown user: "mort"

--1022C34C.994284909/mail.linuxcare.com
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Message-ID: <3B439555.9FBF7504@gmx.at>
Date: Thu, 05 Jul 2001 00:14:45 +0200
From: Christoph Plattner <christoph.plattner@gmx.at>
Organization: private
X-Mailer: Mozilla 4.75 [en] (X11; U; Linux 2.2.16-22 i686)
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MIME-Version: 1.0
To: pariscdatabase@thepuffingroup.com
Subject: Double registered !!
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Dear Team !

Remove my double registration because of my Email 
change.

Remove

	christoph.plattner@dot.at

at the 720 and E55 machine.
My current address is

	christoph.plattner@gmx.at

which I already used here (so the 720 and E55 are
double registered !)

With friendly regards
	Christoph P.


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at

--1022C34C.994284909/mail.linuxcare.com--


--------------BEC157897CFF4BC6E8C14D5A--





From - Thu Nov 08 21:18:15 2018
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] unaligned memory accesses
Date: Wed, 4 Jul 2001 15:51:08 -0700
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To: Torsten Neumann <torsten@imke.infodrom.ffis.de>,
	Peter Weilbacher <weilbach@uni-sw.gwdg.de>,
	parisc-linux@lists.parisc-linux.org
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Wed Jul  4 16:51:52 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:11492

Torsten and Peter,

I've checked in some changes to parisc kernel cvs that should address 
the crashes you've seen. Please try picking up latest kernel files from 
cvs and let us know if they fix the errors you've seen.

thanks,
randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




From - Thu Nov 08 21:18:16 2018
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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: How to access the second serial port on a B180 with
 PALINUX
Date: Thu, 5 Jul 2001 08:02:50 +0200
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Cc: parisc-linux@lists.parisc-linux.org
To: "Thomas Bogendoerfer <tsbogend" <tsbogend%alpha.franken.de%SMTP%EUROPAY@mastercard.com>
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Thu Jul  5 00:13:13 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:11493

Thomas,

Sorry I have not enough knowledge to help you.

I will awating your result.

Thanks a lot,
     Joel



                                                                           =
                                      =20
                    Thomas                                                 =
                                      =20
                    Bogendoerfer             To:     Jo=EBl Soete/BRU/MASTE=
RCARD@MASTERCARD                        =20
                    <tsbogend@alpha.f        cc:     parisc-linux@lists.par=
isc-linux.org@SMTP@EUROPAY            =20
                    ranken.de>               Subject:     Re: [parisc-linux=
] Re: How to access the second serial =20
                                             port on a B180 with PALINUX   =
                                      =20
                    04-07-01 07:43 PM                                      =
                                      =20
                                                                           =
                                      =20
                                                                           =
                                      =20



On Wed, Jul 04, 2001 at 06:57:41PM +0200, Jo=EBl Soete wrote:
> Any idea about this keyboard problem?

I'm working on that problem, which I've noticed during the last weekend.
PS2 keyboard and mouse are working on my 712 but not on the B180.

Thomas.

--
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel
]





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which is strictly intended for the use of the authorised recipient.  If you=
 have received this e-mail in error, please delete it and notify the sender=
 by replying to this e-mail.
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From - Thu Nov 08 21:18:16 2018
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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] How to access the second serial port on a B180 with
 PALINUX
Date: Thu, 5 Jul 2001 08:11:05 +0200
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To: "Richard Hirst <rhirst" <rhirst%linuxcare.com%SMTP%EUROPAY@mastercard.com>
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Thu Jul  5 00:18:41 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:11494

Richard,

I well find it but there is a problem with ps2 keyboard (on B180) with this
kernel.
Awaiting the patch I am instaling 0.9.1 with a serial console which will
help me for the second serial port.

Thanks a lot
     Joel



                                                                           =
                                  =20
                    Richard Hirst                                          =
                                  =20
                    <rhirst@linux        To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD                        =20
                    care.com>            cc:     parisc-linux@lists.parisc-=
linux.org@SMTP@EUROPAY            =20
                                         Subject:     Re: [parisc-linux] Ho=
w to access the second serial port=20
                    04-07-01             on a B180 with PALINUX            =
                                  =20
                    11:57 PM                                               =
                                  =20
                                                                           =
                                  =20
                                                                           =
                                  =20



On Wed, Jul 04, 2001 at 08:59:39AM +0200, Jo=EBl Soete wrote:
> Hio,
>
> I just re-install my B180 with the last palinux-0.9 CD.
>
> With STI console gpm also works excepted that it do not highlight a
> double-click selection (but selection works)?
>
> I would also like to test the second serial port available on this model.
> Is any have tips or idea?

Support has recently been added to the kernel for the second serial
port.  Either grab a new kernel from puffin.external.hp.com, I think
Matt Taggart posted some recently, or build your own.

Richard





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which is strictly intended for the use of the authorised recipient.  If you=
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 by replying to this e-mail.
Thank you for your co-operation.
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From - Thu Nov 08 21:18:16 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Christoph Plattner <christoph.plattner@alcatel.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problem in palinux-0.9.1 image with directory "debian" !!
Date: Thu, 05 Jul 2001 09:07:30 +0200
Organization: AAA
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Xref: news.gmane.org gmane.linux.ports.parisc:11495

I have a problem with the iso image. I have loop back mounted
it on my linux box, and I wanted to tar (copy) it to a location
(NFSROOT) to try a media less installation via rboot/bootp.

But the copy was not possible, as the directory debian
contains recursively the contents of the whole CD !!

Is this correct !

With friendly regards
	Christoph P.


------------------------------------------------------------------
private:  christoph.plattner@gmx.at
company:  christoph.plattner@alcatel.at




From - Thu Nov 08 21:18:16 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problem in palinux-0.9.1 image with directory "debian" !!
Date: Thu, 5 Jul 2001 08:30:32 +0100
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To: Christoph Plattner <christoph.plattner@alcatel.at>
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Thu Jul  5 01:31:11 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:11496

On Thu, Jul 05, 2001 at 09:07:30AM +0200, Christoph Plattner wrote:
> I have a problem with the iso image. I have loop back mounted
> it on my linux box, and I wanted to tar (copy) it to a location
> (NFSROOT) to try a media less installation via rboot/bootp.
> 
> But the copy was not possible, as the directory debian
> contains recursively the contents of the whole CD !!
> 
> Is this correct !

No, it isn't correct.  debian should be a symbolic link to '.'.
I guess at some problem with the mkisofs options.  I've notified
the guys that made it, and hopefully they will remaster without
that problem soon.  I also had problems trying a CD based install
for the same reason.  In your case, try just taring up the dist
directory, or telling tar to ignore debian.

There may be workarounds for CD based installs, but I havn't
fully investigated yet.

Richard





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From: "Pengelly, Raymond" <RPengelly@ati.stlawrencec.on.ca>
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Subject: [parisc-linux] problems with burning iso's
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Hello everyone

I'm trying to set up a lab of HP series 700 and 735 workstations with
PA-Linux. I've downloaded the sti-32 iso and burned it but when I try to
boot from the cd drive all i get is five lines of what looks like a memory
dump? Anybody had this problem or ca offer any suggestions? I am able to
mount the CD drive and access the files normally.

Also I was wondering what the md5checksums are all about? 
Do I have to change anything in the iso before I burn it?

Ray Pengelly
rpengelly@ati.stlawrencec.on.ca





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From: marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problem in palinux-0.9.1 image with directory "debian" !!
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Hi all,                                                               
                                                                      
	I just uploaded the correct 0.9.1 with the debian link working.      
Thanks for testing. As you see, this is important, since it is our    
first ISO ;-)                                                         
                                                                      
Thomas                                                                
ESIEE Team                                                            




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Subject: Re: [parisc-linux] problems with burning iso's
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As far as I understand your description, this is correct !
You see about file lines, describing, where the modules
(kernel, ramdisk image, etc) is loaded. And now you must be
patient. In former Linux Releases I had to wait up to half or
full minute to get up. The current kernel on the 0.9.1 is
faster and takes 5-10 seconds (depending on the machine ...)

Wait for a longer time...

By the way. You wrote "series 700". Is this a 9000/720 with
50Mhz or a 730 with 66Mhz (my 720 has the model number A1094).
For those "old" machine you might need a patch in the kernel
to handle an old method of page fault, etc.., handling.
A line must be added then in the `arch/parisc/kernel/trap.c'.
This is true for the old PA7000 CPUs.

If your are intersted I will give you more hints to this point.

With friendly regards
	Christoph P.


"Pengelly, Raymond" wrote:
> 
> Hello everyone
> 
> I'm trying to set up a lab of HP series 700 and 735 workstations with
> PA-Linux. I've downloaded the sti-32 iso and burned it but when I try to
> boot from the cd drive all i get is five lines of what looks like a memory
> dump? Anybody had this problem or ca offer any suggestions? I am able to
> mount the CD drive and access the files normally.
> 
> Also I was wondering what the md5checksums are all about?
> Do I have to change anything in the iso before I burn it?
> 
> Ray Pengelly
> rpengelly@ati.stlawrencec.on.ca
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux


------------------------------------------------------------------
private:  christoph.plattner@gmx.at
company:  christoph.plattner@alcatel.at




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From: Joachim Kress <jkress@unilog.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] palinux
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Hello,

I have a HP9000 / 712 Workstation.

Can You tell me a general working-step for installing palinux on my =
machine
( step 1,....., step 9, ......)?


i am in confusion about your install-steps on your Website !

then i have many problems to make a bootable CDROM for my Workstation!


best regards,
		Joachim Kress


------------------------------------------------------------------------=
----
----------------
Joachim Kress			Phone:	+49-7071-409-181
Unilog Integrata Training AG	Fax.	+49-7071-409-176
Schleifm=FChleweg, 68		D1:	+49-170-7942970
D-72070 / T=FCbingen		<mailto:jkress@unilog.de>
------------------------------------------------------------------------=
----
----------------
    =20





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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: How to access the second serial port on a B180 with
 PALINUX
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Hi Thomas,

I also try X on my 712. I first install following packages:
ii  xbase-clients  4.0.3-4        miscellaneous X clients
ii  xfonts-100dpi  4.0.3-4        100 dpi fonts for X
ii  xfonts-75dpi   4.0.3-4        75 dpi fonts for X
ii  xfonts-base    4.0.3-4        standard fonts for X
ii  xfonts-cyrilli 4.0.3-4        Cyrillic fonts for X
ii  xfonts-pex     4.0.3-4        fonts for minimal PEX support in X
ii  xfonts-scalabl 4.0.3-4        scalable fonts for X
ii  xfree86-common 4.0.3-4        X Window System (XFree86) infrastructure
ii  xlibmesa3      4.0.3-4        XFree86 version of Mesa 3D graphics
library
ii  xlibs          4.0.3-4        X Window System client libraries
ii  xserver-common 4.0.3-4        files and utilities common to all X
servers
ii  xserver-xfree8 4.0.3-4        the XFree86 X server
ii  xutils         4.0.3-4        XFree86 utility programs

Then I install your XF86config and launch startx which failed (see
XFree86.0.log)
Also I try XFree86 -configure which failed also (see XFree86-configure)

And always same error: (EE) No OS PCI support available

Is it the actual cause of the failure.
Have you some work-around?

Thanks in advance for additional help,
     Joel


(See attached file: XFree86.0.log)(See attached file: XFree86-configure)



                                                                           =
                                      =20
                    Thomas                                                 =
                                      =20
                    Bogendoerfer             To:     Jo=EBl Soete/BRU/MASTE=
RCARD@MASTERCARD                        =20
                    <tsbogend@alpha.f        cc:     parisc-linux@lists.par=
isc-linux.org@SMTP@EUROPAY            =20
                    ranken.de>               Subject:     Re: [parisc-linux=
] Re: How to access the second serial =20
                                             port on a B180 with PALINUX   =
                                      =20
                    04-07-01 07:43 PM                                      =
                                      =20
                                                                           =
                                      =20
                                                                           =
                                      =20



On Wed, Jul 04, 2001 at 06:57:41PM +0200, Jo=EBl Soete wrote:
> Any idea about this keyboard problem?

I'm working on that problem, which I've noticed during the last weekend.
PS2 keyboard and mouse are working on my 712 but not on the B180.

Thomas.

--
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel
]



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which is strictly intended for the use of the authorised recipient.  If you=
 have received this e-mail in error, please delete it and notify the sender=
 by replying to this e-mail.
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From: "Maicon Wendhausen" <maicon@battistella.com.br>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PaLinux With HP9000/G30 and HP9000/F10
Date: Thu, 5 Jul 2001 11:01:07 -0300
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Hello All!

I have a HP9000/G30 with 128 Mb RAM and 4 HDs 4.3Gb. and the HP9000/F10
with 64Mb Ram and 1 HD 4.3 Gb.

I have problems on boot with CD, anyone have more information or URLs of
sites with more information about for these machines?

The G30 is running HP-UX 10.20 and F10 running HP-UX 9.x I dont want do
upgrade with this System Operation. I want install Linux in this Machine.

Very Thanks

[]'s Maicon Wendhausen
maicon@battistella.com.br
Network and Server Administration
Apaba S.A - Holding do Conglomerado Battistella
www.battistella.com.br






From - Thu Nov 08 21:18:16 2018
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From: "rpengelly" <rpengelly@ati.stlawrencec.on.ca>
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Subject: [parisc-linux] very confused
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I am trying to install pa-linux on a 735. I have a scsi CDROM and a =
ethernet connection to i386 running linux. I am getting very confused as =
to which is the best method of installing. Whether CD based or =
bootp/rboot based. Any help figuring this out would be greatly =
appreciated.=20

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<DIV><FONT face=3DArial size=3D2>I am trying to install pa-linux on a =
735. I have a=20
scsi CDROM and a ethernet connection to i386 running linux. I am getting =
very=20
confused as to which is the best method of installing. Whether CD based =
or=20
bootp/rboot based. Any help figuring this out would be greatly =
appreciated.=20
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From - Thu Nov 08 21:18:16 2018
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From: Rafael Herrera <raffo@neuronet.pitt.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problem in palinux-0.9.1 image with directory 
 "debian" !!
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To: marteau <marteaut@esiee.fr>
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The is something wrong with the new iso. I get:

Trying scsi.2.0
Boot path initialized.
Attempting to load IPL.

IPL error: bad LIF magic.

I verified the md5sum value from that of the website
(473c029b513472cccab1a4d6e2156619) and burnt the CD a 2x speed. The
image I got last night booted normally. This a 715/75 machine.

-- 
     Rafael




From - Thu Nov 08 21:18:17 2018
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From: Rafael Herrera <raffo@neuronet.pitt.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 0.9.1 installation failed with and ext2-fs error
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While installing the latest 0.9.1 on a 715/75 machine over a serial
line, the installation halted with this error message:

 Extracting
 /var/cache/apt/archives/tar_1.13.19-1_hppa.deb...          EXT2-fs
error (device sd(8,3)): ext2_write_inode: unable t9

it looks truncated. I can't provide more error messages. Are there other
virtual consoles under the installed? if so, how do you switch to them?
I'm using minicom on an X terminal.

-- 
     Rafael




From - Thu Nov 08 21:18:17 2018
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From: Torsten Neumann <torsten@imke.infodrom.ffis.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: unaligned memory accesses
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On Wed, Jul 04, 2001 at 03:51:08PM -0700, Randolph Chung wrote:
> Torsten and Peter,
> 
> I've checked in some changes to parisc kernel cvs that should address 
> the crashes you've seen. Please try picking up latest kernel files from 
> cvs and let us know if they fix the errors you've seen.

Tried latest kernel from cvs ( 2.4.0-pa51 ) and still got the same result,

pvcreate(204): unaligned access to 0x40067cf3 at ip=0x400310db
pvcreate(204): unaligned access to 0x40067cf7 at ip=0x400310e3

do_page_fault() pid=204 command='pvcreate' type=6 address=0x00400387
vm_start = 0x00024000, vm_end = 0x00025000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011101111111100001111
r0-3	 00000000 40067b38 4003cf23 faf00009
r4-7	 00000004 40068338 00000000 00000000
r8-11	 00000000 00000000 00000000 00000000
r12-15	 00000000 00000000 00023284 00023284
r16-19	 00023284 faf00688 ffffffff 70400683
r20-23	 00000000 00400386 40067120 ffffffff
r24-27	 faf0081c 00000010 00000004 00023284
r28-31	 00000010 00000008 faf00800 4003cf33
sr0-3	 0000021a 0000021a 00000000 0000021a
sr4-7	 0000021a 0000021a 0000021a 0000021a

IASQ: 0000021a 0000021a IAOQ: 00400387 0040038b
 IIR: 0f201090    ISR: 0000021a  IOR: 40067cf7
 ORIG_R28: 00000000

  Torsten




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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Re: unaligned memory accesses
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> Tried latest kernel from cvs ( 2.4.0-pa51 ) and still got the same result,
> 
> pvcreate(204): unaligned access to 0x40067cf3 at ip=0x400310db
> pvcreate(204): unaligned access to 0x40067cf7 at ip=0x400310e3

Do you see any other message about "Not-handled insn" like before? If
not this may be a different issue. 

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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Subject: Re: [parisc-linux] Re: unaligned memory accesses
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On Thu, Jul 05, 2001 at 12:04:35PM -0700, Randolph Chung wrote:
> > Tried latest kernel from cvs ( 2.4.0-pa51 ) and still got the same result,
> > 
> > pvcreate(204): unaligned access to 0x40067cf3 at ip=0x400310db
> > pvcreate(204): unaligned access to 0x40067cf7 at ip=0x400310e3
> 
> Do you see any other message about "Not-handled insn" like before? If
> not this may be a different issue. 

No,
I don't see any messages like "Not-handled unaligned insn" anymore, so it might
be a different issue.

  Torsten




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From: Paul Bame <bame@fc.hp.com>
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Subject: [parisc-linux] 2.4.6 kernel merge
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We're in the middle of merging to 2.4.6 and our CVS tree should not be
used for any other purpose right now.  It also doesn't even compile yet.
Use the 'pre246' tag if you need to grab the latest good sources.

	-P




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Raymond Pengelly said:
> Also I was wondering what the md5checksums are all about? 

The MD5 checksums of the ISO files are provided so that you can verify
the integrity of the file you have downloaded.  You will obviously need
the md5sum program for your operating system to do so.

> Do I have to change anything in the iso before I burn it?

No.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] request to boot (denied)
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"y. han" wrote:
> Hi!
> Does anyone have any idea what is wrong with rbootd in our 715/50 machine.
> 
> We get the rbootd running.
> 1. the rbootd.conf is located at /etc
> 2. the rbootd.conf contains:

I think the older machines only support bootp and not rboot.
(I don't really know what I'm talking about but others on the list
 have posted something...search the list archive at lists.parisc-linux.org. )

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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On Thu, Jul 05, 2001 at 11:03:29PM -0600, Grant Grundler wrote:
> I think the older machines only support bootp and not rboot.
> (I don't really know what I'm talking about but others on the list
>  have posted something...search the list archive at lists.parisc-linux.org. )

It's the other way around, Grant.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] palinux 0.9.1
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On Wed, Jul 04, 2001 at 06:44:02PM +0200, Jol Soete wrote:
> Hi all,
> 
> Very nice on 712 model.
> Just a small problem after the configuration of the inet interface:
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
> skb: pf=2 (unowned) dev=l0 len=328
> PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
> 
> This message is repeated severall times?

Don't know what causes that.

> But on the B180, I met the same problem as I met with the kernel
> vmlinux-20010629 (from puffin also with your vmlinux-712+sound+mouse):
> all seems to work fine but the keyboard does not answer (and no serial
> consol yet available) also it is impossible to contine the install?

I'm just installing a B180 using the 0.9.1 ISO, using the graphical
console.  I have a keyboard and mouse connected, and it is working
fine.  I'll try a serial console install next.

Richard





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On Wed, Jul 04, 2001 at 01:38:02PM -0400, Timothy Ball wrote:
> On Tue, Jul 03, 2001 at 03:12:02PM -0400, Timothy Ball wrote:
> > I have a 735 and have had a bit of a time to try to get this thing to
> > boot and install. I have downloaded the palinux-0.9-32sti.iso.gz file
> > from the parisc website. Is there anything special I have to do to this
> > image to make it bootable? 
> 
> Okay I got the iso and it's booting... but then it gets down to these
> last few lines:
> 
> --snip--snip--snip--
> CPU(s): 1x PA7100 (PCX-T) at 125.000000 MHz
> Kernel command line: HOME=/ TERM=linux root=/dev/ram console=tty0 sti=0
> sti_font=VGA8x16
> Console: colour dummy device 80x25
> --snip--snip--snip--
> 
> Then it hangs... Not sure what to do... 

http://mkhppa1.esiee.fr/list.html says 735 is only known to work
with serial console.  Don't know if that is still valid.  You
should try the 0.9.1 ISO available from ESIEE, but please wait until
they have fixed it - the one currently available does not boot at all!

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] palinux
Date: Fri, 6 Jul 2001 12:32:46 +0100
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To: Joachim Kress <jkress@unilog.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:11515

On Thu, Jul 05, 2001 at 03:34:39PM +0200, Joachim Kress wrote:
> Hello,
> 
> I have a HP9000 / 712 Workstation.
> 
> Can You tell me a general working-step for installing palinux on my machine
> ( step 1,....., step 9, ......)?

First wait for ESIEE to post a working 0.9.1 ISO at http://mkhppa1.esiee.fr
(the one with md5sum 473c029b513472cccab1a4d6e2156619 is broken).
Hopefully they will get a new one up on Monday.

That is a gzipped image, so uncompress it before burning a CD.

Boot the CD - it should work fine on serial or graphical console.

> i am in confusion about your install-steps on your Website !
> 
> then i have many problems to make a bootable CDROM for my Workstation!

If you cannot boot the CD, you need to set up a bootp server and
boot the lifimage file on the CD.  The README on the CD should make
that clear.  Having booted the lifimage, you may then install from
the CD or from the network.  Please post again if you still have
problems.

(if you are going to do a network install anyway, the current 0.9.1
ISO is ok - you just can't boot from it).

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] PaLinux With HP9000/G30 and HP9000/F10
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Xref: news.gmane.org gmane.linux.ports.parisc:11516

On Thu, Jul 05, 2001 at 11:01:07AM -0300, Maicon Wendhausen wrote:
> Hello All!
> 
> I have a HP9000/G30 with 128 Mb RAM and 4 HDs 4.3Gb. and the HP9000/F10
> with 64Mb Ram and 1 HD 4.3 Gb.

<http://www.parisc-linux.org/hardware/supported.html> tells you that
G and F class are unlikely to be supported in the near future.
<http://mkhppa1.esiee.fr/list.html> confirms that they are not
currently supported.

Sorry,
  Richard





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Subject: Re: [parisc-linux] very confused
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To: rpengelly <rpengelly@ati.stlawrencec.on.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:11517

On Thu, Jul 05, 2001 at 11:04:18AM -0400, rpengelly wrote:
> I am trying to install pa-linux on a 735. I have a scsi CDROM and a ethernet connection to i386 running linux. I am getting very confused as to which is the best method of installing. Whether CD based or bootp/rboot based. Any help figuring this out would be greatly appreciated. 

If you have a SCSI CDROM, then the easiest thing to try is to
grab the 0.9.1 ISO from mkhppa1.esiee.fr and try to boot from
it.  However, please wait until the ISO is updated before
downloading, the current one (md5sum 473c....6619) is broken.

Richard





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Subject: Re: [parisc-linux] Problem in palinux-0.9.1 image with directory "debian" !!
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Cc: marteau <marteaut@esiee.fr>, parisc-linux@lists.parisc-linux.org
To: Rafael Herrera <raffo@neuronet.pitt.edu>
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Xref: news.gmane.org gmane.linux.ports.parisc:11518

On Thu, Jul 05, 2001 at 11:44:00AM -0400, Rafael Herrera wrote:
> The is something wrong with the new iso. I get:
> 
> Trying scsi.2.0
> Boot path initialized.
> Attempting to load IPL.
> 
> IPL error: bad LIF magic.
> 
> I verified the md5sum value from that of the website
> (473c029b513472cccab1a4d6e2156619) and burnt the CD a 2x speed. The
> image I got last night booted normally. This a 715/75 machine.

Yep, the new image has a problem.  Expect another update in
a few days.

Alternatively, set up rbootd and netboot the lifimage from the
CD.  Once in the installer, you can install from CD as normal.
I assume you are on serial console?  My 715/75 didn't work with
graphical console last time I tried.

Yet another alternative, if the cd you got "last night" was the
earler 0.9.1 ISO, and you still have it, then boot from that
and switch to the new one before installing anything.

These 0.9.1 ISOs all have the same basic filesystem content, they just
have problems with the palo or mkisofs stage of the mastering.

Richard





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Subject: Re: [parisc-linux] 0.9.1 installation failed with and ext2-fs error
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Xref: news.gmane.org gmane.linux.ports.parisc:11519

On Thu, Jul 05, 2001 at 12:28:44PM -0400, Rafael Herrera wrote:
> While installing the latest 0.9.1 on a 715/75 machine over a serial
> line, the installation halted with this error message:
> 
>  Extracting
>  /var/cache/apt/archives/tar_1.13.19-1_hppa.deb...          EXT2-fs
> error (device sd(8,3)): ext2_write_inode: unable t9
> 
> it looks truncated. I can't provide more error messages. Are there other
> virtual consoles under the installed? if so, how do you switch to them?
> I'm using minicom on an X terminal.

No virtual consoles on a serial install, sorry.

Try again, and when you get to the point of installing base, scroll
down the menu to 'execute a shell'.  Then mount the CD, something
like

mkdir /tmp/cd
mount /dev/scd0 /tmp/cd

(may already be mounted under /instmnt, do 'mount' to check)

Then run debootstrap manually:

debootstrap sid /target file:/tmp/cd

That might give more clues.

Also, check you have minicom running with line wrapping enabled,
and tell it to log to a file.  That way you can find the error
output in the log file afterwards.

Richard





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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Subject: Re: [parisc-linux] palinux 0.9.1
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Hello Richard,

The problem ip_local_deliver:... cames in fact from the dhcp_client which
is started by default?

For the B180, I set console path ro serial_1 and it works fine for serial
console.

For the sti console, I do have to be unlucky; I get backup the kernel
installed with 0.9 then ps2 kbd works back ( I also suspect the kbd and
change it, no difference)? what could be the problem? I also try to get the
last firmware but HP prevent to install it over the builtin ?

I join my last kern.log.  May be could you see some difference in the
hardware configuration that the kernel detect.

Kind regards,
     Joel

(See attached file: kern.log.last)



                                                                           =
                                  =20
                    Richard Hirst                                          =
                                  =20
                    <rhirst@linux        To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD                        =20
                    care.com>            cc:     puffin@esiee.net@SMTP@EURO=
PAY,                              =20
                                         parisc-linux@lists.parisc-linux.or=
g@SMTP@EUROPAY                    =20
                    06-07-01             Subject:     Re: [parisc-linux] pa=
linux 0.9.1                       =20
                    01:08 PM                                               =
                                  =20
                                                                           =
                                  =20
                                                                           =
                                  =20



On Wed, Jul 04, 2001 at 06:44:02PM +0200, Jo=EBl Soete wrote:
> Hi all,
>
> Very nice on 712 model.
> Just a small problem after the configuration of the inet interface:
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
> skb: pf=3D2 (unowned) dev=3Dl0 len=3D328
> PROTO=3D17 0.0.0.0:68 255.255.255.255:67 L=3D328 S=3D0x10 I=3D0 F=3D0x000=
0 T=3D16
>
> This message is repeated severall times?

Don't know what causes that.

> But on the B180, I met the same problem as I met with the kernel
> vmlinux-20010629 (from puffin also with your vmlinux-712+sound+mouse):
> all seems to work fine but the keyboard does not answer (and no serial
> consol yet available) also it is impossible to contine the install?

I'm just installing a B180 using the 0.9.1 ISO, using the graphical
console.  I have a keyboard and mouse connected, and it is working
fine.  I'll try a serial console install next.

Richard



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Subject: Re: [parisc-linux] palinux 0.9.1
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My kern.log.last should be more readable like this:

Jul  6 14:41:23 palin kernel: klogd 1.4.1#2, log source =3D /proc/kmsg
started.
Jul  6 14:41:23 palin kernel: Inspecting /boot/System.map
Jul  6 14:41:25 palin kernel: Loaded 24720 symbols from /boot/System.map.
Jul  6 14:41:25 palin kernel: Symbols match kernel version 2.4.0.
Jul  6 14:41:25 palin kernel: No module symbols loaded.
Jul  6 14:41:25 palin kernel: Linux version 2.4.0-32 (root@slab) (gcc
version 3.0 (Debian)) #1 Thu Jun 28 11:49:00 BST 2001
Jul  6 14:41:25 palin kernel: FP[0] enabled: Rev 1 Model 15
Jul  6 14:41:25 palin kernel: The 32-bit Kernel has started...
Jul  6 14:41:25 palin kernel: Determining PDC firmware type: Newer Box
Jul  6 14:41:25 palin kernel: model^I00005040 00000481 00000000 02020202
77ea2456 100000f0 00000004 000000ba 000000ba
Jul  6 14:41:25 palin kernel: vers^I00000018
Jul  6 14:41:25 palin kernel: cpuid^I000001f8
Jul  6 14:41:25 palin kernel: CPUID^Ivers 15 rev 24
Jul  6 14:41:25 palin kernel: model^I9000/778/B180L
Jul  6 14:41:25 palin kernel: Total Memory: 128 Mb
Jul  6 14:41:25 palin kernel: On node 0 totalpages: 32768
Jul  6 14:41:25 palin kernel: zone(0): 32768 pages.
Jul  6 14:41:25 palin kernel: zone(1): 0 pages.
Jul  6 14:41:25 palin kernel: zone(2): 0 pages.
Jul  6 14:41:25 palin kernel: led_init: chassis info: model=3D1 (unknown),
lcd_width=3D16, cmd_delay=3D40, sizecnt=3D32, actcnt=3D8, maxcnt=3D8
Jul  6 14:41:25 palin kernel: PDC reported no LCD or LED.
Jul  6 14:41:25 palin kernel: Searching for devices...
Jul  6 14:41:25 palin kernel: Found devices:
Jul  6 14:41:25 palin kernel: 1. Phantom PseudoBC GSC+ Port (7) at
0xffc00000, versions 0x504, 0x0, 0x0, 0x0, 0x0
Jul  6 14:41:25 palin kernel: 2. Merlin+ 132 Dino RS-232 (10) at
0xfff83000, versions 0x22, 0x0, 0x8c, 0x0, 0x0
Jul  6 14:41:25 palin kernel: 3. Merlin L2+ 180 (9000/778/B180L) (0) at
0xfffbe000, versions 0x504, 0x0, 0x4, 0x0, 0x81
Jul  6 14:41:25 palin kernel: 4. Merlin+ L2 180 (1) at 0xfffbf000, versions
0x5a, 0x0, 0x9, 0x0, 0x0
Jul  6 14:41:25 palin kernel: 5. Merlin+ 180 Core BA (11) at 0xffd00000,
versions 0x3f, 0x0, 0x81, 0x0, 0x0,  additional addresses: 0xffd0c000
0xffc00000
Jul  6 14:41:25 palin kernel: 6. Merlin+ 180 Core RS-232 (10) at
0xffd05000, versions 0x3f, 0x0, 0x8c, 0x0, 0x0
Jul  6 14:41:25 palin kernel: 7. Merlin+ 180 Core SCSI (10) at 0xffd06000,
versions 0x3f, 0x0, 0x82, 0x0, 0x0
Jul  6 14:41:25 palin kernel: 8. Merlin+ 180 Core Centronics (10) at
0xffd02000, versions 0x3f, 0x0, 0x74, 0x0, 0x0,  additional addresses:
0xffd01000 0xffd03000
Jul  6 14:41:25 palin kernel: 9. Merlin+ 180 Core Audio (10) at 0xffd04000,
versions 0x3f, 0x4, 0x7b, 0x0, 0x0
Jul  6 14:41:25 palin kernel: 10. Merlin+ 180 Core PS/2 Port (10) at
0xffd08000, versions 0x3f, 0x0, 0x84, 0x0, 0x0
Jul  6 14:41:25 palin kernel: 11. Merlin+ 180 Core PS/2 Port (10) at
0xffd08100, versions 0x3f, 0x0, 0x84, 0x0, 0x0
Jul  6 14:41:25 palin kernel: 12. Gecko GSC Core Graphics (10) at
0xf8000000, versions 0x16, 0x0, 0x85, 0x0, 0x0,  additional addresses:
0xf0011000
Jul  6 14:41:25 palin kernel: 13. Dino PCI Bridge (13) at 0xfff80000,
versions 0x680, 0x3, 0xa, 0x0, 0x0,  additional addresses: 0xf0800000
Jul  6 14:41:25 palin kernel: 14. Merlin+ 132 Dino PS/2 Port (10) at
0xfff81000, versions 0x22, 0x0, 0x96, 0x0, 0x0
Jul  6 14:41:25 palin kernel: That's a total of 14 devices.
Jul  6 14:41:25 palin kernel: CPU(s): 1 x PA7300LC (PCX-L2) at 180.000000
MHz
Jul  6 14:41:25 palin kernel: Kernel command line: root=3D/dev/sda3 HOME=3D/
console=3Dtty0 TERM=3Dlinux
Jul  6 14:41:25 palin kernel: Console: colour dummy device 160x64
Jul  6 14:41:25 palin kernel: Calibrating delay loop... 119.60 BogoMIPS
Jul  6 14:41:25 palin kernel: Memory: 126364k available
Jul  6 14:41:25 palin kernel: Dentry-cache hash table entries: 16384
(order: 5, 131072 bytes)
Jul  6 14:41:25 palin kernel: Buffer-cache hash table entries: 4096 (order:
2, 16384 bytes)
Jul  6 14:41:25 palin kernel: Page-cache hash table entries: 32768 (order:
5, 131072 bytes)
Jul  6 14:41:25 palin kernel: Inode-cache hash table entries: 8192 (order:
4, 65536 bytes)
Jul  6 14:41:25 palin kernel: POSIX conformance testing by UNIFIX
Jul  6 14:41:25 palin kernel: Dino version 3.1 (bridge mode) found at
0xfff80000
Jul  6 14:41:25 palin kernel: Lasi version 0 at 0xffd00000 found.
Jul  6 14:41:25 palin kernel: LED display at ffd0c000 registered
Jul  6 14:41:25 palin kernel: Lasi PS/2 wait 2318
Jul  6 14:41:25 palin kernel: Lasi PS/2 wait 4370
Jul  6 14:41:25 palin kernel: PS/2 keyboard controller at 0xffd08000 (irq
133) found, device attached.
Jul  6 14:41:25 palin kernel: Lasi PS/2 wait 3209
Jul  6 14:41:25 palin kernel: PS/2 psaux controller at 0xffd08100 (irq 133)
found, device attached.
Jul  6 14:41:25 palin kernel:
Jul  6 14:41:25 palin kernel: sticonsole_init: searching for STI ROMs
Jul  6 14:41:25 palin kernel: STI word mode ROM at f0011000, hpa=3Df8000000
Jul  6 14:41:25 palin kernel: STI word mode ROM, id 2d08c0a7-9a02587,
conforms to spec rev. 8.07
Jul  6 14:41:25 palin kernel: STI device: INTERNAL_EG_1280
Jul  6 14:41:25 palin kernel: Console: switching to colour STI console
160x64
Jul  6 14:41:25 palin kernel: Linux NET4.0 for Linux 2.4
Jul  6 14:41:25 palin kernel: Based upon Swansea University Computer
Society NET3.039
Jul  6 14:41:25 palin kernel: Starting kswapd v1.8
Jul  6 14:41:25 palin kernel: stifb: Unsupported graphics card
(id=3D0x2d08c0a7) - skipping.
Jul  6 14:41:25 palin kernel: pty: 256 Unix98 ptys configured
Jul  6 14:41:25 palin kernel: request_module[parport_lowlevel]: Root fs not
mounted
Jul  6 14:41:25 palin kernel: lp: driver loaded but no devices found
Jul  6 14:41:25 palin kernel: RAMDISK driver initialized: 16 RAM disks of
6144K size 1024 blocksize
Jul  6 14:41:25 palin kernel: loop: enabling 8 loop devices
Jul  6 14:41:25 palin kernel: Lasi PS/2 wait 2270
Jul  6 14:41:25 palin kernel: Lasi PS/2 wait 4364
Jul  6 14:41:25 palin kernel: Serial driver version 5.02 (2000-08-09) with
MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Jul  6 14:41:25 palin kernel: ttyS00 at iomem 0xffd05800 (irq =3D 154) is a
16550A
Jul  6 14:41:25 palin kernel: ttyS01 at iomem 0xfff83800 (irq =3D 74) is a
16550A
Jul  6 14:41:25 palin kernel: Generic RTC Driver v1.02 05/27/1999 Sam
Creasey (sammy@oh.verio.com)
Jul  6 14:41:25 palin kernel: Linux Tulip driver version 0.9.13 (January 2,
2001)
Jul  6 14:41:25 palin kernel: eth0: Digital DS21143 Tulip rev 65 at 0xff00,
00:10:83:65:09:4B, IRQ 64.
Jul  6 14:41:25 palin kernel: eth0:  MII transceiver #1 config 1000 status
782d advertising 01e1.
Jul  6 14:41:25 palin kernel: parport_init_chip: initialize
bidirectional-mode.
Jul  6 14:41:25 palin kernel: parport0: PC-style at 0xffd02800, irq 152
[PCSPP,TRISTATE]
Jul  6 14:41:25 palin kernel: lp0: using parport0 (interrupt-driven).
Jul  6 14:41:25 palin kernel: SCSI subsystem driver Revision: 1.00
Jul  6 14:41:25 palin kernel: sym53c8xx: at PCI bus 0, device 19, function
0
Jul  6 14:41:25 palin kernel: sym53c8xx: 53c875 detected
Jul  6 14:41:25 palin kernel: sym53c875-0: rev 0x4 on pci bus 0 device 19
function 0 irq 67
Jul  6 14:41:25 palin kernel: sym53c875-0: NCR clock is 40401KHz
Jul  6 14:41:25 palin kernel: sym53c875-0: ID 7, Fast-20, Parity Checking
Jul  6 14:41:25 palin kernel: sym53c875-0: on-chip RAM at 0xf0ffe000
Jul  6 14:41:25 palin kernel: sym53c875-0: restart (scsi reset).
Jul  6 14:41:25 palin kernel: sym53c875-0: Downloading SCSI SCRIPTS.
Jul  6 14:41:25 palin kernel: scsi0 : sym53c8xx - version 1.6b
Jul  6 14:41:25 palin kernel:   Vendor: SEAGATE   Model: ST39140WS
Rev: HP03
Jul  6 14:41:25 palin kernel:   Type:   Direct-Access
ANSI SCSI revision: 02
Jul  6 14:41:25 palin kernel: sym53c875-0-<6,0>: tagged command queue depth
set to 8
Jul  6 14:41:25 palin kernel: sim700: Configuring 53c710 (SCSI-ID 7) at
ffd06100, IRQ 150, options 0
Jul  6 14:41:25 palin kernel: scsi1: Revision 0x2
Jul  6 14:41:25 palin kernel: scsi1: test 1 completed ok.
Jul  6 14:41:25 palin kernel: scsi1 : LASI/Simple 53c7xx
Jul  6 14:41:25 palin kernel:   Vendor: HP        Model: DVD-ROM 6x/32x
Rev: 1.08
Jul  6 14:41:25 palin kernel:   Type:   CD-ROM
ANSI SCSI revision: 02
Jul  6 14:41:25 palin kernel: Detected scsi disk sda at scsi0, channel 0,
id 6, lun 0
Jul  6 14:41:25 palin kernel: sym53c875-0-<6,0>: wide msgout: 1-2-3-1.
Jul  6 14:41:25 palin kernel: sym53c875-0-<6,0>: wide msgin: 1-2-3-1.
Jul  6 14:41:25 palin kernel: sym53c875-0-<6,0>: wide: wide=3D1 chg=3D0.
Jul  6 14:41:25 palin kernel: sym53c875-0-<6,0>: wide msgout: 1-2-3-1.
Jul  6 14:41:25 palin kernel: sym53c875-0-<6,0>: wide msgin: 1-2-3-1.
Jul  6 14:41:25 palin kernel: sym53c875-0-<6,0>: wide: wide=3D1 chg=3D0.
Jul  6 14:41:25 palin kernel: sym53c875-0-<6,0>: sync msgout: 1-3-1-c-10.
Jul  6 14:41:25 palin kernel: sym53c875-0-<6,0>: sync msg in: 1-3-1-c-f.
Jul  6 14:41:25 palin kernel: sym53c875-0-<6,0>: sync: per=3D12 scntl3=3D0x=
90
scntl4=3D0x0 ofs=3D15 fak=3D0 chg=3D0.
Jul  6 14:41:25 palin kernel: sym53c875-0-<6,*>: FAST-20 WIDE SCSI 40.0
MB/s (50 ns, offset 15)
Jul  6 14:41:25 palin kernel: SCSI device sda: 17773524 512-byte hdwr
sectors (9100 MB)
Jul  6 14:41:25 palin kernel: Partition check:
Jul  6 14:41:25 palin kernel:  sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 >
Jul  6 14:41:25 palin kernel: Detected scsi CD-ROM sr0 at scsi1, channel 0,
id 0, lun 0
Jul  6 14:41:25 palin kernel: sr0: scsi3-mmc drive: 0x/0x cd/rw xa/form2
cdda tray
Jul  6 14:41:25 palin kernel: Uniform CD-ROM driver Revision: 3.12
Jul  6 14:41:25 palin kernel: Lasi Harmony Audio rev. 0 at 0xffd04000,
using IRQ 146
Jul  6 14:41:25 palin kernel: md driver 0.90.0 MAX_MD_DEVS=3D256,
MD_SB_DISKS=3D27
Jul  6 14:41:25 palin kernel: md.c: sizeof(mdp_super_t) =3D 4096
Jul  6 14:41:25 palin kernel: NET4: Linux TCP/IP 1.0 for NET4.0
Jul  6 14:41:25 palin kernel: IP Protocols: ICMP, UDP, TCP
Jul  6 14:41:25 palin kernel: IP: routing cache hash table of 512 buckets,
4Kbytes
Jul  6 14:41:25 palin kernel: TCP: Hash tables configured (established 8192
bind 16384)
Jul  6 14:41:25 palin kernel: IP-Config: Incomplete network configuration
information.
Jul  6 14:41:25 palin kernel: NET4: Unix domain sockets 1.0/SMP for Linux
NET4.0.
Jul  6 14:41:25 palin kernel: VFS: Mounted root (ext2 filesystem) readonly.
Jul  6 14:41:25 palin kernel: Adding Swap: 124924k swap-space (priority -1)

Joel,

PS: Sorry in the office we have to change of mail program and I not yet
familiar with it.



                                                                           =
                                  =20
                    Richard Hirst                                          =
                                  =20
                    <rhirst@linux        To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD                        =20
                    care.com>            cc:     puffin@esiee.net@SMTP@EURO=
PAY,                              =20
                                         parisc-linux@lists.parisc-linux.or=
g@SMTP@EUROPAY                    =20
                    06-07-01             Subject:     Re: [parisc-linux] pa=
linux 0.9.1                       =20
                    01:08 PM                                               =
                                  =20
                                                                           =
                                  =20
                                                                           =
                                  =20



On Wed, Jul 04, 2001 at 06:44:02PM +0200, Jo=EBl Soete wrote:
> Hi all,
>
> Very nice on 712 model.
> Just a small problem after the configuration of the inet interface:
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
> skb: pf=3D2 (unowned) dev=3Dl0 len=3D328
> PROTO=3D17 0.0.0.0:68 255.255.255.255:67 L=3D328 S=3D0x10 I=3D0 F=3D0x000=
0 T=3D16
>
> This message is repeated severall times?

Don't know what causes that.

> But on the B180, I met the same problem as I met with the kernel
> vmlinux-20010629 (from puffin also with your vmlinux-712+sound+mouse):
> all seems to work fine but the keyboard does not answer (and no serial
> consol yet available) also it is impossible to contine the install?

I'm just installing a B180 using the 0.9.1 ISO, using the graphical
console.  I have a keyboard and mouse connected, and it is working
fine.  I'll try a serial console install next.

Richard





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From - Thu Nov 08 21:18:18 2018
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From: "rpengelly" <rpengelly@ati.stlawrencec.on.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] opening initial console
Date: Fri, 6 Jul 2001 10:19:31 -0400
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Well good news and bad news. We've gotten a linux kernal to boot over a =
network using rbootd and bootp. However just after the root is mounted =
we get the following message:

NFS: Mounted root (nfs filesystem) readonly.
Warning: unable to open an initial console.
Kernel panic: no int found. Try passing init=3D option to kernel.

Anyone run into this problem or know how to fix it.

------=_NextPart_000_000A_01C10605.2548B690
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	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Well good news and bad news. We've =
gotten a linux=20
kernal to boot over a network using rbootd and bootp. However just after =
the=20
root is mounted we get the following message:</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>NFS: Mounted root (nfs filesystem)=20
readonly.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Warning: unable to open an initial=20
console.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Kernel panic: no int found. Try passing =
init=3D=20
option to kernel.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Anyone run into this problem or know =
how to fix=20
it.</FONT></DIV></BODY></HTML>

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From - Thu Nov 08 21:18:18 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] sticon problems
Date: Fri, 6 Jul 2001 15:32:02 +0100
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Hi,
  I've noticed two problems installing with sticon (not stifb),
on a B180.

First, cfdisk is supposed to show a highlighted bar over the
current partition on its main display.  It does not, so it
is difficult to know which partition you are working on.

Second, tasksel gives no indication at all which box is
active; it is only by toggling selections on and off that you
can work out where the cursor is.

I know there are limitations with the sti console, but it would
be nice if we could somehow translate attributes such that these
areas of the install worked better.

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] opening initial console
Date: Fri, 6 Jul 2001 15:39:37 +0100
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In-Reply-To: <000d01c10626$ac7139f0$0f809b8e@ati.stlawrencec.on.ca>; from rpengelly@ati.stlawrencec.on.ca on Fri, Jul 06, 2001 at 10:19:31AM -0400
Xref: news.gmane.org gmane.linux.ports.parisc:11524

On Fri, Jul 06, 2001 at 10:19:31AM -0400, rpengelly wrote:
> Well good news and bad news. We've gotten a linux kernal to boot over a network using rbootd and bootp. However just after the root is mounted we get the following message:
> 
> NFS: Mounted root (nfs filesystem) readonly.
> Warning: unable to open an initial console.
> Kernel panic: no int found. Try passing init= option to kernel.
> 
> Anyone run into this problem or know how to fix it.

Sounds like you have tried to boot a kernel over the network, and
have it mount a root file system also over the network.  The problem
is likely to be that the kernel failed to find any useful files on
the file system it mounted - no /dev/tty*, no /sbin/init, etc.
Could be access permisions problems.  Try mounting the fs from some
other system and check things look ok.

If you grab the 0.9.1 ISO and boot the lifimage from that, the
lifimage contains 32 and 64 bit kernels, and a ramdisk.  It should
boot and mount root from the ramdisk (not from nfs).

Richard





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From: "rpengelly" <rpengelly@ati.stlawrencec.on.ca>
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Subject: Re: [parisc-linux] opening initial console
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I'm confused about booting from a lifimage. How do we go about this. Note:
we are unbale to install via CDROM because of harware issues so we are
relying on a network install.

P.S. Thanks for all your help so far. We need all we can get.

----- Original Message -----
From: "Richard Hirst" <rhirst@linuxcare.com>
To: "rpengelly" <rpengelly@ati.stlawrencec.on.ca>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Friday, July 06, 2001 10:39 AM
Subject: Re: [parisc-linux] opening initial console



> Sounds like you have tried to boot a kernel over the network, and
> have it mount a root file system also over the network.  The problem
> is likely to be that the kernel failed to find any useful files on
> the file system it mounted - no /dev/tty*, no /sbin/init, etc.
> Could be access permisions problems.  Try mounting the fs from some
> other system and check things look ok.
>
> If you grab the 0.9.1 ISO and boot the lifimage from that, the
> lifimage contains 32 and 64 bit kernels, and a ramdisk.  It should
> boot and mount root from the ramdisk (not from nfs).
>
> Richard
>





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] opening initial console
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Xref: news.gmane.org gmane.linux.ports.parisc:11526

On Fri, Jul 06, 2001 at 11:09:17AM -0400, rpengelly wrote:
> I'm confused about booting from a lifimage. How do we go about this. Note:
> we are unbale to install via CDROM because of harware issues so we are
> relying on a network install.

palo can take a kernel image and wrap stuff round it to make a bootable
image.  That is called a lifimage.  You managed to boot from the
network, so you must have booted a lifimage format file.  You must
have put that lifimage somewhere that bootp/rbootd could find it
when asked by your parisc box.  On the CD is a file called lifimage,
in dists/sid/main/disks-hppa/current/lifimage (or similar).  Simply
copy that file to your bootp server, placing it and naming it as
you did for whatever you booted last time.  Then tell your parisc
box to boot from the network.  Don't interact with the IPL to modify
any kernel boot parameters - it should all "just work".

You should get the installer release notes page displayed, hit return
and you are in to the main installer menu.

Once you have the system installed and using palo to boot from disk,
palo uses plain kernel image files, not lifimages.  Those live in
/boot/vmlinuz or similar, and should be set up for you during the
install.

Hope that helps, ask again if not.

Richard





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From: Paul Bame <bame@fc.hp.com>
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Subject: [parisc-linux] 2.4.6 boots!
Date: Fri, 06 Jul 2001 15:47:43 -0600
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2.4.6-pa2 boots (serial console) both 64 and 32-bit on c3000 and
b180.  It may be hanging on 712 (I had to remove CONFIG_GSC_WAX
to get rid of an infinite loop).  Boot-time IP configuration
(PNP+BOOTP) isn't working (with tulip anyway) but static network
configuration works.  I just laid down the LINUS_246_DEVEL tag
so I guess the tree's open for business again.

	-P




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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] 2.4.6 boots!
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> to get rid of an infinite loop).  Boot-time IP configuration
> (PNP+BOOTP) isn't working (with tulip anyway) but static network
> configuration works.  I just laid down the LINUS_246_DEVEL tag
> so I guess the tree's open for business again.

Congratulations folks




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] 2.4.6 boots!
Date: Fri, 6 Jul 2001 23:35:18 +0100
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On Fri, Jul 06, 2001 at 03:47:43PM -0600, Paul Bame wrote:
> Boot-time IP configuration
> (PNP+BOOTP) isn't working (with tulip anyway) but static network
> configuration works.

Apparently this changed upstream so you need to specify ip=bootp on
the kernel command line.  My palo/Makefile now reads:

CMDLINE = 0/vmlinux64 HOME=/ TERM=linux $(ROOT) $(CONSOLE) ip=bootp sym53c8xx=buschk:2

NFS Root is now working on my machine.

-- 
Revolutions do not require corporate support.




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From: Gururaj Ananthateerta <gururaj@cup.hp.com>
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Subject: [parisc-linux] Installation on B180L workstation.
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I am trying to install on B180L.  I have an external CD ROM.
 Does installation supports this configuration. ? If not
how can i install?







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From: Scott Ashcroft <scott.ashcroft@talk21.com>
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Subject: [parisc-linux] 2.4.6-pa5 crashes on B160L
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2.4.0-pa51 boots fine. 2.4.6-pa5 goes:

Dumping Stack from 10554000 to 10554840:
4000 00000000 00000040 00000000 00000000 102833a0 00000000 00000000
ffffffff
4020 00000003 00000000 00000000 00000000 00000000 00000000 ffffffff
102832a0
4040 102832a0 0000001f 10548000 102cc000 10289600 00000000 00000000
00000000
4060 00000000 00000000 00000000 00000001 00000000 00000000 00000000
00000000
4080 00000000 102cc000 102cc000 10074000 00000000 00000000 10074098
102cc098
40a0 00000000 102ea01c 105540a8 105540a8 10554808 00000000 00000000
00000000
40c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
10554000
40e0 10119f98 00000000 00000001 00000000 00000000 0000001e 00000000
0000001f
4100 00000000 00000000 00000000 00000000 00000000 00000000 80000000
00000000
4120 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4140 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4160 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4180 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
41a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
41c0 fffffeff 00000000 ffffffff 00000000 10283f64 ffffffff ffffffff
ffffffff
41e0 ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff
ffffffff
4200 ffffffff 000007bb 000007bb 00000400 00000400 ffffffff ffffffff
ffffffff
4220 ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000
00000000
4240 00000000 00000000 00000000 00000000 00000000 00000000 f0000c30
f0100000
4260 000000fd 00000001 00000001 1029ccd4 0004000e 0000004d 0000004e
f000a37c
4280 00043002 0006e000 00007bbb 00800327 00000000 00000000 00007bbb
00800327
42a0 00007bbb 10284810 00000001 1055cba0 102465bc 0004000e 0000004d
00000000
42c0 10100130 10118414 00000000 00007bbb 00800327 f0100000 102d3667
0000004d
42e0 00000024 0000003c 0000003e 10283010 00000001 102d3667 f000a37c
102d3643
4300 102d3643 00007bbb 00000002 0000001d 00007bbb 102d7810 102dc044
00000001
4320 1025b278 0006e000 f000a37c 00043002 0006e000 00007bbb 00008124
102d3643
4340 102d3643 101581a4 0000001d 00000800 00007bbb f0100000 00000003
00000000
4360 102cc554 1025b464 00000000 1030d0c0 00000020 10284438 00000005
10284010
4380 1028443c 101581a4 00000018 000000c0 102cc840 1012d4ac 00000003
00000000
43a0 102cc594 1025b270 00000000 1030de40 00000020 10284438 00000002
10284010
43c0 1028443c 10157c00 00000000 00000000 00000000 00000000 0000004e
00008124
43e0 00000001 102cc594 000000f0 1030d240 00000000 10037000 1055e040
f0000174
4400 f0000c30 10131fb0 0000000f 00000001 00000001 10554740 10105cf8
00000001
4420 000000f0 00043002 000000f0 1030d0c0 0028a000 00000000 10289040
10289060
4440 102891fc 00000000 00000000 00000000 1055444c 00000000 00000000
00000000
4460 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4480 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
44a0 00000000 00000000 00000000 10105c4c 00000000 00000000 00000000
00000000
44c0 102cc000 00000000 aaaaaaaa 00000000 00000000 00000000 00000000
00000000
44e0 00000000 00000000 00000000 10100144 00000000 00000000 00000000
00000000
4500 00000000 aaaaaaaa 00000000 00000000 00000000 00000000 00000000
00000000
4520 00000000 00000000 00000000 1029ce6c 00000000 00000000 00000000
00000000
4540 102e9810 10554000 10289600 102cc000 102c955c 102c9520 00000000
1055454c
4560 1055454c 00000000 102c955c 102a3258 00000000 00000000 00000000
00000000
4580 102c955c 1029ccd4 0004000e 0000004d 102e9810 10284ee4 10289600
102cc000
45a0 102c955c 102c9518 10554000 102a4e8c 102cc000 102c955c 102c94e8
00000000
45c0 102916fc 00000040 102e4404 102e4348 102916fc 00000040 1025cff8
1025d274
45e0 102e3010 102e3010 102c9518 102a4980 102cc000 102c955c 102c9508
10554548
4600 0004fe0f 10294810 102a4980 10291010 102917c4 102e4348 102e4404
10000080
4620 1028e748 0000004d 0004000e 1029ccd4 00000001 00000001 000000fd
f0100000
4640 f0000c30 f0000174 00000020 1025d080 1028d26c 10294cf4 10294810
00000002
4660 102659e8 102954c8 102917c4 1026e010 00000000 102e9810 10554840
102d7810
4680 000f0800 00000000 0000001f 00000000 0000001f 00000000 0000001f
00000000
46a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
46c0 00000010 00000020 7f7fffff ffffffff 43ebebeb e0000000 00000000
00000000
46e0 45e69c6a 25b7ea20 41800000 00000000 00000010 00000010 00000000
00000000
4700 00000040 00000080 00000100 00000200 00000400 00000800 7fffffff
7fffffff
4720 41000000 00000000 7fffffff 7fffffff 40800000 00000000 41000000
00000000
4740 40300000 00000000 40200000 00000000 40200000 00000000 41800000
7fffffff
4760 40000000 00000000 40000000 00000000 40800000 00000000 41000000
00000000
4780 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
47a0 00000000 00000000 102a4990 102a4994 f0102918 00000000 0004000e
0000004d
47c0 102d366e 0000001f 0e601200 00000000 1025d080 10283010 00000001
102d366e
47e0 102ed5a0 102d3646 102d3643 101bad34 0000000f 00000001 00000001
1029ccd4
4800 00000002 ffffffff ffffffff 0000000a 00000020 00000000 1026ceac
105547c9
4820 00000020 f0000174 f0000c30 10106748 0000000f 00000001 00000001
1029ccd4

Kernel Fault: Code=26 regs=10554600 (Addr=1025d080)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111000001111
r0-3     00000000 10294810 102a4980 10291010
r4-7     102917c4 102e4348 102e4404 10000080
r8-11    1028e748 0000004d 0004000e 1029ccd4
r12-15   00000001 00000001 000000fd f0100000
r16-19   f0000c30 f0000174 00000020 1025d080
r20-23   1028d26c 10294cf4 10294810 00000002
r24-27   102659e8 102954c8 102917c4 1026e010
r28-31   00000000 102e9810 10554840 102d7810
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 102a4990 102a4994
 IIR: 0e601200    ISR: 00000000  IOR: 1025d080
 ORIG_R28: 0004000e

What else is needed to debug this? Is there a ksymoops equivalent?
I can supply .config, System.map on request.

Cheers,
Scott




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On Sun, Jul 08, 2001 at 04:21:28PM +0100, Scott Ashcroft wrote:
> 2.4.0-pa51 boots fine. 2.4.6-pa5 goes:
> 
> Dumping Stack from 10554000 to 10554840:

The stack dump isn't really necessary ... Does anyone else think we
should turn it off by default?

> Kernel Fault: Code=26 regs=10554600 (Addr=1025d080)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111000001111
> r0-3     00000000 10294810 102a4980 10291010
> r4-7     102917c4 102e4348 102e4404 10000080
> r8-11    1028e748 0000004d 0004000e 1029ccd4
> r12-15   00000001 00000001 000000fd f0100000
> r16-19   f0000c30 f0000174 00000020 1025d080
> r20-23   1028d26c 10294cf4 10294810 00000002
> r24-27   102659e8 102954c8 102917c4 1026e010
> r28-31   00000000 102e9810 10554840 102d7810
> sr0-3    00000000 00000000 00000000 00000000
> sr4-7    00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 102a4990 102a4994
>  IIR: 0e601200    ISR: 00000000  IOR: 1025d080
>  ORIG_R28: 0004000e
> 
> What else is needed to debug this? Is there a ksymoops equivalent?
> I can supply .config, System.map on request.

I tend to look it up by hand -- 102a4990 is the most interesting address,
(IAOQ) and r2 is sometimes also interesting (not in this case, it
would seem).

It'd also be helpful to show where the kernel got to before it did the
stack dump -- might help track it down.
-- 
Revolutions do not require corporate support.




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Matthew Wilcox wrote:
> The stack dump isn't really necessary ... Does anyone else think we
> should turn it off by default?
...

No. I don't think we should turn it off.
Not until we can get memory core dumps on crashes like HPUX does.

> It'd also be helpful to show where the kernel got to before it did the
> stack dump -- might help track it down.

Isn't that what the stack dump is for?

If one is really good (like jsm) and has a matching vmlinux and System.map,
one can backtrace the stack by hand by looking at stack frame (return pointer
is in the stack frame) and seeing how much each subroutine grows the stack
(look at code around subroutine call, iirc). I think the mail archives
have a concise desription of exactly how to use the stack dump.
But I am too lazy to look for it now.

If one is lazy and not quite so good (like me), then look at build-tools/astk
script. astk can sift through the stackdump for kernel symbols to produce
something almost sortof like a stack trace with some extra garbage in it.

> > What else is needed to debug this? Is there a ksymoops equivalent?
> > I can supply .config, System.map on request.
> 
> I tend to look it up by hand -- 102a4990 is the most interesting address,
> (IAOQ) and r2 is sometimes also interesting (not in this case, it
> would seem).

I use build-tools/a.c (compiled of course) to lookup symbols in a System.map.

The only other thing needed to debug the problem is for someone to unwind
the stack, see how it got where it was and then stare at the code until it's
clear why it crashed.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: [parisc-linux] I think WAX is broken
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Lamont just reported:

<lamont_work> Wax EISA: Ack, cannot read from 0xff48
<lamont_work> Wax EISA: Ack, cannot write to 0xff48
<lamont_work> Wax EISA: Ack, cannot read from 0xff48

so I took a look.

#define WAX_EISA_OUT(type, size) \
static void wax_out##type (struct pci_hba_data *hba, u16 addr, u##size d) \
{ \
	u32 out_addr; \
	if (((addr >= 0x00080000) && (addr < 0x00100000)) || \
		((addr >= 0x00500000) && (addr < 0x03C00000))) { \
		out_addr = 0xfc000000 + ((addr & 0xfc00) >> 6) + \
			((addr & 0x03f8) << 9) + (addr & 0x0007) ; \
		gsc_write##type(d,out_addr); \
	} else { \
		printk(KERN_ERR "Wax EISA: Ack, cannot write to 0x%x\n",addr); \
	} \
} 

`addr' is a u16.  it can't possibly be >= 0x00080000 or >= 0x00500000.
in <asm-parisc/pci.h>:

/* 
** We support 2^16 I/O ports per HBA.  These are set up in the form
** 0xbbxxxx, where bb is the bus number and xxxx is the I/O port
** space address.
*/
#define HBA_PORT_SPACE_BITS	16

#define HBA_PORT_BASE(h)	((h) << HBA_PORT_SPACE_BITS)
#define HBA_PORT_SPACE_SIZE	(1UL << HBA_PORT_SPACE_BITS)

#define PCI_PORT_HBA(a)		((a) >> HBA_PORT_SPACE_BITS)
#define PCI_PORT_ADDR(a)	((a) & (HBA_PORT_SPACE_SIZE - 1))

struct pci_port_ops {
	  u8 (*inb)  (struct pci_hba_data *hba, u16 port);
	 u16 (*inw)  (struct pci_hba_data *hba, u16 port);
	 u32 (*inl)  (struct pci_hba_data *hba, u16 port);
	void (*outb) (struct pci_hba_data *hba, u16 port,  u8 data);
	void (*outw) (struct pci_hba_data *hba, u16 port, u16 data);
	void (*outl) (struct pci_hba_data *hba, u16 port, u32 data);
};

Then in arch/parisc/kernel/pci.c, we have the wonderfully obscured:

#define PCI_PORT_OUT(type, size) \
void out##type (u##size d, int addr) \
{ \
	int b = PCI_PORT_HBA(addr); \
	ASSERT(pci_port); \
	pci_port->out##type(parisc_pci_hba[b], PCI_PORT_ADDR(addr), d); \
}

PCI_PORT_OUT(b,  8)
PCI_PORT_OUT(w, 16)
PCI_PORT_OUT(l, 32)

So I _think_ the right fix is to change WAX_EISA_OUT to:

#define WAX_EISA_OUT(type, size) \
static void wax_out##type (struct pci_hba_data *hba, u16 addr, u##size d) \
{ \
	u32 out_addr = 0xfc000000 + ((addr & 0xfc00) >> 6) + \
			((addr & 0x03f8) << 9) + (addr & 0x0007) ; \
	gsc_write##type(d,out_addr); \
} 

(and WAX_EISA_IN has the same issue, of course).

Comments?

-- 
Revolutions do not require corporate support.




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On Sun, Jul 08, 2001 at 05:31:25PM -0600, Grant Grundler wrote:
> No. I don't think we should turn it off.
> Not until we can get memory core dumps on crashes like HPUX does.

So far, I've seen _one_ useful stack dump posted to this list.  The others
have just caused extra hassle & confusion for our users.  And that
one stack dump was from Ryan , after repeated to-ing-and-froing with a
repeatable problem -- so he could have turned on an option very easily.

> Isn't that what the stack dump is for?

It's only useful if you've also got the System.map.  If we didn't do
the stack dump, the users would probably send more information which
came before the stack dump.

-- 
Revolutions do not require corporate support.




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Matthew Wilcox wrote:
...
> `addr' is a u16.  it can't possibly be >= 0x00080000 or >= 0x00500000.

Yup - that's definitely broken.

...
> Then in arch/parisc/kernel/pci.c, we have the wonderfully obscured:

Hey! that's mine! :^P

...
> So I _think_ the right fix is to change WAX_EISA_OUT to:
> 
> #define WAX_EISA_OUT(type, size) \
> static void wax_out##type (struct pci_hba_data *hba, u16 addr, u##size d) \
> { \
> 	u32 out_addr = 0xfc000000 + ((addr & 0xfc00) >> 6) + \
> 			((addr & 0x03f8) << 9) + (addr & 0x0007) ; \
> 	gsc_write##type(d,out_addr); \
> } 

Someone needs to understand what "((addr & 0xfc00) >> 6)" does.
It looks like it overlaps with "((addr & 0x03f8) << 9)".

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:18:19 2018
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Subject: Re: [parisc-linux] 2.4.6-pa5 crashes on B160L
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Xref: news.gmane.org gmane.linux.ports.parisc:11537

Matthew Wilcox wrote:
> If we didn't do
> the stack dump, the users would probably send more information which
> came before the stack dump.

*sigh*
My gut feeling is you are right.
Despite asking for *full* console output, seems everyone trims the output.
I'm not sure an option would fix this. Perhaps we only get register dumps
instead. :^/

However, it's useful as an option if one can (a) reproduce the problem and
(b) enable stack dump as a boot parameter with exactly the same kernel bits.

Sorry for the 180 so suddenly.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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On Sun, Jul 08, 2001 at 07:03:20PM -0600, Grant Grundler wrote:
> Hey! that's mine! :^P

It's still obscure.  I know x86 does something similar, and I think it's
obfuscated too.

> Someone needs to understand what "((addr & 0xfc00) >> 6)" does.
> It looks like it overlaps with "((addr & 0x03f8) << 9)".

fc00 >> 6 = 3f0
03f8 << 9 = 7f000
7 = 7

1111'1100'0000'0000 -> 0000'0000'0011'1111'0000
0000'0011'1111'1000 -> 0111'1111'0000'0000'0000
0000'0000'0000'0111 -> 0000'0000'0000'0000'0111

1111'1111'1111'1111 -> 0111'1111'0011'1111'0111

Icky.  And it means we can't do away with the function calls for inb/outb.
*sigh*.

-- 
Revolutions do not require corporate support.




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From: Scott Ashcroft <scott.ashcroft@talk21.com>
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Subject: Re: [parisc-linux] 2.4.6-pa5 crashes on B160L
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On Sun, Jul 08, 2001 at 10:10:12PM +0100, Matthew Wilcox wrote:
> On Sun, Jul 08, 2001 at 04:21:28PM +0100, Scott Ashcroft wrote:
> > Kernel Fault: Code=26 regs=10554600 (Addr=1025d080)
> > 
> >      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > PSW: 00000000000001001111111000001111
> > r0-3     00000000 10294810 102a4980 10291010
> > r4-7     102917c4 102e4348 102e4404 10000080
> > r8-11    1028e748 0000004d 0004000e 1029ccd4
> > r12-15   00000001 00000001 000000fd f0100000
> > r16-19   f0000c30 f0000174 00000020 1025d080
> > r20-23   1028d26c 10294cf4 10294810 00000002
> > r24-27   102659e8 102954c8 102917c4 1026e010
> > r28-31   00000000 102e9810 10554840 102d7810
> > sr0-3    00000000 00000000 00000000 00000000
> > sr4-7    00000000 00000000 00000000 00000000
> > 
> > IASQ: 00000000 00000000 IAOQ: 102a4990 102a4994
> >  IIR: 0e601200    ISR: 00000000  IOR: 1025d080
> >  ORIG_R28: 0004000e
> > 
> > What else is needed to debug this? Is there a ksymoops equivalent?
> > I can supply .config, System.map on request.
> 
> I tend to look it up by hand -- 102a4990 is the most interesting address,
> (IAOQ) and r2 is sometimes also interesting (not in this case, it
> would seem).

102a494c ? probe_serial_pci

would seem to be the one.

> It'd also be helpful to show where the kernel got to before it did the
> stack dump -- might help track it down.

Forgot to say it was right at the start of booting.

Cheers,
Scott





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] palinux 0.9.1
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On Fri, Jul 06, 2001 at 02:57:19PM +0200, Jol Soete wrote:
> 
> 
> Hello Richard,
> 
> The problem ip_local_deliver:... cames in fact from the dhcp_client which
> is started by default?

I reproduced that problem; hadn't seen it before because I usually
use dhcp to configure my network.  Seems you only get the errors if
dhcp-client doesn't have any real interfaces to configure.

> For the sti console, I do have to be unlucky; I get backup the kernel
> installed with 0.9 then ps2 kbd works back ( I also suspect the kbd and
> change it, no difference)? what could be the problem? I also try to get the
> last firmware but HP prevent to install it over the builtin ?

You are not the only person with this problem, so hopefully someone will
fix it soon.

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Installation on B180L workstation.
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On Fri, Jul 06, 2001 at 04:09:30PM -0700, Gururaj Ananthateerta wrote:
> I am trying to install on B180L.  I have an external CD ROM.
>  Does installation supports this configuration. ? If not
> how can i install?

Should work, so far as I know.  Please can you give more information:

What CD are you trying to install from? 0.9 ISO? 0.9.1 ISO?
(0.9.1 ISO has some problems, I hope a fixed one will be posted
soon).

Serial console or graphical console?

Does the system find the CDROM when you do a SEArch?

What happens when you try the install, exactly?


Richard





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From: Matthieu Le Corre <matthieu.lecorre@polytech.univ-nantes.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] sti console problem
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i got a 735 appollo series ,with 0.9 iso installed 
i've installed sti kernel all work execpt that i get an 'unable to open 
initial console " all right seems to be good
don't undestand why it failed ,
need help !!!
-- 
_______________________________________

                      Matthieu Le Corre 
                    Service informatique
 Ecole Polytechnique de l'Universit de Nantes
     Matthieu.Lecorre@polytech.univ-nantes.fr
                        02.40.68.32.23
_______________________________________




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From: LaMont Jones <lamont@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: B132 dies too (was Re: [parisc-linux] 2.4.6-pa5 crashes on B160L)
Date: Mon, 09 Jul 2001 09:34:38 -0600
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My B132 (which works 2.4.0) crashes sometime between palo launching the
kernel, and it having a working console (serial).  That is to say, no info
at all.  If someone wants the machine in order to debug it, just holler...

> If one is really good (like jsm) and has a matching vmlinux and System.map,
> one can backtrace the stack by hand by looking at stack frame (return pointer
> is in the stack frame) and seeing how much each subroutine grows the stack
> (look at code around subroutine call, iirc). I think the mail archives
> have a concise desription of exactly how to use the stack dump.
> But I am too lazy to look for it now.

Backtracing is extremely straight-forward, and can be automated, AFAIK.
Walking the stack forward is a bit more challenging, but not entirely
beyond possibility most of the time...

lamont




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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Subject: Re: [parisc-linux] palinux 0.9.1
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FYI

I just recompile last cvs kernel (20010709 ie 2.4.6-pa7)
It boot fine (whithout yet STICON, just as before kernel of palinux-0.9).
So I believe that STICON on B180 will work soon.

Kind regards,
     Joel



                                                                           =
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                    Richard Hirst                                          =
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                    <rhirst@linux        To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD                        =20
                    care.com>            cc:     "Richard Hirst <rhirst"   =
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g@SMTP@EUROPAY,                   =20
                    09:46 AM             puffin@esiee.net@SMTP@EUROPAY     =
                                  =20
                                         Subject:     Re: [parisc-linux] pa=
linux 0.9.1                       =20
                                                                           =
                                  =20



On Fri, Jul 06, 2001 at 02:57:19PM +0200, Jo=EBl Soete wrote:
>
>
> Hello Richard,
>
> The problem ip_local_deliver:... cames in fact from the dhcp_client which
> is started by default?

I reproduced that problem; hadn't seen it before because I usually
use dhcp to configure my network.  Seems you only get the errors if
dhcp-client doesn't have any real interfaces to configure.

> For the sti console, I do have to be unlucky; I get backup the kernel
> installed with 0.9 then ps2 kbd works back ( I also suspect the kbd and
> change it, no difference)? what could be the problem? I also try to get
the
> last firmware but HP prevent to install it over the builtin ?

You are not the only person with this problem, so hopefully someone will
fix it soon.

Richard





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From - Thu Nov 08 21:18:20 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] palinux 0.9.1
Date: Mon, 9 Jul 2001 18:26:32 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:11545

On Wed, Jul 04, 2001 at 06:44:02PM +0200, Jol Soete wrote:
> Hi all,
> 
> Very nice on 712 model.
> Just a small problem after the configuration of the inet interface:
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
> skb: pf=2 (unowned) dev=l0 len=328
> PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
> 
> This message is repeated severall times?

This is a problem with dhcp-client 2.x.  It installs /etc/init.d
scripts which start dhclient on boot.  It should not be started on
boot, as it is now invoked via /etc/network/inferfaces and ifup/ifdown.
I have just done some tests with dhcp-client 3.0beta2RC10-1, which
cures the problem.

Richard





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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] palinux 0.9.1
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Hi all,

	I am back from LSM. So, I uploaded the 0.9.1 iso, I hope. I tried on
B132 and it went fine.
So, just download it and try.
If you experienced some troubles with the keyboard, just try to unplug
and plug it back... It should work.
Also, when it asks you some path, just hit return...

My apaologies again for the delay, Thomas
ESIEE Team




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From: "Andy Walker" <squawker@start.no>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] palinux 0.9.1
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> On Mon, Jul 09, 2001 at 01:47:54PM +0200, Andy Walker wrote:
> > Quoting Richard Hirst <rhirst@linuxcare.com>:
> > > 
> > > You are not the only person with this problem, so
> > > hopefully someone will fix it soon.
> > > 
> > > Richard
> > 
> > Hi folks,
> > 
> > Just a note to say that I'm experiencing this too. I've
> > a B132L, 192MB, 2gb+4gb wide/diff disks. Firmware is
> > patched up to 6.1, the latest I could find. Boots nicely
> > now that I told it the console is on the built in frame
> > buffer GRAPHICS(0) rather than the HCRX24/GRAPHICS(2) -
> > but the ps/2 keyboard locks up at the first Debian
> > install screen.
> > 
> > Time for a serial install I guess.
> 
> I've just heard that this might be a keyboard reset problem, and
> simply unplugging and replugging the keyboard at that point may
> make it work.
> 
> Richard

I'm afraid not :-( Didn't work for me 5 minutes ago. I noticed
there's a WAX HIL device on these B models - pity there's no
connector for that 'cos I've got a HIL keyboard and mouse
laying around downstairs.

-Andy





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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Subject: Re: [parisc-linux] palinux 0.9.1
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Xref: news.gmane.org gmane.linux.ports.parisc:11548

Hello Thomas,

Nice LSM?

I will just start download now and burn it tommorrow and let you inform.

Thanks for advise,
     Joel


                                                                           =
                                  =20
                    Thomas                                                 =
                                  =20
                    Marteau              To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD                        =20
                    <marteaut@esi        cc:     rhirst@linuxcare.com@SMTP@=
EUROPAY,                          =20
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g@SMTP@EUROPAY,                   =20
                                         puffin@esiee.net@SMTP@EUROPAY     =
                                  =20
                    09-07-01             Subject:     Re: [parisc-linux] pa=
linux 0.9.1                       =20
                    07:24 PM                                               =
                                  =20
                                                                           =
                                  =20
                                                                           =
                                  =20



Hi all,

     I am back from LSM. So, I uploaded the 0.9.1 iso, I hope. I tried on
B132 and it went fine.
So, just download it and try.
If you experienced some troubles with the keyboard, just try to unplug
and plug it back... It should work.
Also, when it asks you some path, just hit return...

My apaologies again for the delay, Thomas
ESIEE Team





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From - Thu Nov 08 21:18:22 2018
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From: Gururaj Ananthateerta <gururaj@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Installation on B180L workstation.
Date: Mon, 09 Jul 2001 11:57:31 -0700
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Thanks a lot for responding.

Richard Hirst wrote:

> On Fri, Jul 06, 2001 at 04:09:30PM -0700, Gururaj Ananthateerta wrote:
> > I am trying to install on B180L.  I have an external CD ROM.
> >  Does installation supports this configuration. ? If not
> > how can i install?
>
> Should work, so far as I know.  Please can you give more information:
>
> What CD are you trying to install from? 0.9 ISO? 0.9.1 ISO?
> (0.9.1 ISO has some problems, I hope a fixed one will be posted
> soon).

0.9 ISO.

>
>
> Serial console or graphical console?

Serial Console.

>
>
> Does the system find the CDROM when you do a SEArch?

Yes, CD info is displayed during search. The CD ROM is a Toshiba make.

>
>
> What happens when you try the install, exactly?

Well, when I try to boot through the CD, I get the following message.
"Boot Device not Ready
  Retrying boot device...'
I am kinda doubting the way I burned the CD. I will ckech this. It
shouldn't be
that case.

>
>
> Richard
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

Guru





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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] palinux 0.9.1
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Hi Joel,

	If you are interested in Debian One: go there
http://people.debian.org/~rb/lsm/
			http://www.niksula.cs.hut.fi/~ateras/travel/debian_conference/

	For the LSM itself, you have the lsm.abul.org

But from our point of view, it was interesting to see how Debianer(d)s
are thinking of Debian and all... Also, we encountered a very warmful
audience on Thrusday morning ;-) Soon the text will be online...

Regards to all, Thomas
ESIEE Team




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On Mon, Jul 09, 2001 at 11:57:31AM -0700, Gururaj Ananthateerta wrote:
> I am kinda doubting the way I burned the CD. I will ckech this. It
> shouldn't be
> that case.

It is an iso9660 CD, so you should be able to read it on other
systems, to check the CD itself looks ok.

Richard





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I checked it on another system.  The CD loks OK. I don't know what is the

problem.
Thanks
Guru

Richard Hirst wrote:

> On Mon, Jul 09, 2001 at 11:57:31AM -0700, Gururaj Ananthateerta wrote:
> > I am kinda doubting the way I burned the CD. I will ckech this. It
> > shouldn't be
> > that case.
>
> It is an iso9660 CD, so you should be able to read it on other
> systems, to check the CD itself looks ok.
>
> Richard





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From: "Pedot, Wolfgang" <wpedot@harris.com>
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Subject: [parisc-linux] Install on a 715/75 (wont boot)
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Xref: news.gmane.org gmane.linux.ports.parisc:11553

Hi,

I just dug out a 715/75 at work (64MB RAM, 2x1GB HD). Now I=B4ve =
cleaned it and
brought it to live I want to install Linux but the problem is neither =
0.9 nor
0.9.1 (downloaded yesterday) boots. I connected an external SCSI-CDRom =
(Toshiba
6401) and the 715 detects it and I can tell it to boot from this drive =
but I get
an IPL Checksum Error with 0.9 (tried with two CDs) and "Wrong IPL =
Magic" with
0.9.1. Both Images were downloaded and burned correctly as far as I can =
tell.
Now since this is my first experience with a PARISC-Machine I=B4m a =
little bit
helpless, any hints?

Wolfgang Pedot

PS: I=B4m also looking for some dokumentation for my machine since =
there is no
manual or anything available here...







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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] palinux 0.9.1
Date: Tue, 10 Jul 2001 12:28:35 +0200
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Cc: parisc-linux@lists.parisc-linux.org, puffin@esiee.net,
	rhirst@linuxcare.com
To: "Thomas Marteau <marteaut" <marteaut%esiee.fr%SMTP%EUROPAY@mastercard.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11554

Hi Thomas,

It would effectively be interesting LSM (Debian OpenBsd, HURD, ...)

Come back to last CD 0.9.1. The install works well on 712 and B180 (Nice)

Just to mention some details:
a common problen is the startup of dhcpclient (as I have not dhcp server, I
did not choose dhcp at install time and its statup disturb a little bit the
install) but nothing critical

a problem specific to the B180 (the idea comes from Richard Hirst): after
booting on the CD no answer from the keyboard?
workaround: at this moment (while the sysytem is runing) just un-plug,
re-plug the keyboard and it answer correctly (as Richard I suspect a
specific problem of initialisation of the keyboard?)

Thanks and congratulation for this nice job,
     Joel



                                                                           =
                                  =20
                    Thomas                                                 =
                                  =20
                    Marteau              To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD                        =20
                    <marteaut@esi        cc:     rhirst@linuxcare.com@SMTP@=
EUROPAY,                          =20
                    ee.fr>               parisc-linux@lists.parisc-linux.or=
g@SMTP@EUROPAY,                   =20
                                         puffin@esiee.net@SMTP@EUROPAY     =
                                  =20
                    09-07-01             Subject:     Re: [parisc-linux] pa=
linux 0.9.1                       =20
                    07:24 PM                                               =
                                  =20
                                                                           =
                                  =20
                                                                           =
                                  =20



Hi all,

     I am back from LSM. So, I uploaded the 0.9.1 iso, I hope. I tried on
B132 and it went fine.
So, just download it and try.
If you experienced some troubles with the keyboard, just try to unplug
and plug it back... It should work.
Also, when it asks you some path, just hit return...

My apaologies again for the delay, Thomas
ESIEE Team





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Xref: news.gmane.org gmane.linux.ports.parisc:11555

On Tue, Jul 10, 2001 at 08:26:45AM +0200, Joachim Kress wrote:
> Hi,
> 
> on my ISO-CD, i have a directory named "dist"
> and some Files named:
> 
> 
> 	- debian
> 	- iplboot
> 	- iso

iso.conf, I hope!

> 	- README
> 	- README-ISO
> 
> 
> the CD is bootable but the HP9000 / 712 Workstation
> cannot boot with this CD !
> 
> I hope this are enough informations for You !

What happens when you try to boot from the CD?  What messages
are displayed?


Richard




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Subject: Re: [parisc-linux] Install on a 715/75 (wont boot)
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Xref: news.gmane.org gmane.linux.ports.parisc:11556

On Tue, Jul 10, 2001 at 02:45:59AM -0400, Pedot, Wolfgang wrote:
> Hi,
> 
> I just dug out a 715/75 at work (64MB RAM, 2x1GB HD). Now Ive cleaned it and
> brought it to live I want to install Linux but the problem is neither 0.9 nor
> 0.9.1 (downloaded yesterday) boots. I connected an external SCSI-CDRom (Toshiba
> 6401) and the 715 detects it and I can tell it to boot from this drive but I get
> an IPL Checksum Error with 0.9 (tried with two CDs) and "Wrong IPL Magic" with
> 0.9.1. Both Images were downloaded and burned correctly as far as I can tell.
> Now since this is my first experience with a PARISC-Machine Im a little bit
> helpless, any hints?

For 0.9.1 it sounds like you picked up one of the broken versions
of the ISO.  A new image was posted yesterday, so if you downloaded
before that, please try again.

0.9 didn't work on 715/75 anyway, but I would not have expected your
particular error.

I have never booted my 715/75 from CD; I've always booted it from
the network.  The README on the CD should explain (briefly) how to
do that.

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] Re: Problem installing .9 iso image on C240
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To: Charles Boone <ccboone@yahoo.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11557

On Mon, Jul 09, 2001 at 09:05:36PM -0700, Charles Boone wrote:
> I got the .9.1 release, it only wants to boot the
> 32bit version.  so I  tried running the install both
> with compatibility and without.
....
....
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                 
>                          
> PSW: 00000000000011001111111100001110                 
>                          
> r0-3     00000000 10335810 101fc9ec ffffffff          
> r4-7     1fe02060 0000000e 00000000 10336010          
> r8-11    0000004e 0000004d 0004000e 102c0f14
> r12-15   00000000 ffffffff 000000fd f0100000     
> r16-19   10300580 f000020c f0000204 0000ff40     
> r20-23   1fe02060 0000ff40 101fc9b0 0000000e     
> r24-27   0000ff40 f2000064 c1b21ec0 1028a010     
> r28-31   1fe03aa0 000001c0 10300a00 1010d2c8
> sr0-3    00000000 000006e2 00000000 00000000
> sr4-7    00000000 00000000 00000000 00000000
>  					     
> IASQ: 00000000 00000000 IAOQ: 101fc2e8 101fc9ec
>  IIR: 081a025c    ISR: 9227ffc8  IOR: 00000064
>  ORIG_R28: 00000000

IAOQ = _gsc_readl + 8
called from dino_in32()
I guess it was dino_in32(0xc1b21ec0), which looks odd.

Don't know why it should fail like that in the middle of the
install.  Is it repeatable?


Richard






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Subject: Re: [parisc-linux] sti console problem
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To: Matthieu Le Corre <matthieu.lecorre@polytech.univ-nantes.fr>
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Xref: news.gmane.org gmane.linux.ports.parisc:11558

On Mon, Jul 09, 2001 at 04:09:02PM +0200, Matthieu Le Corre wrote:
> i got a 735 appollo series ,with 0.9 iso installed 
> i've installed sti kernel all work execpt that i get an 'unable to open 
> initial console " all right seems to be good
> don't undestand why it failed ,
> need help !!!

>From <http://mkhppa1.esiee.fr/list.html> it appears that STI console
has not been tested on 735.  Can you try a serial console install?

When you say "all work" do you mean the installer ran and let you
install the system?  At which point did you get "unable to open
initial console"?  During the initial boot from CD, during the
reboot in to the second stage install, or after that, when booting
in to the installed system?


Richard





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Is the Fast Wide controller on the 735 supported yet? I attempted to 
install .9 and it seemed to find a controller, and error out then it 
did not find any of my drives .. (I did have a CDROM and a 1GB drive 
on the narrow controller, but I have 10GB that I'd like to use also 
heh)

Andrew

> Original Message from Tue, 10 Jul 2001 14:37:49  0100:> 
> On Mon, Jul 09, 2001 at 04:09:02PM  0200, Matthieu Le Corre wrote:
> > i got a 735 appollo series ,with 0.9 iso installed 
> > i've installed sti kernel all work execpt that i get an 'unable 
to open 
> > initial console " all right seems to be good
> > don't undestand why it failed ,
> > need help !!!
> 
> From  it appears that STI console
> has not been tested on 735.  Can you try a serial console install?
> 
> When you say "all work" do you mean the installer ran and let you
> install the system?  At which point did you get "unable to open
> initial console"?  During the initial boot from CD, during the
> reboot in to the second stage install, or after that, when booting
> in to the installed system?
> 
> 
> Richard
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 
> 
> 

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From: Matthieu Le Corre <matthieu.lecorre@polytech.univ-nantes.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] sti console problem
Date: Tue, 10 Jul 2001 16:06:11 +0200
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in fact i've installed the 0.9 iso from the serial console
first and second stage are correct !
it boot correctly , but,
at the end of booting process ,
in sti console i get an "unable to open initial" console...
and then a login appears in serial console !
in fact all boot message appears un sti console execpt the boot prompt !
I have check inittab and /dev/tty* files , they seems ok ! i don't understand 



Le Mardi 10 Juillet 2001 15:37, vous avez crit :
> On Mon, Jul 09, 2001 at 04:09:02PM +0200, Matthieu Le Corre wrote:
> > i got a 735 appollo series ,with 0.9 iso installed
> > i've installed sti kernel all work execpt that i get an 'unable to open
> > initial console " all right seems to be good
> > don't undestand why it failed ,
> > need help !!!
>
> From <http://mkhppa1.esiee.fr/list.html> it appears that STI console
> has not been tested on 735.  Can you try a serial console install?
>
> When you say "all work" do you mean the installer ran and let you
> install the system?  At which point did you get "unable to open
> initial console"?  During the initial boot from CD, during the
> reboot in to the second stage install, or after that, when booting
> in to the installed system?
>
>
> Richard
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
_______________________________________

                      Matthieu Le Corre 
                    Service informatique
 Ecole Polytechnique de l'Universit de Nantes
     Matthieu.Lecorre@polytech.univ-nantes.fr
                        02.40.68.32.23
_______________________________________




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From: Matthieu Le Corre <matthieu.lecorre@polytech.univ-nantes.fr>
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Subject: Re: [parisc-linux] sti console problem
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----------  Message transmis  ----------
Subject: Re: [parisc-linux] sti console problem
Date: Tue, 10 Jul 2001 16:09:28 +0200
From: Matthieu Le Corre <matthieu.lecorre@polytech.univ-nantes.fr>
To: awyatt@intergate.cx


the Fast Wide controller on the 735 is noy suppoerted yet .... :(
i install .9 in a external narrow drive ...

Le Mardi 10 Juillet 2001 15:55, vous avez crit :
> Is the Fast Wide controller on the 735 supported yet? I attempted to
> install .9 and it seemed to find a controller, and error out then it
> did not find any of my drives .. (I did have a CDROM and a 1GB drive
> on the narrow controller, but I have 10GB that I'd like to use also
> heh)
>
> Andrew
>
> > Original Message from Tue, 10 Jul 2001 14:37:49  0100:>
> >
> > On Mon, Jul 09, 2001 at 04:09:02PM  0200, Matthieu Le Corre wrote:
> > > i got a 735 appollo series ,with 0.9 iso installed
> > > i've installed sti kernel all work execpt that i get an 'unable
>
> to open
>
> > > initial console " all right seems to be good
> > > don't undestand why it failed ,
> > > need help !!!
> >
> > From  it appears that STI console
> > has not been tested on 735.  Can you try a serial console install?
> >
> > When you say "all work" do you mean the installer ran and let you
> > install the system?  At which point did you get "unable to open
> > initial console"?  During the initial boot from CD, during the
> > reboot in to the second stage install, or after that, when booting
> > in to the installed system?
> >
> >
> > Richard
> >
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
>
> ___________________________________________________________________________
>____ This E-Mail was sent with MailMax/WEB.
> http://www.smartmax.com
>
>
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

--
_______________________________________

                      Matthieu Le Corre
                    Service informatique
 Ecole Polytechnique de l'Universit de Nantes
     Matthieu.Lecorre@polytech.univ-nantes.fr
                        02.40.68.32.23
_______________________________________

-------------------------------------------------------

-- 
_______________________________________

                      Matthieu Le Corre 
                    Service informatique
 Ecole Polytechnique de l'Universit de Nantes
     Matthieu.Lecorre@polytech.univ-nantes.fr
                        02.40.68.32.23
_______________________________________




From - Thu Nov 08 21:18:24 2018
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From: Charles Boone <ccboone@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Problem installing .9 iso image on C240
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Richard,

Yes, I can repeat it everytime I try to install, same
as with the .9 version.  I do have one question, why
would it not try to install the 64bit version? I was
pretty sure that a C240 is a 64bit system.

I am assuming that this is not a problem reading the
cdrom, I think that I can try another cdrom.

Thanks,
Charles
--- Richard Hirst <rhirst@linuxcare.com> wrote:
> On Mon, Jul 09, 2001 at 09:05:36PM -0700, Charles
> Boone wrote:
> > I got the .9.1 release, it only wants to boot the
> > 32bit version.  so I  tried running the install
> both
> > with compatibility and without.
> ....
> ....
> >      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI             
>    
> >                          
> > PSW: 00000000000011001111111100001110             
>    
> >                          
> > r0-3     00000000 10335810 101fc9ec ffffffff      
>    
> > r4-7     1fe02060 0000000e 00000000 10336010      
>    
> > r8-11    0000004e 0000004d 0004000e 102c0f14
> > r12-15   00000000 ffffffff 000000fd f0100000     
> > r16-19   10300580 f000020c f0000204 0000ff40     
> > r20-23   1fe02060 0000ff40 101fc9b0 0000000e     
> > r24-27   0000ff40 f2000064 c1b21ec0 1028a010     
> > r28-31   1fe03aa0 000001c0 10300a00 1010d2c8
> > sr0-3    00000000 000006e2 00000000 00000000
> > sr4-7    00000000 00000000 00000000 00000000
> >  					     
> > IASQ: 00000000 00000000 IAOQ: 101fc2e8 101fc9ec
> >  IIR: 081a025c    ISR: 9227ffc8  IOR: 00000064
> >  ORIG_R28: 00000000
> 
> IAOQ = _gsc_readl + 8
> called from dino_in32()
> I guess it was dino_in32(0xc1b21ec0), which looks
> odd.
> 
> Don't know why it should fail like that in the
> middle of the
> install.  Is it repeatable?
> 
> 
> Richard
> 
> 


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On Tue, Jul 10, 2001 at 08:55:42AM -0500, awyatt@intergate.cx wrote:
> Is the Fast Wide controller on the 735 supported yet? I attempted to 

No, sorry

Richard





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Subject: Re: [parisc-linux] sti console problem
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On Tue, Jul 10, 2001 at 04:06:11PM +0200, Matthieu Le Corre wrote:
> in fact i've installed the 0.9 iso from the serial console
> first and second stage are correct !
> it boot correctly , but,
> at the end of booting process ,
> in sti console i get an "unable to open initial" console...
> and then a login appears in serial console !
> in fact all boot message appears un sti console execpt the boot prompt !
> I have check inittab and /dev/tty* files , they seems ok ! i don't understand 

For 0.9 we had different ISOs for 32 bit STI console and 32 bit
serial console.  It sounds as though you might have booted
the STI ISO, but used a serial console.  You get the login prompt
on the serial console, because that is where inittab starts a
getty.  Sounds like kernel printk output is displayed on the STI
console, sugests you are using the STI kernel.  Not sure about
this though...  Check the kernel boot params; do you have
console=tty0 or console=ttyS0?

You can try the 0.9.1 CD from http://mkhppa1.esiee.fr which should
auto-detect which console you used and route messages appropriately.


Richard
 




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] Re: Problem installing .9 iso image on C240
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On Tue, Jul 10, 2001 at 07:23:53AM -0700, Charles Boone wrote:
> Richard,
> 
> Yes, I can repeat it everytime I try to install, same
> as with the .9 version.  I do have one question, why
> would it not try to install the 64bit version? I was
> pretty sure that a C240 is a 64bit system.

I think C240 will run 32 or 64 bit kernels, but 64 bit kernel isn't
working on it yet.

> I am assuming that this is not a problem reading the
> cdrom, I think that I can try another cdrom.

I agree, it doesn't sound like a corrupt CD to me.  More likely
some kernel problem.  I'll try another install on my c360, but it
worked last time I tried.

Richard





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From: Paul Bame <bame@fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] CVS rumors
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I've seen/heard some rumors which I'd like to clarify so we can make
good decisions rather than automatically assuming we need to drop to
assembly language because CVS is totally broken.

Rumors:
    1) date-based CVS checkout is hosed
    2) vendor branches are broken
    3) safe-cvsimport posts all changes to the trunk/head immediately

		date-based CVS checkout is hosed
		--------------------------------

Date-based CVS checkout *of the main branch* is indeed broken in one
(frequent) case and I filed it upstream and have heard nothing.  The test
case I filed has nothing to do with branches, vendor branches, safe-cvsimport,
client/server, nor even 'cvs import'.

This is a problem for us because we should be able to go back
to an older linux tree with this command:

	cvs up -D"some-date" -rHEAD

Currently this causes all the files which came from the initial linux
source import and which have never been changed.... to DISAPPEAR!  How
handy!  One work around is to add a gratuitous 1.2 revision to all those
files whose date is the same as the 1.1 revision -- most easily done by
hacking the RCS files.

BTW the following is ambiguous and probably shouldn't be allowed by CVS
if you have any branches:

	cvs up -D"some-date"

That grabs the files as of "some-date" from whatever arbitrary branch
they happen to be on -- thus you get some mixture of all the branches!

		    vendor branches are broken
		    --------------------------

Vendor branches are a special use of normal branches, and
*according to the CVS design* neither are "broken".  However the way
they are managed, mostly with 'cvs import', causes horrid problems
with certain use models.  The use model which works is that every time
you import from upstream, you immediately merge the upstream changes.
This is because the trunk/head is frequently BROKEN after 'cvs import'
so you *must* merge :-)  Here's why:

If you haven't changed a file on the trunk, and it changes upstream,
cvs import makes that change visible on the trunk immediately.  So for
example let's say you've modified a C file which implements an interface
defined in a header file.  You haven't modified the header file.  The
upstream folks modified the header file (and probably the C file too).
After cvs import your *trunk* has the new header file.  Your compile
will now probably fail.  Worse, this extends to files which were added
or removed upstream -- so the header could *disappear* after the import.
You can make up your own scenarios.

This problem is caused by 'cvs import' and has nothing to do with
CVS branches per se.

The way to cause REALLY BIG problems with vendor branches is to use them
for some upstream updates, but merge others by hand on to the trunk.  This
cuts the CVS design off at the knees!  We did this in our linux tree way
back and the number of problems is going down but isn't gone yet.

    safe-cvsimport posts all changes to the trunk/head immediately
    --------------------------------------------------------------


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Original-X-From: the source,
http: //puffin.external.hp.com/cvs/build-tools/safe-cvsimport:
Xref: news.gmane.org gmane.linux.ports.parisc:11567

    # safe-cvsimport assumes changes in newly-imported versions should *never*
    # be visible on the main trunk until explicitly placed there, usually by
    # a merge (cvs update -jx -jy).

Maybe someday I'll re-name it 'isolated-cvsimport'.  FYI in some cases
it's not handling upstream-removed files correctly.  No idea why this
changed or when I'll get interested enough to fix it.  For now I'll be
happy to consult and/or fix problems which result from safe-cvsimport.

	-P




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From: Matthieu Le Corre <matthieu.lecorre@polytech.univ-nantes.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] sti console problem
Date: Tue, 10 Jul 2001 17:28:34 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:11568

Le Mardi 10 Juillet 2001 16:45, vous avez crit :
> On Tue, Jul 10, 2001 at 04:06:11PM +0200, Matthieu Le Corre wrote:
> > in fact i've installed the 0.9 iso from the serial console
> > first and second stage are correct !
> > it boot correctly , but,
> > at the end of booting process ,
> > in sti console i get an "unable to open initial" console...
> > and then a login appears in serial console !
> > in fact all boot message appears un sti console execpt the boot prompt !
> > I have check inittab and /dev/tty* files , they seems ok ! i don't
> > understand
>
> For 0.9 we had different ISOs for 32 bit STI console and 32 bit
> serial console.  It sounds as though you might have booted
> the STI ISO, but used a serial console.  You get the login prompt
> on the serial console, because that is where inittab starts a
> getty.  Sounds like kernel printk output is displayed on the STI
> console, sugests you are using the STI kernel.  Not sure about
> this though...  Check the kernel boot params; do you have
> console=tty0 or console=ttyS0?

i've install FROM serial iso BUT i've installed the sti kernel 
and i've paramater console=tty0 ;( 
i've made both serial and sti start from inittab ....
the sti console seem to work but the only think is i don't get login prompt
on sti.
but when i shutdown system message appears on sti console !

i've try 0.9.1 but it failed after "branching kernel" despite a good md5sum 
... 



> You can try the 0.9.1 CD from http://mkhppa1.esiee.fr which should
> auto-detect which console you used and route messages appropriately.
>
>
> Richard
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
_______________________________________

                      Matthieu Le Corre 
                    Service informatique
 Ecole Polytechnique de l'Universit de Nantes
     Matthieu.Lecorre@polytech.univ-nantes.fr
                        02.40.68.32.23
_______________________________________




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Xref: news.gmane.org gmane.linux.ports.parisc:11569

On Tue, Jul 10, 2001 at 09:08:26AM -0600, Paul Bame wrote:
> This is a problem for us because we should be able to go back
> to an older linux tree with this command:
> 
> 	cvs up -D"some-date" -rHEAD

The manpage doesn't indicate this is a valid use; indeed the wording
in some cases indicates that -D and -r are exclusive!

> 	cvs up -D"some-date"
> 
> That grabs the files as of "some-date" from whatever arbitrary branch
> they happen to be on -- thus you get some mixture of all the branches!

Yes, I noticed that.  But we have a real problem now, and I don't know how
to solve it.  Lamont wanted to check out version -pa30 -- how can he do that?

> Vendor branches are a special use of normal branches, and
> *according to the CVS design* neither are "broken".  However the way
> they are managed, mostly with 'cvs import', causes horrid problems
> with certain use models. 

Right, they're broken by design :-)

> This problem is caused by 'cvs import' and has nothing to do with
> CVS branches per se.
> 
> The way to cause REALLY BIG problems with vendor branches is to use them
> for some upstream updates, but merge others by hand on to the trunk.  This
> cuts the CVS design off at the knees!  We did this in our linux tree way
> back and the number of problems is going down but isn't gone yet.

I don't understand why we're using vendor branches at all though.  When
mang was doing CVS God duties, he imported Linus' stuff on an ordinary
branch.  What is the advantage of using vendor branches over ordinary ones?

> For now I'll be
> happy to consult and/or fix problems which result from safe-cvsimport.

No offence, but every time we've done a new import, we've discovered new
and excitingly different problems which have taken some time to be fixed.
I'm extremely nervous about using it while you're gone.

-- 
Revolutions do not require corporate support.




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= > 	cvs up -D"some-date" -rHEAD
= 
= The manpage doesn't indicate this is a valid use; indeed the wording
= in some cases indicates that -D and -r are exclusive!

yeah go figure :-(  semantically though, a date-based checkout must
add a branch for disambiguation, and except in this (frequent for us)
case it works.

= > 	cvs up -D"some-date"
= > 
= > That grabs the files as of "some-date" from whatever arbitrary branch
= > they happen to be on -- thus you get some mixture of all the branches!
= 
= Yes, I noticed that.  But we have a real problem now, and I don't know how
= to solve it.  Lamont wanted to check out version -pa30 -- how can he do that?

CM best practices usually involve explicitly tagging any release one
hopes to reproduce in the future and we could start doing that (I recommend
it).  For now either we apply the aforementioned workaround so we can
do untagged date-based checkouts, or I can come up with a procedure for
grabbing a suitable set of bits.

= > This problem is caused by 'cvs import' and has nothing to do with
= > CVS branches per se.
= > 
= > The way to cause REALLY BIG problems with vendor branches is to use them
= > for some upstream updates, but merge others by hand on to the trunk.  This
= > cuts the CVS design off at the knees!  We did this in our linux tree way
= > back and the number of problems is going down but isn't gone yet.
= 
= I don't understand why we're using vendor branches at all though.  When
= mang was doing CVS God duties, he imported Linus' stuff on an ordinary
= branch.  What is the advantage of using vendor branches over ordinary ones?

Vendor branches are both a concept and an implementation.  The
implementation sucks but the concept -- keeping clean upstream releases
on a separate branch -- to me is a good one and is one of the things
CVS does quite well.

safe-cvsimport essentially doesn't use the vendor branch *implementation*
(aka, how 'cvs import' would do it) but it does use the vendor branch
*concept*.  So safe-cvsimport is attempting to automate what mang did
by hand.

As it happens, there were corner cases which 'cvs import'
actually handled correctly which doing the same thing by hand on a branch
handled incorrectly, and that's the main difference between maintaining
an upstream vendor branch "by hand", and using safe-cvsimport.  I'm
considering rewriting safe-cvsimport to avoid 'cvs import' and live
with the unlikely corner case.

= > For now I'll be
= > happy to consult and/or fix problems which result from safe-cvsimport.
= 
= No offence, but every time we've done a new import, we've discovered new
= and excitingly different problems which have taken some time to be fixed.

So every time you've been aware of an import it has been problematic.  Maybe
you forgot a linux import *and merge* which I managed in a few hours?
I think perhaps there was a very quick glibc update too.  Maybe
you are unaware of the many times more imports I've done in other places
which are usually 100% successful?

When there are problems they require the same sorts of skills and repairs
as would "by hand" imports on the branch, though
usually I take a bit longer because I want to understand and fix the
problem rather than merely fixing the symptom.  I suspect the time spent
fixing safe-cvsimport and archive confusions is not "extra", but merely
seems/looks different partly because of the expectation that safe-cvsimport
*should* do all the right stuff automatically in a few minutes, in contrast
to the expectation that doing things by hand on a branch is a considerably
longer and more arduous task.

= I'm extremely nervous about using it while you're gone.

In the linux tree I echo your concern and there's really no way to be
rid of the vestiges of upstream imports which came into the trunk unless
we reinitialize our archive.  That plus the current brokenness of not
removing files which were removed upstream makes me think that
unless I do future imports, they might better be done "by
hand" on the "linus" branch, which I call a vendor branch though it
is not a cvs-style-broken-vendor-branch any longer.

	-P




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Subject: [parisc-linux] install problems on the 735/99
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Well so far we've gotten the installer to boot using the serial console. =
The problem lies in installing the base system. It will download and =
extract the files needed then it hangs during installation. Anyone =
encounter this?=20

I'm currently downloading the 0.91 release. WIll this solve that =
problem?

------=_NextPart_000_0046_01C1094A.A1E6C550
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	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2919.6307" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>
<DIV><FONT face=3DArial size=3D2>Well so far we've gotten the installer =
to boot=20
using the serial console. The problem lies in installing the base =
system. It=20
will download and extract the files needed then it hangs during =
installation.=20
Anyone encounter this? </FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>
<DIV>I'm currently downloading the 0.91 release. WIll this solve that=20
problem?</DIV></DIV></FONT></DIV></BODY></HTML>

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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Re: Problem installing .9 iso image on C240
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Richard Hirst wrote:
> IAOQ = _gsc_readl + 8
> called from dino_in32()
> I guess it was dino_in32(0xc1b21ec0), which looks odd.

It's definitely wrong. dino_in32() pokes dino to generate IO Port
transactions and Dino lives in 0xF... address range. This suggests the
pci_dev->sys_data is garbage (perhaps not initialized?) or points to garbage.
Perhaps for Dino's built-in PS/2 or RS232 port?

Sorry, I didn't follow this thread earlier. Does console output hint
which PCI device was involved (if any)?

> Don't know why it should fail like that in the middle of the
> install.  Is it repeatable?

If it's a problem with devices on-board Dino, I'd expect the problem to
be reproducible but with different symptoms depending on what's in pci_dev.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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   of "Tue, 10 Jul 2001 07:23:53 PDT." <20010710142353.5757.qmail@web11207.mail.yahoo.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:11573

Charles Boone wrote:
...
> I do have one question, why
> would it not try to install the 64bit version? I was
> pretty sure that a C240 is a 64bit system.

PDC on the C240 (and similar C-models of that generation) only
support PDC calls in "narrow" (ie 32-bit) mode. Sounds like the decision
to install 32 vs 64-bit depends on the PDC capabilities bit.
Can anyone offhand confirm/deny?

BTW, though the C240 has a PA2.0 CPU (ergo 64-bit capable), I'm not sure
rbrad has been able to resolve all the issues when trying to run 64-bit
kernels on his C200. He did resolve many of them - including support
for 32-bit PDC calls from 64-bit kernels.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Rafael Herrera <raffo@neuronet.pitt.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 0.9.1 installation failed with and ext2-fs error
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Richard Hirst wrote:
> 
> On Thu, Jul 05, 2001 at 12:28:44PM -0400, Rafael Herrera wrote:
> > While installing the latest 0.9.1 on a 715/75 machine over a serial
> > line, the installation halted with this error message:
> >
> >  Extracting
> >  /var/cache/apt/archives/tar_1.13.19-1_hppa.deb...          EXT2-fs
> > error (device sd(8,3)): ext2_write_inode: unable t9
> >
> > it looks truncated. I can't provide more error messages. Are there other
> > virtual consoles under the installed? if so, how do you switch to them?
> > I'm using minicom on an X terminal.
> 
> Try again, and when you get to the point of installing base, scroll
> down the menu to 'execute a shell'.  Then mount the CD, something
> like
> 
> mkdir /tmp/cd
> mount /dev/scd0 /tmp/cd
> 
> (may already be mounted under /instmnt, do 'mount' to check)
> 
> Then run debootstrap manually:
> 
> debootstrap sid /target file:/tmp/cd

This one completed without errors, I continued the installation and
booted from the newly installed disk. Unfortunately, the file /etc/fstab
was not created and the boot failed and apparently tha machine was
halted, because the minicom indicator showed 'offline'.

In any case, I got the new palinux-0.9.2.iso image. This one booted and
I proceeded to install. I got other errors, which I'll post next.

Rafael




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From: Rafael Herrera <raffo@neuronet.pitt.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] palinux-0.9.2.iso installs on 715/75, crash fallows.
Date: Wed, 11 Jul 2001 02:22:17 -0400
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After successfully installing the base system and booting 
from disk the system started to generate these messages 
intermittently:

ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16

After the first boot, the program 'base-config' was started, 
after answering a few questions, the program 'tasksel' was 
executed. My selections resulted in downloads of about 100 
packages (getting the messages above once i a while). Towards 
the end I got an scsi error:

scsi0: Serious error, sstat0 = 04
scsi0: Chip register contents:
 (script[0] at virt 10050000, bus 50000)
 00  sien:  af  sdid:  40  scntl1:20  scntl0:d4
 04  socl:  06  sodl:  67  sxfer: 00  scid:  80
 08  sbcl:  00  sbdl:  00  sidl:  00  sfbr:  00
 0C  sstat2:0e  sstat1:20  sstat0:00  dstat: 00
 10
 14  ctest3:df  ctest2:31  ctest1:03  ctest0:00
 18  ctest7:00  ctest6:28  ctest5:00  ctest4:00
 1C  temp:  00000000
 20              ctest8:ff  istat: 06  dfifo: 04
 24  dbc:   0e000006  dnad:  00056cde  dsp:   00056038
 30  dsps:  00056cde
 34  dmode: 80
 38  dcntl: 80  dwt:   00  dien:  1d
 3C
scsi0: Unexpected stacked interrupt, istat 06, sstat0 08, dstat 00
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00056038 (script[0x180e]), dsps = 00056cde, target = 0
scsi0: Failing command for ID6
scsi0: Unable to send Bus Device Reset for target 6
scsi0: Unable to do SCSI bus reset
sscsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
SCSI disk error : host 0 channel 0 id 6 lun 0 return code = 2
 I/O error: dev 08:03, sector 1456912
 I/O error: dev 08:03, sector 1456920
 I/O error: dev 08:03, sector 1457160
 I/O error: dev 08:03, sector 1457408
 I/O error: dev 08:03, sector 1457656
 I/O error: dev 08:03, sector 1457904
 I/O error: dev 08:03, sector 1458152
 I/O error: dev 08:03, sector 1458400
 I/O error: dev 08:03, sector 1458648
 I/O error: dev 08:03, sector 1458896
 I/O error: dev 08:03, sector 1459144

At this point the machine crashed, I saved the ouput of sysrq tm and p, if 
anyone is interested.

--
     Rafael




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From: Matthieu Le Corre <matthieu.lecorre@polytech.univ-nantes.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] install problems on the 735/99
Date: Wed, 11 Jul 2001 08:41:52 +0200
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Igot the probleme once , but no more ! 
But try again it'll pass ( i hope for you ...)
if you get installedc from .9.1 tell me because for my 735/99 it seems not to 
work ...

Le Mardi 10 Juillet 2001 20:14, vous avez crit :
> Well so far we've gotten the installer to boot using the serial console.
> The problem lies in installing the base system. It will download and
> extract the files needed then it hangs during installation. Anyone
> encounter this?
>
> I'm currently downloading the 0.91 release. WIll this solve that problem?

----------------------------------------
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-- 
_______________________________________

                      Matthieu Le Corre 
                    Service informatique
 Ecole Polytechnique de l'Universit de Nantes
     Matthieu.Lecorre@polytech.univ-nantes.fr
                        02.40.68.32.23
_______________________________________




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] install problems on the 735/99
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On Tue, Jul 10, 2001 at 02:14:29PM -0400, rpengelly wrote:
> Well so far we've gotten the installer to boot using the serial console. The problem lies in installing the base system. It will download and extract the files needed then it hangs during installation. Anyone encounter this? 

735 uses a PA7100, PCX-T cpu, so I'd expect 0.9 to have problems.

> I'm currently downloading the 0.91 release. WIll this solve that problem?

Yes, it should do.

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Re: Problem installing .9 iso image on C240
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On Tue, Jul 10, 2001 at 11:45:15PM -0600, Grant Grundler wrote:
> Charles Boone wrote:
> ...
> > I do have one question, why
> > would it not try to install the 64bit version? I was
> > pretty sure that a C240 is a 64bit system.
> 
> PDC on the C240 (and similar C-models of that generation) only
> support PDC calls in "narrow" (ie 32-bit) mode. Sounds like the decision
> to install 32 vs 64-bit depends on the PDC capabilities bit.
> Can anyone offhand confirm/deny?

Hmm, our installer installs either a 32 bit kernel or a 64 bit one
which does wide PDC calls.  So, I guess we will always install a
32 bit kernel on Cxx.  Installing a 64 bit kernel with narrow PDC
calls later would be an option (once it works).  Do we leave building
that kernel as an exercise for the user, or or do we have one packaged
in the archive?

Richard





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Subject: Re: [parisc-linux] Re: Problem installing .9 iso image on C240
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On Tue, Jul 10, 2001 at 11:36:25PM -0600, Grant Grundler wrote:
> Richard Hirst wrote:
> > IAOQ = _gsc_readl + 8
> > called from dino_in32()
> > I guess it was dino_in32(0xc1b21ec0), which looks odd.
> 
> It's definitely wrong. dino_in32() pokes dino to generate IO Port
> transactions and Dino lives in 0xF... address range. This suggests the
> pci_dev->sys_data is garbage (perhaps not initialized?) or points to garbage.
> Perhaps for Dino's built-in PS/2 or RS232 port?
> 
> Sorry, I didn't follow this thread earlier. Does console output hint
> which PCI device was involved (if any)?

Not obviously, and it failed in the middle of the install, so presumably
whatever device was involved had been accessed successfully earlier.

Richard





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On Wed, Jul 11, 2001 at 10:44:49AM +0200, Joachim Kress wrote:
> 
> 	the Workstation boot and then will stop
> 	with "BOOT_ADMIN"
> 
> 	first step:
> 	then i boot with "boot scsi.1.0" (CDROM Address)
> 	the Workstation is booting and falling back to
> 	"BOOT_ADMIN"

Hmm, ok.  I was hoping it might say something like "ipl checksum error",
or "bad lif magic".

It might be a hardware probem with the CDROM, cable, or terminators,
I suppose.  Can you try to boot over the network from a bootp server?
The README on the CD should help.

Richard





From - Thu Nov 08 21:18:25 2018
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From: "Pedot, Wolfgang" <wpedot@harris.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Install on a 715/75 (wont boot)
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> -----Urspr=FCngliche Nachricht-----
> Von:	Richard Hirst [SMTP:rhirst@linuxcare.com]
> Gesendet am:	Dienstag, 10. Juli 2001 15:10
> An:	Pedot, Wolfgang
> Cc:	parisc-linux@lists.parisc-linux.org
> Betreff:	Re: [parisc-linux] Install on a 715/75 (wont boot)
>=20
> On Tue, Jul 10, 2001 at 02:45:59AM -0400, Pedot, Wolfgang wrote:
> > Hi,
> >=20
> > I just dug out a 715/75 at work (64MB RAM, 2x1GB HD). Now I=B4ve =
cleaned it
> and
> > brought it to live I want to install Linux but the problem is =
neither 0.9
> nor
> > 0.9.1 (downloaded yesterday) boots. I connected an external =
SCSI-CDRom
> (Toshiba
> > 6401) and the 715 detects it and I can tell it to boot from this =
drive but I
> get
> > an IPL Checksum Error with 0.9 (tried with two CDs) and "Wrong IPL =
Magic"
> with
> > 0.9.1. Both Images were downloaded and burned correctly as far as I =
can
> tell.
> > Now since this is my first experience with a PARISC-Machine I=B4m a =
little bit
> > helpless, any hints?
>=20
> For 0.9.1 it sounds like you picked up one of the broken versions
> of the ISO.  A new image was posted yesterday, so if you downloaded
> before that, please try again.
>=20
> Ok, i downloaded the new one and it works better but still no =
installer
> because my machine freezes at "branching to kernel at <addr>". Heres =
the
> output:
>=20
> Trying scsi.4.0
> Boot path initialized.
> Attemption to load IPL.
>=20
>=20
> Hard bootet.
> palo ipl 0.92 root@spqr Mon Jun 25 23:03:13 CEST 2001
> 0/vmlinux32 2853588 bytes @ 0x6ad6800
> 0/vmlinux64 3585851 bytes @ 0x6d8f800
> 0/ramdisk 1991209 bytes @ 0x70fb000
>=20
> Command line: 'root=3D/dev/ram console=3Dtty0 sti=3D0 =
sti_font=3DVGA8x16 TERM=3Dlinux'
>=20
> Kernel: partition 0 file /vmlinux
> Ramdisk: partition 0 file /ramdisk
> Warning: kernel name doesn=B4t end with 32 or 64... Guessing =
Annoyance: Firmware
> does not support PDC_MODEL_CAPABILITIES call
> 32
> ELF32 executable
> Entry 00100000 first 00100000 n 4
> Segment 0 load 00100000 size 1606948 mediaptr 0x1000
> Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
> Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
> Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
> Loading ramdisk 1991209 bytes @ 03e09000...
> branching to kernel entry point 0x00100000
>=20
> 0.9 didn't work on 715/75 anyway, but I would not have expected your
> particular error.
>=20
> I have never booted my 715/75 from CD; I've always booted it from
> the network.  The README on the CD should explain (briefly) how to
> do that.
>=20
> =20
> Well I tried to boot using bootp but it seems the 715 and my =
bootp-Server
> don=B4t understand each other. I have a running bootpd but it wont =
get anything
> from the 715 because it doesnt send UDP-Pakets but LLC-Pakets =
directly to the
> given MAC. Since I=B4m new to Parisc-Machine I=B4m maybe doing =
something wrong, I
> press ESC at bootup and enter "a" to get to the Boot-Admin-Menu, then =
I say
> "boot lan.<mac_of_bootp_server>" and I see that there are some =
LLC-Pakets
> coming to the Bootp-Server but there are no responses....
>=20
> mfG
> Wolfgang Pedot
>=20




From - Thu Nov 08 21:18:25 2018
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From: "Pedot, Wolfgang" <wpedot@harris.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Install on a 715/75 (wont boot)
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Xref: news.gmane.org gmane.linux.ports.parisc:11582

Sorry, the last mail looked a little strange, here is the correct =
version:


	On Tue, Jul 10, 2001 at 02:45:59AM -0400, Pedot, Wolfgang wrote:
	> Hi,
	>=20
	> I just dug out a 715/75 at work (64MB RAM, 2x1GB HD). Now I=B4ve =
cleaned
it and
	> brought it to live I want to install Linux but the problem is =
neither
0.9 nor
	> 0.9.1 (downloaded yesterday) boots. I connected an external =
SCSI-CDRom
(Toshiba
	> 6401) and the 715 detects it and I can tell it to boot from this =
drive
but I get
	> an IPL Checksum Error with 0.9 (tried with two CDs) and "Wrong IPL
Magic" with
	> 0.9.1. Both Images were downloaded and burned correctly as far as I
can tell.
	> Now since this is my first experience with a PARISC-Machine I=B4m a
little bit
	> helpless, any hints?

	For 0.9.1 it sounds like you picked up one of the broken versions
	of the ISO.  A new image was posted yesterday, so if you downloaded
	before that, please try again.

Ok, i downloaded the new one and it works better but still no installer =
because
my machine freezes at "branching to kernel at <addr>". Heres the =
output:

Trying scsi.4.0
Boot path initialized.
Attemption to load IPL.


Hard bootet.
palo ipl 0.92 root@spqr Mon Jun 25 23:03:13 CEST 2001
0/vmlinux32 2853588 bytes @ 0x6ad6800
0/vmlinux64 3585851 bytes @ 0x6d8f800
0/ramdisk 1991209 bytes @ 0x70fb000

Command line: 'root=3D/dev/ram console=3Dtty0 sti=3D0 =
sti_font=3DVGA8x16 TERM=3Dlinux'

Kernel: partition 0 file /vmlinux
Ramdisk: partition 0 file /ramdisk
Warning: kernel name doesn=B4t end with 32 or 64... Guessing Annoyance: =
Firmware
does not support PDC_MODEL_CAPABILITIES call
32
ELF32 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1606948 mediaptr 0x1000
Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
Loading ramdisk 1991209 bytes @ 03e09000...
branching to kernel entry point 0x00100000

	0.9 didn't work on 715/75 anyway, but I would not have expected your
	particular error.

	I have never booted my 715/75 from CD; I've always booted it from
	the network.  The README on the CD should explain (briefly) how to
	do that.

	=20
Well I tried to boot using bootp but it seems the 715 and my =
bootp-Server don=B4t
understand each other. I have a running bootpd but it wont get anything =
from the
715 because it doesnt send UDP-Pakets but LLC-Pakets directly to the =
given MAC.
Since I=B4m new to Parisc-Machine I=B4m maybe doing something wrong, I =
press ESC at
bootup and enter "a" to get to the Boot-Admin-Menu, then I say "boot
lan.<mac_of_bootp_server>" and I see that there are some LLC-Pakets =
coming to
the Bootp-Server but there are no responses....

mfG
Wolfgang Pedot







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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Install on a 715/75 (wont boot)
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Xref: news.gmane.org gmane.linux.ports.parisc:11583

On Wed, Jul 11, 2001 at 08:29:54AM -0400, Pedot, Wolfgang wrote:
> 	For 0.9.1 it sounds like you picked up one of the broken versions
> 	of the ISO.  A new image was posted yesterday, so if you downloaded
> 	before that, please try again.
> 
> Ok, i downloaded the new one and it works better but still no installer because
> my machine freezes at "branching to kernel at <addr>". Heres the output:
> 
> Trying scsi.4.0
> Boot path initialized.
> Attemption to load IPL.
> 
> 
> Hard bootet.
> palo ipl 0.92 root@spqr Mon Jun 25 23:03:13 CEST 2001
> 0/vmlinux32 2853588 bytes @ 0x6ad6800
> 0/vmlinux64 3585851 bytes @ 0x6d8f800
> 0/ramdisk 1991209 bytes @ 0x70fb000
> 
> Command line: 'root=/dev/ram console=tty0 sti=0 sti_font=VGA8x16 TERM=linux'

STI console doesn't work on 715/75, you must use a serial console.

> Kernel: partition 0 file /vmlinux
> Ramdisk: partition 0 file /ramdisk
> Warning: kernel name doesnt end with 32 or 64... Guessing Annoyance: Firmware
> does not support PDC_MODEL_CAPABILITIES call
> 32
> ELF32 executable
> Entry 00100000 first 00100000 n 4
> Segment 0 load 00100000 size 1606948 mediaptr 0x1000
> Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
> Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
> Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
> Loading ramdisk 1991209 bytes @ 03e09000...
> branching to kernel entry point 0x00100000
> 
> 	0.9 didn't work on 715/75 anyway, but I would not have expected your
> 	particular error.
> 
> 	I have never booted my 715/75 from CD; I've always booted it from
> 	the network.  The README on the CD should explain (briefly) how to
> 	do that.
> 
> 	 
> Well I tried to boot using bootp but it seems the 715 and my bootp-Server dont
> understand each other. I have a running bootpd but it wont get anything from the
> 715 because it doesnt send UDP-Pakets but LLC-Pakets directly to the given MAC.
> Since Im new to Parisc-Machine Im maybe doing something wrong, I press ESC at
> bootup and enter "a" to get to the Boot-Admin-Menu, then I say "boot
> lan.<mac_of_bootp_server>" and I see that there are some LLC-Pakets coming to
> the Bootp-Server but there are no responses....

715/75 uses rbootd, not bootp.  There is a copy in
ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/

Richard





From - Thu Nov 08 21:18:26 2018
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From: "Jari Eskelinen" <jari.eskelinen@enfo.fi>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 712/60, kernel 2.4.6 and keyboard.
Date: 11 Jul 2001 18:18:00 +0200
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Hi!

I have 712/60 machine and I have used 2.4.0-pa30 kernel with it with great success. Today I tried to compile 2.4.6-pa11 kernel (cross-compiling with my P800, it was horrible sloooooow with 721/60 :) and it almost succeeded. Everything else works, but PS/2 keyboard won't just work. Nothing comes to screen when typing. Logging from network works as usual. Kernel seems to recognise keyboard:

PS/2 keyboard controller at 0xf0108000 (irq 69) found, device attached.
Lasi PS/2 wait 3734
PS/2 psaux controller at 0xf0108100 (irq 69) found, device attached.

But it won't work. Mouse works fine, I can login if playing with mouse and gpm (cut r, paste, cut o, paste paste, cut t, paste, cut return, paste etc.) :D

Have anybody similiar experiences and most importantly, can anybody tell how to solve ths problem?

Thanks!

-- 
Jari Eskelinen




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From: Paul Bame <bame@fc.hp.com>
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Subject: Re: [parisc-linux] Re: Problem installing .9 iso image on C240
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= > > I do have one question, why
= > > would it not try to install the 64bit version? I was
= > > pretty sure that a C240 is a 64bit system.

As others said, it's a 64-bit-capable CPU with 32-bit-only firmware and
only 32-bit kernels work there right now.  I don't know that a 64-bit
kernel buys you much on a C240 -- am I mistaken?

= > PDC on the C240 (and similar C-models of that generation) only
= > support PDC calls in "narrow" (ie 32-bit) mode. Sounds like the decision
= > to install 32 vs 64-bit depends on the PDC capabilities bit.
= > Can anyone offhand confirm/deny?

Yes, palo asks the firmware whether one or both of 32&64-bit OSs will
run on the box.  Cxxx says 32 bit only.  If both are possible, palo
chooses 32-bit for now.

= a 64 bit kernel with narrow PDC
= calls later would be an option (once it works).  Do we leave building
= that kernel as an exercise for the user, or or do we have one packaged
= in the archive?

When it works we can add a config file for building a suitably flavored
debian kernel-image package.

	-P




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Xref: news.gmane.org gmane.linux.ports.parisc:11586

Thank you very much, my first shot with rbootd works great, I=B4m =
installing right
now :)

greetings
Wolfgang=20
> -----Original Message-----
> From:	Richard Hirst [SMTP:rhirst@linuxcare.com]
> Sent:	Wednesday, July 11, 2001 4:39 PM
> To:	Pedot, Wolfgang
> Cc:	'Parisc Linux Mailinglist'
> Subject:	Re: [parisc-linux] Install on a 715/75 (wont boot)
>=20
> On Wed, Jul 11, 2001 at 08:29:54AM -0400, Pedot, Wolfgang wrote:
> > 	For 0.9.1 it sounds like you picked up one of the broken versions
> > 	of the ISO.  A new image was posted yesterday, so if you =
downloaded
> > 	before that, please try again.
> >=20
> > Ok, i downloaded the new one and it works better but still no =
installer
> because
> > my machine freezes at "branching to kernel at <addr>". Heres the =
output:
> >=20
> > Trying scsi.4.0
> > Boot path initialized.
> > Attemption to load IPL.
> >=20
> >=20
> > Hard bootet.
> > palo ipl 0.92 root@spqr Mon Jun 25 23:03:13 CEST 2001
> > 0/vmlinux32 2853588 bytes @ 0x6ad6800
> > 0/vmlinux64 3585851 bytes @ 0x6d8f800
> > 0/ramdisk 1991209 bytes @ 0x70fb000
> >=20
> > Command line: 'root=3D/dev/ram console=3Dtty0 sti=3D0 =
sti_font=3DVGA8x16 TERM=3Dlinux'
>=20
> STI console doesn't work on 715/75, you must use a serial console.
>=20
> > Kernel: partition 0 file /vmlinux
> > Ramdisk: partition 0 file /ramdisk
> > Warning: kernel name doesn=B4t end with 32 or 64... Guessing =
Annoyance:
> Firmware
> > does not support PDC_MODEL_CAPABILITIES call
> > 32
> > ELF32 executable
> > Entry 00100000 first 00100000 n 4
> > Segment 0 load 00100000 size 1606948 mediaptr 0x1000
> > Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
> > Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
> > Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
> > Loading ramdisk 1991209 bytes @ 03e09000...
> > branching to kernel entry point 0x00100000
> >=20
> > 	0.9 didn't work on 715/75 anyway, but I would not have expected =
your
> > 	particular error.
> >=20
> > 	I have never booted my 715/75 from CD; I've always booted it from
> > 	the network.  The README on the CD should explain (briefly) how to
> > 	do that.
> >=20
> > 	=20
> > Well I tried to boot using bootp but it seems the 715 and my =
bootp-Server
> don=B4t
> > understand each other. I have a running bootpd but it wont get =
anything from
> the
> > 715 because it doesnt send UDP-Pakets but LLC-Pakets directly to =
the given
> MAC.
> > Since I=B4m new to Parisc-Machine I=B4m maybe doing something =
wrong, I press ESC
> at
> > bootup and enter "a" to get to the Boot-Admin-Menu, then I say =
"boot
> > lan.<mac_of_bootp_server>" and I see that there are some LLC-Pakets =
coming
> to
> > the Bootp-Server but there are no responses....
>=20
> 715/75 uses rbootd, not bootp.  There is a copy in
> ftp://puffin.external.hp.com/pub/parisc/binaries/tgz/
>=20
> Richard
>=20
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] 712/60, kernel 2.4.6 and keyboard.
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To: Jari Eskelinen <jari.eskelinen@enfo.fi>
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Xref: news.gmane.org gmane.linux.ports.parisc:11587

On Wed, Jul 11, 2001 at 06:18:00PM +0200, Jari Eskelinen wrote:
> Hi!
> 
> I have 712/60 machine and I have used 2.4.0-pa30 kernel with it with great success. Today I tried to compile 2.4.6-pa11 kernel (cross-compiling with my P800, it was horrible sloooooow with 721/60 :) and it almost succeeded. Everything else works, but PS/2 keyboard won't just work. Nothing comes to screen when typing. Logging from network works as usual. Kernel seems to recognise keyboard:
> 
> PS/2 keyboard controller at 0xf0108000 (irq 69) found, device attached.
> Lasi PS/2 wait 3734
> PS/2 psaux controller at 0xf0108100 (irq 69) found, device attached.
> 
> But it won't work. Mouse works fine, I can login if playing with mouse and gpm (cut r, paste, cut o, paste paste, cut t, paste, cut return, paste etc.) :D
> 
> Have anybody similiar experiences and most importantly, can anybody tell how to solve ths problem?

Known problem, try unplugging and replugging the keyboard, while the
system is running.  Works for some people.

Richard





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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] 712/60, kernel 2.4.6 and keyboard.
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Hi Jari,
> 
> Hi!
> 
> I have 712/60 machine and I have used 2.4.0-pa30 kernel with it with great success. Today I tried to compile 2.4.6-pa11 kernel (cross-compiling with my P800, it was horrible sloooooow with 721/60 :) and it almost succeeded. Everything else works, but PS/2 keyboard won't just work. Nothing comes to screen when typing. Logging from network works as usual. Kernel seems to recognise keyboard:
> 
> PS/2 keyboard controller at 0xf0108000 (irq 69) found, device attached.
> Lasi PS/2 wait 3734
> PS/2 psaux controller at 0xf0108100 (irq 69) found, device attached.
> 
For the moment, my conclusion is that gsc_ps2_kbd_ops are not
registered. That's why you should not have the leds working on your
keyboard too. If you want the keyboard working, you can add a little
hack but it is NOT the best solution.

In drivers/char/hp_psaux.c:
You have
switch (id) {
	case 0:	
	   	register_kbd_ops(&gsc_ps2_kbd_ops);
		break;
	case 1:
And, you can put this:
switch (id) {
	case 0:	
->		inited++;
	   	register_kbd_ops(&gsc_ps2_kbd_ops);
		break;
	case 1:

Agian, this is not a permanent solution, Thomas
ESIEE Team




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Subject: [parisc-linux] 0.92 install iso problems
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I've downloaded and burned the 0.92 install iso but I run into trouble =
while retreiving packages. It can't retrieve groff and then quits =
because of it. Any suggestions?

------=_NextPart_000_0029_01C10A1F.3305B300
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>I've downloaded and burned the 0.92 =
install iso but=20
I run into trouble while retreiving packages. It can't retrieve groff =
and then=20
quits because of it. Any suggestions?</FONT></DIV></BODY></HTML>

------=_NextPart_000_0029_01C10A1F.3305B300--





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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Re: Problem installing .9 iso image on C240
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To: Paul Bame <bame@fc.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11590

Paul Bame wrote:
> I don't know that a 64-bit kernel buys you much on a C240 -- am I mistaken?

I think not.

I thought about making the same comment since in general wide-mode
just runs 2-5% slower. But some apps could take advantage of the wider
words for substantial perf gains...but since we don't support 64-bit apps
(yet) and only a few isolated places in the kernel would benefit (eg
cksum'ing code), I don't see 64-bit kernel a "must have" for C240.

> = > PDC on the C240 (and similar C-models of that generation) only
> = > support PDC calls in "narrow" (ie 32-bit) mode. Sounds like the decision
> = > to install 32 vs 64-bit depends on the PDC capabilities bit.
> = > Can anyone offhand confirm/deny?
> 
> Yes, palo asks the firmware whether one or both of 32&64-bit OSs will
> run on the box.  Cxxx says 32 bit only.  If both are possible, palo
> chooses 32-bit for now.

Ok - thanks!
And I think that's fine in general. Someone with a specific
need for 64-bit ops can build/install a 64-bit kernel after the fact.
Someday we might have a real 64-bit userspace and it might be interesting
to get pickier about install support for PA2.0 CPU's.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Aaron Berg <Aaron.Berg@mnsu.edu>
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Subject: [parisc-linux] Crazy Beowulf stuff!
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Greetings all! I was reading a couple of posts about clustering. Well I
made a small 6 node +server x86 cluster over a year ago now. Works great
and now I am being donated 10 hp 9000 c220 4 c110 and 2 j2240. Now I
have read that the j2240 and 220 may not be quite working yet. For the
last two years I have been fiddling with getting RS/6000 43p 260 running
linux. so I know how time consuming it can be to get a computer running
linux. I would simply like to say I maybe getting active in this HP 9000
stuff very shortly. Time pending I would love to help make progress with
the pa-risk linux project. I may even be the 2nd person crazy enough to
build a beowulf cluster with them. ;-) 
Take care all and good luck on all your projects!
-Aaron
-- 
Aaron C. Berg Aaron.Berg@mnsu.edu
Minnesota State University, Mankato http://www.mnsu.edu
CS Department Systems Administrator http://csl.cs.mnsu.edu
Wissink Building 283
Phone: (507)389-5600 Fax: (507)389-6376

Have a great day!




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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] 0.92 install iso problems
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Quoth rpengelly:
> I've downloaded and burned the 0.92 install iso but I run into trouble
> while retreiving packages. It can't retrieve groff and then quits
> because of it. Any suggestions?

In what way can it not retrieve groff?  Simply 'file not found'?  Run
'apt-get update' and try again.  Or give a bit more information about
your problem.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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Xref: news.gmane.org gmane.linux.ports.parisc:11593

Richard Hirst wrote:
> Installing a 64 bit kernel with narrow PDC
> calls later would be an option (once it works).  Do we leave building
> that kernel as an exercise for the user, or or do we have one packaged
> in the archive?

I was under the impression the "CONFIG_PDC_NARROW" option would only
"activate" itself in one boxes that needed it. Ie it does grow the kernel
and AFAIK is really only useful for Cxxx models.
Ryan, do I have it right?

I am pretty sure K/D/R-class boxes have a different source base for PDC
which "properly" support wide-mode PDC calls.

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Paul Bame wrote:

>
> CM best practices usually involve explicitly tagging any release one
> hopes to reproduce in the future and we could start doing that (I recommend
> it).  For now either we apply the aforementioned workaround so we can
> do untagged date-based checkouts, or I can come up with a procedure for
> grabbing a suitable set of bits.


Tags are cheap.  Explicitly tagging at important moments is the way to 
go.  Relying on a date-based checkout is potentially less accurate, so 
IMO this shouldn't be the common practice.  There's no harm in adding a 
static tag, and you can always remove it or possibly fix it up if you 
get it wrong.


> = I don't understand why we're using vendor branches at all though.  When
> = mang was doing CVS God duties, he imported Linus' stuff on an ordinary
> = branch.  What is the advantage of using vendor branches over ordinary ones?
> 
> Vendor branches are both a concept and an implementation.  The
> implementation sucks but the concept -- keeping clean upstream releases
> on a separate branch -- to me is a good one and is one of the things
> CVS does quite well.
> 
> safe-cvsimport essentially doesn't use the vendor branch *implementation*
> (aka, how 'cvs import' would do it) but it does use the vendor branch
> *concept*.  So safe-cvsimport is attempting to automate what mang did
> by hand.


Writing an import script was one of those things I always meant to do in 
my copious spare time.  I'm glad to see that someone is actually doing 
the work :)  Where does the code for safe-cvsimport live?


> = > For now I'll be
> = > happy to consult and/or fix problems which result from safe-cvsimport.
> = 
> = No offence, but every time we've done a new import, we've discovered new
> = and excitingly different problems which have taken some time to be fixed.


All the more reason to roll the solutions found to these problems into a 
script.  Proper importing by hand is rather tedious and prone to 
operator error.  Also, any extra time spent fully understanding the 
problems and finding a robust solution will be regained over the 
following merges or if the cvs wrangler moves on to a different project 
-- hypothetically, of course ;)

> = I'm extremely nervous about using it while you're gone.
> 
> In the linux tree I echo your concern and there's really no way to be
> rid of the vestiges of upstream imports which came into the trunk unless
> we reinitialize our archive.  That plus the current brokenness of not
> removing files which were removed upstream makes me think that
> unless I do future imports, they might better be done "by
> hand" on the "linus" branch, which I call a vendor branch though it
> is not a cvs-style-broken-vendor-branch any longer.


I'd avoid using the term "vendor branch", since that already has a 
specific meaning to savvy CVS users (who will rightly criticize their 
use).  Calling it something like the "upstream branch" would avoid the 
overloaded meaning.  I haven't been following things enough to know what 
the issues related to "the vestiges of upstream imports" are.

	- Mike.









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On Wed, Jul 11, 2001 at 03:36:05PM -0400, rpengelly wrote:
> I've downloaded and burned the 0.92 install iso but I run into trouble while retreiving packages. It can't retrieve groff and then quits because of it. Any suggestions?

Hmm, shouldn't be looking for groff.  Looks for groff-base these days.
If, for example, you were netbooting a lifimage from an older CD, but
installing from a newer CD you would see that problem.

Richard





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We did boot from an older lifimage due to problems with the new lifimage on
the 0.92 install. For some reason it wouldn't netboot off the lifimage.

I'm currently downloading the 0.92 full iso to see if that yeilds any luck.

How exactly do you check the md5sums?

----- Original Message -----
From: "Richard Hirst" <rhirst@linuxcare.com>
To: "rpengelly" <rpengelly@ati.stlawrencec.on.ca>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Thursday, July 12, 2001 7:49 AM
Subject: Re: [parisc-linux] 0.92 install iso problems



> Hmm, shouldn't be looking for groff.  Looks for groff-base these days.
> If, for example, you were netbooting a lifimage from an older CD, but
> installing from a newer CD you would see that problem.
>
> Richard
>





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Subject: Re: [parisc-linux] 0.92 install iso problems
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Le Jeudi 12 Juillet 2001 14:25, vous avez crit :
> We did boot from an older lifimage due to problems with the new lifimage on
> the 0.92 install. For some reason it wouldn't netboot off the lifimage.
>
> I'm currently downloading the 0.92 full iso to see if that yeilds any luck.
>
> How exactly do you check the md5sums?

 juste do  "md5sum foo.iso.gz "


>
> ----- Original Message -----
> From: "Richard Hirst" <rhirst@linuxcare.com>
> To: "rpengelly" <rpengelly@ati.stlawrencec.on.ca>
> Cc: <parisc-linux@lists.parisc-linux.org>
> Sent: Thursday, July 12, 2001 7:49 AM
> Subject: Re: [parisc-linux] 0.92 install iso problems
>
> > Hmm, shouldn't be looking for groff.  Looks for groff-base these days.
> > If, for example, you were netbooting a lifimage from an older CD, but
> > installing from a newer CD you would see that problem.
> >
> > Richard
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
_________________________________________________
  
                    Matthieu Le Corre
                  Service informatique
   Ecole Polytechnique de l'Universit de Nantes
      Matthieu.Lecorre@polytech.univ-nantes.fr
                     02.40.68.32.23
__________________________________________________




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Xref: news.gmane.org gmane.linux.ports.parisc:11598

On Thu, Jul 12, 2001 at 08:25:31AM -0400, rpengelly wrote:
> We did boot from an older lifimage due to problems with the new lifimage on
> the 0.92 install. For some reason it wouldn't netboot off the lifimage.
> 
> I'm currently downloading the 0.92 full iso to see if that yeilds any luck.

0.9.2 and 0.9.2-install have the same lifimage on them.  Post more
details if it still wont netboot.

> How exactly do you check the md5sums?

Typical linux systems, at least, have a utility md5sum, so you just
enter "md5sum <filename>" at the shell prompt.  A web search for
md5sum.exe should help if you use certain other OSes.

Richard





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I've downloaded the 0.92 install. I ran the md5sum on it and it wasn't =
correct. I'm wondering if the problem is that I am downloading to a =
windows box and then transferring it to a linux box for netbooting? =
would this cause problems with the checksums?

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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>I've downloaded the 0.92 install. I ran =
the md5sum=20
on it and it wasn't correct. I'm wondering if the problem is that I am=20
downloading to a windows box and then transferring it to a linux box for =

netbooting? would this cause problems with the=20
checksums?</FONT></DIV></BODY></HTML>

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On Thu, Jul 12, 2001 at 08:57:40AM -0400, rpengelly wrote:
> I've downloaded the 0.92 install. I ran the md5sum on it and it wasn't correct. I'm wondering if the problem is that I am downloading to a windows box and then transferring it to a linux box for netbooting? would this cause problems with the checksums?

The md5sum is for the .gz file:

[root@beast current]# md5sum /mnt/parisc/palinux-0.9.2.iso.gz 
45b3f776f5e702b02a9e02cd10358c99  /mnt/parisc/palinux-0.9.2.iso.gz
[root@beast current]# md5sum /mnt/parisc/palinux-0.9.2-install.iso.gz 
a7819f5fc2f5418bcdcb1de3068baade  /mnt/parisc/palinux-0.9.2-install.iso.gz

As they are gzipped files, "gzip -tv <filename>" would also verify
that they downloaded correctly.  I have known some browsers 'helpfully'
uncompress .gz during download.  If you only have the uncompressed
versions the sums should be:

[root@beast current]# zcat /mnt/parisc/palinux-0.9.2.iso.gz | md5sum
b7f13d7175744e2d204a738f2ab32bc2  -
[root@beast current]# zcat /mnt/parisc/palinux-0.9.2-install.iso.gz | md5sum
c7e3f1312ea387a27b7ec3b278850ac0  -


Richard





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From: Chris Snow <chris@baldric.uwo.ca>
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Subject: Re: [parisc-linux] Crazy Beowulf stuff!
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On Wed, 11 Jul 2001, Aaron Berg wrote:

> Greetings all! I was reading a couple of posts about clustering. Well I
> made a small 6 node +server x86 cluster over a year ago now. Works great
> and now I am being donated 10 hp 9000 c220 4 c110 and 2 j2240. Now I
> have read that the j2240 and 220 may not be quite working yet. For the
> last two years I have been fiddling with getting RS/6000 43p 260 running
> linux. so I know how time consuming it can be to get a computer running
> linux. I would simply like to say I maybe getting active in this HP 9000
> stuff very shortly. Time pending I would love to help make progress with
> the pa-risk linux project. I may even be the 2nd person crazy enough to
> build a beowulf cluster with them. ;-)


Just to add,

We (the Baldric Project at UWO) have suceeded in running some MPI
applications under linux with our 715/33 and 715/50 machines (48 in all,
but not all set up yet).  Right now we are in the process of building some
tools to do automated node installation by booting a specific image off
the LAN.  Once we get everything set up, we will post a short how-to and a
copy of the relevant scripts on the website. At that time I'll send out
another email the let everyone know of our progress.

If you want to learn more about our project, check out the website:

http://www.baldric.uwo.ca/

Cheers,


     Chris

------------------------------
"Mmmm, free goo."
 - Homer Simpson





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From: Charles Boone <ccboone@yahoo.com>
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Subject: Re: [parisc-linux] Re: Problem installing .9 iso image on C240
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One piece of info that I did not include,  which I
thought might be relative to the ps/2 issue.  I am not
sure it is, but I do not have a keyboard or mouse
connected on the c240.  I was pretty sure that it
would not be a problem, since it would be just like
having a dumb terminal on it.


--- Richard Hirst <rhirst@linuxcare.com> wrote:
> On Tue, Jul 10, 2001 at 11:36:25PM -0600, Grant
> Grundler wrote:
> > Richard Hirst wrote:
> > > IAOQ = _gsc_readl + 8
> > > called from dino_in32()
> > > I guess it was dino_in32(0xc1b21ec0), which
> looks odd.
> > 
> > It's definitely wrong. dino_in32() pokes dino to
> generate IO Port
> > transactions and Dino lives in 0xF... address
> range. This suggests the
> > pci_dev->sys_data is garbage (perhaps not
> initialized?) or points to garbage.
> > Perhaps for Dino's built-in PS/2 or RS232 port?
> > 
> > Sorry, I didn't follow this thread earlier. Does
> console output hint
> > which PCI device was involved (if any)?
> 
> Not obviously, and it failed in the middle of the
> install, so presumably
> whatever device was involved had been accessed
> successfully earlier.
> 
> Richard
> 


__________________________________________________
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Xref: news.gmane.org gmane.linux.ports.parisc:11603

I downloaded the 0.92 full iso and its checksum did not match any of the
one's given. I'm wondering if it may be because I first have to download it
form esiee to a windows machine then transfer it via ftp to a linux box.

It still seems strange that the file downloads in .gz format but will not
unzip.

Would you be willing to help me out by sending the files by ftp to my linux
box? I don't know if you have a high speed connection or not?
Thanks again

Ray






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Subject: Re: [parisc-linux] Re: Problem installing .9 iso image on C240
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On Thu, Jul 12, 2001 at 07:42:25AM -0700, Charles Boone wrote:
> One piece of info that I did not include,  which I
> thought might be relative to the ps/2 issue.  I am not
> sure it is, but I do not have a keyboard or mouse
> connected on the c240.  I was pretty sure that it
> would not be a problem, since it would be just like
> having a dumb terminal on it.

I agree, that is unlikely to be a problem.

Richard





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Subject: Re: [parisc-linux] problems with checksums
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----------  Message transmis  ----------
Subject: Re: [parisc-linux] problems with checksums
Date: Thu, 12 Jul 2001 17:17:11 +0200
From: Matthieu Le Corre <matthieu.lecorre@polytech.univ-nantes.fr>
To: "rpengelly" <rpengelly@ati.stlawrencec.on.ca>


Le Jeudi 12 Juillet 2001 17:05, vous avez crit :
> I downloaded the 0.92 full iso and its checksum did not match any of the
> one's given. I'm wondering if it may be because I first have to download it
> form esiee to a windows machine then transfer it via ftp to a linux box.
>
> It still seems strange that the file downloads in .gz format but will not
> unzip.
>
> Would you be willing to help me out by sending the files by ftp to my linux
> box? I don't know if you have a high speed connection or not?
> Thanks again

give me your ftp adresse i send it to you the .9.2iso full with correct
 md5sum

> Ray
>
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

--
_________________________________________________

                    Matthieu Le Corre
                  Service informatique
   Ecole Polytechnique de l'Universit de Nantes
      Matthieu.Lecorre@polytech.univ-nantes.fr
                     02.40.68.32.23
__________________________________________________

-------------------------------------------------------

-- 
_________________________________________________
  
                    Matthieu Le Corre
                  Service informatique
   Ecole Polytechnique de l'Universit de Nantes
      Matthieu.Lecorre@polytech.univ-nantes.fr
                     02.40.68.32.23
__________________________________________________




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In reference to a message from rpengelly, dated Jul 12:
> I downloaded the 0.92 full iso and its checksum did not match any of the
> one's given. I'm wondering if it may be because I first have to download it
> form esiee to a windows machine then transfer it via ftp to a linux box.
> 
> It still seems strange that the file downloads in .gz format but will not
> unzip.
> 
> Would you be willing to help me out by sending the files by ftp to my linux
> box? I don't know if you have a high speed connection or not?
> Thanks again

Be careful, Debian uses BSD md5sum instead of GNU md5, some other Linux
systems use GNU md5sum. They produce different output for the same
input!

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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= > CM best practices usually involve explicitly tagging any release one
= > hopes to reproduce in the future and we could start doing that (I recommend
= > it).  For now either we apply the aforementioned workaround so we can
= > do untagged date-based checkouts, or I can come up with a procedure for
= > grabbing a suitable set of bits.
= 
= Tags are cheap.  Explicitly tagging at important moments is the way to 
= go.  Relying on a date-based checkout is potentially less accurate, so 
= IMO this shouldn't be the common practice.  There's no harm in adding a 
= static tag, and you can always remove it or possibly fix it up if you 
= get it wrong.

Tagging a linux source tree over the network is slow however.

More information on date+branch CVS checkouts:  When there are multiple
branches, a date-based checkout must also supply a branch, implicitly
or explicitly, to disambiguate.  RCS has this feature
and it works fine (see the 'co' man page).  I can't force CVS to do it
though, on the trunk anyway, despite it's being built upon RCS :-(

So the workaround for date-based checkout of our trunk is.... use RCS
on a copy (can be 'cp -l') of our CVS repository :-( :-(

= Writing an import script was one of those things I always meant to do in 
= my copious spare time.  I'm glad to see that someone is actually doing 
= the work :)  Where does the code for safe-cvsimport live?

http://puffin.external.hp.com/cvs/build-tools/safe-cvsimport

Beware -- it uses 'cvs admin -b' plus at the moment seems not to remove
upstream-removed files correctly.  I'm thinking of re-doing it to
avoid using 'cvs import' altogether -- it is in need of a rewrite.

= I'd avoid using the term "vendor branch", since that already has a 
= specific meaning to savvy CVS users (who will rightly criticize their 
= use).  Calling it something like the "upstream branch" would avoid the 
= overloaded meaning.

Good idea.

= I haven't been following things enough to know what 
= the issues related to "the vestiges of upstream imports" are.

At least one upstream import+merge was done directly to the trunk.  So
changes which came with that import are unresolvable by
CVS during a merge and can require some sleuthing -- particularly
any files which were added/deleted at that time.

	-P




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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] problems with checksums
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> Be careful, Debian uses BSD md5sum instead of GNU md5, some other Linux
> systems use GNU md5sum. They produce different output for the same
> input!

..... or maybe i'm just smoking something. ISTR them being different in
some cases, but when i tried just now they produce the same output.
Argh...

sorry to add to the confusion,
randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Andrew Shugg <andrew@neep.com.au>
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Quoth Randolph Chung:
> Be careful, Debian uses BSD md5sum instead of GNU md5, some other
> Linux systems use GNU md5sum. They produce different output for the
> same input!

It does?  I've never seen a GNU md5sum.  BSD's "md5" program has a
different output format although the algorithm is the same.  Also the
various checksum programs I've found for Windows and Mac OS refer to the
algorithm as 'RSA MD5'.  The only times I've found a discrepancy between
md5sum programs is the Windows command-line one that rudely assumes data
is ascii by default and has to be given the '-b' flag for checksums to
match those generated under a Unix or Mac.

(If you can set me straight off-list I'd be happy to listen.)

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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On Thu, Jul 12, 2001 at 08:55:31AM -0700, Randolph Chung wrote:
> > Be careful, Debian uses BSD md5sum instead of GNU md5, some other Linux
> > systems use GNU md5sum. They produce different output for the same
> > input!
> 
> ..... or maybe i'm just smoking something. ISTR them being different in
> some cases, but when i tried just now they produce the same output.
> Argh...

You're confused with normal sum, I believe.  Although GNU sum defaults to
BSD-style, so I'm not sure exactly which drugs you're taking :-)

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:18:28 2018
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From: "rpengelly" <rpengelly@ati.stlawrencec.on.ca>
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Subject: [parisc-linux] 735/99
Date: Thu, 12 Jul 2001 13:32:14 -0400
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This is a multi-part message in MIME format.

------=_NextPart_000_0033_01C10AD7.0FDE7C50
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

I've got the 0.9.2 full iso and mounted it properly. We've booted using =
rbootd and the lifimage loads but runs into trouble at the kernel =
branch.

The exact error is=20
branching to kernel entry point 0x00100000

Anyone know what would cause this?


------=_NextPart_000_0033_01C10AD7.0FDE7C50
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2919.6307" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>I've got the 0.9.2 full iso and mounted =
it=20
properly. We've booted using rbootd and the lifimage loads but runs into =
trouble=20
at the kernel branch.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>The exact error is </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>branching to kernel entry point=20
0x00100000</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Anyone know what would cause =
this?</FONT></DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

------=_NextPart_000_0033_01C10AD7.0FDE7C50--





From - Thu Nov 08 21:18:28 2018
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From: "rpengelly" <rpengelly@ati.stlawrencec.on.ca>
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Subject: Re: [parisc-linux] 735/99
Date: Thu, 12 Jul 2001 13:37:31 -0400
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Ignore the last message. I forgot to change the command line to =
console=3DttyS0.
  ----- Original Message -----=20
  From: rpengelly=20
  To: parisc-linux@lists.parisc-linux.org=20
  Sent: Thursday, July 12, 2001 1:32 PM
  Subject: [parisc-linux] 735/99


  I've got the 0.9.2 full iso and mounted it properly. We've booted =
using rbootd and the lifimage loads but runs into trouble at the kernel =
branch.

  The exact error is=20
  branching to kernel entry point 0x00100000

  Anyone know what would cause this?


------=_NextPart_000_000C_01C10AD7.CCB7AB80
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2919.6307" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Ignore the last message. I forgot to =
change the=20
command line to console=3DttyS0.</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:rpengelly@ati.stlawrencec.on.ca"=20
  title=3Drpengelly@ati.stlawrencec.on.ca>rpengelly</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  href=3D"mailto:parisc-linux@lists.parisc-linux.org"=20
  =
title=3Dparisc-linux@lists.parisc-linux.org>parisc-linux@lists.parisc-lin=
ux.org</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Thursday, July 12, 2001 =
1:32=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [parisc-linux] =
735/99</DIV>
  <DIV><BR></DIV>
  <DIV><FONT face=3DArial size=3D2>I've got the 0.9.2 full iso and =
mounted it=20
  properly. We've booted using rbootd and the lifimage loads but runs =
into=20
  trouble at the kernel branch.</FONT></DIV>
  <DIV>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>The exact error is </FONT></DIV>
  <DIV><FONT face=3DArial size=3D2>branching to kernel entry point=20
  0x00100000</FONT></DIV>
  <DIV>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>Anyone know what would cause =
this?</FONT></DIV>
  <DIV>&nbsp;</DIV></BLOCKQUOTE></BODY></HTML>

------=_NextPart_000_000C_01C10AD7.CCB7AB80--





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Subject: Re: [parisc-linux] CVS rumors
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Paul Bame wrote:


 > = Tags are cheap.  Explicitly tagging at important moments is the way to
 > = go.  Relying on a date-based checkout is potentially less accurate, so
 > = IMO this shouldn't be the common practice.  There's no harm in 
adding a
 > = static tag, and you can always remove it or possibly fix it up if you
 > = get it wrong.
 >
 > Tagging a linux source tree over the network is slow however.


True, but in the absence of a working date + branch checkout, it's a
reasonable interim solution (real solution is to fix cvs).


 > More information on date+branch CVS checkouts:  When there are multiple
 > branches, a date-based checkout must also supply a branch, implicitly
 > or explicitly, to disambiguate.  RCS has this feature
 > and it works fine (see the 'co' man page).  I can't force CVS to do it
 > though, on the trunk anyway, despite it's being built upon RCS :-(
 >
 > So the workaround for date-based checkout of our trunk is.... use RCS
 > on a copy (can be 'cp -l') of our CVS repository :-( :-(


Ugh.


 > = Where does the code for safe-cvsimport live?
 >
 > http://puffin.external.hp.com/cvs/build-tools/safe-cvsimport
 >
 > Beware -- it uses 'cvs admin -b' plus at the moment seems not to remove
 > upstream-removed files correctly.  I'm thinking of re-doing it to
 > avoid using 'cvs import' altogether -- it is in need of a rewrite.


I don't know of any way to get rid of the vendor branch taint other than
using 'cvs admin -b' or (less preferably) rcs directly.


 > = I haven't been following things enough to know what
 > = the issues related to "the vestiges of upstream imports" are.
 >
 > At least one upstream import+merge was done directly to the trunk.  So
 > changes which came with that import are unresolvable by
 > CVS during a merge and can require some sleuthing -- particularly
 > any files which were added/deleted at that time.


Ouch.  The import should have some distinct tag, and I guess using a
date tag is the best you'll get for trying to determine the state prior
to the merge (which, according to Murphy's Law, I predict overlapped
regular development).  My best advice is "don't do that then".

	- Mike.








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Xref: news.gmane.org gmane.linux.ports.parisc:11614

= True, but in the absence of a working date + branch checkout, it's a
= reasonable interim solution (real solution is to fix cvs).

There's another "solution".  date+branch checkout works on other branches
just not on the trunk :-)  One idea I propose for discussion is moving
development from the trunk to a branch so in the future we could do
date+branch checkouts.  We'll soon have 2 development branches
(2.4.x and 2.5.x) so we'll all need to learn to use a few more CVS
features anyway.

As for fixing CVS, there was no reply to my cvs bugs e-mail containing
the ultra-simple test case showing that HEAD+date checkouts don't work.

= I don't know of any way to get rid of the vendor branch taint other than
= using 'cvs admin -b' or (less preferably) rcs directly.

Unfortunately if you're actually using the CVS default branch feature,
safe-cvsimport's 'cvs admin -b' will make you unhappy :-)

The other option is to never use cvs import -- rather late for
us though there are some arguments for archiving the old repository
and reinitializing -- especially just prior to 2.5 kernels.

= Ouch.  The import should have some distinct tag, and I guess using a
= date tag is the best you'll get for trying to determine the state prior
= to the merge (which, according to Murphy's Law, I predict overlapped
= regular development).  My best advice is "don't do that then".

Fortunately by diffing against Linus' tree, willy tends to catch the
fallout from the mixed imports which we don't catch while manually
resolving merges.

	-P




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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Subject: [parisc-linux] palinux 0.9.2 && kernel 2.4.6-pa12 (no ps/2 kbd answer)
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Xref: news.gmane.org gmane.linux.ports.parisc:11615

Dear Richard,

I read mailing list regarding the problem of ps/2 keyboard locked under K
2.4.6.

I met the same problem as well with a 712 as well as B180L.

And the workaround we know to un-plug, replug the keyboard does not work in
this case.

I would like o submit this short message log:

### K 2.4.0-32

Jul  8 22:17:22 palinux2 syslogd 1.4.1#2: restart.
Jul  8 22:17:23 palinux2 kernel: klogd 1.4.1#2, log source =3D /proc/kmsg
started.
Jul  8 22:17:23 palinux2 kernel: Inspecting /boot/System.map
Jul  8 22:17:26 palinux2 kernel: Cannot find map file.
Jul  8 22:17:26 palinux2 kernel: No module symbols loaded.
Jul  8 22:17:26 palinux2 kernel: Linux version 2.4.0-32 (root@slab) (gcc
version 3.0 (Debian)) #1 Thu Jun 28 11:49:00 BST 2001
Jul  8 22:17:26 palinux2 kernel: FP[0] enabled: Rev 1 Model 13
Jul  8 22:17:26 palinux2 kernel: The 32-bit Kernel has started...
Jul  8 22:17:26 palinux2 kernel: Determining PDC firmware type: Older
Legacy Box
Jul  8 22:17:26 palinux2 kernel: model^I00006010 00000481 00000000 00000000
77dd299c 00000000 00000004 00000072 00000072
Jul  8 22:17:26 palinux2 kernel: vers^I0000000c
Jul  8 22:17:26 palinux2 kernel: CPUID^Ivers 0 rev 0
Jul  8 22:17:26 palinux2 kernel: model^I9000/712
Jul  8 22:17:26 palinux2 kernel: Total Memory: 64 Mb
Jul  8 22:17:26 palinux2 kernel: On node 0 totalpages: 16384
Jul  8 22:17:26 palinux2 kernel: zone(0): 16384 pages.
Jul  8 22:17:26 palinux2 kernel: zone(1): 0 pages.
Jul  8 22:17:26 palinux2 kernel: zone(2): 0 pages.
Jul  8 22:17:26 palinux2 kernel: Searching for devices...
Jul  8 22:17:26 palinux2 kernel: Found devices:
Jul  8 22:17:26 palinux2 kernel: 1. Gecko 80 GSC Core Graphics (10) at
0xf8000000, versions 0x1c, 0x0, 0x85, 0x0, 0x0
Jul  8 22:17:26 palinux2 kernel: 2. Gecko 80 Core BA (11) at 0xf0100000,
versions 0x1c, 0x0, 0x81, 0x0, 0x0
Jul  8 22:17:26 palinux2 kernel: 3. Gecko 80 Core SCSI (10) at 0xf0106000,
versions 0x1c, 0x0, 0x82, 0x0, 0x0
Jul  8 22:17:26 palinux2 kernel: 4. Gecko 80 Core LAN (802.3) (10) at
0xf0107000, versions 0x1c, 0x0, 0x8a, 0x0, 0x0
Jul  8 22:17:26 palinux2 kernel: 5. Gecko 80 Core RS-232 (10) at
0xf0105000, versions 0x1c, 0x0, 0x8c, 0x0, 0x0
Jul  8 22:17:26 palinux2 kernel: 6. Gecko 80 Core Centronics (10) at
0xf0102000, versions 0x1c, 0x0, 0x74, 0x0, 0x0
Jul  8 22:17:26 palinux2 kernel: 7. Gecko 80 Audio (10) at 0xf0104000,
versions 0x1c, 0x0, 0x7b, 0x0, 0x0
Jul  8 22:17:26 palinux2 kernel: 8. Gecko 80 Core PC Floppy (10) at
0xf010a000, versions 0x1c, 0x0, 0x83, 0x0, 0x0
Jul  8 22:17:26 palinux2 kernel: 9. Gecko 80 Core PS/2 Port (10) at
0xf0108000, versions 0x1c, 0x0, 0x84, 0x0, 0x0
Jul  8 22:17:26 palinux2 kernel: 10. Gecko 80 Core PS/2 Port (10) at
0xf0108100, versions 0x1c, 0x0, 0x84, 0x0, 0x0
Jul  8 22:17:26 palinux2 kernel: 11. Gecko 80 (712/80) (0) at 0xfffbe000,
versions 0x601, 0x0, 0x4, 0x0, 0x81
Jul  8 22:17:26 palinux2 kernel: 12. Gecko 80 (1) at 0xfffbf000, versions
0x38, 0x0, 0x9, 0x0, 0x0
Jul  8 22:17:26 palinux2 kernel: That's a total of 12 devices.
Jul  8 22:17:26 palinux2 kernel: CPU(s): 1 x PA7100LC (PCX-L) at 80.000000
MHz
Jul  8 22:17:26 palinux2 kernel: Kernel command line: root=3D/dev/sda3 HOME=
=3D/
console=3Dtty0 sti=3D0 sti_font=3DVGA8x16 TERM=3Dlinux
Jul  8 22:17:26 palinux2 kernel: Console: colour dummy device 160x64
Jul  8 22:17:26 palinux2 kernel: Calibrating delay loop... 79.66 BogoMIPS
Jul  8 22:17:26 palinux2 kernel: Memory: 61920k available
Jul  8 22:17:26 palinux2 kernel: Dentry-cache hash table entries: 8192
(order: 4, 65536 bytes)
Jul  8 22:17:26 palinux2 kernel: Buffer-cache hash table entries: 1024
(order: 0, 4096 bytes)
Jul  8 22:17:26 palinux2 kernel: Page-cache hash table entries: 16384
(order: 4, 65536 bytes)
Jul  8 22:17:26 palinux2 kernel: Inode-cache hash table entries: 4096
(order: 3, 32768 bytes)
Jul  8 22:17:26 palinux2 kernel: POSIX conformance testing by UNIFIX
Jul  8 22:17:26 palinux2 kernel: Lasi version 0 at 0xf0100000 found.
Jul  8 22:17:26 palinux2 kernel: PS/2 keyboard controller at 0xf0108000
(irq 69) found, device attached.
Jul  8 22:17:26 palinux2 kernel: PS/2 psaux controller at 0xf0108100 (irq
69) found, device attached.
Jul  8 22:17:26 palinux2 kernel:
Jul  8 22:17:26 palinux2 kernel: sticonsole_init: searching for STI ROMs
Jul  8 22:17:26 palinux2 kernel: STI word mode ROM at f0080000,
hpa=3Df8000000
Jul  8 22:17:26 palinux2 kernel: STI word mode ROM, id 2b4ded6d-40a00499,
conforms to spec rev. 8.04
Jul  8 22:17:26 palinux2 kernel: STI device: HPA208LC1280
Jul  8 22:17:26 palinux2 kernel: Console: switching to colour STI console
160x64
Jul  8 22:17:26 palinux2 kernel: Found i82596 at 0xf0107000, IRQ 87
Jul  8 22:17:26 palinux2 kernel: early initialization of device eth0 is
deferred
Jul  8 22:17:26 palinux2 kernel: Linux NET4.0 for Linux 2.4
Jul  8 22:17:26 palinux2 kernel: Based upon Swansea University Computer
Society NET3.039
Jul  8 22:17:26 palinux2 kernel: Starting kswapd v1.8
Jul  8 22:17:26 palinux2 kernel: Console: switching to colour frame buffer
device 160x64
Jul  8 22:17:26 palinux2 kernel: fb0: stifb 1280x1024-8 frame buffer
device, id: 2b4ded6d, iobase: 0xf8100000
Jul  8 22:17:26 palinux2 kernel: pty: 256 Unix98 ptys configured
Jul  8 22:17:26 palinux2 kernel: lp: driver loaded but no devices found
Jul  8 22:17:26 palinux2 kernel: RAMDISK driver initialized: 16 RAM disks
of 6144K size 1024 blocksize
Jul  8 22:17:26 palinux2 kernel: loop: enabling 8 loop devices
Jul  8 22:17:26 palinux2 kernel: eth0: 82596 at 0xf0107000, 08 00 09 C9 59
7A IRQ 87.
Jul  8 22:17:26 palinux2 kernel: 82596.c $Revision: 1.18 $
Jul  8 22:17:26 palinux2 kernel: Serial driver version 5.02 (2000-08-09)
with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Jul  8 22:17:26 palinux2 kernel: ttyS00 at iomem 0xf0105800 (irq =3D 90) is=
 a
16550A
Jul  8 22:17:26 palinux2 kernel: Generic RTC Driver v1.02 05/27/1999 Sam
Creasey (sammy@oh.verio.com)
Jul  8 22:17:26 palinux2 kernel: parport_init_chip: initialize
bidirectional-mode.
Jul  8 22:17:26 palinux2 kernel: parport0: PC-style at 0xf0102800, irq 88
[PCSPP,TRISTATE]
Jul  8 22:17:26 palinux2 kernel: lp0: using parport0 (interrupt-driven).
Jul  8 22:17:26 palinux2 kernel: SCSI subsystem driver Revision: 1.00
Jul  8 22:17:26 palinux2 kernel: sim700: Configuring 53c710 (SCSI-ID 7) at
f0106100, IRQ 86, options 0
Jul  8 22:17:26 palinux2 kernel: scsi0: Revision 0x2
Jul  8 22:17:26 palinux2 kernel: scsi0: test 1 completed ok.
Jul  8 22:17:26 palinux2 kernel: scsi0 : LASI/Simple 53c7xx
Jul  8 22:17:26 palinux2 kernel:   Vendor: SEAGATE   Model: ST34572N
Rev: HP03
Jul  8 22:17:26 palinux2 kernel:   Type:   Direct-Access
ANSI SCSI revision: 02
Jul  8 22:17:26 palinux2 kernel:   Vendor: HP        Model: C3325A
Rev: HP08
Jul  8 22:17:26 palinux2 kernel:   Type:   Direct-Access
ANSI SCSI revision: 02
Jul  8 22:17:26 palinux2 kernel: Detected scsi disk sda at scsi0, channel
0, id 3, lun 0
Jul  8 22:17:26 palinux2 kernel: Detected scsi disk sdb at scsi0, channel
0, id 6, lun 0
Jul  8 22:17:26 palinux2 kernel: SCSI device sda: 8388314 512-byte hdwr
sectors (4295 MB)
Jul  8 22:17:26 palinux2 kernel: Partition check:
Jul  8 22:17:26 palinux2 kernel:  sda: sda1 sda2 sda3
Jul  8 22:17:26 palinux2 kernel: SCSI device sdb: 4194685 512-byte hdwr
sectors (2148 MB)
Jul  8 22:17:26 palinux2 kernel:  sdb: unknown partition table
Jul  8 22:17:26 palinux2 kernel: Lasi Harmony Audio rev. 18 at 0xf0104000,
using IRQ 82
Jul  8 22:17:26 palinux2 kernel: md driver 0.90.0 MAX_MD_DEVS=3D256,
MD_SB_DISKS=3D27
Jul  8 22:17:26 palinux2 kernel: md.c: sizeof(mdp_super_t) =3D 4096
Jul  8 22:17:26 palinux2 kernel: NET4: Linux TCP/IP 1.0 for NET4.0
Jul  8 22:17:26 palinux2 kernel: IP Protocols: ICMP, UDP, TCP
Jul  8 22:17:26 palinux2 kernel: IP: routing cache hash table of 512
buckets, 4Kbytes
Jul  8 22:17:26 palinux2 kernel: TCP: Hash tables configured (established
4096 bind 8192)
Jul  8 22:17:26 palinux2 kernel: eth0: link ok.
Jul  8 22:17:26 palinux2 kernel: NET4: Unix domain sockets 1.0/SMP for
Linux NET4.0.
Jul  8 22:17:26 palinux2 kernel: VFS: Mounted root (ext2 filesystem)
readonly.
Jul  8 22:17:26 palinux2 kernel: Adding Swap: 123684k swap-space (priority
-1)
Jul  8 22:17:26 palinux2 kernel: eth0: link ok.
Jul  8 22:17:28 palinux2 lpd[162]: restarted
Jul 12 15:31:22 palinux2 kernel: Kernel logging (proc) stopped.
Jul 12 15:31:22 palinux2 kernel: Kernel log daemon terminating.
Jul 12 15:31:22 palinux2 exiting on signal 15

### K 2.4.6-pa12

Jul 12 15:32:41 palinux2 syslogd 1.4.1#2: restart.
Jul 12 15:32:42 palinux2 kernel: klogd 1.4.1#2, log source =3D /proc/kmsg
started.
Jul 12 15:32:42 palinux2 kernel: Inspecting /boot/System.map
Jul 12 15:32:46 palinux2 lpd[155]: restarted
Jul 12 15:32:47 palinux2 kernel: Loaded 24065 symbols from
/boot/System.map.
Jul 12 15:32:47 palinux2 kernel: Symbols match kernel version 2.4.6.
Jul 12 15:32:47 palinux2 kernel: No module symbols loaded - kernel modules
not enabled.
Jul 12 15:32:47 palinux2 kernel: Linux version 2.4.6-pa12 (root@wslin) (gcc
version 3.0 20010427 (prerelease)) #1 Thu Jul 12 13:23:06 GMT 2001
Jul 12 15:32:47 palinux2 kernel: FP[0] enabled: Rev 1 Model 13
Jul 12 15:32:47 palinux2 kernel: The 32-bit Kernel has started...
Jul 12 15:32:47 palinux2 kernel: Determining PDC firmware type: Older
Legacy Box
Jul 12 15:32:47 palinux2 kernel: model^I00006010 00000481 00000000 00000000
77dd299c 00000000 00000004 00000072 00000072
Jul 12 15:32:47 palinux2 kernel: vers^I0000000c
Jul 12 15:32:47 palinux2 kernel: CPUID^Ivers 0 rev 0
Jul 12 15:32:47 palinux2 kernel: model^I9000/712
Jul 12 15:32:47 palinux2 kernel: Total Memory: 64 Mb
Jul 12 15:32:47 palinux2 kernel: On node 0 totalpages: 16384
Jul 12 15:32:47 palinux2 kernel: zone(0): 16384 pages.
Jul 12 15:32:47 palinux2 kernel: zone(1): 0 pages.
Jul 12 15:32:47 palinux2 kernel: zone(2): 0 pages.
Jul 12 15:32:47 palinux2 kernel: Searching for devices...
Jul 12 15:32:47 palinux2 kernel: Found devices:
Jul 12 15:32:47 palinux2 kernel: 1. Gecko 80 GSC Core Graphics (10) at
0xf8000000, versions 0x1c, 0x0, 0x85, 0x0, 0x0
Jul 12 15:32:47 palinux2 kernel: 2. Gecko 80 Core BA (11) at 0xf0100000,
versions 0x1c, 0x0, 0x81, 0x0, 0x0
Jul 12 15:32:47 palinux2 kernel: 3. Gecko 80 Core SCSI (10) at 0xf0106000,
versions 0x1c, 0x0, 0x82, 0x0, 0x0
Jul 12 15:32:47 palinux2 kernel: 4. Gecko 80 Core LAN (802.3) (10) at
0xf0107000, versions 0x1c, 0x0, 0x8a, 0x0, 0x0
Jul 12 15:32:47 palinux2 kernel: 5. Gecko 80 Core RS-232 (10) at
0xf0105000, versions 0x1c, 0x0, 0x8c, 0x0, 0x0
Jul 12 15:32:47 palinux2 kernel: 6. Gecko 80 Core Centronics (10) at
0xf0102000, versions 0x1c, 0x0, 0x74, 0x0, 0x0
Jul 12 15:32:47 palinux2 kernel: 7. Gecko 80 Audio (10) at 0xf0104000,
versions 0x1c, 0x0, 0x7b, 0x0, 0x0
Jul 12 15:32:47 palinux2 kernel: 8. Gecko 80 Core PC Floppy (10) at
0xf010a000, versions 0x1c, 0x0, 0x83, 0x0, 0x0
Jul 12 15:32:47 palinux2 kernel: 9. Gecko 80 Core PS/2 Port (10) at
0xf0108000, versions 0x1c, 0x0, 0x84, 0x0, 0x0
Jul 12 15:32:47 palinux2 kernel: 10. Gecko 80 Core PS/2 Port (10) at
0xf0108100, versions 0x1c, 0x0, 0x84, 0x0, 0x0
Jul 12 15:32:47 palinux2 kernel: 11. Gecko 80 (712/80) (0) at 0xfffbe000,
versions 0x601, 0x0, 0x4, 0x0, 0x81
Jul 12 15:32:47 palinux2 kernel: 12. Gecko 80 (1) at 0xfffbf000, versions
0x38, 0x0, 0x9, 0x0, 0x0
Jul 12 15:32:47 palinux2 kernel: That's a total of 12 devices.
Jul 12 15:32:47 palinux2 kernel: CPU(s): 1 x PA7100LC (PCX-L) at 80.000000
MHz
Jul 12 15:32:47 palinux2 kernel: Kernel command line: root=3D/dev/sda3 HOME=
=3D/
console=3Dtty0 sti=3D0 sti_font=3DVGA8x16 TERM=3Dlinux
Jul 12 15:32:47 palinux2 kernel: Console: colour dummy device 160x64
Jul 12 15:32:47 palinux2 kernel: Calibrating delay loop... 79.66 BogoMIPS
Jul 12 15:32:47 palinux2 kernel: Memory: 61780k available
Jul 12 15:32:47 palinux2 kernel: Dentry-cache hash table entries: 8192
(order: 4, 65536 bytes)
Jul 12 15:32:47 palinux2 kernel: Inode-cache hash table entries: 4096
(order: 3, 32768 bytes)
Jul 12 15:32:47 palinux2 kernel: Mount-cache hash table entries: 1024
(order: 1, 8192 bytes)
Jul 12 15:32:47 palinux2 kernel: Buffer-cache hash table entries: 1024
(order: 0, 4096 bytes)
Jul 12 15:32:47 palinux2 kernel: Page-cache hash table entries: 16384
(order: 4, 65536 bytes)
Jul 12 15:32:47 palinux2 kernel: POSIX conformance testing by UNIFIX
Jul 12 15:32:47 palinux2 kernel: Lasi version 0 at 0xf0100000 found.
Jul 12 15:32:47 palinux2 kernel: Linux NET4.0 for Linux 2.4
Jul 12 15:32:47 palinux2 kernel: Based upon Swansea University Computer
Society NET3.039
Jul 12 15:32:47 palinux2 kernel: Starting kswapd v1.8
Jul 12 15:32:47 palinux2 kernel: parport_init_chip: initialize
bidirectional-mode.
Jul 12 15:32:47 palinux2 kernel: parport0: PC-style at 0xf0102800, irq 88
[PCSPP,TRISTATE]
Jul 12 15:32:47 palinux2 kernel: STI word mode ROM at f0080000,
hpa=3Df8000000
Jul 12 15:32:47 palinux2 kernel: STI word mode ROM, id 2b4ded6d-40a00499,
conforms to spec rev. 8.04
Jul 12 15:32:47 palinux2 kernel: STI device: HPA208LC1280
Jul 12 15:32:47 palinux2 kernel: Console: switching to colour frame buffer
device 160x64
Jul 12 15:32:47 palinux2 kernel: fb0: stifb 1280x1024-8 frame buffer
device, id: 2b4ded6d, iobase: 0xf8100000
Jul 12 15:32:47 palinux2 kernel: pty: 256 Unix98 ptys configured
Jul 12 15:32:47 palinux2 kernel: lp0: using parport0 (interrupt-driven).
Jul 12 15:32:47 palinux2 kernel: Serial driver version 5.05a (2001-03-20)
with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Jul 12 15:32:47 palinux2 kernel: ttyS00 at iomem 0xf0105800 (irq =3D 90) is=
 a
16550A
Jul 12 15:32:47 palinux2 kernel: PS/2 keyboard controller at 0xf0108000
(irq 69) found, device attached.
Jul 12 15:32:47 palinux2 kernel: PS/2 psaux controller at 0xf0108100 (irq
69) found, device attached.
Jul 12 15:32:47 palinux2 kernel: Generic RTC Driver v1.02 05/27/1999 Sam
Creasey (sammy@oh.verio.com)
Jul 12 15:32:47 palinux2 kernel: block: queued sectors max/low
40896kB/13632kB, 128 slots per queue
Jul 12 15:32:47 palinux2 kernel: RAMDISK driver initialized: 16 RAM disks
of 4096K size 1024 blocksize
Jul 12 15:32:47 palinux2 kernel: loop: loaded (max 8 devices)
Jul 12 15:32:47 palinux2 kernel: SCSI subsystem driver Revision: 1.00
Jul 12 15:32:47 palinux2 kernel: sim700: Configuring 53c710 (SCSI-ID 7) at
f0106100, IRQ 86, options 0
Jul 12 15:32:47 palinux2 kernel: scsi0: Revision 0x2
Jul 12 15:32:47 palinux2 kernel: scsi0: test 1 completed ok.
Jul 12 15:32:47 palinux2 kernel: scsi0 : LASI/Simple 53c7xx
Jul 12 15:32:47 palinux2 kernel:   Vendor: SEAGATE   Model: ST34572N
Rev: HP03
Jul 12 15:32:47 palinux2 kernel:   Type:   Direct-Access
ANSI SCSI revision: 02
Jul 12 15:32:47 palinux2 kernel:   Vendor: HP        Model: C3325A
Rev: HP08
Jul 12 15:32:47 palinux2 kernel:   Type:   Direct-Access
ANSI SCSI revision: 02
Jul 12 15:32:47 palinux2 kernel: Detected scsi disk sda at scsi0, channel
0, id 3, lun 0
Jul 12 15:32:47 palinux2 kernel: Detected scsi disk sdb at scsi0, channel
0, id 6, lun 0
Jul 12 15:32:47 palinux2 kernel: SCSI device sda: 8388314 512-byte hdwr
sectors (4295 MB)
Jul 12 15:32:47 palinux2 kernel: Partition check:
Jul 12 15:32:47 palinux2 kernel:  sda: sda1 sda2 sda3
Jul 12 15:32:47 palinux2 kernel: SCSI device sdb: 4194685 512-byte hdwr
sectors (2148 MB)
Jul 12 15:32:47 palinux2 kernel:  sdb: unknown partition table
Jul 12 15:32:47 palinux2 kernel: Lasi Harmony Audio rev. 18 at 0xf0104000,
using IRQ 82
Jul 12 15:32:47 palinux2 kernel: sticonsole_init: searching for STI ROMs
Jul 12 15:32:47 palinux2 kernel: md: linear personality registered
Jul 12 15:32:47 palinux2 kernel: md: raid0 personality registered
Jul 12 15:32:47 palinux2 kernel: md: raid1 personality registered
Jul 12 15:32:47 palinux2 kernel: md: raid5 personality registered
Jul 12 15:32:47 palinux2 kernel: raid5: measuring checksumming speed
Jul 12 15:32:47 palinux2 kernel:    8regs     :    60.400 MB/sec
Jul 12 15:32:47 palinux2 kernel:    8regs_prefetch:    80.000 MB/sec
Jul 12 15:32:47 palinux2 kernel:    32regs    :   117.600 MB/sec
Jul 12 15:32:47 palinux2 kernel:    32regs_prefetch:   119.600 MB/sec
Jul 12 15:32:47 palinux2 kernel: raid5: using function: 32regs_prefetch
(119.600 MB/sec)
Jul 12 15:32:47 palinux2 kernel: md: md driver 0.90.0 MAX_MD_DEVS=3D256,
MD_SB_DISKS=3D27
Jul 12 15:32:47 palinux2 kernel: md: Autodetecting RAID arrays.
Jul 12 15:32:47 palinux2 kernel: md: autorun ...
Jul 12 15:32:47 palinux2 kernel: md: ... autorun DONE.
Jul 12 15:32:47 palinux2 kernel: Found i82596 at 0xf0107000, IRQ 87
Jul 12 15:32:47 palinux2 kernel: eth0: 82596 at 0xf0107000, 08 00 09 C9 59
7A IRQ 87.
Jul 12 15:32:47 palinux2 kernel: 82596.c $Revision: 1.20 $
Jul 12 15:32:47 palinux2 kernel: NET4: Linux TCP/IP 1.0 for NET4.0
Jul 12 15:32:47 palinux2 kernel: IP Protocols: ICMP, UDP, TCP
Jul 12 15:32:47 palinux2 kernel: IP: routing cache hash table of 512
buckets, 4Kbytes
Jul 12 15:32:47 palinux2 kernel: TCP: Hash tables configured (established
4096 bind 8192)
Jul 12 15:32:47 palinux2 kernel: NET4: Unix domain sockets 1.0/SMP for
Linux NET4.0.
Jul 12 15:32:47 palinux2 kernel: VFS: Mounted root (ext2 filesystem)
readonly.
Jul 12 15:32:47 palinux2 kernel: Adding Swap: 123684k swap-space (priority
-1)
Jul 12 15:32:47 palinux2 kernel: eth0: link ok.

What is strange is the "sticonsole_init: searching for STI ROMs"
which appear after STI... with kernel 2.4.6
and which apear before with 2.4.0

Could it be the reason?

Regards,
     Joel



                                                                           =
                                       =20
                    Richard Hirst                                          =
                                       =20
                    <rhirst@linux        To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD                             =20
                    care.com>            cc:                               =
                                       =20
                                         Subject:     Re: [parisc-linux] pa=
linux 0.9.1                            =20
                    09-07-01                                               =
                                       =20
                    07:21 PM                                               =
                                       =20
                                                                           =
                                       =20
                                                                           =
                                       =20



On Mon, Jul 09, 2001 at 05:42:10PM +0200, Jo=EBl Soete wrote:
>
> FYI
>
> I just recompile last cvs kernel (20010709 ie 2.4.6-pa7)
> It boot fine (whithout yet STICON, just as before kernel of palinux-0.9).
> So I believe that STICON on B180 will work soon.

Please try unplugging and then replugging your k/b when it
appears to be locked.  Seems it may be a keyboard reset problem.

Richard





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Xref: news.gmane.org gmane.linux.ports.parisc:11616

"rpengelly" wrote:
> I downloaded the 0.92 full iso and its checksum did not match any of the
> one's given. I'm wondering if it may be because I first have to download it
> form esiee to a windows machine then transfer it via ftp to a linux box.

Someone once mentioned here that windows machines attempt to download
the files as text rather than binaries. You might search in the mail
archives from 2 or 3 monthes ago for the original posting.

grant




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From: LaMont Jones <lamont@hp.com>
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Subject: [parisc-linux] J200 built-in broken with 2.4.6?
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I have a J200 that had a working NIC back in April, which now successfully
net-boots up to the point of trying to get it's IP, at which point I see
bootp requests (and their answer) on the bootp server, but it never accepts
the packet.  Since we tftpbooted, I find it hard to suspect hardware, and
rather expect that it's something b0rked in the 2.4.0->2.4.6 transition.

lamont





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From: Paul Bame <bame@fc.hp.com>
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Subject: [parisc-linux] CVS palinux 2.4/2.5/workarounds proposal
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Due to CVS bugs and the upcoming extra demands as we cope with both
2.4 and 2.5 linux, I propose the following architecture including
a sketch for how to transition.

In futureworld, we will have 4 branches:

What				Branch Name

upstream 2.4 sources		linus23 (also called linus24)
2.4 parisc development		devel23 (also called devel24)

upstream 2.5/2.6 sources	linus25 (also called linus26 later)
2.5/2.6 parisc development	devel25 (also called devel26 later)

The default branch which comes from CVS if you merely do a 'cvs co linux'
will be the devel23 branch.  Revision numbers in the devel23 branch
will be 2.3.X.X and in the devel25 branch, 2.5.X.X.  The HEAD/trunk
will contain no files and never be used again.  Note that the CVS features
for making this as convenient as today's development model are simple
and will not in general incur extra work.

Transition sketch:

    Populate the linus23 upstream branch:
	# The current Linus upstream branch is called 'linus', or 1.1.1,
	# which we'll just re-use under a new name(s)
	cvs co -rlinus linux
	# Add the alias 'linus23'
	cvs admin -nlinus23:linus
	# Add the alias 'linus24'
	cvs admin -nlinus24:linus

    Populate the devel23 branch:
        cvs up -RAPd
	cvs commit -r2.3
	cvs rtag -r2.3 -b devel23 linux
	cvs admin -ndevel24:devel23
	cvs up -rdevel23 -RPd
	# do not use commit -Rf -- doesn't work
	cvs commit -f -m'moved from HEAD' -R

    Make devel23 the default:
    	cvs admin -b2.3.2 (or cvs admin -bdevel23 if that works)

    Nuke the current trunk:
	cvs up -RAPd
        find . | fgrep -v CVS | xargs cvs rm -f
	cvs commit -m'moved everything to the devel23 branch'
	cvs up -RAPd # should be empty directory now

    Fix:
    	the /cvs CGI
	cvsview?
	bonsai
	others?

    Populate linus25 when 2.5 is released (trickery):
	cvs rtag -r1.1 -b linus25 linux
	cvs up -r1.1		# yes, this is required :-(
        cvs up -rlinus25
	Turn these files into linux 2.5 bits (cvs rm, cvs add, etc...)
	cvs commit -f -m 'import 2.5' -R

    Populate devel25 (more trickery):
	cvs up -RPd -r2.5	# should be EMPTY
	# bring in 2.3 devel
	cvs up -jdevel23 -RPd
	# Merge 2.4->2.5 changes
	cvs up -jlinus23 -jlinus25 -RPd
	cvs commit -f -R -m 'populate devel25 step 1'
	cvs rtag -r2.5 -b devel25 linux
	cvs up -rdevel25 -RPd
	cvs admin -ndevel26:devel25




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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
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Subject: Re: [parisc-linux] Re: Problem installing .9 iso image on C240
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On Wed, Jul 11, 2001 at 11:23:34PM -0600, Grant Grundler wrote:
> Richard Hirst wrote:
> > Installing a 64 bit kernel with narrow PDC
> > calls later would be an option (once it works).  Do we leave building
> > that kernel as an exercise for the user, or or do we have one packaged
> > in the archive?
> 
> I was under the impression the "CONFIG_PDC_NARROW" option would only
> "activate" itself in one boxes that needed it. Ie it does grow the kernel
> and AFAIK is really only useful for Cxxx models.
> Ryan, do I have it right?

Not quite.  Let me try to clarify (This is the help text for the 
CONFIG_PDC_NARROW option)....

CONFIG_PDC_NARROW
  Saying Y here will allow developers with a C180, C200, C240, C360,
  J200, J210, and/or a J2240 to test 64-bit kernels by providing 
  a wrapper for the 32-bit PDC calls.  Since the machines which 
  which require this option do not support over 4G of RAM, this
  option is targeted for developers of these machines wishing to
  test changes on both 32-bit and 64-bit configurations.

  If unsure, say N.

At one time I had run-time detection to detect if the machine was 
booted into wide mode it could detect if the pdc wrappers were needed.
After some discussion, we decided to make it a compiler option since
it added overhead to every pdc call and would rarely be used.

If the help text for this option needs to be clarified, please send
me your comments and I'll update the help text. :)

Thanks,

- Ryan

> I am pretty sure K/D/R-class boxes have a different source base for PDC
> which "properly" support wide-mode PDC calls.
> 
> thanks,
> grant
> 
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 

-- 




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From: Holger Zessel <hzessel@grc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] problem activating the optional lan card on 712/80 with 0.9-32serial
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Hi all,

did anybody manage to activate the optional lan card in the 712 ??

As far as I know the normal prefab kernel on one of the iso images
should work. And according to the website the card should be supported.
I installed the 0.9-32serial and everything was fine so far.

The boot messages show that the kernel sees the card but registering
the card as a networkdevice seems to be the problem.

I remembered that at least 2.2 kernels needed a commandline option
e.g   ether=0,0,eth1   to enable an additional lancard and
experimented with the command line but have not been able to find sufficient 
info or to see any effect on the behavior.

Crucial seem to be the following lines (full dmesg output is further
below):

4. Gecko 80 Core Lan (802.3) (10) at 0xf0107000, versions 0x1c, 0x0, 0x8a, 0x0, 0x0
...
12. Gecko Optional Lan (802.3) (10) at 0xf0507000, versions 0x18, 0x0, 0x8a, 0x0, 0x0
...
Found i82596 at 0xf0107000, IRQ 87
early initialization of device eth0 is deferred
Found i82596 at 0xf0507000, IRQ 119
early initialization of device eth0 is deferred
lan.c: register_netdevice ret'd -17
Warning : device (10, 0x18, 0x0, 0x8a, 0x0) NOT claimed by Lasi i82596 LAN 712, 715 or similiar


The card was working fine on HP-UX 10.20 and currently it is not connected to
a hub but that does not make a difference in the behavior.

Questions:
   - Any bugs / caveats known ??
   - cmdline options needed here evtly ??


Thanks in advance for feedback,
best regards,
Holger



Full dmesg output:


Linux version 2.4.0-pa10 (root@slab) (gcc version 3.0 20010315 (prerelease)) #1 Wed May 30 20:19:52 BST 2001
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Older Legacy Box
setup_cmdline(0x65328,0x65328,0x0,0x0)
PALO command line: 'root=/dev/sda2 HOME=/ TERM=linux console=ttyS0 ether=eth1,0,0,0,0'
PALO initrd 0-0
model   00006010 00000481 00000000 00000000 7816e9c5 00000000 00000004 00000072 00000072
vers    0000000b
CPUID   vers 0 rev 0
model   9000/712
Total Memory: 64 Mb
initrd: 00000000-00000000
pagetable_init
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Searching for devices...
Found devices:
1. Gecko 80 GSC Core Graphics (10) at 0xf8000000, versions 0x1c, 0x0, 0x85, 0x0, 0x0
2. Gecko 80 Core BA (11) at 0xf0100000, versions 0x1c, 0x0, 0x81, 0x0, 0x0
3. Gecko 80 Core SCSI (10) at 0xf0106000, versions 0x1c, 0x0, 0x82, 0x0, 0x0
4. Gecko 80 Core Lan (802.3) (10) at 0xf0107000, versions 0x1c, 0x0, 0x8a, 0x0, 0x0
5. Gecko 80 Core RS-232 (10) at 0xf0105000, versions 0x1c, 0x0, 0x8c, 0x0, 0x0
6. Gecko 80 Core Centronics (10) at 0xf0102000, versions 0x1c, 0x0, 0x74, 0x0, 0x0
7. Gecko 80 Audio (10) at 0xf0104000, versions 0x1c, 0x0, 0x7b, 0x0, 0x0
8. Gecko 80 Core PC Floppy (10) at 0xf010a000, versions 0x1c, 0x0, 0x83, 0x0, 0x0
9. Gecko 80 Core PC Keyboard (10) at 0xf0108000, versions 0x1c, 0x0, 0x84, 0x0, 0x0
10. Gecko 80 Core PC Keyboard (10) at 0xf0108100, versions 0x1c, 0x0, 0x84, 0x0, 0x0
11. Gecko 80 Core BA (11) at 0xf0500000, versions 0x1c, 0x0, 0x81, 0x0, 0x0
12. Gecko Optional Lan (802.3) (10) at 0xf0507000, versions 0x18, 0x0, 0x8a, 0x0, 0x0
13. Gecko Optional RS-232 (10) at 0xf0505000, versions 0x18, 0x0, 0x8c, 0x0, 0x0
14. Gecko 80 (712/80) (0) at 0xfffbe000, versions 0x601, 0x0, 0x4, 0x0, 0x81
15. Gecko 80 (1) at 0xfffbf000, versions 0x38, 0x0, 0x9, 0x0, 0x0
That's a total of 15 devices.
CPU(s): 1 x PA7100LC (PCX-L) at 80.000000 MHz
Kernel command line: root=/dev/sda2 HOME=/ TERM=linux console=ttyS0 ether=eth1,0,0,0,0
Calibrating delay loop... 79.66 BogoMIPS
Memory: 62272k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xf0100000 found.
Lasi version 0 at 0xf0500000 found.
Initializing Lasi PS/2-keyboard port at 0xf0108000...
Support for Lasi PS/2-psaux not yet available !
Found i82596 at 0xf0107000, IRQ 87
early initialization of device eth0 is deferred
Found i82596 at 0xf0507000, IRQ 119
early initialization of device eth0 is deferred
lan.c: register_netdevice ret'd -17
Warning : device (10, 0x18, 0x0, 0x8a, 0x0) NOT claimed by Lasi i82596 LAN 712, 715 or similiar
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
request_module[parport_lowlevel]: Root fs not mounted
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
eth0: 82596 at 0xf0107000, 08 00 09 5C 55 1E IRQ 87.
82596.c $Revision: 1.18 $
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0505800 (irq = 122) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c710 (SCSI-ID 7) at f0106100, IRQ 86, options 0
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: Good, target data areas are dma coherent
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: SEAGATE   Model: ST32550N          Rev: HP09
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 4, lun 0
SCSI device sda: 4165272 512-byte hdwr sectors (2133 MB)
Partition check:
 sda: sda1 sda2 sda3
md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md.c: sizeof(mdp_super_t) = 4096
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Adding Swap: 204592k swap-space (priority -1)
eth0: link ok.

-- 

                                                               __
        Holger Zessel                                         / /\
        Hewlett-Packard                                      / /  \
        Response Center Germany                      __     /_/ /\ \
        Berliner Str.111                            /_/\  __\ \ \_\ \
        40880 Ratingen, Germany                     \ \ \/ /\\ \ \/ /
        e-mail:   hzessel@noXspamX.grc.hp.com                 \ \ \/  \\ \  /
                  Holger_Zessel@noXspamX.hp.com                \ \  /\ \\ \ \
        FAX:      +49/2102/90-7934                     \ \ \ \ \\ \ \
                                                        \ \ \_\/ \ \ \
CC-UX Unix Competency Center, Subteam Network Services   \ \ \    \_\/
                                                          \_\/ I N V E N T

_________________________________________________________________________
Hewlett-Packard GmbH, Herrenberger Str. 110-140, 71034 Boeblingen,
Geschaeftsfuehrer: Heribert Schmitz (Vorsitzender), Hans-Jochen Lueckefett, 
Heiko Meyer, Fritz Schuller, Regine Stachelhaus, Jrgen Banhardt,
Vorsitzender des Aufsichtsrates: Joerg Menno Harms
Sitz der Gesellschaft: Boeblingen, Amtsgericht Boeblingen HRB 4081
_________________________________________________________________________






From - Thu Nov 08 21:18:29 2018
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Subject: [parisc-linux] HD not bootable after installation....
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Hi,

after solving my previous Problems i tried to install several times without
success because the SCSI-Controller performed Bus-Resets all the time. So I
played arround and found out that both Harddisks seemed to be kind of defective
(have to test them in a pc). After installing an other Harddisk the installation
went fine but for some reason this new Harddisk is not bootable (Palo was
executed successfully), its not in the list of bootable devices at startup and
if i select it manualy it fails to boot. But after booting from network the disk
is detected. Since this harddisk was in a PC before I wonder if theres anything
I may have forgotten...


Wolfgang Pedot

Development Engineer
R&D, Software

Harris Broadcast Europe
Oberer Paspelsweg 6-8
A-6830 Rankweil-Brederis
Tel:  +43 5522 9011 2302
Fax: +43 5522 9011 2565
e-mail: wpedot@harris.com







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Subject: [parisc-linux] setting up the STI console on a 735/99
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So I have now succesfully installed the base system on a external narrow =
SCSI. I can boot off of it. Now the next question is how do I set it up =
to go to the STI console instead of the serial?

Ray

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<DIV><FONT face=3DArial size=3D2>So I have now succesfully installed the =
base system=20
on a external narrow SCSI. I can boot off of it. Now the next question =
is how do=20
I set it up to go to the STI console instead of the serial?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Ray</FONT></DIV></BODY></HTML>

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From: Matthieu Le Corre <matthieu.lecorre@polytech.univ-nantes.fr>
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Subject: Re: [parisc-linux] setting up the STI console on a 735/99
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Le Jeudi 12 Juillet 2001 20:52, vous avez crit :
> So I have now succesfully installed the base system on a external narrow
> SCSI. I can boot off of it. Now the next question is how do I set it up to
> go to the STI console instead of the serial?
>
> Ray

try console=tty on palo commande line 

i try it, messages go on console but i get a "unable to open initial console"
and back to serial to login !

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-- 
_________________________________________________
  
                    Matthieu Le Corre
                  Service informatique
   Ecole Polytechnique de l'Universit de Nantes
      Matthieu.Lecorre@polytech.univ-nantes.fr
                     02.40.68.32.23
__________________________________________________




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From: "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Booting 0.9.2 on C110
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High all,

Just downloaded 0.9.2 image, burned it, and gave it a try on my C110.
(should work afaik)
For  the broad picture:
C110, 256MB mem PS/2 keyboard & mouse, two lan interface, neither connected
(yet) and no serial console)

Booting went well, switched to STI-console (nice tux  in upperleft corner)
In a blink boot (cpu, mem, disks, lan) info flashed across the screen, and
then, instead of login, a graphic screen with a general debian message that
it is experimental software.

After that the system seems to be frozen...

Am i missing something?

Hans.




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From: "rpengelly" <rpengelly@ati.stlawrencec.on.ca>
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Subject: Re: [parisc-linux] setting up the STI console on a 735/99
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I tried that but with the same result. Is there any way to get away from the
serial console and use the monitor for the 735? We're trying to set up a lab
of 700 and 735 for students so we need to get them running without the
serial console.


----- Original Message -----
From: "Matthieu Le Corre" <matthieu.lecorre@polytech.univ-nantes.fr>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Friday, July 13, 2001 8:13 AM
Subject: Re: [parisc-linux] setting up the STI console on a 735/99


> Le Jeudi 12 Juillet 2001 20:52, vous avez crit :
> > So I have now succesfully installed the base system on a external narrow
> > SCSI. I can boot off of it. Now the next question is how do I set it up
to
> > go to the STI console instead of the serial?
> >
> > Ray
>
> try console=tty on palo commande line
>
> i try it, messages go on console but i get a "unable to open initial
console"
> and back to serial to login !
>
> ----------------------------------------
> Content-Type: text/html; charset="iso-8859-1"; name="Pices jointes : 1"
> Content-Transfer-Encoding: quoted-printable
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> ----------------------------------------
>
> --
> _________________________________________________
>
>                     Matthieu Le Corre
>                   Service informatique
>    Ecole Polytechnique de l'Universit de Nantes
>       Matthieu.Lecorre@polytech.univ-nantes.fr
>                      02.40.68.32.23
> __________________________________________________
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
>





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Subject: Re: [parisc-linux] Booting 0.9.2 on C110
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Quoting "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>:

> High all,
> 
> Just downloaded 0.9.2 image, burned it, and gave it
> a try on my C110.
> (should work afaik)
> For  the broad picture:
> C110, 256MB mem PS/2 keyboard & mouse, two lan
> interface, neither connected
> (yet) and no serial console)
> 
> Booting went well, switched to STI-console (nice tux
>  in upperleft corner)
> In a blink boot (cpu, mem, disks, lan) info flashed
> across the screen, and
> then, instead of login, a graphic screen with a
> general debian message that
> it is experimental software.
> 
> After that the system seems to be frozen...
> 
> Am i missing something?
> 
> Hans.

Not really - its the PS/2 keyboard hang that currently
affects B-class and apparently C-class machine. Possibly
others too. My B132 does the same. Some people have had
success unplugging and replugging the keyboard at this
point - trying to provoke a reset. This hasn't worked for
me though :-(

-Andy

------------------------------------------------------------
F din egen @start.no-adresse gratis p http://www.start.no/




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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] help debuging HMPC
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Xref: news.gmane.org gmane.linux.ports.parisc:11627

Hello parisc-linux hackers,

Now that I am starting to have time to devote on this port again, 
I started to look into the HPMC crash when doing a cpio from the 
scsi cdrom drive to a hard drive again.  I origionally tried to
debug the problem using printk statements in the ccio code, and
John Marvin helped me identify a problem I was experiencing while
attempting to debug with printk's .

http://lists.parisc-linux.org/pipermail/parisc-linux/2001-May/012579.html

Now I am trying to debug the problem using a different approach 
that does not use printk statements.  The HPMC is extremely
reproducable, and the IAOQ always points to the _gsc_readl
function and GR 2 always points to the dino_in32 function as 
the _gsc_readl function caller.

This is the instruction that causes the HPMC (IAOQ address - 8):
	ldwa  r0(r26),r26

Looking up the value of GR26 from the register dump gives me random
addresses.  The last three addresses I recorded using this kernel are:

	GR26: 0x00ff9000
	GR26: 0x002e8800
	GR26: 0x000a1000

My (limited) understanding of appropriate values for an address
being passed to the _gsc_readl function would be an I/O address,
which is >= 0xf0000000.  If my understanding is correct, then the
C200+ is properly HPMC'ing because of the invalid I/O address.

To verify my assumptions about the bad value in the GR26, I added
a global variable rbrad_debug to the dino.c code which will save 
the value off in memory (since I can not use printk :() the address 
value being passed to _gsc_readl from the dino_in32 function and 
use the ser mr <addr> [len] of the pdc to read the contents of
the rbrad_debug variable after the machine had HPMC'd.

Doing this gave me unexpected results also. (The results did not
match GR26 and they were not always >= 0xf0000000).  So I made
rbrad_debug an array of u32 and set known values in array indexes
0, 2, and 4 and used array indexes 1 and 3 to store the addresses
being written by gsc_writel (I stored this value for curiosity sakes) 
and gsc_readl.  If the known addresses were present in the the proper
index of the array, then it would increase my trust in the values being
returned in the unknown indexes.

To my surprise, I am not getting the expected values back even in the
known indexes when I do the ser mr <addr> 5 in the boot menu after the
HPMC.

This leaves me to consider two things:
	1. Am I using the ser mr <addr> len incorrectly?

	I grabbed the address from the system map and in this case:
	102db05c D rbrad_debug

		Main Menu: Enter command > ser mr 0x102db05c 5

   		0x102db05c  3fa276cd  5faa1b4c  7f44ed9a  bf543698  
   		0x102db06c  fe89db34  


	Next I though of getting rid of the 0x10000000 since that is
	where I believe we relocate the kernel to in vm.
	
		Main Menu: Enter command > ser mr 0x002db05c 5

		0x002db05c  0fc1bc54  f97e75b0  1f8378a8  f2fceb60  
		0x002db06c  3f06f150  

	Index 0, 2, and 4 should all be 0 if I were going to trust
	these values.

	2. Is memory getting stomped again like it did before when
	I was trying to debug using printk statements.

	Two things kinda indicate this is happening again to me (but
	I could also be mis-reading the results).
		a. I am not getting the known results back in the
		   indexes I expected.

		b. The address present in the IAOQ is not present in
		   the stack trace that is dumped.  The IAOQ value is:
		
			IAOQ: 102200d0 102207e4	

		and this is the stack dump range:

			Dumping Stack from 10320000 to 10320a40:

		running the astk command from the build-tools also does
		not show the dino_in32 or the _gsc_readl addresses in
		the stack trace either.

I have a bunch of files saved off in ~rbrad on p.e.h.c for people to look
at if they are interested.  I'm not going to attach them to this email 
since I (appropriately) got spanked last time for doing that :).   If people
do not have access to p.e.h.c and would like to get a copy of the files,
send me private email (rbradetich@uswest.net), and we can arrange a 
method to get the files for you.

The files on p.e.h.c/~rbrad are:
	vmlinux - The kernel used for the c200.log
	System.map - The System.map for the vmlinux kernel
	dino.patch - My patch to dino.c which addes rbrad_debug
	c200.log - The entire console log of the HPMC including:
		- Commands used to create the HPMC
		- The Stack Trace and register dump
		- The results from the ser mr commands
		- and the PIM dump for the HPMC

Hopefully this provides enough information for people interested in helping
debug the problem, if it doesn't let me know what additional information
you need and I will working on getting the information to you.

Thanks!

- Ryan

-- 




From - Thu Nov 08 21:18:29 2018
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From: "CARSON,KEVIN (HP-Canada,ex1)" <kevin_carson@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] LOOP_CLR_FD on 735
Date: Fri, 13 Jul 2001 13:30:01 -0400
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Hi!

I've been trying the latest releases on various workstations I have access
to.

Two of the machines are a B180L and a 735.  The B180L installs with the
0.9.1 CD.   When I try the 735 with 0.9.1 or 0.9.2 I get the message

	ioctl: LOOP_CLR_FD: No such device or address

at the point where the Rescue Floppy is being installed from floppy images
off of the CD into the Linux system partition, it just sits there.  I
believe I saw a similiar message with the B180L but it flicked past too fast
for me to read the entire message.

Both machines are being installed via the serial console.

I've seen that there is another report of a 735 running at ESIEE but that
was a "735/B"; this is probably the 735/125 instead of a 735/99 that I'm
running.

Any suggestions?  What is this message?  Anything you want me to try?

Cheers,

Kevin Carson





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From: "Yan Han" <yhan@uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Palo not running -- "Installing Pa-risc linux problem"
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Xref: news.gmane.org gmane.linux.ports.parisc:11629

We came across a question of following the instrustuion in "INstalling
pa-risc linux" (www.parisc-linux.org/software/install.html". in
Step 8  "Initialize the boot loader (roughly equivalent to lilo): *** NOTE
*** change both '3's in the following command to use your partition number
		$ palo -k /boot/vmlinux -b /boot/iplboot \
			-c '3/boot/vmlinux TERM=linux HOME=/ root=/dev/sda3' \
			-I /dev/sda

"

Question 1 : After booting up from network, we logged in serial console and
palo is not in HP box.
so we copied palo from the NFS server into the NFS directory so that the HP
box can "see it" . However, it cannot run "palo". ( we think that palo is
compiled under intel chip, and don't like the HP's Risc CPU).
2. We tried to compile "palo" again in HP box, but we cannot compile it?

any idea about this,







From - Thu Nov 08 21:18:30 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] problem activating the optional lan card on 712/80 with 0.9-32serial
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Xref: news.gmane.org gmane.linux.ports.parisc:11630

Hi Holger,

I think the main problem why the second lan card didn't worked was, that
both - the first and the second card - tried to register the "eth0" device 
name.
I just committed the following patch and it should fix your problem.

Greetings,
Helge

RCS file: /home/cvs/parisc/linux/drivers/gsc/lan.c,v
retrieving revision 1.9
diff -u -r1.9 lan.c
--- lan.c       2001/07/09 02:34:02     1.9
+++ lan.c       2001/07/13 18:39:32
@@ -43,19 +43,16 @@
 
        printk(KERN_INFO "Found i82596 at 0x%p, IRQ %d\n", d->hpa, irq);
 
-       netdevice = kmalloc(sizeof(*netdevice), GFP_KERNEL);
+       netdevice = alloc_etherdev(NULL,0);
        if (!netdevice)
-               return -ENOMEM;
+               return -ENOMEM;
 
-       memset(netdevice, 0, sizeof(*netdevice));
-       strcpy(netdevice->name,"eth0");
        netdevice->base_addr = (unsigned long) d->hpa;
        netdevice->irq = irq;
        netdevice->init =
                (d->sversion == 0x72) ? asp_i82596_probe :lasi_i82596_probe;
 
-       retval = register_netdevice(netdevice);
-
+       retval = register_netdev(netdevice);
        if (retval) {
                printk(KERN_WARNING __FILE__ ": register_netdevice ret'd %d\n", retval);
                kfree(netdevice);


On Friday 13 July 2001 12:03, Holger Zessel wrote:
> Hi all,
>
> did anybody manage to activate the optional lan card in the 712 ??
>
> As far as I know the normal prefab kernel on one of the iso images
> should work. And according to the website the card should be supported.
> I installed the 0.9-32serial and everything was fine so far.
>
> The boot messages show that the kernel sees the card but registering
> the card as a networkdevice seems to be the problem.
>
> I remembered that at least 2.2 kernels needed a commandline option
> e.g   ether=0,0,eth1   to enable an additional lancard and
> experimented with the command line but have not been able to find
> sufficient info or to see any effect on the behavior.
>
> Crucial seem to be the following lines (full dmesg output is further
> below):
>
> 4. Gecko 80 Core Lan (802.3) (10) at 0xf0107000, versions 0x1c, 0x0, 0x8a,
> 0x0, 0x0 ...
> 12. Gecko Optional Lan (802.3) (10) at 0xf0507000, versions 0x18, 0x0,
> 0x8a, 0x0, 0x0 ...
> Found i82596 at 0xf0107000, IRQ 87
> early initialization of device eth0 is deferred
> Found i82596 at 0xf0507000, IRQ 119
> early initialization of device eth0 is deferred
> lan.c: register_netdevice ret'd -17
> Warning : device (10, 0x18, 0x0, 0x8a, 0x0) NOT claimed by Lasi i82596 LAN
> 712, 715 or similiar
>
>
> The card was working fine on HP-UX 10.20 and currently it is not connected
> to a hub but that does not make a difference in the behavior.
>
> Questions:
>    - Any bugs / caveats known ??
>    - cmdline options needed here evtly ??
>
>
> Thanks in advance for feedback,
> best regards,
> Holger
>
>
>
> Full dmesg output:
>
>
> Linux version 2.4.0-pa10 (root@slab) (gcc version 3.0 20010315
> (prerelease)) #1 Wed May 30 20:19:52 BST 2001 FP[0] enabled: Rev 1 Model 13
> The 32-bit Kernel has started...
> Determining PDC firmware type: Older Legacy Box
> setup_cmdline(0x65328,0x65328,0x0,0x0)
> PALO command line: 'root=/dev/sda2 HOME=/ TERM=linux console=ttyS0
> ether=eth1,0,0,0,0' PALO initrd 0-0
> model   00006010 00000481 00000000 00000000 7816e9c5 00000000 00000004
> 00000072 00000072 vers    0000000b
> CPUID   vers 0 rev 0
> model   9000/712
> Total Memory: 64 Mb
> initrd: 00000000-00000000
> pagetable_init
> On node 0 totalpages: 16384
> zone(0): 16384 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> Searching for devices...
> Found devices:
> 1. Gecko 80 GSC Core Graphics (10) at 0xf8000000, versions 0x1c, 0x0, 0x85,
> 0x0, 0x0 2. Gecko 80 Core BA (11) at 0xf0100000, versions 0x1c, 0x0, 0x81,
> 0x0, 0x0 3. Gecko 80 Core SCSI (10) at 0xf0106000, versions 0x1c, 0x0,
> 0x82, 0x0, 0x0 4. Gecko 80 Core Lan (802.3) (10) at 0xf0107000, versions
> 0x1c, 0x0, 0x8a, 0x0, 0x0 5. Gecko 80 Core RS-232 (10) at 0xf0105000,
> versions 0x1c, 0x0, 0x8c, 0x0, 0x0 6. Gecko 80 Core Centronics (10) at
> 0xf0102000, versions 0x1c, 0x0, 0x74, 0x0, 0x0 7. Gecko 80 Audio (10) at
> 0xf0104000, versions 0x1c, 0x0, 0x7b, 0x0, 0x0 8. Gecko 80 Core PC Floppy
> (10) at 0xf010a000, versions 0x1c, 0x0, 0x83, 0x0, 0x0 9. Gecko 80 Core PC
> Keyboard (10) at 0xf0108000, versions 0x1c, 0x0, 0x84, 0x0, 0x0 10. Gecko
> 80 Core PC Keyboard (10) at 0xf0108100, versions 0x1c, 0x0, 0x84, 0x0, 0x0
> 11. Gecko 80 Core BA (11) at 0xf0500000, versions 0x1c, 0x0, 0x81, 0x0, 0x0
> 12. Gecko Optional Lan (802.3) (10) at 0xf0507000, versions 0x18, 0x0,
> 0x8a, 0x0, 0x0 13. Gecko Optional RS-232 (10) at 0xf0505000, versions 0x18,
> 0x0, 0x8c, 0x0, 0x0 14. Gecko 80 (712/80) (0) at 0xfffbe000, versions
> 0x601, 0x0, 0x4, 0x0, 0x81 15. Gecko 80 (1) at 0xfffbf000, versions 0x38,
> 0x0, 0x9, 0x0, 0x0
> That's a total of 15 devices.
> CPU(s): 1 x PA7100LC (PCX-L) at 80.000000 MHz
> Kernel command line: root=/dev/sda2 HOME=/ TERM=linux console=ttyS0
> ether=eth1,0,0,0,0 Calibrating delay loop... 79.66 BogoMIPS
> Memory: 62272k available
> Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
> Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
> Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
> Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
> POSIX conformance testing by UNIFIX
> Lasi version 0 at 0xf0100000 found.
> Lasi version 0 at 0xf0500000 found.
> Initializing Lasi PS/2-keyboard port at 0xf0108000...
> Support for Lasi PS/2-psaux not yet available !
> Found i82596 at 0xf0107000, IRQ 87
> early initialization of device eth0 is deferred
> Found i82596 at 0xf0507000, IRQ 119
> early initialization of device eth0 is deferred
> lan.c: register_netdevice ret'd -17
> Warning : device (10, 0x18, 0x0, 0x8a, 0x0) NOT claimed by Lasi i82596 LAN
> 712, 715 or similiar Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Starting kswapd v1.8
> pty: 256 Unix98 ptys configured
> request_module[parport_lowlevel]: Root fs not mounted
> lp: driver loaded but no devices found
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> eth0: 82596 at 0xf0107000, 08 00 09 5C 55 1E IRQ 87.
> 82596.c $Revision: 1.18 $
> Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ
> SERIAL_PCI enabled ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
> ttyS01 at iomem 0xf0505800 (irq = 122) is a 16550A
> Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
> parport_init_chip: initialize bidirectional-mode.
> parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
> lp0: using parport0 (interrupt-driven).
> SCSI subsystem driver Revision: 1.00
> sim700: Configuring 53c710 (SCSI-ID 7) at f0106100, IRQ 86, options 0
> scsi0: Revision 0x2
> Post test1, istat 01, sstat0 00, dstat 84
> sim700: WARNING IRQ probe failed, (returned 0)
> scsi0: Good, target data areas are dma coherent
> scsi0: test 1 completed ok.
> scsi0 : LASI/Simple 53c7xx
>   Vendor: SEAGATE   Model: ST32550N          Rev: HP09
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Detected scsi disk sda at scsi0, channel 0, id 4, lun 0
> SCSI device sda: 4165272 512-byte hdwr sectors (2133 MB)
> Partition check:
>  sda: sda1 sda2 sda3
> md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
> md.c: sizeof(mdp_super_t) = 4096
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 4096 bind 8192)
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> VFS: Mounted root (ext2 filesystem) readonly.
> Adding Swap: 204592k swap-space (priority -1)
> eth0: link ok.




From - Thu Nov 08 21:18:30 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] TODO list
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Xref: news.gmane.org gmane.linux.ports.parisc:11631

Here's some things which need to get fixed, courtesy of Alan Cox:

 * Documentation/parisc/unwritten appears out of date

 * cache_init wants some printk DEBUG levels adding
   [In general grep printk(\" is useful to check]

 * arch/parisc/kernel/irq.c has an unchecked kmalloc around line 550.

 * led_get_net_stats() is interrupt-unsafe.

 * ptrace is chock-full of intrusive debug code.  either remove it or
   macroise it.

 * smp_call_function has problems:
	If the calling thread is real time it wont yield - you need to use
	a timeout

	How do we handle IPI failures or retransmits?

 * Why does the superio driver BUG and thus oops rather than printking an
   error and continuing without that driver ?

 * binfmt_som still uses the old strlen_user and needs revisiting to solve
   DoS issues

 * extern asmlinkage long sys32_sysctl(struct __sysctl_args32 *args) is
   a little strange.  Also shouldnt oldlen32 be unsigned ?

-- 
Revolutions do not require corporate support.




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From: Paul Bame <bame@riverrock.org>
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Subject: Re: [parisc-linux] Palo not running -- "Installing Pa-risc linux problem"
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To: "Yan Han" <yhan@uwo.ca>
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In-Reply-To: Your message of "Fri, 13 Jul 2001 14:50:35 EDT."
             <001101c10bcc$b3559990$d10c6481@HCI009> 
Xref: news.gmane.org gmane.linux.ports.parisc:11632

> We came across a question of following the instrustuion in "INstalling
> pa-risc linux" (www.parisc-linux.org/software/install.html". in
> Step 8  "Initialize the boot loader (roughly equivalent to lilo): *** NOTE
> *** change both '3's in the following command to use your partition number
> 		$ palo -k /boot/vmlinux -b /boot/iplboot \
> 			-c '3/boot/vmlinux TERM=linux HOME=/ root=/dev/sda3' \
> 			-I /dev/sda
> "

Palo should have been run as part of the Debian install process and you
should have an /etc/palo.conf.  If you are installing by hand you have more
work to do...

> Question 1 : After booting up from network, we logged in serial console and
> palo is not in HP box.
> so we copied palo from the NFS server into the NFS directory so that the HP
> box can "see it" . However, it cannot run "palo". ( we think that palo is
> compiled under intel chip, and don't like the HP's Risc CPU).

The Debian package for palo is on the CD and in the Debian mirror system.

> 2. We tried to compile "palo" again in HP box, but we cannot compile it?
> any idea about this,

Please use the Debian package.  You can install the Debian package from
the CD with 'dpkg --install palo_<version>.deb'.

If you want help compiling palo please send the output from 'make'.

	-Paul




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HD not bootable after installation....
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To: "Pedot, Wolfgang" <wpedot@harris.com>
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In-Reply-To: Message from "Pedot, Wolfgang" <wpedot@harris.com> 
   of "Fri, 13 Jul 2001 06:14:02 EDT." <8D4C69676E66D511A1CB00508BBBB19216268C@ranmx1.ran.harris.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:11633

"Pedot, Wolfgang" wrote:
...
> After installing an other Harddisk the installation
> went fine but for some reason this new Harddisk is not bootable
> (Palo was executed successfully), its not in the list of bootable
> devices at startup and if i select it manualy it fails to boot.
> But after booting from network the disk is detected. Since this harddisk
> was in a PC before I wonder if theres anything
> I may have forgotten...

Perhaps. To add/remove jumpers on the HD to enable "Auto-Spinup"?
You need a spec sheet for the HD to figure out which jumpers those are.
If you only have 1 or 2 HDs, it's better to disable "Spinup Delay".

PC BIOS (or scsi controller Expansion ROM) and Linux SCSI drivers 
are smart enough to send a "Start Unit" cmd to spin up the disk.
PDC on most (all?) parisc workstations is not. I don't think the
servers are any smarter but don't know for sure.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:18:30 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] help debuging HMPC
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In-Reply-To: Message from rbrad@beavis.ybsoft.com (Ryan Bradetich) 
   of "Fri, 13 Jul 2001 11:01:10 MDT." <20010713110110.A9795@beavis.ybsoft.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:11634

Ryan Bradetich wrote:
> Hello parisc-linux hackers,
> 
> Now that I am starting to have time to devote on this port again, 
> I started to look into the HPMC crash when doing a cpio from the 
> scsi cdrom drive to a hard drive again.
...

I don't know what the problem is but I can help clarify some
of the issues below.

...
> This is the instruction that causes the HPMC (IAOQ address - 8):
> 	ldwa  r0(r26),r26

Given the IOAQ data below, I'm pretty sure GR26 is garbage.

Anyway, the IO port address is most likely still in GR24
since it's the third arg to dino_inX. The call to gsc_readX
won't (shouldn't) clobber that.


> My (limited) understanding of appropriate values for an address
> being passed to the _gsc_readl function would be an I/O address,
> which is >= 0xf0000000.  If my understanding is correct, then the
> C200+ is properly HPMC'ing because of the invalid I/O address.

That's right.
The arg to gsc_readX should be the address of Dino's PCI_DATA register.
That's what generates the IO Port cycle.

> To my surprise, I am not getting the expected values back even in the
> known indexes when I do the ser mr <addr> 5 in the boot menu after the
> HPMC.

That was a good idea!

> 	I grabbed the address from the system map and in this case:
> 	102db05c D rbrad_debug
> 
> 		Main Menu: Enter command > ser mr 0x102db05c 5

a500 console boot output shows:
| Segment 0 load 00100000 size 2163856 mediaptr 0x1000
| Segment 1 load 00312000 size 472144 mediaptr 0x212000
| Segment 2 load 00388000 size 302608 mediaptr 0x286000
| Segment 3 load 003d4000 size 16384 mediaptr 0x2d0000
| branching to kernel entry point 0x00100000

Not sure how to form the proper address from System.map.
I'd guess subtract 0x00100000?

> 		b. The address present in the IAOQ is not present in
> 		   the stack trace that is dumped.  The IAOQ value is:
> 		
> 			IAOQ: 102200d0 102207e4	

Do these values mean the CPU was branching?
Normally I expect them to be +4 apart.
But it suggests we executed the ldwa insn and trashed GR26
before the HPMC was recorded.

> 		and this is the stack dump range:
> 
> 			Dumping Stack from 10320000 to 10320a40:

The stack is just a temporary storage space for code to save registers.
IOAQ reflects the state of the CPU and has nothing to do with stack.

> 		running the astk command from the build-tools also does
> 		not show the dino_in32 or the _gsc_readl addresses in
> 		the stack trace either.

right - only time you'll see a function address (which was part
of the call chain) is when GR02 gets saved.
gsc_readX is a "leaf" routine and thus doesn't save GR02.
The last thing on the stack should be the caller to dino_inX().

> I have a bunch of files saved off in ~rbrad on p.e.h.c for people to look
> at if they are interested.

I'll take a look and see if anything obvious pops up...

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] TODO list
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Xref: news.gmane.org gmane.linux.ports.parisc:11635

Removing the ones which are fixed (or found to be not-bugs) leaves:

>  * Documentation/parisc/unwritten appears out of date

Grant has this one in progress.

>  * cache_init wants some printk DEBUG levels adding
>    [In general grep printk(\" is useful to check]

Helge in progress.

>  * led_get_net_stats() is interrupt-unsafe.

Helge in progress.

>  * ptrace is chock-full of intrusive debug code.  either remove it or
>    macroise it.
> 
>  * Why does the superio driver BUG and thus oops rather than printking an
>    error and continuing without that driver ?

-- 
Revolutions do not require corporate support.




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From: Reinhard Gimbel <Reinhard.Gimbel@freenet.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] palinux-0.9.2: XFree on C180 [GRAPHICS(3)] ?
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Hi folks !

If I get my C180 up'n'running (see an other post to this 
mailing list) I would like to know if there is a chance to get 
XFree running on the secondary graphics port [GRAPHICS(3)] ?

Because I don't have an original HP monitor (with that special 
connector) nor an adapter to an ordinary PC-style monitor 
(15pin MinD) I have to use the secondary graphics port of my 
C180 (seems to be an EISA graphics card; not yet disassembled 
my box :-)

Further more I don't have HIL keyboard and mouse so I have to 
use PS/2 keyboard and mouse. But this seems to be no problem 
(according some information one could read on the net and my 
experience so far).

The boot of the palinux-0.9.2 image via GRAPHICS(3) results in 
a blue screen (luckily not the one we know from M$ products 
:-), but at least the keyboard input seems to work up to this 
point.

Again: Will I/we get XFree running on the C180 ?

Any idea ?

THX !

Reinhard.




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Subject: [parisc-linux] palinux-0.9.2: Installation fails on C180
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Xref: news.gmane.org gmane.linux.ports.parisc:11637

Hi folks !

Recently I bought an C180 at a local 2nd hand computer store. 

I tried to install the latest palinux-0.9.2 (esiee.fr), but the 
installation failed :-(

The download itself went ok (md5sums ok), no probs while 
burning the ISO image (using xcdrgtk). The C180 boots from the 
CD-R, the system can be set up (HD partitioning, creating the 
ext2 filesystems, etc.) but during heavy traffic on the SESCSI 
bus the system crashes (sometime during kernel installation, 
sometimes during base system installation).

I double-checked the hardware (cables, termination, also 
replaced the CD-R drive by another one).

In the log file (minicom log from my Intel-Linux box) I could 
find the following lines which may be could give a hint what's 
going on (or even not ...). Furthermre you can find the 
postmorted registerdump:

[...]

Dino version 2.1 (bridge mode) found at 0xf2000000
 
 
The GSCtoPCI (Dino hrev 1) bus converter found may exhibit
data corruption.  See Service Note Numbers: A4190A-01, 
A4191A-01.
Systems shipped after Aug 20, 1997 will not exhibit this 
problem.
Models affected: C180, C160, C160L, B160L, and B132L 
workstations.
 
dino_bridge_init: IO_ADDR_EN hasn't been configured.
kernel BUG at dino.c:808!

[...]

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111100100001110
r0-3     00000000 102b2810 101c97cc 1f7a3a00
r4-7     1f7a3a28 00000006 00000000 00000000
r8-11    1f7a2000 000000ff 1fe02a74 00000200
r12-15   102b2810 00000001 00000400 1f584688
r16-19   1f584588 00000000 00000000 dae998dc
r20-23   00000008 1e1fc500 00000000 0000000f
r24-27   00000000 00000006 1f7a2000 1028a010
r28-31   00000000 00000400 1f584dc0 101bd938
sr0-3    00000000 000000b5 00000000 000000b5
sr4-7    00000000 00000000 00000000 00000000
 
IASQ: 00000000 00000000 IAOQ: 101d3004 101d3008
 IIR: 0e641288    ISR: 00000000  IOR: dae998e0
 ORIG_R28: 1073e740

[...]

I do not know when my maschine was shipped (as I wrote above 
it's a used one).

Because the STI installation did not lead to any success 
currently I'm using serial_1 as the boot console.

I do not have much knowledge from HP workstations (but some 
knowledge from older SUN workstations, much VME-bus knowledge 
[older Motorola-CPUs], much Intel-PC knowledge)

Has anybody outthere an idea ?

Many thanks in advance for your help !

Reinhard.




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You have been invited to check out this adult site
by one of your friends who visited us.

our URL is http://www.openxxx.net/
enjoy,
OpenXXX TEAM 2001






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Subject: [parisc-linux] Install on a 715/50 (wont boot)
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Hello all, 
I've been following posts watching the port mature. 
 I d/led the .9.2 install.iso and it doesn't boot, I'm using a Toshiba
external cdrom from my SS10.
715/50 48 megs, 2x 540meg drives. HP Unix died on these drives after a
hardboot and no media to reinstall. 

I chose boot p2 (cdrom drive) and I get Failed to Initalize SCSI 2.0.0
and then several neat rows of hex. 
 Could it be the drive isn't compatible or am I doing something else
wrong. 
thanks 
Terry



Achilles' Biological Findings:
        (1) If a child looks like his father, that's heredity.  If he
            looks like a neighbor, that's environment.
        (2) A lot of time has been wasted arguing over what came first
            -- the chicken or the egg.  It was undoubtedly the
            rooster.








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I know this sounds like a stupid question, but whats the proper syntax for
setting the date via boot admin, I've checked docs.hp.com and tried every
imaginable syntax to no avail. 
Thanks again, 
Terry



Achilles' Biological Findings:
        (1) If a child looks like his father, that's heredity.  If he
            looks like a neighbor, that's environment.
        (2) A lot of time has been wasted arguing over what came first
            -- the chicken or the egg.  It was undoubtedly the
            rooster.







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Hello parisc-linux,

  i found the HP 715-33 on the following list:
  These systems currently have problems or lack hardware specific support
  to make them fully functional

  and i wonder if this system is supported or not. If it is not supported,
  do you need a 715-33 ? If there is a developer (in germany) interested
  in such a System i could offer such a machine.

-- 
Best regards,
 Michael                          mailto:Michael_Handrich@gmx.de





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On Sat, Jul 14, 2001 at 12:20:00AM -0600, Grant Grundler wrote:

> > This is the instruction that causes the HPMC (IAOQ address - 8):
> > 	ldwa  r0(r26),r26
> 
> Given the IOAQ data below, I'm pretty sure GR26 is garbage.
> 
> Anyway, the IO port address is most likely still in GR24
> since it's the third arg to dino_inX. The call to gsc_readX
> won't (shouldn't) clobber that.

Just a quick clarification:

I macro expanded dino_in32 into this:
	static u32 dino_in32 (struct pci_hba_data *d, u16 addr);

dino_in32 only takes two arguments, so I should check GR25 and manually
perform the calculations in the dino_in32 to get the proper address
passed to the _gsc_readl function, correct?  


> The stack is just a temporary storage space for code to save registers.
> IOAQ reflects the state of the CPU and has nothing to do with stack.

Doh .. ok.  This makes sense to me now. *sigh*

> > 		running the astk command from the build-tools also does
> > 		not show the dino_in32 or the _gsc_readl addresses in
> > 		the stack trace either.
> 
> right - only time you'll see a function address (which was part
> of the call chain) is when GR02 gets saved.
> gsc_readX is a "leaf" routine and thus doesn't save GR02.
> The last thing on the stack should be the caller to dino_inX().

This also make sense to me.  Thanks for your time and explaination Grant!

- Ryan

> grant
> 
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 

-- 




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From: Tom <tom@alaskatech.org>
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Subject: [parisc-linux] 715/100 no longer boots into console?
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So I upgraded from the 0.9 to the latest 0.91. Exerything worked nicely,
no errors, except now I get no login on the console. Looking over the boot
messages there's no errors, but there is two lines saying the FB is alive
and well and the console is switching to STI FB color console. Last
messages is after "INIT: switching to runlevel 2" and all the
"starting:..." messages (the last one is cron starting).

I *had* all the common pitfalls saved, until I had a drive crash in the
mail server and nuke all the saved mail :-(. So, if someone can tell me
the simple solution to this I'd appreciate it... If needed the output of
dmesg is at http://www.alaskatech.org/stuff/715boot.txt

Thanks!





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From: "T. Martin" <catfish@alltel.net>
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Kill this request, I got date set, but it still doesn't boot. 
gives error initilizing the cdrom drive. 

I've tried an NEC, Sony, and Toshiba all have failed. The toshiba is the
only drive I have doubts about being good. 

Terry

On Sun, 15 Jul 2001, T. Martin wrote:

> I know this sounds like a stupid question, but whats the proper syntax for
> setting the date via boot admin, I've checked docs.hp.com and tried every
> imaginable syntax to no avail. 
> Thanks again, 
> Terry
> 
> 
> 
> Achilles' Biological Findings:
>         (1) If a child looks like his father, that's heredity.  If he
>             looks like a neighbor, that's environment.
>         (2) A lot of time has been wasted arguing over what came first
>             -- the chicken or the egg.  It was undoubtedly the
>             rooster.
> 
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 






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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] setting up the STI console on a 735/99
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To: Matthieu Le Corre <matthieu.lecorre@polytech.univ-nantes.fr>
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On Fri, Jul 13, 2001 at 02:13:36PM +0200, Matthieu Le Corre wrote:
> Le Jeudi 12 Juillet 2001 20:52, vous avez crit :
> > So I have now succesfully installed the base system on a external narrow
> > SCSI. I can boot off of it. Now the next question is how do I set it up to
> > go to the STI console instead of the serial?
> >
> > Ray
> 
> try console=tty on palo commande line 
> 
> i try it, messages go on console but i get a "unable to open initial console"
> and back to serial to login !

I don't know whether linux supports graphical console on 735 yet.
You could try enabling a line in /etc/inittab to spawn a getty on
tty0, and see if you then get a login prompt.

Richard





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Xref: news.gmane.org gmane.linux.ports.parisc:11646

On Fri, Jul 13, 2001 at 01:30:01PM -0400, CARSON,KEVIN (HP-Canada,ex1) wrote:
> Hi!
> 
> I've been trying the latest releases on various workstations I have access
> to.
> 
> Two of the machines are a B180L and a 735.  The B180L installs with the
> 0.9.1 CD.   When I try the 735 with 0.9.1 or 0.9.2 I get the message
> 
> 	ioctl: LOOP_CLR_FD: No such device or address
> 
> at the point where the Rescue Floppy is being installed from floppy images
> off of the CD into the Linux system partition, it just sits there.  I
> believe I saw a similiar message with the B180L but it flicked past too fast
> for me to read the entire message.

That message relates to the installer doing a loopback mount of
the rescue image.  Havn't looked at what the installer is doing to
trigger it, but it should not be causing your problem.

Richard





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From: Matthieu Le Corre <matthieu.lecorre@polytech.univ-nantes.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] setting up the STI console on a 735/99
Date: Mon, 16 Jul 2001 11:46:53 +0200
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Le Lundi 16 Juillet 2001 09:53, vous avez crit :
> On Fri, Jul 13, 2001 at 02:13:36PM +0200, Matthieu Le Corre wrote:
> > Le Jeudi 12 Juillet 2001 20:52, vous avez crit :
> > > So I have now succesfully installed the base system on a external
> > > narrow SCSI. I can boot off of it. Now the next question is how do I
> > > set it up to go to the STI console instead of the serial?
> > >
> > > Ray
> >
> > try console=tty on palo commande line
> >
> > i try it, messages go on console but i get a "unable to open initial
> > console" and back to serial to login !
>
> I don't know whether linux supports graphical console on 735 yet.
> You could try enabling a line in /etc/inittab to spawn a getty on
> tty0, and see if you then get a login prompt.

i get it !
but i get a "unable to open initial console"
console seem to work because i get the whole message to the console ....
it's a shame that i get this "unable to open initial console"

>
> Richard

-- 
_________________________________________________
  
                    Matthieu Le Corre
                  Service informatique
   Ecole Polytechnique de l'Universit de Nantes
      Matthieu.Lecorre@polytech.univ-nantes.fr
                     02.40.68.32.23
__________________________________________________




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] help debuging HMPC
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In-Reply-To: Message from rbrad@beavis.ybsoft.com (Ryan Bradetich) 
   of "Sun, 15 Jul 2001 21:31:57 MDT." <20010715213157.A13729@beavis.ybsoft.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:11648

Ryan Bradetich wrote:
> Just a quick clarification:
> 
> I macro expanded dino_in32 into this:
> 	static u32 dino_in32 (struct pci_hba_data *d, u16 addr);
> 
> dino_in32 only takes two arguments, so I should check GR25 and manually
> perform the calculations in the dino_in32 to get the proper address
> passed to the _gsc_readl function, correct?  

Erm, right...dino_outX takes three...but the address is the second arg
and should be found in GR25 too. ATM, I can't explain why I found the
IO port address in GR24 when debugging a PCI problem on the A500.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HD not bootable after installation....
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In-Reply-To: Message from "Pedot, Wolfgang" <wpedot@harris.com> 
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"Pedot, Wolfgang" wrote:
> Well, the HD has a Jumper called "Auto Start" which is set. Without that
> jumper set the HD doesnt spin up. The only Jumpers set now are ID,
> AutoStart and Termination Power. There are others to but I have no Idea
> what they mean..
> 
> Option Block Mode
> Disable T.I. Sync Negotiations
> Disable Unit Attention
> 
> Any Ideas?

sorry - forgot about TI Sync jumper - you want that disabled
for workstations...I think servers are ok with having enabled (no jumper).

"Target Initiated Synchronous Negotiations" is when the Target device
(eg drive) realizes it doesn't have an agreement with the Initiator
(eg host controller) about how fast to send "synchronous" data (SDTR).
Even though the SCSI protocol allows this, older products didn't
do this and the PDC didn't need to (and can't) handle it.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: "Pedot, Wolfgang" <wpedot@harris.com>
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Subject: RE: [parisc-linux] HD not bootable after installation....
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Thanks! My System now boots perfectly from HD and Network.
The only disturbing thing is that the new HD is making terrible noise =
:)

greetings
Wolfgang


> "Pedot, Wolfgang" wrote:
> > Well, the HD has a Jumper called "Auto Start" which is set. Without =
that
> > jumper set the HD doesn=B4t spin up. The only Jumpers set now are =
ID,
> > AutoStart and Termination Power. There are others to but I have no =
Idea
> > what they mean..
> >=20
> > Option Block Mode
> > Disable T.I. Sync Negotiations
> > Disable Unit Attention
> >=20
> > Any Ideas?
>=20
> sorry - forgot about TI Sync jumper - you want that disabled
> for workstations...I think servers are ok with having enabled (no =
jumper).
>=20
> "Target Initiated Synchronous Negotiations" is when the Target device
> (eg drive) realizes it doesn't have an agreement with the Initiator
> (eg host controller) about how fast to send "synchronous" data =
(SDTR).
> Even though the SCSI protocol allows this, older products didn't
> do this and the PDC didn't need to (and can't) handle it.
>=20
> grant
>=20
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253




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In message <20010713190310.95C7A482A@dsl2.external.hp.com>Helge Deller writes

> Hi Holger,
> 
> I think the main problem why the second lan card didn't worked was, that
> both - the first and the second card - tried to register the "eth0" device 
> name.

Hi Helge,

thanks.  Actually it makes me angry somewhat that I did not yet have
the time to look into the kernel sources myself so far.
Even I would have found the constant 'eth0' string. :-))
Though I definitely would not have been able to create a solution so far.

What makes me confused is that the card is 'supported' according to
the hw list but apparently this part of the code was not even designed
to support more than one card at all. How can this be if the code
PALINUX-2.4 started with was official 2.4 code which of course 
supported more than one lancard ?? 
Perhaps I just miss pieces of the picture here...

Since I have no time to setup a devel. environment
can you please sent me a kernel to test it ?? Regrettably you don't seem to 
be with HP otherwise I could give you access to my gecko for testing.
Do you have a system to test this on ??

regards,
Holger






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In-Reply-To: Message from Matthew Wilcox <willy@debian.org> 
   of "Fri, 13 Jul 2001 20:10:08 BST." <20010713201008.Q3048@parcelfarce.linux.theplanet.co.uk> 
Xref: news.gmane.org gmane.linux.ports.parisc:11652

Matthew Wilcox wrote:
> 
> Here's some things which need to get fixed, courtesy of Alan Cox:
> 
>  * Documentation/parisc/unwritten appears out of date

Here's what I have so far. I'll try to finish revivewing the rest
tonight (or tomorrow) and submit bugs for what doesn't get done by the end
of the week.

grant


sys_idle	./include/asm-parisc/unistd.h:  return sys_idle();
	sys_idle() is obsolete - remove it.

reboot_setup()	arch/parisc/kernel/process.c - delete this function

machine_halt		NOP. needs someone else to review.
machine_power_on	obsolete - delete it

exit_thread		NOP
flush_thread		needs someone else to review

die
die_if_no_fixup		Do we need to export either of these?
			Don't think so. We have "die_if_kernel".

strlen_user	#define strlen_user(str) lstrnlen_user(str, 0x7fffffffL)
			Kind of klugy...is that ok?

do_check_pgt_cache	NOP. needs someone else to review.

set_pte_phys		orphaned? needs someone else to review.

ffz		./include/asm-parisc/bitops.h:extern __inline__ unsigned long ffz(unsigned long word)
		I think "static __inline__" is meant...


check_bugs	NOP. TBD.

I haven't looked at these yet:
csum_partial
csum_partial_copy
csum_partial_copy_generic
csum_partial_nocheck
csum_partial_copy_from_user
csum_tcpudp_nofold
csum_tcpudp_magic
sigaddset
sigdelset
get_cycles






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On Mon, Jul 16, 2001 at 06:29:34PM +0200, Holger Zessel wrote:
> What makes me confused is that the card is 'supported' according to
> the hw list but apparently this part of the code was not even designed
> to support more than one card at all. How can this be if the code
> PALINUX-2.4 started with was official 2.4 code which of course 
> supported more than one lancard ?? 

each network driver needs to support the ability to drive multiple cards.
i don't think anyone had tried a second network card in a gecko before.

-- 
Revolutions do not require corporate support.




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From: "Yan Han" <yhan@uwo.ca>
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Subject: [parisc-linux] complier -- regarding to "palo"
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Hi!

Continue with the same question of "palo" compile.

After the hp box boot up, we try to do step 8 Step 8  "Initialize the =
boot loader (roughly equivalent to lilo): *** NOTE
*** change both '3's in the following command to use your partition =
number
$ palo -k /boot/vmlinux -b /boot/iplboot \
-c '3/boot/vmlinux TERM=3Dlinux HOME=3D/ root=3D/dev/sda3' \
-I /dev/sda


We cannot get palo complied.=20
1. We later try to use gcc to compile a simple c file. but gcc doesn't =
work. (the screen is blank, nothing shows up).
2. We think there are something wrong with gcc.
3. is this a problem with nfsroot files?
4. where to get the right nfsroot file to make gcc work?

any idea,

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.3103.1000" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi!</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Continue with the same question of =
"palo"=20
compile.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>After the hp box boot up, we try to do =
step 8 Step=20
8&nbsp; "Initialize the boot loader (roughly equivalent to lilo): ***=20
NOTE<BR>*** change both '3's in the following command to use your =
partition=20
number<BR>$ palo -k /boot/vmlinux -b /boot/iplboot \<BR>-c =
'3/boot/vmlinux=20
TERM=3Dlinux HOME=3D/ root=3D/dev/sda3' \<BR>-I =
/dev/sda<BR><BR></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>We cannot get palo =
complied.&nbsp;</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>1. We later try to use gcc to compile a =
simple c=20
file. but gcc doesn't work. (the screen is blank, nothing shows=20
up).</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>2. We think there are something wrong =
with=20
gcc.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>3. is this a problem with nfsroot=20
files?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>4. where to get the right nfsroot file =
to make gcc=20
work?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial><FONT size=3D2>any =
idea,</FONT></DIV></FONT></BODY></HTML>

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From: "Yan Han" <yhan@uwo.ca>
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Subject: [parisc-linux] not supported by 0.9 version
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Hi! we tried to install 0.9 version in 715/33. It doesn't work.=20

so use "rbootd" to boot up the machine.

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<DIV><FONT face=3DArial size=3D2>Hi! we tried to install 0.9 version in =
715/33. It=20
doesn't work. </FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>so use "rbootd" to boot up the=20
machine.</FONT></DIV></BODY></HTML>

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From: "Yan Han" <yhan@uwo.ca>
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Subject: RE: [parisc-linux] Install on a 715/50 (wont boot)
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Hi!

We tried two external cdroms(IBM and Toshiba) to install .9 images, and
created 5 cd-Rs (memorex, verbertim, Sony, maxell). IBM (1 speed, actually
manufactured by Toshiba)  went further, but crashed at some point.

Forget 0.9 images, use 'rbootd' to boot up the machine.






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From: Clement MOYROUD <moyroudc@esiee.fr>
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Subject: [parisc-linux] 725/75 won't boot
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Hi all !                                                              
                                                                      
the ESIEE team just received a 725/75 from linuxcare, and when I tried
to make it boot palo issued a warning saying that the firmware doesn't
support PDC_MODEL_CAPABILITIES call. According to Paul Bame, this     
doesn't seem to be a palo issue, so i'm sending the TOC dump for you  
all hackers to see what's going on :                                  
                                                                      
General Registers:                                                    
                                                                      
00000000 00000000 1b1b1b1b 1b1b1b79 00020398 00200000 fffbf090        
00000089                                                              
fc4ff000 fc4ff000 00001000 001a5a59 001a5a59 000ff000 f000124c        
00000000                                                              
00000001 08000059 f0000694 00000000 00000000 00000001 00000000        
00006048                                                              
000b5a3c 000b5a44 00000000 00145008 000001b1 000000c0 000b46f0        
000b46f4                                                              
                                                                      
Control Registers:                                                    
                                                                      
00000000 00000000 00000000 00000000 00000000 00000000 00000000        
00000000                                                              
00000000 00000000 00000000 0000001e 00000000 00000000 000cc400        
00000000                                                              
38a073d5 00000000 1b1b1b1b 00000000 00000000 00000000 0000ff08        
80000000                                                              
00000800 f00000f0 ffffffcb ffffffff 0034183f 01234567 f0000694        
00067800                                                              
                                                                      
Space Registers:                                                      
                                                                      
00000000 00000000 00000000 00000000 00000000 00000000 00000000        
00000000                                                              
                                                                      
Instruction Address:                                                  
                                                                      
00000000 1b1b1b1b                                                     
                                                                      
        Check Type        = 0x20000000                                
        CPU State         = 0x9e000004                                
        Cache Check       = 0x00000000                                
        TLB Check         = 0x00000000                                
        Bus Check         = 0x00310007                                
        Assists Check     = 0x00000000                                
        Assist State      = 0x00000000                                
        System Responder Address = 0x1b1b1b18                         
        System Requestor Address = 0xfffbe000                         
        System Controller Status = 0x00000006                         
                                                                      
                                                                      
                                                                      
If you have a solution that would be great !                          
                                                                      
Clement Moyroud                                                       
Puffin ESIEE Team                                                     




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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] help debuging HMPC
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To: Grant Grundler <grundler@puffin.external.hp.com>
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On Mon, Jul 16, 2001 at 07:38:00AM -0600, Grant Grundler wrote:
> Ryan Bradetich wrote:
> > Just a quick clarification:
> > 
> > I macro expanded dino_in32 into this:
> > 	static u32 dino_in32 (struct pci_hba_data *d, u16 addr);
> > 
> > dino_in32 only takes two arguments, so I should check GR25 and manually
> > perform the calculations in the dino_in32 to get the proper address
> > passed to the _gsc_readl function, correct?  
> 
> Erm, right...dino_outX takes three...but the address is the second arg
> and should be found in GR25 too. ATM, I can't explain why I found the
> IO port address in GR24 when debugging a PCI problem on the A500.

I am confused about this also.

This is from the Documentation/parisc/registers file:

    r23-r26: these are arg3-arg0, i.e. you can use them if you
        don't care about the values that were passed in anymore.


this is from my latest register dump:

	r24-27   0000ff40 f2000064 040067f0 102ac010

The first thing that threw me was GR25 was obviously larger then the
u16 address being passed into dino_in32 function.  The other thing is
that value looks like a valid IO address.

I then checked to see how the values being passed to the gsc_writel 
function (I macro-expanded the function and pasted it here for easy 
reference):  

static u32 dino_in32 (struct pci_hba_data *d, u16 addr) 
{
	u32 v;
	unsigned long flags;

	spin_lock_irqsave(&(DINO_DEV(d)->dinosaur_pen), flags);

	/* tell HW which IO Port address */ \
	gsc_writel((u32) addr & ~3, d->base_addr + DINO_PCI_ADDR);

	/* generate I/O PORT read cycle */
	v = gsc_readl(d->base_addr+DINO_IO_DATA+(addr&0));

	spin_unlock_irqrestore(&(DINO_DEV(d)->dinosaur_pen), flags);
	return le32_to_cpu(v); \
}

The register value for GR24 looks to be a 16 bit value, and the value
for GR25 is the calculated value for d->base_addr + DINO_PCI_ADDR.

Dino version 3.1 (bridge mode) found at 0xf2000000
#define DINO_PCI_ADDR		0x064
#define DINO_IO_DATA		0x06c


So a couple of questions :)

1.  Is the HPMC really in the gsc_writel function and just not showing up
until the I/O port read cycle (gsc_readl function)?

2. Is the documentation correct for the resgister usage?

Thanks,

- Ryan

> grant
> 
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253
> 

-- 




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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] IDE patch
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The attached patch was applied to CVS yesterday. It enables the IDE and
USB config options for parisc if SuperIO support is selected. This is
just some preliminary infrastructure work. Much still needs to be done
and tested to get IDE to work.

Some notes:
- the changes to ns87415.c is optional. Most PCI-IDE drivers have
  irq14/15 hardcoded as defaults. the ide drivers tries these first,
  fails, and falls back to the default in asm-parisc/ide.h, which has
  the right value
- the patch needs more checking for whether probing can be done. right
  now it blindly probes if superio support is configured, irregardless
  of whether superio is enabled.
- only pio mode is enabled at the moment. I was told that some
  additional work needs to be done elsewhere before we can do bm-dma
- On my c3k it detects the CD-ROM drive fine, but mounting a CD-ROM
  gives a lot of { DriveReady SeekComplete Error } messages. I'm 
  investigating these at the moment.

comments, suggestions and constructive criticisms welcome as always :)

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


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--k1lZvvs/B4yU6o8G--




From - Thu Nov 08 21:18:32 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting 0.9.2 on C110
Date: Tue, 17 Jul 2001 09:47:28 +0100
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Cc: parisc-linux@lists.parisc-linux.org
To: "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Tue Jul 17 02:49:25 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:11660

On Fri, Jul 13, 2001 at 02:40:19PM +0200, Witvliet, Hans wrote:
> High all,
> 
> Just downloaded 0.9.2 image, burned it, and gave it a try on my C110.
> (should work afaik)
> For  the broad picture:
> C110, 256MB mem PS/2 keyboard & mouse, two lan interface, neither connected
> (yet) and no serial console)
> 
> Booting went well, switched to STI-console (nice tux  in upperleft corner)
> In a blink boot (cpu, mem, disks, lan) info flashed across the screen, and
> then, instead of login, a graphic screen with a general debian message that
> it is experimental software.

That is correct, you are about to install linux from CD, so you are seeing
the first screen of the installer output.

> After that the system seems to be frozen...

There are problems with the keyboard driver; for some people unplugging
the keyboard and this point and then plugging it in again clears the
problem.  I found that an old Compaq keyboard did not lock up at all.
You should be able to press <space> or <return> on that screen and get
the main menu of the installer displayed.

Richard





From - Thu Nov 08 21:18:32 2018
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From: "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Booting 0.9.2 on C110
Date: Tue, 17 Jul 2001 10:59:38 +0200
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To: 'Richard Hirst' <rhirst@linuxcare.com>,
	"Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
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Xref: news.gmane.org gmane.linux.ports.parisc:11661

Thanks Richard,

Tried it straight away, but no luck!
Neither keyboard or mouse unplug/replug, nor space, return, escape, ctrl-c,
ctrl-d or any function key seems to be noticed.
I'll try to find an other idle-hp-machine to see if i see the identical
behaviour....

Hans

> -----Original Message-----
> From:	Richard Hirst [SMTP:rhirst@linuxcare.com]
> Sent:	Tuesday, July 17, 2001 10:47 AM
> To:	Witvliet, Hans
> Cc:	parisc-linux@lists.parisc-linux.org
> Subject:	Re: [parisc-linux] Booting 0.9.2 on C110
> 
> On Fri, Jul 13, 2001 at 02:40:19PM +0200, Witvliet, Hans wrote:
> > High all,
> > 
> > Just downloaded 0.9.2 image, burned it, and gave it a try on my C110.
> > (should work afaik)
> > For  the broad picture:
> > C110, 256MB mem PS/2 keyboard & mouse, two lan interface, neither
> connected
> > (yet) and no serial console)
> > 
> > Booting went well, switched to STI-console (nice tux  in upperleft
> corner)
> > In a blink boot (cpu, mem, disks, lan) info flashed across the screen,
> and
> > then, instead of login, a graphic screen with a general debian message
> that
> > it is experimental software.
> 
> That is correct, you are about to install linux from CD, so you are seeing
> the first screen of the installer output.
> 
> > After that the system seems to be frozen...
> 
> There are problems with the keyboard driver; for some people unplugging
> the keyboard and this point and then plugging it in again clears the
> problem.  I found that an old Compaq keyboard did not lock up at all.
> You should be able to press <space> or <return> on that screen and get
> the main menu of the installer displayed.
> 
> Richard




From - Thu Nov 08 21:18:32 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] palinux-0.9.2: Installation fails on C180
Date: Tue, 17 Jul 2001 10:11:40 +0100
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To: Reinhard Gimbel <Reinhard.Gimbel@freenet.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:11662

On Sun, Jul 15, 2001 at 11:26:46AM +0200, Reinhard Gimbel wrote:
> 
> Hi folks !
> 
> Recently I bought an C180 at a local 2nd hand computer store. 
> 
> I tried to install the latest palinux-0.9.2 (esiee.fr), but the 
> installation failed :-(
> 
> The download itself went ok (md5sums ok), no probs while 
> burning the ISO image (using xcdrgtk). The C180 boots from the 
> CD-R, the system can be set up (HD partitioning, creating the 
> ext2 filesystems, etc.) but during heavy traffic on the SESCSI 
> bus the system crashes (sometime during kernel installation, 
> sometimes during base system installation).

I guess you are installing from CD on SESCSI, to disk on FWSCSI.
You could try to install from the network, so only the one scsi controller
is active.  See if that helps.  You could probably boot from the CD, then
tell the system to load everything via http or nfs, having exported the CD
contents from a suitable server.

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715/100 no longer boots into console?
Date: Tue, 17 Jul 2001 10:29:03 +0100
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To: Tom <tom@alaskatech.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:11663

On Sun, Jul 15, 2001 at 07:50:39PM -0800, Tom wrote:
> So I upgraded from the 0.9 to the latest 0.91. Exerything worked nicely,
> no errors, except now I get no login on the console. Looking over the boot
> messages there's no errors, but there is two lines saying the FB is alive
> and well and the console is switching to STI FB color console. Last
> messages is after "INIT: switching to runlevel 2" and all the
> "starting:..." messages (the last one is cron starting).
> 
> I *had* all the common pitfalls saved, until I had a drive crash in the
> mail server and nuke all the saved mail :-(. So, if someone can tell me
> the simple solution to this I'd appreciate it... If needed the output of
> dmesg is at http://www.alaskatech.org/stuff/715boot.txt

Presumably you logged in via the network to get that dmesg output,
so the machine is working ok.  Sounds like a frame buffer problem.
0.9 used STI console, 0.9.x uses STI frame buffer, if it is a chipset
it recognises.

When you say you upgraded from 0.9 to 0.91, what do you mean?  Did
you simply reinstall from the new .iso, or something else?  If you just
installed, how did you get to being able to read dmesg without console
access?

I assume your /etc/inittab is spawning a getty on tty0?

Maybe Helge can comment, if he reads this.

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] setting up the STI console on a 735/99
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On Mon, Jul 16, 2001 at 11:46:53AM +0200, Matthieu Le Corre wrote:
> Le Lundi 16 Juillet 2001 09:53, vous avez crit :
> > On Fri, Jul 13, 2001 at 02:13:36PM +0200, Matthieu Le Corre wrote:
> > > Le Jeudi 12 Juillet 2001 20:52, vous avez crit :
> > > > So I have now succesfully installed the base system on a external
> > > > narrow SCSI. I can boot off of it. Now the next question is how do I
> > > > set it up to go to the STI console instead of the serial?
> > > >
> > > > Ray
> > >
> > > try console=tty on palo commande line

Shouldn't that be console=tty0 and not console=tty ?

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] not supported by 0.9 version
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On Mon, Jul 16, 2001 at 03:37:20PM -0400, Yan Han wrote:
> Hi! we tried to install 0.9 version in 715/33. It doesn't work. 
> 
> so use "rbootd" to boot up the machine.

For 715/33, 715/50, and 715/75, you should use the 0.9.2 ISO, as it
contains a fixed glibc, needed for the older processors in these boxes.
See <http://mkhppa1.esiee.fr/download.html>.  I have always booted
via rbootd on my 715/75, never tried a CDROM boot.

Richard





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From: Matthieu Le Corre <matthieu.lecorre@polytech.univ-nantes.fr>
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Subject: Re: [parisc-linux] setting up the STI console on a 735/99
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Le Mardi 17 Juillet 2001 11:30, vous avez crit :
> On Mon, Jul 16, 2001 at 11:46:53AM +0200, Matthieu Le Corre wrote:
> > Le Lundi 16 Juillet 2001 09:53, vous avez crit :
> > > On Fri, Jul 13, 2001 at 02:13:36PM +0200, Matthieu Le Corre wrote:
> > > > Le Jeudi 12 Juillet 2001 20:52, vous avez crit :
> > > > > So I have now succesfully installed the base system on a external
> > > > > narrow SCSI. I can boot off of it. Now the next question is how do
> > > > > I set it up to go to the STI console instead of the serial?
> > > > >
> > > > > Ray
> > > >
> > > > try console=tty on palo commande line
>
> Shouldn't that be console=tty0 and not console=tty ?

not better ...


>
> Richard
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
_________________________________________________
  
                    Matthieu Le Corre
                  Service informatique
   Ecole Polytechnique de l'Universit de Nantes
      Matthieu.Lecorre@polytech.univ-nantes.fr
                     02.40.68.32.23
__________________________________________________




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From: "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Booting 0.9.2 on C110
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	'Richard Hirst' <rhirst@linuxcare.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11667

Hi all,

Update to previous message, tried 0.9.2 on following other machines:

B180: identiacl behaviour to C110; system freezes after the "debian/gnu"
messages

B2000 system decided to load 32-bit kernel instead of 64-bit kernel: did not
boot at all.

712/100: system boots, and switches nicely to sti console, continues after
the "debian/gnu" screen

735/125: system fails to see the cdrom during the "search" (probably
scsi/hardware problem)

I tried to reboot the K-server and the R-server, but somehow people were not
all that pleased with me any more ;-)))
So i have to postpone that attempt, but as they are also 64-bit machines, i
expect same results as with the B2000.

Two other C110 systems also freezes after the  "debian/gnu" screen



Kind regards, Hans

> -----Original Message-----
> From:	Witvliet, Hans [SMTP:Hans.Witvliet@alcatel.nl]
> Sent:	Tuesday, July 17, 2001 11:00 AM
> To:	'Richard Hirst'; Witvliet, Hans
> Cc:	parisc-linux@lists.parisc-linux.org
> Subject:	RE: [parisc-linux] Booting 0.9.2 on C110
> 
> Thanks Richard,
> 
> Tried it straight away, but no luck!
> Neither keyboard or mouse unplug/replug, nor space, return, escape,
> ctrl-c,
> ctrl-d or any function key seems to be noticed.
> I'll try to find an other idle-hp-machine to see if i see the identical
> behaviour....
> 
> Hans
> 
> > -----Original Message-----
> > From:	Richard Hirst [SMTP:rhirst@linuxcare.com]
> > Sent:	Tuesday, July 17, 2001 10:47 AM
> > To:	Witvliet, Hans
> > Cc:	parisc-linux@lists.parisc-linux.org
> > Subject:	Re: [parisc-linux] Booting 0.9.2 on C110
> > 
> > On Fri, Jul 13, 2001 at 02:40:19PM +0200, Witvliet, Hans wrote:
> > > High all,
> > > 
> > > Just downloaded 0.9.2 image, burned it, and gave it a try on my C110.
> > > (should work afaik)
> > > For  the broad picture:
> > > C110, 256MB mem PS/2 keyboard & mouse, two lan interface, neither
> > connected
> > > (yet) and no serial console)
> > > 
> > > Booting went well, switched to STI-console (nice tux  in upperleft
> > corner)
> > > In a blink boot (cpu, mem, disks, lan) info flashed across the screen,
> > and
> > > then, instead of login, a graphic screen with a general debian message
> > that
> > > it is experimental software.
> > 
> > That is correct, you are about to install linux from CD, so you are
> seeing
> > the first screen of the installer output.
> > 
> > > After that the system seems to be frozen...
> > 
> > There are problems with the keyboard driver; for some people unplugging
> > the keyboard and this point and then plugging it in again clears the
> > problem.  I found that an old Compaq keyboard did not lock up at all.
> > You should be able to press <space> or <return> on that screen and get
> > the main menu of the installer displayed.
> > 
> > Richard
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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Subject: Re: [parisc-linux] 715/100 no longer boots into console?
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> > Me:
> > So I upgraded from the 0.9 to the latest 0.91. Exerything worked nicely,
> > no errors, except now I get no login on the console. Looking over the boot
> > messages there's no errors, but there is two lines saying the FB is alive
> > and well and the console is switching to STI FB color console. Last
> > messages is after "INIT: switching to runlevel 2" and all the
> > "starting:..." messages (the last one is cron starting).

> Richard:
> Presumably you logged in via the network to get that dmesg output,
> so the machine is working ok.  Sounds like a frame buffer problem.
> 0.9 used STI console, 0.9.x uses STI frame buffer, if it is a chipset
> it recognises.

Yeah, the machine itself worked fine, just no console output. COM1 console
as well as SSH in both are quite happy.

> When you say you upgraded from 0.9 to 0.91, what do you mean?  Did
> you simply reinstall from the new .iso, or something else?  If you just
> installed, how did you get to being able to read dmesg without console
> access?

I had been doing the incremental updates, but when the ISO came out I
reinstalled. Console worked fine during the install...

> I assume your /etc/inittab is spawning a getty on tty0?

It is now - that is what I missed. For some reason the 0.91 install
disabled all the tty's for local consoles. Not sure why that is a default
setting, but I just test things - I'm not quite up to understanding what's
actually happening :-)





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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Booting 0.9.2 on C110
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"Witvliet, Hans" wrote:
> Hi all,
> 
> Update to previous message, tried 0.9.2 on following other machines:
...
> B2000 system decided to load 32-bit kernel instead of 64-bit kernel: did not
> boot at all.

CD-Drive on systems with suckyio isn't supported yet. Randolph Chung
committed a first cut of support for it but it's not working yet.
(suckyio is in B/C/J with 4 digits behind it.eg B2000, C3000)

I expected the B2000 to boot with a 64-bit kernel too.
Perhaps the firmware needs to be updated? (See parisc-linux FAQ)
But you can build/install a 64-bit kernel later if you think it will help...
(See previous thread on this in the mail archive)

...
> I tried to reboot the K-server and the R-server, but somehow people were not
> all that pleased with me any more ;-)))

Yeah...I can imagine :^)
K, D, R class are architecturally very similar to C110/C200/C240 machines.
But no one plans on writing drivers for HP-PB devices (K-class).

> So i have to postpone that attempt, but as they are also 64-bit machines, i
> expect same results as with the B2000.

I wouldn't - they are quite different.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] 715/100 no longer boots into console?
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Xref: news.gmane.org gmane.linux.ports.parisc:11670

Hi Tom, Richard,

On Tuesday 17 July 2001 11:29, Richard Hirst wrote:
> On Sun, Jul 15, 2001 at 07:50:39PM -0800, Tom wrote:
> > So I upgraded from the 0.9 to the latest 0.91. Exerything worked nicely,
> > no errors, except now I get no login on the console. Looking over the
> > boot messages there's no errors, but there is two lines saying the FB is
> > alive and well and the console is switching to STI FB color console. Last
> > messages is after "INIT: switching to runlevel 2" and all the
> > "starting:..." messages (the last one is cron starting).
> >
> > I *had* all the common pitfalls saved, until I had a drive crash in the
> > mail server and nuke all the saved mail :-(. So, if someone can tell me
> > the simple solution to this I'd appreciate it... If needed the output of
> > dmesg is at http://www.alaskatech.org/stuff/715boot.txt
>
> Presumably you logged in via the network to get that dmesg output,
> so the machine is working ok.  Sounds like a frame buffer problem.
> 0.9 used STI console, 0.9.x uses STI frame buffer, if it is a chipset
> it recognises.

IIRC the 715/100 is nearly identical to the 715/64, so sticon and stifb should work.

> .....

> I assume your /etc/inittab is spawning a getty on tty0?

Tom: Does it ?  If not, then that's why it's failing.

Greetings,

Helge





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From: Christian Suder <csuder@cisco.com>
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Subject: [parisc-linux] 0.9.2 missing compiler ?
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Hi,

I installed 0.9.2 on a 712/80, installation went nicely but there's no
gcc installed. :-( Appears there is no such package on the CD. There is
a package on the 9.0 CD (which failed to install any packages.....) but
I can't figure out how to get that installed. Tried "apt-get install
./<filename>" but get an error message about python-zlib !?!?  I'm not
Debian-literate, so how do I get the compiler ?

Thanks,
    Christian





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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 0.9.2 missing compiler ?
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Christian Suder writes...

> Hi,
> 
> I installed 0.9.2 on a 712/80, installation went nicely but there's no
> gcc installed. :-( Appears there is no such package on the CD. There is
> a package on the 9.0 CD (which failed to install any packages.....) but
> I can't figure out how to get that installed. Tried "apt-get install
> ./<filename>" but get an error message about python-zlib !?!?  I'm not
> Debian-literate, so how do I get the compiler ?

man apt-get
man sources.list
vi /etc/apt/sources.list
apt-get update
apt-get install gcc

Reply if you still need help after that.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 0.9.2 missing compiler ?
Date: Wed, 18 Jul 2001 00:26:35 +0200
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Hi Christian,

	If you have your box connected to the web (that should be true
regarding where you work :), you just have to add this line to your
/etc/apt/sources.list
deb http://http.us.debian.org/debian unstable main

If you have a proxy to get http working, you have to create the file
/etc/apt/apt.conf which containts this:
Acquire::http::Proxy "http://your.proxy.fqdn:port/";

And then just a little apt-get update where you should see that it
downloads the files.

For your information, I just had a look to the big ISO and I get that:

spqr:/cdrom1/dists/sid/main/binary-hppa/more_packages# ls gcc
gcc-3.0-base_3.0-3_all.deb
gcc-hppa64_3.0-0pre010427.0.0.1_hppa.deb
gcc_3.0-6_hppa.deb

So, it seems to be there. Perhaps, you have the little one without it.
Try to download the big one, if the instructions above do not work.

Regards, Thomas
ESIEE Team




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715/100 no longer boots into console?
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Xref: news.gmane.org gmane.linux.ports.parisc:11674

On Tue, Jul 17, 2001 at 02:21:16PM -0800, Tom wrote:
> On Tue, 17 Jul 2001, Helge Deller wrote:
> > > > I assume your /etc/inittab is spawning a getty on tty0?
> > >
> > > Tom: Does it ?  If not, then that's why it's failing.
> >
> > Tom, I just saw you already answered this.
> > So please forget about my mail.
> >
> > Greetings,
> > Helge
> 
> No problem :-)  Actually, my only remaining question is why disabling the
> tty[x] entries in inittab would be a default behavior; I had changed it
> with 0.9 and the install of 0.91 changed it back. Weird.
> 
> Anyway, that might be a good thing to change for a 1.0 release - assuming
> the console will be serial could be bad...

Installer should auto detect whether it is on a serial on graphical
console, and set up inittab appropriately.  Sounds like it got confused
in your case.  Not aware of anyone else having that problem.

Richard




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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Subject: [parisc-linux] 2.4.6-pa20 question about modules
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Hi Thomas,

With your tips
(http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/013081.html)

the cvs 20010717 seems to works fine.
(for b180 still have to unplug re-plug kdb)

I also try to recompile it with the .config file supply with palinux-0.9.2.
It also seems to works well but modules are not install naturally.
Can you explain me how to compile it and install it?

Thanks in advance for help,
     Joel

PS: How is it possible to cvs co a previous kernel release now (f.e.
2.4.0-pa30)?



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Subject: [parisc-linux] low-level format for Hp 715/50 machine SCSI disk
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Hi!

Does anyone know how to do low-level hard disk format for HP 715/50
machines. We cannot boot it up with its own scsi disck, since there are
error messages.

thanks,





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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Problems with Release 0.9 for PA-RISC
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"Laubrock, Ulrich" wrote:
> Hallo Mr. Grundler,
> 
> i have tested the 0.9 Release for PA-RISC on a HP 712/80 with 128 MB RAM and 
>   2 GB drive.
> I have installed STI sid.
> 
> After the installation i have reboot the system and then the kernel crashed. 
>   I have tested an reboot again but it has no effect. Then i have get an univ
>   ersal kernel from your website. With this kernel the system is running good
>   .
> Is there a known problem with the kernel?

Hi Ulrich,

hmm...at times...but the install kernel should work fine on a 712.
You could download the 0.92 version and steal the right kernel from that.

The team at ESIEE (http://mkhppa1.esiee.fr/) put the ISO's together.
AFAIK it was tested on 712's, 715's, B180, B132, C3000, J5000 and A500.

> At the installation i have set the keyboard to german layout, but after reboo
>   t the system has lost this setting, it was only temporary for the installat
>   ion. Then i have set "loadkey german" in the /etc/profile.
> Now i have a german keyboard, but this keysetting has no ">,<,|". Using UNIX 
>   without "|" is not very good.
> What can i do to set german keyboard with all characters?

I don't know since I haven't needed to change keyboard settings.
Can any other german keyboard user help?

The parisc-linux mailing list probably has the answer if you look for it.
(http://lists.parisc-linux.org/)

> My greatest problem is that i have no ftpd, no telnetd and no rlogind. 
> As ftpd i think i can get wu_ftp, but where can i get an telnetd and an rlogi
>   nd?

Right.  As root:
	apt-get update 
	apt-get install ftpd
	apt-get install telnetd

I didn't see a rlogind package available.
The evil-minded debian developers I consort with have brainwashed
me into only using ssh and sshd.

> Is there a tool for administration the system after reboot the installation
>  like "dbootstrap" ?

Sorry - I don't know dbootstrap.

	debian:~# dpkg -S dbootstrap
	base-config: /usr/lib/base-config/0dbootstrap_settings

Might just need to apt-get the right package.

> Is the XServer running on this System?
> If yes, how can i start it?

On 712's I think so..  I have to refer you to the parisc-linux Mail archive:
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-June/012927.html

> 
> Mit freundlichen Gren
> Ulrich Laubrock


Mit freundlichen Gren
grant

> _____________________________________________
> T-Systems
> T-Nova Deutsche Telekom Innovationsgesellschaft mbH
> > EZ Rhein-Ruhr, EA 23-6 
> Tel:   	+49 521 5259 921
> Fax: 	+49 521 5259 694
> Email:	mailto:Ulrich.Laubrock@t-systems.de

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: [parisc-linux] HP9000 K200
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Hi!

I have a K200 wich I'm trying to install Linux on, is this even supported?
Whan I try the palinux-cd it dies a horrible death just after the ramdrive
is uncompressed. If I try the lifiimage from the ftp it dies after the
serial-driver is started, seems to be the same problem as on the cd.
When I try my "home-compiled" kernel it dies directly.. :(

So if anyone run linux on a K200, could they please help me, I really
don't wanna run HP-UX on this one =)


bootlog:
http://ariana.eagle.y.se/~mathew/hp9000_boot.txt

Hardware:
2x CPU
256 MB ram
no HP-BA cards on it at the moment.





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Subject: [parisc-linux] Re: 2.4.6-pa20 question about modules
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Hi Jol and all,
> 
> With your tips
> (http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/013081.html)
> 
> the cvs 20010717 seems to works fine.
> (for b180 still have to unplug re-plug kdb)
Nice to know that. But, I think I will deliver a big patch for the
keyboard story. Then, I will need some testers. Thanks to be one of them
:)
> 
> I also try to recompile it with the .config file supply with palinux-0.9.2.
> It also seems to works well but modules are not install naturally.
> Can you explain me how to compile it and install it?
> 
First, you must know that some of the drivers are not modularized yet. I
think that it looks like pc modules. But since I am not a guru in this
stuff, I think someone else will tell you
> Thanks in advance for help,
>      Joel
> 
> PS: How is it possible to cvs co a previous kernel release now (f.e.
> 2.4.0-pa30)?
I would like to know. I think, if you read at Paul Bame litterature, he
said that it is broken for 2.4.0.
I can grab old versions with cvs co -r 1.83 linux, for example.
To know the release you want, use this:
http://puffin.external.hp.com/cgi-bin/cvsview/

Thanks again for reporting, Thomas.
ESIEE Team

PS: I also hope an explanation of modules on hppa. I will have to write
all the cleanup stuff for the mouse.




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] 2.4.6-pa20 question about modules
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Xref: news.gmane.org gmane.linux.ports.parisc:11680

On Wed, Jul 18, 2001 at 06:33:21PM +0200, Jol Soete wrote:
> Hi Thomas,
> 
> With your tips
> (http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/013081.html)
> 
> the cvs 20010717 seems to works fine.
> (for b180 still have to unplug re-plug kdb)
> 
> I also try to recompile it with the .config file supply with palinux-0.9.2.
> It also seems to works well but modules are not install naturally.
> Can you explain me how to compile it and install it?

If I understand correctly, you are rebuilding the kernel, and want
kernel modules installed correctly under /lib/modules?


cd /usr/src/linux   (or wherever your source tree is)
# save your .config file, if you want it
make distclean
cp <config file> .config
make oldconfig
make dep
make
make modules
make modules_install
cp vmlinux /boot/vmlinux   (or whereever you want it to go)


Richard





From - Thu Nov 08 21:18:34 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP9000 K200
Date: Wed, 18 Jul 2001 20:19:05 -0600
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   of "Thu, 19 Jul 2001 00:31:13 +0200." <Pine.GSO.4.33.0107190026100.531-100000@r2d2.eagle.y.se> 
Xref: news.gmane.org gmane.linux.ports.parisc:11681

Mattias Nordlund wrote:
> 
> Hi!
> 
> I have a K200 wich I'm trying to install Linux on, is this even supported?
> Whan I try the palinux-cd it dies a horrible death just after the ramdrive
> is uncompressed. If I try the lifiimage from the ftp it dies after the
> serial-driver is started, seems to be the same problem as on the cd.
> When I try my "home-compiled" kernel it dies directly.. :(

>From the bootlog, I only see that I built the kernel.
The newest one from the FTP site is:
-rw-r--r--   1 grundler cvsusers  1149294 May  6 00:34 lifimage_32_serial_20010505.gz

Which version of the palinux-cd?


> bootlog:
> http://ariana.eagle.y.se/~mathew/hp9000_boot.txt

One would have to extract the System.map from the vmlinux in this lifimage
in order to make any sense of the console log.

Looks like a null ptr derefence. Trying a newer 32-bit kernel/lifimage
would be a first step.  I've put a newer files on puffin.external.hp.com
ftp site (pub/parisc/binaries/lifimages):
-rw-r--r--   1 grundler cvsusers  1412239 Jul 18 20:14 lifimage_32_serial_20010717.gz
-rw-r--r--   1 grundler cvsusers   549881 Jul 18 20:16 System.map_serial_20010717

Can't promise they will work better though...

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:18:34 2018
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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Subject: [parisc-linux] Re: 2.4.6-pa20 question about modules
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Xref: news.gmane.org gmane.linux.ports.parisc:11682

Thomas,

Thanks a lot for information.

I am so waiting your patch for kbd (the cvs question was in fact to try to
understand changes that make ps2 kbd un-operational and by the way why
unplug re-plug of b180 kbd was requested).

Always happy to try to help free and open software community.

Joel



                                                                           =
                                       =20
                    Thomas                                                 =
                                       =20
                    Marteau              To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD,                            =20
                    <marteaut@esi        parisc-linux@parisc-linux.org@SMTP=
@EUROPAY                               =20
                    ee.fr>               cc:                               =
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                                         Subject:     Re: 2.4.6-pa20 questi=
on about modules                       =20
                    19-07-01                                               =
                                       =20
                    12:29 AM                                               =
                                       =20
                                                                           =
                                       =20
                                                                           =
                                       =20



Hi Jo=EBl and all,
>
> With your tips
> (
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/013081.html)
>
> the cvs 20010717 seems to works fine.
> (for b180 still have to unplug re-plug kdb)
Nice to know that. But, I think I will deliver a big patch for the
keyboard story. Then, I will need some testers. Thanks to be one of them
:)
>
> I also try to recompile it with the .config file supply with
palinux-0.9.2.
> It also seems to works well but modules are not install naturally.
> Can you explain me how to compile it and install it?
>
First, you must know that some of the drivers are not modularized yet. I
think that it looks like pc modules. But since I am not a guru in this
stuff, I think someone else will tell you
> Thanks in advance for help,
>      Joel
>
> PS: How is it possible to cvs co a previous kernel release now (f.e.
> 2.4.0-pa30)?
I would like to know. I think, if you read at Paul Bame litterature, he
said that it is broken for 2.4.0.
I can grab old versions with cvs co -r 1.83 linux, for example.
To know the release you want, use this:
http://puffin.external.hp.com/cgi-bin/cvsview/

Thanks again for reporting, Thomas.
ESIEE Team

PS: I also hope an explanation of modules on hppa. I will have to write
all the cleanup stuff for the mouse.





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From - Thu Nov 08 21:18:34 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] r3 getting trashed by __wake_up?
Date: Thu, 19 Jul 2001 01:51:15 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:11683

Hi parisc asm experts! ;^)

The problem I'm seeing is r3 is zero'd (trashed) by __wake_up()
when called by wake_up_parent().  I'm triggering this consistently
with "pon uunet" - ie fire up a ppp dialup session. The c3k crashes
after the modem returns a "CONNECT" string.

The c3k data page faults with:

	Kernel Fault: Code=26 regs=8e6a4740 (Addr=00000098)

IOAQ and GR02 are both wake_up_parent+24
(called from skip_save_ior+164) 

"objdump -rD kernel/signal.o" shows:

0000000000000000 <wake_up_parent>:
   0:   6b c2 3f d9     stw rp,-14(sp)
   4:   6f c4 00 80     stw,ma r4,40(sp)
   8:   6b c3 3f 89     stw r3,-3c(sp)
   c:   08 1a 02 44     copy r26,r4
  10:   08 04 02 43     copy r4,r3
  14:   34 19 00 02     ldi 1,r25
  18:   34 7a 01 50     ldo a8(r3),r26
  1c:   e8 00 a0 00     call 24 <wake_up_parent+0x24>
                        1c: R_PARISC_PCREL22F   __wake_up
  20:   08 19 02 58     copy r25,r24
  24:   48 73 01 30     ldw 98(r3),r19
  28:   36 63 3e d1     ldo -98(r19),r3
...


r3 is zero. But it obviously wasn't zero before calling __wake_up.
Now __wake_up save/restore of registers is a bit wierd...
It doesn't look right to me but it's been a long day:
0000000000000000 <__wake_up>:
   0:   08 03 02 41     copy r3,r1
   4:   6b c2 3f d9     stw rp,-14(sp)
   8:   08 1e 02 43     copy sp,r3
   c:   6f c1 01 00     stw,ma r1,80(sp)
  10:   0c 6d 12 90     stw  r13,8(sr0,r3)
...
  c8:   0c 70 10 8d     ldw  8(sr0,r3),r13
...
  f0:   34 7e 00 80     ldo 40(r3),sp
  f4:   e8 40 d0 00     ret       
  f8:   4f c3 3f 81     ldw,mb -40(sp),r3

I didn't see any code inbetween that modifies r3.
And from this code it looks like r3 is callee save.

Shouldn't sp be restored with "copy r3,sp"?
And the restore of r3 be "ldw 0(sp),r3"?

Everything on my c3k is up-to-date and vmlinux was built native from scratch:
   gcc-3.0 |    1:3.0-1 |      unstable | hppa, hurd-i386
   gcc-3.0 |    1:3.0-4 |      unstable | alpha, arm, i386, mips, mipsel, powerpc, sparc

Perhaps we just need to rebuild/use the newer gcc bits?
Other ideas?

thanks,
grant





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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Subject: Re: [parisc-linux] 2.4.6-pa20 question about modules
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To: "Richard Hirst <rhirst" <rhirst%linuxcare.com%SMTP%EUROPAY@mastercard.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11684

Hi Richard,

Just to clarify:
does it means that I have to (or I can) recompile my kernel from my
palinux-box?

Is it not possible from i386 linux box and the cross compiler?

Thanks again for support,
     Joel



                                                                           =
                                       =20
                    Richard Hirst                                          =
                                       =20
                    <rhirst@linux        To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD                             =20
                    care.com>            cc:     marteaut@esiee.fr@SMTP@EUR=
OPAY,                                  =20
                                         parisc-linux@lists.parisc-linux.or=
g@SMTP@EUROPAY                         =20
                    19-07-01             Subject:     Re: [parisc-linux] 2.=
4.6-pa20 question about modules        =20
                    01:24 AM                                               =
                                       =20
                                                                           =
                                       =20
                                                                           =
                                       =20



On Wed, Jul 18, 2001 at 06:33:21PM +0200, Jo=EBl Soete wrote:
> Hi Thomas,
>
> With your tips
> (
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/013081.html)
>
> the cvs 20010717 seems to works fine.
> (for b180 still have to unplug re-plug kdb)
>
> I also try to recompile it with the .config file supply with
palinux-0.9.2.
> It also seems to works well but modules are not install naturally.
> Can you explain me how to compile it and install it?

If I understand correctly, you are rebuilding the kernel, and want
kernel modules installed correctly under /lib/modules?


cd /usr/src/linux   (or wherever your source tree is)
# save your .config file, if you want it
make distclean
cp <config file> .config
make oldconfig
make dep
make
make modules
make modules_install
cp vmlinux /boot/vmlinux   (or whereever you want it to go)


Richard





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From - Thu Nov 08 21:18:34 2018
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Hi,

I would just like to report that we have installed the 0.9.1 distro on
a C200 without any problems at all! It defaulted to the 32bit kernel,
we will try to build a new kernel with 64 bit support.

Great work with the distribution!! 

Some minor(?) bugs discovered so far:
* After the reboot during the last stage of installation we got a
  corrupted filesystem and some files ended up in lost+found.
* cat /proc/interupts gives an oops and hangs the system
* cat /dev/dsp gives an oops and hangs the system

A question;
during boot the firmware complains about that the memory is not
installed for "optimal performance". Do anyone know what to do about
this?


Let me know if someone would like to use this machine for autobuiling
etc, it has 512MB RAM and a good access to the Internet. 

/Jakob
-- 
Jakob Sandgren                  South Pole AB
Phone:  +46 8 51420420          Gelbjutarvgen 5
Fax:    +46 8 51420429          SE - 17148 Solna 
e-mail: jakob@southpole.se      www.southpole.se




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From: Alan Modra <amodra@bigpond.net.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] r3 getting trashed by __wake_up?
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On Thu, Jul 19, 2001 at 01:51:15AM -0600, Grant Grundler wrote:
> 
>   f0:   34 7e 00 80     ldo 40(r3),sp
>   f4:   e8 40 d0 00     ret       
>   f8:   4f c3 3f 81     ldw,mb -40(sp),r3
> 
> Shouldn't sp be restored with "copy r3,sp"?
> And the restore of r3 be "ldw 0(sp),r3"?

No, because then an interrupt might come along and trash 0(sp).  All
the assembly you showed looks good to me.

Alan





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From: Thomas Bogendoerfer <tsbogend@chico.franken.de>
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Subject: Re: [parisc-linux] Installation success on C200
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On Thu, Jul 19, 2001 at 12:09:11PM +0200, Jakob Sandgren wrote:
> * cat /proc/interupts gives an oops and hangs the system

that's a bug I already found and I have a not quite correct fix for it.
All systems with dinos are affected. I'll check in the fix later.

Thomas.





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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Re: Problems with Release 0.9 for PA-RISC
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On Wed, Jul 18, 2001 at 03:35:58PM -0600, Grant Grundler wrote:
> > My greatest problem is that i have no ftpd, no telnetd and no rlogind. 
> > As ftpd i think i can get wu_ftp, but where can i get an telnetd and an rlogi
> >   nd?
> 
> Right.  As root:
> 	apt-get update 
> 	apt-get install ftpd
> 	apt-get install telnetd
> 
> I didn't see a rlogind package available.

apt-cache search rlogind returns rrlogind, rsh-server, and
krb5-rsh-server.  rrlogind is a spurious hit, so you have your choice
of kerborised or vanilla rlogin servers :-)

> The evil-minded debian developers I consort with have brainwashed
> me into only using ssh and sshd.

... of course, i only have sshd installed :-)

-- 
Revolutions do not require corporate support.




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From: Mattias Nordlund <mathew@eagle.y.se>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP9000 K200
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On Wed, 18 Jul 2001, Grant Grundler wrote:

> Mattias Nordlund wrote:
> >
>
> >From the bootlog, I only see that I built the kernel.
> The newest one from the FTP site is:
> -rw-r--r--   1 grundler cvsusers  1149294 May  6 00:34 lifimage_32_serial_20010505.gz
>
> Which version of the palinux-cd?
>
The newest, I guess, the one from the parisc-linux.org site.

>
>
> > bootlog:
> > http://ariana.eagle.y.se/~mathew/hp9000_boot.txt
>
> One would have to extract the System.map from the vmlinux in this lifimage
> in order to make any sense of the console log.
>
> Looks like a null ptr derefence. Trying a newer 32-bit kernel/lifimage
> would be a first step.  I've put a newer files on puffin.external.hp.com
> ftp site (pub/parisc/binaries/lifimages):
> -rw-r--r--   1 grundler cvsusers  1412239 Jul 18 20:14 lifimage_32_serial_20010717.gz
> -rw-r--r--   1 grundler cvsusers   549881 Jul 18 20:16 System.map_serial_20010717
>
> Can't promise they will work better though...
>

I've tried that kernel, and it dies at the sam point as my own kernel
died, I have include the new boot-log, as I don't reallt know how to find
teh right adress in the System.map =)

http://ariana.eagle.y.se/~mathew/hp9000_boot1.txt

Mattais N





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From: "Scammell, David" <David.Scammell@uk.wmmercer.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/33 disk and kernel make dep problems
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Hi,

I installed with 9.2, no problems, updated with apt-get.

I'd like to build my own kernel to test out a disk problem I have.

When I attempt anything which would fill the scsi disk queue with pending
writes
(e.g. tar xf kernel.tar), then machine hangs, I get some messages on the
serial
console which I've not got them written down yet, but these include a mount
read
only message. I'm using an old 2Gb disk (info not to hand, I'm at work), but
no so
old it shouldn't handle tagged writes. I'd like to change the queue depth
and bus
sync speed (looks like its set at 20Mhz, not 10Mhz) to see if this makes a
difference.

To compile a kernel, I've untarred it on an i686 and nfs mounted it on the
715,
make oldconfig works fine. Make dep hangs in some subdirectories (below
drivers/acpi... somewhere I can't remember). I can't figure out why. I'm
quite
familiar with recompilations on my intel box but can't figure out what could
be
wrong on the HP, any ideas?

Thanks

David Scammell


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Subject: [parisc-linux] 715/64 wide mode problem
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i'm trying to install pa-risc linux on a hp 9000/715/64 box via an internal
cdrom drive.  the kernel boots up but then reports

  "firmware does not allow selection of default wide mode.
   are you trying to boot a 64bit kernel on a pa1.1 box?"

the processor revision is 2.4 (guess that pa1.1 refers to this) and bootrom
is reported to be 1.6 (another guess: means firmware version is 1.6--which
according to hp's site is the most 'recent' revision).  i scanned the
archives but got lost in the myriads of weird tech stuff.  if anyone can
help me with this, that would be cool (otherwise i'd have to install linux
on a crappy old p75).  thanks in advance.

-rene


Diese E-Mail wurde auf Viren geprueft. 
MAICO Villingen-Schwenningen

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<P><FONT SIZE=3D2>i'm trying to install pa-risc linux on a hp 9000/715/64 b=
ox via an internal cdrom drive.&nbsp; the kernel boots up but then reports<=
/FONT></P>

<P><FONT SIZE=3D2>&nbsp; &quot;firmware does not allow selection of default=
 wide mode.</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp; are you trying to boot a 64bit kernel on a =
pa1.1 box?&quot;</FONT>
</P>

<P><FONT SIZE=3D2>the processor revision is 2.4 (guess that pa1.1 refers to=
 this) and bootrom is reported to be 1.6 (another guess: means firmware ver=
sion is 1.6--which according to hp's site is the most 'recent' revision).&n=
bsp; i scanned the archives but got lost in the myriads of weird tech stuff=
.&nbsp; if anyone can help me with this, that would be cool (otherwise i'd =
have to install linux on a crappy old p75).&nbsp; thanks in advance.</FONT>=
</P>

<P><FONT SIZE=3D2>-rene</FONT>
</P>

<CODE><FONT SIZE=3D3><BR>
<BR>
Diese E-Mail wurde auf Viren geprueft. <BR>
MAICO Villingen-Schwenningen<BR>
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From: Helge Deller <helge.deller@sap.com>
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Subject: Re: [parisc-linux] 715/64 wide mode problem
Date: Thu, 19 Jul 2001 17:33:19 +0200
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To: Damm <Damm@maico.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:11692

Hi,

The 715/64 has a 32bit CPU and can't run wide mode (64bit) kernels. 
Get the 32bit ISO image and install that one.
Since I have the same box, I know that the 1.6 firmware is up-to-date
and that your box should run without any problems.
(And: your p75 isn't that bad compared with the 715/64) :-)

Greetings,

Helge

Damm wrote:
> 
> i'm trying to install pa-risc linux on a hp 9000/715/64 box via an
> internal cdrom drive.  the kernel boots up but then reports
> 
>   "firmware does not allow selection of default wide mode.
>    are you trying to boot a 64bit kernel on a pa1.1 box?"
> 
> the processor revision is 2.4 (guess that pa1.1 refers to this) and
> bootrom is reported to be 1.6 (another guess: means firmware version
> is 1.6--which according to hp's site is the most 'recent' revision).
> i scanned the archives but got lost in the myriads of weird tech
> stuff.  if anyone can help me with this, that would be cool (otherwise
> i'd have to install linux on a crappy old p75).  thanks in advance.
> 
> -rene

-- 
_______________________________________________________________________

THE BEST RUN E-BUSINESSES RUN SAP
_______________________________________________________________________

Helge Deller                            email: helge.deller@sap.com
SAP AG Walldorf/Baden, Germany         
LinuxLab                               

SAP LinuxLab support address: linux@sap.com




From - Thu Nov 08 21:18:34 2018
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From: "Pedot, Wolfgang" <wpedot@harris.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] What kind of RAM uses a 715/75?
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Hi,

During my work on my 715/75 (works now fine) I saw that it seem to use standard
SIMMs.
Does anybody now what Type of RAM this Workstation needs (EDO, FPM, what Size
max...)?

greetings
Wolfgang





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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Subject: Re: [parisc-linux] 2.4.6-pa20 question about modules
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Xref: news.gmane.org gmane.linux.ports.parisc:11694

Richard,

Just a small tips I use on my i386 linux-box: I launch the make in one line
and tacke a log which I can so analyze later like:

make dep clean bzImage modules modules_install 2>&1 | tee
/var/tmp/kl-200107.log

(presently replace bzImage by vmlinux for parisc on a parisc-box seems to
work)

May be, it should be helpfull :))

Joel

ps: but with parisc-box I met a problem which I do not met with the
xcompiler on i386 linux-box:

dmfe.c: In function `dmfe_timer':
dmfe.c:1193: Unable to find a register to spill in class `FP_REGS'.
dmfe.c:1193: This is the insn:
(insn 255 254 894 (set (reg:DF 22 %r22 [157])
        (float:DF (reg:DI 4 %r4 [158]))) 149 {floatdidf2} (insn_list 254
(nil))
    (expr_list:REG_DEAD (reg:DI 4 %r4 [158])
        (expr_list:REG_EQUAL (unsigned_float:DF (reg:SI 156))
            (nil))))
dmfe.c:1193: confused by earlier errors, bailing out
make[2]: *** [dmfe.o] Error 1
make[2]: Leaving directory
`/usr/src/kernel-source-2.4.6-20010717/drivers/net'
make[1]: *** [_modsubdir_net] Error 2
make[1]: Leaving directory `/usr/src/kernel-source-2.4.6-20010717/drivers'
make: *** [_mod_drivers] Error 2

any idea?




                                                                           =
                                       =20
                    Richard Hirst                                          =
                                       =20
                    <rhirst@linux        To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD                             =20
                    care.com>            cc:     marteaut@esiee.fr@SMTP@EUR=
OPAY,                                  =20
                                         parisc-linux@lists.parisc-linux.or=
g@SMTP@EUROPAY                         =20
                    19-07-01             Subject:     Re: [parisc-linux] 2.=
4.6-pa20 question about modules        =20
                    01:24 AM                                               =
                                       =20
                                                                           =
                                       =20
                                                                           =
                                       =20



On Wed, Jul 18, 2001 at 06:33:21PM +0200, Jo=EBl Soete wrote:
> Hi Thomas,
>
> With your tips
> (
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/013081.html)
>
> the cvs 20010717 seems to works fine.
> (for b180 still have to unplug re-plug kdb)
>
> I also try to recompile it with the .config file supply with
palinux-0.9.2.
> It also seems to works well but modules are not install naturally.
> Can you explain me how to compile it and install it?

If I understand correctly, you are rebuilding the kernel, and want
kernel modules installed correctly under /lib/modules?


cd /usr/src/linux   (or wherever your source tree is)
# save your .config file, if you want it
make distclean
cp <config file> .config
make oldconfig
make dep
make
make modules
make modules_install
cp vmlinux /boot/vmlinux   (or whereever you want it to go)


Richard





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From - Thu Nov 08 21:18:35 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] 2.4.6-pa20 question about modules
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Xref: news.gmane.org gmane.linux.ports.parisc:11695

On Thu, Jul 19, 2001 at 07:46:09PM +0200, Jol Soete wrote:
> make dep clean bzImage modules modules_install 2>&1 | tee
> /var/tmp/kl-200107.log

don't do this.  make dep creates dependencies which then need to be taken
into account for later steps.  you might rely on make getting this right,
but i don't.

> ps: but with parisc-box I met a problem which I do not met with the
> xcompiler on i386 linux-box:
> 
> dmfe.c: In function `dmfe_timer':
> dmfe.c:1193: Unable to find a register to spill in class `FP_REGS'.

bug in that driver (it has x * 1.5, which uses fp).  fixed in alan's tree,
though i don't believe it's made its way into linus' tree yet.

consider youself lucky you get compile-time errors instead of random
inexplicable fp corruption.

-- 
Revolutions do not require corporate support.




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Installation success on C200
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Xref: news.gmane.org gmane.linux.ports.parisc:11696

Jakob Sandgren wrote:
> A question;
> during boot the firmware complains about that the memory is not
> installed for "optimal performance". Do anyone know what to do about
> this?

The owners guide or install guide will tell exactly how to do that.
Anyone have such a guide for C200?

Typically one should install the biggest SIMMs in the lowest numbered
slots. Some models want them installed in pairs of the same size.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Re: Problems with Release 0.9 for PA-RISC
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On Wed, Jul 18, 2001 at 03:35:58PM -0600, Grant Grundler wrote:
> > Is there a tool for administration the system after reboot the installation
> >  like "dbootstrap" ?
> 
> Sorry - I don't know dbootstrap.

dbootstrap is part of boot-floppies, it is the program that you
interact with for the first stage of the install.  You can't rerun
that.

After the first reboot, for second stage install, base-config is
running.  You can run that again (/sbin/base-config), if you want
to.  If you are running a serial console, you might find base-config
has been removed, in which case apt-get install base-config.

You can dpkg-reconfigure <pkgname> if there is a particular
pkg you want to reconfigure.

Richard





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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Installation success on C200
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Jacob and Grant,

The Slots are numbers as follows (according to the Owners Guide):

0A
4A
0B
4B
2A
5A
2B
5B
<space>
<space>
3A
1A
3B
1B

Rear of Main Tray


The C200 takes 16MB, 32MB, 64MB, or 128MB and must be intalled 
in pairs.  Always install the largest capacity memory modules 
in the lowest numbered memory slots.

Hope this helps.

- Ryan


On Thu, Jul 19, 2001 at 01:29:15PM -0600, Grant Grundler wrote:
> Jakob Sandgren wrote:
> > A question;
> > during boot the firmware complains about that the memory is not
> > installed for "optimal performance". Do anyone know what to do about
> > this?
> 
> The owners guide or install guide will tell exactly how to do that.
> Anyone have such a guide for C200?
> 
> Typically one should install the biggest SIMMs in the lowest numbered
> slots. Some models want them installed in pairs of the same size.
> 
> grant
> 
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 

-- 




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Quoth Jol Soete:
> Just a small tips I use on my i386 linux-box: I launch the make in one line
> and tacke a log which I can so analyze later like:
> 
> make dep clean bzImage modules modules_install 2>&1 | tee /var/tmp/kl-200107.log

Safer to run them separately.  You can still easily log them, there are
many possible ways to do this ...

$ for target in clean dep vmlinuz modules modules_install
> do make $target 2>&1 | tee -a /var/tmp/kl-200107.log
> done

$ (make clean ; make dep ; make vmlinux ; make modules ; make modules_install) 2>&1 | tee -a /var/tmp/kl-200107.log

$ script /var/tmp/kl-200107.log
Script started, output file is /var/tmp/kl-200107.log
$ make clean ; make dep ; make vmlinux ; make modules ; make modules_install ; exit
...
Script done, output file is /var/tmp/kl-200107.log
$


Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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From: =?iso-8859-1?Q?R=FCdiger?= Scholz <rscholz@hrzpub.tu-darmstadt.de>
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Subject: [parisc-linux] Kernel crashs on 715/100
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Dies ist eine mehrteilige Nachricht im MIME-Format.
--------------4CC60164A75AC93662149227
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi there!
I have a 715 / 100, running the 0.9-Release with updated GCC and Glibc.
I got the freshest Kernel from CVS (2.4.6-pa20) and compiled it on my
machine. Only SerCon is enabled, as STICon and StiFB aren't working for
me.
But when I boot the new kernel,  it crashs right after the message "Set
default PSW W bit to 0"
System.map and Config-File of the Kernel are available at
http://www.tu-darmstadt.de/~rscholz .

Another question, but a little bit OT:

I have still 2 memory modules from an old HP server (an E45, I think).
Can
I use them in my workstation too?



--------------4CC60164A75AC93662149227
Content-Type: text/plain; charset=us-ascii;
 name="minicom.cap"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="minicom.cap"


----------------------------------------------------------------------------
BootRom Version    1.4  
Memory Size:  128 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.
----------------------------------------------------------------------------
Command                                Description
-------                                -----------
Auto [boot|search] [on|off]            Set/show auto mode
Boot [pri|alt [isl]]                   Boot from primary or alternate path
Boot [scsi|eisa.<slot>[.<addr>]] [isl] Boot from SCSI or EISA
Boot lan[.<addr>] [install] [isl]      Boot from LAN
Chassis [on|off]                       Set/show chassis codes display mode
DefaultSS                              Reboot and set EEPROM to default values
Diagnostic [on|off]                    Set/show diagnostic boot mode
Fastboot [on|off]                      Set/show fast boot mode
Help                                   Show this command menu
Information                            Show system information
LanAddress                             Show LAN station addresses
Monitor [<DEV>[.<type>]]               Set/show graphics monitor type
                                       (<DEV>=graphics|graphics_<1|2>)
Path [pri|alt [<DEV>[.<addr>]]]        Set/show boot source path
                                       (<DEV>=lan|scsi|eisa.<slot>)
Path [console [<DEV>[.<parm>]]]        Set/show boot console path
                                       (<DEV>=<RS232>|<GRAPH>
                                        <RS232>=rs232|rs232_2
                                        <parm>=<baud>.<length>.<parity>
                                        <GRAPH>=graphics|graphics_<1|2>
                                        <parm>=<monitor>)
Path [keyboard [hil|ps2]]              Set/show boot keyboard path
Pim [hpmc|toc|lpmc]                    Show PIM info
Search [ipl] [scsi|eisa]               Show potential boot devices
Search [ipl] [lan [install]]           Show potential boot LAN devices
Secure [on|off]                        Set/show security mode
----------------------------------------------------------------------------
BOOT_ADMIN> bo pri




Attempting to boot.

Loading Initial Program Loader


IPL successfully loaded


Booting
palo ipl 0.93 root@gandalf Sun Jul  8 12:19:37 CEST 2001
0/vmlinux32 2622963 bytes @ 0x48000
Partition Start(MB) End(MB) Id Type
1               1      22   f0 Palo
2              23      64   83 ext2
3              65     194   82 swap
4             195    2046   83 ext2
Current command line:
2/vmlinux-2.4.6-pa20 root=/dev/sda4 HOME=/ TERM=linux console=ttyS0
 0: 2/vmlinux-2.4.6-pa20
 1: root=/dev/sda4
 2: HOME=/
 3: TERM=linux
 4: console=ttyS0

Edit which field?
(or 'b' to boot with this command line)? b

Command line: 'root=/dev/sda4 HOME=/ TERM=linux console=ttyS0'

Kernel: partition 2 file /vmlinux-2.4.6-pa20
ext2 block size 1024
ext2_mount(partition 2) returns 0
ext2_open(/vmlinux-2.4.6-pa20) = 3
ELF32 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 1684160 mediaptr 0x1000
Segment 1 load 0029c000 size 191904 mediaptr 0x19d000
Segment 2 load 002cc000 size 255136 mediaptr 0x1cc000
Segment 3 load 0030c000 size 8192 mediaptr 0x20b000
Segment 4 load 003572d0 size 83456 mediaptr 0x20d2d0
branching to kernel entry point 0x00100000
Set default PSW W bit to 0

Dumping Stack from 105f4000 to 105f4c80:
4000 00000000 00000040 00000000 00000000 102b11e0 00000000 00000000 ffffffff
4020 00000002 00000000 00000000 00000000 00000000 00000000 ffffffff 102b10e0
4040 102b10e0 0000001e 105ec000 1030c000 102b7600 00000000 00000000 00000000
4060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 00000000
4080 00000000 1030c000 1030c000 105d8000 00000000 00000000 105d8098 1030c098
40a0 00000000 1034585c 105f40a8 105f40a8 105f4808 00000000 00000000 00000000
40c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 105f4000
40e0 10117914 00000000 00000001 00000000 00000000 0000001e 00000000 0000001f
4100 00000000 00000000 00000000 00000000 00000000 00000000 80000000 00000000
4120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
41a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
41c0 fffffeff 00000000 ffffffff 00000000 102b1e60 ffffffff ffffffff ffffffff
41e0 ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff ffffffff
4200 ffffffff 000007b5 000007b5 00000400 00000400 ffffffff ffffffff ffffffff
4220 ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000 00000000
4240 00000000 00000000 00000000 00000000 00000000 00000000 f000b858 f0000704
4260 00000001 00000001 00000000 102ccf54 0004000e 00000008 0000003f 00000000
4280 7f7fffff 0006e1c0 00007b5c 00800327 00000001 f0000704 00007b5c 00800327
42a0 00007b5c 102b2810 00000001 105fdca0 1026755c 0004000e 00000008 00000000
42c0 10100308 1011421c 00000000 00007b5c 00800327 10317810 10313627 00000008
42e0 00000024 0000003c 0000003e 102b1010 00000001 10313627 00000000 10313603
4300 10313603 00007b5c 00000000 00000000 40800000 00000000 1031b7dc 00000001
4320 1027b0bc 0006e1c0 00000000 7f7fffff 0006e1c0 00007b5c 00008124 00000000
4340 41800000 10155bf0 00000010 00000010 00000000 00000000 00000003 00000000
4360 1030c554 1027b2a8 00000000 1036c0c0 7fffffff 7fffffff 41000000 00000000
4380 7fffffff 10155bf0 40800000 00000000 41000000 00000000 00000003 00000000
43a0 1030c594 1027b0b4 00000000 1036ce40 41800000 7fffffff 40000000 00000000
43c0 40000000 1015564c 40800000 00000000 41000000 00000000 0000003f 0000416d
43e0 00000002 1030c598 000000f0 1036c240 00000000 1056f000 105ff040 00000000
4400 10265048 1012fc20 f00effff 00000000 00000000 105f4740 10106cf8 00000001
4420 000000f0 7f7fffff 000000f0 1036c0c0 002b8000 00000000 102b7040 102b7060
4440 102b71fc 00000000 00000000 00000000 105f444c 00000000 00000000 00000000
4460 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
44a0 00000000 00000000 00000000 10106c4c 00000000 00000000 00000000 00000000
44c0 1030c000 00000000 0900deee 00000000 00000000 00000000 00000000 00000000
44e0 00000000 00000000 00000000 1010031c 00000000 00000000 00000000 00000000
4500 00000000 0900deee 00000000 00000000 00000000 00000000 00000000 00000000
4520 00000000 00000000 00000000 102cd13c 00000000 00000000 00000000 00000000
4540 1030a428 1030a420 00000000 00000000 105f454c 00000324 00000000 105f454c
4560 105f454c 00000000 1030a4a0 102d43c0 00000000 00000000 00000000 00000000
4580 1030a42c 105f4000 102b7600 1030c000 1030a4a0 102e6dd4 102ccf54 0004000e
45a0 00000008 10345010 105f4000 102d439c 1030c000 1030a4a0 1030a408 00000000
45c0 10345010 105f4000 102b7600 1030c000 1030a4a0 1030a42c 105fdc20 0004000e
45e0 00000008 10345010 105f4000 102d3d40 1030c000 1030a4a0 1030a420 105f4548
4600 102e6e1c 102e6df8 102e6dd4 102b7600 102bb1b0 00000000 105fb2c0 102b3a28
4620 00008124 105f4548 1013ad3c 1010b1f8 00000000 00000000 00000000 00000000
4640 00000006 102bb3ac 10310394 00000000 fffffffd 102e6dd4 1030c000 102b3a28
4660 102c7010 102b2010 102b244c 1011985c 00000000 00000000 00000000 00000000
4680 102b12f0 102b1338 105fdd20 00000000 00000124 f0102804 1027c880 1027c85c
46a0 10345010 00000008 0004000e 102d432c 00000000 00000001 00000001 f0000704
46c0 f000b858 f0000704 f0102800 00000000 00000000 102ccf54 00000043 00000058
46e0 ffffffff 10310010 10310010 105f46c8 00000058 f0102804 105f48c0 1012bd74
4700 102b12f0 102b1338 105f21a0 00000007 0000416d 102bb158 1027c87f 00000000
4720 00000000 00000000 00000000 1011421c 00000000 00000000 40800000 00000000
4740 10313635 00000008 00000032 0000003c 0000003e 102b1010 00000001 10313635
4760 10310010 10313603 10313603 00000058 00000010 00000010 00000000 00000000
4780 102b12f0 102b1338 105f24a0 00000007 0000416d 102bb100 105f2520 7fffffff
47a0 105f26a0 105fb2e0 7fffffff 10155e3c 40800000 00000000 0004000e 00000008
47c0 102a3010 10310010 10310010 f0102800 00000058 f0102804 0000416d 102bb100
47e0 0000416d 00000000 40000000 101198a0 40800000 00000000 41000000 00000000
4800 102bb0a8 00000000 00000000 105e8060 00000001 00000001 00000001 1027c7a4
4820 00000000 00000000 10155bb4 102d4200 f00effff 00000000 0004000e 00000008
4840 00000058 f0102800 105f26a0 105e8060 00000002 102ccf54 00000000 102b1010
4860 ffffffff 00000058 f0102800 10197cb4 105e8060 00000002 00000000 102ccf54
4880 105f26a0 105e8060 105f1c00 105f46c8 0000000f 00000000 1027c7a6 105fb300
48a0 105e0000 00000000 00000000 10194268 00000000 00000000 00000000 00000000
48c0 102b1010 ffffffff 00000058 f0102800 105f26a0 105e8060 105e8060 10313605
48e0 00000058 10313603 10313603 10102b18 00000000 00000000 00000000 00000000
4900 1019aa5c 00000058 ffffffff 0000000a 102ba810 00000000 105fb300 105e8060
4920 00000000 00000000 00000000 10198064 00000000 00000000 00000000 00000000
4940 102b12f0 102b1338 105fdd20 00000003 0000416d 105f1f1c 105f21a0 102b2448
4960 00000002 102b2010 102b244c 10198a9c 00000000 00000000 00000000 00000000
4980 ffffffff 105e8060 f0102800 105f26a0 105e8060 105e8060 1029491c 105f4949
49a0 00000000 00000002 f000b858 1011985c 0000000f 00000001 00000000 102ccf54
49c0 102b12f0 102b1338 105f21a0 00000007 0000416d 105f1ec4 105f24a0 105fb2e0
49e0 00000000 00000002 f000b858 101987dc 00000001 00000001 00000000 102ccf54
4a00 102c73e8 105fb300 00000010 00000002 ffffffff 105f24a0 105f4894 105e8060
4a20 00000001 102b2010 102b244c 1011985c 00000000 00000000 00000000 00000000
4a40 0004000f 10345010 101987dc 105e8060 0000000c 105fb2e0 000f4000 10345010
4a60 00000051 102b1010 00000000 102ccf54 00000000 00000001 00000001 f0000704
4a80 f000b858 00000002 00000000 00000000 1056e1e0 00000000 10208a68 105fb300
4aa0 0000000c 00002802 00000000 1029c010 00000000 00000160 105f4c80 10102b18
4ac0 000d081f 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4ae0 00000000 00000000 00000000 00000000 00000000 00000000 40800000 00000000
4b00 7fffffff 7fffffff 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
4b20 00000000 00000000 41800000 00000000 00000010 00000010 00000000 00000000
4b40 7fffffff 7fffffff 41000000 00000000 40800000 00000000 7fffffff 7fffffff
4b60 41000000 00000000 7fffffff 7fffffff 40800000 00000000 41000000 00000000
4b80 40300000 00000000 40200000 00000000 40200000 00000000 41800000 7fffffff
4ba0 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
4bc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4be0 00000000 00000000 1010d5ac 1010d5b0 f00effff 00000000 00000000 00000000
4c00 00000006 00000018 0e781096 00000000 0000000c 00000000 00000000 00000000
4c20 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4c40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
4c60 00000000 00000000 00000000 10107748 00000000 00000000 00000000 00000000

Kernel Fault: Code=26 regs=105f4a40 (Addr=0000000c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111
r0-3     00000000 10345010 101987dc 105e8060
r4-7     0000000c 105fb2e0 000f4000 10345010
r8-11    00000051 102b1010 00000000 102ccf54
r12-15   00000000 00000001 00000001 f0000704
r16-19   f000b858 00000002 00000000 00000000
r20-23   1056e1e0 00000000 10208a68 105fb300
r24-27   0000000c 00002802 00000000 1029c010
r28-31   00000000 00000160 105f4c80 10102b18
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1010d5ac 1010d5b0
 IIR: 0e781096    ISR: 00000000  IOR: 0000000c
 ORIG_R28: 00000000

--------------4CC60164A75AC93662149227--





From - Thu Nov 08 21:18:36 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel crashs on 715/100
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=?iso-8859-1?Q?R=FCdiger?= Scholz wrote:
...
> System.map and Config-File of the Kernel are available at
> http://www.tu-darmstadt.de/~rscholz .

I tried to look at these files but the white space was trashed.
So I can't look up symbols. I wanted to know what GR02 and IOAQ point at.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:18:36 2018
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Subject: Re: [parisc-linux] Kernel crashs on 715/100
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Grant Grundler schrieb:

> I tried to look at these files but the white space was trashed.
> So I can't look up symbols. I wanted to know what GR02 and IOAQ point at.
>
> grant
>
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

Hello Grant,

GR02 has the value 101987dc
I0AQ ha the values 1010d5ac and 1010d5b0.

a.c from "build-tools" says " 0x1010d5ac outb+2c" and "0x1010d5b0 outb+30

I also refresh the files on th server. Now they are readable... ;-)

Thanks for your help,

            Rdiger





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Subject: Re: [parisc-linux] Kernel crashs on 715/100
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   of "Fri, 20 Jul 2001 11:21:23 +0200." <3B57F813.1B47E511@hrzpub.tu-darmstadt.de> 
Xref: news.gmane.org gmane.linux.ports.parisc:11703

=?iso-8859-1?Q?R=FCdiger?= Scholz wrote:
> a.c from "build-tools" says " 0x1010d5ac outb+2c" and "0x1010d5b0 outb+30

My theory: Some driver is attempting outb() to a device which isn't on
a supported bus. ie outb is dereferencing a NULL bus_ops ptr.
The right way to find the culprit is to unwind the stack
by hand to find who called outb.

Seems removing the offending driver from the .config should solve
the problem for now.  The right fix is to modify the driver so it
doesn't poke IO port space unless it's clear the device lives under
a suppported bus.

> I also refresh the files on th server. Now they are readable... ;-)

http://homepages.tu-darmstadt.de/~rscholz/ gives me:
	Forbidden
	You don't have permission to access /~rscholz/ on this server.

and http://homepages.tu-darmstadt.de/~rscholz/minicom.cap
give me a 404 (Not Found).

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:18:36 2018
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From: "Bjoern A. Zeeb" <bzeeb+hplinux@zabbadoz.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715/100 with 0.92 not booting :(
Date: Fri, 20 Jul 2001 20:18:36 +0200 (CEST)
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Xref: news.gmane.org gmane.linux.ports.parisc:11704

Hi,

had a beta0.5 running for a long time now on my 715/100 and tried to
update to 0.92 from esiee.fr.

attached console log from boot. anyone any ideas ?

if anybody needs further informations feel free to contact me
(on|off)list.


PS: it's a bit confusing with those different iso images on different
"mirrors" with different versionizing :(

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


--- snipp ---
BOOT_ADMIN> Path
Primary boot path:    scsi.0.0
Alternate boot path:  scsi.5.0
Console path:         rs232.9600.8.none
Keyboard path:        ps2
BOOT_ADMIN> boot
0x06.C740




Attempting to boot.

Loading Initial Program Loader

0x06.C580

IPL successfully loaded


Booting
0x06.C7FF
palo ipl 0.92 root@spqr Mon Jun 25 23:03:13 CEST 2001
0/vmlinux32 2853588 bytes @ 0x6ad6800
0/vmlinux64 3585851 bytes @ 0x6d8f800
0/ramdisk 1991209 bytes @ 0x70fb000

Command line: 'root=/dev/ram console=ttyS0 TERM=vt102'

Kernel: partition 0 file /vmlinux
Ramdisk: partition 0 file /ramdisk
Warning: kernel name doesn't end with 32 or 64... Guessing Annoyance: Firmware does not support PDC_MODEL_CAPABILITIES call
32
ELF32 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1606948 mediaptr 0x1000
Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
Loading ramdisk 1991209 bytes @ 05e09000...
branching to kernel entry point 0x00100000
Set default PSW W bit to 0
0x02.CBF0
0x02.7000

GRs

0x00000000
0x00000000
0xF4100000
0x00000001
0xF5000000
0x00000003
0x00000001
0xF0025328
0x0000000D
0xF0305698
0xF4300000
0x00000000
0x00080BEF
0x00010000
0x00000005
0x00000032
0x00000000
0x00283BAB
0x00000001
0x00000000
0x00000000
0xF0025000
0x00000500
0x0B00002D
0x00000001
0x00000000
0x00283BAB
0x1028A010
0x00000001
0xF0305698
0x003058D8
0x004F13E8

CRs

0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x000000C0
0x0000001C
0x00000000
0x00000000
0x00105800
0xFFFFFFFF
0x61E1EC6A
0x00000000
0x004F0944
0xB3202000
0x00000000
0x004F0964
0x00007F00
0x80000000
0x002A6000
0x002A6000
0xFFCE99FE
0x0900DEEE
0xAAAAAAAA
0xF0002000
0x00000000
0xF00EFFFF

SRs

0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000

OTHER

0x00000000
0x004F0948
0x20000000
0x9E000004
0x00000000
0x00000000
0x00000000
0x00310000
0x00000000
0x00000000
0x00000000
0xF0305710
0xFFFBE000
0x00000000
0x00000082
0x2C1048E6
0x3AB80550

0x02.CBFB
cu: Got hangup signal
^[[A

Disconnected.
bz@accu:~> cu -l /dev/ttyS0
Connected.
0000000 00000000 00000000
2120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
21a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
21c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
21e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2200 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2220 00000000 00000000 004f0944 004f0948 f00effff 00000000 00000000 00000000
2240 00000000 0000001c b3202000 00000000 004f0964 00000000 00000000 00000000
2260 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2280 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
22a0 00000000 00000000 00000000 10106750 00000000 00000000 00000000 00000000
22c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
22e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2300 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2320 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2340 00000000 00000000 0000001f 00296000 002a6000 f0012870 00000000 00000000
2360 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2380 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
23a0 00000000 00000000 00000000 10102220 00000000 00000000 00000000 00000000
23c0 00000000 00000000 00000001 10292080 00000000 00000000 00000000 f0002840
23e0 00310000 00000030 f0305698 0000000d f0002848 00000000 00000000 00000001
2400 10292080 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2420 00000000 00000000 00000000 10102614 00000000 00000000 00000000 00000000
2440 102565e4 00000001 10292080 00000000 00000000 00000000 00000000 00000000
2460 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2480 00000000 00000000 00000000 00000000 00000000 003058d8 00304000 10256774
24a0 00000000 00000000 00000000 10102568 00000000 00000000 00000000 00000000
24c0 0004000e 10337010 10102614 00304000 003058d8 10256000 00000000 f0002848
24e0 0000000d f0305698 00000030 00310000 f0002840 00000000 00000000 f0305710
2500 10292080 00283bab 00000082 00000000 00000000 f0105800 01c9c380 00000060
2520 00000001 00000001 1029f3c0 1028a010 0000002a 00000000 10292700 00000000
2540 000d081f 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2560 00000000 00000000 00000000 00000000 00000000 00000000 40800000 00000000
2580 7fffffff 7fffffff 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
25a0 00000000 00000000 41800000 00000000 00000010 00000010 00000000 00000000
25c0 7fffffff 7fffffff 41000000 00000000 40800000 00000000 7fffffff 7fffffff
25e0 41000000 00000000 7fffffff 7fffffff 40800000 00000000 41000000 00000000
2600 40300000 00000000 40200000 00000000 40200000 00000000 41800000 7fffffff
2620 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
2640 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
2660 00000000 00000000 10102574 10102578 f00effff 00000000 00000000 00000000
2680 00000000 0000001f 0c701093 00000000 00304008 00000000 00000000 00000000
26a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
26c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
26e0 00000000 00000000 00000000 10106750 00000000 00000000 00000000 00000000

Kernel Fault: Code=15 regs=102924c0 (Addr=00304008)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110
r0-3     00000000 10337010 10102614 00304000
r4-7     003058d8 10256000 00000000 f0002848
r8-11    0000000d f0305698 00000030 00310000
r12-15   f0002840 00000000 00000000 f0305710
r16-19   10292080 00283bab 00000082 00000000
r20-23   00000000 f0105800 01c9c380 00000060
r24-27   00000001 00000001 1029f3c0 1028a010
r28-31   0000002a 00000000 10292700 00000000
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10102574 10102578
 IIR: 0c701093    ISR: 00000000  IOR: 00304008
 ORIG_R28: 00000000

--- snipp ---





From - Thu Nov 08 21:18:36 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] 715/100 with 0.92 not booting :(
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On Fri, Jul 20, 2001 at 08:18:36PM +0200, Bjoern A. Zeeb wrote:
> PS: it's a bit confusing with those different iso images on different
> "mirrors" with different versionizing :(

That's why 0.9.2 was released after we had 3 different versions of 0.9.1,
each with different bugs.

I don't know what your problem is until I see the System.map which
the 0.9.2 cd shipped with.  Does anyone have this?

-- 
Revolutions do not require corporate support.




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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Kernel crashs on 715/100
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On Friday 20 July 2001 19:59, you wrote:
> =?iso-8859-1?Q?R=FCdiger?= Scholz wrote:
> > a.c from "build-tools" says " 0x1010d5ac outb+2c" and "0x1010d5b0 outb+30
> ....
> Seems removing the offending driver from the .config should solve
> the problem for now.  The right fix is to modify the driver so it
> doesn't poke IO port space unless it's clear the device lives under
> a suppported bus.

I think the default defconfig should work on your machine and has all necessary and
currently working drivers enabled. Remove your .config, do a "make oldconfig" and 
build a new kernel from this configuration.

Greetings,
Helge





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how do people feel about merging 2.4.7 into our HEAD?  it seems to have
some interesting bugs fixed, and it might make merging with Alan easier.

Or shall we let some more of the dust settle from the 2.4.6 merge before
doing this?  AIUI, J200 (and similar class) machines are currently not
working, and there are issues with keyboards.  Anything else?

-- 
Revolutions do not require corporate support.




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> how do people feel about merging 2.4.7 into our HEAD?  it seems to have
> some interesting bugs fixed, and it might make merging with Alan easier.
> 
> Or shall we let some more of the dust settle from the 2.4.6 merge before
> doing this?  AIUI, J200 (and similar class) machines are currently not
> working, and there are issues with keyboards.  Anything else?

I've seen some weird failures after upgrading to 2.4.6:

1. ssh'ing into the box fails randomly with SIGPIPE. scp almost always
fails

2. ldd on any dynamically linked binary gives ld.so assertion errors

I haven't investigated this a whole lot, and it certainly doesn't seem
to affect everyone... 

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/




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I'd wait a bit on the 2.4.7 front, judging by the number of completion change
bugs left in the tree. Maybe merge 2.4.7 after a few patches pop out 8)

-- 
Alan Cox,			|    And the men we couldn't tame
Red Hat Inc			|    We drove them into the west
				|    Their songs and their stories still remain
http://www.redhat.com		 \   What became of all I left ?
					-- Show Of Hands




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On Fri, 20 Jul 2001, Matthew Wilcox wrote:

Hi,

> On Fri, Jul 20, 2001 at 08:18:36PM +0200, Bjoern A. Zeeb wrote:
> > PS: it's a bit confusing with those different iso images on different
> > "mirrors" with different versionizing :(
>
> That's why 0.9.2 was released after we had 3 different versions of 0.9.1,
> each with different bugs.

Great, got it - but why isn't this announced on parisc-linux.org ?
Putting .iso images or at least links to wouldn't be that bad on the
master site but no only on one mirror.


> I don't know what your problem is until I see the System.map which
> the 0.9.2 cd shipped with.  Does anyone have this?

Anything new about this ?

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/





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Subject: [parisc-linux] Re: Update debian-configs for 2.4.6
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I turned off aic7xxx for 64 bit, as it wanted endian.h which wasn't
available.  Have built kernel images, and then built boot-floppies
with them.

B180 graphical test:

  Keyboard was dead on boot, unplug/replug didn't help

B180 serial console test:

  Keyboard was dead after reboot in to second stage install

A500 serial console test:

  Keyboard was dead after reboot in to second stage install

Richard





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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] 2.4.7
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Xref: news.gmane.org gmane.linux.ports.parisc:11712

Matthew Wilcox wrote:
> 
> how do people feel about merging 2.4.7 into our HEAD?  it seems to have
> some interesting bugs fixed, and it might make merging with Alan easier.

For me, merging with Alan is more important than the bug fixes.
I think we should track the releases as closely as we can until
Alan/Linus can build a usable parisc kernel from their tree.

BTW, I looked in 2.4.7 already and it doesn't have the changes
whic Ivan K and I worked out. I guess .7 got released before Ivan
had the other arches done (besides alhpa/parisc).

On a related note, I'd like to get ESIEE's 0.92 ISOs available
on parisc-linux.org website. mkhppa1.esiee.fr website been blocked by
their local admin or something. I was going to add a link on
parisc-linux but won't until I can reach it.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] 2.4.7
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Xref: news.gmane.org gmane.linux.ports.parisc:11713

Randolph Chung wrote:
> > how do people feel about merging 2.4.7 into our HEAD?  it seems to have
> > some interesting bugs fixed, and it might make merging with Alan easier.
...
> I've seen some weird failures after upgrading to 2.4.6:


Oh! I forgot to mention the the problem with GR03 getting
trashed when attempting to use pppd. I had posted earlier:
  http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/013176.html

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: Re: [parisc-linux] 715/100 with 0.92 not booting :(
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"Bjoern A. Zeeb" wrote:
...
> > That's why 0.9.2 was released after we had 3 different versions of 0.9.1,
> > each with different bugs.
> 
> Great, got it - but why isn't this announced on parisc-linux.org ?
> Putting .iso images or at least links to wouldn't be that bad on the
> master site but no only on one mirror.

I wanted to fix that. But the ESIEE website (mkhppa1.esiee.fr)
hasn't been accessible the past couple of days. We need to work something
out with them so the bits are available directly from www.parisc-linux.org.

Oh - and the ESIEE team does have access to parisc-linux website.
They just may not know it yet. ;^)

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: 0.9.2 isos (was Re: [parisc-linux] 715/100 with 0.92 not booting :( )
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Grant Grundler writes...

> "Bjoern A. Zeeb" wrote:
> ...
> > > That's why 0.9.2 was released after we had 3 different versions of 0.9.1,
> > > each with different bugs.
> > 
> > Great, got it - but why isn't this announced on parisc-linux.org ?
> > Putting .iso images or at least links to wouldn't be that bad on the
> > master site but no only on one mirror.
> 
> I wanted to fix that. But the ESIEE website (mkhppa1.esiee.fr)
> hasn't been accessible the past couple of days. We need to work something
> out with them so the bits are available directly from www.parisc-linux.org.

BTW- The isos have been available since July 10th at,

ftp://puffin.external.hp.com/pub/parisc/cd-images/

It's just the website that needs updating.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation




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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] FWD: LWE SF
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I was asked to forward this to the list FYI:

Debian booth info at LWCE at end of August in SF. -randolph

----- Forwarded message from Sean 'Shaleh' Perry <shaleh@valinux.com> -----

From: "Sean 'Shaleh' Perry" <shaleh@valinux.com>
To: bad@bad.debian.net
Subject: LWE SF
Date: Tue, 24 Jul 2001 14:07:39 -0700

One month and counting boys and girls.

We are once again not listed in the .org pavillion manifest (-:  I am
looking into this and expect it to be fixed by week's end.

There are two Debian talks scheduled.  Both on the Sys Admin track.  I
have one Tues. 28th at 3:30pm "Debian for the curious" where I talk
about Debian sysadmin tasks.  Wichert has one Wed. 29th at 1pm talking
about making Debian LSB complient.  A BOF would be nice, someone please
organize this.

I am having T-shirts made once again.  Ther ewill be:

200 XL
 20  L
 20  M
 20 2X
 20 3X

and due to many requests --- ladies sizes!

  5 S
 10 M
  6 L
  4 Xl

Total of 305.

The ladies will be just the swirl, the mens shirts are the standard
debian/rules shirts.  This year the shirts are black with all red text.

Prices will be $10 for the standard shirts, $15 for the 2X, 3X and
ladies sizes.  Sorry ladies but the shirts cost me just as much as the
3X's.

Booth workers and card carrying debian developers can get shirts for $7
or $10 (depending on the shirt) -- please only one shirt at the discount
rate.

That about sums things up for now.
_______________________________________________
Bay Area Debian mailing list
Bad@bad.debian.net
http://bad.debian.net/cgi-bin/mailman/listinfo/bad

----- End forwarded message -----

-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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On Thu, Jul 19, 2001 at 03:22:18PM +0100, Scammell, David wrote:
> 
> Hi,
> 
> I installed with 9.2, no problems, updated with apt-get.
> 
> I'd like to build my own kernel to test out a disk problem I have.
> 
> When I attempt anything which would fill the scsi disk queue with pending
> writes
> (e.g. tar xf kernel.tar), then machine hangs, I get some messages on the
> serial
> console which I've not got them written down yet, but these include a mount
> read
> only message. I'm using an old 2Gb disk (info not to hand, I'm at work), but
> no so
> old it shouldn't handle tagged writes. I'd like to change the queue depth
> and bus
> sync speed (looks like its set at 20Mhz, not 10Mhz) to see if this makes a
> difference.

Could you try with disconnect/reselect turned off?  Should be able
to do that by booting with "sim700=nodisc:0xff".

Richard





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To: Matthew Wilcox <willy@debian.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:11718

On Fri, Jul 20, 2001 at 07:29:00PM +0100, Matthew Wilcox wrote:
> On Fri, Jul 20, 2001 at 08:18:36PM +0200, Bjoern A. Zeeb wrote:
> > PS: it's a bit confusing with those different iso images on different
> > "mirrors" with different versionizing :(
> 
> That's why 0.9.2 was released after we had 3 different versions of 0.9.1,
> each with different bugs.
> 
> I don't know what your problem is until I see the System.map which
> the 0.9.2 cd shipped with.  Does anyone have this?

It's on the ISO dists/sid/main/disks-hppa/sys_map.gz or similar.

Richard





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From: "Scammell, David" <David.Scammell@uk.wmmercer.com>
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Subject: RE: [parisc-linux] 715/33 disk and kernel make dep problems
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Will try that tonight.

I managed to compile 2.4.6-pa21 out of cvs a few days ago,
same problem. A new version of make came down from debian
a few days ago which may of helped the make dep problems,
however it still stops, the scsi problems may affect make
dep possibly, even though i'm compling over nfs.

I've not had time to change the sync speed between crashes
but i'll get there.

Sorry there is no oops yet, I'm using an X terminal with
the serial line plugged in for the console.

BTW 2.4.6-pa21 does not appear to listen for console input,
at least not during the interactive fsck phase following a
crash, did that break recently?

regards
Dave

> -----Original Message-----
> From: Richard Hirst [mailto:rhirst@linuxcare.com]
> Sent: 25 July 2001 16:27
> To: Scammell, David
> Cc: 'parisc-linux@lists.parisc-linux.org'
> Subject: Re: [parisc-linux] 715/33 disk and kernel make dep problems
> 
> 
> On Thu, Jul 19, 2001 at 03:22:18PM +0100, Scammell, David wrote:
> > 
> > Hi,
> > 
> > I installed with 9.2, no problems, updated with apt-get.
> > 
> > I'd like to build my own kernel to test out a disk problem I have.
> > 
> > When I attempt anything which would fill the scsi disk 
> queue with pending
> > writes
> > (e.g. tar xf kernel.tar), then machine hangs, I get some 
> messages on the
> > serial
> > console which I've not got them written down yet, but these 
> include a mount
> > read
> > only message. I'm using an old 2Gb disk (info not to hand, 
> I'm at work), but
> > no so
> > old it shouldn't handle tagged writes. I'd like to change 
> the queue depth
> > and bus
> > sync speed (looks like its set at 20Mhz, not 10Mhz) to see 
> if this makes a
> > difference.
> 
> Could you try with disconnect/reselect turned off?  Should be able
> to do that by booting with "sim700=nodisc:0xff".
> 
> Richard
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 


*************************** IMPORTANT NOTE **************************
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Subject: Re: [parisc-linux] 715/100 with 0.92 not booting :(
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On Wed, 25 Jul 2001, Richard Hirst wrote:

> On Fri, Jul 20, 2001 at 07:29:00PM +0100, Matthew Wilcox wrote:
> > I don't know what your problem is until I see the System.map which
> > the 0.9.2 cd shipped with.  Does anyone have this?
>
> It's on the ISO dists/sid/main/disks-hppa/sys_map.gz or similar.

I already mailed it to him the same evening.

Anybody else an idea what the prob. could be ?

Perhaps I just missed something ? Or if you need any further
information I still can boot into the 0.5beta.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/





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From: "Sean J. Anaya" <sanaya@gr.hp.com>
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Subject: [parisc-linux] Help on install
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Hello all,

I'm attempting to to install HP Linux on a C180XP
Has anyone had success install V0.9 on this type
of machine?

The problem I'm having is that when booting from
a CD, created with the current CD image on the 
web site, the system just hangs in the boot 
process after Serial driver has been enabled.

Any help would be greatly appreciated.

Thanks!

Sean Anaya
sanaya@gr.hp.com




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: [parisc-linux] Re: 0.9.2 isos
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Xref: news.gmane.org gmane.linux.ports.parisc:11722

Matt Taggart wrote:
> BTW- The isos have been available since July 10th at,
> 
> ftp://puffin.external.hp.com/pub/parisc/cd-images/
> 
> It's just the website that needs updating.

Updated.
Someone who has a clue what the errata for 0.9.2 is
should update web/src/release-0.9/errata-092.x page.
(ie add what the original problem was)

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Hello,

I just wanted to know whether there is something
like a database where I can look up all the
unfinished tasks/unsupported hardware ?
(E.g. just like an additional entry in the
hardware database).

I'm writing this, because all the information
on the website (e.g. ToDo-list, or the 'supported
hardware' web page) are quite outdated or not
very accurate/detailed. So potential Linux/HPPA
users have to read the mailing lists carefully
and/or ask (maybe annoying) questions.

Since I'm not a (PA)linux kernel and HP expert
(and many people out there aren't either), I
just want to know what machine is supported
(and how good).

E.g. I own a HP9000/730, a HP9000/807/F10 and
a HP9000/780/C180; know I want to know on what
machines I can install and use Linux/HPPA successfully
and on what computers I should stick on HP/UX
(other user might use NeXTSTEP).

Switching to linux also depends on the supported aux. hardware
(parallel/serial ports, graphics, audio, ethernet and
pci/eisa bus): for some is parallel port support
very important, for others not ...

Therefore I would like some kind of up-to-date
database, where I can lookup all hardware
(like the h/w database) AND the current state of
the corresponding driver.

Greetings max

PS: keep on the good work!!!





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"M. Grabert" writes...

> Hello,
> 
> I just wanted to know whether there is something
> like a database where I can look up all the
> unfinished tasks/unsupported hardware ?

On the main http://parisc-linux.org page there is a link under the "PA-RISC
FAQ" section called "Where do I find the project todo list?". If you click
on that link it takes you to a page that explains that the todo list is
tracked by the Bug Tracking System at,

http://bugs.parisc-linux.org

It is open to all to use. If you find bugs or know about unfinished tasks
please file them.

> I'm writing this, because all the information
> on the website (e.g. ToDo-list, or the 'supported
> hardware' web page) are quite outdated or not
> very accurate/detailed. So potential Linux/HPPA
> users have to read the mailing lists carefully
> and/or ask (maybe annoying) questions.

You're right the website is out of date. If you have additions for the FAQ
or website please post them to the list, we'd love to have them.

> Since I'm not a (PA)linux kernel and HP expert
> (and many people out there aren't either), I
> just want to know what machine is supported
> (and how good).

On the 0.9 release page,

http://parisc-linux.org/release-0.9/index.html

there are links for systems supported and errata. Again if you have additions
please send them.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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Xref: news.gmane.org gmane.linux.ports.parisc:11725

> I'm attempting to to install HP Linux on a C180XP
> Has anyone had success install V0.9 on this type
> of machine?

I'm still trying to install 0.9.2 on a C180, too.
 
> The problem I'm having is that when booting from
> a CD, created with the current CD image on the
> web site, the system just hangs in the boot
> process after Serial driver has been enabled.

My expirence is that the DINO I/O chip seems to be the key 
element for that problem. Version 1.x of this chip crashes the 
system like you describe it (crash during boot ... :-( ) My 
DINO version (2.1) allows at least boot the system but the 
system crashes when I try to do the next steps within the 
installation procedure.

One tip i got in this mailing list was to try to install over 
network / NFS.

My problem at present is that the TP port of my C180 box seems 
to be broken, because i can't get a connection to my Intel 
Linux box. I tried to use either 100 Mbps as well as 10 Mbps on 
my Intel Linux box. The AUI-Ethernet port I can't test because 
I've not glue box from my Intel Linux TP ethernet adaptor to 
the AUI ethernet port of my C180 ...

Anybody outthere with an idea in this area ?

Thanks a lot !

Reinhard.




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Re: Help on install
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Xref: news.gmane.org gmane.linux.ports.parisc:11726

On Thu, Jul 26, 2001 at 06:48:42PM +0200, Reinhard Gimbel wrote:
> My expirence is that the DINO I/O chip seems to be the key 
> element for that problem. Version 1.x of this chip crashes the 
> system like you describe it (crash during boot ... :-( )

Oooh.  That was the vital clue, see this note from the source:

** "HP has discovered a potential system defect that can affect
** the behavior of five models of HP VISUALIZE workstations when
** equipped with third-party or customer-installed PCI I/O expansion
** cards. The defect is limited to the HP C180, C160, C160L, B160L,
** and B132L VISUALIZE workstations, and will only be encountered
** when data is transmitted through PCI I/O expansion cards on the
** PCI bus. HP-supplied graphics cards that utilize the PCI bus are
** not affected."

Maybe we're triggering this bug... grant?


-- 
Revolutions do not require corporate support.




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Re: Help on install
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   of "Thu, 26 Jul 2001 18:48:42 +0200." <01072618484200.01103@octopus> 
Xref: news.gmane.org gmane.linux.ports.parisc:11727

Reinhard Gimbel wrote:
> My expirence is that the DINO I/O chip seems to be the key 
> element for that problem. Version 1.x of this chip crashes the 
> system like you describe it (crash during boot ... :-( )

You have Dino 1.x ? I didn't think HP ever shipped those to customers.
Or did you mean another chip?
Perhaps post the console log output?

> My 
> DINO version (2.1) allows at least boot the system but the 
> system crashes when I try to do the next steps within the 
> installation procedure.

On C180 that's most likely the problem with ccio driver.
That's a known bug(s?)  that ryan bradetich hasn't been able to solve yet.
If you can help ryan, mail him.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:18:38 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Re: Help on install
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To: Matthew Wilcox <willy@debian.org>
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   of "Thu, 26 Jul 2001 18:35:26 BST." <20010726183526.A27258@parcelfarce.linux.theplanet.co.uk> 
Xref: news.gmane.org gmane.linux.ports.parisc:11728

Matthew Wilcox wrote:
> ** "HP has discovered a potential system defect that can affect
> ** the behavior of five models of HP VISUALIZE workstations when
> ** equipped with third-party or customer-installed PCI I/O expansion
> ** cards. The defect is limited to the HP C180, C160, C160L, B160L,
> ** and B132L VISUALIZE workstations, and will only be encountered
> ** when data is transmitted through PCI I/O expansion cards on the
> ** PCI bus. HP-supplied graphics cards that utilize the PCI bus are
> ** not affected."
> 
> Maybe we're triggering this bug... grant?

Perhaps...updating the firmware to the latest will not let the system
boot if in fact that's the case. remove all PCI devices and then
the system will boot.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Xref: news.gmane.org gmane.linux.ports.parisc:11729

Hi,

  I'm posting as a totally newbie in parisc-linux arena. Any one has any
advice regarding setting up the kernel to the above machine? 

TL





From - Thu Nov 08 21:18:38 2018
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From: Roy Bryant <roybryant@SEVENtwentyfour.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Broken link in www.parisc-linux.org
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There appears to be a problem on this page of your site.

    On your page http://www.parisc-linux.org/weekly/20000310.html
    when you click on your link to http://www.parisc-linux.org/lists.html
    you get the error: Not found

As recommended by the Robot Guidelines, this email is to explain our robot's
activities and to let you know about one of the broken links we encountered.
LinkWalker does not store or publish the content of your pages, but rather
uses the link information to update our map of the World Wide Web.

Are these reports helpful? I'd love some feedback. If you prefer not to
receive these occasional error notices please let me know.

Roy Bryant

 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Roy Bryant, roybryant@seventwentyfour.com
 President
 SEVENtwentyfour Inc. ("Always watching the Web")
 http://www.seventwentyfour.com
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Subject: Re: [parisc-linux] 715/33 disk and kernel make dep problems
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Xref: news.gmane.org gmane.linux.ports.parisc:11731

On Wed, Jul 25, 2001 at 04:52:54PM +0100, Scammell, David wrote:
> Will try that tonight.
> 
> I managed to compile 2.4.6-pa21 out of cvs a few days ago,
> same problem. A new version of make came down from debian
> a few days ago which may of helped the make dep problems,
> however it still stops, the scsi problems may affect make
> dep possibly, even though i'm compling over nfs.
> 
> I've not had time to change the sync speed between crashes
> but i'll get there.
> 
> Sorry there is no oops yet, I'm using an X terminal with
> the serial line plugged in for the console.
> 
> BTW 2.4.6-pa21 does not appear to listen for console input,
> at least not during the interactive fsck phase following a
> crash, did that break recently?

There are some problems with console input atm.  Graphical console
k/b doesn't work on several machines, and when I tried a 2.4.6 based
installer the other day with serial console, the k/b was dead at
the start of stage two install (could have been the installer had
just crashed, of course).

I'll be trying to track down the serial console problem with the
installer next week.

Richard





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From: "Scammell, David" <David.Scammell@uk.wmmercer.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] 715/33 disk and kernel make dep problems
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> -----Original Message-----
> From: 'Richard Hirst' [mailto:rhirst@linuxcare.com]
> Sent: 27 July 2001 14:26
> To: Scammell, David
> Cc: 'parisc-linux@lists.parisc-linux.org'
> Subject: Re: [parisc-linux] 715/33 disk and kernel make dep problems
> 
> 
> On Wed, Jul 25, 2001 at 04:52:54PM +0100, Scammell, David wrote:
> > Will try that tonight.
> > 
> > I managed to compile 2.4.6-pa21 out of cvs a few days ago,
> > same problem. A new version of make came down from debian
> > a few days ago which may of helped the make dep problems,
> > however it still stops, the scsi problems may affect make
> > dep possibly, even though i'm compling over nfs.
> > 
> > I've not had time to change the sync speed between crashes
> > but i'll get there.
> > 
> > Sorry there is no oops yet, I'm using an X terminal with
> > the serial line plugged in for the console.
> > 
> > BTW 2.4.6-pa21 does not appear to listen for console input,
> > at least not during the interactive fsck phase following a
> > crash, did that break recently?
> 
> There are some problems with console input atm.  Graphical console
> k/b doesn't work on several machines, and when I tried a 2.4.6 based
> installer the other day with serial console, the k/b was dead at
> the start of stage two install (could have been the installer had
> just crashed, of course).
> 
> I'll be trying to track down the serial console problem with the
> installer next week.
> 

The kernel command option you gave me, simxxxx, appeared to
work last night. Am I switching off disconnects, I've not 
looked at the source?

However it occured to me this morning that
serial console input worked last night at run level 2, using 
the same kernel as above, I never noticed as I typed using it. 

Graphical console has never worked for me over the last two
weeks since getting installed (even with a getty attached to 
tty0 :), keyboard has always appeared dead.

Still having make dep problems, I may investigate which version of make
i'm using this weekend.

The 715/33 is surprisingly spritely with 48MB of ram, not bad for oldie.

regards
Dave

> Richard
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 


*************************** IMPORTANT NOTE **************************
The above information is confidential to the addressee and may be
privileged.  Unauthorised access and use is prohibited.  William M.
Mercer Limited is regulated by IMRO and the Personal Investment
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Hi,

also had an 0.9.1 iso (from ESIEE ) around an tried that.
Doesn't boot either (when booting from cdrom).

If anybody needs further information please let me know.

Would it make any difference if I also try 0.9-32serial ?

--- snipp ---
Kernel Fault: Code=15 regs=102924c0 (Addr=00304008)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110
r0-3     00000000 10337010 10102614 00304000
r4-7     003058d8 10256000 00000000 f0002848
r8-11    0000000d f0305698 00000030 00310000
r12-15   f0002840 00000000 00000000 f0305710
r16-19   10292080 00283bab 00000002 00000000
r20-23   00000000 f0105800 01c9c380 00000060
r24-27   00000001 00000001 1029f3c0 1028a010
r28-31   0000002a 00000000 10292700 00000000
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10102574 10102578
 IIR: 0c701093    ISR: 00000000  IOR: 00304008
 ORIG_R28: 00000000
--- snipp ---

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/





From - Thu Nov 08 21:18:38 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] HP 9000 D Class Enterprise server
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Xref: news.gmane.org gmane.linux.ports.parisc:11734

Tew Tee Li wrote:
>   I'm posting as a totally newbie in parisc-linux arena. Any one has any
> advice regarding setting up the kernel to the above machine? 

Depending on the model D-class, follow the discussion about
C180 and C200. The IO arch in both uses the same chip sets.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Reinhard Gimbel <Reinhard.Gimbel@freenet.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C180 DINO/PCI problem; was: Help on install (2)
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To: Grant Grundler <grundler@puffin.external.hp.com>
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Grant Grundler wrote:

> Reinhard Gimbel wrote:
> > My expirence is that the DINO I/O chip seems to be the key
> > element for that problem. Version 1.x of this chip crashes
> > the system like you describe it (crash during boot ... :-(
> > )
>
> You have Dino 1.x ? I didn't think HP ever shipped those to
> customers. Or did you mean another chip?
> Perhaps post the console log output?

A friend of mine has a C180 with DINO v1.x (according to the
boot messages of that box; I do not have a log of that box on 
hand at present).

The boot messages of my box (as posted in parisc-linux digest 
vol. 1 #204) looks like this:

[...]

Dino version 2.1 (bridge mode) found at 0xf2000000


The GSCtoPCI (Dino hrev 1) bus converter found may exhibit
data corruption. See Service Note Numbers: A4190A-01, A4191A-01.
Systems shipped after Aug 20, 1997 will not exhibit this problem.
Models affected: C180, C160, C160L, B160L, and B132L workstations.

dino_bridge_init: IO_ADDR_EN hasn't been configured.
kernel BUG at dino.c:808!

[...]

  YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111100100001110
r0-3   00000000 102b2810 101c97cc 1f7a3a00
r4-7   1f7a3a28 00000006 00000000 00000000
r8-11  1f7a2000 000000ff 1fe02a74 00000200
r12-15  102b2810 00000001 00000400 1f584688
r16-19  1f584588 00000000 00000000 dae998dc
r20-23  00000008 1e1fc500 00000000 0000000f
r24-27  00000000 00000006 1f7a2000 1028a010
r28-31  00000000 00000400 1f584dc0 101bd938
sr0-3  00000000 000000b5 00000000 000000b5
sr4-7  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101d3004 101d3008
IIR: 0e641288  ISR: 00000000 IOR: dae998e0
ORIG_R28: 1073e740

[...]


> > My
> > DINO version (2.1) allows at least boot the system but the
> > system crashes when I try to do the next steps within the
> > installation procedure.
>
> On C180 that's most likely the problem with ccio driver.
> That's a known bug(s?)  that ryan bradetich hasn't been able
> to solve yet. If you can help ryan, mail him.

Ryan, what further information do you need ? Up to now I tried 
to use the palinux-0.9.2 image of esiee.fr only. No kernel 
(cross-) compilations for parisc-linux on my Intel Linux box so 
far. No expirence with palo etc. What can I do to help to solve 
the problem ?

Reinhard.




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From: Reinhard Gimbel <Reinhard.Gimbel@freenet.de>
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Subject: [parisc-linux] C180 DINO/PCI problem; was: Help on install (1)
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	Matthew Wilcox <willy@debian.org>
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Grant Grundler wrote:

> Matthew Wilcox wrote:
> > ** "HP has discovered a potential system defect that can affect
> > ** the behavior of five models of HP VISUALIZE workstations when
> > ** equipped with third-party or customer-installed PCI I/O expansion
> > ** cards. The defect is limited to the HP C180, C160, C160L, B160L,
> > ** and B132L VISUALIZE workstations, and will only be encountered
> > ** when data is transmitted through PCI I/O expansion cards on the
> > ** PCI bus. HP-supplied graphics cards that utilize the PCI bus are
> > ** not affected."

Expect the GRAPHICS(3) graphics adaptor (which is an EISA card)
there is no expansion card installed in my C180. The 2 PCI slots
are not occupied by expansion cards.

I don't have too much knowledge of the architecture of HP
workstations, but aren't NCR SCSI chips part of the PCI
architecture in ordinary PCs ? Of course there must not be the
same way to implement the SCSI chip in the HP architecture ! But
who knowns ...

On the other hand the C180 had a working HP-UX 10.20 as I bought
it weeks ago. So there must be a software solution for the DINO
problem.

> > Maybe we're triggering this bug... grant?
>
> Perhaps...updating the firmware to the latest will not let
> the system boot if in fact that's the case. remove all PCI
> devices and then the system will boot.

No PCI device to remove (as an expansion card) ...

... but how about a firmware update ? My box has firmware
version 2.7. Is that o.k. so far ? Or is there a newer firmware
available ? The other questions is: Would a firmware upgrade
help to solve my problem ?

Reinhard.




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From: "Bjoern A. Zeeb" <bzeeb+hplinux@zabbadoz.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 0.9-32serial works :) [was: 715/100 0.9.1.iso]
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On Fri, 27 Jul 2001, Bjoern A. Zeeb wrote:

> Hi,
>
> also had an 0.9.1 iso (from ESIEE ) around an tried that.
> Doesn't boot either (when booting from cdrom).
>
> If anybody needs further information please let me know.
>
> Would it make any difference if I also try 0.9-32serial ?


Sorry for answering my own mail:

0.9-32serial successfully installed :)

so the problem is somewhere in the changes from 0.9 to 0.9.1/0.9.2

hope that helps you. as always - if you need any further details
please let me know.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/





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Xref: news.gmane.org gmane.linux.ports.parisc:11738

I've rebuilt a kernel with EARLY_BOOTUP_DEBUG defined in
linux/arch/parisc/kernel/pdc_console.c so I get some console output
before the crash.

The boot log looks like:

Firmware Version  4.7

Duplex Console IO Dependent Code (IODC) revision 1

Memory Test/Initialization Completed

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  Cache
Size
  ---------  --------   ---------------------  ----------------- 
----------
      0      160 MHz    Active                 Functional          64 KB


  Available memory (bytes)    :  134217728
  Good memory required (bytes):  134217728

  Primary boot path:    SESCSI.6.0
  Alternate boot path:  SESCSI.6.0
  Console path:         SERIAL_1.9600.8.none
  Keyboard path:        PS2

Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Booting...
Boot IO Dependent Code (IODC) revision 153

HARD Booted.
palo ipl 0.93 bame@palinux Wed Jul 11 11:08:57 MDT 2001
0/vmlinux32 2622963 bytes @ 0x8210000
Partition Start(MB) End(MB) Id Type
1               1     129   82 swap
2             130     139   f0 Palo
3             140    2046   83 ext2

Command line: 'root=/dev/sda3 HOME=/ TERM=linux console=ttyS0 debug'

Kernel: partition 3 file /vmlinux
ext2 block size 4096
ext2_mount(partition 3) returns 0
ext2_open(/vmlinux) = 3
ELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 1500308 mediaptr 0x1000
Segment 1 load 00270000 size 368640 mediaptr 0x170000
Segment 2 load 0030e74c size 75984 mediaptr 0x1ca74c
branching to kernel entry point 0x00100000
Linux version 2.4.6-pa22 (root@nelson) (gcc version 3.0 (Debian)) #5 Sat
Jul 28 14:40:32 BST 2001
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: Newer Box
model   00005020 00000481 00000000 02020202 7747d770 100000f0 00000004
000000ba 000000ba
vers    00000008
cpuid   000001e8
CPUID   vers 15 rev 8
model   9000/778/B160L
Total Memory: 128 Mb
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
PDC reported no LCD or LED.
Searching for devices...
Found devices:
1. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, versions 0x504, 0x0,
0x0, 0x0, 0x0<6>
2. Merlin L2 160 (9000/778/B160L) (0) at 0xfffbe000, versions 0x502,
0x0, 0x4, 0x0, 0x81<6>
3. Merlin 160/ThunderHawk Memory (1) at 0xfffbf000, versions 0x67, 0x0,
0x9, 0x0, 0x0<6>
4. Merlin 160 Core BA (11) at 0xffd00000, versions 0x3d, 0x0, 0x81, 0x0,
0x0<6>,  additional addresses: <6>0xffd0c000 <6>0xffc00000 <6>
5. Merlin 160 Core RS-232 (10) at 0xffd05000, versions 0x3d, 0x0, 0x8c,
0x0, 0x0<6>
6. Merlin 160 Core SCSI (10) at 0xffd06000, versions 0x3d, 0x0, 0x82,
0x0, 0x0<6>
7. Merlin 160 Core LAN (802.3) (10) at 0xffd07000, versions 0x3d, 0x0,
0x8a, 0x0, 0x0<6>
8. Merlin 160 Core Centronics (10) at 0xffd02000, versions 0x3d, 0x0,
0x74, 0x0, 0x0<6>,  additional addresses: <6>0xffd01000 <6>0xffd03000
<6>
9. Merlin 160 Core Audio (10) at 0xffd04000, versions 0x3d, 0x4, 0x7b,
0x0, 0x0<6>
10. Merlin 160 Core PS/2 Port (10) at 0xffd08000, versions 0x3d, 0x0,
0x84, 0x0, 0x0<6>
11. Merlin 160 Core PS/2 Port (10) at 0xffd08100, versions 0x3d, 0x0,
0x84, 0x0, 0x0<6>
12. Merlin 160 Wax BA (11) at 0xffe00000, versions 0x41, 0x0, 0x8e, 0x0,
0x0<6>
13. Merlin 160 Wax EISA BA (11) at 0xfc000000, versions 0x41, 0x0, 0x90,
0x0, 0x0<6>,  additional addresses: <6>0xf0184000 <6>
14. Merlin 160 Wax HIL (10) at 0xffe01000, versions 0x41, 0x0, 0x73,
0x0, 0x0<6>
15. Merlin 160 Wax RS-232 (10) at 0xffe02000, versions 0x41, 0x0, 0x8c,
0x0, 0x0<6>
16. Gecko GSC Core Graphics (10) at 0xf8000000, versions 0x16, 0x0,
0x85, 0x0, 0x0<6>,  additional addresses: <6>0xf0011000 <6>
17. Dino PCI Bridge (13) at 0xfff80000, versions 0x680, 0x1, 0xa, 0x0,
0x0<6>
18. Merlin+ 132 Dino PS/2 Port (10) at 0xfff81000, versions 0x22, 0x0,
0x96, 0x0, 0x0<6>
19. Merlin+ 132 Dino RS-232 (10) at 0xfff83000, versions 0x22, 0x0,
0x8c, 0x0, 0x0<6>
That's a total of 19 devices.
CPU(s): 1 x PA7300LC (PCX-L2) at 160.000000 MHz
Kernel command line: root=/dev/sda3 HOME=/ TERM=linux console=ttyS0
debug
Console: colour dummy device 160x64
Initialized PDC Console for debugging.
Calibrating delay loop... 106.49 BogoMIPS
Memory: 126616k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
Dino version 2.1 (bridge mode) found at 0xfff80000


The GSCtoPCI (Dino hrev 1) bus converter found may exhibit
data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.
Systems shipped after Aug 20, 1997 will not exhibit this problem.
Models affected: C180, C160, C160L, B160L, and B132L workstations.

dino_bridge_init: IO_ADDR_EN hasn't been configured.
kernel BUG at dino.c:806!
Lasi version 0 at 0xffd00000 found.
LED display at ffd0c000 registered
Wax at 0xffe00000 found.
Wax: HIL Keyboard-NMI registered.
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 152 [PCSPP,TRISTATE]
pty: 256 Unix98 ptys configured
lp0: using parport0 (interrupt-driven).
Serial driver version 5.05a (2001-03-20) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
ttyS00 at iomem 0xffd05800 (irq = 154) is a 16550A
ttyS01 at iomem 0xffe02800 (irq = 185) is a 16550A
ttyS02 at iomem 0xfff83800 (irq = 74) is a 16550A

Dumping Stack from 10038000 to 10038840:
8000 00000000 00000040 00000000 00000000 102853c0 00000001 00000000
ffffffff
8020 00000000 00000000 00000000 00000000 00000000 00000000 ffffffff
102852c0
8040 102852c0 00000090 10074000 102c8000 1028b600 00000000 00000000
00000000
8060 00000000 00000000 00000000 00000001 00000000 00000000 00000000
00000000
8080 00000000 102c8000 102c8000 10060000 00000000 00000000 10060098
102c8098
80a0 00000000 102fe51c 100380a8 100380a8 10038808 00000000 00000000
00000000
80c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
10038000
80e0 10119fa0 00000000 00000075 00000000 00000000 0000004a 00000000
000000be
8100 00000000 00000000 00000000 00000000 00000000 00000000 80000000
00000000
8120 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
8140 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
8160 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
8180 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
81a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
81c0 fffffeff 00000000 ffffffff 00000000 10285f84 ffffffff ffffffff
ffffffff
81e0 ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff
ffffffff
8200 ffffffff 000007ba 000007ba 00000400 00000400 ffffffff ffffffff
ffffffff
8220 ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000
00000000
8240 00000000 00000000 00000000 00000000 00000000 00000000 f0000c30
f0100000
8260 000000fd ffffffff ffffffff 1029ccd4 0004000e 0000004d 0000004e
f000a37c
8280 00043002 0006e180 00007ba6 00800327 00000000 00000000 00007ba6
00800327
82a0 00007ba6 10286810 ffffffff 1003fba0 10247c1c 0004000e 0000004d
00000000
82c0 10100130 1011841c 00000000 00007ba6 00800327 f0100000 102cf667
102cf666
82e0 00000024 0000003c 0000003e 10285010 00000001 102cf667 00000004
102cf643
8300 00000000 00000023 00000002 0000001d 00007ba6 00000000 ffffffff
00000001
8320 1025c8e4 0006e180 f000a37c 00043002 0006e180 00007ba6 00008124
102cf643
8340 00000000 101581a0 0000001d 00000800 00000000 00000002 002cb140
00000000
8360 002cb088 000003a8 00000000 00000003 ffd05000 00008000 00000005
10286010
8380 1028645c 10108ecc 00000040 00000000 00000000 00000002 0004000f
10000000
83a0 10108ecc 00000007 102cf65f 102701fc 102cf643 00000004 102cf667
00000001
83c0 10285010 10109060 0000003c 00000024 0000000f 102853ec 10285010
f0000174
83e0 00000020 ffd05800 ffd05800 ffd05800 ffd05800 00000060 ffffffff
ffd05800
8400 002cf080 10270010 00000000 00000060 102c88c0 10038740 10105cf8
00000000
8420 0000001f 00000000 0000001f 00000000 0028c000 00000000 1028b040
1028b060
8440 1028b1fc 00000000 00000000 00000000 1003844c 00000000 00000000
00000000
8460 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
8480 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
84a0 00000000 00000000 00000000 10105c4c 00000000 00000000 00000000
00000000
84c0 102c8000 00000000 ffffffff 00000000 00000000 00000000 00000000
00000000
84e0 00000000 00000000 00000000 10100144 00000000 00000000 00000000
00000000
8500 00000000 ffffffff 00000000 00000000 00000000 00000000 00000000
00000000
8520 00000000 00000000 00000000 1029ce6c 00000000 00000000 00000000
00000000
8540 102fe010 10038000 1028b600 102c8000 102c7b64 102c7b20 00000000
1003854c
8560 1003854c 00000000 102c7b64 102a24ec 00000000 00000000 00000000
00000000
8580 102c7b64 1029ccd4 0004000e 0000004d 102fe010 10286f04 1028b600
102c8000
85a0 102c7b64 102c7b18 10038000 102a4120 102c8000 102c7b64 102c7ae8
00000000
85c0 10293670 00000040 102e0400 102e0344 10293670 00000040 1025e298
1025e514
85e0 102df010 102df010 102c7b18 102a3c14 102c8000 102c7b64 102c7b08
10038548
8600 0004fe0f 10296810 102a3c14 10293010 10293738 102e0344 102e0400
10000080
8620 102906bc 0000004d 0004000e 1029ccd4 ffffffff ffffffff 000000fd
f0100000
8640 f0000c30 f0000174 00000020 1025e320 10296cf0 10296ce8 10296810
00000002
8660 10266fcc 102974bc 10293738 10270010 00000000 00000000 10038840
00000000
8680 000f0800 00000000 0000001f 00000000 0000001f 00000000 0000001f
00000000
86a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
86c0 00000010 00000020 7f7fffff ffffffff 43ebebeb e0000000 00000000
00000000
86e0 45e69c6a 25b7ea20 41800000 00000000 00000010 00000010 00000000
00000000
8700 00000040 00000080 00000100 00000200 00000400 00000800 7fffffff
7fffffff
8720 41000000 00000000 7fffffff 7fffffff 40800000 00000000 41000000
00000000
8740 40300000 00000000 40200000 00000000 40200000 00000000 41800000
7fffffff
8760 40000000 00000000 40000000 00000000 40800000 00000000 41000000
00000000
8780 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
87a0 00000000 00000000 102a3c24 102a3c28 f0102918 00000000 00000000
00000002
87c0 002cb140 0000001f 0e601200 00000000 1025e320 00000003 ffd05000
00008000
87e0 00000000 00000000 00000000 10108ecc 00000000 00000000 00000000
00000000
8800 0004000f 10000000 10108ecc 00000001 102cf676 102701fc 102cf646
00000004
8820 102cf678 00000001 10285010 10106748 0000003c 00000035 0000000f
102853ec

Kernel Fault: Code=26 regs=10038600 (Addr=1025e320)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111000001111
r0-3     00000000 10296810 102a3c14 10293010
r4-7     10293738 102e0344 102e0400 10000080
r8-11    102906bc 0000004d 0004000e 1029ccd4
r12-15   ffffffff ffffffff 000000fd f0100000
r16-19   f0000c30 f0000174 00000020 1025e320
r20-23   10296cf0 10296ce8 10296810 00000002
r24-27   10266fcc 102974bc 10293738 10270010
r28-31   00000000 00000000 10038840 00000000
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 102a3c24 102a3c28
 IIR: 0e601200    ISR: 00000000  IOR: 1025e320
 ORIG_R28: 00000000

Looks like it goes bang in probe_serial_pci to me as IAOQ is in that
function.

Full System.map and .config are at:

http://www.qzxyz.com/System.map
http://www.qzxyz.com/kernel.config

I can provide any other info required to track this down.

Cheers,
Scott




From - Thu Nov 08 21:18:38 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: C180 DINO/PCI problem; was: Help on install (2)
Date: Sun, 29 Jul 2001 12:42:56 -0600
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To: Reinhard.Gimbel@freenet.de
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Sun Jul 29 12:44:14 2001
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In-Reply-To: Message from Reinhard Gimbel <Reinhard.Gimbel@freenet.de> 
   of "Sat, 28 Jul 2001 12:35:20 +0200." <01072812322001.00935@octopus> 
Xref: news.gmane.org gmane.linux.ports.parisc:11739

Reinhard Gimbel wrote:
> > You have Dino 1.x ? I didn't think HP ever shipped those to
> > customers. Or did you mean another chip?
> > Perhaps post the console log output?
> 
> A friend of mine has a C180 with DINO v1.x (according to the
> boot messages of that box; I do not have a log of that box on 
> hand at present).

Ok. IIRC, early revs of dino mostly had problems with nested PCI-PCI
bridges. I'd need to review the dino errata and I don't have that with
me here.

> Dino version 2.1 (bridge mode) found at 0xf2000000
...
> dino_bridge_init: IO_ADDR_EN hasn't been configured.
> kernel BUG at dino.c:808!

hmm...the newer PDC isn't programming Dino or anything
below it since the PDC knows it's buggy. Seems like dino code
should just give up trying to walk the bus at this point.
I suspect that's crashing the box later.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:18:38 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: C180 DINO/PCI problem; was: Help on install (1)
Date: Sun, 29 Jul 2001 12:57:51 -0600
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   of "Sat, 28 Jul 2001 12:34:46 +0200." <01072812114300.00935@octopus> 
Xref: news.gmane.org gmane.linux.ports.parisc:11740

Reinhard Gimbel wrote:
> Expect the GRAPHICS(3) graphics adaptor (which is an EISA card)
> there is no expansion card installed in my C180. The 2 PCI slots
> are not occupied by expansion cards.
...
> On the other hand the C180 had a working HP-UX 10.20 as I bought
> it weeks ago. So there must be a software solution for the DINO
> problem.

Trust me. There isn't. On some of the boxes a HW workarond is possible.
But I'm not clear on if that ever got pushed out in replacement motherboards
to customers. I was under the impression the problem was "fixed" by
swapping for a motherboard with dino 3.1.

> > Perhaps...updating the firmware to the latest will not let
> > the system boot if in fact that's the case. remove all PCI
> > devices and then the system will boot.
> 
> No PCI device to remove (as an expansion card) ...

Ok.

> ... but how about a firmware update ? My box has firmware
> version 2.7. Is that o.k. so far? Or is there a newer firmware
> available ? The other questions is: Would a firmware upgrade
> help to solve my problem?

Definitely update. You want to know if your box is useable or not.

The FAQ has a nice section on firmware updates which I think
answers this set of questions.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:18:39 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Tracking down crash in 2.4.6 kernels on B160L
Date: Sun, 29 Jul 2001 13:46:32 -0600
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To: Scott Ashcroft <scott.ashcroft@talk21.com>
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In-Reply-To: Message from Scott Ashcroft <scott.ashcroft@talk21.com> 
   of "Sat, 28 Jul 2001 15:38:23 BST." <3B62CE5F.31181B7A@talk21.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:11741

Scott Ashcroft wrote:
> I've rebuilt a kernel with EARLY_BOOTUP_DEBUG defined in
> linux/arch/parisc/kernel/pdc_console.c so I get some console output
> before the crash.

Excellent. I've got good and bad news for you.
The good news is I think I know what the problem is.

...
> Looks like it goes bang in probe_serial_pci to me as IAOQ is in that
> function.

That makes sense. Your box has no serial under PCI right?

If not, the code in drivers/char/serial.c looks broken:

static int __devinit serial_init_one(struct pci_dev *dev,
                                     const struct pci_device_id *ent)
{
        struct pci_board *board, tmp;
        int rc;
  
        for (board = pci_boards; board->vendor; board++) { 
                if (board->vendor != (unsigned short) PCI_ANY_ID &&
                    dev->vendor != board->vendor)
                        continue;
...

If pci_boards is NULL...anyway, that code is gone in 2.4.7 and
we will merge up again with the linus' tree again shortly.

You could try to build a kernel w/CONFIG_PCI disabled.
If that config doesn't build, file a bug about the fact that it didn't build.
You could also file a bug against "kernel" project at bugs.parisc-linux.org
and that could be closed once someone demonstrated the next merge fixes the
problem. In short, please file at least one bug.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:18:39 2018
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Subject: Re: [parisc-linux] Tracking down crash in 2.4.6 kernels on B160L
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On Sun, Jul 29, 2001 at 01:46:32PM -0600, Grant Grundler wrote:
> Scott Ashcroft wrote:
> > I've rebuilt a kernel with EARLY_BOOTUP_DEBUG defined in
> > linux/arch/parisc/kernel/pdc_console.c so I get some console output
> > before the crash.
> 
> Excellent. I've got good and bad news for you.
> The good news is I think I know what the problem is.
> 
> ...
> > Looks like it goes bang in probe_serial_pci to me as IAOQ is in that
> > function.
> 
> That makes sense. Your box has no serial under PCI right?

Don't think so. Always detects one though.

> If not, the code in drivers/char/serial.c looks broken:
> 
> static int __devinit serial_init_one(struct pci_dev *dev,
>                                      const struct pci_device_id *ent)
> {
>         struct pci_board *board, tmp;
>         int rc;
>   
>         for (board = pci_boards; board->vendor; board++) { 
>                 if (board->vendor != (unsigned short) PCI_ANY_ID &&
>                     dev->vendor != board->vendor)
>                         continue;
> ...
> 
> If pci_boards is NULL...anyway, that code is gone in 2.4.7 and
> we will merge up again with the linus' tree again shortly.
> 
> You could try to build a kernel w/CONFIG_PCI disabled.
> If that config doesn't build, file a bug about the fact that it didn't build.
> You could also file a bug against "kernel" project at bugs.parisc-linux.org
> and that could be closed once someone demonstrated the next merge fixes the
> problem. In short, please file at least one bug.

OK and the bad news was?

Scott




From - Thu Nov 08 21:18:39 2018
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Subject: [parisc-linux] 2.4.7 merge
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Xref: news.gmane.org gmane.linux.ports.parisc:11743

Grant's found a good excuse to move up to 2.4.7, so let's try to do that
this week.  Paul, are you around to do the CVS stuff?  An initial `apply
the 2.4.7 patch to my tree' merge attempt shows 4 fails -- the expected
one in Makefile; arch/parisc/kernel/ptrace.c, drivers/char/serial.c and
drivers/scsi/sym53c8xx_defs.h.  I can see how to fix the ptrace & serial
conflicts; Richard says the sym53c8xx_defs conflict is also trivial,
so I don't anticipate any major problems.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] Tracking down crash in 2.4.6 kernels on B160L
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In-Reply-To: Message from Scott Ashcroft <scott.ashcroft@talk21.com> 
   of "Sun, 29 Jul 2001 21:01:00 BST." <20010729210100.A6411@cargoclaimsdirect.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:11744

Scott Ashcroft wrote:
> > If pci_boards is NULL...anyway, that code is gone in 2.4.7 and
> > we will merge up again with the linus' tree again shortly.
...
> OK and the bad news was?

I can't/shouldn't fix it right now in our tree.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: Re: [parisc-linux] 715/33 disk and kernel make dep problems
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Xref: news.gmane.org gmane.linux.ports.parisc:11745

On Fri, Jul 27, 2001 at 04:04:18PM +0100, Scammell, David wrote:
> The kernel command option you gave me, simxxxx, appeared to
> work last night. Am I switching off disconnects, I've not 
> looked at the source?

Yes, that turns off disconnects on all scsi IDs.

Richard





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Hi list,

I've been trying to compile a new kernel on my 712/80 (128MB RAM) while
running 2.4.0-pa25. I downloaded linux-latest.tar.gz (2.4.6-pa22),
configured, and "make dep" with no problems. "make palo" gets to the
end, and errors out with:

ld -T /usr/src/parisc-linux/linux/arch/parisc/vmlinux.lds 
arch/parisc/kernel/head.o  init/main.o init/version.o \
--start-group \
arch/parisc/kernel/pdc_cons.o arch/parisc/kernel/process.o
arch/parisc/lib/lib.a arch/parisc/mm/mm.o arch/parisc/kernel/kernel.o
arch/parisc/hpux/hpux.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o
arch/parisc/kernel/init_task.o \
 drivers/parport/driver.o drivers/char/char.o drivers/block/block.o
drivers/misc/misc.o drivers/net/net.o drivers/media/media.o
drivers/scsi/scsidrv.o drivers/cdrom/driver.o
drivers/sound/sounddrivers.o drivers/video/video.o drivers/gsc/gscbus.o
arch/parisc/math-emu/math.o \
net/network.o \
`gcc -print-libgcc-file-name`
/usr/src/parisc-linux/linux/arch/parisc/lib/lib.a
/usr/src/parisc-linux/linux/lib/lib.a  \
	--end-group \
	-o vmlinux
drivers/char/char.o: In function `read_port':
drivers/char/char.o(.text.read_port+0x6c): undefined reference to `inb'
ld: drivers/char/char.o(.text.read_port+0x6c): cannot find stub entry
0000089b_inb+0
ld: drivers/char/char.o(.text.read_port+0x6c): cannot handle
R_PARISC_PCREL17F for inb
drivers/char/char.o(.text.read_port+0xd8): undefined reference to `inb'
ld: drivers/char/char.o(.text.read_port+0xd8): cannot find stub entry
0000089b_inb+0
ld: drivers/char/char.o(.text.read_port+0xd8): cannot handle
R_PARISC_PCREL17F for inb
drivers/char/char.o: In function `write_port':
drivers/char/char.o(.text.write_port+0x88): undefined reference to
`outb'
ld: drivers/char/char.o(.text.write_port+0x88): cannot find stub entry
0000089b_outb+0
ld: drivers/char/char.o(.text.write_port+0x88): cannot handle
R_PARISC_PCREL17F for outb
/usr/src/parisc-linux/linux/arch/parisc/lib/lib.a(io.o): In function
`insb':
io.o(.text.insb+0x30): undefined reference to `inb'
ld: io.o(.text.insb+0x30): cannot find stub entry 00000fd4_inb+0
ld: io.o(.text.insb+0x30): cannot handle R_PARISC_PCREL17F for inb
io.o(.text.insb+0x50): undefined reference to `inb'
ld: io.o(.text.insb+0x50): cannot find stub entry 00000fd4_inb+0
ld: io.o(.text.insb+0x50): cannot handle R_PARISC_PCREL17F for inb
io.o(.text.insb+0x5c): undefined reference to `inb'
ld: io.o(.text.insb+0x5c): cannot find stub entry 00000fd4_inb+0
ld: io.o(.text.insb+0x5c): cannot handle R_PARISC_PCREL17F for inb
io.o(.text.insb+0x70): undefined reference to `inb'
ld: io.o(.text.insb+0x70): cannot find stub entry 00000fd4_inb+0
ld: io.o(.text.insb+0x70): cannot handle R_PARISC_PCREL17F for inb
io.o(.text.insb+0x80): undefined reference to `inb'
ld: io.o(.text.insb+0x80): cannot find stub entry 00000fd4_inb+0
ld: io.o(.text.insb+0x80): cannot handle R_PARISC_PCREL17F for inb
/usr/src/parisc-linux/linux/arch/parisc/lib/lib.a(io.o)(.text.insb+0xa0):
more undefined references to `inb' follow
ld: io.o(.text.insb+0xa0): cannot find stub entry 00000fd4_inb+0
ld: io.o(.text.insb+0xa0): cannot handle R_PARISC_PCREL17F for inb
/usr/src/parisc-linux/linux/arch/parisc/lib/lib.a(io.o): In function
`insw':
io.o(.text.insw+0x4c): undefined reference to `inw'
ld: io.o(.text.insw+0x4c): cannot find stub entry 00000fd4_inw+0
ld: io.o(.text.insw+0x4c): cannot handle R_PARISC_PCREL17F for inw
io.o(.text.insw+0x60): undefined reference to `inw'
ld: io.o(.text.insw+0x60): cannot find stub entry 00000fd4_inw+0
ld: io.o(.text.insw+0x60): cannot handle R_PARISC_PCREL17F for inw
io.o(.text.insw+0x6c): undefined reference to `inw'
ld: io.o(.text.insw+0x6c): cannot find stub entry 00000fd4_inw+0
ld: io.o(.text.insw+0x6c): cannot handle R_PARISC_PCREL17F for inw
io.o(.text.insw+0x8c): undefined reference to `inw'
ld: io.o(.text.insw+0x8c): cannot find stub entry 00000fd4_inw+0
ld: io.o(.text.insw+0x8c): cannot handle R_PARISC_PCREL17F for inw
/usr/src/parisc-linux/linux/arch/parisc/lib/lib.a(io.o): In function
`insl':
io.o(.text.insl+0x60): undefined reference to `inl'
ld: io.o(.text.insl+0x60): cannot find stub entry 00000fd4_inl+0
ld: io.o(.text.insl+0x60): cannot handle R_PARISC_PCREL17F for inl
io.o(.text.insl+0x88): undefined reference to `inl'
ld: io.o(.text.insl+0x88): cannot find stub entry 00000fd4_inl+0
ld: io.o(.text.insl+0x88): cannot handle R_PARISC_PCREL17F for inl
io.o(.text.insl+0xb0): undefined reference to `inl'
ld: io.o(.text.insl+0xb0): cannot find stub entry 00000fd4_inl+0
ld: io.o(.text.insl+0xb0): cannot handle R_PARISC_PCREL17F for inl
io.o(.text.insl+0xd0): undefined reference to `inl'
ld: io.o(.text.insl+0xd0): cannot find stub entry 00000fd4_inl+0
ld: io.o(.text.insl+0xd0): cannot handle R_PARISC_PCREL17F for inl
io.o(.text.insl+0xf0): undefined reference to `inl'
ld: io.o(.text.insl+0xf0): cannot find stub entry 00000fd4_inl+0
ld: io.o(.text.insl+0xf0): cannot handle R_PARISC_PCREL17F for inl
/usr/src/parisc-linux/linux/arch/parisc/lib/lib.a(io.o)(.text.insl+0x110):
more undefined references to `inl' follow
ld: io.o(.text.insl+0x110): cannot find stub entry 00000fd4_inl+0
ld: io.o(.text.insl+0x110): cannot handle R_PARISC_PCREL17F for inl
ld: io.o(.text.insl+0x130): cannot find stub entry 00000fd4_inl+0
ld: io.o(.text.insl+0x130): cannot handle R_PARISC_PCREL17F for inl
/usr/src/parisc-linux/linux/arch/parisc/lib/lib.a(io.o): In function
`outsb':
io.o(.text.outsb+0x2c): undefined reference to `outb'
ld: io.o(.text.outsb+0x2c): cannot find stub entry 00000fd4_outb+0
ld: io.o(.text.outsb+0x2c): cannot handle R_PARISC_PCREL17F for outb
/usr/src/parisc-linux/linux/arch/parisc/lib/lib.a(io.o): In function
`outsw':
io.o(.text.outsw+0x4c): undefined reference to `outw'
ld: io.o(.text.outsw+0x4c): cannot find stub entry 00000fd4_outw+0
ld: io.o(.text.outsw+0x4c): cannot handle R_PARISC_PCREL17F for outw
io.o(.text.outsw+0x68): undefined reference to `outw'
ld: io.o(.text.outsw+0x68): cannot find stub entry 00000fd4_outw+0
ld: io.o(.text.outsw+0x68): cannot handle R_PARISC_PCREL17F for outw
io.o(.text.outsw+0x74): undefined reference to `outw'
ld: io.o(.text.outsw+0x74): cannot find stub entry 00000fd4_outw+0
ld: io.o(.text.outsw+0x74): cannot handle R_PARISC_PCREL17F for outw
io.o(.text.outsw+0x8c): undefined reference to `outw'
ld: io.o(.text.outsw+0x8c): cannot find stub entry 00000fd4_outw+0
ld: io.o(.text.outsw+0x8c): cannot handle R_PARISC_PCREL17F for outw
/usr/src/parisc-linux/linux/arch/parisc/lib/lib.a(io.o): In function
`outsl':
io.o(.text.outsl+0x64): undefined reference to `outl'
ld: io.o(.text.outsl+0x64): cannot find stub entry 00000fd4_outl+0
ld: io.o(.text.outsl+0x64): cannot handle R_PARISC_PCREL17F for outl
/usr/src/parisc-linux/linux/arch/parisc/lib/lib.a(io.o): In function
`L215':
io.o(.text.outsl+0xb4): undefined reference to `outl'
ld: io.o(.text.outsl+0xb4): cannot find stub entry 00000fd4_outl+0
ld: io.o(.text.outsl+0xb4): cannot handle R_PARISC_PCREL17F for outl
io.o(.text.outsl+0xd0): undefined reference to `outl'
ld: io.o(.text.outsl+0xd0): cannot find stub entry 00000fd4_outl+0
ld: io.o(.text.outsl+0xd0): cannot handle R_PARISC_PCREL17F for outl
/usr/src/parisc-linux/linux/arch/parisc/lib/lib.a(io.o): In function
`L249':
io.o(.text.outsl+0xec): undefined reference to `outl'
ld: io.o(.text.outsl+0xec): cannot find stub entry 00000fd4_outl+0
ld: io.o(.text.outsl+0xec): cannot handle R_PARISC_PCREL17F for outl
io.o(.text.outsl+0x10c): undefined reference to `outl'
ld: io.o(.text.outsl+0x10c): cannot find stub entry 00000fd4_outl+0
ld: io.o(.text.outsl+0x10c): cannot handle R_PARISC_PCREL17F for outl
/usr/src/parisc-linux/linux/arch/parisc/lib/lib.a(io.o)(.text.outsl+0x130):
more undefined references to `outl' follow
ld: io.o(.text.outsl+0x130): cannot find stub entry 00000fd4_outl+0
ld: io.o(.text.outsl+0x130): cannot handle R_PARISC_PCREL17F for outl
ld: io.o(.text.outsl+0x158): cannot find stub entry 00000fd4_outl+0
ld: io.o(.text.outsl+0x158): cannot handle R_PARISC_PCREL17F for outl
make: *** [vmlinux] Error 1

and I noticed a register dump in dmesg:

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111011100001111
r0-3	 00000000 000a63a0 00003063 00000000
r4-7	 00000000 00003ad4 00020000 40bc3040
r8-11	 00000007 000a63a0 000a63d8 000b6c58
r12-15	 000a63a0 000a73a0 000a63a0 faf00768
r16-19	 faf00608 00007b49 40843040 0000abf2
r20-23	 000b6c58 40f26044 00010000 00010000
r24-27	 00000007 00020000 40bc3040 000a63a0
r28-31	 00040000 00002000 faf00800 40c44070
sr0-3	 0000003d 0000003d 00000000 0000003d
sr4-7	 0000003d 0000003d 0000003d 0000003d

IASQ: 0000003d 0000003d IAOQ: 000043b7 000043bb
 IIR: 32ed040f    ISR: 0000003d  IOR: 40f66000
 ORIG_R28: 0200ffff


Is there a quick fix for this? Should I spend the effort to
download/configure/build the latest gcc and/or glibc or just wait for
someone to post a more recent kernel for the 712 (with mouse, keyboard,
STI console, & audio support)?

-chuck

P.S. What happened to the ESIEE site?  I realize that most of France
takes the month of August off, but it's only July 30th. ;-)




From - Thu Nov 08 21:18:39 2018
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Errors trying to compile 2.4.6-pa22
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Xref: news.gmane.org gmane.linux.ports.parisc:11747

In reference to a message from caslivkoff@telocity.com, dated Jul 30:
> I've been trying to compile a new kernel on my 712/80 (128MB RAM) while
> running 2.4.0-pa25. I downloaded linux-latest.tar.gz (2.4.6-pa22),
> configured, and "make dep" with no problems. "make palo" gets to the
> end, and errors out with:

what do you have in your .config? sounds like i need to add some
#ifdef's to arch/parisc/lib/io.c .. 

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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Subject: Re: [parisc-linux] Errors trying to compile 2.4.6-pa22
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On Mon, Jul 30, 2001 at 01:31:07AM -0400, caslivkoff@telocity.com wrote:
> Hi list,
> 
> I've been trying to compile a new kernel on my 712/80 (128MB RAM) while
> running 2.4.0-pa25. I downloaded linux-latest.tar.gz (2.4.6-pa22),

> drivers/char/char.o: In function `read_port':
> drivers/char/char.o(.text.read_port+0x6c): undefined reference to `inb'

You turned off CONFIG_PCI.  This is not currently supported; but we were
discussing how to fix it yesterday.  For the moment, enable it.

-- 
Revolutions do not require corporate support.




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Hello All,

After lurking daily on the mailing archives for 2 years,
I decided that the time has finally come to give PARISC-Linux
a spin.  I burned a CD of the 0.9.2 release, booted up my
715/100 (STI console, HIL keyboard & mouse) and it worked
on the first install.  Excellent work!

I then decided to give X a try, based on Helge Deller's
message in http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/013241.html
(thanks, Helge!)

This worked, but...

The 'i' and 'o' keys in X are dead.  The 'i'-key at least
sends a keycode-224 to X (as viewed in xev), but if I try

	xmodmap -e "keycode 224 = i"

I get the error:
	xmodmap: commandline:0: bad keycode value (out of range)

The 'o'-key, on the other hand, doesn't send anything at all.
Where do I begin to track this down?  I've checked that my
XF86Config-4 file is set up as described by Helge.  My
/etc/X11/xkb/rules/xfree86 file also looks OK.

I've tried various other maps, such as hp-101 and pc101, as
well as several keymaps from xkeycaps, but they either scramble
the layout completely, or have no effect.

This puzzles me, since the STI console works fine with those
keys.  Where are the scancodes from the HIL bus mapped to X
keycodes? (I presume that it uses scancodes like a normal PC
keyboard... right?)  Or is there another layer needing configuring,
which maps keyboard-specific scancodes to linux-generic keynames to
X keycodes?

Also, I'm using a MS-compatible serial-mouse.  Although it works,
it is really s-l-o-w.  I have a HIL-PS/2 adapter box, but will
it work with a PS/2 mouse?  If so, will the mouse device change
to something like /dev/psaux?

Lastly, is anyone working on HIL mouse support?  If not, then I
wouldn't mind having a go.

Thanks to everyone for making this port such a success!


-- 
Andrew G





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From: Helge Deller <helge.deller@sap.com>
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Subject: Re: [parisc-linux] Dead keys in X
Date: Mon, 30 Jul 2001 17:50:37 +0200
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On Monday 30 July 2001 17:02, Andrew Gaylard wrote:
> The 'i' and 'o' keys in X are dead.  The 'i'-key at least
> sends a keycode-224 to X (as viewed in xev), but if I try
>
> 	xmodmap -e "keycode 224 = i"
>
> I get the error:
> 	xmodmap: commandline:0: bad keycode value (out of range)


Hi Andrew,

Just an idea: Does 
		xmodmap -e "keycode 0xE0 = i"
works ?

Helge




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From: Helge Deller <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:11751

Hi Andrew,

On Monday 30 July 2001 17:02, Andrew Gaylard wrote:
> ....
> I then decided to give X a try, based on Helge Deller's
> message in
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/013241.html
> (thanks, Helge!)

I assume you meant this link (just for the record):
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/012972.html

>
> This worked, but...
>
> The 'i' and 'o' keys in X are dead.  The 'i'-key at least
> sends a keycode-224 to X (as viewed in xev), but if I try
>
> 	xmodmap -e "keycode 224 = i"
>
> I get the error:
> 	xmodmap: commandline:0: bad keycode value (out of range)
>
> The 'o'-key, on the other hand, doesn't send anything at all.
> Where do I begin to track this down?  I've checked that my
> XF86Config-4 file is set up as described by Helge.  My
> /etc/X11/xkb/rules/xfree86 file also looks OK.
>
> I've tried various other maps, such as hp-101 and pc101, as
> well as several keymaps from xkeycaps, but they either scramble
> the layout completely, or have no effect.

I have the same problem as you, but was too lazy to look any further yet.
On the other hand I don't think other keymaps are more suitable, and
the easiest way would be to get it fixed with your xmodmap approach 
and in the long term with a fixed pre-installed keymap from the XFree86
packages.

> Also, I'm using a MS-compatible serial-mouse.  Although it works,
> it is really s-l-o-w.  I have a HIL-PS/2 adapter box, but will
> it work with a PS/2 mouse?  If so, will the mouse device change
> to something like /dev/psaux?

No idea since I don't have such a adapter box myself. Maybe you 
should just try and let us know since you are not the first one asking.

> Lastly, is anyone working on HIL mouse support?  If not, then I
> wouldn't mind having a go.

Currently no one is working on such a driver, but instead there is a 
generic HIL-driver in progress. If this driver is finished a generic 
HIL-mouse-driver-plugin should be easy.
In any case, just go ahead if you want.

> Thanks to everyone for making this port such a success!

Thanks


Greetings,
Helge




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Subject: Re: [parisc-linux] low-level format for Hp 715/50 machine SCSI disk
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To: "Yan Han" <yhan@uwo.ca>
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"Yan Han" writes...

> Hi!
> 
> Does anyone know how to do low-level hard disk format for HP 715/50
> machines. We cannot boot it up with its own scsi disck, since there are
> error messages.

Try putting the disk on a different system and doing a low-level format there. 
If the SCSI card in the other system has a low-level format in the card BIOS 
(most bootable PC scsi cards do) you can use that, or you can use the scsifmt 
command in the scsitools package (at least on Debian).

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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"Pedot, Wolfgang" writes...

> Hi,
> 
> During my work on my 715/75 (works now fine) I saw that it seem to use standa
> rd SIMMs.

It does not use standard PC memory. You must use HP or 3rd party compatible 
memory. Doing a google search for "715 memory" turns up a few places that 
carry it. Don't spend too much though, as 715s(and even newer&faster boxes) 
*with* memory are going for very cheap on ebay.

> Does anybody now what Type of RAM this Workstation needs (EDO, FPM, what Size
> max...)?

I think 32mb simms are the largest HP sold for those boxes but I could be 
wrong. Also I think a 3rd party(Kingston?) may have sold larger.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Michael S.Zick <mszick@pflash.com>
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Hi,

Does anyone know what became of mkhppa1.esiee.fr ?

New url maybe?  Closed for summer break?

Mike




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From: "Anthony Mori" <tonym@compusource.net>
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Subject: [parisc-linux] C180 problem
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Xref: news.gmane.org gmane.linux.ports.parisc:11755

Acquired a C180, couldn't get it to work at home, so figuring it was
a screen res problem, took it to work. Plugged it into a 20" IBM
monitor, no problem. Booted into HP-UX (as received) just fine.

In the BIOS, I turned fastboot off, then did a reset, and it never came 
up again.

Before I changed the Fastboot, When the machine was turned on,
LED's 2,3,4 were on briefly, then they went out, and LED 1 stayed on.
Then after a briedf pause, 2,3,4 would start flickering as if it was doing
something (which it was).

Now, 2,3,4 turn on briefly, then go out, and LED 1 turns on, and that's
it. Nothing else. No video, nothing (A4071B video card)

I've tried removing the video card, and the FDDI card, but still get the
same.


Any ideas? Anything else need to be done when fastboot is off, like
terminating external scsi port(s), ensuring ethernet is in, etc?? Or should
it still at least boot and give a BIOS message?

Machine config:

C180
256MB RAM
4.3GB Disk
CDROM
Floppy
A4071B Video card


Tony





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"Michael S.Zick" wrote:
> Does anyone know what became of mkhppa1.esiee.fr ?
> New url maybe?  Closed for summer break?

I'd heard that the local network admin closed the "ports"
the web server. And yes - it's summer break there now too.
They might consider moving the content over to www.parisc-linux.org.
I'll see some them in August and talk to them about it.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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In-Reply-To: Message from "Anthony Mori" <tonym@compusource.net> 
   of "Mon, 30 Jul 2001 23:48:31 EDT." <004b01c11973$ada28fd0$0b1e7b01@tpburner> 
Xref: news.gmane.org gmane.linux.ports.parisc:11757

"Anthony Mori" wrote:
> In the BIOS, I turned fastboot off, then did a reset, and it never came 
> up again.

fastboot flag controls the number and type of self tests the machine
does at poweron. I'd expect the LEDs to indicate what the problem is.
You could try removing all but two DIMMs and then swap to a different
pair if that doesn't work.
And try cycling the power too - that's different than a reset.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:18:40 2018
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From: Andrew Gaylard <andrew.gaylard@za.didata.com>
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Subject: Re: [parisc-linux] Dead keys in X
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<html><head></head><body>Helge Deller wrote:<br>
<blockquote type="cite" cite="mid:200107301550.RAA00052@sap-ag.de"><pre wrap="">On Monday 30 July 2001 17:02, Andrew Gaylard wrote:<br></pre>
  <blockquote type="cite"><pre wrap="">The 'i' and 'o' keys in X are dead.  The 'i'-key at least<br>sends a keycode-224 to X (as viewed in xev), but if I try<br><br>	xmodmap -e "keycode 224 = i"<br><br>I get the error:<br>	xmodmap: commandline:0: bad keycode value (out of range)<br></pre></blockquote>
    <pre wrap=""><!----><br><br>Hi Andrew,<br><br>Just an idea: Does <br>		xmodmap -e "keycode 0xE0 = i"<br>works ?<br><br>Helge<br></pre>
    </blockquote>
Nope, it does exactly the same thing.<br>
    <br>
</body></html>




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From: Xavier Debacker <debackex@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ESIEE website access is possible now
Date: Tue, 31 Jul 2001 13:35:24 +0200
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Grant Grundler wrote:

> "Michael S.Zick" wrote:
> > Does anyone know what became of mkhppa1.esiee.fr ?
> > New url maybe?  Closed for summer break?
>
> I'd heard that the local network admin closed the "ports"
> the web server. And yes - it's summer break there now too.
> They might consider moving the content over to www.parisc-linux.org.
> I'll see some them in August and talk to them about it.
>
> grant

During august, our website is accessible through

http://mkhppa02.esiee.fr:8000/

Regards

Xavier.
ESIEE Team.






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From: "Andrew Gaylard (Dimension Data)" <Andrew.Gaylard@za.didata.com>
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Subject: RE: [parisc-linux] Dead keys in X
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(My apologies for spamming the entire list with HTML.
Mozilla worked fine for my first message, but since then 
seems to refuse to produce vanilla text messages.
I'm now trying with a different mail client; hopefully
that sorts it out.)

I tried using 
	xmodmap -e "keycode 0xE0 = i"
but the result was the same.  I think the bigger problem
here is that the 'o'-button sends nothing at all.  If it
doesn't even produce an X event to start with, it can't 
be remapped.

Anyone with some Xpertise out there who can say where 
the server assigns keycodes in the first place?

-----Original Message-----
From: Helge Deller [mailto:helge.deller@sap.com]
Sent: 30 July 2001 17:51
To: Andrew Gaylard; parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Dead keys in X


On Monday 30 July 2001 17:02, Andrew Gaylard wrote:
> The 'i' and 'o' keys in X are dead.  The 'i'-key at least
> sends a keycode-224 to X (as viewed in xev), but if I try
>
> 	xmodmap -e "keycode 224 = i"
>
> I get the error:
> 	xmodmap: commandline:0: bad keycode value (out of range)


Hi Andrew,

Just an idea: Does 
		xmodmap -e "keycode 0xE0 = i"
works ?

Helge



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From: "Anthony Mori" <tonym@compusource.net>
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----- Original Message -----
From: "Grant Grundler" <grundler@puffin.external.hp.com>
To: "Anthony Mori" <tonym@compusource.net>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Tuesday, July 31, 2001 2:05 AM
Subject: Re: [parisc-linux] C180 problem


> "Anthony Mori" wrote:
> > In the BIOS, I turned fastboot off, then did a reset, and it never came
> > up again.
>
> fastboot flag controls the number and type of self tests the machine
> does at poweron. I'd expect the LEDs to indicate what the problem is.
> You could try removing all but two DIMMs and then swap to a different
> pair if that doesn't work.
> And try cycling the power too - that's different than a reset.

Been there (Power cycling) even disassembled the thing, and reassembled,
just to re-seat everything. I will try the DIMMs when I retrun (on a
business
trip at present)


Thanks!

Tony






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From: eric@cirr.com (Eric Schnoebelen)
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"Anthony Mori" writes:
- Before I changed the Fastboot, When the machine was turned on,
- LED's 2,3,4 were on briefly, then they went out, and LED 1 stayed on.
- Then after a briedf pause, 2,3,4 would start flickering as if it was doing
- something (which it was).
- 
- Now, 2,3,4 turn on briefly, then go out, and LED 1 turns on, and that's
- it. Nothing else. No video, nothing (A4071B video card)

	Which LED is `1'?  (whats the lab beside it?)

	According to the C Class (c1x0, c2x0, c3x0) service
handbook, 'net-in' (top or right) LED lit, with no others means
`no memory found.' (with a further comment of ``Likely cause:
SIMMs or processor board'').

	There is fault that leaves the hearbeat LED lit (at
least, not according to the documentation.) The SCSI access LED
lit means ``Processor board fault'' (my C110 currently suffers
this.)

--
Eric Schnoebelen		eric@cirr.com		http://www.cirr.com
	There has been an alarming increase in the number of things
			    you know nothing about.




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From: caslivkoff@telocity.com
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Matthew Wilcox wrote:
> 
> On Mon, Jul 30, 2001 at 01:31:07AM -0400, caslivkoff@telocity.com wrote:
> > Hi list,
> >
> > I've been trying to compile a new kernel on my 712/80 (128MB RAM) while
> > running 2.4.0-pa25. I downloaded linux-latest.tar.gz (2.4.6-pa22),
> 
> > drivers/char/char.o: In function `read_port':
> > drivers/char/char.o(.text.read_port+0x6c): undefined reference to `inb'
> 
> You turned off CONFIG_PCI.  This is not currently supported; but we were
> discussing how to fix it yesterday.  For the moment, enable it.

Thanks, that got it to build.

But, when I booted from this kernel, the STI console was unusable. 
Unfortunately, the network did not come up either (using dhcp), so I was
forced to pull the plug and boot the older kernel.

The only signficant thing I noticed was that the PS/2 mouse port was
active, but no device attached. I attached mouse (old Logitech) &
rebooted.
The keyboard was still unusable, but since gpm did start OK, I was able
to
carefully select/paste to login. I did get a look at the process table
and
the gettys were running, but dhcpcd was not. I suppose I could have
tried
to start it, but I didn't recall the syntax. 

Any ideas/suggestions/thoughts?




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From: Jurij Smakov <jurijus@theophys.kth.se>
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Subject: [parisc-linux] 0.9.2 experiences
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Hi!

Yesterday I've install 0.9.2 on HP 712/80. It is really impressive.
Starts to feel like debian :-). One small problem however: if You get
to a situation, when the only option is to restart the machine by
pressing the power button (this should not occur, I know :-), then it
turns out, that machine does not react to it! You can turn the power
button into the "off" position - machine still works, like nothing has
happened. Is it possible somehow to cause a graceful shutdown, when the
power is turned off by power button (the way the HP-UX does)? 

Other questions: I am quite new to the list, I have only read the docs
on parisc-linux.org. I noticed people on the list talking about compiling
the kernel under parisc-linux - I've thought the only way to compile
kernel is to use a cross compiler (that's what parisc-linux.org says,
anyway). Also, since it already displays tux logo during boot, it should
be able to run X, but no Xfree binaries are present on installation CD.
Can I run X somehow?

I apologize, if these questions are answered somewhere, I would be
grateful if someone would give me the directions.

Cheers,

Jurij.

 





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From: Helge Deller <helge.deller@sap.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 0.9.2 experiences
Date: Wed, 1 Aug 2001 10:25:19 +0200
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Hi Jurij,

On Wednesday 01 August 2001 10:04, Jurij Smakov wrote:
> Other questions: I am quite new to the list, I have only read the docs
> on parisc-linux.org. I noticed people on the list talking about compiling
> the kernel under parisc-linux - I've thought the only way to compile
> kernel is to use a cross compiler (that's what parisc-linux.org says,
> anyway). 

No, you may also compile a new kernel under parisc-linux.
All you need is to apt-get gcc and binutils (search the archive how to set
up apt).

> Also, since it already displays tux logo during boot, it should
> be able to run X, but no Xfree binaries are present on installation CD.
> Can I run X somehow?

Yes you can. After setting up apt do an 
apt-get install xserver-xfree86 xfonts xlibs xbase xutils
modify your /etc/XFree86config to use the fbdev driver and it should work.
Maybe you will need to modify some more things which I don't know right now 
out of my head, but you may also take a look at the thread
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/012972.html
and should ignore all things I mentioned about HIL (since I think you don't 
have a HIL keyboard or mouse).

> Cheers,
> Jurij.

Much fun,
Helge

-- 
_______________________________________________________________________

THE BEST RUN E-BUSINESSES RUN SAP
_______________________________________________________________________

Helge Deller                            email: helge.deller@sap.com
SAP AG Walldorf/Baden, Germany         
LinuxLab                               

SAP LinuxLab support address: linux@sap.com




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From: robert.holmberg@idobath.com
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Linux on R947X?
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Any hope of getting the Lotus Domino webserver up and running under
PARISC-LINUX on a R947X? The server is going to be replaced soon, and we
have played with the thought of using it as a local test environment for
deployment of Domino web applications.

Please CC to me since I have not subscribed to the list.

Robert Holmberg.





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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] A general cleanup & overhaul of native device handling
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I've been unhappy with the way we handle native devices for a while.
Grant pushed me to do something about it instead of just whining, and
I was inspired after seeing the hotplug talk at OLS.  Yes, there are PA
machines out there whch support Hotplug... Superdome certainly does and
there may be other machines which do.

So here's what I've done:

 * `hpa' is now `unsigned long' everywhere in the core code.  Some drivers
   cast it to a struct pointer, and while I disapprove of this, that's
   really up to the individual maintainers.
 * we now have a `struct parisc_device_id'.  This parallels the similarly
   named structures for pci, isapnp & usb.  The ids I decided were useful
   are: hw_type, hversion, hversion_rev & sversion.  sversion_rev & opt are
   not included.  If anyone feels the need for them, ask nicely.
 * hp_device has become parisc_device.  The individual hversion,
   sversion, etc elements have become an embedded struct parisc_device_id.
   I've added parent, sibling, child pointers for future use in an iotree.
 * pa_iodc_driver is replaced by parisc_driver.  This parallels
   pci_driver.  It has a pointer to a table of parisc_device_id.
   The `callback' element has been renamed to `probe' and now takes only
   the struct parisc_device which is being probed for.
 * We no longer have a bitfield of things to check; instead we use
   HVERSION_ANY_ID (and similarly named values) to indicate a `don't care'.

The complete patch is something over 110k, so I decline to post it to the
list.  You can find it at ftp://puffin.external.hp.com/pub/parisc/src/parisc_device.diff .  I'll give a sample though, and I've decided to pick on... harmony.
I'm only going to post the interesting bits; there's more to it in the full
diff.

-/* This is the PDC signature to load up the driver. */
-static struct pa_iodc_driver harmony_drivers_for[] = 
-{
-       {HPHW_FIO, 0x01B, 0, 0x0007B, 0x0, 0x0, 
-               DRIVER_CHECK_HWTYPE + DRIVER_CHECK_SVERSION,
-               "Lasi Harmony", "Harmony", harmony_driver_callback},
-       {0, }
+static struct parisc_device_id harmony_tbl[] = {
+       { HPHW_FIO, HVERSION_REV_ANY_ID, 0x01B, 0x0007B },
+       { 0, }
 };
 
+MODULE_DEVICE_TABLE(parisc, harmony_tbl);
+
+static struct parisc_driver harmony_driver = {
+       name:           "Lasi Harmony",
+       id_table:       harmony_tbl,
+       probe:          harmony_driver_callback,
+};
 
 static int __init init_harmony(void)
 {
-       pdc_register_driver(harmony_drivers_for);
-       return 0;
+       return register_parisc_driver(&harmony_driver);
 }

As you can see, the new form is quite compact and readable.

At some point, I'm going to try booting a machine with this patch applied
and see what happens.  I expect it to explode messily right now, tbh, but
at least it compiles.  I'm interested in criticism of this architecture.
After I get this hunk of work done, I'll move on to an iotree, and maybe
then to actually doing hotplug for native devices... that isn't high on
my priority list and I'd be happy to leave it to somebody else :-)

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] 2.4.7 merge
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On Sun, Jul 29, 2001 at 09:16:08PM +0100, Matthew Wilcox wrote:
> so I don't anticipate any major problems.

There were several minor unanticipated problems with the 2.4.7 merge, but
I think we're good now; it boots fine on a 712 I have here.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:18:41 2018
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From: Matthew Wilcox <willy@debian.org>
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On Wed, Aug 01, 2001 at 06:21:13PM +0100, Matthew Wilcox wrote:
> On Sun, Jul 29, 2001 at 09:16:08PM +0100, Matthew Wilcox wrote:
> > so I don't anticipate any major problems.
> 
> There were several minor unanticipated problems with the 2.4.7 merge, but
> I think we're good now; it boots fine on a 712 I have here.

I spoke too soon; on tulip-based systems it dies with an Unaligned
data reference in tulip_up.  Unfortunately I have to leave my keyboard
for the moment; but I hope someone magaes to find this problem before
I return.

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Linux on R947X?
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On Wed, Aug 01, 2001 at 01:04:56PM +0300, robert.holmberg@idobath.com wrote:
> Any hope of getting the Lotus Domino webserver up and running under
> PARISC-LINUX on a R947X? The server is going to be replaced soon, and we
> have played with the thought of using it as a local test environment for
> deployment of Domino web applications.

According to the Domino website
(http://www.lotus.com/home.nsf/welcome/domino), they only support
Linux on x86.  They do have a version for HPUX so if we were to get
the HPUX emulation working again, there's a possibility it might work.
Nobody has much interest in the HPUX emulation right now, so I wouldn't
count on it happening any time soon.

On the other hand if you happen to be a big corporate customer and could
persuade them to port Domino to a different platform... :-)

-- 
Revolutions do not require corporate support.




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From: LaMont Jones <lamont@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] libqthreads and hppa-linux
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I started to play with getting the hppa assembly code in guile-core to work
on pa-linux, but ran into challenges with %farg[0-3], which aren't defined
by the assembler...

I'm about to upload a source NMU of guile-core, which has qt/md/hppa*-linux.?
in it.  If someone wanted to take that the rest of the way, I'd be happy to
upload it...

lamont




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On Wed, Aug 01, 2001 at 10:04:34PM -0600, LaMont Jones wrote:
> I started to play with getting the hppa assembly code in guile-core to work
> on pa-linux, but ran into challenges with %farg[0-3], which aren't defined
> by the assembler...

So fix the assembler!  gas/config/tc-hppa.c:pre_defined_registers





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From: LaMont Jones <lamont@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] libqthreads and hppa-linux
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> On Wed, Aug 01, 2001 at 10:04:34PM -0600, LaMont Jones wrote:
> > I started to play with getting the hppa assembly code in guile-core to work
> > on pa-linux, but ran into challenges with %farg[0-3], which aren't defined
> > by the assembler...
> So fix the assembler!  gas/config/tc-hppa.c:pre_defined_registers

Dunno which regs they are, and don't have a current runtime arch doc at
home.

How close is the calling convention between hp-ux and pa-linux?

lamont




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From: LaMont Jones <lamont@hp.com>
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Subject: Re: [parisc-linux] libqthreads and hppa-linux
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> > So fix the assembler!  gas/config/tc-hppa.c:pre_defined_registers
> Dunno which regs they are, and don't have a current runtime arch doc at
> home.

This code seems to think that four args are passed in regs, but the code
that cc generates appears to only pass two doubles in regs.  Likewise,
are the FR's numbered the same?  (The names were rather funky on hp-ux,
due to legacy issues...)

lamont




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From: Alan Modra <amodra@bigpond.net.au>
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Subject: Re: [parisc-linux] libqthreads and hppa-linux
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On Wed, Aug 01, 2001 at 10:44:00PM -0600, LaMont Jones wrote:
> > On Wed, Aug 01, 2001 at 10:04:34PM -0600, LaMont Jones wrote:
> > > I started to play with getting the hppa assembly code in guile-core to work
> > > on pa-linux, but ran into challenges with %farg[0-3], which aren't defined
> > > by the assembler...
> > So fix the assembler!  gas/config/tc-hppa.c:pre_defined_registers
> 
> Dunno which regs they are, and don't have a current runtime arch doc at
> home.
> 
> How close is the calling convention between hp-ux and pa-linux?

Practically identical.  farg0..3 is fr4..7 from memory, and I think they
are in that order.  Test it out by writing a little C code, and
compiling with -S.





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From: Alan Modra <amodra@bigpond.net.au>
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On Wed, Aug 01, 2001 at 10:49:45PM -0600, LaMont Jones wrote:
> > > So fix the assembler!  gas/config/tc-hppa.c:pre_defined_registers
> > Dunno which regs they are, and don't have a current runtime arch doc at
> > home.
> 
> This code seems to think that four args are passed in regs, but the code
> that cc generates appears to only pass two doubles in regs.  Likewise,
> are the FR's numbered the same?  (The names were rather funky on hp-ux,
> due to legacy issues...)

Hmm, I wonder if you've found a gcc bug?

#if 1
#define FP float
#else
#define FP double
#endif
extern FP f1 (FP a);
extern FP f2 (FP a, FP b);
extern FP f3 (FP a, FP b, FP c);
extern FP f4 (FP a, FP b, FP c, FP d);

int main (void)
{
  return f1 (1.) + f2 (1., 2.) + f3 (1., 2., 3.) + f4 (1., 2., 3., 4.);
}

With FP as float, I get fr4L, fr5L, fr6L, fr7L used in that order for
floating point args.  With FP as double, I get fr5, fr7, stack args.
Weird, but then the pa ABI _is_ weird.  I think you do need to check
that ABI document.

Alan





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From: robert.holmberg@idobath.com
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Subject: Re: [parisc-linux] Linux on R947X?
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>> Any hope of getting the Lotus Domino webserver up and running under
>> PARISC-LINUX on a R947X? The server is going to be replaced soon, and we
>> have played with the thought of using it as a local test environment for
>> deployment of Domino web applications.
>According to the Domino website
>(http://www.lotus.com/home.nsf/welcome/domino), they only support
>Linux on x86.

I should have thought of that. I have not found any indication that anyone
has gotten Linux to work on a R947X at all, so I also meant to ask if at
least this is possible. We can run the test environment on any NT server,
but it would be nice to continue using such a reliable machine as the old
HP for something useful. Paying for a HPUX lisence is not exactly in our
interest, though..

>They do have a version for HPUX so if we were to get
>the HPUX emulation working again, there's a possibility it might work.
>Nobody has much interest in the HPUX emulation right now, so I wouldn't
>count on it happening any time soon.

So this idea of ours is somewhat ... optimistic. I'm actually just working
here for the summer and was asked to find out if this was at all possible.
We have a 922LX as well, nut unfortunately the company has decided to try
and sell this one. I'd buy it myself if it weren't for its size and weight.

>On the other hand if you happen to be a big corporate customer and could
>persuade them to port Domino to a different platform... :-)

Not THAT big. :=)

Robert





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From: Alan Modra <amodra@bigpond.net.au>
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On Thu, Aug 02, 2001 at 03:14:15PM +0930, Alan Modra wrote:
> Hmm, I wonder if you've found a gcc bug?

Curiousity got the better of me, and I dug up copy of the ABI.  Looks
like gcc is doing the right thing.

"Floating-Point (32 Bits, single-precision): One word, callee cannot assume
a valid floating-point number.

Floating-Point (64 Bits, double-precision): Two words, double word aligned
(high order word in odd arg word).  This may create a void in the argument
list.  64-bit floating-point value parameters mapped to the first and second
double-words of the argument list should be passed in farg1 and farg3,
respectively. farg0 and farg2 are never used for 64-bit floating-point
parameters.  Callee cannot assume a valid floating-point number."

Makes a weird sort of sense when you realise that the register args have
a mapping to stack slots, and there are only 4x32 bits of stack space,
or 2 doubles.

Alan





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From: "S Looman" <steve__l__@hotmail.com>
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Subject: [parisc-linux] 715/80 not booting (kernel crashes)
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Hi,

Just got a 715/80 box from a friend and started playing with it, but HP-UX 
sucks and wanted to install linux on it.
I downloaded the iso-image yesterday and booted it.

The cd boots, starts loading the kernel 'n stuff. But then it panics.

It has the same dump as this email: 
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/013193.html

I guess using another kernel should fix it, but I can't build any kernel...

Can anybody give me a kernel (or suggestions)?

Thx,

Steven

PS.
Sorry for using hotmail

_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp





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Hello everyone,
I have a big proplem of installing PA-RISC Linux 0.9.2 on a HP9000 Model
715/100.

I have downloaded the cd-image palinux-0.9.2.iso.gz from
parisc-liux.org, i have decompressed it with gzip on a linux-machine and
burned it with Nero 5.5 on a NT-machine.

When i poweron the hp, i press ESC until i'm in the boot-admin-menu.
Therefrom i boot with
'boot scsi.2.0' (the scsi-id of the cd-rom is 2)
from the cd.

Then a window comes which says
"Attempting to boot."
Then the cd boots. There are lots of different messages.
One warning comes:
"warning: Kernelname doesn't end with 32 or 64"

After that, other messages came on my screen.
The last message is:
"Set default PSW W bit to 0".

Then the the maschine reboots.

I have tried to boot the cd on to different hp9000 model 715/100. The
result is everytime the same.
Bye,
Martin Eisfeld




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From: Bjorn Helgaas <bjorn_helgaas@hp.com>
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Subject: [parisc-linux] Fwd: [Linux-ia64] [RFC] /proc/ksyms change for IA64 (fwd)
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Is this an issue for parisc as well?


----------  Forwarded Message  ----------
Subject: [Linux-ia64] [RFC] /proc/ksyms change for IA64 (fwd)
Date: Thu, 02 Aug 2001 13:38:40 +1000
From: Keith Owens <kaos@ocs.com.au>
To: linux-ia64@linuxia64.org


FYI.  Followups to linux-kernel@vger.kernel.org please, the initial
problem is IA64 specific but the fix is a generic one for all
architectures that require special processing, it needs to be discussed
on l-k.  I would have used Bcc: to ia64 but this list rejects Bcc mail.

------- Forwarded Message

The IA64 use of descriptors for function pointers has bitten ksymoops.
For those not familiar with IA64, &func points to a descriptor
containing { &code, &data_context }.  System.map contains the address
of the code, /proc/ksyms contains the address of the descriptor.
insmod needs the descriptor address, ksymoops and debuggers need the
code address, /proc/ksyms needs to contain both addresses, with one of
them prefixed by a special character.

EXPORT_SYMBOL() cannot distinguish between &function and &data.
Telling everybody that they must type EXPORT_SYMBOL_FUNCTION or
EXPORT_SYMBOL_DATA is not an option, the second symbol has to be
automatically added after linking vmlinux and modules.  I want to fix
this problem in user space, with no changes to to kernel code.  My
proposal for kernel 2.5 is :-

* In System.map and /proc/ksyms, label foo addresses the code, not the
  descriptor.  Label &foo addresses the function descriptor.

* foo has symbol versions, &foo does not.

* In kernel build, all objects that export symbols are post processed
  immediately after they are compiled.  On most architectures the post
  process is a no-op.  On IA64 it runs a program from modutils that
  identifies exported function pointers and modifies the ksymtab and
  kstrtab, see below.

* At run time, insmod does its normal address fixup processing first,
  including checking for symbol versions.  If the existing code
  succeeds without unresolved symbols, insmod modifies the address
  fixup so a reference to foo is resolved to &foo, iff both foo and
  &foo are in /proc/ksyms.

This has the benefit that all the changes are in modutils plus a small
change to the kernel build, no other user space tools are affected.
Most user space programs expect foo to address the code, not the
descriptor, AFAIK it is only insmod that needs the descriptor.  This
change will also affect any code that tries to front end functions from
modules but IMNSHO code should not be doing that.  If this breaks
binary only modules - tough.

One problem that always has to be addressed with modutils is version
skew between user space and the kernel.  With this approach, if you
build a new kernel with old modutils then the post processing program
will not be available so ksyms has the old format and the old insmod
behaviour applies, ksymoops will get errors but the kernel will still
run.  With a new modutils but an old kernel you get the old behaviour.
The only way you can get problems with version skew is to compile a
kernel on one machine with new modutils and install on another machine
with old modutils, modules will oops.  I don't see this as a problem,
the IA64 population is fairly small, in any case gcc cross compile for
IA64 has problems right now.

The new modutils supplied program (/usr/bin/modules_post) will look
through the __ksymtab section for an object.  For each exported symbol,
look at the data it references.  If that data contains two relocatable
addresses, one pointing to a text symbol, the other to a data symbol
and the text symbol has the same name as the exported symbol then this
is a descriptor.  Change the exported symbol name to &foo and add an
exported symbol foo that points to the code.

Note: This is modutils 2.5 stuff.  modules_post needs to use BFD which
      current modutils does not use, this adds a new requirement when
      compiling modutils.  Using BFD is the only way I can handle all
      the relocation types, especially in cross compile mode.  It may
      or may not get backported to modutils 2.4, probably not.
      ksymoops on IA64 2.4 will just have to live with lots of
      warnings.


------- End of Forwarded Message


_______________________________________________
Linux-IA64 mailing list
Linux-IA64@linuxia64.org
http://lists.linuxia64.org/lists/listinfo/linux-ia64

-------------------------------------------------------




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Linux on R947X?
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robert.holmberg@idobath.com wrote:
> I have not found any indication that anyone
> has gotten Linux to work on a R947X at all,
....

I've never heard of "R947X".
Do you mean HP 9000 R-470?
What does HPUX "model" or "uname -a" command say?
Is this machine already registered in the HW database?

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: "CARSON,KEVIN (HP-Canada,ex1)" <kevin_carson@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Linux on R947X?
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I believe we are talking about a 947RX which is the MPe equivalent of the
G30.

This presents two problems.  The hardware is identical to the G30 but
everything that I have read in the PA-Linux project is that support for
these machines will be a long time coming, if ever.  The second problem is
that the firmware is different for MPe than HP-UX.  Conversion from a 947RX
to a G30 might be available but it wouldn't matter, one could probably pick
up a used G30 or newer for less $$ than the conversion would cost.

Kevin

> -----Original Message-----
> From: Grant Grundler [mailto:grundler@puffin.external.hp.com]
> Sent: Thursday, August 02, 2001 9:25 AM
> To: robert.holmberg@idobath.com
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Linux on R947X? 
> 
> 
> robert.holmberg@idobath.com wrote:
> > I have not found any indication that anyone
> > has gotten Linux to work on a R947X at all,
> ....
> 
> I've never heard of "R947X".
> Do you mean HP 9000 R-470?
> What does HPUX "model" or "uname -a" command say?
> Is this machine already registered in the HW database?
> 
> grant
> 
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] libqthreads and hppa-linux
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To: LaMont Jones <lamont@hp.com>
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On Wed, Aug 01, 2001 at 10:04:34PM -0600, LaMont Jones wrote:
> I started to play with getting the hppa assembly code in guile-core to work
> on pa-linux, but ran into challenges with %farg[0-3], which aren't defined
> by the assembler...

I already discussed this in detail with the maintainer; details of the
discussion can be found in the BTS.  I'm disappointed you decided to
waste your time on this without reading that discussion or talking to me.

> I'm about to upload a source NMU of guile-core, which has qt/md/hppa*-linux.?
> in it.  If someone wanted to take that the rest of the way, I'd be happy to
> upload it...

No, don't do this, it's completely unnecessary.

-- 
Revolutions do not require corporate support.




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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: [parisc-linux] Linux on R947X?
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Re:

> I believe we are talking about a 947RX which is the MPe equivalent of the
> G30.

Yes.
 
> these machines will be a long time coming, if ever.  The second problem is
> that the firmware is different for MPe than HP-UX.  Conversion from a 947RX

AFAIK, the firmware should be 100% identical.  The only diference I'm aware of
is the model string and the OS-license info in stable storage.

And, of course, you're giving up a lot more turning an HP 3000 into a Linux
box than you are when turning an HP 9000 into a Linux box :)

Seriously, if he has a 947RX, he might be able to resell it.

As far as selling a 922?   It's a very old HP 3000, and has little or no 
market value :(
(By "little or no", I mean: you'll be lucky to sell it for $50.)

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com




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Subject: Re: [parisc-linux] Fwd: [Linux-ia64] [RFC] /proc/ksyms change for IA64 (fwd)
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	"'Richard Hirst'" <rhirst@linuxcare.com>
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> > Is this an issue for parisc as well?
>
> I'm pretty sure parisc port has already addressed this since insmod
> works. Talk to Richard Hirst since he's done most of the kernel modules
> support.

insmod works fine on ia64 as well.  The problem they tripped over was that 
ksymoops running native on ia64 and using /proc/ksyms failed, while a 
running ksymoops on ia32 (cross debug mode) with ia64 debug info and 
System.map worked fine.

ismod uses the descriptor address (which ia64 currently puts in 
/proc/ksyms), while ksymoops requires the code address.




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On Thu, 2 Aug 2001, Martin Eisfeld wrote:

> Hello everyone,
> I have a big proplem of installing PA-RISC Linux 0.9.2 on a HP9000 Model
> 715/100.
>
> I have downloaded the cd-image palinux-0.9.2.iso.gz from

[snip]

> Then the the maschine reboots.
>
> I have tried to boot the cd on to different hp9000 model 715/100. The
> result is everytime the same.

Hi,

I also had problems with 0.92iso (and 0.91iso).
palinux-0.9-32serial.iso then worked for me and the machine is up and
running for days.
Why 0.91/2 doesn't work I still don't know :(

Hope that helps.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/





From - Thu Nov 08 21:18:42 2018
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From: "Bjoern A. Zeeb" <bzeeb+hplinux@zabbadoz.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] dev-packages
Date: Thu, 2 Aug 2001 23:06:15 +0200 (CEST)
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Hi,

is there any chance to get more/all dev-packages on the next ISOs or
place them somewhere on ftp.
Couldn't find them anywhere (except those that are in isos).

This would avoid lots of bootstrapping work.

(especially looking for pam and X -dev packages at the moment ;)

Thanks a lot.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/





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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] dev-packages
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Xref: news.gmane.org gmane.linux.ports.parisc:11789

On Thu, Aug 02, 2001 at 11:06:15PM +0200, Bjoern A. Zeeb wrote:
> is there any chance to get more/all dev-packages on the next ISOs or
> place them somewhere on ftp.
> Couldn't find them anywhere (except those that are in isos).
> 
> This would avoid lots of bootstrapping work.
> 
> (especially looking for pam and X -dev packages at the moment ;)

They're all available in the debian archive.  I don't think we have
plans to produce any more CDs until the Debian Woody release (probably
December).

-- 
Revolutions do not require corporate support.




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Linux on R947X?
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Cc: robert.holmberg@idobath.com, parisc-linux@lists.parisc-linux.org
To: "CARSON,KEVIN (HP-Canada,ex1)" <kevin_carson@hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11790

"CARSON,KEVIN (HP-Canada,ex1)" wrote:
> I believe we are talking about a 947RX which is the MPe equivalent of the
> G30.

Ok.

> This presents two problems.  The hardware is identical to the G30 but
> everything that I have read in the PA-Linux project is that support for
> these machines will be a long time coming, if ever.

So far, no one inside HP has volunteered to make it happen.
If someone external wants to sign an NDA for device docs and make it
happen, that might be possible.

> The second problem is
> that the firmware is different for MPe than HP-UX.

At some point MPE systems were only different from HPUX systems
by changing the model string. G30 is a "nova-class" machine and
might predate this.

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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On Thu, 2 Aug 2001, Matthew Wilcox wrote:

> They're all available in the debian archive.  I don't think we have
> plans to produce any more CDs until the Debian Woody release (probably
> December).

Could you point me to some URL (incl. subdir) please ?

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/





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Stan Sieler wrote:

>> I believe we are talking about a 947RX which is the MPe equivalent of
the
>> G30.
> Yes.

Checking the label of the box, yes. My memory must have failed me.. :) It
is running MPe/iX, but I'm not touching it. Maybe I shouldn't be, but VMS
and SCO-Unix have left me scared to death of vendor-specific OSes.

> And, of course, you're giving up a lot more turning an HP 3000 into a
Linux
> box than you are when turning an HP 9000 into a Linux box :-)

Yes, the only time its been down in the last three years was a month ago
when the serverroom cooing failed and the power was cut when the
temperatute rose too much. I seriously wonder if the W2K servers supposed
to replace it will even get close to this kind of reliability.

> Seriously, if he has a 947RX, he might be able to resell it.

If we won't be able to use it after it goes out of production service this
fall, this would be the general idea, yes. Who would be buying and what
should they be paying?

> As far as selling a 922?   It's a very old HP 3000, and has little or no
> market value :( (By "little or no", I mean: you'll be lucky to sell it
for $50.)

I know it isn't exactly worth its weight in anything else than sweat
(carrying it), but how about the sex appeal? That must count for something!
:-)

Robert.





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Quoth Bjoern A. Zeeb:
> On Thu, 2 Aug 2001, Matthew Wilcox wrote:
> > They're all available in the debian archive.  I don't think we have
> > plans to produce any more CDs until the Debian Woody release (probably
> > December).
> 
> Could you point me to some URL (incl. subdir) please ?

If you've got apt configured (/etc/apt/apt.conf, /etc/apt/sources.list)
then you don't need to worry about finding things directly.  After doing
an 'apt-get update' to fetch the current Packages files and rebuild the
local package database, you can say 'apt-cache search foo' and it will
show you all the packages called foo or with foo in their description.
A simple 'apt-get install foo-dev' will download and install the foo-dev
package and any other package it may require according to its
dependencies.

For more info & discussion on actual Debian issues rather than the
actual development of the hppa-linux kernel and toolchain have a look at
the debian-hppa mailing list (on the Debian website).

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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From: Martin Eisfeld <me@hedd.de>
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Subject: Re: [parisc-linux] Problems with Installing of 0.9.2 on HP 715/100
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Hello,
here are the full putput from serial terminal (terminalemulation with
hyperterminal from winnt).
Most of it was not displayed on the monitor attached to the hp9000.
Bye,
Martin Eisfeld


0x04.1081
0x04.1080
0x04.1082
0x04.1086
0x04.1087
0x04.108A
0x04.108B
0x04.108C
0x04.1083
0x04.10D1
0x04.10D2
0x04.2090
0x04.2091
0x04.209F
0x04.2096
0x04.2094
0x04.2095
0x06.C201
0x04.10DA
0x04.10D7
0x04.10D8


----------------------------------------------------------------------------
BootRom Version    1.2
Memory Size:  256 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.
0x04.2097
0x04.2098
0x04.2099
0x04.209A
0x04.209B
0x04.1091
0x04.1092
0x04.1093
0x04.1094
0x04.1095
0x04.1096
0x04.1090
0x04.108D
0x04.10D4
0x04.10D9
0x04.4080
0x04.4081
0x04.4082
0x06.C2EA
0x06.C2EF
0x04.300C
0x04.300C
0x04.300B
----------------------------------------------------------------------------
Command                                Description
-------                                -----------
Auto [boot|search] [on|off]            Set/show auto mode
Boot [pri|alt [isl]]                   Boot from primary or alternate
path
Boot [scsi|eisa.<slot>[.<addr>]] [isl] Boot from SCSI or EISA
Boot lan[.<addr>] [install] [isl]      Boot from LAN
Chassis [on|off]                       Set/show chassis codes display
mode
DefaultSS                              Reboot and set EEPROM to default
values
Diagnostic [on|off]                    Set/show diagnostic boot mode
Fastboot [on|off]                      Set/show fast boot mode
Help                                   Show this command menu
Information                            Show system information
LanAddress                             Show LAN station addresses
Monitor [<DEV>[.<type>]]               Set/show graphics monitor type
                                       (<DEV>=graphics|graphics_<1|2>)
Path [pri|alt [<DEV>[.<addr>]]]        Set/show boot source path
                                       (<DEV>=lan|scsi|eisa.<slot>)
Path [console [<DEV>[.<parm>]]]        Set/show boot console path
                                       (<DEV>=<RS232>|<GRAPH>
                                        <RS232>=rs232|rs232_2
                                        <parm>=<baud>.<length>.<parity>
                                        <GRAPH>=graphics|graphics_<1|2>
                                        <parm>=<monitor>)
Path [keyboard [hil|ps2]]              Set/show boot keyboard path
Pim [hpmc|toc|lpmc]                    Show PIM info
Search [ipl] [scsi|eisa]               Show potential boot devices
Search [ipl] [lan [install]]           Show potential boot LAN devices
Secure [on|off]                        Set/show security mode
----------------------------------------------------------------------------
BOOT_ADMIN> boot scsi.2.0
0x06.C740




Attempting to boot.

Loading Initial Program Loader

0x06.C580

IPL successfully loaded


Booting
0x06.C7FF
palo ipl 0.92 root@spqr Mon Jun 25 23:03:13 CEST 2001
0/vmlinux32 2853588 bytes @ 0x6ad6800
0/vmlinux64 3585851 bytes @ 0x6d8f800
0/ramdisk 1991209 bytes @ 0x70fb000

Command line: 'root=/dev/ram console=ttyS0 TERM=vt102'

Kernel: partition 0 file /vmlinux
Ramdisk: partition 0 file /ramdisk
Warning: kernel name doesn't end with 32 or 64... Guessing Annoyance:
Firmware d
oes not support PDC_MODEL_CAPABILITIES call
32
ELF32 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1606948 mediaptr 0x1000
Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
Loading ramdisk 1991209 bytes @ 0fe09000...
branching to kernel entry point 0x00100000
Set default PSW W bit to 0
0x02.CBF0
0x02.503F

GRs

0x00000000
0x00000000
0xF4100000
0x00000001
0xF5000000
0x00000003
0x00000001
0xF0024328
0x0000000D
0xF0305698
0xF4300000
0x00000000
0x00080BEF
0x00010000
0x00000005
0x00000032
0x00000000
0x00283BAB
0x00000001
0x00000000
0x00000000
0xF0024000
0x00000500
0x0B00002D
0x00000001
0x00000000
0x00283BAB
0x1028A010
0x00000001
0xF0305698
0x003058D8
0x007793E8

CRs

0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x000000C0
0x0000001C
0x00000000
0x00000000
0x00105800
0xFFFFFFFF
0xF153AA4B
0x00000000
0x00778944
0xB3202000
0x00000000
0x00778964
0x00007F00
0x80000000
0x002A6000
0x002A6000
0xFFFFFEFF
0x0900DEEE
0xAAAAAAAA
0xF0002000
0x00000000
0x0000001F

SRs

0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000

OTHER

0x00000000
0x00778948
0x20000000
0x9E000004
0x00000000
0x00000000
0x00000000
0x00310000
0x00000000
0x00000000
0x00000000
0xF0305710
0xFFFBE000
0x00000000
0x00000002
0x301048E6
0x3B6A561A

0x02.CBFB



Dumping Stack from 00304000 to 003058d8:

Dumping Stack from 10292000 to 10292700:
2000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2020 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2040 00000000 00000000 00000000 0029e000 00000000 00000000 00000000
00000000
2060 00000000 00000000 00000000 0010c8a4 00000000 00000000 00000000
00000000
2080 00007f00 00000000 f4100000 00000001 f5000000 00000003 00000001
f0024328
20a0 0000000d f0305698 f4300000 00000000 00080bef 00010000 00000005
00000032
20c0 00000000 00283bab 00000001 00000000 00000000 f0024000 00000500
0b00002d
20e0 00000001 00000000 00283bab 1028a010 00000001 f0305698 003058d8
007793e8
2100 00000002 301048e6 3b6a561a 00000000 00000000 00000000 00000000
00000000
2120 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2140 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2160 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2180 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
21a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
21c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
21e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2200 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2220 00000000 00000000 00778944 00778948 0000001f 00000000 00000000
00000000
2240 00000000 0000001c b3202000 00000000 00778964 00000000 00000000
00000000
2260 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2280 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
22a0 00000000 00000000 00000000 10106750 00000000 00000000 00000000
00000000
22c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
22e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2300 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2320 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2340 00000000 00000000 0000001f 00296000 002a6000 f0012870 00000000
00000000
2360 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2380 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
23a0 00000000 00000000 00000000 10102220 00000000 00000000 00000000
00000000
23c0 00000000 00000000 00000001 10292080 00000000 00000000 00000000
f0002840
23e0 00310000 00000037 f0305698 0000000d f0002848 00000000 00000000
00000001
2400 10292080 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2420 00000000 00000000 00000000 10102614 00000000 00000000 00000000
00000000
2440 102565e4 00000001 10292080 00000000 00000000 00000000 00000000
00000000
2460 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2480 00000000 00000000 00000000 00000000 00000000 003058d8 00304000
10256774
24a0 00000000 00000000 00000000 10102568 00000000 00000000 00000000
00000000
24c0 0004000e 10337010 10102614 00304000 003058d8 10256000 00000000
f0002848
24e0 0000000d f0305698 00000037 00310000 f0002840 00000000 00000000
f0305710
2500 10292080 00283bab 00000002 00000000 00000000 f0105800 01c9c380
00000060
2520 00000001 00000001 1029f3c0 1028a010 0000002a 00000000 10292700
00000000
2540 000d081f 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2560 00000000 00000000 00000000 00000000 00000000 00000000 40800000
00000000
2580 7fffffff 7fffffff 7f7fffff ffffffff 7f7fffff ffffffff 00000000
00000000
25a0 00000000 00000000 41800000 00000000 00000010 00000010 00000000
00000000
25c0 7fffffff 7fffffff 41000000 00000000 40800000 00000000 7fffffff
7fffffff
25e0 41000000 00000000 7fffffff 7fffffff 40800000 00000000 41000000
00000000
2600 40300000 00000000 40200000 00000000 40200000 00000000 41800000
7fffffff
2620 40000000 00000000 40000000 00000000 40800000 00000000 41000000
00000000
2640 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
2660 00000000 00000000 10102574 10102578 0000001f 00000000 00000000
00000000
2680 00000000 0000001f 0c701093 00000000 00304008 00000000 00000000
00000000
26a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
26c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
26e0 00000000 00000000 00000000 10106750 00000000 00000000 00000000
00000000

Kernel Fault: Code=15 regs=102924c0 (Addr=00304008)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110
r0-3     00000000 10337010 10102614 00304000
r4-7     003058d8 10256000 00000000 f0002848
r8-11    0000000d f0305698 00000037 00310000
r12-15   f0002840 00000000 00000000 f0305710
r16-19   10292080 00283bab 00000002 00000000
r20-23   00000000 f0105800 01c9c380 00000060
r24-27   00000001 00000001 1029f3c0 1028a010
r28-31   0000002a 00000000 10292700 00000000
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10102574 10102578
 IIR: 0c701093    ISR: 00000000  IOR: 00304008
 ORIG_R28: 00000000




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Xref: news.gmane.org gmane.linux.ports.parisc:11795

Hi all,

To test Xfree86, I install following packages:

xserver-xfree86_4.0.3-4_hppa.deb
xserver-common_4.0.3-4_hppa.deb
xterm_4.0.3-4_hppa.deb
xlibmesa3_4.0.3-4_hppa.deb
xlib6g_4.0.3-4_all.deb
xfree86-common_4.0.3-4_all.deb
xfonts-scalable_4.0.3-4_all.deb
xfonts-base_4.0.3-4_all.deb
xfonts-75dpi_4.0.3-4_all.deb
xfonts-100dpi_4.0.3-4_all.deb
xlibs_4.0.3-4_hppa.deb
libxaw7_4.0.3-4_hppa.deb
libfreetype6_2.0.2.20010514-1_hppa.deb
xdm_4.0.3-4_hppa.deb
xbase-clients_4.0.3-4_hppa.deb
libxaw6_4.0.3-4_hppa.deb
xutils_4.0.3-4_hppa.deb

On the B180 I use the same XF86config as on 712/80, the one from  Thomas
Bogendoerfer available at:
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-June/012928.html

(I also changed "repeat_type=ms3" to  "repeat_type=" in /etc/gpm.conf to
make mouse working correctly)

With kernels 2.4.0-32 and 2.4.6 xdm failed because:
"(EE) No devices detected.

Fatal server error:
no screen found.
..."

With the last kernel 2.4.7-pa1, it failed: on the console a lot of "kernel
BUG at init.c:731!"

Thanks in advance for all advises,
     Joel

PS: I also try to boot with palinux-0.9.2 CD on a B2000 but the kernel
panic at the boot time (sorry no more info)




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Xref: news.gmane.org gmane.linux.ports.parisc:11796

Hi all,

To test Xfree86, I install following packages:

xserver-xfree86_4.0.3-4_hppa.deb
xserver-common_4.0.3-4_hppa.deb
xterm_4.0.3-4_hppa.deb
xlibmesa3_4.0.3-4_hppa.deb
xlib6g_4.0.3-4_all.deb
xfree86-common_4.0.3-4_all.deb
xfonts-scalable_4.0.3-4_all.deb
xfonts-base_4.0.3-4_all.deb
xfonts-75dpi_4.0.3-4_all.deb
xfonts-100dpi_4.0.3-4_all.deb
xlibs_4.0.3-4_hppa.deb
libxaw7_4.0.3-4_hppa.deb
libfreetype6_2.0.2.20010514-1_hppa.deb
xdm_4.0.3-4_hppa.deb
xbase-clients_4.0.3-4_hppa.deb
libxaw6_4.0.3-4_hppa.deb
xutils_4.0.3-4_hppa.deb

On the 712/80 it seems to works now with XF86config file which Thomas
Bogendoerfer used in:
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-June/012928.html

(I just had to change "repeat_type=ms3" to  "repeat_type=" in /etc/gpm.conf
to make mouse working correctly)

Following this success, I would go further and try to start gnome and so
install following packages:
gnome-help_1.4.0.4-6_hppa.deb
gnome-core_1.4.0.4-6_hppa.deb
gnome-panel_1.4.0.4-6_hppa.deb
gnome-session_1.4.0.4-6_hppa.deb
gnome-terminal_1.4.0.4-6_hppa.deb
gnome-utils_1.4.0.2-2_hppa.deb
gnome-panel-data_1.4.0.4-6_all.deb
gnome-bin_1.2.13-9_hppa.deb
gnome-libs-data_1.2.13-9_all.deb
imlib1_1.9.10-5_hppa.deb
imlib-base_1.9.10-5_all.deb
libjpeg62_6b-1.3_hppa.deb
libpng2_1.0.12-2_hppa.deb
libtiff3g_3.5.5-5_hppa.deb
libungif4g_4.1-9_hppa.deb
libc6_2.2.3-9_hppa.deb
scrollkeeper_0.2-5_hppa.deb
libscrollkeeper0_0.2-5_hppa.deb
libxml1_1.8.14-4_hppa.deb
libgtk1.2_1.2.10-1_hppa.deb
libgnorba27_1.2.13-9_hppa.deb
libgnomeui32_1.2.13-9_hppa.deb
libgnorbagtk0_1.2.13-9_hppa.deb
libgnorba27_1.2.13-9_hppa.deb
liborbit0_0.5.8-2_hppa.deb
libesd0_0.2.22-6_hppa.deb
libesd-alsa0_0.2.22-6_hppa.deb
libaudiofile0_0.2.2-1_hppa.deb
libesd-alsa0_0.2.22-6_hppa.deb
libaudiofile0_0.2.2-1_hppa.deb
libasound1_0.5.10-2.1_hppa.deb
esound-common_0.2.22-6_all.deb
libgnomesupport0_1.2.13-9_hppa.deb
libcapplet0_1.4.0.1-11_hppa.deb
libgdk-pixbuf2_0.11.0-2_hppa.deb
libgnome32_1.2.13-9_hppa.deb
libpanel-applet0_1.4.0.4-6_hppa.deb
libbz2-1.0_1.0.1-12_hppa.deb
libgnome32_1.2.13-9_hppa.deb
libgtkxmhtml1_1.2.13-9_hppa.deb
libgdk-pixbuf-gnome2_0.11.0-2_hppa.deb
libzvt2_1.2.13-9_hppa.deb
libglade0_0.16-4_hppa.deb
libglade-gnome0_0.16-4_hppa.deb
libgtop1_1.0.12-2.2_hppa.deb
gdm_2.2.3.1-2_hppa.deb

And this gdm failled to start?
in /var/log/daemon.log: ...gdm[..]: Failed to start the display server
several times in a short time period; disable display :0

I well see the server trying restart severall time but without other error
logged elsewhere? Any idea (about the problem or how to log more)?

Against, if I remove only gdm and re-install xdm, I got well xdm login
screen but when I try to login with my user account it failed but I got
severall errors:

1) in auth.log:
    PAM unable to dlopen(/lib/security/pam_condev.so)
    PAM [dlerror: /lib/security/pam_condev.so: cannot open shared object
file: No such file or directory]
    PAM adding faulty module: /lib/security/pam_condev.so

Note:
/lib/security/pam_condev.so is not really installed on the system.
On http://www.debian.org/distrib/packages I try to find which package could
supply it but
"Debian package contents search results

FILE                                                       PACKAGE

No responses to your query."


2) in xdm.log:
rm: cannot remove '/var/run/xconsole:0.pid': No such file or directory
ioctl FBIOPAN_DISPLAY: Invalid argument
PEXExtensionInit: Couldn't open default PEX font file  Roman_M

Note:
/var/run/xconsole:0.pid does not exist but well /var/run/xconsole.:0.pid
(additional dot between e and :)


Thanks in advance for all advises,
     Joel

PS: I got the same problem as well as with 2.4.6-pa22 (20010801) as
2.4.7-pa1 (20010802)




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From - Thu Nov 08 21:18:43 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:11797

On Fri, Aug 03, 2001 at 01:25:33PM +0800, Andrew Shugg wrote:
> Quoth Bjoern A. Zeeb:
> > On Thu, 2 Aug 2001, Matthew Wilcox wrote:
> > > They're all available in the debian archive.  I don't think we have
> > > plans to produce any more CDs until the Debian Woody release (probably
> > > December).
> > 
> > Could you point me to some URL (incl. subdir) please ?
> 
> If you've got apt configured (/etc/apt/apt.conf, /etc/apt/sources.list)
> then you don't need to worry about finding things directly.  After doing
> an 'apt-get update' to fetch the current Packages files and rebuild the
> local package database, you can say 'apt-cache search foo' and it will
> show you all the packages called foo or with foo in their description.
> A simple 'apt-get install foo-dev' will download and install the foo-dev
> package and any other package it may require according to its
> dependencies.

If for some reason you do want to find things directly, you should
be aware that pkgs live in a pool now, and you wont find much under
a sid/main/binary-hppa dir on your local mirror.  For example, libc6-dev
would be found under /pub/mirrors/debian/pool/main/g/glibc.  That one
is under 'g' because the source pkg is glibc.  But as Andrew said, apt
is right way to install things normally.

Richard





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On Fri, 3 Aug 2001, Richard Hirst wrote:

> If for some reason you do want to find things directly, you should
> be aware that pkgs live in a pool now, and you wont find much under
> a sid/main/binary-hppa dir on your local mirror.  For example, libc6-dev
> would be found under /pub/mirrors/debian/pool/main/g/glibc.  That one
> is under 'g' because the source pkg is glibc.  But as Andrew said, apt
> is right way to install things normally.

That's it. thanks.

Is apt proxy-aware ?

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/





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From: Helge Deller <helge.deller@sap.com>
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Subject: Re: [parisc-linux] XFree86 on B180
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> On the B180 I use the same XF86config as on 712/80, the one from  Thomas
> Bogendoerfer available at:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-June/012928.html
> ......
>
> With kernels 2.4.0-32 and 2.4.6 xdm failed because:
> "(EE) No devices detected.
>
> Fatal server error:
> no screen found.
> ..."

Hi Jol,

The only way to get XFree86 running on parisc atm is to use the XFree86-fbgen (framebuffer) 
driver in conjunction with the kernel stifb driver. This means, that if you see the graphical 
pengiun (TUX) at bootup on your screen, XFree86 should  run. If you don't see it, you have a 
not yet by stifb supported graphic chip in your machine.
Currently stifb will run on most 712 and 715 machines, while B160, B180, C3000 and most
others won't.

Greetings,
Helge
-- 
_______________________________________________________________________

THE BEST RUN E-BUSINESSES RUN SAP
_______________________________________________________________________

Helge Deller                            email: helge.deller@sap.com
SAP AG Walldorf/Baden, Germany         
LinuxLab                               

SAP LinuxLab support address: linux@sap.com




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From: Andrew Shugg <andrew@neep.com.au>
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Quoth Richard Hirst:
> If for some reason you do want to find things directly, you should
> be aware that pkgs live in a pool now, and you wont find much under
> a sid/main/binary-hppa dir on your local mirror.

That's right, and the relative path of the file can be found in the
"Filename:" field of 'apt-cache show packagename'.  Append this to the
URL in your /etc/apt/sources.list and you have the complete URL of that
package to download, if for some reason you need to do the downloading
on another system.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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From: Andrew Shugg <andrew@neep.com.au>
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Quoth Bjoern A. Zeeb:
> That's it. thanks.
> 
> Is apt proxy-aware ?

man 5 apt.conf

=)

It sure is, add something like this in your /etc/apt/apt.conf:


// Options for the downloading routines
Acquire
{
  
  // HTTP method configuration
  http 
  {
    Proxy "http://proxy.internal.neep.com.au:3128/";
  };
};


apt-get will also obey the $http_proxy environment variable.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Subject: Re: [parisc-linux] XFree86 on B180
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Hello Helge,

Thanks a lot for information,
     Joel



                                                                           =
                                       =20
                    Helge Deller                                           =
                                       =20
                    <helge.deller        To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD,                            =20
                    @sap.com>            parisc-linux@lists.parisc-linux.or=
g@SMTP@EUROPAY,                        =20
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EUROPAY                                =20
                    03-08-01             cc:                               =
                                       =20
                    12:45 PM             Subject:     Re: [parisc-linux] XF=
ree86 on B180                          =20
                                                                           =
                                       =20
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                                       =20



> On the B180 I use the same XF86config as on 712/80, the one from  Thomas
> Bogendoerfer available at:
>
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-June/012928.html
> ......
>
> With kernels 2.4.0-32 and 2.4.6 xdm failed because:
> "(EE) No devices detected.
>
> Fatal server error:
> no screen found.
> ..."

Hi Jo=EBl,

The only way to get XFree86 running on parisc atm is to use the
XFree86-fbgen (framebuffer)
driver in conjunction with the kernel stifb driver. This means, that if you
see the graphical
pengiun (TUX) at bootup on your screen, XFree86 should  run. If you don't
see it, you have a
not yet by stifb supported graphic chip in your machine.
Currently stifb will run on most 712 and 715 machines, while B160, B180,
C3000 and most
others won't.

Greetings,
Helge
--
_______________________________________________________________________

THE BEST RUN E-BUSINESSES RUN SAP
_______________________________________________________________________

Helge Deller                            email: helge.deller@sap.com
SAP AG Walldorf/Baden, Germany
LinuxLab

SAP LinuxLab support address: linux@sap.com





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From - Thu Nov 08 21:18:43 2018
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From: Wichert Akkerman <wichert@wiggy.net>
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Subject: [parisc-linux] Re: strace updates
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To: Matthew Wilcox <willy@ldl.fc.hp.com>
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Previously Matthew Wilcox wrote:
> most of the entries for sys_fcntl64 just do printargs, but it's identical
> to sys_fcntl.

Good point, fixed now.

> i can't see how to build this from the sourceforge CVS -- i run autoconf
> but config.h.in is not found.  probably because it's part of .cvsignore.

You have to run autoheader first, see the cvsbuild script.

Wichert.

-- 
  _________________________________________________________________
 /       Nothing is fool-proof to a sufficiently talented fool     \
| wichert@wiggy.net                   http://www.liacs.nl/~wichert/ |
| 1024D/2FA3BC2D 576E 100B 518D 2F16 36B0  2805 3CB8 9250 2FA3 BC2D |




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems with Installing of 0.9.2 on HP 715/100
Date: Fri, 03 Aug 2001 10:26:42 -0600
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To: Martin Eisfeld <me@hedd.de>
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   of "Fri, 03 Aug 2001 11:26:21 +0200." <3B6A6E3D.40CF73C1@hedd.de> 
Xref: news.gmane.org gmane.linux.ports.parisc:11804

Martin Eisfeld wrote:
> here are the full putput from serial terminal (terminalemulation with
> hyperterminal from winnt).

FYI, Richard Hirst put the System.map for 0.9.2 at:
	http://puffin.external.hp.com/~rhirst/sys_map.0.9.2-32.gz
	http://puffin.external.hp.com/~rhirst/sys_map.0.9.2-64.gz

gunzip and rename to System.map. Then 'a' (see CVS build-tools repository)
can pull the symbols out given the hex address.

...
> ELF32 executable
> Entry 00100000 first 00100000 n 4
> Segment 0 load 00100000 size 1606948 mediaptr 0x1000
> Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
> Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
> Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
> Loading ramdisk 1991209 bytes @ 0fe09000...
> branching to kernel entry point 0x00100000
> Set default PSW W bit to 0
> 0x02.CBF0
> 0x02.503F

I'm going to guess the system HPMC's at this point and then
our HPMC handler faults (Code 15). Symbols found in the
the stack dump were:
0x1028a010 $global$+0
0x10106750 skip_save_ior+164
0x10102220 handle_interruption+138
0x10292080 hpmc_stack+80
0x10292080 hpmc_stack+80
0x10102614 parisc_terminate+48
0x102565e4 packet_exit+cd8
0x10292080 hpmc_stack+80
0x10102568 show_stack+4c
0x10337010 pidhash+dfc
0x10102614 parisc_terminate+48
0x10256000 packet_exit+6f4
0x10292080 hpmc_stack+80
0x1029f3c0 exec_domains_lock+0
0x1028a010 $global$+0
0x10292700 hpmc_stack+700
0x10102574 show_stack+58
0x10102578 show_stack+5c
0x10106750 skip_save_ior+164

(found using "astk" script)

Could you post the PIM dump?
PIM dump is available from BOOT_ADMIN prompt by just typing "PIM HPMC"
after the machine resets. This will tell us if/where the kernel died when
accessing IO space.

FWIW, here are symbols for Code 15 register dump:
IOAQ 0x10102574 show_stack+58
GR02 0x10102614 parisc_terminate+48

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Subject: [parisc-linux] GNU C++ 2.95 to 3.0 guide line?
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Hi all,

I try to rebuild menu (for twm) and some other c++ libraries (for fun). But
I encounter many messages: parse error before ')' token.
I scan a little bit faq of gnu c++ but I do not find any guide-line to
"upgrade" code from c++ 2.95 to 3.0.
Is somebody knows where to find this kind of info?

Thanks in advance,
     Joel



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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715/80 not booting (kernel crashes)
Date: Sat, 4 Aug 2001 14:54:23 +0100
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To: S Looman <steve__l__@hotmail.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:11806

On Thu, Aug 02, 2001 at 11:03:32AM +0200, S Looman wrote:
> Hi,
> 
> Just got a 715/80 box from a friend and started playing with it, but HP-UX 
> sucks and wanted to install linux on it.
> I downloaded the iso-image yesterday and booted it.
> 
> The cd boots, starts loading the kernel 'n stuff. But then it panics.
> 
> It has the same dump as this email: 
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/013193.html
> 
> I guess using another kernel should fix it, but I can't build any kernel...
> 
> Can anybody give me a kernel (or suggestions)?

It is very unlikely that you get the same dump as that mail reported,
as that was froma 2.4.6 kernel, while the ISO uses a 2.4.0 one.

Are you using a serial or graphical console?  Serial console is more
likely to work, and has the advantage that you can capture the output
(with minicom, for example), to post here.

Which ISO are you using?  0.9 or 0.9.2?

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems with Installing of 0.9.2 on HP 715/100
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To: Martin Eisfeld <me@hedd.de>
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On Thu, Aug 02, 2001 at 01:54:10PM +0200, Martin Eisfeld wrote:
> Hello everyone,
> I have a big proplem of installing PA-RISC Linux 0.9.2 on a HP9000 Model
> 715/100.

I tried a 715/50 last week; it worked fine with serial console, but
with graphical console it rebooted early in the kernel boot sequence.

Can you switch to a serial console and try again?

Richard





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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] The new parisc-linux-boot HOWTO
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Hi all,

	I just want to announce to you that I published a draft version of a
new version of parisc-linux-boot HOWTO.
The old one can be found at
http://www.ibiblio.org/oswg/oswg-nightly/oswg/en_US.ISO_8859-1/articles/parisc-linux/parisc-linux-boot
,for example.

Mine is on line at http://mkhppa02.esiee.fr:8000/New-parisc-linux-boot/
Since it is my first HOWTO and SGML text, I would like to know your
feedback. So, if you have anything to change or to add, please mail me.
Some links could look broken (esp. esiee's one) but it is temporary. (I
hope)

Regards, Thomas
ESIEE Team




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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] A general cleanup & overhaul of native device handling
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On Wed, Aug 01, 2001 at 04:59:03PM +0100, Matthew Wilcox wrote:
> At some point, I'm going to try booting a machine with this patch applied
> and see what happens.  I expect it to explode messily right now, tbh, but
> at least it compiles.  I'm interested in criticism of this architecture.
> After I get this hunk of work done, I'll move on to an iotree, and maybe
> then to actually doing hotplug for native devices... that isn't high on
> my priority list and I'd be happy to leave it to somebody else :-)

It was actually less messy than I thought.  The only issue which arose
was because i modularised Lasi & Asp without rearranging the order devices
are initialised in.  I decided to solve that one by demodularising these
two drivers rather than changing intialisation order because I think I
have a better way of fixing this, which will involve implementing the
fabled iotree.

I fixed a couple of minor thinkos from the original patch -- I didn't mean
to include an in-progress partial rewrite of some of the PCI inb/outw/etc
functions.  I probably made fallback processor detection work again.
And I missed a s/d/dev/ in lba_pci.

Anyway, this patch now works for me on a 712 & J7k.  With this kind of
patch, it's likely to break one random machine out there (and, on past
experience, it'll be lamont's...) , so I'd like to get people testing
as widely as possible.  The patch is against 2.4.7-pa1, and can be found
at ftp://puffin.external.hp.com/pub/parisc/src/parisc_device-2.diff

I am planning on committing this patch soon, so please test ASAP.
I'm particularly interested in seeing reports from 715/Scorpio, J2xx/C1xx
and B1xx/C1xxL machines.

If you feel you own any of these files, you should also at least glance
at the patch:

$ diffstat parisc_device-2.diff 
 arch/parisc/kernel/ccio-dma.c  |   60 ++++-----
 arch/parisc/kernel/drivers.c   |  259 ++++++++++++++++++++---------------------
 arch/parisc/kernel/firmware.c  |    1 
 arch/parisc/kernel/hardware.c  |    9 -
 arch/parisc/kernel/inventory.c |   32 +----
 arch/parisc/kernel/iosapic.c   |    2 
 arch/parisc/kernel/lba_pci.c   |  100 +++++++--------
 arch/parisc/kernel/led.c       |    2 
 arch/parisc/kernel/sba_iommu.c |  121 +++++++------------
 arch/parisc/kernel/setup.c     |   65 +++++-----
 drivers/char/hp_psaux.c        |   61 +++++----
 drivers/gsc/asp.c              |   34 +++--
 drivers/gsc/busdevice.c        |   49 ++-----
 drivers/gsc/busdevice.h        |   18 --
 drivers/gsc/dino.c             |  173 ++++++++++-----------------
 drivers/gsc/hil.c              |   39 +++---
 drivers/gsc/lan.c              |   59 +++++----
 drivers/gsc/lasi.c             |   51 +++++---
 drivers/gsc/serial.c           |  127 ++++++--------------
 drivers/gsc/wax.c              |   47 ++++---
 drivers/gsc/wax_eisa.c         |   53 ++++----
 drivers/parport/parport_gsc.c  |   34 +++--
 drivers/scsi/lasi7xx.c         |   64 ++++------
 drivers/scsi/zalon7xx.c        |   66 +++++-----
 drivers/sound/harmony.c        |   38 +++---
 drivers/video/sti/sticore.c    |   10 -
 include/asm-parisc/gsc.h       |    4 
 include/asm-parisc/hardware.h  |   87 ++++++-------
 include/asm-parisc/iosapic.h   |    2 
 include/asm-parisc/pci.h       |    4 
 include/asm-parisc/processor.h |    2 
 31 files changed, 776 insertions, 897 deletions


-- 
Revolutions do not require corporate support.




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From: "Frank Amo" <frankandlinux@hotmail.com>
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Subject: [parisc-linux] linux problem
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This is a multi-part message in MIME format.

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I have redhat linux 6.1 running on a PII 350mhz 384mb ram and a
western digital 30gb harddrive configured with the Workstation Package.

EveryThing was working fine until I blindly plugged in a nameless
modem and began trying to use the "ppp configuration utility" for lack
of better terms to configure the internal modem and establish an internet
connection.

Where I appearantly generated the error for the first time was when
i began adding ppp1 ppp2 and ppp3 with different names and information
then going into the /etc/sysconfig/network-scripts and initializing the
ppp by using the following lines

/etc/sysconfig/network-scripts/ifcfg-ppp0 start
/etc/sysconfig/network-scripts/ifcfg-ppp1 start
/etc/sysconfig/network-scripts/ifcfg-ppp2 start
/etc/sysconfig/network-scripts/ifcfg-ppp3 start

then I opened those files and made the ifcfg-pppX devices
bootable by typing "yes" using vi.
ONBOOT=yes

After rebooting I first could not reboot the computer at all without
the initialization of the ppp3 hanging up my system literally all day.
So after forcing a reboot /dev/hda5 has an error "corrupt filesystem",
so when I log in to the system for maintenance as prompted I run
fsck -p /dev/hda5 it either says that it is clean or asks me to
fix it by checking for bad blocks.

When the process completes it allows me to reboot the system and passes
the fsck during bootup after bootup once again the ppp3 adapter hangs
the system endlessly.

I even booted to "linux single" i login ok and navigate the filesystem
but I cannot obtain any permissions (obviously) to (rwx) so I cannot
copy or delete any files on my system.

I would like to know if there is any way to go around the system
to get rid of that ppp stuff and if there are any other possible
and permanent damages to my operating system.

If there are damages to my operating system, how can I copy all of
my important files and work without reinstalling the operating system,
I cannot even upgrade to 7.1.

I appreciate any tips, thanks

frankandlinux@hotmail.com



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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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On Fri, Aug 03, 2001 at 12:45:01PM +0200, Helge Deller wrote:
> Currently stifb will run on most 712 and 715 machines, while B160, B180,
> C3000 and most others won't.

you saw X on the B180 I had at LinuxTag:-) Treating the EG VISULIZE as an 
artist graphics card did the trick.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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i would like to reinstall hpux on the d310 that i have to free up a few of
the drives for eventual linux use. which cd's do i need and how do i start
the install? i thought i had the complete set but none of the are
bootable.

also, has any more progress been made with the console output on the D
class machines?

thanks

dave


-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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This is a summary and a design document for building an iotree in PA/Linux.
Grant, Ryan, if I mis-remembered / misunderstood something, do shout.

There are two sources of information about what devices are in the
machine.  There's an Architected Bus Walk, which basically says `probe
devices at the following addresses'.  Code to do this already exists
in do_native_bus_walk.  The other way of finding devices is to ask PDC.
All non-architected devices (ie devices which won't be discovered by an
ABW) are known to PDC.

PDC also knows about other devices, including some PCI devices and some
of the architected devices, so some devices may get discovered twice.
Also, PDC occasionally has bugs (see the J2240 Dino and 715/Scorpio
card-mode Dino entries for examples).  And there are three types of PDC
to deal with -- PAT PDC on some 64-bit boxes, PDC which supports the
PDC_SYSTEM_MAP call, and PDC which predates the PDC_SYSTEM_MAP call.

In a related matter, the ABW will pick up serial ports (and other things)
which aren't activated.  Grant said there was a PDC call to determine
whether a device is inactive -- I'm not sure which one that is yet.

Here's my plan:

 * From setup_arch, call PDC to get a list of devices.  Put them in a
   table (marked __init, will be freed later).
 * In the badly-named gsc_init, or perhaps in pcibios_init, start the
   ABW at 0xFFF80000 -- this seems to be the defined location for the
   central bus.
 * Start creating the tree with devices that we find in the ABW.
   Each device which is a bus adapter / converter will do an ABW for its
   children, and add in any PDC-discovered devices in the table which are
   its immediate children.  The add-in is done by copy, not by reference.
 * At some indeterminate time after this, the table of PDC-reported drivers
   gets freed along with all the other __init data & code.

We'll have to be careful with CPU `drivers' since they will have stale
pointers which must be updated.  Perhaps this is where a ->remove method
would come in handy; or perhaps we just magically make them cope with
their ->probe function being called a second time on the same device
(same HPA).

Feedback welcome.

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] more serial console problems on D310
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I grabbed the 20010704 kernel source and net booted my d310 with it
combined with the ramdisk from the 0.9.2 install image. I start with the
serial console on the serial connector labeled "serial console". Output
only comes through there until the kernel starts, then I have to switch
over to the other serial port on the machine to see the rest of the boot
messages. They come quickly until the root filesystem is mounted. It looks
like I lose interrupts after that because everything is written in blocks
of 16 characters with long (15 second?) pauses in between blocks. After
getting this message:
VFS: Mounted root (ext2 filesystem).
serial console detected.  Disabling virtual terminals.

the cursor just tabs along the screen by itself without printing
anything. 

Any ideas? Why is the first serial port not being detected/used?

dave


-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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From: Helge Deller <helge.deller@sap.com>
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Subject: Re: [parisc-linux] XFree86 on B180
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Hi Thomas

On Sunday 05 August 2001 16:48, Thomas Bogendoerfer wrote:
> On Fri, Aug 03, 2001 at 12:45:01PM +0200, Helge Deller wrote:
> > Currently stifb will run on most 712 and 715 machines, while B160, B180,
> > C3000 and most others won't.
>
> you saw X on the B180 I had at LinuxTag:-) Treating the EG VISULIZE as an
> artist graphics card did the trick.

... and including this patch/assumption would break too many other machines 
(esp. 64bit machines, e.g. the c3k) and make the kernel unusable for much 
more people.
But I now have contact to someone inside HP which has far more knowledge 
than me about STI and we're working on a cleaner solution (at least as far as 
my time permits me currently).

Greetings,
Helge




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Subject: Re: [parisc-linux] XFree86 on B180
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Thomas,

Nice.

Sorry but with xf86config I try to scan all available card and do not find
any reference to "artist graphic". It is certainly well know under another
achronim but I do not find (AGX?).

May I ask you the favour to sen d me your XF86config file?

Thanks in advance for help,
     Joel



                                                                           =
                                           =20
                    Thomas                                                 =
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                    Bogendoerfer             To:     Helge Deller <helge.de=
ller@sap.com>@SMTP@EUROPAY                 =20
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RCARD@MASTERCARD,                            =20
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x.org@SMTP@EUROPAY,                        =20
                                             debian-hppa@lists.debian.org@S=
MTP@EUROPAY                                =20
                    05-08-01 04:48 PM        Subject:     Re: [parisc-linux=
] XFree86 on B180                          =20
                                                                           =
                                           =20
                                                                           =
                                           =20



On Fri, Aug 03, 2001 at 12:45:01PM +0200, Helge Deller wrote:
> Currently stifb will run on most 712 and 715 machines, while B160, B180,
> C3000 and most others won't.

you saw X on the B180 I had at LinuxTag:-) Treating the EG VISULIZE as an
artist graphics card did the trick.

Thomas.

--
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel
]





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From - Thu Nov 08 21:18:44 2018
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From: "Smith, Todd" <Todd.Smith@Camcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] The new parisc-linux-boot HOWTO
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Hello Thomas,

I want to thank you for your work on the HOWTO.  It looks very
straight-forward and it answered the questions that I had about the process.

Thank you for your time.

Todd Smith <todd.smith@camcare.com>




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From: Reinhard Gimbel <Reinhard.Gimbel@freenet.de>
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Subject: [parisc-linux] C180: no real progress :-(
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Hi friends !

In the past days I learned a lot about HP workstations and the 
Linux port to hppa/parisc.

After I could exchange my first used C180 (256 MB, 2*4,5 GB 
FWSCSI HDD, GRAPHICS(3) accelerated graphics) by a newer model 
of the same series (C180) I tried to get palinux-0.9.2 
up-n-running on that box.

Few weeks ago I posted some thoughts I had in this mailing list 
because palinux-0.9.2 was crashing on the older box all the 
time during installation.

Some kernel messages led my in the false direction. I thought 
DINO (h/w v2.1; or better the software glue of DINO) was the 
root cause of "my" problems. This box had firmware v2.7.

Installation via network/NFS did not work because of problems; 
With the older box i tried many things (100Mbps, 10Mbps, Hub, 
cross-over cable) but no success ...

After I got the replacement on Friday (DINO v3.1 [which should 
be ok. according the kernel messages ...], firmware v5.1) the 
problems are still present.

BTW: Grant, you are right ! But newer firmware seems not to 
solve the problem ...

I tried serial console device as well as STI console [PS/2 
keyboard/mouse, GRAPHICS(0) with PC-style video monitor via HP 
adaptor connector].

The C180 boots palinux-0.9.2 from CD (additional drive at 
SESCSI). The system crashes either during kernel/driver 
installation (1st stage) or during "software" installation (2nd 
stage).

Only one time I could get the system installed from serial 
console. As I tried to switch to STI console the keyboard port  
problem hit me; The only chance was to reboot the box. As a 
result the root filesystem was corrupted so hard that fsck had 
problems tpo repair the corrupted filesystem ... :-(

At this point I have some (foe me) important questions:

Has anybody a running C180 under palinux-0.9.2 ?

Has anybody similar problems with other HP w/s and could solve 
those problems ? How solved ?

Some hints to the kernel guys:

[1] Try to fix the keyboard port problem ! I don't know how 
many reboots I had top handle this weekend but un-/replugging 
the keyboard is very boring ... :-)

[2] Try to get full support of any key (at least german 
keyboard support lacks on essential things ...) eg. no 
pipe/vertical bar; no support of capslock (keyboard unusable 
after accidently hit capslock; nothing helped; un-/replug, too)

[3] Sometimes I could see a message like
"ioctl: LOOP_CLR_FD: No such device or address"
short time before the C180 crashed. Any idea ?

Some hints to the system guys:

[1] Do real disabling of "dhcp-client" if it is set to "no" 
during installation. (Those kernel message caused by 
dhcp-client are boring; try it with open editor; great ;-)

[2] Try to include a date check/set into the installation 
routine; user should be informed about hardware clock setting)


I'm still trying to get that beast (= my C180) up-n-running !

Any help would be great !


Reinhard.




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] C180: no real progress :-(
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On Mon, Aug 06, 2001 at 10:38:13PM +0200, Reinhard Gimbel wrote:
> The C180 boots palinux-0.9.2 from CD (additional drive at 
> SESCSI). The system crashes either during kernel/driver 
> installation (1st stage) or during "software" installation (2nd 
> stage).

I have heard of a C160 with what could be similar problems.  The C160
has internal diff scsi drives, and it seems that using that interface
causes disk corruption.  The only way he managed an install was to
disconnect all devices from the diff scsi interface, and install to
disks on the external scsi.  Is that something you can try easily?
Note, he had to physically disconnect the diff disks, it wasn't sufficient
to simply not use them.

What scsi interfaces does that box have anyway?  Boot up msgs should
mention chip numbers - 53c710, 53c720, etc.

> [1] Try to fix the keyboard port problem ! I don't know how 
> many reboots I had top handle this weekend but un-/replugging 
> the keyboard is very boring ... :-)

That problem is being actively worked on.

> [2] Try to get full support of any key (at least german 
> keyboard support lacks on essential things ...) eg. no 
> pipe/vertical bar; no support of capslock (keyboard unusable 
> after accidently hit capslock; nothing helped; un-/replug, too)

Hmm, yeah; I had a UK keyboard where pipe key didn't work.  I got it
with <alt>+124 on the numeric pad, or with <alt-gr> and the key to
the left of '1' (back-quote, etc).  Obviously needs fixing though.

> [3] Sometimes I could see a message like
> "ioctl: LOOP_CLR_FD: No such device or address"
> short time before the C180 crashed. Any idea ?

That's a feature of the installer ;)  Happens on all archs and is harmless.

> Some hints to the system guys:
> 
> [1] Do real disabling of "dhcp-client" if it is set to "no" 
> during installation. (Those kernel message caused by 
> dhcp-client are boring; try it with open editor; great ;-)

That is a problem with the dhcp-client package, again common to all
archs.  The solution is "rm /etc/rc?.d/*dhcp-client".  It has been
discussed on the debian-boot list, and hopefully someone will fix it.
It has been suggested that we switch back to using pump.  There is a
new version of dhcp-client in experimental, but it is much bigger, which
causes problems for people that boot from floppies, at least.

> [2] Try to include a date check/set into the installation 
> routine; user should be informed about hardware clock setting)

I agree, telling what the time is in GMT and in your timezone without
giving you a chance to do anything about it is a little pointless.  You
can use the firmware to set it correctly before you start, but if you are
like me you always forget until it is too late.

Richard





From - Thu Nov 08 21:18:45 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:11820

Can J282 CPU be put into J200, or J210? Is there any corss-reference
available for CPU boards and what machines they can fit into?


Tony






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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] J series question
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Hi Tony,

According to
http://hwdb.parisc-linux.org/view.php3?type=machine&name=J282 , the
model is a 780 Firhawk with a PCXU cpu. As far as I know, it is onee of
the model in 64 bits. And the J200/210 are 770 models with PCXT'. In my
opinion, you should not do that but I may be mistaken.
 
> Can J282 CPU be put into J200, or J210? Is there any corss-reference
> available for CPU boards and what machines they can fit into?
 
Thomas.
ESIEE Team




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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] The final patch for the keyboard problem
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This is a multi-part message in MIME format.
--------------4B071F3141DE6CF374BA41D0
Content-Type: text/plain; charset=us-ascii
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Hi all,

	It is my last patch solving the keyboard problem on BXXX and CXXX. It
should correct most of them but I would like to have feedback before I
check the bug report. I must also add that this patch is not yet tested
with Matthew Wilcox's version, according to his mail (
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-August/013302.html
). I will do it as soon as possible.

Regards, Thomas.
ESIEE Team
--------------4B071F3141DE6CF374BA41D0
Content-Type: text/plain; charset=us-ascii;
 name="keyboard.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="keyboard.patch"

diff -Nru linux/drivers/char/hp_psaux.c linux.new/drivers/char/hp_psaux.c
--- linux/drivers/char/hp_psaux.c	Wed Aug  1 00:11:04 2001
+++ linux.new/drivers/char/hp_psaux.c	Tue Aug  7 09:10:39 2001
@@ -42,6 +42,7 @@
 
 /* HP specific LASI PS/2 keyboard and psaux constants */
 #define	AUX_REPLY_ACK	0xFA	/* Command byte ACK. */
+#define	AUX_RESEND	0xFE	/* Sent by the keyb. Asking for resending the last command. */
 #define	AUX_RECONNECT	0xAA	/* scancode when ps2 device is plugged (back) in */
 
 #define	LASI_PSAUX_OFFSET 0x0100 /* offset from keyboard to psaux port */
@@ -70,8 +71,7 @@
 #define LASI_STAT_CLKSHD 0x80
 
 static void *lasikbd_hpa;
-static void *lasips2_hpa;
-
+static int cmd_status;
 
 static inline u8 read_input(void *hpa)
 {
@@ -105,9 +105,10 @@
 		}
 	}
 
+#if 0
 	if (wait)
 		printk(KERN_DEBUG "Lasi PS/2 wait %d\n", wait);
-	
+#endif
 	gsc_writeb(val, hpa+LASI_XMTDATA);
 
 	return 1;
@@ -122,9 +123,23 @@
 
 static void lasikbd_leds(unsigned char leds)
 {
-	write_output(KBD_CMD_SET_LEDS, lasikbd_hpa);
-	write_output(leds, lasikbd_hpa);
-	write_output(KBD_CMD_ENABLE, lasikbd_hpa);
+	cmd_status=2;
+	while (cmd_status!=0) {
+		write_output(KBD_CMD_SET_LEDS, lasikbd_hpa);
+		mdelay(1); 
+	}
+   
+	cmd_status=2;
+	while (cmd_status!=0) {
+		write_output(leds, lasikbd_hpa);
+		mdelay(1);
+	}
+
+	cmd_status=2;
+	while (cmd_status!=0) {
+	   write_output(KBD_CMD_ENABLE, lasikbd_hpa);   
+	   mdelay(1);
+	}
 }
 
 #if 0
@@ -154,10 +169,56 @@
 }
 #endif 
 
-static int __init lasi_ps2_reset(void *hpa, int id)
+static int init_keyb(void* hpa)
+{
+	int fail;
+	u8 data;
+	
+	
+	do {
+		while ((read_status(hpa) & LASI_STAT_TBNE)==0x01);
+		gsc_writeb(KBD_CMD_SET_LEDS, hpa+LASI_XMTDATA);
+		
+		while ((read_status(hpa) & LASI_STAT_RBNE)==0x00);
+		
+		while ((read_status(hpa) & LASI_STAT_RBNE)==0x01) data=read_input(hpa);      
+	}while(data!=AUX_REPLY_ACK); 
+	
+	fail=0;
+	
+	do {
+		while ((read_status(hpa) & LASI_STAT_TBNE)==0x01);
+		gsc_writeb(0x00, hpa+LASI_XMTDATA);
+		
+		while ((read_status(hpa) & LASI_STAT_RBNE)==0x00);
+   
+		while ((read_status(hpa) & LASI_STAT_RBNE)==0x01) {
+			data=read_input(hpa);
+			fail++; 
+			if(fail==10) break; 
+		}
+   	}while(data!=AUX_REPLY_ACK); 
+
+	fail=0;
+	do {   
+		while ((read_status(hpa) & LASI_STAT_TBNE)==0x01);
+		gsc_writeb(KBD_CMD_ENABLE, hpa+LASI_XMTDATA);
+      
+		while ((read_status(hpa) & LASI_STAT_RBNE)==0x00);
+		while ((read_status(hpa) & LASI_STAT_RBNE)==0x01) {
+			data=read_input(hpa);
+			fail++; 
+			if(fail==10) break; 
+		}
+
+	}while(data!=AUX_REPLY_ACK); 
+   
+	return 1;
+}
+
+static void __init lasi_ps2_reset(void *hpa)
 {
 	u8 control;
-	int ret = 1;
 
 	/* reset the interface */
 	gsc_writeb(0xff, hpa+LASI_RESET);
@@ -166,25 +227,8 @@
 	/* enable it */
 	control = read_control(hpa);
 	write_control(control | LASI_CTRL_ENBL, hpa);
-
-        /* initializes the leds at the default state */
-        if (id==0) {
-           write_output(KBD_CMD_SET_LEDS, hpa);
-	   write_output(0, hpa);
-	   ret = write_output(KBD_CMD_ENABLE, hpa);
-	}
-
-	return ret;
 }
 
-static int inited;
-
-static void lasi_ps2_init_hw(void)
-{
-	++inited;
-}
-
-
 /* Greatly inspired by pc_keyb.c */
 
 /*
@@ -362,7 +406,7 @@
 	lock_kernel();
 	fasync_aux(-1, file, 0);
 	if (--aux_count) {
-	   unlock_kernel();
+		unlock_kernel();
 		return 0;
 	}
 	unlock_kernel();
@@ -398,62 +442,60 @@
         id = gsc_readb(hpa+LASI_ID) & 0x0f;
         
         if (id==1) 
-           hpa -= LASI_PSAUX_OFFSET; 
-        lasikbd_hpa = hpa;
-        
-
+		hpa -= LASI_PSAUX_OFFSET; 
+	
         status_keyb = read_status(hpa);
         status_mouse = read_status(hpa+LASI_PSAUX_OFFSET);
 
         while ((status_keyb|status_mouse) & LASI_STAT_RBNE){
            
-           while (status_keyb & LASI_STAT_RBNE) {
+		while (status_keyb & LASI_STAT_RBNE) {
 	      
-              scancode = read_input(hpa);
+		scancode = read_input(hpa);
 
-	      /* XXX don't know if this is a valid fix, but filtering
-	       * 0xfa avoids 'unknown scancode' errors on, eg, capslock
-	       * on some keyboards.
-	       */
-	      if (inited && scancode != 0xfa)
-		 handle_at_scancode(scancode); 
+	        /* XXX don't know if this is a valid fix, but filtering
+	         * 0xfa avoids 'unknown scancode' errors on, eg, capslock
+	         * on some keyboards.
+	         */
+	      	      
+		if (scancode == AUX_REPLY_ACK) 
+			cmd_status=0;
+			
+		else if (scancode == AUX_RESEND)
+			cmd_status=1;
+		else 
+			handle_at_scancode(scancode); 
 	      
-	      status_keyb =read_status(hpa);
-           }
+		status_keyb =read_status(hpa);
+		}
 	   
 #ifdef CONFIG_PSMOUSE
-           while (status_mouse & LASI_STAT_RBNE) {
-	      scancode = read_input(hpa+LASI_PSAUX_OFFSET);
-	      handle_mouse_scancode(scancode);
-              status_mouse = read_status(hpa+LASI_PSAUX_OFFSET);
-	   }
-           status_mouse = read_status(hpa+LASI_PSAUX_OFFSET);
+		while (status_mouse & LASI_STAT_RBNE) {
+			scancode = read_input(hpa+LASI_PSAUX_OFFSET);
+			handle_mouse_scancode(scancode);
+			status_mouse = read_status(hpa+LASI_PSAUX_OFFSET);
+		}
+		status_mouse = read_status(hpa+LASI_PSAUX_OFFSET);
 #endif /* CONFIG_PSMOUSE */
-           status_keyb = read_status(hpa);
+		status_keyb = read_status(hpa);
         }
 
         tasklet_schedule(&keyboard_tasklet);
         return (status_keyb|status_mouse);
 }
-
-
-
 	
 extern struct pt_regs *kbd_pt_regs;
 
 static void lasikbd_interrupt(int irq, void *dev, struct pt_regs *regs)
 {
-	lasips2_hpa = dev; /* save "hpa" for lasikbd_leds() */
 	kbd_pt_regs = regs;
-	handle_lasikbd_event(lasips2_hpa);
+	handle_lasikbd_event(dev);
 }
 
-
 extern int pckbd_translate(unsigned char, unsigned char *, char);
 
 static struct kbd_ops gsc_ps2_kbd_ops = {
 	translate:	pckbd_translate,
-	init_hw:	lasi_ps2_init_hw,
 	leds:		lasikbd_leds,
 #ifdef CONFIG_MAGIC_SYSRQ
 	sysrq_key:	0x54,
@@ -487,20 +529,11 @@
 	}
 	
 	/* reset the PS/2 port */
-	device_found = lasi_ps2_reset(hpa,id);
-
-	/* allocate the irq and memory region for that device */
-	if (!(irq = busdevice_alloc_irq(d)))
-		return -ENODEV;
-		    
-	if (request_irq(irq, lasikbd_interrupt, 0, name, hpa))
-		return -ENODEV;
-	
-	if (!request_mem_region((unsigned long)hpa, LASI_STATUS + 4, name))
-		return -ENODEV;
+	lasi_ps2_reset(hpa);
 
 	switch (id) {
 	case 0:	
+	        device_found = init_keyb(hpa);
 		register_kbd_ops(&gsc_ps2_kbd_ops);
 		break;
 	case 1:
@@ -526,6 +559,18 @@
 #endif
 	} /* of case */
 	
+        /* allocate the irq and memory region for that device */
+	if (!(irq = busdevice_alloc_irq(d)))
+		return -ENODEV;
+		    
+	if (request_irq(irq, lasikbd_interrupt, 0, name, hpa))
+		return -ENODEV;
+	
+	if (!request_mem_region((unsigned long)hpa, LASI_STATUS + 4, name))
+		return -ENODEV;
+
+
+
 	printk(KERN_INFO "PS/2 %s controller at 0x%08lx (irq %d) found, "
 			 "%sdevice attached.\n",
 			name, (unsigned long)hpa, irq,
@@ -548,4 +593,3 @@
 }
 
 module_init(gsc_ps2_init);

From - Thu Nov 08 21:18:45 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] The final patch for the keyboard problem
Date: Tue, 7 Aug 2001 11:58:17 +0100
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To: Thomas Marteau <marteaut@esiee.fr>
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Xref: news.gmane.org gmane.linux.ports.parisc:11823

Hi Thimas,

On Tue, Aug 07, 2001 at 09:27:41AM +0200, Thomas Marteau wrote:

> +static int cmd_status;

Calling this awaiting_ack, and setting it true/false might make the code
more readable.  Also I suspect it should be volatile really, as it is
modified via an interrupt handler.

> +	cmd_status=2;
> +	while (cmd_status!=0) {
> +		write_output(KBD_CMD_SET_LEDS, lasikbd_hpa);
> +		mdelay(1); 
> +	}

Nasty, as it will hang the kernel if the keyboard never ACKs.  Should at
least limit the muber of times you loop here.

> +		while ((read_status(hpa) & LASI_STAT_TBNE)==0x01);

Why not simply

		while ((read_status(hpa) & LASI_STAT_TBNE))
			;

> +	do {
> +		while ((read_status(hpa) & LASI_STAT_TBNE)==0x01);
> +		gsc_writeb(0x00, hpa+LASI_XMTDATA);
> +		
> +		while ((read_status(hpa) & LASI_STAT_RBNE)==0x00);
> +   
> +		while ((read_status(hpa) & LASI_STAT_RBNE)==0x01) {
> +			data=read_input(hpa);
> +			fail++; 
> +			if(fail==10) break; 
> +		}
> +   	}while(data!=AUX_REPLY_ACK); 

Do you really want the third 'while' loop in that block of code?

	loop = 10;
	do {
		while ((read_status(hpa) & LASI_STAT_TBNE))
			;
		gsc_writeb(0x00, hpa+LASI_XMTDATA);
		while (!(read_status(hpa) & LASI_STAT_RBNE))
			;
		data = read_input(hpa);
		loop--;
	} while (data != AUX_REPLY_ACK && loop);

One less while loop, but it can still hang in either of the first two while
loops if the h/w misbehaves.

> +        /* allocate the irq and memory region for that device */
> +	if (!(irq = busdevice_alloc_irq(d)))
> +		return -ENODEV;
> +		    
> +	if (request_irq(irq, lasikbd_interrupt, 0, name, hpa))
> +		return -ENODEV;
> +	
> +	if (!request_mem_region((unsigned long)hpa, LASI_STATUS + 4, name))
> +		return -ENODEV;

Typically a driver would release resources before exiting.  e.g. if
request_mem_region() fails you should release_irq().

There are a couple of compiler warnings also.

Anyway, I'm about to try it on a couple of machines here; I'll let you
know how it goes.

Cheers,
  Richard





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] The final patch for the keyboard problem
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On Tue, Aug 07, 2001 at 11:58:17AM +0100, Richard Hirst wrote:
> Anyway, I'm about to try it on a couple of machines here; I'll let you
> know how it goes.

HP US keyboard on B180.  Worked until I unplugged and replugged the
keyboard.  Keyboard was dead after that, but machine still responded
to pings.

Compaq UK keyboard on B180.  Worked initially, except pressing '\' (to
the left of Z) gave "unrecognised scancode (7f) ignored".  I then pressed
CapsLock, and the machine hung, not even responding to pings.

Went back to the HP keyboard, and CapsLock hangs the machine there also.

Richard





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On Tue, Aug 07, 2001 at 00:13 Richard Hirst wrote:

> I have heard of a C160 with what could be similar problems. 
> The C160 has internal diff scsi drives, and it seems that
> using that interface causes disk corruption.  The only way he
> managed an install was to disconnect all devices from the
> diff scsi interface, and install to disks on the external
> scsi.  Is that something you can try easily? Note, he had to
> physically disconnect the diff disks, it wasn't sufficient to
> simply not use them.

Any idea how one could connect the drives without those 
expensive Fast/Wide SCSI cables (The box I got is from a local 
2nd hand computer dealer for approx USD 50 ...)

What do you mean with "external" SCSI ? If I connect the drives 
to the connector on the backplane isn't it the same FWSCSI 
channel as the internal one (which might be buggy) ? Or is it a 
seperate channel ?

Should I use one of the PCI slots to install a seperate SCSI 
host adaptor ? Could be an idea but actually I don't have an 
extra FWSCSI PCI adaptor on hand (I would like to use the 
internal 4.5 GB FWSCSI drives ...)

I also don't have a seperate external FWSCSI box where I could 
put the C180 internal drives in. (Again, I'm doing this as a 
hobby and my wife will propably kill me if I buy boxes and 
cables for lets say USD 150 ... ;-)

Isn't there another way to go ?

On that box was HP-UX 10.20 installed and the hardware is still 
the same. So there must/could be a software solution, right ?

BTW: Is that a problem of C1xx only ? Or is that problem known 
with other HP PA-Risc workstations, too ?

> What scsi interfaces does that box have anyway?  Boot up msgs
> should mention chip numbers - 53c710, 53c720, etc.

According to the boot message its a 53c710 for the SESCSI 
channel and a 53c720 for the FWSCSI channel

> > [2] Try to get full support of any key (at least german
> > keyboard support lacks on essential things ...) eg. no
> > pipe/vertical bar; no support of capslock (keyboard
> > unusable after accidently hit capslock; nothing helped;
> > un-/replug, too)
>
> Hmm, yeah; I had a UK keyboard where pipe key didn't work.  I
> got it with <alt>+124 on the numeric pad, or with <alt-gr>
> and the key to the left of '1' (back-quote, etc).  Obviously
> needs fixing though.

Thanks for that hint with <alt>-xzy ! Seems to be the same as 
with good old DOS boxes, right ? Why I did not try that ?

> > [3] Sometimes I could see a message like
> > "ioctl: LOOP_CLR_FD: No such device or address"
> > short time before the C180 crashed. Any idea ?
>
> That's a feature of the installer ;)  Happens on all archs
> and is harmless.

The problem is that one isn't sure if that could be the core 
reason or not, you know ...

I'm not used to use Debian Linux. It's the first time to use 
Debian so I couldn't have much experience in that ...

> > [1] Do real disabling of "dhcp-client" if it is set to "no"
> > during installation. (Those kernel message caused by
> > dhcp-client are boring; try it with open editor; great ;-)
>
> That is a problem with the dhcp-client package, again common
> to all archs.  The solution is "rm /etc/rc?.d/*dhcp-client". 
> It has been discussed on the debian-boot list, and hopefully
> someone will fix it. It has been suggested that we switch
> back to using pump.  There is a new version of dhcp-client in
> experimental, but it is much bigger, which causes problems
> for people that boot from floppies, at least.

I know the SuSE Linux approach of init. I have to get familiar 
with the Debian/Redhat way to do it ...


Now some philosophy:

On the other hand one has to fight on many different frontiers 
if one is using uncommon things :-)

Of course it's easier to go the known way. But why not to go 
the unknown way ? There are many things to discover ...


Thanks a lot ! There's hope :-) There's light on the end of the 
dark tunnel :-)


Reinhard.




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>>>>> "Reinhard" == Reinhard Gimbel <Reinhard.Gimbel@freenet.de> writes:

>> I have heard of a C160 with what could be similar problems.  The
>> C160 has internal diff scsi drives, and it seems that using that
>> interface causes disk corruption.  The only way he managed an
>> install was to disconnect all devices from the diff scsi interface,
>> and install to disks on the external scsi.  Is that something you
>> can try easily? Note, he had to physically disconnect the diff
>> disks, it wasn't sufficient to simply not use them.

The `external' SCSI Richard is referring to in my C160 is a Symbios
53C875 PCI board.

If you shop for one you have to be careful.  Most PC branded
controllers only support 5V PCI.  You need a controller with 3.3V PCI
support for the C180.  So I ended up buying a couple of Symbios
branded ones.  They support both voltages.

If you want to use the differential drives you got with the box, you
should buy the differential version of the controller.

And you need an external enclosure for the disks as it is close to
impossible to do internal cable routing in the box.  The 53C720 pins
go directly to the I/O bay edge connector.

Another alternative is to shop around for a dead C200/C240/C360 I/O
daughterboard which has an 875 instead of a 720.  That way you can use
the internal disk bay.  But you need Ultra Wide SCSI disks and not
differential ones in that case.

And finally - if you don't feel like spending money - keep bugging
Richard until he fixes the 710/720 problems ;)

-- 
Martin K. Petersen      Cereal Bowl Engineer, Linuxcare, Inc.
http://mkp.net/         SGI XFS, Linux/PA-RISC, GNOME




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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] The final patch for the keyboard problem
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To: Thomas Marteau <marteaut@esiee.fr>
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On Tue, Aug 07, 2001 at 09:27:41AM +0200, Thomas Marteau wrote:
> I must also add that this patch is not yet tested
> with Matthew Wilcox's version, according to his mail (
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-August/013302.html
> ). I will do it as soon as possible.

Don't worry about that; if you manage to fix the keyboard problems,
I'll adapt my patch.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] The final patch for the keyboard problem
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On Tue, Aug 07, 2001 at 01:14:19PM +0100, Richard Hirst wrote:
> Went back to the HP keyboard, and CapsLock hangs the machine there also.


I've fixed the lockup on CapsLock, using an analyser to monitor what happened
on the PS/2 cable:

(fw=firmware, kb=keyboard, li=linux)

B180, HP keyboard, this is what the firmware does on reset:

fw F5	disable scanning
kb FA	ack

fw F2	???
kb FA	ack
kb AB
kb 83

fw FF	reset
kb FA	ack
kb AA	power-on reset

fw F0	???
kb FA	ack

fw 02	???
kb FA	ack

fw F0	???
kb FA	ack

fw 00	???
kb FA	ack
kb 02

fw ED	set leds
kb FA	ack

fw 02	NumLock
kb FA	ack

fw F4	enable scanning
kb FA	ack

Now CapsLock pressed and released:

kb 58	keypress

fw ED	set leds
kb FA	ack

fw 06	CapsLock + NumLock
kb FA	ack

kb F0	keyrelease
kb 58

Now we boot Linux:

li ED	set leds
kb FA	ack

li 00	No LEDs
kb FA	ack

li F4	enable scanning
kb FA	ack

Now we press and release '1':

kb 16	keypress

kb F0	keyrelease
kb 16

Now we press CapsLock:

kb 58	keypress

li ED	set leds
li ED	set leds
kb FA	ack

System is hung.

The problem was that the driver retried the 'set leds' every 1ms, but the data rate
on the serial PS/2 cable is such that it takes at least 1ms for the command to reach
the keyboard, and a further 1ms for the ack to return.

I changed the driver to allow 5ms rather than 1ms, and it works now.  In fact, for
my keyboard, the time from command being written to ack being received is about
2.5ms.

Can't say I like the idea of mdelay(5) being called 3 times every time I press
CapsLock though.

Richard





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On Tue, Aug 07, 2001 at 01:14:19PM +0100, Richard Hirst wrote:
> On Tue, Aug 07, 2001 at 11:58:17AM +0100, Richard Hirst wrote:
> > Anyway, I'm about to try it on a couple of machines here; I'll let you
> > know how it goes.
> 
> HP US keyboard on B180.  Worked until I unplugged and replugged the
> keyboard.  Keyboard was dead after that, but machine still responded
> to pings.

Tried unplugging/replugging again; survived this time.  Keyboard
generates a scancode AA (reconnected), but the console says unrecognised
scancode 7f.

btw, I guess we should reinitialise the LED status on a replug.

Back to the compaq UK keyboard, CapsLock works also with the longer
mdelay() calls.  The CapsLock LED doesn't come on, but the others
do, so I'll assume faulty k/b for now.  Unplug/replug still results
in a dead keyboard (init=/bin/sh, so I can't tell if the machine is
still alive).

On the mdelay() calls, the PC driver would check for an ack every 1ms,
but would only resend the command every 1000ms.  Your code was resending
every 1ms.  Checking every 1ms and resending less frequently is better
than just checking and resending every 5ms.
  
Richard





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Matthew Wilcox wrote:
> 
> This is a summary and a design document for building an iotree in PA/Linux.
> Grant, Ryan, if I mis-remembered / misunderstood something, do shout.

Cool!

...
> In a related matter, the ABW will pick up serial ports (and other things)
> which aren't activated.  Grant said there was a PDC call to determine
> whether a device is inactive -- I'm not sure which one that is yet.

Yes. AFAIK, LASI sub-devices are listed by PDC. For Dino HPUX makes
a special hvers PDC call. Need to look at the HPUX code or Raven PDC ERS.

> 
> Here's my plan:
> 
>  * From setup_arch, call PDC to get a list of devices.  Put them in a
>    table (marked __init, will be freed later).

Why not start building a tree with "place holder" nodes directly?
Do we need the intermediate table because of memory issues?

ie build a "sparse" tree and have Native Bus walk fill in (or update
wrong) info for devices it finds.

>  * In the badly-named gsc_init, or perhaps in pcibios_init, start the
>    ABW at 0xFFF80000 -- this seems to be the defined location for the
>    central bus.

My long term goal is to be able to build a kernel w/o CONFIG_PCI defined.
And renaming gsc_init to native_bus_init() sounds like a good idea.

>  * Start creating the tree with devices that we find in the ABW.
>    Each device which is a bus adapter / converter will do an ABW for its
>    children, and add in any PDC-discovered devices in the table which are
>    its immediate children.  The add-in is done by copy, not by reference.
>  * At some indeterminate time after this, the table of PDC-reported drivers
>    gets freed along with all the other __init data & code.
> 
> We'll have to be careful with CPU `drivers' since they will have stale
> pointers which must be updated.  Perhaps this is where a ->remove method
> would come in handy; or perhaps we just magically make them cope with
> their ->probe function being called a second time on the same device
> (same HPA).

The latter sounds easier but more like a hack...maybe it's ok though.

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] more serial console problems on D310
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Xref: news.gmane.org gmane.linux.ports.parisc:11831

djweis@sjdjweis.com wrote:
> I grabbed the 20010704 kernel source and net booted my d310 with it
> combined with the ramdisk from the 0.9.2 install image. I start with the
> serial console on the serial connector labeled "serial console". Output
> only comes through there until the kernel starts, then I have to switch
> over to the other serial port on the machine to see the rest of the boot
> messages.

I look at the HW database and it seems the D310 has two LASI (core_adapter)
chips (and WAX, no PCI). I suspect the detection of serial ports misnumbers
them (ie parisc-linux finds them in the wrong order) or we only properly
handle one of the two LASI's.

>  They come quickly until the root filesystem is mounted. It looks
> like I lose interrupts after that because everything is written in blocks
> of 16 characters with long (15 second?) pauses in between blocks.

Probably not getting interrupts in the first place. The initial
console handling is done with PDC calls - ie polled IO.

> After
> getting this message:
> VFS: Mounted root (ext2 filesystem).
> serial console detected.  Disabling virtual terminals.
> 
> the cursor just tabs along the screen by itself without printing
> anything. 

> Any ideas? Why is the first serial port not being detected/used?

Can you post full console output? (or otherwise make it available)
Interested folks can then start guessing what might be the problem.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: C180: no real progress :-(
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Reinhard Gimbel wrote:
> Few weeks ago I posted some thoughts I had in this mailing list 
> because palinux-0.9.2 was crashing on the older box all the 
> time during installation.

I haven't seen any commits from rbrad yet.
I know he's still working on fixing the ccio driver bugs.

> 
> Some kernel messages led my in the false direction. I thought 
> DINO (h/w v2.1; or better the software glue of DINO) was the 
> root cause of "my" problems. This box had firmware v2.7.

please please please update the firmware on this box. See the parisc-linux
FAQ for details on how to upgrade firmware. You don't want to chase
data corruption problems due to the old dino. Upgrading the firmware
will prevent the scenario.  The box is useful but one can't use PCI
devices (except graphics) in it.

> Installation via network/NFS did not work because of problems; 
> With the older box i tried many things (100Mbps, 10Mbps, Hub, 
> cross-over cable) but no success ...

This should work. Make sure link lights on  the hub/switch and 
C180 are on. Shouldn't need a cross-over cable if you have a hub.
Othwerwise, review the palo parameters you are using.

> 
> After I got the replacement on Friday (DINO v3.1 [which should 
> be ok. according the kernel messages ...], firmware v5.1) the 
> problems are still present.
> 
> BTW: Grant, you are right ! But newer firmware seems not to 
> solve the problem ...

No. But it avoids some other ones.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Kirk Bresniker <kirkb@chrome.rose.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] more serial console problems on D310
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| I look at the HW database and it seems the D310 has two LASI (core_adapter)
| chips (and WAX, no PCI). I suspect the detection of serial ports misnumbers
| them (ie parisc-linux finds them in the wrong order) or we only properly
| handle one of the two LASI's.

It may seem like that in the HW database, but there is never more than one
LASI in a d-class system, the LASI is on the main system board, so it's always
there regardless of which processor asssembly gives the d-class its flavor,
and no processor board or add-in card ever contained a second LASI.

The serial port labeled console is attached to the LASI rs-232 unless an
access port card is plugged into the access port capable slot. If an 
access port card is present, then the RS-232 signals from it are routed
to the console connector instead.

Check the system to see if there is an AP card. If there is, then you 
might need to remove it. When I played with some d-classes very early on 
in the port, I had to take the AP card out.  The inside door of your 
d-class system should have a nice diagram showing you how to find the 
AP card. It's an HSC card with two small extra connectors and on the
bulkhead is an LED, a small switch, an serial connector and a tiny
modem connector.

KMB
--
+======================================================================+
|       Kirk Bresniker          (916) 748-2393                         |
|       8000 Foothills Blvd                                            |
|       Roseville, CA 95747-5731                                       |
|       kirkb@rose.hp.com                                              |




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Subject: Re: [parisc-linux] The final patch for the keyboard problem
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Xref: news.gmane.org gmane.linux.ports.parisc:11834

Richard Hirst wrote:
> I've fixed the lockup on CapsLock, using an analyser to monitor what happened
> on the PS/2 cable:

Cool!
reverse engineering is more fun when one has the right tools...

> I changed the driver to allow 5ms rather than 1ms, and it works now.
> In fact, for my keyboard, the time from command being written to ack
> being received is about 2.5ms.
>
> Can't say I like the idea of mdelay(5) being called 3 times every time I
> press CapsLock though.

Would sleep/wakeup be better than polling?
It seems the keyboard does generate interrupts.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] more serial console problems on D310
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Xref: news.gmane.org gmane.linux.ports.parisc:11835

Kirk Bresniker wrote:
> | I look at the HW database and it seems the D310 has two LASI (core_adapter)
> | chips (and WAX, no PCI). I suspect the detection of serial ports misnumbers
> | them (ie parisc-linux finds them in the wrong order) or we only properly
> | handle one of the two LASI's.
> 
> It may seem like that in the HW database, but there is never more than one
> LASI in a d-class system, the LASI is on the main system board, so it's
> always there regardless of which processor asssembly gives the d-class its
> flavor, and no processor board or add-in card ever contained a second LASI.

Kirk,
You are right. I misread the ioscan output.

Here are the HW database contents in a more readable form:

type	driver		HWpath	Description
------	-------------	------	--------------------------
ba	core_adapter	16	Core I/O Adapter
ext_bus	CentIf		16/0	Built-in Parallel Interface
tty	asio0		16/4	Built-in RS-232C
ext_bus	c720		16/5	Built-in SCSI
...
lan	lan2		16/6	Built-in LAN
ps2	ps2		16/7	Built-in Keyboard/Mouse
ba	core_adapter	20	Core I/O Adapter
tty	asio0		20/2	Built-in RS-232C
ba	eisa_adapter	20/5	EISA Bus Adapter
lan	btlan0		20/5/8	EISA card INP0500
...

I had assumed "core_adapter" meant LASI.
The second "Core I/O Adapter" at "20" must be WAX.

> The serial port labeled console is attached to the LASI rs-232 unless an
> access port card is plugged into the access port capable slot.
...

Ok. We still have an ordering issue then between WAX/LASI and how
tty's are numbered/discovered. That's in addition to the problem
of interrupts not getting delivered for the serial port on WAX at "20/2".

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Dave Weis <djweis@sjdjweis.com>
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Subject: Re: [parisc-linux] more serial console problems on D310
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On Thu, 9 Aug 2001, Kirk Bresniker wrote:

> Check the system to see if there is an AP card. If there is, then you 
> might need to remove it. When I played with some d-classes very early on 
> in the port, I had to take the AP card out.  The inside door of your 
> d-class system should have a nice diagram showing you how to find the 
> AP card. It's an HSC card with two small extra connectors and on the
> bulkhead is an LED, a small switch, an serial connector and a tiny
> modem connector.

Yes, it does have one of those cards. I'll yank it tonite and see what
happens. It also has an 8 port serial card, would that make a
difference? I'll yank it also, anyway.

thanks
dave

-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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From: Gururaj Ananthateerta <gururaj@cup.hp.com>
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Subject: [parisc-linux] Installation
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Hello,

I want to install linux on B180L. I did visit parisc-linux web site.
I am confused which ISO image to pick. There are couple of them
like *serial  and *sti.
Please anyone explain me which one to pick and what they mean.

Thanks
Guru





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Hello Guru
> 
> I want to install linux on B180L. I did visit parisc-linux web site.
> I am confused which ISO image to pick. There are couple of them
> like *serial  and *sti.
> Please anyone explain me which one to pick and what they mean.

Since the release of PA/Linux v0.9.2, you do not need to worry about
that! You take the smallest if you have a good internet connection that
will help you to transfer the most recent packages or the big one with
all included!

Regards, Thomas
ESIEE Team




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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] fix for ccio cpio cdrom -> disk HPMC
Date: Thu, 9 Aug 2001 22:51:55 -0600
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Hello parisc-linux hackers,

I think I have finally located and fixed the bug that has been haunting 
the ccio driver.  This is the infamous cpio cdrom -> disk bug that I could
reliably HPMC my C200+ with.

The fix is simple, and I want to thank both Richard Hirst and Grant
Grundler for taking the time at OLS to explain how the SCSI layer was
interacting with the ccio driver.  Understanding this gave me the clue I
needed to find/solve this long outstanding bug.


The problem is in the coalescing of the sg chunks.  The ccio (and SBA)
drivers attempt to coalesce the sg chunks via 2 methods:

  1. Merging virtually contiguous addresses into a single, larger address.
  2. Merging non-virtually contiguous addresses into a single, larger
     address iff the entries start/end on a page boundary.

These two constraints are well documented in the
Documentation/DMA-mapping.txt, but unfortunately the second case does not
hold true for the ccio driver as I will try to explain after the short
patch to remove the second case:


--- ccio-dma.c	2001/07/14 21:17:01	1.33
+++ ccio-dma.c	2001/08/10 03:24:38
@@ -992,18 +992,7 @@ ccio_coalesce_chunks(struct ioc *ioc, st
 
 			vcontig_sg = startsg;
 			vcontig_len = startsg->length;
-
-			/*
-			** 3) do the entries end/start on page boundaries?
-			**    Don't update vcontig_end until we've checked.
-			*/
-			if (DMA_CONTIG(vcontig_end, startsg->address)) {
-				vcontig_end = vcontig_len + (unsigned long)startsg->address;
-				dma_len += vcontig_len;
-				continue;
-			} else {
-				break;
-			}
+			break;
 		}
 
 		/*

The reason the second case does not hold true for the U2/Uturn chip because
because the IO TLB is direct mapped on a 32k block boundary.  If the
U2/UTurn chip was mapped on a 4k boundary (like Astro and IKE) then the
second case would work fine.  [Note: I could have changed the DMA_CONTIG
macro to align on a 32k block boundary instead of a 4k block bound and
probably still fixed the problem, but I'm currently testing a new
coalescing design Richard, Grant and I discussed at OLS, so I opted for
simplicity :)]


Now for the pretty ASCII art showing why the second case is broken
for the ccio driver:

Lets assume the SCSI layer passes the 1st, 2nd, and 4th page of a 32k block
to the ccio driver to be coalesced.

      0   1   2   3   4   5   6   7
    +---+---+---+---+---+---+---+---+
    | X | X |   | X |   |   |   |   |
    +---+---+---+---+---+---+---+---+


The ccio_coalesc_chunks function would return a single DMA stream with the
translated address of block 0 and a length of 3 pages.

The ccio_fill_pdir function would then mark the correct pages of the 32k
block valid in the I/O TLB.

Next the SCSI driver will try to write the data to the invalid I/O TLB
entry at block 2.  At this point I believe the machine will HPMC because 
of the invalid I/O TLB entry in the U2/UTurn chip.  Which verifies the PIM
codes I have been seeing on the C200+.

With the above patch applied to my local TOB tree, I have successfully
cpio'ed a cdrom to disk several time without causing the HPMC.  So I am
going to commit the patch to the ccio driver.  We can back it out later
if someone has concerns or finds my analysis invalid :)

As for my long shot in the dark as to why it was very reproducible with
a cdrom -> disk copy and not the disk -> disk copy is that the SCSI driver
passed 2k block in the sg list while the disk -> disk copy uses 1k block.
Therefore the 2k blocks increased the likely-hood of catching the second
case and causing the HPMC.


Also I would like to fix the documentation in
Documentation/DMA-mapping.txt since it is not quite accurate and threw
me off for quite a while.  I would be happy to submit a small patch to
clarify the documentation, but I'm not sure of the proper way to submit
a patch to architecture independent code/documentation.

  1. Submit the patch directly to the document authors and have them
     review/accept/reject the patch?

  2. Commit the patch to the parisc-linux tree and handle it during 
     the upstream merge?


The following section of text is the misleading portion of the document.

> The implementation is free to merge several consecutive sglist entries
> into one (e.g. if DMA mapping is done with PAGE_SIZE granularity, any
                                             ^^^^^^^^^
> consecutive sglist entries can be merged into one provided the first one
> ends and the second one starts on a page boundary - in fact this is a huge
> advantage for cards which either cannot do scatter-gather or have very
> limited number of scatter-gather entries) and returns the actual number
> of sg entries it mapped them to.


If someone else with a U2/Uturn chip wants to beat on the ccio driver for
a while with this patch and verify the the HPMC is gone for them I would
greatly appreciate it.

Thanks,

- Ryan




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From: Richard Hirst <rhirst@linuxcare.com>
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On Thu, Aug 09, 2001 at 05:35:48PM -0700, Gururaj Ananthateerta wrote:
> I have a B180L system, I want to install linux on it. I visited
> parisc-linux
> site. I am confused which ISO image to pick. There are couple of them
> like *serial  and *sti.
> Please anyone explain me which one to pick and wht they mean.

You posted to the ia64 list, not the parisc one, but anyway...

*serial refers to an ISO for use with a serial console, where you would
install and manage the system via a serial cable link to some other system
(e.g. minicom running on a Linux PC).

*sti refers to Standard Text Interface, which means using the keyboard
and monitor interface to the system.

The '32' and '64' in the ISO names refers to 32 and 64 bit CPUs; yours
is 32 bit.

Assuming your system is currently configured for sti console, you
should be able to force it to use serial console simply by unpluging
the keyboard and cycling power.

When we released the 0.9 ISO we had seperate ISOs for serial and sti
installs on 32 bit machines and a further serial ISO for 64 bit machines.
This is referred to as 0.9.0 now.

Next we released a 0.9.1 ISO, but you should ignore that, as it had
various problems.

The latest release is a 0.9.2 ISO, where we have a single ISO that
works for serial and sti installs on 32 bit machines and for serial
installs on 64 bit machines.

We have two versions of 0.9.2, "Network Install ISO", which is a CD
you can install from, but which has just the base packages on it.  Once
you've installed, you'll need to grab other packages from the network.
0.9.2 "CD Install ISO" is the same, but includes various other packages
that we considered useful.  Even if you install this CD you'll
probably want to upgrade from the network anyway.

Now, none of these are perfect.  If you are using a serial console
then either should work fine for you, and you should use the 0.9.2
one as it is more up-to-date.

If you are using an sti console, then I think the 0.9 ISO will work,
although screen redrawing is poor in the installer.  If you use the
0.9.2 ISO with an sti console, you might find that your keyboard is
dead and you are unable to complete the install.  Unplugging and
replugging the keyboard (while the installer is running) may help,
as might trying some other model of keyboard.

The good news is that the keyboard lockup problems are probably
solved, although the code isn't quite ready for committing.  I guess
we will release a new ISO with 2.4.7 kernel and working keyboard sometime
soon, although I am about to go on holiday for two weeks so it probably
wont happen until I'm back.

Finally, I see you are inside HP; I don't know whether the internal
mirrors have 0.9.2 or not, but they are available on
<http://www.parisc-linux.org/release-0.9/index.html>

Richard





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From: "Pedot, Wolfgang" <wpedot@harris.com>
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Subject: [parisc-linux] Using EISA-Slot in 715/75
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Hi,

Is there any hope that the EISA-Slot in my 715/75 will be usable? I noticed that
the expander (WAX-EISA) is supported and detected at startup but I can not load
any drivers for ISA-Cards (unresolved Symbols outsb, outsw.....). Since EISA is
compatible to ISA this should be possible...

greetings
Wolfgang




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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
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Subject: [parisc-linux] Is a C200+ currently supported?
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I'm tempted to buy a HP C200+ (PA8200/512 Mb/9 Gb/Visualize fx-4).

>From the website, it would seem that it is, except for the graphics-card
(Visualize FX-4) for which there is no framebuffer support.

Does this mean I only get the console (80x25) or is there also X?

In general, does such a machine run linux acceptable (with 512 Mb memory / =
9 Gb disk) ?

All (off-list) experiences are very welcome!

Thanks,
Jurriaan





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Using EISA-Slot in 715/75
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On Fri, Aug 10, 2001 at 04:15:12AM -0400, Pedot, Wolfgang wrote:
> Hi,
> 
> Is there any hope that the EISA-Slot in my 715/75 will be usable? I noticed that
> the expander (WAX-EISA) is supported and detected at startup but I can not load
> any drivers for ISA-Cards (unresolved Symbols outsb, outsw.....). Since EISA is
> compatible to ISA this should be possible...

Not yet working, sorry.

Richard





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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Is a C200+ currently supported?
Date: Fri, 10 Aug 2001 08:54:49 -0600
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To: Jurriaan Kalkman <Jurriaan.Kalkman@zrt.nl>
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Jurriaan,

I use a C200+ as my development machine for the parisc-linux port. So
yes, I try to keep the C200+ supported.  Be forwarned that I am newbie
kernel hacker, and sometimes it takes me a long time to find/fix the 
problems on these machines (ie. the ccio cpio cdrom -> disk HPMC).  I
have only been using the serial console interface from the C200+ so I'm
not sure how well (or if the STI works on this machine).  Now that I 
found/fixed the HPMC I was looking for, I will see if I can give it a 
whirl with the 0.9.2 installer tonight.

The machine will run fine with 512 MB memory / 9 GB disk.  I started
using the C200 with 256 MB memory / 4GB disk and it worked great for
what I was doing.

Hope this helps!

- Ryan

On Fri, Aug 10, 2001 at 10:10:31AM +0200, Jurriaan Kalkman wrote:
> I'm tempted to buy a HP C200+ (PA8200/512 Mb/9 Gb/Visualize fx-4).
> 
> From the website, it would seem that it is, except for the graphics-card
> (Visualize FX-4) for which there is no framebuffer support.
> 
> Does this mean I only get the console (80x25) or is there also X?
> 
> In general, does such a machine run linux acceptable (with 512 Mb memory / 9 Gb disk) ?
> 
> All (off-list) experiences are very welcome!
> 
> Thanks,
> Jurriaan
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 

-- 




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ldd doesn't work under a 2.4.7 kernel; Willy is working on the proper
fix, but I thought it useful to post my work-around, as I'm about to take
two weeks holiday.

Richard


Index: fs/binfmt_elf.c
===================================================================
RCS file: /home/cvs/parisc/linux/fs/binfmt_elf.c,v
retrieving revision 1.20
diff -u -r1.20 binfmt_elf.c
--- binfmt_elf.c	2001/08/01 15:26:52	1.20
+++ binfmt_elf.c	2001/08/10 16:41:56
@@ -9,6 +9,8 @@
  * Copyright 1993, 1994: Eric Youngdale (ericy@cais.com).
  */
 
+#define RGH_FIX
+
 #include <linux/module.h>
 
 #include <linux/fs.h>
@@ -153,6 +155,10 @@
 	 */
 	ARCH_DLINFO;
 #endif
+#ifdef RGH_FIX
+	if (exec)
+#endif
+	{
 	NEW_AUX_ENT(AT_PHDR, load_addr + exec->e_phoff);
 	NEW_AUX_ENT(AT_PHENT, sizeof (struct elf_phdr));
 	NEW_AUX_ENT(AT_PHNUM, exec->e_phnum);
@@ -163,6 +169,7 @@
 	NEW_AUX_ENT(AT_EUID, current->euid);
 	NEW_AUX_ENT(AT_GID, current->gid);
 	NEW_AUX_ENT(AT_EGID, current->egid);
+	}
 	NEW_AUX_ENT(AT_HWCAP, ELF_HWCAP);
 	NEW_AUX_ENT(AT_PAGESZ, ELF_EXEC_PAGESIZE);
 	NEW_AUX_ENT(AT_CLKTCK, CLOCKS_PER_SEC);
@@ -714,8 +721,14 @@
 
 	compute_creds(bprm);
 	current->flags &= ~PF_FORKNOEXEC;
+#ifdef RGH_FIX
+	create_elf_tables(bprm, (interpreter_type == INTERPRETER_ELF ? &elf_ex : NULL),
+			(interpreter_type == INTERPRETER_AOUT),
+			load_addr, interp_load_addr);
+#else
 	create_elf_tables(bprm, &elf_ex, (interpreter_type == INTERPRETER_AOUT),
 			load_addr, interp_load_addr);
+#endif
 	/* N.B. passed_fileno might not be initialized? */
 	if (interpreter_type == INTERPRETER_AOUT)
 		current->mm->arg_start += strlen(passed_fileno) + 1;




From - Thu Nov 08 21:18:46 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] fix for ccio cpio cdrom -> disk HPMC
Date: Fri, 10 Aug 2001 10:55:56 -0600
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In-Reply-To: Message from rbrad@beavis.ybsoft.com (Ryan Bradetich) 
   of "Thu, 09 Aug 2001 22:51:55 MDT." <20010809225155.A21997@beavis.ybsoft.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:11846

Ryan Bradetich wrote:
> Hello parisc-linux hackers,
> 
> I think I have finally located and fixed the bug that has been haunting 
> the ccio driver.  This is the infamous cpio cdrom -> disk bug that I could
> reliably HPMC my C200+ with.

Excellent! That's so cool!

> The fix is simple, and I want to thank both Richard Hirst and Grant
> Grundler for taking the time at OLS to explain how the SCSI layer was
> interacting with the ccio driver.  Understanding this gave me the clue I
> needed to find/solve this long outstanding bug.

welcome...no manual labor involved like getting you coffee or something. ;^)

...
> The reason the second case does not hold true for the U2/Uturn chip because
> because the IO TLB is direct mapped on a 32k block boundary.

Use of "direct mapped" doesn't seem right here.
I *think* it means a given IOVA will always map to the same IO TLB entry.
Many IOVA's can map to one IO TLB entry. Each IOVA has a corresponding
entry in the IO PDIR. (IOVA == I/O Virtual Address)
 
I'm wondering why U2 has 8 IO Pdir entries per IO TLB entry.
If the 8 entries can only map one physically contiguous chunk
of memory, does it make sense to have 8 entries?

Do the 8 entries have to have the same "Coherency Index" values?
(note: to date, all buffer addresses are kernel virtual addresses.)

...
> Next the SCSI driver will try to write the data to the invalid I/O TLB
> entry at block 2.  At this point I believe the machine will HPMC because 
> of the invalid I/O TLB entry in the U2/UTurn chip.  Which verifies the PIM
> codes I have been seeing on the C200+.

An invalid IO TLB entry with a valid IO PDIR entry behind it suggests
we aren't managing the IO TLB right or the ccio driver wasn't mapping the
second "chunk" correctly.

Maybe we were asking the IO TLB to do something which U2 doesn't support.
Obviously I don't understand U2 IO TLB behavior in great detail or I would
have written the code right before Ryan picked it up.
Can anyone explain this U2/Uturn IO TLB behavior better?


> Also I would like to fix the documentation in
> Documentation/DMA-mapping.txt since it is not quite accurate and threw
> me off for quite a while.
...
>   1. Submit the patch directly to the document authors and have them
>      review/accept/reject the patch?

Generally I prefer this since we "automatically" pull upstream changes
with every merge. IMHO, commit only non-arch/parisc changes when
we need a bug fix or feature *now* (eg serial console, 100BT, etc).

> The following section of text is the misleading portion of the document.
> 
> > The implementation is free to merge several consecutive sglist entries
> > into one (e.g. if DMA mapping is done with PAGE_SIZE granularity, any
>                                              ^^^^^^^^^

Note this starts with "e.g.". It's just an example and it should be simple.
Think about keeping the example simple when you submit your patch.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] The final patch for the keyboard problem
Date: Fri, 10 Aug 2001 18:23:04 +0100
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To: Thomas Marteau <marteaut@esiee.fr>
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On Tue, Aug 07, 2001 at 09:27:41AM +0200, Thomas Marteau wrote:
> Hi all,
> 
> 	It is my last patch solving the keyboard problem on BXXX and CXXX. It

With this patch applied my B180 hangs in init_keyb(), if there is no
keyboard attached.  I was trying to boot a 2.4.7 kernel based installer.

Richard.





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From: Gururaj Ananthateerta <gururaj@cup.hp.com>
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Subject: [parisc-linux] Re: [Linux-ia64] Installation.
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Xref: news.gmane.org gmane.linux.ports.parisc:11848

My apologies, I realised that I have posted my question on ia-64 list, but it
was too late.

Thanks for the comphrensive description.
I have one more question.
I have an external SCSI CDROM. I guess I am not able to boot through this.
Do you think this should be a problem.

Thanks
Guru


Richard Hirst wrote:

> On Thu, Aug 09, 2001 at 05:35:48PM -0700, Gururaj Ananthateerta wrote:
> > I have a B180L system, I want to install linux on it. I visited
> > parisc-linux
> > site. I am confused which ISO image to pick. There are couple of them
> > like *serial  and *sti.
> > Please anyone explain me which one to pick and wht they mean.
>
> You posted to the ia64 list, not the parisc one, but anyway...
>
> *serial refers to an ISO for use with a serial console, where you would
> install and manage the system via a serial cable link to some other system
> (e.g. minicom running on a Linux PC).
>
> *sti refers to Standard Text Interface, which means using the keyboard
> and monitor interface to the system.
>
> The '32' and '64' in the ISO names refers to 32 and 64 bit CPUs; yours
> is 32 bit.
>
> Assuming your system is currently configured for sti console, you
> should be able to force it to use serial console simply by unpluging
> the keyboard and cycling power.
>
> When we released the 0.9 ISO we had seperate ISOs for serial and sti
> installs on 32 bit machines and a further serial ISO for 64 bit machines.
> This is referred to as 0.9.0 now.
>
> Next we released a 0.9.1 ISO, but you should ignore that, as it had
> various problems.
>
> The latest release is a 0.9.2 ISO, where we have a single ISO that
> works for serial and sti installs on 32 bit machines and for serial
> installs on 64 bit machines.
>
> We have two versions of 0.9.2, "Network Install ISO", which is a CD
> you can install from, but which has just the base packages on it.  Once
> you've installed, you'll need to grab other packages from the network.
> 0.9.2 "CD Install ISO" is the same, but includes various other packages
> that we considered useful.  Even if you install this CD you'll
> probably want to upgrade from the network anyway.
>
> Now, none of these are perfect.  If you are using a serial console
> then either should work fine for you, and you should use the 0.9.2
> one as it is more up-to-date.
>
> If you are using an sti console, then I think the 0.9 ISO will work,
> although screen redrawing is poor in the installer.  If you use the
> 0.9.2 ISO with an sti console, you might find that your keyboard is
> dead and you are unable to complete the install.  Unplugging and
> replugging the keyboard (while the installer is running) may help,
> as might trying some other model of keyboard.
>
> The good news is that the keyboard lockup problems are probably
> solved, although the code isn't quite ready for committing.  I guess
> we will release a new ISO with 2.4.7 kernel and working keyboard sometime
> soon, although I am about to go on holiday for two weeks so it probably
> wont happen until I'm back.
>
> Finally, I see you are inside HP; I don't know whether the internal
> mirrors have 0.9.2 or not, but they are available on
> <http://www.parisc-linux.org/release-0.9/index.html>
>
> Richard





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On Fri, Aug 10, 2001 at 10:57:43AM -0700, Gururaj Ananthateerta wrote:
> My apologies, I realised that I have posted my question on ia-64 list, but it
> was too late.
> 
> Thanks for the comphrensive description.
> I have one more question.
> I have an external SCSI CDROM. I guess I am not able to boot through this.
> Do you think this should be a problem.

I would expect you to be able to boot from it.  Does it show up if
you do a SEA search?  Alternatively, you can do a network boot to
start the installation, then read everything else from the CD or
the network, as described in the README on the CD.

Richard





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From: Xavier Debacker <debackex@esiee.fr>
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Hi all!                                                               
                                                                      
Just a reminder.                                                      
                                                                      
ESIEE website can be found at                                         
                                                                      
     http://mkhppa02.esiee.fr:8000                                    
                                                                      
Regards,                                                              
                                                                      
Xavier,                                                               
ESIEE Team.                                                           




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From: Dave Weis <djweis@sjdjweis.com>
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On Thu, 9 Aug 2001, Grant Grundler wrote:

> Can you post full console output? (or otherwise make it available)
> Interested folks can then start guessing what might be the problem.

After pulling the AP card and the 8 port serial card, I have a debian
install going. I did use the serial port labeled console on the back of
the machine. I'll report back if it finishes.

dave

-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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2.4's patchlevel is getting closer to double digits.  Does this mean
upgrades are getting safer?  =)

Or less facetiously, is another CVS merge planned or are there problems
in this release as with 2.4.7?  (Don't follow l-k and am just curious.)

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




From - Thu Nov 08 21:18:47 2018
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From: Timothy Ball <timball@tux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 712/60 screwy console stuff
Date: Sat, 11 Aug 2001 16:04:25 -0400
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I got a 712/60 and I'm connecting to it via serial console and when I
power it up I get this:

--snip--snip--snip--
0x04.1095
0x04.1096
0x04.1090
0x04.108D
0x04.10D4
0x04.10D9
0x04.4080
0x04.4081
0x04.4082
0x04.8300
0x04.8322
0x04.8324
--snip--snip--snip--

and on and on and on.

Anyone know what this means?

--timball

-- 
	GPG key available on pgpkeys.mit.edu
pub  1024R/CFF85605 1999-06-10 Timothy L. Ball <timball@sheergenius.com>
     Key fingerprint = 8A 8E 64 D6 21 C0 90 29  9F D6 1E DC F8 18 CB CD




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From: Santiago Garcia Mantinan <manty@manty.net>
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Subject: [parisc-linux] parisc machine system crash
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--bp/iNruPH9dso1Pn
Content-Type: text/plain; charset=us-ascii
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Hi!

I'm one of the Debian developers and I've been trying to get openh323
package to work on the parisc architecture lately, I nearly got it to run,
but I still have some problems wich I haven't been able to trace (if anyone
wants to try and help me with this, he can gatter my latest packages from
debian unstable). The thing is that while trying to trace down this problems
I have crashed paer, a debian's parisc machine.

The proccess that I did run was to strace simph323, an example of the
openh323 library. I had libpt1 from pwlib_1.1.34-2 installed on the machine
and had liboh323v1 and simph323 from openh323_1.5.6-2 installed on my home
directory, then whenever I run...

LD_LIBRARY_PATH=/home/manty/p/usr/lib strace -ff -o salida
usr/bin/simph323 -n -l -s loopback

paer would crash, I think this also happens with strace -f but not with a
plain strace.

I cannot do much tests, as I don't have a local machine that I can reset and
all that, so, it would be good if someone could test this out. The packages
have been installed on Debian right now, but will be in the mirrors soon if
they are not yet there.

I'm attaching a dump of the stack of paer when it crashed hoping that it
will give you enough info to help with this. Paer is running kernel
2.4.0-pa43 without SMP and runs libc6 2.2.3-9.

Well, I don't know what else I could say, but if you find that I'm missing
something, don't hesitate to ask.

Thanks in advance.

Regards...
-- 
Manty/BestiaTester -> http://manty.net

--bp/iNruPH9dso1Pn
Content-Type: application/octet-stream
Content-Disposition: attachment; filename="paer_stack.dump.gz"
Content-Transfer-Encoding: base64

H4sICKMbdDsCA3BhZXJfc3RhY2suZHVtcACtWUuT2zYMvutX6NgePEMSfIA7k0OaNOlOH5vs
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v335173A6F2H86H6H7jjvtqNIgAA

--bp/iNruPH9dso1Pn--




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 712/60 screwy console stuff
Date: Sun, 12 Aug 2001 12:28:30 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:11855

Timothy Ball wrote:
> I got a 712/60 and I'm connecting to it via serial console and when I
> power it up I get this:
> 
> --snip--snip--snip--
> 0x04.1095
> 0x04.1096
> 0x04.1090
> 0x04.108D

Those are diagnostic messages from the PDC telling what's going on.
Useful for when the machine *stops* working and won't get to a
"BOOT_ADMIN" prompt. I'm doubt the magic decoder ring for those
has been published though...

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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xMach will soon be talking the PA-Mach port from Utah and merging it in to
our source tree, but we are in need of a new PA-RISC toolchain. Is the
PA-Linux team now the maintainers of it? If so could someone give a little
less linux oriented instructions for building the tool chain?







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I know it's possible to do this using the fb. But I don't know how to
answer all the questions asked for by xf86config. (specifically about
the video card) 

Does anyone have this working and can just send me a working X86Config-4
File? I have a A2094A monitor, it's fixed frequency 1280x1024 72Hz, so I
hope it can be made to work... 

--timball

-- 
	GPG key available on pgpkeys.mit.edu
pub  1024R/CFF85605 1999-06-10 Timothy L. Ball <timball@sheergenius.com>
     Key fingerprint = 8A 8E 64 D6 21 C0 90 29  9F D6 1E DC F8 18 CB CD




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From: Nicholas Leippe <nick@byu.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Can't boot 9.2 iso on B132L
Date: Sun, 12 Aug 2001 19:01:03 -0700
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I've tried both graphical and serial console and get the same thing.
I also burned a second disk with the iso since the first couldn't be
read on my x86 box.  The second disk mounted just fine on my x86 box,
so I assume that it at least is good, though it gives the same error.

Main Menu: Enter command > sea
 
Searching for potential boot device(s)...
This may take several minutes.
 
To discontinue search, press any key (termination may not be immediate).
 
 
   Path Number        Device Path              Device Type
   -----------        -----------------        -----------
   P0                 FWSCSI.6.0               SEAGATE ST34572WD
   P1                 FWSCSI.0.0               SGI     QUANTUM XP32150W
   P2                 SESCSI.5.0               TOSHIBA CD-ROM XM-5301TA


Main Menu: Enter command > bo P2
Interact with IPL (Y, N, Q)?> n
 
Booting...
Failed to initialize.
 
ENTRY_INIT
Status = -10
 
FFFFFFF6 00000001 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000 454E4841 00000005 00000000 454E4846
00000000 00000000 00000000 00000000 00000002 00000005 00000020 00000000
 
Failed to initialize.



Any suggestions?

Nick

-- 
Nobody will ever need more than 640 kB RAM.
                 -- Bill Gates, 1983
Windows 98 requires 16 MB RAM.
                 -- Bill Gates, 1999
Nobody will ever need Windows 98.
                 -- logical conclusion




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Hi,

i have some problems booting a 715/80. This machine has an svga-video
output. When i switch the power on, the monitor does'nt display anything.
The lights of the keyboard is blinking once, and then there is nothing else.
Also pressing ESC during booting has no results.
Any hints for an newbie on PA-RISC?

Regards,
	Christian

-- 
http://oldenburg.linux.de




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From: Helge Deller <helge.deller@sap.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems on booting 715/80
Date: Mon, 13 Aug 2001 13:05:43 +0200
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On Monday 13 August 2001 14:06, Christian Weerts wrote:
> Hi,
>
> i have some problems booting a 715/80. This machine has an svga-video
> output. When i switch the power on, the monitor does'nt display anything.
> The lights of the keyboard is blinking once, and then there is nothing
> else. Also pressing ESC during booting has no results.
> Any hints for an newbie on PA-RISC?
>
> Regards,
> 	Christian

Hi Christian,

you could try to press the TAB-key directly after switching on the computer.
This should bring you to a cycle-through-all-video-modes mode and let you 
configure the correct monitor for your system.

Greetings,
Helge




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Subject: Re: [parisc-linux] Problems on booting 715/80
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* Helge Deller <helge.deller@sap.com> [010813 11:05]:
> On Monday 13 August 2001 14:06, Christian Weerts wrote:
> > Hi,
> >
> > i have some problems booting a 715/80. This machine has an svga-video
> > output. When i switch the power on, the monitor does'nt display anything.
> > The lights of the keyboard is blinking once, and then there is nothing
> > else. Also pressing ESC during booting has no results.
> > Any hints for an newbie on PA-RISC?
> >
> > Regards,
> > 	Christian
> 
> Hi Christian,
> 
> you could try to press the TAB-key directly after switching on the computer.
> This should bring you to a cycle-through-all-video-modes mode and let you 
> configure the correct monitor for your system.
> 
> Greetings,
> Helge
> 
That's it! Thank's Helge.

Gruss,
	Christian

-- 
http://oldenburg.linux.de




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Subject: [parisc-linux] Downloading kernel source
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Hi,

is there a place to download the more or less current kernel source
(as tarball)? A few weeks ago I was trying to get it via CVS, but
that took hours, and I finally realized that I got the wrong one...
I wanted to give it a new try with JFS...

Greetings,
	Peter.





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weilbach@uni-sw.gwdg.de (Peter Weilbacher) writes:

> is there a place to download the more or less current kernel source
> (as tarball)? A few weeks ago I was trying to get it via CVS, but
> that took hours, and I finally realized that I got the wrong one...
> I wanted to give it a new try with JFS...

I'm working on kernel-image packages for upload to the Debian mirrors right
now.  One of the side-effects is that the Debian source package will contain
a mostly-current tarball that is a snapshot of the code from CVS.  

Until I get this done, I'm not sure what other options exist.

Bdale




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Hi Peter,                                                             
                                                                      
          When I need the archive of hppa-linux, I go there:          
ftp://puffin.external.hp.com/pub/parisc/cvs/                          
                                                                      
It is updated when you have a new extraversion, if I am right         
                                                                      
Hoping that it will be useful, Thomas                                 
ESIEE Team                                                            
                                                                      




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Hi Richard,                                                           
                                                                      
            Thanks for the feedback. I think that I will work on it   
tomorrow in order to give a version that do not hang with the leds and
take care of the presence of the device. I think that the fact that   
the system is hanged is due to my "while"s I planned to remove them   
too...                                                                
                                                                      
Thanks again, Thomas                                                  
ESIEE Team                                                            




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Hi,

is there anyone who has a running 715/80? I want to build a kernel for this
machine discribed in the nfsroot howto from Martin Petersen, but i don't
have HP-UX anywhere.
If i had a kernel perhaps i could boot the machine over LAN.

Gruss,
	Christian

-- 
http://oldenburg.linux.de




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Subject: [parisc-linux] list of supported machine types
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I've been having a chat with Martin Schulze about the Debian ports page for
hppa, and he brings up a good point.  There really isn't a good page right now
showing which machines are known to work with the latest CD image and which
are not.  And for those that don't work with the CD installer, which ones can
be made to work with a network install and which really just won't work at all?

  From my own experience, it would be very helpful to know which systems
  are supported and how.  The hwdb @parisc-linux is not very helpful.  They
  list systems and their owners.  Does it run on 720?  735?  715/33 and 715/50?
  Ok, 715/50 I've seen on the list, but not the others, though, they are listed.
  I have a couple of HP systems flying around here, *counting* 9, different
  models, which one will do and which won't?

The closest thing is http://www.parisc-linux.org/release-0.9/systems.html, but
it isn't clear whether that list is still correct for 0.9.2?  

Bdale




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To: Bdale Garbee <bdale@gag.com>
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Hi Bdale,                                                             
                                                                      
              It is just a reminder. In our website, you can see which
hardware will work and with which version. Perhaps, it needs some     
updates but I try to keep it up to date with the info of the mailing  
list. Perhaps, it will be an easier job to create a hwdb mailing list 
and some very kind people could send us a quick mail saying does work 
with XXX version or X.X.X linux kernel version...                     
                                                                      
For info, our website is currently: http://mkhppa02.esiee.fr:8000/    
On September, http://www.esiee.fr/puffin should work again.           
                                                                      
The list lives at http://mkhppa02.esiee.fr:8000/list.html             
                                                                      
Regards, Thomas.                                                      
ESIEE Team                                                            
                                                                      




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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] list of supported machine types
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>   I have a couple of HP systems flying around here, *counting* 9, different
>   models, which one will do and which won't?
> 
> The closest thing is http://www.parisc-linux.org/release-0.9/systems.html, but
> it isn't clear whether that list is still correct for 0.9.2?  
> 
> Bdale
>

Bdale,

A very good point. We have a cluster of 30x 712/50's running.
Although we have taken some unorthodox steps, like running ypbind
in debug mode so it doesn't crash, voodoo magic and x-compiled MPICH.

We also have a few 712/33's running, but we mostly gutted them for
parts. I'll see if I can rebuild one this week and test on it.

We have a single 712/60 that Byron Sonne gave us (Hi Bryon!) and
it ran without any problem. The 712/60 is happily living as Node23 
right now :)

Should we attempt to track usable .config's for a given machine type/setup?
Navigating the kernel config on the 712/50's is a bit like a minefield...
you enable the wrong thing and boom!

Cheers,
Carlos.

 




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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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[snip]
> We also have a few 712/33's running, but we mostly gutted them for
[snip] 
> Navigating the kernel config on the 712/50's is a bit like a minefield...
> 
> Cheers,
> Carlos.
>

My apologies, 715/33 and 715/50.

Cheers,
Carlos. 




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From: "Jaime Ash" <jaimeash@home.com>
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>  -----Original Message-----
> From: 	Jaime Ash [mailto:jaimeash@home.com] 
> Sent:	Sunday, August 12, 2001 3:10 PM
> To:	parisc-linux-announce@lists.parisc-linux.org
> Subject:	Creating the installation CD
> 
> I am in the process of trying to upgrade my PA-Linux machine (model HP
> 715) from version 0.6 to version 0.9.2, and also trying to install version
> 0.9.2 on an HP 735.
> 
> I have already extracted the file named "palinux-0.9.2.iso" from the
> downloaded file, but I do not know how to proceed from there to create the
> installation CD.  (Note that for version 0.6 I had used an installation CD
> that I got from Grant Grundler, so I never learned how he created the CD,
> and now he is on LOA).
> 
> So my question to you is, what is the process for going from the *.iso
> file to create the CD.
> 
> Sincerely,
> 
> Jaime Ash
> email: jaimeash@home.com

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From - Thu Nov 08 21:18:48 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] toolchain
Date: Mon, 13 Aug 2001 17:19:25 -0600
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   of "Sun, 12 Aug 2001 12:28:25 PDT." <Pine.LNX.4.10.10108121225590.4893-100000@whiplash.stampede.org> 
Xref: news.gmane.org gmane.linux.ports.parisc:11872

DraX wrote:
> xMach will soon be talking the PA-Mach port from Utah and merging it in to
> our source tree, but we are in need of a new PA-RISC toolchain.

xMach is another kernel+OS?

Just had a flashback...the unix wars are *not* over...they've somehow
shifted to a sort-of-voluntary army. :^(


> Is the PA-Linux team now the maintainers of it?

No. We don't maintain it any more than anyone else. AFAIK, all of
the changes the parisc-linux port needs are back upstream to the gcc
and binutils maintainers.

BTW, Kudos again to the random collection of people who've worked on it for
the past couple of years.

> If so could someone give a little
> less linux oriented instructions for building the tool chain?

Though someone might be able to answer your question, I'd expect
better results by querying an xMach mailing list.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:18:48 2018
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On Mon, 13 Aug 2001, Grant Grundler wrote:

> DraX wrote:
> > xMach will soon be talking the PA-Mach port from Utah and merging it in to
> > our source tree, but we are in need of a new PA-RISC toolchain.
> 
> xMach is another kernel+OS?
> 
Yup, www.xmach.org
> Just had a flashback...the unix wars are *not* over...they've somehow
> shifted to a sort-of-voluntary army. :^(
> 
> 
> > Is the PA-Linux team now the maintainers of it?
> 
> No. We don't maintain it any more than anyone else. AFAIK, all of
> the changes the parisc-linux port needs are back upstream to the gcc
> and binutils maintainers.
> 
ok, thanks.

> BTW, Kudos again to the random collection of people who've worked on it for
> the past couple of years.
> 
The original port was done by the people that wrote the first Mach port to
PA-RISC.
> > If so could someone give a little
> > less linux oriented instructions for building the tool chain?
> 
> Though someone might be able to answer your question, I'd expect
> better results by querying an xMach mailing list.
> 
> grant
> 
> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253
> 





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In-Reply-To: Message from Christian Weerts <christian@familie-weerts.de> 
   of "Mon, 13 Aug 2001 18:07:36 -0000." <20010813180736.A306@familie-weerts.de> 
Xref: news.gmane.org gmane.linux.ports.parisc:11874

Christian Weerts wrote:
> Hi,
> 
> is there anyone who has a running 715/80? I want to build a kernel for this
> machine discribed in the nfsroot howto from Martin Petersen, but i don't
> have HP-UX anywhere.

You don't need to have HPUX - note the date of Martin's HOW-TO.
It was posted when we were still using SOM binaries and the linker only
ran under HPUX. You should be able to install from the 0.92 ISO
and build kernels natively.

Or build kernels on x86-linux using the XC toolchain built by Matt Taggart
and posted to the puffin.external.hp.com ftp site. Search parisc-linux
mail archives since May 2001 if you want the full URL.

> If i had a kernel perhaps i could boot the machine over LAN.

Could you mount the 0.92 ISO on an x86-linux box and steal that kernel?
(there are probably several but just try the 32-bit ones.)

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




From - Thu Nov 08 21:18:49 2018
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From: Peter Weilbacher <weilbach@uni-sw.gwdg.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Keyboard with 2.4.7-pa2
Date: Tue, 14 Aug 2001 12:37:48 +0200 (CEST)
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Xref: news.gmane.org gmane.linux.ports.parisc:11875

Hi,

I tried the current kernel-tarball linux-20010810.tar.gz and
compiled it successfully using the cross-compiler palinux-20010530
(too slow on my HP 712/60) on a Linux machine. I used the same
config-options as in the working 2.4.0-pa49 kernel I was using
successfully before, but I cannot use the keyboard, neither in X nor
on the console, although the kernel seems to have recognized the
keyboard (from dmesg):

Lasi PS/2 wait 2057
Lasi PS/2 wait 1881
PS/2 keyboard controller at 0xf0108000 (irq 69) found, device attached.
PS/2 psaux controller at 0xf0108100 (irq 69) found, no device attached.

There was some discussion on keyboard problems some time ago, but
that was for [BC]* machines... Is this also known? Where can I find
more info (which logs) to help solve the problem?

Greetings,
	Peter.





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From: Peter Weilbacher <weilbach@uni-sw.gwdg.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Once more: JFS
Date: Tue, 14 Aug 2001 12:46:47 +0200 (CEST)
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Hi again,

I gave it a new try with JFS on PA-RISC-Linux. I got kernel
2.4.7-pa2 (linux-20010810.tar.gz) and patched it with JFS 1.0.2.
Cross-compiling the kernel went well, but I had to use the native
PA-RISC-gcc to compile the utilities.

mkfs.jfs now works ok, as opposed to kernel 2.4.0-pa49, and I can
copy files to that partition, but fsck.jfs seems to have problems.
When checking on boot the following messages are written to dmesg:

fsck.jfs(34): unaligned access to 0xfaf0050f at ip=0x0002e50b
fsck.jfs(34): unaligned access to 0xfaf0050f at ip=0x0002e517
fsck.jfs(34): unaligned access to 0xfaf0050f at ip=0x0002e533
fsck.jfs(34): unaligned access to 0xfaf0050f at ip=0x0002e443
fsck.jfs(34): unaligned access to 0xfaf0050f at ip=0x0002e50b
fsck.jfs(34): unaligned access to 0xfaf0050f at ip=0x0002e517
fsck.jfs(34): unaligned access to 0xfaf0050f at ip=0x0002e533
fsck.jfs(34): unaligned access to 0xfaf0050f at ip=0x0002e443
fsck.jfs(34): unaligned access to 0xfaf0058f at ip=0x0002e50b
fsck.jfs(34): unaligned access to 0xfaf0058f at ip=0x0002e517
fsck.jfs(34): unaligned access to 0xfaf0058f at ip=0x0002e533
fsck.jfs(34): unaligned access to 0xfaf0058f at ip=0x0002e443
fsck.jfs(34): unaligned access to 0xfaf004cf at ip=0x0002e50b
fsck.jfs(34): unaligned access to 0xfaf004cf at ip=0x0002e517
fsck.jfs(34): unaligned access to 0xfaf004cf at ip=0x0002e533
fsck.jfs(34): unaligned access to 0xfaf004cf at ip=0x0002e443
fsck.jfs(34): unaligned access to 0xfaf004cf at ip=0x0002e50b
fsck.jfs(34): unaligned access to 0xfaf004cf at ip=0x0002e517
fsck.jfs(34): unaligned access to 0xfaf004cf at ip=0x0002e533
fsck.jfs(34): unaligned access to 0xfaf004cf at ip=0x0002e443
fsck.jfs(34): unaligned access to 0xfaf004cf at ip=0x0002e50b
fsck.jfs(34): unaligned access to 0xfaf004cf at ip=0x0002e517
fsck.jfs(34): unaligned access to 0xfaf004cf at ip=0x0002e533
fsck.jfs(34): unaligned access to 0xfaf004cf at ip=0x0002e443

And hundreds more similar errors when doing a manual fsck.jfs are
written to kern.log, and this check never finishes...

This time it seems to be a PA-RISC-Linux problem, as I recall
earlier problems with "unaligned access" messages.

Greetings,
	Peter.





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From: Christian Weerts <christian@familie-weerts.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [christian@familie-weerts.de: Re: [parisc-linux] LAN booting]
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--a8Wt8u1KmwUX3Y2C
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Hi,
*plong*

Sorry, i forget the attchements ;)

----- Forwarded message from Christian Weerts <christian@familie-weerts.de> -----

Date: Tue, 14 Aug 2001 13:53:37 +0000
From: Christian Weerts <christian@familie-weerts.de>
To: Grant Grundler <grundler@puffin.external.hp.com>
Cc: parisc-ml <parisc-linux@lists.parisc-linux.org>
Subject: Re: [parisc-linux] LAN booting
Reply-To: Christian Weerts <christian@familie-weerts.de>
User-Agent: Mutt/1.2.5i
In-Reply-To: <200108132355.RAA14012@puffin.external.hp.com>; from grundler@puffin.external.hp.com on Mon, Aug 13, 2001 at 05:55:23PM -0600
Organization: private

* Grant Grundler <grundler@puffin.external.hp.com> [010813 23:55]:
> Christian Weerts wrote:
> > Hi,
> > 
> > is there anyone who has a running 715/80? I want to build a kernel for this
> > machine discribed in the nfsroot howto from Martin Petersen, but i don't
> > have HP-UX anywhere.
> 
> You don't need to have HPUX - note the date of Martin's HOW-TO.
> It was posted when we were still using SOM binaries and the linker only
> ran under HPUX. You should be able to install from the 0.92 ISO
> and build kernels natively.
I will try, but first i had to boot the machine over LAN, that's my problem
at the moment.
The RISC-Machine tells something like "Error: cannot load IPL, error
detected. Bootprocess failed..."
Perhaps you could help me, so i attach the bootptab and the dhcp-conf. Also
attached are the daemon.log and output from tcpdump. Btw., gorilla is the
server and mirage the client.
I don't know what's wrong. 
On the risc-machine i told him to boot from the lan.<hw-addr-server>.

> 
> Or build kernels on x86-linux using the XC toolchain built by Matt Taggart
> and posted to the puffin.external.hp.com ftp site. Search parisc-linux
> mail archives since May 2001 if you want the full URL.
Ack.

> 
> > If i had a kernel perhaps i could boot the machine over LAN.
> 
> Could you mount the 0.92 ISO on an x86-linux box and steal that kernel?
> (there are probably several but just try the 32-bit ones.)
I'll try. So, you mean i don't need the nfsroot-package named in Martin's
HOWTO?

Greets from northern germany

	Christian

-- 
http://oldenburg.linux.de

----- End forwarded message -----

-- 
Gruss,
	Christian

-- 
http://oldenburg.linux.de

--a8Wt8u1KmwUX3Y2C
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=bootptab

# /etc/bootptab: database for bootp server (/usr/sbin/bootpd)

# Blank lines and lines beginning with '#' are ignored.
#
# Legend:	(see bootptab.5)
#	first field -- hostname (not indented)
#	bf -- bootfile
#	bs -- bootfile size in 512-octet blocks
#	cs -- cookie servers
#	df -- dump file name
#	dn -- domain name
#	ds -- domain name servers
#	ef -- extension file
#	gw -- gateways
#	ha -- hardware address
#	hd -- home directory for bootfiles
#	hn -- host name set for client
#	ht -- hardware type
#	im -- impress servers
#	ip -- host IP address
#	lg -- log servers
#	lp -- LPR servers
#	ns -- IEN-116 name servers
#	ra -- reply address
#	rl -- resource location protocol servers
#	rp -- root path
#	sa -- boot server address
#	sm -- subnet mask
#	sw -- swap server
#	tc -- template host (points to similar host entry)
#	td -- TFTP directory
#	to -- time offset (seconds)
#	ts -- time servers
#	vm -- vendor magic number
#	Tn -- generic option tag n
#
# Be careful about including backslashes where they're needed.  Weird (bad)
# things can happen when a backslash is omitted where one is intended.
# Also, note that generic option data must be either a string or a
# sequence of bytes where each byte is a two-digit hex value.
mirage:\
	:hd=/tftpboot:\
	:bf=vmlinux:\
	:ht=ether:\
	:ha=0800095fd588:\
	:sm=255.255.255.0:\
	:ip=192.168.14.1:\
	:vm=rfc1048:


--a8Wt8u1KmwUX3Y2C
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="daemon.log"

Aug 14 10:53:31 gorilla dhcpd-2.2.x: Internet Software Consortium DHCP Server 2.0
Aug 14 10:53:31 gorilla dhcpd-2.2.x: Copyright 1995, 1996, 1997, 1998, 1999 The Internet Software Consortium.
Aug 14 10:53:31 gorilla dhcpd-2.2.x: All rights reserved.
Aug 14 10:53:31 gorilla dhcpd-2.2.x: 
Aug 14 10:53:31 gorilla dhcpd-2.2.x: Please contribute if you find this software useful.
Aug 14 10:53:31 gorilla dhcpd-2.2.x: For info, please visit http://www.isc.org/dhcp-contrib.html
Aug 14 10:53:31 gorilla dhcpd-2.2.x: 
Aug 14 10:53:33 gorilla dhcpd-2.2.x: Listening on LPF/eth0/00:80:ad:c6:6c:cc/192.168.14.0
Aug 14 10:53:33 gorilla dhcpd-2.2.x: Sending on   LPF/eth0/00:80:ad:c6:6c:cc/192.168.14.0
Aug 14 10:53:33 gorilla dhcpd-2.2.x: Sending on   Socket/fallback/fallback-net
Aug 14 10:53:39 gorilla proftpd[224]: gorilla - ProFTPD 1.2.0pre10 standalone mode STARTUP 
Aug 14 10:58:22 gorilla dhcpd-2.2.x: Internet Software Consortium DHCP Server 2.0
Aug 14 10:58:22 gorilla dhcpd-2.2.x: Copyright 1995, 1996, 1997, 1998, 1999 The Internet Software Consortium.
Aug 14 10:58:22 gorilla dhcpd-2.2.x: All rights reserved.
Aug 14 10:58:22 gorilla dhcpd-2.2.x: 
Aug 14 10:58:22 gorilla dhcpd-2.2.x: Please contribute if you find this software useful.
Aug 14 10:58:22 gorilla dhcpd-2.2.x: For info, please visit http://www.isc.org/dhcp-contrib.html
Aug 14 10:58:22 gorilla dhcpd-2.2.x: 
Aug 14 10:58:22 gorilla dhcpd-2.2.x: Listening on LPF/eth0/00:80:ad:c6:6c:cc/192.168.14.0
Aug 14 10:58:22 gorilla dhcpd-2.2.x: Sending on   LPF/eth0/00:80:ad:c6:6c:cc/192.168.14.0
Aug 14 10:58:22 gorilla dhcpd-2.2.x: Sending on   Socket/fallback/fallback-net
Aug 14 10:59:30 gorilla dhcpd-2.2.x: BOOTREQUEST from 08:00:09:5f:d5:88 via eth0
Aug 14 10:59:30 gorilla dhcpd-2.2.x: BOOTREPLY for 192.168.14.1 to mirage (08:00:09:5f:d5:88) via eth0
Aug 14 10:59:30 gorilla bootpd[308]: version 2.4.3
Aug 14 10:59:30 gorilla in.tftpd[309]: connect from mirage
Aug 14 10:59:30 gorilla tftpd[310]: tftpd: trying to get file: vmlinux-20010629-parisc 
Aug 14 10:59:30 gorilla tftpd[310]: tftpd: serving file from /boot 
Aug 14 10:59:31 gorilla in.tftpd[311]: connect from mirage
Aug 14 10:59:31 gorilla tftpd[312]: tftpd: trying to get file: vmlinux-20010629-parisc 
Aug 14 10:59:31 gorilla tftpd[312]: tftpd: serving file from /boot 
Aug 14 10:59:31 gorilla in.tftpd[313]: connect from mirage
Aug 14 10:59:31 gorilla tftpd[314]: tftpd: trying to get file: vmlinux-20010629-parisc 
Aug 14 10:59:31 gorilla tftpd[314]: tftpd: serving file from /boot 
Aug 14 10:59:31 gorilla in.tftpd[315]: connect from mirage
Aug 14 10:59:31 gorilla tftpd[316]: tftpd: trying to get file: vmlinux-20010629-parisc 
Aug 14 10:59:31 gorilla tftpd[316]: tftpd: serving file from /boot 
Aug 14 11:01:17 gorilla dhcpd-2.2.x: BOOTREQUEST from 08:00:09:5f:d5:88 via eth0
Aug 14 11:01:17 gorilla dhcpd-2.2.x: BOOTREPLY for 192.168.14.1 to mirage (08:00:09:5f:d5:88) via eth0
Aug 14 11:01:18 gorilla in.tftpd[418]: connect from mirage
Aug 14 11:01:18 gorilla tftpd[419]: tftpd: trying to get file: /tftpboot/vmlinux 
Aug 14 11:01:18 gorilla in.tftpd[420]: connect from mirage
Aug 14 11:01:18 gorilla tftpd[421]: tftpd: trying to get file: /tftpboot/vmlinux 
Aug 14 11:01:18 gorilla in.tftpd[422]: connect from mirage
Aug 14 11:01:18 gorilla tftpd[423]: tftpd: trying to get file: /tftpboot/vmlinux 
Aug 14 11:01:18 gorilla in.tftpd[424]: connect from mirage
Aug 14 11:01:18 gorilla tftpd[425]: tftpd: trying to get file: /tftpboot/vmlinux 
Aug 14 11:02:11 gorilla dhcpd-2.2.x: BOOTREQUEST from 08:00:09:5f:d5:88 via eth0
Aug 14 11:02:11 gorilla dhcpd-2.2.x: BOOTREPLY for 192.168.14.1 to mirage (08:00:09:5f:d5:88) via eth0
Aug 14 11:02:12 gorilla in.tftpd[510]: connect from mirage
Aug 14 11:02:12 gorilla tftpd[511]: tftpd: trying to get file: /tftpboot/vmlinux 
Aug 14 11:02:12 gorilla in.tftpd[512]: connect from mirage
Aug 14 11:02:12 gorilla tftpd[513]: tftpd: trying to get file: /tftpboot/vmlinux 
Aug 14 11:02:12 gorilla in.tftpd[514]: connect from mirage
Aug 14 11:02:12 gorilla tftpd[515]: tftpd: trying to get file: /tftpboot/vmlinux 
Aug 14 11:02:12 gorilla in.tftpd[516]: connect from mirage
Aug 14 11:02:12 gorilla tftpd[517]: tftpd: trying to get file: /tftpboot/vmlinux 
Aug 14 11:04:28 gorilla dhcpd-2.2.x: BOOTREQUEST from 08:00:09:5f:d5:88 via eth0
Aug 14 11:04:28 gorilla dhcpd-2.2.x: BOOTREPLY for 192.168.14.1 to mirage (08:00:09:5f:d5:88) via eth0
Aug 14 11:04:29 gorilla in.tftpd[547]: connect from mirage
Aug 14 11:04:29 gorilla tftpd[548]: tftpd: trying to get file: /tftpboot/vmlinux 
Aug 14 11:04:29 gorilla in.tftpd[549]: connect from mirage
Aug 14 11:04:29 gorilla tftpd[550]: tftpd: trying to get file: /tftpboot/vmlinux 
Aug 14 11:04:29 gorilla in.tftpd[551]: connect from mirage
Aug 14 11:04:29 gorilla tftpd[552]: tftpd: trying to get file: /tftpboot/vmlinux 
Aug 14 11:04:29 gorilla in.tftpd[553]: connect from mirage
Aug 14 11:04:29 gorilla tftpd[554]: tftpd: trying to get file: /tftpboot/vmlinux 

--a8Wt8u1KmwUX3Y2C
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="dhcpd.conf"

# dhcpd.conf
#
subnet 192.168.14.0 netmask 255.255.255.0 {}
 host mirage {
    hardware ethernet 08:00:09:5f:d5:88;
    fixed-address 192.168.14.1;
    option host-name "mirage";
    option domain-name-servers 192.168.14.101;
    option routers 192.14.168.101;
    option root-path "/tftpboot";
    filename "vmlinux-20010629-parisc";
 }

--a8Wt8u1KmwUX3Y2C
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=risc-tcpdump

10:59:30.203655 0.0.0.0.bootpc > 255.255.255.255.bootps: xid:0xfcc5d534 [|bootp]
10:59:30.291983 gorilla.bootps > 255.255.255.255.bootpc: xid:0xfcc5d534 Y:mirage S:gorilla [|bootp] [tos 0x10]
10:59:30.550151 mirage.28920 > gorilla.tftp: 516 RRQ "vmlinux-20010629-parisc" [tos 0x10]
10:59:30.737484 gorilla.bootps > mirage.bootpc: xid:0xfcc5d534 Y:mirage S:gorilla [|bootp]
10:59:30.738265 mirage.bootpc > gorilla.bootps: bootp-#0 htype-#5 hlen:0 xid:0x7e7e7e secs:32382 C:126.126.126.126 [|bootp] [tos 0x10]
10:59:30.987459 gorilla.1026 > mirage.28920: udp 19
10:59:30.988251 mirage.28920 > gorilla.1026: udp 5 [tos 0x10]
10:59:30.988370 gorilla > mirage: icmp: gorilla udp port 1026 unreachable [tos 0xd0]
10:59:30.989018 mirage.46975 > gorilla.tftp: 516 RRQ "vmlinux-20010629-parisc" [tos 0x10]
10:59:31.003815 arp who-has mail tell gorilla
10:59:31.017558 gorilla.1027 > mirage.46975: udp 19
10:59:31.018345 mirage.46975 > gorilla.1027: udp 5 [tos 0x10]
10:59:31.018440 gorilla > mirage: icmp: gorilla udp port 1027 unreachable [tos 0xd0]
10:59:31.019117 mirage.4884 > gorilla.tftp: 516 RRQ "vmlinux-20010629-parisc" [tos 0x10]
10:59:31.044535 gorilla.1027 > mirage.4884: udp 19
10:59:31.045323 mirage.4884 > gorilla.1027: udp 5 [tos 0x10]
10:59:31.045420 gorilla > mirage: icmp: gorilla udp port 1027 unreachable [tos 0xd0]
10:59:31.046103 mirage.36632 > gorilla.tftp: 516 RRQ "vmlinux-20010629-parisc" [tos 0x10]
10:59:31.070682 gorilla.1027 > mirage.36632: udp 19
10:59:31.994754 arp who-has mail tell gorilla
10:59:32.994113 arp who-has mail tell gorilla
10:59:35.734110 arp who-has mirage tell gorilla
10:59:36.004477 arp who-has mail tell gorilla
10:59:36.734107 arp who-has mirage tell gorilla
10:59:37.004111 arp who-has mail tell gorilla
10:59:37.734097 arp who-has mirage tell gorilla
10:59:38.004108 arp who-has mail tell gorilla
10:59:38.734116 arp who-has mirage tell gorilla
10:59:39.734107 arp who-has mirage tell gorilla
10:59:40.734125 arp who-has mirage tell gorilla
10:59:41.014470 arp who-has mail tell gorilla
10:59:42.014111 arp who-has mail tell gorilla
10:59:43.014112 arp who-has mail tell gorilla
11:01:17.943250 0.0.0.0.bootpc > 255.255.255.255.bootps: xid:0xfe9a16d2 [|bootp]
11:01:17.943801 gorilla.bootps > mirage.bootpc: xid:0xfe9a16d2 Y:mirage S:gorilla [|bootp]
11:01:17.945226 gorilla.bootps > 255.255.255.255.bootpc: xid:0xfe9a16d2 Y:mirage S:gorilla [|bootp] [tos 0x10]
11:01:18.202014 mirage.61744 > gorilla.tftp: 516 RRQ "/tftpboot/vmlinux" [tos 0x10]
11:01:18.665590 gorilla.1028 > mirage.61744: udp 21
11:01:18.666406 mirage.61744 > gorilla.1028: udp 5 [tos 0x10]
11:01:18.666509 gorilla > mirage: icmp: gorilla udp port 1028 unreachable [tos 0xd0]
11:01:18.667176 mirage.21207 > gorilla.tftp: 516 RRQ "/tftpboot/vmlinux" [tos 0x10]
11:01:18.691709 gorilla.1028 > mirage.21207: udp 21
11:01:18.692501 mirage.21207 > gorilla.1028: udp 5 [tos 0x10]
11:01:18.692600 gorilla > mirage: icmp: gorilla udp port 1028 unreachable [tos 0xd0]
11:01:18.693267 mirage.16473 > gorilla.tftp: 516 RRQ "/tftpboot/vmlinux" [tos 0x10]
11:01:18.717603 gorilla.1028 > mirage.16473: udp 21
11:01:18.718393 mirage.16473 > gorilla.1028: udp 5 [tos 0x10]
11:01:18.718494 gorilla > mirage: icmp: gorilla udp port 1028 unreachable [tos 0xd0]
11:01:18.719163 mirage.3815 > gorilla.tftp: 516 RRQ "/tftpboot/vmlinux" [tos 0x10]
11:01:18.743408 gorilla.1028 > mirage.3815: udp 21
11:01:22.934151 arp who-has mirage tell gorilla
11:01:23.934110 arp who-has mirage tell gorilla
11:01:24.934114 arp who-has mirage tell gorilla
11:01:25.934152 arp who-has mirage tell gorilla
11:01:26.934112 arp who-has mirage tell gorilla
11:01:27.934111 arp who-has mirage tell gorilla
11:02:11.742023 0.0.0.0.bootpc > 255.255.255.255.bootps: xid:0xff2d883a [|bootp]
11:02:11.742534 gorilla.bootps > mirage.bootpc: xid:0xff2d883a Y:mirage S:gorilla [|bootp]
11:02:11.743916 gorilla.bootps > 255.255.255.255.bootpc: xid:0xff2d883a Y:mirage S:gorilla [|bootp] [tos 0x10]
11:02:12.000727 mirage.47698 > gorilla.tftp: 516 RRQ "/tftpboot/vmlinux" [tos 0x10]
11:02:12.272910 gorilla.1028 > mirage.47698: udp 21
11:02:12.273723 mirage.47698 > gorilla.1028: udp 5 [tos 0x10]
11:02:12.274492 mirage.9305 > gorilla.tftp: 516 RRQ "/tftpboot/vmlinux" [tos 0x10]
11:02:12.299014 gorilla.1028 > mirage.9305: udp 21
11:02:12.299803 mirage.9305 > gorilla.1028: udp 5 [tos 0x10]
11:02:12.299903 gorilla > mirage: icmp: gorilla udp port 1028 unreachable [tos 0xd0]
11:02:12.300572 mirage.4209 > gorilla.tftp: 516 RRQ "/tftpboot/vmlinux" [tos 0x10]
11:02:12.324935 gorilla.1028 > mirage.4209: udp 21
11:02:12.325727 mirage.4209 > gorilla.1028: udp 5 [tos 0x10]
11:02:12.325826 gorilla > mirage: icmp: gorilla udp port 1028 unreachable [tos 0xd0]
11:02:12.326495 mirage.59306 > gorilla.tftp: 516 RRQ "/tftpboot/vmlinux" [tos 0x10]
11:02:12.350826 gorilla.1028 > mirage.59306: udp 21
11:02:16.734099 arp who-has mirage tell gorilla
11:02:17.734092 arp who-has mirage tell gorilla
11:02:18.734087 arp who-has mirage tell gorilla
11:02:19.734085 arp who-has mirage tell gorilla
11:02:20.734085 arp who-has mirage tell gorilla
11:02:21.734086 arp who-has mirage tell gorilla
11:04:28.903665 0.0.0.0.bootpc > 255.255.255.255.bootps: xid:0x8d535e1e [|bootp]
11:04:28.904022 gorilla.bootps > mirage.bootpc: xid:0x8d535e1e Y:mirage S:gorilla [|bootp]
11:04:28.905453 gorilla.bootps > 255.255.255.255.bootpc: xid:0x8d535e1e Y:mirage S:gorilla [|bootp] [tos 0x10]
11:04:29.162226 mirage.25361 > gorilla.tftp: 516 RRQ "/tftpboot/vmlinux" [tos 0x10]
11:04:29.187446 gorilla.1028 > mirage.25361: udp 21
11:04:29.188254 mirage.25361 > gorilla.1028: udp 5 [tos 0x10]
11:04:29.188354 gorilla > mirage: icmp: gorilla udp port 1028 unreachable [tos 0xd0]
11:04:29.189029 mirage.13572 > gorilla.tftp: 516 RRQ "/tftpboot/vmlinux" [tos 0x10]
11:04:29.213331 gorilla.1028 > mirage.13572: udp 21
11:04:29.214137 mirage.13572 > gorilla.1028: udp 5 [tos 0x10]
11:04:29.214237 gorilla > mirage: icmp: gorilla udp port 1028 unreachable [tos 0xd0]
11:04:29.214890 mirage.842 > gorilla.tftp: 516 RRQ "/tftpboot/vmlinux" [tos 0x10]
11:04:29.239187 gorilla.1028 > mirage.842: udp 21
11:04:29.239975 mirage.842 > gorilla.1028: udp 5 [tos 0x10]
11:04:29.240069 gorilla > mirage: icmp: gorilla udp port 1028 unreachable [tos 0xd0]
11:04:29.240745 mirage.52098 > gorilla.tftp: 516 RRQ "/tftpboot/vmlinux" [tos 0x10]
11:04:29.265085 gorilla.1028 > mirage.52098: udp 21

--a8Wt8u1KmwUX3Y2C--




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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Once more: JFS
Date: Tue, 14 Aug 2001 08:25:32 -0700
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To: Peter Weilbacher <weilbach@uni-sw.gwdg.de>
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> And hundreds more similar errors when doing a manual fsck.jfs are
> written to kern.log, and this check never finishes...
> 
> This time it seems to be a PA-RISC-Linux problem, as I recall
> earlier problems with "unaligned access" messages.

The unaligned messages by themselves indicate a *user-space* problem. We can
look at the fsck.jfs code and see what it's doing.... my guess is that
there's some casting going on that is causing the unaligned accesses.
For example, if you had something like this:

char foo[10];
long *bar = (long *)(foo+2);

*bar = 10;

then it will trigger an unaligned access. (usually it's not quite that
obvious though)

If you see a "Not-handled unaligned access" message then there's a
kernel issue that we need to address, but doesn't seem to be the case
here.

Please visit http://bugs.parisc-linux.org/ and follow the instructions
to file a bug, and we will look into this.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] iotree thoughts
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On Thu, Aug 09, 2001 at 09:06:43AM -0600, Grant Grundler wrote:
> Yes. AFAIK, LASI sub-devices are listed by PDC. For Dino HPUX makes
> a special hvers PDC call. Need to look at the HPUX code or Raven PDC ERS.

If you could dig those out for me, that'd be great.  I'm not familiar with
the layout of the HPUX source tree yet.

> > 
> > Here's my plan:
> > 
> >  * From setup_arch, call PDC to get a list of devices.  Put them in a
> >    table (marked __init, will be freed later).
> 
> Why not start building a tree with "place holder" nodes directly?
> Do we need the intermediate table because of memory issues?
> 
> ie build a "sparse" tree and have Native Bus walk fill in (or update
> wrong) info for devices it finds.

Two reasons: first, kmalloc isn't initialised at this point.  Changing
this would be moderately hard and would require a large reorganisation
of the initialisation code.  Secondly, building a sparse tree would take
more code :-)

> >  * In the badly-named gsc_init, or perhaps in pcibios_init, start the
> >    ABW at 0xFFF80000 -- this seems to be the defined location for the
> >    central bus.
> 
> My long term goal is to be able to build a kernel w/o CONFIG_PCI defined.
> And renaming gsc_init to native_bus_init() sounds like a good idea.

That's a good point.  A good step towards that would be..

Index: include/asm-parisc/io.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/io.h,v
retrieving revision 1.22
diff -u -p -r1.22 io.h
--- io.h        2001/07/15 22:30:29     1.22
+++ io.h        2001/08/14 15:59:37
@@ -43,9 +43,6 @@
 #endif /* USE_HPPA_IOREMAP */
 
 #if defined(CONFIG_PCI) || defined(CONFIG_ISA)
-/*
- *     So we get clear link errors 
- */
 extern unsigned char inb(unsigned long addr);
 extern unsigned short inw(unsigned long addr);
 extern unsigned int inl(unsigned long addr);
@@ -54,6 +51,13 @@ extern void outb(unsigned char b, unsign
 extern void outw(unsigned short b, unsigned long addr);
 extern void outl(unsigned int b, unsigned long addr);
 
+#else
+#define inb(a) BUG()
+#define inw(a) BUG()
+#define inl(a) BUG()
+#define outb(a) BUG()
+#define outw(a) BUG()
+#define outl(a) BUG()
 #endif
 
 extern void memcpy_fromio(void *dest, unsigned long src, int count);


-- 
Revolutions do not require corporate support.




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From: Peter Weilbacher <weilbach@uni-sw.gwdg.de>
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Subject: Re: [parisc-linux] Once more: JFS
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On Tue, 14 Aug 2001, Randolph Chung wrote:

> The unaligned messages by themselves indicate a *user-space* problem. We can
> look at the fsck.jfs code and see what it's doing.... my guess is that
> there's some casting going on that is causing the unaligned accesses.
[...]
> then it will trigger an unaligned access. (usually it's not quite that
> obvious though)

I am a bit out of programming, so I reported it to the JFS people,
they should be faster at finding this than me.

> If you see a "Not-handled unaligned access" message then there's a
> kernel issue that we need to address, but doesn't seem to be the case
> here.

No, none like that. Thanks for the explenation!

	Peter.





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Subject: Re: [parisc-linux] Kernel 2.4.8
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On Sat, Aug 11, 2001 at 02:54:53PM +0800, Andrew Shugg wrote:
> 2.4's patchlevel is getting closer to double digits.  Does this mean
> upgrades are getting safer?  =)
> 
> Or less facetiously, is another CVS merge planned or are there problems
> in this release as with 2.4.7?  (Don't follow l-k and am just curious.)

I think we should plan to merge in 2.4.8 this week.  Paul, can you do the
CVS magic sometime soon?

-- 
Revolutions do not require corporate support.




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installed 0.9.2 from cd ,, can ping and telnet out ,, unable to telnet in ,,
looked in inetd.conf -- no ref to telnetd ,, looked for telnetd none found
,, thanks for the help in advance

christopher




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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] Telnetd ?
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Hi Christopher,

By default, telnetd is not installed. You have to do it with apt-get
install telnetd

The point is during the install, you should have been asked to give some
info in order to download automatically the packages via apt-get.

If the command is not working, go into /etc/apt and add the following
line to sources.list:
deb http://http.us.debian.org/debian unstable main

And if you have a proxy, do not forget to create apt.conf file
containing this line:
Acquire::http::Proxy "http://your.proxy.fqdn:port/";

Good luck, Thomas.
ESIEE Team




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christopher_toland@hp.com (TOLAND,CHRISTOPHER HP-USA,ex1) writes:

> installed 0.9.2 from cd ,, can ping and telnet out ,, unable to telnet in ,,
> looked in inetd.conf -- no ref to telnetd ,, looked for telnetd none found
> ,, thanks for the help in advance

The telnetd package is available for installation on hppa from any Debian
mirror.  I can't comment on why it was or was not included in the CD image,
but I can tell you that I don't allow telnetd's on machines I personally
administer because of the various security issues.  I strongly prefer ssh...

Bdale




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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Users staying up to date.
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parisc,

I would like to say that you guys have done a great job
with this port!

I was just looking to bounce some ideas off the list members.
As an avid user, I was just musing to myself, how can I keep
everything up to date (kernel/glibc/packages)?

Obviously the latest kernel/glibc/gcc... will reside in the
CVS. It's a matter of slurping/building and testing on one
of our boxen.

The packages are a slightly different matter. Is the 0.9.2
iso the latest collection of packages? Is anyone in debain-hppa
compiling/testing packages?

We have a cluster of 30x 715/50's running.
And for one reason or another have not quite gotten the debian
installer to run to completetion (nor can I spend the time to
install on each node... that's what scripts and root tarballs
are for).

Instead we have used the baseplus tar from sid to install the nodes.
The only extra packages we required were NIS(yp*) and MPICH(1.2.1).

I recently found though, that when compiling more complicated
MPI programs, cc and ld start dropping SIG11's like there was
no tommorow (more on this after I do some testing).

Is there a fundamental flaw in using sid's baseplus tarball for
the 715/50 systems?

We were doing:
1- Unpack sid baseplus root tarball
2- x-compiled and installed NIS(yp*) and MPICH
3- Use this as my new root tarball for the rest of the cluster

Should I be doing:

1- Unpack sid baseplus and export via nfs
2- Download latest debs and export via nfs
3- Boot "clone" box with nfs root
4- Point apt to the debs on the nfs share
5- Update packages like mad
6- Use "clone" as my new root tarball for the rest of the cluster

Really, I'm just looking for a simple way to stay up to date
with all the latest packages and kernel changes :)

Cheers,
Carlos O'Donell Jr.
-------------------------
Baldric Project
http://www.baldric.uwo.ca
-------------------------




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carlos@baldric.uwo.ca (Carlos O'Donell Jr.) writes:

> Obviously the latest kernel/glibc/gcc... will reside in the
> CVS. It's a matter of slurping/building and testing on one
> of our boxen.

Actually, I just uploaded gcc to the Debian archive built entirely from the
Debian source package, and am working on glibc right now.  The only thing that
there is still any need to use CVS for is the kernel, and I'll be working on
that too once the merge up to 2.4.8 is done.

> The packages are a slightly different matter. Is the 0.9.2
> iso the latest collection of packages? Is anyone in debain-hppa
> compiling/testing packages?

We have a full-time Debian autobuilder running, so on any given day in excess
of 70% of all Debian packages are fully up to date in the unstable tree of
the Debian mirrors.

For a cluster config such as yours, the ideal situation is probably to set 
up a caching proxy like a squid server, and then configure all of your machines
to do their apt-get's from the Debian mirror network through the cache.  That
keeps you as current as you want to be, eliminates any manual steps involved
in maintaining a local cache of packages, and means that you only pull each
package once from the mirror network.

Bdale




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From: Christian Weerts <christian@familie-weerts.de>
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* Grant Grundler <grundler@puffin.external.hp.com> [010813 23:55]:
> Christian Weerts wrote:
> > Hi,
> > 
> > is there anyone who has a running 715/80? I want to build a kernel for this
> > machine discribed in the nfsroot howto from Martin Petersen, but i don't
> > have HP-UX anywhere.
> 
> You don't need to have HPUX - note the date of Martin's HOW-TO.
> It was posted when we were still using SOM binaries and the linker only
> ran under HPUX. You should be able to install from the 0.92 ISO
> and build kernels natively.
I will try, but first i had to boot the machine over LAN, that's my problem
at the moment.
The RISC-Machine tells something like "Error: cannot load IPL, error
detected. Bootprocess failed..."
Perhaps you could help me, so i attach the bootptab and the dhcp-conf. Also
attached are the daemon.log and output from tcpdump. Btw., gorilla is the
server and mirage the client.
I don't know what's wrong. 
On the risc-machine i told him to boot from the lan.<hw-addr-server>.

> 
> Or build kernels on x86-linux using the XC toolchain built by Matt Taggart
> and posted to the puffin.external.hp.com ftp site. Search parisc-linux
> mail archives since May 2001 if you want the full URL.
Ack.

> 
> > If i had a kernel perhaps i could boot the machine over LAN.
> 
> Could you mount the 0.92 ISO on an x86-linux box and steal that kernel?
> (there are probably several but just try the 32-bit ones.)
I'll try. So, you mean i don't need the nfsroot-package named in Martin's
HOWTO?

Greets from northern germany

	Christian

-- 
http://oldenburg.linux.de




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From: Paul Bame <bame@riverrock.org>
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Subject: Re: [parisc-linux] Kernel 2.4.8
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> On Sat, Aug 11, 2001 at 02:54:53PM +0800, Andrew Shugg wrote:
> > 2.4's patchlevel is getting closer to double digits.  Does this mean
> > upgrades are getting safer?  =)
> > 
> > Or less facetiously, is another CVS merge planned or are there problems
> > in this release as with 2.4.7?  (Don't follow l-k and am just curious.)
> 
> I think we should plan to merge in 2.4.8 this week.  Paul, can you do the
> CVS magic sometime soon?

Possibly tomorrow (Wed) AM

	-P




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"Carlos O'Donell Jr." writes...

> I was just looking to bounce some ideas off the list members.
> As an avid user, I was just musing to myself, how can I keep
> everything up to date (kernel/glibc/packages)?

apt-get upgrade

> Obviously the latest kernel/glibc/gcc... will reside in the
> CVS. It's a matter of slurping/building and testing on one
> of our boxen.

All of the binutils/gcc/glibc/palo changes are in the Debian packages in the 
archive. The kernel-image packages should go in soon, but you'll have to 
upgrade your kernel by hand for now.

> The packages are a slightly different matter. Is the 0.9.2
> iso the latest collection of packages?

No it is a snapshot in time of the Debian unstable archive. After installing 
you should apt-get upgrade to get the latest versions of the things you have 
installed. We'll update the packages on the next iso.

> Is anyone in debain-hppa compiling/testing packages?

Yes, lots of people are building and uploading Debian packages for hppa, 
including the Debian autobuilder that automatically attempts to build new 
debian source packages as they are uploaded. There are currently Debian 5747 
packages available for hppa (including the architecture indepenent ones).

> We have a cluster of 30x 715/50's running.
> And for one reason or another have not quite gotten the debian
> installer to run to completetion (nor can I spend the time to
> install on each node... that's what scripts and root tarballs
> are for).
> 
> Instead we have used the baseplus tar from sid to install the nodes.
> The only extra packages we required were NIS(yp*) and MPICH(1.2.1).

baseplus is really old. You should really use the Debian installer (or at 
least roll a new base tarball).

> I recently found though, that when compiling more complicated
> MPI programs, cc and ld start dropping SIG11's like there was
> no tommorow (more on this after I do some testing).

I wouldn't trust the old base tarball(or any system assembled by hand for that 
matter). Try a fresh install and post the results to the list.

> Is there a fundamental flaw in using sid's baseplus tarball for
> the 715/50 systems?

Yes, the old base tarball probably isn't total clean wrt the alignment needed 
for 715/50.

> Really, I'm just looking for a simple way to stay up to date
> with all the latest packages and kernel changes :)

man apt

Bdale's comments were good too.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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On Tue, Aug 14, 2001 at 03:40:37PM -0400, Carlos O'Donell Jr. wrote:
> Obviously the latest kernel/glibc/gcc... will reside in the
> CVS. It's a matter of slurping/building and testing on one
> of our boxen.

Actually, the debian glibc package has more uptodate bits than our CVS tree.

> The packages are a slightly different matter. Is the 0.9.2
> iso the latest collection of packages? Is anyone in debain-hppa
> compiling/testing packages?

we're compiling packages constantly.  we have a lack of testing though,
which is what we rely on people like you for :-)

> Instead we have used the baseplus tar from sid to install the nodes.
> The only extra packages we required were NIS(yp*) and MPICH(1.2.1).

We seem to have those compiled already in debian...

> I recently found though, that when compiling more complicated
> MPI programs, cc and ld start dropping SIG11's like there was
> no tommorow (more on this after I do some testing).

OK, I'd be interested to see more detail once we're sure you're on
an uptodate system.

> We were doing:
> 1- Unpack sid baseplus root tarball
> 2- x-compiled and installed NIS(yp*) and MPICH
> 3- Use this as my new root tarball for the rest of the cluster
> 
> Should I be doing:
> 
> 1- Unpack sid baseplus and export via nfs
> 2- Download latest debs and export via nfs
> 3- Boot "clone" box with nfs root
> 4- Point apt to the debs on the nfs share
> 5- Update packages like mad
> 6- Use "clone" as my new root tarball for the rest of the cluster

You should be doing:

Run debian installer to completion on one machine
apt-get dist-upgrade
apt-get install nis mpich
tar up / and copy it to all other machines

If the latest debian installer (never mind what's on the CDs) doesn't
work, then please report the problems.

-- 
Revolutions do not require corporate support.




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From: "Jaime Ash" <jaimeash@home.com>
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Subject: [parisc-linux] Creating the installation CD
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I am in the process of trying to upgrade my PA-Linux machine (model HP 715)
from version 0.6 to version 0.9.2, and also trying to install version 0.9.2
on an HP 735.

I have already extracted the file named "palinux-0.9.2.iso" from the
downloaded file, but I do not know how to proceed from there to create the
installation CD.  (Note that for version 0.6 I had used an installation CD
that I got from Grant Grundler, so I never learned how he created the CD,
and now he is on LOA).

So my question to you is, what is the process for going from the *.iso file
to create the CD.

Sincerely,

Jaime Ash
email: jaimeash@home.com




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"Jaime Ash" writes...

> So my question to you is, what is the process for going from the *.iso file
> to create the CD.

The file you grabbed is gzipped so you'll need to gunzip it first. Then use 
your favorite CD burning software to burn it as is. I use X-CD-Roast but you 
can even use MSWindows based programs (or so I've heard).

If you have problems booting, send the errors to the list.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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On Tue, Aug 14, 2001 at 02:04:38PM -0600, Paul Bame wrote:
> > I think we should plan to merge in 2.4.8 this week.  Paul, can you do the
> > CVS magic sometime soon?
> 
> Possibly tomorrow (Wed) AM

Sounds good to me -- there is one already applied patch (pci.txt), and
two failures -- Makefile (trivial) and include/linux/netdevice.h which
got fixed a different way upstream.

Other than that, there are no textual conflicts.  I guess we'll find out
tomorrow what architecture changes are needed (Alan tells me he suspects
none are needed).

-- 
Revolutions do not require corporate support.




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> > I recently found though, that when compiling more complicated
> > MPI programs, cc and ld start dropping SIG11's like there was
> > no tommorow (more on this after I do some testing).
> 
> OK, I'd be interested to see more detail once we're sure you're on
> an uptodate system.
> 
> Run debian installer to completion on one machine
> apt-get dist-upgrade
> apt-get install nis mpich
> tar up / and copy it to all other machines
> 
> If the latest debian installer (never mind what's on the CDs) doesn't
> work, then please report the problems.
>

Thanks for all the feedback.

In general, I don't want to submit a bugreport and have the
list say "That's already fixed in the latest updated package" :)

Which is the reason for my original post.

"How does one stay ontop of a _moving_ target 
 like the PARISC development team?"
- Anonymous Coward :)


I will try out the latest debain intaller and feedback to the list.

I'm currently running apt-get on one of our nodes, and trying
to get it to an updated state.

Hrm. apg-get segfaults randomly. 

If at first you don't succeed, run, run and run again
(until it stops segfaulting).

<Carlos looks at terminal>
Ohhhhh.... it's working!
And traveling through time as tar seems to be reminiscing about how
it's unpacking a file it hasn't made yet, because the obviously correct 
system clock has warned it against time travel :}

Ouch...

--------------
[Nearing the end of apt-get -f dist-update]

Writing passwd-file to /etc/passwd.upwd-write
Replacing "/etc/passwd" with "/etc/passwd.upwd-write"
Writing group-file to /etc/group.upwd-write
Replacing "/etc/group" with "/etc/group.upwd-write"
dpkg: error processing base-passwd (--configure):
 subprocess post-installation script returned error exit status 127
Errors were encountered while processing:
 base-passwd
E: Sub-process /usr/bin/dpkg returned an error code (1)

[So I run it again]

root@node10:/# apt-get -f dist-upgrade
Segmentation faultsts... 43%
root@node10:/# 

[Ouch...]
[With a dump in /var/log/messages]

[dmesg]

do_page_fault() pid=13164 command='apt-get' type=6 address=0x40040dd7
vm_start = 0x3ff13000, vm_end = 0x400a4000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111110000001111
r0-3	 00000000 000002f4 40040dd7 00022350
r4-7	 400c98e0 00022330 faf00948 faf00924
r8-11	 faf00958 00000001 0001dbe5 faf00888
r12-15	 faf00920 00000030 faf008b8 faf008b0
r16-19	 faf00760 faf008a4 faf00748 4030c57c
r20-23	 3ff13000 00000000 00000005 00000001
r24-27	 00000001 00190eb9 00000000 0001d900
r28-31	 3ff13000 00000000 faf00c80 4029fdab
sr0-3	 00000000 000002f4 00000000 000002f4
sr4-7	 000002f4 000002f4 000002f4 000002f4

IASQ: 000002f4 000002f4 IAOQ: 40040dd7 40040ddb
 IIR: 081c0254    ISR: 000002f4  IOR: 404a0004
ORIG_R28: 00190eb9

-------------

We're running a hand rolled:
Linux node10 2.4.0 #37 Tue Jul 17 22:33:26 EDT 2001 parisc unknown

This apt-update was done from a system based on the unstable
baseplus tar.

-------------

[However, I ran it again, like the good robot I am.]
[I kept running it infact, until I get int the following situation:]

root@node10:/# apt-get -f dist-upgrade
Reading Package Lists... Done
Building Dependency Tree... Done
Calculating Upgrade... Done
The following NEW packages will be installed:
  autoconf2.13 autotools-dev groff-base libdb3 
118 packages upgraded, 4 newly installed, 0 to remove and 0  not upgraded.
8 packages not fully installed or removed.
Need to get 1105kB/47.5MB of archives. After unpacking 6158kB will be used.
Do you want to continue? [Y/n] Y
Get:1 http://http.us.debian.org unstable/main dpkg 1.9.16 [1105kB]
Fetched 1105kB in 25s (42.7kB/s)                                                        
debconf: cannot preconfigure packages -- apt-utils is not installed
tar: ./conffiles: time stamp 2001-04-23 18:17:20 is 980225879 s in the future
tar: ./preinst: time stamp 1999-11-24 19:14:54 is 935650533 s in the future
tar: ./prerm: time stamp 1999-11-24 19:14:54 is 935650533 s in the future
tar: ./postinst: time stamp 2000-12-23 15:25:50 is 969764789 s in the future
tar: ./control: time stamp 2001-07-06 14:33:14 is 986606033 s in the future
(Reading database ... 17525 files and directories currently installed.)
Preparing to replace dpkg 1.8.3 (using .../archives/dpkg_1.9.16_hppa.deb) ...
Unpacking replacement dpkg ...
dpkg: error processing /var/cache/apt/archives/dpkg_1.9.16_hppa.deb (--unpack):
 trying to overwrite directory `/usr/share/locale/cs' in package texinfo with nondirectory
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/dpkg_1.9.16_hppa.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
root@node10:/# 

--------------


In light of these problems.

I think I'm going to:

- Build a newer kernel.
- Try the latest debian installer.
- Give apt another shot at upgrading the system.

--------------

[Musing]

I wonder if running the 715/50's as diskless nodes is as bad an
idea as I originally thought. Would 10Mbit switched be faster than
the 1gig SCSI drive? (HP C2247M1 0BW4)... probably not.

However, it would give us many more active nodes, since many of
our systems are just missing drives :}

Cheers,
Carlos.
-------------------------
Baldric Project
http://www.baldric.uwo.ca
-------------------------




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> I will try, but first i had to boot the machine over LAN, that's my problem
> at the moment.
> The RISC-Machine tells something like "Error: cannot load IPL, error
> detected. Bootprocess failed..."
> Perhaps you could help me, so i attach the bootptab and the dhcp-conf. Also
> attached are the daemon.log and output from tcpdump. Btw., gorilla is the
> server and mirage the client.
> I don't know what's wrong. 
> On the risc-machine i told him to boot from the lan.<hw-addr-server>.
> 

There should be nothing wrong with booting over the lan.

I did not receive any attachments with this email?

> Ack.

Cross compiling is really not all that bad 8)

> > Could you mount the 0.92 ISO on an x86-linux box and steal that kernel?
> > (there are probably several but just try the 32-bit ones.)
> I'll try. So, you mean i don't need the nfsroot-package named in Martin's
> HOWTO?

You can use it.

If you handroll a kernel with nfs-root parameters 
and setup an nfs share for you root, you
can boot without a disk onto the nfs-root.

What do you put on your nfs-root?:

- The unpacked nfsroot tarball
- sid baseplus tarball (under the debian directories).
- nothing (You get to check if the setup is okay, 
  though the kernel will panic when it doesn't find /)

Cheers,
Carlos.






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On Tue, Aug 14, 2001 at 09:50:30PM -0400, Carlos O'Donell Jr. wrote:
> In general, I don't want to submit a bugreport and have the
> list say "That's already fixed in the latest updated package" :)

That's fair enough.

> I'm currently running apt-get on one of our nodes, and trying
> to get it to an updated state.
> 
> Hrm. apg-get segfaults randomly. 

Yes, it does.  Until you've managed to get sully synced up to latest
toolchain/libs/kernel at which point, it magically stops.

> We're running a hand rolled:
> Linux node10 2.4.0 #37 Tue Jul 17 22:33:26 EDT 2001 parisc unknown

OK, you _definitely_ need to update this.  You could pull from CVS or
grab a snapshot tarball, see the webpages on how to do this.

> (Reading database ... 17525 files and directories currently installed.)
> Preparing to replace dpkg 1.8.3 (using .../archives/dpkg_1.9.16_hppa.deb) ...
> Unpacking replacement dpkg ...
> dpkg: error processing /var/cache/apt/archives/dpkg_1.9.16_hppa.deb (--unpack):
>  trying to overwrite directory `/usr/share/locale/cs' in package texinfo with nondirectory
> dpkg-deb: subprocess paste killed by signal (Broken pipe)

Umm.  That's rather interesting.  an excerpt from dpkg --listfiles dpkg
on paer.debian.org:

/usr/share/locale
/usr/share/locale/cs
/usr/share/locale/cs/LC_MESSAGES
/usr/share/locale/cs/LC_MESSAGES/dpkg.mo

I seem to remember someone saying this was a bug in an old version
of dpkg.  So one way around this may be to dpkg --remove texinfo, then
install dpkg, then install texinfo again.

-- 
Revolutions do not require corporate support.




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> > In general, I don't want to submit a bugreport and have the
> > list say "That's already fixed in the latest updated package" :)
> 
> That's fair enough.

Thanks for all the comments!

> 
> Yes, it does.  Until you've managed to get sully synced up to latest
> toolchain/libs/kernel at which point, it magically stops.
> 

Leading back to my reasoning at the start.
Things magically fix themselves when you get the latest package.
Atleast that's what the developers always say ;)

> > Linux node10 2.4.0 #37 Tue Jul 17 22:33:26 EDT 2001 parisc unknown
>
> OK, you _definitely_ need to update this.  You could pull from CVS or
> grab a snapshot tarball, see the webpages on how to do this.

True. Our nodes aren't running the latest kernel, but now that I see
the myriad of page_faults that many programs are causing, I will
be rolling a new one quite soon.

I had the auto-builder perl script working at one point.
Then I mucked about with it, broke it, and then never used it again.
I should get it going again, have been doing most of the kernel builds
by doing a quick CVS slurp and xcompile (Yes my PIII 450 is much
faster at compiling kernels ;) ... then again so is our newly acquired Dual
PIII 1.0GHz mmmmm.... -j16. god bless funding from the engineering
undergraduate society!)

> 
> I seem to remember someone saying this was a bug in an old version
> of dpkg.  So one way around this may be to dpkg --remove texinfo, then
> install dpkg, then install texinfo again.
>

I will try removing texinfo and then installing dpkg, and tell you 
if that was the fix.

TODO:

- Latest kernel.
- dpkg unintall-install-install.

Muchas gracias senores y senoras!

Cheers,
Carlos
--------------------------
Baldric Project
http://www.baldric.uwo.ca
--------------------------




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Jaime, 
 I use cdrecord and just cdrecord dev=0,6,0 speed=2 -eject file.iso but it
depends on your hardware as to the proper device if its scsi just  
cdrecord -scanbus and start from there. 

Hope I helped some. 
Terry

Achilles' Biological Findings:
        (1) If a child looks like his father, that's heredity.  If he
            looks like a neighbor, that's environment.
        (2) A lot of time has been wasted arguing over what came first
            -- the chicken or the egg.  It was undoubtedly the
            rooster.


On Tue, 14 Aug 2001, Jaime Ash wrote:

> I am in the process of trying to upgrade my PA-Linux machine (model HP 715)
> from version 0.6 to version 0.9.2, and also trying to install version 0.9.2
> on an HP 735.
> 
> I have already extracted the file named "palinux-0.9.2.iso" from the
> downloaded file, but I do not know how to proceed from there to create the
> installation CD.  (Note that for version 0.6 I had used an installation CD
> that I got from Grant Grundler, so I never learned how he created the CD,
> and now he is on LOA).
> 
> So my question to you is, what is the process for going from the *.iso file
> to create the CD.
> 
> Sincerely,
> 
> Jaime Ash
> email: jaimeash@home.com
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 






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On Sat, Aug 11, 2001 at 02:54:53PM +0800, Andrew Shugg wrote:
> Or less facetiously, is another CVS merge planned or are there problems
> in this release as with 2.4.7?  (Don't follow l-k and am just curious.)

Linux jagu 2.4.8-pa1 #9 Wed Aug 15 13:15:43 MDT 2001 parisc64 unknown           

*touch wood*, no new problems seem apparent.

-- 
Revolutions do not require corporate support.




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From: Chuck Slivkoff <charles_slivkoff@hp.com>
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Subject: [parisc-linux] XFree86 - white pixel is blue
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I just loaded the ISO on a 712/60 and setup XFree86 to use the fbdev
driver. It seems to be OK, with the exception that "white" is "blue". If
I xwd the root  window dump and examine it on another X display, it
looks fine.

I know the monitor and cable are good. Also, the "HP" logo seen at the
boot is displayed correctly as is the STI text. I dug through the
mailing list archive, but can't find a similar case. 

Has anyone else seen this or have a suggestion of how to resolve the
problem? 

I'm including my XF86Config-4 file below.

-chuck


Section "ServerLayout"
        Identifier      "Single Head"
        Screen          0               "Screen0"
        InputDevice     "Mouse0"        "CorePointer"
        InputDevice     "Keyboard0"     "CoreKeyboard"
EndSection

Section "Files"
        FontPath "/usr/lib/X11/fonts/misc:unscaled"
        FontPath "/usr/lib/X11/fonts/100dpi:unscaled"
        FontPath "/usr/lib/X11/fonts/Speedo"
        FontPath "/usr/lib/X11/fonts/Type1"
        FontPath "/usr/lib/X11/fonts/75dpi:unscaled"
EndSection


Section "InputDevice"
        Identifier  "Keyboard0"
        Driver      "keyboard"
        Option      "XkbLayout" "us"
EndSection

Section "InputDevice"
        Identifier  "Mouse0"
        Driver      "mouse"
        Option      "Device" "/dev/psaux"
        Option      "Protocol" "PS/2"
        Option      "Emulate3Buttons" "off"
EndSection

Section "Monitor"
        Identifier "HPM900"
        VendorName "Hewlett-Packard"
        ModelName  "Unknown"
        HorizSync 31-95
        VertRefresh 50-150
EndSection

Section "Device"
        Driver "fbdev"
        Identifier "FrameBuffer"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device "FrameBuffer"
        Monitor "HPM900"
        Subsection "Display"
                Depth 8
                Modes "1280x1024"
        EndSubSection
EndSection




From - Thu Nov 08 21:18:50 2018
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A few conflicts:

Documentation/parisc/mm got deleted -- we already did this.
Makefile -- obvious conflict
arch/parisc/hpux/fs.c -- off_t changes to loff_t; we added an extra param, which is why upstream's patch doesn't apply.
drivers/char/tty_io.c -- part of our tree got applied
drivers/net/lasi_82596.c -- looks like changes from our tree, someone should check this properly.
drivers/sound/Makefile -- probably trivial haven't looked properly
drivers/video/fbcon-sti.c -- hunk #2 has already been done.
drivers/video/sticon-bmode.c -- now irrelevant
drivers/video/sticore.c -- ditto

that's it.

-- 
Revolutions do not require corporate support.




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Hello to all on this group.  I'm sitting here working on some FreeBSD 
stuff
and there is a guy in the complex named Paul.  Seems Pman is into the 
PaRisc Linux
port heavy duty, and such recommended that I show my interest for 
donated lowend
HPPA Risc hardware by offering to help on the project, and maybe someone 
locally
in the Ft Fun area (or nearby) would have a 712/80 or 715/100 or 
whatever to use
to work on optimizational work on the kernel or otherwise.  My question 
is this, I
don't want something for nothing, I'm ready to put a bit of fun 
contributional work to good
use and help, in something I enjoy.  I'm busy on other stuff 40+ hours a 
week and
enjoy that very much.  I'm able to contribute for 1.25 months at the 
most, would like
to do something like opti work, or testing or whatever that is going to 
help the project
that I can do, understand and have an intest.  I think and believe I 
need a system
here first, that would help surely.  To all, my question is this, who do 
I talk to about
getting a decent machine and monitor, mouse and keybaord for loan or 
donate tome
for this work to be done?  Thanks!

\t
---
Todd Nathan
SenseTalk(tm) Guy
Back On Solid Ground




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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.9 merge
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On Fri, Aug 17, 2001 at 01:30:14AM +0100, Matthew Wilcox wrote:
> 
> A few conflicts:

Conflicts resolved...

2.4.9 adds the new kbd_rate method.  Currently this is defined as a
dummy op.  If you want to define it in your keyboard driver, go ahead.
I have 2.4.9-pa1 compiled; if it boots, I will commit it.

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <willy@ldl.fc.hp.com>
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Subject: [parisc-linux] Turn off CONFIG_PCI
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A number of people have been asking for the ability to turn off CONFIG_PCI,
and while I was reviewing the outstanding diff vs 2.4.9, I noticed I could
take out some of the patch if I just made some slight alterations.  Please
test this patch; it compiles for me.

Index: drivers/char/serial.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/char/serial.c,v
retrieving revision 1.25
diff -u -p -r1.25 serial.c
--- serial.c	2001/08/17 06:10:06	1.25
+++ serial.c	2001/08/17 07:06:02
@@ -414,11 +414,7 @@ static _INLINE_ unsigned int serial_in(s
 		return readb((unsigned long) info->iomem_base +
 			     (offset<<info->iomem_reg_shift));
 	default:
-#if defined(CONFIG_PCI) || defined(CONFIG_ISA)
 		return inb(info->port + offset);
-#else
-		BUG();
-#endif
 	}
 }
 
@@ -437,11 +433,7 @@ static _INLINE_ void serial_out(struct a
 			      (offset<<info->iomem_reg_shift));
 		break;
 	default:
-#if defined(CONFIG_PCI) || defined(CONFIG_ISA)
 		outb(value, info->port+offset);
-#else
-		BUG();
-#endif
 	}
 }
 
Index: include/asm-parisc/io.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/io.h,v
retrieving revision 1.22
diff -u -p -r1.22 io.h
--- io.h	2001/07/15 22:30:29	1.22
+++ io.h	2001/08/17 07:06:03
@@ -43,9 +43,6 @@
 #endif /* USE_HPPA_IOREMAP */
 
 #if defined(CONFIG_PCI) || defined(CONFIG_ISA)
-/*
- *	So we get clear link errors 
- */
 extern unsigned char inb(unsigned long addr);
 extern unsigned short inw(unsigned long addr);
 extern unsigned int inl(unsigned long addr);
@@ -53,7 +50,28 @@ extern unsigned int inl(unsigned long ad
 extern void outb(unsigned char b, unsigned long addr);
 extern void outw(unsigned short b, unsigned long addr);
 extern void outl(unsigned int b, unsigned long addr);
+#else
+static inline char inb(unsigned long addr)
+{
+	BUG();
+	return -1;
+}
 
+static inline short inw(unsigned long addr)
+{
+	BUG();
+	return -1;
+}
+
+static inline int inl(unsigned long addr)
+{
+	BUG();
+	return -1;
+}
+
+#define outb(x, y)	BUG()
+#define outw(x, y)	BUG()
+#define outl(x, y)	BUG()
 #endif
 
 extern void memcpy_fromio(void *dest, unsigned long src, int count);




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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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> 
> /usr/share/locale
> /usr/share/locale/cs
> /usr/share/locale/cs/LC_MESSAGES
> /usr/share/locale/cs/LC_MESSAGES/dpkg.mo
> 
> I seem to remember someone saying this was a bug in an old version
> of dpkg.  So one way around this may be to dpkg --remove texinfo, then
> install dpkg, then install texinfo again.
>

I tried removing texinfo. Sadly, what proceeds to occur is a 
relative chain of packages that continually depend on 
/usr/share/locale/cs, all the way down to 'tar.' At which point
I had lost most of my system functionality and was scp'ing 
binaries into /bin to keep it alive.

A fruitless effort, but interesting none the less. ;)

When I get home tonight I'll roll a new kernel and do more testing.

How does the installer get around this problem?
Since it too must start with a base system?
(Maybe it's just my misunderstanding of the complete inner workings
of hte installer).

Cheers,
Carlos.


 




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From: "Jaime Ash" <jaimeash@home.com>
Newsgroups: gmane.linux.ports.parisc
Subject: FW: [parisc-linux] Creating the installation CD
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I finally succeeded in recording a CD using MSWindows and Easy CD Creator,
but I am
having a lot of problems trying to install version 0.9.2 on my HP 715 W/S.
The problems
I have encountered so far are:

1. The first step in the installation menus (Configure the Keyboard) doesn't
seem to work:
after I followed its first 2 or 3 instructions (choosing US QWERTY keyboard)
the keyboard arrows
and the Return key stop functioning normally (or sometimes don't work at
all).

2. If I skip the first step and go on to and complete Partition a Hard Disk
(selecting my
/dev/sdb drive, since my sda boots HPUX) I am able to complete successfully
the following
five steps:
	Initialize and Activate a Swap Partition
	Initialize a Linux Partition (I did this to /dev/sdb3 and /dev/sdb4)
	Install Operating System Kernel and Modules
	Configure Device Driver Modules (I did kernel/fs/fat, kernel/fs/msdos and
kernel/fat/nfsd)
	Configure the Network

But, I am having trouble with the step "Install the Base System":  When I
try to follow this step,
choose CD-ROM drive and press Continue I get the message "The CD-ROM was not
mounted successfully".
If I press again Continue and attempt again to do "Install the Base System",
I then get to a point
where I am asked to choose a directory.  If I click OK (without choosing
anything; i.e. with the
choice field all blue) it asks me to "Select an Archive path" and shows a
default of /insmnt. If I
press Return, I get an "Important Note" telling me to install the 'testing'
distribution (woody)
rather than sid.  If I then hit continue, I am presented with 2 choices:
	testing: 'woody' - Debian Testing - Not Released
and 	unstable: 'sid' - Debian Unstable - Not Released

If I choose 'woody', I get an Error message: Failed getting release file
	file: /instmnt/dists/woody/Release
If I try the second ('sid') I am given a Warning that this is an unstable
distribution, has Major
bugs and the default is do not install.

I have then tried many times to repeat "Install the Base System", searching
for the correct
directory within the installation CD that has the Release version of the
0.9.2 PALINUX without
success: no matter where I look within the CD I am always presented with the
same 2 choices:
	testing: 'woody' - Debian Testing - Not Released
and 	unstable: 'sid' - Debian Unstable - Not Released

I finally decided to ignore the Warning and I succeeded at installing the
unstable 'sid' version,
except that at some point in the installation process I got the Warning:
"Creating empty exim.conf
so exim installs okay".  At a later point in the installation process I am
given the default choice
of Make the System Bootable, and if I choose that, I then get the choices:
	Next	   : Make a boot Floppy
and	Alternate: Reboot the System

If I choose the first, I get a message that there is a Problem and asked to
check if the floppy is
write-protected (which it is not) or that I put it in the first (?) (Do you
mean to check if the
floppy is in the drive, before clicking the first choice "Make a boot
Floppy"?)  That's what I did,
but it didn't work.

I then chose the second: "Reboot the System" and I was able to boot OK to
the Debian System Configuration
screen (except that I randomly get the following messages:
	ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
	skb: pf=2 (unowned) dev=lo len=328
	PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16

I was then able to successfully go through most of the Debian System
Configuration screens until I got
to the Apt Configuration, where I got the message "Cannot access security
updates" on security.debian.org.

After choosing Continue, I was able to complete the installation and I am
able to log in as root.
But, I still get the same random messages:
	ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
	skb: pf=2 (unowned) dev=lo len=328
	PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16

One other thing I noticed is that, even though I had assigned the address
192.168.1.205 to my workstation
(and I chose not to use DHCP), I found out that the machine'd address was
instead 192.168.1.102, and I think
that it is using DHCP.  (How can I verify this?)

So my question is how do I install the Release version of the 0.9.2 PALINUX?


-----Original Message-----
From: Matt Taggart [mailto:taggart@carmen.fc.hp.com]
Sent: Tuesday, August 14, 2001 5:17 PM
To: Jaime Ash
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Creating the installation CD



"Jaime Ash" writes...

> So my question to you is, what is the process for going from the *.iso
file
> to create the CD.

The file you grabbed is gzipped so you'll need to gunzip it first. Then use
your favorite CD burning software to burn it as is. I use X-CD-Roast but you
can even use MSWindows based programs (or so I've heard).

If you have problems booting, send the errors to the list.

--
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



-----Original Message-----
From: jaimeash@home.com
To: parisc-linux@lists.parisc-linux.org
Subject: Creating the installation CD


I am in the process of trying to upgrade my PA-Linux machine (model HP 715)
from version 0.6 to version 0.9.2, and also trying to install version 0.9.2
on an HP 735.

I have already extracted the file named "palinux-0.9.2.iso" from the
downloaded file, but I do not know how to proceed from there to create the
installation CD.  (Note that for version 0.6 I had used an installation CD
that I got from Grant Grundler, so I never learned how he created the CD,
and now he is on LOA).

So my question to you is, what is the process for going from the *.iso file
to create the CD.

Sincerely,

Jaime Ash
email: jaimeash@home.com





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From: caslivkoff@yahoo.com
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Subject: Re: [Xpert][parisc-linux] white is blue
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To: Michel =?iso-8859-1?Q?D=E4nzer?= <michdaen@iiic.ethz.ch>
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[[ I'm cross-posting this to both mailing lists.  ]]
[[ Someone let me know if this is a problem.      ]]

Michel D=E4nzer wrote:
> =

> caslivkoff@yahoo.com wrote:
> =

> > I posted this to the parisc-linux mailing list, but so far, no
> > responses. Can anyone offer a suggestion? The fbdev driver is "suppos=
ed"
> > to work with the graphics in the 712/60. I also tried this on a secon=
d
> > 712 with the same behavior. What's wierd is that other colors appear =
OK.
> > I'm attaching the XFree86.0.log.
> >
> > -----------------------------------------------------
> >
> > I just loaded the ISO on a 712/60 and setup XFree86 to use the fbdev
> > driver. It seems to be OK, with the exception that "white" is "blue".=
 If
> > I xwd the root  window dump and examine it on another X display, it
> > looks fine.
> =

> The fbdev driver uses the framebuffer device to set the colormap, which=
 works
> in general (at least for me ;), so I suspect there is a problem with th=
e
> framebuffer device.

That's what I though too, but I've tried this on 2 different 712's and
have the same behavior. What is strange is that the framebuffer can
display white text with no problem on the console (the default cursor is
white). Also, under X, specifying #fefefe shows up as "almost white".

Any other ideas?  I thought that possibly the rgb.txt was not getting
loaded, but I'm fairly certain that it is.

_________________________________________________________
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Get your free @yahoo.com address at http://mail.yahoo.com





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From: Michel =?iso-8859-1?Q?D=E4nzer?= <michdaen@iiic.ethz.ch>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [Xpert][parisc-linux] white is blue
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caslivkoff@yahoo.com wrote:

> Michel Dnzer wrote:
> >
> > caslivkoff@yahoo.com wrote:
> >
> > > I posted this to the parisc-linux mailing list, but so far, no
> > > responses. Can anyone offer a suggestion? The fbdev driver is "supposed"
> > > to work with the graphics in the 712/60. I also tried this on a second
> > > 712 with the same behavior. What's wierd is that other colors appear OK.
> > > I'm attaching the XFree86.0.log.
> > >
> > > -----------------------------------------------------
> > >
> > > I just loaded the ISO on a 712/60 and setup XFree86 to use the fbdev
> > > driver. It seems to be OK, with the exception that "white" is "blue". If
> > > I xwd the root  window dump and examine it on another X display, it
> > > looks fine.
> >
> > The fbdev driver uses the framebuffer device to set the colormap, which
> > works in general (at least for me ;), so I suspect there is a problem with
> > the framebuffer device.
> 
> That's what I though too, but I've tried this on 2 different 712's and
> have the same behavior.

But I assume you use the same framebuffer device on both? (Note that when I
say framebuffer device, I refer to the Linux kernel driver)

> What is strange is that the framebuffer can display white text with no
> problem on the console (the default cursor is white). Also, under X,
> specifying #fefefe shows up as "almost white".

There are no known problems with the XFree86 fbdev colormap handling, but
maybe you have found one... :)


> Any other ideas?  I thought that possibly the rgb.txt was not getting
> loaded, but I'm fairly certain that it is.

You can easily check with grep -i rgb /var/log/XFree86.0.log .


-- 
Earthling Michel Dnzer (MrCooper)    \   Debian GNU/Linux (powerpc) developer
CS student, Free Software enthusiast   \        XFree86 and DRI project member




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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Turn off CONFIG_PCI
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Xref: news.gmane.org gmane.linux.ports.parisc:11909

Hi Matthew,

I tested your patch sucessfully on my c3k and my 715/64.
I've only added a small security check to setup.c to prevent PA2.x machines
from booting without CONFIG_PCI and to print a small panic-message
at bootup instead of just HPMC'ing.
Please commit if nobody else complains, 

Greetings,
Helge

Index: linux/arch/parisc/kernel/setup.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/setup.c,v
retrieving revision 1.88
diff -u -r1.88 setup.c
--- setup.c	2001/08/16 20:57:18	1.88
+++ setup.c	2001/08/18 19:21:47
@@ -401,6 +401,18 @@
 	cache_init();
 	paging_init();
 
+#ifndef CONFIG_PCI
+	/* security check: PA2.x processor machines won't detect their main
+	 * PCI-based devices (screen, serial, SCSI, ...), so it's better to
+	 * stop them from booting right here. If we would continue we would
+	 * only get a HPMC without any other information. */
+	if (boot_cpu_data.cpu_type >= pcxu) { /* >=PA8000 (PCX-U) CPU ? */
+		/* switch back to PDC console for panic */
+		pdc_console_restart();
+		panic("This system will not boot without PCI-support in the kernel !\n");
+	}
+#endif
+	
 #ifdef CONFIG_CHASSIS_LCD_LED
 	/* initialize the LCD/LED after boot_cpu_data is available ! */
         led_init();				/* LCD/LED initialization */
Index: linux/drivers/char/serial.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/char/serial.c,v
retrieving revision 1.25
diff -u -r1.25 serial.c
--- serial.c	2001/08/17 06:10:06	1.25
+++ serial.c	2001/08/18 19:21:56
@@ -414,11 +414,7 @@
 		return readb((unsigned long) info->iomem_base +
 			     (offset<<info->iomem_reg_shift));
 	default:
-#if defined(CONFIG_PCI) || defined(CONFIG_ISA)
 		return inb(info->port + offset);
-#else
-		BUG();
-#endif
 	}
 }
 
@@ -437,11 +433,7 @@
 			      (offset<<info->iomem_reg_shift));
 		break;
 	default:
-#if defined(CONFIG_PCI) || defined(CONFIG_ISA)
 		outb(value, info->port+offset);
-#else
-		BUG();
-#endif
 	}
 }
 
Index: linux/include/asm-parisc/io.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/io.h,v
retrieving revision 1.22
diff -u -r1.22 io.h
--- io.h	2001/07/15 22:30:29	1.22
+++ io.h	2001/08/18 19:22:08
@@ -43,9 +43,6 @@
 #endif /* USE_HPPA_IOREMAP */
 
 #if defined(CONFIG_PCI) || defined(CONFIG_ISA)
-/*
- *	So we get clear link errors 
- */
 extern unsigned char inb(unsigned long addr);
 extern unsigned short inw(unsigned long addr);
 extern unsigned int inl(unsigned long addr);
@@ -53,7 +50,28 @@
 extern void outb(unsigned char b, unsigned long addr);
 extern void outw(unsigned short b, unsigned long addr);
 extern void outl(unsigned int b, unsigned long addr);
+#else
+static inline char inb(unsigned long addr)
+{
+	BUG();
+	return -1;
+}
 
+static inline short inw(unsigned long addr)
+{
+	BUG();
+	return -1;
+}
+
+static inline int inl(unsigned long addr)
+{
+	BUG();
+	return -1;
+}
+
+#define outb(x, y)	BUG()
+#define outw(x, y)	BUG()
+#define outl(x, y)	BUG()
 #endif
 
 extern void memcpy_fromio(void *dest, unsigned long src, int count);




On Friday 17 August 2001 09:11, Matthew Wilcox wrote:
> A number of people have been asking for the ability to turn off CONFIG_PCI,
> and while I was reviewing the outstanding diff vs 2.4.9, I noticed I could
> take out some of the patch if I just made some slight alterations.  Please
> test this patch; it compiles for me.
>
... <original patch deleted>...





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From: Helge Deller <deller@gmx.de>
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Subject: Re: [Xpert][parisc-linux] white is blue
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> > That's what I though too, but I've tried this on 2 different 712's and
> > have the same behavior.
>
> But I assume you use the same framebuffer device on both? (Note that when I
> say framebuffer device, I refer to the Linux kernel driver)

Both 712 have the same Graphics chip ("Artist") and use the same stifb driver (it's 
also the only one which supports HP's build-in graphics atm).

> > What is strange is that the framebuffer can display white text with no
> > problem on the console (the default cursor is white). Also, under X,
> > specifying #fefefe shows up as "almost white".
>
> There are no known problems with the XFree86 fbdev colormap handling, but
> maybe you have found one... :)

This is definitively a bug in the linux kernel stifb driver.
I wrote (migrated) most parts of this stifb driver and it works perfectly without any
color-problems together with the XFree86 fbdev driver here on my 715/64. 
The 715/64 has the Artist graphics chip too, so I suspect we just need some more 
initialization for the "older revisions" of the Artist chip in the 712 machines.

Greetings,
Helge




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Subject: Re: [Xpert][parisc-linux] white is blue
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On Sat, 18 Aug 2001 caslivkoff@yahoo.com wrote:
> > > I posted this to the parisc-linux mailing list, but so far, no
> > > responses. Can anyone offer a suggestion? The fbdev driver is "suppos=
ed"
> > > to work with the graphics in the 712/60. I also tried this on a secon=
d
> > > 712 with the same behavior. What's wierd is that other colors appear =
OK.
> > >
> > > I just loaded the ISO on a 712/60 and setup XFree86 to use the fbdev
> > > driver. It seems to be OK, with the exception that "white" is "blue".=
 If

> Michel D=E4nzer wrote:
> > The fbdev driver uses the framebuffer device to set the colormap, which=
 works
> > in general (at least for me ;), so I suspect there is a problem with th=
e
> > framebuffer device.

> Any other ideas?  I thought that possibly the rgb.txt was not getting
> loaded, but I'm fairly certain that it is.

It does sound as though the active colormap isn't being initialized fully.
Does the 712/60 have more than one colormap ?

--=20
Dr. Andrew C. Aitchison=09=09Computer Officer, DPMMS, Cambridge
A.C.Aitchison@dpmms.cam.ac.uk=09http://www.dpmms.cam.ac.uk/~werdna






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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Turn off CONFIG_PCI
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On Sat, Aug 18, 2001 at 09:37:06PM +0200, Helge Deller wrote:
> I tested your patch sucessfully on my c3k and my 715/64.
> I've only added a small security check to setup.c to prevent PA2.x machines
> from booting without CONFIG_PCI and to print a small panic-message
> at bootup instead of just HPMC'ing.

> +#ifndef CONFIG_PCI
> +	/* security check: PA2.x processor machines won't detect their main
> +	 * PCI-based devices (screen, serial, SCSI, ...), so it's better to
> +	 * stop them from booting right here. If we would continue we would
> +	 * only get a HPMC without any other information. */
> +	if (boot_cpu_data.cpu_type >= pcxu) { /* >=PA8000 (PCX-U) CPU ? */
> +		/* switch back to PDC console for panic */
> +		pdc_console_restart();
> +		panic("This system will not boot without PCI-support in the kernel !\n");
> +	}
> +#endif

I don't believe this is appropriate.  Cxxx / Jxxx machines use Lasi for
their serial port, so it's theoretically possible to boot one without
CONFIG_PCI.  If the user wants to turn it off, let them.  It's not like
any other architecture does anything like this.

-- 
Revolutions do not require corporate support.




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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Turn off CONFIG_PCI
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On Sunday 19 August 2001 00:37, Matthew Wilcox wrote:
> On Sat, Aug 18, 2001 at 09:37:06PM +0200, Helge Deller wrote:
> > I tested your patch sucessfully on my c3k and my 715/64.
> > I've only added a small security check to setup.c to prevent PA2.x
> > machines from booting without CONFIG_PCI and to print a small
> > panic-message at bootup instead of just HPMC'ing.
> >
> > +#ifndef CONFIG_PCI
> > +	/* security check: PA2.x processor machines won't detect their main
> > +	 * PCI-based devices (screen, serial, SCSI, ...), so it's better to
> > +	 * stop them from booting right here. If we would continue we would
> > +	 * only get a HPMC without any other information. */
> > +	if (boot_cpu_data.cpu_type >= pcxu) { /* >=PA8000 (PCX-U) CPU ? */
> > +		/* switch back to PDC console for panic */
> > +		pdc_console_restart();
> > +		panic("This system will not boot without PCI-support in the kernel
> > !\n"); +	}
> > +#endif
>
> I don't believe this is appropriate.  Cxxx / Jxxx machines use Lasi for
> their serial port, so it's theoretically possible to boot one without
> CONFIG_PCI.  If the user wants to turn it off, let them.  It's not like
> any other architecture does anything like this.

Sure, Cxxx and Jxxx may have LASI, but if I'm correct they all have a 32bit PA7XXX 
CPU and thus won't be catched by this check.
Machines with a PA8XXX CPU don't have any LASI/GSC devices and would _always_ 
HPMC without PCI support. So I still think it is better to panic() with a nice message 
instead of just let the user guess why the machine suddenly HPMC'ed with this kernel 
and start asking on the parisc-linux list.
  
Helge




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Subject: Re: [parisc-linux] Turn off CONFIG_PCI
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Cc: Matthew Wilcox <willy@debian.org>,
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To: Helge Deller <deller@gmx.de>
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On Sun, Aug 19, 2001 at 12:59:41AM +0200, Helge Deller wrote:
> Sure, Cxxx and Jxxx may have LASI, but if I'm correct they all have a 32bit PA7XXX 
> CPU and thus won't be catched by this check.

Nope, C200+, C240+, C360 (and equivalent J class) all have PA8x00 CPUs.

> Machines with a PA8XXX CPU don't have any LASI/GSC devices and would _always_ 
> HPMC without PCI support. So I still think it is better to panic() with a nice message 
> instead of just let the user guess why the machine suddenly HPMC'ed with this kernel 
> and start asking on the parisc-linux list.

Everyone who's asked about compilng a kernel with CONFIG_PCI off has had a
715/712-era machine.  I don't think people with PCI slots will turn it off.

-- 
Revolutions do not require corporate support.




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Subject: Re: [Xpert][parisc-linux] white is blue
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Dr Andrew C Aitchison wrote:
> 
> It does sound as though the active colormap isn't being initialized fully.
> Does the 712/60 have more than one colormap ?

Actually, yes. The Artist (in all 712's, some 715's and some 725's) has
2 colormaps.

_________________________________________________________
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From: Timothy Ball <timball@tux.org>
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Subject: [parisc-linux] Keyboard on 712/60 and X
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When I start up X white is also replaced for blue, but I can't tell if
rebooting to the new 2.4.9-pa2 kernel I got from the cvs fixes anything
cause I can't type anything to the console... I know there was a patch
to fix the keyboard issues for the BXXX and CXXX hp's but I do know know
if this will fix my issue...

--timball

-- 
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pub  1024R/CFF85605 1999-06-10 Timothy L. Ball <timball@sheergenius.com>
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Subject: Re: [parisc-linux] Keyboard on 712/60 and X
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On Sun, Aug 19, 2001 at 01:00:38AM -0400, Timothy Ball wrote:
> When I start up X white is also replaced for blue, but I can't tell if
> rebooting to the new 2.4.9-pa2 kernel I got from the cvs fixes anything
> cause I can't type anything to the console... I know there was a patch
> to fix the keyboard issues for the BXXX and CXXX hp's but I do know know
> if this will fix my issue...
> 

Well I found a workaround while playing w/ the blue looking X session...
If I start an app that needs to allocate it's own colormap (xgalaga for
example), when the app exits all the colors look right.

I don't know what that means. But I figure that someone can use that bit
of info to figure out a proper solution to this bug. In the mean time I
guess I'll be playing a lot more xgalaga... which is exactly what I
didn't need.

--timball

-- 
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Subject: [parisc-linux] [palinux-0.9.2] Where are the compilers (c, c++) ?
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Hi folks !

After successfully installing palinux-0.9.2 on my 715/64
I'm looking for the compilers (c, c++) ...

At present I'm not able to build a new kernel or utilities
from their source code :-(

During the installation process I choose something like

task-devel-common
task-c
task-c++

According to dselect- and dpkg-inquiries several packages
I would suggest to install for a C development enviroment
were installed after the base installation was completed.

What was surprising me is that '/usr/bin/cc' was a symbolic
link to '/etc/alternatives/cc' which again was a symbolic
link to the missing 'cc.1.gz' (seems to be a man page ...
!?!). '/usr/bin/gcc' was a link to the missing 'gcc-3.0'

After removing the false symbolic links and (symbolic)
linking 'hppa64-linux-gcc' to 'gcc' and 'cc' I could get
at least a more or less valid 'cc -v' output.

The compilation of the well known trivial 'hello.c' led
to the message that 'stdio.h' could not been found.

Afterwards I tried to install some packages out of the
'more_packages'-folder by hand using dpkg. I tried it in
several different sequences but wihtout success.

Enclodes some 'dpkg --info' outputs, which are somewhat
confusing (at least for me at present ... :-)

----- 8< ----- 8< ----- 8< ----- 8< ----- 8< -----

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info ../base/gcc-3.0-base_1\:3.0-1_all.deb
 new debian package, version 2.0.
 size 34502 bytes: control archive= 801 bytes.
     376 bytes,    11 lines      control
     377 bytes,     5 lines      md5sums
     273 bytes,     8 lines   *  postinst             #!/bin/sh
     202 bytes,     6 lines   *  prerm                #!/bin/sh
 Package: gcc-3.0-base
 Version: 1:3.0-1
 Section: devel
 Priority: standard
 Architecture: all
 Installed-Size: 43
 Maintainer: Debian GCC maintainers 
<debian-gcc@lists.debian.org>
 Source: gcc-3.0 (3.0.ds9-1)
 Description: The GNU compiler collection (base package).
  This package contains files common to all languages and 
libraries
  contained in the GNU compiler collection (gcc).

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info 
binutils-hppa64_2.11.90.0.7-2.0.0.1_hppa.deb
 new debian package, version 2.0.
 size 6386660 bytes: control archive= 1739 bytes.
     377 bytes,    11 lines      control
    2980 bytes,    44 lines      md5sums
     285 bytes,     8 lines   *  postinst             #!/bin/sh
     208 bytes,     6 lines   *  prerm                #!/bin/sh
 Package: binutils-hppa64
 Version: 2.11.90.0.7-2.0.0.1
 Section: alien
 Priority: extra
 Architecture: hppa
 Depends: libc6 (>= 2.2.3-1)
 Installed-Size: 17028
 Maintainer: Matt Taggart <matt@lackof.org>
 Description: Cross binutils for hppa64
  These programs are used when cross compiling anything for 
hppa64, currently
  the only thing you'd want to build is the hppa64 linux kernel.

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info binutils_2.11.90.0.7-2.0.1_hppa.deb
 new debian package, version 2.0.
 size 1423686 bytes: control archive= 2969 bytes.
     547 bytes,    15 lines      control
    4086 bytes,    65 lines      md5sums
     866 bytes,    39 lines   *  postinst             #!/bin/sh
     202 bytes,    10 lines   *  prerm                #!/bin/sh
      60 bytes,     2 lines      shlibs
 Package: binutils
 Version: 2.11.90.0.7-2.0.1
 Section: devel
 Priority: standard
 Architecture: hppa
 Depends: libc6 (>= 2.2.3-1)
 Suggests: binutils-doc (= 2.11.90.0.7-2.0.1)
 Conflicts: gas, elf-binutils
 Provides: elf-binutils
 Installed-Size: 2940
 Maintainer: Matt Taggart <matt@lackof.org>
 Description: The GNU assembler, linker and binary utilities.
  The programs in this package are used to assemble, link and 
manipulate
  binary and object files.  They may be used in conjunction 
with a compiler
  and various libraries to build programs for Linux.

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info cpp_3.0-6_hppa.deb
 new debian package, version 2.0.
 size 2998 bytes: control archive= 747 bytes.
     380 bytes,    13 lines      control
     200 bytes,     3 lines      md5sums
     237 bytes,     8 lines   *  postinst             #!/bin/sh
     184 bytes,     6 lines   *  prerm                #!/bin/sh
 Package: cpp
 Version: 2:3.0-6
 Section: interpreters
 Priority: standard
 Architecture: hppa
 Depends: cpp-3.0
 Installed-Size: 60
 Maintainer: Debian GCC maintainers 
<debian-gcc@lists.debian.org>
 Source: gcc-defaults (0.11)
 Description: The GNU C preprocessor.
  The default GNU preprocessor for Debian GNU/Linux systems.
  .
  This is currently version 3.0 for this architecture (hppa).

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info gcc-3.0-base_3.0-3_all.deb
 new debian package, version 2.0.
 size 34396 bytes: control archive= 767 bytes.
     376 bytes,    11 lines      control
     303 bytes,     4 lines      md5sums
     273 bytes,     8 lines   *  postinst             #!/bin/sh
     202 bytes,     6 lines   *  prerm                #!/bin/sh
 Package: gcc-3.0-base
 Version: 1:3.0-3
 Section: devel
 Priority: standard
 Architecture: all
 Installed-Size: 42
 Maintainer: Debian GCC maintainers 
<debian-gcc@lists.debian.org>
 Source: gcc-3.0 (3.0.ds9-3)
 Description: The GNU compiler collection (base package).
  This package contains files common to all languages and 
libraries
  contained in the GNU compiler collection (gcc).

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info gcc-hppa64_3.0-0pre010427.0.0.1_hppa.deb
 new debian package, version 2.0.
 size 2983800 bytes: control archive= 1382 bytes.
     382 bytes,    11 lines      control
    1930 bytes,    25 lines      md5sums
     265 bytes,     8 lines   *  postinst             #!/bin/sh
     198 bytes,     6 lines   *  prerm                #!/bin/sh
 Package: gcc-hppa64
 Version: 3.0-0pre010427.0.0.1
 Section: alien
 Priority: extra
 Architecture: hppa
 Depends: libc6 (>= 2.2.3-1), binutils-hppa64
 Installed-Size: 7680
 Maintainer: Matt Taggart <matt@lackof.org>
 Description: Cross gcc for hppa64
  This compiler is used when cross compiling anything for 
hppa64, currently
  the only thing you'd want to build is the hppa64 linux kernel.

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info gcc_3.0-6_hppa.deb
 new debian package, version 2.0.
 size 3222 bytes: control archive= 901 bytes.
     457 bytes,    16 lines      control
     108 bytes,     2 lines      md5sums
     395 bytes,    16 lines   *  postinst             #!/bin/sh
     126 bytes,     6 lines   *  preinst              #!/bin/sh
     274 bytes,    14 lines   *  prerm                #!/bin/sh
 Package: gcc
 Version: 2:3.0-6
 Section: devel
 Priority: standard
 Architecture: hppa
 Depends: cpp (>= 2:3.0-6), gcc-3.0, cpp-3.0
 Recommends: libc-dev
 Suggests: task-c-dev
 Provides: c-compiler
 Installed-Size: 52
 Maintainer: Debian GCC maintainers 
<debian-gcc@lists.debian.org>
 Source: gcc-defaults (0.11)
 Description: The GNU C compiler.
  The default GNU C compiler for Debian GNU/Linux systems.
  .
  This is currently version 3.0 for this architecture (hppa).

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info g++_3.0-6_hppa.deb
 new debian package, version 2.0.
 size 1192 bytes: control archive= 748 bytes.
     444 bytes,    15 lines      control
     398 bytes,    15 lines   *  postinst             #!/bin/sh
     275 bytes,    14 lines   *  prerm                #!/bin/sh
 Package: g++
 Version: 2:3.0-6
 Section: devel
 Priority: standard
 Architecture: hppa
 Depends: cpp (>= 2:3.0-6), g++-3.0, gcc-3.0
 Suggests: task-c++-dev
 Provides: c++-compiler
 Installed-Size: 40
 Maintainer: Debian GCC maintainers 
<debian-gcc@lists.debian.org>
 Source: gcc-defaults (0.11)
 Description: The GNU C++ compiler.
  The default GNU C++ compiler for Debian GNU/Linux systems.
  .
  This is currently version 3.0 for this architecture (hppa).

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info gdb-hppa_5.0-4.pehc.2_hppa.deb
 new debian package, version 2.0.
 size 1238264 bytes: control archive= 791 bytes.
     390 bytes,    11 lines      control
     246 bytes,     4 lines      md5sums
     257 bytes,     8 lines   *  postinst             #!/bin/sh
     194 bytes,     6 lines   *  prerm                #!/bin/sh
 Package: gdb-hppa
 Version: 5.0-4.pehc.2
 Section: alien
 Priority: extra
 Architecture: hppa
 Installed-Size: 3424
 Maintainer: Matt Taggart <matt@lackof.org>
 Description: Static gdb for hppa
  This is a static version of gdb for hppa based on 
puffin.external.hp.com cvs.   This is an unofficial debian 
package and will go away when hppa support has
  been integrated in to the normal gdb package.

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info libc6-dev_2.2.3-6.0.1_hppa.deb
 new debian package, version 2.0.
 size 2733850 bytes: control archive= 899 bytes.
     706 bytes,    17 lines      control
     287 bytes,    16 lines   *  postinst             #!/bin/sh
     247 bytes,     7 lines   *  preinst              #!/bin/sh
     180 bytes,    12 lines   *  prerm                #!/bin/sh
 Package: libc6-dev
 Version: 2.2.3-6.0.1
 Section: devel
 Priority: standard
 Architecture: hppa
 Depends: libc6 (= 2.2.3-6.0.1)
 Recommends: c-compiler
 Suggests: glibc-doc
 Conflicts: libstdc++2.10-dev (<< 1:2.95.2-15), gcc-2.95 (<< 
1:2.95.3-8), netkit-rpc, libc-dev
 Replaces: man-db (<= 2.3.10-41), gettext (<= 0.10.26-1), ppp 
(<= 2.2.0f-24), libgdbmg1-dev (<= 1.7.3-24), ldso (<= 
1.9.11-9), netkit-rpc, netbase (<< 4.0)
 Provides: libc-dev
 Installed-Size: 11860
 Maintainer: Ben Collins <bcollins@debian.org>
 Source: glibc
 Description: GNU C Library: Development Libraries and Header 
Files.
  Contains the symlinks, headers, and object files needed to 
compile
  and link programs which use the standard C library.

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info libc6_2.2.3-6.0.1_hppa.deb
 new debian package, version 2.0.
 size 4343044 bytes: control archive= 5160 bytes.
      20 bytes,     1 lines      conffiles
     827 bytes,    18 lines      control
    8008 bytes,   321 lines   *  postinst             
#!/bin/bash
     547 bytes,    27 lines   *  postrm               #!/bin/sh
    2901 bytes,    96 lines   *  preinst              
#!/bin/bash
     182 bytes,    11 lines   *  prerm                #!/bin/sh
     653 bytes,    22 lines      shlibs
 Package: libc6
 Version: 2.2.3-6.0.1
 Section: base
 Priority: required
 Architecture: hppa
 Depends: libdb2 (>= 2:2.7.7-4)
 Suggests: locales, glibc-doc
 Conflicts: strace (<< 4.0-0), libnss-db (<< 2.2-3), timezone, 
timezones, gconv-modules, libtricks, libc6-doc, libc6-i586, 
libc6-i686, libc6-v9, netkit-rpc
 Replaces: ldso (<= 1.9.11-9), timezone, timezones, 
gconv-modules, libtricks, netkit-rpc, netbase (<< 4.0)
 Provides: gconv-modules, glibc2.2
 Installed-Size: 14596
 Maintainer: Ben Collins <bcollins@debian.org>
 Source: glibc
 Description: GNU C Library: Shared libraries and Timezone data
  Contains the standard libraries that are used by nearly all 
programs on
  the system. This package includes shared versions of the 
standard C library
  and the standard math library, as well as many others.
  Timezone data is also included.

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info libstdc++3_3.0-1_hppa.deb
 new debian package, version 2.0.
 size 257680 bytes: control archive= 882 bytes.
     390 bytes,    12 lines      control
     282 bytes,     4 lines      md5sums
     383 bytes,    13 lines   *  postinst             #!/bin/sh
     128 bytes,     6 lines   *  postrm               #!/bin/sh
     198 bytes,     6 lines   *  prerm                #!/bin/sh
      23 bytes,     1 lines      shlibs
 Package: libstdc++3
 Version: 1:3.0-1
 Section: base
 Priority: required
 Architecture: hppa
 Depends: gcc-3.0-base, libc6 (>= 2.2.3-1)
 Installed-Size: 892
 Maintainer: Debian GCC maintainers 
<debian-gcc@lists.debian.org>
 Source: gcc-3.0 (3.0.ds9-1)
 Description: The GNU stdc++ library version 3
  This package contains an additional runtime library for C++ 
programs
  built with the GNU compiler.

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info libstdc++3-dev_3.0-1_hppa.deb
 new debian package, version 2.0.
 size 593396 bytes: control archive= 6769 bytes.
     827 bytes,    16 lines      control
   15408 bytes,   221 lines      md5sums
     224 bytes,     7 lines   *  postinst             #!/bin/sh
     146 bytes,     5 lines   *  prerm                #!/bin/sh
 Package: libstdc++3-dev
 Version: 1:3.0-1
 Section: devel
 Priority: optional
 Architecture: hppa
 Depends: gcc-3.0-base, libstdc++3 (>= 1:3.0-1), libc6-dev (>= 
2.2.3-1), g++-3.0 (>= 1:3.0-1)
 Suggests: stl-manual
 Conflicts: libg++27-dev, libg++272-dev (<< 2.7.2.8-1), 
libstdc++2.8-dev, libg++2.8-dev, libstdc++2.9-dev, 
libstdc++2.9-glibc2.1-dev, libstdc++2.10-dev (<< 1:2.95.3-2), 
libstdc++3.0-dev
 Provides: libstdc++-dev
 Installed-Size: 4032
 Maintainer: Debian GCC maintainers 
<debian-gcc@lists.debian.org>
 Source: gcc-3.0 (3.0.ds9-1)
 Description: The GNU stdc++ library version 3 (development 
files)
  This package contains the headers and static library files 
necessary for
  building C++ programs which use libstdc++. Be advised that 
this only works
  with the GNU C++ compiler (version 2.95), and no earlier 
library will work it.
/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info task-c-dev_0.7_all.deb
 new debian package, version 2.0.
 size 3570 bytes: control archive= 985 bytes.
     847 bytes,    21 lines      control
     207 bytes,     3 lines      md5sums
     265 bytes,     8 lines   *  postinst             #!/bin/sh
     198 bytes,     6 lines   *  prerm                #!/bin/sh
 Package: task-c-dev
 Version: 0.7
 Section: devel
 Priority: optional
 Architecture: all
 Depends: task-devel-common, gcc | c-compiler, cpp, manpages-dev
 Suggests: task-debug, autoproject, protoize-2.95, doc++ | cweb 
| cwebx | cweb-latex | nowebm | fweb | funnelweb, c2man, cxref, 
cutils, tendra, cflow, liwc
 Installed-Size: 12
 Maintainer: Debian GCC maintainers <gcc@packages.debian.org>
 Source: task-devel
 Description: Development in C
  A metapackage containing dependencies and suggestions for a 
complete
  environment for development of programs in the C programming 
language,
  including:
   o Tools common for C, C++ and Objective C development
   o A C preprocessor
   o A C compiler
   o Development files of the standard C library
   o Debugging tools
   o Literate programming tools for C
   o C source analysis tools and tools to manipulate C source

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info task-c++-dev_0.7_all.deb
 new debian package, version 2.0.
 size 3558 bytes: control archive= 974 bytes.
     846 bytes,    22 lines      control
     213 bytes,     3 lines      md5sums
     273 bytes,     8 lines   *  postinst             #!/bin/sh
     202 bytes,     6 lines   *  prerm                #!/bin/sh
 Package: task-c++-dev
 Version: 0.7
 Section: devel
 Priority: optional
 Architecture: all
 Depends: task-devel-common, c++-compiler, cpp, manpages-dev
 Recommends: stl-manual
 Suggests: task-debug, task-c-dev, doc++ | cweb | cwebx | 
cweb-latex | nowebm | fweb | funnelweb, openc++
 Installed-Size: 12
 Maintainer: Debian GCC maintainers <gcc@packages.debian.org>
 Source: task-devel
 Description: Development in C++
  A metapackage containing dependencies, recommendations and 
suggestions
  for a complete environment for development of programs in the
  C++ programming language, including:
   o Tools common for C, C++ and Objective C development
   o A C preprocessor
   o A C++ compiler and the standard C++ library
   o Documentation for the Standard Template Library
   o Debugging tools
   o Literate programming tools for C++
   o An extensible C++ compiler


/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info task-devel-common_0.7_all.deb
 new debian package, version 2.0.
 size 3868 bytes: control archive= 1284 bytes.
    1491 bytes,    27 lines      control
     228 bytes,     3 lines      md5sums
     293 bytes,     8 lines   *  postinst             #!/bin/sh
     212 bytes,     6 lines   *  prerm                #!/bin/sh
 Package: task-devel-common
 Version: 0.7
 Section: devel
 Priority: optional
 Architecture: all
 Depends: make, binutils | binutils-multiarch, glibc-doc, 
manpages-dev | manpages-de-dev | manpages-pl-dev, autoconf, 
automake, libtool, flex, bison, indent | astyle, patch, strace 
| hurd, cvs | rcs | aegis | prcs, gettext
 Suggests: task-c-dev | task-c++-dev | task-objc-dev | 
task-debug, icmake | pmake | xmake | cook | cons, sourcenav, 
byacc, gperf, clig | wyg | opt | autogen, colorgcc, dejagnu, 
cdecl, metrics, dist, nana, gnu-standards, ltrace
 Installed-Size: 12
 Maintainer: Debian GCC maintainers <gcc@packages.debian.org>
 Source: task-devel
 Description: Development in various languages
  A metapackage containing dependencies, recommendations and 
suggestions
  for tools commonly used in development and debugging using 
the C, C++,
  and Objective C programming languages and others, including:
   o Developer's documentation
   o An assembler, linker and tools to manipulate object files
   o Tools to script the build process
   o Tools to help deal with system differences and simplify 
the creation
     of libraries
   o Tools to generate lexical analyzers and parsers
   o Tools to automate indentation and cross-reference 
generation
   o System and library call tracers
   o Version and configuration management systems
   o I18n (internationalization) tools
   o Tools for enhanced assertion checking
   o Tools to help in command line parsing and writing help 
texts
   o Tools for regression testing

/cdrom/dists/sid/main/binary-hppa/more_packages
root@frog # dpkg --info libtool_1.4-1_all.deb
 new debian package, version 2.0.
 size 309832 bytes: control archive= 2195 bytes.
     763 bytes,    18 lines      control
    1678 bytes,    25 lines      md5sums
    1611 bytes,    65 lines   *  postinst             #!/bin/sh
     234 bytes,    18 lines   *  preinst              #!/bin/sh
     263 bytes,    13 lines   *  prerm                #!/bin/sh
 Package: libtool
 Version: 1.4-1
 Section: devel
 Priority: optional
 Architecture: all
 Depends: gcc | c-compiler, cpp, libc6-dev | libc-dev, file
 Recommends: libltdl3-dev
 Suggests: libtool-doc, autoconf, automake
 Conflicts: autoconf (<= 2.12), automake (<= 1.3)
 Installed-Size: 1099
 Maintainer: Ossama Othman <ossama@debian.org>
 Description: Generic library support script
  This is GNU libtool, a generic library support script.  
Libtool hides
  the complexity of generating special library types (such as 
shared
  libraries) behind a consistent interface.  To use libtool, 
add the
  new generic library building commands to your Makefile, 
Makefile.in,
  or Makefile.am.  See the documentation for details.  Libtool 
supports
  building static libraries on all platforms.

----- 8< ----- 8< ----- 8< ----- 8< ----- 8< -----

Some packages seem to relie on packages which are either
not present or the dependencies are not up-to-date ... 

Another way could be to configure the already installed 
utilities. Is there a central configuration file for gcc ?
How gcc knows where to look for the include files and
essential libraries ?

Anybody outthere who could help ?

Thanks in advance !

Reinhard.

P.S.: This topic was an issue in parisc-linux digest,
Vol 1 #208. The way offered there did not lead to
success ...




From - Thu Nov 08 21:18:52 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [palinux-0.9.2] Where are the compilers (c, c++) ?
Date: Sun, 19 Aug 2001 11:18:34 +0100
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	debian-hppa@lists.debian.org, debian-gcc@lists.debian.org,
	matt@lackof.org, gcc@packages.debian.org, ossama@debian.org
To: Reinhard Gimbel <Reinhard.Gimbel@freenet.de>
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Sun Aug 19 04:18:44 2001
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On Sun, Aug 19, 2001 at 12:07:27PM +0200, Reinhard Gimbel wrote:
> After successfully installing palinux-0.9.2 on my 715/64
> I'm looking for the compilers (c, c++) ...

It looks like you didn't add the debian apt sources to your
/etc/apt/sources.list.  binutils is at 2.11.90.0.27-1 currently,
for example.  Make sure you have gcc-3.0 installed (from the archive;
current version for hppa is 3.0.1-0pre010811).

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:18:52 2018
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From: Reinhard Gimbel <Reinhard.Gimbel@freenet.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [palinux-0.9.2] Where are the compilers (c, c++) ?
Date: Sun, 19 Aug 2001 21:10:25 +0200
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Cc: parisc-linux@lists.parisc-linux.org,
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	matt@lackof.org, gcc@packages.debian.org, ossama@debian.org
To: Matthew Wilcox <willy@debian.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:11920

> > After successfully installing palinux-0.9.2 on my 715/64
> > I'm looking for the compilers (c, c++) ...
>
> It looks like you didn't add the debian apt sources to your
> /etc/apt/sources.list.  binutils is at 2.11.90.0.27-1
> currently, for example.  Make sure you have gcc-3.0 installed
> (from the archive; current version for hppa is
> 3.0.1-0pre010811).

/etc/apt/sources.list contains one line which point to my local 
CD-ROM drive

'man apt-get' and man 'sources.list' result in 'No manual entry 
for ...'

'apt-get install gcc' results in:

----- 8< ----- 8< ----- 8< ----- 8< ----- 8< -----

root@frog # apt-get install gcc
Reading Package Lists... Done
Building Dependency Tree... Done
Sorry, gcc is already the newest version.
You might want to run `apt-get -f install' to correct these:
Sorry, but the following packages have unmet dependencies:
  cpp: Depends: cpp-3.0 but it is not installable
  g++: Depends: g++-3.0 but it is not installable
       Depends: gcc-3.0 but it is not installable
  gcc: Depends: gcc-3.0 but it is not installable
       Depends: cpp-3.0 but it is not installable
  libstdc++3-dev: Depends: g++-3.0 (>= 1:3.0-1) but it is not 
installable
E: Unmet dependencies. Try 'apt-get -f install' with no 
packages (or specify a .

----- 8< ----- 8< ----- 8< ----- 8< ----- 8< -----

The output of apt-get says that there is something essential 
missing to install the C compiler environment or ot get a 
running C/C++ development environment ...

The only data I have got at present is from the CD-ROM image 
'palinux-0.9.2' (approx. 130 MB)

The folder tree below  
'ftp://ftp.debian.org/debian/dists/sid/binary-hppa' holds only 
a few deb-files (no C compilers as I would need to solve my 
problem) which mainly are links to binary-all.

So there seems to be no hppa-related stuff at least at the 
original debian server ...

Reinhard.




From - Thu Nov 08 21:18:52 2018
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From: Matt Taggart <matt@lackof.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [palinux-0.9.2] Where are the compilers (c, c++) ?
Date: Sun, 19 Aug 2001 13:50:00 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:11921

Reinhard Gimbel writes...

> The folder tree below  
> 'ftp://ftp.debian.org/debian/dists/sid/binary-hppa' holds only 
> a few deb-files (no C compilers as I would need to solve my 
> problem) which mainly are links to binary-all.

That's because everything lives in the pool now( see 
http://ftp.de.debian.org/debian/pool/ ). You need to add this line to your 
/etc/apt/sources.list,

deb http://ftp.de.debian.org/debian unstable main non-free contrib

Then run,

apt-get update
apt-get upgrade

That will get you everything you need in order to use the unofficial 
binutils-hppa64 and gcc-hppa64 debs that are on the CD so that you can build a 
64 bit kernel.

Eventually the hppa64 cross-compilers will be in the Debian archive, but not 
until they can be built in a clean/sane fashion. For now just keep using the 
ones on the CD also available at,

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/unofficial-debs/

HTH,

-- 
Matt Taggart
matt@lackof.org






From - Thu Nov 08 21:18:52 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: [palinux-0.9.2] Where are the compilers (c, c++) ?
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On Sun, Aug 19, 2001 at 01:50:00PM -0600, Matt Taggart wrote:
> apt-get update
> apt-get upgrade

Nitpick: use dist-upgrade instead of upgrade; it'll do more what you want.

I notice a lot of questions we're getting recently are generic debian
questions rather than being hppa-specific; could people please read
some of the documentation on the debian website if they're not familiar
with debian?

-- 
Revolutions do not require corporate support.




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Xref: news.gmane.org gmane.linux.ports.parisc:11923



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From - Thu Nov 08 21:18:52 2018
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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
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Subject: [parisc-linux] contact wanted in the US
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To: "<" <parisc-linux@parisc-linux.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:11924

I'm bidding on an HP workstation that would only be shipped to the USA.

Unfortunately, I don't live there.

Should I win, is there someone here willing to receive it and send it on
to me? I'm happy to pay costs via paypal, and I'll send you a real Dutch
souvenir (no drugs/weed, before you ask). I'm planning to run parisc-linux
on it, of course, and hope to learn enough to even be able to contribute.

Please get in touch,
Jurriaan







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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Subject: [parisc-linux] Kernel 2.4.9-pa2?
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Xref: news.gmane.org gmane.linux.ports.parisc:11925

Dear all,

I just recompile the last cvs kernel (dated 20010818) and install it on a
712 model.

Is it nornal that process ksoftirq_CPU0 consume about 95% of cpu resources?

tnx in advance,
     Joel



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> Is it nornal that process ksoftirq_CPU0 consume about 95% of cpu resources?

Nope.




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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Kernel 2.4.9-pa2?
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> > Is it nornal that process ksoftirq_CPU0 consume about 95% of cpu
> > resources?

Hi Jol,

sorry, but I can't verify that with my 715/64, kernel -pa3 (same as -pa2 with
just a few minor and for this problem irrelevant changes in the harmony sound driver).

pa64:~# uname -a
Linux pa64 2.4.9-pa3 #6 Son Aug 19 20:16:30 CEST 2001 parisc unknown

pa64:~# top 

44 processes: 43 sleeping, 1 running, 0 zombie, 0 stopped
CPU states:   2.3% user,   2.8% system,   0.0% nice,  94.9% idle
PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND  
   3 root      19  19     0    0     0 SWN   0.0  0.0   0:00 ksoftirqd_CPU0  

Helge




From - Thu Nov 08 21:18:52 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] iotree thoughts
Date: Mon, 20 Aug 2001 23:44:20 -0600
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To: Matthew Wilcox <willy@debian.org>
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In-Reply-To: Message from Matthew Wilcox <willy@debian.org> 
   of "Tue, 14 Aug 2001 17:02:12 BST." <20010814170212.A22144@parcelfarce.linux.theplanet.co.uk> 
Xref: news.gmane.org gmane.linux.ports.parisc:11928

Matthew Wilcox wrote:
> On Thu, Aug 09, 2001 at 09:06:43AM -0600, Grant Grundler wrote:
> > Yes. AFAIK, LASI sub-devices are listed by PDC. For Dino HPUX makes
> > a special hvers PDC call. Need to look at the HPUX code or Raven PDC ERS.
> 
> If you could dig those out for me, that'd be great.  I'm not familiar with
> the layout of the HPUX source tree yet.

That sounds too much like work. ;^)
Raven PDC ERS is available from HP's firmware team website. (internal only).

> > My long term goal is to be able to build a kernel w/o CONFIG_PCI defined.
> > And renaming gsc_init to native_bus_init() sounds like a good idea.
> 
> That's a good point.  A good step towards that would be..

I disagree. I want the kernel to NOT link if CONFIG_PCI and
CONFIG_ISA are not enabled when inx/outx functions are used.

> +#else
> +#define inb(a) BUG()
> +#define inw(a) BUG()
> +#define inl(a) BUG()
> +#define outb(a) BUG()
> +#define outw(a) BUG()
> +#define outl(a) BUG()
>  #endif

This will allow the kernel to link and then fail after rebooting.
That seems like a step backwards to me.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] XFree86 - white pixel is blue
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To: Chuck Slivkoff <charles_slivkoff@hp.com>
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   of "Wed, 15 Aug 2001 18:57:29 EDT." <3B7AFE59.160764FE@hp.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:11929

Chuck Slivkoff wrote:
> I just loaded the ISO on a 712/60 and setup XFree86 to use the fbdev
> driver. It seems to be OK, with the exception that "white" is "blue".

This sounds like a a bug.
The ESIEE guys will be around tomorrow and I can ask them about it.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Kernel 2.4.9-pa2?
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On Monday 20 August 2001 23:17, Helge Deller wrote:
> > > Is it nornal that process ksoftirq_CPU0 consume about 95% of cpu
> > > resources?
>
> Hi Jol,
>
> sorry, but I can't verify that with my 715/64, kernel -pa3 (same as -pa2
> with just a few minor and for this problem irrelevant changes in the
> harmony sound driver).
>
> pa64:~# uname -a
> Linux pa64 2.4.9-pa3 #6 Son Aug 19 20:16:30 CEST 2001 parisc unknown
>
> pa64:~# top
>
> 44 processes: 43 sleeping, 1 running, 0 zombie, 0 stopped
> CPU states:   2.3% user,   2.8% system,   0.0% nice,  94.9% idle
> PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
>    3 root      19  19     0    0     0 SWN   0.0  0.0   0:00 ksoftirqd_CPU0
>
> Helge

Oops, I think you found a bug in the kernel. Don't know yet if it's only pa-risc specific
or a general linux-kernel issue.

c3000:~# uname -a
Linux c3000 2.4.9-pa3 #6 Son Aug 19 20:16:30 CEST 2001 parisc unknown

c3000:~# uptime
 08:36:15 up  9:28,  2 users,  load average: 1.00, 1.00, 1.00

c3000:~# top 
49 processes: 46 sleeping, 3 running, 0 zombie, 0 stopped
CPU states:   0.6% user,  99.4% system,   0.0% nice,   0.0% idle
  PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
    3 root      20  19     0    0     0 RWN  99.2  0.0 445:09 ksoftirqd_CPU0

Greetings,
Helge




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On Tue, Aug 21, 2001 at 08:36:56AM +0200, Helge Deller wrote:
> Oops, I think you found a bug in the kernel. Don't know yet if it's
> only pa-risc specific or a general linux-kernel issue.

I think you're right.  Richard saw it on an A500 with 2.4.8 too.
I've seen a few scattered reports from people on other architectures
that they're seeing the same thing.

I went over the softirqd code this morning, and nothing jumped out at
me and said `this is something parisc is doing wrong'.  Maybe more eyes..

-- 
Revolutions do not require corporate support.




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On Mon, Aug 20, 2001 at 11:44:20PM -0600, Grant Grundler wrote:
> That sounds too much like work. ;^)
> Raven PDC ERS is available from HP's firmware team website. (internal only).

Thanks, I'll look at that.

> I disagree. I want the kernel to NOT link if CONFIG_PCI and
> CONFIG_ISA are not enabled when inx/outx functions are used.

I discussed this with Ted Ts'o at OLS.  The difficulty is that there's
a fair bit of arch-independent code which does (example taken from serial.c):

static _INLINE_ unsigned int serial_in(struct async_struct *info, int offset)
{
        switch (info->io_type) {
        case SERIAL_IO_MEM:
                return readb((unsigned long) info->iomem_base +
                             (offset<<info->iomem_reg_shift));
        default:
                return inb(info->port + offset);
        }
}

so either we add the nasty:

        default:
#if defined(CONFIG_PCI) || defined(CONFIG_ISA)
                return inb(info->port + offset);
#else
                BUG();
#endif

or we just make inb() BUG().

> This will allow the kernel to link and then fail after rebooting.
> That seems like a step backwards to me.

Only if they're called.  The majority of places where these functions
exist can provably never be called.  The others probably won't be :-)

-- 
Revolutions do not require corporate support.




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Helge Deller wrote:
> The 715/64 has the Artist graphics chip too, so I suspect we
> just need some more initialization for the "older revisions" of the Artist
> chip in the 712 machines.

It's possible the 715/64 firmware and 712 firmware behave differently.
ie artist chip initialization by firmware could be different.

I'm assuming stifb doesn't send a RESET command to the Artist chip directly
and start initializing from scratch.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Helge Deller wrote:
> Machines with a PA8XXX CPU don't have any LASI/GSC devices and would _always_
> HPMC without PCI support.

Later K-class models have no PCI (except "card-mode Dino add-on cards)
and PA2.0 CPU's.

> So I still think it is better to panic() with a nice message 

Better to just not link if the kernel configuration permits a driver to get
included which needs inb/outb functions. We should be able to catch stuff
like this at link time.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Matthew Wilcox wrote:
> I discussed this with Ted Ts'o at OLS.  The difficulty is that there's
> a fair bit of arch-independent code which does (example taken from serial.c):
> 
> static _INLINE_ unsigned int serial_in(struct async_struct *info, int offset)
....
> so either we add the nasty:
> 
>         default:
> #if defined(CONFIG_PCI) || defined(CONFIG_ISA)
>                 return inb(info->port + offset);
> #else
>                 BUG();
> #endif

The ifdef is only once in that source file.

> or we just make inb() BUG().

The problem is serial.c is written for x86 arch and wasn't ported
cleanly for other arches. Makeing inb() BUG() allows sloppy
porting.


> Only if they're called.  The majority of places where these functions
> exist can provably never be called.  The others probably won't be :-)

I don't bet on "probably".

If the kernel is designed to not link when a dependency is not met,
I can find problems much faster when they arise. Having to build/reboot
to find porting/coding issues seems harder than it needs to be.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: Re: [parisc-linux] Kernel 2.4.9-pa2?
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Hi Helge,

Sorry to have not enough knowlegde to help the debuging.

Regarding IA box I do not yet have the opportunity to recompile a recent
kernel 2.4 but I will try asap.

Kind regards,
     Joel



                                                                           =
                                       =20
                    Helge Deller                                           =
                                       =20
                    <deller@gmx.d        To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD                             =20
                    e>                   cc:     parisc-linux@lists.parisc-=
linux.org@SMTP@EUROPAY                 =20
                                         Subject:     Re: [parisc-linux] Ke=
rnel 2.4.9-pa2?                        =20
                    21-08-01                                               =
                                       =20
                    08:36 AM                                               =
                                       =20
                                                                           =
                                       =20
                                                                           =
                                       =20



On Monday 20 August 2001 23:17, Helge Deller wrote:
> > > Is it nornal that process ksoftirq_CPU0 consume about 95% of cpu
> > > resources?
>
> Hi Jo=EBl,
>
> sorry, but I can't verify that with my 715/64, kernel -pa3 (same as -pa2
> with just a few minor and for this problem irrelevant changes in the
> harmony sound driver).
>
> pa64:~# uname -a
> Linux pa64 2.4.9-pa3 #6 Son Aug 19 20:16:30 CEST 2001 parisc unknown
>
> pa64:~# top
>
> 44 processes: 43 sleeping, 1 running, 0 zombie, 0 stopped
> CPU states:   2.3% user,   2.8% system,   0.0% nice,  94.9% idle
> PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
>    3 root      19  19     0    0     0 SWN   0.0  0.0   0:00
ksoftirqd_CPU0
>
> Helge

Oops, I think you found a bug in the kernel. Don't know yet if it's only
pa-risc specific
or a general linux-kernel issue.

c3000:~# uname -a
Linux c3000 2.4.9-pa3 #6 Son Aug 19 20:16:30 CEST 2001 parisc unknown

c3000:~# uptime
 08:36:15 up  9:28,  2 users,  load average: 1.00, 1.00, 1.00

c3000:~# top
49 processes: 46 sleeping, 3 running, 0 zombie, 0 stopped
CPU states:   0.6% user,  99.4% system,   0.0% nice,   0.0% idle
  PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
    3 root      20  19     0    0     0 RWN  99.2  0.0 445:09
ksoftirqd_CPU0

Greetings,
Helge





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> or we just make inb() BUG().

Its probably more useful to make it print the port numher and traceback then
continue. That way any minor escapees will get back some cookie you pick
(eg 0xFF) and you can chase them out easily




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Dear all,

After the upgrade of XFree86-4.0 to XFree86-4.1 on my 712/80 parisc box, X
would not more restart: did not find config file.
Which config file?
I just have to rename my XF86Config to XF86Config-4. Could it not be added
in the package configuration procedure?

Thanks for your attention,
     Joel

PS: I better understand "white pixel" appears "blue". This was not the case
with XFree86-4.0



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From - Thu Nov 08 21:18:53 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] iotree thoughts
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On Tuesday 21 August 2001 09:53, Grant Grundler wrote:
> Matthew Wilcox wrote:
> > Only if they're called.  The majority of places where these functions
> > exist can provably never be called.  The others probably won't be :-)
>
> I don't bet on "probably".
>
> If the kernel is designed to not link when a dependency is not met,
> I can find problems much faster when they arise. Having to build/reboot
> to find porting/coding issues seems harder than it needs to be.

Hi Grant & Matthew,

I still think Matthew's solution is a good idea. Why should the user be
bothered to compile in that PCI stuff if he won't need it at all ?
I tried Matthew's patch and it worked without problems on my 715/64 
and this is exactlly one of those machines for which the patch was 
designed. Those machines use LASI-style LAN, PS/2 or HIL Keyboard/Mice, 
STI(fb) and the harmony sound driver. Those are well-defined drivers which we
know that they work without PCI and which other drivers should we need ? 
GSC-cards ? They should work since I think they only have additional LASI's 
or somethink like that (You may correct me if I'm wrong.).
EISA-Cards ? We don't support any yet. Maybe in the future, but then the user
will also need to add PCI support anyway.
So I don't see any reason, why we shouldn't make it possible to link
a kernel without PCI support and call BUG() (and print out the port-number as 
Alan suggested) just in case we would miss one place.
Btw, I love a small kernel if I'm running it on such a slow machine which is often 
only equipped with 32-64 MB RAM.

Just my 0.02 cents,

Helge




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On Mon, Aug 20, 2001 at 11:44:20PM -0600, Grant Grundler wrote:
> Matthew Wilcox wrote:
> > On Thu, Aug 09, 2001 at 09:06:43AM -0600, Grant Grundler wrote:
> > > Yes. AFAIK, LASI sub-devices are listed by PDC. For Dino HPUX makes
> > > a special hvers PDC call. Need to look at the HPUX code or Raven PDC ERS.
> > 
> > If you could dig those out for me, that'd be great.  I'm not familiar with
> > the layout of the HPUX source tree yet.
> 
> That sounds too much like work. ;^)
> Raven PDC ERS is available from HP's firmware team website. (internal only).

I looked through the Raven ERS, it wasn't too helpful.  I managed to find
the Dino driver in the HPUX source tree.... it doesn't seem to make the
call itself, but instead:

    /*
     * Loop thru the fixed_mod_table looking for a fixed module
     * that is a child of Dino.  Start at whatever index we just
     * figured out from the hardware path of the last module found.
     */
    for(; idx < nfixed_modules; idx++) {
        entry = &fixed_mod_table[idx];
        
        if (is_child_of(entry, parent_path))
        {
#ifdef RDB
            /*
             * Ignore the serial port if RDB is using it.
             */
            if ((entry != NULL) && (!(IS_RDB_DEVICE(entry->reg_set))))
#endif
                    return entry;
        }
        /* else not a child of dino - loop again */
    }

    /*
     * If we exit the loop without returning anything, we must not
     * have found the rs232 entry in the FMT.  The rs232 is not to
     * be used in this system, so return NULL
     */
    return NULL;

So it seems to me that we shouldn't do bus-walks underneath Dino, but
rely on PDC telling us about the device if it's attached.

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] STI initialisation cleanup
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Xref: news.gmane.org gmane.linux.ports.parisc:11941

get_pa_dev is going away as part of the iotree rewrite, and since STI is
the only part of the kernel still using it, here's a patch to eliminate
it.  This converts sticore to use the normal parisc_device API rather
than attempting to find devices by itself (moral: leave matchmaking to
the experts).  I did some minor cleanups, renaming & so on.

Comments welcome, testers more welcome :-)  As usual, it compiles, but
no warranty beyond that.  Ryan tried an earlier version of this patch in
his iotree-hacked kernel, and it seemed to work OK.  I can see a fair
few more things which need to get simplified & fixed in this driver,
but let's save that for the next round of patches.

Index: drivers/video/sti/sticore.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/video/sti/sticore.c,v
retrieving revision 1.21
diff -u -p -r1.21 sticore.c
--- sticore.c	2001/08/14 16:54:59	1.21
+++ sticore.c	2001/08/22 07:28:38
@@ -826,51 +826,29 @@ out_err:
 }
 
 
-static struct sti_struct * __init
-search_sti(unsigned long flash_sti_rom, unsigned long hpa)
-{
-    int index;
-    unsigned long rom;
-    struct sti_struct *sti; 
-    struct parisc_device *pa_dev;
-    
-    index = 0;
-    while ((pa_dev = get_pa_dev(index)) != NULL) {
-
-	if ((pa_dev->hpa == hpa) &&
-	    ((pa_dev->id.sversion == 0x85) || /* Gecko graphics (WORD MODE) */
-	     (pa_dev->id.sversion == 0x77)) ) /* Coral graphics (BYTE MODE) */
-	{
-	    /* 
-		on newer systems PDC gives the address of the ROM 
-		in the additional address field addr[1] while on
-		older Systems the PDC stores it in page0->proc_sti 
-	    */
-	    rom = pa_dev->addr[1];
-	    if (!rom)
-	    	rom = flash_sti_rom;
-	    if (!rom)
-		rom = hpa;
-	    if (rom) {
-		DPRINTK((KERN_DEBUG "Trying STI ROM at %08lx, hpa at %08lx\n",
-		    rom, hpa));
-		sti = sti_try_rom_generic(rom, hpa, NULL);
-		if (sti)
-		    return sti;
-	    } else {
-		printk(KERN_WARNING 
-		"Unable to find ROM address of graphics device at hpa %08lx\n",
-		    hpa);
-	    }
+/*
+ * on newer systems PDC gives the address of the ROM 
+ * in the additional address field addr[1] while on
+ * older Systems the PDC stores it in page0->proc_sti 
+ */
+static int __init sticore_pa_init(struct parisc_device *dev)
+{
+	unsigned long rom = dev->addr[1];
+	if (!rom) {
+		rom = PAGE0->proc_sti;
+	}
+	if (!rom) {
+		rom = dev->hpa;
 	}
-	index++;
-    }
-    return NULL;
+	DPRINTK((KERN_DEBUG "Trying STI ROM at %08lx, hpa at %08lx\n", rom, dev->hpa));
+	if (sti_try_rom_generic(rom, dev->hpa, NULL))
+		return 0;
+	return 1;
 }
 
 
-static int __devinit sticon_init_one (struct pci_dev *pd,
-				      const struct pci_device_id *ent)
+static int __devinit sticore_pci_init(struct pci_dev *pd,
+		const struct pci_device_id *ent)
 {
 	unsigned long fb_base, rom_base;
 	unsigned int fb_len, rom_len;
@@ -907,8 +885,7 @@ static int __devinit sticon_init_one (st
 	sti = sti_try_rom_generic(rom_base, fb_base, pd);
 #endif
 	if (!sti) {
-		printk(KERN_WARNING 
-			"Unable to handle STI device '%s'\n",
+		printk(KERN_WARNING "Unable to handle STI device '%s'\n",
 			pd->name);
 		return -ENODEV;
 	}
@@ -916,7 +893,7 @@ static int __devinit sticon_init_one (st
 }
 
 
-static void __devexit sticon_remove_one (struct pci_dev *pd)
+static void __devexit sticore_pci_remove(struct pci_dev *pd)
 {
 	BUG();
 }
@@ -924,69 +901,53 @@ static void __devexit sticon_remove_one 
 
 #define PCI_DEVICE_ID_VISUALIZE_EG	0x1005
 
-static struct pci_device_id sticon_pci_tbl[] __devinitdata = {
+static struct pci_device_id sti_pci_tbl[] __devinitdata = {
 	{ PCI_VENDOR_ID_HP, PCI_DEVICE_ID_VISUALIZE_EG, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 	{ 0, } /* terminate list */
 };
-MODULE_DEVICE_TABLE(pci, sticon_pci_tbl);
+MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
 
-static struct pci_driver sticon_driver = {
-	name:		"sticon",
-	id_table:	sticon_pci_tbl,
-	probe:		sticon_init_one,
-	remove:		sticon_remove_one,
+static struct pci_driver pci_sti_driver = {
+	name:		"sti (pci)",
+	id_table:	sti_pci_tbl,
+	probe:		sticore_pci_init,
+	remove:		sticore_pci_remove,
 };
-
-
-int __init sticon_pci_init(void)
-{
-	return pci_module_init (&sticon_driver);
-}
 
-
-static void __exit sticon_pci_exit(void)
-{
-	pci_unregister_driver (&sticon_driver);
-}
-
+static struct parisc_device_id sti_pa_tbl[] = {
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
+	{ 0, }
+};
 
+struct parisc_driver pa_sti_driver = {
+	name:		"sti (native)",
+	id_table:	sti_pa_tbl,
+	probe:		sticore_pa_init,
+};
 
-struct sti_struct * __init
-sti_init_roms(void)
+struct sti_struct * __init sti_init_roms(void)
 {
 	static int initialized;
-	unsigned long flash_rom;
 
 	if (initialized)
-	    goto out;
+		goto out;
 
-	/* 712 and on the later generation 715 and 725 products
-	 * the STI ROM is part of the regular flash and the PDC
-	 * stored a pointer to the ROM for us at PAGE0->proc_sti.
-	 * On other systems this value will be NULL */
-	flash_rom = PAGE0->proc_sti;
-
-	/* search the possible hpa locations (64bit ready)
-	   in the default order */
-	search_sti(flash_rom, (unsigned long) 0xfffffffff8000000);
-	search_sti(flash_rom, (unsigned long) 0xfffffffff4000000);
-	search_sti(flash_rom, (unsigned long) 0xfffffffff6000000);
-	search_sti(flash_rom, (unsigned long) 0xfffffffffa000000);
+	/* Register drivers for native & PCI cards */
+	register_parisc_driver(&pa_sti_driver);
+	pci_module_init (&pci_sti_driver);
 
-	/* now search for PCI graphic cards */
-	sticon_pci_init();
-	
 	/* check boot-value from "sti=<index>" */
 	if (sti_initial_index >= num_sti_roms)
-	    sti_initial_index = 0;
-	    
+		sti_initial_index = 0;
+
 	default_sti = sti_roms[sti_initial_index];
 
 out:
 	/* return default STI if available */
 	if (num_sti_roms && default_sti && default_sti->init_graph) {
-	    initialized++;
-	    return default_sti;
-	} else
-	    return NULL;
+		initialized = 1;
+		return default_sti;
+	}
+	return NULL;
 }

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] RE: STI initialisation cleanup
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Hi Matthew,

I just recompile cvs dated 20010821 after appliying your patch and seems to
work on my 712 box.

at least Xfree always start (I could not go further because hp_psaux does
not yet work back and patch of Thomas
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-August/013315.html

is not any more applicable)

In the hoppe to be helpfull,
     Joel



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On Wed, Aug 22, 2001 at 02:39:38PM +0200, Jol Soete wrote:
> Hi Matthew,
> 
> I just recompile cvs dated 20010821 after appliying your patch and seems to
> work on my 712 box.

Thanks, joel!

-- 
Revolutions do not require corporate support.




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Xref: news.gmane.org gmane.linux.ports.parisc:11944

Hi Matthew,

I just try to investigate a little bit:
a) I do not encountered the problem with an IA32 (not exactly the same
config file but I thing it should be independent)
b) the problem was not present on kernel-2,4,6-pa22 but appears in fact
with kernel-2.4.7-pa1 (sorry to not have reported at this time)

The problem seems to dependent of pa-risc (and only some one as the 715
model do not seems to affected)

Kind regards,
     Joel

PS: If it could help you, I can also test on a sparc20 to be sure.



                                                                           =
                                       =20
                    Matthew                                                =
                                       =20
                    Wilcox               To:     Helge Deller <deller@gmx.d=
e>@SMTP@EUROPAY                        =20
                    <willy@debian        cc:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD,                            =20
                    .org>                parisc-linux@lists.parisc-linux.or=
g@SMTP@EUROPAY                         =20
                                         Subject:     Re: [parisc-linux] Ke=
rnel 2.4.9-pa2?                        =20
                    21-08-01                                               =
                                       =20
                    08:46 AM                                               =
                                       =20
                                                                           =
                                       =20
                                                                           =
                                       =20



On Tue, Aug 21, 2001 at 08:36:56AM +0200, Helge Deller wrote:
> Oops, I think you found a bug in the kernel. Don't know yet if it's
> only pa-risc specific or a general linux-kernel issue.

I think you're right.  Richard saw it on an A500 with 2.4.8 too.
I've seen a few scattered reports from people on other architectures
that they're seeing the same thing.

I went over the softirqd code this morning, and nothing jumped out at
me and said `this is something parisc is doing wrong'.  Maybe more eyes..

--
Revolutions do not require corporate support.





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On Wed, Aug 22, 2001 at 04:27:24PM +0200, Jol Soete wrote:
> The problem seems to dependent of pa-risc (and only some one as the 715
> model do not seems to affected)

Does it happen for you every time?  I've seen it occasionally on other
machines, but never regularly.

-- 
Revolutions do not require corporate support.




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From: pakalee <pakalee@LanMinds.net>
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Subject: [parisc-linux] HP-UX install disks
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Xref: news.gmane.org gmane.linux.ports.parisc:11946

This is prob. shady at best:

I love and support linux (run it on PA-RISC,UltraSparc, even 8086!)  - but
sure would like to see how HP-UX works too.

Anybody have HP-UX install disks for a 700 series box (712/60)?
Any version will do.

Feel free to contact me directly.

-R





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From: "Christian Knoch" <ChristianK@datco.com.ar>
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Subject: [parisc-linux] HELP ME PLEASE - d220 Install problem
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HELP ME!!!
i have a d220
I download a iso image and write a cd, but cannot boot this cd
how to install debian in D220 step by step please



Thanks
Christian Knoch




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On Wed, Aug 22, 2001 at 08:04:27PM -0300, Christian Knoch wrote:
> HELP ME!!!
> i have a d220
> I download a iso image and write a cd, but cannot boot this cd
> how to install debian in D220 step by step please

You're going to have to be a little more specific than that.  Most
problems that get reported as `cannot boot this cd' are caused by using
the incorrect options when burning the CD.  Here's one example:
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-May/012642.html

-- 
Revolutions do not require corporate support.




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Xref: news.gmane.org gmane.linux.ports.parisc:11949

Helge Deller wrote:
> Why should the user be
> bothered to compile in that PCI stuff if he won't need it at all ?

That isn't an issue - we all agree CONFIG_PCI isn't needed on older machines.

> Those are well-defined drivers which we
> know that they work without PCI and which other drivers should we need ? 

This is a good point. I'll shup up. :^)

thanks,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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OK, I am sure I am overlooking some obvious things here, but it looks =
like I am stuck to the point of needing help so here goes.

I downloaded the iso and burned it with Nero on a win2k machine (the =
only burner I have easy access to)

my configurtion is hp 735/125 workstation,  209 meg ram, =20
on narrow SCSI chain I have  2 gig ST32550N (currently HP-UX), NEC 6x =
external CD-ROM drive. 4mm dds1 tape drive.
on fast wide HVD 4gig ST15150W=20

I can not seem to get the serial ports to work on this system even when =
I run HP_UX 11.00. I have tried unplugging the keyboard and the video =
card to no effect.

When I boot off of the CD-ROM i get the following (summarized and =
perhaps with some typos as I can not capture it)
note: "..." on a line by itself mean one or more skipped lines.  Let me =
know if you need to see anything that is there.


...
Hard Booted.
palo ipl 0.92 root@spqr Mon Jun 25 23:03:13 CEST 2001
0/vmlinux32 2853588 bytes @ 0x6ad6800
...
...
Command line: 'root=3D/dev/ram/ console=3Dtty0 sti=3D0 =
sti_font=3DVGA8x16 TERM=3Dlinux'
...
...
Warning: kernel name doesn't end with 32 or 64... Guessing Anoyance: =
Firmware
does not support PDC_MODELS_CAPABILITES call
32
ELF 32 executable
...
...
Loading ramdisk 1991209 bytes @ 0ce09000...
branching to kernel entry point 0x00100000

and it stays on that last line as long as I want to wait. I do not hear =
disk noises or other indications it may be doing anything.


Perhaps I need to work more on getting the serial lines to work but the =
serial lines may be a hardware problem. =20

tried with graphics card removed but did not even get the usual beep.  =
Oh, I have the graphics card with the 4 BNC on it.  Red, Green, Blue, =
and Stereo.

no problems when doing a cold install of HP-UX 11.00 so I asume the =
drives are ok.=20

I have other resources like our own LAN, and a red hat linux machine I =
can work with. but I have no ideas.=20

Thanks in advance.


PS:

if anyone needs them (but do take them just to resell) I have two EISA =
e-net cards and two EISA SCSI cards (single ended 50 pin). I also have =
about seventeen 2 gig fast wide HVD loose drives. If I can get this to =
work, I may be able to put linux installs on them and give them away  ( =
I believe can also build hp-ux on them if the recipient will take care =
of the license issues with HP)=20

All are available to anyone to use if they pay for shipping. =20




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Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2505.0" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>OK, I am sure I am overlooking some =
obvious things=20
here, but it looks like I am stuck to the point of needing help so here=20
goes.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I downloaded&nbsp;the iso and burned it =
with Nero=20
on a win2k machine (the only burner I have easy access to)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>my configurtion is hp 735/125 =
workstation,=20
&nbsp;209 meg ram,&nbsp; </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>on narrow SCSI chain I have&nbsp; 2 gig =
ST32550N=20
(currently HP-UX), NEC 6x external CD-ROM drive. 4mm dds1 tape=20
drive.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>on fast wide HVD 4gig ST15150W =
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I can not seem to get the serial ports =
to work on=20
this system even when I run HP_UX 11.00. I have tried unplugging the =
keyboard=20
and the video card to no effect.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>When I boot off of the CD-ROM i get the =
following=20
(summarized and perhaps with some typos as I can not capture =
it)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>note: "..." on a line by itself mean =
one or more=20
skipped lines.&nbsp; Let me know if you need to see anything that is=20
there.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Hard Booted.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>palo ipl 0.92 <A=20
href=3D"mailto:root@spqr">root@spqr</A> Mon Jun 25 23:03:13 CEST =
2001</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>0/vmlinux32 2853588 bytes @ =
0x6ad6800</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Command line: 'root=3D/dev/ram/ =
console=3Dtty0 sti=3D0=20
sti_font=3DVGA8x16 TERM=3Dlinux'</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Warning: kernel name doesn't end with =
32 or 64...=20
Guessing Anoyance: Firmware</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>does not support PDC_MODELS_CAPABILITES =

call</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>32</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>ELF 32 executable</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Loading ramdisk 1991209 bytes @=20
0ce09000...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>branching to kernel entry point=20
0x00100000</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>and it stays on that last line as long =
as I want to=20
wait. I do not hear disk noises or other indications it may be doing=20
anything.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Perhaps I need to work more on getting =
the serial=20
lines to work but&nbsp;the serial lines&nbsp;may be a hardware =
problem.&nbsp;=20
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>tried with graphics card removed but =
did not even=20
get the usual beep.&nbsp; Oh, I have the graphics card with the 4 BNC on =

it.&nbsp; Red, Green, Blue, and Stereo.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>no problems when doing a =
cold&nbsp;install of HP-UX=20
11.00 so I asume the drives are ok. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I have other resources like =
our&nbsp;own=20
LAN,&nbsp;and a red hat&nbsp;linux machine I can work with. but I have =
no ideas.=20
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks in advance.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>PS:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>if anyone needs them (but do =
take&nbsp;them=20
just&nbsp;to resell) I have two EISA e-net cards and two EISA SCSI cards =
(single=20
ended 50 pin). I also have about seventeen 2 gig fast wide HVD loose =
drives. If=20
I can get this to work, I may be able to put linux installs on them and =
give=20
them away&nbsp; ( I believe can also build hp-ux on them if the =
recipient will=20
take care of the license issues with HP) </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>All are available to anyone to use if =
they pay for=20
shipping.&nbsp; </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV></BODY></HTML>

------=_NextPart_000_0005_01C12B92.A33F9FC0--





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Subject: RE: [parisc-linux] HELP ME PLEASE - d220 Install problem
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how to write a debian parisc iso using easy cd creator
how many iso i need?? step by step

-----Mensaje original-----
De: Matthew Wilcox [mailto:willy@debian.org]
Enviado el: Wednesday, August 22, 2001 8:39 PM
Para: Christian Knoch
CC: parisc-linux@lists.parisc-linux.org
Asunto: Re: [parisc-linux] HELP ME PLEASE - d220 Install problem


On Wed, Aug 22, 2001 at 08:04:27PM -0300, Christian Knoch wrote:
> HELP ME!!!
> i have a d220
> I download a iso image and write a cd, but cannot boot this cd
> how to install debian in D220 step by step please

You're going to have to be a little more specific than that.  Most
problems that get reported as `cannot boot this cd' are caused by using
the incorrect options when burning the CD.  Here's one example:
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-May/012642.htm
l

--=20
Revolutions do not require corporate support.




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Xref: news.gmane.org gmane.linux.ports.parisc:11952

"Christian Knoch" writes...

> how to write a debian parisc iso using easy cd creator
> how many iso i need?? step by step

1.) Download the iso.gz image.
2.) Run md5sum and compare the result with the one on the ftp site
3.) gunzip the image
4.) Use your CD burning software to burn the raw image directly
5.) Try booting the CD, if it doesn't boot post only the relevant console
    messages to the mailing list.

HTH,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Hi, I'm trying to get a C180 booting entirely off the network.  I can load
a lifimage over bootp, however then I'm stuck.  There is a vmlinux
attached to the lifimage, but I can't figure out how to tell the loader to
boot that and use an NFSroot.  I have found a few suggestions (vmlinux
HOME=/ TERM=linux root=/dev/nfs nfsroot=mynfs:/dir) and that dosen't seem
to work.  Do I need a special lifimage?
	Nick





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Subject: RE: [parisc-linux] HELP ME PLEASE - d220 Install problem
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the console return this mensage when boot from p1

cannot find ENTRY_TEST
failed to initialize
ENTRY_INIT
status =3D -4





-----Mensaje original-----
De: Matt Taggart [mailto:taggart@carmen.fc.hp.com]
Enviado el: Thursday, August 23, 2001 1:36 PM
Para: Christian Knoch
CC: parisc-linux@lists.parisc-linux.org
Asunto: Re: [parisc-linux] HELP ME PLEASE - d220 Install problem=20



"Christian Knoch" writes...

> how to write a debian parisc iso using easy cd creator
> how many iso i need?? step by step

1.) Download the iso.gz image.
2.) Run md5sum and compare the result with the one on the ftp site
3.) gunzip the image
4.) Use your CD burning software to burn the raw image directly
5.) Try booting the CD, if it doesn't boot post only the relevant
console
    messages to the mailing list.

HTH,

--=20
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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On Thu, Aug 23, 2001 at 02:48:39PM -0300, Christian Knoch wrote:
> the console return this mensage when boot from p1
> 
> cannot find ENTRY_TEST
> failed to initialize
> ENTRY_INIT
> status = -4

that means it can't find the `boot block' on the CD.

-- 
Revolutions do not require corporate support.




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On Thursday 23 August 2001 18:58, nick@snowman.net wrote:
> Hi, I'm trying to get a C180 booting entirely off the network.  I can load
> a lifimage over bootp, however then I'm stuck.  There is a vmlinux
> attached to the lifimage, but I can't figure out how to tell the loader to
> boot that and use an NFSroot.  I have found a few suggestions (vmlinux
> HOME=/ TERM=linux root=/dev/nfs nfsroot=mynfs:/dir) and that dosen't seem
> to work.  Do I need a special lifimage?
> 	Nick

Hi Nick,

you forgot to mention which kernel version you booted.
In case you use a newer 2.4 kernel you'll have to add "ip=bootp" and should use 
an ip-address instead of <mynfs> in the nfsroot parameter.

Greetings,
Helge




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I'm not even getting that far.  I can't get the linux kernel to start
booting, I always get errors along the lines of 
Current command line:
vmlinux HOME=/ TERM=vt100 root=/dev/nfs nfsroot=172.16.1.1:/mnt
console=ttyS0
 0: vmlinux
 1: HOME=/
 2: TERM=vt100
 3: root=/dev/nfs
 4: nfsroot=172.16.1.1:/mnt
 5: console=ttyS0
Edit which field?
(or 'b' to boot with this command line)? b
Kernel: partition 0 file vmlinux
ERROR: Read from boot device failed (status = -3).
byteio_read: seekread() returned -1 expected 2048

I'm assumeing paramater 0 is set wrong, but I've tried 0/vmlinux and
vmlinux, neither work.  What should I set it to?  Should I use a different
lif image?  Where can I get a lifimage known to work for this?
	Thanks
		Nick

On Thu, 23 Aug 2001, Helge Deller wrote:

> On Thursday 23 August 2001 18:58, nick@snowman.net wrote:
> > Hi, I'm trying to get a C180 booting entirely off the network.  I can load
> > a lifimage over bootp, however then I'm stuck.  There is a vmlinux
> > attached to the lifimage, but I can't figure out how to tell the loader to
> > boot that and use an NFSroot.  I have found a few suggestions (vmlinux
> > HOME=/ TERM=linux root=/dev/nfs nfsroot=mynfs:/dir) and that dosen't seem
> > to work.  Do I need a special lifimage?
> > 	Nick
> 
> Hi Nick,
> 
> you forgot to mention which kernel version you booted.
> In case you use a newer 2.4 kernel you'll have to add "ip=bootp" and should use 
> an ip-address instead of <mynfs> in the nfsroot parameter.
> 
> Greetings,
> Helge
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 





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On Thu, Aug 23, 2001 at 12:58:34PM -0400, nick@snowman.net wrote:
> Hi, I'm trying to get a C180 booting entirely off the network.  I can load
> a lifimage over bootp, however then I'm stuck.  There is a vmlinux
> attached to the lifimage, but I can't figure out how to tell the loader to
> boot that and use an NFSroot.  I have found a few suggestions (vmlinux
> HOME=/ TERM=linux root=/dev/nfs nfsroot=mynfs:/dir) and that dosen't seem
> to work.  Do I need a special lifimage?

Well, I do this all the time, so it does work :-)  All I need to do is
change the NFSROOT in palo's Makefile to my server's IP address.  I'm
still crosscompiling; my string looks like this:
0/vmlinux64 HOME=/ TERM=linux root=/dev/nfs nfsroot=15.1.50.190 ip=bootp

-- 
Revolutions do not require corporate support.




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On Thu, Aug 23, 2001 at 02:21:10PM -0400, nick@snowman.net wrote:
> I'm not even getting that far.  I can't get the linux kernel to start
> booting, I always get errors along the lines of 
> Current command line:
> vmlinux HOME=/ TERM=vt100 root=/dev/nfs nfsroot=172.16.1.1:/mnt
> console=ttyS0
>  0: vmlinux
>  1: HOME=/
>  2: TERM=vt100
>  3: root=/dev/nfs
>  4: nfsroot=172.16.1.1:/mnt
>  5: console=ttyS0
> Edit which field?
> (or 'b' to boot with this command line)? b
> Kernel: partition 0 file vmlinux
> ERROR: Read from boot device failed (status = -3).
> byteio_read: seekread() returned -1 expected 2048

You're running into a known palo bug.  Sometimes when you're editing
entries it does this.  No-one's tracked down the cause yet (and it
is sporadic).

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] C180 netbooting
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Could you email or point me to the lifimage you use?
	Thanks
		Nick

On Thu, 23 Aug 2001, Matthew Wilcox wrote:

> On Thu, Aug 23, 2001 at 12:58:34PM -0400, nick@snowman.net wrote:
> > Hi, I'm trying to get a C180 booting entirely off the network.  I can load
> > a lifimage over bootp, however then I'm stuck.  There is a vmlinux
> > attached to the lifimage, but I can't figure out how to tell the loader to
> > boot that and use an NFSroot.  I have found a few suggestions (vmlinux
> > HOME=/ TERM=linux root=/dev/nfs nfsroot=mynfs:/dir) and that dosen't seem
> > to work.  Do I need a special lifimage?
> 
> Well, I do this all the time, so it does work :-)  All I need to do is
> change the NFSROOT in palo's Makefile to my server's IP address.  I'm
> still crosscompiling; my string looks like this:
> 0/vmlinux64 HOME=/ TERM=linux root=/dev/nfs nfsroot=15.1.50.190 ip=bootp
> 
> -- 
> Revolutions do not require corporate support.
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 





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Subject: Re: [parisc-linux] C180 netbooting
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On Thursday 23 August 2001 20:38, Matthew Wilcox wrote:
> On Thu, Aug 23, 2001 at 12:58:34PM -0400, nick@snowman.net wrote:
> > Hi, I'm trying to get a C180 booting entirely off the network.  I can
> > load a lifimage over bootp, however then I'm stuck.  There is a vmlinux
> > attached to the lifimage, but I can't figure out how to tell the loader
> > to boot that and use an NFSroot.  I have found a few suggestions (vmlinux
> > HOME=/ TERM=linux root=/dev/nfs nfsroot=mynfs:/dir) and that dosen't seem
> > to work.  Do I need a special lifimage?
>
> Well, I do this all the time, so it does work :-)  All I need to do is
> change the NFSROOT in palo's Makefile to my server's IP address.  I'm
> still crosscompiling; my string looks like this:
> 0/vmlinux64 HOME=/ TERM=linux root=/dev/nfs nfsroot=15.1.50.190 ip=bootp

I think this is the point. If you hardcode it in the Makefile and boot this lifimage
directly without user-interaction (bo lan ipl) it works. If you try to change it at
the prompt it won't boot. (I've just tested that)

Helge




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Well thanks to your suggestion I tried not even attempting to change the
params and just see what happened.  what I got was
The 64-bit Kernel has started...
Determining PDC firmware type: Ancient Box (bus_id = 0x0)
Kernel panic: This system will probably never run Linux.

In idle task - not syncing

Is that as bad as it sounds?  Can I update the PDC firmware, or would that
not help?
	Thanks
		Nick

On Thu, 23 Aug 2001, Matthew Wilcox wrote:

> On Thu, Aug 23, 2001 at 02:21:10PM -0400, nick@snowman.net wrote:
> > I'm not even getting that far.  I can't get the linux kernel to start
> > booting, I always get errors along the lines of 
> > Current command line:
> > vmlinux HOME=/ TERM=vt100 root=/dev/nfs nfsroot=172.16.1.1:/mnt
> > console=ttyS0
> >  0: vmlinux
> >  1: HOME=/
> >  2: TERM=vt100
> >  3: root=/dev/nfs
> >  4: nfsroot=172.16.1.1:/mnt
> >  5: console=ttyS0
> > Edit which field?
> > (or 'b' to boot with this command line)? b
> > Kernel: partition 0 file vmlinux
> > ERROR: Read from boot device failed (status = -3).
> > byteio_read: seekread() returned -1 expected 2048
> 
> You're running into a known palo bug.  Sometimes when you're editing
> entries it does this.  No-one's tracked down the cause yet (and it
> is sporadic).
> 
> -- 
> Revolutions do not require corporate support.
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 





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On Thu, Aug 23, 2001 at 02:57:17PM -0400, nick@snowman.net wrote:
> Well thanks to your suggestion I tried not even attempting to change the
> params and just see what happened.  what I got was
> The 64-bit Kernel has started...
> Determining PDC firmware type: Ancient Box (bus_id = 0x0)
> Kernel panic: This system will probably never run Linux.
> 
> In idle task - not syncing
> 
> Is that as bad as it sounds?  Can I update the PDC firmware, or would that
> not help?
> 	Thanks

You should run a 32-bit kernel on the C180 :-)

-- 
Revolutions do not require corporate support.




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Ok, only one more question hopefully.  I updated my PDC firmware from v2.7
to v6.1, that went fine.  I tried booting a 32bit lifimage, that worked
untill it got to the SCSI, at which point it spat out lots of errors for
id's 0, 1 and 2, then locked.  Is there something special I need to do to
keep C180's scsi happy?  I am useing the debian iso's lifimages right now.
	Nick

On Thu, 23 Aug 2001, Matthew Wilcox wrote:

> On Thu, Aug 23, 2001 at 02:57:17PM -0400, nick@snowman.net wrote:
> > Well thanks to your suggestion I tried not even attempting to change the
> > params and just see what happened.  what I got was
> > The 64-bit Kernel has started...
> > Determining PDC firmware type: Ancient Box (bus_id = 0x0)
> > Kernel panic: This system will probably never run Linux.
> > 
> > In idle task - not syncing
> > 
> > Is that as bad as it sounds?  Can I update the PDC firmware, or would that
> > not help?
> > 	Thanks
> 
> You should run a 32-bit kernel on the C180 :-)
> 
> -- 
> Revolutions do not require corporate support.
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 





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On Thu, Aug 23, 2001 at 03:33:36PM -0400, nick@snowman.net wrote:
> Ok, only one more question hopefully.  I updated my PDC firmware from v2.7
> to v6.1, that went fine.  I tried booting a 32bit lifimage, that worked
> untill it got to the SCSI, at which point it spat out lots of errors for
> id's 0, 1 and 2, then locked.  Is there something special I need to do to
> keep C180's scsi happy?  I am useing the debian iso's lifimages right now.

I don't recognise this problem, can you post the SCSI messages?

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] C180 netbooting
Date: Thu, 23 Aug 2001 22:19:16 -0400 (EDT)
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Cc: Helge Deller <deller@gmx.de>, parisc-linux@lists.parisc-linux.org
To: Matthew Wilcox <willy@debian.org>
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SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 86, options 0
scsi0: Revision 0x2
Post test1, istat 01, sstat0 00, dstat 84
sim700: WARNING IRQ probe failed, (returned 0)
scsi0: Good, target data areas are dma coherent
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
scsi0: Unable to abort command for target 0
scsi0: Unable to send Bus Device Reset for target 0
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 00, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00088018 (script[0x0006]), dsps = 00088448, target = 0
scsi0: Failing command for ID0
scsi0: Unable to abort command for target 0
scsi0: Unable to abort command for target 1
scsi0: Unable to send Bus Device Reset for target 1
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 00, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00088018 (script[0x0006]), dsps = 00088448, target = 0
scsi0: Failing command for ID0
scsi0: Unable to abort command for target 1
  Vendor:           Model:                   Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 00
scsi0: Unable to abort command for target 2
scsi0: Unable to send Bus Device Reset for target 2
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 00, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00089018 (script[0x0406]), dsps = 00089448, target = 0
scsi0: Failing command for ID1
scsi0: Unable to abort command for target 2


If you need more of the boot messages I can provide them.
	Nick

On Fri, 24 Aug 2001, Matthew Wilcox wrote:

> On Thu, Aug 23, 2001 at 03:33:36PM -0400, nick@snowman.net wrote:
> > Ok, only one more question hopefully.  I updated my PDC firmware from v2.7
> > to v6.1, that went fine.  I tried booting a 32bit lifimage, that worked
> > untill it got to the SCSI, at which point it spat out lots of errors for
> > id's 0, 1 and 2, then locked.  Is there something special I need to do to
> > keep C180's scsi happy?  I am useing the debian iso's lifimages right now.
> 
> I don't recognise this problem, can you post the SCSI messages?
> 
> -- 
> Revolutions do not require corporate support.
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 





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Do you need any more boot messages?  I sent you the ones that looked
usefull/important, however I can send you the entire boot log. 
	Nick
> 
> I don't recognise this problem, can you post the SCSI messages?
> 
> -- 
> Revolutions do not require corporate support.
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 





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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] iotree thoughts
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Xref: news.gmane.org gmane.linux.ports.parisc:11968

Matthew Wilcox wrote:
> I looked through the Raven ERS, it wasn't too helpful.  I managed to find
> the Dino driver in the HPUX source tree.... it doesn't seem to make the
> call itself, but instead:

[...]


I was confused. The Dino built-in discovery doesn't make PDC calls.

HPUX 11.01 (9905 release?) does make PDC calls in the boot initialization
sequence.  IIRC, This associates PCI device numbers with slot numbers
printed on the back of the machine. Useful for defective FRU ("Field
Replacable Unit") isolation/error reporting.  AFAIK, This only works
for platforms with bridge-mode Dino - ie B1XX/CXXX workstations.
(Calls are appended for interested folks).

...
> So it seems to me that we shouldn't do bus-walks underneath Dino, but
> rely on PDC telling us about the device if it's attached.

Uhm, "underneath" is ambiguous since both built-ins and PCI devices
are heirarchially below "dino" (iotree view - not HW view).
We need to do PCI bus walks for PCI devices.

I'll assume your statement only refers to Dino built-ins and agree.
FWIW, same is true for LASI devices.

grant


Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253

    /*
     * Get physical platform information
     */
    status = hversion_pdc_call(
                 3,(u_int)PDC_ARG2_IS_RADDR, 10, (ulong_t)PDC_PCI,
                 (ulong_t)PDC_PCI_GET_IFACE_INFO, (ulong_t)&(DINO(this)->ifinfo)
,
                 (ulong_t)this->base_addr,(ulong_t)0,(ulong_t)0,(ulong_t)0,
                 (ulong_t)0,(ulong_t)0,(ulong_t)0);
...
    /*
     * Total number of devices to get "slot info" for - all the slots plus
     *   all the built-ins
     */
    num_devs = DINO(this)->ifinfo.num_slots + DINO(this)->ifinfo.num_built_ins;
...
    for (slot_idx = 0; slot_idx < num_devs; slot_idx++) {
        ulong_t slot_path[32];
        status = hversion_pdc_call(
                     4, (u_int)PDC_ARG2_IS_RADDR, 32, (ulong_t)PDC_PCI,
                     (ulong_t)PDC_PCI_GET_SLOT_INFO, (ulong_t) slot_path,
                     (ulong_t)this->base_addr, (ulong_t)slot_idx,(ulong_t)0,
                     (ulong_t)0, (ulong_t)0, (ulong_t)0, (ulong_t)0);
...





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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: debian on b180L
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To: "Andrew Goldfinch" <andrew@isa.net.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:11969

"Andrew Goldfinch" wrote:
> I just got one of these b180L hp boxes from a mate, and want to run =
> debian on it. Have you tried this? What is the status of Woody for RISC =
> on these boxes?

I haven't tried this recently (ie past 6 monthes or so) but others have
reported success. See the p-l mail archives at http://lists.parisc-linux.org

IIRC, there are some problems with PS/2 keyboard handling but those are mostly
fixed or have kernel patches posted in the mail archives.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: [parisc-linux] hang on C200 after 'Set default PSW W bit to 0' in 0.9.2
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I just received my C200, 512 Mb, 9 Gb, Visualize FX-4 - all in all a
cool piece of equipment.

Next step: installing Linux.

So I downloaded the 0.9.2 iso from puffin, the md5sum was OK, I made a
CD, I could read that CD on my Intel linux box, all seemed fine.

The C200 did boot HPUX-10.2, so the hardware seemed functional.

So I entered my new CD and rebooted the C200. I set the clock, and typed
'BOOT SESCSI.2'. It found the CD, some messages about memory, then the
line

Set default PSW W bit to 0

and then nothing.

I know booting with a keyboard/mouse attached to the C200 would be
risky, but I don't think it should go wrong so early in the booting
process?

I tried to boot it without keyboard/mouse attached, but Minicom kept
saying it was 'offline', and I didn't get anything on the monitor
attached to the C200. I am suspecting this serial cable (do I need a 1:1
or an interlink serial cable? This is supposed to be a 1:1 one).

Could this be a firmware-matter? I looked into updating the firmware,
but I'll need some additional scsi-converter to connect my DDS-2 drive
to the external scsi-port, since there seems to be no other way to
update firmware.

Should there happen something after 'Set default PSW W bit to 0' with
this setup? Is the standard command-line of this image correct? I tried
changing it to 'sti=1' but that didn't make any difference....

Thanks,
Jurriaan
-- 
The Swedish Chef has been assimilated. "Borg borg borg!"
GNU/Linux 2.4.8-ac9 SMP/ReiserFS 2x1402 bogomips load av: 0.53 0.15 0.05




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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Status: HP 9000/856, E55 Server with PA-Linux
Date: Sat, 25 Aug 2001 23:07:52 +0200
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To: "parisc-linux@lists.parisc-linux.org" <parisc-linux@lists.parisc-linux.org>,
	"MEYER,ALAN C. (HP-FtCollins,ex1)" <alan_meyer@hp.com>
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Congratulations, PA Linux is frowing and growing .....

After this 3/4 year, I want to ask again, if there are
news concerning the support or even the documentation of
the proprietary HP machines, like e.g. the E55 Server (9000/856).

As you know from the list, I had success in booting Linux
on this E55 with a self written "PDC console device driver".
So it was possible to boot E55 as diskless machine. But
a "diskless server" is not the best....
But it worked even with login, etc....

For running Linux, only three devices are important to
activate (2 of them necessary, the 3rd is optional):
* MUX multi serial port (also for serial console,
	which I have work arounded with my PDC driver...)
* SCSI Devices
* optional: Parallel interface

I hope you can tell me, that there will be the support
or the documentation, so that I can write or help writing
drivers, if my spare time is enough and my skills will
be sufficient, ...

Please remail...

With friendly regards
	Christoph P.


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at





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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] XFree86 - white pixel is blue
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To: Chuck Slivkoff <charles_slivkoff@hp.com>
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On Tuesday 21 August 2001 08:25, Grant Grundler wrote:
> Chuck Slivkoff wrote:
> > I just loaded the ISO on a 712/60 and setup XFree86 to use the fbdev
> > driver. It seems to be OK, with the exception that "white" is "blue".
>
> This sounds like a a bug.
> The ESIEE guys will be around tomorrow and I can ask them about it.

Hi,

I can confirm this behaviour now on my 715/64 too.

The only thing I recently changed on this machines was an upgrade to 
XFree 4.1.0-2 and nothing else. Furthermore, since this happens both
with an old kernel (2.4.0-32) and the recent kernel (2.4.9-pa5) I'm
assuming that it looks like a bug in the XFree86-fbdev driver.

Maybe someone on this list knows more, else I'll take a closer look at 
it tomorrow,

Helge




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Xref: news.gmane.org gmane.linux.ports.parisc:11973

I've been trying to get a newer kernel installed but am not having much
luck. Followed the directions on parisc-linux.org to build it, which have
worked fine, but for some reason the kernels refuse to boot. The palo
readme file says it should automagically boot when placed in the correct
location... My palo.conf had '2/vmlinux-2.4.0' as the boot kernel, which
I then changed to '2/vmlinux-2.4.9' (partition 2 is /boot once mounted),
ran palo (no errors, identified 2/vmlinux-2.4.9 as the new kernel),
rebooted - and I get the error that the system can't grok the kernel
executable format and then a 'failed to boot' message.

The earlier thread on whether or not 'make palo' was needed came to mind,
but since I was leaving it overnight to compile anyway I didn't care how
much time it took.

Got this same error a couple kernels ago (2.4.6?) and went back to 2.4.0,
since it wasn't really causing any problems. This is starting to get
irritating, though. The system is a 715/100, 128MB, 4.3G HD. Started as
0.9 and 'apt-get' upgraded to whatever's current now. I *did* have to
'apt-get install gcc', though - even though dselect said it was already
installed, the system couldn't find gcc, but the apt-get installed it as
if it wasn't there. Weird...

Anyway, any and all input appreciated!





From - Thu Nov 08 21:18:56 2018
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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: [parisc-linux] Building from scratch.
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Xref: news.gmane.org gmane.linux.ports.parisc:11974

Parisc'ers,

I was recently trying to build the toolchain from scractch on
an x86 box.

I've run into the following stumbling block:

a) glibc configure requires that I use "--enable-hacker-mode"

This really isn't documented, but It's not uncommon and I got around
it very quickly ;)

The second issue was:

b) Some strange asm problem while building glibc.

gcc ../sysdeps/unix/sysv/linux/hppa/sysdep.c -c -O2 -Wall -Winline -Wstrict=
-prototypes -Wwrite-strings -g      -I../include -I. -I/mnt/fatty/palinux/b=
uild/glibc/csu -I.. -I../libio  -I/mnt/fatty/palinux/build/glibc -I../sysde=
ps/hppa/elf -I../linuxthreads/sysdeps/unix/sysv/linux/hppa -I../linuxthread=
s/sysdeps/unix/sysv/linux -I../linuxthreads/sysdeps/pthread -I../linuxthrea=
ds/sysdeps/unix/sysv -I../linuxthreads/sysdeps/unix -I../linuxthreads/sysde=
ps/hppa -I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux -I..=
/sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/u=
nix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix -I../sysdeps/posix -I../s=
ysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I=
../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/f=
pu -I../sysdeps/hppa -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sys=
deps/generic   -D_LIBC_REENTRANT -include ../include/libc-symbols.h     -DH=
AVE_INITFINI -o /mnt/fatty/palinux/build/glibc/csu/sysdep.o
=2E./sysdeps/unix/sysv/linux/hppa/sysdep.c: In function `syscall':
=2E./sysdeps/unix/sysv/linux/hppa/sysdep.c:43: invalid register name `r28' =
for register variable
=2E./sysdeps/unix/sysv/linux/hppa/sysdep.c:44: invalid register name `r21' =
for register variable
=2E./sysdeps/unix/sysv/linux/hppa/sysdep.c:44: invalid register name `r22' =
for register variable
=2E./sysdeps/unix/sysv/linux/hppa/sysdep.c:44: invalid register name `r23' =
for register variable
=2E./sysdeps/unix/sysv/linux/hppa/sysdep.c:44: invalid register name `r24' =
for register variable
=2E./sysdeps/unix/sysv/linux/hppa/sysdep.c:44: invalid register name `r25' =
for register variable
=2E./sysdeps/unix/sysv/linux/hppa/sysdep.c:44: invalid register name `r26' =
for register variable
=2E./sysdeps/unix/sysv/linux/hppa/sysdep.c:45: Can't find a register in cla=
ss `GENERAL_REGS' while reloading `asm'.
make[2]: *** [/mnt/fatty/palinux/build/glibc/csu/sysdep.o] Error 1
make[2]: Leaving directory `/mnt/fatty/palinux/src/glibc/csu'
make[1]: *** [csu/subdir_lib] Error 2
make[1]: Leaving directory `/mnt/fatty/palinux/src/glibc'
make: *** [all] Error 2


Background:

I started by building the tools, as per the instructions on the website.

- Built binutils
- Partially build gcc
- Unpack and configure kernel
- Build glibc...

At which I'm stuck. My hppa bin directory has the following built tools:
(and is on my path)

gccbug                hppa-linux-cpp      hppa-linux-objdump
gcov                  hppa-linux-gasp     hppa-linux-ranlib
hppa-linux-addr2line  hppa-linux-gcc      hppa-linux-readelf
hppa-linux-ar         hppa-linux-ld       hppa-linux-size
hppa-linux-as         hppa-linux-nm       hppa-linux-strings
hppa-linux-c++filt    hppa-linux-objcopy  hppa-linux-strip

The configure for glibc does complain about:

[snip]
checking for hppa-linux-mig... (cached) mig
configure: warning:=20
*** An auxiliary program is missing or too old;
*** some features will be disabled.
*** Check the INSTALL file for required versions.
checking whether ranlib is necessary... (cached) no
[snip]

But continues on. I've met all the requirements in INSTALL, with=20
regards to tools and their versions.

Any clues?

Cheers,
Carlos.






From - Thu Nov 08 21:18:56 2018
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---------- Forwarded message ----------
Date: Sun, 26 Aug 2001 16:23:40 -0700
From: Sierra Times.com <citizen@mindspring.com>
To: SierraTimes.com <sierratimesalert@involved.com>
Subject: Special Ranch Update: Sun 08.26.01

http://www.SierraTimes.com
Sierra Times Update
For Sun 08.26.01 16:30 Sierra Time
More news since this morning, and some announcements...
(This is a Special Alert - Please Read)

Klamath: Cop in Exile Speaks Out
(An interview with Lt. Jack Redfield)
Sean Finnegan - Sierra Times
http://www.sierratimes.com/archive/files/aug/26/arsf082601.htm

Jim Bell Sentenced To Ten Years In Prison and Lifelong Poverty
Sierra Times Exclusive
http://www.sierratimes.com/archive/files/aug/26/arex082601.htm

Coming: More from Klamath, and Tracie Sullivan on location to cover how the
Utah GOP votes to GET US OUT OF THE United Nations. Only at the News Ranch.

New Features Coming to at Sierra Times.com (Heads Up everyone!)

Introducing "18 Wheels at the News Ranch"
With Charlie Lightfoot
Welcome to a new feature here at the Ranch. We've corralled an old truck
driver with 20 years over-the-road experience to give us a trucker's view o=
f
all the goings on with the trucking industry in the U.S. So watch for
regular features from Charlie as he adds his own two cents to the hornet's
nest already stirred up by the feds.

 "18 Wheels at the News Ranch" is dedicated and produced by the Truckers,
and for the Truckers. To those that keep North America rolling, Thank you.
Your input is more than welcome.
http://www.sierratimes.com/18wheels.htm

Whack'em & Stack'em Updates
They say in America, there's so much shooting by police these days that you
need a 'score card' to keep track. So we've created one at Sierra Times.com=
=2E
The Whack'em & Stack'em White Paper has started a firestorm of information
and feedback coming in to the News Ranch - on a subject we've been covering
for a long time. We'll be updating this page as the 'hits' keep coming.
Check it out:
http://www.sierratimes.com/whacknstack.htm

Child Snatch and Sell News' - with Ray Thomas
You like Ray Thomas' Daily Nuggets? Bullcutter Weeklies? Well, he's adding =
a
new feature. "Child Snatch and Sell News'- only at Sierra Times.com

Is your government paying the local "authorities" to snatch your children o=
n
any pretext they can come up with and sell them? Think not? The "child
protectors" claim that child abuse is reaching epidemic proportions. It is
not. Only the numbers of "reports" they get are increasing and that's
because there is no penalty for making a false report under the "Good
Samaritan Laws."

Lawyers today routinely advise clients to allege child abuse through one of
their many "hot lines" because it can be anonymous and it will divert their
opponent's attention, and their money, from fighting the original
litigation. With no penalty for false reports, there's no price to pay, eve=
n
if they're caught. There's a (to the feds) good reason for them to do this
and we tell you what it is inside.
http://www.sierratimes.com/childsnatch.htm

Roadhouse Sierra News:
Helen Chenoweth-Hage said in her recent speech about Klamath Falls "Follow
the Money". So we did. Henrietta Bowman went on a rampage, which results in
a 5 part expose on "Klamath: Following the Money Trail" This Special Series
Starts Tuesday - only at Roadhouse Sierra.

Our Homeschool Gal, Charlene Sanders take on public education at a new
level - she's moving to the Roadhouse.

In Sierra Sue's Medicine Cabinet, an inside look at the Health Care
profession few people want to talk about in "Diary of a Hospice Nurse.

Nancy Johnson, back from a week of bed rest, is fired up again. She's be
back to the Legal Eagle's Nest with the "Why People Hate Lawyers" Series.
And it's only because J.J. doing nursing duty at home while working full
time, but the next installment of Online Sierra is coming!

One more note: The "Sierra Times Tradin' Post" Returns on September 1, 2001
(we know some of you missed that) Discounts for all Roadhouse Members!
Included in the ol' ranch store will be Sierra Times hats, shirts, mouse
pads and even coffee mugs. And of course, you'll need something to go in
those coffee mugs - so the world's most politically incorrect coffee -
'Sierra Negro Blend' and others will soon return to the News Ranch.


What allows us to bring you the most comprehensive Real News on the
Internet? Our Members. Memberships for Roadhouse Sierra keep this
entire site operating. It's less than a penny a day, and we've even made
signing up easier. Please help us keep the News Ranch going.
Drop on by for a look:
http://www.sierratimes.com/members.htm

Remember: This News Site is now updated 24 hours a day - everyday.
Climb on board...






SierraTimes.com
An Internet Publication for Real Americans.
=A92001 Sierra Times.com - All Rights Reserved
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From - Thu Nov 08 21:18:56 2018
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Subject: [parisc-linux] Whoops...
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My apologies - I mistyped an address entry and ended up sending the Sierra
Times entry to the list instead of a test account on my 715/100.

Me bad :-(





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Quoth Tom:
> My apologies - I mistyped an address entry and ended up sending the Sierra
> Times entry to the list instead of a test account on my 715/100.
> 
> Me bad :-(

It was - um - interesting.  =)

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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Xref: news.gmane.org gmane.linux.ports.parisc:11978

Back to ksoftirq_CPU? problem.
I test it on a Pentium box and just finished to test on a ss20 (sunsparc20)
and I for those two diferent machine I only note Sleeping process as you
notice on a 715 model.
We can be quiet sure that it is only a problem for some hppa model.

Regards,
     Joel



                                                                           =
                                       =20
                    Helge Deller                                           =
                                       =20
                    <deller@gmx.d        To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD                             =20
                    e>                   cc:                               =
                                       =20
                                         Subject:     Re: [parisc-linux] Ke=
rnel 2.4.9-pa2?                        =20
                    21-08-01                                               =
                                       =20
                    11:11 PM                                               =
                                       =20
                                                                           =
                                       =20
                                                                           =
                                       =20



On Tuesday 21 August 2001 15:12, you wrote:
> Hi Helge,
>
> Sorry to have not enough knowlegde to help the debuging.
>
> Regarding IA box I do not yet have the opportunity to recompile a recent
> kernel 2.4 but I will try asap.
>
> Kind regards,
>      Joel

Hi Joel,

No problem - I still think it is a general Linux-kernel issue and it will
surely fixed in the next version.
And thanks a lot for pointing us to this bug,

Helge





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From - Thu Nov 08 21:18:56 2018
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From: "Pedot, Wolfgang" <wpedot@harris.com>
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Subject: [parisc-linux] Crashing Kernel 2.4.9 -pa5 on 715/75
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Hi,

I=B4m having big problems with booting a 2.4.9-pa5 kernel on my 715/75. =
IPL loads
the segments but after "branching to kernel entry point 0x001000d0" I =
get a huge
Stack-dump and thats all. I read that this kernel works on 715/80, can =
anybody
send me a working config? I used the default-config comming with the =
kernel and
my old working 2.4.7 config without any luck....

greetings
Wolfgang

PS: If anybody can use the stack-dump, here it is:

Dumping Stack from 10058000 to 10058940:
8000 00000000 00000040 00000000 00000000 102c1fa0 00000000 00000000 =
ffffffff
8020 00000003 00000000 00000000 00000000 00000000 00000000 ffffffff =
1007003c
8040 102bf220 00000036 10078000 10334000 102c8600 00000000 00000000 =
00000000
8060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 =
00000000
8080 00000000 10334000 10334000 10078000 10070000 00000000 10060098 =
10334098
80a0 00000000 102c0ef4 100580a8 100580a8 00000000 00000000 00000000 =
00000000
80c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
10058000
80e0 1011af58 00000000 00000000 00000000 00000000 00000035 00000000 =
00000035
8100 00000000 00000000 00000000 00000000 00000000 00000000 80000000 =
00000000
8120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
8140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
8160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
8180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
81a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
81c0 fffffeff 00000000 ffffffff 00000000 102c2f60 ffffffff ffffffff =
ffffffff
81e0 ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff =
ffffffff
8200 ffffffff 00000f92 00000f92 00000400 00000400 ffffffff ffffffff =
ffffffff
8220 ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000 =
00000000
8240 00000000 00000000 00000000 00000000 00000000 00000000 0000f927 =
00800327
8260 102c4010 100ffaf3 000ff000 1027ac60 10784da0 0004000e fc4ff000 =
fc4ff000
8280 00000089 101193f0 0006e180 0000f927 00800327 1033f810 1033b667 =
102f4f94
82a0 00000024 0000003c 0000003e 102c1810 00000001 1033b667 00000089 =
00000000
82c0 10100418 0000f927 00000000 00000000 40800000 00000000 0000f927 =
103437c8
82e0 1028f344 10381120 00000089 fffbf090 0006e180 0000f927 00008124 =
00000000
8300 41800000 10158fe4 00000010 00000010 00000000 00000000 00000003 =
00000000
8320 10334554 1028f530 00000000 103820c0 ffcc6c00 ffcc6c00 41000000 =
00000000
8340 ffcc6c00 10158fe4 40800000 00000000 41000000 00000000 00000003 =
00000000
8360 10334594 1028f33c 00000000 10382e40 41800000 ffcc6c00 40000000 =
00000000
8380 40000000 10158a14 40800000 00000000 41000000 00000000 fc4ff000 =
00000001
83a0 00008124 10334594 000000f0 10382240 00000000 10057000 10786040 =
00000000
83c0 10278784 10132f24 000000a0 00000000 30313233 34353637 fc4ff000 =
00000001
83e0 000000f0 fffbf090 000000f0 103820c0 00000000 00646566 00000020 =
00000000
8400 103346d0 1012f078 f0000694 08000059 00000001 10058700 10106cf8 =
00000001
8420 000000f0 00000000 000000f0 10382e40 002c9000 00000000 102c8040 =
102c8060
8440 102c81fc 00000000 00000000 00000000 1005844c 00000000 00000000 =
00000000
8460 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
8480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
84a0 00000000 00000000 00000000 10106c4c 00000000 00000000 00000000 =
00000000
84c0 10334000 00000000 56554100 00000000 00000000 00000000 00000000 =
00000000
84e0 00000000 00000000 00000000 1010042c 00000000 00000000 00000000 =
00000000
8500 00000000 56554100 00000000 00000000 00000000 00000000 00000000 =
00000000
8520 00000000 00000000 00000000 102f514c 00000000 00000000 00000000 =
00000000
8540 102c2010 10058000 102c8600 10334000 10332fd8 10332f5c 10285de8 =
10286104
8560 10334000 10332fd8 10332f08 102fae94 00000000 00000000 00000000 =
00000000
8580 10332fd8 102c2010 10058000 102c8600 10334000 102c4250 10332f54 =
0004000e
85a0 fc4ff000 102c2010 10058000 102fc364 10334000 10332fd8 10332f2c =
00000000
85c0 1034bacc 102d2cbc 00000040 102d2cbc 00000040 102910d8 000ff000 =
001a5a59
85e0 102f4f94 0004000e fc4ff000 102cfd08 10000080 1034bb88 1034bacc =
102d2cbc
8600 00000040 102d3810 102d3e78 00000040 00000000 00000019 0000000a =
102833c4
8620 102c2010 10058000 1034b810 10119854 000000bc 00000200 00000001 =
10343814
8640 ffffffff 102c1810 00000000 102d3ea4 102c1ff0 00000000 0004000e =
fc4ff000
8660 102cfd08 10338010 10338010 102ee770 00000006 10338394 08000059 =
f0000694
8680 00000001 00000000 f000013c 000ff000 001a5a59 10283401 0004000e =
fc4ff000
86a0 102cfd08 10338010 10338394 102fc6d0 00000006 10338394 08000059 =
f0000694
86c0 1033b689 102f4f94 00000046 0000003c 0000003e 102c1810 00000001 =
1033b689
86e0 10338010 1033b646 1033b643 00000006 10338394 00000000 00000000 =
00000000
8700 0006000f 1033b010 102fc6d0 1034d010 00000008 1034b810 00000013 =
0000002f
8720 102d3ea4 102c1ff4 0004000e 102f4f94 001a5a59 000ff000 f000013c =
00000000
8740 00000001 08000059 f0000694 00000000 00000000 1034d068 00000003 =
00000000
8760 00000093 00000002 00000093 102aa010 00000000 0000002f 10058940 =
102fc684
8780 0000001f 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
87a0 00000000 00000000 00000000 00000000 00000000 00000000 40800000 =
00000000
87c0 ffcc6c00 ffcc6c00 7f7fffff ffffffff 7f7fffff ffffffff 00000000 =
00000000
87e0 00000000 00000000 41800000 00000000 00000010 00000010 00000000 =
00000000
8800 ffcc6c00 ffcc6c00 41000000 00000000 40800000 00000000 ffcc6c00 =
ffcc6c00
8820 41000000 00000000 ffcc6c00 ffcc6c00 40800000 00000000 41000000 =
00000000
8840 40300000 00000000 40200000 00000000 40200000 00000000 41800000 =
ffcc6c00
8860 40000000 00000000 40000000 00000000 40800000 00000000 41000000 =
00000000
8880 00000000 00000000 00000000 00000000 00000000 00000000 00000000 =
00000000
88a0 00000000 00000000 1010d3a4 1010d3a8 000000a0 00000000 00000001 =
00000000
88c0 0000000f 00000004 0e781096 00000000 0000000c 00000010 ffffffff =
00000000
88e0 ffffffff 100586cc 1033b668 10338244 00000000 00000000 00000000 =
00000000
8900 f000013c 102bf220 10058580 00000000 0004000e 00000000 000000f0 =
102c3768
8920 00000002 102c3010 102c376c 10107748 00000000 00000000 00000000 =
00000000

Kernel Fault: Code=3D26 regs=3D10058700 (Addr=3D0000000c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001111
r0-3     00000000 1033b010 102fc6d0 1034d010
r4-7     00000008 1034b810 00000013 0000002f
r8-11    102d3ea4 102c1ff4 0004000e 102f4f94
r12-15   001a5a59 000ff000 f000013c 00000000
r16-19   00000001 08000059 f0000694 00000000
r20-23   00000000 1034d068 00000003 00000000
r24-27   00000093 00000002 00000093 102aa010
r28-31   00000000 0000002f 10058940 102fc684
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1010d3a4 1010d3a8
 IIR: 0e781096    ISR: 00000000  IOR: 0000000c
 ORIG_R28: 00000001






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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Crashing Kernel 2.4.9 -pa5 on 715/75
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> I?m having big problems with booting a 2.4.9-pa5 kernel on my 715/75. IPL loads
> the segments but after "branching to kernel entry point 0x001000d0" I get a huge
> Stack-dump and thats all. I read that this kernel works on 715/80, can anybody
> send me a working config? I used the default-config comming with the kernel and
> my old working 2.4.7 config without any luck....

Do you have the System.map file that correspond to this kernel? 

randolph
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On Fri, Aug 24, 2001 at 11:59:25PM -0600, Grant Grundler wrote:
> I was confused. The Dino built-in discovery doesn't make PDC calls.

OK, that clears that up :-)

> > So it seems to me that we shouldn't do bus-walks underneath Dino, but
> > rely on PDC telling us about the device if it's attached.
> 
> Uhm, "underneath" is ambiguous since both built-ins and PCI devices
> are heirarchially below "dino" (iotree view - not HW view).
> We need to do PCI bus walks for PCI devices.

I mean native buswalks.  PCI buswalks are outside the scope of this topic.

> I'll assume your statement only refers to Dino built-ins and agree.
> FWIW, same is true for LASI devices.

Hmm.  OK.

-- 
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On Sun, Aug 26, 2001 at 07:55:46AM -0800, Tom wrote:
> I then changed to '2/vmlinux-2.4.9' (partition 2 is /boot once mounted),
> ran palo (no errors, identified 2/vmlinux-2.4.9 as the new kernel),
> rebooted - and I get the error that the system can't grok the kernel
> executable format and then a 'failed to boot' message.

You're probably trying to boot a lifimage (which is what `make palo' produces).
palo will only boot a raw kernel -- ie the vmlinux.

-- 
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On Sun, Aug 26, 2001 at 04:27:54PM -0400, Carlos O'Donell Jr. wrote:
> I started by building the tools, as per the instructions on the website.
> 
> - Built binutils
> - Partially build gcc
> - Unpack and configure kernel
> - Build glibc...

Where did you get glibc from?  The only place with current patches is the
Debian package.  Our CVS is terribly out of date.

-- 
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Did anyone have any luck installing parisc-linux on HP visualize C360 (785)?

Marcin Kurc
CAD Systems Administrator
Cooper-Standard Automotive





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Subject: Re: [parisc-linux] visualize C360/785 install
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On Mon, Aug 27, 2001 at 04:24:08PM -0400, Kurc, Marcin A. wrote:
> Did anyone have any luck installing parisc-linux on HP visualize C360 (785)?

Ought to work.  Don't have one here, but Richard has one.

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] [0.9.2] Can't install gcc-3.0, dependency problem
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Hi all,

  I am trying to install pa-risc Linux on a B180L (32-bit kernel only)

  For the life of me, I can't get gcc-3.0 to install due to a dependency
loop that I can't break.

  cpp-3.0 depends on gcc-3.0-base.  (see output below)

  /etc/apt/sources.list is:

deb http://http.us.debian.org/debian unstable main contrib non-free

  If I force install the cpp-3.0 package, dselect removes it the next time
around.  (it doesn't like broken dependencies)

  Browsing through the archives didn't shed any light.  There was a
problem a little while back on the 64-bit compliation environment, but
that was just a simple apt-get dist-upgrade to fix.

  Box was installed from the 0.9.2 ISO (loopback mounted from my FreeBSD
box and served via. http).  The netboot/LIF image from the 0.9.2 CD was
used to tftp boot.  Base install was pulled from the 0.9.2 ISO.  The box
was update/dist-upgraded with the above sources.list with apt-get after
install.  The system, apart from this gcc dependency problem, is
otherwise working perfectly.

  Thanks in advance for any aid you can render!

- Matt

ps.  The LIF image in dists/woody/disks-hppa/current/ fails in base
install, looking for a version of fileutils that doesn't exist.  I'll
gladly install woody straight from the debian mirror if someone can kindly
compile a newer LIF boot-floppies image.

pa-risc:~# apt-get install cpp-3.0
Reading Package Lists... Done
Building Dependency Tree... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.

Since you only requested a single operation it is extremely likely that
the package is simply not installable and a bug report against
that package should be filed.
The following information may help to resolve the situation:

Sorry, but the following packages have unmet dependencies:
  cpp-3.0: Depends: gcc-3.0-base (< 1:3.0.2) but 1:3.0.2-0pre010826 is to
be installed
E: Sorry, broken packages
pa-risc:~# dpkg -k gcc-3.0-base
dpkg: unknown option -k

Type dpkg --help for help about installing and deinstalling packages [*];
Use dselect for user-friendly package management;
Type dpkg -Dhelp for a list of dpkg debug flag values;
Type dpkg --force-help for a list of forcing options;
Type dpkg-deb --help for help about manipulating *.deb files;
Type dpkg --licence for copyright licence and lack of warranty (GNU GPL)
[*].

Options marked [*] produce a lot of output - pipe it through `less' or
`more' !
pa-risc:~# dpkg -l gcc-3.0-base
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err:
uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  gcc-3.0-base   3.0.2-0pre0108 The GNU Compiler Collection (base
package).
pa-risc:~# apt-get -f install
Reading Package Lists... Done
Building Dependency Tree... Done
0 packages upgraded, 0 newly installed, 0 to remove and 0  not upgraded.
pa-risc:~# apt-get install gcc
Reading Package Lists... Done
Building Dependency Tree... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.

Since you only requested a single operation it is extremely likely that
the package is simply not installable and a bug report against
that package should be filed.
The following information may help to resolve the situation:

Sorry, but the following packages have unmet dependencies:
  gcc: Depends: cpp (>= 2:3.0.1-8) but it is not going to be installed
       Depends: gcc-3.0 but it is not going to be installed
       Depends: cpp-3.0 but it is not going to be installed
E: Sorry, broken packages
pa-risc:~#

-- end --





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Xref: news.gmane.org gmane.linux.ports.parisc:11987

On Fri, Aug 17, 2001 at 03:53:40PM -0400, Carlos O'Donell Jr. wrote:
> > 
> > /usr/share/locale
> > /usr/share/locale/cs
> > /usr/share/locale/cs/LC_MESSAGES
> > /usr/share/locale/cs/LC_MESSAGES/dpkg.mo
> > 
> > I seem to remember someone saying this was a bug in an old version
> > of dpkg.  So one way around this may be to dpkg --remove texinfo, then
> > install dpkg, then install texinfo again.
> >
> 
> I tried removing texinfo. Sadly, what proceeds to occur is a 
> relative chain of packages that continually depend on 
> /usr/share/locale/cs, all the way down to 'tar.' At which point
> I had lost most of my system functionality and was scp'ing 
> binaries into /bin to keep it alive.
> 
> A fruitless effort, but interesting none the less. ;)
> 
> When I get home tonight I'll roll a new kernel and do more testing.
> 
> How does the installer get around this problem?
> Since it too must start with a base system?
> (Maybe it's just my misunderstanding of the complete inner workings
> of hte installer).

The installer starts with a bunch of .debs which are sufficiently new
that they don't have the apt-segv problem.  That is the case for the
0.9.2 ISO, anyway.

You might me able to do a fresh install from the 0.9.2 ISO to get a
more stable system.  If you don't want to do that, you could try using
dpkg -i to install .debs from that ISO.  Possibly a dpkg -i *.deb in
the binary-hppa/base dir might just work.  You should probably be running
a new(ish) kernel before you do that.

Richard





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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
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Subject: Re: Betr.: Re: [parisc-linux] Is a C200+ currently supported?
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To: Jurriaan Kalkman <Jurriaan.Kalkman@zrt.nl>
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Jurriaan,

Sorry,  The STI console is not supported on the C200+ under the
0.9.2 installer.  The reason is because I added the code to walk 
the GSC busses under the ccio driver after this iso was released.
I had limited success using a TOB kernel with a GSC based
graphics card.  Unfortunately, the PCI based graphics cards
will not work with the STI console yet.

The cable needs to be a null modem cable, not a straight
serial cable.  If the cable is really a null modem cable,
you might also try disconnecting the monitor as well.

I verified my minicom settings and they are 9600 8N1 as well.

- Ryan


On Mon, Aug 27, 2001 at 08:22:02AM +0200, Jurriaan Kalkman wrote:
> >Jurriaan,
> >
> >I use a C200+ as my development machine for the parisc-linux port. So
> >yes, I try to keep the C200+ supported.  Be forwarned that I am newbie
> >kernel hacker, and sometimes it takes me a long time to find/fix the 
> >problems on these machines (ie. the ccio cpio cdrom -> disk HPMC).  I
> >have only been using the serial console interface from the C200+ so I'm
> >not sure how well (or if the STI works on this machine).  Now that I 
> >found/fixed the HPMC I was looking for, I will see if I can give it a 
> >whirl with the 0.9.2 installer tonight.
> >
> I'm dying to know how that whirl worked out, as it doesn't whirl all
> that much here.
> 
> The 0.9.2 iso hangs after
> 
> Set PSW W bit to 0
> 
> I'm trying to update the firmware from 5.3 to 6.3, perhaps that will help.
> 
> And another (very newbie) question:
> 
> If I remove the keyboard and mouse from the C200, attach a serial cable
> that is working perfectly between my modem and my Intel computer, start
> minicom, make sure it runs as 9600 8N1 and then boot the C200, should
> something happen? Minicom keeps saying it's offline, so I can't get no
> serial console.
> 
> Thanks,
> Jurriaan
> 
> 

-- 




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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: Re: [parisc-linux] Building from scratch.
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--Sr1nOIr3CvdE5hEN
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> > I started by building the tools, as per the instructions on the website.
> > 
> > - Built binutils
> > - Partially build gcc
> > - Unpack and configure kernel
> > - Build glibc...
> 
> Where did you get glibc from?  The only place with current patches is the
> Debian package.  Our CVS is terribly out of date.
> 
> -- 
> Revolutions do not require corporate support.

M,

That explains things...

ftp://puffin.external.hp.com/pub/parisc/cvs <== Bad!

ftp://ftp.debian.org/debian/pool/main/g/glibc/ <== Good!?

Cheers,
Carlos.

p.s. Small diff to the toolchain index.html ?

--Sr1nOIr3CvdE5hEN
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="index.html.diff"

--- ./toolchain/index.html	Mon Aug 27 22:45:01 2001
+++ index.html	Mon Aug 27 23:47:33 2001
@@ -94,9 +94,23 @@
 <br>&nbsp;<br>
 The source trees of all of these are available through <A HREF="../tools/index.html">CVS</A> but we also make available nightly snapshots from <A HREF="ftp://puffin.external.hp.com/pub/parisc/cvs/">here</A>.  It is best to get a snapshot the first time you want to build a tree and update from CVS from then on. <BR>
 
-
 <OL>
 <strong><LI>Fetch GCC, Binutils, Glibc, Linux:</strong>
+<br>&nbsp;<BR>
+Note that the /pub/parisc/cvs snapshots may not be completely up
+to date for glibc. The most complete snapshots may be found at the debian
+pool <a href="ftp://ftp.debian.org/debian/pool/main">ftp://ftp.debian.org/debian/pool/main</a>. Although the example lists glibc 2.2.4, you will want to replace this with the latest available glibc version.
+<PRE>
+cd
+mkdir source
+mkdir build
+cd source
+wget ftp://ftp.debian.org/debian/pool/main/g/glibc/glibc_2.2.4.orig.tar.gz
+wget ftp://puffin.external.hp.com/pub/parisc/cvs/binutils-latest.tar.gz
+wget ftp://puffin.external.hp.com/pub/parisc/cvs/gcc-latest.tar.gz
+wget ftp://puffin.external.hp.com/pub/parisc/cvs/linux-latest.tar.gz
+</PRE>
+Or alternatively:
 <PRE>
 cd
 mkdir source
@@ -109,9 +123,15 @@
 get binutils-latest.tar.gz
 get gcc-latest.tar.gz
 get linux-latest.tar.gz
-get glibc-latest.tar.gz
+quit
+ftp ftp.debian.org
+user: anonymous
+password: you@your.email.address
+cd debian/pool/main/g/glibc
+get glibc_2.2.4.orig.tar.gz
 quit
 </PRE>
+
 
 <strong>Determine the host system setup:</strong>
 <br>&nbsp;<br>

--Sr1nOIr3CvdE5hEN--




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> 
> The installer starts with a bunch of .debs which are sufficiently new
> that they don't have the apt-segv problem.  That is the case for the
> 0.9.2 ISO, anyway.
> 
> You might me able to do a fresh install from the 0.9.2 ISO to get a
> more stable system.  If you don't want to do that, you could try using
> dpkg -i to install .debs from that ISO.  Possibly a dpkg -i *.deb in
> the binary-hppa/base dir might just work.  You should probably be running
> a new(ish) kernel before you do that.
> 
> Richard
>

Richard,

I think the main issue was that we were using a _really_ old kernel.
Which didn't have a lot of the later patches for the older 715 boxes.

I'm currently trying to roll the toolchain from start to end, and 
automate the process a little. BTW, is there any automation setup for
building the toolchain? Does each developer just have their own way(tm)
of doing the build?

The problem I have now lies in gathering up-to-date src for glibc,
and as Matthew pointed out, it is only available from the debian packages.

I'm currently trying this out.

Cheers,
Carlos.




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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: Re: [parisc-linux] Building from scratch.
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> 
> Where did you get glibc from?  The only place with current patches is the
> Debian package.  Our CVS is terribly out of date.
> 
> -- 
> Revolutions do not require corporate support.
> 
>

wget ftp://ftp.debian.org/debian/pool/main/g/glibc/glibc_2.2.4.orig.tar.gz

And applied glibc_2.2.4-1.diff from same directory.

---
make[2]: Leaving directory `/mnt/fatty/palinux/src/glibc/csu'
make[2]: Entering directory `/mnt/fatty/palinux/src/glibc/csu'
gcc ../sysdeps/unix/sysv/linux/hppa/sysdep.c -c -O2 -Wall -Winline -Wstrict-pro
totypes -Wwrite-strings -g      -I../include -I. -I/mnt/fatty/palinux/build/gli
bc/csu -I.. -I../libio  -I/mnt/fatty/palinux/build/glibc -I../sysdeps/hppa/elf 
-I../linuxthreads/sysdeps/unix/sysv/linux/hppa -I../linuxthreads/sysdeps/unix/s
ysv/linux -I../linuxthreads/sysdeps/pthread -I../sysdeps/pthread -I../linuxthre
ads/sysdeps/unix/sysv -I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/
hppa -I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux -I../sysdep
s/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I
../sysdeps/unix/sysv -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/hppa/hpp
a1.1 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/
dbl-64 -I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa -I
../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic   -D_LIBC_REEN
TRANT -include ../include/libc-symbols.h     -DHAVE_INITFINI -o /mnt/fatty/pali
nux/build/glibc/csu/sysdep.o
../sysdeps/unix/sysv/linux/hppa/sysdep.c: In function `syscall':
../sysdeps/unix/sysv/linux/hppa/sysdep.c:45: invalid register name `r28' for re
gister variable
../sysdeps/unix/sysv/linux/hppa/sysdep.c:46: invalid register name `r21' for re
gister variable
../sysdeps/unix/sysv/linux/hppa/sysdep.c:46: invalid register name `r22' for re
gister variable
../sysdeps/unix/sysv/linux/hppa/sysdep.c:46: invalid register name `r23' for re
gister variable
../sysdeps/unix/sysv/linux/hppa/sysdep.c:46: invalid register name `r24' for re
gister variable
../sysdeps/unix/sysv/linux/hppa/sysdep.c:46: invalid register name `r25' for re
gister variable
../sysdeps/unix/sysv/linux/hppa/sysdep.c:46: invalid register name `r26' for re
gister variable
../sysdeps/unix/sysv/linux/hppa/sysdep.c:47: Can't find a register in class `GE
NERAL_REGS' while reloading `asm'.
make[2]: *** [/mnt/fatty/palinux/build/glibc/csu/sysdep.o] Error 1
make[2]: Leaving directory `/mnt/fatty/palinux/src/glibc/csu'
make[1]: *** [csu/subdir_lib] Error 2
make[1]: Leaving directory `/mnt/fatty/palinux/src/glibc'
make: *** [all] Error 2
---

[carlos@systemhalted hppa]$ ls -alt sysdep.c 
-rw-rw-r--    1 carlos   carlos       1794 Jul 23 13:57 sysdep.c
[carlos@systemhalted hppa]$ 

Any thoughts or helpfull comments? :)
How do you developers do it?

Cheers,
Carlos.




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On Tue, Aug 28, 2001 at 12:39:52AM -0400, Carlos O'Donell Jr. wrote:
> wget ftp://ftp.debian.org/debian/pool/main/g/glibc/glibc_2.2.4.orig.tar.gz
> 
> And applied glibc_2.2.4-1.diff from same directory.

2.2.4-1 doesn't build.  I haven't investigated in any detail, but it gets
further than your build error indicates.  Use dpkg-buildpackage to build
it... and you need to uncomment the hppa-specific patch in 0list... and
you need to edit the patch anyway to get it to apply...

I have no enthusiasm for working on glibc.  Please, someone, take it
off my hands.

-- 
Revolutions do not require corporate support.




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From - Thu Nov 08 21:18:57 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C180 netbooting
Date: Tue, 28 Aug 2001 11:30:05 +0200
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Hi Mike,

I've just added your machine to the kernel hardware database, which should 
at least eliminate the following two "Unknown device" strings in the kernel log.

> Found devices:
> 1. Unknown device (4) at 0xf200c000, versions 0x3b, 0x0, 0x89, 0x0, 0x80
> 22. Unknown device (0) at 0xfffa0000, versions 0x59c, 0x0, 0x4, 0x0, 0x81


On Tuesday 28 August 2001 11:22, Helge Deller wrote:
> CVSROOT:	/home/cvs/parisc
> Module name:	linux
> Changes by:	deller	01/08/28 03:22:53
>
> Modified files:
> 	arch/parisc/kernel: hardware.c
>
> Log message:
> - add Raven U180 cpu and FW-SCSI entries to hardware-database
> acording to <nick@snowman.net>'s machine

Index: hardware.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/hardware.c,v
retrieving revision 1.22
diff -u -r1.22 hardware.c
--- hardware.c	2001/08/28 08:01:27	1.22
+++ hardware.c	2001/08/28 09:20:59
@@ -174,6 +174,7 @@
 	{HPHW_NPROC,0x59A,0x4,0x81,"Unlisted but reserved"},
 	{HPHW_NPROC,0x59B,0x4,0x81,"Raven U 160 (9000/780/C160)"},
 	{HPHW_NPROC,0x59D,0x4,0x81,"Raven U 200 (9000/780/C200)"},
+	{HPHW_NPROC,0x59C,0x4,0x81,"Raven U 180 (9000/780/C180)"},
 	{HPHW_NPROC,0x59E,0x4,0x91,"ThunderHawk T' 120"},
 	{HPHW_NPROC,0x59F,0x4,0x91,"Raven U 180+ (9000/780)"},
 	{HPHW_NPROC,0x5A0,0x4,0x81,"UL 1w T120 1MB/1MB (841/D260,D360)"},
@@ -340,6 +341,7 @@
 	{HPHW_A_DMA, 0x01F, 0x00089, 0x80, "SkyHawk 100/120 FW-SCSI"}, 
 	{HPHW_A_DMA, 0x027, 0x00089, 0x80, "Piranha 100 FW-SCSI"}, 
 	{HPHW_A_DMA, 0x032, 0x00089, 0x80, "Raven T' Core FW-SCSI"}, 
+	{HPHW_A_DMA, 0x03b, 0x00089, 0x80, "Raven U/L2 Core FW-SCSI"}, 
 	{HPHW_A_DMA, 0x03d, 0x00089, 0x80, "Merlin 160 Core FW-SCSI"},
 	{HPHW_A_DMA, 0x044, 0x00089, 0x80, "Mohawk Core FW-SCSI"}, 
 	{HPHW_A_DMA, 0x051, 0x00089, 0x80, "Firehawk FW-SCSI"}, 




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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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> > And applied glibc_2.2.4-1.diff from same directory.
> 
> 2.2.4-1 doesn't build.  I haven't investigated in any detail, but it gets
> further than your build error indicates.  Use dpkg-buildpackage to build
> it... and you need to uncomment the hppa-specific patch in 0list... and
> you need to edit the patch anyway to get it to apply...
> 
> I have no enthusiasm for working on glibc.  Please, someone, take it
> off my hands.
> 
> -- 
> Revolutions do not require corporate support.
>

I have also tried building 2.2.4 without the diff, but with no success.

What would be the responsibilities of said maintianer?

The small fact that "uncomment the hppa-specific patch in 0list" means
little to nothing to me ;) ... is probably an indication that I'm not
experienced enough to take on glibc.

Seeing as you are the current glibc maintainer, my question would be:
What type of process do you follow for maintaining glibc?

a) Kick machine until glibc works.
b) Throw machines out window until glibc works.
c) Wait. Glibc will fix itself.
d) Who nees glibc? PARISC ASM!
e) Stay up many hours extracting those pesky pieces that don't work with HPPA.

Thanks for all the invaluable help Matthew! :}

I promise to try and stop doing crazy things like building the toolchain
by hand ;)

Cheers,
Carlos





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: FW: [parisc-linux] Creating the installation CD
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On Fri, Aug 17, 2001 at 06:28:27PM -0700, Jaime Ash wrote:
> I finally succeeded in recording a CD using MSWindows and Easy CD Creator,
> but I am
> having a lot of problems trying to install version 0.9.2 on my HP 715 W/S.
> The problems
> I have encountered so far are:
> 
> 1. The first step in the installation menus (Configure the Keyboard) doesn't
> seem to work:
> after I followed its first 2 or 3 instructions (choosing US QWERTY keyboard)
> the keyboard arrows
> and the Return key stop functioning normally (or sometimes don't work at
> all).

Is this an HIL keyboard?  If so, as noted in the README, you should
not select a keymap.

> 2. If I skip the first step and go on to and complete Partition a Hard Disk
> (selecting my
> /dev/sdb drive, since my sda boots HPUX) I am able to complete successfully
> the following
> five steps:
> 	Initialize and Activate a Swap Partition
> 	Initialize a Linux Partition (I did this to /dev/sdb3 and /dev/sdb4)
> 	Install Operating System Kernel and Modules
> 	Configure Device Driver Modules (I did kernel/fs/fat, kernel/fs/msdos and
> kernel/fat/nfsd)
> 	Configure the Network
> 
> But, I am having trouble with the step "Install the Base System":  When I
> try to follow this step,
> choose CD-ROM drive and press Continue I get the message "The CD-ROM was not
> mounted successfully".
> If I press again Continue and attempt again to do "Install the Base System",
> I then get to a point
> where I am asked to choose a directory.  If I click OK (without choosing
> anything; i.e. with the
> choice field all blue) it asks me to "Select an Archive path" and shows a
> default of /insmnt. If I
> press Return, I get an "Important Note" telling me to install the 'testing'
> distribution (woody)
> rather than sid.  If I then hit continue, I am presented with 2 choices:
> 	testing: 'woody' - Debian Testing - Not Released
> and 	unstable: 'sid' - Debian Unstable - Not Released
> 
> If I choose 'woody', I get an Error message: Failed getting release file
> 	file: /instmnt/dists/woody/Release
> If I try the second ('sid') I am given a Warning that this is an unstable
> distribution, has Major
> bugs and the default is do not install.
> 
> I have then tried many times to repeat "Install the Base System", searching
> for the correct
> directory within the installation CD that has the Release version of the
> 0.9.2 PALINUX without
> success: no matter where I look within the CD I am always presented with the
> same 2 choices:
> 	testing: 'woody' - Debian Testing - Not Released
> and 	unstable: 'sid' - Debian Unstable - Not Released
> 
> I finally decided to ignore the Warning and I succeeded at installing the
> unstable 'sid' version,

Yes, the README tells you to install 'sid'.  I don't know why you got the
'cd not mounted successfully' message.

> except that at some point in the installation process I got the Warning:
> "Creating empty exim.conf
> so exim installs okay".  At a later point in the installation process I am

Yes, that dialog is expected, and harmless.

> given the default choice
> of Make the System Bootable, and if I choose that, I then get the choices:
> 	Next	   : Make a boot Floppy
> and	Alternate: Reboot the System
> 
> If I choose the first, I get a message that there is a Problem and asked to
> check if the floppy is
> write-protected (which it is not) or that I put it in the first (?) (Do you
> mean to check if the
> floppy is in the drive, before clicking the first choice "Make a boot
> Floppy"?)  That's what I did,
> but it didn't work.

As the README on the CD says, creating a boot floppy doesn't work atm.

> I then chose the second: "Reboot the System" and I was able to boot OK to
> the Debian System Configuration
> screen (except that I randomly get the following messages:
> 	ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
> 	skb: pf=2 (unowned) dev=lo len=328
> 	PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16

Known problem with dhcp-client.  To get round this, remove the links
under /etc/rc?.d/ which start dhcp-client.

> I was then able to successfully go through most of the Debian System
> Configuration screens until I got
> to the Apt Configuration, where I got the message "Cannot access security
> updates" on security.debian.org.

There are no secutiry updates for this s/w yet - it is unstable and
not an official debian release.

> After choosing Continue, I was able to complete the installation and I am
> able to log in as root.
> But, I still get the same random messages:
> 	ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
> 	skb: pf=2 (unowned) dev=lo len=328
> 	PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
> 
> One other thing I noticed is that, even though I had assigned the address
> 192.168.1.205 to my workstation
> (and I chose not to use DHCP), I found out that the machine'd address was
> instead 192.168.1.102, and I think
> that it is using DHCP.  (How can I verify this?)

dhpc-client should not be run from the startup scripts, but should only
be run when requested, via ifup/ifdown scripts.  As noted above, remove
the relevant /et/rc?.d entries.

> So my question is how do I install the Release version of the 0.9.2 PALINUX?

Sounds like you have already done that, most of your problems were
documented in the top level README on the CD.

Richard





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Subject: Re: [parisc-linux] PA-RISC linux newby needs help doing an install
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On Thu, Aug 23, 2001 at 05:15:34AM -0700, jacobsbd wrote:
> OK, I am sure I am overlooking some obvious things here, but it looks like I am stuck to the point of needing help so here goes.
> 
> I downloaded the iso and burned it with Nero on a win2k machine (the only burner I have easy access to)
> 
> my configurtion is hp 735/125 workstation,  209 meg ram,  
> on narrow SCSI chain I have  2 gig ST32550N (currently HP-UX), NEC 6x external CD-ROM drive. 4mm dds1 tape drive.
> on fast wide HVD 4gig ST15150W 
> 
> I can not seem to get the serial ports to work on this system even when I run HP_UX 11.00. I have tried unplugging the keyboard and the video card to no effect.

Internal FWD scsi on 735 is known not to work, but that shouldn't stop
you installing to the external narrow scsi.  Most likely the graphical
console is not supported yet, so your best bet is to persue trying to
get the serial ports working.

Richard





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From: "Kurc, Marcin A." <makurc@cooperstandard.com>
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Subject: RE: [parisc-linux] visualize C360/785 install
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I've problems booting it from cd.
Here is what I get

HARD Booted.
palo ipl 0.92 root@spqr Mon Jun 25 23:03:13 CEST 2001
.........

Kernel: partition 0 file /vmlinux
Ramdisk: partition 0 file /ramdisk
Warning: kernel name doesn't end with 32 or 64... Guessing 32
ELF32 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1606948 mediaptr 0x1000
Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
Loading ramdisk 1991209 bytes @ 3fe09000...
branching to kernel entry point 0x00100000
Set default PSW W bit to 0


and then it hangs. Do you know what could be wrong?

thanks

-----Original Message-----
From: Matthew Wilcox [mailto:willy@debian.org]
Sent: Monday, August 27, 2001 4:39 PM
To: Kurc, Marcin A.
Cc: 'parisc-linux@lists.parisc-linux.org'
Subject: Re: [parisc-linux] visualize C360/785 install


On Mon, Aug 27, 2001 at 04:24:08PM -0400, Kurc, Marcin A. wrote:
> Did anyone have any luck installing parisc-linux on HP visualize C360
(785)?

Ought to work.  Don't have one here, but Richard has one.

-- 
Revolutions do not require corporate support.




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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Betr.: RE: [parisc-linux] visualize C360/785 install
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>I've problems booting it from cd.
>Here is what I get
>
>HARD Booted.
>palo ipl 0.92 root@spqr Mon Jun 25 23:03:13 CEST 2001
>.........
>
>Kernel: partition 0 file /vmlinux
>Ramdisk: partition 0 file /ramdisk
>Warning: kernel name doesn't end with 32 or 64... Guessing 32
>ELF32 executable
>Entry 00100000 first 00100000 n 4
>Segment 0 load 00100000 size 1606948 mediaptr 0x1000
>Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
>Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
>Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
>Loading ramdisk 1991209 bytes @ 3fe09000...
>branching to kernel entry point 0x00100000
>Set default PSW W bit to 0
>
I have exactly the same problem with my C200, so you could look
op the thread 'Is a C200+ currently supported' where Brad tells
me to use the serial console, and why. I haven't yet gotten my
serial console to work, I have reason to believe I have a 1:1
serial cable, while I should have gotten an interlink cable.
The last message was send yesterday, so it isn't old yet.

Wether or not I need to set some options in the boot menu or
just have to unplug keyboard/mouse/monitor to get the serial
console is yet an open question.

Good luck,
Jurriaan





From - Thu Nov 08 21:18:58 2018
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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] visualize C360/785 install
Date: Tue, 28 Aug 2001 07:28:59 -0600
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Cc: 'Matthew Wilcox' <willy@debian.org>,
	"'parisc-linux@lists.parisc-linux.org'" <parisc-linux@lists.parisc-linux.org>
To: "Kurc, Marcin A." <makurc@cooperstandard.com>
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I see a very similar problem on the C200+ and it has to do
with the console code.  To see more information you can do
the following in arch/parisc/kernel/pdc_cons.c:

	1. #define EARLY_BOOTUP_DEBUG
	
 	2. Remove CON_BOOT from the flags in
	   struct console.

This should enable you to see additional messages.

Hope that helps!

- Ryan

On Tue, Aug 28, 2001 at 08:21:06AM -0400, Kurc, Marcin A. wrote:
> I've problems booting it from cd.
> Here is what I get
> 
> HARD Booted.
> palo ipl 0.92 root@spqr Mon Jun 25 23:03:13 CEST 2001
> .........
> 
> Kernel: partition 0 file /vmlinux
> Ramdisk: partition 0 file /ramdisk
> Warning: kernel name doesn't end with 32 or 64... Guessing 32
> ELF32 executable
> Entry 00100000 first 00100000 n 4
> Segment 0 load 00100000 size 1606948 mediaptr 0x1000
> Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
> Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
> Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
> Loading ramdisk 1991209 bytes @ 3fe09000...
> branching to kernel entry point 0x00100000
> Set default PSW W bit to 0
> 
> 
> and then it hangs. Do you know what could be wrong?
> 
> thanks
> 
> -----Original Message-----
> From: Matthew Wilcox [mailto:willy@debian.org]
> Sent: Monday, August 27, 2001 4:39 PM
> To: Kurc, Marcin A.
> Cc: 'parisc-linux@lists.parisc-linux.org'
> Subject: Re: [parisc-linux] visualize C360/785 install
> 
> 
> On Mon, Aug 27, 2001 at 04:24:08PM -0400, Kurc, Marcin A. wrote:
> > Did anyone have any luck installing parisc-linux on HP visualize C360
> (785)?
> 
> Ought to work.  Don't have one here, but Richard has one.
> 
> -- 
> Revolutions do not require corporate support.
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 

-- 




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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C180 netbooting
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Cc: Matthew Wilcox <willy@debian.org>, Helge Deller <deller@gmx.de>,
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To: nick@snowman.net
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I don't recall any reports that C180 works, so it might just not be
supported.  

I can tell from your log that the scsi chip is basically working, it
has executed a few script instructions, but in each case it has hung
on a SELECT instruction.  If there is no device on a given ID the
chip should interrupt and say so; in this case there is no interrupt,
so the higher level code times out and resets.  From the log it appears
that the chip hasn't tried to generate an interrupt, so it is not just
an interrupt routing problem.

Do you have terminators on your scsi bus?

What devices are present, on which scsi IDs?

If you let it run on beyond this point does it continue to generate
errors for scsi IDs up to ID 6?

I guess the C180 has more than one scsi bus, these errors relate to the
narrow scsi bus, probably used for the CDROM.  If your disks are on
another scsi bus, and you can install va the network, you could perhaps
get going that way.

Feel free to send me a complete log of the boot msgs.

Richard


On Thu, Aug 23, 2001 at 10:19:16PM -0400, nick@snowman.net wrote:
> SCSI subsystem driver Revision: 1.00
> sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 86, options 0
> scsi0: Revision 0x2
> Post test1, istat 01, sstat0 00, dstat 84
> sim700: WARNING IRQ probe failed, (returned 0)
> scsi0: Good, target data areas are dma coherent
> scsi0: test 1 completed ok.
> scsi0 : LASI/Simple 53c7xx
> scsi0: Unable to abort command for target 0
> scsi0: Unable to send Bus Device Reset for target 0
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: istat = 00, sstat0 = 00, sstat1 = 00, dstat = 00
> scsi0: dsp = 00088018 (script[0x0006]), dsps = 00088448, target = 0
> scsi0: Failing command for ID0
> scsi0: Unable to abort command for target 0
> scsi0: Unable to abort command for target 1
> scsi0: Unable to send Bus Device Reset for target 1
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: istat = 00, sstat0 = 00, sstat1 = 00, dstat = 00
> scsi0: dsp = 00088018 (script[0x0006]), dsps = 00088448, target = 0
> scsi0: Failing command for ID0
> scsi0: Unable to abort command for target 1
>   Vendor:           Model:                   Rev:     
>   Type:   Direct-Access                      ANSI SCSI revision: 00
> scsi0: Unable to abort command for target 2
> scsi0: Unable to send Bus Device Reset for target 2
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: istat = 00, sstat0 = 00, sstat1 = 00, dstat = 00
> scsi0: dsp = 00089018 (script[0x0406]), dsps = 00089448, target = 0
> scsi0: Failing command for ID1
> scsi0: Unable to abort command for target 2
> 
> 
> If you need more of the boot messages I can provide them.
> 	Nick
> 
> On Fri, 24 Aug 2001, Matthew Wilcox wrote:
> 
> > On Thu, Aug 23, 2001 at 03:33:36PM -0400, nick@snowman.net wrote:
> > > Ok, only one more question hopefully.  I updated my PDC firmware from v2.7
> > > to v6.1, that went fine.  I tried booting a 32bit lifimage, that worked
> > > untill it got to the SCSI, at which point it spat out lots of errors for
> > > id's 0, 1 and 2, then locked.  Is there something special I need to do to
> > > keep C180's scsi happy?  I am useing the debian iso's lifimages right now.
> > 
> > I don't recognise this problem, can you post the SCSI messages?
> > 
> > -- 
> > Revolutions do not require corporate support.
> > 
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> > 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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On Tue, Aug 28, 2001 at 12:22:51AM -0400, Carlos O'Donell Jr. wrote:
> I'm currently trying to roll the toolchain from start to end, and 
> automate the process a little. BTW, is there any automation setup for
> building the toolchain? Does each developer just have their own way(tm)
> of doing the build?

Mostly we use the prebuild cross-compilers from the parisc-linux
website, or we use the prebuilt native pkgs from a debian archive.

Richard





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To: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>,
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On Tue, Aug 28, 2001 at 07:17:43AM -0400, Carlos O'Donell Jr. wrote:
> I have also tried building 2.2.4 without the diff, but with no success.

No, you definitely need the diff, you just need a little more than that
too :-)

> What would be the responsibilities of said maintianer?

Keeping the diff in the glibc tree up to date, trying to merge it upstream,
fixing bugs as they arise.

> The small fact that "uncomment the hppa-specific patch in 0list" means
> little to nothing to me ;) ... is probably an indication that I'm not
> experienced enough to take on glibc.

Let's see:

apt-get source glibc
cd glibc-2.2.4-1
vi debian/patches/0list
	delete the `#' from the front of glibc22-hppa.

I've fixed some problems with this patch, but it still dies doing the
install.

> Seeing as you are the current glibc maintainer, my question would be:
> What type of process do you follow for maintaining glibc?

Really, I don't.  I have no enthusiasm for working on glibc, so I simply
wait for debian to do new glibc releases and ensure the patch still applies.
The various bits in the patch need to get merged upstream, but I don't
enjoy dealing with drepper, so I haven't been working on that either.

> I promise to try and stop doing crazy things like building the toolchain
> by hand ;)

If you were to take over maintaining glibc, I'd forgive you :-)

-- 
Revolutions do not require corporate support.




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> > 
> > I have no enthusiasm for working on glibc.  Please, someone, take it
> > off my hands.
> > 
> > -- 
> > Revolutions do not require corporate support.
> >

Wow, do I feel like a knuckle head :}

So after allowing myself to sip a good cup of straight black joe,
I think I found _the_ problem with my setup.

I use a makefile + perl to automate the download/setup/install of
the toolchain and associated files (atleast that's what I'm working 
on...)

I noticed the following error in my makefile:

 --prefix=$(DEST)/hppa-linux\
--with-headers=$(SRC)/linux/include \

Which is definately not a good thing! Since both get concatenated
into a single --prefix. My apologies Matthew, I did not want to waste
your time or mine on something so trivial. Sadly, when trying for the
eleventybazillionth time ... you might miss the _missing_ space in
the configure line.

Please forgive me... once I finish the setup, would you like me to send
the list a new ./toolchain/index.html for the site?

Some things I've noticed that I will add to index.html:

a) Must remember to set CC to hppa-linux-gcc (It hurts when you forget)
	= glibc's configure always seeks out gcc and there seems to
	= be no --with-cc=?? option
	= The wrong gcc also hurts because configure adds 
	= -isystem /your/local/gcc/include rather than the proper one.

b) Must remember to add $DEST/bin to path (needed for building gcc)
	= gcc is the first complainer since it needs hppa-linux-ar.

c) If not running debian, must run:

[glibc-2.2.4]sh ./debian/patches/glibc22-hppa.dpatctch -patch /your/hppa/glibc
(This patch touches some ia64 stuff?)

I wonder how many people build the toolchain from source?
I love this crosscompiler! Especially since our dual PIII box can still
compile the pants of any of our HPPA boxes (especially the 715/50's ;)

<Carlos looks back at the compile, still chugging, much father!>

OH MY GOD!
It compiled with 0 errors and 0 warnings...

I'm estatic!

I'm too frenetic to actually attempt to xc something and test out glibc :}


I'll bet you lied about the patch failing just to taunt me!
I bested you! ;)


Cheers,
Carlos.




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"Carlos O'Donell Jr." writes...

> I think the main issue was that we were using a _really_ old kernel.
> Which didn't have a lot of the later patches for the older 715 boxes.
> 
> I'm currently trying to roll the toolchain from start to end, and 
> automate the process a little. BTW, is there any automation setup for
> building the toolchain?

For an x86 -> hppa/hppa64 cross toolchain I use the palinux-autobuilder script 
in the build-tools section of pehc cvs.

For a native hppa toolchain use the debian packages(which several people 
worked very hard on in order to get working so we didn't have to deal with 
building by hand).

For hppa -> hppa64 cross compilers I still do it by hand.

Are you rolling your own toolchain for fun, or is the stuff on pehc not 
meeting your needs?

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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> 
> No, you definitely need the diff, you just need a little more than that
> too :-)
> 

I didn't need much more than that... I ignored the errors generated by
the patch (there were no errors on the critical hppa stuff, just some
touches into the ia64 section? Didn't look into it in much detail)

Boy did I fsck in my pants when I forgot that LD_LIBRARY_PATH had the
current directory ... and I cd'd into the glibc build directory :}

> 
> Keeping the diff in the glibc tree up to date, trying to merge it upstream,
> fixing bugs as they arise.
> 

I've never merged upstream, does it hurt? :}

> 
> Let's see:
> 
> apt-get source glibc
> cd glibc-2.2.4-1
> vi debian/patches/0list
> 	delete the `#' from the front of glibc22-hppa.
> 
> I've fixed some problems with this patch, but it still dies doing the
> install.
> 

Are you using dpkg-buildpackage to build it all?
Not having a debain based system makes it harder to test this...
(I might install all the deb tools and give it a try...)

'make install' worked on my box.

I theoretically have a working glibc 2.2.4-1 created using gcc-latest and
binutils-latest from the parisc ftp-site.

> 
> Really, I don't.  I have no enthusiasm for working on glibc, so I simply
> wait for debian to do new glibc releases and ensure the patch still applies.
> The various bits in the patch need to get merged upstream, but I don't
> enjoy dealing with drepper, so I haven't been working on that either.
> 
> If you were to take over maintaining glibc, I'd forgive you :-)
>

[carlos@systemhalted debian]$ man drepper
No manual entry for drepper
rlos@systemhalted debian]$ apropos ulrich
ulrich: nothing appropriate

Nothing appropriate indeed!
I can't see to find that tool, I'm sure it won't be hard to work with... ;)

I might take over maintaining glibc, but not quite yet...
If you let me get comfortable, possibly introducing me to the methodology
or just letting me shadow what you do... I might just take it from you ;)

Cheers,
Carlos. 




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Subject: Re: [parisc-linux] hang on C200 after 'Set default PSW W bit to 0' in 0.9.2
Date: Tue, 28 Aug 2001 16:36:15 +0100
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On Sat, Aug 25, 2001 at 01:52:06PM +0200, thunder7@xs4all.nl wrote:
> Set default PSW W bit to 0
> 
> and then nothing.
> 
> I know booting with a keyboard/mouse attached to the C200 would be
> risky, but I don't think it should go wrong so early in the booting
> process?

All subsequent output is generated by the kernel, so if the kernel
can't drive the sti console, you wont see anything else.  You need to
work on getting the serial ports going.  I use a cross-over cable
to connect my B180 to a PC.

Richard





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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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> 
> For an x86 -> hppa/hppa64 cross toolchain I use the palinux-autobuilder script 
> in the build-tools section of pehc cvs.
> 
> For a native hppa toolchain use the debian packages(which several people 
> worked very hard on in order to get working so we didn't have to deal with 
> building by hand).
> 

True, the native hppa toolchain is excellent. But in our case the systems we
are compiling for are much too slow.  Our cluster of 715's is great for 
proving and testing that your code works in parallel, but nothing short of
dead slow...

Thus we make extensive use of the toolchain on x86.
Ever try building MPICH on a 715/50? :}
Compared to make -j16 on our dual PIII...

> For hppa -> hppa64 cross compilers I still do it by hand.
> 
> Are you rolling your own toolchain for fun, or is the stuff on pehc not 
> meeting your needs?
>

The palinux-autobuilder, atleast the last one I saw, could not compile
the latest set of sources.  I haven't tried in a while.  This is really
the whole reason this thread got started... that palinux-autobuilder 
wasn't working properly for me :} And now Matthew almost has me signed on
as the maintainer for glibc on hppa!

Also, the notes on http://www.parisc-linux.org/toolchain/index.html should
be changed to reflect the fact that it's not possible to build a system
using said instructions ;)

It should probably be changed to include the steps required to:

a) Roll it by hand (what I was attempting)
b) Use the palinux-autobuilder

It goes without saying that I really _want_ the autobuilder to work.
Maybe I should grab it out of CVS... I had the ftp version.

I noted in my other email, that there are a few finiky things that
the autobuilder must do in order to work (set certain environment variables,
patch glibc, etc...).

Cheers,
Carlos. 




From - Thu Nov 08 21:18:58 2018
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Subject: Re: [parisc-linux] visualize C360/785 install
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On Mon, Aug 27, 2001 at 10:38:33PM +0100, Matthew Wilcox wrote:
> On Mon, Aug 27, 2001 at 04:24:08PM -0400, Kurc, Marcin A. wrote:
> > Did anyone have any luck installing parisc-linux on HP visualize C360 (785)?
> 
> Ought to work.  Don't have one here, but Richard has one.

Yes I do - it works for me, although I've only used serial console.
Are you using serial or graphical console?

Richard





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From: "Kurc, Marcin A." <makurc@cooperstandard.com>
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Subject: RE: [parisc-linux] visualize C360/785 install
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I'm using graphical console, have to dig up a serial one somewhere :)

thanks

-----Original Message-----
From: Richard Hirst [mailto:rhirst@linuxcare.com]
Sent: Tuesday, August 28, 2001 11:36 AM
To: Kurc, Marcin A.
Cc: 'parisc-linux@lists.parisc-linux.org'
Subject: Re: [parisc-linux] visualize C360/785 install


On Mon, Aug 27, 2001 at 10:38:33PM +0100, Matthew Wilcox wrote:
> On Mon, Aug 27, 2001 at 04:24:08PM -0400, Kurc, Marcin A. wrote:
> > Did anyone have any luck installing parisc-linux on HP visualize C360
(785)?
> 
> Ought to work.  Don't have one here, but Richard has one.

Yes I do - it works for me, although I've only used serial console.
Are you using serial or graphical console?

Richard





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On Tue, Aug 28, 2001 at 01:00:13PM -0400, Kurc, Marcin A. wrote:
> I'm using graphical console, have to dig up a serial one somewhere :)

Most people just run minicom on another linux box and link
the two with a crossover cable.

Richard





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I guess that's what I have to do, I found a serial console, but the menus
are all screwed up so it won't work. 
Now the only problem is to find an i386 box to put linux on :)

Anyway, thank you everybody for helping me.

-----Original Message-----
From: 'Richard Hirst' [mailto:rhirst@linuxcare.com]
Sent: Tuesday, August 28, 2001 12:14 PM
To: Kurc, Marcin A.
Cc: 'parisc-linux@lists.parisc-linux.org'
Subject: Re: [parisc-linux] visualize C360/785 install


On Tue, Aug 28, 2001 at 01:00:13PM -0400, Kurc, Marcin A. wrote:
> I'm using graphical console, have to dig up a serial one somewhere :)

Most people just run minicom on another linux box and link
the two with a crossover cable.

Richard





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To: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>,
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On Tue, Aug 28, 2001 at 11:29:00AM -0400, Carlos O'Donell Jr. wrote:
> I've never merged upstream, does it hurt? :}

Sometimes... see the archives.

> Are you using dpkg-buildpackage to build it all?

Yes, it takes a tree and builds new .deb files out of it for you.

> Not having a debain based system makes it harder to test this...
> (I might install all the deb tools and give it a try...)

Could help you out later, yep.

> 'make install' worked on my box.
> 
> I theoretically have a working glibc 2.2.4-1 created using gcc-latest and
> binutils-latest from the parisc ftp-site.

Mmm.  I would expect it to not work.  My build dies when it uses part of itself
in the install:

/home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/elf/ld.so.1 --library-path 
/home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj:/home/willy/glibc/2.2.4-1/g
libc-2.2.4/hppa-linux/obj/math:/home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/
obj/elf:/home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/dlfcn:/home/willy/g
libc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/nss:/home/willy/glibc/2.2.4-1/glibc-2.2.
4/hppa-linux/obj/nis:/home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/rt:/ho
me/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/resolv:/home/willy/glibc/2.2.4
-1/glibc-2.2.4/hppa-linux/obj/crypt:/home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-l
inux/obj/linuxthreads /home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/timez
one/zic -d /home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/install_root/usr/sha
re/zoneinfo -L /dev/null -y ./yearistype africa
make[3]: *** [/home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/install_root/usr/
share/zoneinfo/Africa/Algiers] Segmentation fault

running this under gdb gives:

Program received signal SIGSEGV, Segmentation fault.
_dl_debug_vdprintf (fd=0, tag_p=0, 
    fmt=0x173dc <Address 0x173dc out of bounds>, arg=0xbff008d8)
    at dl-misc.c:101
101       while (*fmt != '\0')
(gdb) bt
#0  _dl_debug_vdprintf (fd=0, tag_p=0, 
    fmt=0x173dc <Address 0x173dc out of bounds>, arg=0xbff008d8)
    at dl-misc.c:101
#1  0x4100e468 in _dl_dprintf (fd=2, 
    fmt=0x173dc <Address 0x173dc out of bounds>) at dl-misc.c:273
#2  0x41012454 in __assert_fail (
    assertion=0x15314 <Address 0x15314 out of bounds>, file=0x0, line=62, 
    function=0xbff008d8 "") at dl-minimal.c:190
#3  0x41002e88 in elf_get_dynamic_info___3 (l=0x2) at rtld.c:62
#4  0x41002f90 in _dl_start (arg=0xbff004f4) at rtld.c:172
#5  0x41002ac8 in _dl_start_user () at rtld.c:135
(gdb) 

It looks to me like the problem occurred in frame #3 where
elf_get_dynamic_info was passed `2' as a value.  Bizarrely, this is the
address of a stack variable (take a look in rtld.c), so I am stumped and
I've been working on more interesting stuff instead.  I tried several
times to attract BenC's attention on this and didn't get anywhere.

-- 
Revolutions do not require corporate support.




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> 
> Mmm.  I would expect it to not work.  My build dies when it uses part of itself
> in the install:
> 
> /home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/elf/ld.so.1 --library-path 
> /home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj:/home/willy/glibc/2.2.4-1/g
> libc-2.2.4/hppa-linux/obj/math:/home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/
> obj/elf:/home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/dlfcn:/home/willy/g
> libc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/nss:/home/willy/glibc/2.2.4-1/glibc-2.2.
> 4/hppa-linux/obj/nis:/home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/rt:/ho
> me/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/resolv:/home/willy/glibc/2.2.4
> -1/glibc-2.2.4/hppa-linux/obj/crypt:/home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-l
> inux/obj/linuxthreads /home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/timez
> one/zic -d /home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/install_root/usr/sha
> re/zoneinfo -L /dev/null -y ./yearistype africa
> make[3]: *** [/home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/install_root/usr/
> share/zoneinfo/Africa/Algiers] Segmentation fault
> 
> running this under gdb gives:
> 
> Program received signal SIGSEGV, Segmentation fault.
> _dl_debug_vdprintf (fd=0, tag_p=0, 
>     fmt=0x173dc <Address 0x173dc out of bounds>, arg=0xbff008d8)
>     at dl-misc.c:101
> 101       while (*fmt != '\0')
> (gdb) bt
> #0  _dl_debug_vdprintf (fd=0, tag_p=0, 
>     fmt=0x173dc <Address 0x173dc out of bounds>, arg=0xbff008d8)
>     at dl-misc.c:101
> #1  0x4100e468 in _dl_dprintf (fd=2, 
>     fmt=0x173dc <Address 0x173dc out of bounds>) at dl-misc.c:273
> #2  0x41012454 in __assert_fail (
>     assertion=0x15314 <Address 0x15314 out of bounds>, file=0x0, line=62, 
>     function=0xbff008d8 "") at dl-minimal.c:190
> #3  0x41002e88 in elf_get_dynamic_info___3 (l=0x2) at rtld.c:62
> #4  0x41002f90 in _dl_start (arg=0xbff004f4) at rtld.c:172
> #5  0x41002ac8 in _dl_start_user () at rtld.c:135
> (gdb) 
> 
> It looks to me like the problem occurred in frame #3 where
> elf_get_dynamic_info was passed `2' as a value.  Bizarrely, this is the
> address of a stack variable (take a look in rtld.c), so I am stumped and
> I've been working on more interesting stuff instead.  I tried several
> times to attract BenC's attention on this and didn't get anywhere.
> 
> -- 
> Revolutions do not require corporate support.

That's odd, I built it fine. And went back and rebuilt the rest of GCC 
while I was at it (had to symlink ./src/linux/include/linux and 
./src/linux/include/asm so that they would sit in 
-isystem $DEST/hppa-linux/include used by the last bits of xgcc)

What is running at the moment? One of the binutils or gcc?
It should most definately not segfault in any of the _dl_xxxxx routines ;)

I grabbed the glibc2.2.4 from the debian pool (orig.tar.gz), then applied
the 2.2.4-1 patch, followed by running the glibc22-hppa.dpatch (since I
don't have any deb tools).

The last two patches should probably have been run in the reverse order,
could this be the crux?

I'm still very confused about the ia64 stuff that wants to get touched
by the glibc22-hppa.dpatch?

Although I've built it all without failing... I have yet to test the
new system.


I will:

- Test the compiler by building a new kernel.
- Test glibc on a 712/60.
- Try to reverse the patching order and see if it compiles.

Cheers,
Carlos.








From - Thu Nov 08 21:18:59 2018
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On Tue, Aug 28, 2001 at 03:22:21PM -0400, Carlos O'Donell Jr. wrote:
> That's odd, I built it fine.

Yes, but you were crosscompiling.  `make install' is very different
with a crossbuild.

> What is running at the moment? One of the binutils or gcc?
> It should most definately not segfault in any of the _dl_xxxxx routines ;)

THe program which is being run is
/home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/timezone/zic; glibc
is making sure it's run with the new ld.so and all the new versions of
the libs.

Have you actually tried installing glibc 2.2.4-1 on a live system and
running programs with it?

> I grabbed the glibc2.2.4 from the debian pool (orig.tar.gz), then applied
> the 2.2.4-1 patch, followed by running the glibc22-hppa.dpatch (since I
> don't have any deb tools).
> 
> The last two patches should probably have been run in the reverse order,
> could this be the crux?

It's more likely that one of the other debian patches conflicts with
what we're doing.  The debian/rules file will apply the patches in the
debian/patches directory in the order given by debian/patches/0list.
I seem to remember a couple of other diffs that need to get applied...

> I'm still very confused about the ia64 stuff that wants to get touched
> by the glibc22-hppa.dpatch?

That's changing all the testandset to trylock.

-- 
Revolutions do not require corporate support.




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> 
> Yes, but you were crosscompiling.  `make install' is very different
> with a crossbuild.
> 

What are the major differences? Crosscompiling vs. Crossbuild?
Better yet, where can I learn about those difference?

> 
> THe program which is being run is
> /home/willy/glibc/2.2.4-1/glibc-2.2.4/hppa-linux/obj/timezone/zic; glibc
> is making sure it's run with the new ld.so and all the new versions of
> the libs.
> 

So the native build of zic barfs. I'm not even sure if zic runs when
you compile glibc by hand? Hrm... zic.c is 52,000 loc.. eww.


> Have you actually tried installing glibc 2.2.4-1 on a live system and
> running programs with it?
> 
> It's more likely that one of the other debian patches conflicts with
> what we're doing.  The debian/rules file will apply the patches in the
> debian/patches directory in the order given by debian/patches/0list.
> I seem to remember a couple of other diffs that need to get applied...

Question:
In theory since those patches are changes that haven't been merged upstream,
should the only requirements be:

- Have 2.2.4 Original
- Carry out any one of the dpatch's since they are dif'd against 2.2.4 Original
- Then carry out the 2.2.4-1 patch

For x86 Cross Compiler, the only requirement would be:
- Apply the dpatch's that are critical to the running hppa port

Quesiton:
If the pool has the hppa changes commented out in the 0list file, does
that mean that glibc2.2.4 is not available for hppa yet? (Since it fails to 
compile? The first error probably being the Elf32_Addr* problem with
that '& 3' fixed by a cast to (unsigned int)).

> 
> That's changing all the testandset to trylock.
>

Why would that be in the hppa dpatch?

Cheers,
Carlos. 




From - Thu Nov 08 21:18:59 2018
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On Tue, Aug 28, 2001 at 04:36:39PM -0400, Carlos O'Donell Jr. wrote:
> What are the major differences? Crosscompiling vs. Crossbuild?
> Better yet, where can I learn about those difference?

I don't think the differences between cross and native builds are
documented anywhere.

> So the native build of zic barfs. I'm not even sure if zic runs when
> you compile glibc by hand? Hrm... zic.c is 52,000 loc.. eww.

I would say it dies in the dynamic linker before zic is entered.

> Question:
> In theory since those patches are changes that haven't been merged upstream,
> should the only requirements be:
> 
> - Have 2.2.4 Original
> - Carry out any one of the dpatch's since they are dif'd against 2.2.4 Original
> - Then carry out the 2.2.4-1 patch

No.  The 2.2.4-1 patch adds the debian-specific patches to the tarball.
There's nowhere to get the hppa patch from if you don't apply the
2.2.4-1 patch.

> Quesiton:
> If the pool has the hppa changes commented out in the 0list file, does
> that mean that glibc2.2.4 is not available for hppa yet? (Since it fails to 
> compile? The first error probably being the Elf32_Addr* problem with
> that '& 3' fixed by a cast to (unsigned int)).

glibc 2.2.4 is indeed not yet available for hppa.  As it says in the
release announcement.

> > 
> > That's changing all the testandset to trylock.
> >
> 
> Why would that be in the hppa dpatch?

Because we can't implement testandset atomically & efficiently on hppa.
The places which use testandset actually just need trylock.

-- 
Revolutions do not require corporate support.




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ok, what I've finally been able to do is boot to an nfsroot, partition sda
and sdb, then when I try to mke2fs any partition on either drive I get
errors along the lines of
init-2.04# SCSI device sdb: 4194685 512-byte hdwr sectors (2148 MB)
 sdb: sdb1 sdb2
SCSI device sdb: 4194685 512-byte hdwr sectors (2148 MB)
 sdb: sdb1 sdb2
Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping
resources.

Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping
resources.

In interrupt handler - not syncing
Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping
resources.

In interrupt handler - not syncing
Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping
resources.

In interrupt handler - not syncing
SysRq: Boot Sync Unmount showPc showTasks showMem loglevel0-8 tErm kIll
killalL
SysRq: Resetting

Is that usefull at all, and if not what would be usefull?
	Thanks
		Nick


On Tue, 28 Aug 2001, Richard Hirst wrote:

> I don't recall any reports that C180 works, so it might just not be
> supported.  
> 
> I can tell from your log that the scsi chip is basically working, it
> has executed a few script instructions, but in each case it has hung
> on a SELECT instruction.  If there is no device on a given ID the
> chip should interrupt and say so; in this case there is no interrupt,
> so the higher level code times out and resets.  From the log it appears
> that the chip hasn't tried to generate an interrupt, so it is not just
> an interrupt routing problem.
> 
> Do you have terminators on your scsi bus?
> 
> What devices are present, on which scsi IDs?
> 
> If you let it run on beyond this point does it continue to generate
> errors for scsi IDs up to ID 6?
> 
> I guess the C180 has more than one scsi bus, these errors relate to the
> narrow scsi bus, probably used for the CDROM.  If your disks are on
> another scsi bus, and you can install va the network, you could perhaps
> get going that way.
> 
> Feel free to send me a complete log of the boot msgs.
> 
> Richard
> 
> 
> On Thu, Aug 23, 2001 at 10:19:16PM -0400, nick@snowman.net wrote:
> > SCSI subsystem driver Revision: 1.00
> > sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 86, options 0
> > scsi0: Revision 0x2
> > Post test1, istat 01, sstat0 00, dstat 84
> > sim700: WARNING IRQ probe failed, (returned 0)
> > scsi0: Good, target data areas are dma coherent
> > scsi0: test 1 completed ok.
> > scsi0 : LASI/Simple 53c7xx
> > scsi0: Unable to abort command for target 0
> > scsi0: Unable to send Bus Device Reset for target 0
> > scsi0: Unable to do SCSI bus reset
> > scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> > scsi0: istat = 00, sstat0 = 00, sstat1 = 00, dstat = 00
> > scsi0: dsp = 00088018 (script[0x0006]), dsps = 00088448, target = 0
> > scsi0: Failing command for ID0
> > scsi0: Unable to abort command for target 0
> > scsi0: Unable to abort command for target 1
> > scsi0: Unable to send Bus Device Reset for target 1
> > scsi0: Unable to do SCSI bus reset
> > scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> > scsi0: istat = 00, sstat0 = 00, sstat1 = 00, dstat = 00
> > scsi0: dsp = 00088018 (script[0x0006]), dsps = 00088448, target = 0
> > scsi0: Failing command for ID0
> > scsi0: Unable to abort command for target 1
> >   Vendor:           Model:                   Rev:     
> >   Type:   Direct-Access                      ANSI SCSI revision: 00
> > scsi0: Unable to abort command for target 2
> > scsi0: Unable to send Bus Device Reset for target 2
> > scsi0: Unable to do SCSI bus reset
> > scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> > scsi0: istat = 00, sstat0 = 00, sstat1 = 00, dstat = 00
> > scsi0: dsp = 00089018 (script[0x0406]), dsps = 00089448, target = 0
> > scsi0: Failing command for ID1
> > scsi0: Unable to abort command for target 2
> > 
> > 
> > If you need more of the boot messages I can provide them.
> > 	Nick
> > 
> > On Fri, 24 Aug 2001, Matthew Wilcox wrote:
> > 
> > > On Thu, Aug 23, 2001 at 03:33:36PM -0400, nick@snowman.net wrote:
> > > > Ok, only one more question hopefully.  I updated my PDC firmware from v2.7
> > > > to v6.1, that went fine.  I tried booting a 32bit lifimage, that worked
> > > > untill it got to the SCSI, at which point it spat out lots of errors for
> > > > id's 0, 1 and 2, then locked.  Is there something special I need to do to
> > > > keep C180's scsi happy?  I am useing the debian iso's lifimages right now.
> > > 
> > > I don't recognise this problem, can you post the SCSI messages?
> > > 
> > > -- 
> > > Revolutions do not require corporate support.
> > > 
> > > 
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> > > 
> > 
> > 
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> > 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 





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From: rbrad@beavis.ybsoft.com (Ryan Bradetich)
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Subject: Re: [parisc-linux] C180 netbooting
Date: Tue, 28 Aug 2001 21:06:55 -0600
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Arg.... I recongnize this message :(

Nick,

Can you tell me which kernel you are using, and how much
RAM you have in the C180?  This message means that the ccio
driver can not find any available resources in the IO page
directory to allocate for the DMA trasaction.

Thanks,

- Ryan

On Tue, Aug 28, 2001 at 06:12:45PM -0400, nick@snowman.net wrote:
> ok, what I've finally been able to do is boot to an nfsroot, partition sda
> and sdb, then when I try to mke2fs any partition on either drive I get
> errors along the lines of
> init-2.04# SCSI device sdb: 4194685 512-byte hdwr sectors (2148 MB)
>  sdb: sdb1 sdb2
> SCSI device sdb: 4194685 512-byte hdwr sectors (2148 MB)
>  sdb: sdb1 sdb2
> Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping
> resources.
> 
> Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping
> resources.
> 
> In interrupt handler - not syncing
> Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping
> resources.
> 
> In interrupt handler - not syncing
> Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping
> resources.
> 
> In interrupt handler - not syncing
> SysRq: Boot Sync Unmount showPc showTasks showMem loglevel0-8 tErm kIll
> killalL
> SysRq: Resetting
> 
> Is that usefull at all, and if not what would be usefull?
> 	Thanks
> 		Nick




From - Thu Nov 08 21:18:59 2018
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I have 128meg of ram and am useing the current CVS source compiled
today.  Should I try another kernel?  I have to boot custom kernels as one
of the SCSI drivers hangs the system.
	Nick

On Tue, 28 Aug 2001, Ryan Bradetich wrote:

> Arg.... I recongnize this message :(
> 
> Nick,
> 
> Can you tell me which kernel you are using, and how much
> RAM you have in the C180?  This message means that the ccio
> driver can not find any available resources in the IO page
> directory to allocate for the DMA trasaction.
> 
> Thanks,
> 
> - Ryan
> 
> On Tue, Aug 28, 2001 at 06:12:45PM -0400, nick@snowman.net wrote:
> > ok, what I've finally been able to do is boot to an nfsroot, partition sda
> > and sdb, then when I try to mke2fs any partition on either drive I get
> > errors along the lines of
> > init-2.04# SCSI device sdb: 4194685 512-byte hdwr sectors (2148 MB)
> >  sdb: sdb1 sdb2
> > SCSI device sdb: 4194685 512-byte hdwr sectors (2148 MB)
> >  sdb: sdb1 sdb2
> > Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping
> > resources.
> > 
> > Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping
> > resources.
> > 
> > In interrupt handler - not syncing
> > Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping
> > resources.
> > 
> > In interrupt handler - not syncing
> > Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping
> > resources.
> > 
> > In interrupt handler - not syncing
> > SysRq: Boot Sync Unmount showPc showTasks showMem loglevel0-8 tErm kIll
> > killalL
> > SysRq: Resetting
> > 
> > Is that usefull at all, and if not what would be usefull?
> > 	Thanks
> > 		Nick
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 





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Subject: [parisc-linux] Keyboard on a 715/100
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Xref: news.gmane.org gmane.linux.ports.parisc:12021

So, is there some reason I was thinking that updating the kernel to 2.4.9
would fix the 'non-responding' keyboard issue?

Weird part is, mine has worked intermittently from 0.6 up until now, when
I updated to 2.4.9, when it's completely quit working. No errors on boot,
just no response. Mouse is fine, though...

Anyone care to point me to a replacement "keyboard.c" or whatever it is
this poor thing needs? :-)





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It works! Thank you all so very much!!

Jurriaan

palo ipl 0.92 bame@c3k Wed Jun 20 11:49:11 MDT 2001
0/vmlinux32 2853588 bytes @ 0x44000
Partition Start(MB) End(MB) Id Type
1               1      31   f0 Palo
2              32    3846   83 ext2
3            3847    7661   83 ext2
4            7662    8678   82 swap

Command line: 'root=/dev/sda2 HOME=/ console=ttyS0 TERM=vt102'

Kernel: partition 2 file /boot/vmlinux-2.4.0
ext2 block size 4096
ext2_mount(partition 2) returns 0
ext2_open(/boot/vmlinux-2.4.0) = 3
ELF32 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1606948 mediaptr 0x1000
Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
branching to kernel entry point 0x00100000
Set default PSW W bit to 0
Linux version 2.4.0-32 (root@slab) (gcc version 3.0 (Debian)) #1 Thu Jun 28 11:49:00 BST 2001
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: Newer Box
model	000059d0 00000481 00000000 00000002 78017d2b 100000f0 00000008 000000b2 000000b2
vers	00000501
cpuid	000001d7
CPUID	vers 14 rev 23
model	9000/782/C200+
Total Memory: 512 Mb
On node 0 totalpages: 131072
zone(0): 131072 pages.
zone(1): 0 pages.
zone(2): 0 pages.
PDC reported no LCD or LED.
Searching for devices...
Found devices:
1. Raven U/L2 Dino RS-232 (10) at 0xf2003000, versions 0x6, 0x0, 0x8c, 0x0, 0x0
2. Raven+ w SE FWSCSI Core BA (11) at 0xffd00000, versions 0x56, 0x0, 0x81, 0x0, 0x0,  additional addresses: 0xffd0c000 0xffc00000 
3. Raven+ w SE FWSCSI Core RS-232 (10) at 0xffd05000, versions 0x56, 0x0, 0x8c, 0x0, 0x0
4. Raven+ w SE FWSCSI Core SCSI (10) at 0xffd06000, versions 0x56, 0x0, 0x82, 0x0, 0x0
5. Raven+ w SE FWSCSI Core Centronics (10) at 0xffd02000, versions 0x56, 0x0, 0x74, 0x0, 0x0,  additional addresses: 0xffd01000 0xffd03000 
6. Raven+ w SE FWSCSU Core Audio (10) at 0xffd04000, versions 0x56, 0x4, 0x7b, 0x0, 0x0
7. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08000, versions 0x56, 0x0, 0x84, 0x0, 0x0
8. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08100, versions 0x56, 0x0, 0x84, 0x0, 0x0
9. U2-IOA BC GSC+ Port (7) at 0xf203f000, versions 0x501, 0x1, 0xc, 0x3, 0x0
10. U2-IOA BC GSC+ Port (7) at 0xf103f000, versions 0x501, 0x1, 0xc, 0x3, 0x0
11. Cujo PCI Bridge (13) at 0xf1000000, versions 0x682, 0x1, 0xa, 0x1, 0x0,  additional addresses: 0xf1800000 0xf6000000 
12. Dino PCI Bridge (13) at 0xf2000000, versions 0x680, 0x3, 0xa, 0x0, 0x0,  additional addresses: 0xf2800000 
13. U2-IOA BC Runway Port (12) at 0xfff88000, versions 0x580, 0xf, 0xb, 0x1, 0x50
14. U2-IOA BC Runway Port (12) at 0xfff8a000, versions 0x580, 0xf, 0xb, 0x1, 0x50
15. Raven U 200 (9000/780/C200) (0) at 0xfffa0000, versions 0x59d, 0x0, 0x4, 0x0, 0x81
16. Raven U 200 (1) at 0xfffb1000, versions 0x5d, 0x0, 0x9, 0x0, 0x0
That's a total of 16 devices.
CPU(s): 1 x PA8200 (PCX-U+) at 200.000000 MHz
Kernel command line: root=/dev/sda2 HOME=/ console=ttyS0 TERM=vt102
Console: colour dummy device 160x64
Calibrating delay loop... 398.95 BogoMIPS
Memory: 513012k available
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
POSIX conformance testing by UNIFIX
Dino version 3.1 (bridge mode) found at 0xf2000000
Lasi version 0 at 0xffd00000 found.
LED display at ffd0c000 registered
PS/2 keyboard controller at 0xffd08000 (irq 133) found, no device attached.
PS/2 psaux controller at 0xffd08100 (irq 133) found, no device attached.

sticonsole_init: searching for STI ROMs
ccio found U2 I/O MMU at 0xfff88000
io_io_high: 0xf6000000 io_io_low: 0xf2000000
ccio found U2 I/O MMU at 0xfff8a000
ccio: Cujo 2.0 bug needs a work around
io_io_high: 0xf2000000 io_io_low: 0xf1000000
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
request_module[parport_lowlevel]: Root fs not mounted
lp: driver loaded but no devices found
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: enabling 8 loop devices
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xffd05800 (irq = 154) is a 16550A
ttyS01 at iomem 0xf2003800 (irq = 74) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
Linux Tulip driver version 0.9.13 (January 2, 2001)
eth0: Digital DS21143 Tulip rev 48 at 0xff00, 00:60:B0:B2:9E:BC, IRQ 64.
eth0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 152 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 19, function 0
sym53c8xx: 53c875 detected 
sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 67
sym53c875-0: NCR clock is 40401KHz
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-0: on-chip RAM at 0xf2ffe000
sym53c875-0: restart (scsi reset).
sym53c875-0: Downloading SCSI SCRIPTS.
scsi0 : sym53c8xx - version 1.6b
  Vendor: IBM       Model: DDRS-39130WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym53c875-0-<6,0>: tagged command queue depth set to 8
sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 150, options 0
scsi1: Revision 0x2
scsi1: test 1 completed ok.
scsi1 : LASI/Simple 53c7xx
  Vendor: TOSHIBA   Model: CD-ROM XM-6201TA  Rev: 1037
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 6, lun 0
sym53c875-0-<6,0>: wide msgout: 1-2-3-1.
sym53c875-0-<6,0>: wide msgin: 1-2-3-1.
sym53c875-0-<6,0>: wide: wide=1 chg=0.
sym53c875-0-<6,0>: wide msgout: 1-2-3-1.
sym53c875-0-<6,0>: wide msgin: 1-2-3-1.
sym53c875-0-<6,0>: wide: wide=1 chg=0.
sym53c875-0-<6,0>: sync msgout: 1-3-1-c-10.
sym53c875-0-<6,0>: sync msg in: 1-3-1-c-f.
sym53c875-0-<6,0>: sync: per=12 scntl3=0x90 scntl4=0x0 ofs=15 fak=0 chg=0.
sym53c875-0-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 15)
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
Detected scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0
Uniform CD-ROM driver Revision: 3.12
Lasi Harmony Audio rev. 0 at 0xffd04000, using IRQ 146
md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md.c: sizeof(mdp_super_t) = 4096
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
IP-Config: Incomplete network configuration information.
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
INIT: version 2.78 booting
Activating swap...
Adding Swap: 1041400k swap-space (priority -1)
Checking root file system...
Parallelizing fsck version 1.20 (25-May-2001)
/dev/sda2: clean, 7165/488640 files, 38002/976640 blocks
Calculating module dependencies... done.
Loading modules: 
Checking all file systems...
Parallelizing fsck version 1.20 (25-May-2001)
Setting kernel variables.
Mounting local filesystems...
nothing was mounted
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: done.

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Tue Mar 26 01:04:14 CET 2024

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting internet superserver: inetd.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.

Debian GNU/Linux testing/unstable pa8200 ttyS0

pa8200 login: root
Password: 
Last login: Sat Jan 16 00:48:17 2021 on ttyS0
Linux pa8200 2.4.0-32 #1 Thu Jun 28 11:49:00 BST 2001 parisc unknown




From - Thu Nov 08 21:19:00 2018
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Subject: [parisc-linux] [newbie] gcc/glibc problems
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I installed the 0.9.2 iso on my C200, then proceeded to get some
development tools installed. This seemed to go well, but this simple
test-program:

#include <stdio.h>

int main(void)
{
   printf("int=%d\n", sizeof(int));
   exit(0);
}

didn't compile at all:

In file included from test.c:1:
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:37:23: features.h: No such file or directory
In file included from /usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:43,
                 from test.c:1:
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stddef.h:199: syntax error before "typedef"
In file included from test.c:1:
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:45:25: bits/types.h: No such file or directory
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:74:19: libio.h: No such file or directory
In file included from test.c:1:
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:89: parse error before "fpos_t"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:138:28: bits/stdio_lim.h: No such file or directory
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:151: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:153: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:158: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:170: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:193: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:195: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:211: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:215: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:263: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:268: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:283: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:285: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:288: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:292: parse error before "_G_va_list"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:294: parse error before "_G_va_list"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:298: parse error before "_G_va_list"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:335: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:337: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:340: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:360: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:361: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:364: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:383: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:384: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:387: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:416: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:426: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:451: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:460: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:464: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:469: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:472: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:484: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:486: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:488: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:504: parse error before "fpos_t"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:507: parse error before '*' token
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:540: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:542: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:544: parse error before "__THROW"
/usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:555: parse error before "__THROW"
test.c:3: syntax error before "int"

The same source compiles fine on my intel box. 

gcc -v says:

jurriaan@pa8200:~$ gcc -v
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0.2/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man
--enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-long-long --enable-nls --without-included-gettext --disable-c
hecking --enable-threads=posix --with-cpp-install-dir=bin hppa-linux
Thread model: posix
gcc version 3.0.2 20010825 (Debian prerelease)
jurriaan@pa8200:~$

which seems recent enough.

Did I miss something? Or is this 'Debian prerelease' not the one I should
get? I used

apt-get update
apt-get upgrade
apt-get install gcc

Pointers to FAQs gratefully accepted, BTW.

Greetings,
Jurriaan
-- 
You can't leave now! You just won!
	DS 9 - Quark
GNU/Linux 2.4.9-ac2 SMP/ReiserFS 2x1402 bogomips load av: 0.04 0.05 0.05




From - Thu Nov 08 21:19:00 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] [newbie] gcc/glibc problems
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On Thu, Aug 30, 2001 at 07:32:55AM +0200, thunder7@xs4all.nl wrote:
> In file included from test.c:1:
> /usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:37:23: features.h: No such file or directory
> In file included from /usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:43,

do you have libc6-dev installed?

-- 
Revolutions do not require corporate support.




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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Betr.: Re: [parisc-linux] [newbie] gcc/glibc problems
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>On Thu, Aug 30, 2001 at 07:32:55AM +0200, thunder7@xs4all.nl wrote:
>> In file included from test.c:1:
>> /usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:37:23: features.h: No =
such file or directory
>> In file included from /usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:=
43,
>
>do you have libc6-dev installed?
>
Hmm, I'd have to check that - but shouldn't that be a dependency, if it's =
needed for even
the simplest use of gcc?

I'm sorry if this goes off-topic here, I'll try not to bother this list =
with debian questions.

Thanks,
Jurriaan





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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] [newbie] gcc/glibc problems
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Quoth Jurriaan Kalkman:
> >do you have libc6-dev installed?
>
> Hmm, I'd have to check that - but shouldn't that be a dependency, if
> it's needed for even the simplest use of gcc?

Interestingly, no.  Use of gcc does not necessitate use of the libc 2.2
headers.  While I suppose it would be very unusual to not use the
installed libc they've not made it such that you are forced to.

> I'm sorry if this goes off-topic here, I'll try not to bother this
> list with debian questions.

There's the debian-hppa list too.  =)

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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On Thu, Aug 30, 2001 at 06:59:07AM +0100, Matthew Wilcox wrote:
> On Thu, Aug 30, 2001 at 07:32:55AM +0200, thunder7@xs4all.nl wrote:
> > In file included from test.c:1:
> > /usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:37:23: features.h: No such file or directory
> > In file included from /usr/lib/gcc-lib/hppa-linux/3.0.2/include/stdio.h:43,
> 
> do you have libc6-dev installed?
> 
I do now, and I can compile (Whoohoo!) but it seems to have some
side-effects:

pa8200:/usr/bin# find
Inconsistency detected by ld.so: dynamic-link.h: 62: elf_get_dynamic_info: Assertion `! "bad dynamic tag"' failed!
pa8200:/usr/bin# ldd find
Inconsistency detected by ld.so: dynamic-link.h: 62: elf_get_dynamic_info: Assertion `! "bad dynamic tag"' failed!
Inconsistency detected by ld.so: dynamic-link.h: 62: elf_get_dynamic_info: Assertion `! "bad dynamic tag"' failed!
ldd: /lib/ld.so.1 exited with unknown exit code (127)
pa8200:/usr/bin# ls -l /lib/ld.so*
lrwxrwxrwx    1 root     root           11 Mar 26  2024 /lib/ld.so.1 -> ld-2.2.3.so
pa8200:/usr/bin# ls -l /lib/ld-2.2.3.so
-rwxr-xr-x    1 root     root       117924 Jul 30 16:45 /lib/ld-2.2.3.so

I am sure find was working before. I'll start reading up on apt-get/dpkg
(what package does this file belong to? Forceful upgrading? etc.)

Jurriaan
-- 
I never think, sir. Didn't get a degree.
Chief Inspector Morse
GNU/Linux 2.4.9-ac2 SMP/ReiserFS 2x1402 bogomips load av: 0.08 0.02 0.03




From - Thu Nov 08 21:19:00 2018
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From: "Pedot, Wolfgang" <wpedot@harris.com>
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Subject: [parisc-linux] Kernel 2.4.9-pa10 now works on 715/75! Sound?
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Hi,

at last kernel 2.4.9-pa10 worked on my 715/75 but I still can=B4t use =
the
sound-chip although the CVS-Log for harmony.c says
"- harmony.c: support all kinds of 712/715 machines again" for Revision =
1.13.
Anybody had any luck using the soundchip on a 715 machine?

greetings
Wolfgang Pedot




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Subject: Re: [parisc-linux] Kernel 2.4.9-pa10 now works on 715/75! Sound?
Date: Thu, 30 Aug 2001 16:52:44 +0200
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On Thursday 30 August 2001 15:20, Pedot, Wolfgang wrote:
> Hi,
>
> at last kernel 2.4.9-pa10 worked on my 715/75 but I still cant use the
> sound-chip although the CVS-Log for harmony.c says
> "- harmony.c: support all kinds of 712/715 machines again" for Revision
> 1.13. Anybody had any luck using the soundchip on a 715 machine?
>
> greetings
> Wolfgang Pedot

Hi Wolfgang,

congrats for your success!

Regarding the harmony sound-driver: please set your output-level with
aumix and play a .mp3 file with mpg123. This worked for me on a 715/64.
If not feel free to send me your dmesg to <deller@gmx.de> so I could try 
to analyze it.

Greetings,
Helge




From - Thu Nov 08 21:19:00 2018
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From: "Pedot, Wolfgang" <wpedot@harris.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Kernel 2.4.9-pa10 now works on 715/75! Sound?
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Hi,

no luck with aumix. "Error opening mixer".
I expected that because i get Error-Messages about problems with getting irq at
bootup, dmesg attached.

greetings
Wolfgang

Linux version 2.4.9-pa10 (root@ran-248-105) (gcc version 3.0.1 20010811 (Debian
prerelease)) #11 Thu Aug 30 14:47:54 CEST 2001
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Determining PDC firmware type: Older Legacy Box
model	00003160 00000481 00000000 00000000 77d91f19 ffffffff 00000004 0000000a
0000000a
vers	00000013
CPUID	vers 0 rev 0
model	9000/715
Total Memory: 256 Mb
On node 0 totalpages: 65536
zone(0): 65536 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Searching for devices...
Using Alex's odd 715/old exception, onboard graphics won't be inventoried!
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0, 0x77
2. Scorpio Sr. Core BA (11) at 0xf082f000, versions 0x19, 0x0, 0x70
3. Scorpio Sr. Core SCSI (10) at 0xf0825000, versions 0x19, 0x0, 0x71
4. Scorpio Sr. Core LAN (802.3) (10) at 0xf0826000, versions 0x19, 0x0, 0x72
5. Scorpio Sr. Core HIL (10) at 0xf0821000, versions 0x19, 0x0, 0x73
6. Scorpio Sr. Core RS-232 (10) at 0xf0823000, versions 0x19, 0x0, 0x75
7. Scorpio Sr. Core RS-232 (10) at 0xf0822000, versions 0x19, 0x0, 0x75
8. Scorpio Sr. Core Centronics (10) at 0xf0824000, versions 0x19, 0x0, 0x74
9. Scorpio Sr. Audio (10) at 0xf1000000, versions 0x19, 0x0, 0x7b
10. Scorpio Sr. EISA BA (11) at 0xfc000000, versions 0x19, 0x0, 0x76
11. Scorpio Sr.(715/75) (0) at 0xfffbe000, versions 0x316, 0x0, 0x4
12. Scorpio Sr. (1) at 0xfffbf000, versions 0x27, 0x0, 0x9
That's a total of 12 devices.
CPU(s): 1 x PA7100 (PCX-T) at 75.000000 MHz
Kernel command line: root=/dev/sda3 HOME=/ console=ttyS0
Error reading tod clock
Console: colour dummy device 160x64
Calibrating delay loop... 74.75 BogoMIPS
Memory: 255600k available
Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
POSIX conformance testing by UNIFIX
Asp version 1 at 0xf0800000 found.
LED (ASP-style) display at f0800020 registered
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI
enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Found HIL at 0xf0821000, IRQ 94
HIL: keyboard found at id 2
HIL: keymap loaded.
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
loop: loaded (max 8 devices)
Found i82596 at 0xf0826000, IRQ 87
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 91 B8 3A IRQ 87.
82596.c $Revision: 1.22 $
SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: SEAGATE   Model: ST34520N          Rev: 1498
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sda: 8888924 512-byte hdwr sectors (4551 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
busdevice_alloc_irq(0x102cc664): No known LASI/ASP/WAX owns device at 0xf1000000
!
harmony_driver_callback: problem getting irq
Warning : device (10, 0x19, 0x0, 0x7b) NOT claimed by Lasi Harmony
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 16384 bind 32768)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Adding Swap: 120476k swap-space (priority -1)
eth0: link ok.


> -----Original Message-----
> From:	Helge Deller [SMTP:helge.deller@sap.com]
> Sent:	Thursday, August 30, 2001 4:53 PM
> To:	Pedot, Wolfgang; 'Parisc Linux Mailinglist'
> Subject:	Re: [parisc-linux] Kernel 2.4.9-pa10 now works on 715/75! Sound?
> 
> On Thursday 30 August 2001 15:20, Pedot, Wolfgang wrote:
> > Hi,
> >
> > at last kernel 2.4.9-pa10 worked on my 715/75 but I still cant use the
> > sound-chip although the CVS-Log for harmony.c says
> > "- harmony.c: support all kinds of 712/715 machines again" for Revision
> > 1.13. Anybody had any luck using the soundchip on a 715 machine?
> >
> > greetings
> > Wolfgang Pedot
> 
> Hi Wolfgang,
> 
> congrats for your success!
> 
> Regarding the harmony sound-driver: please set your output-level with
> aumix and play a .mp3 file with mpg123. This worked for me on a 715/64.
> If not feel free to send me your dmesg to <deller@gmx.de> so I could try 
> to analyze it.
> 
> Greetings,
> Helge
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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On Thu, Aug 30, 2001 at 11:06:48AM -0400, Pedot, Wolfgang wrote:
> Hi,
> 
> no luck with aumix. "Error opening mixer".
> I expected that because i get Error-Messages about problems with getting irq at
> bootup, dmesg attached.

Bugs:

1. Doesn't work on 715/old

This driver doesn't work on 715/old machines, which include the 715/75.  The
chip used for this is technically called 'Vivace', which is identical to 
Harmony.  Should be easy to fix.  It has something to do with the way it is
reported by the inventory code.  The HPA is not that of Lasi or ASP so the
interrupts aren't registered properly.

This will get fixed once we have an iotree.  Coming soon...

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:19:00 2018
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From: Matthieu Delahaye <delahaym@pc5158e.esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel 2.4.9-pa10 now works on 715/75! Sound?
Date: Thu, 30 Aug 2001 17:58:40 +0200
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> 
> This will get fixed once we have an iotree.  Coming soon...


Currently, Harmony needs some bugs fixing.
I'll commit in the next few days a patch for it:
- Suppressing race access;
- Changing behaviour of read/write. These functions didn't respected fs/vfs interface.
- Add poll()
It's quite ready, but I've to correct some strange Harmony behaviour.
So, keep reading!

BTW, http://mkhppa1.esiee.fr/ is accessible again.
http://www.esiee.fr/puffin is still closed

Regards,
Matthieu Delahaye
http://mkhppa1.esiee.fr/ 
 
 




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On Thu, Aug 30, 2001 at 01:07:22PM +0200, thunder7@xs4all.nl wrote:
> On Thu, Aug 30, 2001 at 06:59:07AM +0100, Matthew Wilcox wrote:
> > 
> > do you have libc6-dev installed?
> > 
> I do now, and I can compile (Whoohoo!) but it seems to have some
> side-effects:
> 
> pa8200:/usr/bin# find
> Inconsistency detected by ld.so: dynamic-link.h: 62: elf_get_dynamic_info: Assertion `! "bad dynamic tag"' failed!

This behaviour was gone after a reboot.

On with compiling a kernel [ I still feel like I have a fabulous new
toy. May all you hppa-kernel-hackers be as merry as I am! ]

Jurriaan
-- 
D.J.'s, V.J.'s, pimps and trollops,
never mind music - this is bollocks.
	Skyclad - Penny Dreadful
GNU/Linux 2.4.9-ac2 SMP/ReiserFS 2x1402 bogomips load av: 0.45 0.12 0.04




From - Thu Nov 08 21:19:00 2018
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Subject: [parisc-linux] 2.4.9-pa10 hangs on c200+ after 'branching to kernel entry point'
Date: Thu, 30 Aug 2001 21:57:14 +0200
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did I configure somethings wrong? I grabbed linux-latest yesterday,
and did a 

make oldconfig
make config

I did change the CPU-type to PA8x00, and set CONFIG_PA20 to y.

That should still work, right?

I have the feeling I'm asking a lot of questions.

Jurriaan


2/boot/vmlinux-2.4.9-pa10 root=/dev/sda2 HOME=/ console=ttyS0 TERM=vt102
 0: 2/boot/vmlinux-2.4.9-pa10
 1: root=/dev/sda2
 2: HOME=/
 3: console=ttyS0
 4: TERM=vt102

Edit which field?
(or 'b' to boot with this command line)? b

Command line: 'root=/dev/sda2 HOME=/ console=ttyS0 TERM=vt102'

Kernel: partition 2 file /boot/vmlinux-2.4.9-pa10
ext2 block size 4096
ext2_mount(partition 2) returns 0
ext2_open(/boot/vmlinux-2.4.9-pa10) = 3
ELF32 executable
Entry 00100028 first 00100000 n 4
Segment 0 load 00100000 size 1720172 mediaptr 0x1000
Segment 1 load 002a4000 size 282416 mediaptr 0x1a5000
Segment 2 load 002ec000 size 385024 mediaptr 0x1ea000
Segment 3 load 0037f530 size 87984 mediaptr 0x248530
branching to kernel entry point 0x00100028
=============================
jurriaan@pa8200:~/source/linux$ ls -l /boot
total 7020
-rw-r--r--    1 root     root       593072 Jan 16  2021 System.map-2.4.0
-rw-r--r--    1 root     disk       552272 Aug 30 23:21 System.map-2.4.9-pa10
-rw-r--r--    1 root     root         3949 Jan 16  2021 config-2.4.0
-rw-r--r--    1 root     disk        13616 Aug 30 23:21 config-2.4.9-pa10
-rw-r--r--    1 root     root        26624 Jul 11 19:08 iplboot
-rw-r--r--    1 root     root      2853588 Jan 16  2021 vmlinux-2.4.0
-rwxr-xr-x    1 root     disk      3118114 Aug 30 23:20 vmlinux-2.4.9-pa10
jurriaan@pa8200:~/source/linux$ cat /etc/palo.conf
--bootloader=/boot/iplboot
--commandline=2/boot/vmlinux-2.4.9-pa10 root=/dev/sda2 HOME=/
--recoverykernel=/boot/vmlinux-2.4.0
--init-partitioned=/dev/sda
jurriaan@pa8200:~/source/linux$ egrep "m$|y$" .config
CONFIG_PARISC=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_EXPERIMENTAL=y
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_GSC=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_WAX_EISA=y
CONFIG_SUPERIO=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_PCI_NAMES=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_HOTPLUG=y
CONFIG_NET=y
CONFIG_SYSVIPC=y
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=y
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_PARPORT_PC_CML1=y
CONFIG_PARPORT_GSC=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_MD_RAID5=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
CONFIG_CHR_DEV_SG=y
CONFIG_SCSI_LASI=y
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_SYM53C8XX=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=y
CONFIG_NET_PCI=y
CONFIG_TULIP=y
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_HIL=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
CONFIG_UNIX98_PTYS=y
CONFIG_PRINTER=y
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
CONFIG_GENRTC=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_PROC_FS=y
CONFIG_DEVPTS_FS=y
CONFIG_EXT2_FS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FB_STI=y
CONFIG_FBCON_CFB2=y
CONFIG_FBCON_CFB4=y
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_STI=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y
CONFIG_SOUND=y
CONFIG_SOUND_HARMONY=y
CONFIG_MAGIC_SYSRQ=y

-- 
BOFH excuse #210:

We didn't pay the Internet bill and it's been cut off.
GNU/Linux 2.4.9-ac2 SMP/ReiserFS 2x1402 bogomips load av: 0.13 0.07 0.02




From - Thu Nov 08 21:19:00 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] 2.4.9-pa10 hangs on c200+ after 'branching to kernel entry point'
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On Thu, Aug 30, 2001 at 09:57:14PM +0200, thunder7@xs4all.nl wrote:
> I did change the CPU-type to PA8x00, and set CONFIG_PA20 to y.
> 
> That should still work, right?

Yes.  Just don't go to a 64-bit kernel.  You're not seeing any output
because of the current serial port snafu.  If you connect another cable
to your other serial port, you'll see the boot messages.  I've found
someone in the firmware team who worked on C200-era firmware to talk to
now, but he's not at his desk right now.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:19:01 2018
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From: =?ISO-8859-1?Q?R=FCdiger?= Scholz <rscholz@hrzpub.tu-darmstadt.de>
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Subject: [parisc-linux] Kernel failures
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  Hi there!

When I played a little bit  with the kernel, I found some failures.
My machine is a 715/100 with a second  Graphics-Card (Coral SGC). If the 
second graphics card is disable (I just pulled off the ribbon cable), 
the machine boots fine even with stifb enabled. Now I tried to boot with 
the second card enabled, so I disable stifb (which supports only one 
graphics card atm) and enabled STI-Console only.  Booting this kernel, 
it detects my two graphic cards, but crashed when callling the functionn 
sti_init_graph for the second card. I used the kernel 2.4.7-pa1.
The last Bootmessages are:
SNIP----------
        sticonsole_init: searching for STI ROMs
        STI word mode ROM at f0025000, hpa=f8000000
        STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
        STI device: HPA208LC1024
        STI word mode ROM at f0025000, hpa=f4000000
        STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
SNAP---------

Trying the same thing with kernel 2.4.9-pa5 leeds to a crash right after 
detecting the first card.
SNIP----------
        sticonsole_init: searching for STI ROMs
        STI word mode ROM at f0025000, hpa=f4000000
        STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
SNAP---------

The other failures I found are:  
1. Every time my machine dumps the stack, and I check GR02 and IAOQ, 
they tell me that the function which trashed the kernel are 
parisc_terminate and parisc_showstack (or s.th like that). This isn't 
normal, isn't it?
2. Enabling IO_HPPA_REMAP in io.h causes a error in ioremap.c while 
compiling the kernel:
SNIP----------
            ioremap.c: In function `remap_area_pages':
            ioremap.c:79: warning: passing arg 1 of `pmd_alloc' from 
incompatible pointer type
            ioremap.c:79: warning: passing arg 2 of `pmd_alloc' makes 
pointer from integer without a cast
            ioremap.c:79: too few arguments to function `pmd_alloc'
SNAP----------

3. Enabling SMB-Fs in the kernel gives an error message:
SNIP-----------
        gcc -D__KERNEL__ -I/usr/src/linux/include -Wall 
-Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer 
-fno-strict-aliasing -fno-common
               -D__linux__ -pipe -fno-strength-reduce -mno-space-regs 
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1 
-mschedule=7100LC
               -DSMBFS_PARANOIA  -c -o ioctl.o ioctl.c
        ioctl.c: In function `smb_ioctl':
        ioctl.c:31: `__kernel_old_uid_t' undeclared (first use in this 
function)
        ioctl.c:31: (Each undeclared identifier is reported only once
        ioctl.c:31: for each function it appears in.)
        make[3]: *** [ioctl.o] Fehler 1
        make[3]: Leaving directory `/usr/src/linux/fs/smbfs'
        make[2]: *** [first_rule] Fehler 2
        make[2]: Leaving directory `/usr/src/linux/fs/smbfs'
        make[1]: *** [_subdir_smbfs] Fehler 2
        make[1]: Leaving directory `/usr/src/linux/fs'
        make: *** [_dir_fs] Fehler 2
SNAP-----------
4. My HIL-Keyboard isn't detected anymore by the new 2.4.9-kernel. Using 
Kernel 2.4.7-pa1, after the initalisation of HIL, I get a bootmessage like
 "HIL: keyboard found".  Booting the new Kernel gives me only the two 
lines of HIL initalisation, but nothing about my Keyboard. Which is a 
PS/2-Keyboard on a HIL-Adaptorbox. Both Kernel were configured via "make 
oldconfig".

That's all folks!! ;-)

I would really like to solve these problems and support a patch for 
them. But as I'm not a kernel hacker guy, the only assistence I can give 
is to test new code and to report wether it works or not.
Can somebody with more knowledge about kernelhacking have a look at 
these failures?
Thanks,
        Rdiger






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Subject: Re: [parisc-linux] 2.4.9-pa10 hangs on c200+ after 'branching to kernel entry point'
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On Thu, Aug 30, 2001 at 09:09:33PM +0100, Matthew Wilcox wrote:
> On Thu, Aug 30, 2001 at 09:57:14PM +0200, thunder7@xs4all.nl wrote:
> > I did change the CPU-type to PA8x00, and set CONFIG_PA20 to y.
> > 
> > That should still work, right?
> 
> Yes.  Just don't go to a 64-bit kernel.  You're not seeing any output
> because of the current serial port snafu.  If you connect another cable
> to your other serial port, you'll see the boot messages.  I've found
> someone in the firmware team who worked on C200-era firmware to talk to
> now, but he's not at his desk right now.
> 
Where can I find any info on 'the current serial port snafu'? Is this
the same problem as mentioned on the 5th of August 'more serial problems
on D310' ?

Jurriaan
-- 
BOFH excuse #279:

The static electricity routing is acting up...
GNU/Linux 2.4.9-ac2 SMP/ReiserFS 2x1402 bogomips load av: 0.06 0.03 0.01




From - Thu Nov 08 21:19:01 2018
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On Fri, Aug 31, 2001 at 06:56:15AM +0200, Rdiger Scholz wrote:
> The last Bootmessages are:
> SNIP----------
>         sticonsole_init: searching for STI ROMs
>         STI word mode ROM at f0025000, hpa=f8000000
>         STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
>         STI device: HPA208LC1024
>         STI word mode ROM at f0025000, hpa=f4000000
>         STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
> SNAP---------
> 
> Trying the same thing with kernel 2.4.9-pa5 leeds to a crash right after 
> detecting the first card.
> SNIP----------
>         sticonsole_init: searching for STI ROMs
>         STI word mode ROM at f0025000, hpa=f4000000
>         STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
> SNAP---------

Notice that both stop after trying hpa f4000000.  I think this is probably
where the bug lies.  I did change the detection order between than and now.

> 1. Every time my machine dumps the stack, and I check GR02 and IAOQ, 
> they tell me that the function which trashed the kernel are 
> parisc_terminate and parisc_showstack (or s.th like that). This isn't 
> normal, isn't it?

No.  There's astk in the build-tools CVS module which will dissect that
stack dump for you and maybe show you what's really going on.

> 2. Enabling IO_HPPA_REMAP in io.h causes a error in ioremap.c while 

Don't do that then :-)

> 3. Enabling SMB-Fs in the kernel gives an error message:

Yeah... i promised to fix this a while back; haven't got round to it yet.

> 4. My HIL-Keyboard isn't detected anymore by the new 2.4.9-kernel. Using 
> Kernel 2.4.7-pa1, after the initalisation of HIL, I get a bootmessage like
>  "HIL: keyboard found".  Booting the new Kernel gives me only the two 
> lines of HIL initalisation, but nothing about my Keyboard. Which is a 
> PS/2-Keyboard on a HIL-Adaptorbox. Both Kernel were configured via "make 
> oldconfig".

I'm interested in debugging this one - I don't quite understand what's going on though.  You should see:

Found HIL at 0x%x, IRQ %d

then one of:

HIL: timed out, assuming no keyboard present.
HIL: no keyboard present.
HIL: keyboard found at id %d

which?

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] 2.4.9-pa10 hangs on c200+ after 'branching to kernel entry point'
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On Fri, Aug 31, 2001 at 06:57:32AM +0200, thunder7@xs4all.nl wrote:
> Where can I find any info on 'the current serial port snafu'? Is this
> the same problem as mentioned on the 5th of August 'more serial problems
> on D310' ?

http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2001-August/029567.html
it almost certainly is the same problem which was reported by the D310 owner.

fyi, i committed option 1 earlier today.

-- 
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From: =?ISO-8859-1?Q?R=FCdiger?= Scholz <rscholz@hrzpub.tu-darmstadt.de>
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Matthew Wilcox wrote:

>>4. My HIL-Keyboard isn't detected anymore by the new 2.4.9-kernel. Using 
>>Kernel 2.4.7-pa1, after the initalisation of HIL, I get a bootmessage like
>> "HIL: keyboard found".  Booting the new Kernel gives me only the two 
>>lines of HIL initalisation, but nothing about my Keyboard. Which is a 
>>PS/2-Keyboard on a HIL-Adaptorbox. Both Kernel were configured via "make 
>>oldconfig".
>>
>
>I'm interested in debugging this one - I don't quite understand what's going on though.  You should see:
>
>Found HIL at 0x%x, IRQ %d
>
>then one of:
>
>HIL: timed out, assuming no keyboard present.
>HIL: no keyboard present.
>HIL: keyboard found at id %d
>
>which?
>
Sorry!! I looked at the wrong File. I get the following messages:
Snip------------
        Found HIL at 0xf0201000, IRQ 126
        HIL: keyboard found at id 0
        HIL: keymap loaded.
Snap-----------

But thanks for your quick answer!

Rdiger






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On Fri, Aug 31, 2001 at 06:56:15AM +0200, Rdiger Scholz wrote:
> When I played a little bit  with the kernel, I found some failures.
> My machine is a 715/100 with a second  Graphics-Card (Coral SGC). If the 

Could you change kernel/printk.c, line 36 from:
#define DEFAULT_CONSOLE_LOGLEVEL 7 /* anything MORE serious than KERN_DEBUG */
to:
#define DEFAULT_CONSOLE_LOGLEVEL 9 /* anything MORE serious than KERN_DEBUG */

This should print out more debug messages and might help diagnose the problem.

-- 
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Hello everyone,
	I'm seem to be having trouble booting into linux on my 712/60. I hope 
someone can help. I have built a new kernel (from cvs) and also set up 
an nfs root. When I try to boot the linux boots up to the point where it 
says "Cleaning: /tmp/ /var/lock /var/run" and then it just hangs. Any 
idea what is cause it to hang? Could there be a problem with the nfsroot?

James





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From: rbradetich@uswest.net (Ryan Bradetich)
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Subject: [parisc-linux] Re: parisc-linux / C200 / power-down
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On Fri, Aug 31, 2001 at 05:58:43PM -0600, Grant Grundler wrote:
> thunder7@xs4all.nl wrote:
> > I would like to know if your C200 also has the following:
> > 
> > If I issue a 'shutdown -h now', after a while the screen says 'Power
> > down.' - but it doesn't react to the power-button, I have to yank out
> > the power-cord to get it to shut down.
> > 
> > You too?

I just tested this (I usually use the reboot option) and confirmed it 
does not shutdown after the Power down.  Simpling hitting the power
button turned it off for me, but I do have to pull the power cord
a lot on this machine.

> First, I don't have a C200 - only C3000 and A500.
> I gave my C200 to a developer in Canada.
> 
> Second, the soft power control is slightly different for different
> machines. Info for Soft power control hasn't be published AFAIK.
> I've bundled some of it together and passed it on to someone once
> already but they haven't had time to work on it.
> 
> Ryan, does it work for you?
> (and assuming it doesn't, want more info to try to fix it?)
> grant

Yes, I would be interested in fixing this.

Thanks,

- Ryan

> Grant Grundler
> parisc-linux {PCI|IOMMU|SMP} hacker
> +1.408.447.7253
> 

-- 




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I just took a look at /proc/ioports on my j7k (running 2.4.9-pa1) and
I'm a little confused by what I see:

willy@jagu:~$ cat /proc/ioports 
00000000-00001ffe : LBA PCI I/O Ports
  00000020-0000003e : pic1
  000000a0-000000be : pic2
  000002f8-000002ff : serial(auto)
  00000378-0000037a : parport0
  000003f8-000003ff : serial(auto)
  00000800-000008ff : sym53c8xx
  00001000-0000107f : tulip
00004000-00004007 : serial(auto)
00004100-00004107 : serial(auto)
00004200-00004207 : serial(auto)
00004300-00004307 : serial(auto)
00012000-00013ffe : LBA PCI I/O Ports
00024000-00025ffe : LBA PCI I/O Ports
00038000-00039ffe : LBA PCI I/O Ports
0004c000-0004dffe : LBA PCI I/O Ports

(the only pci card i have in there is a quad-serial card).

First, why do all the ioport ranges go to ffe?  Surely it should be fff?
If so, we should make this change:

@@ -1189,8 +1193,7 @@ lba_legacy_resources(struct parisc_devic
        r->name  = "LBA PCI I/O Ports";
        r->flags = IORESOURCE_IO;
        r->start = READ_REG32(pa_dev->hpa + LBA_IOS_BASE) & ~1L;
-       r->end   = r->start +
-           (READ_REG32(pa_dev->hpa + LBA_IOS_MASK) ^ (HBA_PORT_SPACE_SIZE - 1)) - 1;
+       r->end   = r->start + (READ_REG32(pa_dev->hpa + LBA_IOS_MASK) ^ (HBA_PORT_SPACE_SIZE - 1));
 
        /* Virtualize the I/O Port space ranges */
        lba_num = HBA_PORT_BASE(lba_dev->hba.hba_num);

And then, what are the four serial entries doing off by themselves?
Surely these should be underneath one of the elroys?  /proc/pci says
they're on bus2, so I guess they should be under the 00024000-00025ffe
range (25fff?  :-).  I think the problem is that the start/end pair
aren't getting updated in the bus fixup.  In which case, the patch looks
like this:

@@ -707,6 +707,7 @@ lba_fixup_bus(struct pci_bus *bus)
        u16 status;
 #endif
        struct lba_device *ldev = LBA_DEV(bus->sysdata);
+       int lba_portbase = HBA_PORT_BASE(ldev->hba.hba_num);
 #ifdef __LP64__
        int i;
 #endif
@@ -805,6 +806,9 @@ lba_fixup_bus(struct pci_bus *bus)
                                /* "Globalize" PCI address */
                                res->start |= ldev->lmmio_base;
                                res->end   |= ldev->lmmio_base;
+                       } else if (res->flags & IORESOURCE_IO) {
+                               res->start |= lba_portbase;
+                               res->end   |= lba_portbase;
                        }
                }
 #endif

comments, please.

-- 
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Hallo,

I've download the last lifimage - 0.9.2 Network Install ISO -. My bootp
server is a Linux box. I think, that I've installed properly, because my 712
find this lifimage and load it for a while. I can see this at my HUB, than
it hangs ...

I've got a HP712/60 with graphic display, no seriell console connected.
Where is the mistake hide?

Look at the output when booting from lan:

---snip---

BOOT_ADMIN> bo lan



palo ipl 0.92 root@spqr Mon Jun 25 23:03:13 CEST 2001
0/vmlinux32 2853588 bytes @ 0x154c000
0/vmlinux64 3585851 bytes @ 0x1805000
0/ramdisk 1991209 bytes @ 0x1b70800

Command line: 'root=/dev/ram console=tty0 sti=0 sti_font=VGA9x16 TERM=linux'

Kernel: partition 0 file /vmlinux
Ramdisk: partition 0 file /ramdisk
Warning: kernel name doesn't end with 32 or 64... Guessing Annoyance:
Firmware
does not support PDV_MODEL_CAPABILITIES cell
32

ERROR: Read from boot device failed (status = -3).
byteio_read: seekread() returned -1 expected 2048

ERROR: Read from boot device failed (status = -3).
byteio_read: seekread() returned -1 expected 2048
Couldn't grok your kernel executable format
failed to load kernel

---snip---

Andreas





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Subject: [parisc-linux] What's a "Trace/breakpoint trap" and why does he crash my system?
Date: Sat, 1 Sep 2001 15:50:06 +0200
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Well, I can boot 2.4.9-pa13 just fine on my C200, but trying to compile
a kernel under that version never works, typing

make proper

in the source directory doesn't produce any output but

Trace/breakpoint error

after one second or so.

I realize this is a worthless bug-report, but where does that message
come from? The text is nowhere in the kernel-sources, so it must be
something else.

Greetings,
Jurriaan
-- 
HORROR FILM WISDOM:
1. When it seems that you've killed the monster, never check to see if
it's really dead.
GNU/Linux 2.4.9-ac5 SMP/ReiserFS 2x1402 bogomips load av: 0.14 0.12 0.04




From - Thu Nov 08 21:19:01 2018
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Subject: Re: [parisc-linux] HP712/60 Hang when booting over the network
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On Sat, Sep 01, 2001 at 02:45:25PM +0200, Andreas Hrtel wrote:
> Kernel: partition 0 file /vmlinux
> Ramdisk: partition 0 file /ramdisk
> Warning: kernel name doesn't end with 32 or 64... Guessing Annoyance:
> Firmware
> does not support PDV_MODEL_CAPABILITIES cell
> 32
> 
> ERROR: Read from boot device failed (status = -3).
> byteio_read: seekread() returned -1 expected 2048
> 
> ERROR: Read from boot device failed (status = -3).
> byteio_read: seekread() returned -1 expected 2048
> Couldn't grok your kernel executable format
> failed to load kernel
> 
> ---snip---

That's very strange.  Can you tcpdump to see what packets are going
across the wire?  It almost looks as if your tftpd died halfway through
the transfer.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] What's a "Trace/breakpoint trap" and why does he crash my system?
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On Sat, Sep 01, 2001 at 03:50:06PM +0200, thunder7@xs4all.nl wrote:
> Well, I can boot 2.4.9-pa13 just fine on my C200, but trying to compile
> a kernel under that version never works, typing
> 
> make proper
> 
> in the source directory doesn't produce any output but
> 
> Trace/breakpoint error

should be 'Trace/breakpoint trap'
> 
> after one second or so.
> 
> I realize this is a worthless bug-report, but where does that message
> come from? The text is nowhere in the kernel-sources, so it must be
> something else.
> 
I tried running make under strace, and it ran fine. So I tried it again,
and I saw this:

--- SIGCHLD (Child exited) ---
rt_sigreturn(0)                         = -1 EINTR (Interrupted system call)
read(4, "", 193)                        = 0
close(4)                                = 0
wait4(-1, [WIFEXITED(s) && WEXITSTATUS(s) == 0], 0, NULL) = 265
pipe([4, 5])                            = 0
fork()                                  = 268
close(5)                                = 0
read(4, "/bin/sh\n", 200)               = 8
read(4, "", 192)                        = -512
--- SIGCHLD (Child exited) ---
rt_sigreturn(0)                         = -1 EINTR (Interrupted system call)
read(4, "", 192)                        = 0
close(4)                                = 0
wait4(-1, [WIFEXITED(s) && WEXITSTATUS(s) == 0], 0, NULL) = 268
pipe([4, 5])                            = 0
fork()                                  = 269
--- SIGCHLD (Child exited) ---
rt_sigreturn(0)                         = 269
close(5)                                = 0
read(4, "/home/jurriaan/source/linux-2001"..., 200) = 37
read(4, "", 163)                        = 0
close(4)                                = 0
wait4(-1, [WIFEXITED(s) && WEXITSTATUS(s) == 0], 0, NULL) = 269
read(3, "+= drivers/scsi/scsidrv.o\nDRIVER"..., 4096) = 4096
brk(0x4b000)                            = 0x4b000
brk(0x4c000)                            = 0x4c000
open("arch/parisc/Makefile", O_RDONLY|O_LARGEFILE) = 4
idle()                                  = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001a000
read(4, "#\n# parisc/Makefile\n#\n# This fil"..., 4096) = 3156
pipe([5, 6])                            = 0
fork()                                  = 270
close(6)                                = 0
read(5, "", 200)                        = -512
--- SIGCHLD (Child exited) ---
rt_sigreturn(0

and then it hang. On reboot, it gave the same 'Trace/breakpoint trap'
error, but didn't hang. Next time I tried it, it did hang.

Jurriaan
-- 
`That right?' Hawk gave MacReady a long, thoughtful look.
`I'll have to remember that.'
	Simon R Green - Hawk & Fisher II Fear and Loathing in Haven
GNU/Linux 2.4.9-ac5 SMP/ReiserFS 2x1402 bogomips load av: 0.05 0.15 0.08




From - Thu Nov 08 21:19:01 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] What's a "Trace/breakpoint trap" and why does he crash my system?
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On Sat, Sep 01, 2001 at 08:32:32PM +0200, thunder7@xs4all.nl wrote:
> should be 'Trace/breakpoint trap'

hmm.. what version of glibc do you have installed?  something else you
can do is run strace -ff which will attempt to follow fork/clone/vfork.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] What's a "Trace/breakpoint trap" and why does he crash my system?
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On Sat, Sep 01, 2001 at 08:14:55PM +0100, Matthew Wilcox wrote:
> On Sat, Sep 01, 2001 at 08:32:32PM +0200, thunder7@xs4all.nl wrote:
> > should be 'Trace/breakpoint trap'
> 
> hmm.. what version of glibc do you have installed?  something else you
> can do is run strace -ff which will attempt to follow fork/clone/vfork.
> 
2.2.3-9. 2.2.4 is out, I know.

strace -ff:

idle()                                  = 0
fcntl(8, F_SETFD, FD_CLOEXEC)           = 0
SYS_201(0x8, 0x555b0, 0x1000, 0x220e1407, 0) = 72
brk(0x58000)                            = 0x58000
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0x4001a000, 4096)                = 0
read(3, "+= drivers/scsi/scsidrv.o\nDRIVER"..., 4096) = 4096
open("arch/parisc/Makefile", O_RDONLY|O_LARGEFILE) = 4
idle()                                  = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001a000
read(4, "#\n# parisc/Makefile\n#\n# This fil"..., 4096) = 3156
pipe([9, 10])                           = 0
fork()                                  = 163
[pid   157] close(10)                   = 0
[pid   157] read(9,  <unfinished ...>
[pid   163] dup2(10, 1)                 = 1
[pid   163] close(10)                   = 0
[pid   163] execve("/usr/local/bin/uname", ["uname", "-m"], [/* 17 vars */]) = -1 ENOENT (No such file or directory)
[pid   163] execve("/usr/bin/uname", ["uname", "-m"], [/* 17 vars */]) = -1074780648
[pid   163] execve("", [ptrace: umoven: Input/output error
0x2], [/* 2 vars */]) = 1073908880
[pid   163] brk(0)                      = 0x23000
[pid   163] open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid   163] open("/etc/ld.so.cache", O_RDONLY) = 5
[pid   163] idle()                      = 0
[pid   163] mmap(NULL, 6556, PROT_READ, MAP_PRIVATE, 5, 0) = 0x40019000
[pid   163] close(5)                    = 0
[pid   163] open("/lib/libc.so.6", O_RDONLY) = 5
[pid   163] read(5, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\300"..., 1024) = 1024
[pid   163] idle()                      = 0
[pid   163] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001b000
[pid   163] mmap(NULL, 1417616, PROT_READ|PROT_EXEC, MAP_PRIVATE, 5, 0) = 0x4002a000
[pid   163] mprotect(0x40167000, 119184, PROT_NONE) = 0
[pid   163] mmap(0x40176000, 45056, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 5, 0x13c000) = 0x40176000
[pid   163] mmap(0x40181000, 12688, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40181000
[pid   163] close(5)                    = 0
[pid   163] mprotect(0x10000, 12288, PROT_READ|PROT_WRITE) = 0
[pid   163] mprotect(0x10000, 12288, PROT_READ|PROT_EXEC) = 0
[pid   163] munmap(0x40019000, 6556)    = 0
[pid   163] getpid()                    = 163
[pid   163] brk(0)                      = 0x23000
[pid   163] brk(0x23030)                = 0x23030
[pid   163] brk(0x24000)                = 0x24000
[pid   163] newuname({sys="Linux", node="pa8200", ...}) = 0
[pid   163] idle()                      = 0
[pid   163] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
[pid   163] write(1, "parisc\n", 7)     = 7
[pid   163] close(1)                    = 0
[pid   163] munmap(0x40019000, 4096)    = 0
[pid   163] exit(0)                     = ?
<... read resumed> "parisc\n", 200)     = 7
--- SIGCHLD (Child exited) ---
rt_sigreturn(0

Jurriaan
-- 
Treachery, treachery I fear; treachery of that miserable creature.
	JRR Tolkien - The Lord of the Rings.
GNU/Linux 2.4.9-ac5 SMP/ReiserFS 2x1402 bogomips load av: 0.09 0.09 0.02




From - Thu Nov 08 21:19:02 2018
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From: rbradetich@uswest.net (Ryan Bradetich)
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Subject: [parisc-linux] [PATCH] Delaying the device inventory detection time.
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--9amGYk9869ThD9tj
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Hello parisc-linux hackers,

This is the first patch of a series that will hopefully get
the long awaited iotree into the cvs kernel repository.  The
goal of this patch was to delay the parisc device detection
until main memory had been setup. 

The current scheme relies upon a static, non-freeable array
which must be large enough to contain all the devices the
parisc box could inventory.  By delaying the parisc device
detection routines until after main memory is setup will
allow us to use kmalloc and only allocate memory for the
number of parisc devices present in the system.  Delaying
the parisc device detection routines also simplify the code
required for setting up the iotree.

This patch does not do all that yet.... this patch still
leaves the static table in place, and the detection routines.
This patch just changes the location the parisc device 
inventory is called from setup_arch() to parisc_init()
[formerly know as gsc_init].  I am posting this patch to the 
list and asking people to test it with different class 
machines, because this patch is a dependency for the rest
of the iotree stuff I'm working on.  It is also a small
enough, logical change that if problems arise, it will be
easier to debug then if it was bundled in with the rest
of the iotree.

Patch Summary:
	* Move the do_device_inventory() from setup_arch()
	  to parisc_init().
	* Renames the poorly named gsc_init function
	  to parisc_init and moves from drivers/gsc/gsc.c
	  to arch/parisc/kernel/setup.c
	* Seperates the arch/parisc/kernel/setup.c file
	  into setup routines and the processor driver.
	* Removes the register_fallback_cpu code, it should
	  now be obsolete.

Feedback, testing welcome.  I have tested this patch on the
C200+ and a 712/100.

Thanks,

- Ryan

--9amGYk9869ThD9tj
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="inventory6.patch"

diff -u -p -r1.125 Makefile
--- Makefile	2001/08/31 06:02:18	1.125
+++ Makefile	2001/09/02 04:36:17
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 4
 SUBLEVEL = 9
-EXTRAVERSION = -pa13
+EXTRAVERSION = -pa14
 
 KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
 
diff -u -p -r1.36 Makefile
--- arch/parisc/kernel/Makefile	2001/07/08 12:41:52	1.36
+++ arch/parisc/kernel/Makefile	2001/09/02 04:36:17
@@ -24,7 +24,7 @@ obj-y           += cache.o pacache.o set
 		pa7300lc.o pci-dma.o syscall.o entry.o sys_parisc.o \
 		firmware.o ptrace.o hardware.o inventory.o drivers.o \
 		semaphore.o signal.o hpmc.o real2.o parisc_ksyms.o \
-		unaligned.o
+		unaligned.o processor.o
 
 export-objs	:= parisc_ksyms.o
 
--- /dev/null	Tue May  5 14:32:27 1998
+++ arch/parisc/kernel/processor.c	Sat Sep  1 22:36:18 2001
@@ -0,0 +1,335 @@
+/*    $Id: setup.c,v 1.8 2000/02/02 04:42:38 prumpf Exp $
+ *
+ *    Initial setup-routines for HP 9000 based hardware.
+ *
+ *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
+ *    Modifications for PA-RISC (C) 1999 Helge Deller <deller@gmx.de>
+ *    Modifications copyright 1999 SuSE GmbH (Philipp Rumpf)
+ *    Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net>
+ *    Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org>
+ *    Modifications copyright 2001 Ryan Bradetich <rbradetich@uswest.net>
+ *
+ *    Initial PA-RISC Version: 04-23-1999 by Helge Deller
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2, or (at your option)
+ *    any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+#include <linux/config.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#define PCI_DEBUG
+#include <linux/pci.h>
+#undef PCI_DEBUG
+
+#include <asm/cache.h>
+#include <asm/hardware.h>	/* for register_parisc_driver() stuff */
+#include <asm/processor.h>
+#include <asm/page.h>
+#include <asm/pdc.h>
+#include <asm/irq.h>		/* for struct irq_region */
+
+struct system_cpuinfo_parisc boot_cpu_data;
+struct cpuinfo_parisc cpu_data[NR_CPUS];
+
+/*
+**  	PARISC CPU driver - claim "device" and initialize CPU data structures.
+**
+** Consolidate per CPU initialization into (mostly) one module.
+** Monarch CPU will initialize boot_cpu_data which shouldn't
+** change once the system has booted.
+**
+** The callback *should* do per-instance initialization of
+** everything including the monarch. "Per CPU" init code in
+** setup.c:start_parisc() has migrated here and start_parisc()
+** will call register_parisc_driver(&cpu_driver) before calling do_inventory().
+**
+** The goal of consolidating CPU initialization into one place is
+** to make sure all CPU's get initialized the same way.
+** The code path not shared is how PDC hands control of the CPU to the OS.
+** The initialization of OS data structures is the same (done below).
+*/
+
+/**
+ * processor_probe - Determine if processor driver should claim this device.
+ * @dev: The device which has been found.
+ *
+ * Determine if processor driver should claim this chip (return 0) or not 
+ * (return 1).  If so, initialize the chip and tell other partners in crime 
+ * they have work to do.
+ */
+static int __init processor_probe(struct parisc_device *dev)
+{
+	unsigned long txn_addr;
+	unsigned long cpuid;
+	struct cpuinfo_parisc *p;
+
+#ifndef CONFIG_SMP
+	if (boot_cpu_data.cpu_count > 0) {
+		printk(KERN_INFO "CONFIG_SMP=n  ignoring additional CPUs\n");
+		return(1);
+	}
+#endif
+
+#ifdef __LP64__
+	if (is_pdc_pat()) {
+		ulong status;
+		unsigned long bytecnt;
+	        pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
+		struct pdc_pat_cpu_num cpu_info;
+
+		status = pdc_pat_cell_module(&bytecnt, dev->pcell_loc,
+			dev->mod_index, PA_VIEW, &pa_pdc_cell);
+
+		ASSERT(PDC_RET_OK == status);
+
+		/* verify it's the same as what do_pat_inventory() found */
+		ASSERT(dev->mod_info == pa_pdc_cell.mod_info);
+		ASSERT(dev->pmod_loc == pa_pdc_cell.mod_location);
+		ASSERT(dev->mod_path == pa_pdc_cell.mod_path);
+
+		txn_addr = pa_pdc_cell.mod[0];   /* id_eid for IO sapic */
+
+		/* get the cpu number */
+		status = pdc_pat_cpu_get_number(&cpu_info, dev->hpa);
+
+		ASSERT(PDC_RET_OK == status);
+
+		if(cpu_info.cpu_num >= NR_CPUS) {
+			printk(KERN_WARNING "IGNORING CPU at 0x%x,"
+				" cpu_slot_id > NR_CPUS"
+				" (%ld > %d)\n",
+				dev->hpa, cpu_info.cpu_num, NR_CPUS);
+			/* Ignore CPU since it will only crash */
+			boot_cpu_data.cpu_count--;
+			return(1);
+		} else {
+			cpuid = cpu_info.cpu_num;
+		}
+	} else
+#endif
+	{
+		txn_addr = dev->hpa;	/* for legacy PDC */
+
+		/* logical CPU ID and update global counter */
+		cpuid = boot_cpu_data.cpu_count;
+	}
+
+	p = &cpu_data[cpuid];
+	boot_cpu_data.cpu_count++;
+
+	/* initialize counters */
+	memset(p, 0, sizeof(struct cpuinfo_parisc));
+
+	p->dev = dev;		/* Save IODC data in case we need it */
+	p->hpa = dev->hpa;	/* save CPU hpa */
+	p->cpuid = cpuid;	/* save CPU id */
+	p->txn_addr = txn_addr;	/* save CPU hpa */
+
+	/*
+	** CONFIG_SMP: init_smp_config() will attempt to get CPU's into
+	** OS control. RENDEZVOUS is the default state - see mem_set above.
+	**	p->state = STATE_RENDEZVOUS;
+	*/
+
+	/*
+	** itimer and ipi IRQ handlers are statically initialized in
+	** arch/parisc/kernel/irq.c. ie Don't need to register them.
+	*/
+	p->region = irq_region[IRQ_FROM_REGION(CPU_IRQ_REGION)];
+
+	return 0;
+}
+
+/**
+ * collect_boot_cpu_data - Fill the boot_cpu_data structure.
+ *
+ * This function collects and stores the generic processor information
+ * in the boot_cpu_data structure.
+ */
+void __init collect_boot_cpu_data(void)
+{
+	memset(&boot_cpu_data,0,sizeof(boot_cpu_data));
+
+	boot_cpu_data.cpu_hz = 100 * PAGE0->mem_10msec; /* Hz of this PARISC */
+
+	/* get CPU-Model Information... */
+#define p ((unsigned long *)&boot_cpu_data.pdc.model)
+	if(pdc_model_info(&boot_cpu_data.pdc.model)==0)
+		printk(KERN_INFO 
+			"model	%08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+			p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8]);
+#undef p
+
+	if(pdc_model_versions(&boot_cpu_data.pdc.versions, 0)==0)
+		printk(KERN_INFO "vers\t%08lx\n", 
+			boot_cpu_data.pdc.versions);
+
+	if(pdc_model_cpuid(&boot_cpu_data.pdc.cpuid)==0)
+		printk(KERN_INFO "cpuid\t%08lx\n",
+			boot_cpu_data.pdc.cpuid);
+
+	printk(KERN_INFO "CPUID\tvers %ld rev %ld\n",
+		(boot_cpu_data.pdc.cpuid >> 5) & 127,
+		boot_cpu_data.pdc.cpuid & 31);
+
+	if (pdc_model_sysmodel(boot_cpu_data.pdc.sys_model_name)==0)
+		printk(KERN_INFO "model\t%s\n",
+			boot_cpu_data.pdc.sys_model_name);
+
+	boot_cpu_data.hversion =  boot_cpu_data.pdc.model.hversion;
+	boot_cpu_data.sversion =  boot_cpu_data.pdc.model.sversion;
+
+	boot_cpu_data.cpu_type =
+			parisc_get_cpu_type(boot_cpu_data.hversion);
+
+	boot_cpu_data.cpu_name = cpu_name_version[boot_cpu_data.cpu_type][0];
+	boot_cpu_data.family_name = cpu_name_version[boot_cpu_data.cpu_type][1];
+}
+
+/*
+** Set width/Enable FP coprocessor
+**
+** REVISIT: this could be done in the "code 22" trap handler.
+** (frowands idea - that way we know which processes need FP
+** registers saved on the interrupt stack.)
+**
+** NEWS FLASH: wide kernels need FP coprocessor enabled to handle
+** formatted printing of %lx for example (double divides I think)
+*/
+
+/**
+ * init_per_cpu - Handle individual processor initializations.
+ * @cpuid: The processor instance.
+ *
+ * This function handles any initialization that needs to be done
+ * on each indiviual processor in the system.
+ */
+int __init init_per_cpu(int cpuid)
+{
+	int ret;
+	struct pdc_coproc_cfg coproc_cfg;
+
+	ret = pdc_coproc_cfg(&coproc_cfg);
+
+	if(ret >= 0 && coproc_cfg.ccr_functional) {
+		mtctl(coproc_cfg.ccr_functional, 10);  /* 10 == Coprocessor Control Reg */
+
+		/* FWIW, FP rev/model is a more accurate way to determine
+		** CPU type. CPU rev/model has some ambiguous cases.
+		*/
+		cpu_data[cpuid].fp_rev = coproc_cfg.revision;
+		cpu_data[cpuid].fp_model = coproc_cfg.model;
+
+		printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
+			cpuid, coproc_cfg.revision, coproc_cfg.model);
+
+		/*
+		** store status register to stack (hopefully aligned)
+		** and clear the T-bit.
+		*/
+		asm volatile ("fstd    %fr0,8(%sp)");
+
+	} else {
+		printk(KERN_WARNING  "WARNING: No FP CoProcessor?!"
+			" (coproc_cfg.ccr_functional == 0x%lx, expected 0xc0)\n"
+#ifdef __LP64__
+			"Halting Machine - FP required\n"
+#endif
+			, coproc_cfg.ccr_functional);
+#ifdef __LP64__
+		mdelay(100);	/* previous chars get pushed to console */
+		panic("FP CoProc not reported");
+#endif
+	}
+
+	/* FUTURE: Enable Performance Monitor : ccr bit 0x20 */
+
+	return ret;
+}
+
+#ifdef CONFIG_PROC_FS
+/**
+ * get_cpuinfo - Display the processor information for use by procfs.
+ * @buffer: The buffer to hold the processor information.
+ *
+ * This is the callback function for the /proc/cpuinfo  entry in procfs.
+ */
+int get_cpuinfo(char *buffer)
+{
+	char	*p = buffer;
+	int	n;
+
+	for(n=0; n<boot_cpu_data.cpu_count; n++) {
+#ifdef CONFIG_SMP
+		if (0 == cpu_data[n].hpa)
+			continue;
+#ifdef ENTRY_SYS_CPUS
+#error iCOD support wants to show CPU state here
+#endif
+#endif
+		p += sprintf(p, "processor\t: %d\n"
+				"cpu family\t: PA-RISC %s\n",
+				 n, boot_cpu_data.family_name);
+
+		p += sprintf(p, "cpu\t\t: %s\n",  boot_cpu_data.cpu_name );
+
+		/* cpu MHz */
+		p += sprintf(p, "cpu MHz\t\t: %d.%06d\n",
+				 boot_cpu_data.cpu_hz / 1000000,
+				 boot_cpu_data.cpu_hz % 1000000  );
+
+		p += sprintf(p, "model\t\t: %s\n"
+				"model name\t: %s\n",
+				 boot_cpu_data.pdc.sys_model_name,
+				 cpu_data[n].dev ? 
+				 cpu_data[n].dev->name : "Unknown" );
+
+		p += sprintf(p, "hversion\t: 0x%08x\n"
+			        "sversion\t: 0x%08x\n",
+				 boot_cpu_data.hversion,
+				 boot_cpu_data.sversion );
+
+		p += get_cache_info(p);
+		/* print cachesize info ? */
+		p += sprintf(p, "bogomips\t: %lu.%02lu\n",
+			     loops_per_jiffy / (500000 / HZ),
+			     (loops_per_jiffy / (5000 / HZ)) % 100);
+	}
+	return p - buffer;
+}
+#endif
+
+static struct parisc_device_id processor_tbl[] = {
+	{ HPHW_NPROC, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, SVERSION_ANY_ID },
+	{ 0, }
+};
+
+static struct parisc_driver cpu_driver = {
+	name:		"CPU",
+	id_table:	processor_tbl,
+	probe:		processor_probe
+};
+
+/**
+ * processor_init - Processor initalization procedure.
+ *
+ * Register this driver.
+ */
+void __init processor_init(void)
+{
+	register_parisc_driver(&cpu_driver);
+}
--- arch/parisc/kernel/setup.c	2001/08/28 08:08:35	1.89
+++ arch/parisc/kernelsetup.c	2001/09/02 04:36:18
@@ -7,6 +7,7 @@
  *    Modifications copyright 1999 SuSE GmbH (Philipp Rumpf)
  *    Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net>
  *    Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org>
+ *    Modifications copyright 2001 Ryan Bradetich <rbradetich@uswest.net>
  *
  *    Initial PA-RISC Version: 04-23-1999 by Helge Deller
  *
@@ -27,50 +28,28 @@
  */
 
 #include <linux/config.h>
-#include <linux/errno.h>
 #include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/ptrace.h>
-#include <linux/sched.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/user.h>
-#include <linux/tty.h>
-#include <linux/fs.h>
-#include <linux/kdev_t.h>
-#include <linux/major.h>
-#include <linux/string.h>
 #include <linux/blk.h>          /* for initrd_start and initrd_end */
 #include <linux/init.h>
-#include <linux/interrupt.h>
 #include <linux/console.h>
-#include <linux/bootmem.h>
-#include <linux/delay.h>
+#define PCI_DEBUG
 #include <linux/pci.h>
-#include <linux/threads.h>
+#undef PCI_DEBUG
+#include <linux/proc_fs.h>
 
-#include <asm/cache.h>
-#include <asm/hardware.h>	/* for register_parisc_driver() stuff */
 #include <asm/processor.h>
-#include <asm/page.h>
 #include <asm/pdc.h>
 #include <asm/led.h>
-#include <asm/system.h>
 #include <asm/machdep.h>	/* for pa7300lc_init() proto */
 
-#include <asm/irq.h>		/* for struct irq_region */
-
-#include <linux/proc_fs.h>
-
 #define COMMAND_LINE_SIZE 1024
 char	saved_command_line[COMMAND_LINE_SIZE];
 char	command_line[COMMAND_LINE_SIZE];
 
-struct system_cpuinfo_parisc boot_cpu_data;
-struct cpuinfo_parisc cpu_data[NR_CPUS];
+/* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */
+struct proc_dir_entry * proc_runway_root = NULL;
+struct proc_dir_entry * proc_gsc_root = NULL;
 
-static long fallback_cpu_hpa[] __initdata = { 0xfffa0000L, 0xfffbe000L, 0x0 };
 
 /* This has to go somewhere in architecture specific code. */
 
@@ -93,225 +72,6 @@ int EISA_bus;
 ** The code path not shared is how PDC hands control of the CPU to the OS.
 ** The initialization of OS data structures is the same (done below).
 */
-#undef ASSERT
-#define ASSERT(expr) \
-	if(!(expr)) { \
-		printk( "\n" __FILE__ ":%d: Assertion " #expr " failed!\n",__LINE__); \
-		panic(#expr); \
-	}
-
-
-static int __init
-cpu_driver_callback(struct parisc_device *dev)
-{
-	unsigned long txn_addr;
-	unsigned long cpuid;
-	struct cpuinfo_parisc *p;
-
-#ifndef CONFIG_SMP
-	if (boot_cpu_data.cpu_count > 0) {
-		printk(KERN_INFO "CONFIG_SMP=n  ignoring additional CPUs\n");
-		return(1);
-	}
-#endif
-
-#ifdef __LP64__
-	if (is_pdc_pat()) {
-		ulong status;
-		unsigned long bytecnt;
-	        pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
-		struct pdc_pat_cpu_num cpu_info;
-
-		status = pdc_pat_cell_module(&bytecnt, dev->pcell_loc,
-			dev->mod_index, PA_VIEW, &pa_pdc_cell);
-
-		ASSERT(PDC_RET_OK == status);
-
-		/* verify it's the same as what do_pat_inventory() found */
-		ASSERT(dev->mod_info == pa_pdc_cell.mod_info);
-		ASSERT(dev->pmod_loc == pa_pdc_cell.mod_location);
-		ASSERT(dev->mod_path == pa_pdc_cell.mod_path);
-
-		txn_addr = pa_pdc_cell.mod[0];   /* id_eid for IO sapic */
-
-		/* get the cpu number */
-		status = pdc_pat_cpu_get_number(&cpu_info, dev->hpa);
-
-		ASSERT(PDC_RET_OK == status);
-
-		if(cpu_info.cpu_num >= NR_CPUS) {
-			printk(KERN_WARNING "IGNORING CPU at 0x%x,"
-				" cpu_slot_id > NR_CPUS"
-				" (%ld > %d)\n",
-				dev->hpa, cpu_info.cpu_num, NR_CPUS);
-			/* Ignore CPU since it will only crash */
-			boot_cpu_data.cpu_count--;
-			return(1);
-		} else {
-			cpuid = cpu_info.cpu_num;
-		}
-	} else
-#endif
-	{
-		txn_addr = dev->hpa;	/* for legacy PDC */
-
-		/* logical CPU ID and update global counter */
-		cpuid = boot_cpu_data.cpu_count;
-	}
-
-	p = &cpu_data[cpuid];
-	boot_cpu_data.cpu_count++;
-
-	/* initialize counters */
-	memset(p, 0, sizeof(struct cpuinfo_parisc));
-
-	p->dev = dev;		/* Save IODC data in case we need it */
-	p->hpa = dev->hpa;	/* save CPU hpa */
-	p->cpuid = cpuid;	/* save CPU id */
-	p->txn_addr = txn_addr;	/* save CPU hpa */
-
-	/*
-	** CONFIG_SMP: init_smp_config() will attempt to get CPU's into
-	** OS control. RENDEZVOUS is the default state - see mem_set above.
-	**	p->state = STATE_RENDEZVOUS;
-	*/
-
-	/*
-	** itimer and ipi IRQ handlers are statically initialized in
-	** arch/parisc/kernel/irq.c. ie Don't need to register them.
-	*/
-	p->region = irq_region[IRQ_FROM_REGION(CPU_IRQ_REGION)];
-
-	return 0;
-}
-
-
-/* Some versions of IODC don't list the CPU, and since we don't walk
- * the bus yet, we have to probe for processors at well known hpa
- * addresses.
- */
-
-void __init register_fallback_cpu (void)
-{
-	int i = 0;
-
-	printk(KERN_INFO "No CPUs reported by firmware - probing...\n");
-
-	while (fallback_cpu_hpa[i]) {
-		struct parisc_device *dev = alloc_pa_dev(fallback_cpu_hpa[i]);
-		/* Um, where do we free this? */
-
-		if (dev && (HPHW_NPROC == dev->id.hw_type)) {
-			printk(KERN_INFO "Found CPU at %lx\n", fallback_cpu_hpa[i]);
-			register_pa_dev(dev);
-			return;
-		}
-
-		i++;
-	}
-
-	panic ("Don't know where this CPU lives.  System halted.\n");
-	return;
-}
-
-
-/*
- * Get CPU information and store it in the boot_cpu_data structure.  */
-void __init collect_boot_cpu_data(void)
-{
-	memset(&boot_cpu_data,0,sizeof(boot_cpu_data));
-
-	boot_cpu_data.cpu_hz = 100 * PAGE0->mem_10msec; /* Hz of this PARISC */
-
-	/* get CPU-Model Information... */
-#define p ((unsigned long *)&boot_cpu_data.pdc.model)
-	if(pdc_model_info(&boot_cpu_data.pdc.model)==0)
-		printk(KERN_INFO 
-			"model	%08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-			p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8]);
-#undef p
-
-	if(pdc_model_versions(&boot_cpu_data.pdc.versions, 0)==0)
-		printk(KERN_INFO "vers\t%08lx\n", 
-			boot_cpu_data.pdc.versions);
-
-	if(pdc_model_cpuid(&boot_cpu_data.pdc.cpuid)==0)
-		printk(KERN_INFO "cpuid\t%08lx\n",
-			boot_cpu_data.pdc.cpuid);
-
-	printk(KERN_INFO "CPUID\tvers %ld rev %ld\n",
-		(boot_cpu_data.pdc.cpuid >> 5) & 127,
-		boot_cpu_data.pdc.cpuid & 31);
-
-	if (pdc_model_sysmodel(boot_cpu_data.pdc.sys_model_name)==0)
-		printk(KERN_INFO "model\t%s\n",
-			boot_cpu_data.pdc.sys_model_name);
-
-	boot_cpu_data.hversion =  boot_cpu_data.pdc.model.hversion;
-	boot_cpu_data.sversion =  boot_cpu_data.pdc.model.sversion;
-
-	boot_cpu_data.cpu_type =
-			parisc_get_cpu_type(boot_cpu_data.hversion);
-
-	boot_cpu_data.cpu_name = cpu_name_version[boot_cpu_data.cpu_type][0];
-	boot_cpu_data.family_name = cpu_name_version[boot_cpu_data.cpu_type][1];
-}
-
-/*
-** Set width/Enable FP coprocessor
-**
-** REVISIT: this could be done in the "code 22" trap handler.
-** (frowands idea - that way we know which processes need FP
-** registers saved on the interrupt stack.)
-**
-** NEWS FLASH: wide kernels need FP coprocessor enabled to handle
-** formatted printing of %lx for example (double divides I think)
-*/
-static int __init
-init_per_cpu(int cpuid)
-{
-	int ret;
-	struct pdc_coproc_cfg coproc_cfg;
-
-	ret = pdc_coproc_cfg(&coproc_cfg);
-
-	if(ret >= 0 && coproc_cfg.ccr_functional) {
-		mtctl(coproc_cfg.ccr_functional, 10);  /* 10 == Coprocessor Control Reg */
-
-		/* FWIW, FP rev/model is a more accurate way to determine
-		** CPU type. CPU rev/model has some ambiguous cases.
-		*/
-		cpu_data[cpuid].fp_rev = coproc_cfg.revision;
-		cpu_data[cpuid].fp_model = coproc_cfg.model;
-
-		printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
-			cpuid, coproc_cfg.revision, coproc_cfg.model);
-
-		/*
-		** store status register to stack (hopefully aligned)
-		** and clear the T-bit.
-		*/
-		asm volatile ("fstd    %fr0,8(%sp)");
-
-	} else {
-		printk(KERN_WARNING  "WARNING: No FP CoProcessor?!"
-			" (coproc_cfg.ccr_functional == 0x%lx, expected 0xc0)\n"
-#ifdef __LP64__
-			"Halting Machine - FP required\n"
-#endif
-			, coproc_cfg.ccr_functional);
-#ifdef __LP64__
-		mdelay(100);	/* previous chars get pushed to console */
-		panic("FP CoProc not reported");
-#endif
-	}
-
-	/* FUTURE: Enable Performance Monitor : ccr bit 0x20 */
-
-	return(ret);
-}
-
-
 void __init setup_cmdline(char **cmdline_p)
 {
 	extern unsigned int boot_args[];
@@ -363,18 +123,9 @@ void __init dma_ops_init(void)
 	}
 }
 
+extern int init_per_cpu(int cpuid);
+extern void collect_boot_cpu_data(void);
 
-static struct parisc_device_id cpu_tbl[] = {
-	{ HPHW_NPROC, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, SVERSION_ANY_ID },
-	{ 0, }
-};
-
-static struct parisc_driver cpu_driver = {
-	name:		"CPU",
-	id_table:	cpu_tbl,
-	probe:		cpu_driver_callback
-};
-
 void __init setup_arch(char **cmdline_p)
 {
 	init_per_cpu(smp_processor_id());	/* Set Modes & Enable FP */
@@ -403,16 +154,6 @@ void __init setup_arch(char **cmdline_p)
 #endif
 
 	dma_ops_init();
-	do_device_inventory();                  /* probe for hardware */
-	register_parisc_driver(&cpu_driver);	/* claim all the CPUs */
-	if (boot_cpu_data.cpu_count == 0)
-	    register_fallback_cpu();
-
-	printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
-			boot_cpu_data.cpu_count,
-			boot_cpu_data.cpu_name,
-			boot_cpu_data.cpu_hz / 1000000,
-			boot_cpu_data.cpu_hz % 1000000	);
 
 #ifdef CONFIG_VT
 # if defined(CONFIG_STI_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
@@ -422,52 +163,77 @@ void __init setup_arch(char **cmdline_p)
 
 }
 
-#ifdef CONFIG_PROC_FS
-/*
- *	Get CPU information for use by procfs.
- */
-
-int get_cpuinfo(char *buffer)
+static void parisc_proc_mkdir(void)
 {
-	char	*p = buffer;
-	int	n;
-
-	for(n=0; n<boot_cpu_data.cpu_count; n++) {
-#ifdef CONFIG_SMP
-		if (0 == cpu_data[n].hpa)
-			continue;
-#ifdef ENTRY_SYS_CPUS
-#error iCOD support wants to show CPU state here
-#endif
-#endif
-		p += sprintf(p, "processor\t: %d\n"
-				"cpu family\t: PA-RISC %s\n",
-				 n, boot_cpu_data.family_name);
-
-		p += sprintf(p, "cpu\t\t: %s\n",  boot_cpu_data.cpu_name );
-
-		/* cpu MHz */
-		p += sprintf(p, "cpu MHz\t\t: %d.%06d\n",
-				 boot_cpu_data.cpu_hz / 1000000,
-				 boot_cpu_data.cpu_hz % 1000000  );
-
-		p += sprintf(p, "model\t\t: %s\n"
-				"model name\t: %s\n",
-				 boot_cpu_data.pdc.sys_model_name,
-				 cpu_data[n].dev ? 
-				 cpu_data[n].dev->name : "Unknown" );
-
-		p += sprintf(p, "hversion\t: 0x%08x\n"
-			        "sversion\t: 0x%08x\n",
-				 boot_cpu_data.hversion,
-				 boot_cpu_data.sversion );
-
-		p += get_cache_info(p);
-		/* print cachesize info ? */
-		p += sprintf(p, "bogomips\t: %lu.%02lu\n",
-			     loops_per_jiffy / (500000 / HZ),
-			     (loops_per_jiffy / (5000 / HZ)) % 100);
+	/*
+	** Can't call proc_mkdir() until after proc_root_init() has been
+	** called by start_kernel(). In other words, this code can't
+	** live in arch/.../setup.c because start_parisc() calls
+	** start_kernel().
+	*/
+	switch (boot_cpu_data.cpu_type) {
+	case pcxl:
+	case pcxl2:
+		if (NULL == proc_gsc_root)
+		{
+			proc_gsc_root = proc_mkdir("bus/gsc", 0);
+		}
+		break;
+        case pcxt_:
+        case pcxu:
+        case pcxu_:
+        case pcxw:
+        case pcxw_:
+                if (NULL == proc_runway_root)
+                {
+                        proc_runway_root = proc_mkdir("bus/runway", 0);
+                }
+                break;
 	}
-	return p - buffer;
 }
+
+extern void busdevices_init(void);
+extern void processor_init(void);
+extern void ccio_init(void);
+extern void dino_init(void);
+extern void iosapic_init(void);
+extern void lba_init(void);
+extern void sba_init(void);
+
+void __init parisc_init(void)
+{
+	parisc_proc_mkdir();
+	do_device_inventory();                  /* probe for hardware */
+
+	processor_init();
+	printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
+			boot_cpu_data.cpu_count,
+			boot_cpu_data.cpu_name,
+			boot_cpu_data.cpu_hz / 1000000,
+			boot_cpu_data.cpu_hz % 1000000	);
+
+#if defined(CONFIG_IOSAPIC)
+	iosapic_init();
+#endif
+	/* These are in a non-obvious order, will fix when we have an iotree */
+#if defined(CONFIG_PCI_LBA)
+	lba_init();
+#endif
+#if defined(CONFIG_IOMMU_SBA)
+	sba_init();
+#endif
+#if defined(CONFIG_IOMMU_CCIO)
+	ccio_init();
 #endif
+#if defined(CONFIG_GSC_DINO)
+	dino_init();
+#endif
+
+#ifdef CONFIG_GSC_LASI
+	busdevices_init();
+#endif
+
+#ifdef CONFIG_CHASSIS_LCD_LED
+	register_led_regions();	/* register LED port info in procfs */
+#endif
+}
--- drivers/gsc/gsc.c	2001/08/31 06:02:17	1.25
+++ drivers/gsc/gsc.c	2001/09/02 04:36:18
@@ -24,10 +24,6 @@
 #include <asm/irq.h>
 #include <asm/processor.h>	/* for boot_cpu_data */
 
-/* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */
-struct proc_dir_entry * proc_runway_root = NULL;
-struct proc_dir_entry * proc_gsc_root = NULL;
-
 u8 _gsc_readb(void *addr)
 {
 	long flags;
@@ -157,75 +153,4 @@ int gsc_claim_irq(struct gsc_irq *i, int
 	i->irq = irq;
 
 	return irq;
-}
-
-static void parisc_proc_mkdir(void)
-{
-	/*
-	** Can't call proc_mkdir() until after proc_root_init() has been
-	** called by start_kernel(). In other words, this code can't
-	** live in arch/.../setup.c because start_parisc() calls
-	** start_kernel().
-	*/
-	switch (boot_cpu_data.cpu_type) {
-	case pcxl:
-	case pcxl2:
-		if (NULL == proc_gsc_root)
-		{
-			proc_gsc_root = proc_mkdir("bus/gsc", 0);
-		}
-		break;
-        case pcxt_:
-        case pcxu:
-        case pcxu_:
-        case pcxw:
-        case pcxw_:
-                if (NULL == proc_runway_root)
-                {
-                        proc_runway_root = proc_mkdir("bus/runway", 0);
-                }
-                break;
-	}
-}
-
-extern void busdevices_init(void);
-extern void ccio_init(void);
-extern void dino_init(void);
-extern void iosapic_init(void);
-extern void lba_init(void);
-extern void sba_init(void);
-
-void __init gsc_init(void)
-{
-	/* FIXME: Much of the code here needs to move to somewhere more
-	 * appropriate.  But it isn't clear where to have pre-pci post-mm
-	 * initialisation hooks.
-	 */
-
-	parisc_proc_mkdir();
-
-#if defined(CONFIG_IOSAPIC)
-	iosapic_init();
-#endif
-	/* These are in a non-obvious order, will fix when we have an iotree */
-#if defined(CONFIG_PCI_LBA)
-	lba_init();
-#endif
-#if defined(CONFIG_IOMMU_SBA)
-	sba_init();
-#endif
-#if defined(CONFIG_IOMMU_CCIO)
-	ccio_init();
-#endif
-#if defined(CONFIG_GSC_DINO)
-	dino_init();
-#endif
-
-#ifdef CONFIG_GSC_LASI
-	busdevices_init();
-#endif

From - Thu Nov 08 21:19:02 2018
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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: [parisc-linux] Re: Delaying the device inventory detection time
Date: Sun, 2 Sep 2001 00:16:39 -0600 (MDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:12052

Ryan,

Why isn't alloc_bootmem or alloc_bootmem_pages good enough? I already
restructured the boot sequence a while back to allow for that.

The only problem I see with using those routines is that it is a little
harder to free up memory allocated with those routines once the
memory subsystem is fully initialized, but if you are only dynamically
allocating, without a need to free the memory you should be able to
use those routines without having to do any restructuring.

John




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Subject: [parisc-linux] Which CVS modules are still alive?
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I was just wondering which of the following CVS modules (that I have
checked out) are still considered active.

  binutils  gcc  glibc  linux  palo

Obviously 'linux' will be active as long as hppa-linux kernel
development continues outside of the main kernel tree.  I believe glibc
has been mentioned before as being stale?  How about the others?

Cheers,

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




From - Thu Nov 08 21:19:02 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:12054

Well, I watched the number of files in /lost+found grow every time I
had to pull the plug from my HP C200, so I added a 'sync' option in
/etc/fstab and tried to get reiserfs working.

I patched my 2.4.9-pa13 kernel with

endian-safe-reiserfs-for-2.4.8.patch

which went without warnings or errors. A patched
reiserfs-progs-3.x.0k-pre9 also built well (despite what the configure
scripts says, you _need_ automake).

Creating a reiserfs-partition went without a hitch.

running bonnie -s 128 on it did this:

Adding Swap: 1041400k swap-space (priority -1)
eth0: Setting half-duplex based on MII#1 link partner capability of 0021.
reiserfs: checking transaction log (device 08:03) ...
Using r5 hash to sort names
ReiserFS version 3.6.25
bonnie[163]: Unaligned data reference 28

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110
r0-3     00000000 102ec550 10197d0c 26f24838
r4-7     26f24848 27054e40 00000011 00000020
r8-11    0000000a 26f06580 00000020 26f247a0
r12-15   27088d1c ffffffff 26f24838 00000001
r16-19   26f24708 faf02c68 0006a248 26f24852
r20-23   0000000f 00000003 03000000 00000002
r24-27   0000000a 0000000a 26f24848 102d4010
r28-31   26f24848 01000000 26f24b40 10196fc8
sr0-3    00000000 00000004 00000000 00000004
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10197d10 10197d14
 IIR: 0c7c1093    ISR: 00000000  IOR: 26f24846
 ORIG_R28: 00000000
pa8200:/var/log#

After reading in the archives about ksymoops, I looked up this part of
my System.map:

101979e0 T reiserfs_lookup
101979e0 t .L1432
10197ad4 t reiserfs_add_entry
10197e50 t .L1512
10197f28 t .L1510
10198068 T reiserfs_create

objdump -d /boot/linux-2.4.9-pa13 revealed:

10197cbc:       d6 d6 0b 18     depw,z r22,7,8,r22
10197cc0:       d6 b5 0a 10     depw,z r21,15,16,r21
10197cc4:       41 33 01 fe     ldb ff(sr0,r9),r19
10197cc8:       0a d5 02 75     or r21,r22,r21
10197ccc:       d6 94 09 08     depw,z r20,23,24,r20
10197cd0:       0a b4 02 74     or r20,r21,r20
10197cd4:       0a 93 02 73     or r19,r20,r19
10197cd8:       d2 75 18 f8     extrw,u r19,7,8,r21
10197cdc:       d2 74 19 f8     extrw,u r19,15,8,r20
10197ce0:       0c 73 12 16     stb  r19,b(sr0,r3)
10197ce4:       d2 73 1a f8     extrw,u r19,23,8,r19
10197ce8:       0c 75 12 10     stb  r21,8(sr0,r3)
10197cec:       0c 74 12 12     stb  r20,9(sr0,r3)
10197cf0:       e8 86 a9 e4     b,l 102a51e8 <memcpy>,%r2
10197cf4:       0c 73 12 14     stb  r19,a(sr0,r3)
10197cf8:       08 06 02 59     copy r6,r25
10197cfc:       08 04 02 5a     copy r4,r26
10197d00:       d7 20 1c 1d     depwi 0,31,3,r25
10197d04:       e8 0d a5 d8     call 101b1ff8 <padd_item>
10197d08:       08 08 02 58     copy r8,r24
10197d0c:       00 01 0e 74     rsm 1,r20
10197d10:       0c 7c 10 93     ldw  e(sr0,r3),r19
10197d14:       d6 60 1f 1f     depwi 0,7,1,r19
10197d18:       0c 73 12 9c     stw  r19,e(sr0,r3)
10197d1c:       00 14 18 60     mtsm r20
10197d20:       85 e0 26 32     cmpib,=,n 0,r15,10198040 <.L1510+0x118>
10197d24:       00 01 0e 74     rsm 1,r20
10197d28:       0c 7c 10 93     ldw  e(sr0,r3),r19
10197d2c:       d6 7f 1f 5f     depwi -1,5,1,r19
10197d30:       0c 73 12 9c     stw  r19,e(sr0,r3)
10197d34:       00 14 18 60     mtsm r20
10197d38:       08 00 02 54     copy r0,r20
10197d3c:       08 00 02 55     copy r0,r21
10197d40:       37 c6 3e 51     ldo -d8(sp),r6
10197d44:       37 cd 3d c1     ldo -120(sp),r13
10197d48:       6b d4 3e 51     stw r20,-d8(sr0,sp)
10197d4c:       6b d5 3e 59     stw r21,-d4(sr0,sp)
10197d50:       6b d4 3e 61     stw r20,-d0(sr0,sp)
10197d54:       6b d5 3e 69     stw r21,-cc(sr0,sp)
10197d58:       08 0c 02 59     copy r12,r25
10197d5c:       6b c6 3e 01     stw r6,-100(sr0,sp)
10197d60:       6b cd 3f 99     stw r13,-34(sr0,sp)
10197d64:       08 08 02 58     copy r8,r24
10197d68:       08 05 02 5a     copy r5,r26
10197d6c:       eb ff b4 4d     b,l 10197798 <reiserfs_find_entry>,%r2

which makes the error somewhere around here in 
fs/reiserfs/namei.c, function reiserfs_add_entry, after call to
padd_item, before call to reiserfs_find_entry:

    /* copy name */
    memcpy ((char *)(deh + 1), name, namelen);
    /* padd by 0s to the 4 byte boundary */
    padd_item ((char *)(deh + 1), ROUND_UP (namelen), namelen);

    /* entry is ready to be pasted into tree, set 'visibility' and 'stat data in entry' attributes */
    mark_de_without_sd (deh);
    visible ? mark_de_visible (deh) : mark_de_hidden (deh);

    /* find the proper place for the new entry */
    memset (bit_string, 0, sizeof (bit_string));
    de.de_gen_number_bit_string = (char *)bit_string;
    retval = reiserfs_find_entry (dir, name, namelen, &path, &de);


And there I'm stuck. I'm sending this to the parisc-list to document the
failure, and to linux-kernel to reach some reiserfs-experts, perhaps.

I'm willing to test anything!

Good luck,
Jurriaan
-- 
"I have seen her. That is enough, perhaps."
Pug smiled. "You are a rare man."
	Raymond E Feist - The King's Buccaneer
GNU/Linux 2.4.9-ac5 SMP/ReiserFS 2x1402 bogomips load av: 0.04 0.01 0.06




From - Thu Nov 08 21:19:02 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:12055

On Fri, Aug 31, 2001 at 12:06:07PM -0400, James Waterhouse wrote:
> Hello everyone,
> 	I'm seem to be having trouble booting into linux on my 712/60. I hope 
> someone can help. I have built a new kernel (from cvs) and also set up 
> an nfs root. When I try to boot the linux boots up to the point where it 
> says "Cleaning: /tmp/ /var/lock /var/run" and then it just hangs. Any 
> idea what is cause it to hang? Could there be a problem with the nfsroot?

Possible.  What are you using for your nfsroot?  Does it still respond
to pings?  What console are you using?  Do you get a prompt if you
boot with 'init=/bin/sh'?

Richard





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From: "Jacek Artymiak" <workstations@poczta.onet.pl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP 9000/800 F20 serial console cable
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Hi,

I'm trying to connect my Linux box to an HP 9000/900 F20 server's serial
console socket.  The cable I bought doen't seem to work right (I see output,
but nothing I type on the keyboard of my Linux box gets through to the F20).
Could this be the cable, or the terminal settings, or something else?.  Any
pointers to solutions, F20 serial console connector pinout or schematics for
the serial console/rs232 cable will be welcome.  You can contact me
privately, off the list, if you preffer not to pollute parisc-linux.

Jacek Artymiak



-- 

OnetKomunikator - porozumiesz sie
z innymi [ http://ok.onet.pl/instaluj.html ]





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Subject: Re: [parisc-linux] documented Oops running big-endian reiserfs on parisc architecture
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On Sun, Sep 02, 2001 at 10:55:38AM +0200, thunder7@xs4all.nl wrote:
> ReiserFS version 3.6.25
> bonnie[163]: Unaligned data reference 28

As it says, an unaligned data reference.

> r0-3     00000000 102ec550 10197d0c 26f24838

> IASQ: 00000000 00000000 IAOQ: 10197d10 10197d14

In kernel mode.

> 10197d10:       0c 7c 10 93     ldw  e(sr0,r3),r19

r3 is 26f24838, and offset `e' from that is unaligned.

> which makes the error somewhere around here in 
> fs/reiserfs/namei.c, function reiserfs_add_entry, after call to
> padd_item, before call to reiserfs_find_entry:
> 
>     /* copy name */
>     memcpy ((char *)(deh + 1), name, namelen);
>     /* padd by 0s to the 4 byte boundary */
>     padd_item ((char *)(deh + 1), ROUND_UP (namelen), namelen);
> 
>     /* entry is ready to be pasted into tree, set 'visibility' and 'stat data in entry' attributes */
>     mark_de_without_sd (deh);
>     visible ? mark_de_visible (deh) : mark_de_hidden (deh);
> 
>     /* find the proper place for the new entry */
>     memset (bit_string, 0, sizeof (bit_string));
>     de.de_gen_number_bit_string = (char *)bit_string;
>     retval = reiserfs_find_entry (dir, name, namelen, &path, &de);

I suspect mark_de_without_sd is an inlined function/macro and this will
be where the unaligned data reference is happening.

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] clustering tool ??
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Hi there,

Is there a tool I can use to install my systems in my cluster all at once ??
Someone ??


Tia,

John Hagreis





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Quoth John Hagreis:
> Hi there,
> 
> Is there a tool I can use to install my systems in my cluster all at once ??
> Someone ??
> 

FAI (Fully Automatic Installation) could be right for you.  It was
written for just this purpose.

  http://www.informatik.uni-koeln.de/fai/

It's available in packaged form with Debian.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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very small part of my bootup-messages:

5. Raven+ w SE FWSCSI Core Centronics
6. Raven+ w SE FWSCSU Core Audio
7. Raven+ w SE FWSCSI Core PS/2 Port

SCSU?

--- arch/parisc/kernel/hardware.c       Fri Aug 31 12:02:30 2001
+++ arch/parisc/kernel/hardware-new.c   Sun Sep  2 16:18:09 2001
@@ -810,8 +810,8 @@
        {HPHW_FIO, 0x04E, 0x0007B, 0x0, "Kiji L2 132 Core Audio"},
        {HPHW_FIO, 0x050, 0x0007B, 0x0, "Merlin Jr 132 Core Audio"},
        {HPHW_FIO, 0x051, 0x0007B, 0x0, "Firehawk Audio"},
-       {HPHW_FIO, 0x056, 0x0007B, 0x0, "Raven+ w SE FWSCSU Core Audio"},
-       {HPHW_FIO, 0x057, 0x0007B, 0x0, "Raven+ w Diff FWSCSU Core Audio"},
+       {HPHW_FIO, 0x056, 0x0007B, 0x0, "Raven+ w SE FWSCSI Core Audio"},
+       {HPHW_FIO, 0x057, 0x0007B, 0x0, "Raven+ w Diff FWSCSI Core Audio"},
        {HPHW_FIO, 0x058, 0x0007B, 0x0, "FireHawk 200 Audio"},
        {HPHW_FIO, 0x05C, 0x0007B, 0x0, "SummitHawk 230 Core Audio"},
        {HPHW_FIO, 0x800, 0x0007B, 0x0, "Hitachi Tiny 64 Audio"},

Would it be nice to add help-texts to all the different parisc options
that currently have none? I'm trying some contructive messages for a
change :-)

Jurriaan
-- 
Never before have I encountered such corrupt and foul-minded
perversity!   Have you ever considered a career in the Church?
        Black Adder II
GNU/Linux 2.4.9-ac5 SMP/ReiserFS 2x1402 bogomips load av: 0.26 0.26 0.27




From - Thu Nov 08 21:19:03 2018
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From: =?iso-8859-1?Q?Andreas_H=E4rtel?= <andreas@malcolm.in-chemnitz.de>
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Hallp Matthew,

> Kernel: partition 0 file /vmlinux
> Ramdisk: partition 0 file /ramdisk
> Warning: kernel name doesn't end with 32 or 64... Guessing Annoyance:
> Firmware
> does not support PDV_MODEL_CAPABILITIES cell
> 32
>
> ERROR: Read from boot device failed (status = -3).
> byteio_read: seekread() returned -1 expected 2048
>
> ERROR: Read from boot device failed (status = -3).
> byteio_read: seekread() returned -1 expected 2048
> Couldn't grok your kernel executable format
> failed to load kernel
>
> ---snip---

That's very strange.  Can you tcpdump to see what packets are going
across the wire?  It almost looks as if your tftpd died halfway through
the transfer.

I've tried tcpdump, but I can not see any error or the reason for the
problem. Which
filter option must be set on tcpdump? Unfortunately, I have only few
practice with this.

./usr/local/sbin/tcpdump -vv -x -l -i eth0 ip host woody | tee
/home/andreas/dat


Here is the start and end of protocol:

17:50:52.165918 malcolm.bootps > woody.bootpc: xid:0x4137a2a6 Y:woody
S:malcolm [|bootp] (ttl 64, id 36751)
                         4500 0148 8f8f 0000 4011 c8bd c0a8 5001
                         c0a8 5006 0043 0044 0134 5fdb 0201 0600
                         4137 a2a6 0000 0000 0000 0000 c0a8 5006
                         c0a8 5001 0000
17:50:52.505918 woody.8252 > malcolm.tftp: 516 RRQ "/mnt/lifimage" [tos
0x10] (ttl 32, id 16702)
                         4510 0220 413e 0000 2011 3627 c0a8 5006
                         c0a8 5001 203c 0045 020c 1fff 0001 2f6d
                         6e74 2f6c 6966 696d 6167 6500 6f63 7465
                         7400 0000 0000
17:50:52.785918 malcolm.1105 > woody.8252: udp 516 (ttl 64, id 36758)
                         4500 0220 8f96 0000 4011 c7de c0a8 5001
                         c0a8 5006 0451 203c 020c ba1f 0003 0001
                         8000 5041 4c4f 0003 0154 c000 002b 8ad4
                         01b7 0800 001e
17:50:52.785918 woody.8252 > malcolm.1105: udp 4 [tos 0x10] (ttl 32, id
26570)
                         4510 0020 67ca 0000 2011 119b c0a8 5006
                         c0a8 5001 203c 0451 000c b9eb 0004 0001
                         c0a8 5006 202d 4120 2455 5543 505f
17:50:52.815918 malcolm.1105 > woody.8252: udp 516 (ttl 64, id 36760)
                         4500 0220 8f98 0000 4011 c7dc c0a8 5001

.....
.....

17:53:41.625918 woody.47989 > malcolm.1106: udp 4 [tos 0x10] (ttl 32, id
13135)
                         4510 0020 334f 0000 2011 4616 c0a8 5006
                         c0a8 5001 bb75 0452 000c 9eb1 0004 8000
                         c0a8 5006 6053 3f98 2922 b783 d859
17:53:46.625918 malcolm.1106 > woody.47989: udp 516 (ttl 64, id 14281)
                         4500 0220 37c9 0000 4011 1fac c0a8 5001
                         c0a8 5006 0452 bb75 020c 9157 0003 8000
                         01d2 1587 f93e 1ad8 e34a 5b08 abb1 dc02
                         5008 25a4 236a
17:53:46.625918 woody.47989 > malcolm.1106: udp 4 [tos 0x10] (ttl 32, id
1184)
                         4510 0020 04a0 0000 2011 74c5 c0a8 5006
                         c0a8 5001 bb75 0452 000c 9eb1 0004 8000
                         c0a8 5006 6053 3f98 2922 b783 d859
17:53:51.625918 malcolm.1106 > woody.47989: udp 516 (ttl 64, id 14285)
                         4500 0220 37cd 0000 4011 1fa8 c0a8 5001
                         c0a8 5006 0452 bb75 020c 9157 0003 8000
                         01d2 1587 f93e 1ad8 e34a 5b08 abb1 dc02
                         5008 25a4 236a
17:53:51.625918 woody.47989 > malcolm.1106: udp 4 [tos 0x10] (ttl 32, id
52956)
                         4510 0020 cedc 0000 2011 aa88 c0a8 5006
                         c0a8 5001 bb75 0452 000c 9eb1 0004 8000
                         c0a8 5006 6053 3f98 2922 b783 d859

Andreas





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Subject: Re: [parisc-linux] What's a "Trace/breakpoint trap" and why does he crash my system?
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On Sat, Sep 01, 2001 at 08:14:55PM +0100, Matthew Wilcox wrote:
> On Sat, Sep 01, 2001 at 08:32:32PM +0200, thunder7@xs4all.nl wrote:
> > should be 'Trace/breakpoint trap'
> 
> hmm.. what version of glibc do you have installed?  something else you
> can do is run strace -ff which will attempt to follow fork/clone/vfork.
> 
As answered before, 2.2.3-9.

Since this seems to happen with 2.4.9-pa13 and not with 2.4.0 from the
0.9.2 ISO, perhaps I ought to do some checking when exactly it broke.

Can anybody point me to a quick cvs reference, starting with

cd [somewhere]
tar zxvf linux-latest.tar.gz

and then? I'm only interested in extracting certain
kernel-versions (by date?).

Thanks,
Jurriaan
-- 
proof by cumbersome notation:
	Best done with access to at least four alphabets and special
	symbols.
GNU/Linux 2.4.9-ac5 SMP/ReiserFS 2x1402 bogomips load av: 1.34 0.71 0.31




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Subject: [parisc-linux] [SOLVED + PATCH]: documented Oops running big-endian reiserfs on parisc architecture
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On Sun, Sep 02, 2001 at 03:00:23PM +0100, Matthew Wilcox wrote:
> On Sun, Sep 02, 2001 at 10:55:38AM +0200, thunder7@xs4all.nl wrote:
> > ReiserFS version 3.6.25
> > bonnie[163]: Unaligned data reference 28
> 
> > which makes the error somewhere around here in 
> > fs/reiserfs/namei.c, function reiserfs_add_entry, after call to
> > padd_item, before call to reiserfs_find_entry:
> > 
> >     padd_item ((char *)(deh + 1), ROUND_UP (namelen), namelen);
> > 
> >     /* entry is ready to be pasted into tree, set 'visibility' and 'stat data in entry' attributes */
> >     mark_de_without_sd (deh);
> >     visible ? mark_de_visible (deh) : mark_de_hidden (deh);
> > 
> >     /* find the proper place for the new entry */
> >     memset (bit_string, 0, sizeof (bit_string));
> >     de.de_gen_number_bit_string = (char *)bit_string;
> >     retval = reiserfs_find_entry (dir, name, namelen, &path, &de);
> 
> I suspect mark_de_without_sd is an inlined function/macro and this will
> be where the unaligned data reference is happening.
> 
Correct. And the comments just above there about alignment are very
enlightening; it seems that the IBM/S390 architecture has some special
needs, and I just tested that my PA-RISC kernel has the same needs.
Thus I am able to present a real bugfix.

This patch allows me to run bonnie on a reiserfs partition with pa-risc
linux.

--- linux/include/linux/reiserfs_fs.h   Sun Sep  2 21:54:25 2001
+++ linux-new/include/linux/reiserfs_fs.h       Sun Sep  2 20:47:27 2001
@@ -924,7 +924,7 @@
 #define DEH_Visible 2

 /* 64 bit systems (and the S/390) need to be aligned explicitly -jdm */
-#if BITS_PER_LONG == 64 || defined(__s390__)
+#if BITS_PER_LONG == 64 || defined(__s390__) || defined(__hppa__)
 #   define ADDR_UNALIGNED_BITS  (3)
 #endif

This applies to linux-2.4.9-pa13 with
endian-safe-reiserfs-for-2.4.8.patch and to 2.4.9-ac5.

Please apply,
Jurriaan
-- 
It is well to remember, my son, that the entire population of the
universe, with one trifling exception, is composed of others.
        John Andrew Holmes
GNU/Linux 2.4.9-ac5 SMP/ReiserFS 2x1402 bogomips load av: 0.98 0.83 0.37




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Subject: Re: [parisc-linux] Re: Delaying the device inventory detection time
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On Sun, Sep 02, 2001 at 12:16:39AM -0600, John Marvin wrote:
> Why isn't alloc_bootmem or alloc_bootmem_pages good enough? I already
> restructured the boot sequence a while back to allow for that.

I don't see the need to use bootmem for this.  We can manage just fine
without the devices until after kmalloc starts up.

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] Re: [SOLVED + PATCH]: documented Oops running big-endian reiserfs on parisc architecture
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On Sun, Sep 02, 2001 at 07:57:17PM +0200, thunder7@xs4all.nl wrote:
> 
> --- linux/include/linux/reiserfs_fs.h   Sun Sep  2 21:54:25 2001
> +++ linux-new/include/linux/reiserfs_fs.h       Sun Sep  2 20:47:27 2001
> @@ -924,7 +924,7 @@
>  #define DEH_Visible 2
> 
>  /* 64 bit systems (and the S/390) need to be aligned explicitly -jdm */
> -#if BITS_PER_LONG == 64 || defined(__s390__)
> +#if BITS_PER_LONG == 64 || defined(__s390__) || defined(__hppa__)
>  #   define ADDR_UNALIGNED_BITS  (3)
>  #endif

couldn't reiserfs use asm/unaligned.h like anyone else?
Seems at least sparc and mips may need the same treatment.

Bye
Richard




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From: "David S. Miller" <davem@redhat.com>
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Subject: Re: [parisc-linux] documented Oops running big-endian reiserfs on
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   From: Matthew Wilcox <willy@debian.org>
   Date: Sun, 2 Sep 2001 15:00:23 +0100

   On Sun, Sep 02, 2001 at 10:55:38AM +0200, thunder7@xs4all.nl wrote:
   > ReiserFS version 3.6.25
   > bonnie[163]: Unaligned data reference 28
   
   As it says, an unaligned data reference.
   
BTW, you should not be OOPSing on this as unaligned references are
defined as completely normal, especially in the networking.

Is it impossible to handle unaligned access traps properly on
parisc?  If so, well you have some problems...

Later,
David S. Miller
davem@redhat.com




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Subject: [parisc-linux] Re: [SOLVED + PATCH]: documented Oops running big-endian reiserfs
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   From: Richard Zidlicky <Richard.Zidlicky@stud.informatik.uni-erlangen.de>
   Date: Mon, 3 Sep 2001 00:34:37 +0200

   On Sun, Sep 02, 2001 at 07:57:17PM +0200, thunder7@xs4all.nl wrote:
   >  /* 64 bit systems (and the S/390) need to be aligned explicitly -jdm */
   > -#if BITS_PER_LONG == 64 || defined(__s390__)
   > +#if BITS_PER_LONG == 64 || defined(__s390__) || defined(__hppa__)
   >  #   define ADDR_UNALIGNED_BITS  (3)
   >  #endif
   
   couldn't reiserfs use asm/unaligned.h like anyone else?
   Seems at least sparc and mips may need the same treatment.

Sparc will act correctly for unaliagned accesses.

It will trap and run very slowly, but it wont' OOPS and
it will give correct results.

This is actually required behavior, I don't know why parisc
is acting differently.

Later,
David S. Miller
davem@redhat.com




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On Sun, Sep 02, 2001 at 04:04:41PM -0700, David S. Miller wrote:
>    From: Matthew Wilcox <willy@debian.org>
>    Date: Sun, 2 Sep 2001 15:00:23 +0100
> 
>    On Sun, Sep 02, 2001 at 10:55:38AM +0200, thunder7@xs4all.nl wrote:
>    > ReiserFS version 3.6.25
>    > bonnie[163]: Unaligned data reference 28
>    
>    As it says, an unaligned data reference.
>    
> BTW, you should not be OOPSing on this as unaligned references are
> defined as completely normal, especially in the networking.
> 
> Is it impossible to handle unaligned access traps properly on
> parisc?  If so, well you have some problems...

No, we just haven't bothered to implement it yet.  Not many people
use IPX these days.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] documented Oops running big-endian reiserfs on
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   From: Matthew Wilcox <willy@debian.org>
   Date: Mon, 3 Sep 2001 00:25:14 +0100
   
   No, we just haven't bothered to implement it yet.  Not many people
   use IPX these days.
   
IPX is not the only way this can happen.  Normal IPv4 can get
it with some ethernet cards on receive.

Later,
David S. Miller
davem@redhat.com




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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] documented Oops running big-endian reiserfs on parisc architecture
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> > Is it impossible to handle unaligned access traps properly on
> > parisc?  If so, well you have some problems...
> 
> No, we just haven't bothered to implement it yet.  Not many people
> use IPX these days.

You also need unaligned trap fixups for

AX.25, NetROM, LAPB, X.25, Appletalk, PPP, Anything over 802.2LLC, Linus
NFS code for some NFS mount options (although not the -ac NFS code)

Alan




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Subject: Re: [parisc-linux] Re: [SOLVED + PATCH]: documented Oops running big-endian reiserfs
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> It will trap and run very slowly, but it wont' OOPS and
> it will give correct results.
> 
> This is actually required behavior, I don't know why parisc
> is acting differently.

Several of the platforms only have trap fixups for a small subset of operations
that can legitimately occur on things like networking headers. It makes the
recovery code a lot smaller and cleaner.

Alan




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On Sun, Sep 02, 2001 at 04:53:39PM +0800, Andrew Shugg wrote:
> I was just wondering which of the following CVS modules (that I have
> checked out) are still considered active.
> 
>   binutils  gcc  glibc  linux  palo
> 
> Obviously 'linux' will be active as long as hppa-linux kernel
> development continues outside of the main kernel tree.  I believe glibc
> has been mentioned before as being stale?  How about the others?

binutils is long dead.  Use sources.redhat.com CVS, trunk or 2.11 branch,
or one of H.J.'s releases after 2.11.90.0.19.  Don't use any of the 2.11.x
releases, unless you like debugging binutils problems;  They are all
missing some hppa fixes that I found just after each release.  :-(

gcc is a wee bit stale, but should be updated soon.

Alan




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Subject: [parisc-linux] system calls
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How does PA-RISC trap to the OS during syscalls.

x86 uses trapgates and long-jumps, sparc uses traps and MIPs uses jumps.

I'm wondering what the set of instructions are to initiate a system =
call.

-inane

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2614.3500" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>How does PA-RISC trap to the OS during=20
syscalls.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>x86 uses trapgates and long-jumps, =
sparc uses traps=20
and MIPs uses jumps.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I'm wondering what the set of =
instructions are to=20
initiate a system call.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>-inane</FONT></DIV></BODY></HTML>

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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] system calls
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On Mon, Sep 03, 2001 at 05:10:34AM +0100, Admin wrote:
> How does PA-RISC trap to the OS during syscalls.
> 
> x86 uses trapgates and long-jumps, sparc uses traps and MIPs uses jumps.
> 
> I'm wondering what the set of instructions are to initiate a system call.

we use a gateway page in a different space.  Here's glibc's implementation
of syscall:

int
syscall (int sysnum, int arg0, int arg1, int arg2, int arg3, int arg4, int arg5)
{
  long __sys_res;
  {
    register unsigned long __res asm("r28");
    LOAD_ARGS_6(arg0, arg1, arg2, arg3, arg4, arg5)
      asm volatile ("ble  0x100(%%sr2, %%r0)\n\t"
                    "copy %1, %%r20"
                    : "=r" (__res)
                    : "r" (sysnum) ASM_ARGS_6);
    __sys_res = __res;
  }
  if ((unsigned long) __sys_res >= (unsigned long)-4095)
    {
    __set_errno(-__sys_res);
    __sys_res = -1;
  }
  return __sys_res;
}

if you're interested in discussion of what/how/why/etc, there's lots of
material in the mailing list archives going all the way back to 99.

-- 
Revolutions do not require corporate support.




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In-Reply-To: Message from Matthew Wilcox <willy@debian.org> 
   of "Sat, 01 Sep 2001 08:21:00 BST." <20010901082100.J5126@parcelfarce.linux.theplanet.co.uk> 
Xref: news.gmane.org gmane.linux.ports.parisc:12075

Matthew Wilcox wrote:
> 
> I just took a look at /proc/ioports on my j7k (running 2.4.9-pa1) and
> I'm a little confused by what I see:
> 
> willy@jagu:~$ cat /proc/ioports 
> 00000000-00001ffe : LBA PCI I/O Ports
>   00000020-0000003e : pic1
>   000000a0-000000be : pic2
>   000002f8-000002ff : serial(auto)
>   00000378-0000037a : parport0
>   000003f8-000003ff : serial(auto)
>   00000800-000008ff : sym53c8xx
>   00001000-0000107f : tulip

All the built-ins. so far so good.

> 00004000-00004007 : serial(auto)
> 00004100-00004107 : serial(auto)
> 00004200-00004207 : serial(auto)
> 00004300-00004307 : serial(auto)

These are most likely under HBA 2 and they are being registered
w/o using the virtualized IO port space address.

> 00012000-00013ffe : LBA PCI I/O Ports
> 00024000-00025ffe : LBA PCI I/O Ports
> 00038000-00039ffe : LBA PCI I/O Ports
> 0004c000-0004dffe : LBA PCI I/O Ports

These are "virtualized" I/O port space addresses.

> (the only pci card i have in there is a quad-serial card).
> 
> First, why do all the ioport ranges go to ffe?  Surely it should be fff?

Yes.

> If so, we should make this change:
> 
> @@ -1189,8 +1193,7 @@ lba_legacy_resources(struct parisc_devic
>         r->name  = "LBA PCI I/O Ports";
>         r->flags = IORESOURCE_IO;
>         r->start = READ_REG32(pa_dev->hpa + LBA_IOS_BASE) & ~1L;
> -       r->end   = r->start +
> -           (READ_REG32(pa_dev->hpa + LBA_IOS_MASK) ^ (HBA_PORT_SPACE_SIZE - 
>   1)) - 1;
> +       r->end   = r->start + (READ_REG32(pa_dev->hpa + LBA_IOS_MASK) ^ (HBA_
>   PORT_SPACE_SIZE - 1));
>  
>         /* Virtualize the I/O Port space ranges */
>         lba_num = HBA_PORT_BASE(lba_dev->hba.hba_num);

Urgh. please commit.

> And then, what are the four serial entries doing off by themselves?
> Surely these should be underneath one of the elroys?  /proc/pci says
> they're on bus2, so I guess they should be under the 00024000-00025ffe
> range (25fff?  :-).

Yes - as noted above.

>   I think the problem is that the start/end pair
> aren't getting updated in the bus fixup.  In which case, the patch looks
> like this:
> 
> @@ -707,6 +707,7 @@ lba_fixup_bus(struct pci_bus *bus)
>         u16 status;
>  #endif
>         struct lba_device *ldev = LBA_DEV(bus->sysdata);
> +       int lba_portbase = HBA_PORT_BASE(ldev->hba.hba_num);
>  #ifdef __LP64__
>         int i;
>  #endif
> @@ -805,6 +806,9 @@ lba_fixup_bus(struct pci_bus *bus)
>                                 /* "Globalize" PCI address */
>                                 res->start |= ldev->lmmio_base;
>                                 res->end   |= ldev->lmmio_base;
> +                       } else if (res->flags & IORESOURCE_IO) {
> +                               res->start |= lba_portbase;
> +                               res->end   |= lba_portbase;
>                         }
>                 }
>  #endif

I'm wondering how this worked before....
peer-to-peer from elroy 0 to elroy 2?
(ie we are poking elroy 0 to generate the IO cycle and elroy 2 is
picking it up somehow and passin it down it's bus.)

ah..willy just pointed out I used LBA_ASTRO_PORT_BASE (non-postable
IO port space in LMMIO) and that's routed by Astro to the right Elroy.

> comments, please.

I think this change is safe to commit too.
On PAT PDC boxes it will be redundant but harmless.

Trying A500 w/4-port serial card w/ and w/o this change
would be prudent and interesting respectively.

thanks willy!
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: Re: [parisc-linux] documented Oops running big-endian reiserfs on parisc architecture
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Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

> > > Is it impossible to handle unaligned access traps properly on
> > > parisc?  If so, well you have some problems...
> > 
> > No, we just haven't bothered to implement it yet.  Not many people
> > use IPX these days.
> 
> You also need unaligned trap fixups for
> 
> AX.25, NetROM, LAPB, X.25, Appletalk, PPP, Anything over 802.2LLC, Linus
> NFS code for some NFS mount options (although not the -ac NFS code)

And also everybody connected to the internet needs them, because you can 
create arbitarily unaligned TCP/UDP/ICMP headers using IP option byte sized 
NOPs. 

-Andi




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Subject: Re: [parisc-linux] documented Oops running big-endian reiserfs on
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   From: Andi Kleen <ak@suse.de>
   Date: 03 Sep 2001 09:29:12 +0200
   
   And also everybody connected to the internet needs them, because you can 
   create arbitarily unaligned TCP/UDP/ICMP headers using IP option byte sized 
   NOPs. 

IP header length is measured in octets, so how is this possible?
:-)

Later,
David S. Miller
davem@redhat.com




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Subject: Re: [parisc-linux] documented Oops running big-endian reiserfs on parisc architecture
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On Mon, Sep 03, 2001 at 01:15:30AM -0700, David S. Miller wrote:
>    From: Andi Kleen <ak@suse.de>
>    Date: 03 Sep 2001 09:29:12 +0200
>    
>    And also everybody connected to the internet needs them, because you can 
>    create arbitarily unaligned TCP/UDP/ICMP headers using IP option byte sized 
>    NOPs. 
> 
> IP header length is measured in octets, so how is this possible?
> :-)

Sorry that came out wrong. You can in theory generate unaligned IP options this way, but the 
kernel handles this correctly using memcpy. What it doesn't handle is unaligned TCP options
(e.g. timestamps); which you can create using TCP option byte fillers.

Also the 4 byte alignment of the header doesn't help much when the driver didn't cooperate.

-Andi




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From: Arnaud.ATOCH@oecd.org
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First thank you for the port. I'm running a 712/100 with no special trouble
(iso image 0.9.2).

I've got 1 question on the HP Surestore Optical 20xt.

I was using this robot on HP-UX. It is now connected to the 712/100. It is
seen by the SCSI driver and using mtx, I can load, unload, eject opticals
disks.

Using fdisk, I can partition, format (mkfs),and then use blank optical
drives.

I'd like to read all ones created with HP-UX.

I know that sector size of 1024 is no more an issue since 2.2.16 or
something but neither mount or fdsik recognize what's on the drive for HP-UX
written disks.

I've loaded hfs, hpfs, udf, ufs because it was not clear which module
provide HP-UX filesystem support.

Btw does the HP-UX fs support patch made it to Linus tree ?

thanks for any feedback.

Arnaud Atoch
OECD
Paris - France




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From: Hans Reiser <reiser@namesys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: documented Oops running big-endian reiserfs on parisc architecture
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Well, I should have read the next email before saying these patches seemed to be
stable.

Jeff?

Hans

thunder7@xs4all.nl wrote:
> 
> Well, I watched the number of files in /lost+found grow every time I
> had to pull the plug from my HP C200, so I added a 'sync' option in
> /etc/fstab and tried to get reiserfs working.
> 
> I patched my 2.4.9-pa13 kernel with
> 
> endian-safe-reiserfs-for-2.4.8.patch
> 
> which went without warnings or errors. A patched
> reiserfs-progs-3.x.0k-pre9 also built well (despite what the configure
> scripts says, you _need_ automake).
> 
> Creating a reiserfs-partition went without a hitch.
> 
> running bonnie -s 128 on it did this:
> 
> Adding Swap: 1041400k swap-space (priority -1)
> eth0: Setting half-duplex based on MII#1 link partner capability of 0021.
> reiserfs: checking transaction log (device 08:03) ...
> Using r5 hash to sort names
> ReiserFS version 3.6.25
> bonnie[163]: Unaligned data reference 28
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001110
> r0-3     00000000 102ec550 10197d0c 26f24838
> r4-7     26f24848 27054e40 00000011 00000020
> r8-11    0000000a 26f06580 00000020 26f247a0
> r12-15   27088d1c ffffffff 26f24838 00000001
> r16-19   26f24708 faf02c68 0006a248 26f24852
> r20-23   0000000f 00000003 03000000 00000002
> r24-27   0000000a 0000000a 26f24848 102d4010
> r28-31   26f24848 01000000 26f24b40 10196fc8
> sr0-3    00000000 00000004 00000000 00000004
> sr4-7    00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 10197d10 10197d14
>  IIR: 0c7c1093    ISR: 00000000  IOR: 26f24846
>  ORIG_R28: 00000000
> pa8200:/var/log#
> 
> After reading in the archives about ksymoops, I looked up this part of
> my System.map:
> 
> 101979e0 T reiserfs_lookup
> 101979e0 t .L1432
> 10197ad4 t reiserfs_add_entry
> 10197e50 t .L1512
> 10197f28 t .L1510
> 10198068 T reiserfs_create
> 
> objdump -d /boot/linux-2.4.9-pa13 revealed:
> 
> 10197cbc:       d6 d6 0b 18     depw,z r22,7,8,r22
> 10197cc0:       d6 b5 0a 10     depw,z r21,15,16,r21
> 10197cc4:       41 33 01 fe     ldb ff(sr0,r9),r19
> 10197cc8:       0a d5 02 75     or r21,r22,r21
> 10197ccc:       d6 94 09 08     depw,z r20,23,24,r20
> 10197cd0:       0a b4 02 74     or r20,r21,r20
> 10197cd4:       0a 93 02 73     or r19,r20,r19
> 10197cd8:       d2 75 18 f8     extrw,u r19,7,8,r21
> 10197cdc:       d2 74 19 f8     extrw,u r19,15,8,r20
> 10197ce0:       0c 73 12 16     stb  r19,b(sr0,r3)
> 10197ce4:       d2 73 1a f8     extrw,u r19,23,8,r19
> 10197ce8:       0c 75 12 10     stb  r21,8(sr0,r3)
> 10197cec:       0c 74 12 12     stb  r20,9(sr0,r3)
> 10197cf0:       e8 86 a9 e4     b,l 102a51e8 <memcpy>,%r2
> 10197cf4:       0c 73 12 14     stb  r19,a(sr0,r3)
> 10197cf8:       08 06 02 59     copy r6,r25
> 10197cfc:       08 04 02 5a     copy r4,r26
> 10197d00:       d7 20 1c 1d     depwi 0,31,3,r25
> 10197d04:       e8 0d a5 d8     call 101b1ff8 <padd_item>
> 10197d08:       08 08 02 58     copy r8,r24
> 10197d0c:       00 01 0e 74     rsm 1,r20
> 10197d10:       0c 7c 10 93     ldw  e(sr0,r3),r19
> 10197d14:       d6 60 1f 1f     depwi 0,7,1,r19
> 10197d18:       0c 73 12 9c     stw  r19,e(sr0,r3)
> 10197d1c:       00 14 18 60     mtsm r20
> 10197d20:       85 e0 26 32     cmpib,=,n 0,r15,10198040 <.L1510+0x118>
> 10197d24:       00 01 0e 74     rsm 1,r20
> 10197d28:       0c 7c 10 93     ldw  e(sr0,r3),r19
> 10197d2c:       d6 7f 1f 5f     depwi -1,5,1,r19
> 10197d30:       0c 73 12 9c     stw  r19,e(sr0,r3)
> 10197d34:       00 14 18 60     mtsm r20
> 10197d38:       08 00 02 54     copy r0,r20
> 10197d3c:       08 00 02 55     copy r0,r21
> 10197d40:       37 c6 3e 51     ldo -d8(sp),r6
> 10197d44:       37 cd 3d c1     ldo -120(sp),r13
> 10197d48:       6b d4 3e 51     stw r20,-d8(sr0,sp)
> 10197d4c:       6b d5 3e 59     stw r21,-d4(sr0,sp)
> 10197d50:       6b d4 3e 61     stw r20,-d0(sr0,sp)
> 10197d54:       6b d5 3e 69     stw r21,-cc(sr0,sp)
> 10197d58:       08 0c 02 59     copy r12,r25
> 10197d5c:       6b c6 3e 01     stw r6,-100(sr0,sp)
> 10197d60:       6b cd 3f 99     stw r13,-34(sr0,sp)
> 10197d64:       08 08 02 58     copy r8,r24
> 10197d68:       08 05 02 5a     copy r5,r26
> 10197d6c:       eb ff b4 4d     b,l 10197798 <reiserfs_find_entry>,%r2
> 
> which makes the error somewhere around here in
> fs/reiserfs/namei.c, function reiserfs_add_entry, after call to
> padd_item, before call to reiserfs_find_entry:
> 
>     /* copy name */
>     memcpy ((char *)(deh + 1), name, namelen);
>     /* padd by 0s to the 4 byte boundary */
>     padd_item ((char *)(deh + 1), ROUND_UP (namelen), namelen);
> 
>     /* entry is ready to be pasted into tree, set 'visibility' and 'stat data in entry' attributes */
>     mark_de_without_sd (deh);
>     visible ? mark_de_visible (deh) : mark_de_hidden (deh);
> 
>     /* find the proper place for the new entry */
>     memset (bit_string, 0, sizeof (bit_string));
>     de.de_gen_number_bit_string = (char *)bit_string;
>     retval = reiserfs_find_entry (dir, name, namelen, &path, &de);
> 
> And there I'm stuck. I'm sending this to the parisc-list to document the
> failure, and to linux-kernel to reach some reiserfs-experts, perhaps.
> 
> I'm willing to test anything!
> 
> Good luck,
> Jurriaan
> --
> "I have seen her. That is enough, perhaps."
> Pug smiled. "You are a rare man."
>         Raymond E Feist - The King's Buccaneer
> GNU/Linux 2.4.9-ac5 SMP/ReiserFS 2x1402 bogomips load av: 0.04 0.01 0.06
> -
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From - Thu Nov 08 21:19:04 2018
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Subject: [parisc-linux] Re: documented Oops running big-endian reiserfs on parisc architecture
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To: Matthew Wilcox <willy@debian.org>
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On Mon, Sep 03, 2001 at 12:25:14AM +0100, Matthew Wilcox wrote:
> On Sun, Sep 02, 2001 at 04:04:41PM -0700, David S. Miller wrote:
> >    From: Matthew Wilcox <willy@debian.org>
> >    Date: Sun, 2 Sep 2001 15:00:23 +0100
> > 
> >    On Sun, Sep 02, 2001 at 10:55:38AM +0200, thunder7@xs4all.nl wrote:
> >    > ReiserFS version 3.6.25
> >    > bonnie[163]: Unaligned data reference 28
> >    
> >    As it says, an unaligned data reference.
> >    
> > BTW, you should not be OOPSing on this as unaligned references are
> > defined as completely normal, especially in the networking.
> > 
> > Is it impossible to handle unaligned access traps properly on
> > parisc?  If so, well you have some problems...
> 
> No, we just haven't bothered to implement it yet.  Not many people
> use IPX these days.
> 
OK, well this seems to have opened quite a can of worms. Programming the
handling of unaligned access traps on parisc is quite above my
possibilities.

I did notice that mark_de_without_sd() in reiserfs_fs.h just calls the
ext2_{set|clear|test}_bit routines. If the host architecture should
handle that with unaligned addresses, obviously the exception for s390
should also go. The current source would make reiserfs slow on sparc as
well, if I understand correctly.

To solve this for parisc, I see two possibilities:

- rewrite asm/parisc/bitops.h to have the ext2_* routines handle
  unaligned addresses. This would possibly be slowing down all aligned
  access. Not so nice.

- rewrite reiserfs_fs.h to use it's own test/set/clear bit routines.
  This would lose all the optimizations all specific architectures have
  in their asm/*/bitops.h. Also not nice.

Keeping in mind that I don't know any parisc assembly, is there any way
I can help resolve this in an elegant manner?

Greetings,
Jurriaan
-- 
If all else fails, immortality can always be assured by spectacular error.
        John Kenneth Galbraith
GNU/Linux 2.4.9-ac5 SMP/ReiserFS 2x1402 bogomips load av: 0.45 0.12 0.04




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From: Hans Reiser <reiser@namesys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] documented Oops running big-endian reiserfs on parisc 
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Cc: "David S. Miller" <davem@redhat.com>, alan@lxorguk.ukuu.org.uk,
	willy@debian.org, thunder7@xs4all.nl,
	parisc-linux@lists.parisc-linux.org, linux-kernel@vger.kernel.org
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Ok, so the sum of this is that Jeff's patches work on the platforms he wrote
them for, and we need one more fix for PA-RISC.

So, we can reasonably send Jeff's patches to Linus, and test and then put the
PA-RISC patch into the AC tree, any disagreement?

Hans




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From: "Ulrich Weigand" <Ulrich.Weigand@de.ibm.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [SOLVED + PATCH]: documented Oops running big-endian reiserfs on parisc
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Cc: Richard.Zidlicky@stud.informatik.uni-erlangen.de,
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To: "David S. Miller" <davem@redhat.com>
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David Miller wrote:

>   From: Richard Zidlicky
<Richard.Zidlicky@stud.informatik.uni-erlangen.de>
>   Date: Mon, 3 Sep 2001 00:34:37 +0200
>
>   On Sun, Sep 02, 2001 at 07:57:17PM +0200, thunder7@xs4all.nl wrote:
>   >  /* 64 bit systems (and the S/390) need to be aligned explicitly -jdm
*/
>   > -#if BITS_PER_LONG == 64 || defined(__s390__)
>   > +#if BITS_PER_LONG == 64 || defined(__s390__) || defined(__hppa__)
>   >  #   define ADDR_UNALIGNED_BITS  (3)
>   >  #endif
>
>   couldn't reiserfs use asm/unaligned.h like anyone else?
>   Seems at least sparc and mips may need the same treatment.
>
>Sparc will act correctly for unaliagned accesses.
>
>It will trap and run very slowly, but it wont' OOPS and
>it will give correct results.
>
>This is actually required behavior, I don't know why parisc
>is acting differently.

>From what I recall when we were looking into reiserfs on S/390,
the core problem was that reiserfs tried to do *atomic* operations
on non-aligned words.  This isn't supported by the hardware on
S/390 (normal non-aligned accesses just work).

I don't really see how this can be fixed in a trap handler; how
would the handler guarantee atomicity?



Mit freundlichen Gruessen / Best Regards

Ulrich Weigand

--
  Dr. Ulrich Weigand
  Linux for S/390 Design & Development
  IBM Deutschland Entwicklung GmbH, Schoenaicher Str. 220, 71032 Boeblingen
  Phone: +49-7031/16-3727   ---   Email: Ulrich.Weigand@de.ibm.com





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From: Hannu Martikka <martikka@penguin3.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Kernel panics on 715/80
Date: Mon, 3 Sep 2001 17:21:09 +0300 (EEST)
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Hei,

I just downloaded kernel-2.4.9 (linux-20010901.tar.gz) and compiled it
with default configuration (I selected the 7100LC cpu) on my 715/80. I was
successfully running the 2.4.0 kernel from 0.9.2 cd-image.

Any ideas what went wrong?

- Goodi

Booting
palo ipl 0.93 bame@palinux Wed Jul 11 11:08:57 MDT 2001
0/vmlinux32 2853588 bytes @ 0x48000
Partition Start(MB) End(MB) Id Type
1               1      16   f0 Palo
2              17     505   82 swap
3             506    2060   83 ext2

Command line: 'root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102'

Kernel: partition 3 file /boot/vmlinux-2.4.9
ext2 block size 4096
ext2_mount(partition 3) returns 0
ext2_open(/boot/vmlinux-2.4.9) = 3
ELF32 executable
Entry 001000d0 first 00100000 n 4
Segment 0 load 00100000 size 1712516 mediaptr 0x1000
Segment 1 load 002a4000 size 281808 mediaptr 0x1a4000
Segment 2 load 002ec000 size 385024 mediaptr 0x1e9000
Segment 3 load 0037f510 size 88000 mediaptr 0x247510
branching to kernel entry point 0x001000d0

Dumping Stack from 10348000 to 10348980:
8000 00000000 00000000 00000000 00000000 102b6fa0 00000000 00000000
ffffffff
................
8960 00000000 00000000 00000000 10107748 00000000 00000000 00000000
00000000

Kernel Fault: Code=15 regs=10348740 (Addr=2000003c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011000000000000001111
r0-3     00000000 2000003c 1010afd0 1034c76c
r4-7     f0200000 1034c010 00000005 10348628
r8-11    10348609 00000008 0004000e 102ecf94
r12-15   00000000 00000001 00000001 f0000704
r16-19   f000b858 00000002 00000000 00000000
r20-23   00005e00 0000000b 00000010 0000008e
r24-27   00000000 1034c1e0 1034c770 102a4010
r28-31   00000000 102b6810 10348980 f0012870
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 102ee3c4 102ee3b4
 IIR: 0c201093    ISR: 00000000  IOR: 2000003c
 ORIG_R28: 00000000







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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: documented Oops running big-endian reiserfs on parisc architecture
Date: Mon, 3 Sep 2001 15:30:01 +0100
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Cc: thunder7@xs4all.nl, parisc-linux@lists.parisc-linux.org,
	linux-kernel@vger.kernel.org, Jeff Mahoney <jeffm@suse.com>
To: Hans Reiser <reiser@namesys.com>
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On Mon, Sep 03, 2001 at 02:25:39PM +0400, Hans Reiser wrote:
> 
> 
> 
> Well, I should have read the next email before saying these patches seemed to be
> stable.
> 
> Jeff?

you misread the archive, Hans.  This is the original bugreport; once the
alignment was fixed it worked fine.

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] documented Oops running big-endian reiserfs on parisc architecture
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Cc: Andi Kleen <ak@suse.de>, "David S. Miller" <davem@redhat.com>,
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On Mon, Sep 03, 2001 at 02:48:24PM +0400, Hans Reiser wrote:
> Ok, so the sum of this is that Jeff's patches work on the platforms he wrote
> them for, and we need one more fix for PA-RISC.
> 
> So, we can reasonably send Jeff's patches to Linus, and test and then put the
> PA-RISC patch into the AC tree, any disagreement?

If you don't align on sparc, alpha, et al, then it will be slower than
it could be; don't you want to fix that first?

-- 
Revolutions do not require corporate support.




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To: Hannu Martikka <martikka@penguin3.ntc.nokia.com>
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On Mon, Sep 03, 2001 at 05:21:09PM +0300, Hannu Martikka wrote:
> Hei,
> 
> I just downloaded kernel-2.4.9 (linux-20010901.tar.gz) and compiled it
> with default configuration (I selected the 7100LC cpu) on my 715/80. I was
> successfully running the 2.4.0 kernel from 0.9.2 cd-image.
> 
> Any ideas what went wrong?

Nope; two hints.  First, you can look up 102ee3c4 and 1010afd0 in your
System.map -- that'll tell you which function it's in and what function
called it, respectively.  Secondly, you can define EARLY_BOOTUP_DEBUG
in arch/parisc/kernel/pdc_cons.c and recompile.  That'll show where it
dies.  This crash concerns me a little since I tested CVS kernel a couple
of days ago on a 715/80.

>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000011000000000000001111
> r0-3     00000000 2000003c 1010afd0 1034c76c

r2 is the return address -- ie our caller.

> r4-7     f0200000 1034c010 00000005 10348628
> r8-11    10348609 00000008 0004000e 102ecf94
> r12-15   00000000 00000001 00000001 f0000704
> r16-19   f000b858 00000002 00000000 00000000
> r20-23   00005e00 0000000b 00000010 0000008e
> r24-27   00000000 1034c1e0 1034c770 102a4010
> r28-31   00000000 102b6810 10348980 f0012870
> sr0-3    00000000 00000000 00000000 00000000
> sr4-7    00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 102ee3c4 102ee3b4

and IAOQ is the address of the executing instruction and the next
instruction -- interestingly the instruction that faulted is in the
delay slot of a branch.

>  IIR: 0c201093    ISR: 00000000  IOR: 2000003c
>  ORIG_R28: 00000000

-- 
Revolutions do not require corporate support.




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From: =?ISO-8859-1?Q?R=FCdiger?= Scholz <rscholz@hrzpub.tu-darmstadt.de>
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To: Matthew Wilcox <willy@debian.org>
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Matthew Wilcox wrote:

>On Fri, Aug 31, 2001 at 06:56:15AM +0200, Rdiger Scholz wrote:
>
>>When I played a little bit  with the kernel, I found some failures.
>>My machine is a 715/100 with a second  Graphics-Card (Coral SGC). If the 
>>
>
>Could you change kernel/printk.c, line 36 from:
>#define DEFAULT_CONSOLE_LOGLEVEL 7 /* anything MORE serious than KERN_DEBUG */
>to:
>#define DEFAULT_CONSOLE_LOGLEVEL 9 /* anything MORE serious than KERN_DEBUG */
>
>This should print out more debug messages and might help diagnose the problem.
>

Nop. It doesn't print any new messages at booting. It 's difficult to 
debug, because I don't know exactly where the kernel crash,  because 
when it crashs GR02 and IAOQ point to parisc_terminate and show_stack.
But looking at the last messages and the source code, the kernel crashs 
when it's calling "sti_dump_rom" in the file 
linux/drivers/video/sticore.c. The last three lines before the kernel 
crashs are:
SNIP---------       
        sticonsole_init: searching for STI ROMs                        
                         
        STI word mode ROM at f0025000, hpa=f4000000                    
                            <--- this is in function sti_read_rom which 
calls sti_dump_rom
        STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 
8.04           <--- function sti_dump_rom
SNAP--------

And this is the code of function "sti_dump_rom":
SNIP----------
    static void __init
    sti_dump_rom(struct sti_rom *rom)
    {
            printk(KERN_INFO "STI %s mode ROM, id %04x-%04x, conforms to 
spec rev. %d.%02x\n",
                    (rom->type[3] == 1) ? "byte" : "word",
                    rom->graphics_id[0],
                    rom->graphics_id[1],
                    rom->revno[0] >> 4,
                    rom->revno[0] & 0x0f);
            DPRINTK((" supports %d monitors\n", rom->num_mons));
            DPRINTK((" font start %08x\n", rom->font_start));
            DPRINTK((" region list %08x\n", rom->region_list));
            DPRINTK((" init_graph %08x\n", rom->init_graph));
            DPRINTK((" alternate code type %d\n", rom->alt_code_type));
    }
SNAP----------

After the printk("STI word mode..."), I should see messages about 
supported monitors, etc. So here must be the place, where the kernel crashs.


Thanks in advance,

        Rdiger







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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux willy
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On Mon, Sep 03, 2001 at 12:08:37PM -0600, Matthew Wilcox wrote:
> Log message:
> Unlock the lock, not the device!

Index: arch/parisc/kernel/drivers.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/drivers.c,v
retrieving revision 1.22
diff -u -p -r1.22 drivers.c
--- drivers.c   2001/09/01 08:30:49     1.22
+++ drivers.c   2001/09/03 18:08:14
@@ -248,7 +248,7 @@ struct parisc_device *alloc_pa_dev(unsig
 
        num_devices++;
 
-       write_unlock(&pa_dev);
+       write_unlock(&pa_lock);
 
        return dev;
 }

Thanks to Ben Collins for this patch.

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] Re: [SOLVED + PATCH]: documented Oops running big-endian reiserfs on parisc architecture
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On Mon, Sep 03, 2001 at 02:08:43PM +0200, Ulrich Weigand wrote:

> >From what I recall when we were looking into reiserfs on S/390,
> the core problem was that reiserfs tried to do *atomic* operations
> on non-aligned words.  This isn't supported by the hardware on
> S/390 (normal non-aligned accesses just work).
> 
> I don't really see how this can be fixed in a trap handler; how
> would the handler guarantee atomicity?

Spinlocks.  Now that'd so infinitly ugly that I'd rather fix Reiserfs.
It's another proof that reiserfs design was done without too much
consideration of portability so I speculate we'll continue to see such
bugs.

  Ralf




From - Thu Nov 08 21:19:05 2018
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I'd like to find out what kernel started this ominous
'Trace/breakpoint trap' on running 'make mrproper' in my linux-source
directory.

2.4.0 (from the 0.9.2 iso) didn't, 2.4.9-pa13 does.

I've rebrowsed all archives to this list, and I haven't found a good
recipe for 'downgrading' with cvs. I have cvs installed. I have the
recommended .cvsrc from the list. I have a 64 kBaud connection on which
I pay for each minute. I have downloaded linux-20010831.tar.gz, and
untarred it as /home/jurriaan/linux/.

How do I downgrade that linux-tree to say 2.4.5-pa1 or some other
release? I believe this 'Trace/breakpoint trap' thing can be found, and
I have the time to search for it - but how to I get older kernels?

[As an aside: how I would love to have puffin.external.hp not only have
tarballs of the latest kernels, but also day-to-day patchfiles for the
last 2 months or something like that.]

Thanks,
Jurriaan
-- 
Beam me up, Scotty. This planet sucks!
GNU/Linux 2.4.9-ac5 SMP/ReiserFS 2x1402 bogomips load av: 0.00 0.00 0.00




From - Thu Nov 08 21:19:05 2018
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From: rbradetich@uswest.net (Ryan Bradetich)
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Subject: Re: [parisc-linux] Re: Delaying the device inventory detection time
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John,

Willy and I have been looking over the current boot sequence and did not
see any reason why the device detection could not be delayed until main
memory had been setup.  The only special case looked like the cpu driver,
and upon further investigation, all the cpu related information was
gathered via pdc calls.  I remember our converstation about using bootmem
and regulard kmalloc'd memory with a flag to detect which type of memory
was used, but delaying the device detection until memory was initialized
seems like a cleaner solution.   Are there cases where this scheme will
not work?  Like with SMP kernels?  Newer hardware (like superdome), etc?

Thanks for your feedback John, if this patch is not going to work, then
we need to restructure the design of the iotree to not depend upon this
patch!

- Ryan

On Sun, Sep 02, 2001 at 12:16:39AM -0600, John Marvin wrote:
> 
> Ryan,
> 
> Why isn't alloc_bootmem or alloc_bootmem_pages good enough? I already
> restructured the boot sequence a while back to allow for that.
> 
> The only problem I see with using those routines is that it is a little
> harder to free up memory allocated with those routines once the
> memory subsystem is fully initialized, but if you are only dynamically
> allocating, without a need to free the memory you should be able to
> use those routines without having to do any restructuring.
> 
> John
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 

-- 




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Subject: [parisc-linux] Re: [SOLVED + PATCH]: documented Oops running big-endian reiserfs
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   From: "Ulrich Weigand" <Ulrich.Weigand@de.ibm.com>
   Date: Mon, 3 Sep 2001 14:08:43 +0200
   
   >From what I recall when we were looking into reiserfs on S/390,
   the core problem was that reiserfs tried to do *atomic* operations
   on non-aligned words.  This isn't supported by the hardware on
   S/390 (normal non-aligned accesses just work).
   
   I don't really see how this can be fixed in a trap handler; how
   would the handler guarantee atomicity?

Oh thats different!  That won't even work %100 correctly on x86.  On
x86 it will "execute", but it won't be atomic.

Why the F*CK does it need to do this?  It sounds like sloppy
programming to me.

Later,
David S. Miller
davem@redhat.com




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In-Reply-To: Message from "David S. Miller" <davem@redhat.com> 
   of "Mon, 03 Sep 2001 01:15:30 MST." <20010903.011530.62340995.davem@redhat.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:12094

"David S. Miller" <davem@redhat.com> said:
> IP header length is measured in octets, so how is this possible?
> :-)

1 octet == 8 bits in RFC-speak. "Byte" is the name given to character
units.  There were machines around with non-8-bit bytes. AFAIR, DEC PDP-10
had the options of 6, 7, or 8 bits/byte in 36 bit words. Purely historical
now, since (AFAIK) everybody has agreed with IBM (S/360?) that 1 byte == 8
bits. As Brian Reid (IIRC) used to say: "It is spelled 'o-c-t-e-t' and
pronounced 'byte'"
-- 
Horst von Brand                             vonbrand@sleipnir.valparaiso.cl
Casilla 9G, Vin~a del Mar, Chile                               +56 32 672616





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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] UreStoreOptical 20xt
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Xref: news.gmane.org gmane.linux.ports.parisc:12095

Arnaud.ATOCH@oecd.org wrote:
> I've loaded hfs, hpfs, udf, ufs because it was not clear which module
> provide HP-UX filesystem support.

IIRC, should only need hpfs (which also depends on ufs?..dunno anymore)
hfs == Apple's Hiearchial File System.

> Btw does the HP-UX fs support patch made it to Linus tree ?

dunno.  But didn't that patch come from the parisc-linux tree?

Anyway...you might check if those disks are under LVM control.
If so, you'll have to convert those to non-LVM storage using HPUX.
The archives for parisc-linux mailing list have a discussion on HP's
LVM issues.

BTW, You might also try to explicitly specify the hpfs type.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Jeff Mahoney <jeffm@suse.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [SOLVED + PATCH]: documented Oops running big-endian reiserfs on parisc architecture
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On Mon, Sep 03, 2001 at 12:34:37AM +0200, Richard Zidlicky wrote:
> On Sun, Sep 02, 2001 at 07:57:17PM +0200, thunder7@xs4all.nl wrote:
> > 
> > --- linux/include/linux/reiserfs_fs.h   Sun Sep  2 21:54:25 2001
> > +++ linux-new/include/linux/reiserfs_fs.h       Sun Sep  2 20:47:27 2001
> > @@ -924,7 +924,7 @@
> >  #define DEH_Visible 2
> > 
> >  /* 64 bit systems (and the S/390) need to be aligned explicitly -jdm */
> > -#if BITS_PER_LONG == 64 || defined(__s390__)
> > +#if BITS_PER_LONG == 64 || defined(__s390__) || defined(__hppa__)
> >  #   define ADDR_UNALIGNED_BITS  (3)
> >  #endif
> 
> couldn't reiserfs use asm/unaligned.h like anyone else?
> Seems at least sparc and mips may need the same treatment.

    I'll be the first to admit that having the #if followed by arch defines
    really sucks, and that asm/unaligned.h would be much cleaner if for no
    other reason than avoiding an unnecessary gotcha for someone porting a new
    arch.

    Unfortunately, this doesn't appear to work in all cases. I know from
    testing that the S/390 case will fail using the {get,put)_unaligned macros,
    since they are identical to a normal, unassisted assignment.

    I did kick around the idea of making those macros the default accessors for
    the deh_state member (which is the only place they're used), but it unfairly
    penalizes arches that don't need them.

    I'm open to suggestions.

    -Jeff

-- 
Jeff Mahoney           |   "Bill Gates is a monocle and a Persian cat away
jeffm@suse.com         |    from being the villain in a James Bond movie."
jeffm@csh.rit.edu      |                   -- Dennis Miller




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Subject: Re: [parisc-linux] UreStoreOptical 20xt
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On Mon, Sep 03, 2001 at 07:34:20PM -0600, Grant Grundler wrote:
> IIRC, should only need hpfs (which also depends on ufs?..dunno anymore)
> hfs == Apple's Hiearchial File System.

hpfs is IBM's High Performance FileSystem for OS/2 :-)
You need ufs and mount with -ohp, iirc.

> > Btw does the HP-UX fs support patch made it to Linus tree ?
> 
> dunno.  But didn't that patch come from the parisc-linux tree?

Yes, it's in Linus' tree.  We merged that in a loooong time ago.

> Anyway...you might check if those disks are under LVM control.
> If so, you'll have to convert those to non-LVM storage using HPUX.
> The archives for parisc-linux mailing list have a discussion on HP's
> LVM issues.

That's what I assume.  There is now vxfs support in the tree, but nobody's
tried getting it working on HP vxfs volumes.  Volunteers...?

-- 
Revolutions do not require corporate support.




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From: James Waterhouse <james.waterhouse@videotron.ca>
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Hello Richard,

Richard Hirst wrote:

> On Fri, Aug 31, 2001 at 12:06:07PM -0400, James Waterhouse wrote:
> 
>>Hello everyone,
>>	I'm seem to be having trouble booting into linux on my 712/60. I hope 
>>someone can help. I have built a new kernel (from cvs) and also set up 
>>an nfs root. When I try to boot the linux boots up to the point where it 
>>says "Cleaning: /tmp/ /var/lock /var/run" and then it just hangs. Any 
>>idea what is cause it to hang? Could there be a problem with the nfsroot?
>>
> 
> Possible.  What are you using for your nfsroot?


For an nfsroot I'm using the debian base from
ftp://puffin.external.hp.com/pub/parisc/binaries/debian/basetars/base-20010404.tar.gz

> Does it still respond to pings?


Yes it still responds to pings.

> What console are you using?


I don't know... (do you mean sti or serial? if so then I think it is sti 
... whatever is default the config)

> Do you get a prompt if you boot with 'init=/bin/sh'?


How do I do that?

James


> 
> Richard
> 
> 
> 






From - Thu Nov 08 21:19:05 2018
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From: Arnaud.ATOCH@oecd.org
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Subject: RE: [parisc-linux] UreStoreOptical 20xt
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Ok, thanks for coming back .

I've learn a lot and here are my conclusions :

- hpfs is OS/2 specific.
- The HP-UX fs patch came from parisc tree and did it into Linus tree
(2.4.8).
- HP-UX fs support in in the ufs module.
- Correct syntaxe for mount an HP-UX fs under Linux is : mount -t ufs -o
ufstype=hp /dev/sda /mnt/opti
- LVM fs are not so easy to handle and for now no success.

So the HP Surestore Optical 20xt is fully functionnal under Linux parisc or
x86.

Again thanks for you excellent work.

Arnaud Atoch
OECD
Paris - France

-----Original Message-----
From: Grant Grundler [mailto:grundler@puffin.external.hp.com]
Sent: Tuesday, September 04, 2001 3:34 AM
To: Arnaud.ATOCH@oecd.org
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] UreStoreOptical 20xt 


Arnaud.ATOCH@oecd.org wrote:
> I've loaded hfs, hpfs, udf, ufs because it was not clear which module
> provide HP-UX filesystem support.

IIRC, should only need hpfs (which also depends on ufs?..dunno anymore)
hfs == Apple's Hiearchial File System.

> Btw does the HP-UX fs support patch made it to Linus tree ?

dunno.  But didn't that patch come from the parisc-linux tree?

Anyway...you might check if those disks are under LVM control.
If so, you'll have to convert those to non-LVM storage using HPUX.
The archives for parisc-linux mailing list have a discussion on HP's
LVM issues.

BTW, You might also try to explicitly specify the hpfs type.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] documented Oops running big-endian reiserfs on parisc architecture
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> > Is it impossible to handle unaligned access traps properly on
> > parisc?  If so, well you have some problems...
> 
> No, we just haven't bothered to implement it yet.  Not many people
> use IPX these days.

It should be easy to handle kernel unalignment traps in
parisc/kernel/unaligned.c like we currently do for userspace (in fact
there already is some code to do this). I thought we didn't want to do
this though?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] UreStoreOptical 20xt
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To: Matthew Wilcox <willy@debian.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:12101

Matthew Wilcox wrote:
> On Mon, Sep 03, 2001 at 07:34:20PM -0600, Grant Grundler wrote:
> > IIRC, should only need hpfs (which also depends on ufs?..dunno anymore)
> > hfs == Apple's Hiearchial File System.
> 
> hpfs is IBM's High Performance FileSystem for OS/2 :-)
> You need ufs and mount with -ohp, iirc.

oops...thanks for the correction and -ohp is right:

grundler <520>fgrep -i hp fs/ufs/*
fgrep: fs/ufs/CVS: Is a directory
fs/ufs/super.c: * HP/UX hfs filesystem support added by
fs/ufs/super.c:                 else if (!strcmp (value, "hp"))
fs/ufs/super.c:                         ufs_set_opt (*mount_options, UFSTYPE_HP);
...
fs/ufs/super.c:                 printk(KERN_INFO "ufstype=hp is supported read-only\n");


BUG: Documentation/filesystems/ufs.txt doesn't mention -ohp

> There is now vxfs support in the tree, but nobody's
> tried getting it working on HP vxfs volumes.  Volunteers...?

Ooh..it's possible those optical disks ended up using vxfs too...
and CONFIG option says that's RO support too.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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Subject: [parisc-linux] PA-RISC assembly
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Hello. I am wondering what the equivalent of
jmp and call are in PA-RISC assembly.  If there
are any documents on the internet specifying 
PA-RISC assembly I would be very grateful.

__________________________________________________
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Hi, I've got a C180 and a 715 that I'm trying to install linux on.  The
C180 has various issues that I belive are being worked on, so I moved on
to the 715.  On the 715 I get errors allong the lines of:
Writing inode tables: done                            
Writing superblocks and filesystem accounting information: done
# 
# # EXT2-fs error (device sd(8,2)): ext2_readdir: bad entry in directory
#2: rec_len % 4 != 0 - offset=0, inode=1701996660, rec_len5

This happens every time I try and mount a partition.  Is the 715 scsi
unsupported as well?
	Nick






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asdfsdf sdfsdf wrote:
> Hello. I am wondering what the equivalent of
> jmp and call are in PA-RISC assembly.  If there
> are any documents on the internet specifying 
> PA-RISC assembly I would be very grateful.

Start by searching www.parisc-linux.org and docs.hp.com.
Then grab the parisc-linux kernel source and look for *.S files
in the arch/parisc directory to find some real examples.

grant




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From: Andre Konopka <andre.konopka@presse-data.de>
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Subject: [parisc-linux] awkward question: How can I burn the iso image with WinOnCD
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Hi,

yes I know my question is something off topic...

Yesterday I downloaded the ISO image and now I stand there and doesn't
know how to get the stuff on a CD.

Is anybody out there who burned the CD-Image with WinOnCD?


Thanks 

amdre.konopka@presse-data.de




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On Mon, 3 Sep 2001, ext Matthew Wilcox wrote:

> On Mon, Sep 03, 2001 at 05:21:09PM +0300, Hannu Martikka wrote:
> > Hei,
> >
> > I just downloaded kernel-2.4.9 (linux-20010901.tar.gz) and compiled it
> > with default configuration (I selected the 7100LC cpu) on my 715/80. I was
> > successfully running the 2.4.0 kernel from 0.9.2 cd-image.
> >
> > Any ideas what went wrong?
>
> Nope; two hints.  First, you can look up 102ee3c4 and 1010afd0 in your
> System.map -- that'll tell you which function it's in and what function
> called it, respectively.  Secondly, you can define EARLY_BOOTUP_DEBUG
> in arch/parisc/kernel/pdc_cons.c and recompile.  That'll show where it
> dies.  This crash concerns me a little since I tested CVS kernel a couple
> of days ago on a 715/80.

Sorry it took so long to do further debugging... Anyway the System.map
says:

102ee3a0 ? parisc_hardware_description
1010ae98 T alloc_pa_dev

I do have an extra card (X25-card as far as I can remember) on expansion
slot. I recompiled the kernel with the "EARLY_BOOTUP_DEBUG" and here are
the results:

...
ext2_mount(partition 3) returns 0
ext2_open(/boot/vmlinux-2.4.9) = 3
ELF32 executable
Entry 001000d0 first 00100000 n 4
Segment 0 load 00100000 size 1712560 mediaptr 0x1000
Segment 1 load 002a4000 size 281808 mediaptr 0x1a4000
Segment 2 load 002ec000 size 385024 mediaptr 0x1e9000
Segment 3 load 0037f510 size 88000 mediaptr 0x247510
branching to kernel entry point 0x001000d0
Linux version 2.4.9-pa13 (root@linox04) (gcc version 3.0.2 20010825
(Debian prerelease)) #1 Tue Sep 4 18:46:12 EEST 2001
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: Older Legacy Box
model   00006190 00000481 00000000 00000000 7804f0a4 00000000 00000004
00000072 00000072
vers    0000000b
CPUID   vers 0 rev 0
model   9000/715
Total Memory: 256 Mb
On node 0 totalpages: 65536
zone(0): 65536 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Searching for devices...

Dumping Stack from 10348000 to 10348980:
8000 00000000 00000000 00000000 00000000 102b6fa0 00000000 00000000
ffffffff
....

Kernel Fault: Code=15 regs=10348740 (Addr=2000003c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011000000000000001111
r0-3     00000000 2000003c 1010afd0 1034c76c
r4-7     f0200000 1034c010 00000005 10348628
r8-11    10348609 00000008 0004000e 102ecf94
r12-15   00000000 00000001 00000001 f0000704
r16-19   f000b858 00000002 00000000 00000000
r20-23   00005e00 0000000b 00000010 0000008e
r24-27   00000000 1034c1e0 1034c770 102a4010
r28-31   00000000 00000000 10348980 f0012870
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 102ee3c4 102ee3b4
 IIR: 0c201093    ISR: 00000000  IOR: 2000003c
 ORIG_R28: 00000000


- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,







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From: John Marvin <jsm@udlkern.fc.hp.com>
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> Sorry it took so long to do further debugging... Anyway the System.map
> says:
>
> 102ee3a0 ? parisc_hardware_description
> 1010ae98 T alloc_pa_dev
>

Oops. I found this bug last week, but forgot to commit a patch for it.
I just did that.

John




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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
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Subject: [parisc-linux] Thomas Marteau kbd patch adapted.
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Dear all,

I just adapt the patch keyboard of Thomas taking account of kernel update,
reports of experiences of Richard.
I can only test it against 2.4.9-pa14 (cvs update) and seems to work as
well as with 712 as with b180 model
(unplug, replug: ok with hp kbd; Caps lock do not hang the "system")

In the hope to be helpful,
     Joel

PS: I do just add some initial variable value to avoid compile warning. I
do not yet find the way the avoid the last (sorry I have not enough C
writing experience)

(See attached file: hp_psaux.patch)

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--0__=C1256ABE0044855E8f9e8a93df938690918cC1256ABE0044855E
Content-type: application/octet-stream; 
	name="hp_psaux.patch"
Content-Disposition: attachment; filename="hp_psaux.patch"
Content-transfer-encoding: base64

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--0__=C1256ABE0044855E8f9e8a93df938690918cC1256ABE0044855E--





From - Thu Nov 08 21:19:06 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] installing linux on HP systems
Date: Wed, 5 Sep 2001 14:00:53 +0100
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Approved: news@gmane.org
Message-ID: <20010905140052.J11744@linuxcare.com>
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Cc: parisc-linux@lists.parisc-linux.org
To: nick@snowman.net
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Wed Sep  5 07:00:12 2001
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	for <parisc-linux@lists.parisc-linux.org>; Wed,  5 Sep 2001 07:00:12 -0600 (MDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:12109

On Wed, Sep 05, 2001 at 01:18:19AM -0400, nick@snowman.net wrote:
> Hi, I've got a C180 and a 715 that I'm trying to install linux on.  The
> C180 has various issues that I belive are being worked on, so I moved on
> to the 715.  On the 715 I get errors allong the lines of:
> Writing inode tables: done                            
> Writing superblocks and filesystem accounting information: done
> # 
> # # EXT2-fs error (device sd(8,2)): ext2_readdir: bad entry in directory
> #2: rec_len % 4 != 0 - offset=0, inode=1701996660, rec_len5
> 
> This happens every time I try and mount a partition.  Is the 715 scsi
> unsupported as well?

715 scsi is supported, and works for many people.  Sorry, I don't know
what might be causing your problem.

Richard





From - Thu Nov 08 21:19:06 2018
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X-Mozilla-Keys:                                                                                 
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From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Thomas Marteau kbd patch adapted.(2)
Date: Wed, 5 Sep 2001 15:30:03 +0200
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Cc: parisc-linux@lists.parisc-linux.org, debian-hppa@lists.debian.org
To: marteaut@esiee.fr, rhirst@linuxcare.com, willy@debian.org
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Sorry for previous unreadable patch text.
Here is what I hope to be clearer.

--- hp_psaux.c.orig Tue Aug 28 12:02:32 2001
+++ hp_psaux.c Wed Sep  5 10:51:44 2001
@@ -43,6 +43,7 @@

 /* HP specific LASI PS/2 keyboard and psaux constants */
 #define  AUX_REPLY_ACK  0xFA /* Command byte ACK. */
+#define  AUX_RESEND     0xFE /* Sent by the keyb. Asking for resending the
last command. */
 #define  AUX_RECONNECT  0xAA /* scancode when ps2 device is plugged (back)
in */

 #define  LASI_PSAUX_OFFSET 0x0100 /* offset from keyboard to psaux port */
@@ -71,8 +72,7 @@
 #define LASI_STAT_CLKSHD 0x80

 static unsigned long lasikbd_hpa;
-static unsigned long lasips2_hpa;
-
+static int cmd_status;

 static inline u8 read_input(unsigned long hpa)
 {
@@ -106,9 +106,10 @@
          }
     }

+#if 0
     if (wait)
          printk(KERN_DEBUG "Lasi PS/2 wait %d\n", wait);
-
+#endif
     gsc_writeb(val, hpa+LASI_XMTDATA);

     return 1;
@@ -123,14 +124,28 @@

 static void lasikbd_leds(unsigned char leds)
 {
-    write_output(KBD_CMD_SET_LEDS, lasikbd_hpa);
-    write_output(leds, lasikbd_hpa);
-    write_output(KBD_CMD_ENABLE, lasikbd_hpa);
+       cmd_status=2;
+       while (cmd_status!=0) {
+               write_output(KBD_CMD_SET_LEDS, lasikbd_hpa);
+               mdelay(5);
+       }
+
+       cmd_status=2;
+       while (cmd_status!=0) {
+               write_output(leds, lasikbd_hpa);
+               mdelay(5);
+       }
+
+       cmd_status=2;
+       while (cmd_status!=0) {
+          write_output(KBD_CMD_ENABLE, lasikbd_hpa);
+          mdelay(5);
+       }
 }

 #if 0
 /* this might become useful again at some point.  not now  -prumpf */
-int lasi_ps2_test(void *hpa)
+int lasi_ps2_test(unsigned long hpa)
 {
     u8 control,c;
     int i, ret = 0;
@@ -155,10 +170,56 @@
 }
 #endif

-static int __init lasi_ps2_reset(unsigned long hpa, int id)
+static int init_keyb(unsigned long hpa)
+{
+       int fail;
+       u8 data=0;
+
+
+       do {
+               while ((read_status(hpa) & LASI_STAT_TBNE));
+               gsc_writeb(KBD_CMD_SET_LEDS, hpa+LASI_XMTDATA);
+
+               while (!(read_status(hpa) & LASI_STAT_RBNE));
+
+               while ((read_status(hpa) & LASI_STAT_RBNE))
data=read_input(hpa);
+       }while(data!=AUX_REPLY_ACK);
+
+       fail=0;
+
+       do {
+               while ((read_status(hpa) & LASI_STAT_TBNE));
+               gsc_writeb(0x00, hpa+LASI_XMTDATA);
+
+               while (!(read_status(hpa) & LASI_STAT_RBNE));
+
+               while ((read_status(hpa) & LASI_STAT_RBNE)) {
+                       data=read_input(hpa);
+                       fail++;
+                       if(fail==10) break;
+               }
+       }while(data!=AUX_REPLY_ACK);
+
+       fail=0;
+       do {
+               while ((read_status(hpa) & LASI_STAT_TBNE));
+               gsc_writeb(KBD_CMD_ENABLE, hpa+LASI_XMTDATA);
+
+               while (!(read_status(hpa) & LASI_STAT_RBNE));
+               while ((read_status(hpa) & LASI_STAT_RBNE)) {
+                       data=read_input(hpa);
+                       fail++;
+                       if(fail==10) break;
+               }
+
+       }while(data!=AUX_REPLY_ACK);
+
+       return 1;
+}
+
+static void __init lasi_ps2_reset(unsigned long hpa)
 {
     u8 control;
-    int ret = 1;

     /* reset the interface */
     gsc_writeb(0xff, hpa+LASI_RESET);
@@ -167,22 +228,6 @@
     /* enable it */
     control = read_control(hpa);
     write_control(control | LASI_CTRL_ENBL, hpa);
-
-        /* initializes the leds at the default state */
-        if (id==0) {
-           write_output(KBD_CMD_SET_LEDS, hpa);
-       write_output(0, hpa);
-       ret = write_output(KBD_CMD_ENABLE, hpa);
-    }
-
-    return ret;
-}
-
-static int inited;
-
-static void lasi_ps2_init_hw(void)
-{
-    ++inited;
 }


@@ -363,7 +408,7 @@
     lock_kernel();
     fasync_aux(-1, file, 0);
     if (--aux_count) {
-       unlock_kernel();
+         unlock_kernel();
          return 0;
     }
     unlock_kernel();
@@ -399,62 +444,60 @@
         id = gsc_readb(hpa+LASI_ID) & 0x0f;

         if (id==1)
-           hpa -= LASI_PSAUX_OFFSET;
-        lasikbd_hpa = hpa;
-
+         hpa -= LASI_PSAUX_OFFSET;

         status_keyb = read_status(hpa);
         status_mouse = read_status(hpa+LASI_PSAUX_OFFSET);

         while ((status_keyb|status_mouse) & LASI_STAT_RBNE){

-           while (status_keyb & LASI_STAT_RBNE) {
+         while (status_keyb & LASI_STAT_RBNE) {

-              scancode = read_input(hpa);
+         scancode = read_input(hpa);

-          /* XXX don't know if this is a valid fix, but filtering
-           * 0xfa avoids 'unknown scancode' errors on, eg, capslock
-           * on some keyboards.
-           */
-          if (inited && scancode != 0xfa)
-          handle_at_scancode(scancode);
+               /* XXX don't know if this is a valid fix, but filtering
+                * 0xfa avoids 'unknown scancode' errors on, eg, capslock
+                * on some keyboards.
+                */
+
+         if (scancode == AUX_REPLY_ACK)
+              cmd_status=0;
+
+         else if (scancode == AUX_RESEND)
+              cmd_status=1;
+         else
+              handle_at_scancode(scancode);

-          status_keyb =read_status(hpa);
-           }
+         status_keyb =read_status(hpa);
+         }

 #ifdef CONFIG_PSMOUSE
-           while (status_mouse & LASI_STAT_RBNE) {
-          scancode = read_input(hpa+LASI_PSAUX_OFFSET);
-          handle_mouse_scancode(scancode);
-              status_mouse = read_status(hpa+LASI_PSAUX_OFFSET);
-       }
-           status_mouse = read_status(hpa+LASI_PSAUX_OFFSET);
+         while (status_mouse & LASI_STAT_RBNE) {
+              scancode = read_input(hpa+LASI_PSAUX_OFFSET);
+              handle_mouse_scancode(scancode);
+              status_mouse = read_status(hpa+LASI_PSAUX_OFFSET);
+         }
+         status_mouse = read_status(hpa+LASI_PSAUX_OFFSET);
 #endif /* CONFIG_PSMOUSE */
-           status_keyb = read_status(hpa);
+         status_keyb = read_status(hpa);
         }

         tasklet_schedule(&keyboard_tasklet);
         return (status_keyb|status_mouse);
 }

-
-
-
 extern struct pt_regs *kbd_pt_regs;

 static void lasikbd_interrupt(int irq, void *dev, struct pt_regs *regs)
 {
-    lasips2_hpa = (unsigned long) dev; /* save "hpa" for lasikbd_leds() */
     kbd_pt_regs = regs;
-    handle_lasikbd_event(lasips2_hpa);
+    handle_lasikbd_event(dev);
 }

-
 extern int pckbd_translate(unsigned char, unsigned char *, char);

 static struct kbd_ops gsc_ps2_kbd_ops = {
     translate:     pckbd_translate,
-    init_hw:  lasi_ps2_init_hw,
     leds:          lasikbd_leds,
 #ifdef CONFIG_MAGIC_SYSRQ
     sysrq_key:     0x54,
@@ -468,7 +511,7 @@
     unsigned long hpa = dev->hpa;
     unsigned int irq;
     char *name;
-    int device_found;
+    int device_found=0;
     u8 id;

     id = gsc_readb(hpa+LASI_ID) & 0x0f;
@@ -488,20 +531,10 @@
     }

     /* reset the PS/2 port */
-    device_found = lasi_ps2_reset(hpa,id);
-
-    /* allocate the irq and memory region for that device */
-    if (!(irq = busdevice_alloc_irq(dev)))
-         return -ENODEV;
-
-    if (request_irq(irq, lasikbd_interrupt, 0, name, (void *)hpa))
-         return -ENODEV;
-
-    if (!request_mem_region(hpa, LASI_STATUS + 4, name))
-         return -ENODEV;
-
+    lasi_ps2_reset(hpa);
     switch (id) {
     case 0:
+         device_found = init_keyb(hpa);
          register_kbd_ops(&gsc_ps2_kbd_ops);
          break;
     case 1:
@@ -527,6 +560,17 @@
 #endif
     } /* of case */

+        /* allocate the irq and memory region for that device */
+    if (!(irq = busdevice_alloc_irq(dev)))
+         return -ENODEV;
+
+    if (request_irq(irq, lasikbd_interrupt, 0, name, (void *)hpa))
+         return -ENODEV;
+
+    if (!request_mem_region((unsigned long)hpa, LASI_STATUS + 4, name))
+         return -ENODEV;
+
+
     printk(KERN_INFO "PS/2 %s port at 0x%08lx (irq %d) found, "
                "%sdevice attached.\n",
               name, hpa, irq, device_found ? "":"no ");



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From - Thu Nov 08 21:19:06 2018
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Subject: [parisc-linux] cvs update gives 'move away ....' on every file
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Xref: news.gmane.org gmane.linux.ports.parisc:12111

- downloaded the linux-latest.tar.gz archive
- created /home/cvs/parisc and made sure I had enough permissions
- untarred the linux-latest.tar.gz archive there, creating
  /home/cvs/parisc/linux
- installed cvs
- made sure there's a variable CVSROOT in my environment, value:
  ":pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc" (without
  the " of course)
- created ~/.cvsrc, containing:
cvs -z3 -q
diff -uNp
update -Pd
rm -f
- typed 'cd /home/cvs/parisc; cvs update'

result:

jurriaan@pa8200:/home/cvs/parisc$ cvs update -A
cvs update: move away linux/.cvsignore; it is in the way
C linux/.cvsignore
cvs update: move away linux/COPYING; it is in the way
C linux/COPYING
cvs update: move away linux/CREDITS; it is in the way
C linux/CREDITS
cvs [update aborted]: received interrupt signal

and so on. Comments on www.google.com and various mailin-lists seem to
indicate this is often a server-error. I can't really believe that,
since it seems to work for everyone else.

I retried it with linux-20010830.tar.gz, and the same messages were
printed.

What am I doing wrong?

Thanks,
Jurriaan
-- 
Cool is one thing, but you're frozen solid.
	Startrek DS9: Vic Fontaine to Odo.
GNU/Linux 2.4.9-ac7 SMP/ReiserFS 2x1402 bogomips load av: 0.03 0.03 0.02




From - Thu Nov 08 21:19:06 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] Re: Thomas Marteau kbd patch adapted.(2)
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Cc: marteaut@esiee.fr, rhirst@linuxcare.com, willy@debian.org,
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Xref: news.gmane.org gmane.linux.ports.parisc:12112

Hi joel.  Ryan reports his C180 hangs with thomas' patch forward-ported,
so I'm reluctant to commit this.

-- 
Revolutions do not require corporate support.




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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: Re: [parisc-linux] installing linux on HP systems
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Xref: news.gmane.org gmane.linux.ports.parisc:12113

> > Hi, I've got a C180 and a 715 that I'm trying to install linux on.  The
> > C180 has various issues that I belive are being worked on, so I moved on
> > to the 715.  On the 715 I get errors allong the lines of:
> > Writing inode tables: done                            
> > Writing superblocks and filesystem accounting information: done
> > # 
> > # # EXT2-fs error (device sd(8,2)): ext2_readdir: bad entry in directory
> > #2: rec_len % 4 != 0 - offset=0, inode=1701996660, rec_len5
> > 
> > This happens every time I try and mount a partition.  Is the 715 scsi
> > unsupported as well?
> 
> 715 scsi is supported, and works for many people.  Sorry, I don't know
> what might be causing your problem.
> 
> Richard


We generally insert scsi-wrangling-magic as kernel parameters:

sim700=noneg:0xff,nodisc:0xff

And it works beautifully after that.

Cheers,
Carlos.




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On Wed, Sep 05, 2001 at 01:18:19AM -0400, nick@snowman.net wrote:
> Writing inode tables: done                            
> Writing superblocks and filesystem accounting information: done
> # 
> # # EXT2-fs error (device sd(8,2)): ext2_readdir: bad entry in directory
> #2: rec_len % 4 != 0 - offset=0, inode=1701996660, rec_len5
> 
> This happens every time I try and mount a partition.  Is the 715 scsi
> unsupported as well?

What version of e2fsprogs do you have installed?

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] Re: Thomas Marteau kbd patch adapted.(2)
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To: "Matthew Wilcox <willy" <willy%debian.org%SMTP%EUROPAY@mastercard.com>
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Well understand.
(Sorry I could not test it on this model)

Joel



                                                                           =
                                       =20
                    Matthew                                                =
                                       =20
                    Wilcox               To:     Jo=EBl Soete/BRU/MASTERCAR=
D@MASTERCARD                             =20
                    <willy@debian        cc:     marteaut@esiee.fr@SMTP@EUR=
OPAY,                                  =20
                    .org>                rhirst@linuxcare.com@SMTP@EUROPAY,=
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                                         parisc-linux@lists.parisc-linux.or=
g@SMTP@EUROPAY,                        =20
                    05-09-01             debian-hppa@lists.debian.org@SMTP@=
EUROPAY                                =20
                    03:54 PM             Subject:     Re: Thomas Marteau kb=
d patch adapted.(2)                    =20
                                                                           =
                                       =20
                                                                           =
                                       =20




Hi joel.  Ryan reports his C180 hangs with thomas' patch forward-ported,
so I'm reluctant to commit this.

--
Revolutions do not require corporate support.





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Re: Thomas Marteau kbd patch adapted.(2)
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On Wed, Sep 05, 2001 at 02:54:29PM +0100, Matthew Wilcox wrote:
> 
> Hi joel.  Ryan reports his C180 hangs with thomas' patch forward-ported,
> so I'm reluctant to commit this.

The version I have hangs if there is a ps/2 port with no keyboard attached,
which is what causes Ryans problem.  Don't know whether Joel has addressed
that or not.  Thomas should have a fix for it, but I don't know when he
is around again.  I've been resisting doing anything on the k/b driver
on the assumption that Thomas will be back some time soon...

There are other problems; '\' on my UK k/b doesn't work (between left-shift
and 'Z'), for example.

Richard





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On Wed, Sep 05, 2001 at 10:19:37AM -0400, Carlos O'Donell Jr. wrote:
> > > Hi, I've got a C180 and a 715 that I'm trying to install linux on.  The
> > > C180 has various issues that I belive are being worked on, so I moved on
> > > to the 715.  On the 715 I get errors allong the lines of:
> > > Writing inode tables: done                            
> > > Writing superblocks and filesystem accounting information: done
> > > # 
> > > # # EXT2-fs error (device sd(8,2)): ext2_readdir: bad entry in directory
> > > #2: rec_len % 4 != 0 - offset=0, inode=1701996660, rec_len5
> > > 
> > > This happens every time I try and mount a partition.  Is the 715 scsi
> > > unsupported as well?
> > 
> > 715 scsi is supported, and works for many people.  Sorry, I don't know
> > what might be causing your problem.
> > 
> > Richard
> 
> 
> We generally insert scsi-wrangling-magic as kernel parameters:
> 
> sim700=noneg:0xff,nodisc:0xff
> 
> And it works beautifully after that.

Ah, yes, I'd forgotten about that issue.  That is potentially needed if
you have more than one device active on the bus, at least.

Thanks,
 Richard





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From: marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] Re: Thomas Marteau kbd patch adapted.(2)
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Hi all,                                                               
                                                                      
            I am back to school. I am installing a logical analyzer   
for the keyboard. Since then, I have a lot of work but I think that  I
will make better progress knowing what is going on from the point of  
view of the wires. Anyway, I thought that on every hppa boxes you need
to have a PS2 kbd attached for the firmware test at the boot. But, I  
have chanced this to handle this situation.                           
                                                                      
Sorry for the delay, Thomas                                           
ESIEE Team                                                            




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I am useing the debian narrow kernel, along with the attached ramdisk.  I
can check on the versions it contains.
	Nick

On Wed, 5 Sep 2001, Matthew Wilcox wrote:

> On Wed, Sep 05, 2001 at 01:18:19AM -0400, nick@snowman.net wrote:
> > Writing inode tables: done                            
> > Writing superblocks and filesystem accounting information: done
> > # 
> > # # EXT2-fs error (device sd(8,2)): ext2_readdir: bad entry in directory
> > #2: rec_len % 4 != 0 - offset=0, inode=1701996660, rec_len5
> > 
> > This happens every time I try and mount a partition.  Is the 715 scsi
> > unsupported as well?
> 
> What version of e2fsprogs do you have installed?
> 
> -- 
> Revolutions do not require corporate support.
> 





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I only have one device connected (a single 1gig scsi disk), which appeared
to work fine in HP-UX.  Are there any debugging options I could/should
enable?
	Nick

On Wed, 5 Sep 2001, Richard Hirst wrote:

> On Wed, Sep 05, 2001 at 10:19:37AM -0400, Carlos O'Donell Jr. wrote:
> > > > Hi, I've got a C180 and a 715 that I'm trying to install linux on.  The
> > > > C180 has various issues that I belive are being worked on, so I moved on
> > > > to the 715.  On the 715 I get errors allong the lines of:
> > > > Writing inode tables: done                            
> > > > Writing superblocks and filesystem accounting information: done
> > > > # 
> > > > # # EXT2-fs error (device sd(8,2)): ext2_readdir: bad entry in directory
> > > > #2: rec_len % 4 != 0 - offset=0, inode=1701996660, rec_len5
> > > > 
> > > > This happens every time I try and mount a partition.  Is the 715 scsi
> > > > unsupported as well?
> > > 
> > > 715 scsi is supported, and works for many people.  Sorry, I don't know
> > > what might be causing your problem.
> > > 
> > > Richard
> > 
> > 
> > We generally insert scsi-wrangling-magic as kernel parameters:
> > 
> > sim700=noneg:0xff,nodisc:0xff
> > 
> > And it works beautifully after that.
> 
> Ah, yes, I'd forgotten about that issue.  That is potentially needed if
> you have more than one device active on the bus, at least.
> 
> Thanks,
>  Richard
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 





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Subject: [parisc-linux] Re: What's a "Trace/breakpoint trap" and why does he crash my system?
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On Sat, Sep 01, 2001 at 09:28:35PM +0200, thunder7@xs4all.nl wrote:
> On Sat, Sep 01, 2001 at 08:14:55PM +0100, Matthew Wilcox wrote:
> > On Sat, Sep 01, 2001 at 08:32:32PM +0200, thunder7@xs4all.nl wrote:
> > > should be 'Trace/breakpoint trap'
> > 
> > hmm.. what version of glibc do you have installed?  something else you
> > can do is run strace -ff which will attempt to follow fork/clone/vfork.
> > 
> 2.2.3-9. 2.2.4 is out, I know.
> 
> strace -ff:
> 
<snip strace output>

one strance thing is that it will run correctly under gdb (the 5.0-4
version off the 0.9.2 iso).

Without gdb, it always prints
Trace/breakpoint trap

and no other output. The C200 then hangs, 90% of the time even the
power-switch doesn't work. I'm getting some sort of yoga-training just
trying to reach behind it for the power-cord :-)

Since I don't know how to get earlier kernels (it doesn't work in
2.4.9-pa13, it works with 2.4.0 from the 0.9.2 iso) I can't do anything
else than whine about it again. Sorry about that.

Jurriaan
-- 
HORROR FILM WISDOM:
3. Do not search the basement, especially when the power has just gone out.
GNU/Linux 2.4.9-ac7 SMP/ReiserFS 2x1402 bogomips load av: 0.34 0.22 0.16




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Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

hi,

I implemented SNDCTL_DSP_CHANNELS in harmony.c, which is used to query
or set the number of sound channels. This allows some sound apps to run
that used to quit with an error.

I also added SNDCTL_DSP_SYNC that only returns 0 at the moment. This is
needed since neary all sound apps call this during initialization.

The sound driver however is still broken, the only program I know that
works 100% correctly is xmms. Maybe I will do some bug fixing later if
anyone is interested.

PS: is there a working patch to get keyboard running again on 712, it is
broken for months (since kernels after 2.4.0-paXX)

bye
   andi


--------------06DE913B762D92F32A78B84E
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 name="harmony.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="harmony.patch"

--- harmony.c	2001/08/19 15:21:11	1.13
+++ harmony.c	2001/09/05 23:07:13
@@ -680,6 +680,24 @@
 		harmony_set_rate(harmony_detect_rate(ival));
 		return put_user(ival, (int*) arg);
 
+	case SNDCTL_DSP_CHANNELS:
+		if (get_user(ival, (int *) arg))
+			return -EFAULT;
+		
+		if (ival > 0) {
+			if (ival == 1)
+				harmony_set_stereo(HARMONY_SS_MONO);
+			else
+				harmony_set_stereo(HARMONY_SS_STEREO);													
+		}
+
+		if (harmony.stereo_select == HARMONY_SS_STEREO)
+			ival = 2;
+		else
+			ival = 1;
+
+		return put_user(ival, (int *) arg);			
+			
 	case SNDCTL_DSP_STEREO:		/* _SIOWR('P', 3, int) */
 		if (get_user(ival, (int *) arg))
 			return -EFAULT;
@@ -693,6 +711,9 @@
 		return put_user(ival, (int *) arg);
 		
 	case SNDCTL_DSP_RESET:
+		return 0;
+	
+	case SNDCTL_DSP_SYNC:
 		return 0;
 
 	case SNDCTL_DSP_SETFMT:		/* _SIOWR('P',5, int) */

--------------06DE913B762D92F32A78B84E--





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From: Andi <andi@fischlustig.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] harmony specs?
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hi,

I started to improve the pa-risc harmony driver. Now I am stuck since I
dont have the specifications for that chip, can you help me with any
documents or document sources?

andi






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From: Andi <andi@fischlustig.de>
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Subject: Re: [parisc-linux] [PATCH] harmony audio driver
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> The sound driver however is still broken, the only program I know that
> works 100% correctly is xmms.

I just found out that mpg123 runs and sounds perfectly now(now you should
merge the patch in ;-) )

PS: to compile mpg123 you can type make linux-ppc, it works.







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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: [parisc-linux] CVS Uptodate
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Parisc'ers,

Just a quick question, I was wondering which CVS bits are
up to date?

- gcc (Yes)
- binutils (Someone recently said they were stale)
- linux (Yes)
- palo (Yes)
- glibc (No, debian pool has latest source)

I guess the debian pool would have the latest source for
everything?

Cheers,
Carlos.




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"Carlos O'Donell Jr." writes...

> Just a quick question, I was wondering which CVS bits are
> up to date?
> 
> - gcc (Yes)
> - binutils (Someone recently said they were stale)
> - linux (Yes)
> - palo (Yes)
> - glibc (No, debian pool has latest source)

These are all correct. Use uptream for binutils(or the Debian package works 
too). I might rename binutils and glibc to make it clear that they're not 
being kept up to date.

> I guess the debian pool would have the latest source for
> everything?

Unless you have a good reason to use pehc cvs, use the Debian packages for 
everything.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] cvs update gives 'move away ....' on every file
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Xref: news.gmane.org gmane.linux.ports.parisc:12127

thunder7@xs4all.nl wrote:
> - downloaded the linux-latest.tar.gz archive
> - created /home/cvs/parisc and made sure I had enough permissions

You can call this directory anything you want.
I have my linux source trees under /linux/pa64/linux.

...
> - typed 'cd /home/cvs/parisc; cvs update'

You didn't name the CVS repository to use and cvs got confused.

Try 'cd /home/cvs/parisc/linux; cvs update -APd'
Or  'cd /home/cvs/parisc; cvs update -APd linux'

I prefer "pwd" be the source tree I want updated from the repository.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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From: Andrew Shugg <andrew@neep.com.au>
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Quoth Grant Grundler:
> You didn't name the CVS repository to use and cvs got confused.
> 
> Try 'cd /home/cvs/parisc/linux; cvs update -APd'
> Or  'cd /home/cvs/parisc; cvs update -APd linux'

... with "-d:pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc"
in there too, or your current environment's $CVSROOT set accordingly.

The -q and -z3 flags are good too, to avoid unnecessary chatter and to
compress the data stream a bit.  Avoid the temptation to crank up to -z9
as this just puts the server on its back for minimal gain.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] harmony specs?
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Andi wrote:
> hi,
> 
> I started to improve the pa-risc harmony driver. Now I am stuck since I
> dont have the specifications for that chip, can you help me with any
> documents or document sources?

Try the LASI ERS on parisc-linux.org website.
Seems chapter 8 describes Harmony.

grant




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On Thu, Sep 06, 2001 at 01:18:37PM +0800, Andrew Shugg wrote:
> Quoth Grant Grundler:
> > You didn't name the CVS repository to use and cvs got confused.
> > 
> > Try 'cd /home/cvs/parisc/linux; cvs update -APd'
> > Or  'cd /home/cvs/parisc; cvs update -APd linux'
> 
> ... with "-d:pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc"
> in there too, or your current environment's $CVSROOT set accordingly.
> 
> The -q and -z3 flags are good too, to avoid unnecessary chatter and to
> compress the data stream a bit.  Avoid the temptation to crank up to -z9
> as this just puts the server on its back for minimal gain.
> 
So this shouldn't happen:

jurriaan@pa8200:/home/cvs/parisc$ tar zxf ~/source/linux-20010831.tar.gz
jurriaan@pa8200:/home/cvs/parisc$ echo $CVSROOT
:pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc
jurriaan@pa8200:/home/cvs/parisc$ cvs update -APd linux
cvs update: move away linux/.cvsignore; it is in the way
C linux/.cvsignore
cvs update: move away linux/COPYING; it is in the way
C linux/COPYING
cvs update: move away linux/CREDITS; it is in the way
C linux/CREDITS
cvs [update aborted]: received interrupt signal
jurriaan@pa8200:/home/cvs/parisc$

Unfortunately, I see it both with linux-20010830.tar gz and with
linux-20010831.tar.gz

Jurriaan
-- 
GNU/Linux 2.4.9-ac7 SMP/ReiserFS 2x1402 bogomips load av: 0.00 0.00 0.00




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thunder7@xs4all.nl wrote:
> So this shouldn't happen:
> 
> jurriaan@pa8200:/home/cvs/parisc$ tar zxf ~/source/linux-20010831.tar.gz
> jurriaan@pa8200:/home/cvs/parisc$ echo $CVSROOT
> :pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc
> jurriaan@pa8200:/home/cvs/parisc$ cvs update -APd linux
> cvs update: move away linux/.cvsignore; it is in the way
> C linux/.cvsignore

Sorry. It doesn't happen to me.

I get the following:
grundler <518>cvs update -APd linux
cvs update: in directory linux:
cvs update: ignoring CVS/Root because it specifies a non-existent repository /home/cvs/parisc
...
ad nauseum for every CVS/Root file in the tree.

One needs to:
1) echo $CVSROOT > ~/Root
2) find linux -name Root -exec cp ~/Root \{\} \;

(CVSROOT is the ":pserver:..." value posted several times earlier.)

I'm not sure who owns the script that make tarballs from cvs source trees.
But adding those two steps would take care of this for most people.


Now I get:
grundler <523>cvs update -APd linux
P linux/Makefile
P linux/arch/parisc/kernel/hardware.c
grundler <524>pwd
/home/grundler
grundler <525>cat ~/.cvsrc
cvs -z3 -q
diff -uNp
update -Pd
rm -f
grundler <526>head -4 linux/Makefile
VERSION = 2
PATCHLEVEL = 4
SUBLEVEL = 9
EXTRAVERSION = -pa15
grundler <527>echo $CVSROOT
:pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc
grundler <528>


I already forgot I don't need to specify "-Pd" options
on the command line... :^)

grant




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> PS: to compile mpg123 you can type make linux-ppc, it works.

I think I fixed this last week in the debian-source (which should be upstream now),
so "make linux-hppa" should work too.




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> One needs to:
> 1) echo $CVSROOT > ~/Root
> 2) find linux -name Root -exec cp ~/Root \{\} \;
> 
> (CVSROOT is the ":pserver:..." value posted several times earlier.)

easier is: for i in `find linux -name Root`; do echo $CVSROOT > $i; done

> I'm not sure who owns the script that make tarballs from cvs source trees.

Alex deVries...

> grundler <525>cat ~/.cvsrc
> cvs -z3 -q
> diff -uNp
> update -Pd
> rm -f

you're not using the most uptodate cvsrc... i fubar the last line, needs to be
`remove', not `rm'.

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] Trace/Breakpoint trap - results with #define DEBUG_SIG 1
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After setting #define DEBUG_SIG to 1 in arch/parisc/kernel/signal.c, I
see the following messages in /var/log/messages just before the crash:

usp: 0xbff02488 stack bff022a0returning to 0x40106c5f
in sys_rt_sigreturn:
Sep  6 22:03:52 pa8200 kernel: do_signal(oldset=0x00000000, regs=0x2ef78258, sr7 0x21c, pending 1, in_syscall=1
Sep  6 22:03:52 pa8200 kernel: do_signal: oldsedo_signal(oldset=0x00000000, regs=0x2efd0258, sr7 0x229, pending 1, in_syscall=1
t 00000000:00000do_signal: oldset 00000000:00000000
000
Sep  6 22:0do_signal: signr=18, pid=159
3:52 pa8200 kernsa_handler is 40dae
el: do_signal: sERESTARTSYS: putting -EINTR
ignr=18, pid=160handle_signal(sig=18, ka=2efd41d4, info=2efd0508, oldset=2efd0444, regs=2efd0258)

Sep  6 22:03:5setup_rt_frame 1: frame bff02598 info 2efd0508
2 pa8200 kernel:setup_sigcontext: iaoq 0x40106c5f/0x40106c5f
 sa_handler is 9setup_sigcontext: r28 is -4
abda
Sep  6 22:flushing 64 bytes at space 0x229 offset bff02598
03:52 pa8200 kermaking sigreturn frame: 0xbff02598 + 0x280 = 0xbff02818
nel: handle_signSIG deliver (make:159): frame=0xbff02598 sp=0xbff02818 iaoq=0x185ff/0x18603 rp=0xbff02598
al(sig=18, ka=2edo_signal(oldset=0x00000000, regs=0x2efd0258, sr7 0x229, pending 1, in_syscall=0
do_signal: oldset 00020000:00000000
do_signal: signr=5, pid=159
sa_handler is 0
do_signal(oldset=0x00000000, regs=0x100bc258, sr7 0x1f5, pending 1, in_syscall=1
do_signal: oldset 00000000:00000000
do_signal: signr=18, pid=1
sa_handler is 280f6
ERESTARTNOHAND: returning -EINTR
handle_signal(sig=18, ka=2fefae14, info=100bc508, oldset=100bc444, regs=100bc258)
setup_rt_frame 1: frame faf00940 info 100bc508
setup_sigcontext: iaoq 0x4010e4b7/0x4010e4b7
setup_sigcontext: r28 is -4
flushing 64 bytes at space 0x1f5 offset faf00940
making sigreturn frame: 0xfaf00940 + 0x280 = 0xfaf00bc0
SIG deliver (init:1): frame=0xfaf00940 sp=0xfaf00bc0 iaoq=0x400b7f47/0x400b7f4b rp=0xfaf00940
in sys_rt_sigreturn, frame is faf00940
restore_sigcontext: r28 is -4
usp: 0xfaf00bc0 stack faf009d8returning to 0x4010e4b7
in sys_rt_sigreturn:
do_signal(oldset=0x00000000, regs=0x2f108258, sr7 0x212, pending 1, in_syscall=1
do_signal: oldset 00000000:00000000
do_signal: signr=18, pid=154
sa_handler is 9abda
handle_signal(sig=18, ka=2fefb694, info=2f108508, oldset=2f108444, regs=2f108258)
setup_rt_frame 1: frame bff00680 info 2f108508
setup_sigcontext: iaoq 0x401397b3/0x401397b3
setup_sigcontext: r28 is 0
flushing 64 bytes at space 0x212 offset bff00680
making sigreturn frame: 0xbff00680 + 0x280 = 0xbff00900
SIG deliver (bash:154): frame=0xbff00680 sp=0xbff00900 iaoq=0x4017cbfb/0x4017cbff rp=0xbff00680
in sys_rt_sigreturn, frame is bff00680
restore_sigcontext: r28 is 0
usp: 0xbff00900 stack bff00718returning to 0x401397b3
in sys_rt_sigreturn:

Is there anything obviously wrong? Would more output be needed?

Greetings,
Jurriaan
-- 
We carry in our hearts the true country
And that cannot be stolen
We follow in the steps of our ancestry
And that cannot be broken
   Midnight Oil - The dead heart.
GNU/Linux 2.4.9-ac7 SMP/ReiserFS 2x1402 bogomips load av: 6.86 4.43 2.05




From - Thu Nov 08 21:19:08 2018
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From: Galen Arnold <arnoldg@ncsa.uiuc.edu>
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Subject: [parisc-linux] smp kernel hangs during boot on L2000...
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I've built the latest kernel (downloaded this morning) and am trying to
boot it on an L2000 with smp supported (64 bit also).

The kernel hangs immediately and the last line printed is:

	branching to kernel entry point 0x00100000

Has anyone got an SMP kernel running on their L2000, and if so, could you
send me your .config and palo.conf for comparison?

-Galen Arnold

-- 
+
Galen Arnold, system engineer--systems group       arnoldg@ncsa.uiuc.edu
National Center for Supercomputing Applications           (217) 244-3473
152 Computer Applications Bldg., 605 E. Spfld. Ave., Champaign, IL 61820





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Subject: Re: [parisc-linux] smp kernel hangs during boot on L2000...
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On Thu, Sep 06, 2001 at 02:02:20PM -0500, Galen Arnold wrote:
> 
> I've built the latest kernel (downloaded this morning) and am trying to
> boot it on an L2000 with smp supported (64 bit also).
> 
> The kernel hangs immediately and the last line printed is:
> 
> 	branching to kernel entry point 0x00100000

I suggest you edit arch/parisc/kernel/pdc_cons.c and turn #undef
EARLY_DEBUG into #define EARLY_DEBUG; this should let you see where the
crash occurs.

-- 
Revolutions do not require corporate support.




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On Thu, Sep 06, 2001 at 01:53:27PM +0100, Matthew Wilcox wrote:
> > One needs to:
> > 1) echo $CVSROOT > ~/Root
> > 2) find linux -name Root -exec cp ~/Root \{\} \;
> > 
> > (CVSROOT is the ":pserver:..." value posted several times earlier.)
> 
> easier is: for i in `find linux -name Root`; do echo $CVSROOT > $i; done
> 
> you're not using the most uptodate cvsrc... i fubar the last line, needs to be
> `remove', not `rm'.
> 
Thanks everyone, now it works. Is there interest in a short (20 lines)
document describing the steps, starting with the download of
linux-latest.tar.gz - 'how to get cvs running without stress' ?

Thanks,
Jurriaan
-- 
Now I will kill you until you die from it.
	Hot Shots II
GNU/Linux 2.4.9-ac7 SMP/ReiserFS 2x1402 bogomips load av: 0.00 0.00 0.12




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From: Galen Arnold <arnoldg@ncsa.uiuc.edu>
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Subject: Re: [parisc-linux] smp kernel hangs during boot on L2000...
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Matthew,

Thanks for the tip.  My L2000 box is hanging here with the smp 64bit
kernel I've built:

CPU(s): 2 x PA8600 (PCX-W+) at 540.000000 MHz
Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
Console: colour dummy device 160x64
Initialized PDC Console for debu
                                ^^^^^hangs right there...

-Galen

-- 
+
Galen Arnold, system engineer--systems group       arnoldg@ncsa.uiuc.edu
National Center for Supercomputing Applications           (217) 244-3473
152 Computer Applications Bldg., 605 E. Spfld. Ave., Champaign, IL 61820





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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] cvs update gives 'move away ....' on every file
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Quoth thunder7@xs4all.nl:
> Thanks everyone, now it works. Is there interest in a short (20 lines)
> document describing the steps, starting with the download of
> linux-latest.tar.gz - 'how to get cvs running without stress' ?

Certainly wouldn't hurt, the website could suffer an update ...  =)

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




From - Thu Nov 08 21:19:08 2018
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Subject: [parisc-linux] 2.4.9-pa16: Trace/breakpoint trap on 'make mrproper' still occurs, but doesn't hang the machine
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Running the 2.4.9-pa16 kernel, I still get the 'Trace/breakpoint' trap
every time I run 'make mrproper' in my linux source directory.

One very significant difference w.r.t. 2.4.9-pa13 is that it doesn't
crash the machine anymore. Running it under gdb works fine. Running
it under strace produces an endless list of

sg_sigreturn(0) = 0

(about 547 lines or so)

and then a SIGILL (Illegal Instruction) trap.

I'm not at my machine at the moment, so the strace output is from 
memory.

It looks like this patch:
>Date: Thu, 6 Sep 2001 03:48:16 -0600 (MDT)
>From: John Marvin jsm@udlkern.fc.hp.com
>Subject: [parisc-linux-cvs] Patch for SMP support, etc.>
>A rather large patch that includes my current SMP support changes, plus
>a variety of other fixes/changes.

did something. But it's so large I'm not sure what exactly :-)

Jurriaan






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On Wed, Sep 05, 2001 at 02:16:14PM -0400, nick@snowman.net wrote:
> I only have one device connected (a single 1gig scsi disk), which appeared
> to work fine in HP-UX.  Are there any debugging options I could/should
> enable?

So you are installing from the network I guess (cdrom would be a second
device).  You should try the scsi-wrangling-magic as Carlos suggests,
just in case.

Richard

> > On Wed, Sep 05, 2001 at 10:19:37AM -0400, Carlos O'Donell Jr. wrote:
> > > We generally insert scsi-wrangling-magic as kernel parameters:
> > > 
> > > sim700=noneg:0xff,nodisc:0xff
> > > 
> > > And it works beautifully after that.




From - Thu Nov 08 21:19:08 2018
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From: Galen Arnold <arnoldg@ncsa.uiuc.edu>
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Subject: [parisc-linux] Re: smp kernel hangs during boot on L2000 ... (fwd)
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---------- Forwarded message ----------
Date: Fri, 7 Sep 2001 07:31:05 -0600 (MDT)
From: John Marvin <jsm@udlkern.fc.hp.com>
To: arnoldg@ncsa.uiuc.edu
Subject: Re: smp kernel hangs during boot on L2000 ...


Galen,

>
> My L2000 box is hanging here with the smp 64bit
> kernel I've built:
>
> CPU(s): 2 x PA8600 (PCX-W+) at 540.000000 MHz
> Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
> Console: colour dummy device 160x64
> Initialized PDC Console for debu
>                                 ^^^^^hangs right there...
>

...

> Has anyone got an SMP kernel running on their L2000, and if so, could you
> send me your .config and palo.conf for comparison?

I've done most of my SMP development on a 4 CPU L2000.  So far I've only
tested a SMP kernel on a L2000 (64 bit) and a J5000 (32 & 64 bit).
However, I have 440 Mhz PA8500 CPU's.  That shouldn't make a significant
difference, other than some possible timing problem.  I'll try to test on
a 2 CPU A500 with PA8600 CPU's on Monday just in case.

I am using the standard config (arch/parisc/defconfig), with the exception
of defining CONFIG_SMP. I don't see any problem with your kernel command
line either.

One possibility is that you are not using a new enough compiler. There was
a compiler bug (64 bit kernels only) that seemed to manifest itself more
on SMP kernels.

The latest native cross compiler can be found at:

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/unofficial-debs/

The latest 386 cross compiler is at:

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-latest.tar.gz

however, last time I checked, the 386 cross compiler did not yet have the
fix in it. Matt Taggart was going to try to build a new one.

Note for those wanting to start using the SMP code. The CONFIG_SMP support
should be considered as a base for continued development. It still has
a variety of bugs and instabilities. When building linux kernels in a
continuous loop, 10 out of about 320 builds failed to generate a kernel.
The kernel will typically hang if you start swapping heavily. Another
known problem is that the support has not been implemented for a clean
SMP shutdown (should not be difficult to add if someone cares to work
on that before I get a chance).

There is also some code that is not optimal for performance, i.e. there
are a fair number of tuning possibilities. Some code specifically was
not optimized due to the intention of changing the design (for example
the single spinlock used for all tlb dirty bit updates).

John

P.S. I am assuming you can boot a non CONFIG_SMP kernel on your L2000.
Is that a correct assumption?





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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: [parisc-linux] Re: Trace/Breakpoint trap on "make mrproper"
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>
> It looks like this patch:
> >Date: Thu, 6 Sep 2001 03:48:16 -0600 (MDT)
> >From: John Marvin jsm@udlkern.fc.hp.com
> >Subject: [parisc-linux-cvs] Patch for SMP support, etc.>
> >A rather large patch that includes my current SMP support changes, plus
> >a variety of other fixes/changes.
>
> did something. But it's so large I'm not sure what exactly :-)
>
> Jurriaan
>

I was pretty sure my changes to handle_break (in traps.c) would fix that
problem.  When I read your note I remembered that I had seen a similar
problem and fixed it.  The kernel would hang when a user program executed
a break instruction (either intentionally or not) without an attached
debugger. That is the problem you were seeing.

However, now that the machine doesn't hang, I am not sure if the remaining
problem you are seeing is a kernel bug or a userland bug.  It would appear
that you are executing 0's (0x00000000 is a break instruction). That
should cause the kernel to send you a SIGTRAP signal. I just checked some
of your old mail, and it looks like you are getting a SIGTRAP. One thing
that looks strange is that you are getting signals delivered using stack
addresses both at ~0xfaf00000 and ~0xbff00000. I wonder if make is using
an alternate signal stack?

John




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Re: smp kernel hangs during boot on L2000 ... (fwd)
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On Fri, Sep 07, 2001 at 08:42:56AM -0500, Galen Arnold forwarded:
> > Initialized PDC Console for debu
> >                                 ^^^^^hangs right there...
> >

> I've done most of my SMP development on a 4 CPU L2000.  So far I've only
> tested a SMP kernel on a L2000 (64 bit) and a J5000 (32 & 64 bit).
> However, I have 440 Mhz PA8500 CPU's.  That shouldn't make a significant
> difference, other than some possible timing problem.  I'll try to test on
> a 2 CPU A500 with PA8600 CPU's on Monday just in case.

I can't imagine that's likely either.  One difference is that I believe
a two-cpu L2k shows up with CPUs 0 and 3 rather than 0 and 1.  Maybe we have
a problem there.  John, could you try disabling cpus 1 and 2 on the L2k?

Galen, how about trying booting the same SMP kernel, but disable the
second CPU at the pdc prompt?  That might help narrow down the problem
a little.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] Re: Trace/Breakpoint trap on "make mrproper"
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On Fri, Sep 07, 2001 at 07:56:42AM -0600, John Marvin wrote:
> >
> > It looks like this patch:
> > >Date: Thu, 6 Sep 2001 03:48:16 -0600 (MDT)
> > >From: John Marvin jsm@udlkern.fc.hp.com
> > >Subject: [parisc-linux-cvs] Patch for SMP support, etc.>
> > >A rather large patch that includes my current SMP support changes, plus
> > >a variety of other fixes/changes.
> >
> > did something. But it's so large I'm not sure what exactly :-)
> >
> > Jurriaan
> >
> 
> I was pretty sure my changes to handle_break (in traps.c) would fix that
> problem.  When I read your note I remembered that I had seen a similar
> problem and fixed it.  The kernel would hang when a user program executed
> a break instruction (either intentionally or not) without an attached
> debugger. That is the problem you were seeing.
> 
> However, now that the machine doesn't hang, I am not sure if the remaining
> problem you are seeing is a kernel bug or a userland bug.  It would appear
> that you are executing 0's (0x00000000 is a break instruction). That
> should cause the kernel to send you a SIGTRAP signal. I just checked some
> of your old mail, and it looks like you are getting a SIGTRAP. One thing
> that looks strange is that you are getting signals delivered using stack
> addresses both at ~0xfaf00000 and ~0xbff00000. I wonder if make is using
> an alternate signal stack?
> 
Well, I browsed the source of make-3.79.1 (the latest) and found the
following parts with 'signal' in them:

./job.c:              exit_sig = process_signal(hPID);
./job.c:extern sigset_t fatal_signal_set;
./job.c:  (void) sigprocmask (SIG_BLOCK, &fatal_signal_set, (sigset_t *) 0);
./job.c:  (void) sigblock (fatal_signal_mask);
./job.c:    (void) sigblock (fatal_signal_mask);
./job.c:    (void) sigsetmask (sigblock (0) & ~(fatal_signal_mask));
./job.c:			lib$signal(status);
./job.c:		lib$signal(status);
./job.c:		lib$signal(status);
./job.c:  signal (SIGCHLD,SIG_IGN);
./main.c:extern RETSIGTYPE fatal_error_signal PARAMS ((int sig));
./main.c:sigset_t fatal_signal_set;
./main.c:int fatal_signal_mask;
./main.c:debug_signal_handler (sig)
./main.c:  sigemptyset (&fatal_signal_set);
./main.c:#define	ADD_SIG(sig)	sigaddset (&fatal_signal_set, sig)
./main.c:#define	ADD_SIG(sig)	fatal_signal_mask |= sigmask (sig)
./main.c:  if (signal ((sig), fatal_error_signal) == SIG_IGN)			      \
./main.c:    (void) signal ((sig), SIG_IGN);					      \
./main.c:  (void) signal (SIGCHLD, SIG_DFL);
./main.c:  (void) signal (SIGCLD, SIG_DFL);
./main.c:#  define HANDLESIG(s) signal (s, child_handler)
./main.c:  (void) signal (SIGUSR1, debug_signal_handler);
./amiga.c:    if (SetSignal(0L,0L) & SIGBREAKF_CTRL_C)
./signame.c:  init_sig (SIGUSR1, "USR1", _("User defined signal 1"));
./signame.c:  init_sig (SIGUSR2, "USR2", _("User defined signal 2"));
./signame.c:  init_sig (SIGSTOP, "STOP", _("Stopped (signal)"));
./signame.c:  init_sig (SIGDANGER, "DANGER", _("Danger signal"));

I've snipped lots of comments etc., and I see no mention of 'stack'
anywhere.

[the following is all tested on a 32-bit linux-2.4.9-pa16 kernel, with
default configuration (CPU=PA8x00) and gcc-3.0.2 20010825]

I'll add the output of 'strace make mrproper', but even the operation of 
strace or gdb seems to change the nature of the bug:

gdb /usr/bin/make && run mrproper doesn't crash
strace -o ../make.log make mrproper doesn't crash
strace make mrproper > ../make2.log 2>&1 doesn't crash
strace make mrproper crashes
make mrproper crashes

So I'll include a part of the make2.log and indicate where it crashes:
This log has been run through 'uniq-c' - scroll down to the 6134 lines
of rt_sigreturn(0) and you'll see why. This is exactly the point where
it normally crashes - the exact number of 'sigreturn(0)' lines differs.
There's also some interesting kernel messages in /var/log/messages, I'll
add them below.

      1	newuname({sys="Linux", node="pa8200", ...}) = 0
      1	brk(0)                                  = 0x44000
      1	open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
      1	open("/etc/ld.so.cache", O_RDONLY)      = 3
      1	idle()                                  = 0
      1	mmap(NULL, 6556, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40019000
      1	close(3)                                = 0
      1	open("/lib/libc.so.6", O_RDONLY)        = 3
      1	read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\300"..., 1024) = 1024
      1	idle()                                  = 0
      1	mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001b000
      1	mmap(NULL, 1417616, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4002a000
      1	mprotect(0x40167000, 119184, PROT_NONE) = 0
      1	mmap(0x40176000, 45056, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x13c000) = 0x40176000
      1	mmap(0x40181000, 12688, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40181000
      1	close(3)                                = 0
      1	mprotect(0x10000, 135168, PROT_READ|PROT_WRITE) = 0
      1	mprotect(0x10000, 135168, PROT_READ|PROT_EXEC) = 0
      1	munmap(0x40019000, 6556)                = 0
      1	getpid()                                = 284
      1	brk(0)                                  = 0x44000
      1	brk(0x44030)                            = 0x44030
      1	brk(0x45000)                            = 0x45000
      1	rt_sigaction(SIGHUP, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
      1	rt_sigaction(SIGQUIT, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
      1	rt_sigaction(SIGINT, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
      1	rt_sigaction(SIGTERM, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
      1	rt_sigaction(SIGXCPU, {0x40c2e, [HUP], SA_RESTART}, {SIG_DFL}, 8) = 0
      1	rt_sigaction(SIGXFSZ, {0x40c2e, [INT], SA_RESTART}, {SIG_DFL}, 8) = 0
      1	rt_sigaction(SIGCHLD, {SIG_DFL}, {SIG_DFL}, 8) = 0
      1	getcwd("/home/jurriaan/source/linux", 4095) = 28
      1	ioperm(0x2cee4, 0xbff01d48, 0xbff01d48) = 0
      1	ioperm(0x2cef4, 0xbff01d48, 0xbff01d48) = -1 ENOENT (No such file or directory)
      1	ioperm(0x2cf08, 0xbff01d48, 0xbff01d48) = 0
      1	ioperm(0x2cee4, 0xbff01d48, 0xbff01d48) = 0
      1	rt_sigaction(SIGCHLD, {0x40dae, [], SA_INTERRUPT}, NULL, 8) = 0
      1	rt_sigaction(SIGUSR1, {0x40ace, [], SA_RESTART}, {SIG_DFL}, 8) = 0
      1	brk(0x46000)                            = 0x46000
      1	brk(0x47000)                            = 0x47000
      1	brk(0x48000)                            = 0x48000
      1	brk(0x49000)                            = 0x49000
      1	ioperm(0x2aabc, 0xbff01e88, 0xbff01e88) = 0
      1	open(".", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
      1	idle()                                  = 0
      1	fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
      1	brk(0x4b000)                            = 0x4b000
      1	SYS_201(0x3, 0x48050, 0x1000, 0xd78beec7, 0) = 672
      1	SYS_201(0x3, 0x48050, 0x1000, 0x40178ca8, 0x2a0) = 0
      1	close(3)                                = 0
      1	open("Makefile", O_RDONLY|O_LARGEFILE)  = 3
      1	idle()                                  = 0
      1	mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
      1	read(3, "VERSION = 2\nPATCHLEVEL = 4\nSUBLE"..., 4096) = 4096
      1	pipe([4, 5])                            = 0
      1	fork()                                  = 285
      1	close(5)                                = 0
      1	read(4, "parisc\n", 200)                = 7
      1	read(4, "\230", 193)                    = -512
      1	--- SIGCHLD (Child exited) ---
      1	rt_sigreturn(0)                         = -1 EINTR (Interrupted system call)
      1	read(4, "", 193)                        = 0
      1	close(4)                                = 0
      1	wait4(-1, [WIFEXITED(s) && WEXITSTATUS(s) == 0], 0, NULL) = 285
      1	pipe([4, 5])                            = 0
      1	fork()                                  = 288
      1	close(5)                                = 0
      1	read(4, "/bin/sh\n", 200)               = 8
      1	read(4, "", 192)                        = -512
      1	--- SIGCHLD (Child exited) ---
      1	rt_sigreturn(0)                         = -1 EINTR (Interrupted system call)
      1	read(4, "", 192)                        = 0
      1	close(4)                                = 0
      1	wait4(-1, [WIFEXITED(s) && WEXITSTATUS(s) == 0], 0, NULL) = 288
      1	pipe([4, 5])                            = 0
      1	fork()                                  = 289
      1	--- SIGCHLD (Child exited) ---
      1	rt_sigreturn(0)                         = 289
      1	close(5)                                = 0
      1	read(4, "/home/jurriaan/source/linux\n", 200) = 28
      1	read(4, "", 172)                        = 0
      1	close(4)                                = 0
      1	wait4(-1, [WIFEXITED(s) && WEXITSTATUS(s) == 0], 0, NULL) = 289
      1	read(3, "+= drivers/scsi/scsidrv.o\nDRIVER"..., 4096) = 4096
      1	brk(0x4c000)                            = 0x4c000
      1	open("arch/parisc/Makefile", O_RDONLY|O_LARGEFILE) = 4
      1	idle()                                  = 0
      1	mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001a000
      1	read(4, "#\n# parisc/Makefile\n#\n# This fil"..., 4096) = 3156
      1	pipe([5, 6])                            = 0
      1	fork()                                  = 290
      1	--- SIGCHLD (Child exited) ---
   6134	rt_sigreturn(0)                         = 290
      1	close(6)                                = 0
      1	read(5, "parisc\n", 200)                = 7
      1	read(5, "", 193)                        = 0
      1	close(5)                                = 0
      1	wait4(-1, [WIFEXITED(s) && WEXITSTATUS(s) == 0], 0, NULL) = 290
      1	read(4, "", 4096)                       = 0
      1	brk(0x4d000)                            = 0x4d000
      1	close(4)                                = 0
      1	munmap(0x4001a000, 4096)                = 0
      1	read(3, "; ln -sf asm-$(ARCH) asm)\n\t@if ["..., 4096) = 4096

Here are the messages in /var/log/messages during a single 
strace make mrproper:

Sep  7 23:01:32 pa8200 kernel: 0 000004e1
Sep  7 23:01:33 pa8200 kernel: <0 000004e1
Sep  7 23:02:04 pa8200 last message repeated 36 times
Sep  7 23:03:06 pa8200 last message repeated 66 times
Sep  7 23:04:09 pa8200 last message repeated 82 times
Sep  7 23:05:11 pa8200 last message repeated 90 times
Sep  7 23:06:12 pa8200 last message repeated 82 times
Sep  7 23:06:19 pa8200 last message repeated 12 times
Sep  7 23:06:20 pa8200 kernel: <0 000004e1

I have different ones from earlier runs:

pa8200:/home/jurriaan/source# tail -f /var/log/messages
Sep  7 22:38:32 pa8200 kernel: VFS: Mounted root (ext2 filesystem) readonly.
Sep  7 22:38:32 pa8200 kernel: Adding Swap: 1041400k swap-space (priority -1)
Sep  7 22:38:32 pa8200 kernel: eth0: Setting half-duplex based on MII#1 link partner capability of 0021.
Sep  7 22:55:54 pa8200 kernel: 0001 00000000 00040130
Sep  7 22:55:54 pa8200 kernel: 0001 00000000 00040130
Sep  7 22:56:30 pa8200 kernel: 0 000002e6
Sep  7 22:56:30 pa8200 kernel: <0 000002e6
Sep  7 22:56:34 pa8200 last message repeated 7 times
Sep  7 22:56:42 pa8200 kernel: 0001 00000000 00040130
Sep  7 22:57:16 pa8200 kernel: <0 000003dd
Sep  7 22:57:31 pa8200 last message repeated 25 times
Sep  7 22:57:53 pa8200 kernel: 0001 00000000 00040130
Sep  7 22:58:09 pa8200 kernel: 0001 00000000 00040130

What else can I do to help debugging this?

Greetings,
Jurriaan




From - Thu Nov 08 21:19:09 2018
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Subject: [parisc-linux] Re: Trace/Breakpoint trap on "make mrproper"]
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Forgot to mention: I also have oopses in dmesg:


break 0x000002: pid=331 command='make'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011000000000000001011
r0-3	 00000000 00040130 bff02598 bff024e8
r4-7	 000000c8 40176434 0004b6e0 bff022d0
r8-11	 00000001 bff022c8 000401ec bff02460
r12-15	 00000028 00000029 bff02360 00000002
r16-19	 00000000 00043130 0002a800 00000000
r20-23	 000000ad 40106c54 40178e50 40178e30
r24-27	 00000005 00000001 00000000 00040130
r28-31	 fffffffc 0004b6d8 bff02818 00019ca4
sr0-3	 000004e1 0000020f 00000000 000004e1
sr4-7	 000004e1 000004e1 000004e1 000004e1

IASQ: 000004e1 000004e1 IAOQ: bff025a7 bff0281f
 IIR: 00000002    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 2ca84000 CR31: 10358000
 ORIG_R28: 40176434
break 0x000002: pid=331 command='make'

[the above was repeated exactly the same some 10 times]

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001111
r0-3	 00000000 fffff000 bff02dd8 bff02ae0
r4-7	 4017e57c bff02b68 00000002 bff022d0
r8-11	 00000001 bff022c8 000401ec bff02460
r12-15	 00000028 00000029 bff02360 00000002
r16-19	 00000000 00043130 0002a800 4017e57c
r20-23	 000000ad 4006b7ec bff030a8 00000008
r24-27	 00000000 00000001 0000014b 00040130
r28-31	 00000000 0004b6d8 bff03058 4006b7f7
sr0-3	 000004e1 000004e1 00000000 000004e1
sr4-7	 000004e1 000004e1 000004e1 000004e1

IASQ: 000004e1 000004e1 IAOQ: bff02de3 bff02de7
 IIR: 00000000    ISR: 10240072  IOR: a12842c8
 CPU:        0   CR30: 2ca84000 CR31: 10358000
 ORIG_R28: 0000014b
break 0x000002: pid=341 command='make'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011101111111100001111
r0-3	 00000000 00040130 bff02598 bff024e8
r4-7	 000000c8 40176434 0004b6e0 bff022d0
r8-11	 00000001 bff022c8 000401ec bff02460
r12-15	 00000028 00000029 bff02360 00000002
r16-19	 00000000 00043130 0002a800 00000000
r20-23	 000000ad 40106c54 40178e50 40178e30
r24-27	 00000005 00000001 00000000 00040130
r28-31	 fffffffc 0004b6d8 bff02818 00019ca7
sr0-3	 00000000 00000506 00000000 00000506
sr4-7	 00000506 00000506 00000506 00000506

IASQ: 00000506 00000506 IAOQ: bff025a7 bff0281f
 IIR: 00000002    ISR: 1024005e  IOR: 6c8402b4
 CPU:        0   CR30: 279c4000 CR31: 10358000
 ORIG_R28: 40176434
break 0x000002: pid=350 command='make'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011101111111100001111
r0-3	 00000000 00040130 bff02598 bff024e8
r4-7	 000000c8 40176434 0004b6e0 bff022d0
r8-11	 00000001 bff022c8 000401ec bff02460
r12-15	 00000028 00000029 bff02360 00000002
r16-19	 00000000 00043130 0002a800 00000000
r20-23	 000000ad 40106c54 40178e50 40178e30
r24-27	 00000005 00000001 00000000 00040130
r28-31	 fffffffc 0004b6d8 bff02818 00019ca7
sr0-3	 00000000 0000052b 00000000 0000052b
sr4-7	 0000052b 0000052b 0000052b 0000052b

IASQ: 0000052b 0000052b IAOQ: bff025a7 bff0281f
 IIR: 00000002    ISR: 10240076  IOR: 890402b4
 CPU:        0   CR30: 2d27c000 CR31: 10358000
 ORIG_R28: 40176434
break 0,0: pid=357 command='make'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111
r0-3	 00000000 00040130 bff026d8 00000000
r4-7	 4017e57c 40176434 0004b6e0 00000000
r8-11	 00000000 bff022c8 000401ec bff02460
r12-15	 00000028 00000029 00000001 00040130
r16-19	 00040130 00000001 00000000 00000000
r20-23	 000000ad 400e220c 40178e50 00000000
r24-27	 00000005 00000001 00000000 00040130
r28-31	 0000016b 0004b6d8 bff02958 00019ca7
sr0-3	 00000000 00000547 00000000 00000547
sr4-7	 00000547 00000547 00000547 00000547

IASQ: 00000547 00000547 IAOQ: bff026e3 bff026e7
 IIR: 00000000    ISR: 10240076  IOR: 460402b4
 CPU:        0   CR30: 2d27c000 CR31: 10358000
 ORIG_R28: 00000000
break 0x000002: pid=364 command='make'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011101111111100001111
r0-3	 00000000 00040130 bff02598 bff024e8
r4-7	 000000c8 40176434 0004b600 bff022d0
r8-11	 00000001 bff022c8 000401ec bff02460
r12-15	 00000028 00000029 bff02360 00000002
r16-19	 00000000 00043130 0002a800 00000000
r20-23	 000000ad 40106c54 40178e50 40178e30
r24-27	 00000005 00000001 00000000 00040130
r28-31	 fffffffc 0004b5f8 bff02818 00019ca7
sr0-3	 00000000 00000563 00000000 00000563
sr4-7	 00000563 00000563 00000563 00000563

IASQ: 00000563 00000563 IAOQ: bff025a7 bff0281f
 IIR: 00000002    ISR: 10240075  IOR: 3b0402b4
 CPU:        0   CR30: 2d27c000 CR31: 10358000
 ORIG_R28: 40176434
break 0x000002: pid=371 command='make'

These bffxxxxx addresses are not in the kernel, correct?

Greetings,
Jurriaan




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] New i386 cross compilers
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Hi palinux people,

I have built a new i386 to hppa/hppa64 cross compiler tarball and placed it at,

ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20010905.tar.gz

Untar it from / it lives in /opt/palinux/
Report any problems to the list.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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Subject: [parisc-linux] fork does not return signal with make
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I tried to do make config on the linux-2.4.9-pa17 kernel tree using the pa17
kernel, which resulted in:

This is on a C240.

execve("/usr/bin/make", ["make", "config"], [/* 18 vars */]) = 0
newuname({sys="Linux", node="agaricus", ...}) = 0
brk(0)                                  = 0x44000
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
idle()                                  = 0
mmap(NULL, 8081, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40019000
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\300"..., 1024) = 1024
idle()                                  = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001b000
mmap(NULL, 1417616, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4002a000
mprotect(0x40167000, 119184, PROT_NONE) = 0
mmap(0x40176000, 45056, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x13c000) = 0x40176000
mmap(0x40181000, 12688, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40181000
close(3)                                = 0
mprotect(0x10000, 135168, PROT_READ|PROT_WRITE) = 0
mprotect(0x10000, 135168, PROT_READ|PROT_EXEC) = 0
munmap(0x40019000, 8081)                = 0
getpid()                                = 383
brk(0)                                  = 0x44000
brk(0x44030)                            = 0x44030
brk(0x45000)                            = 0x45000
rt_sigaction(SIGHUP, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGQUIT, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGINT, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGTERM, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGXCPU, {0x40c2e, [HUP], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGXFSZ, {0x40c2e, [INT], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGCHLD, {SIG_DFL}, {SIG_DFL}, 8) = 0
getcwd("/usr/src/linux-pa17", 4095)     = 20
ioperm(0x2cee4, 0xfaf01cc8, 0xfaf01cc8) = 0
ioperm(0x2cef4, 0xfaf01cc8, 0xfaf01cc8) = -1 ENOENT (No such file or directory)
ioperm(0x2cf08, 0xfaf01cc8, 0xfaf01cc8) = 0
ioperm(0x2cee4, 0xfaf01cc8, 0xfaf01cc8) = 0
rt_sigaction(SIGCHLD, {0x40dae, [], SA_INTERRUPT}, NULL, 8) = 0
rt_sigaction(SIGUSR1, {0x40ace, [], SA_RESTART}, {SIG_DFL}, 8) = 0
brk(0x46000)                            = 0x46000
brk(0x47000)                            = 0x47000
brk(0x48000)                            = 0x48000
ioperm(0x2aabc, 0xfaf01e08, 0xfaf01e08) = 0
open(".", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
idle()                                  = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
brk(0x4a000)                            = 0x4a000
SYS_201(0x3, 0x47f80, 0x1000, 0xd78beec7, 0) = 928
SYS_201(0x3, 0x47f80, 0x1000, 0x40178ca8, 0x3a0) = 0
close(3)                                = 0
open("Makefile", O_RDONLY|O_LARGEFILE)  = 3
idle()                                  = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(3, "VERSION = 2\nPATCHLEVEL = 4\nSUBLE"..., 4096) = 4096
pipe([4, 5])                            = 0
fork()                                  = 384
close(5)                                = 0
read(4, "parisc\n", 200)                = 7
read(4, "\230", 193)                    = -512
--- SIGCHLD (Child exited) ---
rt_sigreturn(0)                         = -1 EINTR (Interrupted system call)
read(4, "", 193)                        = 0
close(4)                                = 0
wait4(-1, [WIFEXITED(s) && WEXITSTATUS(s) == 0], 0, NULL) = 384
pipe([4, 5])                            = 0
fork()                                  = 387
close(5)                                = 0
read(4, "/bin/sh\n", 200)               = 8
read(4, "", 192)                        = -512
--- SIGCHLD (Child exited) ---
rt_sigreturn(0)                         = -1 EINTR (Interrupted system call)
read(4, "", 192)                        = 0
close(4)                                = 0
wait4(-1, [WIFEXITED(s) && WEXITSTATUS(s) == 0], 0, NULL) = 387
pipe([4, 5])                            = 0
fork()                                  = 388
--- SIGCHLD (Child exited) ---
rt_sigreturn(0)                         = 388
close(5)                                = 0
read(4, "/usr/src/linux-pa17\n", 200)   = 20
read(4, "", 180)                        = 0
close(4)                                = 0
wait4(-1, [WIFEXITED(s) && WEXITSTATUS(s) == 0], 0, NULL) = 388
open(".config", O_RDONLY|O_LARGEFILE)   = 4
idle()                                  = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001a000
read(4, "#\n# Automatically generated by m"..., 4096) = 4096
brk(0x4b000)                            = 0x4b000
read(4, "CONFIG_SCSI_EATA_DMA is not set\n"..., 4096) = 4096
read(4, "PAD is not set\n\n#\n# Joysticks\n#\n"..., 4096) = 4096
brk(0x4c000)                            = 0x4c000
read(4, "#\n\n#\n# Frame-buffer support\n#\n# "..., 4096) = 1077
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0x4001a000, 4096)                = 0
open(".depend", O_RDONLY|O_LARGEFILE)   = 4
idle()                                  = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001a000
read(4, "init/main.o: init/main.c \\\n   /u"..., 4096) = 2847
brk(0x4d000)                            = 0x4d000
brk(0x4e000)                            = 0x4e000
ioperm(0xfaf02268, 0xfaf02310, 0xfaf02310) = -1 ENOENT (No such file or directory)
ioperm(0xfaf02268, 0xfaf02308, 0xfaf02308) = -1 ENOENT (No such file or directory)
ioperm(0xfaf02268, 0xfaf02310, 0xfaf02310) = -1 ENOENT (No such file or directory)
ioperm(0xfaf02268, 0xfaf02310, 0xfaf02310) = -1 ENOENT (No such file or directory)
ioperm(0xfaf02268, 0xfaf02310, 0xfaf02310) = -1 ENOENT (No such file or directory)
ioperm(0xfaf02268, 0xfaf02310, 0xfaf02310) = -1 ENOENT (No such file or directory)
ioperm(0xfaf02268, 0xfaf02318, 0xfaf02318) = -1 ENOENT (No such file or directory)
ioperm(0xfaf02268, 0xfaf02318, 0xfaf02318) = -1 ENOENT (No such file or directory)
ioperm(0xfaf02268, 0xfaf02310, 0xfaf02310) = -1 ENOENT (No such file or directory)
brk(0x4f000)                            = 0x4f000
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0x4001a000, 4096)                = 0
read(3, "+= drivers/scsi/scsidrv.o\nDRIVER"..., 4096) = 4096
brk(0x50000)                            = 0x50000
open("arch/parisc/Makefile", O_RDONLY|O_LARGEFILE) = 4
idle()                                  = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001a000
read(4, "#\n# parisc/Makefile\n#\n# This fil"..., 4096) = 3156
pipe([5, 6])                            = 0
fork()                                  = 389
close(6)                                = 0
read(5, "parisc\n", 200)                = 7
read(5, "", 193)                        = 0
close(5)                                = 0
wait4(-1, [WIFEXITED(s) && WEXITSTATUS(s) == 0], 0, NULL) = 389
--- SIGCHLD (Child exited) ---
rt_sigreturn(0)                         = 389
rt_sigreturn(0)                         = 389
(repeated many times)

-------------------------------------------------------------------------

doing this with the 2.4.0 kernel did not cause this error...


execve("/usr/bin/make", ["make", "config"], [/* 21 vars */]) = 0
newuname({sys="Linux", node="agaricus", ...}) = 0
brk(0)                                  = 0x44000
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)

...

mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001a000
read(4, "#\n# parisc/Makefile\n#\n# This fil"..., 4096) = 3156
pipe([9, 10])                           = 0
fork()                                  = 1305
--- SIGCHLD (Child exited) ---
rt_sigreturn(0)                         = 1305
close(10)                               = 0
read(9, "parisc\n", 200)                = 7
read(9, "", 193)                        = 0
close(9)                                = 0
wait4(-1, [WIFEXITED(s) && WEXITSTATUS(s) == 0], 0, NULL) = 1305
brk(0x58000)                            = 0x58000
read(4, "", 4096)                       = 0
(program continues)

Maybe one of you knows what is going on.

Cheers,

Randall




From - Thu Nov 08 21:19:09 2018
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From: Randall Craig <randall@tdl.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] fork does not return signal with make
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Xref: news.gmane.org gmane.linux.ports.parisc:12149

Unlike Jurriaan's Trace/Breakpoint trap.  Mine does not
crash the OS or write to syslog.

cheers,

Randall




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Subject: Re: [parisc-linux] fork does not return signal with make
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On Sat, Sep 08, 2001 at 03:27:36AM -0700, Randall Craig wrote:
> I tried to do make config on the linux-2.4.9-pa17 kernel tree using the pa17
> kernel, which resulted in:
> 
> This is on a C240.
> 
> read(5, "parisc\n", 200)                = 7
> read(5, "", 193)                        = 0
> close(5)                                = 0
> wait4(-1, [WIFEXITED(s) && WEXITSTATUS(s) == 0], 0, NULL) = 389
> --- SIGCHLD (Child exited) ---
> rt_sigreturn(0)                         = 389
> rt_sigreturn(0)                         = 389
> (repeated many times)
> 
> Maybe one of you knows what is going on.
> 
I don't, but I can tell you I have the same problems on my C200 with the
same kernel - check out the whole 'Trace/breakpoint' thread.

Jurriaan
-- 
Besides, if a shitty disease and a rotten planet like this couldn't beat
us, a bunch of walking appliances with attitude isn't going to do it.
	Simon R Green - Deathstalker Honour
GNU/Linux 2.4.9-ac9 SMP/ReiserFS 2x1402 bogomips load av: 0.00 0.07 0.10




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From: =?ISO-8859-1?Q?R=FCdiger?= Scholz <rscholz@hrzpub.tu-darmstadt.de>
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Subject: [parisc-linux] HIL-Keyboard not found after reboot
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Hi all,
I just compilied the new kernel (2.4.9-pa16), and noticed that after 
rebooting my machine via "reboot" my PS/2-Keyboard on the HIL-Adptorbox 
isn't recognized anymore. Switching the machine off and on, makes 
Keyboard visible again. Here are the important lines from bootlog:

SNIP---
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf4000000, versions 0x4, 0x0, 0x77
2. Mirage GSC Builtin Graphics (10) at 0xf8000000, versions 0x13, 0x0, 0x85
3. Mirage Core BA (11) at 0xf0100000, versions 0x29, 0x0, 0x81
4. Mirage Core SCSI (10) at 0xf0106000, versions 0x29, 0x0, 0x82
5. Mirage Core LAN (802.3) (10) at 0xf0107000, versions 0x29, 0x0, 0x8a
6. Mirage Core RS-232 (10) at 0xf0105000, versions 0x29, 0x0, 0x8c
7. Mirage Core Centronics (10) at 0xf0102000, versions 0x29, 0x0, 0x74
8. Mirage Audio (10) at 0xf0104000, versions 0x29, 0x0, 0x7b
9. Mirage Core PC Floppy (10) at 0xf010a000, versions 0x29, 0x0, 0x83
10. Mirage Core PS/2 Port (10) at 0xf0108000, versions 0x29, 0x0, 0x84
11. Mirage Core PS/2 Port (10) at 0xf0108100, versions 0x29, 0x0, 0x84
12. Mirage Wax BA (11) at 0xf0200000, versions 0x13, 0x0, 0x8e
13. Mirage 100 Wax HIL (10) at 0xf0201000, versions 0x13, 0x0, 0x73
14. Mirage Wax RS-232 (10) at 0xf0202000, versions 0x13, 0x0, 0x8c
15. Mirage 100 (0) at 0xfffbe000, versions 0x60b, 0x0, 0x4
16. Mirage 100 (1) at 0xfffbf000, versions 0x4b, 0x0, 0x9
That's a total of 16 devices.
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
Kernel command line: root=/dev/sda4 HOME=/ TERM=linux console=ttyS0
Console: colour dummy device 160x64
Calibrating delay loop... 99.73 BogoMIPS
Memory: 126164k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
Lasi version 0 at 0xf0100000 found.
LED display at f00e0000 registered
Wax at 0xf0200000 found.
Wax: HIL Keyboard-NMI registered.
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
VFS: Diskquotas version dquot_6.4.0 initialized
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ 
SERIAL_PCI en
abled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0202800 (irq = 121) is a 16550A
PS/2 keyboard port at 0xf0108000 (irq 69) found, no device attached.
PS/2 psaux port at 0xf0108100 (irq 69) found, no device attached.
Found HIL at 0xf0201000, IRQ 126
HIL: no keyboard present.
Warning : device (10, 0x13, 0x0, 0x73) NOT claimed by HIL
SNAP---

and after a coldboot the last lines are:
SNIP------
Found HIL at 0xf0201000, IRQ 126
HIL: keyboard found at id 0
HIL: keymap loaded.
SNAP-----

Has anyone a solution?
So long,
            Rdiger





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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: Re: [parisc-linux] New i386 cross compilers
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Xref: news.gmane.org gmane.linux.ports.parisc:12152

> Hi palinux people,
> 
> ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20010905.tar.gz
> 
> Untar it from / it lives in /opt/palinux/
> Report any problems to the list.
> 
> Thanks,
>

Matt,

What glibc did you use to build the cross compiler? (2.2.4-1 or earlier?)
Would you mind elucidating on the build process?

Cheers,
Carlos.




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From: Timothy Ball <timball@tux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ext3+parisc kernel
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[cross posting cause I'm not sure who should get this email]

I am attempting to make ext3 work on the parisc kernel tree. So far I
have successfully patched and have made the kernel compile w/ only two
line changes to the source.

I got ext3 from the cvs, and the parisc 2.4.9-pa17 kernel and I've
patched the parisc kernel w/ the add-to-kernel.sh script. after a bit of
fighting I got the kernel to compile. I had to add and remove the
following lines:

line added include/linux/fs.h:1348
extern loff_t no_llseek(struct file *file, loff_t offset, int origin);

Needed for the no_llseek symbol.

line removed kernel/ksyms.c:180
EXPORT_SYMBOL(fsync_no_super);

Needed removal because fsync_no_super was already being exported by
fs/buffer.c:354

Now when I boot. /proc is not mounted at boot, and when I mount it all
the files in /proc appear to be directories. Also networking is gone.
ifconfig just returns w/ nothing and ifconfig -a shows no devices.

But on the bright side when I cat /proc/filesystems/ (everything in
/proc is a directory even though it's not) I get ext3 to come up... So
it kinda works. Gonna get the newest e2fsprogs and see if I can make a
journal and have this broken kernel mount / as ext3.

--timball

-- 
	GPG key available on pgpkeys.mit.edu
pub  1024R/CFF85605 1999-06-10 Timothy L. Ball <timball@sheergenius.com>
     Key fingerprint = 8A 8E 64 D6 21 C0 90 29  9F D6 1E DC F8 18 CB CD




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From: Randall Craig <randall@tdl.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] CXXX Processor Identification Path
Date: Sat, 8 Sep 2001 17:48:24 -0700
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The  C240+ reports as PA8000 processors.  This patch
will make them report as PA8200 processors. The file hardware.c also reported
that the C180 had a PA8200 processor, which the HP Hardware Compatability list
reports that the C180 has a PA8000 processor.


Cheers,

Randall

--- linux/arch/parisc/kernel/hardware.c	Sat Sep  8 17:47:15 2001
+++ linux.new/arch/parisc/kernel/hardware.c	Sat Sep  8 17:38:20 2001
@@ -1372,8 +1372,9 @@
 	{ 0x0592, 0x0fff, pcxt_  },  /* 0x0592 - 0x0592 */
 	{ 0x0593, 0x0fff, pcxu   },  /* 0x0593 - 0x0593 */
 	{ 0x0594, 0x0ffc, pcxu   },  /* 0x0594 - 0x0597 */
-	{ 0x0598, 0x0ffc, pcxu   },  /* 0x0598 - 0x059b */
-	{ 0x059c, 0x0ffe, pcxu_  },  /* 0x059c - 0x059d */
+	{ 0x0598, 0x0ffe, pcxu_  },  /* 0x0598 - 0x0599 */
+	{ 0x059a, 0x0ffd, pcxu   },  /* 0x059a - 0x059c */
+        { 0x059d, 0x0fff, pcxu_  },  /* 0x059d - 0x059d */
 	{ 0x059e, 0x0fff, pcxt_  },  /* 0x059e - 0x059e */
 	{ 0x059f, 0x0fff, pcxu   },  /* 0x059f - 0x059f */
 	{ 0x05a0, 0x0ffe, pcxt_  },  /* 0x05a0 - 0x05a1 */




From - Thu Nov 08 21:19:09 2018
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Subject: [parisc-linux] 'Getting a parisc-linux cvs kernel without stress'
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This is a small update/addition to the 'kernel-building recipe'.

============================================================
If you want to test the latest kernel and don't want to download the
enormous linux-latest.tar.gz file every time, use the cvs system to
get just the changed files. This is a very short manual how to do this
in 3 steps.  Obviously, step 1 and 2 are only needed once. Step 3 can be
repeated as you like.

Step 1 - create the right environment.

Make sure you have a variable 'CVSROOT' with value
CVSROOT=:pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc

To make it available on every boot, put it in ~/.bashrc like this:

CVSROOT=:pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc
export CVSROOT

Also create a .cvsrc file in your home directory with this content:

cvs -z3 -q
diff -uNp
update -Pd
remove -f

Also make sure you have cvs installed ('apt-get install cvs' if you have
not). Before going on to step 2, make sure the CVSROOT variable is
actually set - by logging out and logging in again.

Step 2 - prepare a linux source tree

Get linux-latest.tar.gz from the ftp-site, and untar. In this manual,
I'll user ~/source/ as directory untar in, but any directory will do.
Now you'll have to change some files in the source tree. Make sure your
CVSROOT variable is set correctly and type:

for i in `find linux -name Root`; do echo $CVSROOT > $i; done

Step 3 - get the latest source code

Change directory to ~/source/ and type

cvs update -APd linux

You should see a list of files looking something like this:

P linux/Makefile
P linux/Documentation/parisc/registers
P linux/arch/parisc/vmlinux.lds
P linux/arch/parisc/vmlinux64.lds
P linux/arch/parisc/hpux/fs.c

etc.

To make sure something has changed you can always do:

grep -i version linux/Makefile | head -2

which will answer 

VERSION = 2
EXTRAVERSION = -pa17

Now compile your new kernel as usual.
============================================================

This is by way of thanks to everyone who helped me to get it working,
and to possibly prevent other people from endless trying.

Good luck,
Jurriaan
-- 
Satan: "Welcome to hell - Here's your DoubleSpaced 386SX and windows"
GNU/Linux 2.4.9-ac10 SMP/ReiserFS 2x1402 bogomips load av: 0.31 0.08 0.02




From - Thu Nov 08 21:19:09 2018
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From: Boyan Lazarov <bsl@mek.dtu.dk>
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Subject: [parisc-linux] Installing on Apollo 735
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Hi ,
I am trying to install linux on Apollo 735 . The system boots normally (
serial console, from cd image 0.9.2) . When i reach the point to install
the kernel  and the modules , the installer starts the installation and
gives message 
ioctl: LOOP_CLR_FD: No such device or address 

Can somebody help me ?

Boyan Lazarov




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On Wed, 5 Sep 2001, ext John Marvin wrote:

> > Sorry it took so long to do further debugging... Anyway the System.map
> > says:
> >
> > 102ee3a0 ? parisc_hardware_description
> > 1010ae98 T alloc_pa_dev
> >
>
> Oops. I found this bug last week, but forgot to commit a patch for it.
> I just did that.

Now it works for me too. Thanks!

> John
- Goodi
"The linuX Files -- The Source is Out There."
,,`,,`,,`,,``,,





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On Sun, Sep 09, 2001 at 07:14:05PM +0200, Boyan Lazarov wrote:
> Hi ,
> I am trying to install linux on Apollo 735 . The system boots normally (
> serial console, from cd image 0.9.2) . When i reach the point to install
> the kernel  and the modules , the installer starts the installation and
> gives message 
> ioctl: LOOP_CLR_FD: No such device or address 

The installer gives that message for everyone, but normally it
immediately continues with the install.  What disks are you trying
to install on to?  I don't believe the internal wide scsi disks
are supported atm, but people have installed on to external narrow
disks.

Richard





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From: Boyan Lazarov <bsl@mek.dtu.dk>
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Subject: Re: [parisc-linux] Installing on Apollo 735
Date: Mon, 10 Sep 2001 10:03:27 +0200
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This is the output:

SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: PLEXTOR   Model: CD-ROM PX-32TS    Rev: 1.02
  Type:   CD-ROM                             ANSI SCSI revision: 02
  Vendor: MICROP    Model: 2112              Rev: 4024
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST31200N          Rev: 8714
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 5, lun 0
Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)
Partition check:
 sda: unknown partition table
SCSI device sdb: 2051460 512-byte hdwr sectors (1050 MB)
 sdb: sdb1 sdb2 sdb3
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0

I have 2 disks which are connected to fast wide SCSI but they are not
recognized by the kernel.

I am installing the system on /dev/sdb

When i got the message , I have waited for more than 30 min .

Boyan

Richard Hirst wrote:
> 
> On Sun, Sep 09, 2001 at 07:14:05PM +0200, Boyan Lazarov wrote:
> > Hi ,
> > I am trying to install linux on Apollo 735 . The system boots normally (
> > serial console, from cd image 0.9.2) . When i reach the point to install
> > the kernel  and the modules , the installer starts the installation and
> > gives message
> > ioctl: LOOP_CLR_FD: No such device or address
> 
> The installer gives that message for everyone, but normally it
> immediately continues with the install.  What disks are you trying
> to install on to?  I don't believe the internal wide scsi disks
> are supported atm, but people have installed on to external narrow
> disks.
> 
> Richard




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From: Randall Craig <randall@tdl.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ccio-dma error
Date: Mon, 10 Sep 2001 01:25:02 -0700
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My computer frequently crashes with the error message:

 Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping resource

This is with kernel pa17.


This occurs during medium to heavy io. 



This has also caused my /var/lib/dbkg directory to be missing.

How can I rebuild it?




From - Thu Nov 08 21:19:10 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Installing on Apollo 735
Date: Mon, 10 Sep 2001 10:36:58 +0100
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To: Boyan Lazarov <bsl@mek.dtu.dk>
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Xref: news.gmane.org gmane.linux.ports.parisc:12161

On Mon, Sep 10, 2001 at 10:03:27AM +0200, Boyan Lazarov wrote:
> This is the output:
> 
> SCSI subsystem driver Revision: 1.00
> sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
> scsi0: Revision 0x0
> scsi0: test 1 completed ok.
> scsi0 : LASI/Simple 53c7xx
>   Vendor: PLEXTOR   Model: CD-ROM PX-32TS    Rev: 1.02
>   Type:   CD-ROM                             ANSI SCSI revision: 02
>   Vendor: MICROP    Model: 2112              Rev: 4024
>   Type:   Direct-Access                      ANSI SCSI revision: 02
>   Vendor: SEAGATE   Model: ST31200N          Rev: 8714
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Detected scsi disk sda at scsi0, channel 0, id 5, lun 0
> Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
> SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)
> Partition check:
>  sda: unknown partition table
> SCSI device sdb: 2051460 512-byte hdwr sectors (1050 MB)
>  sdb: sdb1 sdb2 sdb3
> Detected scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
> 
> I have 2 disks which are connected to fast wide SCSI but they are not
> recognized by the kernel.
> 
> I am installing the system on /dev/sdb
> 
> When i got the message , I have waited for more than 30 min .

Can you try adding   sim700=noneg:0xff,nodisc:0xff   to the boot params
please.  Say 'yes' to the interact with IPL question if that machine
gives you one, else perhaps append 'isl' to the bo command.  Then just
modify one of the existing params to append that string.

Richard

> Boyan
> 
> Richard Hirst wrote:
> > 
> > On Sun, Sep 09, 2001 at 07:14:05PM +0200, Boyan Lazarov wrote:
> > > Hi ,
> > > I am trying to install linux on Apollo 735 . The system boots normally (
> > > serial console, from cd image 0.9.2) . When i reach the point to install
> > > the kernel  and the modules , the installer starts the installation and
> > > gives message
> > > ioctl: LOOP_CLR_FD: No such device or address
> > 
> > The installer gives that message for everyone, but normally it
> > immediately continues with the install.  What disks are you trying
> > to install on to?  I don't believe the internal wide scsi disks
> > are supported atm, but people have installed on to external narrow
> > disks.
> > 
> > Richard
> 




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From: Boyan Lazarov <bsl@mek.dtu.dk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Installing on Apollo 735
Date: Mon, 10 Sep 2001 14:04:53 +0200
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The system just stop 
The boot parameters are :
0: 0/vmlinux
 1: root=/dev/ram
 2: initrd=0/ramdisk
 3: console=ttyS0
 4: TERM=vt102
 5: sim700=noneg:0xff,nodisc:0xff
 6: isl

And the output is:
SCSI subsystem driver Revision: 1.00 
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: PLEXTOR   Model: CD-ROM PX-32TS    Rev: 1.02
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi0: Unable to abort command for target 5
scsi0: Unable to send Bus Device Reset for target 5
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 07875060 (script[0x1418]), dsps = 078751f0, target = 0
scsi0: Failing command for ID5
  Vendor: SEAGATE   Model: ST31200N          Rev: 8714
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 6, lun 0

After this the system just stops

Boyan
Richard Hirst wrote:
> 
> On Mon, Sep 10, 2001 at 10:03:27AM +0200, Boyan Lazarov wrote:
> > This is the output:
> >
> > SCSI subsystem driver Revision: 1.00
> > sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
> > scsi0: Revision 0x0
> > scsi0: test 1 completed ok.
> > scsi0 : LASI/Simple 53c7xx
> >   Vendor: PLEXTOR   Model: CD-ROM PX-32TS    Rev: 1.02
> >   Type:   CD-ROM                             ANSI SCSI revision: 02
> >   Vendor: MICROP    Model: 2112              Rev: 4024
> >   Type:   Direct-Access                      ANSI SCSI revision: 02
> >   Vendor: SEAGATE   Model: ST31200N          Rev: 8714
> >   Type:   Direct-Access                      ANSI SCSI revision: 02
> > Detected scsi disk sda at scsi0, channel 0, id 5, lun 0
> > Detected scsi disk sdb at scsi0, channel 0, id 6, lun 0
> > SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)
> > Partition check:
> >  sda: unknown partition table
> > SCSI device sdb: 2051460 512-byte hdwr sectors (1050 MB)
> >  sdb: sdb1 sdb2 sdb3
> > Detected scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
> >
> > I have 2 disks which are connected to fast wide SCSI but they are not
> > recognized by the kernel.
> >
> > I am installing the system on /dev/sdb
> >
> > When i got the message , I have waited for more than 30 min .
> 
> Can you try adding   sim700=noneg:0xff,nodisc:0xff   to the boot params
> please.  Say 'yes' to the interact with IPL question if that machine
> gives you one, else perhaps append 'isl' to the bo command.  Then just
> modify one of the existing params to append that string.
> 
> Richard
> 
> > Boyan
> >
> > Richard Hirst wrote:
> > >
> > > On Sun, Sep 09, 2001 at 07:14:05PM +0200, Boyan Lazarov wrote:
> > > > Hi ,
> > > > I am trying to install linux on Apollo 735 . The system boots normally (
> > > > serial console, from cd image 0.9.2) . When i reach the point to install
> > > > the kernel  and the modules , the installer starts the installation and
> > > > gives message
> > > > ioctl: LOOP_CLR_FD: No such device or address
> > >
> > > The installer gives that message for everyone, but normally it
> > > immediately continues with the install.  What disks are you trying
> > > to install on to?  I don't believe the internal wide scsi disks
> > > are supported atm, but people have installed on to external narrow
> > > disks.
> > >
> > > Richard
> >




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Installing on Apollo 735
Date: Mon, 10 Sep 2001 13:41:34 +0100
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To: Boyan Lazarov <bsl@mek.dtu.dk>
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Xref: news.gmane.org gmane.linux.ports.parisc:12163

On Mon, Sep 10, 2001 at 02:04:53PM +0200, Boyan Lazarov wrote:
> The system just stop 
> The boot parameters are :
> 0: 0/vmlinux
>  1: root=/dev/ram
>  2: initrd=0/ramdisk
>  3: console=ttyS0
>  4: TERM=vt102
>  5: sim700=noneg:0xff,nodisc:0xff
>  6: isl
> 
> And the output is:
> SCSI subsystem driver Revision: 1.00 
> sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
> scsi0: Revision 0x0
> scsi0: test 1 completed ok.
> scsi0 : LASI/Simple 53c7xx
>   Vendor: PLEXTOR   Model: CD-ROM PX-32TS    Rev: 1.02
>   Type:   CD-ROM                             ANSI SCSI revision: 02
> scsi0: Unable to abort command for target 5
> scsi0: Unable to send Bus Device Reset for target 5
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
> scsi0: dsp = 07875060 (script[0x1418]), dsps = 078751f0, target = 0
> scsi0: Failing command for ID5
>   Vendor: SEAGATE   Model: ST31200N          Rev: 8714
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Detected scsi disk sda at scsi0, channel 0, id 6, lun 0
> 
> After this the system just stops

That's not good.  Can you try with just   sim700=nodisc:0xff
please.

Richard





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From: Boyan Lazarov <bsl@mek.dtu.dk>
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Subject: Re: [parisc-linux] Installing on Apollo 735
Date: Mon, 10 Sep 2001 14:55:32 +0200
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The same problem as before.
The cd-rom is on the scsi bus , can this be the problem.
At the beginning the kernel gives message for the devices and it
recognizes two scsi 
3. Outfield Core SCSI (10) at 0xf0825000, versions 0x9, 0x0, 0x71, 0x0,
0x04
9. Outfield FW SCSI (10) at 0xf0830000, versions 0x9, 0x0, 0x7c, 0x0,
0x0
but the second one is not configured.

Regards
Boyan

Richard Hirst wrote:
> 
> On Mon, Sep 10, 2001 at 02:04:53PM +0200, Boyan Lazarov wrote:
> > The system just stop
> > The boot parameters are :
> > 0: 0/vmlinux
> >  1: root=/dev/ram
> >  2: initrd=0/ramdisk
> >  3: console=ttyS0
> >  4: TERM=vt102
> >  5: sim700=noneg:0xff,nodisc:0xff
> >  6: isl
> >
> > And the output is:
> > SCSI subsystem driver Revision: 1.00
> > sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
> > scsi0: Revision 0x0
> > scsi0: test 1 completed ok.
> > scsi0 : LASI/Simple 53c7xx
> >   Vendor: PLEXTOR   Model: CD-ROM PX-32TS    Rev: 1.02
> >   Type:   CD-ROM                             ANSI SCSI revision: 02
> > scsi0: Unable to abort command for target 5
> > scsi0: Unable to send Bus Device Reset for target 5
> > scsi0: Unable to do SCSI bus reset
> > scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> > scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
> > scsi0: dsp = 07875060 (script[0x1418]), dsps = 078751f0, target = 0
> > scsi0: Failing command for ID5
> >   Vendor: SEAGATE   Model: ST31200N          Rev: 8714
> >   Type:   Direct-Access                      ANSI SCSI revision: 02
> > Detected scsi disk sda at scsi0, channel 0, id 6, lun 0
> >
> > After this the system just stops
> 
> That's not good.  Can you try with just   sim700=nodisc:0xff
> please.
> 
> Richard




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Installing on Apollo 735
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To: Boyan Lazarov <bsl@mek.dtu.dk>
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Xref: news.gmane.org gmane.linux.ports.parisc:12165

On Mon, Sep 10, 2001 at 02:55:32PM +0200, Boyan Lazarov wrote:
> The cd-rom is on the scsi bus , can this be the problem.

It shouldn't be a problem, but you could try mounting the CD on
a server and then installing via nfs or http, so only one device is
active on the the scsi bus.

> At the beginning the kernel gives message for the devices and it
> recognizes two scsi 
> 3. Outfield Core SCSI (10) at 0xf0825000, versions 0x9, 0x0, 0x71, 0x0,
> 0x04

That is the one you are using.

> 9. Outfield FW SCSI (10) at 0xf0830000, versions 0x9, 0x0, 0x7c, 0x0,
> 0x0
> but the second one is not configured.

Right, it is not supported in the kernel atm.

Richard





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From: "Stephen C. Tweedie" <sct@redhat.com>
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Subject: [parisc-linux] Re: ext3+parisc kernel
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To: Timothy Ball <timball@tux.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:12166

Hi,

On Sat, Sep 08, 2001 at 05:49:14PM -0400, Timothy Ball wrote:

> I got ext3 from the cvs, and the parisc 2.4.9-pa17 kernel and I've
> patched the parisc kernel w/ the add-to-kernel.sh script. after a bit of
> fighting I got the kernel to compile. ...
> 
> Now when I boot. /proc is not mounted at boot, and when I mount it all
> the files in /proc appear to be directories.

Odd --- did you do a make clean before rebuilding?

--Stephen




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From: "BLESSING,MICHAEL (HP-FtCollins,ex1)" <mblessing@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Getting a CD?
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Hi,

The following e-mail was sent into the HP Developer's Resource web site (
http://devresource.hp.com ).  They are having an installation problem and
have a question about getting a CD.  Can you help them out?

Thanks,
Mike Blessing
HP Developer's Resource



-----Original Message-----
From: stefan.bieri@garaventa.com [mailto:stefan.bieri@garaventa.com]
Sent: Tuesday, September 11, 2001 5:15 AM
To: webmasterdevrsrc@shelty.fc.hp.com
Subject: DevResource Feedback: Tuesday, 11-Sep-2001 05:14:22 MDT


Below is the result of your feedback form.  It was submitted by:
     (stefan.bieri@garaventa.com)
    on Tuesday, September 11, 2001 at 05:15:22
---------------------------------------------------------------------------

Referring_Page:
http://www.devresource.hp.com/devresource/Topics/Linux/PALinuxRelease.html

topic: Other

YourName: Bieri Stefan

Comments: Hi

We tried to install PARISC-Linux on a HP Workstation 715/100 with XFree86,
X-Server-System etc. The problems we have, is, that we download the packages
on a Win2k pc and everytime we try to install the X-Window-System, we have
some problems with the dependency and we have to download also this packages
(those who are needed, because of the dependency), and then when we try to
install again, we have another dependency problems, etc. and that
continues...

The question we have, is it possible to download (other cd-images than the
installation cd) or buy a full distribution of the PARISC-Linux?

---------------------------------------------------------------------------




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From: rbradetich@uswest.net (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ccio-dma error
Date: Wed, 12 Sep 2001 07:03:37 -0600
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Cc: parisc-linux@lists.parisc-linux.org
To: Randall Craig <randall@tdl.com>
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Wed Sep 12 07:03:41 2001
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On Mon, Sep 10, 2001 at 01:25:02AM -0700, Randall Craig wrote:
> My computer frequently crashes with the error message:
> 
>  Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping resource

This error occurs when the ccio driver can not find adequate space in the resource
map to complete the dma mapping.  Since you are seeing it frequently, try changing
the following line in arch/parisc/kernel/ccio-dma.c to see if that helps:

From:
	static unsigned long ccio_mem_ratio = 32;
To:
	static unsigned long ccio_mem_ratio = 4;

You can also look at the the 2 /proc file entries to get an idea what is going
on: 

	/proc/bus/runway/ccio
	/proc/bus/runway/ccio-bitmap

The /proc/bus/runway/ccio should give you general information about the hardware
and driver.  The /proc/bus/runway/ccio-bitmap should give you an idea of how dense
the resource bitmap is.

Hopefully this will help you out.

- Ryan


> 
> This is with kernel pa17.
> 
> 
> This occurs during medium to heavy io. 
> 
> 
> 
> This has also caused my /var/lib/dbkg directory to be missing.
> 
> How can I rebuild it?
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 

-- 




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From: Martin Schulze <joey@finlandia.infodrom.north.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Invitation to the 6th Linux Developers Meeting in Oldenburg
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              -----------------------------------------
	      6th Linux Developers Meeting in Oldenburg


	       Thursday, September 27th to Sunday, 30th


		   University of Oldenburg, Wechloy
              -----------------------------------------


This is the public invitation for Linux developers to attend this
years' Linux Developers Meeting in Oldenburg.  The scope of this
meeting is to port Linux to non-intel architectures. It is derived
from the linux/m68k meeting 1995 in Solingen , though, recently there
were a lot of other architectures as well.

Just like the last years, the purpose of this meeting is to get as
much of the Linux/m68k core developers and active users together to
discuss current problems, show off projects, exchange news, and
generally to have fun.

Like last year, the meeting will take place from thursday afternoon
(September 27th) to sunday evening (September 30th).  You don't have
to attend from thursday, it's an offer for those of you who would like
to and who can afford coming early.  If you can't make it that early,
just join when you can afford it.  The meeting will take place at the
same place like last year (that is University of Oldenburg, Wechloy).

For those of you, who don't know Oldenburg yet, it's in the northern
part of Germany.  That means, you'll find lots of green areas (trees,
meadows etc.), good air and less industries.  The meeting will be held
at the science building of the University of Oldenburg, in Oldenburg
Wechloy.

If you would like to attend the meeting, please send back this form,
so I can calculate space, power, food and stuff.  Space, power and
connectivity will thankfully be sponsored by the University, food and
stuff will be sponsored by ffis e.V., except dinner in restaurants.
We will be able to use showers inside of the sport building.

You'll need to take with you these things: machines, monitors,
technical documentation (very important), enough triple plugs for your
machines, some network cabling, some hubs/switches, sleeping bag, air
mattress, towel, shower stuff, plate, cutlery, coffee mug.

Comprehensive Information are on the web:
http://oldenburger.linuxtage.de/Oldenburg2001/


Regards,

        Joey

---------- 8< ---------- 8< ---------- 8< ---------- 8< ----------

Linux Developer's Meeting in Oldenburg 2001 - Sept 27th - 30th

Name  :
E-Mail:

I'd like to attend on these days:

    [ ] Thursday, September 27th
    [ ] Friday, September 28th
    [ ] Saturday, September 29th
    [ ] Sunday, September 30th

    Dinner will be from 7pm - 9pm or something.  If you plan to arrive
    within this period, make sure you know how to reach me mobile.

Number of machines ...........:
Number of monitors ...........:

Name may be placed on web page: ( ) yes
                                ( ) no

---------- 8< ---------- 8< ---------- 8< ---------- 8< ----------

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From - Thu Nov 08 21:19:11 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Getting a CD?
Date: Wed, 12 Sep 2001 19:10:50 +0100
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To: "BLESSING,MICHAEL (HP-FtCollins,ex1)" <mblessing@hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:12170

We haven't attempted to make a full CD available.  Partly this is because
it'd be a lot of effort to add all the packages that people might want,
and the result would be huge (an estimated 4-5 CDs currently).  Another
reason is that the packages are constantly being updated right now, and
any CD we produced would be out of date the following day.  We decided
to only produce an install CD and let people upgrade that themselves.

hppa will be one of the architectures released with Woody, so Debian
will produce CD images then.  Woody is scheduled to release in December.

On Tue, Sep 11, 2001 at 11:25:17AM -0700, BLESSING,MICHAEL (HP-FtCollins,ex1) wrote:
> Hi,
> 
> The following e-mail was sent into the HP Developer's Resource web site (
> http://devresource.hp.com ).  They are having an installation problem and
> have a question about getting a CD.  Can you help them out?
> 
> Thanks,
> Mike Blessing
> HP Developer's Resource
> 
> 
> 
> -----Original Message-----
> From: stefan.bieri@garaventa.com [mailto:stefan.bieri@garaventa.com]
> Sent: Tuesday, September 11, 2001 5:15 AM
> To: webmasterdevrsrc@shelty.fc.hp.com
> Subject: DevResource Feedback: Tuesday, 11-Sep-2001 05:14:22 MDT
> 
> 
> Below is the result of your feedback form.  It was submitted by:
>      (stefan.bieri@garaventa.com)
>     on Tuesday, September 11, 2001 at 05:15:22
> ---------------------------------------------------------------------------
> 
> Referring_Page:
> http://www.devresource.hp.com/devresource/Topics/Linux/PALinuxRelease.html
> 
> topic: Other
> 
> YourName: Bieri Stefan
> 
> Comments: Hi
> 
> We tried to install PARISC-Linux on a HP Workstation 715/100 with XFree86,
> X-Server-System etc. The problems we have, is, that we download the packages
> on a Win2k pc and everytime we try to install the X-Window-System, we have
> some problems with the dependency and we have to download also this packages
> (those who are needed, because of the dependency), and then when we try to
> install again, we have another dependency problems, etc. and that
> continues...
> 
> The question we have, is it possible to download (other cd-images than the
> installation cd) or buy a full distribution of the PARISC-Linux?
> 
> ---------------------------------------------------------------------------
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
Revolutions do not require corporate support.




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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Getting a CD?
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Should anyone outside HP want to build the full 5 CD set, the new 
ftp.linux.org.uk box which should be online RSN will have space and
bandwidth to host it




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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] Further serial changes -- PLEASE TEST
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Richard reports the serial ports on his B180 are still swapped.  I
think I understand why and the following patch should fix it as well
as several other B/C/J `hundred' class machines.  It might also fix
the A180 (is this broken without the patch?  I haven't seen reports).

Please test this patch if you have one of the above machines.  This
mess might've been avoided if more people had tested the parisc_device
patch.

Index: drivers/gsc/serial.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/gsc/serial.c,v
retrieving revision 1.20
diff -u -p -r1.20 serial.c
--- serial.c	2001/08/31 02:00:49	1.20
+++ serial.c	2001/09/12 22:32:40
@@ -97,23 +97,16 @@ static struct parisc_device_id serial_tb
  * only on those machines.  This needs to get fixed properly somehow.
  */
 static struct parisc_device_id serial1_tbl[] = {
-	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x019, 0x0008C }, /* B180L+ */
-	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x022, 0x0008C }, /* B132L+ */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03B, 0x0008C }, /* C1xx/C1xxL */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03C, 0x0008C }, /* B132L */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03D, 0x0008C }, /* B160L */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03E, 0x0008C }, /* B132L+ */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03F, 0x0008C }, /* B180L+ */
-	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x040, 0x0008C }, /* B132L */
-	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x041, 0x0008C }, /* B160L */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x046, 0x0008C }, /* Rocky2 120 */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x047, 0x0008C }, /* Rocky2 150 */
-	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x048, 0x0008C }, /* Rocky2 120 */
-	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x049, 0x0008C }, /* Rocky2 150 */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x04E, 0x0008C }, /* Kiji L2 132 */
-	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x04F, 0x0008C }, /* Kiji L2 132 */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x056, 0x0008C }, /* Raven+ */
-	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x05F, 0x00081 }, /* A-class 180 */
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x05F, 0x0008C }, /* A-class 180 */
 	{ 0 }
 };
 

-- 
Revolutions do not require corporate support.




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From: Bent Wagner <psy@get2net.dk>
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Subject: [parisc-linux] keyboard patch ok on 725-100
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>To: marteaut@esiee.fr, rhirst@linuxcare.com, willy@debian.org
>Cc: parisc-linux@lists.parisc-linux.org, debian-hppa@lists.debian.org
>From: "=?iso-8859-1?Q?Jo=EBl_Soete?=" <jso@europay.com>
>Date: Wed, 5 Sep 2001 15:01:08 +0200
>Subject: [parisc-linux] Thomas Marteau kbd patch adapted.
>
>--0__=C1256ABE0044855E8f9e8a93df938690918cC1256ABE0044855E
>Content-type: text/plain; charset=us-ascii
>
>Dear all,
>
>I just adapt the patch keyboard of Thomas taking account of kernel
>update, reports of experiences of Richard.
>I can only test it against 2.4.9-pa14 (cvs update) and seems to work as
>well as with 712 as with b180 model
>(unplug, replug: ok with hp kbd; Caps lock do not hang the "system")
>
>In the hope to be helpful,
>     Joel


I have tested the patch on a 725-100 using a 2.4.9 -pa17 kernel, and
it really made my day.

First time i have used the keyboard since i installed linux on it
0.5, i think, was the first.

Glad i got that terminal with my MicroVax :-)

Now i just need to get that EISA 100VG  netcard running.

Greetings

Bent Wagner
psy@get2net.dk






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From: Bent Wagner <psy@get2net.dk>
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Hello all

I have some 725-100 boxes, but no AUI to rj45 adapters.

I have a HUB with an AUI connector on it.

Can i connect those two without using adapters, and if so
how should the cable be wired?

It seems odd to me that you should put adapters between the
machine and the HUB. Why not make it a BNC or rj45 instead?

I do have a netcard, a 100VG but it gives compiler errors
if i select it in the kernel configuration.



Bent Wagner
psy@get2net.dk







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From: Mattias Wadenstein <maswan@acc.umu.se>
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On Thu, 13 Sep 2001, Bent Wagner wrote:

>
> Hello all
>
> I have some 725-100 boxes, but no AUI to rj45 adapters.
>
> I have a HUB with an AUI connector on it.
>
> Can i connect those two without using adapters, and if so
> how should the cable be wired?

http://www.hardwarebook.net/cable/network/aui2aui.html

(Just a small plug for a local project :) )

> It seems odd to me that you should put adapters between the
> machine and the HUB. Why not make it a BNC or rj45 instead?

BNC or (most) rj45 cables handles distances better, I think. But AUI is
universal, there are adapters from that to the other media formats
(including thick coax). I think that is the explanation.

/Mattias Wadenstein





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>>>>> "Bent" == Bent Wagner <psy@get2net.dk> writes:

Bent> I have some 725-100 boxes, but no AUI to rj45 adapters.

Bent> I have a HUB with an AUI connector on it.

Bent> Can i connect those two without using adapters, and if so how
Bent> should the cable be wired?

http://www.cisco.com/warp/public/779/smbiz/service/knowledge/pinouts/aui.htm


Bent> It seems odd to me that you should put adapters between the
Bent> machine and the HUB. Why not make it a BNC or rj45 instead?

AUI was the standard ethernet interface many years ago.  It had the
advantage that you could connect a suitable transceiver depending on
your network type (thick, thin, RJ45, fibre).

There's a similar media-independent interface for Fast Ethernet called
MII.  You'll find that on a lot of high-end equipment.

-- 
Martin K. Petersen      Cereal Bowl Engineer, Linuxcare, Inc.
http://mkp.net/         SGI XFS, Linux/PA-RISC, GNOME




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Further serial changes -- PLEASE TEST
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On Wed, Sep 12, 2001 at 11:42:08PM +0100, Matthew Wilcox wrote:
> 
> Richard reports the serial ports on his B180 are still swapped.  I
> think I understand why and the following patch should fix it as well
> as several other B/C/J `hundred' class machines.  It might also fix
> the A180 (is this broken without the patch?  I haven't seen reports).

B180 is now ok.
C360 was ok anyway, and still is.


715/old orders its serial ports correctly, but as they are

6. Scorpio Sr. Core RS-232 (10) at 0xf0823000, versions 0x19, 0x0, 0x75
7. Scorpio Sr. Core RS-232 (10) at 0xf0822000, versions 0x19, 0x0, 0x75

I guess we are just lucky.  0xf0823000 is ttyS0, btw.


My 712 has
5. Gecko 100 Core RS-232 (10) at 0xf0105000, versions 0x1d, 0x0, 0x8c, 0x0, 0x0
13. Gecko Optional RS-232 (10) at 0xf0505000, versions 0x18, 0x0, 0x8c, 0x0, 0x0

It does put 0xf0105000 as ttyS0 as it should, but I guess there
should be an entry for 0x1d, 0x8c in serial1_tbl[] really?

Richard





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On Thu, Sep 13, 2001 at 11:28:35AM +0100, Richard Hirst wrote:
> B180 is now ok.
> C360 was ok anyway, and still is.

Excellent!  Thanks for testing.

> 715/old orders its serial ports correctly, but as they are
> 
> 6. Scorpio Sr. Core RS-232 (10) at 0xf0823000, versions 0x19, 0x0, 0x75
> 7. Scorpio Sr. Core RS-232 (10) at 0xf0822000, versions 0x19, 0x0, 0x75
> 
> I guess we are just lucky.  0xf0823000 is ttyS0, btw.
> 
> 
> My 712 has
> 5. Gecko 100 Core RS-232 (10) at 0xf0105000, versions 0x1d, 0x0, 0x8c, 0x0, 0x0
> 13. Gecko Optional RS-232 (10) at 0xf0505000, versions 0x18, 0x0, 0x8c, 0x0, 0x0
> 
> It does put 0xf0105000 as ttyS0 as it should, but I guess there
> should be an entry for 0x1d, 0x8c in serial1_tbl[] really?

The way I look at this is that the serial ports really _ought_ to be
listed in the right order.  This is a table of exceptions to cope with
the few cases where that's not true.

-- 
Revolutions do not require corporate support.




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On Thu, Sep 13, 2001 at 12:28:31AM +0200, Bent Wagner wrote:
> I do have a netcard, a 100VG but it gives compiler errors
> if i select it in the kernel configuration.

In your other message you mention it's EISA.  This is unlikely to work
yet; I now have the docs, but it's likely to be some time before I get
round to working on it (I'm away from my desk until the start of October).

-- 
Revolutions do not require corporate support.




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On Thu, Sep 13, 2001 at 01:51:32PM +0100, Matthew Wilcox wrote:
> On Thu, Sep 13, 2001 at 12:28:31AM +0200, Bent Wagner wrote:
> > I do have a netcard, a 100VG but it gives compiler errors
> > if i select it in the kernel configuration.

Ah, it uses isa_readl, et al.  So either we implement those functions or
just port the driver to use ioremap + readl.  I believe that the isa_*
functions are going away in 2.5, so we may as well port this driver.
As I say though, the WAX EISA adapter driver is mostly unwritten at this
point, so you'll have to wait a few weeks before it's done.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:19:11 2018
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Subject: [parisc-linux] [Bieri Stefan <Stefan.Bieri@garaventa.com>] AW: AW: AW: PARISC-Linux
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--=-=-=

I am now out of my depth...  anyone else want to jump in and help?

Bdale



--=-=-=
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From: Bieri Stefan <Stefan.Bieri@garaventa.com>
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Hi,

I have installed now the parisc-linux with X-Window System. The Problem I
have, I've got a hp hil keyboard, that don't function without problems. i've
got a german layout. the problem i have, the "i" and the "o" keys do not
function.

Can you help me ?

Best regards,
Bieri Stefan
GARAVENTA AG

-----Urspr=FCngliche Nachricht-----
Von: Bdale Garbee [mailto:bdale@gag.com]
Gesendet: Mittwoch, 12. September 2001 17:35
An: Bieri Stefan
Betreff: Re: AW: AW: PARISC-Linux


Bieri Stefan <Stefan.Bieri@garaventa.com> writes:

> I have only one question: how du I start the apt toolset ?

You can either use apt-get on the command, line or for a new install, I=20
suggest using 'dselect' and picking the apt mode.

Bdale



--=-=-=--




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From: Bieri Stefan <Stefan.Bieri@garaventa.com>
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Hi,

I have installed the parisc-linux with X-Window System. The Problem I =
have,
I've got a hp hil keyboard, that don't function without problems. I =
have a
german layout. the problem I have, the "i" and the "o" keys do not =
function.

Can you help me ?

Best regards,
Bieri Stefan
GARAVENTA AG


> Mit freundlichen Gr=FCssen
> GARAVENTA AG
> Stefan Bieri
>=20
> Telefon:	+41 41 859 11 11
> Telefon (direkt):	+41 41 859 11 61
> Fax:		+41 41 859 11 00
> Email:		stefan.bieri@garaventa.com
>=20
> Besuchen Sie uns doch auf dem Internet unter:
> http://www.garaventa.com
>=20




From - Thu Nov 08 21:19:11 2018
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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: [parisc-linux] Glibc2.2.4-1
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M,

Just a quick update. I've been recently inundated with the start of
school and phazing life back into a fast flowing stream is never easy ;)

Recent progression:

I finally built the full toolchain.

- Latest Binutils
- Latest GCC
- Latest Glibc 2.2.4-1

Carried out all the 0list patches by hand, in order.

x glibc-vs-gcc3
x db1-addon-enabler
x manual-texinfo4
x ldd
x glibcbug
x hurd-ldflags
x fhs-linux-paths
x pthread_create-manpage
x string2-pointer-arith
x glibc22-nss-upgrade
x glibc22-getaddrinfo
- glibc22-hppa
./sysdeps/ia64/dl-fptr.c.rej

x glibc22-eo_EO
x glibc22-m68k-compat
x glibc22-m68k-fpic
x glibc22-locales
x sparc64-fixups
x glibc22-fts
x glibc22-getdents-fix

It looks like ./sysdeps/ia64/dl-fptr.c is completely different!
I get 7 hunks failed on that file. All the reentrant ifdef's are
gone, and the structure of the file is totally different.

I've ignored those patch failures since there was no visible way
to merge them.

I also installed linuxthreads and the db1 addon.
Which mandated some minor changes to a few header includes for db1 :}

I've compiled 2.4.9-pa16 with the toolchain, and for the first time
ever... I saw a small framebuffer penguin... and it almost brought
me to tears ;)

I have 712/60's and 715/50's running the newer kernel. All of them
are doing much better, and running far faster than ever before.

-----------------------------------------------------
On to testing and building the deb for glibc 2.2.4-1
-----------------------------------------------------

I tried to apt-get -f dist-upgrade
Which again failed on "trying to install a non-directory"
(No segfaults this time around)

For future referance, you can fix this by creating a dummy directory
with the name of the directory that you are failing with.

I've fully apt-get'd my 712/60 from the baseplus tarball with
no apparent problems.

Though lately ksoftirqd seems to eat ~99% of my CPU on idle.

---

Anything I should watch for when building the deb for glibc 2.2.4-1?
It may take quite a while on my 712/60.

I'll get back you when I've finished and tested.

Cheers,
Carlos.




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On Fri, Sep 14, 2001 at 11:23:53AM -0400, Carlos O'Donell Jr. wrote:
> It looks like ./sysdeps/ia64/dl-fptr.c is completely different!
> I get 7 hunks failed on that file. All the reentrant ifdef's are
> gone, and the structure of the file is totally different.
> 
> I've ignored those patch failures since there was no visible way
> to merge them.

Yep, I just ignored it for the moment.  The morally-equivalent change
will have to be made to that file to eliminate testandset, but it's
irrelevant to getting glibc working.

> I've compiled 2.4.9-pa16 with the toolchain, and for the first time
> ever... I saw a small framebuffer penguin... and it almost brought
> me to tears ;)
> 
> I have 712/60's and 715/50's running the newer kernel. All of them
> are doing much better, and running far faster than ever before.
> 
> Though lately ksoftirqd seems to eat ~99% of my CPU on idle.

You need to upgrade to latest CVS -- Richard found & fixed that problem.

> Anything I should watch for when building the deb for glibc 2.2.4-1?
> It may take quite a while on my 712/60.

Yes, when we tried a few weeks ago, glibc 2.2.3-9 would no longer build
with the gcc in the archive.  So we need gcc to be updated before we
can hope to build 2.2.4-1.

-- 
Revolutions do not require corporate support.




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	parisc-linux@parisc-linux.org
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In-Reply-To: Message from "Carlos O'Donell Jr." <carlos@megatonmonkey.net> 
   of "Sat, 08 Sep 2001 15:29:13 EDT." <20010908152913.B9613@megatonmonkey.net>
Xref: news.gmane.org gmane.linux.ports.parisc:12185

"Carlos O'Donell Jr." writes...

> > Hi palinux people,
> > 
> > ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-20010905.tar.g
> z
> > 
> > Untar it from / it lives in /opt/palinux/
> > Report any problems to the list.

Oops! The message you just posted made me realize I never responded to this 
message. Sorry.

I used

- binutils upstream
- pehc gcc
- glibc I got from willy (debian 2.2.4 source + things willy hasn't added?)
- glibc headers from current debian hppa glibc package
- kernel headers from pehc
- autobuilder from pehc:build-tools/palinux-autobuilder (cvs up turned off)

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP-Hil Keyboard
Date: Fri, 14 Sep 2001 20:41:42 +0200
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To: Bieri Stefan <Stefan.Bieri@garaventa.com>,
	"'parisc-linux@lists.parisc-linux.org'" <parisc-linux@lists.parisc-linux.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:12186

Hi Stefan,

This is a known problem, into which nobody has looked yet.
Maybe you want to investigate yourself and report us the bug ?
I assume it's a bug somewhere in the X keyboard tables...

Furthermore the current X fbdev-driver has a bug with the color-table
(palette) which aren't solved yet either :-(

Helge

On Friday 14 September 2001 10:22, Bieri Stefan wrote:
> Hi,
>
> I have installed the parisc-linux with X-Window System. The Problem I have,
> I've got a hp hil keyboard, that don't function without problems. I have a
> german layout. the problem I have, the "i" and the "o" keys do not
> function.
>
> Can you help me ?
>
> Best regards,
> Bieri Stefan
> GARAVENTA AG
>
> > Mit freundlichen Grssen
> > GARAVENTA AG
> > Stefan Bieri
> >
> > Telefon:	+41 41 859 11 11
> > Telefon (direkt):	+41 41 859 11 61
> > Fax:		+41 41 859 11 00
> > Email:		stefan.bieri@garaventa.com
> >
> > Besuchen Sie uns doch auf dem Internet unter:
> > http://www.garaventa.com
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] The keyboard...
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Hi all,

	I'm sorry but this message is not a new release :( Anyway, since I
can't get access to parisc-linux.org, I would like to know if someone
could confirm me that this is a good behaviour:

In boot_admin, you hit some keys and then you hit Esc. After that, the
console do not print any more characters. You have to hit Enter key to
get back to a new command line and you can do anything then.

Thanks for answering to this, Thomas
ESIEE Team

PS: Since I can't read from p-l.org, could reply to debian mailing-list.




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: [parisc-linux] Re: How to create a Install CD
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   of "Fri, 14 Sep 2001 16:34:32 EDT." <580F4ACFCD8F4E439B06B815110418C788509A@xcup03.cup.hp.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:12188

"DANDEBOYINA,NAGARAJ (Non-HP-Cupertino,ex1)" wrote:
> Hi There,
>    I downloaded 0.9.2 CD Install ISO file from
> http://parisc-linux.org/release-0.9/index.html and I wrote a CD,but I failed
> to run installer on my A500 system.Is there any trick to create the CD.

Not that I'm aware of. Typical problems include MS OS's corrupting
the download - check the md5sum output.

> If it
> is there can you send me the proper procedure and software links which are
> helpful to write a cd.

The mail archive on http://lists.parisc-linux.org is worth searching.

>    How about getting LILO equilent for PA-RISC system when we are writing
> bootable CD?

Look for PALO - it is the LILO equivalent for parisc.
See  http://puffin.external.hp.com/cgi-bin/cvsview/palo/

grant




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From: Tom <palinux@alaskatech.org>
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Subject: [parisc-linux] Odd X display
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Xref: news.gmane.org gmane.linux.ports.parisc:12189

First of all, big thanks to all for the latest patches to the kernel. It
appears that my 715/100 is *finally* completely working - keyboard
included. Even XF86 works now, except for a weird display. It appears that
the color depth or refresh is wrong, but I'm not sure how it can be. The
monitor is a HP A1097C, 1280x1024x8, 78.125/72.008 h/v refresh. I'm using
fbdev for the driver, the boot shows that as the detected frame buffer...
But I get a semi-scrambled display. (Not like I'm out of refresh, more
like the color depth is wrong...) Unreadable, no mouse... I thought at
first I had a bad window manager, but it happens with KDE, icewm,
enlightenment and fvwm95.

My config and boot can be seen at ftp://ftp.alaskatech.org/XF86Config-4
and ftp://ftp.alaskatech.org/dmesg.txt if they'll help. I don't recall
anything like this being posted on here yet, so I'm thinking it's
something in my config that's wrong, and that I don't recognize since most
of what I do is x86, not PA-RISC...

Any help much appreciated.





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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Odd X display
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To: Tom <palinux@alaskatech.org>,
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Xref: news.gmane.org gmane.linux.ports.parisc:12190

Hi Tom,

On Saturday 15 September 2001 08:08, Tom wrote:
> First of all, big thanks to all for the latest patches to the kernel. It
> appears that my 715/100 is *finally* completely working - keyboard
> included. Even XF86 works now, except for a weird display. It appears that
> the color depth or refresh is wrong, but I'm not sure how it can be. The
> monitor is a HP A1097C, 1280x1024x8, 78.125/72.008 h/v refresh. I'm using
> fbdev for the driver, the boot shows that as the detected frame buffer.

The current XF86 fbdev driver has a bug, which seems to not initialize 
the color-table correctly (at least on PA). If you start for example xmag 
and xgalaga at the same time and then switch between the windows 
you will get the correct colors.
Furthermore support for the HIL mouse is still missing, but you
may use an old serial mouse and use it instead for now.
Some PA machines have PS/2 mouse and keyboards, which I
think will work correctly. I don't have such a machine so that I really
can't confirm this.

> .... I don't recall
> anything like this being posted on here yet, so I'm thinking it's
> something in my config that's wrong, and that I don't recognize since most
> of what I do is x86, not PA-RISC...

It has been posted a few times already, but I think someone should
maybe report it upstream at some point...

Helge


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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Getting up and running
Date: Sat, 15 Sep 2001 18:00:47 +0100
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Cc: Matthew Wilcox <willy@debian.org>, parisc-linux@parisc-linux.org
To: Albert Strasheim <fullung@ilink.nis.za>
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On Sat, Sep 15, 2001 at 03:24:07PM +0200, Albert Strasheim wrote:
> Is someone actively working on this? I would only be too happy to help
> test any patches on this machine.

How does this look?  I can't test it because I don't have a 720-era machine,
but it ought to work, I think...

Index: traps.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/traps.c,v
retrieving revision 1.52
diff -u -p -r1.52 traps.c
--- traps.c	2001/09/06 09:44:07	1.52
+++ traps.c	2001/09/15 16:52:13
@@ -322,6 +322,11 @@ void handle_interruption(int code, struc
 		fault_address = regs->ior;
 		parisc_terminate("Non access data tlb fault!",regs,code,fault_address);
 
+	case 18: /* PCX-S processors don't use 26, 27, 28 */
+		if (regs->ior & 3)
+			goto unaligned_d_access;
+		/* Fall through */
+
 	case 15:
 	case 26:
 		fault_address = regs->ior;
@@ -416,7 +421,8 @@ void handle_interruption(int code, struc
 		force_sig_info(SIGSEGV, &si, current);
 		return;
 
-	case 28:  /* Unaligned just causes SIGBUS for now */
+ unaligned_d_access:
+	case 28:
 		handle_unaligned(regs);
 #if 0
 		die_if_kernel("Unaligned data reference", regs, code);


I'm aware it doesn't attempt to handle case 27 yet, but that shouldn't
normally occur.

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] XFree on 712/60: BLUE instead of GREY/WHITE
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Hello PA Risc hackers !

I know, this is a known problem and was discussed recently.

What is the status about this problem. Is this fixed? Is the problem
analysed ?

But I cannot imagine, that X is running !!
GOOD WORK !


With friendly regards
	Christoph P.

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at





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From: Sonny Cook <sonny@aspersion.org>
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Subject: [parisc-linux] linux and hp 735/125 fs corruption
Date: Sun, 16 Sep 2001 01:45:53 -0600 (MDT)
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Hi,
I have an hp 735/125 on which I initially installed hp-ux 11.0.  That was
all fine and dandy, but I got tired of trying to figure out the insides of
hp-ux, so I finally just turned the thing off.

It seemed like it might be fun to install linux on the box, so I got a
file system and precompiled kernel (2.4.0-32)  from:
http://mkhppa1.esiee.fr/

I installed these following the instructions from the same site.  It went
along more or less well until I tried to copy the latest kernel source
over ssh to the hp box.  It copied about 90% and then threw an
"Input/output error".  At that point all the programs I tried with the
exception of 'ls' threw the same error.  These symptoms have been repeated
regularly.

I do not have any swap partions.  I have 300MB on the box.  I tried with
two different disks and two different 735's.  Fsck on the root partition
shows massive (but so far recoverable) file system corruption.

Things I can't do:
	complete apt-get update
	untar kernel source
	copile kernel source
	scp kernel source

Things I can do:
	login
	add new users, modify passwords
	ssh session
	vi /etc/fstab, /etc/hosts, etc
	make menuconfig (for kernel compile)

I am baffeled.  I haven't been able to find any information on this
subject, other than to note that 2.4.0 has been blamed for fs corruption
on some systems.

Any ideas?

thanks,
Sonny Cook





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Subject: Re: [parisc-linux] linux and hp 735/125 fs corruption
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On Sun, Sep 16, 2001 at 01:45:53AM -0600, Sonny Cook wrote:
> 
> I am baffeled.  I haven't been able to find any information on this
> subject, other than to note that 2.4.0 has been blamed for fs corruption
> on some systems.
> 
I have seen lots of disk-corruption on my C200+, both with 2.4.0 and
with 2.4.9-pa{16|18|20} but it always seems to start with some
scsi-error. By the time the partition is remounted r/o, things like
complete linux-kernel source trees are crosslinked and corrupted. So
far, I've not lost anything really essential, but having all the links
in /etc/rc2.d/ removed wasn't that much fun.

Do you have any messages in the log-files?

Good luck,
Jurriaan
-- 
The unicorn stared unhappily at the dragon. "I don't suppose there's any
chance that thing is a vegetarian?" The dragon smiled. His pointed teeth
gleamed brightly in the sunlight.
	Simon R Green - Blue Moon Rising
GNU/Linux 2.4.9-ac10 SMP/ReiserFS 2x1402 bogomips load av: 0.00 0.09 0.06




From - Thu Nov 08 21:19:12 2018
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Subject: Re: [parisc-linux] Re: Trace/Breakpoint trap on "make mrproper"
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On Fri, Sep 07, 2001 at 07:56:42AM -0600, John Marvin wrote:
> >
> > It looks like this patch:
> > >Date: Thu, 6 Sep 2001 03:48:16 -0600 (MDT)
> > >From: John Marvin jsm@udlkern.fc.hp.com
> > >Subject: [parisc-linux-cvs] Patch for SMP support, etc.>
> > >A rather large patch that includes my current SMP support changes, plus
> > >a variety of other fixes/changes.
> >
> > did something. But it's so large I'm not sure what exactly :-)
> >
> > Jurriaan
> >
> 
> I was pretty sure my changes to handle_break (in traps.c) would fix that
> problem.  When I read your note I remembered that I had seen a similar
> problem and fixed it.  The kernel would hang when a user program executed
> a break instruction (either intentionally or not) without an attached
> debugger. That is the problem you were seeing.
> 
> However, now that the machine doesn't hang, I am not sure if the remaining
> problem you are seeing is a kernel bug or a userland bug.  It would appear
> that you are executing 0's (0x00000000 is a break instruction). That
> should cause the kernel to send you a SIGTRAP signal. I just checked some
> of your old mail, and it looks like you are getting a SIGTRAP. One thing
> that looks strange is that you are getting signals delivered using stack
> addresses both at ~0xfaf00000 and ~0xbff00000. I wonder if make is using
> an alternate signal stack?
> 
It may interest you to know that this 'Trace/breakpoint trap' does occur
when I compile the kernel for a PA8x00 cpu, but it doesn't occur when I
compile for PA7x00 cpu....

Jurriaan
-- 
I'll never be back and I'll never be missed
But I leave something here
And that doesn't seem right
	Big Country - The Dynamite Lady
GNU/Linux 2.4.9-ac10 SMP/ReiserFS 2x1402 bogomips load av: 0.00 0.09 0.06




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Hey, check out this new warez site.

http://www.hurtings.com
Enjoy





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From: "jlez" <jlez@altavista.fr>
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Subject: [parisc-linux] pbs while running an apache web server...
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C'est un message de format MIME en plusieurs parties.

------=_NextPart_000_0021_01C13F6C.8B145D30
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

Hi,=20

First of all, I would like to congratulate all the developpers working =
on this project!
I recently save a 712/80 from the trash, and install the 0.9.2 pa-risc =
linux on it.
I decide to use apache with php4 and mysql on it.
It works quite well, but I think there's a problem with memory loss...
When the traffic increases, memory is used (from now, that's ok), but, =
when the traffic decreases, and I add the memory that processes use, the =
sum is not equal to the total amount of memory used (as indicated by the =
top command, or 'ps aux'), and sometimes, the whole system crashes and =
the only solution to take the hand is rebooting (but cutting power, =
because the power button don't react...).
Does anybody know what could be the problem (and the solution ;) )?
I also have an other question : when do you think a 64 bits kernel with =
sti support would be available?

Best regards,

jl.

------=_NextPart_000_0021_01C13F6C.8B145D30
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.3315.2870" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi, </FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>First of all, I would like to =
congratulate all the=20
developpers working on this project!</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I recently save a 712/80 from the =
trash, and=20
install the 0.9.2 pa-risc linux on it.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I decide to use apache with php4 and =
mysql on=20
it.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>It works quite well, but I think =
there's a problem=20
with memory loss...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>When the traffic increases, memory is =
used (from=20
now, that's ok), but, when the traffic decreases, and I add the memory =
that=20
processes use, the sum is not equal to the total amount of memory used =
(as=20
indicated by the top command, or 'ps aux'), and sometimes, the whole =
system=20
crashes and the only solution to take the hand is rebooting (but cutting =
power,=20
because the power button don't react...).</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Does anybody know what could be the =
problem (and=20
the solution ;) )?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I also have an other question : when do =
you think a=20
64 bits kernel with sti support would be available?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Best regards,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>jl.</FONT></DIV></BODY></HTML>

------=_NextPart_000_0021_01C13F6C.8B145D30--





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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Betr.: [parisc-linux] pbs while running an apache web
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>Hi,=20
>
>I also have an other question : when do you think a 64 bits kernel with =
sti support would be available?
>
AFAIK, your 712 doesn't have a 64-bit CPU, so a 64-bits kernel probably =
wouldn't run on it...

But, I'd also like a 64-bits kernel with sti support for my C200+.

Good luck,
Jurriaan






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>
> How does this look?  I can't test it because I don't have a 720-era machine,
> but it ought to work, I think...
>

<Patch Deleted>

No, it needs to be a little more complicated than that. That patch doesn't
take into account byte and half-word accesses to a page. The real fix
needs to look at the instruction in the iir register in combination with
the ior value in order to determine whether the access is unaligned.

I thought for a second that the patch might work anyway, since the
unaligned fault handler has exception table support, so even though
the instruction might be unecessarily emulated, it would still
successfully bring the page in, but the unaligned fault handler
uses ldb, which would just cause an infinite loop ...

So, the correct fix should probably involve leveraging some of the
macros in unaligned.c and writing something like check_unaligned(regs)
that would be used by the trap 18 handler to determine whether or
not the access was unaligned or not.

John




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Hi kernel hackers !

My HP 712/60 with a 2.4.9-pa20 kernel crash with the following error
message when I portscan it using nmap -O (OS detection).

kswapd[4]: Unaligned data reference 28

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111000001111
r0-3o 00000000 10332810 1028b9e4 0000000a
r4-7o 100dfdb2 100ed148 0000000c 100dfd94
r8-11o 00000000 00000001 00020000 10ce6500
r12-15o 11fb09a0 00004400 00004800 43f02aa9
r16-19o 100eca00 00000000 00000c00 00000001
r20-23o 00000000 00000109 117ca000 0000000f
r24-27o 00000000 100ed148 10ce6500 102f0010
r28-31o 117ca160 00000040 100ed400 1012e6d8
sr0-3o 00000000 00000002 00000000 00000002
sr4-7o 00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10281658 1028165c
 IIR: 0c801093    ISR: 00000000  IOR: 100dfdb2
 CPU:        0   CR30: 100ec000 CR31: 103a0000
 ORIG_R28: 00000000
Kernel Panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing

Thanks for your work !

Any idea ? Do I need to fill a bugreport ?
-- 
Francois Deppierraz <francois.deppierraz@nimag.net>
Nimag Networks Srl - www.nimag.net
PGP Key ID: 9D283BC9




From - Thu Nov 08 21:19:13 2018
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From: "Pedot, Wolfgang" <wpedot@harris.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Kernel 2.4.9-pa10 now works on 715/75! Sound?
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To: 'Matthew Wilcox' <willy@debian.org>
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Hi,=20

I just upgraded to 2.4.9-pa18 and the soundchip is detected by =
Harmony-Driver
and i can work with aumix and mpg123 but the sound-output is kind of =
stuttering.
According to top mpg123 takes ~30% cpu-power and the machine is =
~65%idle (5%
System). Since converting the mp3 to wav (mpg123), converting the wav =
to raw
(sox) and piping the file to /dev/dsp works flawlessly I think this =
might be a
mpg123-problem.....

greetings
Wolfgang

> -----Original Message-----
> From:	Matthew Wilcox [SMTP:willy@debian.org]
> Sent:	Thursday, August 30, 2001 6:58 PM
> To:	Pedot, Wolfgang
> Cc:	'Matthew Wilcox'
> Subject:	Re: [parisc-linux] Kernel 2.4.9-pa10 now works on 715/75! =
Sound?
>=20
> On Thu, Aug 30, 2001 at 11:19:23AM -0400, Pedot, Wolfgang wrote:
> > Yes, I read this but after I saw "supporting all 712/715 machines =
now" in
> the
> > CVS-log I thought it could work now....
> > So I=B4ll be patient and wait a little longer :)
>=20
> Shortly after I wrote that, I thought `Hey, you know, we could hack =
this
> to work really easily'.  Try it now; I've verified it boots on my =
715/75,
> but I don't have an IP address for that machine so I don't have =
userspace.
>=20
> --=20
> Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] nmap -O -> kernel panic on 712
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To: Francois Deppierraz <francois@ctrlaltdel.ch>
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On Mon, Sep 17, 2001 at 04:55:01PM +0200, Francois Deppierraz wrote:
> Hi kernel hackers !
> 
> My HP 712/60 with a 2.4.9-pa20 kernel crash with the following error
> message when I portscan it using nmap -O (OS detection).
> 
> kswapd[4]: Unaligned data reference 28
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111000001111
> r0-3o 00000000 10332810 1028b9e4 0000000a
> r4-7o 100dfdb2 100ed148 0000000c 100dfd94
> r8-11o 00000000 00000001 00020000 10ce6500
> r12-15o 11fb09a0 00004400 00004800 43f02aa9
> r16-19o 100eca00 00000000 00000c00 00000001
> r20-23o 00000000 00000109 117ca000 0000000f
> r24-27o 00000000 100ed148 10ce6500 102f0010
> r28-31o 117ca160 00000040 100ed400 1012e6d8
> sr0-3o 00000000 00000002 00000000 00000002
> sr4-7o 00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 10281658 1028165c
>  IIR: 0c801093    ISR: 00000000  IOR: 100dfdb2
>  CPU:        0   CR30: 100ec000 CR31: 103a0000
>  ORIG_R28: 00000000
> Kernel Panic: Aiee, killing interrupt handler!
> In interrupt handler - not syncing
> 
> Thanks for your work !
> 
> Any idea ? Do I need to fill a bugreport ?

Let's first find out what happened. Paste a small part of your
System.map file for this kernel (like 10 lines) with the address
10281658 somewhere in the middle. Then do 

objdump -d <your kernel> and grep for say 40 lines around 10281658. It
helps if there are some calls in that part, so you can see where we are
in the kernel. 

Nobody can do this for you, since your kernel is unique (or at least
probably unique).

If in doubt, search the archives for a mail with the subject 'Documented
oops running big-endian reiserfs on parisc architecture' where I
basically do the same: find out where it went wrong.

Then post this information!


Good luck,
Jurriaan
-- 
Do you consider yourself to be the native of another world?
Reith laughed and groped for an answer. He said: "Four possible conditions
exist. If I were indeed from another world I could answer yes or no. If I
were not from another world I could answer yes or no. The first case leads
to inconvenience. The second diminishes my self-respect. The third case is
insanity. The fourth represents the only situation you would not consider
an abnormality. The question, hence, as you admit, is absurd."
	Adam Reith (Jack Vance - Servants of the Wankh)
GNU/Linux 2.4.9-ac10 SMP/ReiserFS 2x1402 bogomips load av: 0.29 0.37 0.20




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From: Jochen Friedrich <jochen@scram.de>
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Subject: Re: [parisc-linux] Re: Getting up and running
Date: Mon, 17 Sep 2001 23:25:30 +0200 (CEST)
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To: John Marvin <jsm@udlkern.fc.hp.com>
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Hi John,

> I thought for a second that the patch might work anyway, since the
> unaligned fault handler has exception table support, so even though
> the instruction might be unecessarily emulated, it would still
> successfully bring the page in, but the unaligned fault handler
> uses ldb, which would just cause an infinite loop ...

init started:  BusyBox v0.51 (2001.06.27-21:43+0000) multi-call binary
rcS(14): unaligned access to 0x000411e5 at ip=0x0001a04f
Not-handled unaligned insn 0x60a0002a
Unaligned handler failed, ret = -1 #
# ps -ax
<4>sh(16): unaligned access to 0x000411e5 at ip=0x0001a04f
Not-handled unaligned insn 0x60a0002a
Unaligned handler failed, ret = -1 Bus error
# ls -la
<4>sh(17): unaligned access to 0x000411e5 at ip=0x0001a04f
Not-handled unaligned insn 0x60a0002a
Unaligned handler failed, ret = -1 Bus error

I had more success using the old suggested patch:

"Our" CPUs are very old. So there must be a line added in
the arch/parisc/kernel/trap.c file. In the handle_interruption()
you must add the line
        `case 18:'
where
        `case 15:'
        `case 26:'
is in the code, because these old CPUs use an older method of
"reporting" page faults, etc...

It looks like the expression "if (regs->ior & 3)" might be wrong here...

Cheers,
Jochen





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From: marka@sea.checkpoint.com
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Subject: [parisc-linux] installing a native built kernel with 2.4.0 (.92 dist).
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I've successfully installed and upgraded with the .92 distro, but I'm having
trouble getting a natively built kernel with this distro to load.

the load will either freeze at 'branching to kernel entry point' or
on the last time I rebuilt and copied, it complained:

Couldn't grok your kernel executable format
failed to load kernel

this is with kernel-latest and palo-latest from Sep 7 on a b180l

I select PA7300LC on 'make oldconfig' (this sets CONFIG_PA7100LC=y in
.config).

Any tips from the pros on building and installing -latest natively?  I'd
really like to get the fixes in 2.4.9, and there must be something more
interesting that needs to be done than copying/renaming lifimage over to /boot
and updating palo.conf and re-running palo.

-mark




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From: Francois Deppierraz <francois@ctrlaltdel.ch>
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Subject: Re: [parisc-linux] nmap -O -> kernel panic on 712
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On Mon, Sep 17, 2001 at 08:33:12PM +0200, thunder7@xs4all.nl wrote:

> Let's first find out what happened. Paste a small part of your
> System.map file for this kernel (like 10 lines) with the address
> 10281658 somewhere in the middle. Then do 

I didn't found 10281658 in System.map.

ludwig:/boot# grep -C -10 102816 /boot/System.map-2.4.9-pa20
10280d7c t .L2469
10280d8c t .L2470
10280dcc t .L2471
10280ed0 t .L2472
10280f00 t tcp_ack_probe
10280ff0 t tcp_ack_update_window
10281104 t tcp_ack
1028114c t .L2521
102811b4 t .L2569
10281418 T tcp_parse_options
1028168c t tcp_disordered_ack
1028173c t tcp_reset
1028179c t .L2659
10281828 t .L2676
10281850 t tcp_fin
10281910 t .L2678
10281914 t .L2720
1028195c t .L2756
10281ae4 t .L2757
10281af8 t .L2758
10281af8 t tcp_send_dupack
ludwig:/boot# 

> objdump -d <your kernel> and grep for say 40 lines around 10281658. It
> helps if there are some calls in that part, so you can see where we are
> in the kernel. 

ludwig:/boot# objdump -d /boot/vmlinux-2.4.9-pa20 | grep -C -40 10281658
102815b8:       37 5a 08 78     ldo 43c(r26),r26
102815bc:       34 13 00 1c     ldi e,r19
102815c0:       e8 1f 1e 2d     b,l 102814dc <tcp_parse_options+0xc4>,r0
102815c4:       60 b3 02 08     stb r19,104(sr0,r5)
102815c8:       8c 64 3e 25     cmpib,<> 2,r3,102814e0 <tcp_parse_options+0xc8>
102815cc:       08 64 0a 13     add,l r4,r3,r19
102815d0:       0c f8 10 93     ldw  c(sr0,r7),r19
102815d4:       09 53 02 13     and r19,r10,r19
102815d8:       86 60 3e 05     cmpib,= 0,r19,102814e0 <tcp_parse_options+0xc8>
102815dc:       08 64 0a 13     add,l r4,r3,r19
102815e0:       8d 00 3d ff     cmpib,<>,n 0,r8,102814e4 <tcp_parse_options+0xcc>
102815e4:       36 64 3f fd     ldo -2(r19),r4
102815e8:       2b 61 50 00     addil 42800,dp,%r1
102815ec:       48 33 0a 70     ldw 538(sr0,r1),r19
102815f0:       86 60 3d d5     cmpib,= 0,r19,102814e0 <tcp_parse_options+0xc8>
102815f4:       08 64 0a 13     add,l r4,r3,r19
102815f8:       60 a9 02 04     stb r9,102(sr0,r5)
102815fc:       60 a0 02 34     stb r0,11a(sr0,r5)
10281600:       60 a0 02 36     stb r0,11b(sr0,r5)
10281604:       e8 1f 1d ad     b,l 102814e0 <tcp_parse_options+0xc8>,r0
10281608:       60 a0 02 9a     stb r0,14d(sr0,r5)
1028160c:       8c 72 5d 9d     cmpib,>= 9,r3,102814e0 <tcp_parse_options+0xc8>
10281610:       08 64 0a 13     add,l r4,r3,r19
10281614:       34 73 3f fd     ldo -2(r3),r19
10281618:       d2 73 1b fd     extrw,u r19,31,3,r19
1028161c:       8e 60 3d 7d     cmpib,<> 0,r19,102814e0 <tcp_parse_options+0xc8>
10281620:       08 64 0a 13     add,l r4,r3,r19
10281624:       40 b3 02 04     ldb 102(sr0,r5),r19
10281628:       86 60 3d 5d     cmpib,= 0,r19,102814dc <tcp_parse_options+0xc4>
1028162c:       08 e4 04 13     sub r4,r7,r19
10281630:       36 73 3f fd     ldo -2(r19),r19
10281634:       e8 1f 1d 45     b,l 102814dc <tcp_parse_options+0xc4>,r0
10281638:       61 73 00 92     stb r19,49(sr0,r11)
1028163c:       8c 74 3d 3d     cmpib,<> a,r3,102814e0 <tcp_parse_options+0xc8>
10281640:       08 64 0a 13     add,l r4,r3,r19
10281644:       85 00 20 42     cmpib,=,n 0,r8,1028166c <tcp_parse_options+0x254>
10281648:       40 b3 02 00     ldb 100(sr0,r5),r19
1028164c:       86 60 3d 1d     cmpib,= 0,r19,102814e0 <tcp_parse_options+0xc8>
10281650:       08 64 0a 13     add,l r4,r3,r19
10281654:       60 a9 02 06     stb r9,103(sr0,r5)
10281658:       0c 80 10 93     ldw  0(sr0,r4),r19
1028165c:       68 b3 02 10     stw r19,108(sr0,r5)
10281660:       0c 88 10 94     ldw  4(sr0,r4),r20
10281664:       e8 1f 1c e5     b,l 102814dc <tcp_parse_options+0xc4>,r0
10281668:       68 b4 02 18     stw r20,10c(sr0,r5)
1028166c:       2b 61 50 00     addil 42800,dp,%r1
10281670:       48 33 0a 60     ldw 530(sr0,r1),r19
10281674:       8e 60 3f bf     cmpib,<>,n 0,r19,10281658 <tcp_parse_options+0x240>
10281678:       60 a9 02 06     stb r9,103(sr0,r5)
1028167c:       e8 1f 1c bd     b,l 102814e0 <tcp_parse_options+0xc8>,r0
10281680:       08 64 0a 13     add,l r4,r3,r19
10281684:       e8 1f 1c bd     b,l 102814e8 <tcp_parse_options+0xd0>,r0
10281688:       b4 c6 07 ff     addi -1,r6,r6

1028168c <tcp_disordered_ack>:
1028168c:       4b 35 00 38     ldw 1c(sr0,r25),r21
10281690:       08 1a 02 57     copy r26,r23
10281694:       0e b8 10 93     ldw  c(sr0,r21),r19
10281698:       4b 36 00 78     ldw 3c(sr0,r25),r22
1028169c:       4b 34 00 98     ldw 4c(sr0,r25),r20
102816a0:       c5 73 c0 10     bb,*>= r19,b,102816b0 <tcp_disordered_ack+0x24>
102816a4:       34 1c 00 00     ldi 0,ret0
102816a8:       4b 33 00 80     ldw 40(sr0,r25),r19
102816ac:       82 d3 20 02     cmpb,=,n r19,r22,102816b4 <tcp_disordered_ack+0x28>
102816b0:       e8 40 c0 02     bv,n r0(rp)
102816b4:       0e f0 10 93     ldw  8(sr0,r23),r19
102816b8:       8a d3 3f e5     cmpb,<> r19,r22,102816b0 <tcp_disordered_ack+0x24>
102816bc:       08 00 02 40     nop
102816c0:       4a f3 00 20     ldw 10(sr0,r23),r19
102816c4:       8a 93 3f cd     cmpb,<> r19,r20,102816b0 <tcp_disordered_ack+0x24>
102816c8:       08 00 02 40     nop
102816cc:       42 f3 02 08     ldb 104(sr0,r23),r19
102816d0:       4a f8 00 a0     ldw 50(sr0,r23),r24
102816d4:       0e bc 10 54     ldh  e(sr0,r21),r20
102816d8:       96 73 00 3e     subi 1f,r19,r19
102816dc:       01 73 18 40     mtsar r19
102816e0:       0a d8 04 15     sub r24,r22,r21
102816e4:       d6 94 00 00     depw,z r20,%sar,32,r20
102816e8:       86 a0 60 60     cmpib,<= 0,r21,10281720 <tcp_disordered_ack+0x94>
102816ec:       34 19 00 00     ldi 0,r25
102816f0:       34 19 00 02     ldi 1,r25
102816f4:       8f 20 3f 6d     cmpib,<> 0,r25,102816b0 <tcp_disordered_ack+0x24>
102816f8:       34 19 00 c8     ldi 64,r25
102816fc:       4a fa 01 00     ldw 80(sr0,r23),r26
10281700:       4a f3 02 20     ldw 110(sr0,r23),r19
10281704:       d7 5a 09 4a     depw,z r26,21,22,r26
10281708:       eb fd 08 c4     b,l 102bcb70 <$$divU>,r31
1028170c:       4a f4 02 10     ldw 108(sr0,r23),r20
ludwig:/boot# 

> Then post this information!

Here it is, anything else needed ?

Thanks a lot !
-- 
Francois Deppierraz <francois.deppierraz@nimag.net>
Nimag Networks Srl - www.nimag.net
PGP Key ID: 9D283BC9




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From: thunder7@xs4all.nl
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Subject: Re: [parisc-linux] nmap -O -> kernel panic on 712
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On Tue, Sep 18, 2001 at 12:24:28AM +0200, Francois Deppierraz wrote:
> ludwig:/boot# objdump -d /boot/vmlinux-2.4.9-pa20 | grep -C -40 10281658
> 102815b8:       37 5a 08 78     ldo 43c(r26),r26
> 102815bc:       34 13 00 1c     ldi e,r19
> 102815c0:       e8 1f 1e 2d     b,l 102814dc <tcp_parse_options+0xc4>,r0
> 102815c4:       60 b3 02 08     stb r19,104(sr0,r5)
> 102815c8:       8c 64 3e 25     cmpib,<> 2,r3,102814e0 <tcp_parse_options+0xc8>
> 102815cc:       08 64 0a 13     add,l r4,r3,r19
> 102815d0:       0c f8 10 93     ldw  c(sr0,r7),r19
> 102815d4:       09 53 02 13     and r19,r10,r19
> 102815d8:       86 60 3e 05     cmpib,= 0,r19,102814e0 <tcp_parse_options+0xc8>
> 102815dc:       08 64 0a 13     add,l r4,r3,r19
> 102815e0:       8d 00 3d ff     cmpib,<>,n 0,r8,102814e4 <tcp_parse_options+0xcc>
> 102815e4:       36 64 3f fd     ldo -2(r19),r4
> 102815e8:       2b 61 50 00     addil 42800,dp,%r1
> 102815ec:       48 33 0a 70     ldw 538(sr0,r1),r19
> 102815f0:       86 60 3d d5     cmpib,= 0,r19,102814e0 <tcp_parse_options+0xc8>
> 102815f4:       08 64 0a 13     add,l r4,r3,r19
> 102815f8:       60 a9 02 04     stb r9,102(sr0,r5)
> 102815fc:       60 a0 02 34     stb r0,11a(sr0,r5)
> 10281600:       60 a0 02 36     stb r0,11b(sr0,r5)
> 10281604:       e8 1f 1d ad     b,l 102814e0 <tcp_parse_options+0xc8>,r0
> 10281608:       60 a0 02 9a     stb r0,14d(sr0,r5)
> 1028160c:       8c 72 5d 9d     cmpib,>= 9,r3,102814e0 <tcp_parse_options+0xc8>
> 10281610:       08 64 0a 13     add,l r4,r3,r19
> 10281614:       34 73 3f fd     ldo -2(r3),r19
> 10281618:       d2 73 1b fd     extrw,u r19,31,3,r19
> 1028161c:       8e 60 3d 7d     cmpib,<> 0,r19,102814e0 <tcp_parse_options+0xc8>
> 10281620:       08 64 0a 13     add,l r4,r3,r19
> 10281624:       40 b3 02 04     ldb 102(sr0,r5),r19
> 10281628:       86 60 3d 5d     cmpib,= 0,r19,102814dc <tcp_parse_options+0xc4>
> 1028162c:       08 e4 04 13     sub r4,r7,r19
> 10281630:       36 73 3f fd     ldo -2(r19),r19
> 10281634:       e8 1f 1d 45     b,l 102814dc <tcp_parse_options+0xc4>,r0
> 10281638:       61 73 00 92     stb r19,49(sr0,r11)
> 1028163c:       8c 74 3d 3d     cmpib,<> a,r3,102814e0 <tcp_parse_options+0xc8>
> 10281640:       08 64 0a 13     add,l r4,r3,r19
> 10281644:       85 00 20 42     cmpib,=,n 0,r8,1028166c <tcp_parse_options+0x254>
> 10281648:       40 b3 02 00     ldb 100(sr0,r5),r19
> 1028164c:       86 60 3d 1d     cmpib,= 0,r19,102814e0 <tcp_parse_options+0xc8>
> 10281650:       08 64 0a 13     add,l r4,r3,r19
> 10281654:       60 a9 02 06     stb r9,103(sr0,r5)
> 10281658:       0c 80 10 93     ldw  0(sr0,r4),r19
and there it seems to have crashed
> 
> Here it is, anything else needed ?
> 
A basic understanding of parisc assembly would help me :-)
At this point, newbies like you and me can only hope one of the real
kernel hackers sees this and says 'A-ha!'.

If I look at that code, I see a lot of (__u16 *)ptr and the like.

Am I correct in assuming those are all suspects and this is just another
example of the missing unaligned access trap haunting us?

Jurriaan
-- 
"You were warned, fool. Now I will teach you to profit
 from such courtesies when they are offered."
	Stephen R Donaldson - By Another Name
GNU/Linux 2.4.9-ac10 SMP/ReiserFS 2x1402 bogomips load av: 0.02 0.03 0.00




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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: Re: [parisc-linux] nmap -O -> kernel panic on 712
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Hello,

I'm pretty new to the whole PA-RISC Linux effort, so I would appreciate
it if someone could explain to me (and perhaps to other newbies), what
these unaligned access traps are, and what needs to be added to traps.c
(or possibly elsewhere) to get things working properly?

Regards,

Albert

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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] nmap -O -> kernel panic on 712
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On Tue, Sep 18, 2001 at 07:38:55AM +0200, thunder7@xs4all.nl wrote:
> Am I correct in assuming those are all suspects and this is just another
> example of the missing unaligned access trap haunting us?

that's right; this is exactly what andi kleen & davem were talking about
last week.

-- 
Revolutions do not require corporate support.




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] installing a native built kernel with 2.4.0 (.92 dist).
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Xref: news.gmane.org gmane.linux.ports.parisc:12209

On Mon, Sep 17, 2001 at 03:13:40PM -0700, marka@sea.checkpoint.com wrote:
> 
> I've successfully installed and upgraded with the .92 distro, but I'm having
> trouble getting a natively built kernel with this distro to load.
> 
> the load will either freeze at 'branching to kernel entry point' or
> on the last time I rebuilt and copied, it complained:
> 
> Couldn't grok your kernel executable format
> failed to load kernel

If you are netbooting, you use a lifimage, if you are booting
from disk you use the vmlinux file produced from building the
kernel.

> this is with kernel-latest and palo-latest from Sep 7 on a b180l
> 
> I select PA7300LC on 'make oldconfig' (this sets CONFIG_PA7100LC=y in
> .config).

The config we use for the official kernels is in arch/parisc/debian-configs/32,
you can "make distclean; cp arch/parisc/debian-configs/32 .config;
make oldconfig; make; cp vmlinux /boot/vmtest", then reboot, interact
with IPL and change the vmlinux-whatever name to be vmtest.

> Any tips from the pros on building and installing -latest natively?  I'd
> really like to get the fixes in 2.4.9, and there must be something more
> interesting that needs to be done than copying/renaming lifimage over to /boot
> and updating palo.conf and re-running palo.

Don't copy lifimages to /boot, copy vmlinux.

Richard





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Thanks for your help,

Ok, it turns out it is booting (the machine's so quiet it's hard to tell), and
not 'freezing' per-say at 'branching to kernel entry point 0x00100000'.  It's
simply not sending anything to ttyS0 any more after this point.  This seems to
be the 'swapped serial ports' issue mentioned earlier on this list.

--
Mark






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Subject: Re: [parisc-linux] installing a native built kernel with 2.4.0 (.92 dist).
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On Tue, Sep 18, 2001 at 10:10:43AM -0700, marka@sea.checkpoint.com wrote:
> Ok, it turns out it is booting (the machine's so quiet it's hard to tell), and
> not 'freezing' per-say at 'branching to kernel entry point 0x00100000'.  It's
> simply not sending anything to ttyS0 any more after this point.  This seems to
> be the 'swapped serial ports' issue mentioned earlier on this list.

That could be.  Can you boot the old kernel and report
what the serial ports are as Richard did in his message
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-September/013670.html

Or if your machine boots as far as having a network, you could check in
dmesg to see what the inventory reported and paste it from there.

-- 
Revolutions do not require corporate support.




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] installing a native built kernel with 2.4.0 (.92 dist).
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On Tue, Sep 18, 2001 at 10:10:43AM -0700, marka@sea.checkpoint.com wrote:
> Thanks for your help,
> 
> Ok, it turns out it is booting (the machine's so quiet it's hard to tell), and
> not 'freezing' per-say at 'branching to kernel entry point 0x00100000'.  It's
> simply not sending anything to ttyS0 any more after this point.  This seems to
> be the 'swapped serial ports' issue mentioned earlier on this list.

That should be fixed in the latest kernel source, please let us know
if it is still broken on your box.

Thanks,
  Richard





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On Tue, 18 Sep 2001, Richard Hirst wrote:
> That should be fixed in the latest kernel source, please let us know
> if it is still broken on your box.

lo and behold it is fixed, thanks! broken in pa17 and fixed in pa22.

Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI
enabled
ttyS00 at iomem 0xffd05800 (irq = 154) is a 16550A
ttyS01 at iomem 0xfff83800 (irq = 74) is a 16550A

--
Mark




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From: "MEYER,ALAN C. (HP-FtCollins,ex1)" <alan_meyer@hp.com>
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Subject: [parisc-linux] RE: Old hardware and PA-Linux
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Chuck -

I am not sure if anyone has recently been trying D and/or R-class systems.

Anyone?

Alan

>As suggested, I'm writing to enquire about the current status 
>of Linux usability on old D-Class and R-Class server hardware. 

>Those boxes are good targets for recycling into robust, 
>just-won't-die servers where performance matters less than 
>reliability.  I also have a selfish motive - I'm currently 
>running an old D350 2-way with tons of RAM and disk as a 
>mail/web/DNS server, and would like to run Linux rather than 
>HP-UX simply for consistency with all the other machines I have.




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My D310 seems to work fine once I pulled the extra serial console/modem
thing (sorry, don't remember the name). I couldn't get my cd to boot, but
a lifimage worked fine with a net install.

dave

On Tue, 18 Sep 2001, MEYER,ALAN C. (HP-FtCollins,ex1) wrote:

> Chuck -
> 
> I am not sure if anyone has recently been trying D and/or R-class systems.
> 
> Anyone?
> 
> Alan
> 
> >As suggested, I'm writing to enquire about the current status 
> >of Linux usability on old D-Class and R-Class server hardware. 
> 
> >Those boxes are good targets for recycling into robust, 
> >just-won't-die servers where performance matters less than 
> >reliability.  I also have a selfish motive - I'm currently 
> >running an old D350 2-way with tons of RAM and disk as a 
> >mail/web/DNS server, and would like to run Linux rather than 
> >HP-UX simply for consistency with all the other machines I have.
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 

-- 
Dave Weis             "I believe there are more instances of the abridgement
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison





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From: Bjorn Helgaas <bjorn_helgaas@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C3600/J5600 support
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I don't have time to pursue C3600/J5600 issues, so I'm forwarding this to 
the list in case anyone else wants to look at it.  I got C3600 to boot 
with a small ugly hack (see below), so I think a clean solution shouldn't 
be too hard to find.

Bjorn


----------  Forwarded Message  ----------

Subject: Re: C3600 LBA problem
Date: Thu, 13 Sep 2001 01:11:32 -0600
From: Grant Grundler <grundler@puffin.external.hp.com>
To: Bjorn Helgaas <bjorn_helgaas@hp.com>

Bjorn Helgaas wrote:
> Hi Grant,
>
> I'm playing with a C3600.  Not sure if the kernel is "supposed" to work
> on this or not, but it seems pretty close.

Rick Jones and I tried to boot on a J5600 and it HPMC'd too.
It wasn't a priority to pursue at the time.

> When I boot the current cvs kernel (with EARLY_BOOTUP_DEBUG) on the
> C3600, I get an HPMC while doing a config space read just after finding
> an LBA:
>
>   lba version TR4.0 (0x5) found at 0xfffffffffed30000
>   <HPMC>
>
> >From the PIM, I see:
>
>   PC: 1024ca44 (_gsc_readb+4)
>     1024ca44:   0f 40 00 1c     ldb  r0(sr0,r26),ret0
>   R26: fffffffffed3004a
>   RP: 10111130 (in lba_cfg_read)
>
> I don't see anything wrong with the address we're trying to read -- it
> looks like a valid byte in the CONFIG_DATA CSR.
>
> I notice in lba_cfg_read##size that since this is a TR4 LBA, we don't
> use the old workaround code.  However, if I short-circuit the version
> testing so we DO use the old code, the kernel boots just fine!  I.e.,
> with the following change to lba_pci.c:
>
> -       if ((!LBA_TR4PLUS(d)) && (!LBA_SKIP_PROBE(d))) { \
> +       if (1 /*(!LBA_TR4PLUS(d)) && (!LBA_SKIP_PROBE(d))*/) { \
>
> it works.  Any ideas on how to pursue this?

Several ideas:
o Sprockets firmware *does* program the chipset a bit differently
  than PAT PDC firmware - notably DMA hint registers. Dump *all* LBA
  registers from A500, C3K, and C3600 boot and see what's different.
  It also might be a difference in how Astro or the CPU is initialized
  but LBA is a starting point.

o Talk to Sprockets firmware team. JL Marsh is my contact though I
  think he's been working on IA64 firmware for quite some time.
  Find out if any of the differences are obvious to them.

o Look at later versions of HPUX LBA code to see if they do anything
  different. I based my code on 990P (r11_rose_latest or something like
 that). Joe Loos (Cupertino) would know who "owns" LBA support for HPUX. I
 haven't talked to him in a while and don't even know if he's
  still around.

>   I'm also testing on an A500,
> which looks like it has TR4 LBAs as well, so I know the TR4PLUS path
> isn't completely broken.

Exactly. A500 is working for everyone so I'm pretty sure it's not
a fundemental HW problem.

> Oh, I'll attach all the console output from both boots.

mh doesn't deal well with attachments. I need to get to bed anyway.
I will unpack/look at those tomorrow for you.

hope this helps,
grant

-------------------------------------------------------




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On Tue, Sep 18, 2001 at 12:38:29PM +0200, Albert Strasheim wrote:
> Hello,
> 
> I'm pretty new to the whole PA-RISC Linux effort, so I would appreciate
> it if someone could explain to me (and perhaps to other newbies), what
> these unaligned access traps are, and what needs to be added to traps.c
> (or possibly elsewhere) to get things working properly?
> 
AFAIK, an unaligned trap is a process (or the kernel) that tries to
access memory on a location that is not 32-bit aligned. 

Supposedly, there should be code that determines what the process was
trying to do, gets the information on a 32-bit aligned address, modifies
the information to the form the process wanted it in, then returns to
the process.

All of this requires assembly and some tricks with interrupts etc, which
doesn't make it a project for beginners (well, not beginners with my
level of knowledge and determination :-) ).

there is something called arch/parisc/kernel/unaligned.c, but that
doesn't seem to be the whole story.

Good luck,
Jurriaan
-- 
You have no feelings for me, but you do have feelings against me.
	Neelix - Startrek Voyager
GNU/Linux 2.4.9-ac10 SMP/ReiserFS 2x1402 bogomips load av: 0.08 0.04 0.01




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Subject: [parisc-linux] interesting problem in tty? telnetd? ls?
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I'm not sure where this problem is occuring, but I suspect it's telnetd.

telnet to your pa-risc linux box
cd to the root directory
execute 'ls -alR'

you'll lose your ptty and telnet session after a short while (seconds), but
never at the the same place during the listing.  This does not occur over the
serial console, but since that's only running at 9600 it may not be fast
enough for the drop to occur.

--
Mark





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Subject: [parisc-linux] Re: interesting problem in tty? telnetd? ls?
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This is with the telnetd obtained from 'apt-get telnetd' btw.

On Wed, 19 Sep 2001, Mark Atkinson wrote:
> you'll lose your ptty and telnet session after a short while (seconds), but
> never at the the same place during the listing.  This does not occur over the
> serial console, but since that's only running at 9600 it may not be fast
> enough for the drop to occur.

--
Mark





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] interesting problem in tty? telnetd? ls?
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On Wed, Sep 19, 2001 at 02:55:13PM -0700, marka@sea.checkpoint.com wrote:
> I'm not sure where this problem is occuring, but I suspect it's telnetd.
> 
> telnet to your pa-risc linux box
> cd to the root directory
> execute 'ls -alR'
> 
> you'll lose your ptty and telnet session after a short while (seconds), but
> never at the the same place during the listing.  This does not occur over the
> serial console, but since that's only running at 9600 it may not be fast
> enough for the drop to occur.

I had this problem; it went away when I move up to a 2.4.9 kernel.

Richard





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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] interesting problem in tty? telnetd? ls?
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Hi all,

	I experience the same problem on my B132. I can log myself in but when
I do 'su' I got my connection closed.

Thomas.




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On Wed, 19 Sep 2001, Richard Hirst wrote:
> I had this problem; it went away when I move up to a 2.4.9 kernel.

As noted earlier with the serial port problem fix, I am running 2.4.9-pa22.

--
Mark




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From: Sonny Cook <sonny@aspersion.org>
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Subject: Re: [parisc-linux] linux and hp 735/125 fs corruption
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On Sun, 16 Sep 2001 thunder7@xs4all.nl wrote:
A snippet from my logs--this is from one of the times that the problem
happened first the logs for my scsi stuff:

Aug 24 20:56:34 geordi kernel: SCSI subsystem driver Revision: 1.00
Aug 24 20:56:34 geordi kernel: sim700: Configuring 53c700 (SCSI-ID 7) at
f0825100, IRQ 86, options 1
Aug 24 20:56:35 geordi kernel: scsi0: Revision 0x0
Aug 24 20:56:35 geordi kernel: scsi0: test 1 completed ok.
Aug 24 20:56:35 geordi kernel: scsi0 : LASI/Simple 53c7xx
Aug 24 20:56:35 geordi kernel:   Vendor: SEAGATE   Model: ST32151N
Rev:  HP01
Aug 24 20:56:35 geordi kernel:   Type:   Direct-Access ANSI SCSI revision:
02
Aug 24 20:56:35 geordi kernel: Detected scsi disk sda at scsi0, channel 0, id 1, lun 0
Aug 24 20:56:35 geordi kernel: SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
Aug 24 20:56:35 geordi kernel: Partition check:
Aug 24 20:56:35 geordi kernel:  sda: sda1 sda2
Aug 24 20:56:35 geordi kernel: linear personality registered
Aug 24 20:56:35 geordi kernel: raid0 personality registered
Aug 24 20:56:35 geordi kernel: raid1 personality registered
Aug 24 20:56:35 geordi kernel: raid5 personality registered
Aug 24 20:56:35 geordi kernel: raid5: measuring checksumming speed
Aug 24 20:56:35 geordi kernel:    8regs     :    86.487 MB/sec
Aug 24 20:56:35 geordi kernel:    8regs_prefetch:    86.487 MB/sec
Aug 24 20:56:35 geordi kernel:    32regs    :    94.488 MB/sec
Aug 24 20:56:35 geordi kernel:    32regs_prefetch:    94.488 MB/sec
Aug 24 20:56:35 geordi kernel: raid5: using function: 32regs_prefetch (94.488 MB/sec)

And then the errors:

Aug 24 21:04:17 geordi kernel: attempt to access beyond end of device
Aug 24 21:04:17 geordi kernel: 08:02: rw=0, want=1490348228, limit=2079077
Aug 24 21:04:17 geordi kernel: attempt to access beyond end of device
Aug 24 21:04:17 geordi kernel: 08:02: rw=0, want=13683948, limit=2079077
Aug 24 21:04:17 geordi kernel: attempt to access beyond end of device
Aug 24 21:04:17 geordi kernel: 08:02: rw=0, want=1237161376, limit=2079077
Aug 24 21:04:17 geordi kernel: attempt to access beyond end of device
Aug 24 21:04:17 geordi kernel: 08:02: rw=0, want=746694036, limit=2079077
Aug 24 21:04:20 geordi kernel: (device sd(8,2)): ext2_free_blocks: Freeing
block
s not in datazone - block = 1769104416, count = 1
Aug 24 21:04:20 geordi kernel: Remounting filesystem read-only
Aug 24 21:04:20 geordi last message repeated 108 times

Any ideas???

> On Sun, Sep 16, 2001 at 01:45:53AM -0600, Sonny Cook wrote:
> >
> > I am baffeled.  I haven't been able to find any information on this
> > subject, other than to note that 2.4.0 has been blamed for fs corruption
> > on some systems.
> >
> I have seen lots of disk-corruption on my C200+, both with 2.4.0 and
> with 2.4.9-pa{16|18|20} but it always seems to start with some
> scsi-error. By the time the partition is remounted r/o, things like
> complete linux-kernel source trees are crosslinked and corrupted. So
> far, I've not lost anything really essential, but having all the links
> in /etc/rc2.d/ removed wasn't that much fun.
>
> Do you have any messages in the log-files?
>
> Good luck,
> Jurriaan
>





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From: Boyan Lazarov <bsl@mek.dtu.dk>
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Subject: Re: [parisc-linux] linux and hp 735/125 fs corruption
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I have the same problem on 735/99
Regards
Boyan

Sonny Cook wrote:
> 
> On Sun, 16 Sep 2001 thunder7@xs4all.nl wrote:
> A snippet from my logs--this is from one of the times that the problem
> happened first the logs for my scsi stuff:
> 
> Aug 24 20:56:34 geordi kernel: SCSI subsystem driver Revision: 1.00
> Aug 24 20:56:34 geordi kernel: sim700: Configuring 53c700 (SCSI-ID 7) at
> f0825100, IRQ 86, options 1
> Aug 24 20:56:35 geordi kernel: scsi0: Revision 0x0
> Aug 24 20:56:35 geordi kernel: scsi0: test 1 completed ok.
> Aug 24 20:56:35 geordi kernel: scsi0 : LASI/Simple 53c7xx
> Aug 24 20:56:35 geordi kernel:   Vendor: SEAGATE   Model: ST32151N
> Rev:  HP01
> Aug 24 20:56:35 geordi kernel:   Type:   Direct-Access ANSI SCSI revision:
> 02
> Aug 24 20:56:35 geordi kernel: Detected scsi disk sda at scsi0, channel 0, id 1, lun 0
> Aug 24 20:56:35 geordi kernel: SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
> Aug 24 20:56:35 geordi kernel: Partition check:
> Aug 24 20:56:35 geordi kernel:  sda: sda1 sda2
> Aug 24 20:56:35 geordi kernel: linear personality registered
> Aug 24 20:56:35 geordi kernel: raid0 personality registered
> Aug 24 20:56:35 geordi kernel: raid1 personality registered
> Aug 24 20:56:35 geordi kernel: raid5 personality registered
> Aug 24 20:56:35 geordi kernel: raid5: measuring checksumming speed
> Aug 24 20:56:35 geordi kernel:    8regs     :    86.487 MB/sec
> Aug 24 20:56:35 geordi kernel:    8regs_prefetch:    86.487 MB/sec
> Aug 24 20:56:35 geordi kernel:    32regs    :    94.488 MB/sec
> Aug 24 20:56:35 geordi kernel:    32regs_prefetch:    94.488 MB/sec
> Aug 24 20:56:35 geordi kernel: raid5: using function: 32regs_prefetch (94.488 MB/sec)
> 
> And then the errors:
> 
> Aug 24 21:04:17 geordi kernel: attempt to access beyond end of device
> Aug 24 21:04:17 geordi kernel: 08:02: rw=0, want=1490348228, limit=2079077
> Aug 24 21:04:17 geordi kernel: attempt to access beyond end of device
> Aug 24 21:04:17 geordi kernel: 08:02: rw=0, want=13683948, limit=2079077
> Aug 24 21:04:17 geordi kernel: attempt to access beyond end of device
> Aug 24 21:04:17 geordi kernel: 08:02: rw=0, want=1237161376, limit=2079077
> Aug 24 21:04:17 geordi kernel: attempt to access beyond end of device
> Aug 24 21:04:17 geordi kernel: 08:02: rw=0, want=746694036, limit=2079077
> Aug 24 21:04:20 geordi kernel: (device sd(8,2)): ext2_free_blocks: Freeing
> block
> s not in datazone - block = 1769104416, count = 1
> Aug 24 21:04:20 geordi kernel: Remounting filesystem read-only
> Aug 24 21:04:20 geordi last message repeated 108 times
> 
> Any ideas???
> 
> > On Sun, Sep 16, 2001 at 01:45:53AM -0600, Sonny Cook wrote:
> > >
> > > I am baffeled.  I haven't been able to find any information on this
> > > subject, other than to note that 2.4.0 has been blamed for fs corruption
> > > on some systems.
> > >
> > I have seen lots of disk-corruption on my C200+, both with 2.4.0 and
> > with 2.4.9-pa{16|18|20} but it always seems to start with some
> > scsi-error. By the time the partition is remounted r/o, things like
> > complete linux-kernel source trees are crosslinked and corrupted. So
> > far, I've not lost anything really essential, but having all the links
> > in /etc/rc2.d/ removed wasn't that much fun.
> >
> > Do you have any messages in the log-files?
> >
> > Good luck,
> > Jurriaan
> >
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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Subject: Re: [parisc-linux] interesting problem in tty? telnetd? ls?
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In-Reply-To: <Pine.WNT.4.33.0109191442050.5872-100000@nemo.dev.metainfo.com>; from marka@sea.checkpoint.com on Wed, Sep 19, 2001 at 02:55:13PM -0700
Xref: news.gmane.org gmane.linux.ports.parisc:12225

On Wed, Sep 19, 2001 at 02:55:13PM -0700, marka@sea.checkpoint.com wrote:
> I'm not sure where this problem is occuring, but I suspect it's telnetd.
> 
> telnet to your pa-risc linux box
> cd to the root directory
> execute 'ls -alR'
> 
> you'll lose your ptty and telnet session after a short while (seconds), but
> never at the the same place during the listing.  This does not occur over the
> serial console, but since that's only running at 9600 it may not be fast
> enough for the drop to occur.
>
Yes, it's telnetd. Replacing /usr/sbin/in.telnetd (telnetd_0.17-16_hppa.deb)
with a self-compiled one (from source netkit-telnet_0.16.orig.tar.gz with
potato patches) works for me. I modified Makefile in subdir telnetd to use
the correct login wrapper (the one from 0.17): 
   -DLOGIN_WRAPPER=\"/usr/lib/telnetlogin\"

HTH, Holger

P.S.: openssh works out of the box and is more secure
-- 
Holger Grothe  (Email: hgrothe@mathematik.tu-darmstadt.de)
Fachbereich Mathematik, TU Darmstadt




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Subject: Re: [parisc-linux] nmap -O -> kernel panic on 712
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Xref: news.gmane.org gmane.linux.ports.parisc:12226

--EVF5PPMfhYS0aIcm
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On Tue, Sep 18, 2001 at 07:38:55PM +0200, thunder7@xs4all.nl wrote:
> At this point, newbies like you and me can only hope one of the real
> kernel hackers sees this and says 'A-ha!'.
> 
> If I look at that code, I see a lot of (__u16 *)ptr and the like.
> 
> Am I correct in assuming those are all suspects and this is just another
> example of the missing unaligned access trap haunting us?

Far away from being a kernel hacker I tracked down the problem a little bit,
because I hate it if my favourite 'playing around' machine can be easily
crashed down by network. The following patch is not a solution in sense
of missing unaligned access trap(s) (I have much too few knowledge especially
of parisc assembler). It's a quick'n (really) dirty workaround which works
for me. The patch (for linux-2.4.9-pa24) breaks (__u32 *)ptr into two 
(__u16 *)ptr.

Comments are welcome.
   Holger
-- 
Holger Grothe  (Email: hgrothe@mathematik.tu-darmstadt.de)
Fachbereich Mathematik, TU Darmstadt

--EVF5PPMfhYS0aIcm
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="linux-2.4.9-pa24.diff"

*** net/ipv4/tcp_input.c.dist	Fri Aug 17 12:04:25 2001
--- net/ipv4/tcp_input.c	Wed Sep 19 19:25:18 2001
***************
*** 2051,2058 ****
--- 2051,2063 ----
  						if ((estab && tp->tstamp_ok) ||
  						    (!estab && sysctl_tcp_timestamps)) {
  							tp->saw_tstamp = 1;
+ #if defined (__hppa__)							
+ 							tp->rcv_tsval = (((__u32)ntohs(*(__u16 *)ptr))<<16) | ((__u32)ntohs(*(__u16 *)(ptr+2)));
+ 							tp->rcv_tsecr = (((__u32)ntohs(*(__u16 *)(ptr+4)))<<16) | ((__u32)ntohs(*(__u16 *)(ptr+6)));
+ #else
  							tp->rcv_tsval = ntohl(*(__u32 *)ptr);
  							tp->rcv_tsecr = ntohl(*(__u32 *)(ptr+4));
+ #endif
  						}
  					}
  					break;

--EVF5PPMfhYS0aIcm--




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From: Sonny Cook <sonny@aspersion.org>
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Subject: [parisc-linux] kernel 2.5.9-pa24 won't boot 735/125
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Hi,
I just tried my hand at cross compiling the parisc-linux kernel on my x86
box.  Something compiled, so I put the vmlinux on my 735/125 and tried to
boot it.  It went like this:

Hard booted.
palo ipl 0.94 sonny@foucault Wed Sep 19 22:52:46 MDT 2001
0/vmlinux32 3153422 bytes @ 0x48000
Partition Start(MB) End(MB) Id Type
1               1      16   f0 Palo
2              17    2046   83 ext2

Command line: 'HOME=/ TERM=LINUX console=tty root=/dev/sda2'

Kernel: partition 2 file /boot/vmlinux
ext2 block size 4096
ext2_mount(partition 2) returns 0
Opening /boot/vmlinux
ext2_open(/boot/vmlinux) = 3
ELF32 executable
Entry 001000d0 first 00100000 n 6
Segment 0 load 00100000 size 1714332 mediaptr 0x1000
Segment 1 load 002a4000 size 281768 mediaptr 0x1a4000
Segment 2 load 002ec000 size 376840 mediaptr 0x1e9000
Segment 3 load 0034c000 size 8192 mediaptr 0x246000
Segment 4 load 00350000 size 32768 mediaptr 0x248000
Segment 5 load 0038d684 size 88048 mediaptr 0x250684
branching to kernel entry point 0x001000d0

At this point, I can't even think where to begin looking for problems.
Any hints?

Thanks,
Sonny





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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: [parisc-linux] testandset
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parisc,

Trying to build glibc-2.2.4 on my 712/60

The build eventually halts because of the undefined "testandset"
---
/root/glibc_build/glibc-2.2.4/hppa-linux/obj/elf/ld.so.1: undefined reference to `testandset'
collect2: ld returned 1 exit status
make[4]: *** [/root/glibc_build/glibc-2.2.4/hppa-linux/obj/libio/tst_swscanf] Error 1
---

I've read all the docs for dpkg-dev, and yet the glibc debian stuff behaves
slightly different.

a) Unpack glibc 2.2.4, linux-threads, db1-add-on.
b) Patch to 2.2.4-1
c) Needed to comment hppa stuff back into 0list
d) Removed dl-fptr stuff from the hppa.dpatch (for now)
	= Added morally equivalent changes to locking macro in ./sysdeps/ia64/dl-fptr.c
	= testandset->try_lock
	= Though I'm scratching my head at hppa/dl-fptr.c?
	= Why is the ia64 stuff being touched anyway?
	
e) Packed it all back up as tar.bz2 (./debian rules seems to call for this)
f) Placed the tar.bz2's in the glibc-2.2.4 directory (so that they can be unpacked)
f) export LINUX_SOURCE=/usr/src/linux (no kernel-headers pakcage yet)
g) dpkg-buildpackage -uc -b -d (from within XXX/glibc-2.2.4)

glibc is almost as magical as the woman in the chair beside me watching 
me type this email.

Debian has a ./rules section ... women don't :}

Any thoughts hackers?
Would you like the full dpkg-buildpackage log?

c.





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Subject: [parisc-linux] Re: kernel 2.5.9-pa24 won't boot 735/125
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On Thu, Sep 20, 2001 at 01:33:09PM -0600, Sonny Cook wrote:
> Hi,
> I just tried my hand at cross compiling the parisc-linux kernel on my x86
> box.  Something compiled, so I put the vmlinux on my 735/125 and tried to
> boot it.  It went like this:
> 
> Hard booted.
> Command line: 'HOME=/ TERM=LINUX console=tty root=/dev/sda2'
> 
> Segment 5 load 0038d684 size 88048 mediaptr 0x250684
> branching to kernel entry point 0x001000d0
> 
> At this point, I can't even think where to begin looking for problems.
> Any hints?
> 
That is the point, where normally output on the serial console would
start appearing. Did you try both ports? Did you try 'console=ttyS0' in
the kernel command-line? Other than that, there are some references in
this list to a special 'debug-early' flag. Dig them out, and see if that
helps?

Good luck,
Jurriaan
-- 
The documentation is in Japanese.  Good luck.
	Rich 
GNU/Linux 2.4.9-ac10 SMP/ReiserFS 2x1402 bogomips load av: 0.53 0.14 0.04




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Subject: [parisc-linux] 712/60 boots fine
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Hi,

my 712 is running now. I've found my own mistake after many hours...

It is difficult to understand for a newbie, that PALO needs file system type
'F0' but this type is unknown by fdisk.
Or the 2. mistake, the partition where vmlinux is located must be lower or
equal 2 GByte.

Thanks

Andreas





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On Fri, Sep 21, 2001 at 10:38:24AM +0200, Andreas Hrtel wrote:
> Hi,
> 
> my 712 is running now. I've found my own mistake after many hours...
> 
> It is difficult to understand for a newbie, that PALO needs file system type
> 'F0' but this type is unknown by fdisk.

Partition type F0, not a file system type.  Recent fdisk versions do
know F0 as "Linux/PA-RISC boot".

> Or the 2. mistake, the partition where vmlinux is located must be lower or
> equal 2 GByte.

Yes, that has caught me too in the past, I guess it should be
checked by palo or the installer.

Richard





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Subject: [parisc-linux] C360 install fails
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Im using the 0.9.2 CD.  I have a C360 (512Meg RAM, 9 Gig hard drive) and
I removed the Graphics card from it and hooked it to a serial console.

The machine boots just fine into the installer.  I created that f0 partition,
a small /boot, a swap partition and the remaining disk as /

After that it makes me select a distro (I select sid as the documentation says)
then this hits:

         ++ Please Wait ++         
         |                                                            |         
         | Installing Drivers from                                    |         
         | /instmnt/debian/dists/sid/main/disks-hppa/current/64/drive |         
         | rs.tgz...                                                  |         
         |                                                            |         
                                                                                
         ioctl: LOOP_CLR_FD: No such device or address                          
    YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                            
PSW: 00000000000001001111111100001100                                           
r0-3     00000000 101fc000 101a5134 2fe06b60                                    
r4-7     00000000 00000000 10337010 10318684m Installation                      
r8-11    10318010 10318010 1030c010 1030c468                                    
r12-15   10337010 ffffffff 000000fd f0100000                                    
r16-19   10300580 f0000154 f000014c 0000000e                                    
r20-23   0000001f 000003e7 101a5c14 00000000                                    
r24-27   00000000 00000005 ffd05805 1028a010
r28-31   10335810 00000592 10300a80 101213f8
sr0-3    00000000 00000065 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101fc2bc 101fc2c0
 IIR: 0f40001c    ISR: a607ffff  IOR: 41505805
 ORIG_R28: 00000000


Any hints ?
-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




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Subject: Re: [parisc-linux] testandset
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On Thu, Sep 20, 2001 at 09:12:31PM -0400, Carlos O'Donell Jr. wrote:
> I've read all the docs for dpkg-dev, and yet the glibc debian stuff behaves
> slightly different.
> 
> a) Unpack glibc 2.2.4, linux-threads, db1-add-on.
> b) Patch to 2.2.4-1
> c) Needed to comment hppa stuff back into 0list
> d) Removed dl-fptr stuff from the hppa.dpatch (for now)
> 	= Added morally equivalent changes to locking macro in ./sysdeps/ia64/dl-fptr.c
> 	= testandset->try_lock
> 	= Though I'm scratching my head at hppa/dl-fptr.c?
> 	= Why is the ia64 stuff being touched anyway?

because we're removing the testandset macro, replacing it with try_lock.

> e) Packed it all back up as tar.bz2 (./debian rules seems to call for this)

No, definitely not, I don't know why you think you need to do that.

> f) Placed the tar.bz2's in the glibc-2.2.4 directory (so that they can be unpacked)
> f) export LINUX_SOURCE=/usr/src/linux (no kernel-headers pakcage yet)
> g) dpkg-buildpackage -uc -b -d (from within XXX/glibc-2.2.4)

Here's what you ned to do:

dpkg-source -x *dsc
cd glibc-*
frob 0lists & hppa.dpatch as above
put a copy of the kernel includes in /usr/src/linux/include rather than setting
LINUX_SOURCE
dpkg-buildpackage -B -a -rfakeroot

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] testandset
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I remember Wilcox saying:

"
Because we can't implement testandset atomically & efficiently on hppa.
The places which use testandset actually just need trylock.
"

Was the old testandset changed to try_lock in pt-machine.h for
hppa?

I see that they are the same asm statement (i.e. just an ldcw).

pt-machine.h:old:
testandset (int *spinlock)
{
  int ret;

  __asm__ __volatile__(
       "ldcw 0(%2),%0"
       : "=r"(ret), "=m"(*spinlock)
       : "r"(spinlock));

  return ret == 0;
}

pt-machine.h:new:
try_lock(__atomic_lock_t *spinlock)
{
  int ret;

  __asm__ __volatile__(
       "ldcw 0(%2),%0"
       : "=r"(ret), "=m"(*spinlock)
       : "r"(spinlock));

  return ret == 0;
}

Same...

I'm sitting scratching my head becaues the ./sysdeps/hppa/dl-fptr.c
is peppered with testandset, which used to be in pt-machine.h,
but is now called try_lock within pt-machine.h

Which is my current reason that glibc-2.2.4 failes to build
Because dl-fptr.c makes use of testandset, which is no longer 
in pt-machine.h.

Do I have something backwards?
I'm starting to think that I should take a look at dpkg-buildpackage,
and if I'm using it all properly.

---

Matthew,

Since I can't quite get to the point where zic barfs while 
walking the timezones... I'm not much help ;)


c.






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On Fri, Sep 21, 2001 at 11:37:00AM -0400, Carlos O'Donell Jr. wrote:
> I'm sitting scratching my head becaues the ./sysdeps/hppa/dl-fptr.c
> is peppered with testandset, which used to be in pt-machine.h,
> but is now called try_lock within pt-machine.h

um, the hppa.dpatch definitely does patch this.  perhaps you were
overzealous with trimming the ia64 part of the patch?

-- 
Revolutions do not require corporate support.




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> 
> because we're removing the testandset macro, replacing it with try_lock.
> 

Noted.

> > e) Packed it all back up as tar.bz2 (./debian rules seems to call for this)
> 
> No, definitely not, I don't know why you think you need to do that.
> 

Thus my belief that I'm using the dpkg-dev tools wrong.
I read the docs late at night... maybe I didn't read them at all,
maybe I just dreamt that I did? ;)

> dpkg-source -x *dsc
> cd glibc-*
> frob 0lists & hppa.dpatch as above
> put a copy of the kernel includes in /usr/src/linux/include rather than setting
> LINUX_SOURCE
> dpkg-buildpackage -B -a -rfakeroot

I will give it another go (I've done a few compiles already).

My 712/60 is painfully slow :} 
Any recommendations for a faster machine?

We're almost to the point of setting up (Paul is looking at it)
pmake to build glibc. Hey, we've got a cluster for a reason.

Has anyone on this list used fai with hppa on this list?
http://www.informatik.uni-koeln.de/fai/.
(Hrm.. I'll post to beowulf@beowulf.org)

c.





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Subject: Re: [parisc-linux] 712/60 boots fine
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   of "Fri, 21 Sep 2001 10:38:24 +0200." <000401c14278$c79760e0$0350a8c0@genesis> 
Xref: news.gmane.org gmane.linux.ports.parisc:12237

=?iso-8859-1?Q?Andreas_H=E4rtel?= wrote:
> It is difficult to understand for a newbie, that PALO needs file system type
> 'F0' but this type is unknown by fdisk.
> Or the 2. mistake, the partition where vmlinux is located must be lower or
> equal 2 GByte.

Both issues are documented in the palo documentation.
See "man palo" (which points to /usr/share/doc/palo/).
The install ISO's also had/have a README.INSTALL that tells one about
both issues as well.
(Kudos to Paul Bame - he did an excellent job with both)

Is there a more obvious place this should be documented?
(ie where did you look?)

> Thanks
> 
> Andreas

thanks,
grant




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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] testandset
Date: Fri, 21 Sep 2001 12:10:56 -0400
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To: Matthew Wilcox <willy@debian.org>
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> > I'm sitting scratching my head becaues the ./sysdeps/hppa/dl-fptr.c
> > is peppered with testandset, which used to be in pt-machine.h,
> > but is now called try_lock within pt-machine.h
> 
> um, the hppa.dpatch definitely does patch this.  perhaps you were
> overzealous with trimming the ia64 part of the patch?
>

Hrm. Maybe. I remember cutting out only the ia64 part.
I'll zip through the patch again.

<carlos goes to check>

Hrm. Time to start vaping source trees.
The only diff from the patches is the ia64 stuff. Which I've
fixed to use try_lock, so it's not necc anymore.

I am now sure that I've been using the dpkg tools incorrectly.
I will follow the steps you've outlined and do some more reading.

Thanks for the help M.

Cheers,
c. 




From - Thu Nov 08 21:19:16 2018
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From: Bdale Garbee <bdale@gag.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 712/60 boots fine
Date: Fri, 21 Sep 2001 10:42:51 -0600
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grundler@puffin.external.hp.com (Grant Grundler) writes:

> =?iso-8859-1?Q?Andreas_H=E4rtel?= wrote:
> > It is difficult to understand for a newbie, that PALO needs file system type
>> 'F0' but this type is unknown by fdisk.
>> Or the 2. mistake, the partition where vmlinux is located must be lower or
>> equal 2 GByte.
>
> Both issues are documented in the palo documentation.

Clearly, then, "just" having them documented is insufficient.

I noted when doing an install from the 0.9.2 CD myself the other day that we
paint a splash screen before disk partitioning explaining that there needs to
be a palo partition, but that splash screen doesn't mention the 2G issue.  
Perhaps it could be updated with some additional text?

Also, since cfdisk is the default partitioning tool called by the Debian install
process, if the definition of partition type F0 isn't already part of the 
list of partition types displayed by cfdisk when you pick the command to change
the partition type, perhaps it should get added?  It might well be disconcerting
to a new user without much Debian or hppa experience to have to type in a 
partition type that's not on the menu.

I think those two steps would improve the probability that folks are successful
installing.

Finally, it sounds as though the user-space palo executable is not checking all
of these constraints to warn the user about problems, though I haven't tried to
test that and so don't really know what it does or does not do.  It certainly
seems prudent for palo to do so... and give the user some guidance through
appropriate warning/error text about what to do to fix the problem.

In summary, I think we ought to be thinking about how to help the user get this
right beyond "just" making sure the constraints are documented.

Bdale




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From: rbradetich@uswest.net (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] Additional Address cleanup
Date: Fri, 21 Sep 2001 10:48:38 -0600
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--Nq2Wo0NMKNjxTN9z
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Hello parisc-linux hackers,

I have a small patch which allows the additional addresses to
be allocated dynamically instead of a static array.  The patch
itself is pretty simple, but I made one simplification that
I wanted to run by the experts before committing the patch.

The simplification I made was to remove the HPA from index
0 of the addr[] in the parisc_device.  I feel this is redundant
since the device already records the HPA with the hpa field.
By not including the HPA, it also saves a kmalloc on every
parisc device to store the HPA, and an additional kfree/kmalloc
when the device actually has additional addresses to store.

Currently, the only device that is using the additional
addresses is the STI driver, and it blindly reads from
addr[1] for the location of a graphics card.  Nothing else
besides the adding/printing of the additional addresses
every uses the addr field in the parisc device.

So can I safely remove the HPA from addr[0] as I've done with
the attached patch?  Or will I break future device support
if the HPA is not present?

Thanks,

- Ryan

P.S. I have tested this patch on C200+ with serial console,
712/100 with STI console, and compiled it at 64-bit.

--Nq2Wo0NMKNjxTN9z
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="addr.patch"

? addr.diff
? arch/parisc/kernel/Makefile.iotree
? arch/parisc/kernel/drivers.c.iotree
? arch/parisc/kernel/inventory.c.iotree
? arch/parisc/kernel/iotree.c
Index: arch/parisc/kernel/drivers.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/drivers.c,v
retrieving revision 1.24
diff -u -p -r1.24 drivers.c
--- arch/parisc/kernel/drivers.c	2001/09/18 01:14:18	1.24
+++ arch/parisc/kernel/drivers.c	2001/09/21 16:21:46
@@ -174,30 +174,6 @@ int get_num_pa_dev(void)
 	return i;
 }
 
-/**
- * add_pa_dev_addr - Add an additional address to the list of addresses of a HP device
- * @hp_device: the PA-RISC device structure
- * @addr: the address to be added
- */
-int add_pa_dev_addr(struct parisc_device *hp_device, unsigned long addr)
-{
-	if (!hp_device || !addr)
-	    return 0;
-
-	if (hp_device->num_addrs >= MAX_ADD_ADDRS) {
-	    printk(KERN_ERR "%s: Too many additional addresses. "
-			"Increase the value of MAX_ADD_ADDRS in harware.h !\n",
-			__FUNCTION__ );
-	    return 0;
-	}
-
-	hp_device->addr[hp_device->num_addrs] = addr;
-	hp_device->num_addrs++;
-
-	return hp_device->num_addrs;
-}
-
-
 struct parisc_device *alloc_pa_dev(unsigned long hpa)
 {
 	int i, status;
@@ -243,13 +219,9 @@ struct parisc_device *alloc_pa_dev(unsig
 		strncpy(dev->name, name, sizeof(dev->name)-1);
 	}
 
-	/* add the hpa of this module as the first additional address */
-	add_pa_dev_addr(dev, hpa);
-
 	num_devices++;
 
 	write_unlock(&pa_lock);
-
 	return dev;
 }
 
Index: arch/parisc/kernel/inventory.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/inventory.c,v
retrieving revision 1.35
diff -u -p -r1.35 inventory.c
--- arch/parisc/kernel/inventory.c	2001/09/18 16:12:08	1.35
+++ arch/parisc/kernel/inventory.c	2001/09/21 16:21:46
@@ -15,6 +15,8 @@
 
 #include <linux/types.h>
 #include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
 #include <linux/mm.h>
 #include <asm/hardware.h>
 #include <asm/io.h>
@@ -30,7 +32,7 @@
 
 int pdc_type = PDC_TYPE_ILLEGAL;
 
-void setup_pdc(void)
+void __init setup_pdc(void)
 {
 	long status;
 	unsigned int bus_id;
@@ -108,9 +110,9 @@ void setup_pdc(void)
 
 #define PDC_PAGE_ADJ_SHIFT (PAGE_SHIFT - 12) /* pdc pages are always 4k */
 
-static void set_pmem_entry(physmem_range_t *pmem_ptr,
-			   unsigned long start,
-			   unsigned long pages4k)
+static void __init
+set_pmem_entry(physmem_range_t *pmem_ptr, unsigned long start,
+	       unsigned long pages4k)
 {
 	/* Rather than aligning and potentially throwing away
 	 * memory, we'll assume that any ranges are already
@@ -129,7 +131,7 @@ static void set_pmem_entry(physmem_range
 	pmem_ptr->pages = (pages4k >> PDC_PAGE_ADJ_SHIFT);
 }
 
-void do_pagezero_memconfig(void)
+void __init do_pagezero_memconfig(void)
 {
 	unsigned long npages;
 
@@ -168,7 +170,8 @@ void do_pagezero_memconfig(void)
 **
 */
 
-static int pat_query_module(ulong pcell_loc, ulong mod_index)
+static int __init 
+pat_query_module(ulong pcell_loc, ulong mod_index)
 {
 	pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
 	pdc_pat_cell_mod_maddr_block_t io_pdc_cell;
@@ -272,7 +275,7 @@ static int pat_query_module(ulong pcell_
 
 #define PAT_MAX_RANGES (4 * MAX_PHYSMEM_RANGES)
 
-static void do_pat_memconfig(void)
+static void __init do_pat_memconfig(void)
 {
 	unsigned long actual_len;
 	struct pdc_pat_pd_addr_map_entry mem_table[PAT_MAX_RANGES+1];
@@ -338,7 +341,7 @@ static void do_pat_memconfig(void)
 	}
 }
 
-static int do_pat_inventory(void)
+static int __init do_pat_inventory(void)
 {
 	int status;
 	ulong mod_index = 0;
@@ -367,7 +370,7 @@ static int do_pat_inventory(void)
 
 /* We only look for extended memory ranges on a 64 bit capable box */
 
-static void do_system_map_memconfig(void)
+static void __init do_system_map_memconfig(void)
 {
 	struct pdc_memory_table_raddr r_addr;
 	struct pdc_memory_table mem_table[MAX_PHYSMEM_RANGES];
@@ -416,8 +419,9 @@ static void do_system_map_memconfig(void
 
 /* All of the older legacy box (32 bit only) code goes here */
 
-static struct parisc_device *legacy_create_device(struct pdc_memory_map *r_addr,
-		struct pdc_module_path *module_path)
+static struct parisc_device * __init 
+legacy_create_device(struct pdc_memory_map *r_addr,
+		     struct pdc_module_path *module_path)
 {
 	struct parisc_device *dev;
 	int status = pdc_mem_map_hpa(r_addr, module_path);
@@ -441,7 +445,7 @@ static struct parisc_device *legacy_crea
  * sub-devices which are discovered by setting bc[5] to 0 and bc[4] to the
  * module, then trying all possible functions.
  */
-int do_legacy_inventory(void)
+int __init do_legacy_inventory(void)
 {
 	int mod, num = 0;
 	for (mod = 0; mod < 16; mod++) {
@@ -509,13 +513,56 @@ int do_native_bus_walk(unsigned long hpa
 	return num;
 }
 
-static int do_system_map_inventory(void)
+/**
+ * add_system_map_addresses - Add additional addresses to the parisc device.
+ * @dev: The parisce device.
+ * @num_addrs: Then number of addresses to add;
+ * @module_instance: The system_map module instance.
+ *
+ * This function adds any additional addresses reported by the system_map
+ * firmware to the parisc device.
+ */
+static __init void
+add_system_map_addresses(struct parisc_device *dev, int num_addrs, 
+			 int module_instance)
+{
+	int i;
+	long status;
+	struct pdc_system_map_addr_info addr_result;
+
+	dev->addr = kmalloc(sizeof(unsigned long), num_addrs);
+	if(!dev->addr) {
+		printk(KERN_ERR "%s %s(): memory allocation failure\n",
+		       __FILE__, __FUNCTION__);
+		return;
+	}
+
+	for(i = 0; i < num_addrs; ++i) {
+		status = pdc_system_map_find_addrs(&addr_result, 
+						   module_instance, i);
+		if(PDC_RET_OK == status) {
+			dev->addr[dev->num_addrs] = (unsigned long)addr_result.mod_addr;
+			dev->num_addrs++;
+		} else {
+			printk(KERN_WARNING 
+			       "Bad PDC_FIND_ADDRESS status return (%ld) for index %d\n",
+			       status, i);
+		}
+	}
+}
+
+/**
+ * do_system_map_inventory - Retrieve firmware devices via SYSTEM_MAP.
+ *
+ * This function attempts to retrieve and register all the devices firmware
+ * knows about via the SYSTEM_MAP PDC call.
+ */
+static int __init do_system_map_inventory(void)
 {
-	int i, j, num;
+	int i, num;
 	long status;
 	struct parisc_device *dev;
 	struct pdc_system_map_mod_info module_result;
-	struct pdc_system_map_addr_info addr_result;
 	struct pdc_module_path module_path;
 
 	/* So the idea here is to simply try one SYSTEM_MAP call.  If 
@@ -528,41 +575,31 @@ static int do_system_map_inventory(void)
 	num = 0;
 	for (i = 0; status != PDC_RET_NE_PROC && status != PDC_RET_NE_MOD; ++i) {
 
-		status = pdc_system_map_find_mods(&module_result, &module_path, i);
+		status = pdc_system_map_find_mods(&module_result, 
+						  &module_path, i);
 		if (status != PDC_RET_OK)
 			continue;
 		
-		dev = alloc_pa_dev((unsigned long) module_result.mod_addr);
-		if (!dev)
+		dev = alloc_pa_dev((unsigned long)module_result.mod_addr);
+		if(!dev)
 			continue;
 		
 		register_parisc_device(dev);
 		++num;
 
 		/* if available, get the additional addresses for a module */
-		if (!module_result.add_addrs)
+		if(!module_result.add_addrs)
 			continue;
 
-		for (j = 1; j <= module_result.add_addrs; ++j) {
-			status = pdc_system_map_find_addrs(&addr_result, i, j);
-			if (status == PDC_RET_OK) {
-				add_pa_dev_addr(dev, (unsigned long)
-						addr_result.mod_addr);
-			} else {
-				printk(KERN_WARNING 
-					"Bad PDC_FIND_ADDRESS status return (%ld) for index %d\n",
-					status, j);
-				status = PDC_RET_OK;	/* reset status for outer loop */
-			}
-		}
-	} /* end of main loop */
+		add_system_map_addresses(dev, module_result.add_addrs, i);
+	}
 
 	/* Walk the system bus */
 	num += do_native_bus_walk(FPA);
 	return num;
 }
 
-void do_memory_inventory(void)
+void __init do_memory_inventory(void)
 {
 	switch (pdc_type) {
 
@@ -589,7 +626,7 @@ void do_memory_inventory(void)
 	}
 }
 
-void do_device_inventory(void)
+void __init do_device_inventory(void)
 {
 	int num;
 
Index: drivers/video/sti/sticore.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/video/sti/sticore.c,v
retrieving revision 1.22
diff -u -p -r1.22 sticore.c
--- drivers/video/sti/sticore.c	2001/08/22 13:23:47	1.22
+++ drivers/video/sti/sticore.c	2001/09/21 16:21:51
@@ -833,7 +833,11 @@ out_err:
  */
 static int __init sticore_pa_init(struct parisc_device *dev)
 {
-	unsigned long rom = dev->addr[1];
+	unsigned long rom;
+
+	if(dev->num_addrs) {
+		rom = dev->addr[0];
+	}
 	if (!rom) {
 		rom = PAGE0->proc_sti;
 	}
Index: include/asm-parisc/hardware.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/hardware.h,v
retrieving revision 1.21
diff -u -p -r1.21 hardware.h
--- include/asm-parisc/hardware.h	2001/09/18 01:14:19	1.21
+++ include/asm-parisc/hardware.h	2001/09/21 16:21:52
@@ -21,9 +21,6 @@ struct hp_hardware {
 	const char	name[80];	/* The hardware description */
 };
 
-
-#define MAX_ADD_ADDRS	5	/* 5 additional address ranges should be sufficient */

From - Thu Nov 08 21:19:16 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 712/60 boots fine
Date: Fri, 21 Sep 2001 11:31:51 -0600
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To: Bdale Garbee <bdale@gag.com>
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In-Reply-To: Message from Bdale Garbee <bdale@gag.com> 
   of "Fri, 21 Sep 2001 10:42:51 MDT." <87g09gpkac.fsf@rover.gag.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:12241

Bdale Garbee wrote:
> Clearly, then, "just" having them documented is insufficient.

Agreed - that's why I asked Andreas where he looked.

> I noted when doing an install from the 0.9.2 CD myself the other day that we
> paint a splash screen before disk partitioning explaining that there needs to
> be a palo partition, but that splash screen doesn't mention the 2G issue.  
> Perhaps it could be updated with some additional text?

Excellent idea. Who knows where the disk partitioning text is?
(and can someone sign up to "fix" it?)
Or perhaps Andreas can file a bug report? Where?

> In summary, I think we ought to be thinking about how to help the user get
> this right beyond "just" making sure the constraints are documented.

Certainly. But we had to start someplace. I'm happy Paul wrote
*any* documentation - an excellent set of documentation no less
and packaged the whole mess.

IMHO, new folks need to get involved for stuff like palo enhancements.
I'm sure Paul would welcome any patches people cook up.

Most of the original developers have moved on to other things and aren't
actively contributing in new features or enhancing existing documents/code.
This evolution seems natural since the types of issues outstanding today
are quite different than those from one or two years ago.


thanks,
grant




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From: Albert Strasheim <fullung@ilink.nis.za>
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Good day,

This message was also sent to debian-hppa. I was wondering anyone on
this list had any ideas?

Regards,

Albert

----- Forwarded message from Albert Strasheim <fullung@ilink.nis.za> -----

From: Albert Strasheim <fullung@ilink.nis.za>
Subject: Re: Getting up and running (whoo!)
To: debian-hppa@lists.debian.org

Greetings,

It boots! Or something :-) After borrowing some terminators from my
friend, I have the following success to report:

I've managed to boot my 720/50 using Linux 2.4.9-pa20 (not -pa22 as I
stated in my original post)  over the LAN (with a make palo lifimage),
using a combination of rbootd (for the lifimage), bootpd (for the IP
address and such), and the userspace nfs daemon for the
baseplus-20010404.tar.gz NFS root.

The boot-up went as follows:

(c) Copyright.  Hewlett-Packard Company.  1991.
All rights reserved.

PDC ROM rev. 2.3
IODC ROM rev. 2.2
96 MB of memory configured and tested.


Selecting a system to boot.
To stop selection process, press and hold the ESCAPE key.

Selection process stopped.

Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Search terminated.



b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu: b lan

Trying lan.000000-000000.0.0
Boot path initialized.
Attempting to load IPL.


Hard booted.
palo ipl 0.94 fullung@dogbert Sun Sep 16 00:52:51 SAST 2001
0/vmlinux32 3149283 bytes @ 0x7800

Command line: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.1.1 ip=bootp  console=ttyS0'

Kernel: partition 0 file /vmlinux
Warning: kernel name doesn't end with 32 or 64... Guessing 32
ELF32 executable
Entry 001000d0 first 00100000 n 5
Segment 0 load 00100000 size 1714304 mediaptr 0x1000
Segment 1 load 002a4000 size 281768 mediaptr 0x1a4000
Segment 2 load 002ec000 size 385024 mediaptr 0x1e9000
Segment 3 load 00350000 size 32768 mediaptr 0x247000
Segment 4 load 0038d684 size 88032 mediaptr 0x24f684
branching to kernel entry point 0x001000d0
Linux version 2.4.9-pa20 (fullung@dogbert) (gcc version 3.0.2 20010829 (prerelease)) #6 Sun Sep 16 13:45:08 SAST 2001
FP[0] enabled: Rev 3 Model 0
The 32-bit Kernel has started...
Determining PDC firmware type: Older Legacy Box
model	00002000 00000481 00000000 00000000 77544852 000011f4 00000004 0000000d 00000000
vers	00000003
CPUID	vers 0 rev 0
model	9000/720
Total Memory: 96 Mb
On node 0 totalpages: 24576
zone(0): 24576 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf8000000, versions 0x4, 0x0, 0x77
2. Cobra Core BA (11) at 0xf082f000, versions 0x4, 0x0, 0x70
3. Cobra Core SCSI (10) at 0xf0825000, versions 0x4, 0x0, 0x71
4. Cobra Core LAN (802.3) (10) at 0xf0826000, versions 0x4, 0x0, 0x72
5. Cobra Core HIL (10) at 0xf0821000, versions 0x4, 0x0, 0x73
6. Cobra Core RS-232 (10) at 0xf0823000, versions 0x4, 0x0, 0x75
7. Cobra Core RS-232 (10) at 0xf0822000, versions 0x4, 0x0, 0x75
8. Cobra Core Centronics (10) at 0xf0824000, versions 0x4, 0x0, 0x74
9. Cobra (720) (0) at 0xfffbe000, versions 0x200, 0x0, 0x4
10. Cobra (1) at 0xfffbf000, versions 0x13, 0x0, 0x9
That's a total of 10 devices.
CPU(s): 1 x PA7000 (PCX-S) at 50.000000 MHz
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=10.0.1.1 ip=bootp  console=ttyS0
Console: colour dummy device 160x64
Calibrating delay loop... 49.76 BogoMIPS
Memory: 93884k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
Asp version 1 at 0xf0800000 found.
LED (ASP-style) display at f0800020 registered
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
STI byte mode ROM at f8000000, hpa=f8000000
STI byte mode ROM, id 26d1488c-40a00499, conforms to spec rev. 8.02
STI device: HPA1924A
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Found HIL at 0xf0821000, IRQ 94
HIL: keyboard found at id 0
HIL: keymap loaded.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0826000, IRQ 87
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 25 4B E1 IRQ 87.
82596.c $Revision: 1.22 $
SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
sticonsole_init: searching for STI ROMs
Console: switching to colour STI console 160x64
md: linear personality registered
md: raid0 personality registered
md: raid1 personality registered
md: raid5 personality registered
raid5: measuring checksumming speed
   8regs     :    33.600 MB/sec
   8regs_prefetch:    40.800 MB/sec
   32regs    :    32.400 MB/sec
   32regs_prefetch:    41.600 MB/sec
raid5: using function: 32regs_prefetch (41.600 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
eth0: link ok.
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 10.0.1.1, my address is 10.0.1.2
IP-Config: Complete:
      device=eth0, addr=10.0.1.2, mask=255.255.255.0, gw=255.255.255.255,
     host=bob, domain=, nis-domain=(none),
     bootserver=10.0.1.1, rootserver=10.0.1.1, rootpath=
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 10.0.1.1
Looking up port of RPC 100005/1 on 10.0.1.1
VFS: Mounted root (nfs filesystem) readonly.
INIT: version 2.78 booting
rcS(13): unaligned access to 0x0007dca3 at ip=0x0005d807
Not-handled unaligned insn 0x0cd31200
Unaligned handler failed, ret = -1 INIT: Entering runlevel: 2
<4>rc(16): unaligned access to 0x0007dca3 at ip=0x0005d807
Not-handled unaligned insn 0x0cd31200
Unaligned handler failed, ret = -1 <4>rc(17): unaligned access to 0x0007dca9 at ip=0x0005db23
Not-handled unaligned insn 0x0f131200
Unaligned handler failed, ret = -1 
Debian GNU/Linux testing/unstable
pehc base tarball 2001-04-04 see /home/demo/README for more info
bob login: 

Logging in as root or demo (I modified /etc/passwd to empty passwords)
just sits there, until you hit Ctrl-C 3 or 4 times, after which it
returns to the login prompt.

So this is where I'm stuck at the moment. The unaligned stuff also makes
me wonder... perhaps it is unable to execute bash?

What's next?

Regards,

Albert

P.S. There aren't currently any SCSI devices attached, but I doubt that
makes a difference...?

----- End forwarded message -----




From - Thu Nov 08 21:19:16 2018
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From: rbradetich@uswest.net (Ryan Bradetich)
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Subject: Re: [parisc-linux] [PATCH] Additional Address cleanup
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Hello parisc-linux hackers,

Rereading the patch, I spotted a bug in the kmalloc *sigh*.

> +	dev->addr = kmalloc(sizeof(unsigned long), num_addrs);

The kmalloc should look like this (I think).
	dev->addr = kmalloc(num_addrs * sizeof(unsigned long), GFP_KERNEL);

- Ryan




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On Fri, Sep 21, 2001 at 10:48:38AM -0600, Ryan Bradetich wrote:
> The simplification I made was to remove the HPA from index
> 0 of the addr[] in the parisc_device.  I feel this is redundant
> since the device already records the HPA with the hpa field.
> By not including the HPA, it also saves a kmalloc on every
> parisc device to store the HPA, and an additional kfree/kmalloc
> when the device actually has additional addresses to store.

I haven't had time to review the patch, but I think it's an excellent
idea to remove the duplicate hpa and addr[0] entries.  I was thinking
about doing it myself, but hadn't got round to checking it could be done.

I was also thinking about removing the `hpa' entry completely and using
struct resource to track the area claimed by the device.  I think we
want to do this in any case for the card-mode dino support.  This is a
later step, I think, so don't let this consideration slow you down.

-- 
Revolutions do not require corporate support.




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On Fri, Sep 21, 2001 at 11:31:51AM -0600, Grant Grundler wrote:
> Certainly. But we had to start someplace. I'm happy Paul wrote
> *any* documentation - an excellent set of documentation no less
> and packaged the whole mess.
> 
> IMHO, new folks need to get involved for stuff like palo enhancements.
> I'm sure Paul would welcome any patches people cook up.
> 
I guess that means me :-)

This is my current palo output:

jurriaan@pa8200:~$ sudo /sbin/palo
palo version 0.94 bame@c3k Sat Sep  8 12:33:24 MDT 2001
ELF32 executable
Partition Start(MB) End(MB) Id Type
1               1      31   f0 Palo
2              32    3846   83 ext2
3            3847    7661   83 ext2
4            7662    8678   82 swap
ipl: addr 16384 size 28672 entry 0x0
 ko 0x0 ksz 0 k64o 0x0 k64sz 0 rdo 0 rdsz 0
<2/boot/vmlinux-2.4.9-pa24 root=/dev/sda2 HOME=/>
ipl: addr 16384 size 28672 entry 0x0
 ko 0x44000 ksz 2853588 k64o 0x0 k64sz 0 rdo 0 rdsz 0
<2/boot/vmlinux-2.4.9-pa24 root=/dev/sda2 HOME=/>

Now if I understand correctly, palo must

- warn if there is no f0 partition
- warn if there is no ext2 partition in the first 2 Gb

The first is not that difficult, the relevant patch is here:

===================================================
diff -Br -b -U 3 -N palo/lib/diskpart.c palo-new/lib/diskpart.c
--- palo/lib/diskpart.c Fri Jun 15 12:05:10 2001
+++ palo-new/lib/diskpart.c     Fri Sep 21 22:37:54 2001
@@ -97,6 +97,7 @@
 {
     int i;
     const int mbshift = 20 - 9;
+    int f0_found = 0;

     printf("Partition Start(MB) End(MB) Id Type\n\r");
     for (i = 0; i < maxparts; i++)
@@ -110,6 +111,16 @@
                mptab[i].id == 0x83 ? "ext2" :
                        (mptab[i].id == 0x82 ? "swap" :
                                (mptab[i].id == 0xf0 ? "Palo" : "Unknown")));
+                if ( (mptab[i].id == 0xf0) &&
+                     (1 + ((mptab[i].start + mptab[i].length) >> mbshift) < 2048) )
+                  f0_found = 1;
+    }
+    if (f0_found == 0)
+    {
+        printf("WARNING: You have no partition with type f0 within the first 2 Gb of the disk.\n");
+        printf("palo needs this partition to store the bootloader and optional (recovery)\n");
+        printf("kernel/ramdisk. It's size should be 4 (minimal) to 16 (safe) Mb.\n");
+        printf("Read /usr/share/doc/palo/README for more information.\n");
     }
 }

===================================================

The second problem should probably be something like this:

===================================================
diff -Br -b -U 3 -N palo/palo/palo.c palo-new/palo/palo.c
--- palo/palo/palo.c    Thu Jun 21 12:05:38 2001
+++ palo-new/palo/palo.c        Fri Sep 21 23:14:48 2001
@@ -784,6 +792,20 @@
            }
            if (f0 == MAXPARTS)
                error(11);
+            if (strlen(commandline) > 1)
+            {
+                int bootpart=atoi(commandline);
+                if ((bootpart > 0) && (bootpart < MAXPARTS))
+                {
+                   /* 2^11 = 1048576 / 512 */
+                   if (1+((ptab[bootpart].start + ptab[bootpart].length) >> 11) >= 2048 )
+                   {
+                       printf("Warning: your kernel-image ('%s') is on a partition that isn't entirely below 2 Gb.\n",commandline);
+                       printf("Palo can't read files beyond 2 Gb on older machines. Read /usr/share/doc/palo/README for more informa
tion.\n");
+                   }
+                }
+            }
+
            print_ptab_pretty(ptab, MAXPARTS);

            if (0) printf("F0 partition start sector %d length %d\n",
===================================================

I'd appreciate pointers to improve this.

If this works out, perhaps adding reiserfs support to palo is next?
It works in yaboot (PPC boot-loader), after all.

Good luck,
Jurriaan
~
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test.out: unmodified: line 1
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test.out: unmodified: line 1

-- 
Your face is just a mask you wear,
but masks are hidden faces
	The Oysterband - The road to Santiago
GNU/Linux 2.4.9-ac10 SMP/ReiserFS 2x1402 bogomips load av: 0.00 0.00 0.00




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On Mon, Sep 17, 2001 at 08:33:12PM +0200, thunder7@xs4all.nl wrote:
> On Mon, Sep 17, 2001 at 04:55:01PM +0200, Francois Deppierraz wrote:
> > Hi kernel hackers !
> > 
> > My HP 712/60 with a 2.4.9-pa20 kernel crash with the following error
> > message when I portscan it using nmap -O (OS detection).
> > 
> > kswapd[4]: Unaligned data reference 28
> > 
> >      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > PSW: 00000000000001001111111000001111
> > r0-3o 00000000 10332810 1028b9e4 0000000a
> > r4-7o 100dfdb2 100ed148 0000000c 100dfd94
> > r8-11o 00000000 00000001 00020000 10ce6500
> > r12-15o 11fb09a0 00004400 00004800 43f02aa9
> > r16-19o 100eca00 00000000 00000c00 00000001
> > r20-23o 00000000 00000109 117ca000 0000000f
> > r24-27o 00000000 100ed148 10ce6500 102f0010
> > r28-31o 117ca160 00000040 100ed400 1012e6d8
> > sr0-3o 00000000 00000002 00000000 00000002
> > sr4-7o 00000000 00000000 00000000 00000000
> > 
> > IASQ: 00000000 00000000 IAOQ: 10281658 1028165c
> >  IIR: 0c801093    ISR: 00000000  IOR: 100dfdb2
> >  CPU:        0   CR30: 100ec000 CR31: 103a0000
> >  ORIG_R28: 00000000
> > Kernel Panic: Aiee, killing interrupt handler!
> > In interrupt handler - not syncing
> > 
Why isn't the code in arch/parisc/kernel/unaligned.c activated for this?
I found some references in the 2001-06 archive to this file, which seems
to work for 64-bits kernels (which I haven't tested) but not for
32-bits.

Can any of the guru's point some newbies in the right direction?
unaligned.c exists, and is pointed to in traps.c, so there must be some
code in it that doesn't work. I can run the test-program that was posted
in 2001-06 just fine.


#include <stdio.h>

struct data_t {
        unsigned long a;
        unsigned long b;
};

int main(int argc, char **argv)
{
        struct data_t data;
        unsigned char *t;
        unsigned long l;
        int i;

        data.a = 0x12345678;
        data.b = 0x87654321;

        t = (unsigned char *)(&data)+1;
        l = *((unsigned long *)t);
        printf("l = 0x%08lx\n\n\n", l);

        printf("expected result is: 0x");
        for (i = 0; i < sizeof(unsigned long); i++)
                printf("%x", *(t+i));
        printf("\n");

        printf("testing store...\n");
        *((unsigned long *)t) = 0x13572468;

        l = *((unsigned long *)t);
        printf("l = 0x%08lx\n", l);

        return 0;
}

And it prints:

jurriaan@pa8200:~$ cc test.c
./a.jurriaan@pa8200:~$ ./a.out
l = 0x34567887
expected result is: 0x34567887
testing store...
l = 0x13572468

which seems to be what is expected.

I can see that in unaligned.c, the part for in-kernel traps is #if 0'ed
out, with a big TODO. What is there TODO?

I'm willing to do stupid work, and test my machine 30 times in a row, if
someone can point me in the right direction?

Thanks,
Jurriaan
-- 
It is a matter of words. In my birth language there are more ifs than
whens, but I must make a choice every time I speak a sentence in English.
I try to choose the happier way of saying things, so that my own words
will not weigh me down like stones.
	!Xabbu in Tad Williams' Otherland
GNU/Linux 2.4.9-ac10 SMP/ReiserFS 2x1402 bogomips load av: 0.00 0.00 0.00




From - Thu Nov 08 21:19:16 2018
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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] C360 install fails
Date: Fri, 21 Sep 2001 21:38:01 +0100
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To: Richard Allen <ra@hp.is>
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On Fri, Sep 21, 2001 at 01:53:35PM +0000, Richard Allen wrote:
> Im using the 0.9.2 CD.  I have a C360 (512Meg RAM, 9 Gig hard drive) and
> I removed the Graphics card from it and hooked it to a serial console.
> 
> The machine boots just fine into the installer.  I created that f0 partition,
> a small /boot, a swap partition and the remaining disk as /
> 
> After that it makes me select a distro (I select sid as the documentation says)
> then this hits:
> 
>          ++ Please Wait ++         
>          |                                                            |         
>          | Installing Drivers from                                    |         
>          | /instmnt/debian/dists/sid/main/disks-hppa/current/64/drive |         
>          | rs.tgz...                                                  |         

One thing that's wrong there, you need to install the 32 bit kernel and
modules for a C360.  I don't imagine that is the cause of your problem
though.  Although a C360 will run 64 bit, that isn't completely supported
under linux yet.

>                                                                                 
>          ioctl: LOOP_CLR_FD: No such device or address                          
>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                            
> PSW: 00000000000001001111111100001100                                           
> r0-3     00000000 101fc000 101a5134 2fe06b60                                    
> r4-7     00000000 00000000 10337010 10318684m Installation                      
> r8-11    10318010 10318010 1030c010 1030c468                                    
> r12-15   10337010 ffffffff 000000fd f0100000                                    
> r16-19   10300580 f0000154 f000014c 0000000e                                    
> r20-23   0000001f 000003e7 101a5c14 00000000                                    
> r24-27   00000000 00000005 ffd05805 1028a010
> r28-31   10335810 00000592 10300a80 101213f8
> sr0-3    00000000 00000065 00000000 00000000
> sr4-7    00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 101fc2bc 101fc2c0
>  IIR: 0f40001c    ISR: a607ffff  IOR: 41505805
>  ORIG_R28: 00000000

101fc2b8 T _gsc_readb
101fc2cc T _gsc_readw

101a5118 t serial_in
101a5134 t .L687
101a5160 t .L693
101a5160 t serial_out

So it looks like serial_in() called _gsc_readb(0xffd05805).

On booting, my C360 says

1. Raven U/L2 Dino RS-232 (10) at 0xf2003000, versions 0x6, 0x0, 0x8c, 0x0, 0x0 
3. Raven+ w SE FWSCSI Core RS-232 (10) at 0xffd05000, versions 0x56, 0x0, 0x8c, 0x0, 0x0
...
ttyS00 at iomem 0xffd05800 (irq = 154) is a 16550A 
...

So 0xffd05805 looks like a reasonable address for it to try and access.

Does it crash at the same place if you try again?


Richard




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On Fri, Sep 21, 2001 at 10:42:51AM -0600, Bdale Garbee wrote:
> grundler@puffin.external.hp.com (Grant Grundler) writes:
> 
> > =?iso-8859-1?Q?Andreas_H=E4rtel?= wrote:
> > > It is difficult to understand for a newbie, that PALO needs file system type
> >> 'F0' but this type is unknown by fdisk.
> >> Or the 2. mistake, the partition where vmlinux is located must be lower or
> >> equal 2 GByte.
> >
> > Both issues are documented in the palo documentation.
> 
> Clearly, then, "just" having them documented is insufficient.
> 
> I noted when doing an install from the 0.9.2 CD myself the other day that we
> paint a splash screen before disk partitioning explaining that there needs to
> be a palo partition, but that splash screen doesn't mention the 2G issue.  
> Perhaps it could be updated with some additional text?

Done.  Now says:

  | PALO, the PArisc LOader, requires a partition of type 'f0' on the disk   #  
  | it is loaded from.  Therefore, if this disk will contain the boot        #  
  | loader you must create a partition of type 'f0' of at least 16MB.        #  
  |                                                                          #  
  | A further important restriction is that the partition you load your      #  
  | kernel from must reside within the first 2GB of your disk.  The kernel   #  
  | lives in /boot, so you can either keep your root file system within the  #  
  | first 2GB, or you can create a small partition and mount it as /boot.    #  

> Also, since cfdisk is the default partitioning tool called by the Debian install
> process, if the definition of partition type F0 isn't already part of the 
> list of partition types displayed by cfdisk when you pick the command to change
> the partition type, perhaps it should get added?  It might well be disconcerting

                                  cfdisk 2.11h

                              Disk Drive: /dev/sda
                             Size: 9100044288 bytes
              Heads: 64   Sectors per Track: 32   Cylinders: 8678

    Name        Flags      Part Type  FS Type          [Label]        Size (MB)
 ------------------------------------------------------------------------------
    sda1                    Primary   Linux swap                         135.27 
    sda2                    Primary   Linux/PA-RISC boot                  17.83
    sda3                    Primary   Linux ext2                        1999.64
                            Pri/Log   Free Space                        6946.82


So F0 is recognised as "Linux/PA-RISC boot" now, at least.

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] C360 install fails
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BTW, I just tried an install using a 2.4.9 kernel from about September
13th.  And it failed while formatting a 2GB partition:


Superblock backups stored on blocks: 
        32768, 98304, 163840, 229376, 294912

Writing inode tables: done
Writing superbKernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping resources.
In interrupt handler - not syncing
locks and filesystem accounting information: 


Hopefully we'll get a fix for that committed before I roll the next
ISO.

Richard





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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] nfsroot login problems on 720/50
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> Good day,
> 
> This message was also sent to debian-hppa. I was wondering anyone on
> this list had any ideas?
> 
> Regards,
> 
> Albert
> 
> 
> I've managed to boot my 720/50 using Linux 2.4.9-pa20 (not -pa22 as I
> stated in my original post)  over the LAN (with a make palo lifimage),
> using a combination of rbootd (for the lifimage), bootpd (for the IP
> address and such), and the userspace nfs daemon for the
> baseplus-20010404.tar.gz NFS root.
>

The rbootd is good.
The lifimage is good.
The bootp server is good.

The baseplus root tarball is bad.

Coming from a similar situation, I had to manually change the
permissions on the baseplus tarball to get it to work. 
Though I clearly can't remember what else I had to do... it was
quite some time ago. I'm now using apt-get and the latest ISO to
install machines.

Questions:

- Are you using devfs?
- Tried just letting the login prompt sit for a while after attempting
  to login? (Usually the error might come after a _long_ time).

On another note, you should try the cdrom installer, since it's
much better and people have put a lot of work into it.

Cheers,
Carlos. 




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Hello,

On Fri, 21 Sep 2001, Carlos O'Donell Jr. wrote:

> The rbootd is good.
> The lifimage is good.
> The bootp server is good.
>=20
> The baseplus root tarball is bad.

Should I try the base tarball (same date... :-( ) or is that known to be
bad too?
=20
> Coming from a similar situation, I had to manually change the
> permissions on the baseplus tarball to get it to work.=20
> Though I clearly can't remember what else I had to do... it was
> quite some time ago. I'm now using apt-get and the latest ISO to
> install machines.
>=20
> Questions:
>=20
> - Are you using devfs?

I have not modified anything in the nfsroot to use devfs, and I don't
think it's in the make oldconfig kernel I'm using, so I'd guess not.

> - Tried just letting the login prompt sit for a while after attempting
>   to login? (Usually the error might come after a _long_ time).

Yes, it's been sitting for many hours without any luck.

> On another note, you should try the cdrom installer, since it's
> much better and people have put a lot of work into it.

I have tried the CD-ROM installer (0.9.2), but kernel on there wouldn't
let me get past where init starts (more of this unaligned trap
goodness, according to the debian-hppa folks); init was running in some
kind of loop or something.

Should I perhaps try to boot 2.4.9-pa22, and modify the PALO arguments
to boot from this CD-ROM?

Regards,

Albert

P.S. Are there any 720/50's out there that actually work? :-)

--LQksG6bCIzRHxTLp
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From: "Tino Hirschmann" <tino.hirschmann@stud.fh-regensburg.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problem installing new kernel
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Hi,

i got palinux-0.9.2 running on my HP 715/80. I compiled the kernel as
discribed on the webpage.
But what do i have to do after i did make palo ?
I think make zlilo doesn't work here .-)

Thanks

Tino





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On Sat, Sep 22, 2001 at 02:42:12AM +0200, Tino Hirschmann wrote:
> Hi,
> 
> i got palinux-0.9.2 running on my HP 715/80. I compiled the kernel as
> discribed on the webpage.
> But what do i have to do after i did make palo ?
> I think make zlilo doesn't work here .-)
> 
Edit /etc/palo.conf and run /sbin/palo

Good luck,
Jurriaan
-- 
This phantom which lived in my mind possessed qualities which I thought must be
innate to a creature of such grace and intelligence.
...
This impossibly delightful creature is gone, and now is even hard to remember.
        Jack Vance - Lyonesse II - The Green Pearl
GNU/Linux 2.4.9-ac10 SMP/ReiserFS 2x1402 bogomips load av: 0.45 0.12 0.04




From - Thu Nov 08 21:19:17 2018
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Subject: [parisc-linux] Debian bootfloppies with -pa22 fails on 720/50
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Hello,

I followed Richard Hirst's instructions:

 palo -f /dev/null -k vmlinux -r root.bin -s lifimage \
        -c "0/linux HOME=/ root=/dev/ram initrd=0/ramdisk"

to modify the current Debian binary-hppa root.bin to boot 2.4.9-pa22 on
my 720/50 (via rbootd lifimage). However, the problems from the 0.9.2
CD-ROM install returned:

Linux version 2.4.9-pa22 (fullung@dogbert) (gcc version 3.0.2 20010829 (prerelease)) #8 Sat Sep 22 02:57:21 SAST 2001
...
RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem).
handle_interruption() pid=1 command='init'
handle_interruption() pid=1 command='init'
handle_interruption() pid=1 command='init'
...

I'd be happy to test ANY (ANY! :-)) patches the great hackers of the
PA-RISC domain might have to offer. My HP is depending on you to get the
sweetest distro in the world installed! :-)

Regards,

Albert

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Xref: news.gmane.org gmane.linux.ports.parisc:12256

On Fri, Sep 21, 2001 at 09:38:01PM +0100, Richard Hirst wrote:

> On booting, my C360 says
> 
> 1. Raven U/L2 Dino RS-232 (10) at 0xf2003000, versions 0x6, 0x0, 0x8c, 0x0, 0x0 
> 3. Raven+ w SE FWSCSI Core RS-232 (10) at 0xffd05000, versions 0x56, 0x0, 0x8c, 0x0, 0x0
> ...
> ttyS00 at iomem 0xffd05800 (irq = 154) is a 16550A 
> ...
> 
> So 0xffd05805 looks like a reasonable address for it to try and access.
> 
> Does it crash at the same place if you try again?

I didnt give up and I tried all kinds og combinations.  I noticed
when I was booting off the CD (for the tenth time I think) that
the install kernel was 32 bit so I opted for that one a I got further.
I actually got so far as it began installing packages, but crashed
at random places in the package installation.

I then loopback mounted the ISO image and NFS exported it and did the
install via NFS and then finally it worked.

Then when I had the system up and running I was adding extra packages
(telnetd, openssl and openssh) when it crashed again.

I now have it in a pretty good state. Ive "apt-get upgrade" every package
and installed all the development environment and compiled yesterdays
kernel snapshot.

bofh:~# uname -a
Linux bofh 2.4.9-pa24 #2 Fri Sep 21 20:40:31 UTC 2001 parisc unknown
bofh:~# uptime
 16:29:35 up 19:10,  1 user,  load average: 0.00, 0.00, 0.00

Not a single crash since I booted the new kernel so Im very hopeful
that Ive gained some stability.

Now to find an area I can contribute to :)

-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




From - Thu Nov 08 21:19:17 2018
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From: Tilman Baumann <tilli@tilli.external.hp.com>
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Subject: [parisc-linux] hp715-50 scorpio
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hi, can anyone of you tell me, if it makes sense to install parisc-linux on 
my machine?
I have a hp715-50 scorpio.
Ore are there other os's better in this case? for example OpenBSD or hpux.

thx and sorry for my english.

 - please answer per email directly to me. because im not registered at this 
list. thx




From - Thu Nov 08 21:19:17 2018
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Subject: [parisc-linux] hp715-50 scorpio - this is the real emailaddress
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Sorry, i have sent this mail with a missconfigured MUA. sorry. 
hehe the original message.

----

hi, can anyone of you tell me, if it makes sense to install parisc-linux on 
my machine?
I have a hp715-50 scorpio.
Ore are there other os's better in this case? for example OpenBSD or hpux.

thx and sorry for my english.

 - please answer per email directly to me. because im not registered at this 
list. thx




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To: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Hello,

On Sat, 22 Sep 2001, Carlos O'Donell Jr. wrote:

> > 
> > Should I try the base tarball (same date... :-( ) or is that known to be
> > bad too?
> >  
> 
> In reality all those tarballs are old, glibc is old... it's all old.
> Usually the problem lies in a bad telnetd that was on those tarballs.
> I think I remember xcompiling telnetd and sticking it into the nfsroot.
> Remember that mounting an nfs root will cause the root to be a readonly
> fs. This raises some large issues, but should still allow you to login.

What if it is a rw,no_root_squash export? Or does the Debian initscript
not support remounting the nfsroot rw? Or is it a limitation of the
Linux kernel?
 
> > I have not modified anything in the nfsroot to use devfs, and I don't
> > think it's in the make oldconfig kernel I'm using, so I'd guess not.
> The nfsroot doesn't care about devfs. Though the kernel does.
> Try make menuconfig and enable devfs. Compile a new kernel, stick it
> in your tftp directory and reboot.

Okay, will do. I've enabled CONFIG_DEVFS_FS and CONFIG_DEVFS_MOUNT.
 
> > I have tried the CD-ROM installer (0.9.2), but kernel on there wouldn't
> > let me get past where init starts (more of this unaligned trap
> > goodness, according to the debian-hppa folks); init was running in some
> > kind of loop or something.
> > 
> 
> Same here with 712/60, 715/50, and 715/33 (though I haven't tested
> it fully since I had a root tarball that was serving the purpose).
> If you can get the system to a semi-running state, you can use apt
> to dist-upgrade to the latest everything. Which is what I've done.
> 
> Though I'm looking at fai.
> 
> > P.S. Are there any 720/50's out there that actually work? :-)
> 
> Check the site. See the hardware list. Find some 720/50 owners and
> email them :)

When booting with the old baseplus, I got the following messages:

INIT: version 2.78 booting
rcS(13): unaligned access to 0x0007dca3 at ip=0x0005d807
Not-handled unaligned insn 0x0cd31200
Unaligned handler failed, ret = -1 INIT: Entering runlevel: 2
<4>rc(16): unaligned access to 0x0007dca3 at ip=0x0005d807
Not-handled unaligned insn 0x0cd31200
Unaligned handler failed, ret = -1 <4>rc(17): unaligned access to
0x0007dca9 at 
ip=0x0005db23
Not-handled unaligned insn 0x0f131200
Unaligned handler failed, ret = -1 
Debian GNU/Linux testing/unstable
pehc base tarball 2001-04-04 see /home/demo/README for more info
bob login: 

Should these concern me, or not?

I'm going to try building a new nfsroot tarball with the latest debs.
Hopefully that will do the trick.

Regards,

Albert




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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: Re: [parisc-linux] nfsroot login problems on 720/50
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> 
> What if it is a rw,no_root_squash export? Or does the Debian initscript
> not support remounting the nfsroot rw? Or is it a limitation of the
> Linux kernel?
>  

Think about it ... rw nfsroot... multiple machines booting from that nfsroot.
Guess what happens?

Normally, when setting up a diskless system, each node will have their
own special area to write logs and setup temporary files.

> rcS(13): unaligned access to 0x0007dca3 at ip=0x0005d807
> Unaligned handler failed, ret = -1 INIT: Entering runlevel: 2
> <4>rc(16): unaligned access to 0x0007dca3 at ip=0x0005d807
> Not-handled unaligned insn 0x0cd31200
> Unaligned handler failed, ret = -1 <4>rc(17): unaligned access to
> 0x0007dca9 at 
> ip=0x0005db23
> Not-handled unaligned insn 0x0f131200
> Unaligned handler failed, ret = -1

I'm not sure how you are going to go about updating that root tarball.
(Rebuild it by hand?)

Though, the unaligned problems seem to be a big cause of your problems.
The 712's and 715's don't spew unaligned errors. I'm not sure what
processor the 720 has, and what might be the special cases.

Someone else on the list might better answer this.
Actually... the website has an HCL.

"Currently, most of the unlettered 700-series workstations (eg 712/715/735)"

Doesn't list the 720. Wonder why?

c. 




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Hello,

I've tried compiling a kernel with devfs, but I'm not having any luck.
I'm using xc-latest from about a week ago, and make palo dies with the
following message:

fs/fs.o: In function `devfs_alloc_major':
fs/fs.o(.text.devfs_alloc_major+0x5c): undefined reference to `__set_bit'
hppa-linux-ld: fs/fs.o(.text.devfs_alloc_major+0x5c): cannot find stub entry 00000571___set_bit+0
hppa-linux-ld: fs/fs.o(.text.devfs_alloc_major+0x5c): cannot handle R_PARISC_PCREL17F for __set_bit
fs/fs.o: In function `devfs_dealloc_major':
fs/fs.o(.text.devfs_dealloc_major+0x20): undefined reference to `__test_and_clear_bit'
hppa-linux-ld: fs/fs.o(.text.devfs_dealloc_major+0x20): cannot find stub entry 00000571___test_and_clear_bit+0
hppa-linux-ld: fs/fs.o(.text.devfs_dealloc_major+0x20): cannot handle R_PARISC_PCREL17F for __test_and_clear_bit
fs/fs.o: In function `L854':
fs/fs.o(.text.devfs_alloc_devnum+0x114): undefined reference to `__set_bit'
hppa-linux-ld: fs/fs.o(.text.devfs_alloc_devnum+0x114): cannot find stub entry 00000571___set_bit+0
hppa-linux-ld: fs/fs.o(.text.devfs_alloc_devnum+0x114): cannot handle R_PARISC_PCREL17F for __set_bit
fs/fs.o: In function `L913':
fs/fs.o(.text.devfs_alloc_devnum+0x1d8): undefined reference to `__set_bit'
hppa-linux-ld: fs/fs.o(.text.devfs_alloc_devnum+0x1d8): cannot find stub entry 00000571___set_bit+0
hppa-linux-ld: fs/fs.o(.text.devfs_alloc_devnum+0x1d8): cannot handle R_PARISC_PCREL17F for __set_bit
fs/fs.o: In function `L941':
fs/fs.o(.text.devfs_dealloc_devnum+0xdc): undefined reference to `__test_and_clear_bit'
hppa-linux-ld: fs/fs.o(.text.devfs_dealloc_devnum+0xdc): cannot find stub entry 00000571___test_and_clear_bit+0
hppa-linux-ld: fs/fs.o(.text.devfs_dealloc_devnum+0xdc): cannot handle R_PARISC_PCREL17F for __test_and_clear_bit
fs/fs.o: In function `L948':
fs/fs.o(.text.devfs_alloc_unique_number+0xa8): undefined reference to `__set_bit'
hppa-linux-ld: fs/fs.o(.text.devfs_alloc_unique_number+0xa8): cannot find stub entry 00000571___set_bit+0
hppa-linux-ld: fs/fs.o(.text.devfs_alloc_unique_number+0xa8): cannot handle R_PARISC_PCREL17F for __set_bit
fs/fs.o: In function `L990':
fs/fs.o(.text.devfs_dealloc_unique_number+0x48): undefined reference to `__test_and_clear_bit'
hppa-linux-ld: fs/fs.o(.text.devfs_dealloc_unique_number+0x48): cannot find stub entry 00000571___test_and_clear_bit+0
hppa-linux-ld: fs/fs.o(.text.devfs_dealloc_unique_number+0x48): cannot handle R_PARISC_PCREL17F for __test_and_clear_bit
make: *** [vmlinux] Error 1

I'm using debootstrap on my i386 system to build a new root tarball.
Naturally the post-install scripts and such inside the chroot aren't
going to run, but I hope to get it along far enough to boot.

Regards,

Albert

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Subject: [parisc-linux] 720/50 - Out of options
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> Hello,
> 
> I've tried compiling a kernel with devfs, but I'm not having any luck.
> I'm using xc-latest from about a week ago, and make palo dies with the
> following message:
>

True. I just tried it on my xcompile box, and I get the same thing :)

Seems to be an issue with __set_bit and __test_and_clear_bit,
maybe I'll look into that tonight.

I used to be able to compile with devfs, guess it needs some work
to get up to speed with the recent changes.

I'm out of simple suggestions for you 720/50 :)

I'll see where those unaligned errors come from ...

c. 




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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: [parisc-linux] Non-atomic __set_bit
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parisc,

Walking the source for devfs and thinking about Alberts problem.

Would the non-working devfs be fixed by adding:

Non-atomic versions of set_bit e.g. __set_bit 
and test_and_set_bit e.g. __test_and_set_bit
to linux/include/asm-parisc/bitops.h?

I have the latest CVS linux module.
I've patched against that. It compiles now ;)
(god bless make -j8)

I'm currently sleepy, but I'll post the patch, and test
it tommorow on a 712/60 and 715/50.

c.

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--- ./linux/include/asm-parisc/bitops.h.orig	Mon Sep 24 01:27:31 2001
+++ ./linux/include/asm-parisc/bitops.h.mod	Mon Sep 24 01:41:38 2001
@@ -50,6 +50,26 @@
 	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(addr), flags);
 }
 
+/*
+ * Non-Atomic __set_bit
+ *
+ * If called by multiple processes, only one will succeed.
+ * The others would have been reordered before the succeeding
+ * call.
+ *
+ */
+
+static __inline__ void __set_bit(int nr, void * address)
+{
+        unsigned long mask;
+        unsigned long *addr = (unsigned long *) address;
+
+        addr += (nr >> SHIFT_PER_LONG);
+        mask = 1L << CHOP_SHIFTCOUNT(nr);
+        *addr |= mask;
+}
+
+
 static __inline__ int test_and_clear_bit(int nr, void * address)
 {
 	unsigned long mask;
@@ -66,6 +86,25 @@
 
 	return oldbit;
 }
+
+/*
+ * Non-Atomic __test_and_clear_bit
+ *
+ */
+
+static __inline__ int __test_and_clear_bit(int nr, void * address)
+{
+        unsigned long mask;
+        unsigned long *addr = (unsigned long *) address;
+        int oldbit;
+        addr += (nr >> SHIFT_PER_LONG);
+        mask = 1L << CHOP_SHIFTCOUNT(nr);
+        oldbit = (*addr & mask) ? 1 : 0;
+        *addr &= ~mask;
+											            return oldbit;
+}
+
+
 
 static __inline__ void clear_bit(int nr, void * address)
 {

--Bn2rw/3z4jIqBvZU--




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Xref: news.gmane.org gmane.linux.ports.parisc:12264



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From - Thu Nov 08 21:19:18 2018
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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] hp715-50 scorpio - this is the real emailaddress
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To: Tilman Baumann <Simsalabimson@web.de>
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On Sat, Sep 22, 2001 at 10:26:51PM +0200, Tilman Baumann wrote:
> hi, can anyone of you tell me, if it makes sense to install parisc-linux on 
> my machine?
> I have a hp715-50 scorpio.

Linux will work quite well on that machine, but you may have to run
with a serial console, as Linux doesn't support graphics on all
hardware yet.  Also, Linux doesn't support EISA cards on any parisc
boxes yet, so it you have any of those they wont work.

Richard




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I installed the 0.92 system, upgraded everything with apt-get upgrade
and then compiled the kernel (last fridays snapshot).

The system in question is a C360, 512K Ram and a 9 Gig HD.

bofh:~# uname -a
Linux bofh 2.4.9-pa24 #2 Fri Sep 21 20:40:31 UTC 2001 parisc unknown

I then patted myself of the back and went home and had myself a good weekend.

When I returned to work this monday morning I noticed the following in
my minicom (C360 Console) window:

bofh login: EXT2-fs error (device sd(8,4)): ext2_check_page: bad entry in directory #870061: directory entry across blocks - offset=0, inode=1701273973, rec_len=24864, name_len=115
Remounting filesystem read-only
EXT2-fs error (device sd(8,4)): ext2_check_page: bad entry in directory #837235: unaligned directory entry - offset=0, inode=1684107116, rec_len=28265, name_len=103
Remounting filesystem read-only

After that all kinds of warnings and errors regarding a read only root.
I opted for a reboot and I had to run fsck manually and there where lots
of things fsck wanted me to say "Y" to.

bofh:/# du -s lost+found/
1796    lost+found
bofh:/# ls -l lost+found | grep -c ^-
50
bofh:/# ls -l lost+found | grep -c ^d
20

I would understand that "sh**" can happen when it crashes or something like
that, but nothing happened during the weekend.

-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




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Hello,

Thanks for the reply. I was considering exactly this course of action.
Hopefully I can spot something then. I'll post my findings here. :-)

I was also thinking of adding some debug output to init itself.
Seemingly it gets run, and during that process the kernel loses it...?

Regards,

Albert

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Hello,

News from the front... :-)

The updated printk outputs:

handle_interruption() pid=3D1 command=3D'init' code=3D18

I've also updated my init binary from the baseplus tarball to one I just
cross-compiled from sysvinit-2.82 (along with modifying init.h to
enable debugging output (#define DEBUG 1)), but it doesn't seem as if it
is getting much further than the initial interruption; init probably
isn't running very "far".

What next?=20

Regards,

Albert

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From: =?ISO-8859-1?Q?R=FCdiger?= Scholz <rscholz@hrzpub.tu-darmstadt.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] Additional Address cleanup
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This is a multi-part message in MIME format.
--------------030305010602090100020802
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Hi there,

I've tested the patch on my 715/100. I enabled STI-Console only and no 
STI-fb, because of the second Coral Graphics Card in my box.Using the 
kernel 2.4.9-pa25, the new patch kernel boots out of the box, but it 
doesn't recognize my graphics cards. I also changed the 
kmalloc-statement according to your second mail .

I added the bootlog.

Any hints? Ruediger


--------------030305010602090100020802
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 name="logfile.txt"
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 filename="logfile.txt"



----------------------------------------------------------------------------
BootRom Version    1.4  
Memory Size:  128 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.
----------------------------------------------------------------------------
Command                                Description
-------                                -----------
Auto [boot|search] [on|off]            Set/show auto mode
Boot [pri|alt [isl]]                   Boot from primary or alternate path
Boot [scsi|eisa.<slot>[.<addr>]] [isl] Boot from SCSI or EISA
Boot lan[.<addr>] [install] [isl]      Boot from LAN
Chassis [on|off]                       Set/show chassis codes display mode
DefaultSS                              Reboot and set EEPROM to default values
Diagnostic [on|off]                    Set/show diagnostic boot mode
Fastboot [on|off]                      Set/show fast boot mode
Help                                   Show this command menu
Information                            Show system information
LanAddress                             Show LAN station addresses
Monitor [<DEV>[.<type>]]               Set/show graphics monitor type
                                       (<DEV>=graphics|graphics_<1|2>)
Path [pri|alt [<DEV>[.<addr>]]]        Set/show boot source path
                                       (<DEV>=lan|scsi|eisa.<slot>)
Path [console [<DEV>[.<parm>]]]        Set/show boot console path
                                       (<DEV>=<RS232>|<GRAPH>
                                        <RS232>=rs232|rs232_2
                                        <parm>=<baud>.<length>.<parity>
                                        <GRAPH>=graphics|graphics_<1|2>
                                        <parm>=<monitor>)
Path [keyboard [hil|ps2]]              Set/show boot keyboard path
Pim [hpmc|toc|lpmc]                    Show PIM info
Search [ipl] [scsi|eisa]               Show potential boot devices
Search [ipl] [lan [install]]           Show potential boot LAN devices
Secure [on|off]                        Set/show security mode
----------------------------------------------------------------------------
BOOT_ADMIN>bo pri ipl




Attempting to boot.

Loading Initial Program Loader


IPL successfully loaded


Booting
palo ipl 0.93 root@gandalf Sun Jul  8 12:19:37 CEST 2001
0/vmlinux32 2918801 bytes @ 0x48000
Partition Start(MB) End(MB) Id Type
1               1      22   f0 Palo
2              23      64   83 ext2
3              65     194   82 swap
4             195    2046   83 ext2
Current command line:

2/vmlinux-test root=/dev/sda4 HOME=/ TERM=linux console=ttyS0
 0: 2/vmlinux-test
 1: root=/dev/sda4
 2: HOME=/
 3: TERM=linux
 4: console=ttyS0

Edit which field?
(or 'b' to boot with this command line)? b
Command line: 'root=/dev/sda4 HOME=/ TERM=linux console=ttyS0'

Kernel: partition 2 file /vmlinux-test
ext2 block size 1024
ext2_mount(partition 2) returns 0
ext2_open(/vmlinux-test) = 3
ELF32 executable
Entry 001000b0 first 00100000 n 6
Segment 0 load 00100000 size 1689384 mediaptr 0x1000
Segment 1 load 0029e000 size 275544 mediaptr 0x19e000
Segment 2 load 002e4000 size 361024 mediaptr 0x1e2000
Segment 3 load 00340000 size 8192 mediaptr 0x23b000
Segment 4 load 00348000 size 32768 mediaptr 0x23d000
Segment 5 load 00384acc size 86704 mediaptr 0x245acc
branching to kernel entry point 0x001000b0
Set default PSW W bit to 0
Linux version 2.4.9-pa25 (ruediger@gandalf) (gcc version 3.0.2 20010825 (Debian prerelease)) #1 Sam Sep 22 17:06:55 CEST 2001
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Older Legacy Box
model	000060b0 00000481 00000000 00000000 77b661a7 00000000 00000004 00000072 00000072
vers	0000000b
CPUID	vers 0 rev 0
model	9000/715
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda4 HOME=/ TERM=linux console=ttyS0
Console: colour dummy device 160x64
Calibrating delay loop... 99.73 BogoMIPS
Memory: 126136k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf4000000, versions 0x4, 0x0, 0x77
2. Mirage GSC Builtin Graphics (10) at 0xf8000000, versions 0x13, 0x0, 0x85
3. Mirage Core BA (11) at 0xf0100000, versions 0x29, 0x0, 0x81
4. Mirage Core SCSI (10) at 0xf0106000, versions 0x29, 0x0, 0x82
5. Mirage Core LAN (802.3) (10) at 0xf0107000, versions 0x29, 0x0, 0x8a
6. Mirage Core RS-232 (10) at 0xf0105000, versions 0x29, 0x0, 0x8c
7. Mirage Core Centronics (10) at 0xf0102000, versions 0x29, 0x0, 0x74
8. Mirage Audio (10) at 0xf0104000, versions 0x29, 0x0, 0x7b
9. Mirage Core PC Floppy (10) at 0xf010a000, versions 0x29, 0x0, 0x83
10. Mirage Core PS/2 Port (10) at 0xf0108000, versions 0x29, 0x0, 0x84
11. Mirage Core PS/2 Port (10) at 0xf0108100, versions 0x29, 0x0, 0x84
12. Mirage Wax BA (11) at 0xf0200000, versions 0x13, 0x0, 0x8e
13. Mirage 100 Wax HIL (10) at 0xf0201000, versions 0x13, 0x0, 0x73
14. Mirage Wax RS-232 (10) at 0xf0202000, versions 0x13, 0x0, 0x8c
15. Mirage 100 (0) at 0xfffbe000, versions 0x60b, 0x0, 0x4
16. Mirage 100 (1) at 0xfffbf000, versions 0x4b, 0x0, 0x9
That's a total of 16 devices.
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
iosapic_init()
pdc_pci_irt_size: -1
Lasi version 0 at 0xf0100000 found.
LED display at f00e0000 registered
Wax at 0xf0200000 found.
Wax: HIL Keyboard-NMI registered.
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
VFS: Diskquotas version dquot_6.4.0 initialized
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0202800 (irq = 121) is a 16550A
Lasi PS/2 receive buffer timeout
PS/2 keyboard port at 0xf0108000 (irq 69) found, no device attached.
Lasi PS/2 transmit buffer timeout
PS/2 psaux port at 0xf0108100 (irq 69) found, no device attached.
Found HIL at 0xf0201000, IRQ 126
HIL: keyboard found at id 0
HIL: keymap loaded.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 7A DC 08 IRQ 87.
82596.c $Revision: 1.22 $
SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c710 (SCSI-ID 7) at f0106100, IRQ 86, options 0
scsi0: Revision 0x2
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: SEAGATE   Model: ST32430N          Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
Lasi Harmony Audio rev. 18 at 0xf0104000, using IRQ 82
sticonsole_init: searching for STI ROMs
Warning : device (10, 0x4, 0x0, 0x77) NOT claimed by sti (native)
Warning : device (10, 0x13, 0x0, 0x85) NOT claimed by sti (native)
md: linear personality registered
md: raid0 personality registered
md: raid1 personality registered
md: raid5 personality registered
raid5: measuring checksumming speed
   8regs     :    70.800 MB/sec
   8regs_prefetch:    98.000 MB/sec
   32regs    :   118.400 MB/sec
   32regs_prefetch:   164.400 MB/sec
raid5: using function: 32regs_prefetch (164.400 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
INIT: version 2.78 booting
Activating swap...
Adding Swap: 132920k swap-space (priority -1)
Checking root file system...
Parallelizing fsck version 1.22 (22-Jun-2001)
/dev/sda4: clean, 41827/237120 files, 162129/474075 blocks
Checking all file systems...
Parallelizing fsck version 1.22 (22-Jun-2001)
/dev/sda2: clean, 23/10944 files, 14621/43617 blocks
Setting kernel variables.
Loading the saved-state of the serial devices... 
Mounting local filesystems...
mount: devpts already mounted on /dev/pts
/dev/sda2 on /boot type ext2 (rw,errors=remount-ro)
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: eth0: link ok.
done.
Starting portmap daemon: portmap.
Starting portmapper... Mounting remote filesystems...
mount: RPC: Unable to receive; errno = Connection refused

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Mon Sep 24 11:52:03 CEST 2001

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting NFS common utilities: statd lockd.
Starting internet superserver: inetd.
Not starting NFS kernel daemon: No exports.
Starting OpenBSD Secure Shell server: sshd.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.
Starting web server: apache.
/usr/sbin/apachectl start: httpd started

Debian GNU/Linux testing/unstable gandalf ttyS0

gandalf login: 
--------------030305010602090100020802--






From - Thu Nov 08 21:19:18 2018
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From: Albert Strasheim <fullung@ilink.nis.za>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Debian bootfloppies with -pa22 fails on 720/50
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Eek! :-)

After your changes (making case 18 fall through to case 28), I get the
following happy-and-warm-and-fuzzy message:

...
VFS: Mounted root (nfs filesystem) readonly.
init(1): unaligned access to 0x00090cf4 at ip=0x000157af
init[1]: Unaligned data reference 28

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 1035d973 1010ccb8 10038258
r4-7     10038648 ffffffff 00000012 faf0004c
r8-11    00000000 00069c48 000100c4 00014dd8
r12-15   10348000 00000000 00000000 00000000
r16-19   10038258 00000000 10348000 00000000
r20-23   00090cf4 0000001f 00000000 10038258
r24-27   00000001 00000001 1027b8e0 102a4010
r28-31   00000000 00000004 10038800 10118338
sr0-3    00000000 105b60c0 00000000 00000001
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1010ca64 1010ca68
 IIR: 0e93d222    ISR: 00000001  IOR: 00090cf4
 CPU:        0   CR30: 10038000 CR31: 10350000
 ORIG_R28: 10038600
Kernel panic: Attempted to kill init!

This doesn't mean much to me, so let me know what you want me to do now.
:-)

Regards,

Albert

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From: Jochen Friedrich <jochen@scram.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Debian bootfloppies with -pa22 fails on 720/50
Date: Mon, 24 Sep 2001 13:22:34 +0200 (CEST)
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To: Albert Strasheim <fullung@ilink.nis.za>
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Hi Albert,

> Thanks for the reply. I was considering exactly this course of action.
> Hopefully I can spot something then. I'll post my findings here. :-)
>
> I was also thinking of adding some debug output to init itself.
> Seemingly it gets run, and during that process the kernel loses it...?

There are some issues with 720 boxes. This old patch at least gets me
started, although some alignment faults remain for some user space tools:

"Our" CPUs are very old. So there must be a line added in
the arch/parisc/kernel/trap.c file. In the handle_interruption()
you must add the line
        `case 18:'
where
        `case 15:'
        `case 26:'
is in the code, because these old CPUs use an older method of
"reporting" page faults, etc...

There was a second patch posted some time ago, but that one didn't work
for me:

Index: traps.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/traps.c,v
retrieving revision 1.52
diff -u -p -r1.52 traps.c
--- traps.c	2001/09/06 09:44:07	1.52
+++ traps.c	2001/09/15 16:52:13
@@ -322,6 +322,11 @@ void handle_interruption(int code, struc
 		fault_address = regs->ior;
 		parisc_terminate("Non access data tlb fault!",regs,code,fault_address);

+	case 18: /* PCX-S processors don't use 26, 27, 28 */
+		if (regs->ior & 3)
+			goto unaligned_d_access;
+		/* Fall through */
+
 	case 15:
 	case 26:
 		fault_address = regs->ior;
@@ -416,7 +421,8 @@ void handle_interruption(int code, struc
 		force_sig_info(SIGSEGV, &si, current);
 		return;

-	case 28:  /* Unaligned just causes SIGBUS for now */
+ unaligned_d_access:
+	case 28:
 		handle_unaligned(regs);
 #if 0
 		die_if_kernel("Unaligned data reference", regs, code);

Cheers,
Jochen






From - Thu Nov 08 21:19:18 2018
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From: Jochen Friedrich <jochen@scram.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Debian bootfloppies with -pa22 fails on 720/50
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Hi Albert,

> After your changes (making case 18 fall through to case 28), I get the
> following happy-and-warm-and-fuzzy message:

As i said, the second patch didn't work for me, as well. The first one
(fall through to case 26) did.

Cheers,
Jochen





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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Betr.: Re: [parisc-linux] Debian bootfloppies with -pa22 fails
	on 720/50
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Xref: news.gmane.org gmane.linux.ports.parisc:12273

>Eek! :-)
>
>After your changes (making case 18 fall through to case 28), I get the
>following happy-and-warm-and-fuzzy message:
>
>...
>VFS: Mounted root (nfs filesystem) readonly.
>init(1): unaligned access to 0x00090cf4 at ip=3D0x000157af
>init[1]: Unaligned data reference 28
>
>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>PSW: 00000000000001001111111100001111
>r0-3     00000000 1035d973 1010ccb8 10038258
>r4-7     10038648 ffffffff 00000012 faf0004c
>r8-11    00000000 00069c48 000100c4 00014dd8
>r12-15   10348000 00000000 00000000 00000000
>r16-19   10038258 00000000 10348000 00000000
>r20-23   00090cf4 0000001f 00000000 10038258
>r24-27   00000001 00000001 1027b8e0 102a4010
>r28-31   00000000 00000004 10038800 10118338
>sr0-3    00000000 105b60c0 00000000 00000001
>sr4-7    00000000 00000000 00000000 00000000
>
>IASQ: 00000000 00000000 IAOQ: 1010ca64 1010ca68
> IIR: 0e93d222    ISR: 00000001  IOR: 00090cf4
> CPU:        0   CR30: 10038000 CR31: 10350000
> ORIG_R28: 10038600
>Kernel panic: Attempted to kill init!
>
>This doesn't mean much to me, so let me know what you want me to do now.
>:-)
>
Look up the thread on 'nmap -O fails on 712/60' from just 2 weeks ago and
decode this using your own system.map.....

Good luck,
Jurriaan





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Hello,

And it worked for me! :-) Whooo, I netbooted my new kernel, and am now
attempting an install from the 0.9.2 CD-ROM (I have also set up a local
mirrorlet of the latest hppa packages, so I might try those too).

Regards,

Albert

On Mon, 24 Sep 2001, Jochen Friedrich wrote:

> Hi Albert,
>=20
> > After your changes (making case 18 fall through to case 28), I get the
> > following happy-and-warm-and-fuzzy message:
>=20
> As i said, the second patch didn't work for me, as well. The first one
> (fall through to case 26) did.
>=20
> Cheers,
> Jochen
>=20

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Subject: Re: Betr.: Re: [parisc-linux] Debian bootfloppies with -pa22 fails on 720/50
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To: Jurriaan Kalkman <Jurriaan.Kalkman@zrt.nl>
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Hello,

I've since tried the other case 18 fall-through option, and it worked up
to the point where I am now installing from the 0.9.2 CD-ROM.

Do you still want me to decode this crash?

Regards,

Albert

On Mon, 24 Sep 2001, Jurriaan Kalkman wrote:

> >Eek! :-)
> >
> >After your changes (making case 18 fall through to case 28), I get the
> >following happy-and-warm-and-fuzzy message:
> >
> >...
> >VFS: Mounted root (nfs filesystem) readonly.
> >init(1): unaligned access to 0x00090cf4 at ip=3D0x000157af
> >init[1]: Unaligned data reference 28
> >
> >     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> >PSW: 00000000000001001111111100001111
> >r0-3     00000000 1035d973 1010ccb8 10038258
> >r4-7     10038648 ffffffff 00000012 faf0004c
> >r8-11    00000000 00069c48 000100c4 00014dd8
> >r12-15   10348000 00000000 00000000 00000000
> >r16-19   10038258 00000000 10348000 00000000
> >r20-23   00090cf4 0000001f 00000000 10038258
> >r24-27   00000001 00000001 1027b8e0 102a4010
> >r28-31   00000000 00000004 10038800 10118338
> >sr0-3    00000000 105b60c0 00000000 00000001
> >sr4-7    00000000 00000000 00000000 00000000
> >
> >IASQ: 00000000 00000000 IAOQ: 1010ca64 1010ca68
> > IIR: 0e93d222    ISR: 00000001  IOR: 00090cf4
> > CPU:        0   CR30: 10038000 CR31: 10350000
> > ORIG_R28: 10038600
> >Kernel panic: Attempted to kill init!
> >
> >This doesn't mean much to me, so let me know what you want me to do now.
> >:-)
> >
> Look up the thread on 'nmap -O fails on 712/60' from just 2 weeks ago and
> decode this using your own system.map.....
>=20
> Good luck,
> Jurriaan
>=20

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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: Re: [parisc-linux] Debian bootfloppies with -pa22 fails on 720/50
Date: Mon, 24 Sep 2001 12:49:31 -0400
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> 
> > After your changes (making case 18 fall through to case 28), I get the
> > following happy-and-warm-and-fuzzy message:
> 
> As i said, the second patch didn't work for me, as well. The first one
> (fall through to case 26) did.
> 
> Cheers,
> Jochen
>

There has been a lot of recent work on adding the unaligned 
handlers that were missing.  I think that previously, most of 
the handlers for the older CPU's hadn't been written... now that
they are there, the fallthrough case has more support.

I'm glad that Albert got his system working.
(Crosses fingers)

Someone should look into incorporating that kludge for the 720/50
machines.

Where are the oracles of the CVS? :)

c. 




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Hello,

On Mon, 24 Sep 2001, Carlos O'Donell Jr. wrote:

> > > After your changes (making case 18 fall through to case 28), I get the
> > > following happy-and-warm-and-fuzzy message:
> >=20
> > As i said, the second patch didn't work for me, as well. The first one
> > (fall through to case 26) did.
> >=20
> > Cheers,
> > Jochen
> >
>=20
> There has been a lot of recent work on adding the unaligned=20
> handlers that were missing.  I think that previously, most of=20
> the handlers for the older CPU's hadn't been written... now that
> they are there, the fallthrough case has more support.

I'd be happy to test these whenever possible. :-)
=20
> I'm glad that Albert got his system working.
> (Crosses fingers)

I am currently battling the install process. I'm as far as creating the
f0, swap and root partitions on the drive, fscking and mounting them,
but the installation of the base system (starting with drivers.tgz and
rescue.bin) is giving problems. For some reason I can netboot a kernel
fine (and also use a nfsroot), but when it comes time to do a network
install, the installer can't even find my BOOTP server...

I'm currently trying the CD-ROM install, but my last attempt failed with
the following message during the installation of the rescue disk:

ioctl: LOOP_CLR_FD: No such device or address

So that's where I am now... but it's looking better. I'm going to try
the CD-ROM install again now.

Regards,

Albert

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From - Thu Nov 08 21:19:19 2018
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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Filesystem corruption
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To: Richard Allen <ra@hp.is>
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I have just installed a C360 from a new ISO I made, which uses a
2.4.9-pa25 kernel.  That installed ok; I built a kernel, rebooted
and forced an fsck.  Disk was clean.  I didn't leave the system up
all that long - couple of hours maybe.  It is just possible that
the -pa25 change made a difference.  You could perhaps repeat the
exercise, forcing an fsck at the end of install, and again at the
end of kernel build to see when (if) corruption occurs.  I force
an fsck by booting with init=/bin/sh and then e2fsck -f while the
partition is still read-only.

Richard


On Mon, Sep 24, 2001 at 10:02:51AM +0000, Richard Allen wrote:
> I installed the 0.92 system, upgraded everything with apt-get upgrade
> and then compiled the kernel (last fridays snapshot).
> 
> The system in question is a C360, 512K Ram and a 9 Gig HD.
> 
> bofh:~# uname -a
> Linux bofh 2.4.9-pa24 #2 Fri Sep 21 20:40:31 UTC 2001 parisc unknown
> 
> I then patted myself of the back and went home and had myself a good weekend.
> 
> When I returned to work this monday morning I noticed the following in
> my minicom (C360 Console) window:
> 
> bofh login: EXT2-fs error (device sd(8,4)): ext2_check_page: bad entry in directory #870061: directory entry across blocks - offset=0, inode=1701273973, rec_len=24864, name_len=115
> Remounting filesystem read-only
> EXT2-fs error (device sd(8,4)): ext2_check_page: bad entry in directory #837235: unaligned directory entry - offset=0, inode=1684107116, rec_len=28265, name_len=103
> Remounting filesystem read-only
> 
> After that all kinds of warnings and errors regarding a read only root.
> I opted for a reboot and I had to run fsck manually and there where lots
> of things fsck wanted me to say "Y" to.
> 
> bofh:/# du -s lost+found/
> 1796    lost+found
> bofh:/# ls -l lost+found | grep -c ^-
> 50
> bofh:/# ls -l lost+found | grep -c ^d
> 20
> 
> I would understand that "sh**" can happen when it crashes or something like
> that, but nothing happened during the weekend.
> 
> -- 
> Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
>                --  Solaris 7 Certified Systems and Network Administrator.
> Bell Labs Unix --  Reach out and grep someone.
> Those who do not understand Unix are condemned to reinvent it, poorly.
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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Subject: Re: [parisc-linux] kernel 2.5.9-pa24 won't boot 735/125
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On Thu, Sep 20, 2001 at 01:33:09PM -0600, Sonny Cook wrote:
> Hi,
> I just tried my hand at cross compiling the parisc-linux kernel on my x86
> box.  Something compiled, so I put the vmlinux on my 735/125 and tried to
> boot it.  It went like this:
> 
...
> At this point, I can't even think where to begin looking for problems.
> Any hints?

Don't know what kernel config you used, but the official 32 bit
kernels use arch/parisc/debian-configs/32.  Might be relevant.
Also, trying serial console might be useful, as Jurriaan suggested.

Richard





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On Sat, Sep 22, 2001 at 07:28:42AM +0200, thunder7@xs4all.nl wrote:
> On Sat, Sep 22, 2001 at 02:42:12AM +0200, Tino Hirschmann wrote:
> > Hi,
> > 
> > i got palinux-0.9.2 running on my HP 715/80. I compiled the kernel as
> > discribed on the webpage.
> > But what do i have to do after i did make palo ?
> > I think make zlilo doesn't work here .-)
> > 

'make palo' will build a vmlinux, and then use that to build a lifimage.
The lifimage is used for netbooting.  If you are booting from disk
you want to copy vmlinux to /boot/vmtest (or something).  Then your
options are either

> Edit /etc/palo.conf and run /sbin/palo

or interact with the ipl somehow (either say 'yes' to the question on boot,
or use 'bo isl', depending on machine), and edit the kernel name to
be vmtest.

Richard





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Subject: Don't Use base tarballs (was Re: [parisc-linux] nfsroot login 
 problems on 720/50)
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Albert Strasheim writes...

> Should I try the base tarball (same date... :-( ) or is that known to be
> bad too?

Neither are "bad" just out of date. As soon as we had a real installer 
everyone switched over to using that. They were left there for historical 
reasons.

I have moved them to an old directory to prevent confusion. No one should be 
using these any more. If, for some good reason, you can't use the normal 
installer process then I think the proper way to generate base tarballs now is 
to use the debootstrap tool. If there's enough demand then we could generate 
them and put them on the ftp site again.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] 712/60 boots fine
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thunder7@xs4all.nl wrote:
> I guess that means me :-)

Uhm...yeah. :^)

> This is my current palo output:
> 
> jurriaan@pa8200:~$ sudo /sbin/palo
> palo version 0.94 bame@c3k Sat Sep  8 12:33:24 MDT 2001
> ELF32 executable
> Partition Start(MB) End(MB) Id Type
> 1               1      31   f0 Palo
> 2              32    3846   83 ext2
> 3            3847    7661   83 ext2
> 4            7662    8678   82 swap
> ipl: addr 16384 size 28672 entry 0x0
>  ko 0x0 ksz 0 k64o 0x0 k64sz 0 rdo 0 rdsz 0
> <2/boot/vmlinux-2.4.9-pa24 root=/dev/sda2 HOME=/>
> ipl: addr 16384 size 28672 entry 0x0
>  ko 0x44000 ksz 2853588 k64o 0x0 k64sz 0 rdo 0 rdsz 0
> <2/boot/vmlinux-2.4.9-pa24 root=/dev/sda2 HOME=/>
> 
> Now if I understand correctly, palo must
> 
> - warn if there is no f0 partition
> - warn if there is no ext2 partition in the first 2 Gb

warn if the partition with vmlinux (eg /boot/vmlinux) exceeds 2GB.
The problem is palo uses IODC to load data.
IODC can't access beyond 2GB due to signed numbers/offset issues.

Note that your partition 2 violates that rule.

grant





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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: Re: Don't Use base tarballs (was Re: [parisc-linux] nfsroot login problems on 720/50)
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Hello,

On Mon, 24 Sep 2001, Matt Taggart wrote:

> Albert Strasheim writes...
>=20
> > Should I try the base tarball (same date... :-( ) or is that known to be
> > bad too?
>=20
> Neither are "bad" just out of date. As soon as we had a real installer=20
> everyone switched over to using that. They were left there for historical=
=20
> reasons.
>=20
> I have moved them to an old directory to prevent confusion. No one should=
 be=20
> using these any more. If, for some good reason, you can't use the normal=
=20
> installer process then I think the proper way to generate base tarballs n=
ow is=20
> to use the debootstrap tool. If there's enough demand then we could gener=
ate=20
> them and put them on the ftp site again.

I'd gotten as far as debootstrapping woody up to the point where all the
packages were installed. As you might imagine, running binaries in the
chroot on my i386 didn't work too well :-)

If it is at all possible, could you please generate new tarballs? I'm
not sure if it is possible to complete the installation on my 720/50, so
the tarball will really go a long way to getting some userland apps
running so that I can perhaps provide better information for the real
hackers who are figuring out the unaligned trap stuff.

Regards,

Albert

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From: rbradetich@uswest.net (Ryan Bradetich)
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Subject: Re: [parisc-linux] [PATCH] Additional Address cleanup
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On Mon, Sep 24, 2001 at 01:06:36PM +0200, R?diger Scholz wrote:
> Hi there,
> 
> I've tested the patch on my 715/100. I enabled STI-Console only and no 
> STI-fb, because of the second Coral Graphics Card in my box.Using the 
> kernel 2.4.9-pa25, the new patch kernel boots out of the box, but it 
> doesn't recognize my graphics cards. I also changed the 
> kmalloc-statement according to your second mail .
> 
> I added the bootlog.
> 
> Any hints? Ruediger

First I am assuming this worked before you tested this patch....

Ok, here we found the two graphics cards in firmware....
> Found devices:
> 1. Coral SGC Graphics (10) at 0xf4000000, versions 0x4, 0x0, 0x77
> 2. Mirage GSC Builtin Graphics (10) at 0xf8000000, versions 0x13, 0x0, 0x85


Here both the devices were not claimed by the STI driver.
> sticonsole_init: searching for STI ROMs
> Warning : device (10, 0x4, 0x0, 0x77) NOT claimed by sti (native)
> Warning : device (10, 0x13, 0x0, 0x85) NOT claimed by sti (native)

if you look in the register_parisc_driver() in arch/parisc/kernel/drivers.c

you will see that this warning is printed with the driver->probe() function
returns non-zero.

                if (driver->probe(device) == 0) {
                        device->driver = driver;
                } else {
                        printk(KERN_WARNING "Warning : device (%d, 0x%x, 0x%x, 0x%x) NOT claimed by %s\n",
                                device->id.hw_type, device->id.hversion,
                                device->id.hversion_rev, device->id.sversion,
                                driver->name);
                }

The probe function for the STI drive resolves to this function sticore_pa_init()
in drivers/video/sticore.c

I would look at the different inputs/outputs from this function with and without
the patch applied.  I have been trying to duplicate your problem on the 712/100
all day without success *sigh*   I do have a 715 here I can try if you can not
locate the problem, but nothing with dual graphics cards.

Sorry, I do not have a better answer for you *sigh*  


Is anyone else having these problems? I'd like to commit this patch, but I'm
hesitent if it is causing problems.

Thanks,

- Ryan




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From: Sonny Cook <sonny@aspersion.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel 2.5.9-pa24 won't boot 735/125
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Okay, I've written off cross compiling as a loss.  I did get a 715/80
working with no obvious problems.  I've compiled a kernel with the
EARLY_BOOTUP_DEBUG flag defined.  So, I boot my 735/125 with that kernel
and get much more interesting information.  Thusly:

Trying scsi.5.0
Boot path initialized.
Attempting to load IPL.
Hard booted.
palo ipl 0.94 sonny@foucault Wed Sep 19 22:52:46 MDT 2001

Partition Start(MB) End(MB) Id Type
1               1      16   f0 Palo
2              17    2046   83 ext2
Command line: 'HOME=/ TERM=LINUX console=ttyS0 root=/dev/sda2'

Kernel: partition 2 file /boot/vmlinux
ext2_mount(partition 2) returns 0
Opening /boot/vmlinux
ext2_open(/boot/vmlinux) = 3
ELF32 executable
Entry 00100000 first 00100000 n 6
Segment 0 load 00100000 size 1629016 mediaptr 0x1000
Segment 1 load 0028e000 size 239576 mediaptr 0x18f000
Segment 2 load 002cc000 size 353468 mediaptr 0x1ca000
Segment 3 load 00324000 size 8192 mediaptr 0x221000
Segment 4 load 00328000 size 32768 mediaptr 0x223000
Segment 5 load 0034b82c size 84992 mediaptr 0x22b82c
branching to kernel entry point 0x00100000
Linux version 2.4.9-pa24 (root@geordi) (gcc version 3.0 20010315
(prerelease)) # 4 Mon Sep 24 03:21:06 MDT 2001
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: Older Legacy Box
model   00002060 00000481 00000000 00000000 77a67807 ffffffff 00000004
0000000a
0000000a
vers    00000015
CPUID   vers 0 rev 0
model   9000/735
Total Memory: 336 Mb
pagetable_init
On node 0 totalpages: 86016
zone(0): 86016 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=LINUX console=ttyS0 root=/dev/sda2
Console: colour dummy device 160x64
Initialized PDC Console for debugging.
Calibrating delay loop... 124.51 BogoMIPS
Memory: 335820k available
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
POSIX conformance testing by UNIFIX
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf8000000, versions 0x4, 0x0, 0x77
2. Outfield Core BA (11) at 0xf082f000, versions 0x9, 0x0, 0x70
3. Outfield Core SCSI (10) at 0xf0825000, versions 0x9, 0x0, 0x71
4. Outfield Core LAN (802.3) (10) at 0xf0826000, versions 0x9, 0x0, 0x72
5. Outfield Core HIL (10) at 0xf0821000, versions 0x9, 0x0, 0x73
6. Outfield Core RS-232 (10) at 0xf0823000, versions 0x9, 0x0, 0x75
7. Outfield Core RS-232 (10) at 0xf0822000, versions 0x9, 0x0, 0x75
8. Outfield Core Centronics (10) at 0xf0824000, versions 0x9, 0x0,
0x74
9. Outfield FW SCSI (10) at 0xf0830000, versions 0x9, 0x0, 0x7c
10. Outfield Audio (10) at 0xf1000000, versions 0x9, 0x0, 0x7f
11. Cobra EISA BA (11) at 0xfc000000, versions 0x4, 0x0, 0x76
12. Snake Cheetah (735/130) (0) at 0xfffbe000, versions 0x206, 0x0,
0x4
13. Snake Cheetah (1) at 0xfffbf000, versions 0x37, 0x0, 0x9
That's a total of 13 devices.
CPU(s): 1 x PA7100 (PCX-T) at 125.000000 MHz
Asp version 20 at 0xf0800000 found.
LED (ASP-style) display at f0800020 registered
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Found HIL at 0xf0821000, IRQ 94
HIL: no keyboard present.
Warning : device (10, 0x9, 0x0, 0x73) NOT claimed by HIL
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0826000, IRQ 87
82596.c: MAC of HP700 LAN blindely read from the prom!
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 0B 53 75 IRQ 87.
82596.c $Revision: 1.22 $
SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: SEAGATE   Model: ST32430N          Rev: 0510
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
SCSI device sda: 4197405 512-byte hdwr sectors (2149 MB)
Partition check:
 sda: sda1 sda2
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
ip_conntrack (2623 buckets, 20984 max)
ip_tables: (c)2000 Netfilter core team
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
INIT: version 2.78 booting
Activating swap...
Checking root file system...
Parallelizing fsck version 1.19 (13-Jul-2000)
/dev/sda2 was not cleanly unmounted, check forced.
/dev/sda2: 29437/260096 files (0.1% non-contiguous), 94659/519769
blocks
Checking all file systems...
Parallelizing fsck version 1.19 (13-Jul-2000)
Setting kernel variables.
Mounting local filesystems...
not mounted anything
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: eth0: Transceiver problem.
done.

Setting the System Clock using the Hardware Clock as reference...
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access
method.
System Clock set. Local time: Tue Sep 25 20:35:45 MDT 2001

Cleaning: /tmp /var/lock /var/run.

At this point the system refuses to give any more output.  I can ping the
box, but there are no services running (sshd is supposed to start up.)  I
also assume that the root file system (/dev/sdb2) is indeed mounted,
because if I just cold reboot, it has to fsck the filesystem next time.

The kernel is compiled without STI or framebuffer support.  It also has
all of the non experimental iptables options compiled in.

Any ideas???


On Thu, 20 Sep 2001, Sonny Cook wrote:

> Hi,
> I just tried my hand at cross compiling the parisc-linux kernel on my x86
> box.  Something compiled, so I put the vmlinux on my 735/125 and tried to
> boot it.  It went like this:
>
> Hard booted.
> palo ipl 0.94 sonny@foucault Wed Sep 19 22:52:46 MDT 2001
> 0/vmlinux32 3153422 bytes @ 0x48000
> Partition Start(MB) End(MB) Id Type
> 1               1      16   f0 Palo
> 2              17    2046   83 ext2
>
> Command line: 'HOME=/ TERM=LINUX console=tty root=/dev/sda2'
>
> Kernel: partition 2 file /boot/vmlinux
> ext2 block size 4096
> ext2_mount(partition 2) returns 0
> Opening /boot/vmlinux
> ext2_open(/boot/vmlinux) = 3
> ELF32 executable
> Entry 001000d0 first 00100000 n 6
> Segment 0 load 00100000 size 1714332 mediaptr 0x1000
> Segment 1 load 002a4000 size 281768 mediaptr 0x1a4000
> Segment 2 load 002ec000 size 376840 mediaptr 0x1e9000
> Segment 3 load 0034c000 size 8192 mediaptr 0x246000
> Segment 4 load 00350000 size 32768 mediaptr 0x248000
> Segment 5 load 0038d684 size 88048 mediaptr 0x250684
> branching to kernel entry point 0x001000d0
>
> At this point, I can't even think where to begin looking for problems.
> Any hints?
>
> Thanks,
> Sonny
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
>





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel 2.5.9-pa24 won't boot 735/125
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To: Sonny Cook <sonny@aspersion.org>
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On Mon, Sep 24, 2001 at 10:09:09PM -0600, Sonny Cook wrote:
> Okay, I've written off cross compiling as a loss.  I did get a 715/80
> working with no obvious problems.  I've compiled a kernel with the
> EARLY_BOOTUP_DEBUG flag defined.  So, I boot my 735/125 with that kernel
> and get much more interesting information.  Thusly:
...
> Setting the System Clock using the Hardware Clock as reference...
> Cannot access the Hardware Clock via any known method.
> Use the --debug option to see the details of our search for an access
> method.
> System Clock set. Local time: Tue Sep 25 20:35:45 MDT 2001
> 
> Cleaning: /tmp /var/lock /var/run.
> 
> At this point the system refuses to give any more output.  I can ping the
> box, but there are no services running (sshd is supposed to start up.)  I
> also assume that the root file system (/dev/sdb2) is indeed mounted,
> because if I just cold reboot, it has to fsck the filesystem next time.
> 
> The kernel is compiled without STI or framebuffer support.  It also has
> all of the non experimental iptables options compiled in.

To eliminate the possibility of a kernel config problem, I would
make distclean; cp arch/parisc/debian-configs/32 .config; make oldconfig
make dep; make

The other thing you can try is booting with init=/bin/sh and try
starting things up by hand to see what hangs it.  Or maybe remove
non-essentail services, then if it boots ok try starting them one
by one.

Richard





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From: Jurij Smakov <jurij@lokmail.net>
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Subject: Re: [parisc-linux] Debian bootfloppies with -pa22 fails on 720/50
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>Hello,
>
>I've since tried the other case 18 fall-through option, and it worked up
>to the point where I am now installing from the 0.9.2 CD-ROM.
>
>Do you still want me to decode this crash?
>
>Regards,
>
>Albert

Hi! 

I don't think You have to decode it. It's clear, what happened. 
Interruption 18 on your machine has equivalent functionality to
interruptions 26, 27 and 28 on newer ones. I thought, that the
interruption you were getting was unaligned access (28), so the idea
was to call handle_unaligned. Clearly, you were getting 26, which
is handled by do_page_fault, so that calling handle_unaligned 
didn't do You any good. It entered the handle_unaligned, but when 
it tried to access the memory byte-by-byte, it trapped with 18 
again and this time it was from inside the kernel, so it ended 
up dead. If someone would give me an idea on how to decide, which 
handler to call for interruption 18, I could try and produce a 
workable workaround.

Best regards,

Jurij Smakov. 

P.S. I can't connect to www.parisc-linux.org and my previous posts did
not appear in the archives (some routing problems, I guess). Also, I
haven't got anything from the list during last 18 hours. I'm posting
from this address instead of my usual one instead. Please cc relevant 
posts to jurijus@theophys.kth.se







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From: Soete Joel <joel.soete@freebel.net>
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Subject: [parisc-linux] How to merge Kernel 2.4.9 for hppa and new kernel 2.4.10
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Hi all,

I just learn that new release 2.4.10 of GNU/linux kernel was released.
I am curious to know how to merge last kernel 2.4.9-paxx and the new
2.4.10?
Is somebody can explain me or where to find relevant info?

Thanks in advance for help,
	Joel




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This is a multi-part message in MIME format.
--------------010101030300000003010504
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Ryan Bradetich wrote:

>
>First I am assuming this worked before you tested this patch....
>
No ;-) It crashes, when the kernel tries to initialize the first 
graphics card (Coral), during STICALL (...) in function sti_init_graph...

>
>Ok, here we found the two graphics cards in firmware....
>
>>Found devices:
>>1. Coral SGC Graphics (10) at 0xf4000000, versions 0x4, 0x0, 0x77
>>2. Mirage GSC Builtin Graphics (10) at 0xf8000000, versions 0x13, 0x0, 0x85
>>
>
>The probe function for the STI drive resolves to this function sticore_pa_init()
>in drivers/video/sticore.c
>
>I would look at the different inputs/outputs from this function with and without
>the patch applied.
>
In which inputs/outputs are you interested.

>  I have been trying to duplicate your problem on the 712/100
>all day without success *sigh*   I do have a 715 here I can try if you can not
>locate the problem, but nothing with dual graphics cards.
>
>Sorry, I do not have a better answer for you *sigh*  
>
>
>Is anyone else having these problems? I'd like to commit this patch, but I'm
>hesitent if it is causing problems.
>

I hoped your patch would bring my two graphics card to work. But they 
didn't work before the patch either, so it doesn't matter that your 
patch is no solution for my problem.
Is there a STI-Console guru on the list, who is interested in solving 
this little problem?! :-)
I have adde a bootlog from my machine, booting a kernel without your 
patch (I enabled DPRINTK for the File sticore.h).

Thanks for your help,
        Ruediger

--------------010101030300000003010504
Content-Type: text/plain;
 name="stilognew.txt"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="stilognew.txt"



----------------------------------------------------------------------------
BootRom Version    1.4  
Memory Size:  128 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.

Starting Auto boot
----------------------------------------------------------------------------
Command                                Description
-------                                -----------
Auto [boot|search] [on|off]            Set/show auto mode
Boot [pri|alt [isl]]                   Boot from primary or alternate path
Boot [scsi|eisa.<slot>[.<addr>]] [isl] Boot from SCSI or EISA
Boot lan[.<addr>] [install] [isl]      Boot from LAN
Chassis [on|off]                       Set/show chassis codes display mode
DefaultSS                              Reboot and set EEPROM to default values
Diagnostic [on|off]                    Set/show diagnostic boot mode
Fastboot [on|off]                      Set/show fast boot mode
Help                                   Show this command menu
Information                            Show system information
LanAddress                             Show LAN station addresses
Monitor [<DEV>[.<type>]]               Set/show graphics monitor type
                                       (<DEV>=graphics|graphics_<1|2>)
Path [pri|alt [<DEV>[.<addr>]]]        Set/show boot source path
                                       (<DEV>=lan|scsi|eisa.<slot>)
Path [console [<DEV>[.<parm>]]]        Set/show boot console path
                                       (<DEV>=<RS232>|<GRAPH>
                                        <RS232>=rs232|rs232_2
                                        <parm>=<baud>.<length>.<parity>
                                        <GRAPH>=graphics|graphics_<1|2>
                                        <parm>=<monitor>)
Path [keyboard [hil|ps2]]              Set/show boot keyboard path
Pim [hpmc|toc|lpmc]                    Show PIM info
Search [ipl] [scsi|eisa]               Show potential boot devices
Search [ipl] [lan [install]]           Show potential boot LAN devices
Secure [on|off]                        Set/show security mode
----------------------------------------------------------------------------
BOOT_ADMIN> bo pri ipl



Attempting to boot.

Loading Initial Program Loader


IPL successfully loaded


Booting
palo ipl 0.93 root@gandalf Sun Jul  8 12:19:37 CEST 2001
0/vmlinux32 2918801 bytes @ 0x48000
Partition Start(MB) End(MB) Id Type
1               1      22   f0 Palo
2              23      64   83 ext2
3              65     194   82 swap
4             195    2046   83 ext2
Current command line:
2/vmlinux-test2 root=/dev/sda4 HOME=/ TERM=linux console=ttyS0
 0: 2/vmlinux-test2
 1: root=/dev/sda4
 2: HOME=/
 3: TERM=linux
 4: console=ttyS0


Edit which field?
(or 'b' to boot with this command line)? b
Command line: 'root=/dev/sda4 HOME=/ TERM=linux console=ttyS0'

Kernel: partition 2 file /vmlinux-test2
ext2 block size 1024
ext2_mount(partition 2) returns 0
ext2_open(/vmlinux-test2) = 3
ELF32 executable
Entry 001000b0 first 00100000 n 5
Segment 0 load 00100000 size 1694148 mediaptr 0x1000
Segment 1 load 0029e000 size 275544 mediaptr 0x19f000
Segment 2 load 002e4000 size 368640 mediaptr 0x1e3000
Segment 3 load 00340000 size 32768 mediaptr 0x23d000
Segment 4 load 0037dacc size 87008 mediaptr 0x245acc
branching to kernel entry point 0x001000b0
Set default PSW W bit to 0
Linux version 2.4.9-pa25 (ruediger@gandalf) (gcc version 3.0.2 20010825 (Debian prerelease)) #4 Die Sep 25 17:23:52 CEST 2001
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Older Legacy Box
model	000060b0 00000481 00000000 00000000 77b661a7 00000000 00000004 00000072 00000072
vers	0000000b
CPUID	vers 0 rev 0
model	9000/715
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda4 HOME=/ TERM=linux console=ttyS0
Console: colour dummy device 160x64
Calibrating delay loop... 99.73 BogoMIPS
Memory: 126164k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
POSIX conformance testing by UNIFIX
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf4000000, versions 0x4, 0x0, 0x77
2. Mirage GSC Builtin Graphics (10) at 0xf8000000, versions 0x13, 0x0, 0x85
3. Mirage Core BA (11) at 0xf0100000, versions 0x29, 0x0, 0x81
4. Mirage Core SCSI (10) at 0xf0106000, versions 0x29, 0x0, 0x82
5. Mirage Core LAN (802.3) (10) at 0xf0107000, versions 0x29, 0x0, 0x8a
6. Mirage Core RS-232 (10) at 0xf0105000, versions 0x29, 0x0, 0x8c
7. Mirage Core Centronics (10) at 0xf0102000, versions 0x29, 0x0, 0x74
8. Mirage Audio (10) at 0xf0104000, versions 0x29, 0x0, 0x7b
9. Mirage Core PC Floppy (10) at 0xf010a000, versions 0x29, 0x0, 0x83
10. Mirage Core PS/2 Port (10) at 0xf0108000, versions 0x29, 0x0, 0x84
11. Mirage Core PS/2 Port (10) at 0xf0108100, versions 0x29, 0x0, 0x84
12. Mirage Wax BA (11) at 0xf0200000, versions 0x13, 0x0, 0x8e
13. Mirage 100 Wax HIL (10) at 0xf0201000, versions 0x13, 0x0, 0x73
14. Mirage Wax RS-232 (10) at 0xf0202000, versions 0x13, 0x0, 0x8c
15. Mirage 100 (0) at 0xfffbe000, versions 0x60b, 0x0, 0x4
16. Mirage 100 (1) at 0xfffbf000, versions 0x4b, 0x0, 0x9
That's a total of 16 devices.
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
iosapic_init()
pdc_pci_irt_size: -1
Lasi version 0 at 0xf0100000 found.
LED display at f00e0000 registered
Wax at 0xf0200000 found.
Wax: HIL Keyboard-NMI registered.
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
VFS: Diskquotas version dquot_6.4.0 initialized
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0202800 (irq = 121) is a 16550A
Lasi PS/2 receive buffer timeout
PS/2 keyboard port at 0xf0108000 (irq 69) found, no device attached.
Lasi PS/2 transmit buffer timeout
PS/2 psaux port at 0xf0108100 (irq 69) found, no device attached.
Found HIL at 0xf0201000, IRQ 126
HIL: no keyboard present.
Warning : device (10, 0x13, 0x0, 0x73) NOT claimed by HIL
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 7A DC 08 IRQ 87.
82596.c $Revision: 1.22 $
SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c710 (SCSI-ID 7) at f0106100, IRQ 86, options 0
scsi0: Revision 0x2
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: SEAGATE   Model: ST32430N          Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
Lasi Harmony Audio rev. 18 at 0xf0104000, using IRQ 82
sticonsole_init: searching for STI ROMs
Trying STI ROM at f0025000, hpa at f4000000
STI word mode ROM at f0025000, hpa=f4000000
<7>selected 8x16 fb-font VGA8x16
STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
 supports 13 monitors
 font start 000037d4
 region list 000037c0
 init_graph 00000808
 alternate code type 0
region #0: phys f0025000, virt f0025000, len=24kB, btlb=1, sysonly=0, cache=0, last=0
region #1: phys f5000000, virt f5000000, len=16384kB, btlb=1, sysonly=0, cache=0, last=0
region #2: phys f4100000, virt f4100000, len=2560kB, btlb=1, sysonly=0, cache=0, last=0
region #3: phys f4380000, virt f4380000, len=4kB, btlb=0, sysonly=1, cache=0, last=1

GRs

0x00000000
0xF4300000
0xF4100000
0x00000001
0xF5000000
0x00000003
0x00000001
0xF0025328
0x0000000D
0xF034B958
0xF4300000
0x00000000
0x00080BEF
0x00010000
0x00000005
0x00000032
0x00000000
0x00283BAB
0x00000001
0x00000000
0x00000000
0xF0025000
0x00000500
0x0B00007D
0x00000001
0x00000000
0x00283BAB
0x1029E010
0x00000001
0xF034B958
0x0034BB98
0x000F93E8

CRs

0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x000000C0
0x0000001F
0x00000000
0x00000000
0x00106800
0xFFFFFFFF
0x402169B7
0x00000000
0x000F8944
0xB3202000
0x00000000
0x000F8964
0x00007F00
0x80000000
0x002BB000
0x002BB000
0x00A2848F
0x0900DEEE
0xAAAAAAAA
0xF0002000
0x105EC000
0x10340000

SRs

0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000

OTHER

0x00000000
0x000F8948
0x20000000
0x9E000004
0x00000000
0x00000000
0x00000000
0x00310000
0x00000000
0x00000000
0x00000000
0xF034B9D0
0xFFFBE000
0x00000000
0x00000082
0x2C1048E6
0x3BB0B040



WARNING! Stack pointer and cr30 do not correspond!

Dumping Stack from 0034a000 to 0034bb98:
WARNING! Stack pointer and cr30 do not correspond!

Dumping Stack from 102a0000 to 102a14c0:
0000 00000000 00000020 00000020 00020000 61402000 00000000 00000020 00001000
0020 00000001 00020000 61402000 00000000 00000020 00001000 00000001 00000078
0040 000d2000 00000000 00000000 00000001 00000000 00000000 00000001 00000001
0060 00000078 000c2000 00000000 00000000 00000001 00000000 00000000 00000001
0080 00000001 00000000 105ebf60 00000000 726f6f74 3d2f6465 762f7364 61342048
00a0 4f4d453d 2f205445 524d3d6c 696e7578 20636f6e 736f6c65 3d747479 53300000
00c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0100 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
01a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
01c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
01e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0200 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0220 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0240 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0260 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0280 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
02a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
02c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
02e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0300 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0320 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0340 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0360 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0380 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
03a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
03c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
03e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0400 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0420 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0440 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0460 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0480 00000000 00000000 00000000 00000000 726f6f74 3d2f6465 762f7364 61340048
04a0 4f4d453d 2f005445 524d3d6c 696e7578 00636f6e 736f6c65 3d747479 53300000
04c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
04e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0500 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0520 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0540 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0560 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0580 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
05a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
05c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
05e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0600 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0620 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0640 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0660 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0680 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
06a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
06c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
06e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0700 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0720 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0740 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0760 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0780 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
07a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
07c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
07e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0800 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0820 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0840 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0860 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0880 00000000 00000000 00000000 00000000 10101efc 10102798 00000000 00000000
08a0 10275ba4 00000000 00000000 1021aa30 00000000 00000000 10295ec0 105961a0
08c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
08e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0900 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0920 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1021aa30
0940 00000000 00000000 10295f84 10596260 00000000 00000000 00000000 00000000
0960 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0980 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
09a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
09c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
09e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0a00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0a20 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0a40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0a60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0a80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0aa0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0ac0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0ae0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0b00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0b20 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0b40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0b60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0b80 00000000 00000000 00000000 00000000 00000000 10103444 10102a34 10103460
0ba0 10103460 102ae0c0 10275bac 00000003 00000020 102a0894 00000000 102a0b94
0bc0 105961e0 105962a0 00000000 00000000 00000000 00000000 00000000 00000000
0be0 00000000 00000000 00000000 00000000 00000000 00000000 105e20a0 00000002
0c00 00000009 10103588 10103a80 10103c84 10103d08 10103d70 10103df8 10103e8c
0c20 10103f10 10103f64 10103588 10103fbc 10103fc4 10103d08 10103d70 10103df8
0c40 10103e8c 10103f10 10103f64 102a0c04 10276100 1027610c 10276114 1027611c
0c60 10276128 10276130 1027611c 1027613c 10276150 10276160 10276168 1027617c
0c80 10276188 10276194 102761b0 00000000 00000000 00000000 00000000 00000000
0ca0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0cc0 00000000 00000000 00000000 102761d0 102761e0 102761f0 102761f4 10276204
0ce0 1027620c 1027621c 10276224 10276234 1027623c 10276250 10276258 1027626c
0d00 10276274 10276284 10276288 10276284 10276298 10276284 102762a8 10276284
0d20 00000002 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0d40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0d60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0d80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0da0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0dc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0de0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0e00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0e20 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0e40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0e60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0e80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0ea0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0ec0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0ee0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0f00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0f20 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0f40 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0f60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0f80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0fa0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0fc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
0fe0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1020 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1040 00000000 00000000 00000000 002ad000 00000000 00000000 00000000 00000000
1060 00000000 00000000 00000000 0010c580 00000000 00000000 00000000 00000000
1080 00007f00 f4300000 f4100000 00000001 f5000000 00000003 00000001 f0025328
10a0 0000000d f034b958 f4300000 00000000 00080bef 00010000 00000005 00000032
10c0 00000000 00283bab 00000001 00000000 00000000 f0025000 00000500 0b00007d
10e0 00000001 00000000 00283bab 1029e010 00000001 f034b958 0034bb98 000f93e8
1100 00000082 2c1048e6 3bb0b040 00000000 00000000 00000000 00000000 00000000
1120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
11a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
11c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
11e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1200 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1220 00000000 00000000 000f8944 000f8948 00000000 00000000 00000000 00000000
1240 00000000 0000001f b3202000 00000000 000f8964 00000000 00000000 00000000
1260 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1280 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
12a0 00000000 00000000 00000000 10107750 00000000 00000000 00000000 00000000
12c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
12e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1300 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1320 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1340 00000000 00000000 0000001f 002a5000 002bb000 f0012870 00000000 00000000
1360 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1380 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
13a0 00000000 00000000 00000000 1010206c 00000000 00000000 00000000 00000000
13c0 00000000 00000001 00000000 102a1080 00000000 00000000 00000000 f0002840
13e0 00310000 00000030 f034b958 0000000d f0002848 00000000 00000001 00000000
1400 102a1080 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1420 00000000 00000000 00000000 101025c8 00000000 00000000 00000000 00000000
1440 102758e8 00000001 102a1080 102a1080 00000008 0000001f 102a1080 10275af0
1460 00000000 00000000 00000000 101024e4 00000000 00000000 00000000 00000000
1480 102a1080 f034b9d0 00000000 00000000 00000060 0034bb98 0034a000 10275ad0
14a0 0000000d f0002848 10340000 101023f0 0034bb98 0034a000 00000000 00000000

Kernel Fault: Code=15 regs=102a14c0 (Addr=0034a004)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110
r0-3     00000000 1034d9e1 101025c8 0034a000
r4-7     0034bb98 10275800 00000000 f0002848
r8-11    0000000d f034b958 00000030 00310000
r12-15   f0002840 00000000 00000000 f034b9d0
r16-19   102a1080 00283bab 00000082 000000ff
r20-23   0001aa11 f0105800 01c9c380 00000060
r24-27   00000001 00000001 102b10c8 1029e010
r28-31   0000002a 00000000 102a14c0 00000000
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101023fc 10102400
 IIR: 0c681097    ISR: 00000000  IOR: 0034a004
 CPU:        0   CR30: 105ec000 CR31: 10340000
 ORIG_R28: 102a1080

--------------010101030300000003010504--





From - Thu Nov 08 21:19:20 2018
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] Additional Address cleanup
Date: Tue, 25 Sep 2001 21:00:35 +0200
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References: <20010921104838.A2049@beavis.ybsoft.com> <3BAF13BC.3090302@hrzpub.tu-darmstadt.de> <20010924215918.A23464@beavis.ybsoft.com> <3BB0BFF9.50708@hrzpub.tu-darmstadt.de>
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Cc: Ryan Bradetich <rbradetich@uswest.net>,
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To: =?iso-8859-1?Q?R=FCdiger_Scholz?= <rscholz@hrzpub.tu-darmstadt.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:12291

On Tue, Sep 25, 2001 at 07:33:45PM +0200, Rdiger Scholz wrote:
> Ryan Bradetich wrote:
> 
> >
> >First I am assuming this worked before you tested this patch....
> >
> No ;-) It crashes, when the kernel tries to initialize the first 
> graphics card (Coral), during STICALL (...) in function sti_init_graph...

bug in the sti code. It doesn't use the sti rom from the card, but from
the onboard sti rom. I've played with my 715/100 with an extra HCRX and
had the same problem. I've disabled the HCRX by removing the connection
between mainboard and HCRX, then the kernel from the 0.9.2 crashed after
starting the init from the install ramdisk (Kernel Fault: Code=15) :-(

Hopefully I'll get some sti hacking done during the upcoming Linux
Hackermeeting in Oldenburg coming weekend.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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From: Chuck Slivkoff <charles_slivkoff@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] do_page_fault() on 712/60 running 2.4.9-pa22
Date: Tue, 25 Sep 2001 17:57:51 -0400
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This is a multi-part message in MIME format.
--------------19476CE09D44B19A939AE487
Content-Type: text/plain; charset=us-ascii
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Hello all,

I've seen this several times before (& posted to the list as well), but
can't figure out what might be causing it or how to duplicate it. I
noticed today that ~ 3:30 AM EDT, several do_page_fault() errors were
reported (kern.log attached).

This is running 2.4.9-pa22 kernel which I build a few days ago from CVS.
Earlier, I had thought that the problem might be related to swapping,
but couldn't duplicate the problem at will. 

# cat /proc/version 
Linux version 2.4.9-pa22 (root@dlarry) (gcc version 3.0.2 20010825
(Debian prerelease)) #7 Fri Sep 21 16:37:05 EDT 2001

Can anyone offer a suggestion as to how to investigate this further?
Would updating glibc help?

Thanks,

-chuck
--------------19476CE09D44B19A939AE487
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--------------19476CE09D44B19A939AE487--





From - Thu Nov 08 21:19:20 2018
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X-Mozilla-Keys:                                                                                 
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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] First Draft of the help for the kernel options
Date: Wed, 26 Sep 2001 00:42:01 +0200
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Hi all,

	As you know, PA/Linux source needs some help to guide their users.
That's why I tried to complete the documentation for the kernel. I would
like to know your point of view and your modifications. I send what we
must add at Documentation/Configuration.help. If you want to reply, try
to cut only the most interesting part in order to have small replies.

Thanks in advance, Thomas.
ESIEE Team


Here is the first draft:
==================================================================================

GSC/Gecko bus support
CONFIG_GSC
  This option gives to the kernel the capability to manage GSC buses 
  of HP computers. This option is compulsory if you want it working.

LASI I/O support
CONFIG_GSC_LASI
  LASI is one type of controller embedded in HP workstations and 
  servers. It controls some I/O devices like PS2 keyboard and mouse, 
  audio or serial interface. The best advice is to keep it in your 
  configuration, if you are not sure about that point.

GSCtoPCI/DINO PCI support
CONFIG_GSC_DINO
  By selecting this item, you add the use of your PCI extension slots.
  In order to be useful, you need a quite recent HP computer like those
  based on PA7300LC or PA8X00.

Chassis LCD and LED support
CONFIG_CHASSIS_LCD_LED
  HP boxes have LED or LCD indicator on the front in order to show some 
  basic information like status for example. With this enabled, you can
  have this help also available.

Kernel support for SOM binaries
CONFIG_BINFMT_SOM
  SOM (Spectrum Object Model) is a format for libraries and executables 
  used by HP. Saying Y here will enable your kernel to run SOM binaries.
  As a result, you could run HP-UX executables. This capability is still
  in development. Then, you use this functionality with no warranty!

LASI/ASP builtin parallel-port
CONFIG_PARPORT_GSC
  If you have a LASI or ASP controller in your HP box and you want to
use 
  the parallel port, a good idea will be to keep this item in your
  configuration.

HP Lasi SCSI support
CONFIG_SCSI_LASI
  If you have an old HP system like a 712, you should keep this on.
  This will enable the 
  For quite recent computers, you may be able to turn this off. 

Lasi ethernet
CONFIG_LASI_82596
  This option adds the driver for one of most used network cards. It
  is also known as Apricot driver. It is based on an Intel 82596 chip.
  If you do not know what is your hardware, it is strongly recommended
  to keep is on.

Support for Lasi/Dino PS2 port
CONFIG_GSC_PS2
  The PS2 connector of the HP boxes looks like a standard PC connector.
  If you want to use the PS2 keyboard and mouse, you must keep this on.
  Anyway, some HP workstations and servers have this kind of interfaces
  but not the ports you can plug in your devices. Thus, the best thing
  to do anyway is to let this choice turned on.

serial port on GSC support
CONFIG_SERIAL_GSC
  For most of the HP servers and for some workstations that do not have 
  its video card supported yet, you will need to get the console output
  via the serial port. As a result, you could interact with the box via
  a VT or a serial cable link to another computer.

STI console
CONFIG_STI_CONSOLE
  The Standard Text Interface could correspond to the VGA support for
PC.
  HP developped STI as a mechanism between CPU and graphics devices. 
  Thus, if you want your console on your screen like any other PC linux
  does, leave this option on.
  If you do not have any success with your console output, we advice you
  to check if you have checked the STI frame buffer option, aka 
  CONFIG_FB_STI, in your configuration. Some models are happy when the 
  two of them are enabled and some others prefer to have only this one 
  only.
  Anyway, if you failed to have the screen output, you can switch to the 
  serial console output.

PA Harmony audio driver
CONFIG_SOUND_HARMONY
  This option enables the audio part of the LASI controller. Since it is 
  standard to all the boxes, this option should be set for any 
  workstation. Servers do not really need audio. Then, you can unset it.




From - Thu Nov 08 21:19:20 2018
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X-Mozilla-Keys:                                                                                 
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From: Richard Allen <ra@hp.is>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Trace/breakpoint trap
Date: Tue, 25 Sep 2001 23:42:25 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:12294

Here's a wild one:

bofh:~/rpm-4.0.3/rpmdb# make
Trace/breakpoint trap
bofh:~/rpm-4.0.3/rpmdb# echo $?
133
bofh:~/rpm-4.0.3/rpmdb#

Nothing is wrong there.  Moving that directory over ti a i686 system gives no
problems.

Whats wrong ?

bofh:~# uname -a
Linux bofh 2.4.9-pa24 #2 Fri Sep 21 20:40:31 UTC 2001 parisc unknown
bofh:~# gcc --version
3.0.2

It's apt-get updated to the max.




-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




From - Thu Nov 08 21:19:20 2018
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X-Mozilla-Keys:                                                                                 
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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] The new HOWTO
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Hi again,

	I would like to remind everybody that we have the PA-RISC/Linux Boot
HOWTO and I try to keep it up-to-date. I just released a new version
that includes some little changes and the redaction of "obtaining
bootp/tftpd". I would like to have some feedback and specially if you
authorize me to move to the stable state in order to get into the Linux
DocumentationProject as an official HOWTO!

	I would like to know if this would have helped the new guys recently
arrived. If not, tell me what you expected to find in it!

The URL is http://mkhppa1.esiee.fr/doc.html

Thanks for your feedback, Thomas.
ESIEE Team




From - Thu Nov 08 21:19:21 2018
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X-Mozilla-Keys:                                                                                 
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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trace/breakpoint trap
Date: Tue, 25 Sep 2001 18:18:57 -0600
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Cc: parisc-linux@parisc-linux.org
To: Richard Allen <ra@hp.is>
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Xref: news.gmane.org gmane.linux.ports.parisc:12296

Richard Allen writes...

> Here's a wild one:
> 
> bofh:~/rpm-4.0.3/rpmdb# make
> Trace/breakpoint trap
> bofh:~/rpm-4.0.3/rpmdb# echo $?
> 133
> bofh:~/rpm-4.0.3/rpmdb#

Try it with strace and post the results. Was anything printed on the console?

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Richard Allen <ra@hp.is>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Trace/breakpoint trap
Date: Wed, 26 Sep 2001 00:38:11 +0000
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To: Matt Taggart <taggart@carmen.fc.hp.com>
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On Tue, Sep 25, 2001 at 06:18:57PM -0600, Matt Taggart wrote:
> 
> Richard Allen writes...
> 
> > Here's a wild one:
> > 
> > bofh:~/rpm-4.0.3/rpmdb# make
> > Trace/breakpoint trap
> > bofh:~/rpm-4.0.3/rpmdb# echo $?
> > 133
> > bofh:~/rpm-4.0.3/rpmdb#
> 
> Try it with strace and post the results. Was anything printed on the console?

The console is on the other side of town.    Will check it tomorrow morning.


execve("/usr/bin/make", ["make"], [/* 17 vars */]) = 0
newuname({sys="Linux", node="bofh", ...}) = 0
brk(0)                                  = 0x44000
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 7438, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40019000
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\300"..., 1024) = 1024
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001b000
mmap(NULL, 1417616, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4002a000
mprotect(0x40167000, 119184, PROT_NONE) = 0
mmap(0x40176000, 45056, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x13c000) = 0x40176000
mmap(0x40181000, 12688, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40181000
close(3)                                = 0
mprotect(0x10000, 135168, PROT_READ|PROT_WRITE) = 0
mprotect(0x10000, 135168, PROT_READ|PROT_EXEC) = 0
munmap(0x40019000, 7438)                = 0
getpid()                                = 4206
brk(0)                                  = 0x44000
brk(0x44030)                            = 0x44030
brk(0x45000)                            = 0x45000
rt_sigaction(SIGHUP, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGQUIT, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGINT, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGTERM, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGXCPU, {0x40c2e, [HUP], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGXFSZ, {0x40c2e, [INT], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGCHLD, {SIG_DFL}, {SIG_DFL}, 8) = 0
getcwd("/root/rpm-4.0.3/rpmdb", 4095)   = 22
stat64("/usr/include", {st_mode=0, st_size=0, ...}) = 0
stat64("/usr/gnu/include", 0xbff01cc8)  = -1 ENOENT (No such file or directory)
stat64("/usr/local/include", {st_mode=0, st_size=50, ...}) = 0
stat64("/usr/include", {st_mode=0, st_size=0, ...}) = 0
rt_sigaction(SIGCHLD, {0x40dae, [], SA_INTERRUPT}, NULL, 8) = 0
rt_sigaction(SIGUSR1, {0x40ace, [], SA_RESTART}, {SIG_DFL}, 8) = 0
brk(0x46000)                            = 0x46000
brk(0x47000)                            = 0x47000
brk(0x48000)                            = 0x48000
stat64(".", {st_mode=0, st_size=9281424328817, ...}) = 0
open(".", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=0, st_size=9281424328817, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
brk(0x4a000)                            = 0x4a000
getdents64(0x3, 0x47e70, 0x1000)        = 1096
getdents64(0x3, 0x47e70, 0x1000)        = 0
close(3)                                = 0
open("Makefile", O_RDONLY|O_LARGEFILE)  = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(3, "# Generated automatically from M"..., 4096) = 4096
brk(0x4b000)                            = 0x4b000
read(3, " yes\nVERSION = 4.0.3\nWITH_APIDOC"..., 4096) = 4096
brk(0x4c000)                            = 0x4c000
brk(0x4d000)                            = 0x4d000
read(3, "n-compile:\n\t-rm -f *.o core *.co"..., 4096) = 4096
brk(0x4e000)                            = 0x4e000
brk(0x4f000)                            = 0x4f000
brk(0x50000)                            = 0x50000
brk(0x51000)                            = 0x51000
brk(0x52000)                            = 0x52000
read(3, "og.h \\\n\t../rpmio/rpmerr.h ../lib"..., 4096) = 3537
brk(0x53000)                            = 0x53000
brk(0x54000)                            = 0x54000
brk(0x55000)                            = 0x55000
brk(0x56000)                            = 0x56000
brk(0x57000)                            = 0x57000
read(3, "", 4096)                       = 0
close(3)                                = 0
munmap(0x40019000, 4096)                = 0
stat64("RCS", 0xbff01d88)               = -1 ENOENT (No such file or directory)
stat64("SCCS", 0xbff01d88)              = -1 ENOENT (No such file or directory)
stat64("Makefile", {st_mode=0, st_size=0, ...}) = 0
time(NULL)                              = 1001464278
stat64("Makefile.in", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("Makefile.am", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../configure.in", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("..", {st_mode=0, st_size=9281424328817, ...}) = 0
open("..", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=0, st_size=9281424328817, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
brk(0x59000)                            = 0x59000
getdents64(0x3, 0x56b60, 0x1000)        = 2520
getdents64(0x3, 0x56b60, 0x1000)        = 0
close(3)                                = 0
stat64("../RCS", 0xbff02440)            = -1 ENOENT (No such file or directory)
stat64("../SCCS", 0xbff02440)           = -1 ENOENT (No such file or directory)
stat64("../config.status", {st_mode=0, st_size=0, ...}) = 0
stat64("librpmdb.la", 0xbff02248)       = -1 ENOENT (No such file or directory)
stat64("dbconfig.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("dbconfig.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../system.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../config.h", {st_mode=0, st_size=0, ...}) = 0
stat64("../db3/db.h", {st_mode=0, st_size=0, ...}) = 0
stat64("../db3", {st_mode=0, st_size=9281424328817, ...}) = 0
open("../db3", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=0, st_size=9281424328817, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
getdents64(0x3, 0x56b60, 0x1000)        = 4064
getdents64(0x3, 0x56b60, 0x1000)        = 4080
brk(0x5a000)                            = 0x5a000
getdents64(0x3, 0x56b60, 0x1000)        = 4040
brk(0x5b000)                            = 0x5b000
brk(0x5c000)                            = 0x5c000
getdents64(0x3, 0x56b60, 0x1000)        = 0
close(3)                                = 0
stat64("../db3/RCS", 0xbff028c8)        = -1 ENOENT (No such file or directory)
stat64("../db3/SCCS", 0xbff028c8)       = -1 ENOENT (No such file or directory)
stat64("../lib/rpmlib.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../lib", {st_mode=0, st_size=9281424328817, ...}) = 0
open("../lib", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=0, st_size=9281424328817, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
brk(0x5e000)                            = 0x5e000
getdents64(0x3, 0x5b130, 0x1000)        = 1736
getdents64(0x3, 0x5b130, 0x1000)        = 0
close(3)                                = 0
stat64("../lib/RCS", 0xbff028c8)        = -1 ENOENT (No such file or directory)
stat64("../lib/SCCS", 0xbff028c8)       = -1 ENOENT (No such file or directory)
stat64("../rpmio/rpmio.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../rpmio", {st_mode=0, st_size=9281424328817, ...}) = 0
open("../rpmio", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=0, st_size=9281424328817, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
getdents64(0x3, 0x5b130, 0x1000)        = 1704
getdents64(0x3, 0x5b130, 0x1000)        = 0
close(3)                                = 0
stat64("../rpmio/RCS", 0xbff028c8)      = -1 ENOENT (No such file or directory)
stat64("../rpmio/SCCS", 0xbff028c8)     = -1 ENOENT (No such file or directory)
stat64("../rpmio/rpmmessages.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../rpmio/rpmlog.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../rpmio/rpmerr.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../lib/header.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../lib/hdrinline.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../popt/popt.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../popt", {st_mode=0, st_size=9281424328817, ...}) = 0
open("../popt", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=0, st_size=9281424328817, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
getdents64(0x3, 0x5c510, 0x1000)        = 2008
getdents64(0x3, 0x5c510, 0x1000)        = 0
close(3)                                = 0
stat64("../popt/RCS", 0xbff028c8)       = -1 ENOENT (No such file or directory)
stat64("../popt/SCCS", 0xbff028c8)      = -1 ENOENT (No such file or directory)
stat64("../rpmio/rpmmacro.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("rpmdb.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("fprint.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("rpmhash.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../debug.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("fprint.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("fprint.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("poptDB.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("poptDB.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../lib/rpmcli.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../rpmio/rpmurl.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("rpmhash.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("rpmhash.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("rpmdb.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("rpmdb.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../lib/misc.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../rpmio/ugid.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("db3.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("db3.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("db1.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("db1.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../rpmio/rpmio_internal.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("falloc.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("falloc.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("falloc.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64(".created", 0xbff023c8)          = -1 ENOENT (No such file or directory)
pipe([3, 4])                            = 0
fork()                                  = 4207
--- SIGCHLD (Child exited) ---
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++

Here it ends with a SEGV.   strace seems to change the behaviour ?  I then
tried strace -f and got (I hung, I had to break it. The last line repeating
forever):


execve("/usr/bin/make", ["make"], [/* 17 vars */]) = 0
newuname({sys="Linux", node="bofh", ...}) = 0
brk(0)                                  = 0x44000
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 7438, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40019000
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\300"..., 1024) = 1024
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001b000
mmap(NULL, 1417616, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4002a000
mprotect(0x40167000, 119184, PROT_NONE) = 0
mmap(0x40176000, 45056, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x13c000) = 0x40176000
mmap(0x40181000, 12688, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40181000
close(3)                                = 0
mprotect(0x10000, 135168, PROT_READ|PROT_WRITE) = 0
mprotect(0x10000, 135168, PROT_READ|PROT_EXEC) = 0
munmap(0x40019000, 7438)                = 0
getpid()                                = 4248
brk(0)                                  = 0x44000
brk(0x44030)                            = 0x44030
brk(0x45000)                            = 0x45000
rt_sigaction(SIGHUP, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGQUIT, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGINT, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGTERM, {0x40c2e, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGXCPU, {0x40c2e, [HUP], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGXFSZ, {0x40c2e, [INT], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGCHLD, {SIG_DFL}, {SIG_DFL}, 8) = 0
getcwd("/root/rpm-4.0.3/rpmdb", 4095)   = 22
stat64("/usr/include", {st_mode=0, st_size=0, ...}) = 0
stat64("/usr/gnu/include", 0xbff01cc8)  = -1 ENOENT (No such file or directory)
stat64("/usr/local/include", {st_mode=0, st_size=50, ...}) = 0
stat64("/usr/include", {st_mode=0, st_size=0, ...}) = 0
rt_sigaction(SIGCHLD, {0x40dae, [], SA_INTERRUPT}, NULL, 8) = 0
rt_sigaction(SIGUSR1, {0x40ace, [], SA_RESTART}, {SIG_DFL}, 8) = 0
brk(0x46000)                            = 0x46000
brk(0x47000)                            = 0x47000
brk(0x48000)                            = 0x48000
stat64(".", {st_mode=0, st_size=9281424328817, ...}) = 0
open(".", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=0, st_size=9281424328817, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
brk(0x4a000)                            = 0x4a000
getdents64(0x3, 0x47e70, 0x1000)        = 1128
getdents64(0x3, 0x47e70, 0x1000)        = 0
close(3)                                = 0
open("Makefile", O_RDONLY|O_LARGEFILE)  = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(3, "# Generated automatically from M"..., 4096) = 4096
brk(0x4b000)                            = 0x4b000
read(3, " yes\nVERSION = 4.0.3\nWITH_APIDOC"..., 4096) = 4096
brk(0x4c000)                            = 0x4c000
brk(0x4d000)                            = 0x4d000
read(3, "n-compile:\n\t-rm -f *.o core *.co"..., 4096) = 4096
brk(0x4e000)                            = 0x4e000
brk(0x4f000)                            = 0x4f000
brk(0x50000)                            = 0x50000
brk(0x51000)                            = 0x51000
brk(0x52000)                            = 0x52000
read(3, "og.h \\\n\t../rpmio/rpmerr.h ../lib"..., 4096) = 3537
brk(0x53000)                            = 0x53000
brk(0x54000)                            = 0x54000
brk(0x55000)                            = 0x55000
brk(0x56000)                            = 0x56000
brk(0x57000)                            = 0x57000
read(3, "", 4096)                       = 0
close(3)                                = 0
munmap(0x40019000, 4096)                = 0
stat64("RCS", 0xbff01d88)               = -1 ENOENT (No such file or directory)
stat64("SCCS", 0xbff01d88)              = -1 ENOENT (No such file or directory)
stat64("Makefile", {st_mode=0, st_size=0, ...}) = 0
time(NULL)                              = 1001464482
stat64("Makefile.in", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("Makefile.am", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../configure.in", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("..", {st_mode=0, st_size=9281424328817, ...}) = 0
open("..", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=0, st_size=9281424328817, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
brk(0x59000)                            = 0x59000
getdents64(0x3, 0x56b80, 0x1000)        = 2520
getdents64(0x3, 0x56b80, 0x1000)        = 0
close(3)                                = 0
stat64("../RCS", 0xbff02440)            = -1 ENOENT (No such file or directory)
stat64("../SCCS", 0xbff02440)           = -1 ENOENT (No such file or directory)
stat64("../config.status", {st_mode=0, st_size=0, ...}) = 0
stat64("librpmdb.la", 0xbff02248)       = -1 ENOENT (No such file or directory)
stat64("dbconfig.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("dbconfig.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../system.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../config.h", {st_mode=0, st_size=0, ...}) = 0
stat64("../db3/db.h", {st_mode=0, st_size=0, ...}) = 0
stat64("../db3", {st_mode=0, st_size=9281424328817, ...}) = 0
open("../db3", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=0, st_size=9281424328817, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
getdents64(0x3, 0x56b80, 0x1000)        = 4064
getdents64(0x3, 0x56b80, 0x1000)        = 4080
brk(0x5a000)                            = 0x5a000
getdents64(0x3, 0x56b80, 0x1000)        = 4040
brk(0x5b000)                            = 0x5b000
brk(0x5c000)                            = 0x5c000
getdents64(0x3, 0x56b80, 0x1000)        = 0
close(3)                                = 0
stat64("../db3/RCS", 0xbff028c8)        = -1 ENOENT (No such file or directory)
stat64("../db3/SCCS", 0xbff028c8)       = -1 ENOENT (No such file or directory)
stat64("../lib/rpmlib.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../lib", {st_mode=0, st_size=9281424328817, ...}) = 0
open("../lib", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=0, st_size=9281424328817, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
brk(0x5e000)                            = 0x5e000
getdents64(0x3, 0x5b150, 0x1000)        = 1736
getdents64(0x3, 0x5b150, 0x1000)        = 0
close(3)                                = 0
stat64("../lib/RCS", 0xbff028c8)        = -1 ENOENT (No such file or directory)
stat64("../lib/SCCS", 0xbff028c8)       = -1 ENOENT (No such file or directory)
stat64("../rpmio/rpmio.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../rpmio", {st_mode=0, st_size=9281424328817, ...}) = 0
open("../rpmio", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=0, st_size=9281424328817, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
getdents64(0x3, 0x5b150, 0x1000)        = 1704
getdents64(0x3, 0x5b150, 0x1000)        = 0
close(3)                                = 0
stat64("../rpmio/RCS", 0xbff028c8)      = -1 ENOENT (No such file or directory)
stat64("../rpmio/SCCS", 0xbff028c8)     = -1 ENOENT (No such file or directory)
stat64("../rpmio/rpmmessages.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../rpmio/rpmlog.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../rpmio/rpmerr.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../lib/header.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../lib/hdrinline.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../popt/popt.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../popt", {st_mode=0, st_size=9281424328817, ...}) = 0
open("../popt", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=0, st_size=9281424328817, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
getdents64(0x3, 0x5c530, 0x1000)        = 2008
getdents64(0x3, 0x5c530, 0x1000)        = 0
close(3)                                = 0
stat64("../popt/RCS", 0xbff028c8)       = -1 ENOENT (No such file or directory)
stat64("../popt/SCCS", 0xbff028c8)      = -1 ENOENT (No such file or directory)
stat64("../rpmio/rpmmacro.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("rpmdb.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("fprint.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("rpmhash.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../debug.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("fprint.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("fprint.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("poptDB.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("poptDB.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../lib/rpmcli.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../rpmio/rpmurl.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("rpmhash.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("rpmhash.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("rpmdb.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("rpmdb.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../lib/misc.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../rpmio/ugid.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("db3.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("db3.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("db1.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("db1.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("../rpmio/rpmio_internal.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("falloc.h", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64("falloc.lo", {st_mode=0, st_size=0, ...}) = 0
stat64("falloc.c", {st_mode=0, st_size=9281424328817, ...}) = 0
stat64(".created", 0xbff023c8)          = -1 ENOENT (No such file or directory)
pipe([3, 4])                            = 0
fork()                                  = 4249
[pid  4248] close(4)                    = 0
[pid  4248] read(3,  <unfinished ...>
[pid  4249] dup2(4, 1)                  = 1
[pid  4249] close(4)                    = 0
[pid  4249] execve("/usr/local/sbin/cat", ["cat", "../db3/db3lobjs"], [/* 17 vars */]) = -1 ENOENT (No such file or directory)
[pid  4249] execve("/usr/local/bin/cat", ["cat", "../db3/db3lobjs"], [/* 17 vars */]) = -1074779704
[pid  4249] execve("/usr/bin/cat", ["cat", "../db3/db3lobjs"], [/* 17 vars */]) = -1 ENOENT (No such file or directory)
[pid  4249] execve("/sbin/cat", ["cat", "../db3/db3lobjs"], [/* 17 vars */]) = -1074779699
[pid  4249] execve("", [ptrace: umoven: Input/output error
0x2], [/* 2 vars */]) = 1073908880
[pid  4249] brk(0)                      = 0x23000
[pid  4249] open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid  4249] open("/etc/ld.so.cache", O_RDONLY) = 4
[pid  4249] fstat64(4, {st_mode=0, st_size=0, ...}) = 0
[pid  4249] mmap(NULL, 7438, PROT_READ, MAP_PRIVATE, 4, 0) = 0x40019000
[pid  4249] close(4)                    = 0
[pid  4249] open("/lib/libc.so.6", O_RDONLY) = 4
[pid  4249] read(4, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\300"..., 1024) = 1024
[pid  4249] fstat64(4, {st_mode=0, st_size=0, ...}) = 0
[pid  4249] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001b000
[pid  4249] mmap(NULL, 1417616, PROT_READ|PROT_EXEC, MAP_PRIVATE, 4, 0) = 0x4002a000
[pid  4249] mprotect(0x40167000, 119184, PROT_NONE) = 0
[pid  4249] mmap(0x40176000, 45056, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 4, 0x13c000) = 0x40176000
[pid  4249] mmap(0x40181000, 12688, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40181000
[pid  4249] close(4)                    = 0
[pid  4249] mprotect(0x10000, 12288, PROT_READ|PROT_WRITE) = 0
[pid  4249] mprotect(0x10000, 12288, PROT_READ|PROT_EXEC) = 0
[pid  4249] munmap(0x40019000, 7438)    = 0
[pid  4249] getpid()                    = 4249
[pid  4249] brk(0)                      = 0x23000
[pid  4249] brk(0x23030)                = 0x23030
[pid  4249] brk(0x24000)                = 0x24000
[pid  4249] fstat64(1, {st_mode=0, st_size=0, ...}) = 0
[pid  4249] open("../db3/db3lobjs", O_RDONLY|O_LARGEFILE) = 4
[pid  4249] fstat64(4, {st_mode=0, st_size=0, ...}) = 0
[pid  4249] brk(0x26000)                = 0x26000
[pid  4249] read(4, "mut_fcntl.lo client.lo db_server"..., 4096) = 1735
[pid  4249] write(1, "mut_fcntl.lo client.lo db_server"..., 1735) = 1735
[pid  4249] read(4, "", 4096)           = 0
[pid  4249] close(4)                    = 0
[pid  4249] close(1)                    = 0
[pid  4249] exit(0)                     = ?
<... read resumed> "mut_fcntl.lo client.lo db_server"..., 200) = 200
--- SIGCHLD (Child exited) ---
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200
rt_sigreturn(0)                         = 200



-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




From - Thu Nov 08 21:19:21 2018
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From: Richard Allen <ra@hp.is>
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Subject: Re: [parisc-linux] Trace/breakpoint trap
Date: Wed, 26 Sep 2001 01:16:13 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:12298

On Tue, Sep 25, 2001 at 06:18:57PM -0600, Matt Taggart wrote:
> Try it with strace and post the results. Was anything printed on the console?

Im as thick as they come.   Ofcource kernel messages are in dmesg...

Lots and lots of the following:


     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011000000000000001011
r0-3	 00000000 00040130 bff028b8 bff02818
r4-7	 000000c8 40176434 0005d5a0 0004beb6
r8-11	 00000001 0004be88 000401ec bff02790
r12-15	 00000028 00000029 bff02690 00000000
r16-19	 00000000 00043130 0002a800 00000000
r20-23	 000000ad 40106c54 40178e50 40178e30
r24-27	 00000005 00000001 00000000 00040130
r28-31	 000000c8 0005d598 bff02b38 00019ca4
sr0-3	 00000132 0000012f 00000000 00000132
sr4-7	 00000132 00000132 00000132 00000132

IASQ: 00000132 00000132 IAOQ: bff02cd7 bff03d83
 IIR: 00000000    ISR: 00000132  IOR: 00000000
 CPU:        0   CR30: 1bef0000 CR31: 10358000
 ORIG_R28: 40176434
break 0,0: pid=4248 command='make'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011000000000000001011
r0-3	 00000000 00040130 bff028b8 bff02818
r4-7	 000000c8 40176434 0005d5a0 0004beb6
r8-11	 00000001 0004be88 000401ec bff02790
r12-15	 00000028 00000029 bff02690 00000000
r16-19	 00000000 00043130 0002a800 00000000
r20-23	 000000ad 40106c54 40178e50 40178e30
r24-27	 00000005 00000001 00000000 00040130
r28-31	 000000c8 0005d598 bff02b38 00019ca4
sr0-3	 00000132 0000012f 00000000 00000132
sr4-7	 00000132 00000132 00000132 00000132

IASQ: 00000132 00000132 IAOQ: bff02cd7 bff03d83
 IIR: 00000000    ISR: 00000132  IOR: 00000000
 CPU:        0   CR30: 1bef0000 CR31: 10358000
 ORIG_R28: 40176434
break 0,0: pid=4248 command='make'



-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




From - Thu Nov 08 21:19:21 2018
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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
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Subject: Betr.: Re: [parisc-linux] Trace/breakpoint trap
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>On Tue, Sep 25, 2001 at 06:18:57PM -0600, Matt Taggart wrote:
>>=20
>> Richard Allen writes...
>>=20
>> > Here's a wild one:
>> >=20
>> > bofh:~/rpm-4.0.3/rpmdb# make
>> > Trace/breakpoint trap
>> > bofh:~/rpm-4.0.3/rpmdb# echo $?
>> > 133
>> > bofh:~/rpm-4.0.3/rpmdb#
>>=20
<snip>

>[pid  4249] close(4)                    =3D 0
>[pid  4249] close(1)                    =3D 0
>[pid  4249] exit(0)                     =3D ?
><... read resumed> "mut_fcntl.lo client.lo db_server"..., 200) =3D 200
>--- SIGCHLD (Child exited) ---
>rt_sigreturn(0)                         =3D 200
>rt_sigreturn(0)                         =3D 200
<snip>

I have exactly the same on my C200+, since 2.4.9-<who knows>, but it went
away when I didn't compile the kernel for PA8x00, but for the default =
value
of PA7100. That means it may be something in the kernel, or some gcc bug.
In my case, a 'make mrproper' in the kernel source directory triggered it.

I have posted it to this list, some weeks ago (under much the same =
subject).

Perhaps recompiling your kernel also fixes it?

Good luck,
Jurriaan





From - Thu Nov 08 21:19:21 2018
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Subject: [parisc-linux] HP C180
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Xref: news.gmane.org gmane.linux.ports.parisc:12300

My c180 is now happily booting (current CVS kernel), however whenever I
try to ls some dirs (no all, this example is from /usr/bin) I get errors
along these lines
ls: memory exhausted
init-2.04# ls ap*
./apt-get


SysRq: Boot Sync Unmount showPc showTasks showMem loglevel0-8 tErm kIll
killalL
SysRq: Show Regs
SysRq: Show State

                         free                        sibling
  task             PC    stack   pid father child younger older
init          R current      0     1      0    10       3       (NOTLB)
keventd       S 00ABCDEF     0     2      1             9       (L-TLB)
ksoftirqd_CPU S 00ABCDEF     0     3      0             4     1 (L-TLB)
kswapd        S 00ABCDEF     0     4      0             5     3 (L-TLB)
kreclaimd     S 00ABCDEF     0     5      0             6     4 (L-TLB)
bdflush       S 00ABCDEF     0     6      0             7     5 (L-TLB)
kupdated      S 00ABCDEF     0     7      0                   6 (L-TLB)
mdrecoveryd   S 00ABCDEF     0     9      1            10     2 (L-TLB)
rpciod        S 00ABCDEF     0    10      1                   9 (L-TLB)
SysRq: Show Memory
Mem-info:
Free pages:      118612kB (     0kB HighMem)
( Active: 491, inactive_dirty: 861, inactive_clean: 0, free: 29653 (255
510 765) )
105*4kB 48*8kB 35*16kB 14*32kB 9*64kB 6*128kB 3*256kB 2*512kB 3*1024kB
54*2048kB = 118612kB)
= 0kB)
= 0kB)
Swap cache: add 0, delete 0, find 0/0
Free swap:            0kB
32768 pages of RAM
1223 reserved pages
296 pages shared
0 pages swap cached
Buffer memory:     2372kB

>From now on I can'not get anything out of the system without a
reboot.  Sometimes it recovers, sometimes not.  I tried to get as much
information as possible with sysrequests.  Would additional information be
usefull, if so what?  This has only happened on nfs filesystems, as I have
no local filesystems yet.
	Nick





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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] How to merge Kernel 2.4.9 for hppa and new
	kernel 2.4.10
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>Hi all,
>
>I just learn that new release 2.4.10 of GNU/linux kernel was released.
>I am curious to know how to merge last kernel 2.4.9-paxx and the new
>2.4.10?
>Is somebody can explain me or where to find relevant info?
>

- get a plain 2.4.9 source tree
- make a diff between 2.4.9-paxx and 2.4.9
- download the 2.4.9-2.4.10 diff
- apply to the 2.4.9 sourcetree and create a 2.4.10 sourcetree
- apply 2.4.9-paxx diff to 2.4.10

which should all be straight-forward, but then
- solve all the .rej files that are created, and debug the new kernel

which is something I wouldn't want to do :-)

If you read the linux-kernel mailing list, you'll see that some people =
claim=20
2.4.10 is the best thing since sliced bread, but the first serious VM =
problems
have been sighted already, so upgrading right away is risky.

Eventually, it'll be in the CVS at puffin.external.hp.com. Until then, the =
best
thing to do is wait, unless you have the capabilities to debug the last =
step.
If so, I think there are other things to get your teeth in - just ask =
here.

Good luck,
Jurriaan







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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Betr.: [parisc-linux] HP C180
Date: Wed, 26 Sep 2001 08:56:08 +0200
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>My c180 is now happily booting (current CVS kernel), however whenever I
>try to ls some dirs (no all, this example is from /usr/bin) I get errors
>along these lines
>ls: memory exhausted
>init-2.04# ls ap*
>Swap cache: add 0, delete 0, find 0/0
>Free swap:            0kB

The 2.4.9 kernel really needs swap, or so I've read on the linux-kernel =
mailing list.
You should add some swap. 2* [size of main memory] is a safe amount.
It's considered a bug, but it needs swap even if there is free memory.....

Good luck,
Jurriaan





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From: Richard Allen <ra@hp.is>
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Subject: Re: Betr.: Re: [parisc-linux] Trace/breakpoint trap
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On Wed, Sep 26, 2001 at 08:05:23AM +0200, Jurriaan Kalkman wrote:

> I have exactly the same on my C200+, since 2.4.9-<who knows>, but it went
> away when I didn't compile the kernel for PA8x00, but for the default value
> of PA7100. That means it may be something in the kernel, or some gcc bug.
> In my case, a 'make mrproper' in the kernel source directory triggered it.
> 
> I have posted it to this list, some weeks ago (under much the same subject).
> 
> Perhaps recompiling your kernel also fixes it?

LOL! :)  

bofh:~# cd /usr/src/linux 
bofh:/usr/src/linux# make menuconfig
Trace/breakpoint trap

Mmm :)    The .config I used contains:

CONFIG_PARISC=y
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_GSC=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_WAX_EISA=y
CONFIG_SUPERIO=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_PCI_NAMES=y
CONFIG_CHASSIS_LCD_LED=y


Im going to try this.   I'll simply get rid of CONFIG_PA8X00 and CONFIG_PA20.

-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




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On Wed, Sep 26, 2001 at 08:05:23AM +0200, Jurriaan Kalkman wrote:

> Perhaps recompiling your kernel also fixes it?

Damn...    I edited .config by hand, but Im still in a damn mess.

bofh:/usr/src/linux# make clean
Trace/breakpoint trap
bofh:/usr/src/linux# make oldconfig
Trace/breakpoint trap
bofh:/usr/src/linux# make dep
Trace/breakpoint trap


bofh:/usr/src/linux# cat /etc/palo.conf
# obsolete with palo-0.94 # --bootloader=/boot/iplboot
--commandline=2/vmlinux-2.4.9 root=/dev/sda4 HOME=/
--recoverykernel=/boot/vmlinux-2.4.0
--init-partitioned=/dev/sda

bofh:/usr/src/linux# ls -l /boot
total 7083
-rw-r--r--    1 root     root       593072 Sep 21 15:04 System.map-2.4.0
-rw-r--r--    1 root     disk       561861 Sep 21 21:12 System.map-2.4.9
-rw-r--r--    1 root     root         3949 Sep 21 15:04 config-2.4.0
drwxr-xr-x    2 root     root        12288 Sep 21 15:02 lost+found
-rw-r--r--    1 root     root      2853588 Sep 21 15:04 vmlinux-2.4.0
-rwxr-xr-x    1 root     disk      3191078 Sep 21 21:12 vmlinux-2.4.9


I still have the old kernel in there. How do I get palo to boot it ?


-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: [parisc-linux] The 720/50 saga continues...
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A long time ago, in a galaxy far, far away...

I booted my 720/50 from a lifimage with a nfsroot... and it worked, or
something. :-)

I modified the woody debootstrap script a bit to create a new nfsroot
(basically I ripped out the running of any binaries in the chroot), and
ran in on my i386. That worked pretty well.

Next up, I added an init=/bin/sh to the palo kernel command line
parameters, and rbootd'd the make palo lifimage. Whooo, prompt! So
first, mount proc, next remount the nfsroot rw, and then run
/sbin/ldconfig. Looking good...

Next rather annoying problem: ls reports "Invalid instruction" whenever
you try to run it. cat works, mount works... I haven't had much time to
test anything else.

I also attempted a dpkg-reconfigure --all, but it seems to be missing
Term::ReadLine. I'll be able to work some more on Friday. Hopefully dpkg
will do the trick, but if not, dpkg-cross might...?

Any ideas on the ls problem?

Regards,

Albert

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From: Jochen Friedrich <jochen@scram.de>
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Subject: Re: [parisc-linux] The 720/50 saga continues...
Date: Wed, 26 Sep 2001 15:27:22 +0200 (CEST)
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Hi Albert,

> Next rather annoying problem: ls reports "Invalid instruction" whenever
> you try to run it. cat works, mount works... I haven't had much time to
> test anything else.

So, ls triggers a real alignment problem which is now, due to the
fallthrouth to case 26, handled by the paging code...

As a temporary solution, i just copies the busybox from the installation
disk (which does not suffer from the same problem) and linked it to ls,
tar and sleep (being the userspace tools that trapped for me) which
allowed me to get a mostly working system up and running...

Now going to fix the real problem, on how to decide in the case 18 handler
if the trap is caused by a page fault or an alignment fault.

Cheers,
Jochen





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Hello,

On Wed, 26 Sep 2001, Jochen Friedrich wrote:

> Now going to fix the real problem, on how to decide in the case 18 handler
> if the trap is caused by a page fault or an alignment fault.

I presume this involves some PA-RISC assembly, and other kernel tricks.
Is there anything "normal users" can to help with this process?

Regards,

Albert

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Xref: news.gmane.org gmane.linux.ports.parisc:12308

> So, ls triggers a real alignment problem which is now, due to the
> fallthrouth to case 26, handled by the paging code...
> 
> As a temporary solution, i just copies the busybox from the installation
> disk (which does not suffer from the same problem) and linked it to ls,
> tar and sleep (being the userspace tools that trapped for me) which
> allowed me to get a mostly working system up and running...
> 
> Now going to fix the real problem, on how to decide in the case 18 handler
> if the trap is caused by a page fault or an alignment fault.
> 
> Cheers,
> Jochen

I am probably very naive :-), but shouldn't it be possible to figure out,
whether or not this is an unaligned access trap by just looking at the 
offending instruction and the address it is referencing? If, for example, 
it's a word load/store instruction and the address is not word-aligned,
then we call handle_unaligned, otherwise - do_page_fault. The only (hopefully)
problem arises if the load/store instruction generates BOTH page fault and
unaligned access traps. I have no idea, what happens then, but probably
one has to call do_page_fault first. If it's a not-so-often happening situation,
we could get away just by reusing some of the existing code.

Best regards,

Jurij.







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Subject: Re: [parisc-linux] The 720/50 saga continues...
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Hi Jurij,

> I am probably very naive :-), but shouldn't it be possible to figure out,
> whether or not this is an unaligned access trap by just looking at the
> offending instruction and the address it is referencing?

Maybe i'm naive, but wouldn't it be easier to check if the page being
addressed is in memory and if yes assume an assignment fault and if no
assume a pgae fault? IMHO, this would even fix the problem of having a
non-aligned access to a non-mapped address as the trap would first load
the address into memory than repeat the access, cause a second trap which
will be interpreted as a alignment trap the second time.

Cheers,
Jochen





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Subject: Re: [parisc-linux] How to merge Kernel 2.4.9 for hppa and newkernel 
 2.4.10
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Jurriaan,

Jurriaan Kalkman wrote:
> 
> >Hi all,
> >
> >I just learn that new release 2.4.10 of GNU/linux kernel was released.
> >I am curious to know how to merge last kernel 2.4.9-paxx and the new
> >2.4.10?
> >Is somebody can explain me or where to find relevant info?
> >
> 
> - get a plain 2.4.9 source tree
> - make a diff between 2.4.9-paxx and 2.4.9
> - download the 2.4.9-2.4.10 diff
> - apply to the 2.4.9 sourcetree and create a 2.4.10 sourcetree
> - apply 2.4.9-paxx diff to 2.4.10
> 
> which should all be straight-forward, but then
> - solve all the .rej files that are created, and debug the new kernel

Actually I was not so far from the solution; I start this method
(basicaly on vger cvs 2.4.10-prexx) and I just miss the last two steps.
Thanks a lot.

> 
> which is something I wouldn't want to do :-)
> 
> If you read the linux-kernel mailing list, you'll see that some people claim
> 2.4.10 is the best thing since sliced bread, but the first serious VM problems
> have been sighted already, so upgrading right away is risky.
> 
> Eventually, it'll be in the CVS at puffin.external.hp.com. Until then, the best
> thing to do is wait, unless you have the capabilities to debug the last step.
> If so, I think there are other things to get your teeth in - just ask here.

Ok, I am far to have enough kernel knowledge (just a bit c) to begin
this job alone. Also I will follow your advise and wait it puffin CVS.

> 
> Good luck,
> Jurriaan

Anyway It could also be helpfull for any other project.

Thanks again,
	Joel




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Subject: Re: Betr.: [parisc-linux] HP C180
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Xref: news.gmane.org gmane.linux.ports.parisc:12311

I Run into the exact same problem on a mounted ext2fs with 2xram as swap.
init-2.04# find . -name palo -print                                         
Out of Memory: Killed process 45 (find).                                    
Out of Memory: Killed process 45 (find).                                    
Out of Memory: Killed process 45 (find).
Out of Memory: Killed process 45 (find).                                    
Out of Memory: Killed process 45 (find).                                    
Out of Memory: Killed process 45 (find).
SysRq: Emergency Sync                                                       
Syncing device 08:03 ... OK                                                 
Syncing device 08:11 ... OK
Syncing device 08:12 ... OK
Syncing device 08:04 ... OK
Done.
SysRq: Show Regs

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 102d6a28 1026bd0c 0000000c                                
r4-7     105f46e4 105f4794 00000008 00000001                                
r8-11    ffffffff 00000010 105f46db efa0b925                                
r12-15   102d6a28 00000000 00000000 00000000                                
r16-19   105f4258 00063800 10334000 1026d912                                
r20-23   00000000 1026d912 0000000e 00000000
r24-27   1026d911 1029275d 105f48f8 10294010
r28-31   105f46e4 00000000 105f4880 1026b648
sr0-3    00000000 00000000 00000000 0000007c
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1026b724 1026b728
 IIR: 0ea01014    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 105f4000 CR31: 10338000
 ORIG_R28: 105f49c0                                                         
Done.
SysRq: Emergency Remount R/O
Remounting device 08:03 ... OK
Remounting device 08:11 ... OK
Remounting device 08:12 ... OK
Remounting device 08:04 ... OK
Done.
SysRq: Show Memory
Mem-info:
Free pages:      115496kB (     0kB HighMem)
( Active: 63, inactive_dirty: 137, inactive_clean: 0, free: 28874 (255 510
765) )
0*4kB 1*8kB 0*16kB 1*32kB 54*64kB 57*128kB 35*256kB 25*512kB 11*1024kB
35*2048kB = 115496kB)
= 0kB)
= 0kB)
Swap cache: add 92308, delete 92271, find 75/305
Free swap:       248700kB
32768 pages of RAM
1223 reserved pages
13 pages shared
37 pages swap cached
Buffer memory:      176kB
SysRq: Resetting

Any suggestions?
	Thanks
		Nick
On Wed, 26 Sep 2001, Jurriaan Kalkman wrote:
> The 2.4.9 kernel really needs swap, or so I've read on the linux-kernel mailing list.
> You should add some swap. 2* [size of main memory] is a safe amount.
> It's considered a bug, but it needs swap even if there is free memory.....
> 
> Good luck,
> Jurriaan
> 





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Subject: Re: [parisc-linux] First Draft of the help for the kernel options
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To: Thomas Marteau <marteaut@esiee.fr>
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Thomas Marteau wrote:
> Hi all,
> 
> 	As you know, PA/Linux source needs some help to guide their users.
> That's why I tried to complete the documentation for the kernel.

Excellent - I had forgotten about this already again.

> GSC/Gecko bus support
> CONFIG_GSC
>   This option gives to the kernel the capability to manage GSC buses 
>   of HP computers.

It's really more than that. Or at least it was.
All code in drivers/gsc is enabled with this flag.
It's worth noting that systems with GSC slots, LASI, EISA or
Dino (GSCtoPCI) bridge need this defined.

> This option is compulsory if you want it working.

All MMIO access once required CONFIG_GSC.
IIRC, someone fixed this dependency (willy maybe?).
A real test is if A500 and/or C3000 can build/run w/o CONFIG_GSC.

...
> GSCtoPCI/DINO PCI support
> CONFIG_GSC_DINO
>   By selecting this item, you add the use of your PCI extension slots.

I would say:
Add PCI support for Dino PCI Host Bus bridge.
PCI devices are sometimes embedded in GSC add-on cards (aka "card-mode Dino").

>   In order to be useful, you need a quite recent HP computer like those
>   based on PA7300LC or PA8X00.

"recent" means "not the oldest and not the newest".
I think mentioning some examples would be helpful (eg B132L, C200).

> HP Lasi SCSI support
> CONFIG_SCSI_LASI
>   If you have an old HP system like a 712, you should keep this on.
>   This will enable the 
>   For quite recent computers, you may be able to turn this off. 

If this can be a module, then we should mention that.
Again, some example systems with LASI/ASP built-in would be good.
(712/715/720/735/B132L/et al).

> Lasi ethernet
> CONFIG_LASI_82596
>   This option adds the driver for one of most used network cards.

It's not a seperate card. It's integrated in the LASI chip.
The question really is if apricot signals are exported out the
back of the machine. Off hand, I suspect only B180 (systems with
100BT instead of 10BT) falls into this category.
Otherwise all systems with LASI chip use this.

...
> PA Harmony audio driver
> CONFIG_SOUND_HARMONY
>   This option enables the audio part of the LASI controller. Since it is 
>   standard to all the boxes, this option should be set for any 
>   workstation.

Not true. Newer workstations with suckyio use AD1889 (IIRC).


thanks,
grant




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Subject: Re: [parisc-linux] How to merge Kernel 2.4.9 for hppa and new kernel 2.4.10
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Quoth Jurriaan Kalkman:
> If you read the linux-kernel mailing list, you'll see that some people
> claim 2.4.10 is the best thing since sliced bread, but the first
> serious VM problems have been sighted already, so upgrading right away
> is risky.

Getting a bit off-topic - but apart from keeping a careful eye on the
linux-kernel list, does there exist any reasonable means of finding out
stuff like this?  Mainly known flaws in a given kernel release ... such
as 'serious VM problems in 2.4.10', 'foobar was badly broken in 2.4.6'
and so on.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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From: Jochen Friedrich <jochen@scram.de>
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Subject: [parisc-linux] 720 - some progress
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Hi,

i created this patch for the cause 18 on the 720. Without the patch and 
fallthrough to case 26, the following program will just hang:

#include <stdio.h>

int main()
{
  int i,j,k;
  char *p;

  i=0;
  j=1;
  k=0;

  p = (char *) &j;
  p++;
  i = *(int *) p;

  printf("%d\n",i);
}

With the patch, the output is:

sh-2.05# ./unaligned
unaligned(20): unaligned access to 0xfaf002cd at ip=0x0001050f
256
                  
So the patch appears to work correctly at least for this case...

However, the user space tools ls, tar, sleep still crash for me.
This is the dmesg output:

!!die_if_kernel: ls.x(22): Privileged register - shouldn't happen! 11
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 4019e57c 4008648f 401a057c
r4-7     401a057c 40199140 401a057c faf00318
r8-11    00000000 0001bb24 0002df58 faf000e8
r12-15   0002df58 0002df58 000c41b0 0002df58
r16-19   00000000 00000000 10350000 401cf930
r20-23   40029122 401b33f8 4019b0a0 4019fd7c
r24-27   00000000 faf00318 40199140 0002df58
r28-31   4017722c 0002f048 faf00440 40083393
sr0-3    0000002c 0000002c 00000000 0000002c
sr4-7    0000002c 0000002c 0000002c 0000002c

IASQ: 0000002c 0000002c IAOQ: 401b340f 401b3413
 IIR: 036008a4    ISR: 0000002c  IOR: 0002df58
 CPU:        0   CR30: 11b68000 CR31: 10358000
 ORIG_R28: 0002f000

Does anyone know what the cause 11 means?

Cheers,
Jochen
--- linux.orig/arch/parisc/kernel/traps.c	Wed Sep 19 12:02:30 2001
+++ linux/arch/parisc/kernel/traps.c	Thu Sep 27 00:02:23 2001
@@ -46,8 +46,12 @@
 #define PRINT_USER_FAULTS /* (turn this on if you want user faults to be */
 			 /*  dumped to the console via printk)          */
 
+#define DEBUG_CASE18
+
 void handle_unaligned(struct pt_regs *regs);
 
+unsigned long parisc_acctyp(unsigned long code, unsigned int inst);
+
 static int printbinary(char *buf, unsigned long x, int nbits)
 {
 	unsigned long mask = 1UL << (nbits - 1);
@@ -274,6 +278,11 @@
 	unsigned long fault_address = 0;
 	unsigned long fault_space = 0;
 	struct siginfo si;
+	unsigned long acc_type;
+	pte_t * pte;
+	pgd_t * pgd;
+	pmd_t * pmd;
+
 #ifdef CONFIG_KWDB
 	struct save_state ssp;
 #endif /* CONFIG_KWDB */   
@@ -322,12 +331,15 @@
 		fault_address = regs->ior;
 		parisc_terminate("Non access data tlb fault!",regs,code,fault_address);
 
+	pagefault:
+#ifdef DEBUG_CASE18
+		printk("to pagefault\n");
+#endif
 	case 15:
 	case 26:
 		fault_address = regs->ior;
 		fault_space   = regs->isr;
 		break;
-
 	case 19:
 		regs->gr[0] |= PSW_X; /* So we can single-step over the trap */
 		/* fall thru */
@@ -416,6 +428,57 @@
 		force_sig_info(SIGSEGV, &si, current);
 		return;
 
+	case 18:
+#ifdef DEBUG_CASE18
+		printk(KERN_DEBUG "got case18 -");
+#endif
+		fault_address = regs->iaoq[0];
+		fault_space = regs->iasq[0];
+
+		if (in_interrupt() || !(current->mm))
+			goto pagefault; /* shouldn't happen */
+		/* FIXME: do propper locking here */
+
+		/* page directory */
+		pgd = pgd_offset(current->mm, fault_address);
+		if (pgd_none(*pgd) || pgd_bad(*pgd))
+			goto pagefault; /* expandable stack etc */
+
+		/* middle page directory */
+		pmd = pmd_offset(pgd, fault_address);
+		if (pmd_none(*pmd) || pmd_bad(*pmd))
+		        goto pagefault; /* expandable stack etc */
+
+		/* page table entry */
+		pte = pte_offset(pmd, fault_address);
+		if (pte_none(*pte))
+		        goto pagefault; /* expandable stack etc */
+
+		if (!pte_present(*pte)) /* is this test sufficient? */
+		        goto pagefault; /* page not loaded */
+
+		acc_type = parisc_acctyp(code,regs->iir);
+
+		if ((acc_type & VM_WRITE) && (!(pte_write(*pte))))
+		        goto pagefault; /* Write protected access */
+
+		if ((acc_type & VM_READ) && (!(pte_read(*pte))))
+			goto pagefault; /* Read protected access */
+
+		if ((acc_type & VM_EXEC) && (!(pte_read(*pte))))
+		        goto pagefault; /* Exec protected access */
+
+		if (!(regs->ior & 3)) {
+#ifdef DEBUG_CASE18
+			printk("spurious? -");
+#endif
+			goto pagefault;
+		}
+		/* fall through to case 28 */
+#ifdef DEBUG_CASE18
+		printk("to unaligned\n");
+		show_regs(regs);
+#endif
 	case 28:  /* Unaligned just causes SIGBUS for now */
 		handle_unaligned(regs);
 #if 0
diff -u -r linux.orig/arch/parisc/mm/fault.c linux/arch/parisc/mm/fault.c
--- linux.orig/arch/parisc/mm/fault.c	Wed Aug 29 12:02:07 2001
+++ linux/arch/parisc/mm/fault.c	Wed Sep 26 22:54:46 2001
@@ -49,7 +49,7 @@
  *   VM_WRITE if write operation
  *   VM_EXEC  if execute operation
  */
-static unsigned long
+unsigned long
 parisc_acctyp(unsigned long code, unsigned int inst)
 {
 	if (code == 6 || code == 16)





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Hello Jochen and pa-risc,

Would it help if one recompiled ls and the other "problem" tools with=20
(hopefully) a simple #define DEBUG 1, so that we can see what part of
the program makes the kernel go wild?

Regards,

Albert

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Xref: news.gmane.org gmane.linux.ports.parisc:12316

I was getting trace/breakpoint traps from my new 2.4.9-pa24 kernel
and it was suggested that I recompile the kernel for PA7100 (not 8000
as I had done before.)    I was unable to compile the kernel again
while running 2.4.9 so I had to boot the 2.4.0 kernel that was included
on the 0.92 CD.   When that kernel was running I was able to recompile
the 2.4.9 kernel again and it's now working much better.  Im now able
to compile things with out any (unusual) errors.

However, I again had a rather massive filesystem corruption on my root
filesystem after I had been running 2.4.0.  I had to manually run fsck
and answer "y" to 50 - 60 "fix?" questions.


-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
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Subject: Re: Betr.: Re: [parisc-linux] Trace/breakpoint trap
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>bofh:/usr/src/linux# ls -l /boot
>total 7083
>-rw-r--r--    1 root     root       593072 Sep 21 15:04 System.map-2.4.0
>-rw-r--r--    1 root     disk       561861 Sep 21 21:12 System.map-2.4.9
>-rw-r--r--    1 root     root         3949 Sep 21 15:04 config-2.4.0
>drwxr-xr-x    2 root     root        12288 Sep 21 15:02 lost+found
>-rw-r--r--    1 root     root      2853588 Sep 21 15:04 vmlinux-2.4.0
>-rwxr-xr-x    1 root     disk      3191078 Sep 21 21:12 vmlinux-2.4.9
>
>
>I still have the old kernel in there. How do I get palo to boot it ?
>
The easiest way to do it once is to interrupt the booting right at the =
start,
interrupting the automatic boot, then type

BOOT
and when asked if you want to interact with the IPL, answer Y.

Then edit the parameter where your kernel-name is. I have to use ^H to =
delete characters.

Good luck,
Jurriaan





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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
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Subject: Betr.: Re: [parisc-linux] How to merge Kernel 2.4.9 for hppa
	and new kernel 2.4.10
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>Getting a bit off-topic - but apart from keeping a careful eye on the
>linux-kernel list, does there exist any reasonable means of finding out
>stuff like this?  Mainly known flaws in a given kernel release ... such
>as 'serious VM problems in 2.4.10', 'foobar was badly broken in 2.4.6'
>and so on.
>
The linux weekly news (www.lwn.net) always has a short item about 'kernel =
mailing-
list threads', which mentions the top threads from the past week. I'm not =
sure if that
helps. I just follow the list :-)

Good luck,
Jurriaan





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From: Jurij Smakov <jurij@lokmail.net>
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Subject: Re: [parisc-linux] 720 - some progress
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[skipped]
> !!die_if_kernel: ls.x(22): Privileged register - shouldn't happen! 11
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111
> r0-3     00000000 4019e57c 4008648f 401a057c
> r4-7     401a057c 40199140 401a057c faf00318
> r8-11    00000000 0001bb24 0002df58 faf000e8
> r12-15   0002df58 0002df58 000c41b0 0002df58
> r16-19   00000000 00000000 10350000 401cf930
> r20-23   40029122 401b33f8 4019b0a0 4019fd7c
> r24-27   00000000 faf00318 40199140 0002df58
> r28-31   4017722c 0002f048 faf00440 40083393
> sr0-3    0000002c 0000002c 00000000 0000002c
> sr4-7    0000002c 0000002c 0000002c 0000002c
> 
> IASQ: 0000002c 0000002c IAOQ: 401b340f 401b3413
>  IIR: 036008a4    ISR: 0000002c  IOR: 0002df58
>  CPU:        0   CR30: 11b68000 CR31: 10358000
>  ORIG_R28: 0002f000
> 
> Does anyone know what the cause 11 means?
[skipped]

Hi!

>From the docs:

Privileged register trap (11)
An attempt is being made to write to a privileged space register
or access a privileged control register without being at the most
privileged level (priv=0).
May be caused by MOVE TO SPACE REGISTER, MOVE TO CONTROL REGISTER,
or MOVE FROM CONTROL REGISTER instructions.

Do I understand correctly, that you started seeng trap 11 only
after applying your patch?

Best regards,

Jurij







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From: Jurij Smakov <jurij@lokmail.net>
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Subject: Re: [parisc-linux] 720 - some progress
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And another (very weird) thing... I've manually decoded the instruction
(036008A4), which produces the trap 11 (hopefully, correctly :-). 
It turns out to be an MFCTL instruction to load contents of control 
register 27 into a general register 4. According to the docs for this
command ("PA-RISC 1.1 Architecture and Instruction Set Reference Manual",
Third edition, page 5-151):

"CR11, CR26 and CR 27 may be read at ANY privilege level."

So, unless I am missing something, this instruction SHOULD NOT produce
trap 11. Is it some hardware feature of 720 or my manual disassembling
skills must be improved? ;-).

Best regards,

Jurij







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From: Jochen Friedrich <jochen@scram.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 720 - some progress
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Hi Jurij,

> Do I understand correctly, that you started seeng trap 11 only
> after applying your patch?

Nope, that was the same trap i got with the case 26 fallthrough, as well.
Apparently, ls etc doesn't have a problem with unaligned access, but it
must be something different. The PA7100LC documentation documents some
changes to the read access privileges to CR26 and CR27. Might that be the
cause for the trap 11?

The patch helps for the test case i provided, which really is an unaligned
access. The unpatched kernel doesn't trap at all with this program, but
the program will just hang.

Cheers,
Jochen





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From: Jochen Friedrich <jochen@scram.de>
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Subject: Re: [parisc-linux] 720 - some progress
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Hi Jurij,

> And another (very weird) thing... I've manually decoded the instruction
> (036008A4), which produces the trap 11 (hopefully, correctly :-).
> It turns out to be an MFCTL instruction to load contents of control
> register 27 into a general register 4.

The CPU in the 720 will treat this as a priviledged instruction. The
changes "signal 18 -> signal 26, signal 27, signal 28" and "allow read
access to CR26 and CR27 for non-priviledged access" are documented as new
for the PA7100LC processor, so they are not available in the 720.

Another thing to emulate on the old 720/50 platform...

Cheers,
Jochen





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Subject: [parisc-linux] More strange problems
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bofh:/u0/RPMS# rpm --initdb
bofh:/u0/RPMS# rpm -ivh zlib-1.1.3-24.parisc.rpm zlib-devel-1.1.3-24.parisc.rpm
Segmentation fault
bofh:/u0/RPMS# dmesg | tail -20

do_page_fault() pid=2132 command='rpm' type=15 address=0x00000024

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 00000008 0007c7b7 bff00938
r4-7     001b8000 00000009 00207510 0020758c
r8-11    00002001 00205fe0 bff007f4 001ffa10
r12-15   001de270 00000000 bff004c4 00000102
r16-19   00000000 001f65e0 00205fe0 001b8000
r20-23   01010101 00205fdc 80808080 00000006
r24-27   bff00938 00000009 00000000 001dca70
r28-31   001e3238 00000000 bff009f0 00059457
sr0-3    00000014 00000014 00000000 00000014
sr4-7    00000014 00000014 00000014 00000014

IASQ: 00000014 00000014 IAOQ: 0007c7c3 0007c7c7
 IIR: 48340038    ISR: 00000014  IOR: 00000024
 CPU:        0   CR30: 29164000 CR31: 10350000
 ORIG_R28: 00206000




Another question.

While creating a diff from the glibc 2.2.3 sources in your CVS against
prestine glibc 2.2.3 sources, I notice that there is a subfolder in
there called linuxthreads.   Are threads handled differently on
parisc than on other platforms ?   Or is this folder just something
left over from older times ?


-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




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From: Jurij Smakov <jurij@lokmail.net>
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Subject: Re: [parisc-linux] 720 - some progress
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> The CPU in the 720 will treat this as a priviledged instruction. The
> changes "signal 18 -> signal 26, signal 27, signal 28" and "allow read
> access to CR26 and CR27 for non-priviledged access" are documented as new
> for the PA7100LC processor, so they are not available in the 720.
> 
> Another thing to emulate on the old 720/50 platform...
> 
> Cheers,
> Jochen

It does not seem so complicated... Even with my rudimentary C programming
skills :-). I'll try to put something together. Is there a way to check
if we are running on a 720?

Jurij.







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Subject: Re: [parisc-linux] More strange problems
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On Thu, Sep 27, 2001 at 11:34:53AM +0000, Richard Allen wrote:
> While creating a diff from the glibc 2.2.3 sources in your CVS against
> prestine glibc 2.2.3 sources, I notice that there is a subfolder in
> there called linuxthreads.   Are threads handled differently on
> parisc than on other platforms ?   Or is this folder just something
> left over from older times ?

linuxthreads is distributed as an add-on package for glibc; see the
glibc documentation.

-- 
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Subject: Re: [parisc-linux] 720 - some progress
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On Thu, Sep 27, 2001 at 08:23:09AM -0400, Jurij Smakov wrote:
> It does not seem so complicated... Even with my rudimentary C programming
> skills :-). I'll try to put something together. Is there a way to check
> if we are running on a 720?

There is -- but don't bother.  Check to see if the register being read is
cr26 or cr27 and perform the access if it is.  Obviously, reads of other
control registers should not be emulated.

-- 
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From: Hamish Moffatt <hamish@cloud.net.au>
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Subject: [parisc-linux] FW SCSI on the D350
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Hi,

I'm trying to install the 0.9 release on a D350 server. The kernel
recognises the standard SCSI, using the lasi7xxx driver, and finds
the tape drive and the CD-ROM on that host. However, it doesn't
find the Bluefish fast/wide SCSI host, so it doesn't find the
four internal hard disks, which makes installation a little tough.

The boot-up firmware recognises all of the disks OK, but the Bluefish
is just not included in the device list shown at startup/dmesg.

I'll try the 0.9.2 release tomorrow. Any other things I can do
which might help?


thanks,
Hamish
-- 
Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>




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On Thu, Sep 27, 2001 at 02:29:43PM +0100, Matthew Wilcox wrote:
> On Thu, Sep 27, 2001 at 11:34:53AM +0000, Richard Allen wrote:
> > While creating a diff from the glibc 2.2.3 sources in your CVS against
> > prestine glibc 2.2.3 sources, I notice that there is a subfolder in
> > there called linuxthreads.   Are threads handled differently on
> > parisc than on other platforms ?   Or is this folder just something
> > left over from older times ?
> 
> linuxthreads is distributed as an add-on package for glibc; see the
> glibc documentation.

Ah :)   Thanks :)


Is there any way for a non kernel guru like myself to get any info out
of those errors in dmesg ?

do_page_fault() pid=2132 command='rpm' type=15 address=0x00000024

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 00000008 0007c7b7 bff00938
r4-7     001b8000 00000009 00207510 0020758c
r8-11    00002001 00205fe0 bff007f4 001ffa10
r12-15   001de270 00000000 bff004c4 00000102
r16-19   00000000 001f65e0 00205fe0 001b8000
r20-23   01010101 00205fdc 80808080 00000006
r24-27   bff00938 00000009 00000000 001dca70
r28-31   001e3238 00000000 bff009f0 00059457
sr0-3    00000014 00000014 00000000 00000014
sr4-7    00000014 00000014 00000014 00000014

IASQ: 00000014 00000014 IAOQ: 0007c7c3 0007c7c7
 IIR: 48340038    ISR: 00000014  IOR: 00000024
 CPU:        0   CR30: 29164000 CR31: 10350000
 ORIG_R28: 00206000



For example, is this a problem with the command Im running (RPM) or is
it a problem in the kernel ?



-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




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Subject: Re: [parisc-linux] 720 - some progress
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Hi!

I hope I've got it right. It only emulates MFCTL and only when the
source control register is 27. It turns out, that pt_regs does not
have a member for cr26 and adding one does not look like an easy
task. 

Jurij.

--- linux-2.4.9-pa24/arch/parisc/kernel/traps.c Wed Sep 19 12:02:30 2001
+++ linux/arch/parisc/kernel/traps.c    Thu Sep 27 16:16:54 2001
@@ -273,6 +273,7 @@
 {
        unsigned long fault_address = 0;
        unsigned long fault_space = 0;
+       int fromcr,togr;
        struct siginfo si;
 #ifdef CONFIG_KWDB
        struct save_state ssp;
@@ -363,6 +364,17 @@
                si.si_code = ILL_PRVOPC;
                goto give_sigill;
        case 11:
+               if(!(regs->iir & 0xfc000000) && (((regs->iir & 0x1fe0)>>5) == 0x45)) {
+                 /* This is MFCTL instruction */
+                 fromcr = (regs->iir & 0x03e00000)>>21;
+                 togr = (regs->iir & 0x1f);
+                 /* Emulate the instruction if the read is from cr27 */
+                 if(fromcr == 27) {
+                   regs->gr[togr] = regs->cr27;
+                   return;
+                 }
+               }
+               /* Something else is wrong */
                die_if_kernel("Privileged register - shouldn't happen!", regs, code);
                si.si_code = ILL_PRVREG;
        give_sigill:







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On Thu, Sep 27, 2001 at 02:35:56PM +0000, Richard Allen wrote:
> Is there any way for a non kernel guru like myself to get any info out
> of those errors in dmesg ?

Sure..

> do_page_fault() pid=2132 command='rpm' type=15 address=0x00000024

`address=0x00000024' -- it's a NULL pointer dereference.

>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111
> r0-3     00000000 00000008 0007c7b7 bff00938
> r4-7     001b8000 00000009 00207510 0020758c
> r8-11    00002001 00205fe0 bff007f4 001ffa10
> r12-15   001de270 00000000 bff004c4 00000102
> r16-19   00000000 001f65e0 00205fe0 001b8000
> r20-23   01010101 00205fdc 80808080 00000006
> r24-27   bff00938 00000009 00000000 001dca70
> r28-31   001e3238 00000000 bff009f0 00059457
> sr0-3    00000014 00000014 00000000 00000014
> sr4-7    00000014 00000014 00000014 00000014
> 
> IASQ: 00000014 00000014 IAOQ: 0007c7c3 0007c7c7

`IASQ: 00000014' -- 0 means kernel, anything else is a user process.
`IAOQ: 0007c7c3' -- bottom 2 bits set, so we're in user mode too (good!).

>  IIR: 48340038    ISR: 00000014  IOR: 00000024
>  CPU:        0   CR30: 29164000 CR31: 10350000
>  ORIG_R28: 00206000

The truly dedicated will decode IIR to see what instruction it was,
cross-check which register in the dump was wrong then try to debug
the program.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:19:23 2018
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Subject: [parisc-linux] what i did on my holidays
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i've been hacking on various random things; i don't have sufficient time
to commit everything properly (so i'll do it when i get back on monday),
but the curious can look at `all.diff2' in my homedir on pehc.  here's
a rough contents of the diff (in no particular order):

 * changes in support of card-mode dino
 * random spelling mstakes, documentation updates, etc
 * misc cleanups
 * convert ccio-rm-dma to the parisc_device interface.  it was annoying me.
 * change a lot of `void *' to `unsigned long' and remove casts.
 * rationalise function names & user messages

And much much more!

I haven't even tried compiling it since fixing up the cvs merge conflicts
with all the good work done in the last week or so.  Have fun...

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] 720 - some progress
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Hello,

A quick glance at arch/parisc/hardware/inventory.c reveiled the
following:

long status;
unsigned int bus_id;
=2E..
status =3D pdc_model_info(&model);
bus_id =3D (model.hversion >> (4 + 7)) & 0x1f;

switch (bus_id) {
case 0x4:               /* 720, 730, 750, 735, 755 */

I don't know if all these models have the same CPU. I'm guessing not.

I also see a parisc_get_cpu_type(...) in arch/parisc/kernnel/hardware.c.
This is probably what you want.

Regards,

Albert

On Thu, 27 Sep 2001, Jurij Smakov wrote:

> > The CPU in the 720 will treat this as a priviledged instruction. The
> > changes "signal 18 -> signal 26, signal 27, signal 28" and "allow read
> > access to CR26 and CR27 for non-priviledged access" are documented as n=
ew
> > for the PA7100LC processor, so they are not available in the 720.
> >=20
> > Another thing to emulate on the old 720/50 platform...
> >=20
> > Cheers,
> > Jochen
>=20
> It does not seem so complicated... Even with my rudimentary C programming
> skills :-). I'll try to put something together. Is there a way to check
> if we are running on a 720?
>=20
> Jurij.
>=20
>=20
>=20
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

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Hello,

When in doubt, boot a brand-new kernel. :-)

I suggest downloading the latest CVS snapshot from
puffin.external.hp.com, then cross-compile it according to the
instructions on http://parisc-linux.org/. Basically just add the
xc-latest.tar.gz (the cross-compiler) binaries to your path, then make
mrproper; make oldconfig (possibly making some changes here...
someone?), make dep, make clean, make palo.

Now, grab the latest Debian root.bin, and do the following:

 palo -f /dev/null -k vmlinux -r root.bin -s lifimage \
        -c "0/linux HOME=3D/ root=3D/dev/ram initrd=3D0/ramdisk"

(and perhaps -b iplbool)

where vmlinux is the new kernel you compiled, root.bin is the latest
Debian HPPA root disk) and lifimage is the lifimage make palo made.

Now merrily netboot this lifimage and try installing from the CD (or
network perhaps).

Assuming it works, you'll need to overwrite the kernel the installer=20
drops in /boot with your new vmlinux, or rerun palo without the
root.bin and initrd parts, and with root=3D/dev/sdaN and netboot that=20
kernel.

Did I miss anything?

Regards,

Albert

P.S. Thanks to Richard Hirst who provided me with much of this
information on a prior occasion.

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From: Jurij Smakov <jurij@lokmail.net>
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Subject: Re: [parisc-linux] 720 - some progress
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> A quick glance at arch/parisc/hardware/inventory.c reveiled the
> following:
> 
> long status;
> unsigned int bus_id;
> ...
> status = pdc_model_info(&model);
> bus_id = (model.hversion >> (4 + 7)) & 0x1f;
> 
> switch (bus_id) {
> case 0x4:               /* 720, 730, 750, 735, 755 */
> 
> I don't know if all these models have the same CPU. I'm guessing not.
> 
> I also see a parisc_get_cpu_type(...) in arch/parisc/kernnel/hardware.c.
> This is probably what you want.
> 
> Regards,
> 
> Albert

Hi Albert!

As Matthew pointed out, it is not neccessary to determine the CPU type.
"Normal" (newer) CPU's do not consider reading from cr26 and cr27 to
be privileged operations, so the condition, which is checked in the
patch will just never occur for them. Actually, did you try it? I'm
very interested in the results.

Cheers,

Jurij.







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˲߰ٱ 

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> > r0-3     00000000 00000008 0007c7b7 bff00938
> > ...
> >  IIR: 48340038    ISR: 00000014  IOR: 00000024
> >  CPU:        0   CR30: 29164000 CR31: 10350000
> >  ORIG_R28: 00206000
>
> The truly dedicated will decode IIR to see what instruction it was,
> cross-check which register in the dump was wrong then try to debug
> the program.

Decoding IIR is actually pretty easy if you have an HP-UX system with adb:

$ echo "0x48340038=i" | adb
                LDW             28(r1),r20

adb prints the offset in decimal, so this is 0x1c(0x8) = 0x24, which 
matches the IOR.  I wish I knew how to do the same with gdb.






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Hello,

I'll play with your patches in about 24 hours from now. Sadly, I am
attempting to get my degree during the week, so I'm not always near my
beloved 720. :-)

But I'll try them soon. And perhaps be truly dedicated and decode some
crashes like Matthew suggests. :-)

By the way, are the docs you are referring to the ones on the
parisc-linux.org site, or are they from another source? I'm interested
in starting to read up on my lil' CPU.

Regards,

Albert

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> 
> And much much more!
> 
> I haven't even tried compiling it since fixing up the cvs merge conflicts
> with all the good work done in the last week or so.  Have fun...
> 
> -- 

You da best! :)

I've been hacking glibc 2.2.4-1:

	- ./sysdeps/ia64/dl-fptr.c changes for try_lock
	- Put change back into dpatch
	
	- Combing through glibc trying to understand the various
	  changes that have been made (and how glibc works).

	- dpkg-buildpackage now makes it to the point of using a new
	  ld.so.1, which seg's... so I'm back to figuring out why.

I'm still not as far as you've gotten. I can't even get within arms
reach of running zic, though I'm getting closer.

Trying to document those g++ problems with #define _BSD_SOURCE that
Zimmerman has been trying to assign blame for ;)

I constantly mull over writing a new "building the toolchain" for
the website.

Then I listen to Tom Waits, and I just feel like drinking and pondering
if my 715/50 really loves me ;)

--


c.




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I Run into the exact same problem on a mounted ext2fs with 2xram as swap.
init-2.04# find . -name palo -print                                         
Out of Memory: Killed process 45 (find).                                    
..
Out of Memory: Killed process 45 (find).
SysRq: Emergency Sync                                                       
Syncing device 08:03 ... OK                                                 
Syncing device 08:11 ... OK
Syncing device 08:12 ... OK
Syncing device 08:04 ... OK
Done.
SysRq: Show Regs

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 102d6a28 1026bd0c 0000000c                                
r4-7     105f46e4 105f4794 00000008 00000001                                
r8-11    ffffffff 00000010 105f46db efa0b925                                
r12-15   102d6a28 00000000 00000000 00000000                                
r16-19   105f4258 00063800 10334000 1026d912                                
r20-23   00000000 1026d912 0000000e 00000000
r24-27   1026d911 1029275d 105f48f8 10294010
r28-31   105f46e4 00000000 105f4880 1026b648
sr0-3    00000000 00000000 00000000 0000007c
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1026b724 1026b728
 IIR: 0ea01014    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 105f4000 CR31: 10338000
 ORIG_R28: 105f49c0                                                         
Done.
SysRq: Emergency Remount R/O
Remounting device 08:03 ... OK
Remounting device 08:11 ... OK
Remounting device 08:12 ... OK
Remounting device 08:04 ... OK
Done.
SysRq: Show Memory
Mem-info:
Free pages:      115496kB (     0kB HighMem)
( Active: 63, inactive_dirty: 137, inactive_clean: 0, free: 28874 (255 510
765) )
0*4kB 1*8kB 0*16kB 1*32kB 54*64kB 57*128kB 35*256kB 25*512kB 11*1024kB
35*2048kB = 115496kB)
= 0kB)
= 0kB)
Swap cache: add 92308, delete 92271, find 75/305
Free swap:       248700kB
32768 pages of RAM
1223 reserved pages
13 pages shared
37 pages swap cached
Buffer memory:      176kB
SysRq: Resetting

Any suggestions?
	Thanks
		Nick
On Wed, 26 Sep 2001, Jurriaan Kalkman wrote:
> The 2.4.9 kernel really needs swap, or so I've read on the linux-kernel mailing list.
> You should add some swap. 2* [size of main memory] is a safe amount.
> It's considered a bug, but it needs swap even if there is free memory.....
> 
> Good luck,
> Jurriaan
> 






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Hamish Moffatt wrote:
> 
> Hi,
> 
> I'm trying to install the 0.9 release on a D350 server. The kernel
> recognises the standard SCSI, using the lasi7xxx driver, and finds
> the tape drive and the CD-ROM on that host. However, it doesn't
> find the Bluefish fast/wide SCSI host, so it doesn't find the
> four internal hard disks, which makes installation a little tough.

The D-class is very similar to Cxxx - ie it has U2 or Uturn in it.
parisc-linux currently only supports GSC devices below the first IOMMU.
Ryan Bradetich is working on "I/O tree" support to enable support
for multiple IOMMUs - then we should be able to walk additional
GSC busses and find more devices.

> The boot-up firmware recognises all of the disks OK, but the Bluefish
> is just not included in the device list shown at startup/dmesg.

Probably because GSC bus with your Bluefish (FWD SCSI) isn't being walked.
That's something Ryan wants to fix once IOtree support is at least
sort-of working.

> I'll try the 0.9.2 release tomorrow. Any other things I can do
> which might help?

Send Ryan cash. ;^)
(Just kidding...)

grant




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Subject: Re: [parisc-linux] FW SCSI on the D350
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On Thu, Sep 27, 2001 at 11:41:28PM -0600, Grant Grundler wrote:
> Hamish Moffatt wrote:
> > 
> > Hi,
> > 
> > I'm trying to install the 0.9 release on a D350 server. The kernel
> > recognises the standard SCSI, using the lasi7xxx driver, and finds
> > the tape drive and the CD-ROM on that host. However, it doesn't
> > find the Bluefish fast/wide SCSI host, so it doesn't find the
> > four internal hard disks, which makes installation a little tough.

You need a newer kernel, and you should be able to see the SCSI
card.  I'm not sure which -pa?? kernel, so just grab CVS head and
that should be sufficient.

> The D-class is very similar to Cxxx - ie it has U2 or Uturn in it.
> parisc-linux currently only supports GSC devices below the first IOMMU.
> Ryan Bradetich is working on "I/O tree" support to enable support
> for multiple IOMMUs - then we should be able to walk additional
> GSC busses and find more devices.

The code is in to detect the card under the "other" IOMMU, but if any
dma is performed on the "other" GSC bus, it will HPMC the machine.  As
Grant said, I have been working on the I/O tree to fix the problem, and
am getting close to having it working for SYSTEM_MAP firmware.

> > The boot-up firmware recognises all of the disks OK, but the Bluefish
> > is just not included in the device list shown at startup/dmesg.

LaMont Jones saw this same behavior on the J200.  Firmware reports the
Bluefish card for me on the C200.  In one of the Later kernel I committed
the support to walk the GSC busses uner ccio so LaMont could boot the
J200.  This should also work for you.

> Probably because GSC bus with your Bluefish (FWD SCSI) isn't being walked.
> That's something Ryan wants to fix once IOtree support is at least
> sort-of working.
> 
> > I'll try the 0.9.2 release tomorrow. Any other things I can do
> > which might help?

I do not think the 0.9.2 release is new enough, try the CVS head
kernel.

> Send Ryan cash. ;^)
> (Just kidding...)

:)

- Ryan




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From: Jochen Friedrich <jochen@scram.de>
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Subject: Re: [parisc-linux] 720 - some progress
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Hi Jurij,

using your patch, the programs ls etc don't trap anymore, but they just
hang.

> +               if(!(regs->iir & 0xfc000000) && (((regs->iir & 0x1fe0)>>5) == 0x45)) {
> +                 /* This is MFCTL instruction */
> +                 fromcr = (regs->iir & 0x03e00000)>>21;
> +                 togr = (regs->iir & 0x1f);
> +                 /* Emulate the instruction if the read is from cr27 */
> +                 if(fromcr == 27) {
> +                   regs->gr[togr] = regs->cr27;

I guess you need to advance the PC at this place. Something like:

		regs->iaoq[0] = regs->iaoq[1];
		regs->iaoq[1] = regs->iaoq[0] + 4;

> +                   return;
> +                 }
> +               }
> +               /* Something else is wrong */

If i add these instructions, ls no longer hangs but traps again with a
trap 15. Using show_regs(), it looks like there is always a 0 loaded to
the register. So my current question is:

where does regs->cr27 get written to the stack? Does the PA-RISC CPU does
this automatically on a start of a trap or does the code in entry.S need
to do this?

Cheers,
Jochen





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On Thu, Sep 27, 2001 at 10:42:25AM -0400, Jurij Smakov wrote:
> I hope I've got it right. It only emulates MFCTL and only when the
> source control register is 27. It turns out, that pt_regs does not
> have a member for cr26 and adding one does not look like an easy
> task. 

I think the right way to do this would be...

> @@ -363,6 +364,17 @@
>                 si.si_code = ILL_PRVOPC;
>                 goto give_sigill;
>         case 11:
> +               if(!(regs->iir & 0xfc000000) && (((regs->iir & 0x1fe0)>>5) == 0x45)) {
> +                 /* This is MFCTL instruction */
> +                 fromcr = (regs->iir & 0x03e00000)>>21;
> +                 togr = (regs->iir & 0x1f);
> +                 /* Emulate the instruction if the read is from cr27 */

		if (fromcr == 26 || fromcr == 27) {
			regs->gr[togr] = mfctl(fromcr);
			return;
		}

> +               }
> +               /* Something else is wrong */
>                 die_if_kernel("Privileged register - shouldn't happen!", regs, code);
>                 si.si_code = ILL_PRVREG;
>         give_sigill:

Can you give this a try?

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] 720 - some progress
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To: Jochen Friedrich <jochen@scram.de>
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On Fri, Sep 28, 2001 at 10:49:00AM +0200, Jochen Friedrich wrote:
> If i add these instructions, ls no longer hangs but traps again with a
> trap 15. Using show_regs(), it looks like there is always a 0 loaded to
> the register. So my current question is:
> 
> where does regs->cr27 get written to the stack? Does the PA-RISC CPU does
> this automatically on a start of a trap or does the code in entry.S need
> to do this?

cr27 is only written to when doing fork/clone/vfork, iirc.  use the mfctl()
macro in place of regs->cr27 as i suggested in my other email.

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] what i did on my holidays
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On Thu, Sep 27, 2001 at 08:44:51PM -0400, Carlos O'Donell Jr. wrote:
> 	- ./sysdeps/ia64/dl-fptr.c changes for try_lock
> 	- Put change back into dpatch

Excellent.

> 	- dpkg-buildpackage now makes it to the point of using a new
> 	  ld.so.1, which seg's... so I'm back to figuring out why.

Yes.  If you decode that long command, it's probably running zic -- that's
the first thing it attempts to build natively.

By the way, there's glibc 2.2.4-2 out now; I don't know what changes
BenC made to it.  In any case, I thought we'd decided the problem was
with a bogus C compiler (since 2.2.3-9 now fails to build).  Any update
on getting a compiler which fixes this?

-- 
Revolutions do not require corporate support.




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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: [parisc-linux] puffin, parisc-linux.org slow/dead?
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Hello,

I'm trying to do a CVS update of my kernel source, but puffin is
decidedly non-responsive (or is the CVS repository perhaps mirrored
somewhere else?).

=46rom my own machine:

PING puffin.external.hp.com (192.25.206.4): 56 data bytes
64 bytes from 192.25.206.4: icmp_seq=3D0 ttl=3D239 time=3D17262.6 ms
64 bytes from 192.25.206.4: icmp_seq=3D1 ttl=3D239 time=3D17236.5 ms
64 bytes from 192.25.206.4: icmp_seq=3D2 ttl=3D239 time=3D17231.7 ms
64 bytes from 192.25.206.4: icmp_seq=3D3 ttl=3D239 time=3D17246.6 ms

I don't get any response from via my SourceForge account. Is NIMBA
bogging down HP or something? :-)

Regards,

Albert

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From - Thu Nov 08 21:19:24 2018
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From: Jurij Smakov <jurij@lokmail.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] puffin, parisc-linux.org slow/dead?
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> I'm trying to do a CVS update of my kernel source, but puffin is
> decidedly non-responsive (or is the CVS repository perhaps mirrored
> somewhere else?).
> 
> From my own machine:
> 
> PING puffin.external.hp.com (192.25.206.4): 56 data bytes
> 64 bytes from 192.25.206.4: icmp_seq=0 ttl=239 time=17262.6 ms
> 64 bytes from 192.25.206.4: icmp_seq=1 ttl=239 time=17236.5 ms
> 64 bytes from 192.25.206.4: icmp_seq=2 ttl=239 time=17231.7 ms
> 64 bytes from 192.25.206.4: icmp_seq=3 ttl=239 time=17246.6 ms
> 
> I don't get any response from via my SourceForge account. Is NIMBA
> bogging down HP or something? :-)
> 
> Regards,
> 
> Albert

Hi Albert and others!

For the last 4 days I was unable to traceroute www.parisc-linux.org and
puffin, not talking about downloading something from them. Tracerout
dies somewhere in Qwest:

16  atl-edge-17.inet.qwest.net (205.171.21.186)  132.280 ms  131.226 ms  131.866 ms
17  65.112.33.30 (65.112.33.30)  134.950 ms  134.708 ms  137.191 ms
18  * * *

It is very annoying and I am not sure, whether I can do anything about it.

Best regards,

Jurij.







From - Thu Nov 08 21:19:24 2018
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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: Re: [parisc-linux] 720 - some progress
Date: Fri, 28 Sep 2001 18:24:22 +0200
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Hello,

I've booted my nfsroot again with 2.4.9-pa22 (I'm waiting for puffin to
come back so that I can update, and try Jurij's patches).

I mounted /proc, remounted / rw and went on my way.

I replaced ls, sleep and tar with the busybox binary from the latest
disks-hppa/current Debian root.bin.

Then I tried a mke2fs on my SCSI disk's 2nd partition (ext2), in an
attempt to get my system to boot from disk... Eek!

scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 005ee038 (script[0x180e]), dsps = 005eecde, target = 0
scsi0: Failing command for ID6
scsi0: Serious error, sstat0 = 04
scsi0: Chip register contents:
 (script[0] at virt 105e8000, bus 5e8000)
 00  sien:  af  sdid:  40  scntl1:20  scntl0:d4
 04  socl:  06  sodl:  00  sxfer: 00  scid:  80
 08  sbcl:  00  sbdl:  00  sidl:  00  sfbr:  00
 0C  sstat2:06  sstat1:00  sstat0:00  dstat: 00
 10
 14  ctest3:84  ctest2:25  ctest1:0b  ctest0:00
 18  ctest7:00  ctest6:00  ctest5:00  ctest4:00
 1C  temp:  00000000
 20              ctest8:ff  istat: 06  dfifo: 00
 24  dbc:   0e000001  dnad:  005eecde  dsp:   005ee038
 30  dsps:  005eecde
 34  dmode: 80
 38  dcntl: 80  dwt:   00  dien:  1d
 3C
scsi0: Unexpected stacked interrupt, istat 06, sstat0 08, dstat 00
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI bus and chip

Anything I can do now to help the hackers debug this problem?

Regards,

Albert

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Subject: Re: [parisc-linux] puffin, parisc-linux.org slow/dead?
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Hello,

On Fri, 28 Sep 2001, Jurij Smakov wrote:

> > I'm trying to do a CVS update of my kernel source, but puffin is
> > decidedly non-responsive (or is the CVS repository perhaps mirrored
> > somewhere else?).
> >=20
> > From my own machine:
> >=20
> > PING puffin.external.hp.com (192.25.206.4): 56 data bytes
> > 64 bytes from 192.25.206.4: icmp_seq=3D0 ttl=3D239 time=3D17262.6 ms
> > 64 bytes from 192.25.206.4: icmp_seq=3D1 ttl=3D239 time=3D17236.5 ms
> > 64 bytes from 192.25.206.4: icmp_seq=3D2 ttl=3D239 time=3D17231.7 ms
> > 64 bytes from 192.25.206.4: icmp_seq=3D3 ttl=3D239 time=3D17246.6 ms
> >=20
> > I don't get any response from via my SourceForge account. Is NIMBA
> > bogging down HP or something? :-)
> >=20
> > Regards,
> >=20
> > Albert
>=20
> Hi Albert and others!
>=20
> For the last 4 days I was unable to traceroute www.parisc-linux.org and
> puffin, not talking about downloading something from them. Tracerout
> dies somewhere in Qwest:
>=20
> 16  atl-edge-17.inet.qwest.net (205.171.21.186)  132.280 ms  131.226 ms  =
131.866 ms
> 17  65.112.33.30 (65.112.33.30)  134.950 ms  134.708 ms  137.191 ms
> 18  * * *

 7. ctb-core1-fe-0-0-0.wc.saix.net         0%    6    6    11   11   14 21
 8. ctb-int-fe-0-0-0.saix.net              0%    6    6    11   11   51 170
 9. london-core-s-8-1-0.saix.net          20%    4    6   406  406  408 413
10. ny-core-s-8-1-1.saix.net               0%    5    6   404  402  403 404
11. ???

Western Cape (South Africa), some hop, London, New York, nothing. Could
this still be related to the WTC disaster?

Regards,

Albert

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From - Thu Nov 08 21:19:25 2018
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From: Nathan Neulinger <nneul@umr.edu>
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Subject: [parisc-linux] Status of hp-ux binary compatibility?
Date: Fri, 28 Sep 2001 12:35:26 -0500
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I just started looking at PA-RISC linux 0.9.2 on a J210 (which installed 
great on a narrow scsi drive, but didn't see the internal fw). Only 
problem I've seen so far is that it is spitting out ip_local_deliver bad 
loopback skb: PRE_ROUTING LOCAL_IN messages on the console for the lo 
device.

My main question though - what's the status of hpux binary support? The 
FAQ seems to indicate that some parisc binaries are already functional.

What is necessary to be done on the machine before I can run an HP 
executable?

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216





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> > 	- ./sysdeps/ia64/dl-fptr.c changes for try_lock
> > 	- Put change back into dpatch
> 
> Excellent.
> 
> > 	- dpkg-buildpackage now makes it to the point of using a new
> > 	  ld.so.1, which seg's... so I'm back to figuring out why.
> 
> Yes.  If you decode that long command, it's probably running zic -- that's
> the first thing it attempts to build natively.
> 
> By the way, there's glibc 2.2.4-2 out now; I don't know what changes
> BenC made to it.  In any case, I thought we'd decided the problem was
> with a bogus C compiler (since 2.2.3-9 now fails to build).  Any update
> on getting a compiler which fixes this?
>

No, I never get as far as making zic.

make[2]: Entering directory `/raid/glibc_build2/glibc-2.2.4/glibc-2.2.4/sunrpc'
/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/elf/ld.so.1 --library-path /raid/glibc_build2/glibc-2.2.4/hppa-linux/obj:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/math:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/elf:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/dlfcn:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/nss:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/nis:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/rt:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/resolv:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/crypt:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/linuxthreads /raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/sunrpc/rpcgen -Y `gcc -print-file-name=cpp | sed 's|/cpp$||'` -c rpcsvc/bootparam_prot.x -o /raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/sunrpc/xbootparam_prot.T
make[2]: *** [/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/sunrpc/xbootparam_prot.stmp] Segmentation fault
make[2]: Leaving directory `/raid/glibc_build2/glibc-2.2.4/glibc-2.2.4/sunrpc'
make[1]: *** [sunrpc/others] Error 2
make[1]: Leaving directory `/raid/glibc_build2/glibc-2.2.4/glibc-2.2.4'
make: *** [all] Error 2

Is the last I see. And I'm pretty confused by _what_ is's really trying to do.
It's calling ld.so.1? Or is this just really ld? I wigged out the first time
I saw it fail here. I've seen many weird things, but the internals of glibc are
_really_ wired.

execve("/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/elf/ld.so.1", ["/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/elf/ld.so.1", "--library-path", "/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/math:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/elf:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/dlfcn:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/nss:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/nis:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/rt:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/resolv:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/crypt:/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/linuxthreads", "/raid/glibc_build2/glibc-2.2.4/hppa-linux/obj/sunrpc/rpcgen", "-Y", "/lib", "-c", "rpcsvc/bootparam_prot.x", "-o", "/raid/glibc_build2/g
 libc-2.2.4/hppa-linux/obj/sunrpc/xbootparam_prot.T"], [/* 18 vars */]) = 0
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++

Out of curiosity, is there a gdb package built for debian-hppa?
(Last I checked there was none)

I'll try to debug this on the weekend.
Though my 712/60 has just gone dead on serial and ssh :}

---

I'll give glibc-2.2.4-2 a shot, and see what the difference are.
I assume that -2 is on the debian pool already.

Who is BenC? :)
Is he making general glibc changes or hppa specific ones?

Who's working on the compiler for parisc?

c. 




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On Fri, Sep 28, 2001 at 12:35:26PM -0500, Nathan Neulinger wrote:
> I just started looking at PA-RISC linux 0.9.2 on a J210 (which installed 
> great on a narrow scsi drive, but didn't see the internal fw). Only 
> problem I've seen so far is that it is spitting out ip_local_deliver bad 
> loopback skb: PRE_ROUTING LOCAL_IN messages on the console for the lo 
> device.
> 

I got rid of that message by killing the dhcp client daemon.


-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




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Hi Albert,

> Then I tried a mke2fs on my SCSI disk's 2nd partition (ext2), in an
> attempt to get my system to boot from disk... Eek!
>
> scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
> scsi0: dsp = 005ee038 (script[0x180e]), dsps = 005eecde, target = 0
> scsi0: Failing command for ID6
> scsi0: Serious error, sstat0 = 04
> scsi0: Chip register contents:
>  (script[0] at virt 105e8000, bus 5e8000)
>  00  sien:  af  sdid:  40  scntl1:20  scntl0:d4
>  04  socl:  06  sodl:  00  sxfer: 00  scid:  80
>  08  sbcl:  00  sbdl:  00  sidl:  00  sfbr:  00
>  0C  sstat2:06  sstat1:00  sstat0:00  dstat: 00
>  10
>  14  ctest3:84  ctest2:25  ctest1:0b  ctest0:00
>  18  ctest7:00  ctest6:00  ctest5:00  ctest4:00
>  1C  temp:  00000000
>  20              ctest8:ff  istat: 06  dfifo: 00
>  24  dbc:   0e000001  dnad:  005eecde  dsp:   005ee038
>  30  dsps:  005eecde
>  34  dmode: 80
>  38  dcntl: 80  dwt:   00  dien:  1d
>  3C
> scsi0: Unexpected stacked interrupt, istat 06, sstat0 08, dstat 00
> scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI bus and chip

On my installation i "fixed" this by switching off SCSI disconnects for my
disks. IIRC, this was by adding sim700=nodisc:0x70 to the kernel command
line.

I'm currently about 150 km away from my HP9000/720 during the weekend.
I'll test the proposed patch on Monday.

Cheers,
Jochen





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Subject: RE: [parisc-linux] Status of hp-ux binary compatibility?
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Ah, thanks!... wonder why it got enabled since I told it no on dhcp...
Weird. (I'm not a debian user, so some of it's ways of doing things are a
bit odd to me.)

-- Nathan

> -----Original Message-----
> From: Richard Allen [mailto:ra@hp.is]
> Sent: Friday, September 28, 2001 1:31 PM
> To: Nathan Neulinger
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Status of hp-ux binary compatibility?
> 
> 
> On Fri, Sep 28, 2001 at 12:35:26PM -0500, Nathan Neulinger wrote:
> > I just started looking at PA-RISC linux 0.9.2 on a J210 
> (which installed 
> > great on a narrow scsi drive, but didn't see the internal fw). Only 
> > problem I've seen so far is that it is spitting out 
> ip_local_deliver bad 
> > loopback skb: PRE_ROUTING LOCAL_IN messages on the console 
> for the lo 
> > device.
> > 
> 
> I got rid of that message by killing the dhcp client daemon.
> 
> 
> -- 
> Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX 
> Certified Admin.
>                --  Solaris 7 Certified Systems and Network 
> Administrator.
> Bell Labs Unix --  Reach out and grep someone.
> Those who do not understand Unix are condemned to reinvent it, poorly.
> 




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"Carlos O'Donell Jr." writes...

[snip]
> Out of curiosity, is there a gdb package built for debian-hppa?

There's an unofficial package in

ftp://puffin.external.hp.com/pub/parisc/binaries/debian/unofficial-debs

pehc cvs needs to be synced up with upstream before the changes can be sent 
upstream and also put in the official Debian package.

[snip]
> Who's working on the compiler for parisc?

No one. Alan Modra periodically does cvs merges and I use that to generate 
patches for the Debian package. We need to catch up with the 
3.0.2ds2-0pre010922 version of the package, which I hope to do next week. That 
might help glibc but I'm betting whatever's causing the build failure it still 
out there.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: "Neulinger, Nathan" <nneul@umr.edu>
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Subject: [parisc-linux] Where to get recent parisc kernels w/o building?
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Is there any convenient place to grab a 2.4.9 (or more recent) vmlinux for
parisc-linux other than getting it myself out of cvs? (Don't have a
functional build environment at the moment.)

Also, what about a working gcc? I've apt-get upgrade'd everything, and gcc
complains about lots of header file goofiness when compiling even a simple
hello world program.

Also, does the kernel build have to be done cross-compile, or can it be
built on the parisc-linux machine itself?

-- Nathan




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From: "Neulinger, Nathan" <nneul@umr.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] RE: Where to get recent parisc kernels w/o building?
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Never mind on the gcc problem... figured out I didn't have libc6-dev
installed. (Not quite used to debian yet.)

-- Nathan

> -----Original Message-----
> From: Neulinger, Nathan 
> Sent: Friday, September 28, 2001 3:38 PM
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Where to get recent parisc kernels w/o building?
> 
> 
> Is there any convenient place to grab a 2.4.9 (or more 
> recent) vmlinux for parisc-linux other than getting it myself 
> out of cvs? (Don't have a functional build environment at the moment.)
> 
> Also, what about a working gcc? I've apt-get upgrade'd 
> everything, and gcc complains about lots of header file 
> goofiness when compiling even a simple hello world program.
> 
> Also, does the kernel build have to be done cross-compile, or 
> can it be built on the parisc-linux machine itself?
> 
> -- Nathan
> 




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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: Re: [parisc-linux] Where to get recent parisc kernels w/o building?
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Hello,

On Fri, 28 Sep 2001, Neulinger, Nathan wrote:

> Is there any convenient place to grab a 2.4.9 (or more recent) vmlinux for
> parisc-linux other than getting it myself out of cvs? (Don't have a
> functional build environment at the moment.)

I suggest grabbing palo-latest, linux-latest and xc-latest from
ftp://puffin.external.hp.com (I can't get to it at the moment, but maybe
you can). Unless you are very lucky, you're going to at least need to
change the boot parameters, for which you need palo anyway. So grab 'em
and set up a build environment if you're REALLY serious about your HP.
:-)
=20
> Also, what about a working gcc? I've apt-get upgrade'd everything, and gcc
> complains about lots of header file goofiness when compiling even a simple
> hello world program.

As far as I know, we're still missing a kernel-headers package for hppa.
I could be wrong. Perhaps you should find the right person and complain
about this. :-) I think a suggested solution was to force-install the
sparc headers or something...
=20
> Also, does the kernel build have to be done cross-compile, or can it be
> built on the parisc-linux machine itself?

You can build it either way. I don't have a 2nd HP machine, so I have to
cross-compile. It's actually pretty nice considering that I have access
to a SMP p3-600 box. :-)

Regards,

Albert

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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] Where to get recent parisc kernels w/o building?
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"Neulinger, Nathan" writes...

> Is there any convenient place to grab a 2.4.9 (or more recent) vmlinux for
> parisc-linux other than getting it myself out of cvs? (Don't have a
> functional build environment at the moment.)

The ones in
ftp://puffin.external.hp.com/pub/parisc/binaries/kernels
are rather out of date. I'll try an build some next week if someone doesn't 
beat me to it.

> Also, what about a working gcc? I've apt-get upgrade'd everything, and gcc
> complains about lots of header file goofiness when compiling even a simple
> hello world program.

apt-get install libc6-dev

> Also, does the kernel build have to be done cross-compile, or can it be
> built on the parisc-linux machine itself?

The preferred way of building kernels is natively. However, if the only native 
box you have access is slow, then you'll probably still want to cross compile.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: Re: [parisc-linux] Where to get recent parisc kernels w/o building?
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I just spotted a note on my parisc-linux.org archive mentioning:

ftp://puffin.external.hp.com/pub/parisc/binaries/kernels/
or
http://puffin.external.hp.com/pub/parisc/binaries/kernels/

Enjoy!

On Fri, 28 Sep 2001, Albert Strasheim wrote:

> Hello,
>=20
> On Fri, 28 Sep 2001, Neulinger, Nathan wrote:
>=20
> > Is there any convenient place to grab a 2.4.9 (or more recent) vmlinux =
for
> > parisc-linux other than getting it myself out of cvs? (Don't have a
> > functional build environment at the moment.)
>=20
> I suggest grabbing palo-latest, linux-latest and xc-latest from
> ftp://puffin.external.hp.com (I can't get to it at the moment, but maybe
> you can). Unless you are very lucky, you're going to at least need to
> change the boot parameters, for which you need palo anyway. So grab 'em
> and set up a build environment if you're REALLY serious about your HP.
> :-)
> =20
> > Also, what about a working gcc? I've apt-get upgrade'd everything, and =
gcc
> > complains about lots of header file goofiness when compiling even a sim=
ple
> > hello world program.
>=20
> As far as I know, we're still missing a kernel-headers package for hppa.
> I could be wrong. Perhaps you should find the right person and complain
> about this. :-) I think a suggested solution was to force-install the
> sparc headers or something...
> =20
> > Also, does the kernel build have to be done cross-compile, or can it be
> > built on the parisc-linux machine itself?
>=20
> You can build it either way. I don't have a 2nd HP machine, so I have to
> cross-compile. It's actually pretty nice considering that I have access
> to a SMP p3-600 box. :-)
>=20
> Regards,
>=20
> Albert



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To: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Hello,

Is this going into CVS any time soon? It seems to work fine on my
720/50.

Regards,

Albert

On Mon, 24 Sep 2001, Carlos O'Donell Jr. wrote:

> parisc,
>=20
> Walking the source for devfs and thinking about Alberts problem.
>=20
> Would the non-working devfs be fixed by adding:
>=20
> Non-atomic versions of set_bit e.g. __set_bit=20
> and test_and_set_bit e.g. __test_and_set_bit
> to linux/include/asm-parisc/bitops.h?
>=20
> I have the latest CVS linux module.
> I've patched against that. It compiles now ;)
> (god bless make -j8)
>=20
> I'm currently sleepy, but I'll post the patch, and test
> it tommorow on a 712/60 and 715/50.
>=20
> c.

<patch snipped>

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Hello,


On Fri, 28 Sep 2001, Matthew Wilcox wrote:

> On Thu, Sep 27, 2001 at 10:42:25AM -0400, Jurij Smakov wrote:
> > I hope I've got it right. It only emulates MFCTL and only when the
> > source control register is 27. It turns out, that pt_regs does not
> > have a member for cr26 and adding one does not look like an easy
> > task.=20
>=20
> I think the right way to do this would be...
>=20
> > @@ -363,6 +364,17 @@
> >                 si.si_code =3D ILL_PRVOPC;
> >                 goto give_sigill;
> >         case 11:
> > +               if(!(regs->iir & 0xfc000000) && (((regs->iir & 0x1fe0)>=
>5) =3D=3D 0x45)) {
> > +                 /* This is MFCTL instruction */
> > +                 fromcr =3D (regs->iir & 0x03e00000)>>21;
> > +                 togr =3D (regs->iir & 0x1f);
> > +                 /* Emulate the instruction if the read is from cr27 */
>=20
> 		if (fromcr =3D=3D 26 || fromcr =3D=3D 27) {
> 			regs->gr[togr] =3D mfctl(fromcr);
> 			return;
> 		}

Making this change causes the build to fail:

make[1]: Entering directory `/tmp/.hppa/linux/arch/parisc/kernel'
hppa-linux-gcc -D__KERNEL__ -I/tmp/.hppa/linux/include -Wall -Wstrict-proto=
types -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-com=
mon -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-=
calls -mdisable-fpregs -ffunction-sections -march=3D1.1 -mschedule=3D7100 -=
c -o traps.o traps.c
{standard input}: Assembler messages:
{standard input}:912: Error: Undefined absolute constant: 'fromcr'.
{standard input}:912: Error: Field out of range [0..31] (-1).
{standard input}:912: Error: Invalid operands
make[1]: *** [traps.o] Error 1
make[1]: Leaving directory `/tmp/.hppa/linux/arch/parisc/kernel'
make: *** [_dir_arch/parisc/kernel] Error 2

What gives?
=20
> > +               }
> > +               /* Something else is wrong */
> >                 die_if_kernel("Privileged register - shouldn't happen!"=
, regs, code);
> >                 si.si_code =3D ILL_PRVREG;
> >         give_sigill:
>=20
> Can you give this a try?

Did. I don't think I messed it up. :-) Jurij's code compiles, so I'm
leaving it there for the moment and testing again.

Is your code functionally equivalent, or does it do something else
entirely?

Aside, I'm working on putting all the recent patches together into one
big fix720.diff.

Jochen suggested that in the case 11 handler, Jurij's

regs->gr[togr] =3D regs->cr27;

be replaced with

regs->iaoq[0] =3D regs->iaoq[1];
regs->iaoq[1] =3D regs->iaoq[0] + 4;

Is this right, or should I leave Jurij's code?

Regards,

Albert

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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: Re: [parisc-linux] 720 - some progress
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Hello,

Some minor progress. I'm now netbooting a lifimage and then running my
programs from disk. The only problem is that I can't dpkg-reconfigure
the chroot I copied over to the disk after partially bootstrapping it
and nfsroot booting it because I can't install libterm-readline-gnu-perl
and related packages (currently the system seems to hang when I do a
dpkg -i libreadline4_4.2-5_hppa.deb. libc6 and a few others dpkg -i'd
fine though (running -pa22 with only the case 18: and without Jurij's
patches). I'm currently running -pa27+jurij (I had to manually apply his
2nd patch... it didn't like the traps.c I had).

Another question: shutdown doesn't seem to work? Is it because I am
running with init=/bin/sh (thus no init, and no runlevels to change), or
is something more sinister at work here? Is there some other way I can
"neatly" bring down my HP?

That's about it for now. I'm going to try booting a -pa27 without
jurij's fixes and with just the case fall-through.

Regards,

Albert

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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: Re: [parisc-linux] 720 - some progress
Date: Sat, 29 Sep 2001 12:01:42 +0200
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Hello,

On Sat, 29 Sep 2001, Albert Strasheim wrote:

> Hello,
>=20
> Some minor progress. I'm now netbooting a lifimage and then running my
> programs from disk. The only problem is that I can't dpkg-reconfigure
> the chroot I copied over to the disk after partially bootstrapping it
> and nfsroot booting it because I can't install libterm-readline-gnu-perl
> and related packages (currently the system seems to hang when I do a
> dpkg -i libreadline4_4.2-5_hppa.deb. libc6 and a few others dpkg -i'd
> fine though (running -pa22 with only the case 18: and without Jurij's
> patches). I'm currently running -pa27+jurij (I had to manually apply his
> 2nd patch... it didn't like the traps.c I had).

Not much luck with this one either. dpkg has just been sitting there
for more than an hour now.

Could I persuade someone with a working HP to bootstrap a new nfsroot,
please?

You probably also need to add the following packages:

busybox-static_0.60.1-1_hppa.deb
libc6_2.2.3-9_hppa.deb
libdb2_2.7.7.0-1_hppa.deb
libgdbmg1_1.7.3-27_hppa.deb
libncurses5_5.2.20010318-3_hppa.deb
libperl5.6_5.6.1-5_hppa.deb
libreadline4_4.2-5_hppa.deb
libterm-readline-gnu-perl_1.10-1_hppa.deb
perl_5.6.1-5_hppa.deb
perl-base_5.6.1-5_hppa.deb
perl-modules_5.6.1-5_all.deb

I think that should leave you with a system the 720/50 people can work
from. :-)

Regards,

Albert

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From - Thu Nov 08 21:19:26 2018
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From: Jochen Friedrich <jochen@scram.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 720 - some progress
Date: Sat, 29 Sep 2001 13:17:21 +0200 (CEST)
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To: Albert Strasheim <fullung@ilink.nis.za>
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Hi Albert,

On Sat, 29 Sep 2001, Albert Strasheim wrote:

> > 		if (fromcr == 26 || fromcr == 27) {
> > 			regs->gr[togr] = mfctl(fromcr);
> > 			return;
> > 		}
>
> Making this change causes the build to fail:

> {standard input}:912: Error: Undefined absolute constant: 'fromcr'.
> {standard input}:912: Error: Field out of range [0..31] (-1).
> {standard input}:912: Error: Invalid operands

> Jochen suggested that in the case 11 handler, Jurij's
>
> regs->gr[togr] = regs->cr27;
>
> be replaced with
>
> regs->iaoq[0] = regs->iaoq[1];
> regs->iaoq[1] = regs->iaoq[0] + 4;

Not replaced, but added:

 		if (fromcr == 26) {
 			regs->gr[togr] = mfctl(26);
			regs->iaoq[0] = regs->iaoq[1];
			regs->iaoq[1] = regs->iaoq[0] + 4;
 			return;
 		}
 		if (fromcr == 27) {
 			regs->gr[togr] = mfctl(27);
			regs->iaoq[0] = regs->iaoq[1];
			regs->iaoq[1] = regs->iaoq[0] + 4;
 			return;
 		}

These commands:

regs->iaoq[0] = regs->iaoq[1];
regs->iaoq[1] = regs->iaoq[0] + 4;

just advance the instruction counter of the PA-RISC CPU, so after
returning from the trap, the CPU will move on instead of retrying the
failed op-code (which will, of course, trap again causing an infinite
loop)

Cheers,
Jochen





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Hello,

Just want to make sure I got this right. I've attached:

00-traps.c.orig
01_1-traps.c.quickfix
01_2-traps.c.case18
02-traps.c.case11
03-traps.c.jochen

00-traps.c.orig is the traps.c from -pa27. quickfix is the one that
simply adds a case 18: fall-through (and has worked quite well me for
me).

case18 is Jurij's first patch. case11 is his 2nd patch, which I had to
add in my hand. Then jochen is jochen's additions to that (please check
that I understood you correctly).

I've not included a traps.c with Matthew's code:

	...

	/* Emulate the instruction if the read is from cr27 */
	if (fromcr =3D=3D 26 || fromcr =3D=3D 27) {
		regs->gr[togr] =3D mfctl(fromcr);
		return;
	}
	/* Something else is wrong */

	...

It didn't compile for me and I'm not quite sure how to fix it and still
keep the original meaning intact. :-)

Regards,

Albert

On Sat, 29 Sep 2001, Jochen Friedrich wrote:

> Hi Albert,
>=20
> On Sat, 29 Sep 2001, Albert Strasheim wrote:
>=20
> > > 		if (fromcr =3D=3D 26 || fromcr =3D=3D 27) {
> > > 			regs->gr[togr] =3D mfctl(fromcr);
> > > 			return;
> > > 		}
> >
> > Making this change causes the build to fail:
>=20
> > {standard input}:912: Error: Undefined absolute constant: 'fromcr'.
> > {standard input}:912: Error: Field out of range [0..31] (-1).
> > {standard input}:912: Error: Invalid operands
>=20
> > Jochen suggested that in the case 11 handler, Jurij's
> >
> > regs->gr[togr] =3D regs->cr27;
> >
> > be replaced with
> >
> > regs->iaoq[0] =3D regs->iaoq[1];
> > regs->iaoq[1] =3D regs->iaoq[0] + 4;
>=20
> Not replaced, but added:
>=20
>  		if (fromcr =3D=3D 26) {
>  			regs->gr[togr] =3D mfctl(26);
> 			regs->iaoq[0] =3D regs->iaoq[1];
> 			regs->iaoq[1] =3D regs->iaoq[0] + 4;
>  			return;
>  		}
>  		if (fromcr =3D=3D 27) {
>  			regs->gr[togr] =3D mfctl(27);
> 			regs->iaoq[0] =3D regs->iaoq[1];
> 			regs->iaoq[1] =3D regs->iaoq[0] + 4;
>  			return;
>  		}
>=20
> These commands:
>=20
> regs->iaoq[0] =3D regs->iaoq[1];
> regs->iaoq[1] =3D regs->iaoq[0] + 4;
>=20
> just advance the instruction counter of the PA-RISC CPU, so after
> returning from the trap, the CPU will move on instead of retrying the
> failed op-code (which will, of course, trap again causing an infinite
> loop)
>=20
> Cheers,
> Jochen

--T4sUOijqQbZv57TR
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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Status of hp-ux binary compatibility?
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Cc: 'Richard Allen' <ra@hp.is>, parisc-linux@lists.parisc-linux.org
To: "Neulinger, Nathan" <nneul@umr.edu>
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Xref: news.gmane.org gmane.linux.ports.parisc:12367

On Fri, Sep 28, 2001 at 02:02:09PM -0500, Neulinger, Nathan wrote:
> Ah, thanks!... wonder why it got enabled since I told it no on dhcp...
> Weird. (I'm not a debian user, so some of it's ways of doing things are a
> bit odd to me.)

Caused by a broken dhcp-client package.  Should be invoked via ifup/ifdown,
but was also being started via init scripts.  rm /etc/rc?.d/*dhcp-client
(if I rememeber the name right) to fix it.

Richard





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Where to get recent parisc kernels w/o building?
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Xref: news.gmane.org gmane.linux.ports.parisc:12368

On Fri, Sep 28, 2001 at 03:37:57PM -0500, Neulinger, Nathan wrote:
> Is there any convenient place to grab a 2.4.9 (or more recent) vmlinux for
> parisc-linux other than getting it myself out of cvs? (Don't have a
> functional build environment at the moment.)

Don't know how up to date you want, but

ftp://ftp.de.debian.org/debian/dists/woody/main/disks-hppa/current/32/linux

is 2.4.9 from 2001-09-25

Richard





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From: Jochen Friedrich <jochen@scram.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 720 - some progress
Date: Sat, 29 Sep 2001 15:23:20 +0200 (CEST)
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To: Albert Strasheim <fullung@ilink.nis.za>
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Hi Albert,

> case18 is Jurij's first patch. case11 is his 2nd patch, which I had to
> add in my hand. Then jochen is jochen's additions to that (please check
> that I understood you correctly).

Yes, it's exactly what i meant...

I'm currently re-evaluating the case 18 stuff. Maybe Jurijs proposal about
checking for unaligned access using a decoded opcode might me faster than
dereferencing 3 page tables and having to decode the opcode anyways to
check for read vs write access...

The only question that remains is if the paging code will handle a
recursive trap gracefully (i.e. when the unaligned access emulation code
traps again because of a page fault).

Cheers,
Jochen





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: Betr.: [parisc-linux] HP C180
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To: Jurriaan Kalkman <Jurriaan.Kalkman@zrt.nl>
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Xref: news.gmane.org gmane.linux.ports.parisc:12370

On Wed, Sep 26, 2001 at 08:56:08AM +0200, Jurriaan Kalkman wrote:
> >My c180 is now happily booting (current CVS kernel), however whenever I
> >try to ls some dirs (no all, this example is from /usr/bin) I get errors
> >along these lines
> >ls: memory exhausted

I had this with 2.4.9, turned out I'd booted a root fs with old libc6
installed.  When I rebooted using a current libc6 the problem went away.

Richard




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From: Jurij Smakov <jurij@lokmail.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Cumulative patch for 720
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Xref: news.gmane.org gmane.linux.ports.parisc:12371

Hi!

I've put together Jochen's patch of trap 18 and patch
for trap 11, corrected according to Matthew's and Jochen's
remarks, which will supposedly make all 720 people very 
happy :-). It compiles, at least.

Jurij

--- linux.orig/arch/parisc/kernel/traps.c       Wed Sep 19 12:02:30 2001
+++ linux/arch/parisc/kernel/traps.c    Sat Sep 29 15:14:18 2001
@@ -46,8 +46,12 @@
 #define PRINT_USER_FAULTS /* (turn this on if you want user faults to be */
                         /*  dumped to the console via printk)          */
 
+#define DEBUG_CASE18
+
 void handle_unaligned(struct pt_regs *regs);
 
+unsigned long parisc_acctyp(unsigned long code, unsigned int inst);
+
 static int printbinary(char *buf, unsigned long x, int nbits)
 {
        unsigned long mask = 1UL << (nbits - 1);
@@ -273,6 +277,11 @@
 {
        unsigned long fault_address = 0;
        unsigned long fault_space = 0;
+       int fromcr,togr;
+        unsigned long acc_type;
+        pte_t * pte;
+        pgd_t * pgd;
+        pmd_t * pmd;
        struct siginfo si;
 #ifdef CONFIG_KWDB
        struct save_state ssp;
@@ -322,12 +331,15 @@
                fault_address = regs->ior;
                parisc_terminate("Non access data tlb fault!",regs,code,fault_ad
dress);
 
+       pagefault:
+#ifdef DEBUG_CASE18
+               printk("to pagefault\n");
+#endif
        case 15:
        case 26:
                fault_address = regs->ior;
                fault_space   = regs->isr;
                break;
-
        case 19:
                regs->gr[0] |= PSW_X; /* So we can single-step over the trap */
                /* fall thru */
@@ -363,6 +375,24 @@
                si.si_code = ILL_PRVOPC;
                goto give_sigill;
        case 11:
+               if(!(regs->iir & 0xfc000000) && (((regs->iir & 0x1fe0)>>5) == 0x
45)) {
+                 /* This is MFCTL instruction */
+                 fromcr = (regs->iir & 0x03e00000)>>21;
+                 togr = (regs->iir & 0x1f);
+                 /* Emulate the instruction if the read is from cr27 */
+                 if(fromcr == 26) {
+                   regs->gr[togr] = mfctl(26);
+                   regs->iaoq[0] = regs->iaoq[1];
+                   regs->iaoq[1] = regs->iaoq[0] + 4;
+                   return; 
+                 } else if (fromcr == 27) {
+                   regs->gr[togr] = mfctl(27);
+                   regs->iaoq[0] = regs->iaoq[1];
+                   regs->iaoq[1] = regs->iaoq[0] + 4;
+                   return;
+                 }
+               }
+               /* Something else is wrong */
                die_if_kernel("Privileged register - shouldn't happen!", regs, c
ode);
                si.si_code = ILL_PRVREG;
        give_sigill:
@@ -415,7 +445,57 @@
                    si.si_addr = (void *) regs->ior;
                force_sig_info(SIGSEGV, &si, current);
                return;
-
+       case 18:
+#ifdef DEBUG_CASE18
+               printk(KERN_DEBUG "got case18 -");
+#endif
+               fault_address = regs->iaoq[0];
+               fault_space = regs->iasq[0];
+               
+               if (in_interrupt() || !(current->mm))
+                 goto pagefault; /* shouldn't happen */
+               /* FIXME: do propper locking here */
+               
+               /* page directory */
+               pgd = pgd_offset(current->mm, fault_address);
+               if (pgd_none(*pgd) || pgd_bad(*pgd))
+                 goto pagefault; /* expandable stack etc */
+               
+               /* middle page directory */
+               pmd = pmd_offset(pgd, fault_address);
+               if (pmd_none(*pmd) || pmd_bad(*pmd))
+                 goto pagefault; /* expandable stack etc */
+               
+               /* page table entry */
+               pte = pte_offset(pmd, fault_address);
+               if (pte_none(*pte))
+                 goto pagefault; /* expandable stack etc */
+               
+               if (!pte_present(*pte)) /* is this test sufficient? */
+                goto pagefault; /* page not loaded */
+              
+               acc_type = parisc_acctyp(code,regs->iir);
+              
+               if ((acc_type & VM_WRITE) && (!(pte_write(*pte))))
+                goto pagefault; /* Write protected access */
+
+               if ((acc_type & VM_READ) && (!(pte_read(*pte))))
+                goto pagefault; /* Read protected access */
+              
+               if ((acc_type & VM_EXEC) && (!(pte_read(*pte))))
+                       goto pagefault; /* Exec protected access */
+              
+               if (!(regs->ior & 3)) {
+#ifdef DEBUG_CASE18
+                printk("spurious? -");
+#endif
+                goto pagefault;
+               }
+               /* fall through to case 28 */
+#ifdef DEBUG_CASE18
+               printk("to unaligned\n");
+               show_regs(regs);
+#endif
        case 28:  /* Unaligned just causes SIGBUS for now */
                handle_unaligned(regs);
 #if 0







From - Thu Nov 08 21:19:29 2018
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From: <nick@snowman.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Betr.: [parisc-linux] HP C180
Date: Sat, 29 Sep 2001 11:17:41 -0400 (EDT)
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To: Richard Hirst <rhirst@linuxcare.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:12372

Ok, can you point me to a totally current root image?
	Nick

On Sat, 29 Sep 2001, Richard Hirst wrote:

> On Wed, Sep 26, 2001 at 08:56:08AM +0200, Jurriaan Kalkman wrote:
> > >My c180 is now happily booting (current CVS kernel), however whenever I
> > >try to ls some dirs (no all, this example is from /usr/bin) I get errors
> > >along these lines
> > >ls: memory exhausted
> 
> I had this with 2.4.9, turned out I'd booted a root fs with old libc6
> installed.  When I rebooted using a current libc6 the problem went away.
> 
> Richard
> 





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From: Albert Strasheim <fullung@ilink.nis.za>
Newsgroups: gmane.linux.ports.parisc
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Hello,

Make your own:

 palo -f /dev/null -k vmlinux -r root.bin -s lifimage [-b iplboot] \
        -c "0/linux HOME=3D/ root=3D/dev/ram initrd=3D0/ramdisk"

where vmlinux is the a kernel you've compiled from CVS (possibly using
the cross-compiler) and root.bin is the latest Debian hppa bootdisk.
Netboot the resulting lifimage and off you go! :-)

Regards,

Albert

On Sat, 29 Sep 2001, nick@snowman.net wrote:

> Ok, can you point me to a totally current root image?
> 	Nick
>=20
> On Sat, 29 Sep 2001, Richard Hirst wrote:
>=20
> > On Wed, Sep 26, 2001 at 08:56:08AM +0200, Jurriaan Kalkman wrote:
> > > >My c180 is now happily booting (current CVS kernel), however wheneve=
r I
> > > >try to ls some dirs (no all, this example is from /usr/bin) I get er=
rors
> > > >along these lines
> > > >ls: memory exhausted
> >=20
> > I had this with 2.4.9, turned out I'd booted a root fs with old libc6
> > installed.  When I rebooted using a current libc6 the problem went away.
> >=20
> > Richard
> >=20
>=20
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
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> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

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From - Thu Nov 08 21:19:30 2018
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Subject: Re: Betr.: [parisc-linux] HP C180
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To: Albert Strasheim <fullung@ilink.nis.za>
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I have been rolling my own kernels, however I've been useing nfsroot with
one of the prebuilt tarballs.  Where can I find the latest debian hppa
bootdisks?  ftp.debian.org?  (I havn't noticed them in my debian mirror).
	Nick

On Sat, 29 Sep 2001, Albert Strasheim wrote:

> Hello,
> 
> Make your own:
> 
>  palo -f /dev/null -k vmlinux -r root.bin -s lifimage [-b iplboot] \
>         -c "0/linux HOME=/ root=/dev/ram initrd=0/ramdisk"
> 
> where vmlinux is the a kernel you've compiled from CVS (possibly using
> the cross-compiler) and root.bin is the latest Debian hppa bootdisk.
> Netboot the resulting lifimage and off you go! :-)
> 
> Regards,
> 
> Albert
> 
> On Sat, 29 Sep 2001, nick@snowman.net wrote:
> 
> > Ok, can you point me to a totally current root image?
> > 	Nick
> > 
> > On Sat, 29 Sep 2001, Richard Hirst wrote:
> > 
> > > On Wed, Sep 26, 2001 at 08:56:08AM +0200, Jurriaan Kalkman wrote:
> > > > >My c180 is now happily booting (current CVS kernel), however whenever I
> > > > >try to ls some dirs (no all, this example is from /usr/bin) I get errors
> > > > >along these lines
> > > > >ls: memory exhausted
> > > 
> > > I had this with 2.4.9, turned out I'd booted a root fs with old libc6
> > > installed.  When I rebooted using a current libc6 the problem went away.
> > > 
> > > Richard
> > > 
> > 
> > 
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 





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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: [parisc-linux] Comments to 2.4.9-pa28
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Hi,

during my stay here in Oldenburg I've got a really nice looking X11 desktop
on a B180 workstation (even colors are looking sane now). While I was
hunting for stifb bugs, the real hard bugs have been in shm handling. The
first one was a problem with flushing the shm page to memory before the
user process uses it. The more annoying one was a mismatch between
shmid_ds from kernel and glibc. Because of that the X server thought it
got passed zero sized shared memory segments from the X clients and
refused to use it. That was the reason for getting really strange pictures,
when using wmaker or enlightenment, which both use MIT-SHM extension very
much. I've changed the kernel representation of shmid_ds, but we could also
change the glibc one. But this would force a recompilation of all programs,
which are using shmctl (.., IPC_STAT, ..).

The change in pgalloc.h isn't the best one, but it served me best for
the moment. The changes in stifb.c fixes the blank function (this caused
the white is blue color problem under X) and added VISUALIZE-EG support
(I'm treating them as a normal artist graphic, which works pretty well).

Greetings from Oldenburg,
Thomas.

PS: If someone wants a testcase, which shows the shm cache flush bug,
either use mm_test from libmm or mail me, I've written a small one.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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> Hello,
> 
> Is this going into CVS any time soon? It seems to work fine on my
> 720/50.
> 
> Regards,
> 
> Albert
> 

Albert,

Have you booted a devfs kernel on you box?
Does it seem to function properly?

Adding devfs to my kernel causes some odd stuff to go on after
trying to enter INIT. Though I haven't had time to sort it out.
The kernel boots fine, but probably one of the startup scripts
is doing something decidedly wrong.

Since you are using init=/bin/sh, and unless you tell devfs
to explicitly mount at boot, you won't _really_ be using 
devfs :)

Sure, it compiles... and it looks like it should work.
But theory and practice are so different it's not funny.

<Carlos looks back at the RF Amplifier design he has on the
whiteboard and chuckles>

c.

> 
> > parisc,
> > 
> > Walking the source for devfs and thinking about Alberts problem.
> > 
> > Would the non-working devfs be fixed by adding:
> > 
> > Non-atomic versions of set_bit e.g. __set_bit 
> > and test_and_set_bit e.g. __test_and_set_bit
> > to linux/include/asm-parisc/bitops.h?
> > 
> > I have the latest CVS linux module.
> > I've patched against that. It compiles now ;)
> > (god bless make -j8)
> > 
> > I'm currently sleepy, but I'll post the patch, and test
> > it tommorow on a 712/60 and 715/50.
> > 
> > c.
> 
> <patch snipped>






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> 
> On my installation i "fixed" this by switching off SCSI disconnects for my
> disks. IIRC, this was by adding sim700=nodisc:0x70 to the kernel command
> line.
> 
> I'm currently about 150 km away from my HP9000/720 during the weekend.
> I'll test the proposed patch on Monday.
>

I usually use sim700=noneg:0xff,nodisc:0xff.
Turn it all off ;)

c. 




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On Saturday 29 September 2001 01:00 am, Albert Strasheim wrote:
> regs->iaoq[0] = regs->iaoq[1];
> regs->iaoq[1] = regs->iaoq[0] + 4;
>
> Is this right, or should I leave Jurij's code?
>
Hello Albert,

An observation:
regs->iaoq[1] is the "following instruction" - where "following" means "in 
execution order".  So replacing the emulated instruction with this seems the 
obvious thing to do.

BUT...
Without examining the instruction (which was at iaoq[1] and is now at 
iaog[0]) I don't think it is safe to assume that the instruction following 
that one in execution order is at iaoq[1]+4 !!  (Branches, nullified 
instructions, conditional instructions, etc).

Perhaps...
Instead of trying to compute (determine) what is the next instruction in 
execution order following iaoq[1] ; iaoq[1] could be set to a value that 
would cause the hardware pipeline to fetch the correct following instruction.

Or perhaps...
A way could be found to use whatever "single step" controls are available to 
get the return made to iaoq[1] instead of iaoq[0] and leave the queues along.

Also...
What about the space register queue?  Might these instructions be in a 
different address space?

Mike




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Hello,

There's a CONFIG_DEVFS_MOUNT option that mounts it at boot. I know I
used fdisk on /dev/scsi/somedamnthing/part3/block10/orifice99 or
somesuch :-)

If init is croaking, you need devfsd perhaps?

But here it works fine.

Regards,

Albert

On Sat, 29 Sep 2001, Carlos O'Donell Jr. wrote:

> > Hello,
> >=20
> > Is this going into CVS any time soon? It seems to work fine on my
> > 720/50.
> >=20
> > Regards,
> >=20
> > Albert
> >=20
>=20
> Albert,
>=20
> Have you booted a devfs kernel on you box?
> Does it seem to function properly?
>=20
> Adding devfs to my kernel causes some odd stuff to go on after
> trying to enter INIT. Though I haven't had time to sort it out.
> The kernel boots fine, but probably one of the startup scripts
> is doing something decidedly wrong.
>=20
> Since you are using init=3D/bin/sh, and unless you tell devfs
> to explicitly mount at boot, you won't _really_ be using=20
> devfs :)
>=20
> Sure, it compiles... and it looks like it should work.
> But theory and practice are so different it's not funny.
>=20
> <Carlos looks back at the RF Amplifier design he has on the
> whiteboard and chuckles>
>=20
> c.
>=20
> >=20
> > > parisc,
> > >=20
> > > Walking the source for devfs and thinking about Alberts problem.
> > >=20
> > > Would the non-working devfs be fixed by adding:
> > >=20
> > > Non-atomic versions of set_bit e.g. __set_bit=20
> > > and test_and_set_bit e.g. __test_and_set_bit
> > > to linux/include/asm-parisc/bitops.h?
> > >=20
> > > I have the latest CVS linux module.
> > > I've patched against that. It compiles now ;)
> > > (god bless make -j8)
> > >=20
> > > I'm currently sleepy, but I'll post the patch, and test
> > > it tommorow on a 712/60 and 715/50.
> > >=20
> > > c.
> >=20
> > <patch snipped>
>=20
>=20

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Hello,

I generally use http://http.us.debian.org/ or http://ftp.sunet.se/pub/
(great mirror site). Your local mirror probably only mirrors i386. I
can't imagine why "normal" sites would want to keep around 4 GB (?) of
HPPA packages. :-)

I also built a new nfsroot for myself by using debootstrap, and slightly
modifying the "woody" script. My system isn't quite up and running yet
(still struggling with Jurij's patch), but you could do the same if your
HP is misbehaving.

Regards,

Albert

On Sat, 29 Sep 2001, nick@snowman.net wrote:

> I have been rolling my own kernels, however I've been useing nfsroot with
> one of the prebuilt tarballs.  Where can I find the latest debian hppa
> bootdisks?  ftp.debian.org?  (I havn't noticed them in my debian mirror).
> 	Nick
>=20
> On Sat, 29 Sep 2001, Albert Strasheim wrote:
>=20
> > Hello,
> >=20
> > Make your own:
> >=20
> >  palo -f /dev/null -k vmlinux -r root.bin -s lifimage [-b iplboot] \
> >         -c "0/linux HOME=3D/ root=3D/dev/ram initrd=3D0/ramdisk"
> >=20
> > where vmlinux is the a kernel you've compiled from CVS (possibly using
> > the cross-compiler) and root.bin is the latest Debian hppa bootdisk.
> > Netboot the resulting lifimage and off you go! :-)
> >=20
> > Regards,
> >=20
> > Albert
> >=20
> > On Sat, 29 Sep 2001, nick@snowman.net wrote:
> >=20
> > > Ok, can you point me to a totally current root image?
> > > 	Nick
> > >=20
> > > On Sat, 29 Sep 2001, Richard Hirst wrote:
> > >=20
> > > > On Wed, Sep 26, 2001 at 08:56:08AM +0200, Jurriaan Kalkman wrote:
> > > > > >My c180 is now happily booting (current CVS kernel), however whe=
never I
> > > > > >try to ls some dirs (no all, this example is from /usr/bin) I ge=
t errors
> > > > > >along these lines
> > > > > >ls: memory exhausted
> > > >=20
> > > > I had this with 2.4.9, turned out I'd booted a root fs with old lib=
c6
> > > > installed.  When I rebooted using a current libc6 the problem went =
away.
> > > >=20
> > > > Richard
> > > >=20
> > >=20
> > >=20
> > >=20
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> >=20
>=20

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From: Michael S.Zick <mszick@pflash.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 720 - some progress
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Xref: news.gmane.org gmane.linux.ports.parisc:12381

Albert and other 720 folks;

I have been reading the directions (please forgive me for that)...

It looks (reads) as if it possible to return to the faulting instruction
(MFCTL in this case) without executing it.  If so, then adjusting the
instruction (and space) queues within the fault handler can be avoided;
also avoiding problems with finding the correct "following instruction"
address.

In general: 
When executing a group 3 fault (MFCTL), the PSW register is
copied into the IPSW register.  The "N" bit of the PSW (now in the IPSW)
is a copy of the "nullify bit" of the instruction PRECEDING the
instruction at iaoq[0].  The nullify bit of the instruction preceding the
MFCTL instruction was "zero" (or we wouldn't be here).
So rather than trying to adjust the addresses in the instruction/space
queues, it should be possible to just set the "N" bit of the IPSW (or its
representation in the interrupted registers structure).  Then, when the
finally makes it back to a "Return from Interrupt" instruction, our faked
"N" bit will be loaded into the PSW and the processor will skip the MFCTL
instruction which gets returned to.

Having zero experience with this processor and no way to test my idea; I
have done some "cut and paste" from the documentation - perhaps somebody
could check me on this idea.

Mike

PA-RISC 1.1 Architecture and Instruction Set Reference Manual
HP Part Number: 09740-90039
Printed in U.S.A. February 1994
Third Edition

- - - -

Trap:
  Traps include two sorts of possibilities: either the function requested by 
the current instruction cannot or should not be carried out, or system 
intervention is desired by the user before or after the instruction is 
executed. Examples of the first type include arithmetic operations that 
result in signed overflow and instructions executed with insufficient 
privilege for their intended function. Such instructions are normally not
re-executed. Examples of the second type include the debugging support traps. 
Traps are synchronous with respect to the instruction stream.

- - - -

Group 3:    
6 Instruction TLB miss fault/Instruction page fault
7 Instruction memory protection trap
30 Instruction debug trap
8 Illegal instruction trap
9 Break instruction trap
10 Privileged operation trap
11 Privileged register trap
12 Overflow trap
13 Conditional trap
14 Assist exception trap
15 Data TLB miss fault/Data page fault
16 Non-access instruction TLB miss fault
17 Non-access data TLB miss fault/Non-access data page fault
26 Data memory access rights trap
27 Data memory protection ID trap
28 Unaligned data reference trap

- - - -

Name	Privileged register trap (11)

Cause	An attempt is being made to write to a privileged space register or 	
access a privileged control register without being at the most privileged 
level (priv= 0)

Parameters    	IIR  The instruction causing the trap
IIA Queue    	Front  Address of the instruction causing the trap
		Back  Address of the following instruction

Notes    This interruption may be caused by the MOVE TO SPACE REGISTER, 
MOVE TO CONTROL REGISTER, or MOVE FROM CONTROL REGISTER 
instructions.

- - - -

Processor state is encoded in a 32-bit register called the Processor Status 
Word (PSW). When an interruption occurs, the old value of the PSW is saved in 
the Interruption Processor Status Word (IPSW) and usually all defined PSW 
bits are set to 0. The format of the PSW is shown in Figure 2-9.
 (copy is unreadable as e-mail ... "N" is bit 10dec.)
Figure 2-9. Processor Status Word

The PSW is set to the contents of the IPSW by the RETURN FROM INTERRUPTION 
and RETURN FROM INTERRUPTION AND RESTORE instructions. The interruption 
handler may restore the original PSW, modify selected bits, or may change the 
PSW to an entirely new value.

- - - -

N    Nullify. 
The current instruction is nullified when this bit is 1. This bit is set to 1 
by an instruction that nullifies the following instruction.

- - - -
I am ignoring the other 423 pages of the manual - which might be a mistake.
_ _ _ _

All in all, the way I read it - we can emulate the effect of an instruction 
prior to the MFCTL instruction that has its "nullify" bit set by setting the 
"N" bit in the IPSW.  With the effect that when the RFI is completed, the 
hardware will just skip the MFCTL which was just emulated.

Mike




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Subject: [parisc-linux] shm cache flush bug?
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Thomas,

> PS: If someone wants a testcase, which shows the shm cache flush bug,
> either use mm_test from libmm or mail me, I've written a small one.

I would be interested in this test case. I had to back out your fix.
It is definitely not the right way of fixing whatever problem you are
encountering. Your fix killed performance, particularly on large
cache machines, essentially returning us to a "flush everything at
all times" mode of operation.

Here are the reasons that your fix is incorrect:

1) There is an "old" way of handling cache flushing, and a "new" way.
flush_page_to_ram() is part of the "old" way, and is deprecated (see
Documentation/cachetlb.txt).  We've implemented the "new" way for the
parisc port, so any fix should be consistant with that design.

2) You made flush_page_to_ram() call flush_data_cache(), which flushes the
entire cache, rather than flushing the specified page. flush_page_to_ram()
is called in a variety of places, and your change caused the entire cache
to be flushed every time, so this kills performance.

I will note that the new method of flushing was primarily tested on the
sparc architecture, and since they have either a write-through cache, or a
very small write-back cache, they missed some things, some of which I have
already found and fixed on the parisc port.

The workaround fix for your problem will probably involve flushing a
specific page.  Since the problem you are seeing is related to System V
shared memory, the missing flush is probably missing from mm/shmem.c.
Possibly a call to flush_dcache_page() in shmem_nopage() in the two
locations where flush_page_to_ram() is called might fix the problem,
although I don't see a problem with that code.  Adding a flush there might
at least workaround the problem until the bug can be tracked to a real
root cause.  Let me know if you try that and whether or not it does fix
the problem.

The correct fix may be the same as the workaround, but could be due to
some other problem.  Your report seems to indicate a problem upon first
allocation of a shared memory page, but if it is instead a problem when
the second program attaches the shared memory, the problem could be due to
a bug in the address allocation code, perhaps creating a bad user alias
between processes.

John Marvin
jsm@fc.hp.com




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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux tsbogend
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On Sat, Sep 29, 2001 at 10:42:33AM -0600, Thomas Bogendoerfer wrote:
> Log message:
> we need to flush pages used inside the kernel and passed to user processes
> otherwise because of the virtual alias we get mixed writebacks.
> FIMXE: flush_data_cache() isn't a very well optimized function for this
> purpose

flush_dcache_page() is perhaps the function you are looking for?  I'm
not sure I understand what the problem is since you didn't post a diff.
I'll investigate more when I get back tomrrow.

-- 
Revolutions do not require corporate support.




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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: Re: [parisc-linux] 720 - some progress
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> It looks (reads) as if it possible to return to the faulting instruction
> (MFCTL in this case) without executing it.  If so, then adjusting the
> instruction (and space) queues within the fault handler can be avoided;
> also avoiding problems with finding the correct "following instruction"
> address.

Using the nullify method you talk about does work, but the normal
convention is to advance the pc queue (there are some performance
advantages, particularly in the case where the instruction we are
emulating is in the delay slot of a branch).  The problem you describe
finding the following instruction doesn't exist.  You are correct about
the space queue though, but only in the case for a delay slot in the
branch to the gateway page.  The correct method of advancing the queue is
the one that has been proposed in the various patches, i.e.:

	regs->iaoq[0] = regs->iaoq[1];
	regs->iaoq[1] += 4;

To be perfectly correct, this should be added:

	regs->iasq[0] = regs->iasq[1];

But, again, that last is only necessary if someone actually puts a mfctl
in the delay slot of the branch to the gateway page (a kernel call) and
since kernel calls are already provided, we know that no such thing
actually happens, nor is it likely to happen unless someone handcodes
their own kernel call. I would put the line in though.

Here is why there is not a problem advancing the queue as above:
the only way that "regs->iaoq[1] += 4" would do the wrong thing would
be if we were emulating a branch instruction. Since we know we are
emulating a mfctl instruction, this is not the case. Note that if
someone needs to emulate a branch instruction, computing the new
value of iaoq[1] would be part of that emulation.

John Marvin
jsm@fc.hp.com




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From: "Bjoern A. Zeeb" <bzeeb+hplinux@zabbadoz.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] puffin.external.hp.com,... unreachable through quest
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Hi,

after a report on nanog I tired to help to figure out why
puffin.external.hp.com, www.parisc-linux.org and others are not
reachable for some people out there.

It seems there is a problem with QUEST/HP in Atlanta or behind.

Traces to HP seem to be prevented by filters but even ping does not
work if I check this directly from QUEST router in Atlanta via
looking glass ( http://stat.qwest.net/flash/lg.cfm ).

--- trace from quest router in atlanta ---
traceroute to puffin.external.hp.com (192.25.206.4), 30 hops max, 40 byte packets
 1  atl-edge-17.inet.qwest.net (205.171.21.190)  0.514 ms  0.475 ms 0.469 ms
 2  65.112.33.30 (65.112.33.30)  1.460 ms  1.436 ms  1.425 ms
 3  * * *
--- ping from quest router in atlanta ---
PING puffin.external.hp.com (192.25.206.4): 56 data bytes
--- puffin.external.hp.com ping statistics ---
3 packets transmitted, 0 packets received, 100% packet loss
--- snipp ---

I do not directly see this problem because at the momenet I am comming
in via uunet but two other upstreams I checked here in Germany use
kpn/quest and thus cannot reach anything in parisc related in
192.25.206.0 :( (and most likely more).

All those who use kpn/quest or have it as an upstream seem to be
cut off from mailing lists/web/cvs ?? :((

It seems the problem has been there since Sep 25th.

Can anybody please try to solve the problem/get information about this
from other side (HP internal etc. ;) because even email-contacts from
whois do not work from what I got told :( and this seems to be one of
the bigger problems (when taking 5 days).

Trace back from puffin or www.parisc-linux.org to 65.112.33.30 might
help to better localize the problem (if there are no internal filters
in hp bbn that prevent traces)

Thanks in advance.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/





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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: Re: [parisc-linux] Cumulative patch for 720
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Hello,

Has anyone been able to apply this patch? I'm quite anxious to test it,
but patch doesn't like it. The first bit applies but then 5 HUNKs fail.

It might be that my MUA, or Jurij's MUA is mangling the patch. If you've
managed to get it working, could you perhaps reply to this message with
the patch attached? Thanks!

Regards,

Albert

On Sat, 29 Sep 2001, Jurij Smakov wrote:

> Hi!
>=20
> I've put together Jochen's patch of trap 18 and patch
> for trap 11, corrected according to Matthew's and Jochen's
> remarks, which will supposedly make all 720 people very=20
> happy :-). It compiles, at least.
>=20
> Jurij

<patch snipped>

--mP3DRpeJDSE+ciuQ
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-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see http://www.gnupg.org

iD8DBQE7tu4bDg+hOeRZtkMRArtmAJ9RqvWlj9A21aHmpetH0TJmGWvo2ACdHaAr
Lb2Ohgd6N2eQC+/XO2jOSzA=
=Qeuv
-----END PGP SIGNATURE-----

--mP3DRpeJDSE+ciuQ--




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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: shm cache flush bug?
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To: John Marvin <jsm@udlkern.fc.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:12387

On Sun, Sep 30, 2001 at 12:38:08AM -0600, John Marvin wrote:
> The workaround fix for your problem will probably involve flushing a
> specific page.  Since the problem you are seeing is related to System V

there is a flush_page_to_ram() at the right place.

I've tested following patch:

diff -u -r1.32 pgalloc.h
--- pgalloc.h	2001/09/06 09:44:12	1.32
+++ pgalloc.h	2001/09/30 12:13:57
@@ -17,6 +17,7 @@
 static inline void
 flush_page_to_ram(struct page *page)
 {
+	flush_kernel_dcache_page (page_address(page));
 }

That one fixes the problem, too. Is this patch something you would see
as the right thing to do ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux tsbogend
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Xref: news.gmane.org gmane.linux.ports.parisc:12388

On Sun, Sep 30, 2001 at 08:01:43AM +0100, Matthew Wilcox wrote:
> On Sat, Sep 29, 2001 at 10:42:33AM -0600, Thomas Bogendoerfer wrote:
> > Log message:
> > we need to flush pages used inside the kernel and passed to user processes
> > otherwise because of the virtual alias we get mixed writebacks.
> > FIMXE: flush_data_cache() isn't a very well optimized function for this
> > purpose
> 
> flush_dcache_page() is perhaps the function you are looking for?  I'm
> not sure I understand what the problem is since you didn't post a diff.

flush_kernel_dcache_page() works and it should even be the right fix.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: [parisc-linux] Re: shm cache flush bug?
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On Sun, Sep 30, 2001 at 02:39:28PM +0200, Thomas Bogendoerfer wrote:
> [...]

forgot my test program.

Thomas.


#include <sys/ipc.h>
#include <sys/shm.h>
#include <stdio.h>

#define SHMSIZE 32768*32

int main (int argc, char *argv[])
{
	int keyid;
	unsigned char *buf;
	int i;

	if ((keyid = shmget (IPC_PRIVATE, SHMSIZE, (SHM_R|SHM_W|IPC_CREAT))) == -1) {
		perror ("shmget");
		exit (1);
	}

	if ((buf = shmat (keyid, NULL, 0)) == ((void *)-1)) {
		perror ("shmat buf");
		exit (1);
	}

	printf ("filling buffer (%p)\n",buf);
	for (i = 0; i < SHMSIZE; i++) {
		buf[i] = i & 255;
		if (*(volatile unsigned char *)&buf[i] != (i & 255)) {
			printf ("failed at %d\n",i);
			exit (1);
		}
	}
	printf ("read back from original buffer (%p)\n",buf);
	for (i = 0; i < SHMSIZE; i++) {
		if (*(volatile unsigned char *)&buf[i] != (i & 255)) {
			printf ("failed at %d: is %02x should be %02x\n",i,*(volatile unsigned char *)&buf[i],i&255);
		}
	}
	shmdt (buf);
	shmctl (keyid, IPC_RMID, NULL);
	printf ("TEST passed\n");
	return 0;
}


-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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Subject: Re: [parisc-linux] Status of hp-ux binary compatibility?
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On Fri, Sep 28, 2001 at 12:35:26PM -0500, Nathan Neulinger wrote:
> My main question though - what's the status of hpux binary support? The 
> FAQ seems to indicate that some parisc binaries are already functional.
> 
> What is necessary to be done on the machine before I can run an HP 
> executable?

It might work, but it's probably bitrotten since nobody's tried it in
over a year.

-- 
Revolutions do not require corporate support.




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From: Jurij Smakov <jurij@lokmail.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Cumulative patch for 720
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> I've fiddled with your patch some more and I'm still having problems
> applying it to 2.4.9-pa27:
> 
> patching file linux/arch/parisc/kernel/traps.c
> Hunk #1 succeeded at 46 with fuzz 2.
> Hunk #2 FAILED at 277.
> Hunk #3 FAILED at 331.
> Hunk #4 FAILED at 375.
> Hunk #5 FAILED at 445.
> 4 out of 5 hunks FAILED -- saving rejects to file linux/arch/parisc/kernel/traps.c.rej
> 
> Could you perhaps put it on HTTP somewhere?
> 
> Regards,
> 
> Albert

Hi Albert and others!

I've just tested and it applies cleanly to the latest CVS source
(dated September 30th). Anyway, I found out, that I forgot to
change mm/fault.c in the original patch, so maybe it's good,
that You didn't apply it :-). The new version is at

http://www.theophys.kth.se/~jurijus/patches/720.patch

If someone applied the old version and could not get the kernel to 
compile (it complains about parisc_acctyp) just change 

static unsigned long
parisc_acctyp(unsigned long code, unsigned int inst)

to 

unsigned long
parisc_acctyp(unsigned long code, unsigned int inst)

in

arch/parisc/mm/fault.c

New version takes care of this automatically.

Best regards,

Jurij





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From: "Del-Grande, Diego {T-HA~Rotkreuz}" <DIEGO.DEL-GRANDE@Roche.COM>
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i'm a member of a hp 712 / 60 ...i want to install hppa-linux 0.9.2. i've burned a hppa-linux cd (0.9.2)...
because my mashine didn't built in a cdrom-drive I attached one external.
if i'm booting the cd i retrived the follow message...

Warning: kernel name doesn't end with 32 or 64... Guessing Annoyance: Firmaware does not support PDC_MODEL_CAPABILITIES call
32
Couldn't grok your kernel executable format
failed to load kernel

my firmware is 2.3 ... the newest!

for solving this problem i tried to boot witch e.g. boot scsi.2.0 IPL... I edited the Parameter 0/vmlinux in 0/vmlinux32... now i'm only get the message

Couldn't grok your kernel executable format
failed to load kernel

what is wrong? can you help me? for further informations about how to solve this problem ... thank you!

thanx for your answer...

best regards

del-grande diego




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> I've tested following patch:
>
> diff -u -r1.32 pgalloc.h
> --- pgalloc.h   2001/09/06 09:44:12     1.32
> +++ pgalloc.h   2001/09/30 12:13:57
> @@ -17,6 +17,7 @@
>  static inline void
>  flush_page_to_ram(struct page *page)
>  {
> +       flush_kernel_dcache_page (page_address(page));
>  }
>
> That one fixes the problem, too. Is this patch something you would see
> as the right thing to do ?
>
> Thomas.

No. flush_page_to_ram() is the old cache flushing interface. It is called
in a bunch of other places. Enabling it would wind up doing a lot of
redundant cache flushing.

> >
> > flush_dcache_page() is perhaps the function you are looking for?  I'm
> > not sure I understand what the problem is since you didn't post a diff.
>
> flush_kernel_dcache_page() works and it should even be the right fix.
>

flush_dcache_page() is the right interface to use in machine independent
code. It calls flush_kernel_dcache_page(), but it also has an additional
performance tweak that delays flushing if the mapping is not in place yet
(it sets a bit that causes the flush to happen when the translation is
mapped).  This avoids flushing in some circumstances.

I've tracked the bug down to root cause.  The root cause of the problem is
that shmem_getpage_locked() calls clear_highpage() for a page when it is
first allocated, without flushing the page.  The appropriate interface is
clear_user_highpage(), similar to what is done in do_anonymous_page() in
mm/memory.c.  However, clear_user_highpage() requires the user address,
and that would need to get passed down from shmem_nopage() through
shmem_getpage()/shmem_getpage_locked(). shmem_getpage() and
shmem_getpage_locked() get called in a few other places, so that change
starts to get a little ugly.  I decided to take the easy way out by adding
a flush_dcache_page() call after the call to clear_highpage(). Of course,
this change will need to be sold to Linus eventually, so we will probably
need to consult further to determine if this is an appropriate final fix.

Thomas, thank you for finding this bug and providing a test case.

John

Here is the patch that I committed to mm/shmem.c:

--- shmem.c.old	Mon Oct  1 03:01:47 2001
+++ shmem.c	Mon Oct  1 04:08:13 2001
@@ -377,6 +377,7 @@ repeat:
 		if (!page)
 			return ERR_PTR(-ENOMEM);
 		clear_highpage(page);
+		flush_dcache_page(page);
 		inode->i_blocks += BLOCKS_PER_PAGE;
 		add_to_page_cache (page, mapping, idx);
 	}




From - Thu Nov 08 21:19:31 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] I-Cache flushing
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On the subject of cache flushing... cachetlb.txt says:

  void flush_icache_range(unsigned long start, unsigned long end)
        When the kernel stores into addresses that it will execute
        out of (eg when loading modules), this function is called.

        If the icache does not snoop stores then this routine will need
        to flush it.

This implies to me that our implementation of flush_icache_range must
flush the relevant range of the dcache first.  I assume it doesn't
currently do that since our diff vs linus' tree for module.c is:

diff -urNX dontdiff linux-249/kernel/module.c linux-249-pa/kernel/module.c
--- linux-249/kernel/module.c   Mon Sep  3 15:20:34 2001
+++ linux-249-pa/kernel/module.c        Fri Aug 17 00:12:22 2001
@@ -510,8 +510,18 @@
 
        /* On some machines it is necessary to do something here
           to make the I and D caches consistent.  */
+#ifdef __hppa__
+       /* I guess we have a problem here because copy_from_user() has left
+        * the new module code in the data cache, so we need to flush it
+        * through.  Our copy_from_user() used to do cache flushing, but 
+        * it has been removed.  Puzzled as to why other archs might want
+        * to flush icache at this point.  rhirst@linuxcare.com
+        */
+       flush_data_cache();
+#endif
        flush_icache_range((unsigned long)mod, (unsigned long)mod + mod->size);
 
+       /* Update module references.  */
        mod->next = mod_tmp.next;
        mod->refs = NULL;
 
I suspect the right fix would be to change:

#define flush_icache_range flush_kernel_icache_range_asm

to:

static inline void flush_icache_range(unsigned long start, unsigned long end)
{
	flush_kernel_icache_range_asm(start, end);
	flush_kernel_dcache_range_asm(start, end);
}

Comments?

-- 
Revolutions do not require corporate support.




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From: Nathan Neulinger <nneul@umr.edu>
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Subject: Re: [parisc-linux] Status of hp-ux binary compatibility?
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Matthew Wilcox wrote:
> 
> On Fri, Sep 28, 2001 at 12:35:26PM -0500, Nathan Neulinger wrote:
> > My main question though - what's the status of hpux binary support? The
> > FAQ seems to indicate that some parisc binaries are already functional.
> >
> > What is necessary to be done on the machine before I can run an HP
> > executable?
> 
> It might work, but it's probably bitrotten since nobody's tried it in
> over a year.

Yuck... That'd be most unfortunate since that is the primary reason I'm
looking at parisc-linux at the moment.

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216




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I just built and upgrade to 2.4.9-pa27 and with it, as well as the 2.4.0
base install, I get nothing but segmentation faults whenever trying to
execute any HP-UX executable.

-- Nathan

> -----Original Message-----
> From: Matthew Wilcox [mailto:willy@debian.org]
> Sent: Sunday, September 30, 2001 11:19 PM
> To: Nathan Neulinger
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Status of hp-ux binary compatibility?
> 
> 
> On Fri, Sep 28, 2001 at 12:35:26PM -0500, Nathan Neulinger wrote:
> > My main question though - what's the status of hpux binary 
> support? The 
> > FAQ seems to indicate that some parisc binaries are already 
> functional.
> > 
> > What is necessary to be done on the machine before I can run an HP 
> > executable?
> 
> It might work, but it's probably bitrotten since nobody's tried it in
> over a year.
> 
> -- 
> Revolutions do not require corporate support.
> 




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On Mon, Oct 01, 2001 at 07:47:45AM -0500, Nathan Neulinger wrote:
> Yuck... That'd be most unfortunate since that is the primary reason I'm
> looking at parisc-linux at the moment.

what application specifically are you looking at running?  We only ever
implemented a few of the hundreds of hpux syscalls.

-- 
Revolutions do not require corporate support.




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In particular - flexlm. 

We have a ton of licensed products served off an old 715, and relicensing
them to move the license server will be a nightmare. What I'd like to do is
run the lmgrd+vendor-daemon on a parisc-linux box and modload a syscall
replacement that lies about the hostid to this process.

But for testing, I've just tried very simple programs - cal, yes, echo, and
a staticly linked hello world. All of them segfault right after execution. 

As far as I know, the only system calls out of the ordinary the flexlm stuff
should use are file locking and perhaps some of the ioctl stuff for getting
interface address, but I figured on tracing to find out exactly what it's
doing. 

-- Nathan

> -----Original Message-----
> From: Matthew Wilcox [mailto:willy@debian.org]
> Sent: Monday, October 01, 2001 8:26 AM
> To: Nathan Neulinger
> Cc: Matthew Wilcox; parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Status of hp-ux binary compatibility?
> 
> 
> On Mon, Oct 01, 2001 at 07:47:45AM -0500, Nathan Neulinger wrote:
> > Yuck... That'd be most unfortunate since that is the 
> primary reason I'm
> > looking at parisc-linux at the moment.
> 
> what application specifically are you looking at running?  We 
> only ever
> implemented a few of the hundreds of hpux syscalls.
> 
> -- 
> Revolutions do not require corporate support.
> 




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FYI, here's one of the oops:

do_page_fault() pid=481 command='cal' type=6 address=0xc0000007
vm_start = 0x40001000, vm_end = 0x40002000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111
r0-3     00000000 c0000000 0000274f faf00000
r4-7     00000001 faf001e8 faf00194 00000000
r8-11    faf00280 000aa810 000b8910 000b86f0
r12-15   00000000 ffffffff 000b81b0 00000000
r16-19   00000000 00017800 00017800 4024c57c
r20-23   0000000b 401b071c 00000039 00000000
r24-27   00000000 00000000 faf02290 40001448
r28-31   00000000 00000000 faf02300 0000286f
sr0-3    00000725 00000000 00000000 00000725
sr4-7    00000725 00000725 00000725 00000725

IASQ: 00000725 00000725 IAOQ: c0000007 c000000b
 IIR: e02025b2    ISR: 00000725  IOR: faf0226c
 CPU:        0   CR30: 2734c000 CR31: 10388000
 ORIG_R28: 000b8950

do_page_fault() pid=482 command='echo' type=6 address=0xc0000007
vm_start = 0x40001000, vm_end = 0x40002000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111
r0-3     00000000 c0000000 000024df faf00000
r4-7     00000001 faf001ec faf00198 00000000
r8-11    faf00280 000aa810 000b8910 000b8850
r12-15   00000000 ffffffff 000b8370 00000000
r16-19   00000000 00017800 00017800 4024c57c
r20-23   0000000b 401b071c 00000039 00000000
r24-27   00000000 00000000 faf02290 40001150
r28-31   00000000 00000000 faf02300 000025ff
sr0-3    00000004 00000000 00000000 00000004
sr4-7    00000004 00000004 00000004 00000004

IASQ: 00000004 00000004 IAOQ: c0000007 c000000b
 IIR: e02025b2    ISR: 00000004  IOR: faf0226c
 CPU:        0   CR30: 2734c000 CR31: 10388000
 ORIG_R28: 000b84b0

-- Nathan



> -----Original Message-----
> From: Neulinger, Nathan 
> Sent: Monday, October 01, 2001 8:31 AM
> To: 'Matthew Wilcox'
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: RE: [parisc-linux] Status of hp-ux binary compatibility?
> 
> 
> In particular - flexlm. 
> 
> We have a ton of licensed products served off an old 715, and 
> relicensing them to move the license server will be a 
> nightmare. What I'd like to do is run the lmgrd+vendor-daemon 
> on a parisc-linux box and modload a syscall replacement that 
> lies about the hostid to this process.
> 
> But for testing, I've just tried very simple programs - cal, 
> yes, echo, and a staticly linked hello world. All of them 
> segfault right after execution. 
> 
> As far as I know, the only system calls out of the ordinary 
> the flexlm stuff should use are file locking and perhaps some 
> of the ioctl stuff for getting interface address, but I 
> figured on tracing to find out exactly what it's doing. 
> 
> -- Nathan
> 
> > -----Original Message-----
> > From: Matthew Wilcox [mailto:willy@debian.org]
> > Sent: Monday, October 01, 2001 8:26 AM
> > To: Nathan Neulinger
> > Cc: Matthew Wilcox; parisc-linux@lists.parisc-linux.org
> > Subject: Re: [parisc-linux] Status of hp-ux binary compatibility?
> > 
> > 
> > On Mon, Oct 01, 2001 at 07:47:45AM -0500, Nathan Neulinger wrote:
> > > Yuck... That'd be most unfortunate since that is the 
> > primary reason I'm
> > > looking at parisc-linux at the moment.
> > 
> > what application specifically are you looking at running?  We 
> > only ever
> > implemented a few of the hundreds of hpux syscalls.
> > 
> > -- 
> > Revolutions do not require corporate support.
> > 
> 




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On Mon, Oct 01, 2001 at 08:31:07AM -0500, Neulinger, Nathan wrote:
> But for testing, I've just tried very simple programs - cal, yes, echo, and
> a staticly linked hello world. All of them segfault right after execution. 

It'd be useful to know what address they segfault at.  My current
suspicion is the stack position changes have broken it, but it may be
something completely different.

-- 
Revolutions do not require corporate support.




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Nathan,

hp-ux compatibility is definitely broken. It probably wouldn't take too
much effort to get it back to where it was before, however the best we
ever did was to run some simple text based programs that were linked
archive (-Wl,-aarchive). We didn't even have shared libraries working.

Just out of curiosity, what type of HP-UX binaries did you want to run?
If it is 3D graphics based, or it uses a bunch of HP-UX proprietary
kernel calls, ioctl's, etc. it isn't likely to work anytime soon ...

John Marvin
jsm@fc.hp.com




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> -----Original Message-----
> From: John Marvin [mailto:jsm@udlkern.fc.hp.com]
> Sent: Monday, October 01, 2001 9:36 AM
> To: nneul@umr.edu
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: Status of hp-ux binary compatibility?
> 
> 
> Nathan,
> 
> hp-ux compatibility is definitely broken. It probably 
> wouldn't take too
> much effort to get it back to where it was before, however the best we
> ever did was to run some simple text based programs that were linked
> archive (-Wl,-aarchive). We didn't even have shared libraries working.

Would "gcc -static" be sufficient? Oh... no shared libs either? ick. I
suppose that means that anything linked against /usr/lib/libc.1 won't work.
Bummer. 

Y'all might want to clarify the FAQ, cause it sure hints at a different
story about what the status is. 

> Just out of curiosity, what type of HP-UX binaries did you 
> want to run?
> If it is 3D graphics based, or it uses a bunch of HP-UX proprietary
> kernel calls, ioctl's, etc. it isn't likely to work anytime soon ...

I sent this in another note, but I'm wanting to get flexlm running.

>From what you're saying above, sounds like it might be less work to
relicense, even though that's a pain in the butt. 

-- Nathan




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> them to move the license server will be a nightmare. What I'd like to do is
> run the lmgrd+vendor-daemon on a parisc-linux box and modload a syscall
> replacement that lies about the hostid to this process.

Thats now a criminal offence in the USA. You are circumventing digital
rights management. The DMCA has no exclusion for actually having the rights
to do so, or exemption swhen you have the license




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When you get down to it, so is making any change to how the software is
installed. I can't even remember the last time we installed a package on
unix the way the vendor insisted it be installed. 

-- Nathan

> -----Original Message-----
> From: Alan Cox [mailto:alan@lxorguk.ukuu.org.uk]
> Sent: Monday, October 01, 2001 10:34 AM
> To: nneul@umr.edu
> Cc: willy@debian.org; parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Status of hp-ux binary compatibility?
> 
> 
> > them to move the license server will be a nightmare. What 
> I'd like to do is
> > run the lmgrd+vendor-daemon on a parisc-linux box and 
> modload a syscall
> > replacement that lies about the hostid to this process.
> 
> Thats now a criminal offence in the USA. You are circumventing digital
> rights management. The DMCA has no exclusion for actually 
> having the rights
> to do so, or exemption swhen you have the license
> 




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On Mon, Oct 01, 2001 at 08:35:52AM -0500, Neulinger, Nathan wrote:
> IASQ: 00000725 00000725 IAOQ: c0000007 c000000b
>  IIR: e02025b2    ISR: 00000725  IOR: faf0226c
>  CPU:        0   CR30: 2734c000 CR31: 10388000
>  ORIG_R28: 000b8950

Interesting.  It's trying to execute code in userspace at 0xc000'0000 and
up.  This is very strange.  I'll investigate this today.

-- 
Revolutions do not require corporate support.




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>>>>> "Nathan" == Neulinger, Nathan <nneul@umr.edu> writes:

Nathan> But for testing, I've just tried very simple programs - cal,
Nathan> yes, echo, and a staticly linked hello world. All of them
Nathan> segfault right after execution.

Nathan> As far as I know, the only system calls out of the ordinary
Nathan> the flexlm stuff should use are file locking and perhaps some
Nathan> of the ioctl stuff for getting interface address, but I
Nathan> figured on tracing to find out exactly what it's doing.

I really don't think it should be that much work to get the basics
going, it might be a bit more to get more advanced applications up and
running.

I don't know anything really about the implementation of flexlm, but
I'd say it should be doable with a limited effort. Time to get out
that compiler and debugger and get hacking ;-)

Cheers
Jes




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> I really don't think it should be that much work to get the basics
> going, it might be a bit more to get more advanced applications up and
> running.
> 
> I don't know anything really about the implementation of flexlm, but
> I'd say it should be doable with a limited effort. Time to get out
> that compiler and debugger and get hacking ;-)
> 
> Cheers
> Jes

As far as I know, flexlm should be a pretty basic socket server, nothing
fancy, other than it's retrieval of the HP host id, which I presume is just
a syscall of some sort. Unfortunately, it does require use of shared lib
libc since that's how it was linked. 

-- Nathan 




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>>>>> "Nathan" == Neulinger, Nathan <nneul@umr.edu> writes:

Nathan> As far as I know, flexlm should be a pretty basic socket
Nathan> server, nothing fancy, other than it's retrieval of the HP
Nathan> host id, which I presume is just a syscall of some
Nathan> sort. Unfortunately, it does require use of shared lib libc
Nathan> since that's how it was linked.

Hmmm, admittedly I know little about the HPUX shared linker. However
even then I don't think it should be too big of a problem, provided
Linux/HPPA is able to map binaries at the same place as HPUX.

Jes




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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: [parisc-linux] woody install on 720/50
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Hello all,

After applying Jurij's latest patch, and creating a new Debian bootdisk
lifimage with it, I booted it up and tried the Debian install again.

I tried a CD-ROM install first, but the installer refused to mount my
CD-ROM for some reason, even though it was detected as a possible device
to boot from.

Next I tried a network install using my i386 box (with co-ax network
card to connect to the 720) as a web server. According to the
access.log, the drivers.tgz and rescue.bin very retrieved without
problems. When it tried to extract the rescue.bin, it croaked with a=20
message saying "Bad address." When I tried to retrieve the images a
second time, the installer croaked.

The box still responds to pings, but not much else.

Any ideas on the "Bad address" problem?

Regards,

Albert

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Thomas Bogendoerfer wrote:

>
>bug in the sti code. It doesn't use the sti rom from the card, but from
>the onboard sti rom. I've played with my 715/100 with an extra HCRX and
>had the same problem. I've disabled the HCRX by removing the connection
>between mainboard and HCRX, then the kernel from the 0.9.2 crashed after
>starting the init from the install ramdisk (Kernel Fault: Code=15) :-(
>
>Hopefully I'll get some sti hacking done during the upcoming Linux
>Hackermeeting in Oldenburg coming weekend.
>
>Thomas.
>

Hi,

I'm glad i'm not the only one with this problem. And even someone knows 
the solution for the problem. ;-). I also disabled my add-on card the 
same way, and then the sti-stuff worked quite fine. But it would be 
cooler to use the second card, too.
But you already have a patch? I can only help with testing and a little 
bit of debugging as all of my fingers are thumbs ;-)

So long,
        Ruediger






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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: [parisc-linux] Second Draft of the help for the kernel options
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Hi all,

	Once again, I ask you to verify what I wrote and only God knows how
important it is to re-read this file b/c it is useful and I made it so
many mistakes for sure :)

	I added the comments of the first draft (Thanks to Grant) and CPU type
help too. I do not really like the lists. If you have any better idea,
please let me know.

Thanks, Thomas.
ESIEE Team

PS: I would like to know if I can put the PA-RISC/Linux Boot HOWTO into
stable state??

Text to add in Documentation/ Configure.help
======================================================================================


Processor family
CONFIG_PA7100
  In this section, you will find enough informations to set correctly 
  your CPU type option. Nevertheless, if you need more, you can see 
  all the hardware content of your box at http://hwdb.parisc-linux.org.
  
  If you select the PA7000/PA7100 option, your box must be one of these 
  listed below: 705/35, 710/50, 715/33, 715/50, 715/75, 720/50, 725/50, 
  725/75, 730/66, 735/99, 735/125, 750/66, 755/99.

  If you select the PA7200 option, your box must be one of these listed 
  below: C100, C110, D250, D350, D260, D360, J200, J210, K100, K200, 
  K210, K220, K400, K410, K420.

  If you choose the PA7100LC/PA7300LC option then your box is 715/64, 
  715/80, 715/100, 725/100, A180, B132L(+), B160L(+), B180L(+), C160L, 
  C180L, D200, D210, D220, D230, D300, D310, D320 or D330. There are 
  also some systems from the E series but there are not yet supported.

  Finally, PA8x00 is the good choice for all new stuff like A500, B1000,
  B2000, B2600, C200+, C240+, C3000, C3600, J282, J2240, J5000, J6000, 
  J6700, J7000, K250, K260, K270, K370, K450, K460, K470, K570, L1000, 
  L2000, L3000, N4000, V2200, V2250, V2500.

  Now, you should be sure of which CPU type. If not, please send a mail 
  to parisc-linux@lists.parisc-linux.org.

64-bit kernel
CONFIG_PARISC64
  The 64-bit kernel support give the capability of using 64-bit CPU to 
  the kernel. This is useful for PA8X00 series minimum. Note that even
  if your kernel is 64-bit, your userspace will be in 32-bit.

GSC/Gecko bus support
CONFIG_GSC
  This option gives to the kernel the capability to manage GSC buses 
  of HP computers. More than that, if you have systems with GSC slots, 
  LASI, EISA or Dino (GSCtoPCI) bridge, this option is also compulsory 
  if you want it working.

LASI I/O support
CONFIG_GSC_LASI
  LASI is one type of controller embedded in HP workstations and 
  servers. It controls some I/O devices like PS2 keyboard and mouse, 
  audio or serial interface. The best advice is to keep it in your 
  configuration, if you are not sure about that point.

WAX support
CONFIG_GSC_WAX
  WAX is an EISA bus converter for PA-RISC systems. It can be found in
  older systems like B/C/D/R-class machines. This option enables this 
  converter. Note that it is under heavy development. Thus, it may not 
  be working.

GSCtoPCI/DINO PCI support
CONFIG_GSC_DINO
  By selecting this item, you add PCI support for Dino PCI Host Bus
bridge.
  PCI devices are sometimes embedded in GSC add-on cards (aka "card-mode 
  Dino"). Note that only recent systems need it like B132L, C200. For
more
  information, go to http://hwdb.parisc-linux.org.

Chassis LCD and LED support
CONFIG_CHASSIS_LCD_LED
  HP boxes have LED or LCD indicator on the front in order to show some 
  basic information like status for example. With this enabled, you can
  have this help also available.

Kernel support for SOM binaries
CONFIG_BINFMT_SOM
  SOM (Spectrum Object Model) is a format for libraries and executables 
  used by HP. Saying Y here will enable your kernel to run SOM binaries.
  As a result, you could run HP-UX executables. This capability is still
  in development. Then, you use this functionality with no warranty!

LASI/ASP builtin parallel-port
CONFIG_PARPORT_GSC
  If you have a LASI or ASP controller in your HP box and you want to
use 
  the parallel port, a good idea will be to keep this item in your
  configuration.

HP Lasi SCSI support
CONFIG_SCSI_LASI
  If you have an old HP system like a 712, you should keep this on.
  This will enable your SCSI controller and give you access to 
  SCSI devices. For quite recent computers, you may be able to turn 
  this off. 

Lasi ethernet
CONFIG_LASI_82596
  This option adds the driver for one of most used network chips 
  integrated in LASI chip. It is also known as Apricot driver. It is 
  based on an Intel 82596 chip. If you do not know what is your 
  hardware, it is strongly recommended to keep is on.

Support for Lasi/Dino PS2 port
CONFIG_GSC_PS2
  The PS2 connector of the HP boxes looks like a standard PC connector.
  If you want to use the PS2 keyboard and mouse, you must keep this on.
  Anyway, some HP workstations and servers have this kind of interfaces
  but not the ports you can plug in your devices. Thus, the best thing
  to do anyway is to let this choice turned on.

serial port on GSC support
CONFIG_SERIAL_GSC
  For most of the HP servers and for some workstations that do not have 
  its video card supported yet, you will need to get the console output
  via the serial port. As a result, you could interact with the box via
  a VT or a serial cable link to another computer.

STI console
CONFIG_STI_CONSOLE
  The Standard Text Interface could correspond to the VGA support for
PC.
  HP developped STI as a mechanism between CPU and graphics devices. 
  Thus, if you want your console on your screen like any other PC linux
  does, leave this option on.
  If you do not have any success with your console output, we advice you
  to check if you have checked the STI frame buffer option, aka 
  CONFIG_FB_STI, in your configuration. Some models are happy when the 
  two of them are enabled and some others prefer to have only this one 
  only.
  Anyway, if you failed to have the screen output, you can switch to the 
  serial console output.

PA Harmony audio driver
CONFIG_SOUND_HARMONY
  This option enables the audio part of the LASI controller. Since it is 
  standard to all the boxes, this option should be set for any 
  workstation except the newest ones. Servers do not really need audio. 
  Then, you can unset it.




From - Thu Nov 08 21:19:33 2018
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Hello,

On Tue, 02 Oct 2001, Hamish Moffatt wrote:

> On Mon, Oct 01, 2001 at 05:54:25PM +0200, Albert Strasheim wrote:
> > After applying Jurij's latest patch, and creating a new Debian bootdisk
> > lifimage with it, I booted it up and tried the Debian install again.
>=20
> Hmm, is that easy to do? I need to build a new kernel from the CVS
> sources for my D350, and it would be easiest to build a new CD
> to boot from rather than to boot the new kernel over the network.

I've think I've tried to convey the following command to you in about 3
different threads across 2 mailing lists :-)

Get palo-latest.tar.gz (about 62 KB) from puffin.external.hp.com,
compile that, cross-compile your kernel and then run the following:

(linux/ contains the kernel and palo/ contains the bootloader)

palo/palo/palo -f /dev/null -k linux/vmlinux -r root.bin -s lifimage \
  -b palo/iplboot -c "0/linux HOME=3D/ root=3D/dev/ram initrd=3D0/ramdisk"

What this does is the following:

palo takes the kernel (vmlinux (with Jurij's patches in my case)), the
latest Debian rootdisk (root.bin), puts them together and creates a
lifimage for you to boot via rbootd or tftpd (depending on your model).

Tada!

Have fun,

Albert

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Hi all:

I have a couple of 735/99s which I'd like to run linux on, but have a
problem: they only have FDDI networking, which isn't compatible with my
network. 

I would really like to be able to run at least 10baseT on these boxes. So,
the question is, can I run an ISA network card in the EISA slot? I tried a
little while back to compile a driver using the normal Linux source, but it
was wrapped inside an #ifdef CONFIG_PCI or CONFIG_ISA, while my box has (I
assume) CONFIG_EISA defined. I know that on peecees EISA is a
backwards-compatible extension of ISA, is this the case on the PARISC line?
And if so, can I change the source of the driver to be #ifdef CONFIG_ISA ||
CONFIG_EISA (or whatever the syntax is)?

Any pointers would be appreciated (and keep up the good work!!).

Cheers,
Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - 4069
ph:  (07) 3327 4685     fax:  (07) 3327 4455
email:  m.vandewerken@cat.csiro.au




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>From liboe@linux  Sat Jun 17 01:08:25 2000
From: Michael S. Zick <mszick@Wolf-01>
To: "John Marvin" <jsm@udlkern.fc.hp.com>
Subject: Re: [parisc-linux] 720 - some progress
Date: Mon, 1 Oct 2001 11:06:07 -0500
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John;

Thanks a lot for the explanation - I am not surprised that the hardware
is more complex in its operation than the documentation tries to describe.
I have left the full text of your explanation attached so that future
readers of the mailing list archives don't get "half the story".

The ability to NOT EXECUTE the instruction returned to from a fault handler
might come in handy to somebody, someday.

What I was concerned about was the chance that the instruction addressed
by iaoq[1] was a branch (or taken conditional branch) instruction.  

Which, as you point out, could only happen if the MFCTL instruction was 
in the delay slot of a branch instruction.  (Has the compiler been told to
prohibit MFCTL in the delay slot? Not relavent here.)

With the description given in the documentation, then the queue state 
returned would have to be:

regs->iaoq[0] == branch instruction address
regs->iaoq[1] == target instruction address

I.E: That the hardware instruction address prediction was done prior to the
point in the hardware the address queue snapshot is taken on a fault.

The point you make describes instruction address prediction being done
after the point in the hardware flow that the address queue snapshot is
taken.

I.E:
regs->iaoq[0] == branch instruction address
regs->iaoq[1] == branch instruction address + 4

Is a just fine thing to do - the branch instruction will be executed with
the result that whatever was pointed to by iaoq[1] would be replaced by the 
target address (or ignored) in the process.

Certainly a complexity beyond printed documentation.
Anywho - its in the mail archives now for anyone that needs the
information.

Again, Thanks for the extra effort on these details.
Mike

> Date: Sunday, September 30, 2001 2:12 AM
> 
> > It looks (reads) as if it possible to return to the faulting instruction
> > (MFCTL in this case) without executing it.  If so, then adjusting the
> > instruction (and space) queues within the fault handler can be avoided;
> > also avoiding problems with finding the correct "following instruction"
> > address.
> 
> Using the nullify method you talk about does work, but the normal
> convention is to advance the pc queue (there are some performance
> advantages, particularly in the case where the instruction we are
> emulating is in the delay slot of a branch).  The problem you describe
> finding the following instruction doesn't exist.  You are correct about
> the space queue though, but only in the case for a delay slot in the
> branch to the gateway page.  The correct method of advancing the queue is
> the one that has been proposed in the various patches, i.e.:
> 
> 	regs->iaoq[0] = regs->iaoq[1];
> 	regs->iaoq[1] += 4;
> 
> To be perfectly correct, this should be added:
> 
> 	regs->iasq[0] = regs->iasq[1];
> 
> But, again, that last is only necessary if someone actually puts a mfctl
> in the delay slot of the branch to the gateway page (a kernel call) and
> since kernel calls are already provided, we know that no such thing
> actually happens, nor is it likely to happen unless someone handcodes
> their own kernel call. I would put the line in though.
> 
> Here is why there is not a problem advancing the queue as above:
> the only way that "regs->iaoq[1] += 4" would do the wrong thing would
> be if we were emulating a branch instruction. Since we know we are
> emulating a mfctl instruction, this is not the case. Note that if
> someone needs to emulate a branch instruction, computing the new
> value of iaoq[1] would be part of that emulation.
> 
> John Marvin
> jsm@fc.hp.com
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux





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From: Jochen Friedrich <jochen@scram.de>
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Subject: Re: [parisc-linux] The 720/50 saga continues...
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Hi Jurij,

> down_read(&mm->mmap_sem);
> vma = find_vma_prev(mm, address, &prev_vma);
>

I was roughly thinking about something like this (completely untested!!!):

case 18:
if (in_interrupt() || !mm)
        goto pagefault; /* shouldn't happen */

/* FIXME: do propper locking here */

pgd = pgd_offset(mm, address);        /* page directory */
if (pgd_none(pgd) || pgd_bad(pgd))
        goto pagefault; /* expandable stack etc */

pmd = pmd_offset(pgd, address);       /* middle page directory */
if (pmd_none(pmd) || pmd_bad((pmd))
        goto pagefault; /* expandable stack etc */

pte = pte_offset(pmd, address);       /* page table entry */
if (pte_none(pte))
        goto pagefault; /* expandable stack etc */

if (!pte_present(pte))  /* is this test sufficient? */
        goto pagefault; /* page not loaded */

acc_type = parisc_acctyp(code,regs->iir);

if ((acc_type & VM_WRITE) && (!(pte_write(pte))))
	goto pagefault; /* Write protected access */

if ((acc_type & VM_READ) && (!(pte_read(pte))))
	goto pagefault; /* Read protected access */

if ((acc_type & VM_EXEC) && (!(pte_exec(pte))))
	goto pagefault; /* Exec protected access */

/* fall through to case 28 */

Does this make sense?

Cheers,
Jochen







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From: Jurij Smakov <jurij@lokmail.net>
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> After applying Jurij's latest patch, and creating a new Debian bootdisk
> lifimage with it, I booted it up and tried the Debian install again.
> 
> I tried a CD-ROM install first, but the installer refused to mount my
> CD-ROM for some reason, even though it was detected as a possible device
> to boot from.
> 
> Next I tried a network install using my i386 box (with co-ax network
> card to connect to the 720) as a web server. According to the
> access.log, the drivers.tgz and rescue.bin very retrieved without
> problems. When it tried to extract the rescue.bin, it croaked with a 
> message saying "Bad address." When I tried to retrieve the images a
> second time, the installer croaked.
> 
> The box still responds to pings, but not much else.
> 
> Any ideas on the "Bad address" problem?
> 
> Regards,
> 
> Albert

Hi!

Would You consider first installing with some kernel, that works for sure
and then trying the one with the proposed patch? Otherwise, there are
too many unknowns in the equation :-). I know, the patched kernel compiles,
but since I don't have access to a 720 machine, I could not test it.

Cheers,

Jurij.










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Hi!

I get segfaults from "mount", when I try to mount a non-existent
device, like

># mount /dev/fd0 /floppy
Segmentation fault

The failure is reported to be in strncmp in glibc, but it looks
like it is just trying to dereference a null pointer, passed
from somewhere else (trap 15 with zero IOR). If someone is 
experiencing similar behaviour, I can look further into it.

Also, I've tried looking at todo list to find something to work on...
It seems rather outdated and some tasks in it seem to be already
completed (like unaligned trap handler, etc.). So, where should
I direct my efforts? What is the part of parisc-linux project, which
needs immediate attention? ;-).

Cheers,

Jurij.







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[skipped]
> Processor family
> CONFIG_PA7100
>   In this section, you will find enough informations to set correctly 
>   your CPU type option. Nevertheless, if you need more, you can see 
>   all the hardware content of your box at http://hwdb.parisc-linux.org.
>   
>   If you select the PA7000/PA7100 option, your box must be one of these 
>   listed below: 705/35, 710/50, 715/33, 715/50, 715/75, 720/50, 725/50, 
>   725/75, 730/66, 735/99, 735/125, 750/66, 755/99.
> 
>   If you select the PA7200 option, your box must be one of these listed 
>   below: C100, C110, D250, D350, D260, D360, J200, J210, K100, K200, 
>   K210, K220, K400, K410, K420.
> 
>   If you choose the PA7100LC/PA7300LC option then your box is 715/64, 
>   715/80, 715/100, 725/100, A180, B132L(+), B160L(+), B180L(+), C160L, 
>   C180L, D200, D210, D220, D230, D300, D310, D320 or D330. There are 
>   also some systems from the E series but there are not yet supported.
> 
>   Finally, PA8x00 is the good choice for all new stuff like A500, B1000,
>   B2000, B2600, C200+, C240+, C3000, C3600, J282, J2240, J5000, J6000, 
>   J6700, J7000, K250, K260, K270, K370, K450, K460, K470, K570, L1000, 
>   L2000, L3000, N4000, V2200, V2250, V2500.
> 
>   Now, you should be sure of which CPU type. If not, please send a mail 
>   to parisc-linux@lists.parisc-linux.org.
[skipped]

Hi!

Minor note: 712 models are not mentioned anywhere.

Best regards,

Jurij.







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From: Thomas Marteau <marteaut@esiee.fr>
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Jurij Smakov wrote:
> 
> Hi!
> 
> I get segfaults from "mount", when I try to mount a non-existent
> device, like
> 
> ># mount /dev/fd0 /floppy
> Segmentation fault

On my B132L, I have the same behaviour.
> 
> Also, I've tried looking at todo list to find something to work on...
> It seems rather outdated and some tasks in it seem to be already
> completed (like unaligned trap handler, etc.). So, where should
> I direct my efforts? What is the part of parisc-linux project, which
> needs immediate attention? ;-).
> 
I do not know what the developers want but I can say that driver
improvement could be good.
Anyway, if you want to find something to do, the best place to dig is
http://bugs.parisc-linux.org/ :)

Regards, Thomas.
ESIEE Team




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On Tue, Oct 02, 2001 at 04:44:26AM -0400, Jurij Smakov wrote:
> [skipped]
> > Processor family
> > CONFIG_PA7100
> >   In this section, you will find enough informations to set correctly 
> >   your CPU type option. Nevertheless, if you need more, you can see 
> >   all the hardware content of your box at http://hwdb.parisc-linux.org.
> >   
> >   If you select the PA7000/PA7100 option, your box must be one of these 
> >   listed below: 705/35, 710/50, 715/33, 715/50, 715/75, 720/50, 725/50, 
> >   725/75, 730/66, 735/99, 735/125, 750/66, 755/99.
> > 
> >   If you select the PA7200 option, your box must be one of these listed 
> >   below: C100, C110, D250, D350, D260, D360, J200, J210, K100, K200, 
> >   K210, K220, K400, K410, K420.
> > 
> >   If you choose the PA7100LC/PA7300LC option then your box is 715/64, 
> >   715/80, 715/100, 725/100, A180, B132L(+), B160L(+), B180L(+), C160L, 
> >   C180L, D200, D210, D220, D230, D300, D310, D320 or D330. There are 
> >   also some systems from the E series but there are not yet supported.
> > 
> >   Finally, PA8x00 is the good choice for all new stuff like A500, B1000,
> >   B2000, B2600, C200+, C240+, C3000, C3600, J282, J2240, J5000, J6000, 
> >   J6700, J7000, K250, K260, K270, K370, K450, K460, K470, K570, L1000, 
> >   L2000, L3000, N4000, V2200, V2250, V2500.
> > 
> >   Now, you should be sure of which CPU type. If not, please send a mail 
> >   to parisc-linux@lists.parisc-linux.org.
> [skipped]
> 
> Hi!
> 
> Minor note: 712 models are not mentioned anywhere.

Neither is the C360

-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




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Hello,

On Tue, 02 Oct 2001, Jurij Smakov wrote:

> Would You consider first installing with some kernel, that works for sure
> and then trying the one with the proposed patch? Otherwise, there are
> too many unknowns in the equation :-). I know, the patched kernel compiles,
> but since I don't have access to a 720 machine, I could not test it.

The main reason I ever came to this list is because the default kernels
can't run the installer! :-) I suspect my problems were caused by a
corrupt rescue.bin, so I will try again soon with a fresh (md5sum
verified copy).

If that doesn't work, I'll boot up a fresh nfsroot again and play around
with that.

Cheerio,

Albert

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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
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Subject: Re: [parisc-linux] Second Draft of the help for the kernel
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>Hi all,
>
>	Once again, I ask you to verify what I wrote and only God knows =
how
>important it is to re-read this file b/c it is useful and I made it so
>many mistakes for sure :)
>
>	I added the comments of the first draft (Thanks to Grant) and CPU =
type
>help too. I do not really like the lists. If you have any better idea,
>please let me know.
>
>Thanks, Thomas.
>ESIEE Team
>
>PS: I would like to know if I can put the PA-RISC/Linux Boot HOWTO into
>stable state??
>
>Text to add in Documentation/ Configure.help
>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>
>
>Processor family
>CONFIG_PA7100
>  In this section, you will find enough informations to set correctly=20
>  your CPU type option. Nevertheless, if you need more, you can see=20
>  all the hardware content of your box at http://hwdb.parisc-linux.org.
> =20
>  If you select the PA7000/PA7100 option, your box must be one of =
these=20
>  listed below: 705/35, 710/50, 715/33, 715/50, 715/75, 720/50, 725/50,=20=

>  725/75, 730/66, 735/99, 735/125, 750/66, 755/99.
>
>  If you select the PA7200 option, your box must be one of these =
listed=20
>  below: C100, C110, D250, D350, D260, D360, J200, J210, K100, K200,=20
>  K210, K220, K400, K410, K420.
>
>  If you choose the PA7100LC/PA7300LC option then your box is 715/64,=20
>  715/80, 715/100, 725/100, A180, B132L(+), B160L(+), B180L(+), C160L,=20
>  C180L, D200, D210, D220, D230, D300, D310, D320 or D330. There are=20
>  also some systems from the E series but there are not yet supported.
>
>  Finally, PA8x00 is the good choice for all new stuff like A500, B1000,
>  B2000, B2600, C200+, C240+, C3000, C3600, J282, J2240, J5000, J6000,=20
>  J6700, J7000, K250, K260, K270, K370, K450, K460, K470, K570, L1000,=20
>  L2000, L3000, N4000, V2200, V2250, V2500.
>
Since at least two C200+ machines get Trace/Breakpoint trap errors when
compiling for PA8x00, I'd suggest a rephrasing or an addition like:

- for a generic kernel, select PA7x00
- if you select PA7000/PA7100, your box must be .... or newer.
- if you're not sure, select PA7x00

etc. 'Must' sounds very sure.

Good luck,
Jurriaan






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From: Jochen Friedrich <jochen@scram.de>
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Subject: Re: [parisc-linux] woody install on 720/50
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Hi Albert,

> Next I tried a network install using my i386 box (with co-ax network
> card to connect to the 720) as a web server. According to the
> access.log, the drivers.tgz and rescue.bin very retrieved without
> problems. When it tried to extract the rescue.bin, it croaked with a
> message saying "Bad address." When I tried to retrieve the images a
> second time, the installer croaked.

I don't know about this installer problem as i did the install manually
before. After applying the patch, the programs ls, tar, etc started
working OK and i just successfully performed the apt-get update/upgrade
:-)

Cheers,
Jochen





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On Mon, Oct 01, 2001 at 07:12:28PM +0200, Rdiger Scholz wrote:
> I'm glad i'm not the only one with this problem. And even someone knows 
> the solution for the problem. ;-). I also disabled my add-on card the 
> same way, and then the sti-stuff worked quite fine. But it would be 
> cooler to use the second card, too.

sure, after having fixed the X problem I had with artist/viz-eg cards
I've spend some time looking at HCRX. I've found one problem, when we
load the color for the HCRX, the card locks up, probably because we
do a whole color map load per setcolreg() call. I've changed that
and the card doesn't lock up anymore. But either I get wrong colors
without colormap loading or I have some strange looking stuff "behind"
the normal screen content. It looks like either we need to initialize
the Z-Buffer (I'll try without, when I get home) or some overlay/attribute
planes need a better treatment.

> But you already have a patch? I can only help with testing and a little 
> bit of debugging as all of my fingers are thumbs ;-)

right now I'm not at home (and behind a 28.8k modem connection) and I only
have a C200 with me, which has other STI problems. So it will take a little
bit more time, to get the HCRX going.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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From: Paul Bame <bame@riverrock.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Bug#114145: palo: 1- why on i386?; 2- postinst errors (fwd)
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Anyone want to handle this packaging-related palo problem?  The x86
package is so we can build debian CDs if I remember correctly.

	-P

------- Forwarded Message

Subject: Bug#114145: palo: 1- why on i386?; 2- postinst errors
Reply-To: Lazarus Long <lazarus@overdue.dhis.net>, 114145@bugs.debian.org
From: Lazarus Long <lazarus@overdue.dhis.net>
To: submit@bugs.debian.org
Message-Id: <20011002002132.263457300D@phoenix.overdue.net>
Date: Tue,  2 Oct 2001 00:21:32 +0000 (UTC)

Package: palo
Version: N/A
Severity: important

First problem:
Why would this package be automatically installed on i386 systems?

 Description: Linux boot loader for parisc/hppa
  This package contains the parisc boot loader itself, plus palo which
  is the boot media management tool as lilo is for i386.

This seems inappropriate to be installed on i386, yet it was automatically
chosen for such.



Second problem:
Postinst errors:

Setting up palo (0.94) ...
cannot open dhelp file '/usr/share/doc/palo/html/.dhelp': at /usr/sbin/install-docs line 559.
dpkg: error processing palo (--configure):
 subprocess post-installation script returned error exit status 2
Errors were encountered while processing:
 palo
E: Sub-process /usr/bin/dpkg returned an error code (1)


- -- System Information
Debian Release: post-2.2
Kernel Version: Linux phoenix 2.4.5 #1 Sun May 27 00:48:35 UTC 2001 i586 unknown

------- End of Forwarded Message





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Subject: [parisc-linux] Bug#114145: needed for CD building, but lower Priority to normal (fwd)
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More info on the palo thing

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        Hi!

 palo is needed for building the official CD set to be installable for
parsic/hppa.  That's why it is needed on i386.  Only thing that should
be changed is the Priority:  important there makes it install on
default - but on the other hand one installing parsic/hppa would have it
installed from the CD nevertheless - and one having an other
architecture shouldn't be bothered with it nevertheless.

 Mabe a trim in the Architecture string to include just the needed ones
should be thought of, too.  Is there need to have it on sparc, powerpc,
s390 and so on?  I don't think so, but you (the maintainer, not the bug
reporter ;) might know reasons.

 Thanks for the attention,
Alfie
- -- 
 You never learn anything  |   /"""""\                   ,'~~.
   by doing it right.      |  / chaos \  alfie.ist.org   |o ?~\
           -- unknown      |  \inside!/  alfie@ist.org  /_   ~<\
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> Also, I've tried looking at todo list to find something to work on...
> It seems rather outdated and some tasks in it seem to be already
> completed (like unaligned trap handler, etc.). So, where should
> I direct my efforts? What is the part of parisc-linux project, which
> needs immediate attention? ;-).

http://bugs.parisc-linux.org/ has a list of outstanding bugs. the TODO
list items (and more) were moved over there some time ago.

randolph
-- 
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>   Finally, PA8x00 is the good choice for all new stuff like A500, B1000,
>   B2000, B2600, C200+, C240+, C3000, C3600, J282, J2240, J5000, J6000,
>   J6700, J7000, K250, K260, K270, K370, K450, K460, K470, K570, L1000,
>   L2000, L3000, N4000, V2200, V2250, V2500.

I think it is unlikely that V2200, V2250, and V2500 will ever be supported.

I'm not very familiar with PDC on most of these machines, but at least on 
Halfdome, you can get a pretty good clue as to what processor to target by 
doing "in fru" at the PDC BCH menu:

  Main Menu: Enter command or menu > in fru

  CELL 0 CPU FRU INFORMATION:             

  Cab/
  Slot/                     Part        Serial    Date Art Scan   FRU   
Specific
  CPU       FRU Name       Number       Number    Code Rev  Rev   
Information
  ----- ---------------- ----------- ------------ ---- --- ---- 
----------------
  0/0/0        Processor A6445-70001 00000000001P          0000   PA8700 
Rev 2.2

Maybe a pointer to similar functionality in other firmware would be useful 
and reduce the dependence on the lists of machines.




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Hello,

The palo README has some information on this. I quote:

                     Creating ISO9660 Bootable CD-ROMs

   Bootable CDs are often used for installation. In short the process is:
    1. Master your CD image but don't burn it. The image MUST containthe
       kernel(s), iplboot, and ramdisk file (if used).
    2. Run palo to make the image bootable:
        ./palo  -k path/to/vmlinux \
                -b iplboot \
                -c '0/vmlinux ....' \
                -C your-iso-image
       -C   tells   palo   to  prepare  a  CD-ROM  image.  'iplboot' and
       'path/to/vmlinux'  must  be exactly the same files (same contents)
       you  previously  copied  into  the future root file system or palo
       will  fail.  I usually point those paths at the exact files in the
       directory from which I mastered the CD just to be sure.
    3. Burn the CD and boot it.

   CD-ROM support at the moment is a bit of a hack. Here's how it works.

Read the README for some more info. I haven't tried this since my
(probably VERY old) SCSI CD-ROM drive won't read RW discs.

Regards,

Albert

On Tue, 02 Oct 2001, Hamish Moffatt wrote:

> On Tue, Oct 02, 2001 at 01:27:23AM +0200, Albert Strasheim wrote:
> > I've think I've tried to convey the following command to you in about 3
> > different threads across 2 mailing lists :-)
>=20
> Err, yeah, you have. Sorry about that. Thanks for being patient :-)
>=20
> > Get palo-latest.tar.gz (about 62 KB) from puffin.external.hp.com,
> > compile that, cross-compile your kernel and then run the following:
> >=20
> > (linux/ contains the kernel and palo/ contains the bootloader)
> >=20
> > palo/palo/palo -f /dev/null -k linux/vmlinux -r root.bin -s lifimage \
> >   -b palo/iplboot -c "0/linux HOME=3D/ root=3D/dev/ram initrd=3D0/ramdi=
sk"
> >=20
> > What this does is the following:
> >=20
> > palo takes the kernel (vmlinux (with Jurij's patches in my case)), the
> > latest Debian rootdisk (root.bin), puts them together and creates a
> > lifimage for you to boot via rbootd or tftpd (depending on your model).
>=20
> I'd particularly like to boot from CD if possible. The network boot
> is possible, but less convenient. Is it possible (and not unreasonably
> difficult) to create a new CD with the new kernel?
>=20
>=20
> thanks
> Hamish
> --=20
> Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>

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From - Thu Nov 08 21:19:34 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] PCX-T' in hwdb
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in case anyone cares, i finally fixed the PCX-T' link in the hardware
database.  i've only known about it for 18 months or so.. :-)

-- 
Revolutions do not require corporate support.




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Mount segfaults and stuff
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Jurij Smakov wrote:
> What is the part of parisc-linux project, which
> needs immediate attention? ;-).

*sigh*. Lots of little stuff like floppy driver and hpux binary support.

The TODO list is stale intentionally.
We should be using http://bugs.parisc-linux.org.

grant




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To: Bjorn Helgaas <bjorn_helgaas@hp.com>
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Bjorn Helgaas wrote:
>   Main Menu: Enter command or menu > in fru
...
> Maybe a pointer to similar functionality in other firmware would be useful 
> and reduce the dependence on the lists of machines.

That's a good idea.  Different generations of machines have different
commands to list the type and revisions of chips/devices installed.
But it's only two or three commands need to be listed.

For newer machines, "in io" at "Main Menu" prompt will list all IO devices.
See "info" menu for more commands. I forgot what the equivalent cmd
was for older machines (eg 712 or 715).

grant




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Bryan,
In general, questions like this will get better answers from
the parisc-linux mailing list - see http://lists.parisc-linux.org/.

I'll take a first whack at it though.

"Bryan W. Headley" wrote:
> Grant,
> 
>                 Am still having issues getting my poor C110 to boot up. 
> Doesn't read the   boot CDROM worth a darn even after I "palo" the iso 
> image -- which is probably not necessary, but what the hey?

The ISO image you downloaded has palo in it. Running palo with the
ISO image is either going to fail (best case, do no harm) or trash
the ISO image (worst case). I would guess the latter.
Make sure the md5sum output for the ISO image matches what's posted
on the website you got the ISO from.

> When I rboot 
> the lifimage, it doesn't seem willing to send the console to the serial 
> port nor is it willing to put stuff on the console, either.

When booting, answer Y to "interact with IPL" question with yes.
You have "manually" boot from the PDC prompt (aka BOOT_ADMIN prompt)
in order to get that question.

Then you can verify "console=ttyS0" parameter is set.
Disconnecting the keyboard should force the console output
to the serial port.

Oh - and several workstations may have issues with serial port numbering.
Ie what's labeled port A on the back may be seen as ttyS1 by parisc-linux.
Some of that has been fixed with newer kernels.
You would need to build a newer kernel and boot it via bootp.
This isn't as simple as it sounds...perhaps wait until a new
ISO is published.

> Anyway, it tries to boot (silently) and does things with the hard disks 
> (I know not what), but...
> 
> The drives are hanging off of a FWSCSI controller. I'm right in thinking 
> that the support for that is still not there, right?

In general the SCSI driver for Zalon works. The problem is with
IO MMU support for devices below anything other than the first IO MMU.

> I'm wondering if I 
> should go through the old Mach4 source and try to glom over the FW 
> support... Whose toes do I step on if I try to do that; who should I 
> handshake with?

I dunno. I've only looked at the mach sources once for 712 stuff.

> If you know a good "secret handshake" command to give at the iplboot to 
> make the kernel send it's console messages to to STI or ttyS0, that'd be 
> appreciated.

It's not secret - search for "console=" in the mail archives.


> Oh, and I upped the puppy to 256 Mb, but I doubt that confuses it too 
> much (eek! The memory map is not floating to the "last 32K" or 
> something, is it?)

no. 256MB isn't that much at all. I'm running 2GB in my c3k
and once had as much as 4GB in the c3k.

> I get this puppy up, I get to bring up the 735/99, and then figure out 
> what HP means, we can use STI to be the basis of the X driver...

XF86 is mostly working for B180 and 712's from reports on p-l mailing list.
If you have Vis-EG (normal built-in) graphics, it might work for
C110 as well since it's not using IO MMU (afaik).

grant




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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [patch] kernel-mode unaligned handler
Date: Tue, 2 Oct 2001 23:09:22 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:12434

With some nudging and help from willy I looked into enabling kernel-mode
unaligned access handling.... the attached patch seems to work; if it
doesn't look wrong to anybody i'll check it in... :)

tested on a c3k running a 64-bit kernel... for kernel space I tried
"nmap -O localhost" and that works ok now.

Comments appreciated,
randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


Index: unaligned.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/unaligned.c,v
retrieving revision 1.7
diff -u -r1.7 unaligned.c
--- unaligned.c	2001/07/14 21:17:02	1.7
+++ unaligned.c	2001/10/03 06:00:11
@@ -129,8 +129,10 @@
 		regs->isr, regs->ior, toreg, len);
 
 	__asm__ __volatile__  (
+"       mfsp %%sr1, %%r20\n"
+"       mtsp %6, %%sr1\n"
 "	copy %%r0, %0\n"
-"0:	ldbs,ma	1(%%sr3, %4), %%r19\n"
+"0:	ldbs,ma	1(%%sr1,%4), %%r19\n"
 "	addi -1, %5, %5\n"
 "	cmpib,>= 0, %5, 2f\n"
 "	or %%r19, %0, %0\n"
@@ -143,8 +145,7 @@
 #endif
 	
 "1:	ldi	10, %1\n"
-"2:\n"
-
+"2:     mtsp %%r20, %%sr1\n"
 "	.section __ex_table,\"a\"\n"
 #ifdef __LP64__
 	".dword 0b, (1b-0b)\n"
@@ -153,8 +154,8 @@
 #endif
 	".previous\n" 
 	: "=r" (val), "=r" (ret)
-	: "0" (val), "1" (ret), "r" (saddr), "r" (len)
-	: "r19" );
+	: "0" (val), "1" (ret), "r" (saddr), "r" (len), "r" (regs->isr)
+	: "r19", "r20" );
 
 	DPRINTF("val = 0x" RFMT "\n", val);
 
@@ -184,12 +185,14 @@
 
 
 	__asm__ __volatile__ (
+"       mfsp %%sr1, %%r20\n"		/* save sr1 */
+"       mtsp %5, %%sr1\n"
 #ifdef __LP64__
 "0:	extrd,u %2, 7, 8, %%r19\n"
 #else
 "0:	extrw,u %2, 7, 8, %%r19\n"
 #endif
-"1:	stb,ma %%r19, 1(%%sr3, %3)\n"
+"1:	stb,ma %%r19, 1(%%sr1, %3)\n"
 "	addi -1, %4, %4\n"
 "	cmpib,>= 0, %4, 3f\n"
 	
@@ -203,7 +206,7 @@
 "	nop\n"
 
 "2:	ldi 11, %0\n"
-"3:\n"
+"3:     mtsp %%r20, %%sr1\n"
 "	.section __ex_table,\"a\"\n"
 #ifdef __LP64__
 	".dword 1b, (2b-1b)\n"
@@ -212,8 +215,8 @@
 #endif
 	".previous\n" 
 	: "=r" (ret)
-	: "0" (ret), "r" (val), "r" (regs->ior), "r" (len)
-	: "r19" );
+	: "0" (ret), "r" (val), "r" (regs->ior), "r" (len), "r" (regs->isr)
+	: "r19", "r20" );
 
 	return ret;
 }
@@ -233,7 +236,6 @@
 	 */
 	if (!user_mode(regs))
 	{
-#if 0 /* TODO: do we want to handle this? */
 		const struct exception_table_entry *fix;
 
 		/* see if the offending code have its own
@@ -257,25 +259,26 @@
 
 			return;
 		}
-#endif
-		die_if_kernel("Unaligned data reference", regs, 28);
 	}
 
 	/* log a message with pacing */
-	if (unaligned_count > 5 && jiffies - last_time > 5*HZ)
+	if (user_mode(regs))
 	{
-		unaligned_count = 0;
-		last_time = jiffies;
-	}
-	if (++unaligned_count < 5)
-	{
-		char buf[256];
-		sprintf(buf, "%s(%d): unaligned access to 0x" RFMT " at ip=0x" RFMT "\n",
-			current->comm, current->pid, regs->ior, regs->iaoq[0]);
-		printk(KERN_WARNING "%s", buf);
+		if (unaligned_count > 5 && jiffies - last_time > 5*HZ)
+		{
+			unaligned_count = 0;
+			last_time = jiffies;
+		}
+		if (++unaligned_count < 5)
+		{
+			char buf[256];
+			sprintf(buf, "%s(%d): unaligned access to 0x" RFMT " at ip=0x" RFMT "\n",
+				current->comm, current->pid, regs->ior, regs->iaoq[0]);
+			printk(KERN_WARNING "%s", buf);
 #ifdef DEBUG_UNALIGNED
-		show_regs(regs);
-#endif	
+			show_regs(regs);
+#endif		
+		}
 	}
 
 	/* TODO: make this cleaner... */
@@ -363,7 +366,9 @@
 
 	if (ret)
 	{
-		printk(KERN_CRIT "Unaligned handler failed, ret = %d ", ret);
+		printk(KERN_CRIT "Unaligned handler failed, ret = %d\n", ret);
+		die_if_kernel("Unaligned data reference", regs, 28);
+
 		/* couldn't handle it ... */
 		si.si_signo = SIGBUS;
 		si.si_errno = 0;




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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PCXS fixes
Date: Wed, 3 Oct 2001 02:32:54 -0600 (MDT)
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I just committed some PCXS fixes, some of which were based on the ideas
posted here in the last week or so for 720 support.  One new fix is that I
program the Asp interrupts correctly, fixing a bug which was preventing
710's from booting (I think there is at least one person on this list
with such a machine).

However, ls still hangs randomly (actually it is not random, it depends on
which directory the ls is done in).  It gets stuck in a ldcw loop due to
the lock word not being 16 byte aligned.  The problem is that we fixed the
alignment problems for static and dynamic allocations, but the align
attribute is ignored for automatic (stack) allocations. Note that
although ldcw requires 16 byte alignment for correct function, it does
not cause an unaligned fault if the address is not aligned, it just
doesn't work correctly!

Here are some suggested fixes:

    1) Fix the compiler to honor the aligned attribute for stack
    allocations. I'm not sure how difficult this would be. I'm
    not a compiler person, so someone else would have to do this.
    I would guess that this problem is in the machine independent
    part of the compiler. I'm not sure whether or not it would
    be considered a bug. It might be worth writing a test for
    the 386 version of gcc, and if it fails, report the "bug" and
    see what happens ...

    2) Change the lock structure to have 4 contiguous lock words, each
    initialized to 1.  Then the lock code can round the address up to the
    nearest 16 byte aligned address and use that for the semaphore.  If we
    choose this solution we can just get rid of the aligned attribute,
    since it would no longer serve any purpose.


John Marvin
jsm@fc.hp.com




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From: Jurij Smakov <jurij@lokmail.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Mount segfaults and stuff
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> *sigh*. Lots of little stuff like floppy driver and hpux binary support.
> 
> The TODO list is stale intentionally.
> We should be using http://bugs.parisc-linux.org.
> 
> grant

Hi!

The problem is that this bug list is also rather outdated. There are
two more or less recent bugs, others are more than 2 months old. Most
kernel bugs are filed against 2.4.0 kernel. I guess, a lot of things
changed since then. For example, mount bug, that I've mentioned before
just disappeared, once I recompiled it from source with latest CVS gcc.
Also, bug #135 (kernel panic on 712 doing two simultaneous compiles) - 
yesterday I've built the kernel with "make -j 2" without any problems
on a 712/80. Is it enough to close this bug? IMHO, the right strategy
in this situation would be to try and reproduce the bugs with latest
toolchain and drop the bugs, which do not have a recipe to reproduce them.

Anyway, what should I do with mount? Do I have to contact the package
maintainer? I can build the debs myself, but those will be unofficial.

Also, last night I had some weird problems with linux/net/core/netfilter.c
Sometimes its compilation fails, but I could not pinpoint the problem
so far. I'll play with it, but it would be nice to know, if anyone
else has/had any (negative) experiences with this file.

Best regards,

Jurij.







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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Second Draft of the help for the kernel options
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Hi all,

	The Bjorn's idea is quite practical but the problem is we need to do a
complete list of command. With this list, users will know what commands
to do to get the cpu type...

	For the B132L, I need to do in cr. And for 712, "in" do not give you
the model of the cpu :(

Perhaps, we could a more general text saying:   1- You have to enter the
information menu by "in" (it seems to be general to all boxes)
						2- Here you need to find the command to get the revisions of your
chip/device. This must look like PAXXX0. For example this command is cr
for B132 and io for newer machines.

btw, we could add the complete list of the commands in the HOWTO.

This is a proposition. Tell me what you think of it. Thomas.
ESIEE Team

> >   Main Menu: Enter command or menu > in fru
> 
> For newer machines, "in io" at "Main Menu" prompt will list all IO devices.




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> What I was concerned about was the chance that the instruction addressed
> by iaoq[1] was a branch (or taken conditional branch) instruction.  With
> the
> discription given in the documentation, then the queue state returned would
> have to be:
>
> regs->iaoq[0] == branch instruction address
> regs->iaoq[1] == target instruction address
>

No, you are forgetting about the delay slot.  The documentation is
correct, although the concept can be confusing at first.  Branches to a
target don't happen immediately, they happen after the instruction
following the branch is executed (that instruction is referred to as the
"delay slot instruction").

I'll try to explain it here. Perhaps I can explain it clearer than how
the parisc documentation explains it (then again, perhaps not :-)).

For the purposes of this explanation I am only going to consider
unconditional branches.  I am also not going to talk about the space
queue, since once you understand the operation of the offset queue, the
operation of the space queue follows fairly easily.  Also, I am going to
use "pc" (for program counter) instead of "iaoq" (for instruction address
offset queue) for easy comparison.

For comparison, let us first consider most other architectures without
delayed branching. Because they don't have delayed branching they don't
need a pc queue. So, when an instruction causes some type of fault
we have:

	pc -> faulting instruction

If we are going to emulate the faulting instruction we need to advance
the pc after the emulation, i.e. do exactly what the cpu would have
done if it had executed the instruction. If the instruction was
not a branch we would simply do:

	pc += 4

If the instruction was a branch we would do:

	pc = target of branch

On parisc, with delayed branching, we need a 2 element queue in order
to implement a 1 instruction branch delay. So, when an instruction
faults we have:

	pc[0] -> faulting instruction
	pc[1] -> next instruction to execute

pc[1] above might be equal to pc[0] + 4, but it could be something
else (it depends on whether the instruction before the faulting
instruction was a branch or not). We don't really care at this point.

If the faulting instruction is not a branch we would simply do the
following to advance the queue:

	pc[0] = pc[1]
	pc[1] += 4;

If the faulting instruction is a branch (make sure you understand
this, because it explains how a branch on parisc works) we would
do the following to advance the queue:

	pc[0] = pc[1]
	pc[1] = target of branch

i.e. the target doesn't take effect immediately, the instruction
that is now pointed to by pc[0] is executed first.

So, consider the example that was quoted above, regarding a branch being
pointed to by pc[1] when we fault.  This doesn't make a difference on how
we advance the queue.  If the instruction pointed to by pc[0] (when the
fault occurs) is not a branch, what pc[1] points to -- whether or not it is
a branch -- does not make any difference, because it has not been executed
yet.  So for example, following the explanation above, we have:

	pc[0] -> faulting instruction (non branch, e.g. mfctl)
	pc[1] -> branch instruction

When we advance the queue, according to the non branch algorithm
we get:

	pc[0] -> branch instruction
	pc[1] -> branch instruction + 4 (i.e. delay slot of branch)

When the branch instruction executes next, it does not overwrite
pc[1] without first advancing what was in pc[1] to pc[0], i.e. the
instruction following the branch gets executed before we move to
the target instruction.

Have I made things clearer or fuzzier here?

John

P.S. For extra credit, see if you can follow this:

Consider what happens if we have a branch in the delay slot of
another branch (note that in this example, neither target is
a branch), i.e:

    pc[0] -> branch1 to target1
    pc[1] -> branch2 to target2

After the first branch is executed we have:

    pc[0] -> branch2 to target2
    pc[1] -> target1

After the second branch is executed we have:

    pc[0] -> target1
    pc[1] -> target2

One more step:

    pc[0] -> target2
    pc[1] -> target2 + 4

the "cool" thing about the above sequence is that the instruction at
target1 gets executed, and then immediately we jump somewhere else, i.e.
we can execute one instruction somewhere and then immediately go somewhere
else (without having a branch at target1).  If you follow this example,
then you really understand delayed branching.

Note that the above example is the whole reason we must have a "B" bit in
the PSW (processor status word).  The B bit is set by any taken branch,
and is cleared by any other instruction.  The "gate" instruction, which is
used for privilege promotion, will fault if the B bit is set when the gate
instruction is executed.  The reason is that even though the gate
instruction can only be located on a execute only page (i.e. you can't
change the instruction sequence), you could use the above trick to execute
only the gate instruction and then return to your own code with increased
privilege if the "B" bit didn't exist.




From - Thu Nov 08 21:19:35 2018
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From: "Jim Buttafuoco" <jim@buttafuoco.net>
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Subject: Re: [parisc-linux] PCXS fixes
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John,

I have a couple of 710's and would love to test if you can provide me 
with a kernel to net boot from.

Jim


> I just committed some PCXS fixes, some of which were based on the 
ideas
> posted here in the last week or so for 720 support.  One new fix is 
that I
> program the Asp interrupts correctly, fixing a bug which was 
preventing
> 710's from booting (I think there is at least one person on this list
> with such a machine).
> 
> However, ls still hangs randomly (actually it is not random, it 
depends on
> which directory the ls is done in).  It gets stuck in a ldcw loop due 
to
> the lock word not being 16 byte aligned.  The problem is that we 
fixed the
> alignment problems for static and dynamic allocations, but the align
> attribute is ignored for automatic (stack) allocations. Note that
> although ldcw requires 16 byte alignment for correct function, it does
> not cause an unaligned fault if the address is not aligned, it just
> doesn't work correctly!
> 
> Here are some suggested fixes:
> 
>     1) Fix the compiler to honor the aligned attribute for stack
>     allocations. I'm not sure how difficult this would be. I'm
>     not a compiler person, so someone else would have to do this.
>     I would guess that this problem is in the machine independent
>     part of the compiler. I'm not sure whether or not it would
>     be considered a bug. It might be worth writing a test for
>     the 386 version of gcc, and if it fails, report the "bug" and
>     see what happens ...
> 
>     2) Change the lock structure to have 4 contiguous lock words, each
>     initialized to 1.  Then the lock code can round the address up to 
the
>     nearest 16 byte aligned address and use that for the semaphore.  
If we
>     choose this solution we can just get rid of the aligned attribute,
>     since it would no longer serve any purpose.
> 
> 
> John Marvin
> jsm@fc.hp.com
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 
> 






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On Fri, Sep 28, 2001 at 01:05:18AM -0600, Ryan Bradetich wrote:
> > Hamish Moffatt wrote:
> > > I'm trying to install the 0.9 release on a D350 server. The kernel
> > > recognises the standard SCSI, using the lasi7xxx driver, and finds
> > > the tape drive and the CD-ROM on that host. However, it doesn't
> > > find the Bluefish fast/wide SCSI host, so it doesn't find the
> > > four internal hard disks, which makes installation a little tough.
> 
> You need a newer kernel, and you should be able to see the SCSI
> card.  I'm not sure which -pa?? kernel, so just grab CVS head and
> that should be sufficient.

I got 2.4.9-pa30 from CVS and booted it up, and it found the Bluefish
card and the four SCSI drives. Neat! Thanks!

Unfortunately I stuffed up something else, and it couldn't load the
RAM disk, so I haven't been able to actually install it yet. But
it looks promising.


regards,
Hamish
-- 
Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>




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Subject: [parisc-linux] Re: [parisc-linux-cvs] Diff for PCXS fixes
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>
> On Wed, Oct 03, 2001 at 02:15:49AM -0600, John Marvin wrote:
> > +     /* Program VIPER to interrupt on the ASP irq */
> > +     gsc_writel((1 << (31 - ASP_GSC_IRQ)),VIPER_INT_WORD);
>
> If we can program Viper (the graphics board, right?) to interrupt on any
> CPU interrupt, why not give it its own rather than make it share an IRQ
> with Asp?

No, that is a misunderstanding. Viper is the memory/bus controller.
Asp is connected to viper, i.e. Asp pulls an interrupt line and viper
writes the interrupt into the cpu eirr. There is not really a hard
wired ASP IRQ as implied in asp.c. the value "3" just happened to
be what was left by the firmware on 720/730. The 710 firmware
leaves a clean slate and unwires the Asp interrupt. This write is
required to let Asp interrupt at all. You can make Asp interrupt on
any irq. I decided to just stick with the 3, but we could change it
or dynamically allocate it.

John




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> 
> One more step:
> 
>     pc[0] -> target2
>     pc[1] -> target2 + 4
> 
> the "cool" thing about the above sequence is that the instruction at
> target1 gets executed, and then immediately we jump somewhere else, i.e.
> we can execute one instruction somewhere and then immediately go somewhere
> else (without having a branch at target1).  If you follow this example,
> then you really understand delayed branching.
> 
> Note that the above example is the whole reason we must have a "B" bit in
> the PSW (processor status word).  The B bit is set by any taken branch,
> and is cleared by any other instruction.  The "gate" instruction, which is
> used for privilege promotion, will fault if the B bit is set when the gate
> instruction is executed.  The reason is that even though the gate
> instruction can only be located on a execute only page (i.e. you can't
> change the instruction sequence), you could use the above trick to execute
> only the gate instruction and then return to your own code with increased
> privilege if the "B" bit didn't exist.
> 
>

This is very very similar to the the Sparc.
Delayed branches are an interesting compiler optimization.

I think I see what you mean about "B" being in the PSW, though
I'm not clear on the semantics of an execute only page.

Time to hit the books again!

Thanks for the interesting explanation John!

c.





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Jurij Smakov wrote:
> Hi!
> 
> The problem is that this bug list is also rather outdated.

yeah - many of the bugs filed were placeholders for
issues we found but didn't want to track down at that time.

> There are
> two more or less recent bugs, others are more than 2 months old. Most
> kernel bugs are filed against 2.4.0 kernel. I guess, a lot of things
> changed since then. For example, mount bug, that I've mentioned before
> just disappeared, once I recompiled it from source with latest CVS gcc.

Well, sounds like that's something you could do - try to replicate bugs
and close them if they can't be replicated. I'll take another pass
at the list this week too.

> Also, bug #135 (kernel panic on 712 doing two simultaneous compiles) - 
> yesterday I've built the kernel with "make -j 2" without any problems
> on a 712/80. Is it enough to close this bug?

yes - I think so.  Getting confirmation from the submitter that the
bug is gone is good too.

>  IMHO, the right strategy
> in this situation would be to try and reproduce the bugs with latest
> toolchain and drop the bugs, which do not have a recipe to reproduce them.

Agreed.

> Anyway, what should I do with mount? Do I have to contact the package
> maintainer? I can build the debs myself, but those will be unofficial.

Preferably, if you can, find the bug and send the maintainer a patch.
Otherwise, file a bug on either bugs.debian.org or bugs.parisc-linux.org
depending on if it's reproducible on other arches or not.

> Also, last night I had some weird problems with linux/net/core/netfilter.c
> Sometimes its compilation fails, but I could not pinpoint the problem
> so far. I'll play with it, but it would be nice to know, if anyone
> else has/had any (negative) experiences with this file.

I'm having problems in general building a working kernel.
Neither my natively built 32-bit kernels for c3k nor x-compiled
64-bit kernels for A500 are booting right now...Last msg printed
to serial console is regarding setting PSW to 0 (or 1).
Just now enabled EARLY_DEBUG in pdc_cons.c.

hope this helps,
grant




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From: Jochen Friedrich <jochen@scram.de>
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Subject: Re: [parisc-linux] PCXS fixes
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Hi John,

> However, ls still hangs randomly (actually it is not random, it depends on
> which directory the ls is done in).  It gets stuck in a ldcw loop due to
> the lock word not being 16 byte aligned.

I have the same hangs here on my 720.

And a few more random problems i noticed:

- IPv6 doesn't work yet (this is a ping from 3ffe:400:470:4::1 Linux/alpha 
to 3ffe:400:470:4::3 Linux/parisc):

kernel BUG at /usr/src/linux/include/asm/checksum.h:153!
ICMPv6 checksum failed [3ffe:0400:0470:0004:0000:0000:0000:0001 > 
ff02:0000:0000:0000:0000:0001:ff00:0003]

- zebra complains about netlink problems and loops:

2001/10/03 17:17:51 ZEBRA: netlink-cmd recvmsg overrun

Cheers,
Jochen





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Hello,

Any updates on this situation? puffin is still dead from SourceForge and
some other places I tried.

Regards,

Albert

On Sun, 30 Sep 2001, Bjoern A. Zeeb wrote:

> Hi,
>=20
> after a report on nanog I tired to help to figure out why
> puffin.external.hp.com, www.parisc-linux.org and others are not
> reachable for some people out there.
>=20
> It seems there is a problem with QUEST/HP in Atlanta or behind.
>=20
> Traces to HP seem to be prevented by filters but even ping does not
> work if I check this directly from QUEST router in Atlanta via
> looking glass ( http://stat.qwest.net/flash/lg.cfm ).
>=20
> --- trace from quest router in atlanta ---
> traceroute to puffin.external.hp.com (192.25.206.4), 30 hops max, 40 byte=
 packets
>  1  atl-edge-17.inet.qwest.net (205.171.21.190)  0.514 ms  0.475 ms 0.469=
 ms
>  2  65.112.33.30 (65.112.33.30)  1.460 ms  1.436 ms  1.425 ms
>  3  * * *
> --- ping from quest router in atlanta ---
> PING puffin.external.hp.com (192.25.206.4): 56 data bytes
> --- puffin.external.hp.com ping statistics ---
> 3 packets transmitted, 0 packets received, 100% packet loss
> --- snipp ---
>=20
> I do not directly see this problem because at the momenet I am comming
> in via uunet but two other upstreams I checked here in Germany use
> kpn/quest and thus cannot reach anything in parisc related in
> 192.25.206.0 :( (and most likely more).
>=20
> All those who use kpn/quest or have it as an upstream seem to be
> cut off from mailing lists/web/cvs ?? :((
>=20
> It seems the problem has been there since Sep 25th.
>=20
> Can anybody please try to solve the problem/get information about this
> from other side (HP internal etc. ;) because even email-contacts from
> whois do not work from what I got told :( and this seems to be one of
> the bigger problems (when taking 5 days).
>=20
> Trace back from puffin or www.parisc-linux.org to 65.112.33.30 might
> help to better localize the problem (if there are no internal filters
> in hp bbn that prevent traces)
>=20
> Thanks in advance.
>=20
> --=20
> Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
> 56 69 73 69 74				http://www.zabbadoz.net/
>=20
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

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From - Thu Nov 08 21:19:36 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] puffin.external.hp.com,... unreachable through 
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Xref: news.gmane.org gmane.linux.ports.parisc:12446

Albert Strasheim writes...

> Any updates on this situation? puffin is still dead from SourceForge and
> some other places I tried.

It appears to be a routing problem which seems to affect mostly non-US domains.
I filed a support request on Monday. They're still trying to figure out what's 
going on. I'll send mail once it's resolved.

Sorry for the outage,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






From - Thu Nov 08 21:19:36 2018
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From: Marco Rodriguez <marco@kiyen.face.ubiobio.cl>
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Subject: [parisc-linux] Instalation
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Can I install pa-risc linux on a HP D Class 9000 server with 2 pa-risc
prcesors?
Is there any one who did it?
-- 
*-------------------------*-----------------------------------------*
| Marco Rodriguez M.      |                                         |
| Ing. Civil Informatica. |   mailto:marco@kiyen.face.ubiobio.cl    |
| U. Bio Bio Conce.       |                                         |
*-------------------------*-----------------------------------------*





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Subject: [parisc-linux] Re: Instalation
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On Wed, Oct 03, 2001 at 03:56:01PM -0400, Marco Rodriguez wrote:
> Can I install pa-risc linux on a HP D Class 9000 server with 2 pa-risc
> prcesors?
> Is there any one who did it?

Several people have this working with one processor.  SMP may work.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] puffin.external.hp.com,... unreachable through quest
Date: Thu, 4 Oct 2001 00:02:46 +0200
Organization: is NOT one of my stronger abilities.
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On Wed, Oct 03, 2001 at 12:27:25PM -0600, Matt Taggart wrote:
> To: Albert Strasheim <fullung@ilink.nis.za>
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] puffin.external.hp.com,... unreachable through 
>  quest
> Date: Wed, 03 Oct 2001 12:27:25 -0600
> From: Matt Taggart <taggart@carmen.fc.hp.com>
> 
> Albert Strasheim writes...
> > Any updates on this situation? puffin is still dead from SourceForge and
> > some other places I tried.
> It appears to be a routing problem which seems to affect mostly non-US domains.
> I filed a support request on Monday. They're still trying to figure out what's 
> going on. I'll send mail once it's resolved.
> Sorry for the outage,

puffin.external.hp.com is reachable from source.rfc822.org in Germany, so
I've just refreshed and verified the mirror at (your choice of http, ftp, rsync)
//source.rfc822.org/pub/mirror/puffin.external.hp.com/pub/parisc/

Richard - aka higson@rfc822.org
-- 
Unix:        Your gun, Your bullet, Your foot, Your choice.
M$-CE/ME/NT: Same as Unix, BUT: No choice, and We Aim Higher.
Have a nice day ;-) Richard Higson mailto:richard.higson@gt.owl.de




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From: Jurij Smakov <jurij@lokmail.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Mount segfaults and stuff
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Hi!

> Well, sounds like that's something you could do - try to replicate bugs
> and close them if they can't be replicated. I'll take another pass
> at the list this week too.

Ok, let's do that.

> Preferably, if you can, find the bug and send the maintainer a patch.
> Otherwise, file a bug on either bugs.debian.org or bugs.parisc-linux.org
> depending on if it's reproducible on other arches or not.

It turned out, that there is already newer hppa deb available on the
mirrors. Once I've installed it, the problem was gone. No worries :-).

Cheers,

Jurij.







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From: joel.soete@freebel.net
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Subject: [parisc-linux] sti broken in pa32 on B180
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Hi all,

I just come back to my hppa boxes (a 712/80 and a b180) and just co the last cvs 
kernel (-pa32).
I do usual make oldconfig; make dep ; make vmlinux (on the 712).

I first rebout the model 712 with this kernel.
Everything seems to work fine:
	ksoftirqd_CPU0 does not heat any more 99% of cpu,
	Xfree(4.1.0-2) comes back with its classical grey colors (not more 
blue),
	I try also to disconect-reconect kbd and after a first test the kdb was 
not re-init (receive code (7f) ?)
	but for following test I was not able to reproduce the problem and seems 
to works also?
Nice and Great job.

Then I test this kernel on the B180 model.
Too bad: the sti console stop display at "Set default PSW W bit to 0" (an old 
well know problem) but the server start-up well.
(The last kernel I used successfully with sti console was the 2.4.9-pa14 with 
just a small adaptation of the Thomas Marteau kdb patch at the beginning of 
Sept)
(So I could not test disconnect-reconnect kbd)
Is Xfree works now on this workstation?

Thanks in advance for advice,
	Joel

PS: here is the list of packages installed on those servers. Should I have 
absolutely upgrade some once?

Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  adduser        3.37           Add and remove users and groups to resp. fro
ii  apt            0.5.3          Advanced front-end for dpkg
ii  apt-utils      0.5.3          APT utility programs
ii  at             3.1.8-10       Delayed job execution and batch processing
ii  autoconf       2.50-8         automatic configure script builder
ii  autoconf2.13   2.13-35        automatic configure script builder (obsolete
ii  automake       1.4-p4-1       A tool for generating GNU Standards-complian
ii  autotools-dev  20010626.2     Update infrastructure for config.{guess,sub}
ii  base-config    1.11           Debian base configuration package
ii  base-files     2.2.8          Debian base system miscellaneous files
ii  base-passwd    3.2.1          Debian Base System Password/Group Files
ii  bash           2.05-4         The GNU Bourne Again SHell
ii  bc             1.06-7         The GNU bc arbitrary precision calculator la
ii  binutils       2.11.90.0.7-2. The GNU assembler, linker and binary utiliti
ii  bison          1.28-8.1       A parser generator that is compatible with Y
ii  bsdmainutils   5.20010126-4   More utilities from FreeBSD.
ii  bsdutils       2.11f-1.0.1    Basic utilities from 4.4BSD-Lite.
ii  bzip2          1.0.1-12       A high-quality block-sorting file compressor
ii  console-common 0.7            Basic infrastructure for text console config
ii  console-data   1999.08.29-21  Keymaps, fonts, charset maps, fallback table
ii  console-tools  0.2.3-23.0.1   Linux console and font utilities.
ii  console-tools- 0.2.3-23.0.1   Shared libraries for Linux console and font 
ii  cpio           2.4.2-36       GNU cpio -- a program to manage archives of 
ii  cpp            3.0-6          The GNU C preprocessor.
ii  cpp-3.0        3.0-1          The GNU C preprocessor.
ii  cron           3.0pl1-69      management of regular background processing
ii  dc             1.06-7         The GNU dc arbitrary precision reverse-polis
ii  debconf        0.9.76         Debian configuration management system
ii  debconf-utils  0.9.76         Debconf utilities
ii  debhelper      3.0.39         helper programs for debian/rules
ii  debian-cd      2.2.7          Tools for building (Official) Debian CD set
ii  debianutils    1.15           Miscellaneous utilities specific to Debian.
ii  devscripts     2.5.30         Scripts to make the life of a Debian Package
ii  dhcp-client    2.0pl5-5       DHCP Client
ii  diff           2.7-24         File comparison utilities
ii  diffstat       1.28-1         produces graph of changes introduced by a di
ii  dnsutils       9.1.1-1        Clients provided with BIND
ii  doc-debian     2.2.3          Debian Project documentation, Debian FAQ and
ii  dpkg           1.9.14         Package maintenance system for Debian
ii  dpkg-dev       1.9.14         Package building tools for Debian
ii  dpkg-multicd   0.17           Installation methods for multiple binary CDs
ii  e2fsprogs      1.20-1         The EXT2 file system utilities and libraries
ii  ed             0.2-19         The classic unix line editor
ii  exim           3.22-4.0.1     Exim Mailer
ii  fakeroot       0.4.4-9.2.1    Gives a fake root environment.
ii  fdutils        5.3-3.2.1      Linux floppy utilities
ii  file           3.33-5         Determines file type using "magic" numbers
ii  fileutils      4.1-2          GNU file management utilities.
ii  findutils      4.1.7-2        utilities for finding files--find, xargs, an
ii  finger         0.17-3         User information lookup program.
ii  fixincludes    3.0-1          Fix non-ANSI header files
ii  flex           2.5.4a-11      A fast lexical analyzer generator.
ii  ftp            0.17-6         The FTP client.
ii  g++-3.0        3.0-1          The GNU C++ compiler.
ii  gcc            3.0-6          The GNU C compiler.
ii  gcc-3.0        3.0-1          The GNU C compiler.
ii  gcc-3.0-base   3.0-3          The GNU compiler collection (base package).
ii  gettext        0.10.38-1      GNU Internationalization utilities
ii  gettext-base   0.10.38-1      GNU Internationalization utilities for the b
ii  glibc-doc      2.1.3-19       GNU C Library: Documentation
ii  gpm            1.19.3-6       General Purpose Mouse Interface
ii  grep           2.4.2-1        GNU grep, egrep and fgrep.
ii  grep-dctrl     1.9            Grep Debian package information
ii  groff-base     1.17-4         GNU troff text-formatting system (base syste
ii  gzip           1.2.4-33       The GNU compression utility.
ii  host           20000331-1     Utility for Querying DNS Servers
ii  hostname       2.08           A utility to set/show the host name or domai
ii  html2text      1.2.4-6        An advanced HTML to text converter.
ii  ifupdown       0.6.4-3        High level tools to configure network interf
ii  imlib-base     1.9.10-5       Common files needed by the Imlib/Gdk-Imlib p
ii  indent         2.2.6-3        C language source code formatting program
ii  info           4.0-5          Standalone GNU Info documentation browser
ii  ipchains       1.3.10-11      Network firewalling for Linux 2.2.x
ii  ipmasqadm      0.4.2-2        Utility for configuring extra masquerading f
ii  klogd          1.4.1-2        Kernel logging daemon
ii  less           358-6.1        A file pager program, similar to more(1)
ii  libart2        1.2.13-9       The Gnome canvas widget
ii  libbz2-1.0     1.0.1-12       A high-quality block-sorting file compressor
ii  libc6          2.2.3-9        GNU C Library: Shared libraries and Timezone
ii  libc6-dev      2.2.3-6.0.1    GNU C Library: Development Libraries and Hea
ii  libcap1        1.10-9         support for getting/setting POSIX.1e capabil
ii  libdb2         2.7.7-8.0.2    The Berkeley database routines (run-time fil
ii  libdb3         3.2.9-10       Berkeley v3 Database Libraries [runtime]
ii  libdigest-md5- 2.13-2         MD5 Message Digest for Perl
ii  libdns4        9.1.1-1        Shared Library used by BIND
ii  libdps1        4.1.0-2        Display PostScript (DPS) client library
ii  libfreetype6   2.0.2.20010514 FreeType 2 font engine, shared library files
ii  libgcc1        3.0-1          GCC support library.
ii  libgdbmg1      1.7.3-27       GNU dbm database routines (runtime version).
ii  libglib1.2     1.2.10-1.2     The GLib library of C routines
ii  libgpmg1       1.19.3-6       General Purpose Mouse Library [libc6]
ii  libgpmg1-dev   1.19.3-6       General Purpose Mouse Library, development f
ii  libident       0.22-2         simple RFC1413 client library - runtime
ii  libisc3        9.1.1-1        Shared Library used by BIND
ii  libkpathsea3   1.0.7+20001218 shared libkpathsea for teTeX
ii  libldap2       2.0.11-2       OpenLDAP libraries.
ii  liblockfile1   1.03           NFS-safe locking library, includes dotlockfi
ii  liblwres1      9.1.1-1        Shared Library used by BIND
ii  libncurses5    5.2.20010318-2 Shared libraries for terminal handling
ii  libncurses5-de 5.2.20010318-2 Developer's libraries and docs for ncurses
ii  libnewt0       0.50.17-7.0.1  Not Erik's Windowing Toolkit - text mode win
ii  libnss-db      2.2-3          DB Name Service Module
ii  libpam-modules 0.72-25        Pluggable Authentication Modules for PAM
ii  libpam-runtime 0.72-25        Runtime support for the PAM library
ii  libpam0g       0.72-25        Pluggable Authentication Modules library
ii  libpcre3       3.4-1          Philip Hazel's Perl Compatible Regular Expre
ii  libperl5.6     5.6.1-5        Shared Perl library.
ii  libpopt0       1.6.2-5        lib for parsing cmdline parameters
ii  libreadline4   4.2-3          GNU readline and history libraries, run-time
ii  libsasl7       1.5.24-6       Authentication abstraction library.
ii  libssl0.9.6    0.9.6a-3       SSL shared libraries
ii  libstdc++3     3.0-1          The GNU stdc++ library version 3
ii  libstdc++3-dev 3.0-1          The GNU stdc++ library version 3 (developmen
ii  libwrap0       7.6-8          Wietse Venema's TCP wrappers library
ii  libxaw6        4.0.3-4        X Athena widget set library (version 6)
ii  libxaw7        4.1.0-2        X Athena widget set library
ii  libzvt2        1.2.13-9       The Gnome zvt (zterm) widget
ii  lintian        1.20.13        Debian package checker
ii  locales        2.2.3-6        GNU C Library: National Language (locale) da
ii  login          20000902-6.1   System login tools
ii  logrotate      3.5.4-2        Log rotation utility
ii  lpr            2000.05.07-4   BSD lpr/lpd line printer spooling system
ii  lsof           4.57-1         List open files.
ii  lynx           2.8.3-1.4      Text-mode WWW Browser
ii  m4             1.4-13         a macro processing language
ii  mailx          8.1.2-0.200103 A simple mail user agent.
ii  make           3.79.1-6.0.1   The GNU version of the "make" utility.
ii  makedev        2.3.1-53       Creates special device files in /dev.
ii  man-db         2.3.18-10      Display the on-line manual.
ii  manpages       1.36-2         Man pages about using a Linux system.
ii  manpages-dev   1.36-2         Linux-development man pages.
ii  mawk           1.3.3-5        a pattern scanning and text processing langu
ii  mime-support   3.11-1         MIME files 'mime.types' & 'mailcap', and sup
ii  mkisofs        1.11a6-1       Creates ISO-9660 CD-ROM filesystem images.
ii  modconf        0.2.32         Device Driver Configuration
ii  modutils       2.4.6-3        Linux module utilities.
ii  mount          2.11f-1.0.1    Tools for mounting and manipulating filesyst
ii  mpack          1.5-7          Tools for encoding/decoding MIME messages.
ii  mtools         3.9.8-3        Tools for manipulating MSDOS files
ii  mtr-tiny       0.42-7         Full screen ncurses traceroute tool
ii  mutt           1.3.18-1       Text-based mailreader supporting MIME, GPG, 
ii  nano           1.0.2-1        free Pico clone with some new features
ii  ncftp          3.0.3-6        A user-friendly and well-featured FTP client
ii  ncurses-base   5.2.20010318-2 Descriptions of common terminal types
ii  ncurses-bin    5.2.20010318-1 Terminal-related programs and man pages
ii  ncurses-term   5.2.20010318-2 Additional terminal type definitions
ii  net-tools      1.60-1         The NET-3 networking toolkit
ii  netbase        4.06           Basic TCP/IP networking system
ii  netkit-inetd   0.10-6.2       The Internet Superserver
ii  netkit-ping    0.10-6.2       The ping utility from netkit
ii  nfs-common     0.3.2-2        NFS support files common to client and serve
ii  nfs-kernel-ser 0.3.2-2        Kernel NFS server support
ii  nvi            1.79-17        4.4BSD re-implementation of vi.
ii  palo           0.92           Linux boot loader for parisc/hppa
ii  passwd         20000902-6.1   Change and administer password and group dat
ii  patch          2.5.4-4        Apply a diff file to an original
ii  pciutils       2.1.8-5        Linux PCI Utilities (for 2.[1234].x kernels)
ii  perl           5.6.1-5        Larry Wall's Practical Extraction and Report
ii  perl-base      5.6.1-5        The Pathologically Eclectic Rubbish Lister.
ii  perl-modules   5.6.1-5        Core Perl modules.
ii  pidentd        3.0.12-3       TCP/IP IDENT protocol server.
ii  portmap        5-2            The RPC portmapper
ii  ppp            2.4.1-2        Point-to-Point Protocol (PPP) daemon.
ii  pppconfig      2.0.8          A text menu based utility for configuring pp
ii  procmail       3.15.1-4       Versatile e-mail processor.
ii  procps         2.0.7-5        The /proc file system utilities.
ii  protoize       3.0-1          Create/remove ANSI prototypes from C code
ii  python-base    1.5.2-16       An interactive object-oriented scripting lan
ii  python-newt    0.50.17-7.0.1  A newt module for Python.
ii  rcs            5.7-13         The GNU Revision Control System
ii  sed            3.02-6         The GNU sed stream editor.
ii  setserial      2.17-22        Controls configuration of serial ports.
ii  sharutils      4.2.1-6        shar, unshar, uuencode, uudecode
ii  shellutils     2.0.11-9       The GNU shell programming utilities.
ii  slang1         1.4.4-3.1      The S-Lang programming library - runtime ver
ii  strace         4.3-3.0.1      A system call tracer.
ii  sysklogd       1.4.1-2        System logging daemons
ii  sysutils       1.3.8.5        Miscellaneous small system utilities.
ii  sysvinit       2.78-4         System-V like init.
ii  tar            1.13.19-1      GNU tar
ii  tasksel        1.4            Tool for selecting tasks for installation on
ii  tcpd           7.6-8          Wietse Venema's TCP wrapper utilities
ii  tcsh           6.10-0.1       TENEX C Shell, an enhanced version of Berkel
ii  telnet         0.17-13        The telnet client.
ii  telnetd        0.17-13        The telnet server.
ii  texinfo        4.0-5          Documentation system for on-line information
ii  textutils      2.0-6          The GNU text file processing utilities.
ii  time           1.7-11         The GNU time command.
iU  twm            4.0.3-4        Tab window manager
ii  update         2.11-3         daemon to periodically flush filesystem buff
ii  util-linux     2.11f-1.0.1    Miscellaneous system utilities.
ii  vacation       3.0            email autoresponder
ii  wenglish       2.0-1          English dictionary words for /usr/share/dict
ii  whiptail       0.50.17-7.0.1  Displays user-friendly dialog boxes from she
ii  whois          4.5.7          The GNU whois client
ii  xbase-clients  4.1.0-2        miscellaneous X clients
ii  xdm            4.1.0-2        X display manager
ii  xfonts-100dpi  4.1.0-2        100 dpi fonts for X
ii  xfonts-75dpi   4.1.0-2        75 dpi fonts for X
ii  xfonts-base    4.1.0-2        standard fonts for X
ii  xfonts-scalabl 4.1.0-2        scalable fonts for X
ii  xfree86-common 4.1.0-2        X Window System (XFree86) infrastructure
ii  xlib6g         4.1.0-2        pseudopackage providing X libraries
ii  xlibmesa3      4.1.0-2        XFree86 version of Mesa 3D graphics library
ii  xlibs          4.1.0-2        X Window System client libraries
ii  xserver-common 4.1.0-2        files and utilities common to all X servers
ii  xserver-xfree8 4.1.0-2        the XFree86 X server
ii  xterm          4.1.0-2        X terminal emulator
ii  xutils         4.1.0-2        X Window System utility programs
ii  zlib1g         1.1.3-15       compression library - runtime


-------------------------------------------------
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From - Thu Nov 08 21:19:36 2018
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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP-UX binary compatibility
Date: Thu, 4 Oct 2001 05:56:48 -0600 (MDT)
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I just committed a patch that restores some of the elementary HP-UX
binary compatibility functionality. Shared libraries also work. But
there is a ton of more work to do. Lots of wrappers need to be written
(see the arch/parisc/hpux directory for files that contain the support
for this functionality). One major missing piece is signal support.
Mapping ioctl arguments is another significant effort ...

John





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From: Nathan Neulinger <nneul@umr.edu>
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Subject: Re: [parisc-linux] HP-UX binary compatibility
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John Marvin wrote:
> 
> I just committed a patch that restores some of the elementary HP-UX
> binary compatibility functionality. Shared libraries also work. But
> there is a ton of more work to do. Lots of wrappers need to be written
> (see the arch/parisc/hpux directory for files that contain the support
> for this functionality). One major missing piece is signal support.
> Mapping ioctl arguments is another significant effort ...
> 
> John
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

Fantastic! I'll definately take a closer look now and will submit
whatever improvements I can!

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216




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From: rbradetich@uswest.net (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] sti broken in pa32 on B180
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To: joel.soete@freebel.net
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On Thu, Oct 04, 2001 at 12:24:56PM +0200, joel.soete@freebel.net wrote:
> Hi all,
> 
> I just come back to my hppa boxes (a 712/80 and a b180) and just co the last cvs 
> kernel (-pa32).
> I do usual make oldconfig; make dep ; make vmlinux (on the 712).

Try the following patch ... Thomas said this is what fixed STI on the
B-class machines for him.  If it works, I'll commit it.

Thanks,

- Ryan


diff -u -p -r1.37 inventory.c
--- inventory.c	2001/10/04 00:17:52	1.37
+++ inventory.c	2001/10/04 13:08:21
@@ -542,7 +542,7 @@ add_system_map_addresses(struct parisc_d
 		return;
 	}
 
-	for(i = 0; i < num_addrs; ++i) {
+	for(i = 0; i <= num_addrs; ++i) {
 		status = pdc_system_map_find_addrs(&addr_result, 
 						   module_instance, i);
 		if(PDC_RET_OK == status) {




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From: "Neulinger, Nathan" <nneul@umr.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Unaligned data reference...
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Just got this on a J210 built with a native mostly default cvs build of the
kernel.

Wasn't using the machine at the time (happened overnight) so don't know if
anything particular triggered it.

-- Nathan


Debian GNU/Linux testing/unstable inst2 ttyS0

inst2 login: swapper[0]: Unaligned data reference 28

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111000001111
r0-3     00000000 10317810 102836ac 0000000a
r4-7     109e8db2 10380ac8 0000000c 109e8d94
r8-11    00000000 00000001 00020000 27acb3a0
r12-15   00000000 0000004d 000000fd 0000001c
r16-19   10380580 f00000ac f00000a4 00000001
r20-23   00000000 00000109 27c3d000 0000000f
r24-27   00000000 10380ac8 27acb3a0 102d6010
r28-31   27c3d120 00000000 10380d80 101302d8
sr0-3    00000000 000001c4 00000000 000001c4
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10279908 1027990c
 IIR: 0c801093    ISR: 00000000  IOR: 109e8db2
 CPU:        0   CR30: 10380000 CR31: 10388000
 ORIG_R28: 00000000
Kernel panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing




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From: Jurij Smakov <jurij@lokmail.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Unaligned data reference...
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Hi Nathan!

Just yesterday Randolph posted a patch, which hopefully
fixes kernel space unaligned traps, which is exactly
what You need. I haven't tried it myself yet.

Cheers,

Jurij.







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Subject: RE: [parisc-linux] HP-UX binary compatibility
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Cool. Looks to be working. 

Looks like the most noticeable missing syscalls are the sig* ones as you've
mentioned below. (Would be nice to get a syscall wrapper lookup table so it
at least would spit out the name of the unwrapped syscall.)

Is there any reasonable way to trace the hpux binaries? strace doesn't see
anything past the exec. Looks like I'm able to run lmutil/lmgrd, but they
get a hostid of 0. 

It's the uname call that's returning the zero:

inst2:/products/hpux# chroot /products/hpux /uname -a
Linux inst2 2.4.9-pa #3 Thu O parisc inst2 #3 Thu O
inst2:/products/hpux# chroot /products/hpux /uname -i
inst2

troot-halley(11)> uname -a
HP-UX halley B.10.20 A 9000/735 2002000004 two-user license
troot-halley(12)> uname -i
2002000004

It's that 2002000004 that I need. That appears to be the idnumber field of
the uname results. Should be simple enough to adjust the system call code as
needed, especially since I'll just need to return a known value in my case.
(Presuming that's the mechanism the the lmgrd fetches is with. If it uses
the lanscan approach, that'll be harder.)

-- Nathan

> -----Original Message-----
> From: John Marvin [mailto:jsm@udlkern.fc.hp.com]
> Sent: Thursday, October 04, 2001 6:57 AM
> To: parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] HP-UX binary compatibility
> 
> 
> 
> I just committed a patch that restores some of the elementary HP-UX
> binary compatibility functionality. Shared libraries also work. But
> there is a ton of more work to do. Lots of wrappers need to be written
> (see the arch/parisc/hpux directory for files that contain the support
> for this functionality). One major missing piece is signal support.
> Mapping ioctl arguments is another significant effort ...
> 
> John
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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From: "Neulinger, Nathan" <nneul@umr.edu>
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Subject: RE: [parisc-linux] Unaligned data reference...
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To: "'Randolph Chung'" <randolph@tausq.org>
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Nope... just cvs updated and built new kernel this morning for hpux support.
Will let you know if it happens again.

Thanks!

-- Nathan

> -----Original Message-----
> From: Randolph Chung [mailto:randolph@tausq.org]
> Sent: Thursday, October 04, 2001 10:12 AM
> To: Neulinger, Nathan
> Subject: Re: [parisc-linux] Unaligned data reference...
> 
> 
> In reference to a message from Neulinger, Nathan, dated Oct 04:
> > Just got this on a J210 built with a native mostly default 
> cvs build of the
> > kernel.
> > 
> > Wasn't using the machine at the time (happened overnight) 
> so don't know if
> > anything particular triggered it.
> 
> I checked in the unaligned stuff yesterday. Is this in your build? Do
> you have a system.map file for this kernel?
> 
> randolph
> -- 
>    @..@                                         http://www.TauSq.org/
>   (----)
>  ( >__< )
>  ^^ ~~ ^^
> 




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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: [parisc-linux] sti broken in pa32 on B180
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To: Ryan Bradetich <rbradetich@uswest.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:12459

On Thu, Oct 04, 2001 at 07:13:50AM -0600, Ryan Bradetich wrote:
> On Thu, Oct 04, 2001 at 12:24:56PM +0200, joel.soete@freebel.net wrote:
> > Hi all,
> > 
> > I just come back to my hppa boxes (a 712/80 and a b180) and just co the last cvs 
> > kernel (-pa32).
> > I do usual make oldconfig; make dep ; make vmlinux (on the 712).
> 
> Try the following patch ... Thomas said this is what fixed STI on the
> B-class machines for him.  If it works, I'll commit it.

	for (i = 1; i <= num_addrs; i++) {

is what works for me without changing sticore.c.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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To: Grant Grundler <grundler@puffin.external.hp.com>
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On Tue, Oct 02, 2001 at 11:33:05AM -0600, Grant Grundler wrote:
> > The drives are hanging off of a FWSCSI controller. I'm right in thinking 
> > that the support for that is still not there, right?
> 
> In general the SCSI driver for Zalon works. The problem is with
> IO MMU support for devices below anything other than the first IO MMU.

I don't know how close a C110 is compared to a C100, but we had massive
filesystem corruptions on a C100 (and a C160) during the weekend in Oldenburg. 
It looked like the problems I had with my C200, which seem to be fixed
(I've compiled XFree and mozialla on that machine). I'll recheck on
my C100, when I get home again.

> XF86 is mostly working for B180 and 712's from reports on p-l mailing list.
> If you have Vis-EG (normal built-in) graphics, it might work for
> C110 as well since it's not using IO MMU (afaik).

it should work. To use stifb you need to remove the check for Artist
only (search for HACK:).

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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Subject: Re: [parisc-linux] Unaligned data reference...
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On Thu, Oct 04, 2001 at 08:24:38AM -0500, Neulinger, Nathan wrote:
> Just got this on a J210 built with a native mostly default cvs build of the
> kernel.

What CVS version were you using?  And can you tell us which function
0x10279908 is in?  

-- 
Revolutions do not require corporate support.




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It was from a couple days ago. And unfortunately, I don't have that
particular System.map any more. I'll let you know w/ more details if I see
it again. Most likely it was in your fixes, since I didn't have them yet.

-- Nathan

> -----Original Message-----
> From: Matthew Wilcox [mailto:willy@debian.org]
> Sent: Thursday, October 04, 2001 10:32 AM
> To: Neulinger, Nathan
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Unaligned data reference...
> 
> 
> On Thu, Oct 04, 2001 at 08:24:38AM -0500, Neulinger, Nathan wrote:
> > Just got this on a J210 built with a native mostly default 
> cvs build of the
> > kernel.
> 
> What CVS version were you using?  And can you tell us which function
> 0x10279908 is in?  
> 
> -- 
> Revolutions do not require corporate support.
> 




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From: Nathan Neulinger <nneul@umr.edu>
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Subject: [parisc-linux] Small patch to output hpux syscall names
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This causes the printk in sys_hpux.c to output the missing hpux syscall
name when known. Makes it a little easier to see what is unimplemented.

i.e.

Unimplemented HP-UX syscall emulation. Syscall #185 (sigprocmask)
  Args: 2 80014a80 bb002398 bb000da0 bb000da0 bb002398 800154b0
Unimplemented HP-UX syscall emulation. Syscall #185 (sigprocmask)
  Args: 2 bb002398 0 800154b0 bb000da0 44 800154b0
Unimplemented HP-UX syscall emulation. Syscall #155 (lockf)
  Args: 5 2 0 bb000da0 40003960 40003968 2f
Unimplemented HP-UX syscall emulation. Syscall #185 (sigprocmask)
  Args: 2 80014a80 bb002398 bb000da0 bb000da0 bb002398 800154b0

Quick question - I don't suppose there is any way that the sys_hpux.c stuff
could be made into a module? Sure would make debugging wrapper development
a lot easier.

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216

--zYM0uCDKw75PZbzx
Content-Type: text/plain; charset=us-ascii
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Index: arch/parisc/hpux/sys_hpux.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/hpux/sys_hpux.c,v
retrieving revision 1.9
diff -u -r1.9 sys_hpux.c
--- sys_hpux.c	2001/10/04 11:05:44	1.9
+++ sys_hpux.c	2001/10/04 16:02:37
@@ -342,10 +346,379 @@
 	/* NOTE: sc_num trashes arg8 for the few syscalls that actually
 	 * have a valid 8th argument.
 	 */
+	char *name = NULL;
+
+	switch(sc_num) {
+		case 0: name = "nosys"; break;
+		case 1: name = "exit"; break;
+		case 2: name = "fork"; break;
+		case 3: name = "read"; break;
+		case 4: name = "write"; break;
+		case 5: name = "open"; break;
+		case 6: name = "close"; break;
+		case 7: name = "wait"; break;
+		case 8: name = "creat"; break;
+		case 9: name = "link"; break;
+		case 10: name = "unlink"; break;
+		case 11: name = "execv"; break;
+		case 12: name = "chdir"; break;
+		case 13: name = "time"; break;
+		case 14: name = "mknod"; break;
+		case 15: name = "chmod"; break;
+		case 16: name = "chown"; break;
+		case 17: name = "brk"; break;
+		case 18: name = "lchmod"; break;
+		case 19: name = "lseek"; break;
+		case 20: name = "getpid"; break;
+		case 21: name = "mount"; break;
+		case 22: name = "umount"; break;
+		case 23: name = "setuid"; break;
+		case 24: name = "getuid"; break;
+		case 25: name = "stime"; break;
+		case 26: name = "ptrace"; break;
+		case 27: name = "alarm"; break;
+		case 29: name = "pause"; break;
+		case 30: name = "utime"; break;
+		case 31: name = "stty"; break;
+		case 32: name = "gtty"; break;
+		case 33: name = "access"; break;
+		case 34: name = "nice"; break;
+		case 35: name = "ftime"; break;
+		case 36: name = "sync"; break;
+		case 37: name = "kill"; break;
+		case 38: name = "stat"; break;
+		case 39: name = "setpgrp3"; break;
+		case 40: name = "lstat"; break;
+		case 41: name = "dup"; break;
+		case 42: name = "pipe"; break;
+		case 43: name = "times"; break;
+		case 44: name = "profil"; break;
+		case 45: name = "ki_call"; break;
+		case 46: name = "setgid"; break;
+		case 47: name = "getgid"; break;
+		case 51: name = "acct"; break;
+		case 52: name = "set_userthreadid"; break;
+		case 54: name = "ioctl"; break;
+		case 55: name = "reboot"; break;
+		case 56: name = "symlink"; break;
+		case 57: name = "utssys"; break;
+		case 58: name = "readlink"; break;
+		case 59: name = "execve"; break;
+		case 60: name = "umask"; break;
+		case 61: name = "chroot"; break;
+		case 62: name = "fcntl"; break;
+		case 63: name = "ulimit"; break;
+		case 66: name = "vfork"; break;
+		case 71: name = "mmap"; break;
+		case 73: name = "munmap"; break;
+		case 74: name = "mprotect"; break;
+		case 75: name = "madvise"; break;
+		case 76: name = "vhangup"; break;
+		case 77: name = "swapoff"; break;
+		case 79: name = "getgroups"; break;
+		case 80: name = "setgroups"; break;
+		case 81: name = "getpgrp2"; break;
+		case 82: name = "setpgid/setpgrp2"; break;
+		case 83: name = "setitimer"; break;
+		case 84: name = "wait3"; break;
+		case 85: name = "swapon"; break;
+		case 86: name = "getitimer"; break;
+		case 90: name = "dup2"; break;
+		case 92: name = "fstat"; break;
+		case 93: name = "select"; break;
+		case 95: name = "fsync"; break;
+		case 96: name = "setpriority"; break;
+		case 100: name = "getpriority"; break;
+		case 108: name = "sigvector"; break;
+		case 109: name = "sigblock"; break;
+		case 110: name = "sigsetmask"; break;
+		case 111: name = "sigpause"; break;
+		case 112: name = "sigstack"; break;
+		case 116: name = "gettimeofday"; break;
+		case 117: name = "getrusage"; break;
+		case 120: name = "readv"; break;
+		case 121: name = "writev"; break;
+		case 122: name = "settimeofday"; break;
+		case 123: name = "fchown"; break;
+		case 124: name = "fchmod"; break;
+		case 126: name = "setresuid"; break;
+		case 127: name = "setresgid"; break;
+		case 128: name = "rename"; break;
+		case 129: name = "truncate"; break;
+		case 130: name = "ftruncate"; break;
+		case 132: name = "sysconf"; break;
+		case 136: name = "mkdir"; break;
+		case 137: name = "rmdir"; break;
+		case 139: name = "sigcleanup"; break;
+		case 140: name = "setcore"; break;
+		case 142: name = "gethostid"; break;
+		case 143: name = "sethostid"; break;
+		case 144: name = "getrlimit"; break;
+		case 145: name = "setrlimit"; break;
+		case 148: name = "quotactl"; break;
+		case 149: name = "get_sysinfo"; break;
+		case 151: name = "privgrp"; break;
+		case 152: name = "rtprio"; break;
+		case 153: name = "plock"; break;
+		case 155: name = "lockf"; break;
+		case 156: name = "semget"; break;
+		case 158: name = "semop"; break;
+		case 159: name = "msgget"; break;
+		case 161: name = "msgsnd"; break;
+		case 162: name = "msgrcv"; break;
+		case 163: name = "shmget"; break;
+		case 165: name = "shmat"; break;
+		case 166: name = "shmdt"; break;
+		case 168: name = "csp/nsp_init"; break;
+		case 169: name = "cluster"; break;
+		case 170: name = "mkrnod"; break;
+		case 171: name = "test"; break;
+		case 172: name = "unsp_open"; break;
+		case 174: name = "getcontext"; break;
+		case 175: name = "osetcontext"; break;
+		case 176: name = "bigio"; break;
+		case 177: name = "pipenode"; break;
+		case 178: name = "lsync"; break;
+		case 179: name = "getmachineid"; break;
+		case 180: name = "cnodeid/mysite"; break;
+		case 181: name = "cnodes/sitels"; break;
+		case 182: name = "swapclients"; break;
+		case 183: name = "rmtprocess"; break;
+		case 184: name = "dskless_stats"; break;
+		case 185: name = "sigprocmask"; break;
+		case 186: name = "sigpending"; break;
+		case 187: name = "sigsuspend"; break;
+		case 188: name = "sigaction"; break;
+		case 190: name = "nfssvc"; break;
+		case 191: name = "getfh"; break;
+		case 192: name = "getdomainname"; break;
+		case 193: name = "setdomainname"; break;
+		case 194: name = "async_daemon"; break;
+		case 195: name = "getdirentries"; break;
+		case 196: name = "statfs"; break;
+		case 197: name = "fstatfs"; break;
+		case 198: name = "vfsmount"; break;
+		case 200: name = "waitpid"; break;
+		case 224: name = "sigsetreturn"; break;
+		case 225: name = "sigsetstatemask"; break;
+		case 226: name = "bfactl"; break;
+		case 227: name = "cs"; break;
+		case 228: name = "cds"; break;
+		case 230: name = "pathconf"; break;
+		case 231: name = "fpathconf"; break;
+		case 234: name = "nfs_fcntl"; break;
+		case 235: name = "ogetacl"; break;
+		case 236: name = "ofgetacl"; break;
+		case 237: name = "osetacl"; break;
+		case 238: name = "ofsetacl"; break;
+		case 239: name = "pstat"; break;
+		case 240: name = "getaudid"; break;
+		case 241: name = "setaudid"; break;
+		case 242: name = "getaudproc"; break;
+		case 243: name = "setaudproc"; break;
+		case 244: name = "getevent"; break;
+		case 245: name = "setevent"; break;
+		case 246: name = "audwrite"; break;
+		case 247: name = "audswitch"; break;
+		case 248: name = "audctl"; break;
+		case 249: name = "ogetaccess"; break;
+		case 250: name = "fsctl"; break;
+		case 251: name = "ulconnect"; break;
+		case 252: name = "ulcontrol"; break;
+		case 253: name = "ulcreate"; break;
+		case 254: name = "uldest"; break;
+		case 255: name = "ulrecv"; break;
+		case 256: name = "ulrecvcn"; break;
+		case 257: name = "ulsend"; break;
+		case 258: name = "ulshutdown"; break;
+		case 259: name = "swapfs"; break;
+		case 260: name = "fss"; break;
+		case 267: name = "tsync"; break;
+		case 268: name = "getnumfds"; break;
+		case 269: name = "poll"; break;
+		case 270: name = "getmsg"; break;
+		case 271: name = "putmsg"; break;
+		case 272: name = "fchdir"; break;
+		case 273: name = "getmount_cnt"; break;
+		case 274: name = "getmount_entry"; break;
+		case 275: name = "accept"; break;
+		case 276: name = "bind"; break;
+		case 277: name = "connect"; break;
+		case 278: name = "getpeername"; break;
+		case 279: name = "getsockname"; break;
+		case 280: name = "getsockopt"; break;
+		case 281: name = "listen"; break;
+		case 282: name = "recv"; break;
+		case 283: name = "recvfrom"; break;
+		case 284: name = "recvmsg"; break;
+		case 285: name = "send"; break;
+		case 286: name = "sendmsg"; break;
+		case 287: name = "sendto"; break;
+		case 288: name = "setsockopt"; break;
+		case 289: name = "shutdown"; break;
+		case 290: name = "socket"; break;
+		case 291: name = "socketpair"; break;
+		case 292: name = "proc_open"; break;
+		case 293: name = "proc_close"; break;
+		case 294: name = "proc_send"; break;
+		case 295: name = "proc_recv"; break;
+		case 296: name = "proc_sendrecv"; break;
+		case 297: name = "proc_syscall"; break;
+		case 298: name = "ipccreate"; break;
+		case 299: name = "ipcname"; break;
+		case 300: name = "ipcnamerase"; break;
+		case 301: name = "ipclookup"; break;
+		case 302: name = "ipcselect"; break;
+		case 303: name = "ipcconnect"; break;
+		case 304: name = "ipcrecvcn"; break;
+		case 305: name = "ipcsend"; break;
+		case 306: name = "ipcrecv"; break;
+		case 307: name = "ipcgetnodename"; break;
+		case 308: name = "ipcsetnodename"; break;
+		case 309: name = "ipccontrol"; break;
+		case 310: name = "ipcshutdown"; break;
+		case 311: name = "ipcdest"; break;
+		case 312: name = "semctl"; break;
+		case 313: name = "msgctl"; break;
+		case 314: name = "shmctl"; break;
+		case 315: name = "mpctl"; break;
+		case 316: name = "exportfs"; break;
+		case 317: name = "getpmsg"; break;
+		case 318: name = "putpmsg"; break;
+		case 319: name = "strioctl"; break;
+		case 320: name = "msync"; break;
+		case 321: name = "msleep"; break;
+		case 322: name = "mwakeup"; break;
+		case 323: name = "msem_init"; break;
+		case 324: name = "msem_remove"; break;
+		case 325: name = "adjtime"; break;
+		case 326: name = "kload"; break;
+		case 327: name = "fattach"; break;
+		case 328: name = "fdetach"; break;
+		case 329: name = "serialize"; break;
+		case 330: name = "statvfs"; break;
+		case 331: name = "fstatvfs"; break;
+		case 332: name = "lchown"; break;
+		case 333: name = "getsid"; break;
+		case 334: name = "sysfs"; break;
+		case 337: name = "sched_setparam"; break;
+		case 338: name = "sched_getparam"; break;
+		case 339: name = "sched_setscheduler"; break;
+		case 340: name = "sched_getscheduler"; break;
+		case 341: name = "sched_yield"; break;
+		case 342: name = "sched_get_priority_max"; break;
+		case 343: name = "sched_get_priority_min"; break;
+		case 344: name = "sched_rr_get_interval"; break;
+		case 345: name = "clock_settime"; break;
+		case 346: name = "clock_gettime"; break;
+		case 347: name = "clock_getres"; break;
+		case 348: name = "timer_create"; break;
+		case 349: name = "timer_delete"; break;
+		case 350: name = "timer_settime"; break;
+		case 351: name = "timer_gettime"; break;
+		case 352: name = "timer_getoverrun"; break;
+		case 353: name = "nanosleep"; break;
+		case 354: name = "toolbox"; break;
+		case 356: name = "getdents"; break;
+		case 357: name = "getcontext"; break;
+		case 358: name = "sysinfo"; break;
+		case 359: name = "fcntl64"; break;
+		case 360: name = "ftruncate64"; break;
+		case 361: name = "fstat64"; break;
+		case 362: name = "getdirentries64"; break;
+		case 363: name = "getrlimit64"; break;
+		case 364: name = "lockf64"; break;
+		case 365: name = "lseek64"; break;
+		case 366: name = "lstat64"; break;
+		case 367: name = "mmap64"; break;
+		case 368: name = "setrlimit64"; break;
+		case 369: name = "stat64"; break;
+		case 370: name = "truncate64"; break;
+		case 371: name = "ulimit64"; break;
+		case 380: name = "setcontext"; break;
+		case 381: name = "sigaltstack"; break;
+		case 382: name = "waitid"; break;
+		case 383: name = "setpgrp"; break;
+		case 384: name = "recvmsg2"; break;
+		case 385: name = "sendmsg2"; break;
+		case 386: name = "socket2"; break;
+		case 387: name = "socketpair2"; break;
+		case 388: name = "setregid"; break;
+		case 389: name = "lwp_create"; break;
+		case 390: name = "lwp_terminate"; break;
+		case 391: name = "lwp_wait"; break;
+		case 392: name = "lwp_suspend"; break;
+		case 393: name = "lwp_resume"; break;
+		case 394: name = "lwp_self"; break;
+		case 395: name = "lwp_abort_syscall"; break;
+		case 396: name = "lwp_info"; break;
+		case 397: name = "lwp_kill"; break;
+		case 398: name = "ksleep"; break;
+		case 399: name = "kwakeup"; break;
+		case 400: name = "ksleep_abort"; break;
+		case 401: name = "lwp_proc_info"; break;
+		case 402: name = "lwp_exit"; break;
+		case 403: name = "lwp_continue"; break;
+		case 404: name = "getacl"; break;
+		case 405: name = "fgetacl"; break;
+		case 406: name = "setacl"; break;
+		case 407: name = "fsetacl"; break;
+		case 408: name = "getaccess"; break;
+		case 409: name = "lwp_mutex_init"; break;
+		case 410: name = "lwp_mutex_lock_sys"; break;
+		case 411: name = "lwp_mutex_unlock"; break;
+		case 412: name = "lwp_cond_init"; break;
+		case 413: name = "lwp_cond_signal"; break;
+		case 414: name = "lwp_cond_broadcast"; break;
+		case 415: name = "lwp_cond_wait_sys"; break;
+		case 416: name = "lwp_getscheduler"; break;
+		case 417: name = "lwp_setscheduler"; break;
+		case 418: name = "lwp_getprivate"; break;
+		case 419: name = "lwp_setprivate"; break;
+		case 420: name = "lwp_detach"; break;
+		case 421: name = "mlock"; break;
+		case 422: name = "munlock"; break;
+		case 423: name = "mlockall"; break;
+		case 424: name = "munlockall"; break;
+		case 425: name = "shm_open"; break;
+		case 426: name = "shm_unlink"; break;
+		case 427: name = "sigqueue"; break;
+		case 428: name = "sigwaitinfo"; break;
+		case 429: name = "sigtimedwait"; break;
+		case 430: name = "sigwait"; break;
+		case 431: name = "aio_read"; break;
+		case 432: name = "aio_write"; break;
+		case 433: name = "lio_listio"; break;
+		case 434: name = "aio_error"; break;
+		case 435: name = "aio_return"; break;
+		case 436: name = "aio_cancel"; break;
+		case 437: name = "aio_suspend"; break;
+		case 438: name = "aio_fsync"; break;
+		case 439: name = "mq_open"; break;
+		case 440: name = "mq_unlink"; break;
+		case 441: name = "mq_send"; break;
+		case 442: name = "mq_receive"; break;
+		case 443: name = "mq_notify"; break;
+		case 444: name = "mq_setattr"; break;
+		case 445: name = "mq_getattr"; break;
+		case 446: name = "ksem_open"; break;
+		case 447: name = "ksem_unlink"; break;
+		case 448: name = "ksem_close"; break;
+		case 449: name = "ksem_destroy"; break;
+		case 450: name = "lw_sem_incr"; break;
+		case 451: name = "lw_sem_decr"; break;
+		case 452: name = "lw_sem_read"; break;
+		case 453: name = "mq_close"; break;
+	};
 
-	printk(KERN_DEBUG \
-		"Unimplemented HP-UX syscall emulation. Syscall #%d\n",
+	if ( name ) {
+		printk(KERN_DEBUG "Unimplemented HP-UX syscall emulation. Syscall #%lu (%s)\n",
+		sc_num, name);
+	} else {
+		printk(KERN_DEBUG "Unimplemented unknown HP-UX syscall emulation. Syscall #%lu\n",
 		sc_num);
+	}
+	
 	printk(KERN_DEBUG "  Args: %lx %lx %lx %lx %lx %lx %lx\n",
 		arg1, arg2, arg3, arg4, arg5, arg6, arg7);
 

--zYM0uCDKw75PZbzx--




From - Thu Nov 08 21:19:37 2018
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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: [parisc-linux] Unaligned data reference...
Date: Thu, 4 Oct 2001 09:31:52 -0700 (PDT)
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To: nneul@umr.edu (Neulinger, Nathan)
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Xref: news.gmane.org gmane.linux.ports.parisc:12464

Re:

> inst2 login: swapper[0]: Unaligned data reference 28
...
> r4-7     109e8db2 10380ac8 0000000c 109e8d94
...
>  IIR: 0c801093    ISR: 00000000  IOR: 109e8db2

That's:   LDWS     0(0,4),19
and R4 is $109e8db2   (which is only 2-byte aligned)

BTW, pardon me for asking what might be an easy question, but...
how does one disassemble an instruction on HP-UX / Linux?

thanks,

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com




From - Thu Nov 08 21:19:38 2018
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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] sti broken in pa32 on B180
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Xref: news.gmane.org gmane.linux.ports.parisc:12465

Hi Ryan,

Sorry but patch does not help.

Thanks any way,
        Joel

Quoting Ryan Bradetich <rbradetich@uswest.net>:

> On Thu, Oct 04, 2001 at 12:24:56PM +0200, joel.soete@freebel.net wrote:
> > Hi all,
> > 
> > I just come back to my hppa boxes (a 712/80 and a b180) and just co
> the last cvs 
> > kernel (-pa32).
> > I do usual make oldconfig; make dep ; make vmlinux (on the 712).
> 
> Try the following patch ... Thomas said this is what fixed STI on the
> B-class machines for him.  If it works, I'll commit it.
> 
> Thanks,
> 
> - Ryan
> 
> 
> diff -u -p -r1.37 inventory.c
> --- inventory.c	2001/10/04 00:17:52	1.37
> +++ inventory.c	2001/10/04 13:08:21
> @@ -542,7 +542,7 @@ add_system_map_addresses(struct parisc_d
>  		return;
>  	}
>  
> -	for(i = 0; i < num_addrs; ++i) {
> +	for(i = 0; i <= num_addrs; ++i) {
>  		status = pdc_system_map_find_addrs(&addr_result, 
>  						   module_instance, i);
>  		if(PDC_RET_OK == status) {
> 
> 


-------------------------------------------------
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Subject: RE: [parisc-linux] HP-UX binary compatibility
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I'm just getting my feet wet in this, but this didn't work:

int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
{
/*Unimplemented HP-UX syscall emulation. Syscall #334 (sysfs)
  Args: 1 80057bf4 0 400179f0 0 0 0 */

        if ( opcode == 1 ) { /* GETFSIND */
                printk(KERN_DEBUG "hpux_sysfs called with '%s'", (char
*)arg1);
        }

        printk(KERN_DEBUG "hpux_sysfs called with opcode = %d\n", opcode);
}

If I comment out that if block, it runs just fine. Is there a call I should
use to make sure an address is safe prior to using it? (i.e. so I don't
cause an oops?) I get an immediate dump on the console as soon as I run the
app I'm testing.

BTW, w/ a couple of small stub wrappers, I've been able to get flexlm to run
and serve licenses, and have lmdiag say it's working (and can check out
licenses), but for some reason client applications are not working, so I'm
just trying to add any missing syscals it uses where possible to see if I
can figure out the problem. 

-- Nathan

> -----Original Message-----
> From: John Marvin [mailto:jsm@udlkern.fc.hp.com]
> Sent: Thursday, October 04, 2001 6:57 AM
> To: parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] HP-UX binary compatibility
> 
> 
> 
> I just committed a patch that restores some of the elementary HP-UX
> binary compatibility functionality. Shared libraries also work. But
> there is a ton of more work to do. Lots of wrappers need to be written
> (see the arch/parisc/hpux directory for files that contain the support
> for this functionality). One major missing piece is signal support.
> Mapping ioctl arguments is another significant effort ...
> 
> John
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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On Thu, Oct 04, 2001 at 12:58:18PM -0500, Neulinger, Nathan wrote:
> int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
> {
> /*Unimplemented HP-UX syscall emulation. Syscall #334 (sysfs)
>   Args: 1 80057bf4 0 400179f0 0 0 0 */
> 
>         if ( opcode == 1 ) { /* GETFSIND */
>                 printk(KERN_DEBUG "hpux_sysfs called with '%s'", (char
> *)arg1);
>         }
> 
>         printk(KERN_DEBUG "hpux_sysfs called with opcode = %d\n", opcode);
> }

You can't do that.  `arg1' points to a user address, not a kernel
address.  You need to use things like strlen_user and copy_from_user --
see include/asm-parisc/uaccess.h.

-- 
Revolutions do not require corporate support.




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From: "Neulinger, Nathan" <nneul@umr.edu>
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Subject: RE: [parisc-linux] HP-UX binary compatibility
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Hey, thanks. That's exactly what I needed... Got it working now. 

I've added a bunch more direct syscall calls (for the most part, call
behavior looked close enough or same in man pages) and some stub wrappers.
statfs seems semi-functional as moment, but not quite correct since a few
fields are returned as garbage (just calling real one at moment and ignoring
extra hp fields).

I'll send a patch tomorrow maybe to add some of these. i'm sure some leaves
a lot to be desired, but it's at least a bit more functional for some stuff
I've tested. 

-- Nathan

> -----Original Message-----
> From: Matthew Wilcox [mailto:willy@debian.org]
> Sent: Thursday, October 04, 2001 3:10 PM
> To: Neulinger, Nathan
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] HP-UX binary compatibility
> 
> 
> On Thu, Oct 04, 2001 at 12:58:18PM -0500, Neulinger, Nathan wrote:
> > int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
> > {
> > /*Unimplemented HP-UX syscall emulation. Syscall #334 (sysfs)
> >   Args: 1 80057bf4 0 400179f0 0 0 0 */
> > 
> >         if ( opcode == 1 ) { /* GETFSIND */
> >                 printk(KERN_DEBUG "hpux_sysfs called with 
> '%s'", (char
> > *)arg1);
> >         }
> > 
> >         printk(KERN_DEBUG "hpux_sysfs called with opcode = 
> %d\n", opcode);
> > }
> 
> You can't do that.  `arg1' points to a user address, not a kernel
> address.  You need to use things like strlen_user and 
> copy_from_user --
> see include/asm-parisc/uaccess.h.
> 
> -- 
> Revolutions do not require corporate support.
> 




From - Thu Nov 08 21:19:38 2018
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From: "Neulinger, Nathan" <nneul@umr.edu>
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Subject: RE: [parisc-linux] HP-UX binary compatibility
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Got a question of how best to do something - flexlm does the lanscan style
open of /dev/lan, /dev/lan0...15 to try and figure out the local hardware
address of the machine:

24240: open("/dev/lan", O_RDONLY) = -1 ENOENT (No such file or directory)
24240: open("/dev/lan", O_RDONLY) = -1 ENOENT (No such file or directory)
24240: open("/dev/lan0", O_RDONLY) = 9
24240: ioctl(9 [/dev/lan0], NETSTAT, 0x7b03bc28) = 0
24240: sigprocmask(2, 0x7b038a80, 0x7b03cf28) = 0
24240: sigprocmask(2, 0x7b03cf28, 0) = 0
24240: close(9 [/dev/lan0]) = 0
24240: time(0) = 0x3bbcd084
24240: write(1 [fluent.log], 0x7b028000, 66) = 66

What do y'all think is the best way of dealing with this? I could add the
wrapper that traps the open system call, and then special case handle an
open of /dev/lan*, and somehow keep track of that file descriptor in a
global var of some sort, and then test for that fd in a wrapped ioctl
handler? 

Or would there be some nicer way of dealing with this?

Then again, I suppose I could also just return legit info on any NETSTAT
ioctl on any open fd and just have the open of /dev/lan really open
/dev/null. That might be the simplest way to get it working. 

Of course, at the moment, flexlm isn't working for the uname case either -
interestingly, lmstat and lmdiag say it's working fine, but the actual app
that tries to check out a license gets a "internal license error", so I'm
missing something somewhere still, just got to find it. Sure would be nice
if strace worked on hpux executables or the ptrace call worked. 

-- Nathan

> -----Original Message-----
> From: Neulinger, Nathan 
> Sent: Thursday, October 04, 2001 3:57 PM
> To: 'Matthew Wilcox'
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: RE: [parisc-linux] HP-UX binary compatibility
> 
> 
> Hey, thanks. That's exactly what I needed... Got it working now. 
> 
> I've added a bunch more direct syscall calls (for the most 
> part, call behavior looked close enough or same in man pages) 
> and some stub wrappers. statfs seems semi-functional as 
> moment, but not quite correct since a few fields are returned 
> as garbage (just calling real one at moment and ignoring 
> extra hp fields).
> 
> I'll send a patch tomorrow maybe to add some of these. i'm 
> sure some leaves a lot to be desired, but it's at least a bit 
> more functional for some stuff I've tested. 
> 
> -- Nathan
> 
> > -----Original Message-----
> > From: Matthew Wilcox [mailto:willy@debian.org]
> > Sent: Thursday, October 04, 2001 3:10 PM
> > To: Neulinger, Nathan
> > Cc: parisc-linux@lists.parisc-linux.org
> > Subject: Re: [parisc-linux] HP-UX binary compatibility
> > 
> > 
> > On Thu, Oct 04, 2001 at 12:58:18PM -0500, Neulinger, Nathan wrote:
> > > int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
> > > {
> > > /*Unimplemented HP-UX syscall emulation. Syscall #334 (sysfs)
> > >   Args: 1 80057bf4 0 400179f0 0 0 0 */
> > > 
> > >         if ( opcode == 1 ) { /* GETFSIND */
> > >                 printk(KERN_DEBUG "hpux_sysfs called with 
> > '%s'", (char
> > > *)arg1);
> > >         }
> > > 
> > >         printk(KERN_DEBUG "hpux_sysfs called with opcode = 
> > %d\n", opcode);
> > > }
> > 
> > You can't do that.  `arg1' points to a user address, not a kernel
> > address.  You need to use things like strlen_user and 
> > copy_from_user --
> > see include/asm-parisc/uaccess.h.
> > 
> > -- 
> > Revolutions do not require corporate support.
> > 
> 




From - Thu Nov 08 21:19:38 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] A todo entry
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Someone was asking for a job to do.  Here's one.

In include/asm-parisc/uaccess.h, we have a couple of functions which
look like this:

#define __get_user(x,ptr)                               \
({                                                      \
        register long __gu_err __asm__ ("r8") = 0;      \
        register long __gu_val __asm__ ("r9") = 0;      \
                                                        \
        if (segment_eq(get_fs(),KERNEL_DS)) {           \
            switch (sizeof(*(ptr))) {                   \
            case 1: __get_kernel_asm("ldb",ptr); break; \
            case 2: __get_kernel_asm("ldh",ptr); break; \
            case 4: __get_kernel_asm("ldw",ptr); break; \
            case 8: __get_kernel_asm("ldd",ptr); break; \
            default: BUG(); break;                      \
            }                                           \
        }                                               \
        else {                                          \
            switch (sizeof(*(ptr))) {                   \
            case 1: __get_user_asm("ldb",ptr); break;   \
            case 2: __get_user_asm("ldh",ptr); break;   \
            case 4: __get_user_asm("ldw",ptr); break;   \
            case 8: __get_user_asm("ldd",ptr); break;   \
            default: BUG(); break;                      \
            }                                           \
        }                                               \
                                                        \
        (x) = (__typeof__(*(ptr))) __gu_val;            \
        __gu_err;                                       \
})

This is rather suboptimal.  The way it should be done is to always
access userspace through %sr2 (currently listed as unused).  Set sr2
to the same value as sr3 normally.  Set it to 0 when someone does a
set_fs(KERNEL_DS), and to sr3 when USER_DS.  get_fs() should return the
value of sr2.  None of these functions are called frequently, so there's
no need to cache the values outside the space registers.

This probably isn't a big job, but there's probably some subtlety I've
overlooked.

-- 
Revolutions do not require corporate support.




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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] sti broken in pa32 on B180
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Cc: Ryan Bradetich <rbradetich@uswest.net>, joel.soete@freebel.net,
	tsbogend@alpha.franken.de
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Hi Ryan and Thomas,

for(i = 1; i <= num_addrs; ++i) {
        ^
works also for me.

Nervertheless on this b180 the (ps/2) kbd problem is reproductible:
disconnect, reconnect the kdb then touch any key then:
"keyboard: unrecognised scancode (7f) - Ignored"
and I do not find a way to reinit the this kdb.
(System still running, just loss the access to the console)

Thanks in advance for addtional help,
        Joel


Quoting joel.soete@freebel.net:

> Hi Ryan,
> 
> Sorry but patch does not help.
> 
> Thanks any way,
>         Joel
> 
> Quoting Ryan Bradetich <rbradetich@uswest.net>:
> 
> > On Thu, Oct 04, 2001 at 12:24:56PM +0200, joel.soete@freebel.net
> wrote:
> > > Hi all,
> > > 
> > > I just come back to my hppa boxes (a 712/80 and a b180) and just co
> > the last cvs 
> > > kernel (-pa32).
> > > I do usual make oldconfig; make dep ; make vmlinux (on the 712).
> > 
> > Try the following patch ... Thomas said this is what fixed STI on the
> > B-class machines for him.  If it works, I'll commit it.
> > 
> > Thanks,
> > 
> > - Ryan
> > 
> > 
> > diff -u -p -r1.37 inventory.c
> > --- inventory.c	2001/10/04 00:17:52	1.37
> > +++ inventory.c	2001/10/04 13:08:21
> > @@ -542,7 +542,7 @@ add_system_map_addresses(struct parisc_d
> >  		return;
> >  	}
> >  
> > -	for(i = 0; i < num_addrs; ++i) {
> > +	
> >  		status = pdc_system_map_find_addrs(&addr_result, 
> >  						   module_instance, i);
> >  		if(PDC_RET_OK == status) {
> > 
> > 
> 
> 
> -------------------------------------------------
> This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)
> 
> 


-------------------------------------------------
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From: Helge Deller <helge.deller@sap.com>
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Subject: Re: [parisc-linux] HP-UX binary compatibility
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Hi Nathan,

On Thursday 04 October 2001 17:07, Neulinger, Nathan wrote:
>
> troot-halley(11)> uname -a
> HP-UX halley B.10.20 A 9000/735 2002000004 two-user license
> troot-halley(12)> uname -i
> 2002000004
>
> It's that 2002000004 that I need. 

I currently don't have access to a parisc-linux machine, but out of 
my head I think you may get that number from the /proc/cpuinfo file 
(maybe it is displayed there in hex) and may use it from the variable
behind this output for your syscall wrapper.

Greetings,
Helge




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Xref: news.gmane.org gmane.linux.ports.parisc:12473

> This is rather suboptimal.  The way it should be done is to always
> access userspace through %sr2 (currently listed as unused).  Set sr2
> to the same value as sr3 normally.  Set it to 0 when someone does a
> set_fs(KERNEL_DS), and to sr3 when USER_DS.  get_fs() should return the
> value of sr2.  None of these functions are called frequently, so there's
> no need to cache the values outside the space registers.
>
> This probably isn't a big job, but there's probably some subtlety I've
> overlooked.

The subtlety you overlooked is that although sr2 has no current use
in kernel space, it has to be set to 0 while in user space, because
sr2 is used as a pointer to the linux gateway page for system calls.
Right now we initialize it to zero once for the process and save and
restore it on context switches, i.e. a program will only mess itself
up if it changes the value.

I am almost certain that linux never goes to user space while fs is
set to KERNEL_DS. In general fs is normally set to USER_DS, and
only set to KERNEL_DS for a short period of time, and then restored.
However, I do believe it is possible to sleep while fs is set to
KERNEL_DS.

Anyway, perhaps you were already aware of this. It means that you can't
just set sr2 once from sr3, you need to set it every time sr3 is set,
i.e. upon entry to the kernel, at fork/exec time (add one line to
load_context() in pgalloc.h). It also means that sr2 needs to be set
back to zero when returning to user space (through a variety of paths).

Also, in order for set_fs(old_fs) to work correctly you need to do
either:

    1) Set sr2 to 0 when the argument to set_fs is KERNEL_DS, and KERNEL_DS
    must be defined as 0 (it is currently). Set sr2 to sr3 when the
    argument is any non-zero value. get_fs can then return the value of
    sr2.

    2) Set sr2 to 0 when the argument to set_fs is KERNEL_DS. Set sr2
    to sr3 when the argument is USER_DS. get_fs should return KERNEL_DS
    if sr2 is 0. get_fs should return USER_DS otherwise. I prefer this.

John




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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] sti broken in pa32 on B180
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Hi Joel,

First of all, the STI console and fb is dead on my B132. And now, let's
go to the kbd.

	If you tried the disconnect/reconnect trial of strength on your PC,
you should see with showkey --scancode a scancode 0xAA that tells the
controller that a kbd has been reconnected.
On my B132, I don't see that all the time :( and when this occurs, it is
when the kbd do an timeout/parity error.
And this is a big trouble b/c it seems that we should look at the state
of the controller all the time and it is not a solution.
It seems to be integrated in the chip on PCs and on HP boxes, it is not
designed for that case, it seems.

I have two things to say but I need an Hardware HP guy to answer those:
	-1) Page 69 of LASI_ers.ps, note 2 is mentionned but I can see only the
note 1. Why?
	-2) On my B132, in boot_admin, when you press Escape Key too much (more
than 2 times), you can't type anything!
you need to press enter and then you can type. This is reproductible! Is
it a normal behaviour?

> Nervertheless on this b180 the (ps/2) kbd problem is reproductible:
> disconnect, reconnect the kdb then touch any key then:
> "keyboard: unrecognised scancode (7f) - Ignored"
> and I do not find a way to reinit the this kdb.
> (System still running, just loss the access to the console)
> 
> Thanks in advance for addtional help,
>         Joel

Thanks for any answer or advice, Thomas.
ESIEE Team




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] a todo entry
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On Fri, Oct 05, 2001 at 03:03:25AM -0600, John Marvin wrote:
>     1) Set sr2 to 0 when the argument to set_fs is KERNEL_DS, and KERNEL_DS
>     must be defined as 0 (it is currently). Set sr2 to sr3 when the
>     argument is any non-zero value. get_fs can then return the value of
>     sr2.
> 
>     2) Set sr2 to 0 when the argument to set_fs is KERNEL_DS. Set sr2
>     to sr3 when the argument is USER_DS. get_fs should return KERNEL_DS
>     if sr2 is 0. get_fs should return USER_DS otherwise. I prefer this.

I was thinking along the lines of:

#define KERNEL_DS 0
#define USER_DS mfsp(3)
#define get_ds() (KERNEL_DS)
#define get_fs() mfsp(2)
#define set_fs(x) mtsp(x, 3)

except that the first argument to mtsp needs to be a register, not a
value, but that's solvable, I think.

-- 
Revolutions do not require corporate support.




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] HP-UX binary compatibility
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Xref: news.gmane.org gmane.linux.ports.parisc:12476

On Thu, Oct 04, 2001 at 04:16:52PM -0500, Neulinger, Nathan wrote:
> Got a question of how best to do something - flexlm does the lanscan style
> open of /dev/lan, /dev/lan0...15 to try and figure out the local hardware
> address of the machine:
> 
> 24240: open("/dev/lan", O_RDONLY) = -1 ENOENT (No such file or directory)
> 24240: open("/dev/lan", O_RDONLY) = -1 ENOENT (No such file or directory)
> 24240: open("/dev/lan0", O_RDONLY) = 9
> 24240: ioctl(9 [/dev/lan0], NETSTAT, 0x7b03bc28) = 0
> 24240: sigprocmask(2, 0x7b038a80, 0x7b03cf28) = 0
> 24240: sigprocmask(2, 0x7b03cf28, 0) = 0
> 24240: close(9 [/dev/lan0]) = 0
> 24240: time(0) = 0x3bbcd084
> 24240: write(1 [fluent.log], 0x7b028000, 66) = 66
> 
> What do y'all think is the best way of dealing with this? I could add the
> wrapper that traps the open system call, and then special case handle an
> open of /dev/lan*, and somehow keep track of that file descriptor in a
> global var of some sort, and then test for that fd in a wrapped ioctl
> handler? 
> 
> Or would there be some nicer way of dealing with this?
> 
> Then again, I suppose I could also just return legit info on any NETSTAT
> ioctl on any open fd and just have the open of /dev/lan really open
> /dev/null. That might be the simplest way to get it working. 

One alternative approach might be to load a kernel module that provides
a driver for /dev/lan.




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From: Nathan Neulinger <nneul@umr.edu>
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Subject: [parisc-linux] Table version of syscall names patch and some simple wrappers
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This switches the callnames stuff into a table instead of a large switch. It
also includes a couple of simple wrappers that helped flexlm get a bit further
in it's execution. (Looks like it's working from lmdiag/lmstat, but doesn't
actually work from the applications yet unfortunately.)

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216

--fdj2RfSjLxBAspz7
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="sys_hpux_calls.diff"

Index: arch/parisc/hpux/entry_hpux.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/hpux/entry_hpux.S,v
retrieving revision 1.17
diff -u -r1.17 entry_hpux.S
--- entry_hpux.S	2001/10/04 11:05:44	1.17
+++ entry_hpux.S	2001/10/05 14:22:34
@@ -56,7 +56,7 @@
 	ENTRY_NAME(sys_sync)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(sys_newstat)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
+	ENTRY_NAME(hpux_setpgrp3)
 	ENTRY_NAME(sys_newlstat)	/* 40 */
 	ENTRY_NAME(sys_dup)
 	ENTRY_NAME(hpux_pipe_wrapper)
@@ -100,13 +100,13 @@
 	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 80 */
 	ENTRY_NAME(sys_getpgid)
 	ENTRY_NAME(sys_setpgid)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
+	ENTRY_NAME(sys_setitimer)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 85 */
+	ENTRY_NAME(sys_getitimer)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(sys_dup2)		/* 90 */
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(sys_newfstat)
@@ -160,9 +160,9 @@
 	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 140 */
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 145 */
+	ENTRY_NAME(sys_getrlimit)
+	ENTRY_NAME(sys_setrlimit)      /* 145 */
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
@@ -172,7 +172,7 @@
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 155 */
+	ENTRY_NAME(hpux_lockf)      /* 155 */
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
@@ -202,7 +202,7 @@
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 185 */
+	ENTRY_NAME(sys_sigprocmask)      /* 185 */
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
@@ -213,10 +213,10 @@
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 195 */
+	ENTRY_NAME(hpux_statfs)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(sys_waitpid)	/* 200 */
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
@@ -350,8 +350,8 @@
 	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 330 */
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(sys_lchown)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
+	ENTRY_NAME(hpux_sysfs)
 	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 335 */
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
@@ -399,8 +399,8 @@
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 380 */
 	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
+	ENTRY_NAME(hpux_setpgrp)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 385 */
 	ENTRY_NAME(hpux_unimplemented_wrapper)
Index: arch/parisc/hpux/sys_hpux.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/hpux/sys_hpux.c,v
retrieving revision 1.9
diff -u -r1.9 sys_hpux.c
--- sys_hpux.c	2001/10/04 11:05:44	1.9
+++ sys_hpux.c	2001/10/05 14:22:34
@@ -9,6 +9,9 @@
 #include <linux/utsname.h>
 #include <asm/errno.h>
 #include <asm/uaccess.h>
+#include <linux/vmalloc.h>
+#include <asm/pgalloc.h>
+#include <linux/slab.h>
 
 unsigned long sys_brk(unsigned long addr);
  
@@ -41,6 +44,17 @@
 	return sys_waitpid(-1, stat_loc, 0);
 }
 
+int hpux_setpgrp(void)
+{
+	extern int sys_setpgid(int, int);
+	return sys_setpgid(0,0);
+}
+
+int hpux_setpgrp3(void)
+{
+	return hpux_setpgrp();
+}
+
 #define _SC_CPU_VERSION	10001
 #define _SC_OPEN_MAX	4
 #define CPU_PA_RISC1_1	0x210
@@ -129,7 +143,67 @@
 	return err;
 }
 
+/*
+ * Wrapper for hpux statfs call. At the moment, just calls the linux native one
+ * and ignores the extra fields at the end of the hpux statfs struct.
+ *
+ */
+
+typedef int32_t hpux_fsid_t[2];              /* file system ID type */
+typedef uint16_t hpux_site_t;
+
+struct hpux_statfs {
+     int32_t f_type;                    /* type of info, zero for now */
+     int32_t f_bsize;                   /* fundamental file system block size */
+     int32_t f_blocks;                  /* total blocks in file system */
+     int32_t f_bfree;                   /* free block in fs */
+     int32_t f_bavail;                  /* free blocks avail to non-superuser */
+     int32_t f_files;                   /* total file nodes in file system */
+     int32_t f_ffree;                   /* free file nodes in fs */
+     hpux_fsid_t  f_fsid;                    /* file system ID */
+     int32_t f_magic;                   /* file system magic number */
+     int32_t f_featurebits;             /* file system features */
+     int32_t f_spare[4];                /* spare for later */
+     hpux_site_t  f_cnode;                   /* cluster node where mounted */
+     int16_t f_pad;
+};
+
+/* hpux statfs */
+int hpux_statfs(const char *path, struct hpux_statfs *buf)
+{
+	int error;
+	int len;
+	char *kpath;
+
+	len = strlen_user((char *)path); 
+
+	kpath = (char *) kmalloc(len+1, GFP_KERNEL);
+	if ( !kpath ) {
+	printk(KERN_DEBUG "failed to kmalloc kpath\n");
+	return 0;
+	}
+
+	if ( copy_from_user(kpath, (char *)path, len+1) ) {
+	printk(KERN_DEBUG "failed to copy_from_user kpath\n");
+	kfree(kpath);
+	return 0;
+	}
+
+	printk(KERN_DEBUG "hpux_statfs(\"%s\",-)\n", kpath);
+
+	kfree(kpath);
+
+	/* just fake it, beginning of structures match */
+	extern int sys_statfs(const char *, struct statfs *);
+	error = sys_statfs(path, (struct statfs *) buf);
+
+	/* ignoring rest of statfs struct, but it should be zeros. Need to do 
+		something with f_fsid[1], which is the fstype for sysfs */
+
+	return error;
+}
 
+
 /*  This function is called from hpux_utssys(); HP-UX implements
  *  uname() as an option to utssys().
  *
@@ -334,6 +412,517 @@
 	return error;
 }
 
+/* lies - says it works, but it really didn't lock anything */
+int hpux_lockf(int fildes, int function, off_t size)
+{
+	return 0;
+}
+
+int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
+{
+	char *fsname = NULL;
+	int len = 0;
+	int fstype;
+
+/*Unimplemented HP-UX syscall emulation. Syscall #334 (sysfs)
+  Args: 1 80057bf4 0 400179f0 0 0 0 */
+	printk(KERN_DEBUG "in hpux_sysfs\n");
+	printk(KERN_DEBUG "hpux_sysfs called with opcode = %d\n", opcode);
+	printk(KERN_DEBUG "hpux_sysfs called with arg1='%lx'\n", arg1);
+
+	if ( opcode == 1 ) { /* GETFSIND */	
+		len = strlen_user((char *)arg1);
+		printk(KERN_DEBUG "len of arg1 = %d\n", len);
+
+		fsname = (char *) kmalloc(len+1, GFP_KERNEL);
+		if ( !fsname ) {
+			printk(KERN_DEBUG "failed to kmalloc fsname\n");
+			return 0;
+		}
+
+		if ( copy_from_user(fsname, (char *)arg1, len+1) ) {
+			printk(KERN_DEBUG "failed to copy_from_user fsname\n");
+			kfree(fsname);
+			return 0;
+		}
+
+		printk(KERN_DEBUG "that is '%s' as (char *)\n", fsname);
+		if ( !strcmp(fsname, "hfs") ) {
+			fstype = 0;
+		} else {
+			fstype = 0;
+		};
+
+		kfree(fsname);
+
+		printk(KERN_DEBUG "returning fstype=%d\n", fstype);
+		return fstype; /* something other than default */
+	}
+
+
+	return 0;
+}
+
+
+/* Table of syscall names and handle for unimplemented routines */
+static const char *syscall_names[] = {
+	"nosys",                  /* 0 */
+	"exit",                  
+	"fork",                  
+	"read",                  
+	"write",                 
+	"open",                   /* 5 */
+	"close",                 
+	"wait",                  
+	"creat",                 
+	"link",                  
+	"unlink",                 /* 10 */
+	"execv",                 
+	"chdir",                 
+	"time",                  
+	"mknod",                 
+	"chmod",                  /* 15 */
+	"chown",                 
+	"brk",                   
+	"lchmod",                
+	"lseek",                 
+	"getpid",                 /* 20 */
+	"mount",                 
+	"umount",                
+	"setuid",                
+	"getuid",                
+	"stime",                  /* 25 */
+	"ptrace",                
+	"alarm",                 
+	NULL,                    
+	"pause",                 
+	"utime",                  /* 30 */
+	"stty",                  
+	"gtty",                  
+	"access",                
+	"nice",                  
+	"ftime",                  /* 35 */
+	"sync",                  
+	"kill",                  
+	"stat",                  
+	"setpgrp3",              
+	"lstat",                  /* 40 */
+	"dup",                   
+	"pipe",                  
+	"times",                 
+	"profil",                
+	"ki_call",                /* 45 */
+	"setgid",                
+	"getgid",                
+	NULL,                    
+	NULL,                    
+	NULL,                     /* 50 */
+	"acct",                  
+	"set_userthreadid",      
+	NULL,                    
+	"ioctl",                 
+	"reboot",                 /* 55 */
+	"symlink",               
+	"utssys",                
+	"readlink",              
+	"execve",                
+	"umask",                  /* 60 */
+	"chroot",                
+	"fcntl",                 
+	"ulimit",                
+	NULL,                    
+	NULL,                     /* 65 */
+	"vfork",                 
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                     /* 70 */
+	"mmap",                  
+	NULL,                    
+	"munmap",                
+	"mprotect",              
+	"madvise",                /* 75 */
+	"vhangup",               
+	"swapoff",               
+	NULL,                    
+	"getgroups",             
+	"setgroups",              /* 80 */
+	"getpgrp2",              
+	"setpgid/setpgrp2",      
+	"setitimer",             
+	"wait3",                 
+	"swapon",                 /* 85 */
+	"getitimer",             
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	"dup2",                   /* 90 */
+	NULL,                    
+	"fstat",                 
+	"select",                
+	NULL,                    
+	"fsync",                  /* 95 */
+	"setpriority",           
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	"getpriority",            /* 100 */
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                     /* 105 */
+	NULL,                    
+	NULL,                    
+	"sigvector",             
+	"sigblock",              
+	"sigsetmask",             /* 110 */
+	"sigpause",              
+	"sigstack",              
+	NULL,                    
+	NULL,                    
+	NULL,                     /* 115 */
+	"gettimeofday",          
+	"getrusage",             
+	NULL,                    
+	NULL,                    
+	"readv",                  /* 120 */
+	"writev",                
+	"settimeofday",          
+	"fchown",                
+	"fchmod",                
+	NULL,                     /* 125 */
+	"setresuid",             
+	"setresgid",             
+	"rename",                
+	"truncate",              
+	"ftruncate",              /* 130 */
+	NULL,                    
+	"sysconf",               
+	NULL,                    
+	NULL,                    
+	NULL,                     /* 135 */
+	"mkdir",                 
+	"rmdir",                 
+	NULL,                    
+	"sigcleanup",            
+	"setcore",                /* 140 */
+	NULL,                    
+	"gethostid",             
+	"sethostid",             
+	"getrlimit",             
+	"setrlimit",              /* 145 */
+	NULL,                    
+	NULL,                    
+	"quotactl",              
+	"get_sysinfo",           
+	NULL,                     /* 150 */
+	"privgrp",               
+	"rtprio",                
+	"plock",                 
+	NULL,                    
+	"lockf",                  /* 155 */
+	"semget",                
+	NULL,                    
+	"semop",                 
+	"msgget",                
+	NULL,                     /* 160 */
+	"msgsnd",                
+	"msgrcv",                
+	"shmget",                
+	NULL,                    
+	"shmat",                  /* 165 */
+	"shmdt",                 
+	NULL,                    
+	"csp/nsp_init",          
+	"cluster",               
+	"mkrnod",                 /* 170 */
+	"test",                  
+	"unsp_open",             
+	NULL,                    
+	"getcontext",            
+	"osetcontext",            /* 175 */
+	"bigio",                 
+	"pipenode",              
+	"lsync",                 
+	"getmachineid",          
+	"cnodeid/mysite",         /* 180 */
+	"cnodes/sitels",         
+	"swapclients",           
+	"rmtprocess",            
+	"dskless_stats",         
+	"sigprocmask",            /* 185 */
+	"sigpending",            
+	"sigsuspend",            
+	"sigaction",             
+	NULL,                    
+	"nfssvc",                 /* 190 */
+	"getfh",                 
+	"getdomainname",         
+	"setdomainname",         
+	"async_daemon",          
+	"getdirentries",          /* 195 */
+	"statfs",                
+	"fstatfs",               
+	"vfsmount",              
+	NULL,                    
+	"waitpid",                /* 200 */
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                     /* 205 */
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                     /* 210 */
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                     /* 215 */
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                     /* 220 */
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	"sigsetreturn",          
+	"sigsetstatemask",        /* 225 */
+	"bfactl",                
+	"cs",                    
+	"cds",                   
+	NULL,                    
+	"pathconf",               /* 230 */
+	"fpathconf",             
+	NULL,                    
+	NULL,                    
+	"nfs_fcntl",             
+	"ogetacl",                /* 235 */
+	"ofgetacl",              
+	"osetacl",               
+	"ofsetacl",              
+	"pstat",                 
+	"getaudid",               /* 240 */
+	"setaudid",              
+	"getaudproc",            
+	"setaudproc",            
+	"getevent",              
+	"setevent",               /* 245 */
+	"audwrite",              
+	"audswitch",             
+	"audctl",                
+	"ogetaccess",            
+	"fsctl",                  /* 250 */
+	"ulconnect",             
+	"ulcontrol",             
+	"ulcreate",              
+	"uldest",                
+	"ulrecv",                 /* 255 */
+	"ulrecvcn",              
+	"ulsend",                
+	"ulshutdown",            
+	"swapfs",                
+	"fss",                    /* 260 */
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                     /* 265 */
+	NULL,                    
+	"tsync",                 
+	"getnumfds",             
+	"poll",                  
+	"getmsg",                 /* 270 */
+	"putmsg",                
+	"fchdir",                
+	"getmount_cnt",          
+	"getmount_entry",        
+	"accept",                 /* 275 */
+	"bind",                  
+	"connect",               
+	"getpeername",           
+	"getsockname",           
+	"getsockopt",             /* 280 */
+	"listen",                
+	"recv",                  
+	"recvfrom",              
+	"recvmsg",               
+	"send",                   /* 285 */
+	"sendmsg",               
+	"sendto",                
+	"setsockopt",            
+	"shutdown",              
+	"socket",                 /* 290 */
+	"socketpair",            
+	"proc_open",             
+	"proc_close",            
+	"proc_send",             
+	"proc_recv",              /* 295 */
+	"proc_sendrecv",         
+	"proc_syscall",          
+	"ipccreate",             
+	"ipcname",               
+	"ipcnamerase",            /* 300 */
+	"ipclookup",             
+	"ipcselect",             
+	"ipcconnect",            
+	"ipcrecvcn",             
+	"ipcsend",                /* 305 */
+	"ipcrecv",               
+	"ipcgetnodename",        
+	"ipcsetnodename",        
+	"ipccontrol",            
+	"ipcshutdown",            /* 310 */
+	"ipcdest",               
+	"semctl",                
+	"msgctl",                
+	"shmctl",                
+	"mpctl",                  /* 315 */
+	"exportfs",              
+	"getpmsg",               
+	"putpmsg",               
+	"strioctl",              
+	"msync",                  /* 320 */
+	"msleep",                
+	"mwakeup",               
+	"msem_init",             
+	"msem_remove",           
+	"adjtime",                /* 325 */
+	"kload",                 
+	"fattach",               
+	"fdetach",               
+	"serialize",             
+	"statvfs",                /* 330 */
+	"fstatvfs",              
+	"lchown",                
+	"getsid",                
+	"sysfs",                 
+	NULL,                     /* 335 */
+	NULL,                    
+	"sched_setparam",        
+	"sched_getparam",        
+	"sched_setscheduler",    
+	"sched_getscheduler",     /* 340 */
+	"sched_yield",           
+	"sched_get_priority_max",
+	"sched_get_priority_min",
+	"sched_rr_get_interval", 
+	"clock_settime",          /* 345 */
+	"clock_gettime",         
+	"clock_getres",          
+	"timer_create",          
+	"timer_delete",          
+	"timer_settime",          /* 350 */
+	"timer_gettime",         
+	"timer_getoverrun",      
+	"nanosleep",             
+	"toolbox",               
+	NULL,                     /* 355 */
+	"getdents",              
+	"getcontext",            
+	"sysinfo",               
+	"fcntl64",               
+	"ftruncate64",            /* 360 */
+	"fstat64",               
+	"getdirentries64",       
+	"getrlimit64",           
+	"lockf64",               
+	"lseek64",                /* 365 */
+	"lstat64",               
+	"mmap64",                
+	"setrlimit64",           
+	"stat64",                
+	"truncate64",             /* 370 */
+	"ulimit64",              
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                     /* 375 */
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	NULL,                    
+	"setcontext",             /* 380 */
+	"sigaltstack",           
+	"waitid",                
+	"setpgrp",               
+	"recvmsg2",              
+	"sendmsg2",               /* 385 */
+	"socket2",               
+	"socketpair2",           
+	"setregid",              
+	"lwp_create",            
+	"lwp_terminate",          /* 390 */
+	"lwp_wait",              
+	"lwp_suspend",           
+	"lwp_resume",            
+	"lwp_self",              
+	"lwp_abort_syscall",      /* 395 */
+	"lwp_info",              
+	"lwp_kill",              
+	"ksleep",                
+	"kwakeup",               
+	"ksleep_abort",           /* 400 */
+	"lwp_proc_info",         
+	"lwp_exit",              
+	"lwp_continue",          
+	"getacl",                
+	"fgetacl",                /* 405 */
+	"setacl",                
+	"fsetacl",               
+	"getaccess",             
+	"lwp_mutex_init",        
+	"lwp_mutex_lock_sys",     /* 410 */
+	"lwp_mutex_unlock",      
+	"lwp_cond_init",         
+	"lwp_cond_signal",       
+	"lwp_cond_broadcast",    
+	"lwp_cond_wait_sys",      /* 415 */
+	"lwp_getscheduler",      
+	"lwp_setscheduler",      
+	"lwp_getprivate",        
+	"lwp_setprivate",        
+	"lwp_detach",             /* 420 */
+	"mlock",                 
+	"munlock",               
+	"mlockall",              
+	"munlockall",            
+	"shm_open",               /* 425 */
+	"shm_unlink",            
+	"sigqueue",              
+	"sigwaitinfo",           
+	"sigtimedwait",          
+	"sigwait",                /* 430 */
+	"aio_read",              
+	"aio_write",             
+	"lio_listio",            
+	"aio_error",             
+	"aio_return",             /* 435 */
+	"aio_cancel",            
+	"aio_suspend",           
+	"aio_fsync",             
+	"mq_open",               
+	"mq_unlink",              /* 440 */
+	"mq_send",               
+	"mq_receive",            
+	"mq_notify",             
+	"mq_setattr",            
+	"mq_getattr",             /* 445 */
+	"ksem_open",             
+	"ksem_unlink",           
+	"ksem_close",            
+	"ksem_destroy",          
+	"lw_sem_incr",            /* 450 */
+	"lw_sem_decr",           
+	"lw_sem_read",           
+	"mq_close",              
+};
+static const int syscall_names_max = 453;
+
 int
 hpux_unimplemented(unsigned long arg1,unsigned long arg2,unsigned long arg3,
 		   unsigned long arg4,unsigned long arg5,unsigned long arg6,
@@ -342,10 +931,19 @@
 	/* NOTE: sc_num trashes arg8 for the few syscalls that actually
 	 * have a valid 8th argument.
 	 */
+	const char *name = NULL;
+	if ( sc_num <= syscall_names_max && sc_num >= 0 ) {
+		name = syscall_names[sc_num];
+	}
 
-	printk(KERN_DEBUG \
-		"Unimplemented HP-UX syscall emulation. Syscall #%d\n",
+	if ( name ) {
+		printk(KERN_DEBUG "Unimplemented HP-UX syscall emulation. Syscall #%lu (%s)\n",
+		sc_num, name);
+	} else {
+		printk(KERN_DEBUG "Unimplemented unknown HP-UX syscall emulation. Syscall #%lu\n",
 		sc_num);
+	}
+	
 	printk(KERN_DEBUG "  Args: %lx %lx %lx %lx %lx %lx %lx\n",
 		arg1, arg2, arg3, arg4, arg5, arg6, arg7);
 

--fdj2RfSjLxBAspz7--




From - Thu Nov 08 21:19:40 2018
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From: Jurij Smakov <jurij@lokmail.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:12478

Hi!

This is an effort to clean up the bug database. Some of the bugs were
filed long ago, so there is a need to update the status on them. I was
able to check out some, but there are still quite a lot of them. It would
be very nice, if people (especially, authors) would quickly look through 
the list and update the status. Also feel free to pick some bug from 
the "Bugs, which can be checked" section and test, whether it is still
present, with the latest kernel/binutils/gcc/glibc.

Also, how does one change a status of the bug? Do You need some special
powers to do so?

===========================================================================
Bugs, which probably can be closed (subject to author's approval)

Author: Came from an old todo list

57     SMP support - Interrupt Distribution (even CPU loading) w/CONFIG_SMP.
       Seems like it is working (or at least, supposed to), according to
       mailing lists. 

Author: Grant Grundler

75     lba_device_present() not implemented.
       Inspection of linux/arch/parisc/kernel/lba_pci.c shows, that
       lba_device_present() is implemented and used.
110    1 sec per 24 hours drift between RTC and kernel.
       Well, I've seen machines doing worse things than that. I think
       such drift is acceptable. If needed, one can run
       ntpdate/hwclock periodically, as suggested in original bug report.

Author: Ryan Bradetich

86     palo sets 'console=tty0', but output still goes to serial console
       instead of STI. This was reported for 712/80. I have such a machine
       and haven't seen any such problems with recent kernels.

Author: Matthew Wilcox

121    User fault on kernel space handler infinite loop. Process, causing
       the fault does not get killed.
       Haven't seen any such behaviour with latest kernels. Anyone?
135    Kernel panic doing two simultaneous compiles on 712. 
       Kernel build with "make -j 2" completed without problems. Is it
       enough?

Author: Thomas Marteau

137    Messages in the mailing list archives do not display dates (is this
       the correct interpretation?). Seems like everything fine with dates
       now.

Author: dannf@dannf.org

139    python and python2 says: "math.sqrt(2.0) == 0.0".
       Tested it with python-base 1.5.2-16, libc6 2.2.3-9. Everything
       works correctly now. 
===========================================================================
Bugs, which are likely to be still open

Author: Came from an old todo list.

63     Kernel debugger (KWDB) not implemented.
       There are a lot of #ifdef CONFIG_KWDB in the sources,
       but I remeber hearing somewhere, that it is not quite
       functional yet. I might be wrong though.

Author: Matthew Wilcox

35     A lot of things to implement in Documentation/parisc/unwritten.
       As far as I can tell, most of the stuff is still unimplemented.
82     710 SCSI and LAN are not working.
       710 might be working with latest PCXS fixes, but no one has reported 
       a success yet. Someone with a 710 might check this out.

Author: Randolph Chung

41     Unimplemented asm checksum routines. Still not implemented. Some
       of the routines (all?) are mentioned in bug #35. Maybe, they
       should be merged?

Author: R. Scholz

146    STI-Console not working with Coral Graphics Card on 715/100

Author: Paul Bame

124    siginfo_t 32-bit != 64-bit requiring lots of work
       This is likely to be still open.

Author: Matt Taggart

138    palo can't figure out whether kernel is narrow or wide. Temporary
       workaround is append 32 or 64 to the end of the kernel file name.
       Is it still open?       

===========================================================================
Bugs, which can be checked more or less easily
(and everyone is encouraged to do so)

Author: Came from an old todo list.

66     Not setting CONFIG_GSC_PS2 in the config causes kernel build
       to fail with undefined references to kbd_read_status,
       kbd_write_command and kbd_write_output.

Author: Paul Bame

88     libgcc.a __udivdi3 uses floating-pt instructions, clash with 
       -mdisable-fpregs
102    The second (actually the first) SCSI controller on C3000 doesn't work.
       Someone with such a machine should probably check it.
142    drivers/net/dmfe.c won't compile as module -- possible gcc bug.
143    aic7xxx.c won't compile with 64-bit kernel.

Author: Richard Hirst

98     64-bit cross-linker does not include millicode functions 
       (shown as undefined by nm).

Author: Matther Wilcox

114    __builtin_cos undefined with g77. Should be in libgcc.a?
127    dl-addr fails. As I understand, it's about failed glibc test.
128    posix/glob-test fails. Another glibc test failure?
129    linuxthreads/ex15 fails. And another one?
       Probably it's a good idea to keep a list of failed tests from the
       latest glibc CVS builds.

Author: Grant Grundler 

132    PPP causes trap 15. Workaround: add "nobsdcomp" and "nodeflate" to
       /etc/ppp/peers/uunet. Now should probably work without any
       workarounds.

Author: Peter Mottram

134    Installation of 0.9 release crashes on C110 with serial console.
       0.9.2 was a major improvement, compared to 0.9. Anyone with such
       a machine care to check this?

Author: Kevin Carson

141    Problem with A2840B keyboard during installation of 0.9.1 release
       on a C160 with STI console. Keyboard does not produce any input,
       once the installation program has started. Other keyboard worked
       fine. Anybody with this combination of hardware willing to check?

===========================================================================
All other bugs (unknown status, irreproducible, uncheckable, unknown
how to check, etc.). Some feedback from authors would be great.

Author: Came from the old todo list

46     Create an IO tree to support multiple I/O MMUs.
62     64-bit kernel - Do the right thing with macro elf_check_arch().
       Anybody knows, what the "right thing" is? :-). Was it done
       already? The referenced posts are not very enlightening.

Author: Matthew Wilcox

37     STI console does not display early enough.
92     Machine sometimes won't boot after interacting with IPL and editing 
       the load options.
119    long double is 64 bit. Some glibc tests fail since they assume
       128 bit for long double on hppa.

Author: Paul Bame

123    ntpdate -b fails to set sub-second clock. Apparently, ntpdate problem.

Author: Grant Grundler

130    iosapic allocs extra EIR bit for shared IRQ line. Harmless, according
       to the original bug report.

Author: Richard Hirst

136    The installer leaves the kernel in /boot/vmlinux-2.4.0, but a
       kernel upgrade, via 
       dpkg -i kernel-image-2.4.0-pa30-32sti_2.4.0_hppa.deb
       will leave the new kernel in /boot/vmlinux-2.4.0-pa30.
       Either /etc/palo.conf needs to get updated to reference the
       new kernel, or we need to use symlinks in /boot, and the symlink
       needs updating.
145    store iplboot in /usr/lib/palo/iplboot on non-hppa systems?

Author: Randolph Chung

140    IDE support. It is not a bug :-), just Randolph volunteering
       to do something about it.

===========================================================================

Best regards,

Jurij.






From - Thu Nov 08 21:19:40 2018
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I'm thinking about committing the following patch to our cvs:

Index: drivers/block/rd.c
===================================================================
RCS file: /home/cvs/parisc/linux/drivers/block/rd.c,v
retrieving revision 1.16
diff -u -p -r1.16 rd.c
--- drivers/block/rd.c	2001/08/01 15:25:06	1.16
+++ drivers/block/rd.c	2001/10/05 06:00:50
@@ -227,14 +227,9 @@ static int rd_make_request(request_queue
 	 */
 	bdata = bh_kmap(sbh);
 	if (rw == READ) {
-		/* XXX FIXME This is probably not the right fix, and the
-		 * upstream kernel will probably fix this a different way,
-		 * but for now I'd rather have something which works in
-		 * CVS rather than a semi-secret patch. -PB
-		 */
 		if (sbh != rbh) {
 			memcpy(bdata, rbh->b_data, rbh->b_size);
-			flush_kernel_dcache_range(bdata,rbh->b_size);
+			flush_dcache_page(sbh->b_page);
 		}
 	} else
 		if (sbh != rbh)

However, rd.c changed dramatically in 2.4.10, and I think the following
patch will be equivalent.  I posted a short analysis here
http://marc.theaimsgroup.com/?l=linux-kernel&m=100160260325543&w=2
but neither Linus nor Alan seem to have applied this patch yet.

--- linux-2410/drivers/block/rd.c	Thu Sep 27 08:32:39 2001
+++ linux-2410-rd/drivers/block/rd.c	Thu Sep 27 08:35:34 2001
@@ -276,7 +276,6 @@ static int rd_blkdev_pagecache_IO(int rw
 			if (!Page_Uptodate(page)) {
 				memset(kmap(page), 0, PAGE_CACHE_SIZE);
 				kunmap(page);
-				flush_dcache_page(page);
 				SetPageUptodate(page);
 			}
 
@@ -301,8 +300,11 @@ static int rd_blkdev_pagecache_IO(int rw
 		kunmap(page);
 		bh_kunmap(sbh);
 
-		if (rw != READ)
+		if (rw == READ) {
+			flush_dcache_page(page);
+		} else {
 			SetPageDirty(page);
+		}
 		if (unlock)
 			UnlockPage(page);
 		__free_page(page);

anyone see any problems with my analysis / fixes?

-- 
Revolutions do not require corporate support.




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From: "Neulinger, Nathan" <nneul@umr.edu>
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Subject: RE: [parisc-linux] Table version of syscall names patch and some 
	simple wrappers
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Well, duh... Turns out it was working fine, but I was testing the apps from
a client station that couldn't resolve the host name I put in the license
file.

So, parisc-linux will fit the bill at least for this situation quite nicely.


-- Nathan

> -----Original Message-----
> From: Nathan Neulinger [mailto:nneul@umr.edu]
> Sent: Friday, October 05, 2001 9:29 AM
> To: parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] Table version of syscall names patch and some
> simple wrappers
> 
> 
> This switches the callnames stuff into a table instead of a 
> large switch. It
> also includes a couple of simple wrappers that helped flexlm 
> get a bit further
> in it's execution. (Looks like it's working from 
> lmdiag/lmstat, but doesn't
> actually work from the applications yet unfortunately.)
> 
> -- Nathan
> 
> ------------------------------------------------------------
> Nathan Neulinger                       EMail:  nneul@umr.edu
> University of Missouri - Rolla         Phone: (573) 341-4841
> Computing Services                       Fax: (573) 341-4216
> 




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Subject: RE: [parisc-linux] HP-UX binary compatibility
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Hmm... Doesn't appear to be in there. At the moment, I actually could care
less about the real host id, but if the proc entry was overwritable, that
would solve my needs perfectly. At the moment, in my local kernel source, I
just wired the appropriate return values in the system call wrapper. 

-- Nathan

> -----Original Message-----
> From: Helge Deller [mailto:helge.deller@sap.com]
> Sent: Friday, October 05, 2001 3:18 AM
> To: Neulinger, Nathan; 'John Marvin';
> parisc-linux@lists.parisc-linux.org
> Cc: Uetrecht, Daniel J.
> Subject: Re: [parisc-linux] HP-UX binary compatibility
> 
> 
> Hi Nathan,
> 
> On Thursday 04 October 2001 17:07, Neulinger, Nathan wrote:
> >
> > troot-halley(11)> uname -a
> > HP-UX halley B.10.20 A 9000/735 2002000004 two-user license
> > troot-halley(12)> uname -i
> > 2002000004
> >
> > It's that 2002000004 that I need. 
> 
> I currently don't have access to a parisc-linux machine, but out of 
> my head I think you may get that number from the /proc/cpuinfo file 
> (maybe it is displayed there in hex) and may use it from the variable
> behind this output for your syscall wrapper.
> 
> Greetings,
> Helge
> 




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> Also, how does one change a status of the bug? Do You need some special
> powers to do so?

http://bugs.parisc-linux.org/server-control.html has the details.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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Thomas Marteau wrote:
> I have two things to say but I need an Hardware HP guy to answer those:
> 	-1) Page 69 of LASI_ers.ps, note 2 is mentionned but I can see only the
> note 1. Why?

Hacked reformatting?
Here are two notes from "Table 4: PS2 Interface registers":
Note 1: Each PS2 device returns a unique hardwired ID code in bits 3:0 of ID.
Note 2: Resetting the block disables it (see Table 6).

> 	-2) On my B132, in boot_admin, when you press Escape Key too much (more
> than 2 times), you can't type anything!
> you need to press enter and then you can type. This is reproductible! Is
> it a normal behaviour?

Could this be a firmware bug?

grant




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The pdc_add_valid function really annoys me.  Or maybe it's just how
it's used:

        if (!pdc_add_valid( (void *)(port+4))) {

Which says to me `if this address is not valid' -- the opposite of what it
does.  It could be rewritten as:

	if (pdc_add_valid((void *)(port+4)) == PDC_OK) {

but this takes more effort.  In my tree, I've added valid_io_addr which
does what it says on the tin:

	if (valid_io_addr(port+4)) {

For the moment, I've put it in <asm/io.h>, since it is for I/O addresses.

+int valid_io_addr(unsigned long addr)
+{
+       return (pdc_add_valid(addr) == PDC_OK);
+}

But maybe we should replace pdc_add_valid with valid_io_addr?  Or a
different function?  Suggestions appreciated.

-- 
Revolutions do not require corporate support.




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Are there any patches for config.guess/config.sub to add reasonable support
for parisc-linux? Right now, the ones 

I was able to get reasonable config.sub behavior by adding a basic_machine
check for parisc-unknown, but has anyone submitted anything better to the
maintainers?

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] config.guess/config.sub support?
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"Neulinger, Nathan" writes...

> Are there any patches for config.guess/config.sub to add reasonable support
> for parisc-linux? Right now, the ones I was able to get reasonable
> config.sub behavior by adding a basic_machine check for parisc-unknown,
> but has anyone submitted anything better to the maintainers?

The upstream location for these files is,

http://subversions.gnu.org/cgi-bin/cvsweb/config/

hppa-linux support has been there for quite a while but some maintainers are
slow to update. Debian encourages package maintainers to use the versions
provided by the autotools-dev package (which live in /usr/share/misc/config.*)

HTH,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation




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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] sti broken in pa32 on B180
Date: Fri, 05 Oct 2001 19:41:37 +0200 (CEST)
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To: Thomas Marteau <marteaut@esiee.fr>
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Hi Thomas,

Sorry if I could not help you for such a so detailed question.

But I just recompile pa39 (with patch inventory.c) and it seems to solved on tmy 
b180. (also on 712)

Kind regards,
        joel


Quoting Thomas Marteau <marteaut@esiee.fr>:

> Hi Joel,
> 
> First of all, the STI console and fb is dead on my B132. And now, let's
> go to the kbd.
> 
> 	If you tried the disconnect/reconnect trial of strength on your PC,
> you should see with showkey --scancode a scancode 0xAA that tells the
> controller that a kbd has been reconnected.
> On my B132, I don't see that all the time :( and when this occurs, it
> is
> when the kbd do an timeout/parity error.
> And this is a big trouble b/c it seems that we should look at the state
> of the controller all the time and it is not a solution.
> It seems to be integrated in the chip on PCs and on HP boxes, it is not
> designed for that case, it seems.
> 
> I have two things to say but I need an Hardware HP guy to answer those:
> 	-1) Page 69 of LASI_ers.ps, note 2 is mentionned but I can see only
> the
> note 1. Why?
> 	-2) On my B132, in boot_admin, when you press Escape Key too much
> (more
> than 2 times), you can't type anything!
> you need to press enter and then you can type. This is reproductible!
> Is
> it a normal behaviour?
> 
> > Nervertheless on this b180 the (ps/2) kbd problem is reproductible:
> > disconnect, reconnect the kdb then touch any key then:
> > "keyboard: unrecognised scancode (7f) - Ignored"
> > and I do not find a way to reinit the this kdb.
> > (System still running, just loss the access to the console)
> > 
> > Thanks in advance for addtional help,
> >         Joel
> 
> Thanks for any answer or advice, Thomas.
> ESIEE Team
> 
> 


-------------------------------------------------
This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)




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I just submitted patches to get the OpenAFS user space and kernel module to
build cleanly on parisc-linux. Unfortunately, the kernel module oops when
loaded, but that should hopefully not be too tragic to resolve.

Hopefully those patches should get committed soon, at which point I could
use any assistance tracking down the reason for the panic. 

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216




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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: Re: [parisc-linux] woody install on 720/50
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Hello all,

An update on my 720/50. I've managed to get the install as far as
downloading all the packages. But when it starts extracting the first
package, base-files, it hangs. This is on 2.4.9-pa39.

Aside, when installing it seems one should create the palo
partition, create and initialise the swap partition, create and
initialise the ext2 partition. Now optionally set up the hostname and
networking, and then move directly to the installation of the base
system. This got me as far as getting all the packages downloaded, as
mentioned above.

I've booted a fresh nfsroot again, and as John Marvin mentioned a few
days ago, ls still hangs randomly, although it doesn't seem to depend on
the directory. On a previous boot I managed a ls -lR /, but now a simple
ls / hangs the system.

Any suggestions on how I proceed from here? What is still missing from
the kernel and what can I do to help fix it? :-)

Regards,

Albert

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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] woody install on 720/50
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On Fri, Oct 05, 2001 at 10:20:28PM +0200, Albert Strasheim wrote:
> Any suggestions on how I proceed from here? What is still missing from
> the kernel and what can I do to help fix it? :-)

nothing's missing from the kernel -- the compiler needs to get fixed.

-- 
Revolutions do not require corporate support.




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From: Albert Strasheim <fullung@ilink.nis.za>
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Hello,

On Fri, 05 Oct 2001, Matthew Wilcox wrote:

> On Fri, Oct 05, 2001 at 10:20:28PM +0200, Albert Strasheim wrote:
> > Any suggestions on how I proceed from here? What is still missing from
> > the kernel and what can I do to help fix it? :-)
> 
> nothing's missing from the kernel -- the compiler needs to get fixed.

Okay, I seem to recall now that you mentioned this. :-) What needs to
get done to "prove" that is a compiler bug. I'm willing to take it up
with the GCC people once I know what to tell them. :-)

Regards,

Albert




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Re:

>         if (!pdc_add_valid( (void *)(port+4))) {
> 
> Which says to me `if this address is not valid' -- the opposite of what it
> does.  It could be rewritten as:

Very good point.

Code should be readable first, and efficient second.

Routines that work the opposite of their name are just problems
waiting to happen.
 
> 	if (valid_io_addr (port+4)) {
vs:
> +       return (pdc_add_valid (addr) == PDC_OK);

The latter has the advantage that the reader knows it's a PDC
routine being called, not some kernel routine that could be done
who knows what.

Thus, I'd go for the latter, or change your "valid_io_addr" to
"pdc_valid_io_addr", to (a) be readable; and (b) convey the PDC info.

Stan (still can't believe HP-UX uses non-compatible "sprintf" in the kernel) Sieler




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On Fri, Oct 05, 2001 at 02:58:13PM -0700, Stan Sieler wrote:
> > 	if (valid_io_addr (port+4)) {
> vs:
> > +       return (pdc_add_valid (addr) == PDC_OK);
> 
> The latter has the advantage that the reader knows it's a PDC
> routine being called, not some kernel routine that could be done
> who knows what.
> 
> Thus, I'd go for the latter, or change your "valid_io_addr" to
> "pdc_valid_io_addr", to (a) be readable; and (b) convey the PDC info.

I should have explained this in my original mail... the reason I don't
want to make this a pdc_* call is that I believe we have an expectation
that pdc_* calls return PDC_ error codes.  Perhaps this isn't an
expectation that people have, in which case I don't have an objection
to simply renaming pdc_add_valid to pdc_addr_valid, and changing the
sense of the return value.

-- 
Revolutions do not require corporate support.




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On Mon, Sep 17, 2001 at 04:55:01PM +0200, Francois Deppierraz wrote:

> My HP 712/60 with a 2.4.9-pa20 kernel crash with the following error
> message when I portscan it using nmap -O (OS detection).
> 
> kswapd[4]: Unaligned data reference 28

I just upgraded today to 2.4.9-pa38 and it looks like this bug is
fixed.

Thanks you guys, great work !
-- 
Francois Deppierraz <francois.deppierraz@nimag.net>
Nimag Networks Srl - www.nimag.net
PGP Key ID: 9D283BC9




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Matthew Wilcox wrote:
> 
> The pdc_add_valid function really annoys me.

So you want a sane wrapper around it.

> For the moment, I've put it in <asm/io.h>, since it is for I/O addresses.
> 
> +int valid_io_addr(unsigned long addr)
> +{
> +       return (pdc_add_valid(addr) == PDC_OK);
> +}

I prefer asm/io.h not depend on pdc.h.
Why not just add whatever wrapper to pdc.h?

> But maybe we should replace pdc_add_valid with valid_io_addr?
> Or a different function?  Suggestions appreciated.

sorry - no better ideas.

grant




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I've tracked down one problem a little bit.  The L2k hangs with an SMP
kernel (even with only one CPU enabled) after:

Linux NET4.0 for Linux 2.4                                                      
Based upon Swansea University Computer Society NET3.039                         

What it's doing here is trying to run the keyboard_tasklet, which seems
to be disabled, so it reschedules it... ad infinitum.  More investigation
required, but I'm on the track, I think.

-- 
Revolutions do not require corporate support.




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Matthew Wilcox wrote:
> What it's doing here is trying to run the keyboard_tasklet, which seems
> to be disabled, so it reschedules it... ad infinitum.  More investigation
> required, but I'm on the track, I think.

I was browsing commits made between -pa19 (I think worked) and -pa30 
(know it didn't work...could have been -pa32).  That got me looking
at -pa21 commit, changing the order of device detect and other init
calls.  Comments in include/asm-parisc/keyboard.h suggest the
initialization sequence is holy for kbd-ops usage. Still poking
around there.

BTW, rbrad doesn't think that commit got tested with CONFIG_SMP enabled
and noted that smp_init() is now *before* device detection.
Another lead to followup.

grant 




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Hi Nathan,

I just verified and the /proc/cpuinfo entry was removed in the meantime.
But with the following code-fragment you will get the right number:

#include <asm/processor.h>
printk("ID: %ld\n", boot_cpu_data.pdc.model.sw_id);

This value is initialized during boot-up in setup.c and comes from the 
PDC_MODEL [pdc_model_info()] syscall.

Greetings,
Helge

On Friday 05 October 2001 17:14, Neulinger, Nathan wrote:
> Hmm... Doesn't appear to be in there. At the moment, I actually could care
> less about the real host id, but if the proc entry was overwritable, that
> would solve my needs perfectly. At the moment, in my local kernel source, I
> just wired the appropriate return values in the system call wrapper.
>
> -- Nathan
>
> > -----Original Message-----
> > From: Helge Deller [mailto:helge.deller@sap.com]
> > Sent: Friday, October 05, 2001 3:18 AM
> > To: Neulinger, Nathan; 'John Marvin';
> > parisc-linux@lists.parisc-linux.org
> > Cc: Uetrecht, Daniel J.
> > Subject: Re: [parisc-linux] HP-UX binary compatibility
> >
> >
> > Hi Nathan,
> >
> > On Thursday 04 October 2001 17:07, Neulinger, Nathan wrote:
> > > troot-halley(11)> uname -a
> > > HP-UX halley B.10.20 A 9000/735 2002000004 two-user license
> > > troot-halley(12)> uname -i
> > > 2002000004
> > >
> > > It's that 2002000004 that I need.
> >
> > I currently don't have access to a parisc-linux machine, but out of
> > my head I think you may get that number from the /proc/cpuinfo file
> > (maybe it is displayed there in hex) and may use it from the variable
> > behind this output for your syscall wrapper.
> >
> > Greetings,
> > Helge





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Hello,

On Wed, 03 Oct 2001, John Marvin wrote:

<snip>

> However, ls still hangs randomly (actually it is not random, it depends on
> which directory the ls is done in).  It gets stuck in a ldcw loop due to
> the lock word not being 16 byte aligned.  The problem is that we fixed the
> alignment problems for static and dynamic allocations, but the align
> attribute is ignored for automatic (stack) allocations. Note that
> although ldcw requires 16 byte alignment for correct function, it does
> not cause an unaligned fault if the address is not aligned, it just
> doesn't work correctly!
>=20
> Here are some suggested fixes:
>=20
>     1) Fix the compiler to honor the aligned attribute for stack
>     allocations. I'm not sure how difficult this would be. I'm
>     not a compiler person, so someone else would have to do this.
>     I would guess that this problem is in the machine independent
>     part of the compiler. I'm not sure whether or not it would
>     be considered a bug. It might be worth writing a test for
>     the 386 version of gcc, and if it fails, report the "bug" and
>     see what happens ...
>=20
>     2) Change the lock structure to have 4 contiguous lock words, each
>     initialized to 1.  Then the lock code can round the address up to the
>     nearest 16 byte aligned address and use that for the semaphore.  If we
>     choose this solution we can just get rid of the aligned attribute,
>     since it would no longer serve any purpose.

As anyone decided on what do here? What would the test that John
mentions entail? How difficult is the second solution to implement?

Regards,

Albert

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Hi all,
In summary, it looks like unwritten file can be deleted.
Notes from reviewing Documentation/parisc/unwritten are appended.

I'll delete things marked delete unless someone tells me otherwise
by early next week.

Please give feedback on items marked "review?".
It means I didn't know what to do but status quo didn't seem right either.

thanks,
grant


sys_idle	./include/asm-parisc/unistd.h
		obsolete - delete usage.

reboot_setup()	arch/parisc/kernel/process.c
		not used. delete function.

machine_halt		BUG. NOP.  Should update LEDs/ChassisCode.
machine_power_on	obsolete - delete it
		arch/parisc/kernel/process.c

exit_thread		NOP is ok.
flush_thread		review?
		arch/parisc/kernel/process.c.
		Only needs to handle fpu stuff or perf monitors.
		(several arches implement a "lazy fpu state"...interesting)

strlen_user	include/asm-parisc/uaccess.h
		#define strlen_user(str) lstrnlen_user(str, 0x7fffffffL)
		review?

do_check_pgt_cache	arch/parisc/mm/init.c
		NOP. this seems wrong.
		all the other arches have (about) the same thing here.
		sparc64 has some CONFIG_SMP in it.

set_pte_phys	arch/parisc/mm/init.c
		orphaned. delete it.

check_bugs	include/asm-parisc/bugs.h
		NOP. Check for CPU bugs or misconfigured kernel.
		review?

csum_partial_copy
csum_partial_copy_from_user
		arch/parisc/lib/checksum.c
		We want optimized asm for both of those.
		Willy reminded me to pester someone in HP about this.

sigaddset
sigdelset	include/linux/signal.h
		Only i386 and m68k define __HAVE_ARCH_SIG_BITOPS.
		parisc ends up using "generic" code like most other arches.
		Is this an issue?

get_cycles	include/asm-parisc/timex.h
		Defined as "mfctl(16)". Is this ok?
		Only used in drivers/drm/ and kernel/sched.c.




From - Thu Nov 08 21:19:41 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] review of Documentation/parisc/unwritten
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Hi Grant,

> machine_halt		BUG. NOP.  Should update LEDs/ChassisCode.
> machine_power_on	obsolete - delete it
> 		arch/parisc/kernel/process.c

The LED/ChassisCodes are already updated by the led_halt() function, called
by the reboot notifier chain. machine_halt() is called by sys_reboot(), so we need
to let it be a NOP, or just #define it as NOP.
machine_power_on could be deleted AFAIT.

> check_bugs	include/asm-parisc/bugs.h
> 		NOP. Check for CPU bugs or misconfigured kernel.
> 		review?

Does the PA CPU has bugs ? :-)

Helge




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On Wednesday 03 October 2001 05:04 am, John Marvin wrote:
>
> I'll try to explain it here. Perhaps I can explain it clearer than how
> the parisc documentation explains it (then again, perhaps not :-)).
>
John,

Thanks a lot.

Soon, maybe, somehow - I will have my 9000/720-50 setup again
and running - then I will be able to learn these things on my own.

Mike




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M,

I see what you mean now.
I have glibc 2.2.4-2 compiling all the way to the point where it
starts churning thorugh:

make  -C sunrpc others
make[2]: Entering directory `/home/carlos/palinux/glibc-2.2.4/glibc-2.2.4/sunrpc'
/home/carlos/palinux/glibc-2.2.4/hppa-linux/obj/elf/ld.so.1 --library-path /home/carlos/palinux/glibc-2.2.4/hppa-linux/obj:/home/carlos/palinux/glibc-2.2.4/hppa-linux/obj/math:/home/carlos/palinux/glibc-2.2.4/hppa-linux/obj/elf:/home/carlos/palinux/glibc-2.2.4/hppa-linux/obj/dlfcn:/home/carlos/palinux/glibc-2.2.4/hppa-linux/obj/nss:/home/carlos/palinux/glibc-2.2.4/hppa-linux/obj/nis:/home/carlos/palinux/glibc-2.2.4/hppa-linux/obj/rt:/home/carlos/palinux/glibc-2.2.4/hppa-linux/obj/resolv:/home/carlos/palinux/glibc-2.2.4/hppa-linux/obj/crypt:/home/carlos/palinux/glibc-2.2.4/hppa-linux/obj/linuxthreads /home/carlos/palinux/glibc-2.2.4/hppa-linux/obj/sunrpc/rpcgen -Y `gcc -print-file-name=cpp | sed 's|/cpp$||'` -c rpcsvc/bootparam_prot.x -o /home/carlos/palinux/glibc-2.2.4/hppa-linux/obj/sunrp
 c/xbootparam_prot.T

At which point I've followed ld down with gdb to:

0x41003198 <_dl_start+1584>:	copy r1,r20
0x4100319c <_dl_start+1588>:	addil 0,r19,%r1
0x410031a0 <_dl_start+1592>:	copy r1,r21
0x410031ac <_dl_start+1604>:	ldw 2c(sr0,r21),r21
0x410031b0 <_dl_start+1608>:	copy r1,r23
0x410031b4 <_dl_start+1612>:	copy r20,r26
0x410031b8 <_dl_start+1616>:    ldw 30(sr0,r23),r23
0x410031bc <_dl_start+1620>:    b,l 0x41012b70 <__assert_fail>,rp
0x410031c0 <_dl_start+1624>:    copy r21,r25
0x410031c4 <_dl_start+1628>:    addil 0,r19,%r1

The assertion fails.
The address in r21/r25 is 0x15b78, which is clearly not a valid
address, and thus dl's printf barfs.

I will add that the address is not always 0x15b78, and it varies.
Which might mean that it's just random stuff being pulled off
the stack (or I haven't been that thorough in tracing the assembly).

#0  _dl_debug_vdprintf (fd=0, tag_p=0, fmt=0x17c94 <Address 0x17c94 out of bounds>,
    arg=0xbff008d8) at dl-misc.c:101
#1  0x4100ebc8 in _dl_dprintf (fd=2, fmt=0x17c94 <Address 0x17c94 out of bounds>)
    at dl-misc.c:279
#2  0x41012bd0 in __assert_fail (assertion=0x15b64 <Address 0x15b64 out of bounds>,
    file=0x0, line=62, function=0xbff008d8 "") at dl-minimal.c:190
#3  0x410031c4 in _dl_start (arg=0xbff004f4) at rtld.c:62
#4  0x41002ae8 in _dl_start_user () at rtld.c:143

Program received signal SIGSEGV, Segmentation fault.
_dl_debug_vdprintf (fd=0, tag_p=0, fmt=0x17c94 <Address 0x17c94 out of bounds>,
    arg=0xbff008d8) at dl-misc.c:101
101       while (*fmt != '\0')

I'm completely confused by the usage of the registers.
But that's compiler tuned assembly for you :)

It's not something that clearly jumps out at you, and after
tracing about the assembly, trying to follow what goes where,
It is not any clearer.

It's not a blatently obvious mistake :}

---

I've also noticed that the tests for glibc bail out with:

./tst-iconv1: error while loading shared libraries: ./tst-iconv1: symbol __deregister_frame_info, version GLIBC_2.2 not defined in file libc.so.6 with link time reference

Does __deregister_frame_info and __register_frame_info have to do with
the stack unwinding for DWARF2 vsyscalls?

Both of these functions have weak bindings, and I remember there being
some odd rules about bidning in dl_main.

---

c.




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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] [patch] /proc interface for LED/LCD
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hi all,

the attached patch creates a /proc interface for boxes with LED/LCD
support. For example:

legolas:/home/randolph# ls -l /proc/pdc/
total 0
-rw-r--r--    1 root     root            0 Oct  6 13:35 lcd
-rw-r--r--    1 root     root            0 Oct  6 13:35 led
legolas:/home/randolph# cat /proc/pdc/led 
Heartbeat: 1
Disk IO: 1
LAN Rx/Tx: 1
legolas:/home/randolph# cat /proc/pdc/lcd 
Linux 2.4.9-pa40
legolas:/home/randolph# echo -n "debian/rules" > /proc/pdc/lcd

("debian/rules" appears on the LCD on the chassis....)

legolas:/home/randolph# cat /proc/pdc/lcd 
debian/rules
legolas:/home/randolph# echo > /proc/pdc/lcd

(Chassis reverts to original Linux version display)

legolas:/home/randolph# cat /proc/pdc/lcd 
Linux 2.4.9-pa40
legolas:/home/randolph# echo "1 1 0" > /proc/pdc/led

(invalid strings will cause an error to go to your kernel log)

legolas:/home/randolph# cat /proc/pdc/led 
Heartbeat: 1
Disk IO: 1
LAN Rx/Tx: 0

I've only tested it on a c3000 (only machine i have with led/lcd
support). Would appreciate if folks can try it on other machines and let
me know if it works :)

This also requires a small fix to arch/parisc/kernel/firmware.c which i
checked into cvs this morning.

enjoy! :)
randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


Index: arch/parisc/kernel/led.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/led.c,v
retrieving revision 1.22
diff -u -r1.22 led.c
--- led.c	2001/08/14 16:54:52	1.22
+++ led.c	2001/10/06 20:31:47
@@ -4,6 +4,7 @@
  *      (c) Copyright 2000 Red Hat Software
  *      (c) Copyright 2000 Helge Deller <hdeller@redhat.com>
  *      (c) Copyright 2001 Helge Deller <deller@gmx.de>
+ *      (c) Copyright 2001 Randolph Chung <tausq@debian.org>
  *
  *      This program is free software; you can redistribute it and/or modify
  *      it under the terms of the GNU General Public License as published by
@@ -11,9 +12,8 @@
  *      (at your option) any later version.
  *
  * TODO:
- *	- LCD functionality is mostly untested (lack of hardware :-() 
- *	- add procfs entry to (maybe partially) enable & disable LEDs
  *	- speed-up calculations with inlined assembler
+ *	- interface to write to second row of LCD from /proc
  */
 
 #include <linux/config.h>
@@ -28,6 +28,8 @@
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
 #include <linux/reboot.h>
+#include <linux/proc_fs.h>
+#include <linux/ctype.h>
 #include <asm/io.h>
 #include <asm/gsc.h>
 #include <asm/processor.h>
@@ -35,16 +37,20 @@
 #include <asm/param.h>		/* HZ */
 #include <asm/led.h>
 #include <asm/pdc.h>
+#include <asm/uaccess.h>
 
 /* The control of the LEDs and LCDs on PARISC-machines have to be done 
    completely in software. The necessary calculations are done in a tasklet
    which is scheduled at every timer interrupt and since the calculations 
    may consume relatively much CPU-time some of the calculations can be 
-   turned off with the following defines */
-#undef NO_HEARTBEAT
-#undef NO_DISKIO
-#undef NO_LAN_RXTX
+   turned off with the following variables (controlled via procfs) */
 
+static int led_type = -1;
+static int led_heartbeat = 1;
+static int led_diskio = 1;
+static int led_lanrxtx = 1;
+static char lcd_text[32] = {0};
+
 #if 0
 #define DPRINTK(x)	printk x
 #else
@@ -110,6 +116,132 @@
 /* ptr to LCD/LED-specific function */
 static void (*led_func_ptr) (unsigned char);
 
+#define LED_HASLCD 1
+#define LED_NOLCD  0
+#ifdef CONFIG_PROC_FS
+static int led_proc_read(char *page, char **start, off_t off, int count, 
+	int *eof, void *data)
+{
+	char *out = page;
+	int len;
+
+	switch ((long)data)
+	{
+	case LED_NOLCD:
+		out += sprintf(out, "Heartbeat: %d\n", led_heartbeat);
+		out += sprintf(out, "Disk IO: %d\n", led_diskio);
+		out += sprintf(out, "LAN Rx/Tx: %d\n", led_lanrxtx);
+		break;
+	case LED_HASLCD:
+		out += sprintf(out, "%s\n", lcd_text);
+		break;
+	default:
+		*eof = 1;
+		return 0;
+	}
+
+	len = out - page - off;
+	if (len < count) {
+		*eof = 1;
+		if (len <= 0) return 0;
+	} else {
+		len = count;
+	}
+	*start = page + off;
+	return len;
+}
+
+static int led_proc_write(struct file *file, const char *buf, 
+	unsigned long count, void *data)
+{
+	const char *cur = NULL;
+	char lbuf[count];
+	int d;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
+	lcopy_from_user(lbuf, buf, count);
+	cur = lbuf;
+
+	/* skip initial spaces */
+	while (*cur && isspace(*cur))
+	{
+		cur++;
+	}
+
+	switch ((long)data)
+	{
+	case LED_NOLCD:
+		d = *cur++ - '0';
+		if (d != 0 && d != 1) goto parse_error;
+		led_heartbeat = d;
+
+		if (*cur++ != ' ') goto parse_error;
+
+		d = *cur++ - '0';
+		if (d != 0 && d != 1) goto parse_error;
+		led_diskio = d;
+
+		if (*cur++ != ' ') goto parse_error;
+
+		d = *cur++ - '0';
+		if (d != 0 && d != 1) goto parse_error;
+		led_lanrxtx = d;
+
+		break;
+	case LED_HASLCD:
+		if (*cur == 0) 
+		{
+			/* reset to default */
+			lcd_print("Linux " UTS_RELEASE);
+		}
+		else
+		{
+			lcd_print(cur);
+		}
+		break;
+	default:
+		return 0;
+	}
+	
+	return count;
+
+parse_error:
+	if ((long)data == LED_NOLCD)
+		printk(KERN_CRIT "Parse error: expect \"n n n\" (n == 0 or 1) for heartbeat,\ndisk io and lan tx/rx indicators\n");
+	return -EINVAL;
+}
+
+static int __init led_create_procfs(void)
+{
+	struct proc_dir_entry *proc_pdc_root = NULL;
+	struct proc_dir_entry *ent;
+
+	if (led_type == -1) return -1;
+
+	proc_pdc_root = proc_mkdir("pdc", 0);
+	if (!proc_pdc_root) return -1;
+	ent = create_proc_entry("led", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
+	if (!ent) return -1;
+	ent->nlink = 1;
+	ent->data = (void *)LED_NOLCD; /* LED */
+	ent->read_proc = led_proc_read;
+	ent->write_proc = led_proc_write;
+
+	if (led_type == LED_HASLCD)
+	{
+		ent = create_proc_entry("lcd", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
+		if (!ent) return -1;
+		ent->nlink = 1;
+		ent->data = (void *)LED_HASLCD; /* LCD */
+		ent->read_proc = led_proc_read;
+		ent->write_proc = led_proc_write;
+	}
+
+	return 0;
+}
+#endif
 
 /*
    ** 
@@ -208,7 +340,6 @@
    ** (analog to dev_get_info() from net/core/dev.c)
    **   
  */
-#ifndef NO_LAN_RXTX
 static unsigned long led_net_rx_counter, led_net_tx_counter;
 
 static void led_get_net_stats(int addvalue)
@@ -244,7 +375,6 @@
 	rx_total_last += rx_total;
         tx_total_last += tx_total;
 }
-#endif /* NO_LAN_RXTX */
 
 
 /*
@@ -255,7 +385,6 @@
    ** (analog to linux/fs/proc/proc_misc.c)
    **   
  */
-#ifndef NO_DISKIO
 static unsigned long led_diskio_counter;
 
 static void led_get_diskio_stats(int addvalue)
@@ -280,7 +409,6 @@
 	
 	diskio_total_last += total; 
 }
-#endif /* NO_DISKIO */
 
 
 
@@ -315,49 +443,52 @@
 	if (++count_HZ == HZ)
 	    count_HZ = 0;
 
-#ifndef NO_HEARTBEAT
-	/* flash heartbeat-LED like a real heart (2 x short then a long delay) */
-	if (count_HZ<HEARTBEAT_LEN || 
-	    (count_HZ>=HEARTBEAT_2ND_RANGE_START && count_HZ<HEARTBEAT_2ND_RANGE_END)) 
-	    currentleds |= LED_HEARTBEAT;
-	else
-	    currentleds &= ~LED_HEARTBEAT;
-#endif
+	if (led_heartbeat)
+	{
+		/* flash heartbeat-LED like a real heart (2 x short then a long delay) */
+		if (count_HZ<HEARTBEAT_LEN || 
+		    (count_HZ>=HEARTBEAT_2ND_RANGE_START && count_HZ<HEARTBEAT_2ND_RANGE_END)) 
+		    currentleds |= LED_HEARTBEAT;
+		else
+		    currentleds &= ~LED_HEARTBEAT;
+	}
 
 	/* gather network and diskio statistics and flash LEDs respectively */
 
-#ifndef NO_LAN_RXTX
-	if ((count & 31) == 0)
-	    led_get_net_stats(30);
-
-	if (led_net_rx_counter) {
-	    led_net_rx_counter--;
-	    currentleds |= LED_LAN_RCV;
-	}
-	else    
-	    currentleds &= ~LED_LAN_RCV;
-
-	if (led_net_tx_counter) {
-	    led_net_tx_counter--;
-	    currentleds |= LED_LAN_TX;
+	if (led_lanrxtx)
+	{
+		if ((count & 31) == 0)
+			led_get_net_stats(30);
+
+		if (led_net_rx_counter) {
+			led_net_rx_counter--;
+			currentleds |= LED_LAN_RCV;
+		}
+		else    
+			currentleds &= ~LED_LAN_RCV;
+
+		if (led_net_tx_counter) {
+			led_net_tx_counter--;
+			currentleds |= LED_LAN_TX;
+		}
+		else    
+			currentleds &= ~LED_LAN_TX;
+	}
+
+	if (led_diskio)
+	{
+		/* avoid to calculate diskio-stats at same irq as netio-stats ! */
+		if ((count & 31) == 15) 
+			led_get_diskio_stats(30);
+
+		if (led_diskio_counter) {
+			led_diskio_counter--;
+			currentleds |= LED_DISK_IO;
+		}
+		else    
+			currentleds &= ~LED_DISK_IO;
 	}
-	else    
-	    currentleds &= ~LED_LAN_TX;
-#endif
 
-#ifndef NO_DISKIO
-	/* avoid to calculate diskio-stats at same irq as netio-stats ! */
-	if ((count & 31) == 15) 
-	    led_get_diskio_stats(30);
-
-	if (led_diskio_counter) {
-	    led_diskio_counter--;
-	    currentleds |= LED_DISK_IO;
-	}
-	else    
-	    currentleds &= ~LED_DISK_IO;
-#endif
-
 	/* update the LCD/LEDs */
 	if (currentleds != lastleds) {
 	    led_func_ptr(currentleds);
@@ -435,12 +566,14 @@
 			LCD_CMD_REG , LCD_DATA_REG);
 		led_func_ptr = led_LCD_driver;
 		lcd_print( "Linux " UTS_RELEASE );
+		led_type = LED_HASLCD;
 		break;
 
 	case DISPLAY_MODEL_LASI:
 		LED_DATA_REG = data_reg;
 		led_func_ptr = led_LASI_driver;
 		printk(KERN_INFO "LED display at %p registered\n", LED_DATA_REG);
+		led_type = LED_NOLCD;
 		break;
 
 	case DISPLAY_MODEL_OLD_ASP:
@@ -448,6 +581,7 @@
 		led_func_ptr = led_ASP_driver;
 		printk(KERN_INFO "LED (ASP-style) display at %p registered\n", 
 		    LED_DATA_REG);
+		led_type = LED_NOLCD;
 		break;
 
 	default:
@@ -509,6 +643,9 @@
 	if (!led_func_ptr || lcd_info.model != DISPLAY_MODEL_LCD)
 	    return 0;
 	
+	/* copy display string to buffer for procfs */
+	strncpy(lcd_text, str, sizeof(lcd_text)-1);
+	
 	/* temporarily disable the led tasklet */
 	tasklet_disable(&led_tasklet);
 
@@ -619,3 +756,7 @@
 	lcd_info.model = DISPLAY_MODEL_NONE;
 	return 1;
 }
+
+#ifdef CONFIG_PROC_FS
+module_init(led_create_procfs)
+#endif




From - Thu Nov 08 21:19:42 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] [patch] /proc interface for LED/LCD
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On Saturday 06 October 2001 22:42, Randolph Chung wrote:
> hi all,
>
> the attached patch creates a /proc interface for boxes with LED/LCD
> support. For example:
> ......
> I've only tested it on a c3000 (only machine i have with led/lcd
> support). Would appreciate if folks can try it on other machines and let
> me know if it works :)

Hi Randolph,

Nice patch !

I've tested it on my 715/64 (with LEDs) and on the c3k (w/ LCD).
On the 715/64 your patch works as expected, but on my c3k I neither
get anything on the LCD nor the /proc/pdc/lcd file.
I know that this doesn't happen due to your patch because I 
didn't got the LCD to work before applying your patch too.
As far as I debugged it until now the pdc_chassis_info() call in
led_init() now returns -10 (PDC_INVALID_ARG) as result code, so maybe
something other is busted here.
Maybe you have any idea ?
All tests were done with the same 32bit kernel binary on both machines
and with your patch to inventory.c applied. I never tested a 64bit kernel
in case this should be relevant.

Helge




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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] [patch] /proc interface for LED/LCD
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> I know that this doesn't happen due to your patch because I 
> didn't got the LCD to work before applying your patch too.
> As far as I debugged it until now the pdc_chassis_info() call in
> led_init() now returns -10 (PDC_INVALID_ARG) as result code, so maybe
> something other is busted here.
> Maybe you have any idea ?

In my other post I mentioned you also need a fix to firmware.c .. did
you pick that up too?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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I just finished fixing up the iomem resources for system ram / rom +
kernel code & data.  I'm not sure the original author set them up right.
Here's the output on a C360:

00000000-3fffffff : System RAM                                                  
  00000000-000009ff : PDC data (Page Zero)                                      
  00100000-00279fff : Kernel code                                               
  0027a000-0035ff4b : Kernel data                                               
f0000000-f00fffff : System ROM                                                  

Is the `System ROM' supposed to be the `PDC Address Space'
mentioned in the PA 2.0 manual on page 3-2?If so, it should
presumably be f0000000-f0ffffff on 32-bit machines, and
f000000000000000-f0ffffffffffffff on 64-bit machines.

The L2k has a slightly bizarre output:

00000000-1ffffffff : System RAM                                                 
  00000000-000009ff : PDC data (Page Zero)                                      
  00100000-0032bfff : Kernel code                                               
  0032c000-0049ed7b : Kernel data                                               

should have two ranges -- 00000000-efffffff and 100000000 to 1ffffffff.
Going to debug that before committing.

-- 
Revolutions do not require corporate support.




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Helge Deller wrote:
> Hi Grant,

Hi Helge!

> The LED/ChassisCodes are already updated by the led_halt() function, called
> by the reboot notifier chain. machine_halt() is called by sys_reboot(), so we
>    need
> to let it be a NOP, or just #define it as NOP.

Ok. NOP it will stay.

> machine_power_on could be deleted AFAIT.

I'll deal with that.

> Does the PA CPU has bugs ? :-)

Unfortunately, a few here and there. I've seen the bug lists
(eg 2.3 vs 2.4 Cuda) but don't understand all the issues.

I posted this mostly to make folks aware.
This is the place to put CPU-bug detection code so work-arounds
in other parts of the code can use known state.

grant




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On Sun, Oct 07, 2001 at 01:30:44AM +0100, Matthew Wilcox wrote:
> 00000000-1ffffffff : System RAM
>   00000000-000009ff : PDC data (Page Zero)
>   00100000-0032bfff : Kernel code
>   0032c000-0049ed7b : Kernel data

Fixed it:

# cat /proc/iomem
00000000-efffffff : System RAM
  00000000-000009ff : PDC data (Page Zero)
  00100000-0032bfff : Kernel code
  0032c000-0049ed7b : Kernel data
f0000000-f00fffff : System ROM
100000000-1ffffffff : System RAM

I'll commit the diff shortly.

-- 
Revolutions do not require corporate support.




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> The assertion fails.
> The address in r21/r25 is 0x15b78, which is clearly not a valid
> address, and thus dl's printf barfs.

I got the new gcc to build (3.0.2 cvs 20010922) and tried glibc again... it dies
similarly while trying to run ld.so ...

Program received signal SIGSEGV, Segmentation fault.
_dl_debug_vdprintf (fd=0, tag_p=0, 
    fmt=0x17cdc <Address 0x17cdc out of bounds>, arg=0xbff005d8)
    at dl-misc.c:101
101       while (*fmt != '\0')
(gdb) bt
#0  _dl_debug_vdprintf (fd=0, tag_p=0, 
    fmt=0x17cdc <Address 0x17cdc out of bounds>, arg=0xbff005d8)
    at dl-misc.c:101
#1  0x4100eb68 in _dl_dprintf (fd=2, 
    fmt=0x17cdc <Address 0x17cdc out of bounds>) at dl-misc.c:279
#2  0x41012b6c in __assert_fail (
    assertion=0x15bac <Address 0x15bac out of bounds>, file=0x0, line=62, 
    function=0xbff005d8 "") at dl-minimal.c:190
#3  0x410031d4 in _dl_start (arg=0xbff00224) at rtld.c:62
#4  0x41002af8 in _dl_start_user () at rtld.c:143

I'll try to debug it some more tomorrow.

BenC (debian's glibc maintainer) also claims that the hppa patch in
glibc breaks linuxthreads (runtime) on other architectures. Does anyone 
know anything about this?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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On Sunday 07 October 2001 00:34, Randolph Chung wrote:
> > I know that this doesn't happen due to your patch because I
> > didn't got the LCD to work before applying your patch too.
> > As far as I debugged it until now the pdc_chassis_info() call in
> > led_init() now returns -10 (PDC_INVALID_ARG) as result code, so maybe
> > something other is busted here.
> > Maybe you have any idea ?
>
> In my other post I mentioned you also need a fix to firmware.c .. did
> you pick that up too?
>
> randolph

Yes, I did. Unfortunately I mentioned inventory.c, but originally meant 
firmware.c in my previous mail.

Helge




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Subject: Re: [parisc-linux] Second Draft of the help for the kernel options
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To: Thomas Marteau <marteaut@esiee.fr>
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On Tue, Oct 02, 2001 at 01:16:39AM +0200, Thomas Marteau wrote:
> Processor family
> CONFIG_PA7100
>   In this section, you will find enough informations to set correctly 
>   your CPU type option. Nevertheless, if you need more, you can see 
>   all the hardware content of your box at http://hwdb.parisc-linux.org.
>   
>   If you select the PA7000/PA7100 option, your box must be one of these 
>   listed below: 705/35, 710/50, 715/33, 715/50, 715/75, 720/50, 725/50, 
>   725/75, 730/66, 735/99, 735/125, 750/66, 755/99.
> 
>   If you select the PA7200 option, your box must be one of these listed 
>   below: C100, C110, D250, D350, D260, D360, J200, J210, K100, K200, 
>   K210, K220, K400, K410, K420.
> 
>   If you choose the PA7100LC/PA7300LC option then your box is 715/64, 
>   715/80, 715/100, 725/100, A180, B132L(+), B160L(+), B180L(+), C160L, 
>   C180L, D200, D210, D220, D230, D300, D310, D320 or D330. There are 
>   also some systems from the E series but there are not yet supported.
> 
>   Finally, PA8x00 is the good choice for all new stuff like A500, B1000,
>   B2000, B2600, C200+, C240+, C3000, C3600, J282, J2240, J5000, J6000, 
>   J6700, J7000, K250, K260, K270, K370, K450, K460, K470, K570, L1000, 
>   L2000, L3000, N4000, V2200, V2250, V2500.
> 
>   Now, you should be sure of which CPU type. If not, please send a mail 
>   to parisc-linux@lists.parisc-linux.org.

Let's try this in the style of the x86 one:

Processor family
CONFIG_PA7100
  This is the processor type of your CPU. This information is used for
  optimizing purposes. In order to compile a kernel that can run on
  all 32-bit PA-RISC processors, you can specify PA7000 here.  If you
  have a 64-bit machine, you may need to select PA8x00 here and say
  'y' to '64-bit kernel' below.

  The kernel will not necessarily run on earlier architectures than
  the one you have chosen, e.g. a PA7200 optimised kernel will run on
  a PA8000 cpu, but not a PA7000.

  If you don't know what type of CPU you have, you can refer to the
  Hardware Database at http://hwdb.parisc-linux.org/

> 64-bit kernel
> CONFIG_PARISC64
>   The 64-bit kernel support give the capability of using 64-bit CPU to 
>   the kernel. This is useful for PA8X00 series minimum. Note that even
>   if your kernel is 64-bit, your userspace will be in 32-bit.

64-bit kernel
CONFIG_PARISC64
  Selecting this option will build a 64-bit kernel.  Some 64-bit machines
  require a 64-bit kernel (eg L2000, A500) while other machines don't
  have 64-bit firmware (eg C360, J200), so you may need to enable 32-bit
  PDC below if you select this option.  Note that 64-bit userspace is
  not yet supported.

32-bit PDC
CONFIG_PDC_NARROW
  Turning this option on enables support for 32-bit firmware when running
  a 64-bit kernel.  You should select this option if you have a machine
  from the C160-J2240 era.

-- 
Revolutions do not require corporate support.




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Matthew Wilcox wrote:
> 32-bit PDC
> CONFIG_PDC_NARROW
>   Turning this option on enables support for 32-bit firmware when running
>   a 64-bit kernel.  You should select this option if you have a machine
>   from the C160-J2240 era.

s/machine/workstation/
I'm pretty sure all 64-bit capable servers properly handle
PDC calls in wide mode. PAT PDC supports a few calls in
narrow mode (for boot loader) but the rest must be in wide mode.

Note that IODC generally requires narrow mode.
(Superdome IODC is different - but I don't recall exactly how).

BTW, I prefer Matthew's rewrite over the Thomas' proposal.
No offense intended thomas - thanks for submitting the original.

grant




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Subject: Re: [parisc-linux] A todo entry
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Hi!
 
> Someone was asking for a job to do.  Here's one.

It was probably me.

> In include/asm-parisc/uaccess.h, we have a couple of functions which
> look like this:
> 
> #define __get_user(x,ptr)                               \
> ({                                                      \
>         register long __gu_err __asm__ ("r8") = 0;      \
>         register long __gu_val __asm__ ("r9") = 0;      \
>                                                         \
>         if (segment_eq(get_fs(),KERNEL_DS)) {           \
>             switch (sizeof(*(ptr))) {                   \
>             case 1: __get_kernel_asm("ldb",ptr); break; \
>             case 2: __get_kernel_asm("ldh",ptr); break; \
>             case 4: __get_kernel_asm("ldw",ptr); break; \
>             case 8: __get_kernel_asm("ldd",ptr); break; \
>             default: BUG(); break;                      \
>             }                                           \
>         }                                               \
>         else {                                          \
>             switch (sizeof(*(ptr))) {                   \
>             case 1: __get_user_asm("ldb",ptr); break;   \
>             case 2: __get_user_asm("ldh",ptr); break;   \
>             case 4: __get_user_asm("ldw",ptr); break;   \
>             case 8: __get_user_asm("ldd",ptr); break;   \
>             default: BUG(); break;                      \
>             }                                           \
>         }                                               \
>                                                         \
>         (x) = (__typeof__(*(ptr))) __gu_val;            \
>         __gu_err;                                       \
> })
> 
> This is rather suboptimal.  The way it should be done is to always
> access userspace through %sr2 (currently listed as unused).  Set sr2
> to the same value as sr3 normally.  Set it to 0 when someone does a
> set_fs(KERNEL_DS), and to sr3 when USER_DS.  get_fs() should return the
> value of sr2.  None of these functions are called frequently, so there's
> no need to cache the values outside the space registers.

This is slightly over my head, but that is my understanding of what needs
to be done: instead of checking with segment_eq we need a routine,
which just reads from memory, using space from sr2. With proposed
modifications to get_fs, get_ds and set_fs it will automagically contain
a correct value (0 for kernel memory and same as sr3 for userspace).

Is it the correct interpretation? Is it still possible to do in view
of John's comment?

Best regards,

Jurij.







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Subject: [parisc-linux] Catching interrupt from power switch
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Hi!

I am obsessed with idea of catching interrupt from power switch
(it should be possible, according to Lasi docs) and making a
clean shutdown. I thought, that when power button is set to "off", 
trap 2 (power failure interruption) will be generated. Strangely
enough, it didn't. What's wrong? The I-bit in the PSW, controlling
the masking/unmasking of this (and some other interruptions) seems
to be set, so the interruption is unmasked. Anyone has any ideas?

Cheers,

Jurij







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From: Jurij Smakov <jurij@lokmail.net>
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Subject: Re: [parisc-linux] Glibc 2.2.4-2 Woes...
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> 
> M,
> 
> I see what you mean now.
> I have glibc 2.2.4-2 compiling all the way to the point where it
> starts churning thorugh:
> 
> make  -C sunrpc others

Hi!

Stuff fails in sunrpc, because it tries to do something like

rpcgen -Y `gcc -print-file-name=cpp | sed 's|/cpp$||'`

Argument to -Y option should be the dir, where cpp is located, so the
build expects, that `gcc -print-file-name=cpp` will return a full
path to cpp. Well, it does not. It spits out "cpp" and then sed
replacement fails, so the actual command being run is

rpcgen -Y cpp/cpp

It is probably easily fixable, but there is also a simple workaround:

cd .../glibc/sunrpc (NOT glibc-build)
mkdir cpp
cd cpp
ln -s /path_to_real_cpp/cpp cpp

After that I was able to finish the build.

Best regards,

Jurij.







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Subject: Re: [parisc-linux] A todo entry
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On Mon, Oct 08, 2001 at 04:15:34AM -0400, Jurij Smakov wrote:
> It was probably me.

probably.  various people hae asked in the past, but you're the most
recent :-)

> This is slightly over my head, but that is my understanding of what needs
> to be done: instead of checking with segment_eq we need a routine,
> which just reads from memory, using space from sr2. With proposed
> modifications to get_fs, get_ds and set_fs it will automagically contain
> a correct value (0 for kernel memory and same as sr3 for userspace).

Right.

> Is it the correct interpretation? Is it still possible to do in view
> of John's comment?

Certainly; John was just pointing out some of the issues to be aware of.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] Second Draft of the help for the kernel options
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To: Grant Grundler <grundler@puffin.external.hp.com>
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Hi all,

	I have put the Matthew Wilcox's CPU and 64bit section. For the PDC
narrow, a section was already written. So, I do not the change unless
you tell that:
"
32-bit PDC
CONFIG_PDC_NARROW
  Turning this option on enables support for 32-bit firmware when
running
  a 64-bit kernel.  You should select this option if you have a
workstation
  from the C160-J2240 era.
"
is better than:
"
32-bit PDC
CONFIG_PDC_NARROW
  Saying Y here will allow developers with a C180, C200, C240, C360,
  J200, J210, and/or a J2240 to test 64-bit kernels by providing 
  a wrapper for the 32-bit PDC calls.  Since the machines which 
  which require this option do not support over 4G of RAM, this
  option is targeted for developers of these machines wishing to
  test changes on both 32-bit and 64-bit configurations.

  If unsure, say N.
"

Anyway, thanks for your comment and if you have any idea, please mail
me, Thomas.
ESIEE Team




From - Thu Nov 08 21:19:43 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Second Draft of the help for the kernel options
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My reasoning for the wording was that you're only presented with this
option when you've already selected a 64-bit kernel.

-- 
Revolutions do not require corporate support.




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From: joel.soete@freebel.net
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Subject: [parisc-linux] LVM 1.0.1-rc4 on hppa
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Hi all,

I just co the last cvs of kernel 2.4.9-pa42 and everything seems to work find as 
well as on model 712 as on model B180.

Then I try to have a look into LVM (last 1.0.1-rc4)on the B180:
no error at compile time neither for kernel neither for tools (just warning: 
pv_read_all_pv_of_vg.c:129: warning: deprecated use of label at end of compound 
statement)

Then I try first to do a 'pvcreate /dev/sdb' which failed:
vpcreate -- ERROR: "/etc/lvmtab" doesn't exist; please run vgscan

Also I excute 'vgscan':
Segmentation fault.

Here is my last kernel log:
Oct  8 17:01:44 palinux kernel: klogd 1.4.1#2, log source = /proc/kmsg started.
Oct  8 17:01:44 palinux kernel: Inspecting /boot/System.map-2.4.9-pa42
Oct  8 17:01:46 palinux kernel: Loaded 24521 symbols from 
/boot/System.map-2.4.9-pa42.
Oct  8 17:01:46 palinux kernel: Symbols match kernel version 2.4.9.
Oct  8 17:01:46 palinux kernel: No module symbols loaded - kernel modules not 
enabled. 
Oct  8 17:01:46 palinux kernel: Linux version 2.4.9-pa42 (root@palinux) (gcc 
version 3.0 (Debian)) #2 Mon Oct 8 15:47:51 CEST 2001
Oct  8 17:01:46 palinux kernel: FP[0] enabled: Rev 1 Model 15
Oct  8 17:01:46 palinux kernel: The 32-bit Kernel has started...
Oct  8 17:01:46 palinux kernel: Determining PDC firmware type: System Map.
Oct  8 17:01:46 palinux kernel: model^I00005040 00000481 00000000 02020202 
77ea2456 100000f0 00000004 000000ba 000000ba
Oct  8 17:01:46 palinux kernel: vers^I00000018
Oct  8 17:01:46 palinux kernel: cpuid^I000001f8
Oct  8 17:01:46 palinux kernel: CPUID^Ivers 15 rev 24
Oct  8 17:01:46 palinux kernel: model^I9000/778/B180L
Oct  8 17:01:46 palinux kernel: Total Memory: 128 Mb
Oct  8 17:01:46 palinux kernel: pagetable_init
Oct  8 17:01:46 palinux kernel: On node 0 totalpages: 32768
Oct  8 17:01:46 palinux kernel: zone(0): 32768 pages.
Oct  8 17:01:46 palinux kernel: zone(1): 0 pages.
Oct  8 17:01:46 palinux kernel: zone(2): 0 pages.
Oct  8 17:01:46 palinux kernel: Kernel command line: root=/dev/sda3 HOME=/ 
console=tty0 sti=0 sti_font=VGA8x16 TERM=linux
Oct  8 17:01:46 palinux kernel: Console: colour dummy device 160x64
Oct  8 17:01:46 palinux kernel: Calibrating delay loop... 119.60 BogoMIPS
Oct  8 17:01:46 palinux kernel: Memory: 126052k available
Oct  8 17:01:46 palinux kernel: Dentry-cache hash table entries: 16384 (order: 
5, 131072 bytes)
Oct  8 17:01:46 palinux kernel: Inode-cache hash table entries: 8192 (order: 4, 
65536 bytes)
Oct  8 17:01:46 palinux kernel: Mount-cache hash table entries: 2048 (order: 2, 
16384 bytes)
Oct  8 17:01:46 palinux kernel: Buffer-cache hash table entries: 4096 (order: 2, 
16384 bytes)
Oct  8 17:01:46 palinux kernel: Page-cache hash table entries: 32768 (order: 5, 
131072 bytes)
Oct  8 17:01:46 palinux kernel: POSIX conformance testing by UNIFIX
Oct  8 17:01:46 palinux kernel: Searching for devices...
Oct  8 17:01:46 palinux kernel: Found devices:
Oct  8 17:01:46 palinux kernel: 1. Phantom PseudoBC GSC+ Port (7) at 0xffc00000, 
versions 0x504, 0x0, 0x0
Oct  8 17:01:46 palinux kernel: 2. Merlin+ 132 Dino RS-232 (10) at 0xfff83000, 
versions 0x22, 0x0, 0x8c
Oct  8 17:01:46 palinux kernel: 3. Merlin L2+ 180 (9000/778/B180L) (0) at 
0xfffbe000, versions 0x504, 0x0, 0x4
Oct  8 17:01:46 palinux kernel: 4. Merlin+ L2 180 (1) at 0xfffbf000, versions 
0x5a, 0x0, 0x9
Oct  8 17:01:46 palinux kernel: 5. Merlin+ 180 Core BA (11) at 0xffd00000, 
versions 0x3f, 0x0, 0x81,  additional addresses: 0xffc00000 
Oct  8 17:01:46 palinux kernel: 6. Merlin+ 180 Core RS-232 (10) at 0xffd05000, 
versions 0x3f, 0x0, 0x8c
Oct  8 17:01:46 palinux kernel: 7. Merlin+ 180 Core SCSI (10) at 0xffd06000, 
versions 0x3f, 0x0, 0x82
Oct  8 17:01:46 palinux kernel: 8. Merlin+ 180 Core Centronics (10) at 
0xffd02000, versions 0x3f, 0x0, 0x74,  additional addresses: 0xffd03000 
Oct  8 17:01:46 palinux kernel: 9. Merlin+ 180 Core Audio (10) at 0xffd04000, 
versions 0x3f, 0x4, 0x7b
Oct  8 17:01:46 palinux kernel: 10. Merlin+ 180 Core PS/2 Port (10) at 
0xffd08000, versions 0x3f, 0x0, 0x84
Oct  8 17:01:46 palinux kernel: 11. Merlin+ 180 Core PS/2 Port (10) at 
0xffd08100, versions 0x3f, 0x0, 0x84
Oct  8 17:01:46 palinux kernel: 12. Gecko GSC Core Graphics (10) at 0xf8000000, 
versions 0x16, 0x0, 0x85
Oct  8 17:01:46 palinux kernel: 13. Dino PCI Bridge (13) at 0xfff80000, versions 
0x680, 0x3, 0xa
Oct  8 17:01:46 palinux kernel: 14. Merlin+ 132 Dino PS/2 Port (10) at 
0xfff81000, versions 0x22, 0x0, 0x96
Oct  8 17:01:46 palinux kernel: That's a total of 14 devices.
Oct  8 17:01:46 palinux kernel: CPU(s): 1 x PA7300LC (PCX-L2) at 180.000000 MHz
Oct  8 17:01:46 palinux kernel: Dino version 3.1 found at 0xfff80000
Oct  8 17:01:46 palinux kernel: Lasi version 0 at 0xffd00000 found.
Oct  8 17:01:46 palinux kernel: LED display at ffd0c000 registered
Oct  8 17:01:46 palinux kernel: Linux NET4.0 for Linux 2.4
Oct  8 17:01:46 palinux kernel: Based upon Swansea University Computer Society 
NET3.039
Oct  8 17:01:46 palinux kernel: Starting kswapd v1.8
Oct  8 17:01:46 palinux kernel: parport_init_chip: initialize 
bidirectional-mode.
Oct  8 17:01:46 palinux kernel: parport0: PC-style at 0xffd02800, irq 152 
[PCSPP,TRISTATE]
Oct  8 17:01:46 palinux kernel: STI word mode ROM at f0011000, hpa=f8000000
Oct  8 17:01:46 palinux kernel: STI word mode ROM, id 2d08c0a7-9a02587, conforms 
to spec rev. 8.07
Oct  8 17:01:46 palinux kernel: STI device: INTERNAL_EG_1280
Oct  8 17:01:46 palinux kernel: pty: 256 Unix98 ptys configured
Oct  8 17:01:46 palinux kernel: Serial driver version 5.05c (2001-07-08) with 
MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Oct  8 17:01:46 palinux kernel: ttyS00 at iomem 0xffd05800 (irq = 154) is a 
16550A
Oct  8 17:01:46 palinux kernel: ttyS01 at iomem 0xfff83800 (irq = 74) is a 
16550A
Oct  8 17:01:46 palinux kernel: PS/2 keyboard port at 0xffd08000 (irq 133) 
found, device attached.
Oct  8 17:01:46 palinux kernel: PS/2 psaux port at 0xffd08100 (irq 133) found, 
device attached.
Oct  8 17:01:46 palinux kernel: lp0: using parport0 (interrupt-driven).
Oct  8 17:01:46 palinux kernel: Generic RTC Driver v1.02 05/27/1999 Sam Creasey 
(sammy@oh.verio.com)
Oct  8 17:01:46 palinux kernel: block: 128 slots per queue, batch=16
Oct  8 17:01:46 palinux kernel: RAMDISK driver initialized: 16 RAM disks of 
4096K size 1024 blocksize
Oct  8 17:01:46 palinux kernel: loop: loaded (max 8 devices)
Oct  8 17:01:46 palinux kernel: Linux Tulip driver version 0.9.15-pre6 (July 2, 
2001)
Oct  8 17:01:46 palinux kernel: tulip0: no phy info, aborting mtable build
Oct  8 17:01:46 palinux kernel: tulip0:  MII transceiver #1 config 1000 status 
782d advertising 01e1.
Oct  8 17:01:46 palinux kernel: eth0: Digital DS21143 Tulip rev 65 at 0xff00, 
00:10:83:65:09:4B, IRQ 64.
Oct  8 17:01:46 palinux kernel: SCSI subsystem driver Revision: 1.00
Oct  8 17:01:46 palinux kernel: sym53c8xx: at PCI bus 0, device 19, function 0
Oct  8 17:01:46 palinux kernel: sym53c8xx: 53c875 detected 
Oct  8 17:01:46 palinux kernel: sym53c875-0: rev 0x4 on pci bus 0 device 19 
function 0 irq 67
Oct  8 17:01:46 palinux kernel: sym53c875-0: ID 7, Fast-20, Parity Checking
Oct  8 17:01:46 palinux kernel: scsi0 : sym53c8xx-1.7.3c-20010512
Oct  8 17:01:46 palinux kernel:   Vendor: SEAGATE   Model: ST39140WS         
Rev: HP03
Oct  8 17:01:46 palinux kernel:   Type:   Direct-Access                      
ANSI SCSI revision: 02
Oct  8 17:01:46 palinux kernel: sim700: Configuring 53c710 (SCSI-ID 7) at 
ffd06100, IRQ 150, options 0
Oct  8 17:01:46 palinux kernel: scsi1: Revision 0x2
Oct  8 17:01:46 palinux kernel: scsi1: test 1 completed ok.
Oct  8 17:01:46 palinux kernel: scsi1 : LASI/Simple 53c7xx
Oct  8 17:01:46 palinux kernel:   Vendor: SEAGATE   Model: ST32151N          
Rev: HP02
Oct  8 17:01:46 palinux kernel:   Type:   Direct-Access                      
ANSI SCSI revision: 02
Oct  8 17:01:46 palinux kernel: Attached scsi disk sda at scsi0, channel 0, id 
6, lun 0
Oct  8 17:01:46 palinux kernel: Attached scsi disk sdb at scsi1, channel 0, id 
0, lun 0
Oct  8 17:01:46 palinux kernel: sym53c875-0-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s 
(50.0 ns, offset 15)
Oct  8 17:01:46 palinux kernel: SCSI device sda: 17773524 512-byte hdwr sectors 
(9100 MB)
Oct  8 17:01:46 palinux kernel: Partition check:
Oct  8 17:01:46 palinux kernel:  sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 >
Oct  8 17:01:46 palinux kernel: SCSI device sdb: 4194685 512-byte hdwr sectors 
(2148 MB)
Oct  8 17:01:46 palinux kernel:  sdb: unknown partition table
Oct  8 17:01:46 palinux kernel: Lasi Harmony Audio rev. 0 at 0xffd04000, using 
IRQ 146
Oct  8 17:01:46 palinux kernel: sticonsole_init: searching for STI ROMs
Oct  8 17:01:46 palinux kernel: Console: switching to colour STI console 160x64
Oct  8 17:01:46 palinux kernel: md: linear personality registered
Oct  8 17:01:46 palinux kernel: md: raid0 personality registered
Oct  8 17:01:46 palinux kernel: md: raid1 personality registered
Oct  8 17:01:46 palinux kernel: md: raid5 personality registered
Oct  8 17:01:46 palinux kernel: raid5: measuring checksumming speed
Oct  8 17:01:46 palinux kernel:    8regs     :   160.000 MB/sec
Oct  8 17:01:46 palinux kernel:    8regs_prefetch:   160.000 MB/sec
Oct  8 17:01:46 palinux kernel:    32regs    :   222.800 MB/sec
Oct  8 17:01:46 palinux kernel:    32regs_prefetch:   222.800 MB/sec
Oct  8 17:01:46 palinux kernel: raid5: using function: 32regs_prefetch (222.800 
MB/sec)
Oct  8 17:01:46 palinux kernel: md: md driver 0.90.0 MAX_MD_DEVS=256, 
MD_SB_DISKS=27
Oct  8 17:01:46 palinux kernel: md: Autodetecting RAID arrays.
Oct  8 17:01:46 palinux kernel: md: autorun ...
Oct  8 17:01:46 palinux kernel: md: ... autorun DONE.
Oct  8 17:01:46 palinux kernel: LVM version 1.0.1-rc4(03/10/2001)
Oct  8 17:01:46 palinux kernel: NET4: Linux TCP/IP 1.0 for NET4.0
Oct  8 17:01:46 palinux kernel: IP Protocols: ICMP, UDP, TCP
Oct  8 17:01:46 palinux kernel: IP: routing cache hash table of 512 buckets, 
4Kbytes
Oct  8 17:01:46 palinux kernel: TCP: Hash tables configured (established 8192 
bind 16384)
Oct  8 17:01:46 palinux kernel: NET4: Unix domain sockets 1.0/SMP for Linux 
NET4.0.
Oct  8 17:01:46 palinux kernel: VFS: Mounted root (ext2 filesystem) readonly.
Oct  8 17:01:46 palinux kernel: Adding Swap: 124924k swap-space (priority -1)
Oct  8 17:01:46 palinux kernel: eth0: Setting half-duplex based on MII#1 link 
partner capability of 0021.
Oct  8 17:06:56 palinux kernel: 
Oct  8 17:06:56 palinux kernel: do_page_fault() pid=201 command='vgscan' type=15 
address=0xffffffec
Oct  8 17:06:56 palinux kernel: vm_start = 0xfaf00000, vm_end = 0xfaf02000
Oct  8 17:06:56 palinux kernel: 
Oct  8 17:06:56 palinux kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Oct  8 17:06:56 palinux kernel: PSW: 00000000000001000000000000001111
Oct  8 17:06:56 palinux kernel: r0-3^I 00000000 401c757c 4003c507 faf006c0
Oct  8 17:06:56 palinux kernel: r4-7^I 4006d0b8 0000003f 0002227c 00000001
Oct  8 17:06:56 palinux kernel: r8-11^I 00000000 00000076 00000064 0000003f
Oct  8 17:06:56 palinux kernel: r12-15^I 00011800 0002227c 00011800 0002227c
Oct  8 17:06:56 palinux kernel: r16-19^I 0002227c 00000000 00014000 401c557c
Oct  8 17:06:56 palinux kernel: r20-23^I 00000000 00000000 00000002 00000001
Oct  8 17:06:56 palinux kernel: r24-27^I 0000001f 401c07d0 00010fff 0002227c
Oct  8 17:06:56 palinux kernel: r28-31^I 00000000 00000000 faf00700 40154d23
Oct  8 17:06:56 palinux kernel: sr0-3^I 00000000 000002b8 00000000 000002b8
Oct  8 17:06:56 palinux kernel: sr4-7^I 000002b8 000002b8 000002b8 000002b8
Oct  8 17:06:56 palinux kernel: 
Oct  8 17:06:56 palinux kernel: IASQ: 000002b8 000002b8 IAOQ: 4015dc8b 4015dc8f
Oct  8 17:06:56 palinux kernel:  IIR: 4a963fd9    ISR: 000002b8  IOR: ffffffec
Oct  8 17:06:56 palinux kernel:  CPU:        0   CR30: 170d8000 CR31: 10358000
Oct  8 17:06:56 palinux kernel:  ORIG_R28: 00000003

Thanks in advance for all advices,
        joel

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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: LVM 1.0.1-rc4 on hppa
Date: Mon, 8 Oct 2001 16:22:34 +0100
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On Mon, Oct 08, 2001 at 05:08:49PM +0200, joel.soete@freebel.net wrote:
> Also I excute 'vgscan':
> Segmentation fault.
> 
> Oct  8 17:06:56 palinux kernel: do_page_fault() pid=201 command='vgscan' type=15 
> address=0xffffffec
> Oct  8 17:06:56 palinux kernel: vm_start = 0xfaf00000, vm_end = 0xfaf02000
> Oct  8 17:06:56 palinux kernel: 
> Oct  8 17:06:56 palinux kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> Oct  8 17:06:56 palinux kernel: PSW: 00000000000001000000000000001111
> Oct  8 17:06:56 palinux kernel: r0-3^I 00000000 401c757c 4003c507 faf006c0
> Oct  8 17:06:56 palinux kernel: r4-7^I 4006d0b8 0000003f 0002227c 00000001
> Oct  8 17:06:56 palinux kernel: r8-11^I 00000000 00000076 00000064 0000003f
> Oct  8 17:06:56 palinux kernel: r12-15^I 00011800 0002227c 00011800 0002227c
> Oct  8 17:06:56 palinux kernel: r16-19^I 0002227c 00000000 00014000 401c557c
> Oct  8 17:06:56 palinux kernel: r20-23^I 00000000 00000000 00000002 00000001
> Oct  8 17:06:56 palinux kernel: r24-27^I 0000001f 401c07d0 00010fff 0002227c
> Oct  8 17:06:56 palinux kernel: r28-31^I 00000000 00000000 faf00700 40154d23
> Oct  8 17:06:56 palinux kernel: sr0-3^I 00000000 000002b8 00000000 000002b8
> Oct  8 17:06:56 palinux kernel: sr4-7^I 000002b8 000002b8 000002b8 000002b8
> Oct  8 17:06:56 palinux kernel: 
> Oct  8 17:06:56 palinux kernel: IASQ: 000002b8 000002b8 IAOQ: 4015dc8b 4015dc8f
> Oct  8 17:06:56 palinux kernel:  IIR: 4a963fd9    ISR: 000002b8  IOR: ffffffec
> Oct  8 17:06:56 palinux kernel:  CPU:        0   CR30: 170d8000 CR31: 10358000
> Oct  8 17:06:56 palinux kernel:  ORIG_R28: 00000003

looks like a null pointer dereference in a shared library -- can't tell
which without seeing the maps for vgscan.  i recommend running vgscan
under gdb and seeing wht's going on.

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] Re: LVM 1.0.1-rc4 on hppa
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Joel, please don't cc messages to both parisc-linux and sistina lists.
they have a bogus closed mailing list policy which means that people
replying to your email get annoying and offensive automatic emails.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:19:43 2018
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From: joel.soete@freebel.net
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Subject: [parisc-linux] Re: LVM 1.0.1-rc4 on hppa
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Quoting Matthew Wilcox <willy@debian.org>:

> On Mon, Oct 08, 2001 at 05:08:49PM +0200, joel.soete@freebel.net wrote:
> > Also I excute 'vgscan':
> > Segmentation fault.
> > 
> > Oct  8 17:06:56 palinux kernel:  ORIG_R28: 00000003
> 
> looks like a null pointer dereference in a shared library -- can't tell
> which without seeing the maps for vgscan.  i recommend running vgscan
> under gdb and seeing wht's going on.

About gdb for hppa, may I use the one into 
"pehc /pub/parisc/binaries/debian/unofficial-debs/".

        joel

> 
> -- 
> Revolutions do not require corporate support.
> 
> 


-------------------------------------------------
This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)




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Subject: [parisc-linux] Re: LVM 1.0.1-rc4 on hppa
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On Mon, Oct 08, 2001 at 05:53:17PM +0200, joel.soete@freebel.net wrote:
> About gdb for hppa, may I use the one into 
> "pehc /pub/parisc/binaries/debian/unofficial-debs/".

Yes.  I don't know what the current status is of getting an official gdb
for PA/Linux is... Matt?

-- 
Revolutions do not require corporate support.




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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] Re: LVM 1.0.1-rc4 on hppa
Date: Mon, 8 Oct 2001 17:50:49 +0100
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On Mon, Oct 08, 2001 at 06:39:17PM +0200, hgrothe@mathematik.tu-darmstadt.de wrote:
> I guess :-) that you compiled the lvm-tools with optimization. Since 
> there seems to be a general problem with the lvm-tools and gcc3 (appears 
> also on other architectures (see lvm mailing list)) recompile the 
> lvm-tools without optimisation or "weak" optimisation (-O0).

-O0 is no optimisation, -O1 is weak optimisation and -O2 is most
optimisations.  This is normally a bug in the code, not the compiler...

-- 
Revolutions do not require corporate support.




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] Re: LVM 1.0.1-rc4 on hppa
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Xref: news.gmane.org gmane.linux.ports.parisc:12526

Matthew Wilcox writes...

> On Mon, Oct 08, 2001 at 05:53:17PM +0200, joel.soete@freebel.net wrote:
> > About gdb for hppa, may I use the one into 
> > "pehc /pub/parisc/binaries/debian/unofficial-debs/".
> 
> Yes.  I don't know what the current status is of getting an official gdb
> for PA/Linux is... Matt?

Waiting for someone(Alan Modra?) to do a merge with upstream. Once that's done 
then the changes can be sent upstream as well as incorporated in the newly 
revived debian gdb package.

Alan's been too busy to do it but if there are any other gdb gods out there 
we'd love it if someone took this on.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New scsi driver for 53c700 and 53c710 committed
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Hi,
  I've just added a new scsi driver for 53c700 and 53c710 chips to cvs.
This driver was written by James Bottomley for MCA machines, and has
been enhanced to support parisc as well.  It is intended that the
previous driver, sim700.c, will be removed once we are happy with
the new one.  The new one is 53c700.* plus lasi700.*.  I have left
the old driver in the source for the time being, but have commented out
its config question in drivers/scsi/Config.in. The CONFIG_ flag has
changed from CONFIG_SCSI_LASI to CONFIG_SCSI_LASI700.
You should certainly do at least a 'make oldconfig' once you pick up
these changes.

The main improvements in this driver are sync transfers (where the scsi
chip allows it) and tagged commands.  Also disconenct/reselect works
properly, so there is no longer any need to boot with sim700=nodisc:0xff
(or similar).

James and I have tested the driver on 712, 715/50, 715/75, B180, and
C360.  I have tested C360 with 32 and 64 bit kernels.

Please test this new drvier with your hardware and report back, if
I don't hear anything bad, the old driver will be removed.

Thanks,
  Richard





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From: Matt.VanDeWerken@csiro.au
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] New scsi driver for 53c700 and 53c710 committe
	d
Date: Tue, 9 Oct 2001 09:06:33 +1000
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So will this new driver work on the 735-series? Please tell me it's so...

Cheers,
Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - 4069
ph:  (07) 3327 4685     fax:  (07) 3327 4455
email:  m.vandewerken@cat.csiro.au


> -----Original Message-----
> From: Richard Hirst [mailto:rhirst@linuxcare.com]
> Sent: Tuesday, 9 October 2001 8:10 AM
> To: parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] New scsi driver for 53c700 and 53c710 
> committed
> 
> 
> Hi,
>   I've just added a new scsi driver for 53c700 and 53c710 
> chips to cvs.
> This driver was written by James Bottomley for MCA machines, and has
> been enhanced to support parisc as well.  It is intended that the
> previous driver, sim700.c, will be removed once we are happy with
> the new one.  The new one is 53c700.* plus lasi700.*.  I have left
> the old driver in the source for the time being, but have 
> commented out
> its config question in drivers/scsi/Config.in. The CONFIG_ flag has
> changed from CONFIG_SCSI_LASI to CONFIG_SCSI_LASI700.
> You should certainly do at least a 'make oldconfig' once you pick up
> these changes.
> 
> The main improvements in this driver are sync transfers 
> (where the scsi
> chip allows it) and tagged commands.  Also disconenct/reselect works
> properly, so there is no longer any need to boot with 
> sim700=nodisc:0xff
> (or similar).
> 
> James and I have tested the driver on 712, 715/50, 715/75, B180, and
> C360.  I have tested C360 with 32 and 64 bit kernels.
> 
> Please test this new drvier with your hardware and report back, if
> I don't hear anything bad, the old driver will be removed.
> 
> Thanks,
>   Richard
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




From - Thu Nov 08 21:19:44 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: [parisc-linux] bad loopback error msg
Date: Mon, 8 Oct 2001 18:20:15 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:12529

Hi,

Helped someone install 0.9.2 on a B180 (serial console) and following
the instructions, basically got it up and running.  He needed some help
with setting up apt (pointing to HP internal mirror).

But I couldn't figure out what was causing the following error msg
to get printed on the console every minute or so:

    ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
    skb: pf=2 (unowned) dev=lo len=328
    PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16

Any ideas?

This B180 is up-to-date but still running 2.4.0-32 vmlinux
(original kernels from 0.9.2 I think).

grant




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Subject: Re: [parisc-linux] New scsi driver for 53c700 and 53c710 committe d
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On Tue, Oct 09, 2001 at 09:06:33AM +1000, Matt.VanDeWerken@csiro.au wrote:
> So will this new driver work on the 735-series? Please tell me it's so...

I presume you're talking about the fast-wide-differential scsi port?
That's a ncr720, not 700 or 710 chip.  The basic driver for that is fine,
but it doesn't recognise the chip as being something it should drive.

-- 
Revolutions do not require corporate support.




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With the change I committed as 2.4.9-pa45, CONFIG_SMP works again.
For those with machines with discontiguous CPU numbers (eg an L2k with
only two processors), this further patch is required.  I think this is
masking a real bug which may cause problems at a later date, so I'm not
committing this workaround to CVS yet -- I'd rather find the real bug.

I've only tested on an L2k with 2 CPUs, so other testing would be
welcomed.  Thanks to jsm & grant for helping me with this.

Index: arch/parisc/kernel/processor.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/processor.c,v
retrieving revision 1.3
diff -u -p -r1.3 processor.c
--- processor.c	2001/10/06 08:00:03	1.3
+++ processor.c	2001/10/09 00:27:02
@@ -125,9 +125,9 @@ static int __init processor_probe(struct
 		txn_addr = dev->hpa;	/* for legacy PDC */
 
 		/* logical CPU ID and update global counter */
-		cpuid = boot_cpu_data.cpu_count;
 	}
 
+	cpuid = boot_cpu_data.cpu_count;
 	p = &cpu_data[cpuid];
 	boot_cpu_data.cpu_count++;

I also enabled EARLY_BOOTUP_DEBUG with the following patch to figure
out what was going on.
 
Index: arch/parisc/kernel/pdc_cons.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/pdc_cons.c,v
retrieving revision 1.28
diff -u -p -r1.28 pdc_cons.c
--- pdc_cons.c	2001/06/20 14:16:10	1.28
+++ pdc_cons.c	2001/10/09 00:27:02
@@ -12,7 +12,7 @@
 
 /* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems. 
  * On production kernels EARLY_BOOTUP_DEBUG should be undefined. */
-#undef EARLY_BOOTUP_DEBUG
+#define EARLY_BOOTUP_DEBUG
 
 
 #include <linux/config.h>

-- 
Revolutions do not require corporate support.




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Subject: RE: [parisc-linux] New scsi driver for 53c700 and 53c710 committe
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> 
> On Tue, Oct 09, 2001 at 09:06:33AM +1000, 
> Matt.VanDeWerken@csiro.au wrote:
> > So will this new driver work on the 735-series? Please tell 
> me it's so...
> 
> I presume you're talking about the fast-wide-differential scsi port?
> That's a ncr720, not 700 or 710 chip.  The basic driver for 
> that is fine,
> but it doesn't recognise the chip as being something it should drive.
> 

I assume this is still the case? I enquired a while back about getting some
documentation on this to write the driver, but I think I asked at a bad time
(I think woody/potato was about to be released). Anyway, what's the chance
of getting some documentation so I could have a crack at the driver? I'm
happy to sign an NDA or whatever I need to sign, but I'd really like this
driver, and I'd also really like to have some experience with writing
drivers. What better way than to combine the two wishes?

Cheers,
Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - 4069 - AUSTRALIA
ph:  +61-7-3327 4685     fax:  +61-7-3327 4455
email:  m.vandewerken@cat.csiro.au




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From: Marco Rodriguez <marco@kiyen.face.ubiobio.cl>
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I'm traying to boot from the parisc-linux 0.9 on one HP 9000 d350 whith
2 100 Mhz PA RISC 7200 processors but it hangs up
this is the boot mesaje and information it shows, after select the boot
from CD-ROM. if someone can tell me how to boot please or the problems i
have, thank you.

HARD Booted.
palo ipl 0.92 root@spqr Mon Jun 25 23:03:13 CEST 2001
0/vmlinux32 2853588 bytes @ 0x6ad6800
0/vmlinux64 3585851 bytes @ 0x6d8f800
0/ramdisk 1991209 bytes @ 0x70fb000

Command line: 'root=/dev/ram console=ttyS0 TERM=vt102'

Kernel: partition 0 file /vmlinux
Ramdisk: partition 0 file /ramdisk
Warning: kernel name doesn't end with 32 or 64... Guessing Annoyance:
Firmware d
oes not support PDC_MODEL_CAPABILITIES call
32
ELF32 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1606948 mediaptr 0x1000
Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
Loading ramdisk 1991209 bytes @ 07e09000...
branching to kernel entry point 0x00100000
Set default PSW W bit to 0
-- 
*-------------------------*-----------------------------------------*
| Marco Rodriguez M.      |                                         |
| Ing. Civil Informatica. |   mailto:marco@kiyen.face.ubiobio.cl    |
| U. Bio Bio Conce.       |                                         |
*-------------------------*-----------------------------------------*






From - Thu Nov 08 21:19:44 2018
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On Mon, Oct 08, 2001 at 06:20:15PM -0600, Grant Grundler wrote:
> This B180 is up-to-date but still running 2.4.0-32 vmlinux
> (original kernels from 0.9.2 I think).

Um, I think that's fatal.  You should upgrade the kernel before upgrading
glibc, or you may run into problems.

-- 
Revolutions do not require corporate support.




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* Matthew Wilcox (willy@debian.org) [011008 19:46]:
> On Mon, Oct 08, 2001 at 06:20:15PM -0600, Grant Grundler wrote:
> > This B180 is up-to-date but still running 2.4.0-32 vmlinux
> > (original kernels from 0.9.2 I think).
> 
> Um, I think that's fatal.  You should upgrade the kernel before upgrading
> glibc, or you may run into problems.


I got the same error when I originally installed 0.9.2

A 2.4.9-paxx kernel solves this.  I was able to update
the glibc and compile a new kernel with this error (setting the
log level to two with SysRq helps to filter out all of the
errors though).

-- Randall




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> > In my other post I mentioned you also need a fix to firmware.c .. did
> > you pick that up too?
> Yes, I did. Unfortunately I mentioned inventory.c, but originally meant 
> firmware.c in my previous mail.

Hrm, ok, both Grant and I also reproduced this failure with a 32-bit
kernel on a c3k. with 64-bit it's fine... looks like something odd
happening with the PDC_CHASSIS_INFO call :-(

I can't find any documentation for this hversion-specific pdc call to
fetch the led/lcd info. Can anyone point me to some docs? I can try to
debug it some more.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: joel.soete@freebel.net
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Hi Grant,

It seems to be an old problem solved by R. Hirst in its mail:
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-July/013039.html

Regards,
        Joel

-------------------------------------------------
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Quoting Matthew Wilcox <willy@debian.org>:

> On Mon, Oct 08, 2001 at 06:39:17PM +0200, hgrothe@mathematik.tu-darmstadt.de 
wrote:
> > I guess :-) that you compiled the lvm-tools with optimization. Since 
> > there seems to be a general problem with the lvm-tools and gcc3 (appears 
> > also on other architectures (see lvm mailing list)) recompile the 
> > lvm-tools without optimisation or "weak" optimisation (-O0).

The all LVM-HOWTO test seems to works fine if change -O2 to -O0 into make.tmpl.

> -O0 is no optimisation, -O1 is weak optimisation and -O2 is most
> optimisations.  This is normally a bug in the code, not the compiler...

I thinks so too.
I will try now to recompile with -O2 and -ggdb to try to have a better idea.

Thanks again for help,
        joel


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From: Richard Hirst <rhirst@linuxcare.com>
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On Mon, Oct 08, 2001 at 06:20:15PM -0600, Grant Grundler wrote:
> Hi,
> 
> Helped someone install 0.9.2 on a B180 (serial console) and following
> the instructions, basically got it up and running.  He needed some help
> with setting up apt (pointing to HP internal mirror).
> 
> But I couldn't figure out what was causing the following error msg
> to get printed on the console every minute or so:
> 
>     ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
>     skb: pf=2 (unowned) dev=lo len=328
>     PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
> 
> Any ideas?

I think this is caused by dhclient being automatically run from
init scripts, even though you have specified a manual network config.
rm /etc/rc?.d/*dhclient or similar should help.  dhclient should
only be invoked via ifup/ifdown, but earlier versions installed
rc scripts as well.

Richard





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Quoting joel.soete@freebel.net:

> Quoting Matthew Wilcox <willy@debian.org>:
> 
> > On Mon, Oct 08, 2001 at 06:39:17PM +0200,
> hgrothe@mathematik.tu-darmstadt.de 
> wrote:
> > > I guess :-) that you compiled the lvm-tools with optimization. Since
> 
> > > there seems to be a general problem with the lvm-tools and gcc3
> (appears 
> > > also on other architectures (see lvm mailing list)) recompile the 
> > > lvm-tools without optimisation or "weak" optimisation (-O0).
> 
> The all LVM-HOWTO test seems to works fine if change -O2 to -O0 into
> make.tmpl.
> 
> > -O0 is no optimisation, -O1 is weak optimisation and -O2 is most
> > optimisations.  This is normally a bug in the code, not the
> compiler...
> 
> I thinks so too.
> I will try now to recompile with -O2 and -ggdb to try to have a better
> idea.

ddd (as well gdb) failed on message:
0x4015dc88 in mocount () from /lib/libc.so.6

into call lvm_dont_interrupt (0);

which is a "simple loop on s" calling 'signal(s,SIG_IGN)' if s is not SIGKILL.

What could be broken?


Thanks again for help,
        joel


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From: Grant Grundler <grundler@puffin.external.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:12541

Grant Grundler wrote:
> Hi all,
> In summary, it looks like unwritten file can be deleted.
> Notes from reviewing Documentation/parisc/unwritten are appended.

Update of remaining items appended.  I'll file wishlist
severity bugs for the those items unless told otherwise.
And then delete unwritten and close kernel bug #35.

I've committed the "easy" changes (diff appended).
Since I'm only removing unused stuff, no -paXX change.

thanks,
grant

csum_partial_copy
csum_partial_copy_from_user
		arch/parisc/lib/checksum.c
		We want optimized asm for both of those.

do_check_pgt_cache	arch/parisc/mm/init.c
		NOP. this seems wrong.
		all the other arches have (about) the same thing here.
		sparc64 has some CONFIG_SMP in it.

sigaddset
sigdelset	include/linux/signal.h
		Only i386 and m68k define __HAVE_ARCH_SIG_BITOPS.
		parisc ends up using "generic" code like most other arches.
		Is this an issue?



Index: Documentation/parisc/unwritten
===================================================================
RCS file: /home/cvs/parisc/linux/Documentation/parisc/unwritten,v
retrieving revision 1.7
diff -u -p -r1.7 unwritten
--- unwritten	2001/10/09 05:23:19	1.7
+++ unwritten	2001/10/09 19:22:25
@@ -1,59 +1,16 @@
-Hi all,
-Notes from reviewing Documentation/parisc/unwritten.
-In summary, it looks like unwritten file can be deleted.
-
-I'll take care of things marked delete unless someone objects.
-
-Please give feedback on items marked "review?".
-It means I didn't know what to do but status quo didn't seem
-right to me either.
-
-grant
-
-
-sys_idle	./include/asm-parisc/unistd.h
-		obsolete - delete usage.
-
-reboot_setup()	arch/parisc/kernel/process.c
-		not used. delete function.
-
-machine_halt		BUG. NOP.  Should update LEDs/ChassisCode.
-machine_power_on	obsolete - delete it
-		arch/parisc/kernel/process.c
-
-exit_thread		NOP is ok.
-flush_thread		review?
-		arch/parisc/kernel/process.c.
-		Only needs to handle fpu stuff or perf monitors.
-		(several arches implement a "lazy fpu state"...interesting)
-
-strlen_user	include/asm-parisc/uaccess.h
-		#define strlen_user(str) lstrnlen_user(str, 0x7fffffffL)
-		review?
+csum_partial_copy
+csum_partial_copy_from_user
+		arch/parisc/lib/checksum.c
+		We want optimized asm for both of those.
+

 do_check_pgt_cache	arch/parisc/mm/init.c
 		NOP. this seems wrong.
 		all the other arches have (about) the same thing here.
 		sparc64 has some CONFIG_SMP in it.
 
-set_pte_phys	arch/parisc/mm/init.c
-		orphaned. delete it.
-
-check_bugs	include/asm-parisc/bugs.h
-		NOP. Check for CPU bugs or misconfigured kernel.
-		review?
-
-csum_partial_copy
-csum_partial_copy_from_user
-		arch/parisc/lib/checksum.c
-		We want optimized asm for both of those.
-
 sigaddset
 sigdelset	include/linux/signal.h
 		Only i386 and m68k define __HAVE_ARCH_SIG_BITOPS.
 		parisc ends up using "generic" code like most other arches.
 		Is this an issue?
-
-get_cycles	include/asm-parisc/timex.h
-		Defined as "mfctl(16)". Is this ok?
-		Only used in drivers/drm/ and kernel/sched.c.
Index: arch/parisc/kernel/process.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/process.c,v
retrieving revision 1.37
diff -u -p -r1.37 process.c
--- process.c	2001/06/30 23:47:53	1.37
+++ process.c	2001/10/09 19:22:25
@@ -74,9 +74,6 @@ void cpu_idle(void)
 	}
 }
 
-void __init reboot_setup(char *str, int *ints)
-{
-}
 
 #ifdef __LP64__
 #define COMMAND_GLOBAL  0xfffffffffffe0030UL
@@ -130,11 +127,12 @@ void machine_restart(char *cmd)
 
 void machine_halt(void)
 {
+	/*
+	** The LED/ChassisCodes are updated by the led_halt()
+	** function, called by the reboot notifier chain.
+	*/
 }
 
-void machine_power_on(void)
-{
-}
 
 /* This routine is called from sys_reboot to actually turn off the
  * machine */
@@ -171,6 +169,9 @@ void exit_thread(void)
 
 void flush_thread(void)
 {
+	/* Only needs to handle fpu stuff or perf monitors.
+	** REVISIT: several arches implement a "lazy fpu state".
+	*/
 	set_fs(USER_DS);
 }
 
Index: arch/parisc/mm/init.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/mm/init.c,v
retrieving revision 1.40
diff -u -p -r1.40 init.c
--- init.c	2001/10/07 01:15:02	1.40
+++ init.c	2001/10/09 19:22:25
@@ -467,9 +467,6 @@ void show_mem(void)
 	show_buffers();
 }
 
-void set_pte_phys (unsigned long vaddr, unsigned long phys)
-{
-}
 
 static void __init map_pages(unsigned long start_vaddr, unsigned long start_paddr, unsigned long size, pgprot_t pgprot)
 {
Index: include/asm-parisc/unistd.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/unistd.h,v
retrieving revision 1.22
diff -u -p -r1.22 unistd.h
--- unistd.h	2001/07/05 23:09:06	1.22
+++ unistd.h	2001/10/09 19:22:26
@@ -809,13 +809,8 @@ type name(type1 arg1, type2 arg2, type3 
     return K_INLINE_SYSCALL(name, 6, arg1, arg2, arg3, arg4, arg5, arg6);	\
 }
 
-#ifdef __KERNEL_SYSCALLS__
 
-static inline int idle(void)
-{
-	extern int sys_idle(void);
-	return sys_idle();
-}
+#ifdef __KERNEL_SYSCALLS__
 
 static inline int pause(void)
 {
@@ -859,6 +854,13 @@ static inline int dup(int fd)
 	return sys_dup(fd);
 }
 
+static inline int execve(char *filename, char * argv [],
+	char * envp[])
+{
+	extern int __execve(char *, char **, char **, struct task_struct *);
+	return __execve(filename, argv, envp, current);
+}
+
 static inline int open(const char *file, int flag, int mode)
 {
 	extern long sys_open(const char *, int, int);
@@ -891,15 +893,8 @@ static inline pid_t wait(int * wait_stat
 {
 	return sys_wait4(-1, wait_stat, 0, NULL);
 }

From - Thu Nov 08 21:19:45 2018
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From: =?iso-8859-1?Q?Markus_D=F6hr?= <doehrm@aubi.de>
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Subject: [parisc-linux] Newbie on PA: Trying to compile kernel
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Xref: news.gmane.org gmane.linux.ports.parisc:12542

I just installed 0.9.2 on a 712/60 and I'm happy linux'ing ;-)

However, when trying to compile a cvs checked-out kernel I'm always getting
ramdisk.bin not found. I searched the archives, found some notes on where to
find one but on the site specified there are no.

Here's my disk setup:

sda1  Boot   Primary   Linux/PA-RISC boot       24.68
sda2         Primary   Linux ext2             4096.19
sda3         Primary   Linux swap              172.74

I'm not sure if I even need one.

hppaubi:~# cat /etc/palo.conf
# obsolete with palo-0.94 # --bootloader=/boot/iplboot
--commandline=2/boot/vmlinux-2.4.0 root=/dev/sda2 HOME=/
--recoverykernel=/boot/vmlinux-2.4.0
--init-partitioned=/dev/sda

Can anyone please point me to the right direction?

Thanx a lot!


-- 
Markus Doehr            AUBI Baubschlaege GmbH
IT Admin/SAP R/3 Basis  Zum Grafenwald
fon: +49 6503 917 152   54411 Hermeskeil
fax: +49 6503 917 190   http://www.aubi.de 




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Xref: news.gmane.org gmane.linux.ports.parisc:12543

Hi Markus,
 
> I just installed 0.9.2 on a 712/60 and I'm happy linux'ing ;-)
Good to hear that! I hope you enjoy :)

> However, when trying to compile a cvs checked-out kernel I'm always getting
> ramdisk.bin not found. I searched the archives, found some notes on where to
> find one but on the site specified there are no.

First of all, a reminder about the CVS. You have all the infos about it
at 
 http://www.parisc-linux.org/tools/index.html#anoncvs

After, for the cross-compiling, you need to download the xc here
ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-latest.tgz

You untar the archive from the / and add the path in your $PATH
Something like that:
export PATH=/opt/palinux/bin:$PATH #for bash, of course

then you go in linux directory, you do make menuconfig with the good
choice.

then make dep vmlinux and you upload your kernel on the 712 via ftp.

Till you are not sure of your compiling talents, the good idea is to
copy the vmlinux file in /boot with a name
slightly different of the old one. like that you have in /boot
vmlinux-2.4.0 and vmlinux.2.4.0-new, for example.

At the boot time, you press escape to enter in BOOT_ADMIN and type boot
pri ipl and you modify the 0 entry to point
the good file! That's all.

If you want to know more, try 
http://mkhppa1.esiee.fr/parisc-linux-boot/parisc-linux-boot/index.html

Good luck, Thomas.
ESIEE Team




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Subject: [parisc-linux] Final version of Configure.help
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This is a multi-part message in MIME format.
--------------B1DF8C654DD6FAFEE25799A4
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Hi all,

	Here is the patch to update the help for make config. It is the result
of many advices given by a lot of people. 

Thank you, Thomas.

PS: Any comment is STILL possible :-)
--------------B1DF8C654DD6FAFEE25799A4
Content-Type: text/plain; charset=us-ascii;
 name="config.help.patch"
Content-Transfer-Encoding: 7bit
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diff -Nru linux/Documentation/Configure.help linux.new/Documentation/Configure.help
--- linux/Documentation/Configure.help	Fri Aug 17 08:09:10 2001
+++ linux.new/Documentation/Configure.help	Tue Oct  9 23:17:55 2001
@@ -18525,6 +18525,143 @@
 
   To use this option, you have to check that the "/proc file system
   support" (CONFIG_PROC_FS) is enabled, too.
+
+Processor family
+CONFIG_PA7100
+  This is the processor type of your CPU. This information is used for
+  optimizing purposes. In order to compile a kernel that can run on
+  all 32-bit PA-RISC processors, you can specify PA7000 here.  If you
+  have a 64-bit machine, you may need to select PA8x00 here and say
+  'y' to '64-bit kernel' below.
+
+  The kernel will not necessarily run on earlier architectures than
+  the one you have chosen, e.g. a PA7200 optimised kernel will run on
+  a PA8000 cpu, but not a PA7000.
+
+  If you don't know what type of CPU you have, you can refer to the
+  Hardware Database at http://hwdb.parisc-linux.org/
+
+64-bit kernel
+CONFIG_PARISC64
+  Selecting this option will build a 64-bit kernel.  Some 64-bit machines
+  require a 64-bit kernel (eg L2000, A500) while other machines don't
+  have 64-bit firmware (eg C360, J200), so you may need to enable 32-bit
+  PDC below if you select this option.  Note that 64-bit userspace is
+  not yet supported but having a 64-bit kernel can improve some memory
+  operations like load, operate and store. Some applications (eg graphics) 
+  might benefit from that depending on what they are doing.
+
+GSC/Gecko bus support
+CONFIG_GSC
+  This option gives to the kernel the capability to manage GSC buses 
+  of HP computers. More than that, if you have systems with GSC slots, 
+  LASI, EISA or Dino (GSCtoPCI) bridge, this option is also compulsory 
+  if you want it working.
+
+LASI I/O support
+CONFIG_GSC_LASI
+  LASI is one type of controller embedded in HP workstations and 
+  servers. It controls some I/O devices like PS2 keyboard and mouse, 
+  audio or serial interface. The best advice is to keep it in your 
+  configuration, if you are not sure about that point.
+
+WAX support
+CONFIG_GSC_WAX
+  WAX is an EISA bus converter for PA-RISC systems. It can be found in
+  older systems like B/C/D/R-class machines. This option enables this 
+  converter. Note that it is under heavy development. Thus, it may not 
+  be working.
+
+GSCtoPCI/DINO PCI support
+CONFIG_GSC_DINO
+  By selecting this item, you add PCI support for Dino PCI Host Bus bridge.
+  PCI devices are sometimes embedded in GSC add-on cards (aka "card-mode 
+  Dino"). Note that only recent systems need it like B132L, C200. For more
+  information, go to http://hwdb.parisc-linux.org.
+
+LBA/Elroy PCI support
+CONFIG_PCI_LBA
+  Elroy is a bridge between Ropes bus and PCI on several machines. It can
+  be found on A500 and B/C/J/L/N-XXXX models. It allows the system to 
+  communicate with PCI cards. Thus, you should leave it on especially
+  if you have one of the listed HP machines. By default, say Y.
+
+SuperIO support
+CONFIG_SUPERIO
+  SuperIO is a chip that integrates a good part of I/O for the newest 
+  B/C/J-XXXX workstations. Serial, USB, IDE and Floppy are built in that
+  chip. That's why you must select it, if your box is corresponding to
+  those series. Please note that only the seriel support is working
+  at the moment.
+
+Chassis LCD and LED support
+CONFIG_CHASSIS_LCD_LED
+  HP boxes have LED or LCD indicator on the front in order to show some 
+  basic information like status for example. With this enabled, you can
+  have this help also available.
+
+Kernel support for SOM binaries
+CONFIG_BINFMT_SOM
+  SOM (Spectrum Object Model) is a format for libraries and executables 
+  used by HP. Saying Y here will enable your kernel to run SOM binaries.
+  As a result, you could run HP-UX executables. This capability is still
+  in development. Then, you use this functionality with no warranty!
+
+LASI/ASP builtin parallel-port
+CONFIG_PARPORT_GSC
+  If you have a LASI or ASP controller in your HP box and you want to use 
+  the parallel port, a good idea will be to keep this item in your
+  configuration.
+
+HP Lasi SCSI support
+CONFIG_SCSI_LASI700
+  If you have an old HP system like a 712, you should keep this on.
+  This will enable your SCSI controller and give you access to 
+  SCSI devices. For quite recent computers, you may be able to turn 
+  this off. 
+
+Lasi ethernet
+CONFIG_LASI_82596
+  This option adds the driver for one of most used network chips 
+  integrated in LASI chip. It is also known as Apricot driver. It is 
+  based on an Intel 82596 chip. If you do not know what is your 
+  hardware, it is strongly recommended to keep is on.
+
+Support for Lasi/Dino PS2 port
+CONFIG_GSC_PS2
+  The PS2 connector of the HP boxes looks like a standard PC connector.
+  If you want to use the PS2 keyboard and mouse, you must keep this on.
+  Anyway, some HP workstations and servers have this kind of interfaces
+  but not the ports you can plug in your devices. Thus, the best thing
+  to do anyway is to let this choice turned on.
+
+serial port on GSC support
+CONFIG_SERIAL_GSC
+  For most of the HP servers and for some workstations that do not have 
+  its video card supported yet, you will need to get the console output
+  via the serial port. As a result, you could interact with the box via
+  a VT or a serial cable link to another computer.
+
+STI console
+CONFIG_STI_CONSOLE
+  The Standard Text Interface could correspond to the VGA support for PC.
+  HP developped STI as a mechanism between CPU and graphics devices. 
+  Thus, if you want your console on your screen like any other PC linux
+  does, leave this option on.
+  If you do not have any success with your console output, we advice you
+  to check if you have checked the STI frame buffer option, aka 
+  CONFIG_FB_STI, in your configuration. Some models are happy when the 
+  two of them are enabled and some others prefer to have only this one 
+  only.
+  Anyway, if you failed to have the screen output, you can switch to the 
+  serial console output.
+
+PA Harmony audio driver
+CONFIG_SOUND_HARMONY
+  This option enables the audio part of the LASI controller. Since it is 
+  standard to all the boxes, this option should be set for any 
+  workstation except the newest ones. Servers do not really need audio. 
+  Then, you can unset it.
 
 #
 # A couple of things I keep forgetting:

--------------B1DF8C654DD6FAFEE25799A4--





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Subject: RE: [parisc-linux] Newbie on PA: Trying to compile kernel
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Thanx for you quick answer!

> First of all, a reminder about the CVS. You have all the 
> infos about it
> at 
>  http://www.parisc-linux.org/tools/index.html#anoncvs

I have :-)

> After, for the cross-compiling, you need to download the xc here
> ftp://puffin.external.hp.com/pub/parisc/binaries/LinuxX86/xc-l
atest.tgz

No, I'd like to do a native linux-kernel-on-linux compile.

I'm compiling kernels since 1.9.X (don't remember exactly) on INTEL and
Sparc, but never did on parisc. So I did the following:

hppaubi:/usr/src# export CVSROOT=`cat linux/CVS/Root `

hppaubi:/usr/src# echo $CVSROOT
:pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc

hppaubi:/usr/src# cvs -z5 co linux palo

The documents tell me to use either NFS or a RAMDISK in palo/Makefile and
_here's_ the problem (or the documents are outdated). I'll try the manual
approach and see what'll happen.


PS-OT: I wonder if SAP will port their application server to parisc/Linux...

-- 
Markus Doehr            AUBI Baubschlaege GmbH
IT Admin/SAP R/3 Basis  Zum Grafenwald
fon: +49 6503 917 152   54411 Hermeskeil
fax: +49 6503 917 190   http://www.aubi.de 




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Subject: Re: [parisc-linux] Newbie on PA: Trying to compile kernel
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Hi again,
> 
> No, I'd like to do a native linux-kernel-on-linux compile.
Damn it, I did well but it was the stuff for you. I am sure it will help
some one else :-)

> I'm compiling kernels since 1.9.X (don't remember exactly) on INTEL and
> Sparc, but never did on parisc. So I did the following:
I hope you have time. Compiling with 712 is fun but long :(

> The documents tell me to use either NFS or a RAMDISK in palo/Makefile and
> _here's_ the problem (or the documents are outdated). I'll try the manual
> approach and see what'll happen.
These documents were written at a time when HDD were not so well
supported.
If you just want to update your kernel, you just do 
apt-get update
apt-get upgrade # in order to get the last gcc version

after that, you follow what I said about make menuconfig...

I tested this way of producing kernel a long time ago. I am sure it will
be ok.

FYI, the ramdisk or NFSroot is needed if you do a make palo but you do
only make vmlinux!

> PS-OT: I wonder if SAP will port their application server to parisc/Linux...
I really do not know. Perhaps, Helge Deller will know :)

Good Luck anyway, Thomas.
ESIEE Team




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Subject: Re: [parisc-linux] Newbie on PA: Trying to compile kernel
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> > PS-OT: I wonder if SAP will port their application server to parisc/Linux...
> I really do not know. Perhaps, Helge Deller will know :)


I would imagine, only until there is a real market demand for palinux, and if large distros
such as SuSE adopt palinux.  ... and of course when palinux becomes stable.




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Subject: [parisc-linux] EISA support
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Anyone want to review a patch that makes EISA work?  I've only
tested it on a 715/75 with a Mongoose chip; but Wax is
supposed to be programmatically identical.  The patch is
18k, so rather than post it to the list, it's available from
ftp://puffin.external.hp.com/pub/parisc/src/eisa.diff

>From my boot log:

hp100: eth0: Shasta Chip detected. (This is a pre 802.12 chip)
hp100_probe: eth0: card at port 0x1c38 isn't known (id = 0x9019f022)

I seem to have chosen a not-quite-supported EISA card to test with.
The ID is plausible, so I don't think it's a byteswapping issue or
anything.

Here's a miniature Changelog:

 * I wrote a new eisa.c to replace the old wax_eisa.c.
 * To support it, I redid some of the config.in bits, which turned out
   to be a little more substantial once I read the docs.
 * I decided that to support old drivers, EISA port numbers should be
   between 0-0xffff, so I reserved bus number 0 for EISA.  This involved
   messing with inb/outb in pci.c.
 * While I was at it, I merged in support for PCI-less compiles (adding
   potential EISA-only configurations as an option).
 * Then I noticed the `next' pointer in struct pci_hba_data was now
   redundant, so I removed that, requiring minor changes to lba_pci.c
 * It might make sense for someone to compile a kernel with Dino, but without
   Lasi, so I made that work (not tested).
 * Then I tried to compile hp100.c, and needed to add the isa_* functions.
   Bah.

-- 
Revolutions do not require corporate support.




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> Yes, I did. Unfortunately I mentioned inventory.c, but originally meant 
> firmware.c in my previous mail.

looks like there was another small fix needed for firmware.c. Please try
the latest one. It now works for me for both 64-bit and 32-bit kernels.

randolph
-- 
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  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] HPMC when doing sync on c3k (32 bit kernel)
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I noticed that when i do a manual 'sync' on my c3000 running a 32-bit
kernel, I get a HPMC:


High Priority Machine Check (HPMC): Code=1 regs=1029c080 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111110100001100
r0-3     00000000 102a9010 1010e228 000000ff
r4-7     00000000 00000000 102ad010 10355074
r8-11    10355010 10354810 0004000e 102d4730
r12-15   10349810 10349010 103495dc 102ad010
r16-19   1032c580 f000017c f0000174 0000000e
r20-23   1036f140 000003fd 1010e20c 00000000
r24-27   000003fd fee003fd fee003fd 10292010
r28-31   00000000 00000205 1032cb00 1010cc2c
sr0-3    00000000 0000027c 00000000 00000009
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10207568 1020756c
 IIR: 0f40001c    ISR: a607fffb  IOR: 802003fd
 CPU:        0   CR30: 1032c000 CR31: 10330000
 ORIG_R28: 00000000

"pim hpmc" says:
A Data I/O Fetch Timeout occurred while CPU 0 was
requesting information from a device at the path 10/0/14/1/1 (built-in
PCI device)

apparently it died in _gsc_readb.

With a 64-bit kernel it works ok.

Anyone else seeing this/know what's going on?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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To: Thomas Marteau <marteaut@esiee.fr>
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Thomas Marteau wrote:
> 	Here is the patch to update the help for make config. It is the result
> of many advices given by a lot of people. 

thomas,
overall, it looks pretty good...thanks for pulling this together!

> PS: Any comment is STILL possible :-)

ok :^)

In general, I'd rather not see comments in this document about
what options are or are not working. That's changing still and we don't
feed stuff back upstream very often.  Better to point folks to
a web page(s) (perhaps both www.parisc-linux.org and esiee pages)
for current status.

I'd also like to note that most options which enable HW support
are safe to enable even if the platform doesn't have that HW.
The goal is to be able to enable everything and have the kernel
just DTRT at boot time. In short, I'd like to see something like
"Safe to say 'y' if in doubt" on most of the "new" options.

> +GSCtoPCI/DINO PCI support
> +CONFIG_GSC_DINO
> +  By selecting this item, you add PCI support for Dino PCI Host Bus bridge.
> +  PCI devices are sometimes embedded in GSC add-on cards (aka "card-mode 
> +  Dino"). Note that only recent systems need it like B132L, C200. For more
> +  information, go to http://hwdb.parisc-linux.org.

"EISA Form Factor" Card-mode dino can be found in anything as old as 715's.
"3x5 Form Factor" GSC cards fit (and should work) in all K-class.

Anyway, it's safe to enable.

> +LBA/Elroy PCI support
> +CONFIG_PCI_LBA
> +  Elroy is a bridge between Ropes bus and PCI on several machines. It can
> +  be found on A500 and B/C/J/L/N-XXXX models.

Also found in A400 and Superdome.
Might be simpler to say "newer workstations and servers which have 4X-PCI".


>   ...It allows the system to 
> +  communicate with PCI cards. Thus, you should leave it on especially
> +  if you have one of the listed HP machines. By default, say Y.
> +
> +SuperIO support
> +CONFIG_SUPERIO
> +  SuperIO is a chip that integrates a good part of I/O for the newest 
> +  B/C/J-XXXX workstations. Serial, USB, IDE and Floppy are built in that

*controllers* - not the devices are built-in.

> +  chip. That's why you must select it, if your box is corresponding to
> +  those series. Please note that only the seriel support is working
> +  at the moment.

typo: serial

thanks again!
grant




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Randolph Chung wrote:
> looks like there was another small fix needed for firmware.c. Please try
> the latest one. It now works for me for both 64-bit and 32-bit kernels.

works for me :^)

grant




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From: Sonny Cook <sonny@aspersion.org>
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Subject: Re: [parisc-linux] kernel 2.5.9-pa24 won't boot 735/125
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Wooohooo.
I got it to work.  Well, not quite.  A retired b132l showed up on my
doorstep last night and rejuvinated my somewhat flagging interest in
getting hp workstations to run linux.  I promply hooked it up and tried it
out.  It did the same thing my 735 did.  Argggh.

So, now I'm up to 2.4.90-pa45 kernel.  The kernel is booting and the
machine will let me log on if I pass the kernel 'init=/bin/sh'.  I then
locks up during various operations.  Starting sysklogd and klogd in rc2.d,
but also this part of bootmisc.sh would lock up in rcS.d:

if [ ! -c
/dev/.devfsd ] && [ -c /dev/ttyp0 ]
then
        chmod 666 /dev/tty[p-za-e][0-9a-f]
        chown root:tty /dev/tty[p-za-e][0-9a-f]
fi

The solution for me was to get the init scripts in rcS.d to run, set up
networking and then 'apt-get upgrade' the system.  After that, all of the
init scripts run without a hitch and the system boots into runlevel 2
without a problem.  I am assuming that this solution will work for the
735/125 as well.  I'll noow in a little while, as I am mirroring the
working system onto another disk.

Thanks for all of your help.
Sonny


On Tue, 25 Sep 2001, Richard Hirst wrote:

> On Mon, Sep 24, 2001 at 10:09:09PM -0600, Sonny Cook wrote:
> > Okay, I've written off cross compiling as a loss.  I did get a 715/80
> > working with no obvious problems.  I've compiled a kernel with the
> > EARLY_BOOTUP_DEBUG flag defined.  So, I boot my 735/125 with that kernel
> > and get much more interesting information.  Thusly:
> ...
> > Setting the System Clock using the Hardware Clock as reference...
> > Cannot access the Hardware Clock via any known method.
> > Use the --debug option to see the details of our search for an access
> > method.
> > System Clock set. Local time: Tue Sep 25 20:35:45 MDT 2001
> >
> > Cleaning: /tmp /var/lock /var/run.
> >
> > At this point the system refuses to give any more output.  I can ping the
> > box, but there are no services running (sshd is supposed to start up.)  I
> > also assume that the root file system (/dev/sdb2) is indeed mounted,
> > because if I just cold reboot, it has to fsck the filesystem next time.
> >
> > The kernel is compiled without STI or framebuffer support.  It also has
> > all of the non experimental iptables options compiled in.
>
> To eliminate the possibility of a kernel config problem, I would
> make distclean; cp arch/parisc/debian-configs/32 .config; make oldconfig
> make dep; make
>
> The other thing you can try is booting with init=/bin/sh and try
> starting things up by hand to see what hangs it.  Or maybe remove
> non-essentail services, then if it boots ok try starting them one
> by one.
>
> Richard
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
>





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On Wednesday 10 October 2001 01:24 am, Matthew Wilcox wrote:
> Anyone want to review a patch that makes EISA work?  
>
>  * I decided that to support old drivers, EISA port numbers should be
>    between 0-0xffff, so I reserved bus number 0 for EISA.  This involved
>    messing with inb/outb in pci.c.
>
Willy,

A comment, for your consideration:

Old ISA boards only do a 10-bit decode and it is a frequent occurance
that old drivers don't "clean up" the unused high 6 bits.

Would it be reasonable to mask port numbers to 10 bits for ISA in the
inb/outb routines?

Mike




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Subject: [parisc-linux] 735/125 eisa nic
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I have a 735/125 and an EISA i82596 based nic.  Does the parisc-linux
kernel support this combination at the moment?  As far as I can tell from
the list archives, the answer is no, but that wasn't for this specific
combination, so I would just like to be sure.
Thanks,
Sonny





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From: Sonny Cook <sonny@aspersion.org>
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Subject: [parisc-linux] b132l pci question
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I just got a b132l (woohoo).  How well is the pci bus supported.  There
seem to be some voltage caveats with 5v and 3.3v, but I am not clear on
the issues.  Are there cards which are know to work, specifically, I am
interested in wunning extra nics in it.
Thanks,
Sonny





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On Wednesday 10 October 2001 01:33, Markus Dhr wrote:
> > > PS-OT: I wonder if SAP will port their application server to
> > > parisc/Linux...
> >
On Tuesday 09 October 2001 23:55, Thomas Marteau wrote:
> > I really do not know. Perhaps, Helge Deller will know :)
>
On Wednesday 10 October 2001 01:33, Randall Craig wrote:
> I would imagine, only until there is a real market demand for palinux, and
> if large distros such as SuSE adopt palinux.  ... and of course when
> palinux becomes stable.

Hi Markus, Thomas and Randall,

That's funny. Right yesterday I got a B180L for my desk and a B2000 in one of the 
server-rooms. Believe me, I'll try to build the R/3 kernel for PA/Linux, but 
this is primarily my private interest and is not related to my job or my daily tasks here.

I asked already at a higher level how SAP's interest for SAP on PA/Linux is.
But as Randall said, SAP wouldn't even think of it, if not one of the big vendors
(SuSE, RedHat, anyone else or even HP itself) would take over customer-support 
for R/3 on PA/Linux.
Furthermore I personally also don't think that SAP on PA/Linux will ever 
happen, mainly because
a) AFAIK HP will or has already stopped their PARISC product line - which is a 
knock-out argument against too much further development on that platform, and
b) SAP will only support one Unix-Platform per processor-architecture. This
would mean that HP would have to drop R/3 on HP/UX - in favour of  R/3 on PA/Linux -
which I think would never happen.

Greetings,
Helge
-- 
_______________________________________________________________________

THE BEST RUN E-BUSINESSES RUN SAP
_______________________________________________________________________

Helge Deller
SAP AG Walldorf/Baden, Germany
LinuxLab & Unixplatforms

SAP LinuxLab support address: linux@sap.com




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On Wed, Oct 10, 2001 at 03:32:09AM -0500, Michael S. Zick wrote:
> 
> Old ISA boards only do a 10-bit decode and it is a frequent occurance
> that old drivers don't "clean up" the unused high 6 bits.
> 
> Would it be reasonable to mask port numbers to 10 bits for ISA in the
> inb/outb routines?

No.  Some old ISA boards do decode the top bits, and actually use them.





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Subject: Re: [parisc-linux] EISA support
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On Wed, Oct 10, 2001 at 07:24:41AM +0100, Matthew Wilcox wrote:
> 
> Anyone want to review a patch that makes EISA work?  I've only

Looks reasonable to me, but doesn't make any difference so far as
EISA 53c710 cards in my 715/75 are concerned.  There seem to be two
basic problems...

Interrupts - I can see from the 53c710 registers that it is generating
an interrupt, but it doesn't seem to be enabled through to the processor.
I didn't know which irq to request, so I guessed it might be one of the
ASP ones (which I think cover 64 to 95), and did a request_irq for all
32 of them.  Didn't help.

Bus mastering - the 53c710 is attempting to fetch and execute scripts
from memory, but from what I can tell, it is picking up invalid data.
Basically the chips script pointer has moved on one instruction and it
is trying to generate an Illegal Instruction Detected interrupt, and
the dsps register, which I think is used in script fetching, contains
0xffffffff.

atm I am using eisa_in32() to check the card signature, but then
using readb and friends on (EISA_BASE + port) to access the card.
The driver only supports memory mapped chip access on parisc, and
as it is using memory mapped access for the on-board 53c700, it
makes sense to do that for EISA cards as well.  I identify the
card from a 32 bit signature at base+0xc80, which is apparently
correct on Compaq cards, at least - dunno if that is standard.
I'm pretty confident that I am accessing the chips registers ok.

I had to hack the scsi driver a bit to change the parity generation/
checking options, otherwise the chip just sat there saying its external
abort signal was true.  The chip supports the idea of passing parity
through from scsi bus to host bus, but I've no idea what features
might be implemented on my HP cards.  I tried a Compaq card as well,
which behaved the same except (a) I didn't need to do the parity hack,
and (b) it wasn't reported in the devices list on kernel boot.  With
an HP card in, it is listed as 'unknown device at 0xfc001000'.

Although the new code reports the EISA adaptor as Mongoose, that
address has already been reported as "Scorpio Sr. EISA BA".

Richard


              (c) Copyright Hewlett-Packard Company, 1991, 1992, 1993           
Portions of this code are (c) Copyright Samsung Electronics Co., Ltd, 91, 92    
                                                                                
ROM: 9000/715/75                                                                
                                                                                
PDC ROM rev. 1.1                                                                
IODC ROM rev. 1.0                                                               
96 MB of memory have been configured.                                           
                                                                                
Warning: one or more EISA cards could not be configured.                        
Autoselect and search will ignore unconfigured cards.                           
                                                                                
                                                                                
Searching for Potential Boot Devices.                                           
To terminate search, press and hold the ESCAPE key.                             
                                                                                
Device Selection      Device Path              Device Type                      
----------------------------------------------------------------------------    
                                                                                
P0                    scsi.6.0                 MICROP  2112                     
P1                    scsi.5.0                 SEAGATE ST32430N                 
P2                    scsi.3.0                 HP      HP35470A                 
P3                    lan.0002b3-218a14.0.0    moose                            
                                                                                
                                                                                
                                                                                
b)    Boot from specified device                                                
s)    Search for bootable devices                                               
a)    Enter Boot Administration mode                                            
x)    Exit and continue boot sequence                                           
?)    Help                                                                      
                                                                                
Select from menu: b p3                                                          
                                                                                
Trying lan.0002b3-218a14.0.0                                                    
Boot path initialized.                                                          
Attempting to load IPL.                                                         
                                                                                
                                                                                
Hard booted.                                                                    
palo ipl 0.94 richard@beast Wed Oct 10 12:18:57 BST 2001                        
0/vmlinux32 3120379 bytes @ 0x7800                                              
                                                                                
Command line: 'HOME=/ TERM=linux root=/dev/sda1  console=ttyS0'                 
                                                                                
Kernel: partition 0 file /vmlinux                                               
Warning: kernel name doesn't end with 32 or 64... Guessing 32                   
ELF32 executable                                                                
Entry 00100000 first 00100000 n 6                                               
Segment 0 load 00100000 size 1611616 mediaptr 0x1000                            
Segment 1 load 0028a000 size 287736 mediaptr 0x18b000                           
Segment 2 load 002d4000 size 377904 mediaptr 0x1d2000                           
Segment 3 load 00334000 size 8192 mediaptr 0x22f000                             
Segment 4 load 00338000 size 32768 mediaptr 0x231000                            
Segment 5 load 00376770 size 82896 mediaptr 0x239770                            
branching to kernel entry point 0x00100000                                      
Linux version 2.4.9-pa45 (richard@beast) (gcc version 3.0.2 20010829 (prerelease
)) #16 Wed Oct 10 14:13:11 BST 2001                                             
FP[0] enabled: Rev 1 Model 9                                                    
The 32-bit Kernel has started...                                                
Determining PDC firmware type: Snake.                                           
model   00003160 00000481 00000000 00000000 782de278 ffffffff 00000004 0000000a 
0000000a                                                                        
vers    00000013                                                                
CPUID   vers 0 rev 0                                                            
model   9000/715                                                                
Total Memory: 96 Mb                                                             
pagetable_init                                                                  
On node 0 totalpages: 24576                                                     
zone(0): 24576 pages.                                                           
zone(1): 0 pages.                                                               
zone(2): 0 pages.                                                               
Kernel command line: HOME=/ TERM=linux root=/dev/sda1  console=ttyS0            
Error reading tod clock                                                         
Console: colour dummy device 160x64                                             
Calibrating delay loop... 74.75 BogoMIPS                                        
Memory: 93980k available                                                        
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)                 
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)                    
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)                    
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)                   
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)                   
Searching for devices...                                                        
Found devices:                                                                  
1. Stinger Optional Graphics (10) at 0xf4000000, versions 0x6, 0x0, 0x77        
2. Scorpio Sr. Core BA (11) at 0xf082f000, versions 0x19, 0x0, 0x70             
3. Scorpio Sr. Core SCSI (10) at 0xf0825000, versions 0x19, 0x0, 0x71           
4. Scorpio Sr. Core LAN (802.3) (10) at 0xf0826000, versions 0x19, 0x0, 0x72    
5. Scorpio Sr. Core HIL (10) at 0xf0821000, versions 0x19, 0x0, 0x73            
6. Scorpio Sr. Core RS-232 (10) at 0xf0823000, versions 0x19, 0x0, 0x75         
7. Scorpio Sr. Core RS-232 (10) at 0xf0822000, versions 0x19, 0x0, 0x75         
8. Scorpio Sr. Core Centronics (10) at 0xf0824000, versions 0x19, 0x0, 0x74     
9. Scorpio Sr. Audio (10) at 0xf1000000, versions 0x19, 0x0, 0x7b               
10. Scorpio Sr. EISA BA (11) at 0xfc000000, versions 0x19, 0x0, 0x76            
11. unknown device (10) at 0xfc001000, versions 0x0, 0x0, 0xfff                 
12. Scorpio Sr.(715/75) (0) at 0xfffbe000, versions 0x316, 0x0, 0x4             
13. Scorpio Sr. (1) at 0xfffbf000, versions 0x27, 0x0, 0x9                      
That's a total of 13 devices.                                                   
CPU(s): 1 x PA7100 (PCX-T) at 75.000000 MHz                                     
Mongoose EISA Adapter found at 0xfc000000                                       
Asp version 1 at 0xf0800000 found.                                              
LED (ASP-style) display at f0800020 registered                                  
POSIX conformance testing by UNIFIX                                             
Linux NET4.0 for Linux 2.4                                                      
Based upon Swansea University Computer Society NET3.039                         
Starting kswapd v1.8                                                            
parport_init_chip: enhanced parport-modes not supported.                        
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]                                
STI byte mode ROM at f4000000, hpa=f4000000                                     
STI byte mode ROM, id 27f12392-40a00499, conforms to spec rev. 8.02             
STI device: HPA1991AC19                                                         
pty: 256 Unix98 ptys configured                                                 
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI en
abled                                                                           
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A                               
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A                               
Found HIL at 0xf0821000, IRQ 94                                                 
HIL: no keyboard present.                                                       
Warning : device (10, 0x19, 0x0, 0x73) NOT claimed by HIL                       
lp0: using parport0 (interrupt-driven).                                         
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)            
block: 128 slots per queue, batch=16                                            
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize           
loop: loaded (max 8 devices)                                                    
Found i82596 at 0xf0826000, IRQ 87                                              
82596.c: MAC of HP700 LAN read from EEPROM                                      
eth0: Couldn't get consistent shared memory                                     
eth0: 82596 at 0xf0826000, 08 00 09 87 E4 8F IRQ 87.                            
82596.c $Revision: 1.23 $                                                       
SCSI subsystem driver Revision: 1.00                                            





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On Wednesday 10 October 2001 06:01 am, Alan Modra wrote:
> >
> > Would it be reasonable to mask port numbers to 10 bits for ISA in the
> > inb/outb routines?
>
> No.  Some old ISA boards do decode the top bits, and actually use them.

Alan,

Correct - 
16-bit ISA cards NEARLY ALWAYS decode the top bits; but 8-bit
cards don't (can't, the wires aren't on that part of the socket).

My comment was based on the i386 branch, which does have such a
config option for the (very) rare installation that needs to support such
a board.

I was only wondering if this would be a REASONABLE place in the 
code to put it.

Mike




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Subject: Re: [parisc-linux] EISA support
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On Wed, Oct 10, 2001 at 01:45:26PM +0100, Richard Hirst wrote:
> Looks reasonable to me, but doesn't make any difference so far as
> EISA 53c710 cards in my 715/75 are concerned.  There seem to be two
> basic problems...

OK.  I'll commit this basic support then since it works better than
the current support.

> Interrupts - I can see from the 53c710 registers that it is generating
> an interrupt, but it doesn't seem to be enabled through to the processor.
> I didn't know which irq to request, so I guessed it might be one of the
> ASP ones (which I think cover 64 to 95), and did a request_irq for all
> 32 of them.  Didn't help.

I haven't written that code yet.  Basically, I need to allocate a new IRQ
region for EISA interrupts, then on receipt of Asp irq 21 read the EISA
interrupt number from 0xfc01f000.  It seems there may be some extra gunk
needed to handle the TI chipset, but I'll have a go at getting interrupts
to work later today.

Alternatively, we could hack the 53c710 script to generate CPU interrupts
directly :-)  Let me just document how that would work (Grant, please
correct me if I misunderstood):

Instead of generating a PCI/EISA interrupt, generate a write of an
allocated value to the CPU's EIRR (External Interrupt register).
This way, the CPU jumps straight to the scsi chip's interrupt handler
rather than Asp's, which then has to decode which Asp IRQ it was;
then jump to the EISA interrupt handler, decode which EISA IRQ it was,
finally calling the scsi interrupt handler.

We might need to work out some other infrastructure to handle this,
but it's something we should look into at some point.  Clearly I need
to get EISA interrupts working anyway :-)

> Bus mastering - the 53c710 is attempting to fetch and execute scripts
> from memory, but from what I can tell, it is picking up invalid data.
> Basically the chips script pointer has moved on one instruction and it
> is trying to generate an Illegal Instruction Detected interrupt, and
> the dsps register, which I think is used in script fetching, contains
> 0xffffffff.

OK, I haven't figured out how to do this yet.  In order for a device on
the EISA bus to access host ram, I have to program the IO Map in the
adapter.  I'm not sure Linux has an interface I can slot into for this.
Maybe the pci_alloc interface is the right one...

> atm I am using eisa_in32() to check the card signature, but then
> using readb and friends on (EISA_BASE + port) to access the card.
> The driver only supports memory mapped chip access on parisc, and
> as it is using memory mapped access for the on-board 53c700, it
> makes sense to do that for EISA cards as well.  I identify the
> card from a 32 bit signature at base+0xc80, which is apparently
> correct on Compaq cards, at least - dunno if that is standard.
> I'm pretty confident that I am accessing the chips registers ok.

>From the hp100 driver, and some of the other bits I've read, you should
probably be probing for the card along thse lines:

	for (ioaddr = 0x1c38; ioaddr < 0x10000; ioaddr += 0x400) {
		if (check_region(ioaddr, REGION_SIZE))
			continue;
		if (inw(ioaddr) == SIGNATURE)
			return 0;
	}

To access the card in memory mapped mode, just ioremap it and use
readb/writeb as usual.  This ought to work; I've written the code for
it :-).  I'm not sure how you discover the base address with EISA though
-- is there a register which holds this on the 53c7x0?

> Although the new code reports the EISA adaptor as Mongoose, that
> address has already been reported as "Scorpio Sr. EISA BA".

Right... just like Mirage Core BA gets reported as Lasi.  The Asp
driver, for some reason, trims 0xf082f000 down to 0xf0800000.

> 2. Scorpio Sr. Core BA (11) at 0xf082f000, versions 0x19, 0x0, 0x70
> 10. Scorpio Sr. EISA BA (11) at 0xfc000000, versions 0x19, 0x0, 0x76

> Mongoose EISA Adapter found at 0xfc000000
> Asp version 1 at 0xf0800000 found.

-- 
Revolutions do not require corporate support.




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To: "Michael S . Zick" <mszick@pflash.com>
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On Wed, Oct 10, 2001 at 03:32:09AM -0500, Michael S . Zick wrote:
> Old ISA boards only do a 10-bit decode and it is a frequent occurance
> that old drivers don't "clean up" the unused high 6 bits.
> 
> Would it be reasonable to mask port numbers to 10 bits for ISA in the
> inb/outb routines?

Actually, I currently do this, but I'm not sure I should be.  The EISA
adapter has to do different things for ISA port IO and EISA port IO.
I'm not sure which IO ports correspond the ISA and which to EISA.
Guessing based on the hp100 driver, I decided that ports less than 0x400
were ISA and the rest were EISA.  Anyone want to explain port numbers
to me properly?  The description in the Mongoose ERS assumes you know
a fair bit about EISA, and I don't.

Here's the current code for this:

+static inline unsigned long eisa_permute(u16 port)
+{
+       if (port >= 0x400) {
+               return 0xfc000000 | port;
+       } else {
+               return 0xfc000000 | ((port & 0x3f8) << 9) | (port & 7);
+       }
+}

The ERS adds in (port & 0xfc00) >> 6, but the test ensures those bits
are clear, so there's no point.

-- 
Revolutions do not require corporate support.




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On Wed, Oct 10, 2001 at 03:48:10PM +0100, Matthew Wilcox wrote:
> I'm not sure which IO ports correspond the ISA and which to EISA.
> Guessing based on the hp100 driver, I decided that ports less than 0x400
> were ISA and the rest were EISA.  Anyone want to explain port numbers
> to me properly?  The description in the Mongoose ERS assumes you know
> a fair bit about EISA, and I don't.

Ah, I found an appendix :-)

EISA cards have a slot number which determines the upper nybble of their
IO port numbers.  Then within that 0xfff of space, they use 0-ff, 400-4ff,
800-8ff, c00-cff.  The rest are ISA ports (or aliases of ISA ports).

So here's the function to use:

static inline unsigned long eisa_permute(u16 port)
{
	if (port & 0x0300) {
		return 0xfc000000 | ((port & 0xfc00) >> 6) | ((port & 0x3f8) << 9) | (port & 7);
	} else {
		return 0xfc000000 | port;
	}
}

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] 735/125 eisa nic
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On Wed, Oct 10, 2001 at 08:33:21AM +0000, Sonny Cook wrote:
> I have a 735/125 and an EISA i82596 based nic.  Does the parisc-linux
> kernel support this combination at the moment?  As far as I can tell from
> the list archives, the answer is no, but that wasn't for this specific
> combination, so I would just like to be sure.

If you read some of the messages on the list today, you'll notice I've
just got some of the necessary EISA support in place.  So the answer
is `No, not yet, but probably quite soon'.  I remember seeing some
intel-based nics in the EISA card box yesterday, so I may be able to
try out this particular card myself.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] puffin.external.hp.com,... unreachable through 
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On Wed, 3 Oct 2001, Matt Taggart wrote:

hi,

> It appears to be a routing problem which seems to affect mostly non-US domains.

well that's not a problem of domains but of prefixes/upstrems/routing/...
at least us internal quest traffic should also be affected ...

> I filed a support request on Monday. They're still trying to figure out what's
> going on. I'll send mail once it's resolved.

The prob still seems to exist from what I can tell from here :(
That's amazing that two great companies like kpn/quest and hp cannot
solve such an issue within one week ... at least they could have
removed the announcement from there so that the traffic will take
other routes (what would be far better than ending in nowhere)...

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/





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On Wednesday 10 October 2001 10:38 am, Matthew Wilcox wrote:
>
> Ah, I found an appendix :-)
>
> EISA cards have a slot number which determines the upper nybble of their
> IO port numbers.  Then within that 0xfff of space, they use 0-ff, 400-4ff,
> 800-8ff, c00-cff.  The rest are ISA ports (or aliases of ISA ports).
>
Willy,
Sounds like you have it handled already - that 400-4ff range (plus 000-3ff) 
is the very old, 8-bit, ISA i/o port range (on i386 cards).
I think you just saved my very old PROM burner from the scrap heap.

On a separate subject related to your EISA work...
For 8/16-bit ISA cards that do not report resource requirements (i/o,
mem, dma, irq) and for the EISA cards without a "known" ID - perhaps
let the driver accept command line option(s) and leave the details to
the user.  For the IRQ mappings, perhaps something like: xyz_irq=8:zz,
xyz_dma=4:yy, etc. (without the ":ww" just map somewhere handy.)

Mike




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] HPMC when doing sync on c3k (32 bit kernel)
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Randolph Chung wrote:
> I noticed that when i do a manual 'sync' on my c3000 running a 32-bit
> kernel, I get a HPMC:
...
> "pim hpmc" says:
> A Data I/O Fetch Timeout occurred while CPU 0 was
> requesting information from a device at the path 10/0/14/1/1 (built-in
> PCI device)

That's the SuckyIO serial port. Randolph and I exchanged notes offline
and concluded his prototype C3000 has PA8500 v2.0 CPU (and newer elroys
than mine). I can't reproduce the problem with a v2.3 chip.  I should be
able to upgrade his CPU to v2.3 and we'll see if the problem persists.
Lots of bugs in pre-2.3 chip revisions.
(BTW, does that answer your question Helge? :^/)

grant




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Subject: Re: [parisc-linux] b132l pci question
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Xref: news.gmane.org gmane.linux.ports.parisc:12568

Sonny Cook wrote:
> I just got a b132l (woohoo).  How well is the pci bus supported.

It works. I wrote the original code but don't maintain it now.
(hint-hint)

>   There
> seem to be some voltage caveats with 5v and 3.3v, but I am not clear on
> the issues.

Yeah. I believe dino is capable of running up to 66 Mhz PCI (2x-PCI)
even though it's not clear that was ever done because of trace lengths.
Bus speeds above 33Mhz require 3.3v signalling.

>   Are there cards which are know to work, specifically, I am
> interested in wunning extra nics in it.

Yes - Tulip 100BT and all Symbios SCSI wun just fine. :^)

General advice:
"Universal PCI" cards (cards which are keyed to fit both 3.3v and 5v slots)
in general should work if you find a driver. Otherwise look at the product
specs to determine which voltage slots your B132L supports. Oh and the slots
are keyed to prevent folks from installing incompatible cards in the slot.
So if you already have the cards and know a driver is available, just try
to install the card.

grant




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> Instead of generating a PCI/EISA interrupt, generate a write of an
> allocated value to the CPU's EIRR (External Interrupt register).

Correct. That's what txn_alloc_irq() is for.
That interface needs to change slightly if someone really wants to start
using it on a broad range of platforms and busses. FWIW, this could
work on any platform which a "local SAPIC" (ie IA64).

> This way, the CPU jumps straight to the scsi chip's interrupt handler
> rather than Asp's, which then has to decode which Asp IRQ it was;
> then jump to the EISA interrupt handler, decode which EISA IRQ it was,
> finally calling the scsi interrupt handler.

excalty - this also cuts out a bunch of IO space reads (and possibly writes).

> We might need to work out some other infrastructure to handle this,
> but it's something we should look into at some point.  Clearly I need
> to get EISA interrupts working anyway :-)

I think all the needed functions are in place already.

grant




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> >   Are there cards which are know to work, specifically, I am
> > interested in wunning extra nics in it.
>
> Yes - Tulip 100BT and all Symbios SCSI wun just fine. :^)

I've also got AMD Lance (pcnet32) and RTL8139 based NIC cards
to work fine too.

Helge




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Subject: Re: [parisc-linux] EISA support
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On Wed, Oct 10, 2001 at 03:28:07PM +0100, Matthew Wilcox wrote:
> I haven't written that code yet.  Basically, I need to allocate a new IRQ
> region for EISA interrupts, then on receipt of Asp irq 21 read the EISA
> interrupt number from 0xfc01f000.  It seems there may be some extra gunk
> needed to handle the TI chipset, but I'll have a go at getting interrupts
> to work later today.

Turns out it's unsufferably ugly to do this right now, due to Mongoose
being a _sibling_ of Asp, not a _child_.  So I've put a nasty patch at
ftp://puffin.external.hp.com/pub/parisc/src/eisa-irq.c which works enough
that it seems to claim the IRQs; but the hp100 driver just allocates
IRQ3 and doesn't allow any kind of fixup, so I haven't actually tested it.

I have a plan to allocate Mongoose's IRQ in a nicer way, but that will
have to wait until tomorrow.  What do you think the best way would be
to fix EISA card IRQs?  I have a couple of thoughts:

 * Introduce a new EISA_IRQ_BASE macro that most architectures
   define to 0.
 * Reserve IRQ region 0 for EISA

Any better ideas?

-- 
Revolutions do not require corporate support.




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Matthew Wilcox wrote:
> I have a plan to allocate Mongoose's IRQ in a nicer way, but that will
> have to wait until tomorrow.  What do you think the best way would be
> to fix EISA card IRQs?  I have a couple of thoughts:
> 
>  * Introduce a new EISA_IRQ_BASE macro that most architectures
>    define to 0.

I don't know what other archs do or how hard that would be to drive
into the other arches.

>  * Reserve IRQ region 0 for EISA

reserve IRQ region 0 for EISA.
It's reserved now to catch broken PCI drivers that treat the IRQ number
as a byte instead of an int. So for machines w/o EISA, it could
continue to remain reserved for that purpose.

grant




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Subject: [parisc-linux] EISA changes broke SuckyIO
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The recent changes (-pa46 or so) which I made to support EISA have
broken SuckyIO-based boxes -- everything from the B1000 to J7000.
This will get fixed tomorrow.

-- 
Revolutions do not require corporate support.




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On Wed, Oct 10, 2001 at 03:28:07PM +0100, Matthew Wilcox wrote:
> Alternatively, we could hack the 53c710 script to generate CPU interrupts
> directly :-)  Let me just document how that would work (Grant, please
> correct me if I misunderstood):
> 
> Instead of generating a PCI/EISA interrupt, generate a write of an
> allocated value to the CPU's EIRR (External Interrupt register).
> This way, the CPU jumps straight to the scsi chip's interrupt handler
> rather than Asp's, which then has to decode which Asp IRQ it was;
> then jump to the EISA interrupt handler, decode which EISA IRQ it was,
> finally calling the scsi interrupt handler.

If we make the scsi script do that, the scsi chip wont realise it
has generated an interrupt, so wont stop processing scripts.  The
driver expects th chip to be halted when the int handler is called.
If we had a driver specific to the 53c710 where the scsi script managed
queues of requests itself, there might be scope for emulating an
INTFLY instruction (which is found on newer chips) that way.  The
53c700 doesn't have the capability of writing memory locations from
script.

Richard





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From: Soete Joel <joel.soete@freebel.net>
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Subject: [parisc-linux] Re: LVM 1.0.1-rc4 on hppa
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I also try to work with gdb and efence but it does not seems to work:
I re-link LVM (with -O2) tools with libefence then launch gdb.
At gdb prompt I type in "set environment LD_PRELOAD=libefence.so.0.0"
then "run".
But the message of the load of efence does not appears?
And run failled on Segmentation fault without any diagnostic of efence.
I think it is not the right way to work: if in command line I do "export
LD_PRELOAD=libefence.so.0.0" then launch "mkdir toto" the message of
efence load appears well?

Does it exist some where some HOWTO explaining the actual way to use
efence?

Joel


joel.soete@freebel.net wrote:
> 
> Quoting joel.soete@freebel.net:
> 
> > Quoting Matthew Wilcox <willy@debian.org>:
> >
> > > On Mon, Oct 08, 2001 at 06:39:17PM +0200,
> > hgrothe@mathematik.tu-darmstadt.de
> > wrote:
> > > > I guess :-) that you compiled the lvm-tools with optimization. Since
> >
> > > > there seems to be a general problem with the lvm-tools and gcc3
> > (appears
> > > > also on other architectures (see lvm mailing list)) recompile the
> > > > lvm-tools without optimisation or "weak" optimisation (-O0).
> >
> > The all LVM-HOWTO test seems to works fine if change -O2 to -O0 into
> > make.tmpl.
> >
> > > -O0 is no optimisation, -O1 is weak optimisation and -O2 is most
> > > optimisations.  This is normally a bug in the code, not the
> > compiler...
> >
> > I thinks so too.
> > I will try now to recompile with -O2 and -ggdb to try to have a better
> > idea.
> 
> ddd (as well gdb) failed on message:
> 0x4015dc88 in mocount () from /lib/libc.so.6
> 
> into call lvm_dont_interrupt (0);
> 
> which is a "simple loop on s" calling 'signal(s,SIG_IGN)' if s is not SIGKILL.
> 
> What could be broken?
> 
> Thanks again for help,
>         joel
> 
> -------------------------------------------------
> This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)




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From: Jurij Smakov <jurij@lokmail.net>
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Subject: Re: [parisc-linux] a todo entry
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Hi!

Matthew Wilcox wrote:

> #define KERNEL_DS 0
> #define USER_DS mfsp(3)
> #define get_ds() (KERNEL_DS)
> #define get_fs() mfsp(2)
> #define set_fs(x) mtsp(x, 3)

I've been looking at it for the last two days and I still
cannot understand it :-). Why do You want set_fs to write to
sr3? If set_fs changes sr3, but we access memory in 
__get_user and __set_user using sr2, it is not going to work
(I think). By now I'm pretty convinced that set_fs should
operate on sr2 (which is supported by John's post). IMHO,
sr2 should behave like that (just a summary of what was said
before):

a) In userspace sr2 is always 0, so that everybody can make 
   their syscals.
b) sr2 is set to sr3 when we enter the kernel.
c) get_fs returns sr2 and set_fs sets sr2, so that we can
   always use sr2 as the space in __get_user/__set_user
d) When we return to userspace from the kernel, sr2 is
   set to 0 again.

While modification of uaccess.h to satisfy c) is more or less
trivial, real problem for me is b) and d). I'm not quite sure, 
where to look for these entries and returns? I would guess, 
entry.S is the right place, but obviously I didn't RTFM enough to
hack it yet.

Another thing which confuses me a lot is a way the exception
table is constructed in __get_kernel_asm/__get_user_asm:

"\t.section __ex_table,\"a\"\n"        \
"\t.dword\t1b\n"                       \
"\t.dword\t(2b-1b)+3\n"                \
"\t.previous"  

What is the function of this "+3" thing? If 2b and 1b are the
word-aligned addresses of the instructions (which, I think,
they are), this does not make much sense. When the instruction
at 1b fails, it will try to skip (2b-1b)+3 bytes, which is
7, if 1b and 2b refer to subsequent instructions. In other
places it is just (2b-1b), which is perfectly understandable. 
It would be great, if someone could explain it.

Best regards,

Jurij.






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Xref: news.gmane.org gmane.linux.ports.parisc:12577

On Mon, Oct 08, 2001 at 05:08:49PM +0200, joel.soete@freebel.net wrote:
> 
> I just co the last cvs of kernel 2.4.9-pa42 and everything seems to work find as 
> well as on model 712 as on model B180.
> 
> Then I try to have a look into LVM (last 1.0.1-rc4)on the B180:
> no error at compile time neither for kernel neither for tools (just warning: 
> pv_read_all_pv_of_vg.c:129: warning: deprecated use of label at end of compound 
> statement)
> 
> Then I try first to do a 'pvcreate /dev/sdb' which failed:
> vpcreate -- ERROR: "/etc/lvmtab" doesn't exist; please run vgscan
> 
> Also I excute 'vgscan':
> Segmentation fault.
>
lvm-1.0.1-rc4 (as well as lvm-1.0.1-rc2) works fine for me on various
2.4.9-paXX kernels including 2.4.9-pa42 (see below).

I guess :-) that you compiled the lvm-tools with optimization. Since 
there seems to be a general problem with the lvm-tools and gcc3 (appears 
also on other architectures (see lvm mailing list)) recompile the 
lvm-tools without optimisation or "weak" optimisation (-O0).

HTH, Holger

$ uname -a
Linux fb0483 2.4.9-pa42 #1 Mon Oct 8 14:07:25 CEST 2001 parisc unknown
$ df
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/sda3               126916     51947     68413  44% /
/dev/vg00/lvol1         507748     70439    411095  15% /var
/dev/vg00/lvol2        3096336   2563960    375092  88% /usr
/dev/vg00/lvol3         253871     55726    185038  24% /home
/dev/vg00/lvol4          87261     65674     17082  80% /usr/local
/dev/vg01/lvol1        1052632    125496    927136  12% /work 

-- 
Holger Grothe  (Email: hgrothe@mathematik.tu-darmstadt.de)
Fachbereich Mathematik, TU Darmstadt




From - Thu Nov 08 21:19:48 2018
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From: "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
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Subject: RE: [parisc-linux] bad loopback error msg
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Got exactly the same on 712/100 (STI).
After I did: "ifconfig lo down" those messages did clobber my screen again
Perhaps a overkill, but it works..

Hans

	-----Original Message-----
	From:	Grant Grundler [SMTP:grundler@puffin.external.hp.com]
	Sent:	Tuesday, October 09, 2001 2:20 AM
	To:	parisc-linux@lists.parisc-linux.org
	Subject:	[parisc-linux] bad loopback error msg

	Hi,

	Helped someone install 0.9.2 on a B180 (serial console) and
following
	the instructions, basically got it up and running.  He needed some
help
	with setting up apt (pointing to HP internal mirror).

	But I couldn't figure out what was causing the following error msg
	to get printed on the console every minute or so:

	    ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
	    skb: pf=2 (unowned) dev=lo len=328
	    PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000
T=16

	Any ideas?

	This B180 is up-to-date but still running 2.4.0-32 vmlinux
	(original kernels from 0.9.2 I think).

	grant


	_______________________________________________
	parisc-linux mailing list
	parisc-linux@lists.parisc-linux.org
	http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] EISA support
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To: Matthew Wilcox <willy@debian.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:12579

On Thu, Oct 11, 2001 at 02:40:10AM +0100, Matthew Wilcox wrote:
> Turns out it's unsufferably ugly to do this right now, due to Mongoose
> being a _sibling_ of Asp, not a _child_.  So I've put a nasty patch at
> ftp://puffin.external.hp.com/pub/parisc/src/eisa-irq.c which works enough
> that it seems to claim the IRQs; but the hp100 driver just allocates
> IRQ3 and doesn't allow any kind of fixup, so I haven't actually tested it.


asp_find_irq() wants changing:

-               case 0x76:      irq = 21; break; /* Centronics */
+               case 0x76:      irq = 17; break; /* EISA BA */

and needs a default case to avoid returning random irq values.

and you probably want something like this in eisa_probe():

        eisa_dev.region->action = kmalloc(sizeof(struct irqaction) * 32, GFP_ATOMIC);
        memset(eisa_dev.region->action, 0, sizeof(struct irqaction) * 32);

I'm sure '32' is wrong, but at least you need some range checking on
irq in eisa_irq() before using it to index in to the action array.

Now I get one EISA irq immediately that request_irq(irq, eisa_irq, 0, name, NULL)
is called, at which point the above allocation hasn't yet happened ==> bang.
Incidently, eisa_irq() reports "EISA irq 167" for that event so using irq
as a simple index into action[] is probably wrong.

I don't get any further eisa_irq() calls once my scsi card gerneates an
interrupt, but for all I know I may have to poke some registers in the
card before it allows interrupts out.

Richard





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Subject: [parisc-linux] Glibc 2.2.4-2 No Optimizations = No Compliation
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pa-list,

I was working on glibc once again last night.

With the hopes of compiling the library with less optimizations
and tracing through some saner PARISC assembly.

I've noticed that glibc-2.2.4/config.h.in (eventually becomes
config.h) throws an error if glibc is compiled wihtout 
optimizations.

"#error glibc cannot be compiled without optimizations"

Why?

I've trolled the glibc lists, and the faq, hunted through gcc
manuals and referance documentation... to no avail.

As of last year, Drepper made -02 the stable glibc 
compilation standard.

I've compiled glibc with -O1 and it looks like saner assembly.
I have yet to do a full trace through again.

I would like to compile with -O0, but I'm not quite sure of
the ramifications. 

Any reasons why I can't? Any ideas?

c.

Note: This is only for the sake of debugging :)




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From: norbert.naether@leica-microsystems.com
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HPA4552A, stifb
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Hi,

the C200 VISUALIZE with an HPA4552A graphic board (SUMMIT fx2) is finally
running sticon. :-)
I only added the PCI device ID to sti_pci_tbl[ ] in sticore.c :

{ PCI_VENDOR_ID_HP, 0x1008, PCI_ANY_ID, PCI_ANY_ID, 0 ,0, 0}

Now, I did some (more or less stupid..) things in stifb.c. With one
(expected) result:  *take the power cord !* ;-)
Is there anything I could do, to get this device running the framebuffer
driver ?

Thanks,
Greetings, Norbert
....
....
Oct 11 10:05:04 hp707 kernel: Starting kswapd v1.8
Oct 11 10:05:04 hp707 kernel: parport_init_chip: initialize bidirectional-mode.
Oct 11 10:05:04 hp707 kernel: parport0: PC-style at 0xffd02800, irq 216 [PCSPP,TRISTATE]
Oct 11 10:05:04 hp707 kernel: STI PCI ROM enabled at 0xf1e00000
Oct 11 10:05:04 hp707 kernel: PCI graphic ROM found at f1e00000 (2048 kB), fb @f6000000 (32 MB)
Oct 11 10:05:04 hp707 kernel: PCI region 0: f6000000 with 32768 kB
Oct 11 10:05:04 hp707 kernel: PCI region 1: 00000000 with 0 kB
Oct 11 10:05:04 hp707 kernel: PCI region 2: 00000000 with 0 kB
Oct 11 10:05:04 hp707 kernel: PCI region 3: 00000000 with 0 kB
Oct 11 10:05:04 hp707 kernel: PCI region 4: 00000000 with 0 kB
Oct 11 10:05:04 hp707 kernel: PCI region 5: 00000000 with 0 kB
Oct 11 10:05:04 hp707 kernel: PCI region 6: f1e00000 with 2048 kB
Oct 11 10:05:04 hp707 kernel: PCI region 7: 00000000 with 0 kB
Oct 11 10:05:04 hp707 kernel: PCI region 8: 00000000 with 0 kB
Oct 11 10:05:04 hp707 kernel: PCI region 9: 00000000 with 0 kB
Oct 11 10:05:04 hp707 kernel: PCI region 10: 00000000 with 0 kB
Oct 11 10:05:04 hp707 kernel: PCI region 11: 00000000 with 0 kB
Oct 11 10:05:04 hp707 kernel: Trying PCI STI ROM at f1e00000, PCI hpa at f6000000
Oct 11 10:05:04 hp707 kernel: sig 55aa0000, PCI STI ROM at f1e00044
Oct 11 10:05:04 hp707 kernel: STI word mode ROM at f1e00044, hpa=f6000000
Oct 11 10:05:04 hp707 kernel: STI word mode ROM, id 2fc1066b-9a02587, conforms to spec rev. 8.09
Oct 11 10:05:04 hp707 kernel: STI device: HPA4552A
Oct 11 10:05:04 hp707 kernel: stifb: Unsupported graphics card (id=0x2fc1066b) - skipping.
Oct 11 10:05:04 hp707 kernel: pty: 256 Unix98 ptys configured
....
....





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From: "Pedot, Wolfgang" <wpedot@harris.com>
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Subject: RE: [parisc-linux] EISA support
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> Anyone want to review a patch that makes EISA work?  I've only
> tested it on a 715/75 with a Mongoose chip; but Wax is
> supposed to be programmatically identical.  The patch is
> 18k, so rather than post it to the list, it's available from
> ftp://puffin.external.hp.com/pub/parisc/src/eisa.diff
>=20
I=B4ve just tested this patch on my 715/75 and it seems the =
EISA-Subsystem works.
Since I don=B4t have an EISA-Card I=B4ve tried an old ISA-Nic (NE2000) =
but the
driver-module has problems detecting the interrupt of the card and i =
have no
idea which one to use.....
I can give the module any irq i want and it says everything is fine but =
of
course no network-traffic possible.....
Is there any chance to bring this card to life?

greetings
Wolfgang





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Subject: Re: [parisc-linux] Glibc 2.2.4-2 No Optimizations = No Compliation
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On Thu, Oct 11, 2001 at 07:31:01AM -0400, Carlos O'Donell Jr. wrote:
> With the hopes of compiling the library with less optimizations
> and tracing through some saner PARISC assembly.

I dunno... I oftn find optimised easier to read.

> I've noticed that glibc-2.2.4/config.h.in (eventually becomes
> config.h) throws an error if glibc is compiled wihtout 
> optimizations.
> 
> "#error glibc cannot be compiled without optimizations"

I don't know.  But I guess glibc needs to inline something, and this doesn't
happen below -O1.

-- 
Revolutions do not require corporate support.




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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Glibc 2.2.4-2 No Optimizations = No Compliation
Date: Thu, 11 Oct 2001 09:59:13 -0400
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> 
> I dunno... I oftn find optimised easier to read.
> 

Really?
How about unrolled loops? ;)

In this case with GCC 3.0 being so fresh, there might
be some issues with -O2... so I'd like to see what 
happend at -O0.  I've patched, and I'm currently 
recompiling with -O0... so we'll see.

> 
> I don't know.  But I guess glibc needs to inline something, and this doesn't
> happen below -O1.
> 

True. But that really shouldn't make much difference since
AFAIK inlining doesn't happen until -O2, but config.h just says...
"You must have atleast -O1"

Those inlines, if they aren't there, would cause the build to fail...
and I still haven't seen any indication of this.

We shall see. If -O0 still segfaults, I'll trace that asm and
see what I can see... damn this all sounds so much like voodoo
magic.

c.




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Glibc 2.2.4-2 No Optimizations = No Compliation
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To: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>,
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On Thu, Oct 11, 2001 at 09:59:13AM -0400, Carlos O'Donell Jr. wrote:
> Really?
> How about unrolled loops? ;)

Sometimes.  More importantly, gcc stops doing stupid things with -O1,
particulalry shifting registers backwards and forwards with no net effect.

> True. But that really shouldn't make much difference since
> AFAIK inlining doesn't happen until -O2, but config.h just says...
> "You must have atleast -O1"

Not the case.  gcc will inline functions marked as such at -O1.  At -O3,
it decides for itself to inline some things.

-- 
Revolutions do not require corporate support.




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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: Re: [parisc-linux] Glibc 2.2.4-2 No Optimizations = No Compliation
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> 
> Sometimes.  More importantly, gcc stops doing stupid things with -O1,
> particulalry shifting registers backwards and forwards with no net effect.
> 

I've not seen such mischieviously deviant behaviour from gcc :}

> 
> Not the case.  gcc will inline functions marked as such at -O1.  At -O3,
> it decides for itself to inline some things.
>

Ok.

Compiled with -O0 and I get undefined referancs to try_lock...
curse those inlined functions.

Back to -O1 and some debugging.

c.




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] a todo entry
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To: Jurij Smakov <jurij@lokmail.net>
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On Thu, Oct 11, 2001 at 05:52:59AM -0400, Jurij Smakov wrote:
> > #define KERNEL_DS 0
> > #define USER_DS mfsp(3)
> > #define get_ds() (KERNEL_DS)
> > #define get_fs() mfsp(2)
> > #define set_fs(x) mtsp(x, 3)
> 
> I've been looking at it for the last two days and I still
> cannot understand it :-). Why do You want set_fs to write to
> sr3?

That was a mistake -- should be #define set_fs(x) mtsp(x, 2)

> a) In userspace sr2 is always 0, so that everybody can make 
>    their syscals.
> b) sr2 is set to sr3 when we enter the kernel.
> c) get_fs returns sr2 and set_fs sets sr2, so that we can
>    always use sr2 as the space in __get_user/__set_user
> d) When we return to userspace from the kernel, sr2 is
>    set to 0 again.

Yes.

> While modification of uaccess.h to satisfy c) is more or less
> trivial, real problem for me is b) and d). I'm not quite sure, 
> where to look for these entries and returns? I would guess, 
> entry.S is the right place, but obviously I didn't RTFM enough to
> hack it yet.

Right.  I suspect the only place(s?) we need to set sr2 to 0 is where we
set sr4-7 to the user's space ID, and set sr2 to sr3 in the same places
we set sr4-7 to 0.  But that theory needs setting up and testing...

-- 
Revolutions do not require corporate support.




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From: "Bjoern A. Zeeb" <bzeeb+hplinux@zabbadoz.net>
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Subject: Re: [parisc-linux] puffin.external.hp.com,... unreachable through 
 quest
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On Wed, 10 Oct 2001, Bjoern A. Zeeb wrote:

> The prob still seems to exist from what I can tell from here :(

Hi,

sorry for answering my own posting but as Jurriaan Kalkman reported to
me puffin et al are reacheable again via kpn/quest. I tested from my
sites an can affirm this.

:)

Thanks

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/





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From: Richard Allen <ra@hp.is>
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Subject: [parisc-linux] B2000
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I just got a B2000 in and I decided to test it with Linux.

The B2000 is a strange beast.  It's got USB keyboard and mouse.
It has a IDE cdrom drive.

The 0.92 iso began booting and loaded the kernel.   It's console (B2000
is a workstation with a graphical console) went blank and the screen went
into powersaving mode.

Judging by the front panel LCD, things went very bad ;)   It was cycling
through many HPMC and FLT codes.

FLT CBF4: SYS BD
Bad OS HPMC cksm

FLT CBFC: SYS BD
Os hpmc br err

FLT CBF0: SYS BD
HPMC initiated

FLT 500B: SYS BD
Bus timeout



-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




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From: Carlos Charlie Navarro <charlie_navarro@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] XFree on 712/60: BLUE instead of GREY/WHITE
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Hello people,

What is the status about this problem. 

Thank you in advance..

Charlie




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From: "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] FW: SKB errors
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Hi All,

Yesterday I received a (old but unused) 712/100 and tried to install the
latest cd (0.9.2)

All went reasonably well but after some time I got a very annoying lot of
error messages:

ip_local_deliver: bad loopback SKB PRE_ROUTING LOCAL_IN
SKB: pf=2 (unowned) dev=lo len=328
Proto=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16

These three lines appear every minute or so.

So I have a couple of questions:
1)	What's going on? it seems that the device driver for the loopback
interface has a problem with its (linked-list) buffers

2)	How to get rid of it? switching consoles is no use: they haunt me
everywhere ;-)
At this moment, I do a "ifconfig lo down" but  I guess its not a proper
thing to do...


Kind regards, Hans Witvliet




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Hi All,

Yesterday I received a (old but unused) 712/100 and tried to install the
latest cd (0.9.2)

All went reasonably well but after some time I got a very annoying lot of
error messages:

ip_local_deliver: bad loopback SKB PRE_ROUTING LOCAL_IN
SKB: pf=2 (unowned) dev=lo len=328
Proto=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16

These three lines appear every minute or so.

So I have a couple of questions:
1)	What's going on? it seems that the device driver for the loopback
interface has a problem with its (linked-list) buffers

2)	How to get rid of it? switching consoles is no use: they haunt me
everywhere ;-)
At this moment, I do a "ifconfig lo down" but  I guess its not a proper
thing to do...


Kind regards, Hans Witvliet




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Subject: Re: [parisc-linux] XFree on 712/60: BLUE instead of GREY/WHITE
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To: Carlos Charlie Navarro <charlie_navarro@yahoo.com>
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On Thu, Oct 11, 2001 at 03:05:26PM -0300, Carlos Charlie Navarro wrote:
> Hello people,
> 
> What is the status about this problem. 
> 
> Thank you in advance..
> 
I distinctly remember an email saying this was solved - what kernel are
you using?

Jurriaan
-- 
I think the phrase rhymes with 'clucking bell'.
	Blackadder goes forth - Goodbyeee
GNU/Linux 2.4.10-ac10 SMP/ReiserFS 2x1402 bogomips load av: 0.35 0.08 0.03




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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] XFree on 712/60: BLUE instead of GREY/WHITE
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On Thursday 11 October 2001 20:05, Carlos Charlie Navarro wrote:
> Hello people,
>
> What is the status about this problem.
>
> Thank you in advance..
>
> Charlie

This was fixed by Thomas Bogendoerfer and new kernels >= 2.4.9-pa47
are ok.

Helgel




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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] B2000
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To: Richard Allen <ra@hp.is>
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   of "Thu, 11 Oct 2001 16:47:35 -0000." <20011011164735.I4861@hp.is> 
Xref: news.gmane.org gmane.linux.ports.parisc:12595

Richard Allen wrote:
> I just got a B2000 in and I decided to test it with Linux.
> 
> The B2000 is a strange beast.  It's got USB keyboard and mouse.
> It has a IDE cdrom drive.

Yup. none of which is supported yet.
USB support is almost ready.
I need to look at IDE-CDROM support because of issues
with the IDE drivers and DMA. I've got a pile of other
things on my todo list as well so this may take a while.

> The 0.92 iso began booting and loaded the kernel.   It's console (B2000
> is a workstation with a graphical console) went blank and the screen went
> into powersaving mode.

You need to use serial console and boot via LAN and setup
an NFS root to install on a local HD. Lack of CD-ROM support,
issues with SE SCSI on those boxes, and no testing of sticons
(console driver for graphics head) makes installing from CD somewhat
unatractive on that generation of workstation. But several folks
(including me) are running parisc-linux on C3000, J5000, and J7000
machines. It's just not easy to install yet.

> Judging by the front panel LCD, things went very bad ;)   It was cycling
> through many HPMC and FLT codes.

Could be any one of the unsupported devices or bugs in the older kernel.

There is talk of a 0.9.3 ISO but no plan of when to release it.
I'd expect in the next month or so.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253




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On Tue, Oct 09, 2001 at 07:53:07AM +0200, Witvliet, Hans wrote:
> Hi All,
> 
> Yesterday I received a (old but unused) 712/100 and tried to install the
> latest cd (0.9.2)
> 
> All went reasonably well but after some time I got a very annoying lot of
> error messages:
> 
> ip_local_deliver: bad loopback SKB PRE_ROUTING LOCAL_IN
> SKB: pf=2 (unowned) dev=lo len=328
> Proto=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
> 
> These three lines appear every minute or so.
> 
> So I have a couple of questions:
> 1)	What's going on? it seems that the device driver for the loopback
> interface has a problem with its (linked-list) buffers

this has something to do with the dhcp-client, that is started
erroneously.

> 
> 2)	How to get rid of it? switching consoles is no use: they haunt me
> everywhere ;-)

killall dhcp to stop it now, then rm /etc/rc?.d/*dhcp* to stop it after
the next reboot.

There is something to be said for downloading or using the archives of
this mailing-list, they provide a wealth of information :-)

Good luck,
Jurriaan
-- 
As of next week, passwords will be entered in Morse code.
GNU/Linux 2.4.10-ac10 SMP/ReiserFS 2x1402 bogomips load av: 0.01 0.09 0.06




From - Thu Nov 08 21:19:49 2018
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Subject: Re: [parisc-linux] FW: SKB errors
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Xref: news.gmane.org gmane.linux.ports.parisc:12597

"Witvliet, Hans" wrote:
> All went reasonably well but after some time I got a very annoying lot of
> error messages:
> 
> ip_local_deliver: bad loopback SKB PRE_ROUTING LOCAL_IN
> SKB: pf=2 (unowned) dev=lo len=328
> Proto=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16

I just asked the same questions last week.
See the archives at lists.parisc-linux.org.
Short answer is get a newer kernel from the
puffin.external.hp.com ftp site (pub/parisc/binaries/kernel, iirc)

grant




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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HPA4552A, stifb
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To: norbert.naether@leica-microsystems.com
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On Thu, Oct 11, 2001 at 12:27:13PM +0200, norbert.naether@leica-microsystems.com wrote:
> the C200 VISUALIZE with an HPA4552A graphic board (SUMMIT fx2) is finally
> running sticon. :-)

cool, I've checked, whether I get the same on my FX6. And it works:-)

> I only added the PCI device ID to sti_pci_tbl[ ] in sticore.c :
> 
> { PCI_VENDOR_ID_HP, 0x1008, PCI_ANY_ID, PCI_ANY_ID, 0 ,0, 0}

I'm going to commit that change later.

Is there a reason for the #if 1 /* FIXME: */ in sticore.c ? Which machines
will lockup, if PCI graphics boards are enabled ?

> Now, I did some (more or less stupid..) things in stifb.c. With one
> (expected) result:  *take the power cord !* ;-)
> Is there anything I could do, to get this device running the framebuffer
> driver ?

no way without documentation or at least some source code to look at.
I've tried treating my fx6 as VIS-EG or HCRX, both locked up the machine.
So the FX boards aren't like the old ngle like boards.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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Hello parisc,

Has anyone given any thought to how one would go about solving the
problem outlined below? I am quite anxious to get my 720/50 working
properly. :-)

Keep up the good work, hackers!

Regards,

Albert

On Sat, 06 Oct 2001, Albert Strasheim wrote:

> Hello,
> 
> On Wed, 03 Oct 2001, John Marvin wrote:
> 
> <snip>
> 
> > However, ls still hangs randomly (actually it is not random, it depends on
> > which directory the ls is done in).  It gets stuck in a ldcw loop due to
> > the lock word not being 16 byte aligned.  The problem is that we fixed the
> > alignment problems for static and dynamic allocations, but the align
> > attribute is ignored for automatic (stack) allocations. Note that
> > although ldcw requires 16 byte alignment for correct function, it does
> > not cause an unaligned fault if the address is not aligned, it just
> > doesn't work correctly!
> > 
> > Here are some suggested fixes:
> > 
> >     1) Fix the compiler to honor the aligned attribute for stack
> >     allocations. I'm not sure how difficult this would be. I'm
> >     not a compiler person, so someone else would have to do this.
> >     I would guess that this problem is in the machine independent
> >     part of the compiler. I'm not sure whether or not it would
> >     be considered a bug. It might be worth writing a test for
> >     the 386 version of gcc, and if it fails, report the "bug" and
> >     see what happens ...
> > 
> >     2) Change the lock structure to have 4 contiguous lock words, each
> >     initialized to 1.  Then the lock code can round the address up to the
> >     nearest 16 byte aligned address and use that for the semaphore.  If we
> >     choose this solution we can just get rid of the aligned attribute,
> >     since it would no longer serve any purpose.
> 
> As anyone decided on what do here? What would the test that John
> mentions entail? How difficult is the second solution to implement?
> 
> Regards,
> 
> Albert






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On Thursday 11 October 2001 21:28, Thomas Bogendoerfer wrote:
> Is there a reason for the #if 1 /* FIXME: */ in sticore.c ? Which machines
> will lockup, if PCI graphics boards are enabled ?

Last time I tested it HPMC'ed my c3000 with a VISUALIZE_EG PCI card.

Helge






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I just upgraded my C360 to todays kernel snapshot.

Linux bofh 2.4.9-pa47 #1 Thu Oct 11 17:19:20 UTC 2001 parisc unknown

And now for the first time the leds on the front panel are working :-)
Great work :-)

Now I wont get "helpful" coworkers coming into my booth and saying to
themselves: "Gee, that C360 looks frozen. Id better powercycle it for him." :)

IHMO, a major milestone in PA-Risc linux development :)

-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




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On Thu, Oct 11, 2001 at 12:23:51PM +0100, Richard Hirst wrote:
> asp_find_irq() wants changing:
> 
> -               case 0x76:      irq = 21; break; /* Centronics */
> +               case 0x76:      irq = 17; break; /* EISA BA */

Umm.  According to the Coral/Cobra (720/730/750) ERS I have here, irq 17
on Asp is error.  The Hardball ERS claims the same for the Cutoff ASIC
(someone's written in pencil `Asp 2' by it).  The comment is bogus;
I'll fix that.

> and needs a default case to avoid returning random irq values.

Yep, fixed in my tree.

> and you probably want something like this in eisa_probe():
> 
>         eisa_dev.region->action = kmalloc(sizeof(struct irqaction) * 32, GFP_ATOMIC);
>         memset(eisa_dev.region->action, 0, sizeof(struct irqaction) * 32);
> 
> I'm sure '32' is wrong, but at least you need some range checking on
> irq in eisa_irq() before using it to index in to the action array.

Probably something along those lines.  Apparently I should mask the byte
returned as well, but the docs say to see the Intel 82357 ISP data sheet
for details.  Grumble.

> I don't get any further eisa_irq() calls once my scsi card gerneates an
> interrupt, but for all I know I may have to poke some registers in the
> card before it allows interrupts out.

Looks like we're getting one error, and not resetting the bus.  Wonder why
we're getting an error...

-- 
Revolutions do not require corporate support.




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From: "Neulinger, Nathan" <nneul@umr.edu>
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Subject: [parisc-linux] new scsi drivers...
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Well, just updated my j210, and it seems to work ok, but for one tiny
detail. (Well, not really a problem, just a heads-up.)

The ordering of scsi devices changes with this new driver.

My J210 has two narrow scsi disks (4,5) (booting off 4), and two wide (5,6).
They showed up previously as "sda, sdb, sdc, sdd" respectively. Now they are
"sdc, sdd, sda, sdb".

Not a problem once I realized what was happening. Just keep aware of this in
case anyone else sees similar problem.

I must say though - very nice work with palo's edit at boot mode... 

FYI - The LCD is working great on the j210 now as well. 

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216




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> FYI - The LCD is working great on the j210 now as well. 

Actually, I take that back. The heartbeat on LCD is hollow (non blinking),
and the LED is blinking. Seems better than it was (stuck in INIT) though.
(Isn't the LED normally on solid when system is running and only blinking at
init or shutdown?)

-- Nathan




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BTW, Whatever y'all did with the network to the mailing list host -
wonderful - it now responds really quick to list submissions.

-- Nathan

> -----Original Message-----
> From: Neulinger, Nathan [mailto:nneul@umr.edu]
> Sent: Thursday, October 11, 2001 3:52 PM
> To: 'parisc-linux@lists.parisc-linux.org'
> Subject: RE: [parisc-linux] new scsi drivers...
> 
> 
> > FYI - The LCD is working great on the j210 now as well. 
> 
> Actually, I take that back. The heartbeat on LCD is hollow 
> (non blinking),
> and the LED is blinking. Seems better than it was (stuck in 
> INIT) though.
> (Isn't the LED normally on solid when system is running and 
> only blinking at
> init or shutdown?)
> 
> -- Nathan
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] EISA changes broke SuckyIO
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Xref: news.gmane.org gmane.linux.ports.parisc:12606

Matthew Wilcox wrote:
> The recent changes (-pa46 or so) which I made to support EISA have
> broken SuckyIO-based boxes -- everything from the B1000 to J7000.
> This will get fixed tomorrow.

I tried to fix this modifying suckyio support to work with
something other tha zero-based IOport space. serial and parallel
ports worked. IDE was causing data page faults at boot and I decided
I wasn't going to pursue this path any further. Here's the patch of
what I've done so far in case anyone needs to support suckyio as an
add-on card.

Matthew promised to fix the EISA support so HBA 0 isn't reserved
for all platforms. And suckyio will get zero based IO port
space again.

grant


Index: arch/parisc/kernel/superio.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/superio.c,v
retrieving revision 1.8
diff -u -p -r1.8 superio.c
--- superio.c	2001/09/06 09:44:07	1.8
+++ superio.c	2001/10/11 20:55:51
@@ -76,6 +76,25 @@ static struct superio_device sio_dev = {
 	iosapic_irq: -1
 };
 
+#if 1
+/* CONFIG_EISA support reserves HBA 0.
+** Suckyio up to now assumed it had HBA 0 (which is normally true).
+*/
+static int sio_hba_base = 0;
+static __inline__ unsigned char sio_inb(addr)
+{
+	return inb(sio_hba_base + addr);
+}
+
+static void __inline__ sio_outb(unsigned char val, unsigned int addr)
+{
+	outb(val, sio_hba_base + addr);
+}
+#else /* !CONFIG_EISA */
+#define sio_inb inb
+#define sio_outb outb
+#endif /* !CONFIG_EISA */
+
 void
 superio_inform_irq(int irq)
 {
@@ -98,9 +117,9 @@ superio_interrupt(int irq, void *devp, s
 	u8 local_irq;
 
 	/* Poll the 8259 to see if there's an interrupt. */
-	outb (OCW3_POLL,IC_PIC1+0);
+	sio_outb (OCW3_POLL,IC_PIC1+0);
 
-	results = inb(IC_PIC1+0);
+	results = sio_inb(IC_PIC1+0);
 
 	if ((results & 0x80) == 0) {
 #ifndef CONFIG_SMP
@@ -124,8 +143,8 @@ superio_interrupt(int irq, void *devp, s
 
 		/* Could be spurious. Check in service bits */
 
-		outb(OCW3_ISR,IC_PIC1+0);
-		results = inb(IC_PIC1+0);
+		sio_outb(OCW3_ISR,IC_PIC1+0);
+		results = sio_inb(IC_PIC1+0);
 		if ((results & 0x80) == 0) { /* if ISR7 not set: spurious */
 			printk(KERN_WARNING "SuperIO: spurious interrupt!\n");
 			return;
@@ -140,7 +159,7 @@ superio_interrupt(int irq, void *devp, s
 
 	/* set EOI */
 
-	outb((OCW2_SEOI|local_irq),IC_PIC1 + 0);
+	sio_outb((OCW2_SEOI|local_irq),IC_PIC1 + 0);
 	return;
 }
 
@@ -162,20 +181,29 @@ superio_init(struct superio_device *sio)
 	printk (KERN_INFO "SuperIO: Found NS87560 legacy I/O device at %s. iosapic irq = %i \n",
 		pdev->slot_name,sio->iosapic_irq);
 
+/* #ifdef CONFIG_EISA */
+#if 1
+	sio_hba_base = HBA_FIXUP_IOPORT(pdev, 0);
+#endif
+
 	/* Find our I/O devices */
-	pci_read_config_word (pdev, SIO_SP1BAR, &sio->sp1_base);
+	pci_read_config_word (pdev, SIO_SP1BAR, &word);
+	sio->sp1_base = HBA_FIXUP_IOPORT(pdev, word);
 	sio->sp1_base &= ~1;
 	printk (KERN_INFO "SuperIO: Serial port 1 at 0x%x\n", sio->sp1_base);
 
-	pci_read_config_word (pdev, SIO_SP2BAR, &sio->sp2_base);
+	pci_read_config_word (pdev, SIO_SP2BAR, &word);
+	sio->sp2_base = HBA_FIXUP_IOPORT(pdev, word);
 	sio->sp2_base &= ~1;
 	printk (KERN_INFO "SuperIO: Serial port 2 at 0x%x\n", sio->sp2_base);
 
-	pci_read_config_word (pdev, SIO_PPBAR, &sio->pp_base);
+	pci_read_config_word (pdev, SIO_PPBAR, &word);
+	sio->pp_base = HBA_FIXUP_IOPORT(pdev, word);
 	sio->pp_base &= ~1;
 	printk (KERN_INFO "SuperIO: Parallel port at 0x%x\n", sio->pp_base);
 
-	pci_read_config_word (pdev, SIO_FDCBAR, &sio->fdc_base);
+	pci_read_config_word (pdev, SIO_FDCBAR, &word);
+	sio->fdc_base = HBA_FIXUP_IOPORT(pdev, word);
 	sio->fdc_base &= ~1;
 	printk (KERN_INFO "SuperIO: Floppy controller at 0x%x\n", sio->fdc_base);
 
@@ -202,28 +230,28 @@ superio_init(struct superio_device *sio)
 		pci_write_config_byte (pdev, i, 0x0);
 
 	/* PIC1 Initialization Command Word register programming */
-	outb (0x11,IC_PIC1+0);	/* ICW1: ICW4 write req | ICW1 */
-	outb (0x00,IC_PIC1+1);	/* ICW2: N/A */
-	outb (0x04,IC_PIC1+1);	/* ICW3: Cascade */
-	outb (0x01,IC_PIC1+1);	/* ICW4: x86 mode */
+	sio_outb (0x11,IC_PIC1+0);	/* ICW1: ICW4 write req | ICW1 */
+	sio_outb (0x00,IC_PIC1+1);	/* ICW2: N/A */
+	sio_outb (0x04,IC_PIC1+1);	/* ICW3: Cascade */
+	sio_outb (0x01,IC_PIC1+1);	/* ICW4: x86 mode */
 
 	/* PIC1 Program Operational Control Words */
-	outb (0xff,IC_PIC1+1);	/* OCW1: Mask all interrupts */
-	outb (0xc2,IC_PIC1+0);  /* OCW2: priority (3-7,0-2) */
+	sio_outb (0xff,IC_PIC1+1);	/* OCW1: Mask all interrupts */
+	sio_outb (0xc2,IC_PIC1+0);  /* OCW2: priority (3-7,0-2) */
 
 	/* PIC2 Initialization Command Word register programming */
-	outb (0x11,IC_PIC2+0);	/* ICW1: ICW4 write req | ICW1 */
-	outb (0x00,IC_PIC2+1);	/* ICW2: N/A */
-	outb (0x02,IC_PIC2+1);	/* ICW3: Slave ID code */
-	outb (0x01,IC_PIC2+1);	/* ICW4: x86 mode */
+	sio_outb (0x11,IC_PIC2+0);	/* ICW1: ICW4 write req | ICW1 */
+	sio_outb (0x00,IC_PIC2+1);	/* ICW2: N/A */
+	sio_outb (0x02,IC_PIC2+1);	/* ICW3: Slave ID code */
+	sio_outb (0x01,IC_PIC2+1);	/* ICW4: x86 mode */
 		
 	/* Program Operational Control Words */
-	outb (0xff,IC_PIC1+1);	/* OCW1: Mask all interrupts */
-	outb (0x68,IC_PIC1+0);	/* OCW3: OCW3 select | ESMM | SMM */
+	sio_outb (0xff,IC_PIC1+1);	/* OCW1: Mask all interrupts */
+	sio_outb (0x68,IC_PIC1+0);	/* OCW3: OCW3 select | ESMM | SMM */
 
 	/* Write master mask reg */
 
-	outb (0xff,IC_PIC1+1);
+	sio_outb (0xff,IC_PIC1+1);
 
 	/* Set up interrupt routing */
 
@@ -262,9 +290,9 @@ superio_disable_irq(void *dev, int local
 
 	/* Mask interrupt */
 
-	r8 = inb(IC_PIC1+1);
+	r8 = sio_inb(IC_PIC1+1);
 	r8 |= (1 << local_irq);
-	outb (r8,IC_PIC1+1);
+	sio_outb (r8,IC_PIC1+1);
 }
 
 static void
@@ -289,9 +317,9 @@ superio_enable_irq(void *dev, int local_
 
 	/* Unmask interrupt */
 
-	r8 = inb(IC_PIC1+1);
+	r8 = sio_inb(IC_PIC1+1);
 	r8 &= ~(1 << local_irq);
-	outb (r8,IC_PIC1+1);
+	sio_outb (r8,IC_PIC1+1);
 }
 
 static void
Index: include/asm-parisc/pci.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/pci.h,v
retrieving revision 1.31
diff -u -p -r1.31 pci.h
--- pci.h	2001/10/10 20:10:13	1.31
+++ pci.h	2001/10/11 20:55:54
@@ -69,6 +69,8 @@ struct pci_hba_data {
 #define HBA_PORT_BASE(h)	((h) << HBA_PORT_SPACE_BITS)
 #define HBA_PORT_SPACE_SIZE	(1UL << HBA_PORT_SPACE_BITS)
 
+#define HBA_FIXUP_IOPORT(pdev, b) (HBA_PORT_BASE(HBA_DATA(pdev->sysdata)->hba_num) + b)
+
 #define PCI_PORT_HBA(a)		((a) >> HBA_PORT_SPACE_BITS)
 #define PCI_PORT_ADDR(a)	((a) & (HBA_PORT_SPACE_SIZE - 1))
 
Index: include/asm-parisc/superio.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/superio.h,v
retrieving revision 1.3
diff -u -p -r1.3 superio.h
--- superio.h	2001/07/15 20:02:07	1.3
+++ superio.h	2001/10/11 20:55:54
@@ -38,10 +38,10 @@
 #define SUPERIO_NIRQS   8
 
 struct superio_device {
-	u16 fdc_base;
-	u16 sp1_base;
-	u16 sp2_base;
-	u16 pp_base;
+	unsigned int fdc_base;
+	unsigned int sp1_base;
+	unsigned int sp2_base;
+	unsigned int pp_base;
 	int iosapic_irq;
 	int iosapic_irq_enabled;
 	struct irq_region *irq_region;




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] puffin.external.hp.com,... unreachable through 
 quest
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To: Albert Strasheim <fullung@ilink.nis.za>,
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   of "Wed, 03 Oct 2001 12:27:25 MDT." <20011003182725.1901A37DBC@carmen.fc.hp.com> 
Xref: news.gmane.org gmane.linux.ports.parisc:12607

Matt Taggart writes...

> It appears to be a routing problem which seems to affect mostly non-US domain
> I filed a support request on Monday. They're still trying to figure out what'
> going on. I'll send mail once it's resolved.
> 
> Sorry for the outage,

Well it's fixed now but we don't know why yet. Thanks go to Lamont Jones 
<lamont@hp.com> for poking the right ISPs and getting someone to take 
action(rather than just point fingers). It's not his job but he got it done.

On behalf of HP, sorry this took so long to fix. Those responsible for the 
delay will be sufficently LARTed.

If anyone experiences problems like this in the future please contact me 
directly.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] EISA support
Date: Fri, 12 Oct 2001 07:44:49 +0100
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OK, just committed 2.4.9-pa49 which makes my hp100 EISA card work:

64 bytes from 15.1.50.0: icmp_seq=1 ttl=255 time=0.5 ms

Haven't made any effort to support busmastering cards yet, but having
ioports, iomem & interrupts working should allow most cards to function.

-- 
Revolutions do not require corporate support.




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] EISA support
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On Fri, Oct 12, 2001 at 07:44:49AM +0100, Matthew Wilcox wrote:
> 
> OK, just committed 2.4.9-pa49 which makes my hp100 EISA card work:
> 
> 64 bytes from 15.1.50.0: icmp_seq=1 ttl=255 time=0.5 ms
> 
> Haven't made any effort to support busmastering cards yet, but having
> ioports, iomem & interrupts working should allow most cards to function.

Still can't get any interrupts out of my EISA scsi card in 715/75.

Richard




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On Fri, Oct 12, 2001 at 09:47:19AM +0100, Richard Hirst wrote:
> On Fri, Oct 12, 2001 at 07:44:49AM +0100, Matthew Wilcox wrote:
> > 
> > OK, just committed 2.4.9-pa49 which makes my hp100 EISA card work:
> > 
> > 64 bytes from 15.1.50.0: icmp_seq=1 ttl=255 time=0.5 ms
> > 
> > Haven't made any effort to support busmastering cards yet, but having
> > ioports, iomem & interrupts working should allow most cards to function.
> 
> Still can't get any interrupts out of my EISA scsi card in 715/75.

I tried adding a handler for irq 81 (64 + 17), as you said that was
asp error, at the end of asp_init_chip().

        request_irq(81, asp_error, 0, "asp error", asp);

That handler gets called as soon as it is registered.  Is it likely that
EISA interrupts are blocked until that error is cleared down somehow?

Richard





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From: joel.soete@freebel.net
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Subject: [parisc-linux] Kernel panic with -pa48
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Hi Grant,

I met following problem with pa48 (on a 712/80):

...
VFS: Cannot open root device "sda3" or "08:03"
Please append a correct "root=" boot option
Kernel panic: vfs Unable to mount root fs on "08:03"

(I check if the fs is still correct. And I can still boot with 2.4.9-pa45.
So it could not any more recognise ext2fs)

Is it in relation with your mail:
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-October/014100.html

Thanks in adavance for advice,
        joel

PS: I had the same problem with or without LASI700 support

-------------------------------------------------
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Subject: Re: [parisc-linux] Kernel panic with -pa48
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On Fri, Oct 12, 2001 at 05:03:36PM +0200, joel.soete@freebel.net wrote:
> I met following problem with pa48 (on a 712/80):
> 
> ...
> VFS: Cannot open root device "sda3" or "08:03"
> Please append a correct "root=" boot option
> Kernel panic: vfs Unable to mount root fs on "08:03"
> 
> (I check if the fs is still correct. And I can still boot with 2.4.9-pa45.
> So it could not any more recognise ext2fs)

Umm.. I doubt your diagnosis is correct.  Can you send your kernel messages
that pertain to SCSI?  I have a 712/80 here which boots -pa48 just fine.

Linux 15.1.54.8 2.4.9-pa48 #125 Thu Oct 11 20:55:54 MDT 2001 parisc unknown

SCSI subsystem driver Revision: 1.00
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2
scsi0 : LASI SCSI 53c700
scsi0: (6:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST31230N          Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
scsi0: (6:0) Enabling Tag Command Queuing
SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)
Partition check:
 sda: sda1 sda2

I can fsck, mount sda2 without any trouble.

> Is it in relation with your mail:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-October/014100.html

No, that's to do with SuperIO on B1000 - J7000 workstations.  Plus,
-pa48 fixed that problem :-)

-- 
Revolutions do not require corporate support.




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Here is my kernel messages that pertain to SCSI (with pa42, sorry I have to made
some place):

Oct 12 15:42:52 palinux2 kernel: SCSI subsystem driver Revision: 1.00
Oct 12 15:42:52 palinux2 kernel: sim700: Configuring 53c710 (SCSI-ID 7) at
f0106100, IRQ 86, options 0
Oct 12 15:42:52 palinux2 kernel: scsi0: Revision 0x2
Oct 12 15:42:52 palinux2 kernel: scsi0: test 1 completed ok.
Oct 12 15:42:52 palinux2 kernel: scsi0 : LASI/Simple 53c7xx
Oct 12 15:42:52 palinux2 kernel:   Vendor: SEAGATE   Model: ST34572N         
Rev: HP03
Oct 12 15:42:52 palinux2 kernel:   Type:   Direct-Access                     
ANSI SCSI revision: 02
Oct 12 15:42:52 palinux2 kernel:   Vendor: HP        Model: C3325A           
Rev: HP08
Oct 12 15:42:52 palinux2 kernel:   Type:   Direct-Access                     
ANSI SCSI revision: 02
Oct 12 15:42:52 palinux2 kernel: Attached scsi disk sda at scsi0, channel 0, id
3, lun 0
Oct 12 15:42:52 palinux2 kernel: Attached scsi disk sdb at scsi0, channel 0, id
6, lun 0
Oct 12 15:42:52 palinux2 kernel: SCSI device sda: 8388314 512-byte hdwr sectors
(4295 MB)
Oct 12 15:42:52 palinux2 kernel: Partition check:
Oct 12 15:42:52 palinux2 kernel:  sda: sda1 sda2 sda3 sda4 < sda5 sda6 >
Oct 12 15:42:52 palinux2 kernel: SCSI device sdb: 4194685 512-byte hdwr sectors
(2148 MB)
Oct 12 15:42:52 palinux2 kernel:  sdb: unknown partition table
Oct 12 15:42:52 palinux2 kernel: Lasi Harmony Audio rev. 18 at 0xf0104000, using
IRQ 82

Is it enough help?

        joel


Quoting Matthew Wilcox <willy@debian.org>:

> On Fri, Oct 12, 2001 at 05:03:36PM +0200, joel.soete@freebel.net wrote:
> > I met following problem with pa48 (on a 712/80):
> > 
> > ...
> > VFS: Cannot open root device "sda3" or "08:03"
> > Please append a correct "root=" boot option
> > Kernel panic: vfs Unable to mount root fs on "08:03"
> > 
> > (I check if the fs is still correct. And I can still boot with
> 2.4.9-pa45.
> > So it could not any more recognise ext2fs)
> 
> Umm.. I doubt your diagnosis is correct.  Can you send your kernel
> messages
> that pertain to SCSI?  I have a 712/80 here which boots -pa48 just
> fine.
> 
> Linux 15.1.54.8 2.4.9-pa48 #125 Thu Oct 11 20:55:54 MDT 2001 parisc
> unknown
> 
> SCSI subsystem driver Revision: 1.00
> 53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
> scsi0: 53c710 rev 2
> scsi0 : LASI SCSI 53c700
> scsi0: (6:0) Synchronous at offset 8, period 100ns
>   Vendor: SEAGATE   Model: ST31230N          Rev: HP04
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
> scsi0: (6:0) Enabling Tag Command Queuing
> SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)
> Partition check:
>  sda: sda1 sda2
> 
> I can fsck, mount sda2 without any trouble.
> 
> > Is it in relation with your mail:
> >
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-October/014100.html
> 
> No, that's to do with SuperIO on B1000 - J7000 workstations.  Plus,
> -pa48 fixed that problem :-)
> 
> -- 
> Revolutions do not require corporate support.
> 
> 


-------------------------------------------------
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Subject: Re: [parisc-linux] Kernel panic with -pa48
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Hi Matt,

Just co -pa49 and boot again but strange behaviour (as with pa45).
Here the SCSI kernel messages:

>>> it tacks a long time (15s) before displaying the LOGO
....
Oct 12 17:22:34 palinux2 kernel: SCSI subsystem driver Revision: 1.00
Oct 12 17:22:34 palinux2 kernel: 53c700: Version 2.6 By
James.Bottomley@HansenPartnership.com
Oct 12 17:22:34 palinux2 kernel: scsi0: 53c710 rev 2
Oct 12 17:22:34 palinux2 kernel: scsi0 : LASI SCSI 53c700
Oct 12 17:22:34 palinux2 kernel: scsi0: (3:0) Synchronous at offset 8, period 100ns
Oct 12 17:22:34 palinux2 kernel:   Vendor: SEAGATE   Model: ST34572N         
Rev: HP03
Oct 12 17:22:34 palinux2 kernel:   Type:   Direct-Access                     
ANSI SCSI revision: 02
Oct 12 17:22:34 palinux2 kernel: scsi0: (6:0) Synchronous at offset 8, period 100ns
Oct 12 17:22:34 palinux2 kernel: scsi0 (6:0) New error handler wants to abort
command
Oct 12 17:22:34 palinux2 kernel: ^I0x12 00 00 00 ff 00
Oct 12 17:22:34 palinux2 kernel: scsi0 (6:0) New error handler wants device reset
Oct 12 17:22:34 palinux2 kernel: ^I0x12 00 00 00 ff 00
Oct 12 17:22:34 palinux2 kernel: scsi0 (6:0) New error handler wants BUS reset,
cmd 1006e800
Oct 12 17:22:34 palinux2 kernel: ^I0x12 00 00 00 ff 00
Oct 12 17:22:34 palinux2 kernel: scsi0: Bus Reset detected, executing command
1006e800, slot 00010520, dsp 00070528[0528]
Oct 12 17:22:34 palinux2 kernel:  failing command because of reset, slot
00010520, cmnd 1006e800
Oct 12 17:22:34 palinux2 kernel: scsi0: (6:0) Synchronous at offset 8, period 100ns
Oct 12 17:22:34 palinux2 kernel: scsi0 (6:0) New error handler wants to abort
command
Oct 12 17:22:34 palinux2 kernel: ^I0x03 00 00 00 40 00
Oct 12 17:22:34 palinux2 kernel: scsi: device set offline - not ready or command
retry failed after bus reset: host 0 chan
nel 0 id 6 lun 0

>>> here it takes a long time (about 30 seconds) before continuing?


Oct 12 17:22:34 palinux2 kernel: Attached scsi disk sda at scsi0, channel 0, id
3, lun 0
Oct 12 17:22:34 palinux2 kernel: scsi0: (3:0) Enabling Tag Command Queuing
Oct 12 17:22:34 palinux2 kernel: scsi0 (3:0) New error handler wants to abort
command
Oct 12 17:22:34 palinux2 kernel: ^I0x00 00 00 00 00 00
Oct 12 17:22:34 palinux2 kernel: scsi0: Bus Reset detected, executing command
1006e800, slot 00010520, dsp 00070528[0528]
Oct 12 17:22:34 palinux2 kernel:  failing command because of reset, slot
00010520, cmnd 1006e800
Oct 12 17:22:34 palinux2 kernel:  failing command because of reset, slot
00010654, cmnd 1005e800
Oct 12 17:22:34 palinux2 kernel: scsi0 (3:0) New error handler wants device reset
Oct 12 17:22:34 palinux2 kernel: ^I0x00 00 00 00 00 00
Oct 12 17:22:34 palinux2 kernel: scsi0 (3:0) New error handler wants BUS reset,
cmd 1005e800
Oct 12 17:22:34 palinux2 kernel: ^I0x00 00 00 00 00 00
Oct 12 17:22:34 palinux2 kernel: scsi0: Bus Reset detected, executing command
00000000, slot 00000000, dsp 00070528[0528]
Oct 12 17:22:34 palinux2 kernel: scsi0: (3:0) Synchronous at offset 8, period 100ns
Oct 12 17:22:34 palinux2 kernel: SCSI device sda: 8388314 512-byte hdwr sectors
(4295 MB)
Oct 12 17:22:34 palinux2 kernel: Partition check:
Oct 12 17:22:34 palinux2 kernel:  sda: sda1 sda2 sda3 sda4 < sda5 sda6 >

I hope it will be more helpfull.
      joel

PS: Now I have to leave office. Have a nice week-end.

Quoting Matthew Wilcox <willy@debian.org>:

> On Fri, Oct 12, 2001 at 05:03:36PM +0200, joel.soete@freebel.net wrote:
> > I met following problem with pa48 (on a 712/80):
> > 
> > ...
> > VFS: Cannot open root device "sda3" or "08:03"
> > Please append a correct "root=" boot option
> > Kernel panic: vfs Unable to mount root fs on "08:03"
> > 
> > (I check if the fs is still correct. And I can still boot with
> 2.4.9-pa45.
> > So it could not any more recognise ext2fs)
> 
> Umm.. I doubt your diagnosis is correct.  Can you send your kernel
> messages
> that pertain to SCSI?  I have a 712/80 here which boots -pa48 just
> fine.
> 
> Linux 15.1.54.8 2.4.9-pa48 #125 Thu Oct 11 20:55:54 MDT 2001 parisc
> unknown
> 
> SCSI subsystem driver Revision: 1.00
> 53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
> scsi0: 53c710 rev 2
> scsi0 : LASI SCSI 53c700
> scsi0: (6:0) Synchronous at offset 8, period 100ns
>   Vendor: SEAGATE   Model: ST31230N          Rev: HP04
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
> scsi0: (6:0) Enabling Tag Command Queuing
> SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)
> Partition check:
>  sda: sda1 sda2
> 
> I can fsck, mount sda2 without any trouble.
> 
> > Is it in relation with your mail:
> >
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-October/014100.html
> 
> No, that's to do with SuperIO on B1000 - J7000 workstations.  Plus,
> -pa48 fixed that problem :-)
> 
> -- 
> Revolutions do not require corporate support.
> 
> 


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On Fri, Oct 12, 2001 at 07:42:15PM +0200, joel.soete@freebel.net wrote:
> Oct 12 17:22:34 palinux2 kernel: scsi0: (6:0) Synchronous at offset 8, period 100ns
> Oct 12 17:22:34 palinux2 kernel: scsi0 (6:0) New error handler wants to abort
> command
> Oct 12 17:22:34 palinux2 kernel: ^I0x12 00 00 00 ff 00
> Oct 12 17:22:34 palinux2 kernel: scsi0 (6:0) New error handler wants device reset
> Oct 12 17:22:34 palinux2 kernel: ^I0x12 00 00 00 ff 00
> Oct 12 17:22:34 palinux2 kernel: scsi0 (6:0) New error handler wants BUS reset,
> cmd 1006e800
> Oct 12 17:22:34 palinux2 kernel: ^I0x12 00 00 00 ff 00
> Oct 12 17:22:34 palinux2 kernel: scsi0: Bus Reset detected, executing command
> 1006e800, slot 00010520, dsp 00070528[0528]
> Oct 12 17:22:34 palinux2 kernel:  failing command because of reset, slot
> 00010520, cmnd 1006e800

Last time I saw output like this was on a machine whose disc was making
very painful noises as it attempted to spin up.  Could this be the case
for your machine?

-- 
Revolutions do not require corporate support.




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: [parisc-linux] Re: Kernel panic with -pa48
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joel.soete@freebel.net wrote:
> Hi Grant,
> 
> I met following problem with pa48 (on a 712/80):

You might try -pa49.
712/80 doesn't have eisa either.
But I don't expect any devices on 712 to care which HBA they live under
since they are all "GSC" (mostly under LASI) devices.

grant




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This is a multi-part message in MIME format.
--------------26A9B85DFCB537BD6F5E9A14
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Hi all,

	Since September, PA/Linux improves a lot thanks to all the development
and to all the users reporting their troubles with the kernel. We are
trying to update the whole website including the manuals and more
important the list of boxes and the PA/Linux status for each of them. It
will be great if you could check that our inforamtion is true according
your experience :)

	I update also the parisc-linux-boot-HOWTO and put it to 0.7 step. Once
again, I hope that you can spend a little time in order to tell me if
you are satisfied of the content.

	Also, I take advantage of this mail to post another revision of hppa
configuration.help file.

Thanks for reading, Thomas.
ESIEE Team.
--------------26A9B85DFCB537BD6F5E9A14
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diff -Nru linux/Documentation/Configure.help linux.new/Documentation/Configure.help
--- linux/Documentation/Configure.help	Fri Aug 17 08:09:10 2001
+++ linux.new/Documentation/Configure.help	Sat Oct 13 01:49:26 2001
@@ -3059,9 +3059,9 @@
   Saying Y here will allow developers with a C180, C200, C240, C360,
   J200, J210, and/or a J2240 to test 64-bit kernels by providing 
   a wrapper for the 32-bit PDC calls.  Since the machines which 
-  which require this option do not support over 4G of RAM, this
-  option is targeted for developers of these machines wishing to
-  test changes on both 32-bit and 64-bit configurations.
+  require this option do not support over 4G of RAM, this option is 
+  targeted for developers of these machines wishing to test changes 
+  on both 32-bit and 64-bit configurations.
 
   If unsure, say N.
 
@@ -13267,11 +13267,11 @@
   cases where it is seen on PC/MAC architectures as well, usually also
   manufactured by HP.  This driver is based off MACH and BSD drivers,
   and implements support for a keyboard attached to the HIL port.
-  Full support for the USB-like functions and non-keyboard channels of the
-  HIL is not provided for in this driver.  There are vestiges of mouse
-  support in the driver, but it is probably not working.  The necessary
-  hardware documentation to fully support the HIL controller and interface
-  it to the linux-input API is lacking.
+  Full support for the USB-like functions and non-keyboard channels of 
+  the HIL is not provided for in this driver.  There are vestiges of 
+  mouse support in the driver, but it is probably not working.  The 
+  necessary hardware documentation to fully support the HIL controller 
+  and interface it to the linux-input API is lacking.
 
   Enable this option if you intend to use a HIL keyboard.
 
@@ -18525,6 +18525,150 @@
 
   To use this option, you have to check that the "/proc file system
   support" (CONFIG_PROC_FS) is enabled, too.
+
+Processor family
+CONFIG_PA7100
+  This is the processor type of your CPU. This information is used for
+  optimizing purposes. In order to compile a kernel that can run on
+  all 32-bit PA-RISC processors, you can specify PA7000 here.  If you
+  have a 64-bit machine, you may need to select PA8x00 here and say
+  'y' to '64-bit kernel' below.
+
+  The kernel will not necessarily run on earlier architectures than
+  the one you have chosen, e.g. a PA7200 optimised kernel will run on
+  a PA8000 cpu, but not a PA7000.
+
+  If you don't know what type of CPU you have, you can refer to the
+  Hardware Database at http://hwdb.parisc-linux.org/
+
+64-bit kernel
+CONFIG_PARISC64
+  Selecting this option will build a 64-bit kernel.  Some 64-bit machines
+  require a 64-bit kernel (eg L2000, A500) while other machines don't
+  have 64-bit firmware (eg C360, J200), so you may need to enable 32-bit
+  PDC below if you select this option.  Note that 64-bit userspace is
+  not yet supported but having a 64-bit kernel can improve some memory
+  operations like load, operate and store. Some applications (eg graphics) 
+  might benefit from that depending on what they are doing.
+
+GSC/Gecko bus support
+CONFIG_GSC
+  This option gives to the kernel the capability to manage GSC buses 
+  of HP computers. More than that, if you have systems with GSC slots, 
+  LASI, EISA or Dino (GSCtoPCI) bridge, this option is also compulsory 
+  if you want your box working.
+
+  By default, say Y.
+
+LASI I/O support
+CONFIG_GSC_LASI
+  LASI is one type of controller embedded in HP workstations and 
+  servers. It controls some I/O devices like PS2 keyboard and mouse, 
+  audio or serial interface. The best advice is to keep it in your 
+  configuration, if you are not sure about that point.
+
+WAX support
+CONFIG_GSC_WAX
+  WAX is an EISA bus converter for PA-RISC systems. It can be found in
+  older systems like B/C/D/R-class machines. This option enables this 
+  converter.
+
+GSCtoPCI/DINO PCI support
+CONFIG_GSC_DINO
+  By selecting this item, you add PCI support for Dino PCI Host Bus bridge.
+  PCI devices are sometimes embedded in GSC add-on cards (aka "card-mode 
+  Dino"). Note that only recent systems need it like B132L, C200 but since
+  you can find EISA card-mode dino in 715, it is safer to keep it in your
+  conviguration.
+
+LBA/Elroy PCI support
+CONFIG_PCI_LBA
+  Elroy is a bridge between Ropes bus and PCI on several machines. It can
+  be found on any newer workstations and servers which have 4X-PCI. It 
+  allows the system to communicate with PCI cards. Thus, you should leave 
+  it on especially if you have one of the listed HP machines. 
+
+  By default, say Y.
+
+SuperIO support
+CONFIG_SUPERIO
+  SuperIO is a chip that integrates a good part of I/O for the newest 
+  B/C/J-XXXX workstations. Serial, USB, IDE and Floppy controllers are 
+  built in that chip. That's why you must select it, if your box is 
+  corresponding to those series. 
+
+Chassis LCD and LED support
+CONFIG_CHASSIS_LCD_LED
+  HP boxes have LED or LCD indicator on the front in order to show some 
+  basic information like status for example. With this enabled, you can
+  have this help also available. Also, you can control your LED/LCD 
+  display via the files living in /proc/pdc.
+
+  By default, say Y.
+
+Kernel support for SOM binaries
+CONFIG_BINFMT_SOM
+  SOM (Spectrum Object Model) is a format for libraries and executables 
+  used by HP. Saying Y here will enable your kernel to run SOM binaries.
+  As a result, you could run HP-UX executables.
+
+LASI/ASP builtin parallel-port
+CONFIG_PARPORT_GSC
+  If you have a LASI or ASP controller in your HP box and you want to use 
+  the parallel port, a good idea will be to keep this item in your
+  configuration.
+
+HP Lasi SCSI support
+CONFIG_SCSI_LASI700
+  If you have an old HP system like a 712, you should keep this on.
+  This will enable your SCSI controller and give you access to 
+  SCSI devices. For quite recent computers, you may be able to turn 
+  this off. 
+
+  By default, say Y.
+
+Lasi ethernet
+CONFIG_LASI_82596
+  This option adds the driver for one of most used network chips 
+  integrated in LASI chip. It is also known as Apricot driver. It is 
+  based on an Intel 82596 chip. If you do not know what is your 
+  hardware, it is strongly recommended to keep is on.
+
+Support for Lasi/Dino PS2 port
+CONFIG_GSC_PS2
+  The PS2 connector of the HP boxes looks like a standard PC connector.
+  If you want to use the PS2 keyboard and mouse, you must keep this on.
+  Anyway, some HP workstations and servers have this kind of interfaces
+  but not the ports you can plug in your devices. Thus, the best thing
+  to do anyway is to let this choice turned on.
+
+serial port on GSC support
+CONFIG_SERIAL_GSC
+  For most of the HP servers and for some workstations that do not have 
+  its video card supported yet, you will need to get the console output
+  via the serial port. As a result, you could interact with the box via
+  a VT or a serial cable link to another computer.
+
+STI console
+CONFIG_STI_CONSOLE
+  The Standard Text Interface could correspond to the VGA support for PC.
+  HP developped STI as a mechanism between CPU and graphics devices. 
+  Thus, if you want your console on your screen like any other PC linux
+  does, leave this option on.
+  If you do not have any success with your console output, we advice you
+  to check if you have checked the STI frame buffer option, aka 
+  CONFIG_FB_STI, in your configuration. Some models are happy when the 
+  two of them are enabled and some others prefer to have only this one 
+  only.
+  Anyway, if you failed to have the screen output, you can switch to the 
+  serial console output.
+
+PA Harmony audio driver
+CONFIG_SOUND_HARMONY
+  This option enables the audio part of the LASI controller. Since it is 
+  standard to all the boxes, this option should be set for any 
+  workstation except the newest ones. Servers do not really need audio. 
+  Then, you can unset it.
 
 #
 # A couple of things I keep forgetting:

--------------26A9B85DFCB537BD6F5E9A14--





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From: Sonny Cook <sonny@aspersion.org>
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Subject: [parisc-linux] unaligned access with iptables limit support
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I am trying to set up my b132l as a firewall.  So I compiled up iptables
as kernel modules and tried running my favorite firewall script.  It uses
limit support to keep my logs from overflowing.  At any rate when I try to
enter a rule using limits like so:

iptables -t filter -A LDROP -p tcp -m limit --limit 2/s -j LOG --log-level
info --lo g-prefix "TCP Dropped "

I get this on the console:

iptables(428): unaligned access to 0x4020d0cf at ip=0x401fc767
iptables(428): unaligned access to 0x4020d0d3 at ip=0x401fc76f

The module ipt_limit.o does not get loaded by the kernel autoloader.  Is
supsect the bug is with the iptables program.  I downloaded the source for
the latest version and in attempting to compile it got a linker error.

ld -shared -o extensions/libipt_limit.so extensions/libipt_limit_sh.o
ld: BFD internal error, aborting at ../../bfd/elf32-hppa.c line 939 in
hppa_build_one_stub

ld: Please report this bug.

make: *** [extensions/libipt_limit.so] Error 1

The debian version is 1.2.2 and the downloaded source is 1.2.3.  Has
anyone seen anything like this?

Thanks,
Sonny





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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] unaligned access with iptables limit support
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> iptables -t filter -A LDROP -p tcp -m limit --limit 2/s -j LOG --log-level
> info --lo g-prefix "TCP Dropped "
> 
> I get this on the console:
> 
> iptables(428): unaligned access to 0x4020d0cf at ip=0x401fc767
> iptables(428): unaligned access to 0x4020d0d3 at ip=0x401fc76f

yes, this is a bug in iptables.

> ld -shared -o extensions/libipt_limit.so extensions/libipt_limit_sh.o
> ld: BFD internal error, aborting at ../../bfd/elf32-hppa.c line 939 in
> hppa_build_one_stub
> 
> ld: Please report this bug.
> 
> make: *** [extensions/libipt_limit.so] Error 1
> 
> The debian version is 1.2.2 and the downloaded source is 1.2.3.  Has
> anyone seen anything like this?

it needs to link with gcc instead of with ld.

feel free to file a bug. you can point them to build logs at:
http://buildd.debian.org/fetch.php?&pkg=iptables&ver=1.2.3-2&arch=hppa&stamp=1001284133&file=log&as=raw

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Christian Suder <csuder@cisco.com>
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Subject: [parisc-linux] 735/125 'reliably' hangs during mke2fs
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Hi,

I'm trying to get a 735/125 going using the 0.9.2 install CD. Old, I
know.... Whenever it's time to make the fs I get up to here :

Creating filesystem (for 2.2 kernels only)...
mke2fs 1.20, 25-May-2001 for EXT2 FS 0.5b, 95/08/09
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
91968 inodes, 183808 blocks
9190 blocks (5.00%) reserved for the super user
First data block=0
6 block groups
32768 blocks per group, 32768 fragments per group
15328 inodes per group
Superblock backups stored on blocks: 
        32768, 98304, 163840

Writing inode tables: done                            
Writing superblocks and filesystem accounting information: 

with the cursor behind the last line. 

Any magic boot parameter that might help here ? Is there a 'cheat-sheet'
for everything that can be specified at the boot prompt ? 

By the same token, I've tried to install it on a C110 with the HD on the
FWSCSI. It appears to work but within an hour or two the filesystem gets
severly corrupted. 
I have it running now with 'today's kernel' after reinstalling and getting
the kernel on as early as possible. Fingers crossed....

Any hints and pointers on SCSI issues appreciated,

	Christian 





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From: Christian Suder <csuder@cisco.com>
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Subject: [parisc-linux] Followup: 735/125 hangs...
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FWIW, 

I repartitioned the HD, from boot-swap-root to boot-root-swap. Formatting
the filesystem went until after the message about tune2fs
appears. Powercycled and did not format again but selected 'use existing
fs'. Hangs with : 'ioctl: LOOP_CLR_FD: No such device or address' when
installing the system image. 

Tried the same excercise again and got lots of 

 - block = 4244379656, count = 1
EXT2-fs error (device sd(8,2)): ext2_free_blocks: Freeing blocks not in
datazone - block = 4269604550, count = 1

Hmmm.... saw the same when the C110 had problems. 

Used the same CD on a 712/80 with no problems at all !

	Christian





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Subject: Re: [parisc-linux] Followup: 735/125 hangs...
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Hello,

My 720/50 had similiar problems. I don't know what kind of SCSI chipset
you have, but I needed to add the following kernel command line
parameter to get my SCSI disks to work properly:

sim700=noneg:0xff,nodisc:0xff or sim700=nodisc:0xff

This more or less solved my problems. Writing the superblock info still
took some time (think 10 minutes), but it got it done. :-)

In a message from Richard Hirst a few days ago, when he checked in a new
driver for the 53c700 and 53c710 chips:

The main improvements in this driver are sync transfers (where the scsi
chip allows it) and tagged commands.  Also disconenct/reselect works
properly, so there is no longer any need to boot with sim700=nodisc:0xff
(or similar).

So I guess if you compile the latest kernel, and make a new debian
bootfloppies lifimage to boot from, you should be fine. Alternatively,
the options above might also fix your problems with the LOOP_CTL thingy.

When in doubt, do a network install. :-)

Regards,

Albert

On Fri, 12 Oct 2001, Christian Suder wrote:

> 
> FWIW, 
> 
> I repartitioned the HD, from boot-swap-root to boot-root-swap. Formatting
> the filesystem went until after the message about tune2fs
> appears. Powercycled and did not format again but selected 'use existing
> fs'. Hangs with : 'ioctl: LOOP_CLR_FD: No such device or address' when
> installing the system image. 
> 
> Tried the same excercise again and got lots of 
> 
>  - block = 4244379656, count = 1
> EXT2-fs error (device sd(8,2)): ext2_free_blocks: Freeing blocks not in
> datazone - block = 4269604550, count = 1
> 
> Hmmm.... saw the same when the C110 had problems. 
> 
> Used the same CD on a 712/80 with no problems at all !
> 
> 	Christian
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux




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Subject: Re: [parisc-linux] unaligned access with iptables limit support
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To: Sonny Cook <sonny@aspersion.org>
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On Sat, Oct 13, 2001 at 05:08:12AM +0000, Sonny Cook wrote:
> I am trying to set up my b132l as a firewall.  So I compiled up iptables
> as kernel modules and tried running my favorite firewall script.  It uses
> limit support to keep my logs from overflowing.  At any rate when I try to
> enter a rule using limits like so:
> 
> iptables -t filter -A LDROP -p tcp -m limit --limit 2/s -j LOG --log-level
> info --lo g-prefix "TCP Dropped "

This is prehaps totally unrelated to what you are getting, but I recently
found another bug in iptables in the samr area:

[root@localhost root]# iptables --version
iptables v1.2.3

[root@localhost root]# uname -a
Linux localhost.localdomain 2.4.7-10 #1 Thu Sep 6 17:27:27 EDT 2001 i686 unknown

[root@localhost root]# cat /etc/redhat-release
Red Hat Linux release 7.2 (Enigma)

# Flush the iptables
[root@localhost root]# iptables -F

# Reject all access to port 25 tcp
[root@localhost root]# iptables -A INPUT -p tcp --syn --dport 25 -j REJECT

# Testing the rule. Connect is refused (normal)
[root@localhost root]# telnet 127.0.0.1 25
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused

# Insert a rule that allows on connection per day to the SMTP port.
[root@localhost root]# iptables -I INPUT -p tcp --dport 25 -m limit --limit
+1/day --limit-burst 1 -j ACCEPT

# The connection is let through because of the limit (again normal).
[root@localhost root]# telnet 127.0.0.1 25
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
220 localhost.localdomain ESMTP Sendmail 8.11.6/8.11.6; Thu, 20 Sep 2001+19:50:12 GMT
quit
221 2.0.0 localhost.localdomain closing connection
Connection closed by foreign host.

# Try again, blocked because of limit (normal)
[root@localhost root]# telnet 127.0.0.1 25
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused

# Insert a rule that allows access to port 21 tcp, nothing to do with port 25.
[root@localhost root]# iptables -I INPUT -p tcp --dport 21 -j ACCEPT

# Try to connect again to port 25 and it goes through (weird!)
[root@localhost root]# telnet 127.0.0.1 25
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
220 localhost.localdomain ESMTP Sendmail 8.11.6/8.11.6; Thu, 20 Sep 2001+19:51:19 GMT
quit
221 2.0.0 localhost.localdomain closing connection
Connection closed by foreign host.


So basicly, I have a rule that says only one connection to the smtp port
a day and it works untill I insert a new rule (and that rule doesnt have
to have anything to do with the first one) and by magic it breaks the
first one.

Beware of the limit support :-)

Anyway, if you guys are going to lookat this, it should be nice to
know about this bug also.

-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: [parisc-linux] disks not recognized by new 53c700/53c710 driver
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(was [parisc-linux-cvs] linux rhirst)
Reply-To:=20
In-Reply-To: <200110082146.PAA00640@puffin.external.hp.com>

Hello,

I just gave 2.4.9=20

On Mon, 08 Oct 2001, Richard Hirst wrote:

> CVSROOT:	/home/cvs/parisc
> Module name:	linux
> Changes by:	rhirst	01/10/08 15:46:04
>=20
> Modified files:
> 	.              : Makefile=20
> 	drivers/scsi   : Config.in Makefile=20
> 	arch/parisc/debian-configs: 32 64 default=20
> Added files:
> 	drivers/scsi   : 53c700.c 53c700.h 53c700.scr NCR_D700.c=20
> 	                 NCR_D700.h README.53c700 lasi700.c lasi700.h=20
>=20
> Log message:
> New driver from James Bottomley for 53c700 and 53c710.  Much improved
> over sim700.c, and already mostly in Linus' tree.  Major differences
> are support for sync working where the chip supports it, tagged
> commands, and disconnect/reselect works (sim700 had problems on
> 53c700, requiring that people booted with sim700=3Dnodisc:0xff).
> I've left the old driver in the source for now, just commented out its
> Config question.  Will remove it completely if there are no problems.
> Tested on 712, 715/50, 715/75, B180, C360 (32 and 64 bit kernels).
>=20
>=20
>=20
> _______________________________________________
> parisc-linux-cvs mailing list
> parisc-linux-cvs@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux-cvs

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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: [parisc-linux] disks not recognized by new 53c700/53c710 driver (was [parisc-linux-cvs] linux rhirst)
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Terribly sorry about that message. mutt is acting up. Intended message:

Hello all,

I just gave 2.4.9-pa53 a spin on my 720/50, wanting to see if perhaps
some random phenomena will allow me to complete the installation. The
Debian installer informed me that I had no disks connected, so I went
back and examined the bootup messages. The relevant portions:

=2E..
Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.6.0                 MICROP  1528-15MD1066702
P1                    lan.0000e8-e5fdeb.0.0    dogbert
=2E..
Linux version 2.4.9-pa53 (s13640887@bach.sun.ac.za) (gcc version 3.0.2 2001=
0829
(prerelease)) #2 Sat Oct 13 15:42:01 SAST 2001
=2E..
CPUID   vers 0 rev 0
model   9000/720
=2E..
Kernel command line: HOME=3D/ root=3D/dev/ram console=3DttyS0 TERM=3Dvt102
=2E.. ( don't know if this was there before, but anyway: )
STI byte mode ROM at f8000000, hpa=3Df8000000
STI byte mode ROM, id 26d1488c-40a00499, conforms to spec rev. 8.02
STI device: HPA1924A
=2E..
Found i82596 at 0xf0826000, IRQ 87
82596.c: MAC of HP700 LAN read from EEPROM
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 25 4B E1 IRQ 87.
82596.c $Revision: 1.23 $
SCSI subsystem driver Revision: 1.00
sticonsole_init: searching for STI ROMs
Console: switching to colour STI console 160x64
=2E..

No disks?

In my .config (obtained with make oldconfig) I have:

CONFIG_SCSI=3Dy
CONFIG_BLK_DEV_SD=3Dy
CONFIG_SD_EXTRA_DEVS=3D40
CONFIG_CHR_DEV_ST=3Dy
CONFIG_SR_EXTRA_DEVS=3D2
CONFIG_CHR_DEV_SG=3Dy
CONFIG_SCSI_ZALON=3Dy
CONFIG_SCSI_SYM53C8XX=3Dy
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=3D8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=3D32
CONFIG_SCSI_NCR53C8XX_SYNC=3D20

Did I miss anything or is there something amiss with the driver? :-)

Regards,

Albert

On Mon, 08 Oct 2001, Richard Hirst wrote:

> CVSROOT:	/home/cvs/parisc
> Module name:	linux
> Changes by:	rhirst	01/10/08 15:46:04
>=20
> Modified files:
> 	.              : Makefile=20
> 	drivers/scsi   : Config.in Makefile=20
> 	arch/parisc/debian-configs: 32 64 default=20
> Added files:
> 	drivers/scsi   : 53c700.c 53c700.h 53c700.scr NCR_D700.c=20
> 	                 NCR_D700.h README.53c700 lasi700.c lasi700.h=20
>=20
> Log message:
> New driver from James Bottomley for 53c700 and 53c710.  Much improved
> over sim700.c, and already mostly in Linus' tree.  Major differences
> are support for sync working where the chip supports it, tagged
> commands, and disconnect/reselect works (sim700 had problems on
> 53c700, requiring that people booted with sim700=3Dnodisc:0xff).
> I've left the old driver in the source for now, just commented out its
> Config question.  Will remove it completely if there are no problems.
> Tested on 712, 715/50, 715/75, B180, C360 (32 and 64 bit kernels).

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] disks not recognized by new 53c700/53c710 driver (was [parisc-linux-cvs] linux rhirst)
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> No disks?
>
> In my .config (obtained with make oldconfig) I have:
>
> CONFIG_SCSI=y
> CONFIG_BLK_DEV_SD=y
> CONFIG_SD_EXTRA_DEVS=40
> CONFIG_CHR_DEV_ST=y
> CONFIG_SR_EXTRA_DEVS=2
> CONFIG_CHR_DEV_SG=y
> CONFIG_SCSI_ZALON=y
> CONFIG_SCSI_SYM53C8XX=y
> CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
> CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
> CONFIG_SCSI_NCR53C8XX_SYNC=20
>
> Did I miss anything or is there something amiss with the driver? :-)

I think you missed:

CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
CONFIG_53C700_USE_CONSISTENT=y

You should prefer "make menuconfig". That way you won't
miss such things.

Greetings,
Helge





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From: Albert Strasheim <fullung@ilink.nis.za>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] disks not recognized by new 53c700/53c710 driver (was [parisc-linux-cvs] linux rhirst)
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Hello,

Are you saying disabling the STI console will make the SCSI driver work?
I just mentioned the STI console because I seem to recall Matthew Wilcox
checked in some patches for it since I last tested...?

So, do you still want me to test?

Cheerio,

Albert

On Sat, 13 Oct 2001, Thomas Marteau wrote:

> Hi Albert,
> 
> 	Could try a kernel where you do not select STI console and Generic STI
> frame buffer device support in Console drivers section. To see if it
> does the same thing. If it works I think it could be useful to post to
> the list the solution b/c I think there is a bug somewhere!
> 
> Thomas.




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Hello,

Okay, I'll check this out and report back. Someone should probably fix
up make oldconfig so that it produces a working config again?

Cheerio,

Albert

On Sat, 13 Oct 2001, Helge Deller wrote:

> > No disks?
> >
> > In my .config (obtained with make oldconfig) I have:
> >
> > CONFIG_SCSI=3Dy
> > CONFIG_BLK_DEV_SD=3Dy
> > CONFIG_SD_EXTRA_DEVS=3D40
> > CONFIG_CHR_DEV_ST=3Dy
> > CONFIG_SR_EXTRA_DEVS=3D2
> > CONFIG_CHR_DEV_SG=3Dy
> > CONFIG_SCSI_ZALON=3Dy
> > CONFIG_SCSI_SYM53C8XX=3Dy
> > CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=3D8
> > CONFIG_SCSI_NCR53C8XX_MAX_TAGS=3D32
> > CONFIG_SCSI_NCR53C8XX_SYNC=3D20
> >
> > Did I miss anything or is there something amiss with the driver? :-)
>=20
> I think you missed:
>=20
> CONFIG_SCSI_LASI700=3Dy
> CONFIG_53C700_MEM_MAPPED=3Dy
> CONFIG_53C700_LE_ON_BE=3Dy
> CONFIG_53C700_USE_CONSISTENT=3Dy
>=20
> You should prefer "make menuconfig". That way you won't
> miss such things.
>=20
> Greetings,
> Helge
>=20

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Subject: Re: [parisc-linux] disks not recognized by new 53c700/53c710 driver (was 
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Hi Albert,

	No, I thought that without sti support you could have the prompt and
debug. Anyway, Helge can be also true. Now, the HP Lasi driver is not in
default config. Be sure to add it on your kernel! 

In make menuconfig, it is SCSI support->SCSI low-level drivers->HP LASI
SCSI support for 53c700

Thomas.




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Subject: Re: [parisc-linux] disks not recognized by new 53c700/53c710 driver (was [parisc-linux-cvs] linux rhirst)
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On Sat, Oct 13, 2001 at 04:42:27PM +0200, Helge Deller wrote:
> You should prefer "make menuconfig". That way you won't
> miss such things.

Um?  make oldconfig only prompts you for new options.  it's harder to
miss things with oldconfig than menuconfig, IMO.

-- 
Revolutions do not require corporate support.




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Hello,

Okay, the make menuconfig LASI thingy did the trick. I now get:

SCSI subsystem driver Revision: 1.00
53c700: consistent memory allocation failed
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0
scsi0 : LASI SCSI 53c700
  Vendor: MICROP    Model: 1528-15MD1066702  Rev: DD24
  Type:   Direct-Access                      ANSI SCSI revision: 01 CCS
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sda: 2621688 512-byte hdwr sectors (1342 MB)
Partition check:
 sda: sda1 sda2 sda3

Is it normal for the consitent memory allocation to fail as indicated
above? What does this mean?

Regards,

Albert

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On Saturday 13 October 2001 16:59, Matthew Wilcox wrote:
> On Sat, Oct 13, 2001 at 04:42:27PM +0200, Helge Deller wrote:
> > You should prefer "make menuconfig". That way you won't
> > miss such things.
>
> Um?  make oldconfig only prompts you for new options.  it's harder to
> miss things with oldconfig than menuconfig, IMO.

Hi Matthew,

of course you're right. But if I have a lots of new options
I just too often press only lots of "n" <return>s and miss
the new parts. I know that is not the way it should be done,
but as it seems it's not only me who do it this way....

Helge




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Subject: Re: [parisc-linux] disks not recognized by new 53c700/53c710 driver (was [parisc-linux-cvs] linux rhirst)
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> SCSI subsystem driver Revision: 1.00
> 53c700: consistent memory allocation failed
>
> Is it normal for the consitent memory allocation to fail as indicated
> above? What does this mean?

Hi Albert.

Yes, it's normal that it fails that way on your machine.
It just says, that your machine/CPU needs a "cache-writeback"
command by the cpu before any other chips may access that 
area of memory directly via dma. 
In other words, your machine isn't cache-coherent and this
will be handled automatically by the driver. 
Btw, harmony (sound), lasi_82596 (LAN)  and other drivers have 
the same problem, but mostly don't inform you about that.

Greetings,
Helge





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Hello,

My apologies -- I misunderstood the inner workings of make oldconfig. I
see now that you are right, as always. :-)

Cheerio,

Albert

On Sat, 13 Oct 2001, Matthew Wilcox wrote:

> On Sat, Oct 13, 2001 at 04:42:27PM +0200, Helge Deller wrote:
> > You should prefer "make menuconfig". That way you won't
> > miss such things.
>=20
> Um?  make oldconfig only prompts you for new options.  it's harder to
> miss things with oldconfig than menuconfig, IMO.

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To: Matthew Wilcox <willy@debian.org>
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Matthew Wilcox wrote:
> 
> On Fri, Oct 12, 2001 at 07:42:15PM +0200, joel.soete@freebel.net wrote:
> > Oct 12 17:22:34 palinux2 kernel: scsi0: (6:0) Synchronous at offset 8, period 100ns
> > Oct 12 17:22:34 palinux2 kernel: scsi0 (6:0) New error handler wants to abort
> > command
> > Oct 12 17:22:34 palinux2 kernel: ^I0x12 00 00 00 ff 00
> > Oct 12 17:22:34 palinux2 kernel: scsi0 (6:0) New error handler wants device reset
> > Oct 12 17:22:34 palinux2 kernel: ^I0x12 00 00 00 ff 00
> > Oct 12 17:22:34 palinux2 kernel: scsi0 (6:0) New error handler wants BUS reset,
> > cmd 1006e800
> > Oct 12 17:22:34 palinux2 kernel: ^I0x12 00 00 00 ff 00
> > Oct 12 17:22:34 palinux2 kernel: scsi0: Bus Reset detected, executing command
> > 1006e800, slot 00010520, dsp 00070528[0528]
> > Oct 12 17:22:34 palinux2 kernel:  failing command because of reset, slot
> > 00010520, cmnd 1006e800
> 
> Last time I saw output like this was on a machine whose disc was making
> very painful noises as it attempted to spin up.  Could this be the case
> for your machine?

No, neither the internal (scsi0 (6:0)) neither the external (scsi (3:0)
my hppa linux disk) do not made any noise.
But you have right: it is a long time ago that I boot on this disk (on
which I install the old mklinux for the curiosity), it may be failed
now? I will test it and let you inform.

Joel




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From: Soete Joel <joel.soete@freebel.net>
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Subject: [parisc-linux] Re: Kernel panic with -pa48
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Grant Grundler wrote:
> 
> joel.soete@freebel.net wrote:
> > Hi Grant,
> >
> > I met following problem with pa48 (on a 712/80):
> 
> You might try -pa49.
> 712/80 doesn't have eisa either.
> But I don't expect any devices on 712 to care which HBA they live under
> since they are all "GSC" (mostly under LASI) devices.
> 
> grant

Grant,

Thanks a lot.
May be have you also read my email:
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-October/014108.html

and the strange results I encountered with this -pa49

Thanks again,
	Joel




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From: Christian Suder <csuder@cisco.com>
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Subject: Re: [parisc-linux] Followup: 735/125 hangs...
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Thanks, Albert !

With the boot options I was able to get the base install from an NFS
mounted source (CD still did bail on me close to the finish line...), I
have now yesterdays snapshot with the new SCSI driver running which
appears fine. 

	Christian


On Sat, 13 Oct 2001, Albert Strasheim wrote:

> Hello,
> 
> My 720/50 had similiar problems. I don't know what kind of SCSI chipset
> you have, but I needed to add the following kernel command line
> parameter to get my SCSI disks to work properly:
> 
> sim700=noneg:0xff,nodisc:0xff or sim700=nodisc:0xff
> 
> This more or less solved my problems. Writing the superblock info still
> took some time (think 10 minutes), but it got it done. :-)
> 
> In a message from Richard Hirst a few days ago, when he checked in a new
> driver for the 53c700 and 53c710 chips:
> 
> The main improvements in this driver are sync transfers (where the scsi
> chip allows it) and tagged commands.  Also disconenct/reselect works
> properly, so there is no longer any need to boot with sim700=nodisc:0xff
> (or similar).
> 
> So I guess if you compile the latest kernel, and make a new debian
> bootfloppies lifimage to boot from, you should be fine. Alternatively,
> the options above might also fix your problems with the LOOP_CTL thingy.
> 
> When in doubt, do a network install. :-)
> 
> Regards,
> 
> Albert
> 
> On Fri, 12 Oct 2001, Christian Suder wrote:
> 
> > 
> > FWIW, 
> > 
> > I repartitioned the HD, from boot-swap-root to boot-root-swap. Formatting
> > the filesystem went until after the message about tune2fs
> > appears. Powercycled and did not format again but selected 'use existing
> > fs'. Hangs with : 'ioctl: LOOP_CLR_FD: No such device or address' when
> > installing the system image. 
> > 
> > Tried the same excercise again and got lots of 
> > 
> >  - block = 4244379656, count = 1
> > EXT2-fs error (device sd(8,2)): ext2_free_blocks: Freeing blocks not in
> > datazone - block = 4269604550, count = 1
> > 
> > Hmmm.... saw the same when the C110 had problems. 
> > 
> > Used the same CD on a 712/80 with no problems at all !
> > 
> > 	Christian
> > 
> > 
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 





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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [parisc-linux] Kernel panic with -pa48
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--==_Exmh_-7423799680
Content-Type: text/plain; charset=us-ascii

> Just co -pa49 and boot again but strange behaviour (as with pa45). Here
> the SCSI kernel messages:

I suspect this is probably a cabling/termination problem.  The new driver does 
fast scsi via synchronous negotiation which is much less tolerant of harware 
setup than the old asynchronous SCSI.  You can test this theory out by turning 
off async negotiation in the driver: by recompiling, I'm afraid, I haven't 
made it a config option.

If you apply the attached patch it will suppress the synchronous negotiation.  
If the driver boots your machine with no issues then it's a safe bet you have 
a cabling or termination problem.

Your next problem will be the C3325A drive:  I have one of these and it seems 
to drop tagged commands under heavy load (which annoys the SCSI error handler 
no end).  I was going to ask for it to be added to the SCSI mid-layer black 
list as being unable to handle tags, but I haven't got around to it yet.

James 



--==_Exmh_-7423799680
Content-Type: text/plain ; name="53c700-no-fast.diff"; charset=us-ascii
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Content-Disposition: attachment; filename="53c700-no-fast.diff"

Index: drivers/scsi/53c700.c
===================================================================
RCS file: /home/jejb/CVSROOT/linux/2.4/drivers/scsi/53c700.c,v
retrieving revision 1.1.1.3.6.4
diff -u -r1.1.1.3.6.4 53c700.c
--- drivers/scsi/53c700.c	2001/09/30 15:04:17	1.1.1.3.6.4
+++ drivers/scsi/53c700.c	2001/10/13 19:46:33
@@ -720,6 +720,7 @@
 		NCR_700_writeb(BTB_TIMER_DISABLE, host, CTEST0_REG);
 		NCR_700_writeb(FULL_ARBITRATION | ENABLE_PARITY | PARITY
 			       | AUTO_ATN, host, SCNTL0_REG);
+		hostdata->fast = 0;
 	} else {
 		NCR_700_writeb(BURST_LENGTH_8 | hostdata->dmode_extra,
 			       host, DMODE_700_REG);

--==_Exmh_-7423799680--






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From: Daniel Engstrom <5116@telia.com>
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Subject: Re: [parisc-linux] New scsi driver for 53c700 and 53c710 committed
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Hi, Richard.

On 2001.10.09 00:09 Richard Hirst wrote:
>   I've just added a new scsi driver for 53c700 and 53c710 chips to cvs.

I have some problems with this driver on my 715-50/old installed from the 
0.92 cd.

If I boot multi-user the boot process will stop/hang somewhere between the
"ENtering run level 2" message and "Starting cron"-message. The cont-message
is pretty late in the boot process, infact it is the last message to be printed
before the getty's are supposed to be lanuched.

On the next reboot fsck will consider the filesystem broken enought to put me
in single user mode.

If I boot single-user I can get to the prompt and do some reading and writing 
to the disk,  but if I do some heavy disk I/O (like running bonnie or e2fsck 
on a dirty file system), the system will lock-up.

The lockup I experience is not complete, the box still replies to pings and
anything I type at the (serial) console gets echoed, but I get nowhere with
ctrl-C or wha-tever. 

The old driver still works even with the never kernels.

/Daniel

-- 




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Kernel panic with -pa48
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James Bottomley wrote:
> Your next problem will be the C3325A drive:  I have one of these and it seems
> to drop tagged commands under heavy load (which annoys the SCSI error handler
> no end).  I was going to ask for it to be added to the SCSI mid-layer black 
> list as being unable to handle tags, but I haven't got around to it yet.

Many of the older drives for workstations have issues like this.
Workstation folks couldn't wait for the server folks to finish
testing and issues like this weren't found. That stopped being true
about 5 years ago when 1 and 2 GB (5400rpm) drives came on the market.

In general, drives smaller than 1GB are not reprogammable
and thus can't be upgraded. I don't know if C3325A is upgradeable.
If it is, the firmware for it *might* be on the same ftp site
as platform firmware - see the www.parisc-linux.org FAQ for the URL.
And not sure if there is a utility for linux to download
SCSI device firmware.

grant




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grundler@puffin.external.hp.com said:
> In general, drives smaller than 1GB are not reprogammable and thus
> can't be upgraded. I don't know if C3325A is upgradeable. If it is,
> the firmware for it *might* be on the same ftp site as platform
> firmware - see the www.parisc-linux.org FAQ for the URL. And not sure
> if there is a utility for linux to download SCSI device firmware. 

I believe the fw is upgradeable (if you can find it, it's not on the ftp 
site).  Although, for a SCSI device driver writer, having misbehaving drives 
around to test with can be useful...it's a lot easier than trying to do 
sofware error injection.

Perhaps you could answer some configuration questions I have (which is why I 
was thinking the reported errors were termination or cabling related).  
Richard Hirst got LinuxCare to send me a 712/60 and a 715/50.  Both of these 
appear to have a SCSI bus running through the motherbord to a 50pin ribbon 
cable on one end and an external D50 SCSI-2 connector on the case.  There 
appears to be no termination at all on the motherboard, is that correct?

The 715/50 has slots for 3 SCSI drives along a ribbon cable which is 
terminated at one end.  However, I don't believe the other end would be 
terminated unless I put a D50 SE terminator on the external connector.   Was 
this the way they were usually delivered?

The 712/60 is even stranger: It has one SCSI drive housing and a short ribbon 
cable with no termination.  It looks like the correct configuration for this 
one would be to activate the drive's termination and also put a D50 terminator 
on the external connector?  Unfortunately, the Micropolis drive it came with 
expired in a cloud of smoke when I turned it on.  However, I was able to 
determine that the Micropolis was unterminated, so the internal bus was 
completely unterminated.

What I'm hoping is that they didn't ship this way, they just evolved into 
these anomalous configurations over time as bits fell off and drives were 
replaced.  The problem is that the new lasi700 driver is going to drive the 
SCSI bus (at least for the 53c710 based lasi subsystems) at about twice times 
the speed of the old one and with high REQ/ACK offsets, so what were marginal 
configurations may suddenly become non-functional ones.

At the very least, I suppose I need to add sync and tag disable options to the 
driver.

James






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From: Andreas Deresch <aderesch@fs.tum.de>
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Subject: Re: [parisc-linux] Kernel panic with -pa48
Date: Sun, 14 Oct 2001 17:42:53 +0200 (CEST)
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> The 712/60 is even stranger: It has one SCSI drive housing and a short ribbon
> cable with no termination.  It looks like the correct configuration for this
> one would be to activate the drive's termination and also put a D50 terminator
> on the external connector?  Unfortunately, the Micropolis drive it came with
> expired in a cloud of smoke when I turned it on.  However, I was able to
> determine that the Micropolis was unterminated, so the internal bus was
> completely unterminated.
I don't know about 715, but 712 is supposed to be terminated onboard =>
internal drive not terminated, external branch only terminated when drive
present. (That's what the docs say, too)

ad





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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel panic with -pa48
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   of "Sun, 14 Oct 2001 09:28:54 CDT." <200110141428.f9EESss01949@localhost.localdomain> 
Xref: news.gmane.org gmane.linux.ports.parisc:12643

James Bottomley wrote:
> Both of these appear to have a SCSI bus running through the motherbord
> to a 50pin ribbon cable on one end and an external D50 SCSI-2 connector
> on the case.  There appears to be no termination at all on the motherboard,
> is that correct?

AFAIK, yes - that's correct. The 50-pin (narrow SE SCSI) should be terminated
on the external 50-pin high-density connecter. The 50-in ribbon cable has a
terminator at the "internal" end. It's all one bus.

> The 715/50 has slots for 3 SCSI drives along a ribbon cable which is 
> terminated at one end.

It's intended for 2 HDs and a CD-ROM or SCSI FLoppy.

>  However, I don't believe the other end would be 
> terminated unless I put a D50 SE terminator on the external connector.   Was 
> this the way they were usually delivered?

I think so.

> The 712/60 is even stranger: It has one SCSI drive housing and a short ribbon
> cable with no termination.  It looks like the correct configuration for this 
> one would be to activate the drive's termination and also put a D50 terminato
>   r 
> on the external connector?

Yes. But it works w/o termination too since the cable is vry short
if nothing external is connected.

grant




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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problems with onboard 715/100 framebuffer
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Hi,

I have a small problem with my 715/100 (updated to PDC version 1.6), the 
onboard graphics doesn't work. I always get a blank screen and when booting
linux the sti debug output prints a screen size of 0x0 :-( Since I got this
machine with HCRX8Z installed it might be, that the onboard graphics has 
been disabled, but I haven't found to enable it again.

Maybe someone here could give me a hint either how to enable the onboard
framebuffer or a way how to find out, what's wrong (maybe the video ram
is bad or whatever).

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] Kernel panic with -pa48]
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James Bottomley wrote:
> 
> > Just co -pa49 and boot again but strange behaviour (as with pa45).
Here
> > the SCSI kernel messages:
> 
> I suspect this is probably a cabling/termination problem.  The new
driver does
> fast scsi via synchronous negotiation which is much less tolerant of
harware
> setup than the old asynchronous SCSI.  You can test this theory out by
turning
> off async negotiation in the driver: by recompiling, I'm afraid, I
haven't
> made it a config option.
> 
> If you apply the attached patch it will suppress the synchronous
negotiation.
> If the driver boots your machine with no issues then it's a safe bet
you have
> a cabling or termination problem.
> 
> Your next problem will be the C3325A drive:  I have one of these and
it seems
> to drop tagged commands under heavy load (which annoys the SCSI error
handler
> no end).  I was going to ask for it to be added to the SCSI mid-layer
black
> list as being unable to handle tags, but I haven't got around to it
yet.
> 
> James
> 

Hello James,

Unfortunately I have'nt anymore -pa49 sources to check your patch but I still 
have the binary and a scsi terminator (which was removed for other test).

So I reboot with the vmlinux-2.4.9-pa49 end ending the scsi chain by the 
terminator and it works fine.

Thanks a lot for remarks and help,
        joel.
 

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Subject: [parisc-linux] Xfree86 failled with -pa57
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Hi all,

Just finished some test of -pa57.

It seems to work very fine as well as on my 712 Model (with scsi terminator) as 
on B180L model (Diagnostic Led working and logo appears well on screen top). 
Disconect-reconnect kbd does not present any problem.

I try now to start xdm (which works more or less with some previous kernel 
release). This time it failed with following message (same on each model):
XFree86 Version 4.1.0 / X Window System
(protocol Version 11, revision 0, vendor release 6510)
Release Date: 2 June 2001
	If the server is older than 6-12 months, or if your card is
	newer than the above date, look for a newer version before
	reporting problems.  (See http://www.XFree86.Org/FAQ)
Build Operating System: Linux 2.4.0-pa51 parisc64 [ELF] 
(==) Log file: "/var/log/XFree86.0.log", Time: Mon Oct 15 15:07:57 2001
(==) Using config file: "/etc/X11/XF86Config-4"
Markers: (--) probed, (**) from config file, (==) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) ServerLayout "Simple Layout"
(**) |-->Screen "Screen 1" (0)
(**) |   |-->Monitor "lcd"
(**) |   |-->Device "fbdev"
(**) |-->Input Device "Mouse1"
(**) |-->Input Device "Keyboard1"
(**) Option "AutoRepeat" "500 30"
(**) Option "XkbRules" "xfree86"
(**) XKB: rules: "xfree86"
(**) Option "XkbModel" "pc101"
(**) XKB: model: "pc101"
(**) Option "XkbLayout" "us"
(**) XKB: layout: "us"
(==) Keyboard: CustomKeycode disabled
(**) FontPath set to 
"/usr/X11R6/lib/X11/fonts/misc/,/usr/X11R6/lib/X11/fonts/75dpi/:unscaled,/usr/X1
1R6/lib/X11/fonts/100dpi/:unscaled,/usr/X11R6/lib/X11/fonts/Type1/,/usr/X11R6/li
b/X11/fonts/Speedo/,/usr/X11R6/lib/X11/fonts/75dpi/,/usr/X11R6/lib/X11/fonts/100
dpi/"
(**) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(++) using VT number 7

(WW) Cannot open APM
(EE) No OS PCI support available
(II) Addressable bus resource ranges are
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
	[1] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) OS-reported resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) OS-reported resource ranges after removing overlaps with PCI:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) All system resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
	mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
(II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,
	pm2, pm, 300sx, 500tx, mx, delta
	S3VIdentify
(II) S3VIRGE: driver (version 1.6.0) for S3 ViRGE chipsets: virge, 86C325,
	virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
	86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
	trio 3d/2x, 86C362, 86C368
(II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
	SIS300, SIS630, SIS540
(II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
	Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
	Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
	TwisterK
(II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, cyber9388,
	cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
	tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
	providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
	cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
	cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
	ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
	ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
	3dfx Voodoo3, 3dfx Voodoo5
(II) FBDev: driver for framebuffer: fbdev, afb
(II) ATI: ATI driver (version 6.3.6) for chipsets: ati
(II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
	ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
	ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
	ATI Rage 128 Pro PF (AGP), ATI Rage 128 Mobility LE (PCI),
	ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
	ATI Rage 128 Mobility ML (AGP)
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
	ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
	ATI Radeon VE (AGP)
(II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,
	imstt3d
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) v4l driver for Video4Linux
	S3VProbe begin
(II) FBDev(0): using default device
(II) Running in FRAMEBUFFER Mode
(**) FBDev(0): Depth 8, (--) framebuffer bpp 8
(==) FBDev(0): Default visual is PseudoColor
(==) FBDev(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDev(0): Hardware:  (vidmem: 2048k)
(II) FBDev(0): Checking Modes against framebuffer device...
(II) FBDev(0): 	mode "640x480" ok
(II) FBDev(0): Checking Modes against monitor...
(--) FBDev(0): Virtual size is 640x480 (pitch 640)
(**) FBDev(0): Default mode "640x480": 25.2 MHz (scaled from 0.0 MHz), 31.5 kHz, 
60.0 Hz
(II) FBDev(0): Modeline "640x480"   25.20  640 656 752 800  480 490 492 525 
-hsync -vsync
(++) FBDev(0): DPI set to (100, 100)
(**) FBDev(0): Using "Shadow Framebuffer"

Fatal server error:
AddScreen/ScreenInit failed for driver 0


When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to submit@bugs.debian.org.


On the B180 I use the same XF86config (may be now outdated) as on 712/80, the 
one from Thomas Bogendoerfer available at:

http://lists.parisc-linux.org/pipermail/parisc-linux/2001-June/012928.html

Thanks in advance for help,
        Joel

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> (EE) No OS PCI support available

Do you have PCI support enabled in your kernel?

Richard





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On Mon, Oct 15, 2001 at 04:49:03PM +0100, Richard Hirst wrote:
> > (EE) No OS PCI support available
> 
> Do you have PCI support enabled in your kernel?

shouldn't matter. I bet the framebuffer runs in a different resolution than
it's configured in XF86Config. Since the current stifb doesn't support
mode switching, I've made the check very strict to not allow it. So
the boot time resolution and bpp must match that from XF86Config.

Thomas.





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Hi Richard,

Quoting Richard Hirst <rhirst@linuxcare.com>:

> > (EE) No OS PCI support available
> 
> Do you have PCI support enabled in your kernel?
> 
> Richard
> 
> 
> 
Yes:
CONFIG_PCI=yes
CONFIG_PCI_LBA=yes
CONFIG_PCI_NAMES=yes

As 'make oldconfig' done (answer no yo EISA support: not need; yes for LASI 
53C700 support)

Joel

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From: Scott Ashcroft <scott.ashcroft@talk21.com>
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Subject: [parisc-linux] LED device moves around on B160L
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Something weird is going on with the address of the LED device on my
B160L.

Here's a grep of the logs I've got:

elson:/var/log# zgrep "Linux version\|LED" messages* 
messages:Oct 15 15:55:42 nelson kernel: Linux version 2.4.9-pa57
(root@nelson) (gcc version 3.0.2 20010922 (Debian prerelease)) #16 Mon
Oct 15 15:48:33 BST 2001
messages:Oct 15 15:55:42 nelson kernel: LED display at f0190000
registered
messages.0:Oct  9 14:58:13 nelson kernel: Linux version 2.4.9-pa45
(root@nelson) (gcc version 3.0.2 20010922 (Debian prerelease)) #13 Tue
Oct 9 14:30:37 BST 2001
messages.0:Oct  9 14:58:13 nelson kernel: LED display at ffd0c000
registered
messages.0:Oct 10 13:34:23 nelson kernel: Linux version 2.4.9-pa45
(root@nelson) (gcc version 3.0.2 20010922 (Debian prerelease)) #13 Tue
Oct 9 14:30:37 BST 2001
messages.0:Oct 10 13:34:23 nelson kernel: LED display at ffd0c000
registered
messages.0:Oct 13 13:10:09 nelson kernel: Linux version 2.4.9-pa52
(root@nelson) (gcc version 3.0.2 20010922 (Debian prerelease)) #14 Sat
Oct 13 12:42:38 BST 2001
messages.0:Oct 13 13:10:09 nelson kernel: LED display at f0190001
registered
messages.1.gz:Sep 30 12:54:48 nelson kernel: Linux version 2.4.9-pa29
(root@nelson) (gcc version 3.0.2 20010825 (Debian prerelease)) #12 Sun
Sep 30 12:26:28 BST 2001
messages.1.gz:Sep 30 12:54:48 nelson kernel: PDC reported no LCD or LED.
messages.1.gz:Sep 30 12:54:48 nelson kernel: LED display at ffd0c000
registered

I think ffd0c000 is the correct address looks like it broke between pa45
and pa52.

Any thing I can do to debug this?

Cheers,
Scott






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Hi Thomas,

Quoting Thomas Bogendoerfer <tsbogend@elvis.franken.de>:

> On Mon, Oct 15, 2001 at 04:49:03PM +0100, Richard Hirst wrote:
> > > (EE) No OS PCI support available
> > 
> > Do you have PCI support enabled in your kernel?
> 
> shouldn't matter. I bet the framebuffer runs in a different resolution
> than
> it's configured in XF86Config. Since the current stifb doesn't support
> mode switching, I've made the check very strict to not allow it. So
> the boot time resolution and bpp must match that from XF86Config.
> 
> Thomas.
> 
Sorry for NEWBIES (as I am in term of X configuration) what means bpp?

Well I found what I have to change in my config file to make xdm works.
Just a problem:
After the xdm start everything seems to works fine (right colors, mouse 
working,...). Then I login: ok the pointer still work, I can work in the default 
xterm,...
But when I exit mouse does not move any more and I had to restart xdm.

(Um.., on my B180 I thing have to update Xfree 4.0 to 4.1 the mouse does not 
work at all but gpm well)

Any idea?

Thanks for all great job and in advance for additional help,
        Joel



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Subject: Re: [parisc-linux] Xfree86 failled with -pa57
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On Monday 15 October 2001 19:14, joel.soete@freebel.net wrote:
> Sorry for NEWBIES (as I am in term of X configuration) what means bpp?

bpp = bits per pixel. 
You should enter "8" here, which defaults to 2^8 = 256 colors.

> Well I found what I have to change in my config file to make xdm works.
> Just a problem:
> After the xdm start everything seems to works fine (right colors, mouse
> working,...). Then I login: ok the pointer still work, I can work in the
> default xterm,...
> But when I exit mouse does not move any more and I had to restart xdm.
>
> (Um.., on my B180 I thing have to update Xfree 4.0 to 4.1 the mouse does
> not work at all but gpm well)

I assume you have a PS/2 mouse.
If so, disable gpm before starting xdm ("/etc/init.d/gpm stop").

Greetings,
Helge




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Quoth joel.soete@freebel.net:
> Sorry for NEWBIES (as I am in term of X configuration) what means bpp?

Bits per pixel, or colour depth.  8bpp is 256 colours, 16bpp is
'thousands' and 32bpp is 'millions' of colours.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




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On Mon, Oct 15, 2001 at 05:46:30PM +0100, Scott Ashcroft wrote:
> Something weird is going on with the address of the LED device on my
> B160L.

I can reproduce this on an A180 here.  I'll look into it tomorrow; thanks.

-- 
Revolutions do not require corporate support.




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On Sat, Oct 13, 2001 at 11:32:16PM +0200, Daniel Engstrom wrote:
> 
> Hi, Richard.
> 
> On 2001.10.09 00:09 Richard Hirst wrote:
> >   I've just added a new scsi driver for 53c700 and 53c710 chips to cvs.
> 
> I have some problems with this driver on my 715-50/old installed from the 
> 0.92 cd.

We've had one problem report so far that was fixed by adding a scsi
terminator.  The new driver runs fast sync scsi transfers, while the
old one ran slower async.  Poorly terminated scsi busses are much more
likely to fail with the new driver.  James Bottomley posted a patch to
disable sync transfers a few days ago, could you try that and see if
it helps?  Also let us know what you system has by way of scsi termination.

Thanks,
  Richard




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To: Helge Deller <deller@gmx.de>
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Hello Helge,

Quoting Helge Deller <deller@gmx.de>:

> On Monday 15 October 2001 19:14, joel.soete@freebel.net wrote:
> > Sorry for NEWBIES (as I am in term of X configuration) what means
> bpp?
> 
> bpp = bits per pixel. 
> You should enter "8" here, which defaults to 2^8 = 256 colors.

Thanks a lot.

> 
> > Well I found what I have to change in my config file to make xdm
> works.
> > Just a problem:
> > After the xdm start everything seems to works fine (right colors,
> mouse
> > working,...). Then I login: ok the pointer still work, I can work in
> the
> > default xterm,...
> > But when I exit mouse does not move any more and I had to restart
> xdm.
> >
> > (Um.., on my B180 I thing have to update Xfree 4.0 to 4.1 the mouse
> does
> > not work at all but gpm well)
> 
> I assume you have a PS/2 mouse.

You have right,

> If so, disable gpm before starting xdm ("/etc/init.d/gpm stop").
> 

But sorry this as no effect:
on 712 pointer still fix in midle of the screen after an exit,
on b180 pointer still fixed all the time (even after an update to xfree 4.1.0-7)
(just after re-install of gpm: gpm.com contains as default repeat_type=ms3 then 
I have a pointer moving only at the bottum of the screen (same behaviour as the 
712 before I comment repeat_type)?)

Is it possible to config XFree so that it takes mouse input from gpm?

Thanks for help and ideas,
        joel


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Subject: [parisc-linux] Installing...
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Hi All:

I have a 735/99 which I'd like to install the Linux port onto, among other
things to verify a new kernel graciously sent to me by Richard Hirst to test
the FW-SCSI port. However, I have a problem, and that is, no CD and no
network...

So, how can I get Linux onto this machine? I have a couple of external SCSI
disks and an x86 box with scsi, so I can use a CD image to create a bootable
disk, but how to do this? Any advice gratefully received...

Cheers,
Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - 4069
ph:  (07) 3327 4685     fax:  (07) 3327 4455
email:  m.vandewerken@cat.csiro.au




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Hi all

> Is it possible to config XFree so that it takes mouse input from gpm?
Yes via /dev/gpmdata but I won't advice you to do so.
> 
I launched X via startx on my B132L. I can launch many xterm but I can't
exec xedit. I am looking why.
Perhaps, you are stuck b/c of software and not hardware or kernel
problems.

Try to do it via startx, Thomas.
ESIEE Team




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From: Thomas Marteau <marteaut@esiee.fr>
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Subject: Re: [parisc-linux] Installing...
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Hi Matthew,

	Once upon a time, we worked with the same equipment as you've got and
we published some filesystem tarballs. In addition, we wrote a script
called sysintall that does everything well if you can plug an externel
disc on a X86.

The useful links are:
http://www.parisc-linux.org/
http://www.esiee.fr/puffin/
http://mkhppa1.esiee.fr/download.html#fs

Good luck and if you need any help, please mail me, Thomas.
ESIEE Team




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Subject: RE: [parisc-linux] Installing...
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Thanks Thomas (so fast!!),

Are these filesystems still current? I've got an old nfs filesystem from
about that time, too, which I've installed before, so I have done it all
before, but I wasn't sure if the 'old' filesystem would work with the newer
kernels (and newer glibc?)

What I would prefer to do, if I can get some instruction, is to use the .iso
image to write to a disk (which I would make bootable - how?), which I could
then use to install to a second external disk.

I guess I should just 'give it a go', and see what happens.

Thanks  again,

Cheers,
Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - 4069
ph:  (07) 3327 4685     fax:  (07) 3327 4455
email:  m.vandewerken@cat.csiro.au


> -----Original Message-----
> From: Thomas Marteau [mailto:marteaut@esiee.fr]
> Sent: Tuesday, 16 October 2001 7:45 PM
> To: Matt.VanDeWerken@csiro.au
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Installing...
> 
> 
> Hi Matthew,
> 
> 	Once upon a time, we worked with the same equipment as 
> you've got and
> we published some filesystem tarballs. In addition, we wrote a script
> called sysintall that does everything well if you can plug an externel
> disc on a X86.
> 
> The useful links are:
> http://www.parisc-linux.org/
> http://www.esiee.fr/puffin/
> http://mkhppa1.esiee.fr/download.html#fs
> 
> Good luck and if you need any help, please mail me, Thomas.
> ESIEE Team
> 




From - Thu Nov 08 21:19:54 2018
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From: Helge Deller <helge.deller@sap.com>
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Subject: Re: [parisc-linux] Installing...
Date: Tue, 16 Oct 2001 13:46:15 +0200
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Hi Matt,

if I'm right you could just use your i386 machine to
copy the iso image of the palinux install cd directly to an 
empty scsi harddrive (e.g. with "dd if=palinux_cd.iso of=/dev/sdX").
Then connect that drive to your pa-box, do a "boot search" in the
bootmenu and boot directly from that harddrive (e.g. "boot scsi.5.0").

Helge

On Tuesday 16 October 2001 11:51, Matt.VanDeWerken@csiro.au wrote:
> Thanks Thomas (so fast!!),
>
> Are these filesystems still current? I've got an old nfs filesystem from
> about that time, too, which I've installed before, so I have done it all
> before, but I wasn't sure if the 'old' filesystem would work with the newer
> kernels (and newer glibc?)
>
> What I would prefer to do, if I can get some instruction, is to use the
> .iso image to write to a disk (which I would make bootable - how?), which I
> could then use to install to a second external disk.
>
> I guess I should just 'give it a go', and see what happens.
>
> Thanks  again,
>
> Cheers,
> Matthew van de Werken
> Electronics Engineer
> CSIRO Exploration & Mining - Gravity Group
> 1 Technology Court - Pullenvale - Qld - 4069
> ph:  (07) 3327 4685     fax:  (07) 3327 4455
> email:  m.vandewerken@cat.csiro.au
>
> > -----Original Message-----
> > From: Thomas Marteau [mailto:marteaut@esiee.fr]
> > Sent: Tuesday, 16 October 2001 7:45 PM
> > To: Matt.VanDeWerken@csiro.au
> > Cc: parisc-linux@lists.parisc-linux.org
> > Subject: Re: [parisc-linux] Installing...
> >
> >
> > Hi Matthew,
> >
> > 	Once upon a time, we worked with the same equipment as
> > you've got and
> > we published some filesystem tarballs. In addition, we wrote a script
> > called sysintall that does everything well if you can plug an externel
> > disc on a X86.
> >
> > The useful links are:
> > http://www.parisc-linux.org/
> > http://www.esiee.fr/puffin/
> > http://mkhppa1.esiee.fr/download.html#fs
> >
> > Good luck and if you need any help, please mail me, Thomas.
> > ESIEE Team
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
_______________________________________________________________________

THE BEST RUN E-BUSINESSES RUN SAP
_______________________________________________________________________

Helge Deller                            email: helge.deller@sap.com
SAP AG Walldorf/Baden, Germany         Phone: +49 6227  7-67783
LinuxLab                               Fax  : +49 6227 78-67783

SAP LinuxLab support address: linux@sap.com




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Hello Thomas,

Thomas Marteau wrote:
> 
> Hi all
> 
> > Is it possible to config XFree so that it takes mouse input from gpm?
> Yes via /dev/gpmdata but I won't advice you to do so.

Yes, I find it back simply on my i386 (but at home) on which it works
fine that is why I though to this idea but I will follow your advice.

> >
> I launched X via startx on my B132L. I can launch many xterm but I can't
> exec xedit. I am looking why.

What's about a window manager the X default is twm (if I do not make
error) but it depends of menu which is not yet available for hppa? Can
we already replace it by fvwm to install later Xfce?

> Perhaps, you are stuck b/c of software and not hardware or kernel
> problems.
> 
> Try to do it via startx, Thomas.
> ESIEE Team

I do not yet try, so I will do soon and let you inform.

Thanks for advice and good idea,
	Joel




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C'est un message de format MIME en plusieurs parties.

------=_NextPart_000_01A2_01C1566F.8CEC2790
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	charset="iso-8859-1"
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Hello,

I have a HP 712/100, I will install my HP station on Adsl gateway. For =
this, i need make a pptp or pppoe connexion.

When, the debian install kernel 2.4.0-32, when i start pppoe or pptp =
connexion, the pppd is launch and just after all system is block. With =
the last kernel version (2.4.9-pa45) downloaded on paris-linux site. =
When, i start pptp connexion, he has a kernel panic.

I have check the mailing-list archive. And i haven't found a begin of =
solution.

Maybe, do you have see this problem under the past ?

Thanks St=E9phane DUTOT.

------=_NextPart_000_01A2_01C1566F.8CEC2790
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.3315.2870" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hello,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I have a HP 712/100, I will install my =
HP station=20
on Adsl gateway. For this, i need make a pptp or pppoe =
connexion.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>When, the debian install kernel =
2.4.0-32, when i=20
start pppoe or pptp connexion, the pppd is launch and just after all =
system is=20
block. With the last kernel version (2.4.9-pa45) downloaded on =
paris-linux site.=20
When, i start pptp connexion, he has a kernel panic.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I have check the mailing-list archive. =
And i=20
haven't found a begin of solution.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Maybe, do you have see this problem =
under the past=20
?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks St=E9phane =
DUTOT.</FONT></DIV></BODY></HTML>

------=_NextPart_000_01A2_01C1566F.8CEC2790--





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From: paul lee <wbm111us@yahoo.com>
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Subject: [parisc-linux] Help - Serial console problem
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Hello,

I could not access a C200 workstation via serial
console. Could someone please give me some insight?
I use hyperterminal on Win 2000. The settings are
VT100, 9600, 8-N-1 and Xon/Xoff.

Thanks a lot.

__________________________________________________
Do You Yahoo!?
Make a great connection at Yahoo! Personals.
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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] Help - Serial console problem
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> I could not access a C200 workstation via serial
> console. Could someone please give me some insight?
> I use hyperterminal on Win 2000. The settings are
> VT100, 9600, 8-N-1 and Xon/Xoff.

try turning off flow control.

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] PPTP and PPPOE under Debian HPPA Linux.
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Xref: news.gmane.org gmane.linux.ports.parisc:12666

=?iso-8859-1?Q?DUTOT_St=E9phane?= wrote:
> When, the debian install kernel 2.4.0-32, when i start pppoe or pptp =
> connexion, the pppd is launch and just after all system is block. With =
> the last kernel version (2.4.9-pa45) downloaded on paris-linux site. =
> When, i start pptp connexion, he has a kernel panic.

I was using ppp in the past to connect via a c3k and filed
the following bug:
	http://bugs.parisc-linux.org/db/13/132.html

I haven't tried again recently.

grant




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Subject: Re: [parisc-linux] Help - Serial console problem
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paul lee wrote:
> I could not access a C200 workstation via serial
> console. Could someone please give me some insight?
> I use hyperterminal on Win 2000. The settings are
> VT100, 9600, 8-N-1 and Xon/Xoff.

The settings are correct.
It's possible the serial cable isn't wired correctly
or the C200 isn't trying to use serial port1.

grant




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Subject: Re: [parisc-linux] Help - Serial console problem
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* Grant Grundler (grundler@puffin.external.hp.com) [011016 11:44]:
> paul lee wrote:
> > I could not access a C200 workstation via serial
> > console. Could someone please give me some insight?
> > I use hyperterminal on Win 2000. The settings are
> > VT100, 9600, 8-N-1 and Xon/Xoff.
> 
> The settings are correct.
> It's possible the serial cable isn't wired correctly
> or the C200 isn't trying to use serial port1.
> 

make sure that on the c200 that you set you console as serial.

ie, issue this command on the firmware command line:

	path con serial_1

which will change the console graphics to be displayed on you 1st
serial port (the top one).




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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] LED device moves around on B160L
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On Mon, Oct 15, 2001 at 05:46:30PM +0100, Scott Ashcroft wrote:
> Something weird is going on with the address of the LED device on my
> B160L.
[...]
> I think ffd0c000 is the correct address looks like it broke between pa45
> and pa52.

Looks like this change was intentional.  Here's what's happening:

led_init calls pdc_chassis_info to find the address of the LCD display.
This then calls register_led_driver, passing it that address that you
have above.  Then the lasi driver calls register_led_driver again, but
it's already been initialised, so it returns silently.  This all seems
correct to me.

If PDC is telling us this address, then it ought to be correct... right?
I don't know anything about the LED/LCD stuff yet, so I hope someone
who does can explain why this is correct.

-- 
Revolutions do not require corporate support.




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On Wed, 10 Oct 2001, Matthew Wilcox wrote:
> Anyone want to review a patch that makes EISA work?  I've only
> tested it on a 715/75 with a Mongoose chip; but Wax is
> supposed to be programmatically identical.  The patch is
> 18k, so rather than post it to the list, it's available from
> ftp://puffin.external.hp.com/pub/parisc/src/eisa.diff

I've updated my 715/100 to -pa57, which gives me startup messages that the
Mirage Was EISA BA is recognized. I plugged in a 3Com 3c597 NIC as a test
card; what I get from the PDC is that an unconfigured EISA card is in and
it'll ignore it, then on boot the NIC is seen as eth0. Unfortunately, when
DHCP tries to pull an address, I get errors that command 0x5800 and 0x2804
didn't complete (twice as a pair), plus a 0x3002 didn't complete when the
DHCP request is sent. Never does pull an IP, but does show as up and
active on eth0. Tonight I'm going to try plugging a static IP into it and
see what happens...

If someone working this wants some dmesg output or anything feel free to
holler...





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Hi Tom,

> I've updated my 715/100 to -pa57, which gives me startup messages that the
> Mirage Was EISA BA is recognized.

Similar for 720. Here i got the message:

Mongoose EISA Adapter found at 0xfc000000

An IBM Auto 16/4 Token Ring card is recognized, but doesn't work (instead, 
i randomly get a stack dump during the module load).

Another comment:

parisc_ksyms.c is missing the exports for memcpy_toio and memcpy_fromio.

Cheers,
Jochen






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On Tue, Oct 16, 2001 at 09:46:01PM +0200, Jochen Friedrich wrote:
> An IBM Auto 16/4 Token Ring card is recognized, but doesn't work (instead, 
> i randomly get a stack dump during the module load).

Hmm.. could you try with the driver built in?  People have been reporting
that modules aren't working any more.

> parisc_ksyms.c is missing the exports for memcpy_toio and memcpy_fromio.

OK, that's easily fixed.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] LED device moves around on B160L
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On Tue, Oct 16, 2001 at 07:51:38PM +0100, Matthew Wilcox wrote:
> On Mon, Oct 15, 2001 at 05:46:30PM +0100, Scott Ashcroft wrote:
> > Something weird is going on with the address of the LED device on my
> > B160L.
> [...]
> > I think ffd0c000 is the correct address looks like it broke between pa45
> > and pa52.
> 
> Looks like this change was intentional.  Here's what's happening:
> 
> led_init calls pdc_chassis_info to find the address of the LCD display.
> This then calls register_led_driver, passing it that address that you
> have above.  Then the lasi driver calls register_led_driver again, but
> it's already been initialised, so it returns silently.  This all seems
> correct to me.
> 
> If PDC is telling us this address, then it ought to be correct... right?
> I don't know anything about the LED/LCD stuff yet, so I hope someone
> who does can explain why this is correct.

The correct address seems to be f0190001. I've verified this by checking
that the LEDs work when that address gets detected.
The lasi driver tries to register ffd0c000 but as you say it gets ignored.
Don't know why the PDC returns f0190000 every so often.

Thanks for looking,
Scott




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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] GSC & EISA devices and pci_alloc_consistent
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Looking at the 3c59x driver, it attempts to allocate host memory that
the card can access by DMA with:

        vp->rx_ring = pci_alloc_consistent(pdev, sizeof(struct boom_rx_desc) * RX_RING_SIZE
                                           + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
                                           &vp->rx_ring_dma);

For EISA devices, pdev is NULL.  So pci_alloc_consistent (on EISA-capable
boxes; Astro-based boxes can ignore all this) can check for pdev being
NULL and set up the I/O Map so that the EISA bus can access this chunk
of ram.

But there's a problem.  Currently our specific drivers (lasi_82596, sim700,
et al) call pci_alloc_consistent with a NULL pci_dev.  And that causes a
different problem.  On machines with ccio (C, J, D, K, R) we need to know
which IOC the device is under (currently we assume the first... which is why
some machines HPMC early on).

I think the solution to this is to create a fake struct pci_dev that our
drivers hand to pci_alloc_consistent.  Then we have:

PCXL, L2:
	if (pci_dev == NULL) return wax_alloc_consistent();
	else kmalloc()

ccio:
	if (pci_dev == NULL) return wax_alloc_consistent();
	ioc = find_ioc(pci_dev);
	...

astro/elroy systems remain unchanged.

The only question is how/where to obtain this pci_dev, and how to give
it to the drivers which need it.

-- 
Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] GSC & EISA devices and pci_alloc_consistent
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Matthew Wilcox wrote:
> I think the solution to this is to create a fake struct pci_dev that our
> drivers hand to pci_alloc_consistent.

In order to use one interface, perhaps dma_ops should be a field
in struct pci_hba_data.
We could then
#define pci_alloc_consistent(p, s, a)	\
	(p->sys_data->dma_ops->alloc_consistent)(p, s, a)

(with a bit of casting magic in there)

The fake pdev's points to the correct OPS in the first place.
And systems which don't have EISA or GSC support wouldn't need
this and could continue to use the original method:

#define pci_alloc_consistent(p, s, a)   hppa_dma_ops->alloc_consistent(p,s,a)


> Then we have:
> 
> PCXL, L2:
> 	if (pci_dev == NULL) return wax_alloc_consistent();
> 	else kmalloc()
> 
> ccio:
> 	if (pci_dev == NULL) return wax_alloc_consistent();
> 	ioc = find_ioc(pci_dev);
> 	...
> 
> astro/elroy systems remain unchanged.

I don't like this for performance reasons.
Branches on PCX-U systems are 15+ cycles if predicated wrong.
With this, we've added a branch and a function call where
we really only want to make one function call.

> The only question is how/where to obtain this pci_dev, and how to give
> it to the drivers which need it.

I think it has to be during the regular buswalk for that bus.
(either EISA or GSC).
The HBA managing the bus walk will know which dma_ops need to be used.

One idea is the either make pci_dev the first part of the EISA/GSC struct
(which you've suggested before) or allocate a new pci_dev and have a
pointer to it from the parisc_device struct. I'd like to see more thoughts
on this from others.

grant




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Subject: Re: [parisc-linux] GSC & EISA devices and pci_alloc_consistent
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On 2001.10.16 22:32 Matthew Wilcox wrote:
> I think the solution to this is to create a fake struct pci_dev that our
> drivers hand to pci_alloc_consistent.  Then we have:
> 
> PCXL, L2:
> 	if (pci_dev == NULL) return wax_alloc_consistent();
> 	else kmalloc()
> 
> ccio:
> 	if (pci_dev == NULL) return wax_alloc_consistent();
> 	ioc = find_ioc(pci_dev);
> 	...
> 
> astro/elroy systems remain unchanged.
> 
> The only question is how/where to obtain this pci_dev, and how to give
> it to the drivers which need it.

We could add it to struct parisc_device. Then it could be setup as required
in alloc_pa_dev() from the IODC/PDC data (assuming that one can tell where
the device is located from that data)

/Daniel
-- 




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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] Help - Serial console problem
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Hello,

I think the problem has to do with the hardware handshake.
The silly M$ OS has the problem, that it expects correct
settings of the hardware handshake lines, although hardware
handshake is not used. The same is true for the default BIOS
(int 14h) driver. On Linux, for example, this problem is
not present.

The PC under any Microsoft system or under BIOS (int 14h)
control does not send any character, if the CTS line (pin
5 on the D-SUB-25) is active. A linux PC used via serial
console on a Win2000 system is working, as the Linux PC
activates the lines, although it is not using them. 

So sum up: Windows expects on the input side an active
CTS to send. Linux does not require this line active,
but activates the output for a machine on the other side,
who needs the output active. 

The HP workstation and server (so my HP 55E 9000/856) do
not activate the handshake line, so the CTS pin on the
Win2000 side is inactive. Is was not possible for my to
activate the handshake lines on the HP server via `stty'.

The most simple method to get it working:
Make a special cable with a 3-wire conection to the HP
machine (TXD, RXD, GND) and solder two bridges on the
Win2000 side in the connector:
	for 25-pin:  	4 <-> 5
			6 <-> 20

	for 9-pin:	7 <-> 8
			4 <-> 6

This should work then ....


With friendly regards
	Christoph P.


Grant Grundler wrote:
> 
> paul lee wrote:
> > I could not access a C200 workstation via serial
> > console. Could someone please give me some insight?
> > I use hyperterminal on Win 2000. The settings are
> > VT100, 9600, 8-N-1 and Xon/Xoff.
> 
> The settings are correct.
> It's possible the serial cable isn't wired correctly
> or the C200 isn't trying to use serial port1.
> 
> grant
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at





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> > I have some problems with this driver on my 715-50/old installed from the 
> > 0.92 cd.
> 
> We've had one problem report so far that was fixed by adding a scsi
> terminator. 
Well I have terminators at both ends, the external one is an active terminator 
and the internal on is the original HP part. 
I also tried to remov the external CD from the bus to day but it had no effect.

> The new driver runs fast sync scsi transfers, while the old one ran slower
> async. 
The 715 i have have a vanilla 53c700 chip and as far as I can tell this chip 
supports only async transfers. The driver will not enable sync tranfers unless 
you have at least a 53c700-66 device.

> Poorly terminated scsi busses are much more likely to fail with the new driver.  
> James Bottomley posted a patch to disable sync transfers a few days ago, 
> could you try that and see if it helps?  
This patch will only disable sync transfers if you have a 53c710, I changed it to
disable sync tranfsers regardless of the chip in question. It did not make things 
any  better, though (as one would expect considering the capabilities of my chip). 

> Also let us know what you system has by way of scsi termination.
See above. I have two 3G Quantum drives on the bus and until today I had a dual speed
Toshiba CDROM in an external enclosure.

I have enabled debugging in the 53c700 driver, whith this debugging the driver seems 
to stay alive longer that without debuging. Infact it has yet to lockup after running 
bonnie for 18 minutes (I booted an nfs root and mounted the scsi disk maunaly). I guess
the debuging printk's removed the lockup. I just rebooted in to the nfs root with a new 
kernel where the only change is the removal of the debug output, and this kernel dies after
a while (~10min) running bonnie. Please advise. :)

/Daniel

-- 




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From: Jochen Friedrich <jochen@scram.de>
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Subject: Re: [parisc-linux] EISA support
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Hi Matthew,

> Hmm.. could you try with the driver built in?  People have been reporting
> that modules aren't working any more.

Looks a bit better now:

ibmtr.c: v1.3.57   8/ 7/94 Peter De Schrijver and Mark Swanson
v2.1.125 10/20/98 Paul Norton    <pnorton@ieee.org>
v2.2.0   12/30/98 Joel Sloan     <jjs@c-me.com>
v2.2.1   02/08/00 Mike Sullivan  <sullivam@us.ibm.com>
v2.2.2   07/27/00 Burt Silverman <burts@us.ibm.com>
v2.4.0   03/01/01 Mike Sullivan <sullivan@us.ibm.com>
tr0: ISA P&P Auto 16/4 Adapter found
tr0: using irq 9, PIOaddr a20, 16K shared RAM.
tr0: Hardware address : 00:04:AC:35:AE:E7
tr0: Shared RAM paging enabled. Page size: 16K Shared Ram size 63K
tr0: Maximum Receive Internet Protocol MTU 16Mbps: 16344, 4Mbps: 6104
tr1: Could not grab PIO range. Halting driver.
tr2: Could not grab PIO range. Halting driver.
tr3: Could not grab PIO range. Halting driver.
tr4: Could not grab PIO range. Halting driver.
tr5: Could not grab PIO range. Halting driver.
tr6: Could not grab PIO range. Halting driver.
tr7: Could not grab PIO range. Halting driver.

It recognizes the adapter correctly, but then the driver seems to find 
some "shadow devices" which it tries to configure and, of course, fails to 
do so...

However, the device still doesn't work:

hp720:~# ifconfig tr0 1.1.1.1
SIOCSIFFLAGS: Resource temporarily unavailable

This *might* have to do with interrupts, though...

Cheers,
Jochen





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On Wed, Oct 17, 2001 at 12:26:22AM +0200, Jochen Friedrich wrote:
> tr0: ISA P&P Auto 16/4 Adapter found
> tr0: using irq 9, PIOaddr a20, 16K shared RAM.
> tr0: Hardware address : 00:04:AC:35:AE:E7
> tr0: Shared RAM paging enabled. Page size: 16K Shared Ram size 63K
> tr0: Maximum Receive Internet Protocol MTU 16Mbps: 16344, 4Mbps: 6104

That's cool.

> This *might* have to do with interrupts, though...

Maybe.  I'm not sure that interrupts 8-15 work; may need to program the
intel chipset to do it properly.

-- 
Revolutions do not require corporate support.




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Hi,

while working a getting X running I already found a mismatch between
kernel and glibc structs for SysV shared memory. I thought, that I fixed
that, but I just fixed the needed part for X. Yesterday I tried to find
out why Mozilla just locks up without showing any sign of life. I've
found, that shared mem struct is still broken and semaphores and msg
queue structs are also broken. The kernel structs are aligned the way
they are, because this allows us to use the same structs for 32 and 64bit
kernels (my change to shmbuf.h already has broken 64bit kernels). But
the glibc headers don't match them. I see two ways to solve this:

1. Change the kernel structs to match the current glibc structs

    Works for 32 bit kernel, but we need ugly code for 64 bit
    kernels (we would need to word swap 64bit values)

2. Change the glibc structs and back out my last commit of shmbuf.h

   Would break binary compatibility for applications using SysV IPC
   shmctl (*_STAT) syscalls. But it would avoid any problems with
   64bit kernels and a maybe comming 64 bit userland. And even 32 bit 
   kernel with 64 bit time_t will find a more sane enviroment

As you might guess going the second way, seems to be the right, because
breaking binary compatibilty now, isn't that big issue, because all the
stuff we have right now, is available in source and easy compilable.
This could change, when there are commercial applications for Linux/Parisc.
But right now, we seem to have a problem building a new glibc (why ?),
so doing it immidiatly isn't that easy.

I've attached a patch, which implements the first way, which breaks 64bit 
kernels. With this patch the nspr testsuite passes all the semaphore tests,
which failed without the change. I could commit that patch, but I believe
it's the wrong way.

Thomas.

Index: include/asm-parisc/msgbuf.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/msgbuf.h,v
retrieving revision 1.3
diff -u -r1.3 msgbuf.h
--- include/asm-parisc/msgbuf.h	2001/02/27 00:48:51	1.3
+++ include/asm-parisc/msgbuf.h	2001/10/16 00:24:05
@@ -13,18 +13,18 @@
 
 struct msqid64_ds {
 	struct ipc64_perm msg_perm;
+	__kernel_time_t msg_stime;	/* last msgsnd time */
 #ifndef __LP64__
 	unsigned int   __pad1;
 #endif
-	__kernel_time_t msg_stime;	/* last msgsnd time */
+	__kernel_time_t msg_rtime;	/* last msgrcv time */
 #ifndef __LP64__
 	unsigned int   __pad2;
 #endif
-	__kernel_time_t msg_rtime;	/* last msgrcv time */
+	__kernel_time_t msg_ctime;	/* last change time */
 #ifndef __LP64__
 	unsigned int   __pad3;
 #endif
-	__kernel_time_t msg_ctime;	/* last change time */
 	unsigned int  msg_cbytes;	/* current number of bytes on queue */
 	unsigned int  msg_qnum;	/* number of messages in queue */
 	unsigned int  msg_qbytes;	/* max number of bytes on queue */
Index: include/asm-parisc/sembuf.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/sembuf.h,v
retrieving revision 1.3
diff -u -r1.3 sembuf.h
--- include/asm-parisc/sembuf.h	2001/02/27 00:48:51	1.3
+++ include/asm-parisc/sembuf.h	2001/10/16 00:23:32
@@ -13,14 +13,14 @@
 
 struct semid64_ds {
 	struct ipc64_perm sem_perm;		/* permissions .. see ipc.h */
+	__kernel_time_t	sem_otime;		/* last semop time */
 #ifndef __LP64__
 	unsigned int	__pad1;
 #endif
-	__kernel_time_t	sem_otime;		/* last semop time */
+	__kernel_time_t	sem_ctime;		/* last change time */
 #ifndef __LP64__
 	unsigned int	__pad2;
 #endif
-	__kernel_time_t	sem_ctime;		/* last change time */
 	unsigned int	sem_nsems;		/* no. of semaphores in array */
 	unsigned int	__unused1;
 	unsigned int	__unused2;
Index: include/asm-parisc/shmbuf.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/shmbuf.h,v
retrieving revision 1.4
diff -u -r1.4 shmbuf.h
--- include/asm-parisc/shmbuf.h	2001/09/29 16:40:09	1.4
+++ include/asm-parisc/shmbuf.h	2001/10/16 00:23:09
@@ -14,18 +14,18 @@
 struct shmid64_ds {
 	struct ipc64_perm	shm_perm;	/* operation perms */
 	size_t			shm_segsz;	/* size of segment (bytes) */
+	__kernel_time_t		shm_atime;	/* last attach time */
 #ifndef __LP64__
 	unsigned int		__pad1;
 #endif
-	__kernel_time_t		shm_atime;	/* last attach time */
+	__kernel_time_t		shm_dtime;	/* last detach time */
 #ifndef __LP64__
 	unsigned int		__pad2;
 #endif
-	__kernel_time_t		shm_dtime;	/* last detach time */
+	__kernel_time_t		shm_ctime;	/* last change time */
 #ifndef __LP64__
 	unsigned int		__pad3;
 #endif
-	__kernel_time_t		shm_ctime;	/* last change time */
 	__kernel_pid_t		shm_cpid;	/* pid of creator */
 	__kernel_pid_t		shm_lpid;	/* pid of last operator */
 	unsigned int		shm_nattch;	/* no. of current attaches */



-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]




From - Thu Nov 08 21:19:55 2018
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Subject: [parisc-linux] new glibc dpatch
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due to a few people hassling me, i've created a new hppa patch for glibc.
it incorporates a couple of changes Carlos posted to the list and adds a
couple of diffs of my own.  i've sent it to BenC for the 2.2.4-4 release
of glibc, which he assures me is imminent.

You can find it at
ftp://puffin.external.hp.com/pub/parisc/src/glibc22-hppa.dpatch

have fun.  it's still building on paer.d.o, but i would expect it to
fail to build in the same place as before.

-- 
Revolutions do not require corporate support.




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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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> 
> As you might guess going the second way, seems to be the right, because
> breaking binary compatibilty now, isn't that big issue, because all the
> stuff we have right now, is available in source and easy compilable.
> This could change, when there are commercial applications for Linux/Parisc.
> But right now, we seem to have a problem building a new glibc (why ?),
> so doing it immidiatly isn't that easy.
> 
> I've attached a patch, which implements the first way, which breaks 64bit 
> kernels. With this patch the nspr testsuite passes all the semaphore tests,
> which failed without the change. I could commit that patch, but I believe
> it's the wrong way.
> 
> Thomas.
>

The second way is the best way.
"El nuevo" GCC causes broken binary compatibility anyway, so no worries.

I think we'll be recompiling all of our applications many times over
before we are stable ;)

I have the assembly for ld sitting beside me (waiting for my coffee break
to trace assembly).

If you want to help, you can try to compile glibc-2.2.4-2 for hppa.
Having more than one person look at it can be better. The latest glibc
for hppa is glibc-2.2.3-8?

It seems like a problem in the compiler, since we don't even get to running
anything important before it barfs (literally about 60 instructions in 
_dl_start before an assert fails). 

What is the problem? Don't know. Looking at assembly in hopes it jumps out.
My collection of annotated PA-RISC assembly instructions is helping :}

I have glibc compiled with -O1, since IMHO it makes the assembly saner.

c.




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As it turns out there was a binutils bug that seems to be causing the
glibc build failures. it was also affecting mips. the binutils bug is
fixed in the upcoming (tomorrow) -3 release.

glibc is building on my box now. I will upload RSN.

Thanks to Ryan Murray <rmurray@debian.org> for the heads up!

For those of you interested in looking at glibc, there are some warnings
in atomicity.h (we don't have a hppa-specific one) and some of the
linuxthreads tests are failing. Patches will be much appreciated :)

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: Re: [parisc-linux] new glibc dpatch
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> 
> due to a few people hassling me, i've created a new hppa patch for glibc.
> it incorporates a couple of changes Carlos posted to the list and adds a
> couple of diffs of my own.  i've sent it to BenC for the 2.2.4-4 release
> of glibc, which he assures me is imminent.
> 

That's my name!

> You can find it at
> ftp://puffin.external.hp.com/pub/parisc/src/glibc22-hppa.dpatch
> 
> have fun.  it's still building on paer.d.o, but i would expect it to
> fail to build in the same place as before.

Looking through the patch changes and comparing to mine.
(The build has begun)

Just a comment about your changes to ./sysdeps/ia64/dl-fptr.c

=====
--- glibc22-hppa.dpatch	Tue Oct 16 20:52:02 2001
+++ glibc22-hppa.dpatch.mw	Tue Oct 16 21:05:27 2001
@@ -1135,7 +1135,7 @@
      unsigned int npages;		/* # of pages to allocate */
  #ifdef _LIBC_REENTRANT
 -    volatile int lock;
-+    __atomic_lock_t lock;
++    static __atomic_lock_t lock = __ATOMIC_LOCK_INIT;
      sigset_t full_sigset;
  #endif
      /* the next to members MUST be consecutive! */
=====

Should the lock be static and initialized? Comment?

c.




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> As it turns out there was a binutils bug that seems to be causing the
> glibc build failures. it was also affecting mips. the binutils bug is
> fixed in the upcoming (tomorrow) -3 release.
> 
> glibc is building on my box now. I will upload RSN.
> 
> Thanks to Ryan Murray <rmurray@debian.org> for the heads up!
> 
> For those of you interested in looking at glibc, there are some warnings
> in atomicity.h (we don't have a hppa-specific one) and some of the
> linuxthreads tests are failing. Patches will be much appreciated :)
>

This is excellent!

Where can I get the details on the binutils bug?
 
I've read the bug-binutils and binutils-cvs and I don't
see anything out of the ordinary (though it's easy to lose track).

c.




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On Wed, Oct 17, 2001 at 12:14:53AM -0400, Carlos O'Donell Jr. wrote:
> Just a comment about your changes to ./sysdeps/ia64/dl-fptr.c
> 
> =====
> --- glibc22-hppa.dpatch	Tue Oct 16 20:52:02 2001
> +++ glibc22-hppa.dpatch.mw	Tue Oct 16 21:05:27 2001
> @@ -1135,7 +1135,7 @@
>       unsigned int npages;		/* # of pages to allocate */
>   #ifdef _LIBC_REENTRANT
>  -    volatile int lock;
> -+    __atomic_lock_t lock;
> ++    static __atomic_lock_t lock = __ATOMIC_LOCK_INIT;
>       sigset_t full_sigset;
>   #endif
>       /* the next to members MUST be consecutive! */
> =====

I'm not sure what meaning static would have in this context.  It doesn't
have to be initialised because every arch other than PA defines an
unlocked lock to be 0.  If it gets initialised, it gets put in .data
(instead of .bss), even if you're initialising it to 0.  Stupid, I know.

-- 
Revolutions do not require corporate support.




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> This is excellent!
> 
> Where can I get the details on the binutils bug?
>  
> I've read the bug-binutils and binutils-cvs and I don't
> see anything out of the ordinary (though it's easy to lose track).

actually it was a Debian-binutils specific bug. I'm not sure if it's
documented in any of the public lists. Ryan was working with the
maintainers directly.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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> > 
> > =====
> > --- glibc22-hppa.dpatch	Tue Oct 16 20:52:02 2001
> > +++ glibc22-hppa.dpatch.mw	Tue Oct 16 21:05:27 2001
> > @@ -1135,7 +1135,7 @@
> >       unsigned int npages;		/* # of pages to allocate */
> >   #ifdef _LIBC_REENTRANT
> >  -    volatile int lock;
> > -+    __atomic_lock_t lock;
> > ++    static __atomic_lock_t lock = __ATOMIC_LOCK_INIT;
> >       sigset_t full_sigset;
> >   #endif
> >       /* the next to members MUST be consecutive! */
> > =====
> 
> I'm not sure what meaning static would have in this context.  It doesn't
> have to be initialised because every arch other than PA defines an
> unlocked lock to be 0.  If it gets initialised, it gets put in .data
> (instead of .bss), even if you're initialising it to 0.  Stupid, I know.
>

My bad. The entire struct is defined as static.
The static identifier was to prevent external modifcation of the value.
However since it's encased in a "static struct local" it's not an issue.

True. Any initialized value needs to be shipped into .data, and we
begin to see some ugly .data bloat (even if the user is just specifying
zero anyway...)


I think I'm going to get some sleep now ... to many "my bad" in one 
day ^__^;;;

c.




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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] Xfree86 failled with -pa57
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Hello Thomas,

> Thomas Marteau wrote:
> > 
> > Hi all
> > 
> > > Is it possible to config XFree so that it takes mouse input from gpm?
> > Yes via /dev/gpmdata but I won't advice you to do so.
> 
> Yes, I find it back simply on my i386 (but at home) on which it works
> fine that is why I though to this idea but I will follow your advice.
> 
> >
> I launched X via startx on my B132L. I can launch many xterm but I can't
> exec xedit. I am looking why.
> 
> What's about a window manager the X default is twm (if I do not make
> error) but it depends of menu which is not yet available for hppa? Can
> we already replace it by fvwm to install later Xfce?
> 
> > Perhaps, you are stuck b/c of software and not hardware or kernel
> > problems.
> > 
> > Try to do it via startx, Thomas.
> > ESIEE Team
> 
> I do not yet try, so I will do soon and let you inform.

Sorry Thomas it does not work more successfully (with or without gpm running, 
with or without gpmdata). But what could be the small difference between b132 
and b180 (processor clock excepted)?

(Changing mouse doesn't help)
(There is no more (EE) message in XFree86.0.log (or xdm.log). No message, no 
syslog and no kern.log errors)

What can I do to debug this problem?


Thanks again,
	Joel

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Hi palinuxers,

The PA RISC/Linux ftp site has moved. The new location is,

ftp://ftp.parisc-linux.org/

and is also available via http at,

http://ftp.parisc-linux.org/

It has been cleaned up and slightly rearranged to make it less confusing.
puffin.external.hp.com is no longer home to the archive. Sorry for the 
breakage, but the move to the ftp name will allow us greater flexibility to 
move the archive in the future. It's also a good excuse to move things around 
to a better layout.

Please update your links accordingly.
Please report any references to the old site so we can fix them.
Report any other problems to ftpmaster@ftp.parisc-linux.org

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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Subject: Betr.: [parisc-linux] WARNING ftp site moved ->
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>Hi palinuxers,
>
>The PA RISC/Linux ftp site has moved. The new location is,
>
>ftp://ftp.parisc-linux.org/=20
>
Has the CVS-server also moved?

Greetings,
Jurriaan





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Subject: Re: Betr.: [parisc-linux] WARNING ftp site moved -> 
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Xref: news.gmane.org gmane.linux.ports.parisc:12693

"Jurriaan Kalkman" writes...

> Has the CVS-server also moved?

Not yet, hopefully later this week. When it does I will post a script to munge 
your checked out cvs trees so you don't have to check out from scratch.

Stay tuned...

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation






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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] New scsi driver for 53c700 and 53c710 committed
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	James Bottomley <James.Bottomley@HansenPartnership.com>
To: Daniel Engstrom <5116@telia.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:12694

On Wed, Oct 17, 2001 at 12:08:33AM +0200, Daniel Engstrom wrote:
> 
> > > I have some problems with this driver on my 715-50/old installed from the 
> > > 0.92 cd.
> > 
> > We've had one problem report so far that was fixed by adding a scsi
> > terminator. 
> Well I have terminators at both ends, the external one is an active terminator 
> and the internal on is the original HP part. 
> I also tried to remov the external CD from the bus to day but it had no effect.
> 
> > The new driver runs fast sync scsi transfers, while the old one ran slower
> > async. 
> The 715 i have have a vanilla 53c700 chip and as far as I can tell this chip 
> supports only async transfers. The driver will not enable sync tranfers unless 
> you have at least a 53c700-66 device.

Yes, I think you are right there.

> > Also let us know what you system has by way of scsi termination.
> See above. I have two 3G Quantum drives on the bus and until today I had a dual speed
> Toshiba CDROM in an external enclosure.
> 
> I have enabled debugging in the 53c700 driver, whith this debugging the driver seems 
> to stay alive longer that without debuging. Infact it has yet to lockup after running 
> bonnie for 18 minutes (I booted an nfs root and mounted the scsi disk maunaly). I guess
> the debuging printk's removed the lockup. I just rebooted in to the nfs root with a new 
> kernel where the only change is the removal of the debug output, and this kernel dies after
> a while (~10min) running bonnie. Please advise. :)

I don't think 18 mins with no lockup against 10 mins with lockup is
conclusive really, given that the debugging will have slowed things
down considerably.  How long have you run bonnie for with the old
driver?  I'd like to see that run for say 1 hour without lockups
before we assumed the new driver was causing a problem.

When it fails, I'd expect the scsi layer to time out any active
commands and retry.  Is there any evidence of it doing that, or
is there no console output at all?

Richard





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ok, i've moved the patches from /src to /patches.  there's a lot of
really really old stuff in /src which i'm tempted to delete.  i don't
think we need egcs-2.9-hppa-991112.tar.{gz,bz2} any more, for example.
parisc-linux-src-19991019.tar.gz is probably not of much interest any more
either (that's probably kernel 2.2 based...).  anyone still interested
in dpkg-src-20000824.tar.gz either?

-- 
Revolutions do not require corporate support.




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From: Averell Eisner <a_eisner@eisner.com>
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Subject: [parisc-linux] HP Corporate Support
Date: Wed, 17 Oct 2001 09:13:12 -0400
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FYI

> FRAMINGHAM, Mass., Oct 16, 2001 (BUSINESS WIRE) -- IDG World Expo
> announced today that Carly Fiorina, chairman and CEO of Hewlett-Packard
> Company, will present the opening keynote address at the upcoming 
> LinuxWorld Conference & Expo, held January 29 - February 1, 2002 at 
> New York City's Jacob K. Javits Convention Center. Sanjay Kumar, 
> president and CEO of Computer Associates, and William Zeitler, senior 
> vice president and group executive of IBM's Server Group, will also 
> present keynotes at the event. 

-- 
Averell




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Subject: Re: [parisc-linux] New scsi driver for 53c700 and 53c710 committed
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To: Richard Hirst <rhirst@linuxcare.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:12697

This one looks like it might be the second new feature of the driver: tag 
command queuing.

Could you post the boot messages of the failure case (or at least the device 
identifications and whether the driver has enabled TCQ [message like scsi1: 
(5:0) Enabling Tag Command Queuing)].

Thanks,

James







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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: [parisc-linux] Documentation PARISC 2.0
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PARISC'ers,

Does anyone have the PA-RISC 2.0 Architecture and Instruction
Set Reference Manual in pdf format? (or ps format)

I have the PA-RISC 1.1 docs, but the 2.0 docs seem to be 
available only as online html.

c.




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From: Randolph Chung <randolph@tausq.org>
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> Does anyone have the PA-RISC 2.0 Architecture and Instruction
> Set Reference Manual in pdf format? (or ps format)
> 
> I have the PA-RISC 1.1 docs, but the 2.0 docs seem to be 
> available only as online html.

dunno about pdf, but there's a PA2.0 architecture book (dead tree kind). 
It's out of print but you can order it by special order from places 
like FatBrain.  It's definitely a good reference.

looks like HP reorganized some of the web pages and some of the links
from http://www.parisc-linux.org/documentation/index.html are out of
date... can someone fix them? 

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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Xref: news.gmane.org gmane.linux.ports.parisc:12700

"Carlos O'Donell Jr." wrote:
> Does anyone have the PA-RISC 2.0 Architecture and Instruction
> Set Reference Manual in pdf format? (or ps format)

Like randolph observed, docs.hp.com has been re-org'd.
I did find help for pa-risc at:
http://dsportal.eservices.hp.com/dspp/tech/tech_TechTypeListingPage_IDX/1,1704,10403,00.html

It does seem to offer docs in pdf format.

hth,
grant




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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] glibc update
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glibc 2.2.4-3 has been uploaded to Debian's incoming direction and
should be installed in today's archive run.

it was lightly tested by lamont and myself before upload... please do
report any problems you find.

note that after i sent out my email yesterday about glibc, we ran into
some other obstacles... 

1. the glibc i uploaded is actually built with a fairly old binutils
(version 2.11.90.0.7-2.0.1). There could well be many binutils bug fixes 
since then, but at least for this case it lets us build glibc without 
the segfaults we see with the newer binutils

2. the newest binutils (2.11.92.0.5-3), also in incoming, doesn't appear
to address the glibc build issue as i originally thought. we still get
ld.so segfaults as Carlos has observed earlier. Perhaps someone (Carlos,
Alan, Rob?) can look at the binutils changes since then can see what
broke?

3. with the glibc build (using old binutils) some of the linuxthreads
tests are failing. in particular there's one case where it seems to get
into a deadlock. i left it running overnight and it's still stuck ... 
i don't know if this has always been broken though.

Build logs for #3 and #2 above can be found at:

#3: http://people.debian.org/~tausq/glibc.build.log2
#2: http://people.debian.org/~tausq/glibc.build.log5

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] Documentation PARISC 2.0
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Xref: news.gmane.org gmane.linux.ports.parisc:12702

Grant Grundler wrote:
> It does seem to offer docs in pdf format.

I just saw that everything but that doc is offered as pdf.
I've left feedback to the site and encourage others who
want the pdf version to do the same.

thanks,
grant




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Quoth Carlos O'Donell Jr.:
> PARISC'ers,
> 
> Does anyone have the PA-RISC 2.0 Architecture and Instruction
> Set Reference Manual in pdf format? (or ps format)
> 
> I have the PA-RISC 1.1 docs, but the 2.0 docs seem to be 
> available only as online html.
> 
> c.

It may not be as nice as the Official HP stuff, but in Linux you can
roll your own PDF documents from the online html using html2ps and
ps2pdf from the html2ps and gs packages in Debian, respectively.  It's
not Adobe Distiller but the result is pretty good.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."




From - Thu Nov 08 21:19:57 2018
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Subject: [randolph@tausq.org: [parisc-linux] glibc update]
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R,

>1. the glibc i uploaded is actually built with a fairly old binutils
>(version 2.11.90.0.7-2.0.1). There could well be many binutils bug fixes 
>since then, but at least for this case it lets us build glibc without 
>the segfaults we see with the newer binutils

I'll see about giving it a try on my 712/60 and 715/50's

>2. the newest binutils (2.11.92.0.5-3), also in incoming, doesn't appear
>to address the glibc build issue as i originally thought. we still get
>ld.so segfaults as Carlos has observed earlier. Perhaps someone (Carlos,
>Alan, Rob?) can look at the binutils changes since then can see what
>broke?

Eventually I'll get that assembly trace done.

>3. with the glibc build (using old binutils) some of the linuxthreads
>tests are failing. in particular there's one case where it seems to get
>into a deadlock. i left it running overnight and it's still stuck ... 
>i don't know if this has always been broken though.

This reminds me, in general I keep forgetting to add the location of
/xxx/glibc-2.2.4/hppa-linux/obj to LD_LIBRARY_PATH. This nips some of
the tests in the bud since ld goes looking for the wrong library.

>Build logs for #3 and #2 above can be found at:
>#3: http://people.debian.org/~tausq/glibc.build.log2
>#2: http://people.debian.org/~tausq/glibc.build.log5

Have you tried running the tests by hand and seeing what the output is?

What is the output of running:
/home/randolph/gcc-3.0/glibc-2.2.4/hppa-linux/obj/math/test-fenv.out

c.




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From: paul lee <wbm111us@yahoo.com>
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Subject: Thanks - Re: [parisc-linux] Help - Serial console problem
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To: Christoph Plattner <christoph.plattner@gmx.at>,
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Hi,

Thank you all very much! The problem has been solved: 
I re-wire  the serial cable as Christoph said and it
works very well.


--- Christoph Plattner <christoph.plattner@gmx.at>
wrote:
> Hello,
> 
> I think the problem has to do with the hardware
> handshake.
> The silly M$ OS has the problem, that it expects
> correct
> settings of the hardware handshake lines, although
> hardware
> handshake is not used. The same is true for the
> default BIOS
> (int 14h) driver. On Linux, for example, this
> problem is
> not present.
> 
> The PC under any Microsoft system or under BIOS (int
> 14h)
> control does not send any character, if the CTS line
> (pin
> 5 on the D-SUB-25) is active. A linux PC used via
> serial
> console on a Win2000 system is working, as the Linux
> PC
> activates the lines, although it is not using them. 
> 
> So sum up: Windows expects on the input side an
> active
> CTS to send. Linux does not require this line
> active,
> but activates the output for a machine on the other
> side,
> who needs the output active. 
> 
> The HP workstation and server (so my HP 55E
> 9000/856) do
> not activate the handshake line, so the CTS pin on
> the
> Win2000 side is inactive. Is was not possible for my
> to
> activate the handshake lines on the HP server via
> `stty'.
> 
> The most simple method to get it working:
> Make a special cable with a 3-wire conection to the
> HP
> machine (TXD, RXD, GND) and solder two bridges on
> the
> Win2000 side in the connector:
> 	for 25-pin:  	4 <-> 5
> 			6 <-> 20
> 
> 	for 9-pin:	7 <-> 8
> 			4 <-> 6
> 
> This should work then ....
> 
> 
> With friendly regards
> 	Christoph P.
> 
> 
> Grant Grundler wrote:
> > 
> > paul lee wrote:
> > > I could not access a C200 workstation via serial
> > > console. Could someone please give me some
> insight?
> > > I use hyperterminal on Win 2000. The settings
> are
> > > VT100, 9600, 8-N-1 and Xon/Xoff.
> > 
> > The settings are correct.
> > It's possible the serial cable isn't wired
> correctly
> > or the C200 isn't trying to use serial port1.
> > 
> > grant
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> >
>
http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 
> -- 
>
-------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at
> 


__________________________________________________
Do You Yahoo!?
Make a great connection at Yahoo! Personals.
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Subject: [parisc-linux] Problems installing a 715/100 - Reboots right after the 'Set defa
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* BOOTING FROM CD-ROM *
=20
Any ideas?
We have tried on two different 715/100 machines. Same thing happens.=20
(Booted OK on a B132L)
=20
We also tried upgrading the firmware to 1.6, did not help either...
=20
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Frode
=20
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<body lang=3DNO-BOK link=3Dblue vlink=3Dpurple =
style=3D'tab-interval:35.4pt'>

<div class=3DSection1>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>* BOOTING FROM CD-ROM *<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Any ideas?<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>We have tried on two
different 715/100 machines. Same thing happens. =
<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>(Booted OK on a =
B132L)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></spa=
n></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>We also tried =
upgrading the
firmware to 1.6, did not help either...<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></spa=
n></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></spa=
n></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Frode<o:p></o:p></span=
></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></spa=
n></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></spa=
n></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Times New Roman"><span =
lang=3DEN-GB
style=3D'font-size:10.0pt;mso-ansi-language:EN-GB;mso-no-proof:yes'>____=
__W=E4rtsil=E4
Norway___________________________<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Times New Roman"><span =
lang=3DEN-GB
style=3D'font-size:10.0pt;mso-ansi-language:EN-GB;mso-no-proof:yes'>5420=
 </span></font><st1:place><st1:City><font
  size=3D2><span lang=3DEN-GB =
style=3D'font-size:10.0pt;mso-ansi-language:EN-GB;
  mso-no-proof:yes'>RUBBESTADNESET</span></font></st1:City><font =
size=3D2><span
 lang=3DEN-GB =
style=3D'font-size:10.0pt;mso-ansi-language:EN-GB;mso-no-proof:yes'>,
 </span></font><st1:country-region><font size=3D2><span lang=3DEN-GB
  =
style=3D'font-size:10.0pt;mso-ansi-language:EN-GB;mso-no-proof:yes'>NORW=
AY</span></font></st1:country-region></st1:place><font
size=3D2><span lang=3DEN-GB =
style=3D'font-size:10.0pt;mso-ansi-language:EN-GB;
mso-no-proof:yes'><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Times New Roman"><span =
lang=3DEN-GB
style=3D'font-size:10.0pt;mso-ansi-language:EN-GB;mso-no-proof:yes'><o:p=
>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Times New Roman"><span =
lang=3DEN-GB
style=3D'font-size:10.0pt;mso-ansi-language:EN-GB;mso-no-proof:yes'>____=
__Frode
Marton Meling________________________<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Times New Roman"><span =
lang=3DEN-GB
style=3D'font-size:10.0pt;mso-ansi-language:EN-GB;mso-no-proof:yes'>Syst=
em Consultant<span
style=3D'mso-tab-count:1'>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =
</span><o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-indent:35.4pt'><font size=3D2
face=3D"Times New Roman"><span lang=3DEN-GB =
style=3D'font-size:10.0pt;mso-ansi-language:
EN-GB;mso-no-proof:yes'>Direct<span =
style=3D'mso-tab-count:1'>=A0=A0=A0=A0 </span>+47
53422581<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Times New Roman"><span =
lang=3DEN-GB
style=3D'font-size:10.0pt;mso-ansi-language:EN-GB;mso-no-proof:yes'><spa=
n
style=3D'mso-tab-count:1'>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =
</span>Fax<span style=3D'mso-tab-count:
1'>=A0=A0=A0=A0=A0=A0=A0=A0=A0 </span>+47 =
53422501<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Times New Roman"><span =
lang=3DEN-GB
style=3D'font-size:10.0pt;mso-ansi-language:EN-GB;mso-no-proof:yes'><spa=
n
style=3D'mso-tab-count:1'>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =
</span>E-mail<span style=3D'mso-tab-count:
1'>=A0=A0=A0=A0 =
</span>Frode.Meling@wartsila.com<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Times New Roman"><span =
lang=3DEN-GB
style=3D'font-size:10.0pt;mso-ansi-language:EN-GB;mso-no-proof:yes'>____=
__________________________________________<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

</div>

</body>

</html>

------_=_NextPart_001_01C157BB.BA225E80--




From - Thu Nov 08 21:19:57 2018
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From: Richard Allen <ra@hp.is>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc update
Date: Thu, 18 Oct 2001 10:44:29 +0000
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Cc: parisc-linux@parisc-linux.org
To: Randolph Chung <randolph@tausq.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:12707

On Wed, Oct 17, 2001 at 12:23:13PM -0700, Randolph Chung wrote:
> glibc 2.2.4-3 has been uploaded to Debian's incoming direction and
> should be installed in today's archive run.
> 
> it was lightly tested by lamont and myself before upload... please do
> report any problems you find.

I did an apt-get update and apt-get upgrade and recived all the new packages on
my C360.   I then compiled todays kernel on my machine.

bofh:~# dpkg --list | grep -i libc6
ii  libc6          2.2.4-3        GNU C Library: Shared libraries and Timezone
ii  libc6-dev      2.2.4-3        GNU C Library: Development Libraries and Hea
bofh:~# uname -a
Linux bofh 2.4.9-pa57 #1 Thu Oct 18 10:12:28 UTC 2001 parisc unknown

All went well and my box seems to be functioning perfectly. :-)

-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




From - Thu Nov 08 21:19:57 2018
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From: Richard Allen <ra@hp.is>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Debian package automake broken ?
Date: Thu, 18 Oct 2001 12:56:54 +0000
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After upgrading lots of packages on my C360 (including automake) I 
get the following errors when compiling things:

config.status: creating xa_ext.h
config.status: creating db_config.h
+ make
cd . && aclocal
cd . && automake --foreign --include-deps Makefile
automake: configure.in: required file `./depcomp' not found
make: *** [Makefile.in] Error 1


This particular package always made it through configure but had
runtime issues I was hoping to blame the gcc toolchain og glibc 
for.   Now that we have new versions of both, this happens :)

-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




From - Thu Nov 08 21:19:57 2018
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From: Jesus Climent <climent@stybba.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Debian package automake broken ?
Date: Thu, 18 Oct 2001 16:05:04 +0300
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On 2001.10.18 15:56 ext Richard Allen wrote:
> After upgrading lots of packages on my C360 (including automake) I 
> get the following errors when compiling things:
> 
> config.status: creating xa_ext.h
> config.status: creating db_config.h
> + make
> cd . && aclocal
> cd . && automake --foreign --include-deps Makefile
> automake: configure.in: required file `./depcomp' not found
> make: *** [Makefile.in] Error 1
> 
> 
> This particular package always made it through configure but had
> runtime issues I was hoping to blame the gcc toolchain og glibc 
> for.   Now that we have new versions of both, this happens :)

is automake. It is reported in Debian Weekly report. Automake 1.5 somehow breaks
things.

Jesse




From - Thu Nov 08 21:19:58 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc update
Date: Thu, 18 Oct 2001 15:10:58 +0100
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On Wed, Oct 17, 2001 at 12:23:13PM -0700, Randolph Chung wrote:
> 3. with the glibc build (using old binutils) some of the linuxthreads
> tests are failing. in particular there's one case where it seems to get
> into a deadlock. i left it running overnight and it's still stuck ... 
> i don't know if this has always been broken though.

That's right, some of the tests have always failed.  However, this was
better than the previous state where all tests failed, so I uploaded...

I have a list of tests which fail that I posted to parisc-linux some
time ago.  As far as I know, nobody fixed them.

http://lists.parisc-linux.org/pipermail/parisc-linux/2001-May/012560.html

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:19:58 2018
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Subject: [parisc-linux] More on the B2000
Date: Thu, 18 Oct 2001 14:24:59 +0000
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I managed to install a B2000 from the 0.92 ISO.    The trick
is to connect a serial console, open the box and disconnect the
IDE cdrom drive, install a SCSI card and plug in a external
SCSI cdrom drive.    

cool:~# uname -a
Linux cool 2.4.0-32 #1 Thu Jun 28 11:49:00 BST 2001 parisc unknown
cool:~# cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8600 (PCX-W+)
cpu MHz         : 400.000000
model           : 9000/785/B2000
model name      : Kazoo W+
hversion        : 0x00005d00
sversion        : 0x00000481
I-cache         : 512 KB
D-cache         : 1024 KB (WB)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
BTLB            : not supported
bogomips        : 799.53

Interesting things from dmesg:

Found devices:
1. Astro BC Runway Port (12) at 0xfed00000, versions 0x582, 0x0, 0xb, 0x0, 0x10
2. Elroy PCI Bridge (13) at 0xfed30000, versions 0x782, 0x0, 0xa, 0x0, 0x0
3. Elroy PCI Bridge (13) at 0xfed32000, versions 0x782, 0x0, 0xa, 0x0, 0x0
4. Kazoo W+ (0) at 0xfffa0000, versions 0x5d0, 0x0, 0x4, 0x0, 0x81
5. Unknown device (1) at 0xfed10200, versions 0x9d, 0x0, 0x9, 0x0, 0x0
That's a total of 5 devices.



I attempted to compile todats kernel on the machine and I did it as
Im used to do (make oldconfig, make dep, make palo)

That kernel refuses to boot:


Firmware Version 5.0

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache 
  ---------  --------   ---------------------  -----------------  -------------
      0      400 MHz    Active                 Functional         512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:              268435456 bytes
  Good memory required:           11108352 bytes

  Primary boot path:    SCSI.6.0
  Alternate boot path:  SCSI.5.0
  Console path:         SERIAL_1.9600.8.none
  Keyboard path:        USB

Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

10 seconds expired.
Proceeding...

Searching for device(s) with bootable media...
This may take several minutes.

To discontinue search, press any key (termination may not be immediate).

Attempting to boot Primary Path...

BOOTABLE DEVICE FOUND:
   Path Number        Device Path              Device Type and Utilities
   -----------        -----------------        -------------------------
   P0                 SCSI.6.0                 QUANTUM Atlas4-9LVD     
                                               IPL

Booting... 
Boot IO Dependent Code (IODC) revision 0


HARD Booted.
palo ipl 0.92 bame@c3k Wed Jun 20 11:49:11 MDT 2001
0/vmlinux32 2853588 bytes @ 0x44000
Partition Start(MB) End(MB) Id Type
1               1      15   f0 Palo
2              16     503   82 swap
3             504    8678   83 ext2

Command line: 'root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102'

Kernel: partition 3 file /boot/vmlinux-2.4.9
ext2 block size 4096
ext2_mount(partition 3) returns 0
ext2_open(/boot/vmlinux-2.4.9) = 3
ELF32 executable
Entry 001000d0 first 00100000 n 6
Segment 0 load 00100000 size 1707984 mediaptr 0x1000
Segment 1 load 002a2000 size 281832 mediaptr 0x1a2000
Segment 2 load 002e8000 size 381932 mediaptr 0x1e7000
Segment 3 load 00348000 size 8192 mediaptr 0x245000
Segment 4 load 00350000 size 32768 mediaptr 0x247000
Segment 5 load 0038dc7c size 87936 mediaptr 0x24fc7c
branching to kernel entry point 0x001000d0
Set default PSW W bit to 0



Dumping Stack from 10348000 to 103487c0:
8000 00000000 00000000 00000000 00000000 102b5160 00000000 00000000 ffffffff
8020 0000000a 00000000 00000000 00000000 00000000 00000000 ffffffff 1034803c
8040 1034803c 00000000 10348000 10348000 102bb600 00000000 00000000 00000000
8060 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8080 00000000 10348000 10348000 00000000 00000000 00000000 10348098 10348098
80a0 00000000 00000000 103480a8 103480a8 00000000 00000000 00000000 00000000
80c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
80e0 1011a008 00000000 00000031 00000000 00000000 00000000 00000000 00000031
8100 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
81a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
81c0 fffffeff 00000000 ffffffff 00000000 102b6120 ffffffff ffffffff ffffffff
81e0 ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff ffffffff
8200 ffffffff 00000f8f 00000f8f 00000400 00000400 ffffffff ffffffff ffffffff
8220 ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000 00000000
8240 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8260 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8280 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
82a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
82c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
82e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8300 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8320 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8340 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8360 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8380 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
83a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
83c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
83e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8400 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8420 00000000 00000000 00000000 00000000 fff00000 40000000 00000000 00000000
8440 102bb040 102bb060 102bb1fc 00000000 00000000 00000000 10348454 00000000
8460 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
84a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
84c0 00000000 00000000 102a4490 00000000 002bc000 00000000 00000000 00000000
84e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8500 00000000 00000000 00000000 00000000 00001000 00000035 0000031f 10279410
8520 00000000 00000000 00000000 102e90d4 00000000 00000000 00000000 00000000
8540 00800327 0006e000 00000000 00000000 00000190 1027a684 00000001 10279bbc
8560 00000027 f0002f68 10350000 102e9fd8 102d2810 00800327 00000000 00000000
8580 f0002f68 10350000 0006e000 0000f8fd 00800327 102e8f94 0004000e f0072848
85a0 00000027 f0002f68 10350000 102eb074 0000f8fd 00800327 00800327 f0400004
85c0 0004000e f0072848 00000007 f0002f68 0000f8fd 1035d010 0000f8fd 00000005
85e0 00000027 f0002f68 10350000 1010a828 0000f8fd 00000005 f0002f68 10350000
8600 1035a010 00000000 102b2298 1035a290 fed00000 102b2254 1027b3bc 1027b3a0
8620 f0002f68 1035d7ba 1035d7b7 101101d8 0000001c 00001000 0000f8fd 55555555
8640 f0072848 00000027 1035a010 0c000000 1035a290 100b9000 00000009 f0072848
8660 00000027 1035a010 0c000000 1012e600 102b2298 00000009 1035a404 f0400004
8680 00000027 1035a010 0c000000 1035a290 000000f0 107a7600 0004000e f0072848
86a0 00000027 1035a010 1035a388 1010fc5c 00000002 1035a388 fffbf000 10361810
86c0 100b9000 00000001 100b901c 100b901c 40000000 102b5010 00000001 1035d7dc
86e0 1035a010 1035d7ba 1035d7b7 1012e354 00000000 00000000 00000000 00000000
8700 107a7600 00000000 ffffffff 00000010 00000000 00000000 ffffffff 00000000
8720 00000000 00000000 00000000 1010fa5c 00000000 00000000 00000000 00000000
8740 00000001 00000005 100b901c 00000000 00000000 10080000 00000000 00000000
8760 00000000 00000000 00000000 10132218 00000000 00000000 00000000 00000000
8780 100b9004 00000001 0000000e 100b901c 100b901c 00020000 40000000 63646566
87a0 6768696a 6b6c6d6e 6f707172 1012e338 7778797a 00000000 30313233 34353637

High Priority Machine Check (HPMC): Code=1 regs=102a5080 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111000001111
r0-3     00000000 1021e000 102eaf2c 00000000
r4-7     102b2118 f0000000 102b2010 102b2118
r8-11    00000001 100b9004 0004000e 102e8f94
r12-15   00000000 ffffffff 00000000 f0400004
r16-19   f00008c4 f000017c f0000174 0000f000
r20-23   00000000 00000800 00000080 00000000
r24-27   fc000000 100bd5c8 000000f0 102a2010
r28-31   00000800 00000000 103487c0 1010f958
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1021e434 1021e438
 IIR: 0f3a1380    ISR: 14240040  IOR: 2f4bd5c8
 CPU:        0   CR30: 10348000 CR31: 10350000
 ORIG_R28: 00000000





The LCD is also Nice :)   It reads:

FLT CBFB4.9-pa57
785/B2000



-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.




From - Thu Nov 08 21:19:58 2018
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From: Tom <palinux@alaskatech.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems installing a 715/100 - Reboots right
 after the 'Set defa ult PSW W bit to 0'
Date: Thu, 18 Oct 2001 06:23:24 -0800 (AKDT)
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Cc: <parisc-linux@lists.parisc-linux.org>, <Dag.Tulloch@wartsila.com>
To: <Frode.Meling@wartsila.com>
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On Thu, 18 Oct 2001 Frode.Meling@wartsila.com wrote:
> * BOOTING FROM CD-ROM *
>
> Any ideas?
> We have tried on two different 715/100 machines. Same thing happens.
> (Booted OK on a B132L)
>
> We also tried upgrading the firmware to 1.6, did not help either...

My 715/100 is running on that release with no problems. (At least, no
problems that can't be attributed to running a brand new unstable
release.)

I don't have that message in my dmesg output anyplace that I can find. Did
it install properly, or is this hanging when you boot from the CD?





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From: Tom <palinux@alaskatech.org>
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Subject: Re: [parisc-linux] EISA support
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On Wed, 10 Oct 2001, Matthew Wilcox wrote:
> Anyone want to review a patch that makes EISA work?  I've only
[snip]
> I seem to have chosen a not-quite-supported EISA card to test with.
> The ID is plausible, so I don't think it's a byteswapping issue or
> anything.

Okay - I just brought things up with -pa61 and get the same errors about
commands not finishing when DHCP tries to use the 3c597 EISA NIC. However,
I scrounged up a static IP, plugged it in, and brought it online. It
*appears* to take the IP and work fine, but I get console errors that
various hexadecimal commands aren't finishing, then a comment that
"perhaps IRQ3 isn't available?" I also can't find a config program to try
resetting the card's IO etc. info - 3c5x9config from stable doesn't appear
to like the HP and I don't have an EISA-based PC to use the DOS utils
on...

Anyone have any ideas? Or, perhaps I can use the DOS utils (if I find an
EISA PC) and set the card to something that -pa61 detects, so they match?





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Subject: Re: [parisc-linux] EISA support
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On Thu, Oct 18, 2001 at 06:31:18AM -0800, Tom wrote:
> Okay - I just brought things up with -pa61 and get the same errors about
> commands not finishing when DHCP tries to use the 3c597 EISA NIC. However,
> I scrounged up a static IP, plugged it in, and brought it online. It
> *appears* to take the IP and work fine, but I get console errors that
> various hexadecimal commands aren't finishing, then a comment that
> "perhaps IRQ3 isn't available?" I also can't find a config program to try
> resetting the card's IO etc. info - 3c5x9config from stable doesn't appear
> to like the HP and I don't have an EISA-based PC to use the DOS utils
> on...

3c597 isn't going to work until someone (probably me...) gets EISA DMA
working.  That depends on getting consensus for how to implement the pci_*
host DMA mapping support (which I think we have now).  Implementing it
is going to depend on some changes such as the iotree.  rbrad & I have
been working on that, and I think we're close to getting finished.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:19:58 2018
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From: Kaj-Michael Lang <milang@tal.org>
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Subject: Re: [parisc-linux] glibc update
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On Wed, 17 Oct 2001, Randolph Chung wrote:

> glibc 2.2.4-3 has been uploaded to Debian's incoming direction and
> should be installed in today's archive run.

Where can I find the sources to uptodate glibc/gcc/binutils for parisc ?
The files on the ftp site are old as far as I can tell.

--
Kaj-Michael Lang, Turku, Finland
milang@tal.org http://www.tal.org





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Subject: Re: [parisc-linux] PCXS fixes
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On Wednesday 03 October 2001 03:32 am, John Marvin wrote:
> ... Note that
> although ldcw requires 16 byte alignment for correct function, it does
> not cause an unaligned fault if the address is not aligned, it just
> doesn't work correctly!
>
> Here are some suggested fixes:
>     1)  ...
>     2)  ...
>
John, Albert and Group;

I am working on a generalized solution as suggestion #3.  Diffs to follow RSN 
- as soon as I finish the coding and Albert gets it to run.

Mike




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Xref: news.gmane.org gmane.linux.ports.parisc:12717

Richard Allen wrote:
> I managed to install a B2000 from the 0.92 ISO.    The trick
> is to connect a serial console, open the box and disconnect the
> IDE cdrom drive, install a SCSI card and plug in a external
> SCSI cdrom drive.

Ah - excellent idea.
I'm helping get IDE-CDOM working and I have also started work on
getting the built-in narrow scsi working (sym53c8xx driver needs
to make a PDC GET_INITIATOR call).

> I attempted to compile todats kernel on the machine and I did it as
> Im used to do (make oldconfig, make dep, make palo)
> That kernel refuses to boot:

To debug problems like this, enable EARLY_BOOTUP_DEBUG in
arch/parisc/kernel/pdc_cons.c.  We also need you to keep the matching
System.map and look up where IOAQ and GR02 point to in the kernel.
Use "build-tools/a.c" to help do the look ups.

I've copied kernels for c3k (32-bit) and a500 (64-bit) to my ftp server.
I've stripped out stuff neither needs from their respective .config:
	ftp://gsyprf10.external.hp.com/pub/a500
and
	ftp://gsyprf10.external.hp.com/pub/c3000

DISCLAIMER: I don't guarantee these kernels will work for anyone for any
purpose or that they are "clean" builds (ie may have custom changes).
Just providing them as a convience.

If something is missing from the respective .config that you think
I should include, feel free to ask for it. I might include it. ;^)

...
> The LCD is also Nice :)   It reads:
> 
> FLT CBFB4.9-pa57
> 785/B2000

CBFB is the "chassis code" for the fault.
Don't recall what that means but it's documented someplace.

The "785/B2000" is written by firmware.
Kudos to Helge/Randolph for the code that writes the top line.
It is cool!

grant




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On Thu, Oct 18, 2001 at 11:32:30AM -0600, Grant Grundler wrote:
> I'm helping get IDE-CDOM working and I have also started work on
> getting the built-in narrow scsi working (sym53c8xx driver needs
> to make a PDC GET_INITIATOR call).

The narrow scsi works provided you boot with "sym53c8xx=buschk:2" as
per the CD errata though, doesn't it?

Richard





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Subject: Re: [parisc-linux] New scsi driver for 53c700 and 53c710 committed
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Cc: Richard Hirst <rhirst@linuxcare.com>,
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	James Bottomley <James.Bottomley@HansenPartnership.com>
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On 2001.10.17 16:19 James Bottomley wrote:
> This one looks like it might be the second new feature of the driver: tag 
> command queuing.
> 
> Could you post the boot messages of the failure case (or at least the device 
> identifications and whether the driver has enabled TCQ [message like scsi1: 
> (5:0) Enabling Tag Command Queuing)].
They do, see below.

/Daniel

SCSI subsystem driver Revision: 1.00
53c700: consistent memory allocation failed
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0 
scsi0 : LASI SCSI 53c700
  Vendor: QUANTUM   Model: FIREBALL_TM3200S  Rev: 300X
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: QUANTUM   Model: FIREBALL ST3.2S   Rev: 0F0C
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
scsi0: (5:0) Enabling Tag Command Queuing
SCSI device sda: 6281856 512-byte hdwr sectors (3216 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
scsi0: (6:0) Enabling Tag Command Queuing
SCSI device sdb: 6328861 512-byte hdwr sectors (3240 MB)
 sdb: unknown partition table
-- 




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On 2001.10.17 11:56 Richard Hirst wrote:
 
> I don't think 18 mins with no lockup against 10 mins with lockup is
> conclusive really, given that the debugging will have slowed things
> down considerably. 
 
Yes, you have a point. But I want to mention that after the bonnie-runI
also ran a e2fsck on my root filesystem while it was dirty and it finnished
which it had never done with the new driver w/o the debug-output.

> How long have you run bonnie for with the old
> driver?  I'd like to see that run for say 1 hour without lockups
> before we assumed the new driver was causing a problem.
I have done three runs in a row with 100Mb data, I dont know how long this takes, 
but say almost an hour.

> When it fails, I'd expect the scsi layer to time out any active
> commands and retry.  Is there any evidence of it doing that, or
> is there no console output at all?
No output at all. Interrupts still work; the box answers pings and echoes the 
console input, but nothing else works.


/Daniel
-- 




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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] travel backwards in time?
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Recently Grant and I have observed several hangs in do_gettimeofday on a
c3k running 32 or 64-bit kernels (UP). 

The symptom we see is gettimeoffset returns a negative number which
results in a huge (unsigned) usec offset in do_gettimeofday, which ends
up spinning in a while loop.

On further investigation we found this piece of code that we don't 
quite understand in the gettimeoffset function:


        /* this is the intended time of the next tick */
        last_tick = cpu_data[smp_processor_id()].it_value;
        /* so subtract one tick */
        /* and account for possible difference between wall and actual time */
        last_tick += clocktick * (jiffies - wall_jiffies - 1);
	
The last_tick adjustment looks a bit odd. Looking at ia64, it looks more
like this:

        last_tick -= clocktick * (jiffies - wall_jiffies + 1);

I tried this and couldn't reproduce the hangs anymore, but am not sure
if this is the right fix.

jsm suggested we try an experiment to disable interrupts in the
timer_interrupt handler. I tried that yesterday (add a __cli() call) and
it didn't seem to fix the hangs.

Can someone more familiar with that part of the code (pb?) please comment?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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Carlos, Randolph and others interested in PA-RISC 2.0 documentation -

My name is Pamela Brann and I am the new topic area owner for the pa-risc
section of HP's developer and solution partner portal (DSPP.)  This is the
portal Grant referenced in one of his replies to this thread.

I wanted to let you all know that I am currently looking into the
availability of providing a PDF version of this document on the pa-risc
topic page, located at
http://dsportal.eservices.hp.com/dspp/tech/tech_TechTypeListingPage_IDX/1,17
04,10403,00.html.  As Randolph mentioned, there is a hard copy of this book
and it is actually still available through Amazon.com (at least.)  There is
a link off the site linked above where you can order a copy of this book
online.  We have had some restrictions from the publisher in the past which
have kept us from publishing a PDF version of this particular document.  I
am currently looking into the status of these restrictions to see if we can
post a copy for you in this format.  Once I have a firm answer, I will post
to this list again with an update.  In the interim, feel free to use the
online version which is available from this site as well.

Please feel free to email me personally if you have any additional questions
about pa-risc documentation or if there is any other information that we can
provide for you on this site.

Sincerely,
Pamela Brann
Technical Topic Area Owner, DSPP
Developers Resource Lab
Hewlett-Packard
(970) 898-4835
pamela_brann@hp.com

...............................................
>> Does anyone have the PA-RISC 2.0 Architecture and Instruction
>> Set Reference Manual in pdf format? (or ps format)
>> 
>> I have the PA-RISC 1.1 docs, but the 2.0 docs seem to be 
>> available only as online html.
>
>dunno about pdf, but there's a PA2.0 architecture book (dead tree kind). 
>It's out of print but you can order it by special order from places 
>like FatBrain.  It's definitely a good reference.
>
>looks like HP reorganized some of the web pages and some of the links
>from http://www.parisc-linux.org/documentation/index.html are out of
>date... can someone fix them? 




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> >#3: http://people.debian.org/~tausq/glibc.build.log2
> >#2: http://people.debian.org/~tausq/glibc.build.log5
> 
> Have you tried running the tests by hand and seeing what the output is?
> What is the output of running:
> /home/randolph/gcc-3.0/glibc-2.2.4/hppa-linux/obj/math/test-fenv.out

eh? that's the output report file :)

i get a floating point exception when running the corresponding
executable.


Program received signal SIGFPE, Arithmetic exception.
0x4011b328 in vfprintf () from /lib/libc.so.6
(gdb) bt
#0  0x4011b328 in vfprintf () from /lib/libc.so.6
#1  0x40123490 in printf () from /lib/libc.so.6
#2  0x00010f8c in feenv_mask_test (
    flag_name=0x40210048 "@\036\177P@\036\177T@\036\177`@\036\177X@\036\177h@\036\177\220@\036\177@\036\177@\036\177@\036\177@\036\177@\036\177@\036\177@\036\200", fe_exc=1) at test-fenv.c:332
#3  0x0001160c in fe_single_test (flag_name=0x11f98 "FE_INEXACT", fe_exc=1)
    at test-fenv.c:607
#4  0x00011664 in feenv_tests () at test-fenv.c:625
#5  0x000116e4 in main () at test-fenv.c:654


randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] More on the B2000
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Richard Hirst wrote:
> On Thu, Oct 18, 2001 at 11:32:30AM -0600, Grant Grundler wrote:
> > I'm helping get IDE-CDOM working and I have also started work on
> > getting the built-in narrow scsi working (sym53c8xx driver needs
> > to make a PDC GET_INITIATOR call).
> 
> The narrow scsi works provided you boot with "sym53c8xx=buschk:2" as
> per the CD errata though, doesn't it?

I haven't tried that. I will.

I tried forcing the sym53c8xx to use narrow only and that
hangs the box. The internal LVD disk insist on
re-negotiating for wide and never get past that.

grant




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> 
> Can someone more familiar with that part of the code (pb?) please comment?
> 

I never had lots of confidence in that code even though I introduced it
by distilling other archs -- and dimly recall not being able to use
ia64 for some reason, or maybe I'm remembering wrong.  I never felt
I completely understood the interaction with the sometimes-missed
timer interrupt and arch-independent timer handling, and some of the
other archs seemed to be unexpectedly different from each other.

How's that for a useless comment?! :-)

	-P




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Xref: news.gmane.org gmane.linux.ports.parisc:12726

I've just had a look at this.  Seems to be a problem related to
the kernel trying to invoke non-existant usermode helper progs.

I created a script /sbin/hotplug containing just


#!/bin/sh
echo hotplug: $* > /dev/console


and my kernel no longer crashes when trying to establish an async
ppp link.  Instead, I get this in syslog:

Mar 20 16:24:33 merlin pppd[221]: Serial connection established.
Mar 20 16:24:34 merlin insmod: Note: /etc/modules.conf is more recent than /lib/modules/2.4.9-32/modules.dep
Mar 20 16:24:34 merlin pppd[221]: using channel 1
Mar 20 16:24:34 merlin pppd[221]: Using interface ppp0
Mar 20 16:24:34 merlin pppd[221]: Connect: ppp0 <--> /dev/ttyS1
Mar 20 16:24:34 merlin pppd[221]: read: Resource temporarily unavailable       
Mar 20 16:24:34 merlin pppd[221]: read /dev/ppp: Resource temporarily unavailable
Mar 20 16:24:35 merlin pppd[221]: read: Resource temporarily unavailable
Mar 20 16:24:35 merlin pppd[221]: read /dev/ppp: Resource temporarily unavailable
Mar 20 16:24:35 merlin pppd[221]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x7837ff6f> <pcomp> <accomp>]
Mar 20 16:24:35 merlin pppd[221]: read: Resource temporarily unavailable
Mar 20 16:24:35 merlin pppd[221]: read /dev/ppp: Resource temporarily unavailable
Mar 20 16:24:36 merlin pppd[221]: rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x7837ff6f> <pcomp> <accomp>]
Mar 20 16:24:38 merlin pppd[221]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x7837ff6f> <pcomp> <accomp>]
etc
etc

I guess next I need to figure out what is causing the "Resource
temporarily unavailable" (assuming that is an error).

iirc we have had problems with non-existant usermode helpers before,
and had to turn module support off until we had modutils ported.

Richard


On Tue, Oct 16, 2001 at 06:22:44PM +0200, DUTOT Stphane wrote:
> Hello,
> 
> I have a HP 712/100, I will install my HP station on Adsl gateway. For this, i need make a pptp or pppoe connexion.
> 
> When, the debian install kernel 2.4.0-32, when i start pppoe or pptp connexion, the pppd is launch and just after all system is block. With the last kernel version (2.4.9-pa45) downloaded on paris-linux site. When, i start pptp connexion, he has a kernel panic.
> 
> I have check the mailing-list archive. And i haven't found a begin of solution.
> 
> Maybe, do you have see this problem under the past ?
> 
> Thanks Stphane DUTOT.




From - Thu Nov 08 21:19:59 2018
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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: [parisc-linux] ide_intr() code review
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Hey, 
trivial thing that's not really a bug.

linux/spinlock.h:#define spin_lock_irqsave(lock, flags)               do { local_irq_save(flags);       spin_lock(lock); } while (0)

asm-parisc/system.h:#define local_irq_save(x) \
        __asm__ __volatile__("rsm %1,%0" : "=r" (x) :"i" (PSW_I) : "memory" )

/*
 * entry point for all interrupts, caller does __cli() for us
 */
void ide_intr (int irq, void *dev_id, struct pt_regs *regs)
{ 
...
        spin_lock_irqsave(&io_request_lock, flags);


is __cli() being done twice?

It just seems wrong to be calling spin_lock_irqsave() from
the interrupt handler.

grant




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From: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>
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Subject: Re: [randolph@tausq.org: [parisc-linux] glibc update]
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> 
> eh? that's the output report file :)
> 
> i get a floating point exception when running the corresponding
> executable.
> 
> 
> Program received signal SIGFPE, Arithmetic exception.
> 0x4011b328 in vfprintf () from /lib/libc.so.6
> (gdb) bt
> #0  0x4011b328 in vfprintf () from /lib/libc.so.6
> #1  0x40123490 in printf () from /lib/libc.so.6
> #2  0x00010f8c in feenv_mask_test (
>     flag_name=0x40210048 "@\036\177P@\036\177T@\036\177`@\036\177X@\036\177h@\036\177\220@\036\177@\036\177@\036\177@\036\177@\036\177@\036\177@\036\177@\036\200", fe_exc=1) at test-fenv.c:332
> #3  0x0001160c in fe_single_test (flag_name=0x11f98 "FE_INEXACT", fe_exc=1)
>     at test-fenv.c:607
> #4  0x00011664 in feenv_tests () at test-fenv.c:625
> #5  0x000116e4 in main () at test-fenv.c:654
> 
>

When running these tests, it gets a little complex.
I'm pretty sure the test needs to be run against the
libc.so.6 that you are building, and not the one in /lib
on your system.

You could set the LD_LIBRARY_PATH to the location of the
objects you are building and then run it...

However, if you do that, then gdb might act strangely
with this newly built libc (since ld trying to load gdb
will use the libc in the library path).

How do you load gdb with one libc and debug a program
that uses another?

When I run the test-fenv, I get a whole list of output
criteria, but it finally exist with $?=132
I'm running with LD_LIBRARY_PATH set to the new libc,
glibc 2.2.4-2, built with newer binutils.

c.




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Subject: Re: [parisc-linux] PPTP and PPPOE under Debian HPPA Linux.
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On Thu, Oct 18, 2001 at 10:46:44PM +0100, Richard Hirst wrote:
> I've just had a look at this.  Seems to be a problem related to
> the kernel trying to invoke non-existant usermode helper progs.
> 
> I created a script /sbin/hotplug containing just
> 
> 
> #!/bin/sh
> echo hotplug: $* > /dev/console
> 

Don't forget to chmod +x that script.

> and my kernel no longer crashes when trying to establish an async
> ppp link.  Instead, I get this in syslog:

The real problem there was that I was using the wrong authentication
method for my isp.  Once I set that right the link came up.

Richard





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Subject: Re: [randolph@tausq.org: [parisc-linux] glibc update]
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On Fri, Oct 19, 2001 at 01:17:19AM -0400, Carlos O'Donell Jr. wrote:
> You could set the LD_LIBRARY_PATH to the location of the
> objects you are building and then run it...
> 
> However, if you do that, then gdb might act strangely
> with this newly built libc (since ld trying to load gdb
> will use the libc in the library path).
> 
> How do you load gdb with one libc and debug a program
> that uses another?

run gdb, then type
set env LD_LIBRARY_PATH blah blah blah

-- 
Revolutions do not require corporate support.




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To: carlos@megatonmonkey.net (Carlos O'Donell Jr.)
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In-Reply-To: <20011019011719.C12905@megatonmonkey.net> from "Carlos O'Donell Jr." at Oct 19, 2001 01:17:19 am
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Xref: news.gmane.org gmane.linux.ports.parisc:12731

> How do you load gdb with one libc and debug a program
> that uses another?

Build a static version of gdb.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




From - Thu Nov 08 21:19:59 2018
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From: "Jean-Yves GUILLEVIC" <jyguillevic@trace.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715S/33 aka Strider-33
Date: Fri, 19 Oct 2001 20:07:59 +0200
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C'est un message de format MIME en plusieurs parties.

------=_NextPart_000_0015_01C158D9.BFC79480
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Hello all

Does someone has a 715S/33 aka Strider-33 or 715S/50 aka Strider-50 ?

Does it work under Pa-Linux ?

--jean-yves

------=_NextPart_000_0015_01C158D9.BFC79480
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.3315.2870" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hello all</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Does someone has a 715S/33 aka =
Strider-33 or=20
715S/50 aka Strider-50 ?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Does it work under Pa-Linux =
?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>--jean-yves</FONT></DIV></BODY></HTML>

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From - Thu Nov 08 21:19:59 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715S/33 aka Strider-33
Date: Fri, 19 Oct 2001 20:45:14 +0100
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To: Jean-Yves GUILLEVIC <jyguillevic@trace.fr>
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On Fri, Oct 19, 2001 at 08:07:59PM +0200, Jean-Yves GUILLEVIC wrote:
> Does someone has a 715S/33 aka Strider-33 or 715S/50 aka Strider-50 ?

Nobody's put one in the hardware database, so I presume not.

> Does it work under Pa-Linux ?

It might do.  As I understand it, the Strider & Trailways boxes
were PA-upgrades for m68k boxes.  I don't know how much was replaced
or altered.  I would love it if you would add an entry to the hwdb
(if it's still running HPUX) or send a boot-log from a recent kernel.

-- 
Revolutions do not require corporate support.




From - Thu Nov 08 21:19:59 2018
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From: "Bjoern A. Zeeb" <bzeeb+hplinux@zabbadoz.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] distributed.net client available for PARISC/linux
Date: Fri, 19 Oct 2001 22:52:11 +0200 (CEST)
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Hi,

for all those that do not wanna run seti clients I want to note that
there is a distributed.net client available compiled on a PARISC 1.1
(dynamically and static linked binaries).

So get your moo from
http://www.distributed.net/download/clients.html#linux

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/





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From: rbradetich@uswest.net (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] The long awaited iotree patch for System Map Firmware
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--0OAP2g/MAC+5xKAE
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Hello parisc-linux hackers,

Here is the patch for the I/O Tree for the System Map firmware
boxes.  I believe the I/O tree for legacy firmware is already in
the cvs repository, and I need to get access to a PAT firmware
box to finish the iotree for PAT firmware.


Please test this patch out and report any problems.  I would
like to get this patch committed to the repository so we can
finally use the multiple IOMMUs present in the ccio boxes,
etc.


I have tested this patch on C200 and K460.

Thanks,

- Ryan

P.S. Thanks to willy for all his help, reviews and general
rewrite to put this patch in its current state!

--0OAP2g/MAC+5xKAE
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="iotree-rbrad-willy.patch"

Index: arch/parisc/kernel/ccio-dma.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/ccio-dma.c,v
retrieving revision 1.42
diff -u -p -r1.42 ccio-dma.c
--- arch/parisc/kernel/ccio-dma.c	2001/10/04 16:30:43	1.42
+++ arch/parisc/kernel/ccio-dma.c	2001/10/19 22:39:04
@@ -208,6 +208,8 @@ static int ioc_count;
 #define MKIOVA(iovp,offset) (dma_addr_t)((long)iovp | (long)offset)
 #define ROUNDUP(x,y) ((x + ((y)-1)) & ~((y)-1))
 
+
+#define GET_IOC(dev) (ioc_list)
 /*
 ** Don't worry about the 150% average search length on a miss.
 ** If the search wraps around, and passes the res_hint, it will
@@ -638,7 +640,7 @@ static dma_addr_t 
 ccio_map_single(struct pci_dev *dev, void *addr, size_t size, int direction)
 {
 	int idx;
-	struct ioc *ioc = ioc_list;
+	struct ioc *ioc = GET_IOC(dev);
 	unsigned long flags;
 	dma_addr_t iovp;
 	dma_addr_t offset;
@@ -702,7 +704,7 @@ static void 
 ccio_unmap_single(struct pci_dev *dev, dma_addr_t iova, size_t size, 
 		  int direction)
 {
-	struct ioc *ioc = ioc_list; /* XXX: Use appropriate IOC for this dev */
+	struct ioc *ioc = GET_IOC(dev);
 	unsigned long flags; 
 	dma_addr_t offset = iova & ~IOVP_MASK;
 	
@@ -960,7 +962,7 @@ static int
 ccio_map_sg(struct pci_dev *dev, struct scatterlist *sglist, int nents, 
 	    int direction)
 {
-	struct ioc *ioc = ioc_list;
+	struct ioc *ioc = GET_IOC(dev);
 	int coalesced, filled = 0;
 	unsigned long flags;
 	unsigned long hint = hint_lookup[direction];
@@ -1023,8 +1025,7 @@ static void 
 ccio_unmap_sg(struct pci_dev *dev, struct scatterlist *sglist, int nents, 
 	      int direction)
 {
-	/* FIXME : see Multi-IOC below */
-	struct ioc *ioc = ioc_list;
+	struct ioc *ioc = GET_IOC(dev);
 
 	DBG_RUN_SG("%s() START %d entries,  %p,%x\n",
 		__FUNCTION__, nents, sglist->address, sglist->length);
@@ -1062,7 +1063,7 @@ static struct pci_dma_ops ccio_ops = {
 static int 
 ccio_proc_info(char *buf, char **start, off_t offset, int len)
 {
-	struct ioc *ioc = ioc_list;
+	struct ioc *ioc = GET_IOC(dev);
 
 	buf[0] = '\0';
 	while (ioc != NULL) {
@@ -1123,7 +1124,7 @@ ccio_proc_info(char *buf, char **start, 
 static int
 ccio_resource_map(char *buf, char **start, off_t offset, int len)
 {
-	struct ioc *ioc = ioc_list;
+	struct ioc *ioc = GET_IOC(dev);
 
 	buf[0] = '\0';
 	while (ioc != NULL) {
@@ -1153,7 +1154,7 @@ ccio_resource_map(char *buf, char **star
 void ccio_cujo20_fixup(struct parisc_device *dev, u32 iovp)
 {
 	unsigned int idx;
-	struct ioc *ioc = ioc_list;
+	struct ioc *ioc = GET_IOC(dev);
 	u8 *res_ptr;
 
 #ifdef CONFIG_PROC_FS
@@ -1336,7 +1337,7 @@ int do_native_bus_walk(unsigned long io_
  */
 static int ccio_probe(struct parisc_device *dev)
 {
-	int i, start_index, num_devices;
+	int i;
 	unsigned long io_io_low;
 	struct ioc *ioc, **ioc_p = &ioc_list;
 
@@ -1379,9 +1380,8 @@ static int ccio_probe(struct parisc_devi
 	io_io_low |= 0xffffffff00000000UL;
 #endif
 	printk(KERN_INFO "io_io_low: 0x%lx\n", io_io_low);
-	start_index = get_num_pa_dev();
-	num_devices = do_native_bus_walk(io_io_low);
-	print_pa_devices(start_index, num_devices);
+	walk_native_bus(io_io_low, dev);
+	print_subdevices(dev);
 	return 0;
 }
 
Index: arch/parisc/kernel/drivers.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/drivers.c,v
retrieving revision 1.28
diff -u -p -r1.28 drivers.c
--- arch/parisc/kernel/drivers.c	2001/10/05 17:02:32	1.28
+++ arch/parisc/kernel/drivers.c	2001/10/19 22:39:04
@@ -23,19 +23,47 @@
 #include <asm/io.h>
 #include <asm/pdc.h>
 
+static struct parisc_driver *pa_drivers;
+static struct parisc_device root;
 
-/* 
- * I'm assuming there'll never be 32 devices.  We should probably make
- * this more flexible.  
+/* This lock protects the pa_drivers list _only_ since all parisc_devices
+ * are registered before smp_init() is called.  If you wish to add devices
+ * after that, this muct be serialised somehow.  I recommend a semaphore
+ * rather than a spinlock since driver ->probe functions are allowed to
+ * sleep (for example when allocating memory).
  */
+static spinlock_t pa_lock = SPIN_LOCK_UNLOCKED;
 
-#define MAX_DEVICES 32
+#define for_each_padev(dev) \
+	for (dev = root.child; dev != NULL; dev = next_dev(dev))
 
-static int num_devices;
-static struct parisc_device pa_devices[MAX_DEVICES];
-static struct parisc_driver *pa_drivers;
-static rwlock_t pa_lock = RW_LOCK_UNLOCKED;
+#define bus_for_each(dev) \
+	for (; dev != NULL; dev = dev->sibling)
+
+/**
+ * next_dev - enumerates registered devices
+ * @dev: the previous device returned from next_dev
+ *
+ * next_dev does a depth-first search of the tree, returning parents
+ * before children.  Returns NULL when there are no more devices.
+ */
+struct parisc_device *next_dev(struct parisc_device *dev)
+{
+	if (dev->child) {
+		return dev->child;
+	} else if (dev->sibling) {
+		return dev->sibling;
+	}
+
+	/* Exhausted tree at this level, time to go up. */
+	do {
+		dev = dev->parent;
+		if (dev && dev->sibling)
+			return dev->sibling;
+	} while (dev != &root);
 
+	return NULL;
+}
 
 /**
  * match_device - Report whether this driver can handle this device
@@ -45,9 +73,12 @@ static rwlock_t pa_lock = RW_LOCK_UNLOCK
 static int match_device(struct parisc_driver *driver, struct parisc_device *dev)
 {
 	const struct parisc_device_id *ids;
+
+	for (ids = driver->id_table; ids->sversion; ids++) {
+		if ((ids->sversion != SVERSION_ANY_ID) &&
+		    (ids->sversion != dev->id.sversion))
+			continue;
 
-	for (ids = driver->id_table; ids->hw_type || ids->hversion ||
-			ids->hversion_rev || ids->sversion; ids++) {
 		if ((ids->hw_type != HWTYPE_ANY_ID) &&
 		    (ids->hw_type != dev->id.hw_type))
 			continue;
@@ -60,14 +91,9 @@ static int match_device(struct parisc_dr
 		    (ids->hversion_rev != dev->id.hversion_rev))
 			continue;
 
-		if ((ids->sversion != SVERSION_ANY_ID) &&
-		    (ids->sversion != dev->id.sversion))
-			continue;
-
 		return 1;
 	}
 	return 0;
-
 }
 
 /**
@@ -76,7 +102,7 @@ static int match_device(struct parisc_dr
  */
 int register_parisc_driver(struct parisc_driver *driver)
 {
-	int i;
+	struct parisc_device *device;
 
 	if (driver->next) {
 		printk(KERN_WARNING 
@@ -84,19 +110,8 @@ int register_parisc_driver(struct parisc
 		       driver->name, driver->version);
 		return 1;
 	}
-
-	write_lock(&pa_lock);
 
-	/* Note that the list is in reverse order of registration.  This
-	 * may be significant if we ever actually support hotplug and have
-	 * multiple drivers capable of claiming the same chip.
-	 */
-	driver->next = pa_drivers;
-	pa_drivers = driver;
-	
-	for (i=0; i < num_devices; i++) {
-		struct parisc_device *device = &pa_devices[i];
-
+	for_each_padev(device) {
 		if (device->driver)
 			continue;
 		if (!match_device(driver, device))
@@ -112,8 +127,16 @@ int register_parisc_driver(struct parisc
 		}
 	}
 
-	write_unlock(&pa_lock);
+	/* Note that the list is in reverse order of registration.  This
+	 * may be significant if we ever actually support hotplug and have
+	 * multiple drivers capable of claiming the same chip.
+	 */
 
+	spin_lock(&pa_lock);
+	driver->next = pa_drivers;
+	pa_drivers = driver;
+	spin_unlock(&pa_lock);
+
 	return 0;
 }
 
@@ -125,9 +148,9 @@ int register_parisc_driver(struct parisc
  */
 int unregister_parisc_driver(struct parisc_driver *driver)
 {
-	int i;
+	struct parisc_device *dev;
 
-	write_lock(&pa_lock);
+	spin_lock(&pa_lock);
 
 	if (pa_drivers == driver) {
 		/* was head of list - update head */
@@ -149,65 +172,123 @@ int unregister_parisc_driver(struct pari
 
 	}
 
-	for (i=0; i < num_devices; i++) {
-		if (pa_devices[i].driver == driver)
-			pa_devices[i].driver = NULL;
-	}
+	spin_unlock(&pa_lock);
 
-	write_unlock(&pa_lock);
+	for_each_padev(dev) {
+		if (dev->driver == driver)
+			dev->driver = NULL;
+	}
 
 	return 0;
 }
 
+static struct parisc_device *find_device_by_addr(unsigned long hpa)
+{
+	struct parisc_device *dev;
+	for_each_padev(dev) {
+		if (dev->hpa == hpa)
+			return dev;
+	}
+	return NULL;
+}
+
+static void
+get_node_path(struct parisc_device *dev, struct pdc_module_path *path)
+{
+	int i = 5;
+	memset(&path->bc, -1, 6);
+	while (dev != &root) {
+		path->bc[i--] = dev->hw_path;
+		dev = dev->parent;
+	}
+}
+
+static void print_hwpath(struct parisc_device *dev, char *output)
+{
+	int i;
+	struct pdc_module_path path;
+
+	get_node_path(dev->parent, &path);
+	for (i = 0; i < 6; i++) {
+		if (path.bc[i] == -1)
+			continue;
+		output += sprintf(output, "%d/", path.bc[i]);
+	}
+	sprintf(output, "%d", dev->hw_path);
+}
 
 /**
- * get_num_pa_dev - Get the count of found devices
- * (currently only used by the ccio driver)
+ * alloc_tree_node - returns a device entry in the iotree
+ * @parent: the parent node in the tree
+ * @id: the element of the module path for this entry
+ *
+ * Checks all the children of @parent for a matching @id.  If none
+ * found, it allocates a new device and returns it.
  */
-int get_num_pa_dev(void)
+struct parisc_device *
+alloc_tree_node(struct parisc_device *parent, char id)
 {
-	int i;
+	struct parisc_device *dev, *prev;
+	if ((!parent->child) || (parent->child->hw_path > id)) {
+		dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+		memset(dev, 0, sizeof(*dev));
+		dev->hw_path = id;
+		dev->parent = parent;
+		dev->sibling = parent->child;
+		parent->child = dev;
+		return dev;
+	}
+	
+	prev = parent->child;
+	if(prev->hw_path == id)
+		return prev;
+
+	while (prev->sibling && prev->sibling->hw_path < id) {
+		prev = prev->sibling;
+	}
 	
-	read_lock(&pa_lock);
-	i = num_devices;
-	read_unlock(&pa_lock);
+	if ((prev->sibling) && (prev->sibling->hw_path == id))
+		return prev->sibling;
 
-	return i;
+	dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+	memset(dev, 0, sizeof(*dev));
+	dev->hw_path = id;
+	dev->parent = parent;
+	dev->sibling = prev->sibling;
+	prev->sibling = dev;
+	return dev;
 }
 
-struct parisc_device *alloc_pa_dev(unsigned long hpa)
+static struct parisc_device *find_parisc_device(struct pdc_module_path *modpath)
 {
-	int i, status;
+	int i;
+	struct parisc_device *parent = &root;
+	for (i = 0; i < 6; i++) {
+		if (modpath->bc[i] == -1)
+			continue;
+		parent = alloc_tree_node(parent, modpath->bc[i]);
+	}
+	return alloc_tree_node(parent, modpath->mod);
+}
+
+struct parisc_device *
+alloc_pa_dev(unsigned long hpa, struct pdc_module_path *mod_path)
+{
+	int status;
 	unsigned long bytecnt;
 	u8 iodc_data[32];
 	struct parisc_device *dev;
 	const char *name;
 
-	write_lock(&pa_lock);
-
-	/* Check to make sure this device has not already been added -Ryan */
-	for (i = 0; i < num_devices; i++) {
-		if (pa_devices[i].hpa == hpa) {
-			write_unlock(&pa_lock);
-			return NULL;
-		}
-	}
-
-	if (num_devices >= MAX_DEVICES) {
-		printk(KERN_ERR "%s: Too many devices.\n", __FUNCTION__ );
-		write_unlock(&pa_lock);
+	/* Check to make sure this device has not already been added - Ryan */
+	if (find_device_by_addr(hpa) != NULL)
 		return NULL;
-	}
-	
-	dev = &pa_devices[num_devices];
-	memset(dev, 0, sizeof(*dev));
-	
+
 	status = pdc_iodc_read(&bytecnt, hpa, 0, &iodc_data, 32);
-	if (status != PDC_OK) {
-		/* There is no device here, so we'll skip it */
-		write_unlock(&pa_lock);
+	if (status != PDC_OK)
 		return NULL;
-	}
+
+	dev = find_parisc_device(mod_path);
 
 	dev->id.hw_type = iodc_data[3] & 0x1f;
 	dev->id.hversion = (iodc_data[0] << 4) | ((iodc_data[1] & 0xf0) >> 4);
@@ -220,9 +301,6 @@ struct parisc_device *alloc_pa_dev(unsig
 		strncpy(dev->name, name, sizeof(dev->name)-1);
 	}
 
-	num_devices++;
-
-	write_unlock(&pa_lock);
 	return dev;
 }
 
@@ -243,7 +321,7 @@ int register_parisc_device(struct parisc
 	if (dev->driver)
 		return 1;
 	
-	write_lock(&pa_lock);
+	spin_lock(&pa_lock);
 
 	/* Locate a driver which agrees to manage this device.  */
 	for (driver = pa_drivers; driver; driver = driver->next) {
@@ -254,45 +332,85 @@ int register_parisc_device(struct parisc
 	}
 
 	dev->driver = driver;
-	write_unlock(&pa_lock);
+	spin_unlock(&pa_lock);
 	return driver != NULL;
 }
 
+#define MAX_NATIVE_DEVICES 64
+#define NATIVE_DEVICE_OFFSET 0x1000
 
 /**
- * print_pa_devices - Print out a list of devices found in this system
- * @start_index: the starting index from which the list should be printed
- * @num_indexes: the numbers of devices to print
+ * do_native_bus_walk -- Probe a bus for devices
+ * @addr: Base address of this bus.
+ * 
+ * A native bus (eg Runway or GSC) may have up to 64 devices on it,
+ * spaced at intervals of 0x1000 bytes.  PDC may not inform us of these
+ * devices, so we have to probe for them.  Unfortunately, we may find
+ * devices which are not physically connected (such as extra serial &
+ * keyboard ports).  This problem is not yet solved.
  */
-void print_pa_devices(int start_index, int num_indexes)
+void walk_native_bus(unsigned long addr, struct parisc_device *parent)
 {
-	unsigned int i;
-	struct parisc_device *d;
+	int i;
+	struct pdc_module_path path;
+	get_node_path(parent, &path);
+	for (i = 0; i < MAX_NATIVE_DEVICES; i++) {
+		struct parisc_device *dev;
+		path.mod = i;
+		dev = alloc_pa_dev(addr + i * NATIVE_DEVICE_OFFSET, &path);
+		if (!dev)
+			continue;
+		register_parisc_device(dev);
+	}
+}
 
-	read_lock(&pa_lock);
-	
-	for (i = start_index; i < start_index + num_indexes; i++) {
-		
-		if (i >= MAX_DEVICES)
-			break;
-		
-		d = &pa_devices[i];
-		
-		printk(KERN_INFO
-		"%d. %s (%d) at 0x%lx, versions 0x%x, 0x%x, 0x%x",
-		i + 1, d->name,	d->id.hw_type, d->hpa, 
-		d->id.hversion, d->id.hversion_rev, d->id.sversion);
-
-		if (d->num_addrs > 1) {
-			int k;
-			printk(",  additional addresses: ");
-			for (k = 1; k < d->num_addrs; k++)
-				printk("0x%lx ", d->addr[k]);
-		}
+#define CENTRAL_BUS_ADDR (unsigned long) 0xfffffffffff80000
+
+/**
+ * walk_central_bus - Find devices attached to the central bus
+ *
+ * PDC doesn't tell us about all devices in the system.  This routine
+ * finds devices connected to the central bus.
+ */
+void walk_central_bus(void)
+{
+	walk_native_bus(CENTRAL_BUS_ADDR, &root);
+}
+
+static void print_parisc_device(struct parisc_device *dev)
+{
+	char hw_path[64];
+	static int count;
 
-		printk("\n");
+	print_hwpath(dev, hw_path);
+	printk(KERN_INFO "%d. %s (%d) at 0x%lx [%s], versions 0x%x, 0x%x, 0x%x",
+		++count, dev->name, dev->id.hw_type, dev->hpa, hw_path,
+		dev->id.hversion, dev->id.hversion_rev, dev->id.sversion);
+
+	if (dev->num_addrs > 1) {
+		int k;
+		printk(",  additional addresses: ");
+		for (k = 1; k < dev->num_addrs; k++)
+			printk("0x%lx ", dev->addr[k]);
 	}
+	printk("\n");
+}
 
-	read_unlock(&pa_lock);
+void print_subdevices(struct parisc_device *parent)
+{
+	struct parisc_device *dev;
+	for (dev = parent->child; dev != parent->sibling; dev = next_dev(dev)) {
+		print_parisc_device(dev);
+	}
 }
 
+/**
+ * print_parisc_devices - Print out a list of devices found in this system
+ */
+void print_parisc_devices(void)
+{
+	struct parisc_device *dev;
+	for_each_padev(dev) {
+		print_parisc_device(dev);
+	}
+}
Index: arch/parisc/kernel/inventory.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/inventory.c,v
retrieving revision 1.41
diff -u -p -r1.41 inventory.c
--- arch/parisc/kernel/inventory.c	2001/10/11 23:43:27	1.41
+++ arch/parisc/kernel/inventory.c	2001/10/19 22:39:04
@@ -184,7 +184,7 @@ pat_query_module(ulong pcell_loc, ulong 
 	}
 
 	temp = pa_pdc_cell.cba;
-	dev = alloc_pa_dev(PAT_GET_CBA(temp));	/* sets dev->hpa */
+	dev = alloc_pa_dev(PAT_GET_CBA(temp), NULL);	/* sets dev->hpa */
 	if (!dev) {
 		return PDC_NE_MOD;
 	}
@@ -406,7 +406,7 @@ static void __init sprockets_memconfig(v
 
 #else   /* !__LP64__ */
 
-#define pat_inventory() (0)
+#define pat_inventory() do { } while (0)
 #define pat_memconfig() do { } while (0)
 #define sprockets_memconfig() pagezero_memconfig()
 
@@ -426,7 +426,7 @@ legacy_create_device(struct pdc_memory_m
 	if (status != PDC_OK)
 		return NULL;
 
-	dev = alloc_pa_dev(r_addr->hpa);
+	dev = alloc_pa_dev(r_addr->hpa, module_path);
 	if (dev == NULL)
 		return NULL;
 
@@ -500,36 +500,6 @@ static int __init snake_inventory(void)
 
 /* Common 32/64 bit based code goes here */
 
-#define MAX_NATIVE_DEVICES 64
-#define NATIVE_DEVICE_OFFSET 0x1000
-
-/**
- * do_native_bus_walk -- Probe a bus for devices
- * @hpa: Base address of this bus.
- *
- * A native bus (eg Runway or GSC) may have up to 64 devices on it,
- * spaced at intervals of 0x1000 bytes.  PDC may not inform us of these
- * devices, so we have to probe for them.  Unfortunately, we may find
- * devices which are not physically connected (such as extra serial &
- * keyboard ports).  This problem is not yet solved.
- */
-int do_native_bus_walk(unsigned long hpa)
-{
-	int num = 0;
-	unsigned long hpa_end =
-	    hpa + (MAX_NATIVE_DEVICES * NATIVE_DEVICE_OFFSET);
-
-	for (; hpa < hpa_end; hpa += NATIVE_DEVICE_OFFSET) {
-		struct parisc_device *dev = alloc_pa_dev(hpa);
-		if (!dev)
-			continue;
-
-		register_parisc_device(dev);
-		++num;
-	}
-	return num;
-}
-
 /**
  * add_system_map_addresses - Add additional addresses to the parisc device.
  * @dev: The parisc device.
@@ -568,17 +538,15 @@ add_system_map_addresses(struct parisc_d
 	}
 }
 
-#define CENTRAL_BUS_ADDR (unsigned long)(signed int)0xFFF80000
-
 /**
  * do_system_map_inventory - Retrieve firmware devices via SYSTEM_MAP.
  *
  * This function attempts to retrieve and register all the devices firmware
  * knows about via the SYSTEM_MAP PDC call.
  */
-static int __init system_map_inventory(void)
+static void __init system_map_inventory(void)
 {
-	int i, num = 0;
+	int i;
 	long status = PDC_OK;
 
 	for (i = 0; status != PDC_BAD_PROC && status != PDC_NE_MOD; i++) {
@@ -591,12 +559,11 @@ static int __init system_map_inventory(v
 		if (status != PDC_OK)
 			continue;
 		
-		dev = alloc_pa_dev(module_result.mod_addr);
+		dev = alloc_pa_dev(module_result.mod_addr, &module_path);
 		if (!dev)
 			continue;
 		
 		register_parisc_device(dev);
-		++num;
 
 		/* if available, get the additional addresses for a module */
 		if (!module_result.add_addrs)
@@ -605,8 +572,8 @@ static int __init system_map_inventory(v
 		add_system_map_addresses(dev, module_result.add_addrs, i);
 	}
 
-	num += do_native_bus_walk(CENTRAL_BUS_ADDR);
-	return num;
+	walk_central_bus();
+	return;
 }
 
 void __init do_memory_inventory(void)
@@ -638,33 +605,26 @@ void __init do_memory_inventory(void)
 
 void __init do_device_inventory(void)
 {
-	int num;
-
 	printk(KERN_INFO "Searching for devices...\n");
 
 	switch (pdc_type) {
 
 	case PDC_TYPE_PAT:
-		num = pat_inventory();
+		pat_inventory();
 		break;
 
 	case PDC_TYPE_SYSTEM_MAP:
-		num = system_map_inventory();
+		system_map_inventory();
 		break;
 
 	case PDC_TYPE_LEGACY:
-		num = snake_inventory();
+		snake_inventory();
 		break;
 
 	default:
 		panic("Unknown PDC type!\n");
 	}
 
-	if (!num) {
-		panic("I can't get the hardware inventory on this machine");
-	}
-
 	printk(KERN_INFO "Found devices:\n");
-	print_pa_devices(0, num);
-	printk(KERN_INFO "That's a total of %d devices.\n", num);
+	print_parisc_devices();
 }
Index: arch/parisc/kernel/led.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/led.c,v
retrieving revision 1.23
diff -u -p -r1.23 led.c
--- arch/parisc/kernel/led.c	2001/10/10 19:01:25	1.23
+++ arch/parisc/kernel/led.c	2001/10/19 22:39:05
@@ -154,8 +154,7 @@ static int led_proc_read(char *page, cha
 static int led_proc_write(struct file *file, const char *buf, 
 	unsigned long count, void *data)
 {
-	const char *cur = NULL;
-	char lbuf[count];
+	char *cur, lbuf[count];
 	int d;
 
 	if (!capable(CAP_SYS_ADMIN))
@@ -163,7 +162,7 @@ static int led_proc_write(struct file *f
 
 	memset(lbuf, 0, count);
 
-	lcopy_from_user(lbuf, buf, count);
+	copy_from_user(lbuf, buf, count);
 	cur = lbuf;
 
 	/* skip initial spaces */
Index: include/asm-parisc/hardware.h
===================================================================
RCS file: /home/cvs/parisc/linux/include/asm-parisc/hardware.h,v
retrieving revision 1.24
diff -u -p -r1.24 hardware.h
--- include/asm-parisc/hardware.h	2001/10/11 23:43:30	1.24
+++ include/asm-parisc/hardware.h	2001/10/19 22:39:07
@@ -1,6 +1,8 @@
 #ifndef _PARISC_HARDWARE_H
 #define _PARISC_HARDWARE_H
 
+#include <asm/pdc.h>
+
 struct parisc_device_id {
 	unsigned char	hw_type;	/* 5 bits used */
 	unsigned char	hversion_rev;	/* 4 bits */
@@ -96,12 +98,15 @@ extern enum cpu_type parisc_get_cpu_type
 
 
 /* drivers.c: */
-extern struct parisc_device *alloc_pa_dev(unsigned long hpa);
+extern struct parisc_device *alloc_pa_dev(unsigned long hpa,
+		struct pdc_module_path *path);
 extern int register_parisc_device(struct parisc_device *dev);
-extern int get_num_pa_dev(void);
-extern void print_pa_devices(int start_index, int num_indexes);
 extern int register_parisc_driver(struct parisc_driver *driver);
 extern int unregister_parisc_driver(struct parisc_driver *driver);
+extern void walk_native_bus(unsigned long addr, struct parisc_device *parent);
+extern void walk_central_bus(void);
+extern void print_subdevices(struct parisc_device *dev);
+extern void print_parisc_devices(void);
 
 /* inventory.c: */
 extern void do_memory_inventory(void);

--0OAP2g/MAC+5xKAE--




From - Thu Nov 08 21:20:00 2018
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X-Mozilla-Keys:                                                                                 
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From: Alan Modra <amodra@bigpond.net.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Fix for hppa-linux ld.so with newer binutils
Date: Sat, 20 Oct 2001 17:09:07 +0930
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	libc-alpha@sources.redhat.com
To: parisc-linux@lists.parisc-linux.org
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Xref: news.gmane.org gmane.linux.ports.parisc:12736

Newer binutils don't initialise .got entries for global syms, so the
scheme used by sysdeps/hppa/dl-machine.h:elf_machine_dynamic to find
the address of .dynamic no longer works.

ChangeLog
	* sysdeps/hppa/dl-machine.h (elf_machine_dynamic):  Make it a
	const function.  Do not use &_DYNAMIC as .got entries for global
	syms are no longer initialised.  Instead they rely on the reloc,
	which hasn't yet been applied.
	(elf_machine_load_address): Make it const.  Call
	elf_machine_dynamic as that function is called fropm rtld anyway.

-- 
Alan Modra
 
Index: sysdeps/hppa/dl-machine.h
===================================================================
RCS file: /home/cvs/parisc/glibc/sysdeps/hppa/dl-machine.h,v
retrieving revision 1.41
diff -u -p -r1.41 dl-machine.h
--- dl-machine.h	2001/06/08 00:19:01	1.41
+++ dl-machine.h	2001/10/20 07:20:27
@@ -76,42 +76,40 @@ elf_machine_matches_host (const Elf32_Eh
 
 /* Return the link-time address of _DYNAMIC.  */
 static inline Elf32_Addr
+elf_machine_dynamic (void) __attribute__ ((const));
+
+static inline Elf32_Addr
 elf_machine_dynamic (void)
 {
   Elf32_Addr dynamic;
 
-#if 0
-  /* Use this method if GOT address not yet set up.  */
   asm (
 "	b,l	1f,%0\n"
 "	depi	0,31,2,%0\n"
 "1:	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 8),%0\n"
 "	ldw	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 12)(%%r1),%0\n"
       : "=r" (dynamic) : : "r1");
-#else
-  /* This works because we already have our GOT address available.  */
-  dynamic = (Elf32_Addr) &_DYNAMIC;
-#endif
 
   return dynamic;
 }
 
 /* Return the run-time load address of the shared object.  */
 static inline Elf32_Addr
+elf_machine_load_address (void) __attribute__ ((const));
+
+static inline Elf32_Addr
 elf_machine_load_address (void)
 {
-  Elf32_Addr dynamic, dynamic_linkaddress;
+  Elf32_Addr dynamic;
 
   asm (
 "	b,l	1f,%0\n"
 "	depi	0,31,2,%0\n"
 "1:	addil	L'_DYNAMIC - ($PIC_pcrel$0 - 8),%0\n"
-"	ldo	R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%%r1),%1\n"
-"	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 16),%0\n"
-"	ldw	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 20)(%%r1),%0\n"
-   : "=r" (dynamic_linkaddress), "=r" (dynamic) : : "r1");
+"	ldo	R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%%r1),%0\n"
+   : "=r" (dynamic) : : "r1");
 
-  return dynamic - dynamic_linkaddress;
+  return dynamic - elf_machine_dynamic ();
 }
 
 /* Fixup a PLT entry to bounce directly to the function at VALUE.  */




From - Thu Nov 08 21:20:00 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] The long awaited iotree patch for System Map Firmware
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To: rbradetich@uswest.net (Ryan Bradetich),
	parisc-linux@lists.parisc-linux.org
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Xref: news.gmane.org gmane.linux.ports.parisc:12737

Hi Ryan,

I've tested your patch on my c3k and 715/64 (aka "Snake").
On the c3k all is fine, but on the 715/64 it breaks the current 
inventory function and just needs a small fix to get it working again.

Anyway, here is the bootlog for the 715/64:

Found devices:                                                                 5
1. Mirage Jr GSC Builtin Graphics (10) at 0xf8000000 [1], versions 0x12, 0x0, 0 
2. Mirage Jr Core BA (11) at 0xf0100000 [2], versions 0x28, 0x0, 0x81           
3.  (0) at 0x0 [2/0], versions 0x0, 0x0, 0x0                                    
4. Mirage Jr Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x28, 0x0, 0x82    a
5. Mirage Jr Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x28, 0x0, 0 
6. Mirage Jr Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x28, 0x0, 0x8c  4
7. Mirage Jr Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x28, 0x0, 0x 
8. Mirage Jr Audio (10) at 0xf0104000 [2/0/8], versions 0x28, 0x0, 0x7b        3
9. Mirage Jr Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x28, 0x0, 0x4
10. Mirage Jr Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x28, 0x0, 04
11. Mirage Jr Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x28, 0x0, 0 
12. Mirage Jr Wax EISA BA (11) at 0xfc000000 [4], versions 0x28, 0x0, 0x90      
13. Mirage Jr Wax BA (11) at 0xf0200000 [5], versions 0x12, 0x0, 0x8e           
14.  (0) at 0x0 [5/0], versions 0x0, 0x0, 0x0                                   
15. Mirage Jr Wax HIL (10) at 0xf0201000 [5/0/1], versions 0x12, 0x0, 0x73      
16. Mirage Jr Wax RS-232 (10) at 0xf0202000 [5/0/2], versions 0x12, 0x0, 0x8c   
17. Mirage Jr (715/64) (0) at 0xfffbe000 [8], versions 0x60a, 0x0, 0x4          
18. Mirage Jr (1) at 0xfffbf000 [9], versions 0x4a, 0x0, 0x9                    
CONFIG_SMP=n  ignoring additional CPUs                                          
Warning : device (0, 0x0, 0x0, 0x0) NOT claimed by CPU                          
CONFIG_SMP=n  ignoring additional CPUs                                          
Warning : device (0, 0x60a, 0x0, 0x4) NOT claimed by CPU
 CPU(s): 1 x PA7100LC (PCX-L) at 64.000000 MHz                                   
Lasi version 0 at 0xf0100000 found.                                             
LED display at f00e0000 registered                                              
Wax at 0xf0200000 found.                                                        
Wax: HIL Keyboard-NMI registered.                                               
Wax EISA Adapter found at 0xfc000000                                           !
busdevice_alloc_irq(0x1003b8c0): No known LASI/ASP/WAX owns device at 0xf020000 
EISA: failed to claim IRQ                                                       
Warning : device (11, 0x28, 0x0, 0x90) NOT claimed by EISA Bus Adapter
.....
As you see, your iotree inserts "phantom" devices on [2/0] an [5/0]. I think both
devices should be pre-initialized by default to type HPHW_FAULTY and to the hpa of the
parent device in the function alloc_tree_node().
The other thing is, that currently no interrupts are found for any devices - I'll investigate that
later but think this shouldn't be so hard to fix either.

Nevertheless I think you should commit your patch. The remaining bugs can be easily 
fixed afterwards.

Greetings,
Helge

On Saturday 20 October 2001 00:59, Ryan Bradetich wrote:
> Hello parisc-linux hackers,
>
> Here is the patch for the I/O Tree for the System Map firmware
> boxes.  I believe the I/O tree for legacy firmware is already in
> the cvs repository, and I need to get access to a PAT firmware
> box to finish the iotree for PAT firmware.
>
>
> Please test this patch out and report any problems.  I would
> like to get this patch committed to the repository so we can
> finally use the multiple IOMMUs present in the ccio boxes,
> etc.
>
>
> I have tested this patch on C200 and K460.
>
> Thanks,
>
> - Ryan
>
> P.S. Thanks to willy for all his help, reviews and general
> rewrite to put this patch in its current state!





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From: Ben Collins <bcollins@debian.org>
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Subject: [parisc-linux] Re: Fix for hppa-linux ld.so with newer binutils
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On Sat, Oct 20, 2001 at 05:09:07PM +0930, Alan Modra wrote:
> Newer binutils don't initialise .got entries for global syms, so the
> scheme used by sysdeps/hppa/dl-machine.h:elf_machine_dynamic to find
> the address of .dynamic no longer works.
> 
> ChangeLog
> 	* sysdeps/hppa/dl-machine.h (elf_machine_dynamic):  Make it a
> 	const function.  Do not use &_DYNAMIC as .got entries for global
> 	syms are no longer initialised.  Instead they rely on the reloc,
> 	which hasn't yet been applied.
> 	(elf_machine_load_address): Make it const.  Call
> 	elf_machine_dynamic as that function is called fropm rtld anyway.

Is this the fix for a newly built ld.so segfaulting? If so, there seems
to be something else wrong too. Newly built ld.so still segfaults,
here's the gdb:

Starting program: /usr/src/glibc/glibc-2.2.4/./hppa-linux/obj/elf/ld.so

Program received signal SIGSEGV, Segmentation fault.
0x41003298 in _dl_start_final (arg=0xbff00414, bootstrap_map_p=0xbff00508, start_time=1090519040)
    at rtld.c:233
233       _dl_rtld_map.l_addr = bootstrap_map_p->l_addr;
(gdb) print bootstrap_map_p
$1 = (struct link_map *) 0xbff00508
(gdb) print bootstrap_map_p->l_addr
$2 = 1090519040
(gdb) print &_dl_rtld_map
$3 = (struct link_map *) 0x41029270
(gdb) print _dl_rtld_map.l_addr
$4 = 0


This is with binutils 2.11.92.0.7 and gcc-3.0.2 snapshot from 9-22-2001
(latest Debian packages available). I can give you more info if you need
it.

-- 
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From - Thu Nov 08 21:20:00 2018
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To: tsbogend@alpha.franken.de,
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Hello all,

Just a followup:

joel.soete@freebel.net wrote:
> 
> Hi Thomas,
> 
> Quoting Thomas Bogendoerfer <tsbogend@elvis.franken.de>:
> 
> > On Mon, Oct 15, 2001 at 04:49:03PM +0100, Richard Hirst wrote:
> > > > (EE) No OS PCI support available
> > >
> > > Do you have PCI support enabled in your kernel?
> >
> > shouldn't matter. I bet the framebuffer runs in a different resolution
> > than
> > it's configured in XF86Config. Since the current stifb doesn't support
> > mode switching, I've made the check very strict to not allow it. So
> > the boot time resolution and bpp must match that from XF86Config.
> >
> > Thomas.
> >
> Sorry for NEWBIES (as I am in term of X configuration) what means bpp?
> 
> Well I found what I have to change in my config file to make xdm works.
> Just a problem:
> After the xdm start everything seems to works fine (right colors, mouse
> working,...). Then I login: ok the pointer still work, I can work in the default
> xterm,...
> But when I exit mouse does not move any more and I had to restart xdm.

This problem continu but...

> 
> (Um.., on my B180 I thing have to update Xfree 4.0 to 4.1 the mouse does not
> work at all but gpm well)

this one Thomas Marteau kindely help me to find out that in 'Section
pointer' of XFconfig the 'Device "/dev/mouse"'.
And if on the 712 /dev/mouse is well a link to /dev/psaux, on the
contrary on the B180L the /dev/mouse was wrongly a link to /dev/gpmdata.

Thanks again to Thomas and all for help,

	Joel




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On Sat, Oct 20, 2001 at 09:54:06AM -0400, Ben Collins wrote:
> On Sat, Oct 20, 2001 at 05:09:07PM +0930, Alan Modra wrote:
> > 	* sysdeps/hppa/dl-machine.h (elf_machine_dynamic):  Make it a
> > 	const function.  Do not use &_DYNAMIC as .got entries for global
> > 	syms are no longer initialised.  Instead they rely on the reloc,
> > 	which hasn't yet been applied.
> > 	(elf_machine_load_address): Make it const.  Call
> > 	elf_machine_dynamic as that function is called fropm rtld anyway.
> 
> Is this the fix for a newly built ld.so segfaulting? If so, there seems
> to be something else wrong too. Newly built ld.so still segfaults,
> here's the gdb:

alan@tea:~$ /lib/ld.so.1 
Usage: ld.so [OPTION]... EXECUTABLE-FILE [ARGS-FOR-PROGRAM...]
You have invoked `ld.so', the helper program for shared library executables.
[snip]

no problems here.

sourceware CVS binutils as of a few minutes ago, debian glibc-2.2.4-3
with willy's patch (ftp://ftp.parisc-linux.org/patches/glibc22-hppa.dpatch)
+ mine, gcc from pehc 3.0.2 20010829.

So, I'm using a newer binutils but older gcc.  The old gcc was an
accident - I'll try again with something more recent.  binutils, gcc and
glibc freshly built on an x86-linux system, first building xtools then
native ones.

> Program received signal SIGSEGV, Segmentation fault.
> 0x41003298 in _dl_start_final (arg=0xbff00414, bootstrap_map_p=0xbff00508, start_time=1090519040)
>     at rtld.c:233
> 233       _dl_rtld_map.l_addr = bootstrap_map_p->l_addr;
> (gdb) print bootstrap_map_p
> $1 = (struct link_map *) 0xbff00508
> (gdb) print bootstrap_map_p->l_addr
> $2 = 1090519040
> (gdb) print &_dl_rtld_map
> $3 = (struct link_map *) 0x41029270
> (gdb) print _dl_rtld_map.l_addr
> $4 = 0

That's weird.  Looks like _dl_rtld_map is in a read-only segment, when
it ought to be in .bss

alan@tea:~$ nm /lib/ld.so.1 | grep dl_rtld_map
00029368 b _dl_rtld_map
alan@tea:~$ objdump -h /lib/ld.so.1 | grep '\.bss'
 15 .bss          00000f9c  00029220  00029220  00019220  2**3

Hmm, I wonder if the machine instructions actually doing the assignment
have relocs that haven't been applied for some reason.  That would
probably result in your ld.so trying to write to 0x29270.






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From: Ben Collins <bcollins@debian.org>
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On Sun, Oct 21, 2001 at 12:04:44AM +0930, Alan Modra wrote:
> On Sat, Oct 20, 2001 at 09:54:06AM -0400, Ben Collins wrote:
> > On Sat, Oct 20, 2001 at 05:09:07PM +0930, Alan Modra wrote:
> > > 	* sysdeps/hppa/dl-machine.h (elf_machine_dynamic):  Make it a
> > > 	const function.  Do not use &_DYNAMIC as .got entries for global
> > > 	syms are no longer initialised.  Instead they rely on the reloc,
> > > 	which hasn't yet been applied.
> > > 	(elf_machine_load_address): Make it const.  Call
> > > 	elf_machine_dynamic as that function is called fropm rtld anyway.
> > 
> > Is this the fix for a newly built ld.so segfaulting? If so, there seems
> > to be something else wrong too. Newly built ld.so still segfaults,
> > here's the gdb:
> 
> alan@tea:~$ /lib/ld.so.1 
> Usage: ld.so [OPTION]... EXECUTABLE-FILE [ARGS-FOR-PROGRAM...]
> You have invoked `ld.so', the helper program for shared library executables.
> [snip]
> 
> no problems here.
> 
> sourceware CVS binutils as of a few minutes ago, debian glibc-2.2.4-3
> with willy's patch (ftp://ftp.parisc-linux.org/patches/glibc22-hppa.dpatch)
> + mine, gcc from pehc 3.0.2 20010829.
> 
> So, I'm using a newer binutils but older gcc.  The old gcc was an
> accident - I'll try again with something more recent.  binutils, gcc and
> glibc freshly built on an x86-linux system, first building xtools then
> native ones.

The binutils may be the difference. I think Randolph said there was a
patch in CVS that was needed. I'll wait and see if that new package
works.

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Subject: Re: [parisc-linux] [PATCH] The long awaited iotree patch for System Map Firmware
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On Sat, Oct 20, 2001 at 12:02:53PM +0200, Helge Deller wrote:
> 2. Mirage Jr Core BA (11) at 0xf0100000 [2], versions 0x28, 0x0, 0x81
> 3.  (0) at 0x0 [2/0], versions 0x0, 0x0, 0x0
> 4. Mirage Jr Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x28, 0x0, 0x82

OK.  So we should skip printing devices which don't have an hpa.

> 12. Mirage Jr Wax EISA BA (11) at 0xfc000000 [4], versions 0x28, 0x0, 0x90
> 13. Mirage Jr Wax BA (11) at 0xf0200000 [5], versions 0x12, 0x0, 0x8e

Mmmmpf.  That complicates thngs a little; I assumed the EISA BA was
actually under the normal BA.

> CONFIG_SMP=n  ignoring additional CPUs
> Warning : device (0, 0x0, 0x0, 0x0) NOT claimed by CPU
> CONFIG_SMP=n  ignoring additional CPUs
> Warning : device (0, 0x60a, 0x0, 0x4) NOT claimed by CPU

Hehe, yes, devices not completely filled in look like CPUs.  Oops :-)

> As you see, your iotree inserts "phantom" devices on [2/0] an [5/0]. I think both
> devices should be pre-initialized by default to type HPHW_FAULTY and to the hpa of the
> parent device in the function alloc_tree_node().

I agree about HPHW_FAULTY.  I don't think we need to initialise the hpa
though.  Maybe a new HPHW_FAKE instead?  It's not necessarily confusing,
since devices which actually report HPHW_FAULTY never get inserted into
the iotree.

> The other thing is, that currently no interrupts are found for any devices - I'll investigate that
> later but think this shouldn't be so hard to fix either.

I know why that is.  Basically we need to get lasi (and wax) to fix up
their subdevices the same way that asp does.  Then we can finally kill
busdevice_alloc_irq.  As a quick hack, we could check parent->hw_type ==
HPHW_FAULTY in busdevice_alloc_irq and skip to that parent.

Not quite sure how to handle Wax EISA not being underneath the Wax BA..
maybe just walk from wax's parent to fill in known irqs.

-- 
Revolutions do not require corporate support.




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> Newer binutils don't initialise .got entries for global syms, so the
> scheme used by sysdeps/hppa/dl-machine.h:elf_machine_dynamic to find
> the address of .dynamic no longer works.
> 
> ChangeLog
> 	* sysdeps/hppa/dl-machine.h (elf_machine_dynamic):  Make it a
> 	const function.  Do not use &_DYNAMIC as .got entries for global
> 	syms are no longer initialised.  Instead they rely on the reloc,
> 	which hasn't yet been applied.
> 	(elf_machine_load_address): Make it const.  Call
> 	elf_machine_dynamic as that function is called fropm rtld anyway.
>

I was beggining to wonder...

  /* Figure out the run-time load address of the dynamic linker itself.  */
  bootstrap_map.l_addr = elf_machine_load_address ();

  /* Read our own dynamic section and fill in the info array.  */
  bootstrap_map.l_ld = (void *) bootstrap_map.l_addr + elf_machine_dynamic ();
  elf_get_dynamic_info (&bootstrap_map);

_dl_start (0x41002b74).... 
_dl_start+312 (Assertion failure with wrong address for initialized data) 

Why aren't .got entries being initialised?

So you are saying we need to make all of our global symbols constant
so that we can access them during the bootstrap? (No more _DYNMAIC?)

And that elf_machine_load_address is trying to access symbols that aren't
setup yet, because ELF_DYNAMIC_RELOCATE() hasn't been run yet?
And thus hasn't setup any of our offsets... where has my pic code gone ;(

c.





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On Wednesday 17 October 2001 02:42 am, Matt Taggart wrote:
> Not yet, hopefully later this week. When it does I will post a script to
> munge your checked out cvs trees so you don't have to check out from
> scratch.

Would gcc/contrib/newcvsroot in current cvs do the job?

> Stay tuned...

While re-organizing things, would it be possible to get lxr pointed at the 
current development cvs?  Seems to still point at linux-2.3 of Aug-10-2000.

Mike




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Hi,

I want to put a large SCSI disk either 9.1G or 18.2G SCSI disk on a HP
735/125 does anyone know if this will work under PARISC-linux and will I be
able to see the whole disk?

Thanks in advance

Steve Grady




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Subject: Re: [parisc-linux] Large SCSI disks on a 735/125
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On Sun, Oct 21, 2001 at 08:05:16AM +1000, Steve.Grady@csiro.au wrote:
> I want to put a large SCSI disk either 9.1G or 18.2G SCSI disk on a HP
> 735/125 does anyone know if this will work under PARISC-linux and will I be
> able to see the whole disk?

The only thing to beware of is that palo can only access the first
2GB of the disc, so the kernel that it loads has to be in this area.
It is possible to fix palo to work for >2GB partitions, but nobody's
done that yet.

-- 
Revolutions do not require corporate support.




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> On Sun, Oct 21, 2001 at 08:05:16AM +1000, Steve.Grady@csiro.au wrote:
> > I want to put a large SCSI disk either 9.1G or 18.2G SCSI disk on a HP
> > 735/125 does anyone know if this will work under PARISC-linux and will I be
> > able to see the whole disk?
>
> The only thing to beware of is that palo can only access the first
> 2GB of the disc, so the kernel that it loads has to be in this area.
> It is possible to fix palo to work for >2GB partitions, but nobody's
> done that yet.

What this means is that you can create a small /boot partition
at the front of the disk, and then create as many other partitions
as you want. Other than the palo limit, which only affects the partition
you boot from, the partitions can be > 2Gb.

However, the other thing to be aware of is that the Fast Wide SCSI
Is not yet supported (at least last time I checked) on the 735. The
SE SCSI adapter will work though.

John Marvin
jsm@fc.hp.com




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Steve.Grady@csiro.au wrote:
> Hi,
> 
> I want to put a large SCSI disk either 9.1G or 18.2G SCSI disk on a HP
> 735/125 does anyone know if this will work under PARISC-linux and will I be
> able to see the whole disk?

large disks are not a problem.
The question is will you be able to find a 9 or 18GB disk
with either SE SCSI or HVD SCSI interface which the 735
can connect to.

grant




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I'm tearing my hair out, and glad I've never tried debian before...

I got 0.92 installed and running on my B132L, but for the life of
me can't figure out how in the !@#$ to use the package tools
to do anything useful (like install X or see what packages are
in ftp.us.debian.org/debian/dists/unstable/main/binary-hppa/

I have also failed to find any useful docs/tutorials on the matter.

Could someone please post a link to a useful howto or write a
mini-howto up?  So far, these package tools have seemed rather
daunting...

Nick





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On Sat, 20 Oct 2001, Nicholas Leippe wrote:
> I'm tearing my hair out, and glad I've never tried debian before...
>
> I got 0.92 installed and running on my B132L, but for the life of
> me can't figure out how in the !@#$ to use the package tools
> to do anything useful (like install X or see what packages are
> in ftp.us.debian.org/debian/dists/unstable/main/binary-hppa/
>
> I have also failed to find any useful docs/tutorials on the matter.
>
> Could someone please post a link to a useful howto or write a
> mini-howto up?  So far, these package tools have seemed rather
> daunting...

Here's the basic one I found. It's for i386, but I don't think I've found
much different...

http://www.debian.org/releases/stable/i386/dselect-beginner

Hope that helps!





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From: Nicholas Leippe <nick@byu.edu>
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Subject: Re: [parisc-linux] how to use dpkg/dselect/apt-get ???
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Thankyou for the link.  Unfortunately, I've already read that one
and found it of little help.

Let me ask a few specific questions:

1) How do I know that it's looking at hppa packages and not x86
packages?  And if it's seeing x86, how do I fix it?

2) How can I 'collapse' the ridiculously long (3000+) list of
packages into just group headings?

3) How can I search the list so I can find, for example, 'X11'
to '+' it and let it figure out what else is needed and then
install it?

4) Is there a better package interface than dselect?
(rh/caldera/mdk's glint is 3+ yrs old and is still far superior
to dselect--you can actually _understand_ what you're looking at)

I am not against whatever debian uses considering all the wonderful
features it's supposed to have, just rather annoyed that it is such a
difficult/disgusting interface.


Nick

p.s. is there a way to get it to actually highlight the line your on?
it only echos the line in the middle of the screen for me, which is
really gross.




From - Thu Nov 08 21:20:01 2018
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] how to use dpkg/dselect/apt-get ???
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You may want to try install deity-curses (aka console-apt). I'd like to
think it's easier to use :-)

> 3) How can I search the list so I can find, for example, 'X11'
> to '+' it and let it figure out what else is needed and then
> install it?

in dselect, you can search using / (like vi)
there's decent online help using 'h'.

> 4) Is there a better package interface than dselect?
> (rh/caldera/mdk's glint is 3+ yrs old and is still far superior
> to dselect--you can actually _understand_ what you're looking at)

well, many people find dselect easy to understand too, but i can see how
it's daunting. do give deity a try and see if that's easier for you.
 
> I am not against whatever debian uses considering all the wonderful
> features it's supposed to have, just rather annoyed that it is such a
> difficult/disgusting interface.

most of us just install things from command-line. For example, you can
do 'apt-get install x-window-system' from the command-line (as root)
once your system is up and running. 'apt-get update' updates your
"package sources" from the debian mirrors, and 'apt-get upgrade' will
install the newest versions of what you have on your system.

you can use 'apt-cache search <pattern>' to look at available packages.
There's also a web interface, http://packages.debian.org/

to use apt you need to have a correct /etc/apt/sources.list file. If the
installer didn't set one up for you, you can use something like this:

=================
deb http://http.us.debian.org/debian unstable main contrib non-free
deb http://debian.yorku.ca/debian/non-US unstable non-US/main non-US/contrib 
deb-src http://http.us.debian.org/debian unstable main contrib non-free
=================

as for mixing i386 and hppa, it won't happen; the debian package tools
are all arch-specific and will only look at the arch it's running on.

hope this helps.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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On Saturday 20 October 2001 22:20, you wrote:
> You may want to try install deity-curses (aka console-apt). I'd like to
> think it's easier to use :-)

I'll have to try that

> > 3) How can I search the list so I can find, for example, 'X11'
> > to '+' it and let it figure out what else is needed and then
> > install it?
>
> in dselect, you can search using / (like vi)
> there's decent online help using 'h'.

I just barely noticed the '/' option.

[snip]
> well, many people find dselect easy to understand too, but i can see how
> it's daunting. do give deity a try and see if that's easier for you.
>
> > I am not against whatever debian uses considering all the wonderful
> > features it's supposed to have, just rather annoyed that it is such a
> > difficult/disgusting interface.
>
> most of us just install things from command-line. For example, you can
> do 'apt-get install x-window-system' from the command-line (as root)
> once your system is up and running. 'apt-get update' updates your
> "package sources" from the debian mirrors, and 'apt-get upgrade' will
> install the newest versions of what you have on your system.
>
> you can use 'apt-cache search <pattern>' to look at available packages.
> There's also a web interface, http://packages.debian.org/

This is exactly the kind of stuff that oughta be on the front page of
the install howto, there's no way I'd know it was called 'x-window-system',
nor how on earth I could possibly find out.  Thanks.

> to use apt you need to have a correct /etc/apt/sources.list file. If the
> installer didn't set one up for you, you can use something like this:
>
> =================
> deb http://http.us.debian.org/debian unstable main contrib non-free
> deb http://debian.yorku.ca/debian/non-US unstable non-US/main
> non-US/contrib deb-src http://http.us.debian.org/debian unstable main
> contrib non-free =================
>
> as for mixing i386 and hppa, it won't happen; the debian package tools
> are all arch-specific and will only look at the arch it's running on.

I noticed it was only getting *hppa.debs, so figure it must be smart enough.

> hope this helps.

Yes, it does.  Thanks.

Nick




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On Sat, Oct 20, 2001 at 08:49:40PM -0600, Randolph Chung wrote:
> - adds support for /dev/perf (major 10, minor 146)
> supports the same ioctls and write formats as the hpux equiv
> TLB patching code is not yet done
> only enabled for 64-bit kernels

umm..

                146 = /dev/graphics     Linux/SGI graphics device

could you try getting a minor number assigned by lanana.org pleases?

-- 
Revolutions do not require corporate support.




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On Sat, Oct 20, 2001 at 02:01:53PM -0400, Carlos O'Donell Jr. wrote:
> 
> Why aren't .got entries being initialised?

The special reserved .got entries are still initialised.  The others
which have relocations don't need to be initialised as the reloc will
set the value.  It was only an accident that entries against _DYNAMIC
(_not_ the special reserved entry with the value of _DYNAMIC) were
previously being initialised.

> So you are saying we need to make all of our global symbols constant
> so that we can access them during the bootstrap? (No more _DYNMAIC?)
> 
> And that elf_machine_load_address is trying to access symbols that aren't
> setup yet, because ELF_DYNAMIC_RELOCATE() hasn't been run yet?
> And thus hasn't setup any of our offsets... where has my pic code gone ;(

As you say, the problem is solved by pic code, and that's exactly how
the new hppa version of elf_machine_dynamic works.

Note that glibc ld.so still has a problem on hppa if it ever hits any
of the asserts in dynamic-link.h:elf_get_dynamic_info, as these all try
to make reference to their string args at the unrelocated address.

Alan





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From: Daniel Engstrom <5116@telia.com>
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Subject: [parisc-linux] New 53c700 driver preformance evaluation
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Hi,

When I got the new driver running I also did some more bonnie runs with the
following drivers: 
2.4.9-pa32 with the old driver and disconnects disbled
2.4.9-pa61 with the new driver and tagged-queueing disabled
HPUX 10.20

I also did one test with putc and getc changed to the unlocked versions
to see what impact the thread safety had. It was large.

I wonder if the lower speed for block I/O with the new driver is due to the
disabled disconnects?

/Daniel

            --------Sequential Output-------- ---Sequential Input--- --Random--
            -Per Char- --Block--- -Rewrite--- -Per Char- --Block---- --Seeks----
Machine MB K/sec  %CPU K/sec %CPU  K/sec %CPU K/sec %CPU K/sec %CPU  /sec  %CPU
pa32_1 100   313  99.7 3682  68.9  1162  37.5  253  94.9  2545  43.7  75.5  11.9
pa32_2 100   314 100.0 3650  68.3  1175  38.0  252  94.8  2548  43.5  74.1  12.1
pa32_3 100   314 100.0 3641  67.9  1185  38.1  252  94.7  2567  43.2  71.9  12.0

pa61_1 100   314 100.0 2839  51.6   971  32.0  252  95.1  2465  42.5  72.5  11.5
pa61_2 100   313  99.7 2871  53.8   996  33.3  252  94.6  2478  43.0  63.3  10.1
pa61_3 100   313 100.0 2865  52.3   998  32.5  251  94.3  2484  43.2  69.3  11.1

pa61ul 100  1373  97.8 2941  53.7   997  32.4  993  71.1  2444  42.3  67.2  11.4

hpux_1 100   597  98.3 2882  38.4  1530  31.0  405  96.9  3644  41.9  72.8  13.4
hpux_2 100   594  98.4 2930  36.6  1526  28.5  403  96.8  3625  39.3  72.8  13.3
hpux_3 100   599  98.4 2883  37.1  1541  29.9  407  97.2  3646  41.7  72.0  13.1
 

 -- 




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In-Reply-To: <200110202311.RAA22159@puffin.external.hp.com> from "Grant Grundler" at Oct 20, 2001 05:11:53 pm
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Xref: news.gmane.org gmane.linux.ports.parisc:12757

> The question is will you be able to find a 9 or 18GB disk
> with either SE SCSI or HVD SCSI interface which the 735
> can connect to.

What about a Seagate ST318417N?  It is: 18.4GB, 7200 rpm, 8.5 ms seek avg,
Ultra SCSI, suggested resale price $269.  While you can still find a HVD
drive it looks like they are rapidly going the way of the dodo bird.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)




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> The only thing to beware of is that palo can only access the first
> 2GB of the disc, so the kernel that it loads has to be in this area.
> It is possible to fix palo to work for >2GB partitions, but nobody's
> done that yet.

The firmware call which supports >2GB access may not be available
in that box -- I'm not sure when it became available.  Linux will
have no problem accessing the whole drive however.

	-P




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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] small patch for cpu_idle?
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It appears to me that our cpu_idle is not quite right... what do you
guys think about this:

Index: process.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/process.c,v
retrieving revision 1.38
diff -u -r1.38 process.c
--- process.c   2001/10/09 19:43:35     1.38
+++ process.c   2001/10/21 17:46:53
@@ -67,8 +67,8 @@
        current->counter = -100;
 
        while (1) {
-               while (!current->need_resched) {
-               }
+               while (!current->need_resched) 
+                       continue;
                schedule();
                check_pgt_cache();
        }

otherwise when cpu_idle gets called we might get stuck in an inf loop
(which happens, for example, when fsck requires manual intervention on
startup).

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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From: Jochen Friedrich <jochen+parisc-linux@scram.de>
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Subject: [parisc-linux] Latest debian binutils broken?
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Hi,

with the latest debian binutils, as immediately crashes on my 720:

hp720:~# uname -a
Linux hp720.bocc.de 2.4.9-pa59 #1 Wed Oct 17 21:38:10 CEST 2001 parisc unknown
hp720:~# dpkg -l binutils
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  binutils       2.11.92.0.7-2  The GNU assembler, linker and binary utiliti
hp720:~# as
Segmentation fault

do_page_fault() pid=370 command='as' type=6 address=0x00000003

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000100001111
r0-3     00000000 00067d80 40093323 bff003c0
r4-7     400b1b98 4002a09c 40028a64 bff00164
r8-11    bff0015c 00000001 00000001 000c49f0
r12-15   00000000 ffffffff 000c4dd0 00000000
r16-19   00000000 00000004 00000004 400b1b98
r20-23   00000000 40032ce0 00000000 400288f8
r24-27   bff00164 bff0015c 00000001 0005fbe4
r28-31   40029ca2 7efefeff bff00440 40093323
sr0-3    00000000 00000005 00000000 00000005
sr4-7    00000005 00000005 00000005 00000005

IASQ: 00000005 00000005 IAOQ: 00000003 00000007
 IIR: 2022e202    ISR: 00000005  IOR: 00067d7c
 CPU:        0   CR30: 105f0000 CR31: 102f0000
 ORIG_R28: 4002a09c

Looks like a classical NULL-pointer to me...

Cheers,
Jochen





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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] small patch for cpu_idle?
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On Sun, Oct 21, 2001 at 10:52:27AM -0700, Randolph Chung wrote:
> It appears to me that our cpu_idle is not quite right... what do you
> guys think about this:
>         while (1) {
> -               while (!current->need_resched) {
> -               }
> +               while (!current->need_resched) 
> +                       continue;
>                 schedule();
>                 check_pgt_cache();
>         }
> 
> otherwise when cpu_idle gets called we might get stuck in an inf loop
> (which happens, for example, when fsck requires manual intervention on
> startup).

I don't see any difference between

while (foo) { }

and

while (foo) continue;

need_resched is volatile:
        volatile long need_resched;

so I don't see that your change should have any effect.  Does it actually
generate different code?

-- 
Revolutions do not require corporate support.




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From: rbradetich@uswest.net (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] I/O Tree patch ... CVS Head will be unstable for the next few days.
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Hello parisc-linux hackers,

The general consensus between the developers is to commit the I/O
tree patch, and fix what is broken.  So I am going to commit the
patch to CVS and start working on bug reports, etc.  

Right now we are pretty sure PAT boxes are broken ... but Grant
has given me access to an A500 to work on so I can fix PAT boxes
to use iotree. 

If you are interested in kernel stability, do not run CVS head
for a couple of days.  I will probably send out another message
once we feel the kernel has stabalized.

Thanks,

- Ryan

P.S. I will start committing the iotree patch in an hour or
so giving anyone a (short) chance to get the latest CVS head
before I commit the patch.




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Subject: Re: [parisc-linux] Large SCSI disks on a 735/125
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"John David Anglin" writes...

> > The question is will you be able to find a 9 or 18GB disk
> > with either SE SCSI or HVD SCSI interface which the 735
> > can connect to.
> 
> What about a Seagate ST318417N?  It is: 18.4GB, 7200 rpm, 8.5 ms seek avg,
> Ultra SCSI, suggested resale price $269.  While you can still find a HVD
> drive it looks like they are rapidly going the way of the dodo bird.

I think that should work.

Last year sometime I saw Paul Bame install an 18GB 10k RPM LVD Seagate
Cheetah drive in a 712 and install parisc-linux on it. It worked great :)

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation




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I am _not_ going to quote anybody, because then it might be assumed I am 
disputing _somebody's_ point of view, instead of a _particular_ one. So 
here goes.

Think of a word "processor". In a community of computer-relating people 
this word will have an assumed specific meaning of a "central processing 
unit". In a community of food-relating people it may mean "food processor". 
In a community of paperwork-relating people it may mean a "application 
processor", ie: person that processes applications. The point is, all 
communities have their own meanings for words or expressions, and a whole 
set of assumptions that go with them. It's not wrong or right. Just different.

Debian model was chosen for PA linux. dpkg/dselect and friends go with this 
choice. It may be unfamiliar to some, but it is just _different_. When You 
switch over from HPUX to AIX, You have no sam to help You, You have 
smit/ty. It's different. You need to get to know the new guy. He's not here 
to hurt You, but help You. But You won't know how to ask for help, until 
You learn how to convey what You need to him. He assumes certain things, 
and so do You. The trick is to get those two sets as close as possible. 
When You know him _that_ well, then You can start working on changing him. 
Criticizing him or his assumptions, MO and so on will not work until You 
know everything that can be done with this new - in this case - tool. Get 
to know it, then Your criticism will have far more weight.

And, as a parting note, I am as bewildered by it as some. Esp since I used 
package commands on Solaris, and it ain't the same, despite similar 
sounding names... But I'm learning. 





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From: Alan Modra <amodra@bigpond.net.au>
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Subject: Re: [parisc-linux] Latest debian binutils broken?
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Xref: news.gmane.org gmane.linux.ports.parisc:12765

On Sun, Oct 21, 2001 at 09:34:34PM +0200, Jochen Friedrich wrote:
> 
> with the latest debian binutils, as immediately crashes on my 720:

ldd as ?

http://lists.parisc-linux.org/pipermail/parisc-linux/2001-October/014230.html
might be relevant if "as" is dynamic.





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From: Randolph Chung <tausq@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] small patch for cpu_idle?
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Xref: news.gmane.org gmane.linux.ports.parisc:12766

> I don't see any difference between
> 
> while (foo) { }
> 
> and
> 
> while (foo) continue;

i was obviously smoking something funny :-(

ok, i'll look into more why i get a hang in cpu_idle when fsck requires
manual intervention on startup.

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/




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From: Matt.VanDeWerken@csiro.au
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] RE: Writing an HPPA Linux CD IMAGE from NT
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> -----Original Message-----
> From: Bill Ferguson [mailto:ferguson@quango.net]
> Sent: Monday, 22 October 2001 11:38 AM
> To: debian-hppa@lists.debian.org
> Subject: Writing an HPPA Linux CD IMAGE from NT
> 
> 
> At 06:33 PM 10/16/2001 +0100, you wrote:
> 
> >Hi Dean,
> >
> >You need to tell the CD writter to put the iso image on the 
> CD without
> >putting a filesystem around it. How you do that depends on 
> the burning
> >software. Some lame software might not even do it. [[Trying 
> hard not to
> >say anything nasty about NT.]
> 
> 
> In the interest of ecumenical peace among OS's, here's how to 
> burn a CD
> from NT assuming you have NERO CD Burner software and a TDK drive...
> 
> 

In the same interests, here's how to do it assuming Roxio/Adaptec Easy CD
Creator:

* Place blank CD in drive;
* Use Explorer to find the .iso image;
* Double click on .iso image;
* Wait for CD Creator to start;
* Press "Record" button;
* Wait for cd writing to finish.

Cheers,
Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - 4069 - AUSTRALIA
ph:  +61-7-3327 4685     fax:  +61-7-3327 4455
email:  matt.vandewerken@csiro.au




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From: Alan Modra <amodra@bigpond.net.au>
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Subject: Re: [parisc-linux] Re: Fix for hppa-linux ld.so with newer binutils
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Cc: "Carlos O'Donell Jr." <carlos@megatonmonkey.net>,
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To: Ben Collins <bcollins@debian.org>,
	parisc-linux@lists.parisc-linux.org, randolph@tausq.org
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Xref: news.gmane.org gmane.linux.ports.parisc:12768

On Sun, Oct 21, 2001 at 12:04:43AM +0930, Alan Modra wrote:
> alan@tea:~$ /lib/ld.so.1 
> Usage: ld.so [OPTION]... EXECUTABLE-FILE [ARGS-FOR-PROGRAM...]
> You have invoked `ld.so', the helper program for shared library executables.
> [snip]
> 
> no problems here.
> 
> sourceware CVS binutils as of a few minutes ago, debian glibc-2.2.4-3
> with willy's patch (ftp://ftp.parisc-linux.org/patches/glibc22-hppa.dpatch)
> + mine, gcc from pehc 3.0.2 20010829.

Confession time.  I had one little patch in ld which disabled Jakub's
combreloc code as a side-effect.  (I had ldmain.c:main,
link_info.spare_dynamic_tags = 0; to minimise differences between objects
generated by new vs. old binutils).  Setting this back to 5 gives me the
segv you reported.  :-(

The reason is that binutils/bfd/elf32_hppa.c:elf32_hppa_reloc_type_class

  if (ELF32_R_SYM (rela->r_info) == 0)
    return reloc_class_relative;

disagrees with glibc/sysdeps/hppa/dl-machine.h:elf_machine_rela_relative

/* XXX Nothing to do.  There is no relative relocation, right?  */

The net result of this disagreement is that ld.so doesn't relocate any
of the relocs in reloc_class_relative.  Testing an implementation of
elf_machine_rela_relative now.

Alan





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From: aungho <aungho@sina.com>
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Subject: [parisc-linux] about linux for PA_RISC
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hi,
our server is HP L_2000 with text terminal.we made a installation CD of PA_risc linux 0.9(downloaded from http://parisc-linux.org) and use it to install.During the installation,the terminal display abnormally,showing a lot of non_ascii characters,and text display
not in order.
we tried TERM=vt102,TERM=vt102,TERM=vt102,they are all not display correctly.

b'rdgs

Wang Yang
______________________________________

===================================================================
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hi,

silence:~# apt-cache show palo
Package: palo
Priority: important
Section: base
Installed-Size: 536
Maintainer: Paul Bame <bame@debian.org>
Architecture: i386
              ^^^^
Version: 0.94
Filename: pool/main/p/palo/palo_0.94_i386.deb
                                     ^^^^
Size: 202904
MD5sum: 10b68aacf76ec6d2c54b36d17be45418
Description: Linux boot loader for parisc/hppa
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 This package contains the parisc boot loader itself, plus palo which
 is the boot media management tool as lilo is for i386.
silence:~# dpkg --print-architecture
i386


hm ?

thanks,

-- 
[-]





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Subject: [parisc-linux] RE: about linux for PA_RISC
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Hi, 

I met the same behaviour a week ago with a L2000.
I simply change my console emulation from hpterm to vt100 (see your console 
documentation to do it) and it works fine.

Enjoy,
        Joel



-------------------------------------------------
This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)




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From: "Brian S. Julin" <bri@mojo.calyx.net>
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Subject: [parisc-linux] upgrade
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Haven't touched my PA-RISC box in 6 months or so... should I
expect a smooth upgrade with APT and a CVS update of the kernel,
or should I wait for something (what?) before attempting it --
or am I hopelessly crusty and I should plan for a full re-install?

--
Brian S. Julin





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To: "Brian S. Julin" <bri@mojo.calyx.net>
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On Mon, Oct 22, 2001 at 09:20:04AM -0400, Brian S. Julin wrote:
> Haven't touched my PA-RISC box in 6 months or so... should I
> expect a smooth upgrade with APT and a CVS update of the kernel,
> or should I wait for something (what?) before attempting it --
> or am I hopelessly crusty and I should plan for a full re-install?

Should work well.  You should upgrade your kernel before you upgrade
glibc, but aprt from that I can't think of any other problems.  Beware
that the current CVS kernel is probably broken for just about everyone
except rbrad :-)

-- 
Revolutions do not require corporate support.




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From: Alan Modra <amodra@bigpond.net.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Fix for hppa-linux ld.so with newer binutils
Date: Mon, 22 Oct 2001 23:35:34 +0930
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On Sat, Oct 20, 2001 at 05:09:07PM +0930, Alan Modra wrote:
> 	* sysdeps/hppa/dl-machine.h (elf_machine_dynamic):  Make it a
> 	const function.  Do not use &_DYNAMIC as .got entries for global
> 	syms are no longer initialised.  Instead they rely on the reloc,
> 	which hasn't yet been applied.
> 	(elf_machine_load_address): Make it const.  Call
> 	elf_machine_dynamic as that function is called fropm rtld anyway.

The following, which includes the above patch, should allow glibc to
once again work on hppa-linux with current binutils.  A number of other
horrible things fixed:

a) ELF_MACHINE_PLTREL_OVERLAP defined.  This should have been defined
   right from the first hppa-linux glibc port.  Resulted in all the .plt
   relocs being processed twice, and meant that Jakub's optimisation
   with elf_machine_rel_relative didn't work.
b) It's true that hppa doesn't have an R_PARISC_RELATIVE reloc.  However,
   hppa-linux uses a scheme that gives the same benefits;  Normal relocs
   with a symbol index of zero.  Actually, this has an added benefit in
   that you can effectively have a "relative" IPLT reloc (Might be
   useful for prelinking).  I added code to binutils to tag these relocs
   as reloc_class_relative but didn't implement elf_machine_rela_relative,
   with the net result that many relocations weren't being applied.
c) .got section entries other than the reserved ones, are not longer
   read.
d) As for c) with lazy linking .plt entries.

glibc/ChangeLog
	* sysdeps/hppa/dl-fptr.h (_dl_lookup_address): Warning fix.
	* sysdeps/hppa/dl-machine.h (elf_machine_dynamic): Make it a const
	function.  Do not use &_DYNAMIC as .got entries are no longer
	initialised since we are a rela target.
        (elf_machine_load_address): Make it const.  Call
        elf_machine_dynamic as that function is called fropm rtld anyway.
	(runtime_got): New function.
	(elf_machine_runtime_setup): Use runtime_got and modify code
	handling IPLT so that .plt section contents need not be read.
	(_start): Formatting fixes.
	(ELF_MACHINE_PLTREL_OVERLAP): Define.
	(TRAMPOLINE_TEMPLATE): Don't use multi-line string literals.
	(elf_machine_rela): Likewise.
	(elf_machine_rela_relative): Implement.  Add "map" param.
	* sysdeps/alpha/dl-machine.h (elf_machine_rela_relative): Add "map".
	* sysdeps/arm/dl-machine.h (elf_machine_rel_relative): Ditto.
	* sysdeps/cris/dl-machine.h (elf_machine_rela_relative): Ditto.
	* sysdeps/i386/dl-machine.h (elf_machine_rel_relative): Ditto.
	* sysdeps/ia64/dl-machine.h (elf_machine_rela_relative): Ditto.
	* sysdeps/m68k/dl-machine.h (elf_machine_rela_relative): Ditto.
	* sysdeps/mips/mips64/dl-machine.h (elf_machine_rel_relative): Ditto.
	* sysdeps/mips/dl-machine.h (elf_machine_rel_relative): Ditto.
	* sysdeps/powerpc/dl-machine.h (elf_machine_rela_relative): Ditto.
	* sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela_relative): Ditto.
	* sysdeps/s390/s390-64/dl-machine.h (elf_machine_rela_relative): Ditto.
	* sysdeps/sh/dl-machine.h (elf_machine_rela_relative): Ditto.
	* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela_relative): Ditto
	* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela_relative): Ditto
	* sysdeps/x86_64/dl-machine.h (elf_machine_rela_relative): Ditto.
	* elf/do-rel.h (elf_dynamic_do_rel): Modify call to suit.

-- 
Alan Modra

diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/elf/do-rel.h glibc-2.2.4-3/elf/do-rel.h
--- glibc-2.2.4-3.orig/elf/do-rel.h	Mon Oct 22 14:15:44 2001
+++ glibc-2.2.4-3/elf/do-rel.h	Mon Oct 22 20:36:37 2001
@@ -86,7 +86,7 @@ elf_dynamic_do_rel (struct link_map *map
 # endif
 #endif
 	  for (; relative < r; ++relative)
-	    elf_machine_rel_relative (l_addr, relative,
+	    elf_machine_rel_relative (map, l_addr, relative,
 				      (void *) (l_addr + relative->r_offset));
 
       if (map->l_info[VERSYMIDX (DT_VERSYM)])
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/alpha/dl-machine.h glibc-2.2.4-3/sysdeps/alpha/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/alpha/dl-machine.h	Mon Oct 22 14:15:48 2001
+++ glibc-2.2.4-3/sysdeps/alpha/dl-machine.h	Mon Oct 22 12:18:30 2001
@@ -537,7 +537,8 @@ elf_machine_rela (struct link_map *map,
 }
 
 static inline void
-elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc,
+elf_machine_rela_relative (struct link_map *map, Elf64_Addr l_addr,
+			   const Elf64_Rela *reloc,
 			   Elf64_Addr *const reloc_addr)
 {
   /* XXX Make some timings.  Maybe it's preverable to test for
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/arm/dl-machine.h glibc-2.2.4-3/sysdeps/arm/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/arm/dl-machine.h	Mon Oct 22 14:15:48 2001
+++ glibc-2.2.4-3/sysdeps/arm/dl-machine.h	Mon Oct 22 12:22:09 2001
@@ -518,7 +518,8 @@ elf_machine_rel (struct link_map *map, c
 }
 
 static inline void
-elf_machine_rel_relative (Elf32_Addr l_addr, const Elf32_Rel *reloc,
+elf_machine_rel_relative (struct link_map *map, Elf32_Addr l_addr,
+			  const Elf32_Rel *reloc,
 			  Elf32_Addr *const reloc_addr)
 {
   *reloc_addr += l_addr;
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/cris/dl-machine.h glibc-2.2.4-3/sysdeps/cris/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/cris/dl-machine.h	Mon Oct 22 14:15:48 2001
+++ glibc-2.2.4-3/sysdeps/cris/dl-machine.h	Mon Oct 22 12:18:30 2001
@@ -366,7 +366,8 @@ elf_machine_rela (struct link_map *map, 
 }
 
 static inline void
-elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
+elf_machine_rela_relative (struct link_map *map, Elf32_Addr l_addr,
+			   const Elf32_Rela *reloc,
 			   Elf32_Addr *const reloc_addr)
 {
   *reloc_addr = l_addr + reloc->r_addend;
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/hppa/dl-fptr.c glibc-2.2.4-3/sysdeps/hppa/dl-fptr.c
--- glibc-2.2.4-3.orig/sysdeps/hppa/dl-fptr.c	Mon Oct 22 14:22:23 2001
+++ glibc-2.2.4-3/sysdeps/hppa/dl-fptr.c	Mon Oct 22 14:04:04 2001
@@ -188,7 +188,8 @@ _dl_lookup_address (const void *address)
   Elf32_Addr addr = (Elf32_Addr) address;
   struct hppa_fptr *f;
 
-  address = (unsigned long)address &~ 3; /* Clear the bottom two bits.  See make_fptr. */
+ /* Clear the bottom two bits.  See make_fptr. */
+  address = (const void *) ((unsigned long) address &~ 3);
 
 #ifdef _LIBC_REENTRANT
   /* Make sure we are alone.  */
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/hppa/dl-machine.h glibc-2.2.4-3/sysdeps/hppa/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/hppa/dl-machine.h	Mon Oct 22 14:22:23 2001
+++ glibc-2.2.4-3/sysdeps/hppa/dl-machine.h	Mon Oct 22 22:16:09 2001
@@ -73,45 +73,59 @@ elf_machine_matches_host (const Elf32_Eh
   return ehdr->e_machine == EM_PARISC;
 }
 
+/* Return the run-time address of .got.  */
+static inline Elf32_Addr
+runtime_got (void) __attribute__ ((const));
+
+static inline Elf32_Addr
+runtime_got (void)
+{
+  Elf32_Addr got;
+
+  asm ("b,l	1f,%0\n"
+"	depi	0,31,2,%0\n"
+"1:	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 8),%0\n"
+"	ldo	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 12)(%%r1),%0"
+       : "=r" (got) : : "r1");
+
+  return got;
+}
 
 /* Return the link-time address of _DYNAMIC.  */
 static inline Elf32_Addr
+elf_machine_dynamic (void) __attribute__ ((const));
+
+static inline Elf32_Addr
 elf_machine_dynamic (void)
 {
   Elf32_Addr dynamic;
 
-#if 0
-  /* Use this method if GOT address not yet set up.  */
-  asm (
-"	b,l	1f,%0\n"
+  asm ("b,l	1f,%0\n"
 "	depi	0,31,2,%0\n"
 "1:	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 8),%0\n"
 "	ldw	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 12)(%%r1),%0\n"
-      : "=r" (dynamic) : : "r1");
-#else
-  /* This works because we already have our GOT address available.  */
-  dynamic = (Elf32_Addr) &_DYNAMIC;
-#endif
+       : "=r" (dynamic) : : "r1");
 
   return dynamic;
 }
 
 /* Return the run-time load address of the shared object.  */
 static inline Elf32_Addr
+elf_machine_load_address (void) __attribute__ ((const));
+
+static inline Elf32_Addr
 elf_machine_load_address (void)
 {
-  Elf32_Addr dynamic, dynamic_linkaddress;
+  Elf32_Addr dynamic;
 
   asm (
 "	b,l	1f,%0\n"
 "	depi	0,31,2,%0\n"
 "1:	addil	L'_DYNAMIC - ($PIC_pcrel$0 - 8),%0\n"
-"	ldo	R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%%r1),%1\n"
-"	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 16),%0\n"
-"	ldw	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 20)(%%r1),%0\n"
-   : "=r" (dynamic_linkaddress), "=r" (dynamic) : : "r1");
+"	ldo	R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%%r1),%0\n"
+   : "=r" (dynamic) : : "r1");
 
-  return dynamic - dynamic_linkaddress;
+  return dynamic - elf_machine_dynamic ();
 }
 
 /* Fixup a PLT entry to bounce directly to the function at VALUE.  */
@@ -174,13 +188,6 @@ elf_machine_runtime_setup (struct link_m
 	      fptr = (struct hppa_fptr *) (reloc->r_offset + l_addr);
 	      if (r_sym != 0)
 		{
-		  /* Relocate the pointer to the stub.  */
-		  fptr->func += l_addr;
-		  /* Instead of the LTP value, we put the reloc offset
-		     here.  The trampoline code will load the proper
-		     LTP and pass the reloc offset to the fixup
-		     function.  */
-		  fptr->gp = iplt - jmprel;
 		  if (!got)
 		    {
 		      static union {
@@ -188,27 +195,22 @@ elf_machine_runtime_setup (struct link_m
 			Elf32_Addr i[2];
 		      } sig = {{0x00,0xc0,0xff,0xee, 0xde,0xad,0xbe,0xef}};
 
-		      /* Find our .got section.  It's right after the
-			 stub.  */
-		      got = (Elf32_Addr *) (fptr->func + GOT_FROM_PLT_STUB);
-
-		      /* Sanity check to see if the address we are
-                         going to check below is within a reasonable
-                         approximation of the bounds of the PLT (or,
-                         at least, is at an address that won't fault
-                         on read).  Then check for the magic signature
-                         above. */
-		      if (fptr->func < (Elf32_Addr) fptr + sizeof(*fptr))
-			  return 0;
-		      if (fptr->func >
-			  ((Elf32_Addr) fptr
-			   + SIZEOF_PLT_STUB
-			   + ((l->l_info[DT_PLTRELSZ]->d_un.d_val / sizeof (Elf32_Rela))
-			      * 8)))
-			return 0;
+		      got = (Elf32_Addr *) runtime_got ();
+
+		      /* The .got section is right after the .plt stub. 
+			 Check the magic signature.  */
 		      if (got[-2] != sig.i[0] || got[-1] != sig.i[1])
 			return 0; /* No lazy linking for you! */
 		    }
+
+		  /* Relocate the pointer to the stub.  */
+		  fptr->func = (Elf32_Addr) got - GOT_FROM_PLT_STUB;
+
+		  /* Instead of the LTP value, we put the reloc offset
+		     here.  The trampoline code will load the proper
+		     LTP and pass the reloc offset to the fixup
+		     function.  */
+		  fptr->gp = iplt - jmprel;
 		}
 	      else
 		{
@@ -278,22 +280,24 @@ asm (									\
 "	stw	%r25,-40(%sp)\n" /* argc */				\
 "	stw	%r24,-44(%sp)\n" /* argv */				\
 									\
-	/* We need the LTP, and we need it now. */			\
-	/* $PIC_pcrel$0 points 8 bytes past the current instruction,	\
-	   just like a branch reloc.  This sequence gets us the runtime	\
-	   address of _DYNAMIC. */					\
+	/* We need the LTP, and we need it now.				\
+	   $PIC_pcrel$0 points 8 bytes past the current instruction,	\
+	   just like a branch reloc.  This sequence gets us the		\
+	   runtime address of _DYNAMIC. */				\
 "	bl	0f,%r19\n"						\
 "	depi	0,31,2,%r19\n"	/* clear priviledge bits */		\
 "0:	addil	L'_DYNAMIC - ($PIC_pcrel$0 - 8),%r19\n"			\
 "	ldo	R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%r1),%r26\n"		\
 									\
-	/* Also get the link time address from the first entry of the GOT.  */ \
+	/* The link time address is stored in the first entry of the	\
+	   GOT.  */							\
 "	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 16),%r19\n"	\
 "	ldw	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 20)(%r1),%r20\n" \
 									\
 "	sub	%r26,%r20,%r20\n"	/* Calculate load offset */	\
 									\
-	/* Rummage through the dynamic entries, looking for DT_PLTGOT.  */ \
+	/* Rummage through the dynamic entries, looking for		\
+	   DT_PLTGOT.  */						\
 "	ldw,ma	8(%r26),%r19\n"						\
 "1:	cmpib,=,n 3,%r19,2f\n"	/* tag == DT_PLTGOT? */			\
 "	cmpib,<>,n 0,%r19,1b\n"						\
@@ -313,8 +317,8 @@ asm (									\
 	   |         32 bytes of magic       |				\
 	   |---------------------------------|				\
 	   | 32 bytes argument/sp save area  |				\
-	   |---------------------------------|  ((current->mm->env_end) + 63 & ~63) \
-	   |         N bytes of slack        |				\
+	   |---------------------------------|  ((current->mm->env_end)	\
+	   |         N bytes of slack        |	 + 63 & ~63)		\
 	   |---------------------------------|				\
 	   |      envvar and arg strings     |				\
 	   |---------------------------------|				\
@@ -382,7 +386,7 @@ asm (									\
 "	bl	_dl_init,%r2\n"						\
 "	ldo	4(%r23),%r23\n"	/* delay slot */			\
 									\
-	/* Reload argc, argv  to the registers start.S expects them in (feh) */ \
+	/* Reload argc, argv to the registers start.S expects.  */	\
 "	ldw	-40(%sp),%r25\n"					\
 "	ldw	-44(%sp),%r24\n"					\
 									\
@@ -394,8 +398,8 @@ asm (									\
 "	.word	0xdeadbeef\n"						\
 "	.previous\n"							\
 									\
-	/* %r3 contains a function pointer, we need to mask out the lower \
-	 * bits and load the gp and jump address. */			\
+	/* %r3 contains a function pointer, we need to mask out the	\
+	   lower bits and load the gp and jump address. */		\
 "	depi	0,31,2,%r3\n"						\
 "	ldw	0(%r3),%r2\n"						\
 "	addil	LT'__dl_fini_plabel,%r19\n"				\
@@ -413,42 +417,40 @@ asm (									\
    Enter with r19 = reloc offset, r20 = got-8, r21 = fixup ltp.  */
 #define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name) \
   extern void tramp_name (void);		    \
-  asm ( "\
-	/* Trampoline for " #tramp_name " */
-	.globl " #tramp_name "
-	.type " #tramp_name ",@function
-" #tramp_name ":
-	/* Save return pointer */
-	stw	%r2,-20(%sp)
-	/* Save argument registers in the call stack frame. */
-	stw	%r26,-36(%sp)
-	stw	%r25,-40(%sp)
-	stw	%r24,-44(%sp)
-	stw	%r23,-48(%sp)
-	/* Build a call frame. */
-	stwm	%sp,64(%sp)
-
-	/* Set up args to fixup func.  */
-	ldw	8+4(%r20),%r26	/* got[1] == struct link_map *  */
-	copy	%r19,%r25	/* reloc offset  */
-
-	/* Call the real address resolver. */
-	bl	" #fixup_name ",%r2
-	copy	%r21,%r19	/* delay slot, set fixup func ltp */
-
-	ldwm	-64(%sp),%sp
-	/* Arguments. */
-	ldw	-36(%sp),%r26
-	ldw	-40(%sp),%r25
-	ldw	-44(%sp),%r24
-	ldw	-48(%sp),%r23
-	/* Return pointer. */
-	ldw	-20(%sp),%r2
-	/* Call the real function. */
-	ldw	0(%r28),%r22
-	bv	%r0(%r22)
-	ldw	4(%r28),%r19
-");
+  asm (".globl " #tramp_name "\n"					\
+"	.type " #tramp_name ",@function\n"				\
+ #tramp_name ":\n"							\
+	/* Save return pointer */					\
+"	stw	%r2,-20(%sp)\n"						\
+	/* Save argument registers in the call stack frame. */		\
+"	stw	%r26,-36(%sp)\n"					\
+"	stw	%r25,-40(%sp)\n"					\
+"	stw	%r24,-44(%sp)\n"					\
+"	stw	%r23,-48(%sp)\n"					\
+	/* Build a call frame. */					\
+"	stwm	%sp,64(%sp)\n"						\
+									\
+	/* Set up args to fixup func.  */				\
+"	ldw	8+4(%r20),%r26\n" /* got[1] == struct link_map *  */	\
+"	copy	%r19,%r25\n"	  /* reloc offset  */			\
+									\
+	/* Call the real address resolver. */				\
+"	bl	" #fixup_name ",%r2\n"					\
+"	copy	%r21,%r19\n"	  /* delay slot, set fixup func ltp */	\
+									\
+"	ldwm	-64(%sp),%sp\n"						\
+	/* Arguments. */						\
+"	ldw	-36(%sp),%r26\n"					\
+"	ldw	-40(%sp),%r25\n"					\
+"	ldw	-44(%sp),%r24\n"					\
+"	ldw	-48(%sp),%r23\n"					\
+	/* Return pointer. */						\
+"	ldw	-20(%sp),%r2\n"						\
+	/* Call the real function. */					\
+"	ldw	0(%r28),%r22\n"						\
+"	bv	%r0(%r22)\n"						\
+"	ldw	4(%r28),%r19\n"						\
+       );
 
 #ifndef PROF
 #define ELF_MACHINE_RUNTIME_TRAMPOLINE			\
@@ -476,6 +478,9 @@ asm (									\
 /* We only use RELA. */
 #define ELF_MACHINE_NO_REL 1
 
+/* DT_RELASZ includes .rela.plt  */
+#define ELF_MACHINE_PLTREL_OVERLAP 1
+
 /* Return the address of the entry point. */
 #define ELF_MACHINE_START_ADDRESS(map, start) \
   DL_FUNCTION_ADDRESS (map, start)
@@ -538,7 +543,7 @@ elf_machine_rela (struct link_map *map, 
 	return;
 #endif
       /* .eh_frame can have unaligned relocs.  */
-      if ((unsigned long)reloc_addr & 3)
+      if ((unsigned long) reloc_addr & 3)
 	{
 	  char *rel_addr = (char *) reloc_addr;
 	  rel_addr[0] = value >> 24;
@@ -574,14 +579,14 @@ elf_machine_rela (struct link_map *map, 
 	   probably haven't relocated the necessary values by this
 	   point so we have to find them ourselves. */
 
-	asm ("bl	0f,%0
-	      depi	0,31,2,%0
-0:	      addil	L'__boot_ldso_fptr - ($PIC_pcrel$0 - 8),%0
-	      ldo	R'__boot_ldso_fptr - ($PIC_pcrel$0 - 12)(%%r1),%1
-	      addil	L'__fptr_root - ($PIC_pcrel$0 - 16),%0
-	      ldo	R'__fptr_root - ($PIC_pcrel$0 - 20)(%%r1),%2
-	      addil	L'__fptr_count - ($PIC_pcrel$0 - 24),%0
-	      ldo	R'__fptr_count - ($PIC_pcrel$0 - 28)(%%r1),%3"
+	asm ("bl	0f,%0\n\t"
+	     "depi	0,31,2,%0\n\t"
+	     "0:\taddil	L'__boot_ldso_fptr - ($PIC_pcrel$0 - 8),%0\n\t"
+	     "ldo	R'__boot_ldso_fptr - ($PIC_pcrel$0 - 12)(%%r1),%1\n\t"
+	     "addil	L'__fptr_root - ($PIC_pcrel$0 - 16),%0\n\t"
+	     "ldo	R'__fptr_root - ($PIC_pcrel$0 - 20)(%%r1),%2\n\t"
+	     "addil	L'__fptr_count - ($PIC_pcrel$0 - 24),%0\n\t"
+	     "ldo	R'__fptr_count - ($PIC_pcrel$0 - 28)(%%r1),%3"
 	     :
 	     "=r" (dot),
 	     "=r" (p_boot_ldso_fptr),
@@ -635,11 +640,51 @@ elf_machine_rela (struct link_map *map, 
   *reloc_addr = value;
 }
 
+/* hppa doesn't have an R_PARISC_RELATIVE reloc, but uses relocs with
+   ELF32_R_SYM (info) == 0 for a similar purpose.  */
 static inline void
-elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
+elf_machine_rela_relative (struct link_map *map, Elf32_Addr l_addr,
+			   const Elf32_Rela *reloc,
 			   Elf32_Addr *const reloc_addr)
 {
-  /* XXX Nothing to do.  There is no relative relocation, right?  */
+  unsigned long const r_type = ELF32_R_TYPE (reloc->r_info);
+  Elf32_Addr value;
+
+  value = l_addr + reloc->r_addend;
+
+  if (ELF32_R_SYM (reloc->r_info) != 0)
+    asm volatile ("iitlbp	%r0,(%r0)");  /* Crash. */
+
+  switch (r_type)
+    {
+    case R_PARISC_DIR32:
+      /* .eh_frame can have unaligned relocs.  */
+      if ((unsigned long) reloc_addr & 3)
+	{
+	  char *rel_addr = (char *) reloc_addr;
+	  rel_addr[0] = value >> 24;
+	  rel_addr[1] = value >> 16;
+	  rel_addr[2] = value >> 8;
+	  rel_addr[3] = value;
+	  return;
+	}
+      break;
+
+    case R_PARISC_PLABEL32:
+      break;
+
+    case R_PARISC_IPLT:
+      elf_machine_fixup_plt (NULL, map, reloc, reloc_addr, value);
+      return;
+
+    case R_PARISC_NONE:
+      return;
+
+    default:
+      _dl_reloc_bad_type (map, r_type, 0);
+    }
+
+  *reloc_addr = value;
 }
 
 static inline void
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/i386/dl-machine.h glibc-2.2.4-3/sysdeps/i386/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/i386/dl-machine.h	Mon Oct 22 14:15:49 2001
+++ glibc-2.2.4-3/sysdeps/i386/dl-machine.h	Mon Oct 22 12:22:09 2001
@@ -379,7 +379,8 @@ elf_machine_rel (struct link_map *map, c
 }
 
 static inline void
-elf_machine_rel_relative (Elf32_Addr l_addr, const Elf32_Rel *reloc,
+elf_machine_rel_relative (struct link_map *map, Elf32_Addr l_addr,
+			  const Elf32_Rel *reloc,
 			  Elf32_Addr *const reloc_addr)
 {
   assert (ELF32_R_TYPE (reloc->r_info) == R_386_RELATIVE);
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/ia64/dl-machine.h glibc-2.2.4-3/sysdeps/ia64/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/ia64/dl-machine.h	Mon Oct 22 14:15:49 2001
+++ glibc-2.2.4-3/sysdeps/ia64/dl-machine.h	Mon Oct 22 12:18:30 2001
@@ -580,7 +580,8 @@ elf_machine_rela (struct link_map *map,
 }
 
 static inline void
-elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc,
+elf_machine_rela_relative (struct link_map *map, Elf64_Addr l_addr,
+			   const Elf64_Rela *reloc,
 			   Elf64_Addr *const reloc_addr)
 {
   /* ??? Ignore MSB and Instruction format for now.  */
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/m68k/dl-machine.h glibc-2.2.4-3/sysdeps/m68k/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/m68k/dl-machine.h	Mon Oct 22 14:15:49 2001
+++ glibc-2.2.4-3/sysdeps/m68k/dl-machine.h	Mon Oct 22 12:18:30 2001
@@ -299,7 +299,8 @@ elf_machine_rela (struct link_map *map, 
 }
 
 static inline void
-elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
+elf_machine_rela_relative (struct link_map *map, Elf32_Addr l_addr,
+			   const Elf32_Rela *reloc,
 			   Elf32_Addr *const reloc_addr)
 {
   *reloc_addr = l_addr + reloc->r_addend;
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/mips/dl-machine.h glibc-2.2.4-3/sysdeps/mips/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/mips/dl-machine.h	Mon Oct 22 14:15:49 2001
+++ glibc-2.2.4-3/sysdeps/mips/dl-machine.h	Mon Oct 22 12:18:30 2001
@@ -535,7 +535,8 @@ elf_machine_rel (struct link_map *map, c
 }
 
 static inline void
-elf_machine_rel_relative (ElfW(Addr) l_addr, const ElfW(Rel) *reloc,
+elf_machine_rel_relative (struct link_map *map, ElfW(Addr) l_addr,
+			  const ElfW(Rel) *reloc,
 			  ElfW(Addr) *const reloc_addr)
 {
   /* XXX Nothing to do.  There is no relative relocation, right?  */
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/mips/mips64/dl-machine.h glibc-2.2.4-3/sysdeps/mips/mips64/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/mips/mips64/dl-machine.h	Mon Oct 22 14:15:49 2001
+++ glibc-2.2.4-3/sysdeps/mips/mips64/dl-machine.h	Mon Oct 22 12:18:30 2001
@@ -576,7 +576,8 @@ elf_machine_rel (struct link_map *map, c
 }
 
 static inline void
-elf_machine_rel_relative (ElfW(Addr) l_addr, const ElfW(Rel) *reloc,
+elf_machine_rel_relative (struct link_map *map, ElfW(Addr) l_addr,
+			  const ElfW(Rel) *reloc,
 			  ElfW(Addr) *const reloc_addr)
 {
   /* XXX Nothing to do.  There is no relative relocation, right?  */
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/powerpc/dl-machine.h glibc-2.2.4-3/sysdeps/powerpc/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/powerpc/dl-machine.h	Mon Oct 22 14:15:49 2001
+++ glibc-2.2.4-3/sysdeps/powerpc/dl-machine.h	Mon Oct 22 12:18:30 2001
@@ -394,7 +394,8 @@ elf_machine_rela (struct link_map *map, 
 }
 
 static inline void
-elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
+elf_machine_rela_relative (struct link_map *map, Elf32_Addr l_addr,
+			   const Elf32_Rela *reloc,
 			   Elf32_Addr *const reloc_addr)
 {
   *reloc_addr = l_addr + reloc->r_addend;
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/s390/s390-32/dl-machine.h glibc-2.2.4-3/sysdeps/s390/s390-32/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/s390/s390-32/dl-machine.h	Mon Oct 22 14:15:49 2001
+++ glibc-2.2.4-3/sysdeps/s390/s390-32/dl-machine.h	Mon Oct 22 12:18:30 2001
@@ -440,7 +440,8 @@ elf_machine_rela (struct link_map *map, 
 }
 
 static inline void
-elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
+elf_machine_rela_relative (struct link_map *map, Elf32_Addr l_addr,
+			   const Elf32_Rela *reloc,
 			   Elf32_Addr *const reloc_addr)
 {
   *reloc_addr = l_addr + reloc->r_addend;
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/s390/s390-64/dl-machine.h glibc-2.2.4-3/sysdeps/s390/s390-64/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/s390/s390-64/dl-machine.h	Mon Oct 22 14:15:49 2001
+++ glibc-2.2.4-3/sysdeps/s390/s390-64/dl-machine.h	Mon Oct 22 12:18:30 2001
@@ -420,7 +420,8 @@ elf_machine_rela (struct link_map *map, 
 }
 
 static inline void
-elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc,
+elf_machine_rela_relative (struct link_map *map, Elf64_Addr l_addr,
+			   const Elf64_Rela *reloc,
 			   Elf64_Addr *const reloc_addr)
 {
   *reloc_addr = l_addr + reloc->r_addend;
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/sh/dl-machine.h glibc-2.2.4-3/sysdeps/sh/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/sh/dl-machine.h	Mon Oct 22 14:15:49 2001
+++ glibc-2.2.4-3/sysdeps/sh/dl-machine.h	Mon Oct 22 12:18:30 2001
@@ -558,7 +558,8 @@ elf_machine_rela (struct link_map *map, 
 }
 
 static inline void
-elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
+elf_machine_rela_relative (struct link_map *map, Elf32_Addr l_addr,
+			   const Elf32_Rela *reloc,
 			   Elf32_Addr *const reloc_addr)
 {
   Elf32_Addr value;
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/sparc/sparc32/dl-machine.h glibc-2.2.4-3/sysdeps/sparc/sparc32/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/sparc/sparc32/dl-machine.h	Mon Oct 22 14:15:49 2001
+++ glibc-2.2.4-3/sysdeps/sparc/sparc32/dl-machine.h	Mon Oct 22 12:18:30 2001
@@ -461,7 +461,8 @@ elf_machine_rela (struct link_map *map, 
 }
 
 static inline void
-elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
+elf_machine_rela_relative (struct link_map *map, Elf32_Addr l_addr,
+			   const Elf32_Rela *reloc,
 			   Elf32_Addr *const reloc_addr)
 {
   *reloc_addr += l_addr + reloc->r_addend;
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/sparc/sparc64/dl-machine.h glibc-2.2.4-3/sysdeps/sparc/sparc64/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/sparc/sparc64/dl-machine.h	Mon Oct 22 14:15:49 2001
+++ glibc-2.2.4-3/sysdeps/sparc/sparc64/dl-machine.h	Mon Oct 22 12:18:30 2001
@@ -370,7 +370,8 @@ elf_machine_rela (struct link_map *map, 
 }
 
 static inline void
-elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc,
+elf_machine_rela_relative (struct link_map *map, Elf64_Addr l_addr,
+			   const Elf64_Rela *reloc,
 			   Elf64_Addr *const reloc_addr)
 {
   *reloc_addr = l_addr + reloc->r_addend;
diff -urpN -x*~ -xTAGS -xdebian glibc-2.2.4-3.orig/sysdeps/x86_64/dl-machine.h glibc-2.2.4-3/sysdeps/x86_64/dl-machine.h
--- glibc-2.2.4-3.orig/sysdeps/x86_64/dl-machine.h	Mon Oct 22 14:15:50 2001
+++ glibc-2.2.4-3/sysdeps/x86_64/dl-machine.h	Mon Oct 22 12:22:09 2001
@@ -393,7 +393,8 @@ elf_machine_rela (struct link_map *map, 
 }
 
 static inline void
-elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc,
+elf_machine_rela_relative (struct link_map *map, Elf64_Addr l_addr,
+			   const Elf64_Rela *reloc,
 			   Elf64_Addr *const reloc_addr)
 {
   assert (ELF64_R_TYPE (reloc->r_info) == R_X86_64_RELATIVE);




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A,

Re: Latest glibc changes being applied to what tree?

Are we to assume that the glibc in pehc is now being kept up to date?
Or have these changes made it to the pool on debian? (via hppa's dpatch).

c.




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On Mon, Oct 22, 2001 at 12:04:05PM -0400, Carlos O'Donell Jr. wrote:
> A,
> 
> Re: Latest glibc changes being applied to what tree?

debian glibc-2.2.4-3, with willy's glibc22-hppa.dpatch

> Are we to assume that the glibc in pehc is now being kept up to date?

No.

> Or have these changes made it to the pool on debian? (via hppa's dpatch).

Not yet, but they should soon





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In-Reply-To: Message from Daniel Engstrom <5116@telia.com> 
   of "Sun, 21 Oct 2001 16:19:44 +0200." <20011021161944.G6663@zaphod.halden.lillfab.se> 
Xref: news.gmane.org gmane.linux.ports.parisc:12777

Daniel Engstrom wrote:
> Hi,
> 
> When I got the new driver running I also did some more bonnie runs with the
> following drivers: 
> 2.4.9-pa32 with the old driver and disconnects disbled
> 2.4.9-pa61 with the new driver and tagged-queueing disabled
> HPUX 10.20

Daniel,
thanks for running these tests...always interesting to see.

The difference between -pa32 and -pa61 are numerous.
Lots of bug fixes many new minor features working.
Really need to compare same -paXX with/without disconnects
enabled in order to compare that variable.

> I wonder if the lower speed for block I/O with the new driver is due to the
> disabled disconnects?

I don't think so.
In general, disconnects increase context switching/cpu utilization
but improve SCSI bus utilization for environments with lots of
devices and lots of IO "in flight". ie more throughput at the cost of
more latency. For a single threaded test, I would expect disconnects
*enabled* to have lower throughput than when disabled.

Also, the fact that -pa61 output is more in line with hpux suggest -pa32
could be lying about it's performance. ie the data isn't on media
like bonnie expects. Same might be true for hpux on input. dunno.
Need to troll and bonnie or other disk io perf mailing lists.

BTW, another HPUX (only on workstations) thing is to set WCE (write
cache enable) on the SCSI device. This allows the SCSI device to claim
a write has completed before the data is actually on media.
WCE + disabling disconnects is usally a good combo for perf since the
device can immediately report good status. The problem is a
SCSI bus reset or power failure will blow cached data away.
That's why HPUX servers don't permit WCE on.

hth,
grant




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Subject: Re: [parisc-linux] Large SCSI disks on a 735/125
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Xref: news.gmane.org gmane.linux.ports.parisc:12778

Matt Taggart wrote:
> Last year sometime I saw Paul Bame install an 18GB 10k RPM LVD Seagate
> Cheetah drive in a 712 and install parisc-linux on it. It worked great :)

The LVD SCSI drives can also grok SE SCSI signal.
Not true for HVD drives.
But perhaps adding an SE SCSI interface to a 735 is possible.
(to address the original problem)

grant




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Subject: Re: [parisc-linux] Large SCSI disks on a 735/125
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> Matt Taggart wrote:
> > Last year sometime I saw Paul Bame install an 18GB 10k RPM LVD Seagate
> > Cheetah drive in a 712 and install parisc-linux on it. It worked great
:)
>
> The LVD SCSI drives can also grok SE SCSI signal.
> Not true for HVD drives.
> But perhaps adding an SE SCSI interface to a 735 is possible.
> (to address the original problem)

The 735 normally has a SE SCSI interface.  Integrating LVD drives into
a 735 would be a little more complicated than the SE drive that I suggested.

As far as I can tell, most LVD drives have16-bit interfaces.  Thus, a 8-16
bit adapter is needed.  Also, you need an external terminator since LVD
drives don't have any provision for internal termination.  The above implies
that LVD drives must be installed at the end of the bus.  I don't think it
would
be possible to install a LVD drive in the 735's internal hard drive bay
because
of these constraints.  It would have to be in an external case.

Dave





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From: Jochen Friedrich <jochen+parisc-linux@scram.de>
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Subject: Re: [parisc-linux] Latest debian binutils broken?
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Hi Alan,

On Mon, 22 Oct 2001, Alan Modra wrote:

> ldd as ?

hp720:~# ldd /usr/bin/as
        libopcodes-2.11.92.0.7.so => /usr/lib/libopcodes-2.11.92.0.7.so 
(0x4002b000)
        libbfd-2.11.92.0.7.so => /usr/lib/libbfd-2.11.92.0.7.so 
(0x40049000)
        libc.so.6 => /lib/libc.so.6 (0x400b3000)
        /lib/ld.so.1 => /lib/ld.so.1 (0x40000000)
hp720:~#

All i did was to apt-get upgrade my box to the latest level...

Cheers,
Jochen





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On Sat, 20 Oct 2001, Nicholas Leippe wrote:

> Thankyou for the link.  Unfortunately, I've already read that one
> and found it of little help.
>
> I am not against whatever debian uses considering all the wonderful
> features it's supposed to have, just rather annoyed that it is such a
> difficult/disgusting interface.
>

Some basic commands:

This will update the list of available packages:

=09apt-get update

This will upgrade all of your installed packages to newest versions:

=09apt-get dist-upgrade

Searching for a package 'foo':

=09apt-cache search foo

Download and install package 'foo':

=09apt-get install foo

Listing the files in package 'foo':

=09dpkg -L foo

Displaying status of package 'foo':

=09dpkg -s foo

Display information of not-installed package 'foo':

=09apt-cache show foo

Removing package 'foo':

=09apt-get remove foo
or
=09dpkg --purge foo

Checking to what package file 'foo' belongs to:

=09dpkg -S /path/to/foo


And so on..

the 'sources' for apt are configured in /etc/apt/sources.list
You can add your favourite mirror in there.

And if you need to find which package includes file 'foo' you can check it
from http://packages.debian.org (use the search that let's you search insid=
e
packages).


Hope that helps.


- Pasi K=E4rkk=E4inen


                                   ^
                                .     .
                                 Linux
                              /    -    \
                             Choice.of.the
                           .Next.Generation.





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On Mon, 22 Oct 2001, Matthew Wilcox wrote:
> Should work well.  You should upgrade your kernel before you upgrade
> glibc, but aprt from that I can't think of any other problems.  Beware
> that the current CVS kernel is probably broken for just about everyone
> except rbrad :-)

Hmm... my kernel config/source is a little off kilter being that I've
ripped out HIL to develop the new driver for it.  Is there a
CVS tag or date I could use to check out a working version?

--
Brian





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From: Matthew van de Werken <mvdw73@dingoblue.net.au>
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Subject: [parisc-linux] How to install with no network or CD-ROM
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OK, having finally got the debian installer working on my HP-735/99 with
neither network nor CD-ROM, I thought I'd share my experience with others, so
no-one else has to duplicate the effort.

What you will need to do this is the following:

(1) An external (50-pin) SCSI disk to install onto;
(2) A separate, external SCSI disk to put the CD image onto;
(3) A third SCSI disk to put a temporary file system onto;
(4) A working unix/linux machine with a SCSI interface to drive the three
disks (the 'host' - I used an x86 system running Linux, so that's what I'll
use in all my examples);
(5) The Installation .iso image from parisc-linux.org (we'll call it
image.iso for ease of remembrance)

Note that (1) and (3) could be the same disk, as long as it is
pre-partitioned with enough space to put the entire CD-ROM onto (more on this
later). For the sake of the example, we'll call the disks sda, sdb and sdc on
both machines (host and target).

The first thing to do is to hook up all your scsi drives, and boot the host
machine.

'dd' the iso image directly onto disk 2.
# dd if=/<path>/image.iso of=/dev/sdb bs=512

Now make a filesystem on sdc, or use an already-existing one. Note that you
will need to dump the cd data into the top of the filesystem, ie, if it's
mounted on /mnt/hostfs, that's where you need to copy the cd data. We'll need
to set up the loopback device so we can see inside our iso image to get the
data off it.

For the sake of our example, we'll assume sdc already has a filesystem on it,
and sdc3 is blank of all data.

# mkdir /mnt/hostfs
# mkdir /mnt/iso
# losetup /dev/loop0 /<path>/image.iso
# mount -t iso9660 /dev/loop0 /mnt/iso
# mount /dev/sdc3 /mnt/hostfs
# cp -Rv /mnt/iso/* /mnt/hostfs
<waiting, waiting...>

OK, now that the copying is done, unmount the filesystems and close the
loopback device, and shutdown so you can unplug the devices.

# umount /mnt/iso
# umount /mnt/hostfs
# losetup -d /dev/loop0
# shutdown -h now

Remove the disks, and plug them all into your HP box. Also plug in a serial
console. At the boot prompt, choose to boot from p1 (b p1), which will be the
cd-rom image disk. This will start the debian installer.

The trick now is to firstly not mount the hostfs filesystem, and choose to
install from a hard disk partition. This should get you through the
 installer.

I hope this has helped at least someone else,

Cheers,
Matt van de Werken.

-------------------------------------------------------




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From: Ben Collins <bcollins@debian.org>
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Subject: [parisc-linux] Re: Fix for hppa-linux ld.so with newer binutils
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To: parisc-linux@lists.parisc-linux.org, randolph@tausq.org
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On Mon, Oct 22, 2001 at 11:35:34PM +0930, Alan Modra wrote:
> On Sat, Oct 20, 2001 at 05:09:07PM +0930, Alan Modra wrote:
> > 	* sysdeps/hppa/dl-machine.h (elf_machine_dynamic):  Make it a
> > 	const function.  Do not use &_DYNAMIC as .got entries for global
> > 	syms are no longer initialised.  Instead they rely on the reloc,
> > 	which hasn't yet been applied.
> > 	(elf_machine_load_address): Make it const.  Call
> > 	elf_machine_dynamic as that function is called fropm rtld anyway.
> 
> The following, which includes the above patch, should allow glibc to
> once again work on hppa-linux with current binutils.  A number of other
> horrible things fixed:

Excellent. This fixes the ld.so problem. I can only assume that the 235
test suite failures are due to the one missing patch from the current
Debian binutils package.

Randolph, any estimate on when that fixed package will be available?

-- 
 .----------=======-=-======-=========-----------=====------------=-=-----.
/                   Ben Collins    --    Debian GNU/Linux                  \
`  bcollins@debian.org  --  bcollins@openldap.org  --  bcollins@linux.com  '
 `---=========------=======-------------=-=-----=-===-======-------=--=---'




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From: Randolph Chung <tausq@debian.org>
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Subject: [parisc-linux] Re: Fix for hppa-linux ld.so with newer binutils
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> Excellent. This fixes the ld.so problem. I can only assume that the 235
> test suite failures are due to the one missing patch from the current
> Debian binutils package.
> 
> Randolph, any estimate on when that fixed package will be available?

Alan is debugging this as I write this. Will send the patch to Chris as
soon as we get something that works.

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/




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From: Randolph Chung <tausq@debian.org>
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Subject: [parisc-linux] Yay, binutils fixed for hppa
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With many thanks to Alan Modra binutils seems to be fixed now. Chris,
can you please build a new binutils from cvs? Everything should be there, and
the hppa-specific patch you currently have in the package should no longer 
be needed.

The patch Ben has is needed to build glibc with the new binutils.

hppa is also a bit behind on gcc-3.0. I'll try to build new ones RSN.

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/




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From: "Christopher C. Chimelis" <chris@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Yay, binutils fixed for hppa
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On Mon, 22 Oct 2001, Randolph Chung wrote:

> With many thanks to Alan Modra binutils seems to be fixed now. Chris,
> can you please build a new binutils from cvs? Everything should be there, and
> the hppa-specific patch you currently have in the package should no longer 
> be needed.

Ok, I'll include those in the next upload (based on HJ's release from
today and including the patches that Alan just committed).

> The patch Ben has is needed to build glibc with the new binutils.

Fantastic :-)

> hppa is also a bit behind on gcc-3.0. I'll try to build new ones RSN.

This is good news :-)  Many thanks to Alan for working on this so quickly
:-)

C





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From: Ben Collins <bcollins@debian.org>
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Subject: [parisc-linux] Re: Yay, binutils fixed for hppa
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On Tue, Oct 23, 2001 at 01:20:00AM -0400, Christopher C. Chimelis wrote:
> 
> On Mon, 22 Oct 2001, Randolph Chung wrote:
> 
> > With many thanks to Alan Modra binutils seems to be fixed now. Chris,
> > can you please build a new binutils from cvs? Everything should be there, and
> > the hppa-specific patch you currently have in the package should no longer 
> > be needed.
> 
> Ok, I'll include those in the next upload (based on HJ's release from
> today and including the patches that Alan just committed).
> 
> > The patch Ben has is needed to build glibc with the new binutils.
> 
> Fantastic :-)
> 
> > hppa is also a bit behind on gcc-3.0. I'll try to build new ones RSN.
> 
> This is good news :-)  Many thanks to Alan for working on this so quickly
> :-)

Great work guys!

-- 
 .----------=======-=-======-=========-----------=====------------=-=-----.
/                   Ben Collins    --    Debian GNU/Linux                  \
`  bcollins@debian.org  --  bcollins@openldap.org  --  bcollins@linux.com  '
 `---=========------=======-------------=-=-----=-===-======-------=--=---'




From - Thu Nov 08 21:20:04 2018
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From: "kenneth westelinck" <kennywest1@hotmail.com>
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Subject: [parisc-linux] Netscape for PALinux
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Hi all,


I recently got my hands on a 712/60 workstation. I was surprised to see that
there was a Linux port to this system. As I am very fond of Linux, I got rid
of the old HP-UX (9.05) and installed woody. All seems to work fine, I even
got X-Windows installed and running. As I really want to use the workstation
as a replacement for my Pentium NT box, I was wondering if there's a
Netscape port for PA Linux. I've alread checked the Netscape site, but it
only provides i386 binaries.
Is there any port available? Or is there another good alternative?


regards,

Kenneth





From - Thu Nov 08 21:20:04 2018
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From: Matt.VanDeWerken@csiro.au
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Netscape for PALinux
Date: Tue, 23 Oct 2001 16:57:26 +1000
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Not sure about PA-Linux specifically, but you could try the usual suspects:

Mozilla, Galeon (which requires Mozilla), Konquerer, et al. I use Galeon on
my (x86) Linux box at home with few problems.

Cheers,
Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - 4069 - AUSTRALIA
ph:  +61-7-3327 4685     fax:  +61-7-3327 4455
email:  matt.vandewerken@csiro.au


> -----Original Message-----
> From: kenneth westelinck [mailto:kennywest1@hotmail.com]
> Sent: Tuesday, 23 October 2001 4:56 PM
> To: parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] Netscape for PALinux
> 
> 
> Hi all,
> 
> 
> I recently got my hands on a 712/60 workstation. I was 
> surprised to see that
> there was a Linux port to this system. As I am very fond of 
> Linux, I got rid
> of the old HP-UX (9.05) and installed woody. All seems to 
> work fine, I even
> got X-Windows installed and running. As I really want to use 
> the workstation
> as a replacement for my Pentium NT box, I was wondering if there's a
> Netscape port for PA Linux. I've alread checked the Netscape 
> site, but it
> only provides i386 binaries.
> Is there any port available? Or is there another good alternative?
> 
> 
> regards,
> 
> Kenneth
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux
> 




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Large SCSI disks on a 735/125
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Cc: Steve.Grady@csiro.au, parisc-linux@lists.parisc-linux.org
To: Matthew Wilcox <willy@debian.org>
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On Sat, Oct 20, 2001 at 11:22:31PM +0100, Matthew Wilcox wrote:
> On Sun, Oct 21, 2001 at 08:05:16AM +1000, Steve.Grady@csiro.au wrote:
> > I want to put a large SCSI disk either 9.1G or 18.2G SCSI disk on a HP
> > 735/125 does anyone know if this will work under PARISC-linux and will I be
> > able to see the whole disk?

As I think jsm added, the internal fast-wide-diff disks on a 53c720 are
not supported atm.  53c720 is supported on some systems (zalon on bluefish
card, in my B180, for example), and I had some provisional patches for
53c720 support on Outfield (735).  Turns out that they wont work though,
because 735 is not cache coherent.  The 53c720 driver is ncr53c8xx.c,
which assumes cache coherent memory is available - it bombs on 735
because pci_alloc_consistent() fails.

Not sure what to do about this yet - we might get support most easily
by adding 53c720 to the new 53c700 driver, but it would be running
the 53c720 in 53c700 mode, which is rather sub-optimal.

Given that ncr53c8xx.c is really a pci driver, I think there is a limit
to how much we can get away with changing it for non-pci, non 53c8xx
chips.

Richard





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Hello all,

Well, I decided to ditch HPUX 10.20 for Linux. I have installed the kernel
from the ISO image onto a 712/60.

I have installed X on it. Every is fine until the screen goes black. Once
this happens, the colors are messed up and it is unusable. I believe that is
the same problem as the blue is white that was talked on the mailing list.
This problem was corrected with a new kernel.

The kernel that I am running is 2.4.0-pa22. How do I upgrade the kernel?

Thanks in advance,
Aubrey




From - Thu Nov 08 21:20:04 2018
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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] X window refresh problem
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Xref: news.gmane.org gmane.linux.ports.parisc:12793

On Tue, Oct 23, 2001 at 10:13:00AM -0400, Griffin, Aubrey, BMCIO wrote:
> Hello all,
> 
> Well, I decided to ditch HPUX 10.20 for Linux. I have installed the kernel
> from the ISO image onto a 712/60.
> 
> I have installed X on it. Every is fine until the screen goes black. Once
> this happens, the colors are messed up and it is unusable. I believe that is
> the same problem as the blue is white that was talked on the mailing list.
> This problem was corrected with a new kernel.
> 
> The kernel that I am running is 2.4.0-pa22. How do I upgrade the kernel?

grab ftp://ftp.parisc-linux.org/unofficial-debs/kernel-image-2.4.9-32_011017.pa59_hppa.deb

and dpkg -i kernel-image-2.4.9-32_011017.pa59_hppa.deb

I think you are advised to upgrade the rest of your system first, if
you havn't done so recently (apt-get update; apt-get upgrade).

Richard





From - Thu Nov 08 21:20:04 2018
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From: "Griffin, Aubrey, BMCIO" <aubreygriffin@att.com>
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Subject: RE: [parisc-linux] X window refresh problem
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Richard,

I installed that kernel already and booted from it. When I started X, it
crashed. So, I went back to my old kernel.

I have just done an apt-get update; apt-get upgrade. I'll see if it works
now.

Thanks,

Aubrey

-----Original Message-----
From: Richard Hirst [mailto:rhirst@linuxcare.com]
Sent: Tuesday, October 23, 2001 12:30 PM
To: Griffin, Aubrey, BMCIO
Cc: 'parisc-linux@lists.parisc-linux.org'
Subject: Re: [parisc-linux] X window refresh problem


On Tue, Oct 23, 2001 at 10:13:00AM -0400, Griffin, Aubrey, BMCIO wrote:
> Hello all,
> 
> Well, I decided to ditch HPUX 10.20 for Linux. I have installed the kernel
> from the ISO image onto a 712/60.
> 
> I have installed X on it. Every is fine until the screen goes black. Once
> this happens, the colors are messed up and it is unusable. I believe that
is
> the same problem as the blue is white that was talked on the mailing list.
> This problem was corrected with a new kernel.
> 
> The kernel that I am running is 2.4.0-pa22. How do I upgrade the kernel?

grab
ftp://ftp.parisc-linux.org/unofficial-debs/kernel-image-2.4.9-32_011017.pa59
_hppa.deb

and dpkg -i kernel-image-2.4.9-32_011017.pa59_hppa.deb

I think you are advised to upgrade the rest of your system first, if
you havn't done so recently (apt-get update; apt-get upgrade).

Richard




From - Thu Nov 08 21:20:04 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] X window refresh problem
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To: Richard Hirst <rhirst@linuxcare.com>
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On Tue, Oct 23, 2001 at 05:30:25PM +0100, Richard Hirst wrote:
> I think you are advised to upgrade the rest of your system first, if
> you havn't done so recently (apt-get update; apt-get upgrade).

No, install the new kernel first.  Newer glibcs fix a bug which exposes a
kernel bug, which prevents you ssh'ing in... so upgade the kernel first
nd you'll be fine.

-- 
Revolutions do not require corporate support.




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Subject: [parisc-linux] Re: 53c700: tagged queueing problem confirmed
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On 2001.10.22 02:34 James Bottomley wrote:
> 5116@telia.com said:
> > I have investigated this some more and I have come to the conclustion
> > that you are quite right. I disabled tagged queueing in the drivber
> > and it instantly bacame stable.
> 
> > Do you have any idea on how to proceed debugging this? 
> 
> Well here's my theory:
> 
> There are a number of reports with tag command queueing problems
> associated with these drives.  In particular, one for freebsd said 
> that the aic7xxx driver was reporting data overruns with TCQ enabled 
> on Quantum Fireballs.
Ok.

I have used these drives with i386 Linux without problems with both the
aix7xxx driver and the sym53c8xx driver. Both these drivers use a default of max
8 tags per lun, so I chnaged the value in your driver and it works.
So, maybe 8 tags per lun is the conservative default here ?

/Daneil 
-- 




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From: "Christopher C. Chimelis" <chris@debian.org>
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Subject: [parisc-linux] Re: Yay, binutils fixed for hppa
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Ok, new source package on klecker in ~chris/public_html/binutils for your
testing :-)  If it works, I'll do the upload tonight :-)

C

On Mon, 22 Oct 2001, Randolph Chung wrote:

> With many thanks to Alan Modra binutils seems to be fixed now. Chris,
> can you please build a new binutils from cvs? Everything should be there, and
> the hppa-specific patch you currently have in the package should no longer 
> be needed.
> 
> The patch Ben has is needed to build glibc with the new binutils.
> 
> hppa is also a bit behind on gcc-3.0. I'll try to build new ones RSN.
> 
> randolph
> -- 
> Debian Developer <tausq@debian.org>
> http://www.TauSq.org/
> 
> 





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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: 53c700: tagged queueing problem confirmed
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5116@telia.com said:
> I have used these drives with i386 Linux without problems with both
> the aix7xxx driver and the sym53c8xx driver. Both these drivers use a
> default of max 8 tags per lun, so I chnaged the value in your driver
> and it works. So, maybe 8 tags per lun is the conservative default
> here ? 

That's not unreasonable.  You're going to run into problems with the new 
aic7xxx driver, though, which has a default of 253 tags.

Usually you want larger numbers of tags to allow multiple active I/Os and give 
the device the most freedom to order them efficiently.  However, in linux we 
have the elevator to consider as well:  The more tags, the less time the I/Os 
spend in the elevator queue and the less chance of coalescing adjacent I/O.  
For any given workload, there's probably an optimal tag number and I bet they 
cluster around some value for a variety of workloads, but I've no idea what it 
is.

I'd still be wary of allowing tags on this drive.  The firmware clearly has a 
point beyond which it goes haywire and you don't really know where that is.  
It could be that reducing the max tags to 8 makes this unlikely but not 
impossible, so you may still end up with insidious data corruption 
possibilities.

James






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From: Randolph Chung <tausq@debian.org>
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Subject: [parisc-linux] Re: Yay, binutils fixed for hppa
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In reference to a message from Christopher C. Chimelis, dated Oct 23:
> 
> Ok, new source package on klecker in ~chris/public_html/binutils for your
> testing :-)  If it works, I'll do the upload tonight :-)

seems to be ok. please upload.

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/




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Subject: Re: [parisc-linux] Re: 53c700: tagged queueing problem confirmed
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   of "Tue, 23 Oct 2001 18:59:25 CDT." <200110232359.f9NNxPG09126@localhost.localdomain> 
Xref: news.gmane.org gmane.linux.ports.parisc:12800

James Bottomley wrote:
> That's not unreasonable.  You're going to run into problems with the new 
> aic7xxx driver, though, which has a default of 253 tags.
> 
> Usually you want larger numbers of tags to allow multiple active I/Os
> and give the device the most freedom to order them efficiently.

Hmm...not really. Maybe for DOS or other really stupid OS's.

> However, in linux we have the elevator to consider as well:  The
> more tags, the less time the I/Os spend in the elevator queue and
> the less chance of coalescing adjacent I/O.  

That's right...coalescing and seek times need to be considered.
WCE bit (that I described before) also affects how long
IO are on the disk sort queue. With WCE enabled, setting the
max number of tags to 2 (or so) works very nicely.

I'm told Linux's disk sort elevator isn't very good about starvation.
ie IO's can get "prempted" for a long time because the IO
is destined for a currently "out of favor" geography on the disk.

One more consideration unique to multi-initiator SCSI clusters:
(Ie several hosts share devices on one SCSI bus)
The total number of outstanding IO can't exceed what the disk
is capable of handling or we end up wasting bandwidth to
requeue rejected IO's (BUSY msg or something like that).

> For any given workload, there's probably an optimal tag number and I bet
> they cluster around some value for a variety of workloads, but I've no
> idea what it is.

8 tags seems to be a pretty good trade off between on-disk optimizations
and OS trade-offs for database apps. At least that was true a few years
ago.

> I'd still be wary of allowing tags on this drive.  The firmware clearly has a
> point beyond which it goes haywire and you don't really know where that is.  
> It could be that reducing the max tags to 8 makes this unlikely but not 
> impossible, so you may still end up with insidious data corruption 
> possibilities.

Check with the vendor to see if the firmware is upgradeable.
Odds are if someone like HP or Sun is OEM'ing the disk, bugs
in the firmware have been found and fixed in later versions.

grant




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Grant,

On 2001.10.22 19:52 Grant Grundler wrote:
> The difference between -pa32 and -pa61 are numerous.
> Lots of bug fixes many new minor features working.
> Really need to compare same -paXX with/without disconnects
> enabled in order to compare that variable.

I disabled disconnect with pa61 and got similar results as with disconnects
disabled with pa32, so most of the difference may be the disconnects.

> > I wonder if the lower speed for block I/O with the new driver is due to the
> > disabled disconnects?

I phrased this in a bad way, the old driver which is faster have disconnects
disabled.

> For a single threaded test, I would expect disconnects
> *enabled* to have lower throughput than when disabled.
Which is what I saw even if it was not very clearly expressed.
I got ~400k/s better block throughput with the old driver with disconnects
disabled (due to some driver problem) than with the new driver.
 
> Also, the fact that -pa61 output is more in line with hpux suggest -pa32
> could be lying about it's performance. ie the data isn't on media
> like bonnie expects. Same might be true for hpux on input. dunno.
> Need to troll and bonnie or other disk io perf mailing lists.
> 
> BTW, another HPUX (only on workstations) thing is to set WCE (write
> cache enable) on the SCSI device. 
Can this behaviur be controlled? I use 10.20.

Another thing which I want to bring up is locking. It seems out getc() performance is stuck at 314chars/sec while HPUX gives almost 600, could it be
that HPUX lock primitive is twice as fast as ours?

/Daniel

-- 




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Xref: news.gmane.org gmane.linux.ports.parisc:12802

Daniel Engstrom wrote:
> Which is what I saw even if it was not very clearly expressed.
> I got ~400k/s better block throughput with the old driver with disconnects
> disabled (due to some driver problem) than with the new driver.

ah ok. It wasn't obvious to me.

> > BTW, another HPUX (only on workstations) thing is to set WCE (write
> > cache enable) on the SCSI device. 
> Can this behaviur be controlled? I use 10.20.

yes. iirc, it via scsictl command.

# scsictl
Usage: scsictl [-akq] [-m mode[=value]]... [-c command]... device

But HPUX calls WCE something else: "Immediate Reporting".
Keep that in mind when reading the man page.

> Another thing which I want to bring up is locking. It seems out getc() perfor
>   mance is stuck at 314chars/sec while HPUX gives almost 600, could it be
> that HPUX lock primitive is twice as fast as ours?

I think the lock primitive is the same - it's "ldcw".
It's something in the libc/syscall path but I have no clue what.

grant




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Subject: Re: [parisc-linux] X window refresh problem
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Xref: news.gmane.org gmane.linux.ports.parisc:12803

Or you can grab your kernel from parisc-linux.org and compile him yourself. 
This solved the refresh problem for me ;-)

enjoy life, enjoy linux,

Kenneth



>From: Richard Hirst <rhirst@linuxcare.com>
>To: "Griffin, Aubrey, BMCIO" <aubreygriffin@att.com>
>CC: "'parisc-linux@lists.parisc-linux.org'" 
><parisc-linux@lists.parisc-linux.org>
>Subject: Re: [parisc-linux] X window refresh problem
>Date: Tue, 23 Oct 2001 17:30:25 +0100
>
>On Tue, Oct 23, 2001 at 10:13:00AM -0400, Griffin, Aubrey, BMCIO wrote:
> > Hello all,
> >
> > Well, I decided to ditch HPUX 10.20 for Linux. I have installed the 
>kernel
> > from the ISO image onto a 712/60.
> >
> > I have installed X on it. Every is fine until the screen goes black. 
>Once
> > this happens, the colors are messed up and it is unusable. I believe 
>that is
> > the same problem as the blue is white that was talked on the mailing 
>list.
> > This problem was corrected with a new kernel.
> >
> > The kernel that I am running is 2.4.0-pa22. How do I upgrade the kernel?
>
>grab 
>ftp://ftp.parisc-linux.org/unofficial-debs/kernel-image-2.4.9-32_011017.pa59_hppa.deb
>
>and dpkg -i kernel-image-2.4.9-32_011017.pa59_hppa.deb
>
>I think you are advised to upgrade the rest of your system first, if
>you havn't done so recently (apt-get update; apt-get upgrade).
>
>Richard
>
>
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux


_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp





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From: rbradetich@uswest.net (Ryan Bradetich)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] I/O Tree patch ... CVS Head will be unstable for the next few days.
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Hello parisc-linux hackers,

CVS head is starting to look pretty stable again.
This message is the "all clear" for others to work/play
with.  

Thanks,

- Ryan




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Subject: [parisc-linux] new cd-images any time soon?
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Will there be any new CD images any time soon? i.e. with current kernel,
packages, etc? 

Or is there a straigtforward way to easily build a CD image equivalent to
that which is on the ftp server?

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216




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Subject: Re: [parisc-linux] new cd-images any time soon?
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On Wed, Oct 24, 2001 at 10:26:14AM -0500, Neulinger, Nathan wrote:
> Will there be any new CD images any time soon? i.e. with current kernel,
> packages, etc? 

Yes, we're planning an 0.9.3 release within the next couple of weeks.

-- 
Revolutions do not require corporate support.




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My X windows problems have been cleared up.

I not sure what exactly made things work. apt-get update and apt-upgrade
might have done it since new versions of X among other things were
installed.

Changing back to 2.4.9-32-pa59 before doing this, of course.

PS: A side note on my failure to get a updated kernel. I didn't post this
earlier because I hate to write long-winded messages.

I did pull down the kernel source, linux-20011015.tar.gz and compile it over
the weekend. The resultant kernel, vmlinux, failed to boot on by box,
something about VFS: can't  mount root filesystem.

I must have missed some steps in the compilation process. These things are
not exactly clear to me. It might be middle-age or something. But, that is
another message thread which I may or may not start shortly.

Anyway, I learned how to use palo at the boot prompt to boot an old kernel.
So, it wasn't a total waste.

Previously, I had install the kernel debian package. That also failed to
work for me. But, I didn't know all the steps. I think that I understand
know. 

I browsed through the Debian package list and have not seen a kernel-image
package for HPPA. At least, there was no package name that I recognized as a
kernel image that was newer than mine.

So, I finally put my technical pride into my pocket and emailed the list for
help and the answers came in.

Thanks to everyone that helped,
Aubrey

-----Original Message-----
From: Kenneth Westelinck [mailto:kennywest1@hotmail.com]
Sent: Wednesday, October 24, 2001 2:23 AM
To: rhirst@linuxcare.com; Griffin, Aubrey, BMCIO
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] X window refresh problem


Or you can grab your kernel from parisc-linux.org and compile him yourself. 
This solved the refresh problem for me ;-)

enjoy life, enjoy linux,

Kenneth



>From: Richard Hirst <rhirst@linuxcare.com>
>To: "Griffin, Aubrey, BMCIO" <aubreygriffin@att.com>
>CC: "'parisc-linux@lists.parisc-linux.org'" 
><parisc-linux@lists.parisc-linux.org>
>Subject: Re: [parisc-linux] X window refresh problem
>Date: Tue, 23 Oct 2001 17:30:25 +0100
>
>On Tue, Oct 23, 2001 at 10:13:00AM -0400, Griffin, Aubrey, BMCIO wrote:
> > Hello all,
> >
> > Well, I decided to ditch HPUX 10.20 for Linux. I have installed the 
>kernel
> > from the ISO image onto a 712/60.
> >
> > I have installed X on it. Every is fine until the screen goes black. 
>Once
> > this happens, the colors are messed up and it is unusable. I believe 
>that is
> > the same problem as the blue is white that was talked on the mailing 
>list.
> > This problem was corrected with a new kernel.
> >
> > The kernel that I am running is 2.4.0-pa22. How do I upgrade the kernel?
>
>grab 
>ftp://ftp.parisc-linux.org/unofficial-debs/kernel-image-2.4.9-32_011017.pa5
9_hppa.deb
>
>and dpkg -i kernel-image-2.4.9-32_011017.pa59_hppa.deb
>
>I think you are advised to upgrade the rest of your system first, if
>you havn't done so recently (apt-get update; apt-get upgrade).
>
>Richard
>
>
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux


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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: Re: [parisc-linux] new cd-images any time soon?
Date: Wed, 24 Oct 2001 20:14:24 +0200
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Hello,

On Wed, 24 Oct 2001, Matthew Wilcox wrote:

> On Wed, Oct 24, 2001 at 10:26:14AM -0500, Neulinger, Nathan wrote:
> > Will there be any new CD images any time soon? i.e. with current kernel,
> > packages, etc?=20
>=20
> Yes, we're planning an 0.9.3 release within the next couple of weeks.

Any chance of the 720/50 being fixed by then? :-) Has anything changed
significantly that would warrant me to attempt an installation again?
Have the 3.0.15 boot-floppies for hppa been created yet? Anything fixed
in the kernel?

I'm avaiable to fiddle with it this weekend if that helps.

Regards,

Albert

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From - Thu Nov 08 21:20:05 2018
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From: bame@fc.hp.com
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] IMPORTANT CVS CHANGES
Date: Wed, 24 Oct 2001 16:45:39 -0600
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To: parisc-linux@parisc-linux.org
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Wed Oct 24 16:45:42 2001
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Xref: news.gmane.org gmane.linux.ports.parisc:12809

It's time to move CVS from puffin.external.hp.com to cvs.parisc-linux.org

WHEN: Friday, 26-October, noon local time (US-MDT aka GMT-6)

At noon puffin.external's CVS will go down and shortly thereafter
CVS will come up on cvs.parisc-linux.org along with an e-mail
announcement.  Send questions to the list, or if that's too embarassing
to me or taggart@fc.hp.com

		WHAT YOU MUST DO

1) You will not need to commit outstanding changes or do anything else
   unusual prior to the switchover.

2) You're probably setting CVSROOT somewhere, perhaps in your
   .profile.  Change puffin.external.hp.com to cvs.parisc-linux.org and
   /home/cvs/parisc to /var/cvs

3) Every file named CVS/Root will need the same changes as #2.
   Use the script 'move-cvs' to do this for you -- simply run it
   in your top-level CVS directories, or the one above that perhaps.
   'move-cvs' is attached to the end of this message and is available
   from CVS on puffin.external as build-tools/move-cvs.

4) Wherever you used puffin.external in a CVS-related way, start using
   cvs.parisc-linux.org instead, for example you might have web bookmarks
   for browsing the CVS archive.

5) Don't count on LXR being available any time soon...

   	-Paul Bame


---------- move-cvs script starts next line
#!/bin/sh

find . -type d -name CVS -print |
    while read dir
    do
	[ -s $dir/Root ] || continue
	root=$(<$dir/Root)
	case $root in
	    :pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc)
	    	newroot=:pserver:anonymous@cvs.parisc-linux.org:/var/cvs;;
	    :ext:*@puffin.external.hp.com:/home/cvs/parisc)
		user=${root#:ext:}
		user=${user%@puffin.external.hp.com:/home/cvs/parisc}
		newroot=:ext:$user@cvs.parisc-linux.org:/var/cvs;;
	    puffin.external.hp.com:/home/cvs/parisc)
	        newroot=cvs.parisc-linux.org:/var/cvs;;
	    /home/parisc/cvs)
	    	newroot=cvs.parisc-linux.org:/var/cvs;;
	    :pserver:anonymous@pehc:/home/cvs/parisc)
	    	newroot=:pserver:anonymous@cvs.parisc-linux.org:/var/cvs;;
	    :ext:*@pehc:/home/cvs/parisc)
	        newroot=cvs.parisc-linux.org:/var/cvs
		user=${root#:ext:}
		user=${user%@pehc:/home/cvs/parisc}
		newroot=:ext:$user@cvs.parisc-linux.org:/var/cvs;;
	    pehc:/home/cvs/parisc)
	        newroot=cvs.parisc-linux.org:/var/cvs;;
	    /home/parisc/cvs)
	    	newroot=cvs.parisc-linux.org:/var/cvs;;
	    *) echo -e "\nCannot fix $dir/Root ($root)" >&2
	    	continue;;
	esac

	cp $dir/Root $dir/Root.pehc
	echo $newroot > $dir/Root
	echo -e ".\c"
    done
echo




From - Thu Nov 08 21:20:05 2018
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From: Ben Collins <bcollins@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Fix for hppa-linux ld.so with newer binutils
Date: Wed, 24 Oct 2001 19:51:02 -0400
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To: parisc-linux@lists.parisc-linux.org, randolph@tausq.org
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Ok. Seems there are some other issues still. I'm using the .10-1
binutils, and the latest patches for glibc. At first I thought the
testsuite was running through perfectly, until I realized that it was
because most of the tests weren't being run. The configure script thinks
it is cross-compiling, because it can't even run a simple test program.

Not to mention I am getting random segv's in the rest of the toolchain.
I went back to a UP kernel suspecting it to be the cause. Now I'm
getting a segv during the package builds due to a segv in the strip
program (that may be a binutils bug).

So, back to square one. I don't have time tonight to start looking at
this, so I'll start on it tomorrow.

BTW, most of the iconv/locales tests fail in glibc on parisc.

Ben

-- 
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From - Thu Nov 08 21:20:05 2018
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From: Randolph Chung <tausq@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Fix for hppa-linux ld.so with newer binutils
Date: Wed, 24 Oct 2001 17:56:43 -0700
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Ben,

> Not to mention I am getting random segv's in the rest of the toolchain.
> I went back to a UP kernel suspecting it to be the cause. Now I'm
> getting a segv during the package builds due to a segv in the strip
> program (that may be a binutils bug).
> 
> So, back to square one. I don't have time tonight to start looking at
> this, so I'll start on it tomorrow.
> 
> BTW, most of the iconv/locales tests fail in glibc on parisc.

do you have a build log? if so can you put it on, say, auric?

also please show dpkg -s output for binutils and gcc-3.0

we seem to be getting some random segvs on A500's. James sees them a lot
on the hppa buildd (sarti). I have a feeling the toolchain might not be
at fault in this case.

if you'd like please post the source and I can try to build it here. i'm
building 2.2.4-3 with the newest tool bits at the moment. basic things
seem to be ok, but it'll take an hour or more for it to finish.

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/




From - Thu Nov 08 21:20:06 2018
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From: Ben Collins <bcollins@debian.org>
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Subject: Re: [parisc-linux] Re: Fix for hppa-linux ld.so with newer binutils
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On Wed, Oct 24, 2001 at 05:56:43PM -0700, Randolph Chung wrote:
> Ben,
> 
> > Not to mention I am getting random segv's in the rest of the toolchain.
> > I went back to a UP kernel suspecting it to be the cause. Now I'm
> > getting a segv during the package builds due to a segv in the strip
> > program (that may be a binutils bug).
> > 
> > So, back to square one. I don't have time tonight to start looking at
> > this, so I'll start on it tomorrow.
> > 
> > BTW, most of the iconv/locales tests fail in glibc on parisc.
> 
> do you have a build log? if so can you put it on, say, auric?

The build finished without error, so it's of little use. The test suite
output is just a lot og Error 139's, so it too isn't much help.

> also please show dpkg -s output for binutils and gcc-3.0

binutils 2.11.92.0.10-1
gcc-3.0 3.0.2-0pre010922

I'm going to upgrade and try again.

> we seem to be getting some random segvs on A500's. James sees them a lot
> on the hppa buildd (sarti). I have a feeling the toolchain might not be
> at fault in this case.

Agreed. In fact, the machine locked up twice while doing a "debian/rules
clean", which is obviously not a toolchain problem :)

> if you'd like please post the source and I can try to build it here. i'm
> building 2.2.4-3 with the newest tool bits at the moment. basic things
> seem to be ok, but it'll take an hour or more for it to finish.

Will be uploading it later tonight. I have 5 other archs done, so I am
going to upload all of that.

-- 
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Subject: [parisc-linux] RfC: hpux-like sysconf variables in glibc, cpu affinity
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While helping to port the hpux PI performance monitoring stuff to Linux, I
came across several sysconf calls that appear to be supported by hpux
but not under Linux. Would like to get your opinions on how best to
support these:

variable:		sample output
===================================================================
_SC_CPU_VERSION		CPU_PA_RISC2_0
_SC_CPU_CHIP_TYPE	bitfield describing cpu type and rev
_SC_PSET_SUPPORT	1/0, see more below

there's also a call to confstr(_CS_MACHINE_MODEL) which is also not
supported by glibc.

>From what I can tell glibc implements the sysconf interface according to
what's in POSIX. I suppose some/all of these may not be posix.
So, what should we do to provide similar functionality? 

Option 1: implement these in glibc/syscalls... dunno what the glibc team
thinks

Option 2: provide a PI device-specific ioctl to get the info it needs
from the kernel

#1 seems like a better solution to me, what do you guys think?


The other part that is missing is the ability to bind a process to a
particular CPU in a SMP system (i.e. makes sure a process starts on CPU
n and stays on it). I did some digging into this and found that this is
basically not supported by Linux's SMP system. There were some pset
patches for 2.2.x and 2.3.x, but nothing that I could find for 2.4.x

Wonder if this is something that we can do, or if it's more of a
(potential) 2.5.x thing....

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^




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Hi all,


I've recently installed the test-release of woody on my 712/60. I've also 
compiled a recent kernel available from the parisc-linux site. All works 
well, except from a very strange problem. The start-stop-daemon call, which 
is used throughout the init scripts, doesn't seem to work. So, executing the 
inetd script results in nothing, not even an error. Starting inetd on the 
command line (/usr/sbin/inetd) works great. Is there a known bug in the 
start-stop-daemon program? Can this be solved, or will I have to rewrite my 
init scripts?

Many thanks in advance.


regards,

Kenneth

_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp





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On Wednesday 24 October 2001 01:14 pm, Albert Strasheim wrote:
> - - snip - -
> Any chance of the 720/50 being fixed by then? :-) 

Albert & group,

I have not given up on the "loop on LDCW" problem you have found, but...

It is not likely that I will have the changes ready in time for the next iso.

I do have the LDCW target word being put into .o files with proper alignment, 
with or without initialization.
I DO NOT have the change cleanly intigrated into the source.

Mike




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Hello,

I had this same problem on i386 -- I think it's a dependancy bug that
gets exposed during installation (ppp depending on libpcap, I think),
which causes some setup scripts to fail during installation.

Look for a start-stop-daemon.REAL file and copy it over your
start-stop-daemon. I think that should solve the problem. Or I'm utterly
confused... which is probably more likely. :-)

Regards,

Albert

On Thu, 25 Oct 2001, Kenneth Westelinck wrote:

> Hi all,
>=20
>=20
> I've recently installed the test-release of woody on my 712/60. I've also=
=20
> compiled a recent kernel available from the parisc-linux site. All works=
=20
> well, except from a very strange problem. The start-stop-daemon call, whi=
ch=20
> is used throughout the init scripts, doesn't seem to work. So, executing =
the=20
>=20
> inetd script results in nothing, not even an error. Starting inetd on the=
=20
> command line (/usr/sbin/inetd) works great. Is there a known bug in the=
=20
> start-stop-daemon program? Can this be solved, or will I have to rewrite =
my=20
> init scripts?
>=20
> Many thanks in advance.
>=20
>=20
> regards,
>=20
> Kenneth

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>
> Albert & group,
>
> I have not given up on the "loop on LDCW" problem you have found, but...
>
> It is not likely that I will have the changes ready in time for the next iso.
>
> I do have the LDCW target word being put into .o files with proper alignment,
> with or without initialization.
> I DO NOT have the change cleanly intigrated into the source.
>
> Mike

Mike,

We already use an align attribute for the lock word, so the lock word is
automatically aligned properly for global and static storage.  So the
proper alignment for global and static values should already be the case
for .o files.  The problem is that the compiler ignores the align
attribute for automatic storage (i.e. values on the stack). The only
time I saw problems after the kernel was fixed is when a ldcw was done
on a non properly aligned lockword on the stack.

Alan Modra has produced a gcc patch that should fix the problem for
automatic storage.  I'm not sure what the status of getting that patch
into the distribution is.  I sent the patch to Randolph Chung with the
hope that he could at least test the patch to make sure that it didn't
break glibc.  Once gcc is patched, a new glibc needs to be built with it,
and we have only recently made significant progress towards that goal
due to a variety of recent bug fixes.

So anyway, it is possible that the fix will be in the 0.9.3 iso, but it
is not guaranteed. The good news is that we do have a known fix, and
it is the most desirable solution of the various ones I proposed.

John Marvin
jsm@fc.hp.com




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On Thursday 25 October 2001 08:25 am, John Marvin wrote:
> Once gcc is patched, a new glibc needs to be built with it,
> and we have only recently made significant progress towards that goal
> due to a variety of recent bug fixes.

Great! - I'll wait to see how that impacts what I have been working on.
>
> So anyway, it is possible that the fix will be in the 0.9.3 iso, but it
> is not guaranteed. The good news is that we do have a known fix, and
> it is the most desirable solution of the various ones I proposed.
>
I was only speaking about what I have been working on being ready in time.  
Of course, having a general fix would be better than any minor tweak I could 
have come up with. 

I'll just hold off any work for now.

Mike




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On Wed, Oct 24, 2001 at 07:51:02PM -0400, Ben Collins wrote:
> BTW, most of the iconv/locales tests fail in glibc on parisc.

That's a regression.  According to my whiteboard, the tests that were
failing with 2.2.3-9 were:

 dlfcn/default
 posix/globtest
 gmon/tst-sprofil
 elf/resolvfail
     constload1
     vismain
     neededtest{,2,3,4}
     lateglobal

-- 
Revolutions do not require corporate support.




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> Alan Modra has produced a gcc patch that should fix the problem for
> automatic storage.  I'm not sure what the status of getting that patch
> into the distribution is.  I sent the patch to Randolph Chung with the
> hope that he could at least test the patch to make sure that it didn't
> break glibc.

We are still having a lot of problems with toolchain/glibc, so I haven't
been able to build glibc with a patched gcc yet. On the good side I had
compiled other stuff using the patched gcc with no ill side-effects,
so.... 

I'm going to be away for a few days; I will forward the patch to
Debian's gcc maintainer for inclusion in the new gcc release. It looks
like we might have more work to do before we get a new glibc though.

randolph
-- 
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 ^^ ~~ ^^




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To: Matthew Wilcox <willy@debian.org>
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On Thu, Oct 25, 2001 at 04:07:21PM +0100, Matthew Wilcox wrote:
> On Wed, Oct 24, 2001 at 07:51:02PM -0400, Ben Collins wrote:
> > BTW, most of the iconv/locales tests fail in glibc on parisc.
> 
> That's a regression.  According to my whiteboard, the tests that were
> failing with 2.2.3-9 were:
> 
>  dlfcn/default
>  posix/globtest
>  gmon/tst-sprofil
>  elf/resolvfail
>      constload1
>      vismain
>      neededtest{,2,3,4}
>      lateglobal

Even with the newest gcc 3.0.2 in sid, I get those failures. Make sure
when you guys are compiling that in hppa-linux/obj/config.make, that
cross_compile isn't set to yes. For some reason, I am getting this, and
when that's set, most of the testsuite isn't run.

I do have a compiled set of packages, installed, that are working.
They'll be uploaded with 2.2.4-4.

Ben

-- 
 .----------=======-=-======-=========-----------=====------------=-=-----.
/                   Ben Collins    --    Debian GNU/Linux                  \
`  bcollins@debian.org  --  bcollins@openldap.org  --  bcollins@linux.com  '
 `---=========------=======-------------=-=-----=-===-======-------=--=---'




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From: Jochen Friedrich <jochen+parisc-linux@scram.de>
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Subject: [parisc-linux] IPv6 on PA-RISC up and running :-)
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Hi,

With a short patch (disabling a not-working checksum method and using a 
portable C version instead), i got IPv6 
up and running on my 720:

[root@alpha root]# ping6 3ffe:400:470:4:a00:9ff:fe17:ca3d
PING 3ffe:400:470:4:a00:9ff:fe17:ca3d(3ffe:400:470:4:a00:9ff:fe17:ca3d) from 3ffe:400:470:4::1 : 56 data bytes
64 bytes from 3ffe:400:470:4:a00:9ff:fe17:ca3d: icmp_seq=0 hops=64 time=2.391 msec
64 bytes from 3ffe:400:470:4:a00:9ff:fe17:ca3d: icmp_seq=1 hops=64 time=780 usec

Cheers,
Jochen

--- /usr/src/linux/include/asm-parisc/checksum.h.old    Thu Oct 25 
21:00:58 2001+++ /usr/src/linux/include/asm-parisc/checksum.h        Thu 
Oct 25 21:00:46 2001@@ -143,6 +143,7 @@
         return csum_fold (csum_partial(buf, len, 0));
 }

+#if 0
 #define _HAVE_ARCH_IPV6_CSUM
 static __inline__ unsigned short int csum_ipv6_magic(struct in6_addr *saddr,
                                                     struct in6_addr *daddr,
@@ -153,6 +154,7 @@
        BUG();
        return csum_fold(sum);
 }
+#endif

 /*
  *     Copy and checksum to user







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From: Daniel Williams <dan@bigw.org>
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Subject: [parisc-linux] How to Boot CD on C110
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I've got a C110...  I picked up the .9 ISO and burned it with EasyCD 
Creator on a Win2k box (I know, I know, but no access to a linux box 
right now, I'm running FreeBSD and it doesn't have a burner).  Popped it 
in and it won't boot.  Too bad the firmware doesn't see the SCSI CD 
either, when SEArching on bootup.  Both the fixed disks in the unit have 
been wiped, so I have no OS to start from.

SCSI CD is ID 2, but what bus is it on?  The only one I can find 
mentioned is 'core.FWSCSI'.  Trying to 'boot SESCSI.2' doesn't work.  
When I try to boot 'boot core.FWSCSI.2.0'  (the CD as far as I can 
guess) it asks about the interactive thing, I type 'y', then it says 
that it failed to boot and spits out a bunch of numbers onscreen.  Oh, 
when the CD is in the CD drive, the access light on the CD flashes on 
and off steadily, like its being read every second or so, even when the 
machine is doing nothing with it.  Happens when the CD drive is in an 
external box connected to the SE SCSI port on the back too.  Happens on 
the internal 50 pin SE bus as well.

The README-ISO for the boot CD mentions:
 >    After the ISO image is mastered, but before you burn any CDs,
 >    change to this directory and run 'palo -f iso.conf'.  The name
 >    of the ISO image is inside the .conf file and you'll probably
 >    have to change that.
 >    The ISO image is now bootable.  Burn and boot it.

However, I don't have linux anywhere and can't run palo -f iso.conf from 
anything, much less anything with a CD burner.  Is there any way that I 
can make this CD bootable or coax the  machine into booting the raw ISO 
I burned?  Preferably using a Win2k box.  I did a direct burn from ISO 
in EasyCD Creator and it reads fine from any computer I throw it in, 
just doesn't boot on my C110...  Any help greatly appreciated, thanks,

Dan





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From: Christian Suder <csuder@cisco.com>
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Subject: [parisc-linux] How to Boot CD on C110
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Dan,

I assume the CD drive is a 'normal' drive (50 pin SE), not something
exotic like a wide SCSI.

The correct device would be core.SCSI.2.0, however it's strange that
SEArch doesn't even see it. The ID needs to be unique across both the SE
and the FW SCSI. Did you double-check the termination ? The C110 I have
here does have term's on the internal cable, which is different from the
usual PC.

What brand is the CD drive, and does it work on a different machine ?

Anyhow, the fun begins *after* the installation, there seems to be some
issues with the FW SCSI that haven't been sorted out yet. I have severely
corrupted fs within less than an hour.... files with 0x0s amidst the text
e.g.

	Christian




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] How to Boot CD on C110
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Christian Suder wrote:
> I assume the CD drive is a 'normal' drive (50 pin SE), not something
> exotic like a wide SCSI.

It is.
HP didn't ship IDE optical drives on parisc until C3000 workstations.
All internal CD-ROMs before were SE SCSI.

> The correct device would be core.SCSI.2.0, however it's strange that
> SEArch doesn't even see it. The ID needs to be unique across both the SE
> and the FW SCSI.

That's wrong. The ID is local to each SCSI bus.
Ie ID on SE SCSI are in a seperate address space from FWD SCSI.

grant



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Subject: Re: [parisc-linux] How to Boot CD on C110
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Daniel Williams wrote:
> I've got a C110...  I picked up the .9 ISO and burned it with EasyCD 
> Creator on a Win2k box (I know, I know, but no access to a linux box 
> right now, I'm running FreeBSD and it doesn't have a burner).  Popped it 
> in and it won't boot.

Uhm...I tried the same trick for IA64 Debian ISO and it didn't work either.
I should have looked in the parisc-linux mail archives before
since folks have described how to do it right. Anyway, I found a CD-writer
on a linux box and ended up using cdrecord.

> Too bad the firmware doesn't see the SCSI CD 
> either, when SEArching on bootup.

"Sea" should see the CD-ROM. Very likely it's not properly
connected or has the option jumpers set wrong for PDC.

> SCSI CD is ID 2, but what bus is it on?

When it's working right, "sea" should tell you regardless of
whether it has a CD installed or not (I think).

grant



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From: Christian Suder <csuder@cisco.com>
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Subject: Re: [parisc-linux] How to Boot CD on C110
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Grant Grundler wrote:

> 
> > The correct device would be core.SCSI.2.0, however it's strange that
> > SEArch doesn't even see it. The ID needs to be unique across both the SE
> > and the FW SCSI.
> 
> That's wrong. The ID is local to each SCSI bus.
> Ie ID on SE SCSI are in a seperate address space from FWD SCSI.
> 

Maybe my memory fades but I believe I tried this once and it didn't work
to my surprise.... that's why I pointed it out. 


> grant



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From: Daniel Williams <dan@bigw.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] How to Boot CD on C110
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OK, so SEArch should see the CD drive regardless.  Should it also see 
the FWSCSI internal HDs?  They don't have anything on them...  But the 
Firmware doesn't show anything after its done searching, not the 2 HDs, 
the CD, or the DDS tape drive.  Whats that about CD option jumpers set 
wrong?  What should the correct configuration be?  The pins that it has 
on the back (its a HP branded toshiba XM-5401B 50pin narrow) are ID1, 
ID2, ID4, PRTY, PRV/ALW, TEST, and TERM.  ID2 and PRTY have jumpers 
connected, the rest are not shorted.  The CD drive case is an HP 
external drive with 2 HD50 pin connectors on the back.  Comes in 
matching case color and design to the C110.  I've got the cable from the 
external drive connected to the SESCSI port on the back of the C110, but 
the external bus is NOT terminated.  However, when connected to the 
internal 50pin narrow bus, it IS terminated, and bootup does not occur 
nor does SEA see it.  Perhaps the CD drive is whacked, I'll have to do 
network boot then :)  Anyone done that with MacOS X?  j/k.

For making a boot CD, what exactly has to be done to make it boot?  How 
does the firmware recognize that a particular media is bootable and what 
steps does it then take to load the bootstrap code into memory and from 
where on the media does that bootstrap code come?  Can the kernel be 
loaded from a plain ISO or does there need to be special 'first block 
magic code' that will do the rest?

If I try to boot of 'core.SCSI.2.0' it comes back and says ENTRY_INIT, 
nextline STATUS=-7, and then a couple of rows of 8 digit numbers, the 
first being 00000080.  What's it trying to do here?

Thanks again,
Dan

On Thursday, October 25, 2001, at 11:53 PM, Grant Grundler wrote:

> Daniel Williams wrote:
>> I've got a C110...  I picked up the .9 ISO and burned it with EasyCD
>> Creator on a Win2k box (I know, I know, but no access to a linux box
>> right now, I'm running FreeBSD and it doesn't have a burner).  Popped 
>> it
>> in and it won't boot.
>
> Uhm...I tried the same trick for IA64 Debian ISO and it didn't work 
> either.
> I should have looked in the parisc-linux mail archives before
> since folks have described how to do it right. Anyway, I found a 
> CD-writer
> on a linux box and ended up using cdrecord.
>
>> Too bad the firmware doesn't see the SCSI CD
>> either, when SEArching on bootup.
>
> "Sea" should see the CD-ROM. Very likely it's not properly
> connected or has the option jumpers set wrong for PDC.
>
>> SCSI CD is ID 2, but what bus is it on?
>
> When it's working right, "sea" should tell you regardless of
> whether it has a CD installed or not (I think).
>
> grant




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From: Paul Bame <bame@riverrock.org>
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Subject: Re: [parisc-linux] How to Boot CD on C110
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> 
> For making a boot CD, what exactly has to be done to make it boot?  How 
> does the firmware recognize that a particular media is bootable and what 
> steps does it then take to load the bootstrap code into memory and from 
> where on the media does that bootstrap code come?  Can the kernel be 
> loaded from a plain ISO or does there need to be special 'first block 
> magic code' that will do the rest?

Yes there's a special first block, and our ISO images always have it.
The details of the block are well described.  Check the palo README.html,
or the palo data structure 'struct firstblock', or the PDC (firmware)
documents accessable from parisc-linux.org.

But I bet you didn't really want to know how to calculate checksums
and poke magic values into the first block :-)

> If I try to boot of 'core.SCSI.2.0' it comes back and says ENTRY_INIT, 
> nextline STATUS=-7, and then a couple of rows of 8 digit numbers, the 
> first being 00000080.  What's it trying to do here?

Another part of the firmware is called IODC, and I think there's
an iodc.pdf on line.  In there you can search for ENTRY_INIT, which is
a firmware procedure call, and look for the return status of -7 (If you
can't search PDF, look for something like ENTRY_IO and BOOTDEV_READ.
Sorry I don't recall what -7 is, but I'm guessing with your other symptoms
it's saying it can't even initialize the device, because it can't see it.

Until your 'search' command sees something I don't think booting
is going to work.  'Search' cycles through SCSI addresses
and while it's running you should see flashing access lights on
SCSI devices which have them like the CD.  'search' will display
the bootable devices despite what's on the media, though may not
show removable-media devices which are unloaded.  I'm betting on a
cable, connector, or termination problem -- hopefully not a fried
SCSI controller.

Good luck!

	-Paul Bame



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Subject: RE: [parisc-linux] How to Boot CD on C110
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Hi,

	Hi Daniel,

	I had twice the same problem:
	First time I had two devices with the same scsi-id (mea culpa)

	Second time, the (internal) scsi flatcable was half detached
(probably during transport, or fiddling of my fellow workers)...

	Result was identical; after powerup, the SEA command did not show
anything, neither the internal disk, nor the cdrom-drive.


	Hope it helps, Hans.


	Too bad the firmware doesn't see the SCSI CD either, when SEArching
on bootup. 
	



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Hi

On Thu, Oct 25, 2001 at 01:55:48PM +0200, Albert Strasheim wrote:
> Hello,
> 
> I had this same problem on i386 -- I think it's a dependancy
> bug that gets exposed during installation (ppp depending on
> libpcap, I think), which causes some setup scripts to fail
> during installation.
> 
> Look for a start-stop-daemon.REAL file and copy it over your
> start-stop-daemon. I think that should solve the problem. Or
> I'm utterly confused... which is probably more likely. :-)

debootstrap moves start-stop-deamon to start-stop-daemon.REAL
(see /usr/lib/debootstrap/scripts/woody)

It's supposed to move it back again at the end, so maybe it
failed somewhere along the way?

> Regards,
> 
> Albert
> 
> On Thu, 25 Oct 2001, Kenneth Westelinck wrote:
> 
> > Hi all,
> > 
> > 
> > I've recently installed the test-release of woody on my 712/60. I've also 
> > compiled a recent kernel available from the parisc-linux site. All works 
> > well, except from a very strange problem. The start-stop-daemon call, which 
> > is used throughout the init scripts, doesn't seem to work. So, executing the 
> > 
> > inetd script results in nothing, not even an error. Starting inetd on the 
> > command line (/usr/sbin/inetd) works great. Is there a known bug in the 
> > start-stop-daemon program? Can this be solved, or will I have to rewrite my 
> > init scripts?
> > 
> > Many thanks in advance.
> > 
> > 
> > regards,
> > 
> > Kenneth



-- 
Michael Wood <mwood@its.uct.ac.za>



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Subject: Re: [parisc-linux] IMPORTANT CVS CHANGES
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Two more hours until the switch

> 
> It's time to move CVS from puffin.external.hp.com to cvs.parisc-linux.org
> 
> WHEN: Friday, 26-October, noon local time (US-MDT aka GMT-6)
> 
> At noon puffin.external's CVS will go down and shortly thereafter
> CVS will come up on cvs.parisc-linux.org along with an e-mail
> announcement.  Send questions to the list, or if that's too embarassing
> to me or taggart@fc.hp.com
> 
> 		WHAT YOU MUST DO
> 
> 1) You will not need to commit outstanding changes or do anything else
>    unusual prior to the switchover.
> 
> 2) You're probably setting CVSROOT somewhere, perhaps in your
>    .profile.  Change puffin.external.hp.com to cvs.parisc-linux.org and
>    /home/cvs/parisc to /var/cvs
> 
> 3) Every file named CVS/Root will need the same changes as #2.
>    Use the script 'move-cvs' to do this for you -- simply run it
>    in your top-level CVS directories, or the one above that perhaps.
>    'move-cvs' is attached to the end of this message and is available
>    from CVS on puffin.external as build-tools/move-cvs.
> 
> 4) Wherever you used puffin.external in a CVS-related way, start using
>    cvs.parisc-linux.org instead, for example you might have web bookmarks
>    for browsing the CVS archive.
> 
> 5) Don't count on LXR being available any time soon...
> 
>    	-Paul Bame
> 
> 
> ---------- move-cvs script starts next line
> #!/bin/sh
> 
> find . -type d -name CVS -print |
>     while read dir
>     do
> 	[ -s $dir/Root ] || continue
> 	root=$(<$dir/Root)
> 	case $root in
> 	    :pserver:anonymous@puffin.external.hp.com:/home/cvs/parisc)
> 	    	newroot=:pserver:anonymous@cvs.parisc-linux.org:/var/cvs;;
> 	    :ext:*@puffin.external.hp.com:/home/cvs/parisc)
> 		user=${root#:ext:}
> 		user=${user%@puffin.external.hp.com:/home/cvs/parisc}
> 		newroot=:ext:$user@cvs.parisc-linux.org:/var/cvs;;
> 	    puffin.external.hp.com:/home/cvs/parisc)
> 	        newroot=cvs.parisc-linux.org:/var/cvs;;
> 	    /home/parisc/cvs)
> 	    	newroot=cvs.parisc-linux.org:/var/cvs;;
> 	    :pserver:anonymous@pehc:/home/cvs/parisc)
> 	    	newroot=:pserver:anonymous@cvs.parisc-linux.org:/var/cvs;;
> 	    :ext:*@pehc:/home/cvs/parisc)
> 	        newroot=cvs.parisc-linux.org:/var/cvs
> 		user=${root#:ext:}
> 		user=${user%@pehc:/home/cvs/parisc}
> 		newroot=:ext:$user@cvs.parisc-linux.org:/var/cvs;;
> 	    pehc:/home/cvs/parisc)
> 	        newroot=cvs.parisc-linux.org:/var/cvs;;
> 	    /home/parisc/cvs)
> 	    	newroot=cvs.parisc-linux.org:/var/cvs;;
> 	    *) echo -e "\nCannot fix $dir/Root ($root)" >&2
> 	    	continue;;
> 	esac
> 
> 	cp $dir/Root $dir/Root.pehc
> 	echo $newroot > $dir/Root
> 	echo -e ".\c"
>     done
> echo
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/cgi-bin/mailman/listinfo/parisc-linux



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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] WARNING: DO NOT APT-GET UPGRADE HPPA
Date: Fri, 26 Oct 2001 12:27:06 -0600
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As PeteM and others have discovered, upgrading your hppa box currently breaks 
a *lot*.

We are recommending that you DO NOT APT-GET UPGRADE until we find the problem 
and get it fixed. Someone will send an all-clear once it's safe to do so.

We think the latest hppa libc in Debian (2.2.4-3) is to blame but we don't 
know for sure yet.

Stay tuned....

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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Daniel Williams wrote:
> OK, so SEArch should see the CD drive regardless.  Should it also see 
> the FWSCSI internal HDs?

Yes.

>  They don't have anything on them...  But the 
> Firmware doesn't show anything after its done searching, not the 2 HDs, 
> the CD, or the DDS tape drive.

hmm...PDC is pretty brain dead. Were those SCSI devices shipped with the
C110 or installed later?

> Whats that about CD option jumpers set wrong?
> What should the correct configuration be?  The pins that it has 
> on the back (its a HP branded toshiba XM-5401B 50pin narrow) are ID1, 
> ID2, ID4, PRTY, PRV/ALW, TEST, and TERM.  ID2 and PRTY have jumpers 
> connected, the rest are not shorted.

I don't know what they should be - I don't have the product manual.
ID2/PRTY sound like they are correct. I don't konw what PRV/ALW means.
(Prevent/Allow what?). TERM should probably be left disconnected.

BTW, just because the drive is from HP doesn't mean it's setup
to work w/ an HP workstation. Firmware on the drive could do things
that confuse PDC/IODC.

> nor does SEA see it.

You need to figure this output first...try a different drive perhaps.
The FWD drives not being seen concerns me just as much.

grant



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CVS is now running on cvs.parisc-linux.org

	-Paul Bame



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Subject: [parisc-linux] python (toolchain really) problems
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One good reason not to upgrade right now is python is broken, but I'm
pretty sure this is a dynamic linker bug.  I tried my test against
glibc 2.2.4-4 which is currently in incoming.

_start is making it's first function call:

0x1053c <_start+40>:    ldil 20800,dp
0x10540 <_start+44>:    ldo 8(dp),dp
0x10544 <_start+48>:    b,l 0x104d4 <_init+56>,rp

to here:

000104d4 <.text>:
   104d4:       2b 60 00 00     addil 0,dp,%r1
   104d8:       48 35 02 58     ldw 12c(sr0,r1),r21
   104dc:       ea a0 c0 00     bv r0(r21)
   104e0:       48 33 02 60     ldw 130(sr0,r1),r19

r21 contains '0xdeadbeef' -- here are the details:

do_page_fault() pid=16052 command='python2' type=6 address=0x00c0ffef
vm_start = 0x00020000, vm_end = 0x00021000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111
r0-3     0000000000000000 0000000000020808 000000000001054f 0000000040029abc
r4-7     000000004024d048 00000000000bfef0 00000000000bfc30 00000000000bfc30
r8-11    00000000ffffffff 00000000000b9010 00000000000bfd70 00000000000bfcb0
r12-15   0000000000000000 00000000ffffffff 00000000000bfcf0 0000000000000000
r16-19   0000000000000000 0000000000000004 0000000000000004 0000000000020808
r20-23   0000000000020958 00000000deadbeef 0000000000c0ffee 000000000002090e
r24-27   00000000bff003b8 0000000000000001 0000000000020916 0000000000020808
r28-31   0000000000000000 000000007efefeff 00000000bff00580 000000004000ddf7
sr0-3    0000000000001c80 0000000000001c80 0000000000000000 0000000000001c80
sr4-7    0000000000001c80 0000000000001c80 0000000000001c80 0000000000001c80

IASQ: 0000000000001c80 0000000000001c80 IAOQ: 0000000000c0ffef 0000000000c0fff3
 IIR: 43ffff80    ISR: 0000000000001c80  IOR: 000000004033a08c
 CPU:        0   CR30: 0000000013f24000 CR31: 0000000010450000
 ORIG_R28: 00000000bff00b08

$ dpkg --list python2-base libc6
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
iF  python2-base   2.0.1-1.1      An interactive object-oriented scripting lan
ii  libc6          2.2.4-4        GNU C Library: Shared libraries and Timezone

I'll try rebuilding python...

	-Paul Bame



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Well hello world doesn't build with libc6 2.2.4-4 so I went back to -3
and here's what happens to python then:

(gdb) where
#0  0x400453ec in _init () from /usr/lib/libpython2.0.so.0.0
#1  0x40045124 in _init () from /usr/lib/libpython2.0.so.0.0
#2  0x4000dd64 in call_init () from /lib/ld.so.1
#3  0x4000ded4 in _dl_init () from /lib/ld.so.1
#4  0x40002b68 in _dl_start_user () from /lib/ld.so.1

(gdb) disassemble 0x400453ec
No function contains specified address.
[ELF header dump attached]

(gdb) disassemble 0x40045110
Dump of assembler code for function _init:
0x40045104 <_init>:     stw rp,-14(sr0,sp)
0x40045108 <_init+4>:   stw,ma r4,40(sr0,sp)
0x4004510c <_init+8>:   stw r19,-20(sr0,sp)
0x40045110 <_init+12>:  b,l 0x400450f4 <_dl_pagesize+110644>,rp
0x40045114 <_init+16>:  copy r19,r4
0x40045118 <_init+20>:  copy r4,r19
0x4004511c <_init+24>:  b,l 0x400453cc <_init+712>,rp
0x40045120 <_init+28>:  nop
0x40045124 <_init+32>:  copy r4,r19
0x40045128 <_init+36>:  b,l 0x400450e8 <_dl_pagesize+110632>,rp
0x4004512c <_init+40>:  nop
0x40045130 <_init+44>:  copy r4,r19
0x40045134 <_init+48>:  ldw -54(sr0,sp),rp
0x40045138 <_init+52>:  copy r4,r19
0x4004513c <_init+56>:  bv r0(rp)
0x40045140 <_init+60>:  ldw,mb -40(sr0,sp),r4

(gdb) disassemble 0x400453cc
No function contains specified address.

So it looks like _init+24 is branching to 0x400453cc:

$ ldd python2
        libpython2.0.so.0.0 => /usr/lib/libpython2.0.so.0.0 (0x4002b000)
        libpthread.so.0 => /lib/libpthread.so.0 (0x40102000)
        libdl.so.2 => /lib/libdl.so.2 (0x4012b000)
        libutil.so.1 => /lib/libutil.so.1 (0x4013e000)
        libm.so.6 => /lib/libm.so.6 (0x40150000)
        libc.so.6 => /lib/libc.so.6 (0x401e1000)
        /lib/ld.so.1 => /lib/ld.so.1 (0x40000000)


$ objdump -h /usr/lib/libpython2.0.so.0.0

/usr/lib/libpython2.0.so.0.0:     file format elf32-hppa-linux

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  8 .text         0007e700  0001a144  0001a144  0001a144  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE

 17 .plt          00002794  000cfe54  000cfe54  000bfe54  2**2
                  CONTENTS, ALLOC, LOAD, CODE
 18 .got          000023d8  000d25e8  000d25e8  000c25e8  2**2
                  CONTENTS, ALLOC, LOAD, DATA


Disassembly of section .text:

0001a144 <.text>:
   1a144:       e8 20 00 00     b,l 0x1a14c,r1
   1a148:       28 39 60 00     addil 73000,r1,%r1
...

   1a3cc:       6b c2 3f d9     stw rp,-14(sr0,sp)		BRANCH TARGET
   1a3d0:       08 03 02 41     copy r3,r1
   1a3d4:       08 1e 02 43     copy sp,r3
   1a3d8:       6f c1 01 00     stw,ma r1,80(sr0,sp)
   1a3dc:       6b d3 3f c1     stw r19,-20(sr0,sp)
   1a3e0:       0c 73 12 90     stw  r19,8(sr0,r3)
   1a3e4:       2a 60 00 00     addil 0,r19,%r1
   1a3e8:       48 21 0f 68     ldw 7b4(sr0,r1),r1
   1a3ec:       0c 20 10 94     ldw  0(sr0,r1),r20		DIES HERE
   1a3f0:       86 80 20 42     cmpib,=,n 0,r20,0x1a418

do_page_fault() pid=14736 command='python2' type=15 address=0x000bb938
vm_start = 0x00020000, vm_end = 0x00021000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     0000000000000000 00000000000bb938 0000000040045127 00000000bff00680
r4-7     00000000400fce54 000000004002a09c 0000000040028a64 00000000bff003d0
r8-11    00000000bff003c8 0000000000000001 0000000000000001 00000000000cd670
r12-15   0000000000000000 00000000ffffffff 00000000000cd470 0000000000000000
r16-19   0000000000000000 0000000000000004 0000000000000004 00000000400fce54
r20-23   0000000000000001 00000000400c3840 0000000040045104 00000000400288f8
r24-27   00000000bff003d0 00000000bff003c8 0000000000000001 0000000000020808
r28-31   0000000040029a56 000000007efefeff 00000000bff00700 000000004000dd67
sr0-3    00000000009db680 00000000009db680 0000000000000000 00000000009db680
sr4-7    00000000009db680 00000000009db680 00000000009db680 00000000009db680

IASQ: 00000000009db680 00000000009db680 IAOQ: 00000000400453ef 00000000400453f3
 IIR: 0c201094    ISR: 00000000009db680  IOR: 00000000000bb938
 CPU:        0   CR30: 000000002dd9c000 CR31: 0000000010450000
 ORIG_R28: 00000000bff00b08

The dp is libpython + 0xd1e54 which is inside the .plt section.

Maybe a linker problem?

ii  binutils       2.11.92.0.10-1 The GNU assembler, linker and binary utiliti


	-P



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On Fri, Oct 26, 2001 at 04:19:17PM -0600, Paul Bame wrote:
> 
> One good reason not to upgrade right now is python is broken, but I'm
> pretty sure this is a dynamic linker bug.  I tried my test against
> glibc 2.2.4-4 which is currently in incoming.
> 
> _start is making it's first function call:
> 
> 0x1053c <_start+40>:    ldil 20800,dp
> 0x10540 <_start+44>:    ldo 8(dp),dp
> 0x10544 <_start+48>:    b,l 0x104d4 <_init+56>,rp
> 
> to here:
> 
> 000104d4 <.text>:
>    104d4:       2b 60 00 00     addil 0,dp,%r1
>    104d8:       48 35 02 58     ldw 12c(sr0,r1),r21
>    104dc:       ea a0 c0 00     bv r0(r21)
>    104e0:       48 33 02 60     ldw 130(sr0,r1),r19

I agree that it looks like a dynamic linker problem.  For those who might
be confused about how the above stub can lead to an IAOQ of 0x00c0ffee
with r21 = 0xdeadbeef, the explanation is that a little more code has
run than Paul showed.  The address stored at 0x20800+0x12c is that of
the lazy linking .plt stub, which looks like

1: ldw	0(%r20),%r22
   bv	%r0(%r22)
   ldw	4(%r20),%r21
start_here:
   b,l	1b,%r20
   depi	0,31,2,%r20
  .word	fixup_func	initialised to 0x00c0ffee by the linker
  .word	fixup_ltp	initialised to 0xdeadbeef

so for some reason the dynamic linker has failed to replace the fixup_func
dummy value with the real value.  See glibc/sysdeps/hppa/dl_machine.h:
elf_machine_runtime_setup for where this is supposed to happen.  From
the symptoms that Paul has shown here, I'd guess that DT_JMPREL or
DT_PLTRELSZ are missing/zero in Paul's binary, or that for some other
reason, elf_machine_runtime_setup hasn't even been called.

BTW, I don't think lazy linking has ever been tested because dl-machine.h
failed to define ELF_MACHINE_PLTREL_OVERLAP.  This had the unfortunate
effect of always fully relocating .plt.

Anyway, I hope the above explanation is enough for someone to track down
the problem if I don't find time.

Alan

> r21 contains '0xdeadbeef' -- here are the details:
> 
> do_page_fault() pid=16052 command='python2' type=6 address=0x00c0ffef
> vm_start = 0x00020000, vm_end = 0x00021000
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001101111111100001111
> r0-3     0000000000000000 0000000000020808 000000000001054f 0000000040029abc
> r4-7     000000004024d048 00000000000bfef0 00000000000bfc30 00000000000bfc30
> r8-11    00000000ffffffff 00000000000b9010 00000000000bfd70 00000000000bfcb0
> r12-15   0000000000000000 00000000ffffffff 00000000000bfcf0 0000000000000000
> r16-19   0000000000000000 0000000000000004 0000000000000004 0000000000020808
> r20-23   0000000000020958 00000000deadbeef 0000000000c0ffee 000000000002090e
> r24-27   00000000bff003b8 0000000000000001 0000000000020916 0000000000020808
> r28-31   0000000000000000 000000007efefeff 00000000bff00580 000000004000ddf7
> sr0-3    0000000000001c80 0000000000001c80 0000000000000000 0000000000001c80
> sr4-7    0000000000001c80 0000000000001c80 0000000000001c80 0000000000001c80
> 
> IASQ: 0000000000001c80 0000000000001c80 IAOQ: 0000000000c0ffef 0000000000c0fff3
>  IIR: 43ffff80    ISR: 0000000000001c80  IOR: 000000004033a08c
>  CPU:        0   CR30: 0000000013f24000 CR31: 0000000010450000
>  ORIG_R28: 00000000bff00b08



From - Thu Nov 08 21:20:07 2018
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I'm not sure how to solve this problem.  Suggestions appreciated.

If you compile a kernel with the hp100 driver in it, it will attempt to
detect ISA cards by probing.  This works fine when there's an EISA adapter
in the machine as it simply returns -1 when there are no cards present.
With no EISA adapter in the machine, the ioport probes are routed to
Dino instead.  When you attempt to read from a nonexistent io port
through Dino, it causes an HPMC.

This is something which could well cause problems for releasing a distro
as probing for ISA cards in a machine without an EISA adapter will lock
the machine.

Some ways of solving it:
 * change dino_in* to check whether the address is configured.  This could
   be slow.
 * on pre-SuckyIO machines, reserve HBA 0 for EISA.
 * Fix SuckyIO so that it doesn't assume it's on PCI bus 0 and always reserve
   HBA 0 for EISA.
 * Don't compile drivers which probe for ISA addresses or fix them to not
   probe unless there's an EISA adapter.  Lots of work, won't catch
   everything, dubious what strategy would be acceptable upstream.
 * Write an HPMC handler that recovers from Dino going fatal.
 * Turn on Less-than-fatal mode in Dino and handle resetting it...
   don't know how well this would work.

I don't know what Elroy does on reads of unassigned addresses.  This will
probably affect the decision of how to fix this since we want to ship
a 32-bit kernel that can boot on everything from a 720 to a J7000.

-- 
Revolutions do not require corporate support.



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On Sat, Oct 27, 2001 at 10:48:24AM +0930, Alan Modra wrote:
> BTW, I don't think lazy linking has ever been tested because dl-machine.h
> failed to define ELF_MACHINE_PLTREL_OVERLAP.  This had the unfortunate
> effect of always fully relocating .plt.

Ah, that explains why the glibc tests that required lazy linking to work
always failed.

-- 
Revolutions do not require corporate support.



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Matthew Wilcox wrote:
> I don't know what Elroy does on reads of unassigned addresses.  This will
> probably affect the decision of how to fix this since we want to ship
> a 32-bit kernel that can boot on everything from a 720 to a J7000.

C3000 HPMC's. I just commited -pa72 in order to test this.
I built HP100 as a module w/o CONFIG_EISA defined.
"modeprobe hp100" results in an HPMC.

Off hand, I don't have any good ideas on fixing the problem.
I'll think about it some more.

grant



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Matt

Even stranger.....

I downgraded apache from 1.3.22-2 to 1.3.20-1.1 & I now have a functioning
apache.

Now my box is happy but my mind is still a little confused.

PeteM

On Fri, 26 Oct 2001, Matt Taggart wrote:

[SNIP]
>
> We think the latest hppa libc in Debian (2.2.4-3) is to blame but we don't
> know for sure yet.
>
> Stay tuned....
>
>





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This is a multi-part message in MIME format.
--------------DE19AA66CC3EFD0503049108
Content-Type: text/plain; charset=us-ascii
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Hi all,

	We are using some scripts using Expect language and they die with a
segmentation fault and you can read this output in the dmesg:

do_page_fault() pid=1068 command='webco' type=15 address=0x000ac800
vm_start = 0x00020000, vm_end = 0x00021000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000100001111
r0-3     00000000 000ac800 400864a7 faf00440
r4-7     40124438 4002a09c 40028a64 faf001c8
r8-11    faf001b8 00000003 00000003 000b9750
r12-15   00000000 ffffffff 000b9930 00000000
r16-19   00000000 00017800 00017800 40124438
r20-23   00000001 00010b9c 40086484 400288f8
r24-27   faf001c8 faf001b8 00000003 00020cb4
r28-31   4001d806 7efefeff faf004c0 4000dd67
sr0-3    00000000 00000af9 00000000 00000af9
sr4-7    00000af9 00000af9 00000af9 00000af9

IASQ: 00000af9 00000af9 IAOQ: 40086607 4008660b
 IIR: 0c201094    ISR: 00000af9  IOR: 000ac800
 CPU:        0   CR30: 16554000 CR31: 102e0000
 ORIG_R28: 4002a09c

I have recently updated glibc 2.2.4-3 but I tried Helge Deller's
"working" version with no result and I tried to recompile the package
and it was useless :( I also attached the output of strace -o output
webco 

If anyone has an idea, please try to fix it.

Thomas
ESIEE Team
--------------DE19AA66CC3EFD0503049108
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 name="output"
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 filename="output"

execve("/usr/local/bin/webco", ["webco"], [/* 19 vars */]) = 0
newuname({sys="Linux", node="dharma", ...}) = 0
brk(0)                                  = 0x21000
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 7078, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40019000
close(3)                                = 0
open("/usr/lib/libexpect5.32.so.1", O_RDONLY) = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\237"..., 1024) = 1024
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 278388, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4002b000
mprotect(0x4005a000, 85876, PROT_NONE)  = 0
mmap(0x40069000, 16384, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x2e000) = 0x40069000
mmap(0x4006d000, 8052, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4006d000
close(3)                                = 0
open("/usr/lib/libtcl8.3.so.1", O_RDONLY) = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\1t\304"..., 1024) = 1024
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 752784, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4006f000
mprotect(0x4010c000, 109712, PROT_NONE) = 0
mmap(0x4011b000, 49152, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x9c000) = 0x4011b000
close(3)                                = 0
open("/lib/libdl.so.2", O_RDONLY)       = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0 D"..., 1024) = 1024
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 75736, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40127000
mprotect(0x4012a000, 63448, PROT_NONE)  = 0
mmap(0x40139000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x2000) = 0x40139000
close(3)                                = 0
open("/lib/libm.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\244"..., 1024) = 1024
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 592524, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4013a000
mprotect(0x401b9000, 72332, PROT_NONE)  = 0
mmap(0x401c8000, 12288, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x7e000) = 0x401c8000
close(3)                                = 0
open("/lib/libutil.so.1", O_RDONLY)     = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\16"..., 1024) = 1024
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 73600, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x401cb000
mprotect(0x401cd000, 65408, PROT_NONE)  = 0
mmap(0x401dc000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x1000) = 0x401dc000
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2z\240"..., 1024) = 1024
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001b000
mmap(NULL, 1416396, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x401dd000
mprotect(0x4031a000, 117964, PROT_NONE) = 0
mmap(0x40329000, 45056, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x13c000) = 0x40329000
mmap(0x40334000, 11468, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40334000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001c000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001d000
mprotect(0x10000, 4096, PROT_READ|PROT_WRITE) = 0
mprotect(0x10000, 4096, PROT_READ|PROT_EXEC) = 0
munmap(0x40019000, 7078)                = 0
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++

--------------DE19AA66CC3EFD0503049108--




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On Fri, 2001-10-26 at 20:27, Matt Taggart wrote:
> As PeteM and others have discovered, upgrading your hppa box currently breaks 
> a *lot*.


Every program that is linked agains gtk+ segfaults, no matter if it uses
gtk or not. It seems to be a linker problem.

andi








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On Sun, 2001-10-28 at 01:32, andi wrote:
> On Fri, 2001-10-26 at 20:27, Matt Taggart wrote:
> > As PeteM and others have discovered, upgrading your hppa box currently breaks 
> > a *lot*.
> 
> 
> Every program that is linked agains gtk+ segfaults, no matter if it uses
> gtk or not. It seems to be a linker problem.

2.2.4-4 fixes that problem. python however is still broken.

andi





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On Sat, Oct 27, 2001 at 04:21:50PM +0200, Thomas Marteau wrote:
> 
> 	We are using some scripts using Expect language and they die with a
> segmentation fault and you can read this output in the dmesg:

This isn't a fix, but may be a workaround:  Try "export LD_BIND_NOW=1" to
disable lazy binding by the dynamic linker.

Alan




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There appears to be a problem on this page of your site.

    On page http://www.parisc-linux.org/weekly/20000310.html
    when you click on "webpage",
    the link to http://www.parisc-linux.org/buzzwords.html
    gives the error: Not found.

As recommended by the Robot Guidelines, this email is to explain our robot's
activities and to let you know about one of the broken links we encountered.
LinkWalker does not store or publish the content of your pages, but rather
uses the link information to update our map of the World Wide Web.

Are these reports helpful? I'd love some feedback. If you prefer not to
receive these occasional error notices please let me know.

Roy Bryant

 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Roy Bryant, roybryant@seventwentyfour.com
 President
 SEVENtwentyfour Inc. ("Always watching the Web")
 http://www.seventwentyfour.com
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 



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Subject: [parisc-linux] Creating boot CD with MacOS X
Date: Mon, 29 Oct 2001 08:15:15 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:12848

OK...  I've done a quick and dirty port of palo to MacOS X/Darwin.  
Here's my output:

[localhost:~/Desktop] dan% ./palo -f ./iso.conf
palo version 0.95 dan@localhost Sun Oct 28 23:53:13 CST 2001
ELF32 executable
ipl: addr 192512 size 26624 entry 0x0
  ko 0x0 ksz 0 k64o 0x0 k64sz 0 rdo 0 rdsz 0
<>
ipl: addr 192512 size 26624 entry 0x0
  ko 0x6ad6800 ksz 2853588 k64o 0x0 k64sz 0 rdo 118468608 rdsz 1991209
<0/vmlinux root=/dev/ram initrd=0/ramdisk>

And the iso.conf file contains:
-c0/vmlinux root=/dev/ram initrd=0/ramdisk
-k/Volumes/palinux-0.9.1/debian/dists/sid/main/disks-
hppa/current/32/vmlinux
-b/Volumes/palinux-0.9.1/iplboot
-r/Volumes/palinux-0.9.1/debian/dists/sid/main/disks-
hppa/current/root.bin
-C./palinux-0.9.2.iso

/Volumes/palinux-0.9.1 is a mounted image of the palinux-0.9.2 ISO 
file.  It's not the same file that I'm trying to modify with palo.  
Anyway, does this look like it would work to boot from if I copied the 
modified ISO to a Win2k machine to burn directly to CD with EasyCD 
Creator?

Thanks,
Dan




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From: "jean-yves GUILLEVIC" <jean-yves.guillevic@wanadoo.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 715S/33 aka Strider-33
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Hello All

I got a 715S/33 aka Strider-33 than does not want to boot PALINUX :~)
this is some information about my machine as Thomas Marteau requested.
i do not have HPUX so i cannot record it and answer some questions in the
hardware database.
i record my machine as a 715/33 aka Scorpio-33 but it is not one.it is a
Strider-33
there is many ref for this machine Apollo modele 715t/33 (from the front)
and also 425t (back)
i do my kernel by myself because none of the other went so far from the
CDROM v0.9.0 and v0.9.2.
i use linux-20011011.tar.gz
the x-compiler comes from  xc-20010905.tar.gz
and for palo palo-20010909.tar.gz
i build a disque on a pc and i plug it in the HPPA. (and try one more
boot...)
if someone can help he will be welcome.
if someone wants more info just ask.
Regards
Jean-Yves

following a listing of my best infos:

(c) Copyright.  Hewlett-Packard Company.  1992.
All rights reserved.
Portions of this code are (c) Copyright Samsung Electronics Co., Ltd, 91, 92

PDC ROM rev. 1.0
IODC ROM rev. 1.0
64 MB of memory have been configured.


Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.3.0                 FUJITSU M1606S-512



b)   Boot from specified device
s)   Search for bootable devices
a)   Enter Boot Administration mode
x)   Exit and continue boot sequence
?)   Help

Select from menu: a
BOOT_ADMIN> info all
---------------------- Boot Sequence/Miscellaneous
Information ---------------

Wed Oct  10 21:36:01 GMT 2001    (20:01:10:10:21:36:01)
OSF Operating System selected.
Autoselect OFF.
Secure Boot Mode OFF.
LAN Station Address:  080009-41f40f
FASTSIZE =      0x08   ( 64 MB)
64 MB of memory have been configured.

Primary boot path   = scsi.6.0
Alternate boot path = scsi.5.0
Console path        = graphics_1
Keyboard path       = hil

----------- I/O and Processor Dependent Code (PDC/IODC)
Revisions -----------

Processor Dependent Code (PDC) Revision  = 1.0

EISA Adapter IODC
     Hardware Version              208     (0x000000d0)
     Software Version            30208     (0x00007600)

SCSI IODC
     Hardware Version              208     (0x000000d0)
     Software Version            28928     (0x00007100)
     IODC Revision                   0     (0x00000000)

LAN IODC
     Hardware Version              208     (0x000000d0)
     Software Version            29184     (0x00007200)
     IODC Revision                   0     (0x00000000)

RS232 IODC
     Hardware Version              208     (0x000000d0)
     Software Version            29952     (0x00007500)
     IODC Revision                   0     (0x00000000)

HP-HIL IODC
     Hardware Version              208     (0x000000d0)
     Software Version            29440     (0x00007300)
     IODC Revision                   0     (0x00000000)


----------------------------- Hardware
Configuration ------------------------

Machine model: 9000/715

Processor Frequency             = 33333500 Hz
I/O Subsystem Frequency         = 16666750 Hz

SCSI Jumper Frequency setting   = 33333500 Hz
EISA Jumper Frequency setting   = 16500000 Hz


LAN Jumper Status: Internal ThinLAN Port selected

Processor Revision                  = 8
System Controller Revision          = 0
Floating Point Coprocessor Revision = 1

Hardware Version            12592     (0x00003130)
Software Version             1153     (0x00000481)

----------------------------------------------------------------------------

(c) Copyright.  Hewlett-Packard Company.  1992.
All rights reserved.
Portions of this code are (c) Copyright Samsung Electronics Co., Ltd, 91, 92

PDC ROM rev. 1.0
IODC ROM rev. 1.0
64 MB of memory have been configured.


Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.3.0                 FUJITSU M1606S-512



b)   Boot from specified device
s)   Search for bootable devices
a)   Enter Boot Administration mode
x)   Exit and continue boot sequence
?)   Help

Select from menu: b p0

Trying scsi.3.0
Boot path initialized.
Attempting to load IPL.


Hard booted.
palo ipl 0.94 root@jygx Sat Oct 20 08:59:09 CEST 2001
0/vmlinux32 3154742 bytes @ 0x48000
Partition Start(MB) End(MB) Id Type
1               1      23   f0 Palo
2              24     925   83 ext2
3             926    1035   82 swap

Command line: 'HOME=/ TERM=linux root=/dev/sda2 console=ttyS0'

Kernel: partition 2 file /vmlinux32
ext2 block size 4096
ext2_mount(partition 2) returns 0
Opening /vmlinux32
ext2_open(/vmlinux32) = 3
ELF32 executable
Entry 001000d0 first 00100000 n 6
Segment 0 load 00100000 size 1711660 mediaptr 0x1000
Segment 1 load 002a2000 size 281928 mediaptr 0x1a3000
Segment 2 load 002e8000 size 381244 mediaptr 0x1e8000
Segment 3 load 00348000 size 8192 mediaptr 0x246000
Segment 4 load 00350000 size 32768 mediaptr 0x248000
Segment 5 load 0038e67c size 88016 mediaptr 0x25067c
branching to kernel entry point 0x001000d0
Linux version 2.4.9-pa47 (root@jygx) (gcc version 3.0.2 20010829
(prerelease)) #3 Sat Oct 20 08:54:02 CEST 2001
Kernel loaded. Setup...
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00003130 00000481 00000000 00000000 7825e314 ffffffff 00000004
0000000a 0000000a
vers 00000008
CPUID vers 0 rev 0
model 9000/715
Total Memory: 64 Mb
pagetable_init
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/sda2 console=ttyS0
Console: colour dummy device 160x64
Calibrating delay loop... 33.17 BogoMIPS
Memory: 61656k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Searching for devices...
Found devices:
1. Strider-33 Core BA (11) at 0xf082f000, versions 0xd, 0x0, 0x70
2. Strider-33 Core SCSI (10) at 0xf0825000, versions 0xd, 0x0, 0x71
3. Strider-33 Core LAN (802.3) (10) at 0xf0826000, versions 0xd, 0x0, 0x72
4. Strider-33 Core HIL (10) at 0xf0821000, versions 0xd, 0x0, 0x73
5. Strider-33 Core RS-232 (10) at 0xf0823000, versions 0xd, 0x0, 0x75
6. Strider-33 Core RS-232 (10) at 0xf0822000, versions 0xd, 0x0, 0x75
7. Strider-33 Core Centronics (10) at 0xf0824000, versions 0xd, 0x0, 0x74
8. Strider-33 Audio (10) at 0xf1000000, versions 0xd, 0x0, 0x7b
9. Strider-33 Core EISA (11) at 0xfc000000, versions 0xd, 0x0, 0x76
10. Strider-33 (715S/33) (0) at 0xfffbe000, versions 0x313, 0x0, 0x4
11. Strider-33 (707T) (1) at 0xfffbf000, versions 0x1d, 0x0, 0x9
That's a total of 11 devices.
CPU(s): 1 x PA7100 (PCX-T) at 33.333500 MHz
Mongoose EISA Adapter found at 0xfc000000
Asp version 1 at 0xf0800000 found.
LED (ASP-style) display at f0800020 registered
POSIX conformance testing by UNIFIX
**************JYG 20011012***************
lock_kernel.
do_basic_setup.
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Found HIL at 0xf0821000, IRQ 94
HIL: no keyboard present.
Warning : device (10, 0xd, 0x0, 0x73) NOT claimed by HIL
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0826000, IRQ 87
82596.c: MAC of HP700 LAN read from EEPROM
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 41 F4 0F IRQ 87.
82596.c $Revision: 1.23 $
SCSI subsystem driver Revision: 1.00
53c700: consistent memory allocation failed
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0
scsi0 : LASI SCSI 53c700
  Vendor: FUJITSU   Model: M1606S-512        Rev: 6C01
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 3, lun 0
scsi0: (3:0) Enabling Tag Command Queuing
SCSI device sda: 2131992 512-byte hdwr sectors (1092 MB)
Partition check:
 sda: sda1 sda2 sda3



Dumping Stack from 104fc000 to 104fc600:
c000 00000000 00000040 00000000 00000000 102b5160 00000000 00000000 ffffffff
c020 00000004 00000000 00000000 00000000 00000000 00000000 ffffffff 102b23e0
c040 102b23e0 00000b45 104f4000 10348000 102bb600 00000000 00000000 00000000
c060 00000000 00000000 00000000 00000001 00000000 00000000 00000000 00000000
c080 00000000 10348000 10348000 104d0000 104ec000 00000000 104dc098 10348098
c0a0 00000000 102b40b4 104fc0a8 104fc0a8 00000000 00000000 00000000 00000000
c0c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 104fc000
c0e0 1011b008 00000000 00000204 00000000 00000000 000008bc 00000000 00000ac0
c100 00000000 00000000 00000000 00000000 00000000 00000000 80000000 00000000
c120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c1c0 fffffeff 00000000 ffffffff 00000000 102b6120 ffffffff ffffffff ffffffff
c1e0 ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff ffffffff
c200 ffffffff 000003c3 000003c3 00000400 00000400 ffffffff ffffffff ffffffff
c220 ffffffff ffffffff ffffffff 00007377 61707065 72000000 00000000 00000000
c240 00000000 00000000 00000000 00000000 00000000 00000000 00003c36 00800327
c260 102b7010 00003c36 000ff000 1027a170 1002ada0 0004000e fc4ff000 fc4ff000
c280 00000089 10119424 0006e480 00003c36 00800327 10361810 1035d75b 102e8fd4
c2a0 00000024 0000003c 0000003e 102b5010 00000001 1035d75b 00000089 00000000
c2c0 10100420 00003c36 00000000 0000000b 10350000 0006e480 00003c36 10365abc
c2e0 10287884 1002e120 00000089 10350000 0006e480 00003c36 00008124 1035d73a
c300 1035d737 101595e4 00000010 00000010 00000000 00000000 00000003 00000000
c320 10348554 10287a70 00000000 102e8fd4 00000000 102e1804 1035a290 1035a010
c340 1035a010 101595e4 102e18d4 1035a650 41000000 00000000 00000003 00000000
c360 10348594 1028787c 00000000 103a4e40 1029a2e8 1029a2ec fc4ff000 00000089
c380 00000008 10159018 0000000a 1035a6c8 103485e8 00000000 fc4ff000 00000001
c3a0 00008124 10348594 000000f0 103a4240 00000000 1002d000 1002c040 1035a010
c3c0 1035a010 10159018 fffffff0 10027120 30313233 34353637 00000000 1002c040
c3e0 1002b0a0 1002c040 00000000 102b7410 0004000e fc4ff000 fc4ff000 1035a010
c400 1035a010 1012f338 00000000 1035d010 00000001 104fc9c0 10106cf0 00000001
c420 000000f0 00000000 000000f0 103a4e40 fff00000 40000000 00000000 00000000
c440 102bb040 102bb060 102bb1fc 00000000 00000000 00000000 104fc454 00000000
c460 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c480 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c4a0 00000000 00000000 00000000 10106c4c 00000000 00000000 00000000 00000000
c4c0 00000000 10348000 00000000 00000000 0000088b 00000001 00000001 1027a244
c4e0 00000000 00000000 00000000 10100458 00000000 00000000 00000000 00000000
c500 10348000 00be0000 f0001018 000ff000 001a5a59 102e8fd4 0004000e fc4ff000
c520 102b5010 104fc000 102bb600 102e9194 10348000 00be0000 00000000 00000000
c540 104fc000 102bb600 00000000 1034513c 1034510c 104d9c40 102b7410 1028d8d0
c560 1034513c 103450cc 00000000 102fa9e0 00000000 00000000 00000000 00000000
c580 1034513c 10345104 00000000 104fc58c 104fc58c 103450e4 00000000 104fc58c
c5a0 104fc58c 104fc000 fc4ff000 1010a828 104fc000 102bb600 102d4af0 1034513c
c5c0 00000007 102d5d50 1035a5d8 0004000e fc4ff000 102b5010 102d4010 00000000
c5e0 102d5544 00000000 00000000 102fab74 102d53d0 104d9d40 00000000 104d9d40

High Priority Machine Check (HPMC): Code=1 regs=102a5080 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111000001111
r0-3     00000000 1021e800 102fab98 10373810
r4-7     10374004 1035a5d8 1035a010 1035a010
r8-11    102b5010 fc4ff000 0004000e 102e8fd4
r12-15   001a5a59 000ff000 f0001018 00000000
r16-19   00000001 08000058 f000069c 0000000f
r20-23   00000000 102d5d40 1021fed0 0000ffff
r24-27   102d5c68 10295c10 f1000001 102a2010
r28-31   000000ff 00000780 104fc600 1021f244
sr0-3    00000000 00000000 00000000 00000000
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1021efe8 1021efec
 IIR: e840c000    ISR: 00000000  IOR: 102fab98
 CPU:        0   CR30: 104fc000 CR31: 10350000
 ORIG_R28: 00000000






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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 715S/33 aka Strider-33
Date: Mon, 29 Oct 2001 20:54:28 +0000
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To: jean-yves GUILLEVIC <jean-yves.guillevic@wanadoo.fr>
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On Mon, Oct 29, 2001 at 09:43:12PM +0100, jean-yves GUILLEVIC wrote:
> if someone can help he will be welcome.
> if someone wants more info just ask.

> High Priority Machine Check (HPMC): Code=1 regs=102a5080 (Addr=00000000)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111000001111
> r0-3     00000000 1021e800 102fab98 10373810
> r4-7     10374004 1035a5d8 1035a010 1035a010
> r8-11    102b5010 fc4ff000 0004000e 102e8fd4
> r12-15   001a5a59 000ff000 f0001018 00000000
> r16-19   00000001 08000058 f000069c 0000000f
> r20-23   00000000 102d5d40 1021fed0 0000ffff
> r24-27   102d5c68 10295c10 f1000001 102a2010
> r28-31   000000ff 00000780 104fc600 1021f244
> sr0-3    00000000 00000000 00000000 00000000
> sr4-7    00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 1021efe8 1021efec
>  IIR: e840c000    ISR: 00000000  IOR: 102fab98
>  CPU:        0   CR30: 104fc000 CR31: 10350000
>  ORIG_R28: 00000000

Let's start by decoding 1021efe8 in your System.map.  102fab98 is probably
in the function which called it.  It may or may not be useful to decode
some of the earlier addresses in the stack dump -- normally IAOQ and r2
are enough to give an initial starting point for investigating.

I'm going to guess though that you were in gsc_readb or similar.  The first
argument is in gr26 and it's 0xf1000001.  Given your output:

> 8. Strider-33 Audio (10) at 0xf1000000, versions 0xd, 0x0, 0x7b

I would guess that disabling sound would allow the kernel to boot a
little further.  Could you investigate this please?

-- 
Revolutions do not require corporate support.



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Hello,

Quoting aungho <aungho@sina.com>:

> hi,
> thank you,that problem have been solved.

Happy that it helps you too.

> But other problems:

> 1.can HP_UX 11.11 for pa_risc 2.0 on L2000 gcc complier,we find gcc for
> HP_ux 11.00 for pa_risc 1.x and HP_UX 10.0 and they work normally,how to
> get  gcc complier for hp_ux 11.11.
> 

I have no news about this. But is it an actual problem?

> 2.Linux for pa_risc is only a test version.

You have right. But it seems quiet stable now.

Joel



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/var/cvs/obsolete/binutils-2.10 seems to be locked by uid26947.

Probably need to make some entries in the modules file. (Otherwise why 
would I want something from the obsolete directory?)


-- 
____               .:.                 ____
Bryan W. Headley - bheadley@interaccess.com




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On Tue, Oct 30, 2001 at 10:00:55AM -0600, Bryan W. Headley wrote:
> /var/cvs/obsolete/binutils-2.10 seems to be locked by uid26947.
> 
> Probably need to make some entries in the modules file. (Otherwise why 
> would I want something from the obsolete directory?)

Mmm, no, it seems to be deliberate.  pehc:/etc/passwd:
dir_renamed_read_your_mail:!!:26947:26947::/home/dir_renamed_read_your_mail:/bin/bash
which was put in place by Mike Ang _many_ months ago.  I thought this
directory was going to be deleted as part of the move to cvs.p-l.org.

Why do you want binutils-2.10 anyway?

-- 
Revolutions do not require corporate support.



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joel.soete@freebel.net wrote:
> Quoting aungho <aungho@sina.com>:
> > But other problems:
> 
> > 1.can HP_UX 11.11 for pa_risc 2.0 on L2000 gcc complier,we find gcc for
> > HP_ux 11.00 for pa_risc 1.x and HP_UX 10.0 and they work normally,how to
> > get  gcc complier for hp_ux 11.11.

I'm pretty sure you can use the same toolchain as on 11.00.
HP has released a CD (and ISO image) with PA20 gcc/binutils
toolchain for HPUX 11. The one I have in front of me is labeled:
	"HP-UX 11.0 PA-RISC Open Source Developer Toolkit, Release 000310"

I think I found it's replacement on www.software.hp.com at:
http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/displayProductInfo.pl?productNumber=B9891AA


> > 2.Linux for pa_risc is only a test version.
> 
> You have right. But it seems quiet stable now.

I agree the kernel is stable but:
o not everything on every platform works
o most older servers still not support at all (eg EFGHI/K/T/V-class)
o toolchain and kernel changes aren't fully merged upstream.

It's definitely not a "mature product". But lots of cool
things (eg XF86, iptables, apache, tcpdump, apt-get) do work
on many parisc boxes.

grant



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Fixes a mismatch between elf32_hppa_size_dynamic_sections, where .plt
relocs aren't counted in the total reloc count, and finish_dynamic_sections,
where the default elf scheme counts 'em.  Things sort-of worked previously
due to various bugs in ld.so cancelling out.  

bfd/ChangeLog
	* elf32-hppa.c (elf32_hppa_finish_dynamic_sections): Don't count
	.plt relocs in DT_RELASZ.

This means glibc/sysdeps/hppa/dl-machine.h should no longer define
ELF_MACHINE_PLTREL_OVERLAP.

-- 
Alan Modra
 
Index: bfd/elf32-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
retrieving revision 1.56
diff -u -p -r1.55 elf32-hppa.c
--- elf32-hppa.c	2001/10/31 14:58:14	1.56
+++ elf32-hppa.c	2001/10/31 15:22:53
@@ -4273,6 +4273,19 @@ elf32_hppa_finish_dynamic_sections (outp
 		dyn.d_un.d_val = s->_cooked_size;
 	      else
 		dyn.d_un.d_val = s->_raw_size;
+	      break;
+
+	    case DT_RELASZ:
+	      /* Don't count procedure linkage table relocs in the
+		 overall reloc count.  */
+	      if (htab->srelplt != NULL)
+		{
+		  s = htab->srelplt->output_section;
+		  if (s->_cooked_size != 0)
+		    dyn.d_un.d_val -= s->_cooked_size;
+		  else
+		    dyn.d_un.d_val -= s->_raw_size;
+		}
 	      break;
 	    }
 



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Subject: [parisc-linux] Bug in flush_dcache_page?
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Thomas Bogendoerfer's being trying to get an L3000 to boot, and is seeing
similar problems to those seen by Bjorn on Superdome.  I think I have a lead.
Documentation/cachetlb.txt says:

  void flush_dcache_page(struct page *page)

        Any time the kernel writes to a page cache page, _OR_
        the kernel is about to read from a page cache page and
        user space shared/writable mappings of this page potentially
        exist, this routine is called.

Our implementation does:

static inline void flush_dcache_page(struct page *page)
{
        if (page->mapping && !page->mapping->i_mmap &&
                        !page->mapping->i_mmap_shared) {
                set_bit(PG_dcache_dirty, &page->flags);
        } else {
                flush_kernel_dcache_page(page_address(page));
        }
}

What we're missing is the case where the user has dirtied the page,
then the kernel calls flush_dcache_page before writing to the page.
This strikes me as a bad interface... there should be different interfaces
for `before the kernel writes' and `after the kernel writes', but let's
see if we can fix our implementation.

we have an interface to use, flush_user_dcache_range.  so we can iterate
over all the mappings and flush each of the user ranges.  btw, we're missing
an optimisation -- if page->mapping is NULL, we can set the PG_dcache_dirty
bit.  This lets us optimise a little more:

static inline void flush_dcache_page(struct page *page)
{
	if (!page->mapping || (page->mapping && !page->mapping->i_mmap &&
			!page->mapping->i_mmap_shared)) {
		set_bit(PG_dcache_dirty, &page->flags);
	} else {
		struct vm_area_struct *vma;
		for (vma = page->mapping->i_mmap; vma; vma = vma->vm_next) {
			flush_user_page(vma->vm_mm, vma->vm_start + page->index);
		}
		if (page->mapping->i_mmap_shared) {
			vma = page->mapping->i_mmap_shared;
			flush_user_page(vma->vm_mm, vma->vm_start + page->index);
		}
		flush_kernel_dcache_page(page_address(page));
	}
}

We only need to flush the first shared mapping because they're all congruent
modulo 4MB.  I suspect there are other optimisations possible (is it
really possible to have multiple _dirty_ pages on the i_mmap list?)
but this might work better.

OTOH this is adding a lot of complexity for an inline function.  maybe we
should just call flush_data_cache() and have done with it :-(

-- 
Revolutions do not require corporate support.



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On Wed, Oct 31, 2001 at 05:39:05PM +0000, Matthew Wilcox wrote:
> static inline void flush_dcache_page(struct page *page)
> {
> 	if (!page->mapping || (page->mapping && !page->mapping->i_mmap &&
> 			!page->mapping->i_mmap_shared)) {
> 		set_bit(PG_dcache_dirty, &page->flags);
> 	} else {
> 		struct vm_area_struct *vma;
> 		for (vma = page->mapping->i_mmap; vma; vma = vma->vm_next) {
> 			flush_user_page(vma->vm_mm, vma->vm_start + page->index);
> 		}
> 		if (page->mapping->i_mmap_shared) {
> 			vma = page->mapping->i_mmap_shared;
> 			flush_user_page(vma->vm_mm, vma->vm_start + page->index);
> 		}
> 		flush_kernel_dcache_page(page_address(page));
> 	}
> }

Aha.  A couple of things from talking to various VM/VFS people...
1. page->mapping is guaranteed to exist for pages in the page cache --
   this is how they're located.
2. If a page is simultaneously mapped in both user and kernel space, and
   user space touches it, either it leaves the page cache or it was mapped
   shared.

flush_dcache_page is only called on pages in the page cache, so we can
assume that page->mapping exists, and we don't need to flush any user
mappings of this page.

	if (!page->mapping->i_mmap & !page->mapping->i_mmap_shared) {
		set_bit(PG_dcache_dirty, &page->flags);
	} else {
		struct vm_area_struct *vma = page->mapping->i_mmap_shared;
		if (vma) {
			flush_user_page(vma->vm_mm, vma->vm_start + page->index);
		}
		flush_kernel_dcache_page(page_address(page));
	}

-- 
Revolutions do not require corporate support.



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The recent article in Byte
(http://www.byte.com/documents/s=1436/byt20011024s0002/1029_moshe.html)
makes me curious; is the current pa-risc Linux port using a Rik van Viel VM
or Andrea Arcangeli VM or some pa-risc port specific design?

Is there possibly a large changeover looming dependent upon what shakes out
in the Linus tree?

Kevin



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On Wed, Oct 31, 2001 at 01:29:14PM -0500, CARSON,KEVIN (HP-Canada,ex1) wrote:
> The recent article in Byte
> (http://www.byte.com/documents/s=1436/byt20011024s0002/1029_moshe.html)
> makes me curious; is the current pa-risc Linux port using a Rik van Viel VM
> or Andrea Arcangeli VM or some pa-risc port specific design?
> 
> Is there possibly a large changeover looming dependent upon what shakes out
> in the Linus tree?

We're sticking with 2.4.9 until we see a Linus kernel that's a little
more stable.  That's from slightly before Linus introduced Andrea's VM.

i just posted a small patch we need to linux-mm
http://mail.nl.linux.org/linux-mm/2001-10/msg00098.html
which is the equivalent of the only major vm change that we have
in our tree.  There's a couple of minor ones:

diff -u -p -r1.1.1.5 -r1.8
--- mm/shmem.c  2001/08/15 16:33:42     1.1.1.5
+++ mm/shmem.c  2001/10/01 10:19:21     1.8
@@ -377,6 +377,7 @@ repeat:
                if (!page)
                        return ERR_PTR(-ENOMEM);
                clear_highpage(page);
+               flush_dcache_page(page);
                inode->i_blocks += BLOCKS_PER_PAGE;
                add_to_page_cache (page, mapping, idx);
        }
diff -u -p -r1.1.1.13 -r1.15
--- mm/vmscan.c 2001/08/16 22:10:13     1.1.1.13
+++ mm/vmscan.c 2001/09/06 09:44:13     1.15
@@ -120,6 +120,7 @@ static void try_to_swap_out(struct mm_st
         * any IO - it's already up-to-date on disk.
         */
        if (PageSwapCache(page)) {
+               flush_cache_page(vma, address);
                entry.val = page->index;
                if (pte_dirty(pte))
                        set_page_dirty(page);

I don't anticipate either of these changes being major merge problems.

-- 
Revolutions do not require corporate support.



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>>>>> "Kevin" == CARSON,KEVIN (HP-Canada,ex1) <kevin_carson@hp.com> writes:

Kevin> The recent article in Byte
Kevin> (http://www.byte.com/documents/s=1436/byt20011024s0002/1029_moshe.html)
Kevin> makes me curious; is the current pa-risc Linux port using a Rik
Kevin> van Viel VM or Andrea Arcangeli VM or some pa-risc port
Kevin> specific design?

Kevin> Is there possibly a large changeover looming dependent upon
Kevin> what shakes out in the Linus tree?

There'll be some shaking up depending on what happens in Linus' tree
and what level of large bats people bring out to get things
straightened out. It doesn't seem totally obvious right now where we
are going to end (we as in the 2.4.x kernels in general).

On the other hand I wouldn't take that Byte article too serious; his
'scientific' conclusions seems to be based on how much the mp3 player
skips when loading large files into an editor.

Cheers,
Jes



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Jurriaan on Alpha writes...

> So what is the current status? Is there anything fundamental relying on
> python, or is it safe to upt-get update again?

We still don't know the extent of the problem and until known working
binutils/gcc/glibc are uploaded I think you should hold off. I'm hoping the
patch that Alan Modra posted earlier is the answer. I'm rebuilding the
toolchain now.

Stay tuned...

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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Hello All

does someone knows something about 
the HP A2089-66530 Graphic & Audio Card ?
is there a doc somewhere ?
is it supported by PA-Linux ?
does someone has such card ?

Regards
Jean-Yves
jean-yves.guillevic@wanadoo.fr




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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] Bug in flush_dcache_page?
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> 
> Aha.  A couple of things from talking to various VM/VFS people...
> 1. page->mapping is guaranteed to exist for pages in the page cache --
>    this is how they're located.
> 2. If a page is simultaneously mapped in both user and kernel space, and
>    user space touches it, either it leaves the page cache or it was mapped
>    shared.
> 

Why would a user touch cause the page to leave the cache? 
(Maybe I'm not reading enough into it...)

The shared case I can see.

> flush_dcache_page is only called on pages in the page cache, so we can
> assume that page->mapping exists, and we don't need to flush any user
> mappings of this page.
> 
> 	if (!page->mapping->i_mmap & !page->mapping->i_mmap_shared) {
> 		set_bit(PG_dcache_dirty, &page->flags);
> 	} else {
> 		struct vm_area_struct *vma = page->mapping->i_mmap_shared;
> 		if (vma) {
> 			flush_user_page(vma->vm_mm, vma->vm_start + page->index);
> 		}
> 		flush_kernel_dcache_page(page_address(page));
> 	}
> 

Any particular reason for the bitwise and?

c.




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Subject: Re: [parisc-linux] Bug in flush_dcache_page?
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On Wed, Oct 31, 2001 at 08:56:06PM -0500, Carlos O'Donell Jr. wrote:
> > 2. If a page is simultaneously mapped in both user and kernel space, and
> >    user space touches it, either it leaves the page cache or it was mapped
> >    shared.
> 
> Why would a user touch cause the page to leave the cache? 
> (Maybe I'm not reading enough into it...)
> 
> The shared case I can see.

I meant `dirty' rather than `touch'.  If the page is mapped shared, writes
to it are visible to all users.  If it's mapped private, a write does
a copy-on-write.  The page leaves the page cache at this point because its
contents are no longer valuable to anyone except the process.

> > 	if (!page->mapping->i_mmap & !page->mapping->i_mmap_shared) {
> > 		set_bit(PG_dcache_dirty, &page->flags);
> > 	} else {
>
> Any particular reason for the bitwise and?

It's not a sequence point.  So it doesn't have to be test, branch, test,
branch; it can be test, test, branch.  I'm not sure how the compiler does
on this, to be honest.  It's a microoptimisation that's almost certainly
not worth making.

-- 
Revolutions do not require corporate support.



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Subject: [parisc-linux] More Install on C110: Kernel doesn't load...
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OK, I did a quick and dirty port of palo to MacOS X/Darwin and was able 
to run it on the ISO image and modify the boot blocks correctly.

I've got it to boot from the CD, turned out I was burning the CD wrong, 
needed to burn with Track-At-Once with Close CD, rather than simply 
Disc-At-Once in EasyCD Creator on Win2k.

However, when attempting to boot the kernel, I get this:

Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 160694 mediaptr 0x1000
Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8

Error: read from boot device failed (status = -4)
byteio_read: seekread() returned -1 expected 2048
Error:  segment 0 read() failed

Any thoughts?

Thanks,
Dan




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>OK, I did a quick and dirty port of palo to MacOS X/Darwin and was =
able=20
>to run it on the ISO image and modify the boot blocks correctly.
>
>I've got it to boot from the CD, turned out I was burning the CD =
wrong,=20
>needed to burn with Track-At-Once with Close CD, rather than simply=20
>Disc-At-Once in EasyCD Creator on Win2k.
>
>However, when attempting to boot the kernel, I get this:
>
>Entry 00100000 first 00100000 n 4
>Segment 0 load 00100000 size 160694 mediaptr 0x1000
>Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
>Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
>Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
>
>Error: read from boot device failed (status =3D -4)
>byteio_read: seekread() returned -1 expected 2048
>Error:  segment 0 read() failed
>
>Any thoughts?
>
Yeah, something's wrong :-)

It looks like palo is trying to read a file and doesn't get the 2048 bytes
it wanted (and expected). I'm not sure if this is the phase where palo
reads the kernel. If it is, double check if it is trying to read the =
correct
file.

This may indicate that either your CD is still bad, or that your hardware
in general is flaky (bad cable, bad termination, bad cdrom-drive).

Do you have another linux system and can you check if the CD is
readable on that system? A simple 'cat /dev/cdrom > /dev/null' should
mention any errors.

Good luck,
Jurriaan




From - Thu Nov 08 21:20:10 2018
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X-Mozilla-Keys:                                                                                 
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From: "kenneth westelinck" <kennywest1@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Compiling Mozilla on parisc-linux fails
Date: Fri, 2 Nov 2001 12:17:07 +0100
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This is a multi-part message in MIME format.

------=_NextPart_000_0015_01C16398.4A7F4C80
Content-Type: text/plain;
	charset="iso-8859-1"
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Hi all,

I haven't touched my 712/60 for a week now, and today I've decided to
compile Mozilla. I can already hear the real gurus shouting: "why not use
lynx?". Actually I did use lynx, but I didn't like it very much.
Before I start telling my story, you should know I'm not very much of a
programmer. Sure I know how to write a very basic C program (like "hello
world"), but there it ends.

So I downloaded the tar.gz archive, unpacked it and ran "./configure". My
workstation appeared to pass all tests and I was ready to run a "make". In
the first attached file (make.log.std) you can find the output of this
command. Investigating the cause of the error brought me to the file
"prcpucfg.h". "Unknown CPU architecture" the error says. Indeed, while
browsing through that file I couldn't find anything near a "PARISC"
architecture.

I tried another approach and ran
"./configure --build=hppa-hpux --host=hppa-hpux". Again I passed the test so
I ran "make". You can find the output of this command in the second file
(make.log.hpux). He doesn't seem to find the "model.h" file, which makes
sense. I assume the "model.h" file can only be found on a real HP-UNIX.

"protypes.h" reads:
...
/* model.h on HP-UX defines int8, int16, and int32. */
#ifdef HPUX
#include <model.h>
#endif
...

Searching the web brought me to the following URL:
http://www.informatik.uni-frankfurt.de/doc/man/hpux/model.4.html . This page
describes the contents of the header-file:
...
      model.h also contains typedefs for several predefined types to enhance
      portability of certain types of code and files.

           int8, u_int8             Signed and unsigned 8-bit integers.
           int16, u_int16           Signed and unsigned 16-bit integers.
           int32, u_int32           Signed and unsigned 32-bit integers.
           machptr, u_machptr       Signed and unsigned integers large
                                    enough to hold a pointer.
...

So I need a bit of advice. Is configuring with
"--build=hppa-hpux --host=hppa-hpux" the right way to go? If so, can someone
provide me with the model header file or the correct typedefs?

Any thoughts on this are very much appreciated ;-)


regards,

Kenneth

------=_NextPart_000_0015_01C16398.4A7F4C80
Content-Type: application/octet-stream;
	name="make.log.hpux"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="make.log.hpux"

make[1]: Entering directory `/usr/local/src/mozilla/config'=0A=
nsinstall.c=0A=
gcc -o nsinstall.o -c -DOSTYPE=3D\"Linux2.4\" -DOSARCH=3D\"Linux\" =
-DMOZ_REFLOW_PERF -DMOZ_REFLOW_PERF_DSP -DOJI -D_BSD_SOURCE   =
-I../dist/include -I../dist/include =
-I/usr/local/src/mozilla/dist/include/nspr      -I/usr/X11R6/include   =
-fPIC -I/usr/X11R6/include -Wall -W -Wno-unused -Wpointer-arith =
-Wcast-align -pedantic -Wno-long-long -DHPUX11 -Dhpux -pipe =
-fshort-wchar  -DDEBUG -DDEBUG_root -DTRACING -g -I/usr/X11R6/include =
-include ../config-defs.h -DMOZILLA_CLIENT -Wp,-MD,.deps/nsinstall.pp =
nsinstall.c=0A=
pathsub.c=0A=
gcc -o pathsub.o -c -DOSTYPE=3D\"Linux2.4\" -DOSARCH=3D\"Linux\" =
-DMOZ_REFLOW_PERF -DMOZ_REFLOW_PERF_DSP -DOJI -D_BSD_SOURCE   =
-I../dist/include -I../dist/include =
-I/usr/local/src/mozilla/dist/include/nspr      -I/usr/X11R6/include   =
-fPIC -I/usr/X11R6/include -Wall -W -Wno-unused -Wpointer-arith =
-Wcast-align -pedantic -Wno-long-long -DHPUX11 -Dhpux -pipe =
-fshort-wchar  -DDEBUG -DDEBUG_root -DTRACING -g -I/usr/X11R6/include =
-include ../config-defs.h -DMOZILLA_CLIENT -Wp,-MD,.deps/pathsub.pp =
pathsub.c=0A=
gcc -o nsinstall -I/usr/X11R6/include -Wall -W -Wno-unused =
-Wpointer-arith -Wcast-align -pedantic -Wno-long-long -DHPUX11 -Dhpux =
-pipe -fshort-wchar  -DDEBUG -DDEBUG_root -DTRACING -g nsinstall.o =
pathsub.o  -L../dist/bin -L../dist/lib  -ldl -lm   =0A=
/usr/bin/perl -I. ./bdate.pl build_number =0A=
../config/nsinstall -R -m 444 nsBuildID.h ../dist/include=0A=
/usr/bin/perl -I../config ../config/build-list.pl =
../dist/include/.headerlist nsBuildID.h=0A=
rm -f ../config/final-link-comps ../config/final-link-libs =
../config/final-link-comp-names=0A=
make[1]: Leaving directory `/usr/local/src/mozilla/config'=0A=
make[1]: Entering directory `/usr/local/src/mozilla/build'=0A=
make[2]: Entering directory `/usr/local/src/mozilla/build/unix'=0A=
chmod 755 mozilla-config=0A=
../../config/nsinstall -R -m 755 mozilla-config ../../dist/bin=0A=
make[2]: Leaving directory `/usr/local/src/mozilla/build/unix'=0A=
make[1]: Leaving directory `/usr/local/src/mozilla/build'=0A=
make[1]: Entering directory `/usr/local/src/mozilla/nsprpub'=0A=
cd config; make export=0A=
make[2]: Entering directory `/usr/local/src/mozilla/nsprpub/config'=0A=
rm -f /usr/local/src/mozilla/dist/bin/nspr-config=0A=
make[2]: Leaving directory `/usr/local/src/mozilla/nsprpub/config'=0A=
cd pr; make export=0A=
make[2]: Entering directory `/usr/local/src/mozilla/nsprpub/pr'=0A=
cd include; make export=0A=
make[3]: Entering directory `/usr/local/src/mozilla/nsprpub/pr/include'=0A=
cd md; make export=0A=
make[4]: Entering directory =
`/usr/local/src/mozilla/nsprpub/pr/include/md'=0A=
../../../config/./nsinstall -R -m 444 ./_hpux32.cfg =
/usr/local/src/mozilla/dist/include/nspr=0A=
mv -f /usr/local/src/mozilla/dist/include/nspr/_hpux32.cfg =
/usr/local/src/mozilla/dist/include/nspr/prcpucfg.h=0A=
make[4]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr/include/md'=0A=
cd private; make export=0A=
make[4]: Entering directory =
`/usr/local/src/mozilla/nsprpub/pr/include/private'=0A=
../../../config/./nsinstall -R -m 444 ./pprio.h ./pprthred.h ./prpriv.h =
/usr/local/src/mozilla/dist/include/nspr/private=0A=
make[4]: Leaving directory =
`/usr/local/src/mozilla/nsprpub/pr/include/private'=0A=
cd obsolete; make export=0A=
make[4]: Entering directory =
`/usr/local/src/mozilla/nsprpub/pr/include/obsolete'=0A=
../../../config/./nsinstall -R -m 444 ./pralarm.h ./probslet.h =
./protypes.h ./prsem.h /usr/local/src/mozilla/dist/include/nspr/obsolete=0A=
make[4]: Leaving directory =
`/usr/local/src/mozilla/nsprpub/pr/include/obsolete'=0A=
../../config/./nsinstall -R -m 444 ./nspr.h ./pratom.h ./prbit.h =
./prclist.h ./prcmon.h ./prcountr.h ./prcvar.h ./prdtoa.h ./prenv.h =
./prerr.h ./prerror.h ./prinet.h ./prinit.h ./prinrval.h ./prio.h =
./pripcsem.h ./prlink.h ./prlock.h ./prlog.h ./prlong.h ./prmem.h =
./prmon.h ./prmwait.h ./prnetdb.h ./prolock.h ./prpdce.h ./prprf.h =
./prproces.h ./prrng.h ./prrwlock.h ./prshm.h ./prshma.h ./prsystem.h =
./prthread.h ./prtime.h ./prtpool.h ./prtrace.h ./prtypes.h ./prvrsion.h =
./prwin16.h /usr/local/src/mozilla/dist/include/nspr=0A=
make[3]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr/include'=0A=
cd src; make export=0A=
make[3]: Entering directory `/usr/local/src/mozilla/nsprpub/pr/src'=0A=
cd io; make export=0A=
make[4]: Entering directory `/usr/local/src/mozilla/nsprpub/pr/src/io'=0A=
gcc -o prfdcach.o -c    -DHPUX11 -Dhpux -g -fPIC  -UNDEBUG  -DDEBUG=3D1 =
-DDEBUG_root=3D1 -DXP_UNIX=3D1 -DHPUX=3D1 -D_HPUX_SOURCE=3D1 -Dhppa=3D1 =
-DHAVE_LCHOWN=3D1 -DHAVE_STRERROR=3D1 -D_POSIX_C_SOURCE=3D199506L =
-D_PR_HAVE_THREADSAFE_GETHOST=3D1  -DFORCE_PR_LOG -D_PR_PTHREADS =
-UHAVE_CVAR_BUILT_ON_SEM -D_NSPR_BUILD_ =
-I/usr/local/src/mozilla/dist/include/nspr -I../../../pr/include =
-I../../../pr/include/private  prfdcach.c=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:482,=0A=
                 from =
/usr/local/src/mozilla/dist/include/nspr/pratom.h:43,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:38,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:88:19: =
model.h: No such file or directory=0A=
In file included from ../../../pr/include/md/prosdep.h:143,=0A=
                 from ../../../pr/include/private/primpl.h:75,=0A=
                 from prfdcach.c:35:=0A=
../../../pr/include/md/_unixos.h:600:2: #error "I don't know yet"=0A=
In file included from ../../../pr/include/md/prosdep.h:143,=0A=
                 from ../../../pr/include/private/primpl.h:75,=0A=
                 from prfdcach.c:35:=0A=
../../../pr/include/md/_unixos.h:603: parse error before "_MDStat64"=0A=
../../../pr/include/md/_unixos.h:608: parse error before "_MDStat64"=0A=
../../../pr/include/md/_unixos.h:610: parse error before '*' token=0A=
../../../pr/include/md/_unixos.h:610: parse error before "_MDOff64_t"=0A=
../../../pr/include/md/_unixos.h:610: `_MDOff64_t' declared as function =
returning a function=0A=
../../../pr/include/md/_unixos.h:620: parse error before "_MD_Lseek64"=0A=
../../../pr/include/md/_unixos.h:620: warning: no semicolon at end of =
struct or union=0A=
In file included from ../../../pr/include/md/prosdep.h:158,=0A=
                 from ../../../pr/include/private/primpl.h:75,=0A=
                 from prfdcach.c:35:=0A=
../../../pr/include/md/_pth.h:222:23: sys/sched.h: No such file or =
directory=0A=
make[4]: *** [prfdcach.o] Error 1=0A=
make[4]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr/src/io'=0A=
make[3]: *** [export] Error 2=0A=
make[3]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr/src'=0A=
make[2]: *** [export] Error 2=0A=
make[2]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr'=0A=
make[1]: *** [export] Error 2=0A=
make[1]: Leaving directory `/usr/local/src/mozilla/nsprpub'=0A=
make: *** [export] Error 2=0A=

------=_NextPart_000_0015_01C16398.4A7F4C80
Content-Type: application/octet-stream;
	name="make.log.std"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="make.log.std"

make[1]: Entering directory `/usr/local/src/mozilla/config'=0A=
nsinstall.c=0A=
gcc -o nsinstall.o -c -DOSTYPE=3D\"Linux2.4\" -DOSARCH=3D\"Linux\" =
-DMOZ_REFLOW_PERF -DMOZ_REFLOW_PERF_DSP -DOJI -D_BSD_SOURCE   =
-I../dist/include -I../dist/include =
-I/usr/local/src/mozilla/dist/include/nspr      -I/usr/X11R6/include   =
-fPIC -I/usr/X11R6/include -Wall -W -Wno-unused -Wpointer-arith =
-Wcast-align -pedantic -Wno-long-long -pipe -fshort-wchar  -DDEBUG =
-DDEBUG_root -DTRACING -g -I/usr/X11R6/include -include ../config-defs.h =
-DMOZILLA_CLIENT -Wp,-MD,.deps/nsinstall.pp nsinstall.c=0A=
pathsub.c=0A=
gcc -o pathsub.o -c -DOSTYPE=3D\"Linux2.4\" -DOSARCH=3D\"Linux\" =
-DMOZ_REFLOW_PERF -DMOZ_REFLOW_PERF_DSP -DOJI -D_BSD_SOURCE   =
-I../dist/include -I../dist/include =
-I/usr/local/src/mozilla/dist/include/nspr      -I/usr/X11R6/include   =
-fPIC -I/usr/X11R6/include -Wall -W -Wno-unused -Wpointer-arith =
-Wcast-align -pedantic -Wno-long-long -pipe -fshort-wchar  -DDEBUG =
-DDEBUG_root -DTRACING -g -I/usr/X11R6/include -include ../config-defs.h =
-DMOZILLA_CLIENT -Wp,-MD,.deps/pathsub.pp pathsub.c=0A=
gcc -o nsinstall -I/usr/X11R6/include -Wall -W -Wno-unused =
-Wpointer-arith -Wcast-align -pedantic -Wno-long-long -pipe =
-fshort-wchar  -DDEBUG -DDEBUG_root -DTRACING -g nsinstall.o pathsub.o  =
-L../dist/bin -L../dist/lib  -ldl -lm  -lc  =0A=
/usr/bin/perl -I. ./bdate.pl build_number =0A=
../config/nsinstall -R -m 444 nsBuildID.h ../dist/include=0A=
/usr/bin/perl -I../config ../config/build-list.pl =
../dist/include/.headerlist nsBuildID.h=0A=
rm -f ../config/final-link-comps ../config/final-link-libs =
../config/final-link-comp-names=0A=
make[1]: Leaving directory `/usr/local/src/mozilla/config'=0A=
make[1]: Entering directory `/usr/local/src/mozilla/build'=0A=
make[2]: Entering directory `/usr/local/src/mozilla/build/unix'=0A=
chmod 755 mozilla-config=0A=
../../config/nsinstall -R -m 755 mozilla-config ../../dist/bin=0A=
make[2]: Leaving directory `/usr/local/src/mozilla/build/unix'=0A=
make[1]: Leaving directory `/usr/local/src/mozilla/build'=0A=
make[1]: Entering directory `/usr/local/src/mozilla/nsprpub'=0A=
cd config; make export=0A=
make[2]: Entering directory `/usr/local/src/mozilla/nsprpub/config'=0A=
rm -f /usr/local/src/mozilla/dist/bin/nspr-config=0A=
make[2]: Leaving directory `/usr/local/src/mozilla/nsprpub/config'=0A=
cd pr; make export=0A=
make[2]: Entering directory `/usr/local/src/mozilla/nsprpub/pr'=0A=
cd include; make export=0A=
make[3]: Entering directory `/usr/local/src/mozilla/nsprpub/pr/include'=0A=
cd md; make export=0A=
make[4]: Entering directory =
`/usr/local/src/mozilla/nsprpub/pr/include/md'=0A=
../../../config/./nsinstall -R -m 444 ./_linux.cfg =
/usr/local/src/mozilla/dist/include/nspr=0A=
mv -f /usr/local/src/mozilla/dist/include/nspr/_linux.cfg =
/usr/local/src/mozilla/dist/include/nspr/prcpucfg.h=0A=
make[4]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr/include/md'=0A=
cd private; make export=0A=
make[4]: Entering directory =
`/usr/local/src/mozilla/nsprpub/pr/include/private'=0A=
../../../config/./nsinstall -R -m 444 ./pprio.h ./pprthred.h ./prpriv.h =
/usr/local/src/mozilla/dist/include/nspr/private=0A=
make[4]: Leaving directory =
`/usr/local/src/mozilla/nsprpub/pr/include/private'=0A=
cd obsolete; make export=0A=
make[4]: Entering directory =
`/usr/local/src/mozilla/nsprpub/pr/include/obsolete'=0A=
../../../config/./nsinstall -R -m 444 ./pralarm.h ./probslet.h =
./protypes.h ./prsem.h /usr/local/src/mozilla/dist/include/nspr/obsolete=0A=
make[4]: Leaving directory =
`/usr/local/src/mozilla/nsprpub/pr/include/obsolete'=0A=
../../config/./nsinstall -R -m 444 ./nspr.h ./pratom.h ./prbit.h =
./prclist.h ./prcmon.h ./prcountr.h ./prcvar.h ./prdtoa.h ./prenv.h =
./prerr.h ./prerror.h ./prinet.h ./prinit.h ./prinrval.h ./prio.h =
./pripcsem.h ./prlink.h ./prlock.h ./prlog.h ./prlong.h ./prmem.h =
./prmon.h ./prmwait.h ./prnetdb.h ./prolock.h ./prpdce.h ./prprf.h =
./prproces.h ./prrng.h ./prrwlock.h ./prshm.h ./prshma.h ./prsystem.h =
./prthread.h ./prtime.h ./prtpool.h ./prtrace.h ./prtypes.h ./prvrsion.h =
./prwin16.h /usr/local/src/mozilla/dist/include/nspr=0A=
make[3]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr/include'=0A=
cd src; make export=0A=
make[3]: Entering directory `/usr/local/src/mozilla/nsprpub/pr/src'=0A=
cd io; make export=0A=
make[4]: Entering directory `/usr/local/src/mozilla/nsprpub/pr/src/io'=0A=
gcc -o prfdcach.o -c     -ansi -Wall -pipe -g -fPIC  -UNDEBUG  =
-DDEBUG=3D1 -DDEBUG_root=3D1 -DXP_UNIX=3D1 -D_POSIX_SOURCE=3D1 =
-D_BSD_SOURCE=3D1 -D_SVID_SOURCE=3D1 -D_LARGEFILE64_SOURCE=3D1 =
-DHAVE_FCNTL_FILE_LOCKING=3D1 -DLINUX=3D1 -Dlinux=3D1 -DHAVE_LCHOWN=3D1 =
-DHAVE_STRERROR=3D1 -D_REENTRANT=3D1  -DFORCE_PR_LOG -D_PR_PTHREADS =
-UHAVE_CVAR_BUILT_ON_SEM -D_NSPR_BUILD_ =
-I/usr/local/src/mozilla/dist/include/nspr -I../../../pr/include =
-I../../../pr/include/private  prfdcach.c=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:55,=0A=
                 from =
/usr/local/src/mozilla/dist/include/nspr/pratom.h:43,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:38,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prcpucfg.h:419:2: #error =
"Unknown CPU architecture"=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/pratom.h:43,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:38,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:277:2: #error No =
suitable type for PRInt8/PRUint8=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:290:2: #error No =
suitable type for PRInt16/PRUint16=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:310:2: #error No =
suitable type for PRInt32/PRUint32=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:361:2: #error =
'sizeof(int)' not sufficient for platform use=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/pratom.h:43,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:38,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:384: parse error =
before "PROffset32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:384: warning: type =
defaults to `int' in declaration of `PROffset32'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:384: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:411: parse error =
before "PRBool"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:411: warning: type =
defaults to `int' in declaration of `PRBool'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:411: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:421: parse error =
before "PRPackedBool"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:421: warning: type =
defaults to `int' in declaration of `PRPackedBool'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:421: warning: data =
definition has no type or storage class=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:482,=0A=
                 from =
/usr/local/src/mozilla/dist/include/nspr/pratom.h:43,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:38,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:45: parse =
error before "uintn"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:45: =
warning: type defaults to `int' in declaration of `uintn'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:45: =
warning: data definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:47: parse =
error before "intn"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:47: =
warning: type defaults to `int' in declaration of `intn'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:47: =
warning: data definition has no type or storage class=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:482,=0A=
                 from =
/usr/local/src/mozilla/dist/include/nspr/pratom.h:43,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:38,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:114: parse =
error before "uint32"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:114: =
warning: type defaults to `int' in declaration of `uint32'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:114: =
warning: data definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:125: parse =
error before "uint16"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:125: =
warning: type defaults to `int' in declaration of `uint16'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:125: =
warning: data definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:133: parse =
error before "uint8"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:133: =
warning: type defaults to `int' in declaration of `uint8'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:133: =
warning: data definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:154: parse =
error before "int32"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:154: =
warning: type defaults to `int' in declaration of `int32'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:154: =
warning: data definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:168: parse =
error before "int16"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:168: =
warning: type defaults to `int' in declaration of `int16'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:168: =
warning: data definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:178: parse =
error before "int8"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:178: =
warning: type defaults to `int' in declaration of `int8'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:178: =
warning: data definition has no type or storage class=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:38,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:57: parse error before =
"PR_AtomicIncrement"=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:57: parse error before =
'*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:57: warning: type =
defaults to `int' in declaration of `PR_AtomicIncrement'=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:57: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:68: parse error before =
"PR_AtomicDecrement"=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:68: parse error before =
'*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:68: warning: type =
defaults to `int' in declaration of `PR_AtomicDecrement'=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:68: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:80: parse error before =
"PR_AtomicSet"=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:80: parse error before =
'*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:80: warning: type =
defaults to `int' in declaration of `PR_AtomicSet'=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:80: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:92: parse error before =
"PR_AtomicAdd"=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:92: parse error before =
'*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:92: warning: type =
defaults to `int' in declaration of `PR_AtomicAdd'=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:92: warning: data =
definition has no type or storage class=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:39,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:56: parse error before =
"PR_CeilingLog2"=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:56: parse error before =
"i"=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:56: warning: type =
defaults to `int' in declaration of `PR_CeilingLog2'=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:56: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:61: parse error before =
"PR_FloorLog2"=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:61: parse error before =
"i"=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:61: warning: type =
defaults to `int' in declaration of `PR_FloorLog2'=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:61: warning: data =
definition has no type or storage class=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/prmon.h:39,=0A=
                 from =
/usr/local/src/mozilla/dist/include/nspr/prcmon.h:48,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:41,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:58: parse error =
before "PRIntervalTime"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:58: warning: type =
defaults to `int' in declaration of `PRIntervalTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:58: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:105: parse error =
before "PR_IntervalNow"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:105: warning: type =
defaults to `int' in declaration of `PR_IntervalNow'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:105: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:123: parse error =
before "PR_TicksPerSecond"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:123: warning: type =
defaults to `int' in declaration of `PR_TicksPerSecond'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:123: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:142: parse error =
before "PR_SecondsToInterval"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:142: parse error =
before "seconds"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:142: warning: type =
defaults to `int' in declaration of `PR_SecondsToInterval'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:142: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:143: parse error =
before "PR_MillisecondsToInterval"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:143: parse error =
before "milli"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:143: warning: type =
defaults to `int' in declaration of `PR_MillisecondsToInterval'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:143: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:144: parse error =
before "PR_MicrosecondsToInterval"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:144: parse error =
before "micro"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:144: warning: type =
defaults to `int' in declaration of `PR_MicrosecondsToInterval'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:144: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:163: parse error =
before "PR_IntervalToSeconds"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:163: parse error =
before "ticks"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:163: warning: type =
defaults to `int' in declaration of `PR_IntervalToSeconds'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:163: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:164: parse error =
before "PR_IntervalToMilliseconds"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:164: parse error =
before "ticks"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:164: warning: type =
defaults to `int' in declaration of `PR_IntervalToMilliseconds'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:164: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:165: parse error =
before "PR_IntervalToMicroseconds"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:165: parse error =
before "ticks"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:165: warning: type =
defaults to `int' in declaration of `PR_IntervalToMicroseconds'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:165: warning: data =
definition has no type or storage class=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/prcmon.h:48,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:41,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prmon.h:92: parse error before =
"PRIntervalTime"=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:41,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prcmon.h:73: parse error before =
"PRIntervalTime"=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:42,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prcvar.h:94: parse error before =
"PRIntervalTime"=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:43,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prdtoa.h:69: parse error before =
"PRIntn"=0A=
/usr/local/src/mozilla/dist/include/nspr/prdtoa.h:82: parse error before =
"PRIntn"=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:45,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:42: parse error =
before "PRErrorCode"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:42: warning: type =
defaults to `int' in declaration of `PRErrorCode'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:42: warning: data =
definition has no type or storage class=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:45,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:54: parse error =
before "errorCode"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:66: parse error =
before "textLength"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:71: parse error =
before "PR_GetError"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:71: warning: type =
defaults to `int' in declaration of `PR_GetError'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:71: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:77: parse error =
before "PR_GetOSError"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:77: warning: type =
defaults to `int' in declaration of `PR_GetOSError'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:77: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:84: parse error =
before "PR_GetErrorTextLength"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:84: warning: type =
defaults to `int' in declaration of `PR_GetErrorTextLength'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:84: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:91: parse error =
before "PR_GetErrorText"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:91: warning: type =
defaults to `int' in declaration of `PR_GetErrorText'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:91: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:174: parse error =
before "PRLanguageCode"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:174: warning: type =
defaults to `int' in declaration of `PRLanguageCode'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:174: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:196: parse error =
before "PRErrorCode"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:196: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:198: parse error =
before '}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:226: parse error =
before "code"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:259: parse error =
before "code"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:273: parse error =
before "code"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:300: parse error =
before "PR_ErrorInstallTable"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:300: warning: type =
defaults to `int' in declaration of `PR_ErrorInstallTable'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:300: warning: data =
definition has no type or storage class=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/prinit.h:38,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:47,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prthread.h:140: parse error =
before "PRUint32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prthread.h:201: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prthread.h:214: parse error =
before "tpdIndex"=0A=
/usr/local/src/mozilla/dist/include/nspr/prthread.h:225: parse error =
before "tpdIndex"=0A=
/usr/local/src/mozilla/dist/include/nspr/prthread.h:262: parse error =
before "ticks"=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:47,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:85: parse error before =
'*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:85: warning: type =
defaults to `int' in declaration of `PRBool'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:85: `PRBool' declared =
as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:85: `PRBool' =
redeclared as different kind of symbol=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:411: previous =
declaration of `PRBool'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:95: `PR_VersionCheck' =
declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:109: parse error =
before "PRUintn"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:129: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:129: parse error =
before "argc"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:129: warning: type =
defaults to `int' in declaration of `PRIntn'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:129: `PRIntn' declared =
as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:132: parse error =
before "prmain"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:132: `PR_Initialize' =
declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:137: `PR_Initialized' =
declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:184: parse error =
before "numCPUs"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:216: field =
`initialized' declared as a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:217: parse error =
before "PRInt32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:217: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:219: parse error =
before '}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:219: warning: type =
defaults to `int' in declaration of `PRCallOnceType'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:219: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:224: parse error =
before '*' token=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/prio.h:46,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:49,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:85: parse error before =
"PRInt32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:85: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:86: warning: type =
defaults to `int' in declaration of `tp_dst_offset'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:86: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:87: warning: type =
defaults to `int' in declaration of `PRTimeParameters'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:87: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:113: parse error =
before "PRInt32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:113: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:114: warning: type =
defaults to `int' in declaration of `tm_sec'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:114: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:116: parse error =
before "tm_min"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:116: warning: type =
defaults to `int' in declaration of `tm_min'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:116: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:117: parse error =
before "tm_hour"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:117: warning: type =
defaults to `int' in declaration of `tm_hour'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:117: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:118: parse error =
before "tm_mday"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:118: warning: type =
defaults to `int' in declaration of `tm_mday'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:118: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:120: parse error =
before "tm_month"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:120: warning: type =
defaults to `int' in declaration of `tm_month'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:120: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:121: parse error =
before "tm_year"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:121: warning: type =
defaults to `int' in declaration of `tm_year'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:121: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:124: parse error =
before "tm_wday"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:124: warning: type =
defaults to `int' in declaration of `tm_wday'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:124: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:126: parse error =
before "tm_yday"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:126: warning: type =
defaults to `int' in declaration of `tm_yday'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:126: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:129: parse error =
before "tm_params"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:129: warning: type =
defaults to `int' in declaration of `tm_params'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:129: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:130: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:130: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:155: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:155: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:155: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:155: warning: type =
defaults to `int' in declaration of `PRTimeParameters'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:155: =
`PRTimeParameters' declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:155: =
`PRTimeParameters' redeclared as different kind of symbol=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:87: previous =
declaration of `PRTimeParameters'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:192: parse error =
before "PRTimeParamFn"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:200: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:200: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:215: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:222: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:222: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:222: =
`PR_LocalTimeParameters' declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:225: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:225: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:225: =
`PR_GMTParameters' declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:231: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:231: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:231: =
`PR_USPacificTimeParameters' declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:281: parse error =
before "PR_FormatTime"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:282: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:282: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:282: warning: type =
defaults to `int' in declaration of `PR_FormatTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:282: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:288: parse error =
before "PR_FormatTimeUSEnglish"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:288: parse error =
before "PRUint32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:289: warning: type =
defaults to `int' in declaration of `PR_FormatTimeUSEnglish'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:289: warning: data =
definition has no type or storage class=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:49,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:83: field `identity' =
declared as a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:150: parse error before =
"PRUint8"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:150: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:150: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:151: warning: type =
defaults to `int' in declaration of `_S6_u16'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:151: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:152: parse error before =
"_S6_u32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:152: warning: type =
defaults to `int' in declaration of `_S6_u32'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:152: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:154: parse error before =
'}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:154: warning: type =
defaults to `int' in declaration of `_S6_un'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:154: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:155: parse error before =
'}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:165: parse error before =
"PRUint16"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:165: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:165: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:171: parse error before =
'}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:171: warning: type =
defaults to `int' in declaration of `raw'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:171: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:173: parse error before =
"PRUint16"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:173: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:174: warning: type =
defaults to `int' in declaration of `port'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:174: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:175: parse error before =
"ip"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:175: warning: type =
defaults to `int' in declaration of `ip'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:175: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:181: parse error before =
'}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:181: warning: type =
defaults to `int' in declaration of `inet'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:181: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:183: parse error before =
"PRUint16"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:183: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:184: warning: type =
defaults to `int' in declaration of `port'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:184: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:185: parse error before =
"flowinfo"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:185: warning: type =
defaults to `int' in declaration of `flowinfo'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:185: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:186: conflicting types =
for `ip'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:175: previous =
declaration of `ip'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:187: parse error before =
"scope_id"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:187: warning: type =
defaults to `int' in declaration of `scope_id'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:187: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:188: warning: type =
defaults to `int' in declaration of `ipv6'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:188: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:191: parse error before =
"PRUint16"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:191: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:193: parse error before =
'}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:193: warning: type =
defaults to `int' in declaration of `local'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:193: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:195: parse error before =
'}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:231: field `polarity' =
declared as a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:232: parse error before =
"PRIntervalTime"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:232: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:233: warning: type =
defaults to `int' in declaration of `PRLinger'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:233: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:236: field `mcaddr' has =
incomplete type=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:237: field `ifaddr' has =
incomplete type=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:238: confused by earlier =
errors, bailing out=0A=
{standard input}: Assembler messages:=0A=
{standard input}:593: Warning: end of file in string; inserted '"'=0A=
{standard input}:613: Warning: .stabs: missing comma=0A=
make[4]: *** [prfdcach.o] Error 1=0A=
make[4]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr/src/io'=0A=
make[3]: *** [export] Error 2=0A=
make[3]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr/src'=0A=
make[2]: *** [export] Error 2=0A=
make[2]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr'=0A=
make[1]: *** [export] Error 2=0A=
make[1]: Leaving directory `/usr/local/src/mozilla/nsprpub'=0A=
make: *** [export] Error 2=0A=

------=_NextPart_000_0015_01C16398.4A7F4C80--



From - Thu Nov 08 21:20:10 2018
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Albert Strasheim <fullung@ilink.nis.za>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Compiling Mozilla on parisc-linux fails
Date: Fri, 2 Nov 2001 14:09:41 +0200
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Cc: parisc-linux@lists.parisc-linux.org
To: kenneth westelinck <kennywest1@hotmail.com>
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Hello,

On Fri, 02 Nov 2001, kenneth westelinck wrote:

<snip>

> "--build=hppa-hpux --host=hppa-hpux" the right way to go? If so, can someone
> provide me with the model header file or the correct typedefs?

Unless I am very much mistaken, you probably don't want this. Even
though this is a HP system, it is running the Linux operating system,
with its associated header files.

AFAIK, we're still missing a kernel-headers package for hppa; someone
suggested simply install the sparc one. Don't know how well that works.

Regards,

Albert

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From: "Kaj-Michael Lang" <milang@tal.org>
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Subject: Re: [parisc-linux] Compiling Mozilla on parisc-linux fails
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> "./configure --build=hppa-hpux --host=hppa-hpux". Again I passed the test
so

Try:

./configure --build=hppa-linux --host=hppa-linux

Works with a bunch of software that won't recogonice "parisc"

--
Kaj-Michael Lang , milang@tal.org






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= >Entry 00100000 first 00100000 n 4
= >Segment 0 load 00100000 size 160694 mediaptr 0x1000
= >Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
= >Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
= >Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
= >
= >Error: read from boot device failed (status = -4)
= >byteio_read: seekread() returned -1 expected 2048
= >Error:  segment 0 read() failed

palo has read thee ELF header by then, but fails to read the first
program segment (0).  It's unusual for things to die here.  The
firmware docs say error -4 is "unrecoverable hardware error".
Perhaps the ISO image got truncated or is shorter than it should be?

	-P

	-P



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The ISO image burned is 137,854,976 bytes in length...  at some point 
here I'll cat /dev/cdrom > /dev/null to check the media and make sure 
there's not a problem, but I'd be inclined to think its something with 
the format on CD...  Here's the file I fed into my port of palo:

-c0/vmlinux root=/dev/ram initrd=0/ramdisk
-k/Volumes/palinux-0.9.1/debian/dists/sid/main/disks-
hppa/current/32/vmlinux
-b/Volumes/palinux-0.9.1/iplboot
-r/Volumes/palinux-0.9.1/debian/dists/sid/main/disks-
hppa/current/root.bin
-C./palinux-0.9.2.iso

When mounted, the 0.9.2 ISO's name is palinux-0.9.1, because it was 
mastered like that?  Anyway, I assume the kernels on the ISO image are 
OK to use?  I can't of course compile them myself because I don't have 
an hppa cross compiler (no x86 box).

Dan

On Friday, November 2, 2001, at 10:18 AM, Paul Bame wrote:

> = >Entry 00100000 first 00100000 n 4
> = >Segment 0 load 00100000 size 160694 mediaptr 0x1000
> = >Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
> = >Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
> = >Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
> = >
> = >Error: read from boot device failed (status = -4)
> = >byteio_read: seekread() returned -1 expected 2048
> = >Error:  segment 0 read() failed
>
> palo has read thee ELF header by then, but fails to read the first
> program segment (0).  It's unusual for things to die here.  The
> firmware docs say error -4 is "unrecoverable hardware error".
> Perhaps the ISO image got truncated or is shorter than it should be?
>
> 	-P
>
> 	-P




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I was under the impression, from reading the READMEs on the CD that I'd 
need to make it bootable, that the downloaded ISO isn't bootable in the 
first place...  This is probably wrong now that you bring it up :)  But 
I haven't tried to burn a CD from the virgin downloaded ISO that wasn't 
changed by my palo.  I'll try that.

Dan

On Friday, November 2, 2001, at 11:05 AM, Paul Bame wrote:

>
> I'm missing some information -- something doesn't feel right.
>
> Your downloaded ISO didn't work at first but now you've discovered
> the magic for how to burn CDs.  I would try the 0.92
> downloaded ISO again in that case.  If it fails, the ISO is probably
> corrupt, and neither it, nor any magic you might do upon it by porting
> palo yourself, is a reliable repair.
>
> Basically if you can burn your home-grown ISO and get as far as you
> have, you should be able to burn the downloaded one too the same
> way.  Check the md5 signature to see if the download is OK.
>
> Why run palo unless you need a different kernel than is on the 
> downloaded
> ISO?
>
> = The ISO image burned is 137,854,976 bytes in length...  at some point
> = here I'll cat /dev/cdrom > /dev/null to check the media and make sure
> = there's not a problem, but I'd be inclined to think its something with
> = the format on CD...  Here's the file I fed into my port of palo:
> =
> = -c0/vmlinux root=/dev/ram initrd=0/ramdisk
> = -k/Volumes/palinux-0.9.1/debian/dists/sid/main/disks-
> = hppa/current/32/vmlinux
> = -b/Volumes/palinux-0.9.1/iplboot
> = -r/Volumes/palinux-0.9.1/debian/dists/sid/main/disks-
> = hppa/current/root.bin
> = -C./palinux-0.9.2.iso
> =
> = When mounted, the 0.9.2 ISO's name is palinux-0.9.1, because it was
> = mastered like that?  Anyway, I assume the kernels on the ISO image are
> = OK to use?  I can't of course compile them myself because I don't have
> = an hppa cross compiler (no x86 box).
> =
> = Dan
> =
> = On Friday, November 2, 2001, at 10:18 AM, Paul Bame wrote:
> =
> = > = >Entry 00100000 first 00100000 n 4
> = > = >Segment 0 load 00100000 size 160694 mediaptr 0x1000
> = > = >Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
> = > = >Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
> = > = >Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
> = > = >
> = > = >Error: read from boot device failed (status = -4)
> = > = >byteio_read: seekread() returned -1 expected 2048
> = > = >Error:  segment 0 read() failed
> = >
> = > palo has read thee ELF header by then, but fails to read the first
> = > program segment (0).  It's unusual for things to die here.  The
> = > firmware docs say error -4 is "unrecoverable hardware error".
> = > Perhaps the ISO image got truncated or is shorter than it should be?
> = >
> = > 	-P
> = >
> = > 	-P
> =
> =
> = _______________________________________________
> = parisc-linux mailing list
> = parisc-linux@lists.parisc-linux.org
> = http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> =




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Subject: [parisc-linux] Irritating console message in 0.9.2 iso
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I have installed 0.9.2 on my two 712's (a /60 & a /80) with no problems
(except learning about Debian).
I am however bothered by a message which is displayed on the console at
irregular (I think) intervals - sort of in bursts, then stops for a bit.
The message makes it impossible to use dselect to proceed with the rest of
the installation - the menu items in dselect get overwritten and it's not
possible to determine what I have selected etc.

The message is:
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
skb: pf=2(unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F-0x0000 T=16

Now that is not cut and paste but the words are correct.

Hope someone has an answer!

Regards, Herb




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On Fri, Nov 02, 2001 at 12:33:42PM -0500, Herb Radford wrote:
> I have installed 0.9.2 on my two 712's (a /60 & a /80) with no problems
> (except learning about Debian).
> I am however bothered by a message which is displayed on the console at
> irregular (I think) intervals - sort of in bursts, then stops for a bit.
> The message makes it impossible to use dselect to proceed with the rest of
> the installation - the menu items in dselect get overwritten and it's not
> possible to determine what I have selected etc.
> 
> The message is:
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
> skb: pf=2(unowned) dev=lo len=328
> PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F-0x0000 T=16
> 
> Now that is not cut and paste but the words are correct.
> 
> Hope someone has an answer!

Just added

> dhcp-client is started from init scripts, when it should only be invoked
> via ifup and ifdown.  The result is that any manual network
> configuration may be overwritten, and you may see messages like
> "ip_local_deliver: bad loopback skb..." on the console.  Fix with
> "rm /etc/rc?.d/*dhcp-client".

to the errata, which I believe will solve your problem.

Richard




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Subject: Re: [parisc-linux] More Install on C110: Kernel doesn't load...
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Daniel Williams wrote:
> Error: read from boot device failed (status = -4)
> byteio_read: seekread() returned -1 expected 2048
> Error:  segment 0 read() failed
> 
> Any thoughts?

When burning the IA64 boot CD, i was warned to use the 2x (vs 4x) burn
speed. This sounded like hogwash to me but the person was told the disk
burned at 4x may not work well with older/slower CD drives. If someone
could confirm this I'd appreciate it...anyway, the ia64 CD worked fine.

grant



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From: "Griffin, Aubrey, BMCIO" <aubreygriffin@att.com>
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Subject: RE: [parisc-linux] Irritating console message in 0.9.2 iso
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I wiil add that this is a effective fix although quick and dirty. 

But first, you must stop the message by shutting down the dhcp client. 

Running "/etc/init.d/dhcp-client stop" as root will stop the messages from
displaying on the console immediately. 

Then, you can remove the dhcp-client startup scripts if you like.

An alternative solution to this problem is to change line 17 in
/etc/init.d/dhcp-client from "grep -q" to "grep -v -q" to prevent the dhcp
client from starting when the machine is rebooted.

Aubrey

-----Original Message-----
From: Richard Hirst [mailto:rhirst@linuxcare.com]
Sent: Friday, November 02, 2001 1:19 PM
To: Herb Radford
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Irritating console message in 0.9.2 iso


On Fri, Nov 02, 2001 at 12:33:42PM -0500, Herb Radford wrote:
> I have installed 0.9.2 on my two 712's (a /60 & a /80) with no problems
> (except learning about Debian).
> I am however bothered by a message which is displayed on the console at
> irregular (I think) intervals - sort of in bursts, then stops for a bit.
> The message makes it impossible to use dselect to proceed with the rest of
> the installation - the menu items in dselect get overwritten and it's not
> possible to determine what I have selected etc.
> 
> The message is:
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
> skb: pf=2(unowned) dev=lo len=328
> PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F-0x0000 T=16
> 
> Now that is not cut and paste but the words are correct.
> 
> Hope someone has an answer!

Just added

> dhcp-client is started from init scripts, when it should only be invoked
> via ifup and ifdown.  The result is that any manual network
> configuration may be overwritten, and you may see messages like
> "ip_local_deliver: bad loopback skb..." on the console.  Fix with
> "rm /etc/rc?.d/*dhcp-client".

to the errata, which I believe will solve your problem.

Richard


_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



From - Thu Nov 08 21:20:11 2018
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Subject: [parisc-linux] EISA interrupts
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To get ISA/EISA interrupts working, I think we're going to need to
program the 82357 ISP chip properly.  You don't need any knowledge of
the Mongoose/Wax chip to do this; all you need to know is that the byte
read from 0xfc01f000 in eisa_irq is the byte generated by the 82357.
Any volunteers?  It should be straightforward, but I don't have time to
do it myself.  The data sheet's linked to from the p-l.org documentation
page.

-- 
Revolutions do not require corporate support.



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On 2001.11.03 08:24 Matthew Wilcox wrote:
> 
> To get ISA/EISA interrupts working, I think we're going to need to
> program the 82357 ISP chip properly.  You don't need any knowledge of
> the Mongoose/Wax chip to do this; all you need to know is that the byte
> read from 0xfc01f000 in eisa_irq is the byte generated by the 82357.
> Any volunteers?  It should be straightforward, but I don't have time to
> do it myself.  The data sheet's linked to from the p-l.org documentation
> page.
I'am on it since aboput a week,
I might have a few questions soon though.


/Daniel
--



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Subject: [parisc-linux] Thanks and more questions
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Xref: news.gmane.org gmane.linux.ports.parisc:12881

Thanks to Richard Hirst, Nicholas Charles and Aubrey Griffin for the
fix(es) for the irritating console message.
More questions:
I have a C110 and a C200 sitting here and upon boot attempts (from the
0.9.2 CD), I don't get too far. 
a) On the C200 I have firmware version 5.0 and a A4553A graphics card.
I get the message:
Set default PSW W bit to 0

and nothing more! The heartbeat is on solid (not flashing) but no more
messages.

b) The C110 has an A4070A (I think) graphics card.
On the C110, things are much the same (except for a confused message about
the firmware (C110 firmware is 1.5 - I think) but the system resets after
the PSW message.

On both machines I installed narrow SCSI drives to avoid any funnies with
wide drives.

You guys are VERY quick, but I don't need that fast a response :)

Regards, Herb




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On 2001.11.03 08:24 Matthew Wilcox wrote:
> 
> To get ISA/EISA interrupts working, I think we're going to need to
> program the 82357 ISP chip properly.  

Here is the first version of my patch. It gives me interrupts to my ISA
NE2000 clone.

In order to use an ISA card you will have to specify the IRQ as edge triggerd 
on the kernel command line options  eisa_irq_edge. 
Use eisa_irq_edge=9,10 to set IRQ 9 and 10 to edge mode.

The trig-mode of the irq lines could be read from the EEPROM on the system
board but I have not yet fully understood its format, so I solved it with a 
commandline option for now.

/Daniel

-- 

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--AWniW0JNca5xppdA--



From - Thu Nov 08 21:20:11 2018
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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: [parisc-linux] Old but open problem of Xfree on 2.4.9-pa75
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Hello !

Starting current Xfree-4.1.0.1 the system reports the already described

FBIOPUT_VSCREENINFO: Invalid argument

(a message not written into the log file !!)

This message is written after 

(**) FBDev(0): Using "Shadow Frambuffer"

The resulting reaction is the fatal error with an abort.


What is the reason for that ? 
By the way, the server also reports not having
the PCI stuff, which is perhaps not compiled in my kernel, but that
seems not
to be the problem here.

How can this can be solved. My config uses 8 bbp, the STI console driver
inside
the kernel also reports 1280x1024-8 ! So this should run ....

Please help

Christoph P.


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Subject: [parisc-linux] hppa binutils/glibc updates
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Xref: news.gmane.org gmane.linux.ports.parisc:12884

Some good news, I hope....

With latest patches from Alan Modra, things seem to be looking better.
Here's what I've tried:

In a chroot built with debootstrap plus build-essential:
- Rebuild binutils from sourceware cvs
- Using new binutils, rebuild glibc (2.2.4-5) with am's latest patch

With these bits installed, the following were tested:
- build and install wget (just a simple sanity test)
- install and run libgtk1.2 and gkrellm
- recompile and run python1.5 and apache

all these seem to be ok now. Before recompiling, things like python will
die with a SIGILL

I've made a list of all the packages that got uploaded between around
Oct 15 till now. All these need to be recompiled and binary-NMU's need to
be made. James/LaMont/Bdale/myself/etc can do these fairly easily with
sbuild after new binutils and glibc bits are uploaded. Hopefully we can also
restart the buildd after that.

Chris/Ben: can you let us know when we can expect new binutils/glibc?
I'll forward the glibc patch to Ben separately.

If you can think of anything else that we should try to make sure
everything works, please let us know.

fingers crossed,
randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Hello,

Has gcc been fixed to produce "working" binaries for the 720 (and
perhaps other machines), with the aligned stuff being fixed.

Thanks for your hard work! :-)

Regards,

Albert



From - Thu Nov 08 21:20:12 2018
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> Has gcc been fixed to produce "working" binaries for the 720 (and
> perhaps other machines), with the aligned stuff being fixed.
> 
> Thanks for your hard work! :-)

Looks like the patch is in, but the new gcc hasn't yet been built
because of the toolchain issues. Once the official binutils is in the 
archive we can build the new gcc and see if that works....

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Hello,

On Sun, 04 Nov 2001, Randolph Chung wrote:

> > Has gcc been fixed to produce "working" binaries for the 720 (and
> > perhaps other machines), with the aligned stuff being fixed.
> > 
> > Thanks for your hard work! :-)
> 
> Looks like the patch is in, but the new gcc hasn't yet been built
> because of the toolchain issues. Once the official binutils is in the 
> archive we can build the new gcc and see if that works....

That's great to hear! Will someone be creating new xc tarball as well. 
or does this happen automagically? I need it to compile some test
binaries, as I assume it's going to take many weeks for all the Debian
packages to get recompiled? Or will this be unnessary in most cases?

Regards,

Albert



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Subject: Re: [parisc-linux] hppa binutils/glibc updates
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	Randolph Chung <randolph@tausq.org>
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On Sun, Nov 04, 2001 at 06:11:25PM +0200, Albert Strasheim wrote:
> That's great to hear! Will someone be creating new xc tarball as well. 
> or does this happen automagically? I need it to compile some test
> binaries, as I assume it's going to take many weeks for all the Debian
> packages to get recompiled? Or will this be unnessary in most cases?

i'm pretty sure the only thing which needs to get recompiled will be glibc.

-- 
Revolutions do not require corporate support.



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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Compiling Mozilla on parisc-linux fails
Date: Sun, 4 Nov 2001 19:32:27 +0100
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On Fri, Nov 02, 2001 at 12:17:07PM +0100, kenneth westelinck wrote:
> So I downloaded the tar.gz archive, unpacked it and ran "./configure". My
> workstation appeared to pass all tests and I was ready to run a "make". In
> the first attached file (make.log.std) you can find the output of this
> command. Investigating the cause of the error brought me to the file
> "prcpucfg.h". "Unknown CPU architecture" the error says. Indeed, while
> browsing through that file I couldn't find anything near a "PARISC"
> architecture.

get the debian source package it contains some my first set of necessary
patches to compile mozilla under Linux/parisc. You will probably face
some binutils/gcc/glibc problems, which might even will give you
compile/link problems, but it's a better start than the plain tar.gz
file.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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Subject: Re: [parisc-linux] Compiling Mozilla on parisc-linux fails
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Nope, same error (see the attached file). Any other ideas?

----- Original Message -----
From: "Kaj-Michael Lang" <milang@tal.org>
To: "kenneth westelinck" <kennywest1@hotmail.com>;
<parisc-linux@parisc-linux.org>
Sent: Friday, November 02, 2001 3:18 PM
Subject: Re: [parisc-linux] Compiling Mozilla on parisc-linux fails


> > "./configure --build=hppa-hpux --host=hppa-hpux". Again I passed the
test
> so
>
> Try:
>
> ./configure --build=hppa-linux --host=hppa-linux
>
> Works with a bunch of software that won't recogonice "parisc"
>
> --
> Kaj-Michael Lang , milang@tal.org
>
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>

------=_NextPart_000_0017_01C16569.61E3B910
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	name="make.log.hppa-linux"
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	filename="make.log.hppa-linux"

make[1]: Entering directory `/usr/local/src/mozilla/config'=0A=
nsinstall.c=0A=
gcc -o nsinstall.o -c -DOSTYPE=3D\"Linux2.4\" -DOSARCH=3D\"Linux\" =
-DMOZ_REFLOW_PERF -DMOZ_REFLOW_PERF_DSP -DOJI -D_BSD_SOURCE   =
-I../dist/include -I../dist/include =
-I/usr/local/src/mozilla/dist/include/nspr      -I/usr/X11R6/include   =
-fPIC -I/usr/X11R6/include -Wall -W -Wno-unused -Wpointer-arith =
-Wcast-align -pedantic -Wno-long-long -pipe -fshort-wchar  -DDEBUG =
-DDEBUG_root -DTRACING -g -I/usr/X11R6/include -include ../config-defs.h =
-DMOZILLA_CLIENT -Wp,-MD,.deps/nsinstall.pp nsinstall.c=0A=
pathsub.c=0A=
gcc -o pathsub.o -c -DOSTYPE=3D\"Linux2.4\" -DOSARCH=3D\"Linux\" =
-DMOZ_REFLOW_PERF -DMOZ_REFLOW_PERF_DSP -DOJI -D_BSD_SOURCE   =
-I../dist/include -I../dist/include =
-I/usr/local/src/mozilla/dist/include/nspr      -I/usr/X11R6/include   =
-fPIC -I/usr/X11R6/include -Wall -W -Wno-unused -Wpointer-arith =
-Wcast-align -pedantic -Wno-long-long -pipe -fshort-wchar  -DDEBUG =
-DDEBUG_root -DTRACING -g -I/usr/X11R6/include -include ../config-defs.h =
-DMOZILLA_CLIENT -Wp,-MD,.deps/pathsub.pp pathsub.c=0A=
gcc -o nsinstall -I/usr/X11R6/include -Wall -W -Wno-unused =
-Wpointer-arith -Wcast-align -pedantic -Wno-long-long -pipe =
-fshort-wchar  -DDEBUG -DDEBUG_root -DTRACING -g nsinstall.o pathsub.o  =
-L../dist/bin -L../dist/lib  -ldl -lm  -lc  =0A=
/usr/bin/perl -I. ./bdate.pl build_number =0A=
../config/nsinstall -R -m 444 nsBuildID.h ../dist/include=0A=
/usr/bin/perl -I../config ../config/build-list.pl =
../dist/include/.headerlist nsBuildID.h=0A=
rm -f ../config/final-link-comps ../config/final-link-libs =
../config/final-link-comp-names=0A=
make[1]: Leaving directory `/usr/local/src/mozilla/config'=0A=
make[1]: Entering directory `/usr/local/src/mozilla/build'=0A=
make[2]: Entering directory `/usr/local/src/mozilla/build/unix'=0A=
chmod 755 mozilla-config=0A=
../../config/nsinstall -R -m 755 mozilla-config ../../dist/bin=0A=
make[2]: Leaving directory `/usr/local/src/mozilla/build/unix'=0A=
make[1]: Leaving directory `/usr/local/src/mozilla/build'=0A=
make[1]: Entering directory `/usr/local/src/mozilla/nsprpub'=0A=
cd config; make export=0A=
make[2]: Entering directory `/usr/local/src/mozilla/nsprpub/config'=0A=
rm -f /usr/local/src/mozilla/dist/bin/nspr-config=0A=
make[2]: Leaving directory `/usr/local/src/mozilla/nsprpub/config'=0A=
cd pr; make export=0A=
make[2]: Entering directory `/usr/local/src/mozilla/nsprpub/pr'=0A=
cd include; make export=0A=
make[3]: Entering directory `/usr/local/src/mozilla/nsprpub/pr/include'=0A=
cd md; make export=0A=
make[4]: Entering directory =
`/usr/local/src/mozilla/nsprpub/pr/include/md'=0A=
../../../config/./nsinstall -R -m 444 ./_linux.cfg =
/usr/local/src/mozilla/dist/include/nspr=0A=
mv -f /usr/local/src/mozilla/dist/include/nspr/_linux.cfg =
/usr/local/src/mozilla/dist/include/nspr/prcpucfg.h=0A=
make[4]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr/include/md'=0A=
cd private; make export=0A=
make[4]: Entering directory =
`/usr/local/src/mozilla/nsprpub/pr/include/private'=0A=
../../../config/./nsinstall -R -m 444 ./pprio.h ./pprthred.h ./prpriv.h =
/usr/local/src/mozilla/dist/include/nspr/private=0A=
make[4]: Leaving directory =
`/usr/local/src/mozilla/nsprpub/pr/include/private'=0A=
cd obsolete; make export=0A=
make[4]: Entering directory =
`/usr/local/src/mozilla/nsprpub/pr/include/obsolete'=0A=
../../../config/./nsinstall -R -m 444 ./pralarm.h ./probslet.h =
./protypes.h ./prsem.h /usr/local/src/mozilla/dist/include/nspr/obsolete=0A=
make[4]: Leaving directory =
`/usr/local/src/mozilla/nsprpub/pr/include/obsolete'=0A=
../../config/./nsinstall -R -m 444 ./nspr.h ./pratom.h ./prbit.h =
./prclist.h ./prcmon.h ./prcountr.h ./prcvar.h ./prdtoa.h ./prenv.h =
./prerr.h ./prerror.h ./prinet.h ./prinit.h ./prinrval.h ./prio.h =
./pripcsem.h ./prlink.h ./prlock.h ./prlog.h ./prlong.h ./prmem.h =
./prmon.h ./prmwait.h ./prnetdb.h ./prolock.h ./prpdce.h ./prprf.h =
./prproces.h ./prrng.h ./prrwlock.h ./prshm.h ./prshma.h ./prsystem.h =
./prthread.h ./prtime.h ./prtpool.h ./prtrace.h ./prtypes.h ./prvrsion.h =
./prwin16.h /usr/local/src/mozilla/dist/include/nspr=0A=
make[3]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr/include'=0A=
cd src; make export=0A=
make[3]: Entering directory `/usr/local/src/mozilla/nsprpub/pr/src'=0A=
cd io; make export=0A=
make[4]: Entering directory `/usr/local/src/mozilla/nsprpub/pr/src/io'=0A=
gcc -o prfdcach.o -c     -ansi -Wall -pipe -g -fPIC  -UNDEBUG  =
-DDEBUG=3D1 -DDEBUG_root=3D1 -DXP_UNIX=3D1 -D_POSIX_SOURCE=3D1 =
-D_BSD_SOURCE=3D1 -D_SVID_SOURCE=3D1 -D_LARGEFILE64_SOURCE=3D1 =
-DHAVE_FCNTL_FILE_LOCKING=3D1 -DLINUX=3D1 -Dlinux=3D1 -DHAVE_LCHOWN=3D1 =
-DHAVE_STRERROR=3D1 -D_REENTRANT=3D1  -DFORCE_PR_LOG -D_PR_PTHREADS =
-UHAVE_CVAR_BUILT_ON_SEM -D_NSPR_BUILD_ =
-I/usr/local/src/mozilla/dist/include/nspr -I../../../pr/include =
-I../../../pr/include/private  prfdcach.c=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:55,=0A=
                 from =
/usr/local/src/mozilla/dist/include/nspr/pratom.h:43,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:38,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prcpucfg.h:419:2: #error =
"Unknown CPU architecture"=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/pratom.h:43,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:38,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:277:2: #error No =
suitable type for PRInt8/PRUint8=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:290:2: #error No =
suitable type for PRInt16/PRUint16=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:310:2: #error No =
suitable type for PRInt32/PRUint32=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:361:2: #error =
'sizeof(int)' not sufficient for platform use=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/pratom.h:43,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:38,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:384: parse error =
before "PROffset32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:384: warning: type =
defaults to `int' in declaration of `PROffset32'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:384: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:411: parse error =
before "PRBool"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:411: warning: type =
defaults to `int' in declaration of `PRBool'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:411: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:421: parse error =
before "PRPackedBool"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:421: warning: type =
defaults to `int' in declaration of `PRPackedBool'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:421: warning: data =
definition has no type or storage class=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:482,=0A=
                 from =
/usr/local/src/mozilla/dist/include/nspr/pratom.h:43,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:38,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:45: parse =
error before "uintn"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:45: =
warning: type defaults to `int' in declaration of `uintn'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:45: =
warning: data definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:47: parse =
error before "intn"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:47: =
warning: type defaults to `int' in declaration of `intn'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:47: =
warning: data definition has no type or storage class=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:482,=0A=
                 from =
/usr/local/src/mozilla/dist/include/nspr/pratom.h:43,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:38,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:114: parse =
error before "uint32"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:114: =
warning: type defaults to `int' in declaration of `uint32'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:114: =
warning: data definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:125: parse =
error before "uint16"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:125: =
warning: type defaults to `int' in declaration of `uint16'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:125: =
warning: data definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:133: parse =
error before "uint8"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:133: =
warning: type defaults to `int' in declaration of `uint8'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:133: =
warning: data definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:154: parse =
error before "int32"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:154: =
warning: type defaults to `int' in declaration of `int32'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:154: =
warning: data definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:168: parse =
error before "int16"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:168: =
warning: type defaults to `int' in declaration of `int16'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:168: =
warning: data definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:178: parse =
error before "int8"=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:178: =
warning: type defaults to `int' in declaration of `int8'=0A=
/usr/local/src/mozilla/dist/include/nspr/obsolete/protypes.h:178: =
warning: data definition has no type or storage class=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:38,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:57: parse error before =
"PR_AtomicIncrement"=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:57: parse error before =
'*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:57: warning: type =
defaults to `int' in declaration of `PR_AtomicIncrement'=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:57: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:68: parse error before =
"PR_AtomicDecrement"=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:68: parse error before =
'*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:68: warning: type =
defaults to `int' in declaration of `PR_AtomicDecrement'=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:68: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:80: parse error before =
"PR_AtomicSet"=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:80: parse error before =
'*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:80: warning: type =
defaults to `int' in declaration of `PR_AtomicSet'=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:80: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:92: parse error before =
"PR_AtomicAdd"=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:92: parse error before =
'*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:92: warning: type =
defaults to `int' in declaration of `PR_AtomicAdd'=0A=
/usr/local/src/mozilla/dist/include/nspr/pratom.h:92: warning: data =
definition has no type or storage class=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:39,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:56: parse error before =
"PR_CeilingLog2"=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:56: parse error before =
"i"=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:56: warning: type =
defaults to `int' in declaration of `PR_CeilingLog2'=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:56: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:61: parse error before =
"PR_FloorLog2"=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:61: parse error before =
"i"=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:61: warning: type =
defaults to `int' in declaration of `PR_FloorLog2'=0A=
/usr/local/src/mozilla/dist/include/nspr/prbit.h:61: warning: data =
definition has no type or storage class=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/prmon.h:39,=0A=
                 from =
/usr/local/src/mozilla/dist/include/nspr/prcmon.h:48,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:41,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:58: parse error =
before "PRIntervalTime"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:58: warning: type =
defaults to `int' in declaration of `PRIntervalTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:58: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:105: parse error =
before "PR_IntervalNow"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:105: warning: type =
defaults to `int' in declaration of `PR_IntervalNow'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:105: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:123: parse error =
before "PR_TicksPerSecond"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:123: warning: type =
defaults to `int' in declaration of `PR_TicksPerSecond'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:123: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:142: parse error =
before "PR_SecondsToInterval"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:142: parse error =
before "seconds"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:142: warning: type =
defaults to `int' in declaration of `PR_SecondsToInterval'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:142: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:143: parse error =
before "PR_MillisecondsToInterval"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:143: parse error =
before "milli"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:143: warning: type =
defaults to `int' in declaration of `PR_MillisecondsToInterval'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:143: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:144: parse error =
before "PR_MicrosecondsToInterval"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:144: parse error =
before "micro"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:144: warning: type =
defaults to `int' in declaration of `PR_MicrosecondsToInterval'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:144: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:163: parse error =
before "PR_IntervalToSeconds"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:163: parse error =
before "ticks"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:163: warning: type =
defaults to `int' in declaration of `PR_IntervalToSeconds'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:163: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:164: parse error =
before "PR_IntervalToMilliseconds"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:164: parse error =
before "ticks"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:164: warning: type =
defaults to `int' in declaration of `PR_IntervalToMilliseconds'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:164: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:165: parse error =
before "PR_IntervalToMicroseconds"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:165: parse error =
before "ticks"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:165: warning: type =
defaults to `int' in declaration of `PR_IntervalToMicroseconds'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinrval.h:165: warning: data =
definition has no type or storage class=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/prcmon.h:48,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:41,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prmon.h:92: parse error before =
"PRIntervalTime"=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:41,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prcmon.h:73: parse error before =
"PRIntervalTime"=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:42,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prcvar.h:94: parse error before =
"PRIntervalTime"=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:43,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prdtoa.h:69: parse error before =
"PRIntn"=0A=
/usr/local/src/mozilla/dist/include/nspr/prdtoa.h:82: parse error before =
"PRIntn"=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:45,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:42: parse error =
before "PRErrorCode"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:42: warning: type =
defaults to `int' in declaration of `PRErrorCode'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:42: warning: data =
definition has no type or storage class=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:45,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:54: parse error =
before "errorCode"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:66: parse error =
before "textLength"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:71: parse error =
before "PR_GetError"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:71: warning: type =
defaults to `int' in declaration of `PR_GetError'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:71: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:77: parse error =
before "PR_GetOSError"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:77: warning: type =
defaults to `int' in declaration of `PR_GetOSError'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:77: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:84: parse error =
before "PR_GetErrorTextLength"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:84: warning: type =
defaults to `int' in declaration of `PR_GetErrorTextLength'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:84: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:91: parse error =
before "PR_GetErrorText"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:91: warning: type =
defaults to `int' in declaration of `PR_GetErrorText'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:91: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:174: parse error =
before "PRLanguageCode"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:174: warning: type =
defaults to `int' in declaration of `PRLanguageCode'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:174: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:196: parse error =
before "PRErrorCode"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:196: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:198: parse error =
before '}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:226: parse error =
before "code"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:259: parse error =
before "code"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:273: parse error =
before "code"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:300: parse error =
before "PR_ErrorInstallTable"=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:300: warning: type =
defaults to `int' in declaration of `PR_ErrorInstallTable'=0A=
/usr/local/src/mozilla/dist/include/nspr/prerror.h:300: warning: data =
definition has no type or storage class=0A=
In file included from =
/usr/local/src/mozilla/dist/include/nspr/prinit.h:38,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:47,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prthread.h:140: parse error =
before "PRUint32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prthread.h:201: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prthread.h:214: parse error =
before "tpdIndex"=0A=
/usr/local/src/mozilla/dist/include/nspr/prthread.h:225: parse error =
before "tpdIndex"=0A=
/usr/local/src/mozilla/dist/include/nspr/prthread.h:262: parse error =
before "ticks"=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:47,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:85: parse error before =
'*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:85: warning: type =
defaults to `int' in declaration of `PRBool'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:85: `PRBool' declared =
as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:85: `PRBool' =
redeclared as different kind of symbol=0A=
/usr/local/src/mozilla/dist/include/nspr/prtypes.h:411: previous =
declaration of `PRBool'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:95: `PR_VersionCheck' =
declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:109: parse error =
before "PRUintn"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:129: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:129: parse error =
before "argc"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:129: warning: type =
defaults to `int' in declaration of `PRIntn'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:129: `PRIntn' declared =
as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:132: parse error =
before "prmain"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:132: `PR_Initialize' =
declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:137: `PR_Initialized' =
declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:184: parse error =
before "numCPUs"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:216: field =
`initialized' declared as a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:217: parse error =
before "PRInt32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:217: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:219: parse error =
before '}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:219: warning: type =
defaults to `int' in declaration of `PRCallOnceType'=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:219: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prinit.h:224: parse error =
before '*' token=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/prio.h:46,=0A=
                 from /usr/local/src/mozilla/dist/include/nspr/nspr.h:49,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:85: parse error before =
"PRInt32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:85: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:86: warning: type =
defaults to `int' in declaration of `tp_dst_offset'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:86: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:87: warning: type =
defaults to `int' in declaration of `PRTimeParameters'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:87: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:113: parse error =
before "PRInt32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:113: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:114: warning: type =
defaults to `int' in declaration of `tm_sec'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:114: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:116: parse error =
before "tm_min"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:116: warning: type =
defaults to `int' in declaration of `tm_min'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:116: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:117: parse error =
before "tm_hour"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:117: warning: type =
defaults to `int' in declaration of `tm_hour'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:117: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:118: parse error =
before "tm_mday"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:118: warning: type =
defaults to `int' in declaration of `tm_mday'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:118: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:120: parse error =
before "tm_month"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:120: warning: type =
defaults to `int' in declaration of `tm_month'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:120: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:121: parse error =
before "tm_year"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:121: warning: type =
defaults to `int' in declaration of `tm_year'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:121: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:124: parse error =
before "tm_wday"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:124: warning: type =
defaults to `int' in declaration of `tm_wday'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:124: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:126: parse error =
before "tm_yday"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:126: warning: type =
defaults to `int' in declaration of `tm_yday'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:126: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:129: parse error =
before "tm_params"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:129: warning: type =
defaults to `int' in declaration of `tm_params'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:129: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:130: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:130: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:155: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:155: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:155: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:155: warning: type =
defaults to `int' in declaration of `PRTimeParameters'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:155: =
`PRTimeParameters' declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:155: =
`PRTimeParameters' redeclared as different kind of symbol=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:87: previous =
declaration of `PRTimeParameters'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:192: parse error =
before "PRTimeParamFn"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:200: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:200: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:215: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:222: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:222: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:222: =
`PR_LocalTimeParameters' declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:225: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:225: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:225: =
`PR_GMTParameters' declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:231: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:231: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:231: =
`PR_USPacificTimeParameters' declared as function returning a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:281: parse error =
before "PR_FormatTime"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:282: warning: type =
defaults to `int' in declaration of `PRExplodedTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:282: parse error =
before '*' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:282: warning: type =
defaults to `int' in declaration of `PR_FormatTime'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:282: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:288: parse error =
before "PR_FormatTimeUSEnglish"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:288: parse error =
before "PRUint32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:289: warning: type =
defaults to `int' in declaration of `PR_FormatTimeUSEnglish'=0A=
/usr/local/src/mozilla/dist/include/nspr/prtime.h:289: warning: data =
definition has no type or storage class=0A=
In file included from /usr/local/src/mozilla/dist/include/nspr/nspr.h:49,=0A=
                 from ../../../pr/include/private/primpl.h:66,=0A=
                 from prfdcach.c:35:=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:83: field `identity' =
declared as a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:150: parse error before =
"PRUint8"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:150: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:150: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:151: warning: type =
defaults to `int' in declaration of `_S6_u16'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:151: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:152: parse error before =
"_S6_u32"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:152: warning: type =
defaults to `int' in declaration of `_S6_u32'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:152: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:154: parse error before =
'}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:154: warning: type =
defaults to `int' in declaration of `_S6_un'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:154: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:155: parse error before =
'}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:165: parse error before =
"PRUint16"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:165: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:165: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:171: parse error before =
'}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:171: warning: type =
defaults to `int' in declaration of `raw'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:171: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:173: parse error before =
"PRUint16"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:173: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:174: warning: type =
defaults to `int' in declaration of `port'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:174: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:175: parse error before =
"ip"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:175: warning: type =
defaults to `int' in declaration of `ip'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:175: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:181: parse error before =
'}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:181: warning: type =
defaults to `int' in declaration of `inet'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:181: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:183: parse error before =
"PRUint16"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:183: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:184: warning: type =
defaults to `int' in declaration of `port'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:184: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:185: parse error before =
"flowinfo"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:185: warning: type =
defaults to `int' in declaration of `flowinfo'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:185: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:186: conflicting types =
for `ip'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:175: previous =
declaration of `ip'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:187: parse error before =
"scope_id"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:187: warning: type =
defaults to `int' in declaration of `scope_id'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:187: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:188: warning: type =
defaults to `int' in declaration of `ipv6'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:188: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:191: parse error before =
"PRUint16"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:191: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:193: parse error before =
'}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:193: warning: type =
defaults to `int' in declaration of `local'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:193: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:195: parse error before =
'}' token=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:231: field `polarity' =
declared as a function=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:232: parse error before =
"PRIntervalTime"=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:232: warning: no =
semicolon at end of struct or union=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:233: warning: type =
defaults to `int' in declaration of `PRLinger'=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:233: warning: data =
definition has no type or storage class=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:236: field `mcaddr' has =
incomplete type=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:237: field `ifaddr' has =
incomplete type=0A=
/usr/local/src/mozilla/dist/include/nspr/prio.h:238: confused by earlier =
errors, bailing out=0A=
{standard input}: Assembler messages:=0A=
{standard input}:593: Warning: end of file in string; inserted '"'=0A=
{standard input}:613: Warning: .stabs: missing comma=0A=
make[4]: *** [prfdcach.o] Error 1=0A=
make[4]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr/src/io'=0A=
make[3]: *** [export] Error 2=0A=
make[3]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr/src'=0A=
make[2]: *** [export] Error 2=0A=
make[2]: Leaving directory `/usr/local/src/mozilla/nsprpub/pr'=0A=
make[1]: *** [export] Error 2=0A=
make[1]: Leaving directory `/usr/local/src/mozilla/nsprpub'=0A=
make: *** [export] Error 2=0A=

------=_NextPart_000_0017_01C16569.61E3B910--



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From: "kenneth westelinck" <kennywest1@hotmail.com>
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Subject: Re: [parisc-linux] Compiling Mozilla on parisc-linux fails
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To: "Albert Strasheim" <fullung@ilink.nis.za>
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Xref: news.gmane.org gmane.linux.ports.parisc:12891

Albert,


So what does this mean exactly? Do I simply install the sparc headers and
try to do a "./configure" with: "--build=sparc-linux --host=sparc-linux"?
Where can I get these headers anyway?
Maybe these are all stupid questions, but I am very new to parisc-linux and
its issues :-(
Many thanks in advance.

regards,

Kenneth



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From: Daniel Engstrom <5116@telia.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:12892

Hello all, 

I have some qustions regarding the EISA support and other stuff.

1) Non sharable interrupts
ISA IRQ are edge triggered and inherently un-sharable. Should 
there be a flag-field attached to the irq region struct which
reports the sharability of an irq?

2) ISR Re-entrance
I think that an IRQ manager needs to mask the IRQ while serviceing it
to avoid reentring the ISR(s). Is this done for non-EISA irq manager on 
palinux?

3) String I/O implementation
The string I/O functions (insl/outsl and friends) are implemented in 
terms of inl/outl and so on. This means that the HPA switch code in 
arch/parisc/kernel/pci.c is executed once per word in the transfer.
If the pci_hba_data struct had entries for these the test would have 
been done outside of the loop.

4) EISA EEPROM format
I have not yet fully understood the fromat of the EISA configuration 
EEPROM located on the system board. 
Could anyone fill-in with how the EISA slot configuration space should be 
decoded. I have figured out the general header and the fixed part of the 
per-slot structure.

5) EISA Memory Mapping/DMA stuff
I'd like to make something here too, any pointer to how to proceed?
What I thnk I have figured out is the following:
It seems like that from the EISA side the window is 4MB starting at 
1MB. From the host side the window seem to start at 0xfc100000 and be 
1.75MB in size.
How is the window controlled?

/Daniel

-- 



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On Sat, Nov 03, 2001 at 04:24:20PM -0500, Herb Radford wrote:
> I have a C110 and a C200 sitting here and upon boot attempts (from the
> 0.9.2 CD), I don't get too far. 

Have you tried with serial console?

Richard



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On Fri, Nov 02, 2001 at 05:27:25PM -0500, Griffin, Aubrey, BMCIO wrote:
> I wiil add that this is a effective fix although quick and dirty. 

The dhcp-client .deb has been updated since the 0.9.2 ISO, so you
coul dinstall an updated package, which would have the same effect.

Richard




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On Sat, 3 Nov 2001, Randolph Chung wrote:

> In a chroot built with debootstrap plus build-essential:
> - Rebuild binutils from sourceware cvs
> - Using new binutils, rebuild glibc (2.2.4-5) with am's latest patch
> 
> With these bits installed, the following were tested:
> - build and install wget (just a simple sanity test)
> - install and run libgtk1.2 and gkrellm
> - recompile and run python1.5 and apache
> 
> all these seem to be ok now. Before recompiling, things like python will
> die with a SIGILL

That's good news :-)  FYI, I work at Agilent now (formerly HP-owned
company) and am surrounded by PA-RISC machines.  I'm trying to weasel an
extra machine out of them, but have only been there two weeks so it may
take some extra time :-P

> Chris/Ben: can you let us know when we can expect new binutils/glibc?
> I'll forward the glibc patch to Ben separately.

I'm hoping for a new one soon.  I may not package it, however, due to some
flux in other platforms.  If we can work together to isolate the patches
that are needed for hppa, I'd be happy to include those in my next upload,
though (I already am planning one).

> If you can think of anything else that we should try to make sure
> everything works, please let us know.

If I think of something, I'll write ya.  Also, if I manage to get a
machine, I'm sure you'll be hearing from me (probably will be an Apollo
series 735, fyi...slow, but effective).

C




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On Sun, Nov 04, 2001 at 07:46:23PM +0100, kenneth westelinck wrote:
> Nope, same error (see the attached file). Any other ideas?

how about using dpkg-buildpackage or applying the patches by hand ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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On Sun, Nov 04, 2001 at 09:10:33PM -0500, Christopher C. Chimelis wrote:
> If I think of something, I'll write ya.  Also, if I manage to get a
> machine, I'm sure you'll be hearing from me (probably will be an Apollo
> series 735, fyi...slow, but effective).

735 is a pretty cool machine.  don't get one which requires a
fast-wide-diff scsi interface though; we don't have that working yet.

-- 
Revolutions do not require corporate support.



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On Mon, 5 Nov 2001, Matthew Wilcox wrote:

> 735 is a pretty cool machine.  don't get one which requires a
> fast-wide-diff scsi interface though; we don't have that working yet.

I think that's all we have, but I'm not sure.  I'll look at the one that I
do have and see what the "norm" is around the office (the one I have has
to remain HP-UX for work reasons, but it should be a representative sample
from what I've seen so far).  These things also don't have much RAM (mine
has 64MB, IIRC)...would I need more or would that do?

C




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On Sun, Nov 04, 2001 at 09:40:29PM -0500, Christopher C. Chimelis wrote:
> I think that's all we have, but I'm not sure.  I'll look at the one that I
> do have and see what the "norm" is around the office (the one I have has
> to remain HP-UX for work reasons, but it should be a representative sample
> from what I've seen so far).  These things also don't have much RAM (mine
> has 64MB, IIRC)...would I need more or would that do?

ok, just make sure you get a disc attached to the narrow interface,
or you'll be limited to NFS... 64MB is fine.

-- 
Revolutions do not require corporate support.



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What still needs to happen on FW diff SCSI to get it working?

Dan

On Sunday, November 4, 2001, at 08:29 PM, Matthew Wilcox wrote:

> On Sun, Nov 04, 2001 at 09:10:33PM -0500, Christopher C. Chimelis wrote:
>> If I think of something, I'll write ya.  Also, if I manage to get a
>> machine, I'm sure you'll be hearing from me (probably will be an Apollo
>> series 735, fyi...slow, but effective).
>
> 735 is a pretty cool machine.  don't get one which requires a
> fast-wide-diff scsi interface though; we don't have that working yet.
>
> --
> Revolutions do not require corporate support.
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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OK, burned the straight download ISO the way that works with EasyCD 
Creator, but it still gives me the same message as last time, in the 
same place as last time.

<snip of seg 0-3 loads>
Error: read from boot device failed( status = -4)
byteio_read: seekread() returned -1 expected 2048
error:  segment 0 read() failed

The CD was burned at 2x and the discs are 4x certified (PNY).  The CD is 
external on the 50 pin narrow bus (core.SCSI.2.0)  However, it does not 
have termination on the external bus.  The internal narrow SCSI devices 
*do* have termination (ie the DDS2 tape drive).  I have switched the CD 
with the DDS2 drive before, but not this time with the new correct 
burn.  Could termination be an issue here and should I try putting the 
CD drive internally with termination?

C110
64Mb x 2
2.1GB FW differential SCSI
DDS2 narrow tape drive
External narrow CD drive
Standard blah blah graphics

Thanks in advance,
Dan


On Friday, November 2, 2001, at 04:21 PM, Grant Grundler wrote:

> Daniel Williams wrote:
>> Error: read from boot device failed (status = -4)
>> byteio_read: seekread() returned -1 expected 2048
>> Error:  segment 0 read() failed
>>
>> Any thoughts?
>
> When burning the IA64 boot CD, i was warned to use the 2x (vs 4x) burn
> speed. This sounded like hogwash to me but the person was told the disk
> burned at 4x may not work well with older/slower CD drives. If someone
> could confirm this I'd appreciate it...anyway, the ia64 CD worked fine.
>
> grant
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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From: Matt.VanDeWerken@csiro.au
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Subject: RE: [parisc-linux] Re: FW SCSI (Was hppa binutils/glibc updates)
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I'm not entirely sure of the current status of the 735 FW SCSI stuff, but
Richard sent me a kernel with some experimental drivers in it to test (he
doesn't have a 735 himself) - it stack faulted on boot, so there's still
problems there.

As far as I understand the situation, the actual chip (ncr '720 I believe)
is well documented, but there's a proprietary HP chip in between the ncr
chip and the machine. It's this chip that's hard to interface to; Richard
has seen some HPUX source and has necessary clearance to use that knowledge,
so it's basically dependent on him.

I, too, would like to see thw FW scsi support going, mostly because I have
two of these machines and would like to use the internal disks (4GB would do
a lot for my network disk space...)

Cheers,
Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - 4069 - AUSTRALIA
ph:  +61-7-3327 4685     fax:  +61-7-3327 4455
email:  matt.vandewerken@csiro.au


> -----Original Message-----
> From: Daniel Williams [mailto:dan@bigw.org]
> Sent: Monday, 5 November 2001 12:52 PM
> To: parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] Re: FW SCSI (Was hppa binutils/glibc updates)
> 
> 
> What still needs to happen on FW diff SCSI to get it working?
> 
> Dan
> 
> On Sunday, November 4, 2001, at 08:29 PM, Matthew Wilcox wrote:
> 
> > On Sun, Nov 04, 2001 at 09:10:33PM -0500, Christopher C. 
> Chimelis wrote:
> >> If I think of something, I'll write ya.  Also, if I manage to get a
> >> machine, I'm sure you'll be hearing from me (probably will 
> be an Apollo
> >> series 735, fyi...slow, but effective).
> >
> > 735 is a pretty cool machine.  don't get one which requires a
> > fast-wide-diff scsi interface though; we don't have that 
> working yet.
> >
> > --
> > Revolutions do not require corporate support.
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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On Sun, Nov 04, 2001 at 08:56:40PM -0600, Daniel Williams wrote:
> OK, burned the straight download ISO the way that works with EasyCD 
> Creator, but it still gives me the same message as last time, in the 
> same place as last time.
> 
> <snip of seg 0-3 loads>
> Error: read from boot device failed( status = -4)
> byteio_read: seekread() returned -1 expected 2048
> error:  segment 0 read() failed
> 
> The CD was burned at 2x and the discs are 4x certified (PNY).  The CD is 
> external on the 50 pin narrow bus (core.SCSI.2.0)  However, it does not 
> have termination on the external bus.  The internal narrow SCSI devices 
> *do* have termination (ie the DDS2 tape drive).  I have switched the CD 
> with the DDS2 drive before, but not this time with the new correct 
> burn.  Could termination be an issue here and should I try putting the 
> CD drive internally with termination?

If your external chain is unterminated, then yes, termination could be
an issue. It's not certain, but it's certainly easier to try than
testing another CDROM, right?

Good luck,
Jurriaan
-- 
Put it this way, when people slip in what dogs have left in the streets,
they do tend to say, 'Oops, I've trod in an Edmund'.
	Blackadder II
GNU/Linux 2.4.13-ac6 on Debian/Alpha 64-bits 990 bogomips load:0.06 0.04 0.03



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On Mon, 5 Nov 2001, Matthew Wilcox wrote:

> ok, just make sure you get a disc attached to the narrow interface,
> or you'll be limited to NFS... 64MB is fine.

Ok :-)  I'll see what I can muster this week.  We seem to be
differential-poor drive-wise, so I don't think I'll have a problem getting
a narrow drive :-)  Also, we have a few external units laying around that
are all narrow, so I may just use one of those.

C




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Daniel Engstrom wrote:
> 3) String I/O implementation
> The string I/O functions (insl/outsl and friends) are implemented in 
> terms of inl/outl and so on. This means that the HPA switch code in 
> arch/parisc/kernel/pci.c is executed once per word in the transfer.
> If the pci_hba_data struct had entries for these the test would have 
> been done outside of the loop.

It doesn't matter. The cost (in cycles) to perform the read
far exceeds any savings in cpu cycles getting rid of the switch
will bring. I'm talking 500 or so cycles per IO port space read
on a 400Mhz PA8500.

Of course, you could measure inb() precisely with CR16 on *your* box
(using EISA) since YMMV and I haven't done this in a while.

grant



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Subject: Re: [parisc-linux] Old but open problem of Xfree on 2.4.9-pa75
Date: Mon, 5 Nov 2001 10:21:24 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:12906

Hi Christoph,

I think you will need to limit the XFree-86 screen resolution in
/etc/XF86Config to exactly that resolution and bpp depth which 
sti/stifb tells you. Delete all other resolutions and the warnings should
go away.

Greetings,
Helge 

On Sunday 04 November 2001 01:20, Christoph Plattner wrote:
> Hello !
>
> Starting current Xfree-4.1.0.1 the system reports the already described
>
> FBIOPUT_VSCREENINFO: Invalid argument
>
> (a message not written into the log file !!)
>
> This message is written after
>
> (**) FBDev(0): Using "Shadow Frambuffer"
>
> The resulting reaction is the fatal error with an abort.
>
>
> What is the reason for that ?
> By the way, the server also reports not having
> the PCI stuff, which is perhaps not compiled in my kernel, but that
> seems not
> to be the problem here.
>
> How can this can be solved. My config uses 8 bbp, the STI console driver
> inside
> the kernel also reports 1280x1024-8 ! So this should run ....
>
> Please help
>
> Christoph P.



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From: Herb Radford <herbr@magma.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Booting C200
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Xref: news.gmane.org gmane.linux.ports.parisc:12907

OK, I found some stuff in the archive on the "Chassis Codes" and set up an
old laptop as a terminal, disconnected the keyboard (and mouse) and booted.
Now I tried this with the disk out of my 712/60 and the C200 is not hung.
It proceeds through the boot process and then hangs on starting cron.

>From the console log, I cannot find any mention of a graphics card so I
would assume that the A4553A is not supported/handled correctly. Is there a
graphics card which is "supported"? I don't know if I can get my hands on
another graphics card (other than the A4070A in the C110).

I'll try the "Chassis Codes" thing on the C110 and send the log.

Here's the log from my attempt. Note that I had shut down by pulling the AC
when the box hung so I had to fsck the partition manually:
TEST 2023
TEST 2030
TEST 2040
TEST 2060
TEST 2070
TEST 2071
TEST 2072
TEST 2073
TEST 2074
TEST 2080
TEST 10B1
INIT 103C
TEST 103E
INIT C30C
INIT 10CA
INIT C30C
INIT 10CA
INIT CD00
INIT CD08
TEST CD10
INIT CD10
TEST CD11
TEST CD12
TEST CD13
TEST CD14
TEST CD15
TEST CD1F
INIT CD1F
TEST CD1A
TEST CD1B
TEST CD1C
TEST CD1D
TEST CD20
INIT CD20
TEST CD21
TEST CD22
TEST CD23
TEST CD24
TEST CD25
TEST CD2A
TEST CD2B
TEST CD2C
TEST CD2D
TEST CD16
INIT CDFF
TEST C210
TEST C220
TEST C230
TEST C2D3
TEST C2D7
TEST C240
TEST C260
TEST C261
TEST C263
TEST C264
TEST C265
TEST C2E0
INIT C30C
INIT 10CA
TEST 4000
TEST 4020
TEST 4021
TEST 4021
TEST 4022
TEST 4022
TEST 4023
TEST 4023
TEST 4024
TEST 4024
TEST 4025
TEST 4025
TEST 4026
TEST 4026
TEST 4029
TEST 4029
TEST 402A
TEST 402A
TEST 402D
TEST 402D
TEST 4030
TEST 4040
TEST 4050
TEST 4060
TEST 2090
TEST 2050
TEST 10B2
TEST 10A0
TEST 10A1
TEST 10A2
TEST 10A3
TEST 10A4
TEST 10A5
INIT 103C
TEST 400E
INIT C30C
INIT 10CA
INIT C3FF
INIT C30C
INIT 10CA
INIT 8C20
INIT 8C21
INIT 8C22
INIT 8C10
INIT 8C11
INIT 8C12
TEST 301B
TEST 301C
INIT C653
INIT C400
INIT C440
INIT C642
WARN 80F4
WARN 9000
INIT C641
INIT C642
WARN 80F4
INIT C605
INIT C600
INIT C640



Firmware Version  5.0

Duplex Console IO Dependent Code (IODC) revision 1

----------------------------------------------------------------------------
--

   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved

---------------------------------------------------------------------------
---


  Processor   Speed            State           Coprocessor State  I/D Cache 

  ---------  --------   ---------------------  -----------------
-------------

      0      200 MHz    Active                 Functional         512 KB/1 MB


  Central Bus Speed (in MHz) :        120


  Available memory (bytes)    : 268435456

  Good memory required (bytes):   22343680 


  Primary boot path:    FWSCSI.6.0

  Alternate boot path:  SESCSI.5.0

  Console path:         GRAPHICS(4)

  Keyboard path:        PS2


------- Main Menu
-------------------------------------------------------------


        Command                         Description

        -------                         -----------

        BOot [PRI|ALT|<path>]           Boot from specified path

        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path

        SEArch [DIsplay|IPL] [<path>]   Search for boot devices


        COnfiguration [<command>]       Access Configuration menu/commands

        INformation [<command>]         Access Information menu/commands

        SERvice [<command>]             Access Service menu/commands


        DIsplay                         Redisplay the current menu

        HElp [<menu>|<command>]         Display help for menu or command

        RESET                           Restart the system

-------

Main Menu: Enter command > sea ipl


Searching for device(s) with bootable media...

This may take several minutes.


To discontinue search, press any key (termination may not be immediate).



   Path Number        Device Path              Device Type and Utilities

   -----------        -----------------        -------------------------

   P0                 SESCSI.6.0               SEAGATE ST31230N        

                                               IPL



Search terminated.



Main Menu: Enter command > bo p0

Interact with IPL (Y, N, Q)?> n

INIT C740

Booting... 
Boot IO Dependent Code (IODC) revision 153
INIT C780
INIT C30C
INIT 10CA


HARD Booted.
INIT C7FF
palo ipl 0.92 bame@c3k Wed Jun 20 11:49:11 MDT 2001

0/vmlinux32 2853588 bytes @ 0x48000

Partition Start(MB) End(MB) Id Type

1               1       9   f0 Palo

2              10     131   82 swap

3             132     227   83 ext2

4             228    1001   83 ext2


Command line: 'root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102'


Kernel: partition 3 file /boot/vmlinux-2.4.0

ext2 block size 1024
ext2_mount(partition 3) returns 0

ext2_open(/boot/vmlinux-2.4.0) = 3

ELF32 executable

Entry 00100000 first 00100000 n 4

Segment 0 load 00100000 size 1606948 mediaptr 0x1000

Segment 1 load 0028a000 size 468472 mediaptr 0x18a000

Segment 2 load 00300000 size 8192 mediaptr 0x1fd000

Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8

branching to kernel entry point 0x00100000

Set default PSW W bit to 0

Linux version 2.4.0-32 (root@slab) (gcc version 3.0 (Debian)) #1 Thu Jun
28 11:49:00 BST 2001

FP[0] enabled: Rev 0 Model 14

The 32-bit Kernel has started...

Determining PDC firmware type: Newer Box

model	000059d0 00000481 00000000 00000002 77ac21d7 100000f0 00000008
000000b2 000000b2

vers	00000400

cpuid	000001d0

CPUID	vers 14 rev 16

model	9000/782/C200+

Total Memory: 256 Mb

On node 0 totalpages: 65536

zone(0): 65536 pages.

zone(1): 0 pages.

zone(2): 0 pages.

PDC reported no LCD or LED.

Searching for devices...

Found devices:

1. Raven U/L2 Dino RS-232 (10) at 0xf2003000, versions 0x6, 0x0, 0x8c,
0x0, 0x0

2. Raven+ w SE FWSCSI Core BA (11) at 0xffd00000, versions 0x56, 0x0,
0x81, 0x0, 0x0,  additional addresses: 0xffd0c000 0xffc00000 

3. Raven+ w SE FWSCSI Core RS-232 (10) at 0xffd05000, versions 0x56, 0x0,
0x8c, 0x0, 0x0

4. Raven+ w SE FWSCSI Core SCSI (10) at 0xffd06000, versions 0x56, 0x0,
0x82, 0x0, 0x0

5. Raven+ w SE FWSCSI Core Centronics (10) at 0xffd02000, versions 0x56,
0x0, 0x74, 0x0, 0x0,  additional addresses: 0xffd01000 0xffd03000 

6. Raven+ w SE FWSCSU Core Audio (10) at 0xffd04000, versions 0x56, 0x4,
0x7b, 0x0, 0x0

7. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08000, versions 0x56,
0x0, 0x84, 0x0, 0x0

8. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08100, versions 0x56,
0x0, 0x84, 0x0, 0x0

9. U2-IOA BC GSC+ Port (7) at 0xf203f000, versions 0x501, 0x1, 0xc, 0x3, 0x0

10. U2-IOA BC GSC+ Port (7) at 0xf103f000, versions 0x501, 0x1, 0xc, 0x3, 0x0

11. Cujo PCI Bridge (13) at 0xf1000000, versions 0x682, 0x1, 0xa, 0x1,
0x0,  additional addresses: 0xf1800000 0xf6000000 

12. Dino PCI Bridge (13) at 0xf2000000, versions 0x680, 0x2, 0xa, 0x0,
0x0,  additional addresses: 0xf2800000 

13. U2-IOA BC Runway Port (12) at 0xfff88000, versions 0x580, 0xf, 0xb,
0x1, 0x50

14. U2-IOA BC Runway Port (12) at 0xfff8a000, versions 0x580, 0xf, 0xb,
0x1, 0x50

15. Raven U 200 (9000/780/C200) (0) at 0xfffa0000, versions 0x59d, 0x0,
0x4, 0x0, 0x81

16. Raven U 200 (1) at 0xfffb1000, versions 0x5d, 0x0, 0x9, 0x0, 0x0

That's a total of 16 devices.

CPU(s): 1 x PA8200 (PCX-U+) at 200.000000 MHz

Kernel command line: root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102

Console: colour dummy device 160x64

Calibrating delay loop... 398.95 BogoMIPS

Memory: 255236k available

Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)

Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)

Page-cache hash table entries: 65536 (order: 6, 262144 bytes)

Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)

POSIX conformance testing by UNIFIX

Dino version 3.0 (bridge mode) found at 0xf2000000



The GSCtoPCI (Dino hrev 2) bus converter found may exhibit

data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.

Systems shipped after Aug 20, 1997 will not exhibit this problem.

Models affected: C180, C160, C160L, B160L, and B132L workstations.


Lasi version 0 at 0xffd00000 found.

LED display at ffd0c000 registered

PS/2 keyboard controller at 0xffd08000 (irq 133) found, no device attached.

PS/2 psaux controller at 0xffd08100 (irq 133) found, no device attached.


sticonsole_init: searching for STI ROMs

ccio found U2 I/O MMU at 0xfff88000

io_io_high: 0xf6000000 io_io_low: 0xf2000000

ccio found U2 I/O MMU at 0xfff8a000

ccio: Cujo 2.0 bug needs a work around

io_io_high: 0xf2000000 io_io_low: 0xf1000000

Linux NET4.0 for Linux 2.4

Based upon Swansea University Computer Society NET3.039

Starting kswapd v1.8

pty: 256 Unix98 ptys configured

request_module[parport_lowlevel]: Root fs not mounted

lp: driver loaded but no devices found

RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize

loop: enabling 8 loop devices

Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled

ttyS00 at iomem 0xffd05800 (irq = 154) is a 16550A

ttyS01 at iomem 0xf2003800 (irq = 74) is a 16550A

Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)

Linux Tulip driver version 0.9.13 (January 2, 2001)

eth0: Digital DS21143 Tulip rev 48 at 0xff00, 00:60:B0:7D:D8:67, IRQ 64.

eth0:  MII transceiver #1 config 1000 status 7809 advertising 01e1.

parport_init_chip: initialize bidirectional-mode.

parport0: PC-style at 0xffd02800, irq 152 [PCSPP,TRISTATE]

lp0: using parport0 (interrupt-driven).

SCSI subsystem driver Revision: 1.00

sym53c8xx: at PCI bus 0, device 19, function 0

sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...

sym53c8xx: setting PCI_COMMAND_MASTER...(fix-up)

sym53c8xx: 53c875 detected 

sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 67

sym53c875-0: NCR clock is 40401KHz

sym53c875-0: ID 7, Fast-20, Parity Checking

sym53c875-0: on-chip RAM at 0xf2ffe000

sym53c875-0: restart (scsi reset).

sym53c875-0: Downloading SCSI SCRIPTS.

scsi0 : sym53c8xx - version 1.6b

sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 150, options 0

scsi1: Revision 0x2

scsi1: test 1 completed ok.

scsi1 : LASI/Simple 53c7xx

  Vendor: SEAGATE   Model: ST31230N          Rev: HP04

  Type:   Direct-Access                      ANSI SCSI revision: 02

Detected scsi disk sda at scsi1, channel 0, id 6, lun 0

SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)

Partition check:

 sda: sda1 sda2 sda3 sda4

Lasi Harmony Audio rev. 16 at 0xffd04000, using IRQ 146

md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27

md.c: sizeof(mdp_super_t) = 4096

NET4: Linux TCP/IP 1.0 for NET4.0

IP Protocols: ICMP, UDP, TCP

IP: routing cache hash table of 2048 buckets, 16Kbytes

TCP: Hash tables configured (established 16384 bind 32768)

IP-Config: Incomplete network configuration information.

NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.

VFS: Mounted root (ext2 filesystem) readonly.


INIT: version 2.78 booting
Loading /etc/console/boottime.kmap.gz
Activating swap...
Adding Swap: 124800k swap-space (priority -1)

Checking root file system...
Parallelizing fsck version 1.20 (25-May-2001)
/dev/sda3 was not cleanly unmounted, check forced.
/dev/sda3: |===                                                     |  5.8%
  
/dev/sda3: |=======                                                 /
11.7%   
/dev/sda3: |==========
 - 17.5%   
/dev/sda3: |=============
    \ 23.3%   
/dev/sda3: |================
       | 29.2%   
/dev/sda3: |====================
          / 35.0%   
/dev/sda3: |=======================
             - 40.8%   
/dev/sda3: |==========================
                \ 46.7%   
/dev/sda3: |=============================
                   | 52.5%   
/dev/sda3: |=================================
                      / 58.3%   
/dev/sda3:
|====================================                    - 64.2%

/dev/sda3: |=======================================                 \
70.0%   
/dev/sda3: |=========================================
 | 73.2%   
/dev/sda3: |===========================================
    / 76.9%   
/dev/sda3: |==============================================
       - 81.4%   
/dev/sda3:
|===============================================         \ 84.3%

/dev/sda3: |==================================================      |
90.0%   
/dev/sda3: |====================================================
 / 92.0%   
/dev/sda3:
                          
Unattached inode 4337


/dev/sda3: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
	(i.e., without -a or -p options)

fsck failed.  Please repair manually and reboot.  Please note
that the root file system is currently mounted read-only.  To
remount it read-write:

   # mount -n -o remount,rw /

CONTROL-D will exit from this shell and REBOOT the system.

Give root password for maintenance
(or type Control-D for normal startup): 
(none):~# fsck
Parallelizing fsck version 1.20 (25-May-2001)
(none):~# fsck /dev/sda3
Parallelizing fsck version 1.20 (25-May-2001)
e2fsck 1.20, 25-May-2001 for EXT2 FS 0.5b, 95/08/09
/dev/sda3 contains a file system with errors, check forced.
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Unattached inode 4337
Connect to /lost+found<y>? yes

Inode 4337 ref count is 2, should be 1.  Fix<y>? yes

Pass 5: Checking group summary information
Block bitmap differences:  -7236 +7316 -8635 +8648 +25426
Fix<y>? yes

Free blocks count wrong for group #0 (842, counted=911).
Fix<y>? yes

Free blocks count wrong for group #3 (57, counted=56).
Fix<y>? yes

Free blocks count wrong (49543, counted=49611).
Fix<y>? yes

Inode bitmap differences:  +4337
Fix<y>? yes

Free inodes count wrong for group #2 (1786, counted=1785).
Fix<y>? yes

Free inodes count wrong (21952, counted=21951).
Fix<y>? yes


/dev/sda3: ***** FILE SYSTEM WAS MODIFIED *****
/dev/sda3: 2529/24480 files (2.2% non-contiguous), 48019/97630 blocks
(none):~# y shutdown -r now

INIT: Switching to runlevel: 6
(none):~# 
INIT: Sending processes the TERM signal
Saving the System Clock time to the Hardware Clock...
hwclock: Could not open file with the clock adjustment parameters in it
(/etc/adjtime) for writing, errno=30: Read-only file system.
Drift adjustment parameters not updated.
Hardware Clock updated to Sun Nov  4 19:37:18 UTC 2001.
Stopping kernel log daemon: klogd.
Stopping system log daemon: syslogd.
Sending all processes the TERM signal... done.
Sending all processes the KILL signal... md: recovery thread got woken up ...

md: recovery thread finished ...

mdrecoveryd(9) flushing signals.

done.
Saving random seed... urandom stop: failed.
done.
Unmounting remote filesystems... done.
Deconfiguring network interfaces: /etc/network/ifstate: Read-only file system
done.
Deactivating swap... done.
Unmounting local filesystems... umount2: Invalid argument
umount: /dev/sda4: not mounted
done.
Rebooting... stopping all md devices.

Restarting system.

INIT C4CC
INIT C4CD
INIT 3002
TEST 30BC
INIT 30BC
TEST C0FF
INIT C30C
INIT 10CA
INIT C300
TEST 1030
TEST 1020
TEST 1021
TEST 1022
TEST 1023
TEST 1024
TEST 1025
TEST 1026
TEST 1027
TEST 1028
TEST 1029
TEST 102A
TEST 102B
TEST 102C
TEST 2010
TEST 2020
TEST 2021
TEST 2022
TEST 2023
TEST 2023
TEST 2030
TEST 2040
TEST 2060
TEST 2070
TEST 2071
TEST 2072
TEST 2073
TEST 2074
TEST 2080
TEST 10B1
INIT 103C
TEST 103E
INIT C30C
INIT 10CA
INIT C30C
INIT 10CA
INIT CD00
INIT CD08
TEST CD10
INIT CD10
TEST CD11
TEST CD12
TEST CD13
TEST CD14
TEST CD15
TEST CD1F
INIT CD1F
TEST CD1A
TEST CD1B
TEST CD1C
TEST CD1D
TEST CD20
INIT CD20
TEST CD21
TEST CD22
TEST CD23
TEST CD24
TEST CD25
TEST CD2A
TEST CD2B
TEST CD2C
TEST CD2D
TEST CD16
INIT CDFF
TEST C210
TEST C220
TEST C230
TEST C2D3
TEST C2D7
TEST C240
TEST C260
TEST C261
TEST C263
TEST C264
TEST C265
TEST C2E0
INIT C30C
INIT 10CA
TEST 4000
TEST 4020
TEST 4021
TEST 4021
TEST 4022
TEST 4022
TEST 4023
TEST 4023
TEST 4024
TEST 4024
TEST 4025
TEST 4025
TEST 4026
TEST 4026
TEST 4029
TEST 4029
TEST 402A
TEST 402A
TEST 402D
TEST 402D
TEST 4030
TEST 4040
TEST 4050
TEST 4060
TEST 2090
TEST 2050
TEST 10B2
TEST 10A0
TEST 10A1
TEST 10A2
TEST 10A3
TEST 10A4
TEST 10A5
INIT 103C
TEST 400E
INIT C30C
INIT 10CA
INIT C3FF
INIT C30C
INIT 10CA
INIT 8C20
INIT 8C21
INIT 8C22
INIT 8C10
INIT 8C11
INIT 8C12
TEST 301B
TEST 301C
INIT C653
INIT C400
INIT C440
INIT C642
WARN 80F4
WARN 9000
INIT C641
INIT C642
WARN 80F4
INIT C605
INIT C600
INIT C640



Firmware Version  5.0

Duplex Console IO Dependent Code (IODC) revision 1

----------------------------------------------------------------------------
--

   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved

---------------------------------------------------------------------------
---


  Processor   Speed            State           Coprocessor State  I/D Cache 

  ---------  --------   ---------------------  -----------------
-------------

      0      200 MHz    Active                 Functional         512 KB/1 MB


  Central Bus Speed (in MHz) :        120


  Available memory (bytes)    : 268435456

  Good memory required (bytes):   22343680 


  Primary boot path:    FWSCSI.6.0

  Alternate boot path:  SESCSI.5.0

  Console path:         GRAPHICS(4)

  Keyboard path:        PS2


------- Main Menu
-------------------------------------------------------------


        Command                         Description

        -------                         -----------

        BOot [PRI|ALT|<path>]           Boot from specified path

        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path

        SEArch [DIsplay|IPL] [<path>]   Search for boot devices


        COnfiguration [<command>]       Access Configuration menu/commands

        INformation [<command>]         Access Information menu/commands

        SERvice [<command>]             Access Service menu/commands


        DIsplay                         Redisplay the current menu

        HElp [<menu>|<command>]         Display help for menu or command

        RESET                           Restart the system

-------

Main Menu: Enter command > sea ipl


Searching for device(s) with bootable media...

This may take several minutes.


To discontinue search, press any key (termination may not be immediate).



   Path Number        Device Path              Device Type and Utilities

   -----------        -----------------        -------------------------

   P0                 SESCSI.6.0               SEAGATE ST31230N        

                                               IPL



Search terminated.



Main Menu: Enter command > bo p0

Interact with IPL (Y, N, Q)?> n

INIT C740

Booting... 
Boot IO Dependent Code (IODC) revision 153
INIT C780
INIT C30C
INIT 10CA


HARD Booted.
INIT C7FF
palo ipl 0.92 bame@c3k Wed Jun 20 11:49:11 MDT 2001

0/vmlinux32 2853588 bytes @ 0x48000

Partition Start(MB) End(MB) Id Type

1               1       9   f0 Palo

2              10     131   82 swap

3             132     227   83 ext2

4             228    1001   83 ext2


Command line: 'root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102'


Kernel: partition 3 file /boot/vmlinux-2.4.0

ext2 block size 1024
ext2_mount(partition 3) returns 0

ext2_open(/boot/vmlinux-2.4.0) = 3

ELF32 executable

Entry 00100000 first 00100000 n 4

Segment 0 load 00100000 size 1606948 mediaptr 0x1000

Segment 1 load 0028a000 size 468472 mediaptr 0x18a000

Segment 2 load 00300000 size 8192 mediaptr 0x1fd000

Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8

branching to kernel entry point 0x00100000

Set default PSW W bit to 0

Linux version 2.4.0-32 (root@slab) (gcc version 3.0 (Debian)) #1 Thu Jun
28 11:49:00 BST 2001

FP[0] enabled: Rev 0 Model 14

The 32-bit Kernel has started...

Determining PDC firmware type: Newer Box

model	000059d0 00000481 00000000 00000002 77ac21d7 100000f0 00000008
000000b2 000000b2

vers	00000400

cpuid	000001d0

CPUID	vers 14 rev 16

model	9000/782/C200+

Total Memory: 256 Mb

On node 0 totalpages: 65536

zone(0): 65536 pages.

zone(1): 0 pages.

zone(2): 0 pages.

PDC reported no LCD or LED.

Searching for devices...

Found devices:

1. Raven U/L2 Dino RS-232 (10) at 0xf2003000, versions 0x6, 0x0, 0x8c,
0x0, 0x0

2. Raven+ w SE FWSCSI Core BA (11) at 0xffd00000, versions 0x56, 0x0,
0x81, 0x0, 0x0,  additional addresses: 0xffd0c000 0xffc00000 

3. Raven+ w SE FWSCSI Core RS-232 (10) at 0xffd05000, versions 0x56, 0x0,
0x8c, 0x0, 0x0

4. Raven+ w SE FWSCSI Core SCSI (10) at 0xffd06000, versions 0x56, 0x0,
0x82, 0x0, 0x0

5. Raven+ w SE FWSCSI Core Centronics (10) at 0xffd02000, versions 0x56,
0x0, 0x74, 0x0, 0x0,  additional addresses: 0xffd01000 0xffd03000 

6. Raven+ w SE FWSCSU Core Audio (10) at 0xffd04000, versions 0x56, 0x4,
0x7b, 0x0, 0x0

7. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08000, versions 0x56,
0x0, 0x84, 0x0, 0x0

8. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08100, versions 0x56,
0x0, 0x84, 0x0, 0x0

9. U2-IOA BC GSC+ Port (7) at 0xf203f000, versions 0x501, 0x1, 0xc, 0x3, 0x0

10. U2-IOA BC GSC+ Port (7) at 0xf103f000, versions 0x501, 0x1, 0xc, 0x3, 0x0

11. Cujo PCI Bridge (13) at 0xf1000000, versions 0x682, 0x1, 0xa, 0x1,
0x0,  additional addresses: 0xf1800000 0xf6000000 

12. Dino PCI Bridge (13) at 0xf2000000, versions 0x680, 0x2, 0xa, 0x0,
0x0,  additional addresses: 0xf2800000 

13. U2-IOA BC Runway Port (12) at 0xfff88000, versions 0x580, 0xf, 0xb,
0x1, 0x50

14. U2-IOA BC Runway Port (12) at 0xfff8a000, versions 0x580, 0xf, 0xb,
0x1, 0x50

15. Raven U 200 (9000/780/C200) (0) at 0xfffa0000, versions 0x59d, 0x0,
0x4, 0x0, 0x81

16. Raven U 200 (1) at 0xfffb1000, versions 0x5d, 0x0, 0x9, 0x0, 0x0

That's a total of 16 devices.

CPU(s): 1 x PA8200 (PCX-U+) at 200.000000 MHz

Kernel command line: root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102

Console: colour dummy device 160x64

Calibrating delay loop... 398.95 BogoMIPS

Memory: 255236k available

Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)

Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)

Page-cache hash table entries: 65536 (order: 6, 262144 bytes)

Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)

POSIX conformance testing by UNIFIX

Dino version 3.0 (bridge mode) found at 0xf2000000



The GSCtoPCI (Dino hrev 2) bus converter found may exhibit

data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.

Systems shipped after Aug 20, 1997 will not exhibit this problem.

Models affected: C180, C160, C160L, B160L, and B132L workstations.


Lasi version 0 at 0xffd00000 found.

LED display at ffd0c000 registered

PS/2 keyboard controller at 0xffd08000 (irq 133) found, no device attached.

PS/2 psaux controller at 0xffd08100 (irq 133) found, no device attached.


sticonsole_init: searching for STI ROMs

ccio found U2 I/O MMU at 0xfff88000

io_io_high: 0xf6000000 io_io_low: 0xf2000000

ccio found U2 I/O MMU at 0xfff8a000

ccio: Cujo 2.0 bug needs a work around

io_io_high: 0xf2000000 io_io_low: 0xf1000000

Linux NET4.0 for Linux 2.4

Based upon Swansea University Computer Society NET3.039

Starting kswapd v1.8

pty: 256 Unix98 ptys configured

request_module[parport_lowlevel]: Root fs not mounted

lp: driver loaded but no devices found

RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize

loop: enabling 8 loop devices

Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled

ttyS00 at iomem 0xffd05800 (irq = 154) is a 16550A

ttyS01 at iomem 0xf2003800 (irq = 74) is a 16550A

Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)

Linux Tulip driver version 0.9.13 (January 2, 2001)

eth0: Digital DS21143 Tulip rev 48 at 0xff00, 00:60:B0:7D:D8:67, IRQ 64.

eth0:  MII transceiver #1 config 1000 status 7809 advertising 01e1.

parport_init_chip: initialize bidirectional-mode.

parport0: PC-style at 0xffd02800, irq 152 [PCSPP,TRISTATE]

lp0: using parport0 (interrupt-driven).

SCSI subsystem driver Revision: 1.00

sym53c8xx: at PCI bus 0, device 19, function 0

sym53c8xx: setting PCI_COMMAND_IO PCI_COMMAND_MEMORY...

sym53c8xx: setting PCI_COMMAND_MASTER...(fix-up)

sym53c8xx: 53c875 detected 

sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 67

sym53c875-0: NCR clock is 40401KHz

sym53c875-0: ID 7, Fast-20, Parity Checking

sym53c875-0: on-chip RAM at 0xf2ffe000

sym53c875-0: restart (scsi reset).

sym53c875-0: Downloading SCSI SCRIPTS.

scsi0 : sym53c8xx - version 1.6b

sim700: Configuring 53c710 (SCSI-ID 7) at ffd06100, IRQ 150, options 0

scsi1: Revision 0x2

scsi1: test 1 completed ok.

scsi1 : LASI/Simple 53c7xx

  Vendor: SEAGATE   Model: ST31230N          Rev: HP04

  Type:   Direct-Access                      ANSI SCSI revision: 02

Detected scsi disk sda at scsi1, channel 0, id 6, lun 0

SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)

Partition check:

 sda: sda1 sda2 sda3 sda4

Lasi Harmony Audio rev. 16 at 0xffd04000, using IRQ 146

md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27

md.c: sizeof(mdp_super_t) = 4096

NET4: Linux TCP/IP 1.0 for NET4.0

IP Protocols: ICMP, UDP, TCP

IP: routing cache hash table of 2048 buckets, 16Kbytes

TCP: Hash tables configured (established 16384 bind 32768)

IP-Config: Incomplete network configuration information.

NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.

VFS: Mounted root (ext2 filesystem) readonly.


INIT: version 2.78 booting
Loading /etc/console/boottime.kmap.gz
Activating swap...
Adding Swap: 124800k swap-space (priority -1)

Checking root file system...
Parallelizing fsck version 1.20 (25-May-2001)
/dev/sda3: clean, 2529/24480 files, 48019/97630 blocks
Calculating module dependencies... done.
Loading modules: 
Checking all file systems...
Parallelizing fsck version 1.20 (25-May-2001)
/dev/sda4: clean, 4658/99232 files, 15277/198280 blocks
Setting kernel variables.
Mounting local filesystems...
/dev/sda4 on /usr type ext2 (rw)
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: done.
]R
Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Sun Nov  4 14:41:36 EST 2001

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.

INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting internet superserver: inetd.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.

Now it really is out-to-lunch and pulling the AC is the only way I know to
shut it down.


Regards, Herb




From - Thu Nov 08 21:20:13 2018
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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Booting C200
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To: Herb Radford <herbr@magma.ca>
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On Mon, Nov 05, 2001 at 07:16:36AM -0500, Herb Radford wrote:
> OK, I found some stuff in the archive on the "Chassis Codes" and set up an
> old laptop as a terminal, disconnected the keyboard (and mouse) and booted.
> Now I tried this with the disk out of my 712/60 and the C200 is not hung.
> It proceeds through the boot process and then hangs on starting cron.

Hmm, the next thing would be the login prompt.  Has it really hung,
or is the inittab from your 712/60 set up to only issue a getty on
the graphical console?

Richard




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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: [parisc-linux] include - haeder files missing
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Hello !

I have the problem that I miss most of the header files under
/usr/include
or /usr/X11R6/include/X11 ?

Which binary packages I have to install (name of the packages).
I miss the default glibc-2 headers, the X11 headers, etc...

I cannot find out, which packages the h-files include. It is quite a
long
time to build and install glibc by myself on the 712/60, and it is much
too
long to build a Xfree on myself ...

With friendly regards
	Christoph P. 


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Hi Christoph,

	According to Helge Deller in his mail
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-June/012927.html
, you must install these packages if you want to see X running. Also,
you will need to do some modifs in XF86Config to make fbdev working and
your favorite and lite window manager.

Good luck, Thomas.
ESIEE Team



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On Mon, Nov 05, 2001 at 10:49:40PM +0100, Christoph Plattner wrote:
> Hello !
> 
> I have the problem that I miss most of the header files under
> /usr/include
> or /usr/X11R6/include/X11 ?
> 
> Which binary packages I have to install (name of the packages).
> I miss the default glibc-2 headers, the X11 headers, etc...
> 
> I cannot find out, which packages the h-files include. It is quite a
> long
> time to build and install glibc by myself on the 712/60, and it is much
> too
> long to build a Xfree on myself ...

For glibc headers, you need libc6-dev.

For X headers, basic ones are in xlibs-dev, at least.

Richard




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Matthew Wilcox writes...

> ok, i've moved the patches from /src to /patches.  there's a lot of
> really really old stuff in /src which i'm tempted to delete.  i don't
> think we need egcs-2.9-hppa-991112.tar.{gz,bz2} any more, for example.
> parisc-linux-src-19991019.tar.gz is probably not of much interest any more
> either (that's probably kernel 2.2 based...).  anyone still interested
> in dpkg-src-20000824.tar.gz either?

All nuked.

I also cleaned up some other stuff, but left anything I wasn't sure about.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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I've posted debs for testing at http://gluck.debian.org/~tausq/hppa/

The following are available:

binutils (with latest patches from Alan Modra)
gcc (with ldcw alignment patch)
glibc (with latest patches from Alan Modra)
python and apache rebuilt with new toolchain bits

these are all unofficial.... Chris/Ben will be uploading official
binutils/glibc. gcc will be uploaded as soon as the new binutils are in
incoming....

there're still some problems with exception handling for g++, but in
general these should work.... pls post to the list if you find
otherwise.

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/



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Hi,


I tried to do a dpkg-buildpackage. He seems to be complaining about the
"zip" package. Appearantly the build depends on this package. However, when
I tried a "apt-get install zip" the package was not found. Is there an alias
for this package, or do I also need to build this package from the
source-deb?

Thanks.

Kenneth
----- Original Message -----
From: "Thomas Bogendoerfer" <tsbogend@alpha.franken.de>
To: "kenneth westelinck" <kennywest1@hotmail.com>
Cc: "Kaj-Michael Lang" <milang@tal.org>; <parisc-linux@parisc-linux.org>
Sent: Monday, November 05, 2001 3:24 AM
Subject: Re: [parisc-linux] Compiling Mozilla on parisc-linux fails


> On Sun, Nov 04, 2001 at 07:46:23PM +0100, kenneth westelinck wrote:
> > Nope, same error (see the attached file). Any other ideas?
>
> how about using dpkg-buildpackage or applying the patches by hand ?
>
> Thomas.
>
> --
> Crap can work. Given enough thrust pigs will fly, but it's not necessary a
> good idea.                                 [ Alexander Viro on
linux-kernel ]
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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Hello,

On Mon, 05 Nov 2001, Randolph Chung wrote:

> I've posted debs for testing at http://gluck.debian.org/~tausq/hppa/
>=20
> The following are available:
>=20
> binutils (with latest patches from Alan Modra)
> gcc (with ldcw alignment patch)
> glibc (with latest patches from Alan Modra)
> python and apache rebuilt with new toolchain bits

<snippered>

I'm downloading these now, along with fresh debs. I am going to setup a
nfsroot again to test. Hopefully I can finally run ls on my 720 now? :-)

I notice that the latest kernel on http://ftp.parisc.linux.org/ is
linux-20011024.tar.gz. Are the snapshots lagging behind, or was this the
last working snapshot? :-)

Thanks for the hard work!

Regards,

Albert

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On Tue, Nov 06, 2001 at 09:04:04AM +0100, kenneth westelinck wrote:
> Hi,
> 
> 
> I tried to do a dpkg-buildpackage. He seems to be complaining about the
> "zip" package. Appearantly the build depends on this package. However, when
> I tried a "apt-get install zip" the package was not found. Is there an alias
> for this package, or do I also need to build this package from the
> source-deb?

Works for me:


root@slab:/build/palo/palo-0.95# apt-get install zip
Reading Package Lists... Done
Building Dependency Tree... Done
The following NEW packages will be installed:
  zip 
0 packages upgraded, 1 newly installed, 0 to remove and 52  not upgraded.
Need to get 101kB of archives. After unpacking 254kB will be used.
Get:1 http://non-us.debian.org unstable/non-US/main zip 2.30-3 [101kB]
Fetched 101kB in 0s (151kB/s)
Selecting previously deselected package zip.
(Reading database ... 25584 files and directories currently installed.)
Unpacking zip (from .../archives/zip_2.30-3_hppa.deb) ...
Setting up zip (2.30-3) ...


Maybe you need to apt-get update ?

Richard




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Hi Kenneth,
> 
> I tried to do a dpkg-buildpackage. He seems to be complaining about the
> "zip" package. Appearantly the build depends on this package. However, when
> I tried a "apt-get install zip" the package was not found. Is there an alias
> for this package, or do I also need to build this package from the
> source-deb?
The package "zip" is non-US. So, you have to add the non-US server in
your source.list and do a "apt-get source zip" and then build the
package. 

But, I will say that in
http://ftp.fr.debian.org/debian-non-US/pool/non-US/main/z/zip/ , you
have the hppa binary
http://ftp.fr.debian.org/debian-non-US/pool/non-US/main/z/zip/zip_2.30-3_hppa.deb

Since I do not know if it is very legal to do that. It is up to you :-)

After installing it, you will be able to start the building of
mozilla...

Good luck, Thomas.
ESIEE Team



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Hi all,

	GOOD NEWS
	The new packages seem to solve my troubles with Expect. It seems to be
some good patches in this version.

Thanks to all guys that made them available, Thomas.
ESIEE Team



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Subject: Re: [parisc-linux] Re: hppa binutils/glibc updates
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Thomas Marteau wrote:
> 
> Hi all,
> 
>         GOOD NEWS
>         The new packages seem to solve my troubles with Expect. It seems to be
> some good patches in this version.
> 
> Thanks to all guys that made them available, Thomas.
> ESIEE Team
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

Is it now safe again to do a apt-get upgrade?

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216



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> Is it now safe again to do a apt-get upgrade?

For the moment, the files are in gluck.debian.org/~tausq/hppa. But I
think they will soon be available via apt-get. But, I will wait for
doing upgrade because they are tested so not uploaded but I can be
wrong.

Thomas.
ESIEE Team



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Hello,

Things are looking good. I've been running tar and ls and whatnot. Fired
up screen to see what was going on. Seems I have a bit of a sick apt db,
and /usr/sbin/install-info just sits there sometimes, but I think most
of this can be attributed to a) nfsroot wierdness and b) a sick apt db.

I'll play around some more. Don't know when my local mirror is going to
have these packages, so I'm going to try to setup a mirror on one of my
machines again over the weekend and attempt a fresh install with the
3.0.15 boot-floppies.

Regards,

Albert

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FYI, I should have a new upload within the next day or two that includes
the patches from Randolph and Alan.  I'll let you know when the source
package is in incoming so that you can build them and get them installed
ASAP.

C

On Tue, 6 Nov 2001, Thomas Marteau wrote:

> Hi all,
> 
> 	GOOD NEWS
> 	The new packages seem to solve my troubles with Expect. It seems to be
> some good patches in this version.
> 
> Thanks to all guys that made them available, Thomas.
> ESIEE Team
> 
> 




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--Dxnq1zWXvFF0Q93v
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Hello,

I've managed to battle with apt a bit more. Some more stuff is now
installed. I broke screen though. Some nfs thing.

Anyway, next mini-hurdle:

init-2.05# apt-get update
Get:1 http://ftp.leg.uct.ac.za testing/main Packages [1139kB]
Get:Illegal instruction

dmesg output:

!!die_if_kernel: apt-get(3956): Privileged register - shouldn't happen! 11

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111
r0-3     00000000 401e43fc 401845ff 00045990
r4-7     401e5bfc faf00d10 faf00b90 0000000a
r8-11    0004d1b0 faf00948 0004d1d8 faf00ba8
r12-15   00000000 faf00b98 000c5210 00000000
r16-19   00000000 00000000 10348000 00045220
r20-23   00000002 401cec20 401845b0 00000000
r24-27   00000020 00045998 faf00d90 00040220
r28-31   faf00d10 00000005 faf00e00 00026f03
sr0-3    00000000 0000004c 00000000 0000004c
sr4-7    0000004c 0000004c 0000004c 0000004c

IASQ: 0000004c 0000004c IAOQ: 401cec23 401cec27
 IIR: 00040948    ISR: 0000004c  IOR: 00000000
 CPU:        0   CR30: 15bb0000 CR31: 10350000
 ORIG_R28: 00000001

Clearly it does happen. Mehehe. :-)

Should I decode this? I think I'll find instructions in the list
archive? Search for "decode"?

That's about it for now. Keep on rollin'! :-)

Regards,

Albert

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Subject: Re: [parisc-linux] Re: hppa binutils/glibc updates
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> For the moment, the files are in gluck.debian.org/~tausq/hppa. But I
> think they will soon be available via apt-get. But, I will wait for

Where can I find the sources+patches used ?

--
Kaj-Michael Lang , milang@tal.org




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Hello,

Forgot to add the kernel info to previous post...

init-2.05# uname -a
Linux bob 2.4.9-pa70 #5 Tue Nov 6 12:58:22 SAST 2001 parisc unknown

This is the latest snapshot on ftp.parisc-linux.org.

Regards,

Albert



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On Tue, Nov 06, 2001 at 03:54:28PM +0200, Albert Strasheim wrote:
> IASQ: 0000004c 0000004c IAOQ: 401cec23 401cec27
>  IIR: 00040948    ISR: 0000004c  IOR: 00000000
>  CPU:        0   CR30: 15bb0000 CR31: 10350000
>  ORIG_R28: 00000001
> 
> Clearly it does happen. Mehehe. :-)
> 
> Should I decode this? I think I'll find instructions in the list
> archive? Search for "decode"?

401cec23 is in a library... it might need to get recompiled too.

-- 
Revolutions do not require corporate support.



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Subject: Re: [parisc-linux] Re: hppa binutils/glibc updates
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On Tue, Nov 06, 2001 at 02:36:16PM +0000, Matthew Wilcox wrote:
> On Tue, Nov 06, 2001 at 03:54:28PM +0200, Albert Strasheim wrote:
> >      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > PSW: 00000000000001101111111100001111
> > r0-3     00000000 401e43fc 401845ff 00045990
> > r4-7     401e5bfc faf00d10 faf00b90 0000000a
> > r8-11    0004d1b0 faf00948 0004d1d8 faf00ba8
> > r12-15   00000000 faf00b98 000c5210 00000000
> > r16-19   00000000 00000000 10348000 00045220
> > r20-23   00000002 401cec20 401845b0 00000000
> > r24-27   00000020 00045998 faf00d90 00040220
> > r28-31   faf00d10 00000005 faf00e00 00026f03
> > sr0-3    00000000 0000004c 00000000 0000004c
> > sr4-7    0000004c 0000004c 0000004c 0000004c
> >
> > IASQ: 0000004c 0000004c IAOQ: 401cec23 401cec27
> >  IIR: 00040948    ISR: 0000004c  IOR: 00000000
> >  CPU:        0   CR30: 15bb0000 CR31: 10350000
> >  ORIG_R28: 00000001
> > 
> > Clearly it does happen. Mehehe. :-)
> > 
> > Should I decode this? I think I'll find instructions in the list
> > archive? Search for "decode"?
> 
> 401cec23 is in a library... it might need to get recompiled too.


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Original-X-From: running apt-get under gdb on my system, having installed the new
debs: 
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0x401cec20 <_ZSt8buf_cout>:     #   40948

00000000401ce000-00000000401e7000 rwxp 00000000000a7000 08:03 65295      /usr/lib/libstdc++.so.3.0.2

Albert, I assume you did install the new libstdc++3 as well?

apt-get works fine for me, btw (715/75 and a500), running apt 0.5.4


Albert's r2 was 401845ff:

0x401845f0 <_ZNKSt7num_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE6do_putES3_RSt8ios_basecm+64>: stw r21,-6c(sr0,sp)
0x401845f4 <_ZNKSt7num_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE6do_putES3_RSt8ios_basecm+68>: b,l 0x4018ec44 <_ZNSbIwSt11char_traitsIwESaIwEEC1Ev+1088>,rp
0x401845f8 <_ZNKSt7num_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE6do_putES3_RSt8ios_basecm+72>: stw r20,-34(sr0,sp)
0x401845fc <_ZNKSt7num_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE6do_putES3_RSt8ios_basecm+76>: copy r5,ret0
0x40184600 <_ZNKSt7num_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE6do_putES3_RSt8ios_basecm+80>: copy r4,r19

which looks reasonable...

0x4018ec44 <_ZNSbIwSt11char_traitsIwESaIwEEC1Ev+1088>:  addil -1800,r19,%r1
0x4018ec48 <_ZNSbIwSt11char_traitsIwESaIwEEC1Ev+1092>:  ldw 5e8(sr0,r1),r21
0x4018ec4c <_ZNSbIwSt11char_traitsIwESaIwEEC1Ev+1096>:  bv r0(r21)
0x4018ec50 <_ZNSbIwSt11char_traitsIwESaIwEEC1Ev+1100>:  ldw 5ec(sr0,r1),r19

a .plt lookup, or something.


Richard




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From: Richard Allen <ra@hp.is>
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Subject: [parisc-linux] B2000 :-)
Date: Tue, 6 Nov 2001 16:15:08 +0000
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Good news :-)

bofh:/etc/network# uname -a
Linux bofh 2.4.9-pa70 #1 Tue Nov 6 15:38:47 GMT 2001 parisc unknown

bofh:/etc/network# cat /proc/cpuinfo 
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8600 (PCX-W+)
cpu MHz         : 400.000000
model           : 9000/785/B2000
model name      : Kazoo W+
hversion        : 0x00005d00
sversion        : 0x00000481
I-cache         : 512 KB
D-cache         : 1024 KB (WB)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
BTLB            : not supported
bogomips        : 799.53
software id     : 2011377660


The kernel snapshot from late October crashed on this machine.
Now all runs smooth :-)   (with serial console and no IDE connected)


-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.



From - Thu Nov 08 21:20:15 2018
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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] Compiling Mozilla on parisc-linux fails
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Albert Strasheim writes...

> AFAIK, we're still missing a kernel-headers package for hppa; someone
> suggested simply install the sparc one. Don't know how well that works.

DO NOT use the Sparc ones. I'm not even sure why they're available for hppa. 
Just take the ones from cvs and put them in the right place. Someday we'll 
have a kernel-headers package for hppa...

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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On Tue, Nov 06, 2001 at 11:04:34AM -0700, Matt Taggart wrote:
> DO NOT use the Sparc ones. I'm not even sure why they're available for hppa. 
> Just take the ones from cvs and put them in the right place. Someday we'll 
> have a kernel-headers package for hppa...

the only people needing kernel headers are people who build glibc.
there is no reason for anyone else to have them installed.

-- 
Revolutions do not require corporate support.



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Subject: Re: [parisc-linux] Re: hppa binutils/glibc updates
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On Tue, Nov 06, 2001 at 04:16:13PM +0000, Richard Hirst wrote:
> apt-get works fine for me, btw (715/75 and a500), running apt 0.5.4

Hmm, having switch from chroot to real root on the a500, I'm
now seeing this same SIGILL.

Richard




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Subject: Re: [parisc-linux] Re: hppa binutils/glibc updates
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Hello,

Seems with all the apt db madness, libstdc++ didn't get installed the
first time. I installed it again, and things worked (better). There is
something strange going on with my nfsroot. Don't know if it's some nfs
setting or something... I get "too many symlinks" and "I/O" errors.

On Tue, 06 Nov 2001, Richard Hirst wrote:

> On Tue, Nov 06, 2001 at 04:16:13PM +0000, Richard Hirst wrote:
> > apt-get works fine for me, btw (715/75 and a500), running apt 0.5.4
> 
> Hmm, having switch from chroot to real root on the a500, I'm
> now seeing this same SIGILL.

Hehe. Can't help you there...

Anyway, I'm going to attempt a 3.0.15 boot-floppies install now. I
presume this is probably not going to work yet? We'll soon find out...

Seems the lifimage I crafted with palo is a bit ill. I'm going try to
kick my nfsroot into shape, and try to debootstrap onto my SCSI disk.

Regards,

Albert



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Hello,

Whoohooo. I bootstrapped my SCSI disk by hand (took a while; thank
goodness for Perl and sed).

And now... it just works! :-) Almost.

I can boot single-user mode with /sbin/init, but if I boot multi-user
(runlevel 2), everything starts fine up until cron comes up -- then
minicom goes Offline and the system is MIA. I currently still have
start-stop-daemon replaced with /bin/true, so I don't know why it's even
doing much. Now that I think about it, it might be something that comes
after cron. The getty perhaps? What needs to get configured here to make
it work with serial console?

bash-2.05# uname -a
Linux bob 2.4.9-pa70 #13 Wed Nov 7 00:25:29 SAST 2001 parisc unknown

apt-get install works. ls works. tar works. lynx works. Gonna try gcc
now. I think I can find some source to compile.

Thanks again Alan and Randolph. And thanks Matt. And thanks Debian. And
thanks HP... muhehehehehe.

Regards,

Albert

--G4iJoqBmSsgzjUCe
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Richard Allen wrote:
> The kernel snapshot from late October crashed on this machine.
> Now all runs smooth :-)   (with serial console and no IDE connected)

Very good...we've been running on c3k/j5k for quite some time
via serial console. JSM serial under suckyio and VM working earlier
this year.  USB and IDE are also part of suckyio and neither works
right now...Randolph Chung is hacking on USB and I've been hacking
on IDE but due to goofiness (and bugs) in suckyio, it's just not
working yet...

J5600 and similar boxes HPMC. Workaround in elroy code is available but
I just haven't have time to debug that. If someone in HP gave me a
couple of B2600's, I'd be alot more interested in working on this.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253



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Subject: [parisc-linux] 720/50 update
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Albert Strasheim <fullung@ilink.nis.za>
Cc: 
Bcc: 
Subject: Re: [parisc-linux] Re: hppa binutils/glibc updates
Reply-To: 
In-Reply-To: <20011107003802.A6253@dogbert.localdomain>

Hello,

I promise I'll be quiet shortly. :-)

Serial consoles now work. Just uncomment the relevant lines in
/etc/inittab:

# Example how to put a getty on a serial line (for a terminal)
#
T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100
T1:23:respawn:/sbin/getty -L ttyS1 9600 vt100

:-)

Two questions: when setting the hardware clock to the system clock, my
720 seems to hang. Is this a known issue? There seems to be a variable
one can set somewhere in the Debian init scripts to prevent this. I'll
look into it.

Then, some more interesting messages from /var/log/syslog:

Nov  7 02:12:01 bob kernel: Linux version 2.4.9-pa70 (s13640887@bach.sun.ac.za)
(gcc version 3.0.2 20010829 (prerelease)) #15 Wed Nov 7 02:07:35 SAST 2001
Nov  7 02:12:01 bob kernel: FP[0] enabled: Rev 3 Model 0
Nov  7 02:12:01 bob kernel: The 32-bit Kernel has started...
Nov  7 02:12:01 bob kernel: Determining PDC firmware type: Snake.

<snip>

Nov  7 02:12:07 bob /usr/sbin/cron[251]: (CRON) INFO (pidfile fd = 3)
Nov  7 02:12:07 bob /usr/sbin/cron[252]: (CRON) STARTUP (fork ok)
Nov  7 02:12:07 bob /usr/sbin/cron[252]: (CRON) INFO (Running @reboot jobs)
Nov  7 02:12:08 bob init: open(/dev/console): Input/output error
Nov  7 02:12:08 bob last message repeated 3 times
Nov  7 02:15:35 bob init: Trying to re-exec init

I installed binutils and it reconfigured libc6 here for some reason.

Now sshd goes bonkers a little later:

Nov  7 02:22:43 bob kernel: do_page_fault() pid=469 command='sshd' type=15 address=0x00000000
Nov  7 02:22:43 bob kernel:
Nov  7 02:22:43 bob kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Nov  7 02:22:43 bob kernel: PSW: 00000000000001001111111100001111
Nov  7 02:22:43 bob kernel: r0-3^I 00000000 00000000 4035da5b faf01860
Nov  7 02:22:43 bob kernel: r4-7^I 40378688 4002a09c 40028a64 faf00160
Nov  7 02:22:43 bob kernel: r8-11^I faf00158 00000001 00000001 00000001
Nov  7 02:22:43 bob kernel: r12-15^I faf00f94 faf00f8c faf00f86 faf00f7e
Nov  7 02:22:43 bob kernel: r16-19^I faf00f78 faf00f70 faf00f78 40378688
Nov  7 02:22:43 bob kernel: r20-23^I 00000001 40378688 4035da38 400288f8
Nov  7 02:22:43 bob kernel: r24-27^I faf00160 faf00158 00000001 0005cd5c
Nov  7 02:22:43 bob kernel: r28-31^I 4001c302 0000005e faf018e0 4000dd67
Nov  7 02:22:43 bob kernel: sr0-3^I 0000002b 0000002b 00000000 0000002b
Nov  7 02:22:43 bob kernel: sr4-7^I 0000002b 0000002b 0000002b 0000002b
Nov  7 02:22:43 bob kernel:
Nov  7 02:22:43 bob kernel: IASQ: 0000002b 0000002b IAOQ: 4035deeb 4035deef
Nov  7 02:22:43 bob kernel:  IIR: 0c201094    ISR: 0000002b  IOR: 00000000
Nov  7 02:22:43 bob kernel:  CPU:        0   CR30: 133c4000 CR31: 10330000
Nov  7 02:22:43 bob kernel:  ORIG_R28: 40378838

and again:

Nov  7 02:22:51 bob kernel: do_page_fault() pid=471 command='sshd' type=15 address=0x00000000
Nov  7 02:22:51 bob kernel:
Nov  7 02:22:51 bob kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Nov  7 02:22:51 bob kernel: PSW: 00000000000001001111111100001111
Nov  7 02:22:51 bob kernel: r0-3^I 00000000 00000000 4035da5b faf01860
Nov  7 02:22:51 bob kernel: r4-7^I 40378688 4002a09c 40028a64 faf00160
Nov  7 02:22:51 bob kernel: r8-11^I faf00158 00000001 00000001 00000001
Nov  7 02:22:51 bob kernel: r12-15^I faf00f94 faf00f8c faf00f86 faf00f7e
Nov  7 02:22:51 bob kernel: r16-19^I faf00f78 faf00f70 faf00f78 40378688
Nov  7 02:22:51 bob kernel: r20-23^I 00000001 40378688 4035da38 400288f8
Nov  7 02:22:51 bob kernel: r24-27^I faf00160 faf00158 00000001 0005cd5c
Nov  7 02:22:51 bob kernel: r28-31^I 4001c302 0000005e faf018e0 4000dd67
Nov  7 02:22:51 bob kernel: sr0-3^I 00000034 00000034 00000000 00000034
Nov  7 02:22:51 bob kernel: sr4-7^I 00000034 00000034 00000034 00000034
Nov  7 02:22:51 bob kernel:
Nov  7 02:22:51 bob kernel: IASQ: 00000034 00000034 IAOQ: 4035deeb 4035deef
Nov  7 02:22:51 bob kernel:  IIR: 0c201094    ISR: 00000034  IOR: 00000000
Nov  7 02:22:51 bob kernel:  CPU:        0   CR30: 133c4000 CR31: 10330000
Nov  7 02:22:51 bob kernel:  ORIG_R28: 40378838

Anything I should look into?

Regards,

Albert



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Hello Thomas and parisc-linux,

I'll take a look at it later. Don't know if I want to break my poor
system though.

Where do I find the .debs to get gcc going? I want to see if I can
compile a kernel for parisc, on parisc! :-)

Regards,

Albert



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From: Grant Grundler <grundler@puffin.external.hp.com>
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Albert Strasheim wrote:
> Now sshd goes bonkers a little later:

I'm seeing a similar failure on my a500 after installing
the libs/tools from tausq...maybe not all of them got install
right or something.

do_page_fault() pid=30365 command='sshd' type=15 address=0x00000000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     0000000000000000 0000000000000000 00000000404258cb 00000000faf02a18
r4-7     000000004043ee8c 000000004002a09c 0000000040028a64 00000000faf00180
r8-11    00000000faf00178 0000000000000001 0000000000000001 0000000000000001
r12-15   00000000faf02154 00000000faf0214c 00000000faf02146 00000000faf0213e
r16-19   00000000faf02138 00000000faf02130 00000000faf02138 000000004043ee8c
r20-23   0000000000000001 000000004043ee8c 00000000404258a8 00000000400288f8
r24-27   00000000faf00180 00000000faf00178 0000000000000001 000000000005cd5c
r28-31   0000000040020302 0000000000000367 00000000faf02a98 000000004000dd67
sr0-3    00000000003b4180 00000000003b4180 0000000000000000 00000000003b4180
sr4-7    00000000003b4180 00000000003b4180 00000000003b4180 00000000003b4180

IASQ: 00000000003b4180 00000000003b4180 IAOQ: 0000000040425ceb 0000000040425cef
 IIR: 0c201094    ISR: 00000000003b4180  IOR: 0000000000000000
 CPU:        0   CR30: 00000000d6de0000 CR31: 0000000010430000
 ORIG_R28: 0000000000000000

gsyprf11:/home/grundler/tausq_tools# cksum *.deb
1114988557 141528 cpp-3.0_3.0.2-3_hppa.deb
1927521351 48988 fixincludes_3.0.2-3_hppa.deb
642572873 1556684 g++-3.0_3.0.2-3_hppa.deb
2439162186 1512948 gcc-3.0_3.0.2-3_hppa.deb
1556764740 1323150 gobjc-3.0_3.0.2-3_hppa.deb
183295544 3092004 libc6-dbg_2.2.4-5.1_hppa.deb
3189185516 2821668 libc6-dev_2.2.4-5.1_hppa.deb
3206792636 1288104 libc6-pic_2.2.4-5.1_hppa.deb
3456372709 1458650 libc6-prof_2.2.4-5.1_hppa.deb
81332045 4180314 libc6_2.2.4-5.1_hppa.deb
3444036471 32182 libgcc1_3.0.2-3_hppa.deb
3159110615 75220 libobjc1_3.0.2-3_hppa.deb
596324476 706532 libstdc++3-dbg_3.0.2-3_hppa.deb
1990895142 619846 libstdc++3-dev_3.0.2-3_hppa.deb
1076307807 267246 libstdc++3_3.0.2-3_hppa.deb
2468458388 57770 nscd_2.2.4-5.1_hppa.deb
1353008780 35892 protoize_3.0.2-3_hppa.deb
646825021 412622 python1.5-dev_1.5.2-19_hppa.deb
1167294820 25608 python1.5-gdbm_1.5.2-19_hppa.deb
1705531577 27230 python1.5-mpz_1.5.2-19_hppa.deb
2662708058 60932 python1.5-tk_1.5.2-19_hppa.deb
2712725009 979300 python1.5_1.5.2-19_hppa.deb

grant



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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Re: hppa binutils/glibc updates
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To: Albert Strasheim <fullung@ilink.nis.za>
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On Wed, Nov 07, 2001 at 12:38:02AM +0200, Albert Strasheim wrote:
> after cron. The getty perhaps? What needs to get configured here to make
> it work with serial console?

Enable the relevant line in /etc/inittab, something like

T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100

and add ttyS0 to /etc/securetty to enable root logins.

Richard




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Hello,

apt is mostly fine now, but when I added the following line to
/etc/apt/sources.list:

deb-src ftp://archive.sun.ac.za/debian testing main contrib non-free

it died again:

...
Get:1 ftp://archive.sun.ac.za testing/main Sources [609kB]
Ign ftp://archive.sun.ac.za testing/main Release
Get:Illegal instruction

Nov  7 12:26:33 bob kernel: !!die_if_kernel: apt-get(2805): Privileged
register - shouldn't happen! 11
Nov  7 12:26:33 bob kernel:
Nov  7 12:26:33 bob kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Nov  7 12:26:33 bob kernel: PSW: 00000000000001101111111100001111
Nov  7 12:26:33 bob kernel: r0-3^I 00000000 401e43fc 401845ff 00045990
Nov  7 12:26:33 bob kernel: r4-7^I 401e5bfc bff00dd0 bff00c50 0000000a
Nov  7 12:26:33 bob kernel: r8-11^I 0004a5f0 bff00a08 0004a618 bff00c68
Nov  7 12:26:33 bob kernel: r12-15^I 00000000 bff00c58 000c56f0 00000000
Nov  7 12:26:33 bob kernel: r16-19^I 00000000 000255c8 00014000 00045220
Nov  7 12:26:33 bob kernel: r20-23^I 00000002 401cec20 401845b0 00000000
Nov  7 12:26:33 bob kernel: r24-27^I 00000020 00045998 bff00e50 00040220
Nov  7 12:26:33 bob kernel: r28-31^I bff00dd0 00000005 bff00ec0 00026f03
Nov  7 12:26:33 bob kernel: sr0-3^I 00000000 000001b2 00000000 000001b2
Nov  7 12:26:33 bob kernel: sr4-7^I 000001b2 000001b2 000001b2 000001b2
Nov  7 12:26:33 bob kernel:
Nov  7 12:26:33 bob kernel: IASQ: 000001b2 000001b2 IAOQ: 401cec23 401cec27
Nov  7 12:26:33 bob kernel:  IIR: 00040948    ISR: 000001b2  IOR: 00000000
Nov  7 12:26:33 bob kernel:  CPU:        0   CR30: 1527c000 CR31: 10330000
Nov  7 12:26:33 bob kernel:  ORIG_R28: 00000001

I have the ftp_proxy environment variable set, if that makes any
difference. I'll try to do it without the proxy shortly; just need to
setup my "gateway" box right so that the 720/50 can transparently access
the outside world.

Relevant packages versions:

apt            0.5.4
apt-utils      0.5.4
binutils       2.11.92.0.10-2
cpp            3.0.2-10
cpp-3.0        3.0.2-3
g++            3.0.2-10
g++-3.0        3.0.2-3
gcc-3.0        3.0.2-3
gcc-3.0-base   3.0.2-3 (got it from http.us.debian.org)
gzip           1.2.4-33
libc6          2.2.4-5.1

bob:~# uname -a
Linux bob 2.4.9-pa70 #16 Wed Nov 7 02:08:44 SAST 2001 parisc unknown

Regards,

Albert



From - Thu Nov 08 21:20:16 2018
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From: Jochen Friedrich <jochen@scram.de>
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Subject: Re: [parisc-linux] EISA interrupts
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Hi Daniel,

> In order to use an ISA card you will have to specify the IRQ as edge triggerd
> on the kernel command line options  eisa_irq_edge.
> Use eisa_irq_edge=9,10 to set IRQ 9 and 10 to edge mode.

Cool stuff !

I just merged it into the current CVS version and tested it on my 720...

I *sometimes* works. Somehow, maybe every 3 boot, my token ring card
starts up OK and interrupts are generated. The rest of the cases, the card
is detected, but fails to open and no interrupt is recorded in
/proc/interrupts. Is there anything special about the 720, like an
additional register which might have a random state at bootup time?

However, when trying to send IP traffic to the adapter, Linux immediately
crashes in csum_partial(). Looks like some more work is required to fix
the token ring driver.

Cheers,
Jochen




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Hi Daniel,

> In order to use an ISA card you will have to specify the IRQ as edge triggerd
> on the kernel command line options  eisa_irq_edge.
> Use eisa_irq_edge=9,10 to set IRQ 9 and 10 to edge mode.

Cool stuff !

I just merged it into the current CVS version and tested it on my 720...

I *sometimes* works. Somehow, maybe every 3 boot, my token ring card
starts up OK and interrupts are generated. The rest of the cases, the card
is detected, but fails to open and no interrupt is recorded in
/proc/interrupts. Is there anything special about the 720, like an
additional register which might have a random state at bootup time?

However, when trying to send IP traffic to the adapter, Linux immediately
crashes in csum_partial(). Looks like some more work is required to fix
the token ring driver.

Cheers,
Jochen





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Hello,

I rebuilt apt this afternoon (took a good 2 hours :-)), and now it
segfaults on startup. The following pops into /var/log/syslog:

Nov  7 16:00:08 bob kernel: do_page_fault() pid=7111 command='apt-get' type=15 address=0xffffffec
Nov  7 16:00:08 bob kernel: vm_start = 0xbff00000, vm_end = 0xbff02000
Nov  7 16:00:08 bob kernel: 
Nov  7 16:00:08 bob kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Nov  7 16:00:08 bob kernel: PSW: 00000000000001000000000100001111
Nov  7 16:00:08 bob kernel: r0-3^I 00000000 00031854 4006189b bff00ad0
Nov  7 16:00:08 bob kernel: r4-7^I bff00ac0 401211b8 0004bb6b bff00ab0
Nov  7 16:00:08 bob kernel: r8-11^I 0004bb00 bff009b0 00000000 bff00aa0
Nov  7 16:00:08 bob kernel: r12-15^I 00000000 00049100 000c94d0 00000000
Nov  7 16:00:08 bob kernel: r16-19^I 00000000 000255c8 00014000 401211b8
Nov  7 16:00:08 bob kernel: r20-23^I 00000000 0002cdd4 0002cdd4 0004b7f0
Nov  7 16:00:08 bob kernel: r24-27^I bff00ae0 00000029 bff00ac0 000429c0
Nov  7 16:00:08 bob kernel: r28-31^I bff00ab0 0000003c bff00c00 40009ae7
Nov  7 16:00:08 bob kernel: sr0-3^I 00000000 00000024 00000000 00000024
Nov  7 16:00:08 bob kernel: sr4-7^I 00000024 00000024 00000024 00000024
Nov  7 16:00:08 bob kernel: 
Nov  7 16:00:08 bob kernel: IASQ: 00000024 00000024 IAOQ: 400618af 400618b3
Nov  7 16:00:08 bob kernel:  IIR: 4a963fd9    ISR: 00000024  IOR: ffffffec
Nov  7 16:00:08 bob kernel:  CPU:        0   CR30: 10fc0000 CR31: 10330000
Nov  7 16:00:08 bob kernel:  ORIG_R28: 403d5a84

ORIG_R28 looks more or less like the value in traps.c, IIRC. Package
versions:

gcc            3.0.2-10
gcc-3.0        3.0.2-3
g++            3.0.2-10
g++-3.0        3.0.2-3
gcc-3.0-base   3.0.2-3
libstdc++3     3.0.2-3
libc6          2.2.4-5.1
debconf        1.0.17
debhelper      3.0.48
binutils       2.11.92.0.10-2

Another weird one is when I click on any button in xman (and some other
apps in xbase-clients; displaying on my i386 machine), it simply dies
with:

Error: Unresolved inheritance operation

Not quite sure if this is because I'm missing some package, or because
of something more serious.

Regards,

Albert



From - Thu Nov 08 21:20:16 2018
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Booting my C200 probably requires a newer kernel. Are there any more recent
ISO's than the one available for 0.9.2?
Are there any more detailed instructions than those for PALO?
I have a burner, but I have not yet set up a compile environment so I'm not
sure I can get there easily.

Not that it has to be easy, I've been compiling x86 kernels to suite my
ever-changing systems since kernel 0.9. I'm just having a bit of a problem
with Debian's apt and stuff.

Regards, Herb




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Hi all,

I just apply evms-0.2.3 patches against hppa kernel 2.4.9-pa78.
This kernel compiles, boots and runs also fine on my b180.

But when I launch evms_vgscan the kernel crash with following message:

...
Kernel Fault: Code=15 regs=124fc6c0 (Addr=faf00918)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 10117000 1018c314 00000000
r4-7     10085e40 00000001 00000000 faf00908
r8-11    17b57c80 124bf300 00023674 faf00788
r12-15   00000000 ffffffff 000c2310 00000000
r16-19   00000000 000255c8 00014000 00023d60
r20-23   00000200 00000000 00000200 102ac400
r24-27   00000200 124fc808 00000000 1029c010
r28-31   00000000 00000000 124fc6c0 102ac420
sr0-3    00000000 00000000 00000000 000002d5
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1018c350 1018c354
 IIR: 48fa0020    ISR: 00000000  IOR: faf00918
 CPU:        0   CR30: 124fc000 CR31: 10348000
 ORIG_R28: 124fc508

a "grep 1018c3 /boot/System.map"
1018c394 t evms_ioctl_cmd_get_minor

I would like to debug this by obtaining a core dump of the kernel after the 
reboot but I do not know how? (I did not find back the mail explaining how to do 
it in detail)

Thanks in advance for help,
        Joel




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On Wed, Nov 07, 2001 at 03:56:16PM +0100, joel.soete@freebel.net wrote:
> IASQ: 00000000 00000000 IAOQ: 1018c350 1018c354
>  IIR: 48fa0020    ISR: 00000000  IOR: faf00918
>  CPU:        0   CR30: 124fc000 CR31: 10348000
>  ORIG_R28: 124fc508
> 
> a "grep 1018c3 /boot/System.map"
> 1018c394 t evms_ioctl_cmd_get_minor
> 
> I would like to debug this by obtaining a core dump of the kernel after the 
> reboot but I do not know how? (I did not find back the mail explaining how to do 
> it in detail)

1018c350 is before 1018c394, so it's actually in the previous function.

-- 
Revolutions do not require corporate support.



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Quoting Matthew Wilcox <willy@debian.org>:

> On Wed, Nov 07, 2001 at 03:56:16PM +0100, joel.soete@freebel.net wrote:
> > IASQ: 00000000 00000000 IAOQ: 1018c350 1018c354
> >  IIR: 48fa0020    ISR: 00000000  IOR: faf00918
> >  CPU:        0   CR30: 124fc000 CR31: 10348000
> >  ORIG_R28: 124fc508
> > 
> > a "grep 1018c3 /boot/System.map"
> > 1018c394 t evms_ioctl_cmd_get_minor
> > 
> > I would like to debug this by obtaining a core dump of the kernel
> after the 
> > reboot but I do not know how? (I did not find back the mail explaining
> how to do 
> > it in detail)
> 
> 1018c350 is before 1018c394, so it's actually in the previous function.

Well ... in System.map I found:

1018bfc4 t evms_ioctl_cmd_get_logical_disk
1018c088 t evms_ioctl_cmd_get_logical_disk_info
1018c1c8 t evms_ioctl_cmd_sector_io
1018c394 t evms_ioctl_cmd_get_minor
1018c494 t evms_ioctl_cmd_get_volume_data

So it should be in 'evms_ioctl_cmd_sector_io', is it right?

Thank Matthew,
    Joel

> 
> -- 
> Revolutions do not require corporate support.
> 
> 


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On Wed, Nov 07, 2001 at 04:13:38PM +0100, joel.soete@freebel.net wrote:
> So it should be in 'evms_ioctl_cmd_sector_io', is it right?

Correct.

-- 
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joel.soete@freebel.net wrote:
> I would like to debug this by obtaining a core dump of the kernel after the 
> reboot but I do not know how? (I did not find back the mail explaining how
> to do it in detail)

Linux (from Linus' tree) does not support core dumps.
I'm only aware of coredump support patch from SGI.

The folks that manage HPUX core dump tools expresed interest
in porting the same tools to parisc-linux...assuming
we would dump core in the same format.

If a spec published for that, would anyone commit to implementing it?

FWIW, I think much of the work is portable to ia64-linux in case
that would help justify an HP project to pick up/fund this work.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253



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On Wed, Nov 07, 2001 at 09:05:04AM -0500, Herb Radford wrote:
> Booting my C200 probably requires a newer kernel. Are there any more recent
> ISO's than the one available for 0.9.2?

not to my knowledge. 0.9.3 was due out just now, but there is trouble
with the toolchains, people have been warned to not 'apt-get update'
etc., so it's been delayed.

> Are there any more detailed instructions than those for PALO?

I think that most of your questions will be answered if you look in the
archives for this list - the first install is something all of us have
gone through. If it's not there, and not in the docs, feel free to ask!

> I have a burner, but I have not yet set up a compile environment so I'm not
> sure I can get there easily.

I installed my C200 without a parisc-compile environment - you don't
need one. Just make sure your serial terminal is operational and you
have the right cable.

> 
> Not that it has to be easy, I've been compiling x86 kernels to suite my
> ever-changing systems since kernel 0.9. I'm just having a bit of a problem
> with Debian's apt and stuff.
> 
There have been some 'ultra-short' apt 'get started' instructions posted
to this list also. Again, browsing the archives is worth your while.

Good luck,
Jurriaan
-- 
Firstly, when confronted with the twisted strangeness of variable numbers of
arguments, the problem returns... and he who has not kept his faith strong by
repeated practice shall surely fall to this subtle trap.
	Henry Spencer - The Ten Commandments for C programmers (Annotated Ed.)
GNU/Linux 2.4.13-ac7 on Debian/Alpha 64-bits 988 bogomips load:0.00 0.28 0.82



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Hi all,
> 
> > Are there any more detailed instructions than those for PALO?
If going trough the READMEs and the mailing lists is not enough, you can
go there:
 http://mkhppa1.esiee.fr/palo.html
OR
 http://mkhppa1.esiee.fr/parisc-linux-boot/parisc-linux-boot/index.html

Good luck, Thomas.
ESIEE Team



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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] EISA stuff now in CVS
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Hi all,
I've just committed Daniel Engstrom's <5116@telia.com> EISA patches
to CVS head. Get yourself 2.4.9-pa79 and try yourself :-)

I don't have any EISA cards, so I tested it here with an
old ISA NE2000 NIC clone in my 715/64:

dmesg:
ne.c:v1.10 9/23/94 Donald Becker (becker@scyld.com)
Last modified Nov 1, 2000 by Paul Gortmaker
NE*000 ethercard probe at 0x340: 08 00 00 50 11 13
eth0: NE2000 found at 0x340, using IRQ 10.

pa64:~# ping www.kde.org
PING www.kde.org (213.203.58.36): 56 data bytes
64 bytes from 213.203.58.36: icmp_seq=0 ttl=237 time=149.7 ms
64 bytes from 213.203.58.36: icmp_seq=1 ttl=237 time=108.7 ms

--- www.kde.org ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 108.7/129.2/149.7 ms

pa64:~# cat /proc/interrupts
 IRQ      count         Region    ISR
  2:          0            EISA  cascade
 10:       1645            EISA  NE2000
 32:      93357       PA-CPU-00  timer
 33:       8865       PA-CPU-00  lasi
 39:       1647       PA-CPU-00  wax
 69:          1            Lasi  keyboard, psaux
 86:       7852            Lasi  lasi710
 88:          0            Lasi  parport0
 90:       1008            Lasi  serial
117:       1645             Wax  EISA
125:          0             Wax  wax_hil_nmi
126:          2             Wax  hil

Greetings,
Helge



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Hello Thomas,

I'm still doing some tests, but it seems to have fixed my problem (at
least with the apt I rebuilt from source).

Thanks a bunch!

Regards,

Albert

On Wed, 07 Nov 2001, Thomas Marteau wrote:

> Hi Albert,
> 
> 	It seems that export LD_BIND_NOW=1 can correct the bug for apt-get.
> Can you test?
> 
> Thomas.
> ESIEE Team



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Hello,

Been fiddling with man some more. I'm going to rebuild man-db from
source to see what there is to find. Here's the crash from man:

Nov  8 08:13:03 bob kernel: !!die_if_kernel: man(1485): Privileged
operation - shouldn't happen! 10
Nov  8 08:13:03 bob kernel:
Nov  8 08:13:03 bob kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Nov  8 08:13:03 bob kernel: PSW: 00000000000001001111111100001111
Nov  8 08:13:03 bob kernel: r0-3^I 00000000 40029470 4000bf07 00000081
Nov  8 08:13:03 bob kernel: r4-7^I 4010b4d8 00039248 000114c0 4002a2c8
Nov  8 08:13:03 bob kernel: r8-11^I 00010e40 40028cf4 bff00bc8 00011a9c
Nov  8 08:13:03 bob kernel: r12-15^I 00000000 00000080 00010570 0001130c
Nov  8 08:13:03 bob kernel: r16-19^I 40028cf4 0000000c 00000000 40028cf4
Nov  8 08:13:03 bob kernel: r20-23^I 00000001 00038e58 00000000 00000000
Nov  8 08:13:03 bob kernel: r24-27^I 00038e58 00000081 000114b4 00020ce8
Nov  8 08:13:03 bob kernel: r28-31^I 00000081 00000041 bff00d00 4000a487
Nov  8 08:13:03 bob kernel: sr0-3^I 00000438 00000438 00000000 00000438
Nov  8 08:13:03 bob kernel: sr4-7^I 00000438 00000438 00000438 00000438
Nov  8 08:13:03 bob kernel:
Nov  8 08:13:03 bob kernel: IASQ: 00000438 00000438 IAOQ: 4000be13 4000be17
Nov  8 08:13:03 bob kernel:  IIR: 04000000    ISR: 00000438  IOR: 00000000
Nov  8 08:13:03 bob kernel:  CPU:        0   CR30: 155fc000 CR31: 10330000
Nov  8 08:13:03 bob kernel:  ORIG_R28: 401ea73c

This probably explains why xman isn't working too well. Strangely
enough, it doesn't cause a similiar crash.

Would localizing the crashing/non-crashing code help towards figuring
out this problem?

Regards,

Albert


On Wed, 07 Nov 2001, Albert Strasheim wrote:

<snip>

> Another weird one is when I click on any button in xman (and some other
> apps in xbase-clients; displaying on my i386 machine), it simply dies
> with:
>=20
> Error: Unresolved inheritance operation

<snip>

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Randolph Chung is currently testing a new glibc that should cure most,
if not all, of your problems.  The problem was that the lazy linking
code in ld.so used r28 without saving it.  r28 is used by functions
to return values;  In the case of a function returning a struture, on
function entry r28 points to an area of memory to hold the structure.
So trashing r28 meant that functions returning structures scribbled them
into the wrong part of memory.  In fact, they overwrote the procedure
linkage table.

Alan




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Subject: Re: [parisc-linux] 720/50 update
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In reference to a message from Alan Modra, dated Nov 08:
> Randolph Chung is currently testing a new glibc that should cure most,
> if not all, of your problems.  The problem was that the lazy linking

Alan's new patch seems to be working. I've updated the debs at
http://gluck.debian.org/~tausq/hppa/

With these new debs I'm not seeing the apt-get crashes anymore.

I've passed the patch to Ben Collins for the next glibc build.

Please let us know if you are still seeing crashes after using the
updated debs. (Apologies -- but the version numbers are the same as the
previous ones)

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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From: Albert Strasheim <fullung@ilink.nis.za>
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Hello Randolph, Alan and parisc-linux,

I've grabbed the new debs from the site. Here's how things went:

0. Using old apt with old libs, things seemed to work initially, but by
   yesterday around lunch-time, everything was dying (bigger database
   maybe?).

1. Using apt I built from scratch yesterday, _without_ LD_BIND_NOW=1
   set, I get a segmentation fault (apt-cache and apt-get). /var/log/syslog
   contains the following:

Nov  8 16:08:28 bob kernel: do_page_fault() pid=436 command='apt-get'
type=15 address=0xffffffec
Nov  8 16:08:28 bob kernel: vm_start = 0xbff00000, vm_end = 0xbff02000
Nov  8 16:08:28 bob kernel:
Nov  8 16:08:28 bob kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Nov  8 16:08:28 bob kernel: PSW: 00000000000001000000000100001111
Nov  8 16:08:28 bob kernel: r0-3^I 00000000 00031854 4006189b bff00ad0
Nov  8 16:08:28 bob kernel: r4-7^I bff00ac0 401211b8 0004bb6b bff00ab0
Nov  8 16:08:28 bob kernel: r8-11^I 0004bb00 bff009b0 00000000 bff00aa0
Nov  8 16:08:28 bob kernel: r12-15^I 00000000 00049100 000d00d0 00000000
Nov  8 16:08:28 bob kernel: r16-19^I 00000000 000255c8 00014000 401211b8
Nov  8 16:08:28 bob kernel: r20-23^I 00000000 0002cdd4 0002cdd4 0004b7f0
Nov  8 16:08:28 bob kernel: r24-27^I bff00ae0 00000029 bff00ac0 000429c0
Nov  8 16:08:28 bob kernel: r28-31^I bff00ab0 0000003c bff00c00 40009ae7
Nov  8 16:08:28 bob kernel: sr0-3^I 00000000 0000003f 00000000 0000003f
Nov  8 16:08:28 bob kernel: sr4-7^I 0000003f 0000003f 0000003f 0000003f
Nov  8 16:08:28 bob kernel:
Nov  8 16:08:28 bob kernel: IASQ: 0000003f 0000003f IAOQ: 400618af 400618b3
Nov  8 16:08:28 bob kernel:  IIR: 4a963fd9    ISR: 0000003f  IOR: ffffffec
Nov  8 16:08:28 bob kernel:  CPU:        0   CR30: 1327c000 CR31: 10330000
Nov  8 16:08:28 bob kernel:  ORIG_R28: 403d5a84

2. Using original apt, with new libs, apt-cache search, apt-get remove,
   and apt-get install all seem to work. apt-get update from http sites
   seems to work. apt-get update with deb-src lines in the sources.list
   produces an Illegal instruction error right after wgetting the
   relevant file. /var/log/syslog contains the following:

Nov  8 16:04:59 bob kernel: !!die_if_kernel: apt-get(367): Privileged
register - shouldn't happen! 11
Nov  8 16:04:59 bob kernel:
Nov  8 16:04:59 bob kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Nov  8 16:04:59 bob kernel: PSW: 00000000000001101111111100001111
Nov  8 16:04:59 bob kernel: r0-3^I 00000000 401e43fc 401845ff 00045990
Nov  8 16:04:59 bob kernel: r4-7^I 401e5bfc bff00f90 bff00e10 0000000a
Nov  8 16:04:59 bob kernel: r8-11^I 0004e100 bff00bc8 0004e128 bff00e28
Nov  8 16:04:59 bob kernel: r12-15^I 00000000 bff00e18 000cf2d0 00000000
Nov  8 16:04:59 bob kernel: r16-19^I 00000000 000255c8 00014000 00045220
Nov  8 16:04:59 bob kernel: r20-23^I 00000002 401cec20 401845b0 00000000
Nov  8 16:04:59 bob kernel: r24-27^I 00000020 00045998 bff01010 00040220
Nov  8 16:04:59 bob kernel: r28-31^I bff00f90 00000005 bff01080 00026f03
Nov  8 16:04:59 bob kernel: sr0-3^I 00000000 00000083 00000000 00000083
Nov  8 16:04:59 bob kernel: sr4-7^I 00000083 00000083 00000083 00000083
Nov  8 16:04:59 bob kernel:
Nov  8 16:04:59 bob kernel: IASQ: 00000083 00000083 IAOQ: 401cec23 401cec27
Nov  8 16:04:59 bob kernel:  IIR: 00040948    ISR: 00000083  IOR: 00000000
Nov  8 16:04:59 bob kernel:  CPU:        0   CR30: 12728000 CR31: 10330000
Nov  8 16:04:59 bob kernel:  ORIG_R28: 00000001

3. Using the apt I built from sources, _with_ LD_BIND_NOW=1 set, 
   everything seems to work fine, including fetching deb-src.

4. Using original apt _with_ LD_BIND_NOW=1 set, everything also seems to
   work; most notably the fetching of deb-src works.

bob:/home/fullung# uname -a
Linux bob 2.4.9-pa70 #5 Thu Nov 8 08:08:50 UTC 2001 parisc unknown

I built this kernel using the most recent gcc on this box yesterday.

For the rest I have all the latest packages from gluck -- everything
from about a day ago, and today's libc6, libc6-dev and nscd.

That's about. :-)

Regards,

Albert

On Thu, 08 Nov 2001, Randolph Chung wrote:

> In reference to a message from Alan Modra, dated Nov 08:
> > Randolph Chung is currently testing a new glibc that should cure most,
> > if not all, of your problems.  The problem was that the lazy linking
> 
> Alan's new patch seems to be working. I've updated the debs at
> http://gluck.debian.org/~tausq/hppa/
> 
> With these new debs I'm not seeing the apt-get crashes anymore.
> 
> I've passed the patch to Ben Collins for the next glibc build.
> 
> Please let us know if you are still seeing crashes after using the
> updated debs. (Apologies -- but the version numbers are the same as the
> previous ones)

Regards,

Albert



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Hello,

On Thu, 08 Nov 2001, Albert Strasheim wrote:

<snip>

> 2. Using original apt, with new libs, apt-cache search, apt-get remove,
>    and apt-get install all seem to work. apt-get update from http sites
>    seems to work. apt-get update with deb-src lines in the sources.list
>    produces an Illegal instruction error right after wgetting the
>    relevant file. /var/log/syslog contains the following:

<snip>

FYI, Tried deb-src update both with http and ftp now. Doesn't make a
difference; still see the same Illegal instruction.

> That's about. :-)

That's about it. :-)

Regards,

Albert



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From: Albert Strasheim <fullung@ilink.nis.za>
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Me again. :-)

At Thomas's suggestion I downloaded all the packages again and installed
from scratch. Things seem to be working perfectly now. :-)

man also works. xman still reports the same error though.

Regards,

Albert



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OK, I got a hold of another CD drive, this time a DEC workstation CD 
(its funky in some wierd way), its got parity always on and you can 
switch between DEC workstation and PC mode.  Whatever that is.  The main 
thing is that it works and boots the .9.2 CD I've got.  However, after 
the penguin appears at the top and it does init and stuff, right after 
it lists the CD when its doing SCSi init stuff, it give me:

scsi bus is being reset for host 1 channel 0
ncr53c8xx_reset: pid-0 resetflags=2 serial_number=18 
serial_number_at_timeout=18
ncr53c720-0: restart(scsi reset)
SCSI host 1 abort (pid0) timed out - resetting.

This was with the 2 2.1GB FW differential SCSI drive attached and 
functioning.  When I took both of those drive out and have JUST the CD 
drive in the system, it boots fine and gets to the install program, with 
the welcome screen and the Continue button.  But it froze at this first 
screen for some reason.  Any ideas?

Also, can it boot with FW differential SCSI devices connected?  Or do I 
have to put some narrow drives in there?

Thanks,
Dan




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Hello!!

I have big problems running HpUX (10.20) on my mashine, and becouse I have
no cdrom in it, I cant reinstall it ether, even that I have the
installcdrom (no use of it).

Is there any nice documentation on how to install Pa-Risc-linux on my
hp712, over the network, from my Linux-mashine (slackware)?
If there is'nt, somebody that knows of how to do it?
Else... somebody that knows of how to install NetBSD or OpenBSD over
network, from my linux-mashine, or maby a nice documentation on the net,
or maby that they can send to me?

Please reply to my email: xfs@linux.se, becouse I am not on this list.

Thanks!

// Johan Andersson
    <xfs@linux.se>




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Subject: Re: [parisc-linux] Installing PARISC-Linux on my 712, over network...
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Hi,

This is the document I used to net-boot my 712/60:
http://mkhppa1.esiee.fr/parisc-linux-boot/parisc-linux-boot.html

Also, you'll need a good lifimage. I got mine from:
ftp://ftp.debian.org/debian/dists/testing/main/disks-hppa/3.0.15-2001-10-18/
lifimage

I think these links hould get you up and running ;-)


regards,

Kenneth
----- Original Message -----
From: <xfs@linux.se>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Friday, November 09, 2001 10:44 AM
Subject: [parisc-linux] Installing PARISC-Linux on my 712, over network...


> Hello!!
>
> I have big problems running HpUX (10.20) on my mashine, and becouse I have
> no cdrom in it, I cant reinstall it ether, even that I have the
> installcdrom (no use of it).
>
> Is there any nice documentation on how to install Pa-Risc-linux on my
> hp712, over the network, from my Linux-mashine (slackware)?
> If there is'nt, somebody that knows of how to do it?
> Else... somebody that knows of how to install NetBSD or OpenBSD over
> network, from my linux-mashine, or maby a nice documentation on the net,
> or maby that they can send to me?
>
> Please reply to my email: xfs@linux.se, becouse I am not on this list.
>
> Thanks!
>
> // Johan Andersson
>     <xfs@linux.se>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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Xref: news.gmane.org gmane.linux.ports.parisc:12963

Thanx! I am going to take a look on it!
I hope I get it to run, becouse I want to use my pa-risc.
It has stand and collected dust now for long...

> Hi,
>
> This is the document I used to net-boot my 712/60:
> http://mkhppa1.esiee.fr/parisc-linux-boot/parisc-linux-boot.html
>
> Also, you'll need a good lifimage. I got mine from:
> ftp://ftp.debian.org/debian/dists/testing/main/disks-hppa/3.0.15-2001-10-18/
> lifimage
>
> I think these links hould get you up and running ;-)
>
>
> regards,
>
> Kenneth
> ----- Original Message -----
> From: <xfs@linux.se>
> To: <parisc-linux@lists.parisc-linux.org>
> Sent: Friday, November 09, 2001 10:44 AM
> Subject: [parisc-linux] Installing PARISC-Linux on my 712, over network...
>
>
> > Hello!!
> >
> > I have big problems running HpUX (10.20) on my mashine, and becouse I have
> > no cdrom in it, I cant reinstall it ether, even that I have the
> > installcdrom (no use of it).
> >
> > Is there any nice documentation on how to install Pa-Risc-linux on my
> > hp712, over the network, from my Linux-mashine (slackware)?
> > If there is'nt, somebody that knows of how to do it?
> > Else... somebody that knows of how to install NetBSD or OpenBSD over
> > network, from my linux-mashine, or maby a nice documentation on the net,
> > or maby that they can send to me?
> >
> > Please reply to my email: xfs@linux.se, becouse I am not on this list.
> >
> > Thanks!
> >
> > // Johan Andersson
> >     <xfs@linux.se>
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
>
>





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Hi Johan and all,

	I'll just add that PA-RISC/Linux boot HOWTO is now an official manual
published on linuxdoc.org :) but the latest version will stay on
http://www.esiee.fr/puffin because of the speed of update during the
kernel development.

http://www.linuxdoc.org/HOWTO/PA-RISC-Linux-Boot-HOWTO/index.html

Regards, Thomas.
ESIEE Team



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Checking it out now, wget-powah  =).

Thanks alot...
Now I have collected alot of documentation, now it is just to let my
33.6-modem download the system-things and try to install everything  =).

> Hi Johan and all,
>
> 	I'll just add that PA-RISC/Linux boot HOWTO is now an official manual
> published on linuxdoc.org :) but the latest version will stay on
> http://www.esiee.fr/puffin because of the speed of update during the
> kernel development.
>
> http://www.linuxdoc.org/HOWTO/PA-RISC-Linux-Boot-HOWTO/index.html
>
> Regards, Thomas.
> ESIEE Team
>
>





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Subject: Re: [parisc-linux] More recent ISO's
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Quoth Thomas Marteau:
> > > Are there any more detailed instructions than those for PALO?
> If going trough the READMEs and the mailing lists is not enough, you can
> go there:
>  http://mkhppa1.esiee.fr/palo.html
> OR
>  http://mkhppa1.esiee.fr/parisc-linux-boot/parisc-linux-boot/index.html
> 
> Good luck, Thomas.
> ESIEE Team

Or from here, now:

  http://linuxdoc.org/HOWTO/PA-RISC-Linux-Boot-HOWTO/

Congratulations on getting 'published', Thomas.  =)

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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From: Albert Strasheim <fullung@ilink.nis.za>
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Subject: [parisc-linux] palo problems
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Hello parisc-linux,

I can't quite get palo to boot a kernel from disk. My bootup progresses
as follows:

(c) Copyright.  Hewlett-Packard Company.  1991.
All rights reserved.

PDC ROM rev. 2.3
IODC ROM rev. 2.2
96 MB of memory configured and tested.

Selecting a system to boot.
To stop selection process, press and hold the ESCAPE key.

Selection process stopped.

Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.3.0                 QUANTUM PD425S
P1                    scsi.2.0                 MICROP  1528-15MD1066702
P2                    lan.0000e8-e5fdeb.0.0    dogbert

b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu: s

Searching for Devices with Bootable Media.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type and Utilities
----------------------------------------------------------------------------

P0                    scsi.2.0                 MICROP  1528-15MD1066702
                                                   IPL
P1                    lan.0000e8-e5fdeb.3.6    dogbert
                                                   IPL

Enter boot selection, (h)elp, or e(x)it: p0

Trying scsi.2.0
Boot path initialized.
Attempting to load IPL.

Hard booted.
palo ipl 0.95 root@geordi Tue Oct 16 20:04:23 MDT 2001
0/vmlinux32 2975629 bytes @ 0x48000
Partition Start(MB) End(MB) Id Type
1               1      18   f0 Palo
2              19    1163   83 ext2
3            1164    1279   82 swap

Command line: 'HOME=3D/ TERM=3Dlinux console=3Dtty'

Kernel: partition 2 file /boot/vmlinux
ext2 block size 4096
ext2_mount(partition 2) returns 0
Opening /boot/vmlinux
ext2_open(/boot/vmlinux) =3D 3
ELF32 executable
Entry 00100000 first 00100000 n 6
Segment 0 load 00100000 size 1604596 mediaptr 0x1000
Segment 1 load 00288000 size 273544 mediaptr 0x189000
Segment 2 load 002cc000 size 355324 mediaptr 0x1cc000
Segment 3 load 00324000 size 8192 mediaptr 0x223000
Segment 4 load 00328000 size 32768 mediaptr 0x225000
Segment 5 load 00363a3c size 83120 mediaptr 0x22da3c
branching to kernel entry point 0x00100000

Then it seems to hang there. If I boot from the network, everything
works fine (and fast).

My /etc/palo.conf contains the following:

bob:/home/fullung# cat /etc/palo.conf=20
--commandline=3D2/boot/vmlinux HOME=3D/ TERM=3Dlinux console=3Dtty
--recoverykernel=3D/boot/vmlinux
--init-partitioned=3D/dev/sda

Relevant fdisk output:

bob:/home/fullung# fdisk /dev/sda

Command (m for help): p

Disk /dev/sda: 42 heads, 61 sectors, 1023 cylinders
Units =3D cylinders of 2562 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sda1   *         1        15     19184+  f0  Linux/PA-RISC boot
/dev/sda2            16       930   1172115   83  Linux
/dev/sda3           931      1023    119133   82  Linux swap

bob:/home/fullung# uname -a
Linux bob 2.4.9-pa79 #1 Fri Nov 9 13:36:26 UTC 2001 parisc unknown

Thanks.

Regards,

Albert

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Hi Albert,

	Try not define the EARLY_BOOTUP_DEBUG in arch/parisc/kernel/pdc_cons.c 
-If you see anything, it means that you are not in your kernel=> It
could a palo or palo<->kernel. 
-If you see something, try to find a solution ;-)

Regards, Thomas.



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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] palo problems
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Hi,
  As you've captured this output, I guess you are using serial console?
If so

> --commandline=2/boot/vmlinux HOME=/ TERM=linux console=tty

is wrong.  You want console=ttyS0

In fact, you don't actually need to specify console= at all these
days, palo will append the right string based on where you run it
from.

Richard




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Subject: [parisc-linux] smbfs doesn't build
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Hello,

Trying to build smbfs on 2.4.9-pa79 yields the following error:

ioctl.c: In function `smb_ioctl':
ioctl.c:36: `__kernel_old_uid_t' undeclared (first use in this function)
ioctl.c:36: (Each undeclared identifier is reported only once
ioctl.c:36: for each function it appears in.)
make[3]: *** [ioctl.o] Error 1
make[3]: Leaving directory `/usr/src/linux/fs/smbfs'
make[2]: *** [first_rule] Error 2
make[2]: Leaving directory `/usr/src/linux/fs/smbfs'
make[1]: *** [_subdir_smbfs] Error 2
make[1]: Leaving directory `/usr/src/linux/fs'
make: *** [_dir_fs] Error 2

I poked around the source code a bit -- it seems some macro to convert
(or not convert) between 32-bit and 64-bit UIDs is missing.

In related matters, what's happening with getting devfs fixed? :-) I'll
be happy to extensively test any patches.

Regards,

Albert



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In reference to a message from Albert Strasheim, dated Nov 09:
> Hello,
> 
> Trying to build smbfs on 2.4.9-pa79 yields the following error:
> 
> ioctl.c: In function `smb_ioctl':
> ioctl.c:36: `__kernel_old_uid_t' undeclared (first use in this function)
> ioctl.c:36: (Each undeclared identifier is reported only once
> ioctl.c:36: for each function it appears in.)
> make[3]: *** [ioctl.o] Error 1
> make[3]: Leaving directory `/usr/src/linux/fs/smbfs'
> make[2]: *** [first_rule] Error 2
> make[2]: Leaving directory `/usr/src/linux/fs/smbfs'
> make[1]: *** [_subdir_smbfs] Error 2
> make[1]: Leaving directory `/usr/src/linux/fs'
> make: *** [_dir_fs] Error 2

i have a patch in my tree that adds back some of these things that are
in other archs but not in parisc. will clean it up and post RSN.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Daniel Williams wrote:
> scsi bus is being reset for host 1 channel 0
> ncr53c8xx_reset: pid-0 resetflags=2 serial_number=18 
> serial_number_at_timeout=18
> ncr53c720-0: restart(scsi reset)
> SCSI host 1 abort (pid0) timed out - resetting.

uhm...shouldn't that be the sym53c8xx driver?
I only ask because I couldn't find ncr53c8xx_reset in the sym53c8xx driver.

grant



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Actually, fairly sure it was this, I copied it down verbatim.  Though I 
could check again.

ncr53c8xx_reset: pid=0 resetflags=2 serial_number=18 
serial_number_at_timeout=18

It kept doing all these lines, except increasing the serial_number and 
serial_number_at_timeout from 18 to whenever I stopped it, which I think 
was 35 at one point.  I could check again, but I distinctly remember 
seeing BOTH the ncr53c8xx and ncr53c720-0 stuff on the console.  This is 
the graphical console install, not the serial console install.

0.9.2 ISO stock.

Dan

On Friday, November 9, 2001, at 11:30 AM, Grant Grundler wrote:

> Daniel Williams wrote:
>> scsi bus is being reset for host 1 channel 0
>> ncr53c8xx_reset: pid-0 resetflags=2 serial_number=18
>> serial_number_at_timeout=18
>> ncr53c720-0: restart(scsi reset)
>> SCSI host 1 abort (pid0) timed out - resetting.
>
> uhm...shouldn't that be the sym53c8xx driver?
> I only ask because I couldn't find ncr53c8xx_reset in the sym53c8xx 
> driver.
>
> grant




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Hi!

I got one of those 712/60 these days. No fun at all:-( The machine came
properly installed with Debian GNU/Linux and there seems to be nothing
that really needs to be hacked... Well, the box is missing it's floppy
drive. Can I attach a standard floppy drive ripped off an ordinary PC?

Further on, I'm currently compiling massively.

I can't compile the "normal" floppy.o module. Is there a special one, or
is ./include/asm/floppy.h a bit hosed (kernel sources are from CVS)?

MfG, JBG

-- 
Jan-Benedict Glaw   .   jbglaw@lug-owl.de   .   +49-172-7608481
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Hi Helge,

> I don't have any EISA cards, so I tested it here with an
> old ISA NE2000 NIC clone in my 715/64:
> 
> dmesg:
> ne.c:v1.10 9/23/94 Donald Becker (becker@scyld.com)
> Last modified Nov 1, 2000 by Paul Gortmaker
> NE*000 ethercard probe at 0x340: 08 00 00 50 11 13
> eth0: NE2000 found at 0x340, using IRQ 10.
> 
> pa64:~# ping www.kde.org
> PING www.kde.org (213.203.58.36): 56 data bytes
> 64 bytes from 213.203.58.36: icmp_seq=0 ttl=237 time=149.7 ms

Pretty strange you're getting any interrupts, as with the current patch 
the EISA PIC isn't initialized, at all...

Index: gsc/eisa.c
===================================================================
RCS file: /var/cvs/linux/drivers/gsc/eisa.c,v
retrieving revision 1.12
diff -u -r1.12 eisa.c
--- gsc/eisa.c	2001/11/08 00:12:40	1.12
+++ gsc/eisa.c	2001/11/09 21:07:19
@@ -336,8 +336,6 @@
 	}
 	pcibios_register_hba(&eisa_dev.hba);
 
-	init_eisa_pic();
-	
 	result = request_irq(dev->irq, eisa_irq, SA_SHIRQ, "EISA", NULL);
 	if (result) {
 		printk(KERN_ERR "EISA: request_irq failed!\n");
@@ -352,6 +350,7 @@
 	irq_region[0] = &eisa_irq_region;
 	
 	EISA_bus = 1;
+	init_eisa_pic();
 	
 	return 0;
 }




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On Friday 09 November 2001 22:08, Jochen Friedrich wrote:
> Pretty strange you're getting any interrupts, as with the current patch
> the EISA PIC isn't initialized, at all...

Hi Jochen,
Daniel's newest patch is in CVS only. Update your tree or download the whole
kernel source from ftp://parisc-linux.org/cvs

Greetings,
Helge



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> > Helge:
> > I don't have any EISA cards, so I tested it here with an
> > old ISA NE2000 NIC clone in my 715/64:
> >
> > dmesg:
> > ne.c:v1.10 9/23/94 Donald Becker (becker@scyld.com)
> > Last modified Nov 1, 2000 by Paul Gortmaker
> > NE*000 ethercard probe at 0x340: 08 00 00 50 11 13
> > eth0: NE2000 found at 0x340, using IRQ 10.
>
> On Fri, 9 Nov 2001, Jochen Friedrich wrote:
> Pretty strange you're getting any interrupts, as with the current patch
> the EISA PIC isn't initialized, at all...

Not that strange, I'm thinking. Lots of ISA cards have the IO and IRQ
hard-coded on them, either via jumper or logically. I'd guess this NIC is
advertising it's presence and resources used, so the system is picking up
on it. Impressive that it's working, though...

BTW, how stands the 'apt-get update' fixes? Are we safe to go, or do we
need another day or two for things to spread about?




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> > On Fri, 9 Nov 2001, Jochen Friedrich wrote:
> > Pretty strange you're getting any interrupts, as with the current patch
> > the EISA PIC isn't initialized, at all...
>
> Not that strange, I'm thinking. Lots of ISA cards have the IO and IRQ
> hard-coded on them, either via jumper or logically. I'd guess this NIC is
> advertising it's presence and resources used, so the system is picking up
> on it. Impressive that it's working, though...

It's even better :-)
This card uses the ne2.c driver and this driver probes all adresses 0x300, 0x320, 0x340, ...
and then uses Linux's irq autodetection code. Nothing hardcoded here.

Helge



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From: Jochen Friedrich <jochen@scram.de>
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Hi Helge,

> Hi Jochen,
> Daniel's newest patch is in CVS only. Update your tree or download the whole
> kernel source from ftp://parisc-linux.org/cvs

That's what i did and checked. 

However in the CVS version, init_eisa_pic() is called before EISA_bus is 
set to 1, so all the initialisation isn't really written to the chip...

That's what my patch fixes.

Cheers,
Jochen




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On Friday 09 November 2001 23:47, Jochen Friedrich wrote:
> Hi Helge,
>
> > Hi Jochen,
> > Daniel's newest patch is in CVS only. Update your tree or download the
> > whole kernel source from ftp://parisc-linux.org/cvs
>
> That's what i did and checked.
>
> However in the CVS version, init_eisa_pic() is called before EISA_bus is
> set to 1, so all the initialisation isn't really written to the chip...
>
> That's what my patch fixes.

Ooops....
Yes, I mixed that up. I'll check and fix that.
Now I'm wondering myself how it could have worked here. Maybe I just was lucky 
and the PDC in the 715/64 already did the proper initialization itself ?

Helge




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willy, Fleedwood, and I committed an initial merge of 2.4.14
to CVS.  IT HAS NOT BEEN TESTED.  If you need a good version
use the tag V249_PA79 or LINUS_2414_PREMERGE which are probably identical.
Fix bugs, have fun :-)

For drivers/net/pcnet32.c we adopted upstream which probably isn't
right (helge?)

	-Paul Bame



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From: Rafael Herrera <vze26vn8@verizon.net>
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Subject: [parisc-linux] SCSI errors after installing 0.9.2 on a 715/75
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Hello,

I'm trying again to get a working system on this 715/75. Installation of 
the base system using the 0.9.2 CD went well.

I was performing an "apt-get upgrade" and got this erro messages:


# apt-get upgrade
Reading Package Lists... Done
Building Dependency Tree... Done
The following packages have been kept back
   bsdutils dpkg gzip ipchains logrotate mount nano net-tools ppp procps
   sysvinit util-linux
63 packages upgraded, 0 newly installed, 0 to remove and 12  not upgraded.
Need to get 1536kB/18.1MB of archives. After unpacking 270kB will be freed.
Do you want to continue? [Y/n] y
Get:1 ftp://ftp.us.debian.org unstable/main console-tools 1:0.2.3-23.2 
[262kB]
Get:2 ftp://ftp.us.debian.org unstable/main modutils 2.4.10-4 [249kB] 

Get:3 ftp://ftp.us.debian.org unstable/main apt-utils 0.5.4 [210kB] 

Get:4 ftp://ftp.us.debian.org unstable/main tasksel 1.11 [33.2kB] 

Get:5 ftp://ftp.us.debian.org unstable/main base-config 1.29 [114kB] 

Get:6 ftp://ftp.us.debian.org unstable/main dhcp-client 2.0pl5-6.1 
[194kB]
Get:7 ftp://ftp.us.debian.org unstable/main fdutils 5.3-3.3 [359kB] 

Get:8 ftp://ftp.us.debian.org unstable/main modconf 0.2.37 [114kB] 

Fetched 1536kB in 31s (48.7kB/s) 

scsi0: Serious error, sstat0 = 04
scsi0: Chip register contents:
  (script[0] at virt 10050000, bus 50000)
  00  sien:  af  sdid:  40  scntl1:20  scntl0:d4
  04  socl:  06  sodl:  c9  sxfer: 00  scid:  80
  08  sbcl:  00  sbdl:  00  sidl:  00  sfbr:  00
  0C  sstat2:0e  sstat1:20  sstat0:00  dstat: 00
  10
  14  ctest3:df  ctest2:31  ctest1:03  ctest0:00
  18  ctest7:00  ctest6:eb  ctest5:00  ctest4:00
  1C  temp:  00000000
  20              ctest8:ff  istat: 06  dfifo: 04
  24  dbc:   0e000006  dnad:  00056cde  dsp:   00056038
  30  dsps:  00056cde
  34  dmode: 80
  38  dcntl: 80  dwt:   00  dien:  1d
  3C
scsi0: Unexpected stacked interrupt, istat 06, sstat0 08, dstat 00
scsi0: Failed to handle interrupt.  Failing commands and resetting SCSI 
bus and chip
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00056038 (script[0x180e]), dsps = 00056cde, target = 0
scsi0: Failing command for ID6
scsi0: Unable to send Bus Device Reset for target 6
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 04, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 00057458 (script[0x1d16]), dsps = 00057468, target = 0
SCSI disk error : host 0 channel 0 id 6 lun 0 return code = 2
  I/O error: dev 08:03, sector 1450072
  I/O error: dev 08:03, sector 1450080
  I/O error: dev 08:03, sector 16
  I/O error: dev 08:03, sector 25200
  I/O error: dev 08:03, sector 1048608
  I/O error: dev 08:03, sector 1059400
  I/O error: dev 08:03, sector 1311040
  I/O error: dev 08:03, sector 1324576
  I/O error: dev 08:03, sector 1450320
  I/O error: dev 08:03, sector 1450568
  I/O error: dev 08:03, sector 1450816
  I/O error: dev 08:03, sector 1451064
  I/O error: dev 08:03, sector 1451312 

  I/O error: dev 08:03, sector 1451560 

  I/O error: dev 08:03, sector 1451808 

 

 
         Is there a newer kernel image I can use that has a more stable 
SCSI? If so where can I retrieve it and how to replace the one installed 
from the CD in the hard drive.

Thanks.
-- 
      Rafael




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Jan-Benedict Glaw wrote:
> Well, the box is missing it's floppy drive.
> Can I attach a standard floppy drive ripped off an ordinary PC?

I haven't tried it but I think so.
Please try and tell us.
If you fry the box I'll replace it.

> Further on, I'm currently compiling massively.
> 
> I can't compile the "normal" floppy.o module. Is there a special one, or
> is ./include/asm/floppy.h a bit hosed (kernel sources are from CVS)?

Not ported yet. You need to add some code to "publish" the floppy device's
existance similar to serial port for lasi and kluge floppy support into
dma.h. At least what I recall off the top of my head.

grant



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Helge Deller wrote:
> Now I'm wondering myself how it could have worked here. Maybe I just
> was lucky 
> and the PDC in the 715/64 already did the proper initialization itself ?

lucky most likely. PDC/IODC don't  use interrupts.
I've been told all firmware IO is polled.

grant



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Hi!

On Fri, 9 Nov 2001, Grant Grundler wrote:

> Jan-Benedict Glaw wrote:
> > Well, the box is missing it's floppy drive.
> > Can I attach a standard floppy drive ripped off an ordinary PC?
> 
> I haven't tried it but I think so.
> Please try and tell us.
> If you fry the box I'll replace it.

I've tried that on 712/80. Connected a standard PC floppy, didn't burn
the box but didn't get any signs of life from the floppy either. The
floppy LED never goes on, not even in the initial bootup stage. I've then
tried writing different values to the floppy registers through lasi,
following the controller docs, trying to reset it or at least get to do
something. No success. Main floppy status register always returns 0 - no
good. Given any ideas I might try to do it again.

Best regards,

Jurij.





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Hi,

when trying to compile the new 2.2.14 based parisc tree, i get the
following error:

gcc -D__KERNEL__ -I/usr/src/linux/include -Wall -Wstrict-prototypes
-Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common
-D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1
-mschedule=7100    -c -o sd.o sd.c
{standard input}: Assembler messages:
{standard input}:583: Error: Invalid operands
{standard input}:607: Error: Invalid operands
make[3]: *** [sd.o] Error 1

Cheers,
Jochen




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Xref: news.gmane.org gmane.linux.ports.parisc:12987

Hi,

> when trying to compile the new 2.2.14 based parisc tree, i get the
> following error:

To follow up myself:

Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  gcc            3.0.2-10       The GNU C compiler.
ii  binutils       2.11.92.0.10-1 The GNU assembler, linker and binary

Cheers,
Jochen




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Xref: news.gmane.org gmane.linux.ports.parisc:12988

> when trying to compile the new 2.2.14 based parisc tree, i get the
> following error:
> 
> gcc -D__KERNEL__ -I/usr/src/linux/include -Wall -Wstrict-prototypes
> -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common
> -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
> -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1
> -mschedule=7100    -c -o sd.o sd.c
> {standard input}: Assembler messages:
> {standard input}:583: Error: Invalid operands
> {standard input}:607: Error: Invalid operands
> make[3]: *** [sd.o] Error 1

Don't know if this is the fix but it fixed an invalid operand error in
the gcc mainline code:

2001-10-31  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* pa.c (output_move_double): Fix typo in double load.

--- pa.c.save	Wed Oct 31 11:24:25 2001
+++ pa.c	Wed Oct 31 12:47:53 2001
@@ -1979,7 +1979,7 @@
 		 save a register file writeback)  */
 	      if (GET_CODE (addr) == POST_INC)
 		return "{ldws|ldw},ma 8(%1),%0\n\tldw -4(%1),%R0";
-	      return "{ldws|ldw},ma -8(%1),%0\n\tldw 12(%1),%R0}";
+	      return "{ldws|ldw},ma -8(%1),%0\n\tldw 12(%1),%R0";
 	    }
 	  else
 	    {

If that isn't it, dump the assembler output with '-S' and look at the
lines causing the error.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Xref: news.gmane.org gmane.linux.ports.parisc:12989

On Sat, Nov 10, 2001 at 11:28:48PM +0100, Jochen Friedrich wrote:
> when trying to compile the new 2.2.14 based parisc tree, i get the
> following error:

top of CVS (2.4.14) is currently broken. It will probably take a few days
to shake out the bugs (merge was on friday).

If you have a PA2.0 CPU, turn on CONFIG_PA20 that should fix the compile
error.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Current Debian still broken?
Date: Sun, 11 Nov 2001 00:19:10 +0100
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On Saturday 10 November 2001 23:56, John David Anglin wrote:
> > when trying to compile the new 2.2.14 based parisc tree, i get the
> > following error:
> >
> > gcc -D__KERNEL__ -I/usr/src/linux/include -Wall -Wstrict-prototypes
> > -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common
> > -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
> > -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1
> > -mschedule=7100    -c -o sd.o sd.c
> > {standard input}: Assembler messages:
> > {standard input}:583: Error: Invalid operands
> > {standard input}:607: Error: Invalid operands
> > make[3]: *** [sd.o] Error 1

This is a kernel problem, where we use the "std" assembler command to store a 
u64 value to user-space:
See at include/asm-parisc/uaccess.h:  macro __put_user:
  case 8: __put_kernel_asm("std",x,ptr); break;       \

Sadly "std" is only available on 64 bit PA CPUs and gcc knows that and give you
the above error in 32bit kernel builds.

Greetings,
Helge.



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From: =?ISO-8859-1?Q?R=FCdiger?= Scholz <rscholz@hrzpub.tu-darmstadt.de>
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Subject: [parisc-linux] Keyboard problems and StiFB
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Hi there!

At first I want to say thanks to all the people, who made the great 
improvements on the kernel!! Now even my 715/100 with its second 
graphics card is running a stifb. ;-) And X-Server is running with 
1280x1024 with 24bpp... (That's cool...)

But now I have some trouble with my keyboard. I use a ps/2-keyboard and 
-mouse with HIL-Adaptorbox. If I do a cold boot the kernel finds a 
HIL-Keyboard, loads a keymap and  at the login the keyboard has a weird 
behaviour. ( Pressing enter e.g. gets me to the MagicKey-Menu). When 
rebooting the machine the kernel now didn't found any HIL-Keyboard, says 
s.th. about "device not claimed" , but the keyboard now works. The 
PS/2-Mouse works always.
Any Solution ?
And there's another question: How do I change between the first stifb 
and the second stifb? Console always opens on my second graphics card 
(HCRX24), but due to the resolution of 1280x1024 everything is quite 
small, so I would like use the builtin graphics.

Thanks in advance,

        Rdiger




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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: [parisc-linux] Keyboard problems and StiFB
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On Sun, Nov 11, 2001 at 11:57:59AM +0100, Rdiger Scholz wrote:
> But now I have some trouble with my keyboard. I use a ps/2-keyboard and 
> -mouse with HIL-Adaptorbox. If I do a cold boot the kernel finds a 
> HIL-Keyboard, loads a keymap and  at the login the keyboard has a weird 

hmm, that sounds wrong. If you have only attached a PS/2 keyboard, it
shouldn't find a HIL keyboard.

> Any Solution ?

posting your boot.log might help a little bit.

> And there's another question: How do I change between the first stifb 
> and the second stifb? Console always opens on my second graphics card 
> (HCRX24), but due to the resolution of 1280x1024 everything is quite 
> small, so I would like use the builtin graphics.

video=map:x1:x2:x3 ...

x1 selects framebuffer on virtual console 1
x2 selects framebuffer on virtual console 2
x3 selects framebuffer on virtual console 3
...

Look for the BootPrompt-HowTo for a longer description.

I don't have my B132 setup for testing this, but it should work (final
last word :-)).

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] hppa gcc bug?
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Looks like there's a strength-reduce optimization bug in g++-3.0.2 on
hppa....

Trying to compile qt-x11 gives a segmentation fault when compiling
src/kernel/qurl.cpp. (willy and lamont also saw this I believe...). Turning
off strength-reduction (-fno-strength-reduce) allows the file to
compile to completion.

It's dying inside a loop_iterations call, but I don't know enough to
say why...

Can someone more knowledgable please take a look?

Preprocessed source attached. Compilation flags:

g++ -D_REENTRANT -DQT_THREAD_SUPPORT -c -I/usr/X11R6/include
-I/usr/src/new/qt-x11-2.3.2/include -I/usr/X11R6/include -pipe
-fno-exceptions -O2 -Wall -Wpointer-arith -Wwrite-strings
-Wmissing-prototypes -fPIC -DQT_BUILTIN_GIF_READER=1 -DQT_XFT   
-o kernel/qurl.o kernel/qurl.cpp

This is using the latest binutils/gcc that are in the Debian archive.
(binutils 20011021 and gcc 3.0.2 w/ Alan's patches)

sh-2.05# gcc -v
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0.2/specs
Configured with: ../src/configure -v
--enable-languages=c,c++,f77,proto,objc --prefix=/usr
--infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as
--with-gnu-ld --with-system-zlib --enable-long-long --enable-nls
--without-included-gettext --disable-checking --enable-threads=posix
--with-cpp-install-dir=bin hppa-linux
Thread model: posix
gcc version 3.0.2 (Debian)

sh-2.05# ld -v
GNU ld version 2.11.92.0.10 20011021 Debian/GNU Linux

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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--6sX45UoQRIJXqkqR--



From - Thu Nov 08 21:20:20 2018
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From: Rafael Herrera <vze26vn8@verizon.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Current kernel from CVS does not build.
Date: Sun, 11 Nov 2001 20:40:44 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:12994

After intalling the most recent kernel snapshot 
ftp://ftp.parisc-linux.org/cvs/linux-20011108.tar.gz (2.4.9-pa79) and 
Randolph Chung's gcc, my 715/75 has been very stable.

I tried to update the sources with the latest CVS version, but the 
compilation failed. The file */arch/parisc/kernel/pdc_cons.c and 
*/kernel/printk.c have a conflict. The variable log_size used in 
pdc_cons.c is not defined in printk.c. The kernel does not build.

P.S. I successfully built linux-20011108.tar.gz with Randolf's gcc 
package. It took an hour.
-- 
      Rafael




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From: "Craig D. Lansing (root)" <lansing@beldar.com>
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Subject: [parisc-linux] J2240 - Almost There...
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After using my CD burner to create several nice coasters, I have been
able to create a couple of CD's from which my J2240 will attempt to
boot.  I think that I am almost there, but need someone to show me the
error of my ways.  Disclaimer: I am not a System Admin by trade.  I have
been an HP-UX user since about version 7, but have not had a box of my
own to play with until I pulled this J2240 from the trash.  The system
is a J2240 2-way, 2.5GB RAM, 2x8GB internal FW-SCSI Disks, DDS-III,
internal Toshiba SCSI CD-ROM, 21" graphics console.

Here's what I get when I try to boot from the 0.9.2 iso CD after
changing my boot path to the internal CD-ROM (SESCSI.2.0):

Boot IO Dependent Code (IODC) revision 153

HARD Booted

palo ipl 0.92 root@spqr Mon Jun 25 23:03:13 CEST 2001
0/vmlinux32 2853588 bytes @ 0x6ad6800
0/vmlinux64 3585851 bytes @ 0x6d8f800
0/ramdisk 1991209 bytes @ 0x70fb000

Command Line: 'root=/dev/ram console=tty0 sti=0 sti_font=VGA8x16
TERM=linux'

Kernel: partition 0 file /vmlinux
Ramdisk: partition 0 file /ramdisk
Warning: Kernel name doesn't end with 32 or 64... Guessing 32
ELF32 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 010000000 size 1606948 mediaptr 0x1000
Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8

Loading ramdisk 1991209 bytes @ 3fe09000...
branch to kernel entry point 0x00100000
Set default PSW W bit to 0

<System hangs here>

---------------------------------------------------------------------------

Booting from the 0.9 sti iso CD gives the above and goes a little
further:

[snip]

CPUID Vers 14 rev 23
Model 9000/782/J2240

[snip]

Found devices:
1. SummitHawk Dino RS-232(10)....
[snip]
18. SummitHawk memory(1)
[snip]
Kernel command line HOME=/ TERM=linux root=/dev/ram console=tty0 sti=0
sti_font=VGA8x16
Console: colour dummy device 80x25

<System hangs here>

---------------------------------------------------------------------------



TIA,
Craig








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From: Jurriaan on Alpha <thunder7@xs4all.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] J2240 - Almost There...
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On Sun, Nov 11, 2001 at 09:43:18PM -0500, Craig D. Lansing (root) wrote:
> After using my CD burner to create several nice coasters, I have been
> able to create a couple of CD's from which my J2240 will attempt to
> boot.  I think that I am almost there, but need someone to show me the
> error of my ways.  Disclaimer: I am not a System Admin by trade.  I have
> been an HP-UX user since about version 7, but have not had a box of my
> own to play with until I pulled this J2240 from the trash.  The system
> is a J2240 2-way, 2.5GB RAM, 2x8GB internal FW-SCSI Disks, DDS-III,
> internal Toshiba SCSI CD-ROM, 21" graphics console.

We know the story. Now don't mention it again, because we'll go green
with envy and look elsewhere :-)

> Command Line: 'root=/dev/ram console=tty0 sti=0 sti_font=VGA8x16
> TERM=linux'
> 
Shouldn't that be ttyS0 for the console?

Good luck,
Jurriaan
-- 
Go not unto the Usenet for advice, for you will be told both yea and nay (and
quite a few things that just have nothing at all to do with the question).
	seen in a .sig somewhere
GNU/Linux 2.4.13-ac8 on Debian/Alpha 64-bits 990 bogomips load:1.33 1.47 1.20



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From: Alan Modra <amodra@bigpond.net.au>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] hppa gcc bug?
Date: Mon, 12 Nov 2001 18:23:17 +1030
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To: Randolph Chung <randolph@tausq.org>
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On Sun, Nov 11, 2001 at 04:07:12PM -0800, Randolph Chung wrote:
> Looks like there's a strength-reduce optimization bug in g++-3.0.2 on
> hppa....

For those reading this on gcc-patches, there's a .ii at
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-November/014491.html
This is with hppa-linux-gcc based on 3.0.2 20011019.

Program received signal SIGSEGV, Segmentation fault.
0x8187803 in loop_iterations (loop=0x83840f4)
    at /src/parisc/gcc_new/gcc/unroll.c:3509
(gdb) p debug_rtx (temp)
(jump_insn 2390 2389 2391 (addr_diff_vec:DI (label_ref:SI 2389)
        [ 
            (label_ref:SI 1998)
            (label_ref:SI 2392)
            (label_ref:SI 2392)
            (label_ref:SI 2392)
            (label_ref:SI 2045)
            (label_ref:SI 2093)
            (label_ref:SI 2141)
            (label_ref:SI 2189)
            (label_ref:SI 2237)
            (label_ref:SI 2285)
            (label_ref:SI 2333)
        ] 
        (const_int 0 [0x0])
        (const_int 0 [0x0])) -1 (nil)
    (nil))

Making a wild stab at a fix, which isn't likely to be ideal as I don't
know this area of gcc.  /mumble  Probably should iterate over the elements
of the addr_diff_vec, or something.  /nomumble

	* unroll.c (loop_iterations): Don't segfault on ADDR_DIFF_VEC.

--- gcc/unroll.c~	Mon Oct 15 11:11:14 2001
+++ gcc/unroll.c	Mon Nov 12 17:41:12 2001
@@ -3506,13 +3506,16 @@ loop_iterations (loop)
 
       do
 	{
-	  if (GET_CODE (temp) == JUMP_INSN
-	      /* Previous unrolling may have generated new insns not covered
-		 by the uid_luid array.  */
-	      && INSN_UID (JUMP_LABEL (temp)) < max_uid_for_loop
-	      /* Check if we jump back into the loop body.  */
-	      && INSN_LUID (JUMP_LABEL (temp)) > INSN_LUID (loop->top)
-	      && INSN_LUID (JUMP_LABEL (temp)) < INSN_LUID (loop->cont))
+	  if (GET_CODE (temp) != JUMP_INSN)
+	    continue;
+	  if (/* It's an addr_diff_vec.  */
+	      JUMP_LABEL (temp) == 0
+	      || (/* Previous unrolling may have generated new insns
+		     not covered by the uid_luid array.  */
+		  INSN_UID (JUMP_LABEL (temp)) < max_uid_for_loop
+		  /* Check if we jump back into the loop body.  */
+		  && INSN_LUID (JUMP_LABEL (temp)) > INSN_LUID (loop->top)
+		  && INSN_LUID (JUMP_LABEL (temp)) < INSN_LUID (loop->cont)))
 	    {
 	      if (loop_dump_stream)
 		fprintf (loop_dump_stream,




From - Thu Nov 08 21:20:20 2018
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From: Albert Strasheim <fullung@ilink.nis.za>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] J2240 - Almost There...
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Hello,

What I would do is the following:

1. Get the latest working kernel from ftp.parisc-linux.org 
(linux-20011108 should do).

2. Compile (or cross-compile with xc-latest) it, and use tftp/bootp (I
think?) to boot the resulting lifimage from make palo. See how far that
gets you.

Regards,

Albert



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From: Markus Grabert <xam@student.cs.ucc.ie>
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Hi there,

One question:

Isn't the loop driver broken in Linux-2.4.14
(and fixed in 2.4.15-pre1) ?

Are there any plans to incorporate the bugfix in the CVS ?

greetings max





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On Mon, Nov 05, 2001 at 02:22:50PM +0000, Richard Hirst wrote:
> On Mon, Nov 05, 2001 at 07:16:36AM -0500, Herb Radford wrote:
> > OK, I found some stuff in the archive on the "Chassis Codes"
> > and set up an old laptop as a terminal, disconnected the
> > keyboard (and mouse) and booted.  Now I tried this with the
> > disk out of my 712/60 and the C200 is not hung.  It proceeds
> > through the boot process and then hangs on starting cron.
> 
> Hmm, the next thing would be the login prompt.  Has it really
> hung, or is the inittab from your 712/60 set up to only issue
> a getty on the graphical console?

Yes, I had this sort of problem.  The D270 I have access to only
has a serial console.  The debian installation program kept
bombing out at the end, so I eventually managed to get
something working using debootstrap manually.  Then it seemed to
hang after starting crond although it worked fine with
init=/bin/bash.  I realised it was starting gettys on
/dev/tty[1-6] and not on /dev/ttyS0, so I commented out the
virtual console lines in /etc/inittab and uncommented the
/dev/ttyS0 one and things are working much better :)

I did see some nasty fs corruption (ext2) though, but I am not
sure if this is caused by a bad disk or bad termination etc. or
buggy drivers...  I'll post again if I narrow it down more.

-- 
Michael Wood <mwood@its.uct.ac.za>



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The fix is in according to my parisc-linux-cvs logs. :-)

Regards,

Albert

On Mon, 12 Nov 2001, Markus Grabert wrote:

> Hi there,
>=20
> One question:
>=20
> Isn't the loop driver broken in Linux-2.4.14
> (and fixed in 2.4.15-pre1) ?
>=20
> Are there any plans to incorporate the bugfix in the CVS ?
>=20
> greetings max

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Subject: [parisc-linux] C240: Graphics, 64bit kernel and more
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Hello,

I'm going to buy a C240 (I already have a 730 (not here) and had a F10).
It has 512MB and FX/2 24bit graphics. I think it's rather good supported
by parisc-linux, am I right ?

Before I actually buy the computer, I wanted to know whether STI
and/or the framebuffer for a 64bit kernel is working.

Moreover I've read that UW-SCSI is not working yet.
So is it working in FAST-SCSI (narrow) mode ?

Are you aware of any other gcc/binutils bugs or should
gcc/binutils NOW create proper executables for pa2.0 and
pa1.1 (including the old CPUs like 730's PCX-S CPU) ?

does produce gcc rather good optimized code for parisc
(compared to HP's cc, is there a significant performance difference) ?

I can imagine that the Linux/HPPA kernel is not very optimized yet
(can't compare the speed on my 730 with HP/UX since I don't
have the OS software anymore ...). Is the speed difference just a
few percent or can you 'feel' it (mhh, fuzzy question) ?

Can I put in any PC PCI graphic card (as a second graphic card) ?
The same for any PC PCI cards (ethernet, modem, TV, ...) ?

Thanks in advance for answering my (newbie) questions!

I installed Linux/HPPA on my 730 (even before the 0.9.0 release),
but I moved to Ireland and the machine is now in Germany ...
I try to follow the mailing list, but I probably haven't read all
the mails, so forgive me if I asked questions already discussed
on the mailing list.

Greetings Max

... and keep on the good work





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Subject: Betr.: [parisc-linux] C240: Graphics, 64bit kernel and more
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>Hello,
>
>I'm going to buy a C240 (I already have a 730 (not here) and had a F10).
>It has 512MB and FX/2 24bit graphics. I think it's rather good supported
>by parisc-linux, am I right ?

yup.

>
>Before I actually buy the computer, I wanted to know whether STI
>and/or the framebuffer for a 64bit kernel is working.

sti is just working, IIRC

>
>Moreover I've read that UW-SCSI is not working yet.
>So is it working in FAST-SCSI (narrow) mode ?

there's nothing wrong with the UW-SCSI to my knowledge.

>
>Are you aware of any other gcc/binutils bugs or should
>gcc/binutils NOW create proper executables for pa2.0 and
>pa1.1 (including the old CPUs like 730's PCX-S CPU) ?

There are still bugs.

>
>does produce gcc rather good optimized code for parisc
>(compared to HP's cc, is there a significant performance difference) ?

in general, comparing gcc to a manufacturers compiler; there is
such a difference.

>
>I can imagine that the Linux/HPPA kernel is not very optimized yet
>(can't compare the speed on my 730 with HP/UX since I don't
>have the OS software anymore ...). Is the speed difference just a
>few percent or can you 'feel' it (mhh, fuzzy question) ?
>
I can only say that compiling a kernel on my C200 takes about 2 times
as long as on my alpha (21164, 500 Mhz, 2 Mb cache). I feel it should
be faster.

Good luck,
Jurriaan




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Subject: Re: [parisc-linux] Current kernel from CVS does not build.
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Rafael Herrera wrote:
> I tried to update the sources with the latest CVS version, but the 
> compilation failed. The file */arch/parisc/kernel/pdc_cons.c and 
> */kernel/printk.c have a conflict. The variable log_size used in 
> pdc_cons.c is not defined in printk.c. The kernel does not build.

The merge to 2.4.14 isn't finished yet.
Despite working around the log_size issue, it still doesn't boot.

Watch the parisc-linux-cvs mailing list for progress on this.
We'll probably post an "It works" msg here too.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253



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Markus Grabert wrote:
> Before I actually buy the computer, I wanted to know whether STI
> and/or the framebuffer for a 64bit kernel is working.

I'm sure it's working on 32-bit kernels and you can run 32-bit
kernels on the C240. Unless you have specific reason to run a 64-bit
kernel, I'd reccomend running a 32-bit kernel. Follow the discussion
about C200 since the C240 is *mostly* the same.

> Moreover I've read that UW-SCSI is not working yet.
> So is it working in FAST-SCSI (narrow) mode ?

A500/BCJ-XXXX machines only have UW-SCSI or U2-SCSI.
It works fine.

> Are you aware of any other gcc/binutils bugs or should
> gcc/binutils NOW create proper executables for pa2.0 and
> pa1.1 (including the old CPUs like 730's PCX-S CPU) ?

Yes - should work fine. Note one can build 32-bit PA2.0 binaries.
The scheduling and insns are optimized for PA2.0 CPU but will
run in "narrow" mode.

> does produce gcc rather good optimized code for parisc
> (compared to HP's cc, is there a significant performance difference) ?

Not as good. On avg, acc produces 10-15% faster code and can generate
the object file substantially faster. This is froma talk 1.5 years ago
given at High Performance Computer Users Group in San Jose by the
HP compiler guru on optimizing apps with acc. He was comparing SpecInt
and SpecFP results.

> I can imagine that the Linux/HPPA kernel is not very optimized yet
> (can't compare the speed on my 730 with HP/UX since I don't
> have the OS software anymore ...). Is the speed difference just a
> few percent or can you 'feel' it (mhh, fuzzy question) ?

Some initial tests I've seen so far place performance between almost
equal to as much as 3x slower (measuring SSL transactions). Until
someone gets a profiler working (oprofile?) I won't really be able
to fix this kind of problem. I just don't have time to go trolling
through all the code.

> Can I put in any PC PCI graphic card (as a second graphic card) ?

Yes. But don't expect VGA or anything that requires BIOS to work.
Alan Cox posted how to make VGA/BIOS work here nearly 2 years ago
and I don't think it's been implement by anyone though.

> The same for any PC PCI cards (ethernet, modem, TV, ...) ?

Ditto. Watch out for misaligned accesses and don't expect
anyone to have tried this already.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253



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All,

I am trying to compile GDB.

I downloaded gdb-20011024 from http://ftp.parisc-linux.org/cvs/

The compilation of gdb failed. There is an undefined constant PT_CR30. This
is used in
gdb/pa-linux-nat.c and gdb/gdb/gdbserver/low-linux.c.

Some PT_ constants are defined in /usr/include/asm/offset.h, but not
PT_CR30.

Should this gdb bundle compile?

Is there another gdb package that compiles on this platform?

All help is appreciated.

Thanks in advance,
Aubrey Griffin



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Today, I rescued a 700/96 and cable from the trash so I'm going to try to
use it as a serial console to see how far I get.  It's amazing the "junk"
that shows up in the trash when your HP shop gets bought out by an IBM shop.
Anybody need a few K580x4's, 4GB RAM, and a couple of fully loaded AutoRaid
cabinets each?  In the meantime, how do I change the "Command Line" at boot?
Do I have to "interact" with IPL (almost as bad as having to interact with
people :-) ?

----- Original Message -----
From: Jurriaan on Alpha <thunder7@xs4all.nl>
To: Craig D. Lansing (root) <lansing@beldar.com>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Monday, November 12, 2001 1:03 AM
Subject: Re: [parisc-linux] J2240 - Almost There...


> On Sun, Nov 11, 2001 at 09:43:18PM -0500, Craig D. Lansing (root) wrote:
> > After using my CD burner to create several nice coasters, I have been
> > able to create a couple of CD's from which my J2240 will attempt to
> > boot.  I think that I am almost there, but need someone to show me the
> > error of my ways.  Disclaimer: I am not a System Admin by trade.  I have
> > been an HP-UX user since about version 7, but have not had a box of my
> > own to play with until I pulled this J2240 from the trash.  The system
> > is a J2240 2-way, 2.5GB RAM, 2x8GB internal FW-SCSI Disks, DDS-III,
> > internal Toshiba SCSI CD-ROM, 21" graphics console.
>
> We know the story. Now don't mention it again, because we'll go green
> with envy and look elsewhere :-)
>
> > Command Line: 'root=/dev/ram console=tty0 sti=0 sti_font=VGA8x16
> > TERM=linux'
> >
> Shouldn't that be ttyS0 for the console?
>
> Good luck,
> Jurriaan
> --
> Go not unto the Usenet for advice, for you will be told both yea and nay
(and
> quite a few things that just have nothing at all to do with the question).
> seen in a .sig somewhere
> GNU/Linux 2.4.13-ac8 on Debian/Alpha 64-bits 990 bogomips load:1.33 1.47
1.20
>




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On Mon, Nov 12, 2001 at 07:07:35PM -0500, Craig D. Lansing wrote:
> Today, I rescued a 700/96 and cable from the trash so I'm going to try to
> use it as a serial console to see how far I get.  It's amazing the "junk"
> that shows up in the trash when your HP shop gets bought out by an IBM shop.
> Anybody need a few K580x4's, 4GB RAM, and a couple of fully loaded AutoRaid
> cabinets each?  In the meantime, how do I change the "Command Line" at boot?
> Do I have to "interact" with IPL (almost as bad as having to interact with
> people :-) ?

The K580s are definitely of interest...

Yes, interacting with IPL (or ISL on some models) is how you change
the command line params; you get a nifty little menu and can edit the
arguments.

-- 
Revolutions do not require corporate support.



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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] J2240 - Almost There...
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> Today, I rescued a 700/96 and cable from the trash so I'm going to try to
> use it as a serial console to see how far I get.  It's amazing the "junk"
> that shows up in the trash when your HP shop gets bought out by an IBM shop.
> Anybody need a few K580x4's, 4GB RAM, and a couple of fully loaded AutoRaid
> cabinets each?  In the meantime, how do I change the "Command Line" at boot?

Where do I send the truck!

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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From: "Craig D. Lansing" <lansing@beldar.com>
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The offer for the K580s was only half-serious.  I have 4 and have found a
home for 1 at another site where it won't have to be seen with any AS-400's
or RS-6000's.  I should be done with the other 3 next Summer if all goes
well.  If the company intends to throw them away I'll rescue them, the
AutoRaids, Jamaicas, etc. and see who wants them.  Since Leibert doesn't
contain the letters H or P, they may stay so you'd have to get your own UPS.
However, these K's may be "good enough" to find another home or get sold on
the used market, not like a lowly J :-(  I figure I'm doing good with a J in
the garage, I'm not sure the other half would be impressed with a K in a
2-meter cabinet, but the electric company might be :-)

BTW, at Jurriaan's suggestion I tried setting the console to ttyS0 and also
tried setting sti=1 and still no luck.  As I mentioned above, the J is in
the garage far away from my other boxes so I have no network option at this
point.  CD is my only hope for a while.  So far, this is almost as much fun
as my first i386 dual-boot install :-)

----- Original Message -----
From: Ryan Bradetich <rbradetich@uswest.net>
To: Craig D. Lansing <lansing@beldar.com>
Sent: Monday, November 12, 2001 8:59 PM
Subject: Re: [parisc-linux] K580


> On Mon, Nov 12, 2001 at 07:07:35PM -0500, Craig D. Lansing wrote:
> > Today, I rescued a 700/96 and cable from the trash so I'm going to try
to
> > use it as a serial console to see how far I get.  It's amazing the
"junk"
> > that shows up in the trash when your HP shop gets bought out by an IBM
shop.
>
> > Anybody need a few K580x4's, 4GB RAM, and a couple of fully loaded
AutoRaid
> > cabinets each?  In the meantime, how do I change the "Command Line" at
boot?
> > Do I have to "interact" with IPL (almost as bad as having to interact
with
>
> Craig,
>
> I am doing the initial port of parisc-linux to the K-series ... I have a
K460,
> but the K570/K580 series have 1 additional feature that I am interested in
as
> maintainer of the ccio driver.... it has the ability to swap out 2
processors
> for an additional U2 chip (ccio driver).  Are you serious about donating a
> K580?  I would gladly pay shipping for one of these machines (the autoraid
> would also be nice since I do not have 1 to play with).   This is coming
out
> of my personal pocket but if you are serious about the offer, I am serious
> about getting the port working on the K-class machines, and maybe we can
> work something out.
>
> Otherwise, I'll just keep working on the K-460 until a good deal for a
K-580
> comes along.
>
> Thanks!   (I'd keep one of those K boxes for yourself, right now the K
works,
> but it is not very pretty at the moment.  I am currently writing a console
> driver for it so it looks more like a normal linux box, but once the box
boots,
> you can ssh into the system (no console driver yet) and use it pretty
happily:))
>
> - Ryan
>




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This is another bug report on my test machine.

I compiled 2.4.9-pa79 using "make oldconfig", set the machine to use the 
STI console and booted the system.

I can see the kernel boot messages and get a login prompt, but the 
keyboard does not work, since what I type does not appear.

This is a keyboard that whose cable connects directly to the computer 
and has a connector for the mouse.

P.S. I see similar bahavior with 2.4.14, but from previous responses, 
the code merge is not complete yet and the console code is affected.

By the way what is the correct inittab entry, palo figures the parameter 
"console=tty0", but there is no entry for tty0 in inittab.

-- 
      Rafael




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Subject: [parisc-linux] Problems of instaling (booting) on a 715/75
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Hello,

I have 9000/715/75.

1. I am instaling from CD (palinux-0.9.2.iso) I have this massage.
After my copm hang-up.

.........
Trying scsi.2.0
Boot path initialized
Attempting to load IPL

Hard booted.
palo ipl 0.92 oot@spqr Mon Jun 25 23:03:13 CEST 2001
0/vmlinux32 2853588 bytes @ 0x6ad6800
0/vmlinux64 3585851 bytes @ 0x6a8f800
0/ramdisk 1991209 bytes @ 0x70fb000

Command line: 'root=/dev/ram console=tty0 sti=0 sti_font=VGA8x16 TERM=linux

Kernel: partition 0 file /vmlinux
Ramdisk: partition 0 file /ramdisk
Warning: kernel name doesn't end with 32 or 64... Guessing Annoyance: Firmware
does not support PDC_MODEl_CAPABILITIES call
32
ELF32 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 1606948 mediaptr 0x1000
Segment 1 load 0028a000 size 468472 mediaptr 0x18a000
Segment 2 load 00300000 size 8192 mediaptr 0x1fd000
Segment 3 load 0034bea8 size 80688 mediaptr 0x1ffea8
loading ramdisk 1991209 bytes @ 03e090000...
branching to kernel entry point 0x00100000
........


2. If I instaling from CD serial ver. (palinux-0.9-32serial.iso) then
I have this message:

.........
Trying scsi.2.0
Boot path initialized
Attempting to load IPL

IPL error: bad IPL checksum.
.....

Is this mortally?

-- 
Best regards,
 Peter                          mailto:pk@nikom.tagil.ru





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On Mon, Nov 12, 2001 at 09:58:10PM -0500, Craig D. Lansing wrote:
> BTW, at Jurriaan's suggestion I tried setting the console to ttyS0 and also
> tried setting sti=1 and still no luck.  As I mentioned above, the J is in
> the garage far away from my other boxes so I have no network option at this
> point.  CD is my only hope for a while.  So far, this is almost as much fun
> as my first i386 dual-boot install :-)
> 
In that case, be sure to test both serial ports, especially at the
moment it seems to hang. I agree installing is fun!

Good luck,
Jurriaan
-- 
"They know nothing of what is to come," Iskaral Pust whispered. "An
eternal flare of pain, but shall I waste words in an effort to prepare
them? No, not at all, never. Words are too precious to be wasted, hence
my coy silence while they hesitate in a fit of immobile ignorance."
	Steven Erikson - Deadhouse Gates
GNU/Linux 2.4.13-ac8 on Debian/Alpha 64-bits 990 bogomips load:0.09 0.12 0.14



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I'd suggest you boot the cd image (palinux-0.9.2.iso) using the serial 
console. I have the same system and the STI console does not work with 
that cd.

As soon as you have a minimal system running, switch the kernel image in 
/boot for this one:

	ftp://ftp.parisc-linux.org/kernels/vmlinux-32-20011008

Edit the /etc/palo.conf accordingly, re-run palo and reboot. I 
experienced scsi problems with the kernel in the cd image.
-- 
      Rafael




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] J2240 - Almost There...
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"Craig D. Lansing" wrote:
...
> In the meantime, how do I change the "Command Line" at boot?
> Do I have to "interact" with IPL (almost as bad as having to interact with
> people :-) ?

Yes. Adding new params is less obvious: edit any param and append ' '
plus the new param.

grant



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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] to swap or not to swap
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Can someone please explain this to me?

It looks like some BE architectures define {read,write}[wl] to do LE swapping 
(sparc, mipsel, ppc, etc) but others don't (s390, parisc). What is the 
"correct" behavior?

The inX/outX interfaces are all internal-swapped to LE.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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On Mon, 12 Nov 2001, Craig D. Lansing wrote:

> Today, I rescued a 700/96 and cable from the trash so I'm going to try to
> use it as a serial console to see how far I get.  It's amazing the "junk"
> that shows up in the trash when your HP shop gets bought out by an IBM shop.
> Anybody need a few K580x4's, 4GB RAM, and a couple of fully loaded AutoRaid
> cabinets each?  In the meantime, how do I change the "Command Line" at boot?
> Do I have to "interact" with IPL (almost as bad as having to interact with
> people :-) ?

Heh, I'm sure almost everyone on this list would love to aquire a K580.  I
know I would!
	Nick




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On Tue, Nov 13, 2001 at 12:30:57AM -0800, Randolph Chung wrote:
> Can someone please explain this to me?
> 
> It looks like some BE architectures define {read,write}[wl] to do LE swapping 
> (sparc, mipsel, ppc, etc) but others don't (s390, parisc). What is the 
> "correct" behavior?
> 
> The inX/outX interfaces are all internal-swapped to LE.

depends on the PCI bridge and MMU whether you need to do bytesexswapping
in software or not.  see section 9 in the Dino ERS, page 61 for how PA
does this.

-- 
Revolutions do not require corporate support.



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bofh:~# apt-get upgrade
Reading Package Lists... Done
Building Dependency Tree... Done
The following packages have been kept back
  binutils bsdutils cpp-3.0 g++-3.0 gcc-3.0 gzip ipchains libstdc++3
  libstdc++3-dev logrotate mount nano net-tools procps sysvinit util-linux 
0 packages upgraded, 0 newly installed, 0 to remove and 16  not upgraded.

bofh:~# apt-get install gzip
Reading Package Lists... Done
Building Dependency Tree... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.

Since you only requested a single operation it is extremely likely that
the package is simply not installable and a bug report against
that package should be filed.
The following information may help to resolve the situation:

Sorry, but the following packages have unmet dependencies:
  gzip: PreDepends: libc6 (>= 2.2.4-4) but 2.2.4-3 is to be installed
E: Sorry, broken packages

ii  libc6          2.2.4-3        GNU C Library: Shared libraries and Timezone
ii  libc6-dev      2.2.4-3        GNU C Library: Development Libraries and Hea


Something Im missing ?

-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.



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On Tue, Nov 13, 2001 at 06:13:52PM +0000, Richard Allen wrote:
> bofh:~# apt-get upgrade
[..]
> Something Im missing ?

the email that said `do not apt-get upgrade because it will break your
system'?

-- 
Revolutions do not require corporate support.



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On Tue, 2001-11-13 18:13:52 +0000, Richard Allen <ra@hp.is>
wrote in message <20011113181352.B382@hp.is>:
> bofh:~# apt-get upgrade
[...]

> Sorry, but the following packages have unmet dependencies:
>   gzip: PreDepends: libc6 (>= 2.2.4-4) but 2.2.4-3 is to be installed
> E: Sorry, broken packages
> 
> ii  libc6          2.2.4-3        GNU C Library: Shared libraries and Timezone
> ii  libc6-dev      2.2.4-3        GNU C Library: Development Libraries and Hea

I've tried to natively build 2.2.4-4 on a 712/60 with gcc-3.0. It
breaks in ./glibc-2.2.4/sysdeps/hppa/dl-machine.h at line 534:

    533       /* .eh_frame can have unaligned relocs.  */
--> 534       if (reloc_addr & 3)
    535         {
    536           char *rel_addr = (char *) reloc_addr;
    537           rel_addr[0] = value >> 24;
    538           rel_addr[1] = value >> 16;
    539           rel_addr[2] = value >> 8;
    540           rel_addr[3] = value;
    541           return;
    542         }
    543       break;
    544 

I didn't see why I may not check the two low bits... I gave up:-(

MfG, JBG

-- 
Jan-Benedict Glaw   .   jbglaw@lug-owl.de   .   +49-172-7608481
	http://lug-owl.de/~jbglaw/software/snapshot2cvs/



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> depends on the PCI bridge and MMU whether you need to do bytesexswapping
> in software or not.  see section 9 in the Dino ERS, page 61 for how PA
> does this.

Empirically I've found this not to be the case. For example, if i need
to write 0x01 to byte 0 of a 16-bit PCI register, I've found I need to
do:

writew(0x0100, addr) on parisc
vs
writew(0x0001, addr) on x86

Grant also seems to be of the opinion that cpu data needs to be swapped
before written to PCI devices... so does that mean that if i wrote
something like:

writew(cpu_to_le16(foo), addr)

then on things like parisc it gets swapped once, and on things like
sparc it gets swapped twice?

randolph
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Randolph Chung wrote:
> Grant also seems to be of the opinion that cpu data needs to be swapped
> before written to PCI devices... so does that mean that if i wrote
> something like:
> 
> writew(cpu_to_le16(foo), addr)
> 
> then on things like parisc it gets swapped once, and on things like
> sparc it gets swapped twice?

maybe that's a bug in how sparc code works?

For parisc, the above is correct for (nearly) all PCI devices.
(I hedge since odd PCI devices might want cpu_to_be16() instead).

And don't forget that control data read by the PCI device via DMA
has to be "endian corrected" too.

PA HW implements what I've heard called "address invariance".
IIRC, m700-10 (r4000 mips, Olivetti) does the same thing.
I think Dino Documentation calls this "byte is byte".
Ie byte stream offsets are the same regardless of how they
are address by either DMA or PIO from either CPU or PCI device.

The result is multi-byte data (ie short/int) has to be swapped
when read/written by the PArisc CPU and the addresses don't change.

HTH,
grant



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On Tue, Nov 13, 2001 at 06:28:25PM +0000, Matthew Wilcox wrote:
> On Tue, Nov 13, 2001 at 06:13:52PM +0000, Richard Allen wrote:
> > bofh:~# apt-get upgrade
> [..]
> > Something Im missing ?
> 
> the email that said `do not apt-get upgrade because it will break your
> system'?

Oh :)   I thought we got past that :)

-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.



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Hi!

I've been following this list for a while ever since my school handed me 5
735's, some "Series 700's" and three 712's. I asked around and decided to
try to install pa-risc linux on the 712's as they "have better support".
So, I'm sitting here with the machine running. There's a SCSI cd-rw on the
SCSI-2 port. The machine is a 712/80i with 1 GB disk and 64MB ram, also an
internal floppy.

I have a copy of pa-risc linux, the ~134MB 0.9.2 ISO file, on a CD. It
will boot, and all's fine in the debian installation until the "Configure
Device Driver Modules" step.  When I do this, it claims,

"No modules were found in /target/lib/modules/2.4.0-32 that could be
configured. Please install the kernel modules first, bu running the
"Configure Device Driver Modules" step"

I take it you can see my quandrary.

Does anyone know what to do? I've heard a serial install works better,
what does that entail? Also, I believe that this is a 64 bit machine, am I
right?

With the serial install, I have a VT 420 on the serial port. I tried
booting a copy of the parisc 64 bit serial ISO but it didn't work...

I know the CDrom is good too because I can install HPUX 10.20 off CD from
that same drive, on the same computer.

Thanks,

-phil


-- 
===============================================================================

Phil Anderson
UNIX Systems Admin
andersop@neverland.ncssm.edu
The_13th_Ewok@hotmail.com

"Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson




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On Tue, Nov 13, 2001 at 04:18:49PM -0500, Phil Anderson wrote:
> I have a copy of pa-risc linux, the ~134MB 0.9.2 ISO file, on a CD. It
> will boot, and all's fine in the debian installation until the "Configure
> Device Driver Modules" step.  When I do this, it claims,
> 
> "No modules were found in /target/lib/modules/2.4.0-32 that could be
> configured. Please install the kernel modules first, bu running the
> "Configure Device Driver Modules" step"

that's fine.  all the drivers you need are built into the kernel.

> Does anyone know what to do? I've heard a serial install works better,
> what does that entail? Also, I believe that this is a 64 bit machine, am I
> right?

No, all the machines you have mentioned are 32-bit machines.

-- 
Revolutions do not require corporate support.



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Phil Anderson wrote:
> "No modules were found in /target/lib/modules/2.4.0-32 that could be
> configured. Please install the kernel modules first, bu running the
> "Configure Device Driver Modules" step"

BTW, this is a bug in the installer. It should say
"Install Kernel Modules" or something like that instead.

...
> Also, I believe that this is a 64 bit machine, am I right?

Sorry - no.
Please install the 32 bit kernel bits and that msg will go away.

grant



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> Grant also seems to be of the opinion that cpu data needs to be swapped
> before written to PCI devices... so does that mean that if i wrote
> something like:
> 
> writew(cpu_to_le16(foo), addr)
> 
> then on things like parisc it gets swapped once, and on things like
> sparc it gets swapped twice?

Constant swaps get optimised out by the compiler in theory though.




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On Tue, Nov 13, 2001 at 07:33:30PM +0100, Jan-Benedict Glaw wrote:
> I've tried to natively build 2.2.4-4 on a 712/60 with gcc-3.0. It
> breaks in ./glibc-2.2.4/sysdeps/hppa/dl-machine.h at line 534:
> 
>     533       /* .eh_frame can have unaligned relocs.  */
> --> 534       if (reloc_addr & 3)
>     535         {
>     536           char *rel_addr = (char *) reloc_addr;

My dl-machine.h has

      if ((unsigned long) reloc_addr & 3)

I guess you are trying to use an old buggy glibc.

Alan




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I'll try this with my J also to see what happens.  Unfortunately, despite
all the "junk" I brought home, the 700/92 has no keyboard (duh) and I could
not scrounge one today.  Oh well, back to the trash tomorrow.  BTW, if I can
scrounge a DB9<-->DB9 can I use a Reflection connection on my laptop as a
console?  I assume 9600/8/none/1 would be a good place to start?


----- Original Message -----
From: Rafael Herrera <vze26vn8@verizon.net>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Tuesday, November 13, 2001 2:03 AM
Subject: Re: [parisc-linux] Problems of instaling (booting) on a 715/75


> I'd suggest you boot the cd image (palinux-0.9.2.iso) using the serial
> console. I have the same system and the STI console does not work with
> that cd.
>
> As soon as you have a minimal system running, switch the kernel image in
> /boot for this one:
>
> ftp://ftp.parisc-linux.org/kernels/vmlinux-32-20011008
>
> Edit the /etc/palo.conf accordingly, re-run palo and reboot. I
> experienced scsi problems with the kernel in the cd image.
> --
>       Rafael
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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This is just an update on this issue....

32bit kernels from CVS head (>= 2.4.14-pa1) should now compile and
boot again. There still may be hidden issues (as always :-)),
but basically it will work.

Helge

On Monday 12 November 2001 17:34, Grant Grundler wrote:
> Rafael Herrera wrote:
> > I tried to update the sources with the latest CVS version, but the
> > compilation failed. The file */arch/parisc/kernel/pdc_cons.c and
> > */kernel/printk.c have a conflict. The variable log_size used in
> > pdc_cons.c is not defined in printk.c. The kernel does not build.
>
> The merge to 2.4.14 isn't finished yet.
> Despite working around the log_size issue, it still doesn't boot.
>
> Watch the parisc-linux-cvs mailing list for progress on this.
> We'll probably post an "It works" msg here too.
>
> grant




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Yes the kernel boots, I can see the boot messages, but the STI console 
still does not accept keyboard input at the login prompt at the end.

There is still an inconsistency between the pdc_con.c and printk.c 
files. pdc_cons.c uses the variables log_end and con_start, which are 
declared static in printk.c. Commenting out their use in pdc_con.c lets 
me finish the compilation, but as I said I can't type anything.

By the way, I can see the keyboard interrupts in /proc.
-- 
      Rafael




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"Craig D. Lansing" wrote:
> BTW, if I can
> scrounge a DB9<-->DB9 can I use a Reflection connection on my laptop as a
> console?  I assume 9600/8/none/1 would be a good place to start?

Under linux, definitely. Try to find a real HP DB9-DB9 cable
as the only time I had seen problems was when someone used a cheapo
off-brand cable that didn't run all the lines.

9600-8N1 is correct default for all parisc machines that support
serial console.

If you have problems with this, check the mail archives first please.

grant



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From: Strohmayer Peter Hans <peter-hans.strohmayer@sbs.at>
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Hello,

i have made a CD from the ISO.image and now i will install
Debian on a C180 with a 4GB Harddisk.
The partitionlayout is like the README, 20MB for palo and
1800MB for root, 800MB for swap and rest for anything.

But i have serious troubles to install the base system to the
disk, the machine hang with a dumb while copying the *.deb
packages to disk from CD.

Is there something special what should do on a C180?

Greetings from Austria,

Ing. Peter Hans Strohmayer
SBS ORS BOS CDU GUD

* Tel:    +43 5 1707 47564
*  Fax:   +43 5 1707 57560
* E-Mail: mailto:peter-hans.strohmayer@sbs.at




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Installing Debian on a C180
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On Wed, Nov 14, 2001 at 03:25:22PM +0100, Strohmayer Peter Hans wrote:
> Hello,
> 
> i have made a CD from the ISO.image and now i will install
> Debian on a C180 with a 4GB Harddisk.
> The partitionlayout is like the README, 20MB for palo and
> 1800MB for root, 800MB for swap and rest for anything.
> 
> But i have serious troubles to install the base system to the
> disk, the machine hang with a dumb while copying the *.deb
> packages to disk from CD.
> 
> Is there something special what should do on a C180?

We expect to have a new ISO real soon now (yes, I know we have
been saying that for a couple of months), could you wait and
try that when it is available please?

In the meantime, using serial console and capturing the boot
messages for us might be interesting.

Cheers,
  Richard




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Subject: Re: [parisc-linux] Installing Debian on a C180
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I attempted to install debian on my C180 a while ago.  I had to do a
number of umpleaseant hacks includeing disableing one of the two scsi
drivers in the kernel.  Did you run into that problem or did it go
relativly smoothly until the copying?
	Nick

On Wed, 14 Nov 2001, Strohmayer Peter Hans wrote:

> Hello,
> 
> i have made a CD from the ISO.image and now i will install
> Debian on a C180 with a 4GB Harddisk.
> The partitionlayout is like the README, 20MB for palo and
> 1800MB for root, 800MB for swap and rest for anything.
> 
> But i have serious troubles to install the base system to the
> disk, the machine hang with a dumb while copying the *.deb
> packages to disk from CD.
> 
> Is there something special what should do on a C180?
> 
> Greetings from Austria,
> 
> Ing. Peter Hans Strohmayer
> SBS ORS BOS CDU GUD
> 
> * Tel:    +43 5 1707 47564
> *  Fax:   +43 5 1707 57560
> * E-Mail: mailto:peter-hans.strohmayer@sbs.at
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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From: joel.soete@freebel.net
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Subject: [parisc-linux] 2.4.14-pa1 seems to works fine on my B180
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Hi all,

For my part 2.4.14-pa1 seems to works fine on my B180L (without or with 
modules).
Kbd unplug replug ok.
XFree86 seems to works as well as with 2.4.9 (personnaly I run Xfce-3.8.11 with 
the kind fondecran from ESIEE: nice).

Congratulation to all (a so nice job in so short time :))
      Joel


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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] 2.4.14-pa1 seems to works fine on my B180
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joel.soete@freebel.net wrote:
> Hi all,
> 
> For my part 2.4.14-pa1 seems to works fine on my B180L (without or with 
> modules).

Astro based machines (eg C3000) still HPMC with:
	sync; cd/tmp; cp /boot/vmlinux .; sync;

I found one nit in sba_dma_supported() but that's not the problem.
Has anyone tried C200 (or similar? ie something with ccio)

thanks,
grant



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From: Rafael Herrera <vze26vn8@verizon.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting with the STI console in a 715/75 (works)
Date: Wed, 14 Nov 2001 14:52:06 -0500
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Hello all,

My STI console now works under 2.4.14-pa1. Good work!

-- 
      Rafael




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From: Rafael Herrera <vze26vn8@verizon.net>
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Subject: [parisc-linux] XFree86 and the 715/75 doesn't work
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This is a multi-part message in MIME format.
--------------090207000509040806010706
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

The next thing I'd like to ask is support for X in the 715/75. I 
configured the kernel with "make oldconfig", Starting X generates the 
attached log. My XF86Config is also attached.

-- 
      Rafael

--------------090207000509040806010706
Content-Type: text/plain;
 name="XFree86.0.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="XFree86.0.log"


This is a pre-release version of XFree86, and is not supported in any
way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
please check the latest version in the XFree86 CVS repository
(http://www.XFree86.Org/cvs)

XFree86 Version 4.1.0.1 / X Window System
(protocol Version 11, revision 0, vendor release 6510)
Release Date: xx August 2001
	If the server is older than 6-12 months, or if your card is
	newer than the above date, look for a newer version before
	reporting problems.  (See http://www.XFree86.Org/FAQ)
Build Operating System: Linux 2.4.0-pa43 parisc64 [ELF] 
(==) Log file: "/var/log/XFree86.0.log", Time: Wed Nov 14 02:15:15 2001
(==) Using config file: "/etc/X11/XF86Config"
Markers: (--) probed, (**) from config file, (==) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) ServerLayout "Simple Layout"
(**) |-->Screen "Screen 1" (0)
(**) |   |-->Monitor "lcd"
(**) |   |-->Device "fbdev"
(**) |-->Input Device "Mouse1"
(**) |-->Input Device "Keyboard1"
(**) Option "AutoRepeat" "500 30"
(**) Option "XkbRules" "xfree86"
(**) XKB: rules: "xfree86"
(**) Option "XkbModel" "hphil"
(**) XKB: model: "hphil"
(**) Option "XkbLayout" "us"
(**) XKB: layout: "us"
(==) Keyboard: CustomKeycode disabled
(**) FontPath set to "/usr/X11R6/lib/X11/fonts/misc/,/usr/X11R6/lib/X11/fonts/75dpi/:unscaled,/usr/X11R6/lib/X11/fonts/100dpi/:unscaled,/usr/X11R6/lib/X11/fonts/Type1/,/usr/X11R6/lib/X11/fonts/Speedo/,/usr/X11R6/lib/X11/fonts/75dpi/,/usr/X11R6/lib/X11/fonts/100dpi/"
(**) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(--) using VT number 7

(WW) Cannot open APM
(EE) No OS PCI support available
(II) Addressable bus resource ranges are
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
	[1] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) OS-reported resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) OS-reported resource ranges after removing overlaps with PCI:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) All system resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
	mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
(II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,
	pm2, pm, 300sx, 500tx, mx, delta
	S3VIdentify
(II) S3VIRGE: driver (version 1.6.0) for S3 ViRGE chipsets: virge, 86C325,
	virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
	86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
	trio 3d/2x, 86C362, 86C368
(II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
	SIS300, SIS630, SIS540
(II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
	Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
	Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
	TwisterK
(II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, cyber9388,
	cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
	tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
	providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
	cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
	cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
	ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
	ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
	3dfx Voodoo3, 3dfx Voodoo5
(II) FBDev: driver for framebuffer: fbdev, afb
(II) ATI: ATI driver (version 6.3.6) for chipsets: ati
(II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
	ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
	ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
	ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
	ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
	ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
	ATI Rage 128 Mobility ML (AGP)
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
	ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
	ATI Radeon VE (AGP)
(II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,
	imstt3d
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) v4l driver for Video4Linux
	S3VProbe begin
(EE) No devices detected.

Fatal server error:
no screens found

When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to submit@bugs.debian.org.


--------------090207000509040806010706
Content-Type: text/plain;
 name="XF86Config"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="XF86Config"

#
# Copyright (c) 1999 by The XFree86 Project, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
# THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
# OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
# Except as contained in this notice, the name of the XFree86 Project shall
# not be used in advertising or otherwise to promote the sale, use or other
# dealings in this Software without prior written authorization from the
# XFree86 Project.
#

# **********************************************************************
# Refer to the XF86Config(4/5) man page for details about the format of
# this file.
# **********************************************************************

# **********************************************************************
# Module section -- this  section  is used to specify
# which dynamically loadable modules to load.
# **********************************************************************
#
Section "Module"

# This loads the DBE extension module.

    Load        "dbe"   # Double buffer extension

# This loads the miscellaneous extensions module, and disables
# initialisation of the XFree86-DGA extension within that module.
    SubSection  "extmod"
      Option    "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection

# This loads the Type1 and FreeType font modules
    Load        "type1"
    Load        "freetype"

# This loads the GLX module
#    Load       "glx"

EndSection

# **********************************************************************
# Files section.  This allows default font and rgb paths to be set
# **********************************************************************

Section "Files"

# The location of the RGB database.  Note, this is the name of the
# file minus the extension (like ".txt" or ".db").  There is normally
# no need to change the default.

    RgbPath     "/usr/X11R6/lib/X11/rgb"

# Multiple FontPath entries are allowed (which are concatenated together),
# as well as specifying multiple comma-separated entries in one FontPath
# command (or a combination of both methods)
#
# If you don't have a floating point coprocessor and emacs, Mosaic or other
# programs take long to start up, try moving the Type1 and Speedo directory
# to the end of this list (or comment them out).
#

#    FontPath   "/usr/X11R6/lib/X11/fonts/local/"
    FontPath   "/usr/X11R6/lib/X11/fonts/misc/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/Type1/"
    FontPath   "/usr/X11R6/lib/X11/fonts/Speedo/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/"

# The module search path.  The default path is shown here.

#    ModulePath "/usr/X11R6/lib/modules"

EndSection

# **********************************************************************
# Server flags section.
# **********************************************************************

Section "ServerFlags"

# Uncomment this to cause a core dump at the spot where a signal is
# received.  This may leave the console in an unusable state, but may
# provide a better stack trace in the core dump to aid in debugging

#    Option "NoTrapSignals"

# Uncomment this to disable the <Crtl><Alt><BS> server abort sequence
# This allows clients to receive this key event.

#    Option "DontZap"

# Uncomment this to disable the <Crtl><Alt><KP_+>/<KP_-> mode switching
# sequences.  This allows clients to receive these key events.

#    Option "Dont Zoom"

# Uncomment this to disable tuning with the xvidtune client. With
# it the client can still run and fetch card and monitor attributes,
# but it will not be allowed to change them. If it tries it will
# receive a protocol error.

#    Option "DisableVidModeExtension"

# Uncomment this to enable the use of a non-local xvidtune client.

#    Option "AllowNonLocalXvidtune"

# Uncomment this to disable dynamically modifying the input device
# (mouse and keyboard) settings.

#    Option "DisableModInDev"

# Uncomment this to enable the use of a non-local client to
# change the keyboard or mouse settings (currently only xset).

#    Option "AllowNonLocalModInDev"

EndSection

# **********************************************************************
# Input devices
# **********************************************************************

# **********************************************************************
# Core keyboard's InputDevice section
# **********************************************************************

Section "InputDevice"

    Identifier  "Keyboard1"
    Driver      "Keyboard"
# For most OSs the protocol can be omitted (it defaults to "Standard").
# When using XQUEUE (only for SVR3 and SVR4, but not Solaris),
# uncomment the following line.

#    Option     "Protocol"      "Xqueue"

    Option "AutoRepeat" "500 30"

# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
#    Option     "Xleds"      "1 2 3"

#    Option "LeftAlt"     "Meta"
#    Option "RightAlt"    "ModeShift"

# To customise the XKB settings to suit your keyboard, modify the
# lines below (which are the defaults).  For example, for a non-U.S.
# keyboard, you will probably want to use:
#    Option "XkbModel"    "pc102"
# If you have a US Microsoft Natural keyboard, you can use:
#    Option "XkbModel"    "microsoft"
#
# Then to change the language, change the Layout setting.
# For example, a german layout can be obtained with:
#    Option "XkbLayout"   "de"
# or:
#    Option "XkbLayout"   "de"
#    Option "XkbVariant"  "nodeadkeys"
#
# If you'd like to switch the positions of your capslock and
# control keys, use:
#    Option "XkbOptions"  "ctrl:swapcaps"

# These are the default XKB settings for XFree86
#    Option "XkbRules"    "xfree86"
#    Option "XkbModel"    "pc101"
#    Option "XkbLayout"   "us"
#    Option "XkbVariant"  ""
#    Option "XkbOptions"  ""

#    Option "XkbDisable"

    Option "XkbRules"   "xfree86"
    Option "XkbModel"   "hphil"
    Option "XkbLayout"  "us"
#    Option "XkbVariant"        "nodeadkeys"

EndSection

# **********************************************************************
# Core Pointer's InputDevice section
# **********************************************************************

Section "InputDevice"

# Identifier and driver

    Identifier  "Mouse1"
    Driver      "mouse"
    Option "Protocol"    "PS/2"
    Option "Device"      "/dev/mouse"

# When using XQUEUE, comment out the above two lines, and uncomment
# the following line.

#    Option "Protocol"  "Xqueue"

# Baudrate and SampleRate are only for some Logitech mice. In
# almost every case these lines should be omitted.

#    Option "BaudRate"  "9600"
#    Option "SampleRate"        "150"

# Emulate3Buttons is an option for 2-button Microsoft mice
# Emulate3Timeout is the timeout in milliseconds (default is 50ms)

#    Option "Emulate3Buttons"
#    Option "Emulate3Timeout"    "100"

# ChordMiddle is an option for some 3-button Logitech mice

#    Option "ChordMiddle"

EndSection

# **********************************************************************
# Monitor section
# **********************************************************************

# Any number of monitor sections may be present

Section "Monitor"

    Identifier  "lcd"

    HorizSync   61-78
    VertRefresh 57-73
    UseModes     "Modes[1]"
EndSection

Section "Modes"
  Identifier   "Modes[1]"
  Modeline      "1280x1024" 135 1280 1344 1536 1728 1024 1027 1030 1085
EndSection

# **********************************************************************
# Graphics device section
# **********************************************************************

Section "Device"
    Identifier  "fbdev"
    Driver      "fbdev"
    #VideoRam    8192
    # Insert Clocks lines here if appropriate
EndSection

# **********************************************************************
# Screen sections
# **********************************************************************

# Any number of screen sections may be present.  Each describes
# the configuration of a single screen.  A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.
Section "Screen"
    Identifier  "Screen 1"
    Device      "fbdev"
    Monitor     "lcd"
    DefaultDepth 8

    Subsection "Display"
        Depth       8
        Modes       "1280x1024"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes       "1280x1024"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes       "1024x768"
        ViewPort    0 0
    EndSubsection
EndSection

# **********************************************************************
# ServerLayout sections.
# **********************************************************************

# Any number of ServerLayout sections may be present.  Each describes
# the way multiple screens are organised.  A specific ServerLayout
# section may be specified from the X server command line with the
# "-layout" option.  In the absence of this, the first section is used.
# When now ServerLayout section is present, the first Screen section
# is used alone.

Section "ServerLayout"

# The Identifier line must be present
    Identifier  "Simple Layout"

# Each Screen line specifies a Screen section name, and optionally
# the relative position of other screens.  The four names after
# primary screen name are the screens to the top, bottom, left and right
# of the primary screen.  In this example, screen 2 is located to the
# right of screen 1.

    Screen "Screen 1"

# Each InputDevice line specifies an InputDevice section name and
# optionally some options to specify the way the device is to be
# used.  Those options include "CorePointer", "CoreKeyboard" and
# "SendCoreEvents".

    InputDevice "Mouse1" "CorePointer"
    InputDevice "Keyboard1" "CoreKeyboard"

EndSection


--------------090207000509040806010706--




From - Thu Nov 08 21:20:24 2018
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From: Albert Strasheim <fullung@ilink.nis.za>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.14-pa1 seems to works fine on my B180
Date: Thu, 15 Nov 2001 00:41:48 +0200
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Hello,

The latest snapshot on ftp.parisc-linux.org seems to be:

linux-20011108.tar.gz   08-Nov-2001 15:58  26.8M

Why aren't snapshots being generated automatically anymore? I don't have
access to CVS, so that's why I need the snapshots; and I guess someone
wanting to start keeping current with CVS would prefer downloading a
snapshot and updating that, rather than checking out from scratch?

Regards,

Albert

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From: Aaron Macks <aaronm@cs.brandeis.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] {OT} HP 9000/700 Snake
Date: Wed, 14 Nov 2001 18:24:57 -0500
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I recently came into posession of a HP 9000/700 series (what's written
on the front plate).  I know nothing about it but that I believe that
it's codename was snake.  Can anyone tell me anything?
Aaron
-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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Subject: rsync for CVS repository (was: Re: [parisc-linux] 2.4.14-pa1 seems to works fine on my B180)
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On Thu, 2001-11-15 00:41:48 +0200, Albert Strasheim <fullung@ilink.nis.za>
wrote in message <20011115004148.C21312@dogbert.localdomain>:
> The latest snapshot on ftp.parisc-linux.org seems to be:
> 
> linux-20011108.tar.gz   08-Nov-2001 15:58  26.8M
> 
> Why aren't snapshots being generated automatically anymore? I don't have
> access to CVS, so that's why I need the snapshots; and I guess someone

...which remembers me that I emailed with Grant these days about
making the CVS repository available via rsync. He also thought that
that would be a nice thing to have... I volunteered to do the setup
if time is all off. How about that?

MfG, JBG

-- 
Jan-Benedict Glaw   .   jbglaw@lug-owl.de   .   +49-172-7608481
	http://lug-owl.de/~jbglaw/software/snapshot2cvs/



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Jan-Benedict Glaw wrote:
> ...which remembers me that I emailed with Grant these days about
> making the CVS repository available via rsync. He also thought that
> that would be a nice thing to have... I volunteered to do the setup
> if time is all off. How about that?

I've heard nothing back about this.  Sorry - I can't autonomously give
out logins to the cvs machine or I would have already.
Do you have a URL for a short how-to?
I might take a crack at it if no one else with access speaks up.

grant



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From: Rafael Herrera <vze26vn8@verizon.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: rsync for CVS repository
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I set up my home computer as an rsync server to mirror some stuff to 
school. This is a PC running suse 7.2. If i remember correctly, the 
steps were:

1. Install it, of course.
2. Enable the server in /etc/inetd.conf

rsync   stream  tcp     nowait  root    /usr/sbin/tcpd  /usr/sbin/rsyncd 
--daemon

3. Edit the configuration file, /etc/rsync.conf. Here is an example of 
an anonymous setting:

gid = users
uid = nobody
read only = true
use chroot = true
transfer logging = true
log format = %h %o %f %l %b
log file = /var/log/rsyncd.log

[Example]
        path = /home/Example
        comment = An Example

-- 
      Rafael




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From: Paul Bame <bame@riverrock.org>
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Subject: Re: [parisc-linux] Re: rsync for CVS repository
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4. Adjust, test, and maintain the firewall
5. Write and maintain a blurb for the parisc-linux.org web site so
   more than one person can use this.
6. Answer questions from people who don't know how to use rsync or
   who have problems.  Some people will try it because it's there, not
   because it is useful for them.

Sorry I was unresponsive about this but I'm just not real excited about
it.  I was tempted to say "find 3 more people who will say they will
use this service and then let's do it".

	-P



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Paul Bame wrote:

> 6. Answer questions from people who don't know how to use rsync or
>    who have problems.  Some people will try it because it's there, not
>    because it is useful for them.


I use this command:

cd /your/localCVScopy/      
rsync -avzc --progress --stats thepalinux.host.com::Example .


will retrieve the Example directory in archive and compressed mode, a 
little verbose too. Note that this will overwrite any modified file you 
have in your tree.

-- 
      Rafael




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Hello,

It might be a 720/50 or something similiar (which works great now! :-))

Linux version 2.4.9-pa79 (root@bob) (gcc version 3.0.2 (Debian)) #1 Fri Nov 9 13:36:26 UTC 2001
FP[0] enabled: Rev 3 Model 0
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model   00002000 00000481 00000000 00000000 77544852 000011f4 00000004 0000000d 00000000
vers    00000003
CPUID   vers 0 rev 0
model   9000/720

I'm going to attempt to compile 2.4.14-pa[12] shortly.

Regards,

Albert

On Wed, 14 Nov 2001, Aaron Macks wrote:

> I recently came into posession of a HP 9000/700 series (what's written
> on the front plate).  I know nothing about it but that I believe that
> it's codename was snake.  Can anyone tell me anything?


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On Wed, Nov 14, 2001 at 12:39:07PM -0700, Grant Grundler wrote:
> joel.soete@freebel.net wrote:
> > Hi all,
> > 
> > For my part 2.4.14-pa1 seems to works fine on my B180L (without or with 
> > modules).
> 
> Astro based machines (eg C3000) still HPMC with:
> 	sync; cd/tmp; cp /boot/vmlinux .; sync;
> 
> I found one nit in sba_dma_supported() but that's not the problem.
> Has anyone tried C200 (or similar? ie something with ccio)
> 
I'd be willing to try, but will the new kernel build with the old, pre
'don't apt-get upgrade!!' userland tools?

Thanks,
Jurriaan
-- 
Holed up in your little room, we talk for hour on empty hour,
pacing up and down between the walls that we have built ourselves.
	New Model Army - Long Goodbye
GNU/Linux 2.4.15-pre4 on Debian/Alpha 64-bits 990 bogomips load:0.08 0.21 0.15



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Subject: Re: [parisc-linux] 2.4.14-pa1 seems to works fine on my B180
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Hello Jurrian,

Quoting Jurriaan on Alpha <thunder7@xs4all.nl>:

> On Wed, Nov 14, 2001 at 12:39:07PM -0700, Grant Grundler wrote:
> > joel.soete@freebel.net wrote:
> > > Hi all,
> > > 
> > > For my part 2.4.14-pa1 seems to works fine on my B180L (without or
> with 
> > > modules).
> > 
> > Astro based machines (eg C3000) still HPMC with:
> > 	sync; cd/tmp; cp /boot/vmlinux .; sync;
> > 
> > I found one nit in sba_dma_supported() but that's not the problem.
> > Has anyone tried C200 (or similar? ie something with ccio)
> > 
> I'd be willing to try, but will the new kernel build with the old, pre
> 'don't apt-get upgrade!!' userland tools?

You could be confident, I successfully re-compile the kernel from a cvs 
checkout on my B180 natively (what I do from some month now) with a running 
kernel 2.4.9-pa78.

Have a nice kernel :<)) ,
        Joel


> 
> Thanks,
> Jurriaan
> -- 
> Holed up in your little room, we talk for hour on empty hour,
> pacing up and down between the walls that we have built ourselves.
> 	New Model Army - Long Goodbye
> GNU/Linux 2.4.15-pre4 on Debian/Alpha 64-bits 990 bogomips load:0.08
> 0.21 0.15
> 
> 


-------------------------------------------------
This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)



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From: rbradetich@uswest.net (Ryan Bradetich)
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Subject: Re: [parisc-linux] 2.4.14-pa1 seems to works fine on my B180
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On Wed, Nov 14, 2001 at 12:39:07PM -0700, Grant Grundler wrote:
> joel.soete@freebel.net wrote:
> > Hi all,
> > 
> > For my part 2.4.14-pa1 seems to works fine on my B180L (without or with 
> > modules).
> 
> Astro based machines (eg C3000) still HPMC with:
> 	sync; cd/tmp; cp /boot/vmlinux .; sync;
> 
> I found one nit in sba_dma_supported() but that's not the problem.
> Has anyone tried C200 (or similar? ie something with ccio)

Yes, I've hooked up some FW/Diff disk behind the Bluefish card in
the C200 trying to duplicate the scsi error seen by other people,
I have effectively been doing this in a continous loop on serveral
disks in parallel ... works for me(tm).

mkp is not seeing the disk corruption using the 2.4.14-pa1 kernel
on his C160 either, which used to corrupt this way also....

Not that this is much help, but hopefully will provide a data
point ....

- Ryan

> 
> thanks,
> grant
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 



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Subject: Re: [parisc-linux] 2.4.14-pa1 seems to works fine on my B180
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Indeed ;-)
I would like to get my hands on a recent snapshot as well.
Thanks.

Kenneth

----- Original Message ----- 
From: "Albert Strasheim" <fullung@ilink.nis.za>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Wednesday, November 14, 2001 11:41 PM
Subject: Re: [parisc-linux] 2.4.14-pa1 seems to works fine on my B180





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Hello parisc,

I see my 720/50 has a hole in the back labelled "Audio." What kind of
soundcard (or PC speaker :-)) is this, and is it supported (I think
not?). Also, what needs to be done to get it working. Are there specs
available?

Running mpg123 on this beast would be way cool. Hehe.

Regards,

Albert



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> I see my 720/50 has a hole in the back labelled "Audio." What kind of
> soundcard (or PC speaker :-)) is this, and is it supported (I think
> not?). Also, what needs to be done to get it working. Are there specs
> available?

Sorry, the 720/730/750 doesn't have that kind of audio hardware. They
are the only parisc workstations without audio hardware. The 705/710
had a "voice quality" audio codec, which did 8Khz sample rate only.
Everything else after that had audio hardware capable of CD quality
stereo audio.

That jack has always been misleading. It is the beeper output. It is
only capable of making tones and noise. It has 3 tone channels and
one noise channel.

>
> Running mpg123 on this beast would be way cool. Hehe.

Well, it isn't completely impossible. There was an SGC card made that
was used for customers who upgraded from Series 400 machines (m68k based).
You switched out the motherboard and added this card which had both
graphics and CD quality audio on it. The upgraded machine was a variant
of a 715 (old), either 715s or 715t. Inside HP people ordered just
the graphics card for their 720/730 machines. I don't know if external
customers were able to do that. HP-UX actually supported the audio on
that card in a 720/730.

Note that the PDC on a 720 doesn't know about that card, so it won't be
found during device discovery (although the graphics part would be
indentified, so potentially the hversion could be used to determine if
it was a graphics card that had the audio support on it). Otherwise,
the only way of detecting it is to to a pdc address valid probe to the
right address and see if it responds (which is what HP-UX did when
someone tried to open the audio device, and no audio device had already
been discovered).

But you have to find one of those cards first!

John Marvin
jsm@fc.hp.com



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On Wed, 2001-11-14 19:47:05 -0700, Paul Bame <bame@riverrock.org>
wrote in message <m164CYT-000PwuC@bame.riverrock.org>:
> it.  I was tempted to say "find 3 more people who will say they will
> use this service and then let's do it".

I think it won't be that hard to find 3 people willing to use
it. It was my idea to install it, so, of course, I'm willing to
use it (I already use this for the MIPS linux CVS tree at
oss.sgi.com and I absolutely *love* it!).

MfG, JBG

-- 
Jan-Benedict Glaw   .   jbglaw@lug-owl.de   .   +49-172-7608481
	http://lug-owl.de/~jbglaw/software/snapshot2cvs/



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Hello John and parisc,

On Thu, 15 Nov 2001, John Marvin wrote:

> > I see my 720/50 has a hole in the back labelled "Audio." What kind of
> > soundcard (or PC speaker :-)) is this, and is it supported (I think
> > not?). Also, what needs to be done to get it working. Are there specs
> > available?
>=20
> Sorry, the 720/730/750 doesn't have that kind of audio hardware. They
> are the only parisc workstations without audio hardware. The 705/710
> had a "voice quality" audio codec, which did 8Khz sample rate only.
> Everything else after that had audio hardware capable of CD quality
> stereo audio.
>=20
> That jack has always been misleading. It is the beeper output. It is
> only capable of making tones and noise. It has 3 tone channels and
> one noise channel.

So, how do I make it sing? :-)

Regards,

Albert

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From: "Neulinger, Nathan" <nneul@umr.edu>
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Subject: RE: [parisc-linux] Re: rsync for CVS repository
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I'm not sure how useful rsync would be for duplicating a cvs repository
except for mirroring purposes.

If you want to do your own commits locally - you're probably better off
doing a vendor branch/frequent imports, or using CVSup. 

If you just want a fast local copy of the repository (say if you're behind a
slow link), then rsync would be useful. But cvsup should also let you do
that easily.

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216


> -----Original Message-----
> From: Rafael Herrera [mailto:vze26vn8@verizon.net] 
> Sent: Wednesday, November 14, 2001 10:20 PM
> To: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Re: rsync for CVS repository
> 
> 
> Paul Bame wrote:
> 
> > 6. Answer questions from people who don't know how to use rsync or
> >    who have problems.  Some people will try it because it's 
> there, not
> >    because it is useful for them.
> 
> 
> I use this command:
> 
> cd /your/localCVScopy/      
> rsync -avzc --progress --stats thepalinux.host.com::Example .
> 
> 
> will retrieve the Example directory in archive and compressed mode, a 
> little verbose too. Note that this will overwrite any 
> modified file you 
> have in your tree.
> 
> -- 
>       Rafael
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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Subject: [parisc-linux] Linux/PA-RISC speed (was Re: C240 Graphics, 64bit kernel and more)
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Jurriaan Kalkman wrote:


>>Are you aware of any other gcc/binutils bugs or should
>>gcc/binutils NOW create proper executables for pa2.0 and
>>pa1.1 (including the old CPUs like 730's PCX-S CPU) ?
>>
> 
> There are still bugs.


But Grand Grundler wrote:

| Yes - should work fine. Note one can build 32-bit PA2.0 binaries.
| The scheduling and insns are optimized for PA2.0 CPU but will
| run in "narrow" mode.

Mhh who's right ? I tend to believe Grand.

Of course there are bugs in binutils/gcc. But are there KNOW bugs/issues
a software developer (not a kernel freak) has to be aware of ?
What about glibc ?
Are threads fully supported ? Are gcc's ObjC, Java and C++ compilers
also working ?


>>I can imagine that the Linux/HPPA kernel is not very optimized yet
>>(can't compare the speed on my 730 with HP/UX since I don't
>>have the OS software anymore ...). Is the speed difference just a
>>few percent or can you 'feel' it (mhh, fuzzy question) ?
>>
>>
> I can only say that compiling a kernel on my C200 takes about 2 times
> as long as on my alpha (21164, 500 Mhz, 2 Mb cache). I feel it should
> be faster.


That's odd.
A 21164/500MHz (not 21164A or 21164PC) is slower according to
Spec_INT95, Spec_FP95 and the Spec_base(INT|FP)95 variants.

Indeed the benchmarks say that the Alpha is about 50% slower for FP stuff

and just a little bit slower for INT stuff (compared to a C240 HP/UX).

Moreover, according to SPEC:
If you compare it to a Intel CPU, the PA8200/236Mhz seem to be as fast as
a Pentium II 400-450 for integer operations and as fast as a
Pentium III 750-800 for floating point operations.

Well, lies, bigger lies/statistics and benchmarks.
Don't trust them.
Nevertheless a factor of 2 shouldn't occur. It's a too big number.
Is it just for compiling the kernel or for every application ?

greetings Max


> Good luck,
> Jurriaan






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In message * of Vol 1 #372, Jurriaan asks if anyone has tried a copy on
FWSCSI in a C200.
I just got mine up with FWSCSI and tried the same copy - no HPMC.
Now, this is 2.4.9pa79, nor one of the 2.4.14 kernels but it does work!

By the way does anyone know why an FX4 would not be set up. The message is:

Trying PCI STI ROM at f1e00000, PCI hpa at f6000000
I'm not trying to set up the PCI graphic card now... It would freeze your
machine
Unable to handle STI device 'PCI device 103c:1008 (Hewlett-Packard Company)'

I was given to beleive that sticon worked on an FX4 with 2.4.9pa64 or later!

Regards, Herb





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>In message * of Vol 1 #372, Jurriaan asks if anyone has tried a copy on
>FWSCSI in a C200.

that would be Grant, not me!

>I just got mine up with FWSCSI and tried the same copy - no HPMC.
>Now, this is 2.4.9pa79, nor one of the 2.4.14 kernels but it does work!
>

I just typed=20

sync; cp /boot/vmlinux* ./; sync

on my C200 running 2.4.14-pa2 and no HPMC occurred. The disk is the only
disk on the FWSCSI chain (internal).

>By the way does anyone know why an FX4 would not be set up. The message =
is:
>
>Trying PCI STI ROM at f1e00000, PCI hpa at f6000000
>I'm not trying to set up the PCI graphic card now... It would freeze your
>machine
>Unable to handle STI device 'PCI device 103c:1008 (Hewlett-Packard =
Company)'
>
I get that message too; and I also wonder what it means exactly.

Good luck,
Jurriaan




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> Of course there are bugs in binutils/gcc. But are there KNOW bugs/issues
> a software developer (not a kernel freak) has to be aware of ?

These are the main gcc issues that I am aware of:

1) 32-bit ABI -- 5-7 byte structures are not passed correctly per ABI.
2) I would say avoid "-O3" on mainline at the moment.  3.0.2 is better.
   The cause of the bug is unknown.

> What about glibc ?
> Are threads fully supported ? Are gcc's ObjC, Java and C++ compilers
> also working ?

ObjC builds and testsuite results are similar to i386.  Is anybody
actually using it?  I believe that the library is installed in the
wrong location.  There may still be issues with the testsuite using
the installed library rather than the build library.

Java: the library doesn't build.  Needs porting for both parisc-linux
and hpux, I believe.

C++: lack of weak symbol support causes some problems with template
instantiation under hpux.  Not sure how this is working under parisc-linux
but weak support should help.

Fortran: there are some bugs that need work on main.  Stick with 3.0.x
for now.

At least based on the testsuite results, C++ STL threads work under hpux.
Don't know of any issues under linux.  The primary problem is locking.

It would be useful if the gcc testsuite were run on various parisc-linux
linux configurations: 1.X and 2.0 processors, 32 and 64 bit, gcc mainline
and 3.0.2.  Then, post the results using the contrib/test-summary script to
gcc-testresults@gcc.gnu.org.  This would help a lot to determine the status
of things for gcc under parisc-linux.  Volunteer(s)?

I am planning to set up a 64-bit test system in the near future.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: Re: [parisc-linux] Linux/PA-RISC speed (was Re: C240 Graphics, 64bit kernel and more)
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> It would be useful if the gcc testsuite were run on various parisc-linux
> linux configurations: 1.X and 2.0 processors, 32 and 64 bit, gcc mainline
> and 3.0.2.  Then, post the results using the contrib/test-summary script to
> gcc-testresults@gcc.gnu.org.  This would help a lot to determine the status
> of things for gcc under parisc-linux.  Volunteer(s)?

As part of building the Debian gcc packages the testsuite is run.
Currently there are about 290-odd failures (across gcc/g++/libstdc++). I
will look into posting the results.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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On Thursday 15 November 2001 16:33, Jurriaan Kalkman wrote:
> >By the way does anyone know why an FX4 would not be set up. The message is:
> >
> >Trying PCI STI ROM at f1e00000, PCI hpa at f6000000
> >I'm not trying to set up the PCI graphic card now... It would freeze your
> >machine
> >Unable to handle STI device 'PCI device 103c:1008 (Hewlett-Packard
> > Company)'
>
> I get that message too; and I also wonder what it means exactly.

It means that it doesn't try to start the sticon/stifb driver for your card.
Change the "#if 1" to "#if 0" in drivers/video/sti/sticore.c, line 926, recompile
and boot again - then please let me know if it crashes for you or not.
I once inserted that check because the sticon/stifb driver crashes with the 
A4977A Visualize EG PCI card in my c3000. If it works for you we could try
to find a better solution.

Greetimgs,
Helge




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It's been identified(tentatively) as some flavor of 750.  How's the 
support for these beasts?
Aaron

-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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Subject: Re: [parisc-linux] 2.4.14-pa1 seems to works fine on my B180
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Ryan Bradetich wrote:
...
> Not that this is much help, but hopefully will provide a data
> point ....

I found the bug in sba and it seems that ccio has the
same bug. The basic problem was coalescing of DMA mapping
requests was resulting in DMA requests bigger than DMA_CHUNK_SIZE.

thanks to all who responded.

grant

ps. I found the bug pretty quickly once I enabled ASSERTs
  that I had embedded in the code when I wrote it.



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Subject: Re: [parisc-linux] Linux/PA-RISC speed (was Re: C240 Graphics, 64bit kernel and more)
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Markus Grabert wrote:
> Jurriaan Kalkman wrote:
> > There are still bugs.
> 
> But Grand Grundler wrote:
> | Yes - should work fine. Note one can build 32-bit PA2.0 binaries.
> | The scheduling and insns are optimized for PA2.0 CPU but will
> | run in "narrow" mode.
> 
> Mhh who's right ? I tend to believe Grand.

I believe I was talking in general and without regard to the
issues we've recently had (and are *almost* fully resolved).
For the past week or two the apt-get'able toolchain has been
foobar.

> Of course there are bugs in binutils/gcc. But are there KNOW bugs/issues
> a software developer (not a kernel freak) has to be aware of ?
> What about glibc ?
> Are threads fully supported ? Are gcc's ObjC, Java and C++ compilers
> also working ?

Recently, bugs have been fixed in dynamic linking and C++ toolchain.
Just waiting for the fixes to propogate into the debian pkg pool
so we can all apt-get them.


> > I can only say that compiling a kernel on my C200 takes about 2 times
> > as long as on my alpha (21164, 500 Mhz, 2 Mb cache). I feel it should
> > be faster.
> 
> 
> That's odd.
> A 21164/500MHz (not 21164A or 21164PC) is slower according to
> Spec_INT95, Spec_FP95 and the Spec_base(INT|FP)95 variants.
> 
> Indeed the benchmarks say that the Alpha is about 50% slower for FP stuff
> and just a little bit slower for INT stuff (compared to a C240 HP/UX).

Those benchmarks are most likely based on hpux and hpux toolchain.

gcc is not as good at pipelining and other parisc specific
micro optimizations. C240 is PA8200 (iirc) and can execute
2 to 4 insn per cycle under optimal conditions.

grant



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Hello parisc-linux hackers,

I just wanted to throw out a quick note because I've been
waiting for this day for a long time now.... today is the
first day (granted I have not tried recently) the C200+
boot a 64-bit kernel!!

It is not perfect yet, still have a couple of bugs to work
out and fix:
	1. sys32_ioctl: Unknown cmd fd(3) cmd(00004b50) arg(faf00788)
	2. the ncr720 driver seemed to hang when I had a disk
	   attached behind the bluefish card.

but here it is:

demo@vega:~$ uname -a
Linux vega 2.4.14-pa1 #2 Thu Nov 15 12:08:07 MST 2001 parisc64 unknown

- Ryan

P.S. Remember for the C200+ (if someone else wants to play with this,
you need to enable the 32-bit PDC wrappers.).



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Subject: Re: [parisc-linux] {OT} HP 9000/700 Snake
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On Thu, Nov 15, 2001 at 12:55:14PM -0500, Aaron Macks wrote:
> It's been identified(tentatively) as some flavor of 750.  How's the 
> support for these beasts?

i booted a 750 a few weeks ago.  seemed to work fine.  750/755 is a tall case
with a wide base like so:
 _
| |
| |_
|   |
|___|

haven't actually tried a 755, but there's no reason it wouldn't work.

-- 
Revolutions do not require corporate support.



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] 64bit kernels boot on C200 (finally) :)
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On Thu, Nov 15, 2001 at 12:32:03PM -0700, Ryan Bradetich wrote:
> It is not perfect yet, still have a couple of bugs to work
> out and fix:
> 	1. sys32_ioctl: Unknown cmd fd(3) cmd(00004b50) arg(faf00788)
> 	2. the ncr720 driver seemed to hang when I had a disk
> 	   attached behind the bluefish card.
> 
> but here it is:
> 
> demo@vega:~$ uname -a
> Linux vega 2.4.14-pa1 #2 Thu Nov 15 12:08:07 MST 2001 parisc64 unknown

i'm surprised the network works given the number of warnings when compiling
lasi_82596.c with a 64-bit compiler.

btw, does a 64-bit kernel with the 32-bit wrapper options enabled boot
on a PAT PDC box like A500?

-- 
Revolutions do not require corporate support.



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Subject: [parisc-linux] 720/50 update (2.4.14-pa2 boots fine)
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Greetings all,

Just wanted to let you know that my 720/50 succesfully boots multi-user
with 2.4.14-pa2 (finally got palo sorted out).

bob:~# uname -a
Linux bob 2.4.14-pa2 #4 Thu Nov 15 18:38:11 UTC 2001 parisc unknown

Thomas, I think you can add this machine to your "supported" list now.
:-)

Regards,

Albert

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From: Thomas Marteau <marteaut@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] The A500 likes 2.4.14-pa3
Date: Thu, 15 Nov 2001 22:40:12 +0100
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This is a multi-part message in MIME format.
--------------F0E628938ADB2B3342B55372
Content-Type: text/plain; charset=us-ascii
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Hi all,

	A short mail to tell you that I succeed to boot my A500-5X with
2.4.14-pa3 as you will see below!

Last login: Thu Nov 15 22:07:04 2001 on ttyS0
Linux mkhppa3 2.4.14-pa3 #3 Thu Nov 15 22:05:49 CET 2001 parisc64
unknown
demo@mkhppa3:~$ 

	Then, I try with the SMP support. But a function is not implemented for
parisc. cpu_online_map is in init/main.c and coming from the recent
merge, afaik. I commented it. It was compilable. So I give it a shot: 

Last login: Thu Nov 15 22:15:26 2001 on ttyS0
Linux mkhppa3 2.4.14-pa3 #4 SMP Thu Nov 15 22:25:49 CET 2001 parisc64
unknown
demo@mkhppa3:~$ 

That is great but (because there is a but) :

processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8600 (PCX-W+)
cpu MHz         : 550.000000
model           : 9000/800/A500-5X
model name      : Crescendo 550
hversion        : 0x00005d50
sversion        : 0x00000491
I-cache         : 512 KB
D-cache         : 1024 KB (WB)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
bogomips        : 1097.72
software id     : 1555780568

processor       : 1
cpu family      : PA-RISC 2.0
cpu             : PA8600 (PCX-W+)
cpu MHz         : 550.000000
model           : 9000/800/A500-5X
model name      : Crescendo 550
hversion        : 0x00005d50
sversion        : 0x00000491
I-cache         : 512 KB
D-cache         : 1024 KB (WB)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
bogomips        : 1097.72
software id     : 1555780568

Good joke! Everything is ok. I attached the dmesg.

The A500 rulez, Thomas.
ESIEE Team.
--------------F0E628938ADB2B3342B55372
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Linux version 2.4.14-pa3 (compil@spqr) (gcc version 3.0.2 20010829 (prerelease)) #4 SMP Thu Nov 15 22:25:49 CET 2001
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model	00005d50 00000491 00000000 00000001 5cbb53d8 100000f0 00000008 000000b2 000000b2
vers	00000301
cpuid	0000024b
CPUID	vers 18 rev 11
model	9000/800/A500-5X
Total Memory: 1024 Mb
pagetable_init
On node 0 totalpages: 262144
zone(0): 262144 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102
Console: colour dummy device 160x64
Initialized PDC Console for debugging.
Calibrating delay loop... 1097.72 BogoMIPS
Memory: 1005604k available
Dentry-cache hash table entries: 131072 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 65536 (order: 8, 1048576 bytes)
Mount-cache hash table entries: 16384 (order: 6, 262144 bytes)
Buffer-cache hash table entries: 65536 (order: 7, 524288 bytes)
Page-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Searching for devices...
Found devices:
1. Crescendo 550 (0) at 0xfffffffffffa0000 [-96], versions 0x5d5, 0x0, 0x4
2. Crescendo 550 (0) at 0xfffffffffffa2000 [-94], versions 0x5d5, 0x0, 0x4
3. Astro BC Runway Port (12) at 0xfffffffffed00000 [0], versions 0x582, 0x0, 0xb
4. Elroy PCI Bridge (13) at 0xfffffffffed30000 [0/0], versions 0x782, 0x0, 0xa
5. Elroy PCI Bridge (13) at 0xfffffffffed34000 [0/2], versions 0x782, 0x0, 0xa
6. Elroy PCI Bridge (13) at 0xfffffffffed38000 [0/4], versions 0x782, 0x0, 0xa
7. Elroy PCI Bridge (13) at 0xfffffffffed3c000 [0/6], versions 0x782, 0x0, 0xa
8. Crescendo Memory (1) at 0xfffffffffed08000 [8], versions 0x9b, 0x0, 0x9
CPU(s): 2 x PA8600 (PCX-W+) at 550.000000 MHz
SBA found Astro 2.1 at 0xfffffffffed00000
lba version TR4.0 (0x5) found at 0xfffffffffed30000
lba range[2] : ignoring GMMIO (0xfffffff804000000)
lba version TR4.0 (0x5) found at 0xfffffffffed34000
lba range[2] : ignoring GMMIO (0xfffffff904000000)
lba version TR4.0 (0x5) found at 0xfffffffffed38000
lba range[2] : ignoring GMMIO (0xfffffffa04000000)
lba version TR4.0 (0x5) found at 0xfffffffffed3c000
lba range[2] : ignoring GMMIO (0xfffffffb04000000)
POSIX conformance testing by UNIFIX
SMP: bootstrap CPU ID is 0
FP[1] enabled: Rev 1 Model 16
SMP: Total 2 of 2 processors activated (2195.46 BogoMIPS noticed).
Waiting on wait_init_idle (map = 0x0)
All processors have done init_idle
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Performance monitoring counters enabled for Crescendo 550
Starting kswapd
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Redundant entry in serial pci_table.  Please send the output of
lspci -vv, this message (103c,1048,103c,1049)
and the manufacturer and name of serial board or modem board
to serial-pci-info@lists.sourceforge.net.
ttyS00 at port 0x0040 (irq = 132) is a 16550A
Redundant entry in serial pci_table.  Please send the output of
lspci -vv, this message (103c,1048,103c,104a)
and the manufacturer and name of serial board or modem board
to serial-pci-info@lists.sourceforge.net.
ttyS01 at port 0x0500 (irq = 133) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre8 (Oct 11, 2001)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
eth0: Digital DS21143 Tulip rev 65 at 0x80, 00:30:6E:0C:8A:8F, IRQ 128.
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 2, function 0
sym53c8xx32 BIT PCI BUS DMA ADDRESSING NOT SUPPORTED
sym53c8xx: at PCI bus 0, device 2, function 1
sym53c8xx32 BIT PCI BUS DMA ADDRESSING NOT SUPPORTED
sym53c8xx: at PCI bus 0, device 1, function 0
sym53c8xx: setting PCI_COMMAND_INVALIDATE (fix-up)
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 1, function 1
sym53c8xx: setting PCI_COMMAND_INVALIDATE (fix-up)
sym53c8xx: 53c896 detected 
sym53c896-0: rev 0x7 on pci bus 0 device 1 function 0 irq 129
sym53c896-0: ID 7, Fast-40, Parity Checking
sym53c896-0: handling phase mismatch from SCRIPTS.
sym53c896-1: rev 0x7 on pci bus 0 device 1 function 1 irq 130
sym53c896-1: ID 7, Fast-40, Parity Checking
sym53c896-1: handling phase mismatch from SCRIPTS.
scsi0 : sym53c8xx-1.7.3c-20010512
scsi1 : sym53c8xx-1.7.3c-20010512
  Vendor: SEAGATE   Model: ST39204LC         Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 03
Attached scsi disk sda at scsi1, channel 0, id 15, lun 0
sym53c896-1-<15,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 31)
SCSI device sda: 17783112 512-byte hdwr sectors (9105 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 48Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Adding Swap: 132072k swap-space (priority -1)
eth0: Setting half-duplex based on MII#1 link partner capability of 0021.

--------------F0E628938ADB2B3342B55372--




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Subject: Re: [parisc-linux] 64bit kernels boot on C200 (finally) :)
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[ Snip ]
> i'm surprised the network works given the number of warnings when compiling
> lasi_82596.c with a 64-bit compiler.

it does ... that was over a nfs root.  I plan on taking a look at the compiler
warnings here shortly.  But I have not tested out how much works on the C200+
with a 64-bit kernel ... I have no idea if scsi works, etc.  I will play with
it more and see what is br0k3n.... I was just happy to see the login prompt.

> btw, does a 64-bit kernel with the 32-bit wrapper options enabled boot
> on a PAT PDC box like A500?

I'm not sure if I understand the question, so let me try to restate the
question I think you are asking.

If you compile in 32-bit wrapper support into a 64-bit kernel ... can
the same kernel be used on a PAT PDC box like the A500? 

  No.  When I first started down the 32-bit wrapper support, I was going
  to make the wrappers smart and use the 32-bit wrappers when needed.  I
  was talked out of the idea, because on all the boxes that need the
  32-bit wrappers do not support > 4G ram, thus there is no advantage
  (yes Grant, I know ... some application do benefit from 64-bit kernels)
  for running a 64-bit kernel on them.  The PDC wrappers are designed to
  be used for developement/testing purposes for people with these systems.
  (By Making the wrappers a compile time option, it saves an additional
   level of indirection for every pdc call).


That help?  If not, I'll try again.

- Ryan



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Ryan Bradetich wrote:
> demo@vega:~$ uname -a
> Linux vega 2.4.14-pa1 #2 Thu Nov 15 12:08:07 MST 2001 parisc64 unknown

Ryan! Congrats! That's so cool!

grant

ps. ryan has been working on this for nearly a year..quite a milestone!



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Thomas Marteau wrote:
> 	A short mail to tell you that I succeed to boot my A500-5X with
> 2.4.14-pa3 as you will see below!

Excellent! (lots of good news tonight for a change :^)

> 	Then, I try with the SMP support. But a function is not implemented for
> parisc. cpu_online_map is in init/main.c and coming from the recent
> merge, afaik.

I've fixed that issue in my local tree but haven't had a chance to test it.
(had to fix sba HPMC issue first)

> I commented it. It was compilable. So I give it a shot: 

hehe...ok. I'll test out my fix and commit tonight if it works fine.

thanks!
grant



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Subject: Re: [parisc-linux] Linux/PA-RISC speed (was Re: C240 Graphics, 64bit kernel and more)
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On Thu, Nov 15, 2001 at 02:08:46PM +0000, Markus Grabert wrote:
> Jurriaan Kalkman wrote:
> 
>> I can only say that compiling a kernel on my C200 takes about 2 times
>> as long as on my alpha (21164, 500 Mhz, 2 Mb cache). I feel it should
>> be faster.
> 
> That's odd.
> A 21164/500MHz (not 21164A or 21164PC) is slower according to
> Spec_INT95, Spec_FP95 and the Spec_base(INT|FP)95 variants.

Well, it actually is a 21164A I guess:

cpu model		: EV56
cpu variation		: 7
cpu revision		: 0
system type		: Miata
cycle frequency [Hz]	: 499784372 est.
timer frequency [Hz]	: 1024.00
page size [bytes]	: 8192
phys. address bits	: 40
max. addr. space #	: 127
BogoMIPS		: 988.76
kernel unaligned acc	: 1 (pc=fffffffc0040f064,va=fffffc8900008027)
user unaligned acc	: 0 (pc=0,va=0)
platform string		: Digital Personal WorkStation 500au
cpus detected		: 1

> 
> Indeed the benchmarks say that the Alpha is about 50% slower for FP stuff
> 
> and just a little bit slower for INT stuff (compared to a C240 HP/UX).
> 
> Moreover, according to SPEC:
> If you compare it to a Intel CPU, the PA8200/236Mhz seem to be as fast as
> a Pentium II 400-450 for integer operations and as fast as a
> Pentium III 750-800 for floating point operations.
> 
> Well, lies, bigger lies/statistics and benchmarks.
> Don't trust them.
> Nevertheless a factor of 2 shouldn't occur. It's a too big number.
> Is it just for compiling the kernel or for every application ?
> 
I'm most interested in the speed of compiling, since that what I do most :-)
Having just downloaded the angband-2.9.4-alpha.tar.gz file, I ran this
test in a fresh angband-2.9.4-alpha directory:

#!/bin/sh
# prep the cache
find . -type f -exec cat {} > /dev/null ';'
./configure > /dev/null
time sh -c "make > /dev/null"
make distclean > /dev/null

Both tests were run on systems with 512 Mb memory, the C200+ has a
Quantum UW-SCSI harddisk, the Alpha an IBM UW-SCSI harddisk, but Bonnie
shows them to be almost the same speed. I especially compiled and installed
gcc-3.0.2 20010924 on the Alpha to get as close as possible in compiler
versions, but the Alpha got even faster...

Alpha (gcc-2.95.4)        : real 5m45 user 5m13 system  9s
Alpha (gcc-3.0.2 20010924): real 4m36 user 4m12 system 10s
C200+ (gcc-3.0.2 20010922): real 8m23 user 7m48 system 33s
dual P3/700 (gcc-2.95.4)  : real 1m20 user 1m17 system  3s

and I'd like to note that I was reading mail, news and ssh'ing to the
C200+ from the alpha at the same time, the C200+ wasn't doing anything
else. Angband-2.9.4 is a set of c-sources of some 175000 lines.

The results are shocking; the C200+ is twice as slow, and uses 3 times as
much system time. The angband-2.9.4-alpha sources live at
ftp://clockwork.dementia.org/angband/Source/angband-2.9.4-alpha.tar.gz
if anyone feels like repeating this experiment.

Good luck,
Jurriaan
-- 
I expect Woman will be the last thing civilized by Man.
        George Meredith
GNU/Linux 2.4.15-pre4 on Debian/Alpha 64-bits 988 bogomips load:1.05 1.01 0.77



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Jurriaan on Alpha wrote:
> The results are shocking; the C200+ is twice as slow, and uses 3 times as
> much system time.

I'm not surprised by the result.
1) We've done nearly zero tuning kernel.  Alpha port is much more mature.
2) gcc is poorly tuned for hppa as well.
   ie compare perf of gcc vs acc on HPUX. Up to 2x difference in some cases.
3) gcc is int intensive. Ie clock speed matters more and the alpha
   has 2.5x advantage here.

grant



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Xref: news.gmane.org gmane.linux.ports.parisc:13078

Hi all,
Could someone point me to any discussion about adding
page/offset to struct scatterlist?

To me, it looks like a half-assed step to support DMA to HIGHMEM
on 32-bit arches.  TBH, I'd like to see page/offset replace
address in the pci_map* interfaces and struct scatterlist.
But then replace it across the board so the DMA mapping code
doesn't have to decide which field to use (KISS). This really
belongs in 2.5 kernel.

parisc has just merged up to 2.4.14 and picked up the following
macros from arch/sparc:
/* No highmem on parisc, plus we have an IOMMU, so mapping pages is easy. */
#define pci_map_page(dev, page, off, size, dir) \
        pci_map_single(dev, (page_address(page) + (off)), size, dir) 
#define pci_unmap_page(dev,addr,sz,dir) pci_unmap_single(dev,addr,sz,dir)

afaict, parisc doesn't need page/offset in struct scatterlist.
As an interim solution, I've appended a patch that I'm hoping
is acceptable (or at least a starting point).
Thoughts?

thanks,
grant

ps. I'm trying to be constructive - it's a bit difficult after
  putting up with davem ranting about how the DMA mapping interface
  in 2.4 was frozen.

Index: drivers/scsi/scsi_merge.c
===================================================================
RCS file: /var/cvs/linux/drivers/scsi/scsi_merge.c,v
retrieving revision 1.10
diff -u -p -r1.10 scsi_merge.c
--- drivers/scsi/scsi_merge.c	2001/11/09 23:36:24	1.10
+++ drivers/scsi/scsi_merge.c	2001/11/16 07:26:36
@@ -943,7 +943,9 @@ __inline static int __init_io(Scsi_Cmnd 
 		}
 		count++;
 		sgpnt[count - 1].address = bh->b_data;
+#ifdef CONFIG_HIGHMEM
 		sgpnt[count - 1].page = NULL;
+#endif
 		sgpnt[count - 1].length += bh->b_size;
 		if (!dma_host) {
 			SCpnt->request_bufflen += bh->b_size;
Index: drivers/scsi/sg.c
===================================================================
RCS file: /var/cvs/linux/drivers/scsi/sg.c,v
retrieving revision 1.12
diff -u -p -r1.12 sg.c
--- drivers/scsi/sg.c	2001/11/09 23:36:24	1.12
+++ drivers/scsi/sg.c	2001/11/16 07:26:37
@@ -1544,7 +1544,9 @@ static int sg_build_dir(Sg_request * srp
 	num = (rem_sz > (PAGE_SIZE - offset)) ? (PAGE_SIZE - offset) :
 						rem_sz;
 	sclp->address = page_address(kp->maplist[k]) + offset;
+#ifdef CONFIG_HIGHMEM
 	sclp->page = NULL;
+#endif
 	sclp->length = num;
 	mem_src_arr[k] = SG_USER_MEM;
 	rem_sz -= num;
@@ -1631,7 +1633,9 @@ static int sg_build_indi(Sg_scatter_hold
                     break;
             }
             sclp->address = p;
+#ifdef CONFIG_HIGHMEM
 	    sclp->page = NULL;
+#endif
             sclp->length = ret_sz;
 	    mem_src_arr[k] = mem_src;
 
@@ -1789,7 +1793,9 @@ static void sg_remove_scat(Sg_scatter_ho
                        k, sclp->address, sclp->length, mem_src));
             sg_free(sclp->address, sclp->length, mem_src);
             sclp->address = NULL;
+#ifdef CONFIG_HIGHMEM
 	    sclp->page = NULL;
+#endif
             sclp->length = 0;
         }
 	sg_free(schp->buffer, schp->sglist_len, schp->buffer_mem_src);
Index: drivers/scsi/st.c
===================================================================
RCS file: /var/cvs/linux/drivers/scsi/st.c,v
retrieving revision 1.10
diff -u -p -r1.10 st.c
--- drivers/scsi/st.c	2001/11/09 23:36:24	1.10
+++ drivers/scsi/st.c	2001/11/16 07:26:39
@@ -3233,7 +3233,9 @@ static ST_buffer *
 				break;
 			}
 		}
+#ifdef CONFIG_HIGHMEM
 		tb->sg[0].page = NULL;
+#endif
 		if (tb->sg[segs].address == NULL) {
 			kfree(tb);
 			tb = NULL;
@@ -3265,7 +3267,9 @@ static ST_buffer *
 					tb = NULL;
 					break;
 				}
+#ifdef CONFIG_HIGHMEM
 				tb->sg[segs].page = NULL;
+#endif
 				tb->sg[segs].length = b_size;
 				got += b_size;
 				segs++;
@@ -3339,7 +3343,9 @@ static int enlarge_buffer(ST_buffer * ST
 			normalize_buffer(STbuffer);
 			return FALSE;
 		}
+#ifdef CONFIG_HIGHMEM
 		STbuffer->sg[segs].page = NULL;
+#endif
 		STbuffer->sg[segs].length = b_size;
 		STbuffer->sg_segs += 1;
 		got += b_size;



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On Fri, Nov 16 2001, Grant Grundler wrote:
> Hi all,
> Could someone point me to any discussion about adding
> page/offset to struct scatterlist?

See lkml a couple months back, 32-bit dma etc discussion.
> 
> To me, it looks like a half-assed step to support DMA to HIGHMEM
> on 32-bit arches.  TBH, I'd like to see page/offset replace
> address in the pci_map* interfaces and struct scatterlist.
> But then replace it across the board so the DMA mapping code
> doesn't have to decide which field to use (KISS). This really
> belongs in 2.5 kernel.

It's not half-assed, it's needed. I would imagine that pci_map_single
etc stays though, although pci_map_page or pci_map_sg is the preferred
approach.

Regarding the patch -- please add a helper function to set the sg list
instead of introducing CONFIG_HIGHMEM all over the place. I'm assuming
you are missing the piece which leaves out page/offset for non-highmem,
if not you are really pedantic about saving a few cycles :-)

-- 
Jens Axboe




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Subject: Re: [parisc-linux] Linux/PA-RISC speed (was Re: C240 Graphics, 64bit kernel and more)
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> Alpha (gcc-2.95.4)        : real 5m45 user 5m13 system  9s
> Alpha (gcc-3.0.2 20010924): real 4m36 user 4m12 system 10s
> C200+ (gcc-3.0.2 20010922): real 8m23 user 7m48 system 33s
> dual P3/700 (gcc-2.95.4)  : real 1m20 user 1m17 system  3s

Be cautious. Unless you built cross compilers and each is building for
the same target you are doing different amounts of work for each target
CPU

Looking at the high system time I guess there is work to do on the hppa,
but it doesn't suprise me. It takes a lot of time to tune a port after it
actually works reliably



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Subject: Betr.: Re: [parisc-linux] Linux/PA-RISC speed (was Re: C240
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>> Alpha (gcc-2.95.4)        : real 5m45 user 5m13 system  9s
>> Alpha (gcc-3.0.2 20010924): real 4m36 user 4m12 system 10s
>> C200+ (gcc-3.0.2 20010922): real 8m23 user 7m48 system 33s
>> dual P3/700 (gcc-2.95.4)  : real 1m20 user 1m17 system  3s
>
>Be cautious. Unless you built cross compilers and each is building for
>the same target you are doing different amounts of work for each target
>CPU

In what way? It's not like the ./configure script will produce very =
different
results on alpha vs parisc, it doesn't even check for 64 bits/32 bits
differences. All this just demonstrated my gut feeling that compiling (
the kernel, for example) feels slower on parisc than it should be.

>
>Looking at the high system time I guess there is work to do on the hppa,
>but it doesn't suprise me. It takes a lot of time to tune a port after it
>actually works reliably
>
It's exciting to be involved in - I  fully agree.

Good luck,
Jurriaan




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Subject: Re: Betr.: Re: [parisc-linux] Linux/PA-RISC speed (was Re: C240
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> In what way? It's not like the ./configure script will produce very =
> different
> results on alpha vs parisc, it doesn't even check for 64 bits/32 bits
> differences. All this just demonstrated my gut feeling that compiling (
> the kernel, for example) feels slower on parisc than it should be.

The amount of work to build a kernel for a given platofrm depends a lot on
the CPU, the number of instructions and the number of combinations of
optimisations



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Hello!!

I just got a cdrom to my HpPa 712/60  =).
For the moment it runs HP/UX (did'nt get linux to boot over network, dont
know what I did wrong, probably something on my boot-server.
WellWell...

I wonder: Is there any url for some install-cd's to download and burn for
Pa-risc-Linux for HpPa712/60?

Dont know if it will work ether, becouse my (burned) Hp/UX 10.20-cd will
not boot... I hope it is wrong on that CD and not something with the
cdromdrive.

(Please reply to my email: xfs@linux.se becouse I'm not on this list)

Mvh Johan Andersson
    <xfs@linux.se>




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From: "kenneth westelinck" <kennywest1@hotmail.com>
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Subject: Re: [parisc-linux] CD to download?
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http://www.parisc-linux.org/release-0.9/index.html
----- Original Message ----- 
From: <xfs@linux.se>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Friday, November 16, 2001 1:28 PM
Subject: [parisc-linux] CD to download?


> Hello!!
> 
> I just got a cdrom to my HpPa 712/60  =).
> For the moment it runs HP/UX (did'nt get linux to boot over network, dont
> know what I did wrong, probably something on my boot-server.
> WellWell...
> 
> I wonder: Is there any url for some install-cd's to download and burn for
> Pa-risc-Linux for HpPa712/60?
> 
> Dont know if it will work ether, becouse my (burned) Hp/UX 10.20-cd will
> not boot... I hope it is wrong on that CD and not something with the
> cdromdrive.
> 
> (Please reply to my email: xfs@linux.se becouse I'm not on this list)
> 
> Mvh Johan Andersson
>     <xfs@linux.se>
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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From: "David S. Miller" <davem@redhat.com>
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Subject: [parisc-linux] Re: parisc scatterlist doesn't want page/offset
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No, you must have page+offset because in the future the
"address" field of scatterlist is going to disappear
and _ONLY_ page+offset will be used.

Do not hack around it, just fix your scatterlist definition instead.
I'm trying to push a Documentation/DMA-mapping.txt update to Linus
which talks about this explicitly and requires your port to have those
fields. 



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Re: parisc scatterlist doesn't want page/offset
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On Fri, Nov 16, 2001 at 06:52:43AM -0800, David S. Miller wrote:
> 
> No, you must have page+offset because in the future the
> "address" field of scatterlist is going to disappear
> and _ONLY_ page+offset will be used.

but _WHY_ in 2.4?  this is ridiculous for something which is alleged to
be a stable kernel.

-- 
Revolutions do not require corporate support.



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   From: Matthew Wilcox <willy@debian.org>
   Date: Fri, 16 Nov 2001 15:04:54 +0000

   On Fri, Nov 16, 2001 at 06:52:43AM -0800, David S. Miller wrote:
   > 
   > No, you must have page+offset because in the future the
   > "address" field of scatterlist is going to disappear
   > and _ONLY_ page+offset will be used.
   
   but _WHY_ in 2.4?  this is ridiculous for something which is alleged to
   be a stable kernel.
   
You have to add two members to a silly structure which nobody
uses right now, that is so horrible.  What affect on stability
does that change have?

This makes merging of Jen's Axboe's block highmem code back into
2.4.x painless.  That is why.

Franks a lot,
David S. Miller
davem@redhat.com



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On Fri, Nov 16, 2001 at 07:17:51AM -0800, David S. Miller wrote:
>    From: Matthew Wilcox <willy@debian.org>
>    Date: Fri, 16 Nov 2001 15:04:54 +0000
> 
>    On Fri, Nov 16, 2001 at 06:52:43AM -0800, David S. Miller wrote:
>    > 
>    > No, you must have page+offset because in the future the
>    > "address" field of scatterlist is going to disappear
>    > and _ONLY_ page+offset will be used.
>    
>    but _WHY_ in 2.4?  this is ridiculous for something which is alleged to
>    be a stable kernel.
>    
> You have to add two members to a silly structure which nobody
> uses right now, that is so horrible.  What affect on stability
> does that change have?
> 
> This makes merging of Jen's Axboe's block highmem code back into
> 2.4.x painless.  That is why.

so when jens' code is merged back into 2.4 we won't have to make any
changes to the arch dependent code?

-- 
Revolutions do not require corporate support.



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   From: Matthew Wilcox <willy@debian.org>
   Date: Fri, 16 Nov 2001 15:26:01 +0000
   
   so when jens' code is merged back into 2.4 we won't have to make any
   changes to the arch dependent code?
   
Part of the criteria to whether we merge back Jens' code is
if the ports, given reasonable notice (ie. take this as your notice)
have added in the support for page+offset pairs to their pci_map_sg
code.

I suggest you do this now, it is totally painless.  I would almost
classify it as a mindless edit.

Franks a lot,
David S. Miller
davem@redhat.com



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My compliments on the current ISOs.  I got bit when upgrading
my very crusty system, and decided to reinstall (no important data).
I have no CD but managed to use the network ISO image to do
a bootp/NFS install and it was even more painless than i386 is
these days.  Congrats.

P.S. Only one snag -- when using a HIL keyboard, skip the initial
keyboard setup or you end up with no curcor keys.

--
Brian S. Julin




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From: Michael Wood <mwood@its.uct.ac.za>
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Subject: Re: [parisc-linux] 64bit kernels boot on C200 (finally) :)
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On Thu, Nov 15, 2001 at 08:01:02PM +0000, Matthew Wilcox wrote:
> On Thu, Nov 15, 2001 at 12:32:03PM -0700, Ryan Bradetich wrote:
> > It is not perfect yet, still have a couple of bugs to work
> > out and fix:
> > 	1. sys32_ioctl: Unknown cmd fd(3) cmd(00004b50) arg(faf00788)
> > 	2. the ncr720 driver seemed to hang when I had a disk
> > 	   attached behind the bluefish card.
> > 
> > but here it is:
> > 
> > demo@vega:~$ uname -a
> > Linux vega 2.4.14-pa1 #2 Thu Nov 15 12:08:07 MST 2001 parisc64 unknown
> 
> i'm surprised the network works given the number of warnings
> when compiling lasi_82596.c with a 64-bit compiler.

The last time I tried a 64 bit kernel with lasi_82596.c (a few
weeks ago), the network card would not work.  When the driver
loaded it complained that sizeof(somestruct) was 64.  I had a
look at the code and saw that it was expecting it to be 32.

I've been using 32 bit kernels since then.  I don't think
lasi_82596.c has changed significantly since I last tried it in
a 64 bit kernel.

This was on a D270.

-- 
Michael Wood <mwood@its.uct.ac.za>



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On Fri, Nov 16, 2001 at 07:33:28AM -0800, David S. Miller wrote:
>    From: Matthew Wilcox <willy@debian.org>
>    Date: Fri, 16 Nov 2001 15:26:01 +0000
>    
>    so when jens' code is merged back into 2.4 we won't have to make any
>    changes to the arch dependent code?
>    
> Part of the criteria to whether we merge back Jens' code is
> if the ports, given reasonable notice (ie. take this as your notice)
> have added in the support for page+offset pairs to their pci_map_sg
> code.
> 
> I suggest you do this now, it is totally painless.  I would almost
> classify it as a mindless edit.

grant suggested adding support for it had performance implications,
so he wasn't willing to let me make that edit.  i'm not sure i entirely
understand the new scheme either.  the danger of updating code without
updating its supporting documentation.

-- 
Revolutions do not require corporate support.



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   From: Matthew Wilcox <willy@debian.org>
   Date: Fri, 16 Nov 2001 15:43:50 +0000
   
   grant suggested adding support for it had performance implications,
   so he wasn't willing to let me make that edit.  i'm not sure i entirely
   understand the new scheme either.  the danger of updating code without
   updating its supporting documentation.

If "address" is NULL, use page+offset.  It's pretty simple.



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"David S. Miller" wrote:
> Part of the criteria to whether we merge back Jens' code is
> if the ports, given reasonable notice (ie. take this as your notice)
> have added in the support for page+offset pairs to their pci_map_sg
> code.

That is what willy was talking about.
You asking folks to muck with what's supposed to be working code.

> I suggest you do this now, it is totally painless.  I would almost
> classify it as a mindless edit.

Adding two members to a struct is not the problem.
The problem is revisiting every usage of ->address in the DMA code
and telling driver writers they should be using page+offset.

grant



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Subject: [parisc-linux] __alloc_pages errors
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For some time now various people have seen these errors in their kernel
logs:

__alloc_pages: 1-order allocation failed.                                       

(sometimes higher order)

Does anyone have any ideas what causes this? They usually seem to be 
harmless, though occasionally they coincide with random segfaults.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Matthew Wilcox wrote:
> grant suggested adding support for it had performance implications,

Jens is right to some degree - I'm counting cycles in that code
path since every driver depends on it for every IO request.
Until page/offset completely replaces address, I see a net increase
in cycles for parisc (probably most archs) with only a tangible benefit
for i386. Seems like the burden should be on the i386 folks to not
impact other arches.

My main gripe is adding this to 2.4 seems like the wrong time/place.
I'm happy to revisit this in 2.5.

grant

ps. I still have to go hunt down the discussion jens was referring to.
  Maybe if I understood the direction better, I'd be more receptive.



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xfs@linux.se wrote:

> Hello!!
> 
> I just got a cdrom to my HpPa 712/60  =).
> For the moment it runs HP/UX (did'nt get linux to boot over network, dont
> know what I did wrong, probably something on my boot-server.
> WellWell...
> 
> I wonder: Is there any url for some install-cd's to download and burn for
> Pa-risc-Linux for HpPa712/60?
> 
> Dont know if it will work ether, becouse my (burned) Hp/UX 10.20-cd will
> not boot... I hope it is wrong on that CD and not something with the
> cdromdrive.
> 

You can download the latest 0.9.2 iso either from the PA-RISC Linux 
Official Website (http://www.parisc-linux.org/release-0.9/index.html) or 
from the ESIEE Team website (http://mkhppa1.esiee.fr/download.html). The 
second url is preferred, it will give us better site stats :)

Clement
PA/Linux ESIEE Team




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   From: Grant Grundler <grundler@puffin.external.hp.com>
   Date: Fri, 16 Nov 2001 09:32:52 -0700

   > I suggest you do this now, it is totally painless.  I would almost
   > classify it as a mindless edit.
   
   Adding two members to a struct is not the problem.
   The problem is revisiting every usage of ->address in the DMA code
   and telling driver writers they should be using page+offset.
   
Note the "should", nobody forces them to use page+offset in
a driver and 2.4.x will NEVER require it.  They just won't
be able to DMA highmem pages, that's all.

The DMA code is so simple to fix ("mindless edit" is still how I
classify it) and you have _THREE_ (count them, 3) platform IOMMU code
patch examples to work with (alpha, sparc64, ia64).

Franks a lot,
David S. Miller
davem@redhat.com



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"David S. Miller" wrote:
> Note the "should", nobody forces them to use page+offset in
> a driver and 2.4.x will NEVER require it.  They just won't
> be able to DMA highmem pages, that's all.

ok.  That's what I wanted to hear.

thanks,
grant



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> Until page/offset completely replaces address, I see a net increase
> in cycles for parisc (probably most archs) with only a tangible benefit
> for i386. Seems like the burden should be on the i386 folks to not
> impact other arches.
> My main gripe is adding this to 2.4 seems like the wrong time/place.
> I'm happy to revisit this in 2.5.

Its a bad impact on x86 so unfortunately it does need doing and I agree with
Dave - DaveM rarely implements something that is x86 beneficial but harms 
his beloved sparc64 without good reason.

Alan



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> The last time I tried a 64 bit kernel with lasi_82596.c (a few
> weeks ago), the network card would not work.  When the driver
> loaded it complained that sizeof(somestruct) was 64.  I had a
> look at the code and saw that it was expecting it to be 32.

yeah, I was confused.  C200 has tulip, K460 has lasi_82596.  Talking
with Richard Hirst, it sounds like making this driver 64-bit clean
would be non-trivial ... so this will probably be one of my pet
project that takes a year to get finished :)

> I've been using 32 bit kernels since then.  I don't think
> lasi_82596.c has changed significantly since I last tried it in
> a 64 bit kernel.
> 
> This was on a D270.

Cool, if your D270 also uses it, maybe you will get it ported
before I do :)

- Ryan



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Hello,

On Fri, 09 Nov 2001, Randolph Chung wrote:

> In reference to a message from Albert Strasheim, dated Nov 09:

<snipple>

> i have a patch in my tree that adds back some of these things that are
> in other archs but not in parisc. will clean it up and post RSN.

Any update on this? I'm not particularly anxious, but I'd like to have
my 720 be useful for something. :-) Or is the recent 2.4.14 merge going
to delay this fix?

Regards,

Albert



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Hello,

An interesting update...

Playing MPEG stream from Limp_Bizkit-My_Way.mp3 ...
MPEG 1.0 layer III, 160 kbit/s, 44100 Hz joint-stereo

on my 720/50 streams smooth over 10Mbps LAN to esd running on my i386
box. Sweetness. :-) The 720 isn't up to much else though. 50 MHz of RISC
power. Muhehehe.

Regards,

Albert


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From: Sonny Cook <sonny@aspersion.org>
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Subject: [parisc-linux] pam/ssh seems to be whacked
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Hi,
When attempting to install gkrellm on my b132l, apt-get upgraded a number
of other packaged including (the suspect) libc6-2.2.4-6.  Now when I
attempt to ssh into the box, I get the following error in my logs:

Nov 13 00:20:52 angstrom sshd[14365]: PAM pam_set_item: NULL pam handle
passed
Nov 13 00:20:52 angstrom sshd[14365]: Failed rsa for illegal user sonny
from 192.168.1.128 port 34113
Nov 13 00:21:07 angstrom sshd[14365]: PAM pam_set_item: NULL pam handle
passed
Nov 13 00:21:07 angstrom sshd[14365]: Failed password for illegal user
sonny from 192.168.1.128 port 34113

I upgraded to the latest version of libpam0g, libpam-runtime, and
libpam-modules, to no avail.  Needless to say, I cannot log in.

I suspect that the libc6 upgrage goofed me up somehow.  Does anybody have
an idea, or place to start debugging?

Thanks
Sonny




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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] pam/ssh seems to be whacked
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> I upgraded to the latest version of libpam0g, libpam-runtime, and
> libpam-modules, to no avail.  Needless to say, I cannot log in.
> 
> I suspect that the libc6 upgrage goofed me up somehow.  Does anybody have
> an idea, or place to start debugging?

correct. the way to fix this is to run, as root:

/etc/init.d/ssh restart

randolph
-- 
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 ( >__< )
 ^^ ~~ ^^



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Subject: Re: [parisc-linux] smbfs doesn't build
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> > i have a patch in my tree that adds back some of these things that are
> > in other archs but not in parisc. will clean it up and post RSN.
> 
> Any update on this? I'm not particularly anxious, but I'd like to have
> my 720 be useful for something. :-) Or is the recent 2.4.14 merge going
> to delay this fix?

checked in now for include/asm-parisc/posix_types.h

i have some other ones that i'd like to look at a bit more before
checking them in.

randolph
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 ( >__< )
 ^^ ~~ ^^



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From: Sonny Cook <sonny@aspersion.org>
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Subject: Re: [parisc-linux] pam/ssh seems to be whacked
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Wow, thanks.  That did the trick.
Sonny

On Fri, 16 Nov 2001, Randolph Chung wrote:

> > I upgraded to the latest version of libpam0g, libpam-runtime, and
> > libpam-modules, to no avail.  Needless to say, I cannot log in.
> >
> > I suspect that the libc6 upgrage goofed me up somehow.  Does anybody have
> > an idea, or place to start debugging?
>
> correct. the way to fix this is to run, as root:
>
> /etc/init.d/ssh restart
>
> randolph
>




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Subject: [parisc-linux] more on pci mmio swapping
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Xref: news.gmane.org gmane.linux.ports.parisc:13108

The story so far...

1. pci is mostly little-endian
2. most of the other linux big-endian architectures define the 16-bit/32-bit 
read/write operations to do cpu_to_le byte swapping
3. parisc (and s390) do not currently do this

I've looked at the part in the Dino ERS again that willy pointed out. As
far as I can tell it's not talking about byte swapping but more about
address invariance. In fact the ERS specifically says that if the host
is running in BE mode, the driver is responsible for byte swapping.

I've looked at a sample of pci drivers that we are using for parisc
right now. In the case of the sym53c8xx driver, there is hppa specific
code to do cpu_to_le translation before doing writes.

So, given these things, I'm inclined to say that our current
implementation is not correct. Grant concurs, though it'd be great to
have folks like Alan (Cox) confirm this :)

The attached patch is my proposed changes. I've tested it on a c3000
with tulip/sym53c8xx and it works. I've done some digging into other
common drivers to see if anything else will break. So far I haven't come
up with anything, but Grant thinks acenic may break....

with this patch, the usb controller on suckyio is being detected
correctly (at least more correctly than before), though it's still 
not quite working yet.

comments on this are most welcome. I hope to check this in some time
next week.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^


Index: arch/parisc/lib/io.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/lib/io.c,v
retrieving revision 1.6
diff -u -r1.6 io.c
--- arch/parisc/lib/io.c	2001/11/07 23:51:31	1.6
+++ arch/parisc/lib/io.c	2001/11/15 08:00:31
@@ -24,7 +24,7 @@
 		count--;
 	}
 	while (count > 3) {
-		writel(*(u32 *)src, dest);
+		__raw_writel(*(u32 *)src, dest);
 		(unsigned long) src += 4;
 		dest += 4;
 		count -= 4;
@@ -68,14 +68,14 @@
 	}
 
 	if (src & 2) {
-		*(u16 *)dest = readw(src);
+		*(u16 *)dest = __raw_readw(src);
 		((u16 *)src)++;
 		((u16 *)dest)++;
 		count-=2;
 	}
 
 	while (count > 3) {
-		*(u32 *)dest = readl(src);
+		*(u32 *)dest = __raw_readl(src);
 		dest += 4;
 		src += 4;
 		count -= 4;
@@ -83,7 +83,7 @@
 
  shortcopy:
 	while (count > 1) {
-		*(u16 *)dest = readw(src);
+		*(u16 *)dest = __raw_readw(src);
 		((u16 *)src)++;
 		((u16 *)dest)++;
 		count-=2;
@@ -109,7 +109,7 @@
 		count--;
 	}
 	while (count > 3) {
-		writel(fill32, dest);
+		__raw_writel(fill32, dest);
 		dest += 4;
 		count -= 4;
 	}
Index: drivers/scsi/sym53c8xx_defs.h
===================================================================
RCS file: /var/cvs/linux/drivers/scsi/sym53c8xx_defs.h,v
retrieving revision 1.11
diff -u -r1.11 sym53c8xx_defs.h
--- drivers/scsi/sym53c8xx_defs.h	2001/08/01 15:26:34	1.11
+++ drivers/scsi/sym53c8xx_defs.h	2001/11/15 08:00:35
@@ -406,11 +406,11 @@
 #define	readb_raw	readb
 #define	writeb_raw	writeb
 
-#if defined(__hppa__) && !defined(SCSI_NCR_BIG_ENDIAN)
-#define	readw_l2b(a)	le16_to_cpu(readw(a))
-#define	readl_l2b(a)	le32_to_cpu(readl(a))
-#define	writew_b2l(v,a)	writew(cpu_to_le16(v),a)
-#define	writel_b2l(v,a)	writel(cpu_to_le32(v),a)
+#if defined(SCSI_NCR_BIG_ENDIAN)
+#define	readw_l2b	__raw_readw
+#define	readl_l2b	__raw_readl
+#define	writew_b2l	__raw_writew
+#define	writel_b2l	__raw_writel
 #else	/* Other bid-endian */
 #define	readw_l2b	readw
 #define	readl_l2b	readl
Index: include/asm-parisc/io.h
===================================================================
RCS file: /var/cvs/linux/include/asm-parisc/io.h,v
retrieving revision 1.25
diff -u -r1.25 io.h
--- include/asm-parisc/io.h	2001/11/03 23:06:00	1.25
+++ include/asm-parisc/io.h	2001/11/15 08:00:36
@@ -147,11 +147,11 @@
 #define writel(b,addr) (*(volatile unsigned int *) (addr) = (b))
 #else /* !USE_HPPA_IOREMAP */
 #define readb(addr) __raw_readb((unsigned long)addr)
-#define readw(addr) __raw_readw((unsigned long)addr)
-#define readl(addr) __raw_readl((unsigned long)addr)
+#define readw(addr) le16_to_cpu(__raw_readw((unsigned long)addr))
+#define readl(addr) le32_to_cpu(__raw_readl((unsigned long)addr))
 #define writeb(b,addr) __raw_writeb(b,(unsigned long)addr)
-#define writew(b,addr) __raw_writew(b,(unsigned long)addr)
-#define writel(b,addr) __raw_writel(b,(unsigned long)addr)
+#define writew(b,addr) __raw_writew(cpu_to_le16(b),(unsigned long)addr)
+#define writel(b,addr) __raw_writel(cpu_to_le32(b),(unsigned long)addr)
 #endif /* !USE_HPPA_IOREMAP */
 
 extern void memcpy_fromio(void *dest, unsigned long src, int count);



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Sonny Cook wrote:
> Hi,
> When attempting to install gkrellm on my b132l, apt-get upgraded a number
> of other packaged including (the suspect) libc6-2.2.4-6.  Now when I
> attempt to ssh into the box, I get the following error in my logs:

hmmm..I didn't get those errors...but after apt-get upgrade I had
to manually "/etc/init.d/ssh restart" in order to login via ssh.

grant



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: [parisc-linux] Memory expansion for E55 - PS/2 SIMMS ?
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Hello HP PARISC specialists !

My E55 server (9000/856) is equipped with 64MB RAM in 2
slots. 4 slots are free (six in sum).

The modules looks like PS/2 SIMMS (72 pin) !

Is it possible to update them with default PC compatible
PS/2 SIMMs ?
With/without parity ?
Are they compatible ?

For using Linux on it (I hope this will be possible one day ....)
I would like to have more than 64MB !!

With friendly regards
	Christoph 


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Subject: Re: [parisc-linux] Re: rsync for CVS repository
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Hi Paul,

One great stuff which makes me prefer rsync versus cvs is that rsync allow me to
define easily RSYNC_PROXY (afaik cvs did not) and in my working environement
(behing a fw configure by neanderthal admin) it is a great help.

But I also understand well your position.

	Joel

Quoting Soete Joel <joel.soete@freebel.net>:

> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-November/014545.html


-------------------------------------------------
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So I finally have a viable system in the form of a 755/125(384mb ram, 
internal FWscsi drive and 2 atm cards).  I can get it to boot under 
the HPUX still installed on the HD, and it seems to work(not root 
pw).  I tried booting it off the internal CD with the 0.92 disc and 
it seemed to freeze at the 'Branching to kernel address .....".
Three questions:
Is this common or an oddity with my system?
It currently only allows a net boot off of the ATM cards, either the 
EISA or the slider.  How can I force it to use the onboard 10 base 
T(AUI) or even 10 Base 2?
The other might be slightly off topic, but is there an easy way to 
reset the root pw on the HPUX install?(I believe I have HPUX install 
media somewhere but I'm probably wrong.)
Aaron
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Aaron Macks(aaronm@cs.brandeis.edu)
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Ok, so the Root pw of HPUX has been fixed, thanks.  I was able to 
unconfigure the ATM card and remove it from the eisa cage, but the 
system still seems not to see the 10baseT AUI adaptor, no lights are 
lit, not even the power one.
As for SCSI, I have HPUX on a FW, but a N for Linux.  Will it be a 
problem to have the FW drive installed, or Linux just ignore it?
Aaron

-- 
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On Sun, Nov 18, 2001 at 02:34:30PM -0500, Aaron Macks wrote:
> As for SCSI, I have HPUX on a FW, but a N for Linux.  Will it be a 
> problem to have the FW drive installed, or Linux just ignore it?

Should be ok, just be very sure that you know which disk is which
before you start partitioning.

Richard




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On Sun, 2001-11-18 15:43:45 +0100, joel.soete@freebel.net <joel.soete@freebel.net>
wrote in message <1006094625.3bf7c921363b6@webmail.tiscalinet.be>:
> Hi Paul,
> 
> One great stuff which makes me prefer rsync versus cvs is that rsync allow me to
> define easily RSYNC_PROXY (afaik cvs did not) and in my working environement
> (behing a fw configure by neanderthal admin) it is a great help.
> 
> But I also understand well your position.

Well, you don't need to advertise or document rsync access. People
interested in using it know how to do it, and they'll simply try
it. Look at oss.sgi.com - you won't really find rsync mentioned
there:-)

MfG, JBG

-- 
Jan-Benedict Glaw   .   jbglaw@lug-owl.de   .   +49-172-7608481
	http://lug-owl.de/~jbglaw/software/snapshot2cvs/



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: [parisc-linux] Re: E55 status
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Hi Thomas !

Here are the current status of the E55:

I have rewritten my whole stuff on the current CVS snapshot from the end
of this week (2.4.14-pa6).

(1) TTY driver for the PDC console, used in polling mode (30ms) as
device
	/dev/ttyB0:
	- only tested via serial line !
	- is configured together with CONFIG_SERIAL_CONSOLE, if ARCH is
		parisc (XXX: TODO a config via menu for PDC CONSOLE DRIVER)
	- a node (/dev/ttyB0 c 30 0) must be created
	- /etc/inittab should have a login on /dev/ttyB0
	- the kernel line parameter `console=ttyB0' must be set

	Driver works for complete Linux stuff, including `login' and editing
	on the `bash'.
	
(2) LED support for the "RUN" and "ATTENTION" LED (cuppled to the
heartbeat of
	700er machines. If the heartbeart is active, E55 shows "RUN", otherwise
	the machine indicates "ATTENTION"). So the status can be influenced
	by the `/proc/pdc/led' entry.
	This LED driver is activated by the model name "9000/856" (E55), so
	for further machines of similar types, the model names have to be
	added.

In general, the CONFIG stuff has to be adapted. On that stuff, my
experience 
is not that what other LINUX hacker's expect ...

Further, is there a developer ChangeLog file to do entries per file ?

So the E55 server can be booted diskless by BOOTP(DHCP)/TFTP and boots
up. Ethernet is full functioning, the console works on port 0 of the
8-port multiplexer. No SCSI controller is deteced, not the parallel
interface,
and the mulitplexer board. For these three componets, drivers are
needed,
and the DOCUMENTATION !!!

I hope, parts of my stuff (or all plus improvments concerning
configuration)
will come into the kernel main stream to have this "start" of E55 server
in the kernel.

I will add my current CVS diffings of my extensions very soon, at the
moment
the CVS server seems to be down ! (Please contact me, if you have
interest !)

With friendly regards
Christoph P.



Thomas Marteau wrote:
> 
> Hi Christoph,
> 
>         I am updating our list of working hardware. Could you tell me if you
> know something about the status of PA/Linux on E55?
> 
> Thanks for your answer, Thomas.
> ESIEE Team

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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On Sun, 2001-11-18 at 12:34, Aaron Macks wrote:
> Ok, so the Root pw of HPUX has been fixed, thanks.  I was able to 
Glad to hear it :)

> unconfigure the ATM card and remove it from the eisa cage, but the 
> system still seems not to see the 10baseT AUI adaptor, no lights are 
> lit, not even the power one.
Hm... that doesn't seem right.  Have you tried a different AUI adapter?
sounds like faulty hardware somewhere :(

> As for SCSI, I have HPUX on a FW, but a N for Linux.  Will it be a 
> problem to have the FW drive installed, or Linux just ignore it?
> Aaron

Linux will just detect the Outfield Card, but non of the scsi drivers/
disks below it will be probed/detected.  Linux will safely ignore it.

- Ryan





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On Sun, 2001-11-18 at 09:11, Aaron Macks wrote:
> So I finally have a viable system in the form of a 755/125(384mb ram, 
> internal FWscsi drive and 2 atm cards).  I can get it to boot under 
> the HPUX still installed on the HD, and it seems to work(not root 
> pw).  I tried booting it off the internal CD with the 0.92 disc and 
> it seemed to freeze at the 'Branching to kernel address .....".

> Three questions:
> Is this common or an oddity with my system?
The 755 (and 735) are only partially supported at this time.  The
fast-wide disks are behind an outfield card which is not supported yet,
so you can not use the FW disks.  It has been a long time since I
installed the 0.9.2 iso, but I have tested tested the rc1 of the
upcoming 0.9.3 iso on the 755 and it installed fine :)

> It currently only allows a net boot off of the ATM cards, either the 
> EISA or the slider.  How can I force it to use the onboard 10 base 
> T(AUI) or even 10 Base 2?

I have not run into this one yet, and I did a network install of the 755
using the built-in 10 base-T. I will see if I can find an additional
EISA network card to add to the machine and see if I can duplicate your
problem.

> The other might be slightly off topic, but is there an easy way to 
> reset the root pw on the HPUX install?(I believe I have HPUX install 
> media somewhere but I'm probably wrong.)

yeah, boot into the hpux isl menu:
	boot pri isl

when in the isl menu
	hpux -is

will put you in single user mode where you can change the root passwd.

- Ryan

> Aaron
> -- 
> _______________________________________________________
> Aaron Macks(aaronm@cs.brandeis.edu)
> My sheep has seven gall bladders, that makes me the King of the Universe!
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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Quoth Grant Grundler:
> Jan-Benedict Glaw wrote:
> > ...which remembers me that I emailed with Grant these days about
> > making the CVS repository available via rsync. He also thought that
> > that would be a nice thing to have... I volunteered to do the setup
> > if time is all off. How about that?
> 
> I've heard nothing back about this.  Sorry - I can't autonomously give
> out logins to the cvs machine or I would have already.
> Do you have a URL for a short how-to?
> I might take a crack at it if no one else with access speaks up.
> 
> grant

I've not responded individually to the comments in the thread following
this post, but I think there's a bit of confusion.

There's not much point in setting rsync access to the CVS repository,
except for mirroring purposes.  (And even then, you probably would only
want it to be rsync in one direction; maintaining two or more live CVS
repositories and attempting to keep them synchronised with rsync would
be an exercise in hard work.)

What is useful though, and what is being done by several projects, is to
maintain one or more checked-out trees from their CVS repository and
have these trees available by anonymous rsync.  Most popular CVS
projects don't branch, and so this is very easy: a regular cron job
keeps a CVS HEAD checkout fresh, and the tree is served by rsync or some
other server of choice (ftp/http).

The usefulness of this - as it is not replacing cvs in any way - is that
a user may easily bring their tree in sync with HEAD (or whichever
branch is being tracked) and then still be able to perform the usual cvs
operations on it (eg diff, log etc).

I know that I would make use of an anonymous rsync service if it were
available.  I do agree with the point made by some others though, that
if advertised there are likely to be people who will try it just for fun
and then generate a lot of list noise when they have problems.  On the
other hand, this is a risk you also take by putting up a CVS server, or
running a mailing list.  There's a balance there somewhere.  =)

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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From: "Pedot, Wolfgang" <wpedot@harris.com>
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Subject: [parisc-linux] 2.4.14 and ISA-NE2000 StackDump
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Hi,

I just tried to update to 2.4.14-pa6 and noticed a stackdump during
initialisation of my old NE2000 ISA-Nic which works fine using the last 2.4.9
Kernel. After this stackdump i booted (reset used) 2.4.9 again and the machine
hung without any message druring initialistaion of the NE2000 (right after
"NE*000 ethercard probe at 0x300:"). I had to power-cycle the machine to make it
work again.

Heres the log-message:

Last modified Nov 1, 2000 by Paul Gortmaker
NE*000 ethercard probe at 0x300:WARNING! Stack pointer and cr30 do not
correspond!

Dumping Stack from 100fe000 to 100fe380:
e000 ffca5940 ffca5940 7f7fffff ffffffff 7f7fffff ffffffff 00000000 00000000
e020 00000000 00000000 41800000 00000000 00000010 00000010 00000000 00000000
e040 ffca5940 ffca5940 41000000 00000000 40800000 00000000 ffca5940 ffca5940
e060 41000000 00000000 ffca5940 ffca5940 40800000 00000000 41000000 00000000
e080 40300000 00000000 40200000 00000000 40200000 00000000 41800000 ffca5940
e0a0 40000000 00000000 40000000 00000000 40800000 00000000 41000000 00000000
e0c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e0e0 00000000 00000000 101030b0 10107500 00000000 00000000 00000000 00000000
e100 102bd810 0000001d 4fc83f01 00000010 100fdc80 0000000f 00000002 0000000a
e120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e160 00000000 00000000 00000000 10107500 00000000 00000000 00000000 00000000
e180 100fdc80 102acb94 ffffffff 00000004 08000000 00000000 00000000 00000000
e1a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e1c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e1e0 00000000 00000000 00000000 1010307c 00000000 00000000 10220a88 04000000
e200 00000080 00000300 100fdf40 102acb94 ffffffff 00000003 10000000 00000000
e220 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e240 101b6864 00000000 00000000 103a6400 100ff160 00000000 00000000 00000000
e260 00000000 00000000 00000000 10102f94 00000000 00000000 00000000 00000000
e280 102ac810 00000010 0000000c 00000023 00000001 102ac8dc 00000000 00000000
e2a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
e2c0 00000000 00000000 00000000 00000000 101d33b4 00000000 00000000 10291d5c
e2e0 f0821000 00000000 00000000 1010311c 00000000 00000000 00000000 00000000
e300 102bd810 100fdf40 100fdf40 100ff060 00000400 00000015 00000055 00000000
e320 102ac810 100fdec0 102bd810 00000002 10292cc0 00000000 100f8708 102bd810
e340 100fdec0 08000059 f0000694 fc0000a1 0000000e 00000001 00000004 1038e010
e360 0000000a 000000a1 00000001 10102f94 00000057 100fdec0 100fe300 10102f94

Bad Address (null pointer deref?): Code=6 regs=100fe380 (Addr=50412d43)


any hints?
Are there any guys arround here which made their ne2000 work with 2.4.14?

greetings

Wolfgang Pedot




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Hi all,

May I now safely upgrade my palinux box with :

binutils_2.11.92.0.10-3_hppa.deb
gcc-3.0_3.0.2-3_hppa.deb
libgcc1_3.0.2-3_hppa.deb
libstdc++3_3.0.2-3_hppa.deb
g++-3.0_3.0.2-3_hppa.deb
cpp_3.0.2-10_hppa.deb
gcc_3.0.2-10_hppa.deb
libc6_2.2.4-6_hppa.deb

Thanks in advance for advises,
        Joel


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>
>>  unconfigure the ATM card and remove it from the eisa cage, but the
>>  system still seems not to see the 10baseT AUI adaptor, no lights are
>>  lit, not even the power one.
>Hm... that doesn't seem right.  Have you tried a different AUI adapter?
>sounds like faulty hardware somewhere :(
I've just tried all of the dozen or so AUI connectors that I have. No 
reaction.  Do I have to configure something int the ISL menu to get 
it to use the AUI connector instead of the ATM or the 10B2?
Aaron

-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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Can anyone give me a hint where rpm is failing ?



do_page_fault() pid=27461 command='rpm' type=6 address=0x6bc63f53
vm_start = 0x001e9000, vm_end = 0x00209000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 00110800 0007c04f bff00a08
r4-7     001b9000 00000009 002085f0 0020866c
r8-11    00002001 00200eb0 bff008d4 00206f60
r12-15   001df060 00000000 bff00504 00000102
r16-19   00000000 001f6fe8 00200eb0 001b9000
r20-23   00074834 00200f5c 6bc63f51 00000002
r24-27   bff00a08 00000009 00000009 001dd860
r28-31   001e4108 00000000 bff00ac0 0007c04f
sr0-3    000046f4 000046f4 00000000 000046f4
sr4-7    000046f4 000046f4 000046f4 000046f4

IASQ: 000046f4 000046f4 IAOQ: 6bc63f53 6bc63f57
 IIR: 43ffff80    ISR: 000046f4  IOR: 00074850
 CPU:        0   CR30: 11034000 CR31: 10350000
 ORIG_R28: 00200f40


bofh:/chr/lib# uname -a
Linux bofh 2.4.9-pa70 #1 Tue Nov 6 15:38:47 GMT 2001 parisc unknown

-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.



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On Mon, Nov 19, 2001 at 04:34:22PM +0000, Richard Allen wrote:
> do_page_fault() pid=27461 command='rpm' type=6 address=0x6bc63f53

looks like it branched to hyperspace.  "k\AE?S" as a string, so it's
not obviously ascii.  looks like it came from 0x0007c04f, so that might
be a good place to start tracing.

maybe rpm is broken (who would notice?  i can't imagine many people are
using rpm on hppa :-) -- tried recompiling it?

-- 
Revolutions do not require corporate support.



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> 
> Can anyone give me a hint where rpm is failing ?

Wow that really jumped into hyperspace!  Maybe a bad function
pointer.  Generally r2 (0007c04f) is inside the calling function
and IAOQ is inside the currently-executing function, but in this
case it's bogus.  Look up r2 in rpm's symbol table to get a hint.

	-P
> 
> 
> do_page_fault() pid=27461 command='rpm' type=6 address=0x6bc63f53
> vm_start = 0x001e9000, vm_end = 0x00209000
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111
> r0-3     00000000 00110800 0007c04f bff00a08
> r4-7     001b9000 00000009 002085f0 0020866c
> r8-11    00002001 00200eb0 bff008d4 00206f60
> r12-15   001df060 00000000 bff00504 00000102
> r16-19   00000000 001f6fe8 00200eb0 001b9000
> r20-23   00074834 00200f5c 6bc63f51 00000002
> r24-27   bff00a08 00000009 00000009 001dd860
> r28-31   001e4108 00000000 bff00ac0 0007c04f
> sr0-3    000046f4 000046f4 00000000 000046f4
> sr4-7    000046f4 000046f4 000046f4 000046f4
> 
> IASQ: 000046f4 000046f4 IAOQ: 6bc63f53 6bc63f57
>  IIR: 43ffff80    ISR: 000046f4  IOR: 00074850
>  CPU:        0   CR30: 11034000 CR31: 10350000
>  ORIG_R28: 00200f40
> 
> 
> bofh:/chr/lib# uname -a
> Linux bofh 2.4.9-pa70 #1 Tue Nov 6 15:38:47 GMT 2001 parisc unknown
> 
> -- 
> Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
>                --  Solaris 7 Certified Systems and Network Administrator.
> Bell Labs Unix --  Reach out and grep someone.
> Those who do not understand Unix are condemned to reinvent it, poorly.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Christoph Plattner wrote:
> I have rewritten my whole stuff on the current CVS snapshot from the end
> of this week (2.4.14-pa6).

wow! you've been busy...let's see if we can get that into
the CVS tree this time around...last May was a bad time to
introduce that.

...
> In general, the CONFIG stuff has to be adapted. On that stuff, my
> experience is not that what other LINUX hacker's expect ...

That can be sorted out if you post to the list.

> Further, is there a developer ChangeLog file to do entries per file ?

NAFAICT. CVS log serves that purpose.


> No SCSI controller is deteced, not the parallel interface,
> and the mulitplexer board. For these three componets, drivers are
> needed, and the DOCUMENTATION !!!

The documentation still hasn't been sanitized for publication.
Are you willing to sign an NDA that lets you publish code you write?

For us, that's the easiest way...anything else requires substantially
more work for our manager. He's busy enough already and no one
else inside HP has volunteered to review/clean the docs.

> I will add my current CVS diffings of my extensions very soon, at the
> moment the CVS server seems to be down!

cvs.p-l.org was never down.  Internet routing was broken Saturday AM PST.
Seems to be fixed and working again.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253



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On Mon, Nov 19, 2001 at 04:40:26PM +0000, Matthew Wilcox wrote:

> On Mon, Nov 19, 2001 at 04:34:22PM +0000, Richard Allen wrote:
> > do_page_fault() pid=27461 command='rpm' type=6 address=0x6bc63f53
> 
> looks like it branched to hyperspace.  "k\AE?S" as a string, so it's
> not obviously ascii.  looks like it came from 0x0007c04f, so that might
> be a good place to start tracing.

Wow :)   that was fast :)
Mmmh.  it doesnt dump core so I can attempt to run it under gdb.
or ?    No gdb for parisc ?

> maybe rpm is broken (who would notice?  i can't imagine many people are
> using rpm on hppa :-) -- tried recompiling it?

I did recompile it ;)   Im working with it in a chrooted environment
and Im toying with creating a RedHat distro for parisc.  Im doing it
mainly to experience the hardships of creating a distro for a new
platform :)    Dependancies are a b**ch :-)
I've got my chrooted env to the point where I can rebuild SRPMS with
rpm but it wont install them.

chrooted# rpm --version
RPM version 4.0.3
rooted# ls -l /usr/src/redhat/RPMS/parisc/
total 116
-rw-r--r--    1 root     root        38287 Nov 19 16:27 zlib-1.1.3-24.parisc.rpm
-rw-r--r--    1 root     root        71816 Nov 19 16:27 zlib-devel-1.1.3-24.parisc.rpm

rpm still cant install outside the chrooted env. so I guess something is
wrong in rpm..


-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.



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Richard Allen wrote:
> rpm still cant install outside the chrooted env. so I guess something is
> wrong in rpm..

Well, that might the clue.
Are you picking up all the binutils/glibc patches that have been
introduced recently?

I'm inclined to think its a mismatch between library versions
or something like that unless you grabbed the sources from the
debian archives.

grant



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> On Mon, Nov 19, 2001 at 04:40:26PM +0000, Matthew Wilcox wrote:
> 
> > On Mon, Nov 19, 2001 at 04:34:22PM +0000, Richard Allen wrote:
> > > do_page_fault() pid=27461 command='rpm' type=6 address=0x6bc63f53
> > 
> > looks like it branched to hyperspace.  "k\AE?S" as a string, so it's
> > not obviously ascii.  looks like it came from 0x0007c04f, so that might
> > be a good place to start tracing.
> 
> Wow :)   that was fast :)
> Mmmh.  it doesnt dump core so I can attempt to run it under gdb.
> or ?    No gdb for parisc ?

Not sure of the status of core dumps (did you check your shell's 'ulimit'?)
but gdb works.  Grab sources from http://ftp.parisc-linux.org/cvs/


	-P



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Aaron Macks writes:
- >>  unconfigure the ATM card and remove it from the eisa cage, but the
- >>  system still seems not to see the 10baseT AUI adaptor, no lights are
- >>  lit, not even the power one.
- >
- >Hm... that doesn't seem right.  Have you tried a different AUI adapter?
- >sounds like faulty hardware somewhere :(

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Paul Bame writes...

> > On Mon, Nov 19, 2001 at 04:40:26PM +0000, Matthew Wilcox wrote:
> > 
> > > On Mon, Nov 19, 2001 at 04:34:22PM +0000, Richard Allen wrote:
> > > > do_page_fault() pid=27461 command='rpm' type=6 address=0x6bc63f53
> > > 
> > > looks like it branched to hyperspace.  "k\AE?S" as a string, so it's
> > > not obviously ascii.  looks like it came from 0x0007c04f, so that might
> > > be a good place to start tracing.
> > 
> > Wow :)   that was fast :)
> > Mmmh.  it doesnt dump core so I can attempt to run it under gdb.
> > or ?    No gdb for parisc ?
> 
> Not sure of the status of core dumps (did you check your shell's 'ulimit'?)
> but gdb works.  Grab sources from http://ftp.parisc-linux.org/cvs/

Or grab a static deb from

ftp://ftp.parisc-linux.org/unofficial-debs/gdb-hppa_5.0-4.pehc.2_hppa.deb

We can't do official debs until gdb is merged up to current upstream cvs.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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On Mon, Nov 19, 2001 at 10:52:59AM -0700, Matt Taggart wrote:
> We can't do official debs until gdb is merged up to current upstream cvs.

Speaking of which... is anyone volunteering to do this?

-- 
Revolutions do not require corporate support.



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On Sat, 2001-11-17 at 19:24, Christoph Plattner wrote:
> Hi Thomas !
> 
> Here are the current status of the E55:
> 
> I have rewritten my whole stuff on the current CVS snapshot from the end
> of this week (2.4.14-pa6).

Dang, you have been busy!  Nice work!

> (1) TTY driver for the PDC console, used in polling mode (30ms) as
> device
> 	/dev/ttyB0:
> 	- only tested via serial line !
> 	- is configured together with CONFIG_SERIAL_CONSOLE, if ARCH is
> 		parisc (XXX: TODO a config via menu for PDC CONSOLE DRIVER)
> 	- a node (/dev/ttyB0 c 30 0) must be created
> 	- /etc/inittab should have a login on /dev/ttyB0
> 	- the kernel line parameter `console=ttyB0' must be set
> 
> 	Driver works for complete Linux stuff, including `login' and editing
> 	on the `bash'.

I am very interested in this patch.  I am currently working on the
K-Class machines, and I have the same problem you did, where you have a
MUX instead of a inturrupt driven console port.  With this patch, I
think I could get K-Class to install from the upcoming 0.9.3 iso image
:) Are you planning on committing soon? Or could I get a patch from you?

> (2) LED support for the "RUN" and "ATTENTION" LED (cuppled to the
> heartbeat of
> 	700er machines. If the heartbeart is active, E55 shows "RUN", otherwise
> 	the machine indicates "ATTENTION"). So the status can be influenced
> 	by the `/proc/pdc/led' entry.
> 	This LED driver is activated by the model name "9000/856" (E55), so
> 	for further machines of similar types, the model names have to be
> 	added.
> 
> In general, the CONFIG stuff has to be adapted. On that stuff, my
> experience 
> is not that what other LINUX hacker's expect ...
> 
> Further, is there a developer ChangeLog file to do entries per file ?
> 
> So the E55 server can be booted diskless by BOOTP(DHCP)/TFTP and boots
> up. Ethernet is full functioning, the console works on port 0 of the
> 8-port multiplexer. No SCSI controller is deteced, not the parallel
> interface,
> and the mulitplexer board. For these three componets, drivers are
> needed,
> and the DOCUMENTATION !!!

I assume you are refering to the HP-PB bus cards.  We should probably
coordinate our efforts on this since I plan on cutting my teeth at
driver writing on some of these cards.

Nice to see all the hardwork you have done!  Good Job.

-  Ryan


> I hope, parts of my stuff (or all plus improvments concerning
> configuration)
> will come into the kernel main stream to have this "start" of E55 server
> in the kernel.
> 
> I will add my current CVS diffings of my extensions very soon, at the
> moment
> the CVS server seems to be down ! (Please contact me, if you have
> interest !)
> 
> With friendly regards
> Christoph P.
> 
> 
> 
> Thomas Marteau wrote:
> > 
> > Hi Christoph,
> > 
> >         I am updating our list of working hardware. Could you tell me if you
> > know something about the status of PA/Linux on E55?
> > 
> > Thanks for your answer, Thomas.
> > ESIEE Team
> 
> -- 
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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PT_CR30 used to exist in offset.h, see

http://cvs.parisc-linux.org/linux/include/asm-parisc/ptrace.h.diff?r1=1.12&r2=1.13

I just checked out the latest gdb source from cvs.parisc-linux.org and
changed PT_CR30 in gdb/pa-linux-nat.c to '-1'.  Builds now.  the gdbserver
stuff wouldn't build anyway, as it tries to include offsets.h, not offset.h.

btw, there is a gdb .deb on http://ftp.parisc-linux.org/unofficial-debs

Richard


On Mon, Nov 12, 2001 at 05:16:37PM -0500, Griffin, Aubrey, BMCIO wrote:
> All,
> 
> I am trying to compile GDB.
> 
> I downloaded gdb-20011024 from http://ftp.parisc-linux.org/cvs/
> 
> The compilation of gdb failed. There is an undefined constant PT_CR30. This
> is used in
> gdb/pa-linux-nat.c and gdb/gdb/gdbserver/low-linux.c.
> 
> Some PT_ constants are defined in /usr/include/asm/offset.h, but not
> PT_CR30.
> 
> Should this gdb bundle compile?
> 
> Is there another gdb package that compiles on this platform?
> 
> All help is appreciated.
> 
> Thanks in advance,
> Aubrey Griffin
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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On Mon, Nov 19, 2001 at 10:50:54AM +0100, Jan-Benedict Glaw wrote:
> From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
> To: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Re: rsync for CVS repository
> Date: Mon, 19 Nov 2001 10:50:54 +0100
> 
Hi Jan-Benedict,

I happen to have 'some' HP 715/50 boxes which just happened to become 'available'.
You'd need to supply your own SCSI disk(s), because the ones I have
are 'sort of loud', and probably within an hour or two of a head-crash
(whereby I'm not too sure which side of the hour they're on ;-)

If you want to set them up as autobuilders or whatever, we could probably 
add them to the farm at/near source.rfc822.org ;-)

I'm using an HP 715/100 at home; works like a charm; (uptime 27 days).

At the moment I'm just lurking, until we can safely 
`apt-get update && apt-get upgrade && apt-get moo` again ;-)

Richard (aka OpaH)
-- 
Unix:        Your gun, Your bullet, Your foot, Your choice.
M$-CE/ME/NT: Same as Unix, BUT: No choice, and We Aim Higher.
Have a nice day ;-) Richard Higson mailto:richard.higson@gt.owl.de



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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] 2.4.14 and ISA-NE2000 StackDump
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Hi Wolfgang,

I've no problems here with my ISA NE2000 and kernel 2.4.14-pa7:

NE*000 ethercard probe at 0x340: 08 00 00 50 11 13
eth0: NE2000 found at 0x340, using IRQ 10.

pa64:~# uname -a
Linux pa64 2.4.14-pa7 #2 Mon Nov 19 19:43:37 CET 2001 parisc unknown

pa64:~# cat /proc/interrupts
 IRQ      count         Region    ISR
 10:       2346            EISA  NE2000

Sadly I've no idea why it doesn't work for you...

Greetings,
Helge

On Monday 19 November 2001 15:16, Pedot, Wolfgang wrote:
> Hi,
>
> I just tried to update to 2.4.14-pa6 and noticed a stackdump during
> initialisation of my old NE2000 ISA-Nic which works fine using the last
> 2.4.9 Kernel. After this stackdump i booted (reset used) 2.4.9 again and
> the machine hung without any message druring initialistaion of the NE2000
> (right after "NE*000 ethercard probe at 0x300:"). I had to power-cycle the
> machine to make it work again.
>
> Heres the log-message:
>
> Last modified Nov 1, 2000 by Paul Gortmaker
> NE*000 ethercard probe at 0x300:WARNING! Stack pointer and cr30 do not
> correspond!
>
> Bad Address (null pointer deref?): Code=6 regs=100fe380 (Addr=50412d43)
>
> any hints?
> Are there any guys arround here which made their ne2000 work with 2.4.14?
> greetings
>
> Wolfgang Pedot




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Hi,

I'm just curious what the state of the PA-RISC support of the
official linux kernel is (2.4.14 from kernel.org).

IMHO I assume that the latest Linux/PA-RISC progress didn't and won't
make it in the official linux kernel tree (at least not soon), am I right ?
(I don't see any hppa changes in the kernel-Changelogs at all)

Probably due to the fact that Linux/PA-RISC is still somewhat
experimental and probably some design issues are not fixed yet.
Are there any plans to integrate the lastest stuff into the
linux main tree (soon) ?

What about gcc, gdb, glibc and binutils ? How long do you think does it
take to get the current fixes/patches into a release ?

AFAIK RedHat/Cygnus supports/maintains gcc, gdb, glibc and binutils.
Are there (usually) any problems to get the patches/fixes (of gcc, gdb,
...) into a official release ? How good is the cooperation with the main
developers of these tools/libraries ? RedHat doesn't seem to be interested
in an Linux/PA-RISC port and debian is something like a competitor ...

Just curious,
  max




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Anyone have any thoughts on this? In particular the question about whether
setjmp/longjmp preserve the stack. 

When I try to have the code use ucontext (getcontext/setcontext) instead, it
gets complaints from glibc about setcontext/getcontext being unimplemented.

Is parisc linux more like ia64 or x86? I'd presume that I might just have to
use the ucontext stuff, but that's going to be difficult if libc doesn't
support it.

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216


-----Original Message-----
From: chas williams [mailto:chas@cmf.nrl.navy.mil] 
Sent: Monday, November 19, 2001 1:11 PM
To: Neulinger, Nathan
Subject: Re: Porting LWP 


>I know you've been involved with alot of the previous porting efforts in
>AFS. I was hoping you could give some tips on porting LWP.

just a few really, not really that many.

>I've been doing some work trying to get openafs functional on
>parisc_linux24, but LWP definately appears to be the problem at this point.
>(Note, openafs fully compiles, but anything using threads fails.)

lwp is probably the most difficult part of userland.  it truly is
a serious pain.  it would be nice if someone made lwp just use pthreads.
however, its just a gleam in someones eye for now.

>I did get the LWP_SP stuff corrected, had some trouble with that at first,
>but am not sure where else to concentrate on. I generally get segmentation
>faults on everything in savecontext.

the last time i worked on a parisc system i noted that that the 
stack grew UP and not down.  parisc might do the same.  the linux
swp code assumes that the stack grows down (atleast i am pretty sure
it does)

you usually can verify which way the stack goes with something like
the following

sub()
{
	int stack2;
	printf("%x\n", &stack2);
}

main()
{
	int stack1;
	printf("%x\n", &stack1);
	sub();
}

if stack grows up, stack2 is greater than stack1.  if stack grows down,
stack2 less than stack1.  (or so i think)

other than that, parisc might need more space saved on the stack.
you should also make sure you setjmp/longjmp preserve the stack info
(check any comments in the glibc source).  it doesnt on the ia64 and
i had to use ucontext() instead.



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Hi,

I'm a little bit confused.

Some ports (such as parisc, sparc, sparc64 ...) use gcc-3.x in their
distributions, even to compile the linux kernel.
IMHO they use the lastest gcc since it has better support and more recent
bug fixes for the according platforms.
But I've read that gcc-3.0.x is not officially supported as a kernel
compiler, since is still has some bugs. Are these bugs just x86 related
(I doubt it) or do you accept the risk that gcc might produce garbage ?
Does this actually happen ?

greetings max





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> Some ports (such as parisc, sparc, sparc64 ...) use gcc-3.x in their
> distributions, even to compile the linux kernel.
> IMHO they use the lastest gcc since it has better support and more recent
> bug fixes for the according platforms.
> But I've read that gcc-3.0.x is not officially supported as a kernel
> compiler, since is still has some bugs. Are these bugs just x86 related
> (I doubt it) or do you accept the risk that gcc might produce garbage ?
> Does this actually happen ?

gcc 3.0.2 is officially released by the FSF. We have been using it for
building both kernel and user space apps for some time. While there are
still some occasional bugs, in general it seems to be working well.

afaik the 3.x compilers are the only ones available for parisc-linux.
There are no 2.9x compilers for this platform.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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> I'm just curious what the state of the PA-RISC support of the
> official linux kernel is (2.4.14 from kernel.org).

2.4.14 kernel images are now available from the Debian archive. It is
also available from parisc-linux cvs.

I'm not sure what's the status of merging into the main tree though.

> What about gcc, gdb, glibc and binutils ? How long do you think does it
> take to get the current fixes/patches into a release ?

We work with folks that are "upstream" for these tools to incorporate
parisc specific changes into the mainline sources. Other than gdb I
believe we have very little debian/parisc specific patches.

> AFAIK RedHat/Cygnus supports/maintains gcc, gdb, glibc and binutils.
> Are there (usually) any problems to get the patches/fixes (of gcc, gdb,
> ...) into a official release ? How good is the cooperation with the main
> developers of these tools/libraries ? RedHat doesn't seem to be interested
> in an Linux/PA-RISC port and debian is something like a competitor ...

Without guessing about any political issues, I'd say that upstream has
been very cooperative in general in accepting parisc-linux port changes.
I'm not sure why you think this is/will be otherwise.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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On Mon, Nov 19, 2001 at 07:40:28PM +0000, Markus Grabert wrote:
> Hi,
> 
> I'm just curious what the state of the PA-RISC support of the
> official linux kernel is (2.4.14 from kernel.org).
> 
> IMHO I assume that the latest Linux/PA-RISC progress didn't and won't
> make it in the official linux kernel tree (at least not soon), am I right ?
> (I don't see any hppa changes in the kernel-Changelogs at all)

Not while there are multiple changes per day - anyone with a parisc
machine tracks the parisc-kernel anyway, so what would be the point?

> 
> Probably due to the fact that Linux/PA-RISC is still somewhat
> experimental and probably some design issues are not fixed yet.
> Are there any plans to integrate the lastest stuff into the
> linux main tree (soon) ?

I gather there's more use in fixing bugs than merging. Also see above.

> 
> What about gcc, gdb, glibc and binutils ? How long do you think does it
> take to get the current fixes/patches into a release ?

There's some tough bugs at the moment, and I hope that after those are
squashed our hard-working developers will have the time to concentrate
on the kernel, with a relatively stable parisc development userland.

> 
> AFAIK RedHat/Cygnus supports/maintains gcc, gdb, glibc and binutils.
> Are there (usually) any problems to get the patches/fixes (of gcc, gdb,
> ...) into a official release ? How good is the cooperation with the main
> developers of these tools/libraries ? RedHat doesn't seem to be interested
> in an Linux/PA-RISC port and debian is something like a competitor ...
> 
You can't be serious. Debian/parisc is no competitior of RedHat. I
assume there would be no problem getting fixes in if they are the right
fixes. At this moment, I haven't seen a clear email saying: 'all bugs in
the development tools have been found, go forth and apt-get update!'.

Good luck,
Jurriaan
-- 
IBM: I'm Beyond Mistakes
GNU/Linux 2.4.15-pre6 on Debian/Alpha 64-bits 988 bogomips load:0.15 0.53 0.61



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Subject: [parisc-linux] hppa kernel-headers.deb and offset.h
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Hi Bdale,
  Our kernel-headers debs are missing asm/offset.h, which is created
late on in a kernel build.  I only just noticed, when I tried to build
gdb.  I'm guessing that deb is created without doing a full kernel build,
so the file isn't created.  Note offset.h is different for 32 and 64 bit
kernels, and we want a 32 bit version in the kernel-headers deb.

Maybe the kernel should build offset.h as part of make dep, or something.

Also...
glibc build should use kernel-headers, but I guess libc6-dev_2.2.4-6
was built using some local kernel tree for the headers, and has picked
up a 64 bit offset.h.  so, anyone trying to build gdb will have to
replace their offset.h.

Richard




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> But I've read that gcc-3.0.x is not officially supported as a kernel
> compiler, since is still has some bugs. Are these bugs just x86 related
> (I doubt it) or do you accept the risk that gcc might produce garbage ?

The advice is basically x86 - for example gcc 3.0.1 gives a compiler error
trying to build some 2.4 drivers right now. With the ports it varies - the
parisc tree uses its own compiler chain based on gcc 3.



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On Mon, Nov 19, 2001 at 01:44:45PM -0600, Neulinger, Nathan wrote:
> Anyone have any thoughts on this? In particular the question about whether
> setjmp/longjmp preserve the stack. 

It ought to... it's just a function call, IIRC.

> When I try to have the code use ucontext (getcontext/setcontext) instead, it
> gets complaints from glibc about setcontext/getcontext being unimplemented.

Hmm... file a bug against that, please.

> the last time i worked on a parisc system i noted that that the 
> stack grew UP and not down.  parisc might do the same.  the linux
> swp code assumes that the stack grows down (atleast i am pretty sure
> it does)

The code in glibc used to assume that.  It's been fixed since we found
it easier to keep the stack growing up.

-- 
Revolutions do not require corporate support.



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Hallo Thomas,
hallo Grant,

finally the CVS was working again.

I have no login for your CVS so I will send the `cvs diff -u' and the
newly
added file `drivers/char/pdc_drv.c'.

Some notes here:

* In my console drivers (serial and PDC) I always added code, that the
machine
can be resetted via `^\' (Ctrl-\) for development (especially for
machines 
without reset button as the E55 server). I removed this code for sending
the
CVS diffs.

* There is no CONFIG_ stuff for the PDC console, the console is
initialised
	in `arch/kernel/pdc_cons.c' (EARLY_BOOTUP_DEBUG) and the tty driver
	has a __init constructor routine.

  ATTENTION: It is very important to have the init code in the
pdc_cons.c
	executed before the ttyBn driver is used, otherwise the first access
	to the PDC driver (echo hallo > /dev/ttyB0) leads to a blocking
	machine ....

  The driver can also be used on machines running true serial console,
	by `echo hallo > /dev/ttyB0'. But the mix on the serial console
	of ttyS0 driver and ttyB0 driver is not recommended !!

* The driver as console is only tested on the server E55 (model
9000/856)
	and the HP apollo 700 series (9000/720/50), in both cases the
	machine was configured to use the serial line.
	Further I tested the kernel on a 712/60 machine, having PDC console
	on STI device. Here the PDC console is used correctly, but then
	the console switches to the colored frame buffer (and the text is
	completly BLUE (!) and is overwriting the poor TUX !
	I think here is a bug in the console handling not staying on the
	configured device (has nothing to do with my stuff) or it is a
	feature ti have full STI support if it possible ... 
	But /dev/ttyB0 is never used together with an STI able machine .. :-)

* I added the `CP:' to my modules or `XXX CP:' if there is something to
do ...

* As I cannot checkin, I have no way to give change logs, so I will do
here
a short list:

- pdc_drv.c: Added file, PDC console tty driver for linux, /dev/ttyBn, 
	n=0 (only)

- pdc_cons.c: Added keyboard polling routine, added an function entry to
get
	an device entry for the console driver to "connet" the pdc_cons 
	driver to the PDC tty driver

- pdc.h: Added prototypes used for console and LEDs

- firmware.c: Added reading access to the PDC console (was former used
for 
	waiting on a keypress), readded the pdc_chassis_disp () (was removed 
	in the meantime, but at the current state I use it for the E55 LEDs).

- led.c: Added a "trial" version of a LED controlling. Only RUN and
ATTENTION
	LED is supported. RUN/ATTENTION stated derived from state of the 
	HEART-BEAT LED (flashing->RUN, off->ATTENTION), and so the LEDs are 
	also accessable via PROC-FS. The LED activation of my routines is
	derived from the model name (hard coded 9000/856) for my tests.
	How to deal with this in the future ?

- major.h: Added free major 30 (character device) for PDC console
(ttyBn).

- drivers/char/Makefile: pdc_drv.o added (per hack) to arch PARISC
dependent code.

The code builds warning-free.

Again to test:

1. Compile and have a look that the pdc_drv.o is included in
drivers/char/Makefile
2. dev entry /dev/ttyB0 c 30 0
3. /etc/inittab, have a login at ttyB0
4. Added the `ttyB0' device to /etc/securetty, if you want login as
`root' on the
	console
5. kernel line parameter with `console=ttyB0'

(ad 1): In the future (if somebody can help me) we want to have a config
item in
the kernel configuration for the PDC console. 


I attch two files:
	- linux-cvs.diff-20011119.log
		Diffs displayed by `cvs -z9 diff -u .'
	- pdc_drv.c
		The new file (simple displayed as `? drivers/char/pdc_drv.c')
		The file has to be checked in at `drivers/char'

I hope you can use it and will add it to the mainstream kernel ...

Bye
Christoph P.



Thomas Marteau wrote:
> 
> Hi Christoph,
> 
>         I am updating our list of working hardware. Could you tell me if you
> know something about the status of PA/Linux on E55?
> 
> Thanks for your answer, Thomas.
> ESIEE Team

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at
--------------1E8A96BFBBE9740FC7B66A32
Content-Type: text/plain; charset=us-ascii;
 name="linux-cvs.diff-20011119.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="linux-cvs.diff-20011119.log"

? drivers/char/pdc_drv.c
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Index: arch/parisc/kernel/firmware.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/firmware.c,v
retrieving revision 1.36
diff -u -r1.36 firmware.c
--- arch/parisc/kernel/firmware.c	2001/11/13 23:25:45	1.36
+++ arch/parisc/kernel/firmware.c	2001/11/19 22:17:48
@@ -136,6 +136,15 @@
 }
 
 /**
+ * pdc_chassis_disp, used for E-series (for example E55)
+ */
+
+int pdc_chassis_disp(unsigned long disp)
+{
+        return mem_pdc_call(PDC_CHASSIS, PDC_CHASSIS_DISP, disp);
+}
+
+/**
  * pdc_chassis_info - Return chassis information.
  * @result: The return buffer.
  * @chassis_info: The memory buffer address.
@@ -681,6 +690,59 @@
                     PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers),
                     __pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0);
         spin_unlock_irqrestore(&pdc_lock, flags);
+}
+
+/* write character directly without convertings */
+
+void pdc_iodc_outc(unsigned char c)
+{
+	/* fill buffer with one caracter and print it */
+        static int __attribute__((aligned(8)))   iodc_retbuf[32];
+        static char __attribute__((aligned(64))) iodc_dbuf[4096];
+	unsigned int n;
+
+	iodc_dbuf[0] = c;
+	n = 1;
+	{
+		real32_call(PAGE0->mem_cons.iodc_io,
+			(unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
+			PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers),
+			__pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0);
+	}
+}
+
+/* read NON-BLOCKING a character from the PDC console,
+   returns -1, if no key is present */
+
+int pdc_iodc_getc(void)
+{
+        static int __attribute__((aligned(8)))   iodc_retbuf[32];
+        static char __attribute__((aligned(64))) iodc_dbuf[4096];
+	int ch;
+	int status;
+
+	/* Bail if no console input device. */
+	if (!PAGE0->mem_kbd.iodc_io)
+		return 0;
+	
+	/* wait for a keyboard (rs232)-input */
+	do {
+		unsigned long flags;
+
+		save_flags(flags);
+		cli();
+		status = real32_call(PAGE0->mem_kbd.iodc_io,
+			(unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN,
+			PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers),
+			__pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
+		restore_flags(flags);
+		ch = *iodc_dbuf;	/* save the character directly to ch */
+	} while (0) ;                   /* once !! */
+
+	if (*iodc_retbuf == 0)	        /* no key */
+	    ch = -1;
+	
+	return ch;
 }
 
 int pdc_sti_call(unsigned long func, unsigned long flags,
Index: arch/parisc/kernel/led.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/led.c,v
retrieving revision 1.24
diff -u -r1.24 led.c
--- arch/parisc/kernel/led.c	2001/10/22 15:45:36	1.24
+++ arch/parisc/kernel/led.c	2001/11/19 22:17:49
@@ -51,6 +51,30 @@
 static int led_lanrxtx = 1;
 static char lcd_text[32] = {0};
 
+/*****
+ * stuff for E55 and similar server with RUN/ATTENTION LED
+ */
+
+#define LED_CHASSIS_OFF            0
+#define LED_CHASSIS_FAULT          1
+#define LED_CHASSIS_TEST           2
+#define LED_CHASSIS_INIT           3
+#define LED_CHASSIS_SHUTDOWN       4
+#define LED_CHASSIS_WARNING        5
+#define LED_CHASSIS_RUN            6
+#define LED_CHASSIS_ALL_ON         7
+
+#define LED_CHASSIS_BYTE(v) ((unsigned long)((v) << 1))
+#define LED_CHASSIS_DISP_DATA(v) ((unsigned long)(LED_CHASSIS_BYTE(v) << 16))
+extern int pdc_chassis_disp (unsigned long);
+extern int pdc_model_sysmodel (char *);
+static int use_chassis_call = 0;
+static int chassis_run_mode = 0;
+
+void led_chassis_run (void);
+void led_chassis_attention (void);
+void led_chassis_init (void);
+
 #if 0
 #define DPRINTK(x)	printk x
 #else
@@ -450,13 +474,24 @@
 
 	if (led_heartbeat)
 	{
+		/* for server with RUN led, switch it on, heartbeat is active,
+		   led_chassis_run() checks itself, if a machine of this
+		   type is used */
+		led_chassis_run ();
+		
 		/* flash heartbeat-LED like a real heart (2 x short then a long delay) */
 		if (count_HZ<HEARTBEAT_LEN || 
 		    (count_HZ>=HEARTBEAT_2ND_RANGE_START && count_HZ<HEARTBEAT_2ND_RANGE_END)) 
 		    currentleds |= LED_HEARTBEAT;
 		else
 		    currentleds &= ~LED_HEARTBEAT;
+	} else {
+		/* if no heartbeat, also let light ATTENTION on some
+		   machine. led_chassis_attention() will check itself,
+		   if a machine of this type is used */
+		led_chassis_attention();
 	}
+	
 
 	/* gather network and diskio statistics and flash LEDs respectively */
 
@@ -541,7 +576,10 @@
 	else
 		if (led_func_ptr)
 			led_func_ptr(0xff); /* turn all LEDs ON */
-	
+	/* call led_chassis_attention(), routine cheks itself, if
+	   this display type is valid */
+	led_chassis_attention();
+
 	unregister_reboot_notifier(&led_notifier);
 	return NOTIFY_OK;
 }
@@ -673,6 +711,54 @@
 	return lcd_info.lcd_width;
 }
 
+
+/*
+   ** HP E55 (and similar) stuff
+   **
+   ** These series has only static LED
+   **
+   ** At the moment only two will be supported
+   **    RUN
+   **    ATTENTION
+   **
+   ** These to LEDs are used disjunct
+*/
+
+void led_chassis_run (void)
+{
+	if (use_chassis_call && !chassis_run_mode) {
+		pdc_chassis_disp (LED_CHASSIS_DISP_DATA(LED_CHASSIS_RUN));
+		chassis_run_mode = 1;
+	}
+}
+
+void led_chassis_attention (void)
+{
+	if (use_chassis_call && chassis_run_mode) {
+		pdc_chassis_disp (LED_CHASSIS_DISP_DATA(LED_CHASSIS_INIT));
+		chassis_run_mode = 0;
+	}
+}
+
+void led_chassis_init (void)
+{
+#define MODBUF_LEN 32
+	char buf [MODBUF_LEN];  /* small enough to lay on stack */
+	
+	if (pdc_model_sysmodel (buf) < 0) {
+		printk (KERN_NOTICE "%s: error reading sys model\n", 
+			__FUNCTION__);
+		return;
+	}
+	
+	if (strncmp (buf, "9000/856", MODBUF_LEN) == 0)
+		use_chassis_call = 1;
+
+	/* XXX CP: Add other models ! */
+
+	chassis_run_mode = 0;
+}
+
 /*
    ** led_init()
    ** 
@@ -703,6 +789,8 @@
 	}
 
 	/* initialize the struct, so that we can check for valid return values */
+	led_chassis_init();
+
 	lcd_info.model = DISPLAY_MODEL_NONE;
 	chassis_info.actcnt = chassis_info.maxcnt = 0;
 
Index: arch/parisc/kernel/pdc_cons.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/pdc_cons.c,v
retrieving revision 1.29
diff -u -r1.29 pdc_cons.c
--- arch/parisc/kernel/pdc_cons.c	2001/11/13 23:35:01	1.29
+++ arch/parisc/kernel/pdc_cons.c	2001/11/19 22:17:49
@@ -12,9 +12,19 @@
 
 /* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems. 
  * On production kernels EARLY_BOOTUP_DEBUG should be undefined. */
-#undef EARLY_BOOTUP_DEBUG
 
+/* #undef EARLY_BOOTUP_DEBUG */
 
+/* CP 
+   activate PDC console in any case for testing the ttyB0
+
+   TODO: This must be activated if a "CONFIG_PDC_CONSOLE" is
+   configured (necessary), otherwise the EARLY_BOOTUP_DEBUG should
+   be undefined !
+*/
+#define EARLY_BOOTUP_DEBUG
+
+
 #include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/console.h>
@@ -35,16 +45,32 @@
 		pdc_iodc_putc(*s++);
 }
 
+void pdc_outc(unsigned char c)
+{
+	pdc_iodc_outc(c);
+}
+
+
+int pdc_console_poll_key(struct console *co)
+{
+	return pdc_iodc_getc();
+}
+
 static int pdc_console_setup(struct console *co, char *options)
 {
 	return 0;
 }
 
+static kdev_t pdc_console_device (struct console *c)
+{
+        return MKDEV(PDCCONS_MAJOR, 0);
+}
+
 static struct console pdc_cons = {
 	name:		"ttyB",
 	write:		pdc_console_write,
 	read:		NULL,
-	device:		NULL, 
+	device:		pdc_console_device, 
 	wait_key:	NULL,
 	unblank:	NULL,
 	setup:		pdc_console_setup,
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Index: drivers/char/Makefile
===================================================================
RCS file: /var/cvs/linux/drivers/char/Makefile,v
retrieving revision 1.23
diff -u -r1.23 Makefile
--- drivers/char/Makefile	2001/11/09 23:35:36	1.23
+++ drivers/char/Makefile	2001/11/19 22:17:51
@@ -64,6 +64,10 @@
 endif
 
 ifeq ($(ARCH),parisc)
+   # XXX CP: Added for all PA-RISC architecture, 
+   #         should be made configurable ...
+   obj-y += pdc_drv.o
+
    ifdef CONFIG_GSC_PS2
      KEYBD   = hp_psaux.o hp_keyb.o
    else
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Index: include/asm-parisc/pdc.h
===================================================================
RCS file: /var/cvs/linux/include/asm-parisc/pdc.h,v
retrieving revision 1.37
diff -u -r1.37 pdc.h
--- include/asm-parisc/pdc.h	2001/11/13 22:26:51	1.37
+++ include/asm-parisc/pdc.h	2001/11/19 22:18:13
@@ -816,7 +816,9 @@
 int pdc_do_reset(void);
 int pdc_soft_power_info(unsigned long *power_reg);
 void pdc_soft_power_shutdown(void);
+int pdc_iodc_getc(void);
 void pdc_iodc_putc(unsigned char c);
+void pdc_iodc_outc(unsigned char c);
 
 int pdc_sti_call(unsigned long func, unsigned long flags,
                  unsigned long inptr, unsigned long outputr,
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Index: include/linux/major.h
===================================================================
RCS file: /var/cvs/linux/include/linux/major.h,v
retrieving revision 1.10
diff -u -r1.10 major.h
--- include/linux/major.h	2001/11/09 23:37:14	1.10
+++ include/linux/major.h	2001/11/19 22:18:34
@@ -63,6 +63,7 @@
 #define ACSI_MAJOR	28
 #define AZTECH_CDROM_MAJOR 29
 #define GRAPHDEV_MAJOR	29	/* SparcLinux & Linux/68k /dev/fb */
+#define PDCCONS_MAJOR   30      /* CP: PDC console */
 #define SHMIQ_MAJOR	85	/* Linux/mips, SGI /dev/shmiq */
 #define CM206_CDROM_MAJOR 32
 #define IDE2_MAJOR	33
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--------------1E8A96BFBBE9740FC7B66A32
Content-Type: text/plain; charset=us-ascii;
 name="pdc_drv.c"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="pdc_drv.c"

/*
 *  linux/drivers/char/pdc_drv.c
 *
 *  2001, Christoph Plattner
 * 
 *  Driver template was linux's serial.c
 *
 */

static char *pdc_drv_version = "0.3";
static char *pdc_drv_revdate = "2001-11-17";
#define AUTHOR "christoph.plattner@gmx.at"
#include <linux/config.h>
#include <linux/version.h>

#undef PDC_DRV_DEBUG

#undef SERIAL_PARANOIA_CHECK
#define CONFIG_SERIAL_NOPAUSE_IO
#define SERIAL_DO_RESTART

#define PDC_POLL_DELAY (30 * HZ / 1000)

/*
 * End of serial driver configuration section.
 */

#include <linux/module.h>

#include <linux/types.h>
#ifdef LOCAL_HEADERS
#include "serial_local.h"
#else
#include <linux/serial.h>
#include <linux/serialP.h>
#include <linux/serial_reg.h>
#include <asm/serial.h>
#define LOCAL_VERSTRING ""
#endif

#include <linux/errno.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/major.h>
#include <linux/string.h>
#include <linux/fcntl.h>
#include <linux/ptrace.h>
#include <linux/ioport.h>
#include <linux/mm.h>
#include <linux/slab.h>
#if (LINUX_VERSION_CODE >= 131343)
#include <linux/init.h>
#endif
#if (LINUX_VERSION_CODE >= 131336)
#include <asm/uaccess.h>
#endif
#include <linux/delay.h>

/*
 * All of the compatibilty code so we can compile serial.c against
 * older kernels is hidden in serial_compat.h
 */
#if defined(LOCAL_HEADERS) || (LINUX_VERSION_CODE < 0x020317) /* 2.3.23 */
#include "serial_compat.h"
#endif

#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/bitops.h>

#ifdef CONFIG_GSC
#include <asm/gsc.h>
#endif

extern int pdc_console_poll_key(void *);
extern void pdc_outc(unsigned char);

#ifdef SERIAL_INLINE
#define _INLINE_ inline
#else
#define _INLINE_
#endif

static char *pdc_drv_name = "PDC driver";

static struct tty_driver pdc_drv_driver;
static int pdc_drv_refcount = 0;
static struct async_struct * pdc_drv_info;

static struct timer_list pdc_drv_timer;

/* serial subtype definitions */
#ifndef SERIAL_TYPE_NORMAL
#define SERIAL_TYPE_NORMAL	1
#define SERIAL_TYPE_CALLOUT	2
#endif

#define NR_PORTS 1
#define PDC_DUMMY_BUF 2048

static struct tty_struct *pdc_drv_table[NR_PORTS];
static struct termios *pdc_drv_termios[NR_PORTS];
static struct termios *pdc_drv_termios_locked[NR_PORTS];

/*
 * tmp_buf is used as a temporary buffer by serial_write.  We need to
 * lock it in case the copy_from_user blocks while swapping in a page,
 * and some other program tries to do a serial write at the same time.
 * Since the lock will only come under contention when the system is
 * swapping and available memory is low, it makes sense to share one
 * buffer across all the serial ports, since it significantly saves
 * memory if large numbers of serial ports are open.
 */
static unsigned char *tmp_buf;
#ifdef DECLARE_MUTEX
static DECLARE_MUTEX(tmp_buf_sem);
#else
static struct semaphore tmp_buf_sem = MUTEX;
#endif


/*
 * ------------------------------------------------------------
 * pdc_stop() and pdc_start()
 *
 * This routines are called before setting or resetting tty->stopped.
 * They enable or disable transmitter interrupts, as necessary.
 * ------------------------------------------------------------
 */
static void pdc_stop(struct tty_struct *tty)
{
}

static void pdc_start(struct tty_struct *tty)
{
}

/*
 * ----------------------------------------------------------------------
 *
 * Here starts the interrupt handling routines.  All of the following
 * subroutines are declared as inline and are folded into
 * rs_interrupt().  They were separated out for readability's sake.
 *
 * Note: rs_interrupt() is a "fast" interrupt, which means that it
 * runs with interrupts turned off.  People who may want to modify
 * rs_interrupt() should try to keep the interrupt handler as fast as
 * possible.  After you are done making modifications, it is not a bad
 * idea to do:
 * 
 * gcc -S -DKERNEL -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer serial.c
 *
 * and look at the resulting assemble code in serial.s.
 *
 * 				- Ted Ts'o (tytso@mit.edu), 7-Mar-93
 * -----------------------------------------------------------------------
 */

static _INLINE_ void receive_chars(struct async_struct *info,
				 int *status, struct pt_regs * regs)
{
	struct tty_struct *tty = info->tty;
	unsigned char ch;
	int __ch;

	while (1) {
		__ch = pdc_console_poll_key (NULL);

		if (__ch == -1)   /* no character available */
		    break;

		ch = (unsigned char)((unsigned)__ch & 0x000000ffu);
		
		if (tty->flip.count >= TTY_FLIPBUF_SIZE)
			continue;

		*tty->flip.char_buf_ptr = ch;
		*tty->flip.flag_buf_ptr = 0;

		tty->flip.flag_buf_ptr++;
		tty->flip.char_buf_ptr++;
		tty->flip.count++;
	}

#if (LINUX_VERSION_CODE > 131394) /* 2.1.66 */
	tty_flip_buffer_push(tty);
#else
	queue_task_irq_off(&tty->flip.tqueue, &tq_timer);
#endif	
}

static void pdc_drv_poll (unsigned long dummy)
{
    struct async_struct * info;
    int status = 0;

    info = pdc_drv_info;
    
    if (!info || !info->tty || (pdc_drv_refcount == 0)) 
    {
	/* do nothing */
    }
    else
    {
	receive_chars(info, &status, NULL);
	info->last_active = jiffies;
    }

    mod_timer (& pdc_drv_timer, jiffies + PDC_POLL_DELAY);
}


static void pdc_put_char(struct tty_struct *tty, unsigned char ch)
{
#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: return\n");
#endif	
	pdc_outc (ch);
}

static void pdc_flush_chars(struct tty_struct *tty)
{
	/* PCD console always flushed all characters */

#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: return\n");
#endif	

	/* nothing to do */
}

static int pdc_write(struct tty_struct * tty, int from_user,
		    const unsigned char *buf, int count)
{
	char pdc_tmp_buf [PDC_DUMMY_BUF];
	char * pdc_tmp_buf_ptr;
	int len;
	int ret = 0;
				
#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: entry\n");
#endif	
	while (count) {
		if (count < PDC_DUMMY_BUF)
			len = count;
		else 
			len = PDC_DUMMY_BUF;
		
		if (from_user) {
			copy_from_user (pdc_tmp_buf, buf, len);
			pdc_tmp_buf_ptr = pdc_tmp_buf;
		}
		else
			pdc_tmp_buf_ptr = (char *) buf;
		
		while (len) {
			pdc_outc (*pdc_tmp_buf_ptr);
			buf++;
			pdc_tmp_buf_ptr++;
			ret++;
			count--;
			len--;
		}
	}
#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: return\n");
#endif	
	return ret;
}

static int pdc_write_room(struct tty_struct *tty)
{
#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: entry\n");
#endif	
	return PDC_DUMMY_BUF;
}

static int pdc_chars_in_buffer(struct tty_struct *tty)
{
#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: entry\n");
#endif	
	return 0; /* no characters in buffer, always flushed ! */
}

static void pdc_flush_buffer(struct tty_struct *tty)
{
#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: return\n");
#endif	
}

/*
 * This function is used to send a high-priority XON/XOFF character to
 * the device
 */
static void pdc_send_xchar(struct tty_struct *tty, char ch)
{
}

/*
 * ------------------------------------------------------------
 * pdc_throttle()
 * 
 * This routine is called by the upper-layer tty layer to signal that
 * incoming characters should be throttled.
 * ------------------------------------------------------------
 */
static void pdc_throttle(struct tty_struct * tty)
{
}

static void pdc_unthrottle(struct tty_struct * tty)
{
}

/*
 * ------------------------------------------------------------
 * pdc_ioctl() and friends
 * ------------------------------------------------------------
 */

static void pdc_break(struct tty_struct *tty, int break_state)
{
}


static int pdc_ioctl(struct tty_struct *tty, struct file * file,
		    unsigned int cmd, unsigned long arg)
{
	struct async_struct *info = (struct async_struct *)tty->driver_data;
	
	if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
	    (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) &&
	    (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) {
		if (tty->flags & (1 << TTY_IO_ERROR))
		    return -EIO;
	}
	
	switch (cmd) {
		case TIOCMGET:
			return 0;
		case TIOCMBIS:
		case TIOCMBIC:
		case TIOCMSET:
			return 0;
		case TIOCGSERIAL:
			return 0;
		case TIOCSSERIAL:
			return 0;
		case TIOCSERCONFIG:
			return 0;

		case TIOCSERGETLSR: /* Get line status register */
			return 0;

		case TIOCSERGSTRUCT:
			if (copy_to_user((struct async_struct *) arg,
					 info, sizeof(struct async_struct)))
				return -EFAULT;
			return 0;
				
		case TIOCMIWAIT:
			return 0;

		case TIOCGICOUNT:
			return 0;
		case TIOCSERGWILD:
		case TIOCSERSWILD:
			/* "setserial -W" is called in Debian boot */
			printk ("TIOCSER?WILD ioctl obsolete, ignored.\n");
			return 0;

		default:
			return -ENOIOCTLCMD;
		}
	return 0;
}

static void pdc_set_termios(struct tty_struct *tty, struct termios *old_termios)
{
	
#if 0	/* XXX CP, has to be checked, if there is stuff to do */
	struct async_struct *info = (struct async_struct *)tty->driver_data;
	unsigned long flags;
	unsigned int cflag = tty->termios->c_cflag;

	if (   (cflag == old_termios->c_cflag)
	    && (   RELEVANT_IFLAG(tty->termios->c_iflag) 
		== RELEVANT_IFLAG(old_termios->c_iflag)))
	  return;
#if 0
	change_speed(info, old_termios);
#endif
	/* Handle turning off CRTSCTS */
	if ((old_termios->c_cflag & CRTSCTS) &&
	    !(tty->termios->c_cflag & CRTSCTS)) {
		tty->hw_stopped = 0;
		pdc_start(tty);
	}
#endif
}

/*
 * ------------------------------------------------------------
 * pdc_close()
 * 
 * This routine is called when the serial port gets closed.  First, we
 * wait for the last remaining data to be sent.  Then, we unlink its
 * async structure from the interrupt chain if necessary, and we free
 * that IRQ if nothing is left in the chain.
 * ------------------------------------------------------------
 */
static void pdc_close(struct tty_struct *tty, struct file * filp)
{
	struct async_struct * info = (struct async_struct *)tty->driver_data;

#ifdef PDC_DEBUG_OPEN
	printk("pdc_close ttyB%d, count = %d\n", info->line, state->count);
#endif
	pdc_drv_refcount--;
	if (pdc_drv_refcount > 0)
	    return;
	
	info->flags |= ASYNC_CLOSING;

	/*
	 * Save the termios structure, since this port may have
	 * separate termios for callout and dialin.
	 */
	if (info->flags & ASYNC_NORMAL_ACTIVE)
		info->state->normal_termios = *tty->termios;
	if (info->flags & ASYNC_CALLOUT_ACTIVE)
		info->state->callout_termios = *tty->termios;

	/*
	 * At this point we stop accepting input.  To do this, we
	 * disable the receive line status interrupts, and tell the
	 * interrupt driver to stop checking the data ready bit in the
	 * line status register.
	 */

	/* XXX CP: make mask for receive !!! */

	if (tty->driver.flush_buffer)
		tty->driver.flush_buffer(tty);
	if (tty->ldisc.flush_buffer)
		tty->ldisc.flush_buffer(tty);
	tty->closing = 0;
	info->event = 0;
	info->tty = 0;
	pdc_drv_info = NULL;
	if (info->blocked_open) {
		if (info->close_delay) {
			set_current_state(TASK_INTERRUPTIBLE);
			schedule_timeout(info->close_delay);
		}
		wake_up_interruptible(&info->open_wait);
	}
	info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CALLOUT_ACTIVE|
			 ASYNC_CLOSING);
	wake_up_interruptible(&info->close_wait);
	MOD_DEC_USE_COUNT;
}

/*
 * pdc_wait_until_sent() --- wait until the transmitter is empty
 */
static void pdc_wait_until_sent(struct tty_struct *tty, int timeout)
{
	/* we always send immideate */
}

/*
 * pdc_hangup() --- called by tty_hangup() when a hangup is signaled.
 */
static void pdc_hangup(struct tty_struct *tty)
{
}

/*
 * ------------------------------------------------------------
 * pdc_open() and friends
 * ------------------------------------------------------------
 */

static int get_async_struct(int line, struct async_struct **ret_info)
{
	struct async_struct *info;
	
	info = kmalloc(sizeof(struct async_struct), GFP_KERNEL);
	if (!info) {
		return -ENOMEM;
	}
	memset(info, 0, sizeof(struct async_struct));
	init_waitqueue_head(&info->open_wait);
	init_waitqueue_head(&info->close_wait);
	init_waitqueue_head(&info->delta_msr_wait);
	info->magic = SERIAL_MAGIC;
	info->port = 0;
	info->flags = 0;
	info->io_type = 0;
	info->iomem_base = 0;
	info->iomem_reg_shift = 0;
	info->xmit_fifo_size = PDC_DUMMY_BUF;
	info->line = line;
	info->tqueue.routine = NULL;
	info->tqueue.data = info;
	info->state = NULL;
	*ret_info = info;
	return 0;
}

/*
 * This routine is called whenever a serial port is opened.  It
 * enables interrupts for a serial port, linking in its async structure into
 * the IRQ chain.   It also performs the serial-specific
 * initialization for the tty structure.
 */
static int pdc_open(struct tty_struct *tty, struct file * filp)
{
	struct async_struct	*info;
	int 			retval, line;
	unsigned long		page;
	
	MOD_INC_USE_COUNT;
	line = MINOR(tty->device) - tty->driver.minor_start;
	if ((line < 0) || (line >= NR_PORTS)) {
		MOD_DEC_USE_COUNT;
		return -ENODEV;
	}
	retval = get_async_struct(line, &info);
	if (retval) {
		MOD_DEC_USE_COUNT;
		return retval;
	}
	tty->driver_data = info;
	info->tty = tty;
	pdc_drv_info = info;
	
#ifdef PDC_DEBUG_OPEN
	printk("pdc_open %s%d, count = %d\n", tty->driver.name, info->line,
	       info->state->count);
#endif
#if (LINUX_VERSION_CODE > 0x20100)
	info->tty->low_latency = 0;
#endif

	if (!tmp_buf) {
		page = get_zeroed_page(GFP_KERNEL);
		if (!page) {
			MOD_DEC_USE_COUNT;
			return -ENOMEM;
		}
		if (tmp_buf)
			free_page(page);
		else
			tmp_buf = (unsigned char *) page;
	}

	info->session = current->session;
	info->pgrp = current->pgrp;

#ifdef PDC_DEBUG_OPEN
	printk("pdc_open ttyB%d successful...", info->line);
#endif
	pdc_drv_refcount++;
	return 0;
}

/*
 * ---------------------------------------------------------------------
 * pdc_init() and friends
 *
 * pdc_init() is called at boot-time to initialize the pdc driver.
 * ---------------------------------------------------------------------
 */

static _INLINE_ void show_pdc_drv_version(void)
{
 	printk(KERN_INFO "%s version %s%s (%s), %s\n", pdc_drv_name,
	       pdc_drv_version, LOCAL_VERSTRING, pdc_drv_revdate,
	       AUTHOR);
}

/*
 * The serial driver boot-time initialization code!
 */
static int __init pdc_drv_init(void)
{
	init_timer(&pdc_drv_timer);
	pdc_drv_timer.function = pdc_drv_poll;
	mod_timer(&pdc_drv_timer, jiffies + PDC_POLL_DELAY);

	show_pdc_drv_version();

	/* Initialize the tty_driver structure */
	
	memset(&pdc_drv_driver, 0, sizeof(struct tty_driver));
	pdc_drv_driver.magic = TTY_DRIVER_MAGIC;
#if (LINUX_VERSION_CODE > 0x20100)
	pdc_drv_driver.driver_name = "pdc_drv";
#endif
#if (LINUX_VERSION_CODE > 0x2032D && defined(CONFIG_DEVFS_FS))
	pdc_drv_driver.name = "ttb/%d";
#else
	pdc_drv_driver.name = "ttyB";
#endif
	pdc_drv_driver.major = PDCCONS_MAJOR;
	pdc_drv_driver.minor_start = 0;
	pdc_drv_driver.num = NR_PORTS;
	pdc_drv_driver.type = TTY_DRIVER_TYPE_SERIAL;
	pdc_drv_driver.subtype = SERIAL_TYPE_NORMAL;
	pdc_drv_driver.init_termios = tty_std_termios;
	pdc_drv_driver.init_termios.c_cflag =
		B9600 | CS8 | CREAD | HUPCL | CLOCAL;
	pdc_drv_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
	pdc_drv_driver.refcount = &pdc_drv_refcount;
	pdc_drv_driver.table = pdc_drv_table;
	pdc_drv_driver.termios = pdc_drv_termios;
	pdc_drv_driver.termios_locked = pdc_drv_termios_locked;

	pdc_drv_driver.open = pdc_open;
	pdc_drv_driver.close = pdc_close;
	pdc_drv_driver.write = pdc_write;
	pdc_drv_driver.put_char = pdc_put_char;
	pdc_drv_driver.flush_chars = pdc_flush_chars;
	pdc_drv_driver.write_room = pdc_write_room;
	pdc_drv_driver.chars_in_buffer = pdc_chars_in_buffer;
	pdc_drv_driver.flush_buffer = pdc_flush_buffer;
	pdc_drv_driver.ioctl = pdc_ioctl;
	pdc_drv_driver.throttle = pdc_throttle;
	pdc_drv_driver.unthrottle = pdc_unthrottle;
	pdc_drv_driver.set_termios = pdc_set_termios;
	pdc_drv_driver.stop = pdc_stop;
	pdc_drv_driver.start = pdc_start;
	pdc_drv_driver.hangup = pdc_hangup;
#if (LINUX_VERSION_CODE >= 131394) /* Linux 2.1.66 */
	pdc_drv_driver.break_ctl = pdc_break;
#endif
#if (LINUX_VERSION_CODE >= 131343)
	pdc_drv_driver.send_xchar = pdc_send_xchar;
	pdc_drv_driver.wait_until_sent = pdc_wait_until_sent;
	pdc_drv_driver.read_proc = NULL;
#endif
	
	if (tty_register_driver(&pdc_drv_driver))
		panic("Couldn't register pdc_drv driver\n");
	
	return 0;
}

static void __exit pdc_fini(void) 
{
	int e1;

	if ((e1 = tty_unregister_driver(&pdc_drv_driver)))
		printk("pdc_drv: failed to unregister pdc_drv driver (%d)\n",
		       e1);
}


module_init(pdc_drv_init);
module_exit(pdc_fini);
MODULE_DESCRIPTION("PDC driver");
MODULE_AUTHOR(AUTHOR);


--------------1E8A96BFBBE9740FC7B66A32--





From - Thu Nov 08 21:20:31 2018
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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: E55 status - ADDENDUM TO DRIVER
Date: Tue, 20 Nov 2001 00:04:14 +0100
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To: Thomas Marteau <marteaut@esiee.fr>,
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	"parisc-linux@lists.parisc-linux.org" <parisc-linux@lists.parisc-linux.org>
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Here a thing to note ....

The PDC tty driver should never be used as module, this would not make
any sense. So the `init_module' routines at the end should be deleted.

The driver was never tested as MODULE !!
The console is further nedded, before any module can be loaded !!

Bye
Christoph 


Christoph Plattner wrote:
> 
> Hallo Thomas,
> hallo Grant,
> 
> finally the CVS was working again.
> 
> I have no login for your CVS so I will send the `cvs diff -u' and the
> newly
> added file `drivers/char/pdc_drv.c'.
> 
> Some notes here:
> 
> * In my console drivers (serial and PDC) I always added code, that the
> machine
> can be resetted via `^\' (Ctrl-\) for development (especially for
> machines
> without reset button as the E55 server). I removed this code for sending
> the
> CVS diffs.
> 
> * There is no CONFIG_ stuff for the PDC console, the console is
> initialised
>         in `arch/kernel/pdc_cons.c' (EARLY_BOOTUP_DEBUG) and the tty driver
>         has a __init constructor routine.
> 
>   ATTENTION: It is very important to have the init code in the
> pdc_cons.c
>         executed before the ttyBn driver is used, otherwise the first access
>         to the PDC driver (echo hallo > /dev/ttyB0) leads to a blocking
>         machine ....
> 
>   The driver can also be used on machines running true serial console,
>         by `echo hallo > /dev/ttyB0'. But the mix on the serial console
>         of ttyS0 driver and ttyB0 driver is not recommended !!
> 
> * The driver as console is only tested on the server E55 (model
> 9000/856)
>         and the HP apollo 700 series (9000/720/50), in both cases the
>         machine was configured to use the serial line.
>         Further I tested the kernel on a 712/60 machine, having PDC console
>         on STI device. Here the PDC console is used correctly, but then
>         the console switches to the colored frame buffer (and the text is
>         completly BLUE (!) and is overwriting the poor TUX !
>         I think here is a bug in the console handling not staying on the
>         configured device (has nothing to do with my stuff) or it is a
>         feature ti have full STI support if it possible ...
>         But /dev/ttyB0 is never used together with an STI able machine .. :-)
> 
> * I added the `CP:' to my modules or `XXX CP:' if there is something to
> do ...
> 
> * As I cannot checkin, I have no way to give change logs, so I will do
> here
> a short list:
> 
> - pdc_drv.c: Added file, PDC console tty driver for linux, /dev/ttyBn,
>         n=0 (only)
> 
> - pdc_cons.c: Added keyboard polling routine, added an function entry to
> get
>         an device entry for the console driver to "connet" the pdc_cons
>         driver to the PDC tty driver
> 
> - pdc.h: Added prototypes used for console and LEDs
> 
> - firmware.c: Added reading access to the PDC console (was former used
> for
>         waiting on a keypress), readded the pdc_chassis_disp () (was removed
>         in the meantime, but at the current state I use it for the E55 LEDs).
> 
> - led.c: Added a "trial" version of a LED controlling. Only RUN and
> ATTENTION
>         LED is supported. RUN/ATTENTION stated derived from state of the
>         HEART-BEAT LED (flashing->RUN, off->ATTENTION), and so the LEDs are
>         also accessable via PROC-FS. The LED activation of my routines is
>         derived from the model name (hard coded 9000/856) for my tests.
>         How to deal with this in the future ?
> 
> - major.h: Added free major 30 (character device) for PDC console
> (ttyBn).
> 
> - drivers/char/Makefile: pdc_drv.o added (per hack) to arch PARISC
> dependent code.
> 
> The code builds warning-free.
> 
> Again to test:
> 
> 1. Compile and have a look that the pdc_drv.o is included in
> drivers/char/Makefile
> 2. dev entry /dev/ttyB0 c 30 0
> 3. /etc/inittab, have a login at ttyB0
> 4. Added the `ttyB0' device to /etc/securetty, if you want login as
> `root' on the
>         console
> 5. kernel line parameter with `console=ttyB0'
> 
> (ad 1): In the future (if somebody can help me) we want to have a config
> item in
> the kernel configuration for the PDC console.
> 
> I attch two files:
>         - linux-cvs.diff-20011119.log
>                 Diffs displayed by `cvs -z9 diff -u .'
>         - pdc_drv.c
>                 The new file (simple displayed as `? drivers/char/pdc_drv.c')
>                 The file has to be checked in at `drivers/char'
> 
> I hope you can use it and will add it to the mainstream kernel ...
> 
> Bye
> Christoph P.
> 
> Thomas Marteau wrote:
> >
> > Hi Christoph,
> >
> >         I am updating our list of working hardware. Could you tell me if you
> > know something about the status of PA/Linux on E55?
> >
> > Thanks for your answer, Thomas.
> > ESIEE Team
> 
> --
> -------------------------------------------------------
> private:        christoph.plattner@gmx.at
> company:        christoph.plattner@alcatel.at
> 
>   ------------------------------------------------------------------------
-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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On Tue, Nov 20, 2001 at 12:04:14AM +0100, Christoph Plattner wrote:
> The PDC tty driver should never be used as module, this would not make
> any sense. So the `init_module' routines at the end should be deleted.

init_module indicates the entry point of a module.  it is NOT only for
dynamically loadable modules.  if the module is built in to the kernel,
it is called during the __initcall section of bootup.

-- 
Revolutions do not require corporate support.



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Let's try a quick audit...

On Mon, Nov 19, 2001 at 11:42:29PM +0100, Christoph Plattner wrote:
> cvs server: Diffing .
> cvs server: Diffing Documentation

could you use the cvsrc distributed as part of build-tools?  it removes
this extra verbiage...

> +	/* wait for a keyboard (rs232)-input */
> +	do {
> +		unsigned long flags;
> +
> +		save_flags(flags);
> +		cli();
> +		status = real32_call(PAGE0->mem_kbd.iodc_io,
> +			(unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN,
> +			PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers),
> +			__pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
> +		restore_flags(flags);
> +		ch = *iodc_dbuf;	/* save the character directly to ch */
> +	} while (0) ;                   /* once !! */

please use spin_lock_irqsave/restore instead.

> #ifdef SERIAL_INLINE
> #define _INLINE_ inline
> #else
> #define _INLINE_
> #endif

i hate this.  all examples of this have been removed from our tree afaik..

have to go out now... back later.

-- 
Revolutions do not require corporate support.



From - Thu Nov 08 21:20:32 2018
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X-Mozilla-Keys:                                                                                 
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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Toolchain improved, archive better, proceed with caution
Date: Mon, 19 Nov 2001 16:46:54 -0700
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The hppa-linux toolchain is much improved and in the Debian "unstable" 
archive. The "woody" tree still probably needs a few days to get sane again. 
There are still some outstanding toolchain problems but nothing major that 
affects runtime. So...

It is reasonably safe[1] to apt-get upgrade your "unstable" hppa-linux boxes. 
Some services, sshd in particular, may need to be restarted by hand. Keep this 
in mind when upgrading remotely.

Once the archive is reasonably stable and a few other things are done, we will 
be looking at doing another release, hopefully in the next week or so.

Please update your systems and report any problems to the correct list,

kernel and toolchain -> parisc-linux@parisc-linux.org
userspace and packaging -> debian-hppa@lists.debian.org

[1] as safe as it ever is to upgrade an "unstable" system

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] Re: E55 status - NEW CVS DIFF (DRIVER)
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This is a multi-part message in MIME format.
--------------D1202EA6272D226F6FF46EFF
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Hello again !

I have redone the stuff and have incorporated your commenst.
Further I have sent my two files as tar.gz, as the leading '>' may
also come from the mailer environment, as `-u' definitly does not
write '>' or '<', only +/-.

I have used the settings from the `.cvsrc' now.

Bye
Christoph P.



Matthew Wilcox wrote:
> 
> Let's try a quick audit...
> 
> On Mon, Nov 19, 2001 at 11:42:29PM +0100, Christoph Plattner wrote:
> > cvs server: Diffing .
> > cvs server: Diffing Documentation
> 
> could you use the cvsrc distributed as part of build-tools?  it removes
> this extra verbiage...
> 
> > +     /* wait for a keyboard (rs232)-input */
> > +     do {
> > +             unsigned long flags;
> > +
> > +             save_flags(flags);
> > +             cli();
> > +             status = real32_call(PAGE0->mem_kbd.iodc_io,
> > +                     (unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN,
> > +                     PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers),
> > +                     __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
> > +             restore_flags(flags);
> > +             ch = *iodc_dbuf;        /* save the character directly to ch */
> > +     } while (0) ;                   /* once !! */
> 
> please use spin_lock_irqsave/restore instead.
> 
> > #ifdef SERIAL_INLINE
> > #define _INLINE_ inline
> > #else
> > #define _INLINE_
> > #endif
> 
> i hate this.  all examples of this have been removed from our tree afaik..
> 
> have to go out now... back later.
> 
> --
> Revolutions do not require corporate support.

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at
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From - Thu Nov 08 21:20:32 2018
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Subject: [parisc-linux] How to burn the CD?
Date: Tue, 20 Nov 2001 01:37:07 +0100 (CET)
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Well... Now I have the cd's downloaded (took a loong time for my 33.6modem
to download).
Now to the next problem: How to burn?
The problem here is:
I only got 1 cd-burner, and that device is in my Pa-risc-box, becouse it
uses scsi, and I dont have any other mashines here that have scsi-cards.
The pa-risc (712/60) still uses Hp/UX 10.20...

Anyony knowing how to use the cd-burner in HpUX10.20 on a pa-risc?

Another question: My HpUX-install-cd didn't boot on the cdrom...
Is there any wrong with my burned cd with hpux, the cdrom-device or the
mashine (pa712/60)? I hope it is the hp-install-cd becouse if it is the
hardware, then I'm not beeing able to boot the linux-install-cd ether.




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From: Matt.VanDeWerken@csiro.au
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Subject: RE: [parisc-linux] How to burn the CD?
Date: Tue, 20 Nov 2001 10:50:15 +1000
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G'day 'xfs':

I posted here a little while back how to install without having a CDROM
drive. You could use this same method if you can't burn the cd, and have a
couple of spare external SCSI drives.

Cheers,
Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - 4069 - AUSTRALIA
ph:  +61-7-3327 4685     fax:  +61-7-3327 4455
email:  matt.vandewerken@csiro.au


> -----Original Message-----
> From: xfs@linux.se [mailto:xfs@linux.se]
> Sent: Tuesday, 20 November 2001 10:37 AM
> To: parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] How to burn the CD?
> 
> 
> Well... Now I have the cd's downloaded (took a loong time for 
> my 33.6modem
> to download).
> Now to the next problem: How to burn?
> The problem here is:
> I only got 1 cd-burner, and that device is in my Pa-risc-box, 
> becouse it
> uses scsi, and I dont have any other mashines here that have 
> scsi-cards.
> The pa-risc (712/60) still uses Hp/UX 10.20...
> 
> Anyony knowing how to use the cd-burner in HpUX10.20 on a pa-risc?
> 
> Another question: My HpUX-install-cd didn't boot on the cdrom...
> Is there any wrong with my burned cd with hpux, the 
> cdrom-device or the
> mashine (pa712/60)? I hope it is the hp-install-cd becouse if 
> it is the
> hardware, then I'm not beeing able to boot the linux-install-cd ether.
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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From: Richard Hirst <rhirst@linuxcare.com>
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On Tue, Nov 20, 2001 at 10:50:15AM +1000, Matt.VanDeWerken@csiro.au wrote:
> G'day 'xfs':
> 
> I posted here a little while back how to install without having a CDROM
> drive. You could use this same method if you can't burn the cd, and have a
> couple of spare external SCSI drives.

I think you posted on how to install without a cd or a network.  If xfs
has a network, he may be able to install via that much more easily.

Cheers,
  Richard




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] How to burn the CD?
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xfs@linux.se writes...

> Anyony knowing how to use the cd-burner in HpUX10.20 on a pa-risc?

cdrecord (and XCDRoast) can be made to work on HP-UX if you can't find another 
easier solution.

> Another question: My HpUX-install-cd didn't boot on the cdrom...
> Is there any wrong with my burned cd with hpux, the cdrom-device or the
> mashine (pa712/60)? I hope it is the hp-install-cd becouse if it is the
> hardware, then I'm not beeing able to boot the linux-install-cd ether.

What type of cdrom drive is it? Firmware only supports certain types. Try 
doing a "sea"rch in the firmware interface with a "known bootable on hppa 
systems" cd in the drive. If the search finds it then you should be able to 
boot from it.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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Subject: [parisc-linux] Re: E55 status - THE DRIVER !
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This is a multi-part message in MIME format.
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I had forgotten to add the "THE DRIVER" to the subject, so you may
oversee
the driver's code, sent as attachment in my pre-last mail.

To be sure, here the attachments again !


---- original mail ----

Hallo Thomas,
hallo Grant,

finally the CVS was working again.

I have no login for your CVS so I will send the `cvs diff -u' and the
newly
added file `drivers/char/pdc_drv.c'.

Some notes here:

* In my console drivers (serial and PDC) I always added code, that the
machine
can be resetted via `^\' (Ctrl-\) for development (especially for
machines 
without reset button as the E55 server). I removed this code for sending
the
CVS diffs.

* There is no CONFIG_ stuff for the PDC console, the console is
initialised
        in `arch/kernel/pdc_cons.c' (EARLY_BOOTUP_DEBUG) and the tty
driver
        has a __init constructor routine.

  ATTENTION: It is very important to have the init code in the
pdc_cons.c
        executed before the ttyBn driver is used, otherwise the first
access
        to the PDC driver (echo hallo > /dev/ttyB0) leads to a blocking
        machine ....

  The driver can also be used on machines running true serial console,
        by `echo hallo > /dev/ttyB0'. But the mix on the serial console
        of ttyS0 driver and ttyB0 driver is not recommended !!

* The driver as console is only tested on the server E55 (model
9000/856)
        and the HP apollo 700 series (9000/720/50), in both cases the
        machine was configured to use the serial line.
        Further I tested the kernel on a 712/60 machine, having PDC
console
        on STI device. Here the PDC console is used correctly, but then
        the console switches to the colored frame buffer (and the text
is
        completly BLUE (!) and is overwriting the poor TUX !
        I think here is a bug in the console handling not staying on the
        configured device (has nothing to do with my stuff) or it is a
        feature ti have full STI support if it possible ... 
        But /dev/ttyB0 is never used together with an STI able machine
.. :-)

* I added the `CP:' to my modules or `XXX CP:' if there is something to
do ...

* As I cannot checkin, I have no way to give change logs, so I will do
here
a short list:

- pdc_drv.c: Added file, PDC console tty driver for linux, /dev/ttyBn, 
        n=0 (only)

- pdc_cons.c: Added keyboard polling routine, added an function entry to
get
        an device entry for the console driver to "connet" the pdc_cons 
        driver to the PDC tty driver

- pdc.h: Added prototypes used for console and LEDs

- firmware.c: Added reading access to the PDC console (was former used
for 
        waiting on a keypress), readded the pdc_chassis_disp () (was
removed 
        in the meantime, but at the current state I use it for the E55
LEDs).

- led.c: Added a "trial" version of a LED controlling. Only RUN and
ATTENTION
        LED is supported. RUN/ATTENTION stated derived from state of the 
        HEART-BEAT LED (flashing->RUN, off->ATTENTION), and so the LEDs
are 
        also accessable via PROC-FS. The LED activation of my routines
is
        derived from the model name (hard coded 9000/856) for my tests.
        How to deal with this in the future ?

- major.h: Added free major 30 (character device) for PDC console
(ttyBn).

- drivers/char/Makefile: pdc_drv.o added (per hack) to arch PARISC
dependent code.

The code builds warning-free.

Again to test:

1. Compile and have a look that the pdc_drv.o is included in
drivers/char/Makefile
2. dev entry /dev/ttyB0 c 30 0
3. /etc/inittab, have a login at ttyB0
4. Added the `ttyB0' device to /etc/securetty, if you want login as
`root' on the
        console
5. kernel line parameter with `console=ttyB0'

(ad 1): In the future (if somebody can help me) we want to have a config
item in
the kernel configuration for the PDC console. 


I attch two files:
        - linux-cvs.diff-20011119.log
                Diffs displayed by `cvs -z9 diff -u .'
        - pdc_drv.c
                The new file (simple displayed as `?
drivers/char/pdc_drv.c')
                The file has to be checked in at `drivers/char'

I hope you can use it and will add it to the mainstream kernel ...

Bye
Christoph P.






-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at
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? drivers/char/pdc_drv.c
cvs server: Diffing .
cvs server: Diffing Documentation
cvs server: Diffing Documentation/DocBook
cvs server: Diffing Documentation/arm
cvs server: Diffing Documentation/arm/SA1100
cvs server: Diffing Documentation/arm/empeg
cvs server: Diffing Documentation/arm/nwfpe
cvs server: Diffing Documentation/cdrom
cvs server: Diffing Documentation/cris
cvs server: Diffing Documentation/fb
cvs server: Diffing Documentation/filesystems
cvs server: Diffing Documentation/filesystems/devfs
cvs server: Diffing Documentation/i2c
cvs server: Diffing Documentation/i386
cvs server: Diffing Documentation/ia64
cvs server: Diffing Documentation/isdn
cvs server: Diffing Documentation/kbuild
cvs server: Diffing Documentation/m68k
cvs server: Diffing Documentation/mips
cvs server: Diffing Documentation/networking
cvs server: Diffing Documentation/parisc
cvs server: Diffing Documentation/power
cvs server: Diffing Documentation/powerpc
cvs server: Diffing Documentation/s390
cvs server: Diffing Documentation/sound
cvs server: Diffing Documentation/sparc
cvs server: Diffing Documentation/sysctl
cvs server: Diffing Documentation/telephony
cvs server: Diffing Documentation/usb
cvs server: Diffing Documentation/video4linux
cvs server: Diffing Documentation/video4linux/bttv
cvs server: Diffing Documentation/vm
cvs server: Diffing arch
cvs server: Diffing arch/alpha
cvs server: Diffing arch/alpha/boot
cvs server: Diffing arch/alpha/boot/tools
cvs server: Diffing arch/alpha/kernel
cvs server: Diffing arch/alpha/lib
cvs server: Diffing arch/alpha/math-emu
cvs server: Diffing arch/alpha/mm
cvs server: Diffing arch/arm
cvs server: Diffing arch/arm/boot
cvs server: Diffing arch/arm/boot/bootp
cvs server: Diffing arch/arm/boot/compressed
cvs server: Diffing arch/arm/def-configs
cvs server: Diffing arch/arm/kernel
cvs server: Diffing arch/arm/lib
cvs server: Diffing arch/arm/mach-anakin
cvs server: Diffing arch/arm/mach-ebsa110
cvs server: Diffing arch/arm/mach-footbridge
cvs server: Diffing arch/arm/mach-integrator
cvs server: Diffing arch/arm/mach-sa1100
cvs server: Diffing arch/arm/mach-shark
cvs server: Diffing arch/arm/mm
cvs server: Diffing arch/arm/nwfpe
cvs server: Diffing arch/arm/tools
cvs server: Diffing arch/cris
cvs server: Diffing arch/cris/boot
cvs server: Diffing arch/cris/boot/compressed
cvs server: Diffing arch/cris/boot/rescue
cvs server: Diffing arch/cris/boot/tools
cvs server: Diffing arch/cris/drivers
cvs server: Diffing arch/cris/drivers/examples
cvs server: Diffing arch/cris/drivers/lpslave
cvs server: Diffing arch/cris/kernel
cvs server: Diffing arch/cris/lib
cvs server: Diffing arch/cris/mm
cvs server: Diffing arch/i386
cvs server: Diffing arch/i386/boot
cvs server: Diffing arch/i386/boot/compressed
cvs server: Diffing arch/i386/boot/tools
cvs server: Diffing arch/i386/kernel
cvs server: Diffing arch/i386/lib
cvs server: Diffing arch/i386/math-emu
cvs server: Diffing arch/i386/mm
cvs server: Diffing arch/ia64
cvs server: Diffing arch/ia64/boot
cvs server: Diffing arch/ia64/dig
cvs server: Diffing arch/ia64/hp
cvs server: Diffing arch/ia64/ia32
cvs server: Diffing arch/ia64/kdb
cvs server: Diffing arch/ia64/kernel
cvs server: Diffing arch/ia64/lib
cvs server: Diffing arch/ia64/mm
cvs server: Diffing arch/ia64/sn
cvs server: Diffing arch/ia64/sn/fprom
cvs server: Diffing arch/ia64/sn/io
cvs server: Diffing arch/ia64/sn/sn1
cvs server: Diffing arch/ia64/sn/tools
cvs server: Diffing arch/ia64/tools
cvs server: Diffing arch/m68k
cvs server: Diffing arch/m68k/amiga
cvs server: Diffing arch/m68k/apollo
cvs server: Diffing arch/m68k/atari
cvs server: Diffing arch/m68k/bvme6000
cvs server: Diffing arch/m68k/fpsp040
cvs server: Diffing arch/m68k/hp300
cvs server: Diffing arch/m68k/ifpsp060
cvs server: Diffing arch/m68k/ifpsp060/src
cvs server: Diffing arch/m68k/kernel
cvs server: Diffing arch/m68k/lib
cvs server: Diffing arch/m68k/mac
cvs server: Diffing arch/m68k/math-emu
cvs server: Diffing arch/m68k/mm
cvs server: Diffing arch/m68k/mvme147
cvs server: Diffing arch/m68k/mvme16x
cvs server: Diffing arch/m68k/q40
cvs server: Diffing arch/m68k/sun3
cvs server: Diffing arch/m68k/sun3/prom
cvs server: Diffing arch/m68k/sun3x
cvs server: Diffing arch/m68k/tools
cvs server: Diffing arch/m68k/tools/amiga
cvs server: Diffing arch/mips
cvs server: Diffing arch/mips/algor
cvs server: Diffing arch/mips/arc
cvs server: Diffing arch/mips/baget
cvs server: Diffing arch/mips/baget/prom
cvs server: Diffing arch/mips/boot
cvs server: Diffing arch/mips/cobalt
cvs server: Diffing arch/mips/ddb5074
cvs server: Diffing arch/mips/ddb5476
cvs server: Diffing arch/mips/dec
cvs server: Diffing arch/mips/dec/boot
cvs server: Diffing arch/mips/dec/prom
cvs server: Diffing arch/mips/ite-boards
cvs server: Diffing arch/mips/ite-boards/generic
cvs server: Diffing arch/mips/ite-boards/qed-4n-s01b
cvs server: Diffing arch/mips/jazz
cvs server: Diffing arch/mips/kernel
cvs server: Diffing arch/mips/lib
cvs server: Diffing arch/mips/math-emu
cvs server: Diffing arch/mips/mips-boards
cvs server: Diffing arch/mips/mips-boards/atlas
cvs server: Diffing arch/mips/mips-boards/generic
cvs server: Diffing arch/mips/mips-boards/malta
cvs server: Diffing arch/mips/mm
cvs server: Diffing arch/mips/orion
cvs server: Diffing arch/mips/sgi
cvs server: Diffing arch/mips/sgi/kernel
cvs server: Diffing arch/mips/sni
cvs server: Diffing arch/mips/tools
cvs server: Diffing arch/mips64
cvs server: Diffing arch/mips64/arc
cvs server: Diffing arch/mips64/boot
cvs server: Diffing arch/mips64/kernel
cvs server: Diffing arch/mips64/lib
cvs server: Diffing arch/mips64/math-emu
cvs server: Diffing arch/mips64/mm
cvs server: Diffing arch/mips64/sgi-ip22
cvs server: Diffing arch/mips64/sgi-ip27
cvs server: Diffing arch/mips64/tools
cvs server: Diffing arch/parisc
cvs server: Diffing arch/parisc/boot
cvs server: Diffing arch/parisc/boot/boot_code
cvs server: Diffing arch/parisc/debian-configs
cvs server: Diffing arch/parisc/hpux
cvs server: Diffing arch/parisc/kernel
Index: arch/parisc/kernel/firmware.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/firmware.c,v
retrieving revision 1.36
diff -u -r1.36 firmware.c
--- arch/parisc/kernel/firmware.c	2001/11/13 23:25:45	1.36
+++ arch/parisc/kernel/firmware.c	2001/11/19 22:17:48
@@ -136,6 +136,15 @@
 }
 
 /**
+ * pdc_chassis_disp, used for E-series (for example E55)
+ */
+
+int pdc_chassis_disp(unsigned long disp)
+{
+        return mem_pdc_call(PDC_CHASSIS, PDC_CHASSIS_DISP, disp);
+}
+
+/**
  * pdc_chassis_info - Return chassis information.
  * @result: The return buffer.
  * @chassis_info: The memory buffer address.
@@ -681,6 +690,59 @@
                     PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers),
                     __pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0);
         spin_unlock_irqrestore(&pdc_lock, flags);
+}
+
+/* write character directly without convertings */
+
+void pdc_iodc_outc(unsigned char c)
+{
+	/* fill buffer with one caracter and print it */
+        static int __attribute__((aligned(8)))   iodc_retbuf[32];
+        static char __attribute__((aligned(64))) iodc_dbuf[4096];
+	unsigned int n;
+
+	iodc_dbuf[0] = c;
+	n = 1;
+	{
+		real32_call(PAGE0->mem_cons.iodc_io,
+			(unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
+			PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers),
+			__pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0);
+	}
+}
+
+/* read NON-BLOCKING a character from the PDC console,
+   returns -1, if no key is present */
+
+int pdc_iodc_getc(void)
+{
+        static int __attribute__((aligned(8)))   iodc_retbuf[32];
+        static char __attribute__((aligned(64))) iodc_dbuf[4096];
+	int ch;
+	int status;
+
+	/* Bail if no console input device. */
+	if (!PAGE0->mem_kbd.iodc_io)
+		return 0;
+	
+	/* wait for a keyboard (rs232)-input */
+	do {
+		unsigned long flags;
+
+		save_flags(flags);
+		cli();
+		status = real32_call(PAGE0->mem_kbd.iodc_io,
+			(unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN,
+			PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers),
+			__pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
+		restore_flags(flags);
+		ch = *iodc_dbuf;	/* save the character directly to ch */
+	} while (0) ;                   /* once !! */
+
+	if (*iodc_retbuf == 0)	        /* no key */
+	    ch = -1;
+	
+	return ch;
 }
 
 int pdc_sti_call(unsigned long func, unsigned long flags,
Index: arch/parisc/kernel/led.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/led.c,v
retrieving revision 1.24
diff -u -r1.24 led.c
--- arch/parisc/kernel/led.c	2001/10/22 15:45:36	1.24
+++ arch/parisc/kernel/led.c	2001/11/19 22:17:49
@@ -51,6 +51,30 @@
 static int led_lanrxtx = 1;
 static char lcd_text[32] = {0};
 
+/*****
+ * stuff for E55 and similar server with RUN/ATTENTION LED
+ */
+
+#define LED_CHASSIS_OFF            0
+#define LED_CHASSIS_FAULT          1
+#define LED_CHASSIS_TEST           2
+#define LED_CHASSIS_INIT           3
+#define LED_CHASSIS_SHUTDOWN       4
+#define LED_CHASSIS_WARNING        5
+#define LED_CHASSIS_RUN            6
+#define LED_CHASSIS_ALL_ON         7
+
+#define LED_CHASSIS_BYTE(v) ((unsigned long)((v) << 1))
+#define LED_CHASSIS_DISP_DATA(v) ((unsigned long)(LED_CHASSIS_BYTE(v) << 16))
+extern int pdc_chassis_disp (unsigned long);
+extern int pdc_model_sysmodel (char *);
+static int use_chassis_call = 0;
+static int chassis_run_mode = 0;
+
+void led_chassis_run (void);
+void led_chassis_attention (void);
+void led_chassis_init (void);
+
 #if 0
 #define DPRINTK(x)	printk x
 #else
@@ -450,13 +474,24 @@
 
 	if (led_heartbeat)
 	{
+		/* for server with RUN led, switch it on, heartbeat is active,
+		   led_chassis_run() checks itself, if a machine of this
+		   type is used */
+		led_chassis_run ();
+		
 		/* flash heartbeat-LED like a real heart (2 x short then a long delay) */
 		if (count_HZ<HEARTBEAT_LEN || 
 		    (count_HZ>=HEARTBEAT_2ND_RANGE_START && count_HZ<HEARTBEAT_2ND_RANGE_END)) 
 		    currentleds |= LED_HEARTBEAT;
 		else
 		    currentleds &= ~LED_HEARTBEAT;
+	} else {
+		/* if no heartbeat, also let light ATTENTION on some
+		   machine. led_chassis_attention() will check itself,
+		   if a machine of this type is used */
+		led_chassis_attention();
 	}
+	
 
 	/* gather network and diskio statistics and flash LEDs respectively */
 
@@ -541,7 +576,10 @@
 	else
 		if (led_func_ptr)
 			led_func_ptr(0xff); /* turn all LEDs ON */
-	
+	/* call led_chassis_attention(), routine cheks itself, if
+	   this display type is valid */
+	led_chassis_attention();
+
 	unregister_reboot_notifier(&led_notifier);
 	return NOTIFY_OK;
 }
@@ -673,6 +711,54 @@
 	return lcd_info.lcd_width;
 }
 
+
+/*
+   ** HP E55 (and similar) stuff
+   **
+   ** These series has only static LED
+   **
+   ** At the moment only two will be supported
+   **    RUN
+   **    ATTENTION
+   **
+   ** These to LEDs are used disjunct
+*/
+
+void led_chassis_run (void)
+{
+	if (use_chassis_call && !chassis_run_mode) {
+		pdc_chassis_disp (LED_CHASSIS_DISP_DATA(LED_CHASSIS_RUN));
+		chassis_run_mode = 1;
+	}
+}
+
+void led_chassis_attention (void)
+{
+	if (use_chassis_call && chassis_run_mode) {
+		pdc_chassis_disp (LED_CHASSIS_DISP_DATA(LED_CHASSIS_INIT));
+		chassis_run_mode = 0;
+	}
+}
+
+void led_chassis_init (void)
+{
+#define MODBUF_LEN 32
+	char buf [MODBUF_LEN];  /* small enough to lay on stack */
+	
+	if (pdc_model_sysmodel (buf) < 0) {
+		printk (KERN_NOTICE "%s: error reading sys model\n", 
+			__FUNCTION__);
+		return;
+	}
+	
+	if (strncmp (buf, "9000/856", MODBUF_LEN) == 0)
+		use_chassis_call = 1;
+
+	/* XXX CP: Add other models ! */
+
+	chassis_run_mode = 0;
+}
+
 /*
    ** led_init()
    ** 
@@ -703,6 +789,8 @@
 	}
 
 	/* initialize the struct, so that we can check for valid return values */
+	led_chassis_init();
+
 	lcd_info.model = DISPLAY_MODEL_NONE;
 	chassis_info.actcnt = chassis_info.maxcnt = 0;
 
Index: arch/parisc/kernel/pdc_cons.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/pdc_cons.c,v
retrieving revision 1.29
diff -u -r1.29 pdc_cons.c
--- arch/parisc/kernel/pdc_cons.c	2001/11/13 23:35:01	1.29
+++ arch/parisc/kernel/pdc_cons.c	2001/11/19 22:17:49
@@ -12,9 +12,19 @@
 
 /* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems. 
  * On production kernels EARLY_BOOTUP_DEBUG should be undefined. */
-#undef EARLY_BOOTUP_DEBUG
 
+/* #undef EARLY_BOOTUP_DEBUG */
 
+/* CP 
+   activate PDC console in any case for testing the ttyB0
+
+   TODO: This must be activated if a "CONFIG_PDC_CONSOLE" is
+   configured (necessary), otherwise the EARLY_BOOTUP_DEBUG should
+   be undefined !
+*/
+#define EARLY_BOOTUP_DEBUG
+
+
 #include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/console.h>
@@ -35,16 +45,32 @@
 		pdc_iodc_putc(*s++);
 }
 
+void pdc_outc(unsigned char c)
+{
+	pdc_iodc_outc(c);
+}
+
+
+int pdc_console_poll_key(struct console *co)
+{
+	return pdc_iodc_getc();
+}
+
 static int pdc_console_setup(struct console *co, char *options)
 {
 	return 0;
 }
 
+static kdev_t pdc_console_device (struct console *c)
+{
+        return MKDEV(PDCCONS_MAJOR, 0);
+}
+
 static struct console pdc_cons = {
 	name:		"ttyB",
 	write:		pdc_console_write,
 	read:		NULL,
-	device:		NULL, 
+	device:		pdc_console_device, 
 	wait_key:	NULL,
 	unblank:	NULL,
 	setup:		pdc_console_setup,
cvs server: Diffing arch/parisc/lib
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cvs server: Diffing drivers/acpi/ospm/battery
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cvs server: Diffing drivers/acpi/ospm/button
cvs server: Diffing drivers/acpi/ospm/ec
cvs server: Diffing drivers/acpi/ospm/include
cvs server: Diffing drivers/acpi/ospm/processor
cvs server: Diffing drivers/acpi/ospm/system
cvs server: Diffing drivers/acpi/ospm/thermal
cvs server: Diffing drivers/acpi/parser
cvs server: Diffing drivers/acpi/resources
cvs server: Diffing drivers/acpi/tables
cvs server: Diffing drivers/acpi/utilities
cvs server: Diffing drivers/ap1000
cvs server: Diffing drivers/atm
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cvs server: Diffing drivers/block/paride
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cvs server: Diffing drivers/char
Index: drivers/char/Makefile
===================================================================
RCS file: /var/cvs/linux/drivers/char/Makefile,v
retrieving revision 1.23
diff -u -r1.23 Makefile
--- drivers/char/Makefile	2001/11/09 23:35:36	1.23
+++ drivers/char/Makefile	2001/11/19 22:17:51
@@ -64,6 +64,10 @@
 endif
 
 ifeq ($(ARCH),parisc)
+   # XXX CP: Added for all PA-RISC architecture, 
+   #         should be made configurable ...
+   obj-y += pdc_drv.o
+
    ifdef CONFIG_GSC_PS2
      KEYBD   = hp_psaux.o hp_keyb.o
    else
cvs server: Diffing drivers/char/agp
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cvs server: Diffing drivers/char/joystick
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cvs server: Diffing include/asm-ia64/sn/sn1
cvs server: Diffing include/asm-ia64/sn/xtalk
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cvs server: Diffing include/asm-mips
cvs server: Diffing include/asm-mips/arc
cvs server: Diffing include/asm-mips/baget
cvs server: Diffing include/asm-mips/dec
cvs server: Diffing include/asm-mips/it8172
cvs server: Diffing include/asm-mips/pmc
cvs server: Diffing include/asm-mips/sgi
cvs server: Diffing include/asm-mips64
cvs server: Diffing include/asm-mips64/arc
cvs server: Diffing include/asm-mips64/gcc
cvs server: Diffing include/asm-mips64/pci
cvs server: Diffing include/asm-mips64/sgi
cvs server: Diffing include/asm-mips64/sn
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Index: include/asm-parisc/pdc.h
===================================================================
RCS file: /var/cvs/linux/include/asm-parisc/pdc.h,v
retrieving revision 1.37
diff -u -r1.37 pdc.h
--- include/asm-parisc/pdc.h	2001/11/13 22:26:51	1.37
+++ include/asm-parisc/pdc.h	2001/11/19 22:18:13
@@ -816,7 +816,9 @@
 int pdc_do_reset(void);
 int pdc_soft_power_info(unsigned long *power_reg);
 void pdc_soft_power_shutdown(void);
+int pdc_iodc_getc(void);
 void pdc_iodc_putc(unsigned char c);
+void pdc_iodc_outc(unsigned char c);
 
 int pdc_sti_call(unsigned long func, unsigned long flags,
                  unsigned long inptr, unsigned long outputr,
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Index: include/linux/major.h
===================================================================
RCS file: /var/cvs/linux/include/linux/major.h,v
retrieving revision 1.10
diff -u -r1.10 major.h
--- include/linux/major.h	2001/11/09 23:37:14	1.10
+++ include/linux/major.h	2001/11/19 22:18:34
@@ -63,6 +63,7 @@
 #define ACSI_MAJOR	28
 #define AZTECH_CDROM_MAJOR 29
 #define GRAPHDEV_MAJOR	29	/* SparcLinux & Linux/68k /dev/fb */
+#define PDCCONS_MAJOR   30      /* CP: PDC console */
 #define SHMIQ_MAJOR	85	/* Linux/mips, SGI /dev/shmiq */
 #define CM206_CDROM_MAJOR 32
 #define IDE2_MAJOR	33
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--------------F2284F98E058B5E182FDCE75
Content-Type: text/plain; charset=us-ascii;
 name="pdc_drv.c"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="pdc_drv.c"

/*
 *  linux/drivers/char/pdc_drv.c
 *
 *  2001, Christoph Plattner
 * 
 *  Driver template was linux's serial.c
 *
 */

static char *pdc_drv_version = "0.3";
static char *pdc_drv_revdate = "2001-11-17";
#define AUTHOR "christoph.plattner@gmx.at"
#include <linux/config.h>
#include <linux/version.h>

#undef PDC_DRV_DEBUG

#undef SERIAL_PARANOIA_CHECK
#define CONFIG_SERIAL_NOPAUSE_IO
#define SERIAL_DO_RESTART

#define PDC_POLL_DELAY (30 * HZ / 1000)

/*
 * End of serial driver configuration section.
 */

#include <linux/module.h>

#include <linux/types.h>
#ifdef LOCAL_HEADERS
#include "serial_local.h"
#else
#include <linux/serial.h>
#include <linux/serialP.h>
#include <linux/serial_reg.h>
#include <asm/serial.h>
#define LOCAL_VERSTRING ""
#endif

#include <linux/errno.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/major.h>
#include <linux/string.h>
#include <linux/fcntl.h>
#include <linux/ptrace.h>
#include <linux/ioport.h>
#include <linux/mm.h>
#include <linux/slab.h>
#if (LINUX_VERSION_CODE >= 131343)
#include <linux/init.h>
#endif
#if (LINUX_VERSION_CODE >= 131336)
#include <asm/uaccess.h>
#endif
#include <linux/delay.h>

/*
 * All of the compatibilty code so we can compile serial.c against
 * older kernels is hidden in serial_compat.h
 */
#if defined(LOCAL_HEADERS) || (LINUX_VERSION_CODE < 0x020317) /* 2.3.23 */
#include "serial_compat.h"
#endif

#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/bitops.h>

#ifdef CONFIG_GSC
#include <asm/gsc.h>
#endif

extern int pdc_console_poll_key(void *);
extern void pdc_outc(unsigned char);

#ifdef SERIAL_INLINE
#define _INLINE_ inline
#else
#define _INLINE_
#endif

static char *pdc_drv_name = "PDC driver";

static struct tty_driver pdc_drv_driver;
static int pdc_drv_refcount = 0;
static struct async_struct * pdc_drv_info;

static struct timer_list pdc_drv_timer;

/* serial subtype definitions */
#ifndef SERIAL_TYPE_NORMAL
#define SERIAL_TYPE_NORMAL	1
#define SERIAL_TYPE_CALLOUT	2
#endif

#define NR_PORTS 1
#define PDC_DUMMY_BUF 2048

static struct tty_struct *pdc_drv_table[NR_PORTS];
static struct termios *pdc_drv_termios[NR_PORTS];
static struct termios *pdc_drv_termios_locked[NR_PORTS];

/*
 * tmp_buf is used as a temporary buffer by serial_write.  We need to
 * lock it in case the copy_from_user blocks while swapping in a page,
 * and some other program tries to do a serial write at the same time.
 * Since the lock will only come under contention when the system is
 * swapping and available memory is low, it makes sense to share one
 * buffer across all the serial ports, since it significantly saves
 * memory if large numbers of serial ports are open.
 */
static unsigned char *tmp_buf;
#ifdef DECLARE_MUTEX
static DECLARE_MUTEX(tmp_buf_sem);
#else
static struct semaphore tmp_buf_sem = MUTEX;
#endif


/*
 * ------------------------------------------------------------
 * pdc_stop() and pdc_start()
 *
 * This routines are called before setting or resetting tty->stopped.
 * They enable or disable transmitter interrupts, as necessary.
 * ------------------------------------------------------------
 */
static void pdc_stop(struct tty_struct *tty)
{
}

static void pdc_start(struct tty_struct *tty)
{
}

/*
 * ----------------------------------------------------------------------
 *
 * Here starts the interrupt handling routines.  All of the following
 * subroutines are declared as inline and are folded into
 * rs_interrupt().  They were separated out for readability's sake.
 *
 * Note: rs_interrupt() is a "fast" interrupt, which means that it
 * runs with interrupts turned off.  People who may want to modify
 * rs_interrupt() should try to keep the interrupt handler as fast as
 * possible.  After you are done making modifications, it is not a bad
 * idea to do:
 * 
 * gcc -S -DKERNEL -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer serial.c
 *
 * and look at the resulting assemble code in serial.s.
 *
 * 				- Ted Ts'o (tytso@mit.edu), 7-Mar-93
 * -----------------------------------------------------------------------
 */

static _INLINE_ void receive_chars(struct async_struct *info,
				 int *status, struct pt_regs * regs)
{
	struct tty_struct *tty = info->tty;
	unsigned char ch;
	int __ch;

	while (1) {
		__ch = pdc_console_poll_key (NULL);

		if (__ch == -1)   /* no character available */
		    break;

		ch = (unsigned char)((unsigned)__ch & 0x000000ffu);
		
		if (tty->flip.count >= TTY_FLIPBUF_SIZE)
			continue;

		*tty->flip.char_buf_ptr = ch;
		*tty->flip.flag_buf_ptr = 0;

		tty->flip.flag_buf_ptr++;
		tty->flip.char_buf_ptr++;
		tty->flip.count++;
	}

#if (LINUX_VERSION_CODE > 131394) /* 2.1.66 */
	tty_flip_buffer_push(tty);
#else
	queue_task_irq_off(&tty->flip.tqueue, &tq_timer);
#endif	
}

static void pdc_drv_poll (unsigned long dummy)
{
    struct async_struct * info;
    int status = 0;

    info = pdc_drv_info;
    
    if (!info || !info->tty || (pdc_drv_refcount == 0)) 
    {
	/* do nothing */
    }
    else
    {
	receive_chars(info, &status, NULL);
	info->last_active = jiffies;
    }

    mod_timer (& pdc_drv_timer, jiffies + PDC_POLL_DELAY);
}


static void pdc_put_char(struct tty_struct *tty, unsigned char ch)
{
#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: return\n");
#endif	
	pdc_outc (ch);
}

static void pdc_flush_chars(struct tty_struct *tty)
{
	/* PCD console always flushed all characters */

#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: return\n");
#endif	

	/* nothing to do */
}

static int pdc_write(struct tty_struct * tty, int from_user,
		    const unsigned char *buf, int count)
{
	char pdc_tmp_buf [PDC_DUMMY_BUF];
	char * pdc_tmp_buf_ptr;
	int len;
	int ret = 0;
				
#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: entry\n");
#endif	
	while (count) {
		if (count < PDC_DUMMY_BUF)
			len = count;
		else 
			len = PDC_DUMMY_BUF;
		
		if (from_user) {
			copy_from_user (pdc_tmp_buf, buf, len);
			pdc_tmp_buf_ptr = pdc_tmp_buf;
		}
		else
			pdc_tmp_buf_ptr = (char *) buf;
		
		while (len) {
			pdc_outc (*pdc_tmp_buf_ptr);
			buf++;
			pdc_tmp_buf_ptr++;
			ret++;
			count--;
			len--;
		}
	}
#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: return\n");
#endif	
	return ret;
}

static int pdc_write_room(struct tty_struct *tty)
{
#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: entry\n");
#endif	
	return PDC_DUMMY_BUF;
}

static int pdc_chars_in_buffer(struct tty_struct *tty)
{
#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: entry\n");
#endif	
	return 0; /* no characters in buffer, always flushed ! */
}

static void pdc_flush_buffer(struct tty_struct *tty)
{
#ifdef PDC_DRV_DEBUG
	printk (KERN_NOTICE "%s: %s: return\n");
#endif	
}

/*
 * This function is used to send a high-priority XON/XOFF character to
 * the device
 */
static void pdc_send_xchar(struct tty_struct *tty, char ch)
{
}

/*
 * ------------------------------------------------------------
 * pdc_throttle()
 * 
 * This routine is called by the upper-layer tty layer to signal that
 * incoming characters should be throttled.
 * ------------------------------------------------------------
 */
static void pdc_throttle(struct tty_struct * tty)
{
}

static void pdc_unthrottle(struct tty_struct * tty)
{
}

/*
 * ------------------------------------------------------------
 * pdc_ioctl() and friends
 * ------------------------------------------------------------
 */

static void pdc_break(struct tty_struct *tty, int break_state)
{
}


static int pdc_ioctl(struct tty_struct *tty, struct file * file,
		    unsigned int cmd, unsigned long arg)
{
	struct async_struct *info = (struct async_struct *)tty->driver_data;
	
	if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
	    (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) &&
	    (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) {
		if (tty->flags & (1 << TTY_IO_ERROR))
		    return -EIO;
	}
	
	switch (cmd) {
		case TIOCMGET:
			return 0;
		case TIOCMBIS:
		case TIOCMBIC:
		case TIOCMSET:
			return 0;
		case TIOCGSERIAL:
			return 0;
		case TIOCSSERIAL:
			return 0;
		case TIOCSERCONFIG:
			return 0;

		case TIOCSERGETLSR: /* Get line status register */
			return 0;

		case TIOCSERGSTRUCT:
			if (copy_to_user((struct async_struct *) arg,
					 info, sizeof(struct async_struct)))
				return -EFAULT;
			return 0;
				
		case TIOCMIWAIT:
			return 0;

		case TIOCGICOUNT:
			return 0;
		case TIOCSERGWILD:
		case TIOCSERSWILD:
			/* "setserial -W" is called in Debian boot */
			printk ("TIOCSER?WILD ioctl obsolete, ignored.\n");
			return 0;

		default:
			return -ENOIOCTLCMD;
		}
	return 0;
}

static void pdc_set_termios(struct tty_struct *tty, struct termios *old_termios)
{
	
#if 0	/* XXX CP, has to be checked, if there is stuff to do */
	struct async_struct *info = (struct async_struct *)tty->driver_data;
	unsigned long flags;
	unsigned int cflag = tty->termios->c_cflag;

	if (   (cflag == old_termios->c_cflag)
	    && (   RELEVANT_IFLAG(tty->termios->c_iflag) 
		== RELEVANT_IFLAG(old_termios->c_iflag)))
	  return;
#if 0
	change_speed(info, old_termios);
#endif
	/* Handle turning off CRTSCTS */
	if ((old_termios->c_cflag & CRTSCTS) &&
	    !(tty->termios->c_cflag & CRTSCTS)) {
		tty->hw_stopped = 0;
		pdc_start(tty);
	}
#endif
}

/*
 * ------------------------------------------------------------
 * pdc_close()
 * 
 * This routine is called when the serial port gets closed.  First, we
 * wait for the last remaining data to be sent.  Then, we unlink its
 * async structure from the interrupt chain if necessary, and we free
 * that IRQ if nothing is left in the chain.
 * ------------------------------------------------------------
 */
static void pdc_close(struct tty_struct *tty, struct file * filp)
{
	struct async_struct * info = (struct async_struct *)tty->driver_data;

#ifdef PDC_DEBUG_OPEN
	printk("pdc_close ttyB%d, count = %d\n", info->line, state->count);
#endif
	pdc_drv_refcount--;
	if (pdc_drv_refcount > 0)
	    return;
	
	info->flags |= ASYNC_CLOSING;

	/*
	 * Save the termios structure, since this port may have
	 * separate termios for callout and dialin.
	 */
	if (info->flags & ASYNC_NORMAL_ACTIVE)
		info->state->normal_termios = *tty->termios;
	if (info->flags & ASYNC_CALLOUT_ACTIVE)
		info->state->callout_termios = *tty->termios;

	/*
	 * At this point we stop accepting input.  To do this, we
	 * disable the receive line status interrupts, and tell the
	 * interrupt driver to stop checking the data ready bit in the
	 * line status register.
	 */

	/* XXX CP: make mask for receive !!! */

	if (tty->driver.flush_buffer)
		tty->driver.flush_buffer(tty);
	if (tty->ldisc.flush_buffer)
		tty->ldisc.flush_buffer(tty);
	tty->closing = 0;
	info->event = 0;
	info->tty = 0;
	pdc_drv_info = NULL;
	if (info->blocked_open) {
		if (info->close_delay) {
			set_current_state(TASK_INTERRUPTIBLE);
			schedule_timeout(info->close_delay);
		}
		wake_up_interruptible(&info->open_wait);
	}
	info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CALLOUT_ACTIVE|
			 ASYNC_CLOSING);
	wake_up_interruptible(&info->close_wait);
	MOD_DEC_USE_COUNT;
}

/*
 * pdc_wait_until_sent() --- wait until the transmitter is empty
 */
static void pdc_wait_until_sent(struct tty_struct *tty, int timeout)
{
	/* we always send immideate */
}

/*
 * pdc_hangup() --- called by tty_hangup() when a hangup is signaled.
 */
static void pdc_hangup(struct tty_struct *tty)
{
}

/*
 * ------------------------------------------------------------
 * pdc_open() and friends
 * ------------------------------------------------------------
 */

static int get_async_struct(int line, struct async_struct **ret_info)
{
	struct async_struct *info;
	
	info = kmalloc(sizeof(struct async_struct), GFP_KERNEL);
	if (!info) {
		return -ENOMEM;
	}
	memset(info, 0, sizeof(struct async_struct));
	init_waitqueue_head(&info->open_wait);
	init_waitqueue_head(&info->close_wait);
	init_waitqueue_head(&info->delta_msr_wait);
	info->magic = SERIAL_MAGIC;
	info->port = 0;
	info->flags = 0;
	info->io_type = 0;
	info->iomem_base = 0;
	info->iomem_reg_shift = 0;
	info->xmit_fifo_size = PDC_DUMMY_BUF;
	info->line = line;
	info->tqueue.routine = NULL;
	info->tqueue.data = info;
	info->state = NULL;
	*ret_info = info;
	return 0;
}

/*
 * This routine is called whenever a serial port is opened.  It
 * enables interrupts for a serial port, linking in its async structure into
 * the IRQ chain.   It also performs the serial-specific
 * initialization for the tty structure.
 */
static int pdc_open(struct tty_struct *tty, struct file * filp)
{
	struct async_struct	*info;
	int 			retval, line;
	unsigned long		page;
	
	MOD_INC_USE_COUNT;
	line = MINOR(tty->device) - tty->driver.minor_start;
	if ((line < 0) || (line >= NR_PORTS)) {
		MOD_DEC_USE_COUNT;
		return -ENODEV;
	}
	retval = get_async_struct(line, &info);
	if (retval) {
		MOD_DEC_USE_COUNT;
		return retval;
	}
	tty->driver_data = info;
	info->tty = tty;
	pdc_drv_info = info;
	
#ifdef PDC_DEBUG_OPEN
	printk("pdc_open %s%d, count = %d\n", tty->driver.name, info->line,
	       info->state->count);
#endif
#if (LINUX_VERSION_CODE > 0x20100)
	info->tty->low_latency = 0;
#endif

	if (!tmp_buf) {
		page = get_zeroed_page(GFP_KERNEL);
		if (!page) {
			MOD_DEC_USE_COUNT;
			return -ENOMEM;
		}
		if (tmp_buf)
			free_page(page);
		else
			tmp_buf = (unsigned char *) page;
	}

	info->session = current->session;
	info->pgrp = current->pgrp;

#ifdef PDC_DEBUG_OPEN
	printk("pdc_open ttyB%d successful...", info->line);
#endif
	pdc_drv_refcount++;
	return 0;
}

/*
 * ---------------------------------------------------------------------
 * pdc_init() and friends
 *
 * pdc_init() is called at boot-time to initialize the pdc driver.
 * ---------------------------------------------------------------------
 */

static _INLINE_ void show_pdc_drv_version(void)
{
 	printk(KERN_INFO "%s version %s%s (%s), %s\n", pdc_drv_name,
	       pdc_drv_version, LOCAL_VERSTRING, pdc_drv_revdate,
	       AUTHOR);
}

/*
 * The serial driver boot-time initialization code!
 */
static int __init pdc_drv_init(void)
{
	init_timer(&pdc_drv_timer);
	pdc_drv_timer.function = pdc_drv_poll;
	mod_timer(&pdc_drv_timer, jiffies + PDC_POLL_DELAY);

	show_pdc_drv_version();

	/* Initialize the tty_driver structure */
	
	memset(&pdc_drv_driver, 0, sizeof(struct tty_driver));
	pdc_drv_driver.magic = TTY_DRIVER_MAGIC;
#if (LINUX_VERSION_CODE > 0x20100)
	pdc_drv_driver.driver_name = "pdc_drv";
#endif
#if (LINUX_VERSION_CODE > 0x2032D && defined(CONFIG_DEVFS_FS))
	pdc_drv_driver.name = "ttb/%d";
#else
	pdc_drv_driver.name = "ttyB";
#endif
	pdc_drv_driver.major = PDCCONS_MAJOR;
	pdc_drv_driver.minor_start = 0;
	pdc_drv_driver.num = NR_PORTS;
	pdc_drv_driver.type = TTY_DRIVER_TYPE_SERIAL;
	pdc_drv_driver.subtype = SERIAL_TYPE_NORMAL;
	pdc_drv_driver.init_termios = tty_std_termios;
	pdc_drv_driver.init_termios.c_cflag =
		B9600 | CS8 | CREAD | HUPCL | CLOCAL;
	pdc_drv_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
	pdc_drv_driver.refcount = &pdc_drv_refcount;
	pdc_drv_driver.table = pdc_drv_table;
	pdc_drv_driver.termios = pdc_drv_termios;
	pdc_drv_driver.termios_locked = pdc_drv_termios_locked;

	pdc_drv_driver.open = pdc_open;
	pdc_drv_driver.close = pdc_close;
	pdc_drv_driver.write = pdc_write;
	pdc_drv_driver.put_char = pdc_put_char;
	pdc_drv_driver.flush_chars = pdc_flush_chars;
	pdc_drv_driver.write_room = pdc_write_room;
	pdc_drv_driver.chars_in_buffer = pdc_chars_in_buffer;
	pdc_drv_driver.flush_buffer = pdc_flush_buffer;
	pdc_drv_driver.ioctl = pdc_ioctl;
	pdc_drv_driver.throttle = pdc_throttle;
	pdc_drv_driver.unthrottle = pdc_unthrottle;
	pdc_drv_driver.set_termios = pdc_set_termios;
	pdc_drv_driver.stop = pdc_stop;
	pdc_drv_driver.start = pdc_start;
	pdc_drv_driver.hangup = pdc_hangup;
#if (LINUX_VERSION_CODE >= 131394) /* Linux 2.1.66 */
	pdc_drv_driver.break_ctl = pdc_break;
#endif
#if (LINUX_VERSION_CODE >= 131343)
	pdc_drv_driver.send_xchar = pdc_send_xchar;
	pdc_drv_driver.wait_until_sent = pdc_wait_until_sent;
	pdc_drv_driver.read_proc = NULL;
#endif
	
	if (tty_register_driver(&pdc_drv_driver))
		panic("Couldn't register pdc_drv driver\n");
	
	return 0;
}

static void __exit pdc_fini(void) 
{
	int e1;

	if ((e1 = tty_unregister_driver(&pdc_drv_driver)))
		printk("pdc_drv: failed to unregister pdc_drv driver (%d)\n",
		       e1);
}


module_init(pdc_drv_init);
module_exit(pdc_fini);
MODULE_DESCRIPTION("PDC driver");
MODULE_AUTHOR(AUTHOR);


--------------F2284F98E058B5E182FDCE75--





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Subject: RE: [parisc-linux] 2.4.14 and ISA-NE2000 StackDump
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To: 'Helge Deller' <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:13158

Well, you=B4ve got a 64Bit-Kernel and i run a 32bit Kernel on my =
715/75.

I just tested with 2.4.4-pa7 and got the same effect...

greetings
Wolfgang

> -----Original Message-----
> From:	Helge Deller [SMTP:deller@gmx.de]
> Sent:	Monday, November 19, 2001 7:52 PM
> To:	Pedot, Wolfgang; 'Parisc Linux Mailinglist'
> Subject:	Re: [parisc-linux] 2.4.14 and ISA-NE2000 StackDump
>=20
> Hi Wolfgang,
>=20
> I've no problems here with my ISA NE2000 and kernel 2.4.14-pa7:
>=20
> NE*000 ethercard probe at 0x340: 08 00 00 50 11 13
> eth0: NE2000 found at 0x340, using IRQ 10.
>=20
> pa64:~# uname -a
> Linux pa64 2.4.14-pa7 #2 Mon Nov 19 19:43:37 CET 2001 parisc unknown
>=20
> pa64:~# cat /proc/interrupts
>  IRQ      count         Region    ISR
>  10:       2346            EISA  NE2000
>=20
> Sadly I've no idea why it doesn't work for you...
>=20
> Greetings,
> Helge
>=20
> On Monday 19 November 2001 15:16, Pedot, Wolfgang wrote:
> > Hi,
> >
> > I just tried to update to 2.4.14-pa6 and noticed a stackdump during
> > initialisation of my old NE2000 ISA-Nic which works fine using the =
last
> > 2.4.9 Kernel. After this stackdump i booted (reset used) 2.4.9 =
again and
> > the machine hung without any message druring initialistaion of the =
NE2000
> > (right after "NE*000 ethercard probe at 0x300:"). I had to =
power-cycle the
> > machine to make it work again.
> >
> > Heres the log-message:
> >
> > Last modified Nov 1, 2000 by Paul Gortmaker
> > NE*000 ethercard probe at 0x300:WARNING! Stack pointer and cr30 do =
not
> > correspond!
> >
> > Bad Address (null pointer deref?): Code=3D6 regs=3D100fe380 =
(Addr=3D50412d43)
> >
> > any hints?
> > Are there any guys arround here which made their ne2000 work with =
2.4.14?
> > greetings
> >
> > Wolfgang Pedot
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: Helge Deller <helge.deller@sap.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.14 and ISA-NE2000 StackDump
Date: Tue, 20 Nov 2001 18:10:41 +0100
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Hi Wolfgang,

No, the 715/64 has a PA7100LC processor and thus is 32bit only machine.
I'm running a 32bit kernel too, but maybe 715/old (as yours) and 715/new
machines (as mine) work different. IIRC the 715/old has an ASP and the
715/new have a LASI chip. Maybe you could send me your whole dmsg
and I'll take a look again.

Greetings,
Helge

On Tuesday 20 November 2001 17:57, Pedot, Wolfgang wrote:
> Well, youve got a 64Bit-Kernel and i run a 32bit Kernel on my 715/75.
>
> I just tested with 2.4.4-pa7 and got the same effect...
>
> greetings
> Wolfgang
>
> > -----Original Message-----
> > From:	Helge Deller [SMTP:deller@gmx.de]
> > Sent:	Monday, November 19, 2001 7:52 PM
> > To:	Pedot, Wolfgang; 'Parisc Linux Mailinglist'
> > Subject:	Re: [parisc-linux] 2.4.14 and ISA-NE2000 StackDump
> >
> > Hi Wolfgang,
> >
> > I've no problems here with my ISA NE2000 and kernel 2.4.14-pa7:
> >
> > NE*000 ethercard probe at 0x340: 08 00 00 50 11 13
> > eth0: NE2000 found at 0x340, using IRQ 10.
> >
> > pa64:~# uname -a
> > Linux pa64 2.4.14-pa7 #2 Mon Nov 19 19:43:37 CET 2001 parisc unknown
> >
> > pa64:~# cat /proc/interrupts
> >  IRQ      count         Region    ISR
> >  10:       2346            EISA  NE2000
> >
> > Sadly I've no idea why it doesn't work for you...
> >
> > Greetings,
> > Helge
> >
> > On Monday 19 November 2001 15:16, Pedot, Wolfgang wrote:
> > > Hi,
> > >
> > > I just tried to update to 2.4.14-pa6 and noticed a stackdump during
> > > initialisation of my old NE2000 ISA-Nic which works fine using the last
> > > 2.4.9 Kernel. After this stackdump i booted (reset used) 2.4.9 again
> > > and the machine hung without any message druring initialistaion of the
> > > NE2000 (right after "NE*000 ethercard probe at 0x300:"). I had to
> > > power-cycle the machine to make it work again.
> > >
> > > Heres the log-message:
> > >
> > > Last modified Nov 1, 2000 by Paul Gortmaker
> > > NE*000 ethercard probe at 0x300:WARNING! Stack pointer and cr30 do not
> > > correspond!
> > >
> > > Bad Address (null pointer deref?): Code=6 regs=100fe380 (Addr=50412d43)
> > >
> > > any hints?
> > > Are there any guys arround here which made their ne2000 work with
> > > 2.4.14? greetings
> > >
> > > Wolfgang Pedot



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On Tue, Nov 20, 2001 at 06:10:41PM +0100, Helge Deller wrote:
> Hi Wolfgang,
> 
> No, the 715/64 has a PA7100LC processor and thus is 32bit only machine.
> I'm running a 32bit kernel too, but maybe 715/old (as yours) and 715/new
> machines (as mine) work different. IIRC the 715/old has an ASP and the
> 715/new have a LASI chip. Maybe you could send me your whole dmsg
> and I'll take a look again.

Not only that, the EISA adapter in the 715/new is Wax and that in 715/old
is Mongoose (maybe Outfield, but I think that was in 735/755).

-- 
Revolutions do not require corporate support.



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Subject: [parisc-linux] make palo error?
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I do a make palo and I get an error, but the lifimage file is in
../palo/lifimage. Should I be worried about this?

--snip--snip--snip--
./palo/mkbootable ipl/iplelf iplboot
ELF32 executable
entry 0x60000 size 28652
./palo/palo -f /dev/null \
-b iplboot \
-k /usr/src/parisc/linux/vmlinux \
 \
-c "0/vmlinux HOME=/ TERM=linux root=/dev/sda4  " \
        -s lifimage
palo version 0.97 timball@jane Tue Nov 20 16:08:52 EST 2001
ELF32 executable
calculated xsum 0x4e32b74 got 0x0
calculated xsum 0x4e32b74 got 0x0
make[1]: *** [lifimage-only] Error 2
make[1]: Leaving directory `/usr/src/parisc/palo'
make: *** [palo] Error 2
--snip--snip--snip--

--timball

-- 
	GPG key available on pgpkeys.mit.edu
pub  1024D/511FBD54 2001-07-23 Timothy Lu Hu Ball <timball@tux.org>
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= I do a make palo and I get an error, but the lifimage file is in
= ../palo/lifimage. Should I be worried about this?

Yes, worry.  do a 'make realclean' first -- at least make sure
that iplboot is nuked

	-P



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Subject: Re: [parisc-linux] Re: E55 status - THE DRIVER !
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Hello Christoph,

I have integrated your patch into my tree, and have been testing out the
patch on my C200+ and the K460.  With the PDC console patch, I do get to
the console on the K460 which is great news.  I am still going to work
on the driver for the actual hardware (in my case the Eole CAP/MUX, and
in your case the Sahp Baat Kiuh AP/MUX), but this is a nice work around
until that work is finished.

When integrating your patch into my tree, I made the following changes:

* Dropped the LCD support.
 	I do not understand this portion of the code very well, and it 	had
some uglyness that made me feel uneasy to commit to the tree.  	Someone
else should look at this and integrate it properly.

* Renamed the pdc_drv to pdc_console.
	Just seemed more accurate to me .. I am open for other opinions
	on this.

* Added the configure option and help text for the PDC software console.
* Inegerated CONFIG_PDC_CONSOLE into the drivers/char/Makefile.
* Integrated CONFIG_PDC_CONSOLE into arch/parisc/kernel/pdc_cons.c and
	performed some minor cleanups.

* probably other things I've forgotten :)


Overall I though the patch looked great, but I still have 1 concern left
and that is about the major number.

According to Documentation/devices.txt major number 30 is reserved for:
 30 char        iBCS-2 compatibility devices

I understand about --><-- much about how major numbers are handled and I
know this is a topic of debate among the main stream kernel developers. 
If we ever want to move this driver into the mainstream kernel this
issue will probably need to be resolved ... and I have no idea on how to
proceed.  Maybe others on this list will have an idea, or when the time
comes we will need to address this on the lkml.  Before I commit this
patch to the CVS repository, I'd like to get some concensus on this list
about what is right.  (ie for the debian installer to work with this
device, /dev/ttyB0 will need to be added to the MAKEDEV package, etc).

Anyways the patch is available for feedback at: 
ftp://ftp.parisc-linux.org/patches/pdc_console.diff

I am still working on testing this driver ... I would be very happy to
see install the K460 using the debian installer using this patch.  I am
currently working on making that happen.

Thanks,

- Ryan




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> I am still working on testing this driver ... I would be very happy to
> see install the K460 using the debian installer using this patch.  I am
> currently working on making that happen.

I got through enough of the installer tonight to see what I wanted to
see.  This PDC Software console should allow a complete debian install. 
The dialog menus are not pretty, but they are functional.

Thanks,

- Ryan




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This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.

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HP's Developer and Solution Partner Portal (DSPP) is proud to announce the
addition of the PA-RISC 2.0 Architecture Documentation in PDF format.  This
resource is now available to you in hard copy, PDF or HTML - all from the
PA-RISC topic area of the DSPP.

You can directly access the index page for these PDF documents by following
this link:
http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,2
533,00.html

A listing of all of the resources we offer for the PA-RISC topic area is
available at:
http://h21007.www2.hp.com/dspp/tech/tech_TechTypeListingPage_IDX/1,1704,1040
3,00.html

Or, you can access the entire Developer & Solution Partner Portal at
http://www.hp.com/dspp

This resource has been added as a direct response to developer feedback.
Thank you for sharing your needs with us and please let us know if there are
additional resources that we can provide for you.

Sincerely,

Pamela Brann
Human Factors Consultant
PA-RISC Topic Area Owner, DSPP
Developers' Resource Lab, Hewlett-Packard
pamela_brann@hp.com
970.898.4835 w


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Hi Matt,

Yesterday evening, I just finished the apt-get dist-upgrade (via apt offline
procedure) (which is not very accurate but operational with relevant changes) of
my 712 box first and all seems OK :)).

Then I launch (what I do the most) the compilation of a kernel (2.4.14-pa2)(it
just take time because 712 is a bit slow) and all seems OK too (no Error just
some usual warning).

Just install and reboot with this kernel and all seems find till now (XFree,
Xfce,...).

Thanks to all for great job
        Joel

-------------------------------------------------
This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)



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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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> 
> HP's Developer and Solution Partner Portal (DSPP) is proud to announce the
> addition of the PA-RISC 2.0 Architecture Documentation in PDF format.  This
> resource is now available to you in hard copy, PDF or HTML - all from the
> PA-RISC topic area of the DSPP.
>

Wonderfull!
Many thanks to all the people who put in the hard work!
Now I can add to my growing list of documentation!

Cheers,
Carlos O'Donell Jr. 



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Subject: Re: [parisc-linux] Re: E55 status - THE DRIVER !
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Very good, that you have done the config stuff, I was not able to, as 
I had never things to do with the configuring (expcet for using it ...).

Will you chick in the stuff for all ?

I have no problem with it, if another major was taken. I only used this,
because there was a hole in the `major.h' at 30.

Will the changes done for the PA Linux tree also migrated to the main
stream kernel tree ?
When ? All minor versions (2.4.13, 2.4.14, ....) or at 2.6.x !!

I am happy, that your machine is also working with that stuff !

Bye
Christoph P.



Ryan Bradetich wrote:
> 
> > I am still working on testing this driver ... I would be very happy to
> > see install the K460 using the debian installer using this patch.  I am
> > currently working on making that happen.
> 
> I got through enough of the installer tonight to see what I wanted to
> see.  This PDC Software console should allow a complete debian install.
> The dialog menus are not pretty, but they are functional.
> 
> Thanks,
> 
> - Ryan
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Hello again,

Are you able to write the drivers ?
Do you have the documentation for that ?
I have problems with my spare time, but I am also interested in writing
drivers (especially for my machine !)

Which drivers will you write ?
MUX ?, SCSI ? (parallel port ?)

Bye
Christoph



Ryan Bradetich wrote:
> 
> Hello Christoph,
> 
> I have integrated your patch into my tree, and have been testing out the
> patch on my C200+ and the K460.  With the PDC console patch, I do get to
> the console on the K460 which is great news.  I am still going to work
> on the driver for the actual hardware (in my case the Eole CAP/MUX, and
> in your case the Sahp Baat Kiuh AP/MUX), but this is a nice work around
> until that work is finished.
> 
> When integrating your patch into my tree, I made the following changes:
> 
> * Dropped the LCD support.
>         I do not understand this portion of the code very well, and it  had
> some uglyness that made me feel uneasy to commit to the tree.   Someone
> else should look at this and integrate it properly.
> 
> * Renamed the pdc_drv to pdc_console.
>         Just seemed more accurate to me .. I am open for other opinions
>         on this.
> 
> * Added the configure option and help text for the PDC software console.
> * Inegerated CONFIG_PDC_CONSOLE into the drivers/char/Makefile.
> * Integrated CONFIG_PDC_CONSOLE into arch/parisc/kernel/pdc_cons.c and
>         performed some minor cleanups.
> 
> * probably other things I've forgotten :)
> 
> Overall I though the patch looked great, but I still have 1 concern left
> and that is about the major number.
> 
> According to Documentation/devices.txt major number 30 is reserved for:
>  30 char        iBCS-2 compatibility devices
> 
> I understand about --><-- much about how major numbers are handled and I
> know this is a topic of debate among the main stream kernel developers.
> If we ever want to move this driver into the mainstream kernel this
> issue will probably need to be resolved ... and I have no idea on how to
> proceed.  Maybe others on this list will have an idea, or when the time
> comes we will need to address this on the lkml.  Before I commit this
> patch to the CVS repository, I'd like to get some concensus on this list
> about what is right.  (ie for the debian installer to work with this
> device, /dev/ttyB0 will need to be added to the MAKEDEV package, etc).
> 
> Anyways the patch is available for feedback at:
> ftp://ftp.parisc-linux.org/patches/pdc_console.diff
> 
> I am still working on testing this driver ... I would be very happy to
> see install the K460 using the debian installer using this patch.  I am
> currently working on making that happen.
> 
> Thanks,
> 
> - Ryan

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Subject: [parisc-linux] Need EVC-VGA adapter
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Hi,

I recently purchased a C240.

Unfortunately no EVC-VGA adapter was in the package.
I thought it is quite easy to get these (since EVC is
the new VESA standard), but I just found a few Internet
companies who sell them. The adapter itself is rather expensive,
usually about 50 EURO.

If somebody has such an adapter or adapter cable and if
he/she is willing to sell it for less than 50 EURO
(including shipping costs to Ireland), please let me know

TIA, max




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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: E55 status - THE DRIVER !
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To: Ryan Bradetich <ryan_bradetich@uswest.net>
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Hallo Ryan Bradetich !

I cannot send emails to you !!!!!
The system cannot sent to the address 

	ryan_bradetich@uswest.net

Do you have an error in your reply address ?
Why I cannot reach you ?

With friendly regards
Christoph



Ryan Bradetich wrote:
> 
> Hello Christoph,
> 
> I have integrated your patch into my tree, and have been testing out the
> patch on my C200+ and the K460.  With the PDC console patch, I do get to
> the console on the K460 which is great news.  I am still going to work
> on the driver for the actual hardware (in my case the Eole CAP/MUX, and
> in your case the Sahp Baat Kiuh AP/MUX), but this is a nice work around
> until that work is finished.
> 
> When integrating your patch into my tree, I made the following changes:
> 
> * Dropped the LCD support.
>         I do not understand this portion of the code very well, and it  had
> some uglyness that made me feel uneasy to commit to the tree.   Someone
> else should look at this and integrate it properly.
> 
> * Renamed the pdc_drv to pdc_console.
>         Just seemed more accurate to me .. I am open for other opinions
>         on this.
> 
> * Added the configure option and help text for the PDC software console.
> * Inegerated CONFIG_PDC_CONSOLE into the drivers/char/Makefile.
> * Integrated CONFIG_PDC_CONSOLE into arch/parisc/kernel/pdc_cons.c and
>         performed some minor cleanups.
> 
> * probably other things I've forgotten :)
> 
> Overall I though the patch looked great, but I still have 1 concern left
> and that is about the major number.
> 
> According to Documentation/devices.txt major number 30 is reserved for:
>  30 char        iBCS-2 compatibility devices
> 
> I understand about --><-- much about how major numbers are handled and I
> know this is a topic of debate among the main stream kernel developers.
> If we ever want to move this driver into the mainstream kernel this
> issue will probably need to be resolved ... and I have no idea on how to
> proceed.  Maybe others on this list will have an idea, or when the time
> comes we will need to address this on the lkml.  Before I commit this
> patch to the CVS repository, I'd like to get some concensus on this list
> about what is right.  (ie for the debian installer to work with this
> device, /dev/ttyB0 will need to be added to the MAKEDEV package, etc).
> 
> Anyways the patch is available for feedback at:
> ftp://ftp.parisc-linux.org/patches/pdc_console.diff
> 
> I am still working on testing this driver ... I would be very happy to
> see install the K460 using the debian installer using this patch.  I am
> currently working on making that happen.
> 
> Thanks,
> 
> - Ryan

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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From: Herb Radford <herbr@magma.ca>
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Subject: [parisc-linux] My C200 situation
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Xref: news.gmane.org gmane.linux.ports.parisc:13172

OK, I was sidetracked for a few days but I'm back with news on the C200.

I got the cross-compile stuff for my Thunderbird Linux machine, got the
latest snapshot of the source and made a change in
drivers/video/sti/sticore.c to reverse the #if 1 to #if 0 and compiled. The
FX4 works with the exception of a short period during the startup where the
"Tux" logo would be displayed (at least I think this is the place!) the
screen switches to text on a set of 4 stripes - blue, black, blue then
black (quite broad vertical stripes) but then reverts back to the plain
black mode without the logo. Otherwise it seems to work.

Does that mean that stifb is up on the FX4??
What about X then?

I haven't yet dug into the code yet but I'm not too sure I could divine the
cause. Any hints or tips???

By the way, I also tried a 64-bit kernel 2.4.14pa6 which did not do
anything I could see after setting the w-bit in the processor status
register (went to 64-bit mode).

Regards, Herb




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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Hardball ERS now available
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I've made the Hardball External Reference Specification (ERS) available on
the tech documentation page at www.parisc-linux.org.  This ERS documents
the I/O subsystem for the 735/755.  It includes documentation for the
fast/wide SCSI interface and FDDI interface.  This document can also be
useful for 710/720/730/750 systems, since the document is very similar to
the Cobra/Coral I/O subsystem ERS, i.e. not much changed between the two.

The document is somewhat large (4.2 Mb) because it is a pdf file derived
from tiff images.  I could not find the original source for the document
(it's 10 years old) so I had to scan it in.  I also had to edit the images
to "clean" it for release, which basically involved removing engineer
names, email addresses and phone numbers in this case.  I chose a
resolution that I felt provided the best tradeoff between readability and
size).

Enjoy,

John Marvin
jsm@fc.hp.com



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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] My C200 situation
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Herb Radford wrote:
> Does that mean that stifb is up on the FX4??

No. That's just the STI console - different driver.

> What about X then?

Dunno - but don't think that's the same.

> By the way, I also tried a 64-bit kernel 2.4.14pa6 which did not do
> anything I could see after setting the w-bit in the processor status
> register (went to 64-bit mode).

Did you enable CONFIG_PDC_NARROW?
That's required for 64-bit on Cxxx (but not on Cxxxx) machines.

grant



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] My C200 situation
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On Wed, Nov 21, 2001 at 05:35:55PM -0500, Herb Radford wrote:
> I got the cross-compile stuff for my Thunderbird Linux machine, got the

btw, one of the PA processors (think it's the PA7100 / PCX-T) is also
called T-bird, so using this nomenclature for an athlon is rather confusing.

-- 
Revolutions do not require corporate support.



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Hi,

I'm trying to install Linux on my old HP 715/64 but i have some problems
with the keyboard and the mouse ...

I'm booting on the CD ROM on the ISO image File "palinux-0.9.2.iso"

During the boot process, my keyboard (PS2) an the mouse (HIL)are recognised
but when i'm under the "installation process", I have any response from my
keyboard !

RQ : My PS2 keyboard and the HIL mouse are connected on my workstation with
a "keyboard adapter module" and this module is directly attached with on
the station with an RJ45 Cable


If sb can help me ..

______________________________
Hugues HENRIOT
Computer and Network Services
Centre de Recherche Public Henri Tudor
6, rue Coudenhove-Kalergi
L-1359 Luxembourg-Kirchberg

Phone : 425991 218
Fax : 436523
______________________________






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Subject: Re: [parisc-linux] HP 715/64 Keyboard not recognized
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Hi Hugues,

> During the boot process, my keyboard (PS2) an the mouse (HIL)are recognised
> but when i'm under the "installation process", I have any response from my
> keyboard !
>
> RQ : My PS2 keyboard and the HIL mouse are connected on my workstation with
> a "keyboard adapter module" and this module is directly attached with on
> the station with an RJ45 Cable

Hmm, we don't have any HIL-mouse driver in pa-linux yet. Are you sure your mouse 
is really working (boot messages ???) and if it's so then I assume you have a PS/2 mouse.

Since I have a 715/64 myself I know that at least on my system the keyboard is a HIL
model (and connected to a "keyboard adapter module" too). We had and still
have some problems with keyboards after system reset, so I would askl you to only install 
only after a full power-on, not after a warm-boot. 
And for HIL keyboards you should select "cancel" in the keyboard language dialog....

Helge



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Subject: [parisc-linux] Mutexes ?
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Xref: news.gmane.org gmane.linux.ports.parisc:13178

Is there a problem with threads and/os mutexes on parisc linux, or is it
just me ?

checking for mutexes... no
configure: WARNING: THREAD MUTEXES NOT AVAILABLE FOR THIS COMPILER/ARCHITECTURE.



-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.



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Subject: Re: [parisc-linux] My C200 situation is fantastic now on to the K9000 Power House :)
Date: Thu, 22 Nov 2001 20:47:48 +1000
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What a great day it is for these fantastic RISC boxes :)

Grant you caused us to perservere with these boxes until now thanks and
hopefully [Im very confident] the K9000's are back in style!

4 PA 180 risc + 8 GB Ram + 34 Terra Bytes of HD :)

SMOKIN'

Chris Christie

ps. Will forward K9000 results :)

The key to this is WYSE monitors as early as a WYSE 60 will do :)

HP wont like that they cost $$$$$$$

:)

Make a WIASA decision today !

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----- Original Message -----
From: "Grant Grundler" <grundler@puffin.external.hp.com>
To: "Herb Radford" <herbr@magma.ca>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Thursday, November 22, 2001 2:47 PM
Subject: Re: [parisc-linux] My C200 situation


> Herb Radford wrote:
> > Does that mean that stifb is up on the FX4??
>
> No. That's just the STI console - different driver.
>
> > What about X then?
>
> Dunno - but don't think that's the same.
>
> > By the way, I also tried a 64-bit kernel 2.4.14pa6 which did not do
> > anything I could see after setting the w-bit in the processor status
> > register (went to 64-bit mode).
>
> Did you enable CONFIG_PDC_NARROW?
> That's required for 64-bit on Cxxx (but not on Cxxxx) machines.
>
> grant
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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On Wed, 21 Nov 2001, Grant Grundler wrote:

> Herb Radford wrote:
> > Does that mean that stifb is up on the FX4??
>
> No. That's just the STI console - different driver.
>
> > What about X then?
>
> Dunno - but don't think that's the same.

Mhhh, can anybody give an clear answer to this question ?
Or is here some more testing necessary ?

Does anybody know whether stifb and/or XFree is working on a RavenU+
(C200/C240) with a VISUALIZE FX graphics card ?

Did anybody have success in running XFree using a PC PCI graphics card ?
(probably this is just possible as a 2nd graphics card as Grant wrote in
 a former email)

> > By the way, I also tried a 64-bit kernel 2.4.14pa6 which did not do
> > anything I could see after setting the w-bit in the processor status
> > register (went to 64-bit mode).

Thanks, Max




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Subject: [parisc-linux] 'apt-get upgrade' now okay?
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Hi!

I've tested a bit:

	apt-get update
	apt-get --download-only dist-upgrade
	mkdir /root/CHROOT
	cd /var/cache/apt/archives
	for i in *.deb; do
		dpkg -X ${i} /root/CHROOT
	done

(Yes, I know, this will not result in a sanely installed chroot
environment...)

However, this chroot environment (including shiny new libc6-2.2.4-6)
seems to be okay. So, is it okay now to also update the whole
system?

MfG, JBG
	
-- 
Jan-Benedict Glaw   .   jbglaw@lug-owl.de   .   +49-172-7608481
	http://lug-owl.de/~jbglaw/software/snapshot2cvs/



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>However, this chroot environment (including shiny new libc6-2.2.4-6)
>seems to be okay. So, is it okay now to also update the whole
>system?
>
Some people (myself included) have succeeded in compiling a kernel
after apt-get update, and there was a message from a developer which
said 'it seems to be ok, proceed with caution' - so I guess it is okay.

Good luck,
Jurriaan




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Won't compile. Complains about __set_bit

--
Kaj-Michael Lang , milang@tal.org




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From: "Kaj-Michael Lang" <milang@tal.org>
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Subject: [parisc-linux] Power button on 712
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This might sound really strange but anyway:

Should the power button work under Linux ?
Even after halting I need to pull the cord to get my machine to power down,
as it won't respond to the the power button.

--
Kaj-Michael Lang , milang@tal.org




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Subject: Re: [parisc-linux] Power button on 712
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On Thu, 2001-11-22 15:48:41 +0200, Kaj-Michael Lang <milang@tal.org>
wrote in message <003801c1735c$6581b7b0$56dc10c3@amos>:
> This might sound really strange but anyway:
> 
> Should the power button work under Linux ?
> Even after halting I need to pull the cord to get my machine to power down,
> as it won't respond to the the power button.

During initialisation of hardware (the front LED is blinking) you
can "easily" switch off the machine. But, after the OS was started,
it's not such a good idea to allow an user to simply fiddle with
the BRS (-> big red switch). Try to /sbin/poweroff or to /sbin/halt
your box and try again:-)

MfG, JBG

-- 
Jan-Benedict Glaw   .   jbglaw@lug-owl.de   .   +49-172-7608481
	http://lug-owl.de/~jbglaw/software/snapshot2cvs/



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On Thu, 22 Nov 2001, Kaj-Michael Lang wrote:

> This might sound really strange but anyway:
> 
> Should the power button work under Linux ?
> Even after halting I need to pull the cord to get my machine to power down,
> as it won't respond to the the power button.

Hi!

That's not the normal behaviour. After I do a shutdown -h on a 712, the
LED on the front panel goes off and it is possible to turn off the power
using the front power switch. I have to pull the plug only after I get a
kernel panic or something like this.

Best regards,

Jurij.





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Under hp-ux, if you press the "power-button" on the front, the system traps
it, and performs a "shutdown -h now"  (at least it takes ages to stop)
So the button on the front is not a BRS, but just generates a irq (on some
systems anyway....)

I presume this irq could be trapped under linux aswell, not?

Hans
	-----Original Message-----
	From:	Jan-Benedict Glaw [SMTP:jbglaw@lug-owl.de]
	Sent:	Thursday, November 22, 2001 2:53 PM
	To:	parisc-linux@lists.parisc-linux.org
	Subject:	Re: [parisc-linux] Power button on 712

	On Thu, 2001-11-22 15:48:41 +0200, Kaj-Michael Lang <milang@tal.org>
	wrote in message <003801c1735c$6581b7b0$56dc10c3@amos>:
	> This might sound really strange but anyway:
	> 
	> Should the power button work under Linux ?
	> Even after halting I need to pull the cord to get my machine to
power down,
	> as it won't respond to the the power button.

	During initialisation of hardware (the front LED is blinking) you
	can "easily" switch off the machine. But, after the OS was started,
	it's not such a good idea to allow an user to simply fiddle with
	the BRS (-> big red switch). Try to /sbin/poweroff or to /sbin/halt
	your box and try again:-)

	MfG, JBG

	-- 
	Jan-Benedict Glaw   .   jbglaw@lug-owl.de   .   +49-172-7608481
		http://lug-owl.de/~jbglaw/software/snapshot2cvs/

	_______________________________________________
	parisc-linux mailing list
	parisc-linux@lists.parisc-linux.org
	http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: [parisc-linux] working .config for C160/2.4.14 ?
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I am trying to build a bootable kernel for my C160 & am having a few
problems. The box is currently running a kernel I tweaked for my 712/80i
but it is rather old & I am suffering from SCSI problems.

Does anyone have a usable .config they could mail me for this box for
2.4.16-pa* ?

TIA
PeteM




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From: Jurij Smakov <jurijus@theophys.kth.se>
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On Thu, 22 Nov 2001, Witvliet, Hans wrote:

> Under hp-ux, if you press the "power-button" on the front, the system traps
> it, and performs a "shutdown -h now"  (at least it takes ages to stop)
> So the button on the front is not a BRS, but just generates a irq (on some
> systems anyway....)
> 
> I presume this irq could be trapped under linux aswell, not?

Hi!

I've posted a question about that on the list some time ago. According to
lasi docs, cutting of the power with the power switch should generate a
power failure interrupt, which I thought I could catch and make a clean
shutdown. I suppose, that it should be an interruption with code 2, so
I've added a handler for that in arch/parisc/kernel/traps.c (I think).
Well, it never became triggered by the power switch, and I have no idea,
why.

Best regards,

Jurij





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Before anyone asks how I am getting so far ahead of Linus & AC the version
below should of course be 2.2.14-pa*.

On Thu, 22 Nov 2001, Peter Mottram wrote:

> I am trying to build a bootable kernel for my C160 & am having a few
> problems. The box is currently running a kernel I tweaked for my 712/80i
> but it is rather old & I am suffering from SCSI problems.
>
> Does anyone have a usable .config they could mail me for this box for
> 2.4.16-pa* ?
>
> TIA
> PeteM
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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>I am trying to build a bootable kernel for my C160 & am having a few
>problems. The box is currently running a kernel I tweaked for my 712/80i
>but it is rather old & I am suffering from SCSI problems.
>
>Does anyone have a usable .config they could mail me for this box for
>2.4.16-pa* ?
>
My C200 runs fine when I run

make oldconfig

in a pristine kernel tree.

You'll get the default config, which has some sensible values. All you =
have to
choose is the processor-type. I could choose PA8x00, but that still gives
errors when I run 'make mrproper' in the kernel tree, so I always choose =
PA7x00.

Good luck,
Jurriaan




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On Thu, Nov 22, 2001 at 10:32:09AM +0000, Richard Allen wrote:
> Is there a problem with threads and/os mutexes on parisc linux, or is it
> just me ?
> 
> checking for mutexes... no
> configure: WARNING: THREAD MUTEXES NOT AVAILABLE FOR THIS COMPILER/ARCHITECTURE.

what package?  many programs implement their own mutex support -- there's
nothing wrong with the ones in glibc.

-- 
Revolutions do not require corporate support.



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On Thu, Nov 22, 2001 at 03:26:41PM +0000, Matthew Wilcox wrote:
> On Thu, Nov 22, 2001 at 10:32:09AM +0000, Richard Allen wrote:
> > Is there a problem with threads and/os mutexes on parisc linux, or is it
> > just me ?
> > 
> > checking for mutexes... no
> > configure: WARNING: THREAD MUTEXES NOT AVAILABLE FOR THIS COMPILER/ARCHITECTURE.
> 
> what package?  many programs implement their own mutex support -- there's
> nothing wrong with the ones in glibc.

Its rpm 4.0.3.   The DB people think my crash problem in DB3 has something
to do with mutexes and looking at the output from configure Id say it
is a definate possibility.

-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.



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> Its rpm 4.0.3.   The DB people think my crash problem in DB3 has something
> to do with mutexes and looking at the output from configure Id say it
> is a definate possibility.

that configure is from db3? This was fixed ages ago...... i hope the
brokenness didn't sneak back in...

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/



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> I recently purchased a C240.
> 
> Unfortunately no EVC-VGA adapter was in the package.
> I thought it is quite easy to get these (since EVC is
> the new VESA standard), but I just found a few Internet
> companies who sell them. The adapter itself is rather expensive,
> usually about 50 EURO.

I have excactly the same problem, but I am living in germany. any chance
here?

another solution would be to get another graphics card for the C240
which has a standart vga port.

andi





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Are there any optimal CFLAGS this group recomends when compiling
binaries for PA-Risc linux that are supposed to work in most places ?

I've seen -mpa-risc-1-0 used a bit, but is that wise ? 1.1 must be
better ?    Or is it best to not use any extra cflags what so ever ?

-- 
Rikki.         --  HP Technical Support, RHCE, RHCX, HP-UX Certified Admin.
               --  Solaris 7 Certified Systems and Network Administrator.
Bell Labs Unix --  Reach out and grep someone.
Those who do not understand Unix are condemned to reinvent it, poorly.



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Richard Hirst <rhirst@linuxcare.com> writes:

> Our kernel-headers debs are missing asm/offset.h, which is created
> late on in a kernel build.

Ewww.

> Maybe the kernel should build offset.h as part of make dep, or something.

Yes.  Building the file during make dep, and *not* removing it during make
clean (remove it during distclean, leave it present during clean) would fix
the problem.

> glibc build should use kernel-headers, but I guess libc6-dev_2.2.4-6
> was built using some local kernel tree for the headers, and has picked
> up a 64 bit offset.h.  so, anyone trying to build gdb will have to
> replace their offset.h.

So, we've never had a real kernel-headers package before.  I guess once we get
one that's right, we should re-spin glibc even if it's a binNMU.

Bdale



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On Tue, Nov 20, 2001 at 01:20:26AM -0700, Bdale Garbee wrote:
> > glibc build should use kernel-headers, but I guess libc6-dev_2.2.4-6
> > was built using some local kernel tree for the headers, and has picked
> > up a 64 bit offset.h.  so, anyone trying to build gdb will have to
> > replace their offset.h.
> 
> So, we've never had a real kernel-headers package before.  I guess once we get
> one that's right, we should re-spin glibc even if it's a binNMU.

*sigh*.  whenever i built glibc, i ensured it was built with 32-bit kernel
headers.

-- 
Revolutions do not require corporate support.



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On 22 Nov 2001, andi wrote:

> > I recently purchased a C240.
> >
> > Unfortunately no EVC-VGA adapter was in the package.
> > I thought it is quite easy to get these (since EVC is
> > the new VESA standard), but I just found a few Internet
> > companies who sell them. The adapter itself is rather expensive,
> > usually about 50 EURO.
>
> I have excactly the same problem, but I am living in germany. any chance
> here?

try www.kindermann.de,
they're offering conference utilities such as video projectors etc.
Since some new projectors use a EVC interface, they used to sell
an adapter cable (I didn't find it on their website anymore).

Try searching for EVCM-15HDF (that's the name of the EVC-VGA adapter);
I found at least an US seller (http://www.networktechinc.com/cgi-bin/keemux/adapters.html)
who sells it for $46 (US & Canada only)

There is also a seller in the UK (http://www.nti1.co.uk/cable-usb.html or
http://www.itm-components.com/cable.htm (same company)), who sells it for
35 UK Pound, but there is a minimum shipping cost of 40 UK Pounds!
The seller said that he's happy to send it by mail (so that you can avoid
the high shipping costs), however you'll take the risk then.

greetings max




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On Thu, Nov 22, 2001 at 12:26:07PM +0000, Markus Grabert wrote:
> Does anybody know whether stifb and/or XFree is working on a RavenU+
> (C200/C240) with a VISUALIZE FX graphics card ?

it doesn't. Only sticon works, but that's not enough to get X working.
I'm waiting for documentation, which tells me at least how to enable
the framebuffer and how to setup colormaps.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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On Thursday 22 November 2001 14:46, Kaj-Michael Lang wrote:
> Won't compile. Complains about __set_bit

fixed in 2.4.14-pa9, please report back if you find bugs

Helge




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On Thu, Nov 22, 2001 at 03:41:55PM +0100, Peter Mottram wrote:
> Before anyone asks how I am getting so far ahead of Linus & AC the version
> below should of course be 2.2.14-pa*.

Or even 2.4.14-pa* ;-)

arch/parisc/debian-configs/32

Richard


> On Thu, 22 Nov 2001, Peter Mottram wrote:
> 
> > I am trying to build a bootable kernel for my C160 & am having a few
> > problems. The box is currently running a kernel I tweaked for my 712/80i
> > but it is rather old & I am suffering from SCSI problems.
> >
> > Does anyone have a usable .config they could mail me for this box for
> > 2.4.16-pa* ?
> >
> > TIA
> > PeteM
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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Subject: Re: [parisc-linux] working .config for C160/2.4.14 ?
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Xref: news.gmane.org gmane.linux.ports.parisc:13203

It is a general problem when trying to use a bunch of Arabic numerals.
Perhaps...

II.IV.XIV-pa*

Would be less confusing.

Mike

On Thursday 22 November 2001 06:02 pm, Richard Hirst wrote:
> On Thu, Nov 22, 2001 at 03:41:55PM +0100, Peter Mottram wrote:
> > Before anyone asks how I am getting so far ahead of Linus & AC the
> > version below should of course be 2.2.14-pa*.
>
> Or even 2.4.14-pa* ;-)
>
> arch/parisc/debian-configs/32
>
> Richard
>
> > On Thu, 22 Nov 2001, Peter Mottram wrote:
> > > I am trying to build a bootable kernel for my C160 & am having a few
> > > problems. The box is currently running a kernel I tweaked for my
> > > 712/80i but it is rather old & I am suffering from SCSI problems.
> > >
> > > Does anyone have a usable .config they could mail me for this box for
> > > 2.4.16-pa* ?
> > >
> > > TIA
> > > PeteM
> > >
> > >
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] kerneldoc
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i've had to explain this at least twice individually to people now,
so here goes for everyone:

No adding kerneldoc to PA implementations of functions which are used
in the generic kernel.

Kerneldoc is intended to document the kernel.  The only chance we
have of keeping it up to date is by putting it next to the code it is
intended to document.  Then when people change the meaning or usage
of a function, they will hopefully change the documentation of it too.
Like it or not, x86 is the dominant architecture and changes are generally
made there first.  So this is the _only_ architecture which should have
documentation in the asm directory unless the function being documented
is arch-specific.  Otherwise we get out of date documentation, which is
worse than useless.

Note also that kerneldoc should be used to document _what_ a
function does, not _how_ it works.  How it works should be obvious
(see Documentation/CodingStyle if you are confused on this point), and
comments on `tricks' employed should be restricted to ordinary comments.

-- 
Revolutions do not require corporate support.



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From: Bernd Eckenfels <lists@lina.inka.de>
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Subject: [parisc-linux] 715/50 does not find image on cd
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Hi,

perhaps someone can help me with that problem, I have a 715/50 which is
reporting:

PDC ROM rev. 1.3
IODC ROM rev. 1.1
96MB RAM

I have attached an externel SCSI CD-ROM. On Power on, it finds two devices,
the internal Quantum disk on scsi.6.0 and the CDROM on scsi.5.0. But it
refuses to boot from the CD rom. I tried a 0.9 Debian Image and Original
HP-UX 9.0 and 10.20 Disks.

If I do a "search" in boot admin, it does not list me any "bootable media".

Looks to me, like it is seeing the CDROM, but unable to find the IPL on it?

Well... anybdy has an idea what to do?

I thought the Firmaware may be the problem, but I dont know where i see the
firmware revision and how to update it.. 

info tells me:

processor revision = 9
system controller = 0
FP CoPro revision = 1

HW Version = 0x3100
SW Version = 0x0481

Greetings
Bernd



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On Sat, Nov 24, 2001 at 04:07:48PM +0100, Bernd Eckenfels wrote:
> I have attached an externel SCSI CD-ROM. On Power on, it finds two devices,
> the internal Quantum disk on scsi.6.0 and the CDROM on scsi.5.0. But it
> refuses to boot from the CD rom. I tried a 0.9 Debian Image and Original
> HP-UX 9.0 and 10.20 Disks.

firmware won't boot from all drives; try a different cdrom drive or netboot.

-- 
Revolutions do not require corporate support.



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Subject: [parisc-linux] Future of parisc development? (continu branch  2.4 or change to 2.5)
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Hi all,

Just stay inform.

Thanks for info,
	Joel



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Subject: Re: [parisc-linux] My C200 situation is fantastic now on to the K9000 Power House :)
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"Chris Christie" wrote:
> Grant you caused us to perservere with these boxes until now thanks and
> hopefully [Im very confident] the K9000's are back in style!

Glad to hear I was so inspirational...but lots of other people did
 most of the work. For K/C-class, most of the recent work
was done by Ryan Bradetich.

> ps. Will forward K9000 results :)

You do mean HP-9000? K-class?

anyway...it's does good to hear that it's working for you.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253



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Jan-Benedict Glaw wrote:
> But, after the OS was started,
> it's not such a good idea to allow an user to simply fiddle with
> the BRS (-> big red switch).

While that's true, the intent of the "soft-power" switch was in fact
to let a normal user safely power off the system. THe system needs
to poll the status of the switch and at some point decide it's
time to power off the box. I don't think docs for "soft power"
have been published. I have passed necessary information to
a few folks who've signed NDAs.

grant



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Subject: Re: [parisc-linux] 715/50 does not find image on cd
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Bernd Eckenfels wrote:
> If I do a "search" in boot admin, it does not list me any "bootable media".
> Looks to me, like it is seeing the CDROM, but unable to find the IPL on it?

Search the parisc-linux mail archive for "spinup" or "target initiated
negotiation". It might be possible to make this drive work with
the older boxes but it's probably easier to just try a different one.

> I thought the Firmaware may be the problem, but I dont know where i see the
> firmware revision and how to update it.. 

See #7 on the FAQ
http://www.parisc-linux.org/faq/index.html

grant



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: [parisc-linux] Status E55 - is the driver accepted ?
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Hello PARISC "Hackers" !!

What's the status of the PDC ROM tty driver ?

Ryan Bradetich told me, that he has tested it and added the
config stuff. 

By the way: I cannot reach Ryan Bradetich, his email address
seems to be wrong !!!!

With friendly regards
Christoph P.


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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From: "Craig D. Lansing" <lansing@beldar.com>
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Subject: [parisc-linux] J2240 - It Runs!
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This is a multi-part message in MIME format.

------=_NextPart_000_00FB_01C175F2.71C42560
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	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

In case anyone cares, I finally got back to my J2240 (the one that was =
rescued from the trash) this weekend and have gotten it successfully =
running with a dual-boot HP-UX 10.20 / Linux 2.4.0-32 configuration.  =
The Debian install was a bit choppy, i.e. many "hangs" from which only =
pulling out power from underneath the box solved, but I eventually got =
there.  Even from a cold boot, the install would hang in different =
places.  I'm having major problems with the package installer hanging =
which causes me to have to power cycle the box and run fsck to recover, =
but the basic system is up and running.  Maybe I'll go to the latest =
kernel to see what that does to / for me.  So far, I've only been able =
to connect to the serial port via a Reflection session to login to the =
system after getting through the boot path & IPL on the attached =
graphics terminal.  Does anyone know how to use the graphics terminal =
exclusively?  I assume that I need to change some of the IPL parms, e.g. =
sti=3D or console=3D, but I do not know what values to use.  Any help =
would be appreciated.

TIA,
Craig


------=_NextPart_000_00FB_01C175F2.71C42560
Content-Type: text/html;
	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2614.3500" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>In case anyone cares, I finally got =
back to my=20
J2240 (the one that was rescued from the trash) this weekend and have =
gotten it=20
successfully running with a dual-boot HP-UX 10.20 / Linux 2.4.0-32=20
configuration.&nbsp; The Debian install was a bit choppy, i.e. many =
"hangs" from=20
which only pulling out power from underneath the box solved, but I =
eventually=20
got there.&nbsp; Even from a cold boot, the install would hang in =
different=20
places.&nbsp; I'm having major problems with the package installer =
hanging which=20
causes me to have to power cycle the box and run fsck to recover, but =
the basic=20
system is up and running.&nbsp; Maybe I'll go to the latest kernel to =
see what=20
that does to / for me.&nbsp; So far, I've only been able to connect to =
the=20
serial port via a Reflection session to login to the system after =
getting=20
through the boot path &amp; IPL on the attached graphics terminal.&nbsp; =
Does=20
anyone know how to use the graphics terminal exclusively?&nbsp; I assume =
that I=20
need to change some of the IPL parms, e.g. sti=3D or console=3D, but I =
do not know=20
what values to use.&nbsp; Any help would be appreciated.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>TIA,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Craig</FONT></DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

------=_NextPart_000_00FB_01C175F2.71C42560--




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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] J2240 - It Runs!
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"Craig D. Lansing" wrote:
> Maybe I'll go to the latest kernel to see what that does to / for me.

I think you'll be alot better off.

>  So far, I've only been able
> to connect to the serial port via a Reflection session to login to the =
> system after getting through the boot path & IPL on the attached =
> graphics terminal.

You probably have the palo param "console=ttyS0" and that's why
it's switching to serial console. Palo documentation suggests
using "console=tty" for auto-detecting the console.

>   Does anyone know how to use the graphics terminal =
> exclusively?  I assume that I need to change some of the IPL parms, e.g. =
> sti=3D or console=3D, but I do not know what values to use.  Any help =
> would be appreciated.

With 0.9.2, if the graphics head were recognized and has a working
STI ROM, I would expect the console to remain on the graphics head.

Caveat: this is from one of the few people who *only* uses serial
consoles on hppa-linux.

grant




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From: Phil Anderson <andersop@neverland.ncssm.edu>
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Subject: [parisc-linux] bad local loopback (and 712 X query)
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Hi all;

I send this with a dual purpose:

First:

I got my 712/80i running fine off the 0.9.2 ISO (it worked GREAT after I
tried the 32bit kernel and not the 64bit one :> ) Anyway, It runs pretty
well. So: has anyone gotten X working on a 712? and would like to share?

Second:
like I said, it works pretty well...
...except for the fact that while I'm using it (or even when it's just at
a tty login prompt) these errors come up:

ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16


67 and 68 are bootp server and client ports, respectively. How can I get
rid of these? they prevent the box from being really useful because they
pop up every minute or so at the current cursor location, which is a major
detriment to doing, well, anything.

As far as I can tell, these packets are coming from the machine itself,
and it's attempting to send a broadcast packet over loopback. Perhaps by
turning off bootp services in /etc/inetd.conf?

thanks for your time,

-phil


-- 
===============================================================================

Phil Anderson
andersop@neverland.ncssm.edu
The_13th_Ewok@hotmail.com

"Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson




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Phil Anderson wrote:
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
> skb: pf=2 (unowned) dev=lo len=328
> PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16

http://www.parisc-linux.org/release-0.9/errata-092.html

(and I didn't just add that)

grant



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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] Status E55 - is the driver accepted ?
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On Sun, 2001-11-25 at 15:16, Christoph Plattner wrote:
> Hello PARISC "Hackers" !!
> 
> What's the status of the PDC ROM tty driver ?

I just got back from vacation, I've updated to the latest -pa number and
fixed the patch (I forgot to include the firmware.c file in the diff).

I have gotten some preliminary feedback from Matthew Wilcox to change
the Major number from 30 to 60 which I have done.  I have put out a new
.diff (with the firmware.c changes this time!) for anyone to review. 
Unless someone has problems with the patch, I am planning on committing
this tomorrow (once Matthew has a chance to finish reviewing the
complete patch).
 
> Ryan Bradetich told me, that he has tested it and added the
> config stuff. 

yep, I also updated it to the CVS head.

> By the way: I cannot reach Ryan Bradetich, his email address
> seems to be wrong !!!!

yeah .. broken mailer on my side (I'm in the middle of an ISP switch,
sorry for the confusion).   The address that works is
rbradetich@uswest.net (which is subscribed to the mailing list, so I got
copies of all the mail.. sorry for the bounces ... this has been fixed
now.  This address will be changing in the near future as I get moved to
my new ISP.

Thanks,

- Ryan

> With friendly regards
> Christoph P.
> 
> 
> -- 
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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Subject: Re: [parisc-linux] Re: E55 status - THE DRIVER !
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On Wed, 2001-11-21 at 12:12, Christoph Plattner wrote:
> Very good, that you have done the config stuff, I was not able to, as 
> I had never things to do with the configuring (expcet for using it ...).

No problem, I've done it once in the past for a different driver :)

> Will you chick in the stuff for all ?
Yes.  I wanted to first understand how to handle the major number, I
think I've got my answer for that now.
 
> I have no problem with it, if another major was taken. I only used this,
> because there was a hole in the `major.h' at 30.

Willy Suggested 60 since it was for local/experimental use.  If the
driver gets merged into the mainline kernel, we will have to address
this at that time.

> Will the changes done for the PA Linux tree also migrated to the main
> stream kernel tree ?
> When ? All minor versions (2.4.13, 2.4.14, ....) or at 2.6.x !!
I believe that is the plan, Willy has been handling most of that so that
is a better question for him to answer.


> I am happy, that your machine is also working with that stuff !

Thanks, and thank you for the driver!

- Ryan

> Bye
> Christoph P.
> 
> 
> 
> Ryan Bradetich wrote:
> > 
> > > I am still working on testing this driver ... I would be very happy to
> > > see install the K460 using the debian installer using this patch.  I am
> > > currently working on making that happen.
> > 
> > I got through enough of the installer tonight to see what I wanted to
> > see.  This PDC Software console should allow a complete debian install.
> > The dialog menus are not pretty, but they are functional.
> > 
> > Thanks,
> > 
> > - Ryan
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> -- 
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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Subject: Re: [parisc-linux] Re: E55 status - THE DRIVER !
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On Wed, 2001-11-21 at 12:16, Christoph Plattner wrote:
> Hello again,
> 
> Are you able to write the drivers ?

Not sure, but we will find out :)

> Do you have the documentation for that ?
Depends on if I can find it.  A lot of this older documentation I have
not been able to locate *sigh*.  I have not spent much time looking for
it yet, because I have not started on the drivers yet.  The only driver
I have started on was the MUX driver, and I was unable to locate
documenation so far, but I have not given up yet.

> I have problems with my spare time, but I am also interested in writing
> drivers (especially for my machine !)

> Which drivers will you write ?
> MUX ?, SCSI ? (parallel port ?)

I have a bunch of cards, so pick one that you want to work on, and I can
start on a different one.  I've been working on the MUX lately, but with
your PDC patch, I'm kinda leaning towards the skunk or wizard scsi
card.  I have a stack of cards that to work on, so feel free to grab the
one that suits your fancy :)

- Ryan

> Bye
> Christoph
> 
> 
> 
> Ryan Bradetich wrote:
> > 
> > Hello Christoph,
> > 
> > I have integrated your patch into my tree, and have been testing out the
> > patch on my C200+ and the K460.  With the PDC console patch, I do get to
> > the console on the K460 which is great news.  I am still going to work
> > on the driver for the actual hardware (in my case the Eole CAP/MUX, and
> > in your case the Sahp Baat Kiuh AP/MUX), but this is a nice work around
> > until that work is finished.
> > 
> > When integrating your patch into my tree, I made the following changes:
> > 
> > * Dropped the LCD support.
> >         I do not understand this portion of the code very well, and it  had
> > some uglyness that made me feel uneasy to commit to the tree.   Someone
> > else should look at this and integrate it properly.
> > 
> > * Renamed the pdc_drv to pdc_console.
> >         Just seemed more accurate to me .. I am open for other opinions
> >         on this.
> > 
> > * Added the configure option and help text for the PDC software console.
> > * Inegerated CONFIG_PDC_CONSOLE into the drivers/char/Makefile.
> > * Integrated CONFIG_PDC_CONSOLE into arch/parisc/kernel/pdc_cons.c and
> >         performed some minor cleanups.
> > 
> > * probably other things I've forgotten :)
> > 
> > Overall I though the patch looked great, but I still have 1 concern left
> > and that is about the major number.
> > 
> > According to Documentation/devices.txt major number 30 is reserved for:
> >  30 char        iBCS-2 compatibility devices
> > 
> > I understand about --><-- much about how major numbers are handled and I
> > know this is a topic of debate among the main stream kernel developers.
> > If we ever want to move this driver into the mainstream kernel this
> > issue will probably need to be resolved ... and I have no idea on how to
> > proceed.  Maybe others on this list will have an idea, or when the time
> > comes we will need to address this on the lkml.  Before I commit this
> > patch to the CVS repository, I'd like to get some concensus on this list
> > about what is right.  (ie for the debian installer to work with this
> > device, /dev/ttyB0 will need to be added to the MAKEDEV package, etc).
> > 
> > Anyways the patch is available for feedback at:
> > ftp://ftp.parisc-linux.org/patches/pdc_console.diff
> > 
> > I am still working on testing this driver ... I would be very happy to
> > see install the K460 using the debian installer using this patch.  I am
> > currently working on making that happen.
> > 
> > Thanks,
> > 
> > - Ryan
> 
> -- 
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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> >  So far, I've only been able
> > to connect to the serial port via a Reflection session to login to the =
> > system after getting through the boot path & IPL on the attached =
> > graphics terminal.
>
> You probably have the palo param "console=ttyS0" and that's why
> it's switching to serial console. Palo documentation suggests
> using "console=tty" for auto-detecting the console.

IIRC you should prefer to *NOT* add any "console=xxx"  param
in which case palo will automatically detect if you boot your machine 
via serial cable or from the graphics prompt and will add the right 
param for you during boot.

> >   Does anyone know how to use the graphics terminal =
> > exclusively?  I assume that I need to change some of the IPL parms, e.g.
> > = sti=3D or console=3D, but I do not know what values to use.  Any help =
> > would be appreciated.
>
> With 0.9.2, if the graphics head were recognized and has a working
> STI ROM, I would expect the console to remain on the graphics head.

The "sti=x" param will let you select which STI graphics device to use 
for the initial console in case you have multiple STI graphic devices
in your machine. It does not switch between serial and graphic console.

Don't touch those params and instead install a newer kernel with sticon/stifb 
compiled in, boot your machine and you'll see if your STI graphic is detected.
If it's not detected, then we don't support it yet.

Helge



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] Re: E55 status - THE DRIVER !
Date: Mon, 26 Nov 2001 18:47:31 +0100
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To: Ryan Bradetich <rbradetich@uswest.net>
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Hello again !

Yes especially I am interesting in writing the driver for my E55
MUX board ....

With friendly regards
Christoph P.


Ryan Bradetich wrote:
> 
> On Wed, 2001-11-21 at 12:16, Christoph Plattner wrote:
> > Hello again,
> >
> > Are you able to write the drivers ?
> 
> Not sure, but we will find out :)
> 
> > Do you have the documentation for that ?
> Depends on if I can find it.  A lot of this older documentation I have
> not been able to locate *sigh*.  I have not spent much time looking for
> it yet, because I have not started on the drivers yet.  The only driver
> I have started on was the MUX driver, and I was unable to locate
> documenation so far, but I have not given up yet.
> 
> > I have problems with my spare time, but I am also interested in writing
> > drivers (especially for my machine !)
> 
> > Which drivers will you write ?
> > MUX ?, SCSI ? (parallel port ?)
> 
> I have a bunch of cards, so pick one that you want to work on, and I can
> start on a different one.  I've been working on the MUX lately, but with
> your PDC patch, I'm kinda leaning towards the skunk or wizard scsi
> card.  I have a stack of cards that to work on, so feel free to grab the
> one that suits your fancy :)
> 
> - Ryan
> 
> > Bye
> > Christoph
> >
> >
> >
> > Ryan Bradetich wrote:
> > >
> > > Hello Christoph,
> > >
> > > I have integrated your patch into my tree, and have been testing out the
> > > patch on my C200+ and the K460.  With the PDC console patch, I do get to
> > > the console on the K460 which is great news.  I am still going to work
> > > on the driver for the actual hardware (in my case the Eole CAP/MUX, and
> > > in your case the Sahp Baat Kiuh AP/MUX), but this is a nice work around
> > > until that work is finished.
> > >
> > > When integrating your patch into my tree, I made the following changes:
> > >
> > > * Dropped the LCD support.
> > >         I do not understand this portion of the code very well, and it  had
> > > some uglyness that made me feel uneasy to commit to the tree.   Someone
> > > else should look at this and integrate it properly.
> > >
> > > * Renamed the pdc_drv to pdc_console.
> > >         Just seemed more accurate to me .. I am open for other opinions
> > >         on this.
> > >
> > > * Added the configure option and help text for the PDC software console.
> > > * Inegerated CONFIG_PDC_CONSOLE into the drivers/char/Makefile.
> > > * Integrated CONFIG_PDC_CONSOLE into arch/parisc/kernel/pdc_cons.c and
> > >         performed some minor cleanups.
> > >
> > > * probably other things I've forgotten :)
> > >
> > > Overall I though the patch looked great, but I still have 1 concern left
> > > and that is about the major number.
> > >
> > > According to Documentation/devices.txt major number 30 is reserved for:
> > >  30 char        iBCS-2 compatibility devices
> > >
> > > I understand about --><-- much about how major numbers are handled and I
> > > know this is a topic of debate among the main stream kernel developers.
> > > If we ever want to move this driver into the mainstream kernel this
> > > issue will probably need to be resolved ... and I have no idea on how to
> > > proceed.  Maybe others on this list will have an idea, or when the time
> > > comes we will need to address this on the lkml.  Before I commit this
> > > patch to the CVS repository, I'd like to get some concensus on this list
> > > about what is right.  (ie for the debian installer to work with this
> > > device, /dev/ttyB0 will need to be added to the MAKEDEV package, etc).
> > >
> > > Anyways the patch is available for feedback at:
> > > ftp://ftp.parisc-linux.org/patches/pdc_console.diff
> > >
> > > I am still working on testing this driver ... I would be very happy to
> > > see install the K460 using the debian installer using this patch.  I am
> > > currently working on making that happen.
> > >
> > > Thanks,
> > >
> > > - Ryan
> >
> > --
> > -------------------------------------------------------
> > private:      christoph.plattner@gmx.at
> > company:      christoph.plattner@alcatel.at
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Subject: Re: [parisc-linux] bad local loopback (and 712 X query)
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I know this is kinda cheesey, but kill the dhcp-client process and at least
you won't get these messages anymore.  Long-term find out where in the rc
tree it is started and disable it (I haven't gotten that far yet).


----- Original Message -----
From: Phil Anderson <andersop@bob.ncssm.edu>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Monday, November 26, 2001 1:50 AM
Subject: [parisc-linux] bad local loopback (and 712 X query)


>
> Hi all;
>
> I send this with a dual purpose:
>
> First:
>
> I got my 712/80i running fine off the 0.9.2 ISO (it worked GREAT after I
> tried the 32bit kernel and not the 64bit one :> ) Anyway, It runs pretty
> well. So: has anyone gotten X working on a 712? and would like to share?
>
> Second:
> like I said, it works pretty well...
> ...except for the fact that while I'm using it (or even when it's just at
> a tty login prompt) these errors come up:
>
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
> skb: pf=2 (unowned) dev=lo len=328
> PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
>
>
> 67 and 68 are bootp server and client ports, respectively. How can I get
> rid of these? they prevent the box from being really useful because they
> pop up every minute or so at the current cursor location, which is a major
> detriment to doing, well, anything.
>
> As far as I can tell, these packets are coming from the machine itself,
> and it's attempting to send a broadcast packet over loopback. Perhaps by
> turning off bootp services in /etc/inetd.conf?
>
> thanks for your time,
>
> -phil
>
>
> --
>
============================================================================
===
>
> Phil Anderson
> andersop@neverland.ncssm.edu
> The_13th_Ewok@hotmail.com
>
> "Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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Subject: [parisc-linux] ftp://parisc-linus.org/cvs - binutils? - glibc?
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Hello group,

Could someone please tell me where to go?*

I have checked both /cvs and /src but can not find "glibc" and "binutils" 
snapshots.
Where could I find these?

There have been a number of recent patchs to binutils for hppa.  (Such as: 
http://sources.redhat.com/ml/binutils/2001-11/msg00622.html ) by Alan Modra.
I would like to try keeping a local tree of the hppa version.

Mike
*A rather dangerous question for me to ask.



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Subject: Re: [parisc-linux] ftp://parisc-linus.org/cvs - binutils? - glibc?
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On Tue, Nov 27, 2001 at 12:08:05PM -0600, Michael S . Zick wrote:
> I have checked both /cvs and /src but can not find "glibc" and "binutils" 
> snapshots.
> Where could I find these?

you can't.  we have not maintained glibc & binutils cvs trees for a while.
i suggest the debian packages as your best source of latest bits.

> There have been a number of recent patchs to binutils for hppa.  (Such as: 
> http://sources.redhat.com/ml/binutils/2001-11/msg00622.html ) by Alan Modra.
> I would like to try keeping a local tree of the hppa version.

nobody's going to stop you doing that, though why you wouldn't simply
use the upstream cvs binutils, i don't know.

-- 
Revolutions do not require corporate support.



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On Tuesday 27 November 2001 12:21 pm, Matthew Wilcox wrote:
>  we have not maintained glibc & binutils cvs trees for a while.
> i suggest the debian packages as your best source of latest bits.

Thanks.

> why you wouldn't simply
> use the upstream cvs binutils, i don't know.

A misunderstanding on my part.
I thought that since gcc was a special, branch version, glibc and binutils 
were also (still) specials.

Thanks again.

Mike



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I just obtained two older HP Workstations.  I am not really familar with these stations.  I was able to get on to boot and give me some info.  It tells me this

9000/730 machine.

I was looking at installing parisc-linux on this machine but I am reading the information correctly this particular machine is not supported.  

Is this still true and if so what options do i have.

Thanks

Kevin



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From: Kevin Clark <kclark@halfdimension.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Options for a 730 machinge (sorry for double post - email server is acting up)
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I just obtained two older HP Workstations.  I am not really familar with these stations.  I was able to get on to boot and give me some info.  It tells me this

9000/730 machine.

I was looking at installing parisc-linux on this machine but I am reading the information correctly this particular machine is not supported.  

Is this still true and if so what options do i have.

Thanks

Kevin



From - Thu Nov 08 21:20:37 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Options for a 730 machinge (sorry for double post - email server is acting up)
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On Wed, Nov 28, 2001 at 09:16:08PM -0500, Kevin Clark wrote:
> I just obtained two older HP Workstations.  I am not really familar
> with these stations.  I was able to get on to boot and give me some info.
> It tells me this
> 
> 9000/730 machine.
> 
> I was looking at installing parisc-linux on this machine but I
> am reading the information correctly this particular machine is not
> supported.

the problems with the 730 should now mostly be fixed.  there should be an
0.9.3 cd out soon.

-- 
Revolutions do not require corporate support.



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From: bame@riverrock.org
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Subject: [parisc-linux] 2.4.16 merge
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2.4.16 boots with defconfig kernels, wide and narrow, on c3000.  The
only problem I know about is an inconsequential function I stubbed out
which someone needs to write.

Any reason I shouldn't commit?

	-P



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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] keyboard_tasklet bug?
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Hello parisc-linux hackers,

I have spent the last couple of evenings exploring new (to me anyways)
parts of the kernel tracking down a SMP hang on my C200+.  What I found
appears to be a more generic bug, so I'm posting it here for ideas on
how to fix it, or for someone to explain to me why this isn't a bug :)



After quite a bit of tracking the problem down, I figured out the kernel
wasn't halting, but was stuck in the following infinate loop from
tasklet_action() in kernel/softirq.c

while (list) {
	struct tasklet_struct *t = list;

	list = list->next;

	if (tasklet_trylock(t)) {
		if (!atomic_read(&t->count)) {
			if (!test_and_clear_bit(TASKLET_STATE_SCHED, 						&t->state))
				BUG();
			t->func(t->data);
			tasklet_unlock(t);
			continue;
		}
		tasklet_unlock(t);
	}

	local_irq_disable();
	t->next = tasklet_vec[cpu].list;
	tasklet_vec[cpu].list = t;
	__cpu_raise_softirq(cpu, TASKLET_SOFTIRQ);
	local_irq_enable();
}

I eventually figured out that the if(!atomic_read(&t->count)) was
failing... and the task would be added back into the list via the
following lines of code:

	t->next = tasklet_vec[cpu].list;
	tasklet_vec[cpu].list = t;

This loop would continue since the atomic_read(&t->count) was always
non-zero, and the task was always being put back on the list.


I figured out that the keyboard_task was the task the atomic_read
was failing on, and started to investigate why.  I figured out that 
the keyboard_tasklet was being initialized disabled via the following
macro from include/linux/interrupt.h:

	#define DECLARE_TASKLET_DISABLED(name, func, data) \
	struct tasklet_struct name = { NULL, 0, ATOMIC_INIT(1), func, data }

This macro initialized the ->count to 1.

I also figurd out that the keyboard_tasklet was being scheduled via the
schedule_tasklet() before the enable_tasklet() was called it.  (The
enable_tasklet() provides a memory barrior, then calls atomic_dec()
on the ->count of the tasklet, making it 0).


This trace shows the path to the first schedule_tasklet() of the
keyboard_tasklet, starting with the start_kernel() since that is the
common point between schedule_tasklet() and enable_tasklet().


schedule_tasklet(keyboard_tasklet)
-------------------------
1. start_kernel()
2. console_init()
3. con_init()
4. vc_init()
5. reset_terminal()
6. set_leds()
7. schedule_tasklet()



enable_tasklet(keyboard_tasklet)
--------------------------------
1. start_kernel()
2. rest_init()
3. init() via kernel_thread.
4. do_base_setup()
5. do_init_calls()
6. chr_dev_init()
7. tty_init()
8. kbd_init()
9. enable_tasklet()


Looking in the start_kernel() ... console_init() is the 9th function
called, where as rest_init() is the last function called.

I am not sure why this only showed up under SMP for my on the C200+, but
it was _very_ reproducable.  As a temporary solution (and to verify I'd
found the problem), I commented out the set_leds() in reset_terminal()
and the C200+ boots both SMP and UP fine.  I know this is not the proper
fix, but I am not sure how to fix this problem, thus my post to the list
:)

Thanks for reading, and any feedback welcome!

- Ryan






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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] keyboard_tasklet bug?
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On Thu, Nov 29, 2001 at 12:45:26AM -0700, Ryan Bradetich wrote:
> Hello parisc-linux hackers,
> 
> I have spent the last couple of evenings exploring new (to me anyways)
> parts of the kernel tracking down a SMP hang on my C200+.  What I found
> appears to be a more generic bug, so I'm posting it here for ideas on
> how to fix it, or for someone to explain to me why this isn't a bug :)

Sounds very similar to the problem I fixed with the led tasklet

#ifdef CONFIG_CHASSIS_LCD_LED
        /* Only schedule the led tasklet on cpu 0, and only if it
         * is enabled.
         */
        if (cpu == 0 && !atomic_read(&led_tasklet.count))
                tasklet_schedule(&led_tasklet);
#endif

where I added the atomic_read() call.  In that case it wasn't hanging
my (UP) machine, but it left ksoftirqd_CPU0 at 100% CPU.

Richard




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Xref: news.gmane.org gmane.linux.ports.parisc:13231

Randolph Chung wrote:
> Recently Grant and I have observed several hangs in do_gettimeofday on a
> c3k running 32 or 64-bit kernels (UP). 
> 
> The symptom we see is gettimeoffset returns a negative number which
> results in a huge (unsigned) usec offset in do_gettimeofday, which ends
> up spinning in a while loop.
...
> The last_tick adjustment looks a bit odd. Looking at ia64, it looks more
> like this:
> 
>         last_tick -= clocktick * (jiffies - wall_jiffies + 1);

For the record, this fix was committed in one of the 2.4.14-pa5
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2001-November/030021.html

I'm still not 100% certain all our time keeping code is correct.
But I'm comfortable this patch fixes the problem we saw and
does not introduce any new ones.

grant



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Subject: [parisc-linux] Power button support in kernel 2.4.16-pa4
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Hi,

I've just committed some changes to the parisc cvs kernel (>= 2.4.16-pa4)
which adds support for the power-button.
Those changes include, that after you pressed the power button the kernel
will initiate a clean system shutdown followed by a complete power-off.
The patches were sucessfully tested on a c300 and 715/64 - and hopefully
they will also work for other machines - if not, please let me know.

Greetings,
Helge




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Subject: [parisc-linux] fakeroot broken (by shm changes?)
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fakeroot's stopped working since upgrading to the new kernel, so i think
the emulation of the old sysvipc mechanism may be broken.  this is
on paer, running a 64-bit SMP kernel.  i suspect sysvipc rather than
signals because fakeroot is a heavy user of sysvipc and exposed some
kernel bugs before.

i'm not going to be around till monday afternoon (evening your time),
but it's pretty easy to reproduce -- just run `fakeroot echo hello'.

-- 
Revolutions do not require corporate support.



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Subject: [parisc-linux] Re: two minor c3k bugs
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Forwarded to the list, since it may be of interest for others too:

On Friday 30 November 2001 08:43, Grant Grundler wrote:
> Hi helge!

Hi Grant, 

> It's totally cool that I can shutdown the c3k with just power button!
> playing with 2.4.16-pa5 today I noticed to really minor bugs.
> 1) LCD shows "Linux 2.4.1-pa5" in the top line.
>    UTS_RELEASE is definitely 2.4.16 since uname -a prints that too.
>    It wasn't obvious to me where the "6" was getting lost.
>    I only looked at led.c for a bit - just enough to understand
>    that UTS_RELEASE was used to generate the string.

Hmm, I still have 2.4.16-pa4 here and it definately shows 
"2.4.16-pa4" for me. Maybe a SMP problem ?
You could try to double the size of the udelay() parameter
in lcd_print to see if it cures your problem.

> 2) When powering off with poweroff button, the last msg is
>  "Restarting ...". Are we running the wrong event chain?
>   I haven't had a chance to look at this yet. (reviewing
>   code for bame and dug up the DIAG register access code.)

Currently I use "kill_proc(1, SIGINT, 0);" to kill the init-process -
which is normally a reboot-command and gives the above messages.
That's AFAICS not the right solution, but nfortunately I don't know
how to do it correct right now.
The other thing is, that this call will not work if the init-process
doesn't has PID 1 - this happened to me after a kernel crash, where
init needed to fsck.

> thanks!
> grant

Greetings,
Helge



From - Thu Nov 08 21:20:38 2018
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From: "Kaj-Michael Lang" <milang@tal.org>
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Subject: [parisc-linux] Parse error when compiling glibc. binutils bug ?
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I'm trying to compile glibc 2.2.4+plus all the debian patches I could find.
I'm using the
latest H. J. Lu binutils (2.11.92.0.12.3). The error is this:

make[1]: Leaving directory
`/archive/work/talinuxcvs/base/glibc/tmp/glibc-2.2.4/elf'
gcc   -shared -static-libgcc -Wl,-O1  -Wl,-dynamic-linker=/lib/ld.so.1  -Bsy
sdeps/../csu/  -Wl,--version-script=sysdeps/../libc.map -Wl,-soname=libc.so.
6 -Wl,-z,combreloc -nostdlib -nostartfiles -e __libc_main -u
__register_frame -L. -Lsysdeps/../math -Lsysdeps/../elf -Lsysdeps/../dlfcn -
Lsysdeps/../nss -Lsysdeps/../nis -Lsysdeps/../rt -Lsysdeps/../resolv -Lsysde
ps/../crypt -Lsysdeps/../linuxthreads -Wl,-rpath-link=.:sysdeps/../math:sysd
eps/../elf:sysdeps/../dlfcn:sysdeps/../nss:sysdeps/../nis:sysdeps/../rt:sysd
eps/../resolv:sysdeps/../crypt:sysdeps/../linuxthreads -o
sysdeps/../libc.so.new sysdeps/../csu/abi-note.o -Wl,--verbose -lgcc 2>&1 |
sed -e '/^=========/,/^=========/!d;/^=========/d' -e
*\.hash[      ]*:.*$/  .note.ABI-tag : { *(.note.ABI-tag) } &/' >
sysdeps/../libc.so.lds
rm -f sysdeps/../libc.so.new
gcc   -shared -static-libgcc -Wl,-O1  -Wl,-dynamic-linker=/lib/ld.so.1  -Bsy
sdeps/../csu/  -Wl,--version-script=sysdeps/../libc.map -Wl,-soname=libc.so.
6 -Wl,-z,combreloc -nostdlib -nostartfiles -e __libc_main -u
__register_frame -L. -Lsysdeps/../math -Lsysdeps/../elf -Lsysdeps/../dlfcn -
Lsysdeps/../nss -Lsysdeps/../nis -Lsysdeps/../rt -Lsysdeps/../resolv -Lsysde
ps/../crypt -Lsysdeps/../linuxthreads -Wl,-rpath-link=.:sysdeps/../math:sysd
eps/../elf:sysdeps/../dlfcn:sysdeps/../nss:sysdeps/../nis:sysdeps/../rt:sysd
eps/../resolv:sysdeps/../crypt:sysdeps/../linuxthreads -o
sysdeps/../libc.so -T sysdeps/../libc.so.lds sysdeps/../csu/abi-note.o
sysdeps/../elf/soinit.os sysdeps/../libc_pic.os sysdeps/../elf/sofini.os
sysdeps/../elf/interp.os sysdeps/../elf/ld.so -lgcc
/usr/lib/gcc-lib/hppa-linux/3.0.2/../../../../hppa-linux/bin/ld:sysdeps/../l
ibc.so.lds:144: parse error
collect2: ld returned 1 exit status
make: *** [sysdeps/../libc.so] Error 1

and the lines around 145 in libc.so.lds looks like this:

    KEEP (*crtbegin.o(.ctors))
    /* We don't want to include the .ctor section from
       from the crtend.o file until after the sorted ctors.
       The .ctor section from the crtend file contains the
       end of ctors marker and it must be last */
    KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors))
    KEEP (*(SORT(.ctors.*)))
    KEEP (*(.ctors))
  }
   .dtors         :
  {/usr/lib/gcc-lib/hppa-linux/3.0.2/../../../../hppa-linux/bin/ld: BFD
2.11.92.0.12.3 20011121 assertion fail elf-strtab.c:207
/usr/lib/gcc-lib/hppa-linux/3.0.2/../../../../hppa-linux/bin/ld: BFD
2.11.92.0.12.3 20011121 assertion fail elf-strtab.c:262

    KEEP (*crtbegin.o(.dtors))
    KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors))
    KEEP (*(SORT(.dtors.*)))
    KEEP (*(.dtors))
  }

145 is the line with the first assertion fail.

Does anyone know what causes it ? Is there a fix ?

--
Kaj-Michael Lang , milang@tal.org




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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: [parisc-linux] Re: fakeroot broken (by shm changes?)
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On Fri, Nov 30, 2001 at 05:17:57AM +0000, Matthew Wilcox wrote:
> fakeroot's stopped working since upgrading to the new kernel, so i think
> the emulation of the old sysvipc mechanism may be broken.  this is
> on paer, running a 64-bit SMP kernel.  i suspect sysvipc rather than
> signals because fakeroot is a heavy user of sysvipc and exposed some
> kernel bugs before.

semctl (,,SETVAL,) is broken. Below is an untested fix, which is taken
from the old sys32_semctl. So this should fix the problem. Since I don't 
have enough time right now to test it, I'd appriciate if someone with a 
64bit machine (the bug doesn't affect 32bit) could test it. Sorry for 
missing that strange feature of our syscall path and the already existing
workaround for it.

Thomas.


Index: sys_parisc32.c
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/sys_parisc32.c,v
retrieving revision 1.24
diff -u -r1.24 sys_parisc32.c
--- sys_parisc32.c	2001/11/23 21:54:28	1.24
+++ sys_parisc32.c	2001/11/30 22:06:19
@@ -3040,3 +3040,20 @@
 	return sys_lseek(fd, offset, origin);
 }
 
+asmlinkage long sys32_semctl_broken(int semid, int semnum, int cmd, union semun arg)
+{
+        union semun u;
+	
+	cmd ~= IPC64; /* should be removed together with the _broken suffix */
+
+        if (cmd == SETVAL) {
+                /* Ugh.  arg is a union of int,ptr,ptr,ptr, so is 8 bytes.
+                 * The int should be in the first 4, but our argument
+                 * frobbing has left it in the last 4.
+                 */
+                u.val = *((int *)&arg + 1);
+                return sys_semctl (semid, semnum, cmd, u);
+	}
+	return sys_semctl (semid, semnum, cmd, arg);
+}
+
Index: syscall.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/syscall.S,v
retrieving revision 1.72
diff -u -r1.72 syscall.S
--- syscall.S	2001/11/23 21:54:28	1.72
+++ syscall.S	2001/11/30 22:00:53
@@ -577,7 +577,7 @@
 	ENTRY_DIFF(recvmsg)
 	ENTRY_SAME(semop)		/* 185 */
 	ENTRY_SAME(semget)
-	ENTRY_SAME(semctl_broken)
+	ENTRY_DIFF(semctl_broken)
 	ENTRY_DIFF(msgsnd)
 	ENTRY_DIFF(msgrcv)
 	ENTRY_SAME(msgget)		/* 190 */




-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: [parisc-linux] Re: two minor c3k bugs
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Helge Deller wrote:
> Forwarded to the list, since it may be of interest for others too:
> 

sure.

> On Friday 30 November 2001 08:43, Grant Grundler wrote:
...
> Hmm, I still have 2.4.16-pa4 here and it definately shows 
> "2.4.16-pa4" for me. Maybe a SMP problem ?

No. I only build UP kernels for the C3k.

> You could try to double the size of the udelay() parameter
> in lcd_print to see if it cures your problem.

After a reboot it worked fine. Could be a timing problem.
Since I can't reproduce it reliably and it's minor, I'm not
going to chase this. Someday when I get bored and ate too much
chocolate (dark, organic, Belgian from Trader Joe's), I might
try to run IRC on the LCD... ;^)

...
> Currently I use "kill_proc(1, SIGINT, 0);" to kill the init-process -
> which is normally a reboot-command and gives the above messages.

Ok. that makes sense.

> That's AFAICS not the right solution, but nfortunately I don't know
> how to do it correct right now.

./kernel/sys.c:         printk(KERN_EMERG "Power down.\n");

That chunk of code seems to do the right thing:
        case LINUX_REBOOT_CMD_POWER_OFF:
                notifier_call_chain(&reboot_notifier_list, SYS_POWER_OFF, NULL);
                printk(KERN_EMERG "Power down.\n");
                machine_power_off();
                do_exit(0);
                break; 

I know that msg since I regularly "powerdown" my c3k.
Perhaps replicate that code?

cheers,
grant



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Subject: [parisc-linux] Re: two minor c3k bugs
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Hi Grant,

On Saturday 01 December 2001 07:11, Grant Grundler wrote:
> > Currently I use "kill_proc(1, SIGINT, 0);" to kill the init-process -
> > which is normally a reboot-command and gives the above messages.
>
> Ok. that makes sense.
>
> > That's AFAICS not the right solution, but nfortunately I don't know
> > how to do it correct right now.
>
> ./kernel/sys.c:         printk(KERN_EMERG "Power down.\n");
>
> That chunk of code seems to do the right thing:
>         case LINUX_REBOOT_CMD_POWER_OFF:
>                 notifier_call_chain(&reboot_notifier_list, SYS_POWER_OFF,
> NULL); printk(KERN_EMERG "Power down.\n");
>                 machine_power_off();
>                 do_exit(0);
>                 break;
>
> I know that msg since I regularly "powerdown" my c3k.
> Perhaps replicate that code?

Yes, that's the right code-path, but sadly calling this function
would  immediately power off the computer without doing a nice
system shutdown.
I'll need to investigate how to first find the PID of the init process and
then how to tell it to shut down the system cleanly.

Helge

> cheers,
> grant




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Xref: news.gmane.org gmane.linux.ports.parisc:13239

The PCI endian change posted to the list earlier has been checked in as
2.4.16-pa9. Please let me know if this breaks any of your pci mmio
devices....

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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From: Joerg Hartmann <j.hartmann@reinarts.de>
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Subject: [parisc-linux] init error on a 720
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Hello Guru's,

as you guess, i like to install Linux on a HP Workstation.
It is an hp9000 model 720.
And here the problem starts - on some websites is stated that pa-risc 
linux will never work on 720's  on some other sites i can read it does !
Maybe it depends - but on what ? 

So i took the 0.9.2 iso-image from www.parisc-linux.org and tried an 
installation. After switching to serial console i could see the kernel 
coming up until it has to start "init" - than it loops forever with

handle_interruption() pid=1 command='init'

On the list archive i found, that some other people had the same problem, 
even with 720 models.  But i could not find a solution which works for me.
If there is one , could you please tell me where to RTFM ?

Here are some hardware infos :

Found devices:
1. Coral SGC Graphics (10) at 0xf8000000, versions 0x4, 0x0, 0x77, 0x0, 
0x0
2. Cobra Core BA (11) at 0xf082f000, versions 0x4, 0x0, 0x70, 0x0, 0x0
3. Cobra Core SCSI (10) at 0xf0825000, versions 0x4, 0x0, 0x71, 0x0, 0x0
4. Cobra Core LAN (802.3) (10) at 0xf0826000, versions 0x4, 0x0, 0x72, 
0x0, 0x0
5. Cobra Core HIL (10) at 0xf0821000, versions 0x4, 0x0, 0x73, 0x0, 0x0
6. Cobra Core RS-232 (10) at 0xf0823000, versions 0x4, 0x0, 0x75, 0x0, 0x0
7. Cobra Core RS-232 (10) at 0xf0822000, versions 0x4, 0x0, 0x75, 0x0, 0x0
8. Cobra Core Centronics (10) at 0xf0824000, versions 0x4, 0x0, 0x74, 
0x0, 0x0
9. Cobra (720) (0) at 0xfffbe000, versions 0x200, 0x0, 0x4, 0x0, 0x81
10. Cobra (1) at 0xfffbf000, versions 0x13, 0x0, 0x9, 0x0, 0x0
That's a total of 10 devices.
CPU(s): 1 x PA7000 (PCX-S) at 50.000000 MHz

And there is a second problem with the scsi bus :

sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
scsi0: Unable to abort command for target 0
scsi0: Unable to send Bus Device Reset for target 0
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 0b8f8058 (script[0x0016]), dsps = 0b8f8cee, target = 0
scsi0: Failing command for ID0
scsi0: Unable to abort command for target 0
scsi0: Unable to abort command for target 1
scsi0: Unable to send Bus Device Reset for target 1
scsi0: Unable to do SCSI bus reset
scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
scsi0: istat = 0c, sstat0 = 00, sstat1 = 00, dstat = 00
scsi0: dsp = 0b8f8058 (script[0x0016]), dsps = 0b8f8cee, target = 0
scsi0: Failing command for ID0
  Vendor: IBM       Model: CDRM00203     !K  Rev: BZ33
  Type:   CD-ROM                             ANSI SCSI revision: 02
  Vendor: HP        Model: HP35480A          Rev: TI00
  Type:   Sequential-Access                  ANSI SCSI revision: 02
  Vendor: HP        Model: 97560             Rev: 0BW2
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 5, lun 0
SCSI device sda: 2647080 512-byte hdwr sectors (1355 MB)
Partition check:
 sda: unknown partition table

I realy hope you can point me to the right direction. 
If i can not  get linux up and running on that box, this computer will be 
put in the waste basket :-(

regards
			Jrg Hartmann
-- 
Joerg Hartmann
j.hartmann@reinarts.de



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From: Thomas Marteau <marteaut@esiee.fr>
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HI Joerg,
> 
> as you guess, i like to install Linux on a HP Workstation.
> It is an hp9000 model 720.
> And here the problem starts - on some websites is stated that pa-risc
> linux will never work on 720's  on some other sites i can read it does !
> Maybe it depends - but on what ?

As you'll see, you have the answer hidden in your mail :)
In fact, the official website stated upon the latest ISO released and
our website
( http://mkhppa1.esiee.fr/list.html ) is based on the latest CVS. It is
a great difference. Some drivers have been rewritten or patched and some
CPU support has been added!
> http://mkhppa1.esiee.fr/list.htmlhttp://mkhppa1.esiee.fr/list.html
> So i took the 0.9.2 iso-image from www.parisc-linux.org and tried an
> installation. After switching to serial console i could see the kernel
> coming up until it has to start "init" - than it loops forever with
> 
This has been solved. You need a new boot-fllopy
> handle_interruption() pid=1 command='init'
> On the list archive i found, that some other people had the same problem,
> even with 720 models.  But i could not find a solution which works for me.
> If there is one , could you please tell me where to RTFM ?
Try the CVS mailing list search @
http://www.parisc-linux.org/mailing-lists/index.html !
With PCXS and init, you have this:
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2001-October/029699.html

> And there is a second problem with the scsi bus :
Richard Hirst has modified the code of the driver to make it work.
Try to pass this in the kernel parameter at boot time:
sim700=nodisc:0xff 
Anyway, more info on that here ->
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-October/014116.html

> I realy hope you can point me to the right direction.
> If i can not  get linux up and running on that box, this computer will be
> put in the waste basket :-(
No, don't do that! :-)

Thomas.
ESIEE Team



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To: Joerg Hartmann <j.hartmann@reinarts.de>
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Hello Joerg,

I got my 720/50 up and running with 2.4.9-pa70 or thereabouts.
2.4.14-pa2 also worked fine. Haven't had time to test the newest kernel
yet. I suggest you check the parisc-linux archives. I was quite verbal
in my quest to get my 720/50 going. :-)

Basically, I did the following:

1. Enable the serial console
2. Create a new nfsroot by hacking the debootstrap scripts on my i386. I
   had to use some special debs here, but I believe they are now in
   unstable.
3. Cross-compile the latest kernel using xc-latest, and make a lifimage
   with palo.
4. Netboot the lifimage with bootpd/rbootd and mount the nfsroot created
   in step 2 read-write.
5. fdisk and mke2fs the partitions (remember the partition for palo!) I
   wanted to install on.
6. Manually walk through the debootstrap and install all the packages I
   required on the new mounted partition (you use a chroot sometimes).
7. Install palo.
8. Reboot. apt-get update. apt-get upgrade.

Or you could just wait for the 0.9.3 ISO which is out/will be out
shortly.

Regards,

Albert


On Mon, 03 Dec 2001, Joerg Hartmann wrote:

> Hello Guru's,
>=20
> as you guess, i like to install Linux on a HP Workstation.
> It is an hp9000 model 720.
> And here the problem starts - on some websites is stated that pa-risc=20
> linux will never work on 720's  on some other sites i can read it does !
> Maybe it depends - but on what ?=20
>=20
> So i took the 0.9.2 iso-image from www.parisc-linux.org and tried an=20
> installation. After switching to serial console i could see the kernel=20
> coming up until it has to start "init" - than it loops forever with
>=20
> handle_interruption() pid=3D1 command=3D'init'
>=20
> On the list archive i found, that some other people had the same problem,=
=20
> even with 720 models.  But i could not find a solution which works for me.
> If there is one , could you please tell me where to RTFM ?
>=20
> Here are some hardware infos :
>=20
> Found devices:
> 1. Coral SGC Graphics (10) at 0xf8000000, versions 0x4, 0x0, 0x77, 0x0,=
=20
> 0x0
> 2. Cobra Core BA (11) at 0xf082f000, versions 0x4, 0x0, 0x70, 0x0, 0x0
> 3. Cobra Core SCSI (10) at 0xf0825000, versions 0x4, 0x0, 0x71, 0x0, 0x0
> 4. Cobra Core LAN (802.3) (10) at 0xf0826000, versions 0x4, 0x0, 0x72,=20
> 0x0, 0x0
> 5. Cobra Core HIL (10) at 0xf0821000, versions 0x4, 0x0, 0x73, 0x0, 0x0
> 6. Cobra Core RS-232 (10) at 0xf0823000, versions 0x4, 0x0, 0x75, 0x0, 0x0
> 7. Cobra Core RS-232 (10) at 0xf0822000, versions 0x4, 0x0, 0x75, 0x0, 0x0
> 8. Cobra Core Centronics (10) at 0xf0824000, versions 0x4, 0x0, 0x74,=20
> 0x0, 0x0
> 9. Cobra (720) (0) at 0xfffbe000, versions 0x200, 0x0, 0x4, 0x0, 0x81
> 10. Cobra (1) at 0xfffbf000, versions 0x13, 0x0, 0x9, 0x0, 0x0
> That's a total of 10 devices.
> CPU(s): 1 x PA7000 (PCX-S) at 50.000000 MHz
>=20
> And there is a second problem with the scsi bus :
>=20
> sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
> scsi0: Revision 0x0
> scsi0: test 1 completed ok.
> scsi0 : LASI/Simple 53c7xx
> scsi0: Unable to abort command for target 0
> scsi0: Unable to send Bus Device Reset for target 0
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: istat =3D 0c, sstat0 =3D 00, sstat1 =3D 00, dstat =3D 00
> scsi0: dsp =3D 0b8f8058 (script[0x0016]), dsps =3D 0b8f8cee, target =3D 0
> scsi0: Failing command for ID0
> scsi0: Unable to abort command for target 0
> scsi0: Unable to abort command for target 1
> scsi0: Unable to send Bus Device Reset for target 1
> scsi0: Unable to do SCSI bus reset
> scsi0: >>>>>>>>>>>> Host reset <<<<<<<<<<<<
> scsi0: istat =3D 0c, sstat0 =3D 00, sstat1 =3D 00, dstat =3D 00
> scsi0: dsp =3D 0b8f8058 (script[0x0016]), dsps =3D 0b8f8cee, target =3D 0
> scsi0: Failing command for ID0
>   Vendor: IBM       Model: CDRM00203     !K  Rev: BZ33
>   Type:   CD-ROM                             ANSI SCSI revision: 02
>   Vendor: HP        Model: HP35480A          Rev: TI00
>   Type:   Sequential-Access                  ANSI SCSI revision: 02
>   Vendor: HP        Model: 97560             Rev: 0BW2
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Detected scsi disk sda at scsi0, channel 0, id 5, lun 0
> SCSI device sda: 2647080 512-byte hdwr sectors (1355 MB)
> Partition check:
>  sda: unknown partition table
>=20
> I realy hope you can point me to the right direction.=20
> If i can not  get linux up and running on that box, this computer will be=
=20
> put in the waste basket :-(
>=20
> regards
> 			J=F6rg Hartmann
> --=20
> Joerg Hartmann
> j.hartmann@reinarts.de
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

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From: joel.soete@freebel.net
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Subject: [parisc-linux] Kernel 2.4.16-pa10
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Hi all,

The kernel 2.4.16-pa10 run roughtly on my B180 (not yet tested on 712)
But STI console semms broken:
A large banner with "INVALID SCAN FREQ." in the middle of the screen and in
background something like parasitical tv reception (white line scanning
screen)... After some minutes it stop?
Thanks in advance for help,
        Joel

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From: Phil Anderson <andersop@neverland.ncssm.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel 2.4.16-pa10
Date: Mon, 3 Dec 2001 22:43:14 -0500 (EST)
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Hi.

This invalid scan problem suggests to me that the box is putting out a
resolution/frequency that the monitor cannot support. The banner in the
muddle of the screen is a monitor on-screen-display error. I don't know
about B180's but on my 712 this happened. In the boot loader firmware you
should be able to select resolutions -- I booted it on another monitor,
lovered the frequency and resolution, then switched back to the first
monitor. So, i don't think that's a problem with the kernel, rather the
settings of the box's STI and the limitations of the monitor you're using.

-phil



On Mon, 3 Dec 2001 joel.soete@freebel.net wrote:

> Hi all,
>
> The kernel 2.4.16-pa10 run roughtly on my B180 (not yet tested on 712)
> But STI console semms broken:
> A large banner with "INVALID SCAN FREQ." in the middle of the screen and in
> background something like parasitical tv reception (white line scanning
> screen)... After some minutes it stop?
> Thanks in advance for help,
>         Joel
>
> -------------------------------------------------
> This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>

-- 
===============================================================================

Phil Anderson
UNIX Systems Administrator
andersop@neverland.ncssm.edu
The_13th_Ewok@hotmail.com

"Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson




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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] Kernel 2.4.16-pa10: sti console brokrn?
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You have right, I forget to mentionned that the screen was an HP model A4575A
with a selected resolution of 1280*1024 which works fine till now with previous
kernel 2.4.9 and 2.4.14.

So what should be the right resolution?

Joel

Quoting Phil Anderson <andersop@neverland.ncssm.edu>:

> Hi.
> 
> This invalid scan problem suggests to me that the box is putting out a
> resolution/frequency that the monitor cannot support. The banner in the
> muddle of the screen is a monitor on-screen-display error. I don't know
> about B180's but on my 712 this happened. In the boot loader firmware
> you
> should be able to select resolutions -- I booted it on another monitor,
> lovered the frequency and resolution, then switched back to the first
> monitor. So, i don't think that's a problem with the kernel, rather the
> settings of the box's STI and the limitations of the monitor you're
> using.
> 
> -phil
> 
> 
> 
> On Mon, 3 Dec 2001 joel.soete@freebel.net wrote:
> 
> > Hi all,
> >
> > The kernel 2.4.16-pa10 run roughtly on my B180 (not yet tested on
> 712)
> > But STI console semms broken:
> > A large banner with "INVALID SCAN FREQ." in the middle of the screen
> and in
> > background something like parasitical tv reception (white line
> scanning
> > screen)... After some minutes it stop?
> > Thanks in advance for help,
> >         Joel
> >
> > -------------------------------------------------
> > This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
> 
> -- 
> ===============================================================================
> 
> Phil Anderson
> UNIX Systems Administrator
> andersop@neverland.ncssm.edu
> The_13th_Ewok@hotmail.com
> 
> "Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson
> 
> 
> 


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Looks like -pa12 enabled some #if 0 code in arch/parisc/mm/init.c that
is causing things to die. Both Grant and I saw ifconfig abort when
the free_initmem code was enabled. Reverting back to 1.43 worked for
me...

Looks like Helge checked that in.. Helge, can you please take a look?

Soft power is very cool though! :-)

thanks,
randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Subject: [parisc-linux] 720 Installation
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Hi folks,

you are realy great ! :-)
With the pointer to the palinux-0.9.3-base-rc5.iso from Richard Hirst  i 
got my 720 up and running . Even the graphics console is working now
and the SCSI-Problem went away.
Thanks !

There is only one little thingy left with the keyboard.
But i dont call this a problem (now).
Whenever i switch the keyboard layout to german, this keyboard stops 
doing something useful to me.
There is something happen when i press some keys - but nothing i expected.
So i installed palinux with english keyboard and this works.

This was a big step to a fine new samba server ...

regards
			Jrg
-- 
Joerg Hartmann
j.hartmann@reinarts.de



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On Tuesday 04 December 2001 08:22, Joerg Hartmann wrote:
> There is only one little thingy left with the keyboard.
> But i dont call this a problem (now).
> Whenever i switch the keyboard layout to german, this keyboard stops
> doing something useful to me.
> There is something happen when i press some keys - but nothing i expected.
> So i installed palinux with english keyboard and this works.

Hi Joerg,

Presumably you have a HIL keyboard and the selectable keyboard layouts
are intended for PS/2 keyboards only. IIRC it's documented somewhere 
on the cd (README?).

Greetings,
Helge



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Subject: [parisc-linux] 2.4.16-pa12 Power failled (was:  2.4.16-pa10: sti console broken?)
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Hi all,

Sti consol is Ok now.

But receive on consol how many "POWERFAIL INTERRUPTION".
I beleive it comes from scsi dirver sym53c8xx but not sure.

Thanks for all great job,
        Joel

Quoting joel.soete@freebel.net:

> You have right, I forget to mentionned that the screen was an HP model
> A4575A
> with a selected resolution of 1280*1024 which works fine till now with
> previous
> kernel 2.4.9 and 2.4.14.
> 
> So what should be the right resolution?
> 
> Joel
> 
> Quoting Phil Anderson <andersop@neverland.ncssm.edu>:
> 
> > Hi.
> > 
> > This invalid scan problem suggests to me that the box is putting out
> a
> > resolution/frequency that the monitor cannot support. The banner in
> the
> > muddle of the screen is a monitor on-screen-display error. I don't
> know
> > about B180's but on my 712 this happened. In the boot loader firmware
> > you
> > should be able to select resolutions -- I booted it on another
> monitor,
> > lovered the frequency and resolution, then switched back to the first
> > monitor. So, i don't think that's a problem with the kernel, rather
> the
> > settings of the box's STI and the limitations of the monitor you're
> > using.
> > 
> > -phil
> > 
> > 
> > 
> > On Mon, 3 Dec 2001 joel.soete@freebel.net wrote:
> > 
> > > Hi all,
> > >
> > > The kernel 2.4.16-pa10 run roughtly on my B180 (not yet tested on
> > 712)
> > > But STI console semms broken:
> > > A large banner with "INVALID SCAN FREQ." in the middle of the
> screen
> > and in
> > > background something like parasitical tv reception (white line
> > scanning
> > > screen)... After some minutes it stop?
> > > Thanks in advance for help,
> > >         Joel
> > >
> > > -------------------------------------------------
> > > This mail sent through Tiscalinet Webmail
> (http://webmail.tiscali.be)
> > >
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > >
> > 
> > -- 
> >
> ===============================================================================
> > 
> > Phil Anderson
> > UNIX Systems Administrator
> > andersop@neverland.ncssm.edu
> > The_13th_Ewok@hotmail.com
> > 
> > "Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson
> > 
> > 
> > 
> 
> 
> -------------------------------------------------
> This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)
> 


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ntpdate isn't working on paer.  from the strace:

socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4
fcntl(4, F_SETFL, O_RDONLY|O_NONBLOCK)  = 0
rt_sigaction(SIGALRM, {0x287a2, [], 0}, {SIG_DFL}, 8) = 0
setitimer(ITIMER_REAL, {it_interval={0, 200000}, it_value={0, 100000}}, NULL) = 0
setpriority(PRIO_PROCESS, 0, -12)       = 0
poll([{fd=4, events=POLLIN}], 1, 60000) = 0
poll( <unfinished ...>

anyone want to spend some time debugging this?  i'd bug the debian
maintainer, but i hear he's not very sympathetic towards hppa.

-- 
Revolutions do not require corporate support.



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Hi all,

Using make menuconfig to rebuild the last 2.4.16-pa12 I just discover an option
for kdb (help refer specificaly to PA-Risc arhitecture).
Is there already something alvailable?

Thanks to all for your great job,
        Joel

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Subject: [parisc-linux] 2.4.16-pa15 still POWERFAIL(was 2.4.16-pa12 Power failled)
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Hi all,

Just to report that the problem persit on my B180 (even thought that changes was
made on sym53c8xx but I do know if its regarding this problem).

Joel

Quoting joel.soete@freebel.net:

> Hi all,
> 
> Sti consol is Ok now.
> 
> But receive on consol how many "POWERFAIL INTERRUPTION".
> I beleive it comes from scsi dirver sym53c8xx but not sure.
> 
> Thanks for all great job,
>         Joel
> 
> Quoting joel.soete@freebel.net:
> 
> > You have right, I forget to mentionned that the screen was an HP
> model
> > A4575A
> > with a selected resolution of 1280*1024 which works fine till now
> with
> > previous
> > kernel 2.4.9 and 2.4.14.
> > 
> > So what should be the right resolution?
> > 
> > Joel
> > 
> > Quoting Phil Anderson <andersop@neverland.ncssm.edu>:
> > 
> > > Hi.
> > > 
> > > This invalid scan problem suggests to me that the box is putting
> out
> > a
> > > resolution/frequency that the monitor cannot support. The banner in
> > the
> > > muddle of the screen is a monitor on-screen-display error. I don't
> > know
> > > about B180's but on my 712 this happened. In the boot loader
> firmware
> > > you
> > > should be able to select resolutions -- I booted it on another
> > monitor,
> > > lovered the frequency and resolution, then switched back to the
> first
> > > monitor. So, i don't think that's a problem with the kernel, rather
> > the
> > > settings of the box's STI and the limitations of the monitor you're
> > > using.
> > > 
> > > -phil
> > > 
> > > 
> > > 
> > > On Mon, 3 Dec 2001 joel.soete@freebel.net wrote:
> > > 
> > > > Hi all,
> > > >
> > > > The kernel 2.4.16-pa10 run roughtly on my B180 (not yet tested on
> > > 712)
> > > > But STI console semms broken:
> > > > A large banner with "INVALID SCAN FREQ." in the middle of the
> > screen
> > > and in
> > > > background something like parasitical tv reception (white line
> > > scanning
> > > > screen)... After some minutes it stop?
> > > > Thanks in advance for help,
> > > >         Joel
> > > >
> > > > -------------------------------------------------
> > > > This mail sent through Tiscalinet Webmail
> > (http://webmail.tiscali.be)
> > > >
> > > > _______________________________________________
> > > > parisc-linux mailing list
> > > > parisc-linux@lists.parisc-linux.org
> > > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > > >
> > > 
> > > -- 
> > >
> >
> ===============================================================================
> > > 
> > > Phil Anderson
> > > UNIX Systems Administrator
> > > andersop@neverland.ncssm.edu
> > > The_13th_Ewok@hotmail.com
> > > 
> > > "Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson
> > > 
> > > 
> > > 
> > 
> > 
> > -------------------------------------------------
> > This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)
> > 
> 
> 
> -------------------------------------------------
> This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)
> 
> 


-------------------------------------------------
This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)



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Hello parisc-linux,

After reading about Joerg Hartmann's success with the graphics console,
I was wondering what was still required to make X run on my 720. I
really want to put my big ole 19" grayscale monitor to proper use. :-)

Regards,

Albert

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Subject: [parisc-linux] Re: groff build on hppa
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On Tue, Dec 04, 2001 at 01:44:45PM +0000, Colin Watson wrote:
> Hi,
> 
> Does anyone know what's up with the groff build on hppa? gcc has
> segfaulted on both 1.17.2-10 and 1.17.2-11, and I can reproduce this on
> paer. The function it dies on hasn't changed since earlier releases
> where hppa didn't have a problem.
> 
> Is there any workaround? I'd rather not have to change groff at this
> stage if I can avoid it.

Builds for me with -O1 rather than -O2 in debian/rules, if that is
any help.

Richard




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Subject: Re: [parisc-linux] 2.4.16-pa15 still POWERFAIL(was 2.4.16-pa12 Power failled)
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On Wed, Dec 05, 2001 at 11:22:17AM +0100, joel.soete@freebel.net wrote:
> Hi all,
> 
> Just to report that the problem persit on my B180 (even thought that changes was
> made on sym53c8xx but I do know if its regarding this problem).

This is a bit of debug from my a500, 2.4.16-pa13

request_irq(66, 000000001037fd90, 0x0, IO-SAPIC00-L1, 000000001009bc58)
request_irq(66, 000000001037c590, 0x0, powerfail, 0000000000000000)
request_irq(129, 0000000010374ed0, 0x4000000, sym53c8xx, 000000001fe98000)
iosapic_interrupt(): irq 66 line 1 eoi fffffffffed30840, irq_num 129
POWERFAIL INTERRUPTION !

Don't claim to understand this, but it looks like "powerfail" has
requested the wrong irq?

Richard




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Subject: Re: [parisc-linux] Re: groff build on hppa
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> Builds for me with -O1 rather than -O2 in debian/rules, if that is
> any help.

This is a known bug with the compiler... .building with
-fno-strength-reduce works around this bug.

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/



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On Wed, Dec 05, 2001 at 08:19:39AM -0800, Randolph Chung wrote:
> > Builds for me with -O1 rather than -O2 in debian/rules, if that is
> > any help.
> 
> This is a known bug with the compiler... .building with
> -fno-strength-reduce works around this bug.

So would there be objections to me doing a special build on hppa with
the CFLAGS/CXXFLAGS hacked, given that there are three days left, or do
I have to upload again?

-- 
Colin Watson                                  [cjwatson@flatline.org.uk]



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Dear Sir/Madam


PA-ONLINE.COM $800



This is a valuable domain - there are only around 1000 2 - letter
combination "online" domains. Most sell over $1000

I am a domain name broker and have been tracking the domain name
PA-ONLINE.COM which expired and became available for a very short period.
I registered it immediately that it became available on behalf of a
client. However on contacting this client a short while ago to notify her
of this successful registration, she informed me that she will not be
proceeding with her venture. If you have an interest in acquiring this
domain, please contact me at your
earliest convenience. I will be contacting anyone who I feel may have an
interest and have
priced it for a quick sale.

All transactions are 100% secure and are transacted with the largest
e-commerce company on the net. The transfer process is extremely simple
and you can also be confident that with Namegiant.com, you are dealing
with a reputable company and will receive all the
assistance and support that you may require throughout any transfer
process - and beyond. 
 
If this email is of no interest, I apologise for this intrusion and can
assure you, you will not be mailed again. This is a one-off approach
because we felt this development could be of genuine interest to you and
your company. If it isn't, once again, please let me
convey our sincere apologies.
 
Kind regards,

Richard
Sales
Namegiant.com 



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Subject: Re: [parisc-linux] Re: groff build on hppa
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> So would there be objections to me doing a special build on hppa with
> the CFLAGS/CXXFLAGS hacked, given that there are three days left, or do
> I have to upload again?

Please make the appropriate source changes and make another upload.
Source-hacks that don't end up in the archive are considered very bad
practice.

There's a possible patch to fix this problem. I'm verifying this with
upstream at the moment.

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/



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Subject: Re: [parisc-linux] 2.4.16-pa15 still POWERFAIL(was 2.4.16-pa12 Power failled)
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Richard Hirst wrote:
> On Wed, Dec 05, 2001 at 11:22:17AM +0100, joel.soete@freebel.net wrote:
> This is a bit of debug from my a500, 2.4.16-pa13
> 
> request_irq(66, 000000001037fd90, 0x0, IO-SAPIC00-L1, 000000001009bc58)
> request_irq(66, 000000001037c590, 0x0, powerfail, 0000000000000000)
> request_irq(129, 0000000010374ed0, 0x4000000, sym53c8xx, 000000001fe98000)
> iosapic_interrupt(): irq 66 line 1 eoi fffffffffed30840, irq_num 129
> POWERFAIL INTERRUPTION !
> 
> Don't claim to understand this, but it looks like "powerfail" has
> requested the wrong irq?

Uhm. looks like a shared IRQ. that explains why I see it when
the lan is ifconfig'd instead. Does powerfail need an exclusive IRQ
in the CPU IRQ domain?

I never had the impression any of the HP9000 servers support
a soft-power switch. Many of the older servers did support "Host
powerfail" - but everything shipped since K-class does not.
I think we will need to figure out how to disable this for PAT boxes
and for DKR-class.

This reminds me:
   For PAT PDC boxes, we need to write a "PAT Event Handler"
which has exclusive IRQ on CPU EIRR bit 19 (numbered bass ackwards).
"we" means someone in HP. I don't think any of the documentation
for PAT has been published (or will be published anytime soon *sigh*).

grant



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Hi "richard",

"NAMEGIANT" wrote:
> Dear Sir/Madam
> 
> PA-ONLINE.COM $800
> 
> This is a valuable domain - there are only around 1000 2 - letter
> combination "online" domains. Most sell over $1000

Wow. cool. Perhaps you can just donate this to Debian (a non-profit Org)
and take the $800 tax deduction?

(And let me know what the IRS thinks of that too..I'd like
to do the same ;^)

grant



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[ old news - cleaning out my inbox ]

Randolph Chung wrote:
> Looks like -pa12 enabled some #if 0 code in arch/parisc/mm/init.c that
> is causing things to die. Both Grant and I saw ifconfig abort when
> the free_initmem code was enabled. Reverting back to 1.43 worked for
> me...

Fixed. my bad. removed __init in PCI config space code path.

FYI, IOAQ pointed at the culprit: lba_device_present()
Should make debugging this kind of problem easy.

grant



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On Wed, Dec 05, 2001 at 04:18:53AM +0000, Matthew Wilcox wrote:
> 
> ntpdate isn't working on paer.  from the strace:
> 
> socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4
> fcntl(4, F_SETFL, O_RDONLY|O_NONBLOCK)  = 0
> rt_sigaction(SIGALRM, {0x287a2, [], 0}, {SIG_DFL}, 8) = 0
> setitimer(ITIMER_REAL, {it_interval={0, 200000}, it_value={0, 100000}}, NULL) = 0
> setpriority(PRIO_PROCESS, 0, -12)       = 0
> poll([{fd=4, events=POLLIN}], 1, 60000) = 0
> poll( <unfinished ...>
> 
> anyone want to spend some time debugging this?  i'd bug the debian
> maintainer, but i hear he's not very sympathetic towards hppa.

That poll call should have been interrupted by SIGALRM after about 100ms.
time_t is long, so I guess we need a wrapper for setitimer()/getitimer().

Richard




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The appended patch adds syscall wrappters to fix interval timers on
wide kernels.  This fixes ntpdate, the silent scp status bar, and
maybe (untested) FTP.  Unfortunately 'init' started failing
intermittently.  Sometimes when I boot into init state 1 it works.

The symptom is an infinite loop type 15 fault in init which is
really in ld.so.1.  The last function called is _dl_important_hwcaps.
The interupt instruction doesn't match any in ld.so.1 near the
apparent fault location so that's a mystery.

If I boot with init=/sbin/sash that works and if I exec /sbin/init
from there it works too.

I can't see any obvious connection between a couple of syscall wrappers
and this problem -- maybe someone else will...

	-P

Index: arch/parisc/kernel/syscall.S
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/syscall.S,v
retrieving revision 1.73
diff -u -r1.73 syscall.S
--- arch/parisc/kernel/syscall.S	2001/11/30 23:17:25	1.73
+++ arch/parisc/kernel/syscall.S	2001/12/05 17:46:41
@@ -465,8 +465,8 @@
 	ENTRY_SAME(syslog)
 	/* even though manpage says struct timeval contains longs, ours has
 	 * time_t and suseconds_t -- both of which are safe wide/narrow */
-	ENTRY_SAME(setitimer)
-	ENTRY_SAME(getitimer)	/* 105 */
+	ENTRY_DIFF(setitimer)
+	ENTRY_DIFF(getitimer)	/* 105 */
 	ENTRY_SAME(capget)
 	ENTRY_SAME(capset)
 	ENTRY_DIFF(pread)
Index: arch/parisc/kernel/sys_parisc32.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/sys_parisc32.c,v
retrieving revision 1.25
diff -u -r1.25 sys_parisc32.c
--- arch/parisc/kernel/sys_parisc32.c	2001/11/30 23:17:25	1.25
+++ arch/parisc/kernel/sys_parisc32.c	2001/12/05 17:46:42
@@ -668,6 +668,64 @@
     return do_sys_settimeofday(tv ? &ktv : NULL, tz ? &ktz : NULL);
 }
 
+struct	itimerval32 {
+	struct	timeval32 it_interval;	/* timer interval */
+	struct	timeval32 it_value;	/* current value */
+};
+
+asmlinkage long sys32_getitimer(int which, struct itimerval32 *ov32)
+{
+	int error = -EFAULT;
+	struct itimerval get_buffer;
+	extern int do_getitimer(int which, struct itimerval *value);
+
+	if (ov32) {
+		error = do_getitimer(which, &get_buffer);
+		if (!error) {
+			struct itimerval32 gb32;
+			gb32.it_interval.tv_sec = get_buffer.it_interval.tv_sec;
+			gb32.it_interval.tv_usec = get_buffer.it_interval.tv_usec;
+			gb32.it_value.tv_sec = get_buffer.it_value.tv_sec;
+			gb32.it_value.tv_usec = get_buffer.it_value.tv_usec;
+			if (copy_to_user(ov32, &gb32, sizeof(gb32)))
+				error = -EFAULT; 
+		}
+	}
+	return error;
+}
+
+asmlinkage long sys32_setitimer(int which, struct itimerval32 *v32,
+			      struct itimerval32 *ov32)
+{
+	struct itimerval set_buffer, get_buffer;
+	struct itimerval32 sb32, gb32;
+	extern int do_setitimer(int which, struct itimerval *value, struct itimerval *ov32);
+	int error;
+
+	if (v32) {
+		if(copy_from_user(&sb32, v32, sizeof(sb32)))
+			return -EFAULT;
+
+		set_buffer.it_interval.tv_sec = sb32.it_interval.tv_sec;
+		set_buffer.it_interval.tv_usec = sb32.it_interval.tv_usec;
+		set_buffer.it_value.tv_sec = sb32.it_value.tv_sec;
+		set_buffer.it_value.tv_usec = sb32.it_value.tv_usec;
+	} else
+		memset((char *) &set_buffer, 0, sizeof(set_buffer));
+
+	error = do_setitimer(which, &set_buffer, ov32 ? &get_buffer : 0);
+	if (error || !ov32)
+		return error;
+
+	gb32.it_interval.tv_sec = get_buffer.it_interval.tv_sec;
+	gb32.it_interval.tv_usec = get_buffer.it_interval.tv_usec;
+	gb32.it_value.tv_sec = get_buffer.it_value.tv_sec;
+	gb32.it_value.tv_usec = get_buffer.it_value.tv_usec;
+	if (copy_to_user(ov32, &gb32, sizeof(gb32)))
+		return -EFAULT; 
+	return 0;
+}
+
 struct rusage32 {
         struct timeval32 ru_utime;
         struct timeval32 ru_stime;
@@ -923,7 +981,7 @@
 #define ROUND_UP(x,a)	((__typeof__(x))(((unsigned long)(x) + ((a) - 1)) & ~((a) - 1)))
 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
 static int
-filldir32 (void *__buf, const char *name, int namlen, off_t offset, ino_t ino,
+filldir32 (void *__buf, const char *name, int namlen, loff_t offset, ino_t ino,
 	   unsigned int d_type)
 {
 	struct linux32_dirent * dirent;
@@ -983,7 +1041,7 @@
 }
 
 static int
-fillonedir32 (void * __buf, const char * name, int namlen, off_t offset, ino_t ino,
+fillonedir32 (void * __buf, const char * name, int namlen, loff_t offset, ino_t ino,
 	      unsigned int d_type)
 {
 	struct readdir32_callback * buf = (struct readdir32_callback *) __buf;



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On Helge's suggestion I stopped freeing bootmem, and the problem
no longer manifests.  No more time to work on it.  I won't commit
the syscall wrapper patch for now.

	-P



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Subject: Re: [parisc-linux] itimer/ntpdate 64-bit patch
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On Wed, Dec 05, 2001 at 11:31:02AM -0700, Paul Bame wrote:
> 
> On Helge's suggestion I stopped freeing bootmem, and the problem
> no longer manifests.  No more time to work on it.  I won't commit
> the syscall wrapper patch for now.

I tried zero-ing bootmem instead of freeing it, in the hope that I'd
get a more useful crash if it tried to execute code there, but it
didn't fail.  But then, I didn't try freeing bootmem with the itimer
wrapper, so maybe my box doesn't have the problem anyway.

Richard




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> > 
> > ntpdate isn't working on paer.  from the strace:
> > 
> > socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4
> > fcntl(4, F_SETFL, O_RDONLY|O_NONBLOCK)  = 0
> > rt_sigaction(SIGALRM, {0x287a2, [], 0}, {SIG_DFL}, 8) = 0
> > setitimer(ITIMER_REAL, {it_interval={0, 200000}, it_value={0, 100000}}, NULL) = 0
> > setpriority(PRIO_PROCESS, 0, -12)       = 0
> > poll([{fd=4, events=POLLIN}], 1, 60000) = 0
> > poll( <unfinished ...>
> > 
> > anyone want to spend some time debugging this?  i'd bug the debian
> > maintainer, but i hear he's not very sympathetic towards hppa.
> 
> That poll call should have been interrupted by SIGALRM after about 100ms.
> time_t is long, so I guess we need a wrapper for setitimer()/getitimer().
> 
> Richard

Could there be other long issues lurking?
A hidden assumption somewhere?

I guess my questions would be: 
Are wide/narrow wrapper issues ferreted out one by one?

c.



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Subject: [parisc-linux] 2.4.16-pa16 Solves POWERFAIL (was: 2.4.16-pa15 still POWERFAIL)
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The boot seems Ok now.

Congratulation,
        Joel

Quoting joel.soete@freebel.net:

> Hi all,
> 
> Just to report that the problem persit on my B180 (even thought that
> changes was
> made on sym53c8xx but I do know if its regarding this problem).
> 
> Joel
> 
> Quoting joel.soete@freebel.net:
> 
> > Hi all,
> > 
> > Sti consol is Ok now.
> > 
> > But receive on consol how many "POWERFAIL INTERRUPTION".
> > I beleive it comes from scsi dirver sym53c8xx but not sure.
> > 
> > Thanks for all great job,
> >         Joel
> > 
> > Quoting joel.soete@freebel.net:
> > 
> > > You have right, I forget to mentionned that the screen was an HP
> > model
> > > A4575A
> > > with a selected resolution of 1280*1024 which works fine till now
> > with
> > > previous
> > > kernel 2.4.9 and 2.4.14.
> > > 
> > > So what should be the right resolution?
> > > 
> > > Joel
> > > 
> > > Quoting Phil Anderson <andersop@neverland.ncssm.edu>:
> > > 
> > > > Hi.
> > > > 
> > > > This invalid scan problem suggests to me that the box is putting
> > out
> > > a
> > > > resolution/frequency that the monitor cannot support. The banner
> in
> > > the
> > > > muddle of the screen is a monitor on-screen-display error. I
> don't
> > > know
> > > > about B180's but on my 712 this happened. In the boot loader
> > firmware
> > > > you
> > > > should be able to select resolutions -- I booted it on another
> > > monitor,
> > > > lovered the frequency and resolution, then switched back to the
> > first
> > > > monitor. So, i don't think that's a problem with the kernel,
> rather
> > > the
> > > > settings of the box's STI and the limitations of the monitor
> you're
> > > > using.
> > > > 
> > > > -phil
> > > > 
> > > > 
> > > > 
> > > > On Mon, 3 Dec 2001 joel.soete@freebel.net wrote:
> > > > 
> > > > > Hi all,
> > > > >
> > > > > The kernel 2.4.16-pa10 run roughtly on my B180 (not yet tested
> on
> > > > 712)
> > > > > But STI console semms broken:
> > > > > A large banner with "INVALID SCAN FREQ." in the middle of the
> > > screen
> > > > and in
> > > > > background something like parasitical tv reception (white line
> > > > scanning
> > > > > screen)... After some minutes it stop?
> > > > > Thanks in advance for help,
> > > > >         Joel
> > > > >
> > > > > -------------------------------------------------
> > > > > This mail sent through Tiscalinet Webmail
> > > (http://webmail.tiscali.be)
> > > > >
> > > > > _______________________________________________
> > > > > parisc-linux mailing list
> > > > > parisc-linux@lists.parisc-linux.org
> > > > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > > > >
> > > > 
> > > > -- 
> > > >
> > >
> >
> ===============================================================================
> > > > 
> > > > Phil Anderson
> > > > UNIX Systems Administrator
> > > > andersop@neverland.ncssm.edu
> > > > The_13th_Ewok@hotmail.com
> > > > 
> > > > "Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson
> > > > 
> > > > 
> > > > 
> > > 
> > > 
> > > -------------------------------------------------
> > > This mail sent through Tiscalinet Webmail
> (http://webmail.tiscali.be)
> > > 
> > 
> > 
> > -------------------------------------------------
> > This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)
> > 
> > 
> 
> 
> -------------------------------------------------
> This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)
> 
> 


-------------------------------------------------
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Hi, I'm once again trying to get my C180 booted, and I get a HPMC most of
the way through boot.  I've got the entire boot log, but it's rather long
so it's not attached.  I can make it available if that would be usefull.
	Nick





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Subject: Re: [parisc-linux] Trying C180/current CVS again
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nick@snowman.net wrote:
> Hi, I'm once again trying to get my C180 booted, and I get a HPMC most of
> the way through boot.  I've got the entire boot log, but it's rather long
> so it's not attached.  I can make it available if that would be usefull.

Yes - it would be useful. Please just post a URL to it if you can.

grant



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Thanks, I'm already talking to a few ppl.  I'll post any usefull info
	Nick

On Thu, 6 Dec 2001, Grant Grundler wrote:

> nick@snowman.net wrote:
> > Hi, I'm once again trying to get my C180 booted, and I get a HPMC most of
> > the way through boot.  I've got the entire boot log, but it's rather long
> > so it's not attached.  I can make it available if that would be usefull.
> 
> Yes - it would be useful. Please just post a URL to it if you can.
> 
> grant
> 




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Debian woody is in the throes of freeze and there's no official gdb
for hppa yet.  there are patches in our cvs to make a gdb snapshot from
20010307 work, but afaik nothing's been merged upstream.  any volunteers?
this is really important.

-- 
Revolutions do not require corporate support.



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In article <20011207182311.K806@parcelfarce.linux.theplanet.co.uk> you wrote:

> Debian woody is in the throes of freeze and there's no official gdb
> for hppa yet.  there are patches in our cvs to make a gdb snapshot from
> 20010307 work, but afaik nothing's been merged upstream.  any volunteers?
> this is really important.

I'll probably start playing with this late this weekend (after some postfix
work that I promised someone I'd finish), if noone else beats me to it.

lamont



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Subject: [parisc-linux] KDE or GNOME..???
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I have looked in 

ftp://ftp.debian.org/debian/dists/unstable/main/binary-hppa/

for a working version of a desktop and found that the only thing that has
anything in it is the list!! The dir's where one would expect to find what
one is seeking is empty!!! Heck they all are!~~???  What the heck, over?? 
Where is all the programs for this new version of Debian GNU/Linux hiding
and why???  I'm no expert by any means but I'm sure I could see it if it was
where it belongs... Who owns and runs this site anyhow?? and how does one
reach out to someone that knows what going here??

Grats,

Dave





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Dave Nyberg writes...

> 
> I have looked in 
> 
> ftp://ftp.debian.org/debian/dists/unstable/main/binary-hppa/
> 
> for a working version of a desktop and found that the only thing that has
> anything in it is the list!! The dir's where one would expect to find what
> one is seeking is empty!!! Heck they all are!~~???  What the heck, over?? 

All recent debian packages are kept in the package pool now. See,

ftp://ftp.debian.org/debian/pool/

Use dselect or another frontend to browse packages.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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Hello PA-RISC hackers.

What is the status of the 9000 D350 server machine and Linux.
Perhaps I have a chance to get one, and I saw, there are no
"UNDOCUMENTED DRIVERS", so I think Linux will run on that
machine. Is this correct ?

Any experiences here ?

With friendly regards
Christoph P.



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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From: Randolph Chung <tausq@debian.org>
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Subject: [parisc-linux] Tester needed for cdrecord on parisc-linux
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I just built cdrecord and friends for hppa-linux (there's a small patch
needed that has been submitted to the BTS). Unfortunately I do not have
a parisc-linux setup to test it with. Can someone here please give it a
try and report the results?

http://people.debian.org/~tausq/hppa/
	cdrecord_1.10-2_hppa.deb 
	mkisofs_1.10-2_hppa.deb 
	cdda2wav_1.10-2_hppa.deb 

If you are not familiar with CD-writing under Linux, you may want to
refer to:
http://www.linux.com/howto/CD-Writing-HOWTO.html

thanks!
randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/



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Subject: Re: [parisc-linux] Tester needed for cdrecord on parisc-linux
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I have an SCSI CDR in an external case at home.  It may take me a few
days to get around to it bringing it into work, though.  Hopefully
I'll be able to find all the right adaptors.

--
Brian S. Julin





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Subject: Re: [parisc-linux] Status of HP 9000 D350
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On Sun, Dec 09, 2001 at 08:01:36PM +0100, Christoph Plattner wrote:
> What is the status of the 9000 D350 server machine and Linux.

I tried it about two months ago and it seemed to work OK. You
need a recent kernel for the fast-wide SCSI card to be found.


Hamish
-- 
Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>



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Does this mean that fast/wide controllers on C110s would be recognized on
newer kernels, or is the C110 controller sufficiently older and
different?  I tried the 0.9.2 install CD a while ago and it would only
boot to the installer (where it then hung) if I removed ALL fast/wide
drives from the computer.  Otherwise it crashed in a fiery heap of burning
death (well, just crashed).

Dan

On Mon, 10 Dec 2001, Hamish Moffatt wrote:

> On Sun, Dec 09, 2001 at 08:01:36PM +0100, Christoph Plattner wrote:
> > What is the status of the 9000 D350 server machine and Linux.
> 
> I tried it about two months ago and it seemed to work OK. You
> need a recent kernel for the fast-wide SCSI card to be found.
> 
> 
> Hamish
> -- 
> Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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Subject: [parisc-linux] HP C180 again
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Hi, I got everything installed on my C180 thanks to several of you,
however I'm still haveing trouble.  I've appended the recommended
modifications to the kernel paramaters (sync=255 for the scsi), and I'm
still getting errors along these lines:
hp-2:/# rgrep syslogd *

Dumping Stack from 15fa4000 to 15fa4600:
4000 00000000 00000100 00000000 00000001 1029f180 00000000 00000000
ffffffff
4020 00000005 00000000 00000000 17fd45a0 00000000 00000000 ffffffff
1029c400
4040 1029c400 0001f941 10334000 15368000 17fd45a0 102a14b8 00000000
00000012
4060 00000000 00000000 80000000 0000022c 0000022c 00000000 0000009c
0000022c
4080 00000000 16034000 16034000 00000000 00000000 00000000 15fa4098
15fa4098
40a0 00000000 1029e988 15fa40a8 15fa40a8 00000000 00000000 00000000
00000000
40c0 00000000 00000000 00000000 00000000 00000000 00000000 0000342a
15fa4000
40e0 1011cb2c 00000018 00000036 00000000 00000000 0001f869 0000002c
00001137
4100 000000be 000001a5 00000000 00000000 00000000 00000000 80000000
00000000
4120 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000001
4140 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4160 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
4180 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
41a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
41c0 fffffeff 00000000 fffffeff 00000000 102a01a0 ffffffff ffffffff
ffffffff
41e0 ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff
ffffffff
4200 ffffffff 000007b3 000007b3 00000400 00000400 ffffffff ffffffff
ffffffff
4220 ffffffff ffffffff ffffffff 00006772 65700000 72000000 00000000
00000000
4240 00000000 10080000 00000000 00000000 00000000 00000000 00000000
0002eb38
4260 00011b77 00034000 00001447 00032bc0 00000000 00004800 00031b70
000325ab
4280 0000002e 2e000000 0002eb38 0001d800 0002f200 0002eb38 00000000
0009cd64
42a0 00014000 4017fe70 00000003 401059f0 ffffd503 000300c8 00050000
4019b000
42c0 00000003 0002eb38 4019b000 00000000 faf007c0 401059fb 00000000
00000000
42e0 00000000 00000000 00000000 00000000 00000000 00000000 1029f010
00000001
4300 00000001 1014c12c 00000002 103308bc 1006c000 102a4600 102a4060
00000002
4320 00000000 00000000 0000004d 1029f010 00000001 102a1010 1028c010
102bb810
4340 1028c010 1013a540 102cd298 102a1010 00000000 00000000 1008a000
102a4600
4360 00000000 00000002 00000000 0000004d 1029f010 1008a000 102a4600
00000000
4380 00000002 00000000 00050000 00014000 00000000 cccccccd 00064000
aaaaaaab
43a0 3fe00000 00000000 412e8480 00000000 0004000e 1008b120 ffffff05
00000001
43c0 1028c010 1013a698 1009a600 102a1ed0 00000000 00000000 00000000
000000d4
43e0 00000000 000000d4 000000d4 000000d4 000000d4 000000d4 000000d4
000000d4
4400 400b95cf 400b95d3 000003d0 00000000 4019b000 15fa48c0 10106cf0
0000001e
4420 0f541222 000000d4 00034000 00000000 fff00000 40000000 00000000
00000000
4440 100cf300 15fa9060 17c7b920 00000000 00000000 00000000 15fa4454
00000000
4460 00000000 00000000 00000000 00000000 00000000 00000000 00000006
00000008
4480 ea92b889 417e2eca d553c441 828ae8c6 aaa78883 0515d18d 5539a455
0a5d1648
44a0 aa05fdf9 14cc99c2 547d4ea1 10107750 a88c2811 53a9b8fe 516ee571
a725c4ae
44c0 4018d2c4 0002eb38 401059f0 ffffd503 0002eb38 0002eb38 0000000a
00000020
44e0 ffffffff faf00670 4004655e 10107f80 00000000 000b6d28 ffffffff
00000000
4500 000300c0 0002eb38 4017fe70 faf00510 4017fe70 00000000 00001000
00000000
4520 0009f41e 00000000 00000000 10145520 0002eb38 00000003 0000000a
00050000
4540 faf00518 00000000 160d6a40 15f06d20 00000000 00000803 00000000
00000000
4560 000021a0 00000001 00000000 1013afe0 00000000 00000102 00000000
00000000
4580 0002eb38 faf00510 0002eb38 0002eb38 0002eb38 4019b000 00050000
ffffffea
45a0 160d6a40 00000000 3c14284a 00000000 00000000 0001442c 00057000
00030028
45c0 faf00510 faf00510 0000002f 00000001 00000001 0002eb38 0002eb38
00000003
45e0 faf00518 00000000 160d6a40 15f06d20 00028990 00000998 00001934
00000007

Kernel Fault: Code=26 regs=15fa4600 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 000000d4 1018fa80 160d6a40
r4-7     ffffffea 00050000 00000000 4019b000
r8-11    00050000 00000000 faf00510 160d6a60
r12-15   0002eb38 00000000 00000ff8 00000001
r16-19   0002eb38 0009cd64 00014000 18000000
r20-23   15f06d20 00000002 00000001 160d6a60
r24-27   00050000 00000000 4019b000 1028c010
r28-31   160d6a40 00000000 15fa4600 1013afe0
sr0-3    00000000 000000d4 00000000 000000d4
sr4-7    00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1025b84c 1025b850
 IIR: 0f221021    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 15fa4000 CR31: 10338000
 ORIG_R28: 15fa4740



	Thanks
		Nick





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Hi all,

I use to work with a telnet connection to my hppa linux box.
And I just notice that if I do a ls -al in a directory containing many soft
links the telnet session stop with "connection close by foreign hosts" (and not
with a simple ls)?

(I just do a apt-get dist-uprade but nothing has to be done. Also I assume to be
up-to-date)

Thanks in advance for advice,
        Joel

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Subject: Re: [parisc-linux] telnetd on hppa: strange behaviour?
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joel.soete@freebel.net wrote:
> 
> Hi all,
> 
> I use to work with a telnet connection to my hppa linux box.
> And I just notice that if I do a ls -al in a directory containing many soft
> links the telnet session stop with "connection close by foreign hosts" (and not
> with a simple ls)?
> 
> (I just do a apt-get dist-uprade but nothing has to be done. Also I assume to be
> up-to-date)
> 
> Thanks in advance for advice,
>         Joel

Get yourself a more recent kernel. That's a known problem with the
kernel on the 0.9.2 media.

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216



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Hi Nathan,

Sorry but once again I forgot to mention it (because I thought to a telnetd bug):
I experiment it with my last 2.4.16-pa16 (not the one in debian pool package) as
weel as with kernel 2.4.9-32 (this from the debian pool
kernel-image-2.4.9-32_82.1_hppa.deb package).
And I also forgot to mentioned that I just do some 2h ago a apt-get dist-upgrade
and "0 pkg upgraded, 0 newly installed, 0 to remove and 2 not upgraded". Also
may be too early uptodate?

Thanks for additional advises,
        Joel

Quoting Nathan Neulinger <nneul@umr.edu>:

> joel.soete@freebel.net wrote:
> > 
> > Hi all,
> > 
> > I use to work with a telnet connection to my hppa linux box.
> > And I just notice that if I do a ls -al in a directory containing many
> soft
> > links the telnet session stop with "connection close by foreign hosts"
> (and not
> > with a simple ls)?
> > 
> > (I just do a apt-get dist-uprade but nothing has to be done. Also I
> assume to be
> > up-to-date)
> > 
> > Thanks in advance for advice,
> >         Joel
> 
> Get yourself a more recent kernel. That's a known problem with the
> kernel on the 0.9.2 media.
> 
> -- Nathan
> 
> ------------------------------------------------------------
> Nathan Neulinger                       EMail:  nneul@umr.edu
> University of Missouri - Rolla         Phone: (573) 341-4841
> Computing Services                       Fax: (573) 341-4216
> 
> 


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Subject: Re: [parisc-linux] telnetd on hppa: strange behaviour?
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Xref: news.gmane.org gmane.linux.ports.parisc:13285

Hmm... never seen that symptom except with the early kernels, which
obviously isn't the case here.

I'm not familiar with 'dist-upgrade', but I typically run 'apt-get
update' then 'apt-get upgrade'. 

-- Nathan

joel.soete@freebel.net wrote:
> 
> Hi Nathan,
> 
> Sorry but once again I forgot to mention it (because I thought to a telnetd bug):
> I experiment it with my last 2.4.16-pa16 (not the one in debian pool package) as
> weel as with kernel 2.4.9-32 (this from the debian pool
> kernel-image-2.4.9-32_82.1_hppa.deb package).
> And I also forgot to mentioned that I just do some 2h ago a apt-get dist-upgrade
> and "0 pkg upgraded, 0 newly installed, 0 to remove and 2 not upgraded". Also
> may be too early uptodate?
> 
> Thanks for additional advises,
>         Joel
> 
> Quoting Nathan Neulinger <nneul@umr.edu>:
> 
> > joel.soete@freebel.net wrote:
> > >
> > > Hi all,
> > >
> > > I use to work with a telnet connection to my hppa linux box.
> > > And I just notice that if I do a ls -al in a directory containing many
> > soft
> > > links the telnet session stop with "connection close by foreign hosts"
> > (and not
> > > with a simple ls)?
> > >
> > > (I just do a apt-get dist-uprade but nothing has to be done. Also I
> > assume to be
> > > up-to-date)
> > >
> > > Thanks in advance for advice,
> > >         Joel
> >
> > Get yourself a more recent kernel. That's a known problem with the
> > kernel on the 0.9.2 media.
> >
> > -- Nathan
> >
> > ------------------------------------------------------------
> > Nathan Neulinger                       EMail:  nneul@umr.edu
> > University of Missouri - Rolla         Phone: (573) 341-4841
> > Computing Services                       Fax: (573) 341-4216
> >
> >
> 
> -------------------------------------------------
> This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)

-- 


------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216



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Randolph Chung wrote:
> 
> I just built cdrecord and friends for hppa-linux (there's a small patch
> needed that has been submitted to the BTS). Unfortunately I do not have
> a parisc-linux setup to test it with. Can someone here please give it a
> try and report the results?
> 
> http://people.debian.org/~tausq/hppa/
>         cdrecord_1.10-2_hppa.deb
>         mkisofs_1.10-2_hppa.deb
>         cdda2wav_1.10-2_hppa.deb
> 
> If you are not familiar with CD-writing under Linux, you may want to
> refer to:
> http://www.linux.com/howto/CD-Writing-HOWTO.html
> 
> thanks!
> randolph
> --
> Debian Developer <tausq@debian.org>
> http://www.TauSq.org/
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

I've got one sitting next to my j200 that I recently disconnected from
my pc. Will give it a shot sometime in the next couple days.

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216



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I did a CVS update yesterday and tried to build a kernel today, using
the same .config from my last successful build (2.4.9-pa78).

After a "make clean", "make depend" is failing with the error below.
I've done a "make menuconfig" and things seem to be OK.

Anyone have any suggestions?

-chuck



make[6]: Entering directory `/usr/src/linux/drivers/char/joystick'
/usr/src/linux/scripts/mkdep -D__KERNEL__ -I/usr/src/linux/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer
-fno-strict-aliasing -fno-common -D__linux__ -pipe -fno-strength-reduce
-mno-space-regs -mfast-indirect-calls -mdisable-fpregs
-ffunction-sections -march=1.1 -mschedule=7100LC  -- a3d.c adi.c
amijoy.c analog.c cobra.c cs461x.c db9.c emu10k1-gp.c gamecon.c
gameport.c gf2k.c grip.c iforce.c interact.c lightning.c magellan.c
ns558.c pcigame.c serio.c serport.c sidewinder.c spaceball.c spaceorb.c
stinger.c tmdc.c turbografx.c warrior.c > .depend
make[6]: Leaving directory `/usr/src/linux/drivers/char/joystick'
make -C mwave fastdep
make: *** mwave: No such file or directory.  Stop.
make: Entering an unknown directorymake: Leaving an unknown
directorymake[5]: *** [_sfdep_mwave] Error 2
make[5]: Leaving directory `/usr/src/linux/drivers/char'
make[4]: *** [fastdep] Error 2
make[4]: Leaving directory `/usr/src/linux/drivers/char'
make[3]: *** [_sfdep_char] Error 2
make[3]: Leaving directory `/usr/src/linux/drivers'
make[2]: *** [fastdep] Error 2
make[2]: Leaving directory `/usr/src/linux/drivers'
make[1]: *** [_sfdep_drivers] Error 2
make[1]: Leaving directory `/usr/src/linux'
make: *** [dep-files] Error 2



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Subject: Re: [parisc-linux] 2.4.16-pa16 (from CVS) fails on "make depend"
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Chuck

Did you do a 'make oldconfig' after copying in your old .config & before
anything else?

R.
PeteM

On Mon, 10 Dec 2001, Chuck Slivkoff wrote:

> I did a CVS update yesterday and tried to build a kernel today, using
> the same .config from my last successful build (2.4.9-pa78).
>
> After a "make clean", "make depend" is failing with the error below.
> I've done a "make menuconfig" and things seem to be OK.
>
> Anyone have any suggestions?
>
> -chuck
>
>
>
> make[6]: Entering directory `/usr/src/linux/drivers/char/joystick'
> /usr/src/linux/scripts/mkdep -D__KERNEL__ -I/usr/src/linux/include -Wall
> -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer
> -fno-strict-aliasing -fno-common -D__linux__ -pipe -fno-strength-reduce
> -mno-space-regs -mfast-indirect-calls -mdisable-fpregs
> -ffunction-sections -march=1.1 -mschedule=7100LC  -- a3d.c adi.c
> amijoy.c analog.c cobra.c cs461x.c db9.c emu10k1-gp.c gamecon.c
> gameport.c gf2k.c grip.c iforce.c interact.c lightning.c magellan.c
> ns558.c pcigame.c serio.c serport.c sidewinder.c spaceball.c spaceorb.c
> stinger.c tmdc.c turbografx.c warrior.c > .depend
> make[6]: Leaving directory `/usr/src/linux/drivers/char/joystick'
> make -C mwave fastdep
> make: *** mwave: No such file or directory.  Stop.
> make: Entering an unknown directorymake: Leaving an unknown
> directorymake[5]: *** [_sfdep_mwave] Error 2
> make[5]: Leaving directory `/usr/src/linux/drivers/char'
> make[4]: *** [fastdep] Error 2
> make[4]: Leaving directory `/usr/src/linux/drivers/char'
> make[3]: *** [_sfdep_char] Error 2
> make[3]: Leaving directory `/usr/src/linux/drivers'
> make[2]: *** [fastdep] Error 2
> make[2]: Leaving directory `/usr/src/linux/drivers'
> make[1]: *** [_sfdep_drivers] Error 2
> make[1]: Leaving directory `/usr/src/linux'
> make: *** [dep-files] Error 2
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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On Mon, Dec 10, 2001 at 05:39:52PM -0500, Chuck Slivkoff wrote:
> I did a CVS update yesterday and tried to build a kernel today, using
> the same .config from my last successful build (2.4.9-pa78).
> 
> After a "make clean", "make depend" is failing with the error below.
> I've done a "make menuconfig" and things seem to be OK.
> 
> Anyone have any suggestions?

are you using the `approved' .cvsrc in build-tools?  seems you're missing
-P to your update command.

-- 
Revolutions do not require corporate support.



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Subject: [parisc-linux] console switching with C160 Hyperdrive option card
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I loaded up the 0.9.3-rc6 iso. Loaded great onto a C160. I have a
Hyperdrive optional graphics card that my A4033A monitor is attached to.
The main Gecko GSC core graphics is not used. I can get a serial console
with no problem.

How do I tell palo to use the Hyperdrive card?=20

I tried telling it console=3Dfb0, but never got anything. I tried telling
it sti=3D1, no luck there. Tried both.=20

Suggestions welcome !
--=20
James P. Kinney III   \Changing the mobile computing world/
President and COO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint =3D 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7=20



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On Tuesday 11 December 2001 03:55, James P. Kinney III wrote:
> I loaded up the 0.9.3-rc6 iso. Loaded great onto a C160. I have a
> Hyperdrive optional graphics card that my A4033A monitor is attached to.
> The main Gecko GSC core graphics is not used. I can get a serial console
> with no problem.
>
> How do I tell palo to use the Hyperdrive card?
>
> I tried telling it console=fb0, but never got anything. I tried telling
> it sti=1, no luck there. Tried both.
>
> Suggestions welcome !

Hi James,

sti=1 should be the right value if the stifb driver detects and supports your 
hyperdrive. Maybe you could post the boot-messages regarding your 
graphic cards (`dmesg | grep sti`) ?

Helge



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Hi Nathan,

According to apt-get man page the difference between upgrade and dist-upgrade
seems to me to be in the selection of more or less important packages:

man apt-get
...
       dist-upgrade
              dist-upgrade, in addition to performing  the  func
              tion  of upgrade, also intelligently handles chang
              ing dependencies with  new  versions  of  packages;
              apt-get  has  a "smart" conflict resolution system,
              and it will attempt to upgrade the  most  important
              packages  at  the expense of less important ones if
              necessary.  The /etc/apt/sources.list file contains
              a  list of locations from which to retrieve desired
              package files.

But I always forget to log stdout and sdterr of this command.
Do you know if it exist somewhere a log of dpkg actions (like
/var/adm/sw/sw....log of HPUX SD)?

        Joel

Quoting Nathan Neulinger <nneul@umr.edu>:

> Hmm... never seen that symptom except with the early kernels, which
> obviously isn't the case here.
> 
> I'm not familiar with 'dist-upgrade', but I typically run 'apt-get
> update' then 'apt-get upgrade'. 
> 
> -- Nathan
> 
> joel.soete@freebel.net wrote:
> > 
> > Hi Nathan,
> > 
> > Sorry but once again I forgot to mention it (because I thought to a
> telnetd bug):
> > I experiment it with my last 2.4.16-pa16 (not the one in debian pool
> package) as
> > weel as with kernel 2.4.9-32 (this from the debian pool
> > kernel-image-2.4.9-32_82.1_hppa.deb package).
> > And I also forgot to mentioned that I just do some 2h ago a apt-get
> dist-upgrade
> > and "0 pkg upgraded, 0 newly installed, 0 to remove and 2 not
> upgraded". Also
> > may be too early uptodate?
> > 
> > Thanks for additional advises,
> >         Joel
> > 
> > Quoting Nathan Neulinger <nneul@umr.edu>:
> > 
> > > joel.soete@freebel.net wrote:
> > > >
> > > > Hi all,
> > > >
> > > > I use to work with a telnet connection to my hppa linux box.
> > > > And I just notice that if I do a ls -al in a directory containing
> many
> > > soft
> > > > links the telnet session stop with "connection close by foreign
> hosts"
> > > (and not
> > > > with a simple ls)?
> > > >
> > > > (I just do a apt-get dist-uprade but nothing has to be done. Also
> I
> > > assume to be
> > > > up-to-date)
> > > >
> > > > Thanks in advance for advice,
> > > >         Joel
> > >
> > > Get yourself a more recent kernel. That's a known problem with the
> > > kernel on the 0.9.2 media.
> > >
> > > -- Nathan
> > >
> > > ------------------------------------------------------------
> > > Nathan Neulinger                       EMail:  nneul@umr.edu
> > > University of Missouri - Rolla         Phone: (573) 341-4841
> > > Computing Services                       Fax: (573) 341-4216
> > >
> > >
> > 
> > -------------------------------------------------
> > This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)
> 
> -- 
> 
> 
> ------------------------------------------------------------
> Nathan Neulinger                       EMail:  nneul@umr.edu
> University of Missouri - Rolla         Phone: (573) 341-4841
> Computing Services                       Fax: (573) 341-4216
> 
> 


-------------------------------------------------
This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)



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Subject: [parisc-linux] Re: 2.4.16-pa16 (from CVS) fails on "make depend"
Date: Tue, 11 Dec 2001 11:43:22 -0500
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The "make distclean" which Grant suggested below seems to have resolved
this.

Thanks Grant!


-------- Original Message --------
Subject: Re: [parisc-linux] 2.4.16-pa16 (from CVS) fails on "make
depend"
Date: Mon, 10 Dec 2001 22:38:01 -0700
From: Grant Grundler <grundler@puffin.external.hp.com>
To: Chuck Slivkoff <charles_slivkoff@hp.com>

Chuck Slivkoff wrote:
> I did a CVS update yesterday and tried to build a kernel today, using
> the same .config from my last successful build (2.4.9-pa78).

Chuck,
you went from 2.4.9 to 2.4.16...quite a jump.

> After a "make clean", "make depend" is failing with the error below.
> I've done a "make menuconfig" and things seem to be OK.
> 
> Anyone have any suggestions?

The other fellow is right, you need to run any variant of make config
(eg make oldconfig or menuconfig) in order to fix up CONFIG_XXX
options which will match the new kernel. Maybe you did that
and just forgot to mention it.

When I get paranoid, I save off the .config, make distclean, restore
the .config, make oldconfig, and continue on with the rest of the
usual steps.

hth,
grant



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Subject: [parisc-linux] 2.5 kernel and CVS -- opinions?
Date: Tue, 11 Dec 2001 09:44:56 -0700
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It's time to start tracking the 2.5 kernel at cvs.parisc-linux.org
and there are a few different ways to do it -- I'm looking for opinions.
My favorite option at the moment is 1A.  SPEAK UP BY FRIDAY because I'll
probably make CVS changes pretty soon after that.  I'll send a
HOWTO to the mailing list after the CVS changes are made.

The first decision:

    1. Start a separate 'linux-2.5' in CVS just like 'linux' with both
       an upstream branch and a development branch.  This is more manual
       perhaps, but using 'diff' and 'patch' and having 2.4 and 2.5 trees
       checked out all the time, it can accomplish the same things as #2.

    2. Add the 2.5 upstream and development branches to CVS 'linux'.
       IMO this is the most functional and flexible -- allowing us to
       use CVS to do the myriad of interesting 'diffs'.  CVS could also
       be used to keep single versions of 2.4/2.5 pa-specific files where
       no fork is required, but that will require some developers to acquire
       additional CVS expertise so I'm not sure whether to recommend that.
       2.4-only developers would not need to change their use model.  Not
       that it's an issue, but #2 requires less CVS disk space.

The second decision:

    Date-based CVS update on the trunk is broken (bugs filed -- no
    action for a long time).  It works fine on non-trunk branches.

    A. We've lived with this defect so far, don't change anything.
       If we choose this with #2 above, the only thing on the trunk
       is 2.4 development -- 2.5 devel date-based checkout will
       work fine.  However 2.4 devel date-based checkout will work
       less often than it does now.

    B. Move everything in CVS to non-trunk branches so we can use
       date-based CVS update.  This would cause another little change
       in how we use CVS.

    Option A is even more acceptable if we do either aggressive tagging
    (for example, each -paXX release gets tagged) or keep a fairly
    large set of the daily source tarballs.  IMO tagging is the "right"
    answer, but it's pretty slow due to CVS limitation or perhaps
    we could do a daily tagging from cron so nobody'd have to wait.



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Subject: Re: [parisc-linux] console switching with C160 Hyperdrive option
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Ah, Ha! Lots of sti stuff in dmesg output. All positive. Found
everything.=20

Grabbed a new kernel source from kernel.org and ran make oldconfig. I
think it uses the current running kernel for a starting point.

Looked at the .config file afterwards. No sti frame buffer configured.
Hmm.=20

More research. Current firmware is 2.1. Latest firmware from HP is 6.1.
And it "fixes" some 3rd  party graphics card problems.

As soon as I get a blank tape, I'll upgrade the firmware (scary
process!).

Did the sti framebuffer get compiled into the kernel on the 0.9.3-rc6
iso or am I missing something?

On Tue, 2001-12-11 at 03:50, Helge Deller wrote:
> On Tuesday 11 December 2001 03:55, James P. Kinney III wrote:
> > I loaded up the 0.9.3-rc6 iso. Loaded great onto a C160. I have a
> > Hyperdrive optional graphics card that my A4033A monitor is attached to=
.
> > The main Gecko GSC core graphics is not used. I can get a serial consol=
e
> > with no problem.
> >
> > How do I tell palo to use the Hyperdrive card?
> >
> > I tried telling it console=3Dfb0, but never got anything. I tried telli=
ng
> > it sti=3D1, no luck there. Tried both.
> >
> > Suggestions welcome !
>=20
> Hi James,
>=20
> sti=3D1 should be the right value if the stifb driver detects and support=
s your=20
> hyperdrive. Maybe you could post the boot-messages regarding your=20
> graphic cards (`dmesg | grep sti`) ?
>=20
> Helge
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>=20
--=20
James P. Kinney III   \Changing the mobile computing world/
President and COO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint =3D 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7=20



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"James P. Kinney III" writes...

> More research. Current firmware is 2.1. Latest firmware from HP is 6.1.
> And it "fixes" some 3rd  party graphics card problems.
> 
> As soon as I get a blank tape, I'll upgrade the firmware (scary
> process!).

IMHO, updating via bootp/tftp is the easiest way(assuming you have them 
setup). You can also burn the firmware image on a CDROM and boot from that. 
You can even boot it from a harddisk by putting it in the right place (using 
the right dd command).

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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I got my first HIL mouse motion today :-)

I expect to have the new HIL driver suite doing something useful
in the next several days.  Could someone contact me about how
to go about committing the work?  (CVS access would be easiest for
me.)  I'll also need help with the config menu system since it
and I have a long history of not getting along with each other
and I'd prefer not to engage in endless ml discussions about what
files should go where, so someone with dictatorial authority
should decide that for me :-)

I currently have it building outside the kernel tree entirely
as modules, so it should be a very clean addition.

In case anyone's interested, the modules I have written
and/or will soon write are as follows:

        +-- (planned) hp_sdc_beeper  +-- (planned) hil_hpux
        +-- hp_sdc_rtc               +-- (planned) hil_kbd
hp_sdc -+-- hp_sdc_mlc --- hil_mlc --+-- hil_ptr

hp_sdc allows sharing of the i8042 SDC between the other modules.
hil_mlc abstracts hil bus devices into serio's such that they
can be attached either to a tty or to a linux-input device driver.
hp_sdc_mlc emulates direct access to an MLC indirectly through the SDC,
thus if there are any systems with directly connected MLCs (either
by design or hackery) a raw_mlc module can be written for them.

hil_hpux would allow emulation of HPUX's userspace HIL access (I
seem to remember that HPUX had such an animal) for running old HPUX
closed-source binaries.

I could also use a hand from someone at HP about a couple peculiarities
I am currently forced to work around -- seems the i8042 doesn't
behave as documented in a couple of corner cases:

1) When APE is off and error reporting is 0, and you send a DHR with
timeout 0 the i8042 is not supposed to watchdog the command, but
it does anyway, flooding the machine with IRQs.

2) When APE is turned back on the i8042 reconfigures the loop even
if error reporting is turned on, which it is not supposed to do.

I imagine a few surreptitious register pokes in the right places
will smack it into line.  I also suspect that the docs I have
omit a few details that are present in docs for previous models,
but if I cannot solve the above two the workarounds aren't horribly
ugly.

I can e-mail anyone a tarball of the work-in-progress if they want to hose
up their system or just laugh at my gratuitous spinlocks :-)

Anyway, back to fun with tasklets.

Tnx,

--
Brian S. Julin




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[...]
> 
> But I always forget to log stdout and sdterr of this command.
> Do you know if it exist somewhere a log of dpkg actions (like
> /var/adm/sw/sw....log of HPUX SD)?
> 
>         Joel

No, but running your 'apt-get upgrade' or 'apt-get dist-upgrade' under
the 'script' program is a good way to record a complete log.

(Logging actions are being added to apt/dpkg e.g. for auditing but it's
got a fair way to go I think.)

For more info, see your friendly apt documentation.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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Subject: Re: [parisc-linux] 2.5 kernel and CVS -- opinions?
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Paul Bame wrote:
> It's time to start tracking the 2.5 kernel at cvs.parisc-linux.org
> and there are a few different ways to do it -- I'm looking for opinions.
> My favorite option at the moment is 1A.

I'm ok with 1A as well:
o *someday*, I hope the CVS date-based check out will get fixed.
o TAGs work and I'm ok with tag being used.
o We could TAG weekly (or monthly) and keep enough nightly
  checkout's to cover two or three tags. Or whatever we can
  afford for diskspace.


thanks!
grant



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"James P. Kinney III" wrote:
> Grabbed a new kernel source from kernel.org and ran make oldconfig. I
> think it uses the current running kernel for a starting point.

A) It definitelly does not. You either need to find the config file
from the CD or something else.
B) forget kernel.org. parisc tree is at cvs.parisc-linux.org or
   ftp.parisc-linux.org (nightly cvs snapshots). parisc isn't
   fully merged back into linus's tree.

> Looked at the .config file afterwards. No sti frame buffer configured.
> Hmm.=20

Looking arch/parisc/defconfig:
CONFIG_FB=y
CONFIG_FB_STI=y

you just ahd the wrong source tree.

> More research. Current firmware is 2.1. Latest firmware from HP is 6.1.
> And it "fixes" some 3rd  party graphics card problems.

It fixes alot more than just that.
I believe 2.1 is the original firmware shipped with the machine.
6.1 *will* disable PCI if anything other than an HP PCI grapchis
card is plugged into a PCI slot *and* you have an "old" Dino.

> As soon as I get a blank tape, I'll upgrade the firmware (scary
> process!).

Yes. But you can do it via LAN/bootp too.
Boot the update image just a a kernel image as described
in previous emails to this list (eg NFS root).
(Archive is at lists.parisc-linux.org)

grant



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Version 0.9.3 of PA-RISC Linux Released

On December 11, 2001 the PA-RISC Linux development community announced
version 0.9.3, the latest version of Linux for computers using Hewlett
Packard's PA-RISC processor. This release is the latest in a series
representing several years of work by developers in the Free Software
community including developers from The Debian Project, Hewlett Packard,
ESIEE, and Linuxcare.

Improvments in the 0.9.3 release include

Linux Kernel 2.4.9
SMP support 1-4 way
STI framebuffer graphics
Improved SCSI driver
EISA/ISA support
HP-UX compatibility support
Glibc 2.2.4
Latest Debian Installer
over 80% Debian packages available
X Windows System
Xinerama support
KDE and Gnome environments

The 0.9.3 release install CDROM images and related documentation can be
found at

http://parisc-linux.org/release-0.9/

Information about PA-RISC Linux is available at

http://parisc-linux.org/

Any questions or comments about the release should be directed to the
mailing list at

parisc-linux@parisc-linux.org

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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Hi palinuxers,

Hopefully you've seen the 0.9.3 announcement.

After much testing the 0.9.3 release candidate 6 was declared the final
0.9.3. So if you grabbed either of the -rc6 isos you already have the
right thing. The 0.9.3 isos are based on woody. If you have installed a
previous release and have a decent net connection there's no need to
reinstall, you can seamlessly upgrade using apt-get.

Also there is now an rsync server available, rsync.parisc-linux.org

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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On Tue, Dec 11, 2001 at 11:26:32PM -0700, Matt Taggart wrote:
> To: parisc-linux@parisc-linux.org
> From: Matt Taggart <taggart@carmen.fc.hp.com>
> Subject: [parisc-linux] 0.9.3-rc6 -> final, apt, and rsync
> Date: Tue, 11 Dec 2001 23:26:32 -0700
> 
> Hi palinuxers,
> 
> Hopefully you've seen the 0.9.3 announcement.
> 
> After much testing the 0.9.3 release candidate 6 was declared the final
> 0.9.3. So if you grabbed either of the -rc6 isos you already have the
> right thing. The 0.9.3 isos are based on woody. If you have installed a
> previous release and have a decent net connection there's no need to
> reinstall, you can seamlessly upgrade using apt-get.
CONFIRM: Yesterday evening I just did 
`apt-get update && apt-get upgrade && apt-get moo`
which took a while, but mostly just worked ;-)

I also ran dselect through `update, select, install, configure, remove` menus
to make sure that apt-* and dpkg-* are in sync.
(This might be habit -  I've been doing it since Bo/Rexx and it just seems to work ;-)

It seemed to clean up any rough edges that might have been accumulated over the
months ;-)

This was on a
cpu family      : PA-RISC 1.1d
cpu             : PA7100LC (PCX-L)
cpu MHz         : 100.000000
model           : 9000/715
model name      : Mirage 100


Next move is to see if I can compile & boot from kernel-source-2.4.16-hppa.tar.bz2
natively.

Outstanding work, people; Thank You all.

Richard - 
-- 
Unix:        Your gun, Your bullet, Your foot, Your choice.
M$-CE/ME/NT: Same as Unix, BUT: No choice, and We Aim Higher.
Have a nice day ;-) Richard Higson mailto:richard.higson@gt.owl.de



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Richard Higson writes...

> Next move is to see if I can compile & boot from kernel-source-2.4.16-hppa.ta
> r.bz2  natively.

FYI there are 2.4.16 hppa kernel-image packages in unstable, but don't let me
spoil your fun :)

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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I am using 2 HP9000 WOrkstatiosn at home. One HP900/720 system with CRX8 
 graphic card and
and a HP9000/735 with CRX48Z graphics system.

I would like to know if anyone has succeeded in running X Windows for 
PARISC Linux on
one of those machines?

By the way: How das the x-windows for PARISC Linux work. Does it access 
the graphics card
via the framebuffer device or directly?

Sven




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Hi Sven,

> I would like to know if anyone has succeeded in running X Windows for
> PARISC Linux on one of those machines?

Yes, some people did succed to get X running on these machines. Look at
http://mkhppa1.esiee.fr/list.html
If you have trouble, try to contact them directly.

> By the way: How das the x-windows for PARISC Linux work. Does it access
> the graphics card
> via the framebuffer device or directly?

If you want X, you need the framebuffer device. That's our only way for
the moment.

Good Luck, Thomas.
ESIEE Team



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I have test the PA-RISC Linux 0.9.3-RC6.
The test was successfully on the follow machine :

HP9000 710
HP9000 715 33MHz
HP9000 715 50 MHz
HP9000 715 64 MHz
HP9000 720
HP9000 750

All machines have installed with a serial HP 700/60 Terminal.

in the packages are a bug. by selecting with tasksel can the installation 
frozen. i have use unix-server, web-server and c-developer and it is not 
frozen. i have selected all packages and the installation is frozen.




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On Wednesday, 12. December 2001 14:19, you wrote:

> I have test the PA-RISC Linux 0.9.3-RC6.
> The test was successfully on the follow machine :
>
> HP9000 710
> HP9000 715 33MHz
> HP9000 715 50 MHz
> HP9000 715 64 MHz
> HP9000 720

The Installation on a 720 went smoothly.
But samba does not work.
The smbd dies imedietly without any logging / information, because of 
some problems with "the message database" .

regards
			Joerg
-- 
Joerg Hartmann
j.hartmann@reinarts.de



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Subject: Re: [parisc-linux] evms_vgscan crash hppa kernel ... continue
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Hi all,

I retry now with kernel 2.4.16-pa16 and evms cvs dated 2011-12-11 and
unfortunately it still crashes but at crash time I've got he following
interesting message to me:

--evms: Sector IO ioctl: Allocating sector buffer.
WARNING! Stack pointer and cr30 do not correspond!

.... a dump ...


Can some one explain me what it means and what can be the reason.
I post here the question because I see that it cames from
arch/parisc/kernel/traps.c but have no knowledge in the register naming for this
processor.

Thanks in advance for help,
        Joel


Quoting joel.soete@freebel.net:

> Quoting Matthew Wilcox <willy@debian.org>:
> 
> > On Wed, Nov 07, 2001 at 03:56:16PM +0100, joel.soete@freebel.net
> wrote:
> > > IASQ: 00000000 00000000 IAOQ: 1018c350 1018c354
> > >  IIR: 48fa0020    ISR: 00000000  IOR: faf00918
> > >  CPU:        0   CR30: 124fc000 CR31: 10348000
> > >  ORIG_R28: 124fc508
> > > 
> > > a "grep 1018c3 /boot/System.map"
> > > 1018c394 t evms_ioctl_cmd_get_minor
> > > 
> > > I would like to debug this by obtaining a core dump of the kernel
> > after the 
> > > reboot but I do not know how? (I did not find back the mail
> explaining
> > how to do 
> > > it in detail)
> > 
> > 1018c350 is before 1018c394, so it's actually in the previous
> function.
> 
> Well ... in System.map I found:
> 
> 1018bfc4 t evms_ioctl_cmd_get_logical_disk
> 1018c088 t evms_ioctl_cmd_get_logical_disk_info
> 1018c1c8 t evms_ioctl_cmd_sector_io
> 1018c394 t evms_ioctl_cmd_get_minor
> 1018c494 t evms_ioctl_cmd_get_volume_data
> 
> So it should be in 'evms_ioctl_cmd_sector_io', is it right?
> 
> Thank Matthew,
>     Joel
> 
> > 
> > -- 
> > Revolutions do not require corporate support.
> > 
> > 
> 
> 
> -------------------------------------------------
> This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)
> 


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Subject: [parisc-linux] LVM-1.0.1 with kernel 2.4.16-pa16 (was: LVM 1.0.1-rc4 on hppa)
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Xref: news.gmane.org gmane.linux.ports.parisc:13310

Hi all,

Just for information that this release compiles (now with -O0) fine with kernel
2.4.16-pa16 and also seems to works fine (at least on my b180.

Joel


Quoting joel.soete@freebel.net:

> Quoting Matthew Wilcox <willy@debian.org>:
> 
> > On Mon, Oct 08, 2001 at 06:39:17PM +0200,
> hgrothe@mathematik.tu-darmstadt.de 
> wrote:
> > > I guess :-) that you compiled the lvm-tools with optimization. Since
> 
> > > there seems to be a general problem with the lvm-tools and gcc3
> (appears 
> > > also on other architectures (see lvm mailing list)) recompile the 
> > > lvm-tools without optimisation or "weak" optimisation (-O0).
> 
> The all LVM-HOWTO test seems to works fine if change -O2 to -O0 into
> make.tmpl.
> 
> > -O0 is no optimisation, -O1 is weak optimisation and -O2 is most
> > optimisations.  This is normally a bug in the code, not the
> compiler...
> 
> I thinks so too.
> I will try now to recompile with -O2 and -ggdb to try to have a better
> idea.
> 
> Thanks again for help,
>         joel



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From: Herb Radford <herbr@magma.ca>
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Subject: [parisc-linux] Install on a D370!
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Xref: news.gmane.org gmane.linux.ports.parisc:13311

OK, I have had success with the C110, C200 and a B180 system.
Now I'm trying a D370. No go. I tried with the 0.9.2 Cd just to see if it 
was alive or had basic problems. Got as far as the famous (for me anyway) 
"Branching to kernel entry point 0x00100000." and that's all folks! I tried 
both serial ports on the machine to no avail.
Yesterday I downloaded the 0.9.3-rc6.iso (it has the same md5sum as the 
official version so I assume congruency) and have had exactly the same results!
There is a FWSCSI card in the box with 6 drives attached and another card, 
a "Remote Management/Access Port" card in HSC 0 Slot 0.
I've seen a couple of messages about D350's which say all this stuff worked!

Does anyone have any suggestions?

Regards, Herb

And here's the log file:

Firmware Version  38.40



Duplex Console IO Dependent Code (IODC) revision 4



------------------------------------------------------------------------------

    (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved

------------------------------------------------------------------------------



   Processor   Speed            State           Coprocessor State  Cache Size

   ---------  --------   ---------------------  -----------------  ----------

       0       160 MHz   Active                 Functional          512 KB



   Central Bus Speed (in MHz)  :        120



   Model: D370/1



   Available memory (bytes)    :  536870912

   Good memory required (bytes):   43753472



   Primary boot path:    8/16/5.4   (dec)

   Alternate boot path:  8/16/5.0   (dec)

   Console path:         8/20/1.0   (dec)

   Keyboard path:        8/16/7.0   (dec)



------- Main Menu -------------------------------------------------------------



         Command                         Description

         -------                         -----------

         BOot [PRI|ALT|<path>]           Boot from specified path

         PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path

         SEArch [DIsplay|IPL] [<path>]   Search for boot devices



         COnfiguration [<command>]       Access Configuration menu/commands

         INformation [<command>]         Access Information menu/commands

         SERvice [<command>]             Access Service menu/commands



         DIsplay                         Redisplay the current menu

         HElp [<menu>|<command>]         Display help for menu or command

         RESET                           Restart the system

-------

Main Menu: Enter command > sea iopl



Searching for device(s) with bootable media...

This may take several minutes.


To discontinue search, press any key (termination may not be immediate).




    Path Number        Device Path (dec)        Device Type and Utilities

    -----------        -----------------        -------------------------

    P0                 8/16/5.2                 Random access media

                                                IPL

    P1                 8/16/6.0                 LAN Module




Main Menu: Enter command > sea



Searching for potential boot device(s)...

This may take several minutes.


To discontinue search, press any key (termination may not be immediate).




    Path Number        Device Path (dec)        Device Type

    -----------        -----------------        -----------

    P0                 8/4.11                   Random access media

    P1                 8/4.10                   Random access media

    P2                 8/4.9                    Random access media

    P3                 8/4.8                    Random access media

    P4                 8/4.4                    Random access media

    P5                 8/16/5.2                 Random access media

    P6                 8/16/6.0                 LAN Module




Main Menu: Enter command > sea ipl



Searching for device(s) with bootable media...

This may take several minutes.


To discontinue search, press any key (termination may not be immediate).




    Path Number        Device Path (dec)        Device Type and Utilities

    -----------        -----------------        -------------------------

    P0                 8/16/5.2                 Random access media

                                                IPL

    P1                 8/16/6.0                 LAN Module




Main Menu: Enter command > bo p0

Interact with IPL (Y, N, or Cancel)?> n



Booting...

Boot IO Dependent Code (IODC) revision 1





HARD Booted.

palo ipl 0.96 root@palinux Fri Nov  2 16:31:18 MST 2001



Boot image contains:

     0/vmlinux32 3122078 bytes @ 0x4cf000

     0/vmlinux64 3990942 bytes @ 0x7c9800

     0/ramdisk 1946807 bytes @ 0xb98000



Information: No console specified on kernel command line. This is normal.

PALO will choose the console currently  used by firmware (serial).



Command line for kernel: 'root=/dev/ram console=ttyS0 TERM=vt102'

Selected kernel: /vmlinux from partition 0

Selected ramdisk: /ramdisk from partition 0

Warning: kernel name doesn't end with 32 or 64 -- Guessing...

This box can boot either 32 or 64-bit kernels...

Both kernels available, choosing 32-bit kernel

ELF32 executable

Entry 00100000 first 00100000 n 6

Segment 0 load 00100000 size 1618208 mediaptr 0x1000

Segment 1 load 0028c000 size 287728 mediaptr 0x18d000

Segment 2 load 002d4000 size 379072 mediaptr 0x1d4000

Segment 3 load 00334000 size 8192 mediaptr 0x231000

Segment 4 load 00338000 size 32768 mediaptr 0x233000

Segment 5 load 003750e8 size 83184 mediaptr 0x23b0e8

Loading ramdisk 1946807 bytes @ 1fe14000...

Branching to kernel entry point 0x00100000.  If this is the last

message you see, you may need to switch your console.  This is

a common symptom -- search the FAQ and mailing list at parisc-linux.org


Firmware Version  38.40



Duplex Console IO Dependent Code (IODC) revision 4



------------------------------------------------------------------------------

    (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved

------------------------------------------------------------------------------



   Processor   Speed            State           Coprocessor State  Cache Size

   ---------  --------   ---------------------  -----------------  ----------

       0       160 MHz   Active                 Functional          512 KB



   Central Bus Speed (in MHz)  :        120



   Model: D370/1



   Available memory (bytes)    :  536870912

   Good memory required (bytes):   43753472



   Primary boot path:    8/16/5.4   (dec)

   Alternate boot path:  8/16/5.0   (dec)

   Console path:         8/20/1.0   (dec)

   Keyboard path:        8/16/7.0   (dec)



------- Main Menu -------------------------------------------------------------



         Command                         Description

         -------                         -----------

         BOot [PRI|ALT|<path>]           Boot from specified path

         PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path

         SEArch [DIsplay|IPL] [<path>]   Search for boot devices



         COnfiguration [<command>]       Access Configuration menu/commands

         INformation [<command>]         Access Information menu/commands

         SERvice [<command>]             Access Service menu/commands



         DIsplay                         Redisplay the current menu

         HElp [<menu>|<command>]         Display help for menu or command

         RESET                           Restart the system

-------

Main Menu: Enter command > pa



   Primary boot path:    8/16/5.4   (dec)

                         08/10/05.4   (hex)



   Alternate boot path:  8/16/5.0   (dec)

                         08/10/05.0   (hex)



   Console path:         8/20/1.0   (dec)

                         08/14/01.0   (hex)



   Keyboard path:        8/16/7.0   (dec)

                         08/10/07.0   (hex)



Main Menu: Enter command > di



------- Main Menu -------------------------------------------------------------



         Command                         Description

         -------                         -----------

         BOot [PRI|ALT|<path>]           Boot from specified path

         PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path

         SEArch [DIsplay|IPL] [<path>]   Search for boot devices



         COnfiguration [<command>]       Access Configuration menu/commands

         INformation [<command>]         Access Information menu/commands

         SERvice [<command>]             Access Service menu/commands



         DIsplay                         Redisplay the current menu

         HElp [<menu>|<command>]         Display help for menu or command

         RESET                           Restart the system

-------

Main Menu: Enter command > ser



------- Service Menu ----------------------------------------------------------



         Command                         Description

         -------                         -----------

         ChassisCodes [<proc>]           Display chassis codes

         CLEARPIM                        Clear (zero) the contents of PIM

         EepromRead [<addr>] [<len>]     Read EEPROM locations

         LCD [ON|OFF]                    Configure the front panel display

         MemRead <addr> [<len>]          Read memory locations

         PDT [CLEAR]                     Display or clear

                                         the Page Deallocation Table

         PIM [<proc> [HPMC|LPMC|TOC]]    Display PIM information



         BOot [PRI|ALT|<path>]           Boot from specified path

         DIsplay                         Redisplay the current menu

         HElp [<menu>|<command>]         Display help for menu or command

         RESET                           Restart the system

         MAin                            Return to Main menu

-------

Service Menu: Enter command > pim



PROCESSOR PIM INFORMATION



-----------------  Processor 0 HPMC Information ------------------


    No valid timestamp


HPMC Chassis Codes = No chassis codes logged



General Registers 0 - 31

00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000

04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000

08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000

12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000

16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000

20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000

24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000

28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000



<Press any key to continue (q to quit)>



Control Registers 0 - 31

00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000

04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000

08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000

12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000

16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000

20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000

24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000

28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000



Space Registers 0 - 7

00-03  00000000          00000000          00000000          00000000

04-07  00000000          00000000          00000000          00000000



<Press any key to continue (q to quit)>


IIA Space                    = 0x0000000000000000

IIA Offset                   = 0x0000000000000000

Check Type                   = 0x00000000

CPU State                    = 0x00000000

Cache Check                  = 0x00000000

TLB Check                    = 0x00000000

Bus Check                    = 0x00000000

Assists Check                = 0x00000000

Assist State                 = 0x00000000

Path Info                    = 0x00000000

System Responder Address     = 0x0000000000000000

System Requestor Address     = 0x0000000000000000

Check Summary                = 0x0000000000000000

Available Memory             = 0x0000000000000000

CPU Diagnose Register 2      = 0x0000000000000000

CPU Status Register 0        = 0x0000000000000000

CPU Status Register 1        = 0x0000000000000000

SADD LOG                     = 0x0000000000000000

Read Short LOG               = 0x0000000000000000



<Press any key to continue (q to quit)>



-----------------  Processor 0 LPMC Information ------------------


Check Type                   = 0x00000000

IC Parity Info               = 0x00000000

Cache Check                  = 0x00000000

TLB Check                    = 0x00000000

Bus Check                    = 0x00000000

Assists Check                = 0x00000000

Assist State                 = 0x00000000

Path Info                    = 0x00000000

System Responder Address     = 0x0000000000000000

System Requestor Address     = 0x0000000000000000




-----------------  Processor 0 TOC Information -------------------


General Registers 0 - 31

00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000

04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000

08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000

12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000

16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000

20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000

24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000

28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000



<Press any key to continue (q to quit)>



Control Registers 0 - 31

00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000

04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000

08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000

12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000

16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000

20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000

24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000

28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000



Space Registers 0 - 7

00-03  00000000          00000000          00000000          00000000

04-07  00000000          00000000          00000000          00000000



IIA Space                    = 0x0000000000000000

IIA Offset                   = 0x0000000000000000

CPU State                    = 0x00000000



<Press any key to continue (q to quit)>



Memory Error Log Information:


    No valid timestamp


    No memory errors logged




I/O Module Error Log Information:


    No valid timestamp


    No I/O module errors logged


<Press any key to continue (q to quit)>



IO Bus Converter Log

--------------------


IOA0 HPA            = 0x00000000

IOA0 UBC_IO_CONTROL = 0x00000000

GSC1 HPA            = 0x00000000

IOA0 IO_IO_LO       = 0x00000000

IOA0 IO_IO_HI       = 0x00000000

IOA0 IO_IO_LO_HV    = 0x00000000

IOA0 IO_IO_HI_HV    = 0x00000000



IOA1 HPA            = 0x00000000

IOA1 UBC_IO_CONTROL = 0x00000000

GSC2 HPA            = 0x00000000

IOA1 IO_IO_LO       = 0x00000000

IOA1 IO_IO_HI       = 0x00000000

IOA1 IO_IO_LO_HV    = 0x00000000

IOA1 IO_IO_HI_HV    = 0x00000000



   NIO bus converter register data is not available.





Service Menu: Enter command >  di



------- Service Menu ----------------------------------------------------------



         Command                         Description

         -------                         -----------

         ChassisCodes [<proc>]           Display chassis codes

         CLEARPIM                        Clear (zero) the contents of PIM

         EepromRead [<addr>] [<len>]     Read EEPROM locations

         LCD [ON|OFF]                    Configure the front panel display

         MemRead <addr> [<len>]          Read memory locations

         PDT [CLEAR]                     Display or clear

                                         the Page Deallocation Table

         PIM [<proc> [HPMC|LPMC|TOC]]    Display PIM information



         BOot [PRI|ALT|<path>]           Boot from specified path

         DIsplay                         Redisplay the current menu

         HElp [<menu>|<command>]         Display help for menu or command

         RESET                           Restart the system

         MAin                            Return to Main menu

-------

Service Menu: Enter command > ma



------- Main Menu -------------------------------------------------------------



         Command                         Description

         -------                         -----------

         BOot [PRI|ALT|<path>]           Boot from specified path

         PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path

         SEArch [DIsplay|IPL] [<path>]   Search for boot devices



         COnfiguration [<command>]       Access Configuration menu/commands

         INformation [<command>]         Access Information menu/commands

         SERvice [<command>]             Access Service menu/commands



         DIsplay                         Redisplay the current menu

         HElp [<menu>|<command>]         Display help for menu or command

         RESET                           Restart the system

-------

Main Menu: Enter command > co



------- Configuration Menu ----------------------------------------------------



         Command                         Description

         -------                         -----------

         AUto [BOot|SEArch] [ON|OFF]     Display or set specified auto flag

         BootID [<proc>] [<boot ID>]     Display or modify processor boot ID

         BootINfo                        Display boot-related information

         BootTimer [0 - 200]             Display or set boot delay time

         CPUconfig [<proc>] [ON|OFF]     Config/deconfig processor

         DEfault                         Set the system to predefined values

         FastBoot [ON|OFF]               Display or set boot tests execution

         LanConfig [ENABLE|DISABLE]      Enable or Disable the built-in LAN

         PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path

         SEArch [DIsplay|IPL] [<path>]   Search for boot devices

         TIme [c:y:m:d:h:m:[s]]          Read or set the real time clock in GMT



         BOot [PRI|ALT|<path>]           Boot from specified path

         DIsplay                         Redisplay the current menu

         HElp [<menu>|<command>]         Display help for menu or command

         RESET                           Restart the system

         MAin                            Return to Main menu

-------

Configuration Menu: Enter command > bin



BOOT INFORMATION


   Processor         Boot ID

   ---------         -------

       0                2



   Autoboot:             OFF

   Autosearch:           OFF

   Fastboot:             OFF



   Primary boot path:    8/16/5.4   (dec)

                         08/10/05.4   (hex)

   Alternate boot path:  8/16/5.0   (dec)

                         08/10/05.0   (hex)

   Console path:         8/20/1.0   (dec)

                         08/14/01.0   (hex)

   Keyboard path:        8/16/7.0   (dec)

                         08/10/07.0   (hex)



   LAN Station Address:  080009-d20c1e



   Wed Dec  12 16:08:40 GMT 2001    (20:01:12:12:16:08:40)


Configuration Menu: Enter command >

Configuration Menu: Enter command > di



------- Configuration Menu ----------------------------------------------------



         Command                         Description

         -------                         -----------

         AUto [BOot|SEArch] [ON|OFF]     Display or set specified auto flag

         BootID [<proc>] [<boot ID>]     Display or modify processor boot ID

         BootINfo                        Display boot-related information

         BootTimer [0 - 200]             Display or set boot delay time

         CPUconfig [<proc>] [ON|OFF]     Config/deconfig processor

         DEfault                         Set the system to predefined values

         FastBoot [ON|OFF]               Display or set boot tests execution

         LanConfig [ENABLE|DISABLE]      Enable or Disable the built-in LAN

         PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path

         SEArch [DIsplay|IPL] [<path>]   Search for boot devices

         TIme [c:y:m:d:h:m:[s]]          Read or set the real time clock in GMT



         BOot [PRI|ALT|<path>]           Boot from specified path

         DIsplay                         Redisplay the current menu

         HElp [<menu>|<command>]         Display help for menu or command

         RESET                           Restart the system

         MAin                            Return to Main menu

-------

Configuration Menu: Enter command > ma



------- Main Menu -------------------------------------------------------------



         Command                         Description

         -------                         -----------

         BOot [PRI|ALT|<path>]           Boot from specified path

         PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path

         SEArch [DIsplay|IPL] [<path>]   Search for boot devices



         COnfiguration [<command>]       Access Configuration menu/commands

         INformation [<command>]         Access Information menu/commands

         SERvice [<command>]             Access Service menu/commands



         DIsplay                         Redisplay the current menu

         HElp [<menu>|<command>]         Display help for menu or command

         RESET                           Restart the system

-------

Main Menu: Enter command > in all



PROCESSOR INFORMATION


                        HVERSION  SVERSION   CVERSION     Processor

   Processor   Speed     Model    Model/Op  (Revision)      State

   ---------  --------  --------  --------  ----------  -------------

       0       160 MHz   0x5a20    0x0481      769      Active



   Central Bus Speed (in MHz)  :        120

   HSC Bus Speed (in MHz)      :         39

   Software ID (dec)           : 2014794797

   Software ID (hex)           : 0x7817542d

   Software Capability         : 0xf0



   Model: D370/1



<Press any key to continue (q to quit)>



COPROCESSOR INFORMATION


                     Coprocessor   Coprocessor      Coprocessor

        Processor       Model        Revision          State

       -----------   -----------   -----------   -----------------

            0         0x0000000e           0      Functional





CACHE INFORMATION


        Processor    Instruction Cache Size    Data Cache Size

       -----------   -----------------------   ---------------

            0               512 KB                  512 KB



<Press any key to continue (q to quit)>



MEMORY INFORMATION



    MEMORY STATUS TABLE


    Slot     SIMM Pair Size     Status

    ----     --------------     ------

    0a/b      256MB            Configured

    1a/b      256MB            Configured

             ---------

    TOTAL     512MB



<Press any key to continue (q to quit)>




    DETAILED MEMORY CONFIGURATION TABLE



    SPA         GROUP  SMC  SMC Status   Bank  Bank Status  Size  Slot

    ---         -----  ---  ----------   ----  -----------  ----  ----

    0x00000000    0     0   Configured     3   Configured  128MB  1a/b

                        1   Configured     0   Configured  128MB  1a/b

                        2   Configured     1   Configured  128MB  0a/b

                        2   Configured     2   Configured  128MB  0a/b





    Group 0 interleaved  4 ways over  4 banks



<Press any key to continue (q to quit)>






    Active, installed memory (bytes)  :  536870912 of DRAM

    Deallocated pages (bytes)         -          0

                                         -----------

    Available memory (bytes)          :  536870912



    Good memory required by OS (bytes):   43753472



          Memory

    HVERSION  SVERSION

    -------- ----------

     0x0760  0x00000900


<Press any key to continue (q to quit)>



I/O MODULE INFORMATION


                                                                    IODC   IODC

Path (dec)   Type                Bus Slot Mod HVERSION  SVERSION   Vers   Dep

----         ----                --- ---- --- -------- ---------- ------ ------

8            I/O Adapter           0   2   0   0x580f  0x10000b50  0x00   0x00

8/0          Bus Converter         1   0   0   0x5000  0x00000c00  0x00   0x00

8/0/0        A Direct I/O          5   0   0   0x0100  0x00000d00  0x04   0x00

8/4          A DMA I/O             1   1   0   0x0131  0x00008980  0x98   0x00

8/16         Bus Adapter           1   4   0   0x02f0  0x00008100  0x00   0x00

8/16/5       Built-in SE SCSI     16   1   1   0x02f0  0x00008280  0x01   0x00

8/16/6       Built-in LAN         16   1   2   0x02f0  0x00008a00  0x02   0x00

8/16/0       Built-in Parallel    16   0   0   0x02f0  0x00007400  0x00   0x00

8/16/7       Built-in Keyboard    16   1   3   0x02f0  0x00008400  0x00   0x00

8/16/8       Built-in Mouse       16   2   0   0x02f0  0x00008400  0x00   0x00

8/20         Bus Adapter           1   5   0   0x0310  0x00008e00  0x00   0x00

8/20/5       Bus Adapter          20   1   1   0x0310  0x00009000  0x00   0x00

8/20/2       RS232 Port           20   0   2   0x0310  0x00008c00  0x00   0x00

10           I/O Adapter           0   2   2   0x580f  0x10000b50  0x00   0x00



<Press any key to continue (q to quit)>



Hot Swap module is present.



EISA Cards


Path        Type                            EISA ID

----        ----                            -------

8/20/5/1    EISA slot is empty

8/20/5/2    EISA slot is empty

8/20/5/3    EISA slot is empty

8/20/5/4    EISA slot is empty

8/20/5/5    EISA slot is empty

8/20/5/6    EISA slot is empty

8/20/5/7    EISA slot is empty

8/20/5/8    EISA slot is empty





<Press any key to continue (q to quit)>



BOOT INFORMATION


   Processor         Boot ID

   ---------         -------

       0                2



   Autoboot:             OFF

   Autosearch:           OFF

   Fastboot:             OFF



   Primary boot path:    8/16/5.4   (dec)

                         08/10/05.4   (hex)

   Alternate boot path:  8/16/5.0   (dec)

                         08/10/05.0   (hex)

   Console path:         8/20/1.0   (dec)

                         08/14/01.0   (hex)

   Keyboard path:        8/16/7.0   (dec)

                         08/10/07.0   (hex)



   LAN Station Address:  080009-d20c1e



   Wed Dec  12 16:10:43 GMT 2001    (20:01:12:12:16:10:43)


<Press any key to continue (q to quit)>



FIRMWARE INFORMATION


   Firmware Version:     38.40




CHIP REVISIONS


   Module                           Revision

   ------                           --------

   System Board                     0

   Processor Board                  0

   PA 8000-8000 CPU                 3.1

   Firmware                         24

   Master Memory Controller         9

   I/O Bus Adapter 0                15

   Fast/Wide SCSI Board             1

   Multifunction I/O Controller     0

   EISA Interface                   0

   I/O Bus Adapter 1                15



<Press any key to continue (q to quit)>



WARNINGS



No warnings to report.


Main Menu: Enter command > sea ipl



Searching for device(s) with bootable media...

This may take several minutes.


To discontinue search, press any key (termination may not be immediate).




    Path Number        Device Path (dec)        Device Type and Utilities

    -----------        -----------------        -------------------------

    P0                 8/16/5.2                 Random access media

                                                IPL

    P1                 8/16/6.0                 LAN Module




Main Menu: Enter command > bo p0

Interact with IPL (Y, N, or Cancel)?> y



Booting...

Boot IO Dependent Code (IODC) revision 1





HARD Booted.

palo ipl 0.96 root@palinux Fri Nov  2 16:31:18 MST 2001



Boot image contains:

     0/vmlinux32 3122078 bytes @ 0x4cf000

     0/vmlinux64 3990942 bytes @ 0x7c9800

     0/ramdisk 1946807 bytes @ 0xb98000



Information: No console specified on kernel command line. This is normal.

PALO will choose the console currently  used by firmware (serial).

Current command line:

0/vmlinux root=/dev/ram initrd=0/ramdisk console=ttyS0 TERM=vt102

  0: 0/vmlinux

  1: root=/dev/ram

  2: initrd=0/ramdisk

  3: console=ttyS0

  4: TERM=vt102



Edit which field?

(or 'b' to boot with this command line)? 0 b



Command line for kernel: 'root=/dev/ram console=ttyS0 TERM=vt102'

Selected kernel: /vmlinux from partition 0

Selected ramdisk: /ramdisk from partition 0

Warning: kernel name doesn't end with 32 or 64 -- Guessing...

This box can boot either 32 or 64-bit kernels...

Both kernels available, choosing 32-bit kernel

ELF32 executable

Entry 00100000 first 00100000 n 6

Segment 0 load 00100000 size 1618208 mediaptr 0x1000

Segment 1 load 0028c000 size 287728 mediaptr 0x18d000

Segment 2 load 002d4000 size 379072 mediaptr 0x1d4000

Segment 3 load 00334000 size 8192 mediaptr 0x231000

Segment 4 load 00338000 size 32768 mediaptr 0x233000

Segment 5 load 003750e8 size 83184 mediaptr 0x23b0e8

Loading ramdisk 1946807 bytes @ 1fe14000...

Branching to kernel entry point 0x00100000.  If this is the last

message you see, you may need to switch your console.  This is

a common symptom -- search the FAQ and mailing list at parisc-linux.org










[1;24r




From - Thu Nov 08 21:20:43 2018
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Subject: Re: [parisc-linux] [test] PA-RISC Linux 0.9.3
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"Jan Heumann" wrote:
> I have test the PA-RISC Linux 0.9.3-RC6.
...
> in the packages are a bug. by selecting with tasksel can the installation 
> frozen. i have use unix-server, web-server and c-developer and it is not 
> frozen. i have selected all packages and the installation is frozen.

Not sure this is the same bug: zsh pre-removal script hangs.

Workaround was to kill -9 that process. apt-get will
try the *new* pre-remove script and that didn't "hang".
"New" == zsh_4.0.4-7_hppa.deb
Don't know offhand what "old" was but I think it was
it's immediate predecessor.

grant



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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Install on a D370!
Date: Wed, 12 Dec 2001 11:10:35 -0700
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Herb Radford wrote:
> Now I'm trying a D370. No go.
...
> There is a FWSCSI card in the box with 6 drives attached and another card, 
> a "Remote Management/Access Port" card in HSC 0 Slot 0.
...

Have you read the following?
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-August/013326.html

(hint: search parisc-linux mail archive for "d-class")

grant



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Subject: Re: [parisc-linux] Install on a D370!
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On Wed, Dec 12, 2001 at 12:01:45PM -0500, Herb Radford wrote:
> There is a FWSCSI card in the box with 6 drives attached and another card, 
> a "Remote Management/Access Port" card in HSC 0 Slot 0.
> I've seen a couple of messages about D350's which say all this stuff worked!
> 
> Does anyone have any suggestions?

Yep, I think I know the problem.  Let's see if anyone agrees.

> I/O MODULE INFORMATION
>                                                                     IODC   IODC
> Path (dec)   Type                Bus Slot Mod HVERSION  SVERSION   Vers   Dep
> ----         ----                --- ---- --- -------- ---------- ------ ------
> 8            I/O Adapter           0   2   0   0x580f  0x10000b50  0x00   0x00
> 8/0          Bus Converter         1   0   0   0x5000  0x00000c00  0x00   0x00
> 8/0/0        A Direct I/O          5   0   0   0x0100  0x00000d00  0x04   0x00
> 8/4          A DMA I/O             1   1   0   0x0131  0x00008980  0x98   0x00
> 8/16         Bus Adapter           1   4   0   0x02f0  0x00008100  0x00   0x00
> 8/16/5       Built-in SE SCSI     16   1   1   0x02f0  0x00008280  0x01   0x00
> 8/16/6       Built-in LAN         16   1   2   0x02f0  0x00008a00  0x02   0x00
> 8/16/0       Built-in Parallel    16   0   0   0x02f0  0x00007400  0x00   0x00
> 8/16/7       Built-in Keyboard    16   1   3   0x02f0  0x00008400  0x00   0x00
> 8/16/8       Built-in Mouse       16   2   0   0x02f0  0x00008400  0x00   0x00
> 8/20         Bus Adapter           1   5   0   0x0310  0x00008e00  0x00   0x00
> 8/20/5       Bus Adapter          20   1   1   0x0310  0x00009000  0x00   0x00
> 8/20/2       RS232 Port           20   0   2   0x0310  0x00008c00  0x00   0x00
> 10           I/O Adapter           0   2   2   0x580f  0x10000b50  0x00   0x00

The device at 8/16 is a Lasi.  However, it doesn't report a serial port
below it.  I wonder if plugging the management card in disables the first
onboard serial port?  Anyway, there is an RS232 device we know how to
drive at 8/20/2.  This is a Wax chip and it has a standard UART in it.

So if you plug your console into the _second_ serial port, yet boot
it with console=ttyS0, you should see boot messages.  If you have two
null-modem cables, you might want to try having both plugged in at the
same time to be sure you don't miss anything.

-- 
Revolutions do not require corporate support.



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From: "James P. Kinney III" <jkinney@localnetsolutions.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Firmware upgraded, STI console problem
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My C160 is running the old, broken, no-working-pci, firmware version
2.1. The ftp://us-ffs.external.hp.com/firmware_patches/hp/cpu/ lists the
latest version (PF_CC2X0061) as 6.1.=20

So I upgraded my firmware. Still no sti console nor X on frame buffer. I
can see in /proc that the frame buffers are running (stifb). When X
starts, it fails on a framebuffer call.=20

When IPL

dmesg mentions: Dino: No PCI devices enabled.

Also, my processor is listed in firmware and docs as a PA8000. So why
not 64-bit cpu. If I boot the 2.4.16-64 kernel, it hangs after the
"branching" messege screen.=20
--=20
James P. Kinney III   \Changing the mobile computing world/
President and COO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint =3D 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7=20



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Firmware upgraded, STI console problem
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On Wed, Dec 12, 2001 at 02:34:35PM -0500, James P. Kinney III wrote:
> Also, my processor is listed in firmware and docs as a PA8000. So why
> not 64-bit cpu. If I boot the 2.4.16-64 kernel, it hangs after the
> "branching" messege screen. 

this must surely be a faq by now.  the c160-era workstations shipped
with 32-bit firmware, so it's much more sensible to run a 32-bit kernel
on them.  why do people think a 64-bit kernel is better?  it's slower and
takes more ram than a 32-bit kernel.  the only benefit it might offer
(being able to deal with >4gb of ram, or >4gb virtual address space)
aren't applicable -- you can't put that much ram in a c160, and we don't
support 64-bit user processes yet.

-- 
Revolutions do not require corporate support.



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From: Grant Grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Firmware upgraded, STI console problem
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"James P. Kinney III" wrote:
> Also, my processor is listed in firmware and docs as a PA8000. So why
> not 64-bit cpu. If I boot the 2.4.16-64 kernel, it hangs after the
> "branching" messege screen.=20

You need to build your own 64-bit kernel with "NARROW_PDC" support enabled.
But I totally agree with Matthew on this...don't bother.

grant



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From: Tom <palinux@alaskatech.org>
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Subject: Re: [parisc-linux] Firmware upgraded, STI console problem
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> "James P. Kinney III" wrote:
> > Also, my processor is listed in firmware and docs as a PA8000. So why
> > not 64-bit cpu. If I boot the 2.4.16-64 kernel, it hangs after the
> > "branching" messege screen.=20
>
> You need to build your own 64-bit kernel with "NARROW_PDC" support enabled.
> But I totally agree with Matthew on this...don't bother.
> -
> grant

Okay - is there some short of note on which systems are 32-bit and which
are 64-bit? Something like, "PA7000-series are 32-bit, PA-8000 (up to the
8x00) is 64-bit with 32-bit PDC and PA-8000 (after 8x00) is fully 64-bit".
I just picked up a C180 and have a line on a C240 and was beginning to
wonder the same things...




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Firmware upgraded, STI console problem
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On Wed, Dec 12, 2001 at 11:50:02AM -0900, Tom wrote:
> Okay - is there some short of note on which systems are 32-bit and which
> are 64-bit? Something like, "PA7000-series are 32-bit, PA-8000 (up to the
> 8x00) is 64-bit with 32-bit PDC and PA-8000 (after 8x00) is fully 64-bit".
> I just picked up a C180 and have a line on a C240 and was beginning to
> wonder the same things...

workstations: everything up to C360/J2240 has 32-bit firmware; B1000
and up have dual-32/64 bit firmware.
servers: N, L & A500 have 64-bit only firmware; A180 is 32-bit only.
don't know about other models.

-- 
Revolutions do not require corporate support.



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From: Hamish Moffatt <hamish@cloud.net.au>
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Subject: Re: [parisc-linux] Install on a D370!
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On Wed, Dec 12, 2001 at 12:01:45PM -0500, Herb Radford wrote:
> Yesterday I downloaded the 0.9.3-rc6.iso (it has the same md5sum as the 
> official version so I assume congruency) and have had exactly the same results!
> There is a FWSCSI card in the box with 6 drives attached and another card, 
> a "Remote Management/Access Port" card in HSC 0 Slot 0.
> I've seen a couple of messages about D350's which say all this stuff worked!
> 
> Does anyone have any suggestions?

I pulled out the access port card to get the D350 working; otherwise
I never saw any messages after the branching to kernel entry point
message, as you're seeing.

Unfortunately I never got a chance to get all the debug info that
Matthew wanted to sort this out.. the machine has been repossessed
for real work and is running HP-UX again.

On a completely different topic, I assume it's safe to apt-get upgrade
these days? All the tool chain problems etc have been solved?
I still have a 715/80 running fine.

cheers
Hamish
-- 
Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>



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On Wed, Dec 12, 2001 at 10:37:14AM +0100, Sven Cronenberg wrote:
> I am using 2 HP9000 WOrkstatiosn at home. One HP900/720 system with CRX8 
>  graphic card and and a HP9000/735 with CRX48Z graphics system.

> I would like to know if anyone has succeeded in running X Windows for 
> PARISC Linux on one of those machines?

not yet. There is some code for these boards in the kernel, but it's disabled
by default. I'm waiting for hardware to verify the code is working or if it
isn't to fix it.

> By the way: How das the x-windows for PARISC Linux work. Does it access 
> the graphics card via the framebuffer device or directly?

via a framebuffer device.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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Content-Type: text/plain
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OK, I've enclosed the dmesg output. The card had a sticker which lists
it as a 4017B. dmesg calls it a 4017b-lz. There is an expansion card on
it with a bunch of Motorola chips and a large one with a heat sink. It
is plugged into the GSC socket, not the PCI socket. (Why is the PCI
socket "backwards"? I've got a great Matrox Millineum ...)

grep -i sti dmesg.txt
Kernel command line: root=3D/dev/sda5 HOME=3D/ console=3Dtty0 sti=3D0
sti_font=3DVGA8x16 TERM=3Dlinux
POSIX conformance testing by UNIFIX
STI word mode ROM at f0026000, hpa=3Dfa000000
STI word mode ROM, id 2d08c0a7-9a02587, conforms to spec rev. 8.07
STI device: INTERNAL_EG_1280
STI byte mode ROM at f8000000, hpa=3Df8000000
STI byte mode ROM, id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071B_LZ
fb0: stifb 1280x1024-8 frame buffer device, id: 2d08c0a7, mmio:
0xfa100000
fb1: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio:
0xf8100000
sticonsole_init: searching for STI ROMs

grep -i graphics dmesg.txt
18. Gecko GSC Core Graphics (10) at 0xfa000000 [8/24], versions 0x16,
0x0, 0x85
21. Coral SGC Graphics (10) at 0xf8000000 [10/8], versions 0x4, 0x0,
0x77

Before the firmware upgrade, the Coral SGC card was listed as a
"Hyperdrive optional graphics (10) at 0xf8000000 [10/8], versions 0x5,
0x0, 0x77

It seems that sti=3D1 should turn on console on the graphics monitor.
Unless I need a different graphics terminal other than tty0 or tty1.

--=20
James P. Kinney III   \Changing the mobile computing world/
President and COO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: [parisc-linux] 2.5 kernel and CVS -- opinions?
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On Tue, Dec 11, 2001 at 09:29:25PM -0700, Grant Grundler wrote:
> Paul Bame wrote:
> > It's time to start tracking the 2.5 kernel at cvs.parisc-linux.org
> > and there are a few different ways to do it -- I'm looking for opinions.
> > My favorite option at the moment is 1A.
> 
> I'm ok with 1A as well:

I don't have a hard opinion whether having two tree makes more sense than
trunk/branch hoping. People will probably work for some time on 2.4
and switch over to 2.5, so I guess two trees are ok.

> o *someday*, I hope the CVS date-based check out will get fixed.
> o TAGs work and I'm ok with tag being used.

tags are sometimes nice, but too much tags aren't. Try a cvs log with hundreds
of tags. That's not funny. And btw. tags are (re-)movable and they don't have a
history, which makes them pretty useless for any serious build system. At
work we use seperate cvs controlled sourcelists, which lists every file with
its revision of a release. That way it's always possible to rebuild an old
release even if a dork moved/removed a tag.

> o We could TAG weekly (or monthly) and keep enough nightly
>   checkout's to cover two or three tags. Or whatever we can
>   afford for diskspace.

I don't see a point for needing that. But maybe I'm just overlooking something.

I personaly wouldn't touch 2.5 at the moment. Right now 2.5 looks to
me like an adventure park of out of control kids. That's ok but IMHO it
doesn't help Linux/PARISC development. Hunting generic bugs mixed with
architecture bugs isn't fun. Let's wait until 2.5 settles and Linus will
accept PARISC inclusion (which he won't at the moment).

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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From: Sonny Cook <sonny@aspersion.org>
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Subject: [parisc-linux] tulip driver
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What is the state of the tulip driver currently?  I have been running 
2.4.9-pa45 for a few weeks with a tulip pci card in a b132L.  I decided to 
upgrade the system and kernel.  The kernel I used is 2.4.16-pa16.  During 
the boot process, the kernel just locks up after reporting that it has 
freed some memory.  Further investigation revealed that loading the tulip 
module locks it up.  It spewed out some debugging info, but I did not grab 
it.  I have the kernel module autoloader set and tulip compiled as a 
module.
Any advice, or hint as to where to start looking would be appreciated.

On a releated note, I have a tulip based 4-port ethernet card 
(AHA6944B/TX) that I have been playing with.  Loading the tulip module 
with this thing installed also locks the machine up nicely.  I do have the 
debugging information the kernel spit, but I'm not quite sure what to do 
with it.  Again, any advice would be appreciated.

Thanks,
Sonny




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From: "Sean J. Anaya" <sanaya@gr.hp.com>
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Subject: [parisc-linux] A C180 up and running (partially)
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Hi all,

I finally got my C180 installed with pa-linux v0.9.3, WooHoo!

Couple of questions tho:

1) I'm having trouble navigating the install program using a windows 2000
   machine as a serial terminal using the Hyperterminal program setup as
   a vt100. Seems the up/down arrows do not work and I need to use CTRL-n
   in some areas and CTRL-v in others, but they don't scroll down to the
   next item, acts more like a page.

   Any suggestions on how to setup the Hyperterminal program to correctly
   navigate the install program or a different program I could use as a
terminal
   with a windows 2000 machine?

2) I can get the system to boot with the serial console, but when I attach a
graphics
   one, the system hangs during the boot process. I'm guessing this has
something to
   do with the fact I couldn't properly choose what kernel devices to add
since I could
   scroll through the selection list. See Above.

Thanks,

Sean Anaya
sanaya@gr.hp.com




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"James P. Kinney III" wrote:
> (Why is the PCI socket "backwards"? I've got a great Matrox Millineum ...)

You mean the keying of the PCI slot?
I don't know if C160 supports 3.3v, 5.5v, or both. I'd need to dig
up a product data sheet to tell you which the C160 (not C160L)
supported. But if your card doesn't fit the keys in the slot,
it's *not* electrically compatible.

Secondly, folks with broken Dino's built-in, can *only* plug
in HP-UPX supported graphics cards once firmware is upgraded
to 5.x or better (on older B and C-class machines).
PDC won't boot with anything else installed - but no harm
in trying (unlike mismatched PCI slot keys).

grant



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Sonny Cook wrote:
> What is the state of the tulip driver currently?

Stable - I don't think tulip's your problem.

> The kernel I used is 2.4.16-pa16.  During 
> the boot process, the kernel just locks up after reporting that it has 
> freed some memory.

Helge enabled freeing bootmem and it was disabled again because of such
lock-ups. At least until all extra __init's get removed.
I think it's disabled since 2.4.16-pa18 or -pa19.
So tulip is just a victim here and not a culprit.

> Any advice, or hint as to where to start looking would be appreciated.

Pull newer kernel source or disable the #if 1 that was enabled in -pa14.
See parisc-linux-cvs archive for details.

grant



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>>>>> "Grant" == Grant Grundler <grundler@puffin.external.hp.com> writes:

Grant> You mean the keying of the PCI slot?  I don't know if C160
Grant> supports 3.3v, 5.5v, or both. I'd need to dig up a product data
Grant> sheet to tell you which the C160 (not C160L) supported. But if
Grant> your card doesn't fit the keys in the slot, it's *not*
Grant> electrically compatible.

C160 has 3.3V only (i.e. it doesn't take most cheapo PC cards).

I ended up buying Symbios branded SCSI controllers for my C160s.  They
support both 3.3 and 5V operation.

And I have yet to see a PCI graphics board with universal/3.3V
connector.  Except for HP ones, that is.

-- 
Martin K. Petersen      Cereal Bowl Engineer, Linuxcare, Inc.
http://mkp.net/         SGI XFS, Linux/PA-RISC, GNOME



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> And I have yet to see a PCI graphics board with universal/3.3V
> connector.  Except for HP ones, that is.

You want 5v for the fan 8(



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On Wed, Dec 12, 2001 at 07:41:57PM -0900, Tom wrote:
> By all means, feel free to post corrections, either here or direct to
> me, and I'll update it. Also, if someone can think of something else
> useful for it, just ask... (Perhaps the minimum kernel revision needed?)

E, F, G, H, I class aren't supported straight off the CD; they require
additional changes, AIUI.  Not to mention no support for their SCSI
adapters.  K mostly works... similar problems to E.  D & R should work
fine (problem with D class with remote management console).  735's FWDiff
scsi doesn't work.

-- 
Revolutions do not require corporate support.



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#1) I successfully installed 0.9.3 on a C240!!!
#2) it works if I use the serial console.  Absolutely no problems... Was
able to use dselect after install to install graphical environment (x11,
gnome, and kde)
#3) I want to use a graphical console (my color monitor) that does
support the following resolutions 1280 x 1024 @ 72 , 1280 x 1024 @ 75,
and 1024 x 768 @ 72.
#4) if disconnect the serial connection, plug in the ps2 mouse and ps2
keyboard and the monitor to the graphics card (system detects Console
path: Graphics(4))
#5) the system gets as far as:
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

A) the FAQ is short and I can't find any reference. I have read it
several time. either it's not there or I'm blind
B) I tried searching the lists on parisc-linux.org but the search
feature doesn't return any hits for "0x00100000" or "switch your
console"
C) I manually searched over 1 years' worth of archives but didn't find
an answer

?) Does 0.9.3 support the graphics card on a c240? Or only serial?
?) If only serial, how do you get a gui environment like gnome of kde to
interact with this version of linux?
?) am I just clueless?

Thanks for any and all feedback...
----------------------
http://www.sysadmin.info/
HP-UX SysAdmin Information




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I'm still suspicious.  If I boot with init=/bin/sh, then it boots to the 
shell.  When I do an insmod on the tulip module, then the kernel crashes 
and spits out the (I think its the stack) debugging info.  At any rate, 
I'll give the latest kernel a try and see what happens.
Thanks,
Sonny

On Wed, 12 Dec 2001, Grant Grundler wrote:

> Sonny Cook wrote:
> > What is the state of the tulip driver currently?
> 
> Stable - I don't think tulip's your problem.
> 
> > The kernel I used is 2.4.16-pa16.  During 
> > the boot process, the kernel just locks up after reporting that it has 
> > freed some memory.
> 
> Helge enabled freeing bootmem and it was disabled again because of such
> lock-ups. At least until all extra __init's get removed.
> I think it's disabled since 2.4.16-pa18 or -pa19.
> So tulip is just a victim here and not a culprit.
> 
> > Any advice, or hint as to where to start looking would be appreciated.
> 
> Pull newer kernel source or disable the #if 1 that was enabled in -pa14.
> See parisc-linux-cvs archive for details.
> 
> grant
> 




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On Thu, Dec 13, 2001 at 07:22:25AM +0000, Sonny Cook wrote:
> I'm still suspicious.  If I boot with init=/bin/sh, then it boots to the 
> shell.  When I do an insmod on the tulip module, then the kernel crashes 
> and spits out the (I think its the stack) debugging info.  At any rate, 
> I'll give the latest kernel a try and see what happens.

tulip isn't the problem.  tulip is calling some routine which is the
problem.  we just don't know which one.

-- 
Revolutions do not require corporate support.



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Xref: news.gmane.org gmane.linux.ports.parisc:13334

Thanks for the reply... Following is the entire dmsg... 
I notice it twice says "I'm not trying to set up your PCI graphics card
now... It would freeze your machine."

Linux version 2.4.9-32 (root@paer) (gcc version 3.0.2 (Debian)) #1 Fri
Nov 30 19
:36:30 MST 2001
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model   00005990 00000481 00000000 00000002 77ab680d 100000f0 00000008
000000b2 
000000b2
vers    00000501
cpuid   000001d7
CPUID   vers 14 rev 23
model   9000/782/C240+
Total Memory: 512 Mb
pagetable_init
On node 0 totalpages: 131072
zone(0): 131072 pages.
zone(1): 0 pages.
zone(2): 0 pages.
LED display at f0190001 registered
Kernel command line: root=/dev/sda4 HOME=/ console=ttyS0 TERM=vt102
Console: colour dummy device 160x64
Calibrating delay loop... 470.22 BogoMIPS
Memory: 512860k available
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf,
0xb
2. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions 0x680, 0x3, 0xa
3. Raven U/L2 Dino RS-232 (10) at 0xf2003000 [8/0/63], versions 0x6,
0x0, 0x8c
4. Raven+ w SE FWSCSI Core BA (11) at 0xffd00000 [8/16], versions 0x56,
0x0, 0x8
1,  additional addresses: 0xffc00000 
5. Raven+ w SE FWSCSI Core Centronics (10) at 0xffd02000 [8/16/0],
versions 0x56
, 0x0, 0x74,  additional addresses: 0xffd03000 
6. Raven+ w SE FWSCSU Core Audio (10) at 0xffd04000 [8/16/1], versions
0x56, 0x4
, 0x7b
7. Raven+ w SE FWSCSI Core RS-232 (10) at 0xffd05000 [8/16/4], versions
0x56, 0x
0, 0x8c
8. Raven+ w SE FWSCSI Core SCSI (10) at 0xffd06000 [8/16/5], versions
0x56, 0x0,
 0x82
9. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08000 [8/16/7],
versions 0x56,
 0x0, 0x84
10. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08100 [8/16/8],
versions 0x56
, 0x0, 0x84
11. U2-IOA BC GSC+ Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1,
0xc
12. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf,
0xb
13. Cujo PCI Bridge (13) at 0xf1000000 [10/0], versions 0x682, 0x1, 0xa,
additi
onal addresses: 0xf6000000 
14. U2-IOA BC GSC+ Port (7) at 0xf103f000 [10/63], versions 0x501, 0x1,
0xc
15. Raven U 240 (9000/780/C240) (0) at 0xfffa0000 [32], versions 0x599,
0x0, 0x4
16. Raven U 240 (1) at 0xfffb1000 [49], versions 0x6f, 0x0, 0x9
CPU(s): 1 x PA8200 (PCX-U+) at 236.000000 MHz
ccio found U2 at 0xfff88000
io_io_low: 0xf2000000
17. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions 0x680, 0x3, 0xa
18. Raven U/L2 Dino RS-232 (10) at 0xf2003000 [8/0/63], versions 0x6,
0x0, 0x8c
19. Raven U/L2 Dino PS/2 Port (10) at 0xf2001000 [8/1], versions 0x6,
0x0, 0x96
20. Raven+ w SE FWSCSI Core BA (11) at 0xffd00000 [8/16], versions 0x56,
0x0, 0x
81,  additional addresses: 0xffc00000 
21. Raven+ w SE FWSCSI Core Centronics (10) at 0xffd02000 [8/16/0],
versions 0x5
6, 0x0, 0x74,  additional addresses: 0xffd03000 
22. Raven+ w SE FWSCSU Core Audio (10) at 0xffd04000 [8/16/1], versions
0x56, 0x
4, 0x7b
23. Raven+ w SE FWSCSI Core RS-232 (10) at 0xffd05000 [8/16/4], versions
0x56, 0
x0, 0x8c
24. Raven+ w SE FWSCSI Core SCSI (10) at 0xffd06000 [8/16/5], versions
0x56, 0x0
, 0x82
25. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08000 [8/16/7],
versions 0x56
, 0x0, 0x84
26. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08100 [8/16/8],
versions 0x56
, 0x0, 0x84
27. U2-IOA BC GSC+ Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1,
0xc
ccio found U2 at 0xfff8a000
io_io_low: 0xf1000000
28. Cujo PCI Bridge (13) at 0xf1000000 [10/0], versions 0x682, 0x1, 0xa,
additi
onal addresses: 0xf6000000 
29. Dino RS-232 (10) at 0xf1003000 [10/3], versions 0x7, 0x0, 0x8c
30. U2-IOA BC GSC+ Port (7) at 0xf103f000 [10/63], versions 0x501, 0x1,
0xc
Lasi version 0 at 0xffd00000 found.
Dino version 3.1 found at 0xf2000000
Cujo version 2.0 found at 0xf1000000
Enabling Cujo 2.0 bug workaround
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
STI PCI ROM enabled at 0xf1e00000
PCI graphic ROM found at f1e00000 (2048 kB), fb @ f6000000 (32 MB)
PCI region 0: f6000000 with 32768 kB
PCI region 1: 00000000 with 0 kB
PCI region 2: 00000000 with 0 kB
PCI region 3: 00000000 with 0 kB
PCI region 4: 00000000 with 0 kB
PCI region 5: 00000000 with 0 kB
PCI region 6: f1e00000 with 2048 kB
PCI region 7: 00000000 with 0 kB
PCI region 8: 00000000 with 0 kB
PCI region 9: 00000000 with 0 kB
PCI region 10: 00000000 with 0 kB
PCI region 11: 00000000 with 0 kB
Trying PCI STI ROM at f1e00000, PCI hpa at f6000000
I'm not trying to set up the PCI graphic card now... It would freeze
your machin
e
Unable to handle STI device 'PCI device 103c:1008 (Hewlett-Packard
Company)'
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI en
abled
ttyS00 at iomem 0xffd05800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf2003800 (irq = 106) is a 16550A
ttyS02 at iomem 0xf1003800 (irq = 170) is a 16550A
Lasi PS/2 receive buffer timeout
PS/2 keyboard port at 0xffd08000 (irq 69) found, no device attached.
Lasi PS/2 transmit buffer timeout
PS/2 psaux port at 0xffd08100 (irq 69) found, no device attached.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre6 (July 2, 2001)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 48 at 0xff00, 00:60:B0:D0:4D:57, IRQ 96.
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 19, function 0
sym53c8xx: 53c875 detected 
sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 99
sym53c875-0: ID 7, Fast-20, Parity Checking
scsi0 : sym53c8xx-1.7.3c-20010512
  Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
scsi1: (2:0) Synchronous at offset 8, period 100ns
  Vendor: TOSHIBA   Model: CD-ROM XM-6201TA  Rev: 1037
  Type:   CD-ROM                             ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
sym53c875-0-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.12
Lasi Harmony Audio rev. 31 at 0xffd04000, using IRQ 82
sticonsole_init: searching for STI ROMs
BUG: Skipping previously registered driver: sti (native)
STI PCI ROM enabled at 0xf1e00000
PCI graphic ROM found at f1e00000 (2048 kB), fb @ f6000000 (32 MB)
PCI region 0: f6000000 with 32768 kB
PCI region 1: 00000000 with 0 kB
PCI region 2: 00000000 with 0 kB
PCI region 3: 00000000 with 0 kB
PCI region 4: 00000000 with 0 kB
PCI region 5: 00000000 with 0 kB
PCI region 6: f1e00000 with 2048 kB
PCI region 7: 00000000 with 0 kB
PCI region 8: 00000000 with 0 kB
PCI region 9: 00000000 with 0 kB
PCI region 10: 00000000 with 0 kB
PCI region 11: 00000000 with 0 kB
Trying PCI STI ROM at f1e00000, PCI hpa at f6000000
I'm not trying to set up the PCI graphic card now... It would freeze
your machin
e
Unable to handle STI device 'PCI device 103c:1008 (Hewlett-Packard
Company)'
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Adding Swap: 498872k swap-space (priority -1)
eth0: Setting full-duplex based on MII#1 link partner capability of
45e1.
VFS: Disk change detected on device sr(11,0)
ISO 9660 Extensions: RRIP_1991A
ISO 9660 Extensions: RRIP_1991A
Lasi PS/2 transmit buffer timeout
-----Original Message-----
From: Helge Deller [mailto:helge.deller@sap.com] 
Sent: Thursday, December 13, 2001 4:10 AM
To: Edward Alfert
Subject: Re: [parisc-linux] What keywords should I use to find the
answer?


On Thursday 13 December 2001 05:42, Edward Alfert wrote:
> ?) Does 0.9.3 support the graphics card on a c240? Or only serial?

Hi Edward,

You maybe should have mentioned the name of the graphic card in 
your machine.
Boot up in serial-console mode and give us the inventory listing (or the
whole
dmesg) which the pa-kernel prints right at the beginning.

Greetings,
Helge




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Date: 13 Dec 2001 07:21:01 -0700
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To: Matthew Wilcox <willy@debian.org>
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On Wed, 2001-12-12 at 22:20, Matthew Wilcox wrote:
> On Wed, Dec 12, 2001 at 07:41:57PM -0900, Tom wrote:
> > By all means, feel free to post corrections, either here or direct to
> > me, and I'll update it. Also, if someone can think of something else
> > useful for it, just ask... (Perhaps the minimum kernel revision needed?)
> 
> E, F, G, H, I class aren't supported straight off the CD; they require
> additional changes, AIUI.  Not to mention no support for their SCSI
> adapters.  K mostly works... similar problems to E.  D & R should work
> fine (problem with D class with remote management console).  735's FWDiff
> scsi doesn't work.

755 has the same FWDiff as the 735 (outfield) so it doesn't work either.

- Ryan

> -- 
> Revolutions do not require corporate support.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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Subject: Re: [parisc-linux] What keywords should I use to find the answer?
Date: Thu, 13 Dec 2001 15:30:11 +0100
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Hi Edward,

Hmm, I think we forgot to backport the stifb-PCI hack :-(

The reson behind this "I'm not trying to set up the PCI graphic 
card now... It would freeze your machine" message is, that
during the initialisation of the A4977A Visualize EG PCI card 
(which is often found in c3000 workstations) my machine
completely freezes.

Since you have another PCI card you should try a recent kernel 
from CVS which explicitly checks for this combination of c3000 and 
Visualize EG combo and avoids to initialize it. For all other 
combinations of workstations and graphic cards this check isn't 
done and the graphic card will be initialized.
(PS: This should be added to the 0.9.3 FAQ!)

Helge

On Thursday 13 December 2001 14:37, Edward Alfert wrote:
> Thanks for the reply... Following is the entire dmsg...
> I notice it twice says "I'm not trying to set up your PCI graphics card
> now... It would freeze your machine."
>
> Linux version 2.4.9-32 (root@paer) (gcc version 3.0.2 (Debian)) #1 Fri
> Nov 30 19
> .....
> STI PCI ROM enabled at 0xf1e00000
> PCI graphic ROM found at f1e00000 (2048 kB), fb @ f6000000 (32 MB)
> PCI region 0: f6000000 with 32768 kB
> PCI region 1: 00000000 with 0 kB
> PCI region 2: 00000000 with 0 kB
> PCI region 3: 00000000 with 0 kB
> PCI region 4: 00000000 with 0 kB
> PCI region 5: 00000000 with 0 kB
> PCI region 6: f1e00000 with 2048 kB
> PCI region 7: 00000000 with 0 kB
> PCI region 8: 00000000 with 0 kB
> PCI region 9: 00000000 with 0 kB
> PCI region 10: 00000000 with 0 kB
> PCI region 11: 00000000 with 0 kB
> Trying PCI STI ROM at f1e00000, PCI hpa at f6000000
> I'm not trying to set up the PCI graphic card now... It would freeze
> your machine
> Unable to handle STI device 'PCI device 103c:1008 (Hewlett-Packard
> Company)'
>....
> -----Original Message-----
> From: Helge Deller [mailto:helge.deller@sap.com]
> Sent: Thursday, December 13, 2001 4:10 AM
> To: Edward Alfert
> Subject: Re: [parisc-linux] What keywords should I use to find the
> answer?
>
> On Thursday 13 December 2001 05:42, Edward Alfert wrote:
> > ?) Does 0.9.3 support the graphics card on a c240? Or only serial?
>
> Hi Edward,
>
> You maybe should have mentioned the name of the graphic card in
> your machine.
> Boot up in serial-console mode and give us the inventory listing (or the
> whole
> dmesg) which the pa-kernel prints right at the beginning.
>
> Greetings,
> Helge



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i consider myself a newbie (but i'm willing to learn), so please cut me some
slack, but building the kernel didn't work for me.

this is what i did:
su
cd
mkdir source
ftp ftp.parisc-linux.org
user: anonymous
password: edward@alfert.com
cd cvs
get linux-latest.tar.gz     (also tried linux-2.4.16-pa19.tar.gz)
get palo-latest.tar.gz
quit

cd source

zcat linux-latest.tar.gz | tar -xf -    (nothing gets extracted)
zcat linux-2.4.16-pa19.tar.gz | tar -xv -    (nothing gets extracted)
zcat palo-latest.tar.gz | tar -xf -  (tons of files are extracted into palo
folder)

gunzip *
tar -tvf linux-latest.tar   (no files are listed)
tar -tvf linux-2.4.16-pa19.tar.gz   (no files are listed)
tar -tvf palo-latest.tar.gz   (tons of files are listed)

Why is the linux* files empty?  did i do something wrong?

----- Original Message -----
From: "Helge Deller" <helge.deller@sap.com>
To: "Edward Alfert" <edward@alfert.com>;
<parisc-linux@lists.parisc-linux.org>
Sent: Thursday, December 13, 2001 9:30 AM
Subject: Re: [parisc-linux] What keywords should I use to find the answer?


> Hi Edward,
>
> Hmm, I think we forgot to backport the stifb-PCI hack :-(
>
> The reson behind this "I'm not trying to set up the PCI graphic
> card now... It would freeze your machine" message is, that
> during the initialisation of the A4977A Visualize EG PCI card
> (which is often found in c3000 workstations) my machine
> completely freezes.
>
> Since you have another PCI card you should try a recent kernel
> from CVS which explicitly checks for this combination of c3000 and
> Visualize EG combo and avoids to initialize it. For all other
> combinations of workstations and graphic cards this check isn't
> done and the graphic card will be initialized.
> (PS: This should be added to the 0.9.3 FAQ!)
>
> Helge
>





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= 
= Why is the linux* files empty?  did i do something wrong?
= 

Bug in the script which creates them.  Should be a new tarball in
under an hour from now.

	-P



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On Thu, Dec 13, 2001 at 09:36:31AM -0700, Paul Bame wrote:
> = 
> = Why is the linux* files empty?  did i do something wrong?
> = 
> 
> Bug in the script which creates them.  Should be a new tarball in
> under an hour from now.

Sure it wasn't due to /var filling up last night?

-- 
Revolutions do not require corporate support.



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Alan Cox wrote:
> > And I have yet to see a PCI graphics board with universal/3.3V
> > connector.  Except for HP ones, that is.
> 
> You want 5v for the fan 8(

I'm told the "3.3v" vs "5v" only indicates which voltage is
used for signalling - not which power rail the card is using.
Some 3.3v cards pull power from the 5v rail and convert it to 3.3v
in order to get a "cleaner" or more accurate 3.3v than what
the PCI Spec (and some vendors) provides.

And for PCI 2.1, 3.3v power rail is optional.
That turned into a requirement for PCI 2.2 compliance.

(Caveat: this is all second hand info - I'm a SW dork - not HW eng.
  but I believe it's correct.)

grant



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Helge Deller wrote:
> (PS: This should be added to the 0.9.3 FAQ!)

(Re C3000/VizEG incompatibility and Vis-EG support on older boxes))

I'm almost done adding a note about that now.
Please review later today when the official website
has been updated.

thanks!
grant



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I just wanted to let you all know that I has 0.9.3 UP running on my
4-proc K410 (with network). I will attempt a MP boot once I'm able to
make apt-get to do what I like.  (Seems gzip is throwing a fit when 
uncompressing the package lists)

Thanks to all. Overall installation was easier than that of PPC Linux
and Alpha Linux when those distros were further along.
-- 
Richard "Trey" Hyde
Software Engineer
CNET Networks, Inc
US Channel Online
949.460.7801 x122




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"Richard \"Trey\" Hyde" wrote:
...
> Thanks to all. Overall installation was easier than that of PPC Linux
> and Alpha Linux when those distros were further along.

Well, that thanks should mostly go to the debian developers as a whole
for providing a better install process and to Richard Hirst for making it
work on parisc-linux (aka debian-hppa). It was non-trivial and has
been something he's been dealing with for about the past year.

grant



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Is something up with anonamous cvs access?  I get the following error when 
attempting to update my kernel tree:

angstrom:/usr/src/linux-2.4.16-pa16# cvs update -dP .
cvs [update aborted]: recv() from server cvs.parisc-linux.org: Connection 
reset by peer

I also noticed that the nightly snapshots are about 45 bytes long.

Thanks,
Sonny





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ok...was able to follow all the steps in creating the new kernel including
make oldconfig
make dep
make palo

now what? (this is where the Building the Kernel FAQ ends)

So from this point forward i'm guessing (trial and error)...

I rebooted and it still booted to the old kernel 2.4.9

i then manually moved /root/source/palo/lifimage to
/boot/vmlinux-2.4.16-pa19
then created link to it from vmlinux

I then rebooted and i get:
Opening /vmlinux
Opening /vmlinux-2.4.16-pa19
Couldn't grok your kernel executable format
ERROR: failed to load kernel

Now i know i shouldn't have manually moved the files over and there was a
correct way of doing this... but i looked in all docs i could find and can't
find the right way to move a new kernel into place from the new created
palo/lifimage

1) what is the right way?
2) how do i recover? do i interrup the boot process... interact with IPL and
pass some parameter to boot from the old kernel (that i left behind at
/boot/vmlinux-2.4.9)?

Thanks for all the previous help... i'm close but yet so far....

----- Original Message -----
From: "Paul Bame" <bame@fc.hp.com>
To: "Edward Alfert" <edward@alfert.com>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Thursday, December 13, 2001 11:36 AM
Subject: Re: [parisc-linux] What keywords should I use to find the answer?


> =
> = Why is the linux* files empty?  did i do something wrong?
> =
>
> Bug in the script which creates them.  Should be a new tarball in
> under an hour from now.
>
> -P
>




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On Thu, 13 Dec 2001, Edward Alfert wrote:
> ok...was able to follow all the steps in creating the new kernel including
> make oldconfig
> make dep
> make palo
>
> now what? (this is where the Building the Kernel FAQ ends)
>
> So from this point forward i'm guessing (trial and error)...
>
> I rebooted and it still booted to the old kernel 2.4.9
>
> i then manually moved /root/source/palo/lifimage to
> /boot/vmlinux-2.4.16-pa19
> then created link to it from vmlinux
>
> I then rebooted and i get:
> Opening /vmlinux
> Opening /vmlinux-2.4.16-pa19
> Couldn't grok your kernel executable format
> ERROR: failed to load kernel

Exactly what I had happen. Someone was nice enough to point out to me the
*right* way <g>...

In your linux root (with the Makefile) is vmlinux. Move that to
/boot/vmlinux-xxx, then edit palo.conf (second line has the kernel you're
wanting to boot by default). Then, run palo (gives you a two-line 'before'
and 'after' which should show the new kernel) and reboot.

> Now i know i shouldn't have manually moved the files over and there was a
> correct way of doing this... but i looked in all docs i could find and can't
> find the right way to move a new kernel into place from the new created
> palo/lifimage

Don't think there's any way other than manual - 'make install' isn't
working yet AFAIK.

Recover by using 'boot pri ipl' at the initial boto menu, then change your
kernel name to the last one you used.




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Thanks... This is fun... 

New kernel 2.4.19 is up and running... I'm able to use my monitor ...
Initially I couldn't log in but found in the FAQ that I needed to
"uncomment" tty0 from /etc/inittab ... By the way, there is no entry for
tty0 in /etc/inittab, so I created one... So the FAQ shouldn't read
"uncomment" but instead "create".

I'm now trying to get Xfree working... I know I ask a lot of questions,
but I promise to return the favor to other newbies that experience the
same problems as me.

I executed /usr/X11R6/bin/xf86config and set all the parameters for the
mouse, monitor, and graphics card... But it doesn't work... The screen
goes black (as if it was changing resolutions) then comes back to text
mode and dumps the messages.

I have included the contents of /var/log/XFree86.0.log in hopes that one
of you will guide me in the right direction...

The system is a C240 with FX4 video card (that's HP Visualize FX-4 with
18mb RAM) ... The GRAPHICS(4) is set to 1280 x 1024 @ 72Hz.

c240:~# cat /var/log/XFree86.0.log

This is a pre-release version of XFree86, and is not supported in any
way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
please check the latest version in the XFree86 CVS repository
(http://www.XFree86.Org/cvs)

XFree86 Version 4.1.0.1 / X Window System
(protocol Version 11, revision 0, vendor release 6510)
Release Date: xx August 2001
        If the server is older than 6-12 months, or if your card is
        newer than the above date, look for a newer version before
        reporting problems.  (See http://www.XFree86.Org/FAQ)
Build Operating System: Linux 2.4.9-pa79 parisc64 [ELF] 
(==) Log file: "/var/log/XFree86.0.log", Time: Thu Dec 13 22:59:57 2001
(==) Using config file: "/etc/X11/XF86Config"
Markers: (--) probed, (**) from config file, (==) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) ServerLayout "Simple Layout"
(**) |-->Screen "Screen 1" (0)
(**) |   |-->Monitor "Cornerstone p1500"
(**) |   |-->Device "HP Visualize FX4"
(**) |-->Input Device "Mouse1"
(**) |-->Input Device "Keyboard1"
(**) Option "AutoRepeat" "500 30"
(**) Option "XkbRules" "xfree86"
(**) XKB: rules: "xfree86"
(**) Option "XkbModel" "pc101"
(**) XKB: model: "pc101"
(**) Option "XkbLayout" "us"
(**) XKB: layout: "us"
(==) Keyboard: CustomKeycode disabled
(**) FontPath set to
"/usr/X11R6/lib/X11/fonts/misc/,/usr/X11R6/lib/X11/fonts/75
dpi/:unscaled,/usr/X11R6/lib/X11/fonts/100dpi/:unscaled,/usr/X11R6/lib/X
11/fonts
/Type1/,/usr/X11R6/lib/X11/fonts/Speedo/,/usr/X11R6/lib/X11/fonts/75dpi/
,/usr/X1
1R6/lib/X11/fonts/100dpi/"
(**) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(--) using VT number 2

(WW) Cannot open APM
(II) PCI: PCI scan (all values are in hex)
(II) PCI: 00:13:0: chip 1000,000f card 0000,0000 rev 04 class 01,00,00
hdr 00
(II) PCI: 00:14:0: chip 1011,0019 card 103c,104f rev 30 class 02,00,00
hdr 00
(II) PCI: 01:04:0: chip 103c,1008 card 0000,0000 rev 02 class 03,80,00
hdr 00
(II) PCI: End of PCI scan
(II) Host-to-PCI bridge:
(II) Host-to-PCI bridge:
(II) Bus 0: bridge is at (0:0:0), (-1,0,0), BCTRL: 0x00 (VGA_EN is
cleared)
(II) Bus 0 I/O range:
        [0] -1 0        0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 0 non-prefetchable memory range:
        [0] -1 0        0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 0 prefetchable memory range:
        [0] -1 0        0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 1: bridge is at (0:0:0), (-1,1,0), BCTRL: 0x00 (VGA_EN is
cleared)
(II) Bus 1 I/O range:
        [0] -1 0        0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 1 non-prefetchable memory range:
        [0] -1 0        0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 1 prefetchable memory range:
        [0] -1 0        0x00000000 - 0xffffffff (0x0) MX[B]
(--) PCI: (1:4:0) HP unknown chipset (0x1008) rev 2, Mem @
0xf6000000/25, BIOS @
 0xf1e00000/21
(II) Addressable bus resource ranges are
        [0] -1 0        0x00000000 - 0xffffffff (0x0) MX[B]
        [1] -1 0        0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) OS-reported resource ranges:
        [0] -1 0        0xffffffff - 0xffffffff (0x1) MX[B]
        [1] -1 0        0x00000000 - 0x00000000 (0x1) MX[B]
        [2] -1 0        0x0000ffff - 0x0000ffff (0x1) IX[B]
        [3] -1 0        0x00000000 - 0x00000000 (0x1) IX[B]
(II) Active PCI resource ranges:
        [0] -1 0        0xf2fff000 - 0xf2fff07f (0x80) MX[B]
        [1] -1 0        0xf2ffe000 - 0xf2ffefff (0x1000) MX[B]
        [2] -1 0        0xf2ffd000 - 0xf2ffd0ff (0x100) MX[B]
        [3] -1 0        0xf1e00000 - 0xf1ffffff (0x200000) MX[B](B)
        [4] -1 0        0xf6000000 - 0xf7ffffff (0x2000000) MX[B](B)
        [5] -1 0        0x0000ff00 - 0x0000ff7f (0x80) IX[B]
        [6] -1 0        0x0000fe00 - 0x0000feff (0x100) IX[B]
(II) Active PCI resource ranges after removing overlaps:
        [0] -1 0        0xf2fff000 - 0xf2fff07f (0x80) MX[B]
        [1] -1 0        0xf2ffe000 - 0xf2ffefff (0x1000) MX[B]
        [2] -1 0        0xf2ffd000 - 0xf2ffd0ff (0x100) MX[B]
        [3] -1 0        0xf1e00000 - 0xf1ffffff (0x200000) MX[B](B)
        [4] -1 0        0xf6000000 - 0xf7ffffff (0x2000000) MX[B](B)
        [5] -1 0        0x0000ff00 - 0x0000ff7f (0x80) IX[B]
        [6] -1 0        0x0000fe00 - 0x0000feff (0x100) IX[B]
(II) OS-reported resource ranges after removing overlaps with PCI:
        [0] -1 0        0xffffffff - 0xffffffff (0x1) MX[B]
        [1] -1 0        0x00000000 - 0x00000000 (0x1) MX[B]
        [2] -1 0        0x0000ffff - 0x0000ffff (0x1) IX[B]
        [3] -1 0        0x00000000 - 0x00000000 (0x1) IX[B]
(II) All system resource ranges:
        [0] -1 0        0xffffffff - 0xffffffff (0x1) MX[B]
        [1] -1 0        0x00000000 - 0x00000000 (0x1) MX[B]
        [2] -1 0        0xf2fff000 - 0xf2fff07f (0x80) MX[B]
        [3] -1 0        0xf2ffe000 - 0xf2ffefff (0x1000) MX[B]
        [4] -1 0        0xf2ffd000 - 0xf2ffd0ff (0x100) MX[B]
        [5] -1 0        0xf1e00000 - 0xf1ffffff (0x200000) MX[B](B)
        [6] -1 0        0xf6000000 - 0xf7ffffff (0x2000000) MX[B](B)
        [7] -1 0        0x0000ffff - 0x0000ffff (0x1) IX[B]
        [8] -1 0        0x00000000 - 0x00000000 (0x1) IX[B]
        [9] -1 0        0x0000ff00 - 0x0000ff7f (0x80) IX[B]
        [10] -1 0       0x0000fe00 - 0x0000feff (0x100) IX[B]
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
        mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI,
mgag400
(II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,
        pm2, pm, 300sx, 500tx, mx, delta
        S3VIdentify
(II) S3VIRGE: driver (version 1.6.0) for S3 ViRGE chipsets: virge,
86C325,
        virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
        86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
        trio 3d/2x, 86C362, 86C368
(II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
        SIS300, SIS630, SIS540
(II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
        Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
        Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133,
Twister,
        TwisterK
(II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320,
cyber9388,
        cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
        tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
        providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985,
blade3d,
        cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
        cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520,
ct65525,
        ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
        ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
        3dfx Voodoo3, 3dfx Voodoo5
(II) FBDev: driver for framebuffer: fbdev, afb
(II) ATI: ATI driver (version 6.3.6) for chipsets: ati
(II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
        ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK
(PCI),
        ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
        ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
        ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
        ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
        ATI Rage 128 Mobility ML (AGP)
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
        ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
        ATI Radeon VE (AGP)
(II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,
        imstt3d
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) v4l driver for Video4Linux
        S3VProbe begin
(EE) No devices detected.

Fatal server error:
no screens found

When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to submit@bugs.debian.org.




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Subject: Re: [parisc-linux] anon cvs
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Sonny Cook wrote:
> Is something up with anonamous cvs access?  I get the following error when 
> attempting to update my kernel tree:
> 
> angstrom:/usr/src/linux-2.4.16-pa16# cvs update -dP .
> cvs [update aborted]: recv() from server cvs.parisc-linux.org: Connection 
> reset by peer

I got (nearly) the same error but realized I was using puffin.external.hp.com
server which is wrong. You have the right server.
I fixed the Root files in my local tree and all was well.

> I also noticed that the nightly snapshots are about 45 bytes long.

That was a bug in the scripts. Paul Bame fixed that yesterday.
2.4.16-pa19 should be ok - at least it was last night.

hth,
grant



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"Edward Alfert" wrote:
> Thanks... This is fun... 

cool!

> New kernel 2.4.19 is up and running... I'm able to use my monitor ...
> Initially I couldn't log in but found in the FAQ that I needed to
> "uncomment" tty0 from /etc/inittab ... By the way, there is no entry for
> tty0 in /etc/inittab, so I created one... So the FAQ shouldn't read
> "uncomment" but instead "create".

I punt. Met my web site hacking quota for the day...some substantial
updates to the 0.9.3 errata:
	http://www.parisc-linux.org/release-0.9/errata-093.html

(You do want to know how to avoid file corruption right?)

> The system is a C240 with FX4 video card (that's HP Visualize FX-4 with
> 18mb RAM) ... The GRAPHICS(4) is set to 1280 x 1024 @ 72Hz.

I don't think FX-4 is supported yet. Helger Deller or Thomas Bogendoerf
should be able to confirm in a few hours if no one else can.
Looks like we could use a seperate table for unsupported IO devices
and supported gfx on:
	http://www.parisc-linux.org/release-0.9/systems-093.html

grant



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Xref: news.gmane.org gmane.linux.ports.parisc:13350

Ok... So I'm experimenting with leaving the fx4 for booting and
interacting in text mode (/dev/tty0) and then I installed a PCI voodoo 3
in graphics pci slot number 1.   the fx4 is in slot 4.

I reran /usr/X11R6/bin/xf86config and entered the new information.

When executing startx, it probes the hardware and sees both the FX4
(which it doesn't know what it is), and it also sees the Voodoo 3 which
it identifies correctly.

But it still fails to start the server.  Same error messages:
       (EE) No devices detected.
       Fatal server error:
       no screens found

Any ideas if this is possible.. Have 2 video cards and use the supported
one for gui?

> 
> > The system is a C240 with FX4 video card (that's HP Visualize FX-4 
> > with 18mb RAM) ... The GRAPHICS(4) is set to 1280 x 1024 @ 72Hz.
> 
> I don't think FX-4 is supported yet. Helger Deller or Thomas 
> Bogendoerf should be able to confirm in a few hours if no one 
> else can. Looks like we could use a seperate table for 
> unsupported IO devices and supported gfx on:
> 	http://www.parisc-linux.org/release-0.9/systems-093.html
> 




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Hi Everyone,

I just d/led and burnt 0.9.3 iso and in my excitement I've stuck the CD in
booted and it's worked!

Problem is now that I'm being asked were the install files are on the
cdrom.. but I have no idea...

what's the file system look like I'm installing serial on a 715/64.

If I don't hear from anyone, I guess I'll just have to restart the install
and check the file system on another computer.. :)

Pete




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] dumb question.. :(
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On Fri, Dec 14, 2001 at 05:31:12PM +1100, Peter Lavender wrote:
> Hi Everyone,
> 
> I just d/led and burnt 0.9.3 iso and in my excitement I've stuck the CD in
> booted and it's worked!
> 
> Problem is now that I'm being asked were the install files are on the
> cdrom.. but I have no idea...

Generally speaking, just hit return to most of those confusing
questions when doing a CD install.  The exception is that on
one screen you'll be offered two choices of kernel/modules, one for
32 bit and one for 64.  Make sure you pick the right one.  If you
are not sure which was booted, you could scroll down to 'execute a
shell' on the menu and do 'uname -a' (or Alt-F2 if on graphics console).
You may also get asked about installing woody or sid; choose woody,
which is the first option, so again <return> does the right thing.

I've just heard that adding 'cdrom' as a boot option makes some of
this confusion go away, but I havn't investigated yet.

Richard




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Hi folks,

First of all, thanks for all the hard work that has gone into 0.9.3. Excellent!

I've got a couple of observations and/or questions. Apologies for the lack
of dmesg output etc. - I'm at work and the workstation is at home.
I have a B132L, with the Visualize EG, GRAPHICS(0), on board frame buffer
(that's Gecko, if I'm not mistaken) and a 4071B in the GSC slot, GRAPHICS(2)
(this thing is Coral in the dmesg output I believe).

Previously, when playing around with 0.9.2 I had set the display path to
GRAPHICS(0), as the 4071B was unsupported. As it turned out, the PS/2
keyboard problems forced me to use a serial console in the end anyway, but
at least the EG seemed to be supported.

So yesterday I booted up 0.9.3 in this configuration. The messages started
to appear on the screen, then stopped after the 'if you don't see anything
more' message. In a flash of inspiration, I moved the monitor cable to the
4071B, and lo and behold, all the output was there! The dmesg shows that
its finding the 4071B before the EG, and using that as the console display
even though the display path is set to GRAPHICS(0). Is this expected behaviour
at this point in time, or is there something fishy going on.

Switching the display path to GRAPHICS(2) fixed things - 0.9.3 booted and
displayed on the 4071B.

So far so good. Installation seemed to go mostly ok - I have two disks on
the FW-Diff controller in this box. I guess I should be specifying the
burst:3 parameter to avoid disk corruption.

The other problem I've experienced is keyboard lockup with the message
'LASI PS/2 keyboard timeout' scrolling up the screen. I was using a
generic PS/2 keyboard at the time. Seems to kick in when the machine
is installing from the cd and I'm messing about on another virtual
console - although that is really just speculation. I can stick the B132L
on the net tonight and log in to see what's going on next time the lockup
occurs - anything in particular I should be looking for?

Regards,

-Andy

------------------------------------------------------------
F din egen @start.no-adresse gratis p http://www.start.no/



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From: "Tommi Aihkisalo" <tommi.aihkisalo@vtt.fi>
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Hello all!

I am having a problem with my 712/80 when booting with bootp/tftp. With some
effort I got it requesting kernel image (lifimage) over the network. The
download starts but almost the same time it ends and it retries it over and
over again. With Weird-solution's bootp and tftp server I can see that the
download starts many times but all of them results error. When using the
RedHat's bootp/tftp, the tcpdump shows (what I have understood from the
output) that the HP is querying a file of name '.' (dot), this is quite
strange...

Have I understood correctly that the lifimage (from the 0.9.3 installation
cd) is the correct kernel image?

Tommi Aihkisalo
VTT Electronics @ Raahe

- ERROR 406: file corrupt: config.earth --- reboot universe? (Y/N)




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Hello Tommi

On Fri, 14 Dec 2001, Tommi Aihkisalo wrote:

> Hello all!
>
> I am having a problem with my 712/80 when booting with bootp/tftp. With some
> effort I got it requesting kernel image (lifimage) over the network. The

[SNIP]

I too have just tried a net boot of 0.9.3 from a remote location and also
failed. I noticed MUCH too late that the lifimage contains the following
files:

    0/vmlinux32 3122078 bytes @ 0x7800
    0/vmlinux64 3990942 bytes @ 0x302000
    0/ramdisk 1946807 bytes @ 0x6d0800

But PALO chooses a default kernel path of

    0/linux

I assume that is simply that the PALO definition in the lifimage is
incorrect. Once I get my remote button pusher to power cycle the system
for me (she is out shopping right now) I will try an interactive boot &
change the command line to boot the correct kernel.

If you get chance to try this before me then please let me know how it
goes.

Cheers
PeteM




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Quoting "James P. Kinney III" <jkinney@localnetsolutions.com>:

> Andy,
>
> This is great news! I have a C160 with the A4071B_LZ graphics card in
> slot 3. I get nada once the "you may not see anything beyond this
> point
> message" is done :( . So _please_ send details on command line and
> config to the group. I would like to get the serial console off my
> desk
> and use this huge 4033A monitor.
>

Hi James,

I just borrowed a C110 with an A4071B in slot 3. Booting from the
CD with all default parameters seemed to work fine for me. This is
the only graphics device in the C110, so there's no room for confusion
there. Typing 'pa con' in the PDC gives:

    Console path:       GRAPHICS3

Don't know the exact model of the A4071B (LZ etc.) - the one in the
B132L has a kind of daughter board, the one in the C110 doesn't.
Both seem to work fine.

Another point - I was playng with a 725/100 as well today. The
internal disk is a FW-Diff connected to a Bluefish card. it
exhibits the nasty timeout/lockup/reset behaviour reported for
720's and 735's with the sym58c720 interface when the disk is
attached. My current plan is to boot on a SE disk and to try
an AHA-2744W in an EISA slot for the FW-Diff disk. Will this
work?

Regards,

-Andy



------------------------------------------------------------
F din egen @start.no-adresse gratis p http://www.start.no/


------------------------------------------------------------
F din egen @start.no-adresse gratis p http://www.start.no/



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Xref: news.gmane.org gmane.linux.ports.parisc:13357

I tried messing as per my previous mail but the net boot fails miserably.
I get the following output in the console (some lines truncated beyond my
control).....

Edit which field?
(or 'b' to boot with this command line)? b

Command line for kernel: 'ncr53c8xx=burst:3 HOME=/ root=/dev/ram
console=ttyS0 '
Selected kernel: /vmlinux32 from partition 0
Selected ramdisk: /ramdisk from partition 0

ERROR: Read from boot device failed (status = -3).
byteio_read: seekread() returned -1 expected 2048

ERROR: Read from boot device failed (status = -3).
byteio_read: seekread() returned -1 expected 2048
                                             Couldn't grok your kernel exect
ERROR: failed to load kernel


I will try again later with a lifimage from 0.9.2 as I used that some time
ago without any problems.

PeteM

On Fri, 14 Dec 2001, Peter Mottram wrote:

> Hello Tommi
>
> On Fri, 14 Dec 2001, Tommi Aihkisalo wrote:
>
> > Hello all!
> >
> > I am having a problem with my 712/80 when booting with bootp/tftp. With
> > some effort I got it requesting kernel image (lifimage) over the
> > network. The
>
> [SNIP]
>
> I too have just tried a net boot of 0.9.3 from a remote location and also
> failed. I noticed MUCH too late that the lifimage contains the following
> files:
>
>     0/vmlinux32 3122078 bytes @ 0x7800
>     0/vmlinux64 3990942 bytes @ 0x302000
>     0/ramdisk 1946807 bytes @ 0x6d0800
>
> But PALO chooses a default kernel path of
>
>     0/linux
>
> I assume that is simply that the PALO definition in the lifimage is
> incorrect. Once I get my remote button pusher to power cycle the system
> for me (she is out shopping right now) I will try an interactive boot &
> change the command line to boot the correct kernel.
>
> If you get chance to try this before me then please let me know how it
> goes.
>
> Cheers
> PeteM





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It looks like my problems are simply down to supplying the NCR overflow
fix parameter. Without that I can boot & install without problems.

Let's just hope I can get away with an install without too many problems &
then go for a fixed kernel later.

PeteM

On Fri, 14 Dec 2001, Peter Mottram wrote:

> I tried messing as per my previous mail but the net boot fails miserably.
> I get the following output in the console (some lines truncated beyond my
> control).....
>
> Edit which field?
> (or 'b' to boot with this command line)? b
>
> Command line for kernel: 'ncr53c8xx=burst:3 HOME=/ root=/dev/ram
> console=ttyS0 '
> Selected kernel: /vmlinux32 from partition 0
> Selected ramdisk: /ramdisk from partition 0
>
> ERROR: Read from boot device failed (status = -3).
> byteio_read: seekread() returned -1 expected 2048
>
> ERROR: Read from boot device failed (status = -3).
> byteio_read: seekread() returned -1 expected 2048
>                                              Couldn't grok your kernel exect
> ERROR: failed to load kernel
>
>
> I will try again later with a lifimage from 0.9.2 as I used that some time
> ago without any problems.
>
> PeteM
>
> On Fri, 14 Dec 2001, Peter Mottram wrote:
>
> > Hello Tommi
> >
> > On Fri, 14 Dec 2001, Tommi Aihkisalo wrote:
> >
> > > Hello all!
> > >
> > > I am having a problem with my 712/80 when booting with bootp/tftp. With
> > > some effort I got it requesting kernel image (lifimage) over the
> > > network. The
> >
> > [SNIP]
> >
> > I too have just tried a net boot of 0.9.3 from a remote location and also
> > failed. I noticed MUCH too late that the lifimage contains the following
> > files:
> >
> >     0/vmlinux32 3122078 bytes @ 0x7800
> >     0/vmlinux64 3990942 bytes @ 0x302000
> >     0/ramdisk 1946807 bytes @ 0x6d0800
> >
> > But PALO chooses a default kernel path of
> >
> >     0/linux
> >
> > I assume that is simply that the PALO definition in the lifimage is
> > incorrect. Once I get my remote button pusher to power cycle the system
> > for me (she is out shopping right now) I will try an interactive boot &
> > change the command line to boot the correct kernel.
> >
> > If you get chance to try this before me then please let me know how it
> > goes.
> >
> > Cheers
> > PeteM
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>





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From: Phil Anderson <andersop@neverland.ncssm.edu>
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Subject: 735 and SCSI (was: Re: [parisc-linux] Firmware upgraded, STI console
 problem)
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To: Ryan Bradetich <rbradetich@uswest.net>
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On 13 Dec 2001, Ryan Bradetich wrote:

> On Wed, 2001-12-12 at 22:20, Matthew Wilcox wrote:
> > On Wed, Dec 12, 2001 at 07:41:57PM -0900, Tom wrote:
> > > By all means, feel free to post corrections, either here or direct to
> > > me, and I'll update it. Also, if someone can think of something else
> > > useful for it, just ask... (Perhaps the minimum kernel revision needed?)
> >
> > E, F, G, H, I class aren't supported straight off the CD; they require
> > additional changes, AIUI.  Not to mention no support for their SCSI
> > adapters.  K mostly works... similar problems to E.  D & R should work
> > fine (problem with D class with remote management console).  735's FWDiff
> > scsi doesn't work.
>
> 755 has the same FWDiff as the 735 (outfield) so it doesn't work either.


So that would explain why none my 735's can detect hard drives.

I can boot off a CD on the regular scsi, and even though the boot_admin
will detect my disks debian won't.

so has _anyone_ gotten a 735 working or anything? I have 7 of them that
are taking up space in my dorm room, and two 755's under the desk that
server the same purpose...

-phil






>
> - Ryan
>
> > --
> > Revolutions do not require corporate support.
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>

-- 
===============================================================================

Phil Anderson
UNIX Systems Administrator
andersop@neverland.ncssm.edu
The_13th_Ewok@hotmail.com

"Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson




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Subject: [parisc-linux] Hardware? nothing boots.
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I was installing 0.9.3. Serial console installation. For some reason, my
keyboard is seen as sending double carriage returns in palinux. This is,
of course, a major problem during the config process. I got as far as
the second stage "you have a minimal system", had
downloaded/apt-get/CD'ed EVERYTHING since I can't select from the menu's
with the keyboard. During the dpkg configure all this stuff phase, I got
stuck. tab wouldn't advance me to the next control item and I would up
with a "help" screen that would only close with an "enter" which doubles
and reopens the same help screen. Aargh!

So I hit the power switch after about an hour of trying everything I can
find.

Big problems. No console. No keyboard. The boot process hangs and has
every status light on but the heartbeat. The big monitor has a video
signal, but no text. The serial console monitor is on, blinking curser.
It responds keyboard (echos to screen).

Any suggestions?
--=20
James P. Kinney III   \Changing the mobile computing world/
President and COO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint =3D 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7=20



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Subject: Re: 735 and SCSI (was: Re: [parisc-linux] Firmware upgraded, STI console problem)
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On Fri, Dec 14, 2001 at 01:58:03PM -0500, Phil Anderson wrote:
> so has _anyone_ gotten a 735 working or anything? I have 7 of them that
> are taking up space in my dorm room, and two 755's under the desk that
> server the same purpose...

I believe some people have had 735 working using narrow SE disks on
the same i/f as the CD.

Richard




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= Big problems. No console. No keyboard.

And no information.  What kind of parisc box?  What is your
serial console?  Terminal?  Terminal software?  What kind?  etc


	-P



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Oops. I forgot to include the details.

C160, HP 700/96 console. The big monitor is a 4033A connected to a
4071B_LZ graphics card. I don't have an adapter for the onboard Gecko
graphics. I have yet to get console on the STI graphics.

The box is booting now. (???) I can ping it and it has a heartbeat. No
screen access or keyboard. I've tried moving the console to serial_2 on
the box. No luck.=20

On Fri, 2001-12-14 at 18:41, Paul Bame wrote:
> =3D Big problems. No console. No keyboard.
>=20
> And no information.  What kind of parisc box?  What is your
> serial console?  Terminal?  Terminal software?  What kind?  etc
>=20
>=20
> 	-P
--=20
James P. Kinney III   \Changing the mobile computing world/
President and COO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
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OK. After some brain dead moments with minicom (reset after changing com
ports!) I'm into the C160. I think the 700/96 just died. Not sure yet.

BTW. 0.9.3 is overall very well done. Many thanks to those who made it
happen.=20

On Fri, 2001-12-14 at 18:53, James P. Kinney III wrote:
> Oops. I forgot to include the details.
>=20
> C160, HP 700/96 console. The big monitor is a 4033A connected to a
> 4071B_LZ graphics card. I don't have an adapter for the onboard Gecko
> graphics. I have yet to get console on the STI graphics.
>=20
> The box is booting now. (???) I can ping it and it has a heartbeat. No
> screen access or keyboard. I've tried moving the console to serial_2 on
> the box. No luck.=20
>=20
> On Fri, 2001-12-14 at 18:41, Paul Bame wrote:
> > =3D Big problems. No console. No keyboard.
> >=20
> > And no information.  What kind of parisc box?  What is your
> > serial console?  Terminal?  Terminal software?  What kind?  etc
> >=20
> >=20
> > 	-P
> --=20
> James P. Kinney III   \Changing the mobile computing world/
> President and COO      \          one Linux user         /
> Local Net Solutions,LLC \           at a time.          /
> 770-493-8244             \.___________________________./
>=20
> GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
> <jkinney@localnetsolutions.com>
> Fingerprint =3D 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7=20
>=20
>=20
--=20
James P. Kinney III   \Changing the mobile computing world/
President and COO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
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> I've just heard that adding 'cdrom' as a boot option makes some of
> this confusion go away, but I havn't investigated yet.
>

I have it installed now.. :)

Put it down to a first time debian install too.  I was able to browse the
directory tree on the CD once I hit the <...>.

Thanks.

The installation really is simple and straight forward.  It's not time I
learn how to use debian and it's package manager.  I d/led the the base
install ISO, and now want to get apache on it.. :)

Pete




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From: Joerg Hartmann <J.Hartmann@reinarts.de>
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Subject: [parisc-linux] gcc on 0.9.3 iso problem
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Hello PARISC-Linux users,

i installed the debian ISO Version 0.9.3 on a hp9000/720
including the gcc (version 3.0.2).

But if i try to use this gcc i always get an error

hp-tux:/usr/src/samba-2.2.2/source# ./configure
creating cache ./config.cache
checking for gcc... gcc
checking whether the C compiler (gcc -O  ) works... no
configure: error: installation or configuration problem:
           C compiler cannot create executables.

Could someone please explains whats wrong here ?
Do i need another gcc ?
But if so, why is this gcc on the cd ?

Thanks .

-- 
Best regards,
 Joerg                          J.Hartmann@reinarts.de




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Hi,

     I was trying to install parisc-linux version 9.3 on my B180L machine. I was
     trying this through CD [I burned my CD]. While installing ... I faced following problems , can anybody help :

     1. at the time of Installing kernel and driver modules, it use to give 
	fatal error sometimes [a couple of times it passed too].. 
     2. This one is consistent, while installing the base system, it was always
	failing and use to give dump with error message saying 
	"console.data-........ scsi1:(2:0) Fatal Error : Not MSG_IN after
	selection .. Bus reset detected ..." etc. etc.


	A couple of times it tried to find out floppy drive too [ it is not there]
	and use to give dump when it doesn't find that drive, well, this is 
	while installing rescue.bin only.

	Can anybody tell me why these errors come and how can I solve them...

Regards.
Maneesh






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> But if i try to use this gcc i always get an error
> 
> hp-tux:/usr/src/samba-2.2.2/source# ./configure
> creating cache ./config.cache
> checking for gcc... gcc
> checking whether the C compiler (gcc -O  ) works... no
> configure: error: installation or configuration problem:
>            C compiler cannot create executables.

Look for a config.log file in the directory. The log should show what is
wrong.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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>> hp-tux:/usr/src/samba-2.2.2/source# ./configure
>> creating cache ./config.cache
>> checking for gcc... gcc
>> checking whether the C compiler (gcc -O  ) works... no
>> configure: error: installation or configuration problem:
>>            C compiler cannot create executables.

RC> Look for a config.log file in the directory. The log should show what is
RC> wrong.

The problem is a missing "crt1.o"

# gcc -o conftest -O    conftest.c  1>&5
/usr/bin/ld: cannot open crt1.o: No such file or directory
collect2: ld returned 1 exit status

I have the same error with hello_world.c .
As i am not a c-coder this i a real problem for me ...
I know this is not PA-RISC Linux specific nor is it samba specific.
It's just a problem with the gcc from the 0.9.3 ISO (i think).

Maybe someone can explain, what i am doing wrong here ?
I have installed gcc from the CD with "apt-get install gcc"
and i thought it has been installed with all the files it depends on,
because there was no error message while i was doing it.

-- 
Best regards,
 Joerg                            J.Hartmann@reinarts.de




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> The problem is a missing "crt1.o"

apt-get install libc6-dev

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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On Sat, Dec 15, 2001 at 07:34:48PM +0100, Joerg Hartmann wrote:
> Maybe someone can explain, what i am doing wrong here ?
> I have installed gcc from the CD with "apt-get install gcc"

apt-get install libc6-dev ? gcc is the compiler but you want a C library
for your C programs.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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Maneesh Singhal wrote:
>      1. at the time of Installing kernel and driver modules, it use to give 
> 	fatal error sometimes [a couple of times it passed too].. 
>      2. This one is consistent, while installing the base system, it was alwa
>   ys
> 	failing and use to give dump with error message saying 
> 	"console.data-........ scsi1:(2:0) Fatal Error : Not MSG_IN after
> 	selection .. Bus reset detected ..." etc. etc.

Can you use a serial console, capture the output, and post that here?

Also, please read the errata (link is on the 0.9 release page)

grant



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Hello Maneesh,

>        selection .. Bus reset detected ..." etc. etc.

This sound like a problem I met a time ago: the scsi chain was opened
(ie during test I forgot to reconnect the scsi terminator to my external
drive).

If a scsi terminator is well connected may be could it be defective (or
a one not corresponding to your scsi interface logicaly Single-Ended if
your CD is connected to the narrow single-ended conector)?

Good luck,
	Joel



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I case anyone cares, 0.9.3 works great w/ a J2240 so far.  I still can't
get it to "see" the graphics head, but I haven't tried real hard w/
0.9.3 yet.





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This is a multi-part message in MIME format.
--------------020905020905010301050705
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 8bit

Hi there,

I have a question concerning the StiFB. I have  715/100 with two 
graphics cards, a built-in one and a HCRX-24 (listed by the kernel as 
Coral SGC). How can I change the device of the StiFB?
I tried sti=0 and sti=1 as boot parameter, but nothing happens. The 
console always opens on the fb0-device (the HCRX-24). I also tried 
video=map:x , which caused a crash right after palo loaded the kernel.
But I can use the built-in card with XFree86. If I add the line  
"fbdevice" "/dev/fb1" to XF86Config, then XFree starts on the built-in card.
Can somebody help me ? The Resolution of the HCRX (1280x1024) is a 
little bit to high for my 17"-Monitor (The font is so small...)

Another problem : Using mpg321 from the 0.9.3 release gives me  the 
failure "Illegal instruction". Glibc-Version is 2.2.4-7. The stack dump 
is in the attached boot.log-file.

And a last question (a little OT): I want to buy a CD-ROM for my box. 
Which one fits the bay with the panel? I tried a Plextor TS-40, but it 
was a bit to large.

Rdiger

--------------020905020905010301050705
Content-Type: text/plain;
 name="boot.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="boot.log"

Linux version 2.4.16-pa20 (ruediger@gandalf) (gcc version 3.0.2 (Debian)) #1 Sun Dec 16 14:09:47 CET 2001
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 000060b0 00000481 00000000 00000000 77b661a7 00000000 00000004 00000072 00000072
vers  0000000b
model 9000/715
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda4 HOME=/ console=tty0 sti=0 sti_font=VGA8x16 TERM=linux
Console: colour dummy device 160x64
Calibrating delay loop... 99.73 BogoMIPS
Memory: 126152k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf4000000 [0], versions 0x4, 0x0, 0x77
2. Mirage GSC Builtin Graphics (10) at 0xf8000000 [1], versions 0x13, 0x0, 0x85
3. Mirage Core BA (11) at 0xf0100000 [2], versions 0x29, 0x0, 0x81
4. Mirage Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x29, 0x0, 0x82
5. Mirage Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x29, 0x0, 0x8a
6. Mirage Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x29, 0x0, 0x8c
7. Mirage Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x29, 0x0, 0x74
8. Mirage Audio (10) at 0xf0104000 [2/0/8], versions 0x29, 0x0, 0x7b
9. Mirage Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x29, 0x0, 0x83
10. Mirage Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x29, 0x0, 0x84
11. Mirage Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x29, 0x0, 0x84
12. Mirage Wax BA (11) at 0xf0200000 [5], versions 0x13, 0x0, 0x8e
13. Mirage 100 Wax HIL (10) at 0xf0201000 [5/0/1], versions 0x13, 0x0, 0x73
14. Mirage Wax RS-232 (10) at 0xf0202000 [5/0/2], versions 0x13, 0x0, 0x8c
15. Mirage 100 (0) at 0xfffbe000 [8], versions 0x60b, 0x0, 0x4
16. Mirage 100 (1) at 0xfffbf000 [9], versions 0x4b, 0x0, 0x9
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
Lasi version 0 at 0xf0100000 found.
LED display at f00e0000 registered
Wax at 0xf0200000 found.
Wax: HIL Keyboard-NMI registered.
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Enabled gecko-style soft power switch.
Starting kswapd
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
Trying STI ROM at f4000000, hpa at f4000000
STI byte mode ROM at f4000000, hpa=f4000000
selected 8x16 fb-font VGA8x16
STI byte mode ROM, id 2bcb015a-9a02587, conforms to spec rev. 8.04
 supports 3 monitors
 font start 00003f74
 region list 00003f58
 init_graph 000000d8
 alternate code type 0
region #0: phys f4000000, virt f4000000, len=768kB, btlb=1, sysonly=0, cache=0, last=0
region #1: phys f5000000, virt f5000000, len=16384kB, btlb=1, sysonly=0, cache=0, last=0
region #2: phys f4100000, virt f4100000, len=2560kB, btlb=1, sysonly=0, cache=0, last=0
region #3: phys f40c0000, virt f40c0000, len=256kB, btlb=1, sysonly=0, cache=0, last=0
region #4: phys f4c00000, virt f4c00000, len=4096kB, btlb=1, sysonly=0, cache=0, last=0
region #5: phys f4380000, virt f4380000, len=4kB, btlb=0, sysonly=1, cache=0, last=1
3 text planes
1280 x 1024 screen resolution
   0 x    0 offscreen
2048 x 1024 layout
regions at f4000000 f5000000 f4100000 f40c0000
regions at f4c00000 f4380000 00000000 00000000
reent_lvl 0
save_addr 0006a400
monitor 3
in friendly mode: 0
power consumption 0 watts
freq ref 0
sti_mem_addr 005ef460 (size=256 bytes)
8 bits per pixel
8 used bits
24 planes
attributes 00003836
STI device: HPA4071A
Trying STI ROM at f8000000, hpa at f8000000
Trying STI ROM at f0024000, hpa at f8000000
STI word mode ROM at f0024000, hpa=f8000000
STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
 supports 13 monitors
 font start 000037d4
 region list 000037c0
 init_graph 00000808
 alternate code type 0
region #0: phys f0024000, virt f0024000, len=24kB, btlb=1, sysonly=0, cache=0, last=0
region #1: phys f9000000, virt f9000000, len=16384kB, btlb=1, sysonly=0, cache=0, last=0
region #2: phys f8100000, virt f8100000, len=2560kB, btlb=1, sysonly=0, cache=0, last=0
region #3: phys f8380000, virt f8380000, len=4kB, btlb=0, sysonly=1, cache=0, last=1
3 text planes
1024 x  768 screen resolution
   0 x    0 offscreen
2048 x 1024 layout
regions at f0024000 f9000000 f8100000 f8380000
regions at 00000000 00000000 00000000 00000000
reent_lvl 0
save_addr 0006a800
monitor 9
in friendly mode: 0
power consumption 0 watts
freq ref 0
sti_mem_addr 005ef660 (size=256 bytes)
8 bits per pixel
8 used bits
8 planes
attributes 00001836
STI device: HPA208LC1024
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio: 0xf4100000
fb1: stifb 1024x768-8 frame buffer device, id: 2b4ded6d, mmio: 0xf8100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0202800 (irq = 121) is a 16550A
PS/2 keyboard port at 0xf0108000 (irq 69) found, device attached.
PS/2 psaux port at 0xf0108100 (irq 69) found, device attached.
Found HIL at 0xf0201000, IRQ 126
HIL: no keyboard present.
Warning : device (10, 0x13, 0x0, 0x73) NOT claimed by HIL
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 7A DC 08 IRQ 87.
82596.c $Revision: 1.27 $
SCSI subsystem driver Revision: 1.00
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2 
scsi0 : LASI SCSI 53c700
scsi0: (6:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST32430N          Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
scsi0: (6:0) Enabling Tag Command Queuing
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
Lasi Harmony Audio rev. 18 at 0xf0104000, using IRQ 82
sticonsole_init: searching for STI ROMs
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     : 17177.600 MB/sec
   8regs_prefetch:    70.800 MB/sec
   32regs    :   118.400 MB/sec
   32regs_prefetch:   119.200 MB/sec
raid5: using function: 8regs (17177.600 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
NOT FREEING INITMEM
Adding Swap: 132920k swap-space (priority -1)
eth0: link ok.
Warning: Remapping obsolete /dev/fb* minor 32 to 1
mpg321 (pid 219): Privileged operation (code 10)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111000001111 Not tainted
r00-03  00000000 40028cc0 4000b947 00000081
r04-07  4026e3a4 402855d0 40257e84 0002fd90
r08-11  4025163c 40028544 faf03cc8 40257e84
r12-15  4024e000 00000080 4024f1dc 40253a30
r16-19  40028544 0000000c 00000000 40028544
r20-23  0000001b 00036b10 00000000 4024e000
r24-27  40284b10 00000081 40256e58 00027e50
r28-31  00000081 00000041 faf03e00 4000933f
sr0-3   00000018 00000018 00000000 00000018
sr4-7   00000018 00000018 00000018 00000018
IASQ: 00000018 00000018 IAOQ: 4000b66b 4000b66f
 IIR: 04000000    ISR: 00000018  IOR: 00000000
 CPU:        0   CR30: 16b40000 CR31: 10360000
 ORIG_R28: 00000000

--------------020905020905010301050705--




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> And a last question (a little OT): I want to buy a CD-ROM for my box.
> Which one fits the bay with the panel? I tried a Plextor TS-40, but it
> was a bit to large.
I was able to fit my 32x plextor "into" the same 715/100.
Had some trouble with the power connector, but it can be worked out. Try to
pull it out a bit
so it can be bent towards the right direction.
You might try to remove the metal "case" that holds the cd, put it in there
and screw
the metal case back w/ the cd-rom in it. I might be wrong about the exact
method because it was like 3-4 months ago, but the 32x plextor is still in
the 715/100 (and is working perfectly:)
good luck w/ the hw wrestling :)

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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: 735 and SCSI (was: Re: [parisc-linux] Firmware upgraded, STI
	console problem)
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On Fri, 2001-12-14 at 11:58, Phil Anderson wrote:
> On 13 Dec 2001, Ryan Bradetich wrote:
> 
> > On Wed, 2001-12-12 at 22:20, Matthew Wilcox wrote:
> > > On Wed, Dec 12, 2001 at 07:41:57PM -0900, Tom wrote:
> > > > By all means, feel free to post corrections, either here or direct to
> > > > me, and I'll update it. Also, if someone can think of something else
> > > > useful for it, just ask... (Perhaps the minimum kernel revision needed?)
> > >
> > > E, F, G, H, I class aren't supported straight off the CD; they require
> > > additional changes, AIUI.  Not to mention no support for their SCSI
> > > adapters.  K mostly works... similar problems to E.  D & R should work
> > > fine (problem with D class with remote management console).  735's FWDiff
> > > scsi doesn't work.
> >
> > 755 has the same FWDiff as the 735 (outfield) so it doesn't work either.
> 
> 
> So that would explain why none my 735's can detect hard drives.
> 
> I can boot off a CD on the regular scsi, and even though the boot_admin
> will detect my disks debian won't.
> 
> so has _anyone_ gotten a 735 working or anything? I have 7 of them that
> are taking up space in my dorm room, and two 755's under the desk that
> server the same purpose...

Yes,  I tested an early 0.9.3-rc image on the 755 using a single ended
disk on the 755.  The Hardball ERS is published at:
	http://parisc-linux.org/documentation/index.html

if you are interested in taking a stab at getting the FW scsi working :)

- Ryan


> -phil
> 
> 
> 
> 
> 
> 
> >
> > - Ryan
> >
> > > --
> > > Revolutions do not require corporate support.
> > >
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > >
> >
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
> 
> -- 
> ===============================================================================
> 
> Phil Anderson
> UNIX Systems Administrator
> andersop@neverland.ncssm.edu
> The_13th_Ewok@hotmail.com
> 
> "Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson
> 
> 





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Subject: Re: [parisc-linux] gcc on 0.9.3 iso problem
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Quoth Joerg Hartmann:
> hp-tux:/usr/src/samba-2.2.2/source# ./configure
> creating cache ./config.cache
> checking for gcc... gcc
> checking whether the C compiler (gcc -O  ) works... no
> configure: error: installation or configuration problem:
>            C compiler cannot create executables.
> 
> Could someone please explains whats wrong here ?

Randolph's already answered your question, but I just wanted to say that
I think your hostname is rather cool.  =)

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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Subject: [parisc-linux] what is palo/lifimage for ?
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Hello ,

yesterday i installed a new kernel for my 720.
And now it works :)
But there are some questions left ...

The "Building the Kernel" webpage at
http://www.parisc-linux.org/kernel/index.html says
after "make palo" you have your new kernel in the file palo/lifimage.
But there is no pointer what to do after this :(
After some reading in the mailinglist archive i installed
palo/lifimage in /boot, edited /etc/palo.conf and run palo.

Then i booted my 720 just to see the message
"Couldn't grok your kernel executable format
ERROR: failed to load kernel" .

Half an hour later i found (with the help of "file")
that palo/lifimage is not the kenel image to boot,
it is vmlinux in the kernel-source dir.

So here comes the question: What is palo/lifimage for, or what
am i supposed to do with it ?
Is there another how-to for making/installing new kernels ?

-- 
Best regards,
 Joerg                          J.Hartmann@reinarts.de




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hi
I have a 712/60 with 0.93 debian

when i launch startx message tell me that i haven't video card configured.
Were is the problem??
What I do to start the x system???


tegard






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From: Helge Deller <helge.deller@sap.com>
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Subject: Re: [parisc-linux] what is palo/lifimage for ?
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On Monday 17 December 2001 11:21, Joerg Hartmann wrote:
> Hello ,
>
> yesterday i installed a new kernel for my 720.
> And now it works :)
> But there are some questions left ...
>
> The "Building the Kernel" webpage at
> http://www.parisc-linux.org/kernel/index.html says
> after "make palo" you have your new kernel in the file palo/lifimage.
> But there is no pointer what to do after this :(
> After some reading in the mailinglist archive i installed
> palo/lifimage in /boot, edited /etc/palo.conf and run palo.
>
> Then i booted my 720 just to see the message
> "Couldn't grok your kernel executable format
> ERROR: failed to load kernel" .
>
> Half an hour later i found (with the help of "file")
> that palo/lifimage is not the kenel image to boot,
> it is vmlinux in the kernel-source dir.
>
> So here comes the question: What is palo/lifimage for, or what
> am i supposed to do with it ?
> Is there another how-to for making/installing new kernels ?

Hi Joerg,

palo/lifimage is the image for netbooting a kernel via tftp/bootp (it contains
parts of the palo bootloader binary).
linux/vmlinux is the kernel image for directly booting with palo from disk (palo
is loaded from your f0 partition and then looks for the kernel image in your
data (/boot) partition).

Greetings,
Helge



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Subject: Re: [parisc-linux] what is palo/lifimage for ?
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Hi Joerg and all,

For you who want to see Linux on your favorite box, you can use the 
official HOWTO,
http://linuxdoc.org/HOWTO/PA-RISC-Linux-Boot-HOWTO/index.html

But, you also have some info here: http://mkhppa1.esiee.fr/palo.html

And, the latest version of the HOWTO is here:
http://mkhppa1.esiee.fr/parisc-linux-boot/parisc-linux-boot/index.html

Please do not hesitate to tell me if there is some section you like 
tosee in this paper. It could help some futur newbies :-)

Thomas.
ESIEE Team





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From: Andy Walker <squawker@start.no>
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Subject: [parisc-linux] Status report - B132L and 725/100
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Xref: news.gmane.org gmane.linux.ports.parisc:13383

Hi folks,

This is stock 0.9.3.

Over the weekend I was using the B132L with an original HP keyboard.
No sign of the LASI PS/2 keyboard timeouts that were bugging me on
thursday night. Whether that's because the HP keyboard differs from
the generic PS/2 keyboard I was using before, or just because I wasn't
hitting the cdrom hard for data at the same time I don't know. I'll
report back if I see the problem again.

Fired up the 725/100 I was talking about last week. Works like a charm.
Initially I used the builtin framebuffer (HPA208LC1280 - 1280-1024-8).
Then I stuck in a Coral GSC (HPA4071B_LZ) in GSC slot 2.

Both work fine, but the same weird thing with the frame buffer ordering
occurred with the 725/100 as it did with the B132L last week. With the
console set in the PDC to the built-in fb, the kernel starts to boot
on that device, then finds the Coral first and continues to boot
on that, calling it fb0. Setting the console in PDC to the Coral makes
everything work properly - the system boots all the way on the Coral.

I had to pull the Bluefish F/W-Diff card (or at least disconnect the
disk) but it may have been termination problems causing the timeouts/
resets. Something else to test :-)

Here's the dmesg from the 725/100. The unknown scancode, 7f, is
less-than/greater-than on a Norwegian PS/2 keyboard. I imagine that
can be fixed :-)

-Andy

Linux version 2.4.9-32 (root@paer) (gcc version 3.0.2 (Debian)) #1 Fri Nov 30 
19:36:30 MST 2001
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model	000060d0 00000481 00000000 00000000 77ec54a0 00000000 00000004 00000072 
00000072
vers	0000000b
CPUID	vers 0 rev 0
model	9000/725
Total Memory: 320 Mb
pagetable_init
On node 0 totalpages: 81920
zone(0): 81920 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda2 HOME=/ console=tty0 sti=0 sti_font=VGA8x16 
TERM=linux
Console: colour dummy device 160x64
Calibrating delay loop... 99.73 BogoMIPS
Memory: 319540k available
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf4000000 [0], versions 0x4, 0x0, 0x77
2. Electra GSC Builtin Graphics (10) at 0xf8000000 [1], versions 0x14, 0x0, 0x85
3. Electra Core BA (11) at 0xf0100000 [2], versions 0x2a, 0x0, 0x81
4. Electra Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x2a, 0x0, 0x82
5. Electra Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x2a, 0x0, 0x8a
6. Electra Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x2a, 0x0, 0x8c
7. Electra Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x2a, 0x0, 0x74
8. Electra Audio (10) at 0xf0104000 [2/0/8], versions 0x2a, 0x0, 0x7b
9. Electra Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x2a, 0x0, 0x83
10. Electra Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x2a, 0x0, 0x84
11. Electra Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x2a, 0x0, 0x84
12. Electra Wax EISA BA (11) at 0xfc000000 [4], versions 0x2a, 0x0, 0x90
13. Electra Wax BA (11) at 0xf0200000 [5], versions 0x14, 0x0, 0x8e
14. Electra Wax HIL (10) at 0xf0201000 [5/0/1], versions 0x14, 0x0, 0x73
15. Electra Wax RS-232 (10) at 0xf0202000 [5/0/2], versions 0x14, 0x0, 0x8c
16. Electra 100 (0) at 0xfffbe000 [8], versions 0x60d, 0x0, 0x4
17. Electra 100 (1) at 0xfffbf000 [9], versions 0x4d, 0x0, 0x9
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
Lasi version 0 at 0xf0100000 found.
LED display at f00e0000 registered
Wax at 0xf0200000 found.
Wax: HIL Keyboard-NMI registered.
Wax EISA Adapter found at 0xfc000000
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
STI byte mode ROM at f4000000, hpa=f4000000
STI byte mode ROM, id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071B_LZ
STI word mode ROM at f0024000, hpa=f8000000
STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1280
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio: 0xf4100000
fb1: stifb 1280x1024-8 frame buffer device, id: 2b4ded6d, mmio: 0xf8100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI 
enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0202800 (irq = 121) is a 16550A
PS/2 keyboard port at 0xf0108000 (irq 69) found, device attached.
PS/2 psaux port at 0xf0108100 (irq 69) found, device attached.
Found HIL at 0xf0201000, IRQ 126
HIL: no keyboard present.
Warning : device (10, 0x14, 0x0, 0x73) NOT claimed by HIL
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 0A 0C 6B IRQ 87.
82596.c $Revision: 1.26 $
SCSI subsystem driver Revision: 1.00
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2 
scsi0 : LASI SCSI 53c700
scsi0: (3:0) Synchronous at offset 8, period 200ns
  Vendor: HP        Model: HP35480A          Rev: 1109
  Type:   Sequential-Access                  ANSI SCSI revision: 02
scsi0: (6:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST31055N          Rev: 0532
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
scsi0: (6:0) Enabling Tag Command Queuing
SCSI device sda: 2069860 512-byte hdwr sectors (1060 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
Lasi Harmony Audio rev. 18 at 0xf0104000, using IRQ 82
sticonsole_init: searching for STI ROMs
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Adding Swap: 195384k swap-space (priority -1)
eth0: link ok.
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored
keyboard: unrecognized scancode (7f) - ignored



------------------------------------------------------------
F din egen @start.no-adresse gratis p http://www.start.no/



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Quoting Andy Walker <squawker@start.no>:

> I had to pull the Bluefish F/W-Diff card (or at least disconnect the
> disk) but it may have been termination problems causing the timeouts/
> resets. Something else to test :-)

Okay, checked termination. Tried a different disk. Booted HP-UX on
that disk. No luck with Linux.

Relevant part of the dmesg is:

...
18. Bluefish Add-on FW-SCSI (4) at 0xfff8c000 [11], versions 0x13, 0x0, 0x89
...
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3b-20010512

-Andy

------------------------------------------------------------
F din egen @start.no-adresse gratis p http://www.start.no/



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From: Maneesh Singhal <maneesh@india.hp.com>
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On Sun, 16 Dec 2001, Joel Soete wrote:

> Hello Maneesh,
> 
> >        selection .. Bus reset detected ..." etc. etc.
> 
> This sound like a problem I met a time ago: the scsi chain was opened
> (ie during test I forgot to reconnect the scsi terminator to my external
> drive).
> 
> If a scsi terminator is well connected may be could it be defective (or
> a one not corresponding to your scsi interface logicaly Single-Ended if
> your CD is connected to the narrow single-ended conector)?

Thanx Joel,

	Exactly this was the problem, my scsi cable was loose, and also
	didn't have the terminator.. Anyway, now I installed the system.

	One new question : I am unable to start my X , whenever I do 
	startx it says 

	"Fatal Server Error :
	no screen found "

	Can anybody tell me why it is happening so ??????

	Also my machine is not able to connect to any other machine...
	though I configured the network !!!


	Thanx again for all the helps !!


> 
> Good luck,
> 	Joel
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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Subject: Re: [parisc-linux] Status report - B132L and 725/100
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On Mon, Dec 17, 2001 at 12:47:23PM +0100, Andy Walker wrote:
> Both work fine, but the same weird thing with the frame buffer ordering
> occurred with the 725/100 as it did with the B132L last week. With the
> console set in the PDC to the built-in fb, the kernel starts to boot
> on that device, then finds the Coral first and continues to boot
> on that, calling it fb0. Setting the console in PDC to the Coral makes
> everything work properly - the system boots all the way on the Coral.

OK, we need to figure out how to order the fb devices properly.  Right
now, they're initialised in IO tree order.  On a gecko with a graphics
card in the expansion slot, the expansion grahics gets device 0 and the
inbuilt is device 1.  Clearly similar problems exist on other machines.

So could everyone who has two (or more!) graphics cards in their machine
send the two lines of dmesg which describe their graphics card in the
inventory / buswalk section, their machine type (B132, Gecko, etc)
and indicate whether or not it gets them in the right order currently.

Example (made up!):

4. Frobnitz Ultra Graphics (10) at 0xf8000000 [8/1], versions 0xa, 0x0, 0x77
13. Thunder II graphics GSA form (10) at 0xf4000000 [10/8], versions 0xa, 0x0, 0x77
J282, works

Thanks.

-- 
Revolutions do not require corporate support.



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Subject: [Fwd: Re: 735 and SCSI (was: Re: [parisc-linux] Firmware upgraded, STI console problem)]
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Forgot to CC the list. Sorry!


-- 
____               .:.                 ____
Bryan W. Headley - bheadley@interaccess.com

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>From - Mon Dec 17 09:32:07 2001
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Subject: Re: 735 and SCSI (was: Re: [parisc-linux] Firmware upgraded, STI console problem)
References: <1008253261.495.4.camel@beavis> <Pine.LNX.4.33.0112141351590.31282-100000@bob.ncssm.edu> <20011214225505.F27312@linuxcare.com>
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Richard Hirst wrote:

> On Fri, Dec 14, 2001 at 01:58:03PM -0500, Phil Anderson wrote:
> 
>>so has _anyone_ gotten a 735 working or anything? I have 7 of them that
>>are taking up space in my dorm room, and two 755's under the desk that
>>server the same purpose...
>>
> 
> I believe some people have had 735 working using narrow SE disks on
> the same i/f as the CD.
> 


My guess is, the thing to do is merge the FW stuff from MkLinux driver 
and see what still works. Slight problem with that driver is it knows 
what hardware you have by what machine it determines you have. FW, 
Big/Little endian configurations figured out on the spot. It'd be better 
to recognize those attributes by examining the controller.

Since my C110 has a fast/wide, and so does my 735, I'm in the bad spot 
of never really having either machine fully boot up. The CDROM drive I 
have doesn't "like" RW discs, so I'd love to see someone stamp out a 
Woody-ish master that I can read from.




-- 
____               .:.                 ____
Bryan W. Headley - bheadley@interaccess.com


--------------000505070603050006030708--




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Hey Maneesh,

Quoting Maneesh Singhal <maneesh@india.hp.com>:

> On Sun, 16 Dec 2001, Joel Soete wrote:
> 
> > Hello Maneesh,
> > 
> > >        selection .. Bus reset detected ..." etc. etc.
> > 
> > This sound like a problem I met a time ago: the scsi chain was opened
> > (ie during test I forgot to reconnect the scsi terminator to my
> external
> > drive).
> > 
> > If a scsi terminator is well connected may be could it be defective
> (or
> > a one not corresponding to your scsi interface logicaly Single-Ended
> if
> > your CD is connected to the narrow single-ended conector)?
> 
> Thanx Joel,
> 
> 	Exactly this was the problem, my scsi cable was loose, and also
> 	didn't have the terminator.. Anyway, now I installed the system.

Nice to read.

> 
> 	One new question : I am unable to start my X , whenever I do 
> 	startx it says 
> 
> 	"Fatal Server Error :
> 	no screen found "
> 
> 	Can anybody tell me why it is happening so ??????
> 
> 	Also my machine is not able to connect to any other machine...
> 	though I configured the network !!!
> 
I am not a specialist of X but I attach my XF86Config file (just a one
previously put on this list but a bit changed for new XF86 release).

Two things are important:

    a. be sure that your mouse pointer device (here /dev/psaux) is not a pointer
to /dev/gpmdata (in fact that should not happen with psaux but well with mouse)

    b. be sure that the Modes at line 395 match your screen setting (at the boot
console CO[nfiguration] MO[nitor] would display you the actual monitor set up)
Also afaik the rest of the line had to commented out or removed because
switching  does not work.

Joel
        

 

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From - Thu Nov 08 21:20:49 2018
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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] installation..... new problems..
Date: Mon, 17 Dec 2001 17:43:43 +0100 (CET)
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Cc: Joel Soete <joel.soete@freebel.net>,
	parisc-linux@lists.parisc-linux.org
To: Maneesh Singhal <maneesh@india.hp.com>
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Hey Maneesh,

Sorry for the lack of config file but I just learn to use a webmail client ??

Thanks for your understand,

Joel

Quoting Maneesh Singhal <maneesh@india.hp.com>:

> On Sun, 16 Dec 2001, Joel Soete wrote:
> 
> > Hello Maneesh,
> > 
> > >        selection .. Bus reset detected ..." etc. etc.
> > 
> > This sound like a problem I met a time ago: the scsi chain was opened
> > (ie during test I forgot to reconnect the scsi terminator to my
> external
> > drive).
> > 
> > If a scsi terminator is well connected may be could it be defective
> (or
> > a one not corresponding to your scsi interface logicaly Single-Ended
> if
> > your CD is connected to the narrow single-ended conector)?
> 
> Thanx Joel,
> 
> 	Exactly this was the problem, my scsi cable was loose, and also
> 	didn't have the terminator.. Anyway, now I installed the system.

Nice to read.

> 
> 	One new question : I am unable to start my X , whenever I do 
> 	startx it says 
> 
> 	"Fatal Server Error :
> 	no screen found "
> 
> 	Can anybody tell me why it is happening so ??????
> 
> 	Also my machine is not able to connect to any other machine...
> 	though I configured the network !!!
> 
I am not a specialist of X but I attach my XF86Config file (just a one
previously put on this list but a bit changed for new XF86 release).

Two things are important:

    a. be sure that your mouse pointer device (here /dev/psaux) is not a pointer
to /dev/gpmdata (in fact that should not happen with psaux but well with mouse)

    b. be sure that the Modes at line 395 match your screen setting (at the boot
console CO[nfiguration] MO[nitor] would display you the actual monitor set up)
Also afaik the rest of the line had to commented out or removed because
switching  does not work.

Joel
        

 

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From - Thu Nov 08 21:20:49 2018
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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] installation..... new problems..
Date: Mon, 17 Dec 2001 17:54:20 +0100 (CET)
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Cc: Joel Soete <joel.soete@freebel.net>,
	parisc-linux@lists.parisc-linux.org
To: Maneesh Singhal <maneesh@india.hp.com>
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Hey Maneesh,

Quoting Maneesh Singhal <maneesh@india.hp.com>:

> On Sun, 16 Dec 2001, Joel Soete wrote:
> 
> > Hello Maneesh,
> > 
> > >        selection .. Bus reset detected ..." etc. etc.
> > 
> > This sound like a problem I met a time ago: the scsi chain was opened
> > (ie during test I forgot to reconnect the scsi terminator to my
> external
> > drive).
> > 
> > If a scsi terminator is well connected may be could it be defective
> (or
> > a one not corresponding to your scsi interface logicaly Single-Ended
> if
> > your CD is connected to the narrow single-ended conector)?
> 
> Thanx Joel,
> 
> 	Exactly this was the problem, my scsi cable was loose, and also
> 	didn't have the terminator.. Anyway, now I installed the system.

Nice to read.

> 
> 	One new question : I am unable to start my X , whenever I do 
> 	startx it says 
> 
> 	"Fatal Server Error :
> 	no screen found "
> 
> 	Can anybody tell me why it is happening so ??????
> 
> 	Also my machine is not able to connect to any other machine...
> 	though I configured the network !!!
> 
I am not a specialist of X but I attach my XF86Config file (just a one
previously put on this list but a bit changed for new XF86 release).

Two things are important:

    a. be sure that your mouse pointer device (here /dev/psaux) is not a pointer
to /dev/gpmdata (in fact that should not happen with psaux but well with mouse)

    b. be sure that the Modes at line 395 match your screen setting (at the boot
console CO[nfiguration] MO[nitor] would display you the actual monitor set up)
Also afaik the rest of the line had to commented out or removed because
switching  does not work.

Joel
        

 

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---MOQ1008608060e08f1afdccc63cd0f3ba83b40e0f4412--



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From: "JOERGENSEN,RUNAR (HP-Norway,ex1)" <runar_joergensen@hp.com>
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Subject: [parisc-linux] Startup problem X
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Greetings

I'm having X startup problems with a C200 (Raven/U+)
and 20" Color monitor (1280x1024, A4331D). I'm using=20
the framebuffer driver ("fbdev"), but I never get passed the=20
"Shadow framebuffer" part. X crashes complaining
about: FBIOPUT_VSCREENINFO: invalid argument
AddScreen/ScreenInit failed for driver 0

I would have loved to share some logs, but this unit=20
is not on net...yet.=20

I've looked around and tried a couple of different=20
Xf86config files. Does anyone have a sample config=20
file to share with the above setup?=20

XFree86 version: 4.1.0.1
OS: Linux 2.4.9-pa79 parisc64 [ELF]=20

Regards,
Runar J=F8rgensen=20



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From: Grant Grundler <grundler@puffin.external.hp.com>
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Subject: Re: [parisc-linux] what is palo/lifimage for ?
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Joerg Hartmann wrote:
> The "Building the Kernel" webpage at
> http://www.parisc-linux.org/kernel/index.html says
> after "make palo" you have your new kernel in the file palo/lifimage.

This is wrong. Soory about that.
This page is really oriented towards building
kernels with a X-compiler and then booting them via network.

I'm fixing this page now. I'll set up a link to a "How-to Build
for Net Boot" (which has the old page) and leave that for someone
else to edit.


thanks,
grant



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I see from PALO docs that one of the design goals was to support LIF boot
from tape but I haven't been able to find any details there or in the list
archives.

I am interested in creating bootable backup media as I have done for many
years using IgniteUX. Has anyone tried doing anything like this? Does
anyone have any pointers?

Cheers
PeteM




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Me thinks the answer is in the list archives after all. :-(

Picking the right search terms has dug up what I need after all!

PeteM

On Mon, 17 Dec 2001, Peter Mottram wrote:

> I see from PALO docs that one of the design goals was to support LIF boot
> from tape but I haven't been able to find any details there or in the list
> archives.
>
> I am interested in creating bootable backup media as I have done for many
> years using IgniteUX. Has anyone tried doing anything like this? Does
> anyone have any pointers?
>
> Cheers
> PeteM
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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I thought I had found something useful but have been unable to create a
tape with a LIF image on it that actually boots.

Still need help after all.

TIA
PeteM

On Mon, 17 Dec 2001, Stan Sieler wrote:

> Hi,
>
> > Me thinks the answer is in the list archives after all. :-(
>
> and what was the answer?
>
> > Picking the right search terms has dug up what I need after all!
>
> I must be using the wrong terms, too! :)
>
> thanks,
>
>





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Subject: Re: [parisc-linux] installation..... new problems..
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Xref: news.gmane.org gmane.linux.ports.parisc:13396

Very sorry and disapointed by this webmail client (at least regarding atachement)
Here so this file as cut and past (it should certainly be re-formated but that
the best I can do right now):

===== XF86Config =====

# File generated by xf86config.

#
# Copyright (c) 1999 by The XFree86 Project, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
# THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
# OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
# 
# Except as contained in this notice, the name of the XFree86 Project shall
# not be used in advertising or otherwise to promote the sale, use or other
# dealings in this Software without prior written authorization from the
# XFree86 Project.
#

# **********************************************************************
# Refer to the XF86Config(4/5) man page for details about the format of 
# this file.
# **********************************************************************

# **********************************************************************
# Module section -- this  section  is used to specify
# which dynamically loadable modules to load.
# **********************************************************************
#
Section "Module"

# This loads the DBE extension module.

    Load        "dbe"  	# Double buffer extension

# This loads the miscellaneous extensions module, and disables
# initialisation of the XFree86-DGA extension within that module.
    SubSection  "extmod"
      Option    "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection

# This loads the Type1 and FreeType font modules
    Load        "type1"
    Load        "freetype"

# This loads the GLX module
#    Load       "glx"

EndSection

# **********************************************************************
# Files section.  This allows default font and rgb paths to be set
# **********************************************************************

Section "Files"

# The location of the RGB database.  Note, this is the name of the
# file minus the extension (like ".txt" or ".db").  There is normally
# no need to change the default.

    RgbPath	"/usr/X11R6/lib/X11/rgb"

# Multiple FontPath entries are allowed (which are concatenated together),
# as well as specifying multiple comma-separated entries in one FontPath
# command (or a combination of both methods)
# 
# If you don't have a floating point coprocessor and emacs, Mosaic or other
# programs take long to start up, try moving the Type1 and Speedo directory
# to the end of this list (or comment them out).
# 

#    FontPath   "/usr/X11R6/lib/X11/fonts/local/"
    FontPath   "/usr/X11R6/lib/X11/fonts/misc/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/Type1/"
    FontPath   "/usr/X11R6/lib/X11/fonts/Speedo/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/"

# The module search path.  The default path is shown here.

#    ModulePath "/usr/X11R6/lib/modules"

EndSection

# **********************************************************************
# Server flags section.
# **********************************************************************

Section "ServerFlags"

# Uncomment this to cause a core dump at the spot where a signal is 
# received.  This may leave the console in an unusable state, but may
# provide a better stack trace in the core dump to aid in debugging

#    Option "NoTrapSignals"

# Uncomment this to disable the <Crtl><Alt><BS> server abort sequence
# This allows clients to receive this key event.

#    Option "DontZap"

# Uncomment this to disable the <Crtl><Alt><KP_+>/<KP_-> mode switching
# sequences.  This allows clients to receive these key events.

#    Option "Dont Zoom"

# Uncomment this to disable tuning with the xvidtune client. With
# it the client can still run and fetch card and monitor attributes,
# but it will not be allowed to change them. If it tries it will
# receive a protocol error.

#    Option "DisableVidModeExtension"

# Uncomment this to enable the use of a non-local xvidtune client. 

#    Option "AllowNonLocalXvidtune"

# Uncomment this to disable dynamically modifying the input device
# (mouse and keyboard) settings. 

#    Option "DisableModInDev"

# Uncomment this to enable the use of a non-local client to
# change the keyboard or mouse settings (currently only xset).

#    Option "AllowNonLocalModInDev"

EndSection

# **********************************************************************
# Input devices
# **********************************************************************

# **********************************************************************
# Core keyboard's InputDevice section
# **********************************************************************

Section "InputDevice"

    Identifier	"Keyboard1"
    Driver	"Keyboard"
# For most OSs the protocol can be omitted (it defaults to "Standard").
# When using XQUEUE (only for SVR3 and SVR4, but not Solaris),
# uncomment the following line.

#    Option     "Protocol"      "Xqueue"

    Option "AutoRepeat" "500 30"

# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
#    Option	"Xleds"      "1 2 3"

#    Option "LeftAlt"     "Meta"
#    Option "RightAlt"    "ModeShift"

# To customise the XKB settings to suit your keyboard, modify the
# lines below (which are the defaults).  For example, for a non-U.S.
# keyboard, you will probably want to use:
#    Option "XkbModel"    "pc102"
# If you have a US Microsoft Natural keyboard, you can use:
#    Option "XkbModel"    "microsoft"
#
# Then to change the language, change the Layout setting.
# For example, a german layout can be obtained with:
#    Option "XkbLayout"   "de"
# or:
#    Option "XkbLayout"   "de"
#    Option "XkbVariant"  "nodeadkeys"
#
# If you'd like to switch the positions of your capslock and
# control keys, use:
#    Option "XkbOptions"  "ctrl:swapcaps"

# These are the default XKB settings for XFree86
#    Option "XkbRules"    "xfree86"
#    Option "XkbModel"    "pc101"
#    Option "XkbLayout"   "us"
#    Option "XkbVariant"  ""
#    Option "XkbOptions"  ""

#    Option "XkbDisable"

    Option "XkbRules"	"xfree86"
    Option "XkbModel"	"pc101"
    Option "XkbLayout"	"us"
#    Option "XkbVariant"	"nodeadkeys"

EndSection


# **********************************************************************
# Core Pointer's InputDevice section
# **********************************************************************

Section "InputDevice"

# Identifier and driver

    Identifier	"Mouse1"
    Driver	"mouse"
    Option "Protocol"    "PS/2"
#    Option "Device"      "/dev/mouse"
    Option "Device"      "/dev/psaux"

# When using XQUEUE, comment out the above two lines, and uncomment
# the following line.

#    Option "Protocol"	"Xqueue"

# Baudrate and SampleRate are only for some Logitech mice. In
# almost every case these lines should be omitted.

#    Option "BaudRate"	"9600"
#    Option "SampleRate"	"150"

# Emulate3Buttons is an option for 2-button Microsoft mice
# Emulate3Timeout is the timeout in milliseconds (default is 50ms)

#    Option "Emulate3Buttons"
#    Option "Emulate3Timeout"    "100"

# ChordMiddle is an option for some 3-button Logitech mice

#    Option "ChordMiddle"

EndSection


# **********************************************************************
# Other input device sections 
# this is optional and is required only if you
# are using extended input devices.  This is for example only.  Refer
# to the XF86Config man page for a description of the options.
# **********************************************************************
#
# Section "InputDevice" 
#    Identifier  "Mouse2"
#    Driver      "mouse"
#    Option      "Protocol"      "MouseMan"
#    Option      "Device"        "/dev/mouse2"
# EndSection
#
# Section "InputDevice"
#    Identifier "spaceball"
#    Driver     "magellan"
#    Option     "Device"        "/dev/cua0"
# EndSection
#
# Section "InputDevice"
#    Identifier "spaceball2"
#    Driver     "spaceorb"
#    Option     "Device"        "/dev/cua0"
# EndSection
#
# Section "InputDevice"
#    Identifier "touchscreen0"
#    Driver     "microtouch"
#    Option     "Device"        "/dev/ttyS0"
#    Option     "MinX"          "1412"
#    Option     "MaxX"          "15184"
#    Option     "MinY"          "15372"
#    Option     "MaxY"          "1230"
#    Option     "ScreenNumber"  "0"
#    Option     "ReportingMode" "Scaled"
#    Option     "ButtonNumber"  "1"
#    Option     "SendCoreEvents"
# EndSection
#
# Section "InputDevice"
#    Identifier "touchscreen1"
#    Driver     "elo2300"
#    Option     "Device"        "/dev/ttyS0"
#    Option     "MinX"          "231"
#    Option     "MaxX"          "3868"
#    Option     "MinY"          "3858"
#    Option     "MaxY"          "272"
#    Option     "ScreenNumber"  "0"
#    Option     "ReportingMode" "Scaled"
#    Option     "ButtonThreshold"       "17"
#    Option     "ButtonNumber"  "1"
#    Option     "SendCoreEvents"
# EndSection

# **********************************************************************
# Monitor section
# **********************************************************************

# Any number of monitor sections may be present

Section "Monitor"

    Identifier  "lcd"

# HorizSync is in kHz unless units are specified.
# HorizSync may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY.  REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

    HorizSync   31.5 - 48.5

#    HorizSync	30-64         # multisync
#    HorizSync	31.5, 35.2    # multiple fixed sync frequencies
#    HorizSync	15-25, 30-50  # multiple ranges of sync frequencies

# VertRefresh is in Hz unless units are specified.
# VertRefresh may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY.  REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

    VertRefresh 50-100

EndSection


# **********************************************************************
# Graphics device section
# **********************************************************************

# Any number of graphics device sections may be present

# Standard VGA Device:

Section "Device"
    Identifier	"Standard VGA"
    VendorName	"Unknown"
    BoardName	"Unknown"

# The chipset line is optional in most cases.  It can be used to override
# the driver's chipset detection, and should not normally be specified.

#    Chipset	"generic"

# The Driver line must be present.  When using run-time loadable driver
# modules, this line instructs the server to load the specified driver
# module.  Even when not using loadable driver modules, this line
# indicates which driver should interpret the information in this section.

    Driver     "fbdev"
# The BusID line is used to specify which of possibly multiple devices
# this section is intended for.  When this line isn't present, a device
# section can only match up with the primary video device.  For PCI
# devices a line like the following could be used.  This line should not
# normally be included unless there is more than one video device
# intalled.

#    BusID      "PCI:0:10:0"

#    VideoRam	256

#    Clocks	25.2 28.3

EndSection

# Device configured by xf86config:

Section "Device"
    Identifier  "fbdev"
    Driver      "fbdev"
    #VideoRam    8192
    # Insert Clocks lines here if appropriate
EndSection


# **********************************************************************
# Screen sections
# **********************************************************************

# Any number of screen sections may be present.  Each describes
# the configuration of a single screen.  A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.
Section "Screen"
    Identifier  "Screen 1"
    Device      "fbdev"
    Monitor     "lcd"
    DefaultDepth 8

    Subsection "Display"
        Depth       8
        Modes       "1280x1024" #"800x600" "640x480" "1024x768" 
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes       "640x480" "800x600" "1024x768" "1280x1024"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes       "800x600" # "1024x768"
        ViewPort    0 0
    EndSubsection
EndSection

# **********************************************************************
# ServerLayout sections.
# **********************************************************************

# Any number of ServerLayout sections may be present.  Each describes
# the way multiple screens are organised.  A specific ServerLayout
# section may be specified from the X server command line with the
# "-layout" option.  In the absence of this, the first section is used.
# When now ServerLayout section is present, the first Screen section
# is used alone.

Section "ServerLayout"

# The Identifier line must be present
    Identifier  "Simple Layout"

# Each Screen line specifies a Screen section name, and optionally
# the relative position of other screens.  The four names after
# primary screen name are the screens to the top, bottom, left and right
# of the primary screen.  In this example, screen 2 is located to the
# right of screen 1.

    Screen "Screen 1"

# Each InputDevice line specifies an InputDevice section name and
# optionally some options to specify the way the device is to be
# used.  Those options include "CorePointer", "CoreKeyboard" and
# "SendCoreEvents".

    InputDevice "Mouse1" "CorePointer"
    InputDevice "Keyboard1" "CoreKeyboard"

EndSection


===== XF86Config =====

Quoting Grant Grundler <grundler@puffin.external.hp.com>:

> joel.soete@freebel.net wrote:
> > I am not a specialist of X but I attach my XF86Config file (just a
> one
> > previously put on this list but a bit changed for new XF86 release).
> 
> [grundler@puffin grundler]$ mhn -list
>  msg part  type/subtype              size description                   
>      
>  117       multipart/mixed           2368
>      1     text/plain                1786
>      2     application/octet-stream     0
> 
> Joel,
> 
> It didn't attach very well...thanks for the help though.
> 
> grant
> 
> 

Once again sorry for inconvenience and thanks for info Grant,
        Joel




-------------------------------------------------
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From: Paul Bame <bame@riverrock.org>
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Subject: Re: [parisc-linux] LIF boot from tape?
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> I thought I had found something useful but have been unable to create a
> tape with a LIF image on it that actually boots.

If you have an already-running system, here's how to make a tape which
boots with the same root:

Copy your /etc/palo.conf to another file.  It should look something like
this:

--commandline=3/boot/vmlinux root=/dev/sda3
--recoverykernel=/boot/vmlinux
--init-partitioned=/dev/sda

Change --init-partitioned=/dev/sda to --init-tape=/tmp/lifimage

Change --commandline=3/boot/vmlinux ... to --commandline=0/vmlinux

Run palo, creating /tmp/lifimage

Copy /tmp/lifimage to tape with for example 'dd' (do not use 'tar' or 'cpio').



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> > I thought I had found something useful but have been unable to create a
> > tape with a LIF image on it that actually boots.
> 
> If you have an already-running system, here's how to make a tape which
> boots with the same root:
> 
> Copy your /etc/palo.conf to another file.  It should look something like
> this:
> 
> --commandline=3/boot/vmlinux root=/dev/sda3
> --recoverykernel=/boot/vmlinux
> --init-partitioned=/dev/sda
> 

In the new config file:

> Change --init-partitioned=/dev/sda to --init-tape=/tmp/lifimage
> 
> Change --commandline=3/boot/vmlinux ... to --commandline=0/vmlinux
> 
> Run palo, creating /tmp/lifimage

Specifically, 'palo -f your-new-config-file'

> 
> Copy /tmp/lifimage to tape with for example 'dd' (do not use 'tar' or 'cpio')
> .
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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I have had success and no problems installing the latest 0.9.3 on my B180L, 
so I had to be a glutton for punishment and tried on the C110.

Should not have done that. I have successfully installed the kernel and 
base for 0.9.3 and ftp'd vmlinux-32-2.4.16-pa16 kernel to the machine and 
re-booted to avoid the FWSCSI fs corruption. After that I started to 
install the X stuff. When I am doing an apt-get install xfonts-base (or 
xfonts-100dpi or xfonts-75dpi) I get a kernel panic:

ccio-dma.c:349: Assertion (*res_ptr & *mask_ptr) == * mask_ptr failed!
Kernel panic: (*res_ptr & *mask_ptr) == *mask_ptr
In interrupt handler - not syncing

I don't have the source for this and haven't yet looked at the code but I 
thought someone would like to know.

Regards, Herb




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From: Helge Deller <deller@gmx.de>
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On Monday 17 December 2001 15:35, Matthew Wilcox wrote:
> On Mon, Dec 17, 2001 at 12:47:23PM +0100, Andy Walker wrote:
> > Both work fine, but the same weird thing with the frame buffer ordering
> > occurred with the 725/100 as it did with the B132L last week. With the
> > console set in the PDC to the built-in fb, the kernel starts to boot
> > on that device, then finds the Coral first and continues to boot
> > on that, calling it fb0. Setting the console in PDC to the Coral makes
> > everything work properly - the system boots all the way on the Coral.
>
> OK, we need to figure out how to order the fb devices properly.  Right
> now, they're initialised in IO tree order.  On a gecko with a graphics
> card in the expansion slot, the expansion grahics gets device 0 and the
> inbuilt is device 1.  Clearly similar problems exist on other machines.

Hi Matthew, List,

I think a better solution would be to sort the found graphic devices by the hpa.
Acording to the sti documentation the only allowed hpa's (at least for GSC 
and SGCsystems) are 0xf8000000, 0xf4000000, 0xfa000000 and 0xf6000000.
0xf8000000 is always the build-in graphic device (e.g. Artist) and should be by default fb0,
0xf4000000 is described in the 712 memory map as  second Artist (second gfx card)
and should be fb1, and equally  0xfa000000 and 0xf6000000 should be used as
 fb2 and fb3 (or vice versa - I didn't checked those last two).
In case the user wants to override with the sti= parameter the kernel should now
select this entry (e.g. sti=1 should select the card at 0xf4000000).

I didn't looked at the implementation really hard yet, but I think this shouldn't be 
that hard to code.

Helge



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Hello Herb,

Thanks to Thomas, I finally found a recipe that I can duplicate this
error with on my C200+.  I get this exact error when reading from a tape
drive with bs=10k.  I will track this down and get it fixed.  

Thanks for the bug report, and thanks to Thomas for the recipie :)

- Ryan


On Mon, 2001-12-17 at 14:25, Herb Radford wrote:
> I have had success and no problems installing the latest 0.9.3 on my B180L, 
> so I had to be a glutton for punishment and tried on the C110.
> 
> Should not have done that. I have successfully installed the kernel and 
> base for 0.9.3 and ftp'd vmlinux-32-2.4.16-pa16 kernel to the machine and 
> re-booted to avoid the FWSCSI fs corruption. After that I started to 
> install the X stuff. When I am doing an apt-get install xfonts-base (or 
> xfonts-100dpi or xfonts-75dpi) I get a kernel panic:
> 
> ccio-dma.c:349: Assertion (*res_ptr & *mask_ptr) == * mask_ptr failed!
> Kernel panic: (*res_ptr & *mask_ptr) == *mask_ptr
> In interrupt handler - not syncing
> 
> I don't have the source for this and haven't yet looked at the code but I 
> thought someone would like to know.
> 
> Regards, Herb
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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On Mon, Dec 17, 2001 at 11:21:01PM +0100, Helge Deller wrote:
> I think a better solution would be to sort the found graphic devices by the hpa.
[...]
> In case the user wants to override with the sti= parameter the kernel should now
> select this entry (e.g. sti=1 should select the card at 0xf4000000).

the big problem is, that stifb completly ignores sti= from the commandline
and video=map doesn't seem to work (I need to reconfigure a machine to test
that myself, which I hadn't time yet). The best thing would be to use
the console path from pdc, no idea how hard that is.

It's probably not a big deal to use the default sti (sti=) for stifb, but
I'd prefer either a video="???" solution or the pdc console path. If we 
decide on a solution, I'm going to implement it (if nobody else wants
to do it :-)).

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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So, finally picked up a C180. However, it has the DVI video connector. It
also has free slots - is it possible to use a PCI or EISA video card in
it, or should I track down the video adapter?




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Quoting Thomas Bogendoerfer <tsbogend@alpha.franken.de>:

> On Mon, Dec 17, 2001 at 11:21:01PM +0100, Helge Deller wrote:
> > I think a better solution would be to sort the found graphic devices
> by the hpa.
> [...]
> > In case the user wants to override with the sti= parameter the kernel
> should now
> > select this entry (e.g. sti=1 should select the card at 0xf4000000).
> 
> the big problem is, that stifb completly ignores sti= from the
> commandline
> and video=map doesn't seem to work (I need to reconfigure a machine to
> test
> that myself, which I hadn't time yet). The best thing would be to use
> the console path from pdc, no idea how hard that is.

I agree with Thomas here. The PDC console path should always be mapped to
fb0 if possible. How we order the other frambuffers is of less importance,
but the average user shouldn't need to play around with kernel parameters
to make the machine boot sensibly.

> It's probably not a big deal to use the default sti (sti=) for stifb,
> but I'd prefer either a video="???" solution or the pdc console path. If we
> decide on a solution, I'm going to implement it (if nobody else wants
> to do it :-)).
> 
> Thomas.

I'll certainly help with any testing I can - can't promise too many programming
hours right now though, unfortunately :(

-Andy

------------------------------------------------------------
F din egen @start.no-adresse gratis p http://www.start.no/



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From: Maneesh Singhal <maneesh@india.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] installation..... new problems..
Date: Tue, 18 Dec 2001 12:43:59 +0530 (IST)
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Cc: Grant Grundler <grundler@puffin.external.hp.com>,
	parisc-linux@lists.parisc-linux.org, rinux@iternet.it
To: joel.soete@freebel.net
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Xref: news.gmane.org gmane.linux.ports.parisc:13405

Thanx again Joel,

		You have been very helpful to me .... now everything is working 
		fine on my machine... Am really greatful to you ...

	Thanx !!
Maneesh

On Mon, 17 Dec 2001 joel.soete@freebel.net wrote:

> Very sorry and disapointed by this webmail client (at least regarding atachement)
> Here so this file as cut and past (it should certainly be re-formated but that
> the best I can do right now):
> 
> ===== XF86Config =====
> 
> # File generated by xf86config.
> 
> #
> # Copyright (c) 1999 by The XFree86 Project, Inc.
> #
> # Permission is hereby granted, free of charge, to any person obtaining a
> # copy of this software and associated documentation files (the "Software"),
> # to deal in the Software without restriction, including without limitation
> # the rights to use, copy, modify, merge, publish, distribute, sublicense,
> # and/or sell copies of the Software, and to permit persons to whom the
> # Software is furnished to do so, subject to the following conditions:
> # 
> # The above copyright notice and this permission notice shall be included in
> # all copies or substantial portions of the Software.
> # 
> # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
> # THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
> # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
> # OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
> # SOFTWARE.
> # 
> # Except as contained in this notice, the name of the XFree86 Project shall
> # not be used in advertising or otherwise to promote the sale, use or other
> # dealings in this Software without prior written authorization from the
> # XFree86 Project.
> #
> 
> # **********************************************************************
> # Refer to the XF86Config(4/5) man page for details about the format of 
> # this file.
> # **********************************************************************
> 
> # **********************************************************************
> # Module section -- this  section  is used to specify
> # which dynamically loadable modules to load.
> # **********************************************************************
> #
> Section "Module"
> 
> # This loads the DBE extension module.
> 
>     Load        "dbe"  	# Double buffer extension
> 
> # This loads the miscellaneous extensions module, and disables
> # initialisation of the XFree86-DGA extension within that module.
>     SubSection  "extmod"
>       Option    "omit xfree86-dga"   # don't initialise the DGA extension
>     EndSubSection
> 
> # This loads the Type1 and FreeType font modules
>     Load        "type1"
>     Load        "freetype"
> 
> # This loads the GLX module
> #    Load       "glx"
> 
> EndSection
> 
> # **********************************************************************
> # Files section.  This allows default font and rgb paths to be set
> # **********************************************************************
> 
> Section "Files"
> 
> # The location of the RGB database.  Note, this is the name of the
> # file minus the extension (like ".txt" or ".db").  There is normally
> # no need to change the default.
> 
>     RgbPath	"/usr/X11R6/lib/X11/rgb"
> 
> # Multiple FontPath entries are allowed (which are concatenated together),
> # as well as specifying multiple comma-separated entries in one FontPath
> # command (or a combination of both methods)
> # 
> # If you don't have a floating point coprocessor and emacs, Mosaic or other
> # programs take long to start up, try moving the Type1 and Speedo directory
> # to the end of this list (or comment them out).
> # 
> 
> #    FontPath   "/usr/X11R6/lib/X11/fonts/local/"
>     FontPath   "/usr/X11R6/lib/X11/fonts/misc/"
>     FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
>     FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
>     FontPath   "/usr/X11R6/lib/X11/fonts/Type1/"
>     FontPath   "/usr/X11R6/lib/X11/fonts/Speedo/"
>     FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/"
>     FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/"
> 
> # The module search path.  The default path is shown here.
> 
> #    ModulePath "/usr/X11R6/lib/modules"
> 
> EndSection
> 
> # **********************************************************************
> # Server flags section.
> # **********************************************************************
> 
> Section "ServerFlags"
> 
> # Uncomment this to cause a core dump at the spot where a signal is 
> # received.  This may leave the console in an unusable state, but may
> # provide a better stack trace in the core dump to aid in debugging
> 
> #    Option "NoTrapSignals"
> 
> # Uncomment this to disable the <Crtl><Alt><BS> server abort sequence
> # This allows clients to receive this key event.
> 
> #    Option "DontZap"
> 
> # Uncomment this to disable the <Crtl><Alt><KP_+>/<KP_-> mode switching
> # sequences.  This allows clients to receive these key events.
> 
> #    Option "Dont Zoom"
> 
> # Uncomment this to disable tuning with the xvidtune client. With
> # it the client can still run and fetch card and monitor attributes,
> # but it will not be allowed to change them. If it tries it will
> # receive a protocol error.
> 
> #    Option "DisableVidModeExtension"
> 
> # Uncomment this to enable the use of a non-local xvidtune client. 
> 
> #    Option "AllowNonLocalXvidtune"
> 
> # Uncomment this to disable dynamically modifying the input device
> # (mouse and keyboard) settings. 
> 
> #    Option "DisableModInDev"
> 
> # Uncomment this to enable the use of a non-local client to
> # change the keyboard or mouse settings (currently only xset).
> 
> #    Option "AllowNonLocalModInDev"
> 
> EndSection
> 
> # **********************************************************************
> # Input devices
> # **********************************************************************
> 
> # **********************************************************************
> # Core keyboard's InputDevice section
> # **********************************************************************
> 
> Section "InputDevice"
> 
>     Identifier	"Keyboard1"
>     Driver	"Keyboard"
> # For most OSs the protocol can be omitted (it defaults to "Standard").
> # When using XQUEUE (only for SVR3 and SVR4, but not Solaris),
> # uncomment the following line.
> 
> #    Option     "Protocol"      "Xqueue"
> 
>     Option "AutoRepeat" "500 30"
> 
> # Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
> #    Option	"Xleds"      "1 2 3"
> 
> #    Option "LeftAlt"     "Meta"
> #    Option "RightAlt"    "ModeShift"
> 
> # To customise the XKB settings to suit your keyboard, modify the
> # lines below (which are the defaults).  For example, for a non-U.S.
> # keyboard, you will probably want to use:
> #    Option "XkbModel"    "pc102"
> # If you have a US Microsoft Natural keyboard, you can use:
> #    Option "XkbModel"    "microsoft"
> #
> # Then to change the language, change the Layout setting.
> # For example, a german layout can be obtained with:
> #    Option "XkbLayout"   "de"
> # or:
> #    Option "XkbLayout"   "de"
> #    Option "XkbVariant"  "nodeadkeys"
> #
> # If you'd like to switch the positions of your capslock and
> # control keys, use:
> #    Option "XkbOptions"  "ctrl:swapcaps"
> 
> # These are the default XKB settings for XFree86
> #    Option "XkbRules"    "xfree86"
> #    Option "XkbModel"    "pc101"
> #    Option "XkbLayout"   "us"
> #    Option "XkbVariant"  ""
> #    Option "XkbOptions"  ""
> 
> #    Option "XkbDisable"
> 
>     Option "XkbRules"	"xfree86"
>     Option "XkbModel"	"pc101"
>     Option "XkbLayout"	"us"
> #    Option "XkbVariant"	"nodeadkeys"
> 
> EndSection
> 
> 
> # **********************************************************************
> # Core Pointer's InputDevice section
> # **********************************************************************
> 
> Section "InputDevice"
> 
> # Identifier and driver
> 
>     Identifier	"Mouse1"
>     Driver	"mouse"
>     Option "Protocol"    "PS/2"
> #    Option "Device"      "/dev/mouse"
>     Option "Device"      "/dev/psaux"
> 
> # When using XQUEUE, comment out the above two lines, and uncomment
> # the following line.
> 
> #    Option "Protocol"	"Xqueue"
> 
> # Baudrate and SampleRate are only for some Logitech mice. In
> # almost every case these lines should be omitted.
> 
> #    Option "BaudRate"	"9600"
> #    Option "SampleRate"	"150"
> 
> # Emulate3Buttons is an option for 2-button Microsoft mice
> # Emulate3Timeout is the timeout in milliseconds (default is 50ms)
> 
> #    Option "Emulate3Buttons"
> #    Option "Emulate3Timeout"    "100"
> 
> # ChordMiddle is an option for some 3-button Logitech mice
> 
> #    Option "ChordMiddle"
> 
> EndSection
> 
> 
> # **********************************************************************
> # Other input device sections 
> # this is optional and is required only if you
> # are using extended input devices.  This is for example only.  Refer
> # to the XF86Config man page for a description of the options.
> # **********************************************************************
> #
> # Section "InputDevice" 
> #    Identifier  "Mouse2"
> #    Driver      "mouse"
> #    Option      "Protocol"      "MouseMan"
> #    Option      "Device"        "/dev/mouse2"
> # EndSection
> #
> # Section "InputDevice"
> #    Identifier "spaceball"
> #    Driver     "magellan"
> #    Option     "Device"        "/dev/cua0"
> # EndSection
> #
> # Section "InputDevice"
> #    Identifier "spaceball2"
> #    Driver     "spaceorb"
> #    Option     "Device"        "/dev/cua0"
> # EndSection
> #
> # Section "InputDevice"
> #    Identifier "touchscreen0"
> #    Driver     "microtouch"
> #    Option     "Device"        "/dev/ttyS0"
> #    Option     "MinX"          "1412"
> #    Option     "MaxX"          "15184"
> #    Option     "MinY"          "15372"
> #    Option     "MaxY"          "1230"
> #    Option     "ScreenNumber"  "0"
> #    Option     "ReportingMode" "Scaled"
> #    Option     "ButtonNumber"  "1"
> #    Option     "SendCoreEvents"
> # EndSection
> #
> # Section "InputDevice"
> #    Identifier "touchscreen1"
> #    Driver     "elo2300"
> #    Option     "Device"        "/dev/ttyS0"
> #    Option     "MinX"          "231"
> #    Option     "MaxX"          "3868"
> #    Option     "MinY"          "3858"
> #    Option     "MaxY"          "272"
> #    Option     "ScreenNumber"  "0"
> #    Option     "ReportingMode" "Scaled"
> #    Option     "ButtonThreshold"       "17"
> #    Option     "ButtonNumber"  "1"
> #    Option     "SendCoreEvents"
> # EndSection
> 
> # **********************************************************************
> # Monitor section
> # **********************************************************************
> 
> # Any number of monitor sections may be present
> 
> Section "Monitor"
> 
>     Identifier  "lcd"
> 
> # HorizSync is in kHz unless units are specified.
> # HorizSync may be a comma separated list of discrete values, or a
> # comma separated list of ranges of values.
> # NOTE: THE VALUES HERE ARE EXAMPLES ONLY.  REFER TO YOUR MONITOR'S
> # USER MANUAL FOR THE CORRECT NUMBERS.
> 
>     HorizSync   31.5 - 48.5
> 
> #    HorizSync	30-64         # multisync
> #    HorizSync	31.5, 35.2    # multiple fixed sync frequencies
> #    HorizSync	15-25, 30-50  # multiple ranges of sync frequencies
> 
> # VertRefresh is in Hz unless units are specified.
> # VertRefresh may be a comma separated list of discrete values, or a
> # comma separated list of ranges of values.
> # NOTE: THE VALUES HERE ARE EXAMPLES ONLY.  REFER TO YOUR MONITOR'S
> # USER MANUAL FOR THE CORRECT NUMBERS.
> 
>     VertRefresh 50-100
> 
> EndSection
> 
> 
> # **********************************************************************
> # Graphics device section
> # **********************************************************************
> 
> # Any number of graphics device sections may be present
> 
> # Standard VGA Device:
> 
> Section "Device"
>     Identifier	"Standard VGA"
>     VendorName	"Unknown"
>     BoardName	"Unknown"
> 
> # The chipset line is optional in most cases.  It can be used to override
> # the driver's chipset detection, and should not normally be specified.
> 
> #    Chipset	"generic"
> 
> # The Driver line must be present.  When using run-time loadable driver
> # modules, this line instructs the server to load the specified driver
> # module.  Even when not using loadable driver modules, this line
> # indicates which driver should interpret the information in this section.
> 
>     Driver     "fbdev"
> # The BusID line is used to specify which of possibly multiple devices
> # this section is intended for.  When this line isn't present, a device
> # section can only match up with the primary video device.  For PCI
> # devices a line like the following could be used.  This line should not
> # normally be included unless there is more than one video device
> # intalled.
> 
> #    BusID      "PCI:0:10:0"
> 
> #    VideoRam	256
> 
> #    Clocks	25.2 28.3
> 
> EndSection
> 
> # Device configured by xf86config:
> 
> Section "Device"
>     Identifier  "fbdev"
>     Driver      "fbdev"
>     #VideoRam    8192
>     # Insert Clocks lines here if appropriate
> EndSection
> 
> 
> # **********************************************************************
> # Screen sections
> # **********************************************************************
> 
> # Any number of screen sections may be present.  Each describes
> # the configuration of a single screen.  A single specific screen section
> # may be specified from the X server command line with the "-screen"
> # option.
> Section "Screen"
>     Identifier  "Screen 1"
>     Device      "fbdev"
>     Monitor     "lcd"
>     DefaultDepth 8
> 
>     Subsection "Display"
>         Depth       8
>         Modes       "1280x1024" #"800x600" "640x480" "1024x768" 
>         ViewPort    0 0
>     EndSubsection
>     Subsection "Display"
>         Depth       16
>         Modes       "640x480" "800x600" "1024x768" "1280x1024"
>         ViewPort    0 0
>     EndSubsection
>     Subsection "Display"
>         Depth       24
>         Modes       "800x600" # "1024x768"
>         ViewPort    0 0
>     EndSubsection
> EndSection
> 
> # **********************************************************************
> # ServerLayout sections.
> # **********************************************************************
> 
> # Any number of ServerLayout sections may be present.  Each describes
> # the way multiple screens are organised.  A specific ServerLayout
> # section may be specified from the X server command line with the
> # "-layout" option.  In the absence of this, the first section is used.
> # When now ServerLayout section is present, the first Screen section
> # is used alone.
> 
> Section "ServerLayout"
> 
> # The Identifier line must be present
>     Identifier  "Simple Layout"
> 
> # Each Screen line specifies a Screen section name, and optionally
> # the relative position of other screens.  The four names after
> # primary screen name are the screens to the top, bottom, left and right
> # of the primary screen.  In this example, screen 2 is located to the
> # right of screen 1.
> 
>     Screen "Screen 1"
> 
> # Each InputDevice line specifies an InputDevice section name and
> # optionally some options to specify the way the device is to be
> # used.  Those options include "CorePointer", "CoreKeyboard" and
> # "SendCoreEvents".
> 
>     InputDevice "Mouse1" "CorePointer"
>     InputDevice "Keyboard1" "CoreKeyboard"
> 
> EndSection
> 
> 
> ===== XF86Config =====
> 
> Quoting Grant Grundler <grundler@puffin.external.hp.com>:
> 
> > joel.soete@freebel.net wrote:
> > > I am not a specialist of X but I attach my XF86Config file (just a
> > one
> > > previously put on this list but a bit changed for new XF86 release).
> > 
> > [grundler@puffin grundler]$ mhn -list
> >  msg part  type/subtype              size description                   
> >      
> >  117       multipart/mixed           2368
> >      1     text/plain                1786
> >      2     application/octet-stream     0
> > 
> > Joel,
> > 
> > It didn't attach very well...thanks for the help though.
> > 
> > grant
> > 
> > 
> 
> Once again sorry for inconvenience and thanks for info Grant,
>         Joel
> 
> 
> 
> 
> -------------------------------------------------
> This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)
> 





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From: robert stanford <rob@rotapile.com>
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Subject: [parisc-linux] Newbie to risc
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Xref: news.gmane.org gmane.linux.ports.parisc:13406

Hi everybody,
        Just got a HP K class 9000 series  with dual 240Mhz PA-RISC 8200
processors,32 serial ports, 24 scsi drives, 6 ups's, dat drive  and fast
wide diff scsi tape drive  in a 2 m case. Electrician comes over
tomorrow to hook it up for me. Im totaly new to this architecture.

Whats the current state of linux on parisc, is it stable enough to
deploy as a web/mail server? 

Regards
Robert Stanford




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From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
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On Tue, 2001-12-18 21:28:42 +1000, robert stanford <rob@rotapile.com>
wrote in message <1008674922.25986.4.camel@rotapile>:
> Hi everybody,
>         Just got a HP K class 9000 series  with dual 240Mhz PA-RISC 8200
> processors,32 serial ports, 24 scsi drives, 6 ups's, dat drive  and fast
> wide diff scsi tape drive  in a 2 m case. Electrician comes over

*plonk*

SCNR, JBG

-- 
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From: Jochen Friedrich <jochen@scram.de>
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Hi there,

is it necessary to perform something similar to eisa_permute for ISA
memory space? At least on IBM Token Ring cards the driver fails to get
correct data if (memory & 0x300) == 0:

eisa: irq IAR 03 8259-1 irr 00 8259-2 irr 00
eisa: irq 8259-1 isr 00 imr 73 8259-2 isr 00 imr ff
tr0: Int from tok_driver, dev : 102804c0 irq3 regs=102e45c0
tr0: ARB resp: cmd=81
tr0: rbuffer: 7876.
tr0: offsetof data: 08 lan_hdr_len: 10
tr0: llc: FC0D788E rec_buf_addr: 7876 dev->mem_start: D0000
tr0: dsap: FF, ssap: FF, llc: FF, protid: FFFFFF, ethertype: FFFF

this is garbage.

eisa: irq IAR 03 8259-1 irr 00 8259-2 irr 00
eisa: irq 8259-1 isr 00 imr 73 8259-2 isr 00 imr ff
tr0: Int from tok_driver, dev : 102804c0 irq3 regs=102e45c0
tr0: ARB resp: cmd=81
tr0: rbuffer: DFE.
tr0: offsetof data: 08 lan_hdr_len: 10
tr0: llc: FC0D0E16 rec_buf_addr: 0DFE dev->mem_start: D0000
tr0: dsap: AA, ssap: AA, llc: 03, protid: 000000, ethertype: 0800

this is correct.

At the beginning it looked like memory access fails as soon as the buffer
is > 0x400, but the same happens if i reduce the window to 16K and use
memory paging on the adapter. The adapter itself works OK (verified on an
Intel PC).

Cheers,
Jochen




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Hi,

	Where can I find netscape browser for PA-RISC Linux 0.9.3 .

Maneesh






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On Tue, 2001-12-18 at 04:28, robert stanford wrote:
> Hi everybody,
>         Just got a HP K class 9000 series  with dual 240Mhz PA-RISC 8200
> processors,32 serial ports, 24 scsi drives, 6 ups's, dat drive  and fast
> wide diff scsi tape drive  in a 2 m case. Electrician comes over
> tomorrow to hook it up for me. Im totaly new to this architecture.
> 
> Whats the current state of linux on parisc, is it stable enough to
> deploy as a web/mail server? 

Nice Box :)

>From your description I am guessing you have a K580.
	http://hwdb.parisc-linux.org/view.php3?type=machine&name=K580

I have not tested a K580, but I have been working on a K460 ... here is
a low-down of what works right now on the K-Class systems.

dual processors:
	supported.

32 serial ports:
	Not supported yet if attached to the Eole CAP/MUX.
	Otherwise describe the hardware layout.

24 scsi drives:
	Supported if on the HSC bus,
	Not supported if the drives are on the HP-PB bus.

6 UPS:
	No idea, I've never tested.


dat drive and fast wide diff scsi tape drive:
	Supported if on the HSC bus but not tested.  CCIO appears to 		have a
tape related bug that I am tracking down right 
		now.
	Not supported if on the HP-PB bus.


One of my pet projects is to get the HP-PB bus cards supported, but this
will take time because the bus is priopriatary, documentation is scarce,
and not many people are really interested in it.


As for the parsic-linux stability .... I'll let others judge that :)

Hope this helps,

- Ryan

P.S. to get the console on the K-Class system, you will need to enable
the CONFIG_PDC_CONSOLE and follow the directions in the help.  The 0.9.3
iso will not install cleanly on the K-Class because of this.


> Regards
> Robert Stanford
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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Maneesh

Try using:

	apt-cache search "web browser"

to see what is currently available in the Debian archive. There is
currently no Netscape (possibly never will be) and only part of mozilla.
It looks like your best bet for now is konqueror. One of these days I
expect we will have Galeon and Moz available.

R.
PeteM

On Tue, 18 Dec 2001, Maneesh Singhal wrote:

> Hi,
>
> 	Where can I find netscape browser for PA-RISC Linux 0.9.3 .
>
> Maneesh
>
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>





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On Mon, Dec 17, 2001 at 03:27:11PM -0900, Tom wrote:
> So, finally picked up a C180. However, it has the DVI video connector. It
> also has free slots - is it possible to use a PCI or EISA video card in
> it, or should I track down the video adapter?

it tends to be tricky getting pci graphics cards of the right voltage --
unless they're HP manufactured ones, in which case they're expensive.
Nobody's written support for EISA DMA yet.  Easiest thing is to get hold
of the adapter.

-- 
Revolutions do not require corporate support.



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On Tue, 18 Dec 2001, Peter Mottram wrote:

> Maneesh
> 
> Try using:
> 
> 	apt-cache search "web browser"
> 
> to see what is currently available in the Debian archive. There is
> currently no Netscape (possibly never will be) and only part of mozilla.
> It looks like your best bet for now is konqueror. One of these days I
> expect we will have Galeon and Moz available.
> 

Oh, I tried konqueror, but :-( it doesn't run if I run it from anything other than KDE..
and KDE crashes for me many times , so that also  doesn't work properly..


think that best bet is rather lynx :-).

Thanx Anyway,

Regards.
Maneesh






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From: Markus Grabert <xam@student.cs.ucc.ie>
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Subject: [parisc-linux] HP 9000/782/C240 up and running 0.9.3 (serial)
Date: Tue, 18 Dec 2001 15:50:24 +0000 (GMT)
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Hi all,
yesterday I successfully installed Debian 0.9.3 (full cd install)
on my C240! Since I don't have a good monitor that
even supports the 1024x768/75Hz of the HP (but just 72Hz),
I can't use STI (and stifb) yet.
The installation was nearly as easy as the first time I tried Linux/HPPA
(when you just had to extract the nfsroot-tarball on the harddisk ;)
I'll try the 0.9.3 on my HP9000/730 next week when I return to Germany
for christmas.

OT: I had some problems at the very beginning since
minicom on my SPARCstation LX (Suse 7.1) is broken
(serial port is working fine; I'll reinstall Linux on the
 Sun in a couple of days anyway ...)

Slightly OT and newbie question: I don't have any clue how to use debian.
I always created my own linux distributions (at least on Intel).
Since I don't have a internet connection here in Ireland at home (but a
permanent at work), I can't update the system very easily using apt-get
update/upgrade.
So where can I get the latest (post 0.9.3) debian updates (.debs) ?
Do you know a way to set up an proxy server so that i simply mirror
the debian pool system (for personal use) ?

Well, the C240 is just too heavy to bring it to the office (I don't
have a car). Moreover our sysadmins wouldn't be too happy to see a
new workstation on the net (without their permission).

Anyway, here is the dmesg (and more):



xam@beast:~$ uname -a
Linux beast 2.4.9-32 #1 Fri Nov 30 19:36:30 MST 2001 parisc unknown
xam@beast:~$ dmesg
Linux version 2.4.9-32 (root@paer) (gcc version 3.0.2 (Debian)) #1 Fri Nov 30 19
:36:30 MST 2001
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model   00005990 00000481 00000000 00000002 77f75630 100000f0 00000008 000000b2
000000b2
vers    00000501
cpuid   000001d7
CPUID   vers 14 rev 23
model   9000/782/C240+
Total Memory: 512 Mb
pagetable_init
On node 0 totalpages: 131072
zone(0): 131072 pages.
zone(1): 0 pages.
zone(2): 0 pages.
LED display at f0190001 registered
Kernel command line: root=/dev/sda4 HOME=/ console=ttyS0 TERM=vt102
Console: colour dummy device 160x64
Calibrating delay loop... 470.22 BogoMIPS
Memory: 512860k available
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
2. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions 0x680, 0x3, 0xa
3. Raven U/L2 Dino RS-232 (10) at 0xf2003000 [8/0/63], versions 0x6, 0x0, 0x8c
4. Raven+ w SE FWSCSI Core BA (11) at 0xffd00000 [8/16], versions 0x56, 0x0, 0x8
1,  additional addresses: 0xffc00000
5. Raven+ w SE FWSCSI Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x56
, 0x0, 0x74,  additional addresses: 0xffd03000
6. Raven+ w SE FWSCSU Core Audio (10) at 0xffd04000 [8/16/1], versions 0x56, 0x4
, 0x7b
7. Raven+ w SE FWSCSI Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x56, 0x
0, 0x8c
8. Raven+ w SE FWSCSI Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x56, 0x0,
 0x82
9. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x56,
 0x0, 0x84
10. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x56
, 0x0, 0x84
11. U2-IOA BC GSC+ Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1, 0xc
12. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb
13. Cujo PCI Bridge (13) at 0xf1000000 [10/0], versions 0x682, 0x1, 0xa,  additi
onal addresses: 0xf6000000
14. U2-IOA BC GSC+ Port (7) at 0xf103f000 [10/63], versions 0x501, 0x1, 0xc
15. Raven U 240 (9000/780/C240) (0) at 0xfffa0000 [32], versions 0x599, 0x0, 0x4
16. Raven U 240 (1) at 0xfffb1000 [49], versions 0x6f, 0x0, 0x9
CPU(s): 1 x PA8200 (PCX-U+) at 236.000000 MHz
ccio found U2 at 0xfff88000
io_io_low: 0xf2000000
17. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions 0x680, 0x3, 0xa
18. Raven U/L2 Dino RS-232 (10) at 0xf2003000 [8/0/63], versions 0x6, 0x0, 0x8c
19. Raven U/L2 Dino PS/2 Port (10) at 0xf2001000 [8/1], versions 0x6, 0x0, 0x96
20. Raven+ w SE FWSCSI Core BA (11) at 0xffd00000 [8/16], versions 0x56, 0x0, 0x
81,  additional addresses: 0xffc00000
21. Raven+ w SE FWSCSI Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x5
6, 0x0, 0x74,  additional addresses: 0xffd03000
22. Raven+ w SE FWSCSU Core Audio (10) at 0xffd04000 [8/16/1], versions 0x56, 0x
4, 0x7b
23. Raven+ w SE FWSCSI Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x56, 0
x0, 0x8c
24. Raven+ w SE FWSCSI Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x56, 0x0
, 0x82
25. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x56
, 0x0, 0x84
26. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x56
, 0x0, 0x84
27. U2-IOA BC GSC+ Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1, 0xc
ccio found U2 at 0xfff8a000
io_io_low: 0xf1000000
28. Cujo PCI Bridge (13) at 0xf1000000 [10/0], versions 0x682, 0x1, 0xa,  additi
onal addresses: 0xf6000000
29. Dino RS-232 (10) at 0xf1003000 [10/3], versions 0x7, 0x0, 0x8c
30. U2-IOA BC GSC+ Port (7) at 0xf103f000 [10/63], versions 0x501, 0x1, 0xc
Lasi version 0 at 0xffd00000 found.
Dino version 3.1 found at 0xf2000000
Cujo version 2.0 found at 0xf1000000
Enabling Cujo 2.0 bug workaround
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
STI PCI ROM enabled at 0xf1e00000
PCI graphic ROM found at f1e00000 (2048 kB), fb @ f6000000 (32 MB)
PCI region 0: f6000000 with 32768 kB
PCI region 1: 00000000 with 0 kB
PCI region 2: 00000000 with 0 kB
PCI region 3: 00000000 with 0 kB
PCI region 4: 00000000 with 0 kB
PCI region 5: 00000000 with 0 kB
PCI region 6: f1e00000 with 2048 kB
PCI region 7: 00000000 with 0 kB
PCI region 8: 00000000 with 0 kB
PCI region 9: 00000000 with 0 kB
PCI region 10: 00000000 with 0 kB
PCI region 11: 00000000 with 0 kB
Trying PCI STI ROM at f1e00000, PCI hpa at f6000000
I'm not trying to set up the PCI graphic card now... It would freeze your machin
e
Unable to handle STI device 'PCI device 103c:1008 (Hewlett-Packard Company)'
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI en
abled
ttyS00 at iomem 0xffd05800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf2003800 (irq = 106) is a 16550A
ttyS02 at iomem 0xf1003800 (irq = 170) is a 16550A
Lasi PS/2 receive buffer timeout
PS/2 keyboard port at 0xffd08000 (irq 69) found, no device attached.
Lasi PS/2 transmit buffer timeout
PS/2 psaux port at 0xffd08100 (irq 69) found, no device attached.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre6 (July 2, 2001)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 7809 advertising 0101.
eth0: Digital DS21143 Tulip rev 48 at 0xff00, 00:10:83:03:2C:1C, IRQ 96.
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 19, function 0
sym53c8xx: 53c875 detected
sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 99
sym53c875-0: ID 7, Fast-20, Parity Checking
scsi0 : sym53c8xx-1.7.3c-20010512
  Vendor: SEAGATE   Model: ST34520WS         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
  Vendor: HP        Model: CD-Writer 6020    Rev: 1.07
  Type:   CD-ROM                             ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
sym53c875-0-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 4, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.12
Lasi Harmony Audio rev. 6 at 0xffd04000, using IRQ 82
sticonsole_init: searching for STI ROMs
BUG: Skipping previously registered driver: sti (native)
STI PCI ROM enabled at 0xf1e00000
PCI graphic ROM found at f1e00000 (2048 kB), fb @ f6000000 (32 MB)
PCI region 0: f6000000 with 32768 kB
PCI region 1: 00000000 with 0 kB
PCI region 2: 00000000 with 0 kB
PCI region 3: 00000000 with 0 kB
PCI region 4: 00000000 with 0 kB
PCI region 5: 00000000 with 0 kB
PCI region 6: f1e00000 with 2048 kB
PCI region 7: 00000000 with 0 kB
PCI region 8: 00000000 with 0 kB
PCI region 9: 00000000 with 0 kB
PCI region 10: 00000000 with 0 kB
PCI region 11: 00000000 with 0 kB
Trying PCI STI ROM at f1e00000, PCI hpa at f6000000
I'm not trying to set up the PCI graphic card now... It would freeze your machin
e
Unable to handle STI device 'PCI device 103c:1008 (Hewlett-Packard Company)'
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Adding Swap: 251492k swap-space (priority -1)
ip_tables: (c)2000 Netfilter core team
ip_conntrack (4006 buckets, 32048 max)
VFS: Disk change detected on device sr(11,0)
ISO 9660 Extensions: RRIP_1991A
ISO 9660 Extensions: RRIP_1991A
Lasi PS/2 transmit buffer timeout

do_page_fault() pid=5087 command='scrollkeeper_to' type=15 address=0x00000008

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 40250e70 00012003 00034640
r4-7     00023060 00000000 00000008 faf00788
r8-11    00000000 000aa708 000ac708 000ab3e8
r12-15   00000000 000ab548 ffffffff 00000000
r16-19   00000000 0009cd64 00000003 00000008
r20-23   0000000a 00000000 00000000 00000000
r24-27   00032640 00000001 00034640 000226e4
r28-31   00000000 00034638 faf00c80 00001630
sr0-3    000005fc 000005fc 00000000 000005fc
sr4-7    000005fc 000005fc 000005fc 000005fc

IASQ: 000005fc 000005fc IAOQ: 0001200f 00012013
 IIR: 0cb01093    ISR: 000005fc  IOR: 00000008
 CPU:        0   CR30: 1961c000 CR31: 10338000
 ORIG_R28: 01000001

do_page_fault() pid=14740 command='scrollkeeper_to' type=15 address=0x00000008

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 40250e70 00012003 00034640
r4-7     00023060 00000000 00000008 faf00788
r8-11    00000000 000aa708 000ac708 000ab3e8
r12-15   00000000 000ab548 ffffffff 00000000
r16-19   00000000 0009cd64 00000003 00000008
r20-23   0000000a 00000000 00000000 00000000
r24-27   00032640 00000001 00034640 000226e4
r28-31   00000000 00034638 faf00c80 00001630
sr0-3    00005fc1 00005fc1 00000000 00005fc1
sr4-7    00005fc1 00005fc1 00005fc1 00005fc1

IASQ: 00005fc1 00005fc1 IAOQ: 0001200f 00012013
 IIR: 0cb01093    ISR: 00005fc1  IOR: 00000008
 CPU:        0   CR30: 19e94000 CR31: 10338000
 ORIG_R28: 01000001
xam@beast:~$ more /proc/pci
PCI devices found:
  Bus  0, device  19, function  0:
    SCSI storage controller: Symbios Logic Inc. (formerly NCR) 53c875 (rev 4).
      IRQ 99.
      Master Capable.  Latency=255.  Min Gnt=17.Max Lat=64.
      I/O at 0xfe00 [0xfeff].
      Non-prefetchable 32 bit memory at 0xf2ffd000 [0xf2ffd0ff].
      Non-prefetchable 32 bit memory at 0xf2ffe000 [0xf2ffefff].
  Bus  0, device  20, function  0:
    Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 48)
.
      IRQ 96.
      Master Capable.  Latency=255.  Min Gnt=20.Max Lat=40.
      I/O at 0xff00 [0xff7f].
      Non-prefetchable 32 bit memory at 0xf2fff000 [0xf2fff07f].
  Bus  1, device   4, function  0:
    Display controller: PCI device 103c:1008 (Hewlett-Packard Company) (rev 2).
      IRQ 160.
      Master Capable.  Latency=255.
      Non-prefetchable 64 bit memory at 0xf6000000 [0xf7ffffff].
xam@beast:~$




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>On Tue, 18 Dec 2001, Peter Mottram wrote:
>think that best bet is rather lynx :-).
>
Be sure to also try 'links' - it renders tables, and goes a long way.
It's perfectly possible to read freshmeat / slashdot / amazon etc.
with.

Good luck,
Jurriaan




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> Be sure to also try 'links' - it renders tables, and goes a long way.
> It's perfectly possible to read freshmeat / slashdot / amazon etc.
> with.
Just for completeness - w3m is pretty good at rendering tables as well as
framesets (and works together nicely with fbi to view pictures on fb devices).

ad




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Hi all !

For all those MacOS X users out there (there is one here, are there 
others ??), we've built a hppa-linux cross-compiler running under MacOS 
X ... You can get it on our website (www.esiee.fr/puffin ).


Off Topic : you can see (among others things !) the G4 with our webcam, 
back online after 6 months  ;)

Clement
PA/Linux ESIEE Team




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Jan-Benedict Glaw wrote:
> On Tue, 2001-12-18 21:28:42 +1000, robert stanford <rob@rotapile.com>
> wrote in message <1008674922.25986.4.camel@rotapile>:
> > Hi everybody,
> >         Just got a HP K class 9000 series  with dual 240Mhz PA-RISC 8200
> > processors,32 serial ports, 24 scsi drives, 6 ups's, dat drive  and fast
> > wide diff scsi tape drive  in a 2 m case. Electrician comes over
> 
> *plonk*

Jan,
If that was you falling over, that's about right.
But dropping a K-class would be a bit louder ;^)

Robert,
K-class is only partially supported.
serial ports you probably can forget.
Anything connected via HP-PB slot (aka NIO) doesn't work either.
Search the mail archives (lists.parisc-linux.org) for "K-class"
for hints on getting a K-class booted.

grant



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Markus Grabert wrote:
> Hi all,
> Since I don't have a good monitor that
> even supports the 1024x768/75Hz of the HP (but just 72Hz),

When powering on the box, hit TAB key to select other resolutions
and frequencies. One can also change the selection from the
BOOT_ADMIN (BCH) prompt. Mail archives have lots of notes about this.
Can someone write something up for the FAQ if it's not already
in the FAQ?
I'll add/change the FAQ should someone not have needed permissions..

I'm not the debian expert for your other questions.
You might repost those on debian-hppa@lists.debian.org.
(I hope I have the list address correct - just typed something
that sounds right)

grant



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"Stan Brown" wrote:
>  Is the kernel really not posible to compile on a PA-RISC machine yet, and
>  if so should I set up a cross compilation environemnt, or are the prebuilt
>  kernels likely to have everythig I need?

yesterday I updated the How-To Build a kernel page.
See the navigation bar on www.parisc-linux.org for the link.
Please send feedback on it to me (or this list).

thanks,
grant



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"JOERGENSEN,RUNAR (HP-Norway,ex1)" wrote:
> I'm having X startup problems with a C200 (Raven/U+)
...
> about: FBIOPUT_VSCREENINFO: invalid argument
> AddScreen/ScreenInit failed for driver 0
...
> XFree86 version: 4.1.0.1
> OS: Linux 2.4.9-pa79 parisc64 [ELF] 

Try a 32-bit kernel.
64-bit kernel might want an ioctl "wrapper" which hasn't been written.
Newer kernels are available on ftp://ftp.parisc-linux.org/kernels/32

grant



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On Tue, 18 Dec 2001, Grant Grundler wrote:

> Markus Grabert wrote:
> > Hi all,
> > Since I don't have a good monitor that
> > even supports the 1024x768/75Hz of the HP (but just 72Hz),
>
> When powering on the box, hit TAB key to select other resolutions
> and frequencies. One can also change the selection from the
> BOOT_ADMIN (BCH) prompt. Mail archives have lots of notes about this.

Been there, done that already.
My fault, I told you something wrong: my monitor is even not
capable of 1024x768/72Hz! (It understands however the 1024x768/70 of my
Sun SPARCstation LX).
I should have explaned that 1024x768 is the lowest solution
of the C240 offers me. The others (1024x768 at 72 or 75Hz) obviously won't
work. So there is no way of using STI and stifb, since even the lowest
resolution isn't supported by my monitor.
The graphic card works however (tested all modes with a 20" monitor
of a friend).

> Can someone write something up for the FAQ if it's not already
> in the FAQ?
> I'll add/change the FAQ should someone not have needed permissions..

:-)

> I'm not the debian expert for your other questions.
> You might repost those on debian-hppa@lists.debian.org.
> (I hope I have the list address correct - just typed something
> that sounds right)

great,
 thanks max




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On Tue, 18 Dec 2001, Markus Grabert wrote:

sorry for replying myself!

> > Markus Grabert wrote:
>
> My fault, I told you something wrong: my monitor is even not
> capable of 1024x768/72Hz! (It understands however the 1024x768/70 of my
> Sun SPARCstation LX).
> I should have explaned that 1024x768 is the lowest resolution
> of the C240 offers me. The others (1024x768 at 72 or 75Hz) obviously won't
                                     ^^^^^^^^
                                        = 1280x1024

> work. So there is no way of using STI and stifb, since even the lowest
> resolution isn't supported by my monitor.
> The graphic card works however (tested all modes with a 20" monitor
> of a friend).

One more question:
Is it possible to add custom resolutions (mode 6 says something about
custom resolution) ?

greetings max





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Markus Grabert wrote:
> One more question:
> Is it possible to add custom resolutions (mode 6 says something about
> custom resolution) ?

Yes. I don't know exactly how though. I'd look in the User's Guide
for that (might be available on docs.hp.com).

grant



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On Tue, Dec 18, 2001 at 03:50:24PM +0000, Markus Grabert wrote:
> do_page_fault() pid=5087 command='scrollkeeper_to' type=15 address=0x00000008

I looked in to this, btw, it is not hppa specific, see bug #103224

Richard




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On Tue, Dec 18, 2001 at 02:22:15PM +0100, Jochen Friedrich wrote:
> is it necessary to perform something similar to eisa_permute for ISA
> memory space? At least on IBM Token Ring cards the driver fails to get
> correct data if (memory & 0x300) == 0:

not from my memories of the mongoose docs.  unfortunately, i don't have
access to those again until jan 10th or so.  how does the driver access
the card?  readb/writeb or dma?

-- 
Revolutions do not require corporate support.



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Hi Matthew.

> not from my memories of the mongoose docs.  unfortunately, i don't have
> access to those again until jan 10th or so.  how does the driver access
> the card?  readb/writeb or dma?

It is pure readb/writeb. 

I also let the driver create a memory dump during initialization time and 
the dump shows stripes of 0xFF from 0xD0000-0xD00FF, 0xD0400-0xD04FF, etc 
(addresses are ISA space), while the card firmware seems to initialize all 
memory to 0x00.

Cheers,
Jochen




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On Mon, Dec 17, 2001 at 09:34:34AM -0600, Bryan W. Headley wrote:
> Since my C110 has a fast/wide, and so does my 735, I'm in the bad spot 
> of never really having either machine fully boot up. The CDROM drive I 
> have doesn't "like" RW discs, so I'd love to see someone stamp out a 
> Woody-ish master that I can read from.

FWD disks on 53c720 on C110 should work these days.  Either use a recent
kernel, or use the workaround in the 0.9.3 ISO errata.  They wont work on
the 735 because the processor on that box doesn't support consistent
memory (pci_alloc_consistent() fails).

My parisc boxes don't like CD-RW disks either, but are quite happy with
CD-R disks I burn myself.

Richard




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Hello parisc-linux users,

i can not get samba to work on my 720 with the 0.9.3 Debian.
smbd dies immediatly with an error message in log.smbd:
[2001/12/16 19:51:43, 0] lib/messages.c:message_init(97)
  ERROR: Failed to initialise messages database

A messages.tdb exists. Every tool seems to have problems with *.tdb
hp-tux:/usr/src/samba-2.2.2/source/bin# ./smbstatus -s /etc/samba/smb.conf
connections.tdb not initialised

First i had installed the samba (v 2.2.2) package from the CD with
apt-get. After that didn't worked, i removed it and compiled my own from
the native source. Same problem - same error.

./configure and make went smoothly so i dont understand
what the reason of this error is.  

As i thought this would be a samba error i asked for help
on the samba mailing list, but did not get an answer.
So i am now stuck with this error ...
Does anyone use samba on parisc-linux ?
Could this be a problem with some underlying software which samba
depends on ?
I use samba since years on x86-Linux and have never seen such things
bevore.

-- 
Best regards,
 Joerg                          J.Hartmann@reinarts.de




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On Mon, Dec 17, 2001 at 02:15:58PM +0100, Andy Walker wrote:
> Quoting Andy Walker <squawker@start.no>:
> 
> > I had to pull the Bluefish F/W-Diff card (or at least disconnect the
> > disk) but it may have been termination problems causing the timeouts/
> > resets. Something else to test :-)
> 
> Okay, checked termination. Tried a different disk. Booted HP-UX on
> that disk. No luck with Linux.
> 
> Relevant part of the dmesg is:
> 
> ...
> 18. Bluefish Add-on FW-SCSI (4) at 0xfff8c000 [11], versions 0x13, 0x0, 0x89
> ...
> zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
> ncr53c8xx: 53c720 detected
> ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
> scsi0 : ncr53c8xx-3.4.3b-20010512

Don't know why that is failing; does it always fail, or is it an
intermittant problem?  e.g. Are the disks detected at boottime?

You might try booting with something like

ncr53c8xx=sync:255,burst:0,verb:2

which slows it down and might help if it is intermittant (just guessing though)

Richard




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On Thu, Dec 13, 2001 at 10:25:32PM -0700, Grant Grundler wrote:
[snip]
> I punt. Met my web site hacking quota for the day...some substantial
> updates to the 0.9.3 errata:
> 	http://www.parisc-linux.org/release-0.9/errata-093.html
> 
> (You do want to know how to avoid file corruption right?)
[snip]

Oh I'm glad that's fixed :)  I was seeing fs corruption on a
D270 with an NCR53c720 and wasn't sure if it was the hardware or
the kernel or something stupid I had done :)

-- 
Michael Wood <mwood@its.uct.ac.za>



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Quoting Richard Hirst <rhirst@linuxcare.com>:
> > 
> > ...
> > 18. Bluefish Add-on FW-SCSI (4) at 0xfff8c000 [11], versions 0x13,
> 0x0, 0x89
> > ...
> > zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
> > ncr53c8xx: 53c720 detected
> > ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
> > scsi0 : ncr53c8xx-3.4.3b-20010512
> 
> Don't know why that is failing; does it always fail, or is it an
> intermittant problem?  e.g. Are the disks detected at boottime?
> 
> You might try booting with something like
> 
> ncr53c8xx=sync:255,burst:0,verb:2
> 
> which slows it down and might help if it is intermittant (just guessing
> though)
> 
> Richard
> 

Hi Richard,

Yep, it always fails. If there's a disk on the bus (I've tried a couple
of different ones) it will always hang on boot with timeouts and bus
resets when trying to find the disk.

To triple check the termination, I installed the terminator packs on
the card and moved the cable from the internal connector to the
external one. No difference there, even with your kernel parameter
suggestion.

Here's the verbose output from a boot without a disk connected:

zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
ncr53c8xx: 
setup=disc:y,specf:3,tags:8,sync:255,burst:0,wide:y,diff:0,revprob:n,buschk:0x1
ncr53c8xx: 
setup=mpar:y,spar:y,fsn=n,verb:2,debug:0x0,led:n,settle:2,irqm:0x0,nvram:0x1,pci
fix:0x0
ncr53c8xx: 53c720 detected
ncr53c720-0: using memory mapped IO at virtual address 0xfff8c800
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
ncr53c720-0: initial SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 00/00/20/00/80/00
ncr53c720-0: final   SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 03/00/20/00/88/00
ncr53c720-0: resetting, command processing suspended for 2 seconds
ncr53c720-0: restart (scsi reset).
scsi0 : ncr53c8xx-3.4.3b-20010512
ncr53c720-0: command processing resumed

I'm gonna try one more disk, one that I've tested with Linux on the B132,
but that won't be until tomorrow.

-Andy



------------------------------------------------------------
F din egen @start.no-adresse gratis p http://www.start.no/



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On Wed, Dec 19, 2001 at 01:28:44PM +0100, Joerg Hartmann wrote:
> Hello parisc-linux users,
> 
> i can not get samba to work on my 720 with the 0.9.3 Debian.
> smbd dies immediatly with an error message in log.smbd:
> [2001/12/16 19:51:43, 0] lib/messages.c:message_init(97)
>   ERROR: Failed to initialise messages database

This looks like a glibc problem to me - I think it is calling fcntl
where it should be calling fcntl64, and using FSETLKW rather than
F_SETLKW64.

samba builds with

-D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE

Using a test program, without those defines, i386 strace shows:

fcntl64(3, F_SETLKW, {type=F_WRLCK, whence=SEEK_SET, start=0, len=1}) = 0

with those defines:

fcntl64(3, F_SETLKW64, {type=F_WRLCK, whence=SEEK_SET, start=0, len=1}, 0xbffffa9c) = 0


Now on hppa, without those defines

fcntl(3, F_SETLKW, {type=F_WRLCK, whence=SEEK_SET, start=0, len=1}) = 0

and with them:

fcntl(3, F_SETLKW, {type=F_WRLCK, whence=SEEK_SET, start=31, len=0}) = 0


note that 'start' and 'len' are wrong in the last case; I think that's
because glibc used a 64 bit struct flock, but didn't specify F_SETLKW64
(and didn't call fcntl64).

Richard




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"JOERGENSEN,RUNAR (HP-Norway,ex1)" wrote:
> I'm a bit confused because I though we installed
> the 32bit version. In fact, when we boot we get
> thew following kernel: /boot/vmlinux-2.4.9-32.
> When I do a "file" on /boot/vmlinux-2.4.9-32,
> I get 32bit ELF executable.

Look at /etc/palo.conf and see what vmlinux it points to.
That's the one that's getting loaded/run.
By default you should have gotten a 32-bit kernel.
I doubt the syscall wrapper is the issue.

Newer 2.4.16 kernels are available from ftp.parisc-linux.org/kernels/32.
I suggest grabbing one of those.

> The OS line I presented was picked from what
> "XFree86 -version" reports.

eg. Build Operating System: Linux 2.4.13 i686 [ELF] 

"uname -m" will tell you which vmlinux you are running on *now*.
Not which one the XF86 binaries where built on.

> A mismatch in the image itself?

not likely.
Sounds like you have the original, mostly working kernel still.
Just try a newer one.

grant



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Andy Walker wrote:
> To triple check the termination, I installed the terminator packs on
> the card and moved the cable from the internal connector to the
> external one. No difference there, even with your kernel parameter
> suggestion.

Couple more things:
o make sure your disks are *not* terminated - just both ends of the bus.
o double check all connectors to make sure there are no bent pins.
o replace any cables you can - especially external ones.
o verify the disks are the correct type. For c720, I expect
  *differential* SCSI.  Single Ended disks were used with LASI based
  machines (53c710) and built-in fast/wide on a few of the BXXX/CXXX
  workstations.

grant



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On Wednesday 19 December 2001 10:56 am, Grant Grundler wrote:
- - - snip - - -
> o verify the disks are the correct type. For c720, I expect
>   *differential* SCSI.  Single Ended disks were used with LASI based
>   machines (53c710) and built-in fast/wide on a few of the BXXX/CXXX
>   workstations.

My 9000/720/50 has factory labels on the external disk connectors specifing 
the type of disk to use ("Warning, use single ended disks only").

Perhaps the 725/100 has similar labels (inside or outside the box).

Mike



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Interesting - C180, 4G FWSCSI.5, Plextor CD SESCSI.5, 0.93 ISO. On install
I had a segfault in the base-config, which bombed the rest of the install.
Manually added FTP, pulled the latest kernel, reboot and now I can get APT
etc to run, but every time it tries to update libc6 I get an error -
"unable to stat './usr/lib/gconv/CP1251.so' (which I was about to install
): Value too large for defined data type", then libc6 fails to install.

At first I thought the crashing might be FWSCSI related, so I added the
palo parameter (burst:3) to it; somewhere between that and the -pa20
kernel I've cured the segfaults. Is there something I missed in the list
archives about this? Or, since this is a brand-new install, should I just
rerun the install from scratch with some different selection?




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Tom wrote:
> I had a segfault in the base-config, which bombed the rest of the install.

"debsums -s" will tell you which packages got corrupted during install.
Sounds like you could mount the CD and "dpkg -i" the base packages again.
Then run apt-get update/dist-upgrade.

grant




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From: "Grant Grundler" <grundler@dsl2.external.hp.com>

> Andy Walker wrote:
> > To triple check the termination, I installed the terminator packs on
> > the card and moved the cable from the internal connector to the
> > external one. No difference there, even with your kernel parameter
> > suggestion.
>
> Couple more things:
> o make sure your disks are *not* terminated - just both ends of the bus.

Already checked. The internal cable has a terminator built into the end. The
disks are definitely not terminated.
In the original configuration the internal was attached to the internal
connector. There wer no terminator packs on the card itself, and there was
a terminator attached to the external connector.
In the second configuration, I hung the internal cable on the external
connector, and installed the terminator packs on the card. Same results.

> o double check all connectors to make sure there are no bent pins.
> o replace any cables you can - especially external ones.

I'll double check all this tomorrow, but the fact that I can boot HP-UX
off of these disks suggests that the hardware is intact. At the moment
I'm only using a single internal cable - I'll swap it and see what
happens.

> o verify the disks are the correct type. For c720, I expect
>   *differential* SCSI.  Single Ended disks were used with LASI based
>   machines (53c710) and built-in fast/wide on a few of the BXXX/CXXX
>   workstations.

Well, one of the disks in question is the original HP-UX boot disk for
this machine, and its a Seagate WD prefix disk. The other disk I tried
is also a WD disk, taken from a C110. The Bluefish is reported as diff
by the 53c8xx driver, it says differential on the external connector -
there can't be any doubt, can there? This should all work together.

Obviously, my initial thoughts went to the know problems with the c720
on 735's. The problem does seem very similar - I understood that the
735 problem was caused by some weirdo HP glue logic chip. Could this
not be a similar case?

Anyway, I'll take an known good disk with me tomorrow and try that with
a different internal cable. I'll also double check that everything is
still working with HP-UX. More news as it breaks.........

-Andy




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"Andy Walker" wrote:
> by the 53c8xx driver, it says differential on the external connector -
> there can't be any doubt, can there? This should all work together.

It sounds like it should all just work. Especially if HPUX works.
But HPUX sometimes cripples the bus speed or *wideth* based
on what PDC tells it. Perhaps you need to do the same. I really
don't expect any issues with bus speed on differential SCSIs.
Possibly a wide vs narrow bus issue (Chip thinks it's wide and the cabling
is narrow). We see that on C3k still and I started (but didn't finish)
the code to query PDC about Host SCSI ID, bus speed, and width.

> Anyway, I'll take an known good disk with me tomorrow and try that with
> a different internal cable. I'll also double check that everything is
> still working with HP-UX. More news as it breaks.........

Yeah - if HPUX boots/talks to the devices, they are basically ok.
It's a matter of getting the linux driver the right parameters then.

grant




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On Wed, Dec 19, 2001 at 01:40:48PM -0700, Grant Grundler wrote:
> "Andy Walker" wrote:
> > by the 53c8xx driver, it says differential on the external connector -
> > there can't be any doubt, can there? This should all work together.
> 
> It sounds like it should all just work. Especially if HPUX works.
> But HPUX sometimes cripples the bus speed or *wideth* based
> on what PDC tells it. Perhaps you need to do the same. I really
> don't expect any issues with bus speed on differential SCSIs.
> Possibly a wide vs narrow bus issue (Chip thinks it's wide and the cabling
> is narrow). We see that on C3k still and I started (but didn't finish)
> the code to query PDC about Host SCSI ID, bus speed, and width.
> 
> > Anyway, I'll take an known good disk with me tomorrow and try that with
> > a different internal cable. I'll also double check that everything is
> > still working with HP-UX. More news as it breaks.........
> 
> Yeah - if HPUX boots/talks to the devices, they are basically ok.
> It's a matter of getting the linux driver the right parameters then.

>From drivers/scsi/README.ncr53c8xx, you can force narrow by booting with

ncr53c8xx=wide:0

and disable tagged commands with

ncr53c8xx=wide:0,tags:0

and force async with

ncr53c8xx=wide:0,tags:0,sync:255

and disable dma burst with

ncr53c8xx=wide:0,tags:0,sync:255,busrt:0

and disable disconnect with

ncr53c8xx=wide:0,tags:0,sync:255,burst:0,disc:n


Richard




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This is a multi-part message in MIME format.

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please remove me old email from the database and please add my new one, =
much



david.standen@nexos.freeserve.co.uk    OLD
david.standen@blueyonder.co.uk            NEW

thanks
David

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<DIV><FONT face=3DArial size=3D2>please remove me old email from the =
database and=20
please add my new one, much</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><A=20
href=3D"mailto:david.standen@nexos.freeserve.co.uk">david.standen@nexos.f=
reeserve.co.uk</A>&nbsp;&nbsp;&nbsp;=20
OLD</FONT></DIV>
<DIV><FONT face=3DArial size=3D2><A=20
href=3D"mailto:david.standen@blueyonder.co.uk">david.standen@blueyonder.c=
o.uk</A>&nbsp;&nbsp;&nbsp;=20
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; NEW</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>thanks</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>David</FONT></DIV></BODY></HTML>

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Subject: Re: [parisc-linux] Status report - B132L and 725/100
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On Mon, Dec 17, 2001 at 12:47:23PM +0100, Andy Walker wrote:
> Here's the dmesg from the 725/100. The unknown scancode, 7f, is
> less-than/greater-than on a Norwegian PS/2 keyboard. I imagine that
> can be fixed :-)

I have a UK keyboard here with 7f generated by the bar+backslash key.
Turns out that to make it works I have to use dumpkeys to discover
that the keycode I want is 86 (decimal), and then running
"setkeycodes 7f 86" makes the key work.  And yes, that is a hex 7f
with no '0x' followed by a decimal 86!

Before this will work with a PS/2 keyboard, you need a new kernel,
2.4.16-pa21 or better, as there was a bug in the set/getkeycode code.

Richard




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> Tom wrote:
> > I had a segfault in the base-config, which bombed the rest of the install.

> Grant:
> "debsums -s" will tell you which packages got corrupted during install.
> Sounds like you could mount the CD and "dpkg -i" the base packages again.
> Then run apt-get update/dist-upgrade.

debsums came back with an all-OK, I could install anything unless it
needed a libc6 update, in which case it failed.

Since this was a brand-new install, I used the prior palo options to
disable everything 'good' on the FWSCSI, then reinstalled. Everything so
far has worked perfectly...

I guess this was just "gremlins" :-)




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On Wed, Dec 19, 2001 at 10:51:41AM -0900, Tom wrote:
> Interesting - C180, 4G FWSCSI.5, Plextor CD SESCSI.5, 0.93
> ISO. On install I had a segfault in the base-config, which
> bombed the rest of the install.  Manually added FTP, pulled
> the latest kernel, reboot and now I can get APT etc to run,
> but every time it tries to update libc6 I get an error -
> "unable to stat './usr/lib/gconv/CP1251.so' (which I was about
> to install): Value too large for defined data type", then
> libc6 fails to install.

Might be fs corruption.  I got a similar error on a corrupted
filesystem:

(Reading database ... 6812 files and directories currently installed.)
Preparing to replace libc6 2.2.4-3 (using .../libc6_2.2.4-7_hppa.deb) ...
Unpacking replacement libc6 ...
dpkg: error processing /var/cache/apt/archives/libc6_2.2.4-7_hppa.deb (--unpack):
 unable to stat `./usr/share/zoneinfo/Australia/Lindeman' (which I was about to install): Input/output error
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/libc6_2.2.4-7_hppa.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

And:

# ls -l /usr/share/zoneinfo/Australia/Lindeman 
ls: /usr/share/zoneinfo/Australia/Lindeman: Input/output error

After forcing an fsck on the relevant filesystem, it worked much
better :)

-- 
Michael Wood <mwood@its.uct.ac.za>



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From: joel.soete@freebel.net
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Subject: [parisc-linux] Problem with 2.4.16-pa20 fb and  Xfree86
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Hi all,

Is some one else met the same problem:
I boot with kernel 2.4.9-32 (Debian pool) and use Xfce and all works kindly.
I cvs update the kernel 2.4.16-pa20 recompile it, install it, reboot it and
launch Xfce which start well excepted that all is black but the border of a
xterm (in which caracters are fortunately white); when I click in the background
I have well access to the menu?

Is something is broken in fb in 2.4.16? (sorry I do not have enought time to
test X after each cvs update to notice exactely when this problem appears)

Thanks in advance for all advises,
        Joel

PS: I use a b180L on which I do an apt-get dist-upgrade yesterday (Dec 19, 2001).

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Quoting Richard Hirst <rhirst@linuxcare.com>:

> On Wed, Dec 19, 2001 at 01:40:48PM -0700, Grant Grundler wrote:
> > "Andy Walker" wrote:
> > > by the 53c8xx driver, it says differential on the external connector
> -
> > > there can't be any doubt, can there? This should all work
> together.
> > 
> > It sounds like it should all just work. Especially if HPUX works.
> > But HPUX sometimes cripples the bus speed or *wideth* based
> > on what PDC tells it. Perhaps you need to do the same. I really
> > don't expect any issues with bus speed on differential SCSIs.
> > Possibly a wide vs narrow bus issue (Chip thinks it's wide and the
> cabling
> > is narrow). We see that on C3k still and I started (but didn't
> finish)
> > the code to query PDC about Host SCSI ID, bus speed, and width.
> > 
> > > Anyway, I'll take an known good disk with me tomorrow and try that
> with
> > > a different internal cable. I'll also double check that everything
> is
> > > still working with HP-UX. More news as it breaks.........
> > 
> > Yeah - if HPUX boots/talks to the devices, they are basically ok.
> > It's a matter of getting the linux driver the right parameters then.
> 
> >From drivers/scsi/README.ncr53c8xx, you can force narrow by booting
> with
> 
> ncr53c8xx=wide:0
> 
> and disable tagged commands with
> 
> ncr53c8xx=wide:0,tags:0
> 
> and force async with
> 
> ncr53c8xx=wide:0,tags:0,sync:255
> 
> and disable dma burst with
> 
> ncr53c8xx=wide:0,tags:0,sync:255,busrt:0
> 
> and disable disconnect with
> 
> ncr53c8xx=wide:0,tags:0,sync:255,burst:0,disc:n
> 
> 
> Richard

Absolutely no luck at all :-( Different disk, different cable - same
results. Tried Richard's parameter settings - nothing helps. Tried
ncr53c8xx=safe:y, still no joy.

But if I hang an HPUX bootdisk on the card, I can boot happily from
it. Bah!

Do we know of anybody who has one of these cards working?

-Andy

------------------------------------------------------------
F din egen @start.no-adresse gratis p http://www.start.no/



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Subject: Re: [parisc-linux] Status report - B132L and 725/100
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On Thu, Dec 20, 2001 at 11:06:09AM +0100, Andy Walker wrote:
> Do we know of anybody who has one of these cards working?

bluefish cards are working on some machines - B180, Cxxx, for example,
but I'm not aware of anyone running one in a 725/100.  The linux driver requires
coherent memory to work (typically non-cached), and that feature isn't
provided across all PARISC CPU flavours.  In theory your 725/100 supports that
and so should work.  fwiw, the CPU in 735 doesn't support coherent memory, which
is why my attempt to add support for 53c720 on 735 (outfield) failed.

Richard




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On Fri, Dec 14, 2001 at 04:11:37PM +0200, Tommi Aihkisalo wrote:
> Hello all!
> 
> I am having a problem with my 712/80 when booting with bootp/tftp. With some
> effort I got it requesting kernel image (lifimage) over the network. The
> download starts but almost the same time it ends and it retries it over and
> over again. With Weird-solution's bootp and tftp server I can see that the
> download starts many times but all of them results error. When using the
> RedHat's bootp/tftp, the tcpdump shows (what I have understood from the
> output) that the HP is querying a file of name '.' (dot), this is quite
> strange...
> 
> Have I understood correctly that the lifimage (from the 0.9.3 installation
> cd) is the correct kernel image?

Sorry for the slow response.  I just tried netbooting a 712 using the
lifimage on the 0.9.3 ISO (dists/woody/main/disks-hppa/current/lifimage),
and it booted fine.  The palo command line does say 0/linux, while the
lifimage contains linux32 and linux64 (or similar), but that is not a
problem - palo figures out that it is on a 32 bit box and selects the
32 bit kernel correctly.  I was using a Mandrake box as bootp/tftp server.

Richard




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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: [parisc-linux] Status Documentation for Server of E-Series and similar ...
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Hello Mr, Meyer,

what is the status of the document releasing of the E-Series and
other machines (for example E55, 9000/856).

I added a device driver to the kernel to use the ROM PDC console
as Linux console device, so there are many kernel developers, who
can start device driver development on those machines (for example
my E55 server can boot Linux diskless ...).

So I think there is massive interests on driver development on those
machines, and I hope you can help here.

With friendly regards
Christoph P.


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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On Sun, Dec 16, 2001 at 09:34:45PM +0100, Rdiger Scholz wrote:
> Another problem : Using mpg321 from the 0.9.3 release gives me  the 
> failure "Illegal instruction". Glibc-Version is 2.2.4-7. The stack dump 
> is in the attached boot.log-file.

You need a rebuilt libaudiofile0 deb to fix that, should be in the
archive in a day or two, thanks to tausq.

Richard




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Andy Walker wrote:
> But if I hang an HPUX bootdisk on the card, I can boot happily from
> it. Bah!
> Do we know of anybody who has one of these cards working?

Yes. And it really shouldn't be any different than the
built-in 53c720 on other systems of the same vintage.
I can't pursue this...but getting a SCSI trace or driver
debug info would be the next step.

grant



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On Thursday 20 December 2001 16:15, Richard Hirst wrote:
> On Fri, Dec 14, 2001 at 04:11:37PM +0200, Tommi Aihkisalo wrote:
> > Hello all!
> >
> > I am having a problem with my 712/80 when booting with bootp/tftp. With
> > some effort I got it requesting kernel image (lifimage) over the network.
> > The download starts but almost the same time it ends and it retries it
> > over and over again. With Weird-solution's bootp and tftp server I can
> > see that the download starts many times but all of them results error.
> > When using the RedHat's bootp/tftp, the tcpdump shows (what I have
> > understood from the output) that the HP is querying a file of name '.'
> > (dot), this is quite strange...

Hi Tommi,

did you tried the newest versions of tftp-server on RH ?
AFAIR the tftp-servers in 7.0 and 7.1 were broken and I fixed them 
during my time at RedHat.

Greetings,
Helge





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Herb,

I found the error in the 53c700 scsi driver that created the error
Thomas and I found.  I committed the fix as 2.4.16-pa23.  Can you try
out this kernel and see if this fixes your problem also?

Thanks,

- Ryan

On Mon, 2001-12-17 at 16:33, Ryan Bradetich wrote:
> Hello Herb,
> 
> Thanks to Thomas, I finally found a recipe that I can duplicate this
> error with on my C200+.  I get this exact error when reading from a tape
> drive with bs=10k.  I will track this down and get it fixed.  
> 
> Thanks for the bug report, and thanks to Thomas for the recipie :)
> 
> - Ryan
> 
> 
> On Mon, 2001-12-17 at 14:25, Herb Radford wrote:
> > I have had success and no problems installing the latest 0.9.3 on my B180L, 
> > so I had to be a glutton for punishment and tried on the C110.
> > 
> > Should not have done that. I have successfully installed the kernel and 
> > base for 0.9.3 and ftp'd vmlinux-32-2.4.16-pa16 kernel to the machine and 
> > re-booted to avoid the FWSCSI fs corruption. After that I started to 
> > install the X stuff. When I am doing an apt-get install xfonts-base (or 
> > xfonts-100dpi or xfonts-75dpi) I get a kernel panic:
> > 
> > ccio-dma.c:349: Assertion (*res_ptr & *mask_ptr) == * mask_ptr failed!
> > Kernel panic: (*res_ptr & *mask_ptr) == *mask_ptr
> > In interrupt handler - not syncing
> > 
> > I don't have the source for this and haven't yet looked at the code but I 
> > thought someone would like to know.
> > 
> > Regards, Herb
> > 
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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Herb,

I added back in the parisc-linux list again. I know there has been some
effort to produce official debian kernel images from the CVS tree.  If
you do not want to setup a compile environment, I suspect these kernels
.debs will work for you.  

Otherwise, enjoy and report bugs back :)

Thanks,

- Ryan

On Sat, 2001-12-22 at 15:05, Herb Radford wrote:
> Ryan, that works just peachy!
> 
> Thanks for the quick reply. Now I just have to get my own compile 
> environment set up.
> 
> Regards, Herb
> 
> At 05:31 PM 12/21/01 -0700, you wrote:
> >Herb,
> >
> >I placed 2 images for you to download in the following links.  Use the
> >lifimage if you are net-booting, or use the vmlinux image if you use
> >palo on the native disk.
> >
> >Since these kernels are from my tree (which has a few minor un-committed
> >changes ... I'm working on a new SCSI interface driver), I tagged them
> >with a -rb1.
> >
> >ftp://ftp.parisc-linux.org/kernels/lifimage-2.4.16-pa24-rb1.gz
> >ftp://ftp.parisc-linux.org/kernels/vmlinux-2.4.16-pa24-rb1.gz
> >
> >Hope this helps,
> >
> >- Ryan
> >
> >
> >On Fri, 2001-12-21 at 06:43, Herb Radford wrote:
> > > At 11:08 PM 12/20/01 -0700, you wrote:
> > > >Herb,
> > > >
> > > >I found the error in the 53c700 scsi driver that created the error
> > > >Thomas and I found.  I committed the fix as 2.4.16-pa23.  Can you try
> > > >out this kernel and see if this fixes your problem also?
> > > >
> > > >Thanks,
> > > >
> > > >- Ryan
> > > Ryan, I'm in a bit of a spot as far as compiling a kernel is concerned.
> > > Could you possibly put a 2.4.16-pa23 kernel up on parisc-linux/kernels for
> > > me to try?
> > > If not, then I will attempt to get a compile environment set up but not
> > > likely before next week!
> > >
> > > Regards Herb (and Happy Holidays too!)
> > >
> > >
> 
> 
> 





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> I added back in the parisc-linux list again. I know there has been some
> effort to produce official debian kernel images from the CVS tree.  If
> you do not want to setup a compile environment, I suspect these kernels
> .debs will work for you.  

Default-config 32 and 64-bit kernels are being built from CVS daily, see
http://ftp.parisc-linux.org/kernels/ directories 32 and 64 plus the README.
Source tarballs matching these kernels are in http://ftp.parisc-linux.org/cvs/

	-P



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Yay! Got my C110 up and happy on 0.93.

And now, an X question :-)

I'm getting this on startup of the X server,

	FBIOPUT_VSCREENINFO: Invalid argument

	Fatal server error:
	AddScreen/ScreenInit failed for driver 0

Any ideas? Ran the release note patch, and upgraded to 2.4.16-pa24 to no 
avail. X server is rev 4.1.0-9.0.1.


-- 
____               .:.                 ____
Bryan W. Headley - bheadley@interaccess.com




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Subject: [parisc-linux] 2.4.16-pa24 crashes on c3k
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Hi all,
I can't boot 2.4.16-pa24 on my c3k.
2.4.16-pa20 was working fine.
I'll put the defective .config, vmlinux, System.map on
ftp://gsyprf10.external.hp.com/pub/c3000/2.4.16-pa24-crash.tgz

I'm using serial console. But I can't capture output on my OB500 laptop.
It doesn't want to talk to the serial port - no input or output. 
I'm not understanding why since the same settings/cable work with
the OB600 (much older machine).  I'll try to get a full dump available
in the next couple of days one way or another. Maybe try yet another laptop.

Last couple of lines before stack trace are:

...
SuperIO: Found NS87560 Legacy I/O device at 00:0e.1 (IRQ 64)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
WARNING! Stack pointer and cr30 do not correspond

Dumping Stack from 12298000 to 1229c740:
...
[ does not look like a valid stack trace - data patterns don't look
like what I've seen before and too long ]

Kernel Fault: Code=26 regs=1229c740 (Addr=00000074)

GR02: 1010d51c
GR30: 1229c740
IOAQ: 1010e798
IIR 4b5300e8
CR30: 1229c000 CR31: 10318000
ORIG_R28: 10326dbf

grant



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On Tue, 25 Dec 2001, Grant Grundler wrote:
> Hi all,
> I can't boot 2.4.16-pa24 on my c3k.
> 2.4.16-pa20 was working fine.
> I'll put the defective .config, vmlinux, System.map on
> ftp://gsyprf10.external.hp.com/pub/c3000/2.4.16-pa24-crash.tgz

I just reloaded my C180 with the 0.93 ISO and updated to -pa24 and it's
working fine. (Note to all - the 0.93 ISO will cheerfully allow you to
partition a drive as 35MB type F0, 250MB swap and 4GB root, load all the
software, and boot with the stock kernel and map. Then, when you compile
your new -pa24 kernel, it barfs because you forgot that /boot must end in
the first 2GB... Fortunately I rebooted off the CD, deleted the swap
partition, created a new swap and /boot in that same 250MB area and all is
well.)

My only kernel changes were to the SCSI stuff, I believe, and to remove
all the NICs except the onboard.





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Tom wrote:
> I just reloaded my C180 with the 0.93 ISO and updated to -pa24 and it's
> working fine.

Ok - good to know. I wasn't using the default config file.
But I tried the default config and that dies with similar
console output. I need to lookup the IOAQ and GR02 and try
to figure out how it got there. Must be something related
to suckyio since I'm not using any graphics console and that's
about when console switches over.

BTW, with -pa20, I did try eepro100 driver with both an i82559
and i82550 NIC. I didn't stress either hard (55Mb/s to my laptop
via crossover cable) but they basically work with ftp. I know one
small patch is needed for the 2.4.16 eepro100 driver and hopefully
we'll pick that up with the next merge.

grant



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Subject: Re: [parisc-linux] 2.4.16-pa24 crashes on c3k
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Grant Grundler wrote:
> Must be something related to suckyio since I'm not using any graphics
> console and that's about when console switches over.

Good guess. Just committed 2.4.16-pa25 which fixes.
suckyio requires the first PCI HBA be numbered 0 (and not 1).
Was broken by -pa24 commit.
diff will be posted to parisc-linux-cvs as usual.

grant



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On Tue, Dec 25, 2001 at 11:02:47PM -0700, Grant Grundler wrote:
> Grant Grundler wrote:
> > Must be something related to suckyio since I'm not using any graphics
> > console and that's about when console switches over.
> 
> Good guess. Just committed 2.4.16-pa25 which fixes.
> suckyio requires the first PCI HBA be numbered 0 (and not 1).

Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)

PCI or EISA Host Bus Adapter 3 not registered. in32(0x30030) returning -1
WARNING! Stack pointer and cr30 do not correspond!

Dumping Stack from 10858000 to 108587c0:

that's -pa25 on my B132.

> Was broken by -pa24 commit.

I had the problem as above, when playing with willy's dino patch (hand applied,
so I missed a chunk). I tried to understand the pci resource assigning code
and failed so far. If my headache settles down, I'm might look into that 
again today.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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Subject: [parisc-linux] 64-bit pa20, pa24 fail to boot on my c200
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hello all,

i'm new to this list as well as to the world of linux on the
parisc.  i own a c200 with firmware rev 6.1 which i run with a serial
console.  my machine fails to boot with a 64-bit kernel (either downloaded
from the website or built by me).  i get as far as the message warning you
that if you don't see any further messages it is likely a result of using
the wrong console, then the three right-most LEDs on the front of the
machine stay on.

32-bit kernels built with the same config file work very well.

if there is any more detailed information i can provide, i would be happy
to.

regards,
james mcclain





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Subject: Re: [parisc-linux] 64-bit pa20, pa24 fail to boot on my c200
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James Mcclain wrote:
> my machine fails to boot with a 64-bit kernel (either downloaded
> from the website or built by me).

See the mail archives at http://lists.parisc-linux.org.
Search for C200, CONFIG_PDC_NARROW, or 64-bit.

Short anwser is you need to define CONFIG_PDC_NARROW for 64-bit.

grant



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Hello,

I finally got the C110 running a couple of days ago (thanks to the "magic" 
FW-SCSI command) and things are well so far. I'm trying to add a network 
card needed for the planned use of the machine but so far no luck.

I'm not an expert on the HP HW, but I do remember the (short) EISA days on 
PCs where a .cfg file was needed to teach the PC the specifics of the cards 
(IO ports, interrupts etc.). How does this work with the HP machines ? I 
tried an SMC Ultra 32 and an AC3200 with no luck. One hurdle here is that 
there is a function call in both drivers (as well as other drivers that use 
similar controller chips) that the compiler barks about. (Something like 
isa_eth_copy_and_chksm - don't have the exact at hand right now). I found a 
way around it but the cards are not detected at all. Note these cards use a 
memory window - is that possible with the current EISA support ? Is it 
possible to use generic EISA cards at all or do they have to be supported 
by the boot rom in some way ?

Tried a NE2000 clone too, which was detected but with the wrong interrupt. 
That might be because it's a "hard" configured plug&pray card. PCs have no 
problems detecting the settings correctly, though.

Thanks,
	Christian




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In case you still have the problem, if I remember correctly the reason is 
that the XFree config file is generated in a "PC-ish" manner with a lot of 
different screen definitions and tries to start X in a combination the fb 
device does not support. Edit it to have just an entry for the type of 
screen you have (likely 1280x1024, 8bit).

	Christian







Yay! Got my C110 up and happy on 0.93.

And now, an X question :-)

I'm getting this on startup of the X server,

	FBIOPUT_VSCREENINFO: Invalid argument

	Fatal server error:
	AddScreen/ScreenInit failed for driver 0

Any ideas? Ran the release note patch, and upgraded to 2.4.16-pa24 to no
avail. X server is rev 4.1.0-9.0.1.




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On Wednesday 26 December 2001 23:13, Christian Suder wrote:
> Tried a NE2000 clone too, which was detected but with the wrong interrupt.
> That might be because it's a "hard" configured plug&pray card. PCs have no
> problems detecting the settings correctly, though.

Hi Christian,

Did you tried the "eisa_irq_edge=3,4,5,7,9,10,11,14,15" palo parameter ?
In case your NE2000 card is an ISA card you need to set the EISA irq's to
edge mode which is done with the above command.
Maybe we should think about adding a /proc-interface here ?

Greetings,
Helge 



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 - 2.4.16-pa27
 - simpler and warning-free asm() statemnt in power-off code
 - use cad_pid from kernel/sys.c instead of hardcoded pid 1 for killing init
   process 
- print shutdown-msg on LCD if CONFIG_CHASSIS_LCD_LED is compiled in


--------------Boundary-00=_FT4ZRRD4S05BF82CY4HF
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Index: linux/Makefile
===================================================================
RCS file: /var/cvs/linux/Makefile,v
retrieving revision 1.231
diff -u -p -r1.231 Makefile
--- linux/Makefile	2001/12/26 22:02:47	1.231
+++ linux/Makefile	2001/12/26 23:16:09
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 4
 SUBLEVEL = 16
-EXTRAVERSION = -pa26
+EXTRAVERSION = -pa27
 
 KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
 
Index: linux/arch/parisc/kernel/power.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/power.c,v
retrieving revision 1.4
diff -u -p -r1.4 power.c
--- linux/arch/parisc/kernel/power.c	2001/12/05 18:46:30	1.4
+++ linux/arch/parisc/kernel/power.c	2001/12/26 23:16:20
@@ -15,11 +15,6 @@
  * - ....
  */
 
-#include <asm/irq.h>
-#include <asm/pdc.h>
-#include <asm/gsc.h>
-#include <asm/io.h>
-
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
@@ -27,6 +22,12 @@
 #include <linux/sched.h>
 #include <linux/interrupt.h>
 
+#include <asm/gsc.h>
+#include <asm/pdc.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/led.h>
+
 
 /* For kernel debugging purposes it's sometimes better to have
  * the soft-power switch killing the power at once.
@@ -38,23 +39,21 @@
 /* local time-counter for shutdown */
 static int shutdown_timer;
 
+#define DIAG_CODE(code)		(0x14000000 + ((code)<<5))
 
 /* this will go to processor.h or any other place... */
-/* taken from PCXL ERS pg 82 */
+/* taken from PCXL ERS page 82 */
 #define MFCPU_X(rDiagReg, t_ch, t_th, code) \
-	(0x14000000 + ((rDiagReg)<<21) + ((t_ch)<<16) + ((code)<<5) + ((t_th)<<0) )
+	(DIAG_CODE(code) + ((rDiagReg)<<21) + ((t_ch)<<16) + ((t_th)<<0) )
 	
+#define MTCPU(dr, gr)		MFCPU_X(dr, gr,  0, 0x12)       /* move value of gr to dr[dr] */
 #define MFCPU_C(dr, gr)		MFCPU_X(dr, gr,  0, 0x30)	/* for dr0 and dr8 only ! */
 #define MFCPU_T(dr, gr)		MFCPU_X(dr,  0, gr, 0xa0)	/* all dr except dr0 and dr8 */
 	
 #define __getDIAG(dr) ( { 			\
         register unsigned long __res asm("r28");\
-	__asm__ __volatile__ (			\
-		".word %0 \n\t"			\
-		"nop \n\t"			\
-		: 				\
-		: "i" (MFCPU_T(dr,28))		\
-		: "memory"			\
+	 __asm__ __volatile__ (			\
+		".word %1\n nop\n" : "=&r" (__res) : "i" (MFCPU_T(dr,28)) \
 	);					\
 	__res;					\
 } )
@@ -64,7 +63,8 @@ static int shutdown_timer;
 
 static void deferred_poweroff(void *dummy)
 {
-	kill_proc(1, SIGINT, 0);
+	extern int cad_pid;	/* kernel/sys.c */
+	kill_proc(cad_pid, SIGINT, 1);
 	/* machine_power_off(); */
 }
 
@@ -98,7 +98,11 @@ static void process_shutdown(void)
 	
 	/* wait until the button was pressed for 1 second */
 	if (shutdown_timer == HZ) {
-		printk(KERN_INFO "Shutting down...\n");
+		static char msg[] = "Shutting down...";
+		printk(KERN_INFO "%s\n", msg);
+#ifdef CONFIG_CHASSIS_LCD_LED
+		lcd_print(msg);
+#endif
 		poweroff();
 	}
 }

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Perhaps I spoke too soon about -pa24 being good. After compiling and
rebooting with -pa24, then an apt-get update/dist-upgrade, make no longer
works. Ran a cvs update to -pa27, which had no effect, of course... All I
get is a pause with "_ESCOA", then either a segfault or "Trace/breakpoint
trap" (random).

Any ideas how to troubleshoot this one? I can always reboot to the 2.4.9
kernel, then try to recompile with -pa27, but if I can drag a little info
out of this I'm more than happy to do so.

Everything else appears to work fine...




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On Wed, 26 Dec 2001 23:30:16 +0100
"Helge Deller" <deller@gmx.de> wrote:

> On Wednesday 26 December 2001 23:13, Christian Suder wrote:
> > Tried a NE2000 clone too, which was detected but with the wrong interrupt.
> > That might be because it's a "hard" configured plug&pray card. PCs have no
> > problems detecting the settings correctly, though.
> 
> Hi Christian,
> 
> Did you tried the "eisa_irq_edge=3,4,5,7,9,10,11,14,15" palo parameter ?
> In case your NE2000 card is an ISA card you need to set the EISA irq's to
> edge mode which is done with the above command.
> Maybe we should think about adding a /proc-interface here ?
> 

Thanks Helge,

that "basically" fixed it, i could use the card with 2.4.16-pa23. However as X has problems with this kernel (X server starts but graphics are garbled). I compiled 2.4.16-pa25, and this is what I get: 

Dec 26 20:45:04 c110-linux kernel: Wax EISA Adapter found at 0xfc000000
Dec 26 20:45:04 c110-linux kernel: Warning : device (11, 0x1e, 0x0, 0x90) NOT cl
aimed by EISA Bus Adapter

and then : 
Dec 26 20:45:04 c110-linux kernel: PCI or EISA Host Bus Adapter 0 not registered
. in8(0x300) returning -1
Dec 26 20:45:04 c110-linux kernel: 
Dec 26 20:45:04 c110-linux kernel: PCI or EISA Host Bus Adapter 0 not registered
. in8(0x280) returning -1
Dec 26 20:45:04 c110-linux kernel:
Dec 26 20:45:04 c110-linux kernel: PCI or EISA Host Bus Adapter 0 not registered
. in8(0x320) returning -1

The EISA support should be compiled in, at least I selected it. X is still garbled so no improvement in that area. 

BTW is there a compilation of all the "secret" boot parameters ? It's the second time now that it fixes a problem for me....


Danke nochmal,

	Christian 





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Subject: Re: [parisc-linux] [Q] on EISA support
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On Thursday 27 December 2001 06:25, Christian Suder wrote:
> On Wed, 26 Dec 2001 23:30:16 +0100
>
> "Helge Deller" <deller@gmx.de> wrote:
> > On Wednesday 26 December 2001 23:13, Christian Suder wrote:
> > > Tried a NE2000 clone too, which was detected but with the wrong
> > > interrupt. That might be because it's a "hard" configured plug&pray
> > > card. PCs have no problems detecting the settings correctly, though.
> >
> > Hi Christian,
> >
> > Did you tried the "eisa_irq_edge=3,4,5,7,9,10,11,14,15" palo parameter ?
> > In case your NE2000 card is an ISA card you need to set the EISA irq's to
> > edge mode which is done with the above command.
> > Maybe we should think about adding a /proc-interface here ?
>
> Thanks Helge,
>
> that "basically" fixed it, i could use the card with 2.4.16-pa23. However
> as X has problems with this kernel (X server starts but graphics are
> garbled). I compiled 2.4.16-pa25, and this is what I get:
>
> Dec 26 20:45:04 c110-linux kernel: Wax EISA Adapter found at 0xfc000000
> Dec 26 20:45:04 c110-linux kernel: Warning : device (11, 0x1e, 0x0, 0x90)
> NOT cl aimed by EISA Bus Adapter
>
> and then :
> Dec 26 20:45:04 c110-linux kernel: PCI or EISA Host Bus Adapter 0 not
> registered . in8(0x300) returning -1
> Dec 26 20:45:04 c110-linux kernel:
> Dec 26 20:45:04 c110-linux kernel: PCI or EISA Host Bus Adapter 0 not
> registered . in8(0x280) returning -1
> Dec 26 20:45:04 c110-linux kernel:
> Dec 26 20:45:04 c110-linux kernel: PCI or EISA Host Bus Adapter 0 not
> registered . in8(0x320) returning -1
>
> The EISA support should be compiled in, at least I selected it. X is still
> garbled so no improvement in that area.
>
> BTW is there a compilation of all the "secret" boot parameters ? It's the
> second time now that it fixes a problem for me....

Hi Christian,

try the default config (remove your .config file and then run "make oldconfig").
It just booted here for me with -pa27, so I assume you may have forgotten the
CONFIG_GSC_WAX=y configuration entry. 
Regarding the "secret" boot parameters I think the eisa_irq_edge and some
SCSI variants are the only one we have. I will add them later today to the FAQ.

Greetings,
Helge




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On Wed, Dec 26, 2001 at 02:57:42PM -0700, Thomas Bogendoerfer wrote:
> CVSROOT:	/var/cvs
> Module name:	linux
> Changes by:	tsbogend	01/12/26 14:57:42
> 
> Modified files:
> 	drivers/gsc    : asp.c busdevice.h gsc.c lasi.c wax.c 
> 
> Log message:
> allow the caller of register_busdevice() to povide it's own irq region
> this resolves the problem with dino having a non standard irq region

i'm annoyed you did this rather than simply reorder the code as i said
i had already done in my tree.  please back this out.

-- 
Revolutions do not require corporate support.



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On Wed, Dec 26, 2001 at 11:21:01AM -0700, Grant Grundler wrote:
> James Mcclain wrote:
> > my machine fails to boot with a 64-bit kernel (either downloaded
> > from the website or built by me).
> 
> See the mail archives at http://lists.parisc-linux.org.
> Search for C200, CONFIG_PDC_NARROW, or 64-bit.
> 
> Short anwser is you need to define CONFIG_PDC_NARROW for 64-bit.

and the really short answer is that there's no point in booting a 64-bit
kernel on a c200.  stick to a 32-bit kernel.

-- 
Revolutions do not require corporate support.



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Hi Christian,

> Note these cards use a memory window - is that possible with the
> current EISA support ?

There seems to be an issue with memory mapped windows currently. I have
similar problems with an token ring card which is detected correctly
(detection only uses port IO), but the memory window is only partially
seen by the CPU.

Cheers,
Jochen




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Hi all,

Could anyone point me in the right direction to set up a graphics
moniter. It seems my C180 boots fine with the current CD image with
the serial console.

If I switch to the graphics console the system stops displaying to
the graphics moniter at the "If this is the last message you see
switch consoles..." message in the boot sequence and the screen flashes and
nothing else. The machine does appear to boot as I can telnet in from
a remote system. Any suggestion on where I can see what config files etc
I need to check? I can't seem to ind any information on the web sites.

Thanks!

Sean Anaya
sanaya@gr.hp.com



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Xref: news.gmane.org gmane.linux.ports.parisc:13476

Hi James,

unloading the lasi700 scsi module hangs my PARISC-machine:

hw1306:/# uname -a
Linux hw1306 2.4.16-pa25 #2 Thu Dec 27 13:03:15 CET 2001 parisc unknown

hw1306:/# modprobe lasi700
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
scsi1: (2:0) Synchronous at offset 8, period 236ns
  Vendor: TOSHIBA   Model: CD-ROM XM-3601TA  Rev: 0725
  Type:   CD-ROM                             ANSI SCSI revision: 02

hw1306:/# lsmod
Module                  Size  Used by    
lasi700                 1996   0  (unused)
53c700                 28396   0  [lasi700]
....

hw1306:/# rmmod lasi700
<machine hangs and only responds to pings, no login possible>

The machine is a B180L with an integrated 53c875 (scsi0, compiled into kernel)
and one 53c700 (scsi1, lasi700, as module) with one external CD-ROM drive.

Any ideas ?

Thanks,
Helge



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Xref: news.gmane.org gmane.linux.ports.parisc:13477

i want to upgrade the frimware of an HP 9000 D350 but the only patch i've
found from ftp://us-ffs.external.hp.com/ is to older

 Description: HP 9000 Dx50/Dx60 Firmware revision 36.34
   Date       : 96/09/16
   Patch Size : 944 Kbytes

anyone knows other place where i can download newest patches or this is
realy the lastest patch available?

thanks
-- 
*-------------------------*-----------------------------------------*
| Marco Rodriguez M.      |                                         |
| Ing. Civil Informatica. |   mailto:marco@kiyen.face.ubiobio.cl    |
| U. Bio Bio Conce.       |                                         |
*-------------------------*-----------------------------------------*




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Tom wrote:
> Perhaps I spoke too soon about -pa24 being good. After compiling and
> rebooting with -pa24, then an apt-get update/dist-upgrade, make no longer
> works.

Could you check if make was replaced or one of it's libs?
"debsums -s" would be another good thing to check.
FWIW, make works fine for me with all the recent kernels (if they booted).

> Any ideas how to troubleshoot this one?

Reboot the older kernel and run "debsums -s" would be my first step.

grant



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>Date: Wed, 26 Dec 2001 13:51:17 -0800
>To: bheadley@interaccess.com
>From: Christian Suder <csuder@cisco.com>
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] Re: XFree86 Question
>
>
>In case you still have the problem, if I remember correctly the reason >is 
>that the XFree config file is generated in a "PC-ish" manner with a >lot of 
>different screen definitions and tries to start X in a >combination the fb 
>device does not support. Edit it to have just an >entry for the type of 
>screen you have (likely 1280x1024, 8bit).
>
>	Christian

I was having the same problem on a B132L+.  This fix got me up and going.  
Thanx Christian!



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> Tom wrote:
> > Perhaps I spoke too soon about -pa24 being good. After compiling and
> > rebooting with -pa24, then an apt-get update/dist-upgrade, make no longer
> > works.
>
On Thu, 27 Dec 2001, Grant Grundler wrote:
> Could you check if make was replaced or one of it's libs?
> "debsums -s" would be another good thing to check.
> FWIW, make works fine for me with all the recent kernels (if they booted).

That's my guess too... 'make -d mrproper' gives:

Reading makefiles...
Reading makefile `Makefile'...
Got a SIGCHLD; 1 upreaped children.
Got a SIGCHLD; 1 upreaped children.
Got a SIGCHLD; 1 upreaped children.
Reading makefile `.config' (search path) (no ~ expansion)...
Reading makefile `.depend' (search path) (no ~ expansion)...
Reading makefile `arch/parisc/Makefile' (search path) (no ~ expansion)...
Got a SIGCHLD; 2 unreaped children
Trace/Breakpoint trap

...and back to prompt. Running again crashed the telnet session :-(  So,
ran with 'make -d mrproper > ~/make.err' a few times. Sometimes I get the
above text, sometimes it's just empty. 'make clean' or 'make oldconfig' do
the same thing...

'debsums -s' once again is clean, no errors. I'm thinking of waiting a
bit, re-running the apt-get dist-upgrade to catch things up, then see if
it fixes itself...

> Reboot the older kernel and run "debsums -s" would be my first step.

...although I'll probably do this, since I can't stand the idea of just
ignoring a problem :-)




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On Thu, 27 Dec 2001, Marco Rodriguez wrote:
> i want to upgrade the frimware of an HP 9000 D350 but the only patch i've
> found from ftp://us-ffs.external.hp.com/ is to older
[snip]
> anyone knows other place where i can download newest patches or this is
> realy the lastest patch available?

Also, is there a good page available on how to actually patch your
firmware? It appears there's a newer one than my C180 has, but I couldn't
locate a How-To on HP's site (although I confess to not having the time to
dig too deeply)...




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> 
> 
>> 
>> 
>> Hi Christian,
>> 
>> try the default config (remove your .config file and then run "make  
>> oldconfig").
>> It just booted here for me with -pa27, so I assume you may have 
>> forgotten the
>> CONFIG_GSC_WAX=y configuration entry
> 
No,

the entry is in the .config file. I'll try -pa27 later, there seem to be 
some issues with the -pa25 in general,

thanks,
   Christian

>> 




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Tom wrote:
> Also, is there a good page available on how to actually patch your
> firmware?

The firmware image is a shar file with a HOW-TO included.
Basic steps are to unpack, transfer the update lifimage
to bootable media (network, tape, disk) and boot it.

If you haven't, read the parisc-linux.org FAQ too. (It's short).

grant



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Christian Suder wrote:
> the entry is in the .config file. I'll try -pa27 later, there seem to be 
> some issues with the -pa25 in general,

Yes - I broke dino (PCI) support in -pa25 when I re-enabled c3000 machines.
I might have also broke EISA support but don't think so.
Thomas fixed that in -pa26 (or pa27?).
Go back to -pa24 or forward to the latest.
parisc-linux-cvs mail archives might tell you what you want to know.

grant



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This is a multipart MIME message.

--==_Exmh_-7787221390
Content-Type: text/plain; charset=us-ascii

As Grant says, its hard to debug this type of thing.  However, I do have a 
theory:  The free_irq() call in parisc doesn't do an irq shutdown (which 
disables the irq).  This looks like an omission, since I thought the 
behaviours of the arch irq.c's were all converging.  It is possible that an 
unhandled interrupt would cause the type of problem you describe

A simple test of the theory is to try the attached patch and see if that fixes 
the problem.  If that doesn't work, I'll try to reproduce (although this will 
take a while since I'll have to construct an NFS boot environment).

James




--==_Exmh_-7787221390
Content-Type: text/plain ; name="tmp.diff"; charset=us-ascii
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Index: drivers/scsi/lasi700.c
===================================================================
RCS file: /var/cvs/linux/drivers/scsi/lasi700.c,v
retrieving revision 1.5
diff -u -r1.5 lasi700.c
--- drivers/scsi/lasi700.c	2001/12/26 22:41:16	1.5
+++ drivers/scsi/lasi700.c	2001/12/27 20:20:59
@@ -195,6 +195,7 @@
 
 	NCR_700_release(host);
 	kfree(hostdata);
+	disable_irq(host->irq);
 	free_irq(host->irq, host);
 	release_mem_region(host->base, 64);
 	return 1;

--==_Exmh_-7787221390--





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From: H_Aue@t-online.de (Hinrich Aue)
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Subject: [parisc-linux] DSL on a 715/80 with rp-pppoe
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Hi there,

I tried to install rp-pppoe on my 715/80, and it worked until one point, when 
I try to start the pppd and the box crashes instantly.

There is a massive stackdump or so, and I don't know how to catch it up and 
submit it :-(

perhaps it's a ppp problem.

Another strange thing is, that I succsessfully load the ne Module for my 
ne2000 ISA Adapter in my  715/80, but there's also a stackdump:

//------------------------------------

ne.c:v1.10 9/23/94 Donald Becker (becker@scyld.com)
Last modified Nov 1, 2000 by Paul Gortmaker
NE*000 ethercard probe at 0x320: 00 00 1c 10 84 86
eth1: NE2000 found at 0x320, using IRQ 5.
break 0,0: pid=101 command='keventd'
keventd (pid 101): Breakpoint (code 0)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 102bb010 00000000 00000000
r04-07  00000000 00000000 00000000 00000000
r08-11  00000000 00000000 00000000 00000000
r12-15  00000000 00000000 00000001 101224d8
r16-19  1bb405c0 00000002 00000000 1061de40
r20-23  1061de40 1034aa00 1034a980 1061de40
r24-27  1061de50 00001000 00000000 1027e010
r28-31  00000000 00000000 1bb40780 1012de88
sr0-3   00000000 00000000 00000000 00000153
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 00000000 00000004
 IIR: 00000000    ISR: 00000000  IOR: 00000008
 CPU:        0   CR30: 1bb40000 CR31: 102f8000
 ORIG_R28: 00000000

//------------------------------------

Does anyone know what that means?
Any experiences?
Does anyone have a modem running on a parisc-box?

Hinrich.



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On Thu, Dec 27, 2001 at 12:59:30PM -0700, Grant Grundler wrote:
> Christian Suder wrote:
> > the entry is in the .config file. I'll try -pa27 later, there seem to be 
> > some issues with the -pa25 in general,
> 
> Yes - I broke dino (PCI) support in -pa25 when I re-enabled c3000 machines.
> I might have also broke EISA support but don't think so.

EISA is broken for ccio machines (ok, only checked on my C200), because
ccio requests memory space, which the eisa part wants too. I have it
"working" again, but the patch is definitly not for common use. The big
problem is, that ccio registers a primary and secondary memory space,
but ccio_find_parisc_resource() only gives back the resource for the
primary gsc space, which is the wrong one.

> Thomas fixed that in -pa26 (or pa27?).

-pa26

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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Recently I tried to boot a Linux box (in my case it was a i386, but
the problem also exists for a PA-RISC box) from an HP-UX server (model
9000/856, the E55 running 11.00). The problem was, I could not mount
a NFS-Root for the Linux box.

I analysed the problem, and it seems to be a problem with the MOUNT
version (not mixed up with NFS version). Linux uses for normal mounts
MOUNT v3, for NFS ROOT mounts MOUNT v1, which does not include UID and
GID for example. The NFS Server on the HP-UX machine reports in the
log (activated to debug level), that the mount request does not include
UID. So the mount is rejected (EACCES). So I was not able to boot a
linux box using NFS ROOT from an HP-UX server, but I can boot any Linux
box (PA-RISC, i386) from a i386-Linux box.

I hope, you can help here. I think the problem is also interesting for
others, using a HP-UX machine as NFS server instead a Linux machine.

Bye,
Christoph


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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From: Grant Grundler <grundler@dsl2.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] DSL on a 715/80 with rp-pppoe
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Hinrich Aue wrote:
> I tried to install rp-pppoe on my 715/80, and it worked until one point, when
> I try to start the pppd and the box crashes instantly.

I was running ppp over a regular 28.8Kbps dialup modem on the c3k.
Haven't tried it recently.
Can you tell me which kernel version (uname -a) you are using?
offhand, I'd suggesting trying the latest available from
	ftp://ftp.parisc-linux.org/kernels/32

grant



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Booting diskless Linux machine from HP-UX server !
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Christoph Plattner wrote:
> Recently I tried to boot a Linux box (in my case it was a i386, but
> the problem also exists for a PA-RISC box) from an HP-UX server (model
> 9000/856, the E55 running 11.00). The problem was, I could not mount
> a NFS-Root for the Linux box.

It was easier for me to abandon my HPUX NFS server a few years 
back than try to figure this out.

> I analysed the problem, and it seems to be a problem with the MOUNT
> version (not mixed up with NFS version). Linux uses for normal mounts
> MOUNT v3, for NFS ROOT mounts MOUNT v1, which does not include UID and
> GID for example. The NFS Server on the HP-UX machine reports in the
> log (activated to debug level), that the mount request does not include
> UID. So the mount is rejected (EACCES). So I was not able to boot a
> linux box using NFS ROOT from an HP-UX server, but I can boot any Linux
> box (PA-RISC, i386) from a i386-Linux box.

Once upon a time I had NFS root working with HPUX as my server.
Search mail archives in the 1999, early 2000 time frame.

Another basic problem is "mknod" on HPUX works differently than
it does for linux. You have to "cook" the mknod numbers to make them
look right to the parisc-linux client. Again, the parisc-linux mail
archives (soudn familiar? :^/) should be helpful here.

> I hope, you can help here. I think the problem is also interesting for
> others, using a HP-UX machine as NFS server instead a Linux machine.

We are trying to *replace* HPUX servers. ;^)
Obviously not for everything, but simple stuff like this...

grant



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From: H_Aue@t-online.de (Hinrich Aue)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: DSL on a 715/80 with rp-pppoe (Hinrich Aue)
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I use the 2.4.16-pa24 Kernel from CVS.
I'll try the latest CVS Version soon.
Perhaps I'll try a Modem too, to see if it's a pppd problem or so.



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From: "Justin Hamilton" <JHamilton@Earthling.Net>
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Subject: RE: [parisc-linux] Booting diskless Linux machine from HP-UX server !
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I worked on a project booting i386 based nfs-root Linux boxes off hpux
servers.

Under 10.20 if you boot the same client twice, with no other clients booting
during the mean whilst, it would get permission denied the 1st time, but be
successful the 2nd.

Under 11.00 it would get permission denied every time.

I had a ticket open with HP on this at one time, then we moved the nfsroot
over to AIX and our problem was solved so I never followed up on it.

Also had problems with TFTP & DHCP servers on 11.00. With multiple IP's
assigned to a lan interface, the server responds from the last ifconfig'd IP
(i.e. lan1:2) , but then listens for a reply on the primary IP (i.e. lan1)
while the client is trying to use lan1:2's IP.
I think we just found a similar problem with another server daemon also.
Don't know those details.

Just my $0.02

Justin

-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Grant
Grundler
Sent: Friday, December 28, 2001 1:04 AM
To: Christoph Plattner
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Booting diskless Linux machine from HP-UX
server !


Christoph Plattner wrote:
> Recently I tried to boot a Linux box (in my case it was a i386, but
> the problem also exists for a PA-RISC box) from an HP-UX server (model
> 9000/856, the E55 running 11.00). The problem was, I could not mount
> a NFS-Root for the Linux box.

It was easier for me to abandon my HPUX NFS server a few years
back than try to figure this out.

> I analysed the problem, and it seems to be a problem with the MOUNT
> version (not mixed up with NFS version). Linux uses for normal mounts
> MOUNT v3, for NFS ROOT mounts MOUNT v1, which does not include UID and
> GID for example. The NFS Server on the HP-UX machine reports in the
> log (activated to debug level), that the mount request does not include
> UID. So the mount is rejected (EACCES). So I was not able to boot a
> linux box using NFS ROOT from an HP-UX server, but I can boot any Linux
> box (PA-RISC, i386) from a i386-Linux box.

Once upon a time I had NFS root working with HPUX as my server.
Search mail archives in the 1999, early 2000 time frame.

Another basic problem is "mknod" on HPUX works differently than
it does for linux. You have to "cook" the mknod numbers to make them
look right to the parisc-linux client. Again, the parisc-linux mail
archives (soudn familiar? :^/) should be helpful here.

> I hope, you can help here. I think the problem is also interesting for
> others, using a HP-UX machine as NFS server instead a Linux machine.

We are trying to *replace* HPUX servers. ;^)
Obviously not for everything, but simple stuff like this...

grant

_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux





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From: Helge Deller <helge.deller@sap.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: rmmod lasi700 hangs the machine
Date: Fri, 28 Dec 2001 11:23:37 +0100
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To: James Bottomley <James.Bottomley@hansenpartnership.com>
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Hi James,

After adding the disable_irq(host->irq); to the lasi700 driver
the kernel no longer crashes, but the rmmod command now
hangs and doesn't return. The good thing is, that I now could
log in on anther terminal and get some (hopefully) useful info
for you:

All info below are taken after the "rmmod lasi700" command:

hw1306:d036493> lsmod
Module                  Size  Used by   
lasi700                 1908   0 (deleted)
53c700                 28396   0 [lasi700]

d036493@hw1306:/ > pstree -ap
init,1)
  |-atd,312)
  |-(keventd,2)
  |-(kjournald,7)
  |-..........
  |-(scsi_eh_1,402)     <- is this normal ??
  |-sshd,298)
  |   |-sshd,367)
  |   |   `-csh,368)
  |   |       `-bash,391)
  |   |           `-rmmod,404) lasi700


hw1306:~# strace rmmod lasi700
execve("/sbin/rmmod", ["rmmod", "lasi700"], [/* 14 vars */]) = 0
newuname({sys="Linux", node="hw1306", ...}) = 0
brk(0)                                  = 0x45000
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 34267, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40019000
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2?@"..., 1024) = 1024
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40022000
mmap(NULL, 1404268, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4002a000
mprotect(0x40164000, 118124, PROT_NONE) = 0
mmap(0x40173000, 45056, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x139000) = 0x40173000
mmap(0x4017e000, 11628, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4017e000
close(3)                                = 0
munmap(0x40019000, 34267)               = 0
query_module(NULL, 0, NULL, 0)          = 0
brk(0)                                  = 0x45000
brk(0x45120)                            = 0x45120
brk(0x46000)                            = 0x46000
query_module(NULL, QM_MODULES, { /* 6 entries */ }, 6) = 0
query_module("lasi700", QM_INFO, {address=0x870000, size=1908, flags=MOD_RUNNING, usecount=0}, 16) = 0
query_module("lasi700", QM_SYMBOLS, { /* 5 entries */ }, 5) = 0
query_module("53c700", QM_INFO, {address=0x868000, size=28396, flags=MOD_RUNNING|MOD_USED_ONCE, usecount=0}, 16) = 0
query_module("53c700", QM_SYMBOLS, { /* 7 entries */ }, 7) = 0
query_module("nfsd", QM_INFO, {address=0x854000, size=75216, flags=MOD_RUNNING|MOD_AUTOCLEAN|MOD_VISITED|MOD_USED_ONCE, usecount=8}, 16) = 0
query_module("nfsd", QM_SYMBOLS, { /* 4 entries */ }, 4) = 0
query_module("lockd", QM_INFO, {address=0x846000, size=51400, flags=MOD_RUNNING|MOD_AUTOCLEAN|MOD_VISITED|MOD_USED_ONCE, usecount=1}, 16) = 0
brk(0x47000)                            = 0x47000
query_module("lockd", QM_SYMBOLS, { /* 9 entries */ }, 9) = 0
query_module("sunrpc", QM_INFO, {address=0x834000, size=66284, flags=MOD_RUNNING|MOD_AUTOCLEAN|MOD_VISITED|MOD_USED_ONCE, usecount=1}, 16) = 0
query_module("sunrpc", QM_SYMBOLS, 0x46270, 1024, 1719) = -1 ENOSPC (No space left on device)
query_module("sunrpc", QM_SYMBOLS, { /* 68 entries */ }, 68) = 0
query_module("autofs", QM_INFO, {address=0x830000, size=11508, flags=MOD_RUNNING|MOD_AUTOCLEAN|MOD_VISITED|MOD_USED_ONCE, usecount=2}, 16) = 0
query_module("autofs", QM_SYMBOLS, { /* 22 entries */ }, 22) = 0
brk(0x4c000)                            = 0x4c000
query_module(NULL, QM_SYMBOLS, 0x46d40, 16384, 22587) = -1 ENOSPC (No space left on device)
brk(0x52000)                            = 0x52000
query_module(NULL, QM_SYMBOLS, { /* 984 entries */ }, 984) = 0
delete_module("lasi700"
<here it hangs>

Sadly I don't have a gdb here...

Helge


On Thursday 27 December 2001 21:23, James Bottomley wrote:
> As Grant says, its hard to debug this type of thing.  However, I do have a
> theory:  The free_irq() call in parisc doesn't do an irq shutdown (which
> disables the irq).  This looks like an omission, since I thought the
> behaviours of the arch irq.c's were all converging.  It is possible that an
> unhandled interrupt would cause the type of problem you describe
>
> A simple test of the theory is to try the attached patch and see if that
> fixes the problem.  If that doesn't work, I'll try to reproduce (although
> this will take a while since I'll have to construct an NFS boot
> environment).
>
> James



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I use the 2.4.16-pa24 Kernel from CVS.
I'll try the latest CVS Version soon.
Perhaps I'll try a Modem too, to see if it's a pppd
problem or so.

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Hallo,

I found out, that you (Grant Grundler) already had the
same? Problem. There already was a submitted Bug.
Has somebody tried to fix that?

My error output looks like the one discribed at:

http://bugs.parisc-linux.org/db/13/132.html

I'll post the stackdump later today, from syslog.


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From: Michael Madden <madden@cms-stl.com>
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Subject: [parisc-linux] PARISC-Linux 0.9.3 on a 735
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Hello;

I recently installed PARISC-Linux 0.9.3 on an older 735, and I'm having
a heck of time to get X configured.  I have a HIL keyboard and mouse,
but /usr/bin/X11/xf86config presents you with options for common
pc setups (PS2 mouse, ATI video card, etc).  Is there a better way
to setup X or is this even supported at this time?

Thanks,

Michael Madden
Systems Engineer
Computerized Medical Systems
madden@cms-stl.com






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I've downloaded the 0.9.3 image, and tried to install it on our K250. As
thge previous version, it doesn't boot. I have no log of the boot, as I had
no available box to connect to the serial line. I'll try once more in some
days to grab the dump log and mail it to you.

Cheers,
Rune Nordb=F8e Skillingstad
--=20
"I came out of it dead broke, without a house, without anything except a
girlfriend and a knowledge of Unix." "Well, that's something. Normally
those two are mutually exclusive"
 - Neal Stephenson, Cryptonomicon



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This is a multipart MIME message.

--==_Exmh_4174171510
Content-Type: text/plain; charset=us-ascii

After applying the kernel down_interruptible fix, the attached should be the 
final piece of the puzzle.  With it applied (and the previous disable_irq 
patch discarded), I can insert and remove the module to my heart's content.

James


--==_Exmh_4174171510
Content-Type: text/plain ; name="tmp.diff"; charset=us-ascii
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Content-Disposition: attachment; filename="tmp.diff"

Index: drivers/scsi/lasi700.c
===================================================================
RCS file: /var/cvs/linux/drivers/scsi/lasi700.c,v
retrieving revision 1.5
diff -u -r1.5 lasi700.c
--- drivers/scsi/lasi700.c	2001/12/26 22:41:16	1.5
+++ drivers/scsi/lasi700.c	2001/12/29 03:07:09
@@ -197,6 +197,7 @@
 	kfree(hostdata);
 	free_irq(host->irq, host);
 	release_mem_region(host->base, 64);
+	unregister_parisc_driver(&lasi700_driver);
 	return 1;
 }
 

--==_Exmh_4174171510--





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=?iso-8859-1?q?Hinrich=20Aue?= wrote:
> I found out, that you (Grant Grundler) already had the
> same? Problem. There already was a submitted Bug.
> Has somebody tried to fix that?

Either Richard Hirst or Thomas Bogendoerf already fixed that.
132 should be closed since last I tried, I was able to use pppd
with the dialup modem. Sorry about that - I should have closed it.


> I'll post the stackdump later today, from syslog.

The "trap 15" is a kernel crash. That doesn't get logged
to syslog (afaik). Are you sure it's the same symptom?

grant



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James Bottomley wrote:
> After applying the kernel down_interruptible fix, the attached should be the 
> final piece of the puzzle.  With it applied (and the previous disable_irq 
> patch discarded), I can insert and remove the module to my heart's content.

Committed both fixes as 2.4.16-pa29.

grant



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From: Christian Suder <csuder@cisco.com>
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Subject: [parisc-linux] Update on [Q] on EISA
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Ok,

I figured out my (self-inflicted) problems with X and newer kernel versions and I now have a -23 kernel running with an ISA NE1000 (in fact this email leaves via it). 

However with recent versions (-27, -28) no joy:
Dec 28 22:07:51 c110 kernel: Warning : device (11, 0x1e, 0x0, 0x90) NOT claimed by EISA Bus Adapter

and subsequent messages that the PCI or EISA device would not be registered when the driver tries to access it. 



On the Q how to get an EISA card going it turned out HP/UX has the necessary eisa_config utility. Unfortunately there is no equivalent Linux utility (yet...) as the other EISA platforms (i386 and alpha) can be configured by booting from diskette.


	Christian 



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From: Christian Suder <csuder@cisco.com>
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Subject: [parisc-linux] Problem with threads..
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Hello,

the pan newsreader does not want to work on parisc platforms (neither the ones from the debian archive nor a version compiled from scratch). Digging a little bit I found the application hangs at pthread_mutex_lock and similar calls. Tried with various kernel versions over the last couple of months, never worked. Known issue ?

Thanks,
	Christian 



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From: H_Aue@t-online.de (Hinrich Aue)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] DSL on a 715/80 with rp-pppoe
Date: Sat, 29 Dec 2001 13:23:44 +0100
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To: Grant Grundler <grundler@dsl2.external.hp.com>
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Am Samstag, 29. Dezember 2001 06:01 schrieben Sie:
> =?iso-8859-1?q?Hinrich=20Aue?= wrote:
> > I found out, that you (Grant Grundler) already had the
> > same? Problem. There already was a submitted Bug.
> > Has somebody tried to fix that?
>
> Either Richard Hirst or Thomas Bogendoerf already fixed that.
> 132 should be closed since last I tried, I was able to use pppd
> with the dialup modem. Sorry about that - I should have closed it.
>
> > I'll post the stackdump later today, from syslog.
>
> The "trap 15" is a kernel crash. That doesn't get logged
> to syslog (afaik). Are you sure it's the same symptom?
>
> grant

Yes, I found no logging in syslog. I'm not used to kernel stuff, (2. 
semester) but the stackdump looked familiar. And after all, it happens when I 
start pppd with async ppp. If I don't activate async ppp It don't crashes, 
but it don't work. That was a problem first when I tried to use DSL. After I 
activated async ppp the machine crashes at the start of pppd.
I also tried the latest CVS kernel Verison (pa27).
I would like to dig in that stuff, but I don't know where to start and have 
too little experience.





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From: andi <andi@fischlustig.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problem with threads..
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On Sat, 2001-12-29 at 10:24, Christian Suder wrote:
> Hello,
> 
> the pan newsreader does not want to work on parisc platforms (neither the ones from the debian archive nor a version compiled from scratch). Digging a little bit I found the application hangs at pthread_mutex_lock and similar calls. Tried with various kernel versions over the last couple of months, never worked. Known issue ?

I can confirm the problem here on my 712/60. DirectFB (www.directfb.org)
does not work either and hangs during first pthread_mutex_lock().

andi








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From: H_Aue@t-online.de (Hinrich Aue)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] DSL on a 715/80 with rp-pppoe
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I read another posting, that pppd misses the /sbin/hotplug script.
First I made a script like discribed in the posting, after that I installed 
the hotplug package, both versions had the same problem.

if I do pppd call dsl-privider:
//---------------------------------------
Serial connection established.
using channel 2
Using interface ppp0
Connect: ppp0 <--> /dev/pts/1
read: Resource temporarily unavailable
read /dev/ppp: Resource temporarily unavailable
read: Resource temporarily unavailable
read /dev/ppp: Resource temporarily unavailable
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x7c5d0821>]
read: Resource temporarily unavailable
read /dev/ppp: Resource temporarily unavailable
rcvd [LCP ConfReq id=0x66 <mru 1492> <auth pap> <magic 0x3ddff70f>]
sent [LCP ConfRej id=0x66 <auth pap>]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x7c5d0821>]
rcvd [LCP ConfReq id=0x67 <mru 1492> <magic 0x3ddff70f>]
sent [LCP ConfAck id=0x67 <mru 1492> <magic 0x3ddff70f>]
sent [LCP EchoReq id=0x0 magic=0x7c5d0821]
kernel does not support PPP filtering
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [LCP TermReq id=0x68]
LCP terminated by peer
sent [LCP TermAck id=0x68]
Script pppoe -I eth1 finished (pid 297), status = 0x0
Modem hangup
Connection terminated.
//---------------------------------------

It seems strange to me, that the missing hotplug script causes the trap 15.
As I see, there some send and reciieve things done like <auth pap> and stuff.

Q:
Does anybody know why:
"read /dev/ppp: Resource temporarily unavailable"
and
"kernel does not support PPP filtering" ?
What the hell is PPP filtering? Do I have to activate it in the Kernel?
I think that "read /dev/ppp: Resource temporarily unavailable" Is not the 
Problem, perhaps it takes time to init or stuff, but after a while it seems 
to be available, because some messages are recieved and sent.



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From: "Craig D. Lansing" <lansing@beldar.com>
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This is a multi-part message in MIME format.

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I just got around to bringing in the J2240 from the garage to connect it =
to the LAN.  Unfortunately, the upgrade to 0.9.3 via iso image seems to =
have rendered the NIC unusable (or did I render the NIC unusable when =
moving the box w/o help?).  Below is the output from boot:

Linux Tulip driver version 0.9.15-pre6 (July 2, 2001)

tulip0: EEPROM default media type Autosense.

tulip0: Index #0 - Media MII (#11) described by a 21142 MII PHY (3) =
block.

tulip0: ***WARNING***: No MII transceiver found!

eth0: Digital DS21143 Tulip rev 33 at 0xfe00, 00:60:B0:B2:FC:F5, IRQ 99.

tulip1: no phy info, aborting mtable build

tulip1: MII transceiver #1 config 1000 status 7809 advertising 01e1.

eth1: Digital DS21143 Tulip rev 48 at 0x1ff00, 00:60:B0:A4:F3:F1, IRQ =
160.

SCSI subsystem driver Revision: 1.00








------=_NextPart_000_00F3_01C19052.C3CE9BE0
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2614.3500" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>I just got around to bringing in the =
J2240 from the=20
garage to connect it to the LAN.&nbsp; Unfortunately, the upgrade to =
0.9.3 via=20
iso image seems to have rendered the NIC unusable (or did I render the =
NIC=20
unusable when moving the box w/o help?).&nbsp; Below is the output from=20
boot:</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3Dr_ansi size=3D2>
<P>Linux Tulip driver version 0.9.15-pre6 (July 2, 2001)</P>
<P>tulip0: EEPROM default media type Autosense.</P>
<P>tulip0: Index #0 - Media MII (#11) described by a 21142 MII PHY (3)=20
block.</P>
<P>tulip0: ***WARNING***: No MII transceiver found!</P>
<P>eth0: Digital DS21143 Tulip rev 33 at 0xfe00, 00:60:B0:B2:FC:F5, IRQ =
99.</P>
<P>tulip1: no phy info, aborting mtable build</P>
<P>tulip1: MII transceiver #1 config 1000 status 7809 advertising =
01e1.</P>
<P>eth1: Digital DS21143 Tulip rev 48 at 0x1ff00, 00:60:B0:A4:F3:F1, IRQ =

160.</P>
<P>SCSI subsystem driver Revision: 1.00</P></FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

------=_NextPart_000_00F3_01C19052.C3CE9BE0--




From - Thu Nov 08 21:20:59 2018
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From: Jochen Friedrich <jochen@scram.de>
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Subject: Re: [parisc-linux] DSL on a 715/80 with rp-pppoe
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Hi Hinrich,

> rcvd [LCP ConfReq id=0x66 <mru 1492> <auth pap> <magic 0x3ddff70f>]
> sent [LCP ConfRej id=0x66 <auth pap>]

You reject to identify yourself. Is your userid / password setup 
correctly in /etc/ppp/pap-secrets?

Cheers,
Jochen




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Hi Hinrich,

> rcvd [LCP ConfReq id=0x66 <mru 1492> <auth pap> <magic 0x3ddff70f>]
> sent [LCP ConfRej id=0x66 <auth pap>]

I guess you use T-Online (TDSL flatrate?). In this case make sure you 
place the userid in /etc/ppp/pap-secrets in single quotes or the # will be 
treated as a start of comment:

'AAAAAAAAAAAATTTTTTTTTTTT#0001@t-online.de'     *       PPPPPPP        *

Of course you must replace the A, T and P with the data you got from 
t-online.

Cheers,
Jochen




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Subject: Re: [parisc-linux] DSL on a 715/80 with rp-pppoe
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> Q:
> Does anybody know why:
> "read /dev/ppp: Resource temporarily unavailable"
> and
> "kernel does not support PPP filtering" ?
> What the hell is PPP filtering? Do I have to activate it in the Kernel?

Just a suggestion: Networking Options -> Socket Filtering (CONFIG_FILTER).
This is not enabled by default.

Helge



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---1463811328-658511863-1009643430=:17057
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I have a 712/80 which blows up when trying to use ppp with pptp.

I have grabbed the stack trace I get from my system blowing up but have
not managed to get ksymoops to interpret it at all. I have attached the
stack trace in case anyone can make any sense of it.

Does anyone have any ideas what else I could try?

# uname -a
Linux ducati 2.4.16-32 #1 Fri Dec 7 15:47:09 MST 2001 parisc unknown

various package versions (including depends).......

kernel-image-2.4.16-32	16.1    	(2.4.16-pa16 AFAIK)
ppp			2.4.1.uus-1	(also breaks with -3)
libc6			2.2.4-7
libpam0g		0.72-34
libpcap0		0.6.2-2
libpam-modules		0.72-34
netbase			4.07
procps			2.0.7-8


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] DSL on a 715/80 with rp-pppoe
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IIRC, when I first got ppp working on hppa, it would only work if
I created a dummy /sbin/hotplug, see

<http://lists.parisc-linux.org/hypermail/parisc-linux/6527.html>

Richard


On Thu, Dec 27, 2001 at 10:47:22PM -0700, Grant Grundler wrote:
> Hinrich Aue wrote:
> > I tried to install rp-pppoe on my 715/80, and it worked until one point, when
> > I try to start the pppd and the box crashes instantly.
> 
> I was running ppp over a regular 28.8Kbps dialup modem on the c3k.
> Haven't tried it recently.
> Can you tell me which kernel version (uname -a) you are using?
> offhand, I'd suggesting trying the latest available from
> 	ftp://ftp.parisc-linux.org/kernels/32
> 
> grant
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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Subject: Re: [parisc-linux] PARISC-Linux 0.9.3 on a 735
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On Fri, Dec 28, 2001 at 10:23:10AM -0600, Michael Madden wrote:
> Hello;
> 
> I recently installed PARISC-Linux 0.9.3 on an older 735, and I'm having
> a heck of time to get X configured.  I have a HIL keyboard and mouse,
> but /usr/bin/X11/xf86config presents you with options for common
> pc setups (PS2 mouse, ATI video card, etc).  Is there a better way
> to setup X or is this even supported at this time?

Have you followed the advice in

<http://www.parisc-linux.org/release-0.9/errata-093.html>

Richard




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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] DSL on a 715/80 with rp-pppoe
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Hinrich Aue wrote:
> Yes, I found no logging in syslog. I'm not used to kernel stuff, (2. 
> semester) but the stackdump looked familiar. And after all, it happens when I
> start pppd with async ppp. If I don't activate async ppp It don't crashes, 
> but it don't work.  That was a problem first when I tried to use DSL. After I 
> activated async ppp the machine crashes at the start of pppd.

Ok. That sounds similar.

> I also tried the latest CVS kernel Verison (pa27).
> I would like to dig in that stuff, but I don't know where to start and have 
> too little experience.

There must be some kernel beginners guid some place...perhaps this
is the start of one for parisc:
1) collect console output from a serial console. Or type in by hand
   panic/crash reason, GR02, IOAQ, and IIR registers for starters.
   Note machine model, PDC firmware rev too.

2) get "a.c" and "astk" from CVS
	http://cvs.parisc-linux.org/~checkout~/build-tools/

3) use "a" to lookup up symbols names in your matching System.map.
   Feed the stack dump to "astk" to get a rough idea of what was
   on the stack. parisc stack grows upward - higher addresses are the
   "top" of the stack - some of the addresses are residual junk.
   Look at the source code to see which functions are really being called.

4) keep notes!
   which kernel versionso, which symtoms, local changes you've made.

5) search the parisc-linux mail archive for "stack dump" or "trap 15"
   (or whatever the panic output is or kernel symbols associated
   with it).

6) post questions to parisc-linux when you get stuck.

hth,
grant



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Richard Hirst wrote:

> On Fri, Dec 28, 2001 at 10:23:10AM -0600, Michael Madden wrote:
> 
>>Hello;
>>
>>I recently installed PARISC-Linux 0.9.3 on an older 735, and I'm having
>>a heck of time to get X configured.  I have a HIL keyboard and mouse,
>>but /usr/bin/X11/xf86config presents you with options for common
>>pc setups (PS2 mouse, ATI video card, etc).  Is there a better way
>>to setup X or is this even supported at this time?
>>
> 
> Have you followed the advice in
> 
> <http://www.parisc-linux.org/release-0.9/errata-093.html>
> 


Probably should ammend the release doc to suggest running fbset -i (as 
root) is useful to get the resolution information as well...





-- 
____               .:.                 ____
Bryan W. Headley - bheadley@interaccess.com




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I've got a 9000/755, happily running HPUX on it's FW drive, and I
finally found a SN drive for linux.  My question is twofold, how can I
identify the graphics subsystem(seperate board) and where is a list of
supported graphics cards?
Aaron
-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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Until I restarted ppp on my 712 it had been working perfectly for nearly
three months with no /sbin/hotplug.

Unfortunately I am a sad unstable addict (I have been since pre-buzz days
on i386) and have updated many times since ppp was last restarted.

This one I find weird because I know that it has worked but broke sometime
recently. The only reason I restarted the system was to finally upgrade to
the 2.4.16 kernel I have been happily running on a C160 and a collection
of C110s.

PeteM

On Sat, 29 Dec 2001, Richard Hirst wrote:

> IIRC, when I first got ppp working on hppa, it would only work if
> I created a dummy /sbin/hotplug, see
>
> <http://lists.parisc-linux.org/hypermail/parisc-linux/6527.html>
>
> Richard
>
[snip]




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> the pan newsreader does not want to work on parisc platforms (neither the ones from the debian archive nor a version compiled from scratch). Digging a little bit I found the application hangs at pthread_mutex_lock and similar calls. Tried with various kernel versions over the last couple of months, never worked. Known issue ?
> 

fwiw, what i've seen elsewhere is that on palinux, you have to make sure
the mutex is initialized before locking works. on other platforms
sometimes you can get away with doing a lock without a mutex init.

for another example see http://bugs.debian.org/124307

randolph
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On Sat, 29 Dec 2001 22:44:47 -0800
"Randolph Chung" <randolph@tausq.org> wrote:

> > the pan newsreader does not want to work on parisc platforms (neither
the ones from the debian archive nor a version compiled from scratch).
Digging a little bit I found the application hangs at pthread_mutex_lock
and similar calls. Tried with various kernel versions over the last couple
of months, never worked. Known issue ?> > 
> 
> fwiw, what i've seen elsewhere is that on palinux, you have to make sure
> the mutex is initialized before locking works. on other platforms
> sometimes you can get away with doing a lock without a mutex init.

Yes !!! There was one of 4 mutex not initialized, added that one and now
it works.

Many thanks,

	Christian 






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> > fwiw, what i've seen elsewhere is that on palinux, you have to make sure
> > the mutex is initialized before locking works. on other platforms
> > sometimes you can get away with doing a lock without a mutex init.
> 
> Yes !!! There was one of 4 mutex not initialized, added that one and now
> it works.

Please follow the instructions at http://www.debian.org/Bugs/Reporting
and file a bug, and let the maintainer know what you changed to get pan
to work.

thanks!
randolph
-- 
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From: H_Aue@t-online.de (Hinrich Aue)
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Am Samstag, 29. Dezember 2001 17:08 schrieben Sie:
> Hi Hinrich,
>
> > rcvd [LCP ConfReq id=0x66 <mru 1492> <auth pap> <magic 0x3ddff70f>]
> > sent [LCP ConfRej id=0x66 <auth pap>]
>
> I guess you use T-Online (TDSL flatrate?). In this case make sure you
> place the userid in /etc/ppp/pap-secrets in single quotes or the # will be
> treated as a start of comment:
>
> 'AAAAAAAAAAAATTTTTTTTTTTT#0001@t-online.de'     *       PPPPPPP        *
>
> Of course you must replace the A, T and P with the data you got from
> t-online.
>
> Cheers,
> Jochen

I have tried the syntax you told me, but, I still reject to <auth pap>.
This is strange, couse I think that I reject to auth myself.
"sent [LCP ConfRej id=0x66 <auth pap>]"
 So this must be a config Problem. Do I have to put something else into my 
pap-secrets?
I don't think that auth fails, but somethings wrong with my pap-secrets.





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	charset="iso-8859-1"
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In an attempt to solve my J2240 STI and Eth0/1 problems I am trying to =
upgrade the kernel from the 2.4.9-32 on the 0.9.3 ISO to something more =
recent.  Specifically, I've tried 32-2.4.16-pa24 and pa29.  I ftp'd the =
tar files from the 32-bit directory, untarred / unzipped the contents, =
copied them into /boot, changed the link for vmlinux, and modified =
/etc/palo.conf.  However, in both cases when I boot, everything =
initially looks like it will boot OK, but I eventually get a stack =
pointer error, a long hex dump, and finally "Kernel Fault: Code=3D15 =
regs=3D102af4c0 (Addr=3D00368004)" ....  This all appears on the STI =
head, even though I changed console to ttyS0, and scrolls by too fast to =
get much meaningful info prior to the hex dump. =20

Do I have to upgrade from source (which I'll try next) or am I doing =
something wrong or both?



------=_NextPart_000_0019_01C19113.FAC364C0
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2614.3500" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>In an attempt to solve my J2240 STI =
and&nbsp;Eth0/1=20
problems I am trying to upgrade the kernel from the 2.4.9-32 on the =
0.9.3 ISO to=20
something more recent.&nbsp; Specifically, I've tried 32-2.4.16-pa24 and =

pa29.&nbsp; I ftp'd the tar files from the 32-bit directory, untarred / =
unzipped=20
the contents, copied them into /boot, changed the link for vmlinux, and =
modified=20
/etc/palo.conf.&nbsp; However, in both cases when I boot, everything =
initially=20
looks like it will boot OK, but I eventually get a stack pointer error, =
a long=20
hex dump, and finally "Kernel Fault: Code=3D15 regs=3D102af4c0 =
(Addr=3D00368004)"=20
....&nbsp; This all appears on the STI head, even though I changed =
console to=20
ttyS0, and scrolls by too fast to get much meaningful info prior to the =
hex=20
dump.&nbsp; </FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Do I have to upgrade from source (which =
I'll try=20
next) or am I doing something wrong or both?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Palo and initial ramdisks
Date: Sun, 30 Dec 2001 09:45:53 -0600
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Playing some more with modules and initial ramdisks, I noticed that palo only 
allows use of a ramdisk when the ramdisk is placed inside the palo partition 
rather than being able to read one from the boot ext2 filesystem.

The attached patch is a simple hack allowing palo to read a ramdisk from the 
boot ext2 filesystem.

James Bottomley


--==_Exmh_-12732282180
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Index: ipl/bootloader.h
===================================================================
RCS file: /var/cvs/palo/ipl/bootloader.h,v
retrieving revision 1.9
diff -u -r1.9 bootloader.h
--- ipl/bootloader.h	2001/11/19 03:54:42	1.9
+++ ipl/bootloader.h	2001/12/30 15:32:01
@@ -57,6 +57,7 @@
 /* ext2.c */
 int ext2_mount(long cons_dev, long p_offset, long quiet);
 int ext2_open(const char *filename);
+int ext2_filesize(int fd);
 
 /* lib.c */
 void blockprint(int zero_offset, char *buf, int nbytes);
Index: ipl/ext2.c
===================================================================
RCS file: /var/cvs/palo/ipl/ext2.c,v
retrieving revision 1.9
diff -u -r1.9 ext2.c
--- ipl/ext2.c	2001/11/19 03:54:42	1.9
+++ ipl/ext2.c	2001/12/30 15:32:15
@@ -733,6 +733,13 @@
 }
 #endif
 
+int ext2_filesize(int fd)
+{
+	struct ext2_inode * ip = fd2inode[fd];
+
+	return ip->i_size;
+}
+
 #if 0
 static int ext2_fstat(int fd, struct stat* buf)
 {
Index: ipl/ipl.c
===================================================================
RCS file: /var/cvs/palo/ipl/ipl.c,v
retrieving revision 1.26
diff -u -r1.26 ipl.c
--- ipl/ipl.c	2001/11/19 03:54:42	1.26
+++ ipl/ipl.c	2001/12/30 15:32:22
@@ -471,6 +471,7 @@
     {
 	int kern_fd;
 	int bkern_fd;
+	int rd_fd, brd_fd;
 	int part_fd;
 	int mount_fd;
 	struct diskpartition *pp;
@@ -502,6 +503,21 @@
 	if (!load_kernel(bkern_fd, &entry, &wide))
 	{
 	    die("ERROR: failed to load kernel\n");
+	}
+
+	if (rd_part != -1)
+	{
+	    rd_fd = ext2_open(rd_name);
+	    if(rd_fd >= 0) {
+		brd_fd = byteio_open(rd_fd);
+
+		if (!load_rd(brd_fd, ext2_filesize(rd_fd)))
+		{
+		    printf("ERROR: failed to load ramdisk - proceeding anyway\n");
+		}
+	    } else {
+		printf("ERROR: failed to open ramdisk %s\n", rd_name);
+	    }
 	}
     }
 

--==_Exmh_-12732282180--





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From: Tom <palinux@alaskatech.org>
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Subject: [parisc-linux] Tape boot errors and NFS-Root-Howto?
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So I'm trying to update the firmware on my C180. Have no way to dump the
patch file to CD, but I've got a Debian box with a DAT on it, plus a spare
DAT drive. Install spare in C180, dd the .frm file onto the tape
(remembering to use 'bs=2k' like the doc says), it sees the tape and
refuses to boot, saying 'bad ipl checksum'. Clean tape drives, try a
different tape, try writing it with a different drive, all of which fail.

Decide to pull up the NFS-Root-Howto at Grant's suggestion, just boot the
patch file off the network. Unfortunately, p.e.h.c appears to be down :-(

Questions: Does anyone know if I'm doing the tape creation right? I did
'unshar PF_CC2X0061' (to get the .frm and .text files), then 'dd
if=CC2X0061.frm of=/dev/st1 bs=2k' (which writes 790 records without
error). The unshar says the .frm is compressed data - is this something
that needs further unpacking before writing, perhaps? Also, does anyone
have a local copy of the NFS-Root-Howto that they can point me to? The
only ones I can find are ~1999 and quite out of date...

Thanks!




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Maybe I'm missing somethign here... I set up a serial console on the C180,
which works great at 9600. Want to speed it up, so I changed the settings
to rs232_1.38400.n.8 (or whatever the exact syntax is - the PDC is happy
with it). Power-cycle, reset terminal to 38400 and nothing. Reset terminal
to 9600 and there's the screen... Doesn't seem to matter what I set the
console speed to in the PDC - it always runs at 9600. Is there some way I
have to "push" this, or otherwise save it?




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> > fwiw, what i've seen elsewhere is that on palinux, you have to make sure
> > the mutex is initialized before locking works. on other platforms
> > sometimes you can get away with doing a lock without a mutex init.
> 
> Yes !!! There was one of 4 mutex not initialized, added that one and now
> it works.

Just to clarify...

hppa is the only platform supported by linuxthreads right now where we 
initialize the mutex variable to 1 so that we can do locking using ldcw. On 
other platforms, locks are initialized to 0 and locking is done using things 
like test-and-set.

In general, you always need to call pthread_mutex_init for mutexes to
work. In the case of pan, the mutex variable is declared static, so it
is automatically initialized to 0.

randolph
-- 
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  (----)
 ( >__< )
 ^^ ~~ ^^



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> Kernel source. ./arch/parisc/kernel/hardware.c
> 
> The kernel supports display adapters that are supported by the pdc BIOS. 
> I assume it's an HP card, which means HPUX supports it, which strongly 
> infers it's supported by pdc BIOS.
> 
> What I don't know is, if you get something like an nVidia card, stick it 
> into the EISA bus, that such will work...
> 
> -- 
> ____               .:.                 ____
> Bryan W. Headley - bheadley@interaccess.com
it's an HP card, not in the EISA slots, but in the big slots on the
backplane.  Is there anything like lspci, but for the HP slots?
Aaron

-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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> Decide to pull up the NFS-Root-Howto at Grant's suggestion, just boot the
> patch file off the network. Unfortunately, p.e.h.c appears to be down :-(

p.e.h.c was replaced quite a while ago with parisc-linux.org,
cvs.parisc-linux.org, ftp.p.o, lists.p.o, bugs.p.o, etc...
Hopefully the NFS-Root-Howto is on parisc-linux.org now so you might
try wandering thorough there.  If the pointer is stale you might
try s/puffin.external.hp.com/parisc-linux.org

	-P



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On Dec 18 puffin.external.hp.com was removed from service because
it had been compromised.  We knew this was possible (RH 5.2) which
is why we moved all services off of puffin.

Baddies definitely have the password file, so if you used the
same password on puffin as elsewhere you should probably change it,
and especially if 'crack' can guess it.

Baddies also trojaned ssh, so if you used ssh *from* pehc *to* another
machine, whatever credentials you used may have been stolen -- whether
that's the password to the remote machine or the pass phrase to your
secret key stored on pehc.  So if you ssh-ed *from* pehc you should
change the credentials you used.  Those of you whose ssh credentials
were recorded in the trojan's "jackpot" file have long since been
contacted and you've taken action -- you have haven't you?!

It would be a good idea to check for evidence of intrusion on
any machines where stolen credentials could be used.

If you need to recover some of your files from pehc please contact
me with the specifics, or taggart@fc.hp.com from Jan 4-18.

	-P



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Tom writes...

> Maybe I'm missing somethign here... I set up a serial console on the C180,
> which works great at 9600. Want to speed it up, so I changed the settings
> to rs232_1.38400.n.8 (or whatever the exact syntax is - the PDC is happy
> with it). Power-cycle, reset terminal to 38400 and nothing. Reset terminal
> to 9600 and there's the screen... Doesn't seem to matter what I set the
> console speed to in the PDC - it always runs at 9600. Is there some way I
> have to "push" this, or otherwise save it?

Are you saying that the firmware doesn't display properly or the Linux
console?

If its the firmware my only advice is to try several different settings and
see if you can get anything other than 9600 to work. If you can then you
can try turning it up.

If you're referring to the Linux console, you'll need to edit the serial
terminal lines(they start with "T") in /etc/inittab and change the speed
there to match firmware.

HTH,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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> I know of no standalone tools, but /var/log/messages lists all hardware 
> the kernel recognizes during bootup.
> 
> -- 
> ____               .:.                 ____
> Bryan W. Headley - bheadley@interaccess.com
still running HPUX, so no boot log.  I'm trying to figure if I need a
terminal to install Linux, or can use the graphics system.  ioscan
> didn't give any useful indformation either
Aaron

-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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> Just to clarify...
> 
> hppa is the only platform supported by linuxthreads right now where we 
> initialize the mutex variable to 1 so that we can do locking using ldcw. On 
> other platforms, locks are initialized to 0 and locking is done using things 
> like test-and-set.
> 
> In general, you always need to call pthread_mutex_init for mutexes to
> work. In the case of pan, the mutex variable is declared static, so it
> is automatically initialized to 0.

does that mean using the PTHREAD_MUTEX_INITIALIZER as defined in
phread.h (which DirectFB does) does not work on parisc, and we _have_ to
call pthreas_mutex_init()? Why does PTHREAD_MUTEX_INITIALIZER exist
then?


#define PTHREAD_MUTEX_INITIALIZER \
  {0, 0, 0, PTHREAD_MUTEX_TIMED_NP, __LOCK_INITIALIZER}

andi





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> > Tom writes...
> > Maybe I'm missing somethign here... I set up a serial console on the C180,
> > which works great at 9600. Want to speed it up, so I changed the settings
> > to rs232_1.38400.n.8 (or whatever the exact syntax is - the PDC is happy
> > with it). Power-cycle, reset terminal to 38400 and nothing. Reset terminal
> > to 9600 and there's the screen... Doesn't seem to matter what I set the
> > console speed to in the PDC - it always runs at 9600. Is there some way I
> > have to "push" this, or otherwise save it?
>
> Matt:
> Are you saying that the firmware doesn't display properly or the Linux
> console?
>
> If its the firmware my only advice is to try several different settings and
> see if you can get anything other than 9600 to work. If you can then you
> can try turning it up.
>
> If you're referring to the Linux console, you'll need to edit the serial
> terminal lines(they start with "T") in /etc/inittab and change the speed
> there to match firmware.

Whoops - me bad. Should have been a bit more specific... This is the HP
PDC console settings I'm talking about, not the Linux console. I set it to
serial_1.19200.8.none and it happily stays at 9600. I thought that perhaps
it was auto-detecting the terminal speed and resetting itself, but if I
set it that way, then reset the terminal to 19.2 it won't see any display
until I reset it to 9600...

It's not critical to increase it, but when it's needed 9600 sure is slow
:-)




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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] Serial console settings?
Date: Mon, 31 Dec 2001 00:50:28 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:13533

.. Further the serial console speed has to be set, if Linux does
not use the PDC console (new feature for E55 and other machines with
proprietary hardware). The speed setting is done via kernel command
line parameter like

	console=ttyS0,38400

For more details at this point see under
linux/Documentation/serial-console.txt

Bye
Christoph P.


Matt Taggart wrote:
> 
> Tom writes...
> 
> > Maybe I'm missing somethign here... I set up a serial console on the C180,
> > which works great at 9600. Want to speed it up, so I changed the settings
> > to rs232_1.38400.n.8 (or whatever the exact syntax is - the PDC is happy
> > with it). Power-cycle, reset terminal to 38400 and nothing. Reset terminal
> > to 9600 and there's the screen... Doesn't seem to matter what I set the
> > console speed to in the PDC - it always runs at 9600. Is there some way I
> > have to "push" this, or otherwise save it?
> 
> Are you saying that the firmware doesn't display properly or the Linux
> console?
> 
> If its the firmware my only advice is to try several different settings and
> see if you can get anything other than 9600 to work. If you can then you
> can try turning it up.
> 
> If you're referring to the Linux console, you'll need to edit the serial
> terminal lines(they start with "T") in /etc/inittab and change the speed
> there to match firmware.
> 
> HTH,
> 
> --
> Matt Taggart        Linux Development Lab
> taggart@fc.hp.com   HP Linux Systems Operation
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Subject: [parisc-linux] 0.9.3 Installatio hangs on HP9000/730
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Hi

I tried to install debian-0.9.3 on a
HP9000/730 (32MB RAM, 535MB HD), thus overwriting an
older version (nfsroot-based).

I used the STI (HIL-Keyboard) and everything worked fine
until it tried to  make an ext2 filesystem. To be more
specific, I partitioned t/dev/sda (swap, F0 boot, ext2,
in that order) and tthe creation and activation of
the swap partition went fine. The computer seems to hang
whhile creating the ext2 filesystem. The last thing I can see is
somethingg like "Writing Inode xy/53" (with xy being a number
less than 53). xy starts from zero and stopps at a random number
(I tried to install debian-0.9.3 several times, xy is different each time)

I can use CTRL-ALT-DEL in order to shut down the system
(sometimes I seee a message from linux "Shutting down ..."
so it seems that the kernel didn't crash, but I can#t interrupt
the installation in any other way.

I don't think that that the creation of the ext2 takes such a long time
(I waited for half an hour) without uptatiing the progress bar.


STI and keyboard worked fine (last version of parisc linux
was over 9 month old and broken at that time) and it seemed
that everything  would work flawlessly.

AFAIK the 730 is very similar to the 720, just with additional WAX
(1 EISA slot) and a faster CPU (same type as in the 720)

Since someone posted successful installation on several 720's
and since the old linux installation worked with the saame hardware,
I doubt that it is a hardware problem.

Any clue ? Thanks in advance!


greetings max


PS: sorry for the many typos, but i have an awfully slow internet connection,
i.e. weaitiong 5 seconds before I can see what I typed.






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> does that mean using the PTHREAD_MUTEX_INITIALIZER as defined in
> phread.h (which DirectFB does) does not work on parisc, and we _have_ to
> call pthreas_mutex_init()? Why does PTHREAD_MUTEX_INITIALIZER exist
> then?

that works too.... 

randolph
-- 
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  (----)
 ( >__< )
 ^^ ~~ ^^



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CANON FAX (ON PAGE 9)

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LASERCLASS 5000,6000,7000 (FX2)-----------------$54
LASERFAX 5000,7000 (FX2)------------------------$54
LASERFAX 8500,9000 (FX4)------------------------$54

CANON COPIERS (PAGE 10)

PC 3, 6RE, 7 AND 11 (A30)---------------------$69
PC 300,320,700,720,760,900,910,920(E-40)------$89


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LASER WRITER 12/640-----------------------------$79

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LASERCLASS 4000 (FX3)---------------------------$59
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Hi,

Trying to install 9.3 on a c180 and :-

When starting X I get the message:

Couldn't open default PEX font file  Roman_M

How can I get rid of  this error OR can somebody give me a working
XF86Config file??

John Miles 



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"Craig D. Lansing" wrote:
> Did you ever get this resolved? 

Well, for the systems I can test (A500/C3000), yes.
IIRC, Thomas Bogendoerf said he fixed it for B132 and C200.

> I saw Tom's reply that it could be related to /boot extending beyond 2GB,

In general yes. But given recent kernel changes around PCI/EISA HBA numbering
I'd say it's a kernel problem.

> J2240, I have tried 32-2.4.16-pa24 and pa29 and am getting stack dumps
> similar to yours.  I have tried the pre-compiled kernels and creating from
> source to no avail.  The general steps are:
> 
> 1. Download kernel or kernel source
> 2. Compile if from source
> 3. Copy vmlinux***, System.map.***, and Config.*** to /boot
> 4. Link vmlinux to vmlinux***
> 5. Edit /etc/palo.conf
> 6. run palo (no args)

You don't need to run palo again. It doesn't hurt either.
Just point /boot/vmlinux (or whatever palo.conf says) to the new kernel.

Just a few more nits interesting to other kernel developers.
I hope Ryan or Thomas can sort this out for you.

> Linux version 2.4.9-32 (root@paer) (gcc version 3.0.2 (Debian)) #1 Fri Nov
> 30 19:36:30 MST 2001
...
> model   9000/782/J2240
...
> Found devices:
> 1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
> 2. unknown device (13) at 0xfc000000 [8/0], versions 0x5d, 0x3, 0xa
> 3. SummitHawk Dino RS-232 (10) at 0xfc003000 [8/0/63], versions 0x5d, 0x0,
> 0x8c
> 4. Dino PCI Bridge (13) at 0xfc004000 [8/4], versions 0x680, 0x3, 0xa
> 5. SummitHawk 230 Core BA (11) at 0xffd00000 [8/12], versions 0x5c, 0x0,
> 0x81,
> additional addresses: 0xffc00000
> 6. SummitHawk 230 Core Centronics (10) at 0xffd02000 [8/12/0], versions
> 0x5c, 0x
> 0, 0x74,  additional addresses: 0xffd03000
> 7. SummitHawk 230 Core Audio (10) at 0xffd04000 [8/12/1], versions 0x5c,
> 0x4, 0x
> 7b
> 8. SummitHawk 230 Core SCSI (10) at 0xffd06000 [8/12/5], versions 0x5c, 0x0,
> 0x8
> 2
> 9. SummitHawk 230 Core PS/2 Port (10) at 0xffd08000 [8/12/7], versions 0x5c,
> 0x0
> , 0x84
> 10. SummitHawk 230 Core PS/2 Port (10) at 0xffd08100 [8/12/8], versions
> 0x5c, 0x
> 0, 0x84
> 11. U2-IOA BC GSC+ Port (7) at 0xfc03f000 [8/63], versions 0x501, 0x1, 0xc
> 12. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb
> 13. Cujo PCI Bridge (13) at 0xf1604000 [10/4], versions 0x682, 0x1, 0xa,
> additi
> onal addresses: 0xf6000000
> 14. SummitHawk Dino RS-232 (10) at 0xf1607000 [10/4/63], versions 0x5d, 0x0,
> 0x8
> c
> 15. U2-IOA BC GSC+ Port (7) at 0xf163f000 [10/63], versions 0x501, 0x1, 0xc
> 16. SummitHawk U+ (0) at 0xfffa0000 [32], versions 0x5b5, 0x0, 0x4
> 17. SummitHawk U+ (0) at 0xfffa2000 [34], versions 0x5b5, 0x0, 0x4
> 18. SummitHawk Memory (1) at 0xfffb1000 [49], versions 0x83, 0x0, 0x9
> CONFIG_SMP=n  ignoring additional CPUs
> Warning : device (0, 0x5b5, 0x0, 0x4) NOT claimed by CPU
> CPU(s): 1 x PA8200 (PCX-U+) at 236.000000 MHz
> ccio found U2 at 0xfff88000
> io_io_low: 0xf8000000
> 19. unknown device (13) at 0xfc000000 [8/0], versions 0x5d, 0x3, 0xa
> 20. SummitHawk Dino RS-232 (10) at 0xfc003000 [8/0/63], versions 0x5d, 0x0,
> 0x8c
> 21. Dino PCI Bridge (13) at 0xfc004000 [8/4], versions 0x680, 0x3, 0xa

I think the devices showing up twice has been fixed in 2.4.16 kernels.

> 22. SummitHawk 230 Core BA (11) at 0xffd00000 [8/12], versions 0x5c, 0x0,
> 0x81,
>  additional addresses: 0xffc00000
> 23. SummitHawk 230 Core Centronics (10) at 0xffd02000 [8/12/0], versions
> 0x5c, 0
> x0, 0x74,  additional addresses: 0xffd03000
> 24. SummitHawk 230 Core Audio (10) at 0xffd04000 [8/12/1], versions 0x5c,
> 0x4, 0
> x7b
> 25. SummitHawk 230 Core SCSI (10) at 0xffd06000 [8/12/5], versions 0x5c,
> 0x0, 0x
> 82
> 26. SummitHawk 230 Core PS/2 Port (10) at 0xffd08000 [8/12/7], versions
> 0x5c, 0x
> 0, 0x84
> 27. SummitHawk 230 Core PS/2 Port (10) at 0xffd08100 [8/12/8], versions
> 0x5c, 0x
> 0, 0x84
> 28. U2-IOA BC GSC+ Port (7) at 0xfc03f000 [8/63], versions 0x501, 0x1, 0xc
> ccio found U2 at 0xfff8a000
> io_io_low: 0xf1600000
> 29. Cujo PCI Bridge (13) at 0xf1604000 [10/4], versions 0x682, 0x1, 0xa,
> additi
> onal addresses: 0xf6000000
> 30. SummitHawk Dino RS-232 (10) at 0xf1607000 [10/4/63], versions 0x5d, 0x0,
> 0x8
> c
> 31. U2-IOA BC GSC+ Port (7) at 0xf163f000 [10/63], versions 0x501, 0x1, 0xc
> Lasi version 0 at 0xffd00000 found.
> Cujo version unknown found at 0xfc000000

hmm...another nit. We should know the version by now.

> Dino version 3.1 found at 0xfc004000
> Cujo version 2.0 found at 0xf1604000
> Enabling Cujo 2.0 bug workaround
> POSIX conformance testing by UNIFIX
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Starting kswapd v1.8
> parport_init_chip: initialize bidirectional-mode.
> parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
> STI PCI ROM enabled at 0xf1ff0000
> PCI graphic ROM found at f1ff0000 (64 kB), fb @ f6000000 (32 MB)
> PCI region 0: f6000000 with 32768 kB
> PCI region 1: 00000000 with 0 kB
> PCI region 2: 00000000 with 0 kB
> PCI region 3: 00000000 with 0 kB
> PCI region 4: 00000000 with 0 kB
> PCI region 5: 00000000 with 0 kB
> PCI region 6: f1ff0000 with 64 kB
> PCI region 7: 00000000 with 0 kB
> PCI region 8: 00000000 with 0 kB
> PCI region 9: 00000000 with 0 kB
> PCI region 10: 00000000 with 0 kB
> PCI region 11: 00000000 with 0 kB
> Trying PCI STI ROM at f1ff0000, PCI hpa at f6000000
> I'm not trying to set up the PCI graphic card now... It would freeze your
> machin
> e
> Unable to handle STI device 'Hewlett-Packard Company A4977A Visualize EG'

This should work now too.
Or at least it's only know to NOT work with the C3000.

grant



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Subject: Re: [parisc-linux] Tape boot errors and NFS-Root-Howto?
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Tom wrote:
> So I'm trying to update the firmware on my C180.
...
> Decide to pull up the NFS-Root-Howto at Grant's suggestion, just boot the
> patch file off the network. Unfortunately, p.e.h.c appears to be down :-(

Correct URL for the (old) NFS Root HOWTO is:
	http://lists.parisc-linux.org/hypermail/parisc-linux/0616.html

I'll update the FAQ shortly.

> Questions: Does anyone know if I'm doing the tape creation right?

Yes. I believe you are.

> I did
> 'unshar PF_CC2X0061' (to get the .frm and .text files), then 'dd
> if=CC2X0061.frm of=/dev/st1 bs=2k' (which writes 790 records without
> error).

> The unshar says the .frm is compressed data - is this something
> that needs further unpacking before writing, perhaps?

Don't trust unshar?
grundler <516>file c200/CC2X0062.frm
c200/CC2X0062.frm: lif file

I've placed several .frm files on ftp.parisc-linux.org/kernels/
Seems like you can use the one I've placed in c200 directory.

| Patch Description: HP 9000 Models C160/C180/C200/C240 revision 6.2 firmware

> Also, does anyone
> have a local copy of the NFS-Root-Howto that they can point me to? The
> only ones I can find are ~1999 and quite out of date...

Did I just hear you volunteer to rewrite mkp's posting? ;^)
I'll get it linked to the FAQ if you do...

thanks,
grant




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Aaron Macks wrote:
> it's an HP card, not in the EISA slots, but in the big slots on the
> backplane.  Is there anything like lspci, but for the HP slots?

not really.
You could look in /proc/bus/gsc:
setup.c:                if (NULL == proc_gsc_root)
setup.c:                        proc_gsc_root = proc_mkdir("bus/gsc", 0);

hmmm...here too:
pci-dma.c:    proc_gsc_root = proc_mkdir("gsc", 0);
pci-dma.c:    create_proc_info_entry("dino", 0, proc_gsc_root, pcxl_proc_info);

Someone could take lspci could and rewrite it to deal with PARISC
IODC data (HPPB, GSC, RUNWAY, etc).

grant



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"Miles, John" wrote:
> How can I get rid of  this error OR can somebody give me a working
> XF86Config file??

apt-get install xfonts-pex

XF86Config files are always a PITA because they contain too much detail
that can't be detected. I think most of the info is by now in the mail
archive if someone has time to consolidate it into a HOW-TO.
(eg define screen resolution as returned by "fbset -i").

grant



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Grant Grundler wrote:
> Correct URL for the (old) NFS Root HOWTO is:
> 	http://lists.parisc-linux.org/hypermail/parisc-linux/0616.html
> 
> I'll update the FAQ shortly.

Done.
I've also added a link to the "official" linux NFSROOT howto:
	http://www.ibiblio.org/pub/Linux/docs/HOWTO/mini/NFS-Root

grant



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Parisc'ers,

Cross-Compiler HOWTO at:

http://www.baldric.uwo.ca/HOWTO/PARISC-Linux-XC-HOWTO.html

Please feel free to steal/link/modify![1]

Matthew mentioned that I should probably send this to the
GCC guys? (Does anyone have the interested contacts?)

c.

[1] http://www.baldric.uwo.ca/PARISC-Linux-XC-HOWTO.tar.gz



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= Playing some more with modules and initial ramdisks, I noticed that palo only
= allows use of a ramdisk when the ramdisk is placed inside the palo partition 
= rather than being able to read one from the boot ext2 filesystem.
= 
= The attached patch is a simple hack allowing palo to read a ramdisk from the 
= boot ext2 filesystem.

Oops, thought that was implemented.  Thanks for the patch, I put it
in CVS and uploaded a new debian package.

	-P



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Does this mean that the answer is to just keep downloading kernels until it
works?  BTW, somewhere in the process my problems with Eth0/1 were solved.
All I can think of was the one install that I tried from source.  I guess
the `make modules` or `make module_install` fixed something without my
knowing it.  Anyway, I can now telnet, ftp, ping, etc. my J2240 from my
WinDoze PCs so I'm a little further along.

----- Original Message -----
From: Grant Grundler <grundler@dsl2.external.hp.com>
To: Craig D. Lansing <lansing@beldar.com>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Monday, December 31, 2001 12:22 PM
Subject: Re: [parisc-linux] 2.4.16-pa24 crashes on c3k


> "Craig D. Lansing" wrote:
> > Did you ever get this resolved?
>
> Well, for the systems I can test (A500/C3000), yes.
> IIRC, Thomas Bogendoerf said he fixed it for B132 and C200.
>
> > I saw Tom's reply that it could be related to /boot extending beyond
2GB,
>
> In general yes. But given recent kernel changes around PCI/EISA HBA
numbering
> I'd say it's a kernel problem.
>
> > J2240, I have tried 32-2.4.16-pa24 and pa29 and am getting stack dumps
> > similar to yours.  I have tried the pre-compiled kernels and creating
from
> > source to no avail.  The general steps are:
> >
> > 1. Download kernel or kernel source
> > 2. Compile if from source
> > 3. Copy vmlinux***, System.map.***, and Config.*** to /boot
> > 4. Link vmlinux to vmlinux***
> > 5. Edit /etc/palo.conf
> > 6. run palo (no args)
>
> You don't need to run palo again. It doesn't hurt either.
> Just point /boot/vmlinux (or whatever palo.conf says) to the new kernel.
>
> Just a few more nits interesting to other kernel developers.
> I hope Ryan or Thomas can sort this out for you.
>
> > Linux version 2.4.9-32 (root@paer) (gcc version 3.0.2 (Debian)) #1 Fri
Nov
> > 30 19:36:30 MST 2001
> ...
> > model   9000/782/J2240
> ...
> > Found devices:
> > 1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf,
0xb
> > 2. unknown device (13) at 0xfc000000 [8/0], versions 0x5d, 0x3, 0xa
> > 3. SummitHawk Dino RS-232 (10) at 0xfc003000 [8/0/63], versions 0x5d,
0x0,
> > 0x8c
> > 4. Dino PCI Bridge (13) at 0xfc004000 [8/4], versions 0x680, 0x3, 0xa
> > 5. SummitHawk 230 Core BA (11) at 0xffd00000 [8/12], versions 0x5c, 0x0,
> > 0x81,
> > additional addresses: 0xffc00000
> > 6. SummitHawk 230 Core Centronics (10) at 0xffd02000 [8/12/0], versions
> > 0x5c, 0x
> > 0, 0x74,  additional addresses: 0xffd03000
> > 7. SummitHawk 230 Core Audio (10) at 0xffd04000 [8/12/1], versions 0x5c,
> > 0x4, 0x
> > 7b
> > 8. SummitHawk 230 Core SCSI (10) at 0xffd06000 [8/12/5], versions 0x5c,
0x0,
> > 0x8
> > 2
> > 9. SummitHawk 230 Core PS/2 Port (10) at 0xffd08000 [8/12/7], versions
0x5c,
> > 0x0
> > , 0x84
> > 10. SummitHawk 230 Core PS/2 Port (10) at 0xffd08100 [8/12/8], versions
> > 0x5c, 0x
> > 0, 0x84
> > 11. U2-IOA BC GSC+ Port (7) at 0xfc03f000 [8/63], versions 0x501, 0x1,
0xc
> > 12. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf,
0xb
> > 13. Cujo PCI Bridge (13) at 0xf1604000 [10/4], versions 0x682, 0x1, 0xa,
> > additi
> > onal addresses: 0xf6000000
> > 14. SummitHawk Dino RS-232 (10) at 0xf1607000 [10/4/63], versions 0x5d,
0x0,
> > 0x8
> > c
> > 15. U2-IOA BC GSC+ Port (7) at 0xf163f000 [10/63], versions 0x501, 0x1,
0xc
> > 16. SummitHawk U+ (0) at 0xfffa0000 [32], versions 0x5b5, 0x0, 0x4
> > 17. SummitHawk U+ (0) at 0xfffa2000 [34], versions 0x5b5, 0x0, 0x4
> > 18. SummitHawk Memory (1) at 0xfffb1000 [49], versions 0x83, 0x0, 0x9
> > CONFIG_SMP=n  ignoring additional CPUs
> > Warning : device (0, 0x5b5, 0x0, 0x4) NOT claimed by CPU
> > CPU(s): 1 x PA8200 (PCX-U+) at 236.000000 MHz
> > ccio found U2 at 0xfff88000
> > io_io_low: 0xf8000000
> > 19. unknown device (13) at 0xfc000000 [8/0], versions 0x5d, 0x3, 0xa
> > 20. SummitHawk Dino RS-232 (10) at 0xfc003000 [8/0/63], versions 0x5d,
0x0,
> > 0x8c
> > 21. Dino PCI Bridge (13) at 0xfc004000 [8/4], versions 0x680, 0x3, 0xa
>
> I think the devices showing up twice has been fixed in 2.4.16 kernels.
>
> > 22. SummitHawk 230 Core BA (11) at 0xffd00000 [8/12], versions 0x5c,
0x0,
> > 0x81,
> >  additional addresses: 0xffc00000
> > 23. SummitHawk 230 Core Centronics (10) at 0xffd02000 [8/12/0], versions
> > 0x5c, 0
> > x0, 0x74,  additional addresses: 0xffd03000
> > 24. SummitHawk 230 Core Audio (10) at 0xffd04000 [8/12/1], versions
0x5c,
> > 0x4, 0
> > x7b
> > 25. SummitHawk 230 Core SCSI (10) at 0xffd06000 [8/12/5], versions 0x5c,
> > 0x0, 0x
> > 82
> > 26. SummitHawk 230 Core PS/2 Port (10) at 0xffd08000 [8/12/7], versions
> > 0x5c, 0x
> > 0, 0x84
> > 27. SummitHawk 230 Core PS/2 Port (10) at 0xffd08100 [8/12/8], versions
> > 0x5c, 0x
> > 0, 0x84
> > 28. U2-IOA BC GSC+ Port (7) at 0xfc03f000 [8/63], versions 0x501, 0x1,
0xc
> > ccio found U2 at 0xfff8a000
> > io_io_low: 0xf1600000
> > 29. Cujo PCI Bridge (13) at 0xf1604000 [10/4], versions 0x682, 0x1, 0xa,
> > additi
> > onal addresses: 0xf6000000
> > 30. SummitHawk Dino RS-232 (10) at 0xf1607000 [10/4/63], versions 0x5d,
0x0,
> > 0x8
> > c
> > 31. U2-IOA BC GSC+ Port (7) at 0xf163f000 [10/63], versions 0x501, 0x1,
0xc
> > Lasi version 0 at 0xffd00000 found.
> > Cujo version unknown found at 0xfc000000
>
> hmm...another nit. We should know the version by now.
>
> > Dino version 3.1 found at 0xfc004000
> > Cujo version 2.0 found at 0xf1604000
> > Enabling Cujo 2.0 bug workaround
> > POSIX conformance testing by UNIFIX
> > Linux NET4.0 for Linux 2.4
> > Based upon Swansea University Computer Society NET3.039
> > Starting kswapd v1.8
> > parport_init_chip: initialize bidirectional-mode.
> > parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
> > STI PCI ROM enabled at 0xf1ff0000
> > PCI graphic ROM found at f1ff0000 (64 kB), fb @ f6000000 (32 MB)
> > PCI region 0: f6000000 with 32768 kB
> > PCI region 1: 00000000 with 0 kB
> > PCI region 2: 00000000 with 0 kB
> > PCI region 3: 00000000 with 0 kB
> > PCI region 4: 00000000 with 0 kB
> > PCI region 5: 00000000 with 0 kB
> > PCI region 6: f1ff0000 with 64 kB
> > PCI region 7: 00000000 with 0 kB
> > PCI region 8: 00000000 with 0 kB
> > PCI region 9: 00000000 with 0 kB
> > PCI region 10: 00000000 with 0 kB
> > PCI region 11: 00000000 with 0 kB
> > Trying PCI STI ROM at f1ff0000, PCI hpa at f6000000
> > I'm not trying to set up the PCI graphic card now... It would freeze
your
> > machin
> > e
> > Unable to handle STI device 'Hewlett-Packard Company A4977A Visualize
EG'
>
> This should work now too.
> Or at least it's only know to NOT work with the C3000.
>
> grant
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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"Craig D. Lansing" wrote:
> Does this mean that the answer is to just keep downloading kernels until it
> works?

I meant either look at the host bus controller enumeration code and
figure out the problem with EISA/PCI or wait until someone does.

grant



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Subject: [parisc-linux] new gdb deb for testing, patch for review
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Hi all,

Happy New Year!

I've placed a new gdb deb on ftp.parisc-linux.org, in the
unofficial-debs directory. This is built with an updated patch against
the latest gdb version in Debian.

I don't know gdb nearly as much as I'd like though, so I'd appreciate it
if someone more knowledge in this area can give the patch a once-over and 
make sure there are no glaring issues. The patch is based largely on what's 
in gdb cvs on cvs.p-l.org, with some minor updates to bring it inline with
the 5.1 version in Debian.

The deb seems to work for me, but please give it a try and let me know
if you find any issues....

ftp://ftp.parisc-linux.org/unofficial-debs/gdb_5.1-1.1_hppa.deb
ftp://ftp.parisc-linux.org/patches/gdb-5.1.diff

The patch is also filed against the gdb package in the Debian BTS.

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/



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> Cross-Compiler HOWTO at:
> 
> http://www.baldric.uwo.ca/HOWTO/PARISC-Linux-XC-HOWTO.html

Check the document title.

Regarding the "layout", you might specifically mention that the build tree
should not be in the source tree.  This causes problems if you try to build
the ada compiler in 3.1.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> The deb seems to work for me, but please give it a try and let me know
> if you find any issues....

argument passing seems to be broken

357       t_double_values(double_val1, double_val2);
(gdb) print double_val1
$1 = 45.654000000000003
(gdb) step
t_double_values (double_arg1=-1.0015640258789065, 
    double_arg2=8.5011959057330557)
    at ../../../gdb/testsuite/gdb.base/callfuncs.c:275

hmm...

randolph
-- 
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  (----)
 ( >__< )
 ^^ ~~ ^^



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> > The deb seems to work for me, but please give it a try and let me know
> > if you find any issues....
> 
> argument passing seems to be broken
> 
> 357       t_double_values(double_val1, double_val2);
> (gdb) print double_val1
> $1 = 45.654000000000003
> (gdb) step
> t_double_values (double_arg1=-1.0015640258789065, 
>     double_arg2=8.5011959057330557)
>     at ../../../gdb/testsuite/gdb.base/callfuncs.c:275

This annoying problem has been around for a long time.  Argument
printouts may not be valid at a function breakpoint due to code
motion.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: [parisc-linux] DSL on a 715/80 with rp-pppoe - MADE IT!!!
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The Problem was that I had to add the ID into pap-secrets AND 
/etc/ppp/peers/dsl-provider. My fault, but I thought I only have to put it 
into pap-secrets. 
Loading the ne module works perfect, I'm sending this mail through my 715/80 
as dsl-router

Thanks a lot, and a happy new year.

Hinrich



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On Sun, Dec 30, 2001 at 12:56:54AM +0100, Peter Mottram wrote:
> Until I restarted ppp on my 712 it had been working perfectly for nearly
> three months with no /sbin/hotplug.
> 
> Unfortunately I am a sad unstable addict (I have been since pre-buzz days
> on i386) and have updated many times since ppp was last restarted.
> 
> This one I find weird because I know that it has worked but broke sometime
> recently. The only reason I restarted the system was to finally upgrade to
> the 2.4.16 kernel I have been happily running on a C160 and a collection
> of C110s.

Is it possible you now have CONFIG_HOTPLUG=y, and didn't before?

Does adding a fake sbin/hotplug fix it?

Richard



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> 
> Cross-Compiler HOWTO at:
> 
> http://www.baldric.uwo.ca/HOWTO/PARISC-Linux-XC-HOWTO.html
> 
> Please feel free to steal/link/modify![1]
> 
> Matthew mentioned that I should probably send this to the
> GCC guys? (Does anyone have the interested contacts?)
> 
> c.
> 
> [1] http://www.baldric.uwo.ca/PARISC-Linux-XC-HOWTO.tar.gz

Correction:

[1] http://www.baldric.uwo.ca/HOWTO/PARISC-Linux-XC-HOWTO.tar.gz

Happy New Years! :)

c.



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I just tried installing 0.9.3 off the Debian installation CD.  On the
make system bootable option, nothing happened.  It appears that no
bootloader was installed.

I have a 712/80.

Where can I find a floppy 'rescue' image to boot into my root
filesystem?

Thanks

-- 
Nick



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Sorry, I didn't create a F0 partition.  Disregard.

One other thing I noticed, is that more then 4 partitions couldn't be
created on my 2 gigabyte drive.  The disk partition utility informs
that the unused space is 'unusable'?

- Nick

Nick Papadonis <npapadon@yahoo.com> writes:

> I just tried installing 0.9.3 off the Debian installation CD.  On the
> make system bootable option, nothing happened.  It appears that no
> bootloader was installed.
> 
> I have a 712/80.
> 
> Where can I find a floppy 'rescue' image to boot into my root
> filesystem?
> 
> Thanks



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On 01 Jan 2002 23:21:27 -0500
"Nick Papadonis" <npapadon@yahoo.com> wrote:
> 
> One other thing I noticed, is that more then 4 partitions couldn't be
> created on my 2 gigabyte drive.  The disk partition utility informs
> that the unused space is 'unusable'?
> 

The standard fdisk utility in Linux is pretty PC-ish, so you can only have
4 primary partitions. However you can create one of them as "extended"
partition, and within this partition you can create additional ones,

	Christian 




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> This annoying problem has been around for a long time.  Argument
> printouts may not be valid at a function breakpoint due to code
> motion.

hmm.. ok. there are a lot of failures in the gdb test cases though.
perhaps someone can investigate these?

randolph
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Ok, thats what i did.

Girst I had to make the ne2000 run. With pa27-Version
of the kernel the driver loaded without problems, and
I started.
The first big Problem was the missing /sbin/hotplug
script. That caused a massive trap15.
I first inserted a dummy script, but something else
was wrong, and I thought it was the dummy-script. So I
made apt-get install hotplug, which installed another
/sbin/hotplug script, but nothing changed of course.
Than I found an excellent howto (german one) 
http://www.adsl4linux.de
that helped me alot to configure stuff.

I think rp-pppoe performs better than pppoed, and is
much more stable.

I think the main Problem lies between my ears, because
I never installed debian, and it's hard to configure.

If somebody has questions, My email is H_Aue@t-online.de

__________________________________________________________________

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On Wed, Jan 02, 2002 at 08:35:39AM +0100, Hinrich Aue wrote:
> I think the main Problem lies between my ears, because
> I never installed debian, and it's hard to configure.

Not hard, just different.


regards,
Hamish
-- 
Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>



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Hi,
  I've not been following the list for quite some months, and I was
wondering how support for the 710 was going (i.e. is net+scsi working
yet?). It'd be nice to get my 710 actually doing something useful :&)

  I'm not on a fast connection ATM, so I thought I'd ask on the list
before spending a good few hours downloading an iso which isn't actually
any use at the end of the day :&)

-- Matt

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On Wed, Jan 02, 2002 at 03:54:15PM +0000, Matt London wrote:
>   I've not been following the list for quite some months, and I was
> wondering how support for the 710 was going (i.e. is net+scsi working
> yet?). It'd be nice to get my 710 actually doing something useful :&)

I've got a 710 up & running with the 0.93 iso without major problems.
The 710 doesn't have a CDROM, so I booted the included lifimage via
rbootd from a PC running Debian Potato (rbootd is included as package).

The only minor problem was NFS-mounting the installation CD. The Debian
installer tries a V3 mount without running a portmapper, thus hanging
for lockd/statd until timeout, which is really long. So I did the mount
by hand using the "nolock" option and told the installer to use an 
already mounted partition.

You have to upgrade the kernel after installation to get a usable (dumb)
framebuffer if you want to give XFree a try. There is no HIL mouse
support in the CVS kernel yet.

Enrik
-- 
Enrik Berkhan                                         plan b. GmbH
                                                      Rppurrer Strae 4
+49-721-388582 (voice)                                76137 Karlsruhe
+49-721-388581 (fax)                                  Germany



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On Tue, 1 Jan 2002, Richard Hirst wrote:
[snip]
> Is it possible you now have CONFIG_HOTPLUG=y, and didn't before?
>
> Does adding a fake sbin/hotplug fix it?

The 2.4.9 Debian kernal package had hotplug disabled but the 2.4.16
package has it enabled. After a quick apt-get install of hotplug I have a
happy system again. I have filed a bug report to Debian on the kernel
package requesting a dependency on hotplug. This is obviously not the real
fix that is needed, but it would at least prevent this kind of problem for
anyone else.

Cheers
PeteM




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peter@petescaff.com (Peter Mottram) writes:

> The 2.4.9 Debian kernal package had hotplug disabled but the 2.4.16
> package has it enabled. After a quick apt-get install of hotplug I have a
> happy system again. I have filed a bug report to Debian on the kernel
> package requesting a dependency on hotplug. This is obviously not the real
> fix that is needed, but it would at least prevent this kind of problem for
> anyone else.

Nah, that's the wrong answer.  The kernel shouldn't crater if hotplug isn't
present.

Slapping another dependency on the kernel image packages would mask the 
problem instead of fixing it, so I'm uninclined to implement this request.
Better someone track down and fix what's actually blowing up in the kernel,
I think.

Bdale



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From: Grant Grundler <grundler@cup.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH][RFC][CFT] remove global errno from the kernel, make _sysca (fwd)
Date: Wed, 02 Jan 2002 11:21:57 -0800
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Lennert,
I'm one of the maintainers.
I've cc'd the proper parisc kernel list.

thanks,
grant

------- Forwarded Message

From: Lennert Buytenhek <buytenh@gnu.org>
To: linux-arm-kernel@lists.arm.linux.org.uk,
	dev-etrax@axis.com, linux-ia64@linuxia64.org,
	linux-m68k@lists.linux-m68k.org, linux-mips@oss.sgi.com,
	linux-390@vm.marist.edu,
	sparclinux@vger.kernel.org,
	ultralinux@vger.kernel.org
Subject: [PATCH][RFC][CFT] remove global errno from the kernel, make _syscallX kernel-only

(Apologies for the massive cross-post, but this is a matter that concerns
all architectures.  For archs that don't have a maintainer listed in
MAINTAINERS I grabbed a random email address from arch/$arch/kernel/*.
If you're not the person to answer this for your $arch, please forward
to an appropriate person/list.)


Hi,

As I mentioned in my email to l-k with subject '[PATCH][RFC] global
errno considered harmful' earlier today, having a global errno in the
kernel doesn't really make sense.

Referenced patch [1] deletes all mention of a global errno from the
kernel, fixes up a very small number of callers that were depending on
it, and fixes up the syscall helpers in include/asm-$arch/unistd.h not
to write an error code to errno in case of error anymore.

This subtly breaks userspace code that uses these helpers, but the general
consensus seems to be that userspace code shouldn't be touching these in
the first place.  Patch [2] fixes up asm-$arch/unistd.h to only define
_syscallX in case __KERNEL_SYSCALLS__ is defined, to try and actively
break userspace (ab)users of this code (thanks to Ralf Baechle for
suggesting I should do something along these lines).

What I would like to know from each architecture team:
- - What is your arch's policy on userspace usage of asm/unistd.h, and
  consequently, what is your opinion on the goal these patches
  aim for?
- - Are the changes I made in [1] and [2] for your $arch technically
  correct?
Please CC me on replies as I'm not on any of the lists posted to.

My intention is to push these to Linus for 2.5 if everyone agrees.
They're probably too intrusive for 2.4 (although I'd love people
to convince me otherwise).


cheers,
Lennert

[1] http://www.math.leidenuniv.nl/~buytenh/errno_ectomy-1.diff
[2] http://www.math.leidenuniv.nl/~buytenh/errno_ectomy-1-to-2.diff

_______________________________________________
Linux-IA64 mailing list
Linux-IA64@linuxia64.org
http://lists.linuxia64.org/lists/listinfo/linux-ia64


------- End of Forwarded Message




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From: grundler@dsl2.external.hp.com (Grant Grundler)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [PATCH][RFC][CFT] remove global errno from the kernel
Date: Wed,  2 Jan 2002 16:42:11 -0700 (MST)
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Lennert Buytenhek wrote:
> Thanks!  I've found that it's very hard to motivate people for these
> kinds of changes (I've only had two reactions so far), so your reply is
> really appreciated!

heh - it's too much like work ;^)

BTW, the parisc code in Linus' tree is horribly stale.
We are slowly cleaning up and getting changes back to the
various upstream maintainers.  I think it's fair to mostly ignore
parisc until linus' 2.4 tree is more in sync ours.  If you
have time and/or interest, look at http://cvs.parisc-linux.org.

In any case, DTRT and we'll deal with those changes in a future merge.

thanks,
grant

grundler at parisc-linux.org



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From: Herb Radford <herbr@magma.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problem with Samba on a D370
Date: Wed, 02 Jan 2002 20:33:54 -0500
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OK, I'm trying to set up Samba on this D370 and have a small problem.
SMBD daemon starts but fails with "failed to open /etc/samba/secrets.tdb".
So I tried "strace -f smbd -D" and thats where I run out of knowledge!
I'm including the strace output but to me it looks like something I read on 
the Samba mailing list archives while poking about for an answer. It seems 
that there was some problem with 64-bit vs. 32-bit parameters at one time 
(I think in 2.2-2 which is what my version is) and I hope someone can give 
me a few pointers. ;) I don't know if this is  a Samba problem or a Debian 
problem so I'll just ask!

Do a search on secrets and the line in question is 8 lines later where 
fcntl returns EINVAL for a start of -84932400??? which is 0xfaf008d0, 
uncommonly similar to part of the LLSEEK parameter 2 line above.

Well that's my thought anyway.

Regards, Herb

1055  execve("/usr/sbin/smbd", ["smbd", "-D"], [/* 14 vars */]) = 0
1055  newuname({sys="Linux", node="HP-D370", ...}) = 0
1055  brk(0)                            = 0x1e8000
1055  open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or 
directory)
1055  open("/etc/ld.so.cache", O_RDONLY) = 3
1055  fstat64(3, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 5568, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40019000
1055  close(3)                          = 0
1055  open("/usr/lib/libcups.so.2", O_RDONLY) = 3
1055  read(3, 
"\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0E\330"..., 1024) = 1024
1055  fstat64(3, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 
0) = 0x4001b000
1055  mmap(NULL, 182992, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4002a000
1055  mprotect(0x40044000, 76496, PROT_NONE) = 0
1055  mmap(0x40053000, 12288, PROT_READ|PROT_WRITE|PROT_EXEC, 
MAP_PRIVATE|MAP_FIXED, 3, 0x19000) = 0x40053000
1055  mmap(0x40056000, 2768, PROT_READ|PROT_WRITE|PROT_EXEC, 
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40056000
1055  close(3)                          = 0
1055  open("/lib/libdl.so.2", O_RDONLY) = 3
1055  read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\37"..., 
1024) = 1024
1055  fstat64(3, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 75588, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40057000
1055  mprotect(0x4005a000, 63300, PROT_NONE) = 0
1055  mmap(0x40069000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, 
MAP_PRIVATE|MAP_FIXED, 3, 0x2000) = 0x40069000
1055  close(3)                          = 0
1055  open("/lib/libnsl.so.1", O_RDONLY) = 3
1055  read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0IL"..., 
1024) = 1024
1055  fstat64(3, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 169920, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4006a000
1055  mprotect(0x40081000, 75712, PROT_NONE) = 0
1055  mmap(0x40090000, 8192, PROT_READ|PROT_WRITE|PROT_EXEC, 
MAP_PRIVATE|MAP_FIXED, 3, 0x16000) = 0x40090000
1055  mmap(0x40092000, 6080, PROT_READ|PROT_WRITE|PROT_EXEC, 
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40092000
1055  close(3)                          = 0
1055  open("/lib/libpam.so.0", O_RDONLY) = 3
1055  read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\33"..., 
1024) = 1024
1055  fstat64(3, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 99184, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40094000
1055  mprotect(0x4009c000, 66416, PROT_NONE) = 0
1055  mmap(0x400ab000, 8192, PROT_READ|PROT_WRITE|PROT_EXEC, 
MAP_PRIVATE|MAP_FIXED, 3, 0x7000) = 0x400ab000
1055  close(3)                          = 0
1055  open("/lib/libc.so.6", O_RDONLY)  = 3
1055  read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2?@"..., 
1024) = 1024
1055  fstat64(3, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 1404268, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x400ad000
1055  mprotect(0x401e7000, 118124, PROT_NONE) = 0
1055  mmap(0x401f6000, 45056, PROT_READ|PROT_WRITE|PROT_EXEC, 
MAP_PRIVATE|MAP_FIXED, 3, 0x139000) = 0x401f6000
1055  mmap(0x40201000, 11628, PROT_READ|PROT_WRITE|PROT_EXEC, 
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40201000
1055  close(3)                          = 0
1055  open("/lib/libcrypt.so.1", O_RDONLY) = 3
1055  read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\v"..., 
1024) = 1024
1055  fstat64(3, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 247464, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40204000
1055  mprotect(0x4020a000, 222888, PROT_NONE) = 0
1055  mmap(0x40219000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, 
MAP_PRIVATE|MAP_FIXED, 3, 0x5000) = 0x40219000
1055  mmap(0x4021a000, 157352, PROT_READ|PROT_WRITE|PROT_EXEC, 
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4021a000
1055  close(3)                          = 0
1055  munmap(0x40019000, 5568)          = 0
1055  geteuid()                         = 0
1055  time(NULL)                        = 1009908465
1055  brk(0)                            = 0x1e8000
1055  brk(0x1e8030)                     = 0x1e8030
1055  brk(0x1e9000)                     = 0x1e9000
1055  open("/etc/localtime", O_RDONLY)  = 3
1055  fstat64(3, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 
0) = 0x40019000
1055  read(3, "TZif\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\2\0\0\0\2\0"..., 
4096) = 1218
1055  close(3)                          = 0
1055  munmap(0x40019000, 4096)          = 0
1055  open("/dev/urandom", O_RDONLY|O_LARGEFILE) = 3
1055  setresuid(ruid 0, euid 0, suid 0) = 0
1055  setuid(0)                         = 0
1055  geteuid()                         = 0
1055  getuid()                          = 0
1055  setresgid(rgid 0, egid 0, sgid 0) = 0
1055  setgid(0)                         = 0
1055  getegid()                         = 0
1055  getgid()                          = 0
1055  rt_sigaction(SIGSEGV, {0x196bee, [], SA_RESTART}, NULL, 8) = 0
1055  rt_sigaction(SIGBUS, {0x196bee, [], SA_RESTART}, NULL, 8) = 0
1055  rt_sigaction(SIGTERM, {0x19648e, [], SA_RESTART}, NULL, 8) = 0
1055  rt_sigprocmask(SIG_BLOCK, [PIPE], NULL, 8) = 0
1055  rt_sigprocmask(SIG_BLOCK, [FPE], NULL, 8) = 0
1055  rt_sigprocmask(SIG_BLOCK, [USR2], NULL, 8) = 0
1055  rt_sigprocmask(SIG_UNBLOCK, [HUP], NULL, 8) = 0
1055  rt_sigprocmask(SIG_UNBLOCK, [USR1], NULL, 8) = 0
1055  umask(0)                          = 022
1055  geteuid()                         = 0
1055  getegid()                         = 0
1055  getgroups(0, 0xfaf003c8)          = 1
1055  getgroups(1, [0])                 = 1
1055  umask(022)                        = 0
1055  open("/var/log/samba/log.smbd", 
O_WRONLY|O_APPEND|O_CREAT|O_LARGEFILE, 0666) = 4
1055  fstat64(4, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 
0) = 0x40019000
1055  fstat64(4, {st_mode=0, st_size=0, ...}) = 0
1055  _llseek(0x4, 0, 0x111e, 0xfaf00a88, 0) = 0
1055  munmap(0x40019000, 4096)          = 0
1055  umask(0)                          = 022
1055  umask(022)                        = 0
1055  open("/var/log/samba/log.smbd", 
O_WRONLY|O_APPEND|O_CREAT|O_LARGEFILE, 0666) = 5
1055  fstat64(5, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 
0) = 0x40019000
1055  fstat64(5, {st_mode=0, st_size=0, ...}) = 0
1055  _llseek(0x5, 0, 0x111e, 0xfaf00f08, 0) = 0
1055  munmap(0x40019000, 4096)          = 0
1055  close(4)                          = 0
1055  umask(0)                          = 022
1055  stat64("/etc/samba/smb.conf", {st_mode=0, st_size=0, ...}) = 0
1055  open("/etc/samba/smb.conf", O_RDONLY|O_LARGEFILE) = 4
1055  fstat64(4, {st_mode=0, st_size=0, ...}) = 0
1055  brk(0x1ec000)                     = 0x1ec000
1055  read(4, "# This is the main Samba configu"..., 8882) = 8882
1055  close(4)                          = 0
1055  getpid()                          = 1055
1055  brk(0x1ed000)                     = 0x1ed000
1055  open("/etc/printcap", O_RDONLY|O_LARGEFILE) = 4
1055  fstat64(4, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 
0) = 0x40019000
1055  read(4, "# /etc/printcap: printer capabil"..., 4096) = 643
1055  read(4, "", 4096)                 = 0
1055  close(4)                          = 0
1055  munmap(0x40019000, 4096)          = 0
1055  stat64("", 0xfaf00c90)            = -1 ENOENT (No such file or directory)
1055  umask(022)                        = 0
1055  open("/var/log/samba/log.smbd", 
O_WRONLY|O_APPEND|O_CREAT|O_LARGEFILE, 0666) = 4
1055  fstat64(4, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 
0) = 0x40019000
1055  fstat64(4, {st_mode=0, st_size=0, ...}) = 0
1055  _llseek(0x4, 0, 0x111e, 0xfaf01388, 0) = 0
1055  munmap(0x40019000, 4096)          = 0
1055  close(5)                          = 0
1055  umask(0)                          = 022
1055  stat64("/etc/samba/smb.conf", {st_mode=0, st_size=0, ...}) = 0
1055  umask(022)                        = 0
1055  open("/var/log/samba/log.smbd", 
O_WRONLY|O_APPEND|O_CREAT|O_LARGEFILE, 0666) = 5
1055  fstat64(5, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 
0) = 0x40019000
1055  fstat64(5, {st_mode=0, st_size=0, ...}) = 0
1055  _llseek(0x5, 0, 0x111e, 0xfaf00f08, 0) = 0
1055  munmap(0x40019000, 4096)          = 0
1055  close(4)                          = 0
1055  umask(0)                          = 022
1055  socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4
1055  ioctl(4, 0x8912, 0xfaf015d0)      = 0
1055  ioctl(4, 0x8915, 0xfaf01600)      = 0
1055  ioctl(4, 0x8913, 0xfaf01600)      = 0
1055  ioctl(4, 0x891b, 0xfaf01600)      = 0
1055  ioctl(4, 0x8915, 0xfaf015e0)      = 0
1055  ioctl(4, 0x8913, 0xfaf015e0)      = 0
1055  ioctl(4, 0x891b, 0xfaf015e0)      = 0
1055  close(4)                          = 0
1055  brk(0x1ef000)                     = 0x1ef000
1055  newuname({sys="Linux", node="HP-D370", ...}) = 0
1055  getrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=1024}) = 0
1055  setrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=10010}) = 0
1055  setrlimit(RLIMIT_NOFILE, {rlim_cur=10010, rlim_max=10010}) = 0
1055  getrlimit(RLIMIT_NOFILE, {rlim_cur=10010, rlim_max=10010}) = 0
1055  open("/etc/samba/secrets.tdb", O_RDWR|O_CREAT|O_LARGEFILE, 0600) = 4
1055  fcntl(4, F_SETLKW, {type=F_WRLCK, whence=SEEK_SET, start=1024, 
len=0}) = 0
1055  fcntl(4, F_SETLK, {type=F_WRLCK, whence=SEEK_SET, start=1024, len=0}) = 0
1055  read(4, "TDB file\n\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 
168) = 168
1055  fstat64(4, {st_mode=0, st_size=0, ...}) = 0
1055  mmap2(NULL, 696, PROT_READ|PROT_WRITE, MAP_SHARED, 4, 0) = 0x40019000
1055  _llseek(0x4, 0, 0x28, 0xfaf00b48, 0) = 0
1055  write(4, "\0\0\0\0", 4)           = 4
1055  fcntl(4, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=-84932400, 
len=0}) = -1 EINVAL (Invalid argument)
1055  munmap(0x40019000, 696)           = 0
1055  close(4)                          = 0
1055  time(NULL)                        = 1009908466
1055  brk(0x1f2000)                     = 0x1f2000
1055  time([1009908466])                = 1009908466
1055  getpid()                          = 1055
1055  rt_sigaction(SIGPIPE, {0x401fc39a, [], 0}, {SIG_DFL}, 8) = 0
1055  socket(PF_UNIX, SOCK_DGRAM, 0)    = 4
1055  fcntl(4, F_SETFD, FD_CLOEXEC)     = 0
1055  connect(4, {sin_family=AF_UNIX, path="/dev/log"}, 16) = 0
1055  send(4, "<27>Jan  1 13:07:46 smbd[1055]: "..., 91, 0) = 91
1055  rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
1055  geteuid()                         = 0
1055  fstat64(5, {st_mode=0, st_size=0, ...}) = 0
1055  write(5, "[2002/01/01 13:07:46, 0] passdb/"..., 59) = 59
1055  time([1009908466])                = 1009908466
1055  getpid()                          = 1055
1055  rt_sigaction(SIGPIPE, {0x401fc39a, [], 0}, {SIG_DFL}, 8) = 0
1055  send(4, "<27>Jan  1 13:07:46 smbd[1055]: "..., 72, 0) = 72
1055  rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) = 0
1055  geteuid()                         = 0
1055  write(5, "  Failed to open /etc/samba/secr"..., 40) = 40
1055  stat64("/usr/share/samba/codepages/codepage.850", {st_mode=0, 
st_size=0, ...}) = 0
1055  open("/usr/share/samba/codepages/codepage.850", O_RDONLY|O_LARGEFILE) = 6
1055  read(6, "\1\0R\3|\0\0\0", 8)      = 8
1055  read(6, 
"\205\267\1\1\240\265\1\1\203\266\1\1\306\307\1\1\204\216"..., 124) = 124
1055  close(6)                          = 0
1055  stat64("/usr/share/samba/codepages/unicode_map.850", {st_mode=0, 
st_size=0, ...}) = 0
1055  open("/usr/share/samba/codepages/unicode_map.850", 
O_RDONLY|O_LARGEFILE) = 6
1055  fstat64(6, {st_mode=0, st_size=0, ...}) = 0
1055  mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 
0) = 0x40019000
1055  read(6, "\1\200850\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\2\0\0\0\0"..., 
4096) = 4096
1055  mmap(NULL, 135168, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 
-1, 0) = 0x40241000
1055  read(6, "\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_"..., 
126976) = 126976
1055  read(6, "\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_\0_"..., 4096) 
= 542
1055  close(6)                          = 0
1055  munmap(0x40019000, 4096)          = 0
1055  rt_sigaction(SIGHUP, {0x19649e, [], SA_RESTART}, NULL, 8) = 0
1055  fork()                            = 1056
1055  --- SIGCHLD (Child exited) ---
1055  exit(0)                           = ?




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From: Bill Ferguson <ferguson@quango.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Upgrading 715/100 Firmware
Date: Thu, 03 Jan 2002 01:12:26 -0800
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I know this has been asked a zillion times but bear with me.  I'm pretty 
new to Linux, but familar with many other operating systems.

I've got debian 0.9.3 installed on a 715/100.  Seems to work pretty well.

My question relates to getting the firmware to a "scratch disk"  which 
Grant speaks of in the archives (in my case sda1 set to type F0).  sdb1, 
sdb2, sdb3, sdb4 are the disks where the Linux install resides.

Is type F0 the correct type to load firmware from?  Is there any parameters 
other than:
dd if=c7x50016.frm of=/dev/sda1   ?   Do I need a block size parameter? eg 
bs=2k like it says with tape?    Does sda1 need to be mounted first before 
using dd ?  How does one mount an F0 disk?   What does F0 mean?  Is it HP 
format?

I've tried booting from bootp, cdrom, tape, and now scratch disk and I 
can't get the LIF image to work.





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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Problem with Samba on a D370
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On Wed, Jan 02, 2002 at 08:33:54PM -0500, Herb Radford wrote:
> OK, I'm trying to set up Samba on this D370 and have a small problem.
> SMBD daemon starts but fails with "failed to open /etc/samba/secrets.tdb".
> So I tried "strace -f smbd -D" and thats where I run out of knowledge!
> I'm including the strace output but to me it looks like something I read on 
> the Samba mailing list archives while poking about for an answer. It seems 
> that there was some problem with 64-bit vs. 32-bit parameters at one time 
> (I think in 2.2-2 which is what my version is) and I hope someone can give 
> me a few pointers. ;) I don't know if this is  a Samba problem or a Debian 
> problem so I'll just ask!
> 
> Do a search on secrets and the line in question is 8 lines later where 
> fcntl returns EINVAL for a start of -84932400??? which is 0xfaf008d0, 
> uncommonly similar to part of the LLSEEK parameter 2 line above.

"samba busted see #126763, hppa glibc problem with file locking"

Check that bug # on bugs.debian.org for more details.  There is a patch
to samba to avoid the glibc problem there, I think, but I havn't tried
it.

Richard




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Herb

This is fixed in the latest Debian version of samba available in the
unstable/sid distribution.  The new version number of the samba packages
is: 2.2.2-4

This package doesn't yet appear to be built for hppa, but if you add an
appropriate deb-src line for sid in your sources.list file then you can
download and build the new samba packages using:

apt-get source samba --build

& then install the packages using 'dpkg -i'

Hope I'm not teaching grandma to suck eggs here.

Regards
PeteM

On Thu, 3 Jan 2002, Richard Hirst wrote:

> On Wed, Jan 02, 2002 at 08:33:54PM -0500, Herb Radford wrote:
[snip]
>
> "samba busted see #126763, hppa glibc problem with file locking"
>
> Check that bug # on bugs.debian.org for more details.  There is a patch
> to samba to avoid the glibc problem there, I think, but I havn't tried
> it.
>
> Richard





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On Wed, Jan 02, 2002 at 10:29:08AM -0700, Bdale Garbee wrote:
> peter@petescaff.com (Peter Mottram) writes:
> 
> > The 2.4.9 Debian kernal package had hotplug disabled but the 2.4.16
> > package has it enabled. After a quick apt-get install of hotplug I have a
> > happy system again. I have filed a bug report to Debian on the kernel
> > package requesting a dependency on hotplug. This is obviously not the real
> > fix that is needed, but it would at least prevent this kind of problem for
> > anyone else.
> 
> Nah, that's the wrong answer.  The kernel shouldn't crater if hotplug isn't
> present.

IIRC this is tied up with the __execve code in arch/parisc/kernel/entry.S:

        bl      sys_execve, %r2
        copy    %r16, %r26

        cmpib,=,n 0,%r28,intr_return    /* forward */

>>>>>>  /* yes, this will trap and die. */
        copy    %r15, %r2
        bv      %r0(%r2)
        nop

which does not handle sys_execve failing when invoked from the kernel.
We had the same problem when /sbin/modprobe didn't exist.

Richard




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On Tue, Jan 01, 2002 at 08:38:48PM -0800, Christian Suder wrote:
> The standard fdisk utility in Linux is pretty PC-ish, so you can only have
> 4 primary partitions. However you can create one of them as "extended"
> partition, and within this partition you can create additional ones,

this was a deliberate decision on our part to use the PC partition format
by default.  i don't think it's one to be ashamed of.  hpux's partitioning
scheme wasn't appropriate, and there are more tools which understand pc
partitioning than understand, say, sgi disklabels.

-- 
Revolutions do not require corporate support.



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Subject: Re: [parisc-linux] Upgrading 715/100 Firmware
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On Thu, 3 Jan 2002, Bill Ferguson wrote:
> I know this has been asked a zillion times but bear with me.  I'm pretty
> new to Linux, but familar with many other operating systems.
>
> I've got debian 0.9.3 installed on a 715/100.  Seems to work pretty well.
>
> My question relates to getting the firmware to a "scratch disk"  which
> Grant speaks of in the archives (in my case sda1 set to type F0).  sdb1,
> sdb2, sdb3, sdb4 are the disks where the Linux install resides.
>
> Is type F0 the correct type to load firmware from?  Is there any parameters
> other than:
> dd if=c7x50016.frm of=/dev/sda1   ?   Do I need a block size parameter? eg
> bs=2k like it says with tape?    Does sda1 need to be mounted first before
> using dd ?  How does one mount an F0 disk?   What does F0 mean?  Is it HP
> format?
>
> I've tried booting from bootp, cdrom, tape, and now scratch disk and I
> can't get the LIF image to work.

I *finally* managed to upgrade mine. I used three Seagate DDS2 DAT drives
to write the tape, none of which would be read by the drive in the HP (one
of the Seagates). Each of them barfed "bad IPL checksum"... I finally
borrowed a spare HP SureStore 6000 DDS2 DAT drive from work; it wouldn't
read either tape used by the other drives, but when I used the HP drive to
burn the tape it booted and updated fine. I also told it not to interact
with IPL, and disabled compression on the drive (mt -f /dev/st0
datcompression 0).

I used 'dd if=CC2X0061.frm of=/dev/st0 bs=2k' as my command line, your
patch file will surely be different :-)




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Subject: [parisc-linux] Re: Upgrading 715/100 Firmware
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Bill Ferguson wrote:
> I know this has been asked a zillion times but bear with me.  I'm pretty 
> new to Linux, but familar with many other operating systems.
> 
> I've got debian 0.9.3 installed on a 715/100.  Seems to work pretty well.
> 
> My question relates to getting the firmware to a "scratch disk"  which 
> Grant speaks of in the archives (in my case sda1 set to type F0).  sdb1, 
> sdb2, sdb3, sdb4 are the disks where the Linux install resides.

"scratch disk" means the whole *disk*. PDC loader doesn't know anything
about partitions.  ie if /dev/sda is "scratch", then use
	dd if=c7x50016.frm of=/dev/sda bs=2k

(Note: bs parameter doesn't do anything since the disk is 512 sectors
no matter what we specify....just a good reminder in case we use different
media)

> I've tried booting from bootp, cdrom, tape, and now scratch disk and I 
> can't get the LIF image to work.

*sigh*. bootp, tape, and disk definitely work - I've done all three.
Are you *sure* it's a LIF image you are playing with?
"lifls C7X50016.frm" under HPUX will display the LIF contents.

Can you compare md5sum output?
	grundler <511>md5sum *.frm
	4d7dc913c507eda18c34e8af29352086  C7X50016.frm

(This is from ftp://ftp.parisc-linux.org/kernels/715/C7X50016.frm)

grant



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Subject: Re: [parisc-linux] DISREGARD 0.9.3 installer didn't set 712 bootable
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Matthew Wilcox wrote:
> hpux's partitioning scheme wasn't appropriate

I'll go a step further: hpux boot loader supports two disk partitioning
schemes and both are unusable for linux. "hard partitioning" just
plain sucks and is unmaintainable. HPUX LVM partitions are unreadable by
linux since HP can't (not HP's IP) release the spec.

grant



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From: Bill Ferguson <ferguson@quango.net>
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Subject: [parisc-linux] Re: Upgrading 715/100 Firmware
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At 10:45 AM 1/3/2002 -0700, you wrote:
>"scratch disk" means the whole *disk*. PDC loader doesn't know anything
>about partitions.  ie if /dev/sda is "scratch", then use
>         dd if=c7x50016.frm of=/dev/sda bs=2k


Okay..so a disk with no partitions at all?  Correct?

The term "scratch" has a different meaning to me from a different OS, as in 
a spare tape or drive that is formated but not used.

I'll try it with unpartitioned?  or just one partition?


>(Note: bs parameter doesn't do anything since the disk is 512 sectors
>no matter what we specify....just a good reminder in case we use different
>media)
>
> > I've tried booting from bootp, cdrom, tape, and now scratch disk and I
> > can't get the LIF image to work.
>
>*sigh*. bootp, tape, and disk definitely work - I've done all three.
>Are you *sure* it's a LIF image you are playing with?
>"lifls C7X50016.frm" under HPUX will display the LIF contents.
>
>Can you compare md5sum output?
>         grundler <511>md5sum *.frm
>         4d7dc913c507eda18c34e8af29352086  C7X50016.frm
>
>(This is from ftp://ftp.parisc-linux.org/kernels/715/C7X50016.frm)
>
>grant


MD5SUM matches exactly.   I think the problem is the partitions.  I'll get 
rid of that and try again.





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Now that worked!   My firmware is up to date!

Disk has to "raw" unpartitioned.   Thanks Grant!  I'll now write that FAQ 
for booting firmware I promised!

BTW. I found an old Syquest Ezdrive to use as a scratch disk, works pretty 
well since its scsi.


At 10:45 AM 1/3/2002 -0700, Grant Grundler wrote:
>Bill Ferguson wrote:
> > I know this has been asked a zillion times but bear with me.  I'm pretty
> > new to Linux, but familar with many other operating systems.
> >
> > I've got debian 0.9.3 installed on a 715/100.  Seems to work pretty well.
> >
> > My question relates to getting the firmware to a "scratch disk"  which
> > Grant speaks of in the archives (in my case sda1 set to type F0).  sdb1,
> > sdb2, sdb3, sdb4 are the disks where the Linux install resides.
>
>"scratch disk" means the whole *disk*. PDC loader doesn't know anything
>about partitions.  ie if /dev/sda is "scratch", then use
>         dd if=c7x50016.frm of=/dev/sda bs=2k
>
>(Note: bs parameter doesn't do anything since the disk is 512 sectors
>no matter what we specify....just a good reminder in case we use different
>media)
>
> > I've tried booting from bootp, cdrom, tape, and now scratch disk and I
> > can't get the LIF image to work.
>
>*sigh*. bootp, tape, and disk definitely work - I've done all three.
>Are you *sure* it's a LIF image you are playing with?
>"lifls C7X50016.frm" under HPUX will display the LIF contents.
>
>Can you compare md5sum output?
>         grundler <511>md5sum *.frm
>         4d7dc913c507eda18c34e8af29352086  C7X50016.frm
>
>(This is from ftp://ftp.parisc-linux.org/kernels/715/C7X50016.frm)
>
>grant
>
>
>--
>To UNSUBSCRIBE, email to debian-hppa-request@lists.debian.org
>with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org





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For better or worse -- seems to work.

	-P



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Okay, I finally got my EVC-VGA adapter from HP (who are actually the
cheapest place to get one!) and plugged in the A1097C monitor so I can
start using a local keyboard/mouse/monitor on the C180. I changed the
console in the PDC from serial_1 to graphics(0), checked that graphics(0)
is the local video adapter and said it's settings were 1280x1024@75hz,
then rebooted. After I got a completely scrambled screen, I remembered
that the A1097C is 1280x1024@72...

Unfortunately, since graphics(0) is valid, I no longer get PDC info on the
serial cable. Does anyone know how I can reset this, or force it to go
back to the serial console?

I also found one source online that said the A1097C monitor is
1280x960@75, rather than 1280x1024. Anyone at HP care to confirm or deny
this? :-)




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Tom,


on the (older) C110 you hit <TAB> as soon as the monitor shows some sign
of life and it will cycle through the available settings. I guess it's the
same on a C180.

Otherwise you can remove the adapter to force it back to the serial
console. 

	Christian 



On Thu, 3 Jan 2002 17:56:21 -0900 (AKST)
"Tom" <palinux@alaskatech.org> wrote:

> Okay, I finally got my EVC-VGA adapter from HP (who are actually the
> cheapest place to get one!) and plugged in the A1097C monitor so I can
> start using a local keyboard/mouse/monitor on the C180. I changed the
> console in the PDC from serial_1 to graphics(0), checked that
graphics(0)> is the local video adapter and said it's settings were
1280x1024@75hz,> then rebooted. After I got a completely scrambled screen,
I remembered> that the A1097C is 1280x1024@72...
> 
> Unfortunately, since graphics(0) is valid, I no longer get PDC info on
the> serial cable. Does anyone know how I can reset this, or force it to
go> back to the serial console?
> 
> I also found one source online that said the A1097C monitor is
> 1280x960@75, rather than 1280x1024. Anyone at HP care to confirm or deny
> this? :-)
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Christian Suder writes...

> Otherwise you can remove the adapter to force it back to the serial
> console. 

Or unplug the keyboard IIRC.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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On Thu, 3 Jan 2002, Christian Suder wrote:
> on the (older) C110 you hit <TAB> as soon as the monitor shows some sign
> of life and it will cycle through the available settings. I guess it's the
> same on a C180.

Let the record show that hitting [TAB] on the C180 as soon as the monitor
scrambles will cycle repeatedly through all 15 monitor settings; the
A1097C likes #12, at 1280x1024@75...

> Otherwise you can remove the adapter to force it back to the serial
> console.

This would have been my first thought, except for the whole "integrated
video" thing the C180 does :-)




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Now that the nice monitor works I loaded the LinuxLogo package, so I can
get my cool Debian logo on boot, plus see those all-important bogoMIPS
scores :-)

However, I noticed that my logo shows that I have "zero 180.0000 mhz
processors" in my system. Has anyone else noticed this error? I believe
the 715/100 behaved correctly...




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Subject: [parisc-linux] Re: Upgrading 715/100 Firmware
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On Thu, Jan 03, 2002 at 01:27:04PM -0800, Bill Ferguson wrote:
> Now that worked!   My firmware is up to date!
> 
> Disk has to "raw" unpartitioned.   Thanks Grant!  I'll now
> write that FAQ for booting firmware I promised!

It doesn't matter if it's partitioned or not.  When you
dd ... of=/dev/sda
you overwrite the partition table anyway...

-- 
Michael Wood <mwood@its.uct.ac.za>



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At 10:57 AM 1/4/2002 +0200, you wrote:
>It doesn't matter if it's partitioned or not.  When you
>dd ... of=/dev/sda
>you overwrite the partition table anyway...
>
>--
>Michael Wood <mwood@its.uct.ac.za>


That maybe true but it didn't boot for me when I did that.  It was only 
when I deleted the partitions that it booted.

Anyone know how to get the STI console working?   It sees the two frame 
buffers in the 715, but isn't going there.    I see lots of posts in the 
archives asking this question, but not too many replies in archives with 
the answer.





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From: Christian Suder <csuder@cisco.com>
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Subject: [parisc-linux] Need five #defines, please.....
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Ok,


I'm trying to skin the lizard (mozilla 0.9.7). I can build with the linux
default pthreads, but it doesn' work, windows show up but the content is
not drawn etc.. Hence I'd like to try a build with "classic" NSPR, which
implements it's own threading mechanism. Problem : There is a couple of
hardware-specific definitions that I don't know how to do, but somebody
with some insight in parisc-linux may be able to put it down in 5 minutes
(I hope..). Or maybe it has been solved it already ? 

Here's what I'm missing : 

#elif defined(__hppa__)
/* parisc */    
#define _MD_GET_SP(_t) 
#define _MD_SET_FP(_t, val)
#define _MD_GET_SP_PTR(_t) 
#define _MD_GET_FP_PTR(_t)
#define _MD_SP_TYPE 

As a hint, here some existing defines. As far as my limited incompetence
can tell these provide access to some of the context information of the
threads :

/* Sparc */  
#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[JB_FP] = val)
#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[JB_FP])
#define _MD_SP_TYPE int

/* Alpha based Linux */
#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
#define _MD_SET_FP(_t, val)
#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
#define _MD_GET_FP_PTR(_t) ((void *) 0)
#define _MD_SP_TYPE long int


/* Intel based Linux */ 
#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[JB_BP] = val)
#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))                           
#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[JB_BP])         
     #define _MD_SP_TYPE int


Thanks,
	Christian 



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Subject: Re: [parisc-linux] Need five #defines, please.....
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Christian,

Can you keep me informed about this issue, as I am very keen on getting
mozilla to work on my 712/60. I've tried to compile the 0.9.5 version, a
long time ago, without any success (see earlier posts). I'm interested in
which files I need to modify, configure options, compiler options, ... .

Many thanks in advance.


regards,
Kenneth

----- Original Message -----
From: "Christian Suder" <csuder@cisco.com>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Friday, January 04, 2002 10:25 AM
Subject: [parisc-linux] Need five #defines, please.....


> Ok,
>
>
> I'm trying to skin the lizard (mozilla 0.9.7). I can build with the linux
> default pthreads, but it doesn' work, windows show up but the content is
> not drawn etc.. Hence I'd like to try a build with "classic" NSPR, which
> implements it's own threading mechanism. Problem : There is a couple of
> hardware-specific definitions that I don't know how to do, but somebody
> with some insight in parisc-linux may be able to put it down in 5 minutes
> (I hope..). Or maybe it has been solved it already ?
>
> Here's what I'm missing :
>
> #elif defined(__hppa__)
> /* parisc */
> #define _MD_GET_SP(_t)
> #define _MD_SET_FP(_t, val)
> #define _MD_GET_SP_PTR(_t)
> #define _MD_GET_FP_PTR(_t)
> #define _MD_SP_TYPE
>
> As a hint, here some existing defines. As far as my limited incompetence
> can tell these provide access to some of the context information of the
> threads :
>
> /* Sparc */
> #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
> #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[JB_FP] = val)
> #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
> #define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[JB_FP])
> #define _MD_SP_TYPE int
>
> /* Alpha based Linux */
> #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
> #define _MD_SET_FP(_t, val)
> #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
> #define _MD_GET_FP_PTR(_t) ((void *) 0)
> #define _MD_SP_TYPE long int
>
>
> /* Intel based Linux */
> #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
> #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[JB_BP] = val)
> #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
> #define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[JB_BP])
>      #define _MD_SP_TYPE int
>
>
> Thanks,
> Christian
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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Subject: [parisc-linux] 755 sucess and questions
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so I got 0.93 to install on my 755/125, but I have two questions:
-how does one configure a mouse on a serial port
-how does one configure X
Aaron
-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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From: Aaron Macks <aaronm@cs.brandeis.edu>
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Subject: Re: [parisc-linux] 755 sucess and questions
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To: "Bryan W. Headley" <bheadley@interaccess.com.ml.to>
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On Fri, Jan 04, 2002 at 01:39:24PM -0600, Bryan W. Headley wrote:
> Aaron Macks wrote:
> 
> > so I got 0.93 to install on my 755/125, but I have two questions:
> > -how does one configure a mouse on a serial port
> > -how does one configure X
> > Aaron
> 
> 
ok, the framebuffer stuff sounds good, can be done when I return to
the machine
> 1. You need to know your framebuffer's screen resolution. Run fbset, or 
> look at /var/log/messages.
> 
> piddle:/etc/X11# /usr/sbin/fbset -i
> 
> mode "1280x1024"
>      geometry 1280 1024 1280 1024 32
>      timings 0 0 0 0 0 0 0
>      rgba 8/16,8/8,8/0,8/24
> endmode
> 
> Frame buffer device information:
>      Name        :
>      Address     : 0xf5000000
>      Size        : 8388608
>      Type        : PACKED PIXELS
>      Visual      : TRUECOLOR
>      XPanStep    : 0
>      YPanStep    : 0
>      YWrapStep   : 0
>      LineLength  : 8192
>      Accelerator : No
> 
> Mine tells me I have 1280x1024, 32-color. 8-color is also popular (look 
> at the last number in the "geometry" line.
> 
> 2. Run debconf. (Apply the patch first). It generally offers several 
> screen resolutions. You only want ONE resolution: the one the 
> framebuffer supports. Here, we're talking 1280x1024
which patch for debconf?
> 
> 3. Your mouse is a little different, but not that different. Tell 
> debconf whether it's a microsoft-compatible or logitech protocol mouse, 
> and which tty port it's connected to. (Really: not an HP mouse?)
> 
The only reason I'm not using the HP mouse(there is a HIL one attached
to the keyboard) is that the docs I saw online stated a lack of
support for the hil mice.
> 4. Linux is generally rigged not to use the serial ports for 
> modems/terminals. But yours might be... It's configured in /etc/inittab.
> 
> 	# Example how to put a getty on a serial line (for a terminal)
> 	#
> 	#T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100
> 	#T1:23:respawn:/sbin/getty -L ttyS1 9600 vt100
> 
> 	# Example how to put a getty on a modem line.
> 	#
> 	#T3:23:respawn:/sbin/mgetty -x0 -s 57600 ttyS3
> 
> 5. Here's my XF86Config-4 file for your amusement.
> 
thanks!
Aaron
> 
> 
> 
> -- 
> ____               .:.                 ____
> Bryan W. Headley - bheadley@interaccess.com
> 
> 
> [These attachments have been stored at Thinmail:]
> 
> http://www.thinmail.com/tm/v/mULUNBn8aFV/XF86Config-4
> Size: 2881 Type: Plain Text Category: Received
> 
-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Need five #defines, please.....
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On Fri, Jan 04, 2002 at 01:25:59AM -0800, Christian Suder wrote:
> I'm trying to skin the lizard (mozilla 0.9.7). I can build with the linux
> default pthreads, but it doesn' work, windows show up but the content is
> not drawn etc.. Hence I'd like to try a build with "classic" NSPR, which
> implements it's own threading mechanism. Problem : There is a couple of
> hardware-specific definitions that I don't know how to do, but somebody

I don't thing anyone has ported libc5 to hppa. Those missing defines are
libc5 hooks, iirc.

Fixing pthreads would be much more productive.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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From: Rogelio Robles <rogelio_robles@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Help getting xf86 cfg file for a HP PA 9000/J210XC running debian hppa Linux
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Hello Guys,

I'm close to have success running XFree86 4.1.0 that
comes with HPPA GNU/Linux 0.9.3 but I'm still
receiving a "parameter error" message.

I'm sending you this message to ask for your help
getting to run XFree86 on a HP 9000 J210XC workstation
running the latest version of debian GNU/Linux.

I have a debian pa-risc GNU/Linux 0.9.3 running on my
system, everything seems that it's working fine but
XFree86 X server. After several hours invested in this
past holiday season I haven't had luck getting this
guy to start running.

I had a partial success in my XF86Config file, I'm
using the frame buffer driver or "fbdev" and it seems
that it's working because I receive infomrational
messages from the driver itself: video ram 2MB, etc,
but it terminates quickly saying that there is a
"parameter error". It seems that there is something
specified in the file that it doesn't like it. 

I would like you to share with me, if you don't mind,
your XF86Config file or maybe pointing me to the right
place so I can find what I need to state in my xf86
cfg file to start the X server on this system.

I've been using GNU/Linux since some years ago mostly
on x86 platforms with incremental success and some GNU
SW on Sun Solaris. Currently I have a RedHat 7.1
system running at home with the latest versions of
available programs and I'd like to replicate the same
in this system that I just got.

Thanks in advance for your help,
Rogelio


__________________________________________________
Do You Yahoo!?
Send your FREE holiday greetings online!
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Subject: Re: [parisc-linux] Need five #defines, please.....
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At 11:31 PM 1/4/2002 +0100, Thomas Bogendoerfer wrote:
>On Fri, Jan 04, 2002 at 01:25:59AM -0800, Christian Suder wrote:
> > I'm trying to skin the lizard (mozilla 0.9.7). I can build with the linux
> > default pthreads, but it doesn' work, windows show up but the content is
> > not drawn etc.. Hence I'd like to try a build with "classic" NSPR, which
> > implements it's own threading mechanism. Problem : There is a couple of
> > hardware-specific definitions that I don't know how to do, but somebody
>
>I don't thing anyone has ported libc5 to hppa. Those missing defines are
>libc5 hooks, iirc.

If I'm not mistaken libc5 <=> glibc1 and libc6 <=> glibc2, these are the 
ones for glibc2. In any case it runs on a (Linux-)Sparc with glibc2.


>Fixing pthreads would be much more productive.

Agree. However I believe the problems to be caused by sloppy programming in 
terms of thread handling, at least that was the issue I had with the pan 
newsreader (which behaved similar, btw). I don't think that can be fixed in 
the NSPR abstraction layer if it is caused by the application not calling 
the appropriate functions when needed. And I'm not going to dig through 160 
MB of source to find where somebody didn't initialize something 
correctly.... I'm going back and forth though to see if it is something hat 
can be done in NSPR.

Especially when in the end I don't want to run mozilla anyways. I just want 
the rendering engine to work so some more lightweight client like galeon 
can be used.

         Christian 




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On Fri, Jan 04, 2002 at 03:58:06PM -0800, Christian Suder wrote:
> If I'm not mistaken libc5 <=> glibc1 and libc6 <=> glibc2, these are the 
> ones for glibc2. In any case it runs on a (Linux-)Sparc with glibc2.

you are right, it's not a libc5 thing. I'm going to look at that tomorrow.

> >Fixing pthreads would be much more productive.
> 
> Agree. However I believe the problems to be caused by sloppy programming in 

right now I'm not sure, which mozilla gets further. Mine dies without 
display anything in nsGetModule of libimglib2.so. At least that's what 
gdb tells me. I've build my mozilla from the debian 0.9.7-2 sources.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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Hello,

Are there drivers for the A4071B graphics card? If so could someone please 
direct me to them.

Thanks,
Eli


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Peter,

> This package doesn't yet appear to be built for hppa, but if you add an
> appropriate deb-src line for sid in your sources.list file then you can
> download and build the new samba packages using:
>
> apt-get source samba --build
>
> & then install the packages using 'dpkg -i'
>
> Hope I'm not teaching grandma to suck eggs here.

You may be for Herb, but for those of us new to Debian, this is a great way
to learn something without having to ask first.  :)

What do you mean by an appropriate line in the sources.list?  Is it a link
to the location of the samba package?

Thanks,

Pete




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"Peter Lavender" writes...

> What do you mean by an appropriate line in the sources.list?  Is it a link
> to the location of the samba package?

`man sources.list` and read about deb-src.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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Quoth Matt Taggart:
> "Peter Lavender" writes...
> 
> > What do you mean by an appropriate line in the sources.list?  Is it a link
> > to the location of the samba package?
> 
> `man sources.list` and read about deb-src.
> 
> -- 
> Matt Taggart        Linux Development Lab
> taggart@fc.hp.com   HP Linux Systems Operation

Also, feel free to ask any Debian-related questions (newbie or
otherwise) on the debian-hppa mailing list[1].

Andrew.

[1]  http://www.debian.org/MailingLists/subscribe

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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Subject: [parisc-linux] [Q] how to get the SP from __jmpbuf / glibc
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Hello,

trying to convince an application to compile and run on palinux I have the
following problem:

The application tries to figure out the stackpointer with

(_t)->md.context[0].__jmpbuf[JB_SP]

however bits/setjmp.h defines the jmpbuf as:

typedef double __jmp_buf[21];  

so it returns a double which the compiler doesn't like as pointer. A
couple of questions as I'm a) a lousy programmer and b) couldn't find the
basic information on what the CPU stores how.

Is double used to cover 64 bit support ? Isn't there a better way than to
use a floating point variable ? 

How does the information in the __jmpbuf look like ? I don't think the SP
occupies 64 bit ? Would the lower 32 bit be the SP ? 

Is the SP 32 bit at all ? Or is there any funky alignment or indexing or
whatever going on ? Where can I find that information about the CPU ? 

How do I get the SP from the __jmpbuf ? 

Thanks for bearing with my ignorance,

	Christian 



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Anyone got a copy of HP-UX 11 they want to sell or trade or give away?
Unfortunately my 9000K 580 has the PB scsi interface which is not
currently supported in linux :((  

Best Wishes
Robert Stanford





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Subject: [parisc-linux] LED blinking ;-(
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Hi,

had my apollo 715 updated this weekend and perhaps because the machine
stood somewhere else I never had noticed that the LED 4 (OS running) has
been blinking.

Well I have no idea who is responsible for this the OS or the
machine(firmware) but ...

... can one change this to a constant on ? - or at least not blinking
that frequent or in a radom intervall ?

I feel it very maddening the way it is at the monent ;-(

TIA

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/




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On Sunday 06 January 2002 17:33, Bjoern A. Zeeb wrote:
> Hi,

Hi Bjoern,

> had my apollo 715 updated this weekend and perhaps because the machine
> stood somewhere else I never had noticed that the LED 4 (OS running) has
> been blinking.
> Well I have no idea who is responsible for this the OS or the
> machine(firmware) but ...

AFAIK, I am.

> ... can one change this to a constant on ? - or at least not blinking
> that frequent or in a radom intervall ?

I assume you talk about the "Heartbeat LED" with which we blink in the
same frequency as a heart. That's also the behaviour under HP/UX.

You may see the actual values with:
pa64:~# cat /proc/pdc/led
Heartbeat: 1
Disk IO: 1
LAN Rx/Tx: 1

and change it with one of the following commands:
pa64:~# echo "0 1 1" > /proc/pdc/led
turns off only the heartbeat LED,
pa64:~# echo "0 0 0" > /proc/pdc/led
turns off all LEDs.

Helge




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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] PIC assembly
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--lCAWRPmW1mITcIfM
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There is bug in the libgcrypt package in Debian where one of the
assembly routines was not written for PIC linking. The bug is:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=127863&repeatmerged=yes

I'ved filed a possible patch for this in the bug report, but I'm not
100% convinced I understand this correctly. Can someone please take a
look and let me know? 

the original .S file and the patch are also attached

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^

--lCAWRPmW1mITcIfM
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="udiv-qrnnd.S"

/* HP-PA  __udiv_qrnnd division support, used from longlong.h.
 *	  This version runs fast on PA 7000 and later.
 *
 *      Copyright (C) 1993, 1994, 1998, 
 *                    2001 Free Software Foundation, Inc.
 *
 * This file is part of GnuPG.
 *
 * GnuPG is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * GnuPG is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 *
 * Note: This code is heavily based on the GNU MP Library.
 *	 Actually it's the same code with only minor changes in the
 *	 way the data is stored; this is to support the abstraction
 *	 of an optional secure memory allocation which may be used
 *	 to avoid revealing of sensitive data due to paging etc.
 *	 The GNU MP Library itself is published under the LGPL;
 *	 however I decided to publish this code under the plain GPL.
 */



/* INPUT PARAMETERS
 *   rem_ptr	   gr26
 *   n1 	   gr25
 *   n0 	   gr24
 *   d		   gr23
 */

	.code
	.label L$0000
	.word		0x43f00000
	.word		0x0
	.export 	__udiv_qrnnd
	.label		__udiv_qrnnd
	.proc
	.callinfo	frame=64,no_calls
	.entry
	ldo		64(%r30),%r30

	stws		%r25,-16(0,%r30)	; n_hi
	stws		%r24,-12(0,%r30)	; n_lo
	ldil		L'L$0000,%r19           ; '
	ldo		R'L$0000(%r19),%r19     ; '
	fldds		-16(0,%r30),%fr5
	stws		%r23,-12(0,%r30)
	comib,<=	0,%r25,L$1
	fcnvxf,dbl,dbl	%fr5,%fr5
	fldds		0(0,%r19),%fr4
	fadd,dbl	%fr4,%fr5,%fr5
	.label	L$1
	fcpy,sgl	%fr0,%fr6L
	fldws		-12(0,%r30),%fr6R
	fcnvxf,dbl,dbl	%fr6,%fr4

	fdiv,dbl	%fr5,%fr4,%fr5

	fcnvfx,dbl,dbl	%fr5,%fr4
	fstws		%fr4R,-16(%r30)
	xmpyu		%fr4R,%fr6R,%fr6
	ldws		-16(%r30),%r28
	fstds		%fr6,-16(0,%r30)
	ldws		-12(0,%r30),%r21
	ldws		-16(0,%r30),%r20
	sub		%r24,%r21,%r22
	subb		%r25,%r20,%r19
	comib,= 	0,%r19,L$2
	ldo		-64(%r30),%r30

	add		%r22,%r23,%r22
	ldo		-1(%r28),%r28
	.label	L$2
	bv		0(%r2)
	stws		%r22,0(0,%r26)

	.exit
	.procend



--lCAWRPmW1mITcIfM
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="udiv-qrnnd.diff"

--- udiv-qrnnd.S.orig	Thu May 31 03:14:12 2001
+++ udiv-qrnnd.S	Sat Jan  5 23:27:02 2002
@@ -51,8 +51,11 @@
 
 	stws		%r25,-16(0,%r30)	; n_hi
 	stws		%r24,-12(0,%r30)	; n_lo
-	ldil		L'L$0000,%r19           ; '
-	ldo		R'L$0000(%r19),%r19     ; '
+
+	stw             %r19,-32(%r30)
+	addil		LT%L$0000,%r19
+	ldw		RT%L$0000(%r1),%r1
+	ldw		0(%r1), %r19
 	fldds		-16(0,%r30),%fr5
 	stws		%r23,-12(0,%r30)
 	comib,<=	0,%r25,L$1

--lCAWRPmW1mITcIfM--



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From: Sven Cronenberg <sven.cronenberg@web.de>
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Subject: [parisc-linux] PALinux on HP9000/735-125
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I installed PALinux 0.93 on my HP9000/735 running hat 125Mhz. I use
a SCSI Disk connected to the narrow SCSI canel and the CRX48z
graphics system.

Im using kernel version 2.14.16-pa24 and updated the debian packages like
mentioned in the 0.9.3. errata section today.

Some questions:
- I tried execessing the framebufferdevice. 'fbset' report '/dev/fb0: no 
such device'
  though the STI console works fine as a text-console. Whats the reasion 
for that error?
  Can I currently use the framebuffer device on the HP9000/735?
- has someone been able to make the 100mbit EISA-ethernet-card 3c597 work
  in the HP9000/735 under Linux?
- can I enable a german keymap for the HIL keyboard (trying to do this 
during the
  installation made the keyboard totaly unusable so I had to reboot )?
- is the HIL mouse still unsupported or is there a patch or so to make 
it work?


But inspite of all these problems:
Nice work. It's great to see my PARISC Box running a free operating 
system instead
the obsolute HPUX 10.20.


Sven




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From: "Bjoern A. Zeeb" <bzeeb+hplinux@zabbadoz.net>
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Subject: Re: [parisc-linux] LED blinking ;-(
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On Sun, 6 Jan 2002, Helge Deller wrote:

> On Sunday 06 January 2002 17:33, Bjoern A. Zeeb wrote:
>
> > ... can one change this to a constant on ? - or at least not blinking
> > that frequent or in a radom intervall ?
>
> I assume you talk about the "Heartbeat LED" with which we blink in the
> same frequency as a heart. That's also the behaviour under HP/UX.

don't know. only seen a hp/ux once on that machine ;-)

> and change it with one of the following commands:
> pa64:~# echo "0 1 1" > /proc/pdc/led
> turns off only the heartbeat LED,

Ahh :-)) It's on now. No more blinking.
Much better like this and the machine can live where it is :-)

Thanks a lot.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/





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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] PALinux on HP9000/735-125
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Hi Sven,

On Sunday 06 January 2002 18:42, Sven Cronenberg wrote:
> I installed PALinux 0.93 on my HP9000/735 running hat 125Mhz. I use
> a SCSI Disk connected to the narrow SCSI canel and the CRX48z
> graphics system.
>
> Im using kernel version 2.14.16-pa24 and updated the debian packages like
> mentioned in the 0.9.3. errata section today.
>
> Some questions:
> - I tried execessing the framebufferdevice. 'fbset' report '/dev/fb0: no
> such device'
>   though the STI console works fine as a text-console. Whats the reasion
> for that error?
>   Can I currently use the framebuffer device on the HP9000/735?

Try a newer kernel. It might work starting with kernel 2.4.17-pa2 and above.

> - has someone been able to make the 100mbit EISA-ethernet-card 3c597 work
>   in the HP9000/735 under Linux?

Sorry, no idea.

> - can I enable a german keymap for the HIL keyboard (trying to do this
> during the
>   installation made the keyboard totaly unusable so I had to reboot )?

You might want to write a script with setkeycodes.
Search the archives, I think I once sent such a script.

> - is the HIL mouse still unsupported or is there a patch or so to make
> it work?

Still unsupported.

Helge



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On many PARISC Systems there is still no X-Windows
support or X-Windows has to access the graphics card
via the framebuffer device.

I wonder if there could be a chance to get the X-Server
from HPUX working under PALinux. Would the HPUX
compatiblity be good enough to have a chance whith
that?

Perhaps the suggestion sounds a bit unconventional but
for example many people running NETBSD on the
680x0 based HP-Workstations have made good experiences
with that. For example I am running a HP9000/425
und NETBSD 1.5 but because the HP300 port of
XFree is slow and buggy, I use the Xserver from
HPUX 9.


SVen




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On Sun, Jan 06, 2002 at 06:42:26PM +0100, Sven Cronenberg wrote:
> - I tried execessing the framebufferdevice. 'fbset' report '/dev/fb0: no 
> such device'
>   though the STI console works fine as a text-console. Whats the reasion 
> for that error?

crx48z is untested, so we don't try to use it in framebuffer mode. There
is a check in drivers/video/stifb.c which refuses untested cards (search
for Hack). Just remove that check and see what happens.

>   Can I currently use the framebuffer device on the HP9000/735?

if you build your own kernel with the check removed, it might work.

> - has someone been able to make the 100mbit EISA-ethernet-card 3c597 work
>   in the HP9000/735 under Linux?

IMHO no EISA card will work at the moment. During the weekend I tried
to get an Adapatec 1742 card going in my B132, and the problem is,
that the pdc doesn't initialize EISA cards. Looks like that is done
by HPUX. So before any EISA cards will work, we need something like 
that for Linux, too.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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> I'ved filed a possible patch for this in the bug report, but I'm not
> 100% convinced I understand this correctly. Can someone please take a
> look and let me know? 

The patch needs to be revised.  You can't use r19 as a scratch register
in PIC mode.  There are several places where it is used in the routine.
Maybe you use can use r1 in its place.

> --- udiv-qrnnd.S.orig	Thu May 31 03:14:12 2001
> +++ udiv-qrnnd.S	Sat Jan  5 23:27:02 2002
> @@ -51,8 +51,11 @@
>  
>  	stws		%r25,-16(0,%r30)	; n_hi
>  	stws		%r24,-12(0,%r30)	; n_lo
> -	ldil		L'L$0000,%r19           ; '
> -	ldo		R'L$0000(%r19),%r19     ; '
> +
> +	stw             %r19,-32(%r30)
> +	addil		LT%L$0000,%r19
> +	ldw		RT%L$0000(%r1),%r1

Change following fldds insn to use r1, or change destination register in
the above to some other caller saved register and the fldds insn to match.

> +	ldw		0(%r1), %r19

Wrong.  This would load 0x43f00000 into r19.

Finally, you should put the data in the data section.  There might be a
problem accessing data in the code section with LT% (RT%) because LT%
is "LR% value offset of data linkage slots from linkage table pointer (r19)".

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> 
> > - has someone been able to make the 100mbit EISA-ethernet-card 3c597
work> >   in the HP9000/735 under Linux?
> 
> IMHO no EISA card will work at the moment. During the weekend I tried
> to get an Adapatec 1742 card going in my B132, and the problem is,
> that the pdc doesn't initialize EISA cards. Looks like that is done
> by HPUX. So before any EISA cards will work, we need something like 
> that for Linux, too.
> 

I was trying to get EISA cards working a while ago. The basic problem is,
as Thomas indicated, that the EISA cards need to be configured by a
configuration utility before you can use them. HPUX has a utility called
eisa_config, but there is no equivalent in Linux. Seems all other EISA
platforms (i386, alpha, mips) can be configured by booting a diskette, so
nobody bothered with a linux version yet. 

I think it should work to boot HPUX, get the correct EISA .cfg file and
use the eisa_config utility. The configuration is actually stored in an
eeprom, so it's not tied to the OS. I can't test this though as the only
HPUX CDs I have are too old for the machine.

Another option may be to run the utility on Linux, tried that once but it
complained it could not access /dev/eeprom. A bit scary too, if something
goes wrong one could end up with a corrupt eeprom.... 

	Christian 



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On Sun, Jan 06, 2002 at 01:34:32PM -0800, Christian Suder wrote:
> I think it should work to boot HPUX, get the correct EISA .cfg file and
> use the eisa_config utility. The configuration is actually stored in an

but that's not enough. I did that and setup the card with HPUX, but it's
still unconfigured, when Linux finds it. The .cfg describes how to
configure the different card parameters, eisa_config puts the selected
params to a nvram, and some other part does the real card poking
during kernel startup. Other platforms have that card poking stuff
included into the firmware.

It isn't a big deal to do the card setup itself, because .cfg includes
everything needed. It's more a problem of getting that information
during the kernel startup. If we know the nvram setup and how stuff
gets put there, we could read that and do the card setup from within
the Linux kernel. But I haven't found anything about that, yet.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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Just as a mostly offtopic note you may well be able to get some help with
this (or loan out some help) to the mips port.  Some SGI systems (SGI I2
comes to mind) have EISA slots, and I suspect suffer from the same
problem, it's also possible that SGI has come up with a workaround for it,
so you'd have to get in touch with someone in the know.
	Nick

On Sun, 6 Jan 2002, Thomas Bogendoerfer wrote:

> On Sun, Jan 06, 2002 at 01:34:32PM -0800, Christian Suder wrote:
> > I think it should work to boot HPUX, get the correct EISA .cfg file and
> > use the eisa_config utility. The configuration is actually stored in an
> 
> but that's not enough. I did that and setup the card with HPUX, but it's
> still unconfigured, when Linux finds it. The .cfg describes how to
> configure the different card parameters, eisa_config puts the selected
> params to a nvram, and some other part does the real card poking
> during kernel startup. Other platforms have that card poking stuff
> included into the firmware.
> 
> It isn't a big deal to do the card setup itself, because .cfg includes
> everything needed. It's more a problem of getting that information
> during the kernel startup. If we know the nvram setup and how stuff
> gets put there, we could read that and do the card setup from within
> the Linux kernel. But I haven't found anything about that, yet.
> 
> Thomas.
> 
> -- 
> Crap can work. Given enough thrust pigs will fly, but it's not necessary a
> good idea.                                 [ Alexander Viro on linux-kernel ]
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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Trying to install Debian on the machine:

- trying to boot from the network, I get:

Main Menu: Enter command or menu > bo pri
Interact with IPL (Y, N, or Cancel)?> y

Booting... 
Network Station Address 00306e-132574
System IP Address 192.168.42.183
Server IP Address 192.168.42.5

Boot IO Dependent Code (IODC) revision 2

IPL error: bad LIF magic.

************* SYSTEM ALERT **************
SYSTEM NAME: gsphppa
DATE: 01/07/2002 TIME: 02:24:50
ALERT LEVEL: 6 = Boot possible, pending failure - action required

REASON FOR ALERT
SOURCE: 8 = I/O 
SOURCE DETAIL: 6 = disk   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         ON        ON         ON
LED State: Boot Failed.  Running non-OS code.  Non-critical error detected.
Check Chassis and Console Logs for error messages.

0x00000060860010C0 00000000 00000000 - type  0 = Data Field Unused
0x58000860860010C0 00006600 07021832 - type 11 = Timestamp 01/07/2002 02:24:50
A: ack read of this entry - X: Disable all future alert messages

the changelog on the bootp/tftpboot server shows:

Jan  7 03:26:00 gate bootpd[25080]: recvd pkt from IP addr 0.0.0.0
Jan  7 03:26:00 gate bootpd[25080]: bootptab mtime: Mon Jan  7 03:25:27 2002
Jan  7 03:26:00 gate bootpd[25080]: reading new "/etc/bootptab"
Jan  7 03:26:00 gate bootpd[25080]: read 2 entries (2 hosts) from "/etc/bootptab"
Jan  7 03:26:00 gate bootpd[25080]: request from Ethernet address 00:30:6E:13:25:74
Jan  7 03:26:00 gate bootpd[25080]: found 192.168.42.183 (hppa)
Jan  7 03:26:00 gate bootpd[25080]: bootfile="/tftpboot/palinux"
Jan  7 03:26:00 gate bootpd[25080]: vendor magic field is 99.130.83.99
Jan  7 03:26:00 gate bootpd[25080]: sending reply (with RFC1048 options)
Jan  7 03:26:00 gate bootpd[25080]: setarp 192.168.42.183 - 00:30:6E:13:25:74
Jan  7 03:26:02 gate in.tftpd[28213]: connect from hppa.local
Jan  7 03:26:02 gate tftpd[28214]: tftpd: trying to get file: /tftpboot/palinux 

Tried this with the lifimage from woody/main (2001-12-19) and the
lifimage from parisc-linux.org (2001-12-26), checked md5sums after
downloading.

Yesterday, I borrowed an external CD-ROM and tried to boot from a
CD-ROM (burnt the ISO image). Now getting:

bo 0/0/2/0.3
Interact with IPL (Y, N, or Cancel)?> y

Booting... 
Failed to initialize.

ENTRY_INIT 
Status = -3

00000000 FFFFFFFD 00000000 00000000 00000000 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
00000000 00000000 00000000 00000012 00000000 00000000 00000000 00000000 
00000000 454E4841 00000000 00000000 00000000 00000000 00000000 454E4841 
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
00000000 00000400 00000000 00000000 00000000 00000000 00000000 00000000 

Failed to initialize.


Any hints how to start/continue?

Thanks, Matthias



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"Carlos O'Donell Jr." wrote:
> Cross-Compiler HOWTO at:
> 
> http://www.baldric.uwo.ca/HOWTO/PARISC-Linux-XC-HOWTO.html

I've replicated those pages so they are just a "drop in"
(only need to be renamed from *.html to *.x)...but I didn't
fix the navigavtion bar mess completely....The various Build
HOW-TOs will show up in the navigation bar.

thanks Carlos!
grant



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Subject: Re: [parisc-linux] installation problems on an A500
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Matthias Klose wrote:
> Main Menu: Enter command or menu > bo pri
> Interact with IPL (Y, N, or Cancel)?> y
> 
> Booting... 
> Network Station Address 00306e-132574
> System IP Address 192.168.42.183
> Server IP Address 192.168.42.5

bootp is working.

> Boot IO Dependent Code (IODC) revision 2
> 
> IPL error: bad LIF magic.

The image bootp got was not a LIF image.

The easiest way to build a bootable LIF image is to
have both linux/ and palo/ source trees from parisc-linux CVS.
(or ftp site). Then "make palo" from linux source tree.
Resulting LIF image is in palo/lifimage.

I don't think we have any lifimages on the ftp site
with recent kernels.

grant



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Grant Grundler writes:
> > Boot IO Dependent Code (IODC) revision 2
> > 
> > IPL error: bad LIF magic.
> 
> The image bootp got was not a LIF image.
> 
> The easiest way to build a bootable LIF image is to
> have both linux/ and palo/ source trees from parisc-linux CVS.
> (or ftp site). Then "make palo" from linux source tree.
> Resulting LIF image is in palo/lifimage.
> 
> I don't think we have any lifimages on the ftp site
> with recent kernels.

extracted from ftp://ftp.parisc-linux.org/cd-images/palinux-0.9.3.iso

and

http://http.us.debian.org/debian/dists/woody/main/disks-hppa/3.0.18-2001-12-21/



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Hi Everyone,

thought I'd give mpg321 a try on my 715/64 after installing the .9.3
release.  The playback is very slow.  CPU useage appeared to be about 33%,
so it doesn't appear to be taxing it.

The mp3's are encoded at 44khz 128bit.

Would this box have a problem in general with running this program, or is
that I just apt-get install and that's it and I now need to tweak things?

Are these sorts of questions even on topic for this list?

Pete






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Hi

> thought I'd give mpg321 a try on my 715/64 after installing the .9.3
> release.  The playback is very slow.  CPU useage appeared to be about 33%,
> so it doesn't appear to be taxing it.
> 
I had to use mpg321 -o esd to make it work on my 715/75. Takes more CPU-Time but
works for me.

greetings
Wolfgang





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Subject: Re: [parisc-linux] mpg321 on 715/64?
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On Monday 07 January 2002 11:13, Peter Lavender wrote:
> Hi Everyone,
>
> thought I'd give mpg321 a try on my 715/64 after installing the .9.3
> release.  The playback is very slow.  CPU useage appeared to be about 33%,
> so it doesn't appear to be taxing it.
>
> The mp3's are encoded at 44khz 128bit.
>
> Would this box have a problem in general with running this program, or is
> that I just apt-get install and that's it and I now need to tweak things?

Get yourself the latest kernel (>= 2.4.17-pa5) and update to the latest
mpg321 and it will work perfectly on your machine.
I tested it myself on my 715/64.

> Are these sorts of questions even on topic for this list?

Yes

> Pete

Helge



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Subject: Fwd: Re: [parisc-linux] mpg321 on 715/64?
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CC'ed to to the list too:

----------  Forwarded Message  ----------

Subject: Re: [parisc-linux] mpg321 on 715/64?
Date: Mon, 7 Jan 2002 12:49:00 +0100
From: Helge Deller <helge.deller@sap.com>
To: "Peter Lavender" <plaven@bigpond.net.au>

> > Get yourself the latest kernel (>= 2.4.17-pa5) and update to the latest
> > mpg321 and it will work perfectly on your machine.
> > I tested it myself on my 715/64.
>
> OK..
>
> Now to be a total annoying slacker newbie.. can I apt-get install the
> kernel?

No.

You need to build it yourself. You may download a daily kernel source
snapshot as tarball from ftp://ftp.parisc-linux.org:21/cvs/ (though,
 2.4.17-pa5 isn't  there yet since I committed it yesterday night and this
 directory will be only updated once a day. Wait til' later today or
 tomorrow.), or
check out the sources from CVS (http://cvs.parisc-linux.org).

Helge



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Subject: Re: Fwd: Re: [parisc-linux] mpg321 on 715/64?
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On Mon, Jan 07, 2002 at 12:49:52PM +0100, Helge Deller wrote:
> CC'ed to to the list too:
> 
> ----------  Forwarded Message  ----------
> 
> Subject: Re: [parisc-linux] mpg321 on 715/64?
> Date: Mon, 7 Jan 2002 12:49:00 +0100
> From: Helge Deller <helge.deller@sap.com>
> To: "Peter Lavender" <plaven@bigpond.net.au>
> 
> > > Get yourself the latest kernel (>= 2.4.17-pa5) and update to the latest
> > > mpg321 and it will work perfectly on your machine.
> > > I tested it myself on my 715/64.
> >
> > OK..
> >
> > Now to be a total annoying slacker newbie.. can I apt-get install the
> > kernel?
> 
> No.
> 
> You need to build it yourself. You may download a daily kernel source
> snapshot as tarball from ftp://ftp.parisc-linux.org:21/cvs/ (though,
>  2.4.17-pa5 isn't  there yet since I committed it yesterday night and this
>  directory will be only updated once a day. Wait til' later today or
>  tomorrow.), or
> check out the sources from CVS (http://cvs.parisc-linux.org).

Or look in <ftp://ftp.parisc-linux.org/kernels/32/> in a day or two.
Should find fresh kernel builds there on a daily basis, I think.

Richard




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Subject: Re: Fwd: Re: [parisc-linux] mpg321 on 715/64?
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Helge Deller wrote:
> > Now to be a total annoying slacker newbie.. can I apt-get install the
> > kernel?
> 
> No.
> 
> You need to build it yourself.

I've uploaded 32-2.4.17-pa05.tar.gz to ftp://ftp.parisc-linux.org/kernels/32.

Unless one needs to tune CONFIG* options (ie build more modules),
Paul Bame has been pretty good about uploading vmlinux/System.map/config
tar balls to ftp://ftp.parisc-linux.org/kernels/32. I generally drop
the kernels I build in kernels/c3000 or kernels/a500 (they are different).

grant



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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] FWD: gcc-3.0.3: ICE in reload_cse_simplify on hppa-linux
Date: Mon, 7 Jan 2002 08:31:56 -0800
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--W/nzBZO5zC0uMSeA
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My initial cc to the list was rejected because the attachments were too
large. I'm only attaching the pic .i file here. if anyone wans the
non-pic one to look at pls mail me privately.

----- Forwarded message from Randolph Chung <tausq@debian.org> -----

Date: Sun, 6 Jan 2002 22:54:10 -0800
From: Randolph Chung <tausq@debian.org>
To: gcc-gnats@gcc.gnu.org, debian-gcc@lists.debian.org
Cc: parisc-linux@parisc-linux.org
Subject: gcc-3.0.3: ICE in reload_cse_simplify on hppa-linux
Reply-To: Randolph Chung <tausq@debian.org>

>Submitter-Id:	net
>Originator:	Randolph Chung
>Organization:	Debian
>Confidential:	no
>Synopsis:	ICE in reload_cse_simplify on hppa-linux
>Severity:	serious
>Priority:	medium
>Category:	optimization
>Class:		ice-on-legal-code
>Release:	3.0.3 (Debian testing/unstable)
>Environment:
System: Linux legolas 2.4.16-pa20 #13 Mon Dec 17 21:43:03 PST 2001 parisc64 unknown
Architecture: parisc64

	
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-long-long --enable-nls --without-included-gettext --disable-checking --enable-threads=posix --with-cpp-install-dir=bin hppa-linux
>Description:
When compiling the attached file, gcc fails with the following message:


legolas[8:37] lib% gcc -v -save-temps -DHAVE_CONFIG_H -I. -I. -I..     -O2 -fPIC
 -DPIC -c x509_ASN.c
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0.3/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --p
refix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-
as --with-gnu-ld --with-system-zlib --enable-long-long --enable-nls --without-in
cluded-gettext --disable-checking --enable-threads=posix --with-cpp-install-dir=
bin hppa-linux
Thread model: posix
gcc version 3.0.3
 /usr/lib/gcc-lib/hppa-linux/3.0.3/cpp0 -lang-c -v -I. -I. -I.. -D__GNUC__=3 -D_
_GNUC_MINOR__=0 -D__GNUC_PATCHLEVEL__=3 -D__ELF__ -Dunix -D__hppa__ -Dlinux -D__
ELF__ -D__unix__ -D__hppa__ -D__linux__ -D__unix -D__linux -Asystem=unix -Asyste
m=posix -Acpu=hppa -Amachine=hppa -Amachine=bigendian -D__OPTIMIZE__ -D__STDC_HO
STED__=1 -D__PIC__ -D__pic__ -D_PA_RISC1_1 -DHAVE_CONFIG_H -DPIC x509_ASN.c x509
_ASN.i
GNU CPP version 3.0.3 (cpplib) (hppa)
ignoring nonexistent directory "/usr/hppa-linux/include"
ignoring duplicate directory "."
#include "..." search starts here:
#include <...> search starts here:
 .
 ..
 /usr/local/include
 /usr/lib/gcc-lib/hppa-linux/3.0.3/include
 /usr/include
End of search list.
 /usr/lib/gcc-lib/hppa-linux/3.0.3/cc1 -fpreprocessed x509_ASN.i -mno-space-regs
 -quiet -dumpbase x509_ASN.c -O2 -version -fPIC -o x509_ASN.s
GNU CPP version 3.0.3 (cpplib) (hppa)
GNU C version 3.0.3 (hppa-linux)
        compiled by GNU C version 3.0.3.
/usr/share/misc/bison.simple: In function `yyparse':
/usr/share/misc/bison.simple:761: Insn does not satisfy its constraints:
(insn 7749 7746 59 (set (mem:SI (plus:SI (reg:SI 1 %r1)
                (reg/f:SI 3 %r3)) 272)
        (reg:SI 5 %r5)) 68 {*pa.md:2088} (nil)
    (nil))
/usr/share/misc/bison.simple:761: Internal compiler error in reload_cse_simplify
_operands, at reload1.c:8364
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

The problem does not occur when compiling with -fno-gcse or without -fPIC.

>How-To-Repeat:
	.i for source with and without -fPIC attached. As described
above the problem only occurs with -fPIC ...

>Fix:
	unknown

-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/

----- End forwarded message -----

-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^

--W/nzBZO5zC0uMSeA
Content-Type: application/octet-stream
Content-Disposition: attachment; filename="x509_ASN.pic.i.gz"
Content-Transfer-Encoding: base64

H4sICFx9ODwCA3g1MDlfQVNOLnBpYy5pAO19bXcbt7Hwd/6KTXJOK8p0wl2+R1V6aImWeS2J
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--W/nzBZO5zC0uMSeA--



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Subject: Re: [parisc-linux] Use the X-Server from HPUX und PALinux?
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Sven Cronbenberg wrote:
> I wonder if there could be a chance to get the X-Server
> from HPUX working under PALinux. Would the HPUX
> compatiblity be good enough to have a chance whith
> that?

Well, originally that was the plan John Marvin had but I don't think
he's had time to work on the missing kernel support (ioctl calls for
gfx card drivers). If someone wants to try it and report what's missing,
we might find time to get it working peice meal.  In general, HPUX 32-bit
SOM binary support is in place though no one is regularly testing it.

grant



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From: "Pedot, Wolfgang" <wpedot@harris.com>
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Subject: RE: [parisc-linux] mpg321 on 715/64?
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> Get yourself the latest kernel (>= 2.4.17-pa5) and update to the latest
> mpg321 and it will work perfectly on your machine.
> I tested it myself on my 715/64.
> 
Just tested that myself and it works perfectly..

thanks
Wolfgang



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Sven Cronbenberg writes...

> On many PARISC Systems there is still no X-Windows
> support or X-Windows has to access the graphics card
> via the framebuffer device.

You are aware of the STI framebuffer driver right? You can use that to run X 
on most HP graphics cards. The HPUX Xserver could be much faster but sti-fb is 
currently better than nothing.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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> This page contains links to various useful documents including the 32-bit
> runtime:
> 
> <http://h21007.www2.hp.com/dspp/tech/tech_TechTypeListingPage_IDX/1,1704,10403,00.html>.
> 
> The document itself is here:
> 
> <http://devresource.hp.com/STK/partner/rad_10_20.pdf>.

Maybe copies of these documents could be made accessible from the PA-RISC
LINUX Tech Documentation page as some of these are hard to find.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> > You need to build it yourself. You may download a daily kernel source
> > snapshot as tarball from ftp://ftp.parisc-linux.org:21/cvs/ (though,
> >  2.4.17-pa5 isn't  there yet since I committed it yesterday night and
this
> >  directory will be only updated once a day. Wait til' later today or
> >  tomorrow.), or
> > check out the sources from CVS (http://cvs.parisc-linux.org).
>
> Or look in <ftp://ftp.parisc-linux.org/kernels/32/> in a day or two.
> Should find fresh kernel builds there on a daily basis, I think.

There's a kernel there.  Is this just a drop in  replacement?

While I'm at asking stupid questions, what packages so I need install to
build kernels?   I installed the 0.9.3 release, but make and it's pals are
missing.

Generally I have just installed RH and included the dev stuff as part of the
install.

Thanks,

Pete




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Subject: Re: Fwd: Re: [parisc-linux] mpg321 on 715/64?
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"Peter Lavender" writes...

> There's a kernel there.  Is this just a drop in  replacement?

Those are tarballs containing the kernel and some other stuff. Untar/gz them 
in /boot.

> While I'm at asking stupid questions, what packages so I need install to
> build kernels?

Use dselect or apt-get to install gcc and it's dependencies from the CD or 
from the Debian archive.

> I installed the 0.9.3 release, but make and it's pals are
> missing.

They are on the CD and available in the Debian archive.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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Helge Deller writes...

> CC'ed to to the list too:
> 
> ----------  Forwarded Message  ----------
> 
> Subject: Re: [parisc-linux] mpg321 on 715/64?
> Date: Mon, 7 Jan 2002 12:49:00 +0100
> From: Helge Deller <helge.deller@sap.com>
> To: "Peter Lavender" <plaven@bigpond.net.au>
> 
> > > Get yourself the latest kernel (>= 2.4.17-pa5) and update to the latest
> > > mpg321 and it will work perfectly on your machine.
> > > I tested it myself on my 715/64.
> >
> > OK..
> >
> > Now to be a total annoying slacker newbie.. can I apt-get install the
> > kernel?
> 
> No.

That's not quite right. You can't always apt-get the latest, bleeding edge 
kernel, but there are fairly new, stable kernel-image-* packages for hppa in 
the Debian archive. You can apt-get those and it works as expected.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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installed and all is working well(it'c currently compiling LAM and 
ssh).  two problems:
  it didn't seem to install the termcap.h file, and I'm not sure where 
to find it
  on things which use highliting in curses(dselect) the highliting 
does not appear
thanks again
Aaron
-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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From: =?ISO-8859-1?Q?Thibaut_VAR=C8NE?= <varenet@esiee.fr>
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Hello,

After investigating a bit in an empirical way on the sqrt() function in 
python, I have noticed what seems to be a logical rule as follows:

All integer results (even when tested as X.0) are correct.
For the float numbers (I have only tested the X.X form), the rule looks 
like this:
the result for 0.X numbers is divided by (1/(2*sqrt(2))), ie multiplied 
by 2*sqrt(2)
for 1.X numbers, result is divided by sqrt(2)	(1 integer)
for 2.X and 3.X, divided by 2=(sqrt(2))^2		(2 different integers)
for 4.X -> 7.X, by (sqrt(2))^3				(4 different integers)
for 8.X -> 15.X, by 4=(sqrt(2))^4			(8 different integers)
for 16.X -> 31.X, by (sqrt(2))^5				(16 different integers)
for 32.X, by 8...

I have not tested further.

I have made the comparisons using a 10 digits (12 digits precision) 
calculator (as I had nothing else by this time).

I hope this will be useful for fixing the bug.


Thibaut
PA/Linux ESIEE Team




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On 2002.01.06 23:29 Thomas Bogendoerfer wrote:
> but that's not enough. I did that and setup the [EISA-] card with HPUX, but
> it's still unconfigured, when Linux finds it. 

I think that the PDC only initialize a card that is used for booting. I also
think that Matthew Wilcox had a HP 100MB Ethernet interface up and running a 
while ago. (The PDC might have initialzed that board when it searched for boot
devices.)
Another problem with EISA boards currently, is that most of them are bus-masters
and the current EISA support lacks the busmatering and DMA bits.

> The .cfg describes how to
> configure the different card parameters, eisa_config puts the selected
> params to a nvram, and some other part does the real card poking
> during kernel startup. Other platforms have that card poking stuff
> included into the firmware.

I have started an eeprom driver a while ago, and I started to try to decode the 
EISA parts of the EEPROM. I have about half of it figured out I think, but the
other half seems to be somewhat hard.

I looked a doing a parser for the CFG files, but it turns out that there are a
lot of options and stuff. Even binary code overlays that are supposed to be
loaded and executed by the ECU (EISA configuration utility) exists. Adaptec 
uses one for the AHA-274x. Not suppoered by HPUX, though.

/Daneil

-- 



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On Mon, Jan 07, 2002 at 03:10:38PM -0500, Aaron Macks wrote:
> installed and all is working well(it'c currently compiling LAM and 
> ssh).  two problems:
>   it didn't seem to install the termcap.h file, and I'm not sure where 
> to find it
>   on things which use highliting in curses(dselect) the highliting 
> does not appear

$ dpkg -S /usr/include/termcap.h
libncurses5-dev: /usr/include/termcap.h

Holger
-- 
Holger Grothe  (Email: grothe@mathematik.tu-darmstadt.de)
Fachbereich Mathematik, TU Darmstadt



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On Tue, Jan 08, 2002 at 12:34:33AM +0100, Daniel Engstrom wrote:
> I think that the PDC only initialize a card that is used for booting. I also
> think that Matthew Wilcox had a HP 100MB Ethernet interface up and running a 
> while ago. (The PDC might have initialzed that board when it searched for boot
> devices.)

hmm, I had a quick glance over the hp100.c and it looks like the driver
does the eisa config itself. So that would explain why it worked.

> Another problem with EISA boards currently, is that most of them are
>  bus-masters and the current EISA support lacks the busmatering and DMA bits.

that's why I was looking into the problem. I wanted to improve EISA support.

> I have started an eeprom driver a while ago, and I started to try to decode
> the EISA parts of the EEPROM. I have about half of it figured out I think,
> but the other half seems to be somewhat hard.

that's a start. Do you have a patch for your eeprom driver somewhere ?

> I looked a doing a parser for the CFG files, but it turns out that there are a
> lot of options and stuff. Even binary code overlays that are supposed to be
> loaded and executed by the ECU (EISA configuration utility) exists. Adaptec 
> uses one for the AHA-274x. Not suppoered by HPUX, though.

I saw that overlay thing also for the AHA-1742. I just removed it from the
.cfg to get eisa_config running with it.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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"Peter Lavender" wrote:
> > Or look in <ftp://ftp.parisc-linux.org/kernels/32/> in a day or two.
> > Should find fresh kernel builds there on a daily basis, I think.
> 
> There's a kernel there.  Is this just a drop in  replacement?

Yes. Mostly. Just make sure the new kernel has the same name
as the existing kernel. Rename the existing kernel first.
You do not have to run palo unles you want to change kernel
parameters or update the "emergency" kernel on the 0xF0 partition.
(The FAQ has more on kernel boot parameters)

> While I'm at asking stupid questions, what packages so I need install to
> build kernels?   I installed the 0.9.3 release, but make and it's pals are
> missing.

See the "Build" links on www.parisc-linux.org in the navigation bar.

grant



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Subject: Re: [parisc-linux] FWD: gcc-3.0.3: ICE in reload_cse_simplify on hppa-linux
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I can't duplicate the problem with gcc 3.1 under hpux 11.11 or 3.0.3 under
hpux 10.20.

What version of bison are you using?  I suspect that 1.29 may have problems.
I am currently using 1.30.  I also think 1.28 is ok.  I saw one instance
of a problem similar to this with 1.29, although it wasn't on the PA.

If the "parse.c" files in gcc were generated with 1.29, I suggest updating
bison and rebuilding the various "parse" files in the gcc distribution
with the new version of bison.

Dave

> When compiling the attached file, gcc fails with the following message:
> 
> 
> legolas[8:37] lib% gcc -v -save-temps -DHAVE_CONFIG_H -I. -I. -I..     -O2 -fPIC
>  -DPIC -c x509_ASN.c
> Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0.3/specs
> Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --p
> refix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-
> as --with-gnu-ld --with-system-zlib --enable-long-long --enable-nls --without-in
> cluded-gettext --disable-checking --enable-threads=posix --with-cpp-install-dir=
> bin hppa-linux
> Thread model: posix
> gcc version 3.0.3
>  /usr/lib/gcc-lib/hppa-linux/3.0.3/cpp0 -lang-c -v -I. -I. -I.. -D__GNUC__=3 -D_
> _GNUC_MINOR__=0 -D__GNUC_PATCHLEVEL__=3 -D__ELF__ -Dunix -D__hppa__ -Dlinux -D__
> ELF__ -D__unix__ -D__hppa__ -D__linux__ -D__unix -D__linux -Asystem=unix -Asyste
> m=posix -Acpu=hppa -Amachine=hppa -Amachine=bigendian -D__OPTIMIZE__ -D__STDC_HO
> STED__=1 -D__PIC__ -D__pic__ -D_PA_RISC1_1 -DHAVE_CONFIG_H -DPIC x509_ASN.c x509
> _ASN.i
> GNU CPP version 3.0.3 (cpplib) (hppa)
> ignoring nonexistent directory "/usr/hppa-linux/include"
> ignoring duplicate directory "."
> #include "..." search starts here:
> #include <...> search starts here:
>  .
>  ..
>  /usr/local/include
>  /usr/lib/gcc-lib/hppa-linux/3.0.3/include
>  /usr/include
> End of search list.
>  /usr/lib/gcc-lib/hppa-linux/3.0.3/cc1 -fpreprocessed x509_ASN.i -mno-space-regs
>  -quiet -dumpbase x509_ASN.c -O2 -version -fPIC -o x509_ASN.s
> GNU CPP version 3.0.3 (cpplib) (hppa)
> GNU C version 3.0.3 (hppa-linux)
>         compiled by GNU C version 3.0.3.
> /usr/share/misc/bison.simple: In function `yyparse':
> /usr/share/misc/bison.simple:761: Insn does not satisfy its constraints:
> (insn 7749 7746 59 (set (mem:SI (plus:SI (reg:SI 1 %r1)
>                 (reg/f:SI 3 %r3)) 272)
>         (reg:SI 5 %r5)) 68 {*pa.md:2088} (nil)
>     (nil))
> /usr/share/misc/bison.simple:761: Internal compiler error in reload_cse_simplify
> _operands, at reload1.c:8364
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
> 
> The problem does not occur when compiling with -fno-gcse or without -fPIC.
> 
> >How-To-Repeat:
> 	.i for source with and without -fPIC attached. As described
> above the problem only occurs with -fPIC ...
> 
> >Fix:
> 	unknown
> 
> -- 
> Debian Developer <tausq@debian.org>
> http://www.TauSq.org/
> 
> ----- End forwarded message -----
> 
> -- 
>    @..@                                         http://www.TauSq.org/
>   (----)
>  ( >__< )
>  ^^ ~~ ^^
> 
> --W/nzBZO5zC0uMSeA
> Content-Type: application/octet-stream
> Content-Disposition: attachment; filename="x509_ASN.pic.i.gz"
> Content-Transfer-Encoding: base64
> 
> H4sICFx9ODwCA3g1MDlfQVNOLnBpYy5pAO19bXcbt7Hwd/6KTXJOK8p0wl2+R1V6aImWeS2J
> Kkk5SX199qzIpcSKb9klZbmun9/+zOBlF8ACu0tSTtpbpaVFAoOZwWAwGAAD4DurYlvfPtbK
> Lbc9uPz+07eF7yxIuF1s1rPQnS7W3999a9mQ6NSUVAo49ifThR9GUFUxiYJ8//0Po+ViMr0V
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> EjhVRBInR7QVElVJrUsW2/q6EvlCySxmVF5Cfx2zEpa0aEThYD5WYb6yDhKysDXyccwcQYq3
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> 
> --W/nzBZO5zC0uMSeA--
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> What version of bison are you using?  I suspect that 1.29 may have problems.
> I am currently using 1.30.  I also think 1.28 is ok.  I saw one instance
> of a problem similar to this with 1.29, although it wasn't on the PA.

i'm already using 1.30 unfortunately.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Did anyone notice the amazing speed at the mem speed
measure? it's about 1.8 GB/sec(?) on my 715/80.
Maybe 1.8GB/sec is wrong, but it' *really* fast.
I will post mey dmesg later on, I'm currently at work.
Perhaps the wrong method is choosen.


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From: Enrik Berkhan <Enrik.Berkhan@planb.de>
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Subject: [parisc-linux] any info on 710/Bushmaster Audio available?
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Hi,

I'd like to make the audio part of my 710 usable, even if it's only
'voice quality' according to the LASI docs.

Actually, I can't find much documentation for this part. It's
mentioned in the LASI docs, but no details of course. I understand
that it should be in the "Cobra/Coral I/O ESR", that is not available
yet(?). I found some mails in the list archive promising to make it
available in 1999 ;-) Is there a status? Maybe something like the
"Vivace ESR" would be helpful, too.

Thanks,
Enrik
-- 
Enrik Berkhan                                         plan b. GmbH
                                                      Rppurrer Strae 4
+49-721-388582 (voice)                                76137 Karlsruhe
+49-721-388581 (fax)                                  Germany



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> I'd like to make the audio part of my 710 usable, even if it's only
> 'voice quality' according to the LASI docs.
>
> Actually, I can't find much documentation for this part. It's
> mentioned in the LASI docs, but no details of course. I understand
> that it should be in the "Cobra/Coral I/O ESR", that is not available
> yet(?). I found some mails in the list archive promising to make it
> available in 1999 ;-) Is there a status? Maybe something like the
> "Vivace ESR" would be helpful, too.

The hardball ERS that is available is almost an exact duplicate of the
Cobra/Coral ERS, i.e. not that much changed. Neither document provides
any info on the 705/710 audio interface. The Vivace ERS is the document
that describes the first implementation of CD quality audio. That
functionality was incorporated into LASI in later machines, and the
interface is essentially the same. That document would not be helpful
for the 705/710 either.

The audio codec on the 705/710 is a Siemens PSB 2160. I tried looking
on their website for information, and the only info I found was that
it was replaced by the PSB 2161. I don't know if you can still find
documentation on that old chip, or if the PSB 2161 is programmatically
similar. I cannot currently locate my printed documentation on the
chip.

The interface to the PSB 2160 is the same as what was developed for
"Woody", otherwise known as a 425e, which was a 68040 based HP
workstation. I've enclosed what little documentation exists for
the 68040 interface. If you can find documentation on the PSB 2160
then you should be able to use the following information to write
a driver.

Note that what is meant by "voice" quality is that the codec only
supports a fixed sampling rate if 8 Khz. Note that this interface
does not support dma, it is a PIO device only.

John Marvin
jsm@fc.hp.com

-----

	Woody Audio Interface
	---------------------

Below find the preliminary software model for the Woody audio interface.
This interface incorporates an inbound FIFO, an outbound FIFO, and a
control FIFO that interfaces to a CODEC (coder/decoder).  The CODEC is a
SIEMENS PSB2160 that contains an 8kHz sampling rate D/A, A/D, programable
input/ouput gain and filter coefficients.  The converters will
generate/accept uLaw ("MULAW") or Alaw 8 bit data or 16 bit linear data (I
beleive that the converters only have about 13 significant bits) The CODEC
also has a DTMF (dual tone multiple frequency) generator, a tone
generator, and a ringing generator and software selectable internal
speaker or headphones.

Basically there are three communications channels which can be fully
overlapped.  They are the inbound and outbound data and the control
channels.  The inbound data channel is digitized microphone input and has
a 128 byte FIFO although software should not depend on this size.  The
outbound data channel drives either the internal speaker or the headphones
jack, this channel also has a 128 byte FIFO.  The control channel is
outbound only and controls the operation of the CODEC.  Control commands
are 1 to 9 bytes in length and must be sent to the CODEC in successive
125us Frames.  The control channel has a 16 byte FIFO, and software should
guarantee that an entire command is written to the FIFO before the FIFO
drains -- this shouldn't be too hard since it drains at an 8k byte/s rate.
The controller will automatically send a NOP (FF) command to the CODEC if
there is nothing in the control FIFO, and will send a zero (00) data byte
to the CODEC if there is nothing in the outbound FIFO.

Register 1 (offset 1 from base address): byte

	read:	ID:	0x13 (19)	This is the card ID
	write:	reset.			This will reset the FIFOs and machine.

Register 3 (offset 3): byte

	read:	Status:	bit 7 (MSB)	IE (r/w) interrupt enable
			bit 6  		IR (r)interrupt request. 
			bit 5,4         IL1,IL0; interrupt level (1,1;level 6)
			bit 3		16 bit mode if set (1), 8 bit otherwise
			bit 2		Control channel enable if set (1)
			bit 1           0
			bit 0		Inbound channel enable if set (1)
					 Clears inbound FIFO if clear (0)

			Power-up/reset value is 0x30.

	write:	Status:	bit 7 (MSB)	IE (r/w) interrupt enable
			bit 6  		readonly
			bit 5,4		readonly
			bit 3		16 bit mode
			bit 2		control channel enable
			bit 1           readonly
			bit 0		inbound channel enable

Register 5 (offset 5): byte

	read:	intr  :	bit 7 (MSB)	Outbound FIFO empty interrupt enable.
			bit 6 		Control FIFO empty interrupt enable.
			bit 5  		Outbound FIFO less than half full
					 interrupt enable.
			bit 4  		Inbound FIFO more than half full
					 interrupt enable.
			bit 3  		Outbound FIFO empty interrupt request.
			bit 2  		Control FIFO empty interrupt request.
			bit 1  		Outbound FIFO less than half full
					 interrupt request.
			bit 0  		Inbound FIFO more than half full
					 interrupt request.

	write:	intr  :	bit 7 (MSB)	Outbound FIFO empty interrupt enable.
			bit 6 		Control FIFO empty interrupt enable.
			bit 5  		Outbound FIFO less than half full
					 interrupt enable.
			bit 4  		Inbound FIFO more than half full
					 interrupt enable.
			bit 3  		readonly
			bit 2  		readonly
			bit 1  		readonly
			bit 0  		readonly

Register 7 (offset 7): byte, readonly

	read:	intr  :	bit 7 (MSB)	Undefined
			bit 6 		Undefined
			bit 5  		Control FIFO full
			bit 4  		Control FIFO empty
			bit 3  		Outbound FIFO full
			bit 2  		Outbound FIFO empty
			bit 1  		Inbound FIFO full
			bit 0  		Inbound FIFO empty

Register 9 (offset 9): byte

	read:	inbound Data:		Read data from inbound FIFO
					 (must be enabled and not EMPTY)
	write:	outbound Data:		Write data to outbound FIFO
					 (must not be FULL)

Register 11 (offset 11): byte, writeonly

	write:  control Data:           Write data to control FIFO
					 (must not be FULL)


The interrupts asserted when the FIFO is less than half full on outbound
transfers or greater than half full on inbound transfers have 16 byte
resolution -- 64 bytes +/- 16 bytes is half-full/empty.




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Subject: Re: [parisc-linux] any info on 710/Bushmaster Audio available?
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On Tue, Jan 08, 2002 at 05:30:04AM -0700, John Marvin wrote:
> The audio codec on the 705/710 is a Siemens PSB 2160. I tried looking
> on their website for information, and the only info I found was that
> it was replaced by the PSB 2161. I don't know if you can still find
> documentation on that old chip, or if the PSB 2161 is programmatically
> similar. I cannot currently locate my printed documentation on the
> chip.

I have a dead tree version of the datasheet here and compared
it to the PSB2161. The internal registers are different. The PSB2160
has less features, so some of the config bits of the PSB2161 aren't
available and common bits are sometimes shifted around.

> The interface to the PSB 2160 is the same as what was developed for
> "Woody", otherwise known as a 425e, which was a 68040 based HP
> workstation. I've enclosed what little documentation exists for
> the 68040 interface. If you can find documentation on the PSB 2160
> then you should be able to use the following information to write
> a driver.

yes, looks doable. I'm not sure, whether I have the time to it myself,
but I could help people with questions about the PSB2160 config registers
(I'll write the register bits down and put it online during the next days).

Thomas.




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John,

On Tue, Jan 08, 2002 at 05:30:04AM -0700, John Marvin wrote:
> The audio codec on the 705/710 is a Siemens PSB 2160. I tried looking
> on their website for information, and the only info I found was that
> it was replaced by the PSB 2161. I don't know if you can still find
> documentation on that old chip, or if the PSB 2161 is programmatically
> similar. I cannot currently locate my printed documentation on the
> chip.

Tanks for the information, anyway. Helps a lot.

Enrik
-- 
Enrik Berkhan                                         plan b. GmbH
                                                      Rppurrer Strae 4
+49-721-388582 (voice)                                76137 Karlsruhe
+49-721-388581 (fax)                                  Germany



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On Tue, Jan 08, 2002 at 02:44:36PM +0100, Thomas Bogendoerfer wrote:
> [PSB216 audio]
> yes, looks doable. I'm not sure, whether I have the time to it myself,
> but I could help people with questions about the PSB2160 config registers
> (I'll write the register bits down and put it online during the next days).

Thanks in advance.

Enrik
-- 
Enrik Berkhan                                         plan b. GmbH
                                                      Rppurrer Strae 4
+49-721-388582 (voice)                                76137 Karlsruhe
+49-721-388581 (fax)                                  Germany



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> > What version of bison are you using?  I suspect that 1.29 may have problems.
> > I am currently using 1.30.  I also think 1.28 is ok.  I saw one instance
> > of a problem similar to this with 1.29, although it wasn't on the PA.
> 
> i'm already using 1.30 unfortunately.

Then, I suggest trying with gcc-3.1 (prerelease).  It has quite a few
bug fixes that 3.0.3 doesn't have although it hasn't been tested much
on linux.  C and C++ definitely are in better shape.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Hi!
I have a HP 712/60 sitting in my room doing nothing, it has no memory so i'm debating whether or not i should get it up and running.
Basicly, anybody know what memory it uses (i assume ecc 72-pin simm) and anybody know what it performs like or whats supported in linux (sound/gfx/lan)
Thanks for any help ;P

--jbit


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Help with the following problem would be much appreciated:

I boot parisc-linux from cd-drive and everything goes fine except the HD
is not detected. All other hardware is correctly detected. The
installation program recommends passing args to boot: or load
appropriate module.

Has anyone experienced this kind of problem?
Thanks
Sorin





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From: Jaap Boender <jaapb@kerguelen.org>
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Hi,

I've got a 712/60, on which I'd like to install Linux. So, being of simple
mind, I downloaded the palinux-0.9.3-base ISO image and set up DHCP so the
712 boots this file. This works quite well - up to a point. The image boots,
and the installer starts; however, when it wants to install a kernel and
drivers onto the hard drive, it hangs. I can restart the installer with Ctrl-C
at this point, but I can't get past this point in the installation. 

Manually unpacking the drivers.tgz file from a shell gives the same result.

So, am I doing something wrong, or is it simply lack of memory (the box only
has 16 Mb), or should I just boot another way? I'd appreciate any help.

Yours,

  Jaap Boender
---
Coffee, Coffee mu ich haben,
Und wenn jemand mich will laben,
Ach, so schenkt mir Coffee ein!
  -- J.S. Bach / Picander, Kaffee-Kantate



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Subject: Re: [parisc-linux] Installing from network
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On Tue, Jan 08, 2002 at 05:47:39PM +0100, Jaap Boender wrote:
> Hi,
> 
> I've got a 712/60, on which I'd like to install Linux. So, being of simple
> mind, I downloaded the palinux-0.9.3-base ISO image and set up DHCP so the
> 712 boots this file. This works quite well - up to a point. The image boots,
> and the installer starts; however, when it wants to install a kernel and
> drivers onto the hard drive, it hangs. I can restart the installer with Ctrl-C
> at this point, but I can't get past this point in the installation. 
> 
> Manually unpacking the drivers.tgz file from a shell gives the same result.
> 
> So, am I doing something wrong, or is it simply lack of memory (the box only
> has 16 Mb), or should I just boot another way? I'd appreciate any help.

You want to boot a file known as a lifimage, not the ISO.  The ISO is a
CD image.  If you burn a CD from the image you should find 'lifimage'
somewhere like

dists/woody/main/disks-hppa/current/lifimage

Alternatively you could grab that file from somewhere like

<http://http.us.debian.org/debian/dists/woody/main/disks-hppa/current/lifimage>

Personally I'd burn that ISO, or loopback mount it, and export it from
a server via http or nfs.

16MB is rather small though, so it might be that you won't be
successful without adding more memory.  I'd guess that it would run ok
once installed, but the installer needs 6MB for a ramdisk.  Make sure you
define a swap partition and that it is activated.

Richard




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Subject: [parisc-linux] RAID - speed measure
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It's of course not mem speed measure as mentioned before in the forum :-)
It's RAID - spped measure. stupid fault.

raid5: measuring checksumming speed
   8regs     : 77961.200 MB/sec
   8regs_prefetch:    56.400 MB/sec
   32regs    :    94.800 MB/sec
   32regs_prefetch:    95.200 MB/sec
raid5: using function: 8regs (77961.200 MB/sec)

But anyway, it's strange. Perhaps only a missing division /1000.



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> Hi!
> I have a HP 712/60 sitting in my room doing nothing, it has no memory so i'm debating whether or not i should get it up and running.
> Basicly, anybody know what memory it uses (i assume ecc 72-pin simm) and anybody know what it performs like or whats supported in linux (sound/gfx/lan)
> Thanks for any help ;P
> 
> --jbit
>

Jbit,

Our 712/60 works marvels! It's a great little box and I used to do
daily glibc / gcc / linux compiles on the box (mind you it would take
about 8 hrs to compile glibc).

The fb code works great on the 712/60... the first time I saw the
penguin in the conrner of the bootup screen made me smile :)

ditto for lan (AUI/RJ45) ... works great.

Sound? Never tried. Haven enough MP3 playing boxes in the office ^__^;;

c.



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Subject: [parisc-linux] 53c700 SCSI Driver Problems ~?= 712/80 and Quantum Fireball 1050MB HD problem
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> Help with the following problem would be much appreciated:
> 
> I boot parisc-linux from cd-drive and everything goes fine except the HD
> is not detected. All other hardware is correctly detected. The
> installation program recommends passing args to boot: or load
> appropriate module.
> 
> Has anyone experienced this kind of problem?
> Thanks
> Sorin
>

Can you try to get a snip of text printed by the SCSI driver?

I seem to be having some issues with the newer SCSI driver
(October merge) on my 715/50's ... I'll post my info tommorow.

In particular (0.9.3 Install with apt-get updates):

Kernel 2.4.16-pa21 (Will be updating tommorow)

- Most of the drives I put into the box refuse to spinup.
	= E.g. "spinning up....." until timeout

- Boxes with 525MB HP Quantum ProDrive HD's lockup solid in
  mke2fs while writing superblocks (always happens).

- Drives that do spinup are reported as 0MB's because the 
  sector size was invalid (4GIG Barracudas)

- Random lockups accessing the drive on 712/50's that 
  seem to have functional drives. Usually manifested as
  a solid lock at a Random time during Init scripts.
  (I know cause I ran init=/bin/sh and straced evertyhing)

Most of our cluster is running 2.4.9-pa25 <= Very Stable.

Mind you, the latest kernel runs fine on our 712/60. 
And since the problem _looks_ to be SCSI related...
that's what I'm going to try investigate.

=-= Help investigating =-=

I'm wondering if I'll need to get kgdb??
Or something other than serial?
The box _locks_ solid, no response, and I'm not quite sure
how to diagnose that.

c.




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>
>
>
>Sound? Never tried. Haven enough MP3 playing boxes in the office ^__^;;
>
Works now with recent patch of Harmony as soon as you don't compilee 
gcc/libc/linux at the same time.

Matthieu

>
>c.
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>






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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] PIC assembly
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"John David Anglin" wrote:
> > This page contains links to various useful documents including the 32-bit
> > runtime:
> > 
> > <http://h21007.www2.hp.com/dspp/tech/tech_TechTypeListingPage_IDX/1,1704,10
>   403,00.html>.
> > 
> > The document itself is here:
> > 
> > <http://devresource.hp.com/STK/partner/rad_10_20.pdf>.
> 
> Maybe copies of these documents could be made accessible from the PA-RISC
> LINUX Tech Documentation page as some of these are hard to find.

I've been given the OK to link into h21007.www2.hp.com website and promised
the URLs for specific documents wouldn't change (too) suddenly.
I'll add those links in the next couple of days to p-l.org
"Tech Documentation" to those.

grant



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From: Phil Anderson <andersop@neverland.ncssm.edu>
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Subject: Re: [parisc-linux] 712/80 and Quantum Fireball 1050MB HD problem
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To: Sorin Ghinescu <sghinesc@columbus.rr.com>
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two of my 3 712/80's have had this happen. I write this letter from the
3rd working one. I think it's just dead SCSI drives, because on at least 1
of the 2 I have I fail to hear the HDD spin up as the machine powers on.

-phil



On Tue, 8 Jan 2002, Sorin Ghinescu wrote:

> Help with the following problem would be much appreciated:
>
> I boot parisc-linux from cd-drive and everything goes fine except the HD
> is not detected. All other hardware is correctly detected. The
> installation program recommends passing args to boot: or load
> appropriate module.
>
> Has anyone experienced this kind of problem?
> Thanks
> Sorin
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>

-- 
===============================================================================

Phil Anderson
UNIX Systems Administrator
andersop@neverland.ncssm.edu
The_13th_Ewok@hotmail.com

"Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson




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Subject: [parisc-linux] parisc Dump: lkcd port.
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	Hi
I've already ask in the past, if there was a dump driver
for the linux parisc. The answer was no. So, because I've 
litle time for It I've restart this port. Now I've a question
about a function used for Alpha and i386. 
In arch/alpha/kernel/setup.c and arch/i386/mm/init.c, there is
a function called page_is_ram. It seems that this function is 
used by the dump driver to know if a page is a physical page or 
not. So my question is: does this function exist for parisc ?

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Subject: [parisc-linux] loading the dump modules: will taint the kernel.
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	Hi
I've created a modules for the dump driver. When loading the
modules I receive the following message:
#insmod dump
Using /lib/modules/2.4.17-pa3/kernel/drivers/dump/dump.o
Warning: loading /lib/modules/2.4.17-pa3/kernel/drivers/dump/dump.o will taint the kernel: no license

But everything seems okay, the modules is here, everything is here ???
What means this message ?

	thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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In reference to a message from Bruno Vidal, dated Jan 09:
> 	Hi
> I've created a modules for the dump driver. When loading the
> modules I receive the following message:
> #insmod dump
> Using /lib/modules/2.4.17-pa3/kernel/drivers/dump/dump.o
> Warning: loading /lib/modules/2.4.17-pa3/kernel/drivers/dump/dump.o will taint the kernel: no license
> 
> But everything seems okay, the modules is here, everything is here ???
> What means this message ?

Add this, or something similar, to your driver:
MODULE_LICENSE("GPL");

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Bruno Vidal wrote:

> 	Hi
> I've created a modules for the dump driver. When loading the
> modules I receive the following message:
> #insmod dump
> Using /lib/modules/2.4.17-pa3/kernel/drivers/dump/dump.o
> Warning: loading /lib/modules/2.4.17-pa3/kernel/drivers/dump/dump.o will taint the kernel: no license
> 
> But everything seems okay, the modules is here, everything is here ???
> What means this message ?
> 
> 	thanks.
> 
> 

Did you/Are you releasing this module under a GPL license? Then add to 
the source,

MODULE_AUTHOR("James Bottomley");
MODULE_DESCRIPTION("lasi700 SCSI Driver");
MODULE_LICENSE("GPL");
MODULE_PARM(lasi700, "s");

Of course, change the author, description and parameters. See 
include/linux/modules.h for docs, other macros. The other license types 
are listed in there, too.


-- 
____               .:.                 ____
Bryan W. Headley - bheadley@interaccess.com




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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] parisc Dump: lkcd port.
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Bruno Vidal wrote:
> 	Hi
> I've already ask in the past, if there was a dump driver
> for the linux parisc. The answer was no. So, because I've 
> litle time for It I've restart this port.

Oh - excellent!

> Now I've a question
> about a function used for Alpha and i386. 

and mips and mips64.

> In arch/alpha/kernel/setup.c and arch/i386/mm/init.c, there is
> a function called page_is_ram. It seems that this function is 
> used by the dump driver to know if a page is a physical page or 
> not. So my question is: does this function exist for parisc ?

No. I can think of two or three people who should offhand know how
to write this pretty quickly though - one of them is in transit
and the other won't see your mail for a few more hours.

My guess is page_is_ram() for parisc would like something like
the mips or i386 versions but use npmem_ranges (count) and
pmem_ranges[] (table physical page ranges):

/* leveraged from arch/mips/mm/init.c */
static inline int page_is_ram(unsigned long pagenr)
{
        int i;

        for (i = 0; i < npmem_ranges; i++) {
                unsigned long addr, end;

		/* Need to look for holes?
		** parisc doesn't support CONFIG_DISCONTIGMEM (yet?)

                if (pmem_holes[i].start_pfn ...)
                        continue;
		*/

                end = addr = pmem_ranges[i].start_pfn;
                end += pmem_ranges[i].pages;

                if (pagenr >= addr && pagenr < end)
                        return 1;
        }

        return 0;
}

I might be missing some shifting (PAGE_SHIFT) but that should be
easy to figure out.

hth,
grant

ps. I'm very excited to hear you are looking at this again! wohoo!



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This is a multi-part message in MIME format.
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	Hi
First, thanks for your feedback, now the dump modules is working fine.
The system is able to dump. But now I need to modify the tool to retrieve
the dump. But I need bfd and opcode: libbfd.a and libopcode.a. It is part
of the binutil package. But in the last debian package this two librairies
are missing. And on CVS tree, there is no more binutil src. Where can I
find the latest binutil src, or where can I find a binutil package with
this two libraires. Another small problem, when using yacc on parisc
(ie: bison), the result is not the same on a i386 and parisc :-(.
I'll try tomorrow to recompile yacc.

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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> are missing. And on CVS tree, there is no more binutil src. Where can I
> find the latest binutil src, or where can I find a binutil package with

<http://sources.redhat.com/binutils/>

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: [parisc-linux] 712/80 - 7cdroms - scsi prbl
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Hi guys,
I'm trying to install parisc-linux on 712/80.
I don't know if this is actually an OS problem or a hardware problem but
you may have experienced it and could help me.
I'm booting from my external cd-rom but it seems that the kernel is
fooled by something because it creates 7 cd-rom devices for all the scsi
targets available leaving no room for the hd. If I switch the cd-rom off
then I get 7 hds!
Has anyone experienced this?
Thanks
Sorin






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On Thu, Jan 10, 2002 at 06:27:45PM +0100, Bruno Vidal wrote:
> First, thanks for your feedback, now the dump modules is working fine.
> The system is able to dump. But now I need to modify the tool to retrieve
> the dump. But I need bfd and opcode: libbfd.a and libopcode.a. It is part
> of the binutil package. But in the last debian package this two librairies
> are missing. And on CVS tree, there is no more binutil src. Where can I
> find the latest binutil src, or where can I find a binutil package with
> this two libraires. Another small problem, when using yacc on parisc
> (ie: bison), the result is not the same on a i386 and parisc :-(.
> I'll try tomorrow to recompile yacc.

sounds like you're missing the binutils-dev package.

what's the problem with yacc?

-- 
Revolutions do not require corporate support.



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"Sorin Ghinescu" writes...

> Hi guys,
> I'm trying to install parisc-linux on 712/80.
> I don't know if this is actually an OS problem or a hardware problem but
> you may have experienced it and could help me.
> I'm booting from my external cd-rom but it seems that the kernel is
> fooled by something because it creates 7 cd-rom devices for all the scsi
> targets available leaving no room for the hd. If I switch the cd-rom off
> then I get 7 hds!
> Has anyone experienced this?

Check and make sure that none of your scsi ids are conflicting, don't
forget the controller is at id 7. Also check your cables and termination.
If it still doesn't work try a different hard drive.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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Subject: [parisc-linux] Testing SCSI Driver - 53c700 - 715/50 problem.
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PARISC'ers,

I have a stable cluster of 715/50's running 2.4.9-pa25.

In a recent attempt at moving to a newer kernel the following
problems started to crop up...

Originally 2.4.9-pa25 had to be booted with sim700=noneg:0xff,nodisc:0xff
or the SCSI drives would not respond to the driver. This was
understood since the driver was in development and did not support
all the required features.

In October a newer driver was merged into the tree... and herein
possibly lies the problem.

Most of my initial testing was with our 712/60 that had no issues.
However the 715/50's had other ideas...


---------------------------------
HD contains 0.9.3 latest install with a few apt-get upgrades.

/dev/sda1 = Swap
/dev/sda2 = ext2 /

Box is a 715/50

(2.4.17-pa6)
Searching for devices...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000 [0], versions 0x6, 0x0, 0x77
2. Scorpio Core BA (11) at 0xf082f000 [2], versions 0x7, 0x0, 0x70
3. Scorpio Core SCSI (10) at 0xf0825000 [2/0/1], versions 0x7, 0x0, 0x71
4. Scorpio Core LAN (802.3) (10) at 0xf0826000 [2/0/2], versions 0x7, 0x0, 0x72
5. Scorpio Core HIL (10) at 0xf0821000 [2/0/3], versions 0x7, 0x0, 0x73
6. Scorpio Core RS-232 (10) at 0xf0823000 [2/0/4], versions 0x7, 0x0, 0x75
7. Scorpio Core RS-232 (10) at 0xf0822000 [2/0/5], versions 0x7, 0x0, 0x75
8. Scorpio Core Centronics (10) at 0xf0824000 [2/0/6], versions 0x7, 0x0, 0x74
9. Scorpio Audio (10) at 0xf1000000 [2/0/8], versions 0x7, 0x0, 0x7b
10. Scorpio (715/50) (0) at 0xfffbe000 [8], versions 0x310, 0x0, 0x4
11. Scorpio (1) at 0xfffbf000 [9], versions 0x17, 0x0, 0x9
CPU(s): 1 x PA7100 (PCX-T) at 50.000000 MHz
Asp version 1 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered


SCSI Disk Problems:
---------------------------------
Running 2.4.9-pa25 all is okay.

Kernel Parameters:
HOME=/ TERM=LINUX root=/dev/sda2 ip=bootp
console=ttyS0 sim700=noneg:0xff,nodisc:0xff

SCSI Output:
SCSI subsystem driver Revision: 1.00
sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
scsi0: test 1 completed ok.
scsi0 : LASI/Simple 53c7xx
  Vendor: QUANTUM   Model: LPS525S           Rev: 3110
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sda: 1023484 512-byte hdwr sectors (524 MB)
Partition check:
 sda: sda1 sda2
---------------------------------
Running 2.4.17-pa6 (Random hangs during startup)

Kernel Parameters:
TERM=linux ip=bootp root=/dev/sda2 console=ttyS0

SCSI subsystem driver Revision: 1.00
53c700: consistent memory allocation failed
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0
scsi0 : LASI SCSI 53c700
  Vendor: QUANTUM   Model: LPS525S           Rev: 3110
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
scsi0: (6:0) Enabling Tag Command Queuing
SCSI device sda: 1023484 512-byte hdwr sectors (524 MB)
Partition check:
 sda: sda1 sda2
---------------------------------

Next I've disabled the 53c700/710 driver, booting from NFS
with init=/bin/sh. The nfsroot was created from the 0.9.3
install plus some apt-get upgrades.

This runs great, tested a few apps (vi,top,du...), ran
a tar/gzip of a few hundred megs.

Then mount -o rw,remount /
Followed by the startup of all daemons.
/etc/init.d/rcS -> Run all /etc/rc.S stuff
/etc/rc2.d -> Run it...

Done. Runs amazingly.

Which does lead me to assume that the 53c700 driver is having
some problems with these machines.

I'm all ears to suggestions, and willing to do some work
to get stuff back on track :)

Where do I go from here? Solid lockups are a new kind of problem
for me...

c.




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On Thu, 10 Jan 2002, Bruno Vidal wrote:

> First, thanks for your feedback, now the dump modules is working fine.
> The system is able to dump. But now I need to modify the tool to retrieve
> the dump. But I need bfd and opcode: libbfd.a and libopcode.a. It is part
> of the binutil package. But in the last debian package this two librairies
> are missing.

You need the binutils-dev package installed.  It also contains the .so
symlinks that you may need :-)

At first, I was stunned to read the above since I personally built the
binutils debs on the a500 and uploaded them (I'm the maintainer, btw :-P),
but then realised that you were looking for binutil (no 's') and that's
why you couldn't find it :-)

C




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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] FWD: The problematic asm code
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Torsten, the Debian ghostscript maintainer, has been working on trying
to figure out a weird floating-point related (?) problem with the
ghostscript package on hppa.

Basically, the problem was tracked down to this:
<Bluehorn> (gdb) bt 2
<Bluehorn> #0  gs_distance_transform (dx=0, dy=18, pmat=0xbff01980, pdpt=0xbff01960)
<Bluehorn>     at src/gsmatrix.c:253
<Bluehorn> #1  0x000f53e4 in common_transform (i_ctx_p=0x4067c8,
<Bluehorn>     ptproc=0x3e1562 <__DTOR_END__+22238>,
<Bluehorn>     matproc=0x3e15ba <__DTOR_END__+22326>) at src/zmatrix.c:297
<Bluehorn> tausq: see? dx is zero and dy is 18

<Bluehorn> (gdb) up
<Bluehorn> 297                     code = (*matproc) (opxy[0], opxy[1], pmat, &pt);
<Bluehorn> (gdb) p opxy
<Bluehorn> $15 = {72, 72}

Some disassembly from the code attached. Looks like it's not calling the
function with the right set of registers?

Any ideas?  This might be related to the python2 problem we are seeing
as well...

randolph

----- Forwarded message from Torsten Landschoff <torsten@sarti.debian.org> -----

Date: Thu, 10 Jan 2002 22:21:09 +0000
To: tausq@debian.org
Cc: 122666@bugs.debian.org
Subject: The problematic asm code
From: Torsten Landschoff <torsten@sarti.debian.org>

Hi Randolph, 

This code is generated - I think it is wrong:

                code = (*matproc) (opxy[0], opxy[1], pmat, &pt);
 c30:	34 74 00 50 	ldo 28(r3),r20
 c34:	48 73 00 c0 	ldw 60(sr0,r3),r19
 c38:	6b d3 3f 99 	stw r19,-34(sr0,sp)
 c3c:	34 73 00 40 	ldo 20(r3),r19
 c40:	6b d3 3f 91 	stw r19,-38(sr0,sp)
 c44:	34 13 00 20 	ldi 10,r19
 c48:	2c 73 00 16 	fldd  r19(sr0,r3),fr22
 c4c:	2f c1 12 16 	fstd  fr22,-10(sr0,sp)
 c50:	0f c1 10 99 	ldw  -10(sr0,sp),r25
 c54:	0f c9 10 9a 	ldw  -c(sr0,sp),r26
 c58:	0e 81 10 97 	ldw  -10(sr0,r20),r23
 c5c:	0e 89 10 98 	ldw  -c(sr0,r20),r24
 c60:	48 76 3f a9 	ldw -2c(sr0,r3),r22
 c64:	eb e0 00 00 	b,l c6c <common_transform+0x178>,r31
			c64: R_PARISC_PCREL17F	$$dyncall
 c68:	08 1f 02 42 	copy r31,rp
 c6c:	08 1c 02 53 	copy ret0,r19
 c70:	68 73 00 60 	stw r19,30(sr0,r3)

The source file is src/zmatrix.c from gs-aladdin. Not sure if the 
license would allow pasting it here... Should be the same for gs-6.51, 
but it is harder to build because it includes more stuff so I used
gs-aladdin...

cu
	Torsten

----- End forwarded message -----

-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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From: Phil Anderson <andersop@neverland.ncssm.edu>
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I've had this happen too, but it was on a Sun Ultra 30. The problem was
that the computer didn't recognize the CDROM correctly. Trying a different
cdrom may fix the problem... It did for me.

-phil




On Thu, 10 Jan 2002, Matt Taggart wrote:

>
> "Sorin Ghinescu" writes...
>
> > Hi guys,
> > I'm trying to install parisc-linux on 712/80.
> > I don't know if this is actually an OS problem or a hardware problem but
> > you may have experienced it and could help me.
> > I'm booting from my external cd-rom but it seems that the kernel is
> > fooled by something because it creates 7 cd-rom devices for all the scsi
> > targets available leaving no room for the hd. If I switch the cd-rom off
> > then I get 7 hds!
> > Has anyone experienced this?
>
> Check and make sure that none of your scsi ids are conflicting, don't
> forget the controller is at id 7. Also check your cables and termination.
> If it still doesn't work try a different hard drive.
>
>

-- 
===============================================================================

Phil Anderson
UNIX Systems Administrator
andersop@neverland.ncssm.edu
The_13th_Ewok@hotmail.com

"Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson




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From: Nicholas Leippe <nick@byu.edu>
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Subject: [parisc-linux] video capabilities?
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I have a B132L.  I've successfully got X and KDE
running on it, in 8bpp mode.  I was wondering
how I can find out whether it has the hcrx or vg
graphics so I would know whether it was capable
of 24bpp mode?  And if it can do 24bpp, how would
I switch?

Also, for some reason I can't get any sound out of
it.  I can get garbled clicks out of the speaker,
but mpg123 doesn't play recognizably and artsd
fails to start with an error.


Nick



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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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Subject: Re: [parisc-linux] binutils: opcodes and bfd
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	Hi
Sorry, but where can I download binutils-dev. It's not on the iso CDs.
And the link on the debian seems broken, there is nothing under this directory !.
ftp://ftp.debian.org/debian/dists/unstable/main/binary-hppa/
On the debian site, I found only package for i386, not for parisc.

"Christopher C. Chimelis" wrote:
> 
> On Thu, 10 Jan 2002, Bruno Vidal wrote:
> 
> > First, thanks for your feedback, now the dump modules is working fine.
> > The system is able to dump. But now I need to modify the tool to retrieve
> > the dump. But I need bfd and opcode: libbfd.a and libopcode.a. It is part
> > of the binutil package. But in the last debian package this two librairies
> > are missing.
> 
> You need the binutils-dev package installed.  It also contains the .so
> symlinks that you may need :-)
> 
> At first, I was stunned to read the above since I personally built the
> binutils debs on the a500 and uploaded them (I'm the maintainer, btw :-P),
> but then realised that you were looking for binutil (no 's') and that's
> why you couldn't find it :-)
> 
> C
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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Got it, I found it under ftp://ftp.fr.debian.org/debian/pool/main/b/binutils

	Thanks all.

Bruno Vidal wrote:
> 
>         Hi
> Sorry, but where can I download binutils-dev. It's not on the iso CDs.
> And the link on the debian seems broken, there is nothing under this directory !.
> ftp://ftp.debian.org/debian/dists/unstable/main/binary-hppa/
> On the debian site, I found only package for i386, not for parisc.
> 
> "Christopher C. Chimelis" wrote:
> >
> > On Thu, 10 Jan 2002, Bruno Vidal wrote:
> >
> > > First, thanks for your feedback, now the dump modules is working fine.
> > > The system is able to dump. But now I need to modify the tool to retrieve
> > > the dump. But I need bfd and opcode: libbfd.a and libopcode.a. It is part
> > > of the binutil package. But in the last debian package this two librairies
> > > are missing.
> >
> > You need the binutils-dev package installed.  It also contains the .so
> > symlinks that you may need :-)
> >
> > At first, I was stunned to read the above since I personally built the
> > binutils debs on the a500 and uploaded them (I'm the maintainer, btw :-P),
> > but then realised that you were looking for binutil (no 's') and that's
> > why you couldn't find it :-)
> >
> > C
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> --
>         Vidal Bruno, (770-4271)
>         SSD-HA Team, HP-UX & LINUX Support
>         bruno_vidal@admin.france.hp.com

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Bruno Vidal writes...

> 	Hi
> Sorry, but where can I download binutils-dev. It's not on the iso CDs.
> And the link on the debian seems broken, there is nothing under this director
> y !.
> ftp://ftp.debian.org/debian/dists/unstable/main/binary-hppa/
> On the debian site, I found only package for i386, not for parisc.

Debian packages now live in the pool. In your case,

ftp://ftp.fr.debian.org/debian/pool/main/b/binutils/binutils-dev_2.11.92.0.12.3-5_hppa.deb

But it's much easier to use apt-get or dselect to install packages rather
then downloading and installing by hand. Give them a try I think you'll
like them.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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>
>
>Also, for some reason I can't get any sound out of
>it.  I can get garbled clicks out of the speaker,
>but mpg123 doesn't play recognizably and artsd
>fails to start with an error.
>

I bet you used the 0.9.3, which is good.
Unfortunaly, the Harmony (audio chipset) bug
has only been corrected after. 2 solution:
1) Download the kernel sources from a CVS snapshot:
    ftp://ftp.parisc-linux.org/cvs
    and compile a new kernel.
2) Ask me to put a kernel in a download place. But please
   remember this will not be an official kernel.

Regards,
Matthieu

>
>
>Nick
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>






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On Fri, Jan 11, 2002 at 11:23:43AM +0100, Matthieu Delahaye wrote:
> >
> >
> >Also, for some reason I can't get any sound out of
> >it.  I can get garbled clicks out of the speaker,
> >but mpg123 doesn't play recognizably and artsd
> >fails to start with an error.
> >
> 
> I bet you used the 0.9.3, which is good.
> Unfortunaly, the Harmony (audio chipset) bug
> has only been corrected after. 2 solution:
> 1) Download the kernel sources from a CVS snapshot:
>    ftp://ftp.parisc-linux.org/cvs
>    and compile a new kernel.
> 2) Ask me to put a kernel in a download place. But please
>   remember this will not be an official kernel.

Just  grab the latest kernel from ftp.parisc-linux.org/kernels/32
(iirc); that should work.

Richard




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Hi,
I'm wondering to know if vmware can work on PA-Linux ?

Regards,
Chen Huaping




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No chance. Vmware is an i386 only application.

On Fri, 11 Jan 2002, chenhp@hpsgnsw.sgp.hp.com wrote:

> Hi,
> I'm wondering to know if vmware can work on PA-Linux ?
>
> Regards,
> Chen Huaping
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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On Sat, 2002-01-12 at 03:16, chenhp@hpsgnsw.sgp.hp.com wrote:
> Hi,
> I'm wondering to know if vmware can work on PA-Linux ?

no this cannot work since it runs only i386 code on i386. It does not
emulate a cpu. "bochs" however is a project that should run on pa-linux,
but it is awfully slow (unusable for me)

andi










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Hello,

I'm currently testing the distribution from 0.9.3 on a 715/80 machine. 
I'm running the latest CVS kernel and I have it networked, using the AUI 
port, and also running an X server.

The computer has an EISA slot with a network card that I can't identify. 
The main chips appear to be:

LUCENT/Hewlett Packard
100 VG
1821 - 1400

LUCENT
2X01 MC
Regatta 100

Intel
N82503
L7201918

The card has two ports, a 10 Mbit/sec and a 100Mbit/sec.

Is there a driver for this card?

Thanks.

-- 
      Rafael




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Xref: news.gmane.org gmane.linux.ports.parisc:13679

On Fri, Jan 11, 2002 at 10:38:05AM -0500, Rafael Herrera wrote:
> LUCENT/Hewlett Packard
> 100 VG
> 1821 - 1400
> 
> LUCENT
> 2X01 MC
> Regatta 100
> 
> Intel
> N82503
> L7201918
> 
> The card has two ports, a 10 Mbit/sec and a 100Mbit/sec.
> 
> Is there a driver for this card?

yep it's the hp100 driver.  i've used it myself (when i got a ping back
from it, i declared the eisa code good enough to commit :-).  in config,
that's: HP 10/100VG PCLAN (ISA, EISA, PCI) support' CONFIG_HP100

btw, the 100Mbit port is 100VG, not 100TX so you need 100VG equipment
to work with it.  the 10Mbit port is vanilla 10baseT though.

-- 
Revolutions do not require corporate support.



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Subject: [parisc-linux] Correction for the PA-RISC/Linux Boot HOWTO at ESIEE's web site.
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Xref: news.gmane.org gmane.linux.ports.parisc:13680

I'm booting a 715/80 workstation using a PC with SuSE 7.2. Trying to 
follow the examples to configure bootp/tftp at

http://mkhppa1.esiee.fr/parisc-linux-boot/parisc-linux-boot/preparation.html

I could not get it to boot.

This distribution sets the daemons as follows:

tftp    dgram  udp  wait  root  /usr/sbin/tcpd  in.tftpd -s /tftpboot
bootps  dgram  udp  wait  root  /usr/sbin/bootpd  bootpd -c /tftpboot

This a chroot setup, so the example /etc/bootptab in the web page will 
not work.

The configuration that worked for me is the following:

parisc:hd=/:\
                 :ht=ethernet:\
                 :ha=0800093BF206:\
                 :ip=192.168.0.8:\
                 :bf=lifimage:\
                 :sm=255.255.0.0:\
                 :to=7200:

Where the bootable kernel image was the lifimage created using "make 
palo" (The web page description is ambiguous as to what image to use: 
vmlinux or lifimage)

Also the purpose of the parameter "rp" in the example bootptab is not 
clear in the example. Its purpose is to specify a root filesystem to 
mount, but the lifimage has that parameter set from palo Makefile.

-- 
      Rafael




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Matthew Wilcox wrote:

> yep it's the hp100 driver.  i've used it myself (when i got a ping back
> from it, i declared the eisa code good enough to commit :-).  in config,
> that's: HP 10/100VG PCLAN (ISA, EISA, PCI) support' CONFIG_HP100
 

It does not seem to be found. See my attached dmesg.


> btw, the 100Mbit port is 100VG, not 100TX so you need 100VG equipment
> to work with it.  the 10Mbit port is vanilla 10baseT though.


I can get a hold onsome of that equipment.

Thanks.
-- 
      Rafael

--------------070701060308020605020306
Content-Type: text/plain;
 name="dmesg1"
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 filename="dmesg1"

Linux version 2.4.17-pa6 (raffo@inca) (gcc version 3.0.2 20010829 (prerelease)) #11 Fri Jan 11 10:56:42 EST 2002
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00006190 00000481 00000000 00000000 7795c3b3 00000000 00000004 00000072 00000072
vers  0000000b
model 9000/715
Total Memory: 48 Mb
pagetable_init
On node 0 totalpages: 12288
zone(0): 12288 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/sda2 eisa_irq_edge=3,4,5,7,9,10,11,14,15 console=tty0 sti=1 sti_font=VGA8x16
Console: colour dummy device 160x64
Calibrating delay loop... 79.66 BogoMIPS
Memory: 45348k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Searching for devices...
Found devices:
1. Mirage 80 GSC Builtin Graphics (10) at 0xf8000000 [1], versions 0x10, 0x0, 0x85
2. Mirage 80 Core BA (11) at 0xf0100000 [2], versions 0x2b, 0x0, 0x81
3. Mirage 80 Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x2b, 0x0, 0x82
4. Mirage 80 Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x2b, 0x0, 0x8a
5. Mirage 80 Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x2b, 0x0, 0x8c
6. Mirage 80 Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x2b, 0x0, 0x74
7. Mirage 80 Audio (10) at 0xf0104000 [2/0/8], versions 0x2b, 0x0, 0x7b
8. Mirage 80 Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x2b, 0x0, 0x83
9. Mirage 80 Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x2b, 0x0, 0x84
10. Mirage 80 Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x2b, 0x0, 0x84
11. Pace Wax BA (11) at 0xf0200000 [5], versions 0x10, 0x0, 0x8e
12. Pace Core HIL (10) at 0xf0201000 [5/0/1], versions 0x10, 0x0, 0x73
13. Mirage 80 Wax RS-232 (10) at 0xf0202000 [5/0/2], versions 0x10, 0x0, 0x8c
14. Mirage 80 (0) at 0xfffbe000 [8], versions 0x619, 0x0, 0x4
15. Mirage 80 (1) at 0xfffbf000 [9], versions 0x4f, 0x0, 0x9
CPU(s): 1 x PA7100LC (PCX-L) at 80.000000 MHz
Lasi version 0 at 0xf0100000 found.
LED display at f010c000 registered
Wax at 0xf0200000 found.
Wax: HIL Keyboard-NMI registered.
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Enabled gecko-style soft power switch.
Starting kswapd
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
STI word mode ROM at f0024000, hpa=f8000000
STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1280
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 2b4ded6d, mmio: 0xf8100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0202800 (irq = 121) is a 16550A
PS/2 keyboard port at 0xf0108000 (irq 69) found, device attached.
PS/2 psaux port at 0xf0108100 (irq 69) found, device attached.
Found HIL at 0xf0201000, IRQ 126
HIL: no keyboard present.
Warning : device (10, 0x10, 0x0, 0x73) NOT claimed by HIL
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize

PCI or EISA Host Bus Adapter 0 not registered. in16(0x100) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x120) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x140) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x160) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x180) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x1a0) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x1c0) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x1e0) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x200) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x220) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x240) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x260) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x280) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x2a0) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x2c0) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x2e0) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x300) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x320) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x340) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x360) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x380) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x3a0) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x3c0) returning -1

PCI or EISA Host Bus Adapter 0 not registered. in16(0x3e0) returning -1
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 3B F2 06 IRQ 87.
82596.c $Revision: 1.27 $
SCSI subsystem driver Revision: 1.00
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2 
scsi0 : LASI SCSI 53c700
scsi0: (3:0) Synchronous at offset 8, period 100ns
  Vendor: QUANTUM   Model: XP34550S          Rev: LXY1
  Type:   Direct-Access                      ANSI SCSI revision: 02
scsi0: (3:1) Synchronous at offset 8, period 100ns
  Vendor: NEC       Model: CD-ROM DRIVE:461  Rev: 2.3d
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi0: (4:1) Synchronous at offset 8, period 124ns
Attached scsi disk sda at scsi0, channel 0, id 3, lun 0
scsi0: (3:0) Enabling Tag Command Queuing
sda: Spinning up disk....ready
SCSI device sda: 8890760 512-byte hdwr sectors (4552 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 4, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.12
Lasi Harmony Audio rev. 0 at 0xf0104000, using IRQ 82
sticonsole_init: searching for STI ROMs
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :    60.800 MB/sec
   8regs_prefetch:    60.800 MB/sec
   32regs    :    88.400 MB/sec
   32regs_prefetch:    88.400 MB/sec
raid5: using function: 32regs_prefetch (88.400 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
NOT FREEING INITMEM
Adding Swap: 249136k swap-space (priority -1)
scsi0 (3:0) Target is suffering from tag starvation.
eth0: link ok.

--------------070701060308020605020306--




From - Thu Nov 08 21:21:13 2018
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In reference to a message from Randolph Chung, dated Jan 10:
> Torsten, the Debian ghostscript maintainer, has been working on trying
> to figure out a weird floating-point related (?) problem with the
> ghostscript package on hppa.

As a followup... torsten managed to track this down to a simple test
case:


#include <stdio.h>
void	out(const char *str, double x)
{
	printf("%s: %f\n", str, x);
}
int	main(int argc, char **argv)
{
	void	(*f)(const char *, double) = out;
	f("Calling via function pointer", 3.1415926535);
	out("Calling directly", 3.1415926535);
	return 0;
}

This gives:
% ./realind
Calling via function pointer: 0.000000
Calling directly: 3.141593

The RTL and the disassembly shows that in the function pointer case gcc
tries to load the floating point argument into an integer register.

A bug has been filed against gcc upstream about this.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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On Fri, Jan 11, 2002 at 11:07:45AM -0500, Rafael Herrera wrote:
> 1. Mirage 80 GSC Builtin Graphics (10) at 0xf8000000 [1], versions 0x10, 0x0, 0x85
> 2. Mirage 80 Core BA (11) at 0xf0100000 [2], versions 0x2b, 0x0, 0x81
> 3. Mirage 80 Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x2b, 0x0, 0x82
> 4. Mirage 80 Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x2b, 0x0, 0x8a
> 5. Mirage 80 Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x2b, 0x0, 0x8c
> 6. Mirage 80 Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x2b, 0x0, 0x74
> 7. Mirage 80 Audio (10) at 0xf0104000 [2/0/8], versions 0x2b, 0x0, 0x7b
> 8. Mirage 80 Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x2b, 0x0, 0x83
> 9. Mirage 80 Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x2b, 0x0, 0x84
> 10. Mirage 80 Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x2b, 0x0, 0x84
> 11. Pace Wax BA (11) at 0xf0200000 [5], versions 0x10, 0x0, 0x8e
> 12. Pace Core HIL (10) at 0xf0201000 [5/0/1], versions 0x10, 0x0, 0x73
> 13. Mirage 80 Wax RS-232 (10) at 0xf0202000 [5/0/2], versions 0x10, 0x0, 0x8c
> 14. Mirage 80 (0) at 0xfffbe000 [8], versions 0x619, 0x0, 0x4
> 15. Mirage 80 (1) at 0xfffbf000 [9], versions 0x4f, 0x0, 0x9

This is rather strange.  I see no EISA adapter.  Sure, we have Wax in
its role as a bus adapter, with its HIL & RS-232 subdevices, but there's
no EISA device.  Anyone know why this might be?

(iirc, it normally shows up as device 6).

-- 
Revolutions do not require corporate support.



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From: Rafael Herrera <vze26vn8@verizon.net>
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Subject: Re: [parisc-linux] How to configure EISA network card in 715/80
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Matthew Wilcox wrote:

> On Fri, Jan 11, 2002 at 11:07:45AM -0500, Rafael Herrera wrote:
> 
>>1. Mirage 80 GSC Builtin Graphics (10) at 0xf8000000 [1], versions 0x10, 0x0, 0x85
>>2. Mirage 80 Core BA (11) at 0xf0100000 [2], versions 0x2b, 0x0, 0x81
>>3. Mirage 80 Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x2b, 0x0, 0x82
>>4. Mirage 80 Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x2b, 0x0, 0x8a
>>5. Mirage 80 Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x2b, 0x0, 0x8c
>>6. Mirage 80 Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x2b, 0x0, 0x74
>>7. Mirage 80 Audio (10) at 0xf0104000 [2/0/8], versions 0x2b, 0x0, 0x7b
>>8. Mirage 80 Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x2b, 0x0, 0x83
>>9. Mirage 80 Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x2b, 0x0, 0x84
>>10. Mirage 80 Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x2b, 0x0, 0x84
>>11. Pace Wax BA (11) at 0xf0200000 [5], versions 0x10, 0x0, 0x8e
>>12. Pace Core HIL (10) at 0xf0201000 [5/0/1], versions 0x10, 0x0, 0x73
>>13. Mirage 80 Wax RS-232 (10) at 0xf0202000 [5/0/2], versions 0x10, 0x0, 0x8c
>>14. Mirage 80 (0) at 0xfffbe000 [8], versions 0x619, 0x0, 0x4
>>15. Mirage 80 (1) at 0xfffbf000 [9], versions 0x4f, 0x0, 0x9
>>
> 
> This is rather strange.  I see no EISA adapter.  Sure, we have Wax in
> its role as a bus adapter, with its HIL & RS-232 subdevices, but there's
> no EISA device.  Anyone know why this might be?
> 
> (iirc, it normally shows up as device 6).

If it's of any help, the card is connected through an add-on card to the 
main board. The chips on the add-on card are: TACT84544BPC, TACT84543BPP 
and TACT84541CPC.

-- 
      Rafael




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So I finally got my 715/33 to boot off of cd and did all of the
partitioning fun, but on trying to copy the kernel and base system
from the cd to the hd, it could not mount the cdrom again. I was
initially using a NEC 4x cd, but then tried an Apple(sony) 2x and a
misc 4x.  no change.  The errors change, but are sometimes a missing
media error(happens quickly) or a set of SCSI errors(ends with
panic).  I neglected to write those down, but I'll reproduct sunday or
monday
thanks
Aaron
ps the 755 works beautifully with LAM as part of my beowulf, thanks
-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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Subject: Re: [parisc-linux] How to configure EISA network card in 715/80
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On Fri, Jan 11, 2002 at 11:21:59AM -0500, Rafael Herrera wrote:
> If it's of any help, the card is connected through an add-on card to the 
> main board. The chips on the add-on card are: TACT84544BPC, TACT84543BPP 
> and TACT84541CPC.

Yep, I'm familiar with that board.  Normally when it's plugged in, PDC
reports the EISA adapter.  Can you try unplugging it & replugging it to
see if that helps?  You cold also try messing around at the PDC prompt,
see whether anything can see it.  As you may have guessed, I have no
idea what the problem is and I'm suggesting things at random :-)

-- 
Revolutions do not require corporate support.



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From: Aaron Macks <aaronm@cs.brandeis.edu>
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Subject: [parisc-linux] for free: HP ATM EISA
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I pulled an HP branded EISA ATM card from my 755 a while ago.  If
anyone out there wants it, I have no current of future need and don't
mind giving it to someone who does.  
contact off list for more
Aaron
-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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Matthew Wilcox wrote:

> On Fri, Jan 11, 2002 at 11:21:59AM -0500, Rafael Herrera wrote:
> 
>>If it's of any help, the card is connected through an add-on card to the 
>>main board. The chips on the add-on card are: TACT84544BPC, TACT84543BPP 
>>and TACT84541CPC.
> 
> Yep, I'm familiar with that board.  Normally when it's plugged in, PDC
> reports the EISA adapter.  Can you try unplugging it & replugging it to
> see if that helps?  You cold also try messing around at the PDC prompt,
> see whether anything can see it.  As you may have guessed, I have no
> idea what the problem is and I'm suggesting things at random :-)


I'll try when I get back home.

Raf






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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] 712/80 - 7cdroms - scsi prbl
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To: "Sorin Ghinescu" <sghinesc@columbus.rr.com>
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"Sorin Ghinescu" wrote:
> I'm booting from my external cd-rom but it seems that the kernel is
> fooled by something because it creates 7 cd-rom devices for all the scsi
> targets available leaving no room for the hd. If I switch the cd-rom off
> then I get 7 hds!

This typically means the HD is set to the same SCSI ID as the
interface controller (NCR 53c710 logic on LASI). Host ID is
7 by default. Verify the HD is set to something else.

It's possible the lasi scsi driver is broken and setting the
initiator to 0 (or something other than 7).

grant



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From: Christian Suder <csuder@cisco.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] How to configure EISA network card in 715/80
Date: Fri, 11 Jan 2002 11:38:02 -0800
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Xref: news.gmane.org gmane.linux.ports.parisc:13690

I do see those same messages :


>PCI or EISA Host Bus Adapter 0 not registered. in16(0x100) returning -1

running newer kernels on a C110 with a NE1000 NIC. With 2.4.9-pa23 it works 
nicely. Here is the output with a newer kernel 2.4.17-pa3 :

15. Raven T' Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x1e, 0x0, 
0x90,
  additional addresses: 0xf4000000
16. U2-IOA BC GSC+ Port (7) at 0xf5fbf000 [8/63], versions 0x501, 0x1, 0xc
17. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0x7, 0xb
18. Coral SGC Graphics (10) at 0xf6000000 [10/20], versions 0x4, 0x0, 0x77
19. U2-IOA BC GSC+ Port (7) at 0xf5fff000 [10/63], versions 0x501, 0x1, 0xc
20. Raven 120 T' (0) at 0xfffa0000 [32], versions 0x58e, 0x0, 0x4
21. SkyHawk 100/120 (1) at 0xfffb1000 [49], versions 0x49, 0x0, 0x9
CPU(s): 1 x PA7200 (PCX-T') at 120.000000 MHz
ccio found U2 at 0xfff88000
ccio found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
Wax at 0xffe00000 found.
Wax: HIL Keyboard-NMI registered.
Wax EISA Adapter found at 0xfc000000
EISA: failed to claim EISA Bus address space!

Note the message in the last line !

Maybe that gives some hint what its going on,

         Christian





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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] How to configure EISA network card in 715/80
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On Fri, Jan 11, 2002 at 11:38:02AM -0800, Christian Suder wrote:
> running newer kernels on a C110 with a NE1000 NIC. With 2.4.9-pa23 it works 
> nicely. Here is the output with a newer kernel 2.4.17-pa3 :
> Wax EISA Adapter found at 0xfc000000
> EISA: failed to claim EISA Bus address space!
> 
> Note the message in the last line !
> 
> Maybe that gives some hint what its going on,

This is a very different problem -- your machine at least finds the
EISA adapter.  I'm interesting in debugging it though; please send a
full dmesg to me in personal mail.

-- 
Revolutions do not require corporate support.



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] PIC assembly
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Grant Grundler wrote:
> I've been given the OK to link into h21007.www2.hp.com website and promised
> the URLs for specific documents wouldn't change (too) suddenly.
> I'll add those links in the next couple of days to p-l.org
> "Tech Documentation" to those.

I've added links for PA 1.1 and PA 2.0 Instruction Sets among other things.
Please reload:
	http://www.parisc-linux.org/documentation/index.html

Please continue to post requests for links to docs here.
(I'm not promising any new docs at this point).

thanks,
grant



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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] How to configure EISA network card in 715/80
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On Fri, Jan 11, 2002 at 08:00:16PM +0000, Matthew Wilcox wrote:
> This is a very different problem -- your machine at least finds the
> EISA adapter.  I'm interesting in debugging it though; please send a
> full dmesg to me in personal mail.

based on the information you sent, try this patch:

Index: drivers/gsc/dino.c
===================================================================
RCS file: /var/cvs/linux/drivers/gsc/dino.c,v
retrieving revision 1.51
diff -u -p -r1.51 dino.c
--- drivers/gsc/dino.c	2002/01/09 00:13:53	1.51
+++ drivers/gsc/dino.c	2002/01/11 21:37:44
@@ -466,15 +464,6 @@ dino_bios_init(void)
  * Claim an 8MB chunk of unused IO space and call the generic PCI routines
  * to set up the addresses of the devices on this bus.
  */
-#ifdef CONFIG_IOMMU_CCIO
-struct ioc;
-void ccio_extend_mmio_range(struct ioc *ioc);
-struct resource * ccio_find_parisc_resource(struct ioc *ioc);
-#else /* !CONFIG_IOMMU_CCIO */
-#define ccio_extend_mmio_range()
-#define ccio_find_parisc_resource(x) &iomem_resource
-#endif /* !CONFIG_IOMMU_CCIO */
-
 #define _8MB 0x00800000
 static void __init
 dino_card_setup(struct pci_bus *bus, unsigned long base_addr)
Index: drivers/gsc/eisa.c
===================================================================
RCS file: /var/cvs/linux/drivers/gsc/eisa.c,v
retrieving revision 1.13
diff -u -p -r1.13 eisa.c
--- drivers/gsc/eisa.c	2001/11/13 20:42:43	1.13
+++ drivers/gsc/eisa.c	2002/01/11 21:37:44
@@ -311,16 +311,22 @@ static void init_eisa_pic(void)
 static int __devinit eisa_probe(struct parisc_device *dev)
 {
 	int result;
+	struct resource *parent_resource;
+
 	char *name = is_mongoose(dev) ? "Mongoose" : "Wax";
 
 	printk(KERN_INFO "%s EISA Adapter found at 0x%08lx\n", 
 		name, dev->hpa);
-   
+
+	eisa_dev.hba.dev = dev;
+	eisa_dev.hba.iommu = ccio_get_iommu(dev);
+	parent_resource = ccio_find_parisc_resource(eisa_dev.hba.iommu);
+
 	eisa_dev.hba.lmmio_space.name = "EISA";
 	eisa_dev.hba.lmmio_space.start = (unsigned long) 0xfffffffffc000000;
 	eisa_dev.hba.lmmio_space.end = (unsigned long) 0xffffffffffbfffff;
 	eisa_dev.hba.lmmio_space.flags = IORESOURCE_MEM;
-	result = request_resource(&iomem_resource, &eisa_dev.hba.lmmio_space);
+	result = request_resource(parent_resource, &eisa_dev.hba.lmmio_space);
 	if (result < 0) {
 		printk(KERN_ERR "EISA: failed to claim EISA Bus address space!\n");
 		return result;
Index: include/asm-parisc/pci.h
===================================================================
RCS file: /var/cvs/linux/include/asm-parisc/pci.h,v
retrieving revision 1.39
diff -u -p -r1.39 pci.h
--- include/asm-parisc/pci.h	2002/01/07 23:51:15	1.39
+++ include/asm-parisc/pci.h	2002/01/11 21:37:46
@@ -247,11 +247,16 @@ extern inline void pcibios_register_hba(
 
 #ifdef CONFIG_IOMMU_CCIO
 struct parisc_device;
+struct ioc;
 void * ccio_get_iommu(struct parisc_device *dev);
 struct pci_dev * ccio_get_fake(struct parisc_device *dev);
+void ccio_extend_mmio_range(struct ioc *ioc);
+struct resource * ccio_find_parisc_resource(struct ioc *ioc);
 #else /* !CONFIG_IOMMU_CCIO */
-#define ccio_get_iommu(dev) (NULL)
-#define ccio_get_fake(dev) (NULL)
+#define ccio_get_iommu(dev) do { } while (0)
+#define ccio_get_fake(dev) do { } while (0)
+#define ccio_extend_mmio_range(ioc) do { } while (0)
+#define ccio_find_parisc_resource(x) &iomem_resource
 #endif /* !CONFIG_IOMMU_CCIO */
 
 #ifdef CONFIG_IOMMU_SBA

-- 
Revolutions do not require corporate support.



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Subject: Re: [parisc-linux] 712/80 - 7cdroms - scsi prbl
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Perhaps ---

This is a classic symptom of a SCSI device set with the same address as the
SCSI controller - normally 7 in a narrow SCSI environment.
Change the address of the CDROM to 4
You need to identify the CDROM SCSI address jumpers. (usually 3 pairs of
adjacent pins with plastic shorting jumpers on. If all three have jumpers
then it is likely the device is set to address 7. remove the middle jumper -
this will change it to address 4. There may still be a conflict with another
device , but the seven drives should "go away"

Regards

Brian Mockford.
----- Original Message -----
From: "Phil Anderson" <andersop@neverland.ncssm.edu>
To: "Matt Taggart" <taggart@carmen.fc.hp.com>
Cc: "Sorin Ghinescu" <sghinesc@columbus.rr.com>;
<parisc-linux@lists.parisc-linux.org>
Sent: Friday, January 11, 2002 2:24 AM
Subject: Re: [parisc-linux] 712/80 - 7cdroms - scsi prbl


>
>
> I've had this happen too, but it was on a Sun Ultra 30. The problem was
> that the computer didn't recognize the CDROM correctly. Trying a different
> cdrom may fix the problem... It did for me.
>
> -phil
>
>
>
>
> On Thu, 10 Jan 2002, Matt Taggart wrote:
>
> >
> > "Sorin Ghinescu" writes...
> >
> > > Hi guys,
> > > I'm trying to install parisc-linux on 712/80.
> > > I don't know if this is actually an OS problem or a hardware problem
but
> > > you may have experienced it and could help me.
> > > I'm booting from my external cd-rom but it seems that the kernel is
> > > fooled by something because it creates 7 cd-rom devices for all the
scsi
> > > targets available leaving no room for the hd. If I switch the cd-rom
off
> > > then I get 7 hds!
> > > Has anyone experienced this?
> >
> > Check and make sure that none of your scsi ids are conflicting, don't
> > forget the controller is at id 7. Also check your cables and
termination.
> > If it still doesn't work try a different hard drive.
> >
> >
>
> --
>
============================================================================
===
>
> Phil Anderson
> UNIX Systems Administrator
> andersop@neverland.ncssm.edu
> The_13th_Ewok@hotmail.com
>
> "Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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Subject: Re: [parisc-linux] 712/80 - 7cdroms - scsi prbl
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To: "Brian Mockford" <brian.mockford@dartnet.co.uk>,
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Xref: news.gmane.org gmane.linux.ports.parisc:13695

Oops,

"will change it to address 5"

Regards

Brian Mockford
----- Original Message -----
From: "Brian Mockford" <brian.mockford@dartnet.co.uk>
To: "Phil Anderson" <andersop@neverland.ncssm.edu>; "Matt Taggart"
<taggart@carmen.fc.hp.com>
Cc: "Sorin Ghinescu" <sghinesc@columbus.rr.com>;
<parisc-linux@lists.parisc-linux.org>
Sent: Friday, January 11, 2002 9:55 PM
Subject: Re: [parisc-linux] 712/80 - 7cdroms - scsi prbl


> Perhaps ---
>
> This is a classic symptom of a SCSI device set with the same address as
the
> SCSI controller - normally 7 in a narrow SCSI environment.
> Change the address of the CDROM to 4
> You need to identify the CDROM SCSI address jumpers. (usually 3 pairs of
> adjacent pins with plastic shorting jumpers on. If all three have jumpers
> then it is likely the device is set to address 7. remove the middle
jumper -
> this will change it to address 4. There may still be a conflict with
another
> device , but the seven drives should "go away"
>
> Regards
>
> Brian Mockford.
> ----- Original Message -----
> From: "Phil Anderson" <andersop@neverland.ncssm.edu>
> To: "Matt Taggart" <taggart@carmen.fc.hp.com>
> Cc: "Sorin Ghinescu" <sghinesc@columbus.rr.com>;
> <parisc-linux@lists.parisc-linux.org>
> Sent: Friday, January 11, 2002 2:24 AM
> Subject: Re: [parisc-linux] 712/80 - 7cdroms - scsi prbl
>
>
> >
> >
> > I've had this happen too, but it was on a Sun Ultra 30. The problem was
> > that the computer didn't recognize the CDROM correctly. Trying a
different
> > cdrom may fix the problem... It did for me.
> >
> > -phil
> >
> >
> >
> >
> > On Thu, 10 Jan 2002, Matt Taggart wrote:
> >
> > >
> > > "Sorin Ghinescu" writes...
> > >
> > > > Hi guys,
> > > > I'm trying to install parisc-linux on 712/80.
> > > > I don't know if this is actually an OS problem or a hardware problem
> but
> > > > you may have experienced it and could help me.
> > > > I'm booting from my external cd-rom but it seems that the kernel is
> > > > fooled by something because it creates 7 cd-rom devices for all the
> scsi
> > > > targets available leaving no room for the hd. If I switch the cd-rom
> off
> > > > then I get 7 hds!
> > > > Has anyone experienced this?
> > >
> > > Check and make sure that none of your scsi ids are conflicting, don't
> > > forget the controller is at id 7. Also check your cables and
> termination.
> > > If it still doesn't work try a different hard drive.
> > >
> > >
> >
> > --
> >
>
============================================================================
> ===
> >
> > Phil Anderson
> > UNIX Systems Administrator
> > andersop@neverland.ncssm.edu
> > The_13th_Ewok@hotmail.com
> >
> > "Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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Subject: Re: [parisc-linux] FWD: The problematic asm code
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> #include <stdio.h>
> void	out(const char *str, double x)
> {
> 	printf("%s: %f\n", str, x);
> }
> int	main(int argc, char **argv)
> {
> 	void	(*f)(const char *, double) = out;
> 	f("Calling via function pointer", 3.1415926535);
> 	out("Calling directly", 3.1415926535);
> 	return 0;
> }
> 
> This gives:
> % ./realind
> Calling via function pointer: 0.000000
> Calling directly: 3.141593
> 
> The RTL and the disassembly shows that in the function pointer case gcc
> tries to load the floating point argument into an integer register.

Gcc's behavior is correct.  The ABI specifies that arguments are passed
in general registers in dynamic calls.  This is most likely a linker problem.
The linker has to create the correct stub to copy the argument to a floating
register.  The test runs as expected with HP's som linker.  With the HP
assembler, gcc passes floats in both general and floating registers because
there is no way to specifiy argument locations in static functions.  With
GAS, gcc uses .PARAM to specify argument locations in static functions.

See pa.c around line 7236 for more information on what is being done.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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From: Hamish Moffatt <hamish@cloud.net.au>
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Subject: Re: [parisc-linux] How to configure EISA network card in 715/80
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On Fri, Jan 11, 2002 at 04:17:05PM +0000, Matthew Wilcox wrote:
> This is rather strange.  I see no EISA adapter.  Sure, we have Wax in
> its role as a bus adapter, with its HIL & RS-232 subdevices, but there's
> no EISA device.  Anyone know why this might be?
> 
> (iirc, it normally shows up as device 6).

FWIW, it's device #11 for me. On a 712/80:

Found devices:
1. Mirage 80 GSC Builtin Graphics (10) at 0xf8000000 [1], versions 0x10, 0x0, 0x85
2. Mirage 80 Core BA (11) at 0xf0100000 [2], versions 0x2b, 0x0, 0x81
3. Mirage 80 Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x2b, 0x0, 0x82
4. Mirage 80 Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x2b, 0x0, 0x8a
5. Mirage 80 Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x2b, 0x0, 0x8c
6. Mirage 80 Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x2b, 0x0, 0x74
7. Mirage 80 Audio (10) at 0xf0104000 [2/0/8], versions 0x2b, 0x0, 0x7b
8. Mirage 80 Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x2b, 0x0, 0x83
9. Mirage 80 Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x2b, 0x0, 0x84
10. Mirage 80 Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x2b, 0x0, 0x84
11. Mirage 80 Wax EISA BA (11) at 0xfc000000 [4], versions 0x2b, 0x0, 0x90
12. Pace Wax BA (11) at 0xf0200000 [5], versions 0x10, 0x0, 0x8e
13. Pace Core HIL (10) at 0xf0201000 [5/0/1], versions 0x10, 0x0, 0x73
14. Mirage 80 Wax RS-232 (10) at 0xf0202000 [5/0/2], versions 0x10, 0x0, 0x8c
15. Mirage 80  (0) at 0xfffbe000 [8], versions 0x619, 0x0, 0x4
16. Mirage 80 (1) at 0xfffbf000 [9], versions 0x4f, 0x0, 0x9

I don't have anything on the EISA bus that I'm aware of; nothing
that I need to use anyway.

Hamish
-- 
Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>



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Matthew Wilcox wrote:

> 
> Yep, I'm familiar with that board.  Normally when it's plugged in, PDC
> reports the EISA adapter.  Can you try unplugging it & replugging it to
> see if that helps?  You cold also try messing around at the PDC prompt,
> see whether anything can see it.  As you may have guessed, I have no
> idea what the problem is and I'm suggesting things at random :-)


I re-set the add-on card and this time the WAX card was detected. See 
the attached dmesg. The hp100 network card does not appear to be 
detected, though. If it's loaded, is there something I can look at to 
see if it's really there? Should it be reported as eth1?

As a side note, when turning on the machine I get these messages:


BootRom Version    1.6
Memory Size:  48 MB
----------------------------------------------------------------------------


(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.


Warning: One or more EISA cards could not be configured.
          Autoselect and search will ignore unconfigured
          cards.

<...>

Thanks.
-- 
      Rafael

--------------070202080600060509010902
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Linux version 2.4.17-pa6 (raffo@inca) (gcc version 3.0.2 20010829 (prerelease)) #15 Fri Jan 11 20:20:05 EST 2002
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00006190 00000481 00000000 00000000 7795c3b3 00000000 00000004 00000072 00000072
vers  0000000b
model 9000/715
Total Memory: 48 Mb
pagetable_init
On node 0 totalpages: 12288
zone(0): 12288 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda2 HOME=/ eisa_irq_edge=3,4,5,7,9,10,11,14,15 console=tty0 sti=0 sti_font=VGA8x16 TERM=linux
Console: colour dummy device 160x64
Calibrating delay loop... 79.66 BogoMIPS
Memory: 45348k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Searching for devices...
Found devices:
1. Mirage 80 GSC Builtin Graphics (10) at 0xf8000000 [1], versions 0x10, 0x0, 0x85
2. Mirage 80 Core BA (11) at 0xf0100000 [2], versions 0x2b, 0x0, 0x81
3. Mirage 80 Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x2b, 0x0, 0x82
4. Mirage 80 Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x2b, 0x0, 0x8a
5. Mirage 80 Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x2b, 0x0, 0x8c
6. Mirage 80 Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x2b, 0x0, 0x74
7. Mirage 80 Audio (10) at 0xf0104000 [2/0/8], versions 0x2b, 0x0, 0x7b
8. Mirage 80 Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x2b, 0x0, 0x83
9. Mirage 80 Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x2b, 0x0, 0x84
10. Mirage 80 Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x2b, 0x0, 0x84
11. Mirage 80 Wax EISA BA (11) at 0xfc000000 [4], versions 0x2b, 0x0, 0x90
12. Pace Wax BA (11) at 0xf0200000 [5], versions 0x10, 0x0, 0x8e
13. Pace Core HIL (10) at 0xf0201000 [5/0/1], versions 0x10, 0x0, 0x73
14. Mirage 80 Wax RS-232 (10) at 0xf0202000 [5/0/2], versions 0x10, 0x0, 0x8c
15. Mirage 80 (0) at 0xfffbe000 [8], versions 0x619, 0x0, 0x4
16. Mirage 80 (1) at 0xfffbf000 [9], versions 0x4f, 0x0, 0x9
CPU(s): 1 x PA7100LC (PCX-L) at 80.000000 MHz
Lasi version 0 at 0xf0100000 found.
LED display at f010c000 registered
Wax at 0xf0200000 found.
Wax: HIL Keyboard-NMI registered.
Wax EISA Adapter found at 0xfc000000
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Enabled gecko-style soft power switch.
Starting kswapd
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
STI word mode ROM at f0024000, hpa=f8000000
STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1280
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 2b4ded6d, mmio: 0xf8100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0202800 (irq = 121) is a 16550A
PS/2 keyboard port at 0xf0108000 (irq 69) found, device attached.
PS/2 psaux port at 0xf0108100 (irq 69) found, device attached.
Found HIL at 0xf0201000, IRQ 126
HIL: timed out, assuming no keyboard present.
Warning : device (10, 0x10, 0x0, 0x73) NOT claimed by HIL
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 3B F2 06 IRQ 87.
82596.c $Revision: 1.27 $
SCSI subsystem driver Revision: 1.00
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2 
scsi0 : LASI SCSI 53c700
scsi0: (3:0) Synchronous at offset 8, period 100ns
  Vendor: QUANTUM   Model: XP34550S          Rev: LXY1
  Type:   Direct-Access                      ANSI SCSI revision: 02
scsi0: (3:1) Synchronous at offset 8, period 100ns
  Vendor: NEC       Model: CD-ROM DRIVE:461  Rev: 2.3d
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi0: (4:1) Synchronous at offset 8, period 124ns
Attached scsi disk sda at scsi0, channel 0, id 3, lun 0
scsi0: (3:0) Enabling Tag Command Queuing
SCSI device sda: 8890760 512-byte hdwr sectors (4552 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 4, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.12
Lasi Harmony Audio rev. 0 at 0xf0104000, using IRQ 82
sticonsole_init: searching for STI ROMs
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :    60.800 MB/sec
   8regs_prefetch:    60.800 MB/sec
   32regs    :    88.400 MB/sec
   32regs_prefetch:    88.400 MB/sec
raid5: using function: 32regs_prefetch (88.400 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
NOT FREEING INITMEM
Adding Swap: 249136k swap-space (priority -1)
eth0: link ok.

--------------070202080600060509010902--




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Subject: Re: [parisc-linux] FWD: gcc-3.0.3: ICE in reload_cse_simplify on hppa-linux
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> Then, I suggest trying with gcc-3.1 (prerelease).  It has quite a few
> bug fixes that 3.0.3 doesn't have although it hasn't been tested much
> on linux.  C and C++ definitely are in better shape.

Unfortunately 3.1 (i'm trying the 2002-01-07 snapshot) doesn't currently
build on hppa. It dies with:

stage1/xgcc -Bstage1/ -B/usr/hppa-linux/bin/ -c -DIN_GCC    -g -O2 -W
-Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H    -I. -I.
-I../../src/gcc -I../../src/gcc/. -I../../src/gcc/config
-I../../src/gcc/../include ../../src/gcc/c-lex.c -o c-lex.o
../../src/gcc/c-lex.c: In function `lex_number':
../../src/gcc/c-lex.c:1293: Internal compiler error in
dwarf2out_frame_debug_expr, at dwarf2out.c:1535
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[2]: *** [c-lex.o] Error 1
make[2]: Leaving directory `/home/randolph/build/gcc/build/gcc'
make[1]: *** [stage2_build] Error 2

Traceback says:

#0  fancy_abort (file=0x36f504 "../../src/gcc/dwarf2out.c", line=1535, 
    function=0x36f564 "dwarf2out_frame_debug_expr")
    at ../../src/gcc/diagnostic.c:1450
#1  0x000b234c in dwarf2out_frame_debug_expr (expr=0x40191750, 
    label=0x3b86d0 "*.LCFI52") at ../../src/gcc/dwarf2out.c:1535
#2  0x000b26fc in dwarf2out_frame_debug (insn=0x40191750)
    at ../../src/gcc/dwarf2out.c:1650
#3  0x0010a4d0 in final_scan_insn (insn=0x4067f960, file=0x423a10, optimize=2, 
    prescan=0, nopeepholes=0) at ../../src/gcc/final.c:2653
#4  0x00108f98 in final (first=0x403dd720, file=0x423a10, optimize=2, 
    prescan=0) at ../../src/gcc/final.c:1787
[...]

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Hi everyone,

What's a 715/64 equate to in terms of intel arches?

Here's my p90 with 48meg of ram:
Calibrating delay loop... 35.84 BogoMIPS

and my 715/64 with 128 meg of ram:
Calibrating delay loop... 63.69 BogoMIPS

Thanks,

Pete




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From: "kenneth westelinck" <kennywest1@hotmail.com>
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Subject: Re: [parisc-linux] bogomips?
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Hmm, don't know. 

My little 486DX4 100MHz, 12MB RAM:
/proc# cat ./cpuinfo 
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 4
model           : 8
model name      : 486 DX/4
stepping        : 0
fdiv_bug        : no
hlt_bug         : no
sep_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme
bogomips        : 49.66

/proc# 


regards,

Kenneth

----- Original Message ----- 
From: "Peter Lavender" <plaven@bigpond.net.au>
To: "parisc" <parisc-linux@parisc-linux.org>
Sent: Saturday, January 12, 2002 12:10 PM
Subject: [parisc-linux] bogomips?


> Hi everyone,
> 
> What's a 715/64 equate to in terms of intel arches?
> 
> Here's my p90 with 48meg of ram:
> Calibrating delay loop... 35.84 BogoMIPS
> 
> and my 715/64 with 128 meg of ram:
> Calibrating delay loop... 63.69 BogoMIPS
> 
> Thanks,
> 
> Pete
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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Hmmm....
I don't know if this is the intended operation or not (probably a question 
for the Linux tree dudes), but...

Kenneth's 486 reports at about 1/2 the clock speed (also notice the lack of a 
cpu MHz line in the report).

This Celeron reports at about 2* the clock speed. (Kernel 2.4.17)

If memory (mine) serves, my P-II system reported at appox. bogomips == cpu 
clock.  I don't recall what my Pentium or 386 system reported and have never 
had a 486.

I think I noticed the change in the relationship between bogomips and cpu 
clock early in kernel 2.2.x (while I was running the P-II system) - perhaps 
something has crept in from the Linux tree that is having this effect.

Mike

[mszick@localhost /proc]$ cat ./cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 6
model name      : Celeron (Mendocino)
stepping        : 5
cpu MHz         : 467.737
cache size      : 128 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca 
cmov
pat pse36 mmx fxsr
bogomips        : 930.61
 
[mszick@localhost /proc]$

On Saturday 12 January 2002 05:35 am, you wrote:
> Hmm, don't know.
>
> My little 486DX4 100MHz, 12MB RAM:
> /proc# cat ./cpuinfo
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 4
> model           : 8
> model name      : 486 DX/4
> stepping        : 0
> fdiv_bug        : no
> hlt_bug         : no
> sep_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 1
> wp              : yes
> flags           : fpu vme
> bogomips        : 49.66
>
> /proc#
>
>
> regards,
>
> Kenneth
>
> ----- Original Message -----
> From: "Peter Lavender" <plaven@bigpond.net.au>
> To: "parisc" <parisc-linux@parisc-linux.org>
> Sent: Saturday, January 12, 2002 12:10 PM
> Subject: [parisc-linux] bogomips?
>
> > Hi everyone,
> >
> > What's a 715/64 equate to in terms of intel arches?
> >
> > Here's my p90 with 48meg of ram:
> > Calibrating delay loop... 35.84 BogoMIPS
> >
> > and my 715/64 with 128 meg of ram:
> > Calibrating delay loop... 63.69 BogoMIPS
> >
> > Thanks,
> >
> > Pete
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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> What's a 715/64 equate to in terms of intel arches?
> 
> Here's my p90 with 48meg of ram:
> Calibrating delay loop... 35.84 BogoMIPS
> 
> and my 715/64 with 128 meg of ram:
> Calibrating delay loop... 63.69 BogoMIPS

bogomips is not a good measure of this..... try looking at the SPEC
website (www.spec.org) for the CPU95/SPECint95/SPECfp95 results.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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On Sat, 12 Jan 2002, Peter Lavender wrote:

> Hi everyone,
>
> What's a 715/64 equate to in terms of intel arches?
>
> Here's my p90 with 48meg of ram:
> Calibrating delay loop... 35.84 BogoMIPS
>
> and my 715/64 with 128 meg of ram:
> Calibrating delay loop... 63.69 BogoMIPS

As a rough guess, my 715/100 feels like a Pentium chip of roughly twice
the speed, while my C180 feels like a P2 of roughly twice the speed. Don't
know if the bogomips back that up, but that's the way they feel.




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Tom wrote:
> As a rough guess, my 715/100 feels like a Pentium chip of roughly twice
> the speed, while my C180 feels like a P2 of roughly twice the speed. Don't
> know if the bogomips back that up, but that's the way they feel.

I've heard that from a bunch of people and seems like a good rule of thumb.

Someone once told me: "bogomips is just a dick waving contest".
(apologies to any female readers who are offended).
But that statement accurately  sums up how useful bogomips
is for comparing perf.

grant



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Than my server has a rather small dick.
But they always claim, size doesn't count ;)

----- Original Message -----
From: "Grant Grundler" <grundler@dsl2.external.hp.com>
To: "Tom" <palinux@alaskatech.org>
Cc: "Peter Lavender" <plaven@bigpond.net.au>; "parisc"
<parisc-linux@parisc-linux.org>
Sent: Saturday, January 12, 2002 11:43 PM
Subject: Re: [parisc-linux] bogomips?


> Tom wrote:
> > As a rough guess, my 715/100 feels like a Pentium chip of roughly twice
> > the speed, while my C180 feels like a P2 of roughly twice the speed.
Don't
> > know if the bogomips back that up, but that's the way they feel.
>
> I've heard that from a bunch of people and seems like a good rule of
thumb.
>
> Someone once told me: "bogomips is just a dick waving contest".
> (apologies to any female readers who are offended).
> But that statement accurately  sums up how useful bogomips
> is for comparing perf.
>
> grant
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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http://www.linuxdoc.org/HOWTO/mini/BogoMips.html

For those who believe BogoMips matter..... ;-)

	Christian 


On Sat, 12 Jan 2002 15:43:06 -0700
"Grant Grundler" <grundler@dsl2.external.hp.com> wrote:

> Tom wrote:
> > As a rough guess, my 715/100 feels like a Pentium chip of roughly
twice> > the speed, while my C180 feels like a P2 of roughly twice the
speed. Don't> > know if the bogomips back that up, but that's the way they
feel.> 
> I've heard that from a bunch of people and seems like a good rule of
thumb.> 
> Someone once told me: "bogomips is just a dick waving contest".
> (apologies to any female readers who are offended).
> But that statement accurately  sums up how useful bogomips
> is for comparing perf.
> 
> grant
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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On Sun, 13 Jan 2002, Christian Suder wrote:

> For those who believe BogoMips matter..... ;-)

The document lists a HP9000/720 running HP/UX with 48 BogoMIPS. This seems 
to match Linux (Linux is even a bit faster :-) ):

# cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 1.1a
cpu             : PA7000 (PCX-S)
cpu MHz         : 50.000000
model           : 9000/720
model name      : Cobra (720)
hversion        : 0x00002000
sversion        : 0x00000481
I-cache         : 128 KB
D-cache         : 256 KB (WB)
ITLB entries    : 96
DTLB entries    : 96
BTLB fixed      : max. 4096 pages, pagesize=4096 (16MB)
BTLB fix-entr.  : 4 instruction, 4 data (0 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 49.86
software id     : 86914152

Cheers,
Jochen




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Hi All,

On my palinux box I got this gcc error while compiling a source code.

$ gcc -c -g -O3 c2.c
c.c: In function `string_match_1':
c.c:406: Internal error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

Where should I submit this? since it happen on a palinux box I dunno if the
gcc maitainer does have such a box?

Thanx in advance,
Phi


--
mailto:Philippe_Benard@hp.com
WTEC HP-UX kernel debugging tools



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On Sunday 13 January 2002 04:12 am, Christian Suder wrote:
> http://www.linuxdoc.org/HOWTO/mini/BogoMips.html
>
> For those who believe BogoMips matter..... ;-)
>
> 	Christian
>
Well, I would never claim that BogoMips is, in its self, useful for anything.

But since its code is closely related to the udelay code, which affects 
scheduling and many drivers...

Once upon a time, both my Celeron and my P-II reported approximately 1.00 * 
clock (same as above reference), then with some change of kernel version, 
jumped to 2.00 * clock.

BUT, that might have been an intentional change in the routine, or...

No promises on this one: I sometimes keep old kernels, perhaps I can find the 
"before and after" kernels where I noticed the change.

Mike




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On Sun, Jan 13, 2002 at 09:48:20AM -0600, Michael S. Zick wrote:
> Once upon a time, both my Celeron and my P-II reported approximately 1.00 * 
> clock (same as above reference), then with some change of kernel version, 
> jumped to 2.00 * clock.

yeah, that was a change prumpf made.  i forget why, but there was an
important reason.

-- 
Revolutions do not require corporate support.



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Oops,
I am once again exposed as a fool.  Please ignore my earlier copy of this 
message - I didn't read the full reference.  The change from 1.0 * clock to 
2.0 * clock is described in the reference.
Sorry folks,
Mike


On Sunday 13 January 2002 04:12 am, Christian Suder wrote:
> http://www.linuxdoc.org/HOWTO/mini/BogoMips.html
>
> For those who believe BogoMips matter..... ;-)
>
> 	Christian
>
Well, I would never claim that BogoMips is, in its self, useful for anything.

But since its code is closely related to the udelay code, which affects 
scheduling and many drivers...

Once upon a time, both my Celeron and my P-II reported approximately 1.00 * 
clock (same as above reference), then with some change of kernel version, 
jumped to 2.00 * clock.

BUT, that might have been an intentional change in the routine, or...

No promises on this one: I sometimes keep old kernels, perhaps I can find the 
"before and after" kernels where I noticed the change.

Mike




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> On Sun, Jan 13, 2002 at 09:48:20AM -0600, Michael S. Zick wrote:
> > Once upon a time, both my Celeron and my P-II reported approximately 1.00 * 
> > clock (same as above reference), then with some change of kernel version, 
> > jumped to 2.00 * clock.
> 
> yeah, that was a change prumpf made.  i forget why, but there was an
> important reason.

We changed the x86 bogomip computation because it overflowed on a 2GHz 
processor. (Yes Linux 2.0 does not work on 2GHz preventium IV 8))

In all cases bogomips serves only two other serious purposes. Comparison
of identical processors, and checking nobody sold you the wrong processor.

Even in the x86 world this is quite obvious, with a 1.5GHz AMD flattening
a 2GHz Intel on actual throughput.

Alan



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Hello

I have noticed what seems to be a mistake in the XC HowTo on=20
parisc-linux.org:

here: http://www.parisc-linux.org/toolchain/PA-Linux-XC-HOWTO-04.html

you have in section "4.4 Building Glibc" those lines:

Symlink the appropriate headers:

cd=A0$ST/parisc/hppa-linx/include
ln=A0-s=A0$ST/src/linux/include/linux=A0.
ln=A0-s=A0$ST/src/linux/include/asm=A0.

But it should be:

"cd $DEST/hppa-linux/include"

then linking as explained.


Otherwise, there's a in the same section for the configure options:
$ST/src/glibc/configure=A0--host=3Dhppa-linux=A0--build=3D$MACH\
=A0-prefix=3D$DEST/hppa-linux=A0--with-headers=3D$ST/src/linux/include\
=A0--disable-profile=A0--without-cvs=A0--enable-add-ons

It should be:
$ST/src/glibc/configure=A0--host=3Dhppa-linux=A0--build=3D$MACH\
=A0--prefix=3D$DEST/hppa-linux=A0--with-headers=3D$ST/src/linux/include\
=A0--disable-profile=A0--without-cvs=A0--enable-add-ons

it's the "--prefix=3D" which must be typed with 2 "-".


Thibaut VARENE
PA/Linux ESIEE Team
http://www.esiee.fr/puffin

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Hello


I have noticed what seems to be a mistake in the XC HowTo on
parisc-linux.org:


here:
=
<underline><color><param>1A1A,1A1A,FFFF</param>http://www.parisc-linux.org=
/toolchain/PA-Linux-XC-HOWTO-04.html</color></underline>


you have in section "4.4 Building Glibc" those lines:


<fontfamily><param>Times New Roman</param><bigger><bigger>Symlink the
appropriate headers:=20


</bigger></bigger></fontfamily><fixed><fontfamily><param>Courier =
New</param><smaller>cd=A0$ST/parisc/hppa-linx/include

ln=A0-s=A0$ST/src/linux/include/linux=A0.

ln=A0-s=A0$ST/src/linux/include/asm=A0.

</smaller></fontfamily></fixed><fontfamily><param>Times New =
Roman</param><bigger><bigger>

</bigger></bigger></fontfamily>But it should be:


"cd $DEST/hppa-linux/include"


then linking as explained.



Otherwise, there's a in the same section for the configure options:

<fixed><fontfamily><param>Courier =
New</param><smaller>$ST/src/glibc/configure=A0--host=3Dhppa-linux=A0--buil=
d=3D$MACH\

=A0-prefix=3D$DEST/hppa-linux=A0--with-headers=3D$ST/src/linux/include\

=A0--disable-profile=A0--without-cvs=A0--enable-add-ons

</smaller></fontfamily></fixed>

It should be:

<fixed><fontfamily><param>Courier =
New</param><smaller>$ST/src/glibc/configure=A0--host=3Dhppa-linux=A0--buil=
d=3D$MACH\

=A0--prefix=3D$DEST/hppa-linux=A0--with-headers=3D$ST/src/linux/include\

=A0--disable-profile=A0--without-cvs=A0--enable-add-ons

</smaller></fontfamily></fixed>

it's the "--prefix=3D" which must be typed with 2 "-".



Thibaut VARENE

PA/Linux ESIEE Team

=
<underline><color><param>1A1A,1A1A,FFFF</param>http://www.esiee.fr/puffin<=
/color></underline>=

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phi 4369 wrote:
> Where should I submit this?

iirc, the error output tells one where to submit the bug report.
Perhaps that has changed.

> since it happen on a palinux box I dunno if the
> gcc maitainer does have such a box?

J. David Anglin is HPPA co-maintainer and he watches this list.
And yes - he has several parisc boxes.

thanks,
grant



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> phi 4369 wrote:
> > Where should I submit this?

File it in gnats:
<http://gcc.gnu.org/cgi-bin/gnatsweb.pl>.

The more information that you can provide the better.  One of the first
things to do is generate preprocessed source, then run cc1 under a
debugger to find where the segementation fault occurred.

> > since it happen on a palinux box I dunno if the
> > gcc maitainer does have such a box?

However, I don't yet have a working palinux system and neither does
Jeff Law as far as I am aware.  If the problem is generic, then with
luck it can be fixed fairly easily.  However, the odds are that the
problem is specific to palinux.

One of the problems that we face is that the deb version of gcc has
been quite heavily hacked for parisc-linux, and thus it isn't supportable.
I hope that we can get one of the standard releases or the mainline code
working as soon as possible.  There are still problems with gdb and
binutils on palinux (eg., passing floats in dynamic calls, etc).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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So the palinux-0.9-README file says "YOU MUST INSTALL 'sid'", blah, =
blah, blah...
I get "failed getting release file file:/instmnt/dists/sid/Release"
The woody one installs OK, but I am not sure how "crippled" I may be =
with it.
Any ideas?  What more can I tell you to help with the diagnosis?
Geezer

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2712.300" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#f0e8d8>
<DIV><FONT face=3D"Comic Sans MS">So the palinux-0.9-README file says =
"YOU MUST=20
INSTALL 'sid'", blah, blah, blah...</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS">I get "failed getting release file=20
file:/instmnt/dists/sid/Release"</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS">The woody one installs OK, but I am =
not sure how=20
"crippled" I may be with it.</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS">Any ideas?&nbsp; What more can I tell =
you to=20
help with the diagnosis?</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS">Geezer</FONT></DIV></BODY></HTML>

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Subject: [parisc-linux] atomic_t
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Just thinking about atomic_set taking the spinlock to assure
exclusivity...  I thought we could eliminate it.

Here's the current code:

static __inline__ void __atomic_set(atomic_t *v, int i) 
{
        unsigned long flags;
        SPIN_LOCK_IRQSAVE(ATOMIC_HASH(v), flags);

        v->counter = i;

        SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(v), flags);
}

static __inline__ int __atomic_add_return(int i, atomic_t *v)
{
        int ret;
        unsigned long flags;
        SPIN_LOCK_IRQSAVE(ATOMIC_HASH(v), flags);

        ret = (v->counter += i);

        SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(v), flags);
        return ret;
}

The legitimate effect of having two processors do this at the same time
are:

atomic_t v = 3

case 1:

atomic_add_return(1, &v)
atomic_set(&v, 1)
result: v = 1, a_a_r returns 4.

or case 2:

atomic_set(&v, 1)
atomic_add_return(1, &v)
result: v = 2, a_a_r returns 2.

The spinlocks guarantee this behaviour, but let's look at what happens
if we remove the spinlock from atomic_set.  Now atomic_set is just an
assignment, and can occur at any point during atomic_add_ret.  We'll have
to drop to psuedo-assembler for this.

atomic_add_ret becomes:

a) lock
b) load v into register r
c) add 1 to r
d) store r to v
e) unlock
f) return r

atomic_set (store 1 to v) can appear to occur at any point -- the CPU
ref manual guarantees it won't cause any problems.

Before step b leads to case 2.  after step d leads to case 1.  between
steps b and d, it's as if the atomic_set _never_happened_.  It results
in v=4, a_a_r returns 4.

The question is whether any code relies on this behaviour.  It probably
does in some of the messier bits of networking :-(

-- 
Revolutions do not require corporate support.



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=?ISO-8859-1?Q?Thibaut_VAR=C8NE?= wrote:
> I have noticed what seems to be a mistake in the XC HowTo on=20
> parisc-linux.org:

Thibaut,
Carlos O'Donell "owns" this page.
Could you make a patch for Carlos to review?

The source file is visible in CVS at :

	web/src/toolchain/PA-Linux-XC-HOWTO-04.x

(where web is the CVS repository).

If carlos thinks it's ok, then I can commit the change.
(delahaym or marteaut are also welcome to commit the patch).

thanks,
grant

ps. anyone is welcome to review and submit patches for the website
   just like the parisc-linux source tree.




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"geezer" wrote:
> So the palinux-0.9-README file says "YOU MUST INSTALL 'sid'", blah, =
> blah, blah...

Uhm...which release? URL or from an ISO?

> I get "failed getting release file file:/instmnt/dists/sid/Release"
> The woody one installs OK, but I am not sure how "crippled" I may be =
> with it.
> Any ideas?  What more can I tell you to help with the diagnosis?

For 0.9.3, woody is correct. You won't be very crippled at all.

With "sid", plan on hppa being broken occasionally. I expect "woody"
to be more stable - IMHO better for folks who just want to use debian.
Newer kernel (compared to 0.9.3 ISO) from ftp.parisc-linux.org
will work for either release.

For the adventerous, edit the /etc/apt/sources.list to point
to "sid" like this:

deb http://http.us.debian.org/debian sid main contrib non-free
deb http://non-us.debian.org/debian-non-US sid/non-US main contrib non-free

Then do "apt-get update" and "apt-get dist-upgrade".

grant



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ls,

I want to connect my pc as a terminal to a HP9000 so that I can (try to) install parisc-linux. 

Does anybody know if that is possible? 

And if so, is there someone who can give me de pin-out of the cable i need?

Thanks in advantage

Johan


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> I want to connect my pc as a terminal to a HP9000 so that I can (try to) install parisc-linux. 
> 
> Does anybody know if that is possible? 
> 
> And if so, is there someone who can give me de pin-out of the cable i need?

standard null-modem cable, but you'll have to do some work to get a
G40 running.  Same issues as E and K class.

-- 
Revolutions do not require corporate support.



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Matthew Wilcox wrote:
> Just thinking about atomic_set taking the spinlock to assure
> exclusivity...  I thought we could eliminate it.

You are only looking at interactions between atomic_set
and atomic_add_return. Aren't there potentialially other
types of interactions with other atomic operations?
But I don't know. Alan Cox?

...
> Before step b leads to case 2.  after step d leads to case 1.  between
> steps b and d, it's as if the atomic_set _never_happened_.  It results
> in v=4, a_a_r returns 4.

I agree with the analysis.

But someone thought it was time to reset the counter. And if
it "never happened", then whoever is looking for 'v == 1' will
never see it.

> The question is whether any code relies on this behaviour.  It probably
> does in some of the messier bits of networking :-(

Even if that code doesn't exist today, it might exist in the future.
I don't want to bet on corner cases with the semantics.
Those types of bugs are hard to reproduce and hard to debug.


thanks,
grant



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On Sun, Jan 13, 2002 at 09:09:09PM -0700, Grant Grundler wrote:
> You are only looking at interactions between atomic_set
> and atomic_add_return. Aren't there potentialially other
> types of interactions with other atomic operations?
> But I don't know. Alan Cox?

Not on PA... look at <asm/atomic.h>.  There's only 3 primitives, all
other atomic ops are defined in terms of those.

> > Before step b leads to case 2.  after step d leads to case 1.  between
> > steps b and d, it's as if the atomic_set _never_happened_.  It results
> > in v=4, a_a_r returns 4.
> 
> I agree with the analysis.
> 
> But someone thought it was time to reset the counter. And if
> it "never happened", then whoever is looking for 'v == 1' will
> never see it.

It's a race though; they can't guarantee to see it anyway.

> Even if that code doesn't exist today, it might exist in the future.
> I don't want to bet on corner cases with the semantics.
> Those types of bugs are hard to reproduce and hard to debug.

yeah, wasn't planning on committing.

-- 
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> >
> > But someone thought it was time to reset the counter. And if
> > it "never happened", then whoever is looking for 'v == 1' will
> > never see it.
>
> It's a race though; they can't guarantee to see it anyway.
>

Yes, it is a race in that you can't be guaranteed that you will ever see
the value equal to 1. But you should be guaranteed that it WAS reset.

For example:

    1) Initialize counter to 1.
    2) Increment counter by 1 each time event "X" occurs using
       atomic_add_return.
    3) Reset counter to 1 each time event "Y" occurs using atomic_set.
    4) Signal an error if the counter ever exceeds some threshold
       value, i.e. it is an error if too many "X" events occur without
       and intervening "Y" event.

In the above scenario you could not be guaranteed that you would ever see
the counter at one (or any particular value), but you could falsely
trigger the error condition if the resets were lost (by removing the
spinlocks from atomic_set).

John



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Matthew Wilcox wrote:
> Not on PA... look at <asm/atomic.h>.  There's only 3 primitives, all
> other atomic ops are defined in terms of those.

Ah ok - you are right. atomic_read() doesn't use the lock and
that only leaves the other two.

> > But someone thought it was time to reset the counter. And if
> > it "never happened", then whoever is looking for 'v == 1' will
> > never see it.
> 
> It's a race though; they can't guarantee to see it anyway.

hmmm...Most people write code with the intent of seeing *some*
event (eg v < 0).  Ie, if it didn't matter, then we don't need
the code.  I'd like to believe folks are usually more careful
than that.  I need to think about this some more though.

grant



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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> > exclusivity...  I thought we could eliminate it.
> 
> You are only looking at interactions between atomic_set
> and atomic_add_return. Aren't there potentialially other
> types of interactions with other atomic operations?
> But I don't know. Alan Cox?

We had a discussion about some of this on #kernel. Its not clear. The
x86 port "knows" that writes are going to be atomic. It means that

	CPU1			CPU2
value=4
	atomic_set=0		atomic_add +1

will result in an addition to the set value, or an addition then the
entire result discarded for the set value. It won't (except in obscure
hardware bug cases 8)) result in the set being lost during the add

ie you might see 0 after those operations, or you might see 1, but you
won't see 5 after both have completed.



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Subject: Re: [parisc-linux] Re: sid vs woody (was 715/50)
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> For the adventerous, edit the /etc/apt/sources.list to point
          ~~~~~~~~~~~
> to "sid" like this:
>
> deb http://http.us.debian.org/debian sid main contrib non-free
> deb http://non-us.debian.org/debian-non-US sid/non-US main contrib non-free
Shouldn't one use stable, testing and unstable, which are of course at the
moment linked to potato, woody and sid respectively? Otherwise you will stay
with sid even when it is declared stable (or unavailable) - and you don't
want that, do you?  ;-)

ad




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Hi out there!
I'm trying to install the 0.9.3 CD on a HP9000/E45/A3130AW.
I managed to boot the image, but then I got this message on the serial 
line console:
"If this is the last message you see, you may need to switch your 
console. This is a common symptom - search the FAQ and mailing lists"
but I found nothing, since I'm asking you... :-(
What's happened?

Thank you for your patience.

Rudy
(Italy)




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Hi,

I'm trying to install 0.9.3 with a graphics console on a C240, but the 
system stops at:
Branching the kernel entry point 0x00100000.

I've seen reports of people succeeding it with a serial console. Before 
i try to find out how that works (i've never used a serial console 
before), i'm wondering if there will be a 0.9.4 in the near future that 
supports this setup.

Thanks,

Arjen Hommersom





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Thibaut VARENE wrote:

> Hi,
>
> about your problem you might find answers there:
> http://lists.parisc-linux.org/pipermail/parisc-
> linux/2001-December/014912.html

This person succeeded with a serial console. Any reports of people 
succeeding with a graphics console?

> Could you please tell us what procedure you used to install (CD, 
> network...), what is you exact hardware configuration, what boot args 
> you exactly typed, and any further info you might think useful to add...

I'm trying to do a network install. I installed bootpd on an Debian/i386 
machine and i boot with
 > boot lan
I chose not to interact with IPL, so it used default boot args.

For hardware.. it's a C240 and sam reports a HP visualize FX2(4) as a 
graphics card that is connected to a VGA monitor which works ok in 
HP-UX. If you can tell me how to get more detailed hardware information 
in HP UX, i'll be happy to provide it.

>>
>> I'm trying to install 0.9.3 with a graphics console on a C240, but 
>> the system stops at:
>> Branching the kernel entry point 0x00100000.
>>
>> I've seen reports of people succeeding it with a serial console. 
>> Before i try to find out how that works (i've never used a serial 
>> console before), i'm wondering if there will be a 0.9.4 in the near 
>> future that supports this setup.
>>

Arjen Hommersom





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>
> For hardware.. it's a C240 and sam reports a HP visualize FX2(4) as a 
> graphics card that is connected to a VGA monitor which works ok in 
> HP-UX. If you can tell me how to get more detailed hardware information 
> in HP UX, i'll be happy to provide it.

Well, I bet this specific off board graphic card is not supported.
Although onboard controllers are getting more and more supported, it is 
not the case for specific HP hardware.

As there's no core graphics for your box, I suggest you to try with 
serial console.


Thibaut VARENE
PA/Linux ESIEE Team
http://www.esiee.fr/puffin




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On Mon, Jan 14, 2002 at 02:11:42PM +0100, Rodolfo Baselli wrote:
> Hi out there!
> I'm trying to install the 0.9.3 CD on a HP9000/E45/A3130AW.
> I managed to boot the image, but then I got this message on the serial 
> line console:
> "If this is the last message you see, you may need to switch your 
> console. This is a common symptom - search the FAQ and mailing lists"
> but I found nothing, since I'm asking you... :-(
> What's happened?

The E45 isn't supported, unfortunately.  See the mailing list archives
for details, but basically the serial port needs a new driver and the
SCSI card needs a new driver.  Documentation for both of these cards is
not publically available.

-- 
Revolutions do not require corporate support.



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aderesch@fs.tum.de (Andreas Deresch) writes:

> > deb http://http.us.debian.org/debian sid main contrib non-free
> > deb http://non-us.debian.org/debian-non-US sid/non-US main contrib non-free
> Shouldn't one use stable, testing and unstable, which are of course at the
> moment linked to potato, woody and sid respectively? Otherwise you will stay
> with sid even when it is declared stable (or unavailable) - and you don't
> want that, do you?  ;-)

"It depends."

First of all, sid won't ever be stable.  Sid was the kid in the Toy Story
movie who was sort of scary and should never be let out of the house... (well,
actually he's the character I most identified with in the movie, but we won't
go there... :-) and it's the *permanent* codename for Debian unstable.  In 
our new pool-based scheme, new names get declared for the 'testing' release 
and become stable with time.  So, 'woody' is now the same as 'testing' and 
will be the same as 'stable' when it is released... at which point a new name
will be assigned for the new testing release, and so on.

Sometimes it makes sense to use the release tokens.  You may want to always
run 'stable' on a machine to get the latest stable release, for example.  In
other cases, it makes much more sense to track a particular named release and
have conscious control over when you hop from one release to another.  If you
want to track unstable, either 'sid' or 'unstable' is fine.  If you want to
start with woody now and stay with it when it goes stable, 'woody' might be
better than 'testing' to use in the sources.list file.

Hope that helps.  For what it's worth, I always use the code names and exert
explicit control over when I hop from one release to another... but I've helped
configure production servers with files that say 'stable' and also include
entries for the security.debian.org updates (crucial if tracking stable!).

Bdale



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Bdale Garbee wrote:
> Hope that helps.  For what it's worth, I always use the code names and exert
> explicit control over when I hop from one release to another...

This is basically how I use it too...thanks bdale for clarifying.

grant



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Subject: [parisc-linux] Xfree86 error
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Hi all,

Since I upgrade XFree86 to release 4.1.0-11, I got following error message:

(**) Option "CorePointer"
(**) Configured Mouse: Core Pointer
(**) Option "Device" "/dev/psaux"
(==) Configured Mouse: Buttons: 3
(**) Option "Emulate3Buttons" "true"
(**) Configured Mouse: Emulate3Buttons, Emulate3Timeout: 50
(**) Option "ZAxisMapping" "4 5"
(**) Configured Mouse: ZAxisMapping: buttons 4 and 5
(II) XINPUT: Adding extended input device "Configured Mouse" (type: MOUSE)
Could not init font path element unix/:7100, removing from list!

even thought ps -ef | grep xfs answer
root  219  1 0 Jan11 ?  00:00:00  /usr/bin/X11/xfs -daemon

Any idea?

Thanks in advance for help,
        Joel

PS: xfs was not used before (that is why I do not notice it before)


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From: Jochen Friedrich <jochen@scram.de>
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Subject: [parisc-linux] IBM TR patch
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  This message is in MIME format.  The first part should be readable text,
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Hi there,

this patch fixes some endianess issues of the current ibmtr driver. 
Although the current uses of htons() etc look correct, they are not: the 
writew/readw API already do the byte swap on big endian machines.

Additionally, i added a switch to turn off IPv4 summing. This might be 
needed for IPv6 and is absolutely necessary on HP PARISC platform with the 
current broken ioremap implementation. The IPv4 summing is the only place 
in the driver that accesses memory directly without the readX or 
memcpy_fromio macros.

With the patch, the ibmtr driver should work on big endian machines with 
ISA/EISA bus (e.g. 68000 and HP PARISC).

On PARISC, the card gets initialized and joins the ring, but due to the 
ISA memory access bug, it will receive garbage on memory regions with 
(ISA memory & 0x300) == 0.

Cheers,
Jochen

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Subject: [parisc-linux] serial breakout box
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Hello,

I installed Debian on a pa-risc workstation.  Linux doesn't support the HIL
mouse, so I tried a serial mouse.  The serial port on the workstation seems
different: is 25 pin female (as opposed to male like a PC).  I can log into
the system through the serial port using Kermit.  But I must first set
carrier-watch off.  I am pretty sure my cable is right.  This leads me to
believe the serial port works, but that there is something unusual about it.

The serial mouse works fine going through a 9pin-25pin adapter to a PC
running Linux.  But it doesn't work at all going through the same adapter
(plus a gender changer) to the hp workstation.  I have also tried going
through a normal serial cable (to cross over transmit and receive),
with no luck.

Does anyone here have a rs232 breakout box they would be willing to loan
(or possibly sell) me?  I am interested in making this serial mouse work.
I would also be grateful for any tips from someone more experienced with
this hardware.

Thanks,

Ben

ps.
This is an Apollo 400 which has been upgraded to a 715T/50 (Trailways-50).



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] Installation console problem
Date: Mon, 14 Jan 2002 22:52:08 +0100
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Hello !

Your machine needs a very new kernel with my new driver handling
the console. The multi-serial board, which is used on the server 
(I have an E55) is not supported by Linux yet, but you can use
the PDC console driver on the server to boot.

For the SCSI and the parallel port, you have no chance, yet, to
boot the machine. So you can only boot the machine diskless via
NFS root, but it runs OK (ok, diskless server is quite a bit for
hackers only ...)

You need a current kernel (I don't know, if the PCD console driver
is already installed on the 0.9.3, so fetch a kernel, and activate
the PDC console driver under non-standard serial devices under the
character device stuff. There you also get a help, how to setup all
that stuff (mknod /dev/ttyB0, etc....). The hole configuration is
quite simple to do, if you know some basics.

But the problem you see, is not directly the problem concerning the
serial console (but you will come to this problem some seconds later
...). Very often my PA RISC boxes block after the sentence
"If this is the last message you see, ...", but simple wait here,
half a minute or some. But after a couple of further lines, you
will have the console problem, and then you need the setup with
the PDC console driver.

With friendly regards
Christoph P.


Rodolfo Baselli wrote:
> 
> Hi out there!
> I'm trying to install the 0.9.3 CD on a HP9000/E45/A3130AW.
> I managed to boot the image, but then I got this message on the serial
> line console:
> "If this is the last message you see, you may need to switch your
> console. This is a common symptom - search the FAQ and mailing lists"
> but I found nothing, since I'm asking you... :-(
> What's happened?
> 
> Thank you for your patience.
> 
> Rudy
> (Italy)
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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collver@linuxfreemail.com writes...

> Hello,
> 
> I installed Debian on a pa-risc workstation.  Linux doesn't support the HIL
> mouse, so I tried a serial mouse.

HIL is supported for some systems. You mention that your system is a 715T/50, 
I don't know about support for that one. Have you determined that it won't 
work for you? I'm sure the people working on HIL support would like to hear 
about what you find.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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Subject: Re: [parisc-linux] serial breakout box
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On Mon, Jan 14, 2002 at 03:18:33PM -0700, Matt Taggart wrote:
> HIL is supported for some systems. You mention that your system is a 715T/50, 
> I don't know about support for that one. Have you determined that it won't 
> work for you? I'm sure the people working on HIL support would like to hear 
> about what you find.

I haven't seen any code to support HIL mice, only HIL keyboards.  Or am
I not looking hard enough?

-- 
Revolutions do not require corporate support.



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Matthew Wilcox writes...

> On Mon, Jan 14, 2002 at 03:18:33PM -0700, Matt Taggart wrote:
> > HIL is supported for some systems. You mention that your system is a 715T/5
> 0, 
> > I don't know about support for that one. Have you determined that it won't 
> > work for you? I'm sure the people working on HIL support would like to hear
>  
> > about what you find.
> 
> I haven't seen any code to support HIL mice, only HIL keyboards.  Or am
> I not looking hard enough?

Doh! My mistake. I thought mice were working as well.

Sorry for the confusion,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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In the kernel config, under Character devices, theres "HIL keyboard support" and it says that "There are vestiges of mouse support in the driver, but it is 
probably not working.". This may be somthing

--jbit
Matthew Wilcox wrote:

> On Mon, Jan 14, 2002 at 03:18:33PM -0700, Matt Taggart wrote:
> 
>>HIL is supported for some systems. You mention that your system is a 715T/50, 
>>I don't know about support for that one. Have you determined that it won't 
>>work for you? I'm sure the people working on HIL support would like to hear 
>>about what you find.
>>
> 
> I haven't seen any code to support HIL mice, only HIL keyboards.  Or am
> I not looking hard enough?
> 
> 



_________________________________________________________
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Subject: [parisc-linux] Re: [lug] serial breakout box
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The breakout box is probably most convenient.  I've never had access
to one.  But the first thing you need to determine is if you need
to crossover or not.  You can do that with just a voltmeter.

Pin 7 is GND.  Pins 2 and 3 are the input and outputs, not necessarily
in that order.  Measure from 7 to 2.  Measure from 7 to 3.  One
of them will be close to 0V.  The other will be much higher.  I think
-10V or something like that.  The pin with the higher voltage is
the output.

Do the same thing on the other system also using the 25 pin connector.
Then make sure you are not connecting the output to the output.
--
Allen Brown
  work: Agilent Technologies      non-work: http://www.peak.org/~abrown/
        allen_brown@agilent.com	            abrown@peak.org
  Where are we going? And what's with this hand basket? --- George Carlin



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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Problems with lasi_82596.c [CONFIG_IOMMU_CCIO]
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PA,

Maybe I'm playing too quickly (recent CVS slurp, 2.4.17-pa10)

Compling kernel.

./include/asm-parisc/pci.h

    248 #ifdef CONFIG_IOMMU_CCIO
    249 struct parisc_device;
    250 struct ioc;
    251 void * ccio_get_iommu(struct parisc_device *dev);
    252 struct pci_dev * ccio_get_fake(struct parisc_device *dev);
    253 void ccio_extend_mmio_range(struct ioc *ioc);
    254 struct resource * ccio_find_parisc_resource(struct parisc_device *dev);
    255 #else /* !CONFIG_IOMMU_CCIO */
    256 #define ccio_get_iommu(dev) do { } while (0)
--> 257 #define ccio_get_fake(dev) do { } while (0)
    258 #define ccio_extend_mmio_range(ioc) do { } while (0)
    259 #define ccio_find_parisc_resource(x) &iomem_resource
    260 #endif /* !CONFIG_IOMMU_CCIO */

Which is included by lasi_82596.c there are some alternate
defines for the case where there is no IOMMU.

However in the lasi_82596 driver we see...

./drivers/net/lasi_82596.c

   1510 static int __devinit
   1511 lan_init_chip(struct parisc_device *dev)
   1512 {
   1513         struct  net_device *netdevice;
   1514         int     retval;
   1515 
   1516         if (num_drivers >= MAX_DRIVERS) {
   1517                 /* max count of possible i82596 drivers reached */
   1518                 return -ENODEV;
   1519         }
   1520 
-> 1521         fake_pci_dev = ccio_get_fake(dev);
   1522 
   1523         if (!dev->irq) {
   1524                 printk(KERN_ERR __FILE__ ": IRQ not found for i82596 at 0x%lx\n", dev->hpa);
   1525                 return -ENODEV;
   1526         }


Which on line 1521 clearly relies on ccio_get_fake(dev) to return
a value... and thus causing the kernel build to fail without any
IOMMU. Is this correct?

When the config option says:

CONFIG_IOMMU_CCIO:
The U2/UTurn is a bus converter with io mmu present in the Cxxx, D,
J, K, and R class machines.  Compiling this driver into the kernel will
not hurt anything, removing it will reduce your kernel by about 14k. 
If unsure, say Y.                                                                                     
Does a 715/50 have a U2/UTurn IOMMU or anything similar? 
(Currently perusing docs)

The kernel does compile with this option on... but it won't with
the option off. Any directions? Change the define to return some value?

c.




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Problems with lasi_82596.c [CONFIG_IOMMU_CCIO]
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On Tue, Jan 15, 2002 at 12:51:15AM -0500, Carlos O'Donell Jr. wrote:
>     255 #else /* !CONFIG_IOMMU_CCIO */
>     256 #define ccio_get_iommu(dev) do { } while (0)
> --> 257 #define ccio_get_fake(dev) do { } while (0)
> -> 1521         fake_pci_dev = ccio_get_fake(dev);

My fault, fixing now.

-- 
Revolutions do not require corporate support.



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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] LMBench on SMP A500
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Hello Parisc-linux hackers,

I ran the lmbench mark sweet against an dual-processor A500.  I have
attached the results of the benchmark for people to review.

I am not convinced of the validity of the benchmark because the
following message repeatedly showed up in dmesg:


do_page_fault() pid=22449 command='lat_sig' type=15 address=0x40019000
vm_start = 0x40019000, vm_end = 0x4001a000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001111 Not tainted
r00-03  0000000000000000 fffffffffffff000 0000000000011f3b
0000000040019000
r04-07  00000000bff00410 00000000bff001c8 0000000000027a32
0000000000000003
r08-11  0000000000027a72 0000000000000000 00000000000cea08
00000000000cf148
r12-15  0000000000000000 00000000000cafe8 00000000ffffffff
0000000000000000
r16-19  0000000000000000 00000000000b9e9c 0000000000000000
0000000000000001
r20-23  000000000000004e 00000000400cf460 0000000000000000
0000000000000008
r24-27  0000000000000000 0000000000000000 0000000000027b4c
0000000000027870
r28-31  0000000000000000 0000000000000000 00000000bff00500
00000000400cf46b
sr0-3   00000000002bcf00 00000000002bcf00 0000000000000000
00000000002bcf00
sr4-7   00000000002bcf00 00000000002bcf00 00000000002bcf00
00000000002bcf00

but I wanted to throw the results out for discussion.

Thanks,

- Ryan



--=-gqczsLiozeWrux9wGBjI
Content-Disposition: attachment; filename=lmbench.rbrad
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Content-Type: text/plain; charset=ISO-8859-1

                 L M B E N C H  2 . 0   S U M M A R Y
                 ------------------------------------


Basic system parameters
----------------------------------------------------
Host                 OS Description              Mhz
                                                   =20
--------- ------------- ----------------------- ----
gsyprf11. Linux 2.4.17-        hppa64-linux-gnu  443
gsyprf11. Linux 2.4.17-        hppa64-linux-gnu  443
gsyprf11. Linux 2.4.17-        hppa64-linux-gnu  443

Processor, Processes - times in microseconds - smaller is better
----------------------------------------------------------------
Host                 OS  Mhz null null      open selct sig  sig  fork exec =
sh =20
                             call  I/O stat clos TCP   inst hndl proc proc =
proc
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- =
----
gsyprf11. Linux 2.4.17-  443 0.71 1.38 6.81 8.42  80.2 2.06 16.0 17.K 37.K =
74.K
gsyprf11. Linux 2.4.17-  443 0.71 1.39 6.77 8.42  80.6 2.06 16.0 17.K 37.K =
74.K
gsyprf11. Linux 2.4.17-  443 0.71 1.39 6.79 8.42  80.3 2.06 16.0 17.K 37.K =
74.K

Context switching - times in microseconds - smaller is better
-------------------------------------------------------------
Host                 OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
                        ctxsw  ctxsw  ctxsw ctxsw  ctxsw   ctxsw   ctxsw
--------- ------------- ----- ------ ------ ------ ------ ------- -------
gsyprf11. Linux 2.4.17- 5.640 5.4400 4.6900 6.1000   18.3    30.2    93.0
gsyprf11. Linux 2.4.17- 5.430 5.4100 5.0300 6.9200   21.2    30.6    92.9
gsyprf11. Linux 2.4.17- 5.570 5.3800 5.0400 5.6200   19.4    30.0    94.3

*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host                 OS 2p/0K  Pipe AF     UDP  RPC/   TCP  RPC/ TCP
                        ctxsw       UNIX         UDP         TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
gsyprf11. Linux 2.4.17- 5.640  26.2 37.1             107.5       4977
gsyprf11. Linux 2.4.17- 5.430  31.6 37.1             108.4       4977
gsyprf11. Linux 2.4.17- 5.570  27.1 37.8             107.0       4932

File & VM system latencies in microseconds - smaller is better
--------------------------------------------------------------
Host                 OS   0K File      10K File      Mmap    Prot    Page=09
                        Create Delete Create Delete  Latency Fault   Fault=20
--------- ------------- ------ ------ ------ ------  ------- -----   -----=20
gsyprf11. Linux 2.4.17-   40.0   10.0  270.0   50.0  1480.0K 550.0       =20
gsyprf11. Linux 2.4.17-   40.0   10.0  270.0   60.0  1480.0K 557.9    14.0
gsyprf11. Linux 2.4.17-   40.0   10.0  280.0   60.0  1480.0K 550.0    20.0

*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------
Host                OS  Pipe AF    TCP  File   Mmap  Bcopy  Bcopy  Mem   Me=
m
                             UNIX      reread reread (libc) (hand) read wri=
te
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- ---=
--
gsyprf11. Linux 2.4.17- 51.3 81.0 68.5   78.5  483.7  204.9  206.5 483. 455=
.0
gsyprf11. Linux 2.4.17- 51.3 81.0 68.8   78.5  483.7  200.3  204.9 488. 458=
.9
gsyprf11. Linux 2.4.17- 51.3 81.0 68.6   78.5  483.7  195.9  198.8 483. 440=
.1

Memory latencies in nanoseconds - smaller is better
    (WARNING - may not be correct, check graphs)
---------------------------------------------------
Host                 OS   Mhz  L1 $   L2 $    Main mem    Guesses
--------- -------------  ---- ----- ------    --------    -------
gsyprf11. Linux 2.4.17-   443

--=-gqczsLiozeWrux9wGBjI--




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Subject: [parisc-linux] Solved with kernel 2.4.17-pa11 (was Re: Xfce -3.8.12b error)
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Hi all,

Quoting joel.soete@freebel.net:

> Hi all,
> 
> 
> xfwm message (type SessionInit):  X Session Manager not available
> Using builtin session management instead
> 
> aaaa: 1000 1000 1000
> Gdk-ERROR **: BadAccess (attempt to access private resource denied)
>   serial 320 error_code 10 request_code 129 minor_code 3
> Gdk-ERROR **: BadAccess (attempt to access private resource denied)
>   serial 321 error_code 10 request_code 129 minor_code 3
> 
> What ever the kernel I used (2.4.9 or 2.4.17-pa6).

Against all odds, the error is solved with kernel 2.4.17-pa11.

Have nice day too,
       Joel

> 
> I also notice that if I remove .xsession and .xfce then re-run
> xfce_setup, the
> .xsession is not recreated.
> 
> Thanks in advance for help,
>         Joel
> 
> 
> -------------------------------------------------
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On Fri, Jan 11, 2002 at 07:16:35PM -0700, chenhp@hpsgnsw.sgp.hp.com wrote:
> Hi,
> I'm wondering to know if vmware can work on PA-Linux ?

Bochs works :)  Tried it out earlier today, but just with
FreeDOS.  Nothing more complex.

http://bochs.sourceforge.net/

-- 
Michael Wood <mwood@its.uct.ac.za>



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Subject: [parisc-linux] New Version!! (was Correction for the PA-RISC/Linux Boot HOWTO at ESIEE's web site.)
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Hi all,

        As Rafael Herrera did, I would like your feedback from my new
version of PA-RISC/Linux Boot HOWTO.
http://mkhppa1.esiee.fr/parisc-linux-boot/parisc-linux-boot/index.html

-I added a complete chapter about compiling a kernel for HP PA-RISC system.
-I did a complete review of the text b/c of the progress of the port
-I added a note for users that are not using Debian that you should
blame the absence of standard for the default parameters more than the
guy who did this howto :-)
(b/c there are a lot of distro for Linux and that's great but I can't do
a step by step for each of them :-) )

Please, if you have any comment to make about this text, could you reply
to me because I would like update the version of Linuxdoc with a minimum
of errata.

Thomas.
ESIEE Team




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Subject: [parisc-linux] gpm 1.19.6-9 Broken?
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Hi all,

I do my daily apt-get dist-upgrade which update my gpm package to release indice
-9 and it failled to start with daemons.log following error messages:

Jan 15 14:00:35 palinux /usr/sbin/gpm[184]: PS/2 mouse failed init
Jan 15 14:00:35 palinux /usr/sbin/gpm[184]: oops() invoked from gpm.c(1019)
Jan 15 14:00:35 palinux /usr/sbin/gpm[184]: mouse initialization failed:
Inappropriate ioctl for device
Jan 15 14:02:10 palinux /usr/sbin/gpm[241]: PS/2 mouse failed init: Unable to
set 1:1 scale.
Jan 15 14:02:10 palinux /usr/sbin/gpm[241]: oops() invoked from gpm.c(1019)
Jan 15 14:02:10 palinux /usr/sbin/gpm[241]: mouse initialization failed:
Resource temporarily unavailable

Same problem with all kernel, so came back to release -5 and it works back

Any idea (it is only hppa problem?) ?

Thanks in advance for help,
        joel


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> this patch fixes some endianess issues of the current ibmtr driver. 
> Although the current uses of htons() etc look correct, they are not: the 
> writew/readw API already do the byte swap on big endian machines.

the write/read macros are defined for pci accesses, and as such take a
LE point of view with respect to memory accesses. I take it that you are
not accessing a PCI device, so that's why you are having problems with
endianess.  I suspect your patch will break the driver on PCI devices...
(assuming there are both PCI and [E]ISA versions of the device that
share the same driver).

> Additionally, i added a switch to turn off IPv4 summing. This might be 
> needed for IPv6 and is absolutely necessary on HP PARISC platform with the 
> current broken ioremap implementation. The IPv4 summing is the only place 
> in the driver that accesses memory directly without the readX or 
> memcpy_fromio macros.

How is ioremap broken? (Just curious). From what I understand ioremap is
currently a nop in the parisc-linux vm/io design.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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On Tue, Jan 15, 2002 at 07:03:09PM +0100, joel.soete@freebel.net wrote:
> I do my daily apt-get dist-upgrade which update my gpm package to release indice
> -9 and it failled to start with daemons.log following error messages:

I suggest you file a bug against the debian gpm package (see
http://www.debian.org/Bugs/).  Since you've clearly narrowed it down to
gpm, it's really up to that package's maintainer.

-- 
Revolutions do not require corporate support.



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Xref: news.gmane.org gmane.linux.ports.parisc:13754

On Tue, Jan 15, 2002 at 10:11:58AM -0800, Randolph Chung wrote:
> > Additionally, i added a switch to turn off IPv4 summing. This might be 
> > needed for IPv6 and is absolutely necessary on HP PARISC platform with the 
> > current broken ioremap implementation. The IPv4 summing is the only place 
> > in the driver that accesses memory directly without the readX or 
> > memcpy_fromio macros.
> 
> How is ioremap broken? (Just curious). From what I understand ioremap is
> currently a nop in the parisc-linux vm/io design.

it's not broken, the assumptions in ibmtr are.  after you've ioremapped
a region, you can call readb/writeb on it.  ibmtr assumes you can just
do direct memory accesses.  now, this is something we want to fix,
but it's not a bug in the PA code.

-- 
Revolutions do not require corporate support.



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Xref: news.gmane.org gmane.linux.ports.parisc:13755

Hi Randolph,

> I suspect your patch will break the driver on PCI devices...
> (assuming there are both PCI and [E]ISA versions of the device that
> share the same driver).

Nope, it's ISA and PCMCIA only. And LE stays LE on PCI devices, as well.

--jochen





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Hi Matthew,

> > How is ioremap broken? (Just curious). From what I understand ioremap is
> > currently a nop in the parisc-linux vm/io design.
> 
> it's not broken, the assumptions in ibmtr are.  after you've ioremapped
> a region, you can call readb/writeb on it.  ibmtr assumes you can just
> do direct memory accesses.  now, this is something we want to fix,
> but it's not a bug in the PA code.

Then maybe it's best to define the TR_CHECKSUM macro to 0 as default with 
an exception of architectures where the above assumption in true (i.e. 
alpha, i386 and maybe ppc, as well) to gain the extra performance boost of 
the IPv4 pre summarisation.

--jochen





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> Nope, it's ISA and PCMCIA only.

And MCA.....

Mike




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>> it's not broken, the assumptions in ibmtr are.  after you've ioremapped
>> a region, you can call readb/writeb on it.  ibmtr assumes you can just
>> do direct memory accesses.  now, this is something we want to fix,
>> but it's not a bug in the PA code.

Its in ibmtr purely for historical reasons, the driver is quite old and 
was around before the other architectures really came on stream, so we 
never had to worry about issues like this. 

>Then maybe it's best to define the TR_CHECKSUM macro to 0 as default with 

>an exception of architectures where the above assumption in true (i.e. 
>alpha, i386 and maybe ppc, as well) to gain the extra performance boost 
of 
>the IPv4 pre summarisation.

Possibly better to define it based upon the architecture in the code 
itself, either that or remove it altogether. Again because of the age of 
the driver this may be in there for a reason that is not valid anymore.

What I have to ensure is that we don't lose any functionality that we 
already have, i.e. a change for parisc stops i386/alpha/etc from working. 
Also, the pcmcia driver ibmtr_cs relies on ibmtr and, being pcmcia, can be 
used on more architectures and all changes to ibmtr have to be double 
checked against ibmtr_cs. 

Just out of interest, which t/r chipset does the token ring adapter for 
the old 712's use ? If its the tropic chipset I can test on my 712/80. 

Mike Phillips
Linux Token Ring Project
http://www.linuxtr.net



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Hi Mike,

> What I have to ensure is that we don't lose any functionality that we 
> already have, i.e. a change for parisc stops i386/alpha/etc from working. 
> Also, the pcmcia driver ibmtr_cs relies on ibmtr and, being pcmcia, can be 
> used on more architectures and all changes to ibmtr have to be double 
> checked against ibmtr_cs. 

That's what i did for the changes. I tested them on an Auto 16/4 ISA card 
in a HP 9000/720 and on an Auto 16/4 PCMCIA card in an i586 Laptop. 

I guess the pre-summarisation is there for performance reasons. In 
particular on older architectures, it's probably faster to copy and 
calculate the IPv4 checksum in the same step than to copy and checksum in 
two seperate steps. I'm not sure, if this is still true and if someone 
benchmarked the difference.

> Just out of interest, which t/r chipset does the token ring adapter for 
> the old 712's use ? If its the tropic chipset I can test on my 712/80. 

No clue. I'm just using a spare ISA card in the EISA slot...

--jochen




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Hi Mike,

> And MCA.....

I doubt that this might be an issue for big endian, unless someone 
*really* starts a Linux port for POWER2 or ports MCA to PPC for the 
early RS/6000 (model 250?) machines.

--jochen




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> > And MCA.....
> 
> I doubt that this might be an issue for big endian, unless someone 
> *really* starts a Linux port for POWER2 or ports MCA to PPC for the 
> early RS/6000 (model 250?) machines.

That may happen. If the code is endian clean they can fix up the remnants



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On 2002.01.14 20:53 Jochen Friedrich wrote:
> Hi there,
HI
> this patch fixes some endianess issues of the current ibmtr driver. 
> Although the current uses of htons() etc look correct, they are not: the 
> writew/readw API already do the byte swap on big endian machines.
>
I think the driver was correct. The i/o layer should not try to byteswap
the io requests, because it can not second-guess what the driver is doing.

And in the case of the tr driver it now does two swaps for each word it tranfers on
big endian platforms instad of zero.

The ne2000 driver had the same problem, but I removed the swaps from the parisc i/o code 
instad of touching the driver.

/Daniel
-- 



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> I think the driver was correct. The i/o layer should not try to byteswap
> the io requests, because it can not second-guess what the driver is doing.

For reference, you may wish to read
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-November/014606.html

Originally the parisc {read,write}[wl] macros did not swap, but this
breaks many PCI drivers. For example, we used to have hppa specific code in the
sym53c8xx driver that did the swapping....

> And in the case of the tr driver it now does two swaps for each word it tranfers on
> big endian platforms instad of zero.


I agree this is not optimal, altho, as Alan Cox pointed out in
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-November/014527.html
double swaps may be optimized out by the compiler.
> 
> The ne2000 driver had the same problem, but I removed the swaps from the parisc i/o code 
> instad of touching the driver.

for parisc we follow the ppc convention of defining __raw_{read,write}[wl]
that are host-endian. perhaps the drivers can use this instead?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Hi Matt,

Quoting Matthew Wilcox <willy@debian.org>:

> On Tue, Jan 15, 2002 at 07:03:09PM +0100, joel.soete@freebel.net wrote:
> > I do my daily apt-get dist-upgrade which update my gpm package to
> release indice
> > -9 and it failled to start with daemons.log following error messages:
> 
> I suggest you file a bug against the debian gpm package (see
> http://www.debian.org/Bugs/).  Since you've clearly narrowed it down to
> gpm, it's really up to that package's maintainer.

Ok i just ry it. I will see if I all well unterstood? :))

Thanks,
        Joel

> 
> -- 
> Revolutions do not require corporate support.
> 
> 


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Hi All,

On my freshly installed 712 palinux when trying to rlogin into it I got this

iws1pb05:/home/phi> rlogin iws1pb02
Connection closed.
iws1pb05:/home/phi>


Indeed I did all I thought was enough to make it workable (install of the
rlogind, resolv.conf, nsswitch.conf, inetd.conf, .rhosts with rights ok,
etc...)

I think the setup is ok, because I eventually succeed sometime to get in with
the following


iws1pb05:/home/phi> for i in 0 1 2 3 4 5 6 7 8 9
do
rlogin iws1pb02
done

Connection closed.
Connection closed.
Connection closed.
Last login: Wed Jan 16 09:51:35 2002 from iws1pb05 on pts/0
Linux iws1pb02 2.4.17-pa11 #2 Tue Jan 15 10:51:25 CET 2002 parisc unknown
iws1pb02:/home/phi>

iws1pb05 from which I try the rlogin is running HPUX11 and is a B2000.  Dunno
if it helps to know that.

Any ideas ?

Phi

--
mailto:Philippe_Benard@hp.com
WTEC HP-UX kernel debugging tools



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Quoting joel.soete@freebel.net:

> Hi Matt,
> 
> Quoting Matthew Wilcox <willy@debian.org>:
> 
> > On Tue, Jan 15, 2002 at 07:03:09PM +0100, joel.soete@freebel.net
> wrote:
> > > I do my daily apt-get dist-upgrade which update my gpm package to
> > release indice
> > > -9 and it failled to start with daemons.log following error
> messages:
> > 
> > I suggest you file a bug against the debian gpm package (see
> > http://www.debian.org/Bugs/).  Since you've clearly narrowed it down
> to
> > gpm, it's really up to that package's maintainer.

Ok, it works:
Bug#129471: Acknowledgement (gpm 1.19.6-9 Broken at leat on hppa)

Thanks again,
        Joel

> 
> Ok i just ry it. I will see if I all well unterstood? :))
> 
> Thanks,
>         Joel
> 
> > 
> > -- 
> > Revolutions do not require corporate support.
> > 
> > 
> 
> 
> -------------------------------------------------
> This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)
> 
> 


-------------------------------------------------
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Did not see this mentioned on the list or the site. Any experiences on
hppa? Does XFS work?

Thanks, Matthias



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Subject: [parisc-linux] Re: rlogin --> Connection closed.
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phi 4369 wrote:
> Hi All,
> 
> On my freshly installed 712 palinux when trying to rlogin into it I got this
> 
> iws1pb05:/home/phi> rlogin iws1pb02
> Connection closed.
> iws1pb05:/home/phi>

did you check /var/log/syslog on the remote machine iws1pb02?  Non-matching
name-ip pairs could probably cause this.  If your /etc/hosts.deny contains
the following entry, a non-match will result in a dropped connection:

ALL: PARANOID

Regards,

	Joey

-- 
Life is too short to run proprietary software.  -- Bdale Garbee



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phi 4369 writes...

> Hi All,
> 
> On my freshly installed 712 palinux when trying to rlogin into it I got this
> 
> iws1pb05:/home/phi> rlogin iws1pb02
> Connection closed.
> iws1pb05:/home/phi>
> 
> 
> Indeed I did all I thought was enough to make it workable (install of the
> rlogind, resolv.conf, nsswitch.conf, inetd.conf, .rhosts with rights ok,
> etc...)

Do you have rsh-server installed as well? Have you looked in /var/log/auth.log?

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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Matt Taggart writes...

> 
> phi 4369 writes...
> 
> > Hi All,
> > 
> > On my freshly installed 712 palinux when trying to rlogin into it I got thi
> s
> > 
> > iws1pb05:/home/phi> rlogin iws1pb02
> > Connection closed.
> > iws1pb05:/home/phi>
> > 
> > 
> > Indeed I did all I thought was enough to make it workable (install of the
> > rlogind, resolv.conf, nsswitch.conf, inetd.conf, .rhosts with rights ok,
> > etc...)
> 
> Do you have rsh-server installed as well?

Oh, you must if you're getting that login.

> Have you looked in /var/log/auth.log?

This still might be useful.

Not awake enough to be answering email,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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> >
> > Do you have rsh-server installed as well?
> 
> Oh, you must if you're getting that login.

Yes indeed 
>From Contents-hppa
...
usr/share/man/man8/in.rlogind.8.gz                          net/rsh-server
...

> 
> > Have you looked in /var/log/auth.log?
> 
> This still might be useful.

Yes plenty of things like this
Jan 16 16:08:56 iws1pb02 PAM_unix[191]: (login) session opened for user phi by
(uid=0)


> 
> Not awake enough to be answering email,
> 

I see :-) time to go to sleep for me :-)

Apparently nobody saw that I provided this funne workaround

while : 
do rlogin iws1pb02
done

iws1pb05:/home/phi> while :
do rlogin iws1pb02
done
Connection closed.
Connection closed.
Connection closed.
Connection closed.
Last login: Wed Jan 16 20:03:52 2002 from iws1pb05 on pts/0
Linux iws1pb02 2.4.17-pa11 #4 Wed Jan 16 10:48:18 CET 2002 parisc unknown
iws1pb02:/home/phi>


If something was wrong with the authentication setup, this while loop would
never succeed, sometime I got it working, here after the 4th attempt

I would like to add the rcp works fine as well as remsh from my B2000 HPUX11
to my palinux box, only the rlogin have problem sometimes...

I am netwoking iliterate, do you think timing could be a factor, do we need a
trace here?

Phi

--
mailto:Philippe_Benard@hp.com
WTEC HP-UX kernel debugging tools



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Subject: Re: [parisc-linux] IBM TR patch
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Hi Daniel,

> I think the driver was correct. The i/o layer should not try to byteswap
> the io requests, because it can not second-guess what the driver is doing.

I guess the 68000 code is the reference here as it was the first BE port, 
and they do the byteswap, as well.

--jochen




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From: Aaron Macks <aaronm@cs.brandeis.edu.ml.to>
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Subject: Re: [parisc-linux] journaling filesystem on parisc?
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>Did not see this mentioned on the list or the site. Any experiences on
>hppa? Does XFS work?
>
>Thanks, Matthias
>

You could try applying the XFS patches to the kernel for PARISC, and 
I know that they have worked on other RISC architectures(ppc and 
alpha, possibly also sparc), but I'm guessing you might need to do a 
little more work than just kernel compilation
aaron

-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [linux-tr] Re: [parisc-linux] IBM TR patch
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Jochen Friedrich wrote:
> Hi Mike,
> I guess the pre-summarisation is there for performance reasons. In 
> particular on older architectures, it's probably faster to copy and 
> calculate the IPv4 checksum in the same step than to copy and checksum in 
> two seperate steps.

I believe it's faster on all archs to do this in one loop.
Assuming one has enough registers to do both operations at the same time.
My assumption is anything that can run linux has enough registers.
(ie ld/st does not collide with xor).

grant



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Subject: [parisc-linux] Re: crash when writing to /dev/lp0
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Jonas Meyer wrote:
> I'm using a hp 712/60.I'm happy to see my keyboard working now with your 
> help.But now i ran into another problem: i want to connect a printer to it, 
> but whenever i write anything to /dev/lp0 the box crashes at once showing a 
> great lot of numbers on the screen.

THe "great lot of numbers" is the stack data and reason of the crash.
By crash, you mean that the box has to be rebooted?
or just the application dies?

This sounds like a kernel bug and follows really only need to go
to parisc-linux mailing list.

I'd like to at least see the "kernel panic" reason, GR02 and IOAQ values.
Unless you are using serial console, this has to be copied by hand.

> i'm using sid with the latest available kernel-image-2.4.16-32.

Can you pull a 2.4.17 parisc kernel from ftp.parisc-linux.org/kernels?
I'm not too excited about debugging the slightly older versions
since it's harder to retrieve the source from CVS.

> Another problem is the box tells me init men not freed when booting.

That's a known problem that can be safely ignored for now.

thanks,
grant



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	I'm developping a char driver for one of our PCI card in linux kernel
2.4.2-2smp (Multi-processor). And the IRQ that I read from my pci config
space is 0x7 but the one that the kernel sees when I do "lspci -v" is 0x27.
Is there a way the pass from 0x7 to 0x27 using some kernel macro's.

	Thanks

	Alex




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On Thu, Jan 17, 2002 at 11:02:31AM -0500, Alexandre April wrote:
> 
> 	I'm developping a char driver for one of our PCI card in linux kernel
> 2.4.2-2smp (Multi-processor). And the IRQ that I read from my pci config
> space is 0x7 but the one that the kernel sees when I do "lspci -v" is 0x27.
> Is there a way the pass from 0x7 to 0x27 using some kernel macro's.

you shouldn't read the irq directly from config space.  this is all done
for you by the pci support code.  use the ->irq member of struct pci_dev
instead.

-- 
Revolutions do not require corporate support.



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Thibaut VARENE wrote:

>>
>> For hardware.. it's a C240 and sam reports a HP visualize FX2(4) as a 
>> graphics card that is connected to a VGA monitor which works ok in 
>> HP-UX. If you can tell me how to get more detailed hardware 
>> information in HP UX, i'll be happy to provide it.
>
>
> Well, I bet this specific off board graphic card is not supported.
> Although onboard controllers are getting more and more supported, it 
> is not the case for specific HP hardware.
>
> As there's no core graphics for your box, I suggest you to try with 
> serial console.


Ah, that works, linux is up and running now :) Upgrading to 2.4.16-32 
even allows me to use a  graphics console, so thats all great. However, 
i do not see the penguin while booting and XFree doesnt seem to work, so 
i suppose the framebuffer device doesn't work (?)

I found in the mailinglist archive the thread "XFree86 on B180" that 
suggests it might work if you treat this card as an 'artist graphics 
card'. I'd be more than happy to test that if someone could give me some 
details on how to do that.

Thanks,

Arjen Hommersom





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I searched the mailing list for a discussion of the `long double' problem,
but I didn't find it.  So here we go...

gcc currently thinks that `long double' is 64-bits (the same size
as double).  This is perfectly legitimate, but...
glibc thinks that `long double' is 96-bits.
And HP-UX thinks `long double' is 128-bits.

So any package using long double is probably very broken.  This may
explain some of our bizarre mathematical-related failures.

Our options:
(1) Inform gcc that it's wrong, our long doubles are really 96-bits.
I don't see any way of easily implementing 96-bit floating point numbers
on top of the hardware.  I like this option the least.

(2) Inform glibc that it's wrong, our long doubles are really 64-bits.
This probably fixes most of the problems we're experiencing, but may
break an ABI somewhere?  More investigation required.  This is probably
the easiest of the three options to implement.

(3) Change both gcc and glibc to think that long double is actually
128-bits wide.  This is almost certainly going to break some packages,
and the kernel FP support may have to be enhanced to emulate some
of the opcodes.  The PA-8500 ERS says that it does NOT support `quad
precision' operations in hardware.  This is certainly going to be more
work to implement than option (2), and it may well be slower.  There's a
recommendation that the compiler arrange for a function call to handle
long double instead of issuing the instruction and trapping.

I guess I'm most in favour of option (2), though it means that there's
no 128-bit data type, which sucks a little bit, and HPUX source code is
more difficult to port, which maybe nobody cares about.

-- 
Revolutions do not require corporate support.



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Matthew Wilcox <willy@debian.org> writes:

> (3) Change both gcc and glibc to think that long double is actually
> 128-bits wide.

This is definitely what you should do.  glibc includes now a full set
of 128-bit math functions.  They should be used everywhere the ABI are
not demanding the braindamaged 96-bit format.  Even Alpha, PPC, etc
will change to this when time comes.

> This is almost certainly going to break some packages, and the
> kernel FP support may have to be enhanced to emulate some of the
> opcodes.

Not necessarily.  Look at soft-fp support in glibc.

-- 
---------------.                          ,-.   1325 Chesapeake Terrace
Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
Red Hat          `--' drepper at redhat.com   `------------------------



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On Fri, Jan 18, 2002 at 06:00:47AM +0100, Arjen Hommersom wrote:
> Ah, that works, linux is up and running now :) Upgrading to 2.4.16-32 
> even allows me to use a  graphics console, so thats all great. However, 
> i do not see the penguin while booting and XFree doesnt seem to work, so 
> i suppose the framebuffer device doesn't work (?)

correct, FX cards aren't supported by the framebuffer device, because I don't
have documentation for them.

> I found in the mailinglist archive the thread "XFree86 on B180" that 
> suggests it might work if you treat this card as an 'artist graphics 
> card'. I'd be more than happy to test that if someone could give me some 
> details on how to do that.

no way, I tried to treat my FX6 as something, which already works. But no
luck.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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Re:

[(stuff about how big "long double" is)]

> > (3) Change both gcc and glibc to think that long double is actually
> > 128-bits wide.
> 
> This is definitely what you should do.  glibc includes now a full set
> of 128-bit math functions.  They should be used everywhere the ABI are
> not demanding the braindamaged 96-bit format.  Even Alpha, PPC, etc
> will change to this when time comes.


That's why I use: real32, real64, real128 :)

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com



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> gcc currently thinks that `long double' is 64-bits (the same size
> as double).  This is perfectly legitimate, but...

This is only hppa64.  Clearly, this should be 128 bits.  However,
somebody needs to work out the ABI issues and provide a patch to
gcc to support 128 bit long doubles.  At the moment, hppa64 doesn't
even build on the gcc main branch.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Hi all,

Curious to test the patch of the new scheduler-0(1) on the palin, I need your help.

I apply successfully the original patch against kernel 2.4.17-pa11 and after
analysing its contents it appear that there are some i386 specific patches.
There is the two which are problems for me because there are in asm section (and
I do not undertand what the first makes):

--- linux/include/asm-i386/bitops.h.orig        Tue Aug 21 14:26:16 2001
+++ linux/include/asm-i386/bitops.h     Wed Jan 16 00:52:28 2002
@@ -75,6 +75,14 @@
                :"=m" (ADDR)
                :"Ir" (nr));
 }
+
+static __inline__ void __clear_bit(int nr, volatile void * addr)
+{
+       __asm__ __volatile__(
+               "btrl %1,%0"
+               :"=m" (ADDR)
+               :"Ir" (nr));
+}
 #define smp_mb__before_clear_bit()     barrier()
 #define smp_mb__after_clear_bit()      barrier()

This second seems to me that I can transpose as it is but want your advice:

--- linux/include/asm-i386/mmu_context.h.orig   Tue Aug 21 14:26:23 2001
+++ linux/include/asm-i386/mmu_context.h        Wed Jan 16 00:52:28 2002
@@ -7,6 +7,28 @@
 #include <asm/pgalloc.h>

 /*
+ * Every architecture must define this function. It's the fastest
+ * way of searching a 168-bit bitmap where the first 128 bits are
+ * unlikely to be set. It's guaranteed that at least one of the 168
+ * bits is cleared.
+ */
+#if MAX_RT_PRIO != 128 || MAX_PRIO != 168
+# error update this function.
+#endif
+
+static inline int sched_find_first_zero_bit(unsigned long *b)
+{
+       unsigned int rt;
+
+       rt = b[0] & b[1] & b[2] & b[3];
+       if (unlikely(rt != 0xffffffff))
+               return find_first_zero_bit(b, MAX_RT_PRIO);
+
+       if (b[4] != ~0)
+               return ffz(b[4]) + MAX_RT_PRIO;
+       return ffz(b[5]) + 32 + MAX_RT_PRIO;
+}
+/*
  * possibly do the LDT unload here?
  */
 #define destroy_context(mm)            do { } while(0)

And what do you about this one (how to implement it on hppa?):

--- linux/arch/i386/kernel/process.c.orig       Sun Jan  6 13:55:47 2002
+++ linux/arch/i386/kernel/process.c    Wed Jan 16 00:52:28 2002
@@ -123,15 +123,12 @@
 void cpu_idle (void)
 {
        /* endless idle loop with no priority at all */
-       init_idle();
-       current->nice = 20;
-       current->counter = -100;

        while (1) {
                void (*idle)(void) = pm_idle;
                if (!idle)
                        idle = default_idle;
-               while (!current->need_resched)
+               if (!current->need_resched)
                        idle();
                schedule();
                check_pgt_cache();

Thanks in advance for your help,
        Joel

PS: please make me in CC.



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Subject: Re: [parisc-linux] sched-O1-2.4.17-I3.patch, need help
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On Fri, Jan 18, 2002 at 08:19:38AM +0100, joel.soete@freebel.net wrote:
> +
> +static __inline__ void __clear_bit(int nr, volatile void * addr)
> +{
> +       __asm__ __volatile__(
> +               "btrl %1,%0"
> +               :"=m" (ADDR)
> +               :"Ir" (nr));
> +}

__clear_bit is simply a lockless clear_bit.  it's the same difference
between __set_bit and set_bit.

>  /*
> + * Every architecture must define this function. It's the fastest
> + * way of searching a 168-bit bitmap where the first 128 bits are
> + * unlikely to be set. It's guaranteed that at least one of the 168
> + * bits is cleared.
> + */
> +#if MAX_RT_PRIO != 128 || MAX_PRIO != 168
> +# error update this function.
> +#endif
> +
> +static inline int sched_find_first_zero_bit(unsigned long *b)
> +{
> +       unsigned int rt;
> +
> +       rt = b[0] & b[1] & b[2] & b[3];
> +       if (unlikely(rt != 0xffffffff))
> +               return find_first_zero_bit(b, MAX_RT_PRIO);
> +
> +       if (b[4] != ~0)
> +               return ffz(b[4]) + MAX_RT_PRIO;
> +       return ffz(b[5]) + 32 + MAX_RT_PRIO;
> +}
> +/*

hrm -- actually a little tricky.  Yes, this function for 32-bit compiles,
but not for 64-bit compiles (long changes size, and of course that means
it can be done more quickly on 64-bit quantities instead of 32-bit).

> And what do you about this one (how to implement it on hppa?):
> 
> --- linux/arch/i386/kernel/process.c.orig       Sun Jan  6 13:55:47 2002
> +++ linux/arch/i386/kernel/process.c    Wed Jan 16 00:52:28 2002
> @@ -123,15 +123,12 @@
>  void cpu_idle (void)
>  {
>         /* endless idle loop with no priority at all */
> -       init_idle();
> -       current->nice = 20;
> -       current->counter = -100;

yup, delete these.

>         while (1) {
>                 void (*idle)(void) = pm_idle;
>                 if (!idle)
>                         idle = default_idle;
> -               while (!current->need_resched)
> +               if (!current->need_resched)
>                         idle();
>                 schedule();
>                 check_pgt_cache();

Dunno.

-- 
Revolutions do not require corporate support.



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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] sched-O1-2.4.17-I3.patch, need help
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Matt,

Thanks a lot.

Anyway it is far much more difficult then I innocently believe.
Struct changes ask also changes on other parts as offset.c, traps.c,...
Also I would need much more works and help...

Hmm... about traps.c I always forgot to ask you:
at line 174 it was writen "... cr30 do not correspond..."
would it not be read  "... cr31 ..."?

Thanks again for help,
        Joel

Quoting Matthew Wilcox <willy@debian.org>:

> On Fri, Jan 18, 2002 at 08:19:38AM +0100, joel.soete@freebel.net wrote:
> > +
> > +static __inline__ void __clear_bit(int nr, volatile void * addr)
> > +{
> > +       __asm__ __volatile__(
> > +               "btrl %1,%0"
> > +               :"=m" (ADDR)
> > +               :"Ir" (nr));
> > +}
> 
> __clear_bit is simply a lockless clear_bit.  it's the same difference
> between __set_bit and set_bit.
> 
> >  /*
> > + * Every architecture must define this function. It's the fastest
> > + * way of searching a 168-bit bitmap where the first 128 bits are
> > + * unlikely to be set. It's guaranteed that at least one of the 168
> > + * bits is cleared.
> > + */
> > +#if MAX_RT_PRIO != 128 || MAX_PRIO != 168
> > +# error update this function.
> > +#endif
> > +
> > +static inline int sched_find_first_zero_bit(unsigned long *b)
> > +{
> > +       unsigned int rt;
> > +
> > +       rt = b[0] & b[1] & b[2] & b[3];
> > +       if (unlikely(rt != 0xffffffff))
> > +               return find_first_zero_bit(b, MAX_RT_PRIO);
> > +
> > +       if (b[4] != ~0)
> > +               return ffz(b[4]) + MAX_RT_PRIO;
> > +       return ffz(b[5]) + 32 + MAX_RT_PRIO;
> > +}
> > +/*
> 
> hrm -- actually a little tricky.  Yes, this function for 32-bit
> compiles,
> but not for 64-bit compiles (long changes size, and of course that
> means
> it can be done more quickly on 64-bit quantities instead of 32-bit).
> 
> > And what do you about this one (how to implement it on hppa?):
> > 
> > --- linux/arch/i386/kernel/process.c.orig       Sun Jan  6 13:55:47
> 2002
> > +++ linux/arch/i386/kernel/process.c    Wed Jan 16 00:52:28 2002
> > @@ -123,15 +123,12 @@
> >  void cpu_idle (void)
> >  {
> >         /* endless idle loop with no priority at all */
> > -       init_idle();
> > -       current->nice = 20;
> > -       current->counter = -100;
> 
> yup, delete these.
> 
> >         while (1) {
> >                 void (*idle)(void) = pm_idle;
> >                 if (!idle)
> >                         idle = default_idle;
> > -               while (!current->need_resched)
> > +               if (!current->need_resched)
> >                         idle();
> >                 schedule();
> >                 check_pgt_cache();
> 
> Dunno.
> 
> -- 
> Revolutions do not require corporate support.
> 
> 


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From: Daniel Engstrom <5116@telia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] EISA EEPROM Driver/bus enumrator
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Hi, All

I have managed to figure out most of the EISA part of the EEPROM
in my 715/old.
I have used this information to create a some code the uses the EEPROM
to 'enumrate' the EISA bus.

The enumrator will configure interrupt trig-levels and register io and memory
resources like what is done for PCI devices. I guess it also could
submit a struct parisc_device if it is desirable.

I have changed the default interrupt trig level to edge now so 
ISA boards should not need to be added to the EEPROM
configuration unless the user want to.

The attached tar file contains the following:
 
eisa_enumrator.diff              
include/asm-parisc/eisa_bus.h
include/asm-parisc/eisa_eeprom.h
drivers/gsc/eisa_enumrator.c

The diff file patyches the following files:
drivers/gsc/Makefile
drivers/gsc/eisa.c

(Sorry for the tar file. I didn't have space for another tree to diff against
right now and I do not know if I can make cvs diff work with files that are not
under cvs control, like the new files I created).

Tell me what you think,
/Daniel
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--AWniW0JNca5xppdA--



From - Thu Nov 08 21:21:21 2018
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From: Kim Saunders <kim.saunders@mercuryit.com.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Anyone want an E25?
Date: 19 Jan 2002 17:24:22 +1100
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Hi,

I have an E25 server, and my understanding is that this machine is not
supported by parisc-linux. As such, I'm interested in giving it to
anyone who is interested in helping to port parisc-linux to this
machine, or anyone else who has a constructive use for it.

I'm in Sydney, Australia, and it's probably too bulky to ship anywhere.

Thanks,

KimS






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From: Daniel Engstrom <5116@telia.com>
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Subject: Re: [parisc-linux] IBM TR patch
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On 2002.01.16 21:20 Jochen Friedrich wrote:
> Hi Daniel,
> 
> > I think the driver was correct. The i/o layer should not try to byteswap
> > the io requests, because it can not second-guess what the driver is doing.
> 
> I guess the 68000 code is the reference here as it was the first BE port, 
> and they do the byteswap, as well.

Do the 68000 port support ISA and PCI buses?

/Daniel
-- 



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From: Joel Soete <joel.soete@freebel.net>
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Hello Denis,


"FAUCHER,DENNIS (HP-USA,ex1)" wrote:
> 
> Joel,
> 
> Did you ever solve your XFree86 start-up problem that you stated in:
> 
> http://lists.parisc-linux.org/hypermail/parisc-linux/6447.html
> 

Yes, the solution was to avoid the feature of switching resolution (see
attached XF86Config files).

Please note that:

a. you have so to choose a resolution matching your default definition
(see boot console CO[nfiguration] MO[nitor] would display you the actual
monitor set up, I have no 715 to check if the command is the same but
should not be difficult to find)

b. be sure that your mouse pointer device (here /dev/psaux) is not a
pointer
to /dev/gpmdata (in fact that should not happen with psaux but well with
mouse)

> I just installed 0.9.3 on an HP 715/100 workstation and have the same
> problem.  Thank you for your help.

I have no 715 to test but it works for my 712 & b180 (also for some
other J210) also I hope it will also help you.

Good luck,
	Joel

PS1: I also attached XF86Config-4 (not mandatory but an apt-get
dist-upgrade created a bad one for me so I corrected it), if never you
also need it.

PS2: Just FYI, you could also find additional information on Debian
mailing list
http://lists.debian.org/debian-hppa/2002/debian-hppa-200201/threads.html
--------------BBAB5A7FC2F6F19F54059669
Content-Type: text/plain; charset=us-ascii;
 name="XF86Config"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="XF86Config"


# File generated by xf86config.

#
# Copyright (c) 1999 by The XFree86 Project, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
# THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
# OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
# 
# Except as contained in this notice, the name of the XFree86 Project shall
# not be used in advertising or otherwise to promote the sale, use or other
# dealings in this Software without prior written authorization from the
# XFree86 Project.
#

# **********************************************************************
# Refer to the XF86Config(4/5) man page for details about the format of 
# this file.
# **********************************************************************

# **********************************************************************
# Module section -- this  section  is used to specify
# which dynamically loadable modules to load.
# **********************************************************************
#
Section "Module"

# This loads the DBE extension module.

    Load        "dbe"  	# Double buffer extension

# This loads the miscellaneous extensions module, and disables
# initialisation of the XFree86-DGA extension within that module.
    SubSection  "extmod"
      Option    "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection

# This loads the Type1 and FreeType font modules
    Load        "type1"
    Load        "freetype"

# This loads the GLX module
#    Load       "glx"

EndSection

# **********************************************************************
# Files section.  This allows default font and rgb paths to be set
# **********************************************************************

Section "Files"

# The location of the RGB database.  Note, this is the name of the
# file minus the extension (like ".txt" or ".db").  There is normally
# no need to change the default.

    RgbPath	"/usr/X11R6/lib/X11/rgb"

# Multiple FontPath entries are allowed (which are concatenated together),
# as well as specifying multiple comma-separated entries in one FontPath
# command (or a combination of both methods)
# 
# If you don't have a floating point coprocessor and emacs, Mosaic or other
# programs take long to start up, try moving the Type1 and Speedo directory
# to the end of this list (or comment them out).
# 

#    FontPath   "/usr/X11R6/lib/X11/fonts/local/"
    FontPath   "/usr/X11R6/lib/X11/fonts/misc/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/Type1/"
    FontPath   "/usr/X11R6/lib/X11/fonts/Speedo/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/"

# The module search path.  The default path is shown here.

#    ModulePath "/usr/X11R6/lib/modules"

EndSection

# **********************************************************************
# Server flags section.
# **********************************************************************

Section "ServerFlags"

# Uncomment this to cause a core dump at the spot where a signal is 
# received.  This may leave the console in an unusable state, but may
# provide a better stack trace in the core dump to aid in debugging

#    Option "NoTrapSignals"

# Uncomment this to disable the <Crtl><Alt><BS> server abort sequence
# This allows clients to receive this key event.

#    Option "DontZap"

# Uncomment this to disable the <Crtl><Alt><KP_+>/<KP_-> mode switching
# sequences.  This allows clients to receive these key events.

#    Option "Dont Zoom"

# Uncomment this to disable tuning with the xvidtune client. With
# it the client can still run and fetch card and monitor attributes,
# but it will not be allowed to change them. If it tries it will
# receive a protocol error.

#    Option "DisableVidModeExtension"

# Uncomment this to enable the use of a non-local xvidtune client. 

#    Option "AllowNonLocalXvidtune"

# Uncomment this to disable dynamically modifying the input device
# (mouse and keyboard) settings. 

#    Option "DisableModInDev"

# Uncomment this to enable the use of a non-local client to
# change the keyboard or mouse settings (currently only xset).

#    Option "AllowNonLocalModInDev"

EndSection

# **********************************************************************
# Input devices
# **********************************************************************

# **********************************************************************
# Core keyboard's InputDevice section
# **********************************************************************

Section "InputDevice"

    Identifier	"Keyboard1"
    Driver	"Keyboard"
# For most OSs the protocol can be omitted (it defaults to "Standard").
# When using XQUEUE (only for SVR3 and SVR4, but not Solaris),
# uncomment the following line.

#    Option     "Protocol"      "Xqueue"

    Option "AutoRepeat" "500 30"

# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
#    Option	"Xleds"      "1 2 3"

#    Option "LeftAlt"     "Meta"
#    Option "RightAlt"    "ModeShift"

# To customise the XKB settings to suit your keyboard, modify the
# lines below (which are the defaults).  For example, for a non-U.S.
# keyboard, you will probably want to use:
#    Option "XkbModel"    "pc102"
# If you have a US Microsoft Natural keyboard, you can use:
#    Option "XkbModel"    "microsoft"
#
# Then to change the language, change the Layout setting.
# For example, a german layout can be obtained with:
#    Option "XkbLayout"   "de"
# or:
#    Option "XkbLayout"   "de"
#    Option "XkbVariant"  "nodeadkeys"
#
# If you'd like to switch the positions of your capslock and
# control keys, use:
#    Option "XkbOptions"  "ctrl:swapcaps"

# These are the default XKB settings for XFree86
#    Option "XkbRules"    "xfree86"
#    Option "XkbModel"    "pc101"
#    Option "XkbLayout"   "us"
#    Option "XkbVariant"  ""
#    Option "XkbOptions"  ""

#    Option "XkbDisable"

    Option "XkbRules"	"xfree86"
    Option "XkbModel"	"pc101"
    Option "XkbLayout"	"us"
#    Option "XkbVariant"	"nodeadkeys"

EndSection


# **********************************************************************
# Core Pointer's InputDevice section
# **********************************************************************

Section "InputDevice"

# Identifier and driver

    Identifier	"Mouse1"
    Driver	"mouse"
    Option "Protocol"    "PS/2"
    Option "Device"      "/dev/mouse"

# When using XQUEUE, comment out the above two lines, and uncomment
# the following line.

#    Option "Protocol"	"Xqueue"

# Baudrate and SampleRate are only for some Logitech mice. In
# almost every case these lines should be omitted.

#    Option "BaudRate"	"9600"
#    Option "SampleRate"	"150"

# Emulate3Buttons is an option for 2-button Microsoft mice
# Emulate3Timeout is the timeout in milliseconds (default is 50ms)

    Option "Emulate3Buttons"
    Option "Emulate3Timeout"    "100"

# ChordMiddle is an option for some 3-button Logitech mice

#    Option "ChordMiddle"

EndSection


# **********************************************************************
# Other input device sections 
# this is optional and is required only if you
# are using extended input devices.  This is for example only.  Refer
# to the XF86Config man page for a description of the options.
# **********************************************************************
#
# Section "InputDevice" 
#    Identifier  "Mouse2"
#    Driver      "mouse"
#    Option      "Protocol"      "MouseMan"
#    Option      "Device"        "/dev/mouse2"
# EndSection
#
# Section "InputDevice"
#    Identifier "spaceball"
#    Driver     "magellan"
#    Option     "Device"        "/dev/cua0"
# EndSection
#
# Section "InputDevice"
#    Identifier "spaceball2"
#    Driver     "spaceorb"
#    Option     "Device"        "/dev/cua0"
# EndSection
#
# Section "InputDevice"
#    Identifier "touchscreen0"
#    Driver     "microtouch"
#    Option     "Device"        "/dev/ttyS0"
#    Option     "MinX"          "1412"
#    Option     "MaxX"          "15184"
#    Option     "MinY"          "15372"
#    Option     "MaxY"          "1230"
#    Option     "ScreenNumber"  "0"
#    Option     "ReportingMode" "Scaled"
#    Option     "ButtonNumber"  "1"
#    Option     "SendCoreEvents"
# EndSection
#
# Section "InputDevice"
#    Identifier "touchscreen1"
#    Driver     "elo2300"
#    Option     "Device"        "/dev/ttyS0"
#    Option     "MinX"          "231"
#    Option     "MaxX"          "3868"
#    Option     "MinY"          "3858"
#    Option     "MaxY"          "272"
#    Option     "ScreenNumber"  "0"
#    Option     "ReportingMode" "Scaled"
#    Option     "ButtonThreshold"       "17"
#    Option     "ButtonNumber"  "1"
#    Option     "SendCoreEvents"
# EndSection

# **********************************************************************
# Monitor section
# **********************************************************************

# Any number of monitor sections may be present

Section "Monitor"

    Identifier  "lcd"

# HorizSync is in kHz unless units are specified.
# HorizSync may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY.  REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

    HorizSync   31.5 - 48.5

#    HorizSync	30-64         # multisync
#    HorizSync	31.5, 35.2    # multiple fixed sync frequencies
#    HorizSync	15-25, 30-50  # multiple ranges of sync frequencies

# VertRefresh is in Hz unless units are specified.
# VertRefresh may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY.  REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

    VertRefresh 50-100

EndSection


# **********************************************************************
# Graphics device section
# **********************************************************************

# Any number of graphics device sections may be present

# Standard VGA Device:

Section "Device"
    Identifier	"Standard VGA"
    VendorName	"Unknown"
    BoardName	"Unknown"

# The chipset line is optional in most cases.  It can be used to override
# the driver's chipset detection, and should not normally be specified.

#    Chipset	"generic"

# The Driver line must be present.  When using run-time loadable driver
# modules, this line instructs the server to load the specified driver
# module.  Even when not using loadable driver modules, this line
# indicates which driver should interpret the information in this section.

    Driver     "fbdev"
# The BusID line is used to specify which of possibly multiple devices
# this section is intended for.  When this line isn't present, a device
# section can only match up with the primary video device.  For PCI
# devices a line like the following could be used.  This line should not
# normally be included unless there is more than one video device
# intalled.

#    BusID      "PCI:0:10:0"

#    VideoRam	256

#    Clocks	25.2 28.3

EndSection

# Device configured by xf86config:

Section "Device"
    Identifier  "fbdev"
    Driver      "fbdev"
    #VideoRam    8192
    # Insert Clocks lines here if appropriate
EndSection


# **********************************************************************
# Screen sections
# **********************************************************************

# Any number of screen sections may be present.  Each describes
# the configuration of a single screen.  A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.
Section "Screen"
    Identifier  "Screen 1"
    Device      "fbdev"
    Monitor     "lcd"
    DefaultDepth 8

    Subsection "Display"
        Depth       8
        Modes       "1280x1024" #"800x600" "640x480" "1024x768" 
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes       "640x480" "800x600" "1024x768" "1280x1024"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes       "800x600" # "1024x768"
        ViewPort    0 0
    EndSubsection
EndSection

# **********************************************************************
# ServerLayout sections.
# **********************************************************************

# Any number of ServerLayout sections may be present.  Each describes
# the way multiple screens are organised.  A specific ServerLayout
# section may be specified from the X server command line with the
# "-layout" option.  In the absence of this, the first section is used.
# When now ServerLayout section is present, the first Screen section
# is used alone.

Section "ServerLayout"

# The Identifier line must be present
    Identifier  "Simple Layout"

# Each Screen line specifies a Screen section name, and optionally
# the relative position of other screens.  The four names after
# primary screen name are the screens to the top, bottom, left and right
# of the primary screen.  In this example, screen 2 is located to the
# right of screen 1.

    Screen "Screen 1"

# Each InputDevice line specifies an InputDevice section name and
# optionally some options to specify the way the device is to be
# used.  Those options include "CorePointer", "CoreKeyboard" and
# "SendCoreEvents".

    InputDevice "Mouse1" "CorePointer"
    InputDevice "Keyboard1" "CoreKeyboard"

EndSection


--------------BBAB5A7FC2F6F19F54059669
Content-Type: text/plain; charset=us-ascii;
 name="XF86Config-4"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="XF86Config-4"

### BEGIN DEBCONF SECTION
# XF86Config-4 (XFree86 server configuration file) generated by dexconf, the
# Debian X Configuration tool, using values from the debconf database.
#
# Edit this file with caution, and see the XF86Config manual page.
# (Type "man XF86Config" at the shell prompt.)
#
# If you want your changes to this file preserved by dexconf, only make changes
# before the "### BEGIN DEBCONF SECTION" line above, and/or after the
# "### END DEBCONF SECTION" line below.

Section "Files"
	RgbPath     "/usr/X11R6/lib/X11/rgb"
#	FontPath	"unix/:7100"			# local font server
	# if the local font server has problems, we can fall back on these
	FontPath	"/usr/lib/X11/fonts/misc"
	FontPath	"/usr/lib/X11/fonts/cyrillic"
	FontPath	"/usr/lib/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/Type1"
	FontPath	"/usr/lib/X11/fonts/Speedo"
	FontPath	"/usr/lib/X11/fonts/100dpi"
	FontPath	"/usr/lib/X11/fonts/75dpi"
EndSection

Section "Module"
	Load	"GLcore"
	Load	"bitmap"
	Load	"dbe"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"pex5"
	Load	"record"
	Load	"speedo"
	Load	"type1"
	Load	"vbe"
	Load	"xie"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"keyboard"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xfree86"
	Option		"XkbModel"	"pc101"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/psaux"
	Option		"Protocol"		"PS/2"
	Option		"Emulate3Buttons"	"true"
	Option		"ZAxisMapping"		"4 5"
EndSection

#Section "InputDevice"
#	Identifier	"Generic Mouse"
#	Driver		"mouse"
#	Option		"SendCoreEvents"	"true"
#	Option		"Device"		"/dev/input/mice"
#	Option		"Protocol"		"ImPS/2"
#	Option		"Emulate3Buttons"	"true"
#	Option		"ZAxisMapping"		"4 5"
#EndSection

Section "Device"
	Identifier	"Generic Video Card"
	Driver		"fbdev"
	Option		"UseFBDev"		"true"
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	HorizSync	30-70
	VertRefresh	50-160
#	Option		"DPMS"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Generic Video Card"
	Monitor		"Generic Monitor"
	DefaultDepth	8
	SubSection "Display"
		Depth		1
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1280x1024"
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
#	InputDevice	"Generic Mouse"
EndSection

Section "DRI"
	Mode	0666
EndSection

### END DEBCONF SECTION

--------------BBAB5A7FC2F6F19F54059669--




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Saludos cordiales,
   David Requena
   Computer Sciences Corporation
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   drequena@csc.com

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Mensaje original:  owner-linux-tr, 16/01/2002 09:20:12 p.m.

> Hi Daniel,
>
> > I think the driver was correct. The i/o layer should not try to
byteswap
> > the io requests, because it can not second-guess what the driver is
doing.
>
> I guess the 68000 code is the reference here as it was the first BE port,
> and they do the byteswap, as well.
>
> --jochen
>




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> >         while (1) {
> >                 void (*idle)(void) = pm_idle;
> >                 if (!idle)
> >                         idle = default_idle;
> > -               while (!current->need_resched)
> > +               if (!current->need_resched)
> >                         idle();
> >                 schedule();
> >                 check_pgt_cache();
>
> Dunno.

This is sending the idle thread back through the scheduler at least once every 
clock tick.  On the x86, idle() halts the processor until it receives an 
interrupt.

I *think* the reason is the idle tick rebalances the run queue but doesn't 
schedule the first task for execution (if there is one), so the call to 
schedule() does that.

However, there are more changes than just this (I just did the changes for a 
different arch).  You need to change p->processor to p->cpu in the SMP code.  
There may be other struct task changes that bite, but that looks like the only 
one in parisc.

You also get bitten (in I3) by the physical to logical CPU mapping problems.  
These are gone in J0, but now you have to introduce and extra migrate_process 
cross processor interrupt.

Probably the best way to work on this is to start a 2.5 parisc tree...

Good luck.

James Bottomley





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Hello,
I am trying to install parisc-linux on a HP 735. The problem is that I
can not specify the boot device. I hit ESC during the boot-process and
I get the menu where I can choose between:

---
a) Boot from specified device
s) Search fpr bootable devices
a) Enter boot administration mpde
x) Exit and continue boot sequence
?) Help

Select from menu:
---

But then nothing happens no matter what key I press. The cursor just
jumps to the "S" of "Select". Even "? <RETURN>" gives no output at
all.
I thought that it might have something to do with my serial console
but I tried using another PC with minicom and got the same result.
If I just let the machine boot to HP-UX then everything works fine, I
can execute commands and stuff.
Does someone know whats going on here or how to avoid this problem?
Regards,
Phil



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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: [parisc-linux] XGCC MacOSX/hppa64-linux build error
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Hi.

I tried to compile an xc on MacOSX 10.1.2 (powerpc-apple-darwin5.2) 
targeting hppa64-linux, following taggart instructions (thanks for you 
patience there :), but the build breaks always at the same point, when 
testing libgcc1.

All the 32bit stuff (binutils, libc, gcc) compiled perfectly fine and is 
operational, and the 64bit binutils compiled fine also (but are they 
working correctly ?)

So here is the error I got:

Testing libgcc1.  Ignore linker warning messages.
/Users/varenet/palinux-builds/xc-build/gcc/gcc/xgcc 
-B/Users/varenet/palinux-builds/xc-build/gcc/gcc/ 
-B/usr/local/palinux/hppa64-linux/bin/ 
-B/usr/local/palinux/hppa64-linux/lib/ -isystem 
/usr/local/palinux/hppa64-linux/include -DCROSS_COMPILE -DIN_GCC    -W 
-Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem 
./include  libgcc1-test.o -o libgcc1-test \
   -nostartfiles -nostdlib `/Users/varenet/palinux-builds/xc-
build/gcc/gcc/xgcc -B/Users/varenet/palinux-builds/xc-build/gcc/gcc/ 
-B/usr/local/palinux/hppa64-linux/bin/ 
-B/usr/local/palinux/hppa64-linux/lib/ -isystem 
/usr/local/palinux/hppa64-linux/include --print-libgcc-file-name`
collect2: ld terminated with signal 10 [Bus error], core dumped
/usr/local/palinux/hppa64-linux/bin/ld: warning: cannot find entry 
symbol main; defaulting to 0000000000010280
make[1]: *** [libgcc1-test] Erreur 1
make: *** [all-gcc] Erreur 2

Any idea ?

Thibaut VARENE
PA/Linux ESIEE Team
http://www.esiee.fr/puffin




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Philip,

I'm using the serial console on a 735/125 without any problems. Two possibilities:

Your cable - does it have anything special/wrong on the control signals ? Obviously the basic RX/TX and ground work, how about the other signals (DSR/DTR, RTS/CTS) ?

The console configuration and your terminal program aren't using the same parameters (I assume you are using 9600,n,8,1). Eventually the console has been set to something similar but different. The console and the OS can use different settings, which is why it works from the OS but not at the boot prompt.

	Christian 


On Sat, 19 Jan 2002 19:33:43 +0100
"Philipp Schulte" <pschulte@uni-duisburg.de> wrote:

> Hello,
> I am trying to install parisc-linux on a HP 735. The problem is that I
> can not specify the boot device. I hit ESC during the boot-process and
> I get the menu where I can choose between:
> 
> ---
> a) Boot from specified device
> s) Search fpr bootable devices
> a) Enter boot administration mpde
> x) Exit and continue boot sequence
> ?) Help
> 
> Select from menu:
> ---
> 
> But then nothing happens no matter what key I press. The cursor just
> jumps to the "S" of "Select". Even "? <RETURN>" gives no output at
> all.
> I thought that it might have something to do with my serial console
> but I tried using another PC with minicom and got the same result.
> If I just let the machine boot to HP-UX then everything works fine, I
> can execute commands and stuff.
> Does someone know whats going on here or how to avoid this problem?
> Regards,
> Phil
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] Boot console problems
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Hello !

In my oppinion, this has nothing to do with the control lines.
The behavior would be different.

The problem you have, Philipp is the line-feed, carriage return
topic, a always hot topic.
You can simple try to use Ctrl-J (^J) instead of <return>. Or try
to use ^J and then <return> or the other way round. Then the machine 
will perhaps react to your commands !

The problem is simple a setup problem. Tricky is to find a setup
of 
- exchange LF by CR or the other way round
- add LF in some cases
- ignore CR is some cases.

With `stty' on the machine running the front end (minicom) you can
play around, or use `minicom' built in configuration.

With friedly regards
Christoph P.


Christian Suder wrote:
> 
> Philip,
> 
> I'm using the serial console on a 735/125 without any problems. Two possibilities:
> 
> Your cable - does it have anything special/wrong on the control signals ? Obviously the basic RX/TX and ground work, how about the other signals (DSR/DTR, RTS/CTS) ?
> 
> The console configuration and your terminal program aren't using the same parameters (I assume you are using 9600,n,8,1). Eventually the console has been set to something similar but different. The console and the OS can use different settings, which is why it works from the OS but not at the boot prompt.
> 
>         Christian
> 
> On Sat, 19 Jan 2002 19:33:43 +0100
> "Philipp Schulte" <pschulte@uni-duisburg.de> wrote:
> 
> > Hello,
> > I am trying to install parisc-linux on a HP 735. The problem is that I
> > can not specify the boot device. I hit ESC during the boot-process and
> > I get the menu where I can choose between:
> >
> > ---
> > a) Boot from specified device
> > s) Search fpr bootable devices
> > a) Enter boot administration mpde
> > x) Exit and continue boot sequence
> > ?) Help
> >
> > Select from menu:
> > ---
> >
> > But then nothing happens no matter what key I press. The cursor just
> > jumps to the "S" of "Select". Even "? <RETURN>" gives no output at
> > all.
> > I thought that it might have something to do with my serial console
> > but I tried using another PC with minicom and got the same result.
> > If I just let the machine boot to HP-UX then everything works fine, I
> > can execute commands and stuff.
> > Does someone know whats going on here or how to avoid this problem?
> > Regards,
> > Phil
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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In reference to a message from Matthias Klose, dated Jan 16:
> Did not see this mentioned on the list or the site. Any experiences on
> hppa? Does XFS work?

well, it does work with some small tweaks.

i've put a patch out at:
ftp://ftp.parisc-linux.org/patches/xfs-1.0.2-hppa-2.4.17-pa11.diff.gz

it seems to work ok here. i've done some kernel compiles and ran
bonnie++ on it.

I'd like to get some comments on some of the magic numbers in the patch,
and then I hope to commit the parisc specific pieces of the patch since
they aren't really xfs specific. (the following three plus exporting
lclear_user)

first, syscall numbers... are these numbers ok?

--- arch/parisc/kernel/syscall.S	2001/12/11 17:14:06	1.74
+++ arch/parisc/kernel/syscall.S	2002/01/20 00:40:33
@@ -593,6 +593,9 @@ sys_call_table:
 	ENTRY_DIFF(ftruncate64)	/* 200 */
 	ENTRY_SAME(getdents64)
 	ENTRY_DIFF(fcntl64)
+	ENTRY_SAME(attrctl)
+	ENTRY_SAME(acl_get)
+	ENTRY_SAME(acl_set)                     /* 205 */
 
 .end
--- include/asm-parisc/unistd.h	2001/10/09 19:43:37	1.23
+++ include/asm-parisc/unistd.h	2002/01/20 00:40:40
@@ -695,8 +695,11 @@
 #define __NR_ftruncate64        (__NR_Linux + 200)
 #define __NR_getdents64         (__NR_Linux + 201)
 #define __NR_fcntl64            (__NR_Linux + 202)
+#define __NR_attrctl            (__NR_Linux + 203)
+#define __NR_acl_get            (__NR_Linux + 204)
+#define __NR_acl_set            (__NR_Linux + 205)
 
-#define __NR_Linux_syscalls     202
+#define __NR_Linux_syscalls     205
 
 #define HPUX_GATEWAY_ADDR       0xC0000004
 #define LINUX_GATEWAY_ADDR      0x100
 
 
and then a new fcntl flag. these are defined differently for i386 and
ia64 (the two officially supported xfs architectures)

--- include/asm-parisc/fcntl.h	2000/11/10 21:44:44	1.2
+++ include/asm-parisc/fcntl.h	2002/01/20 00:40:39
@@ -24,6 +24,7 @@
 #define O_DIRECT	00040000 /* direct disk access hint - currently ignored */
 #define O_DIRECTORY	00010000 /* must be a directory */
 #define O_NOFOLLOW	00000200 /* don't follow links */
+#define O_INVISIBLE     04000000 /* invisible I/O, for DMAPI/XDSM */
 
 #define F_DUPFD		0	/* dup */
 #define F_GETFD		1	/* get f_flags */

have fun! :-)
randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Hello,

I recently acquired a HP 712/80 system. I've installed PA-RISC Linux =
0.9.3 on it and it runs fine.
I've got one problem though. I don't know how to get to ISL after I =
installed Linux.
The reason I want to use ISL is that I want to (try) to make the machine =
use a serial console.
Before I installed Linux the machine booted into ISL automatically as =
the HD was wiped (or at least not bootable) but if I try to boot to ISL =
now with 'boot pri isl' (from BOOT_ADMIN) I only get to the =
'configuration mode' of PALO where you can enter the kernel and other =
boot stuff.

All in all, how can I get to the ISL> prompt so that I can use 'conspath =
2/0/4.0x283'?

Thanks in advance,
Bj=F6rn Bylander




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From: Peter Mottram <peter@petescaff.com>
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Subject: [parisc-linux] partitioned md to enable root on raid
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In order to use md on root devices with parisc there must be kernel
support for partitioned md (due to F0 partition). This is of course not a
requirement for i386 & the patch to enable this (which needs a new major
number) has not been accepted.

Is there any chance of adding this patch into parisc? Maybe due to the
special requirements of parisc then Linus might eventually accept the
requirement for this extra major number?

The current patch uses major 60 which is currently used by PDCONS. I am no
kernel hacker and am uncomfortable simply adding this patch with a
different major number.

Can anyone see any reason to not simply change the major to 61? Does the
patch look OK as it is for addition to parisc? (ignoring line numbers of
course)

PeteM

the patch is from:
http://cgi.cse.unsw.edu.au/~neilb/patches/linux/2.4.14/patch-J-MdpMajor

and is:

--- ./init/main.c       2001/11/06 04:43:07     1.1
+++ ./init/main.c       2001/11/06 04:43:12     1.2
@@ -188,6 +188,24 @@
        { "add",     0x1c30 },
        { "ade",     0x1c40 },
        { "fd",      0x0200 },
+#ifdef MDP_MAJOR
+       { "mda",     (MDP_MAJOR<<8) | 0},
+       { "mdb",     (MDP_MAJOR<<8) | 1},
+       { "mdc",     (MDP_MAJOR<<8) | 2},
+       { "mdd",     (MDP_MAJOR<<8) | 3},
+       { "mde",     (MDP_MAJOR<<8) | 4},
+       { "mdf",     (MDP_MAJOR<<8) | 5},
+       { "mdg",     (MDP_MAJOR<<8) | 6},
+       { "mdh",     (MDP_MAJOR<<8) | 7},
+       { "mdi",     (MDP_MAJOR<<8) | 8},
+       { "mdj",     (MDP_MAJOR<<8) | 9},
+       { "mdk",     (MDP_MAJOR<<8) | 10},
+       { "mdl",     (MDP_MAJOR<<8) | 11},
+       { "mdm",     (MDP_MAJOR<<8) | 12},
+       { "mdn",     (MDP_MAJOR<<8) | 13},
+       { "mdo",     (MDP_MAJOR<<8) | 14},
+       { "mdp",     (MDP_MAJOR<<8) | 15},
+#endif
        { "md",      0x0900 },
        { "xda",     0x0d00 },
        { "xdb",     0x0d40 },
--- ./include/linux/major.h     2001/11/06 04:43:07     1.1
+++ ./include/linux/major.h     2001/11/06 04:43:13     1.2
@@ -87,6 +87,8 @@

 #define LVM_BLK_MAJOR  58      /* Logical Volume Manager */

+#define MDP_MAJOR      60      /* MD with partitions */
+
 #define SCSI_DISK1_MAJOR       65
 #define SCSI_DISK2_MAJOR       66
 #define SCSI_DISK3_MAJOR       67




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Hi all,

        I  just updated the 0.9 version of the PARISC-Linux Boot HOWTO. 
If you have any comments, please mail me.
If not, I'll submit it to the Linux Documentation Staff.

Thomas.
ESIEE Team




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Hello,   
I am trying to install parisc-linux 0.9.3 on a HP 735/99. I booted
from CD and the installer told me that now disks were detected.
In the boot console I see the CD-ROM mentioned as something like "P0
scsi" and the disk as "P1  fwscsi". The disks works fine, HP-UX is
installed and boots.
It looks like Linux doesn't support the fwscsi-controller even though
it should.
Does anyone know this problem and how to solve it?
Thanks a lot,
Phil

BTW: The problem with the boot console not responding was solved by
experimenting with the serial port parameters. Thanks for the help.



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Subject: Re: [parisc-linux] Booting to ISL with Linux installed
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The problem you have, is that you may have activated the `autoboot'
mode.
Try to interrupt the autoboot mode by pressing <ESC>. Then you can
disable
autoboot.

But this is not your major problem. The "ISL" prompt after booting a
LIF-IMAGE was a tool inside the LIF-IMAGE. The boot load PALO works
in a different way. PALO together with a recovery kernel is also in
a LIF-IMAGE but there are no tools, as you know from HP-UX to boot
a HP-UX kernel with the command "hpux" or "boot" and there are also
not tools like "IODC" or whatever they were called (I am no HP 
specialist, but I want to learn more and more ...).

So you need to have a LIF-IMAGE stored on a different place or
loaded from net including those HP-UX basic tools. Such a LIF
image canbe found on the HP-UX itself, called "uxbootlf" (AFAIK).

By the way: I am also interetsed in setting my 712/60 to serial 
console. But I heard, it is a problem to setup wrong values here,
as no device may fanctioning then. What have I to do, to restore
the machine to let's say "factory setups" ?

With friendly regards
Christoph


Bjrn Bylander wrote:
>
> Hello,
> 
> I recently acquired a HP 712/80 system. I've installed PA-RISC Linux 0.9.3 on it and it runs fine.
> I've got one problem though. I don't know how to get to ISL after I installed Linux.
> The reason I want to use ISL is that I want to (try) to make the machine use a serial console.
> Before I installed Linux the machine booted into ISL automatically as the HD was wiped (or at least not bootable) but if I try to boot to ISL now with 'boot pri isl' (from BOOT_ADMIN) I only get to the 'configuration mode' of PALO where you can enter the kernel and other boot stuff.
> 
> All in all, how can I get to the ISL> prompt so that I can use 'conspath 2/0/4.0x283'?
> 
> Thanks in advance,
> Bjrn Bylander
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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> i've put a patch out at:
> ftp://ftp.parisc-linux.org/patches/xfs-1.0.2-hppa-2.4.17-pa11.diff.gz

There's another one now at 
ftp://ftp.parisc-linux.org/patches/xfs-1.0.2-hppa-2.4.17-pa11-small.diff

This one contains only the hppa changes and is meant to be applied over
parisc linux cvs + the following patches from SGI:

from ftp://oss.sgi.com/projects/xfs/download/patches/2.4.17: 

   xfs-2.4.17-split-only.bz2
   xfs-2.4.17-split-kernel.bz2
   xfs-2.4.17-split-misc.bz2
   xfs-2.4.17-split-acl-extattr.bz2
(apply in that order)

there's one new change relative to the old one in page_buf_locking.c
that seems to be a bug upstream. i've reported this to them already.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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On Sun, Jan 20, 2002 at 04:56:39PM +0100, Philipp Schulte wrote:
> I am trying to install parisc-linux 0.9.3 on a HP 735/99. I booted
> from CD and the installer told me that now disks were detected.
> In the boot console I see the CD-ROM mentioned as something like "P0
> scsi" and the disk as "P1  fwscsi". The disks works fine, HP-UX is
> installed and boots.
> It looks like Linux doesn't support the fwscsi-controller even though
> it should.

I don't know why you say `Linux should support the fwscsi-controller'.
It doesn't, and this is stated clearly on the 0.9.3 supported systems
page (http://www.parisc-linux.org/release-0.9/systems-093.html):

The not-yet-supported hardware
These systems currently have problems or lack hardware specific support to make them fully functional

    * Superdome, V and T class
    * K class
    * L3000,N class
    * E, F, G, H, I class
    * 735/FWdiff

-- 
Revolutions do not require corporate support.



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Ok, is there no way to do the equivalent of "conspath" under Linux, =
through /dev/nvram perhaps?
If not, is there any way I can get the "uxbootlf" image without buying a =
license for the appropriate HPUX version?

Best regards,
Bj=F6rn
> -----Original Message-----
> From: parisc-linux-admin@lists.parisc-linux.org
> [mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of =
Christoph
> Plattner
> Sent: Sunday, January 20, 2002 5:17 PM
> To: Bj=F6rn Bylander
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Booting to ISL with Linux installed
>=20
>=20
> The problem you have, is that you may have activated the `autoboot'
> mode.
> Try to interrupt the autoboot mode by pressing <ESC>. Then you can
> disable
> autoboot.
>=20
> But this is not your major problem. The "ISL" prompt after booting a
> LIF-IMAGE was a tool inside the LIF-IMAGE. The boot load PALO works
> in a different way. PALO together with a recovery kernel is also in
> a LIF-IMAGE but there are no tools, as you know from HP-UX to boot
> a HP-UX kernel with the command "hpux" or "boot" and there are also
> not tools like "IODC" or whatever they were called (I am no HP=20
> specialist, but I want to learn more and more ...).
>=20
> So you need to have a LIF-IMAGE stored on a different place or
> loaded from net including those HP-UX basic tools. Such a LIF
> image canbe found on the HP-UX itself, called "uxbootlf" (AFAIK).
>=20
> By the way: I am also interetsed in setting my 712/60 to serial=20
> console. But I heard, it is a problem to setup wrong values here,
> as no device may fanctioning then. What have I to do, to restore
> the machine to let's say "factory setups" ?
>=20
> With friendly regards
> Christoph
>=20
>=20

<original text removed>

>=20
> --=20
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at




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I just finished a test install of CD 0.9.3 on a B132L workstation. 
Comparing this with a couple of 715/75, 715/80 installs I made before, I 
noticed a difference in the sources.list files.

My last installation contains:

deb ftp://ftp.us.debian.org/debian/ testing main non-free contrib
deb-src ftp://ftp.us.debian.org/debian/ testing main non-free contrib
deb http://non-us.debian.org/debian-non-US testing/non-US main contrib 
non-free
deb-src http://non-us.debian.org/debian-non-US testing/non-US main 
contrib non-free

Whereas the old installs have:

deb ftp://ftp.us.debian.org/debian/ unstable main non-free contrib
deb-src ftp://ftp.us.debian.org/debian/ unstable main non-free contrib
deb http://non-us.debian.org/debian-non-US unstable/non-US main contrib 
non-free
deb-src http://non-us.debian.org/debian-non-US unstable/non-US main 
contrib non-free

What would be the most appropriate setting at this point (in order to 
get the most usability in the system)? If "testing" is preferable, how 
can one revert the packages from "stable" to "testing" version using 
apt-get commands?

Thanks.

-- 
      Rafael




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=?iso-8859-1?Q?Bj=F6rn_Bylander?= writes...

> If not, is there any way I can get the "uxbootlf" image without buying a =
> license for the appropriate HPUX version?

There is a uxbootlf in cvs for this purpose. It's in the build-tools
directory, or you can grab it via viewcvs at,

http://cvs.parisc-linux.org/~checkout~/build-tools/uxbootlf

BTW- I recently converted a couple 712s with serial console *back* to
graphics console since the sti-fb stuff is working so well now.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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> BTW- I recently converted a couple 712s with serial console *back* to
> graphics console since the sti-fb stuff is working so well now.

This reminds me of the reason why I had to move to serial console, not
because of lack of
support but because the monitor I had at the time (brand new 19" sony)
didn't work with my
712. Or it does.. but the screen flickers sometimes with just a couple of
seconds appart, sometimes it can take a couple of minutes, but it just won't
stop. It does it with another cheap 15", but I now got a another monitor, a
17" Panasonic and the sti console work fine it, no blinking.
Does anyone know what could be the cause for the 19" sony not to function
correctly. It works fine with a PC, Mac and even an old Sun3.

--
Kaj-Michael Lang, milang@tal.org





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Hello James,

Thanks a lot for inforamtion.

Quoting James Bottomley <James.Bottomley@HansenPartnership.com>:

> > >         while (1) {
> > >                 void (*idle)(void) = pm_idle;
> > >                 if (!idle)
> > >                         idle = default_idle;
> > > -               while (!current->need_resched)
> > > +               if (!current->need_resched)
> > >                         idle();
> > >                 schedule();
> > >                 check_pgt_cache();
> >
> > Dunno.
> 
> This is sending the idle thread back through the scheduler at least once
> every 
> clock tick.  On the x86, idle() halts the processor until it receives an
> 
> interrupt.
> 
> I *think* the reason is the idle tick rebalances the run queue but
> doesn't 
> schedule the first task for execution (if there is one), so the call to
> 
> schedule() does that.
> 
> However, there are more changes than just this (I just did the changes
> for a 
> different arch).  You need to change p->processor to p->cpu in the SMP
> code.  
> There may be other struct task changes that bite, but that looks like
> the only 
> one in parisc.

I think that also p->nice would be changed in p->__nice?

> 
> You also get bitten (in I3) by the physical to logical CPU mapping
> problems.  
> These are gone in J0, but now you have to introduce and extra
> migrate_process 
> cross processor interrupt.

I also have a look in J2 and notice that task_struct was deepely changed and so
I  ignore what will I have to do with offset.c.

> 
> Probably the best way to work on this is to start a 2.5 parisc tree...
> 

I do also believe that the limits of my knowledge will yet oblige me to wait
this release.

Thanks anyway for help and precious advises,

Joel

> Good luck.
> 
> James Bottomley
> 
> 
> 
> 


-------------------------------------------------
This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)



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On Tue, Jan 08, 2002 at 02:44:36PM +0100, Thomas Bogendoerfer wrote:
> I have a dead tree version of the datasheet here and compared
> it to the PSB2161. The internal registers are different. The PSB2160
> has less features, so some of the config bits of the PSB2161 aren't
> available and common bits are sometimes shifted around.
[...]
> (I'll write the register bits down and put it online during the next days).

Today I got a scanned version from Infineon Product Support, so I think
this is no longer necessary. I hope I will get it running during this
week.

Enrik
-- 
Enrik Berkhan                                         plan b. GmbH
                                                      Rppurrer Strae 4
+49-721-388582 (voice)                                76137 Karlsruhe
+49-721-388581 (fax)                                  Germany



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milang@tal.org (Kaj-Michael Lang) writes:

> Does anyone know what could be the cause for the 19" sony not to function
> correctly. It works fine with a PC, Mac and even an old Sun3.

Refresh rate set too high?  Try different monitor settings in the firmware.
I usually start with a resolution I think the monitor can take and 60hz and
work up from there if it's not satisfying.

Bdale



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This is a multi-part message in MIME format.
--------------59C76BC7D2A691F073AE94D9
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	Hi
As I said few days ago, I've a dump driver ready.
Now I'm working on a savecrash command. It works fine
for the dump, but I need to save with the dump some
informations like the running kernel at dump time.
So in the dump I've got this informations:
utsname_release and utsname_version. Now, how can
I found the right kernel in /boot ? In other
word, how can I retrieve utsname informations in a
binary file (without system.map and gdb) ?

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Bruno Vidal wrote:
> As I said few days ago, I've a dump driver ready.
> Now I'm working on a savecrash command. It works fine
> for the dump, but I need to save with the dump some
> informations like the running kernel at dump time.

Bruno - this is great!


> So in the dump I've got this informations:
> utsname_release and utsname_version. Now, how can
> I found the right kernel in /boot ? In other
> word, how can I retrieve utsname informations in a
> binary file (without system.map and gdb) ?

A couple of ideas/hacks:
o assume it's /boot/System.map + /boot/vmlinux. Tell people if they
  want to use dump/savecrash, that's what they have to do.

o assume it's in /boot. Use fgrep to find the matching strings.
  Something like
	#!/bin/sh
	cd /boot
	for i in *
	do
		fgrep $1 $i > /dev/null 2>&1
		if [ $? -eq 0 ]
		then
			echo $i
			exit 0
		fi
	done
	exit 1

The case that /boot might not be mounted could cause problems.

Since klogd seems to want System.map, perhaps savecrash could use
the same heuristics to find the "right" System.map.
See Documentation/oops-tracing.txt for more details.

hth,
grant



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Peter Mottram wrote:
> In order to use md on root devices with parisc there must be kernel
> support for partitioned md (due to F0 partition).

Are you implying that CONFIG_MD can only use full disks?
linux/Documentation/Configure.help suggests CONFIG_MD only knows
about the partitions you configure it for.

I've never used CONFIG_MD (it's enabled) and don't understand
what F0 partition has to do with CONFIG_MD.

grant



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Hello,

again the old question:

How is the switch to and from the console done exactly,
after I have booted the uxbootlf ?

How can I do a factory default setup, if there is going something wrong
?

With friendly regards
Christoph 


Matt Taggart wrote:
> 
> =?iso-8859-1?Q?Bj=F6rn_Bylander?= writes...
> 
> > If not, is there any way I can get the "uxbootlf" image without buying a =
> > license for the appropriate HPUX version?
> 
> There is a uxbootlf in cvs for this purpose. It's in the build-tools
> directory, or you can grab it via viewcvs at,
> 
> http://cvs.parisc-linux.org/~checkout~/build-tools/uxbootlf
> 
> BTW- I recently converted a couple 712s with serial console *back* to
> graphics console since the sti-fb stuff is working so well now.
> 
> --
> Matt Taggart        Linux Development Lab
> taggart@fc.hp.com   HP Linux Systems Operation
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
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Perhpas the frequency is TOO LOW !!
There are some monitors, which will not support very slow modes
any more. Or check the SYNC routing via GREEN, C-SYNC or H/V-Sync.

Bye
Christoph P.


Bdale Garbee wrote:
> 
> milang@tal.org (Kaj-Michael Lang) writes:
> 
> > Does anyone know what could be the cause for the 19" sony not to function
> > correctly. It works fine with a PC, Mac and even an old Sun3.
> 
> Refresh rate set too high?  Try different monitor settings in the firmware.
> I usually start with a resolution I think the monitor can take and 60hz and
> work up from there if it's not satisfying.
> 
> Bdale
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

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Subject: [parisc-linux] Trouble installing 0.9.3 on 735/99
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Hi all:

I've successfully installed 0.9.2 on this machine in the past, but I'm
having trouble installing 0.9.3 on my 735/99.

Here's the steps I went through; note that I don't have a SCSI CDROM to boot
from, so I had to do a bit of a kludge. Sometimes it worked, sometimes other
things happened. Anyway, here's the procedure (note I'm typing this from
memory, so the prompts aren't exact, but the procedure is the same as I used
- I did it about 10 or 15 times, so I'm well versed in it!):

I have 2 external scsi disks, one of which I'll call /dev/sda and the other
I'll call /dev/sdb; these names will not change when I transfer the disks to
the parisc box.

* Put the CD in my i686 Linux box;
* dd if=/dev/cdrom of=parisc-linux.iso;
* dd if=parisc-linux.iso of=/dev/sdb;
* reboot, and removethe external disks, plugging them into the 735/99.
* start minicom.
* Boot 735/99, choose 'b p0' at the prompt.
* Debian installer starts, good.
* Partition 1.3GB disk /dev/sda, as follows:
* 32MB /dev/sda1 -> type f0;
* 960MB /dev/sda2 -> type 83 (ext2fs);
* the rest /dev/sda3 -> type 82 (swap);
* make swap, make e2fs, mount /dev/sda2 as /;
* drop to shell, do "mkdir /inst ; mount /dev/sdb /inst -t iso9660"

Note that this last step only sometimes works. That is, only sometimes does
the install program see the mounted directory.

Anyway, it then proceeds to the "make boot floppy" section, where it asks to
list the files. Often (maybe 5 or 6 times out of 7) it will say "Files not
found in path", where I'll have to drop to the shell, umount the iso image,
then remount it. If it does find the files (and it lists the exact path), I
select the 32-bit one, and then it just hangs. I can leave it there for many
minutes, and it does nothing. 

Any ideas? Maybe I should leave it for a half hour or so... 

Cheers,
Matthew van de Werken
Electronics Engineer
CSIRO Exploration & Mining - Gravity Group
1 Technology Court - Pullenvale - Qld - 4069
ph:  (07) 3327 4685     fax:  (07) 3327 4455
email:  matt.vandewerken@csiro.au



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On Mon, 21 Jan 2002, Grant Grundler wrote:
> Peter Mottram wrote:
> > In order to use md on root devices with parisc there must be kernel
> > support for partitioned md (due to F0 partition).
>
> Are you implying that CONFIG_MD can only use full disks?
> linux/Documentation/Configure.help suggests CONFIG_MD only knows
> about the partitions you configure it for.

You can construct MD devices out of whole disks or partitions but you
cannot partition an MD device without Neil Brown's patches. What I would
like to achieve is to construct an MD device for use as a boot disk and
then partition it including the F0 partition in order that the LIF is also
mirrored. This cannot be done with a stock kernel.

OK - maybe the answer is to construct non-mirrored F0 partitions on both
boot disks and then use the rest of the disk for MD & boot from LVM
partitions. Here's the next question - does palo understand how to
boot from LVM?

PeteM




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I think the palo command line is listed in dmesg. That will tell exactly
which kernel was booted.

On Mon, 2002-01-21 at 12:45, Bruno Vidal wrote:
> 	Hi
> As I said few days ago, I've a dump driver ready.
> Now I'm working on a savecrash command. It works fine
> for the dump, but I need to save with the dump some
> informations like the running kernel at dump time.
> So in the dump I've got this informations:
> utsname_release and utsname_version. Now, how can
> I found the right kernel in /boot ? In other
> word, how can I retrieve utsname informations in a
> binary file (without system.map and gdb) ?
>=20
> 	Thanks.
>=20
> --=20
> 	Vidal Bruno, (770-4271)
>         SSD-HA Team, HP-UX & LINUX Support
> 	bruno_vidal@admin.france.hp.com
--=20
James P. Kinney III   \Changing the mobile computing world/
President and COO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint =3D 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7=20



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Subject: Re: [parisc-linux] Appropriate entries for apt sources.list
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Good question... I personally changed it from "testing" to "unstable" as I 
had some trouble with X after upgrading the kernel. The new X server that 
fixed it was only available in unstable (at least back then). However there 
are examples where using "unstable" can break things (e.g. the recent gpm 
trouble). Previous ISOs used "unstable" by default, IIRC.

I think a fair answer is, if the system as it running now stable and you 
are not missing anything, stick with the "testing". If you want to run the 
latest and greatest kernel, or whatever application, you might want to go 
to "unstable".

I just edit the source.list and run update,

         Christian


At 09:28 PM 1/20/2002 -0500, Rafael Herrera wrote:
>I just finished a test install of CD 0.9.3 on a B132L workstation. 
>Comparing this with a couple of 715/75, 715/80 installs I made before, I 
>noticed a difference in the sources.list files.
>
>My last installation contains:
>
>deb ftp://ftp.us.debian.org/debian/ testing main non-free contrib
>deb-src ftp://ftp.us.debian.org/debian/ testing main non-free contrib
>deb http://non-us.debian.org/debian-non-US testing/non-US main contrib 
>non-free
>deb-src http://non-us.debian.org/debian-non-US testing/non-US main contrib 
>non-free
>
>Whereas the old installs have:
>
>deb ftp://ftp.us.debian.org/debian/ unstable main non-free contrib
>deb-src ftp://ftp.us.debian.org/debian/ unstable main non-free contrib
>deb http://non-us.debian.org/debian-non-US unstable/non-US main contrib 
>non-free
>deb-src http://non-us.debian.org/debian-non-US unstable/non-US main 
>contrib non-free
>
>What would be the most appropriate setting at this point (in order to get 
>the most usability in the system)? If "testing" is preferable, how can one 
>revert the packages from "stable" to "testing" version using apt-get commands?
>
>Thanks.
>
>--
>      Rafael
>
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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From: Christian Suder <csuder@cisco.com>
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Subject: Re: [parisc-linux] Trouble installing 0.9.3 on 735/99
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Hmm,

are you able to do a network install, e.g. from NFS ? A while ago when I 
had frequent FS corruptions I had a setup that had vmlinux and the install 
root ramdisk "ready to go" in the f0 partition. Just had to give it the 
correct parameters at the PALO prompt, choose NFS as source and off I was 
leveling the linux partition... ;-)

Basically you should be able to do the same, boot into the installer from 
the second disk and do a regular network install. You would not need to do 
some funky stuff in the shell.

         Christian



At 07:58 AM 1/22/2002 +1000, Matt.VanDeWerken@csiro.au wrote:
>Hi all:
>
>I've successfully installed 0.9.2 on this machine in the past, but I'm
>having trouble installing 0.9.3 on my 735/99.
>
>Here's the steps I went through; note that I don't have a SCSI CDROM to boot
>from, so I had to do a bit of a kludge. Sometimes it worked, sometimes other
>things happened. Anyway, here's the procedure (note I'm typing this from
>memory, so the prompts aren't exact, but the procedure is the same as I used
>- I did it about 10 or 15 times, so I'm well versed in it!):
>
>I have 2 external scsi disks, one of which I'll call /dev/sda and the other
>I'll call /dev/sdb; these names will not change when I transfer the disks to
>the parisc box.
>
>* Put the CD in my i686 Linux box;
>* dd if=/dev/cdrom of=parisc-linux.iso;
>* dd if=parisc-linux.iso of=/dev/sdb;
>* reboot, and removethe external disks, plugging them into the 735/99.
>* start minicom.
>* Boot 735/99, choose 'b p0' at the prompt.
>* Debian installer starts, good.
>* Partition 1.3GB disk /dev/sda, as follows:
>* 32MB /dev/sda1 -> type f0;
>* 960MB /dev/sda2 -> type 83 (ext2fs);
>* the rest /dev/sda3 -> type 82 (swap);
>* make swap, make e2fs, mount /dev/sda2 as /;
>* drop to shell, do "mkdir /inst ; mount /dev/sdb /inst -t iso9660"
>
>Note that this last step only sometimes works. That is, only sometimes does
>the install program see the mounted directory.
>
>Anyway, it then proceeds to the "make boot floppy" section, where it asks to
>list the files. Often (maybe 5 or 6 times out of 7) it will say "Files not
>found in path", where I'll have to drop to the shell, umount the iso image,
>then remount it. If it does find the files (and it lists the exact path), I
>select the 32-bit one, and then it just hangs. I can leave it there for many
>minutes, and it does nothing.
>
>Any ideas? Maybe I should leave it for a half hour or so...
>
>Cheers,
>Matthew van de Werken
>Electronics Engineer
>CSIRO Exploration & Mining - Gravity Group
>1 Technology Court - Pullenvale - Qld - 4069
>ph:  (07) 3327 4685     fax:  (07) 3327 4455
>email:  matt.vandewerken@csiro.au
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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Christoph Plattner wrote:
> How is the switch to and from the console done exactly,
> after I have booted the uxbootlf ?

http://lists.parisc-linux.org/hypermail/parisc-linux/0420.html

Matt Taggart also once posted a more complete recipe.
If htdig didn't suck so badly I'd look for it...

> How can I do a factory default setup, if there is going something wrong
> ?

You can't. Only the factory can really do it.
It requires a special card ("Dagger") with LASI and onboard firmware.
Don't muck with this unless you really need to.

grant



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Subject: Re: [parisc-linux] partitioned md to enable root on raid
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Peter Mottram wrote:
> You can construct MD devices out of whole disks or partitions but you
> cannot partition an MD device without Neil Brown's patches.

Ok. I don't think we really need or want this right now.

I would prefer patches that makes it harder for linus to accept our bits
get introduced right now. parisc-linux maintainers "own" arch/parisc
but have to fight for changes in other parts of the kernel like anyone
else. Even though, this patch sounds like a good thing.

> What I would
> like to achieve is to construct an MD device for use as a boot disk and
> then partition it including the F0 partition in order that the LIF is also
> mirrored. This cannot be done with a stock kernel.

You don't really need to mirror F0. The content is static for all
intents and purposes. One could mirror /  (and /boot if that's seperate)
across two partitions on seperate physcial disks and get basically the
same result.

> OK - maybe the answer is to construct non-mirrored F0 partitions on both
> boot disks and then use the rest of the disk for MD & boot from LVM
> partitions.

Exactly.

> Here's the next question - does palo understand how to
> boot from LVM?

No. HPUX LVM is derived from the same original sources as linux's LVM
but is not compatible. HP cannot release the disk layout since it's not
HP's to give away. MKP tried to reverse engineer it early in the port
and gave up after a while. While it would make migration from HPUX to
parisc-linux easier, I don't see it as essential.

grant



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On Mon, Jan 21, 2002 at 07:20:33PM -0700, Grant Grundler wrote:
> No. HPUX LVM is derived from the same original sources as linux's LVM
> but is not compatible.

This is not true.  Linux's LVM is an independent implementation.

-- 
Revolutions do not require corporate support.



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Grant Grundler wrote:
> I would prefer patches that makes it harder for linus to accept our bits
> get introduced right now.

er, *not* get introduced...

sorry,
grant



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Matthew Wilcox wrote:
> This is not true.  Linux's LVM is an independent implementation.

Sorry - my bad. I meant the disk layout. At least that's how I remember
Martin Petersen explained the issues 2 years ago.

thanks,
grant



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>>>>> "Grant" == Grant Grundler <grundler@dsl2.external.hp.com> writes:

>> Here's the next question - does palo understand how to boot from
>> LVM?

Grant> No. HPUX LVM is derived from the same original sources as
Grant> linux's LVM but is not compatible. 

Linux LVM is closely modeled after the HP/UX LVM from a sysadmin
perspective.  But there's no code sharing involved.

What I really said was that IBM wrote the original LVM and donated the
code to OSF.  HP then picked it up and ported it to HP/UX.  So AIX,
OSF/1 and HP/UX volume managers share a common ancestor.  These days
they have diverted greatly, though.


Grant> HP cannot release the disk layout since it's not HP's to give
Grant> away. MKP tried to reverse engineer it early in the port and
Grant> gave up after a while. 

I didn't spend a lot of time on it (a couple of hours of poking).  I
also tried getting specs for the LVM metadata out of HP with no avail.

A read-only implementation for palo should be fairly trivial to write
but hardly worth the effort.


I do agree with the concensus that MD partitioning is not worth it.

Mirror the palo partition as md0, swap as md1 and / as md2.  Or
whatever.  That's the way to do it.

As long as you don't need autodetection (and you don't since PDC/IODC
don't understand MD devices anyway), you'll be fine leaving the
palo partition type as F0.

-- 
Martin K. Petersen      Cereal Bowl Engineer, Linuxcare, Inc.
http://mkp.net/         SGI XFS, Linux/PA-RISC, GNOME



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	Sorry, but on my system, fgrep gives nothing
(and by using strings, I found nothing also). And I
can't use dmesg buffer, because by definition it is a buffer,
so after running sometime, the palo boot strings is not
in the buffer anymore. Some new ideas ?

	Thanks.

Grant Grundler wrote:
> 
> Bruno Vidal wrote:
> > As I said few days ago, I've a dump driver ready.
> > Now I'm working on a savecrash command. It works fine
> > for the dump, but I need to save with the dump some
> > informations like the running kernel at dump time.
> 
> Bruno - this is great!
> 
> > So in the dump I've got this informations:
> > utsname_release and utsname_version. Now, how can
> > I found the right kernel in /boot ? In other
> > word, how can I retrieve utsname informations in a
> > binary file (without system.map and gdb) ?
> 
> A couple of ideas/hacks:
> o assume it's /boot/System.map + /boot/vmlinux. Tell people if they
>   want to use dump/savecrash, that's what they have to do.
> 
> o assume it's in /boot. Use fgrep to find the matching strings.
>   Something like
>         #!/bin/sh
>         cd /boot
>         for i in *
>         do
>                 fgrep $1 $i > /dev/null 2>&1
>                 if [ $? -eq 0 ]
>                 then
>                         echo $i
>                         exit 0
>                 fi
>         done
>         exit 1
> 
> The case that /boot might not be mounted could cause problems.
> 
> Since klogd seems to want System.map, perhaps savecrash could use
> the same heuristics to find the "right" System.map.
> See Documentation/oops-tracing.txt for more details.
> 
> hth,
> grant

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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On Tue, Jan 22, 2002 at 10:20:59AM +0100, Bruno Vidal wrote:
> 	Sorry, but on my system, fgrep gives nothing
> (and by using strings, I found nothing also). And I
> can't use dmesg buffer, because by definition it is a buffer,
> so after running sometime, the palo boot strings is not
> in the buffer anymore. Some new ideas ?

I think the correct way would be to use libbfd to achieve something
similar to the following in "shell notation":

| objdump -t vmlinux| grep " system_utsname"
102860c0 g     O .data  00000186 system_utsname
^ start                 ^ size
| objdump --start-address=0x102860c0 --stop-address=0x10286246 vmlinux
...
102860c0 4c696e75 78000000 00000000 00000000  Linux...........
102860d0 00000000 00000000 00000000 00000000  ................
102860e0 00000000 00000000 00000000 00000000  ................
102860f0 00000000 00000000 00000000 00000000  ................
10286100 00286e6f 6e652900 00000000 00000000  .(none).........
10286110 00000000 00000000 00000000 00000000  ................
10286120 00000000 00000000 00000000 00000000  ................
10286130 00000000 00000000 00000000 00000000  ................
10286140 0000322e 342e3137 2d706131 31000000  ..2.4.17-pa11...
10286150 00000000 00000000 00000000 00000000  ................
10286160 00000000 00000000 00000000 00000000  ................
10286170 00000000 00000000 00000000 00000000  ................
10286180 00000023 3134204d 6f6e204a 616e2032  ...#14 Mon Jan 2
10286190 31203230 3a34323a 33352043 45542032  1 20:42:35 CET 2
102861a0 30303200 00000000 00000000 00000000  002.............
...

Using libbfd it should be feasible to read a "struct new_utsname"
from the binaries. Sorry, but don't have the time for a better
proof-of-concept than using objdump today.

Enrik
-- 
Enrik Berkhan                                         plan b. GmbH
                                                      Rppurrer Strae 4
+49-721-388582 (voice)                                76137 Karlsruhe
+49-721-388581 (fax)                                  Germany



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On Tue, 2002-01-22 at 04:20, Bruno Vidal wrote:
> 	Sorry, but on my system, fgrep gives nothing
> (and by using strings, I found nothing also). And I
> can't use dmesg buffer, because by definition it is a buffer,
> so after running sometime, the palo boot strings is not
> in the buffer anymore. Some new ideas ?
>=20

I'm not at my PaLinux box, but my intel linux has a dmesg file in
/var/log. I seem to recall that HPUX uses a buffer for dmesg. I'll check
the PaLinux shortly.

--=20
James P. Kinney III   \Changing the mobile computing world/
President and COO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint =3D 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7=20



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	Hi
I think that Enrik has a good starting point, where can I find
a good how-to about libbfd ? there is nothing under /usr/share/doc ?
A web page ?

	Thanks.

ps: I don't like any solution based on the dmesg, because by
definition it is volatile (even files under /var/log). For
example a server running since a long time, has always
nfs file handle, or file system full, etc.... so you cannot
be sure that your palo string will be there. So I greatly
prefer a solution based on bfd and look under /boot (or
any other directory found on palo line option)

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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On Tue, Jan 22, 2002 at 07:58:22AM +1000, Matt.VanDeWerken@csiro.au wrote:
> Hi all:
> 
> * drop to shell, do "mkdir /inst ; mount /dev/sdb /inst -t iso9660"
> 
> Note that this last step only sometimes works. That is, only sometimes does
> the install program see the mounted directory.

Are you confident that you are terminating the external scsi bus
properly?  0.9.2 ISO used an older slower scsi driver that was possibly
less susceptible to bad termination.

Richard




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From: "Witvliet, Hans" <Hans.Witvliet@Alcatel.nl>
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Subject: [parisc-linux] B2000
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LS
Even though under "tested hardware"  it stated : B, C and J workstations 

I noticed that there were some difficulties with the B2000 in previous
versions
With the latest version (0.93) I still get after booting (from internal
cdrom-drive):

FLT CBF4: SYS BD 
Bad OS HPMC cksm 
FLT CBFC: SYS BD 
Os hpmc br err 
FLT CBF0: SYS BD 
HPMC initiated 
FLT 500B: SYS BD 
Bus timeout 

(hangs)

Kind regards, Hans



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Bruno,

On Tue, Jan 22, 2002 at 01:25:42PM +0100, Bruno Vidal wrote:
> I think that Enrik has a good starting point, where can I find
> a good how-to about libbfd ? there is nothing under /usr/share/doc ?
> A web page ?

(assuming debian) you can install `bintutils-doc and will be
able to do `info bfd afterwards. But its far from a tutorial ...

Enrik
-- 
Enrik Berkhan                                         plan b. GmbH
                                                      Rppurrer Strae 4
+49-721-388582 (voice)                                76137 Karlsruhe
+49-721-388581 (fax)                                  Germany



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On Tue, Jan 22, 2002 at 01:25:42PM +0100, Bruno Vidal wrote:
> 	Hi
> I think that Enrik has a good starting point, where can I find
> a good how-to about libbfd ? there is nothing under /usr/share/doc ?
> A web page ?

apt-get install binutils-doc
info bfd

-- 
Revolutions do not require corporate support.



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> > Hi all:
> > 
> > * drop to shell, do "mkdir /inst ; mount /dev/sdb /inst -t iso9660"
> > 
> > Note that this last step only sometimes works. That is, only sometimes does
> > the install program see the mounted directory.
> 
> Are you confident that you are terminating the external scsi bus
> properly?  0.9.2 ISO used an older slower scsi driver that was possibly
> less susceptible to bad termination.
> 
> Richard
> 
>

I can't get any of the 715/50's to run stably with the newer
SCSI driver. And after testing I can almost pinpoint with 95%
accuracy tha it's the new driver.

I have yet to go about running the latest kernel with the sim700
driver. Though if I get some time this afternoon I will.
(Just spent some time adding diskless 715/50's to our cluster)

Has anyone been able to get SCSI disks that are not from HP
to work on the 715's? (New terminator? Different terminator?)

c. 



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Subject: Re: [parisc-linux] vmlinux header for savecrash.
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Bruno Vidal wrote:
> 	Sorry, but on my system, fgrep gives nothing
> (and by using strings, I found nothing also).

grundler@gsyprf11:~$ uname -a
Linux gsyprf11.external.hp.com 2.4.17-pa11 #3 SMP Fri Jan 18 23:32:06 PST 2002 parisc64 unknown
grundler@gsyprf11:~$ strings /boot/vmlinux | fgrep 2.4.17
Linux version 2.4.17-pa11 (grundler@gsyprf10) (gcc version 3.0.3) #3 SMP Fri Jan 18 23:32:06 PST 2002
Linux 2.4.17-pa11
2.4.17-pa11
grundler@gsyprf11:~$ 

Perhaps a simple fgrep isn't sufficient for what you have.
You might need to pick out certain fields.

> And I
> can't use dmesg buffer, because by definition it is a buffer,
> so after running sometime, the palo boot strings is not
> in the buffer anymore.

right. They should be in the /var/log/messages if they are no longer
in the dmesg buffer.

> Some new ideas ?

Randolph Chung and I were wondering if dump driver could save a
parameter passed in by palo: eg "boot_kernel=/boot/vmlinux-pa11".
I haven't checked if something like that already exists.

grant



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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] vmlinux header for savecrash.
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> Randolph Chung and I were wondering if dump driver could save a
> parameter passed in by palo: eg "boot_kernel=/boot/vmlinux-pa11".
> I haven't checked if something like that already exists.

Is this really an arch-dependent problem? How do other architectures (I
think lkcd works on i386 and alpha?) do this?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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"Witvliet, Hans" wrote:
> LS
> Even though under "tested hardware"  it stated : B, C and J workstations 

The kernel runs those boxes.

> I noticed that there were some difficulties with the B2000 in previous
> versions
> With the latest version (0.93) I still get after booting (from internal
> cdrom-drive):

Built-in IDE cd-rom drive on BCJ-[123567]XXX is not supported.
Off and on I've been hacking on suckyio IDE support but it's still
not working.

Install from either external SCSI CD-ROM or via network.

grant




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	Hi
I don't know how to retrieve option pass to the kernel,
but give me some clue, and I'll add this information in
the dump header asap, because it is a really good idea :-)

Grant Grundler wrote:
> 
> Randolph Chung and I were wondering if dump driver could save a
> parameter passed in by palo: eg "boot_kernel=/boot/vmlinux-pa11".
> I haven't checked if something like that already exists.
> 
> grant



-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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lkcd is really simple, it takes /boot/vmlinux, /boot/kerntype, 
and /boot/System.map. It don't take care about that, it is the 
user problem :-(, I want to be a little more user friendly.

Randolph Chung wrote:
> 
> > Randolph Chung and I were wondering if dump driver could save a
> > parameter passed in by palo: eg "boot_kernel=/boot/vmlinux-pa11".
> > I haven't checked if something like that already exists.
> 
> Is this really an arch-dependent problem? How do other architectures (I
> think lkcd works on i386 and alpha?) do this?
> 
> randolph
> --
>    @..@                                         http://www.TauSq.org/
>   (----)
>  ( >__< )
>  ^^ ~~ ^^

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] vmlinux header for savecrash.
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To: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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In reference to a message from Bruno Vidal, dated Jan 22:
> 	Hi
> I don't know how to retrieve option pass to the kernel,
> but give me some clue, and I'll add this information in
> the dump header asap, because it is a really good idea :-)

static char *boot_kernel = "/boot/vmlinux";
MODULE_PARM(boot_kernel, "s")
MODULE_PARM_DESC(boot_kernel, "Boot kernel path")

then i guess somehwere in your dump code strcpy boot_kernel to a known
location in the dump.

of course we still need to change palo to do this (pass the
parameter)... paul, any comments?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Bruno Vidal wrote:
> 	Hi
> I don't know how to retrieve option pass to the kernel,
> but give me some clue, and I'll add this information in
> the dump header asap, because it is a really good idea :-)

(credit: Randolph brought it up first)

Look at arch/parisc/kernel/setup.c:setup_cmdline().
We can add pretty much anything we need here.

It just occurred to me that the source media (ie network, disk)
needs to be identified as well.
Is the vmlinux/System.map required to be on the root file system?
Would it be reasonble if savecrash told the user that /boot/vmlinux
wasn't the matching kernel and where to put the right vmlinux/System.map?

Allowing users to drop the right kernel in place *after* the
crash dump was recovered seems reasonable thing to do.
Someone might want to move the crash dump to a bigger/faster
system to do the actual analysis.

grant



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Grant Grundler wrote:
> Built-in IDE cd-rom drive on BCJ-[123567]XXX is not supported.
> Off and on I've been hacking on suckyio IDE support but it's still
> not working.

In case anyone else wants to take a whack at IDE, I've posted my latest
diff on
	ftp://ftp.parisc-linux.org/patches/ide-2.4.17-pa13.diff

I won't be looking at this for the next week or so...too many other
things to do atm.

grant



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Hi all,

Just to relate an experience:

For my part, I just take the CD-0.9.3 and try to boot it with a B2000 and it
failled also for me with similar messages if I use the STI buildin console.
Well,... I disconnect ps/2 kbd and mouse and use a serial console (emulating
vt100) and it boot correctly (with internal ide cdrom drive) at leat till the 2
first Debian/GNU install dialog box. (I did not install actually because I have
not disk to use so it is possible that it would failled later because of ide
drive?).

Is it help?

Joel

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palo removes the "3/vmlinux" parameter (and the initrd= one too) before
passing command line to the kernel which is consistent with x86 I think.
Would it be helpful to add a kernel parameter like "palo_kernel=3/vmlinux"
which you could then retrieve from /proc/cmdline?  I know it's a pain
to turn 3/vmlinux into /boot/vmlinux but 3/vmlinux is all palo knows.

	-P



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On Tue, Jan 22, 2002 at 12:05:48PM -0500, Carlos O'Donell Jr. wrote:
> I can't get any of the 715/50's to run stably with the newer
> SCSI driver. And after testing I can almost pinpoint with 95%
> accuracy tha it's the new driver.

Have you tried hacking the driver to disable tagged commands, or at
least to limit the maximum tagged cmds per device to something small?

Richard




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Subject: [parisc-linux] [Linux-ia64] heads-up: don't treat __FUNCTION__ as a constant (fwd)
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Xref: news.gmane.org gmane.linux.ports.parisc:13848

This is worth repeating one more time.
Many of you are probably aware of this since parisc port has
already visited the __FUNCTION__ issue once before.

grant

------- Forwarded Message

From: David Mosberger <davidm@hpl.hp.com>
To: linux-ia64@linuxia64.org
X-URL: http://www.hpl.hp.com/personal/David_Mosberger/
Reply-To: davidm@hpl.hp.com
Subject: [Linux-ia64] heads-up: don't treat __FUNCTION__ as a constant

A heads-up about a change that's forthcoming in gcc3.1: the
__FUNCTION__ macro should no longer be treated as returning a constant
string literal.  gcc3.1 will still allow it, but issue an ugly warning
message.  In later releases, the feature will go away completely.

The reason for deprecating this feature is that ANSI C pretty much
disallows it: string literal concatenation is required to be done in a
phase *before* the name of the current function is known.  The
solution is to change something of the form:

	printk(__FUNCTION__": you lose\n");

into something like this:

	printk("%s: you lose\n", __FUNCTION__);

I did a quick grep over the ia64 code and found the following files
are using __FUNCTION__:

arch/ia64/kernel/efi.c
arch/ia64/kernel/palinfo.c
arch/ia64/kernel/perfmon.c
arch/ia64/kernel/smp.c
arch/ia64/kernel/unaligned.c
arch/ia64/sn/io/pci.c
arch/ia64/sn/io/pci_bus_cvlink.c
arch/ia64/sn/io/pciba.c
arch/ia64/sn/io/pciio.c
arch/ia64/sn/io/sn1/pcibr.c
arch/ia64/sn/io/sn2/ml_SN_intr.c
arch/ia64/sn/io/sn2/pcibr/pcibr_dvr.c

It might be a good idea to clean these up as you're working on it.
It's not urgent, of course, but I wanted to make you aware of this
issue so we can at least avoid writing new code using this construct.

Thanks,

	--david

_______________________________________________
Linux-IA64 mailing list
Linux-IA64@linuxia64.org
http://lists.linuxia64.org/lists/listinfo/linux-ia64


------- End of Forwarded Message




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On Tue, 22 Jan 2002, Carlos O'Donell Jr. wrote:
> I can't get any of the 715/50's to run stably with the newer
> SCSI driver. And after testing I can almost pinpoint with 95%
> accuracy tha it's the new driver.
>
> I have yet to go about running the latest kernel with the sim700
> driver. Though if I get some time this afternoon I will.
> (Just spent some time adding diskless 715/50's to our cluster)
>
> Has anyone been able to get SCSI disks that are not from HP
> to work on the 715's? (New terminator? Different terminator?)

I had a 1G HP /dev/sda and a 4G Micropolis /dev/sdb in my 715/100. Didn't
realize that HP actually expects you to terminate the unused ports on the
back until I was provided a link to my users manual :-) I also had to set
the drive's parity on, and enable the 'wait for start' command.

I also ran an IBM 4G DFHS-S4W drive on it initially. That was quite early
on in the process, though, so I had lots of crashes etc. that I don't know
were related to Debian/HPPA being 'alpha' software or due to the drive :-)






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I've got stock 0.93 running on two 715/33's with:
COMPAQ C2247 (1gb scsi drives) and a seagate of recentish vintage(1gb
1/4 height from an SGI) in a 715/50
no problems
Aaron
On Tue, Jan 22, 2002 at 01:55:57PM -0900, Tom wrote:
> On Tue, 22 Jan 2002, Carlos O'Donell Jr. wrote:
> > I can't get any of the 715/50's to run stably with the newer
> > SCSI driver. And after testing I can almost pinpoint with 95%
> > accuracy tha it's the new driver.
> >
> > I have yet to go about running the latest kernel with the sim700
> > driver. Though if I get some time this afternoon I will.
> > (Just spent some time adding diskless 715/50's to our cluster)
> >
> > Has anyone been able to get SCSI disks that are not from HP
> > to work on the 715's? (New terminator? Different terminator?)
> 
> I had a 1G HP /dev/sda and a 4G Micropolis /dev/sdb in my 715/100. Didn't
> realize that HP actually expects you to terminate the unused ports on the
> back until I was provided a link to my users manual :-) I also had to set
> the drive's parity on, and enable the 'wait for start' command.
> 
> I also ran an IBM 4G DFHS-S4W drive on it initially. That was quite early
> on in the process, though, so I had lots of crashes etc. that I don't know
> were related to Debian/HPPA being 'alpha' software or due to the drive :-)
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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jsoe0708@tiscali.be wrote:
> Hi all,
> 
> Just to relate an experience:
> 
> For my part, I just take the CD-0.9.3 and try to boot it with a B2000 and it
> failled also for me with similar messages if I use the STI buildin console.
> Well,... I disconnect ps/2 kbd and mouse and use a serial console (emulating
> vt100) and it boot correctly (with internal ide cdrom drive) at leat till the
>    2
> first Debian/GNU install dialog box.

Yes - and that's as far as it will go.
palo uses IODC ("BIOS") to load the vmlinux.
That vmlinux does not know how to talk to the IDE CD-ROM interface
and can't load anything else. One should be able to do a network
install but start out by booting the ISO image.

grant



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Paul Bame wrote:
> 
> palo removes the "3/vmlinux" parameter (and the initrd= one too) before
> passing command line to the kernel which is consistent with x86 I think.
> Would it be helpful to add a kernel parameter like "palo_kernel=3/vmlinux"
> which you could then retrieve from /proc/cmdline?

Sort of. Actually, I was thinking the dump driver could use "palo_kernel"
global to save off the file name of the vmlinux which crashed.
setup_cmdline could parse/squirrel away the palo_kernel parameter.

> I know it's a pain
> to turn 3/vmlinux into /boot/vmlinux but 3/vmlinux is all palo knows.

Isn't /vmlinux a symlink to /boot/vmlinux?
ie the file palo loaded is whatever the symlink points to.

BTW, I explicitly specify /boot/vmlinux in my palo.conf files
and see 3/boot/vmlinux in my palo command line.

thanks,
grant



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Quoting Grant Grundler <grundler@dsl2.external.hp.com>:

> jsoe0708@tiscali.be wrote:
> > Hi all,
> > 
> > Just to relate an experience:
> > 
...
> palo uses IODC ("BIOS") to load the vmlinux.
> That vmlinux does not know how to talk to the IDE CD-ROM interface
> and can't load anything else. 

Ok I am ignoring this detail (sorry).

> One should be able to do a network
> install but start out by booting the ISO image.
> 
> grant
> 
Tanks for info,
        Joel

PS: I would not be able to help to improve ide drivers (sorry)


-------------------------------------------------
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On Tue, Jan 22, 2002 at 12:59:03PM -0700, Paul Bame wrote:
> palo removes the "3/vmlinux" parameter (and the initrd= one too) before
> passing command line to the kernel which is consistent with x86 I think.
> Would it be helpful to add a kernel parameter like "palo_kernel=3/vmlinux"
> which you could then retrieve from /proc/cmdline?  I know it's a pain
> to turn 3/vmlinux into /boot/vmlinux but 3/vmlinux is all palo knows.

Hmm, so why don't let palo calculate a CRC32 or MD5 (if affordable)
over the image it is about to boot and pass this as parameter that will
be saved in the dump? This would be very independent of filesystem
changes in the time between boot and crash (e.g. installing a new kernel
moving everything around in /boot). This could also be done for an
initrd image if used. And it still works if you have more than one
kernel image with the same "version" lying around.

Enrik
-- 
Enrik Berkhan                                         plan b. GmbH
                                                      Rppurrer Strae 4
+49-721-388582 (voice)                                76137 Karlsruhe
+49-721-388581 (fax)                                  Germany



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> Hmm, so why don't let palo calculate a CRC32 or MD5 (if affordable)
> over the image it is about to boot and pass this as parameter that will
> be saved in the dump? This would be very independent of filesystem
> changes in the time between boot and crash (e.g. installing a new kernel
> moving everything around in /boot). This could also be done for an
> initrd image if used. And it still works if you have more than one
> kernel image with the same "version" lying around.
> 

Having the CRC at dump time doesn't add more than just the utsname (i.e the
uname -a if you wish) as the utsname does have the uniq signature of the os
version PLUS the build time. So it is not possible to have 2 kernel with the
exact same version AND the same build time if they are different, or not only
different but compiled at different time.

The problem afterward at next reboot (while the dump seat in the dump area,
often the swap area) and while sometime rebooting a recovery kernel, i.e not
the one that just dumped, is to run savescrah, and have savecrash placing the
core along with its accompagnying kernel (and the loaded module too, more on
that later).

Finding the kernel who crash assuming a signature, mean then a scan of all the
kernel we could find on the machime, with simple heuristic we could reduce
this to / and /boot, then compare the utsname (version build time) for each.
This is rather brute force and it will be our 1st implementation, until we can
find the boot kernel path probably given by palo as palo is the one that can
get interactivly any kernel path....

Ultimatly if we can't figure out what was the kernel who crashed, we can ask
interactivly :-(

Cheers,
Phi




--
mailto:Philippe_Benard@hp.com
WTEC HP-UX kernel debugging tools



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	Hi
I start to look a bit more deeply in the dump
I'm creating. And I found that the physical
memory start at address 0x0000000010000000.
Is it normal ? Or do I missed something ?

btw I've added the dump option "s", and by
default it is /boot/vmlinux. So when palo will
be able to give us the option, we will have the
true kernel path directly in the dump header.

	thanks all.

ps: phi, do you want I add the kernel path in 
the INDEX file ?

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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> > I know it's a pain
> > to turn 3/vmlinux into /boot/vmlinux but 3/vmlinux is all palo knows.
>
> Isn't /vmlinux a symlink to /boot/vmlinux?
> ie the file palo loaded is whatever the symlink points to.
Can you guarantee, that everybody will have this link?
(I for example don't right now - I always thought, this is just for
historical reasons)

> BTW, I explicitly specify /boot/vmlinux in my palo.conf files
> and see 3/boot/vmlinux in my palo command line.
Which means, /boot is not a separate partition as some people like to keep
it. So you can't count on that either.

ad




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We have now put up a mirror of ftp.parisc-linux.org/pub at our ftp mirror
here at ACC (Academic Computer Club at Ume University). It updates daily,
but we do not mirror cvs/checkedout.

The access methods:
ftp: ftp://ftp.acc.umu.se/mirror/ftp.parisc-linux.org/
http: http://ftp.acc.umu.se/mirror/ftp.parisc-linux.org/
rsync: ftp.acc.umu.se::mirror/ftp.parisc-linux.org/

/Mattias Wadenstein




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Hello,

Does anyone have X working on an HP 715/100 with an A1097C monitor and 0.9.3
Linux?  Joel Soete was nice enough to send me his config files from his 712
and B180, but they have not solved the problem.  Thank you for any input.  I
have included my XFree86.0.log for fun.

Sincerely,
Dennis Faucher
Technical Consultant
Hewlett-Packard Company
https://www.ecardfile.com/id/dennis_faucher (Contact)
http://e-services.hp.com (E-Services) 


This is a pre-release version of XFree86, and is not supported in any
way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
please check the latest version in the XFree86 CVS repository
(http://www.XFree86.Org/cvs)

XFree86 Version 4.1.0.1 / X Window System
(protocol Version 11, revision 0, vendor release 6510)
Release Date: 21 December 2001
	If the server is older than 6-12 months, or if your card is
	newer than the above date, look for a newer version before
	reporting problems.  (See http://www.XFree86.Org/FAQ)
Build Operating System: Linux 2.4.16-64 parisc64 [ELF] 
(==) Log file: "/var/log/XFree86.0.log", Time: Fri Jan 18 19:58:34 2002
(==) Using config file: "/etc/X11/XF86Config-4"
Markers: (--) probed, (**) from config file, (==) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) ServerLayout "Simple Layout"
(**) |-->Screen "Screen 1" (0)
(**) |   |-->Monitor "HP A1097C"
(**) |   |-->Device "HP Framebuffer"
(**) |-->Input Device "Mouse1"
(**) |-->Input Device "Keyboard1"
(**) Option "AutoRepeat" "500 30"
(**) Option "XkbRules" "xfree86"
(**) XKB: rules: "xfree86"
(**) Option "XkbModel" "pc101"
(**) XKB: model: "pc101"
(**) Option "XkbLayout" "us"
(**) XKB: layout: "us"
(==) Keyboard: CustomKeycode disabled
(**) FontPath set to
"/usr/X11R6/lib/X11/fonts/misc/,/usr/X11R6/lib/X11/fonts/75dpi/:unscaled,/us
r/X11R6/lib/X11/fonts/100dpi/:unscaled,/usr/X11R6/lib/X11/fonts/Type1/,/usr/
X11R6/lib/X11/fonts/Speedo/,/usr/X11R6/lib/X11/fonts/75dpi/,/usr/X11R6/lib/X
11/fonts/100dpi/"
(**) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(--) using VT number 7

(WW) Cannot open APM
(EE) No OS PCI support available
(II) Addressable bus resource ranges are
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
	[1] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) OS-reported resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) OS-reported resource ranges after removing overlaps with PCI:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) All system resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
	mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
(II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,
	pm2, pm, 300sx, 500tx, mx, delta
	S3VIdentify
(II) S3VIRGE: driver (version 1.6.13) for S3 ViRGE chipsets: virge, 86C325,
	virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
	86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
	trio 3d/2x, 86C362, 86C368
(II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
	SIS300, SIS630, SIS540
(II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
	Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
	Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
	TwisterK
(II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, cyber9388,
	cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
	tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
	providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
	cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
	cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
	ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
	ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
	3dfx Voodoo3, 3dfx Voodoo5
(II) FBDev: driver for framebuffer: fbdev, afb
(II) ATI: ATI driver (version 6.3.6) for chipsets: ati
(II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
	ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
	ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
	ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
	ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
	ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
	ATI Rage 128 Mobility ML (AGP)
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
	ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
	ATI Radeon VE (AGP)
(II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,
	imstt3d
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) v4l driver for Video4Linux
	S3VProbe begin
(II) FBDev(0): using default device
(II) Running in FRAMEBUFFER Mode
(**) FBDev(0): Depth 8, (--) framebuffer bpp 8
(==) FBDev(0): Default visual is PseudoColor
(==) FBDev(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDev(0): Hardware:  (vidmem: 8192k)
(II) FBDev(0): Checking Modes against framebuffer device...
(II) FBDev(0): 	mode "1280x1024" ok
(II) FBDev(0): Checking Modes against monitor...
(--) FBDev(0): Virtual size is 1280x1024 (pitch 1280)
(**) FBDev(0): Built-in mode "current": 28000.0 MHz, 21875.0 kHz, 21362.3 Hz
(II) FBDev(0): Modeline "current"  28000.00  1280 1280 1280 1280  1024 1024
1024 1024 -hsync -vsync -csync
(==) FBDev(0): DPI set to (75, 75)
(**) FBDev(0): Using "Shadow Framebuffer"

Fatal server error:
AddScreen/ScreenInit failed for driver 0


When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to submit@bugs.debian.org.



From - Thu Nov 08 21:21:27 2018
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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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Subject: [parisc-linux] Dump: pb with module_list
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This is a multi-part message in MIME format.
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	Hi
There is something I don't understand (and I really
dont like to not understand). I didn't have any pb
with utsname. But now I want to retrieve the loaded 
modules at dump time. In order to do that, I wrote
a very simple loop (it is based on find_module function).
It is based on the pointer "module_list". this is define
in linux/module.h as: 
extern struct module *module_list;

Because I don't want to modify kernel/module.c
I've put my function in my dump_base.c
(it already include linux/module.h). It compile right,
but when using depmod, insmod, etc...:
dump.o: unresolved symbol module_list
I've already recompile the entire kernel, make dep, etc...

I'm probably missing something, but what ????

	thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Dump: pb with module_list
Date: Wed, 23 Jan 2002 22:00:33 +0000
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On Wed, Jan 23, 2002 at 07:15:40PM +0100, Bruno Vidal wrote:
> 	Hi
> There is something I don't understand (and I really
> dont like to not understand). I didn't have any pb
> with utsname. But now I want to retrieve the loaded 
> modules at dump time. In order to do that, I wrote
> a very simple loop (it is based on find_module function).
> It is based on the pointer "module_list". this is define
> in linux/module.h as: 
> extern struct module *module_list;
> 
> Because I don't want to modify kernel/module.c
> I've put my function in my dump_base.c
> (it already include linux/module.h). It compile right,
> but when using depmod, insmod, etc...:
> dump.o: unresolved symbol module_list
> I've already recompile the entire kernel, make dep, etc...
> 
> I'm probably missing something, but what ????

You need to export the symbol for modules to see it.  See
arch/parisc/kernel/parisc_ksyms.c for example.

Richard




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From: Grant Grundler <grundler@dsl2.external.hp.com>
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jsoe0708@tiscali.be wrote:
> PS: I would not be able to help to improve ide drivers (sorry)

Don't feel bad. In this case I wasn't either...at least not
to the point of a working IDE on suckyio. And I thought I could. :^(

grant



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Bruno Vidal wrote:
> 	Hi
> I start to look a bit more deeply in the dump
> I'm creating. And I found that the physical
> memory start at address 0x0000000010000000.
> Is it normal ? Or do I missed something ?

Uhm...I don't think thats right. All parisc boxes have
physical memory that's zero based. You should be able
to verify this with any HPUX crash dump.

Post where you are getting the data from and perhaps
we can help correct it.

> btw I've added the dump option "s", and by
> default it is /boot/vmlinux. So when palo will
> be able to give us the option, we will have the
> true kernel path directly in the dump header.

That's reasonable - don't forget to query or tell the user
where the vmlinux belongs in case it's not available.

grant



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Andreas Deresch wrote:
> > Isn't /vmlinux a symlink to /boot/vmlinux?
> > ie the file palo loaded is whatever the symlink points to.
> Can you guarantee, that everybody will have this link?

Of course not. I'm refering to a default installation.
I delete that link and replace /etc/palo.conf with my own.
But I'm hardly a "regular" user.

> (I for example don't right now - I always thought, this is just for
> historical reasons)


> > BTW, I explicitly specify /boot/vmlinux in my palo.conf files
> > and see 3/boot/vmlinux in my palo command line.
> Which means, /boot is not a separate partition as some people like to keep
> it. So you can't count on that either.

Right. I like to have lots of room for kernels. :^)
And if one wanted to have / as an ext3, it would make
sense to have /boot as an ext2 for loading kernels and then
the / could be the rest of the disk (ignoring the 2GB
IODC limitation).

grant



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Richard Hirst wrote:
> > I'm probably missing something, but what ????
> 
> You need to export the symbol for modules to see it.  See
> arch/parisc/kernel/parisc_ksyms.c for example.

And add the export-objs variable to your Makefile.
See drivers/*/Makefile or arch/parisc/kernel/Makefile.

grant



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Follow up to parisc-linux@lists.parisc-linux.org only please.
(ie this isn't a debian linux issue)

Vlad Markov wrote:
> I get the following message when I boot up on a 735/99:
> Jan 22 19:12:41 grumpy kernel: scsi0 (1:0) Target is suffering from tag
>	starvation.

Seems only 53c700.c prints this msg. Is this the right driver?

Normally you shouldn't see this *if* the device supports tagged commands.
I can never remember the SCSI driver options (the parisc-linux FAQ has 
the URL to them) but one of them will either disable or limit 
"queue depth" for Queue Tags and that should take care of it.

BTW, normally you want to post the /proc/scsi/scsi info for
the devices in question.

> The kernel Iam using is:
> Jan 22 19:12:41 grumpy kernel: Linux version 2.4.16-32 (root@paer) (gcc versi
>   on

> 3.0.3) #1 Sat Dec 29 01:28:13 MST 2001
> 
> I suspect this is not a good message - should I worry? 

Panic would be worse ;^)

grant



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On Thu, Jan 24, 2002 at 11:22:05PM -0700, Grant Grundler wrote:
> Bruno Vidal wrote:
> > 	Hi
> > I start to look a bit more deeply in the dump
> > I'm creating. And I found that the physical
> > memory start at address 0x0000000010000000.
> > Is it normal ? Or do I missed something ?
> 
> Uhm...I don't think thats right. All parisc boxes have
> physical memory that's zero based. You should be able
> to verify this with any HPUX crash dump.
> 
> Post where you are getting the data from and perhaps
> we can help correct it.

We start mapping physical ram at address 0x0000000010000000.  So physical
address 0 is mapped at virtual address 0x0000000010000000 when in
the kernel.

-- 
Revolutions do not require corporate support.



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This is a multi-part message in MIME format.
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	Hi
To do at least a sanity check when retrieving a module object
I try to understand the size store in module structure. What
is it ? Even cksum, neither "size" command find the same information ?
Do you know how this size is calculated ?

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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On Thu, Jan 24, 2002 at 11:55:01PM -0700, Grant Grundler wrote:
> 
> Follow up to parisc-linux@lists.parisc-linux.org only please.
> (ie this isn't a debian linux issue)
> 
> Vlad Markov wrote:
> > I get the following message when I boot up on a 735/99:
> > Jan 22 19:12:41 grumpy kernel: scsi0 (1:0) Target is suffering from tag
> >	starvation.
> 
> Seems only 53c700.c prints this msg. Is this the right driver?

Should be; 735 has unsupported 53c720 FWD, and 53c700 or 710 driven by
53c700.c.  I assume Vlad has external narrow SE disks attached.

> Normally you shouldn't see this *if* the device supports tagged commands.

I used to get this a lot, until James changed the driver to only report
the first occurance of it.  Don't remember the exact details, but iirc
it is for info only, and non-fatal.  From the code it looks like it
means some cmnd has been sitting in the drive unprocessed for too long,
and the code rejects new cmds until those older ones have been processed
or timed out.

> I can never remember the SCSI driver options (the parisc-linux FAQ has 
> the URL to them) but one of them will either disable or limit 
> "queue depth" for Queue Tags and that should take care of it.

Hmm, I thought that would be a feature of a specific driver, not the
upper layers.  53c700.c doesn't (yet) have any boot options to disable
tags.

Richard




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From: "FAUCHER,DENNIS (HP-USA,ex1)" <dennis_faucher@hp.com>
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Hello,

I just tried the 32-2.4.17-pa03.tar.gz kernel on my 715/100 workstation as a
step to getting X to work, and now the console (HP A1097C) doesn't scroll.
Each line of text covers the previous line on the first line on the console.
The regular 2.4.9-32 kernel scrolls fine.  Any ideas would be appreciated.
Thank you.

Sincerely,
Dennis Faucher
Technical Consultant
Hewlett-Packard Company
https://www.ecardfile.com/id/dennis_faucher (Contact)
http://e-services.hp.com (E-Services) 



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Subject: [parisc-linux] g++ problem with `std' namespace
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Xref: news.gmane.org gmane.linux.ports.parisc:13871

I seem to have run into a problem with GCC on parisc-linux which the
script below will demonstrate.  I get an "`fread' undeclared in namespace
`std'" error.  The example works fine on four other architectures, but
they all have gcc 2.95.x while my parisc box has gcc 3.0.x.  Is this a
parisc problem, a gcc problem, or a coder problem?

Regards,

- Greg


#!/bin/sh
cat >foo.cc <<EOF
#include <stdio.h>

class FOO
{
public:
  FOO(void);
  int read(char *, int);

  FILE *fd;
};

FOO::FOO(void)
{
  fd = stdin;
}

int FOO::read(char *buf, int size)
{
  return std::fread(buf, size, 1, fd);
}
      
int main(int argc, char **argv)
{
  FOO foo;
  char buf[512];

  foo.read(buf, 512);

  return 0;
}
EOF
g++ foo.cc




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> they all have gcc 2.95.x while my parisc box has gcc 3.0.x.  Is this a
> parisc problem, a gcc problem, or a coder problem?

It's a coder problem.  Y'll have to read up on libstdc++.  Gcc 3.X has
a new more library implementation.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: Re: [parisc-linux] g++ problem with `std' namespace
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On Fri, Jan 25, 2002 at 09:54:46AM -0600, Greg Ingram wrote:
> 
> I seem to have run into a problem with GCC on parisc-linux which the
> script below will demonstrate.  I get an "`fread' undeclared in namespace
> `std'" error.  The example works fine on four other architectures, but
> they all have gcc 2.95.x while my parisc box has gcc 3.0.x.  Is this a
> parisc problem, a gcc problem, or a coder problem?

bit of each.  gcc changed to be closer to being standards compliant,
and broke a lot of noncompliant code that had previously worked.
In this case, fread is no longer in std.  You should be using ::fread,
not std::fread

Oh -- just figured out a different solution.  If you replace #include
<stdio.h> with #include <cstdio>, std::fread works.

-- 
Revolutions do not require corporate support.



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From: Mikko Palo <mpalo@drysoft.org>
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Subject: [parisc-linux] 712/60, 2.4.17-pa13, debian testing, php4 and apache don't work..
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Hi!

I don't know, does this email belong to this list or to debian bug
database. Nevertheless, I installed debian to my 712 from 0.9.3 CD and
updated everything by using apt-get update and apt-get upgrade commands.
Compiled the kernel myself, all working nicely. Then installed apache
and php4 via apt-get.

When trying to start apache by the command /etc/init.d/apache start, it
doesn't start. There is a line:
PHP Fatal error:  Unable to start session mm module in Unknown on line 0
in /var/log/apache/error_log..

Then I searched with google the solution for this bug. None of them
helped.

Straced a little /usr/sbin/apache:

--clippeti clip--

shmget(IPC_PRIVATE, 33554432, IPC_CREAT|0x180|0600) = 360448
shmat(360448, 0x80808080, 0ptrace: umoven: Input/output error
)            = ?
shmctl(360448, IPC_STAT, 0x80808080)    = 0
getuid()                                = 0
getgid()                                = 0
shmctl(360448, IPC_SET, 0x80808080)     = 0
shmctl(360448, IPC_RMID, 0x80808080)    = 0
unlink("")                              = -1 ENOENT (No such file or
directory)
open("", O_RDWR|O_CREAT, 0600)          = -1 ENOENT (No such file or
directory)
shmdt(0xfffffffe)                       = 0
shmctl(360448, IPC_RMID, 0xfffffffe)    = -1 EINVAL (Invalid argument)
unlink("")                              = -1 ENOENT (No such file or
directory)
write(2, "PHP Fatal error:  Unable to star"..., 72) = 72
write(2, "\n", 1)                       = 1
exit(-2)                                = ?

--clippeti clip--

I doubt that there is something wrong between mm module and shared
memory code in kernel? Or am I totally wrong?

So what should I do that I will get it working?

-MP




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Richard Hirst wrote:
> I used to get this a lot, until James changed the driver to only report
> the first occurance of it.  Don't remember the exact details, but iirc
> it is for info only, and non-fatal.  From the code it looks like it
> means some cmnd has been sitting in the drive unprocessed for too long,
> and the code rejects new cmds until those older ones have been processed
> or timed out.

Ah ok...does "starvation" properly described by the following scenario?

While the drive is completing IO requests as fast as it can,
*some* IO's don't complete because they never become the most
optimal one to complete. This is an inherent "unfairness"
in the normal SCSI  Queue tag. (Two other types of tags exist but
are never used by Unix OS's AFAICT: ordered, Head)

HP branded (and tested) drives are required to return a completion
for any outstanding IO within 3 seconds. ie if 8 tags are active
any given time, the drive can complete the IO's in any order until
an IO reaches this 3 second limit. The reason for the limit is
to prevent outstanding file system meta data from locking up access
to portions the file system for 30+ seconds.

> Hmm, I thought that would be a feature of a specific driver, not the
> upper layers.  53c700.c doesn't (yet) have any boot options to disable
> tags.

hmmm...could we just replace the following constant with
a MODULE_PARAM() variable?

53c700.h:#define NCR_700_MAX_TAGS               16

In the interim, I suggest reducing this until the problem
goes away for that disk.

IIRC, HPUX allows the user to set this on a per disk basis
using scsictl command.

thanks,
grant



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From: Mikko Palo <mpalo@drysoft.org>
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Subject: Re: [parisc-linux] 712/60, 2.4.17-pa13, debian testing, php4 and
	apache don't work.. -- SOLVED
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Sigh, I hate to reply myself, but..

Problem solved, had to compile apache, mm and php4 from source using
apt-get source --build XXXX command. Now everything working very
perfectly..

Keep working good job, guys! :)

-MP

On Sat, 2002-01-26 at 02:09, Mikko Palo wrote:
> Hi!
> 
> I don't know, does this email belong to this list or to debian bug
> database. Nevertheless, I installed debian to my 712 from 0.9.3 CD and
> updated everything by using apt-get update and apt-get upgrade commands.
> Compiled the kernel myself, all working nicely. Then installed apache
> and php4 via apt-get.
> 
> When trying to start apache by the command /etc/init.d/apache start, it
> doesn't start. There is a line:
> PHP Fatal error:  Unable to start session mm module in Unknown on line 0
> in /var/log/apache/error_log..
> 
> Then I searched with google the solution for this bug. None of them
> helped.
> 
> Straced a little /usr/sbin/apache:
> 
> --clippeti clip--
> 
> shmget(IPC_PRIVATE, 33554432, IPC_CREAT|0x180|0600) = 360448
> shmat(360448, 0x80808080, 0ptrace: umoven: Input/output error
> )            = ?
> shmctl(360448, IPC_STAT, 0x80808080)    = 0
> getuid()                                = 0
> getgid()                                = 0
> shmctl(360448, IPC_SET, 0x80808080)     = 0
> shmctl(360448, IPC_RMID, 0x80808080)    = 0
> unlink("")                              = -1 ENOENT (No such file or
> directory)
> open("", O_RDWR|O_CREAT, 0600)          = -1 ENOENT (No such file or
> directory)
> shmdt(0xfffffffe)                       = 0
> shmctl(360448, IPC_RMID, 0xfffffffe)    = -1 EINVAL (Invalid argument)
> unlink("")                              = -1 ENOENT (No such file or
> directory)
> write(2, "PHP Fatal error:  Unable to star"..., 72) = 72
> write(2, "\n", 1)                       = 1
> exit(-2)                                = ?
> 
> --clippeti clip--
> 
> I doubt that there is something wrong between mm module and shared
> memory code in kernel? Or am I totally wrong?
> 
> So what should I do that I will get it working?
> 
> -MP
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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Subject: [parisc-linux] Re: tag starvation
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> > Normally you shouldn't see this *if* the device supports tagged
> > commands.

> I used to get this a lot, until James changed the driver to only
> report the first occurance of it.  Don't remember the exact details,
> but iirc it is for info only, and non-fatal.  From the code it looks
> like it means some cmnd has been sitting in the drive unprocessed for
> too long, and the code rejects new cmds until those older ones have
> been processed or timed out.

That's essentially it.  A driver is allowed to execute simple tagged commands 
in any order it chooses (since it knows its own internal platter topology, it 
is supposed to order the execution to be the fastest and most efficient 
possible).  However, the queuing algorithm on some drives can be inherently 
unfair; usually if you have a steady stream of I/Os to one part of the platter 
and a single I/O waiting for a different one.  An unfair algorithm may simply 
ignore a pending tagged command for quite a period of time (this is what is 
known as tag starvation).  If the command remains unprocessed for >2s, the 
mid-layer will begin error recovery, which can cause all sorts of problems.

Almost every good driver that implements tagged commands has some sort of 
algorithm to detect this situation and correct it before the mid layer comes 
in with the big hammer.  The message is a harmless warning that this type of 
correction has been activated in the driver.  For those who're interested in 
the details, I attach the explanation of what it actually does at the bottom.

> > I can never remember the SCSI driver options (the parisc-linux FAQ has
> > the URL to them) but one of them will either disable or limit 
> > "queue depth" for Queue Tags and that should take care of it.

> Hmm, I thought that would be a feature of a specific driver, not the
> upper layers.  53c700.c doesn't (yet) have any boot options to disable
> tags.

OK, my fault, I keep meaning to add it.  One thing that irritates me about 
this option is that it should be a global one (belonging to the whole SCSI 
subsystem) not local to each driver.  However, that's just a pet peeve of mine 
(in fact the SCSI subsystem should do an awful lot more of this type of option 
tracking and helping), it's not too difficult to implement, I'll get on with 
doing it.

James

How to Counter Tag Starvation
==============================

Most of the maintained drivers in Linux do this by keeping a timer on the 
outstanding tagged commands.  When they see the timer expire they switch from 
simple tags to ordered tags (an ordered tag is like a marker in the 
queue---you can't execute any command after an ordered tag untill all those 
before it have completed).

The 53c700 has a much simpler approach:  A tag is simply a number between 0 
and 255 identifying the command.  Obviously, there cannot be two tags with the 
same number to the same device outstanding at any one time.  For each device 
the 53c700 keeps track of the tag number of the oldest outstanding command and 
the next tag to allocate (the latter is incremented by one [modulo 256] every 
time a command goes out).  You can think of this as hands on a clock with 256 
graduations.  All outstanding tags are between the two hands.  The driver 
detects tag starvation when the hands try to cross (i.e. the next tag to be 
allocated would be the same tag number as the oldest outstanding command).  At 
that point, it prints the message and refuses to accept any further I/Os from 
the mid layer.  Eventually, the offending outstanding command will clear 
(possibly after all the rest of the commands are emptied) and the driver 
begins accepting I/Os again.

The reason for this approach in the 53c700 is that it is driving much older 
(and buggier) devices.  If the device messed up on the ordered queue tag we 
could get into a whole heap of trouble.

Obviously, since the SCSI mid-layer also keeps a timer on outstanding 
commands, it is a complete waste to duplicate this inside the driver.  
Unfortunately, the first the driver hears from the mid-layer about a problem 
command is when the mid-layer wants it aborted, by which time it is a bit late.





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On Fri, Jan 25, 2002 at 10:28:33PM -0700, Grant Grundler wrote:
> Ah ok...does "starvation" properly described by the following scenario?
> 
> While the drive is completing IO requests as fast as it can,
> *some* IO's don't complete because they never become the most
> optimal one to complete. This is an inherent "unfairness"
> in the normal SCSI  Queue tag. (Two other types of tags exist but
> are never used by Unix OS's AFAICT: ordered, Head)

Yes, that sums it up nicely.

> hmmm...could we just replace the following constant with
> a MODULE_PARAM() variable?
> 
> 53c700.h:#define NCR_700_MAX_TAGS               16

That sounds like a good idea; I think James was planning to add some
options like that to the driver, so we should check with him before
doing anything.

Richard




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Subject: [timball@tux.org: Re: [parisc-linux] 712/60, 2.4.17-pa13, debian testing, php4 and apache don't work.. -- SOLVED]
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Forgot to CC: the list... how does one request a pkg to be rebuilt?

--timball

----- Forwarded message from Timothy Ball <timball@tux.org> -----
On Sat, Jan 26, 2002 at 01:22:28PM +0200, Mikko Palo wrote:
> Sigh, I hate to reply myself, but..
> 
> Problem solved, had to compile apache, mm and php4 from source using
> apt-get source --build XXXX command. Now everything working very
> perfectly..
> 
> Keep working good job, guys! :)
> 

Actually all you had to do was recompile libmm11... I fixed this problem
this morning by just recompiling libmm11. I suppose it would be nice to
see if this issue is related to the cross compiling of pkgs.

--timball

----- End forwarded message -----

-- 
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James Bottomley wrote:
> That's essentially it.  A driver is allowed to execute simple tagged commands
> in any order it chooses (since it knows its own internal platter topology, it

James,
thanks for the excellent explanation.
But did you mean device or drive?  (instead of "driver")

> ignore a pending tagged command for quite a period of time (this is what is 
> known as tag starvation).  If the command remains unprocessed for >2s, the 
> mid-layer will begin error recovery, which can cause all sorts of problems.

ah...that explains it. Most HP drives are expected to have 3s.

> One thing that irritates me about 
> this option is that it should be a global one (belonging to the whole SCSI 
> subsystem) not local to each driver.

It should also be *per drive*. Different drives implement
different numbers of queue tags (eg disk array vs simple mech).

> How to Counter Tag Starvation
> ==============================
> 
> Most of the maintained drivers in Linux do this by keeping a timer on the 
> outstanding tagged commands.  When they see the timer expire they switch from
>    
> simple tags to ordered tags (an ordered tag is like a marker in the 
> queue---you can't execute any command after an ordered tag untill all those 
> before it have completed).

AFAIK, HP does not test disk drives to verify ordered tags work
correctly. One reason is we didn't want to expose new bugs by mixing
ordered with simple tags. The other reason is we saw a 25% performance
hit. The 5400 rpm 2GB drives at the time could complete ~80 IO/s with
simple tags. This dropped to 60-65 IO/s for ordered tags. Ordered tags
was considered an unacceptable solution at that point.

> The driver detects tag starvation when the hands try to cross (i.e. the
> next tag to be
> allocated would be the same tag number as the oldest outstanding command).
> At that point, it prints the message and refuses to accept any further
> I/Os from the mid layer.

Well done - I like this solution too.

> The reason for this approach in the 53c700 is that it is driving much older 
> (and buggier) devices.  If the device messed up on the ordered queue tag we 
> could get into a whole heap of trouble.

Exactly. Best case is the drive gets confused and locks up.
Worst case is it looses the data.

> Obviously, since the SCSI mid-layer also keeps a timer on outstanding 
> commands, it is a complete waste to duplicate this inside the driver.  
> Unfortunately, the first the driver hears from the mid-layer about a problem 
> command is when the mid-layer wants it aborted, by which time it is a bit lat
>   e.

This is fun part about driver interactions in the error recovery path.
Could one avoid this mess if the SCSI interface driver could guarantee
the IO will complete (with or w/o error) with-in the time frame
specified by the device (eg tape or disk) driver?

grant



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Subject: [parisc-linux] 743 VME board boots
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Hi,
  I just stuck a 743 board in a VME rack and powered it up - it "just
worked" :)   Did an install from a 0.9.3-pre CD via frame buffer
console. This board has a FWD zalon scsi expansion board, which was
detected ok, although I didn't have any devices on that interface.
Thanks to Grant for the boards.

Richard



Linux version 2.4.9-32 (root@paer) (gcc version 3.0.2 (Debian)) #1 Fri Nov 30 19:36:30 MST 2001
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model	00006040 00000481 00000000 00000000 4c418c55 00000000 00000004 00000072 00000072
vers	0000000c
CPUID	vers 0 rev 0
model	9000/743
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda3 HOME=/ console=tty0 sti=0 sti_font=VGA8x16 TERM=linux
Console: colour dummy device 160x64
Calibrating delay loop... 99.73 BogoMIPS
Memory: 126200k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Searching for devices...
Found devices:
1. Anole Artist Optional Graphics (10) at 0xf8000000 [1], versions 0x8, 0x0, 0x85
2. Anole 100 Core BA (11) at 0xf0100000 [2], versions 0x1b, 0x0, 0x81
3. Anole 100 Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x1b, 0x0, 0x82
4. Anole 100 Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x1b, 0x0, 0x8a
5. Anole 100 Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x1b, 0x0, 0x8c
6. Anole 100 Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x1b, 0x0, 0x74
7. Anole 100 Audio (10) at 0xf0104000 [2/0/8], versions 0x1b, 0x0, 0x7b
8. Anole 100 Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x1b, 0x0, 0x84
9. Anole 100 Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x1b, 0x0, 0x84
10. Anole 64 TIMI BA (11) at 0xffc11000 [7], versions 0x1b, 0x0, 0x93
11. Anole 100 VME Networking (10) at 0xffcf0000 [7/0/1], versions 0x1b, 0x0, 0x88
12. Anole 100 Timi RS-232 (10) at 0xffc1a000 [7/0/2], versions 0x21, 0x0, 0x8c
13. unknown device (10) at 0xffcf1000 [7/0/3], versions 0x1b, 0x0, 0x8f
14. Anole 100 (743/100) (0) at 0xfffbe000 [8], versions 0x604, 0x0, 0x4
15. unknown device (1) at 0xfffbf000 [9], versions 0x0, 0x0, 0x9
16. Shrike Add-on FW-SCSI (4) at 0xfff88000 [11], versions 0x14, 0x0, 0x89
17. Anole 100 VME BA (11) at 0xffc00000 [15], versions 0x1b, 0x0, 0x78
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
Lasi version 0 at 0xf0100000 found.
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
STI word mode ROM at f002e000, hpa=f8000000
STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1280
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 2b4ded6d, mmio: 0xf8100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
IRQ not found for serial device at 0xffc1a000
Warning : device (10, 0x21, 0x0, 0x8c) NOT claimed by Serial RS232
PS/2 keyboard port at 0xf0108000 (irq 69) found, device attached.
Lasi PS/2 transmit buffer timeout
PS/2 psaux port at 0xf0108100 (irq 69) found, no device attached.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 4F FE 1A IRQ 87.
82596.c $Revision: 1.26 $
SCSI subsystem driver Revision: 1.00
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3b-20010512
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
scsi1: (0:0) Synchronous at offset 8, period 236ns
  Vendor: TOSHIBA   Model: CD-ROM XM-5401TA  Rev: 1036
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi1: (1:0) Synchronous at offset 8, period 100ns
  Vendor: IBM       Model: DCHS04F  CLAR04   Rev: HP53
  Type:   Direct-Access                      ANSI SCSI revision: 02
scsi1: (4:0) Synchronous at offset 8, period 100ns
  Vendor: IBM       Model: DCHS04F  CLAR04   Rev: HP53
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi1, channel 0, id 1, lun 0
Attached scsi disk sdb at scsi1, channel 0, id 4, lun 0
scsi1: (1:0) Enabling Tag Command Queuing
SCSI device sda: 8813870 512-byte hdwr sectors (4513 MB)
Partition check:
 sda: sda1 sda2 sda3
scsi1: (4:0) Enabling Tag Command Queuing
SCSI device sdb: 8813870 512-byte hdwr sectors (4513 MB)
 sdb: sdb1
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 0, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.12
Lasi Harmony Audio rev. 0 at 0xf0104000, using IRQ 82
sticonsole_init: searching for STI ROMs
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Adding Swap: 249912k swap-space (priority -1)
eth0: link ok.
VFS: Disk change detected on device sr(11,0)
ISO 9660 Extensions: RRIP_1991A






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> > That's essentially it.  A driver is allowed to execute simple tagged
> > commands
> > in any order it chooses (since it knows its own internal platter
> > topology, it

> James, thanks for the excellent explanation. But did you mean device
> or drive?  (instead of "driver") 

drive (but actually device is more accurate).

> > One thing that irritates me about 
> > this option is that it should be a global one (belonging to the whole
> > SCSI 
> > subsystem) not local to each driver.

> It should also be *per drive*. Different drives implement different
> numbers of queue tags (eg disk array vs simple mech). 

That's what I mean:  Inside scsi_scan.c there's a table which identifies 
various devices (by INQUIRY string) and takes certain actions (scan all luns, 
turn on/off tag queueing etc.).  There should be module parameters that allow 
adding to or modifying this.  In addition, there should be a module parameter 
that allows setting these actions by (scsi,channel,target,lun) quad, then we 
wouldn't need each of the low level drivers to have its own module commands 
for doing this.

> > Obviously, since the SCSI mid-layer also keeps a timer on outstanding 
> > commands, it is a complete waste to duplicate this inside the driver.
> 
> > Unfortunately, the first the driver hears from the mid-layer about a
> > problem 
> > command is when the mid-layer wants it aborted, by which time it is a
> > bit lat
> >  e.

> This is fun part about driver interactions in the error recovery path.
> Could one avoid this mess if the SCSI interface driver could guarantee
> the IO will complete (with or w/o error) with-in the time frame
> specified by the device (eg tape or disk) driver? 

Actually, I looked and the timeout is now 10s, not 2s.  The upper device 
drivers (st, sd etc.) do get to override this.  The problems tend to come when 
the error recovery takes over.

James





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On Sun, Jan 27, 2002 at 03:17:44PM +0000, Richard Hirst wrote:
>   I just stuck a 743 board in a VME rack and powered it up - it "just
> worked" :)

Excellent :-)

> Found devices:
> 1. Anole Artist Optional Graphics (10) at 0xf8000000 [1], versions 0x8, 0x0, 0x85
> 2. Anole 100 Core BA (11) at 0xf0100000 [2], versions 0x1b, 0x0, 0x81
> 3. Anole 100 Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x1b, 0x0, 0x82
> 4. Anole 100 Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x1b, 0x0, 0x8a
> 5. Anole 100 Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x1b, 0x0, 0x8c
> 6. Anole 100 Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x1b, 0x0, 0x74
> 7. Anole 100 Audio (10) at 0xf0104000 [2/0/8], versions 0x1b, 0x0, 0x7b
> 8. Anole 100 Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x1b, 0x0, 0x84
> 9. Anole 100 Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x1b, 0x0, 0x84
> 10. Anole 64 TIMI BA (11) at 0xffc11000 [7], versions 0x1b, 0x0, 0x93
> 11. Anole 100 VME Networking (10) at 0xffcf0000 [7/0/1], versions 0x1b, 0x0, 0x88
> 12. Anole 100 Timi RS-232 (10) at 0xffc1a000 [7/0/2], versions 0x21, 0x0, 0x8c
> 13. unknown device (10) at 0xffcf1000 [7/0/3], versions 0x1b, 0x0, 0x8f
> 14. Anole 100 (743/100) (0) at 0xfffbe000 [8], versions 0x604, 0x0, 0x4
> 15. unknown device (1) at 0xfffbf000 [9], versions 0x0, 0x0, 0x9
> 16. Shrike Add-on FW-SCSI (4) at 0xfff88000 [11], versions 0x14, 0x0, 0x89
> 17. Anole 100 VME BA (11) at 0xffc00000 [15], versions 0x1b, 0x0, 0x78

device 13 is a Boot ROM.  And device 15 is Memory.  We can simply update
hardware.c for this.

> Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
> ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
> IRQ not found for serial device at 0xffc1a000
> Warning : device (10, 0x21, 0x0, 0x8c) NOT claimed by Serial RS232

This is because we don't have a driver which claims Timi.  Anyone happen
to have documentation on the Timi bus adapter?

> SCSI subsystem driver Revision: 1.00
> zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
> ncr53c8xx: 53c720 detected
> ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
> scsi0 : ncr53c8xx-3.4.3b-20010512

heh, fun.  So a Shrike works the same as a Zalon.. OK that does make sense.

> Lasi Harmony Audio rev. 0 at 0xf0104000, using IRQ 82

Cool, can you play mp3s?  The CPU should be fast enough :-)

-- 
Revolutions do not require corporate support.



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James Bottomley wrote:
> Actually, I looked and the timeout is now 10s, not 2s.

Ah ok. then really the question is if this happens with HP firmware or not.
(Eg ST15150WD should have HP12 firmware rev, iirc). I don't expect it to.

> The upper device 
> drivers (st, sd etc.) do get to override this.  The problems tend to come
> when the error recovery takes over.

errory recovery is a nightmare. For HPUX, we concluded we coudn't safely
guarantee the bus would be cleared until about 45 seconds after an IO
had be initiated. Roughly in the following order:
	30 sec	IO timeout
	10 sec	abort cmd to timeout (attempt to kill the original IO)
	 5 sec	post-reset delay (SCSI device recovery from bus reset)

Shortening the 30 second timer could be done but it would require
more restrictions on how much IO is going across the bus. non-trivial
problem given these were SCSI clusters.

grant



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On Sun, Jan 27, 2002 at 05:27:12PM +0000, Matthew Wilcox wrote:
> Cool, can you play mp3s?  The CPU should be fast enough :-)

Yes, uses about 38% CPU :-)

Here's a 2.4.17 bootlog with the previously unknown devices identified.

Richard


Linux version 2.4.17-pa15 (richard@beast) (gcc version 3.0.2 20010829 (prerelease)) #1 Sun Jan 27 18:16:34 GMT 2002
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00006040 00000481 00000000 00000000 4c418c55 00000000 00000004 00000072 00000072
vers  0000000c
model 9000/743
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/sda3 ro  console=tty0 sti=0 sti_font=VGA8x16
Console: colour dummy device 160x64
Calibrating delay loop... 99.73 BogoMIPS
Memory: 126352k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Searching for devices...
Found devices:
1. Anole Artist Optional Graphics (10) at 0xf8000000 [1], versions 0x8, 0x0, 0x85
2. Anole 100 Core BA (11) at 0xf0100000 [2], versions 0x1b, 0x0, 0x81
3. Anole 100 Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x1b, 0x0, 0x82
4. Anole 100 Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x1b, 0x0, 0x8a
5. Anole 100 Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x1b, 0x0, 0x8c
6. Anole 100 Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x1b, 0x0, 0x74
7. Anole 100 Audio (10) at 0xf0104000 [2/0/8], versions 0x1b, 0x0, 0x7b
8. Anole 100 Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x1b, 0x0, 0x84
9. Anole 100 Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x1b, 0x0, 0x84
10. Anole 100 TIMI BA (11) at 0xffc11000 [7], versions 0x1b, 0x0, 0x93
11. Anole 100 VME Networking (10) at 0xffcf0000 [7/0/1], versions 0x1b, 0x0, 0x88
12. Anole 100 Timi RS-232 (10) at 0xffc1a000 [7/0/2], versions 0x21, 0x0, 0x8c
13. Anole 100 Boot Rom (10) at 0xffcf1000 [7/0/3], versions 0x1b, 0x0, 0x8f
14. Anole 100 (743/100) (0) at 0xfffbe000 [8], versions 0x604, 0x0, 0x4
15. Memory Module (1) at 0xfffbf000 [9], versions 0x0, 0x0, 0x9
16. Shrike Add-on FW-SCSI (4) at 0xfff88000 [11], versions 0x14, 0x0, 0x89
17. Anole 100 VME BA (11) at 0xffc00000 [15], versions 0x1b, 0x0, 0x78
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
Lasi version 0 at 0xf0100000 found.
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
STI word mode ROM at f002e000, hpa=f8000000
STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1280
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 2b4ded6d, mmio: 0xf8100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
IRQ not found for serial device at 0xffc1a000
Warning : device (10, 0x21, 0x0, 0x8c) NOT claimed by Serial RS232
register_kbd_ops(102be4e8), 101ac78c, 101ac7d4
PS/2 keyboard port at 0xf0108000 (irq 69) found, device attached.
PS/2 psaux port at 0xf0108100 (irq 69) found, no device attached.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 4F FE 1A IRQ 87.
82596.c $Revision: 1.27 $
SCSI subsystem driver Revision: 1.00
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3b-20010512
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
scsi1: (0:0) Synchronous at offset 8, period 236ns
  Vendor: TOSHIBA   Model: CD-ROM XM-5401TA  Rev: 1036
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi1: (1:0) Synchronous at offset 8, period 100ns
  Vendor: IBM       Model: DCHS04F  CLAR04   Rev: HP53
  Type:   Direct-Access                      ANSI SCSI revision: 02
scsi1: (4:0) Synchronous at offset 8, period 100ns
  Vendor: IBM       Model: DCHS04F  CLAR04   Rev: HP53
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi1, channel 0, id 1, lun 0
Attached scsi disk sdb at scsi1, channel 0, id 4, lun 0
scsi1: (1:0) Enabling Tag Command Queuing
SCSI device sda: 8813870 512-byte hdwr sectors (4513 MB)
Partition check:
 sda: sda1 sda2 sda3
scsi1: (4:0) Enabling Tag Command Queuing
SCSI device sdb: 8813870 512-byte hdwr sectors (4513 MB)
 sdb: sdb1
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 0, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.12
Lasi Harmony Audio driver V0.9a, h/w id 20, rev. 18 at 0xf0104000, IRQ 82
sticonsole_init: searching for STI ROMs
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
NOT FREEING INITMEM
Adding Swap: 249912k swap-space (priority -1)
eth0: link ok.
eth0: link ok.





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Hi !
I am running PARISC Linux on an HP9000/735 workstation. I use the latest kernel and
updated the debian packages yesterday. Still the 'i' and the 'o' key don't work
under XFree. Everything else works fine. Has anyone found a solution for
using those keys under XFree on a HIL Keyboard?

Sven





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On Monday 28 January 2002 11:21, Sven Cronenberg wrote:
> Hi !
> I am running PARISC Linux on an HP9000/735 workstation. I use the latest
> kernel and updated the debian packages yesterday. Still the 'i' and the 'o'
> key don't work under XFree. Everything else works fine. Has anyone found a
> solution for using those keys under XFree on a HIL Keyboard?
>
> Sven

Hi Sven,

I started to debug it, but didn't find an solution yet.
AFAIT it's not related to any bug in the xkb maps, instead it seems to be a bug
somewhere in the X Server itself.
I'm still working on it, but of course any help much appreciated.

Regards,
Helge



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Hi there,

> revision 1.251
> date: 2002/01/22 05:09:00;  author: grundler;  state: Exp;  lines: +1 -1
> 2.4.17-pa13
> replace BUG() in csum_ipv6_magic() with both PA2.0 and PA1.1 __asm__.
> I modeled the asm after the generic csum_ipv6_magic().
> This code is *NOT* tested since I have no clue about IPV6.

and unfortunately, it doesn't work. This is what i get when i ping my 720
from an Intel box:

ICMPv6 checksum failed [3ffe:0400:0470:0004:0000:0000:0000:0001 >
ff02:0000:0000:0000:0000:0001:ff00:0002]
NET: 4 messages suppressed.

I'll try to have a look...

Cheers,
Jochen




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Jochen Friedrich wrote:
> and unfortunately, it doesn't work. This is what i get when i ping my 720
> from an Intel box:
> 
> ICMPv6 checksum failed [3ffe:0400:0470:0004:0000:0000:0000:0001 >
> ff02:0000:0000:0000:0000:0001:ff00:0002]
> NET: 4 messages suppressed.
> 
> I'll try to have a look...

Excellent - I just don't have more time to look at it.
Obviously, you want to look at the 32-bit version.

Another idea is to compare the generic code output with
the asm return value.

In any case, I'd be happy to commit any patch you come up.

grant



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Hi all,
Some good news from gcc-hppa maintainer.

If anyone has a clue about the malloc issues...it would be
interesting to get fixed.

enjoy!
grant

------- Forwarded Message

Subject: Re: gcc-3.1 bootstrap (keys)
Date: Mon, 28 Jan 2002 12:45:09 -0500 (EST)
From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>

The keys work.  I did quite a bit of work on the weekend and managed
to gcc-3.1 to boot on the machine.  I posted the testresults here:

<http://gcc.gnu.org/ml/gcc-testresults/2002-01/msg00545.html>.  The
g77 and objc results are excellent.  The gcc results are not too bad.
I think many of the failures there are due to the linker not providing
the correct stub for indirect calls involving doubles.  There is clearly
a problem involving unwinding/exception handling affecting the g++
results.  I had to rewrite the frame note code that Alan Modra added
to get a successful build.

I have observed one problem affecting the system that seems to occur
in g++ compilations which typically need a lot of memory allocated:

/home/dave/gcc-3.1/objdir/gcc/xgcc -B/home/dave/gcc-3.1/objdir/gcc/ -nostdinc++
- -L/home/dave/gcc-3.1/objdir/hppa-linux/libstdc++-v3/src -L/home/dave/gcc-3.1/obj
dir/hppa-linux/libstdc++-v3/src/.libs -B/home/dave/opt/gnu/hppa-linux/bin/ -B/ho
me/dave/opt/gnu/hppa-linux/lib/ -isystem /home/dave/opt/gnu/hppa-linux/include -
I../../../../gcc/libstdc++-v3/../gcc -I../../../../gcc/libstdc++-v3/../include -
I/home/dave/gcc-3.1/objdir/hppa-linux/libstdc++-v3/include/hppa-linux -I/home/da
ve/gcc-3.1/objdir/hppa-linux/libstdc++-v3/include -I../../../../gcc/libstdc++-v3
/libsupc++ -g -O2 -D_GNU_SOURCE -fno-implicit-templates -Wall -Wno-format -W -Ww
rite-strings -Winline -fdiagnostics-show-location=once -ffunction-sections -fdat
a-sections -g -c ../../../../gcc/libstdc++-v3/libsupc++/pure.cc  -fPIC -DPIC -o
pure.o

malloc: /build/buildd/bash-2.05a/dispose_cmd.c:224: assertion botched
free: called with unallocated block argument
Stopping myself...make[4]: *** [pure.lo] Aborted

I don't know if this is a problem with bash, malloc or sbrk.  Usually,
the compilation will succeed if I just restart it.

Dave
- -- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

------- End of Forwarded Message




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Grant Grundler writes:
> 
> Hi all,
> Some good news from gcc-hppa maintainer.
> 
> If anyone has a clue about the malloc issues...it would be
> interesting to get fixed.

this is bash. see http://bugs.debian.org/130051, however I am unable
to trigger this myself. One thing that could be tried: configure bash
--without-bash-malloc

	Matthias

> 
> enjoy!
> grant
> 
> ------- Forwarded Message
> 
> Subject: Re: gcc-3.1 bootstrap (keys)
> Date: Mon, 28 Jan 2002 12:45:09 -0500 (EST)
> From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
> 
> The keys work.  I did quite a bit of work on the weekend and managed
> to gcc-3.1 to boot on the machine.  I posted the testresults here:
> 
> <http://gcc.gnu.org/ml/gcc-testresults/2002-01/msg00545.html>.  The
> g77 and objc results are excellent.  The gcc results are not too bad.
> I think many of the failures there are due to the linker not providing
> the correct stub for indirect calls involving doubles.  There is clearly
> a problem involving unwinding/exception handling affecting the g++
> results.  I had to rewrite the frame note code that Alan Modra added
> to get a successful build.
> 
> I have observed one problem affecting the system that seems to occur
> in g++ compilations which typically need a lot of memory allocated:
> 
> /home/dave/gcc-3.1/objdir/gcc/xgcc -B/home/dave/gcc-3.1/objdir/gcc/ -nostdinc++
> - -L/home/dave/gcc-3.1/objdir/hppa-linux/libstdc++-v3/src -L/home/dave/gcc-3.1/obj
> dir/hppa-linux/libstdc++-v3/src/.libs -B/home/dave/opt/gnu/hppa-linux/bin/ -B/ho
> me/dave/opt/gnu/hppa-linux/lib/ -isystem /home/dave/opt/gnu/hppa-linux/include -
> I../../../../gcc/libstdc++-v3/../gcc -I../../../../gcc/libstdc++-v3/../include -
> I/home/dave/gcc-3.1/objdir/hppa-linux/libstdc++-v3/include/hppa-linux -I/home/da
> ve/gcc-3.1/objdir/hppa-linux/libstdc++-v3/include -I../../../../gcc/libstdc++-v3
> /libsupc++ -g -O2 -D_GNU_SOURCE -fno-implicit-templates -Wall -Wno-format -W -Ww
> rite-strings -Winline -fdiagnostics-show-location=once -ffunction-sections -fdat
> a-sections -g -c ../../../../gcc/libstdc++-v3/libsupc++/pure.cc  -fPIC -DPIC -o
> pure.o
> 
> malloc: /build/buildd/bash-2.05a/dispose_cmd.c:224: assertion botched
> free: called with unallocated block argument
> Stopping myself...make[4]: *** [pure.lo] Aborted
> 
> I don't know if this is a problem with bash, malloc or sbrk.  Usually,
> the compilation will succeed if I just restart it.
> 
> Dave
> - -- 
> J. David Anglin                                  dave.anglin@nrc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)
> 
> ------- End of Forwarded Message
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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There was a bit of chat about trying to make this work. Just figured I'd
mention that I've got X running on my 715/100 and A1097C monitor, with KDE
as the WM (not by choice, but it's working, so...)

In a nutshell, I installed the X packages, then 'dpkg-reconfigure
xserver-xfree86' and chose 'advanced'. Entered info as needed (monitor
settings 1280x1024, 78 horiz rate, 72 vertical refresh), then 8-bit color
default. Everything else was defaulted correctly (I believe).

http://www.alaskatech.org/stuff/XF86Config-4 is my working config file.

KDE isn't the speediest window manager for this machine - from 'startx'
until the system is responsive is around a minute or two, maybe a bit
more. But, it's working, and once loaded it isn't too bad. Something like
icewm-lite would probably be much speedier.

(Amazing what you can accomplish when someone says, "Hey, I'd like to buy
your 715 if you can get X working on it..." <g>)





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Post the link to the XF86Config-4 file, and within a few minutes I've
already gotten a hit on it. Guess that was needed :-)




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> and unfortunately, it doesn't work. This is what i get when i ping my 720
> from an Intel box:
> 
> ICMPv6 checksum failed [3ffe:0400:0470:0004:0000:0000:0000:0001 >
> ff02:0000:0000:0000:0000:0001:ff00:0002]
> NET: 4 messages suppressed.

should be fixed now.... pls give it a try. it was not adding proto
correctly.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Hi,
a buddy pointed me to the debian build archive,
because I had problems building a 64-bit octave executable
on AP-RISC-2 HP-UX-11.11.
I used the gcc-3.0.2 which was a 
 /usr/local/bin/gcc:     ELF-64 executable object file - PA-RISC 2.0
(LP64)
and it also produced such code. Unfortunately the octave builds,
but fails immediately by trivial operations.
I am also a little be astonished about the different object files
existing
on PA-Risc. There are 
/usr/local/bin/perl:    PA-RISC1.1 shared executable dynamically linked
-not stripped
as well as "PA-RISC2" executables.
Honestly I have no idea what the difference between ELF-64 and PA-RISC-2
is.
Are both 64 bit.

Finally I found the debian archive for octave. So my question is:

Do you build this octave for 
o linux on PA-Risc or also for
o HP-UX-11.11 ????

Is it finally 64 bit? and how did you build it.

I would appreciate any comments to my open questions.

thanks, daniel


-- 
Mit freundlichen Gruessen
    Daniel Heiserer

--------------------------------------------------------------
Dipl.-Phys. Daniel Heiserer, BMW AG, Knorrstrasse 147, 80788 Muenchen
Abteilung EK-212
Tel.: 089-382-21187, Fax.: 089-382-42820
mailto:daniel.heiserer@bmw.de 
Lageplan Standort FIZ:
http://www.stadtplandienst.de/query?ORT=M&STR=Knorrstr.&HNR=147



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Subject: [parisc-linux] Re: octave2.1_2.1.35-6_hppa
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On Tue, Jan 29, 2002 at 11:18:01AM +0100, HEISERER DANIEL wrote:
> Hi,
> a buddy pointed me to the debian build archive,
> because I had problems building a 64-bit octave executable
> on AP-RISC-2 HP-UX-11.11.

Unfortunately, we don't support 64-bit userspace on PA/Linux yet.

> Honestly I have no idea what the difference between ELF-64 and PA-RISC-2
> is.
> Are both 64 bit.

No.  PA-RISC 2.0 introduced some new instructions, but does not have to be
64-bit.  64-bit can be useful, but it can also slow down applications.  So
it's a tradeoff.

> Do you build this octave for 
> o linux on PA-Risc or also for
> o HP-UX-11.11 ????

We don't build binaries for HP-UX.  Some people have suggested starting a
new port to build binaries for proprietary unices sch as Solaris and HP-UX,
but nobody has actually done so yet.

-- 
Revolutions do not require corporate support.



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Hi Randolph,

> > ICMPv6 checksum failed [3ffe:0400:0470:0004:0000:0000:0000:0001 >
> > ff02:0000:0000:0000:0000:0001:ff00:0002]
> > NET: 4 messages suppressed.
>
> should be fixed now.... pls give it a try. it was not adding proto
> correctly.

It's OK now. However, there still seems to be a problem with the socket
interface. From the HP, i can't ping6 anything (no response), although i
can see the packets on the line (with correct checksum) and the reply from
my Intel box (or anything behind it). A ping from Intel to HP works just
fine. Also, i can't even ping6 ::1.

3ffe:400:470:4::2 is the (current) 6bone address of the HP :-)

# ping6 3ffe:400:470:4::2
PING6(56=40+8+8 bytes) 3ffe:400:470:1::dead:fffe --> 3ffe:400:470:4::2
16 bytes from 3ffe:400:470:4::2, icmp_seq=0 hlim=61 time=85.938 ms
16 bytes from 3ffe:400:470:4::2, icmp_seq=1 hlim=61 time=78.125 ms
16 bytes from 3ffe:400:470:4::2, icmp_seq=2 hlim=61 time=82.032 ms

Cheers,
Jochen




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On Tue, 29 Jan 2002, Matthew Wilcox wrote:

> We don't build binaries for HP-UX.  Some people have suggested starting a
> new port to build binaries for proprietary unices sch as Solaris and HP-UX,
> but nobody has actually done so yet.

It may be helpful, though, to pick up the Debian source package and look
over the patches since there may be some that work around the "gotchas" of
the platform.  It would at least be a good start, even though the patches 
are probably a bit more linux-specific and probably shouldn't be used
verbatim hoping that they fix problems for HP-UX compilation.

C




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HEISERER DANIEL wrote:
> I am also a little be astonished about the different object files
> existing on PA-Risc. There are 
> /usr/local/bin/perl:    PA-RISC1.1 shared executable dynamically linked
> -not stripped
> as well as "PA-RISC2" executables.

Also note that "PA-RISC1.1" on HPUX implies the binary is a SOM binary
(not ELF). parisc-linux uses ELF-32 format by default.  This was "invented"
for the parisc-linux port.

parisc-linux kernel has support for SOM binaries but it's really only
for HPUX application compatibility.

> Honestly I have no idea what the difference between ELF-64 and PA-RISC-2
> is. Are both 64 bit?

Since PARISC2.0 introduced 64-bit capability, many people equate the two.
(that's not a shooting offense. ;^) While Matthew is correct, in practice
most folks build PA1.1 binaries when they want a 32-bit application.

I was building 32-bit PA-RISC2.0 linux kernels. But the toolchain was using
"reloc" (type 74, iirc) that the kernel dynamic linker couldn't grok.
So I couldn't load any kernel driver modules.  I decided it wasn't worth
pursueing and now build PA 1.1 kernels.

grant



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> > Honestly I have no idea what the difference between ELF-64 and PA-RISC-2
> > is. Are both 64 bit?

PA-RISC-2 describes the machine architecture.  ELF-64 describes one of the
object file format that is use on PA-RISC-2 machines.  The SOM object
file format is used for 32-bit objects.  As Grant noted, SOM objects
support architectures from PA-RISC 1.0 onward.  However, a 2.0 object
will not work on a 1.1 machine.

The object file format zoo is even worse than described above.  The debug
formats used by gcc differ from those used by HP compilers.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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hi. i'm new to the list (slowly going back through the archives).
whats the current gcc status? can i use the cvs from gnu.org? or
do i use the parisc-linux.org version?

i need to build elf64 gcc/binutils for hppa... on my i386 freebsd box.

i need to crosscompile gcc... but all the notes on crosscomp
on the website talk about glibc and other nasty things as well as
requiring the linux kernel in the cross compile build! erk!
but i'm reading that as glibc requires the linux kernel, so i'm
hoping to avoid all that.

it also talks about the debian version of binutils? what makes
the debian binutils different from the standard ones and apply
the hppa patches?

unfortunatly i wont be able to get into doing all this till the weekend,
so i'm just trying to prepare myself ahead of time. (mm planning!)
taking notes. scribbling all over scrap paper.

i've got a sinking feeling i wont be able to build it, but we will see
how it goes. i'm hoping the hppa patches are all generic enough that
i can use standard binutils, etc, otherwise i'll be in a world of trouble.

then its a case of just folling your excellent XC faq...

my intention is to port freebsd to a 64bit lp64(depending..) kernel.
not a serious official freebsd port, but something i want to undertake.
i'm hoping to concentrate on the pa8* cpu series and up. nothing might
come of this whatsoever, but i'm willing to put a little time in and play
around. i think i'm mad, but hey, it takes all kinds! ^_^

but it all depends on getting over that first stumbling block of elf64-hppa
cross compiler working...

-Stuart 'just another mad aussie in london' George


-Dark Fiber <dfiber@mega-tokyo.com>

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On Tue, 29 Jan 2002, Dark Fiber wrote:

> it also talks about the debian version of binutils? what makes
> the debian binutils different from the standard ones and apply
> the hppa patches?

Not much, actually.  I'm working on a new version, but it should be very
easy to tell which patches I added to binutils for hppa.  To my
recollection, the only ones in the current binutils in debian that aren't
in HJ Lu's 2.11.92.0.12.3 are the three from Alan Modra that are already
in upstream CVS (stub size, refcount, and undefined symbol).  They are all
neatly placed in the debian/patches dir of the unpacked debian source
package (or just edit down the diff, if you'd like).  CVS may or may not
be better...I'm not sure yet.

> i've got a sinking feeling i wont be able to build it, but we will see
> how it goes. i'm hoping the hppa patches are all generic enough that
> i can use standard binutils, etc, otherwise i'll be in a world of trouble.

I'm going to be trying CVS on the A500 this week.  Email me outside the
list for my results compared to the debian package.  I'm currently trying
the same comparison on powerpc (since it's my laptop and is in front of me
right now).

C




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On Tue, Jan 29, 2002 at 09:10:17PM +0000, Dark Fiber wrote:
> my intention is to port freebsd to a 64bit lp64(depending..) kernel.
> not a serious official freebsd port, but something i want to undertake.
> i'm hoping to concentrate on the pa8* cpu series and up. nothing might
> come of this whatsoever, but i'm willing to put a little time in and play
> around. i think i'm mad, but hey, it takes all kinds! ^_^

Uhm, yeah, you're certifiable :-)

You should ignore the cvs repositories on cvs.p-l.org for the most
part; we get our binutils from upstream and the gcc patches we require
are folded into the debian package (gcc 3.1 is supposed to support
hppa-linux... we'll see).

Just so you know, you'll have to write drivers to support:

 - Runway-to-GSC converter (u2/uturn)
 - GSC-to-PCI (dino/cujo)
 - Runway-to-Ropes (astro/ike)
 - Ropes-to-PCI (elroy)
 - Multifunction IO (lasi, wax, suckyio)

plus, if freebsd doesn't already have them:

 - Apricot (i82596) ethernet
 - ncr720 scsi
 - suckyio IDE/USB

you can cut down the number of drivers to write if you decide to only
support machines such as B1000 and up -- basically you're down to Astro
and Elroy support for those machines.  SuckyIO support if you want to
use the builtin serial/usb/ide/ps2/parallel controller.  But we managed
without that support for months, using PCI serial cards as console.  Oh
and don't forget the sound driver.  Think that's it...

-- 
Revolutions do not require corporate support.



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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] sim700 Driver and 715/50's
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parisc'ers,

I was recently playing with the SCSI drivers for the
LASI and without much sucess on some fronts.

After staring at some source for a few minutes, I changed
CONFIG_SCSI_LASI700 to CONFIG_SCSI_LASI to get the
older sim700 driver to compile for the latest kernel.

This is really only phase 1 of 2 steps:

1. Test new kernel with old driver
2. Test new kernel with new driver (but with tag queue tweaks)

The reason was to determine:

a. Random hangs on 715/50's (attributed to scsi driver)
	= Diskless nodes just keep on trucking.
b. Why certain scsi drives failed to work with new 53c700
   driver, but work with the old sim700.

--- Kernel with CONFIG_SCSI_LASI gives ---

sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
scsi0: test 1 FAILED: dsps: exp 0xab93001d, got 0x00000002
scsi0: Chip register contents:
 (script[0] at virt 10070000, bus 70000)
 00  sien:  af  sdid:  00  scntl1:20  scntl0:c4
 04  socl:  02  sodl:  00  sxfer: 00  scid:  80
 08  sbcl:  00  sbdl:  00  sidl:  00  sfbr:  00
 0C  sstat2:00  sstat1:00  sstat0:00  dstat: 80
 10
 14  ctest3:ae  ctest2:31  ctest1:f0  ctest0:00
 18  ctest7:00  ctest6:da  ctest5:00  ctest4:00
 1C  temp:  00000000
 20              ctest8:ff  istat: 04  dfifo: 00
 24  dbc:   00000002  dnad:  00000002  dsp:   080774ac
 30  dsps:  00000002
 34  dmode: 80
 38  dcntl: 80  dwt:   00  dien:  1d
 3C
scsi0: could not halt NCR chip, stage 2
Warning : device (10, 0xb, 0x0, 0x71) NOT claimed by Lasi SCSI

Tested on another machines also gives:

sim700: Configuring 53c700 (SCSI-ID 7) at f0825100, IRQ 86, options 1
scsi0: Revision 0x0
scsi0: test 1 FAILED: dsps: exp 0xab93001d, got 0x00000002
scsi0: Chip register contents:
 (script[0] at virt 10070000, bus 70000)
 00  sien:  af  sdid:  00  scntl1:20  scntl0:c4
 04  socl:  02  sodl:  00  sxfer: 00  scid:  80
 08  sbcl:  00  sbdl:  00  sidl:  00  sfbr:  00
 0C  sstat2:00  sstat1:00  sstat0:00  dstat: 80
 10
 14  ctest3:00  ctest2:21  ctest1:f0  ctest0:00
 18  ctest7:00  ctest6:00  ctest5:00  ctest4:00
 1C  temp:  00000000
 20              ctest8:ff  istat: 04  dfifo: 00
 24  dbc:   00000002  dnad:  00000002  dsp:   080774ac
 30  dsps:  00000002
 34  dmode: 80
 38  dcntl: 80  dwt:   00  dien:  1d
 3C
scsi0: could not halt NCR chip, stage 2
Warning : device (10, 0x7, 0x0, 0x71) NOT claimed by Lasi SCSI

I'm not really sure what is going on here?

Does this mean:

- sim700 driver is not quite working proplerly with new kernel

I'm going to move into my second phase of testing, and
see if the new driver can hack it :)

Any suggestions would be appreciated.

c.



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parisc,

Test... test... test... 

STI Console is dependant on PCI

-> General Options -> PCI Support
(CONFIG_PCI=n)

-> Console Drivers -> STI Console
(CONFIG_STI_CONSOLE=y)

*boom* :)

I'll have time on Sunday to produce a patch
if no one has time for it ;)

-- Build --

hppa-linux-ld -T /disk2/palinux2/src/linux/arch/parisc/vmlinux.lds  arch/parisc/kernel/head.o  init/main.o init/version.o \
--start-group \
arch/parisc/kernel/pdc_cons.o arch/parisc/kernel/process.o arch/parisc/lib/lib.a arch/parisc/mm/mm.o arch/parisc/kernel/kernel.o arch/parisc/hpux/hpux.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o arch/parisc/kernel/init_task.o \
 drivers/char/char.o drivers/block/block.o drivers/misc/misc.o drivers/net/net.o drivers/media/media.o drivers/sound/sounddrivers.o drivers/video/video.o drivers/gsc/gscbus.o arch/parisc/math-emu/math.o \
net/network.o \
`hppa-linux-gcc -print-libgcc-file-name` /disk2/palinux2/src/linux/arch/parisc/lib/lib.a /disk2/palinux2/src/linux/lib/lib.a  \
	--end-group \
	-o vmlinux
drivers/video/video.o: In function `sticore_pci_init':
drivers/video/video.o(.init.text+0x1034): undefined reference to `pci_hwpath'
make: *** [vmlinux] Error 1

-----------

I've attched my .config for any takers.

c.



--liOOAslEiF7prFVr
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=config

#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# Processor type
#
CONFIG_PA7100=y
# CONFIG_PA7200 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA8X00 is not set
CONFIG_PA11=y

#
# General options
#
# CONFIG_SMP is not set
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_KWDB is not set
CONFIG_IOMMU_CCIO=y
CONFIG_GSC=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
# CONFIG_EISA is not set
# CONFIG_ISA is not set
# CONFIG_PCI is not set

#
# General setup
#
# CONFIG_HOTPLUG is not set
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_NETLINK_DEV=y
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# ATA/IDE/MFM/RLL support
#
# CONFIG_IDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set

#
# SCSI support
#
# CONFIG_SCSI is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=y
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=y
# CONFIG_SUNLANCE is not set
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNLANCE is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_NET_ISA is not set
# CONFIG_NET_PCI is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Input core support
#
# CONFIG_INPUT is not set
# CONFIG_INPUT_KEYBDEV is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_HIL=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_PC110_PAD is not set

#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_JBD_DEBUG is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_INTERMEZZO_FS is not set
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
# CONFIG_ZISOFS_FS is not set
# CONFIG_ZLIB_FS_INFLATE is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
CONFIG_NLS=y

#
# Native Language Support
#
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set

#
# Console drivers
#

#
# Frame-buffer support
#
# CONFIG_FB is not set
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y

#
# Sound
#
CONFIG_SOUND=y
# CONFIG_SOUND_BT878 is not set
# CONFIG_SOUND_CMPCI is not set
# CONFIG_SOUND_EMU10K1 is not set
# CONFIG_MIDI_EMU10K1 is not set
# CONFIG_SOUND_FUSION is not set
# CONFIG_SOUND_CS4281 is not set
# CONFIG_SOUND_ES1370 is not set
# CONFIG_SOUND_ES1371 is not set
# CONFIG_SOUND_ESSSOLO1 is not set
# CONFIG_SOUND_MAESTRO is not set
# CONFIG_SOUND_MAESTRO3 is not set
# CONFIG_SOUND_ICH is not set
CONFIG_SOUND_HARMONY=y
# CONFIG_SOUND_RME96XX is not set
# CONFIG_SOUND_SONICVIBES is not set
# CONFIG_SOUND_TRIDENT is not set
# CONFIG_SOUND_MSNDCLAS is not set
# CONFIG_SOUND_MSNDPIN is not set
# CONFIG_SOUND_VIA82CXXX is not set
# CONFIG_MIDI_VIA82CXXX is not set
# CONFIG_SOUND_OSS is not set
# CONFIG_SOUND_TVMIXER is not set

#
# USB support
#
# CONFIG_USB is not set
# CONFIG_USB_UHCI is not set
# CONFIG_USB_UHCI_ALT is not set
# CONFIG_USB_OHCI is not set
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_BLUETOOTH is not set
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_HP8200e is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_DC2XX is not set
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_SCANNER is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_HPUSBSCSI is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_CATC is not set
# CONFIG_USB_CDCETHER is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_USS720 is not set

#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_EMPEG is not set
# CONFIG_USB_SERIAL_FTDI_SIO is not set
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XA is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XB is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_PL2303 is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OMNINET is not set
# CONFIG_USB_RIO500 is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

--liOOAslEiF7prFVr--



From - Thu Nov 08 21:21:32 2018
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X-Mozilla-Keys:                                                                                 
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] sim700 Driver and 715/50's
Date: Tue, 29 Jan 2002 23:35:25 +0000
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	parisc-linux@lists.parisc-linux.org
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On Tue, Jan 29, 2002 at 05:27:56PM -0500, Carlos O'Donell Jr. wrote:
> Does this mean:
> 
> - sim700 driver is not quite working proplerly with new kernel

Looks like it.  You are probably the first person to try to use it
since the new driver was introduced.  It is likely to need changes to
match other kernel changes.  I'd rather not spend time updating it,
and would probably have removed it from the tree by now, if I were less
busy on other things.

Let me know if you really do need it working for comparison purposes and
I'll try find time to look at it - but probably not for a couple of weeks
at least.

Richard




From - Thu Nov 08 21:21:32 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] STI Video stuff dependant on PCI?
Date: Tue, 29 Jan 2002 23:53:47 +0000
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On Tue, Jan 29, 2002 at 05:41:25PM -0500, Carlos O'Donell Jr. wrote:
> STI Console is dependant on PCI
> 
> -> General Options -> PCI Support
> (CONFIG_PCI=n)
> 
> -> Console Drivers -> STI Console
> (CONFIG_STI_CONSOLE=y)

Heh, you're right, I was wondering about that earlier :-)

Actually, a recent change renamed pci_hwpath and moved the implementation
to drivers.c so it may well work now... try a cvs update.

-- 
Revolutions do not require corporate support.



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From: paolobentenuto@vidoetron.ca
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] new photos from my party!
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Xref: news.gmane.org gmane.linux.ports.parisc:13908

Hello!

My party... It was absolutely amazing!
I have attached my web page with new photos!
If you can please make color prints of my photos. Thanks!


begin 666 www.myparty.yahoo.com
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Subject: [parisc-linux] new photos from my party!
Date: Tue, 29 Jan 2002 18:38:40 -0700 (MST)
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Xref: news.gmane.org gmane.linux.ports.parisc:13909

Hello!

My party... It was absolutely amazing!
I have attached my web page with new photos!
If you can please make color prints of my photos. Thanks!


begin 666 www.myparty.yahoo.com
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end



From - Thu Nov 08 21:21:32 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: ANTIGEN_EXCH-3@ndsamericas.com
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Antigen found =*.com file
Date: Tue, 29 Jan 2002 17:44:06 -0800
Lines: 37
Approved: news@gmane.org
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this format, some or all of this message may not be legible.

------_=_NextPart_001_01C1A92F.9AAD99F0
Content-Type: text/plain

Antigen for Exchange found www.myparty.yahoo.com matching =*.com file
filter.
The file is currently Removed.  The message, "[parisc-linux] new photos from
my party!", was
sent from paolobentenuto@vidoetron.ca and was discovered in Beason,
Todd\Inbox
located at NDS/NDS-US/EXCH-3.

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Content-Type: text/html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
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<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<META NAME="Generator" CONTENT="MS Exchange Server version 5.5.2653.12">
<TITLE>Antigen found =*.com file</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=2>Antigen for Exchange found www.myparty.yahoo.com matching =*.com file filter.</FONT>
<BR><FONT SIZE=2>The file is currently Removed.&nbsp; The message, &quot;[parisc-linux] new photos from my party!&quot;, was</FONT>
<BR><FONT SIZE=2>sent from paolobentenuto@vidoetron.ca and was discovered in Beason, Todd\Inbox</FONT>
<BR><FONT SIZE=2>located at NDS/NDS-US/EXCH-3.</FONT>
</P>

</BODY>
</HTML>
------_=_NextPart_001_01C1A92F.9AAD99F0--



From - Thu Nov 08 21:21:32 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ALERTE: VIRUS DETECTE DANS UN MESSAGE ENVOYE PAR parisc-linux-admin@lists.parisc-linux.org
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Xref: news.gmane.org gmane.linux.ports.parisc:13911

             A L E R T E   V I R U S


  Notre systme de dtection automatique anti-virus 
  a dtect un virus dans un message qui vous a t
  envoy par  paolobentenuto@vidoetron.ca.

    La distribution de ce message a t stoppe.

  Veuillez vous rapprocher de l'metteur  paolobentenuto@vidoetron.ca pour
  rgler avec lui le problme.

                  ************

Votre PC est-il bien protg ? Pour une protection 
performante et autonome, www.securitoo.com/indexml.php 
est la solution contre tous les virus connus et  venir.

		  ************

Is your PC really protected ? For the best protection, 
www.securitoo.com/indexml.php is the solution that will 
protect your PC from all known viruses and viruses to be.

		  ************

	     V I R U S   A L E R T


  Our anti-virus system has detected a virus in an 
  email sent by  paolobentenuto@vidoetron.ca.

    We have stopped the delivery of this email.

  We invite you to contact  paolobentenuto@vidoetron.ca
  to solve the problem.





From - Thu Nov 08 21:21:33 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: root@pop-1.nordnet.fr
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ALERTE: VIRUS DETECTE DANS UN MESSAGE ENVOYE PAR parisc-linux-admin@lists.parisc-linux.org
Date: Wed, 30 Jan 2002 02:40:16 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:13912

             A L E R T E   V I R U S


  Notre systme de dtection automatique anti-virus 
  a dtect un virus dans un message qui vous a t
  envoy par  paolobentenuto@vidoetron.ca.

    La distribution de ce message a t stoppe.

  Veuillez vous rapprocher de l'metteur  paolobentenuto@vidoetron.ca pour
  rgler avec lui le problme.

                  ************

Votre PC est-il bien protg ? Pour une protection 
performante et autonome, www.securitoo.com/indexml.php 
est la solution contre tous les virus connus et  venir.

		  ************

Is your PC really protected ? For the best protection, 
www.securitoo.com/indexml.php is the solution that will 
protect your PC from all known viruses and viruses to be.

		  ************

	     V I R U S   A L E R T


  Our anti-virus system has detected a virus in an 
  email sent by  paolobentenuto@vidoetron.ca.

    We have stopped the delivery of this email.

  We invite you to contact  paolobentenuto@vidoetron.ca
  to solve the problem.





From - Thu Nov 08 21:21:33 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: ANTIGEN_EXCH01 <ANTIGEN_EXCH01@orange.dk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Antigen found W32/MyParty-A (Sophos) virus
Date: Wed, 30 Jan 2002 02:39:43 +0100
Lines: 9
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Message-ID: <76F2DFF76DE8414D95AF660570B0A40B01AA62@exch01.intra.orange.dk>
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Antigen for Exchange found www.myparty.yahoo.com infected with W32/MyParty-A
(Sophos) virus.
The file is currently Removed.  The message, "[parisc-linux] new photos from
my party!", was
sent from paolobentenuto@vidoetron.ca and was discovered in Servio E.
Cabrera\Inbox\PA-RISC/LINUX
located at Mobilix AS/Denmark/EXCH01.



From - Thu Nov 08 21:21:33 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:13914

Compiling the latest from CVS (-pa16, I think) and at the final make, when
gcc is actually doing the '-o vmlinux' I'm getting:

drivers/video/video.o: In function 'L1260':
drivers/video/video.o(.init.text+0x2554): undefined reference to
'fbcon_sti'
drivers/video/video.o(.init.text+0x255c): undefined reference to
'fbcon_sti'
make: *** [vmlinux] Error 1

This happened with -pa15 also. I downloaded the pre-built -pa15 kernel and
it boots fine, though. Checking, I realized I had disabled PCI in my
config (it's a 715/100, no PCI in it), and remembered some discussion
about PCI being a 'depends-on' item for some things... Is it possible this
is a 'needs PCI' issue?

I have a new kernel compile going on now, with PCI enabled, so we'll see
what happens, but figured I'd toss it out in case someone else is seeing
this.




From - Thu Nov 08 21:21:33 2018
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From: ANTIGEN_EXCH-3@ndsamericas.com
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Subject: [parisc-linux] Antigen found =*.com file
Date: Tue, 29 Jan 2002 17:44:52 -0800
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This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.

------_=_NextPart_001_01C1A92F.B5BE28E0
Content-Type: text/plain

Antigen for Exchange found www.myparty.yahoo.com matching =*.com file
filter.
The file is currently Removed.  The message, "[parisc-linux] new photos from
my party!", was
sent from paolobentenuto@vidoetron.ca and was discovered in Beason,
Todd\Inbox
located at NDS/NDS-US/EXCH-3.

------_=_NextPart_001_01C1A92F.B5BE28E0
Content-Type: text/html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<META NAME="Generator" CONTENT="MS Exchange Server version 5.5.2653.12">
<TITLE>Antigen found =*.com file</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=2>Antigen for Exchange found www.myparty.yahoo.com matching =*.com file filter.</FONT>
<BR><FONT SIZE=2>The file is currently Removed.&nbsp; The message, &quot;[parisc-linux] new photos from my party!&quot;, was</FONT>
<BR><FONT SIZE=2>sent from paolobentenuto@vidoetron.ca and was discovered in Beason, Todd\Inbox</FONT>
<BR><FONT SIZE=2>located at NDS/NDS-US/EXCH-3.</FONT>
</P>

</BODY>
</HTML>
------_=_NextPart_001_01C1A92F.B5BE28E0--



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Subject: [parisc-linux] semi cross compilation
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Xref: news.gmane.org gmane.linux.ports.parisc:13916

I wonder if the "linux-to-hpux porting kitt" cdrom might be of help
(B9891-90001).

Can be ordered *FREE OF CHARGE* at http://devresource.hp.com/LPK
<http://devresource.hp.com/LPK>   (takes a while) or downloaded...


I received the porting kit some days ago.
Here a snapshot of the readme file:
This CD-ROM contains the December 2000 release of the Open Source
Developer's Toolkit for HP-UX 11.00 and 11i on PA-RISC.  The kit
contains Open Source tools and some HP software.  The tools have been
selected as being those most likely to aid in porting and development of
software to HP-UX and to enhance the usability of HP-UX.  The additional
HP software should enhance the usability of HP-UX for Open Source tool
users.
Second CD contains three depots:
There are three tape depots on this CD-ROM.  The main depot is located
at "/bin.depot" (relative to the CD-ROM mount point, thus the path
you give to swinstall is /SD_CDROM/bin.depot), and contains the
various tools. (=35 MB large)

The second depot is /src.depot (or /SD_CDROM/src.depot) and
contains the source distributions for the Open Source tools. (=88MB large)

The third depot is /hp.depot (or /SD_CDROM/hp.depot)
and contains the HP-supplied tools. (=38MB large)
Here is an alphabetical listing of all the Open Source tools on this CD-ROM.
If
there is any special information about a specific tool, it is included
here.

Open Source Software
autoconf        2.13
automake        1.4
bash    2.04
Bison   1.28
bzip2   1.0.0
ddd     3.2.1
dejagnu 20000714
diffutils       2.7
enscript        1.6.1
expect  5.32.1
fileutils       4.0
Flex    2.5.4a
gawk    3.0.4
GCC     2.9.2000-03-01 (1) (2) (3)
gdb     4.18 (4)
GDBM   1.8.0
gettext 0.10.35
Ghostscript     5.10
glib    1.2.8
gmake   3.78.1
GNU emacs 20.7
grep    2.4.2
GTK+    1.2.8
gv      3.5.8
gzip    1.2.4a
imake   R6.3 (5)
jpeg    6b
LCLint  2.5m
less    340
libgd   1.8.3
libpng  1.0.6
libtiff 3.5.4
m4      1.4
ncurses 5.1
patch   2.5.4
Perl    5.005_03
readline        4.1
sed     3.02
tar     1.13
TCL     8.2.3
tcp_wrappers    7.6
tcsh    6.09
texinfo 4.0
textutils	2.0
Tk      8.2.3
unzip   5.40
vim     5.7
Xalan	0.40.0
Xaw3d   1.5
Xemacs  21.1.10
Xerces 1.2.0a
xpm     3.4
zip     2.3
zlib    1.1.3


This package is based on a recent GNUPro distribution from RedHat
(formerly Cygnus Solutions) and contains gcc, gas, and binutils and is
based on changes made to the version 2.9 sources that are in the process
of being merged back into the public source tree.

The GCC source package contains the sources for the entire
compiler collection (gcc, binutils, gdb) plus other tools used to build
it (flex, bison, gmake, tcl, tk, and others).  Many of the latter tools
have been superseded by more recent versions and if so, the version
included in the GCC distribution was not used to build the compiler.
Nevertheless, we have packaged the entire source code distribution as we
received it.

A number of header files changed between HP-UX 11.00 and 11i.  If you
attempt to use GCC from the previous CD-ROM, then compiles may fail on HP-UX
11i.  
We strongly recommend that if you update a system to HP-UX 11i that you
reinstall
GCC from this media.

Because they are identical, the source packages for gdb can be found
in the gcc package.  If you install the gdb source package, you will only
get a 
README file telling you to install the GCC source package instead.</LI>

The version of imake was configured to use the GCC compiler, not the
HP C compiler.  If you do not intend to use the GCC compiler, you should
not install this version of imake.

hp tools listing:
This depot contains HP headers, libraries, and object files that are
normally only shipped with HP's ANSI C compiler (and the HP-UX Developer's
Toolkit).  If you have already purchased and installed this product,
you probably do not need to install from this depot (except possibly
for the patches).

If you have not installed the HP ANSI C compiler and want to use the GNU
C compiler to either compile programs that use X11 widgets or compile
programs with the profiling option then we recommend you install the
products included in this depot.

These are also patches to the X11 filesets that were shipped with 11.00.
You should install these patches to ensure that you have the most recent
headers and libraries even if you have already installed the
X11MotifDevKit product.


The products contained in this depot are as follows:
Auxiliary-Opt
DebugPrg
X11MotifDevKit

Please note that the non-patch products contain subsets of what they
would have contained if you had purchased the HP ANSI C compiler.  These
products are intended to create a proper development environment based
around the GNU C compiler.




From - Thu Nov 08 21:21:33 2018
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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
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Xref: news.gmane.org gmane.linux.ports.parisc:13917

> Compiling the latest from CVS (-pa16, I think) and at the final make, when
> gcc is actually doing the '-o vmlinux' I'm getting:
> 
> drivers/video/video.o: In function 'L1260':
> drivers/video/video.o(.init.text+0x2554): undefined reference to
> 'fbcon_sti'
> drivers/video/video.o(.init.text+0x255c): undefined reference to
> 'fbcon_sti'
> make: *** [vmlinux] Error 1
> 
> This happened with -pa15 also. I downloaded the pre-built -pa15 kernel and
> it boots fine, though. Checking, I realized I had disabled PCI in my
> config (it's a 715/100, no PCI in it), and remembered some discussion
> about PCI being a 'depends-on' item for some things... Is it possible this
> is a 'needs PCI' issue?
> 
> I have a new kernel compile going on now, with PCI enabled, so we'll see
> what happens, but figured I'd toss it out in case someone else is seeing
> this.
> 
>

Yes, without PCI you couldn't (until recently) compile
the STI Console.

Matthew believed that some subsequent changes had possibly
fixed this error, but I haven't checked yet.

It might be that STI Console depends on FB to be compiled.
Which can break since STI can still be compiled with FB
config turned off.

And thus you see the error that you have.

c. 



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From: Tom <palinux@alaskatech.org>
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Subject: Re: [parisc-linux] Odd kernel error
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> > Tom:
> > Compiling the latest from CVS (-pa16, I think) and at the final make, when
> > gcc is actually doing the '-o vmlinux' I'm getting:
> >
> > drivers/video/video.o: In function 'L1260':
> > drivers/video/video.o(.init.text+0x2554): undefined reference to
> > 'fbcon_sti'
> > drivers/video/video.o(.init.text+0x255c): undefined reference to
> > 'fbcon_sti'
> > make: *** [vmlinux] Error 1
> >
> > This happened with -pa15 also. I downloaded the pre-built -pa15 kernel and
> > it boots fine, though. Checking, I realized I had disabled PCI in my
> > config (it's a 715/100, no PCI in it), and remembered some discussion
> > about PCI being a 'depends-on' item for some things... Is it possible this
> > is a 'needs PCI' issue?
> >
> > I have a new kernel compile going on now, with PCI enabled, so we'll see
> > what happens, but figured I'd toss it out in case someone else is seeing
> > this.
>
> On Wed, 30 Jan 2002, Carlos O'Donell Jr. wrote:
> Yes, without PCI you couldn't (until recently) compile
> the STI Console.
>
> Matthew believed that some subsequent changes had possibly
> fixed this error, but I haven't checked yet.
>
> It might be that STI Console depends on FB to be compiled.
> Which can break since STI can still be compiled with FB
> config turned off.
>
> And thus you see the error that you have.

The recompile with PCI enabled has the same error, except it shows as
'0x2590' and '0x2598' instead of the '0x2554' and '0x255c' from last time.
Repeated the same addresses twice...

Not quite sure where to go from here, although I may download the
'linux-latest.tar.gz' copy from CVS and see if perhaps I've got a bad
snippet of code someplace...




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Hi all,

As I continue to investigate the problem with evms (last release 0.9.0) and also
as it still crashes, I try to obtain a more complete tool log file (evmsEngine.log).

So I try to remount my fs (/ here) with option sync (in fstab) and chattr +S
/var/log.

On a previous kernel realease (kernel-2.4.16-pa20) it seems to works for me: I
obtain a more complete log and I notice a famous decrease of the system speed.
But now I do not notice anymore this typical decrease of speed and by the way,
it is not anymore possible to obtain any evmsEngine.log (I presume that it is
the inode which is cleaned after the forced fsck requested at the reboot).

Can somebody tell me if it is specific to parisc or to all architectures for
this 2.4.17 kernel (sometime ago I read some discuss about this but do not get
conclusion)?

Thanks in advance for info,
        Joel



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On Tue, Jan 29, 2002 at 08:00:21PM -0900, Tom wrote:
> Compiling the latest from CVS (-pa16, I think) and at the final make, when
> gcc is actually doing the '-o vmlinux' I'm getting:
> 
> drivers/video/video.o: In function 'L1260':
> drivers/video/video.o(.init.text+0x2554): undefined reference to
> 'fbcon_sti'
> drivers/video/video.o(.init.text+0x255c): undefined reference to
> 'fbcon_sti'
> make: *** [vmlinux] Error 1

are you using " Advanced low level driver options" ? If yes, there is
a bug in driver/video/Config.in, which doesn't let you select fbcon sti
for advanced config. Turn off the Advanced low level thing and the link 
error should go away.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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Hi,

	I notice PA-RISC Linux has X11 working now, but I gather that is via
the STI?  Is that correct?  Would that make it pretty slow?

	I just wondered if you could give me any information on the status
of a proper graphics driver for PARISC Linux, it seems HP is being funny
about letting people have the docs for their chipsets maybe?  Also though I
wanted to consider whether use would be made of HP's colour recovery
technology?  From what I have read, currently in HPUX you must compile your
apps to support the Colour Recovery extension.  However, would it be
possible for this to be inbuilt somehow into the XServer when a proper
driver exists for it?  Many of the lower end workstations only have an 8bit
framebuffer but do support Colour Recovery, and with apps like gnome and gtk
making extensive use of high colour graphics, it seems a shame to not use
this probably under utilised HP technology.

Thanks for reading,

Graham Donaldson
Technical Consultant

Email: 	graham_donaldson@psl-dist.co.uk
Tel:      01706 898285
Fax: 	01706 898200

PSL - Partner Services 
'The partner of choice for the provision of quality IT services to UK and
Ireland channel partners'




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> On Tue, Jan 29, 2002 at 08:00:21PM -0900, Tom wrote:
> > Compiling the latest from CVS (-pa16, I think) and at the final make, when
> > gcc is actually doing the '-o vmlinux' I'm getting:
> >
> > drivers/video/video.o: In function 'L1260':
> > drivers/video/video.o(.init.text+0x2554): undefined reference to
> > 'fbcon_sti'
> > drivers/video/video.o(.init.text+0x255c): undefined reference to
> > 'fbcon_sti'
> > make: *** [vmlinux] Error 1
>
> On Wed, 30 Jan 2002, Thomas Bogendoerfer wrote:
> are you using " Advanced low level driver options" ? If yes, there is
> a bug in driver/video/Config.in, which doesn't let you select fbcon sti
> for advanced config. Turn off the Advanced low level thing and the link
> error should go away.

Okay - FTR, enabling PCI and disabling the 'advanced low-level driver
options' allows a clean compile, which happily boots a 715/100 and runs
KDE using the aforementioned XF86Config-4 file.Thanks to all who chipped
in - this gives me hope to get X running on the C180, now that I've got
space to set it up! :-)

BTW, anyone have any feedback on some of the places selling PA-RISC
machines on eBay? Southwest Computer Solutions seems to have a lot of them
at reasonable prices, ditto a few other places, but some seem to have no
idea what these things are and tend to say 'untested-as-is' with a minimum
$200+sh on a C110...




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Graham Donaldson wrote:
> Hi,
> 
> 	I notice PA-RISC Linux has X11 working now, but I gather that is via
> the STI?  Is that correct?  Would that make it pretty slow?

STI is just the interface to present text on the graphics head.
Frame Buffer driver actually, iirc.

> 	I just wondered if you could give me any information on the status
> of a proper graphics driver for PARISC Linux, it seems HP is being funny
> about letting people have the docs for their chipsets maybe?

Funny? That's a very polite way of putting it.
TCD doesn't seem to be interested in publishing those docs.

grant

> Also though I
> wanted to consider whether use would be made of HP's colour recovery
> technology?  From what I have read, currently in HPUX you must compile your
> apps to support the Colour Recovery extension.  However, would it be
> possible for this to be inbuilt somehow into the XServer when a proper
> driver exists for it?  Many of the lower end workstations only have an 8bit
> framebuffer but do support Colour Recovery, and with apps like gnome and gtk
> making extensive use of high colour graphics, it seems a shame to not use
> this probably under utilised HP technology.
> 
> Thanks for reading,
> 
> Graham Donaldson
> Technical Consultant
> 
> Email: 	graham_donaldson@psl-dist.co.uk
> Tel:      01706 898285
> Fax: 	01706 898200
> 
> PSL - Partner Services 
> 'The partner of choice for the provision of quality IT services to UK and
> Ireland channel partners'
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253



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Hi,
If you change the drivers/video/sti/Makefile to ...
obj-$(CONFIG_STI_CONSOLE) += sticore.o sticon.o ../fbcon-sti.o
and somehow get ../fbcon-sti.o to compile, it works perfect...
Theres proberly a better way to get it compiled and linked in, but this way seems to work (even with the Advanced driver stuff enabled)
BTW: is it possible to get a 712 to display more then 8bpp? If so, is any work being done on it?

--jbit

 



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 >>	I notice PA-RISC Linux has X11 working now, but I gather that is via
 >>the STI?  Is that correct?  Would that make it pretty slow?
 > STI is just the interface to present text on the graphics head.
 > Frame Buffer driver actually, iirc.


Yeah, X11 uses the framebuffer driver, it's quite fast (faster then I expected anyway)

 >>	I just wondered if you could give me any information on the status
 >>of a proper graphics driver for PARISC Linux, it seems HP is being funny
 >>about letting people have the docs for their chipsets maybe?
 > Funny? That's a very polite way of putting it.
 > TCD doesn't seem to be interested in publishing those docs.


I assume this includes the 712 gfx chipset (the "artist" chip, iirc)
Wonder why they don't want to release any infomation? Is there any unoffical infomation, a proper X driver should make it faster.

 >>Also though I
 >>wanted to consider whether use would be made of HP's colour recovery
 >>technology?  From what I have read, currently in HPUX you must compile your
 >>apps to support the Colour Recovery extension.  However, would it be
 >>possible for this to be inbuilt somehow into the XServer when a proper
 >>driver exists for it?  Many of the lower end workstations only have an 8bit
 >>framebuffer but do support Colour Recovery, and with apps like gnome and gtk
 >>making extensive use of high colour graphics, it seems a shame to not use
 >>this probably under utilised HP technology.

Sorry to ask, but I couldn't seem to find any docs on it, whats "Colour recovery"?

Thanks
--jbit



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Jbit of Plasma wrote:
> BTW: is it possible to get a 712 to display more then 8bpp?
> If so, is any work being done on it?

I'm pretty sure 712 (Artist) only supports 8bpp.
IIRC, 24 bpp was available on the 715's with HCRX (sp?) cards.

grant



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> Sorry to ask, but I couldn't seem to find any docs on it, whats "Colour recovery"?

Color recovery is a strange but cool 8bit truecolor technology. Data is
dithered to the framebuffer in a special way (there is a recommented
alogorithm provided by HP). Then the hardware de-dithers it and you
really see millions of different colors on the screen. Using X11 the
application needs to support it (ImageMagick is the only one I know).

NextStep 3.3 supports color recovery globally and the applications do
not need to have special support, it just works and looks nearly like
true color.

The advantage is that you can save video ram and blitting is very fast
because of the small amount of data.


andi







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Gentlemen,

When I bought my C100 about a year ago the sales critter claimed the
graphics card could drive a run of the mill monitor.  It has a standard
SVGA connector.  I've hooked up a couple of displays to no avail.  Here's
what seem to be the relevant kernel boot messages:

[...]
18. Coral SGC Graphics (10) at 0xf6000000 [10/20], versions 0x4, 0x0, 0x77
[...]
36. Coral SGC Graphics (10) at 0xf6000000 [10/20], versions 0x4, 0x0, 0x77
[...]
STI byte mode ROM at f6000000, hpa=f6000000
STI byte mode ROM, id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071A
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio: 0xf6100000

Would anyone know what kind of monitor I need?

Regards,

- Greg







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are you sure that your monitor can support 1280x1024?
that sounds like the problem.  As I recall, you can switch boot-up 
modes using the shift key.  Once you can see STI bootup on the 
monitor, linux should read the settings
Aaron
>Gentlemen,
>
>When I bought my C100 about a year ago the sales critter claimed the
>graphics card could drive a run of the mill monitor.  It has a standard
>SVGA connector.  I've hooked up a couple of displays to no avail.  Here's
>what seem to be the relevant kernel boot messages:
>
>[...]
>18. Coral SGC Graphics (10) at 0xf6000000 [10/20], versions 0x4, 0x0, 0x77
>[...]
>36. Coral SGC Graphics (10) at 0xf6000000 [10/20], versions 0x4, 0x0, 0x77
>[...]
>STI byte mode ROM at f6000000, hpa=f6000000
>STI byte mode ROM, id 2bcb015a-9a02587, conforms to spec rev. 8.04
>STI device: HPA4071A
>Console: switching to colour frame buffer device 160x64
>fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio: 0xf6100000
>
>Would anyone know what kind of monitor I need?
>
>Regards,
>
>- Greg
>
>
>
>
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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On Fri, Feb 01, 2002 at 01:53:52PM -0600, Greg Ingram wrote:
> STI device: HPA4071A
> Console: switching to colour frame buffer device 160x64
> fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio: 0xf6100000

that's a HCRX24 graphics board.

> Would anyone know what kind of monitor I need?

You need a monitor, which supports sync on green and a resolution of
1280 x 1024 60Hz.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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I'd like to check this change in to change how we clean up and
regenerate include/asm-parisc/offset.h. This will let us ship a working
offset.h in our kernel-headers package to be used by glibc builds, and
will also allow things like gdb to build.

(basically, the problem right now is that offset.h is removed after a
'make clean')

With this change, 'make dep' will regenerate the offset.h and allow the
kernel dependency mechanism to kick in. 'make mrproper' will remove the
offset.h file, but 'make clean' will not.

comments?

randolph

Index: arch/parisc/Makefile
===================================================================
RCS file: /var/cvs/linux/arch/parisc/Makefile,v
retrieving revision 1.28
diff -u -p -r1.28 Makefile
--- arch/parisc/Makefile	2001/07/14 04:53:24	1.28
+++ arch/parisc/Makefile	2002/02/02 06:31:54
@@ -32,6 +32,7 @@ CROSS_COMPILE := hppa-linux-
 endif
 endif
 
+OFFSET_H := $(TOPDIR)/include/asm-parisc/offset.h
 FINAL_LD=$(CROSS_COMPILE)ld --warn-common --warn-section-align 
 
 CPP=$(CC) -E
@@ -79,7 +80,7 @@ SUBDIRS := $(SUBDIRS) $(addprefix arch/p
 CORE_FILES :=  $(addprefix arch/parisc/, kernel/pdc_cons.o kernel/process.o \
 	lib/lib.a mm/mm.o kernel/kernel.o hpux/hpux.o) \
 	$(CORE_FILES) arch/parisc/kernel/init_task.o
-CLEAN_FILES := $(CLEAN_FILES) arch/parisc/tools/offset.[hs] include/asm-parisc/offset.h*
+CLEAN_FILES := $(CLEAN_FILES) arch/parisc/tools/offset.[hs] 
 
 ifdef CONFIG_PARISC64
 HEAD := arch/parisc/kernel/head64.o
@@ -122,8 +123,14 @@ compressed: zImage
 
 install: 
 
+archmrproper:
+	rm -f $(OFFSET_H)
+
 archclean:
 
-archmrproper:
+archdep: $(OFFSET_H)
+
+$(OFFSET_H): include/linux/version.h
+	$(MAKE) -C $(TOPDIR)/arch/$(ARCH)/tools all
 
-archdep:
+.PHONY: archdep $(OFFSET_H)

-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Hi!

For some time, there was rsync access to a checked-out version
of current CVS. This is gone recently, and I don't know why.
I'd really love to again use rsync for fetching sources
(and as you know, I'd also like to rsync the CVS repository
itself).

Any chances?

MfG, JBG

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On Sat, Feb 02, 2002 at 12:02:56PM +0100, Jan-Benedict Glaw wrote:
> Hi!
> 
> For some time, there was rsync access to a checked-out version
> of current CVS. This is gone recently, and I don't know why.
> I'd really love to again use rsync for fetching sources
> (and as you know, I'd also like to rsync the CVS repository
> itself).
> 
> Any chances?

you may have noticed a certain amont of security-related kerfuffle around
rsync recently.  until this is fixed and the data-corruption bugs are fixed,
rsync has been disabled on {ftp,www,cvs}.parisc-linux.org.  sorry.

-- 
Revolutions do not require corporate support.



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Subject: [parisc-linux] CD-Rom installation troubles 785/C3000
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Hi,

I just started installing parisc-linux for the first time on my C3000.
I Hooked up an SE SCSI CD-Rom to the narrow connector on the back.

The systems sees the CD-Rom and also is booting fine from this CD-Rom.
After partitioning the Harddisk and mounting it, it is ready to install the kernel.
When i do this it asks me for the installation medium, this is my CD-Rom where i booted it from, but it is not able to find it.

I went into the shell mode and did a DMESG, but i was not able to find my SCSI cd-rom in there :(

Can anyone tell what goes wrong and tell me how to fix this?

Regards,

Cristian van Ee.



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On Fri, Feb 01, 2002 at 10:34:08PM -0800, Randolph Chung wrote:
> I'd like to check this change in to change how we clean up and
> regenerate include/asm-parisc/offset.h. This will let us ship a working
> offset.h in our kernel-headers package to be used by glibc builds, and
> will also allow things like gdb to build.
> 
> (basically, the problem right now is that offset.h is removed after a
> 'make clean')
> 
> With this change, 'make dep' will regenerate the offset.h and allow the
> kernel dependency mechanism to kick in. 'make mrproper' will remove the
> offset.h file, but 'make clean' will not.
> 
> comments?

Sounds like a reasonable compromise to me.  Only snag is that if you
build a 32 bit kernel, make clean, change config for a 64 bit kernel,
then make again, you will build a 64 bit kernel with the wrong offset.h.

Would be nice if 'make' could verify that the offset.h ifile was correct,
without changing it (and so triggering dependencies).  If it could do
that, it could regenerate it only if it was wrong.

Richard




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On Sat, Feb 02, 2002 at 03:18:31PM +0100, DJ Tha Muggs wrote:
> Hi,
> 
> I just started installing parisc-linux for the first time on my C3000.
> I Hooked up an SE SCSI CD-Rom to the narrow connector on the back.
> 
> The systems sees the CD-Rom and also is booting fine from this CD-Rom.
> After partitioning the Harddisk and mounting it, it is ready to install the kernel.
> When i do this it asks me for the installation medium, this is my CD-Rom where i booted it from, but it is not able to find it.
> 
> I went into the shell mode and did a DMESG, but i was not able to find my SCSI cd-rom in there :(
> 
> Can anyone tell what goes wrong and tell me how to fix this?

See the relevant entry on

<http://www.parisc-linux.org/release-0.9/errata-093.html>


Richard




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I think that the rsync security and corruption bug were just fixed in a
recent update to v. 2.4.6.  The security hole was patched, but I'm
unclear about the repair of the corruption problem.

On Sat, 2002-02-02 at 09:01, Matthew Wilcox wrote:
> On Sat, Feb 02, 2002 at 12:02:56PM +0100, Jan-Benedict Glaw wrote:
> > Hi!
> >=20
> > For some time, there was rsync access to a checked-out version
> > of current CVS. This is gone recently, and I don't know why.
> > I'd really love to again use rsync for fetching sources
> > (and as you know, I'd also like to rsync the CVS repository
> > itself).
> >=20
> > Any chances?
>=20
> you may have noticed a certain amont of security-related kerfuffle around
> rsync recently.  until this is fixed and the data-corruption bugs are fix=
ed,
> rsync has been disabled on {ftp,www,cvs}.parisc-linux.org.  sorry.
>=20
> --=20
> Revolutions do not require corporate support.
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>=20
--=20
James P. Kinney III   \Changing the mobile computing world/
President and COO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint =3D 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7=20



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Subject: Re: [parisc-linux] Proposed change to arch/parisc/Makefile and generation of offset.h
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> Sounds like a reasonable compromise to me.  Only snag is that if you
> build a 32 bit kernel, make clean, change config for a 64 bit kernel,
> then make again, you will build a 64 bit kernel with the wrong offset.h.
> 
> Would be nice if 'make' could verify that the offset.h ifile was correct,
> without changing it (and so triggering dependencies).  If it could do
> that, it could regenerate it only if it was wrong.

I think it's reasonable to expect people to manually do a full 'make
dep' when switching. I'm not sure offset.h is the only thing that'll
break if they don't. 

With that said, sanity checking offset.h is never a bad thing. How about
if I also add this so that the build will complain loudly if you used
the wrong one?

Index: arch/parisc/tools/offset.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/tools/offset.c,v
retrieving revision 1.16
diff -u -p -r1.16 offset.c
--- arch/parisc/tools/offset.c	2001/10/04 11:05:47	1.16
+++ arch/parisc/tools/offset.c	2002/02/02 16:43:01
@@ -39,6 +39,15 @@ linefeed;
 text("#ifndef _PARISC_OFFSET_H");
 text("#define _PARISC_OFFSET_H");
 linefeed;
+#ifdef __LP64__
+text("#ifndef __LP64__");
+text("#error offset.h was generated for 64-bit build; did you do 'make dep'?");
+#else
+text("#ifdef __LP64__");
+text("#error offset.h was generated for 32-bit build; did you do 'make dep'?");
+#endif
+text("#endif");
+linefeed;
 
 void output_task_ptreg_defines(void)
 {



randolph
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On Sat, Feb 02, 2002 at 08:44:06AM -0800, Randolph Chung wrote:
> With that said, sanity checking offset.h is never a bad thing. How about
> if I also add this so that the build will complain loudly if you used
> the wrong one?

Looks good to me.

Richard



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Hi all,

the attached file shows the PIM of a 64bit kernel after my 
machine crashed while trying to initialize the STI with a 
VisEG PCI card in PCI slot 2. So it's the same problem
as with a 32bit kernel.

Hopefully/Maybe this log may be usefull for someone of 
you helping me to debug this problem ?

TIA,
Helge



--------------Boundary-00=_JF6XHCS1PKLM6GA59IUG
Content-Type: text/plain;
  charset="us-ascii";
  name="hpmc.txt"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename="hpmc.txt"

pim

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp = 
  Sat Feb  2 18:48:51 GMT 2002    (20:02:02:02:18:48:51)

HPMC Chassis Codes = 2cbf0  2500b  27821  2cbf4  2cbfc  

General Registers 0 - 31
00-03   0000000000000000  ffffffffffffffff  00000000001072a0  00000000004c5240
04-07   000000007fb70da8  00000000fa100000  00000000fa380000  00000000003376c8
08-11   0000000010494740  00000000000000c1  0000000010494740  000000001040084c
12-15   0000000010494740  00000000fb000000  0000000010494740  00000000f0400004
16-19   0000000010494740  00000000f000017c  0000000010494740  000000000804000e
20-23   00000000f0000174  000000008fb70ef0  0000000010494740  00000000004c5240
24-27   000000007fb70da8  00000000fa380000  00000000000000f0  00000000103ebd20
28-31   0000000000496788  0000000000000038  0000000000494958  0000000000000000

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  00000000000000c0  000000000000003f
12-15   0000000000000000  0000000000000000  0000000000104000  ffffffffffffffff
16-19   0000001c8128124b  0000000000000000  000000007fb31878  0000000048c20008
20-23   00000000a627ffe8  c0000000e0380004  000000ff0000ff08  8000000000000000
24-27   0000000000380000  0000000000380000  00000000ffffffff  00000000ffffffff
28-31   00000000ffffffff  00000000ffffffff  000000008fb70000  0000000010480000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

<Press any key to continue (q to quit)> 

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x000000007fb3187c
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030103b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000fffa380004
System Requestor Address     = 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000  0000000000000000
04-07   00003d091037f038  000000788fb70000  00000000001c9c38  000000000800000f
08-11   00000000103ebd20  00000000ffffffff  00000000103ebd20  0000000010474e88
12-15   0000000010374cf8  0000000000000001  000000001016c2c8  000000000804000e
16-19   000000001037f038  0000000000000002  0000000000000002  000000001040084c
20-23   000000000804000e  00000000000000c1  0000000000000000  0000000000000000
24-27   834e0b5f0800000f  00000000103ebd20  00000000103ebd20  0000000000000000
28-31   0000000000000802  0000000000000000  0000000010158288  0000000000000002

<Press any key to continue (q to quit)> 


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81045028000000
Available Memory             = 0x0000000080000000
CPU Diagnose Register 2      = 0x0203000000802004
CPU Status Register 0        = 0x2420c20000000000
CPU Status Register 1        = 0x8002000000000000
SADD LOG                     = 0xaf115ebd36f73fff
Read Short LOG               = 0xc1a0f0fffa380004
ERROR_STATUS                 = 0x0000000000500050
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000000100000442f
MEM_SYND_CORR                = 0x8c008c0000008c00
RUN_DATA_HIGH                = 0xc1bff0fffed08040
RUN_DATA_LOW                 = 0xc1bff0fffed08040
RUN_CTRL                     = 0x0000021c00001418
RUN_ADDR                     = 0xc1bff0fffed08040
System Responder Path        = 0x00ffffff0a060200


HPMC PIM Analysis Information:

Timestamp = 
  Sat Feb  2 18:48:51 GMT 2002    (20:02:02:02:18:48:51)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

A Data I/O Fetch Timeout occurred while CPU 0 was
requesting information from a device at the path 10/6/2/0 (PCI slot 2).


Memory/IO Controller Error Analysis Information:

There were multiple correctable memory errors.  See 'Memory Error Log Info'.

<Press any key to continue (q to quit)> 

-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000


-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000000000
CPU State                    = 0x00000000


<Press any key to continue (q to quit)> 

Memory Error Log Information:

Timestamp = 
  Sat Feb  2 18:48:51 GMT 2002    (20:02:02:02:18:48:51)


'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:

 This log displays the contents of memory specific registers when the
 HPMC occurred.  If there are multiple memory errors, the order they are
 listed is not indicative of the order they occurred.

                                   Trans  Addr
   Memory Error Type(s)  OV  MID    ID    par  CP   DIMM       Runway Address
   --------------------  --  ---  -----  ----  --  -------  -------------------
1) Correctable Mem       1   0x0  0x10   na    na  01       0x       0000110bc0

                                                Syndrome
                                           ------------------
                                        1) 0x8c008c0000008c00
<Press any key to continue (q to quit)> 

I/O Module Error Log Information:

Timestamp = 
  Sat Feb  2 18:48:51 GMT 2002    (20:02:02:02:18:48:51)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc009   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    0x00000000   0x4e0cc009   0x00000000fed38048
   5    ----------   0x5e0cc009   ------------------
   6    0x0000e000   0x6e0cc009   0x00000000fa38003c
   7    ----------   0x7e0cc009   ------------------
Service Menu: Enter command >  
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From - Thu Nov 08 21:21:35 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [parisc-linux-cvs] linux deller
Date: Sat, 2 Feb 2002 20:43:14 +0100
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On Saturday 02 February 2002 20:46, Helge Deller wrote:
> CVSROOT:	/var/cvs
> Module name:	linux
> Changes by:	deller	02/02/02 12:46:52
>
> Modified files:
> 	drivers/video/sti: sticore.c
>
> Log message:
> add #if 1 / #endif around the c3k VisEG PCI work-around, it easier to
> enable/disable

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Index: sticore.c
===================================================================
RCS file: /var/cvs/linux/drivers/video/sti/sticore.c,v
retrieving revision 1.33
diff -u -p -r1.33 sticore.c
--- sticore.c	2002/01/28 22:54:40	1.33
+++ sticore.c	2002/02/02 19:45:58
@@ -936,10 +936,11 @@ static int __devinit sticore_pci_init(st
 	/* XXX */
 	/* A Visualize EG PCI graphics card in a c3000 would crash the machine. */
 	/* This is an ugly work-around */
-#warning "FIXME: VisEG PCI graphic card crashes c3000"
 	switch (CPU_HVERSION) {
 	case 0x5BB:
 	case 0x5BC:
+#if 1
+#warning "FIXME: VisEG PCI graphic card crashes c3000"
 		if (pd->device == 0x1005) { /* "A4977A Visualize EG" */
 			printk("I'm not trying to set up the PCI graphic card now... "
 				"It would freeze your machine !\n");
@@ -947,6 +948,7 @@ static int __devinit sticore_pci_init(st
 			break;
 		}
 		/* fall through */
+#endif
 	default:
 		sti = sti_try_rom_generic(rom_base, fb_base, pd);
 		if (sti) {

--------------Boundary-00=_248X1F1YIHV619DL20CM--




From - Thu Nov 08 21:21:35 2018
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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: [parisc-linux] hppa_dma_ops patch
Date: Sat, 02 Feb 2002 20:32:04 -0700
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Hi all,
I've prepared code for hppa_dma_ops/CONFIG_PA11 and placed it on
	ftp://ftp.parisc-linux.org/patches/hppa_dma_ops.patch

I've built PA20 and PA11 kernels.  But not tested either.
My A500 is currently in use and I need someone else to try
with CONFIG_PA11 enabled. I'm sure I'll get to test on the A500
(CONFIG_PA20) by tomorrow and can then commit the code.

thanks,
grant



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] PIM after c3k crash w/ VisEG PCI card
Date: Sat, 02 Feb 2002 23:57:34 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:13944

Helge Deller wrote:
> Hi all,
> 
> the attached file shows the PIM of a 64bit kernel after my 
> machine crashed while trying to initialize the STI with a 
> VisEG PCI card in PCI slot 2. So it's the same problem
> as with a 32bit kernel.
> 
> Hopefully/Maybe this log may be usefull for someone of 
> you helping me to debug this problem ?

I can try.
notes/thoughts mixed in.
Much of the original text deleted.

> Timestamp = 
>   Sat Feb  2 18:48:51 GMT 2002    (20:02:02:02:18:48:51)

You should verify the timestamp actually matches the incident.
(This looks ok)

> HPMC Chassis Codes = 2cbf0  2500b  27821  2cbf4  2cbfc  

Normally these are useful - if you have the magic decoder 
for them. I don't know what the first digit "2" means.
The cbf0/500b/7821/cbf4/cbfc look familiar.

Here's what I *think* these mean based on some *really old* notes:
cbf0: HPMC
500b: Bus Timeout
7821: 782x == Mem Correctable Err, 1 == DIMM 1

	This seems to match the "clear" text that was printed later.
	Sounds like an orthogonal problem. Perhaps swap DIMM 1 with
	one of the other DIMMS?

cbf4: invalid OS HPMC checksum - page zero OS entry ptr was invalid
cbfc: couldn't call OS HPMC handler

	So fixing this would probably help get more info to console
	when it dies. Perhaps we try to setup the console before
	enabling the OS HPMC handler?

	But no console means no output unless EARLY_BOOTUP_DEBUG
	is defined in pdc_cons.c.


> General Registers 0 - 31
> 00-03   0000000000000000  ffffffffffffffff  00000000001072a0  00000000004c524
>   0

I'm going to guess GR02 is a realmode address (matching
virtual addr would be 101072a0).
Or perhaps a "double" HPMC occurred?

First one happened in STI code and then the OS HPMC handler
tripped again when it tried to output?


> IIA Space                    = 0x0000000000000000
> IIA Offset                   = 0x000000007fb3187c

Is this were STI gets loaded?
Looks like an awefully high address.
Artifact of no OS HPMC handler?

I'd hope STI would work the same on all boxes.

> Check Type                   = 0x20000000
> CPU State                    = 0x9e000004
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x0030103b
> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0x000000fffa380004

Address CPU was trying to read.

> System Requestor Address     = 0xfffffffffffa0000

HPA of CPU that timed out.

...
> '9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:
> 
> Check Summary                = 0xcb81045028000000
> Available Memory             = 0x0000000080000000
> CPU Diagnose Register 2      = 0x0203000000802004
> CPU Status Register 0        = 0x2420c20000000000
> CPU Status Register 1        = 0x8002000000000000
> SADD LOG                     = 0xaf115ebd36f73fff
> Read Short LOG               = 0xc1a0f0fffa380004
> ERROR_STATUS                 = 0x0000000000500050
> MEM_ADDR                     = 0x000001ff3fffffff
> MEM_SYND                     = 0x0000000000000000
> MEM_ADDR_CORR                = 0x000000100000442f
> MEM_SYND_CORR                = 0x8c008c0000008c00
> RUN_DATA_HIGH                = 0xc1bff0fffed08040
> RUN_DATA_LOW                 = 0xc1bff0fffed08040
> RUN_CTRL                     = 0x0000021c00001418
> RUN_ADDR                     = 0xc1bff0fffed08040
> System Responder Path        = 0x00ffffff0a060200

Much is actually interesting - but I think Read Short LOG
was the address of the most recent sub-cacheline read.
Not sure if this is only IO.

...
> A Data I/O Fetch Timeout occurred while CPU 0 was
> requesting information from a device at the path 10/6/2/0 (PCI slot 2).

Typical of two scenarios:
o device wasn't initialized/enabled
  (ie PCI CMD Bus Master and/or MMIO Enable bits not set)

o Some Bridge chip betwen CPU and PCI Device was already Fatal
  (eg DMA to invalid address with cause Astro/U2 to go fatal
   because of unresolved IO TLB fault)

> Memory/IO Controller Error Analysis Information:
> 
> There were multiple correctable memory errors.  See 'Memory Error Log Info'.

I'm wondering if this is related. Do these happen with out Viz-EG
enabled too?
You can "ser clearpim", boot, build a kernel or something, reboot
and check PIM info again.

> -----------------  Processor 0 LPMC Information ------------------

FWIW, typically LPMC is for correctable memory errors.
I believe the OS gets notified of these since it may chose
to evacuate the memory page that's getting those.

>  This log displays the contents of memory specific registers when the
>  HPMC occurred.  If there are multiple memory errors, the order they are
>  listed is not indicative of the order they occurred.
> 
>                                    Trans  Addr
>    Memory Error Type(s)  OV  MID    ID    par  CP   DIMM       Runway Address
>    --------------------  --  ---  -----  ----  --  -------  -----------------
>   --
> 1) Correctable Mem       1   0x0  0x10   na    na  01       0x       0000110b
>   c0

hmmm...is 00110bc0 a kernel address?
that's not far off from GR02.

> '9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:
> 
>  Rope     Word1        Word2            Word3
> ------ ------------ ------------
>    0    0x00000000   0x0e0cc009   0x00000000fed30048
>    1    0x00000000   0x1e0cc009   0x00000000fed32048
>    2    ----------   0x2e0cc009   ------------------
>    3    ----------   0x3e0cc009   ------------------
>    4    0x00000000   0x4e0cc009   0x00000000fed38048
>    5    ----------   0x5e0cc009   ------------------
>    6    0x0000e000   0x6e0cc009   0x00000000fa38003c
>    7    ----------   0x7e0cc009   ------------------

Rope 6 went fatal (0xe). Forgot  what word3 is - offending address?


hth,
grant



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Xref: news.gmane.org gmane.linux.ports.parisc:13945

Hi palinuxers,

I have built a new i386 -> hppa/hppa64 cross-compiler using Debian
source packages from unstable on Jan 18th. In addition I also had to
apply this patch to gcc,

http://subversions.gnu.org/cgi-bin/viewcvs/gcc/gcc/gcc/cp/search.c.diff?r1=1.217&r2=1.218

There are no major known problems with the previous xc, it was just
getting a little old. The new xc is available at,

ftp://ftp.parisc-linux.org/x86-xcompilers/xc-20020118.tar.gz

Same as always, it provides 32 bit binutils/gcc/glibc and 64 bit
binutils/gcc. It should be untar'd in / and lives in /opt/palinux. It has
been tested for two weeks with no reported problems.

Please send any issues/problems to the list.

Thanks,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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Subject: [parisc-linux] 53c700 (LASI SCSI 53c700) hang
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Xref: news.gmane.org gmane.linux.ports.parisc:13946

Hi James,

today my 715/64 completely stopped after some "dpkg -i"-ing.
According to the following lines from the serial console the new
SCSI driver stopped talking to my harddisk.
I'm sending this bug report now, after that this has happened 
~3 times in the last 2 months.
Any ideas ?

TIA,
Helge

This is what I got on my serial console. Sadly some things before it
are missing:

scsi0 (6:0) New error handler wants to abort command                                                         
        0x00 00 00 00 00 00                                                                                  
scsi: device set offline - not ready or command retry failed after bus reset: 
host 0 channel 0 id 6 lun 0    
scsi0 (6:0) New error handler wants to abort command                                                         
        0x00 00 00 00 00 00                                                                                  
scsi: device set offline - not ready or command retry failed after bus reset: 
host 0 channel 0 id 6 lun 0    
scsi0 (6:0) New error handler wants to abort command                                                         
        0x00 00 00 00 00 00                                                                                  
scsi: device set offline - not ready or command retry failed after bus reset: 
host 0 channel 0 id 6 lun 0


from the dmesg:
SCSI subsystem driver Revision: 1.00
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2                                         
scsi0 : LASI SCSI 53c700
scsi0: (6:0) Synchronous at offset 8, period 100ns
  Vendor: QUANTUM   Model: FIREBALL_TM3200S  Rev: 300X
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0            
scsi0: (6:0) Enabling Tag Command Queuing              
SCSI device sda: 6281856 512-byte hdwr sectors (3216 MB)
Partition check:                                        
 sda: sda1 sda2 sda3 sda4





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Subject: [parisc-linux] Re: 53c700 (LASI SCSI 53c700) hang
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Xref: news.gmane.org gmane.linux.ports.parisc:13947

Hi James,

it just happened again while shutting down the system - thus
now I have a little more verbose output:

Unmounting remote filesystems... scsi0 (6:0) New error handler wants to abort 
command                        
        0x2a 00 00 14 0e 5c 00 00 08 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 14 0e cc 00 00 08 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 18 0e 1c 00 00 10 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 18 0e a4 00 00 08 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 2c 0e 54 00 00 08 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 30 0e 2c 00 00 10 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 30 0e 4c 00 00 08 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 30 0f ac 00 00 08 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 30 10 2c 00 00 08 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 30 10 5c 00 00 08 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 30 10 84 00 00 08 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 08 0d fc 00 00 08 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 10 0e 1c 00 00 08 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 10 0e 44 00 00 08 00                                                                      
scsi0 (6:0) New error handler wants to abort command                                                         
        0x2a 00 00 10 0e 54 00 00 10 00                                                                      
scsi0 (6:0) New error handler wants device reset                                                             
        0x2a 00 00 14 0e 5c 00 00 08 00                                                                      
scsi0 (6:0) New error handler wants BUS reset, cmd 10040c00                                                  
        0x2a 00 00 14 0e 5c 00 00 08 00                                                                      
scsi0: Bus Reset detected, executing command 00000000, slot 00000000, dsp 
000504a8[04a8]                     
 failing command because of reset, slot 00010520, cmnd 10040400                                              
 failing command because of reset, slot 00010654, cmnd 10040200                                              
 failing command because of reset, slot 00010788, cmnd 10040600                                              
 failing command because of reset, slot 000108bc, cmnd 10041e00                                              
 failing command because of reset, slot 000109f0, cmnd 10041200                                              
 failing command because of reset, slot 00010b24, cmnd 10041c00                                              
 failing command because of reset, slot 00010c58, cmnd 10040800                                              
 failing command because of reset, slot 00010ec0, cmnd 10040a00                                              
 failing command because of reset, slot 00010ff4, cmnd 10041400                                              
 failing command because of reset, slot 00011128, cmnd 10040c00                                              
 failing command because of reset, slot 0001125c, cmnd 10041000                                              
 failing command because of reset, slot 00011390, cmnd 10040000                                              
 failing command because of reset, slot 000114c4, cmnd 10041600                                              
 failing command because of reset, slot 000115f8, cmnd 10041800                                              
 failing command because of reset, slot 0001172c, cmnd 10041a00                                              
scsi0: (6:0) Synchronous at offset 8, period 100ns                                                           
scsi0 (6:0) New error handler wants to abort command                                                         
        0x03 00 00 00 40 00                                                                                  
scsi: device set offline - not ready or command retry failed after bus reset: 
host 0 channel 0 id 6 lun 0    


Helge



On Sunday 03 February 2002 18:29, Helge Deller wrote:
> Hi James,
>
> today my 715/64 completely stopped after some "dpkg -i"-ing.
> According to the following lines from the serial console the new
> SCSI driver stopped talking to my harddisk.
> I'm sending this bug report now, after that this has happened
> ~3 times in the last 2 months.
> Any ideas ?
>
> TIA,
> Helge
>
> This is what I got on my serial console. Sadly some things before it
> are missing:
>
> scsi0 (6:0) New error handler wants to abort command
>         0x00 00 00 00 00 00
> scsi: device set offline - not ready or command retry failed after bus
> reset: host 0 channel 0 id 6 lun 0
> scsi0 (6:0) New error handler wants to abort command
>         0x00 00 00 00 00 00
> scsi: device set offline - not ready or command retry failed after bus
> reset: host 0 channel 0 id 6 lun 0
> scsi0 (6:0) New error handler wants to abort command
>         0x00 00 00 00 00 00
> scsi: device set offline - not ready or command retry failed after bus
> reset: host 0 channel 0 id 6 lun 0
>
>
> from the dmesg:
> SCSI subsystem driver Revision: 1.00
> 53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
> scsi0: 53c710 rev 2
> scsi0 : LASI SCSI 53c700
> scsi0: (6:0) Synchronous at offset 8, period 100ns
>   Vendor: QUANTUM   Model: FIREBALL_TM3200S  Rev: 300X
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
> scsi0: (6:0) Enabling Tag Command Queuing
> SCSI device sda: 6281856 512-byte hdwr sectors (3216 MB)
> Partition check:
>  sda: sda1 sda2 sda3 sda4




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Subject: [parisc-linux] SOLVED: HIL keyboard problems
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Xref: news.gmane.org gmane.linux.ports.parisc:13948

Hi list,

I've found a solution for the problem with the not-working "i" and "o"
keys on HIL keyboards and X11.

Just grab the files
ftp://ftp.parisc-linux.org/XFree86/HILkeyb/hp
ftp://ftp.parisc-linux.org/XFree86/HILkeyb/hp.lst
and store both to /etc/X11/xkb/rules

Then change your keyboard definition section in
/etc/X11/XF86Config-4 to contain the following lines

        Option          "XkbRules"      "hp"
        Option          "XkbModel"      "hphil"        
	Option          "CustomKeycodes" "yes"

and maybe:
       Option          "XkbLayout"     "de"
with "de" replaced for your language in case you have
a non-US keyboard.
btw, the CustomKeycodes = yes option does the real trick here.

Alternately you may also fetch my XF86Config-4
from ftp://ftp.parisc-linux.org/XFree86/HILkeyb/XF86Config-4
and just change the Screen-section to match your display.
Please note: My XF86Config-4 is configured to use a Microsoft 
compatible serial mouse on /dev/ttyS1 (serial port 2). 
The HIL mouse is still not supported!

Regards,
Helge




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Xref: news.gmane.org gmane.linux.ports.parisc:13949

Hi,

Could be mistaken, but the last time I used this feature, I had to press the
TAB-key ...

Hans

	-----Original Message-----
	From:	Aaron Macks [SMTP:aaronm@cs.brandeis.edu.ml.to]
	Sent:	Friday, February 01, 2002 9:05 PM
	To:	Greg Ingram
	Cc:	parisc-linux@lists.parisc-linux.org
	Subject:	Re: [parisc-linux] Display for C100?

	are you sure that your monitor can support 1280x1024?
	that sounds like the problem.  As I recall, you can switch boot-up 
	modes using the shift key.  Once you can see STI bootup on the 
	monitor, linux should read the settings
	Aaron
	>Gentlemen,
	>
	>When I bought my C100 about a year ago the sales critter claimed
the
	>graphics card could drive a run of the mill monitor.  It has a
standard
	>SVGA connector.  I've hooked up a couple of displays to no avail.
Here's
	>what seem to be the relevant kernel boot messages:
	>
	>[...]
	>18. Coral SGC Graphics (10) at 0xf6000000 [10/20], versions 0x4,
0x0, 0x77
	>[...]
	>36. Coral SGC Graphics (10) at 0xf6000000 [10/20], versions 0x4,
0x0, 0x77
	>[...]
	>STI byte mode ROM at f6000000, hpa=f6000000
	>STI byte mode ROM, id 2bcb015a-9a02587, conforms to spec rev. 8.04
	>STI device: HPA4071A
	>Console: switching to colour frame buffer device 160x64
	>fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio:
0xf6100000
	>
	>Would anyone know what kind of monitor I need?
	>
	>Regards,
	>
	>- Greg
	>
	>
	>
	>
	>
	>_______________________________________________
	>parisc-linux mailing list
	>parisc-linux@lists.parisc-linux.org
	>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


	-- 
	_______________________________________________________
	Aaron Macks(aaronm@cs.brandeis.edu)
	My sheep has seven gall bladders, that makes me the King of the
Universe!

	_______________________________________________
	parisc-linux mailing list
	parisc-linux@lists.parisc-linux.org
	http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Hi Sten,

> I have been trying to get ipv6 to work
> on sparc64/kernel 2.4 but it looks like it
> is broken somewhere in the kernel.
> I was wondering if this was a known problem.

> [root@towel ip]# ping6 ::1
> PING ::1(::1) from ::1 : 56 data bytes

It's the same on PARISC. However, on PARISC, although ping6 doesn't work,
telnet etc do work, as well as pinging the PARISC box from an Intel or
Alpha machine.

For now, i assume there might be an endianess issue in net/ipv6/raw.c
somewhere... Has anyone tested IPv6 on m68k?

Cheers,
Jochen




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On Mon, 4 Feb 2002, Jochen Friedrich wrote:

> > I have been trying to get ipv6 to work
> > on sparc64/kernel 2.4 but it looks like it
> > is broken somewhere in the kernel.
> > I was wondering if this was a known problem.
>
> > [root@towel ip]# ping6 ::1
> > PING ::1(::1) from ::1 : 56 data bytes
>
> It's the same on PARISC. However, on PARISC, although ping6 doesn't work,
> telnet etc do work, as well as pinging the PARISC box from an Intel or
> Alpha machine.

The reason I ask this is because I have been trying to setup a
tunnel, and I cant get it to work either with ifconfig or iproute.

[root@towel ip]# ip tunnel add blink mode sit remote x.x.x.x dev
eth0
ioctl: Invalid argument

-- 
Sten Spans

  "What does one do with ones money,
   when there is no more empty rackspace ?"




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This is a multi-part message in MIME format.
--------------37DFD4303330351644CC9096
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	Hi.
I've a dump driver available for 2.4.17-pa3 and I'll
upgrade my source to latest CVS bits and redo the 
modifications. But do you think it is possible to
put in the CVS these modifications ? 
I have modified:
./Makefile 
./arch/parisc/config.in
./arch/parisc/kernel/traps.c
./arch/parisc/mm/init.c
./drivers/Makefile 
./drivers/char/sysrq.c
./init/main.c
./kernel/ksyms.c
./kernel/panic.c
./kernel/sched.c

And I've added:
./include/linux/dump.h 
./drivers/dump/Makefile
./drivers/dump/dump_base.c
./drivers/dump/dump_rle.c
./drivers/dump/dump_parisc.c

So my question: 
-Do you think it is a good idea to have a dump driver available 
in the standart kernel ?
-If yes, who is able to do the code review, and put this dump 
module in the CVS ?

	Thanks.
 
-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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> -Do you think it is a good idea to have a dump driver available 
> in the standart kernel ?
> -If yes, who is able to do the code review, and put this dump 
> module in the CVS ?

The usual procedure as I understand it is to post a diff to this list
(cvs diff -uNp from the root of your linux tree). People will try it
out/post comments and once that is done someone can check this in for
you.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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From: Aaron Macks <aaronm@cs.brandeis.edu.ml.to>
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Subject: [parisc-linux] ATLAS compile under 0.93?
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has anyone sucessfully compiled ATLAS(http://www.netlib.org/atlas) 
under PARISC linux?  I got it to go most of the way, but then crashed 
in the second opt stage.  I'm going to email off an error report, but 
wantedd to check if anyone else has played with it
Aaron
-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



From - Thu Nov 08 21:21:36 2018
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] ATLAS compile under 0.93?
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Xref: news.gmane.org gmane.linux.ports.parisc:13955

In reference to a message from Aaron Macks, dated Feb 04:
> has anyone sucessfully compiled ATLAS(http://www.netlib.org/atlas) 
> under PARISC linux?  I got it to go most of the way, but then crashed 
> in the second opt stage.  I'm going to email off an error report, but 
> wantedd to check if anyone else has played with it

the Debian maintainer has been trying to build it, but i think there are
some compiler issues that we still need to fix.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
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 ^^ ~~ ^^



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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] hppa-linux gcc-3.0.3: -O2 optimization does not handle fp args correctly
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Xref: news.gmane.org gmane.linux.ports.parisc:13956

I was going to file this bug against gcc, but it looks like it's
just another instance of the fp relocation bug that has been
reported earlier..... Dave, Alan, any suggestions on how we should fix
this? 

The following program gives inconsistent output with -O1 vs -O2:

legolas[22:24] ~% gcc -O1 -o logtest logtest.c -lm
legolas[22:24] ~% ./logtest
float: nan
legolas[22:24] ~% gcc -O2 -o logtest logtest.c -lm
legolas[22:24] ~% ./logtest
float: -1.002099

The bug was first observed in the testsuite for 'mawk'. A simpler
testcase that illustrates the problem is:

#include <stdio.h>
#include <math.h>

void print_data(double d)
{
	fprintf(stderr, "float: %f\n", d);
}

int main(int argc, char **argv)
{
	double d = log(-8.0);
	print_data(d);
	return 0;
}

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/



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Subject: Re: [parisc-linux] hppa-linux gcc-3.0.3: -O2 optimization does not handle fp args correctly
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> legolas[22:24] ~% gcc -O2 -o logtest logtest.c -lm
> legolas[22:24] ~% ./logtest
> float: -1.002099

This looks ok with my new build of 3.1:

dave@gsyprf11:~/gcc_test$ gcc -O2 -o logtest logtest.c -lm
dave@gsyprf11:~/gcc_test$ ./logtest
float: nan
dave@gsyprf11:~/gcc_test$ gcc -O1 -o logtest logtest.c -lm
dave@gsyprf11:~/gcc_test$ ./logtest
float: nan

The problem that needs fixing in the linker is passing floating
arguments to indirect functions.  The above program doesn't involve
an indirect call.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: Re: [parisc-linux] hppa-linux gcc-3.0.3: -O2 optimization does not handle fp args correctly
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> The problem that needs fixing in the linker is passing floating
> arguments to indirect functions.  The above program doesn't involve
> an indirect call.

hrm... ok. any ideas when this was fixed? we can't ship 3.1 with the
upcoming debian release, so we'll need to backport the fix.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] dump driver for parisc-linux: patch vs CVS
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Bruno Vidal wrote:
> 	Hi.
> I've a dump driver available for 2.4.17-pa3 and I'll
> upgrade my source to latest CVS bits and redo the 
> modifications. But do you think it is possible to
> put in the CVS these modifications ? 


As Randolph noted, we need to see the diff and what was changed
in the generic kernel. Is the kernel and user space code GPL?

> I have modified:
> ./Makefile 
> ./arch/parisc/config.in
> ./arch/parisc/kernel/traps.c
> ./arch/parisc/mm/init.c
> ./drivers/Makefile 
> ./drivers/char/sysrq.c
> ./init/main.c
> ./kernel/ksyms.c
> ./kernel/panic.c
> ./kernel/sched.c

The last four might cause trouble....

> 
> And I've added:
> ./include/linux/dump.h 
> ./drivers/dump/Makefile
> ./drivers/dump/dump_base.c
> ./drivers/dump/dump_rle.c
> ./drivers/dump/dump_parisc.c

and we need to ask 2.4 maintainer if this can be added upstream too...

> So my question: 
> -Do you think it is a good idea to have a dump driver available 
> in the standart kernel ?

I do. But it's really up to linus/et al to decide that.
I can choose to commit this code to *our* tree (parisc-linux) only.
(and that's really not just my decision - need some consensus)

> -If yes, who is able to do the code review, and put this dump 
> module in the CVS ?

Ideally, I'd like to see outstanding non-arch code changes merged
upstream first..  Otherwise, I don't mind maintaining that code in our tree.

thanks!
grant



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Hi all,

I want to keep my C240 uptodate,
but unfortunately I don't have a Internet connection at home.
(This would cost me a fortune and here in Ireland you can't
get much more than 56.6k anyway)

However, I have a Internet connection (100Mbit) at work
(university) and I have a laptop at work that I can use at home.

I don't think that I'd be allowed to take my C240 to the university
in order to do an apt-get update && apt-get upgrade; moreover it's
damn heavy ;-)
Therefore I want to fetch the latest hppa-packages and save them
on my laptop and use the laptop as a kind of apt-proxy.

I don't have any clue how the debian package management works,
but is all I need to do mirror the URLs listed in the
/etc/apt/sources.list (at least the hppa-specific directories),
e.g. by using wget ?

Since there is Win2k preinstalled on the laptop I have to
use a solution that runs on Windows!
(at least my PC at work is 100% MS free ;)
Is there a mini-howto or software available that solves my problem
(except http://sourceforge.net/projects/apt-proxy/) ?

Any hints ?

greetings max





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>>This is an Apollo 400 which has been upgraded to a 715T/50 (Trailways-50). 
>>
> The breakout box is probably most convenient.  I've never had access
> to one.  But the first thing you need to determine is if you need
> to crossover or not.  You can do that with just a voltmeter.
> 
> Pin 7 is GND.  Pins 2 and 3 are the input and outputs, not necessarily
> in that order.  Measure from 7 to 2.  Measure from 7 to 3.  One
> of them will be close to 0V.  The other will be much higher.  I think
> -10V or something like that.  The pin with the higher voltage is
> the output.
> 
> Do the same thing on the other system also using the 25 pin connector.
> Then make sure you are not connecting the output to the output.

It turns out the Apollo 400 has a funky serial pinout.  The connector on
the back of the box allows you to connect with a normal cable.  However,
a funky "3-way splitter cable" will allow you to use 3 serial ports from
the single connector.

The port works fine with a straight-through cable, with the Apollo 400
being the DCE and a PC being the DTE.  However something about the strange
pinout interferes with using a serial mouse, even when attaching the mouse
through a crossover cable.

I obtained a breakout box and when I find the time, I will experiment with
this strange serial port.

Ben.

ps.  here is the pinout I found online

-----------------------------------------------------------------------------
H.14 - How do I build the cable to get at the hidden serial ports on a
Series 400 machine?

   Build the funky three-way splitter cable. Otherwise, a normal DB25 serial
   cable will work fine if you only want one serial port.
   Note that a splitter is not needed for the 425e, on which the three serial
   ports are already broken out on the back panel.

   This table gives the pinout for the serial connector on the rear panel.
   Source:
   HP Apollo 9000 Series 400 Domain/OS Owner's Guide (1990)
   HP Order No. A1630-90005

   +------------------------------------------------------+
   | Pin No. | Signal          | Pin No. | Signal         |
   |---------+-----------------+---------+----------------|
   |    1    | Ground          |   14    | SIO2_RTS       |
   |---------+-----------------+---------+----------------|
   |    2    | SIO1_TXD        |   15    | SIO2_CTS       |
   |---------+-----------------+---------+----------------|
   |    3    | SIO1_RXD        |   16    | SIO2_DCD       |
   |---------+-----------------+---------+----------------|
   |    4    | SIO1_RTS        |   17    | Spare          |
   |---------+-----------------+---------+----------------|
   |    5    | SIO1_CTS        |   18    | SIO2_DTR       |
   |---------+-----------------+---------+----------------|
   |    6    | SIO1_DSR        |   19    | SIO3_DTR       |
   |---------+-----------------+---------+----------------|
   |    7    | Inline resistor |   20    | SIO1_DTR       |
   |---------+-----------------+---------+----------------|
   |         | SIO1_DCD        |         |                |
   |    8    | (not supported  |   21    | SIO3_TXD       |
   |         | in Domain/OS)   |         |                |
   |---------+-----------------+---------+----------------|
   |         |                 |         | SIO1_RI        |
   |    9    | SIO3_RXD        |   22    | (not supported |
   |         |                 |         | in Domain/OS)  |
   |---------+-----------------+---------+----------------|
   |   10    | SIO3_CTS        |   23    | SIO3_RTS       |
   |---------+-----------------+---------+----------------|
   |   11    | Spare           |   24    | Spare          |
   |---------+-----------------+---------+----------------|
   |   12    | SIO2_TXD        |   25    | SIO3_DCD       |
   |---------+-----------------+---------+----------------|
   |   13    | SIO2_RXD        |         |                |
   +------------------------------------------------------+



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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: [parisc-linux] Re: 53c700 (LASI SCSI 53c700) hang
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Xref: news.gmane.org gmane.linux.ports.parisc:13962

What these errors tell me is that your HD accepted more tags than it could 
cope with and then choked.  Linux error handler isn't very good at handling 
this situation.  Also, your disc:

deller@gmx.de said:
>   Vendor: QUANTUM   Model: FIREBALL_TM3200S  Rev: 300X 

Is a known trouble causer with tag command queueing.  Initially, try taking 
the #define NCR_700_MAX_TAGS in drivers/scsi/53c700.h down to 4 or 2 and 
recompiling the driver.  Alternatively, turn off tagged command queueing 
altogether by commenting out this block of code:

	if(SCp->device->tagged_supported && !SCp->device->tagged_queue
	   && (hostdata->tag_negotiated &(1<<SCp->target)) == 0
	   && NCR_700_is_flag_clear(SCp->device, NCR_700_DEV_BEGIN_TAG_QUEUEING)) {
		/* upper layer has indicated tags are supported.  We don't
		 * necessarily believe it yet.
		 *
		 * NOTE: There is a danger here: the mid layer supports
		 * tag queuing per LUN.  We only support it per PUN because
		 * of potential reselection issues */
		printk(KERN_INFO "scsi%d: (%d:%d) Enabling Tag Command Queuing\n", SCp->
device->host->host_no, SCp->target, SCp->lun);
		hostdata->tag_negotiated |= (1<<SCp->target);
		NCR_700_set_flag(SCp->device, NCR_700_DEV_BEGIN_TAG_QUEUEING);
		SCp->device->tagged_queue = 1;
	}

in drivers/scsi/53c700.c at about line 1891.

I am getting around to adding the code changes to make this able to be done as 
module/kernel command line options.

James





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Xref: news.gmane.org gmane.linux.ports.parisc:13963

Hi,

I have tried again to compile an xc on MacOSX 10.1.2 
(powerpc-apple-darwin5.2)
targeting hppa64-linux with the most recent xc sources provided by 
Taggart (thank you
again :), but the build breaks always at the same point, when
testing libgcc1.

All the 32bit stuff (binutils, libc, gcc) compiled perfectly fine, but 
I'm not absolutly certain that it is operationnal, contrary to the 
previous xc I made (see my other mail for details).

So here is the error I got:

Testing libgcc1.  Ignore linker warning messages.
/Users/varenet/palinux-builds/xc-build/gcc/gcc/xgcc 
-B/Users/varenet/palinux-builds/xc-build/gcc/gcc/ 
-B/usr/local/palinux/hppa64-linux/bin/ 
-B/usr/local/palinux/hppa64-linux/lib/ -isystem 
/usr/local/palinux/hppa64-linux/include -DCROSS_COMPILE -DIN_GCC    -W 
-Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem 
./include  libgcc1-test.o -o libgcc1-test \
   -nostartfiles -nostdlib `/Users/varenet/palinux-builds/xc-
build/gcc/gcc/xgcc -B/Users/varenet/palinux-builds/xc-build/gcc/gcc/ 
-B/usr/local/palinux/hppa64-linux/bin/ 
-B/usr/local/palinux/hppa64-linux/lib/ -isystem 
/usr/local/palinux/hppa64-linux/include --print-libgcc-file-name`
collect2: ld terminated with signal 10 [Bus error], core dumped
/usr/local/palinux/hppa64-linux/bin/ld: warning: cannot find entry 
symbol main; defaulting to 0000000000010280
make[1]: *** [libgcc1-test] Error 1
make: *** [all-gcc] Error 2

Any clue ?


Thibaut VARENE
PA/Linux ESIEE Team
http://www.esiee.fr/puffin




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Xref: news.gmane.org gmane.linux.ports.parisc:13964

Hi again,

So I tried to compile kernel 2.4.17-pa17 (fetched from CVS), using a 
.config that has already been used to successfully compile the same 
kernel for B132 with Taggart's X86 xc.
It broke when linking vmlinux.

Here is the error output:

hppa-linux-ld  -r -o network.o socket.o core/core.o ethernet/ethernet.o 
802/802.o sched/sched.o netlink/netlink.o ipv4/ipv4.o unix/unix.o 
packet/packet.o sunrpc/sunrpc.o sysctl_net.o
hppa-linux-ld -T /Users/varenet/linux/arch/parisc/vmlinux.lds  
arch/parisc/kernel/head.o  init/main.o init/version.o \
         --start-group \
         arch/parisc/kernel/pdc_cons.o arch/parisc/kernel/process.o 
arch/parisc/lib/lib.a arch/parisc/mm/mm.o arch/parisc/kernel/kernel.o 
arch/parisc/hpux/hpux.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o 
arch/parisc/kernel/init_task.o \
          drivers/char/char.o drivers/block/block.o drivers/misc/misc.o 
drivers/net/net.o drivers/media/media.o drivers/scsi/scsidrv.o 
drivers/pci/driver.o drivers/video/video.o drivers/gsc/gscbus.o 
arch/parisc/math-emu/math.o \
         net/network.o \
         `hppa-linux-gcc -print-libgcc-file-name` 
/Users/varenet/linux/arch/parisc/lib/lib.a 
/Users/varenet/linux/lib/lib.a  \
         --end-group \
         -o vmlinux
make: *** [vmlinux] Bus error
make: *** Deleting file `vmlinux'

Any idea ?


Thibaut VARENE
PA/Linux ESIEE Team
http://www.esiee.fr/puffin




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> build/gcc/gcc/xgcc -B/Users/varenet/palinux-builds/xc-build/gcc/gcc/ 
> -B/usr/local/palinux/hppa64-linux/bin/ 
> -B/usr/local/palinux/hppa64-linux/lib/ -isystem 
> /usr/local/palinux/hppa64-linux/include --print-libgcc-file-name`
> collect2: ld terminated with signal 10 [Bus error], core dumped

It may be totally unrelated but I am also having trouble with ld
segfaulting when it tries to build a shared library on hppa64-hp-hpux11.11.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



From - Thu Nov 08 21:21:36 2018
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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: 53c700 (LASI SCSI 53c700) hang
Date: Mon, 4 Feb 2002 20:27:53 -0500
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> What these errors tell me is that your HD accepted more tags than it could 
> cope with and then choked.  Linux error handler isn't very good at handling 
> this situation.  Also, your disc:
> 
> deller@gmx.de said:
> >   Vendor: QUANTUM   Model: FIREBALL_TM3200S  Rev: 300X 
> 
> Is a known trouble causer with tag command queueing.  Initially, try taking 
> the #define NCR_700_MAX_TAGS in drivers/scsi/53c700.h down to 4 or 2 and 
> recompiling the driver.  Alternatively, turn off tagged command queueing 
> altogether by commenting out this block of code:
> 
> I am getting around to adding the code changes to make this able to be done as 
> module/kernel command line options.
> 
> James
>

I've been having problems with the driver for quite some time now.

SCSI subsystem driver Revision: 1.00
53c700: consistent memory allocation failed
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0 
scsi0 : LASI SCSI 53c700
  Vendor: FUJITSU   Model: M2694ES-512       Rev: 8134
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sda: 2117025 512-byte hdwr sectors (1084 MB)
Partition check:
 sda: sda1 sda2

Compiled kernel with tag queue code _always_ disabled (2.4.17-pa18 from CVS).

#ifdef NEVERCOMIPLE
        if(SCp->device->tagged_supported && !SCp->device->tagged_queue
           && (hostdata->tag_negotiated &(1<<SCp->target)) == 0
           && NCR_700_is_flag_clear(SCp->device, NCR_700_DEV_BEGIN_TAG_QUEUEING)) {
                /* upper layer has indicated tags are supported.  We don't
                 * necessarily believe it yet.
                 *
                 * NOTE: There is a danger here: the mid layer supports
                 * tag queuing per LUN.  We only support it per PUN because
                 * of potential reselection issues */
                printk(KERN_INFO "scsi%d: (%d:%d) Enabling Tag Command Queuing\n", SCp->device->host->host_no, SCp->target, SCp->lun);
                hostdata->tag_negotiated |= (1<<SCp->target);
                NCR_700_set_flag(SCp->device, NCR_700_DEV_BEGIN_TAG_QUEUEING);
                SCp->device->tagged_queue = 1;
        }
#endif

in drivers/scsi/53c700.c at about line 1891.

Start up one of those real-world scripts :}

#!/bin/tcsh
while ( 1 )
find /bin | xargs cat > /dev/null
find /boot | xargs cat > /dev/null
find /etc | xargs cat > /dev/null
find /root | xargs cat > /dev/null
find /sbin | xargs cat > /dev/null
find /tmp | xargs cat > /dev/null
find /usr | xargs cat > /dev/null
find /var | xargs cat > /dev/null
end

root@node44:/proc/scsi/lasi700# cat 0
Total commands outstanding: 1
Target  Depth  Active  Next Tag
======  =====  ======  ========
  6: 0     16       1         0


10 minutes into the run, the find _and_ cat are D on the process list.
The drive is officially unresponsive around this point... maybe it was
just cat and find you say?

Soon after, kupdated goes into D aswell. From there on in the box is
locking up left right and center. I wish I had kdb and could see what's
going on.

I've repeated this lockup 3 times.

Most intersting is that when I reenable the Tag queueing code but change
the Tag depth to 2 (instead of 16). The machine doesn't seem to hang.
I have a box currently running well over the 10 minute mark that I will
leave running until tommorow.

The sim700 driver runs poorly, but happily for days... generating heat :)
Sadly, the sim700 driver is currently only functionaly with the older kernels.
I'm using 2.4.9-pa25 to run the 715/50's in our cluster (diskless boxes run
the latest kernel no problems).

Any thoughts? 

Is the issue as simple as: 

Leave Tag queuing in, but set depth to something low (2 or 4).

Good: 	Tag Queu, Depth = 2

Bad: 	No Tag Queue. 
	Tag Queue, Depth = 16.

c.
 



From - Thu Nov 08 21:21:37 2018
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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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Subject: Re: [parisc-linux] dump driver for parisc-linux: patch vs CVS
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	Hi.
So my work for the next few days will to create a patch
of all my modification for the latest CVS bits (so you will
have only the modifications). But I'll send it to which people ?

Grant Grundler wrote:
> As Randolph noted, we need to see the diff and what was changed
> in the generic kernel. Is the kernel and user space code GPL?

Everything is under GPL, even the code coming from SGI. I leave
all informations about the SGI code and the header of all their files.
But I've modified the code to handle specific needs for p4. I'm
also currently added code to handle multiple dump device. And I've also
the project to dump only kernel space and not user space.

> > I have modified:
> > ./Makefile
> > ./arch/parisc/config.in
> > ./arch/parisc/kernel/traps.c
> > ./arch/parisc/mm/init.c
> > ./drivers/Makefile
> > ./drivers/char/sysrq.c
> > ./init/main.c
> > ./kernel/ksyms.c
> > ./kernel/panic.c
> > ./kernel/sched.c
> 
> The last four might cause trouble....
I know, I can try to put kernel/ksyms.c to arch/parisc/kernel/parisc_ksyms.c
but it can break the code for ia64 and other architecture. but for the other
it is not possible: panic (call to dump), sched.c (another call to dump), 
main.c (init of dump). I've also an IA64 box where I can do test, so I've also
the project to do it working on it (lots of project :-).

> 
> >
> > And I've added:
> > ./include/linux/dump.h
> > ./drivers/dump/Makefile
> > ./drivers/dump/dump_base.c
> > ./drivers/dump/dump_rle.c
> > ./drivers/dump/dump_parisc.c
> 
> and we need to ask 2.4 maintainer if this can be added upstream too...
I defenitly think that it is a really needed feature (I'm working perhaps 
since a too long time in support center :-).

> 
> > So my question:
> > -Do you think it is a good idea to have a dump driver available
> > in the standart kernel ?
> 
> I do. But it's really up to linus/et al to decide that.
> I can choose to commit this code to *our* tree (parisc-linux) only.
> (and that's really not just my decision - need some consensus)

perfectly understand, so, you already have my vote :-)

> 
> > -If yes, who is able to do the code review, and put this dump
> > module in the CVS ?
> 
> Ideally, I'd like to see outstanding non-arch code changes merged
> upstream first..  Otherwise, I don't mind maintaining that code in our tree.
>
My main probleme is to have a up to date code, because I have to follow
each modification and redo the merge each time I want to update my CVS.
I agree that I need to add comments in my code, but before going further
I prefer to know if this code will stay a "patch" or not.
 
> thanks!
> grant
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Subject: [parisc-linux] Problems compoling OPENSSL-0.9.6c under PA/Linux 0.9.3 bundle
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I've tried to compile OPENSSL for the package provided from the folks at 
http://www.openssl.org -- latest version: 0.9.6c.  Compiler blew up with 
the "-m486" option.  Took it out, and about 1/2 way into the compilation, 
the application compilation foobared.

Anyone got any ideas?  Thanks.

Bob Radvanovsky
kempyuter kensulting services, inc.
rsradvan@k2si.com

P.S.  Great O/S port-over!!!




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Make sure the following lines (or similar) are in your
/etc/apt/sources.list:

deb http://non-us.debian.org/debian-non-US unstable/non-US main
deb-src http://non-us.debian.org/debian-non-US unstable/non-US main

then run 'apt-get update' and 'apt-get install openssl'

ok, that doesn't really answer your question... :-)

alternatively, do 'apt-get update; apt-get source openssl' to get the
debian sources, which do build on hppa.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Bonjour,

Je suis actuellement dtenteur d'une vielle station HP apollo 735, et 
j'aimerai installer linux ... d'o ma visite sur votre site. Seulement je 
n'ai pas de graveur, donc problme pour moi faire une installation ! Faites 
vous des CDs pour l'install ?

Merci de votre aide.

Dominique - Qubec

_________________________________________________________________
Rejoignez le plus grand service de messagerie au monde avec MSN Hotmail. 
http://www.hotmail.com/fr





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Dominique

Check out.....

http://parisc-linux.org/release-0.9/index.html

On Tue, 5 Feb 2002, The_dom labourre wrote:

>
> Bonjour,
>
> Je suis actuellement d=E9tenteur d'une vielle station HP apollo 735, et
> j'aimerai installer linux ... d'o=F9 ma visite sur votre site. Seulement =
je
> n'ai pas de graveur, donc probl=E9me pour moi faire une installation ! Fa=
ites
> vous des CDs pour l'install ?
>
> Merci de votre aide.
>
> Dominique - Qu=E9bec
>
> _________________________________________________________________
> Rejoignez le plus grand service de messagerie au monde avec MSN Hotmail.
> http://www.hotmail.com/fr
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] dump driver for parisc-linux: patch vs CVS
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> So my work for the next few days will to create a patch
> of all my modification for the latest CVS bits (so you will
> have only the modifications). But I'll send it to which people ?

Either put it on the web/ftp some place and send the URL to this list, or if
the patch is not too large, just compress and attach it in a mail to the
list. My guess is that this is fairly large, so you might want to go
with the first option. Or you can send it to, say, Grant or myself, and
we can put it up on the ftp.p-l.org site and post the URL for you.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Hi Peter,

On Tue, 5 Feb 2002, Peter Mottram wrote:

> Check out.....
>
> http://parisc-linux.org/release-0.9/index.html

With the bit of French i know, i think Dominique was asking if someone
sells him the CDs as he doesn't have a CD burner.

--jochen




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Bruno Vidal wrote:
> 	Hi.
> So my work for the next few days will to create a patch
> of all my modification for the latest CVS bits (so you will
> have only the modifications). But I'll send it to which people ?

1) Send "cvs diff" output to this list
2) Use ".cvsrc" from build-tools/ repository
  ("diff -uNp" is key here)
3) If the diff is more than 100-200 lines, post a URL instead

I think I, tausq, ESIEE, willy should review/try it.

> Grant Grundler wrote:
> > As Randolph noted, we need to see the diff and what was changed
> > in the generic kernel. Is the kernel and user space code GPL?
> 
> Everything is under GPL, even the code coming from SGI. I leave
> all informations about the SGI code and the header of all their files.

Ok. You might also want to put a URL of your tarball of programs...perhaps
some debian types on debian-hppa would be interested in creating
a debian package of those.

> But I've modified the code to handle specific needs for p4.
> I'm
> also currently added code to handle multiple dump device. And I've also
> the project to dump only kernel space and not user space.

Cool! if you could keep those changes seperate for now...that
might make life easier in case we want to send those changes
back "upstream" (to SGI I assume).

> > > ./init/main.c
> > > ./kernel/ksyms.c
> > > ./kernel/panic.c
> > > ./kernel/sched.c
> > 
> > The last four might cause trouble....

> I know, I can try to put kernel/ksyms.c to arch/parisc/kernel/parisc_ksyms.c
> but it can break the code for ia64 and other architecture. but for the other
> it is not possible: panic (call to dump), sched.c (another call to dump), 
> main.c (init of dump). I've also an IA64 box where I can do test, so I've als
>   o
> the project to do it working on it (lots of project :-).

heh...if you know it will break another arch, leave it alone.

> I defenitly think that it is a really needed feature (I'm working perhaps 
> since a too long time in support center :-).

Even folks outside the support center think it's a good idea.

...
> My main probleme is to have a up to date code, because I have to follow
> each modification and redo the merge each time I want to update my CVS.
> I agree that I need to add comments in my code, but before going further
> I prefer to know if this code will stay a "patch" or not.

I can't promise anything. You know what I want.
Comments/guidance from Alan Cox and/or Matthew Wilcox would be good here.

grant



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Xref: news.gmane.org gmane.linux.ports.parisc:13975

Hi,

I'm using HPPA-Debian for 3 weeks and so I'm not very skilled and I have=20
different Problems. I hope you could help to solve.
My machine is a HP712/60 with 64 MB RAM.

First Problem:
Since my last dist-upgrade I can't start the X-Server anymore.
If I start gdm I can see the gray background for a short moment and move=20
the mouse and then the gdm restarts.
If I start with startx the following output is printed:

(II) FBDev(0): using default device
(II) Running in FRAMEBUFFER Mode
(**) FBDev(0): Depth 8, (--) framebuffer bpp 8
(=3D=3D) FBDev(0): Default visual is PseudoColor
(=3D=3D) FBDev(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDev(0): Hardware:  (vidmem: 2048k)
(II) FBDev(0): Checking Modes against framebuffer device...
(II) FBDev(0):  mode "1280x1024" ok
(II) FBDev(0): Checking Modes against monitor...
(--) FBDev(0): Virtual size is 1280x1024 (pitch 1280)
(**) FBDev(0): Built-in mode "current": 28000.0 MHz, 21875.0 kHz, 21362.3 Hz
(++) FBDev(0): DPI set to (100, 100)
(**) FBDev(0): Using "Shadow Framebuffer"
(=3D=3D) FBDev(0): Backing store disabled
PEXExtensionInit: Couldn't open default PEX font file  Roman_M
(**) Mouse1: Protocol: "ps/2"
(**) Mouse1: Core Pointer
(=3D=3D) Mouse1: Buttons: 3
(**) Mouse1: Emulate3Buttons, Emulate3Timeout: 50
(II) Keyboard "Keyboard1" handled by legacy driver
(II) XINPUT: Adding extended input device "Mouse1" (type: MOUSE)

waiting for X server to shut down

Does anyone know what to do?

My second problem is that my keyboard doesn work well.
It's a PS2 Keyboard an I installed a german keymap but if I press e.g. > I=
=20
get a error-message like:
undefined scancode.
What could I do?

Third problem:
I wanna use the Cocoon2 XML Server with Tomcat but to start Tomcat I need=20
java. Is there any Java runtime available or is it impossible at the moment=
=20
to run Tomcat and Cocoon?

Last problem:
I also wanna run the zope server, but when I start it with zopectl start it=
=20
failed and I don't know what to do. Does anyone work with zope under=20
HPPA-Debian?

Thanx,
Tilo

Student of Computer Science at Chemnitz University of Technology
|[ Tilo Jandt, Vetterstra=DFe 70, Zi. 330, D-09126 Chemnitz        ]|
|[ mailto:tija@hrz.tu-chemnitz.de ]  [ ICQ: 73832493               ]|
|[ Phone: +49 179 5333 255        ]  [ Fax: +49 89 2443 25531 ]|





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Hey Tilo,

For X problem, I assume X has already working for you?
I met a similar problem and I solved it by matching the actual setting
definition of my display (can be get at boot prompt) to the XF86COnfig-4:
ie for my Display definition of 1280*1024 in XF86COnfig-4:
...
Section "Screen"
    ...
    Subsection "Display"
        Depth 8
        Modes "1280*1024"
    EndSubSection
    ....
EndSection

(may be for you change on the contrary)

(my kernel is a cvs 2.4.17-pa11 and xfree package are released 4.1.0-14)

For Keyboard and other, sorry I could not help.

Good luck,
    Joel

-------------------------------------------------
This mail sent through Tiscalinet Webmail (http://webmail.tiscali.be)



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I am facing simila problem and tried the fix suggested
Rather, I don't know whether I have applied the fix xorrectly.
Could anyone please explain how to fix this problem.


Question
----------

And now, an X question :-)

I'm getting this on startup of the X server,

        FBIOPUT_VSCREENINFO: Invalid argument

        Fatal server error:
        AddScreen/ScreenInit failed for driver 0

Any ideas? Ran the release note patch, and upgraded to 2.4.16-pa24 to no

avail. X server is rev 4.1.0-9.0.1.
-----------------------------------------------------

>Date: Wed, 26 Dec 2001 13:51:17 -0800
>To: bheadley@interaccess.com
>From: Christian Suder <csuder@cisco.com>
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] Re: XFree86 Question
>
>
>In case you still have the problem, if I remember correctly the reason
>is
>that the XFree config file is generated in a "PC-ish" manner with a
>lot of
>different screen definitions and tries to start X in a >combination the
fb
>device does not support. Edit it to have just an >entry for the type of

>screen you have (likely 1280x1024, 8bit).
>
> Christian

I was having the same problem on a B132L+. This fix got me up and going.

Thanx Christian!

_________________________________________________________________
Join the world?s largest e-mail service with MSN Hotmail.
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On Wed, 6 Feb 2002, Gururaj Ananthateerta wrote:
> I am facing simila problem and tried the fix suggested
> Rather, I don't know whether I have applied the fix xorrectly.
> Could anyone please explain how to fix this problem.
>
> Question
> ----------
>
> And now, an X question :-)
>
> I'm getting this on startup of the X server,
>
>         FBIOPUT_VSCREENINFO: Invalid argument
>
>         Fatal server error:
>         AddScreen/ScreenInit failed for driver 0
>
> Any ideas? Ran the release note patch, and upgraded to 2.4.16-pa24 to no
> avail. X server is rev 4.1.0-9.0.1.

I had the same error when I had my X config set to default to 24-bit color
and the FB wanted 8-bit color. Didn't seem like a very intuitive error :-)

This was on a C180 with default adapter...




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Xref: news.gmane.org gmane.linux.ports.parisc:13979

Gururaj Ananthateerta wrote:
> 
> 
> 
> I am facing simila problem and tried the fix suggested
> Rather, I don't know whether I have applied the fix xorrectly.
> Could anyone please explain how to fix this problem.
> 
> 
> Question
> ----------
> 
> And now, an X question :-)
> 
> I'm getting this on startup of the X server,
> 
>         FBIOPUT_VSCREENINFO: Invalid argument
> 
>         Fatal server error:
>         AddScreen/ScreenInit failed for driver 0
> 
> Any ideas? Ran the release note patch, and upgraded to 2.4.16-pa24 to no
> 
> avail. X server is rev 4.1.0-9.0.1.


The kernel when it boots up displays the colordepth and resolution that 
the frame buffer device will run at. The message scrolls away fast, but 
can be found in your /var/log/messages file.

Another way to get the same info is to run (as root),

	fbset -i

 From my machine, I get:

--
mode "1280x1024"
     geometry 1280 1024 1280 1024 32
     timings 0 0 0 0 0 0 0
     rgba 8/16,8/8,8/0,8/24
endmode

Frame buffer device information:
     Name        :
     Address     : 0xf5000000
     Size        : 8388608
     Type        : PACKED PIXELS
     Visual      : TRUECOLOR
     XPanStep    : 0
     YPanStep    : 0
     YWrapStep   : 0
     LineLength  : 8192
     Accelerator : No
--

This tells me that the framebuffer supports 1280x1024 resolution ONLY. 
If you look on the second line, the last number is 32, which is my 
colordepth (your mileage may vary; I have a C110). I forget where the 
explanation of how 32 bpp is really 24 bpp -- maybe in the X docs 
somewhere, but I knew that already. Here's how I converted that info 
into my XF86Config-4 file:

---
Section "Device"
         Identifier      "Generic Video Card"
         Driver          "fbdev"
         Option          "UseFBDev"              "true"
EndSection

Section "Monitor"
         Identifier      "Generic Monitor"
         HorizSync       30-100
         VertRefresh     50-160
         Option          "DPMS"
EndSection

Section "Screen"
         Identifier      "Default Screen"
         Device          "Generic Video Card"
         Monitor         "Generic Monitor"
         DefaultDepth    24
         SubSection "Display"
                 Depth           1
                 Modes           "1280x1024"
         EndSubSection
         SubSection "Display"
                 Depth           4
                 Modes           "1280x1024"
         EndSubSection
         SubSection "Display"
                 Depth           8
                 Modes           "1280x1024"
         EndSubSection
         SubSection "Display"
                 Depth           15
                 Modes           "1280x1024"
         EndSubSection
         SubSection "Display"
                 Depth           16
                 Modes           "1280x1024"
         EndSubSection
         SubSection "Display"
                 Depth           24
                 Modes           "1280x1024"
         EndSubSection
EndSection
---
Which tells X that my framebuffer supports colordepths from 1 to 32 
(actually 24), and for each, the video resolution is only 1280x1024 (no 
other resolutions supported. If you give it any other resolution(s), 
you'll get the terse FBIOPUT_VSCREENINFO error.

Now, what else? Ah, Gnome & Gtk. Those two, in conjunction with the X 
server and the kernel that came with 0.9.3, do not work. I forget the 
exact error message, but it had to do with saving private information...

Update the kernel. I forget which version had this fixed; I suspect that 
the kernel 'dselect' offers to download will do the trick. If not, get 
the latest sources and roll one.

Can't run X until this is done? (And you can't build a kernel without 
several xterms to entertain?) Well, if you are running Gnone, or a 
window manager that uses Gtk, you're temporarily doomed until you've 
fixed the kernel.

What to do in the meantime? Well, you need to look in the 
/etc/alternatives directory. There's a softlink there called 
'x-window-manager' that points to the window manager you want to run. If 
it's pointing to a Gtk-based on, you're doomed. Go get a copy of 
BlackBox, have the softlink point to that window manager.

While you are at it, check what /etc/alternatives/x-session-manager is 
pointing to. If you're set up for gnome, it points to 
/usr/bin/gnome-session. If kde, /usr/bin/kde2. If you are using a 
"simpler" window manager by itself (like blackbox, fvwm, twm, gwm), the 
link doesn't exist. If you have it, remove it.

Now you can start xinit, fire off a few xterms, get dselect running, get 
the kernel fixed, and have a good time.


-- 
____               .:.                 ____
Bryan W. Headley - bwheadley@earthlink.net




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Xref: news.gmane.org gmane.linux.ports.parisc:13980

Hi, I am considering migrating a few boxes from hp-ux to parisc-linux as I
have done this successfully on a 712/100 already.. The boxes in question
are D-class servers (220,230,250,etc) and some of them have jurassic-era
(ancient) C2300 disk arrays attached to them, which I know very little
about. Can anyone confirm that this is going to work under parisc-linux,
I'd like to see a "success story" before I rip out hpux and install Linux
=)

/bd




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Hi,

when using a 720 (running linux, of course ;-) as serial console
for a 715(old) I've noticed that the terminal (720) produces garbage
when the 715 comes to the firmware prompt (both running at 115200).
This is not a flow control or something problem. Investigating on
that I've found some oddities concerning setserial, baud_base and
the divisor calculation in the serial driver ...

- by default all parisc serial devices' baud_base is set to 454545
  (derived from the LASI UART crystal's frequency). The actual divisor
  is calculated in change_speed() of serial.c to be

  quot = baud_base / baud;

  with all integers. Thus, 454545 / 115200 = 3. The resulting baud
  rate should be something like 454545 / 3 = 151515. That's somewhat
  far away from 115200, explaining the garbage.

- I've made a simple measurement of the actual baud rate using a DMM
  with builtin frequency counter: set the port to 8N1 and outputting
  0x55 continously should produce a square wave of half the baud rate
  frequency at the transmit pin. So I've verified that at least the
  720 seems to have a real baud_base of 460800 (the measured frequency
  was 57.6kHz for a divisor of 4).

- trying to change the baud_base using setserial to 460800 failed with
  EADDRINUSE. I've found the reason to be a loop in set_serial_info():

        /* Make sure address is not already in use */
        if (new_serial.type) {
                for (i = 0 ; i < NR_PORTS; i++)
                        if ((state != &rs_table[i]) &&
                            (rs_table[i].port == new_port) &&
                            rs_table[i].type)
                                return -EADDRINUSE;
        }

  Memory mapped parisc ports all have port == 0, so this has to fail.
  Temporary workaround: `setserial /dev/ttyS1 port 0x10000 ...' once
  will prevent the above loop from finding conflicts.

So, the following things have to be fixed:

- get/set_serial_info have to be enhanced for memory mapped ports
- setserial should be enhanced accordingly
- divisor calculation should be changed at least to round to nearest,
  not round towards zero, or LASI ports might still suffer from the first
  problem _if_ they really have baud_base 454545
- baud_base should be initialized correctly for other gsc based ports.

If someone can confirm my analysis and tell me the direction of how to
fix these things I would be willing to work on it (shouldn't be hard,
maybe boring ;-).

Enrik
-- 
Enrik Berkhan                                         plan b. GmbH
                                                      Rppurrer Strae 4
+49-721-388582 (voice)                                76137 Karlsruhe
+49-721-388581 (fax)                                  Germany



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Hi,
Did anybody got a C240 to boot off of 64-bit kernel?

Marcin Kurc
CAD Systems Administrator
Cooper-Standard Automotive 



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On Thu, Feb 07, 2002 at 07:23:31AM -0500, Kurc, Marcin A. wrote:
> Hi,
> Did anybody got a C240 to boot off of 64-bit kernel?

I booted a c360 with 64 bit kernel, so it should work.  You have to
build your own kernel though, with CONFIG_PDC_NARROW=y.

Whether there is any point running a 64 bit kernel on a box that has
less that 4G of RAM is a different matter altogether.

Richard





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On Thu, Feb 07, 2002 at 07:23:31AM -0500, Kurc, Marcin A. wrote:
> Hi,
> Did anybody got a C240 to boot off of 64-bit kernel?

you need to turn on CONFIG_PDC_NARROW if you do this.  But don't bother,
there is no point in booting a 64-bit kernel on a C240.

-- 
Revolutions do not require corporate support.



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On Thursday 07 February 2002 13:08, Enrik Berkhan wrote:
> Hi,
>
> when using a 720 (running linux, of course ;-) as serial console
> for a 715(old) I've noticed that the terminal (720) produces garbage
> when the 715 comes to the firmware prompt (both running at 115200).
> This is not a flow control or something problem. Investigating on
> that I've found some oddities concerning setserial, baud_base and
> the divisor calculation in the serial driver ...

AFAIK the firmware output only happens at 9600 baud (8N1) and you can't 
change that. After the linux kernel has booted you can of course use
a higher rate.

Helge
-- 
Helge Deller
SAP AG - LinuxLab and Unix Platforms
email: helge.deller@sap.com




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=?ISO-8859-1?Q?Bj=F8rn_Djupvik?= wrote:
> Hi, I am considering migrating a few boxes from hp-ux to parisc-linux as I
> have done this successfully on a 712/100 already.. The boxes in question
> are D-class servers (220,230,250,etc) and some of them have jurassic-era
> (ancient) C2300 disk arrays attached to them, which I know very little
> about.

1) D-class is quite a different beast than 712.
   Has anyone tried installing 0.9.3 on a D-class?
   Are all the interface cards you care about supported with linux drivers?

2) can someone confirm C2300 disk array  == "Cascade" from 1991-93?
   If so, it has utilities/daemon running that monitors the health of
   the array. I highly doubt that utility will ever get ported since it
   needs kernel driver support for a non-existant LUN 5 or 7 (I forgot).
   Consider replacing the array with SCSI JBOD. You'd get an order of
   magnitude increase in storage capacity and performance.

> Can anyone confirm that this is going to work under parisc-linux,
> I'd like to see a "success story" before I rip out hpux and install Linux
> =)

yeah - that's a good idea.

grant



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On Thu, Feb 07, 2002 at 03:41:34PM +0100, Helge Deller wrote:
> AFAIK the firmware output only happens at 9600 baud (8N1) and you can't 
> change that. After the linux kernel has booted you can of course use
> a higher rate.

The firmware allows higher baud rates, at least on the 710, 715 and 720.
I'm using it, so it does work ;-) Try "help rs232" when in boot admin
mode.


Enrik
-- 
Enrik Berkhan                                         plan b. GmbH
                                                      Rppurrer Strae 4
+49-721-388582 (voice)                                76137 Karlsruhe
+49-721-388581 (fax)                                  Germany



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Enrik Berkhan wrote:
> Investigating on
> that I've found some oddities concerning setserial, baud_base and
> the divisor calculation in the serial driver ...

good work.

...
>   Memory mapped parisc ports all have port == 0, so this has to fail.
>   Temporary workaround: `setserial /dev/ttyS1 port 0x10000 ...' once
>   will prevent the above loop from finding conflicts.
> 
> So, the following things have to be fixed:
> 
> - get/set_serial_info have to be enhanced for memory mapped ports
> - setserial should be enhanced accordingly

If other non-intel architectures don't have a solution for this.
My first thought was to assign fake port addresses.

Do PCI serial cards also use MMIO?

> - divisor calculation should be changed at least to round to nearest,
>   not round towards zero, or LASI ports might still suffer from the first
>   problem _if_ they really have baud_base 454545
> - baud_base should be initialized correctly for other gsc based ports.

We'd have to dig a bit for documentation on this.
Please poke me offline if that doesn't happen in the next week or so.

> If someone can confirm my analysis and tell me the direction of how to
> fix these things I would be willing to work on it (shouldn't be hard,
> maybe boring ;-).

cool - thanks,

grant



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Helge Deller wrote:
> AFAIK the firmware output only happens at 9600 baud (8N1) and you can't 
> change that.

Actually, I think one can. But I doubt HP is going to fix any firmware
bugs related to console speeds other than 9600.

Running 19200 was crashing A500 console/GSP last year. I finally
convinced the firmware team it was the same problem that happened
at 9600 (less frequently of course).
I haven't verfied it was fixed in new PDC.

grant



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Hi all,


 I'm running Apache 1.3.22 on an A180 box, kernel 2.4.16.  I have the 
"indexes" option turned on, and when I pull up a directory without an 
index.html a number of files are reported as zero length with a very long 
string of zeros.  Something like:

Canna-3.5b2-50.i386.rpm 07-Sep-2001 09:37 
0.000000000000000000000000000000000000000000M  

The files are not zero length if I use "ls".  I have tried tweaking various 
settings in httpd.conf to no avail.  Is this an Apache bug, parisc-linux bug, 
both, neither?  I have searched google and bugs.apache.org to no avail.  Any 
help appreciated....

Thanks,

 Paul.

P.S. Those of you internal to HP can see the problem here:
http://zaphod.rose.hp.com/LinuxCOE/RedHat/redhat-7.2-en/os/i386/RedHat/RPMS/







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Hi,

is there anyone who has a working Java Runtime Environment?
Or is there a chance to get one at the moment?

And what about ZOPE?
And how could I use PyApache on my Hp 712/60?
If I wanna compile with apxs there are many failures did anyone =
suceeded?

cya,
Tilo

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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>is there anyone who has a working Java =
Runtime=20
Environment?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Or is there a chance to get one at the=20
moment?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>And what about ZOPE?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>And how could I use PyApache on my Hp=20
712/60?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>If I wanna compile with apxs there are =
many=20
failures did anyone suceeded?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>cya,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Tilo</FONT></DIV></BODY></HTML>

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Paul Telford wrote:
>  I'm running Apache 1.3.22 on an A180 box, kernel 2.4.16.  I have the 
> "indexes" option turned on, and when I pull up a directory without an 
> index.html a number of files are reported as zero length with a very long 
> string of zeros.  Something like:
> 
> Canna-3.5b2-50.i386.rpm 07-Sep-2001 09:37 
> 0.000000000000000000000000000000000000000000M  

I've seen this before - perhaps when I first got
gsyprf10 or gsyperf11 up and running?
Anyone else remember more?

I think the workaround was to use a different method
of displaying the files. We weren't able to reproduce
the bug on a different machine.

grant



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On Thu, Feb 07, 2002 at 09:22:40AM -0700, Grant Grundler wrote:
> =?ISO-8859-1?Q?Bj=F8rn_Djupvik?= wrote:
> > Hi, I am considering migrating a few boxes from hp-ux to
> > parisc-linux as I have done this successfully on a 712/100
> > already.. The boxes in question are D-class servers
> > (220,230,250,etc) and some of them have jurassic-era
> > (ancient) C2300 disk arrays attached to them, which I know
> > very little about.
> 
> 1) D-class is quite a different beast than 712.
>    Has anyone tried installing 0.9.3 on a D-class?
>    Are all the interface cards you care about supported with
>    linux drivers?

I've installed 0.9.3 successfully on a D270.  Just needed the
ncr53c8xx=burst:3 thing.

I can't comment on the disk array thing, though.

-- 
Michael Wood <mwood@its.uct.ac.za>



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On Thu, Feb 07, 2002 at 09:31:07AM -0700, Grant Grundler wrote:
> > - get/set_serial_info have to be enhanced for memory mapped ports
> > - setserial should be enhanced accordingly
> 
> If other non-intel architectures don't have a solution for this.
> My first thought was to assign fake port addresses.

Looks like most other architectures have their own code even when
using 16450 like UARTs (e.g. arch/mips/au1000/common/serial.c).
Especially set_serial_info is architecture dependent, because it just
doesn't make much sense to fiddle with irq and port settings on
parisc, does it? Faking port adresses could be a workaround, but it's
not clean as it might make the ports show up in /proc/ioports ...

But enhancing the test for doubly assigned ports to

      if ((rs_table[i].port == port) &&
          (rs_table[i].iomem_base == req->iomem_base))

might be ok. This code can be found in register_serial().

BTW, drivers/gsc/serial.c does no request_mem_region(). Is this in-
tentional?

> Do PCI serial cards also use MMIO?

I don't know.

> > - baud_base should be initialized correctly for other gsc based ports.
> 
> We'd have to dig a bit for documentation on this.
> Please poke me offline if that doesn't happen in the next week or so.

The hardball ers states a 7.3728MHz (== 16 * 460800) baud rate clock,
which confirms the output of my DMM. So we would need a table holding
the baud_base for each device?

Enrik
-- 
Enrik Berkhan                                         plan b. GmbH
                                                      Rppurrer Strae 4
+49-721-388582 (voice)                                76137 Karlsruhe
+49-721-388581 (fax)                                  Germany



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On Thursday 07 February 2002 11:42 pm, Grant Grundler wrote:
> I think the workaround was to use a different method
> of displaying the files. We weren't able to reproduce
> the bug on a different machine.


I can reproduce it reliably.  What (if anything) can I do to help debug the 
problem further?  


Thanks


 Paul.



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On Fri, Feb 08, 2002 at 09:15:52AM -0800, Paul Telford wrote:
> On Thursday 07 February 2002 11:42 pm, Grant Grundler wrote:
> > I think the workaround was to use a different method
> > of displaying the files. We weren't able to reproduce
> > the bug on a different machine.
> 
> 
> I can reproduce it reliably.  What (if anything) can I do to help debug the 
> problem further?  

<puts on apache maintainer's cap>
In the apache-dev package, there's /usr/sbin/apache.dbg which is an
unstripped binary you can use to debug problems like this.

-- 
Revolutions do not require corporate support.



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On Friday 08 February 2002 9:26 am, Matthew Wilcox wrote:
> <puts on apache maintainer's cap>
> In the apache-dev package, there's /usr/sbin/apache.dbg which is an
> unstripped binary you can use to debug problems like this.

I wasn't able to make much progress trying to debug, since my copy of the 
source didnt match up with apache.dbg.  So I used apt-get to get the latest 
source, recompiled and the problem is gone.  So maybe there is some 
incompatibility between my system and the one used to compile the binary .deb 
package...  anyway, problem solved, relatively painlessly.  Thanks for the 
help....


 Paul.



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--Apple-Mail-1-595528930
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Hi,

We tried to compile a 2.4.17-pa22 for B132 with serial console support.

Something weird happens when booting:
we cross compiled first using xgcc 3.0.2 (MacOSX -> hppa-linux), the 
kernel was loaded and then crashed first after the serial driver line 
was displayed, showing a couple of lines like:

Dumping stack from 0x20228000 to 0x2022ba40
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead.

Then after rebooting, it crashed almost immediately showing a lot of 
lines like before.

We then tried to cross compile using the latest xgcc from taggart on an 
x86 (x86-linux -> hppa-linux), and the same .config.
Symptoms were a bit different: the kernel was loaded, but nothing was 
displayed after the line 'if this is the last message you see...' and 
the box does not boot.

Cross compiling on both machines the same kernel configured for 712 
using serial console provided a functional kernel.

config file joined.


Any clue ?


Thibaut VARENE
PA/Linux ESIEE Team
http://www.esiee.fr/puffin


--Apple-Mail-1-595528930
Content-Disposition: attachment;
	filename=confb132cluster
Content-Transfer-Encoding: 7bit
Content-Type: application/octet-stream;
	x-unix-mode=0644;
	name="confb132cluster"

#
# Automatically generated make config: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# Processor type
#
# CONFIG_PA7100 is not set
# CONFIG_PA7200 is not set
CONFIG_PA7100LC=y
# CONFIG_PA8X00 is not set
CONFIG_PA11=y

#
# General options
#
# CONFIG_SMP is not set
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_KWDB is not set
# CONFIG_IOMMU_CCIO is not set
CONFIG_GSC=y
CONFIG_GSC_LASI=y
# CONFIG_GSC_WAX is not set
# CONFIG_EISA is not set
# CONFIG_ISA is not set
CONFIG_PCI=y
CONFIG_GSC_DINO=y
# CONFIG_PCI_LBA is not set
# CONFIG_IOSAPIC is not set
# CONFIG_IOMMU_SBA is not set
# CONFIG_SUPERIO is not set
CONFIG_PCI_NAMES=y

#
# General setup
#
# CONFIG_HOTPLUG is not set
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_SOM is not set
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
# CONFIG_NETLINK_DEV is not set
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_ARPD is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set

#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# SCSI support
#
CONFIG_SCSI=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_NCR53C406A is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
CONFIG_53C700_USE_CONSISTENT=y
# CONFIG_SCSI_NCR53C7xx is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
# CONFIG_SCSI_SYM53C8XX_IOMAPPED is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_LASI_82596 is not set
# CONFIG_SUNLANCE is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNLANCE is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_DE4X5 is not set
# CONFIG_DGRS is not set
# CONFIG_DM9102 is not set
# CONFIG_EEPRO100 is not set
# CONFIG_LNE390 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_8139TOO_PIO is not set
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_RHINE_MMIO is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Input core support
#
# CONFIG_INPUT is not set
# CONFIG_INPUT_KEYBDEV is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
# CONFIG_SERIAL_GSC is not set
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set

#
# Input core support is needed for gameports
#

#
# Input core support is needed for joysticks
#
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_JBD_DEBUG is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
# CONFIG_RAMFS is not set
# CONFIG_ISO9660_FS is not set
# CONFIG_JOLIET is not set
# CONFIG_ZISOFS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_INTERMEZZO_FS is not set
# CONFIG_NFS_FS is not set
# CONFIG_NFS_V3 is not set
# CONFIG_ROOT_NFS is not set
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
# CONFIG_SUNRPC is not set
# CONFIG_LOCKD is not set
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
# CONFIG_ZISOFS_FS is not set
# CONFIG_ZLIB_FS_INFLATE is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
# CONFIG_NLS is not set

#
# Console drivers
#

#
# Frame-buffer support
#
# CONFIG_FB is not set
# CONFIG_STI_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y

#
# Sound
#
# CONFIG_SOUND is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

--Apple-Mail-1-595528930--




From - Thu Nov 08 21:21:39 2018
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X-Mozilla-Keys:                                                                                 
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From: collver@linuxfreemail.com
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: serial breakout box
Date: Sat, 9 Feb 2002 09:53:36 -0800
Lines: 38
Approved: news@gmane.org
Message-ID: <20020209095335.A4426@glen.takilma.net>
References: <200201150347.g0F3lh129546@tpol.peak.org> <20020204104006.A6794@glen.takilma.net>
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Cc: Allen Brown <abrown@peak.org>,
	parisc-linux@lists.parisc-linux.org
To: lug@peak.org
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Xref: news.gmane.org gmane.linux.ports.parisc:13999

On Mon, Feb 04, 2002 at 10:40:07AM -0800, collver@linuxfreemail.com wrote:
> >>This is an Apollo 400 which has been upgraded to a 715T/50 (Trailways-50). 
> > 
> > Pin 7 is GND.  Pins 2 and 3 are the input and outputs, not necessarily
> > in that order.  Measure from 7 to 2.  Measure from 7 to 3.  One
> > of them will be close to 0V.  The other will be much higher.  I think
> > -10V or something like that.  The pin with the higher voltage is
> > the output.
> > 
> > Do the same thing on the other system also using the 25 pin connector.
> > Then make sure you are not connecting the output to the output.
> 
> It turns out the Apollo 400 has a funky serial pinout.
> I obtained a breakout box and when I find the time, I will experiment with
> this strange serial port.

The Apollo 400 and the mouse are both "DCE".  I can measure -11.44V on the
Apollo's pin 2 and on the PC's pin 3.  I have verified that the mouse will
speak to my PC using only txd, rxd, and rts.  I can also log into the
Apollo from the PC using only txd, rxd, and rts.

It is obvious the I need to connect the mouse's pins 2 and 3, to the
Apollo's pins 3 and 2.  The rest is unsure.  I have tried many combinations
of wiring, and I just haven't been able to get the mouse to work.

To connect two DCE devices, some suggest a "tail circuit cable".  It seems
overkill to me since the mouse only uses a few pins.  I have noticed that
the Apollo doesn't ever show voltage on the "carrier detect" pin.  I have
also noticed that the Apollo voltage is -11.44 volts, and the PC voltage is
-12.15 volts.

Can anyone give me tips for getting this mouse to work?

Thanks,

Ben



From - Thu Nov 08 21:21:39 2018
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X-Mozilla-Keys:                                                                                 
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] touching several drivers
Date: Sat, 9 Feb 2002 20:58:42 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:14000

Hey, I've jut produced ftp.parisc-linux.org/patches/random-cleanups.diff
It fixes a number of things that have been bugging me on the C360 for
a while.

I touch:

 arch/parisc/kernel/drivers.c  |   59 ++++++++++++++++++++----------------------
 drivers/gsc/dino.c            |   26 ++++++++----------
 drivers/gsc/gsc.c             |    8 -----
 drivers/gsc/serial.c          |   18 ++++--------
 drivers/parport/parport_gsc.c |   16 -----------
 drivers/scsi/lasi700.c        |    8 -----
 drivers/sound/harmony.c       |    4 --

so if anyone wants to object, now's a good time to do it.  If anyone has
the urge, testing it on other machines would be worthwhile.  I've been
careful to consider other machines, but thinking is no substitute for
actually trying the code, and I touched some interesting parts of
device discovery.

Changelog:

 * Stop checking hversion_rev in match_device.  All drivers specify
   HVERSION_REV_ANY_ID anyway.
 * Don't print a warning if a driver declines to claim a device.  That's
   allowed.
 * Revert get_node_path to its previous form.  I found another bug in
   doing the inventory and adding another hack would have been silly.
 * Neaten up walk_native_bus a little, I have moral objections to the
   previous code.
 * Fix a bug in fixup_child_irqs.  If the device had no children, it
   would assign irqs to siblings instead, which led to the bogus serial
   port being detected on Cujo.
 * A few more Dino -> Cujo changes.  Print a little more information when
   we get a stuck interrupt.
 * Make the GSC serial driver return silently for Cujo's serial port (if
   it's unassigned).  Improve the error message and make it not dependent
   on any CONFIG options.
 * Clean up a comment and remove the A180's serial port from the
   serial1_tbl.

 * Call request_mem_region for each successful device/driver claim.
 * Make gsc_common_irqsetup a little more sensible about what regions
   it claims.
 * Delete request/release regions from lasi700.c, parport_gsc.c, harmony.c

-- 
Revolutions do not require corporate support.



From - Thu Nov 08 21:21:39 2018
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From: Greg Ingram <ingram@symsys.com>
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Subject: [parisc-linux] lp0 kablooie
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Xref: news.gmane.org gmane.linux.ports.parisc:14001

Writing data from my C100 to /dev/lp0 makes the kernel go kablooie.  It's
the kernel from the recent (0.9.3?) iso.  Known problem?  Any more info I
could supply that would help?  I've appended everything on the console
from the crash, through the power cycle, to mounting disks again.  

- Greg

# echo >/dev/lp0

Dumping Stack from 15608000 to 15608700:
8000 00000000 00000100 00000000 00000001 1029f180 00000001 00000000 ffffffff
8020 00000008 00000000 00000000 17ff1120 00000000 00000000 ffffffff 1029c400
8040 157b403c 0003bc02 10334000 150dc000 17ff1120 102a14b8 00000000 00000012
8060 00000000 00000000 80000000 000000e7 000000e7 00000000 000000e7 000000e7
8080 00000001 105d0000 105d0000 00000000 00000000 150dc000 15608098 15608098
80a0 00000000 1029e46c 156080a8 156080a8 00000000 00000000 00000000 00000000
80c0 00000000 00000000 00000000 00000000 00000000 00000000 0003b848 15608000
80e0 1011cb2c 00000008 00000010 00000001 00000003 0000232d 00000008 0000045d
8100 000000a2 000002d9 00000000 0000001a 00000095 00000000 80000000 00000000
8120 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000001
8140 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
81a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
81c0 fffffeff 00000000 fffffeff 00000000 102a01a0 ffffffff ffffffff ffffffff
81e0 ffffffff ffffffff ffffffff 00800000 05000000 00000000 ffffffff ffffffff
8200 ffffffff 000007b3 000007b3 00000400 00000400 ffffffff ffffffff ffffffff
8220 ffffffff ffffffff ffffffff 00006261 73680000 72000000 00000000 00000000
8240 00000000 17ffe000 00000000 00000000 00000000 00000000 00000000 000c3c8c
8260 4011bd73 00000080 00000020 00000002 00000000 00000008 000938e0 0000003d
8280 00000000 000d5f08 ffffffff 00000000 ffffffff 00000000 00000000 000b9f04
82a0 00017800 401ef190 00000004 40174e3c 4011bd2c 00000000 00000001 000c8408
82c0 00000001 000b9f04 0000000a 000003c1 faf00980 40174e47 00000000 00000000
82e0 00000000 00000000 00000000 00000000 00000000 00000000 1029f010 00000001
8300 00000001 1014c12c 00000002 103308bc 105d0000 102a4600 102a4060 00000002
8320 0000004d 00000000 000000f0 1029f010 00000001 102a1010 1028c010 102bb810
8340 1028c010 1013a540 102cd298 102a1010 00000000 00000000 100a5000 102a4600
8360 00000000 00000002 00000000 000000f0 1029f010 100a5000 102a4600 00000000
8380 00000002 00000000 00000000 00000001 00000001 66666667 00000001 ffffffff
83a0 3fe00000 00000000 412e8480 00000000 0004000e 100aa120 ffffff05 00000001
83c0 1028c010 1013a698 100a9000 102a1ed0 00000000 00000000 0000035b 0000035b
83e0 00000000 0000035b 0000035b 0000035b 0000035b 0000035b 0000035b 0000035b
8400 0008f497 0008f49b 90569779 0000004d 0000000a 15608940 10106cf0 0000001c
8420 0f941200 0000035b 000da000 1038a240 fff00000 40000000 00000000 00000000
8440 100401e0 10041040 1006d0c0 00000000 00000000 00000000 15608454 00000000
8460 00000000 00000000 00000000 00000000 00000000 00000000 00000001 00000004
8480 f7025555 00000006 73746172 74005555 55550000 00000000 00000000 00000000
84a0 54025555 000cd5a0 cfcfcfcf 10107750 55555555 cfcfcfcf cfcfcfcf 55555555
84c0 40028544 000193a7 40174e3c 4011bd2c 00000000 faf00c80 000bfde6 00000001
84e0 000c01e6 401f7190 00039e96 10107f80 faf00288 00036248 00036248 00002000
8500 00000003 00000001 faf006c0 faf006c0 401ef190 401ef190 00000000 00000000
8520 000c005e 00000000 00000000 1013aa7c 401ea3f0 00000001 000c8408 00000001
8540 000da0c8 10041040 00000000 17fff480 10041040 00000000 17fff480 00000080
8560 00000000 00000522 3a7721d9 1013b0f4 3a7585ba 00000000 3a7585ba 00000000
8580 ffffffff 00000000 000bff04 000d5f08 00000000 00000001 00093000 401ef190
85a0 000c8408 00000001 ffffffea 17fff480 00000b01 00000000 3c48490f 00000000
85c0 17fff4e0 00000001 fffffff7 10041040 15608510 00000008 49261604 00000000
85e0 15109da0 00000000 00000000 101ae23c 00094800 000c3704 00000003 15608510
8600 102b1744 102b1744 00000001 00000b01 00000003 000caf08 000b9f04 100a5000
8620 000001b6 000001b6 00000b01 101ae0c0 00001000 17ff1120 00001000 17ffebf8
8640 00000000 00000001 102b1744 000c8408 00000040 102b1748 00000000 000bff04
8660 00000000 0000003d 000938e0 1013a698 0000000f 0000035b 000da000 15608258
8680 15138c80 17fff480 ffffffeb ffffffeb 100a5005 00000003 0026aae2 00000000
86a0 00000000 00000000 00000000 101adfc0 00000000 100a5000 15608590 00000b02
86c0 00000000 10037260 00000000 15138c80 17fff480 00000005 00000cbd 00000a31
86e0 17ff113c 15608258 0011131a 10164ffc 000b9f04 15109e20 10037260 00000000

Kernel Fault: Code=26 regs=15608700 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111
r0-3	 00000000 1029c010 101adfc0 000000ff
r4-7	 00000000 102b1744 00000000 00000000
r8-11	 00000000 102b1010 000c8408 1504d000
r12-15	 105d9260 00000000 102b1010 000c0326
r16-19	 00000000 000b9f04 00017800 00000000
r20-23	 00002801 0000008a 1018f034 17fff4a0
r24-27	 ffd02801 ffffffd0 0000008a 1028c010
r28-31	 000001f4 000003c1 15608700 1018bc58
sr0-3	 00000000 0000035b 00000000 0000035b
sr4-7	 00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1010d09c 1010d0a0
 IIR: 0e601096    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 15608000 CR31: 10338000
 ORIG_R28: 00000000

[ power cycle ]

Firmware Version  1.2

Duplex Console IO Dependent Code (IODC) revision 0

------------------------------------------------------------------------------
   (c) Copyright 1990-1996, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------

      0      100  Mhz   Active                 Functional          256 KB

  Central Bus Speed (in mhz)  :        100  
  Available Memory (bytes)    :  134217728  
  Good Memory Required (bytes):   26447872  


   Primary boot path:    core.LAN.0.0.0.0.0.0
   Alternate boot path:  core.FWSCSI.6.0
   Console path:         GRAPHICS3
   Keyboard path:        core.PS2


Searching for device(s) with bootable media
This may take several minutes.

To discontinue search, press any key (termination may not be immediate).


   Path Number      Device Path                   Device Type and Utilities
---------------------------------------------------------------------------
   P0               core.FWSCSI.6.0               SEAGATE ST32430W             
                                                   IPL
   P1               core.SCSI.0.0                 SEAGATE ST11200N SUN1.05     
                                                   IPL
   P2               core.LAN.192.168.1.64.3.254   192.168.1.64                 
                                                   IPL



Enter Path Number or Device Path to continue boot sequence.  Enter NO to go
to main menu.
> p1
Interact with IPL (Y or N)?> n

Booting... 
Boot IO Dependent Code (IODC) revision 0


HARD Booted.
palo ipl 0.96 root@smallone Sun Nov 11 23:23:30 UTC 2001

Partition Start(MB) End(MB) Id Type
1               1      32   f0 Palo
2              33     161   82 swap
3             162    1004   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 3122078 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently  used by firmware (serial).

Command line for kernel: 'root=/dev/sdb3 HOME=/ console=ttyS0 TERM=vt102'
Selected kernel: /boot/vmlinux from partition 3
Opening /boot/vmlinux
Opening /boot/vmlinux-2.4.9-32
ELF32 executable
Entry 00100000 first 00100000 n 6
Segment 0 load 00100000 size 1618208 mediaptr 0x1000
Segment 1 load 0028c000 size 287728 mediaptr 0x18d000
Segment 2 load 002d4000 size 379072 mediaptr 0x1d4000
Segment 3 load 00334000 size 8192 mediaptr 0x231000
Segment 4 load 00338000 size 32768 mediaptr 0x233000
Segment 5 load 003750e8 size 83184 mediaptr 0x23b0e8
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.9-32 (root@paer) (gcc version 3.0.2 (Debian)) #1 Fri Nov 30 19:36:30 MST 2001
FP[0] enabled: Rev 1 Model 11
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model	00005920 00000481 00000000 00000002 782482ee 100000f0 00000004 0000008a 0000008a
vers	0000000d
cpuid	0000016d
CPUID	vers 11 rev 13
model	9000/777/C100
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
LED display at f0190001 registered
Kernel command line: root=/dev/sdb3 HOME=/ console=ttyS0 TERM=vt102
Console: colour dummy device 160x64
Calibrating delay loop... 99.73 BogoMIPS
Memory: 126200k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0x7, 0xb
2. SkyHawk 100/120 FW-SCSI (4) at 0xf5f8c000 [8/12], versions 0x1f, 0x0, 0x89
3. Raven T' Core BA (11) at 0xffd00000 [8/16], versions 0x32, 0x0, 0x81,  additional addresses: 0xffc00000 
4. Raven T' Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x32, 0x0, 0x74,  additional addresses: 0xffd03000 
5. Raven T' Audio (10) at 0xffd04000 [8/16/1], versions 0x32, 0x0, 0x7b
6. Raven T' Lasi Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x32, 0x0, 0x8c
7. Raven T' Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x32, 0x0, 0x82
8. Raven T' Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x32, 0x0, 0x8a
9. Raven T' Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x32, 0x0, 0x84
10. Raven T' Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x32, 0x0, 0x84
11. Raven T' Core PC Floppy (10) at 0xffd0a000 [8/16/10], versions 0x32, 0x0, 0x83
12. Raven T' Wax BA (11) at 0xffe00000 [8/20], versions 0x1e, 0x0, 0x8e,  additional addresses: 0xffe06000 
13. Raven T' Wax HIL (10) at 0xffe01000 [8/20/1], versions 0x1e, 0x0, 0x73
14. Raven T' Wax RS-232 (10) at 0xffe02000 [8/20/2], versions 0x1e, 0x0, 0x8c
15. Raven T' Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x1e, 0x0, 0x90,  additional addresses: 0xf4000000 
16. U2-IOA BC GSC+ Port (7) at 0xf5fbf000 [8/63], versions 0x501, 0x1, 0xc
17. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0x7, 0xb
18. Coral SGC Graphics (10) at 0xf6000000 [10/20], versions 0x4, 0x0, 0x77
19. Raven 100 T' (0) at 0xfffa0000 [32], versions 0x592, 0x0, 0x4
20. SkyHawk 100/120 (1) at 0xfffb1000 [49], versions 0x49, 0x0, 0x9
CPU(s): 1 x PA7200 (PCX-T') at 100.000000 MHz
ccio found U2 at 0xfff88000
io_io_low: 0xf5f80000
21. SkyHawk 100/120 FW-SCSI (4) at 0xf5f8c000 [8/12], versions 0x1f, 0x0, 0x89
22. Raven T' Core BA (11) at 0xffd00000 [8/16], versions 0x32, 0x0, 0x81,  additional addresses: 0xffc00000 
23. Raven T' Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x32, 0x0, 0x74,  additional addresses: 0xffd03000 
24. Raven T' Audio (10) at 0xffd04000 [8/16/1], versions 0x32, 0x0, 0x7b
25. Raven T' Lasi Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x32, 0x0, 0x8c
26. Raven T' Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x32, 0x0, 0x82
27. Raven T' Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x32, 0x0, 0x8a
28. Raven T' Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x32, 0x0, 0x84
29. Raven T' Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x32, 0x0, 0x84
30. Raven T' Core PC Floppy (10) at 0xffd0a000 [8/16/10], versions 0x32, 0x0, 0x83
31. Raven T' Wax BA (11) at 0xffe00000 [8/20], versions 0x1e, 0x0, 0x8e,  additional addresses: 0xffe06000 
32. Raven T' Wax HIL (10) at 0xffe01000 [8/20/1], versions 0x1e, 0x0, 0x73
33. Raven T' Wax RS-232 (10) at 0xffe02000 [8/20/2], versions 0x1e, 0x0, 0x8c
34. Raven T' Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x1e, 0x0, 0x90,  additional addresses: 0xf4000000 
35. U2-IOA BC GSC+ Port (7) at 0xf5fbf000 [8/63], versions 0x501, 0x1, 0xc
ccio found U2 at 0xfff8a000
io_io_low: 0xf5fc0000
36. Coral SGC Graphics (10) at 0xf6000000 [10/20], versions 0x4, 0x0, 0x77
37. U2-IOA BC GSC+ Port (7) at 0xf5fff000 [10/63], versions 0x501, 0x1, 0xc
Lasi version 0 at 0xffd00000 found.
Wax at 0xffe00000 found.
Wax: HIL Keyboard-NMI registered.
Wax EISA Adapter found at 0xfc000000
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
STI byte mode ROM at f6000000, hpa=f6000000
STI byte mode ROM, id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071A
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio: 0xf6100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xffd05800 (irq = 90) is a 16550A
ttyS01 at iomem 0xffe02800 (irq = 121) is a 16550A
Lasi PS/2 receive buffer timeout
PS/2 keyboard port at 0xffd08000 (irq 69) found, no device attached.
Lasi PS/2 transmit buffer timeout
PS/2 psaux port at 0xffd08100 (irq 69) found, no device attached.
Found HIL at 0xffe01000, IRQ 126
HIL: no keyboard present.
Warning : device (10, 0x1e, 0x0, 0x73) NOT claimed by HIL
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xffd07000, IRQ 87
eth0: 82596 at 0xffd07000, 08 00 09 E8 83 2B IRQ 87.
82596.c $Revision: 1.26 $
SCSI subsystem driver Revision: 1.00
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3b-20010512
  Vendor: SEAGATE   Model: ST32430W          Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 02
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
scsi1: (0:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST11200N SUN1.05  Rev: 8358
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
Attached scsi disk sdb at scsi1, channel 0, id 0, lun 0
ncr53c720-0-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
Partition check:
 sda: unknown partition table
scsi1: (0:0) Enabling Tag Command Queuing
SCSI device sdb: 2059140 512-byte hdwr sectors (1054 MB)
 sdb: sdb1 sdb2 sdb3
Lasi Harmony Audio rev. 33 at 0xffd04000, using IRQ 82
sticonsole_init: searching for STI ROMs
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
INIT: version 2.84 booting




From - Thu Nov 08 21:21:39 2018
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From - Thu Nov 08 21:21:39 2018
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Subject: Re: [parisc-linux] kernel-2.4.17-pa22 boot problem B132L+ with serial console
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Thibaut VARENE wrote:
...
> Cross compiling on both machines the same kernel configured for 712 
> using serial console provided a functional kernel.

Does the B132 have a tulip card installed?

...
> CONFIG_TULIP=y
> # CONFIG_TULIP_MWI is not set
> CONFIG_TULIP_MMIO=y

IIRC, I've tried TULIP_MMIO and I don't think it worked. I tried this
out a few monthes back and left it disabled in my .config files.
I'm very certain CONFIG_TULIP_MWI didn't work. Slightly less
certain about TULIP_MMIO not working.

grant



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Enrik Berkhan wrote:
> But enhancing the test for doubly assigned ports to
> 
>       if ((rs_table[i].port == port) &&
>           (rs_table[i].iomem_base == req->iomem_base))
> 
> might be ok. This code can be found in register_serial().

Yeah - you are right.

> BTW, drivers/gsc/serial.c does no request_mem_region(). Is this in-
> tentional?

probably. Check if an entry for serial exists in /prc/iomem.
At one point, the device discover code was changed to automatically
do the request_mem_region() devics firmware told us about.

> The hardball ers states a 7.3728MHz (== 16 * 460800) baud rate clock,
> which confirms the output of my DMM. So we would need a table holding
> the baud_base for each device?

Dunno. We might given different generations of HW.

grant



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On Sat, Feb 09, 2002 at 11:50:20PM -0700, Grant Grundler wrote:
> Enrik Berkhan wrote:
> > BTW, drivers/gsc/serial.c does no request_mem_region(). Is this in-
> > tentional?
> 
> probably. Check if an entry for serial exists in /prc/iomem.
> At one point, the device discover code was changed to automatically
> do the request_mem_region() devics firmware told us about.

Where `one point' == `last night' :-)

I'm not quite sure about the way I've done it -- I might set it up to
always claim rather than only claim on device detection, and take the
name from the hardware database rather than the driver.

I suspect I've broken module unload with the current code, and I need
a release_mem_region on deregistration... investigating now.

-- 
Revolutions do not require corporate support.



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From: Bob Radvanovsky <rsradvan@unixworks.net>
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Subject: [parisc-linux] [REQUEST] PS/2 keyboard pinouts?
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I recently picked up about 30+ 712 workstations, some of which will be
converted to the Debian PA/Linux operating system.  I plan on importing
the clusting software, Eddie, over to Debian and turning about 12+ of
these 712 workstations into a gigantic Linux cluster.

Unfortunately, I don't have 30+ keyboards for all of these workstations. 
Having noticed that there was one gent (Andrew Shugg) who mentioned about
a PS/2 loopback connector, I have tried in desparation to find one premade
at several computer specialty shops, including Radio Shack.  I used to
remember when Radio Shack *did* have connectors that you could make your
own style or pinout connector.	Nowadays, you just get a snot-nosed kid
who states "Whatever we have is whatever we have, dude.......whatever."
(or something like that).  I *CANNOT* seem to find any PS/2 connectors
ONLY, and for that matter, cannot seem to find documentation on the
712/60, 712/80 and 712/100 workstations keyboard connector pinout, and
which pins will enable me to bypass the IPL problem of "no keyboard, no
bootup" problem.

Anyone got any ideas on where I can get (1) pin descriptions as to how to
bypass the "no keyboard, no bootup" problem on most of the HP
workstations, and (2) where I might be able to get some PS/2 connector to
make my own "headless" Linux cluster configuration.

Thanks in advance.

Bob Radvanovsky
kempyuter kensulting services, inc.
rsradvan@k2si.com

-ad nauseum: Also... anyone know of a *good* and *FREE* Linux clustering
software that is efficient enough to run?  So far, the best one that I can
find that is fairly configurable, and robust enough is "Eddie".  But the
only drawback is that it's interpretted and runs on a language called
"Erlang".  If anyone has had experience in this matter with HP
workstations, running Debian PA/Linux, under a clustering environment (in
a house that Jack built), I'd be very interested in hearing more...  ;)))




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Hi all,

Just a suggestion for ftp://ftp.parisc-linux.org/cvs/ dir:
put a monthly full cvs co linux-2.?.?-pa??.tar.gz
then a daily incremental update.

Would it not save disk space and network usage for each part?
And for tester as I am it would be easier to save daily changes without
being obliged to save a full co or update.

(I just thought to that after the install of incremental patch on the
main linux tree)

Joel



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Le dimanche 10 f=E9vrier 2002, =E0 08:48 , Bob Radvanovsky a =E9crit :

> I recently picked up about 30+ 712 workstations, some of which will be
> converted to the Debian PA/Linux operating system.  I plan on =
importing
> the clusting software, Eddie, over to Debian and turning about 12+ of
> these 712 workstations into a gigantic Linux cluster.
>
> Unfortunately, I don't have 30+ keyboards for all of these =
workstations.
>
> Anyone got any ideas on where I can get (1) pin descriptions as to how=20=

> to
> bypass the "no keyboard, no bootup" problem on most of the HP
> workstations, and (2) where I might be able to get some PS/2 connector=20=

> to
> make my own "headless" Linux cluster configuration.

Well, we had the same problem here, when we wanted to 'clusterize' a=20
bunch of 712.

You can find a solution by switching your 712 to serial console,=20
following the instructions found at:
http://lists.parisc-linux.org/hypermail/parisc-linux/0423.html

You need HP/UX ISL for that.

If you don't have it, you can download the following lifimage:
http://cvs.parisc-linux.org/build-tools/uxbootlf

and then using bootp with it...


Thibaut VARENE
PA/Linux ESIEE Team
http://www.esiee.fr/puffin




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 I recently purchased an HP 9000/785/B1000. I tried to use the
pasrisc*.iso as I've been using on my 712/*'s, however there appears to be
issues using 32-bit as default. Setting up a serial console for this
machine will not be a trivial task, due to its location. Is there anyone
on the list that has such a beast, I could discuss installation with?
 My next attempt will be to setup an install using rbootd, however it
appears I will require serial console access.

 Kowtow,

--
Yashy

p.s. Thanks for all your work on parisc-linux.
p.p.s I am in the Ottawa area, and have cheap used HP's if anyone is
looking, drop me a note offlist with the machine(s) you are looking for.




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On Sun, Feb 10, 2002 at 06:53:54PM -0500, Yasholomew Yashinski wrote:
>  I recently purchased an HP 9000/785/B1000. I tried to use the
> pasrisc*.iso as I've been using on my 712/*'s, however there appears to be
> issues using 32-bit as default. Setting up a serial console for this
> machine will not be a trivial task, due to its location. Is there anyone

Hmm.. this machine should work in both 32 and 64 bit mode.  I suspect
we don't currently support the graphics card in this machine (I assume
it has the same problems as the C3000... helge?)

> on the list that has such a beast, I could discuss installation with?
>  My next attempt will be to setup an install using rbootd, however it
> appears I will require serial console access.

rbootd is for much older machines (715/Scorpio and earlier).  Everything
since the 712 uses bootp (or dhcp) and tftp.

-- 
Revolutions do not require corporate support.



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> >  I recently purchased an HP 9000/785/B1000. I tried to use the
> > pasrisc*.iso as I've been using on my 712/*'s, however there appears to be
> > issues using 32-bit as default. Setting up a serial console for this
> > machine will not be a trivial task, due to its location. Is there anyone
>
> Hmm.. this machine should work in both 32 and 64 bit mode.  I suspect
> we don't currently support the graphics card in this machine (I assume
> it has the same problems as the C3000... helge?)

 It appears so. The framebuffer is A4977a Vis EG-PCI.

 If it helps, the errors I receive on the front panel LCD are:
FLT CBF4: SYS BD
bad OS HPMC cksm
FLT CBFC: SYS BD
OS HPMC br err
FLT 500B: SYS BD
bus timeout

> > on the list that has such a beast, I could discuss installation with?
> >  My next attempt will be to setup an install using rbootd, however it
> > appears I will require serial console access.
>
> rbootd is for much older machines (715/Scorpio and earlier).  Everything
> since the 712 uses bootp (or dhcp) and tftp.

 Thanks. It appears I should wait until my framebuffer is supported.

 Cheers,

--
Yashy




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Greg Ingram wrote:

> Writing data from my C100 to /dev/lp0 makes the kernel go kablooie.  It's
> the kernel from the recent (0.9.3?) iso.  Known problem?  Any more info I
> could supply that would help?  I've appended everything on the console
> from the crash, through the power cycle, to mounting disks again.  


Hrm, not knowing what the exact problem is, i'd say its worth trying the latest cvs kernel
(the debian-hppa-0.9.3 kernel is 2.4.9, IIRC)

Then, if it still gives an error, submit a bug report or somthing ;)

--jbit


_________________________________________________________
Do You Yahoo!?
Get your free @yahoo.com address at http://mail.yahoo.com




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Bob Radvanovsky wrote:
> Unfortunately, I don't have 30+ keyboards for all of these workstations. 

Here is the original posting for serial console on 712.

http://lists.parisc-linux.org/pipermail/parisc-linux/1999-December/008117.html

We should probably add this as a "How-To" someplace. Ideas on where?

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253



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Yasholomew Yashinski wrote:
> 
>  I recently purchased an HP 9000/785/B1000. I tried to use the
> pasrisc*.iso as I've been using on my 712/*'s, however there appears to be
> issues using 32-bit as default.

32-bit kernel is preferred. B1000 can run both 32 or 64-bit kernels.

> Setting up a serial console for this
> machine will not be a trivial task, due to its location.

Is the machine difficult to access or is a *second* machine
with an available serial port hard to find? No old laptops about?

> Is there anyone
> on the list that has such a beast, I could discuss installation with?

B1000 is basically a slower (CPU), "smaller" (fewer DIMM/PCI slots) C3000.
Several people on list (including myself) have C3000.

>  My next attempt will be to setup an install using rbootd, however it
> appears I will require serial console access.

Yes.  Viz-EG PCI *may* get some support pretty soon. A few people are
playing with it right now.

But don't expect a new ISO anytime soon with Viz-EG PCI support.
Install 0.9.3, apt-get update/dist-upgrade,  and pull a kernel from
ftp.parisc-linux.org/kernels/32. Then you'll ready to grab bits
as soon as it works.


grant



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Xref: news.gmane.org gmane.linux.ports.parisc:14015

On Monday 11 February 2002 03:44, Yasholomew Yashinski wrote:
> > >  I recently purchased an HP 9000/785/B1000. I tried to use the
> > > pasrisc*.iso as I've been using on my 712/*'s, however there appears to
> > > be issues using 32-bit as default. Setting up a serial console for this
> > > machine will not be a trivial task, due to its location. Is there
> > > anyone
> >
> > Hmm.. this machine should work in both 32 and 64 bit mode.  I suspect
> > we don't currently support the graphics card in this machine (I assume
> > it has the same problems as the C3000... helge?)
>
>  It appears so. The framebuffer is A4977a Vis EG-PCI.
>
>  If it helps, the errors I receive on the front panel LCD are:
> FLT CBF4: SYS BD
> bad OS HPMC cksm
> FLT CBFC: SYS BD
> OS HPMC br err
> FLT 500B: SYS BD
> bus timeout

Yes, that's exactly the same error I get w/ c3000 and VisEG PCI.

Helge





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Hi all,

>>Unfortunately, I don't have 30+ keyboards for all of these workstations. 
>>
>
>Here is the original posting for serial console on 712.
>
>http://lists.parisc-linux.org/pipermail/parisc-linux/1999-December/008117.html
>
>We should probably add this as a "How-To" someplace. Ideas on where?
>
I'll add this into the Console section of my HOWTO!

By the way, at this moment, you can read:


          How can I change the boot console to serial on a 712?

Unfortunately, you can't. Although 712s are configured for in-house HP 
development to use serial console, this configuration isn't supported in 
the field. You have to use a graphics console for 712s but if you really 
want it, you have a tip in the PA/Linux mailing list archive 
<http://lists.parisc-linux.org/pipermail/parisc-linux/1999-December/008117.html>. 
In fact, why will we use this beautiful 712 with serial console when you 
can have X!

( That part is from Debbie, I'll fix it )

Thomas.





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Hi there

I have a 9000/725-100 with a EISA netcard.

When i boot the system the card is detected and reported as
a HP J2577 on ETH0. It also tells me that the 10Mbit plug is
used, which is correct.

At the moment the network configuration is turned off when
booting.

When i try to issue a  ifconfig eth0 172.16.154 netmask 255.255.0.0
the machine freezes completely. The keyboard and the power button
and the TOC button does not work.
I have to yank the powercord to kill it.

When i configure the loopback interface there are no problem.
When i configure the builtin ETH1 it reports a tranceiver problem.
I have no tranceiver for this machine.

Kernel is 2.4.17-20


Am i doing something wrong?

Greetings

Bent Wagner





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Subject: [parisc-linux] EISA NIC - HWP1850?
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I do not subscribe to this group, please respond via my e-mail address. 
NOTE: reverse the domain to get a valid e-mail address.

I have an EISA network card I'm trying to get working on a 715-100XC. 
It has a large "Intel" chip with the following information:

KU82596CA-33
L5182661
SZ717 C

The HP part number on the card is 25567-60003.  I've seen this card
referred to as "HWP1850".

If no-one has this card, I *may* be able to arrange a donation if we can
get a driver.

Bob



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I don't have any experience with HP-UX or PA-risc hardware, but I recently
inherited an abandoned HP D-class 9000 server.  I'm trying to get the
machine functional using Linux, since I don't have access to recent HP-UX,
and I use Debian Linux on x86.
What I've managed to do so far (with some trial and error):
remove the remote access management card
boot into the firmware and set the console to the onboard serial
boot into the CD I created from palinux-0.9.3.iso
partition and format a disk, get Linux installed and booting

So far so good, but I have a few questions:
My video card seems to be a:
Raven Opt. 2D Graphics (Goat) (10) at 0xf6000000 [10/12], version 0x12, 0x0,
0x77
What can I expect from it?  I've nerver used XF86 version 4 or an fb device,
and I haven't figured out the new config file format.  Will I be able to use
the the graphical console with a newer kernel?  Can I get X to use it?
Does anyone know if I can switch resolution/video mode from the firmware? 
I installed the 32-bit kernel, can I use a 64-bit kernel on this machine?
Should I checkout the latest kernel source from cvs and build that, or is
there some other version, or an image, I shoud use?  The kernel installed
with the CD doesn't seem to be SMP.

If anybody can volunteer answers to any of these questions, I'd really
appreciate it.  Also, great thanks to everyone who's put effort into pa-risc
linux, I'll get so much more out of this machine with it running Linux!

-Steve R 



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Bob Apodaca wrote:
> KU82596CA-33
> L5182661
> SZ717 C

Have you tried searching on google for this part #?
I believe the original project name was Apricot.
Anyway, I believe the NIC integrated in LASI is also 82596.

> The HP part number on the card is 25567-60003.  I've seen this card
> referred to as "HWP1850".
> 
> If no-one has this card, I *may* be able to arrange a donation if we can
> get a driver.


http://lhd.zdnet.com/db/dispdriver.php3?DISP?225

Do I still qualify?
[ I don't need the card...but I'm sure I could find someone who could..]

thanks,
grant



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"Roylance, Stephen D." wrote:
> So far so good, but I have a few questions:

So far, well done.

> My video card seems to be a:
> Raven Opt. 2D Graphics (Goat) (10) at 0xf6000000 [10/12], version 0x12, 0x0,
> 0x77
> What can I expect from it?  I've nerver used XF86 version 4 or an fb device,
> and I haven't figured out the new config file format.  Will I be able to use
> the the graphical console with a newer kernel?  Can I get X to use it?

I think so. This is the same gfx built into several of the regular
B/C class workstations.

> Does anyone know if I can switch resolution/video mode from the firmware? 

Not sure. I'm surprised to hear about a D with gfx in it.

> I installed the 32-bit kernel, can I use a 64-bit kernel on this machine?

Depends on cpu type. If it's a PA2.0 CPU (ie PA-8xxx), then yes.
See /proc/cpuinfo and/or check console output at boot time.

> Should I checkout the latest kernel source from cvs and build that, or is
> there some other version, or an image, I shoud use?  The kernel installed
> with the CD doesn't seem to be SMP.

Newer kernels are on ftp://ftp.parisc-linux.org/kernels/

grant



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From: Arnaud.ATOCH@oecd.org
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Subject: [parisc-linux] $$divU undefined reference
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First thanks for your great port.

I'm trying to compile sqlrelay http://www.firstworks.com/sqlrelay on a 0.9.3
HP 712 box with 2.4.16 kernel and deb packages up-to-date.

I got the following linking error message :

ecodev01:/tmp/rudiments-0.23/src# ld -G -o ../lib/librudiments.so.0.23
daemonprocess.o signalclasses.o commandline.o server.o client.o
semaphoreset.o sharedmemory.o randomnumber.o regularexpression.o text.o
datetime.o permissions.o -lc -lm -ll
server.o: In function `std::__default_alloc_template<true,
0>::_S_chunk_alloc(unsigned, int&)':
server.o(.gnu.linkonce.t._ZNSt24__default_alloc_templateILb1ELi0EE14_S_chunk
_allocEjRi+0xa0): undefined reference to `$$divU'

Some reading of the mailling list archive seems to indicate that this is an
already known issue.
I could not find if it has been fixed or not.

A quick grep -l divU /usr/lib reports :
/usr/lib/libapt-inst-libc6.2-3.so.1.0
/usr/lib/libapt-inst-libc6.2-3.so.1.0.0
/usr/lib/libapt-pkg-libc6.2-3.so.3.2
/usr/lib/libapt-pkg-libc6.2-3.so.3.2.0
/usr/lib/libBLT.2.4.so.8.0
/usr/lib/libBLT.2.4.so.8.2
/usr/lib/libBLT.2.4.so.8.3
/usr/lib/libc.a
/usr/lib/libdb-3.so
/usr/lib/libdb3.so.3
/usr/lib/libdb3.so.3.0.2
/usr/lib/libform.so.4
/usr/lib/libform.so.4.2
/usr/lib/libgimpprint.so.1
/usr/lib/libgimpprint.so.1.0.0
/usr/lib/libglib-1.2.so.0
/usr/lib/libglib-1.2.so.0.0.10
/usr/lib/libIDL-0.6.so.0
/usr/lib/libIDL-0.6.so.0.4.4
/usr/lib/libnetcdf_c++.so.3
/usr/lib/libnetcdf_c++.so.3.5.0
/usr/lib/libnetcdf.so.3
/usr/lib/libnetcdf.so.3.5.0
/usr/lib/libpcap.so.0
/usr/lib/libpcap.so.0.6.2
/usr/lib/libresolv.a
/usr/lib/libtiff.so.3
/usr/lib/libtiff.so.3.5.5

Should I understand that this divU function is used but I can not find which
library to link ? or are all these libs broken ?

Thanks.

Arnaud Atoch
OECD / OCDE
Paris
France



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On Tue, Feb 12, 2002 at 05:23:24PM +0100, Arnaud.ATOCH@oecd.org wrote:
> I'm trying to compile sqlrelay http://www.firstworks.com/sqlrelay on a 0.9.3
> HP 712 box with 2.4.16 kernel and deb packages up-to-date.
> 
> I got the following linking error message :
> 
> ecodev01:/tmp/rudiments-0.23/src# ld -G -o ../lib/librudiments.so.0.23
> daemonprocess.o signalclasses.o commandline.o server.o client.o
> semaphoreset.o sharedmemory.o randomnumber.o regularexpression.o text.o
> datetime.o permissions.o -lc -lm -ll
> server.o: In function `std::__default_alloc_template<true,
> 0>::_S_chunk_alloc(unsigned, int&)':
> server.o(.gnu.linkonce.t._ZNSt24__default_alloc_templateILb1ELi0EE14_S_chunk
> _allocEjRi+0xa0): undefined reference to `$$divU'

Don't use `ld' to link shared objects.  Link using gcc (if it's c code) or
g++ (if c++ code).  the compiler driver knows what extra libs to link in.

-- 
Revolutions do not require corporate support.



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> > Does anyone know if I can switch resolution/video mode from 
> the firmware? 
> 
> Not sure. I'm surprised to hear about a D with gfx in it.

Do you know how to do it on workstation  machines, maybe it works the same
way?
or can anyone point me to HW/tech docs for these machines?

> > I installed the 32-bit kernel, can I use a 64-bit kernel on 
> this machine?
> 
> Depends on cpu type. If it's a PA2.0 CPU (ie PA-8xxx), then yes.
> See /proc/cpuinfo and/or check console output at boot time.
> 
> > Should I checkout the latest kernel source from cvs and 
> build that, or is
> > there some other version, or an image, I shoud use?  The 
> kernel installed
> > with the CD doesn't seem to be SMP.
> 
> Newer kernels are on ftp://ftp.parisc-linux.org/kernels/

OK, looks like I have two PA8000's.  I apt-get upgraded to unstable and
d/l'ed the latest kernel tar.gz.  
I'm getting an error trying to compile a 64 bit SMP kernel:
make[1]: hppa64-linux-gcc: Command not found
on, I guess, the first call to the compiler when I do 'make dep';
my make is:
ii  make                3.79.1-12           The GNU version of the "make"
utility.
my gcc is:
ii  gcc                 3.0.4-2             The GNU C compiler.

Do I need to mess with a makefile so it knows what the right compiler is?
Do I need to get an different version of gcc for 64-bit hppa?

> grant

Thanks!
-Steve



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> Should I understand that this divU function is used but I can not find which
> library to link ? or are all these libs broken ?

It's always necessary to link against a static copy of libgcc to resolve
millicode references.  Linking using gcc, g++, or libtool will do this
automatically.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> OK, looks like I have two PA8000's.  I apt-get upgraded to unstable and
> d/l'ed the latest kernel tar.gz.  
> I'm getting an error trying to compile a 64 bit SMP kernel:
> make[1]: hppa64-linux-gcc: Command not found
> on, I guess, the first call to the compiler when I do 'make dep';
> my make is:
> ii  make                3.79.1-12           The GNU version of the "make"
> utility.
> my gcc is:
> ii  gcc                 3.0.4-2             The GNU C compiler.
> 
> Do I need to mess with a makefile so it knows what the right compiler is?
> Do I need to get an different version of gcc for 64-bit hppa?

I'd say forget about a 64-bit kernel and hppa64-linux-gcc.  There is no
point unless you have more than 4GB memory and need to run very large
applications.  The 32-bit system and tools are in much better shape.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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On Tue, Feb 12, 2002 at 11:39:40AM -0500, Roylance, Stephen D. wrote:
> OK, looks like I have two PA8000's.  I apt-get upgraded to unstable and
> d/l'ed the latest kernel tar.gz.  
> I'm getting an error trying to compile a 64 bit SMP kernel:
> make[1]: hppa64-linux-gcc: Command not found

Yeah, I don't think we have 64-bit compilers packaged properly yet.
you can get some 64-bit debs from:
http://ftp.parisc-linux.org/unofficial-debs/

though i still recommend running a 32-bit kernel unless you really need
a 64-bit kernel (eg have >4GB of ram or have firmware which only supports
64-bit mode.)

-- 
Revolutions do not require corporate support.



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On Sat, 9 Feb 2002, Grant Grundler wrote:

> Greg Ingram wrote:
> > 
> > Writing data from my C100 to /dev/lp0 makes the kernel go kablooie.  It's
> > the kernel from the recent (0.9.3?) iso.  Known problem?  Any more info I
> > could supply that would help?  I've appended everything on the console
> > from the crash, through the power cycle, to mounting disks again.  
> 
> Can you grab a newer kernel from ftp://ftp.parisc-linux.org/kernels/32/
> and try that?
> 
> 0.9.3 is just not worth chasing at this point.

Yikes!

apollos:~# uname -a
Linux apollos 2.4.17-pa23 #1 Sun Feb 10 09:24:11 MST 2002 parisc unknown
apollos:~# echo >/dev/lp0
lp0: compatibility mode
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x27eb0000 to 0x27eb4740:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x27ef8000 to 0x27eff180:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x27ef8000 to 0x27eff5c0:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

[ about 50 more screens full of similar, until: ]

Dumping Stack from 0x27f28000 to 0x27f28000:

Kernel Fault: Code=15 regs=17f28000 (Addr=27f20004)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000111100001110 Not tainted
r00-03  00000000 102f4810 10102494 27f20000
r04-07  102ae800 27f20000 27f27bc0 00000000
r08-11  00000000 10309810 103099e4 00000000
r12-15  103099e0 000c8408 1003a260 148f6000
r16-19  17f27bc0 000b9f04 00017800 00000000
r20-23  14e1c000 00011560 00000000 102f5810
r24-27  00000001 00000001 102f5ae0 102e2010
r28-31  00000030 0000d560 17f28000 101196c0
sr0-3   00000000 00000335 00000000 00000335
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10101e60 10101e64
 IIR: 0c681097    ISR: 00000000  IOR: 27f20004
 CPU:        0   CR30: 17eb4000 CR31: 10390000
 ORIG_R28: 868023a8







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> Don't use `ld' to link shared objects.  Link using gcc (if it's c code) or
> g++ (if c++ code).  the compiler driver knows what extra libs to link in.

Thanks for your help.

By the way python arithmic tests do not pass but id does not seems to pose
any problems yet.

Arnaud Atoch
OECD / OCDE
Paris
France



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> By the way python arithmic tests do not pass but id does not seems to pose
> any problems yet.

There are known issues with the tools when passing floats in indirect and
varargs calls.  This can bit in a simple printf call.  This might be why
the python arithmetic tests do not pass.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Le dimanche 10 f=E9vrier 2002, =E0 07:37 , Grant Grundler a =E9crit :

>
> IIRC, I've tried TULIP_MMIO and I don't think it worked. I tried this
> out a few monthes back and left it disabled in my .config files.
> I'm very certain CONFIG_TULIP_MWI didn't work. Slightly less
> certain about TULIP_MMIO not working.
>
Well we removed the option from the config, but the symptoms remained:
No output with x86 xc,
and the following output with MacOSX xgcc 3.0.2 (from start sequence to=20=

crash).

BTW, it looks a bit like the 'lp0 kablooie' problem...


Thibaut VARENE
PA/Linux ESIEE Team
http://www.esiee.fr/puffin



Firmware Version  6.1

Duplex Console IO Dependent Code (IODC) revision 1

Memory Test/Initialization Completed

=
--------------------------------------------------------------------------=
----
    (c) Copyright 1995-1998, Hewlett-Packard Company, All rights =
reserved
=
--------------------------------------------------------------------------=
----

   Processor   Speed            State           Coprocessor State  Cache=20=

Size
   ---------  --------   ---------------------  ----------------- =20
----------
       0      132 MHz    Active                 Functional          64 =
KB


   Available memory (bytes)    :  134217728
   Good memory required (bytes):  134217728

   Primary boot path:    FWSCSI.6.0
   Alternate boot path:  SESCSI.6.0
   Console path:         SERIAL_1.9600.8.none
   Keyboard path:        PS2

Processor is starting autoboot process.

To discontinue, press any key within 10 seconds.

10 seconds expired.
Proceeding...

Trying Primary Boot Path
------------------------

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 0.96 root@smallone Sun Nov 11 23:23:30 UTC 2001

Partition Start(MB) End(MB) Id Type
1               1     128   82 swap
2             129     144   f0 Palo
3             145    4094   83 ext2

PALO(F0) partition contains:
     0/vmlinux32 3122078 bytes @ 0x8118000

Information: No console specified on kernel command line. This is =
normal.
PALO will choose the console currently  used by firmware (serial).

Command line for kernel: 'root=3D/dev/sda3 HOME=3D/ console=3DttyS0 =
TERM=3Dvt102'
Selected kernel: /boot/vmlinux from partition 3
Opening /boot/vmlinux
Opening /boot/vmlinux-2.4.17-pa22-b132
ELF32 executable
Entry 001000f0 first 00100000 n 6
Segment 0 load 00100000 size 1150204 mediaptr 0x1000
Segment 1 load 0021a000 size 217016 mediaptr 0x11a000
Segment 2 load 00250000 size 302868 mediaptr 0x14f000
Segment 3 load 0029c000 size 8192 mediaptr 0x199000
Segment 4 load 002a0000 size 32768 mediaptr 0x19b000
Segment 5 load 002c2ddc size 61040 mediaptr 0x1a3ddc
Branching to kernel entry point 0x001000f0.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org



Linux version 2.4.17-pa22 (varenet@npyu.esiee.fr) (gcc version 3.0.2=20
20010829 (p
rerelease)) #4 Sun Feb 10 19:06:21 CET 2002
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005030 00000481 00000000 02020202 781ccde7 100000f0 00000004=20
000000ba 00
0000ba
vers  00000008
CPUID vers 15 rev 8 (0x000001e8)
model 9000/778/B132L+
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
LED display at f0190001 registered
Kernel command line: root=3D/dev/sda3 HOME=3D/ console=3DttyS0 =
TERM=3Dvt102
Console: colour dummy device 160x64
Calibrating delay loop... 87.85 BogoMIPS
Memory: 127064k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Searching for devices...
Found devices:
1. Merlin+ 132 Dino PS/2 Port (10) at 0xfff81000 [1], versions 0x22,=20
0x0, 0x96
2. Phantom PseudoBC GSC+ Port (7) at 0xffc00000 [8], versions 0x504,=20
0x0, 0x0
3. Dino PCI Bridge (13) at 0xfff80000 [8/0], versions 0x680, 0x3, 0xa, =20=

addition
al addresses: 0xf0800000
4. Merlin+ 132 Dino RS-232 (10) at 0xfff83000 [8/0/63], versions 0x22,=20=

0x0, 0x8c

5. Merlin+ 132 Core BA (11) at 0xffd00000 [8/16], versions 0x3e, 0x0,=20
0x81,  add
itional addresses: 0xffd0c000 0xffc00000
6. Merlin+ 132 Core Centronics (10) at 0xffd02000 [8/16/0], versions=20
0x3e, 0x0,
0x74,  additional addresses: 0xffd01000 0xffd03000
7. Merlin+ 132 Core Audio (10) at 0xffd04000 [8/16/1], versions 0x3e,=20
0x4, 0x7b
8. Merlin+ 132 Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x3e,=20=

0x0, 0x8c

9. Merlin+ 132 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x3e,=20
0x0, 0x82
10. Merlin+ 132 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions=20
0x3e, 0x0,
0x84
11. Merlin+ 132 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions=20
0x3e, 0x0,
0x84
12. Gecko GSC Core Graphics (10) at 0xf8000000 [8/24], versions 0x16,=20
0x0, 0x85,
   additional addresses: 0xf0011000
13. Merlin L2+ 132 (9000/778/B132L) (0) at 0xfffbe000 [62], versions=20
0x503, 0x0,
  0x4
14. Memory (1) at 0xfffbf000 [63], versions 0x61, 0x0, 0x9
CPU(s): 1 x PA7300LC (PCX-L2) at 132.000000 MHz
Lasi version 0 at 0xffd00000 found.
Dino version 3.1 found at 0xfff80000
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Enabled soft power switch (polling mode, io=3D0xf0140000).
Starting kswapd
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ=20
SERIAL_PCI en
abled
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x204c8000 to 0x204cc740:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x20218000 to 0x2021d4c0:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x20218000 to 0x2021d900:




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do { ... } while(0); do not need the trailing semicolon and may lead to
strange side effects. the following patch fixes it.

--timball

--snip--snip--snip--
diff -ruN linux-2.5.4/include/asm-parisc/pgalloc.h linux-2.5.4-fixed/include/asm-parisc/pgalloc.h
--- linux-2.5.4/include/asm-parisc/pgalloc.h    Sun Feb 10 20:50:16 2002
+++ linux-2.5.4-fixed/include/asm-parisc/pgalloc.h  Mon Feb 11 18:35:43 2002
@@ -120,7 +120,7 @@
 #define flush_tlb() do { \
         flush_data_tlb(); \
    flush_instruction_tlb(); \
-} while(0);
+} while(0)
 
 #define flush_tlb_all()    flush_tlb() /* XXX p[id]tlb */



-- 
	GPG key available on pgpkeys.mit.edu
pub  1024D/511FBD54 2001-07-23 Timothy Lu Hu Ball <timball@tux.org>
Key fingerprint = B579 29B0 F6C8 C7AA 3840  E053 FE02 BB97 511F BD54



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On Tue, Feb 12, 2002 at 10:55:41AM -0600, Greg Ingram wrote:
> On Sat, 9 Feb 2002, Grant Grundler wrote:
> > Greg Ingram wrote:
> > > 
> > > Writing data from my C100 to /dev/lp0 makes the kernel go kablooie.  It's
> > > the kernel from the recent (0.9.3?) iso.  Known problem?  Any more info I
> > > could supply that would help?  I've appended everything on the console
> > > from the crash, through the power cycle, to mounting disks again.  
> > 
> > Can you grab a newer kernel from ftp://ftp.parisc-linux.org/kernels/32/
> > and try that?
> > 
> > 0.9.3 is just not worth chasing at this point.
> 
> Yikes!
> 
> apollos:~# uname -a
> Linux apollos 2.4.17-pa23 #1 Sun Feb 10 09:24:11 MST 2002 parisc unknown
> apollos:~# echo >/dev/lp0
> lp0: compatibility mode

I've reproduced it on my B132. You could avoid the crash by disabling
CONFIG_PARPORT_PC. No idea how good parport works, but my B132 doesn't crash
anymore.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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On Tue, 12 Feb 2002, Thomas Bogendoerfer wrote:

> On Tue, Feb 12, 2002 at 10:55:41AM -0600, Greg Ingram wrote:
> > On Sat, 9 Feb 2002, Grant Grundler wrote:
> > > Greg Ingram wrote:
> > > > 
> > > > Writing data from my C100 to /dev/lp0 makes the kernel go kablooie.  It's
> > > > the kernel from the recent (0.9.3?) iso.  Known problem?  Any more info I
> > > > could supply that would help?  I've appended everything on the console
> > > > from the crash, through the power cycle, to mounting disks again.  
> > > 
> > > Can you grab a newer kernel from ftp://ftp.parisc-linux.org/kernels/32/
> > > and try that?
> > > 
> > > 0.9.3 is just not worth chasing at this point.
> > 
> > Yikes!
> > 
> > apollos:~# uname -a
> > Linux apollos 2.4.17-pa23 #1 Sun Feb 10 09:24:11 MST 2002 parisc unknown
> > apollos:~# echo >/dev/lp0
> > lp0: compatibility mode
> 
> I've reproduced it on my B132. You could avoid the crash by disabling
> CONFIG_PARPORT_PC. No idea how good parport works, but my B132 doesn't crash
> anymore.

Hmm...  Can you print?

- Greg





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Timothy Ball wrote:
> do { ... } while(0); do not need the trailing semicolon and may lead to
> strange side effects. the following patch fixes it.

Tim,
thanks for the patch...but that code doesn't exist in the parisc-linux
source tree. We've got:
  ...
  128 /* TLB flushing routines.... */
  129 
  130 extern void flush_tlb_all(void);
  ...

Matthew Wilcox is looking at syncing our tree with 2.4 at least.
Offhand, don't know if anyone is looking at updating 2.5 for parisc.

thanks,
grant



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This might be a silly question, but here goes.......

where do i get the stiFB driver ?

i've got a 712/60

help !


James S






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This might be a silly question, but here goes.......

where do i get the stiFB driver ?

i've got a 712/60

help !


James S






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scratch that last message - i hadnt installed all the .deb files needed

Thanks


James S





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From: Helge Deller <helge.deller@sap.com>
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On Wednesday 13 February 2002 09:10, James S wrote:
> This might be a silly question, but here goes.......
>
> where do i get the stiFB driver ?
>
> i've got a 712/60
>
> help !
>
>
> James S

Hi James,

the stiFB driver should already be compiled into the kernel. 
If you see the Tux Penguin at bootup the stiFB driver is
active - if  you don't see it install a newer kernel.

Then apt-get the necessary XFree86 packages and
read the FAQ at http://www.parisc-linux.org/faq/index.html
FAQ entries #12 and #13 should be most interesting for you.
The Link in FAQ entry #12 will also point you to a XF86Config-4 
file which you might use to start with.

Best regards,
Helge



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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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	Hi
I have a problem with the dump driver. I was only testing it with
a "breakpoint" and "instruction fault", now i try the real life,
a good old "data page fault", but the problem is, it start the dump, 
but at the first try to write on the dump device if "sleep"
forever in "brw_kiovec". I'm pretty sure that it comes from
a spinlock deadlock. So I'm looking for someone who is able
to explain the "data page fault" function. 
For me it is the signal 15 in function handle_interruption() 
of traps.c. If it is the space 0 (kernel space), it call 
parisc_terminate(), that call dump() (my funtion). But in dump 
I use a buffer, and I use this buffer with "brw_kiovec". So I 
think that "brw_kiovec" do a page_fault somewhere, but because 
the previous page_fault fail, there is still a spinlock somewhere.
Can someone help on this issue ?

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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	Another thing that can produce this behavior is the interruption mask.
When calling the do_page_fault, what it the interruption mask ? I think it is 
high enought to mask SCSI interruption ? When is it reset back ?

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Hey Grant,

Sorry first for delay.

Sorry also if I desapoint you but "CONFIG_TULIP_MMIO=y" works for my b180
(afaik same HW than b132l+ but processor clock?) with last k-2.4.17-pa23:
...
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 65 at 0xf0fff000, 00:10:83:65:09:4B, IRQ
96.
PPP generic driver version 2.4.1
PPP Deflate Compression module registered
PPP BSD Compression module registered
...

trust me it is running.

Joel

PS: may .config file attached

(See attached file: config.tst)

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Subject: [parisc-linux] smbfs.o module
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has anybody tried compiling this module ?

it would save me a lot of time if somebody has it already compiled - I could
just 'insmod' it.....

i'm on a  712/60 & installed using the 'testing' fileset

Thanks

James S






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From: "Holst, Richard G (Dick), PROSH" <dholst@att.com>
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Folks,

I too have managed to get 0.9.3 ISO image to load and run on my D350 =
thanks to Stephen Roylance a member of this mailing list.

My question and or problem now is trying to get the console to come up =
and run X windows on the VGA graphics card that is installed in my D =
server.

The HP number of the display adapter is A4081-66009, and I have been =
able to locate it on Google.com as a valid HP part. I have set the =
firmware console path to the hardware path displayed by the "in io" =
command (12/10). The system boots, I get the Penguin in the upper left =
corner of the video display followed by some text. The last message I =
see on the VGA display is about start the Gnome mgr. The output then =
reverts back to the serial terminal and I get a login prompt.

I looked at the messages in the dmesg file, and it tells me that it =
can't find the display. Has anyone else run into the problem? Any help =
or a push in the right direction would be greatly appreciated.

Thanks in advance

Dick Holst


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] parisc-linux on a D server
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On Wednesday 13 February 2002 22:25, Holst, Richard G (Dick), PROSH wrote:
> The system boots, I get the Penguin in the upper left corner of the video
> display followed by some text. The last message I see on the VGA display is
> about start the Gnome mgr. The output then reverts back to the serial
> terminal and I get a login prompt.
>
> I looked at the messages in the dmesg file, and it tells me that it can't
> find the display. Has anyone else run into the problem? Any help or a push
> in the right direction would be greatly appreciated.

Check your resolution and mouse settings in the XF86Config-4 file.
Please also read the FAQ at http://www.parisc-linux.org

Helge



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: [parisc-linux] Problem with the current HP PA setup of debian
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Hello PA-RISC hackers !

Since the last update a few days ago (apt-get dist-upgrade),
I cannot login as ROOT on the console (/dev/ttyS0), although
`/etc/securetty' includes `ttyS0'.

Login with a non-root user is ok, and a `su' with root password
also succeeds. Only the initial login as root fails !

My `/etc/securetty':
# /etc/securetty: list of terminals on which root is allowed to login.
# See securetty(5) and login(1).
console
# Standard consoles
tty1
tty2
tty3
tty4
tty5
tty6
tty7
tty8
tty9
tty10
tty11
tty12
ttyS0
ttyB0
# Same as above, but these only occur with devfs devices
vc/1
vc/2
vc/3
vc/4
vc/5
vc/6
vc/7
vc/8
vc/9
vc/10
vc/11
vc/12

My `/etc/inittab':
# Boot-time system configuration/initialization script.
# This is run first except when booting in emergency (-b) mode.
si::sysinit:/etc/init.d/rcS

# What to do in single-user mode.
~~:S:wait:/sbin/sulogin

# /etc/init.d executes the S and K scripts upon change
# of runlevel.
#
# Runlevel 0 is halt.
# Runlevel 1 is single-user.
# Runlevels 2-5 are multi-user.
# Runlevel 6 is reboot.

l0:0:wait:/etc/init.d/rc 0
l1:1:wait:/etc/init.d/rc 1
l2:2:wait:/etc/init.d/rc 2
l3:3:wait:/etc/init.d/rc 3
l4:4:wait:/etc/init.d/rc 4
l5:5:wait:/etc/init.d/rc 5
l6:6:wait:/etc/init.d/rc 6
# Normally not reached, but fallthrough in case of emergency.
z6:6:respawn:/sbin/sulogin

# What to do when CTRL-ALT-DEL is pressed.
ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -r now

# Action on special keypress (ALT-UpArrow).
kb::kbrequest:/bin/echo "Keyboard Request--edit /etc/inittab to let this
work."

# What to do when the power fails/returns.
pf::powerwait:/etc/init.d/powerfail start
pn::powerfailnow:/etc/init.d/powerfail now
po::powerokwait:/etc/init.d/powerfail stop

# /sbin/getty invocations for the runlevels.
#
# The "id" field MUST be the same as the last
# characters of the device (after "tty").
#
# Format:
#  <id>:<runlevels>:<action>:<process>
1:2345:respawn:/sbin/getty 38400 tty1
#2:23:respawn:/sbin/getty 38400 tty2
#3:23:respawn:/sbin/getty 38400 tty3
#4:23:respawn:/sbin/getty 38400 tty4
#5:23:respawn:/sbin/getty 38400 tty5
#6:23:respawn:/sbin/getty 38400 tty6

# Example how to put a getty on a serial line (for a terminal)
#
T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100
#X0:23:respawn:/sbin/getty -L ttyB0 9600 vt100
#T1:23:respawn:/sbin/getty -L ttyS1 9600 vt100

# Example how to put a getty on a modem line.
#
#T3:23:respawn:/sbin/mgetty -x0 -s 57600 ttyS3

I hope anybody knows already the problem !

Bye
Christoph P.


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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> has anybody tried compiling this module ?

yes, there are details in the mailing list archives. it was definitely
working at one point, but i haven't tried recently myself.

> it would save me a lot of time if somebody has it already compiled - I could
> just 'insmod' it.....

drivers are specific for a kernel configuration, so in general you
cannot just insmod a driver built for a different config.

have you tried compiling it yourself?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Problem with the current HP PA setup of debian
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On Thursday 14 February 2002 00:31, Christoph Plattner wrote:
> Hello PA-RISC hackers !
>
> Since the last update a few days ago (apt-get dist-upgrade),
> I cannot login as ROOT on the console (/dev/ttyS0), although
> `/etc/securetty' includes `ttyS0'.

Hi Christoph,

I had a lot of problems with the latest debian libc6 packages,
downgrading them again to 2.2.4-7 cured all my problems.
All 2.2.5-X (X=1..3) libc6 packages seem broken.
Maybe this also helps in your case ?

Regards,
Helge



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From: "FAUCHER,DENNIS (HP-USA,ex1)" <dennis_faucher@hp.com>
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Subject: [parisc-linux] RE: xf86 Config Files for 715/100
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Cataldo,

The key to my success was not the config files, but a new kernel and the
right bit depth.  Here is the cookbook I published yesterday:

Hello,
I wanted to document how easy it was to get X and gnome running on a
715/100.  I experienced much pain until  I found the easy process. Here is
what worked for me:
1) Create boot CD from 0.9.3.iso
2) Install from boot CD
3) Choose to install packages over http from debian.org
4) Re-boot and make sure everything is working (X won't work)
5) dselect the latest kernel
6) Re-boot with the latest kernel (Mine is vmlinux-2.4.16-32).
7) Make sure you are using a serial mouse
7) Run dpkg-reconfigure xserver-xfree86
8) Use all the defaults except for 24 for default bit depth and Auto for
mouse type
This is what worked for me.  X wouldn't work until I dselected to a new
kernel and the mouse wouldn't work  until I attached a serial mouse and
chose Auto.
Sincerely,
Dennis Faucher
dennis_faucher@hp_dot_com

Sincerely,
Dennis Faucher
Technical Consultant
Hewlett-Packard Company
https://www.ecardfile.com/id/dennis_faucher (Contact)
http://e-services.hp.com (E-Services) 

-----Original Message-----
From: Cataldo_Urso@hotmail.com [mailto:Cataldo_Urso@hotmail.com]
Sent: Thursday, February 14, 2002 2:49 PM
To: FAUCHER,DENNIS (HP-USA,ex1)
Subject: Re: xf86 Config Files for 715/100


Hello,

I just installed linux (0.9.3) on my 712/60 and I appreciate if you can help
me by sending me the config file you received.

Best regards,
Cataldo URSO.

----- Original Message -----
From: "FAUCHER,DENNIS (HP-USA,ex1)" <dennis_faucher@hp.com>
Newsgroups: linux.debian.ports.hppa
Sent: Wednesday, January 23, 2002 5:20 PM
Subject: xf86 Config Files for 715/100


> Hello,
>
> Does anyone have X working on an HP 715/100 with an A1097C monitor and
0.9.3
> Linux?  Joel Soete was nice enough to send me his config files from his
712
> and B180, but they have not solved the problem.  Thank you for any input.
I
> have included my XFree86.0.log for fun.
>
> Sincerely,
> Dennis Faucher
> Technical Consultant
> Hewlett-Packard Company
> https://www.ecardfile.com/id/dennis_faucher (Contact)
> http://e-services.hp.com (E-Services)
>
>
> This is a pre-release version of XFree86, and is not supported in any
> way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
> to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
> please check the latest version in the XFree86 CVS repository
> (http://www.XFree86.Org/cvs)
>
> XFree86 Version 4.1.0.1 / X Window System
> (protocol Version 11, revision 0, vendor release 6510)
> Release Date: 21 December 2001
> If the server is older than 6-12 months, or if your card is
> newer than the above date, look for a newer version before
> reporting problems.  (See http://www.XFree86.Org/FAQ)
> Build Operating System: Linux 2.4.16-64 parisc64 [ELF]
> (==) Log file: "/var/log/XFree86.0.log", Time: Fri Jan 18 19:58:34 2002
> (==) Using config file: "/etc/X11/XF86Config-4"
> Markers: (--) probed, (**) from config file, (==) default setting,
>          (++) from command line, (!!) notice, (II) informational,
>          (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> (==) ServerLayout "Simple Layout"
> (**) |-->Screen "Screen 1" (0)
> (**) |   |-->Monitor "HP A1097C"
> (**) |   |-->Device "HP Framebuffer"
> (**) |-->Input Device "Mouse1"
> (**) |-->Input Device "Keyboard1"
> (**) Option "AutoRepeat" "500 30"
> (**) Option "XkbRules" "xfree86"
> (**) XKB: rules: "xfree86"
> (**) Option "XkbModel" "pc101"
> (**) XKB: model: "pc101"
> (**) Option "XkbLayout" "us"
> (**) XKB: layout: "us"
> (==) Keyboard: CustomKeycode disabled
> (**) FontPath set to
>
"/usr/X11R6/lib/X11/fonts/misc/,/usr/X11R6/lib/X11/fonts/75dpi/:unscaled,/us
>
r/X11R6/lib/X11/fonts/100dpi/:unscaled,/usr/X11R6/lib/X11/fonts/Type1/,/usr/
>
X11R6/lib/X11/fonts/Speedo/,/usr/X11R6/lib/X11/fonts/75dpi/,/usr/X11R6/lib/X
> 11/fonts/100dpi/"
> (**) RgbPath set to "/usr/X11R6/lib/X11/rgb"
> (--) using VT number 7
>
> (WW) Cannot open APM
> (EE) No OS PCI support available
> (II) Addressable bus resource ranges are
> [0] -1 0 0x00000000 - 0xffffffff (0x0) MX[B]
> [1] -1 0 0x00000000 - 0x0000ffff (0x10000) IX[B]
> (II) OS-reported resource ranges:
> [0] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
> [1] -1 0 0x00000000 - 0x00000000 (0x1) MX[B]
> [2] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
> [3] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
> (II) OS-reported resource ranges after removing overlaps with PCI:
> [0] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
> [1] -1 0 0x00000000 - 0x00000000 (0x1) MX[B]
> [2] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
> [3] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
> (II) All system resource ranges:
> [0] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
> [1] -1 0 0x00000000 - 0x00000000 (0x1) MX[B]
> [2] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
> [3] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
> (II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
> mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
> (II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,
> pm2, pm, 300sx, 500tx, mx, delta
> S3VIdentify
> (II) S3VIRGE: driver (version 1.6.13) for S3 ViRGE chipsets: virge,
86C325,
> virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
> 86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
> trio 3d/2x, 86C362, 86C368
> (II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
> SIS300, SIS630, SIS540
> (II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
> Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
> Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
> TwisterK
> (II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320,
cyber9388,
> cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
> tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
> providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
> cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
> cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
> (II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
> ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
> ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
> (II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
> 3dfx Voodoo3, 3dfx Voodoo5
> (II) FBDev: driver for framebuffer: fbdev, afb
> (II) ATI: ATI driver (version 6.3.6) for chipsets: ati
> (II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
> ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
> ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
> ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
> ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
> ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
> ATI Rage 128 Mobility ML (AGP)
> (II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
> ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
> ATI Radeon VE (AGP)
> (II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,
> imstt3d
> (II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
> (II) v4l driver for Video4Linux
> S3VProbe begin
> (II) FBDev(0): using default device
> (II) Running in FRAMEBUFFER Mode
> (**) FBDev(0): Depth 8, (--) framebuffer bpp 8
> (==) FBDev(0): Default visual is PseudoColor
> (==) FBDev(0): Using gamma correction (1.0, 1.0, 1.0)
> (II) FBDev(0): Hardware:  (vidmem: 8192k)
> (II) FBDev(0): Checking Modes against framebuffer device...
> (II) FBDev(0): mode "1280x1024" ok
> (II) FBDev(0): Checking Modes against monitor...
> (--) FBDev(0): Virtual size is 1280x1024 (pitch 1280)
> (**) FBDev(0): Built-in mode "current": 28000.0 MHz, 21875.0 kHz, 21362.3
Hz
> (II) FBDev(0): Modeline "current"  28000.00  1280 1280 1280 1280  1024
1024
> 1024 1024 -hsync -vsync -csync
> (==) FBDev(0): DPI set to (75, 75)
> (**) FBDev(0): Using "Shadow Framebuffer"
>
> Fatal server error:
> AddScreen/ScreenInit failed for driver 0
>
>
> When reporting a problem related to a server crash, please send
> the full server output, not just the last messages.
> This can be found in the log file "/var/log/XFree86.0.log".
> Please report problems to submit@bugs.debian.org.
>
>
> --
> To UNSUBSCRIBE, email to debian-hppa-request@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact
listmaster@lists.debian.org



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Hi,

I have two HP PA boxes both running the 0.9.3 standard iso. The first box
735/100 is excellent with no real problems (thanks for the great work).

The second box is a 730 and the 10BaseT Ethernet will not work. dmesg output
seems to indicate that it cannot find a carrier. What I need to know has
anyone else got the Ethernet working on a 730 or do I have a dead Ethernet
transceiver.
If the second is the case has anyone had any success in getting an ISA
network card working in the EISA slot if so what do I need to do to get it
working.

Once again, thanks for the great work I am not a real programmer myself, my
expertise is in the hardware side of things, as an end user I do appreciate
your efforts in giving these great HP boxes another life.


Steve Grady

BTW if anyone in Australia is interested in an HP differential EISA SCSI
card (sorry I cannot remember model number) drop me am email off list to
Steve.Grady@csiro.au. It was in the 730 and I have no use for it and it is
free to good home.



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On Fri, Feb 15, 2002 at 10:13:27AM +1100, Steve.Grady@csiro.au wrote:
> The second box is a 730 and the 10BaseT Ethernet will not work. dmesg output
> seems to indicate that it cannot find a carrier. What I need to know has
> anyone else got the Ethernet working on a 730 or do I have a dead Ethernet
> transceiver.

ethernet worked on my 730 out of the box.

> If the second is the case has anyone had any success in getting an ISA
> network card working in the EISA slot if so what do I need to do to get it
> working.

haven't tried it, yet.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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"=?iso-8859-1?Q?Jo=EBl_Soete?=" wrote:
> Sorry first for delay.
> 
> Sorry also if I desapoint you but "CONFIG_TULIP_MMIO=y" works for my b180
> (afaik same HW than b132l+ but processor clock?) with last k-2.4.17-pa23:

Disappointed?! are you kidding?! This is great! :^)

> ...
> RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
> loop: loaded (max 8 devices)
> Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
> tulip0: no phy info, aborting mtable build
> tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
> eth0: Digital DS21143 Tulip rev 65 at 0xf0fff000, 00:10:83:65:09:4B, IRQ
> 96.

Is this output from B132L with card-mode Dino?
or with built-in 21143 on B180L?

Just curious....

thanks,
grant



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this might be a daft question.......


what causes the power led to go out on the 712 systems ?

is it software controlled ?



James S






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"James S" wrote:
> what causes the power led to go out on the 712 systems ?
> is it software controlled ?

I don't think so.
The power button is under software control but I think
the LED is wired to the power supply directly.

grant



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Bruno Vidal wrote:
> but at the first try to write on the dump device if "sleep"
> forever in "brw_kiovec". I'm pretty sure that it comes from
> a spinlock deadlock. So I'm looking for someone who is able
> to explain the "data page fault" function. 

Have you considered using IODC to write out the data
instead of using OS code?

It would avoid much of the ugliness of spinlocks still
held in the IO or VM code.

> For me it is the signal 15 in function handle_interruption() 
> of traps.c. If it is the space 0 (kernel space), it call 
> parisc_terminate(), that call dump() (my funtion). But in dump 
> I use a buffer, and I use this buffer with "brw_kiovec". So I 
> think that "brw_kiovec" do a page_fault somewhere, but because 
> the previous page_fault fail, there is still a spinlock somewhere.

If you TOC the system, you should see the code was spinning
on a ldcw instruction.  either IOAQ should point to the
function and the address referenced by ldcw should be
visible in System.map.

> Can someone help on this issue ?

Once we know either (offending code location or which
spinlock), we can start looking at code to figure out
what the problem is.


In the next mail:
| Another thing that can produce this behavior is the interruption mask.
| When calling the do_page_fault, what it the interruption mask ?

I believe PSW_I bit is off. EIEM is irrelevant at this point.
See entry.S where it calls handle_interruption.

| I think it is high enough to mask SCSI interruption?
| When is it reset back ?

See "do_cpu_irq_mask()" (arch/parisc/kernel/irq.c).
SCSI interrupt as an "External Interrupt" and remains masked in the EIEM
even after PSW_I bit is set. No interrupts from anything using the masked
EIR bit will be processed until we exit do_cpu_irq_mask(). If that
gets interrupted by a page fault or something, using that driver
is toast until we reset the EIEM registers of all cpus....another
reason to use IODC since it doesn't use interrupts for
processing.

thanks,
grant



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Hi Grant,

> Disappointed?! are you kidding?! This is great! :^)

Nice ("disapointing" was just a joke) :-) )

>> ...
>> RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
>> loop: loaded (max 8 devices)
>> Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
>> tulip0: no phy info, aborting mtable build
>> tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
>> eth0: Digital DS21143 Tulip rev 65 at 0xf0fff000, 00:10:83:65:09:4B, IRQ
>> 96.

> Is this output from B132L with card-mode Dino?
> or with built-in 21143 on B180L?

It was "built-in 21143 on B180L" (is there a difference here between b180
and b132?)

Joel




                                                                           =
                                               =20
                    Grant Grundler                                         =
                                               =20
                    <grundler@dsl2.extern        To:     "Jo=EBl Soete" <js=
o@europay.com>                                   =20
                    al.hp.com>                   cc:     parisc-linux@lists=
.parisc-linux.org                              =20
                                                 Subject:     Re: kernel-2.=
4.17-pa22 boot problem B132L+ with serial      =20
                    15-02-02 05:48 AM                                      =
                                               =20
                                                                           =
                                               =20
                                                                           =
                                               =20




"=3D?iso-8859-1?Q?Jo=3DEBl_Soete?=3D" wrote:
> Sorry first for delay.
>
> Sorry also if I desapoint you but "CONFIG_TULIP_MMIO=3Dy" works for my b1=
80
> (afaik same HW than b132l+ but processor clock?) with last k-2.4.17-pa23:

Disappointed?! are you kidding?! This is great! :^)

> ...
> RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
> loop: loaded (max 8 devices)
> Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
> tulip0: no phy info, aborting mtable build
> tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
> eth0: Digital DS21143 Tulip rev 65 at 0xf0fff000, 00:10:83:65:09:4B, IRQ
> 96.

Is this output from B132L with card-mode Dino?
or with built-in 21143 on B180L?

Just curious....

thanks,
grant






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"=?iso-8859-1?Q?Jo=EBl_Soete?=" wrote:
> It was "built-in 21143 on B180L" (is there a difference here between b180
> and b132?)

Yes. I don't think B132L had 100BT built-in.
But I'm too lazy to check hwdb.parisc-linux.org right now.
Bed time.

grant



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>> what causes the power led to go out on the 712 systems ?
>> is it software controlled ?
>
>I don't think so.
>The power button is under software control but I think
>the LED is wired to the power supply directly.
>
>grant

was just wondering - mine goes out after the system starts loading - flashes
before that

when it had hp-ux on it, it stayed on

another question...

is it possible to hook the power button to the shutdown command like it is
in hp-ux ?

Thanks

James S






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On Fri, 15 Feb 2002 02:02:19 -0500
"James S" <smith-james@home.com> wrote:

> >> what causes the power led to go out on the 712 systems ?
> >> is it software controlled ?
> >
> >I don't think so.
> >The power button is under software control but I think
> >the LED is wired to the power supply directly.
> >
> >grant
> 
> was just wondering - mine goes out after the system starts loading -
> flashes before that
> 
> when it had hp-ux on it, it stayed on
> 
> another question...
> 
> is it possible to hook the power button to the shutdown command like it
> is in hp-ux ?

The LED and the powerswitch work as expected on my 712/80 at least since
the 0.9.3 ISO timeframe. I remember the LED was not working at some point
in the past, though,

	Christian 





> 
> Thanks
> 
> James S
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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On Friday 15 February 2002 08:13, Christian Suder wrote:
> On Fri, 15 Feb 2002 02:02:19 -0500
> "James S" <smith-james@home.com> wrote:
> > is it possible to hook the power button to the shutdown command like it
> > is in hp-ux ?
>
> The LED and the powerswitch work as expected on my 712/80 at least since
> the 0.9.3 ISO timeframe. 

It depends.
I know the power button works correctly on my c3000 and 715/64. Both
systems shuts down the computer cleanly.
But on another Apollo/50 machine (712/50 or 715/50 - I don't remember) 
pressing the power-button turns off the machine immediately. This is a bug
and should be fixed if possible.

Helge



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On Fri, Feb 15, 2002 at 02:02:19AM -0500, James S wrote:
> is it possible to hook the power button to the shutdown command like it is
> in hp-ux ?

I was testing a fresh install with 2.4.17-pa23 kernel last night on 712.
When I hit the power button it did a orderly shutdown and then powered
off.  Very nice.

Richard




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>>> what causes the power led to go out on the 712 systems ?
>>> is it software controlled ?
>>
>> I don't think so.
>> The power button is under software control but I think
>> the LED is wired to the power supply directly.
>>
>> grant
>
> was just wondering - mine goes out after the system starts loading - 
> flashes
> before that
>
> when it had hp-ux on it, it stayed on

We had the same problem here, and we solved it as follow:

When in Boot Admin, check the 'chassis' command.
We suppose that Chassis Codes must be turned 'on' so that the LED does 
not go out after booting.


Thibaut VARENE
PA/Linux ESIEE Team
http://www.esiee.fr/puffin




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Subject: Re: [parisc-linux] Re: kernel-2.4.17-pa22 boot problem B132L+ with serial
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Grant Grundler wrote:

>"=?iso-8859-1?Q?Jo=EBl_Soete?=" wrote:
>
>>It was "built-in 21143 on B180L" (is there a difference here between b180
>>and b132?)
>>
>
>Yes. I don't think B132L had 100BT built-in.
>But I'm too lazy to check hwdb.parisc-linux.org right now.
>Bed time.
>

B132L has 100BT built-in too.

btw, Grant, have you seen Thibaut's mail about out serial ports problems 
on a B132L+ ?


Clement.




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> I know the power button works correctly on my c3000 and 715/64. Both
> systems shuts down the computer cleanly.
> But on another Apollo/50 machine (712/50 or 715/50 - I don't remember) 
> pressing the power-button turns off the machine immediately. This is a bug
> and should be fixed if possible.
> 
> Helge
>

The 715/50 Apollo has a hard wired power button, and a full array
of leds on the front to indicate power/heartbeat/rx-tx/disk access.

My 712/60 definatley has a soft button (since I routinely pull
the rear power plug when my "tinkering" causes a kernel crash), 
and the led stays on after booting.

c.




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This is a multi-part message in MIME format.
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	Hi
I finaly found where the code is waiting. It is wainting on the interruption
from the scsi drive (it is normal :-( ). So for several "good" reason, Grant is
totaly right, I can't trust the driver, the buffer, and several other things....
So I take the decision to modify now the code and create my own dump_iodc_write,
dump_iodc_read, dump_iodc_wait, dump_iodc_open, dump_iodc_seek (I don't think
I need other functions). It is lots of works (because I have to understand how it 
works). So I'll let you know when it will be available. Thanks a lot to grant that
point to the right direction, now let's go at work :-)

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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hi all,

I have a problem.
My hp 712/60 don't find scsi HDs (hd is a lps 525S).

Im trying with search boot in  boot admin.

what is the problem?

By default TE jumper is over. Is this correct?
scsi id is 6.

Sorry for my bad english,

thanx.



__________________________________________________
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Subject: Re: [parisc-linux] Re: kernel-2.4.17-pa22 boot problem B132L+ with serial
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On Fri, Feb 15, 2002 at 12:25:36PM +0100, Clement Moyroud wrote:
> btw, Grant, have you seen Thibaut's mail about out serial ports problems 
> on a B132L+ ?

I haven't seen it.  Are they swapped?

-- 
Revolutions do not require corporate support.



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At 06:37 AM 2/15/2002 -0800, Boris "C=E1mara" wrote:
>hi all,
>
>I have a problem.
>My hp 712/60 don't find scsi HDs (hd is a lps 525S).
>
>Im trying with search boot in  boot admin.
>
>what is the problem?
>
>By default TE jumper is over. Is this correct?
>scsi id is 6.

For some reason the HP manual states the internal drive should *not* be=20
terminated. I'm been using a LPS1280S in a 712/80 with no issues.


>Sorry for my bad english,

Don't worry...

         Christian






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Bruno Vidal wrote:
> So I take the decision to modify now the code and create my own
> dump_iodc_write, dump_iodc_read, dump_iodc_wait, dump_iodc_open,
> dump_iodc_seek (I don't think I need other functions).

You should be able to leverage most of the code from palo.
Note that palo runs in th CPU in real-mode - not virtual mode.
You might consider doing the same for the dump code and just
be *very* careful about which functions you call.

Oh, and the dump path might want to do two other things:
1) PDC_IO_RESET_CLEAR
2) switch linux console back to PDC console

I don't know if some of those things are already happening.
If I have time, I'll look later.

palo is in CVS on the same server (cvs.parisc-linux.org) as our kernel.
(ie "cvs co palo" instead of linux)

> Thanks a lot to grant that point to the right direction,
> now let's go at work :-)

hehe..very welcome...I'm very happy to see you doing it...it's been
on my wish list for a long time.

thanks,
grant



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Folks,

When my D server boots and tries to run X, I get an initial gray =
background and the X cursor, followed by a white box in the center of =
the screen, the X cursor turns to an arrow and then the screen goes =
blank. The login prompt then appears on my serial terminal.  The syslog =
file seems to be indicating that the system is having a problem with the =
PS/2 transmit buffer timeout. My /etc/X11/XF86Config-4 file is set up as =
follows for the mouse:

__________________________________________
__________________________________________

Section "InputDevices"

# Identifier and driver

	Identifier	"mouse1"
	Driver		"mouse"
	Option	"Protocol"	"PS/2"
	Option	"Device"	"/dev/mouse"

EndSection

_________________________________________
_________________________________________

Can anyone help me with this problem please?

Dick Holst







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On Fri, Feb 15, 2002 at 12:08:18PM -0700, Grant Grundler wrote:
> You should be able to leverage most of the code from palo.
> Note that palo runs in th CPU in real-mode - not virtual mode.
> You might consider doing the same for the dump code and just
> be *very* careful about which functions you call.

You have to do that anyway.  If a device has managed to DMA all over
the kernel text, you have to have a completely independent dump
mechanism.  I personally HATE the idea of a kernel dump driver and
think that MPE's solution (on a TOC, dump the ram after reset) was
more elegant and easy to prove correct.

Note that grant disagrees with me on this.

-- 
Revolutions do not require corporate support.



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YES !!! The LED is software controlled !

I know, that my LED on the 712/60 flashed, as long as I am in
the PDC boot loader, after booting the OS, the LED stays on,
shutting down the switched off the LED.

I think the LED is normally controlled by the PDC LED control,
where RUN/WARNING/CAUTION/FATAL/.... can be defined, but on the
712 I never tried it. On the E55 I could control the LEDs in this
way, which is definitly different to the 720/730 and to the
machines with LCD.

Bye
Christoph P.


James S wrote:
> 
> this might be a daft question.......
> 
> what causes the power led to go out on the 712 systems ?
> 
> is it software controlled ?
> 
> James S
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
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company:	christoph.plattner@alcatel.at




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On the Apollo machine (720/50, 730, etc) the Power-Switch is NOT 
under software control. The switch is simple a "shortcut to ground"
and is a direct input line of the power supply unit (I know this,
because I have troubles with my power supply and studied the electrical
wirering, etc.).

On E55 I also think, that the switch is controlling the power supply
also, as I can switch off at any moment in Linux and HP-UX.

In the 712, the switch is definitly under software control, as the
software can simple ignore it ... and much more...

Bye
Christoph P.


Helge Deller wrote:
> 
> On Friday 15 February 2002 08:13, Christian Suder wrote:
> > On Fri, 15 Feb 2002 02:02:19 -0500
> > "James S" <smith-james@home.com> wrote:
> > > is it possible to hook the power button to the shutdown command like it
> > > is in hp-ux ?
> >
> > The LED and the powerswitch work as expected on my 712/80 at least since
> > the 0.9.3 ISO timeframe.
> 
> It depends.
> I know the power button works correctly on my c3000 and 715/64. Both
> systems shuts down the computer cleanly.
> But on another Apollo/50 machine (712/50 or 715/50 - I don't remember)
> pressing the power-button turns off the machine immediately. This is a bug
> and should be fixed if possible.
> 
> Helge
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Hi,

I've got a problem whe installing the MySQL-server.
Last time when I updated my system with apt-get the MySQL Server should also
be updated but after downloading the File, extracting and preconfigurating
the update proces stopped after "Stopping Mysql-server".
I waited 2 hours but nothing happend. The MySQL couldn't be started and if I
remove the new mysql-server and install the old one with dpkg the same
procedure happens.
Every time after the preconfiguration the install hangs.

I don't know what to do. I cleaned up my system and wan't to new install
MySQL, but everytime the same procedure. Does anyone solved this problem or
does anyone have any idea?

Thanx,
Tilo





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Subject: Re: [parisc-linux] MySQL Server
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In case you have libc6-2.2.5 installed you might try
to downgrade to libc6-2.2.4-7 again. 
Could be worth a try...

Helge

On Saturday 16 February 2002 00:34, Tilo Jandt wrote:
> Hi,
>
> I've got a problem whe installing the MySQL-server.
> Last time when I updated my system with apt-get the MySQL Server should
> also be updated but after downloading the File, extracting and
> preconfigurating the update proces stopped after "Stopping Mysql-server".
> I waited 2 hours but nothing happend. The MySQL couldn't be started and if
> I remove the new mysql-server and install the old one with dpkg the same
> procedure happens.
> Every time after the preconfiguration the install hangs.
>
> I don't know what to do. I cleaned up my system and wan't to new install
> MySQL, but everytime the same procedure. Does anyone solved this problem or
> does anyone have any idea?
>
> Thanx,
> Tilo




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Hi Helge,

> In case you have libc6-2.2.5 installed you might try
> to downgrade to libc6-2.2.4-7 again.
> Could be worth a try...

the MySQL server never worked for me. With the old libc6, one thread keeps
looping (100% CPU time) and with the new one it simply hangs.

> > Last time when I updated my system with apt-get the MySQL Server should
> > also be updated but after downloading the File, extracting and
> > preconfigurating the update proces stopped after "Stopping Mysql-server".
> > I waited 2 hours but nothing happend. The MySQL couldn't be started and if
> > I remove the new mysql-server and install the old one with dpkg the same
> > procedure happens.
> > Every time after the preconfiguration the install hangs.

rm /var/run/mysqld/mysqld.pid

Cheers,
--jochen




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Matthew Wilcox wrote:
> I personally HATE the idea of a kernel dump driver and
> think that MPE's solution (on a TOC, dump the ram after reset) was
> more elegant and easy to prove correct.
> 
> Note that grant disagrees with me on this.

I'm not religous about this. At this point, I'm happy for *any*
kind of a dump tool to debug kernel state when the system crashes.

grant



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Hi Sten,

On Mon, 4 Feb 2002, Sten wrote:

> On Mon, 4 Feb 2002, Jochen Friedrich wrote:
> 
> > > I have been trying to get ipv6 to work
> > > on sparc64/kernel 2.4 but it looks like it
> > > is broken somewhere in the kernel.
> > > I was wondering if this was a known problem.
> >
> > > [root@towel ip]# ping6 ::1
> > > PING ::1(::1) from ::1 : 56 data bytes
> >
> > It's the same on PARISC. However, on PARISC, although ping6 doesn't work,
> > telnet etc do work, as well as pinging the PARISC box from an Intel or
> > Alpha machine.
> 
> The reason I ask this is because I have been trying to setup a
> tunnel, and I cant get it to work either with ifconfig or iproute.
> 
> [root@towel ip]# ip tunnel add blink mode sit remote x.x.x.x dev
> eth0
> ioctl: Invalid argument

At least on PARISC, this turned out to be an glibc issue. With the latest 
glibc from debian unstable, ping6 is now working OK:

# ping6 -n www.kame.net
PING www.kame.net(3ffe:501:4819:2000:203:47ff:fea5:3257) from 
3ffe:400:470:4:a00:9ff:fe17:ca3d : 56 data bytes
64 bytes from 3ffe:501:4819:2000:203:47ff:fea5:3257: icmp_seq=1 ttl=53 
time=592
ms
64 bytes from 3ffe:501:4819:2000:203:47ff:fea5:3257: icmp_seq=2 ttl=53 
time=609
ms

--- www.kame.net ping statistics ---
3 packets transmitted, 2 received, 33% loss, time 2022ms
rtt min/avg/max/mdev = 592.367/601.114/609.862/8.781 ms
 
Cheers,
Jochen




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i've just stumbled across one called Dillo - its by no means perfect, but
its very lightweight & its available as an hppa.deb package

James S



> Hi,
>
> Where can I find netscape browser for PA-RISC Linux 0.9.3 .
>
> Maneesh
>
>
>
>







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When I push the power-button on my 715/80, it prints a
message on the screen, that a shuwdown is requested,
and then shuts down immediatly. On the next start up a
fsck is required.
It seems to be software controlled, or it would not
print that message(I think).
Maybe a shutdown signal is emmited from the kernel at
one point, but the runlevel isn't changed before.
So it should be possible to isolate that signal and
use it seperately in the atx style.
(I'm not a kernel hacker, but maybe this is a starting
point?)
Just speculating.


__________________________________________________________________

Gesendet von Yahoo! Mail - http://mail.yahoo.de
Ihre E-Mail noch individueller? - http://domains.yahoo.de



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Hey all,

Regarding root login problem on serial link, I could not reproduce on my
B180.
May be a new apt-get diste-upgrade would help?

Joel

Notes;
Debian GNU/Linux 3.0 palinux ttyS0

palinux login: root
Password:
Last login: Fri Feb 15 10:35:16 2002 from wsjso:0.0 on pts/2
Linux palinux 2.4.17-pa23-lkcd-evms-0.9.0 #4 Thu Feb 14 14:19:07 CET 2002
parisc unknown
palinux:~# dpkg -l libc6
Desired=3DUnknown/Install/Remove/Purge/Hold
| Status=3DNot/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=3D(none)/Hold/Reinst-required/X=3Dboth-problems (Status,Err:
uppercase=3Dbad)
||/ Name           Version        Description
+++-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
ii  libc6          2.2.5-3        GNU C Library: Shared libraries and
Timezone
palinux:~#

And also with k pa26

Debian GNU/Linux 3.0 palinux ttyS0

palinux login: root
Password:
Last login: Mon Feb 18 08:30:39 2002 on ttyS0
Linux palinux 2.4.17-pa26 #2 Fri Feb 15 14:55:59 CET 2002 parisc unknown
palinux:~# ll /var/lib/dpkg/status
-rw-r--r--    1 root     root       273512 Feb 14 12:31
/var/lib/dpkg/status
palinux:~# date
Mon Feb 18 08:45:02 CET 2002
palinux:~#



                                                                           =
                                               =20
                    Grant Grundler                                         =
                                               =20
                    <grundler@dsl2.extern        To:     "Jo=EBl Soete" <js=
o@europay.com>                                   =20
                    al.hp.com>                   cc:     parisc-linux@lists=
.parisc-linux.org                              =20
                                                 Subject:     Re: kernel-2.=
4.17-pa22 boot problem B132L+ with serial      =20
                    15-02-02 07:55 AM                                      =
                                               =20
                                                                           =
                                               =20
                                                                           =
                                               =20




"=3D?iso-8859-1?Q?Jo=3DEBl_Soete?=3D" wrote:
> It was "built-in 21143 on B180L" (is there a difference here between b180
> and b132?)

Yes. I don't think B132L had 100BT built-in.
But I'm too lazy to check hwdb.parisc-linux.org right now.
Bed time.

grant






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From - Thu Nov 08 21:21:45 2018
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From: Helge Deller <helge.deller@sap.com>
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Subject: Re: [parisc-linux] Power LED
Date: Mon, 18 Feb 2002 10:21:17 +0100
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On Monday 18 February 2002 08:37, Hinrich Aue wrote:
> When I push the power-button on my 715/80, it prints a
> message on the screen, that a shuwdown is requested,
> and then shuts down immediatly. On the next start up a
> fsck is required.
> It seems to be software controlled, or it would not
> print that message(I think).
> Maybe a shutdown signal is emmited from the kernel at
> one point, but the runlevel isn't changed before.
> So it should be possible to isolate that signal and
> use it seperately in the atx style.
> (I'm not a kernel hacker, but maybe this is a starting
> point?)
> Just speculating.

715/64, 715/80 and 715/100 belong to the so-called
715/new machines and all of those support the soft-power
switch, else you wouldn't have received the 
"Shutdown requested..." message. 
In your case I assume, that your filesystems wasn't clean
before you did shutdown your system....

BTW, the shutdown is initiated by the kernel by sending
a SIGINT to the PID (cad_pid) of the init process. This
is done in the file power.c:
http://cvs.parisc-linux.org/linux/arch/parisc/kernel/power.c?rev=1.5&content-type=text/vnd.viewcvs-markup
After receiving this signal the init process switches the runlevel,
shuts down your system cleanly and runs /sbin/poweroff
or /sbin/halt. This is already the case and is also done
that way for ATX systems.

Regards,
Helge
-- 
Helge Deller
SAP AG - LinuxLab and Unix Platforms
email: helge.deller@sap.com



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Hi Dick,

Some ideas:
- Do you really have a PS/2 mouse connected ? If not X will not start.
- Does /dev/mouse really points to /dev/psaux (or something like that) ?

Regards,
Helge

On Friday 15 February 2002 21:25, Holst, Richard G (Dick), PROSH wrote:
> Folks,
>
> When my D server boots and tries to run X, I get an initial gray background
> and the X cursor, followed by a white box in the center of the screen, the
> X cursor turns to an arrow and then the screen goes blank. The login prompt
> then appears on my serial terminal.  The syslog file seems to be indicating
> that the system is having a problem with the PS/2 transmit buffer timeout.
> My /etc/X11/XF86Config-4 file is set up as follows for the mouse:
>
> __________________________________________
> __________________________________________
>
> Section "InputDevices"
>
> # Identifier and driver
>
> 	Identifier	"mouse1"
> 	Driver		"mouse"
> 	Option	"Protocol"	"PS/2"
> 	Option	"Device"	"/dev/mouse"
>
> EndSection
>
> _________________________________________
> _________________________________________
>
> Can anyone help me with this problem please?
>
> Dick Holst



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------------------------------------------
>715/64, 715/80 and 715/100 belong to the so-called
>715/new machines and all of those support the
soft-power
>switch, else you wouldn't have received the 
>"Shutdown requested..." message. 
>In your case I assume, that your filesystems wasn't
clean
>before you did shutdown your system....

>BTW, the shutdown is initiated by the kernel by
sending
>a SIGINT to the PID (cad_pid) of the init process.
This
>is done in the file power.c:
>http://cvs.parisc-linux.org/linux/arch/parisc/kernel/power.c?rev=1.5&content-type=text/vnd.viewcvs-markup
>After receiving this signal the init process switches
>the runlevel,
>shuts down your system cleanly and runs
/sbin/poweroff
>or /sbin/halt. This is already the case and is also
>done
>that way for ATX systems.

>Regards,
>Helge

But if I push the power button, the init process
doesn't seem do change the runlevel, and power off
immediatly.
I can see the message "Shutdown requested..." and then
- power off -.
I think this souldn't be so.
Also I think it is a bit dangerous if everyone can
switch of the system, clean or unclean, just by
pushing the button.
Maybe a 5 second push-time would be good (like ATX)
but with a gracefull shutdown.
After all the halt script does not power off my
715/80.
I have to switch it off manually.

__________________________________________________________________

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Hi Dave,

I read your mail
:http://lists.parisc-linux.org/pipermail/parisc-linux/2002-February/015456.html

So I try to figure out how to get sources but even on
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/ (no more chance on the ftp site) I
do not find 3.1 branch.

Can you explain me how to get those sources.

Hmm... If I also read well
'http://www.parisc-linux.org/toolchain/index.html', I would also need
corresponding binutils and glibc sources?
Which release do I have do use to rebuild gcc-3.1 and how to get their src
(if requested)?

Thanks in advance for help,
     Joel



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Hi,

I've got a problem running MySQL.
After a complete new installation of Debian HPPA 0.9.3 I installed=20
Mysql-server with apt-get an it works fine.
After an update to libc6_2.2.5-3 and an mysql-sever upgrade the=20
configuration of mysql hangs.
I downgraded to libc6_2.2.4-7 an then the installation passed but I can't=20
start mysql server

I get the following log files:

beta:/var/lib/mysql# vim beta.err

020218 11:57:49  mysqld started
Cannot initialize InnoDB as 'innodb_data_file_path' is not set.
If you do not want to use transactional InnoDB tables, add a line
skip-innodb
to the [mysqld] section of init parameters in your my.cnf
or my.ini. If you want to use InnoDB tables, add for example,
innodb_data_file_path =3D ibdata1:30M
But to get good performance you should adjust for your hardware
the InnoDB startup options listed in section 2 at
http://www.innodb.com/ibman.html
020218 11:57:51  /usr/sbin/mysqld: Can't find file: './mysql/host.frm'=20
(errno: 13)
020218 11:57:51  mysqld ended

and:

beta:/var/log# vim mysql.err

Preparing db table
Preparing host table
Preparing user table
Preparing func table
Preparing tables_priv table
Preparing columns_priv table
Installing all prepared tables
020218 11:57:41  /usr/sbin/mysqld: Shutdown Complete


PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
This is done with:
/usr/bin/mysqladmin -u root -p password 'new-password'
/usr/bin/mysqladmin -u root -h beta -p password 'new-password'
See the manual for more instructions.

Please report any problems with the /usr/bin/mysqlbug script!

The latest information about MySQL is available on the web at
http://www.mysql.com
Support MySQL by buying support/licenses at https://order.mysql.com

ERROR: 1017  Can't find file: './mysql/user.frm' (errno: 13)
020218 11:57:42  /usr/sbin/mysqld: Shutdown Complete

ERROR: 1017  Can't find file: './mysql/db.frm' (errno: 13)
ERROR: 1017  Can't find file: './mysql/db.frm' (errno: 13)
020218 11:57:44  /usr/sbin/mysqld: Shutdown Complete

But these files (db.frm and user.frm) exists in /var/lib/mysql.

Does anyone have an idea how to get mysql work?

cya,
Tilo


Student of Computer Science at Chemnitz University of Technology
|[ Tilo Jandt, Vetterstra=DFe 70, Zi. 330, D-09126 Chemnitz        ]|
|[ mailto:tija@hrz.tu-chemnitz.de ]  [ ICQ: 73832493               ]|
|[ Phone: +49 179 5333 255        ]  [ Fax: +49 89 2443 25531 ]|





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On Monday 18 February 2002 11:15, Hinrich Aue wrote:
> ------------------------------------------
>
> >715/64, 715/80 and 715/100 belong to the so-called
> >715/new machines and all of those support the
>
> soft-power
>
> >switch, else you wouldn't have received the
> >"Shutdown requested..." message.
> >In your case I assume, that your filesystems wasn't
>
> clean
>
> >before you did shutdown your system....
> >
> >BTW, the shutdown is initiated by the kernel by
>
> sending
>
> >a SIGINT to the PID (cad_pid) of the init process.
>
> This
>
> >is done in the file power.c:
> >http://cvs.parisc-linux.org/linux/arch/parisc/kernel/power.c?rev=1.5&conte
> >nt-type=text/vnd.viewcvs-markup After receiving this signal the init
> > process switches
> >the runlevel,
> >shuts down your system cleanly and runs
>
> /sbin/poweroff
>
> >or /sbin/halt. This is already the case and is also
> >done
> >that way for ATX systems.
> >
> >Regards,
> >Helge
>
> But if I push the power button, the init process
> doesn't seem do change the runlevel, and power off
> immediatly.
> I can see the message "Shutdown requested..." and then
> - power off -.
> I think this souldn't be so.

Yes, that's wrong. But you seem to be the only one
who has such problems with 715/new. As I said in another
mail my Scorpio (715/50) machine shuts down immediately too - 
but this machine doesn't support the soft-power switch either.
BTW, which kernel are you using ?

> Also I think it is a bit dangerous if everyone can
> switch of the system, clean or unclean, just by
> pushing the button.

That's right, but that's also the behaviour on Non-ATX PC's.

> Maybe a 5 second push-time would be good (like ATX)
> but with a gracefull shutdown.

That's not that easy.
On some systems the switch will send a key-down signal from
the first press on, independantly if you released the button again or
not. Other machines just send the signal while the button
is down and stops it again if it was released.

That said, this is how I wrote the code. 
In process_shutdown() you'll find:
       /* wait until the button was pressed for 1 second */
        if (shutdown_timer == HZ) {
                static char msg[] = "Shutting down...";
	    printk(KERN_INFO "%s\n", msg);

This means, that the kernel will just shutdown, if you pressed
the button for at least 1 second. You might change that to 5*HZ if
you want the 5 second push-time. 
But, as I said, the kernel can't recognize on some systems if
you have released the button again and so it will always 
time-out and initiate the shutdown request. Your 715/80 seems
to fall into this category of systems.

Regards,
Helge



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> Hi Dave,
> 
> Can you explain me how to get those sources.
> 'http://www.parisc-linux.org/toolchain/index.html', I would also need
> corresponding binutils and glibc sources?
> Which release do I have do use to rebuild gcc-3.1 and how to get their src
> (if requested)?

J,

[Re: Numbers]

I think you might mean rebuilding gcc-3.0.1?

[Re: How to build]

You can take a look at:
http://www.parisc-linux.org/toolchain/PARISC-Linux-XC-HOWTO.html

Which has the detail for building binutils, gcc, glibc as a XC,
but in general it's pretty much the same for most situations.


[Re: Locations]

binutils, glibc, gcc:

ftp://ftp.debian.org/debian/pool/main/b/binutils/
ftp://ftp.debian.org/debian/pool/main/g/glibc/

ftp://ftp.debian.org/debian/pool/main/g/gcc-3.0/ (New)
ftp://ftp.debian.org/debian/pool/main/g/gcc-snapshot/ (VERY New)

You can change ftp.debian.org to match the closest mirror.

Get the latest source for everything and start compiling!

/me smiles 

c.





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Subject: Re: [parisc-linux] Re: hppa-linux gcc-3.0.3:
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Carlos,

Thanks for advise but I speek well about the new (annonced on
http://www.gnu.org/software/gcc/gcc.html: ...The next major release, GCC
3.1,...) gcc release 3.1.

Thanks any way for attention,
     Joel



                                                                           =
                                       =20
                    "Carlos                                                =
                                       =20
                    O'Donell Jr."        To:     Jo=EBl Soete <jso@europay.=
com>                                     =20
                    <carlos@baldr        cc:     dave@hiauly1.hia.nrc.ca, p=
arisc-linux@lists.parisc-linux.org     =20
                    ic.uwo.ca>           Subject:     Re: [parisc-linux] Re=
: hppa-linux gcc-3.0.3:                =20
                                                                           =
                                       =20
                    18-02-02                                               =
                                       =20
                    03:29 PM                                               =
                                       =20
                                                                           =
                                       =20
                                                                           =
                                       =20




> Hi Dave,
>
> Can you explain me how to get those sources.
> 'http://www.parisc-linux.org/toolchain/index.html', I would also need
> corresponding binutils and glibc sources?
> Which release do I have do use to rebuild gcc-3.1 and how to get their
src
> (if requested)?

J,

[Re: Numbers]

I think you might mean rebuilding gcc-3.0.1?

[Re: How to build]

You can take a look at:
http://www.parisc-linux.org/toolchain/PARISC-Linux-XC-HOWTO.html

Which has the detail for building binutils, gcc, glibc as a XC,
but in general it's pretty much the same for most situations.


[Re: Locations]

binutils, glibc, gcc:

ftp://ftp.debian.org/debian/pool/main/b/binutils/
ftp://ftp.debian.org/debian/pool/main/g/glibc/

ftp://ftp.debian.org/debian/pool/main/g/gcc-3.0/ (New)
ftp://ftp.debian.org/debian/pool/main/g/gcc-snapshot/ (VERY New)

You can change ftp.debian.org to match the closest mirror.

Get the latest source for everything and start compiling!

/me smiles

c.








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> So I try to figure out how to get sources but even on
> http://gcc.gnu.org/cgi-bin/cvsweb.cgi/ (no more chance on the ftp site) I
> do not find 3.1 branch.

There isn't a 3.1 branch yet.  Just follow the instructions to checkout
the main branch and you will get the latest approved code.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> Thanks for advise but I speek well about the new (annonced on
> http://www.gnu.org/software/gcc/gcc.html: ...The next major release, GCC
> 3.1,...) gcc release 3.1.

I am building 3.1 experimental regularly from the main gcc cvs source.
I have built glibc with it.  You probably should get the cvs binutils
because it contains a long branch related fix which will cause a seg
fault early in the bootstrap.  You can avoid it by using "-O2" in
stage1.  I have a couple of small fixes that need to go in regarding
linking with milli and pthreads routines.  The gcc testsuite (expect)
seems to trigger a parisc-linux bug which fills /var with page fault
error mesages.

I am currently trying to get dw2 unwinding working.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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David,

Ok I just launch the download of binutils snapshot dated of today.
I will then follow the 'recipe'.

Than again for all,
     Joel

PS: I would try natively (on my palinux box directly) with MACH=3Dhppa-linux
i.e.: ~/source/binutils/configure --host=3Dhppa-linux ... ?



                                                                           =
                                         =20
                    "John David                                            =
                                         =20
                    Anglin"                To:     jso@europay.com (Jo=EBl =
Soete)                                     =20
                    <dave@hiauly1.h        cc:     carlos@baldric.uwo.ca, p=
arisc-linux@lists.parisc-linux.org       =20
                    ia.nrc.ca>             Subject:     Re: [parisc-linux] =
Re: hppa-linux gcc-3.0.3:                =20
                                                                           =
                                         =20
                    18-02-02 05:41                                         =
                                         =20
                    PM                                                     =
                                         =20
                                                                           =
                                         =20
                                                                           =
                                         =20




> Thanks for advise but I speek well about the new (annonced on
> http://www.gnu.org/software/gcc/gcc.html: ...The next major release, GCC
> 3.1,...) gcc release 3.1.

I am building 3.1 experimental regularly from the main gcc cvs source.
I have built glibc with it.  You probably should get the cvs binutils
because it contains a long branch related fix which will cause a seg
fault early in the bootstrap.  You can avoid it by using "-O2" in
stage1.  I have a couple of small fixes that need to go in regarding
linking with milli and pthreads routines.  The gcc testsuite (expect)
seems to trigger a parisc-linux bug which fills /var with page fault
error mesages.

I am currently trying to get dw2 unwinding working.

Dave
--
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX:
952-6605)






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> PS: I would try natively (on my palinux box directly) with MACH=hppa-linux
> i.e.: ~/source/binutils/configure --host=hppa-linux ... ?

For binutils, I just use from my build directory:

../src/configure --prefix=/where_to_install --host=hppa-linux --disable-nls
make
make -k check
make install

Set CFLAGS if you want.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Am Montag, 18. Februar 2002 12:49 schrieben Sie:
> On Monday 18 February 2002 11:15, Hinrich Aue wrote:
> > ------------------------------------------
> >
> > >715/64, 715/80 and 715/100 belong to the so-called
> > >715/new machines and all of those support the
> >
> > soft-power
> >
> > >switch, else you wouldn't have received the
> > >"Shutdown requested..." message.
> > >In your case I assume, that your filesystems wasn't
> >
> > clean
> >
> > >before you did shutdown your system....
> > >
> > >BTW, the shutdown is initiated by the kernel by
> >
> > sending
> >
> > >a SIGINT to the PID (cad_pid) of the init process.
> >
> > This
> >
> > >is done in the file power.c:
> > >http://cvs.parisc-linux.org/linux/arch/parisc/kernel/power.c?rev=1.5&con
> > >te nt-type=text/vnd.viewcvs-markup After receiving this signal the init
> > > process switches
> > >the runlevel,
> > >shuts down your system cleanly and runs
> >
> > /sbin/poweroff
> >
> > >or /sbin/halt. This is already the case and is also
> > >done
> > >that way for ATX systems.
> > >
> > >Regards,
> > >Helge
> >
> > But if I push the power button, the init process
> > doesn't seem do change the runlevel, and power off
> > immediatly.
> > I can see the message "Shutdown requested..." and then
> > - power off -.
> > I think this souldn't be so.
>
> Yes, that's wrong. But you seem to be the only one
> who has such problems with 715/new. As I said in another

Why me?????
That's strange behavior.

> mail my Scorpio (715/50) machine shuts down immediately too -
> but this machine doesn't support the soft-power switch either.
> BTW, which kernel are you using ?

I use 2.4.17-pa26

>
> > Also I think it is a bit dangerous if everyone can
> > switch of the system, clean or unclean, just by
> > pushing the button.
>
> That's right, but that's also the behaviour on Non-ATX PC's.
>
> > Maybe a 5 second push-time would be good (like ATX)
> > but with a gracefull shutdown.
>
> That's not that easy.
> On some systems the switch will send a key-down signal from
> the first press on, independantly if you released the button again or
> not. Other machines just send the signal while the button
> is down and stops it again if it was released.
>
> That said, this is how I wrote the code.
> In process_shutdown() you'll find:
>        /* wait until the button was pressed for 1 second */
>         if (shutdown_timer == HZ) {
>                 static char msg[] = "Shutting down...";
> 	    printk(KERN_INFO "%s\n", msg);
>
> This means, that the kernel will just shutdown, if you pressed
> the button for at least 1 second. You might change that to 5*HZ if
> you want the 5 second push-time.
> But, as I said, the kernel can't recognize on some systems if
> you have released the button again and so it will always
> time-out and initiate the shutdown request. Your 715/80 seems
> to fall into this category of systems.
>
> Regards,
> Helge

Hinrich



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From: Herb Radford <herbr@magma.ca>
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Subject: [parisc-linux] Is there some progress on the K-Series?
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I can get temporary use of a K210 (it's huge - 5' high and got a big 
array!). I currently have a K460 in my "computer center" :) which when 
booted, panics royally! Now I really want boot capability to show this 
thing off!

Regards, Herb




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Just wanted to congratulate everyone for a fantastic job on the port to 
PA-Risc! I've got 712/60, /80, /100, B180, C110, C200 (no X :(), D370 (as a 
Samba server) and now a 715/100XC running Linux!
This is super!!!

Regards, Herb




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John David Anglin writes:
> > Thanks for advise but I speek well about the new (annonced on
> > http://www.gnu.org/software/gcc/gcc.html: ...The next major release, GCC
> > 3.1,...) gcc release 3.1.
> 
> I am building 3.1 experimental regularly from the main gcc cvs source.
> I have built glibc with it.  You probably should get the cvs binutils
> because it contains a long branch related fix which will cause a seg
> fault early in the bootstrap.  You can avoid it by using "-O2" in
> stage1.  I have a couple of small fixes that need to go in regarding
> linking with milli and pthreads routines.  The gcc testsuite (expect)
> seems to trigger a parisc-linux bug which fills /var with page fault
> error mesages.

I just uploaded the gcc-snapshot_20020216 build to incoming (without
any extra patches). 

To use this snapshot, you should set the following environment
variables:

        LD_LIBRARY_PATH=/usr/lib/gcc-snapshot/lib:$LD_LIBRARY_PATH
        PATH=/usr/lib/gcc-snapshot/bin:$PATH

Unset these variables before building Debian packages destined for an
upload to ftp-master.debian.org.

The snapshot packages doesn't build automatically. I had to restart
the build due to bash problems (the same you saw as well).

	Matthias



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> The snapshot packages doesn't build automatically. I had to restart
> the build due to bash problems (the same you saw as well).

The bash problem can be fixed by building bash with --without-bash-malloc.
Been running that way for more than a week and no more bash problems.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: [parisc-linux] STI errno 128
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Maybe some of the HP insiders could help me find out, why STI doesn't
work on my B2600/FXe. What I need to know is what a errno == 128 returned
from init_graph() means ? Anybody ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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Subject: [parisc-linux] HP-HIL keyboard wanted
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I've found HP-HIL keyboards online for $45 apiece, but I'm not yet
willing to fork out that much money.  I was wondering if anybody had a
keyboard (and/or 3-button mouse) they would be willing to part with
for a smaller fee...

I'm not subscribed to the list, so please contact me off-list.

--=20
Eric Hodel - drbrain@segment7.net - http://segment7.net
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I use 2.4.17-pa26

I tried to increase push-time to 5*HZ.
But as you said, the machine doesn't seem to recognize
when I release the button. So the shutdown is
initiated correctly, but after 5 sec the machine shuts
down, ignoring whether the runlevel 6 is reached or
not.
BTW why does the halt command not shut down the
machine?
I heared it would work. :-<
Is it possible to change the bit 0 if CPU diagnose
register 25 by hand?






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On Tuesday 19 February 2002 09:50, Hinrich Aue wrote:
> I use 2.4.17-pa26
>
> I tried to increase push-time to 5*HZ.
> But as you said, the machine doesn't seem to recognize
> when I release the button. 

Yep.

> So the shutdown is
> initiated correctly, but after 5 sec the machine shuts
> down, ignoring whether the runlevel 6 is reached or
> not.

process_shutdown() calls after 5 seconds poweroff(), which in
turn calls deferred_poweroff() again. deferred_poweroff() then
sends the SIGINT signal to the init process which then
initiates the normal shutdown. There is no other kernel-code
which powers off your computer directly.
This works perfectly for me on the 715/64 and many others here.
Maybe your PDC (BIOS/Firmware) handles that differentlly ? Maybe
you could verify that you have the most recent PDC version ?

> BTW why does the halt command not shut down the
> machine?

I've not found any direct PDC (BIOS/Firmware) call which does this.
pdc_soft_power_shutdown() doesn't seem to do want it's name
suggests. It instead seems to set a flag in the PDC so that when 
you reboot your system it will shut off during the main PDC tests. 
So there seems to be a way to turn off the system immediately,
but it seem to be _very_ system dependant too.

> I heared it would work. :-<
> Is it possible to change the bit 0 if CPU diagnose
> register 25 by hand?

I tried it, but it didn't worked.
If we would find a way to reset bit 0 in reg 25 we would
have a solution.

Helge




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Subject: [parisc-linux] Anyone interrested in a 715/80 for free?
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I've got a unused 715/80 with 32MB RAM and a HP
3d-Accelerator.
No HIL keyboard or mouse.
I've got some 1GB scsi-drives too - I don't need them.
The machine should work fine, but I did not test it.
I'm in Germany Mlln, that's near Hamburg. Next Month
I'm in Furtwangen that's near Freiburg/Stuttgart.
So there are two places to get it.

Somebody interested?

__________________________________________________________________

Gesendet von Yahoo! Mail - http://mail.yahoo.de
Ihre E-Mail noch individueller? - http://domains.yahoo.de



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Hello David,

Just finished to compile binutils. All seems Ok.
I just notice many "WARNING: could not find 'runtest'" when "make -k
check". Is it normal?

Thanks,
     Joel



                                                                           =
                                         =20
                    "John David                                            =
                                         =20
                    Anglin"                To:     jso@europay.com (Jo=EBl =
Soete)                                     =20
                    <dave@hiauly1.h        cc:     carlos@baldric.uwo.ca, "=
jso"@hiauly1.hia.nrc.ca,                 =20
                    ia.nrc.ca>             <jso@europay.com>, parisc-linux@=
lists.parisc-linux.org                   =20
                                           Subject:     Re: [parisc-linux] =
Re: hppa-linux gcc-3.0.3:                =20
                    18-02-02 07:03                                         =
                                         =20
                    PM                                                     =
                                         =20
                                                                           =
                                         =20
                                                                           =
                                         =20




> PS: I would try natively (on my palinux box directly) with
MACH=3Dhppa-linux
> i.e.: ~/source/binutils/configure --host=3Dhppa-linux ... ?

For binutils, I just use from my build directory:

../src/configure --prefix=3D/where_to_install --host=3Dhppa-linux --disable=
-nls
make
make -k check
make install

Set CFLAGS if you want.

Dave
--
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX:
952-6605)






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Hey Matthias,

Just a stupid question: "/usr/lib/gcc-snapshot/" is there where you put
your sources gcc-snapshot sources?

Thanks for help,
     Joel



                                                                           =
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                    Matthias                                               =
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                    Klose                To:     "John David Anglin" <dave@=
hiauly1.hia.nrc.ca>                    =20
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ete), carlos@baldric.uwo.ca,             =20
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g                                      =20
                                         Subject:     Re: [parisc-linux] Re=
: hppa-linux gcc-3.0.3:                =20
                    18-02-02                                               =
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John David Anglin writes:
> > Thanks for advise but I speek well about the new (annonced on
> > http://www.gnu.org/software/gcc/gcc.html: ...The next major release,
GCC
> > 3.1,...) gcc release 3.1.
>
> I am building 3.1 experimental regularly from the main gcc cvs source.
> I have built glibc with it.  You probably should get the cvs binutils
> because it contains a long branch related fix which will cause a seg
> fault early in the bootstrap.  You can avoid it by using "-O2" in
> stage1.  I have a couple of small fixes that need to go in regarding
> linking with milli and pthreads routines.  The gcc testsuite (expect)
> seems to trigger a parisc-linux bug which fills /var with page fault
> error mesages.

I just uploaded the gcc-snapshot_20020216 build to incoming (without
any extra patches).

To use this snapshot, you should set the following environment
variables:

        LD_LIBRARY_PATH=3D/usr/lib/gcc-snapshot/lib:$LD_LIBRARY_PATH
        PATH=3D/usr/lib/gcc-snapshot/bin:$PATH

Unset these variables before building Debian packages destined for an
upload to ftp-master.debian.org.

The snapshot packages doesn't build automatically. I had to restart
the build due to bash problems (the same you saw as well).

           Matthias






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> Just finished to compile binutils. All seems Ok.
> I just notice many "WARNING: could not find 'runtest'" when "make -k
> check". Is it normal?

This is normal:

if /bin/sh -c "$runtest --version" > /dev/null 2>&1; then \
  $runtest --tool libstdc++-v3 --srcdir $srcdir ; \
else echo "WARNING: could not find \`runtest'" 1>&2; :;\
fi
WARNING: Couldn't find the global config file.
WARNING: Couldn't find tool init file

You can get rid of the "global config" warning by installing a global
config file for dejagnu.  There is as sample in the distribution.

If you actually see your warning and not just the Makefile command,
then you have a problem with your dejagnu installation or PATH variable.
In order to run the testsuite, you need dejagnu, expect and tcl
installed.  They may require some other packages as well for full
functionality.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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David,

It seems Ok: just finished the first step of compiling gcc (snapshot  dated
020218 from sources.redhat.com because I do not find where Matthias
uploaded its snapshot :( ) with echo $? -> after make :-).
I will continue with glibc.

Thanks for all,
     Joel

PS: with gcc snapshot, I also find gcc-core-xxx.bz2. Do know what is it?
(Do I need it?)



                                                                           =
                                         =20
                    "John David                                            =
                                         =20
                    Anglin"                To:     jso@europay.com (Jo=EBl =
Soete)                                     =20
                    <dave@hiauly1.h        cc:     carlos@baldric.uwo.ca, j=
so@europay.com, "jso"@hiauly1.hia.nrc.ca,=20
                    ia.nrc.ca>             <jso@europay.com>, parisc-linux@=
lists.parisc-linux.org, "jso"            =20
                                           @hiauly1.hia.nrc.ca             =
                                         =20
                    19-02-02 04:58         Subject:     Re: [parisc-linux] =
Re: hppa-linux gcc-3.0.3:                =20
                    PM                                                     =
                                         =20
                                                                           =
                                         =20
                                                                           =
                                         =20




> Just finished to compile binutils. All seems Ok.
> I just notice many "WARNING: could not find 'runtest'" when "make -k
> check". Is it normal?

This is normal:

if /bin/sh -c "$runtest --version" > /dev/null 2>&1; then \
  $runtest --tool libstdc++-v3 --srcdir $srcdir ; \
else echo "WARNING: could not find \`runtest'" 1>&2; :;\
fi
WARNING: Couldn't find the global config file.
WARNING: Couldn't find tool init file

You can get rid of the "global config" warning by installing a global
config file for dejagnu.  There is as sample in the distribution.

If you actually see your warning and not just the Makefile command,
then you have a problem with your dejagnu installation or PATH variable.
In order to run the testsuite, you need dejagnu, expect and tcl
installed.  They may require some other packages as well for full
functionality.

Dave
--
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX:
952-6605)






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Every time i send a printjob to the local printer port the machine locks
solid

anybody else having this problem ?

i've got an HP deskjet 500 attached using a standard parallel cable
using the cups printing system, although i tried lpd & got the same result

Thanks

James S






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when i try to run some X apps, i get this error:-

Unresolved inheritance operation


i get this when i run the siag pathetic writer app & also in chimera2

with the 1st, it stops the app from running, with the second it stop some
child windows from opening


anybody know what i might have to do to correct the problem ?


Thanks

James S






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Jo=EBl Soete writes:
>=20
> David,
>=20
> It seems Ok: just finished the first step of compiling gcc (snapshot =
 dated
> 020218 from sources.redhat.com because I do not find where Matthias
> uploaded its snapshot :( ) with echo $? -> after make :-).

It's now in the unstable/sid distribution.




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http://linuxdoc.org/HOWTO/PA-RISC-Linux-Boot-HOWTO/preparation.html

 Not sure if you want to add this to the above URL or not. For the B1k:

 The command to switch to serial is:

>  path console serial_1

 to go back to graphics mode:

> path console graphics(2)

 Perhaps this is because it has the EG_PCI card, and not onboard VGA
like the C class.

 Going through the install now, via serial console. Everything was working
fine until I tried to install a kernel from the cdrom:

You have more than one CD-ROM drive.  Please select the drive from which
you want to install Debian

/dev/name:      : No description defined for this type of CD-ROM.
/dev/           : No description defined for this type of CD-ROM.
etc

 While I only have one cd-rom. Instead I chose to install a kernel via ftp
(the default path on the iso is incorrect, one must add "32" or "64" to
the end, I chose 32. The URL it went to was:
http.us.debian.org/debian/dists/woody/main/disks-hppa/current/32
and file: images-1.44/rescue.bin everything exited cleanly.

 Now it's prompting to "Configure Device Driver
Modules" and am getting the following error:

No modules were found in /target/lib/modules/2.4.9-32 that
could be configured. Please install the kernel modules
first, by running the "Configure Device Driver Modules"
step.

 And it brings me back to the "Configure Device Driver Modules" prompt.

 Kowtow,

--
Yashy





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Nice (very nice) :-))

Joel



                                                                           =
                                       =20
                    Matthias                                               =
                                       =20
                    Klose                To:     "Jo=EBl Soete" <jso@europa=
y.com>                                   =20
                    <doko@cs.tu-b        cc:     parisc-linux@lists.parisc-=
linux.org                              =20
                    erlin.de>            Subject:     Re: [parisc-linux] Re=
: hppa-linux gcc-3.0.3:                =20
                                                                           =
                                       =20
                    19-02-02                                               =
                                       =20
                    10:57 PM                                               =
                                       =20
                                                                           =
                                       =20
                                                                           =
                                       =20




Jo=EBl Soete writes:
>
> David,
>
> It seems Ok: just finished the first step of compiling gcc (snapshot
dated
> 020218 from sources.redhat.com because I do not find where Matthias
> uploaded its snapshot :( ) with echo $? -> after make :-).

It's now in the unstable/sid distribution.







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Subject: [parisc-linux] gcc-3.1 && k-2.4.17-pa27 50/50(was Re: hppa-linux gcc-3.0.3:)
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Hi all,

Test  summary: I follow the recipe to build a kernel with binutils snapshot
20020218; gcc snapshot 20020218; glibc debian sources and last cvs kernel
2.4.17-pa27 and palo .

I do not notice compile error :-)) (Hmm only note in dmesg  some
do_page_fault() pid=3D... command=3D'conftest' ... during glibc rebuild, I =
am
not sure; I do not find any trace in my logs? ).

Also I install this kernel and reboot the server with it.

Well it boot well and seems to run well in mutli-user mode with minimun
daemon running.

Just inetd seems to make the system panic after a simple telnet:
...
Kernel fault: Code=3D15 regs=3D...
...

David is it the problem of bootstrap you spoke about binutils?

Matthias very sorry but I do not yet find your new package(s) (neither on
ftp://ftp.debian.org/debian/pool/main/g/gcc* neither on ftp.de.debian.org).
Must I be more patient? (I do not know anything about debian life cycle pkg
:( )
Hmm I do not find more where you upload your snapshot 20020216?

Thanks a lot to all for all info,
     Joel




                                                                           =
                                       =20
                    Matthias                                               =
                                       =20
                    Klose                To:     "Jo=EBl Soete" <jso@europa=
y.com>                                   =20
                    <doko@cs.tu-b        cc:     parisc-linux@lists.parisc-=
linux.org                              =20
                    erlin.de>            Subject:     Re: [parisc-linux] Re=
: hppa-linux gcc-3.0.3:                =20
                                                                           =
                                       =20
                    19-02-02                                               =
                                       =20
                    10:57 PM                                               =
                                       =20
                                                                           =
                                       =20
                                                                           =
                                       =20




Jo=EBl Soete writes:
>
> David,
>
> It seems Ok: just finished the first step of compiling gcc (snapshot
dated
> 020218 from sources.redhat.com because I do not find where Matthias
> uploaded its snapshot :( ) with echo $? -> after make :-).

It's now in the unstable/sid distribution.







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When I boot my D server running parisc LInuxLinux .9.3. the graphics =
monitor is the console. I set the hardware path for the console to the =
hardware address of the graphics (vga) card. I get the TUX penguin in =
the upper left of the monitor and all the boot message and all the rc =
startup messages. Just when the system is ready to give me a login =
prompt, the out of the console shift to my serial terminal. I would =
appear that I need a line in my /etc/inittab that will cause the login =
prompt to appear on the graphics monitor. Can someone tell me how to get =
the login prompt to appear on my graphics monitor instead of my serial =
terminal please.


Dick Holst





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Subject: Re: [parisc-linux] gcc-3.1 && k-2.4.17-pa27 50/50(was Re: hppa-linux gcc-3.0.3:)
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> I do not notice compile error :-)) (Hmm only note in dmesg  some
> do_page_fault() pid=... command='conftest' ... during glibc rebuild, I am
> not sure; I do not find any trace in my logs? ).

See the same, particularly running the gcc testsuite.  The program
which see to generate the do_page_fault's seems to be expect.  It
gets into a state where /var fills with log messages.

> Just inetd seems to make the system panic after a simple telnet:
> ...
> Kernel fault: Code=15 regs=...
> ...
> 
> David is it the problem of bootstrap you spoke about binutils?

No.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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On Wed, 20 Feb 2002, Holst, Richard G (Dick), PROSH wrote:

> When I boot my D server running parisc LInuxLinux .9.3. the graphics monitor is the console. I set the hardware path for the console to the hardware address of the graphics (vga) card. I get the TUX penguin in the upper left of the monitor and all the boot message and all the rc startup messages. Just when the system is ready to give me a login prompt, the out of the console shift to my serial terminal. I would appear that I need a line in my /etc/inittab that will cause the login prompt to appear on the graphics monitor. Can someone tell me how to get the login prompt to appear on my graphics monitor instead of my serial terminal please.

I believe this is in the readme file on parisc-linux.org, and has been
since about 0.5 (it bit me also). Check the FAQ - 'boots on STI console
but no login prompt' is in there...




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Use
    $ cvs -d :pserver:anonymous@cvs.parisc-linux.org:/var/cvs login
not
    $ cvs -d :pserver:anonymous@cvs.parisc-linux.org:/var/cvs/ login



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Subject: [parisc-linux] Strange serial behaviour on C160
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I am seeing weird serial behaviour on my C160......

Before upgrading from HP-UX to Linux I had two perfectly functioning
serial ports on my C160. I now appear to have THREE serial ports -
ttyS[0-2].

ttyS0 works perfectly
ttyS1 goes somewhere - not found where yet
ttyS2 goes to my second serial port but does not work at all well. A
simple cat of a file to the device results in the file appearing on a
terminal just a few characters at a time & incredibly slowly. All serial
ports have the same settings & ttyS0 has no problems (I use it for the
console).

I checked a C110 & found no problems there - just 2 perfect serial ports.

Anyone have any ideas?

TIA
PeteM




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On Wed, Feb 20, 2002 at 10:37:13AM -0700, Paul Bame wrote:
> 
> Use
>     $ cvs -d :pserver:anonymous@cvs.parisc-linux.org:/var/cvs login
> not
>     $ cvs -d :pserver:anonymous@cvs.parisc-linux.org:/var/cvs/ login

Excellent. Works now.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Confucius says: He who play in root, eventually kill tree.




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On Wed, Feb 20, 2002 at 06:59:00PM +0100, Peter Mottram wrote:
> Before upgrading from HP-UX to Linux I had two perfectly functioning
> serial ports on my C160. I now appear to have THREE serial ports -
> ttyS[0-2].

Hehe.. yeah, that was the case for quite a long time :-)

> ttyS0 works perfectly
> ttyS1 goes somewhere - not found where yet
> ttyS2 goes to my second serial port but does not work at all well. A
> simple cat of a file to the device results in the file appearing on a
> terminal just a few characters at a time & incredibly slowly. All serial
> ports have the same settings & ttyS0 has no problems (I use it for the
> console).

If you could upgrade to the latest kernel, you will find the additional
serial port gone again.  I hadn't heard about the speed problems before,
so if you could tell me whether they're still present with most-recent
kernel, that would be very helpful.  Thanks!

For those who are interested:

Lasi, Dino, Cujo and Wax each have one serial port implemented.
In a C160, there is a Dino, a Lasi and a Wax, so there are 3 serial
port implementations.  However, the one in Dino isn't connected to
anything, so ideally we wouldn't report it.  It only confuses people.

So firmware tells us about the ones on Lasi and on Wax (at 8/16/4 and
8/20/2 respectively), and doesn't tell us about the one underneath Dino.
But the parent of Dino is U2 which is a bus adapter.  And we know there
are devices underneath bus adapters which firmware doesn't tell us about,
they have to be discovered by an architected bus walk.  When we do this
buswalk, we find the serial port underneath Dino at 8/3.

We can distinguish this port from a real serial port because it's not
assigned an IRQ.  However, there was a bug in the irq-assigning code
which happened to assign an irq to the device in exactly this case.
So we thought it was legitimate when it wasn't.  I fixed that bug in
the last couple of weeks and now my C360 (one port on Lasi, one on Dino,
non-existent one on Cujo) only reports 2 serial ports.

-- 
Revolutions do not require corporate support.



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Subject: [parisc-linux] Is there a hard-drive image for PA-RISC Linux 0.9.3?
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I see that 710 is now supported by PA-RISC Linux.

I see that there are ISO images available. Can these be extracted to place
on a SCSI disk?

If so, any ideas on how? (For example, how do I get grub or lilo setup
correctly?)

My HP 710 computer currently has operating system from 1997:

 MkLinux for HP PA-RISC
 Release 1.1 (Linux 2.0.32-osfmach3 on a hp_pa)

It was installed by using a diks image that copied to the disk using
dd(1). I am hoping I can do the same again.

Thanks,

   Jeremy C. Reed
   http://www.reedmedia.net/





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Subject: Re: [parisc-linux] Is there a hard-drive image for PA-RISC Linux
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On Wed, 20 Feb 2002, Jeremy C. Reed wrote:

> I see that 710 is now supported by PA-RISC Linux.
>
> I see that there are ISO images available. Can these be extracted to place
> on a SCSI disk?

Isn't it possible to use 'dd if=palinux.iso of=/dev/sda' and end up with a
"CD on a disk"? Or somethign similar? Would require a disposable 1G SCSI
drive, but it'd at least work...

>
> If so, any ideas on how? (For example, how do I get grub or lilo setup
> correctly?)
>
> My HP 710 computer currently has operating system from 1997:
>
>  MkLinux for HP PA-RISC
>  Release 1.1 (Linux 2.0.32-osfmach3 on a hp_pa)
>
> It was installed by using a diks image that copied to the disk using
> dd(1). I am hoping I can do the same again.
>
> Thanks,
>
>    Jeremy C. Reed
>    http://www.reedmedia.net/
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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Tom wrote:
> On Wed, 20 Feb 2002, Jeremy C. Reed wrote:
> 
> 
>>I see that 710 is now supported by PA-RISC Linux.
>>
>>I see that there are ISO images available. Can these be extracted to place
>>on a SCSI disk?
>>
> 
> Isn't it possible to use 'dd if=palinux.iso of=/dev/sda' and end up with a
> "CD on a disk"? Or somethign similar? Would require a disposable 1G SCSI
> drive, but it'd at least work...

Assuming no "reasonable assumptions" made by the boot ROM precludes it 
("iso9660 on a disc? No.") Worst case is mount the iso image on another 
linux box, and use nfsroot/rboot. Personally, I'd just find a friend 
with a CD burner and write on CD/R media. Lot less cantankerous, believe me!





-- 
____               .:.                 ____
Bryan W. Headley - bwheadley@earthlink.net




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On Wed, 20 Feb 2002, Bryan W. Headley wrote:

> > Isn't it possible to use 'dd if=palinux.iso of=/dev/sda' and end up with a
> > "CD on a disk"? Or somethign similar? Would require a disposable 1G SCSI
> > drive, but it'd at least work...

I didn't think that this was possible, but I can give it a try.

> Assuming no "reasonable assumptions" made by the boot ROM precludes it
> ("iso9660 on a disc? No.") Worst case is mount the iso image on another
> linux box, and use nfsroot/rboot. Personally, I'd just find a friend
> with a CD burner and write on CD/R media. Lot less cantankerous, believe me!

Wel, I have the CD burner; I just don't have a SCSI CD drive for my HP 710 :)

   Jeremy C. Reed
   http://www.reedmedia.net/




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On Wed, Feb 20, 2002 at 06:21:24PM -0800, Jeremy C. Reed wrote:
> Wel, I have the CD burner; I just don't have a SCSI CD drive for my HP 710 :)

I think you'd be better off netbooting, personally.

-- 
Revolutions do not require corporate support.



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Quoth Tilo Jandt:
> 020218 11:57:49  mysqld started
> Cannot initialize InnoDB as 'innodb_data_file_path' is not set.
> If you do not want to use transactional InnoDB tables, add a line
> skip-innodb
> to the [mysqld] section of init parameters in your my.cnf
> or my.ini. If you want to use InnoDB tables, add for example,
> innodb_data_file_path = ibdata1:30M
> But to get good performance you should adjust for your hardware
> the InnoDB startup options listed in section 2 at
> http://www.innodb.com/ibman.html
> 020218 11:57:51  /usr/sbin/mysqld: Can't find file: './mysql/host.frm' 
> (errno: 13)
> 020218 11:57:51  mysqld ended

The innodb warning you can easily fix by adding the 'skip-innodb' line
as the text there suggests.

> Preparing db table
> Preparing host table
> Preparing user table
> Preparing func table
> Preparing tables_priv table
> Preparing columns_priv table
> Installing all prepared tables
> 020218 11:57:41  /usr/sbin/mysqld: Shutdown Complete
> 
> 
> PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
> This is done with:
> /usr/bin/mysqladmin -u root -p password 'new-password'
> /usr/bin/mysqladmin -u root -h beta -p password 'new-password'
> See the manual for more instructions.
> 
> Please report any problems with the /usr/bin/mysqlbug script!
> 
> The latest information about MySQL is available on the web at
> http://www.mysql.com
> Support MySQL by buying support/licenses at https://order.mysql.com
> 
> ERROR: 1017  Can't find file: './mysql/user.frm' (errno: 13)
> 020218 11:57:42  /usr/sbin/mysqld: Shutdown Complete
> 
> ERROR: 1017  Can't find file: './mysql/db.frm' (errno: 13)
> ERROR: 1017  Can't find file: './mysql/db.frm' (errno: 13)
> 020218 11:57:44  /usr/sbin/mysqld: Shutdown Complete
> 
> But these files (db.frm and user.frm) exists in /var/lib/mysql.
> 
> Does anyone have an idea how to get mysql work?

This probably isn't a linux-hppa problem.  Check:

  - does /etc/mysql/my.cnf have the line "datadir = /var/lib/mysql"?
  - are /var/lib/mysql and /var/lib/mysql/mysql owned by "mysql.mysql"?
  - are the files in /var/lib/mysql/mysql mode 0660?  (-rw-rw----)

If your mysqld is telling us the truth, then it's just having trouble
getting to the files, either because it doesn't know where they are, it
doesn't have permission to read them, or because on of the directories
higher up the tree (eg /var/lib or /var/lib/mysql) is not accessable
for the mysql user (+x).

Try this if you have sudo installed:

beta# sudo -u mysql ls -laR /var/lib/mysql

If the output all looks kosher then it's not an access and permissions
problem, and you'll have to think of something else ...

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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Hi,
looking inside my 712, I noticed that it has a thermocouple or somthing to dectect the temperature in the case.
Tracing back the wires finds that they connect to the mainboard, and on the same connector, theres 2 wires that goto the power supply.
I'd assume this is for a secondry fan?
Anyway, since it goes to the mainboard, does this mean its posible to find out the temperature in software?
Since, if it was purley for fan control, it would be done in hardware, wouldn't it?

Thanks
--Jbit


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On Thu, Feb 21, 2002 at 11:51:46AM +0000, Jbit wrote:
> Hi,
> looking inside my 712, I noticed that it has a thermocouple or somthing to 
> dectect the temperature in the case.
> Tracing back the wires finds that they connect to the mainboard, and on the 
> same connector, theres 2 wires that goto the power supply.
> I'd assume this is for a secondry fan?

According to the manual, the fan shifts ito higher gear, once the
temperature exceeds 30 deg. celsius.

> Anyway, since it goes to the mainboard, does this mean its posible to find 
> out the temperature in software?

THAT would be interesting.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Murphy's Law is recursive.  
Washing your car to make it rain doesn't work. 




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Hi fellow listers,

Is it possible to use PaRisc on HP3000 model 937RX. This machine is a good 
old MPE/iX wich I want to use for testing PaRisc0Linux.

TIA,

Willy Schriemer
System Manager Factory Automation Systems
Philips Semiconductors MOS3 Submicron Waferfab
Building FB 2.018
Gerstweg 2
6534 AE Nijmegen
The Netherlands
Tel. + 31 24 353 2991 or 5716

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<br><font size=2 face="sans-serif">Hi fellow listers,</font>
<br>
<br><font size=2 face="sans-serif">Is it possible to use PaRisc on HP3000 model 937RX. This machine is a good old MPE/iX wich I want to use for testing PaRisc0Linux.</font>
<br>
<br><font size=2 face="sans-serif">TIA,<br>
<br>
Willy Schriemer<br>
System Manager Factory Automation Systems<br>
Philips Semiconductors MOS3 Submicron Waferfab<br>
Building FB 2.018<br>
Gerstweg 2<br>
6534 AE Nijmegen<br>
The Netherlands<br>
Tel. + 31 24 353 2991 or 5716<br>
</font>
--=_alternative 00501D13C1256B67_=--



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On Thu, Feb 21, 2002 at 03:34:50PM +0100, willy.schriemer@philips.com wrote:
> Hi fellow listers,
> 
> Is it possible to use PaRisc on HP3000 model 937RX. This machine is a good 
> old MPE/iX wich I want to use for testing PaRisc0Linux.

As far as I can tell, the closest thing we have in the hwdb right now is
the F10: http://hwdb.parisc-linux.org/view.php3?type=machine&name=F10

This class of machine is full of undocumented devices including the
console, network and scsi.  It will be an awful lot of work to make this
class of machine any use.

-- 
Revolutions do not require corporate support.



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Re:

> Is it possible to use PaRisc on HP3000 model 937RX. This machine is a good 
> old MPE/iX wich I want to use for testing PaRisc0Linux.

Sorry, it's not supported by the current port.  It's the same
hardware as the HP 9000s of the F/G/H x0 series.  The I/O is a little
bit different, and HP hasn't release documentation for it (IIRC).

However, if you want to get rid of it, I saw a post from a user in
Poland last week, asking for an HP 3000 for their personal use.

> Sender:       HP-3000 Systems Discussion <HP3000-L@RAVEN.UTC.EDU>
> From:         Janusz <JRodzewicz@POCZTA.ONET.PL>
> Subject:      Want to buy HP3000 for personal use at home
> 
> Hi,all.
> 
> Looking for used 9xx, <= 5 users.
> 
> Regards
> Janusz.

Stan Sieler




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Subject: [parisc-linux] palo not booting kernel
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 I completed a serial console cd-rom install, ignoring the kernel install
because of cd-rom detection issue (irony?). I booted off 0/vmlinux and
installed 2.4.16-32 via apt-get. Trying to reboot I get the following:

HARD Booted.
palo ipl 0.99 root@palinux Thu Jan 24 14:47:37 MST 2002

Partition Start(MB) End(MB) Id Type
1               1     244   82 swap
2             245     275   f0 Palo
3             276    8678   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 3324993 bytes @ 0xf440000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=/dev/sdb3 HOME=/ console=ttyS0 TERM=vt102
palo_ke
rnel=3/boot/vmlinux'
Selected kernel: /boot/vmlinux from partition 3
offset_read(2, 0x0006c824, 128, 1342193664) can't seek past 221249536
ext2_iget: read errorERROR: open /boot/vmlinux from partition 3 failed

 Also wondering how the Vis EG-PCI support is coming, is
parisc-linux-announce the best way to track this? Anxious to use graphics
console :)

 (I can send anyone interested the issues I've had to date installing
0.9.3 via cd-rom on the B1k).

 Kowtow,

--
Yashy




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On Thursday 21 February 2002 22:54, Yasholomew Yashinski wrote:
>  Also wondering how the Vis EG-PCI support is coming, is
> parisc-linux-announce the best way to track this? Anxious to use graphics
> console :)

It's nearly finished. 
The current CVS version 2.4.17-pa28 now boots my c3000 w/ VisEG PCI and
has working sticon and stifb in case you _boot_ via serial console (after bootup
you may of course use sticon/stifb).
Booting from graphics console will still crash your machine - but we're working on that.

Helge



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Hi all,

I do hope this is not off-topic, but I could not find a hint to my 
problem anywhere else.

I'm running the 0.9.3 distribution on 2 PARISC machines: 
HP 712/80, 64MB RAM and HP 715/100XC, 256 MB RAM

Generally speaking KDE is slow on these machines, but
when I log in from KDM, it takes on _both_ machines about
4..5 minutes to go from KDM login screen to KDE window
manager.

Nothing fancy (wallpaper, fontaliasing, file preview) is enabled,
just a 2 color gradiant background.

What I can see from "top" is that the "kdeinit knotify" process
uses up to 90% CPU for quite a long time; it also seems to run
3 times in a row. Memory usage is neglectable.

When I finally "arrive" on the KDE desktop I get 3 SIGSEGV
(KDE crashmanager) for the 3 "knotify"s plus an error dialog
box saying: "The protocol for the file process died unexpectedly"
(I guess it means that the kio_file process died, but after all that
I have 1 kio_file process running)

After that KDE is usable.

Does anybody have similiar / better / worse experiences with
KDE ?  Any hints what to improve ? Is the KDE package in a
sub-optimal stage ?

Thanks for any input
Thomas

 




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Hi Thomas,

You may try to remove/move away the libarts binaries and libraries 
(dpkg -L libarts).
They regulaty crash here for me too when running the KDE 3 CVS version.
This seems to be related to the fact that we still have issues
with threads on hppa.

Helge

On Friday 22 February 2002 10:07, Thomas Schmid wrote:
> Hi all,
>
> I do hope this is not off-topic, but I could not find a hint to my
> problem anywhere else.
>
> I'm running the 0.9.3 distribution on 2 PARISC machines:
> HP 712/80, 64MB RAM and HP 715/100XC, 256 MB RAM
>
> Generally speaking KDE is slow on these machines, but
> when I log in from KDM, it takes on _both_ machines about
> 4..5 minutes to go from KDM login screen to KDE window
> manager.
>
> Nothing fancy (wallpaper, fontaliasing, file preview) is enabled,
> just a 2 color gradiant background.
>
> What I can see from "top" is that the "kdeinit knotify" process
> uses up to 90% CPU for quite a long time; it also seems to run
> 3 times in a row. Memory usage is neglectable.
>
> When I finally "arrive" on the KDE desktop I get 3 SIGSEGV
> (KDE crashmanager) for the 3 "knotify"s plus an error dialog
> box saying: "The protocol for the file process died unexpectedly"
> (I guess it means that the kio_file process died, but after all that
> I have 1 kio_file process running)
>
> After that KDE is usable.
>
> Does anybody have similiar / better / worse experiences with
> KDE ?  Any hints what to improve ? Is the KDE package in a
> sub-optimal stage ?
>
> Thanks for any input
> Thomas
>
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
Helge Deller
SAP AG - LinuxLab and Unix Platforms
email: helge.deller@sap.com
Phone: +49 6227 7 - 67783



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On Thursday 21 February 2002 22:54, Yasholomew Yashinski wrote:
> I booted off 0/vmlinux and installed 2.4.16-32 via apt-get. 
> Trying to reboot I get the following:
> <crash>

Did you modified your /etc/palo.conf and run palo afterwards ?
In doubt please read the FAQ.

Helge



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Subject: [parisc-linux] Failed Firmware Update...
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Hi all,

well, after following some threads in this list about firmware updates,
I decided to update my 715 to the current 1.6, up from 1.1.

Update so far went OK, but when it tried to reboot, it complained about
a memory error and halted the system. Rebooting afterwards stopped
at the "LED"-level; it gave me a "HPMC Cache Error", a "High Priority
Machine Check Cache Error". And that was it, no monitor, no nothing....

- Question: The machine I (now) had was a 715/100XC; can it be that the
1.6 firmware update is not suitable for that variant of the 715/100 ?
- Is there still hope to revive the machine ? (without HP's support...)

A bit frustrated....
Thomas



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From: Peter Mottram <peter@petescaff.com>
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Subject: [parisc-linux] Re: Strange serial behaviour on C160
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I now have 2.4.17-pa28 running on my C160 & things have improved but are
not yet perfect as I still have three serial ports......

/dev/ttyS0, UART: 16550A, Port: 0x0000, IRQ: 90
/dev/ttyS1, UART: 16550A, Port: 0x0000, IRQ: 121
/dev/ttyS2, UART: 16550A, Port: 0x0000, IRQ: 121

Of these devices the functional ports are 0 & 2. The weird speed problems
have gone away so I can use my second serial port without problems - it is
just a little odd that the rogue ttyS1 still shows up.

Anything I can usefully look at to try to help sort this out?

TIA
PeteM

On Wed, 20 Feb 2002, Matthew Wilcox wrote:

> On Wed, Feb 20, 2002 at 06:59:00PM +0100, Peter Mottram wrote:
> > Before upgrading from HP-UX to Linux I had two perfectly functioning
> > serial ports on my C160. I now appear to have THREE serial ports -
> > ttyS[0-2].
>
> Hehe.. yeah, that was the case for quite a long time :-)
>
> > ttyS0 works perfectly
> > ttyS1 goes somewhere - not found where yet
> > ttyS2 goes to my second serial port but does not work at all well. A
> > simple cat of a file to the device results in the file appearing on a
> > terminal just a few characters at a time & incredibly slowly. All serial
> > ports have the same settings & ttyS0 has no problems (I use it for the
> > console).
>
> If you could upgrade to the latest kernel, you will find the additional
> serial port gone again.  I hadn't heard about the speed problems before,
> so if you could tell me whether they're still present with most-recent
> kernel, that would be very helpful.  Thanks!

[SNIP]





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What is the meaning of these?
At the time this happened, the machine was not used. The Apache
error.log says:

[Fri Feb 22 06:27:12 2002] [notice] SIGUSR1 received.  Doing graceful restart
[Fri Feb 22 06:27:15 2002] [notice] Apache/1.3.22 (Unix) Debian GNU/Linux configured -- resuming normal operations
[Fri Feb 22 06:27:15 2002] [notice] Accept mutex: sysvsem (Default: sysvsem)
[Fri Feb 22 06:27:15 2002] [notice] child pid 303 exit signal Segmentation fault (11)
[Fri Feb 22 06:27:15 2002] [notice] child pid 302 exit signal Segmentation fault (11)
[Fri Feb 22 06:27:15 2002] [notice] child pid 300 exit signal Segmentation fault (11)
[Fri Feb 22 06:27:15 2002] [notice] child pid 299 exit signal Segmentation fault (11)
[Fri Feb 22 06:27:15 2002] [notice] child pid 298 exit signal Segmentation fault (11)

I guess cron.daily must have kicked in, but why would apache crash on
a restart?

Feb 22 06:27:14 gecko kernel: 
Feb 22 06:27:14 gecko kernel: do_page_fault() pid=298 command='apache' type=7 address=0x40380ad3
Feb 22 06:27:14 gecko kernel: vm_start = 0x40380000, vm_end = 0x40382000
Feb 22 06:27:14 gecko kernel: 
Feb 22 06:27:14 gecko kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Feb 22 06:27:14 gecko kernel: PSW: 00000000000001000000000000001111 Not tainted
Feb 22 06:27:14 gecko kernel: r00-03  00000000 400263e0 4038119f faf00600
Feb 22 06:27:14 gecko kernel: r04-07  40391588 faf0068c 00079ec0 0000006c
Feb 22 06:27:14 gecko kernel: r08-11  00000006 faf0066c 00000002 0000000f
Feb 22 06:27:14 gecko kernel: r12-15  faf0068c ffffffc4 40026604 00061700
Feb 22 06:27:14 gecko kernel: r16-19  00066700 00049000 00066700 40391588
Feb 22 06:27:14 gecko kernel: r20-23  00000001 40391588 40381184 400263f4
Feb 22 06:27:14 gecko kernel: r24-27  40026604 40381184 00079ec0 00061700
Feb 22 06:27:14 gecko kernel: r28-31  40027902 000003b5 faf00740 4000d2bb
Feb 22 06:27:14 gecko kernel: sr0-3   0000043b 0000043b 00000000 0000043b
Feb 22 06:27:14 gecko kernel: sr4-7   0000043b 0000043b 0000043b 0000043b
Feb 22 06:27:14 gecko kernel: 
Feb 22 06:27:14 gecko kernel: IASQ: 0000043b 0000043b IAOQ: 40380ad3 40380ad7
Feb 22 06:27:14 gecko kernel:  IIR: 08000240    ISR: 0000043b  IOR: 40380adc
Feb 22 06:27:14 gecko kernel:  CPU:        0   CR30: 10bd0000 CR31: 10330000
Feb 22 06:27:14 gecko kernel:  ORIG_R28: faf00798
Feb 22 06:27:14 gecko kernel: 
Feb 22 06:27:14 gecko kernel: do_page_fault() pid=299 command='apache' type=7 address=0x40380ad3
Feb 22 06:27:14 gecko kernel: vm_start = 0x40380000, vm_end = 0x40382000
Feb 22 06:27:14 gecko kernel: 
Feb 22 06:27:14 gecko kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Feb 22 06:27:14 gecko kernel: PSW: 00000000000001000000000000001111 Not tainted
Feb 22 06:27:14 gecko kernel: r00-03  00000000 400263e0 4038119f faf00600
Feb 22 06:27:15 gecko kernel: r04-07  40391588 faf0068c 00079ec0 0000006c
Feb 22 06:27:15 gecko kernel: r08-11  00000006 faf0066c 00000002 0000000f
Feb 22 06:27:15 gecko kernel: r12-15  faf0068c ffffffc4 40026604 00061700
Feb 22 06:27:15 gecko kernel: r16-19  00066700 00049000 00066700 40391588
Feb 22 06:27:15 gecko kernel: r20-23  00000001 40391588 40381184 400263f4
Feb 22 06:27:15 gecko kernel: r24-27  40026604 40381184 00079ec0 00061700
Feb 22 06:27:15 gecko kernel: r28-31  40027902 000003b5 faf00740 4000d2bb
Feb 22 06:27:15 gecko kernel: sr0-3   0000043d 0000043d 00000000 0000043d
Feb 22 06:27:15 gecko kernel: sr4-7   0000043d 0000043d 0000043d 0000043d
Feb 22 06:27:15 gecko kernel: 
Feb 22 06:27:15 gecko kernel: IASQ: 0000043d 0000043d IAOQ: 40380ad3 40380ad7
Feb 22 06:27:15 gecko kernel:  IIR: 08000240    ISR: 0000043d  IOR: 40380adc
Feb 22 06:27:15 gecko kernel:  CPU:        0   CR30: 10b8c000 CR31: 10330000
Feb 22 06:27:15 gecko kernel:  ORIG_R28: faf00798
Feb 22 06:27:15 gecko kernel: 
Feb 22 06:27:15 gecko kernel: do_page_fault() pid=303 command='apache' type=7 address=0x40380ad3
Feb 22 06:27:15 gecko kernel: vm_start = 0x40380000, vm_end = 0x40382000
Feb 22 06:27:15 gecko kernel: 
Feb 22 06:27:15 gecko kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Feb 22 06:27:15 gecko kernel: PSW: 00000000000001000000000000001111 Not tainted
Feb 22 06:27:15 gecko kernel: r00-03  00000000 400263e0 4038119f faf00600
Feb 22 06:27:15 gecko kernel: r04-07  40391588 faf0068c 00079ec0 0000006c
Feb 22 06:27:15 gecko kernel: r08-11  00000006 faf0066c 00000002 0000000f
Feb 22 06:27:15 gecko kernel: r12-15  faf0068c ffffffc4 40026604 00061700
Feb 22 06:27:15 gecko kernel: r16-19  00066700 00049000 00066700 40391588
Feb 22 06:27:15 gecko kernel: r20-23  00000001 40391588 40381184 400263f4
Feb 22 06:27:15 gecko kernel: r24-27  40026604 40381184 00079ec0 00061700
Feb 22 06:27:15 gecko kernel: r28-31  40027902 000003b5 faf00740 4000d2bb
Feb 22 06:27:15 gecko kernel: sr0-3   00000446 00000446 00000000 00000446
Feb 22 06:27:15 gecko kernel: sr4-7   00000446 00000446 00000446 00000446
Feb 22 06:27:15 gecko kernel: 
Feb 22 06:27:15 gecko kernel: IASQ: 00000446 00000446 IAOQ: 40380ad3 40380ad7
Feb 22 06:27:15 gecko kernel:  IIR: 08000240    ISR: 00000446  IOR: 40380adc
Feb 22 06:27:15 gecko kernel:  CPU:        0   CR30: 10b44000 CR31: 10330000
Feb 22 06:27:15 gecko kernel:  ORIG_R28: faf00798
Feb 22 06:27:15 gecko kernel: 
Feb 22 06:27:15 gecko kernel: do_page_fault() pid=302 command='apache' type=7 address=0x40380ad3
Feb 22 06:27:15 gecko kernel: vm_start = 0x40380000, vm_end = 0x40382000
Feb 22 06:27:15 gecko kernel: 
Feb 22 06:27:15 gecko kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Feb 22 06:27:15 gecko kernel: PSW: 00000000000001000000000000001111 Not tainted
Feb 22 06:27:15 gecko kernel: r00-03  00000000 400263e0 4038119f faf00600
Feb 22 06:27:15 gecko kernel: r04-07  40391588 faf0068c 00079ec0 0000006c
Feb 22 06:27:15 gecko kernel: r08-11  00000006 faf0066c 00000002 0000000f
Feb 22 06:27:15 gecko kernel: r12-15  faf0068c ffffffc4 40026604 00061700
Feb 22 06:27:15 gecko kernel: r16-19  00066700 00049000 00066700 40391588
Feb 22 06:27:15 gecko kernel: r20-23  00000001 40391588 40381184 400263f4
Feb 22 06:27:15 gecko kernel: r24-27  40026604 40381184 00079ec0 00061700
Feb 22 06:27:15 gecko kernel: r28-31  40027902 000003b5 faf00740 4000d2bb
Feb 22 06:27:15 gecko kernel: sr0-3   00000444 00000444 00000000 00000444
Feb 22 06:27:15 gecko kernel: sr4-7   00000444 00000444 00000444 00000444
Feb 22 06:27:15 gecko kernel: 
Feb 22 06:27:15 gecko kernel: IASQ: 00000444 00000444 IAOQ: 40380ad3 40380ad7
Feb 22 06:27:15 gecko kernel:  IIR: 08000240    ISR: 00000444  IOR: 40380adc
Feb 22 06:27:15 gecko kernel:  CPU:        0   CR30: 10b0c000 CR31: 10330000
Feb 22 06:27:15 gecko kernel:  ORIG_R28: faf00798
Feb 22 06:27:15 gecko kernel: 
Feb 22 06:27:15 gecko kernel: do_page_fault() pid=300 command='apache' type=7 address=0x40380ad3
Feb 22 06:27:15 gecko kernel: vm_start = 0x40380000, vm_end = 0x40382000
Feb 22 06:27:15 gecko kernel: 
Feb 22 06:27:15 gecko kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Feb 22 06:27:15 gecko kernel: PSW: 00000000000001000000000000001111 Not tainted
Feb 22 06:27:15 gecko kernel: r00-03  00000000 400263e0 4038119f faf00600
Feb 22 06:27:15 gecko kernel: r04-07  40391588 faf0068c 00079ec0 0000006c
Feb 22 06:27:15 gecko kernel: r08-11  00000006 faf0066c 00000002 0000000f
Feb 22 06:27:15 gecko kernel: r12-15  faf0068c ffffffc4 40026604 00061700
Feb 22 06:27:15 gecko kernel: r16-19  00066700 00049000 00066700 40391588
Feb 22 06:27:15 gecko kernel: r20-23  00000001 40391588 40381184 400263f4
Feb 22 06:27:15 gecko kernel: r24-27  40026604 40381184 00079ec0 00061700
Feb 22 06:27:15 gecko kernel: r28-31  40027902 000003b5 faf00740 4000d2bb
Feb 22 06:27:15 gecko kernel: sr0-3   0000043f 0000043f 00000000 0000043f
Feb 22 06:27:15 gecko kernel: sr4-7   0000043f 0000043f 0000043f 0000043f
Feb 22 06:27:15 gecko kernel: 
Feb 22 06:27:15 gecko kernel: IASQ: 0000043f 0000043f IAOQ: 40380ad3 40380ad7
Feb 22 06:27:15 gecko kernel:  IIR: 08000240    ISR: 0000043f  IOR: 40380adc
Feb 22 06:27:15 gecko kernel:  CPU:        0   CR30: 10bdc000 CR31: 10330000
Feb 22 06:27:15 gecko kernel:  ORIG_R28: faf00798

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
C(++) is a write-only, high-level assembler language. -- Stefan Van Baelen.




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----- Original Message -----
From: "James S" <smith-james@home.com>
To: "Michael Wood" <mwood@its.uct.ac.za>
Sent: Friday, February 22, 2002 10:46 AM
Subject: Re: [parisc-linux] Printing on a 712/60


> > On Tue, Feb 19, 2002 at 01:46:14PM -0500, James S wrote:
> > > Every time i send a printjob to the local printer port the
> > > machine locks solid
> > >
> > > anybody else having this problem ?
> > >
> > > i've got an HP deskjet 500 attached using a standard parallel
> > > cable using the cups printing system, although i tried lpd &
> > > got the same result
> >
> > I think this is the problem that happens when the kernel doesn't
> > find /sbin/hotplug or whatever.  Try searching for hotplug in
> > the archives.  Or just apt-get install hotplug and see if the
> > problem goes away :)
> >
> nope - same problem
>
> i was wondering how a usb package could affect a parallel printer.......
>
> i've also noticed that there is a bug in the ps printing renderer which
> causes the printjobs to bail out half way through, but this can be fixed
by
> adding the gimp printing filter & printing through that instead.
>
> so, printing to a windows shared printer 1, same printer on local port 0
>
> i'm using kernel 2.4.17-32, btw & all the latest cups packages
>
> Thanks
>
> James S
>
>
>
>
>
>
>
>
>
>
>




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Subject: Fw: [parisc-linux] Problems running KDE on PARISC
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----- Original Message -----
From: "James S" <smith-james@home.com>
To: "Thomas Schmid" <Thomas.Schmid@ascom.ch>
Sent: Friday, February 22, 2002 10:31 AM
Subject: Re: [parisc-linux] Problems running KDE on PARISC


> > Generally speaking KDE is slow on these machines, but
> > when I log in from KDM, it takes on _both_ machines about
> > 4..5 minutes to go from KDM login screen to KDE window
> > manager.
> >
>
> i was running kde as well, but found the wait time for applications to
start
> too long, so i switched to windowmaker - very configurable & much quicker
to
> load, but it also keeps the ability to run gnome & kde apps.
>
> just my ha'pennys worth...
>
> James S
>
>
>




From - Thu Nov 08 21:21:50 2018
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Subject: Re: [parisc-linux] Re: Strange serial behaviour on C160
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On Fri, Feb 22, 2002 at 05:58:04PM +0100, Peter Mottram wrote:
> I now have 2.4.17-pa28 running on my C160 & things have improved but are
> not yet perfect as I still have three serial ports......
> 
> /dev/ttyS0, UART: 16550A, Port: 0x0000, IRQ: 90
> /dev/ttyS1, UART: 16550A, Port: 0x0000, IRQ: 121
> /dev/ttyS2, UART: 16550A, Port: 0x0000, IRQ: 121

Umm.. where are you getting this output from?  The serial devices don't
show up in port space but in io memory.  Can you provide me with a dmesg
(by private mail, no need to clog the list archive; I'll reply with the
relevant bits)?

> Of these devices the functional ports are 0 & 2. The weird speed problems
> have gone away so I can use my second serial port without problems - it is
> just a little odd that the rogue ttyS1 still shows up.

Yes, it is.  Glad to hear the speed problems are gone though.

-- 
Revolutions do not require corporate support.



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On Thu, Feb 21, 2002 at 04:54:11PM -0500, Yasholomew Yashinski wrote:
> Partition Start(MB) End(MB) Id Type
> 1               1     244   82 swap
> 2             245     275   f0 Palo
> 3             276    8678   83 ext2
> 
> PALO(F0) partition contains:
>     0/vmlinux32 3324993 bytes @ 0xf440000
> 
> Information: No console specified on kernel command line. This is normal.
> PALO will choose the console currently used by firmware (serial).
> Command line for kernel: 'root=/dev/sdb3 HOME=/ console=ttyS0 TERM=vt102
> palo_ke
> rnel=3/boot/vmlinux'
> Selected kernel: /boot/vmlinux from partition 3
> offset_read(2, 0x0006c824, 128, 1342193664) can't seek past 221249536
> ext2_iget: read errorERROR: open /boot/vmlinux from partition 3 failed

palo doesn't support booting from partitions >2GB

-- 
Revolutions do not require corporate support.



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On Sat, Feb 23, 2002 at 12:11:38AM +0100, Peter Mottram wrote:
> Found devices:
> 2. Dino PCI Bridge (13) at 0xf1600000 [8/0], versions 0x680, 0x1, 0xa
> 4. Dino RS-232 (10) at 0xf1603000 [8/3], versions 0x7, 0x0, 0x8c
> 7. Raven U/L2 Core BA (11) at 0xffd00000 [8/16], versions 0x3b, 0x0, 0x81,  additional addresses: 0xffd0c000 0xffc00000
> 10. Raven U/L2 Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x3b, 0x0, 0x8c
> 15. Raven Backplane Wax BA (11) at 0xffe00000 [8/20], versions 0x17, 0x0, 0x8e
> 17. Raven Backplane RS-232 (10) at 0xffe02000 [8/20/2], versions 0x17, 0x0, 0x8c
> Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
> ttyS00 at iomem 0xffd05800 (irq = 90) is a 16550A
> ttyS01 at iomem 0xf1603800 (irq = 121) is a 16550A
> ttyS02 at iomem 0xffe02800 (irq = 121) is a 16550A

Hah, figured out the bug.  It's all my fault!  Now that Dino has stopped
accidentally walking its siblings and finding a serial port to assign
an IRQ to, Wax is intentionally walking its siblings to assign an IRQ
and finding Dino's serial port :-)

Here's the code:

        fixup_child_irqs(dev, wax->busdev_region->data.irqbase,
                        wax_choose_irq);
        /* On 715-class machines, Wax EISA is a sibling of Wax, not a child.
         * On B/C/J class machines, wax_choose_irq won't match any device so
         * no harm will be done.
         */
        fixup_child_irqs(dev->parent, wax->busdev_region->data.irqbase,
                        wax_choose_irq);

The comment is quite the smoking gun.  Ideally, I would conditionalise it
on wax->version, but that's not currently being read; WAX_VER is undefined
and I don't have proper Wax documentation (if anyone happens to have
more Wax documentation than just the EISA portions, please let me know).
So, for the moment, let's try something along the lines of:

diff -u -p -r1.20 wax.c
--- drivers/gsc/wax.c   2002/02/05 23:59:35     1.20
+++ drivers/gsc/wax.c   2002/02/22 23:45:30
@@ -128,12 +128,11 @@ wax_init_chip(struct parisc_device *dev)
 
 	fixup_child_irqs(dev, wax->busdev_region->data.irqbase,
 			wax_choose_irq);
-	/* On 715-class machines, Wax EISA is a sibling of Wax, not a child.
-	 * On B/C/J class machines, wax_choose_irq won't match any device so
-	 * no harm will be done.
-	 */
-	fixup_child_irqs(dev->parent, wax->busdev_region->data.irqbase,
-			wax_choose_irq);
+	/* On 715-class machines, Wax EISA is a sibling of Wax, not a child. */
+	if (dev->parent->id.hw_type != HPHW_IOA) {
+		fixup_child_irqs(dev->parent, wax->busdev_region->data.irqbase,
+				wax_choose_irq);
+	}
 
 	/* Register the HIL-Keyboard NMI-Handler */
 #ifdef CONFIG_HIL

It compiles, I haven't checked it boots...

-- 
Revolutions do not require corporate support.



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"Thomas Schmid" wrote:
> well, after following some threads in this list about firmware updates,
> I decided to update my 715 to the current 1.6, up from 1.1.
...
> - Question: The machine I (now) had was a 715/100XC; can it be that the
> 1.6 firmware update is not suitable for that variant of the 715/100 ?

That's correct. latest firmware for 715/100XC was v 1.2.

> - Is there still hope to revive the machine ? (without HP's support...)

Maybe.
You need to get access to a "dagger" card that is loaded with
v1.2 and it can be blasted on the box. I have such a card but
it currently has 712 firmware on it.

hth,
grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253



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Yasholomew Yashinski wrote:
>  Going through the install now, via serial console. Everything was working
> fine until I tried to install a kernel from the cdrom:

Is this with 0.9.3 CD image?
Read the errata...CD-ROM isn't support by the kernel on the CD.
More recent kernels have fixed the CD-ROM (tnx Fleedwood!)
support for suckyio systems.



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> >  Going through the install now, via serial console. Everything was working
> > fine until I tried to install a kernel from the cdrom:
>
> Is this with 0.9.3 CD image?
> Read the errata...CD-ROM isn't support by the kernel on the CD.
> More recent kernels have fixed the CD-ROM (tnx Fleedwood!)
> support for suckyio systems.

 I installed it for a third time creating a smaller /boot partition in
order for palo to work, and a net kernel (2.4.17 IIRC) installed
successfully. I have since upgraded to pa28 in order for my framebuffer to
work. I apt-get'd cvs and tried to run:

~$ cvs -d :pserver:anonymous@cvs.parisc-linux.org:/var/cvs/ login
Logging in to :pserver:anonymous@cvs.parisc-linux.org:2401/var/cvs/
CVS password:  # no password, just CR
cvs [login aborted]: recv() from server cvs.parisc-linux.org: Connection
reset by peer

 Do I need any extra configuration, this has been happening since
yesterday? How do I switch from stifb to sticon (I just apt-get'd
xfree86)?

 I'd just like to confirm:
eth0: Setting half-duplex based on MII#1 link partner capability of 0021.
 is correct?

 Everything else appears to be working great.

 Thanks in Advance,

--
Yashy







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Jbit wrote:
...
> Since, if it was purley for fan control, it would be done in hardware,
> wouldn't it?

Caveat: I'm a SW engineer and this is from memory.

The fan speed is *generally* controlled by HW with PDC just setting
the "ramp" in HW registers. Some servers might "expose" the
temperature reading. I doubt the 712 does.

grant



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Yasholomew Yashinski wrote:
...
> ~$ cvs -d :pserver:anonymous@cvs.parisc-linux.org:/var/cvs/ login

Paul Bame said to drop the trailing slash.
I see, the "Build the Kernel" web page has the error:
	http://www.parisc-linux.org/kernel/index.html

I'll see if I can fix that.

grant



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On Saturday 23 February 2002 07:50, Yasholomew Yashinski wrote:
> How do I switch from stifb to sticon (I just apt-get'd xfree86)?

stifb supersedes sticon and you won't be able to run X11 on sticon -
so stifb is what you want and if you see TUX at bootup your
kernel stifb driver is active.

In your .config you'll find:		for:
CONFIG_FB_STI=y			-> stifb
CONFIG_FBCON_STI=y		-> stifb
CONFIG_STI_CONSOLE=y	-> sticon
Leave all enabled and you will get the best graphics support which
we currently support on your system.

>  I'd just like to confirm:
> eth0: Setting half-duplex based on MII#1 link partner capability of 0021.
>  is correct?

It's OK, you are just connected to a hulf-duplex partner.

Helge



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If you think WindowMaker is fast and configurable ... try BlackBox ;)
----- Original Message -----
From: "James S" <smith-james@home.com>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Friday, February 22, 2002 6:31 PM
Subject: Fw: [parisc-linux] Problems running KDE on PARISC


>
> ----- Original Message -----
> From: "James S" <smith-james@home.com>
> To: "Thomas Schmid" <Thomas.Schmid@ascom.ch>
> Sent: Friday, February 22, 2002 10:31 AM
> Subject: Re: [parisc-linux] Problems running KDE on PARISC
>
>
> > > Generally speaking KDE is slow on these machines, but
> > > when I log in from KDM, it takes on _both_ machines about
> > > 4..5 minutes to go from KDM login screen to KDE window
> > > manager.
> > >
> >
> > i was running kde as well, but found the wait time for applications to
> start
> > too long, so i switched to windowmaker - very configurable & much
quicker
> to
> > load, but it also keeps the ability to run gnome & kde apps.
> >
> > just my ha'pennys worth...
> >
> > James S
> >
> >
> >
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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Hello List, 


	I have an HP D350 that I would like to find a video card
for..  Anyone know what kind of video card this beast will take and where
I might find one? I attempted ebay but since I really don't know the name
of what im looking for it was a dead end. 




Thanks!



-Brian
bsd@bsdman.org




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Subject: [parisc-linux] Problem installing 0.9.3 on 715/100XC
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Hi guys, I'm trying to install 0.9.3 on a 715/100XC and have run into a 
problem.

'sea scsi' shows I have:

scsi.6.0	SEAGATE ST32151N
scsi.2.0	TOSHIBA CD-ROM XM-3701TA

'sea ipl' shows the CD-ROM

So I issue 'boot scsi.2.0 ipl' and the get the following:

Attempting to boot.
Loading Initial Program Loader
ERROR: Cannot load IPL, error detected
Boot process failed. press <ESCAPE> to Continue

md5sums on the iso image check out and I've burned a couple of cd's just in 
case the first was dodgy.
The Toshiba CD-ROM is known to work and boots my SGI Indy just fine.

This machine has BootRom Version 1.1, could this be causing a problem?

Where do I go from here?

Thanks for any help,
Nathan.



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Subject: Re: [parisc-linux] Problem installing 0.9.3 on 715/100XC
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On Sat, Feb 23, 2002 at 01:52:10PM +0000, nsc wrote:

> 'sea ipl' shows the CD-ROM
> 
> So I issue 'boot scsi.2.0 ipl' and the get the following:

For mee "boot scsi.2.0" was sufficient.

> This machine has BootRom Version 1.1, could this be causing a problem?

You could try updating the BootRom via bootp/tftp, but booting from
CDROM is something even the buggiest rom MUST handle.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
(S)he's off round the building trying to find who has tured off which router, or have they just unplugged our link to the outside world. --Ian (God they both happened in one week) Dobbie ian@muscle.kcl.ac.uk




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On Saturday 23 Feb 2002 1:58 pm, Ralf Hildebrandt wrote:

> > So I issue 'boot scsi.2.0 ipl' and the get the following:
>
> For mee "boot scsi.2.0" was sufficient.
>

Same result but with a "graphical display" instead of text only.

As I understand it adding the ipl to the boot command just means you get the 
text interface.

Thanks,
Nathan.




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Turns out this was a problem with the CD-ROM after all. I pulled a Philips 
CDRW drive out of another machine and installed it internally and all is 
working now :-)

Cheers,
Nathan.


----------  Forwarded Message  ----------

Subject: [parisc-linux] Problem installing 0.9.3 on 715/100XC
Date: Sat, 23 Feb 2002 13:52:10 +0000
From: nsc <nsc@connectednet.co.uk>
To: parisc-linux@lists.parisc-linux.org

Hi guys, I'm trying to install 0.9.3 on a 715/100XC and have run into a
problem.

'sea scsi' shows I have:

scsi.6.0	SEAGATE ST32151N
scsi.2.0	TOSHIBA CD-ROM XM-3701TA

'sea ipl' shows the CD-ROM

So I issue 'boot scsi.2.0 ipl' and the get the following:

Attempting to boot.
Loading Initial Program Loader
ERROR: Cannot load IPL, error detected
Boot process failed. press <ESCAPE> to Continue

md5sums on the iso image check out and I've burned a couple of cd's just in
case the first was dodgy.
The Toshiba CD-ROM is known to work and boots my SGI Indy just fine.

This machine has BootRom Version 1.1, could this be causing a problem?

Where do I go from here?

Thanks for any help,
Nathan.

_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-------------------------------------------------------



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Subject: Re: [parisc-linux] Problem installing 0.9.3 on 715/100XC
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Ralf Hildebrandt wrote:
> > This machine has BootRom Version 1.1, could this be causing a problem?
> 
> You could try updating the BootRom via bootp/tftp,

If version 1.2 isn't available from HP firmware ftp site (see the FAQ),
then I'd not updated the 715/100XC.  If it is available, then the buglist
will be in the notes along with the firmware update.

> but booting from
> CDROM is something even the buggiest rom MUST handle.

THe CD-ROM might behave in some way that confuses the PDC.
It's only a bug if that CD-ROM was shipped with the machine.
ie, it's a tested and supported configuration.
That's why I keep harping about the SCSI device jumper settings.

grant



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Subject: [parisc-linux] gcc 2.95
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I have just installed the debian hppa port, and I am happy to have
an alternative to HP-UX.  I am having a lot of problems with gcc 3.0,
though and I would like to try gcc 2.95 or so.  Is there such a port, and
if so, where can I find it (binaries would be nice, but I can build the
source if necessary)?

Thanks...

-- 
Fashions have done more harm than revolutions.
		-- Victor Hugo




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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] gcc 2.95
Date: Sun, 24 Feb 2002 19:56:34 -0800
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To: Jeremy Drake <jeremyd@apptechsys.com>
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In reference to a message from Jeremy Drake, dated Feb 24:
> I have just installed the debian hppa port, and I am happy to have
> an alternative to HP-UX.  I am having a lot of problems with gcc 3.0,
> though and I would like to try gcc 2.95 or so.  Is there such a port, and
> if so, where can I find it (binaries would be nice, but I can build the
> source if necessary)?

No, there is no gcc-2.95 port for hppa-linux...

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
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From: Ralf Hildebrandt <Ralf.Hildebrandt@charite.de>
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Subject: [parisc-linux] ext3 patch
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The recent ext3 patch on
http://www.zip.com.au/~akpm/linux/ext3/

( http://www.zip.com.au/~akpm/ext3-2.4-0.9.17-2418p3.gz )
applies cleanly to 2.4.17-pa30 -- I recommend committing it to the
kernel CVS tree, since

a) It will be in 2.4.18 anyway
b) it fixes some problems:

0.9.17  12 Jan 2002  (Included in 2.4.18-pre5)
-------------------

- Cleanup from Manfred Spraul which provides better randomisation of
  inode generation numbers.

- A locking fix which prevents possible panics when an application is
  using ioctl(FIBMAP) against a loaded filesystem.

- Buffer locking fix for journal descriptor buffers - fixes the
  "end_request: buffer-list destroyed" crash which can occur under
  heavy VM load.

- Buffer locking fix which could cause corruption if a process is
  reading rom the underlying block device while journal recovery is in
  progress.
  

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
If Bill Gates had a dime for every time a Windows box crashed...
                ...Oh, wait a minute, he already does.




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http://mkhppa1.esiee.fr/
has been down for at least the weekend and still is.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
"Kids today have so many advantages I never had. There's no telling what
I could've accomplished with a home computer and a handgun."  
 - LeMel Hebert-Williams. 




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Subject: [parisc-linux] 735-memory
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Last weekend I scrapped a 735,  apperently it did not survive transport.
The memory inside, is it usable for other HP-systems, like 712/100 or C110?

Hans



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From: "Neulinger, Nathan" <nneul@umr.edu>
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No... as far as I remember, the non 735/755 style boxes used more
conventional looking simms/dimms. The 735/755 have those large
ide-connector-like boards.=20

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216


> -----Original Message-----
> From: Witvliet, Hans [mailto:Hans.Witvliet@Alcatel.nl]=20
> Sent: Monday, February 25, 2002 9:03 AM
> To: parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] 735-memory
>=20
>=20
> Last weekend I scrapped a 735,  apperently it did not survive=20
> transport.
> The memory inside, is it usable for other HP-systems, like=20
> 712/100 or C110?
>=20
> Hans
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>=20



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From: "FAUCHER,DENNIS (HP-USA,ex1)" <dennis_faucher@hp.com>
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Subject: [parisc-linux] tsocks Error
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Hello,

Has anyone used tsocks successfully?  I just installed the latest with
apt-get (tsocks version 1.7-4) and receive the following error on use:

relocation error: /usr/lib/libtsocks.so: undefined symbol: $$dyncall

Thanks in advance.

Sincerely,
Dennis Faucher
Technical Consultant
Hewlett-Packard Company
https://www.ecardfile.com/id/dennis_faucher (Contact)



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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ext3 patch
Date: Mon, 25 Feb 2002 17:49:59 +0000
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On Mon, Feb 25, 2002 at 09:02:05AM +0100, Ralf Hildebrandt wrote:
> The recent ext3 patch on
> http://www.zip.com.au/~akpm/linux/ext3/
> 
> ( http://www.zip.com.au/~akpm/ext3-2.4-0.9.17-2418p3.gz )
> applies cleanly to 2.4.17-pa30 -- I recommend committing it to the
> kernel CVS tree, since
> 
> a) It will be in 2.4.18 anyway
> b) it fixes some problems:

I'd rather not apply patches which will be in 2.4.18 anyway -- it makes
the merge harder.

-- 
Revolutions do not require corporate support.



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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] tsocks Error
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> Has anyone used tsocks successfully?  I just installed the latest with
> apt-get (tsocks version 1.7-4) and receive the following error on use:
> 
> relocation error: /usr/lib/libtsocks.so: undefined symbol: $$dyncall

$$dyncall is in libgcc.a.  The link command for the library should
include -lgcc at the end of the library list.

As a side note, there was extensive discussion about the inclusion of the
PA millicode routines in libgcc after problems arose on one port linking
both shared and static versions of libgcc when creating shared libraries.
The fallout from changing how libgcc is linked is still being worked out.

A decision was reached that only the shared libgcc should be used when
creating shared libraries (it's actually more complicated than that
because the new binutils allows undefined symbols) and the PA milli
routines should be moved to another location because they must be
linked statically.  The options include putting them into a separate
libmilli.a (the linker has support for automatically linking in
the library) or in the static part of libc.

If somebody wants to put these functions in libc, let me know.  Otherwise
I will create a libmilli.a in gcc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



From - Thu Nov 08 21:21:52 2018
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Subject: Re: [parisc-linux] tsocks Error
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On Mon, Feb 25, 2002 at 08:51:57AM -0800, FAUCHER,DENNIS (HP-USA,ex1) wrote:
> Hello,
> 
> Has anyone used tsocks successfully?  I just installed the latest with
> apt-get (tsocks version 1.7-4) and receive the following error on use:
> 
> relocation error: /usr/lib/libtsocks.so: undefined symbol: $$dyncall

This tends to indicate the package was built wrongly -- eg linked with ld
instead of with gcc.  everyone around here uses dante rather than tsocks.
Unfortunately, this package was built before anyone was using the build
log system, so I can't tell what it did.

-- 
Revolutions do not require corporate support.



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: [parisc-linux] Re: ext3 patch
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Ralf Hildebrandt wrote:
> a) It will be in 2.4.18 anyway

If it will be in 2.4.18, I expect merging everything from 2.4.18
in one shot would be easier. If you give me a clean diff,
I'd be happy to post that on ftp.p-l.org/patches

thanks,
grant



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From: "James S" <smith-james@home.com>
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Subject: [parisc-linux] Parallel port woes
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i'm still having complete lockup of the machine when i send a printjob to
the local parallel port

it seems to be completely independant of the printing system i use - both
lpd & cups cause the same lockup

nothing actually seems to get as far as the printer, but cups seems to be
working ok, as i can print to the same printer shared up from a windows
machine

using kernel 2.4.17-32  on a 712/60 with an hp deskjet 500 on a standard
parallel cable

am i missing anything obvious ?

does the 712/60 have a standard printer port or do i need a special cable ?

Thanks

James S






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From: =?iso-8859-1?Q?Dutot_St=E9phane?= <stephane.dutot@exlicite.net>
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Subject: [parisc-linux] Problem to compile kernel form CVS.
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Hi,

I try to compil the last kernel version from CVS.

When i launch a "make dep". I have this error message.

make[2]: Leaving directory `/usr/src/linux/arch/parisc/math-emu'
make -C arch/parisc/kdb fastdep
make: *** arch/parisc/kdb: No such file or directory.  Stop.
make: Entering an unknown directorymake: Leaving an unknown
directorymake[1]: *** [_sfdep_arch/parisc/kdb] Error 2
make[1]: Leaving directory `/usr/src/linux'
make: *** [dep-files] Error 2

Have you some idea to solve this problem ?

Thanks Stphane Dutot

------------------------------------------------
Copy of .config

#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# Processor type
#
# CONFIG_PA7100 is not set
# CONFIG_PA7200 is not set
CONFIG_PA7100LC=y
# CONFIG_PA8X00 is not set
CONFIG_PA11=y

#
# General options
#
# CONFIG_SMP is not set
CONFIG_CHASSIS_LCD_LED=y
CONFIG_KWDB=y
CONFIG_IOMMU_CCIO=y
# CONFIG_GSC is not set
# CONFIG_GSC_LASI is not set
# CONFIG_GSC_WAX is not set
# CONFIG_EISA is not set
# CONFIG_ISA is not set
# CONFIG_PCI is not set

#
# General setup
#
# CONFIG_HOTPLUG is not set
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=6144
CONFIG_BLK_DEV_INITRD=y

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
# CONFIG_NETLINK_DEV is not set
# CONFIG_NETFILTER is not set
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_ARPD is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=y
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_NCR53C406A is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
CONFIG_53C700_USE_CONSISTENT=y
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
CONFIG_DUMMY=y
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_LASI_82596 is not set
# CONFIG_SUNLANCE is not set
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNLANCE is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_NET_ISA is not set
# CONFIG_NET_PCI is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=y
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=y
CONFIG_PPP_SYNC_TTY=y
# CONFIG_PPP_DEFLATE is not set
# CONFIG_PPP_BSDCOMP is not set
CONFIG_PPPOE=y
CONFIG_SLIP=y
# CONFIG_SLIP_COMPRESSED is not set
# CONFIG_SLIP_SMART is not set
# CONFIG_SLIP_MODE_SLIP6 is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Input core support
#
# CONFIG_INPUT is not set
# CONFIG_INPUT_KEYBDEV is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_PC110_PAD is not set

#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
# CONFIG_QUOTA is not set
CONFIG_AUTOFS_FS=y
CONFIG_AUTOFS4_FS=y
# CONFIG_REISERFS_FS is not set
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_JBD_DEBUG is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
CONFIG_RAMFS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
CONFIG_UDF_FS=y
# CONFIG_UDF_RW is not set
CONFIG_UFS_FS=y
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_INTERMEZZO_FS is not set
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_ROOT_NFS is not set
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
# CONFIG_ZISOFS_FS is not set
# CONFIG_ZLIB_FS_INFLATE is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
CONFIG_NLS=y

#
# Native Language Support
#
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set

#
# Console drivers
#

#
# Frame-buffer support
#
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FB_CYBER2000 is not set
CONFIG_FB_STI=y
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FBCON_ADVANCED is not set
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB32=y
CONFIG_FBCON_STI=y
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set
# CONFIG_FBCON_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y

#
# Sound
#
CONFIG_SOUND=y
# CONFIG_SOUND_BT878 is not set
# CONFIG_SOUND_CMPCI is not set
# CONFIG_SOUND_EMU10K1 is not set
# CONFIG_MIDI_EMU10K1 is not set
# CONFIG_SOUND_FUSION is not set
# CONFIG_SOUND_CS4281 is not set
# CONFIG_SOUND_ES1370 is not set
# CONFIG_SOUND_ES1371 is not set
# CONFIG_SOUND_ESSSOLO1 is not set
# CONFIG_SOUND_MAESTRO is not set
# CONFIG_SOUND_MAESTRO3 is not set
# CONFIG_SOUND_ICH is not set
# CONFIG_SOUND_RME96XX is not set
# CONFIG_SOUND_SONICVIBES is not set
# CONFIG_SOUND_TRIDENT is not set
# CONFIG_SOUND_MSNDCLAS is not set
# CONFIG_SOUND_MSNDPIN is not set
# CONFIG_SOUND_VIA82CXXX is not set
# CONFIG_MIDI_VIA82CXXX is not set
# CONFIG_SOUND_OSS is not set
# CONFIG_SOUND_TVMIXER is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y




From - Thu Nov 08 21:21:52 2018
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X-Mozilla-Keys:                                                                                 
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From: Jochen Friedrich <jochen@scram.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] EISA EEPROM patch
Date: Mon, 25 Feb 2002 20:05:32 +0100 (CET)
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Xref: news.gmane.org gmane.linux.ports.parisc:14171

Hi there,

looks like there is a typo in eisa_eeprom.c. Probably HPEE_BASE_LENG 
should be HPEE_MAX_LENGTH instead?

ebru:/usr/src/linux/drivers/gsc# cvs diff -u eisa_eeprom.c
Index: eisa_eeprom.c
===================================================================
RCS file: /var/cvs/linux/drivers/gsc/eisa_eeprom.c,v
retrieving revision 1.1
diff -u -r1.1 eisa_eeprom.c
--- eisa_eeprom.c       2002/02/24 16:29:43     1.1
+++ eisa_eeprom.c       2002/02/25 19:01:26
@@ -22,10 +22,10 @@
                offset += file->f_pos;
                break;
          case 2:
-               offset += HPEE_BASE_LENG;
+               offset += HPEE_MAX_LENGTH;
                break;
        }
-       return (offset >= 0 && offset < HPEE_BASE_LENG) ? (file->f_pos = offset) : -EINVAL;
+       return (offset >= 0 && offset < HPEE_MAX_LENGTH) ? (file->f_pos = offset) : -EINVAL;
 }

 static ssize_t eisa_eeprom_read(struct file * file,
@@ -35,10 +35,10 @@
        ssize_t ret;
        int i;

-       if (*ppos >= HPEE_BASE_LENG)
+       if (*ppos >= HPEE_MAX_LENGTH)
                return 0;

-       count = *ppos + count < HPEE_BASE_LENG ? count : HPEE_BASE_LENG - *ppos;
+       count = *ppos + count < HPEE_MAX_LENGTH ? count : HPEE_MAX_LENGTH - *ppos;
        tmp = kmalloc(count, GFP_KERNEL);
        if (tmp) {
                for (i = 0; i < count; i++)

Cheers,
--jochen




From - Thu Nov 08 21:21:52 2018
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From: Grant Grundler <grundler@dsl2.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problem to compile kernel form CVS.
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=?iso-8859-1?Q?Dutot_St=E9phane?= wrote:
> make -C arch/parisc/kdb fastdep
...
> Have you some idea to solve this problem ?

Yes. Disable CONFIG_KWDB.

That was something I had worked on with the hope I would get permission
to publish the full source. Was never given that permission.
Piet Delaney (sp?) is working on a kernel debugger.

grant



From - Thu Nov 08 21:21:52 2018
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From: Grant Grundler <grundler@dsl2.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] EISA EEPROM patch
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Xref: news.gmane.org gmane.linux.ports.parisc:14173

Jochen Friedrich wrote:
> looks like there is a typo in eisa_eeprom.c. Probably HPEE_BASE_LENG 
> should be HPEE_MAX_LENGTH instead?

Yes.
I think Thomas will fix this shortly.

grant



From - Thu Nov 08 21:21:53 2018
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] EISA EEPROM patch
Date: Mon, 25 Feb 2002 20:42:15 +0100
Lines: 17
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On Mon, Feb 25, 2002 at 12:11:51PM -0700, Grant Grundler wrote:
> Jochen Friedrich wrote:
> > looks like there is a typo in eisa_eeprom.c. Probably HPEE_BASE_LENG 
> > should be HPEE_MAX_LENGTH instead?
> 
> Yes.
> I think Thomas will fix this shortly.

yep, I missed that one :-( Fix is commited.

Thomas

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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-------------------
> http://mkhppa1.esiee.fr/
> has been down for at least the weekend and still is.
> 

Well, mkhppa1 is up again.

We had a powerfail, and the admin was in vacation ;o)

We are very sorry for the trouble.


Thibaut VARENE
PA/Linux ESIEE Team
http://www.esiee.fr/puffin



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Those on the CVS list will already have seen that Paul Bame & I
merged 2.4.18 into our CVS head.  There's one unmerged driver --
drivers/net/pcnet32.c, but the rest has compiled & booted on c3k.

Have fun.

-- 
Revolutions do not require corporate support.



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As you may remember from my last question, I'm having some problems
building some code on parisc-linux.  I have been able to reproduce the
problem using a more simple program.

Here's the problem.  This program segfaults when compiled with -fPIC, as
required to build a .so.  It is fine when compiled without -fPIC.  It is
also fine on intel platform with both.  Is there something wrong with the
code that I'm not seeing, or is this a compiler bug?  I have tried this
with gcc-3 on an intel box, and it is fine, so I assume it is this port?

Thanks for your help...

g++ -g -o test -fPIC test.cpp

---- test.cpp ----
#include <stdio.h>

class Foo
{
public:
	Foo(const char * const blah);
	unsigned char* text;
};
Foo::Foo(const char * const blah)
{
	text=(unsigned char *)blah;
}

const Foo test("Blah");
int main()
{
	printf("%s\n", test.text);
	return 0;
}



-- 
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> Here's the problem.  This program segfaults when compiled with -fPIC, as
> required to build a .so.  It is fine when compiled without -fPIC.  It is
> also fine on intel platform with both.  Is there something wrong with the
> code that I'm not seeing, or is this a compiler bug?  I have tried this
> with gcc-3 on an intel box, and it is fine, so I assume it is this port?

It's probably a compiler bug.  The code works ok with my 3.1 test version.
I think the problem may be the restoration of the pic offset table register
after function calls.

Suggest trying the debian 3.1 prerelease build.  Search the list to find
how to get it.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> It's probably a compiler bug.  The code works ok with my 3.1 test version.
> I think the problem may be the restoration of the pic offset table register
> after function calls.
> 
> Suggest trying the debian 3.1 prerelease build.  Search the list to find
> how to get it.

something is broken in the debian 3.1 snapshot package,
unfortunately....

legolas[20:35] ~% /usr/lib/gcc-snapshot/bin/g++ -o foo foo.cc 
/usr/bin/ld: unrecognized option '--eh-frame-hdr'
/usr/bin/ld: use the --help option for usage information
collect2: ld returned 1 exit status

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Hello,

Is there a problem with nslookup?  Mine returns a segmentation fault.  Thank
you.

Sincerely,
Dennis Faucher
Technical Consultant
Hewlett-Packard Company
https://www.ecardfile.com/id/dennis_faucher (Contact)



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Subject: Re: [parisc-linux] nslookup segmentation fault
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> Is there a problem with nslookup?  Mine returns a segmentation fault.  Thank
> you.

paer[8:38] ~% uname -a               
Linux paer 2.4.16-64-smp #1 SMP Sat Dec 29 02:33:39 MST 2001 parisc64 unknown

paer[8:38] ~% nslookup -silent www.debian.org
Server:         127.0.0.1
Address:        127.0.0.1#53

Non-authoritative answer:
Name:   www.debian.org
Address: 198.186.203.20

what version of kernel/glibc? did you change anything in
/etc/nsswitch.conf?

the last dozen lines or so of a strace might be useful.

randolph
-- 
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> > Suggest trying the debian 3.1 prerelease build.  Search the list to find
> > how to get it.
> 
> something is broken in the debian 3.1 snapshot package,
> unfortunately....

No, the problem is 3.1 was built with a recent version of binutils
which supports --eh-frame-hdr.  This change also involved changing
the way libgcc and the shared version of libgcc were linked with
shared libraries.  Do you recall your report of a build failure of
3.1 linking libstdc++?  My trying to fix this problem lead to a
heated discussion on gcc-patches.  My fix was reverted, then further
problems arose, and a new patch affecting the linkage of libgcc
was installed yesterday.

> legolas[20:35] ~% /usr/lib/gcc-snapshot/bin/g++ -o foo foo.cc 
> /usr/bin/ld: unrecognized option '--eh-frame-hdr'
> /usr/bin/ld: use the --help option for usage information
> collect2: ld returned 1 exit status

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Neat....

Here's part of Dennis' strace of nslookup:
> m4450dmf:/etc# strace nslookup athp.hp.com
[...]
> rt_sigprocmask(SIG_BLOCK, [HUP INT TERM], NULL, 8) = 0
> getpid()                                = 22574
> socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 3
> close(3)                                = 0
> socket(PF_INET6, SOCK_STREAM, 0)        = -1 EAFNOSUPPORT (Address family
> not su
> pported by protocol)
> brk(0)                                  = 0x2f000
> brk(0x2f030)                            = 0x2f030
> brk(0x30000)                            = 0x30000
> brk(0x33000)                            = 0x33000
> --- SIGSEGV (Segmentation fault) ---
> +++ killed by SIGSEGV +++

why is it trying to do ipv6?

randolph
-- 
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> Neat....
> 
> Here's part of Dennis' strace of nslookup:
> > m4450dmf:/etc# strace nslookup athp.hp.com
> [...]
> > rt_sigprocmask(SIG_BLOCK, [HUP INT TERM], NULL, 8) = 0
> > getpid()                                = 22574
> > socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 3
> > close(3)                                = 0
> > socket(PF_INET6, SOCK_STREAM, 0)        = -1 EAFNOSUPPORT (Address family
> > not su
> > pported by protocol)
> > brk(0)                                  = 0x2f000
> > brk(0x2f030)                            = 0x2f030
> > brk(0x30000)                            = 0x30000
> > brk(0x33000)                            = 0x33000
> > --- SIGSEGV (Segmentation fault) ---
> > +++ killed by SIGSEGV +++
> 
> why is it trying to do ipv6?
> 
> randolph
> -- 


I'm feel worried about what brk() is trying to do.

PF_INET==2 and PF_INET6==10 are only a single bit appart :}
Cosmic radiation maybe?

I'm not sure what is going on. Though I tried to build
Bind 8.3.1 on x86 and if failed (need to look into bits/types).

eventlib.c: In function `__evGetNext':
eventlib.c:298: structure has no member named `fds_bits'
eventlib.c:299: structure has no member named `fds_bits'
eventlib.c:300: structure has no member named `fds_bits'

c.




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Hi Carlos,

> I'm feel worried about what brk() is trying to do.

brk() is used to increase the core size. Nothing unusual.

> PF_INET==2 and PF_INET6==10 are only a single bit appart :}
> Cosmic radiation maybe?

Nope. The resolver supports both IPv4 and IPv6. The following just seems 
to be a probe if both AFs are available.

getpid()                                = 2880
socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 3
close(3)                                = 0
socket(PF_INET6, SOCK_STREAM, 0)        = 3
getsockname(3, {sin_family=AF_INET6, sin6_port=htons(0),  
inet_pton(AF_INET6, "::", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, [28]) = 0
close(3)                                = 0
brk(0)                                  = 0x2f000
brk(0x2f030)                            = 0x2f030
brk(0x30000)                            = 0x30000
brk(0x33000)                            = 0x33000
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++

gdb is even worse:

(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) y

Starting program: /usr/bin/nslookup www.kame.net
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
Program received signal SIGSEGV, Segmentation fault.
Cannot access memory at address 0x0
(gdb) bt
Cannot access memory at address 0x0

Looks like yet another glibc related problem. In particular since nslookup 
seems to use pthread (which *does* have issues with the latest glibc):

open("/lib/libpthread.so.0", O_RDONLY)  = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0@`"..., 1024) 
= 1024

Cheers,
--jochen




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Subject: [parisc-linux] Sound
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Hi,

does anyone get the Sound on a 712/60 work?
Is it possible to play MP3's using XMMS on this system or is it to hard for
it?
Or doesn't Debian support this soundcard at this time ?

cya,
Tilo





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From: andi <andi@fischlustig.de>
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Subject: Re: [parisc-linux] Sound
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On Tue, 2002-02-26 at 23:40, Tilo Jandt wrote:
> Hi,
> 
> does anyone get the Sound on a 712/60 work?
> Is it possible to play MP3's using XMMS on this system or is it to hard for
> it?
> Or doesn't Debian support this soundcard at this time ?

playing mp3s on my 712/60 works fine with xmms and mpg123, the cpu is
powerful enough to handle mp3 decoding.

andi





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"Tilo Jandt" writes...

> Hi,
> 
> does anyone get the Sound on a 712/60 work?

Yes.

> Is it possible to play MP3's using XMMS on this system or is it to hard for
> it?

Yes, no.

> Or doesn't Debian support this soundcard at this time ?

Yes. You need the harmony driver, which was recently added to defconfig and 
should be in recent pre-build kernels ftp site and kernel-image packages in 
the Debian archive.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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Cool.  Seems to work OK on the test, now to try it on the real thing...


On Mon, 25 Feb 2002, John David Anglin wrote:

> > Here's the problem.  This program segfaults when compiled with -fPIC, as
> > required to build a .so.  It is fine when compiled without -fPIC.  It is
> > also fine on intel platform with both.  Is there something wrong with the
> > code that I'm not seeing, or is this a compiler bug?  I have tried this
> > with gcc-3 on an intel box, and it is fine, so I assume it is this port?
>
> It's probably a compiler bug.  The code works ok with my 3.1 test version.
> I think the problem may be the restoration of the pic offset table register
> after function calls.
>
> Suggest trying the debian 3.1 prerelease build.  Search the list to find
> how to get it.
>
> Dave
>

-- 
QOTD:
	 "It's not the despair... I can stand the despair.  It's the hope."




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cc'd to the list...

"Tilo Jandt" writes...

> I've got Kernel 2.4.17-pa27.
> How do I install the harmony driver? I'm not so skilled with Debian HPPA and
> don't know what to do.

You need to enable CONFIG_SOUND_HARMONY in the kernel config when you build a 
kernel. If you're using a prebuilt kernel from the ftp site the tarball 
contains the config file it was built with. If you are using

ftp://ftp.parisc-linux.org/kernels/32/32-2.4.17-pa27.tar.gz

that kernel contains the harmony driver and it should just work. I've used 
xmms and mpg321 and they work great.

Good luck,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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> ftp://ftp.parisc-linux.org/kernels/32/32-2.4.17-pa27.tar.gz
> 
> that kernel contains the harmony driver and it should just work.
Yes I use this Kernel.

> I've used xmms and mpg321 and they work great.
But if I start XMMS and wanna play an MP3 I get an Error Message:
Please check that:
1. You have the correct output plugin selected (use eSoundOutput Plugin or OSS Driver both don't work)
2. No other programs is blocking the soundcard ( I don't know if others use the soundcard but I don't know)
3. Your soundcard is configured properly (I don't know can I get Information whether the soundcard is configured right or not?)

cya,
Tilo


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Tilo Jandt writes...

> Yes I use this Kernel.

Good.

> > I've used xmms and mpg321 and they work great.
> But if I start XMMS and wanna play an MP3 I get an Error Message:
> Please check that:
> 1. You have the correct output plugin selected (use eSoundOutput Plugin or OS
> S Driver both don't work)
> 2. No other programs is blocking the soundcard ( I don't know if others use t
> he soundcard but I don't know)
> 3. Your soundcard is configured properly (I don't know can I get Information 
> whether the soundcard is configured right or not?)

This is more of a general audio question at this point. You might want to test 
that the card is working by cat'ing a .au file to /dev/audio. Also, try the 
oss and esound plugins.

Good luck,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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> This is more of a general audio question at this point. You might want to test
> that the card is working by cat'ing a .au file to /dev/audio.

I did so an I can hear the sound by cat'ing it to /dev/audio or /dev/dsp

> Also, try the oss and esound plugins.

I tried both an changed the preferences to /dev/audio nstead of /dev/dsp but it doesn't work at all.


> Good luck,

Thanx :)


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Okay,

I found the problem. Because my "normal" user doesn't have permission to write to /dev/audio
now it works fine.
Thanks for all help.

cya,
Tilo


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Subject: [parisc-linux] PA-RISC 0.9.3 + C200 + Visualize-EG = HPMC
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Hello PA-RISC list,

I have successfully installed Debian 3.0/PA-RISC-Linux 0.9.3, on an
HP-9000
C200, but cannot get X working to save me. Following earlier posts to
this list
I made sure that only one screen resolution was specified in my
XF86Config-4
file (1280x1024-8, matching the stifb settings for the console) and
checked
it via "fbset -i". 

The graphics card on my C200 is a Visualize-EG (A4450A) which is, I
believe, a GSC vs. PCI card. In any case, trying to start X blanks the
screen, then a few seconds later I get a High Priority Machine Check
error as the workstation locks up. Any insights or workarounds most
appreciated!

Thanks,
John

P.S. I tried a newer kernel, 2.4.17, to no avail.



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On Wed, 27 Feb 2002 hplinux@eagle.grdl.noaa.gov wrote:

> Hello PA-RISC list,
>
> I have successfully installed Debian 3.0/PA-RISC-Linux 0.9.3, on an
> HP-9000
> C200, but cannot get X working to save me. Following earlier posts to
> this list
> I made sure that only one screen resolution was specified in my
> XF86Config-4
> file (1280x1024-8, matching the stifb settings for the console) and
> checked
> it via "fbset -i".

so far so good ...

> The graphics card on my C200 is a Visualize-EG (A4450A) which is, I
> believe, a GSC vs. PCI card. In any case, trying to start X blanks the
> screen, then a few seconds later I get a High Priority Machine Check
> error as the workstation locks up. Any insights or workarounds most
> appreciated!

that's the problem!
I have a C240 with the same graphics card. It is (still) unsupported.
You have to wait until s.o. develops a working driver (or implement
it by yourself)

sorry.

> Thanks,
> John
>
> P.S. I tried a newer kernel, 2.4.17, to no avail.

greetings max




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hplinux@eagle.grdl.noaa.gov wrote:
> The graphics card on my C200 is a Visualize-EG (A4450A) which is, I
> believe, a GSC vs. PCI card. In any case, trying to start X blanks the
> screen, then a few seconds later I get a High Priority Machine Check
> error as the workstation locks up. Any insights or workarounds most
> appreciated!

We are still trying to figure out what causes the HPMC
with PCI gfx cards. STI console works and that's it for now.

So far, I've figured out that xf1bppPolyGlyphBltBlack() is
the userspace routine that triggers the HPMC. Don't know
the code path how it got there or what happens before hand.

grant



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> > The graphics card on my C200 is a Visualize-EG (A4450A) which is, I
> > believe, a GSC vs. PCI card. In any case, trying to start X blanks the
> > screen, then a few seconds later I get a High Priority Machine Check
> > error as the workstation locks up. Any insights or workarounds most
> > appreciated!
>
> that's the problem!
> I have a C240 with the same graphics card. It is (still) unsupported.
> You have to wait until s.o. develops a working driver (or implement
> it by yourself)

I've been fighting the same HPMC on my C180; I used the same XF86Config-4
file that works perfectly on the 715/100 I just got rid of, same versions
of everythig, etc. Mine has the onboard video, but I didn't think to look
into what it actually is.

Is there a simple way to tell what kind of video is in these? I'm at work,
so I don't have the machine in front of me to play with, testing commands,
but does something simple like 'fbset -i' tell you what's in there? Or
perhaps the appropriate line in dmesg says 'Visualize EG' or something?




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From: Jack Perdue <j-perdue@tamu.edu>
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Subject: [parisc-linux] puffin group pr0n (OT - ignore)
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I was guessing at the [very old] redirect for the 
PuffinGroup->PA-RISC Linux URL and 
I tried puffingroup.com.  

Don't go there unless you want to look at naughty bits
(and even then you probably have to pay).

Them pr0n sites obviously think some PA-RISC Linux types might
be interested in their product or they have a non-northern sea
bird interpretation of the name.

jack
j-perdue@tamu.edu






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On Wed, Feb 27, 2002 at 04:36:49PM -0600, Jack Perdue wrote:
> I was guessing at the [very old] redirect for the 
> PuffinGroup->PA-RISC Linux URL and 
> I tried puffingroup.com.  
> 
> Don't go there unless you want to look at naughty bits
> (and even then you probably have to pay).

Indeed.  There's a sordid little story involved there which you can
probably drag out of me under the influence of sufficient alcohol.
The old site was at thepuffingroup.com, but payment on that domain ceased
a while ago.  Still, if you're sending mail here, I guess you can figure
out where the new website is :-)

-- 
Revolutions do not require corporate support.



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http://www.free-it.org/kontakte.php3?lang=en_US&faction=H



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i've downloaded a few source packages & have hit the same problem with most
of them

bear with me, i'm not that up to speed on compilers etc.....

i follow the instructions to the letter & when i do the 'make' part, i get
the following....



checking host system type... Invalid configuration
'parisc-unknown-linux-gnu': machine 'parisc-unknown' not recognized

checking build system type... Invalid configuration
'parisc-unknown-linux-gnu': machine 'parisc-unknown' not recognized


and then further on...


loading cache ./config.cache within ltconfig
ltconfig: you must specify a host type if you use --no-verify'
Try 'ltconfig --help' for more information.
configure: error: libtool configure failed


from what i can see, it seems that the compile is failing because it doesnt
know about the machine type - is there any way i can fix this by making the
system type 'linux'  or something similar ?



Thanks

James S









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> checking host system type... Invalid configuration
> 'parisc-unknown-linux-gnu': machine 'parisc-unknown' not recognized

Some source packages have old versions of the file config.guess which
can cause this type of problem.  When you configure, use "--host=hppa-linux".
More package recognize this.  If this doesn't work, you can replace
config.guess with a newer version (e.g., from gcc) and hope this works.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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In reference to a message from James S, dated Feb 28:
> i've downloaded a few source packages & have hit the same problem with most
> of them

this is a common problem, that the upstream sources have
config.{guess,sub} files that are outdated and do not recognize some of
the newer architectures. on a debian system, if you have, for example,
automake installed (apt-get install automake) you can copy newer
config.guess/sub files from /usr/share/automake/config.*

Alternatively, you can get the latest and greatest from
http://subversions.gnu.org/cgi-bin/viewcvs/config/config/

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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thanks - the source package did indeed have an old (2000) config.guess

i copied a newer one over it & its compiling away 


James S






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ok, seems that the root fs is damaged after some locks and following
resets. For the reinstallation, which kernel should be used on a A500? 
I Tried 2.4.17-64-smp, 2.4.16-64-smp, 2.4.17-64 and
2.4.16-64. However, the machine locks up after three, maybe four days.
 
init-2.05a# ls -l /lib/libext2fs.so.2.4  
ls: /lib/libext2fs.so.2.4: Input/output error 
 
attempt to access beyond end of device 
08:06: rw=0, want=6803996040, limit=1999856 
attempt to access beyond end of device 
08:06: rw=0, want=7745165772, limit=1999856 
attempt to access beyond end of device 
/p/pari/libpari1-dev_2.1.3-1_hppa.deb 
Size: 1540332 




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randolph@tausq.org (Randolph Chung) writes:

The Debian package that delivers up-to-date config.* files is autotools-dev.

Bdale



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Matthias Klose wrote:
> ok, seems that the root fs is damaged after some locks and following
> resets. For the reinstallation, which kernel should be used on a A500? 
> I Tried 2.4.17-64-smp, 2.4.16-64-smp, 2.4.17-64 and
> 2.4.16-64. However, the machine locks up after three, maybe four days.

You can try ftp://ftp.parisc-linux.org/kernels/a500/2.4.17-pa23.tgz

this seems to be fairly stable on my a500. And it has ext3
builtin so you can use it on your root filesystem.

I can say that 2.4.18-pa0 is *not* stable with CONFIG_SMP on A500.
It only runs a few hours before locking up.
We suspect issues with do_gettimeofday() (iirc).

grant



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Am 01.03.2002 um 01:24:58 +0100 schrieb Matthias Klose folgendes:

> ok, seems that the root fs is damaged after some locks and following
> resets. For the reinstallation, which kernel should be used on a A500? 
> I Tried 2.4.17-64-smp, 2.4.16-64-smp, 2.4.17-64 and
> 2.4.16-64. However, the machine locks up after three, maybe four days.
>  
> init-2.05a# ls -l /lib/libext2fs.so.2.4  
> ls: /lib/libext2fs.so.2.4: Input/output error 
>  
> attempt to access beyond end of device 
> 08:06: rw=0, want=6803996040, limit=1999856 
> attempt to access beyond end of device 
> 08:06: rw=0, want=7745165772, limit=1999856 
> attempt to access beyond end of device 
> /p/pari/libpari1-dev_2.1.3-1_hppa.deb 
> Size: 1540332 

This sounds like broken hardware! At least whenever this pops up on
the ext3 list, then it's mostly due to bad hardware, bizarre UDMA
settings or the hardware being used out of spec.

In this case, going to ext3 might not help, since ext3 is ext2, except
for the journal.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
S/He is down to the 7-11 down the street, to buy extra strong coffee and caffeine tabs. 




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On my c3k, everytime I boot up a kernel running 2.4.18-pa2 (narrow
kernel), I get a lot of garbage characters during bootup (sometime 
between hardware inventory and scsi init). Has anyone else seen this? 
I use minicom has my serial terminal and the garbage kills minicom....

randolph
-- 
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  (----)
 ( >__< )
 ^^ ~~ ^^



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Randolph Chung wrote:
> On my c3k, everytime I boot up a kernel running 2.4.18-pa2 (narrow
> kernel), I get a lot of garbage characters during bootup (sometime 
> between hardware inventory and scsi init). Has anyone else seen this? 
> I use minicom has my serial terminal and the garbage kills minicom....

I didn't see that with 2.4.18-pa2 on my c3k using my own .config's.
Maybe you want to compare them?

It's possible an evil driver is poking around in IO port space
and deranging the suckyio serial port.

grant



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Hi,
Just to let everybody know that i've (finally) sucsesfully completley LFS (www.linuxfromscratch.org) on my 712/80
I may be writing a hint for it, since it did get a bit messy ;)
But for anybody who doesn't like debian too much, i'd sugest attemping LFS.
Also while doing LFS, i used 2.4.18-pa2 (yesterdays CVS, to be exact) and (i think this has been reported already)
My power LED switches off when linux is loading/loaded and soft power off no longer works (it just switches off)
Any reason for this?

Anyway, if you have any problems doing LFS, contact me or post on the mailing list
It takes just 20 seconds to boot (from end of bios->login prompt) and the entire system is < 200MB

--jbit


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Hey, erm, I just tried to boot my other hp (712/60) and the fuse (inside the power supply) just blew..
I was wondering if anybody has a scematic for the power supply so i can (try to) fix it?

thanks for any help

--jbit


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On Sun, Mar 03, 2002 at 04:36:55PM +0000, Jbit wrote:
> Hey, erm, I just tried to boot my other hp (712/60) and the fuse (inside 
> the power supply) just blew..
> I was wondering if anybody has a scematic for the power supply so i can 
> (try to) fix it?

Just open it and find the fuse. It shouldn't be hidden too deep...

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
May's Law: The quality of correlation is inversely proportional to the
density of control. (The fewer data points, the smoother the curves.) 




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The problem is not finding the fuse, but "remove" the "reason",
why the fuse is blown up.

In some seldom cases, if we have luck, we simple need to exchange
the fuse, and I wish Jbit much luck ....

With friendly regards
Christoph P.



Ralf Hildebrandt wrote:
> 
> On Sun, Mar 03, 2002 at 04:36:55PM +0000, Jbit wrote:
> > Hey, erm, I just tried to boot my other hp (712/60) and the fuse (inside
> > the power supply) just blew..
> > I was wondering if anybody has a scematic for the power supply so i can
> > (try to) fix it?
> 
> Just open it and find the fuse. It shouldn't be hidden too deep...
> 
> --
> Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
> Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
> Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
> May's Law: The quality of correlation is inversely proportional to the
> density of control. (The fewer data points, the smoother the curves.)
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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> In some seldom cases, if we have luck, we simple need to exchange
> the fuse, and I wish Jbit much luck ....

Fuses often go with age so he may be lucky. You might also want to pull off
the disks and any add on cards then try with a new fuse, and work forwards
with a supply of them to hand.

ObElectronicsWarning: If you dig in the innards of a PSU please remember
that some capacitors can hold enough charge to kill you several weeks after
the system is unplugged. Also having reassembled it check that the earthing
is correct with a meter before you try it. 

Alan



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> In some seldom cases, if we have luck, we simple need to exchange
> the fuse, and I wish Jbit much luck ....


No such luck, the (new) fuse blew streight away ;(
The workstation in question has no HDD/FDD/cards to blow it.
It looks like one of the FETs has blown too, the question is, why?
Hopfully its a dodgey (old) power supply, NOT the mother board...
Will say when (and how) i fixed it, so anybody with similar problems can dig through the ml archives and fix it (fairly) easily

--jbit

`



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Soy Aregntino y no me se hablar ingles, me gustaria saber si se podria =
bajar el mismo programa de Seti pero para Linux.
Yo cuento con Red Hat 7.1 server funcionando en mi casa con una =
peque=F1a red y me gustaria ser parte pero trabajo con Linux la mayor =
parte de mi tiempo.
Lo instale en mi unica maquina Windows pero quisiera instalarlo en mi =
red Linux.
En formato RPM en lo posible.

Muchas Gracias Ariel Corgatelli

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</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Soy Aregntino y no me se hablar ingles, =
me gustaria=20
saber si se podria bajar el mismo programa de Seti pero para =
Linux.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Yo cuento con Red Hat 7.1 server =
funcionando en mi=20
casa con una peque=F1a red y me gustaria ser parte pero trabajo con =
Linux la mayor=20
parte de mi tiempo.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Lo instale en mi unica maquina Windows =
pero=20
quisiera instalarlo en mi red Linux.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>En formato RPM en lo =
posible.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Muchas Gracias Ariel=20
Corgatelli</FONT></DIV></BODY></HTML>

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>>I may be writing a hint for it, since it did get a bit messy ;)
> When the HOW-TO is done, post it to parisc-linux mailing list and I'll
> add it someplace to the parisc-linux.org website.


Thanks, I'll proberly write it sometime next week, since I have to sort out my server this week.
(and LFS-3.2 should be out next week)
but if anybody wants to try it sooner, I'd be happy to help them with any problems/querys (email me directly, I'll respond faster)

--jbit (james_a_n_lee@yahoo.com)



_________________________________________________________
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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: [parisc-linux] fb_ioctl.diff
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Hi all,

See ftp.parisc-linux.org:patches/fb_ioctl.diff

I looked at the missing ioctls for 64-bit/FB and took a first whack at them.
I now get some garbage on my FB (c3k, vis-eg) with a 64-bit kernel
and the system locks up - have to unplug it. I suspect the wrapper isn't
doing address conversion properly since two pointers get passed back
to user space for one of them.  I'll look at the return values tomorrow
to see if I can figure anything out.

later,
grant



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   From: Sten <sten@blinkenlights.nl>
   Date: Mon, 4 Feb 2002 11:58:10 +0100 (CET)
   
   The reason I ask this is because I have been trying to setup a
   tunnel, and I cant get it to work either with ifconfig or iproute.
   
   [root@towel ip]# ip tunnel add blink mode sit remote x.x.x.x dev
   eth0
   ioctl: Invalid argument

The reason this fails is because SIOCADDTUNNEL uses SIOCDEVPRIVATE
which can't be translated properly to/from 32-bit apps running
on 64-bit kernels.



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Subject: [parisc-linux] Printer Port & kernel stuff
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Has nobody else had the same problem as me with the printer port ?

My 712/60 locks every time i send anything to the local printer.


while i'm at it - does anybody have a list of the options i should choose
when i'm doing a make config for the kernel so i can get the right network
stuff installed etc.

i need to recompile to include smbfs (which i think would be very handy if
compiled into the kernel as standard)


Thanks

James S








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From: Ralf Hildebrandt <Ralf.Hildebrandt@charite.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Printer Port & kernel stuff
Date: Tue, 5 Mar 2002 21:05:41 +0100
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Cc: parisc-linux@lists.parisc-linux.org
To: James S <smithjames@comcast.net>
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On Tue, Mar 05, 2002 at 03:02:29PM -0500, James S wrote:

> while i'm at it - does anybody have a list of the options i should choose
> when i'm doing a make config for the kernel so i can get the right network
> stuff installed etc.

Attached is my .config 

> i need to recompile to include smbfs (which i think would be very handy if
> compiled into the kernel as standard)

You'd need to add that.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Gates' Law: Every 18 months, the speed of software halves.


--nFreZHaLTZJo0R7j
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=".config"

#
# Automatically generated make config: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y

#
# Processor type
#
# CONFIG_PA7100 is not set
# CONFIG_PA7200 is not set
CONFIG_PA7100LC=y
# CONFIG_PA8X00 is not set
CONFIG_PA11=y

#
# General options
#
# CONFIG_SMP is not set
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_KWDB is not set
# CONFIG_IOMMU_CCIO is not set
CONFIG_GSC=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
# CONFIG_EISA is not set
# CONFIG_ISA is not set
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_SUPERIO=y
CONFIG_PCI_NAMES=y

#
# General setup
#
CONFIG_HOTPLUG=y
CONFIG_NET=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=m
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Parallel port support
#
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_PC_CML1=m
# CONFIG_PARPORT_SERIAL is not set
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_PC_PCMCIA is not set
# CONFIG_PARPORT_AMIGA is not set
# CONFIG_PARPORT_MFC3 is not set
# CONFIG_PARPORT_ATARI is not set
CONFIG_PARPORT_GSC=m
# CONFIG_PARPORT_SUNBPP is not set
# CONFIG_PARPORT_OTHER is not set
# CONFIG_PARPORT_1284 is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_LOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
CONFIG_INET_ECN=y
CONFIG_SYN_COOKIES=y

#
#   IP: Netfilter Configuration
#
CONFIG_IP_NF_CONNTRACK=y
CONFIG_IP_NF_FTP=y
CONFIG_IP_NF_IRC=y
# CONFIG_IP_NF_QUEUE is not set
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_LIMIT=y
CONFIG_IP_NF_MATCH_MAC=y
CONFIG_IP_NF_MATCH_MARK=y
CONFIG_IP_NF_MATCH_MULTIPORT=y
CONFIG_IP_NF_MATCH_TOS=y
CONFIG_IP_NF_MATCH_AH_ESP=m
CONFIG_IP_NF_MATCH_LENGTH=y
CONFIG_IP_NF_MATCH_TTL=y
CONFIG_IP_NF_MATCH_TCPMSS=y
CONFIG_IP_NF_MATCH_STATE=y
CONFIG_IP_NF_MATCH_UNCLEAN=y
CONFIG_IP_NF_MATCH_OWNER=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
# CONFIG_IP_NF_TARGET_MIRROR is not set
CONFIG_IP_NF_NAT=y
CONFIG_IP_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_IP_NF_TARGET_REDIRECT=y
# CONFIG_IP_NF_NAT_SNMP_BASIC is not set
CONFIG_IP_NF_NAT_IRC=y
CONFIG_IP_NF_NAT_FTP=y
# CONFIG_IP_NF_MANGLE is not set
CONFIG_IP_NF_TARGET_LOG=y
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_TARGET_TCPMSS=y
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set

#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# ATA/IDE/MFM/RLL support
#
# CONFIG_IDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set

#
# SCSI support
#
CONFIG_SCSI=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=m
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=y

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
CONFIG_53C700_USE_CONSISTENT=y
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_NCR53C8XX is not set
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_PQS_PDS is not set
# CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set

#
# PCMCIA SCSI adapter support
#
# CONFIG_SCSI_PCMCIA is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=m
# CONFIG_SUNLANCE is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_NET_PCI is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPP_FILTER is not set
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPPOE=m
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# PCMCIA network device support
#
# CONFIG_NET_PCMCIA is not set

#
# Input core support
#
# CONFIG_INPUT is not set
# CONFIG_INPUT_KEYBDEV is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_HIL=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_PC110_PAD is not set

#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set

#
# Input core support is needed for gameports
#

#
# Input core support is needed for joysticks
#
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# PCMCIA character devices
#
# CONFIG_PCMCIA_SERIAL_CS is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
CONFIG_EXT3_FS=y
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_INTERMEZZO_FS is not set
# CONFIG_NFS_FS is not set
# CONFIG_NFS_V3 is not set
# CONFIG_ROOT_NFS is not set
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
# CONFIG_SUNRPC is not set
# CONFIG_LOCKD is not set
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
# CONFIG_ZISOFS_FS is not set
# CONFIG_ZLIB_FS_INFLATE is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
CONFIG_NLS=y

#
# Native Language Support
#
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set

#
# Console drivers
#

#
# Frame-buffer support
#
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FB_RIVA is not set
# CONFIG_FB_CLGEN is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
CONFIG_FB_STI=y
# CONFIG_FB_MATROX is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FBCON_ADVANCED is not set
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB32=y
CONFIG_FBCON_STI=y
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set
# CONFIG_FBCON_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y

#
# Sound
#
CONFIG_SOUND=m
# CONFIG_SOUND_BT878 is not set
# CONFIG_SOUND_CMPCI is not set
# CONFIG_SOUND_EMU10K1 is not set
# CONFIG_MIDI_EMU10K1 is not set
# CONFIG_SOUND_FUSION is not set
# CONFIG_SOUND_CS4281 is not set
# CONFIG_SOUND_ES1370 is not set
# CONFIG_SOUND_ES1371 is not set
# CONFIG_SOUND_ESSSOLO1 is not set
# CONFIG_SOUND_MAESTRO is not set
# CONFIG_SOUND_MAESTRO3 is not set
# CONFIG_SOUND_ICH is not set
CONFIG_SOUND_HARMONY=m
# CONFIG_SOUND_RME96XX is not set
# CONFIG_SOUND_SONICVIBES is not set
# CONFIG_SOUND_TRIDENT is not set
# CONFIG_SOUND_MSNDCLAS is not set
# CONFIG_SOUND_MSNDPIN is not set
# CONFIG_SOUND_VIA82CXXX is not set
# CONFIG_MIDI_VIA82CXXX is not set
# CONFIG_SOUND_OSS is not set
# CONFIG_SOUND_TVMIXER is not set

#
# USB support
#
# CONFIG_USB is not set

#
# USB Controllers
#
# CONFIG_USB_UHCI is not set
# CONFIG_USB_UHCI_ALT is not set
# CONFIG_USB_OHCI is not set

#
# USB Device Class drivers
#
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_BLUETOOTH is not set
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_HP8200e is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set

#
# USB Human Interface Devices (HID)
#

#
#   Input core support is needed for USB HID
#

#
# USB Imaging devices
#
# CONFIG_USB_DC2XX is not set
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_SCANNER is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_HPUSBSCSI is not set

#
# USB Multimedia devices
#

#
#   Video4Linux support is needed for USB Multimedia device support
#

#
# USB Network adaptors
#
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_CATC is not set
# CONFIG_USB_CDCETHER is not set
# CONFIG_USB_USBNET is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set

#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_EMPEG is not set
# CONFIG_USB_SERIAL_FTDI_SIO is not set
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IPAQ is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XA is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XB is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_PL2303 is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OMNINET is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_RIO500 is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

--nFreZHaLTZJo0R7j--



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Subject: Re: [parisc-linux] Printer Port & kernel stuff
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On Tue, Mar 05, 2002 at 03:02:29PM -0500, James S wrote:
> Has nobody else had the same problem as me with the printer port ?
> 
> My 712/60 locks every time i send anything to the local printer.

Isn't this cured with Thomas Bogendoerfer's recent changes to make
parport_gsc & parport_pc work when compiled into the same kernel?

> while i'm at it - does anybody have a list of the options i should choose
> when i'm doing a make config for the kernel so i can get the right network
> stuff installed etc.

defconfig is pretty all-encompassing.  there's also the debian-configs
in the CVS tree.

> i need to recompile to include smbfs (which i think would be very handy if
> compiled into the kernel as standard)

last i heard it still wouldn't compile.  but maybe it got fixed and i
don't remember.

-- 
Revolutions do not require corporate support.



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> On Tue, Mar 05, 2002 at 03:02:29PM -0500, James S wrote:
> > Has nobody else had the same problem as me with the printer port ?
> > 
> > My 712/60 locks every time i send anything to the local printer.
> 
> Isn't this cured with Thomas Bogendoerfer's recent changes to make
> parport_gsc & parport_pc work when compiled into the same kernel?
> 

how recent ? - i'm using the the 2.4.17-32 kernel

James S






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Subject: [parisc-linux] OT: value of a 712/100
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This is a MIME message. If you are reading this text, you may want to 
consider changing to a mail reader or gateway that understands how to 
properly handle MIME multipart messages.

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Sorry for the OT post,  I own a few 712/100 boxes and was wondering what
they would be worth? and if any one here would be interested in buying a
couple of them?

Thanks,
Chris.

=====================
Chris 'GrayMatter' Gray
Network Administrator
CGray@Santa-Clarita.com
=====================
Windows NT crashed.
I am the Blue Screen of Death.
No one hears your screams.
=====================
Yesterday it worked.
Today it is not working.
Windows is like that.
=====================
"If it ain't broke,
fix it till it is broke"
=====================

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"Chris Gray" writes...

> Sorry for the OT post,  I own a few 712/100 boxes and was wondering what
> they would be worth? and if any one here would be interested in buying a
> couple of them?

Check ebay, I seem to remember them going for ~$100 with ram and disk.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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Subject: [parisc-linux] SMP support
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Xref: news.gmane.org gmane.linux.ports.parisc:14229

I am running debian-hppa on a J5000, and I am using the 2.4.17-32-smp
kernel.  It detects both processors at boot, and shows them both in
/proc/cpuinfo, but /proc/stat shows this

cpu  599904 33379482 34656795 68636319
cpu0 0 0 64 68636186
cpu1 599904 33379482 34656731 133

I interpret this to mean that everything is happening on cpu1 and cpu0 is
just sitting idle.  Is this a bug, or am I doing something wrong?

Also, I am unable to build any kernels myself.  I get a bunch of depmod
errors, like these

depmod: Unhandled relocation of type 74 for printk_Rsmp_dd132261
depmod: Unhandled relocation of type 74 for usb_deregister_Rsmp_c6f994d5

This is using the make-kpkg kernel_image command.

-- 
Love the sea?  I dote upon it -- from the beach.




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> depmod: Unhandled relocation of type 74 for printk_Rsmp_dd132261
> depmod: Unhandled relocation of type 74 for usb_deregister_Rsmp_c6f994d5
> 
> This is using the make-kpkg kernel_image command.

yeah, this is a known problem. someone needs to look at updating
modutils..... any volunteers? :-)

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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A controversial issue, I realise.  However, Marcelo is itching to get some
bitkeeper testing, I'm cooperating by setting up a bitkeeper tree he can
pull from.  You can see what I'm up to at http://palinux.bkbits.net/
but there's no _development_ going on there.  Continue to use
cvs.parisc-linux.org as before.  If anyone wants to have `user' access
(permission to check in, basically) to this tree, just ask me.

Note that not all changes are being committed to this tree, only the
bits I'm pushing to Marcelo.

-- 
Revolutions do not require corporate support.



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> > Sorry for the OT post,  I own a few 712/100 boxes and was wondering what
> > they would be worth? and if any one here would be interested in buying a
> > couple of them?
> 
> Check ebay, I seem to remember them going for ~$100 with ram and disk.

Ebay prices for older parisc kit seem to have basically doubled since 
Linux on parisc began to work well. Annoying but I think a great project
testimony



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Jeremy Drake wrote:
> I am running debian-hppa on a J5000, and I am using the 2.4.17-32-smp
> kernel.  It detects both processors at boot, and shows them both in
> /proc/cpuinfo, but /proc/stat shows this
> 
> cpu  599904 33379482 34656795 68636319
> cpu0 0 0 64 68636186
> cpu1 599904 33379482 34656731 133
> 
> I interpret this to mean that everything is happening on cpu1 and cpu0 is
> just sitting idle.  Is this a bug, or am I doing something wrong?

sounds like a bug.
I've never looked at /proc/stat.


> Also, I am unable to build any kernels myself.  I get a bunch of depmod
> errors, like these
> 
> depmod: Unhandled relocation of type 74 for printk_Rsmp_dd132261
> depmod: Unhandled relocation of type 74 for usb_deregister_Rsmp_c6f994d5

I've seen this when CONFIG_PA20 is enabled but CONFIG_PARISC64 is not.
Don't know if that's your problem, but it's worth checking.

You don't need to enable CONFIG_PA20 in order to run a 32-bit kernel
on any system that will support 32-bit kernels (A500/L-class only
support 64-bit kernel).

grant



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> > > Sorry for the OT post,  I own a few 712/100 boxes and was wondering what
> > > they would be worth? and if any one here would be interested in buying a
> > > couple of them?
> > 
> > Check ebay, I seem to remember them going for ~$100 with ram and disk.
> 
> Ebay prices for older parisc kit seem to have basically doubled since 
> Linux on parisc began to work well. Annoying but I think a great project
> testimony
>

Woo! Woo! Go PARISC!

I love my cluster of 715/50's :)

/me goes back to testing glibc

c.



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> On Tue, Mar 05, 2002 at 03:02:29PM -0500, James S wrote:
> > Has nobody else had the same problem as me with the printer port ?
> > 
> > My 712/60 locks every time i send anything to the local printer.
> 
> Isn't this cured with Thomas Bogendoerfer's recent changes to make
> parport_gsc & parport_pc work when compiled into the same kernel?
> 
> > while i'm at it - does anybody have a list of the options i should choose
> > when i'm doing a make config for the kernel so i can get the right network
> > stuff installed etc.
> 
> defconfig is pretty all-encompassing.  there's also the debian-configs
> in the CVS tree.
> 
> > i need to recompile to include smbfs (which i think would be very handy if
> > compiled into the kernel as standard)
> 
> last i heard it still wouldn't compile.  but maybe it got fixed and i
> don't remember.
>

I compiled it into the kernel, and as a module. No compilation issues.

Haven't tested it :)

c. 



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Getting closer.

I'm comfortable that FB ioctl wrappers are ok with an updated
version of the ioctl32.c patch (ftp.p-l.o:patches/fb_ioctl.diff).
"fbset -v -i" on c3k (64-bit kernel, PDC 4.6, Vis-EG/PCI) reports:

Linux Frame Buffer Device Configuration Version 2.1 (23/06/1999)
(C) Copyright 1995-1999 by Geert Uytterhoeven

Opening frame buffer device `/dev/fb0'
Using current video mode from `/dev/fb0'

mode "1280x1024"
    geometry 1280 1024 1280 1024 8
    timings 0 0 0 0 0 0 0
    rgba 8/0,8/0,8/0,0/0
endmode

Getting further frame buffer information
Frame buffer device information:
    Name        : 
    Address     : 0xfb000000
    Size        : 33554432
    Type        : PACKED PIXELS
    Visual      : PSEUDOCOLOR
    XPanStep    : 0
    YPanStep    : 0
    YWrapStep   : 0
    LineLength  : 2048
    MMIO Address: 0xfa100000
    MMIO Size   : 4194304
    Accelerator : No


But when I try to "fbi foo.jpg", I get diagonal black "lines" from
top left to bottom right striped about 3-4 pixels wide and spaced about
12-16 pixels apart (all just guesses). Tux does show up in the top
left corner at boot and stays there. System seems to lock up.
TOC doesn't work. Power off occurs 20-30 seconds after hitting power
button.

I suspect some parameter isn't right for FB device definition
but don't know what. Hoping the diagonal lines are the clue
that someone could tell me about - some sort of "off-by-one"
type of error.

thanks,
grant



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i've got 5 712/60's now - got the 1st one for $25 with 1Gb/96Mb

the shop i got it from had 120 of them - the guy didnt know what they were &
i knew was that they 'might run linux' :)

once i had mastered the remote boot part & installed my 1st machine, i
offered to show the guy how to 'linux em up'

i got the other 4 machines for my time :)

interesting part was - when i was showing the guy how to set it up, somebody
came in the shop & asked what he was wanting for one ..... the price had
went up to $50

so it looks like the price doubling theory is holding true...

this is the best non x86 linux port i've installed - its the first one that
actually feels like it belongs on the machine rather than having shoe horned
it into a machine that doesnt seem to want it, if you see what i mean :)




James s







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On Wed, Mar 06, 2002 at 10:08:33AM -0500, James S wrote:

> interesting part was - when i was showing the guy how to set it up, somebody
> came in the shop & asked what he was wanting for one ..... the price had
> went up to $50

No imagine how much the guy could take if he'd bundle the CD with the
boxes!

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Ah, young webmaster... java leads to shockwave. Shockwave leads to
realaudio. And realaudio leads to suffering. 




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On Tuesday 05 March 2002 07:05 pm, Grant Grundler wrote:
> Jeremy Drake wrote:
> > I am running debian-hppa on a J5000, and I am using the 2.4.17-32-smp
> > kernel.  It detects both processors at boot, and shows them both in
> > /proc/cpuinfo, but /proc/stat shows this
> >
> > cpu  599904 33379482 34656795 68636319
> > cpu0 0 0 64 68636186
> > cpu1 599904 33379482 34656731 133
> >
Folks, 
for comparison: (2.4.17 on an x86 smp-box)

cpu  2867 96 1822 231717
cpu0 1400 37 671 116143
cpu1 1467 59 1151 115574

Mike



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>From my dmesg output of the recent 2.4.18-pa3:

...
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
NOT FREEING INITMEM (351k)
Adding Swap: 124800k swap-space (priority -1)
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,3), internal journal
...

What does that mean? Why is the memory not freed on PA-RISC, but freed
on x86?

On my x86 box:

...
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 224k freed
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on ide0(3,2), internal journal
Real Time Clock Driver v1.10e
...
-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
C is quirky, flawed, and an enormous success. -- Dennis M. Ritchie.




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Subject: Re: [parisc-linux] not freeing initmem?
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There is still one or more __init 's too much somewhere. 
If we would free the memory without fixing/finding this place first, 
the kernel will crash.

Helge

On Wednesday 06 March 2002 16:19, Ralf Hildebrandt wrote:
> From my dmesg output of the recent 2.4.18-pa3:
>
> ...
> EXT3-fs: mounted filesystem with ordered data mode.
> VFS: Mounted root (ext3 filesystem) readonly.
> NOT FREEING INITMEM (351k)
> Adding Swap: 124800k swap-space (priority -1)
> EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,3), internal journal
> ...
>
> What does that mean? Why is the memory not freed on PA-RISC, but freed
> on x86?
>
> On my x86 box:
>
> ...
> EXT3-fs: mounted filesystem with ordered data mode.
> VFS: Mounted root (ext3 filesystem) readonly.
> Freeing unused kernel memory: 224k freed
> EXT3 FS 2.4-0.9.17, 10 Jan 2002 on ide0(3,2), internal journal
> Real Time Clock Driver v1.10e
> ...

-- 
Helge Deller
SAP AG - LinuxLab and Unix Platforms
email: helge.deller@sap.com
Phone: +49 6227 7 - 67783



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Am 06.03.2002 um 16:19:13 +0100 schrieb Ralf Hildebrandt folgendes:

> What does that mean? Why is the memory not freed on PA-RISC, but freed
> on x86?

OK, I grepped for that string and found the infamous FIXME:

/* FIXME: */
        printk(KERN_INFO "NOT FREEING INITMEM (%dk)\n",
                        (&__init_end - &__init_begin) >> 10);
        return;			

OTOH, why does the code below that not work for PA-RISC?
>From my naive understanding wouldn't the code in
./arch/sparc/mm/init.c be a good start?

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
"All programmers are playwrights and all computers are lousy actors."  -Anon.




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> There is still one or more __init 's too much somewhere. 
> If we would free the memory without fixing/finding this place first, 
> the kernel will crash.

Disable interrupts, memset all the freed pages to an invalid instruction in
parisc asm at the point you free the init pages, then re-enable ints and
the traceback should give you a direct stack trace to the offender



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"M. Grabert" wrote:
> very nice!
> Is the Visual-EG of the same type as the Visual-EG in my C240?

Same generation, but I'm using "Vis-EG/PCI" vs plain "Vis-EG".
I expect them to be the same (prgramming model) but don't know
if they actually are.

> Can you use the driver for Visual-FX aswell (AFAIK these are similar) ?

They are not similar. Vis-EG is 1280x1024 8 bit.
Vis-FX are all 24-bit color. FX2/4/6 have 3d acceleration
and texture mapping functionality (AFAIK, Vis-FXe does not)
I think Vis-FX can handle higher resolutions as well.

> Packed pixel:
> 
> If you see stripes it is very likely that you mix up PACKED pixels and
> NONPACKED pixels. But I think that's what you already checked.

I haven't. "PACKED PIXEL" is what the kernel currently hands back.
I believe this works for Vis-EG/GSC on PA1.1 machines.

> Mini-tiles/Packed pixel:
...
> Interleaved:
...
I don't think Vis-EG/PCI uses either of the above.

> BTW, Is the color of the displayed picture alright ?

I can't tell since the visible portions are only black.
Maybe that's a hint they are not.

> Is the picture streched/compressed or cropped ?
> You didn't say whether the Tux picture also had black stripes.

Both STICON text and Tux are striped diagonally top-left
to bottom right.

> Try to use some test-pictures (e.g. all red, all green. all blue,
> check-boxed, special patterns ...)!

That's a good idea. I setup some GIF for that.

> Actually I don't think I'm telling you any new stuff.
> So let's stop here and I wish you good luck!

For me, much of it is new. I don't know anything about FB layout.

thanks,
grant



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"M. Grabert" wrote:
> On Wed, 6 Mar 2002, Grant Grundler wrote:
> Argll, I just took a look at the patch and your previous emails
> and now I understand that you try to fix 64/FB.

yes. But user space is still 32-bit. kernel has to
provide 32-bit address for frame buffer and that
seems to work.

> I thought the Visualize-EG stifb driver is also not working on Cxxx
> machines. Is this due to the same problem ?

Thomas Bogendoerf thinks all PA 2.0 machines don't map the user space
address correctly (40-bit physical address) in the CPU TLB/PDIR.
He also found that U-bit (mark pages as uncacheable) needs to be
set even though the CPU shouldn't require it. Maybe this is
a hint that 32-bit kernel needs more work for PA2.0 architecture.

> Or is this
> specific for true 64bit workstations as the Cyyyy (hence the
> 64iocls problem).

The goal is to run 32-bit kernel on Cxxx/Cyyyy machines.
I tried 64-bit to avoid the TLB/PDIR addressing problems.
32 vs 64-bit behaviours just help narrow down the scope
of the bugs.

grant



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Hi all,

Awaiting the LKCD of Bruno, I try to figure out how to debug this bug
crashing the system without any other debuging then printk.

So with the help of a developper of evems (Kevin Corry) I put some printk
around ioctl code where crash occurs as follow:

...
int
evms_cs_allocate_memory(void **pp, int size)
{
        int rc = 0;

     printk(KERN_ERR "--evms: %s, %s call; size=%u.\n", __FILE__ ,
__FUNCTION__,  size );
     /* verify a valid size parameter was specified */
     if (size <= 0)
          /* return NULL on invalid size */
          *pp = NULL;
     else {
          *pp = kmalloc(size, GFP_KERNEL);
//        *pp = kmalloc(size, GFP_NOIO);
          if (*pp == NULL)
               rc = -ENOMEM;
          else {
               memset(*pp, 0, size);
               atomic_inc(&evms_allocs);
     printk(KERN_ERR "--evms: %s, %s call; size=%u, aft atomic_inc.\n",
__FILE__ , __FUNCTION__,  size );
          }
     }

        return(rc);
}
EXPORT_SYMBOL(evms_cs_allocate_memory);
...
#define MAX_IO_SIZE 128
static int
evms_ioctl_cmd_sector_io(void * arg)
{
        int rc;
     evms_sector_t io_size = MAX_IO_SIZE;
        evms_sector_io_t tmp, *user_parms;
        evms_logical_node_t *disk_node = NULL;
        evms_list_node_t *list_node;
        unsigned char *io_buffer;

     printk(KERN_ERR "--evms: %s, %s call.\n", __FILE__ , __FUNCTION__ );
     printk(KERN_ERR "io_buffer address: %u.\n", &io_buffer);
        rc = 0;
        list_node = NULL;
        io_buffer = NULL;

        user_parms = (evms_sector_io_t *)arg;
        /* copy user's parameters to kernel space */
        if (copy_from_user(&tmp, user_parms, sizeof(tmp)))
                rc = -EFAULT;

        /* check handle for validity */
        if (!rc) {
                rc = -EINVAL;
                disk_node = (evms_logical_node_t *)(tmp.disk_handle ^
EVMS_HANDLE_KEY);
                for (list_node = evms_global_device_list; list_node;
list_node = list_node->next)
                        if (list_node->item == disk_node) {
                                rc = 0;
                                break;
                        }
        }
        if (!rc) {
          /* allocate a io buffer upto 64Kbytes in size */
          if (tmp.sector_count < MAX_IO_SIZE)
               io_size = tmp.sector_count;

          /* allocate buffer large enough to hold a single sector */
                rc = evms_cs_allocate_memory(
               (void **)&io_buffer,
               io_size << EVMS_VSECTOR_SIZE_SHIFT);
     }
        /* perform io with specified disk */
        if (!rc) {
          evms_sector_t io_sector_offset, io_remaining;
          u_int64_t io_bytes;
          u_char *user_buffer_ptr;

          printk(KERN_ERR "--evms: %s, %s call, ckp6; rc=%i.\n", __FILE__ ,
__FUNCTION__, rc );
          io_remaining = tmp.sector_count;
          printk(KERN_ERR "--evms: %s, %s call, ckp7: io_remaining=%llu.
\n", __FILE__ , __FUNCTION__, io_remaining );
          io_sector_offset = 0;
          printk(KERN_ERR "--evms: %s, %s call, ckp7p: io_sector_offset
=%llu.\n", __FILE__ , __FUNCTION__, io_sector_offset );
          user_buffer_ptr = user_parms->buffer_address;
          printk(KERN_ERR "--evms: %s, %s call, ckp7pp.\n", __FILE__ ,
__FUNCTION__ );
          while(io_remaining) {
               /* compute the io_size for this pass */
               io_size = (io_remaining >= MAX_IO_SIZE) ?
                    MAX_IO_SIZE : io_remaining;

               io_bytes = io_size << EVMS_VSECTOR_SIZE_SHIFT;
                        /* for writes, copy a sector from user to kernel */
               printk(KERN_ERR "--evms: %s, %s call, ckp8; io_size=%i.\n",
__FILE__ , __FUNCTION__, io_size );
                        if (tmp.io_flag == 1) {
                                /* copy sector from user data buffer */
                                if (copy_from_user(io_buffer,
                                 user_buffer_ptr,
                                 io_bytes))
                                        rc = -EFAULT;
                        }
               printk(KERN_ERR "--evms: %s, %s call, ckp8; rc=%i.\n",
__FILE__ , __FUNCTION__, rc );
                        if (rc) break;

                        /* perform IO one sector at a time */
                        rc = INIT_IO(
                                disk_node,
                                tmp.io_flag,
                                io_sector_offset + tmp.starting_sector,
                                io_size,
                                io_buffer);
               printk(KERN_ERR "--evms: %s, %s call, ckp9; rc=%i.\n",
__FILE__ , __FUNCTION__, rc );

...

and here is what I obtain:
(capture with minicom on another system)

--ldev_mgr: scsi: Channel = 0, Id = 6, Lun = 0, Capacity = 17773524
--ldev_mgr: scsi: Channel = 0, Id = 3, Lun = 0, Capacity = 4194685
--evms: evms.c, evms_ioctl_cmd_sector_io call.
io_buffer address: 374884016.
--evms: evms.c, evms_cs_allocate_memory call; size=512.
--evms: evms.c, evms_cs_allocate_memory call; size=512, aft atomic_inc.
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp6; rc=0.
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp7: io_remaining=1.
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp7p: io_sector_offset=0.
WARNING! Stack pointer and cr31 do not correspond!
Dumping virtual address stack instead
...

(I also attache the full log if interest)

So it seems to failled on the assignement: "user_buffer_ptr =
user_parms->buffer_address;" . That is over my understanding without much
help. Any idea ?

Thanks in advance for attention and help,
     Joel

PS1: I cast (size_t) in the call to evms_cs_allocate_memory because I
suspect
first a BigEndian problem in the conversion between a unsigned long long
and
unsigned int . But it is not (another simple test prove it).

PS2: I also suspect a problem of optimisation with gcc-3 (known bug) and I
recompile all kernel and tools with option -O1 but no more success.

PS3: I use here the precompile tools of Debian pakage but as I presume it
does
not help. (I still have to post a major bug report about it for this panic)

PS4: This tools works perfectly on my i386 with a ext3 fs for the dir I
used the most: /usr/src until two weeks without any problems

(See attached file: K-2.4-Evms.doc.gz)

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Subject: Re: [parisc-linux] SMP support
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HP J5000 running 2.4.17-32-smp package

> > > cpu  599904 33379482 34656795 68636319
> > > cpu0 0 0 64 68636186
> > > cpu1 599904 33379482 34656731 133
> > >

> for comparison: (2.4.17 on an x86 smp-box)
>
> cpu  2867 96 1822 231717
> cpu0 1400 37 671 116143
> cpu1 1467 59 1151 115574
>

I wasn't seeing any proof anywhere on the system, other than cpuinfo, that
this box was using 2 processors, so I was looking for some.  This looks to
me like smp is broken.  It sees 2 processors, but only one is used.  I
just tried 2.4.16-32-smp and it is like this too.




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"=?iso-8859-1?Q?Jo=EBl_Soete?=" wrote:

>           printk(KERN_ERR "--evms: %s, %s call, ckp7p: io_sector_offset
> =%llu.\n", __FILE__ , __FUNCTION__, io_sector_offset );
>           user_buffer_ptr = user_parms->buffer_address;
>           printk(KERN_ERR "--evms: %s, %s call, ckp7pp.\n", __FILE__ ,
> __FUNCTION__ );
....

> So it seems to failled on the assignement: "user_buffer_ptr =
> user_parms->buffer_address;" . That is over my understanding without much
> help. Any idea ?

Could it be that "user_parms->buffer_address" should really be
"tmp->buffer_address"?

Just wondering if the copy_from_user() higher up in the code means
arg points to something in userspace. getting stack unwinds
for problems like this would be really nice...(hint hint)

grant



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On Wed, 6 Mar 2002, Grant Grundler wrote:

> "M. Grabert" wrote:
> > very nice!
> > Is the Visual-EG of the same type as the Visual-EG in my C240?

Arghhll. Forget it, I have a Visualize-FX2 (A4552A) card!
I should really now my system ;)

> > Can you use the driver for Visual-FX aswell (AFAIK these are similar) ?

except for the fact that FX do 3D and EG not ;)

> They are not similar. Vis-EG is 1280x1024 8 bit.
> Vis-FX are all 24-bit color. FX2/4/6 have 3d acceleration
> and texture mapping functionality (AFAIK, Vis-FXe does not)
> I think Vis-FX can handle higher resolutions as well.

Well, I was talking about the 2D stuff. I suppose the
2D drawing commands are the same as on the -EG (at least I hope so).

Does anybody know a good PCI graphics card (Universal or 3.3 voltage)
that is supported in XFree-4 (and may run in a C240) ?

Thanks max




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On Wed, Mar 06, 2002 at 01:01:01AM -0700, Grant Grundler wrote:
> 
> Getting closer.

right of me is a monitor connected to a B2600 with a X screen on it :-)

> I suspect some parameter isn't right for FB device definition
> but don't know what. Hoping the diagonal lines are the clue
> that someone could tell me about - some sort of "off-by-one"
> type of error.

No jsm is right, the U bit doesn't matter, if we set the right
physical address in the TLB. I really don't understand why it's
needed to supply more than 40bit, but with the patch below X works
(fbi still crashes the machine, but that could be a font problem,
as well). Before I'll commit the change, I'll post it here for
comments.

Thomas.

PS: VIS-EG users, who don't get a clear tux on the screen after startup
should select a non double buffered mode. There's more to do to get it
working in double buffered mode.


Index: entry.S
===================================================================
RCS file: /home/cvs/parisc/linux/arch/parisc/kernel/entry.S,v
retrieving revision 1.90
diff -u -p -r1.90 entry.S
--- entry.S	2002/03/03 23:00:10	1.90
+++ entry.S	2002/03/06 23:13:33
@@ -1045,8 +1045,6 @@ dtlb_miss_20w:
 	space_to_prot   spc prot        /* create prot id from space */
 	depd            pte,8,7,prot    /* add in prot bits from pte */
 
-	extrd,u,*=      pte,_PAGE_NO_CACHE_BIT+32,1,r0
-	depdi		1,12,1,prot
 	extrd,u,*=      pte,_PAGE_USER_BIT+32,1,r0
 	depdi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
 	extrd,u,*= 	pte,_PAGE_GATEWAY_BIT+32,1,r0
@@ -1055,7 +1053,7 @@ dtlb_miss_20w:
 	/* Get rid of prot bits and convert to page addr for idtlbt */
 
 	depdi		0,63,12,pte
-	extrd,u         pte,56,32,pte
+	extrd,u         pte,56,52,pte
 	idtlbt          pte,prot
 
 	rfir
@@ -1124,8 +1122,6 @@ nadtlb_miss_20w:
 	space_to_prot   spc prot        /* create prot id from space */
 	depd            pte,8,7,prot    /* add in prot bits from pte */
 
-	extrd,u,*=      pte,_PAGE_NO_CACHE_BIT+32,1,r0
-	depdi		1,12,1,prot
 	extrd,u,*=      pte,_PAGE_USER_BIT+32,1,r0
 	depdi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
 	extrd,u,*= 	pte,_PAGE_GATEWAY_BIT+32,1,r0
@@ -1134,7 +1130,7 @@ nadtlb_miss_20w:
 	/* Get rid of prot bits and convert to page addr for idtlbt */
 
 	depdi		0,63,12,pte
-	extrd,u         pte,56,32,pte
+	extrd,u         pte,56,52,pte
 	idtlbt          pte,prot
 
 	rfir
@@ -1151,7 +1147,7 @@ nadtlb_check_flush_20w:
 	/* Get rid of prot bits and convert to page addr for idtlbt */
 
 	depdi		0,63,12,pte
-	extrd,u         pte,56,32,pte
+	extrd,u         pte,56,52,pte
 	idtlbt          pte,prot
 
 	rfir
@@ -1743,8 +1739,6 @@ dbit_nolock_20w:
 	space_to_prot   spc prot        /* create prot id from space */
 	depd            pte,8,7,prot    /* add in prot bits from pte */
 
-	extrd,u,*=      pte,_PAGE_NO_CACHE_BIT+32,1,r0
-	depdi		1,12,1,prot
 	extrd,u,*=      pte,_PAGE_USER_BIT+32,1,r0
 	depdi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
 	extrd,u,*= 	pte,_PAGE_GATEWAY_BIT+32,1,r0
@@ -1753,7 +1747,7 @@ dbit_nolock_20w:
 	/* Get rid of prot bits and convert to page addr for idtlbt */
 
 	depdi		0,63,12,pte
-	extrd,u         pte,56,32,pte
+	extrd,u         pte,56,52,pte
 	idtlbt          pte,prot
 #ifdef CONFIG_SMP
 	CMPIB=,n        0,spc,dbit_nounlock_20w


-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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FYI...

HP announced new 1-2way 2U servers today, named the "rp2400" line. This is an 
update of the a400/a500 class machines to the PA8700 processor, running at 
either 650 or 750MHz.

Press release at,
http://www.hp.com/hpinfo/newsroom/press/06mar02a.htm

Product page at,
http://www.hp.com/products1/servers/rackoptimized/rp2400/index.html

I was amazed to learn that the low-end one will "start at an estimated U.S. 
street price of less than $1,000." I'm assuming that's the UP 650 module with 
minimal ram and disk but it's still cool. This may be the first parisc system 
ever to ship from HP at under $1000USD.

Here in HP's Linux Lab we haven't got one to test with yet but you can bet we 
will soon :) If anyone gets ahold of one of these please try it and send 
results to the list/hwdb.

Long live parisc!

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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> > i need to recompile to include smbfs (which i think would be very handy
if
> > compiled into the kernel as standard)
>
> last i heard it still wouldn't compile.  but maybe it got fixed and i
> don't remember.
>

just recompiled the kernel with smbfs & it works fine

James S








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Thomas Bogendoerfer wrote:
> right of me is a monitor connected to a B2600 with a X screen on it :-)

Cool!

> No jsm is right, the U bit doesn't matter, if we set the right
> physical address in the TLB. I really don't understand why it's
> needed to supply more than 40bit,

B2600 has PA-8600. Maybe PA-8600 needs 44 bits of physical address?
PA-8000 only needed 40-bits, iirc.
I thought N-class (PA-8500) used 44-bits.

> but with the patch below X works
> (fbi still crashes the machine, but that could be a font problem,
> as well). Before I'll commit the change, I'll post it here for
> comments.

I tried it with 32-bit kernel on c3k.  That hpmc'd.
(Vis-EG, 1600x1200 8bit).
Are you using 64-bit kernel?

It's bedtime here and I need to post a diff here as well.

thanks,
grant



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Subject: [parisc-linux] PATCH SBA SMP + other mis
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Hi all,

I need to review this myself one more time after I had some sleep.
This is a set of misc changes I have outstanding.
(also stored on ftp.parisc-linux.org:patches/sba_misc.diff)

o SBA SMP bug fix from Alex Williamson
o ioctl32.c FB wrapper enabled for FB support
o add a warning to indicate we are ignoring a "directed" MMIO
  range that a given elroy is programmed to forward.
  Because of possible overlaps with distributed ranges, it's
  non-trivial to request_resource. Still thinking about how
  to do this right. May need to move resource mgt into
  lba_fixup_bus() where we know whether PCI devices are below
  an elroy.

grant

Index: arch/parisc/kernel/ioctl32.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/ioctl32.c,v
retrieving revision 1.9
diff -u -p -r1.9 ioctl32.c
--- arch/parisc/kernel/ioctl32.c	2002/03/03 05:35:11	1.9
+++ arch/parisc/kernel/ioctl32.c	2002/03/07 07:48:08
@@ -83,6 +83,8 @@
 #include <linux/sonet.h>
 #include <linux/atm_suni.h>
 
+#include <asm/module.h>	/* get #define module_map() */
+
 /* Use this to get at 32-bit user passed pointers. 
    See sys_sparc32.c for description about these. */
 #define A(__x) ((unsigned long)(__x))
@@ -453,6 +455,7 @@ static inline int hdio_getgeo(unsigned i
 	return err ? -EFAULT : 0;
 }
 
+
 #if 0
 /* looks like SPARC only - eg sbus video */
 struct  fbcmap32 {
@@ -556,6 +559,7 @@ static inline int fbiogscursor(unsigned 
 	set_fs (old_fs);
 	return ret;
 }
+#endif /* 0 */
 
 struct fb_fix_screeninfo32 {
 	char			id[16];
@@ -655,21 +659,36 @@ static int fb_ioctl_trans(unsigned int f
 	if (err)
 		goto out;
 	switch (cmd) {
+		struct fb_fix_screeninfo32 fix32;
 	case FBIOGET_FSCREENINFO:
-		err = __copy_to_user((char *)((struct fb_fix_screeninfo32 *)arg)->id, (char *)fix.id, sizeof(fix.id));
-		err |= __put_user((__u32)(unsigned long)fix.smem_start, &((struct fb_fix_screeninfo32 *)arg)->smem_start);
-		err |= __put_user(fix.smem_len, &((struct fb_fix_screeninfo32 *)arg)->smem_len);
-		err |= __put_user(fix.type, &((struct fb_fix_screeninfo32 *)arg)->type);
-		err |= __put_user(fix.type_aux, &((struct fb_fix_screeninfo32 *)arg)->type_aux);
-		err |= __put_user(fix.visual, &((struct fb_fix_screeninfo32 *)arg)->visual);
-		err |= __put_user(fix.xpanstep, &((struct fb_fix_screeninfo32 *)arg)->xpanstep);
-		err |= __put_user(fix.ypanstep, &((struct fb_fix_screeninfo32 *)arg)->ypanstep);
-		err |= __put_user(fix.ywrapstep, &((struct fb_fix_screeninfo32 *)arg)->ywrapstep);
-		err |= __put_user(fix.line_length, &((struct fb_fix_screeninfo32 *)arg)->line_length);
-		err |= __put_user((__u32)(unsigned long)fix.mmio_start, &((struct fb_fix_screeninfo32 *)arg)->mmio_start);
-		err |= __put_user(fix.mmio_len, &((struct fb_fix_screeninfo32 *)arg)->mmio_len);
-		err |= __put_user(fix.accel, &((struct fb_fix_screeninfo32 *)arg)->accel);
-		err |= __copy_to_user((char *)((struct fb_fix_screeninfo32 *)arg)->reserved, (char *)fix.reserved, sizeof(fix.reserved));
+		memset(&fix32, 0, sizeof(fix32));
+		memcpy(fix32.id, fix.id, sizeof(fix32.id));
+		fix32.smem_start = (__u32)(unsigned long)fix.smem_start;
+		fix32.smem_len	= fix.smem_len;
+		fix32.type	= fix.type;
+		fix32.type_aux	= fix.type_aux;
+		fix32.visual	= fix.visual;
+		fix32.xpanstep	= fix.xpanstep;
+		fix32.ypanstep	= fix.ypanstep;
+		fix32.ywrapstep = fix.ywrapstep;
+		fix32.line_length = fix.line_length;
+		fix32.mmio_start = (__u32)(unsigned long)fix.mmio_start;
+		fix32.mmio_len	= fix.mmio_len;
+		fix32.accel	= fix.accel;
+		memcpy(fix32.reserved, fix.reserved, sizeof(fix32.reserved));
+		err = __copy_to_user((void *) arg, (const void *) &fix32, sizeof(fix32));
+
+printk("fix  : %lx %x  %x %x %x  %x %x %x %x  %lx %x %x\n",
+	fix.smem_start, fix.smem_len,
+	fix.type, fix.type_aux, fix.visual,
+	fix.xpanstep, fix.ypanstep, fix.ywrapstep, fix.line_length,
+	fix.mmio_start, fix.mmio_len, fix.accel);
+printk("fix32: %x %x  %x %x %x  %x %x %x %x  %x %x %x\n",
+	fix32.smem_start, fix32.smem_len,
+	fix32.type, fix32.type_aux, fix32.visual,
+	fix32.xpanstep, fix32.ypanstep, fix32.ywrapstep, fix32.line_length,
+	fix32.mmio_start, fix32.mmio_len, fix32.accel);
+
 		break;
 	case FBIOGETCMAP:
 		err = __copy_to_user((char *)A(red), cmap.red, cmap.len * sizeof(__u16));
@@ -690,7 +709,6 @@ out:	if (cmap.red) kfree(cmap.red);
 	if (cmap.transp) kfree(cmap.transp);
 	return err;
 }
-#endif
 
 static int hdio_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
 {
@@ -2822,6 +2840,7 @@ COMPATIBLE_IOCTL(FBIOGCURMAX)
 #endif
 COMPATIBLE_IOCTL(FBIOGET_VSCREENINFO)
 COMPATIBLE_IOCTL(FBIOPUT_VSCREENINFO)
+
 COMPATIBLE_IOCTL(FBIOPAN_DISPLAY)
 COMPATIBLE_IOCTL(FBIOGET_FCURSORINFO)
 COMPATIBLE_IOCTL(FBIOGET_VCURSORINFO)
@@ -3365,10 +3384,9 @@ HANDLE_IOCTL(BLKFRAGET, w_long)
 HANDLE_IOCTL(BLKSECTGET, w_long)
 HANDLE_IOCTL(BLKPG, blkpg_ioctl_trans)
 
-#if 0
+HANDLE_IOCTL(FBIOGET_FSCREENINFO, fb_ioctl_trans)
 HANDLE_IOCTL(FBIOGETCMAP, fb_ioctl_trans)
 HANDLE_IOCTL(FBIOPUTCMAP, fb_ioctl_trans)
-#endif
 
 HANDLE_IOCTL(HDIO_GET_KEEPSETTINGS, hdio_ioctl_trans)
 HANDLE_IOCTL(HDIO_GET_UNMASKINTR, hdio_ioctl_trans)
Index: arch/parisc/kernel/sba_iommu.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/sba_iommu.c,v
retrieving revision 1.64
diff -u -p -r1.64 sba_iommu.c
--- arch/parisc/kernel/sba_iommu.c	2001/11/30 23:50:01	1.64
+++ arch/parisc/kernel/sba_iommu.c	2002/03/07 07:48:09
@@ -898,10 +898,6 @@ sba_unmap_single(struct pci_dev *dev, dm
 	ioc = GET_IOC(dev);
 	ASSERT(ioc);
 
-#if DELAYED_RESOURCE_CNT > 0
-	d = &(ioc->saved[ioc->saved_cnt]);
-#endif
-
 	offset = iova & ~IOVP_MASK;
 
 	DBG_RUN("%s() iovp 0x%lx/%x\n",
@@ -912,12 +908,14 @@ sba_unmap_single(struct pci_dev *dev, dm
 	size = ROUNDUP(size, IOVP_SIZE);
 
 	spin_lock_irqsave(&ioc->res_lock, flags);
+
 #ifdef CONFIG_PROC_FS
 	ioc->usingle_calls++;
 	ioc->usingle_pages += size >> IOVP_SHIFT;
 #endif
 
 #if DELAYED_RESOURCE_CNT > 0
+	d = &(ioc->saved[ioc->saved_cnt]);
 	d->iova = iova;
 	d->size = size;
 	if (++(ioc->saved_cnt) >= DELAYED_RESOURCE_CNT) {
Index: arch/parisc/kernel/lba_pci.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/lba_pci.c,v
retrieving revision 1.48
diff -u -p -r1.48 lba_pci.c
--- arch/parisc/kernel/lba_pci.c	2002/01/25 22:58:50	1.48
+++ arch/parisc/kernel/lba_pci.c	2002/03/07 07:48:10
@@ -34,6 +34,7 @@
 #include <linux/kernel.h>
 #include <linux/spinlock.h>
 #include <linux/init.h>		/* for __init and __devinit */
+/* #define PCI_DEBUG	enable ASSERT */
 #include <linux/pci.h>
 #include <linux/ioport.h>
 #include <linux/slab.h>
@@ -939,7 +940,7 @@ LBA_PORT_IN(32, 0)
 #define LBA_PORT_OUT(size, mask) \
 static void lba_astro_out##size (struct pci_hba_data *d, u16 addr, u##size val) \
 { \
-	ASSERT(bus != NULL); \
+	ASSERT(d != NULL); \
 	DBG_PORT("%s(0x%p, 0x%x, 0x%x)\n", __FUNCTION__, d, addr, val); \
 	WRITE_REG##size(val, LBA_ASTRO_PORT_BASE + addr); \
 	if (LBA_DEV(d)->hw_rev < 3) \
@@ -1181,7 +1182,8 @@ lba_legacy_resources(struct parisc_devic
 	** "Directed" ranges are used when the "distributed range" isn't
 	** sufficient for all devices below a given LBA.  Typically devices
 	** like graphics cards or X25 may need a directed range when the
-	** bus has multiple slots (ie multiple devices).
+	** bus has multiple slots (ie multiple devices) or the device
+	** needs more than the typical 4 or 8MB a distributed range offers.
 	**
 	** The main reason for ignoring it now frigging complications.
 	** Directed ranges may overlap (and have precedence) over
@@ -1191,6 +1193,26 @@ lba_legacy_resources(struct parisc_devic
 	** since they may be assigned a directed range which overlaps
 	** an existing (but unused portion of) distributed range.
 	*/
+	r = &(lba_dev->hba.elmmio_space);
+	r->name  = "extra LBA PCI LMMIO";
+	r->flags = IORESOURCE_MEM;
+	r->start = READ_REG32(pa_dev->hpa + LBA_ELMMIO_BASE);
+	r->end   = 0;
+
+	/* check Range Enable bit */
+	if (r->start & 1) {
+		/* First baby step to getting Direct Ranges listed in /proc.
+		** AFAIK, only Sprockets PDC will setup a directed Range.
+		*/
+
+		r->start &= ~1;
+		r->end    = r->start;
+		r->end   += ~READ_REG32(pa_dev->hpa + LBA_ELMMIO_MASK);
+		printk(KERN_DEBUG "WARNING: Ignoring enabled ELMMIO BASE 0x%0x  SIZE 0x%x\n",
+			r->start,
+			r->end + 1);
+
+	}
 
 	r = &(lba_dev->hba.io_space);
 	r->name  = "LBA PCI I/O Ports";
@@ -1240,7 +1262,7 @@ lba_hw_init(struct lba_device *d)
 #endif	/* DEBUG_LBA_PAT */
 
 #ifdef __LP64__
-#warning Need to add support for PDC_PAT_IO "Get slot status" - OLAR support
+#warning FIXME add support for PDC_PAT_IO "Get slot status" - OLAR support
 #endif
 
 #ifdef PDC_PAT_BUG
Index: include/asm-parisc/pci.h
===================================================================
RCS file: /var/cvs/linux/include/asm-parisc/pci.h,v
retrieving revision 1.47
diff -u -p -r1.47 pci.h
--- include/asm-parisc/pci.h	2002/02/28 07:15:36	1.47
+++ include/asm-parisc/pci.h	2002/03/07 07:48:10
@@ -53,6 +53,7 @@ struct pci_hba_data {
 	struct resource bus_num;	/* PCI bus numbers */
 	struct resource io_space;	/* PIOP */
 	struct resource lmmio_space;	/* bus addresses < 4Gb */
+	struct resource elmmio_space;	/* additional bus addresses < 4Gb */
 	unsigned long   lmmio_space_offset;  /* CPU view - PCI view */
 	void *          iommu;          /* IOMMU this device is under */
 	/* REVISIT - spinlock to protect resources? */



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On Thu, Mar 07, 2002 at 12:31:16AM -0700, Grant Grundler wrote:
> Thomas Bogendoerfer wrote:
> > No jsm is right, the U bit doesn't matter, if we set the right
> > physical address in the TLB. I really don't understand why it's
> > needed to supply more than 40bit,
> 
> B2600 has PA-8600. Maybe PA-8600 needs 44 bits of physical address?
> PA-8000 only needed 40-bits, iirc.
> I thought N-class (PA-8500) used 44-bits.

after sleeping over the problem, I believe we were short just one bit. We
extracted 32 bits from the PTE. The lower 5 bits are zeroed and will
be the 4 size bits and the one 0 bit in the TLB. That leaves 27 bits for
the physical page number. Adding the 12 offset bits for 4k pages gives us
just 39 bits, but we need 40. So instead of the change 32 -> 52 a
change from 32 -> 33 should do the same. On the other side using all
bits shouldn't matter and we are prepared for 44 bit and more. BTW.
isn't our current PDC space expansion wrong for "odd" sized address
spaces ? It should work for 48 and 56, but not for anything else.
Or do I miss something ?

I'm packing for Cebit at the moment, and will be away for 2 weeks. So
I can't check my theory in the next days. I will have a J6700 at Cebit
to play with, but I don't think I'll get spare time in the next couple
of days.

> I tried it with 32-bit kernel on c3k.  That hpmc'd.
> (Vis-EG, 1600x1200 8bit).
> Are you using 64-bit kernel?

yes,  with your last ioctl32 changes. I need to recheck my first entry.S
hack for the narrow mode pa2.0 tlb handler. I think my assembler code
just sucks and setting up the tlbs the same way as for wide mode,
should get us X with 32-bit kernels, too.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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On Thu, Mar 07, 2002 at 12:31:16AM -0700, Grant Grundler wrote:
> Thomas Bogendoerfer wrote:
> > right of me is a monitor connected to a B2600 with a X screen on it :-)
> 
> Cool!
>

Speaking of framebuffers. 

Anyone working with DirectFB? (http://www.directfb.org)

I just recently compiled DirectFB on our 715/50 cluster, so I can get
a lightweight library ontop of fbdev (thanks for moral support Fleedwood!)

The only supported mode is RGB332 which is like a fixed index 8-bit vis.
It's displaying stuff (I think, with wrong colours). I'm just at a loss 
to find the right colour palette for 3,3,2 ? :)

More research needed!

c. 



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Xref: news.gmane.org gmane.linux.ports.parisc:14257

Hello Grant,

Thanks a lot.

I am not quiet sure to be absolutely right but for a first test, I only
change "user_parms->buffer_address" by "tmp.buffer_address"
and the system does not anymore crashes:

--ldev_mgr: scsi: Channel =3D 0, Id =3D 6, Lun =3D 0, Capacity =3D 17773524
--ldev_mgr: scsi: Channel =3D 0, Id =3D 3, Lun =3D 0, Capacity =3D 4194685
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp7pp.
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp8; io_size=3D271570960.
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp8; rc=3D0.
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp9; rc=3D0.
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp10.
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp11.
evms_vgscan(267): unaligned access to 0x00022efe at ip=3D0x40207d8f
--ldev_mgr: unrecognized device major : 58

--ldev_mgr: unrecognized device major : 9
--ldev_mgr: found SCSI major : 66 - searching for disks
--ldev_mgr: scsi: major name =3D sd
--ldev_mgr: scsi: number of real devices =3D 0


--ldev_mgr: found SCSI major : 65 - searching for disks
--ldev_mgr: scsi: number of real devices =3D 0
--ldev_mgr: found SCSI major : 8 - searching for disks
--ldev_mgr: scsi: major name =3D sd
--ldev_mgr: scsi: number of real devices =3D 3
--ldev_mgr: scsi: Channel =3D 0, Id =3D 5, Lun =3D 0, Capacity =3D 17773524
--ldev_mgr: scsi: Channel =3D 0, Id =3D 6, Lun =3D 0, Capacity =3D 17773524
--ldev_mgr: scsi: Channel =3D 0, Id =3D 3, Lun =3D 0, Capacity =3D 4194685
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp7pp.
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp8; io_size=3D271570960.
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp8; rc=3D0.
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp9; rc=3D0.
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp10.
--evms: evms.c, evms_ioctl_cmd_sector_io call, ckp11.

As you can see it is not yes perfect because: "evms_vgscan(267): unaligned
access to 0x00022efe at ip=3D0x40207d8f"
and also logs a lot of data page fault:

Mar  7 14:56:03 palinux kernel: do_page_fault() pid=3D267 command
=3D'evms_vgscan' type=3D15 address=3D0x00000000
Mar  7 14:56:03 palinux kernel:
Mar  7 14:56:03 palinux kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Mar  7 14:56:03 palinux kernel: PSW: 00000000000001101111111100001111 Not
tainted
Mar  7 14:56:03 palinux kernel: r00-03  00000000 40070db4 4020910b faf00a80
Mar  7 14:56:03 palinux kernel: r04-07  4008572c 00000000 00000000 00024b00
Mar  7 14:56:03 palinux kernel: r08-11  40240174 000c0e10 000cdc20 000cdae0
Mar  7 14:56:03 palinux kernel: r12-15  00000000 000cdc30 00000000 00000000
Mar  7 14:56:03 palinux kernel: r16-19  00000000 000b2408 00017800 4008572c
Mar  7 14:56:03 palinux kernel: r20-23  40027392 40084dc4 4005f750 4023fc94
Mar  7 14:56:03 palinux kernel: r24-27  00000000 40070db4 00000009 00021b78
Mar  7 14:56:03 palinux kernel: r28-31  00000004 4022b7d4 faf00c40 4020910b
Mar  7 14:56:03 palinux kernel: sr0-3   000003c7 000003c7 00000000 000003c7
Mar  7 14:56:03 palinux kernel: sr4-7   000003c7 000003c7 000003c7 000003c7
Mar  7 14:56:03 palinux kernel:
Mar  7 14:56:03 palinux kernel: IASQ: 000003c7 000003c7 IAOQ: 4005f79b
4005f79f
Mar  7 14:56:03 palinux kernel:  IIR: 0ca01086    ISR: 000003c7  IOR:
00000000
Mar  7 14:56:03 palinux kernel:  CPU:        0   CR30: 16568000 CR31:
10398000
Mar  7 14:56:03 palinux kernel:  ORIG_R28: 00000000

But that is in user space and there gdb (or ddd) will help me.
I will transmit your discover to Kevin it will certainly also help for
i386.

Humm ... have you an idea why this problem did not appears for this i386 or
ppc (the two official supported till now)?

Thanks again for great help,
  Joel

PS: about "getting stack unwinds for problems like this would be really
nice...(hint hint)"
is there somewhere something like which could be modified to hppa (I do not
have a wide skill in programing in user space and none in kernel space, so
I am not sure to be helpfull)



                                                                           =
                                          =20
                    Grant Grundler                                         =
                                          =20
                    <grundler@dsl2.extern        To:     "Jo=EBl Soete" <js=
o@europay.com>                              =20
                    al.hp.com>                   cc:     parisc-linux@lists=
.parisc-linux.org                         =20
                                                 Subject:     Re: [parisc-l=
inux] evms-0.9.1 && hppa (follow ...)     =20
                    06-03-02 11:19 PM                                      =
                                          =20
                                                                           =
                                          =20
                                                                           =
                                          =20




"=3D?iso-8859-1?Q?Jo=3DEBl_Soete?=3D" wrote:

>           printk(KERN_ERR "--evms: %s, %s call, ckp7p: io_sector_offset
> =3D%llu.\n", __FILE__ , __FUNCTION__, io_sector_offset );
>           user_buffer_ptr =3D user_parms->buffer_address;
>           printk(KERN_ERR "--evms: %s, %s call, ckp7pp.\n", __FILE__ ,
> __FUNCTION__ );
....

> So it seems to failled on the assignement: "user_buffer_ptr =3D
> user_parms->buffer_address;" . That is over my understanding without much
> help. Any idea ?

Could it be that "user_parms->buffer_address" should really be
"tmp->buffer_address"?

Just wondering if the copy_from_user() higher up in the code means
arg points to something in userspace. getting stack unwinds
for problems like this would be really nice...(hint hint)

grant






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From - Thu Nov 08 21:21:59 2018
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From: Herb Radford <herbr@magma.ca>
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Subject: [parisc-linux] J3515 10/100 NIC
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I have a (brand new) 10/100 ethernet card that I was hoping to use in a D360.
This would give the D360 a little boost in throughput!
When I inserted it and did an "IN ALL", the card was listed as a "DMA I/O" 
at path 8/8. When I booted the scan found an HSC-PCI card.
However nothing else happens. Is this supported? Do I have to reconfigure 
the kernel somehow?

Here are the 2 selected parts of the PDC output and the I/O scan:

I/O MODULE INFORMATION


                                                                    IODC   IODC

Path (dec)   Type                Bus Slot Mod HVERSION  SVERSION   Vers   Dep

----         ----                --- ---- --- -------- ---------- ------ ------

8            I/O Adapter           0   2   0   0x580f  0x10000b50  0x00   0x00

8/4          A DMA I/O             1   1   0   0x0131  0x00008980  0x98   0x00

8/8          A DMA I/O             1   2   0   0x0040  0x00009d80  0x00   0x00

8/16         Bus Adapter           1   4   0   0x02f0  0x00008100  0x00   0x00

8/16/4       Built-in RS232       16   1   0   0x02f0  0x00008c00  0x00   0x00

8/16/5       Built-in SE SCSI     16   1   1   0x02f0  0x00008280  0x01   0x00

8/16/6       Built-in LAN         16   1   2   0x02f0  0x00008a00  0x02   0x00

8/16/0       Built-in Parallel    16   0   0   0x02f0  0x00007400  0x00   0x00

8/16/7       Built-in Keyboard    16   1   3   0x02f0  0x00008400  0x00   0x00

8/16/8       Built-in Mouse       16   2   0   0x02f0  0x00008400  0x00   0x00

8/20         Bus Adapter           1   5   0   0x0310  0x00008e00  0x00   0x00

8/20/5       Bus Adapter          20   1   1   0x0310  0x00009000  0x00   0x00

8/20/2       RS232 Port           20   0   2   0x0310  0x00008c00  0x00   0x00

10           I/O Adapter           0   2   2   0x580f  0x10000b50  0x00   0x00



<Press any key to continue (q to quit)>






Found devices:

1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb

2. Bluefish Add-on FW-SCSI (4) at 0xf1004000 [8/4], versions 0x13, 0x1, 0x89

3. HP HSC-PCI Cards (4) at 0xf1008000 [8/8], versions 0x4, 0x0, 0x9d

4. UL 550 Lasi Core BA (11) at 0xffd00000 [8/16], versions 0x2f, 0x0, 
0x81,  additional addresses: 0xffc00000

5. UL 550 Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x2f, 0x0, 
0x74,  additional addresses: 0xffd03000

6. UL 550 Lasi Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x2f, 0x0, 
0x8c

7. UL 550 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x2f, 0x0, 0x82

8. UL 350 Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x2f, 0x0, 
0x8a

9. UL 550 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x2f, 0x0, 0x84

10. UL 550 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x2f, 0x0, 0x84

11. UL 550 Core Wax BA (11) at 0xffe00000 [8/20], versions 0x31, 0x0, 0x8e

12. UL 550 Wax Core RS-232 (10) at 0xffe02000 [8/20/2], versions 0x31, 0x0, 
0x8c

13. UL 550 Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x31, 0x0, 0x90

14. U2-IOA BC GSC+ Port (7) at 0xf103f000 [8/63], versions 0x501, 0x1, 0xc

15. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb

16. U2-IOA BC GSC+ Port (7) at 0xf183f000 [10/63], versions 0x501, 0x1, 0xc

17. UL 1w U160 512K/512K (861/D270,D370) (0) at 0xfffa0000 [32], versions 
0x5a2, 0x0, 0x4

18. UL 1 way U160 512K/512K memory (1) at 0xfffb1000 [49], versions 0x76, 
0x0, 0x9

CPU(s): 1 x PA8000 (PCX-U) at 160.000000 MHz

ccio found U2 at 0xfff88000

ccio found U2 at 0xfff8a000




Regards, Herb




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"=?iso-8859-1?Q?Jo=EBl_Soete?=" wrote:
...
> I am not quiet sure to be absolutely right but for a first test, I only
> change "user_parms->buffer_address" by "tmp.buffer_address"
> and the system does not anymore crashes:

Excellent. That was too easy.

...
> As you can see it is not yes perfect because: "evms_vgscan(267): unaligned
> access to 0x00022efe at ip=3D0x40207d8f"

The kernel should be dealing with unaligned access - the msg is a
warning since it will have substantial performance impact.

> and also logs a lot of data page fault:

Yeah - gdb to debug those.

...
> Humm ... have you an idea why this problem did not appears for this i386 or
> ppc (the two official supported till now)?

Dunno. Luck?
Those arches may not be as sensitive to address space issues.

welcome,
grant



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Hi,

is there any JDK I can use with my HP 712/60?
I tried the Sun JDK but I can't compile it.

Does anyone know what to do?

cya,
Tilo





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Subject: Re: [parisc-linux] J3515 10/100 NIC
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Herb Radford wrote:
> However nothing else happens. Is this supported? Do I have to reconfigure 
> the kernel somehow?

Can you post full boot output? and "ifconfig -a" output?



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> is there any JDK I can use with my HP 712/60?
> I tried the Sun JDK but I can't compile it.

I doubt the Sun JDK is supported on parisc-linux...

> Does anyone know what to do?

jikes is available on hppa-linux (apt-get install jikes), although I haven't
tried it myself.  Getting kaffe to work would be ideal, although last time 
I looked at it there's still quite a bit of porting work to do.

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/



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From: Herb Radford <herbr@magma.ca>
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Subject: Re: [parisc-linux] J3515 10/100 NIC
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At 10:16 AM 3/7/02 -0700, Grant Grundler wrote:
>Herb Radford wrote:
> > However nothing else happens. Is this supported? Do I have to reconfigure
> > the kernel somehow?
>
>Can you post full boot output? and "ifconfig -a" output?

Well, Grant, that doesn't show much. But here it is:







Firmware Version  38.40



Duplex Console IO Dependent Code (IODC) revision 0



------------------------------------------------------------------------------

    (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved

------------------------------------------------------------------------------



   Processor   Speed            State           Coprocessor State  Cache Size

   ---------  --------   ---------------------  -----------------  ----------

       0       160 MHz   Active                 Functional          512 KB



   Central Bus Speed (in MHz)  :        120



   Model: D370/1



   Available memory (bytes)    :  536870912

   Good memory required (bytes):   43753472



   Primary boot path:    8/4.4   (dec)

   Alternate boot path:  8/16/5.0   (dec)

   Console path:         8/20/1.0   (dec)

   Keyboard path:        8/16/7.0   (dec)



------- Main Menu -------------------------------------------------------------



         Command                         Description

         -------                         -----------

         BOot [PRI|ALT|<path>]           Boot from specified path

         PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path

         SEArch [DIsplay|IPL] [<path>]   Search for boot devices



         COnfiguration [<command>]       Access Configuration menu/commands

         INformation [<command>]         Access Information menu/commands

         SERvice [<command>]             Access Service menu/commands



         DIsplay                         Redisplay the current menu

         HElp [<menu>|<command>]         Display help for menu or command

         RESET                           Restart the system

-------

Main Menu: Enter command > bo pri

Interact with IPL (Y, N, or Cancel)?> n



Booting...

Boot IO Dependent Code (IODC) revision 152





HARD Booted.

palo ipl 0.97 root@c3k Tue Nov 27 14:51:48 MST 2001



Partition Start(MB) End(MB) Id Type


1               1      23   f0 Palo


2              24     511   82 swap


3             512     999   83 ext2


4            1000    2032   83 ext2




PALO(F0) partition contains:

     0/vmlinux32 3122078 bytes @ 0x48000



Information: No console specified on kernel command line. This is normal.

PALO will choose the console currently  used by firmware (serial).

Command line for kernel: 'root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102'

Selected kernel: /boot/vmlinux from partition 3

ELF32 executable

Entry 00100168 first 00100000 n 6

Segment 0 load 00100000 size 1747032 mediaptr 0x1000

Segment 1 load 002ac000 size 283128 mediaptr 0x1ac000

Segment 2 load 002f4000 size 393476 mediaptr 0x1f2000

Segment 3 load 00358000 size 8192 mediaptr 0x253000

Segment 4 load 00360000 size 32768 mediaptr 0x255000

Segment 5 load 0039f014 size 91456 mediaptr 0x25d014

Branching to kernel entry point 0x00100168.  If this is the last

message you see, you may need to switch your console.  This is

a common symptom -- search the FAQ and mailing list at parisc-linux.org



Linux version 2.4.16-pa29 (bame@dsl2) (gcc version 3.0.2 (Debian)) #1 Sat 
Dec 29 11:32:07 MST 2001

FP[0] enabled: Rev 0 Model 14

The 32-bit Kernel has started...

Determining PDC firmware type: System Map.

model 00005a20 00000481 00000000 00000002 7817542d 100000f0 00000008 
000000b2 000000b2

vers  00000301

CPUID vers 14 rev 11 (0x000001cb)

model 9000/861/D370

Total Memory: 512 Mb

pagetable_init

On node 0 totalpages: 131072

zone(0): 131072 pages.

zone(1): 0 pages.

zone(2): 0 pages.

Kernel command line: root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102

Console: colour dummy device 160x64

Calibrating delay loop... 319.48 BogoMIPS

Memory: 513196k available

Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)

Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)

Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)

Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)

Page-cache hash table entries: 131072 (order: 7, 524288 bytes)

Searching for devices...

Found devices:

1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb

2. Bluefish Add-on FW-SCSI (4) at 0xf1004000 [8/4], versions 0x13, 0x1, 0x89

3. HP HSC-PCI Cards (4) at 0xf1008000 [8/8], versions 0x4, 0x0, 0x9d

4. UL 550 Lasi Core BA (11) at 0xffd00000 [8/16], versions 0x2f, 0x0, 
0x81,  additional addresses: 0xffc00000

5. UL 550 Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x2f, 0x0, 
0x74,  additional addresses: 0xffd03000

6. UL 550 Lasi Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x2f, 0x0, 
0x8c

7. UL 550 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x2f, 0x0, 0x82

8. UL 350 Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x2f, 0x0, 
0x8a

9. UL 550 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x2f, 0x0, 0x84

10. UL 550 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x2f, 0x0, 0x84

11. UL 550 Core Wax BA (11) at 0xffe00000 [8/20], versions 0x31, 0x0, 0x8e

12. UL 550 Wax Core RS-232 (10) at 0xffe02000 [8/20/2], versions 0x31, 0x0, 
0x8c

13. UL 550 Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x31, 0x0, 0x90

14. U2-IOA BC GSC+ Port (7) at 0xf103f000 [8/63], versions 0x501, 0x1, 0xc

15. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb

16. U2-IOA BC GSC+ Port (7) at 0xf183f000 [10/63], versions 0x501, 0x1, 0xc

17. UL 1w U160 512K/512K (861/D270,D370) (0) at 0xfffa0000 [32], versions 
0x5a2, 0x0, 0x4

18. UL 1 way U160 512K/512K memory (1) at 0xfffb1000 [49], versions 0x76, 
0x0, 0x9

CPU(s): 1 x PA8000 (PCX-U) at 160.000000 MHz

ccio found U2 at 0xfff88000

ccio found U2 at 0xfff8a000

ccio-dma.c: failed to claim CCIO bus address space!

Lasi version 0 at 0xffd00000 found.

LED display at ffd0c000 registered

Wax at 0xffe00000 found.

Wax: HIL Keyboard-NMI registered.

Wax EISA Adapter found at 0xfc000000

EISA: failed to claim EISA Bus address space!

Warning : device (11, 0x31, 0x0, 0x90) NOT claimed by EISA Bus Adapter

Dino version 3.x (card mode) found at 0xf1008000

Dino: Failed to allocate memory region

POSIX conformance testing by UNIFIX

Linux NET4.0 for Linux 2.4

Based upon Swansea University Computer Society NET3.039

Enabled soft power switch (polling mode, io=0xf0140000).

Starting kswapd

parport_init_chip: initialize bidirectional-mode.

parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]

pty: 256 Unix98 ptys configured

Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ 
SERIAL_PCI enabled

ttyS00 at iomem 0xffd05800 (irq = 90) is a 16550A

ttyS01 at iomem 0xffe02800 (irq = 121) is a 16550A

PS/2 keyboard port at 0xffd08000 (irq 69) found, no device attached.

PS/2 psaux port at 0xffd08100 (irq 69) found, no device attached.

lp0: using parport0 (interrupt-driven).

Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)

block: 128 slots per queue, batch=32

RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize

loop: loaded (max 8 devices)

Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)

PCI: Unable to reserve I/O region #1:80@f364d800 for device 00:01.0

Trying to free nonexistent resource <f364d800-f364d87f>

Trying to free nonexistent resource <43695000-4369507f>

Found i82596 at 0xffd07000, IRQ 87

eth0: 82596 at 0xffd07000, 08 00 09 D2 0C 1E IRQ 87.

82596.c $Revision: 1.27 $

SCSI subsystem driver Revision: 1.00

zalon_scsi_callback: Zalon vers field is 0x1, IRQ 35

ncr53c8xx: 53c720 detected

ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential

scsi0 : ncr53c8xx-3.4.3b-20010512

   Vendor: SEAGATE   Model: ST32171W          Rev: HPC1

   Type:   Direct-Access                      ANSI SCSI revision: 02

   Vendor: SEAGATE   Model: ST32171W          Rev: HPC1

   Type:   Direct-Access                      ANSI SCSI revision: 02

   Vendor: SEAGATE   Model: ST32171W          Rev: HPC1

   Type:   Direct-Access                      ANSI SCSI revision: 02

   Vendor: SEAGATE   Model: ST34572WC         Rev: HP03

   Type:   Direct-Access                      ANSI SCSI revision: 02

   Vendor: SEAGATE   Model: ST34572WC         Rev: HP03

   Type:   Direct-Access                      ANSI SCSI revision: 02

53c700: Version 2.6 By James.Bottomley@HansenPartnership.com

scsi1: 53c710 rev 2

scsi1 : LASI SCSI 53c700

scsi1: (2:0) Synchronous at offset 8, period 100ns

   Vendor: TOSHIBA   Model: CD-ROM XM-5701TA  Rev: 1557

   Type:   CD-ROM                             ANSI SCSI revision: 02

Attached scsi disk sda at scsi0, channel 0, id 4, lun 0

Attached scsi disk sdb at scsi0, channel 0, id 8, lun 0

Attached scsi disk sdc at scsi0, channel 0, id 9, lun 0

Attached scsi disk sdd at scsi0, channel 0, id 10, lun 0

Attached scsi disk sde at scsi0, channel 0, id 11, lun 0

ncr53c720-0-<4,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)

SCSI device sda: 4165272 512-byte hdwr sectors (2133 MB)

Partition check:

  sda: sda1 sda2 sda3 sda4

ncr53c720-0-<8,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)

SCSI device sdb: 4165272 512-byte hdwr sectors (2133 MB)

  sdb: sdb1

ncr53c720-0-<9,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)

SCSI device sdc: 4165272 512-byte hdwr sectors (2133 MB)

  sdc: unknown partition table

ncr53c720-0-<10,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)

SCSI device sdd: 8388314 512-byte hdwr sectors (4295 MB)

  sdd: unknown partition table

ncr53c720-0-<11,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)

SCSI device sde: 8388314 512-byte hdwr sectors (4295 MB)

  sde: unknown partition table

Attached scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0

sr0: scsi-1 drive

Uniform CD-ROM driver Revision: 3.12

sticonsole_init: searching for STI ROMs

BUG: Skipping previously registered driver: sti (native)

md: linear personality registered as nr 1

md: raid0 personality registered as nr 2

md: raid1 personality registered as nr 3

md: raid5 personality registered as nr 4

raid5: measuring checksumming speed

    8regs     :   350.800 MB/sec

    8regs_prefetch:   350.800 MB/sec

    32regs    :   272.400 MB/sec

    32regs_prefetch:   272.400 MB/sec

raid5: using function: 8regs_prefetch (350.800 MB/sec)

md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27

md: Autodetecting RAID arrays.

md: autorun ...

md: ... autorun DONE.

NET4: Linux TCP/IP 1.0 for NET4.0

IP Protocols: ICMP, UDP, TCP, IGMP

IP: routing cache hash table of 4096 buckets, 32Kbytes

TCP: Hash tables configured (established 32768 bind 65536)

NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.

VFS: Mounted root (ext2 filesystem) readonly.

NOT FREEING INITMEM


INIT: version 2.84 booting


Activating swap.

Adding Swap: 499216k swap-space (priority -1)

Checking root file system...

fsck 1.25 (20-Sep-2001)

/dev/sda3: clean, 3091/124928 files, 71844/499224 blocks

System time was Thu Mar  7 17:51:14 UTC 2002.

Setting the System Clock using the Hardware Clock as reference...

System Clock set. System local time is now Thu Mar  7 17:51:09 UTC 2002.

Checking all file systems...

fsck 1.25 (20-Sep-2001)

/dev/sdb1: clean, 17/260096 files, 149034/520187 blocks

/dev/sda4: clean, 10119/132480 files, 33296/264445 blocks

Setting kernel variables.

Loading the saved-state of the serial devices...

Cannot set serial info: Address already in use

/dev/ttyS0 at 0x0000 (irq = 90) is a 16550A

Cannot set serial info: Address already in use

/dev/ttyS1 at 0x0000 (irq = 121) is a 16550A

Mounting local filesystems...

/dev/sda4 on /usr type ext2 (rw)

/dev/sdb1 on /users type ext2 (rw)

Running 0dns-down to make sure resolv.conf is ok...done.

Cleaning: /etc/network/ifstate.

Setting up IP spoofing protection: rp_filter.

Configuring network interfaces: eth0: Transceiver problem.

done.

Starting portmap daemon: portmap.



Setting the System Clock using the Hardware Clock as reference...

System Clock set. Local time: Thu Mar  7 12:51:19 EST 2002



Cleaning: /tmp /var/lock /var/run.

Initializing random number generator... done.

Recovering nvi editor sessions... done.


INIT: Entering runlevel: 2


Starting system log daemon: syslogd.

Starting kernel log daemon: klogd.

Starting NFS common utilities: statd lockd.

Starting mouse interface server: gpm.

Starting internet superserver: inetd.

Starting printer spooler: lpd.

Not starting NFS kernel daemon: No exports.

Starting Samba daemons: nmbd smbd.

Starting deferred execution scheduler: atd.

Starting periodic command scheduler: cron.



Debian GNU/Linux 3.0 HP-D370 ttyS0



HP-D370 login: root

Password:

Last login: Thu Mar  7 10:28:13 2002 on ttyS0

Linux HP-D370 2.4.16-pa29 #1 Sat Dec 29 11:32:07 MST 2001 parisc unknown



Most of the programs included with the Debian GNU/Linux system are

freely redistributable; the exact distribution terms for each program

are described in the individual files in /usr/share/doc/*/copyright



Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent

permitted by applicable law.

HP-D370:~# ifconfig -a

eth0      Link encap:Ethernet  HWaddr 08:00:09:D2:0C:1E

           inet addr:192.168.42.20  Bcast:192.168.42.255  Mask:255.255.255.0

           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

           RX packets:0 errors:0 dropped:0 overruns:0 frame:0

           TX packets:21 errors:21 dropped:0 overruns:0 carrier:42

           collisions:0 txqueuelen:100

           RX bytes:0 (0.0 b)  TX bytes:2455 (2.3 KiB)

           Interrupt:87 Base address:0x7000 Memory:100c4000-0



lo        Link encap:Local Loopback

           inet addr:127.0.0.1  Mask:255.0.0.0

           UP LOOPBACK RUNNING  MTU:16436  Metric:1

           RX packets:8 errors:0 dropped:0 overruns:0 frame:0

           TX packets:8 errors:0 dropped:0 overruns:0 carrier:0

           collisions:0 txqueuelen:0

           RX bytes:560 (560.0 b)  TX bytes:560 (560.0 b)



HP-D370:~#





From - Thu Nov 08 21:21:59 2018
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Subject: Re: [parisc-linux] J3515 10/100 NIC
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Herb Radford wrote:
> Well, Grant, that doesn't show much. But here it is:

...
> Dino version 3.x (card mode) found at 0xf1008000
> Dino: Failed to allocate memory region

No - but it showed the problem.
ccio/dino don't seem to be ready to work on
K or D-class.

...
> Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
> PCI: Unable to reserve I/O region #1:80@f364d800 for device 00:01.0
> Trying to free nonexistent resource <f364d800-f364d87f>
> Trying to free nonexistent resource <43695000-4369507f>
...

Looks like we discover the PCI device anyway and the
resources get left in a garbage state.

grant



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] evms-0.9.1 && hppa (follow ...)
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On Thu, Mar 07, 2002 at 10:06:35AM -0700, Grant Grundler wrote:
> > Humm ... have you an idea why this problem did not appears for this i386 or
> > ppc (the two official supported till now)?
> 
> Dunno. Luck?
> Those arches may not be as sensitive to address space issues.

on x86, it (mostly) works to dereference a userspace address.  on PA it
does not.  On many other architectures, it does not.  Sloppy programming
on the part of the EVMS people.

-- 
Revolutions do not require corporate support.



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Subject: Re: [parisc-linux] J3515 10/100 NIC
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On Thu, Mar 07, 2002 at 02:03:05PM -0700, Grant Grundler wrote:
> > Dino version 3.x (card mode) found at 0xf1008000
> > Dino: Failed to allocate memory region
> 
> No - but it showed the problem.
> ccio/dino don't seem to be ready to work on
> K or D-class.

If you looked at the version he was running, it was some 2.4.16 release --
we didn't have any support for this card at that time.  Current 2.4.18 is
most of the way towards supporting that.  There's some D/K/R specific bits
to fill in -- see expand_ioc_area() in arch/parisc/kernel/ccio-dma.c.
It's fairly obvious (to me) what kind of thing needs to be done, but
without a machine of this nature of my own to test on, it's difficult
for me to get excited about it :-)

> ...
> > Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
> > PCI: Unable to reserve I/O region #1:80@f364d800 for device 00:01.0
> > Trying to free nonexistent resource <f364d800-f364d87f>
> > Trying to free nonexistent resource <43695000-4369507f>
> ...
> 
> Looks like we discover the PCI device anyway and the
> resources get left in a garbage state.

Um, yeah... this is my fault.  I can see the bug, let me try to fix it
(hopefully without breaking anything further...)

-- 
Revolutions do not require corporate support.



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From: Peter Weilbacher <weilbach@uni-sw.gwdg.de>
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Subject: [parisc-linux] traps in whiptail with apt-get upgrade
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Hi,

I updated the kernel on my 712/60 today using the 32bit precompiled
version 2.4.18-pa3 from the ftp-site. It seems to fix the /dev/lp0
problem for me.

But it still traps with command='whiptail' when I do an apt-get
upgrade. Below are the entries from /var/log/kern.log, before I
Ctrl-C'ed the apt-get.

Greetings,
	Peter.

P.S.: Is it possible to activate autofs or autofs4 in the
precompiled kernel? I hate to compile it myself on that slow 712/60
just for that...


Mar  8 01:29:44 hplinux kernel:
Mar  8 01:29:44 hplinux kernel: do_page_fault() pid=486 command='whiptail' type=15 address=0x0003302c
Mar  8 01:29:44 hplinux kernel: vm_start = 0x00025000, vm_end = 0x00033000
Mar  8 01:29:44 hplinux kernel:
Mar  8 01:29:44 hplinux kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Mar  8 01:29:44 hplinux kernel: PSW: 00000000000011001111111100001111 Not tainted
Mar  8 01:29:44 hplinux kernel: r00-03  00000000 402d8b68 402d8698 00032f18
Mar  8 01:29:44 hplinux kernel: r04-07  402d8690 402dd190 00000110 00000000
Mar  8 01:29:44 hplinux kernel: r08-11  faf00a50 402d8690 00000000 00000000
Mar  8 01:29:44 hplinux kernel: r12-15  00000000 faf00bcc ffffffff faf00bd0
Mar  8 01:29:44 hplinux kernel: r16-19  faf00bc8 000b9e9c faf00990 402dd190
Mar  8 01:29:44 hplinux kernel: r20-23  00000111 00033028 00000004 402d87a8
Mar  8 01:29:44 hplinux kernel: r24-27  00000200 00000110 00000024 000240b8
Mar  8 01:29:45 hplinux kernel: r28-31  00032f18 00032f18 faf00d80 01fffde1
Mar  8 01:29:45 hplinux kernel: sr0-3   00000000 00000005 00000000 00000005
Mar  8 01:29:45 hplinux kernel: sr4-7   00000005 00000005 00000005 00000005
Mar  8 01:29:45 hplinux kernel:
Mar  8 01:29:45 hplinux kernel: IASQ: 00000005 00000005 IAOQ: 4020e097 4020db5f
Mar  8 01:29:45 hplinux kernel:  IIR: 0ebf1288    ISR: 00000005  IOR: 0003302c
Mar  8 01:29:45 hplinux kernel:  CPU:        0   CR30: 14794000 CR31: 10390000
Mar  8 01:29:45 hplinux kernel:  ORIG_R28: 400c2588
Mar  8 01:29:59 hplinux kernel:
Mar  8 01:29:59 hplinux kernel: do_page_fault() pid=516 command='whiptail' type=15 address=0x00033f2c
Mar  8 01:29:59 hplinux kernel: vm_start = 0x00025000, vm_end = 0x00033000
Mar  8 01:29:59 hplinux kernel:
Mar  8 01:29:59 hplinux kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Mar  8 01:29:59 hplinux kernel: PSW: 00000000000011001111111100001111 Not tainted
Mar  8 01:29:59 hplinux kernel: r00-03  00000000 402d8b68 402d8698 00032f18
Mar  8 01:29:59 hplinux kernel: r04-07  402d8690 402dd190 00001010 00000002
Mar  8 01:29:59 hplinux kernel: r08-11  faf00b08 402d8690 00025380 00000000
Mar  8 01:29:59 hplinux kernel: r12-15  faf01090 00000002 ffffffff 00000000
Mar  8 01:29:59 hplinux kernel: r16-19  00000000 000b9e9c faf00990 402dd190
Mar  8 01:29:59 hplinux kernel: r20-23  00001011 00033f28 00000122 00000016
Mar  8 01:29:59 hplinux kernel: r24-27  02000000 00001010 00000064 000240b8
Mar  8 01:29:59 hplinux kernel: r28-31  00032f18 00032f18 faf01200 01ffed11
Mar  8 01:29:59 hplinux kernel: sr0-3   00000000 00000001 00000000 00000001
Mar  8 01:29:59 hplinux kernel: sr4-7   00000001 00000001 00000001 00000001
Mar  8 01:29:59 hplinux kernel:
Mar  8 01:30:00 hplinux kernel: IASQ: 00000001 00000001 IAOQ: 4020e097 4020db5f
Mar  8 01:30:00 hplinux kernel:  IIR: 0ebf1288    ISR: 00000001  IOR: 00033f2c
Mar  8 01:30:00 hplinux kernel:  CPU:        0   CR30: 1409c000 CR31: 10390000
Mar  8 01:30:00 hplinux kernel:  ORIG_R28: 402d5da4
Mar  8 01:30:02 hplinux kernel:
Mar  8 01:30:02 hplinux kernel: do_page_fault() pid=523 command='whiptail' type=15 address=0x00033eec
Mar  8 01:30:02 hplinux kernel: vm_start = 0x00025000, vm_end = 0x00033000
Mar  8 01:30:02 hplinux kernel:
Mar  8 01:30:02 hplinux kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Mar  8 01:30:02 hplinux kernel: PSW: 00000000000011001111111100001111 Not tainted
Mar  8 01:30:02 hplinux kernel: r00-03  00000000 402d8b68 402d8698 00032ed8
Mar  8 01:30:02 hplinux kernel: r04-07  402d8690 402dd190 00001010 00000002
Mar  8 01:30:02 hplinux kernel: r08-11  faf00bc8 402d8690 00025380 00000000
Mar  8 01:30:02 hplinux kernel: r12-15  faf01150 00000002 ffffffff 00000000
Mar  8 01:30:02 hplinux kernel: r16-19  00000000 000b9e9c faf00990 402dd190
Mar  8 01:30:02 hplinux kernel: r20-23  00001011 00033ee8 00000502 00000020
Mar  8 01:30:02 hplinux kernel: r24-27  02000000 00001010 00000064 000240b8
Mar  8 01:30:02 hplinux kernel: r28-31  00032ed8 00032ed8 faf012c0 01ffecc1
Mar  8 01:30:02 hplinux kernel: sr0-3   00000000 00000001 00000000 00000001
Mar  8 01:30:02 hplinux kernel: sr4-7   00000001 00000001 00000001 00000001
Mar  8 01:30:02 hplinux kernel:
Mar  8 01:30:03 hplinux kernel: IASQ: 00000001 00000001 IAOQ: 4020e097 4020db5f
Mar  8 01:30:03 hplinux kernel:  IIR: 0ebf1288    ISR: 00000001  IOR: 00033eec
Mar  8 01:30:03 hplinux kernel:  CPU:        0   CR30: 1409c000 CR31: 10390000
Mar  8 01:30:03 hplinux kernel:  ORIG_R28: 402d5da4




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Hi all,

	I'm considering buying some rp2430s (at last, PA-RISC at the
Right Price, or so it seems), and I want to run Linux on them (they're
just a 'compute cluster')

	I'm wondering: Would I be able to use non-HP PCI cards in these
systems, if they're supported under Linux? In particular, I'm wondering
about 3ware IDE RAID cards (these work in (at least) alpha and x86
linux) and Intel gigabit ethernet NICs (based on the 82554 chip).

	And (no laughter, please) what's the maximum swap partition size
parisc linux supports? Can parisc linux swap over NFS?

	Sorry for the oddball questions,

	Duraid






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> Can parisc linux swap over NFS?

no, swapping over nfs does not work, however, using network block device
should work, and is much faster than nfs.

do do that you need to enable network block device in the client's
kernel, and you need two special userspace tools (debian packages
nbd-server and nbd-client). the nbd-server in debian is broken you
should get the latest upstream version and compile it yourself.

good luck

andi





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On Fri, Mar 08, 2002 at 02:51:03PM +1100, Duraid Madina wrote:
> 	I'm wondering: Would I be able to use non-HP PCI cards in these
> systems, if they're supported under Linux? In particular, I'm wondering
> about 3ware IDE RAID cards (these work in (at least) alpha and x86
> linux) and Intel gigabit ethernet NICs (based on the 82554 chip).

*puts kernel hacker's hat on*
Sure!  All that stuff should work and if it doesn't it can be fixed.

*puts HP employee hat on*
Well, it might invalidate your warranty to put non-HP certified cards
in your system.

> 	And (no laughter, please) what's the maximum swap partition size
> parisc linux supports? Can parisc linux swap over NFS?

Forget about swapping over NFS.  It's prone to deadlock under
stress.  I think we support 2GB/file and up to 8 files, but I may be
underestimating... John would know.

-- 
Revolutions do not require corporate support.



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> > 	And (no laughter, please) what's the maximum swap partition size
> > parisc linux supports? Can parisc linux swap over NFS?
> 
> Forget about swapping over NFS.  It's prone to deadlock under
> stress.  I think we support 2GB/file and up to 8 files, but I may be
> underestimating... John would know.

NFS swapping probably isnt the best of ideas - if you ensure your atomic
memory pool is big enough you can make it work though. Nbd will also work
subject to the same kind of constraints. There are some patches around to
make nfs/nbd swap reliable by putting some hacks into the network code



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>>>>> "Duraid" == Duraid Madina <duraid@fl.net.au> writes:

Duraid> In particular, I'm wondering about 3ware IDE RAID cards (these
Duraid> work in (at least) alpha and x86 linux)

I don't think there are high hopes for the 3ware card.  At least not
unless you preconfigure it on a PC.

Alpha happens to work because its firmware includes a simple x86
simulator that executes the BIOS code on the card.  That way you can
configure your disk setup, etc.

We don't have similar functionality on PA-RISC.  So you are limited
what can be done from within Linux. 

Unfortunately the 3ware management utility is 386 binary-only.
I.e. you can't configure the card once you get Linux up and running
either.

-- 
Martin K. Petersen      Cereal Bowl Engineer, Linuxcare, Inc.
http://mkp.net/         SGI XFS, Linux/PA-RISC, GNOME



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> Alpha happens to work because its firmware includes a simple x86
> simulator that executes the BIOS code on the card.  That way you can
> configure your disk setup, etc.

There is btw a passable x86 emulator for free in the XFree86 code that
is used to do things like boot video cards.

> Unfortunately the 3ware management utility is 386 binary-only.
> I.e. you can't configure the card once you get Linux up and running
> either.

Bochs 8)



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>>>>> "Alan" == Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

>> Alpha happens to work because its firmware includes a simple x86
>> simulator that executes the BIOS code on the card.  That way you
>> can configure your disk setup, etc.

Alan> There is btw a passable x86 emulator for free in the XFree86
Alan> code that is used to do things like boot video cards.

Yep.  It's going to take a fairly big hammer to beat libint10 into
submission, though.  Interactively mocking with disk configuration and
whatnot is a bit more complex than kicking off some init fluff on a
video card.


>> Unfortunately the 3ware management utility is 386 binary-only.
>> I.e. you can't configure the card once you get Linux up and running
>> either.

Alan> Bochs 8)

It would actually be useful to hack it so we had a generic way of
running x86 card ROMs on non-{PC,Alpha,Itanium} architectures.

-- 
Martin K. Petersen      Cereal Bowl Engineer, Linuxcare, Inc.
http://mkp.net/         SGI XFS, Linux/PA-RISC, GNOME



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Erm.  Whare are you going to put the disks for the 3ware?
	Nick

On Fri, 8 Mar 2002, Duraid Madina wrote:

> Hi all,
> 
> 	I'm considering buying some rp2430s (at last, PA-RISC at the
> Right Price, or so it seems), and I want to run Linux on them (they're
> just a 'compute cluster')
> 
> 	I'm wondering: Would I be able to use non-HP PCI cards in these
> systems, if they're supported under Linux? In particular, I'm wondering
> about 3ware IDE RAID cards (these work in (at least) alpha and x86
> linux) and Intel gigabit ethernet NICs (based on the 82554 chip).
> 
> 	And (no laughter, please) what's the maximum swap partition size
> parisc linux supports? Can parisc linux swap over NFS?
> 
> 	Sorry for the oddball questions,
> 
> 	Duraid
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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> > Alpha happens to work because its firmware includes a simple x86
> > simulator that executes the BIOS code on the card.  That way you can
> > configure your disk setup, etc.
> 
> There is btw a passable x86 emulator for free in the XFree86 code that
> is used to do things like boot video cards.
> 
> > Unfortunately the 3ware management utility is 386 binary-only.
> > I.e. you can't configure the card once you get Linux up and running
> > either.
> 
> Bochs 8)
> 

out of sheer curiosity, i installed bochs on my 712/60

running the linux demo that comes with it, i got a bogoMIPS rating of 0.82 

hehe :)

James S






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Matthew wrote:
> *puts kernel hacker's hat on*
> Sure!  All that stuff should work and if it doesn't it can be fixed.

Sweet.
 
> *puts HP employee hat on*
> Well, it might invalidate your warranty to put non-HP 
> certified cards in your system.

Grr, someone should stop HP from calling them PCI slots since they're
only rated to 20W/slot anyway ;) (which is out of spec, iirc)
 
> > 	And (no laughter, please) what's the maximum swap 
> partition size 
> > parisc linux supports? Can parisc linux swap over NFS?
> 
> Forget about swapping over NFS.  It's prone to deadlock under 
> stress.  I think we support 2GB/file and up to 8 files, but I 
> may be underestimating... John would know.

Damn! I was hoping that I could have something like 200GB of swap or so.
Would it be difficult to add support for more than 8 swap files?

	Thanks,

	Duraid





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Martin wrote:
> I don't think there are high hopes for the 3ware card.  At 
> least not unless you preconfigure it on a PC.

For sure.
 
> Alpha happens to work because its firmware includes a simple 
> x86 simulator that executes the BIOS code on the card.  That 
> way you can configure your disk setup, etc.

Oops, I think I was misleading when I said 3ware 'worked' in Alpha - 3dm
doesn't (of course) and yes, you need to do all array administration
stuff out of the BIOS on a PC.

> We don't have similar functionality on PA-RISC.  So you are 
> limited what can be done from within Linux. 

Well, so long as it can find the array and read/write, I'm set.
 
> Unfortunately the 3ware management utility is 386 
> binary-only. I.e. you can't configure the card once you get 
> Linux up and running either.

I have to admit, I find hardly any need for that tool even in x86 land
;)

	Duraid




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> Erm.  Whare are you going to put the disks for the 3ware?

On top of the box,
unshielded disks gather dust.
I hear them rattle.

	Duraid




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Hey, just heard about the new HP RP2430:
http://www.hp.com/products1/servers/rackoptimized/rp2400/specifications.html 

Part number is A6889A:
	650 Mhz PA-8700 with 2.25 MB cache
	2 64 bit/66 Mhz
	128 MB ram 1.9 GB/sec, 2GB max (claimed peak)
	2U
	Ultra scsi and Ultra2 scsi
	100baseT and 10BaseT (2 ethernet I believe)
	2 serial (inc serial console)

$1095!!!!!!

It has no disk, but HP says they will ship it without.  The disk prices
are unfortunately insane.

-- 
Bill Broadley
Mathematics/Institute of Theoretical Dynamics
UC Davis



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> 	2 64 bit/66 Mhz
> 	128 MB ram 1.9 GB/sec, 2GB max (claimed peak)
> 	2U
> 	Ultra scsi and Ultra2 scsi
> 	100baseT and 10BaseT (2 ethernet I believe)
> 	2 serial (inc serial console)
> 
> It has no disk, but HP says they will ship it without.  The disk prices
> are unfortunately insane.

Time to buy a PCI ide controller and figure out how to thread the cables 8)



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Re:

> Hey, just heard about the new HP RP2430:
> http://www.hp.com/products1/servers/rackoptimized/rp2400/specifications.html 
 
> $1095!!!!!!

Where did you find a price quote?  I followed HP's poor web pages with
no success.  Going to "quick quote" from the above page takes you to a page
that takes you to a page (via "create a new system") that knows about 
various rpxxxx models, but not the rp24xx line!

thanks,

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com



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>>>>> "Stan" == Stan Sieler <sieler@allegro.com> writes:

Stan> Re:
>> Hey, just heard about the new HP RP2430:
>> http://www.hp.com/products1/servers/rackoptimized/rp2400/specifications.html
 
>> $1095!!!!!!

Stan> Where did you find a price quote?  I followed HP's poor web
Stan> pages with no success.  Going to "quick quote" from the above
Stan> page takes you to a page that takes you to a page (via "create a
Stan> new system") that knows about various rpxxxx models, but not the
Stan> rp24xx line!

Follow the link for A-class...

-- 
Martin K. Petersen      Cereal Bowl Engineer, Linuxcare, Inc.
http://mkp.net/         SGI XFS, Linux/PA-RISC, GNOME



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>>>>> "Bill" == Bill Broadley <bill@math.ucdavis.edu> writes:

Bill> Hey, just heard about the new HP RP2430:
Bill> http://www.hp.com/products1/servers/rackoptimized/rp2400/specifications.html

Bill> Part number is A6889A:
Bill> 	650 Mhz PA-8700 with 2.25 MB cache 2 64 bit/66 Mhz 128 MB ram
Bill> 	1.9 GB/sec, 2GB max (claimed peak) 2U Ultra scsi and Ultra2
Bill> 	scsi 100baseT and 10BaseT (2 ethernet I believe) 2 serial (inc
Bill> 	serial console)

Bill> $1095!!!!!!

Bill> It has no disk, but HP says they will ship it without.  The disk
Bill> prices are unfortunately insane.

I don't know if my A500 was special, but it came with a disk carrier
in the empty storage bay.  And it uses standard SCA drives.  So I
added an extra drive.

If that's the case on the new machines too, Bob's your uncle...

-- 
Martin K. Petersen      Cereal Bowl Engineer, Linuxcare, Inc.
http://mkp.net/         SGI XFS, Linux/PA-RISC, GNOME



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Re:

> >> Hey, just heard about the new HP RP2430:
> >> http://www.hp.com/products1/servers/rackoptimized/rp2400/specifications.html
>  
> Stan> Where did you find a price quote?  I followed HP's poor web
...
> Follow the link for A-class...

Silly me...thinking it would be with the other "rp..." links :)

thanks!

 
HP: always on (fire)

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com



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Re:

> >> http://www.hp.com/products1/servers/rackoptimized/rp2400/specifications.html
>  
> >> $1095!!!!!!
> 
> Follow the link for A-class...

The best I could do is get it down to $1895 and "error" in the price :)

Oh well...  

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com



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Click on console, and delete the by default HP3000 serial terminal or
whatever it's called.

Be careful to avoid the default Rack and UPS on the first page.

My lowest price I've quoted through quickquote is $USA $1,170, but that's
list apparently street price lower.   Add a $150-$200 IBM Ultrastar 80
pin/sca and your set.  Assuming linux works well and supports the serial,
network, and scsi.

-- 
Bill Broadley
Mathematics/Institute of Theoretical Dynamics
UC Davis



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> Forget about swapping over NFS.  It's prone to deadlock under
> stress.  I think we support 2GB/file and up to 8 files, but I may be
> underestimating... John would know.

For a 32 bit kernel:
    128 Gb per file, up to 32 files for a total of 4 Tb.

However, there are two limitations that you have to work around to get that:

    1) mkswap was never modified for parisc, so I believe it sets a limit
    of 2 Gb.  I once hacked a version of it, but I never got around to
    submitting the change, because I had some questions about some
    comments in the code that I believed were out of date, but wasn't sure,
    put it on the backburner, and dropped the ball.

    Anyway, I believe the change was simple, and I tested at least a 16 Gb
    swap partition at one time.

    2) Although we can support 32 swap files, Linux currently has a limit
    of 8. However, I think the only change to allow 32 is to change
    MAX_SWAPFILES in include/linux/swap.h to 32. I don't think there are
    any other intrinsic limitations there.

    3) Note that a swap map is allocated for each swap file.  The swap map
    takes 2 bytes for each page of swap.  This swap map is vmalloc'd, so
    that places another limitation on the total swap size.  The vmalloc
    address space starts after the end of physical memory, so the more
    physical memory you add, the LESS swap space you can have.  But that
    isn't likely to become an issue until you need more than a terabyte of
    swap space.

For a 64 bit kernel the size of a swap partition can be even larger than
128 Gb.  But I really can't say how much larger, because there are a bunch
of variables that get involved and I don't have the time to try to muddle
through them all. Some of those variables:

    1) Disk size limits / Disk addressing limits
    2) swap partition format limits
    3) physical memory limits (limits size of all swap maps)
    4) vmalloc address space limits (limits size of all swap maps)

Note that I didn't mention the SWP_OFFSET limit, which is the main limitation
for the 32 bit kernel. For a 32 bit kernel we dedicate 25 bits to swap
offset, which gives us the 128 Gb limit (2^25 x 4K page size). For a 64
bit kernel we have 57 bits, so that is not the limiting factor. One of
the above will set the limit.

John

P.S. Note that we don't support 64 bit user space processes yet, so you
would probably find it difficult to consume extreme amounts of swap
space, since each process can only address ~4Gb of memory.



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John wrote:

>P.S. Note that we don't support 64 bit user space processes yet, so you
>would probably find it difficult to consume extreme amounts of swap
>space, since each process can only address ~4Gb of memory.	

(!!!)

*ponders tearing up his code into multiple processes*

The 'yet' above gives me hope; will 64 bit user space processes be
supported anytime soon? Being able to malloc(1<<36) would be nice!

	Duraid





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> The 'yet' above gives me hope; will 64 bit user space processes be
> supported anytime soon? Being able to malloc(1<<36) would be nice!

I sure hope not.... there is a lot of work involved to bring up
toolchains and all the applications to support two different userlands.
We still have a lot of work to do just to stablize 32-bit userspace.
Check the list archives, this has been discussed before, and once fairly
recently.

This is not to say it couldn't be done of course. This is GNU/Linux, you
have all the source, go nuts.. :-)

But now you have me curious, what app are you writing that needs >4G of
address space?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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> > The 'yet' above gives me hope; will 64 bit user space processes be 
> > supported anytime soon? Being able to malloc(1<<36) would be nice!
> 
> I sure hope not.... there is a lot of work involved to bring 
> up toolchains and all the applications to support two 
> different userlands. We still have a lot of work to do just 
> to stablize 32-bit userspace. Check the list archives, this 
> has been discussed before, and once fairly recently.

I had a bit of a peek around the archives, wow, I guess hppa64 isn't the
most 'comfortable' place for a g++ developer just now.

> This is not to say it couldn't be done of course. This is 
> GNU/Linux, you have all the source, go nuts.. :-)

Project deadline soon :( must.. find.. cheap.. 64 bit machine
 
> But now you have me curious, what app are you writing that 
> needs >4G of address space?

A computational physics code. Ideally I would run it in 100s of GB of
RAM. About two months of pain went into making it work (reasonably
efficiently, in theory at least) in 100s of GB of swap.

Now you have *me* curious; I don't mean to be an ignorant asshole, but
what's the point of hppa64 if you *don't* support >4G address space?

*crying* does HP-UX support >4G address space? *finds wallet* :(
Hmm, probably have to shell out more $$$ for the HP compilers too :\

	Duraid




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On Sat, Mar 09, 2002 at 02:00:31PM +1100, Duraid Madina wrote:
> A computational physics code. Ideally I would run it in 100s of GB of
> RAM. About two months of pain went into making it work (reasonably
> efficiently, in theory at least) in 100s of GB of swap.

Hmm.  You would probably be best off making it work by mmaping chunks
of a data file at a time.

> Now you have *me* curious; I don't mean to be an ignorant asshole, but
> what's the point of hppa64 if you *don't* support >4G address space?

Supporting >4GB of physical ram, which can be shared among multiple
processes, each being <4GB in size :-)

> *crying* does HP-UX support >4G address space? *finds wallet* :(
> Hmm, probably have to shell out more $$$ for the HP compilers too :\

gcc works fine on hpux...

-- 
Revolutions do not require corporate support.



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Subject: RE: [parisc-linux] Swap space limitions for Linux on parisc
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> Hmm.  You would probably be best off making it work by 
> mmaping chunks of a data file at a time.

Doing "all that mmap stuff" is what I hoped I could avoid by throwing
some $$$$ at a 64-bit machine, and using swap "gently". So HP's new,
affordable PA-8700 machines look(ed) terrific. 

> Supporting >4GB of physical ram, which can be shared among 
> multiple processes, each being <4GB in size :-)

I know, I know, just having a whinge ;)
 
> gcc works fine on hpux...

Hmm.

	Duraid




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Subject: RE: [parisc-linux] Swap space limitions for Linux on parisc
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>
> > > The 'yet' above gives me hope; will 64 bit user space processes be
> > > supported anytime soon? Being able to malloc(1<<36) would be nice!
> >
> > I sure hope not.... there is a lot of work involved to bring
> > up toolchains and all the applications to support two
> > different userlands. We still have a lot of work to do just
> > to stablize 32-bit userspace. Check the list archives, this
> > has been discussed before, and once fairly recently.
>
> I had a bit of a peek around the archives, wow, I guess hppa64 isn't the
> most 'comfortable' place for a g++ developer just now.

Well, basic gcc, binutils already work because we need that to build a
64 bit kernel. g++ is another story (which I don't know anything about).
The biggest missing piece is support for 64 bit shared libraries. I'm
not even sure there is a complete design for how that is going to work.

Then of course, a 64 bit version of glibc has to be built. Since glibc
has already been ported to other 64 bit architectures, and since it has
been ported to 32 bit parisc linux, there may not be that much work here,
but the code size is so huge, it probably is not trivial.

Finally, there is some more kernel work to be done, primarily in VM
support and syscalls.  I plan to do this work some day, but haven't been
highly motivated since there hasn't been much demand yet.

> > This is not to say it couldn't be done of course. This is
> > GNU/Linux, you have all the source, go nuts.. :-)
>
> Project deadline soon :( must.. find.. cheap.. 64 bit machine
>
> > But now you have me curious, what app are you writing that
> > needs >4G of address space?
>
> A computational physics code. Ideally I would run it in 100s of GB of
> RAM. About two months of pain went into making it work (reasonably
> efficiently, in theory at least) in 100s of GB of swap.
>
> Now you have *me* curious; I don't mean to be an ignorant asshole, but
> what's the point of hppa64 if you *don't* support >4G address space?
>
> *crying* does HP-UX support >4G address space? *finds wallet* :(
> Hmm, probably have to shell out more $$$ for the HP compilers too :\
>
>         Duraid

Yes, HP-UX does support >4Gb address space. And yes, you will probably
have to pay extra for the compilers. Another problem is that HP-UX
might not install without supported CD-ROM, disks, etc. From the
ordering page it wasn't clear if you could order HP-UX media without
getting a CD-ROM (which we charge $520 for. Such a bargain!).

So, another option might be a statically linked 64 bit gcc "compute
engine" app that used only a minimum of direct syscalls (no glibc) to
communicate with a 32 bit front end app.  If the compute part of your code
is heavily g++ dependent, this might not be feasible.  This would still
require the kernel work mentioned above to be done.

John Marvin
jsm@fc.hp.com



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] 'foreign' PCI cards in an rp2430
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"Duraid Madina" wrote:
> ...and Intel gigabit ethernet NICs (based on the 82554 chip).

I've tested the e1000 (4.0.24-k1, iirc) driver on HP's "2cd generation
Intel (r) Itanium (tm)" systems and it basically works. Based on
this, I would expect this e1000 driver to work on A500-like systems.
(ie rp24xx boxes). Someday, if i get the itch, I'll plug one into
my a500 and try it.

and later:
> A computational physics code. Ideally I would run it in 100s of GB of
> RAM. About two months of pain went into making it work (reasonably
> efficiently, in theory at least) in 100s of GB of swap.

The approach seems really odd - you are looking at 64-bit userspace so
you can *swap* large amounts of virtual memory in/out. If you expected
to be IO bound, tuning the app to know more about IO (instead of
swapping) makes more sense.

Have you tried begging, trading, or buying some cycles on a Superdome
with some 100GBs of RAM instead of waiting for weeks to see your jobs
run to completion?

my $0.02,
grant




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Grant wrote:
> and later:
> > About two months of pain went into making it work (reasonably 
> > efficiently, in theory at least) in 100s of GB of swap.
> 
> The approach seems really odd - you are looking at 64-bit 
> userspace so you can *swap* large amounts of virtual memory 
> in/out. If you expected to be IO bound, tuning the app to 
> know more about IO (instead of swapping) makes more sense.

Normally, yes. In my case, not really. To cut a long story short,
because C++ has poor intrinsic support for reflection, even making my
app *do* IO is non-trivial. E.g. my program instantiates millions of
different objects (which interact in various interesting ways). The cost
of serializing/deserializing these objects to store them in a light
database like berkeleyDB, or simply as files is great enough that the
job becomes CPU bound, and not I/O bound. Being CPU bound is not where I
want to be, when I'm seeing only 2mb/sec of I/O ;)

What's even worse is that I'm using some truly unwiedly third party
class libraries (Hi Richard! ;) which don't provide serialization, so
again, instantiating 'plain old objects' seems to be the path of least
resistance, in my case.

What I was hoping to do is take an athlon box with fast raid and gigabit
ethernet, and buy one of those nice new rp2430s, having it swap over
ethernet. It seems that I can do this with HP-UX, though perhaps not
with G++. I would prefer to run Linux on the rp2430 though, since then I
could use a cheap Intel gigabit NIC (instead of paying $$$ for an HP
one) or better yet, stick my 3ware RAID card in the rp2430, and do away
with the network altogether. That I *can't* do with HP-UX, so...

> Have you tried begging, trading, or buying some cycles on a 
> Superdome with some 100GBs of RAM instead of waiting for 
> weeks to see your jobs run to completion?

Really, my code should be pretty efficient (it takes weeks to run anyway
;) with the setup I've described above, but the killer is: I'm a
University student ("I knew it!" I hear you all say ;) and as such, my
code is perpetually in the "hmm, I wonder what'd happen if.." state. So
"some cycles" would become "some more cycles" faster than you could say
"where's all my RAM gone?!"

	Duraid

P.S. Am I really the only sicko who's wanted a 64-bit machine just so
they can abuse virtual memory? Surely not... ;)

P.P.S. It's true, I do love the smell, the feel, the sound of striped,
thrashing, consumer-level hard drives. C'mon guys, help this sicko make
his dream come true (:






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> 
> > Have you tried begging, trading, or buying some cycles on a 
> > Superdome with some 100GBs of RAM instead of waiting for 
> > weeks to see your jobs run to completion?
> 
> Really, my code should be pretty efficient (it takes weeks to run anyway
> ;) with the setup I've described above, but the killer is: I'm a
> University student ("I knew it!" I hear you all say ;) and as such, my
> code is perpetually in the "hmm, I wonder what'd happen if.." state. So
> "some cycles" would become "some more cycles" faster than you could say
> "where's all my RAM gone?!"
> 
> 	Duraid
>

This is a very similar problem that we had when calculating prime
alternating knots[1]. Essentially what was done was to use MPI[2] 
and a fast network connection, such that you could have _other_ 
computers holding data in RAM/SWAP.

Parallelize parallelize parallelize.

It's really easy to learn MPI and it's great for those big problems
that you may not be able to do with a 64-bit box :)

a. Get a 100MBit/1GBit switch and NIC's.
b. Get some more boxes (borrow/lie/cheat/steal)
c. Tie them together.

This is what I do for a hobby :) ... and yes I'm a student aswell.
It's nice to see that people like Bell and Nortel are willing to 
donate expensive gear for projects like yours or mine[3] :)

c. 

[1] http://baldric.uwo.ca/article.php3?section=baldric&article=knots
[2] http://www-unix.mcs.anl.gov/mpi/mpich/
[2] http://www.lam-mpi.org/
[3] http://www.baldric.uwo.ca/~carlos/pdisplay.html



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Just thought I'd post a quick note about some of the things happening
recently:

With many thanks to Dave Anglin and the investigation work by Carlos
O'Donell, we've finally fixed the bug in gcc-3.0 that affected passing
floating point arguments in indirect calls.

The new compilers are now in the Debian archive, and we are slowly
starting to rebuild some of the affected packages. (gs and python2.1
were the ones I knew about offhand, and they are now in the incoming
queue). If you know of any other Debian packages you use that might be
affected by this bug, let us know and we'll rebuild it.

There are still some known problems with the compilers, most notably the
problems with fixups that aren't able to reach their targets and thus 
requiring compilation with -ffunction-section. I have one patch from
Dave that fixes this in some cases, but as I understand it the general
problem is more involved and might not get fixed till post-woody.

gdb also seems to be rather broken on hppa at the moment. Single
stepping doesn't always (doesn't usually) work, and there's a problem 
with recognizing core files. If anyone has time to look into these 
and submit patches, that'll be great!

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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> gdb also seems to be rather broken on hppa at the moment. Single
> stepping doesn't always (doesn't usually) work, and there's a problem 
> with recognizing core files. If anyone has time to look into these 
> and submit patches, that'll be great!

I haven't noticed any single stepping issues with the gdb that I built.
Stepping into functions doesn't work but single stepping does.  I have
made some changes to the dwarf2 frame note code in gcc and a working dwarf2
unwind mechanism is real close now.  I'm down to 4 fails in the g++ testsuite.

There are issues with loading symbols from shared libs.  They don't
load automatically even though they should.  You can't set new breakpoints
while a program is executing.  You have to run it again.  You can't
set breakpoints in shared libraries.

Also, can't print a function result.  This problem is probably related
to the stepping into function problem.

Info reg r3 prints the value of r3 saved in the frame and not the current
value in r3.  Not sure what happens if r3 is not saved in the frame.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Hi,

could someone send me his source.list entries
for security updates?

thanx and cya,
Tilo

|[ Tilo Jandt, K=F6rnerstra=DFe 8, D-09306 Rochlitz         ]|
|[ mailto:tilo@jandt-online.net ]  [ ICQ: 73832493              ]|
|[ Phone: +49 179 5333 255   ]  [ Fax: +49 3737 771478  ]|





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"Duraid Madina" wrote:
> Normally, yes. In my case, not really. To cut a long story short,
> because C++ has poor intrinsic support for reflection, even making my
> app *do* IO is non-trivial. E.g. my program instantiates millions of
> different objects (which interact in various interesting ways). The cost
> of serializing/deserializing these objects to store them in a light
> database like berkeleyDB, or simply as files is great enough that the
> job becomes CPU bound, and not I/O bound. Being CPU bound is not where I
> want to be, when I'm seeing only 2mb/sec of I/O ;)

FWIW, you should expect to see 30-40MB/s to single disk on rp2430.
More with more disks/channels.

> I would prefer to run Linux on the rp2430 though, since then I
> could use a cheap Intel gigabit NIC (instead of paying $$$ for an HP

Well, 2.4 has no e1000 driver (yet) much less one that is known to work
on hppa. I *think* the e1000 driver I "leveraged" from 2.5 release for
HP ia64 machine should also work for hppa. But that's just an educated
guess. FWIW, bcm5700 driver needed some patches to work on HP's
ia64 box and I'm looking forward to testing tg3 patch soon.

And Intel's change in strategy may not work so well in pratice.
So I'd stick with a tigon (acenic or bcm5700) board for the next
3 monthes.

> one) or better yet, stick my 3ware RAID card in the rp2430, and do away
> with the network altogether. That I *can't* do with HP-UX, so...

I've never liked RAID controllers. too complex and failure prone.
If you have spare CPU cycles, putting in simple SCSI controllers will
give you at least 4 x 80MB/s and it's easy to connect 40 or so 9 (or 18GB)
SCSI drives.  This is not shiny, new high tech stuff (eg u160 and 15KRPM).
but I expect it to be faster than any IDE solution (I could be wrong) and
re-usable for other computer science projects (read database or other
mutlithreaded IO) when you are done.  <RANT>And you don't need any
stinking x86 binaries-only software to manage the setup.</RANT>

But I'm not one to stop others from picking solutions that work
for them.

grant



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Thomas Bogendoerfer wrote:
> after sleeping over the problem, I believe we were short just one bit.
> We extracted 32 bits from the PTE. The lower 5 bits are zeroed and will
> be the 4 size bits and the one 0 bit in the TLB. That leaves 27 bits for
> the physical page number. Adding the 12 offset bits for 4k pages gives us
> just 39 bits, but we need 40. So instead of the change 32 -> 52 a
> change from 32 -> 33 should do the same. On the other side using all
> bits shouldn't matter and we are prepared for 44 bit and more.

ok. that all make sense now.
It made more sense when I read about extru and idtlbt in the 
PA 2.0 Arch book.

> BTW.
> isn't our current PDC space expansion wrong for "odd" sized address
> spaces ? It should work for 48 and 56, but not for anything else.
> Or do I miss something ?

I have no clue. jsm or willy know?

> I will have a J6700 at Cebit to play with, but I don't think I'll
> get spare time in the next couple of days.

Done! See ftp://ftp.p-l.o/patches/entry.S-diff

The 32-bit kernel with FB is working with 4 instances of the following
change to entry.S (all immediately preceed an idtlbt instruction):
-       extrd,u         pte,56,25,pte
+       extrd,s         pte,56,25,pte   /* bit 31:8 >> 8  */
+       depdi           0,3,4,pte       /* page_size = 4k (in case signed) */

CAVEAT: This is better than the brokeness we had before.
But it doesn't properly handle 0xf0xxxxxx addresses.
Those need to be "f-extended" with 0xf0f0f0... instead of all 1's.

> yes,  with your last ioctl32 changes. I need to recheck my first entry.S
> hack for the narrow mode pa2.0 tlb handler. I think my assembler code
> just sucks and setting up the tlbs the same way as for wide mode,
> should get us X with 32-bit kernels, too.

Done. patch on ftp.p-l.o/patches/entry.S-diff.
Can someone with VM cluefulness review this for me?

It seems to be working on my c3k with Vis-EG/PCI now though...wohoo! :^)

thanks,
grant



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Quoth Tilo Jandt:
> could someone send me his source.list entries
> for security updates?

Hi Tilo,

Due to the volatile nature of the 'unstable' pool and the delayed update
process of the 'testing' pool, I believe the Debian security updates are
only done for the 'stable' pool.  If there is a security fix for a
testing or unstable package it will generally just appear in your next
apt-get upgrade.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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In looking at the the failure of the g++.brendan/new3.C, I have observed
what appears to be a problem with the dynamic loader.  The function
_Znwj appears as a global symbol in the main program and in
libstdc++.so.4.0.0.  The version in the main program should be selected
in preference to the one in the shared library.  However, the dynamic
loader actually uses the version in the shared library causing the
test to fail.  The program works ok with static linkage.

It looks like the symbol search procedure used in glibc needs some work.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: [parisc-linux] new vmlinux!!!
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I have 3 partitions on primary disk
   Device Boot    Start       End    Blocks   Id  System
/dev/sda1             1        95     97264   f0  Linux/PA-RISC boot
/dev/sda2            96       339    249856   82  Linux swap
/dev/sda3           340      8683   8544256   83  Linux

I am doing some modifications to the code and trying to boot with a new
linux.
I placed my vmlinux in /boot, but the palo doesn't seems to recognize my
kernel.

Any suggestions.

Guru





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From: Tilo Jandt <tilo@jandt-online.net>
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Hi,

today I found out that Mozilla and Galeon are now availlable for Debian=
 HPPA.
So I downloaded and installed these Packages but both programms hang up=20
with a Segmentation Fault.

Mozilla before there is something to see and Galeon after you can see the=20
Main Window before showing the start page.

Does anyone have the same problems?

I have a HP 712/60.
I know Mozilla will not work very good on these machine but I wan't to try=
=20
it because there are no real browser alternatives.
Lynx is just textbased and dillo is to simple.

cya,
Tilo

|[ Tilo Jandt, K=F6rnerstra=DFe 8, D-09306 Rochlitz         ]|
|[ mailto:tilo@jandt-online.net ]  [ ICQ: 73832493              ]|
|[ Phone: +49 179 5333 255   ]  [ Fax: +49 3737 771478  ]|





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>today I found out that Mozilla and Galeon are now availlable for Debian
HPPA.
>So I downloaded and installed these Packages but both programms hang up
>with a Segmentation Fault.
>
>Mozilla before there is something to see and Galeon after you can see the
>Main Window before showing the start page.
>
>Does anyone have the same problems?
>
>I have a HP 712/60.
>I know Mozilla will not work very good on these machine but I wan't to try
>it because there are no real browser alternatives.
>Lynx is just textbased and dillo is to simple.

exactly the same problems on the same machine type here, but i think that
these problems will mostly be ironed out the more mature the distro becomes

btw - the kde browser konqueror works, but it is rather slow on these
machines

it'll be interesting to see how dillo developes - i think that'll be the
best bet speed wise on the 712/60's

James S





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From: Randolph Chung <randolph@tausq.org>
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Dave, FYI I upgraded a bunch of stuff on gsyprf11.... let me know if you
see any new breakage. In particular I think bash should be in better
shape now.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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On Mon, Mar 11, 2002 at 02:56:25PM -0800, Gururaj Ananthateerta wrote:
> I have 3 partitions on primary disk
>    Device Boot    Start       End    Blocks   Id  System
> /dev/sda1             1        95     97264   f0  Linux/PA-RISC boot
> /dev/sda2            96       339    249856   82  Linux swap
> /dev/sda3           340      8683   8544256   83  Linux
> 
> I am doing some modifications to the code and trying to boot with a new
> linux.
> I placed my vmlinux in /boot, but the palo doesn't seems to recognize my
> kernel.

How does the palo.conf look like?
What happens if you run palo?

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
The admin is suffering so bad from sleep deprivation that they may as well not be there for all the sense you can make of the words they are saying. 




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> Dave, FYI I upgraded a bunch of stuff on gsyprf11.... let me know if you
> see any new breakage. In particular I think bash should be in better
> shape now.

The biggest issue on gsyprf11 is the filling of the log file with page
faults.  I've more or less given up running the gcc testsuite because
expect almost always seems to get into a state where it causes an
enormous number of page faults and then hangs when when the /var
file system is full.  I have noticed that various pthread test
programs in the libstdc++ testsuite also cause many page faults.
It's possible this problem is specific to 64-bit machines.

There haven't been as many random seg faults recently.

Has anybody worked on the various "dl-" routines in glibc/sysdeps/hppa
recently?  That's probably where the dynamic loader problem lies.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> Has anybody worked on the various "dl-" routines in glibc/sysdeps/hppa
> recently?  That's probably where the dynamic loader problem lies.

afaik ESIEE guys are looking at glibc.... thibaut? clement? any comments?

randolph
-- 
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 ( >__< )
 ^^ ~~ ^^



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Subject: Re: [parisc-linux] Konqueror without aRts? (Was: Mozilla and Galeon)
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> Hi James,
>
> Running KDE was a problem on my machines: 715/100XC, 712/80. It took about
> 5min from loging
> in at KDM to see KDE, producing 3 times a "knotify"-error. From this list
> I got the tip that this was due
> to "libarts" and indeed, after removing "libarts", the login process was
> much faster and would not
> give me the "knotify"-errors anymore.
> Unfortunately removing "libarts" meant removing "konqueror" as well, or at
> least "dselect" would
> always force the removal.
>
> Did you find a way to have "konqueror" without "aRts" ? Or don't you have
> the problem with KDM
> login ?
>
i sort of cheated - i'm using windowmaker & ran konqueror under that
although it was still painfully slow to load

i dont think the arts lib is a dependency of konqueror, it must be a
dependant of another section of KDE

i also never used any of the the login managers (kdm xdm etc) as i dont do
any remote x-logins, so i never encountered any problems there.

James S







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Gururaj Ananthateerta wrote:
> I have 3 partitions on primary disk
>    Device Boot    Start       End    Blocks   Id  System
> /dev/sda1             1        95     97264   f0  Linux/PA-RISC boot
> /dev/sda2            96       339    249856   82  Linux swap
> /dev/sda3           340      8683   8544256   83  Linux

partitions are fine.

> I am doing some modifications to the code and trying to boot with a new
> linux.
> I placed my vmlinux in /boot, but the palo doesn't seems to recognize my
> kernel.

What do you mean by "doesn't seems to recognize"?
any specific error msg?

does palo.conf point to that kernel?
or did you interact with palo to tell it to load that image?
"file /boot/vmlinux" says what?

you don't have to answer the above - just stuff to think about.

grant



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Le mardi 12 mars 2002, =E0 05:46 , Randolph Chung a =E9crit :

>> Has anybody worked on the various "dl-" routines in =
glibc/sysdeps/hppa
>> recently?  That's probably where the dynamic loader problem lies.
>
> afaik ESIEE guys are looking at glibc.... thibaut? clement? any=20
> comments?
>
Well we're actually trying to rewrite the dynamic symbol resolver=20
following the ia64 model -- this should result in a significant speedup.=20=

(according to ACM)

We're currently focusing on the last point, so if we succeed, it might=20=

solve the problem (assuming it works fine on ia64).

We will keep the m-l informed of the progress of our work...


Thibaut VARENE
PA/Linux ESIEE Team
http://www.esiee.fr/puffin




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Built a new kernel and trying to boot with the new one.
the following message appeared .

 ----------error Msg Start------------------
 Branching to kernel entry point 0x00100058.  If this is the last
 message you see, you may need to switch your console.  This is
 a common symptom -- search the FAQ and mailing list at parisc-linux.org


 ---END-------------------------------------------

I guess that I may have ommitted some console drivers during building my
kernel.
Anyine has nay clue about this.

I am using the following machines.
HP-N Class server.
Console is through a lanronix box.
Linux code I am using is linux-latest.tar.gz from ftp.parisc.org

I searched the mailing list, but didn't get anything specific.
Guru





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On Tue, Mar 12, 2002 at 11:58:06AM -0800, Gururaj Ananthateerta wrote:
> I guess that I may have ommitted some console drivers during building my
> kernel.
> Anyine has nay clue about this.

I would assume CONFIG_SERIAL_CONSOLE is the option you're missing.
Another option might be CONFIG_SERIAL, but I suspect you turned on
support for your serial ports :-)

> I am using the following machines.
> HP-N Class server.

N class isn't supported.  There are a number of problems which need to
be solved to support N class...

> I searched the mailing list, but didn't get anything specific.

I'm surprised, I thought this was in the FAQ.

-- 
Revolutions do not require corporate support.



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I figured out my mistake.

First my partitions weren't correct. I created
an F0 partition, and swap and an ext2 for /.

boot partition was missing, rather it was i /. As / is not mounted
during the early stages of boot (my guess) the palo used to scream at
me.

Secondly, a strange observation.  Partitions are created in the following
order seems to have have some problem  during from /boot/vmlinux.

50 MB of  FO partition
50 MB of /boot
256 MB of swap
remaining for /

Problem is solved if partitions are created in the following order.

/dev/sda1             1        95     97264   83
Linux                           /boot
/dev/sda2            96       119     24576   f0  Linux/PA-RISC boot
/dev/sda3           120       363    249856   82  Linux swap
/dev/sda4           364      8683   8519680   83  Linux                    /

Doesn't make much sense.

One more thing to add, I am doing all this stuff on a N-Class.

Guru








Grant Grundler wrote:

> Gururaj Ananthateerta wrote:
> > I have 3 partitions on primary disk
> >    Device Boot    Start       End    Blocks   Id  System
> > /dev/sda1             1        95     97264   f0  Linux/PA-RISC boot
> > /dev/sda2            96       339    249856   82  Linux swap
> > /dev/sda3           340      8683   8544256   83  Linux
>
> partitions are fine.
>
> > I am doing some modifications to the code and trying to boot with a new
> > linux.
> > I placed my vmlinux in /boot, but the palo doesn't seems to recognize my
> > kernel.
>
> What do you mean by "doesn't seems to recognize"?
> any specific error msg?
>
> does palo.conf point to that kernel?
> or did you interact with palo to tell it to load that image?
> "file /boot/vmlinux" says what?
>
> you don't have to answer the above - just stuff to think about.
>
> grant




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Matthew Wilcox wrote:

> On Tue, Mar 12, 2002 at 11:58:06AM -0800, Gururaj Ananthateerta wrote:
> > I guess that I may have ommitted some console drivers during building my
> > kernel.
> > Anyine has nay clue about this.
>
> I would assume CONFIG_SERIAL_CONSOLE is the option you're missing.
> Another option might be CONFIG_SERIAL, but I suspect you turned on
> support for your serial ports :-)
>

both of them are set to 'y'


>
> > I am using the following machines.
> > HP-N Class server.
>
> N class isn't supported.  There are a number of problems which need to
> be solved to support N class...

Yes I am aware of it.
I am trying to work on some of those problems.


>
> > I searched the mailing list, but didn't get anything specific.
>
> I'm surprised, I thought this was in the FAQ.
>

Yes, this isn't  in the FAQ  yet.


>
> --
> Revolutions do not require corporate support.




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On Tue, Mar 12, 2002 at 12:37:24PM -0800, Gururaj Ananthateerta wrote:
> both of them are set to 'y'

OK.  Since this is an N class, the serial ports should be automatically
detected on the Diva card.  Towards the top of arch/parisc/kernel/pdc_cons.c
you'll see:

/* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems. 
 * On production kernels EARLY_BOOTUP_DEBUG should be undefined. */
#undef EARLY_BOOTUP_DEBUG

Change the #undef to #define and recompile.  Do you see any more output?

-- 
Revolutions do not require corporate support.



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Gururaj Ananthateerta wrote:
> First my partitions weren't correct. I created
> an F0 partition, and swap and an ext2 for /.

That's right - my bad.
(Not having a good day today)

> /dev/sda1             1        95     97264   83
> Linux                           /boot
> /dev/sda2            96       119     24576   f0  Linux/PA-RISC boot
> /dev/sda3           120       363    249856   82  Linux swap
> /dev/sda4           364      8683   8519680   83  Linux                    /

If your / (sda3 in the previous example) *ends* before 2GB,
you don't need a /boot partition. Several boot/install howto's
describe this problem. I didn't catch it in your original mail.

> > Gururaj Ananthateerta wrote:
> > > I have 3 partitions on primary disk
> > >    Device Boot    Start       End    Blocks   Id  System
> > > /dev/sda1             1        95     97264   f0  Linux/PA-RISC boot
> > > /dev/sda2            96       339    249856   82  Linux swap
> > > /dev/sda3           340      8683   8544256   83  Linux
> >
> > partitions are fine.

NOT!

BTW, take a look at
	http://www.parisc-linux.org/hardware/supported.html

hth,
grant



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Matthew Wilcox wrote:

> On Tue, Mar 12, 2002 at 12:37:24PM -0800, Gururaj Ananthateerta wrote:
> > both of them are set to 'y'
>
> OK.  Since this is an N class, the serial ports should be automatically
> detected on the Diva card.  Towards the top of arch/parisc/kernel/pdc_cons.c
> you'll see:
>
> /* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems.
>  * On production kernels EARLY_BOOTUP_DEBUG should be undefined. */
> #undef EARLY_BOOTUP_DEBUG

Apologies folks.
helped a lot. I cud figure out that my kernel was  a32-bit
i got htis hppa-linux-gcc and compiled  a 64-bit kernel.
things are still ugly.

anyone working on supporting N-class.




>
>
> Change the #undef to #define and recompile.  Do you see any more output?
>
> --
> Revolutions do not require corporate support.




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Subject: Re: [parisc-linux] Switch console error.
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Gururaj Ananthateerta writes...

> Apologies folks.
> helped a lot. I cud figure out that my kernel was  a32-bit
> i got htis hppa-linux-gcc and compiled  a 64-bit kernel.

You need hppa64-linux-gcc to build a 64 bit kernel. You can get compilers 
from the ftp.parisc-linux.org site.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation





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Matt Taggart wrote:

> Gururaj Ananthateerta writes...
>
> > Apologies folks.
> > helped a lot. I cud figure out that my kernel was  a32-bit
> > i got htis hppa-linux-gcc and compiled  a 64-bit kernel.
>
> You need hppa64-linux-gcc to build a 64 bit kernel. You can get compilers
> from the ftp.parisc-linux.org site.

I did that, but the kernel panic during  boot and the following was the
message
on the screen.

--------------------------------Start Msg -------------------------
29. Prelude W+ 540 (0) at 0xfffffffffed65000 [101], versions 0x5d3, 0x0, 0x4

CPU(s): 6 x PA8600 (PCX-W+) at 550.000000 MHz
SBA found Ike rev 2 at 0xfffffffffed00000
SBA found Ike rev 2 at 0xfffffffffed40000
lba version TR2.2 (0x3) found at 0xffffffffbffe0000
lba range[2] : ignoring GMMIO (0xfffffff004000000)
lba version TR2.2 (0x3) found at 0xffffffffbffe2000
lba range[2] : ignoring GMMIO (0xfffffff084000000)
lba version TR3.0 (0x4) found at 0xffffffffbffe4000
kernel BUG at lba_pci.c:1250!
kernel BUG at lba_pci.c:1285!
lba range[2] : ignoring GMMIO (0xfffffff104000000)
lba version TR3.0 (0x4) found at 0xffffffffbffe8000
kernel BUG at lba_pci.c:1250!
kernel BUG at lba_pci.c:1285!
lba range[2] : ignoring GMMIO (0xfffffff204000000)
lba version TR3.0 (0x4) found at 0xffffffffbffea000
kernel BUG at lba_pci.c:1250!
kernel BUG at lba_pci.c:1285!
lba range[2] : ignoring GMMIO (0xfffffff284000000)
lba version TR3.0 (0x4) found at 0xffffffffbfff0000
kernel BUG at lba_pci.c:1250!
kernel BUG at lba_pci.c:1285!
lba range[2] : ignoring GMMIO (0xfffffff404000000)
lba version TR3.0 (0x4) found at 0xffffffffbfff4000
kernel BUG at lba_pci.c:1250!
kernel BUG at lba_pci.c:1285!
lba range[2] : ignoring GMMIO (0xfffffff504000000)
lba version TR3.0 (0x4) found at 0xffffffffbfff8000
kernel BUG at lba_pci.c:1250!
kernel BUG at lba_pci.c:1285!
lba range[2] : ignoring GMMIO (0xfffffff604000000)
lba version TR3.0 (0x4) found at 0xfffffffffece0000
kernel BUG at lba_pci.c:1250!
kernel BUG at lba_pci.c:1285!
lba range[2] : ignoring GMMIO (0xfffffff804000000)
lba version TR3.0 (0x4) found at 0xfffffffffece4000
kernel BUG at lba_pci.c:1250!
kernel BUG at lba_pci.c:1285!
lba range[2] : ignoring GMMIO (0xfffffff904000000)
lba version TR3.0 (0x4) found at 0xfffffffffece8000
kernel BUG at lba_pci.c:1250!
kernel BUG at lba_pci.c:1285!
lba range[2] : ignoring GMMIO (0xfffffffa04000000)
lba version TR3.0 (0x4) found at 0xfffffffffecf0000
kernel BUG at lba_pci.c:1250!
kernel BUG at lba_pci.c:1285!
lba range[2] : ignoring GMMIO (0xfffffffc04000000)
lba version TR3.0 (0x4) found at 0xfffffffffecf4000
kernel BUG at lba_pci.c:1250!
kernel BUG at lba_pci.c:1285!
lba range[2] : ignoring GMMIO (0xfffffffd04000000)
lba version TR3.0 (0x4) found at 0xfffffffffecf8000
kernel BUG at lba_pci.c:1250!
kernel BUG at lba_pci.c:1285!
lba range[2] : ignoring GMMIO (0xfffffffe04000000)
POSIX conformance testing by UNIFIX
FP[1] enabled: Rev 1 Model 16
FP[2] enabled: Rev 1 Model 16
FP[3] enabled: Rev 1 Model 16
FP[4] enabled: Rev 1 Model 16
FP[5] enabled: Rev 1 Model 16
SMP: Total 6 of 6 processors activated (6586.37 BogoMIPS noticed).
Waiting on wait_init_idle (map = 0x3e)
All processors have done init_idle
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Performance monitoring counters enabled for Prelude W+ 540
Starting kswapd
Journalled Block Device driver loaded
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
Redundant entry in serial pci_table.  Please send the output of
lspci -vv, this message (103c,1048,103c,1049)
and the manufacturer and name of serial board or modem board
to serial-pci-info@lists.sourceforge.net.
ttyS00 at iomem 0xffffffff80000000 (irq = 132) is a 16550A
ttyS01 at iomem 0xffffffff80000008 (irq = 132) is a 16550A
ttyS02 at iomem 0xffffffff80000010 (irq = 132) is a 16550A
Redundant entry in serial pci_table.  Please send the output of
lspci -vv, this message (103c,1048,103c,104a)
and the manufacturer and name of serial board or modem board
to serial-pci-info@lists.sourceforge.net.
ttyS03 at iomem 0xffffffff80003000 (irq = 133) is a 16550A
ttyS04 at iomem 0xffffffff80003008 (irq = 133) is a 16550A
lp: driver loaded but no devices found
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
eth0: Digital DS21143 Tulip rev 65 at 0x80, 00:10:83:F5:85:5B, IRQ 128.
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 2, function 0
sym53c8xx: 53c875 detected
sym53c8xx: at PCI bus 0, device 2, function 1
sym53c8xx: 53c875 detected
sym53c8xx: at PCI bus 0, device 1, function 0
sym53c8xx: 53c895 detected
sym53c875-0: rev 0x14 on pci bus 0 device 2 function 0 irq 130
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-1: rev 0x14 on pci bus 0 device 2 function 1 irq 131
sym53c875-1: ID 7, Fast-20, Parity Checking
sym53c895-2: rev 0x1 on pci bus 0 device 1 function 0 irq 129
sym53c895-2: ID 7, Fast-10, Parity Checking
sym53c895-2: SCSI bus mode change from 80 to 80.
scsi0 : sym53c8xx-1.7.3c-20010512
scsi1 : sym53c8xx-1.7.3c-20010512
scsi2 : sym53c8xx-1.7.3c-20010512
  Vendor: SEAGATE   Model: ST39103LC         Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: HP        Model: DVD-ROM 305       Rev: 1.01
  Type:   CD-ROM                             ANSI SCSI revision: 02
Attached scsi disk sda at scsi1, channel 0, id 6, lun 0
sym53c875-1-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
SCSI device sda: 17783112 512-byte hdwr sectors (9105 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
Attached scsi CD-ROM sr0 at scsi2, channel 0, id 2, lun 0
sym53c895-2-<2,*>: FAST-10 SCSI 10.0 MB/s (100.0 ns, offset 16)
sr0: scsi3-mmc drive: 16x/40x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12
sticonsole_init: searching for STI ROMs
BUG: Skipping previously registered driver: sti (native)
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :  2536.400 MB/sec
   8regs_prefetch:  1966.400 MB/sec
   32regs    :  2071.600 MB/sec
   32regs_prefetch:  1935.600 MB/sec
raid5: using function: 8regs (2536.400 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 2048 buckets, 96Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
NOT FREEING INITMEM (488k)
INIT: version 2.84 booting

************* SYSTEM ALERT **************
SYSTEM NAME: hpntc660
DATE: 03/12/2002 TIME: 23:39:32
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         FLASH     ON         ON

0x0000407000FF6292 00000000 00000000 - type  0 = Data Field Unused
0x5800487000FF6292 00006602 0C172720 - type 11 = Timestamp 03/12/2002
23:39:32
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:Timeout!
*****************************************

----------------------End Msg---------------------------





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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Switch console error.
Date: Wed, 13 Mar 2002 00:31:24 +0100
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To: Matthew Wilcox <willy@debian.org>
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First of all, have you really waited for a long time, when the machines
hangs on that "last" console output. I have made the experience, that
sometimes (I have not found a systematic behind that, yet) the machine
delays for a longer while (up to half a minute) and suddenly it
continoues
booting perfectly.

Second, you may play around with the PDC console driver for linux
(/dev/ttyB0 at major 60). If this driver is configured
(CONFIG_PDC_CONSOLE,
under "Non-standard serial port support"), then you have the same
effect as activating macro "EARLY_BOOTUP_DEBUG", but you can use
non-supported serial consoles (PDC console) as full console device
including login, etc.....

See the HELP button of CONFIG_PDC_CONSOLE for more details on setup.

With friendly regards
Christoph Plattner



Matthew Wilcox wrote:
> 
> On Tue, Mar 12, 2002 at 12:37:24PM -0800, Gururaj Ananthateerta wrote:
> > both of them are set to 'y'
> 
> OK.  Since this is an N class, the serial ports should be automatically
> detected on the Diva card.  Towards the top of arch/parisc/kernel/pdc_cons.c
> you'll see:
> 
> /* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems.
>  * On production kernels EARLY_BOOTUP_DEBUG should be undefined. */
> #undef EARLY_BOOTUP_DEBUG
> 
> Change the #undef to #define and recompile.  Do you see any more output?
> 
> --
> Revolutions do not require corporate support.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Subject: Re: [parisc-linux] Switch console error.
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On Tue, Mar 12, 2002 at 03:08:31PM -0800, Gururaj Ananthateerta wrote:
> I did that, but the kernel panic during  boot and the following was the
> message
> on the screen.

> VFS: Mounted root (ext2 filesystem) readonly.
> NOT FREEING INITMEM (488k)
> INIT: version 2.84 booting

So, the kernel runs fine, until it starts executing userspace.  Here's
what we _think_ is going on:

The kernel has its own mappings for pages so it can take advantage of
16MB pages.  These are not coherent with the pages that are mapped into
user space.  By (ab)using the kmap() functionality, this problem can be
solved and may even result in a performance increase for all machines.
No real time to work on this...

-- 
Revolutions do not require corporate support.



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Matthew Wilcox wrote:
> The kernel has its own mappings for pages so it can take advantage of
> 16MB pages.  These are not coherent with the pages that are mapped into
> user space. 

And this would cause an HPMC?
(iirc, chassis codes indicated HPMC)
If someone could decode the Gururaj's HPMC data ("ser pim" from BCH prompt)
and post the results.  At worst, it would confirm this theory.

> By (ab)using the kmap() functionality, this problem can be
> solved and may even result in a performance increase for all machines.
> No real time to work on this...

Sorry, I'm not VM clueful enough to understand why this would be a
problem on N-class and not other boxes.  I know coherency works differently
here (Merced Bus is "central" vs Runway for most other boxes).
Someplace to look for more clues?
just curious...

thanks,
grant



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On Tue, Mar 12, 2002 at 04:03:59PM -0800, Gururaj Ananthateerta wrote:
> well, this whole exercise was to contribute to parisc linux developement.
> well I got something to work on then.  Can u help me with sime jumpstarters.

sure.  here's the plan i had.  you may disagree...

The architecture guarantees us that pages which are mapped at the same
address, modulo 4MB, will be cache coherent.  We already take advantage
of this (see get_shared_area in arch/parisc/kernel/sys_parisc.c, called
via arch_get_unmapped_area from the mmap path).  So all user mappings of a
page are coherent.  What isn't coherent is the kernel's view of the page.

Before the kernel accesses a page which is in the page cache (all pages
which can be mmaped live in the page cache), it calls kmap() and after
it has finished accessing this page, it calls kunmap().  This scheme was
invented for the benefit of architectures which support more physical
memory then it has address lines for (eg PAE36 on x86).

So if we reserve a large chunk of the kernel's address space to map
page cache pages into temporarily with kmap, we can provide the kernel
with a coherent view of the page.  Superdome only supports 128GB ram,
so by reserving a 128TB chunk of address space (hey, we have plenty of
address space..)  we give each 4k page a 4MB space to be mapped in.

The obvious way to do it, which I've described to everyone up until
now is to do something like:

void *kmap(struct *page) {
	struct vm_area_struct *vma = page->mapping->i_mmap_shared;
	if (!vma)
		return page->virtual;
	return (void *) ((unsigned long) page->virtual << 10 | vma->vm_pgoff);
}

But I wonder whether it might not be feasible to simply adjust
page->virtual when changing the mapping of a page into userspace.
Something to investigate further.

This is the easy part of the solution.  The part I haven't even attempted
to describe is, what if we get a TLB miss?  See the assembly code for the
TLB miss handler in arch/parisc/kernel/entry.S, starting at dtlb_miss_20w:
You'd probably want to modify dtlb_check_alias_20w to check for this case
rather than insert a huge number of TLB entries.

-- 
Revolutions do not require corporate support.



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On Tue, Mar 12, 2002 at 06:42:06PM -0700, Grant Grundler wrote:
> Matthew Wilcox wrote:
> > The kernel has its own mappings for pages so it can take advantage of
> > 16MB pages.  These are not coherent with the pages that are mapped into
> > user space. 
> 
> And this would cause an HPMC?

Yes, indirectly, see below.

> If someone could decode the Gururaj's HPMC data ("ser pim" from BCH prompt)
> and post the results.  At worst, it would confirm this theory.

Yes, that would certainly help.  As I said, it is only a theory...

> Sorry, I'm not VM clueful enough to understand why this would be a
> problem on N-class and not other boxes.  I know coherency works differently
> here (Merced Bus is "central" vs Runway for most other boxes).
> Someplace to look for more clues?

It's not to do with the bus (AFAIK...).  It's to do with Stretch (the
memory controller).  We've got away with using non-equivalent aliases (see
the PA 2.0 book [1]) up until now, but it seems that Stretch doesn't let
us get away with it any more.  So we have to be sure to use equivalent
aliases when accessing a page.  It's been suggested to me that Stretch
has its own tags for a page and if it gets writes to different tags on
the same physical page, it generates an HPMC.

[1] I would have given a reference here, but
http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,959,00.html
gives me a Redirection Limit exceeded error... hopefully this will get
fixed soon.

-- 
Revolutions do not require corporate support.



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> [1] I would have given a reference here, but
> http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,959,00.html
> gives me a Redirection Limit exceeded error... hopefully this will get
> fixed soon.

until it gets fixed, you can get the PDF version

it's in appendix F, in the dead-tree book format it's on page F-5.
Here's the PDF:

http://h21007.www2.hp.com/dspp/files/unprotected/parisc20/PA_F_TLB_cache.pdf

not that i know what it means after i read the section... :-)

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/



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To: Grant Grundler <grundler@dsl2.external.hp.com>
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> Gururaj Ananthateerta wrote:
> > I have 3 partitions on primary disk
> >    Device Boot    Start       End    Blocks   Id  System
> > /dev/sda1             1        95     97264   f0  Linux/PA-RISC boot
> > /dev/sda2            96       339    249856   82  Linux swap
> > /dev/sda3           340      8683   8544256   83  Linux
> 
> partitions are fine.

Actually they're not.  This is a frequent install problem and I've
replied off the list about it.  The root partition passes the 2G limit
and Gururaj now has a small /boot I think.

	-P



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From: Gururaj Ananthateerta <gururaj@cup.hp.com>
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Paul Bame wrote:

> > Gururaj Ananthateerta wrote:
> > > I have 3 partitions on primary disk
> > >    Device Boot    Start       End    Blocks   Id  System
> > > /dev/sda1             1        95     97264   f0  Linux/PA-RISC boot
> > > /dev/sda2            96       339    249856   82  Linux swap
> > > /dev/sda3           340      8683   8544256   83  Linux
> >
> > partitions are fine.
>
> Actually they're not.  This is a frequent install problem and I've
> replied off the list about it.  The root partition passes the 2G limit
> and Gururaj now has a small /boot I think.
>

>         -P

yes you are right,
thanks
grant clarified this in his previous mail.







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From: "Dreeling, Michael" <michael.dreeling@marconi.com>
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Subject: [parisc-linux] E35 816 Server & PA/Linux
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Hi People,
I've got a newly acquired E35 816 Server which i'm trying to stick PA-Linux
onto.
Unfortunately i get this old error, which i have seen many people have
problems with.

Loading ramdisk 1946807 bytes @ 03e14000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

I had seen on the site that someone had an E35 up and running (in the
Hardware Database)
but i also know that the E Series are officially unsupported. I tried the
0.93 (latest) Version from the 50MB ISO.
Is there any way i can get parisc lunix onto this Box??

Thanks
Michael



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From: joel.soete@freebel.net
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Subject: [parisc-linux] evms-0.9.2 build utilities problem
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Hi all,

The original way to build some evms utilities as evms_devnode_fixup is:

...
gcc -Wall -fPIC -O2 -I/tools/evms-dpkg/evms-0.9.2/engine/include
-I/tools/evms-dpkg/evms-0.9.2/engine/dlist
-I/tools/evms-dpkg/evms-0.9.2/kernel-headers/include -I/usr/include
-I/usr/local/include -DPluginDirectory=\"/lib/evms\" -DEVMS_DEBUG -DPARANOID
-DMAJOR_VERSION=1 -DMINOR_VERSION=0 -DPATCH_LEVEL=0 -DVERSION=\"1.0.0\"
-DDATE=\"03/13/02\" -c -o evms_devnode_fixup.o evms_devnode_fixup.c
...
gcc -L/tools/evms-dpkg/evms-0.9.2/engine/Engine
-L/tools/evms-dpkg/evms-0.9.2/engine/dlist  -static -o evms_devnode_fixup
evms_devnode_fixup.o -levms -ldlist -lpthread -ldl

...
Well launch it made an immidiate Segmentation fault.

Now I recompile without "-fPIC" and it works fine.

Any idea on what is wrong?

Thanks in advance for help,
    Joel


-------------------------------------------------
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> Well launch it made an immidiate Segmentation fault.
> 
> Now I recompile without "-fPIC" and it works fine.
> 
> Any idea on what is wrong?

what versions of gcc-3.0 and binutils are you running?

dpkg -s gcc-3.0 |grep Version
dpkg -s binutils |grep Version

randolph
-- 
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 ( >__< )
 ^^ ~~ ^^



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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] E35 816 Server & PA/Linux
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To: "Dreeling, Michael" <michael.dreeling@marconi.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:14335

You may have a chance, using this machine as a diskless machine
with NFS ROOT file system.

We have added a "PDC ROM console" driver to the kernel (I needed this
for my E55). You can compile a kernel with the CONFIG_PDC_CONSOLE
(config under "Non-standard serial port support" under "Character
Devices")
and follow the setup instruction in the HELP of CONFIG_PDC_CONSOLE.
(Creating the device `/dev/ttyB0' and setting up the `console=ttyB0'
kernel line parameter and modify `/etc/inittab'.

If it is the same as on my E55, you cannot access the serial ports
(MDP MUX board with 8 serial), the parallel port and the SCSI interface.
The serial port-0 on the MUX is used a PDC console (default setup),
and the new linux driver accesses this ROM PDC console (port 0).

The core machine and ethernet is working on my E55.

I hope this helps and good luck

Christoph P.



"Dreeling, Michael" wrote:
> 
> Hi People,
> I've got a newly acquired E35 816 Server which i'm trying to stick PA-Linux
> onto.
> Unfortunately i get this old error, which i have seen many people have
> problems with.
> 
> Loading ramdisk 1946807 bytes @ 03e14000...
> Branching to kernel entry point 0x00100000.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org
> 
> I had seen on the site that someone had an E35 up and running (in the
> Hardware Database)
> but i also know that the E Series are officially unsupported. I tried the
> 0.93 (latest) Version from the 50MB ISO.
> Is there any way i can get parisc lunix onto this Box??
> 
> Thanks
> Michael
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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From: "BRUCE,WALTER (Non-HP-USA,ex3)" <walter_bruce@non.hp.com>
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Subject: [parisc-linux] HP Books Request for book proposals
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HP Books publishes books for technical professionals in collaboration with
the publisher Prentice Hall/PTR. Our on catalog can be viewed at
http://www.hp.com/hpbooks/. In January we announced a new open source series
dedicated to publihing books on open source and Linux (see
http://www.hp.com/hpbooks/news/perens_os_011502.html). We are particularly
interested in receiving proposals for books on the following open source,
Linux, and related topics:

- Linux Internals
- Embedded Linux
- Linux Security
- PA-RISC Linux
- XML
- Ruby Network Programming
- JBOSS & J2EE
- Linux Performance Tuning
- eXtreme Progamming

Follow the link to the employee site on the /hpbooks page and look for "Want
to write a book" link for information on drafting and submitting a proposal.
Or email me (Walter_Bruce@non.hp.com), and I will send you the book proposal
form.

Thanks



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anyone has any clue to generate a TOC on B180L






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On Wed, Mar 13, 2002 at 07:31:21PM -0800, Gururaj Ananthateerta wrote:
> anyone has any clue to generate a TOC on B180L

Little button on the back, press it with a pen tip.

-- 
Revolutions do not require corporate support.



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tried , that button is not present.
there is a place holder but.




Matthew Wilcox wrote:

> On Wed, Mar 13, 2002 at 07:31:21PM -0800, Gururaj Ananthateerta wrote:
> > anyone has any clue to generate a TOC on B180L
>
> Little button on the back, press it with a pen tip.
>
> --
> Revolutions do not require corporate support.




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Gururaj Ananthateerta wrote:
> tried , that button is not present.
> there is a place holder but.

uhm...it's possible the machine is locked up in a way
where TOC is not effective...IIRC, it's a recessed, blue button
about 1mm is diameter. I expect (but haven't checked)
the B180 owners guide to be on docs.hp.com and it should
describe where TOC button is.

grant



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Subject: Re: [parisc-linux] evms-0.9.2 build utilities problem
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Randolph,

Sorry (I would have to mentioned)

Quoting Randolph Chung <randolph@tausq.org>:

> > Well launch it made an immidiate Segmentation fault.
> > 
> > Now I recompile without "-fPIC" and it works fine.
> > 
> > Any idea on what is wrong?
> 
> what versions of gcc-3.0 and binutils are you running?
> 
> dpkg -s gcc-3.0 |grep Version

Version: 1:3.0.4-3

> dpkg -s binutils |grep Version

Version: 2.11.93.0.2-3


Joel

PS: This can be reproduce with a simple "Hello World" (just to avoid to sempt
time to find back the the sources of evms)

-------------------------------------------------
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Hi Grant,

On my B180L the TOC blue button is located (on the back of the 'server') just
between the keyboard connector and the video connector. (On all we have here,
the button is located at the same place).

Joel

PS: Is this interrupt will be consider as a hardware reset by linux kernel? (I
never try it because LKCD is not yet available)
 

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> PS: This can be reproduce with a simple "Hello World" (just to avoid to sempt
> time to find back the the sources of evms)

<sigh> yup... looks like a compiler (linker?) bug...

gcc -fPIC -o test test.c          -> works
gcc -fPIC -static -o test test.c  -> segfaults

test.c is a printf("Hello") kinda program

verified with both gcc-3.0.4 and gcc-3.1.

Dave, is this a known problem?

randolph
-- 
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joel.soete@freebel.net wrote:
> On my B180L the TOC blue button is located (on the back of the 'server') just
> between the keyboard connector and the video connector. (On all we have here,
> the button is located at the same place).

thanks - should be the same place for all B-xxx machines.

> PS: Is this interrupt will be consider as a hardware reset by linux kernel?

I don't know...I expect it be treated like an HPMC (or NMI)...which
depending on how the HW has locked up...



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> <sigh> yup... looks like a compiler (linker?) bug...
> 
> gcc -fPIC -o test test.c          -> works
> gcc -fPIC -static -o test test.c  -> segfaults

I don't think so.  I did a little test and found r19 has the value 4
when main is called.  There must be a problem with the startup code.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Has anyone got Mozilla to compile and run?  The latest version of Mozilla I
could find
didn't know about parisc Linux.  I've seen lots of questions and problems
here but
no indication that anyone has got it to work.  I'm willing to put some
effort into it, but
I don't want to reinvent the wheel if someone else already has it working.

Chris Moore
HPUX Kernel WTEC




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Grant Grundler wrote:
>
> John wrote:
>>
>> I saw your post from this weekend. Did you actually get X working on your 
>> C3000 with the Visualize-EG?! If a mere mortal can patch the kernel (or you 
>> have it available) I'd love to try it on my C200 to see if it works now 
>> too.
> 
> patch is on ftp.p-l.o/patches/entry.S-diff.
> Then:
>         cd /usr/src/linux
>         patch -p0 < entry.S-diff
>         make vmlinux
> 
> I don't have any kernels suitable for C200 built since I remove ccio driver 
> from the c3k builds. I expect to commit the patch today or tomorrow and can
> build "generic" kernels then.

I wanted to share the good news that Grant's recent patch to "entry.S" yields a
new kernel (2.4.18-pa05) which allows X-windows to work on my C200 with
Visualize-EG graphics. Before installing the patch I would get an HPMC when X
tried to start. I got gdm up & running fine, but have had some troubles with KDE
that I hope to resolve. The 8-bit color isn't great, but that's all I've got!
Thanks Grant!

John



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Hi,

At 10:14 14.03.2002 -0800, MOORE,CHRISTOPHER (HP-USA,ex1) wrote:
>Has anyone got Mozilla to compile and run?

I don't compile it.
I just apt-get installed it :)

apt-get install mozilla works fine since last sunday.

But it doesn't really works. Because it breaks with an segmentation fault=20
short after starting.

cya,
Tilo

|[ Tilo Jandt, K=F6rnerstra=DFe 8, D-09306 Rochlitz         ]|
|[ mailto:tilo@jandt-online.net ]  [ ICQ: 73832493              ]|
|[ Phone: +49 179 5333 255   ]  [ Fax: +49 3737 771478  ]|





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From: Grant Grundler <grundler@dsl2.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: PA-RISC 0.9.3+C200+Visualize-EG+2.4.18-pa05 = working X!
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John wrote:
> I wanted to share the good news that Grant's recent patch to "entry.S"
...
> Thanks Grant!

That's great news!

But Thomas Bogendoerf should get most of the credit for figuring
out the problem and fix. I just implemented what he said.

BTW, I've modified the patch a bit (removed an un-needed depdi)
and it's still not committed yet. I'd like to let Thomas
commit it himself since he really did the hard part.

grant



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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] STI without PCI
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Right now, it's not possible to compile STI in without PCI.  This patch
should fix that.  Feedback appreciated.

Index: drivers/video/sti/sticore.c
===================================================================
RCS file: /var/cvs/linux/drivers/video/sti/sticore.c,v
retrieving revision 1.37
diff -u -p -r1.37 sticore.c
--- drivers/video/sti/sticore.c	2002/03/03 23:05:06	1.37
+++ drivers/video/sti/sticore.c	2002/03/15 13:56:24
@@ -918,10 +918,10 @@ static int __init sticore_pa_init(struct
 	return 0;
 }
 
-
 static int __devinit sticore_pci_init(struct pci_dev *pd,
 		const struct pci_device_id *ent)
 {
+#ifdef CONFIG_PCI
 	unsigned long fb_base, rom_base;
 	unsigned int fb_len, rom_len;
 	struct sti_struct *sti;
@@ -962,10 +962,9 @@ static int __devinit sticore_pci_init(st
 			pd->name);
 		return -ENODEV;
 	}
-
+#endif /* CONFIG_PCI */
 	return 0;
 }

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Tengo instalado el DTCMANAGER en un HP-UX, en el PA-Linux existe este
producto?




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=?Windows-1252?Q?Onnainty_Jer=F3nimo?= writes...

> Tengo instalado el DTCMANAGER en un HP-UX, en el PA-Linux existe este
> producto?

Not currently. I think this would require both support for the DTC
devices and porting the DTCMANAGER software.

Do you just want to be able to access the devices? This might be possible
if someone wrote the right drivers.

Or do you want to use the DTCMANAGER software too? I don't think the HP
people in charge of this product plan to port it. You could ask
them though. One possiblity is to try and run it under PA-Linux using
the HP-UX binary support. I suspect you'll need the yet-to-be-implemented
signals stuff though, a bunch of HP-UX Libraries, as well as
the hardware support mentioned above(and maybe some sort of conversion
layer depending on how it wants to access the devices).

Short answer: while possible, I don't think it will ever happen. Don't
let that stop you from working on it though :)

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation



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.93 installation woriking fine on n-class.


uname -a
Linux hpntc668 2.4.9-64 #1 Fri Nov 30 20:18:56 MST 2001 parisc64 unknown



-----------------dmesg -output---------------------------------------------
Linux version 2.4.9-64 (root@paer) (gcc version 3.0) #1 Fri Nov 30 20:18:56 MST
2001
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model   00005d30 00000491 00000000 00000002 270f3a47 100000f0 00000008 000000b2
000000b2
vers    00000300
cpuid   0000024a
CPUID   vers 18 rev 10
model   9000/800/N4000-55
Total Memory: 2048 Mb
pagetable_init
On node 0 totalpages: 524288
zone(0): 524288 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda4 HOME=/ console=ttyS0 TERM=vt102
Console: colour dummy device 160x64
Calibrating delay loop... 1097.72 BogoMIPS
Memory: 2023968k available
Dentry-cache hash table entries: 131072 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 9, 2097152 bytes)
Mount-cache hash table entries: 32768 (order: 7, 524288 bytes)
Buffer-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Page-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Searching for devices...
Found devices:
1. Prelude SMC Memory (1) at 0xfffffffffedc0000 [-64], versions 0x90, 0x0, 0x9
2. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed00000 [0], versions
0x803, 0x0, 0xc
3. Elroy PCI Bridge (13) at 0xffffffffbffe0000 [0/0], versions 0x782, 0x0, 0xa
4. Elroy PCI Bridge (13) at 0xffffffffbffe2000 [0/1], versions 0x782, 0x0, 0xa
5. Elroy PCI Bridge (13) at 0xffffffffbffe4000 [0/2], versions 0x782, 0x0, 0xa
6. Elroy PCI Bridge (13) at 0xffffffffbffe8000 [0/4], versions 0x782, 0x0, 0xa
7. Elroy PCI Bridge (13) at 0xffffffffbffea000 [0/5], versions 0x782, 0x0, 0xa
8. Elroy PCI Bridge (13) at 0xffffffffbfff0000 [0/8], versions 0x782, 0x0, 0xa
9. Elroy PCI Bridge (13) at 0xffffffffbfff4000 [0/10], versions 0x782, 0x0, 0xa
10. Elroy PCI Bridge (13) at 0xffffffffbfff8000 [0/12], versions 0x782, 0x0, 0xa
11. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed40000 [1], versions
0x803, 0x0, 0xc
12. Elroy PCI Bridge (13) at 0xfffffffffece0000 [1/0], versions 0x782, 0x0, 0xa
13. Elroy PCI Bridge (13) at 0xfffffffffece4000 [1/2], versions 0x782, 0x0, 0xa
14. Elroy PCI Bridge (13) at 0xfffffffffece8000 [1/4], versions 0x782, 0x0, 0xa
15. Elroy PCI Bridge (13) at 0xfffffffffecf0000 [1/8], versions 0x782, 0x0, 0xa
16. Elroy PCI Bridge (13) at 0xfffffffffecf4000 [1/10], versions 0x782, 0x0, 0xa
17. Elroy PCI Bridge (13) at 0xfffffffffecf8000 [1/12], versions 0x782, 0x0, 0xa
18. DEW BC Runway Port (7) at 0xfffffffffed20000 [32], versions 0x584, 0x0, 0xc
19. Prelude W+ 540 (0) at 0xfffffffffed21000 [33], versions 0x5d3, 0x0, 0x4
20. DEW BC Runway Port (7) at 0xfffffffffed24000 [36], versions 0x584, 0x0, 0xc
21. Prelude W+ 540 (0) at 0xfffffffffed25000 [37], versions 0x5d3, 0x0, 0x4
22. DEW BC Runway Port (7) at 0xfffffffffed28000 [40], versions 0x584, 0x0, 0xc
23. Prelude W+ 540 (0) at 0xfffffffffed29000 [41], versions 0x5d3, 0x0, 0x4
24. DEW BC Runway Port (7) at 0xfffffffffed2c000 [44], versions 0x584, 0x0, 0xc
25. Prelude W+ 540 (0) at 0xfffffffffed2d000 [45], versions 0x5d3, 0x0, 0x4
26. DEW BC Runway Port (7) at 0xfffffffffed60000 [96], versions 0x584, 0x0, 0xc
27. Prelude W+ 540 (0) at 0xfffffffffed61000 [97], versions 0x5d3, 0x0, 0x4
28. DEW BC Runway Port (7) at 0xfffffffffed64000 [100], versions 0x584, 0x0, 0xc
29. Prelude W+ 540 (0) at 0xfffffffffed65000 [101], versions 0x5d3, 0x0, 0x4
CONFIG_SMP=n  ignoring additional CPUs
Warning : device (0, 0x5d3, 0x0, 0x4) NOT claimed by CPU
CONFIG_SMP=n  ignoring additional CPUs
Warning : device (0, 0x5d3, 0x0, 0x4) NOT claimed by CPU
CONFIG_SMP=n  ignoring additional CPUs
Warning : device (0, 0x5d3, 0x0, 0x4) NOT claimed by CPU
CONFIG_SMP=n  ignoring additional CPUs
Warning : device (0, 0x5d3, 0x0, 0x4) NOT claimed by CPU
CONFIG_SMP=n  ignoring additional CPUs
Warning : device (0, 0x5d3, 0x0, 0x4) NOT claimed by CPU
CPU(s): 1 x PA8600 (PCX-W+) at 550.000000 MHz
SBA found Ike rev 2 at 0xfffffffffed00000
SBA found Ike rev 2 at 0xfffffffffed40000
lba version TR2.2 (0x3) found at 0xffffffffbffe0000
lba range[2] : ignoring GMMIO (0xfffffff004000000)
  got res[100:1ff] for resource 0 of Symbios Logic Inc. (formerly NCR) 53c895
  got res[200:2ff] for resource 0 of Symbios Logic Inc. (formerly NCR) 53c875
  got res[300:3ff] for resource 0 of Symbios Logic Inc. (formerly NCR) 53c875
(#2)
  got res[80:ff] for resource 0 of Digital Equipment Corporation DECchip 21142/43

  got res[40:7f] for resource 1 of PCI device 103c:1048 (Hewlett-Packard Company)

  got res[400:43f] for resource 1 of PCI device 103c:1048 (Hewlett-Packard
Company)
  got res[ffffffff80040000:ffffffff8007ffff] for resource 6 of Digital Equipment
Corporation DECchip 21142/43
  got res[ffffffff80001000:ffffffff80001fff] for resource 2 of Symbios Logic Inc.
(formerly NCR) 53c895
  got res[ffffffff80002000:ffffffff80002fff] for resource 2 of Symbios Logic Inc.
(formerly NCR) 53c875
  got res[ffffffff80003000:ffffffff80003fff] for resource 0 of PCI device
103c:1048 (Hewlett-Packard Company)
  got res[ffffffff80004000:ffffffff800043ff] for resource 1 of Digital Equipment
Corporation DECchip 21142/43
  got res[ffffffff80005000:ffffffff800050ff] for resource 1 of Symbios Logic Inc.
(formerly NCR) 53c895
  got res[ffffffff80006000:ffffffff800060ff] for resource 1 of Symbios Logic Inc.
(formerly NCR) 53c875
lba version TR2.2 (0x3) found at 0xffffffffbffe2000
lba range[2] : ignoring GMMIO (0xfffffff084000000)
lba version TR3.0 (0x4) found at 0xffffffffbffe4000
kernel BUG at lba_pci.c:1262!
kernel BUG at lba_pci.c:1288!
lba range[2] : ignoring GMMIO (0xfffffff104000000)
lba version TR3.0 (0x4) found at 0xffffffffbffe8000
kernel BUG at lba_pci.c:1262!
kernel BUG at lba_pci.c:1288!
lba range[2] : ignoring GMMIO (0xfffffff204000000)
lba version TR3.0 (0x4) found at 0xffffffffbffea000
kernel BUG at lba_pci.c:1262!
kernel BUG at lba_pci.c:1288!
lba range[2] : ignoring GMMIO (0xfffffff284000000)
lba version TR3.0 (0x4) found at 0xffffffffbfff0000
kernel BUG at lba_pci.c:1262!
kernel BUG at lba_pci.c:1288!
lba range[2] : ignoring GMMIO (0xfffffff404000000)
lba version TR3.0 (0x4) found at 0xffffffffbfff4000
kernel BUG at lba_pci.c:1262!
kernel BUG at lba_pci.c:1288!
lba range[2] : ignoring GMMIO (0xfffffff504000000)
lba version TR3.0 (0x4) found at 0xffffffffbfff8000
kernel BUG at lba_pci.c:1262!
kernel BUG at lba_pci.c:1288!
lba range[2] : ignoring GMMIO (0xfffffff604000000)
lba version TR3.0 (0x4) found at 0xfffffffffece0000
kernel BUG at lba_pci.c:1262!
kernel BUG at lba_pci.c:1288!
lba range[2] : ignoring GMMIO (0xfffffff804000000)
lba version TR3.0 (0x4) found at 0xfffffffffece4000
kernel BUG at lba_pci.c:1262!
kernel BUG at lba_pci.c:1288!
lba range[2] : ignoring GMMIO (0xfffffff904000000)
lba version TR3.0 (0x4) found at 0xfffffffffece8000
kernel BUG at lba_pci.c:1262!
kernel BUG at lba_pci.c:1288!
lba range[2] : ignoring GMMIO (0xfffffffa04000000)
lba version TR3.0 (0x4) found at 0xfffffffffecf0000
kernel BUG at lba_pci.c:1262!
kernel BUG at lba_pci.c:1288!
lba range[2] : ignoring GMMIO (0xfffffffc04000000)
lba version TR3.0 (0x4) found at 0xfffffffffecf4000
kernel BUG at lba_pci.c:1262!
kernel BUG at lba_pci.c:1288!
lba range[2] : ignoring GMMIO (0xfffffffd04000000)
lba version TR3.0 (0x4) found at 0xfffffffffecf8000
kernel BUG at lba_pci.c:1262!
kernel BUG at lba_pci.c:1288!
lba range[2] : ignoring GMMIO (0xfffffffe04000000)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Performance monitoring counters enabled for Prelude W+ 540
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI
enabled
Redundant entry in serial pci_table.  Please send the output of
lspci -vv, this message (4156,4168,4156,4169)
and the manufacturer and name of serial board or modem board
to serial-pci-info@lists.sourceforge.net.
ttyS00 at port 0x0040 (irq = 132) is a 16550A
Redundant entry in serial pci_table.  Please send the output of
lspci -vv, this message (4156,4168,4156,4170)
and the manufacturer and name of serial board or modem board
to serial-pci-info@lists.sourceforge.net.
ttyS01 at port 0x0400 (irq = 133) is a 16550A
request_module[parport_lowlevel]: Root fs not mounted
lp: driver loaded but no devices found
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre6 (July 2, 2001)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
eth0: Digital DS21143 Tulip rev 65 at 0x80, 00:10:83:F5:85:5B, IRQ 128.
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 2, function 0
sym53c8xx: 53c875 detected
sym53c8xx: at PCI bus 0, device 2, function 1
sym53c8xx: 53c875 detected
sym53c8xx: at PCI bus 0, device 1, function 0
sym53c8xx: 53c895 detected
sym53c875-0: rev 0x14 on pci bus 0 device 2 function 0 irq 130
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-1: rev 0x14 on pci bus 0 device 2 function 1 irq 131
sym53c875-1: ID 7, Fast-20, Parity Checking
sym53c895-2: rev 0x1 on pci bus 0 device 1 function 0 irq 129
sym53c895-2: ID 7, Fast-40, Parity Checking
sym53c895-2: SCSI bus mode change from 80 to 80.
scsi0 : sym53c8xx-1.7.3c-20010512
scsi1 : sym53c8xx-1.7.3c-20010512
scsi2 : sym53c8xx-1.7.3c-20010512
  Vendor: SEAGATE   Model: ST39103LC         Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST39175LW         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi1, channel 0, id 6, lun 0
Attached scsi disk sdb at scsi2, channel 0, id 6, lun 0
sym53c875-1-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
SCSI device sda: 17783112 512-byte hdwr sectors (9105 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
sym53c895-2-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
SCSI device sdb: 17783112 512-byte hdwr sectors (9105 MB)
 sdb: unknown partition table
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 16384 buckets, 128Kbytes
TCP: Hash tables configured (established 262144 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Adding Swap: 249848k swap-space (priority -1)
eth0: Setting full-duplex based on MII#1 link partner capability of 41e1.





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Subject: Re: [parisc-linux] 0.93 installations on N-Class.,
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On Fri, Mar 15, 2002 at 10:40:50AM -0800, Gururaj Ananthateerta wrote:
> .93 installation woriking fine on n-class.

So if you compile a 64-bit, CONFIG_SMP=n kernel from head of CVS, does
that also work on your N class?

-- 
Revolutions do not require corporate support.



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From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
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Subject: [parisc-linux] EISA 100/10 add-on card causes kernel BUG
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Xref: news.gmane.org gmane.linux.ports.parisc:14355

A while ago I asked about support for the EISA 100/10 network cards. By 
enabling the HP100 driver the card gets detected as eth0.

During boot, at the time when the network interface is set up a kernel 
BUG is generated. Similar behavior with kernel version 2.4.18-pa0, too. 
What follows is the console output:

Linux version 2.4.18-pa5 (raffo@inca) (gcc version 3.0.2 20010829 
(prerelease)) #3 Sat Mar 16 00:29:45 EST 2002
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00003160 00000481 00000000 00000000 77b82c78 ffffffff 00000004 
0000000a 0000000a
vers  00000013
model 9000/715
Total Memory: 64 Mb
pagetable_init
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/sda3 
eisa_irq_edge=3,4,5,7,9,10,11,14,15  console=ttyS0 palo_kernel=0/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 74.75 BogoMIPS
Memory: 61500k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Searching for devices...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000 [0], versions 0x6, 0x0, 0x77
2. Scorpio Sr. Core BA (11) at 0xf082f000 [2], versions 0x19, 0x0, 0x70
3. Scorpio Sr. Core SCSI (10) at 0xf0825000 [2/0/1], versions 0x19, 0x0, 
0x71
4. Scorpio Sr. Core LAN (802.3) (10) at 0xf0826000 [2/0/2], versions 
0x19, 0x0, 0x72
5. Scorpio Sr. Core HIL (10) at 0xf0821000 [2/0/3], versions 0x19, 0x0, 0x73
6. Scorpio Sr. Core RS-232 (10) at 0xf0823000 [2/0/4], versions 0x19, 
0x0, 0x75
7. Scorpio Sr. Core RS-232 (10) at 0xf0822000 [2/0/5], versions 0x19, 
0x0, 0x75
8. Scorpio Sr. Core Centronics (10) at 0xf0824000 [2/0/6], versions 
0x19, 0x0, 0x74
9. Scorpio Sr. Audio (10) at 0xf1000000 [2/0/8], versions 0x19, 0x0, 0x7b
10. Scorpio Sr. EISA BA (11) at 0xfc000000 [4], versions 0x19, 0x0, 0x76
11. Scorpio Sr.(715/75) (0) at 0xfffbe000 [8], versions 0x316, 0x0, 0x4
12. Memory (1) at 0xfffbf000 [9], versions 0x27, 0x0, 0x9
CPU(s): 1 x PA7100 (PCX-T) at 75.000000 MHz
Asp version 1 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered
Mongoose EISA Adapter found at 0xfc000000
EISA EEPROM at 0xf0810400
Enumerating EISA bus
EISA slot 1: HWP1990 EISA IRQ 3 <4>IRQ 3 polarity configured twice (last 
to level)

POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
Journalled Block Device driver loaded
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
STI byte mode ROM at f4000000, hpa=f4000000
STI byte mode ROM, id 27f12392-40a00499, conforms to spec rev. 8.02
STI device: HPA1991AC19
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 27f12392, mmio: 0xf4100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ 
SERIAL_PCI enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Found HIL at 0xf0821000, IRQ 94
HIL: no keyboard present.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
hp100: eth0: Using (slow) programmed i/o mode.
hp100: eth0: HP J2577 at 0x1c38, IRQ 3, EISA bus, 128k SRAM (rx/tx 75%).
hp100: eth0: Adapter is attached to 10Mb/s network.
loop: loaded (max 8 devices)
Found i82596 at 0xf0826000, IRQ 87
82596.c: MAC of HP700 LAN read from EEPROM
eth1: Couldn't get consistent shared memory
eth1: 82596 at 0xf0826000, 08 00 09 87 89 28 IRQ 87.
82596.c $Revision: 1.29 $
SCSI subsystem driver Revision: 1.00
53c700: consistent memory allocation failed
53c700: Version 2.7 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0
scsi0 : LASI SCSI 53c700
   Vendor: DEC       Model: RZ26L    (C) DEC  Rev: 440C
   Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
scsi0: (6:0) Enabling Tag Command Queuing
SCSI device sda: 2050860 512-byte hdwr sectors (1050 MB)
Partition check:
  sda: sda1 sda2 sda3
Lasi Harmony Audio driver V0.9a, h/w id 20, rev. 0 at 0xf1000000, IRQ 82
sticonsole_init: searching for STI ROMs
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
    8regs     : 12246.800 MB/sec
    8regs_prefetch:    55.600 MB/sec
    32regs    :    56.800 MB/sec
    32regs_prefetch:    56.800 MB/sec
raid5: using function: 8regs (12246.800 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
NOT FREEING INITMEM (386k)
INIT: version 2.84 booting
Activating swap.
Adding Swap: 124800k swap-space (priority -1)
Checking root file system...
fsck 1.26 (3-Feb-2002)
/dev/sda3: clean, 37561/110656 files, 129875/220926 blocks
System time was Sat Mar 16 05:42:22 UTC 2002.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Sat Mar 16 05:42:35 UTC 2002.
Checking all file systems...
fsck 1.26 (3-Feb-2002)
Setting kernel variables.
Loading the saved-state of the serial devices...
Cannot set serial info: Address already in use
/dev/ttyS0 at 0x0000 (irq = 90) is a 16550A
Cannot set serial info: Address already in use
/dev/ttyS1 at 0x0000 (irq = 89) is a 16550A
Mounting local filesystems...
nothing was mounted
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces:

kernel BUG at printk.c:489!
Linux version 2.4.18-pa5 (raffo@inca) (gcc version 3.0.2 20010829 
(prerelease)) #3 Sat Mar 16 00:29:45 EST 2002
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00003160 00000481 00000000 00000000 77b82c78 ffffffff 00000004 
0000000a 0000000a
vers  00000013
model 9000/715
Total Memory: 64 Mb
pagetable_init
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/sda3 
eisa_irq_edge=3,4,5,7,9,10,11,14,15  console=ttyS0 palo_kernel=0/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 74.75 BogoMIPS
Memory: 61500k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Searching for devices...
Found devices:
1. Stinger Optional Graphics (10) at 0xf4000000 [0], versions 0x6, 0x0, 0x77
2. Scorpio Sr. Core BA (11) at 0xf082f000 [2], versions 0x19, 0x0, 0x70
3. Scorpio Sr. Core SCSI (10) at 0xf0825000 [2/0/1], versions 0x19, 0x0, 
0x71
4. Scorpio Sr. Core LAN (802.3) (10) at 0xf0826000 [2/0/2], versions 
0x19, 0x0, 0x72
5. Scorpio Sr. Core HIL (10) at 0xf0821000 [2/0/3], versions 0x19, 0x0, 0x73
6. Scorpio Sr. Core RS-232 (10) at 0xf0823000 [2/0/4], versions 0x19, 
0x0, 0x75
7. Scorpio Sr. Core RS-232 (10) at 0xf0822000 [2/0/5], versions 0x19, 
0x0, 0x75
8. Scorpio Sr. Core Centronics (10) at 0xf0824000 [2/0/6], versions 
0x19, 0x0, 0x74
9. Scorpio Sr. Audio (10) at 0xf1000000 [2/0/8], versions 0x19, 0x0, 0x7b
10. Scorpio Sr. EISA BA (11) at 0xfc000000 [4], versions 0x19, 0x0, 0x76
11. Scorpio Sr.(715/75) (0) at 0xfffbe000 [8], versions 0x316, 0x0, 0x4
12. Memory (1) at 0xfffbf000 [9], versions 0x27, 0x0, 0x9
CPU(s): 1 x PA7100 (PCX-T) at 75.000000 MHz
Asp version 1 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered
Mongoose EISA Adapter found at 0xfc000000
EISA EEPROM at 0xf0810400
Enumerating EISA bus
EISA slot 1: HWP1990 EISA IRQ 3 <4>IRQ 3 polarity configured twice (last 
to level)

POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
Journalled Block Device driver loaded
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
STI byte mode ROM at f4000000, hpa=f4000000
STI byte mode ROM, id 27f12392-40a00499, conforms to spec rev. 8.02
STI device: HPA1991AC19
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 27f12392, mmio: 0xf4100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ 
SERIAL_PCI enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Found HIL at 0xf0821000, IRQ 94
HIL: no keyboard present.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
hp100: eth0: Using (slow) programmed i/o mode.
hp100: eth0: HP J2577 at 0x1c38, IRQ 3, EISA bus, 128k SRAM (rx/tx 75%).
hp100: eth0: Adapter is attached to 10Mb/s network.
loop: loaded (max 8 devices)
Found i82596 at 0xf0826000, IRQ 87
82596.c: MAC of HP700 LAN read from EEPROM
eth1: Couldn't get consistent shared memory
eth1: 82596 at 0xf0826000, 08 00 09 87 89 28 IRQ 87.
82596.c $Revision: 1.29 $
SCSI subsystem driver Revision: 1.00
53c700: consistent memory allocation failed
53c700: Version 2.7 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0
scsi0 : LASI SCSI 53c700
   Vendor: DEC       Model: RZ26L    (C) DEC  Rev: 440C
   Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
scsi0: (6:0) Enabling Tag Command Queuing
SCSI device sda: 2050860 512-byte hdwr sectors (1050 MB)
Partition check:
  sda: sda1 sda2 sda3
Lasi Harmony Audio driver V0.9a, h/w id 20, rev. 0 at 0xf1000000, IRQ 82
sticonsole_init: searching for STI ROMs
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
    8regs     : 12246.800 MB/sec
    8regs_prefetch:    55.600 MB/sec
    32regs    :    56.800 MB/sec
    32regs_prefetch:    56.800 MB/sec
raid5: using function: 8regs (12246.800 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
NOT FREEING INITMEM (386k)
Adding Swap: 124800k swap-space (priority -1)
kernel BUG at printk.c:489!
kernel BUG at printk.c:489!
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x24000000 to 0x24000240:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

[a lot of these ...]

Dumping Stack from 0x202f8000 to 0x202f8b40:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x202f8000 to 0x202f8f80:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x202f8000 to 0x202f93c0:
WARNING! Stack pointer and cr30 do not correspond!
WARNING! Stack pointer and cr30 do not correspond!
WARNING! Stack pointer and cr30 do not correspond!
WARNING! Stack pointer and cr30 do not correspond!
WARNING! Stack pointer and cr30 do not correspond!
WARNING! Stack pointer and cr30 do not correspond!
WARNING! Stack pointer and cr30 do not correspond!
WARNING! Stack pointer and cr30 do not correspond!
WARNING! Stack pointer and cr30 do not correspond!
WARNING! Stack pointer and cr30 do not correspond!


-- 
      Rafael




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To: Matt Taggart <taggart@carmen.fc.hp.com>
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On Fri, 2002-03-15 at 11:31, Matt Taggart wrote:
> 
> =?Windows-1252?Q?Onnainty_Jer=F3nimo?= writes...
> 
> > Tengo instalado el DTCMANAGER en un HP-UX, en el PA-Linux existe este
> > producto?
> 
> Not currently. I think this would require both support for the DTC
> devices and porting the DTCMANAGER software.

I currently user a couple of DTC 16RX for my serial console solutions.
I am not sure what you are trying to accomplish, but I configured the
DTCs using the console and put the software bits on my tftpserver that I
use to server up parisc-linux kernel images from.  This has worked
flawless for me over the last couple of years and has been an excellent
console solution for my usage.  [Note: both DTC retrieve the same bits
from my tftp server, so no custom configuration appears to be stored in
those binaries].

> Do you just want to be able to access the devices? This might be possible
> if someone wrote the right drivers.
> 
> Or do you want to use the DTCMANAGER software too? I don't think the HP
> people in charge of this product plan to port it. You could ask
> them though. One possiblity is to try and run it under PA-Linux using
> the HP-UX binary support. I suspect you'll need the yet-to-be-implemented
> signals stuff though, a bunch of HP-UX Libraries, as well as
> the hardware support mentioned above(and maybe some sort of conversion
> layer depending on how it wants to access the devices).

I do not use the DTCMANAGER software under linux ... I configured all
the ports on the DTC and when I want to add another remote console I
just plug it in and telnet to the DTC port# (I portscanned the DTC
to get the port numbers) and vola, I have the serial console to the
system.  [Note: I am not running HP-UX anywhere in my house, so this
solutions is pure i386 and parisc-linux.


Hope that help, but not sure if this is the information you are looking
for.

Thanks,

- Ryan

> Short answer: while possible, I don't think it will ever happen. Don't
> let that stop you from working on it though :)
> 
> -- 
> Matt Taggart        Linux Development Lab
> taggart@fc.hp.com   HP Linux Systems Operation
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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Subject: [parisc-linux] code to handle disk partitions.
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where is this function
get_all_partitions()

can it be still used.

I am looking partition handling functions,  I got some stuff in
/drivers/block/blkpg.c






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On Fri, Mar 15, 2002 at 10:28:29PM -0800, Gururaj Ananthateerta wrote:
> 
> where is this function
> get_all_partitions()
> 
> can it be still used.

my impression is this function has never existed.  it certainly has not
been removed during the 2.4 kernel series.

> I am looking partition handling functions,  I got some stuff in
> /drivers/block/blkpg.c

I think you probably want to start looking in fs/partitions/check.c,
function grok_partitions().

-- 
Revolutions do not require corporate support.



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"Rafael E. Herrera" wrote:
...
> WARNING! Stack pointer and cr30 do not correspond!

A few times, this error (it's not a warning) meant the 
driver was attempting to access user space data directly.
This is wrong and unfortunately it *usually* (but not always)
works on x86 arch. The right way to access user space data
is via copy_from_user() or write asm code that explicitly
references Space Registers (eg sr3).

grant



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On Sat, Mar 16, 2002 at 11:42:31AM -0700, Grant Grundler wrote:
> works on x86 arch. The right way to access user space data
> is via copy_from_user() or write asm code that explicitly
> references Space Registers (eg sr3).

Let me just explicitly discourage doing this (or, if you must, document
it in Documentation/parisc/registers).  Use of sr3 to access userspace
is subject to change and it'd be nice not to have to check every driver
for use.  It's bad enough that sba & ccio use sr1, but at least we found
those :-)

I cant imagine a good reason for using sr3.  copy_{to,from}_user are
portable and obvious.

-- 
Revolutions do not require corporate support.



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Matthew Wilcox wrote:
> Let me just explicitly discourage doing this (or, if you must, document
> it in Documentation/parisc/registers).  Use of sr3 to access userspace
> is subject to change and it'd be nice not to have to check every driver
> for use. 

Yeah - you are right

> It's bad enough that sba & ccio use sr1, but at least we found
> those :-)

oh - I forgot about those for filling the IO pdir entries...
that need to change in order to support zero copy?

We somehow need to pass the spaceID of the userspace buffer
to dma code if we want DMA to be cache coherent.
I don't have any good ideas for this.

> I cant imagine a good reason for using sr3.  copy_{to,from}_user are
> portable and obvious.

agreed.

thanks,
grant

--9B420482D.1016343457/dsl2.external.hp.com--



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Hello, I recently aquired a HP C180XP here is the
output from cat /proc/cpuinfo

processor	: 0
cpu family	: PA-RISC 2.0
cpu		: PA8000 (PCX-U)
cpu MHz		: 180.000000
model		: 9000/780/C180
model name	: Raven U 180 (9000/780/C180)
hversion	: 0x000059c0
sversion	: 0x00000481
I-cache		: 1024 KB
D-cache		: 1024 KB (WB)
ITLB entries	: 96
DTLB entries	: 96 - shared with ITLB
BTLB fixed	: max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.	: 0 instruction, 0 data (16 combined)
BTLB var-entr.	: 0 instruction, 0 data (0 combined)
bogomips	: 358.80
software id	: 2001678209

I am wondering if this system can run a 64 bit kernel?
 Can anyone tell me if it can and how do I get it
booted up in 64 bit mode if it can?

Thank you,
Timothy Robb

__________________________________________________
Do You Yahoo!?
Yahoo! Sports - live college hoops coverage
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On Sat, Mar 16, 2002 at 10:38:38PM -0700, Grant Grundler wrote:
> oh - I forgot about those for filling the IO pdir entries...
> that need to change in order to support zero copy?
> 
> We somehow need to pass the spaceID of the userspace buffer
> to dma code if we want DMA to be cache coherent.
> I don't have any good ideas for this.

My understanding is that DMA to userspace is to pages in the page cache
only.  As such, the normal mechanisms for dcache coherency should be used.
That is, DMA to a kernel view of the page and call flush_dcache_page
after touching it.  My proposed scheme for kmap/kunmap implementation
would make flush_dcache_page a no-op, since the kernel would have a view
of the page which is automatically cache coherent with userspace's view.

-- 
Revolutions do not require corporate support.



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On Sun, Mar 17, 2002 at 12:40:54AM -0800, Tim Robb wrote:
> Hello, I recently aquired a HP C180XP here is the
> I am wondering if this system can run a 64 bit kernel?
>  Can anyone tell me if it can and how do I get it
> booted up in 64 bit mode if it can?

Let's get a FAQ entry for this:

15. Can I run a 64-bit kernel on my machine?

The answer to this is generally determined by the firmware your machine
runs.  Workstations up to and including the J2240 and C360 only have
32-bit firmware.  The normal 64-bit kernel will not run on these systems.
The A500 and L2000 server only have 64-bit firmware, and these machines
must run a 64-bit kernel.  The C3000 and similar workstations have both
32-bit and 64-bit firmware and can therefore run either kernel.

A more important question is: why do you want to run a 64-bit kernel?
Since we do not yet support 64-bit userspace, there is no advantage
to be gained running a 64-bit kernel on a machine with less than 3.5GB
of memory.

For those who do want to test 64-bit kernels on older machines, there is a
special configuration option `32-bit PDC' which will allow a 64-bit kernel
to work with 32-bit firmware.  We cannot enable this option by default
as the resulting kernel will not work on machines with 64-bit firmware.

-- 
Revolutions do not require corporate support.



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Matthew Wilcox wrote:
> My understanding is that DMA to userspace is to pages in the page cache
> only.

NICs use the page cache? or just for ZC?
block IO certainly uses the page cache.

> As such, the normal mechanisms for dcache coherency should be used.
> That is, DMA to a kernel view of the page and call flush_dcache_page
> after touching it.

For page cache, ok. Then ccio/sba implicitly use whatever SR the
kernel is supposed to use and we don't need to pass the parameter.
If NIC's use page cache for ZC, that would make life simple.

> My proposed scheme for kmap/kunmap implementation
> would make flush_dcache_page a no-op, since the kernel would have a view
> of the page which is automatically cache coherent with userspace's view.

I'm liking that idea alot.
I've really never been comfortable with the two views not being coherent
since it will expose more kernel bugs that other arches don't see.


thanks,
grant



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Is there a list somewhere of which EISA cards are supported?  I need
to add 100baseT capabilities to a 755, and figured that was the way to
go
thanks
Aaron
-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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Hi,=20

I made an installation with the 0.9.3 iso on 3 different types of parisc =
systems : 715/33,720/50 and 712/80.
As I haven't much time to do so, I decide to use only tasksel, and not =
dselect.
The pb was the same under 715 and 720 : no X, but it is ok with the =
712...
(of course, I've modified the XF86Config for all, using fbdev as driver, =
and using a serial mouse and a hil keyboard for the 715 and 720 with the =
good keymap...)
What could be the problem? Are 715 and 720 working under X ??

best regards,=20
jl.


------=_NextPart_000_001D_01C1CE6C.CD9D1C20
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	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi, </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I made an installation with the 0.9.3 =
iso on 3=20
different types of parisc systems : 715/33,720/50 and =
712/80.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>As I haven't much time to do so, I =
decide to use=20
only tasksel, and not dselect.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>The pb was the same under 715 and 720 : =
no X, but=20
it is ok with the 712...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>(of course, I've modified the =
XF86Config for all,=20
using fbdev as driver, and using a serial mouse and a hil keyboard for =
the 715=20
and 720 with the good keymap...)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>What could be the problem? Are 715 and =
720 working=20
under X ??</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>best regards, </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>jl.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV></BODY></HTML>

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Subject: Re: [parisc-linux] pb with iso 0.9.3 ?
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On Mon, Mar 18, 2002 at 11:05:24AM +0100, Jean-Louis Abat wrote:
> Hi, 
> 
> I made an installation with the 0.9.3 iso on 3 different types of
> parisc systems : 715/33,720/50 and 712/80. As I haven't much time to
> do so, I decide to use only tasksel, and not dselect. The pb was the
> same under 715 and 720 : no X, but it is ok with the 712... (of
> course, I've modified the XF86Config for all, using fbdev as driver,
> and using a serial mouse and a hil keyboard for the 715 and 720 with
> the good keymap...) What could be the problem? Are 715 and 720
> working under X ??

Yes, definitely. X is fine on my 712/80. The config was posted here,
check the Archives.


-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why is Linux so stable? 
Because Penguins can't fly.




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Oups!
I forgot to tell more about my pb...
no X with 715 and 720 is not enough ;)

In fact, no device is detected, whatever driver I specify, including =
fbdev, which is supposed to work, or am I wrong?
  ----- Original Message -----=20
  From: Jean-Louis Abat=20
  To: parisc-linux@lists.parisc-linux.org=20
  Sent: Monday, March 18, 2002 11:05 AM
  Subject: [parisc-linux] pb with iso 0.9.3 ?


  Hi,=20

  I made an installation with the 0.9.3 iso on 3 different types of =
parisc systems : 715/33,720/50 and 712/80.
  As I haven't much time to do so, I decide to use only tasksel, and not =
dselect.
  The pb was the same under 715 and 720 : no X, but it is ok with the =
712...
  (of course, I've modified the XF86Config for all, using fbdev as =
driver, and using a serial mouse and a hil keyboard for the 715 and 720 =
with the good keymap...)
  What could be the problem? Are 715 and 720 working under X ??

  best regards,=20
  jl.


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<DIV><FONT face=3DArial size=3D2>Oups!</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I forgot to tell more about my =
pb...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>no X with 715 and 720 is not enough =
;)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>In fact, no device is detected,=20
whatever&nbsp;driver I specify, including fbdev, which is supposed to =
work, or=20
am I wrong?</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3Djl_abat@hotmail.com =
href=3D"mailto:jl_abat@hotmail.com">Jean-Louis=20
  Abat</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  title=3Dparisc-linux@lists.parisc-linux.org=20
  =
href=3D"mailto:parisc-linux@lists.parisc-linux.org">parisc-linux@lists.pa=
risc-linux.org</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Monday, March 18, 2002 =
11:05=20
  AM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [parisc-linux] pb with =
iso 0.9.3=20
  ?</DIV>
  <DIV><BR></DIV>
  <DIV><FONT face=3DArial size=3D2>Hi, </FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>I made an installation with the 0.9.3 =
iso on 3=20
  different types of parisc systems : 715/33,720/50 and =
712/80.</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2>As I haven't much time to do so, I =
decide to use=20
  only tasksel, and not dselect.</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2>The pb was the same under 715 and 720 =
: no X, but=20
  it is ok with the 712...</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2>(of course, I've modified the =
XF86Config for all,=20
  using fbdev as driver, and using a serial mouse and a hil keyboard for =
the 715=20
  and 720 with the good keymap...)</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2>What could be the problem? Are 715 =
and 720=20
  working under X ??</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>best regards, </FONT></DIV>
  <DIV><FONT face=3DArial size=3D2>jl.</FONT></DIV>
  <DIV><FONT face=3DArial =
size=3D2></FONT>&nbsp;</DIV></BLOCKQUOTE></BODY></HTML>

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Subject: Re: [parisc-linux] pb with iso 0.9.3 ?
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Thank you for your answer, but I know X is fine with 712 ;)
(it works very well, including gnome, kde, enlightenment....)
I only have a problem with 715 and 720...
I use the proper XF86Config posted here, and available on the ftp (with the
proper keymap for hil keyboards...)
The problem is no device is detected with 715 and 720, when a specify fbdev
as driver...


----- Original Message -----
From: "Ralf Hildebrandt" <Ralf.Hildebrandt@charite.de>
To: "Jean-Louis Abat" <jl_abat@hotmail.com>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Monday, March 18, 2002 11:12 AM
Subject: Re: [parisc-linux] pb with iso 0.9.3 ?


> On Mon, Mar 18, 2002 at 11:05:24AM +0100, Jean-Louis Abat wrote:
> > Hi,
> >
> > I made an installation with the 0.9.3 iso on 3 different types of
> > parisc systems : 715/33,720/50 and 712/80. As I haven't much time to
> > do so, I decide to use only tasksel, and not dselect. The pb was the
> > same under 715 and 720 : no X, but it is ok with the 712... (of
> > course, I've modified the XF86Config for all, using fbdev as driver,
> > and using a serial mouse and a hil keyboard for the 715 and 720 with
> > the good keymap...) What could be the problem? Are 715 and 720
> > working under X ??
>
> Yes, definitely. X is fine on my 712/80. The config was posted here,
> check the Archives.
>
>
> --
> Ralf Hildebrandt (Im Auftrag des Referat V A)
Ralf.Hildebrandt@charite.de
> Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450
570-155
> Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450
570-916
> Why is Linux so stable?
> Because Penguins can't fly.
>
>



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On Mon, Mar 18, 2002 at 11:25:45AM +0100, Jean-Louis Abat wrote:
> Thank you for your answer, but I know X is fine with 712 ;)
> (it works very well, including gnome, kde, enlightenment....)
> I only have a problem with 715 and 720...
> I use the proper XF86Config posted here, and available on the ftp (with the
> proper keymap for hil keyboards...)
> The problem is no device is detected with 715 and 720, when a specify fbdev
> as driver...

Do you get the penguin logo top left of the screen during boot?
If not, then it is a kernel problem, which might possibly be solved in
more recent kernels.  You could try one from
ftp://ftp.parisc-linux.org/kernels/32/
for example.

Otherwise, check your  dmesg output to see what screen resolution and
depth fb is reporting, and make sure you have that (and only that)
specified in XF86-Config.

Failing that, post your dmsg output here.

Richard




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Subject: Re: [parisc-linux] pb with iso 0.9.3 ?
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Thanks a lot!!
I didn't see the logo at boot time .
I was just a little surprised because with my 712, I always see it, but that
was the first time I install a 715 and 720, so it could have been different
with these systems...
I immediatly try another kernel !!

best regards,

jl.

----- Original Message -----
From: "Richard Hirst" <rhirst@linuxcare.com>
To: "Jean-Louis Abat" <jl_abat@hotmail.com>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Monday, March 18, 2002 11:41 AM
Subject: Re: [parisc-linux] pb with iso 0.9.3 ?


> On Mon, Mar 18, 2002 at 11:25:45AM +0100, Jean-Louis Abat wrote:
> > Thank you for your answer, but I know X is fine with 712 ;)
> > (it works very well, including gnome, kde, enlightenment....)
> > I only have a problem with 715 and 720...
> > I use the proper XF86Config posted here, and available on the ftp (with
the
> > proper keymap for hil keyboards...)
> > The problem is no device is detected with 715 and 720, when a specify
fbdev
> > as driver...
>
> Do you get the penguin logo top left of the screen during boot?
> If not, then it is a kernel problem, which might possibly be solved in
> more recent kernels.  You could try one from
> ftp://ftp.parisc-linux.org/kernels/32/
> for example.
>
> Otherwise, check your  dmesg output to see what screen resolution and
> depth fb is reporting, and make sure you have that (and only that)
> specified in XF86-Config.
>
> Failing that, post your dmsg output here.
>
> Richard
>
>



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Thanks again!
That really was a kernel problem, it now works fine with kernel 2.4.18 !
(the kernel with iso 0.9.3 is 2.4.9 and doesn't seem to be good for 715 and
720 (i guess also 735), but works fine with 712...)

jl.
----- Original Message -----
From: "Richard Hirst" <rhirst@linuxcare.com>
To: "Jean-Louis Abat" <jl_abat@hotmail.com>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Monday, March 18, 2002 11:41 AM
Subject: Re: [parisc-linux] pb with iso 0.9.3 ?


> On Mon, Mar 18, 2002 at 11:25:45AM +0100, Jean-Louis Abat wrote:
> > Thank you for your answer, but I know X is fine with 712 ;)
> > (it works very well, including gnome, kde, enlightenment....)
> > I only have a problem with 715 and 720...
> > I use the proper XF86Config posted here, and available on the ftp (with
the
> > proper keymap for hil keyboards...)
> > The problem is no device is detected with 715 and 720, when a specify
fbdev
> > as driver...
>
> Do you get the penguin logo top left of the screen during boot?
> If not, then it is a kernel problem, which might possibly be solved in
> more recent kernels.  You could try one from
> ftp://ftp.parisc-linux.org/kernels/32/
> for example.
>
> Otherwise, check your  dmesg output to see what screen resolution and
> depth fb is reporting, and make sure you have that (and only that)
> specified in XF86-Config.
>
> Failing that, post your dmsg output here.
>
> Richard
>
>



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Subject: [parisc-linux] STI without PCI
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Hi Matt,

I test your patch against k-2.4.18-pa5 (co this morning)

I uncheck CONFIG_PCI in my .config file then make menuconfig and make dep ; make
cklean ; make vmlinux.

It compiles successfully (with apt-get dist-upgrade this morning).

BUT:
(or 'b' to boot with this command line)? b

Command line for kernel: 'root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102
palo_kernel=3/boot/vmlinux-t'
Selected kernel: /boot/vmlinux-t from partition 3
...
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
STI word mode ROM at f0011000, hpa=f8000000
STI word mode ROM, id 2d08c0a7-9a02587, conforms to spec rev. 8.07
STI device: INTERNAL_EG_1280
Console: switching to colour frame buffer device 160x64
...

Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on 08:03

I hope it will help you,
    Joel

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On Mon, Mar 18, 2002 at 04:55:19PM +0100, joel.soete@freebel.net wrote:
> I uncheck CONFIG_PCI in my .config file then make menuconfig and make dep ; make
> cklean ; make vmlinux.
> 
> It compiles successfully (with apt-get dist-upgrade this morning).

thanks.

> BUT:
> (or 'b' to boot with this command line)? b
> 
> Command line for kernel: 'root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102
> palo_kernel=3/boot/vmlinux-t'
> Selected kernel: /boot/vmlinux-t from partition 3
> ...
> parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
> STI word mode ROM at f0011000, hpa=f8000000
> STI word mode ROM, id 2d08c0a7-9a02587, conforms to spec rev. 8.07
> STI device: INTERNAL_EG_1280
> Console: switching to colour frame buffer device 160x64
> ...
> 
> Please append a correct "root=" boot option
> Kernel panic: VFS: Unable to mount root fs on 08:03

umm.. could you show the portions of your boot log relating to scsi or sda?

-- 
Revolutions do not require corporate support.



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Quoting Matthew Wilcox <willy@debian.org>:

> On Mon, Mar 18, 2002 at 04:55:19PM +0100, joel.soete@freebel.net wrote:
> > I uncheck CONFIG_PCI in my .config file then make menuconfig and make
> dep ; make
> > cklean ; make vmlinux.
> > 
> > It compiles successfully (with apt-get dist-upgrade this morning).
> 
> thanks.
> 
> umm.. could you show the portions of your boot log relating to scsi or
> sda?
> 

For sure (I would have to add, sorry):
SCSI subsystem driver Revision: 1.00
53c700: Version 2.7 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2 
scsi0 : LASI SCSI 53c700
scsi0: (3:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST32151N          Rev: HP02
  Type:   Direct-Access                      ANSI SCSI revision: 02
scsi0: (4:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST34371N          Rev: HPM2
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 3, lun 0
Attached scsi disk sdb at scsi0, channel 0, id 4, lun 0
scsi0: (3:0) Enabling Tag Command Queuing
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
Partition check:
 sda: unknown partition table
scsi0: (4:0) Enabling Tag Command Queuing
SCSI device sdb: 8388314 512-byte hdwr sectors (4295 MB)
 sdb: unknown partition table

(well it works with k-2.4.18-pa4 from last this March 12 and I just restart to
compile this new pa5 with previous .config to compare)

    Joel

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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] STI without PCI
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On Mon, Mar 18, 2002 at 05:19:11PM +0100, joel.soete@freebel.net wrote:
> SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
> Partition check:
>  sda: unknown partition table
> scsi0: (4:0) Enabling Tag Command Queuing
> SCSI device sdb: 8388314 512-byte hdwr sectors (4295 MB)
>  sdb: unknown partition table
> 
> (well it works with k-2.4.18-pa4 from last this March 12 and I just restart to
> compile this new pa5 with previous .config to compare)

That's very strange.  Are you sure you have CONFIG_MSDOS_PARTITION=y in
your .config?  Otherwise, I gess there could be a problem with reading
the partition table off the disc... but that seems unlikely.

-- 
Revolutions do not require corporate support.



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Quoting Matthew Wilcox <willy@debian.org>:

...
> 
> That's very strange.  Are you sure you have CONFIG_MSDOS_PARTITION=y in
> your .config?  Otherwise, I gess there could be a problem with reading
> the partition table off the disc... but that seems unlikely.

It was on the original at least (but i could not check, right now, if uncheck of
CONFIG_PCI did not remove it by make menuconfig; I can check as soon as my last
build will be finished).

Joel
> 
> -- 
> Revolutions do not require corporate support.
> 
> 


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Subject: Re: [parisc-linux] STI without PCI
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Quoting joel.soete@freebel.net:

> Quoting Matthew Wilcox <willy@debian.org>:
> 
> ...
> > 
> > That's very strange.  Are you sure you have CONFIG_MSDOS_PARTITION=y
> in
> > your .config?  Otherwise, I gess there could be a problem with
> reading
> > the partition table off the disc... but that seems unlikely.
> 
> It was on the original at least (but i could not check, right now, if
> uncheck of
> CONFIG_PCI did not remove it by make menuconfig; I can check as soon as
> my last
> build will be finished).

No it did not uncheck CONFIG_MSDOS_PARTITION

> 
> Joel
> > 
> > -- 
> > Revolutions do not require corporate support.
> > 
> > 
> 
> 
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> 
> 


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Subject: [parisc-linux] ftp Client.
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compile and use this ftp client

http://www.NcFTP.com

working fine for me.





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Subject: [parisc-linux] simple_strtol?
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Hi.

I'm trying to get FiST
(http://www.cs.columbia.edu/~ezk/research/fist/) working on my 712.
I've got kernel version 2.4.17 [ uname -a = Linux rabbit 2.4.17 #2 Sat
Mar 16 08:27:47 PST 2002 parisc unknown ].

I'm able to compile a kernel module that includes simple_strtol, but
when I insmod it, I get :

+ insmod ./rot13fs.o
./rot13fs.o: unresolved symbol simple_strtol
./rot13fs.o:
Hint: You are trying to load a module without a GPL compatible license
      and it has unresolved symbols.  Contact the module supplier for
      assistance, only they can help you.


What am I doing wrong?

Thanks,

James

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I am using the following code to write a page to the swap space
using the iodc calls.

The IODC call for writing a boot device in blocks is
ENTRY_IO  with a subfunction BOOT_BLK_DEV_WRITE  = 17.

The call never returns.
Is there anythin I need to do more...


-------------------------------PARTITION TABLE Start -----------------
This is the partition of my disk.

Disk /dev/sda: 67 heads, 62 sectors, 1009 cylinders
Units = sectors of 1 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sda1            62     33231     16585   f0  Linux/PA-RISC boot
/dev/sda2         33232    531711    249240   82  Linux swap
/dev/sda3        531712   1030191    249240   83  Linux
/dev/sda4       1030192   4191385   1580597   83  Linux
-------------------------------------------PARTITION TABLE End-----------------

-------------------------CALL to Firmware.c-----------------------------
I am calling a pdc_iodc_bootout() as below.

err = pdc_iodc_bootout((unsigned long)17014784, dump_page_buf,
                                1, &count);

17014784  is the start of the swap space.
                     I got this number by doing this.
Start sector of the swap partition * 512
33232 * 512 = 17014784


-------------------------------------------------------------END calling
-------------


---------------------------------------Call to
IODC------------------------------
This is the call to IODC

int
pdc_iodc_bootout(unsigned devaddr, char *memaddr, unsigned size,
                 unsigned *count)
{
    int r;

    static int __attribute__((aligned(8)))   iodc_retbuf[32];
    static char __attribute__((aligned(64))) iodc_dbuf[4096];
    memcpy(iodc_dbuf, memaddr, size);

    if(!(PAGE0->mem_boot.iodc_io)) {
        return -1;
    }

    r = real32_call(PAGE0->mem_boot.iodc_io,
                    (unsigned long)PAGE0->mem_boot.hpa,
ENTRY_IO_BLK_BOOTOUT,
                    PAGE0->mem_boot.spa, __pa(PAGE0->mem_boot.dp.layers),
                    __pa(iodc_retbuf), devaddr, __pa(iodc_dbuf), size,
size);
    memcpy(count, iodc_retbuf, sizeof(*count));

    if (r == 3) /* EOF */
    {
        printk("pdc_iodc_bootin:EOF\n");
        return 0;                       /* count = 0 at EOF */
    }
    else if (r >= 0)
    {
        convert_to_wide(pdc_result);
        return pdc_result[0];           /* count */
    }
    return r;                           /* r < 0; error */
}





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Subject: Re: [parisc-linux] simple_strtol?
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On Mon, Mar 18, 2002 at 08:12:58PM -0800, James E. Pace wrote:
> 
> Hi.
> 
> I'm trying to get FiST
> (http://www.cs.columbia.edu/~ezk/research/fist/) working on my 712.
> I've got kernel version 2.4.17 [ uname -a = Linux rabbit 2.4.17 #2 Sat
> Mar 16 08:27:47 PST 2002 parisc unknown ].
> 
> I'm able to compile a kernel module that includes simple_strtol, but
> when I insmod it, I get :
> 
> + insmod ./rot13fs.o
> ./rot13fs.o: unresolved symbol simple_strtol
> ./rot13fs.o:
> Hint: You are trying to load a module without a GPL compatible license
>       and it has unresolved symbols.  Contact the module supplier for
>       assistance, only they can help you.
> 
> 
> What am I doing wrong?

You need to export the symbol from the kernel for use in modules.  Try
adding

EXPORT_SYMBOL(simple_strtol);

to arch/parisc/kernel/parisc_ksyms.c - maybe with an appropriate
#include for the prototype.

Richard




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On Mon, Mar 18, 2002 at 03:31:48PM -0800, Gururaj Ananthateerta wrote:
> compile and use this ftp client
> 
> http://www.NcFTP.com
> 
> working fine for me.

Or, more easily, "apt-get install ncftp".  The joys of a distro where
_everything_ is packaged :-)

-- 
Revolutions do not require corporate support.



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From: "Kurc, Marcin A." <makurc@cooperstandard.com>
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Subject: [parisc-linux] fb support
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Hi,
I'm trying to set up a framebuffer.
I have the framebuffer support compiled into the kernel
[*]   Generic STI frame buffer device support
[*] STI console

however, when I try to run fbset it says
open /dev/fb0: No such device

What did I miss? 
thanks

Marcin Kurc
 



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I had a really great idea - Use LINUX to install a HP-UX bootimage (and 
Solaris and IRIX and AIX and . . .). Theoretically you can boot from a 
LINUX (x86) server via tftp (stateless protocol), and then lay down an 
arbitrary image on the boot drive (also the CD install procedure would 
be the same for HPUX, Solaris, etc.). I knew that HP would be the 
toughest to get this working because of its logical volumes and "soft" 
partitions - and I was right.

   1.  I tried using sistina.com's LVM to try to mount a HPUX volume -
      and found out after testing (and reading from this list) that the
      two LVMs are NOT the same, nor even similar - except for the
      executable names. 
   2. I also tried mounting a HPUX full-disk partition, and palinux
      GRONKED and couldn't even recognize that the disk had a partition.
   3. I tried loading the HPUX executables for vgscan, vg-pv-lv
      whatever, to see if they would work. No dice, if they were
      dynamically linked, I might be able to load the corresponding
      library to get them to work - but alas, they are statically
      linked. I get mmap failures when I try to use them.
   4. The "reverse" of these procedures (mounting the palinux partitions
      under HPUX) yielded no successes either.

Is there a way to do this? Has anyone had success in mounting HPUX 
volumes/partitions? (JFS or HFS). Is there a plan to make this work?

It would be really nice to be able to replace IgniteUX, Jumpstart, 
RoboInst and our home-brew PC net installer (plus all the CD installs) 
with a single, open-source product. I would even put it on SourceForge!

--
Chris Rampson
UNIX Server Specialist

--------------010301030109000208080802
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit

<html>
<head>
</head>
<body>
I had a really great idea - Use LINUX to install a HP-UX bootimage (and Solaris
and IRIX and AIX and . . .). Theoretically you can boot from a LINUX (x86)
server via tftp (stateless protocol), and then lay down an arbitrary image
on the boot drive (also the CD install procedure would be the same for HPUX,
Solaris, etc.). I knew that HP would be the toughest to get this working
because of its logical volumes and "soft" partitions - and I was right.<br>
<ol>
  <li>&nbsp;I tried using sistina.com's LVM to try to mount a HPUX volume - and
found out after testing (and reading from this list) that the two LVMs are
NOT the same, nor even similar - except for the executable names.&nbsp;</li>
  <li>I also tried mounting a HPUX full-disk partition, and palinux GRONKED
and couldn't even recognize that the disk had a partition.</li>
  <li>I tried loading the HPUX executables for vgscan, vg-pv-lv whatever,
to see if they would work. No dice, if they were dynamically linked, I might
be able to load the corresponding library to get them to work - but alas,
they are statically linked. I get mmap failures when I try to use them.</li>
  <li>The "reverse" of these procedures (mounting the palinux partitions
under HPUX) yielded no successes either.</li>
</ol>
Is there a way to do this? Has anyone had success in mounting HPUX volumes/partitions?
(JFS or HFS). Is there a plan to make this work?<br>
<br>
It would be really nice to be able to replace IgniteUX, Jumpstart, RoboInst
and our home-brew PC net installer (plus all the CD installs) with a single,
open-source product. I would even put it on SourceForge!<br>
<br>
--<br>
Chris Rampson<br>
UNIX Server Specialist<br>
</body>
</html>

--------------010301030109000208080802--




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>>>>> "Chris" == Chris Rampson <crampson@ford.com> writes:

Chris> 1. I tried using sistina.com's LVM to try to mount a HPUX
Chris>    volume - and found out after testing (and reading from this
Chris>    list) that the two LVMs are NOT the same, nor even similar -
Chris>    except for the executable names.

Linux LVM is modelled after HP/UX'. But they don't share a common
codebase.


Chris> 2. I also tried mounting a HPUX full-disk partition, and
Chris>    palinux GRONKED and couldn't even recognize that the disk
Chris>    had a partition.

Huhm.  Odd.  That used to work.


Chris> 3. I tried loading the HPUX executables for vgscan, vg-pv-lv
Chris>    whatever, to see if they would work. No dice, if they were
Chris>    dynamically linked, I might be able to load the
Chris>    corresponding library to get them to work - but alas, they
Chris>    are statically linked. I get mmap failures when I try to use
Chris>    them.

The userland utilities are not going to help you without being able to
talk to the HP/UX kernel LVM driver.


Chris> Is there a way to do this? Has anyone had success in mounting
Chris> HPUX volumes/partitions? (JFS or HFS). Is there a plan to make
Chris> this work?

We can read HFS filesystems.  JFS (aka VxFS) may work now.  I sent
Christoph Hellwig some fs images to play with, anyway.

You can't access HP LVM volumes under Linux and nobody is working on
fixing that.  Given a bit of header file snooping and the EVMS plugin
infrastructure it should be too hard to do.

-- 
Martin K. Petersen      Cereal Bowl Engineer, Linuxcare, Inc.
http://mkp.net/         SGI XFS, Linux/PA-RISC, GNOME



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This is a multi-part message in MIME format.

------=_NextPart_000_0018_01C1D038.C599C6E0
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	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

Hi Parisc users,

I have two problems, Installing samba 2.2.2 and executing a samba 2.2.3a =
command=20

Samba 2.2.2 - CD

I use the latest parisc linux version, when i try to install samba i =
receive when linux is trying to reach the cd-rom (other programs don't =
give that error) the kernel fault 26, I have a several HP Parisc =
workstations but this error only comes up at an HP Visualize B 180 L. I =
try a several things to avoid this strange problem, re-install linux, =
don't using dselect anymore but with apt-get install samba, nothing =
works every time the same fault.=20

Samba 2.2.3a - ftp.samba.org

Because 2.2.2 won't work I try to install the latest samba version, but =
it also won't work because when I try to execute some commands, like =
smbpasswd and testparm Linux says that smb isn't a bash command (or =
something like that).=20

I don't have a solution for these problems but I hope someone have!

Regards, Peter=20

------=_NextPart_000_0018_01C1D038.C599C6E0
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2920.0" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi Parisc users,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I have two problems, Installing samba =
2.2.2 and=20
executing a samba 2.2.3a command </FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><U>Samba 2.2.2 - CD</U></FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I use the latest parisc linux version, =
when i try=20
to install samba i receive when linux is trying to reach the cd-rom=20
(other&nbsp;programs don't give that error)&nbsp;the kernel fault 26, I =
have a=20
several HP Parisc workstations but this error only comes up at an HP =
Visualize B=20
180 L. I try a several things to avoid this strange problem, re-install =
linux,=20
don't using dselect anymore but with apt-get install samba, nothing =
works every=20
time the same fault. </FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><U>Samba 2.2.3a - <A=20
href=3D"ftp://ftp.samba.org">ftp.samba.org</A></U></FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Because 2.2.2 won't work I try to =
install the=20
latest samba version, but it also won't work because when I try to =
execute some=20
commands, like smbpasswd and testparm Linux says that smb isn't a bash =
command=20
(or something like that). </FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I don't have&nbsp;a solution for these =
problems but=20
I hope someone have!</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Regards, Peter =
</FONT></DIV></BODY></HTML>

------=_NextPart_000_0018_01C1D038.C599C6E0--




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Subject: Re: [parisc-linux] Re: PA-RISC 0.9.3+C200+Visualize-EG+2.4.18-pa05
 = working X!
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On Thu, 14 Mar 2002, Grant Grundler wrote:

> John wrote:
> > I wanted to share the good news that Grant's recent patch to "entry.S"
> ...
> > Thanks Grant!
>
> That's great news!
>
> But Thomas Bogendoerf should get most of the credit for figuring
> out the problem and fix. I just implemented what he said.
>
> BTW, I've modified the patch a bit (removed an un-needed depdi)
> and it's still not committed yet. I'd like to let Thomas
> commit it himself since he really did the hard part.

I also downloaded and patched a 2.4.18-pa5 kernel with it,
(just a simple conflict with the kernel version number in
 the Makefile appeared, easy to solve).

It works on my C240 with a FX2 card. Well, it now recognizes
the gfx card at startup and it seems to initialize it, but since
I currently don't have a proper monitor, I can't tell you whether
gfx is working or not :-/
(BTW, I use the serial console on the C240, connected to a FreeBSD
 notebook)
At least the C240 is still running, so the patch doesn't do a harm ;)

Actually I HAVE a monitor (a 15" LCD) but it's max resolultion is about
1024x786/70Hz. Since the FX/2 just supports 72 and 75Hz in
the video selection menu at bootup, the monitor just tells me
"signal is out of sync range".

I have mentioned this before (18 Dec 2001) in the mailing-list,
and I was asking how and if you can change the FX-graphics to
a custom resolution (mode 6). Grant replied

> Yes. I don't know exactly how though. I'd look in the User's Guide
> (might be available on docs.hp.com).

unfortunately I haven't found any information except this:

(http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/B2355-90142/B2355-90142_top.html&con=/hpux/onlinedocs/B2355-90142/00/00/42-con.html&toc=/hpux/onlinedocs/B2355-90142/00/00/42-toc.html&searchterms=refresh&queryid=20020320-135018)


-------+++++++++========= snip =========++++++++-------

Changing the Monitor Type
=========================

A configuration tool is available to change the monitor type on HP
VISUALIZE-FX devices. Monitor resolution, refresh rate and stereo mode
settings may be configured using the setmon tool. To change the monitor
type, the setmon command can be executed directly or done through the
SAM system administration tool.

The setmon executable is located at /opt/graphics/common/bin/setmon.
Under SAM this component is located under the top-level "Display"
folder, next to the "X Server Configuration" icon.

-------+++++++++========= snip =========++++++++-------


It seems this utility exists only for the Visualize-FX cards.
Moreover I don't know whether this affects only X (on HP/UX).

Does anybody have information about this utility ?
(I don't have HP/UX, so I can try it ...)
Perhaps it is possible to port/run it. Or does anybody has information
how to change the custom resolution on FX-Cards (without this utility) ?

Thanks in advance, max!





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On Tue, 5 Mar 2002, Grant Grundler wrote:

> Jeremy Drake wrote:

[...]

> > Also, I am unable to build any kernels myself.  I get a bunch of depmod
> > errors, like these
> >
> > depmod: Unhandled relocation of type 74 for printk_Rsmp_dd132261
> > depmod: Unhandled relocation of type 74 for usb_deregister_Rsmp_c6f994d5
>
> I've seen this when CONFIG_PA20 is enabled but CONFIG_PARISC64 is not.
> Don't know if that's your problem, but it's worth checking.
>
> You don't need to enable CONFIG_PA20 in order to run a 32-bit kernel
> on any system that will support 32-bit kernels (A500/L-class only
> support 64-bit kernel).

I can confirm this. I recompiled (3 times) linux-2.4.18-pa5, and I was
just able to compile a static kernel without error message.
The message will occur if you compile a kernel with modules. It's the
depmod command in "make modules_install" that causes the trouble.

But obviously the modules are created and installed. If you do a
simple "depmod -a" (without any additional arguments as in
"make modules_install"), it doesn't complain.
And it also seems that the modules work (haven't tested this too much)!

greetings max




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Subject: Re: [parisc-linux] Re: PA-RISC 0.9.3+C200+Visualize-EG+2.4.18-pa05
 = working X!
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On Wed, 20 Mar 2002, M. Grabert wrote:

> On Thu, 14 Mar 2002, Grant Grundler wrote:
> 
> > John wrote:
> > > I wanted to share the good news that Grant's recent patch to "entry.S"
> > ...
> > > Thanks Grant!
> >
> > That's great news!
> >
> > But Thomas Bogendoerf should get most of the credit for figuring
> > out the problem and fix. I just implemented what he said.
> >
> > BTW, I've modified the patch a bit (removed an un-needed depdi)
> > and it's still not committed yet. I'd like to let Thomas
> > commit it himself since he really did the hard part.
> 
> I also downloaded and patched a 2.4.18-pa5 kernel with it,
> (just a simple conflict with the kernel version number in
>  the Makefile appeared, easy to solve).
> 
> It works on my C240 with a FX2 card. Well, it now recognizes
> the gfx card at startup and it seems to initialize it, but since
> I currently don't have a proper monitor, I can't tell you whether
> gfx is working or not :-/
> (BTW, I use the serial console on the C240, connected to a FreeBSD
>  notebook)
> At least the C240 is still running, so the patch doesn't do a harm ;)

It doesnt crash my C240 either, but unfortunately no fb is working. I
guess this doesn't work for the FX2 graphics cards..

Arjen Hommersom





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"M. Grabert" wrote:
> I have mentioned this before (18 Dec 2001) in the mailing-list,
> and I was asking how and if you can change the FX-graphics to
> a custom resolution (mode 6). Grant replied
> 
> > Yes. I don't know exactly how though. I'd look in the User's Guide
> > (might be available on docs.hp.com).
> 
> unfortunately I haven't found any information except this:

hmm...I was looking for the method using PDC prompt.
"mon" I thought let one do such customization but I don't know
the syntax. Am I on the wrong track or does someone have
the docs for this?

(Note that mucking with timings can break your HW if you mess it up)

hth,
grant



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"M. Grabert" wrote:
> > > depmod: Unhandled relocation of type 74 for printk_Rsmp_dd132261
> > > depmod: Unhandled relocation of type 74 for usb_deregister_Rsmp_c6f994d5
> >
> > I've seen this when CONFIG_PA20 is enabled but CONFIG_PARISC64 is not.
> > Don't know if that's your problem, but it's worth checking.

FWIW, it seems the Richard Hirst has fixed this.
He's posted a modutils_2.4.13-3.1rgh_hppa.deb to test
(I've used it successfully) on ftp.p-l.o/unofficial-debs.

thanks richard!
grant



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Subject: Re: [parisc-linux] Re: PA-RISC 0.9.3+C200+Visualize-EG+2.4.18-pa05 = working X!
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Arjen Hommersom wrote:
> It doesnt crash my C240 either, but unfortunately no fb is working. I
> guess this doesn't work for the FX2 graphics cards..

correct. FX/* cards support 24-bit color and have a different Frame buffer
layout that tsbogend/deller/esiee/et al don't know how to make work exactly.

I'm really happy the Vis-EG works (using it now)...but I've got a
Vis-FX/E waiting to be plugged in...

thanks,
grant



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Subject: Re: [parisc-linux] EISA 100/10 add-on card on a 715/80
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Hello,

This time a brought a 715/80 model to test the EISA network card. I do 
not get a kernel BUG.

The network interface is brought up, but I can't connect to the rest of 
the machines in my lan.

I connected the card's 10 BaseT port to my switch.

While trying to ping from the parisc box to my linux PC I get this from 
tcpdump, *.2 is the PC and *.21 is the parisc:

22:04:31.926833 192.168.0.21 > 192.168.0.2: icmp: echo request (DF)
22:04:31.926903 192.168.0.2 > 192.168.0.21: icmp: echo reply [tos 0x10]
22:04:32.926816 192.168.0.21 > 192.168.0.2: icmp: echo request (DF)
22:04:32.926913 192.168.0.2 > 192.168.0.21: icmp: echo reply [tos 0x10]
22:04:33.926793 192.168.0.21 > 192.168.0.2: icmp: echo request (DF)
22:04:33.926885 192.168.0.2 > 192.168.0.21: icmp: echo reply [tos 0x10]
22:04:34.926769 192.168.0.21 > 192.168.0.2: icmp: echo request (DF)
22:04:34.926858 192.168.0.2 > 192.168.0.21: icmp: echo reply [tos 0x10]

Any comments?

P.S. Is there a way to make the hp100 driver bind to eth1 and the built 
in interface bind to eth0?

Thanks.
-- 
      Rafael




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Hi!

I'm trying to install the debian on a B180L, however if I can boot on the 0.9.2Cd, I can't on the 0.9.3. And it seem s that the 0.9.2 Cd doesn't support tyhe key boardon my B180L.

Do you have any methodology to make a bootable CD from the 0.9.3 CD?

Thanks



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<P>Hi!</P>
<P>I'm trying to install the debian on a B180L, however if I can boot on the 0.9.2Cd, I can't on the 0.9.3. And it seem s that the 0.9.2 Cd doesn't support tyhe key boardon my B180L.</P>
<P>Do you have any methodology to make a bootable CD from the 0.9.3 CD?</P>
<P>Thanks</P><p><br><hr size=1><a href="http://fr.mail.yahoo.com">Yahoo! Mail</a> -- Une adresse @yahoo.fr gratuite et en franais !<br>
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As some of you told me the CD is bootable...

I'm wondering if there a special method to burn the iso file. I use Nero, but parhaps another software is more

suitable for such task?


Nono, alias Ken le Survivant


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<P>As some of you told me the CD is bootable...</P>
<P>I'm wondering if there a special method to burn the iso file. I use Nero, but parhaps another software is more</P>
<P>suitable for such task?</P><BR><BR>Nono, alias Ken le Survivant<p><br><hr size=1><a href="http://fr.mail.yahoo.com">Yahoo! Mail</a> -- Une adresse @yahoo.fr gratuite et en franais !<br>
--0-840234807-1016809161=:28700--



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when trying to netboot my c200 to install the 0.9 cd,
it doesnt get very far...

i did a sea lan and get a p0 reference;
P0     LAN.192.168.1.1.3.254    192.168.1.1   100/Full Dx

(192.168.1.1 being my router, .1.10 is my freebsd box).

so when I  boot p0 i get


Cannot find ENTRY_TEST.

Failed to initialize.

ENTRY_INIT
Status = -7


checking the arp cache on my router doesnt even give a reference
to my c200 (i dont even know the c200's booting default ip)

BUT! checking my dhcp ip assignment table in the router i get
3       192.168.1.11    00-60-B0-B2-89-18       11:49:02.600

so I know its created an entry for the machine...
i also know the cable is good (i netboot my sparcstation 5 just peachy).


doing a direct connect from my c200 to my pc (freebsd 4.5) and doing a sea lan
gets no result.

i have my /etc/ethers set with the c200 MAC
i have tftpboot setup, bootpd, rarpd, etc.

if it helps here is some of the techo info from the c200;
(mebbe a known bug in some firmware I have? problem is, since I cant boot
the c200, I cant update the firmware....)


Firmware Version  5.8

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
    (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

   Processor   Speed            State           Coprocessor State  I/D Cache
   ---------  --------   ---------------------  ----------------- 
-------------
       0      200 MHz    Active                 Functional         512 KB/1 MB

   Central Bus Speed (in MHz) :        120

   Available memory (bytes)    : 268406784
   Good memory required (bytes):   21610496

   Primary boot path:    FWSCSI.6.0
   Alternate boot path:  SESCSI.6.0
   Console path:         GRAPHICS(4)
   Keyboard path:        PS2

   LAN Station Address:  0060b0-b28918


CHIP REVISIONS

         Module              Revision
         ------              --------
         Backplane Board     1
         I/O Board           3
         Processor Board     0
         PA 8200-8200 CPU    4.0
         PDC                 5.8
         Memory Controller   9
         I/O Bus Adapter 0   15
         GSC to PCI Bridge   0x6803
         Multi I/O Chip      0
         I/O Bus Adapter 1   15
         GSC to PCI Bridge   0x6822
         GSC 1               40MHz
         GSC 2               40MHz

         GRAPHICS(4)         8.09/100 2fc1066b.09a02587


I/O MODULE INFORMATION
                                                                      IODC IODC
Path         Decimal Type                      Location   HVER SVER  Vers Dep
------------ ------- ------------------------- ---------- ---- ----  ---- ----
8/0          8/0     Bus Bridge                built-in   6803 0a00  0x00 0x00
SERIAL_2     8/0/63  RS232 port                built-in   0060 8c00  0x01 0x00
8/16         8/16    Bus Adapter               built-in   0560 8100  0x00 0x00
8/16/0       8/16/0  Parallel                  built-in   0560 7400  0x00 0x00
8/16/1       8/16/1  Audio                     built-in   0564 7b00  0x00 0x00
SERIAL_1     8/16/4  RS232                     built-in   0560 8c00  0x01 0x00
SESCSI       8/16/5  SE SCSI                   built-in   0560 8200  0x99 0x00
PS2          8/16/7  Keyboard                  built-in   0560 8400  0x00 0x00
8/16/8       8/16/8  Mouse                     built-in   0560 8400  0x00 0x00
8/63         8/63    Bus Converter             built-in   5011 0c00  0x00 0x00
10/0         10/0    Bus Bridge                built-in   6821 0a00  0x00 0x00
10/63        10/63   Bus Converter             built-in   5011 0c00  0x00 0x00



-Dark Fiber <dfiber@mega-tokyo.com>

[FAQ] Write Your Own Operating System
         http://www.mega-tokyo.com/os
Sarien Sierra AGI Emulator
         http://www.mega-tokyo.com/sarien
3x3 Eyes Fanfiction Archive
         http://www.mega-tokyo.com/pai
AD&D UnderDark Roguelike
         http://www.mega-tokyo.com/underdark
Roguelike News II
         http://www.mega-tokyo.com/rlnews






From - Thu Nov 08 21:22:11 2018
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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] netbooting kernel
Date: Sun, 24 Mar 2002 00:57:29 +0100
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Hello !

I cannot say you directly your problem, but check following ...

Decide for one boot method, not all things in mixture as BOOTP and RARP
and DHCP and .....

Your box seems to speak BOOTP/DHCP, is this correct ?
Otherwise you need to use RBOOT (a HP proprietary boot protocol).

Decide for BOOTP or DHCP!

For BOOTP only ONE file is needed, the `/etc/bootptab'.
For DHCP only ONE file is needed, the `/etc/dhcpd.conf'.

(No need for `ethers' etc....).

Now check, if the boot file (LIF image) is correctly defined in the
`bootptab' or `dhcpd.conf', perhaps your machine does not get the valid
boot image. BTW, the image is created with `make palo' on the linux
kernel
source tree base.

I hope, you will find a thing, which is not correct here ... !

With friendly regards
Christoph Plattner


Dark Fiber wrote:
> 
> when trying to netboot my c200 to install the 0.9 cd,
> it doesnt get very far...
> 
> i did a sea lan and get a p0 reference;
> P0     LAN.192.168.1.1.3.254    192.168.1.1   100/Full Dx
> 
> (192.168.1.1 being my router, .1.10 is my freebsd box).
> 
> so when I  boot p0 i get
> 
> Cannot find ENTRY_TEST.
> 
> Failed to initialize.
> 
> ENTRY_INIT
> Status = -7
> 
> checking the arp cache on my router doesnt even give a reference
> to my c200 (i dont even know the c200's booting default ip)
> 
> BUT! checking my dhcp ip assignment table in the router i get
> 3       192.168.1.11    00-60-B0-B2-89-18       11:49:02.600
> 
> so I know its created an entry for the machine...
> i also know the cable is good (i netboot my sparcstation 5 just peachy).
> 
> doing a direct connect from my c200 to my pc (freebsd 4.5) and doing a sea lan
> gets no result.
> 
> i have my /etc/ethers set with the c200 MAC
> i have tftpboot setup, bootpd, rarpd, etc.
> 
> if it helps here is some of the techo info from the c200;
> (mebbe a known bug in some firmware I have? problem is, since I cant boot
> the c200, I cant update the firmware....)
> 
> Firmware Version  5.8
> 
> Duplex Console IO Dependent Code (IODC) revision 1
> 
> ------------------------------------------------------------------------------
>     (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
> ------------------------------------------------------------------------------
> 
>    Processor   Speed            State           Coprocessor State  I/D Cache
>    ---------  --------   ---------------------  -----------------
> -------------
>        0      200 MHz    Active                 Functional         512 KB/1 MB
> 
>    Central Bus Speed (in MHz) :        120
> 
>    Available memory (bytes)    : 268406784
>    Good memory required (bytes):   21610496
> 
>    Primary boot path:    FWSCSI.6.0
>    Alternate boot path:  SESCSI.6.0
>    Console path:         GRAPHICS(4)
>    Keyboard path:        PS2
> 
>    LAN Station Address:  0060b0-b28918
> 
> CHIP REVISIONS
> 
>          Module              Revision
>          ------              --------
>          Backplane Board     1
>          I/O Board           3
>          Processor Board     0
>          PA 8200-8200 CPU    4.0
>          PDC                 5.8
>          Memory Controller   9
>          I/O Bus Adapter 0   15
>          GSC to PCI Bridge   0x6803
>          Multi I/O Chip      0
>          I/O Bus Adapter 1   15
>          GSC to PCI Bridge   0x6822
>          GSC 1               40MHz
>          GSC 2               40MHz
> 
>          GRAPHICS(4)         8.09/100 2fc1066b.09a02587
> 
> I/O MODULE INFORMATION
>                                                                       IODC IODC
> Path         Decimal Type                      Location   HVER SVER  Vers Dep
> ------------ ------- ------------------------- ---------- ---- ----  ---- ----
> 8/0          8/0     Bus Bridge                built-in   6803 0a00  0x00 0x00
> SERIAL_2     8/0/63  RS232 port                built-in   0060 8c00  0x01 0x00
> 8/16         8/16    Bus Adapter               built-in   0560 8100  0x00 0x00
> 8/16/0       8/16/0  Parallel                  built-in   0560 7400  0x00 0x00
> 8/16/1       8/16/1  Audio                     built-in   0564 7b00  0x00 0x00
> SERIAL_1     8/16/4  RS232                     built-in   0560 8c00  0x01 0x00
> SESCSI       8/16/5  SE SCSI                   built-in   0560 8200  0x99 0x00
> PS2          8/16/7  Keyboard                  built-in   0560 8400  0x00 0x00
> 8/16/8       8/16/8  Mouse                     built-in   0560 8400  0x00 0x00
> 8/63         8/63    Bus Converter             built-in   5011 0c00  0x00 0x00
> 10/0         10/0    Bus Bridge                built-in   6821 0a00  0x00 0x00
> 10/63        10/63   Bus Converter             built-in   5011 0c00  0x00 0x00
> 
> -Dark Fiber <dfiber@mega-tokyo.com>
> 
> [FAQ] Write Your Own Operating System
>          http://www.mega-tokyo.com/os
> Sarien Sierra AGI Emulator
>          http://www.mega-tokyo.com/sarien
> 3x3 Eyes Fanfiction Archive
>          http://www.mega-tokyo.com/pai
> AD&D UnderDark Roguelike
>          http://www.mega-tokyo.com/underdark
> Roguelike News II
>          http://www.mega-tokyo.com/rlnews
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Dark Fiber wrote:
> i did a sea lan and get a p0 reference;
> P0     LAN.192.168.1.1.3.254    192.168.1.1   100/Full Dx
> 
> (192.168.1.1 being my router, .1.10 is my freebsd box).

You router is responding to the bootp query.
Is this the box that will provide the "LIF" image?

> doing a direct connect from my c200 to my pc (freebsd 4.5) and doing a
> "sea lan" gets no result.

Are you using a cross-over cable?
A regular LAN cable won't work for direct (point-to-point) connect.

grant



From - Thu Nov 08 21:22:12 2018
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Subject: [parisc-linux] Kernel 2.4.17-32-smp problem
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I have been running debian hppa for a while now without incedent.
Recently, I ran apt-get upgrade, and it upgraded my kernel-image
2.4.17-32-smp.  I rebooted, and the box now crashes periodically.  It has
done this twice.  Since I have not had physical access to the box for a
while, I can't get any logs or even bring the box back up.  Hopefully by
monday I'll be able to be more help.

The box is a J5000 with 512M ram and a 30Gig 15k scsi drive on id6 of the
hotswap scsi.  It is running serial console, but has a hp video card.  I
don't know exactly what that is.  The USB on the back is hosed, so the
firmware can't detect the HP keyboard and it boots serial console.

I would also like to ask you hardware gurus out there if I were to buy and
add a PCI USB controller to the J5000, if the firmware would detect the
keyboard and boot properly.

Thanks for the great work on this port, and hopefully you can help me.
Log files to follow when available.......

-- 
You are as I am with You.





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Subject: [parisc-linux] Something broken in dpkg/dselect/apt?
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A couple days ago I apt-get update/upgraded my C180, since it had been off
for a few weeks while I was moving. Everything seemed to go fine, no
errors. Also cvs'd and updated to 2.4.18-pa05 at the same time, again
without errors. Shut it down, turned it on today, and now apt-get update
(or dselect update) fails. Updates download, then errors "Failed to fetch
-x-  rename failed, no such file or directory" and "couldn't stat -x- -
stat (2 no such file or directory". It then helpfully suggests that I
rerun the apt-get udpate... I cleared the package list in dpkg, I
recreated my sources.list file, and I checked to see if the permissions
were gone in /var/lib/apt, which they don't appear to be. The files it
fails to rename are there, there's rwx on them, and I'm in as root...

Has anyone noticed this, or heard of this? As a possibly related note,
rerunning cvs to check the kernel version gives me the same three files
updating, and it appears that cvs thinks the update is failing, so every
time I cvs-update it re-downloads them... It's run fine all day, no
instability or errors, rebooting showed no errors. Strange...

If anyone can suggest how to approach this I'm all ears...




From - Thu Nov 08 21:22:12 2018
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Jeremy Drake wrote:
> Recently, I ran apt-get upgrade, and it upgraded my kernel-image
> 2.4.17-32-smp.  I rebooted, and the box now crashes periodically.

Where you running an SMP kernel before?
(If so, which version?)

Normally I'd say get the latest (2.4.18 based) kernel.
But I know the SMP variant hangs on my A500 pretty quickly.
I haven't had a chance to debug this since I've been spending spare
cycle working on PA8700 support (bug workarounds in SBA code).

IIRC, the debian buildd machine is also a J5000 and runs a
non-SMP kernel for similar (same?) reason.

hth,
grant



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Tom wrote:
> ...Shut it down, turned it on today, and now apt-get update
> (or dselect update) fails. Updates download, then errors "Failed to fetch
> -x-  rename failed, no such file or directory" and "couldn't stat -x- -
> stat (2 no such file or directory". It then helpfully suggests that I
> rerun the apt-get udpate...

[ please follow up to debian-hppa list only ]

I see this if I happen to upgrade when I think the mirrors are getting
sync'd. Retrying a few hours later usually worked for me.
Locally, the problem time was around 12-4PM PST for debian mirrors
external to HP.

hth,
grant



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On Sun, 24 Mar 2002, Grant Grundler wrote:

> Jeremy Drake wrote:
> > Recently, I ran apt-get upgrade, and it upgraded my kernel-image
> > 2.4.17-32-smp.  I rebooted, and the box now crashes periodically.
>
> Where you running an SMP kernel before?
> (If so, which version?)

I was running 2.4.17-32-smp before.  It just updated a debian package of
the same kernel version.  I had no problems with the old one, other than
the fact that it seems to ignore cpu0.  All processor time goes to cpu1
and cpu0 gets a ton of idle.

>
> Normally I'd say get the latest (2.4.18 based) kernel.
> But I know the SMP variant hangs on my A500 pretty quickly.
> I haven't had a chance to debug this since I've been spending spare
> cycle working on PA8700 support (bug workarounds in SBA code).

When the box crashed both times, I was checking out the cvs tree :)

>
> IIRC, the debian buildd machine is also a J5000 and runs a
> non-SMP kernel for similar (same?) reason.
>
> hth,
> grant
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>

-- 
Paranoia doesn't mean the whole world isn't out to get you.




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Subject: [parisc-linux] Re: Using Audio card on 735/99
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[this is a kernel-related question, moving discussion to parisc-linux]

On Sun, Mar 24, 2002 at 03:32:53PM -0500, Vlad D. Markov wrote:
> I would like to use my audio card on my 735/99 but have failed so far.
> 
> I have used various kernel versions, the last attempt was with a kernel drawn 
> from cvs on 3/21/02, Linux version 2.4.18-pa7. dmesg doesn't list the harmony 
> card as found. The harmony driver was compiled with the kernel.

Harmony doesn't claim to support that device.  I don't know that it will
work ... but you might be lucky :-)

Try adding this patch and let's see what happens:

--- drivers/sound/harmony.c     2002/02/14 19:02:21     1.25
+++ drivers/sound/harmony.c     2002/03/24 20:52:31
@@ -1244,7 +1244,10 @@ out_err:
 
 
 static struct parisc_device_id harmony_tbl[] = {
+       { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007A },
        { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007B },
+       { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007E },
+       { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007F },
        { 0, }
 };
 

This makes harmony pick up all the Audio devices, including some it
almost certainly won't support (eg 705 / 710 audio, which i understand
to be completely different).  But maybe 735's sound will Just Work.
Let's hope.

-- 
Revolutions do not require corporate support.



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On Fri, Mar 22, 2002 at 11:01:45AM +0100, Bruno L?on wrote:
> 
> Hi!
> 
> I'm trying to install the debian on a B180L, however if I can boot on the 0.9.2Cd, I can't on the 0.9.3. And it seem s that the 0.9.2 Cd doesn't support tyhe key boardon my B180L.
> 
> Do you have any methodology to make a bootable CD from the 0.9.3 CD?

The 0.9.3 CD is bootable; if your hardware boots the 0.9.2 CD but not
the 0.9.3 CD, I suggest that you verify the md5sum of your CD, and maybe
burn a fresh copy.

Richard




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There've been a lot of crossposted threads between the lists and misdirected
email recently... let's try to reduce that.  My understanding of the 
charter of each list is:

parisc-linux:
 - General discussion about the port
 - Kernel and toolchain issues

debian-hppa:
 - Using Debian on PA machines
 - Porting debian packages to hppa

Questions about general Debian usage should probably be directed to
debian-user rather than debian-hppa.

Any objections to this statement of the charter of these lists?  I'm
just trying to cut down on misdirected questions.

-- 
Revolutions do not require corporate support.



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> I would also like to ask you hardware gurus out there if I were to buy and
> add a PCI USB controller to the J5000, if the firmware would detect the
> keyboard and boot properly.

looks like j5000 also has suckyio... so you should have a builtin usb 
controller on your machine. why not just use that?

randolph
-- 
Debian Developer <tausq@debian.org>
http://www.TauSq.org/



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Subject: [parisc-linux] Re: Using Audio card on 735/99
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To: parisc-linux@parisc-linux.org, Matthew Wilcox <willy@debian.org>
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Moderate success.

1. aumix worked.
2. xmms hung forever.
3. I wrote an au file to /dev/dsp. I thought nothing happened. Minutes later 
I was surprised to hear the file over my headphones. I have been unable to 
repeat this.

On Sunday 24 March 2002 04:02 pm, Matthew Wilcox wrote:
> [this is a kernel-related question, moving discussion to parisc-linux]
>
> On Sun, Mar 24, 2002 at 03:32:53PM -0500, Vlad D. Markov wrote:
> > I would like to use my audio card on my 735/99 but have failed so far.
> >
> > I have used various kernel versions, the last attempt was with a kernel
> > drawn from cvs on 3/21/02, Linux version 2.4.18-pa7. dmesg doesn't list
> > the harmony card as found. The harmony driver was compiled with the
> > kernel.
>
> Harmony doesn't claim to support that device.  I don't know that it will
> work ... but you might be lucky :-)
>
> Try adding this patch and let's see what happens:
>
> --- drivers/sound/harmony.c     2002/02/14 19:02:21     1.25
> +++ drivers/sound/harmony.c     2002/03/24 20:52:31
> @@ -1244,7 +1244,10 @@ out_err:
>
>
>  static struct parisc_device_id harmony_tbl[] = {
> +       { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007A },
>         { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007B },
> +       { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007E },
> +       { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007F },
>         { 0, }
>  };
>
>
> This makes harmony pick up all the Audio devices, including some it
> almost certainly won't support (eg 705 / 710 audio, which i understand
> to be completely different).  But maybe 735's sound will Just Work.
> Let's hope.



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On Sun, 24 Mar 2002, Randolph Chung wrote:

> > I would also like to ask you hardware gurus out there if I were to buy and
> > add a PCI USB controller to the J5000, if the firmware would detect the
> > keyboard and boot properly.
>
> looks like j5000 also has suckyio... so you should have a builtin usb
> controller on your machine. why not just use that?
>
This controller is damaged -- it will not work.  I'm looking for an
alternative.  Thanks for your help....


-- 
Life is like a 10 speed bicycle.  Most of us have gears we never use.
		-- C. Schultz




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Subject: Re: [parisc-linux] Re: Kernel 2.4.17-32-smp problem
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Jeremy Drake wrote:
> I was running 2.4.17-32-smp before.  It just updated a debian package of
> the same kernel version.  I had no problems with the old one, other than
> the fact that it seems to ignore cpu0.  All processor time goes to cpu1
> and cpu0 gets a ton of idle.

hmm..that fits with the "top" report of 50% idle that I've seen.
We've already got a bug report on this, iirc.

Your observation suggest something wrong with either process scheduling
or process accounting.

And I hope CPU0 isn't completely idle, look at /proc/interrupts.
I know interrupt distribution works.

> When the box crashed both times, I was checking out the cvs tree :)

network/IO intensive load - lots of interrupts...hmm.

grant



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Jeremy Drake wrote:
> This controller is damaged -- it will not work.  I'm looking for an
> alternative.  Thanks for your help....

Bummer. I think you better start getting used to serial for booting.
PDC typically only knows how to talk to a few select devices needed
for booting. And some of them it knows are built-in and where to
find them.

If you setup the machine to auto-boot and add a regular PCI USB
controller card that linux likes, you should be able to have
X11 just find the USB Keyboard/Mouse from the add-on card as well.

grant



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On Sun, 24 Mar 2002, Grant Grundler wrote:

> And I hope CPU0 isn't completely idle, look at /proc/interrupts.
> I know interrupt distribution works.
>
according to /proc/stat
cpu  599904 33379482 34656795 68636319
cpu0 0 0 64 68636186
cpu1 599904 33379482 34656731 133

>From the docs I've seen, the numbers are user, nice, system, idle
respectively.  As far as I can tell, cpu0 only used 64 whatevers in a
timespan of ~68 million.  Doesn't look too much like any interrupts are
being handled there (I assume that would register as system).

I'll check /proc/interrupts when the box is back up.  BTW, these numbers
are from earlier, when the box wasn't crashing... It was up ~1 week at
the time.

>
> grant
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>

-- 
When it's dark enough you can see the stars.
		-- Ralph Waldo Emerson,





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Just for information.

Joel

----- Forwarded message from joel.soete@freebel.net -----
Date: Mon, 25 Mar 2002 08:31:40 +0100 (CET)
From: joel.soete@freebel.net
Reply-To: joel.soete@freebel.net
Subject: Re: Verifying gpm problems.
To: "Zephaniah E. Hull" <warp@babylon.d2dc.net>

Quoting "Zephaniah E. Hull" <warp@babylon.d2dc.net>:

> I have some bad news, your mouse does not know how to speak the PS/2
> protocol.
> 
> Research seems to indicate that the HP mice are the same as the OEM
> Logitech mice, which are known to be broken.
> 
> There is no way to handle this correctly, you will have to use the
> fups2 protocol.
type=fups2 works fine (in /etc/gpm.conf) (for gpm-1.19.6-11 naturally)

Thanks a lot for advise and attention,
    Joel
> 
> Sorry.

> 
> Zephaniah E. Hull.
> 
> On Sat, Mar 23, 2002 at 11:59:10AM +0000, Joel Soete wrote:
> > Here you are.
> > 
> > Again sorry for inconvenience,
> > 	Joel
> 
> -- 
> 	1024D/E65A7801 Zephaniah E. Hull <warp@babylon.d2dc.net>
> 	   92ED 94E4 B1E6 3624 226D  5727 4453 008B E65A 7801
> 	    CCs of replies from mailing lists are requested.
> 
> "I am ecstatic that some moron re-invented a 1995 windows fuckup."
>         -- Alan Cox
> 


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To: Grant Grundler <grundler@dsl2.external.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:14416

Le lundi 25 mars 2002, =E0 04:58 , Grant Grundler a =E9crit :

> Jeremy Drake wrote:
>> I was running 2.4.17-32-smp before.  It just updated a debian package=20=

>> of
>> the same kernel version.  I had no problems with the old one, other=20=

>> than
>> the fact that it seems to ignore cpu0.  All processor time goes to =
cpu1
>> and cpu0 gets a ton of idle.
>
> hmm..that fits with the "top" report of 50% idle that I've seen.
> We've already got a bug report on this, iirc.
We're running a 2.4.17-pa17 SMP for over 12 days now on our A500;
The top also shows us a 50% idle.
The slmon utility shows that only one processor is being used (CPU1),=20
but the experience told us it wasn't true (see bellow).
>
> Your observation suggest something wrong with either process =
scheduling
> or process accounting.
>
> And I hope CPU0 isn't completely idle, look at /proc/interrupts.
> I know interrupt distribution works.
We are running two instances of setiathome ;o) on this machine with this=20=

kernel,
both units are completed in the same time, I mean that the box does two=20=

units in the time it needs to do one in non-SMP mode. Therefore I think=20=

that both processors are functioning properly ;o)
We have noticed that the load average seems to reflect the real load on=20=

the machine: it goes up to 2.00 when 2 setis are running, even though=20
only one seems to be "on processor" according to the top.

We suspect that something goes wrong with the proc.
Here's our /proc/interrupts:
[varenet@mkhppa3 ~]$ cat /proc/interrupts
  IRQ      count         Region    ISR
  64:  218592808    8402371       PA-CPU-00  timer
  65:    7219789          0       PA-CPU-00  IPI
  66:    8402371         30       PA-CPU-00  IO-SAPIC00-L0
  67:          0     239155       PA-CPU-00  IO-SAPIC00-L1
  68:          0       2284       PA-CPU-00  IO-SAPIC00-L2
  69:         30          0       PA-CPU-00  IO-SAPIC00-L2
  70:     239155          0       PA-CPU-00  IO-SAPIC00-L3
  71:       2284          0       PA-CPU-00  IO-SAPIC00-L4
  72:          0          0       PA-CPU-00  IO-SAPIC00-L5
128:    8402371          0      IO-SAPIC00  eth0
130:         30          0      IO-SAPIC00  sym53c8xx
131:     239155          0      IO-SAPIC00  sym53c8xx
132:       2284          0      IO-SAPIC00  serial
>
>
Thibaut VARENE
PA/Linux ESIEE Team
http://www.esiee.fr/puffin




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From: Paul Telford <paul_telford@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] latest lvm10 package broken?
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Xref: news.gmane.org gmane.linux.ports.parisc:14417

I recently started getting frequent (several times a day) crashes on my A180. 
Investigating the problem, I found that it started after I had upgraded the 
lvm10 package to the latest version (1.1rc1-1).  Downgrading back to 
1.0.1release-1 seems to have solved the problem.  Based on the crash output, 
IAOQ seems to point to find_inode, which looks consistent with an lvm 
problem.  Just wanted to give a heads-up in case anyone else is running lvm 
and is experiencing problems...




 Paul.



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From: Jeremy Drake <jeremyd@apptechsys.com>
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Subject: Re: [parisc-linux] Re: Kernel 2.4.17-32-smp problem
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On Mon, 25 Mar 2002, Thibaut VARENE wrote:

> We're running a 2.4.17-pa17 SMP for over 12 days now on our A500;
> The top also shows us a 50% idle.
> The slmon utility shows that only one processor is being used (CPU1),
> but the experience told us it wasn't true (see bellow).
> >
> > Your observation suggest something wrong with either process scheduling
> > or process accounting.
> >
> > And I hope CPU0 isn't completely idle, look at /proc/interrupts.
> > I know interrupt distribution works.
> We are running two instances of setiathome ;o) on this machine with this
> kernel,
> both units are completed in the same time, I mean that the box does two
> units in the time it needs to do one in non-SMP mode. Therefore I think
> that both processors are functioning properly ;o)
> We have noticed that the load average seems to reflect the real load on
> the machine: it goes up to 2.00 when 2 setis are running, even though
> only one seems to be "on processor" according to the top.

When I tried to run 2 seti's, one hung.  When I look at per-process stats,
they all have 0 time on cpu0.

>
> We suspect that something goes wrong with the proc.
> Here's our /proc/interrupts:
> [varenet@mkhppa3 ~]$ cat /proc/interrupts
>   IRQ      count         Region    ISR
>   64:  218592808    8402371       PA-CPU-00  timer
>   65:    7219789          0       PA-CPU-00  IPI
>   66:    8402371         30       PA-CPU-00  IO-SAPIC00-L0
>   67:          0     239155       PA-CPU-00  IO-SAPIC00-L1
>   68:          0       2284       PA-CPU-00  IO-SAPIC00-L2
>   69:         30          0       PA-CPU-00  IO-SAPIC00-L2
>   70:     239155          0       PA-CPU-00  IO-SAPIC00-L3
>   71:       2284          0       PA-CPU-00  IO-SAPIC00-L4
>   72:          0          0       PA-CPU-00  IO-SAPIC00-L5
> 128:    8402371          0      IO-SAPIC00  eth0
> 130:         30          0      IO-SAPIC00  sym53c8xx
> 131:     239155          0      IO-SAPIC00  sym53c8xx
> 132:       2284          0      IO-SAPIC00  serial
> >
> >
> Thibaut VARENE
> PA/Linux ESIEE Team
> http://www.esiee.fr/puffin
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>

-- 
Truthful, adj.:
	Dumb and illiterate.
		-- Ambrose Bierce, "The Devil's Dictionary"




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Xref: news.gmane.org gmane.linux.ports.parisc:14419

On Sat, 23 Mar 2002, Jeremy Drake wrote:

> I have been running debian hppa for a while now without incedent.
> Recently, I ran apt-get upgrade, and it upgraded my kernel-image
> 2.4.17-32-smp.  I rebooted, and the box now crashes periodically.  It has
> done this twice.  Since I have not had physical access to the box for a
> while, I can't get any logs or even bring the box back up.  Hopefully by
> monday I'll be able to be more help.
>
> Thanks for the great work on this port, and hopefully you can help me.
> Log files to follow when available.......

Unfortunately, the log files are very unhelpful.
It just stops, and starts back up when I reboot.

Mar 21 18:55:16 krakatoa -- MARK --
Mar 22 15:16:29 krakatoa syslogd 1.4.1#10: restart.
Mar 22 15:16:29 krakatoa kernel: klogd 1.4.1#10, log source = /proc/kmsg
started.
Mar 22 15:16:29 krakatoa kernel: Inspecting /boot/System.map-2.4.17-32-smp
Mar 22 15:16:29 krakatoa kernel: Loaded 30310 symbols from
/boot/System.map-2.4.17-32-smp.
Mar 22 15:16:29 krakatoa kernel: Symbols match kernel version 2.4.17.
Mar 22 15:16:29 krakatoa kernel: No module symbols loaded.
Mar 22 15:16:29 krakatoa kernel: Linux version 2.4.17-32-smp (root@paer)
(gcc version 3.0.4) #1 SMP Sat Mar 16 17:55:20 MST 2002

-- 
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 temptation but would like it to keep in touch."
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On Mon, 25 Mar 2002, Jeremy Drake wrote:

> Unfortunately, the log files are very unhelpful.
> It just stops, and starts back up when I reboot.
>

It just occured to me that the different startup logs could be helpful.
So here they are.  Sorry for the length, but I don't know what could be
useful.  Looks like the new one has more drivers, and recognizes my video
card that I don't use (yet).

The One That Works:
Mar 25 09:24:13 krakatoa syslogd 1.4.1#10: restart.
Mar 25 09:24:13 krakatoa kernel: klogd 1.4.1#10, log source = /proc/kmsg started.
Mar 25 09:24:13 krakatoa kernel: Inspecting /boot/System.map-2.4.17-32-smp
Mar 25 09:24:14 krakatoa kernel: Loaded 27313 symbols from /boot/System.map-2.4.17-32-smp.
Mar 25 09:24:14 krakatoa kernel: Symbols match kernel version 2.4.17.
Mar 25 09:24:14 krakatoa kernel: No module symbols loaded.
Mar 25 09:24:14 krakatoa kernel: Linux version 2.4.17-32-smp (root@paer) (gcc version 3.0.3) #1 SMP Thu Feb 14 02:12:37 MST 2002
Mar 25 09:24:14 krakatoa kernel: FP[0] enabled: Rev 1 Model 16
Mar 25 09:24:14 krakatoa kernel: The 32-bit Kernel has started...
Mar 25 09:24:14 krakatoa kernel: Determining PDC firmware type: System Map.
Mar 25 09:24:14 krakatoa kernel: model 00005bd0 00000491 00000000 00000002 776c6453 100000f0 00000008 000000b2 000000b2
Mar 25 09:24:14 krakatoa kernel: vers  00000201
Mar 25 09:24:14 krakatoa kernel: CPUID vers 17 rev 5 (0x00000225)
Mar 25 09:24:14 krakatoa kernel: model 9000/785/J5000
Mar 25 09:24:14 krakatoa kernel: Total Memory: 512 Mb
Mar 25 09:24:14 krakatoa kernel: pagetable_init
Mar 25 09:24:14 krakatoa kernel: On node 0 totalpages: 131072
Mar 25 09:24:14 krakatoa kernel: zone(0): 131072 pages.
Mar 25 09:24:14 krakatoa kernel: zone(1): 0 pages.
Mar 25 09:24:14 krakatoa kernel: zone(2): 0 pages.
Mar 25 09:24:14 krakatoa kernel: LCD display at f05d0008,f05d0000 registered
Mar 25 09:24:14 krakatoa kernel: Kernel command line: root=/dev/sda4 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
Mar 25 09:24:14 krakatoa kernel: Console: colour dummy device 160x64
Mar 25 09:24:14 krakatoa kernel: Calibrating delay loop... 878.18 BogoMIPS
Mar 25 09:24:14 krakatoa kernel: Memory: 508244k available
Mar 25 09:24:14 krakatoa kernel: Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Mar 25 09:24:14 krakatoa kernel: Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
Mar 25 09:24:14 krakatoa kernel: Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
Mar 25 09:24:14 krakatoa kernel: Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Mar 25 09:24:14 krakatoa kernel: Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Mar 25 09:24:14 krakatoa kernel: Searching for devices...
Mar 25 09:24:14 krakatoa kernel: Found devices:
Mar 25 09:24:14 krakatoa kernel: 1. Astro BC Runway Port (12) at 0xfed00000 [10], versions 0x582, 0x0, 0xb
Mar 25 09:24:14 krakatoa kernel: 2. Elroy PCI Bridge (13) at 0xfed30000 [10/0], versions 0x782, 0x0, 0xa
Mar 25 09:24:14 krakatoa kernel: 3. Elroy PCI Bridge (13) at 0xfed32000 [10/1], versions 0x782, 0x0, 0xa
Mar 25 09:24:14 krakatoa kernel: 4. Elroy PCI Bridge (13) at 0xfed34000 [10/2], versions 0x782, 0x0, 0xa
Mar 25 09:24:14 krakatoa kernel: 5. Elroy PCI Bridge (13) at 0xfed38000 [10/4], versions 0x782, 0x0, 0xa
Mar 25 09:24:14 krakatoa kernel: 6. Elroy PCI Bridge (13) at 0xfed3c000 [10/6], versions 0x782, 0x0, 0xa
Mar 25 09:24:14 krakatoa kernel: 7. Forte W 2-way (0) at 0xfffa0000 [32], versions 0x5bd, 0x0, 0x4
Mar 25 09:24:14 krakatoa kernel: 8. Forte W 2-way (0) at 0xfffa2000 [34], versions 0x5bd, 0x0, 0x4
Mar 25 09:24:14 krakatoa kernel: 9. Memory (1) at 0xfed10200 [49], versions 0x88, 0x0, 0x9
Mar 25 09:24:14 krakatoa kernel: CPU(s): 2 x PA8500 (PCX-W) at 440.000000 MHz
Mar 25 09:24:14 krakatoa kernel: SBA found Astro 2.1 at 0xfed00000
Mar 25 09:24:14 krakatoa kernel: lba version TR2.1 (0x2) found at 0xfed30000
Mar 25 09:24:14 krakatoa kernel: lba version TR2.1 (0x2) found at 0xfed32000
Mar 25 09:24:14 krakatoa kernel: lba version TR2.1 (0x2) found at 0xfed34000
Mar 25 09:24:14 krakatoa kernel: lba version TR2.1 (0x2) found at 0xfed38000
Mar 25 09:24:14 krakatoa kernel: lba version TR2.1 (0x2) found at 0xfed3c000
Mar 25 09:24:14 krakatoa kernel: POSIX conformance testing by UNIFIX
Mar 25 09:24:14 krakatoa kernel: FP[1] enabled: Rev 1 Model 16
Mar 25 09:24:14 krakatoa kernel: SMP: Total 2 of 2 processors activated (1756.36 BogoMIPS noticed).
Mar 25 09:24:14 krakatoa kernel: Waiting on wait_init_idle (map = 0x2)
Mar 25 09:24:14 krakatoa kernel: All processors have done init_idle
Mar 25 09:24:14 krakatoa kernel: Linux NET4.0 for Linux 2.4
Mar 25 09:24:14 krakatoa kernel: Based upon Swansea University Computer Society NET3.039
Mar 25 09:24:14 krakatoa kernel: Initializing RT netlink socket
Mar 25 09:24:14 krakatoa kernel: Enabled soft power switch (polling mode, io=0xf0400804).
Mar 25 09:24:14 krakatoa kernel: SuperIO: Found NS87560 Legacy I/O device at 00:0e.1 (IRQ 64)
Mar 25 09:24:14 krakatoa kernel: SuperIO: Serial port 1 at 0x3f8
Mar 25 09:24:14 krakatoa kernel: SuperIO: Serial port 2 at 0x2f8
Mar 25 09:24:14 krakatoa kernel: SuperIO: Parallel port at 0x378
Mar 25 09:24:14 krakatoa kernel: SuperIO: Floppy controller at 0x3f0
Mar 25 09:24:14 krakatoa kernel: parport0: PC-style at 0x378, irq 101 [PCSPP(,...)]
Mar 25 09:24:14 krakatoa kernel: Starting kswapd
Mar 25 09:24:14 krakatoa kernel: pty: 256 Unix98 ptys configured
Mar 25 09:24:14 krakatoa kernel: Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Mar 25 09:24:14 krakatoa kernel: ttyS00 at port 0x03f8 (irq = 99) is a 16550A
Mar 25 09:24:14 krakatoa kernel: ttyS01 at port 0x02f8 (irq = 100) is a 16550A
Mar 25 09:24:14 krakatoa kernel: lp0: using parport0 (interrupt-driven).
Mar 25 09:24:14 krakatoa kernel: Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
Mar 25 09:24:14 krakatoa kernel: block: 128 slots per queue, batch=32
Mar 25 09:24:14 krakatoa kernel: RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
Mar 25 09:24:14 krakatoa kernel: Uniform Multi-Platform E-IDE driver Revision: 6.31
Mar 25 09:24:14 krakatoa kernel: ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Mar 25 09:24:14 krakatoa kernel: NS87415: IDE controller on PCI bus 00 dev 70
Mar 25 09:24:14 krakatoa kernel: NS87415: chipset revision 3
Mar 25 09:24:14 krakatoa kernel: NS87415: not 100%% native mode: will probe irqs later
Mar 25 09:24:14 krakatoa kernel:     ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:pio, hdb:pio
Mar 25 09:24:14 krakatoa kernel:     ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:pio, hdd:pio
Mar 25 09:24:14 krakatoa kernel: hda: SONY CD-ROM CDU4821, ATAPI CD/DVD-ROM drive
Mar 25 09:24:14 krakatoa kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 103
Mar 25 09:24:14 krakatoa kernel: hda: ATAPI 48X CD-ROM drive, 128kB Cache
Mar 25 09:24:14 krakatoa kernel: Uniform CD-ROM driver Revision: 3.12
Mar 25 09:24:14 krakatoa kernel: loop: loaded (max 8 devices)
Mar 25 09:24:14 krakatoa kernel: Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
Mar 25 09:24:14 krakatoa kernel: tulip0: no phy info, aborting mtable build
Mar 25 09:24:14 krakatoa kernel: tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
Mar 25 09:24:14 krakatoa kernel: eth0: Digital DS21143 Tulip rev 48 at 0x1000, 00:10:83:35:0D:63, IRQ 66.
Mar 25 09:24:14 krakatoa kernel: SCSI subsystem driver Revision: 1.00
Mar 25 09:24:14 krakatoa kernel: sym53c8xx: at PCI bus 0, device 15, function 0
Mar 25 09:24:14 krakatoa kernel: sym53c8xx: 53c896 detected
Mar 25 09:24:14 krakatoa kernel: sym53c8xx: at PCI bus 0, device 15, function 1
Mar 25 09:24:14 krakatoa kernel: sym53c8xx: 53c896 detected
Mar 25 09:24:14 krakatoa kernel: sym53c896-0: rev 0x4 on pci bus 0 device 15 function 0 irq 65
Mar 25 09:24:14 krakatoa kernel: sym53c896-0: ID 7, Fast-20, Parity Checking
Mar 25 09:24:14 krakatoa kernel: sym53c896-0: handling phase mismatch from SCRIPTS.
Mar 25 09:24:14 krakatoa kernel: sym53c896-1: rev 0x4 on pci bus 0 device 15 function 1 irq 65
Mar 25 09:24:14 krakatoa kernel: sym53c896-1: ID 7, Fast-40, Parity Checking
Mar 25 09:24:14 krakatoa kernel: sym53c896-1: handling phase mismatch from SCRIPTS.
Mar 25 09:24:14 krakatoa kernel: scsi0 : sym53c8xx-1.7.3c-20010512
Mar 25 09:24:14 krakatoa kernel: scsi1 : sym53c8xx-1.7.3c-20010512
Mar 25 09:24:14 krakatoa kernel:   Vendor: SEAGATE   Model: ST336752LC        Rev: 0002
Mar 25 09:24:14 krakatoa kernel:   Type:   Direct-Access                      ANSI SCSI revision: 03
Mar 25 09:24:14 krakatoa kernel: Attached scsi disk sda at scsi1, channel 0, id 6, lun 0
Mar 25 09:24:14 krakatoa kernel: sym53c896-1-<6,*>: FAST-40 WIDE SCSI 80.0 MB/s (25.0 ns, offset 31)
Mar 25 09:24:14 krakatoa kernel: SCSI device sda: 71687369 512-byte hdwr sectors (36704 MB)
Mar 25 09:24:14 krakatoa kernel: Partition check:
Mar 25 09:24:14 krakatoa kernel:  sda: sda1 sda2 sda3 < sda5 > sda4
Mar 25 09:24:14 krakatoa kernel: sticonsole_init: searching for STI ROMs
Mar 25 09:24:14 krakatoa kernel: BUG: Skipping previously registered driver: sti (native)
Mar 25 09:24:14 krakatoa kernel: md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
Mar 25 09:24:14 krakatoa kernel: md: Autodetecting RAID arrays.
Mar 25 09:24:14 krakatoa kernel: md: autorun ...
Mar 25 09:24:14 krakatoa kernel: md: ... autorun DONE.
Mar 25 09:24:14 krakatoa kernel: NET4: Linux TCP/IP 1.0 for NET4.0
Mar 25 09:24:14 krakatoa kernel: IP Protocols: ICMP, UDP, TCP
Mar 25 09:24:14 krakatoa kernel: IP: routing cache hash table of 512 buckets, 24Kbytes
Mar 25 09:24:14 krakatoa kernel: TCP: Hash tables configured (established 4096 bind 8192)
Mar 25 09:24:14 krakatoa kernel: NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Mar 25 09:24:14 krakatoa kernel: VFS: Mounted root (ext2 filesystem) readonly.
Mar 25 09:24:14 krakatoa kernel: NOT FREEING INITMEM (383k)
Mar 25 09:24:14 krakatoa kernel: Adding Swap: 497972k swap-space (priority -1)
Mar 25 09:24:14 krakatoa kernel: eth0: Setting full-duplex based on MII#1 link partner capability of 01e1.

The One That Breaks:
Mar 25 09:14:09 krakatoa syslogd 1.4.1#10: restart.
Mar 25 09:14:09 krakatoa kernel: klogd 1.4.1#10, log source = /proc/kmsg started.
Mar 25 09:14:09 krakatoa kernel: Inspecting /boot/System.map-2.4.17-32-smp
Mar 25 09:14:09 krakatoa kernel: Loaded 30310 symbols from /boot/System.map-2.4.17-32-smp.
Mar 25 09:14:09 krakatoa kernel: Symbols match kernel version 2.4.17.
Mar 25 09:14:09 krakatoa kernel: No module symbols loaded.
Mar 25 09:14:09 krakatoa kernel: Linux version 2.4.17-32-smp (root@paer) (gcc version 3.0.4) #1 SMP Sat Mar 16 17:55:20 MST 2002
Mar 25 09:14:09 krakatoa kernel: FP[0] enabled: Rev 1 Model 16
Mar 25 09:14:09 krakatoa kernel: The 32-bit Kernel has started...
Mar 25 09:14:09 krakatoa kernel: Determining PDC firmware type: System Map.
Mar 25 09:14:09 krakatoa kernel: model 00005bd0 00000491 00000000 00000002 776c6453 100000f0 00000008 000000b2 000000b2
Mar 25 09:14:09 krakatoa kernel: vers  00000201
Mar 25 09:14:09 krakatoa kernel: CPUID vers 17 rev 5 (0x00000225)
Mar 25 09:14:09 krakatoa kernel: model 9000/785/J5000
Mar 25 09:14:09 krakatoa kernel: Total Memory: 512 Mb
Mar 25 09:14:09 krakatoa kernel: pagetable_init
Mar 25 09:14:09 krakatoa kernel: On node 0 totalpages: 131072
Mar 25 09:14:09 krakatoa kernel: zone(0): 131072 pages.
Mar 25 09:14:09 krakatoa kernel: zone(1): 0 pages.
Mar 25 09:14:09 krakatoa kernel: zone(2): 0 pages.
Mar 25 09:14:09 krakatoa kernel: LCD display at f05d0008,f05d0000 registered
Mar 25 09:14:09 krakatoa kernel: Kernel command line: root=/dev/sda4 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
Mar 25 09:14:09 krakatoa kernel: Console: colour dummy device 160x64
Mar 25 09:14:09 krakatoa kernel: Calibrating delay loop... 878.18 BogoMIPS
Mar 25 09:14:09 krakatoa kernel: Memory: 507900k available
Mar 25 09:14:09 krakatoa kernel: Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Mar 25 09:14:09 krakatoa kernel: Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
Mar 25 09:14:09 krakatoa kernel: Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
Mar 25 09:14:09 krakatoa kernel: Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Mar 25 09:14:09 krakatoa kernel: Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Mar 25 09:14:09 krakatoa kernel: Searching for devices...
Mar 25 09:14:09 krakatoa kernel: Found devices:
Mar 25 09:14:09 krakatoa kernel: 1. Astro BC Runway Port (12) at 0xfed00000 [10], versions 0x582, 0x0, 0xb
Mar 25 09:14:09 krakatoa kernel: 2. Elroy PCI Bridge (13) at 0xfed30000 [10/0], versions 0x782, 0x0, 0xa
Mar 25 09:14:09 krakatoa kernel: 3. Elroy PCI Bridge (13) at 0xfed32000 [10/1], versions 0x782, 0x0, 0xa
Mar 25 09:14:09 krakatoa kernel: 4. Elroy PCI Bridge (13) at 0xfed34000 [10/2], versions 0x782, 0x0, 0xa
Mar 25 09:14:09 krakatoa kernel: 5. Elroy PCI Bridge (13) at 0xfed38000 [10/4], versions 0x782, 0x0, 0xa
Mar 25 09:14:09 krakatoa kernel: 6. Elroy PCI Bridge (13) at 0xfed3c000 [10/6], versions 0x782, 0x0, 0xa
Mar 25 09:14:09 krakatoa kernel: 7. Forte W 2-way (0) at 0xfffa0000 [32], versions 0x5bd, 0x0, 0x4
Mar 25 09:14:09 krakatoa kernel: 8. Forte W 2-way (0) at 0xfffa2000 [34], versions 0x5bd, 0x0, 0x4
Mar 25 09:14:09 krakatoa kernel: 9. Memory (1) at 0xfed10200 [49], versions 0x88, 0x0, 0x9
Mar 25 09:14:09 krakatoa kernel: CPU(s): 2 x PA8500 (PCX-W) at 440.000000 MHz
Mar 25 09:14:09 krakatoa kernel: SBA found Astro 2.1 at 0xfed00000
Mar 25 09:14:09 krakatoa kernel: lba version TR2.1 (0x2) found at 0xfed30000
Mar 25 09:14:09 krakatoa kernel: lba version TR2.1 (0x2) found at 0xfed32000
Mar 25 09:14:09 krakatoa kernel: lba version TR2.1 (0x2) found at 0xfed34000
Mar 25 09:14:09 krakatoa kernel: lba version TR2.1 (0x2) found at 0xfed38000
Mar 25 09:14:09 krakatoa kernel: lba version TR2.1 (0x2) found at 0xfed3c000
Mar 25 09:14:09 krakatoa kernel: POSIX conformance testing by UNIFIX
Mar 25 09:14:09 krakatoa kernel: FP[1] enabled: Rev 1 Model 16
Mar 25 09:14:09 krakatoa kernel: SMP: Total 2 of 2 processors activated (1756.36 BogoMIPS noticed).
Mar 25 09:14:09 krakatoa kernel: Waiting on wait_init_idle (map = 0x2)
Mar 25 09:14:09 krakatoa kernel: All processors have done init_idle
Mar 25 09:14:09 krakatoa kernel: Linux NET4.0 for Linux 2.4
Mar 25 09:14:09 krakatoa kernel: Based upon Swansea University Computer Society NET3.039
Mar 25 09:14:09 krakatoa kernel: Initializing RT netlink socket
Mar 25 09:14:09 krakatoa kernel: Enabled soft power switch (polling mode, io=0xf0400804).
Mar 25 09:14:09 krakatoa kernel: SuperIO: Found NS87560 Legacy I/O device at 00:0e.1 (IRQ 64)
Mar 25 09:14:09 krakatoa kernel: SuperIO: Serial port 1 at 0x3f8
Mar 25 09:14:09 krakatoa kernel: SuperIO: Serial port 2 at 0x2f8
Mar 25 09:14:09 krakatoa kernel: SuperIO: Parallel port at 0x378
Mar 25 09:14:09 krakatoa kernel: SuperIO: Floppy controller at 0x3f0
Mar 25 09:14:09 krakatoa kernel: SuperIO: ACPI at 0x7e0
Mar 25 09:14:09 krakatoa kernel: SuperIO: USB regulator enabled
Mar 25 09:14:09 krakatoa kernel: parport0: PC-style at 0x378, irq 101 [PCSPP(,...)]
Mar 25 09:14:09 krakatoa kernel: Starting kswapd
Mar 25 09:14:09 krakatoa kernel: Journalled Block Device driver loaded
Mar 25 09:14:09 krakatoa kernel: PCI graphic ROM found at f7000000 (128 kB), fb @ fb000000 (16 MB)
Mar 25 09:14:09 krakatoa kernel: STI word mode ROM at f7000044, hpa=fb000000
Mar 25 09:14:09 krakatoa kernel: STI word mode ROM, id 35acda16-9a02587, conforms to spec rev. 8.0c
Mar 25 09:14:09 krakatoa kernel: STI device: HPA4982A
Mar 25 09:14:09 krakatoa kernel: pty: 256 Unix98 ptys configured
Mar 25 09:14:09 krakatoa kernel: Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Mar 25 09:14:09 krakatoa kernel: ttyS00 at port 0x03f8 (irq = 99) is a 16550A
Mar 25 09:14:09 krakatoa kernel: ttyS01 at port 0x02f8 (irq = 100) is a 16550A
Mar 25 09:14:09 krakatoa kernel: lp0: using parport0 (interrupt-driven).
Mar 25 09:14:09 krakatoa kernel: Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
Mar 25 09:14:09 krakatoa kernel: block: 128 slots per queue, batch=32
Mar 25 09:14:09 krakatoa kernel: RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
Mar 25 09:14:09 krakatoa kernel: Uniform Multi-Platform E-IDE driver Revision: 6.31
Mar 25 09:14:09 krakatoa kernel: ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Mar 25 09:14:09 krakatoa kernel: NS87415: IDE controller on PCI bus 00 dev 70
Mar 25 09:14:09 krakatoa kernel: NS87415: chipset revision 3
Mar 25 09:14:09 krakatoa kernel: NS87415: not 100%% native mode: will probe irqs later
Mar 25 09:14:09 krakatoa kernel:     ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:pio, hdb:pio
Mar 25 09:14:09 krakatoa kernel:     ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:pio, hdd:pio
Mar 25 09:14:09 krakatoa kernel: hda: SONY CD-ROM CDU4821, ATAPI CD/DVD-ROM drive
Mar 25 09:14:09 krakatoa kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 103
Mar 25 09:14:09 krakatoa kernel: hda: ATAPI 48X CD-ROM drive, 128kB Cache
Mar 25 09:14:09 krakatoa kernel: Uniform CD-ROM driver Revision: 3.12
Mar 25 09:14:09 krakatoa kernel: loop: loaded (max 8 devices)
Mar 25 09:14:09 krakatoa kernel: Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
Mar 25 09:14:09 krakatoa kernel: tulip0: no phy info, aborting mtable build
Mar 25 09:14:09 krakatoa kernel: tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
Mar 25 09:14:09 krakatoa kernel: eth0: Digital DS21143 Tulip rev 48 at 0x1000, 00:10:83:35:0D:63, IRQ 66.
Mar 25 09:14:09 krakatoa kernel: SCSI subsystem driver Revision: 1.00
Mar 25 09:14:09 krakatoa kernel: sym53c8xx: at PCI bus 0, device 15, function 0
Mar 25 09:14:09 krakatoa kernel: sym53c8xx: 53c896 detected
Mar 25 09:14:09 krakatoa kernel: sym53c8xx: at PCI bus 0, device 15, function 1
Mar 25 09:14:09 krakatoa kernel: sym53c8xx: 53c896 detected
Mar 25 09:14:09 krakatoa kernel: sym53c896-0: rev 0x4 on pci bus 0 device 15 function 0 irq 65
Mar 25 09:14:09 krakatoa kernel: sym53c896-0: ID 7, Fast-20, Parity Checking
Mar 25 09:14:09 krakatoa kernel: sym53c896-0: handling phase mismatch from SCRIPTS.
Mar 25 09:14:09 krakatoa kernel: sym53c896-1: rev 0x4 on pci bus 0 device 15 function 1 irq 65
Mar 25 09:14:09 krakatoa kernel: sym53c896-1: ID 7, Fast-40, Parity Checking
Mar 25 09:14:09 krakatoa kernel: sym53c896-1: handling phase mismatch from SCRIPTS.
Mar 25 09:14:09 krakatoa kernel: scsi0 : sym53c8xx-1.7.3c-20010512
Mar 25 09:14:09 krakatoa kernel: scsi1 : sym53c8xx-1.7.3c-20010512
Mar 25 09:14:09 krakatoa kernel:   Vendor: SEAGATE   Model: ST336752LC        Rev: 0002
Mar 25 09:14:09 krakatoa kernel:   Type:   Direct-Access                      ANSI SCSI revision: 03
Mar 25 09:14:09 krakatoa kernel: Attached scsi disk sda at scsi1, channel 0, id 6, lun 0
Mar 25 09:14:09 krakatoa kernel: sym53c896-1-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 31)
Mar 25 09:14:09 krakatoa kernel: SCSI device sda: 71687369 512-byte hdwr sectors (36704 MB)
Mar 25 09:14:09 krakatoa kernel: Partition check:
Mar 25 09:14:09 krakatoa kernel:  sda: sda1 sda2 sda3 < sda5 > sda4
Mar 25 09:14:09 krakatoa kernel: sticonsole_init: searching for STI ROMs
Mar 25 09:14:09 krakatoa kernel: Console: switching to colour STI console 160x64
Mar 25 09:14:09 krakatoa kernel: md: linear personality registered as nr 1
Mar 25 09:14:09 krakatoa kernel: md: raid0 personality registered as nr 2
Mar 25 09:14:09 krakatoa kernel: md: raid1 personality registered as nr 3
Mar 25 09:14:09 krakatoa kernel: md: raid5 personality registered as nr 4
Mar 25 09:14:09 krakatoa kernel: raid5: measuring checksumming speed
Mar 25 09:14:09 krakatoa kernel:    8regs     :  1060.000 MB/sec
Mar 25 09:14:09 krakatoa kernel:    8regs_prefetch:  1060.000 MB/sec
Mar 25 09:14:09 krakatoa kernel:    32regs    :   752.800 MB/sec
Mar 25 09:14:09 krakatoa kernel:    32regs_prefetch:   753.200 MB/sec
Mar 25 09:14:09 krakatoa kernel: raid5: using function: 8regs_prefetch (1060.000 MB/sec)
Mar 25 09:14:09 krakatoa kernel: md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
Mar 25 09:14:09 krakatoa kernel: md: Autodetecting RAID arrays.
Mar 25 09:14:09 krakatoa kernel: md: autorun ...
Mar 25 09:14:09 krakatoa kernel: md: ... autorun DONE.
Mar 25 09:14:09 krakatoa kernel: NET4: Linux TCP/IP 1.0 for NET4.0
Mar 25 09:14:09 krakatoa kernel: IP Protocols: ICMP, UDP, TCP, IGMP
Mar 25 09:14:09 krakatoa kernel: IP: routing cache hash table of 512 buckets, 24Kbytes
Mar 25 09:14:09 krakatoa kernel: TCP: Hash tables configured (established 4096 bind 8192)
Mar 25 09:14:09 krakatoa kernel: NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Mar 25 09:14:09 krakatoa kernel: VFS: Mounted root (ext2 filesystem) readonly.
Mar 25 09:14:09 krakatoa kernel: NOT FREEING INITMEM (388k)
Mar 25 09:14:09 krakatoa kernel: Adding Swap: 497972k swap-space (priority -1)
Mar 25 09:14:09 krakatoa kernel: eth0: Setting full-duplex based on MII#1 link partner capability of 01e1.




From - Thu Nov 08 21:22:13 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Using Audio card on 735/99
Date: Mon, 25 Mar 2002 22:06:38 +0100
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Approved: news@gmane.org
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References: <200203242042.g2OKgET57280@smtp.monmouth.com> <20020324210214.E28384@parcelfarce.linux.theplanet.co.uk> <200203250156.g2P1ufT92697@smtp.monmouth.com>
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To: "Vlad D. Markov" <markov@monmouth.com>,
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Hi Vlad,

couldn't you retry with mpg123 ? 
xmms is often very slow....

Helge

On Monday 25 March 2002 02:46, Vlad D. Markov wrote:
> Moderate success.
>
> 1. aumix worked.
> 2. xmms hung forever.
> 3. I wrote an au file to /dev/dsp. I thought nothing happened. Minutes
> later I was surprised to hear the file over my headphones. I have been
> unable to repeat this.
>
> On Sunday 24 March 2002 04:02 pm, Matthew Wilcox wrote:
> > [this is a kernel-related question, moving discussion to parisc-linux]
> >
> > On Sun, Mar 24, 2002 at 03:32:53PM -0500, Vlad D. Markov wrote:
> > > I would like to use my audio card on my 735/99 but have failed so far.
> > >
> > > I have used various kernel versions, the last attempt was with a kernel
> > > drawn from cvs on 3/21/02, Linux version 2.4.18-pa7. dmesg doesn't list
> > > the harmony card as found. The harmony driver was compiled with the
> > > kernel.
> >
> > Harmony doesn't claim to support that device.  I don't know that it will
> > work ... but you might be lucky :-)
> >
> > Try adding this patch and let's see what happens:
> >
> > --- drivers/sound/harmony.c     2002/02/14 19:02:21     1.25
> > +++ drivers/sound/harmony.c     2002/03/24 20:52:31
> > @@ -1244,7 +1244,10 @@ out_err:
> >
> >
> >  static struct parisc_device_id harmony_tbl[] = {
> > +       { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007A },
> >         { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007B },
> > +       { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007E },
> > +       { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007F },
> >         { 0, }
> >  };
> >
> >
> > This makes harmony pick up all the Audio devices, including some it
> > almost certainly won't support (eg 705 / 710 audio, which i understand
> > to be completely different).  But maybe 735's sound will Just Work.
> > Let's hope.




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Subject: [parisc-linux] Building cvs 2.4.18
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I just checked out the latest cvs and I am trying to build it.
I copied the arch/parisc/debian-configs/32-smp to .config and ran
make-kpkg -rev jeremyd.0 kernel_image .  It clicks away for a while and
then dies on pcnet32.  I don't need pcnet32, so I removed it from the
config and went on.  Everything build successfully, but the depmod died.
Here's the output

depmod: *** Unresolved symbols in
/usr/src/linux/debian/tmp-image/lib/modules/2.4.18-pa8/kernel/net/ipv4/netfilter/ip_tables.o
depmod:         smp_num_cpus
depmod:         __cpu_number_map
depmod: *** Unresolved symbols in
/usr/src/linux/debian/tmp-image/lib/modules/2.4.18-pa8/kernel/net/ipv4/netfilter/ipchains.o
depmod:         smp_num_cpus
depmod:         __cpu_number_map
make[2]: *** [_modinst_post] Error 1


-- 
Endless the world's turn, endless the sun's spinning
Endless the quest;
I turn again, back to my own beginning,
And here, find rest.




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Subject: [parisc-linux] Re: Using Audio card on 735/99
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Eureka - I am happily listening listening to my mp3s using mpg123 on my 
735/99. Thank you very much.

I get some errors when loading the files:
Mar 25 21:36:20 grumpy kernel: harmony: unsupported sound format 0x0008 
requested.
Mar 25 21:36:20 grumpy kernel: harmony: unsupported sound format 0x0040 
requested.
Mar 25 21:36:20 grumpy kernel: harmony: unsupported sound format 0x0080 
requested.
Mar 25 21:36:20 grumpy kernel: harmony: unsupported sound format 0x0008 
requested.
Mar 25 21:36:20 grumpy kernel: harmony: unsupported sound format 0x0040 
requested.
Mar 25 21:36:20 grumpy kernel: harmony: unsupported sound format 0x0080 
requested.


On Sunday 24 March 2002 04:02 pm, Matthew Wilcox wrote:
> [this is a kernel-related question, moving discussion to parisc-linux]
>
> On Sun, Mar 24, 2002 at 03:32:53PM -0500, Vlad D. Markov wrote:
> > I would like to use my audio card on my 735/99 but have failed so far.
> >
> > I have used various kernel versions, the last attempt was with a kernel
> > drawn from cvs on 3/21/02, Linux version 2.4.18-pa7. dmesg doesn't list
> > the harmony card as found. The harmony driver was compiled with the
> > kernel.
>
> Harmony doesn't claim to support that device.  I don't know that it will
> work ... but you might be lucky :-)
>
> Try adding this patch and let's see what happens:
>
> --- drivers/sound/harmony.c     2002/02/14 19:02:21     1.25
> +++ drivers/sound/harmony.c     2002/03/24 20:52:31
> @@ -1244,7 +1244,10 @@ out_err:
>
>
>  static struct parisc_device_id harmony_tbl[] = {
> +       { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007A },
>         { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007B },
> +       { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007E },
> +       { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007F },
>         { 0, }
>  };
>
>
> This makes harmony pick up all the Audio devices, including some it
> almost certainly won't support (eg 705 / 710 audio, which i understand
> to be completely different).  But maybe 735's sound will Just Work.
> Let's hope.



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This also seems to apply to 2.4.18 from cvs co at 5 pm west coast time.
The config I used was arch/parisc/debian-configs/32-smp with the following
changes: removed netfilter and pcnet32 modules as they were breaking the
build.


-- 
You have a deep appreciation of the arts and music.




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Jeremy Drake wrote:
> config and went on.  Everything build successfully, but the depmod died.
> Here's the output
> 
> depmod: *** Unresolved symbols in
> /usr/src/linux/debian/tmp-image/lib/modules/2.4.18-pa8/kernel/net/ipv4/netfil
>   ter/ip_tables.o
> depmod:         smp_num_cpus
> depmod:         __cpu_number_map

hmm...this must have recently broke since I've built plenty
of SMP kernels with iptables enabled. I've stopped building SMP
for 2.4.18 since SMP is b0rken at the moment. But i don't think
we changed anything related to this since I've stopped...can you
run "make clean;make dep; make vmlinux;make modules" again?

> depmod: *** Unresolved symbols in
> /usr/src/linux/debian/tmp-image/lib/modules/2.4.18-pa8/kernel/net/ipv4/netfil
>   ter/ipchains.o
> depmod:         smp_num_cpus
> depmod:         __cpu_number_map

If you can, ditch ipchains. If you need examples on how to
use iptables look at ftp.p-l.o:patches/a500/firewall.

grant



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Grant Grundler wrote:
> hmm...this must have recently broke since I've built plenty
> of SMP kernels with iptables enabled.

Sorry - I checked and my SMP builds had iptables statically linked in.
My non-SMP builds had iptables as a module. This should be easy to
fix (add missing EXPORT_SYMS to arch/parisc/kernel/parisc_ksyms.c).
If no one beats me to it, I'll do that tomorrow.

grant



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This is a multi-part message in MIME format.
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	Hi all.
I'm looking for function that manage disk layout. In fact I'm looking
for functions that are able to return start block and end block of
a partition. Do you know if it exists (I'm sure that it exists), and where it is ?
By the way, I'm looking for a function (or structure) that return the HPA 
and the SPA of a disk (but for this I find nothing, except for the boot 
disk in page0).

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From - Thu Nov 08 21:22:14 2018
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On Tue, Mar 26, 2002 at 08:09:40AM +0100, Bruno Vidal wrote:
> I'm looking for function that manage disk layout. In fact I'm looking
> for functions that are able to return start block and end block of
> a partition. Do you know if it exists (I'm sure that it exists), and where it is ?
> By the way, I'm looking for a function (or structure) that return the HPA 
> and the SPA of a disk (but for this I find nothing, except for the boot 
> disk in page0).

Tried fs/partitions/msdos.c?

How can a disc have HPA and SPA?  Are you trying to find the HPA/SPA of
the disc's controller?

-- 
Revolutions do not require corporate support.



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From: Peter Lavender <plaven@bigpond.net.au>
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Subject: [parisc-linux] performance?
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Hi Everyone,

I know I have asked this sort of thing before, but I'm doing c++ this
semester and as such I have been using the hppa box (715/64) wiht 128
meg ram as my "dev" box.

Compiling and running of a program that finds perfect numbers upto
10000 is somewhat slow.. but that's ok..

It wasn't until I compiled it on my p90 with 48 meg ram running a a
zillion services and daemons that I noticed just how slow the 715 is.
Running the program proved this even further.

I thought the 715/64 was about similar in performance.. but this
simple observation shows this not to be the case.

As a webserver the 715 is fine... but I'm now thinking that when these
exercises and assignments start getting bigger that the 715 will be
just a little too slow for my liking.  This isn't a bad thing.. just
an observation...



Regards,

Pete.

-- 
				Due to a lack of imagination, 
				this signature will remain 
				under construction indefinately.



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Subject: [parisc-linux] does audio works on 712,715 and 735?
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hi,

I ear that audio works with 735!
Does it work with 712 and 715??
I tried a few month ago on 712, but it didn't work... I didn't upgrade since
that time, from which kernel/packages versions could it work?

best regards

jl.



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Subject: Re: [parisc-linux] does audio works on 712,715 and 735?
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hi,

>Does it work with 712 and 715??

With 712 it works fine.
I've got a 712/60 and it works fine while playing MP3.

>I tried a few month ago on 712, but it didn't work... I didn't upgrade=
 since
>that time, from which kernel/packages versions could it work?

You need the harmony driver.
I think all Kernel > 2.4.17 do have this driver.

cya,
Tilo

|[ Tilo Jandt, K=F6rnerstra=DFe 8, D-09306 Rochlitz         ]|
|[ mailto:tilo@jandt-online.net ]  [ ICQ: 73832493              ]|
|[ Phone: +49 179 5333 255   ]  [ Fax: +49 3737 771478  ]|





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On Tue, Mar 26, 2002 at 10:43:58PM +1100, Peter Lavender wrote:
> It wasn't until I compiled it on my p90 with 48 meg ram running a a
> zillion services and daemons that I noticed just how slow the 715 is.
> Running the program proved this even further.

Would you mind posting some numbers?

Also, let's try to figure out what other variables are a factor.  Can you
compare gcc-3.0 on your x86 to the current compiler?

-- 
Revolutions do not require corporate support.



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On Mon, 25 Mar 2002, Grant Grundler wrote:

> I've stopped building SMP
> for 2.4.18 since SMP is b0rken at the moment.

I kinda noticed that when my box crashed again.  For now, I'll stop
messing with new versions and stick with my nice, stable 2.4.17-32-smp
debian version 23.  Debian version 32 crashes the box too.  Unfortunately,
23 seems to not detect my video card. I'll have more info when I get some
more time to experiment..

Could you let me know when smp stabilizes?  I may try non-smp today as a
last resort, but I hate wasting hardware ;)


-- 
	The Hitchhiker's Guide to the Galaxy has a few things to say on
the subject of towels.
	Most importantly, a towel has immense psychological value.  For
some reason, if a non-hitchhiker discovers that a hitchhiker has his towel
with him, he will automatically assume that he is also in possession of a
toothbrush, washcloth, flask, gnat spray, space suit, etc., etc.  Furthermore,
the non-hitchhiker will then happily lend the hitchhiker any of these or
a dozen other items that he may have "lost".  After all, any man who can
hitch the length and breadth of the Galaxy, struggle against terrible odds,
win through and still know where his towel is, is clearly a man to be
reckoned with.
		-- Douglas Adams, "The Hitchhiker's Guide to the Galaxy"




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I've finally got a fairly stable setup - the latest 2.4.18-pa11 single
proc.  Now I've got a USB card, and I am able to make the graphics console
and hid keyboard working.  Now I've moved on to X.  I read somewhere, tho
I forget where, that I have to do fbset -i to get the resolution.  This
reports no such device.

So, I'd like a pointer to an X on J5000 setup howto and a little help
figuring out the fb stuff.


TIA


-- 
If you sell diamonds, you cannot expect to have many customers.
But a diamond is a diamond even if there are no customers.
		-- Swami Prabhupada




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Jeremy,

When the system booted up, did you see Tux?  If you saw the Tux
log that means the fb is setup properly and fbset -i should work.

If you didn't see tux that means the fb is not working for your card.

hope that helps!

- Ryan

On Tue, 2002-03-26 at 18:19, Jeremy Drake wrote:
> I've finally got a fairly stable setup - the latest 2.4.18-pa11 single
> proc.  Now I've got a USB card, and I am able to make the graphics console
> and hid keyboard working.  Now I've moved on to X.  I read somewhere, tho
> I forget where, that I have to do fbset -i to get the resolution.  This
> reports no such device.
> 
> So, I'd like a pointer to an X on J5000 setup howto and a little help
> figuring out the fb stuff.
> 
> 
> TIA
> 
> 
> -- 
> If you sell diamonds, you cannot expect to have many customers.
> But a diamond is a diamond even if there are no customers.
> 		-- Swami Prabhupada
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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> I've finally got a fairly stable setup - the latest 2.4.18-pa11 single
> proc.  Now I've got a USB card, and I am able to make the graphics console
> and hid keyboard working.  Now I've moved on to X.  I read somewhere, tho
> I forget where, that I have to do fbset -i to get the resolution.  This
> reports no such device.
> 
> So, I'd like a pointer to an X on J5000 setup howto and a little help
> figuring out the fb stuff.
> 
> 
> TIA
>

I believe the J5000 has a Visualize EG PCI card, and that should
be working.

fbset -i will give you all the geometry you need, but won't work
without the compiled fbdev.

You need to go into [Console Drivers] and turn on the frame-buffer
support for your system ("Generic STI Framebuffer Support").

Cheers,
Carlos.



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Sorry, no tux.  But, due to extenuating circumstances I had to boot
serial console, so the display wasn't initted until late in the boot
process.
So, if the fb is not working, why wouldn't it be and what can I do to make
it work.
Here's the /proc/pci entry for the card

  Bus  4, device   7, function  0:
    3D controller: PCI device 103c:108b (Hewlett-Packard Company) (rev 3).
      IRQ 160.
      Master Capable.  Latency=255.
      Prefetchable 64 bit memory at 0xfb000000 [0xfbffffff].
      Non-prefetchable 64 bit memory at 0xfa000000 [0xfaffffff].

Here's from dmesg
Linux version 2.4.18-pa11 (root@krakatoa) (gcc version 3.0.4) #1 Tue Mar 26 16:24:33 PST 2002
...
STI PCI ROM enabled at 0xf7000000
PCI graphic ROM found at f7000000 (128 kB), fb @ fb000000 (16 MB)
PCI region 0: fb000000 with 16384 kB
PCI region 1: 00000000 with 0 kB
PCI region 2: fa000000 with 16384 kB
PCI region 3: 00000000 with 0 kB
PCI region 4: 00000000 with 0 kB
PCI region 5: 00000000 with 0 kB
PCI region 6: f7000000 with 128 kB
PCI region 7: 00000000 with 0 kB
PCI region 8: 00000000 with 0 kB
PCI region 9: 00000000 with 0 kB
PCI region 10: 00000000 with 0 kB
PCI region 11: 00000000 with 0 kB
Trying PCI STI ROM at f7000000, PCI hpa at fb000000
STI word mode ROM at f7000044, hpa=fb000000
STI word mode ROM, id 35acda16-9a02587, conforms to spec rev. 8.0c
STI PCI ROM disabled
STI device: HPA4982A
...
sticonsole_init: searching for STI ROMs
Console: switching to colour STI console 160x64


 On 26 Mar 2002, Ryan Bradetich wrote:

> Jeremy,
>
> When the system booted up, did you see Tux?  If you saw the Tux
> log that means the fb is setup properly and fbset -i should work.
>
> If you didn't see tux that means the fb is not working for your card.
>
> hope that helps!
>
> - Ryan
>
> On Tue, 2002-03-26 at 18:19, Jeremy Drake wrote:
> > I've finally got a fairly stable setup - the latest 2.4.18-pa11 single
> > proc.  Now I've got a USB card, and I am able to make the graphics console
> > and hid keyboard working.  Now I've moved on to X.  I read somewhere, tho
> > I forget where, that I have to do fbset -i to get the resolution.  This
> > reports no such device.
> >
> > So, I'd like a pointer to an X on J5000 setup howto and a little help
> > figuring out the fb stuff.
> >
> >
> > TIA
> >
> >
> > --
> > If you sell diamonds, you cannot expect to have many customers.
> > But a diamond is a diamond even if there are no customers.
> > 		-- Swami Prabhupada
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>

-- 
	In the beginning there was data.  The data was without form and
null, and darkness was upon the face of the console; and the Spirit of
IBM was moving over the face of the market.  And DEC said, "Let there
be registers"; and there were registers.  And DEC saw that they
carried; and DEC separated the data from the instructions.  DEC called
the data Stack, and the instructions they called Code.  And there was
evening and there was morning, one interrupt.
		-- Rico Tudor, "The Story of Creation or, The Myth of Urk"




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On Tue, 26 Mar 2002, Carlos O'Donell Jr. wrote:

> I believe the J5000 has a Visualize EG PCI card, and that should
> be working.
>
> fbset -i will give you all the geometry you need, but won't work
> without the compiled fbdev.
>
> You need to go into [Console Drivers] and turn on the frame-buffer
> support for your system ("Generic STI Framebuffer Support").

It is already there

-- 
QOTD:
	"I tried buying a goat instead of a lawn tractor; had to return
	it though.  Couldn't figure out a way to connect the snow blower."




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Jeremy,

> STI device: HPA4982A

This device does not appear to be support in the
drivers/video/sti/stifb.c.  A quick google search
didn't tell me which family this card belong to,
so I can't even give you a suggestion to try an 
add it to one of the supported groups to see if
that works.  Maybe one of the STI/fb hackers on
this list will have more info for you.

sorry :(

- Ryan





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Quoth Grant Grundler:
> If you can, ditch ipchains. If you need examples on how to
> use iptables look at ftp.p-l.o:patches/a500/firewall.

Grant, are you quite sure of that location?  I can't see a /patches/a500
directory on the server, and didn't try dumping an ls -alR to look for
it as it's not felt to be polite practise on FTP servers these days.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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* Matthew Wilcox (willy@debian.org) wrote:


> > It wasn't until I compiled it on my p90 with 48 meg ram running a a
> > zillion services and daemons that I noticed just how slow the 715 is.
> > Running the program proved this even further.
> 
> Would you mind posting some numbers?
> 
> Also, let's try to figure out what other variables are a factor.  Can you
> compare gcc-3.0 on your x86 to the current compiler?

The p90 system is an old stock install of redhat 6.0 with very little
done to the kernel.. it was recompiled with certain drivers built into
the kernel but that's about it.

[pete@piglet brad]$ g++ --version
egcs-2.91.66

The program is fairly simple in what it does.  

I really don't want to install gcc-3.0 on this system as it really is
a stable workhorse and I'd rather not break.

But even running time is somewhat of a difference... lets see:

This is a very simple shell script that outputs date at start and
finish of the program running.. I'm no guru really.. :)

Run on HPPA 715/64

Wed Mar 27 18:02:20 EST 2002
Wed Mar 27 18:02:50 EST 2002

Run on P90

Wed Mar 27 18:00:32 EST 2002
Wed Mar 27 18:00:39 EST 2002


Just quickly you can see that it took 7 secs to do the same thing on
the p90 and 30 seconds on the hppa box.

The p90 runs alot of daemons, substantially more than the hppa box..
but this is a surprise.. I have some thoughts about the compiling, but
none what so ever about the general difference between the arches... 

I just thought it was of interest as I thought the hppa box was of
similar processing capability to the p90.


Regards,

Pete.

-- 
				Due to a lack of imagination, 
				this signature will remain 
				under construction indefinately.



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Ryan Bradetich wrote:

>Jeremy,
>
>>STI device: HPA4982A
>>
>
>This device does not appear to be support in the
>drivers/video/sti/stifb.c.  A quick google search
>
That would be a Visualize-FXe. It is completely different than any of 
the supported devices.




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On Wed, 27 Mar 2002, Chuck Slivkoff wrote:

> That would be a Visualize-FXe. It is completely different than any of
> the supported devices.

Does this mean I don't get any X?  Maybe I could be of some help testing
wise, or possibly coding if no one else is.  I have little free time, and
even less with physical access to the box, so it would be difficult.  I
have some C experience, and x86 assembly.  This HP arch is completely new
to me, however, and I have never tried kernel development.


-- 
Leona, I want to CONFESS things to you ... I want to WRAP you in a SCARLET
ROBE trimmed with POLYVINYL CHLORIDE ... I want to EMPTY your ASHTRAYS ...




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FYI, on a 715/75 I run SETI@home and was able to process 4 units at an 
average rate of ~99 hours/unit. Currently, I'm using a 715/80, but it 
doesn't look to be doing much better.

-- 
      Rafael




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trying to install .93 on hp 9000 c110 a4200a
getting error when installing=20
ncr53c720-0 Suspicious scsi data while ressetting the bus

ncr53c720-0 dp1,dp15-8, dp0, d7-0, =
rst,req,ack,bsy,scl.atn,msg,c/d,i/o=3D0x1a2da9,expecting0x100

thank you
dan mclaughlin

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2600.0" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>trying to install .93 on hp 9000 c110=20
a4200a</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>getting error when installing =
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>ncr53c720-0 Suspicious scsi data while =
ressetting=20
the bus</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>ncr53c720-0 dp1,dp15-8, dp0, d7-0,=20
rst,req,ack,bsy,scl.atn,msg,c/d,i/o=3D0x1a2da9,expecting0x100</FONT></DIV=
>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>thank you</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>dan =
mclaughlin</FONT></DIV></BODY></HTML>

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From: Marc Zyngier <mzyngier@freesurf.fr>
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Subject: Re: [parisc-linux] hp900 c110 scsi error
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>>>>> "dan" == dan mclaughlin <dmclaug881@hotmail.com> writes:

dan> ncr53c720-0 Suspicious scsi data while ressetting the bus
dan> ncr53c720-0 dp1,dp15-8, dp0, d7-0,
dan> rst,req,ack,bsy,scl.atn,msg,c/d,i/o=0x1a2da9,expecting0x100

Looks like a SCSI terminator problem.

        M.
-- 
Places change, faces change. Life is so very strange.



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I finally managed to boot the B180L HP computer. I'm really amazed. 

I just burnt the CD once again, but using a Linux computer, and the HP boot !!!

I'm amazed as the first time I used Nero which is quite well know under Windows ?

Anyway, thanks to all of those who helped me!!!



---------------------------------
Yahoo! Mail -- Une adresse @yahoo.fr gratuite et en franais !

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<P>I finally managed to boot the B180L HP computer. I'm really amazed. </P>
<P>I just burnt the CD once again, but using a Linux computer, and the&nbsp;HP boot !!!</P>
<P>I'm amazed as the first time I used Nero which is quite well know under Windows ?</P>
<P>Anyway, thanks to all of those who helped me!!!</P><p><br><hr size=1><a href="http://fr.mail.yahoo.com">Yahoo! Mail</a> -- Une adresse @yahoo.fr gratuite et en franais !<br>
--0-1666059262-1017243032=:16581--



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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] Patch for PA 2.0, 32-bit kernels on systems with > 2GB RAM
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Hello parisc-linux hackers,

The 2.4.18-pa6 patch broke 32-bit kernel on PA 2.0 systems if the system
has > 2GB RAM.  This patch fixes the problem for my C200+ with > 2GB
RAM, and continues to boots with < 2GB RAM.

The basic problem was that the kernel was performing simple sign
extension instead of F-Extension.

I plan on committing this patch into CVS in a couple of days unless it
causes problems on someones configuration.  Please test and let me
know if you encounter problems.

Thanks,

- Ryan

P.S. Thanks to Thomas Bogendoerfer for helping to identify the cause,
and to LaMont Jones for providing the assembly instructions to fix the
problem without using a branch instruction :)



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Index: arch/parisc/kernel/entry.S
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux/arch/parisc/kernel/entry.S,v
retrieving revision 1.91
diff -u -p -r1.91 entry.S
--- arch/parisc/kernel/entry.S	2002/03/20 05:08:58	1.91
+++ arch/parisc/kernel/entry.S	2002/03/27 04:28:11
@@ -1352,12 +1352,10 @@ dtlb_miss_20:
=20
 	/* Get rid of prot bits and convert to page addr for idtlbt */
=20
-	/* FIXME - sign extension of 0xf0... range is incorrect!
-	** extrd,s below needs to "f-extend" to "0xf0f0f0...".
-	** 4 instances of this to fix.
-	*/
-
+	extrd,s         pte,35,4,t0
 	depdi		0,63,12,pte	/* clear lower 12 bits */
+        addi,=3D          1,t0,0=20
+        extrd,u,*tr     pte,56,25,pte=20
 	extrd,s		pte,56,25,pte	/* bit 31:8 >> 8  */=20
 	idtlbt          pte,prot
=20
@@ -1424,9 +1422,12 @@ nadtlb_miss_20:
=20
 	/* Get rid of prot bits and convert to page addr for idtlbt */
=20
-	depdi		0,63,12,pte	/* clear lower 12 bits */
-	extrd,s		pte,56,25,pte	/* bit 31:8 >> 8  */=20
-	idtlbt          pte,prot
+        extrd,s         pte,35,4,t0
+        depdi           0,63,12,pte     /* clear lower 12 bits */
+        addi,=3D          1,t0,0
+        extrd,u,*tr     pte,56,25,pte
+        extrd,s         pte,56,25,pte   /* bit 31:8 >> 8  */
+        idtlbt          pte,prot
=20
 	rfir
 	nop
@@ -1674,8 +1675,11 @@ itlb_miss_common_20:
=20
 	/* Get rid of prot bits and convert to page addr for iitlbt */
=20
-	depdi		0,63,12,pte	/* clear lower 12 bits */
-	extrd,s		pte,56,25,pte	/* bit 31:8 >> 8  */=20
+        extrd,s         pte,35,4,t0=20
+        depdi           0,63,12,pte     /* clear lower 12 bits */
+        addi,=3D          1,t0,0
+        extrd,u,*tr     pte,56,25,pte=20
+        extrd,s         pte,56,25,pte   /* bit 31:8 >> 8  */
 	iitlbt          pte,prot
=20
 	rfir
@@ -1889,11 +1893,13 @@ dbit_nolock_20:
 	extrd,u,*=3D 	pte,_PAGE_GATEWAY_BIT+32,1,r0
 	depdi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
=20
-	/* Get rid of prot bits and convert to page addr for idtlbt */
+        extrd,s         pte,35,4,t0=20
+        depdi           0,63,12,pte     /* clear lower 12 bits */
+        addi,=3D          1,t0,0
+        extrd,u,*tr     pte,56,25,pte=20
+        extrd,s         pte,56,25,pte   /* bit 31:8 >> 8  */
+        idtlbt          pte,prot
=20
-	depdi		0,63,12,pte	/* clear lower 12 bits */
-	extrd,s		pte,56,25,pte	/* bit 31:8 >> 8  */=20
-	idtlbt          pte,prot
 #ifdef CONFIG_SMP
 	CMPIB=3D,n        0,spc,dbit_nounlock_20
 	ldi             1,t1

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From: David Dougall <davidd@et.byu.edu>
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Subject: [parisc-linux] Mozilla, etc.
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I am quite please with my B132 running 0.9.3.  I am having a slight
difficulty.  How do I get a web browser?  I was going to try to get
mozilla compiled, but it was complaining that I don't have "zip"
installed.  First of all, where is "zip"?  What package is it in?  I tried
apt-get install zip and it returned an error.  Has anyone else gotten
mozilla to work on parisc-linux?  Is there another browser that would be
better?  If so, please advise(or a binary download wouldn't hurt).
Thanks
--David Dougall


PS: is there any hope of a jre on parisc-linux?




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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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> 
> The p90 system is an old stock install of redhat 6.0 with very little
> done to the kernel.. it was recompiled with certain drivers built into
> the kernel but that's about it.
> 
> [pete@piglet brad]$ g++ --version
> egcs-2.91.66
> 
> The program is fairly simple in what it does.  
>

This is the crux of the problem. IA32 glibc and kernel are sprinkled
with copious amounts of hand tuned and optimized assembly. We are
nowhere near that level yet :)

What is it that your program does?

Like the beowulf.org people say:
	"Your application is always the best benchmark." 

Cheers,
Carlos.



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David,

since rcently you can get the mozilla package with a simple "apt-get install
mozilla", so there is no need to go through the excercise of compiling it
yourself (and it takes several hours on older HW - been there). However it
still doesn't run, as far as I know because the threads are still far from
perfect in palinux. There's a couple of other applications suffering from
this too.

For now I use "dillo" on the parisc machines.

    Christian


David Dougall wrote:

> I am quite please with my B132 running 0.9.3.  I am having a slight
> difficulty.  How do I get a web browser?  I was going to try to get
> mozilla compiled, but it was complaining that I don't have "zip"
> installed.  First of all, where is "zip"?  What package is it in?  I tried
> apt-get install zip and it returned an error.  Has anyone else gotten
> mozilla to work on parisc-linux?  Is there another browser that would be
> better?  If so, please advise(or a binary download wouldn't hurt).
> Thanks
> --David Dougall
>
> PS: is there any hope of a jre on parisc-linux?
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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* Carlos O'Donell Jr. (carlos@baldric.uwo.ca) wrote:


> > The p90 system is an old stock install of redhat 6.0 with very little
> > done to the kernel.. it was recompiled with certain drivers built into
> > the kernel but that's about it.
> > 
> > [pete@piglet brad]$ g++ --version
> > egcs-2.91.66
> > 
> > The program is fairly simple in what it does.  
> >
> 
> This is the crux of the problem. IA32 glibc and kernel are sprinkled
> with copious amounts of hand tuned and optimized assembly. We are
> nowhere near that level yet :)
 
I thought that the i386 may hvae some performance tweaks in it, since
this is by far the most used platform for development.


> What is it that your program does?

Nothing special, it's just an exercise in programming.  It searches
for perfect numbers and then prints out the prime number in the list
of factors.

It's not very big, so if you want to take a look, I'll email it to
you..  :)


Regards,

Pete.

-- 
				Due to a lack of imagination, 
				this signature will remain 
				under construction indefinately.



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Andrew Shugg wrote:
> Grant, are you quite sure of that location?  I can't see a /patches/a500
> directory on the server, and didn't try dumping an ls -alR to look for
> it as it's not felt to be polite practise on FTP servers these days.

sorry - that should be kernels/a500/
or kernels/lxr8000/firewall is a newer version of the same thing.



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Hi,

>First of all, where is "zip"?  What package is it in?

try apt-get install unzip
then you can unzip *.zip files but the better way is to apt-get install=20
mozilla because it's much faster.
But it doesn't work at the moment because it breaks with an segmentation=
 fault.

>Is there another browser that would be
>better?  If so, please advise(or a binary download wouldn't hurt).

Dillo is nice but not perfect at the moment.
And if you have enough time or a powerful machine the you can use konqueror.

>PS: is there any hope of a jre on parisc-linux?

I hope so. I'm waiting for a jvm.

cya,
Tilo

|[ Tilo Jandt, K=F6rnerstra=DFe 8, D-09306 Rochlitz         ]|
|[ mailto:tilo@jandt-online.net ]  [ ICQ: 73832493              ]|
|[ Phone: +49 179 5333 255   ]  [ Fax: +49 3737 771478  ]|





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On Wed, Mar 27, 2002 at 09:44:59PM -0800, Christian Suder wrote:
> since rcently you can get the mozilla package with a simple "apt-get install
> mozilla", so there is no need to go through the excercise of compiling it
> yourself (and it takes several hours on older HW - been there). However it
> still doesn't run, as far as I know because the threads are still far from

to get it running, you need to recompile it with -O optimizing level. The
default -O2 miscompiles mozilla. Ok, this will give you a more sane mozilla,
but it's still not accepting some of the mouse/keyboard events. No idea
why. But there is galeon, which uses mozillas rendering engine, which (also
compiled with -O) gives me a working web browser.

Thomas.




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Quoth Grant Grundler:
> sorry - that should be kernels/a500/
> or kernels/lxr8000/firewall is a newer version of the same thing.

ncftp /kernels > dir */firewall
-r--r--r--   1 grundler ftpadmin       4912 Jan  2 05:57 a500/firewall
-rwxr-xr-x   1 grundler ftpadmin       5113 Mar 10 07:44 c3000/firewall


I assume you mean c3000/firewall ?

Thanks, always interested to see how other people approach firewalling.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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Quoth David Dougall:
> PS: is there any hope of a jre on parisc-linux?

I would say definitely, after this recent press release from the Apache
Software Foundation:

  http://www.apache.org/foundation/news.html

(linking to)

  http://www1.internetwire.com/iwire/release_html_b1?release_id=39838

"ASF reaches agreement with Sun Microsystems to allow open source Java
implementations."

What I _think_ this means (after reading through the full article) is
that we're going to see fully open, 100%-approved Java implementations
running natively in Linux and other alternative operating systems in the
near future.  I don't know what the current issues (if any) are with
building the jdk1.1 or jdk1.2 packages under linux-hppa, but I would
hope that following this announcement HP will (somehow) be able to
assist in getting a production-ready JRE into linux-hppa.

(Caveat: I could have this all wrong of course.)

Once HPUX binary compatibility is working properly the HPUX JRE could
probably be used as well, but if there's a comparable native solution I
don't know if many people will go to that effort.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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>to get it running, you need to recompile it with -O optimizing level.

how do you recompile it?

>But there is galeon, which uses mozillas rendering engine, which (also
>compiled with -O) gives me a working web browser.

since the upgrade to mozilla 0.9.9 i can't use galeon any more.

cya,
Tilo

|[ Tilo Jandt, K=F6rnerstra=DFe 8, D-09306 Rochlitz         ]|
|[ mailto:tilo@jandt-online.net ]  [ ICQ: 73832493              ]|
|[ Phone: +49 179 5333 255   ]  [ Fax: +49 3737 771478  ]|





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Matthew Wilcox wrote:
> How can a disc have HPA and SPA?  Are you trying to find the HPA/SPA of
> the disc's controller?

I thought the boot and dump devices have a faked HPA for IODC.
The code in palo/ipl/pdc_misc.c looks like it:

int
pdc_iodc_bootin(unsigned devaddr, char *memaddr, unsigned size)
{
    int r;

        r = firmware_call(PAGE0->mem_boot.iodc_io,
			PAGE0->mem_boot.hpa, ENTRY_IO_BOOTIN,
			PAGE0->mem_boot.spa, PAGE0->mem_boot.dp.layers,
			pdc_result, devaddr, memaddr, size, size);
....




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Andrew Shugg wrote:
> I assume you mean c3000/firewall ?

No. I really meant lxr8000:
grundler <503>ls -l kernels/*/firewall
-rwxr-xr-x    1 grundler users        4912 Jan  1 21:39 kernels/a500/firewall*
-rwxr-xr-x    1 grundler users        4950 Mar 27 23:01 kernels/lxr8000/firewall*
-rwxr-xr-x    1 grundler users        5096 Jan 12 22:03 kernels/ob500/firewall*

I basically run the same firewall on all three machines with localized tweaks.


> Thanks, always interested to see how other people approach firewalling.

agreed - but this isn't just my own personal creatation. I've gotten
input from other folks who actaully know what they are doing.
(thanks to neuro, rbrad, lamont, et al).

grant



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Subject: [parisc-linux] [carlos@baldric.uwo.ca: Re: Any hppa gurus?]
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Just a heads-up to see if anyone is having fp issues in 
any of their adventures :)

I hope I got all the fp passing stuff right since I'm
no 'hppa guru' ;)

c.

----- Forwarded message from "Carlos O'Donell Jr." <carlos@baldric.uwo.ca> -----

Date: Thu, 28 Mar 2002 12:24:45 -0500
From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
To: Will Newton <will@misconception.org.uk>, debian-hppa@lists.debian.org
Cc: willy@debian.org, dave@hiauly1.hia.nrc.ca
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> I am still seeing a very similar problem with latest unstable gcc.
> 
> The first four floats (or first two doubles) passed to an indirect function 
> are always 0.0.
> 
> > I could help out with any questions you might have
> > (or coerce the information out of others I know ;)
> 
> Any help would be much appreciated. I have attached the code (it is quite 
> small). It's aim is to take an array of arguments and pass them to a native 
> function. Unfortunately the function does not work for doubles and there also 
> seems to be a crash for some reason (stack corruption?) after several calls.

avcall-hppa.c:

     64   {
     65     int i;
     66     for (i = -arglen; i < -4; i++)      /* push function args onto stack */
     67       argframe[i] = l->args[__AV_ALIST_WORDS+i];
     68   }
     69 
     70   if (l->rtype == __AVstruct)           /* push struct return address */
     71     sret = l->raddr;
     72 
     73                                 /* call function, pass 4 args in registers */
     74   i = (*l->func)(l->args[__AV_ALIST_WORDS-1], l->args[__AV_ALIST_WORDS-2],
     75                  l->args[__AV_ALIST_WORDS-3], l->args[__AV_ALIST_WORDS-4]);
     76 

64-68 - Great, pass it on the stack
75-75 - Need to check argument type, if float/double it needs to passed
        via fr4-fr7 else gr23-gr26.

It's been decided to go with the ~"64-bit HPUX ABI" and stop passing floating 
point values in general registers (since this requires proper CALL info 
and relocating stubs from the linker).

Which means you can no longer place float/double arguments into general
register.

What does the av_alist structure look like? If it has a 'type' per argument,
it it shouldn't be too hard to write the code.

Current way it's done:
No Arguments in general registers:

1 Double  - fr7 (fr7 hi, fr6 low)
2 Doubles - fr7,fr5
3 Doubles - fr7,fr5,Stack...

1 Float   - fr7
2 Floats  - fr7,fr6
3 Floats  - fr7,fr6,fr5
4 Floats  - fr7,fr6,fr5,fr4
5 Floats  - fr7,fr6,fr5,fr4,Stack...

And then some old stuff due to 'thinking its doing relocation':

2 Doubles with argument in the first 1-2 general 
(gr25,26) register:
	- fr7(fr7 hi, fr6 low),Stack...

2 Doubles with arugment in the first 3-4 general 
(gr23,24,25,26) registers:
	- Stack...

And so on... most of this is due to thinking:
- Is there enough space for the argument in the general registers?
	- No -> Stack
	- Yes -> Pass as fp argument in fr's.

Cheers,
Carlos.

----- End forwarded message -----



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Andrew Shugg wrote:
> ....but I would hope that following this announcement HP will (somehow)
> be able to assist in getting a production-ready JRE into linux-hppa.

Just to set your expectation, inside HP I don't see any commercial
interest in parisc-linux at this time. I can make compute resources
(== faster machines) available for building/testing binaries. But
that's about the level of assistance I see happening from various
parts of HP.

> Once HPUX binary compatibility is working properly the HPUX JRE could
> probably be used as well, but if there's a comparable native solution I
> don't know if many people will go to that effort.

I was hoping (there's that word again) someone would do that.
All parisc machines were sold with a HPUX license. As the owner
of such a machine, you have the right to run the binaries
shipped with the machine. And it comes with lots of useful
binaries (jvm, compiler, X11 stuff, etc).

hth,
grant



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Hi Paul,

I just discover your question melting between other mails.

Well, I started to experiment LVM solutions before that packages were available
for hppa so I build it from sources.

For my experience, I run lvm-1.0.3 without any problem during a month and
building severall kernels on it. Try it also.

Let me know if it solves your problem,

Joel

On the other hand I also work with evms team to make evms works on hppa. It
works now (since release 0.9.2 still beta but already operational for the main
part) with some tips applied du to hppa gcc bug.

-------------------------------------------------
This mail sent through Tiscali Webmail (http://webmail.tiscali.be)



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On Tue, Mar 26, 2002 at 11:22:01PM -0800, Jeremy Drake wrote:
> On Wed, 27 Mar 2002, Chuck Slivkoff wrote:
> 
> > That would be a Visualize-FXe. It is completely different than any of
> > the supported devices.
> 
> Does this mean I don't get any X?  Maybe I could be of some help testing

correct. None of the FX card is supported at the moment, because there is
still no documenatation available. I tried to treat the framebuffer as
a 24bit non packed framebuffer, but that gives me some really odd looking
graphic. Looks like PDC sets it up to some special pixel writing mode,
because it only deals with 3 planes.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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On Thu, Mar 28, 2002 at 05:13:56PM +0100, Tilo Jandt wrote:
> 
> 
> >to get it running, you need to recompile it with -O optimizing level.
> 
> how do you recompile it?

apt-get source mozilla
cd mozilla-0.9.9
vi debian/rules
dpkg-buildpackage -b
/* wait some hours */

> >But there is galeon, which uses mozillas rendering engine, which (also
> >compiled with -O) gives me a working web browser.
> 
> since the upgrade to mozilla 0.9.9 i can't use galeon any more.

I've placed the .debs, which I'm using to:

http://gsyprf11.external.hp.com/~tsbogend

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]



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Quoth Grant Grundler:
> Andrew Shugg wrote:
> > I assume you mean c3000/firewall ?
> 
> No. I really meant lxr8000:
> grundler <503>ls -l kernels/*/firewall
> -rwxr-xr-x    1 grundler users        4912 Jan  1 21:39 kernels/a500/firewall*
> -rwxr-xr-x    1 grundler users        4950 Mar 27 23:01 kernels/lxr8000/firewall*
> -rwxr-xr-x    1 grundler users        5096 Jan 12 22:03 kernels/ob500/firewall*

Okay.  I think we're not looking on the same systems, somehow.  =)

[guinness:~]$ !nc
ncftp ftp.parisc-linux.org
NcFTP 3.0.0 beta 14 (June 25, 1998) by Mike Gleason.
Connecting to 192.25.206.7...
ProFTPD 1.2.0pre10 Server (Debian) [dsl2.external.hp.com]
Welcome to the PA RISC/Linux project archive!

You appear to be anonymous@ns1.au.network4.net
The local time is: Thu Mar 28 18:03:06 2002

Please report any problems to ftpmaster@ftp.parisc-linux.org
Anonymous access granted, restrictions apply.
Logged in to ftp.parisc-linux.org.
ncftp / > dir kernels/*/firewall
-r--r--r--   1 grundler ftpadmin       4912 Jan  2 05:57 kernels/a500/firewall
-rwxr-xr-x   1 grundler ftpadmin       5113 Mar 10 07:44 kernels/c3000/firewall
ncftp / >

There's only the one ftp server, isn't there?

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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Xref: news.gmane.org gmane.linux.ports.parisc:14467

As they say, benchmarks can be used to show most anything you want... so
these may be of limited usefulness, but anyway...

Here are some lmbench results on a c3000 machine. Only the c3k-new
numbers below are "new". The other ones are included for comparison,
based on Paul Bame's posting in Jan 2001:
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-January/010801.html

I was mostly interested in seeing how things have changed in the last
year or so. Of course, Paul and I ran benchmarks on different C3000
machines, so take the numbers with a grain of salt...

That said, the numbers for c3k-new below are for a 400MHz C3000 running
2.4.18-pa6 (32-bit kernel). It has 2G of RAM and a 10krpm Seagate ST118202LC 
drive connected to a sym53c896 controller. The system is connected to a
lightly loaded local network.

As I mentioned above, the c3k-old and c3k-hpux numbers are from Paul's
earlier posting. c3k-old is the c3k-j19-3 numbers.

Just for kicks, there are also numbers for a ia64 HP i2000 Itanium
workstation (labeled "ia64"). The i2000 is a SMP system with 2x800MHz
CPUs, 2G RAM, and a 10krpm Quantum drive connected to a qla1280
controller. lmbench is not a SMP benchmark though, so the numbers are
really for a single 800Mhz processor....

In general the parisc-linux numbers seem to have remained constant. I'm not 
sure what happened with the File/VM numbers though. The biggest
improvement I think is that many more things now work out of the box. We
still seem to be having some problems with the signals tests, but
otherwise the test runs much better than it used to.

Key:
    c3k-old	C3000 parisc-linux 1/19/2001 kernel
    c3k-new     C3000 parisc-linux 2.4.18-pa6 kernel
    c3k-hpux	C3000 HPUX 10.20 (*** an active in-use system ***)
    ia64        i2000 ia64-linux 2.4.17 kernel


                 L M B E N C H  2 . 0   S U M M A R Y
                 ------------------------------------
		 (Alpha software, do not distribute)

Basic system parameters
----------------------------------------------------
Host                 OS Description              Mhz
                                                    
--------- ------------- ----------------------- ----
c3k-old   Linux 2.4.0-t        parisc-linux-gnu  400
c3k-hpux  HP-UX B.10.20    hppa2.0-hp-hpux10.20  400
c3k-hpux  HP-UX B.10.20    hppa2.0-hp-hpux10.20  400
c3k-hpux  HP-UX B.10.20    hppa2.0-hp-hpux10.20  400
c3k-hpux  HP-UX B.10.20    hppa2.0-hp-hpux10.20  400
c3k-new   Linux 2.4.18-       hppa2.0-linux-gnu  400
ia64       Linux 2.4.17                  ia64    800


Processor, Processes - times in microseconds - smaller is better
----------------------------------------------------------------
Host                 OS  Mhz null null      open selct sig  sig  fork exec sh  
                             call  I/O stat clos TCP   inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ----
c3k-old   Linux 2.4.0-t  400 0.76 1.32 8.12 8.88    61 2.26   14 1674  11K  53K
c3k-hpux  HP-UX B.10.20  400 0.34        21   25    55 3.42   12  699 1873 9950
c3k-hpux  HP-UX B.10.20  400 0.33        21   25    54 3.42   12  699 1876 9946
c3k-hpux  HP-UX B.10.20  400 0.33        21   25    55 3.42   12  698 1866 6678
c3k-hpux  HP-UX B.10.20  400 0.33        21   25    55 3.42   12  700 1871 6715
c3k-new   Linux 2.4.18-  400 0.70 1.26 6.78 7.46  62.0 2.18 14.7 3030 9459 27.K
ia64      Linux 2.4.17   800 0.56 0.81 2.89 4.69  38.3 1.07 3.52 381. 1559 7058


Context switching - times in microseconds - smaller is better
-------------------------------------------------------------
Host                 OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
                        ctxsw  ctxsw  ctxsw ctxsw  ctxsw   ctxsw   ctxsw
--------- ------------- ----- ------ ------ ------ ------ ------- -------
c3k-old   Linux 2.4.0-t 1.360 1.3000 1.1500     22     82      27      95
c3k-hpux  HP-UX B.10.20 3.760 3.6500    273    119    288      92     184
c3k-hpux  HP-UX B.10.20 3.760 3.6800 3.7500 3.7000     32 6.31000      60
c3k-hpux  HP-UX B.10.20 3.760 3.6300 3.5100 3.5600     13 6.84000      64
c3k-hpux  HP-UX B.10.20 4.320 3.7700 3.6300 3.7000     10 5.92000      51
c3k-new   Linux 2.4.18- 1.260 1.2100 1.0400   20.2   84.6    27.4    97.3
ia64       Linux 2.4.17 6.350 9.5200   35.7   18.4   42.7    19.4    69.7


*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host                 OS 2p/0K  Pipe AF     UDP  RPC/   TCP  RPC/ TCP
                        ctxsw       UNIX         UDP         TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
c3k-old   Linux 2.4.0-t 1.360 9.501   19    28          36       8.2M
c3k-hpux  HP-UX B.10.20 3.760    20   22    42    93    39   103 2.0M
c3k-hpux  HP-UX B.10.20 3.760    19   22    41    93    39   101 2.0M
c3k-hpux  HP-UX B.10.20 3.760    19   21    41    93    39   101 2.0M
c3k-hpux  HP-UX B.10.20 4.320    19   21    41    93    39   102 2.0M
c3k-new   Linux 2.4.18- 1.260  12.7 19.2  29.4  57.4  35.6  80.0 143.
ia64       Linux 2.4.17 6.350  17.1 32.0  44.1  73.2  60.0 104.6 111.


File & VM system latencies in microseconds - smaller is better
--------------------------------------------------------------
Host                 OS   0K File      10K File      Mmap    Prot    Page	
                        Create Delete Create Delete  Latency Fault   Fault 
--------- ------------- ------ ------ ------ ------  ------- -----   ----- 
c3k-old   Linux 2.4.0-t 9.0001 1.0000     28 3.0000     1423              
c3k-hpux  HP-UX B.10.20   1123    598   1694    598 191.8620 6.480    5504
c3k-hpux  HP-UX B.10.20   1123    598   1754    598 181.1960 6.880    5738
c3k-hpux  HP-UX B.10.20   1136    598   1724    598 184.6730 4.232    5418
c3k-hpux  HP-UX B.10.20   1123    598   1724    598 185.1890 4.300    5475
c3k-new   Linux 2.4.18-  102.5   42.5  392.2   81.8    15.2K 695.2    11.0
ia64       Linux 2.4.17   89.8   26.4  195.2   57.7   5460.0 1.298    4.00000


*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------
Host                OS  Pipe AF    TCP  File   Mmap  Bcopy  Bcopy  Mem   Mem
                             UNIX      reread reread (libc) (hand) read write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
c3k-old   Linux 2.4.0-t   48   49   42     76    513    193    200  504   430
c3k-hpux  HP-UX B.10.20  406  528  298    490    391    164    163  503   452
c3k-hpux  HP-UX B.10.20  402  537  315    506    509    207    208  504   467
c3k-hpux  HP-UX B.10.20  407  537  312    508    509    207    206  494   467
c3k-hpux  HP-UX B.10.20  406  538  311    505    509    205    209  499   467
c3k-new   Linux 2.4.18- 47.8 48.9 82.3   74.0  472.9  205.2  207.5 472. 474.7
ia64       Linux 2.4.17 600. 464. 315.  267.9  160.7  428.4  106.8 161. 222.2


Memory latencies in nanoseconds - smaller is better
    (WARNING - may not be correct, check graphs)
---------------------------------------------------
Host                 OS   Mhz  L1 $   L2 $    Main mem    Guesses
--------- -------------  ---- ----- ------    --------    -------
c3k-old   Linux 2.4.0-t   400 7.503 7.5030    184    No L1 cache?
c3k-new   Linux 2.4.18-   400 7.502 7.5020  184.8    No L1 cache?
ia64       Linux 2.4.17   800 3.786   27.8  244.1

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Andrew Shugg wrote:
> Okay.  I think we're not looking on the same systems, somehow.  =)

We aren't. I didn't say gsyprf10.external.hp.com originally?

I seeded ftp.parisc-linux.org/kernels from gsyprf10.
I'll remove the parisc content from gsyprf10 ftp site so there is
no overlap and hopefully no confusion in the future.
Go by date stamps for now until it's cleaned up.

> There's only the one ftp server, isn't there?

For parisc-linux, yes.
But I maintain a bunch of other x86 boxes...

hth,
grant



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Thanks Thomas,

that helped quite a bit. I used an older mozilla tree which I had and 
compiled it with -O and it worked with skipstone. I'm now using your 
binaries (saved a couple of hours...;-) with a recent skipstone and it 
works pretty well on a local X display.

It has some issues running remotely (window not always redrawn, hangs 
sometimes). Galeon doesn't want to run at all on a remote display, a couple 
of tasks are spawning but nothing on the screen. This seems to be a generic 
issue with appearantly mostly GTK+ applications. Pan and sylpheed are two 
other apps that don't want to run remotely although they do work on a local 
display.

         Christian


At 11:59 PM 3/28/2002 +0100, Thomas Bogendoerfer wrote:
>On Thu, Mar 28, 2002 at 05:13:56PM +0100, Tilo Jandt wrote:
> >
> >
> > >to get it running, you need to recompile it with -O optimizing level.
> >
> > how do you recompile it?
>
>apt-get source mozilla
>cd mozilla-0.9.9
>vi debian/rules
>dpkg-buildpackage -b
>/* wait some hours */
>
> > >But there is galeon, which uses mozillas rendering engine, which (also
> > >compiled with -O) gives me a working web browser.
> >
> > since the upgrade to mozilla 0.9.9 i can't use galeon any more.
>
>I've placed the .debs, which I'm using to:
>
>http://gsyprf11.external.hp.com/~tsbogend
>
>Thomas.
>
>--
>Crap can work. Given enough thrust pigs will fly, but it's not necessary a
>good idea.                                 [ Alexander Viro on linux-kernel ]




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            <p align="left"><font face="Times New Roman" size="3"><img 
align="left" border="0" 
src="http://www.thenetworkadministrator.com/monkeypics/professional_mw.gif" 
width="80" height="120">Where
            is the line between having too many certifications and just 
enough?
            Does your resume give the impression that you have more 
experience
            in test taking than actual work experience? If this sounds 
like you
            then here's a quick test to see how you rank. Relax
            Poindexter...there's no test here. I was just kidding.&nbsp; 
<b>By
            Doug Chick</b><br>
            <a href="http://www.thenetworkadministrator.com"><font 
color="#0000ff"><img border="0" 
src="http://www.thenetworkadministrator.com/fullstory.jpg" width="70" 
height="20"></font></a></font></p>
            <font color="#0000FF">
    <hr noshade size="1" align="left">
            </font>
            <p><span class="regtextthin1"><font color="#0000FF" size="4">
      <font color="#0000ff" face="Times New Roman" size="4">Are you 
choosing
      software for your company by what will look best on your 
resume?&nbsp;<br>
      &nbsp;<img align="left" border="0" height="84" 
src="http://209.26.235.107/monkeypics/boy_coloring_sm_wht.gif" 
width="84"><br>
      </font><span style="FONT-SIZE: 12pt"><font face="Times New Roman" 
size="3">&nbsp;</font></span></font><span style="FONT-SIZE: 12pt"><font 
face="Times New Roman" size="3" color="#000000">First
      thing I do when looking for software for my company is research all
      available software similar to our needs. Then I do a detailed 
comparative
      analysis, followed by a call to a list of satisfied customers 
supplied by
      the software company. After all, isnt that what all Network
      Administrators do?&nbsp;Well, maybe not all...<br>
            <b>By Doug Chick</b><br>
            </font></span></span><font color="#0000FF"><a 
href="http://www.thenetworkadministrator.com"><img border="0" 
src="http://www.thenetworkadministrator.com/fullstory.jpg" width="70" 
height="20"></a>
            </p>
    <hr noshade size="1" align="left">
    <p align="left"><span class="regtextthin1"><font color="#0000FF" 
size="4">
      Why
wouldnt Microsoft package its own computer like 
Apple?</font></span><span style="font-size:10.0pt;font-family:Arial" 
class="regtextthin1"><br>
      </span><img border="0" src="http://209.26.235.107/pics/mbox.gif" 
align="left" width="122" height="113"></font>I Read an article by <span 
style="font-size:10.0pt;mso-ascii-font-family:&quot;Times New 
Roman&quot;;mso-hansi-font-family:
&quot;Times New Roman&quot;;mso-bidi-font-family:&quot;Times New 
Roman&quot;" class="regtextthin1">Phillip
Smith</span><span style="font-size:10.0pt;font-family:Arial" 
class="regtextthin1">
 that raised an interesting question; Why wouldnt Microsoft package its 
own
computer like Apple or Sun, and stop selling its software to computer 
makers
altogether? Microsoft could agree that they created a market that made 
them a
monopoly and to add balance to the industry they would stop selling their 
product
to computer makers and only use it in their own systems.&nbsp; 
    <font color="#0000FF">
    <br>
 </font>
 </span>
    <font color="#0000FF">
    <a href="http://www.thenetworkadministrator.com"><img border="0" 
src="http://www.thenetworkadministrator.com/fullstory.jpg" width="70" 
height="20"></a></font>
    <hr noshade size="1" align="left">
            <p align="left"><font color="#0000FF" size="4"><b>Has 
Monitoring your Network
      Given you a God Complex?&nbsp;<br>
      </b></font><img border="0" src="http://209.26.235.107/god.jpg" 
align="left" width="86" height="108">From your desk you
      can see who and when someone logs in, who and what e-mail they send 
and
      what websites that they frequently attend. Knowing this information 
can
      sometimes place you in difficult situations. You often ask yourself 
if you
      should interfere to help someone that you like, or don't like. See 
an
      e-mail that you know is damaging and wonder if you should stop or 
remove
      it completely. It's a very difficult position to be in and almost no 
one,
      short of other computer people know about it. So what do you do? I 
am now
      of the philosophy that, &quot;Unless someone is in danger of being
      hurt--Stay out of it!&quot;&nbsp;&nbsp;<br>
      <b>By Doug Chick</b><br>
 
    <font color="#0000FF">
    <a href="http://www.thenetworkadministrator.com"><img border="0" 
src="http://www.thenetworkadministrator.com/fullstory.jpg" width="70" 
height="20"></a></font>
 
            <hr noshade size="1" align="left">
            <p align="left"><font color="#0000FF"><font face="Times New 
Roman" color="#0000FF" size="4">How
    many computer catalogs do companies think you need?&nbsp;</font><span 
style="FONT-SIZE: 12pt"><font face="Times New Roman" size="3"><br>
    <img border="0" 
src="http://209.26.235.107/pics/jerboa_stomp_sm_wht.gif" align="left" 
width="65" height="60"></font></span></font><span style="FONT-SIZE: 
12pt"><font face="Times New Roman" size="3" color="#000000">On
    an average, I receive 5 computer accessories catalogs by mail, 
everyday.
    Thats 25 a week, 100 a month and 1200 an year. Now stacking 10 
magazines
    on top of each other will give you an inch, and 1200 magazines will 
produce
    a stack 10 feet high. Lets review: 5 magazines X 5 days<span 
style="mso-spacerun: yes">&nbsp;
    </span>= 25 X 4 weeks = 100 X 12 months = 1200 magazines = a stack 10 
feet
    high.<br>
    </font></span>
    <font color="#0000FF">
    <a href="http://www.thenetworkadministrator.com"><img border="0" 
src="http://www.thenetworkadministrator.com/fullstory.jpg" width="70" 
height="20"></a></font>
 </p>
            <hr noshade size="1" align="left">
            <p align="left"><font size="4">Who wants to be a Network
    Administrator?<br>
    </font>
    <span style="font-size:12.0pt;font-family:&quot;Times New 
Roman&quot;;mso-fareast-font-family:
&quot;Times New 
Roman&quot;;mso-ansi-language:EN-US;mso-fareast-language:EN-US;
mso-bidi-language:AR-SA"><img border="0" 
src="http://209.26.235.107/pics/analyzing_t_v_head_mw.gif" align="left" 
width="66" height="99">Why
    are there so many people out there that are studying so hard to take 
your
    job away from you? Money. I was sitting in the movie theater with my 
wife
    last night and one of the ads on the screen before the movie started 
read:
    Be a Network Administrator and earn 87K a year. Well, two thumbs up 
again
    for those lying salary surveys. I dont really think that those salary
    surveys are lying as much as I believe that theres one network
    administrator out there that makes 47 millions dollars a year and is
    totally warping the salary curve.<br>
    </span>
    <font color="#0000FF">
    <a href="http://www.thenetworkadministrator.com"><img border="0" 
src="http://www.thenetworkadministrator.com/fullstory.jpg" width="70" 
height="20"></a></font>
 </p>
            <hr noshade size="1" align="left">
            <p align="left"><font color="#0000FF" size="4">Is your career 
dependant on
      the operating system that you support?<br>
      <img border="0" src="http://209.26.235.107/pics/plunger_mw.gif" 
align="left" width="120" height="104"></font><br>
<!--page-->If suddenly one day, the president of your company announced 
that he
      just struck a deal to change all the servers operating systems in 
your
      company to Serversoft (trademark pending) what would you do 
exactly?
      Furthermore, what if your company started hiring people that were
      Serversoft certified, (trademark pending) that had no real life 
computer
      experience and were paid more than you? How likely is that to 
happen? Ask
      a Novell Administrator.<span class="regtext"><font 
color="#0000FF"><br>
            </font></span> 
    <font color="#0000FF">
    <a href="http://www.thenetworkadministrator.com"><img border="0" 
src="http://www.thenetworkadministrator.com/fullstory.jpg" width="70" 
height="20"></a></font> </p>
            <p align="center"><a 
href="mailto:submit@thenetworkadministrator.com">Submit
            an Article<br>
            <br>
            <font size="4"><a 
href="mailto:removeme@thenetworkadministrator.com">Please
            remove me from your newsletter.</font></a> </p>
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                  <p align="center"><font color="#FFFFFF" 
size="2">*</font></td>
              </tr>
              <tr>
                <td width="100%" bordercolor="#FFFFFF" height="15">
                  <p align="center"><font size="2" color="#FFFFFF">Monkey 
Sling</font></td>
              </tr>
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                <td width="100%" bordercolor="#FFFFFF" height="30">
                  <p align="center"><font size="2" color="#FFFFFF">The 
Network
                  Admins Survival Guide</font></td>
              </tr>
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                <td width="100%" bordercolor="#FFFFFF" height="30">
                  <p align="center"><font size="2" color="#FFFFFF">The 
Language
                  of the End-User</font></td>
              </tr>
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                <td width="100%" bordercolor="#FFFFFF" height="15">
                  <p align="center"><font size="2" color="#FFFFFF">Hacker 
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                <td width="100%" bordercolor="#FFFFFF" height="15">
                  <p align="center"><small><font 
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                <td width="100%" bordercolor="#FFFFFF" height="15">
                  <p align="center"><small><font color="#FFFFFF">Who Let 
the
                  Bugs Out</font></small></td>
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                <td width="100%" bordercolor="#FFFFFF" height="15">
                  <p align="center"><font color="#FFFFFF" 
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align="center" bgcolor="#FFFFFF">&nbsp;</td>
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align="center" bgcolor="#FFFFFF">&nbsp;</td>
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align="center" bgcolor="#FFFFFF">&nbsp;</td>
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align="center" bgcolor="#FFFFFF">&nbsp;</td>
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                <td width="100%" bordercolor="#FFFFFF" height="8" 
align="center" bgcolor="#FFFFFF">&nbsp;
                  <p>&nbsp;</p>
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                <td width="100%" bordercolor="#FFFFFF" height="7" 
align="center" bgcolor="#FFFFFF">&nbsp;</td>
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align="center" bgcolor="#FFFFFF">&nbsp;</td>
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                <td width="100%" bordercolor="#FFFFFF" height="15" 
align="center" bgcolor="#FFFFFF"><font color="#FFFFFF" 
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align="center" bgcolor="#FFFFFF"><font color="#FFFFFF" 
size="2">*</font></td>
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align="center" bgcolor="#FFFFFF"><font color="#FFFFFF" 
size="2">*</font></td>
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align="center" bgcolor="#FFFFFF"><font color="#FFFFFF" 
size="2">*</font></td>
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align="center" bgcolor="#FFFFFF"><font color="#FFFFFF" 
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align="center" bgcolor="#FFFFFF"><font color="#FFFFFF" 
size="2">*</font></td>
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align="center" bgcolor="#FFFFFF"><font color="#FFFFFF" 
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            </table>
            <table border="0" width="100%" cellspacing="0" cellpadding="0" 
height="100%">
              <tr>
                <td width="100%" height="346"></td>
              </tr>
            </table>
            <p>&nbsp;</td>
        </tr>
      </table>
      <table border="0" width="100%" cellspacing="0" cellpadding="0">
        <tr>
          <td width="100%">
            <p align="left"><strong>|</strong><font color="#0000FF"> 
Copyright
            2001&nbsp; TheNetworkAdministrator.com &amp; DougChick.com 
|</font></td>
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From - Thu Nov 08 21:22:17 2018
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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Re: Fwd: Re: Any hppa gurus?
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Xref: news.gmane.org gmane.linux.ports.parisc:14471

> 
> So, are the first four floats/doubles in an arg list always passed in 
> registers?
> 
> How about func(int, float, int, double, int, float)?
> 
>

A float fits into a single fr register.
A double fits into two fr registers (fr7 (uses fr6),fr5 (uses fr4)) 


	int    gr26 - fr7    ===
	===    gr25 - fr6    ===
	int    gr24 - fr5    float
	===    gr23 - fr4    ===

I wonder what happens if the call was int,int,float... and if that
would make a difference :)

/me goes to check

Hrmm...

        int    gr26 - fr7    ===
        int    gr25 - fr6    float
        ===    gr24 - fr5    === 
        ===    gr23 - fr4    ===

Not sure why that doesn't happen in the first example. Though 
I am no guru at this :)

Any help from more knowledgable parties would be helpful.

c.



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Xref: news.gmane.org gmane.linux.ports.parisc:14472

> > 
> > So, are the first four floats/doubles in an arg list always passed in 
> > registers?

No.  Although it might seem that you could pass 4 floats and 4 ints, this
is not done.  The 32-bit linux ABI is exactly the same as the 32-bit hpux ABI
except that argument relocations aren't done.  There are situations (e.g.,
indirect calls) where an argument is passed in both general and floating
registers under hpux because the linker doesn't know how to relocate
the arguments for the call.  Thus, you can't use gr24 for an int argument
and fr5 for a different float argument.

This isn't going to change as changing the ABI would require recompilation
of everthing, as well as modifications to gcc, binutils, gdb and the
runtime documentation.  You can find the HP runtime documents here:
<http://h21007.www2.hp.com/dspp/tech/tech_TechTypeListingPage_IDX/1,1704,10403,00.html>.

> > 
> > How about func(int, float, int, double, int, float)?
> > 
> >
> 
> A float fits into a single fr register.
> A double fits into two fr registers (fr7 (uses fr6),fr5 (uses fr4)) 
> 
> 
> 	int    gr26 - fr7    ===
> 	===    gr25 - fr6    ===
> 	int    gr24 - fr5    float
> 	===    gr23 - fr4    ===

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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I have investigated the failure of gcc.c-torture/execute/arith-rand.c
under hppa-linux.  The failure is caused by $$remI returning an incorrect
signed result when the divisor is 0x80000000 (largest negative integer).
The 32-bit linux port currently uses the millicode routines in milli32.S.
This is older code dating from 1995.

The 64-bit port uses milli64.S.  This code looks like it was originally
written for 32-bit but I it's possible some changes have been made
that would make it incompatible with 32-bit registers.  Paul and Alan,
could you comment on this?

I added $$dyncall to milli64.S and modified t-linux to use milli64.S.
This fixes the arith-rand.c fail and there are no other regressions,
so I think we can use milli64.S on both the 32-bit and 64-bit ports.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2002-03-30  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* milli64.S ($$dyncall): New function.
	* t-linux (LIB1ASMFUNCS): Revise module list.
	(LIB1ASMSRC): Use pa/milli64.S.

--- milli64.S.orig	Mon Feb  4 15:25:13 2002
+++ milli64.S	Fri Mar 29 19:36:28 2002
@@ -194,6 +194,30 @@
 #define LREF(sym)	 CAT(L$,sym)
 #endif
 
+#ifdef L_dyncall
+	SUBSPA_MILLI
+	ATTR_DATA
+GSYM($$dyncall)
+	.export $$dyncall,millicode
+	.proc
+	.callinfo	millicode
+	.entry
+	bb,>=,n %r22,30,LREF(1)		; branch if not plabel address
+	depi	0,31,2,%r22		; clear the two least significant bits
+	ldw	4(%r22),%r19		; load new LTP value
+	ldw	0(%r22),%r22		; load address of target
+LSYM(1)
+#ifdef LINUX
+	bv	%r0(%r22)		; branch to the real target
+#else
+	ldsid	(%sr0,%r22),%r1		; get the "space ident" selected by r22
+	mtsp	%r1,%sr0		; move that space identifier into sr0
+	be	0(%sr0,%r22)		; branch to the real target
+#endif
+	stw	%r2,-24(%r30)		; save return address into frame marker
+	.exit
+	.procend
+#endif
 
 #ifdef L_divI
 /* ROUTINES:	$$divI, $$divoI
--- t-linux.orig	Thu Mar 28 19:29:46 2002
+++ t-linux	Fri Mar 29 19:40:36 2002
@@ -1,13 +1,9 @@
 #Plug millicode routines into libgcc.a  We want these on both native and
-#cross compiles.
+#cross compiles.  We use the "64-bit" routines because the "32-bit" code
+#is broken for certain corner cases.
 
-LIB1ASMFUNCS =  _divI _divU _remI _remU _multiply \
-	_divI_15 _divI_14 _divI_12 _divI_10 _divI_9 \
-	_divI_7 _divI_6 _divI_5 _divI_3 \
-	_divU_15 _divU_14 _divU_12 _divU_10 _divU_9 \
-	_divU_7 _divU_6 _divU_5 _divU_3 _dyncall

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> 
> No.  Although it might seem that you could pass 4 floats and 4 ints, this
> is not done.  The 32-bit linux ABI is exactly the same as the 32-bit hpux ABI
> except that argument relocations aren't done.  There are situations (e.g.,
> indirect calls) where an argument is passed in both general and floating
> registers under hpux because the linker doesn't know how to relocate
> the arguments for the call.  Thus, you can't use gr24 for an int argument
> and fr5 for a different float argument.
> 
> This isn't going to change as changing the ABI would require recompilation
> of everthing, as well as modifications to gcc, binutils, gdb and the
> runtime documentation.  You can find the HP runtime documents here:
> <http://h21007.www2.hp.com/dspp/tech/tech_TechTypeListingPage_IDX/1,1704,10403,00.html>.
>

It's clear that you can't pass 8 words, since the 32-Bit ABI says that
only the first 4 words are passed in registers as parameters for a function (2-26).

I'm not sure what's implied by the need for 4 words of "spill over" in the stack
for the first 4 arguments to the function call.

int,int,float produces:

	Produced	Produced		Expected

	int	gr26	fr7	-----		===	float
	int	gr25	fr6	float		===	-----
	---	gr24	fr5	-----		---	-----
	---	gr23	fr4	-----		---	-----

int,float,int produces:

	Produced	Produced		Expected

	int	gr26	fr7	-----		===	float
	---	gr25	fr6	-----		int	-----
	int	gr24	fr5	float		---	-----
	---	gr23	fr4	-----		---	-----

int,float,double produces:

	Produced	Produced		Expected

	int	gr26	fr7	double		===	float
	---	gr25	fr6	+++		---	---
	---	gr24	fr5	float		---	double
	---	gr23	fr4	---		---	+++


I generally read from the 274 Page pdf HPUX 11.00 v1.0
 "The 32-Bit PARISC Run-Time Architecture Document"

It's become a little game lately ;) I build some code, and try to 
second guess what the .s file will contain... and I'm usually wrong.
Which just means that I need to start looking at more code to see
how things were implemented.


Lately I was thrown by the call to printf (vararg):

char*,int,double,int,float,int,float:

	Produced		Produced	

        char		gr26	fr7	doubleH
        int		gr25	fr6	doubleL
        doubleH		gr24	fr5	-----
        doubleL		gr23	fr4	-----

Which really leaves me scratching my head, since gr24 and gr23
shouldn't be used for relocation in this case? I guess varargs
are another cute case :}

--

Re: New ABI -> Possibly minimal perforamnce increase, and loss of HPUX compatibility.

>From my current reading, removing register relocation doesn't hinder 
compatibility in any way?

I'm still not familiar with all the situations that might occur in indierct
calls (or all regular calls for the matter).

Thanks for all the patience jda.

c. 




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> It's clear that you can't pass 8 words, since the 32-Bit ABI says that
> only the first 4 words are passed in registers as parameters for a function (2-26).
> 
> I'm not sure what's implied by the need for 4 words of "spill over" in the stack

I some situations, the callee needs to save the argument registers on
the stack.  There are 4 words reserved for this.

> for the first 4 arguments to the function call.
> 
> int,int,float produces:
> 
> 	Produced	Produced		Expected
> 
> 	int	gr26	fr7	-----		===	float
> 	int	gr25	fr6	float		===	-----
> 	---	gr24	fr5	-----		---	-----
> 	---	gr23	fr4	-----		---	-----

You've got the order of the float registers reversed.  They are allocated
in order of increasing number starting with fr4.

> Lately I was thrown by the call to printf (vararg):
> 
> char*,int,double,int,float,int,float:
> 
> 	Produced		Produced	
> 
>         char		gr26	fr7	doubleH
>         int		gr25	fr6	doubleL
>         doubleH		gr24	fr5	-----
>         doubleL		gr23	fr4	-----
> 
> Which really leaves me scratching my head, since gr24 and gr23
> shouldn't be used for relocation in this case? I guess varargs
> are another cute case :}

Again, reverse the order of the float regs and it makes more sense.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> You've got the order of the float registers reversed.  They are allocated
> in order of increasing number starting with fr4.

I should add that the numbering of the floating registers depends on
processor variant.  PA 1.0 had 16 floating registers holding word or
double word values.  PA 1.1 has 32 floating registers and each half
are separately addressable.  See pa32-regs.h for more details.  The
ABI was designed for the base 1.0 processor.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: [parisc-linux] IDE Harddisks in a C3K
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Anyone experienced with using IDE hdd's in a C3K?

Because i got some issue's with this, i'm just trying to see if it works, but it
crashes the complete system when using IDE hhd's.
Mounting the disk is no problem, but copying and moving stuff around causes
the system to crash, a stack dump.
After booting the system and then trying to mount i get warning that
partitions are not clean and should be fsck'd.
When doing this it can go good or bad, bad means again a stack dump.
A Portion of the stack dump you can find below, this one was caused while
copying data.

What i noticed when FSCKing, Copying or Moving stuff all the free memory
will be used up at the end, when endig the process i get the memory back.
Mainly i think there is problem with the VM, because a lot of dumps show VM
errors.

I have not connected the IDE cd-rom now, but when i was using this i never
noticed the problems above.

Are IDE badly supported or no one realy tried it yet?

<stack dump>
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x2a858000 to 0x2a8586c0:
8000 8d363d03 5de563a5 aef06f1a 6839cb5c 48cf9be9 04eb4f29 4ff570f8 57aa980f
8020 c1869084 9d23356d 738650a1 0375b1b9 995cc486 3c36d9d4 8c6925d2 6dc55d09
8040 60ca8ad2 7237b043 8ceb2e0d 966356b6 621e72de f753458d 34da7885 82518273
8060 809c0e0d 29ec537f b1dfffff ffffffff ffeaf927 51913498 052b3bdc 4dfface0
8080 c7d818e1 6a23dfdc da144af5 71705417 f6f6d374 f21f12ae 87ac9c34 1200cf16
80a0 1276b824 c3bd449a 4f1f824c 6f1dc731 a0ac3155 468aa2b1 8f9672ea 8a788c88
80c0 d8a36274 a454d9c1 5511b214 0dc2d7d6 a3e59b4a ddd77fd2 bfe6bafb f7c56247
80e0 0fa0e099 eb31ea2a c275094f 155356c5 219882dc a76edb72 d38d2b1f 5970a4f0
8100 181b609e 72aa5bfa 4581fbea a14f50f4 384e8df5 4be34cf9 20e65aaa 23290e49
8120 92474664 73b0b353 a84b9214 74296654 b8d98d5b 019174ed c1912dbb d1f4d0bc
8140 3c45d408 76be6db8 b34fadd7 d2df77f1 6a504c98 c40b9ff7 dfffffff ffffffff
8160 ffa86213 d1e4997d 54058add 6e4f0c89 9dc00dca 958572ce 2b05409d 3456cee3
8180 e5476481 3c2f2501 cece9727 26fffba0 04c98003 c5305603 2f7a6074 670ae061
81a0 ef5c0f58 e1580cbd eb81f11d eb4197bd 703d83d8 e301dc5a 0be93d09 a56a895e
81c0 84378651 b741cc29 2896b431 813eaf8a 88428e82 773ae673 e5ca1c06 fc3e55bc
81e0 2e4c70bb e83a7d1f bba376dd c3dea2bd f1fcff74 ff50e0ea af717f59 f4d79573
8200 7a6a1c2c ee686ba2 ee274b39 dc2a410c b9f2b8aa 9b2ee7fa d214ae6f 683a154b
8220 a518b21a 4ac3bcff 42d72822 db052065 89993655 b9a18c6d 012a3a45 84e9434b
8240 b96f7ce6 7a9e2aa4 bb1ab8e7 4ea410dc 32c66541 297adb09 ce959585 7e24b7df
8260 810615eb 023c7a47 c7bd6def 8dc7d52d 68162611 1006d4b6 a47c5af8 49dd7f50
8280 51bc8185 53214d56 85793b93 01b4e606 e2cb6433 39654b56 5d4eb1e3 f2e66b17
82a0 8db76a0b 96dbbb91 44ad43c5 5b4cb1a5 269aab48 1bf5f83c 8eb5c16f 99568845
82c0 87b20c63 1784a9b4 9b4250e5 5284b651 957d70a5 38d81918 94383728 fecfa90e
82e0 d6859648 4d986187 a8b1b75c ef38ae35 278d1e4d 5ed6d66d 2a14dbd0 ba4bde6b
8300 ce23402a 3a22b599 35696baf 38f44062 43276050 668a5aa7 588bf17d 42859ac7
8320 e3239ab0 fa807405 d8e62fb3 27c57c8b 4e9baf46 046360e3 8c911ca6 e30a458d
8340 91c1171e d0d3d159 61a754cc 2d87131d f08e4ebe 78d94708 b7cda90e b7d5696c
8360 d64dd339 95c05001 81184416 7b1c97d5 bdd7d040 58240ac2 22497664 2f2bfeca
8380 e2f216b0 ad438e88 8e0f2f1e 158bc974 45120462 14a12fff fba204ca 8003e837
83a0 d5832f7a e07e476a d06b0f5c 0eb4cd56 0cbdeb81 dc9d6b81 a7bd70c9 94bad2b5
83c0 4a1d0618 d834e22f 97b3ac93 81a2883b 0c66c186 6613956a 6134668e 7913c75a
83e0 5cbe2edb 93b590bb aa92b0b0 d6c4cb22 86489363 4ff52dae e2e19899 96d9bff9
8400 cfd6afac 5f35bee0 e35a8d85 6a8d1535 1b174581 60263ab3 5be9c92c 38b8626e
8420 98d52a57 387b891e 2f59735e 5ca75e16 d6091207 d92f460e 916c2fc1 6813d208
8440 09a274da 691bcae4 b0bd25c8 2ba90962 75a54286 c53359d8 1b4e8573 12975a5d
8460 cca06bc4 78cf95ec 559a47d7 8d0b70a7 b4d3448b 5d6e4d14 98061a32 851572c5
8480 7fffffff ffffffff fff5c930 12e56e00 875d2244 bf5962d1 13a5db61 4bbd55b3
84a0 cb787b8e 509f8649 a2869714 72ed143d 28b36e09 500811d0 02c0f000 d4b694e1
84c0 cccec03b 990d2596 e6c4ca54 62b2a7cb 0ab0b8a7 0b198a87 2e8fa8cb 105747cb
84e0 921284b6 4551c060 b45a6fbd edd4cd7c b36336ad 73f36c63 3a8d9cef 568f1828
8500 d44ed215 ce19dc14 50381a96 282404d7 a2152ad3 2a7270b7 2790ec2b 9fb351c5
8520 a8739faa c5c0f684 e2600e05 02ed540b 22910b4d 1ea441c6 0d14d13b 3c0f131c
8540 e53a03f9 8c639c48 c44b2a22 89e552a6 29db5533 6a75f4f0 fb0ac2b1 9b4fef3e
8560 9be359f5 37bd45b6 20d299cc 7d02a100 d1f34173 2d7a0a9d 31fa8961 18016106
8580 8bec9a89 e0b6a9a9 207869ac 2928f520 a245478a 7a30a7d3 aa350ad3 4a14870d
85a0 e710fffb a004ca00 03e23255 836f7ae0 78a71ad0 65ef5c0e eccb540d 3deb81eb
85c0 1c2b01a7 bd71522c a187d126 0c60981d e6f09a8b 4a254e58 0b79332b 4988cd21
85e0 40ca0cf2 0cab2fca 55f88e24 85ac96c6 54c14537 abce95c3 f9535562 59382683
8600 7b561673 aaee6ff7 79ad57b3 db7feeb8 f6b41ba5 585a9aeb 1b149416 b179d763
8620 d10eda9e 90dc8551 b59cc774 d5730c96 2259144d e12185a3 b507b4cc 0d682553
8640 107cc00f 81343793 962c310c c18345c7 c6c2a1b1 58987ea1 5b828269 dc7f53c1
8660 cc96a8b0 5c8a385e 73ed17c4 7f463aaf e6b97c69 d8dd7e66 f7bc0e31 7e04267c
8680 553729b7 9397bbd3 fc67033c 51235225 ad3c0e15 59a749d2 54f5b518 9cb3377b
86a0 afb410d0 61c698c4 2e3debc7 b0e47980 4ba1c537 82543054 6ced94a0 bae5634e

Kernel Fault: Code=26 regs=1a8586c0 (Addr=00000007)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 1031f810 1012ddc8 ffffffff
r04-07  00000001 263ff120 ffffffff 00000001
r08-11  00000000 2ff00110 263ff080 faf01250
r12-15  00001000 00000000 fffffff4 263ff120
r16-19  1a8585cc 2e47f140 00000000 0001ffff                                   
r20-23  0000009f 00000044 00000131 2ff00000
r24-27  ffffffff 00000001 263ff120 10304010
r28-31  ffffffea 0000000e 1a8586c0 10139fe4
sr0-3   00000000 00000478 00000000 00000478
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1012ae24 1012ae28
 IIR: 0c701093    ISR: 00000000  IOR: 00000007
 CPU:        0   CR30: 1a858000 CR31: 103b8000
 ORIG_R28: 6f707172
</stack dump>



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Subject: [parisc-linux] parisc-linux semi-booting on an HP 3000 947
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Hi,
   Just for fun I though I'd try running parisc-linux on my HP 3000 947
which is in need of an OS since I don't have MPE/iX tapes. It actually
booted off the latest CD image, but it freezes once it gets to the "If
this is the last message you see, you need to switch your console"
message. From what I've read, I assume this means that there's no
console driver written for this machine, which isn't suprising since it
isn't on the list of supported machines. Any idea if there's a way
around this, or if the NetBSD or OpenBSD ports might support it? Thanks
in advance.
   Chris.




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] parisc-linux semi-booting on an HP 3000 947
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Xref: news.gmane.org gmane.linux.ports.parisc:14479

On Sun, Mar 31, 2002 at 07:38:18PM -0500, ccollet@gmu.edu wrote:
> Hi,
>    Just for fun I though I'd try running parisc-linux on my HP 3000 947
> which is in need of an OS since I don't have MPE/iX tapes. It actually
> booted off the latest CD image, but it freezes once it gets to the "If
> this is the last message you see, you need to switch your console"
> message. From what I've read, I assume this means that there's no
> console driver written for this machine, which isn't suprising since it
> isn't on the list of supported machines. Any idea if there's a way
> around this, or if the NetBSD or OpenBSD ports might support it? Thanks
> in advance.

According to my search of the mailing list archives, it's equivalent to a
G30 in HPUX land.  The console driver is indeed the problem.  You could
use Christoph Plattner's hack to get console output, but I'm not sure
what other devices you might have that would work.  Probably the ethernet
will work, and the SCSI won't.

-- 
Revolutions do not require corporate support.



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Subject: Re: [parisc-linux] parisc-linux semi-booting on an HP 3000 947
Date: Mon, 1 Apr 2002 03:07:37 +0100
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On Mon, Apr 01, 2002 at 02:16:52AM +0100, Matthew Wilcox wrote:
> According to my search of the mailing list archives, it's equivalent to a
> G30 in HPUX land.  The console driver is indeed the problem.  You could
> use Christoph Plattner's hack to get console output, but I'm not sure
> what other devices you might have that would work.  Probably the ethernet
> will work, and the SCSI won't.

Oops, got confused between G and E class.  G class has NIO lan, console
and scsi, so you're basically completely hosed.

-- 
Revolutions do not require corporate support.



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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] Initial port of kdb to parisc-linux
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Xref: news.gmane.org gmane.linux.ports.parisc:14481

Greetings,

It's amazing how much you can get done when you are procrastinating from
doing what you are supposed to be doing. The result, a first cut of a
port of SGI's kdb to parisc-linux.

There is a patch against kdb version 2.1 at
ftp://ftp.parisc-linux.org/patches/kdb-v2.1-2.4.18-pa11-parisc-1.bz2

It is meant to be applied over the kdb-v2.1-2.4.18-common-2.bz2 patch.
(I would give a url, but sgi's ftp site seems to be down as i write
this)

The basic commands like disassembly, memory/register dumps, setting breakpoints,
backtracing, etc work. Single stepping does not yet work though. Also, right 
now this only works on 32-bit kernels. There are a few things that need to be
fixed for 64-bit to work -- 

1. modutils doesn't handle building 64-bit kdb-enabled kernels when running 
a 32-bit kernel (kallsyms will fail).  

2. Once you hack around #1, you run into problems because the parisc64
compiler for some reason emits .dynsym/.dynamic sections into the
kernel. This confuses modutils to no end. There's a small patch in the
pa patch above that discards the dynamic sections. I'm dubious this is
the right thing to do, though it does build a kernel that will boot and
start kdb

3. After #1/#2, we run into a problem because hppa64 binutils doesn't
seem to sort unwind sections entirely correctly, so the backtracing
logic will fail.

I've only tested this on serial console. Virtual console probably
doesn't work yet (the pause key mapping code is missing). Also as
explained on the kdb mailing list the code only works with ps2 type
keyboards; someone will need to write a polling usb driver to use this
with a usb keyboard.

There is still much work to do... the unwind code in particular is quite
crude and could be much enhanced. please try out the patch and feel free
to send bug reports, patches, etc :-)

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] IDE Harddisks in a C3K
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DJ Tha Muggs wrote:
> Anyone experienced with using IDE hdd's in a C3K?

Not me. I've only used the CD-ROM drive.
Note that suckyio got it's nick name for a reason.
I'm not sure I'd trust R/W data behind that interface.
Maybe if I could beat on it for a few days without errors,
I might change my mind. But I've got no incentive to do so.

> Are IDE badly supported or no one realy tried it yet?

probably both. 

> <stack dump>
> WARNING! Stack pointer and cr30 do not correspond!

This msg probably means a driver referenced a user space
pointer without copy_from_user() or changing the "DS".

...
> Dumping virtual address stack instead
> 
> Dumping Stack from 0x2a858000 to 0x2a8586c0:

*sigh*. I'm looking forward to stack unwinds under kdb.

...
> Kernel Fault: Code=26 regs=1a8586c0 (Addr=00000007)

variant of a data page fault.

> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001101111111100001111 Not tainted
> r00-03  00000000 1031f810 1012ddc8 ffffffff

Return Pointer of most recent subroutine call.

> r20-23  0000009f 00000044 00000131 2ff00000
> r24-27  ffffffff 00000001 263ff120 10304010

Args are in r26, r25, ...

> IASQ: 00000000 00000000 IAOQ: 1012ae24 1012ae28

1012ae24 is address of faulting instruction.
Start here.

grant



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Subject: [parisc-linux] Re: $$remI corner case
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> I have investigated the failure of gcc.c-torture/execute/arith-rand.c
> under hppa-linux.  The failure is caused by $$remI returning an incorrect
> signed result when the divisor is 0x80000000 (largest negative integer).
> The 32-bit linux port currently uses the millicode routines in milli32.S.
> This is older code dating from 1995.

My memory is hazy here, but I think the 32-bit code is from the original
hpux gcc port.  The 64-bit code is some I had permission to port right
from the latest version available at the time, last year or whenever that
was.

Alan made it fit better with the gcc infrastructure (put it all
in one file with those #ifdefs).

> The 64-bit port uses milli64.S.  This code looks like it was originally
> written for 32-bit but I it's possible some changes have been made
> that would make it incompatible with 32-bit registers.  Paul and Alan,
> could you comment on this?

Millicode calling conventions are incompatible for 32 and 64-bit,
the return value register is the thing I remember right now and
may be the only difference.

> I added $$dyncall to milli64.S and modified t-linux to use milli64.S.
> This fixes the arith-rand.c fail and there are no other regressions,
> so I think we can use milli64.S on both the 32-bit and 64-bit ports.

It looks like the appropriate #ifdefs are present in milli64.S so
that it can be used as-is for 32-bit (so long as the "pa64" CPP
symbol is properly defined).

	-P



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> > I added $$dyncall to milli64.S and modified t-linux to use milli64.S.
> > This fixes the arith-rand.c fail and there are no other regressions,
> > so I think we can use milli64.S on both the 32-bit and 64-bit ports.
> 
> It looks like the appropriate #ifdefs are present in milli64.S so
> that it can be used as-is for 32-bit (so long as the "pa64" CPP
> symbol is properly defined).

We have the appropriate #ifdefs and defines to handle the different
return conventions.  My only real concern was some corner case arising
from the difference in register size.  If Alan doesn't recall anything
in the next day or so, I will apply the patch to the gcc trunk.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] LM Bench results on the Same C200 between HP-UX 10.20 and
 parisc-linux 2.4.18-pa11
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Hello parisc-linux hackers,


Here are the LM Bench Mark results I recently ran on my C200+.  The
HP-UX 10.20 bits are a couple of years old and not current on patches.

The 2.4.18-pa11 box is running debian unstable and is current.

Neither OS was tuned for this bench mark, but but OS were run on the
same box with the Same hardware configuration.


Hopefully these results someone will find interesting.....

- Ryan



                 L M B E N C H  2 . 0   S U M M A R Y
                 ------------------------------------


Basic system parameters
----------------------------------------------------
Host                 OS Description              Mhz
                                                    
--------- ------------- ----------------------- ----
vega      HP-UX B.10.20    hppa2.0-hp-hpux10.20  200
vega      HP-UX B.10.20    hppa2.0-hp-hpux10.20  200
vega      Linux 2.4.18-       hppa2.0-linux-gnu  200
vega      Linux 2.4.18-       hppa2.0-linux-gnu  200

Processor, Processes - times in microseconds - smaller is better
----------------------------------------------------------------
Host                 OS  Mhz null null      open selct sig  sig  fork exec sh  
                             call  I/O stat clos TCP   inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ----
vega      HP-UX B.10.20  200 0.83      25.9 37.9 160.1 8.15 30.2 1855 5224 19.K
vega      HP-UX B.10.20  200 0.82      26.0 40.3 157.5 8.11 30.2 1827 5185 19.K
vega      Linux 2.4.18-  200 1.46 2.89 15.8 18.7 151.5 5.01 29.1 12.K 35.K 102K
vega      Linux 2.4.18-  200 1.46 2.86 15.9 18.7 151.9 5.01 28.9 12.K 35.K 101K

Context switching - times in microseconds - smaller is better
-------------------------------------------------------------
Host                 OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
                        ctxsw  ctxsw  ctxsw ctxsw  ctxsw   ctxsw   ctxsw
--------- ------------- ----- ------ ------ ------ ------ ------- -------
vega      HP-UX B.10.20 9.020   11.4  452.3  361.5  347.0   173.1   399.6
vega      HP-UX B.10.20 9.010  279.5   24.9   31.0  357.2    49.7   286.8
vega      Linux 2.4.18- 2.760   42.3  158.1   51.2  177.9    53.3   181.2
vega      Linux 2.4.18- 3.460   42.3  158.8   52.7  180.2    53.9   180.5

*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host                 OS 2p/0K  Pipe AF     UDP  RPC/   TCP  RPC/ TCP
                        ctxsw       UNIX         UDP         TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
vega      HP-UX B.10.20 9.020  64.4 79.2 119.4 554.9 126.8 411.2 309.
vega      HP-UX B.10.20 9.010  46.9 82.7 116.2 614.5 128.4 290.3 289.
vega      Linux 2.4.18- 2.760  28.9 47.7  77.4 187.6  98.5 273.0 425.
vega      Linux 2.4.18- 3.460  32.4 49.1  77.7 192.5  98.6 273.6 434.

File & VM system latencies in microseconds - smaller is better
--------------------------------------------------------------
Host                 OS   0K File      10K File      Mmap    Prot    Page	
                        Create Delete Create Delete  Latency Fault   Fault 
--------- ------------- ------ ------ ------ ------  ------- -----   ----- 
vega      HP-UX B.10.20  12.8K 8403.4  22.2K 8403.4  7807.8K  20.7   10.7K
vega      HP-UX B.10.20  13.2K 8403.4  22.2K 8333.3  7749.9K  37.2   10.7K
vega      Linux 2.4.18-  185.2   33.2  601.0   78.3    35.7K 2181.    26.0
vega      Linux 2.4.18-  185.9   33.1  606.4   78.8    10.0K 2166.    25.0

*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------
Host                OS  Pipe AF    TCP  File   Mmap  Bcopy  Bcopy  Mem   Mem
                             UNIX      reread reread (libc) (hand) read write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
vega      HP-UX B.10.20 165. 101. 40.4  102.8  136.2   87.9   65.1 119. 101.9
vega      HP-UX B.10.20 177. 103. 67.8  103.5  138.4   86.4   63.9 121. 101.4
vega      Linux 2.4.18- 19.7 20.0 18.8   35.3  240.3  125.3  127.8 239. 196.6
vega      Linux 2.4.18- 19.7 20.0 36.5   30.9  240.0  126.1  127.7 240. 196.8

Memory latencies in nanoseconds - smaller is better
    (WARNING - may not be correct, check graphs)
---------------------------------------------------
Host                 OS   Mhz  L1 $   L2 $    Main mem    Guesses
--------- -------------  ---- ----- ------    --------    -------
vega      HP-UX B.10.20   200  15.0   15.0  518.6    No L1 cache?
vega      HP-UX B.10.20   200  15.0   15.0  519.0    No L1 cache?
vega      Linux 2.4.18-   200  15.0   15.0  287.2    No L1 cache?
vega      Linux 2.4.18-   200  15.0   15.0  286.7    No L1 cache?




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while we are on the subject, posting these per Grant's request:

gsyprf10 == Quad 500MHz PIII Xeon 768M RAM
pippin == Dual 800Mhz ia64 2G RAM
legolas == 400MHz c3000 parisc 2G RAM


                 L M B E N C H  2 . 0   S U M M A R Y
                 ------------------------------------


Basic system parameters
----------------------------------------------------
Host                 OS Description              Mhz
                                                    
--------- ------------- ----------------------- ----
gsyprf10  Linux 2.4.18-       i686-pc-linux-gnu  500
gsyprf10  Linux 2.4.18-       i686-pc-linux-gnu  500
pippin     Linux 2.4.17                  pippin  800
legolas   Linux 2.4.18-                 legolas  399

Processor, Processes - times in microseconds - smaller is better
----------------------------------------------------------------
Host                 OS  Mhz null null      open selct sig  sig  fork exec sh  
                             call  I/O stat clos TCP   inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ----
gsyprf10  Linux 2.4.18-  500 0.66 1.15 3.98 6.11  63.1 1.79 5.42 500. 1695 5942
gsyprf10  Linux 2.4.18-  500 0.66 1.12 4.01 6.26  57.9 1.82 5.42 501. 1698 6003
pippin     Linux 2.4.17  800 0.56 0.81 2.89 4.69  38.3 1.07 3.52 381. 1559 7058
legolas   Linux 2.4.18-  399 0.70 1.26 6.78 7.46  62.0 2.18 14.7 3030 9459 27.K

Context switching - times in microseconds - smaller is better
-------------------------------------------------------------
Host                 OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
                        ctxsw  ctxsw  ctxsw ctxsw  ctxsw   ctxsw   ctxsw
--------- ------------- ----- ------ ------ ------ ------ ------- -------
gsyprf10  Linux 2.4.18- 3.360   11.9   43.1   18.6   45.7    19.4    54.4
gsyprf10  Linux 2.4.18- 3.540   12.1   43.1   19.4   46.2    19.4    46.8
pippin     Linux 2.4.17 6.350 9.5200   35.7   18.4   42.7    19.4    69.7
legolas   Linux 2.4.18- 1.260 1.2100 1.0400   20.2   84.6    27.4    97.3

*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host                 OS 2p/0K  Pipe AF     UDP  RPC/   TCP  RPC/ TCP
                        ctxsw       UNIX         UDP         TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
gsyprf10  Linux 2.4.18- 3.360  14.8 35.6  80.7 123.3  98.1 151.3 227.
gsyprf10  Linux 2.4.18- 3.540  14.7 35.3  80.5 123.0  98.4 150.1 225.
pippin     Linux 2.4.17 6.350  17.1 32.0  44.1  73.2  60.0 104.6 111.
legolas   Linux 2.4.18- 1.260  12.7 19.2  29.4  57.4  35.6  80.0 143.

File & VM system latencies in microseconds - smaller is better
--------------------------------------------------------------
Host                 OS   0K File      10K File      Mmap    Prot    Page	
                        Create Delete Create Delete  Latency Fault   Fault 
--------- ------------- ------ ------ ------ ------  ------- -----   ----- 
gsyprf10  Linux 2.4.18-   62.2   10.3  174.5   31.2   4049.0 1.448 5.00000
gsyprf10  Linux 2.4.18-   62.2   10.3  174.6   31.2   3924.0 1.437 5.00000
pippin     Linux 2.4.17   89.8   26.4  195.2   57.7   5460.0 1.298 4.00000
legolas   Linux 2.4.18-  102.5   42.5  392.2   81.8    15.2K 695.2    11.0

*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------
Host                OS  Pipe AF    TCP  File   Mmap  Bcopy  Bcopy  Mem   Mem
                             UNIX      reread reread (libc) (hand) read write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
gsyprf10  Linux 2.4.18- 227. 220. 99.3  207.0  280.1  185.3  160.1 280. 214.3
gsyprf10  Linux 2.4.18- 218. 221. 106.  206.4  280.1  185.2  160.2 280. 214.3
pippin     Linux 2.4.17 600. 464. 315.  267.9  160.7  428.4  106.8 161. 222.2
legolas   Linux 2.4.18- 47.8 48.9 82.3   74.0  472.9  205.2  207.5 472. 474.7

Memory latencies in nanoseconds - smaller is better
    (WARNING - may not be correct, check graphs)
---------------------------------------------------
Host                 OS   Mhz  L1 $   L2 $    Main mem    Guesses
--------- -------------  ---- ----- ------    --------    -------
gsyprf10  Linux 2.4.18-   500 6.001   36.0  212.1
gsyprf10  Linux 2.4.18-   500 6.002   36.0  212.1
pippin     Linux 2.4.17   800 3.786   27.8  244.1
legolas   Linux 2.4.18-   399 7.502 7.5020  184.8    No L1 cache?

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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On Mon, Apr 01, 2002 at 12:28:40PM -0500, John David Anglin wrote:
> > > I added $$dyncall to milli64.S and modified t-linux to use milli64.S.
> > > This fixes the arith-rand.c fail and there are no other regressions,
> > > so I think we can use milli64.S on both the 32-bit and 64-bit ports.
> > 
> > It looks like the appropriate #ifdefs are present in milli64.S so
> > that it can be used as-is for 32-bit (so long as the "pa64" CPP
> > symbol is properly defined).
> 
> We have the appropriate #ifdefs and defines to handle the different
> return conventions.  My only real concern was some corner case arising
> from the difference in register size.  If Alan doesn't recall anything
> in the next day or so, I will apply the patch to the gcc trunk.

No, I don't recall any such corner cases, but then I don't think
I ever looked into the code in any detail.  It was more a case of
doing robotic edits to suit the gcc build machinery.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre



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> 
> I some situations, the callee needs to save the argument registers on
> the stack.  There are 4 words reserved for this.
> 

Okay. I'll see if I can find those in the documentation.

> > 	int	gr26	fr7	-----		===	float
> > 	int	gr25	fr6	float		===	-----
> > 	---	gr24	fr5	-----		---	-----
> > 	---	gr23	fr4	-----		---	-----
> 
> You've got the order of the float registers reversed.  They are allocated
> in order of increasing number starting with fr4.
> 

Ah! Excellent. After looking at some more assembly output and reading...
I should have realized that it was the other way around :) Thanks.

Now some of my register allocation guessing is coming out correct :}

Serves me right for using complex examples all the time.

c.




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	Hi all.
I'm still looking for the HPA/SPA of the SCSI/IDE controler of a disk.
I've found, and able to write the system tree (like ioscan). The starting
point is "root". Now my problem is to find which controler for which disk.
The pointer of the disk (/dev/sd??) is the node. Example:
/dev/sda2 ->> sda2 -> 0x802 -> major:0x8 -> driver "sd" with minor:0x02
Now how can I link 0x802 to hardware path "2/0/1"
So where is the link between both ????? Do you have any idea ?????

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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On Tue, Apr 02, 2002 at 04:08:16PM +0200, Bruno Vidal wrote:
> 	Hi all.
> I'm still looking for the HPA/SPA of the SCSI/IDE controler of a disk.
> I've found, and able to write the system tree (like ioscan). The starting
> point is "root". Now my problem is to find which controler for which disk.
> The pointer of the disk (/dev/sd??) is the node. Example:
> /dev/sda2 ->> sda2 -> 0x802 -> major:0x8 -> driver "sd" with minor:0x02
> Now how can I link 0x802 to hardware path "2/0/1"
> So where is the link between both ????? Do you have any idea ?????

Hmm.  If you can get to the pci_dev or parisc_device for a scsi disc,
we have functions for returning the hwpath:

print_pci_hwpath
get_pci_node_path
print_pa_hwpath
get_node_path

I'm not sure how to get from `sda2' to the pci_dev of the controlling device.

-- 
Revolutions do not require corporate support.



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It is my pb, I don't know how to retrieve the pci_dev or parisc_device
from the `sda2' (the device file). I'm pretty sure that the solution
can comes from the `sd' drivers (btw which is the name for the
ide driver: ide ???). Because when using it, you have to give the device
nodes, so it should translate it somewhere to a pci_dev or parisc_device.

Thanks to people who know how to handle this.

Matthew Wilcox wrote:
> 
> I'm not sure how to get from `sda2' to the pci_dev of the controlling device.
> 
> --
> Revolutions do not require corporate support.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From - Thu Nov 08 21:22:19 2018
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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] How retrieving HPA/SPA with the device node
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Bruno Vidal wrote:
> The pointer of the disk (/dev/sd??) is the node. Example:
> /dev/sda2 ->> sda2 -> 0x802 -> major:0x8 -> driver "sd" with minor:0x02
> Now how can I link 0x802 to hardware path "2/0/1"
> So where is the link between both ????? Do you have any idea ?????

Well, there is a link. It's just not as obvious as the iotree.

drivers/scsi/sd.c:sd_open() finds the device:

	target = DEVICE_NR(inode->i_rdev);
	if (target >= sd_template.dev_max || !rscsi_disks[target].device)
		return -ENXIO;  /* No such device */

And sd.h has the definition for Scsi_Disk:
typedef struct scsi_disk {
	unsigned capacity;      /* size in blocks */
	Scsi_Device *device; 
	unsigned char ready;    /* flag ready for FLOPTICAL */
	unsigned char write_prot;       /* flag write_protect for rmvable dev */
	unsigned char sector_bit_size;  /* sector_size = 2 to the  bit size power */
	unsigned char sector_bit_shift;         /* power of 2 sectors per FS block */
	unsigned has_part_table:1;      /* has partition table */
} Scsi_Disk; 

Scsi_Device is *private*. It contains the ptr to Scsi_Host (defined
in hosts.h), an instance of a SCSI controller driver. And finally,
Scsi_Host has a pointer to pci_dev.

Since several of the data structures are intended to be private,
I suggest adding a function to sd.c (or scsi.c) that finds and returns
the pci_dev pointer:

struct pci_dev *sd_get_pci_dev(struct inode *inode)
{
	int target = DEVICE_NR(inode->i_rdev);
	Scsi_Device scsidev = rscsi_disks[target].device;

	if (target >= sd_template.dev_max || !scsidev)
		return NULL;  /* No such device */

	return (scsi_dev->host->pci_dev);
}


It would be nice if SCSI were part of the IO tree but I can understand
reasons for not doing it. In particular, SCSI over FC doesn't lend
itself to an IO Tree arrangement since it's really a "net". Put a SAN,
additional FC controllers from the same host, and a few thousand
LUNs out there and the IO tree can become an ugly mess to.

hth,
grant

ps. I had no clue how this worked until I tracked this down starting
    at sd_open().



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Grant Grundler wrote:
> Since several of the data structures are intended to be private,
> I suggest adding a function to sd.c (or scsi.c) that finds and returns
> the pci_dev pointer:

Well, looks like we *almost* have what we want in scsi_ioctl.c.
scsi_ioctl_get_pci() does about the same thing.
Maybe the right answer is to write another ioctl call that
does what you want. I don't know.

grant



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	Thanks a lot.
It solved my pb. Now I think I'll add a function in scsi.c.
Because I need the pointer to pci_dev. And I don't think it
can be usefull at user level. 

	Many thanks for your answers.

Grant Grundler wrote:
> 
> Grant Grundler wrote:
> > Since several of the data structures are intended to be private,
> > I suggest adding a function to sd.c (or scsi.c) that finds and returns
> > the pci_dev pointer:
> 
> Well, looks like we *almost* have what we want in scsi_ioctl.c.
> scsi_ioctl_get_pci() does about the same thing.
> Maybe the right answer is to write another ioctl call that
> does what you want. I don't know.
> 
> grant
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: Tim Robb <hecubus3rd@yahoo.com>
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I just noticed that in my C180xp there are two pci
slots.  (At least they look like pci :] )  I was
wondering are they supported?  As I don't have a evc
adapter I was thinking of installing a pci video card
to use it and was wondering if this is possible? 
Would a 3dlabs permedia 2 be supported?

Thanks,
Timothy Robb

__________________________________________________
Do You Yahoo!?
Yahoo! Tax Center - online filing with TurboTax
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On Wed, Apr 03, 2002 at 02:43:37AM -0800, Tim Robb wrote:
> I just noticed that in my C180xp there are two pci
> slots.  (At least they look like pci :] )  I was
> wondering are they supported?  As I don't have a evc
> adapter I was thinking of installing a pci video card
> to use it and was wondering if this is possible? 
> Would a 3dlabs permedia 2 be supported?

The PCI slots are supported -- but be warned they are probably 5V PCI
and most cards are 3.3V.  Also, initialising a graphics card usually
involves running the graphics card BIOS which is written in x86 assembly.

-- 
Revolutions do not require corporate support.



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The f0 partition needs to be able to hold one recovery kernel plus 265k plus
some roundoff -- so minimum size should probably be 8M just to be safe.

f0 is capable of holding both a narrow and a wide kernel plus a ramdisk,
which is how the installer works.  After woody perhaps we can arrange
for the install to put a recovery ramdisk as well as the customary
recovery kernel, into the f0 partition.  For that, 16M is probably
a good size.

	-P



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Subject: Re: [parisc-linux] palo, f0 partition (Re: Network install on 712/80)
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On Wed, Apr 03, 2002 at 08:35:49AM -0700, Paul Bame wrote:
> 
> The f0 partition needs to be able to hold one recovery kernel plus 265k plus
> some roundoff -- so minimum size should probably be 8M just to be safe.
> 
> f0 is capable of holding both a narrow and a wide kernel plus a ramdisk,
> which is how the installer works.  After woody perhaps we can arrange
> for the install to put a recovery ramdisk as well as the customary
> recovery kernel, into the f0 partition.  For that, 16M is probably
> a good size.

So, can I use "parted" to resize it?

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
"There are two ways of constructing a software design: One way is to
make it so simple that there are obviously no deficiencies, and the
other way is to make it so complicated that there are no obvious
deficiencies. The first method is far more difficult." 
 -C.A.R. Hoare




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On Wed, Apr 03, 2002 at 05:40:28PM +0200, Ralf Hildebrandt wrote:
> On Wed, Apr 03, 2002 at 08:35:49AM -0700, Paul Bame wrote:
> > 
> > The f0 partition needs to be able to hold one recovery kernel plus 265k plus
> > some roundoff -- so minimum size should probably be 8M just to be safe.
> > 
> > f0 is capable of holding both a narrow and a wide kernel plus a ramdisk,
> > which is how the installer works.  After woody perhaps we can arrange
> > for the install to put a recovery ramdisk as well as the customary
> > recovery kernel, into the f0 partition.  For that, 16M is probably
> > a good size.
> 
> So, can I use "parted" to resize it?

Don't know what parted would make of that; it doesn't understand about
'f0' partitions, so may not let you try to resize them.  You could
probably use parted to make enough space for a bigger one, then use
fdisk to actually create it.  you could use parted to create it, but
parted wont let you set the type to 'f0'.

Richard




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Subject: [parisc-linux] "unaligned access to ... at ip=..." problem with evms and jfs
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Hi all,

Thoses problems are not linked but similar by nature:

with evms-1.0.0, I still got thousand of messages:
Apr  3 19:05:48 palinux kernel: evms_lvdisplay(900): unaligned access to
0x0002461e at ip=0x40208b53

and with jfs-1.0.17:
Apr  3 19:11:24 palinux kernel: fsck.jfs(1483): unaligned access to 0xbff00717
at ip=0x0002eb3f

It seems harmless but not sure.

I query the ml db and found similar problems (and its solution :_) )(reiserfs:
http://lists.parisc-linux.org/hypermail/parisc-linux/5862.html), but I do not
very well understand what I have to find the sources (_u32* ?).

Thanks in advance for additional help,
    Joel

-------------------------------------------------
This mail sent through Tiscali Webmail (http://webmail.tiscali.be)



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> It seems harmless but not sure.

well.... in general this is not a problem, however....

Fleedwood found a bug in the unaligned handler last week. it doesn't
handle the pre/post increment cases of load and store, and there may be
some cases where these messages will indicate the cause of errors.

I'll look into fixing this, but it might take some time.

> I query the ml db and found similar problems (and its solution :_) )(reiserfs:
> http://lists.parisc-linux.org/hypermail/parisc-linux/5862.html), but I do not
> very well understand what I have to find the sources (_u32* ?).

it depends, you need to make sure all the memory accesses happen on
natural boundaries...  (e.g. int on 4 byte boundaries, short on 2 byte
boundaries, etc). From the ip reported by the unaligned message you
should be able to trace back to the asm insn and function (if your
objects are not stripped) that is causing the unaligned access.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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I'm trying to generate  a beep from a bash shell script on my 712/60

the command i'm using is 

echo -e "\a"

which on a i486 box running kernel 2.2.19 & bash version 2.03 does beep

the 712/60 is running kernel 2.4.17-32, bash version 2.05a.0 doesnt

any ideas anybody ?

Thanks

James S









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James S wrote:
> I'm trying to generate  a beep from a bash shell script on my 712/60

Do you know if the audio driver is working for you in general?
ie mpg321 works?

grant



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Quoting Randolph Chung <randolph@tausq.org>:

> > It seems harmless but not sure.
> 
> well.... in general this is not a problem, however....
> 
> Fleedwood found a bug in the unaligned handler last week. it doesn't
> handle the pre/post increment cases of load and store, and there may be
> some cases where these messages will indicate the cause of errors.
> 
> I'll look into fixing this, but it might take some time.
> 

Well I will be patient as till now (at least a month) evms seems to works
correctly :-)

> > I query the ml db and found similar problems (and its solution :_)
> )(reiserfs:
> > http://lists.parisc-linux.org/hypermail/parisc-linux/5862.html), but I
> do not
> > very well understand what I have to find the sources (_u32* ?).
> 
> it depends, you need to make sure all the memory accesses happen on
> natural boundaries...  (e.g. int on 4 byte boundaries, short on 2 byte
> boundaries, etc). From the ip reported by the unaligned message you
> should be able to trace back to the asm insn and function (if your
> objects are not stripped) that is causing the unaligned access.

Humm... in evms (not yet investigate jfs) I notice that 4-byte variables are
pass to function parameters actualy 2-byte without casting. Could this be a reason?

> 
> randolph
> -- 
>    @..@                                         http://www.TauSq.org/
>   (----)
>  ( >__< )
>  ^^ ~~ ^^
> 
> 

Thanks for explanation,
    Joel

-------------------------------------------------
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> Quoting Randolph Chung <randolph@tausq.org>:
> 
> > > It seems harmless but not sure.
> > 
> > well.... in general this is not a problem, however....
> > 
> > Fleedwood found a bug in the unaligned handler last week. it doesn't
> > handle the pre/post increment cases of load and store, and there may be
> > some cases where these messages will indicate the cause of errors.
> > 
> > I'll look into fixing this, but it might take some time.
> > 
> 
> Well I will be patient as till now (at least a month) evms seems to works
> correctly :-)

We used to have a huge number of page faults filling log files on gsyprf11.
This was mysteriously fixed a few weeks ago.  Anybody know what fixed the
problem?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> Do you know if the audio driver is working for you in general?
> ie mpg321 works?
>
> grant
>

yes it does & can play mp3s, but surely the 'beep' is independant of the
sound driver - the 486 has no sound card, for example.

James S





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On Thu, Apr 04, 2002 at 11:58:21AM -0500, James S wrote:
> yes it does & can play mp3s, but surely the 'beep' is independant of the
> sound driver - the 486 has no sound card, for example.

Don't confuse the random PC architecture with the way that real systems work.

-- 
Revolutions do not require corporate support.



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Hi there!

This doesn't work on my 715/100 either,  even though mpg321 works...
(kernel 2.4.18-pa10)

Ruediger

Grant Grundler wrote:

>
>Do you know if the audio driver is working for you in general?
>ie mpg321 works?
>
>grant
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>





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> Don't confuse the random PC architecture with the way that real systems
work.
>
fair point, but i was assuming that the 712/60's had a 'system beep' same as
the pcs that was independant of the sound system.

James S







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Subject: [parisc-linux] How do I find out what my video card is?
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I would like to find out the capabilities of the video
card that my hp c180xp came with.  How do I go about
doing this?

Thanks,
Timothy Robb

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the \b should elicit a beep from the system speaker. I know the 712's have 
one (at least my 712/80i does.) Yes, it is a seperate system from the 
sound card. Which leads into another issue that I meant to write here 
about...

I just got X working on my 712/80i the other day. So, I'd now like to get 
mpg321 working. I start esd from the command line and it makes several 
tones... but they come from the PC speaker, not through the sound card 
output. When I try to play something with mpg321, I tell it to use esd 
with the following command line:

mpg321 -o esd filename.mp3

the output consists of :
Illegal Instruction

anyone know why this is? should I be using esd, which seems to only use 
the internal sound instead of the real sound card hardware?

thanks,

-phil

On Thu, 4 Apr 2002, James S wrote:

> > Don't confuse the random PC architecture with the way that real systems
> work.
> >
> fair point, but i was assuming that the 712/60's had a 'system beep' same as
> the pcs that was independant of the sound system.
> 
> James S
> 
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 
===============================================================================

Phil Anderson
UNIX Systems Administrator
andersop@neverland.ncssm.edu
The_13th_Ewok@hotmail.com

"Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson




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> I just got X working on my 712/80i the other day. So, I'd now like to get
> mpg321 working. I start esd from the command line and it makes several
> tones... but they come from the PC speaker, not through the sound card
> output.

i know on my 712/60 the sound comes out the internal speaker when i play
mp3's, but it also comes out of the earphone socket - so i'm thinking the
system speaker is wired to the sound card as well, but i might be wrong

as far as esd goes, i think you can get mp3's playing without any 'sound
daemon' by just using the mp3 software....

yep, just checked, you can

James S








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incidentally, i installed the .deb package 'beep' & that doesnt generate any
sound either...


James S







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I think the problem lies in my mpg321, because no matter what I do with 
it, use esd or not, whatever options I choose - I always get the
Illegal Instruction
error. this is the mpg321 .deb I installed of  my 0.9.3 CD; could the 
mpg321 be corrupt or is something else wrong? 

-phil

On Thu, 4 Apr 2002, James S wrote:

> incidentally, i installed the .deb package 'beep' & that doesnt generate any
> sound either...
> 
> 
> James S
> 
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 
===============================================================================

Phil Anderson
UNIX Systems Administrator
andersop@neverland.ncssm.edu
The_13th_Ewok@hotmail.com

"Go CRAZY? Don't mind if I do! Woowoowoowoo!" -Homer Simpson




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>I think the problem lies in my mpg321, because no matter what I do with
>it, use esd or not, whatever options I choose - I always get the
>Illegal Instruction
>error. this is the mpg321 .deb I installed of  my 0.9.3 CD; could the
>mpg321 be corrupt or is something else wrong?


i think the kernel used on the 0.9.3 cd might be fairly old by now - you
tried updating it ?


James S






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James S wrote:
> yes it does & can play mp3s, but surely the 'beep' is independant of the
> sound driver - the 486 has no sound card, for example.

Apple //e could beep w/o a sound card too...we even had it talking.

My understanding the speaker is wired to harmony device.
Driver needs to tell harmony to make beep if that's what you
want coming out of the speaker.

My guess is bash "sound" isn't being directed to /dev/audio or
whatever device it needs to tell to make a beep.  I was asking
to verify the driver is in place and working.

grant



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Phil Anderson wrote:
> I think the problem lies in my mpg321, because no matter what I do with 
> it, use esd or not, whatever options I choose - I always get the
> Illegal Instruction
> error. this is the mpg321 .deb I installed of  my 0.9.3 CD; could the 
> mpg321 be corrupt or is something else wrong? 

I'm wondering if it's something else.

712/80i was one of the few systems that was sold w/o Floating Pointing
coprocessor (or FP was disabled) at a lower price point. I believe
parisc-linux kernel ignores the lies that PDC presents about the FP
not being present. But I'm wondering if something is really
disabled on the chip that causes FP to just not work.  I don't know
if our FP emulation will deal with a completely missing FP Unit.

If this really the case, I should be able find you a real 712/80
to play with. But you need to figure out what is causing the
illegal instruction first.

grant



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There's now a kdb_v21 branch in parisc-linux cvs:

cvs -d.... co -r kdb_v21 linux

Enjoy!
randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Hi,

I  was just wondering how you can produce 64bit executables for hppa.
'info gcc', 'man gcc' or 'gcc -v --help' doesn't mention 64bit
support at all.

IIRC on sparc systems, you can produce 64bit executables by specifying/
enabling the V9-Architecture and the 64bit support, i.e. just adding
the option '-mcpu=v9' and '-m64'. It seems to be similar on
many other architectures (submodels), too.

But it seems that for hppa 64bit is an entire different submodel,
or am I wrong ?

What do I have to do to

- build a 64bit capable gcc for hppa ?
- produce a 64bit executable ?
- create a 64bit kernel ? (I know it doesn't make sense on Cxxx
  machines, and 64bit has much more bugs than 32bit support ;)

And are there precompiled binaries available (debian/hppa executables) ?
I haven't seen an egcs64, gcc64 or hppa64-gcc in the debian pool ...

greetings max




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64 bit not supported in user space yet. It's only so you can use all of
the memory in a machine - i.e. multiple 32 bit user apps each using 2
GB. So, no reason to generate 64 bit apps.

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216


> -----Original Message-----
> From: M. Grabert [mailto:xam@cs.ucc.ie]=20
> Sent: Friday, April 05, 2002 7:32 AM
> To: parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] 64bit newbie question
>=20
>=20
> Hi,
>=20
> I  was just wondering how you can produce 64bit executables for hppa.
> 'info gcc', 'man gcc' or 'gcc -v --help' doesn't mention 64bit
> support at all.
>=20
> IIRC on sparc systems, you can produce 64bit executables by=20
> specifying/
> enabling the V9-Architecture and the 64bit support, i.e. just adding
> the option '-mcpu=3Dv9' and '-m64'. It seems to be similar on
> many other architectures (submodels), too.
>=20
> But it seems that for hppa 64bit is an entire different submodel,
> or am I wrong ?
>=20
> What do I have to do to
>=20
> - build a 64bit capable gcc for hppa ?
> - produce a 64bit executable ?
> - create a 64bit kernel ? (I know it doesn't make sense on Cxxx
>   machines, and 64bit has much more bugs than 32bit support ;)
>=20
> And are there precompiled binaries available (debian/hppa=20
> executables) ?
> I haven't seen an egcs64, gcc64 or hppa64-gcc in the debian pool ...
>=20
> greetings max
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>=20



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On Fri, Apr 05, 2002 at 02:32:13PM +0100, ext M. Grabert wrote:
> Hi,
> 
> I  was just wondering how you can produce 64bit executables for hppa.
> 'info gcc', 'man gcc' or 'gcc -v --help' doesn't mention 64bit
> support at all.
> 
> IIRC on sparc systems, you can produce 64bit executables by specifying/
> enabling the V9-Architecture and the 64bit support, i.e. just adding
> the option '-mcpu=v9' and '-m64'. It seems to be similar on
> many other architectures (submodels), too.
> 
> But it seems that for hppa 64bit is an entire different submodel,
> or am I wrong ?
> 
> What do I have to do to
> 
> - build a 64bit capable gcc for hppa ?
> - produce a 64bit executable ?
> - create a 64bit kernel ? (I know it doesn't make sense on Cxxx
>   machines, and 64bit has much more bugs than 32bit support ;)
> 
> And are there precompiled binaries available (debian/hppa executables) ?
> I haven't seen an egcs64, gcc64 or hppa64-gcc in the debian pool ...

Have you tried gcc-3.0 ??

IIRC is the one that introduced 64 bit compilation under hppa.

J.




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On Fri, 5 Apr 2002, Jesus Climent wrote:

> > What do I have to do to
> >
> > - build a 64bit capable gcc for hppa ?
> > - produce a 64bit executable ?
> > - create a 64bit kernel ? (I know it doesn't make sense on Cxxx
> >   machines, and 64bit has much more bugs than 32bit support ;)
> >
> > And are there precompiled binaries available (debian/hppa executables) ?
> > I haven't seen an egcs64, gcc64 or hppa64-gcc in the debian pool ...
>
> Have you tried gcc-3.0 ??
>
> IIRC is the one that introduced 64 bit compilation under hppa.

Lol :)

I think there is no other gcc for hppa than gcc-3.x yet ;)

I wondered what options I have to pass to gcc to created 64bit
executables (e.g. a 64bit kernel), and/or whether the 'normal' gcc-3.0
you get with apt-get is just capable of dealing with 32bit executables.

greetings & have a nice weekend, max





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On Fri, Apr 05, 2002 at 02:59:34PM +0100, M. Grabert wrote:
> I wondered what options I have to pass to gcc to created 64bit
> executables (e.g. a 64bit kernel), and/or whether the 'normal' gcc-3.0
> you get with apt-get is just capable of dealing with 32bit executables.

nobody's made gcc support both 32 and 64 bit targets yet on hppa.  for now,
install the obvious debs from http://ftp.parisc-linux.org/unofficial-debs/

-- 
Revolutions do not require corporate support.



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> I wondered what options I have to pass to gcc to created 64bit
> executables (e.g. a 64bit kernel), and/or whether the 'normal' gcc-3.0
> you get with apt-get is just capable of dealing with 32bit executables.

the 64-bit compiler we use to build kernels is not yet in debian, it is
available on ftp://ftp.parisc-linux.org/unofficial-debs/

i'm working on getting something into the Debian archive...

randolph
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 > 712/80i was one of the few systems that was sold w/o Floating Pointing
 > coprocessor (or FP was disabled) at a lower price point. I believe
 > parisc-linux kernel ignores the lies that PDC presents about the FP
 > not being present. But I'm wondering if something is really
 > disabled on the chip that causes FP to just not work.  I don't know
 > if our FP emulation will deal with a completely missing FP Unit.


My 80i plays mp3s (via mpg123) beutifly.. without FPU emulation..
(but i had lots of problems getting it to work in debian, works a treat under lfs ;)
I just always assumed debian compiled it weirdly... hrm...
Or it could be that when i compiled mpg123 i didn't put any FPU code in (needed a bit of hacking to compile)
I'll investigate.. see what happend...


BTW... Everybodys aware that the internal speaker is connected to the LASI Harmony chip, yeah?
(Theres no way to generate a beep in hardware, you'd need to make a driver that generated a PCM beep and sent it to the hardware)
At least AFAIK

--jbit



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> BTW... Everybodys aware that the internal speaker is connected to the LASI
Harmony chip, yeah?
> (Theres no way to generate a beep in hardware, you'd need to make a driver
that generated a PCM beep and sent it to the hardware)
> At least AFAIK
>
that explains the missing beep, then

wonder if it would make sense to put the necessary code for a beep into the
kernel.....


James S






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> 712/80i was one of the few systems that was sold w/o Floating Pointing
> coprocessor (or FP was disabled) at a lower price point. I believe
> parisc-linux kernel ignores the lies that PDC presents about the FP
> not being present. But I'm wondering if something is really
> disabled on the chip that causes FP to just not work.  I don't know
> if our FP emulation will deal with a completely missing FP Unit.

The 80i FPU is disabled in hardware.  I once saw the restoration
procedure and gagged.

palinux has nearly all, but not 100% of the FPU emulation code.  I
don't recall why I omitted a couple of things -- probably due to
structural issues fitting them into our kernel.  We had also made
a decision not to support FPU-less boxes.

> If this really the case, I should be able find you a real 712/80
> to play with. But you need to figure out what is causing the
> illegal instruction first.

If Grant can't find one, I'm pretty sure we have a 712/80 CPU board
around somewhere.

	-P



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Did anybody already built a gnat binary for parisc?

	Matthias



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I don't know about your boxes, but my J5k had the most obnoxious beep I 
have ever experienced (short of a raid controller).  I was pleasently 
surprised when this box didn't beep.  So, if you do add something to the 
kernel for beeping, make sure it can be easily disabled (eg procfs).

-- 
"His eyes were cold.  As cold as the bitter winter snow that was falling
outside.  Yes, cold and therefore difficult to chew..."




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On Fri, 5 Apr 2002, Matthew Wilcox wrote:

> nobody's made gcc support both 32 and 64 bit targets yet on hppa.  for now,
> install the obvious debs from http://ftp.parisc-linux.org/unofficial-debs/

Aahh, i.c.

I saw them before, but they seemed to be a little bit outdated
(29 Jun 2001).

What are the issues why no 64bit userland is supported yet ?
(Besides too many bugs in the compiler ?) Is this difficult to archive?


greetings max




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On Fri, Apr 05, 2002 at 06:11:28PM +0100, M. Grabert wrote:
> What are the issues why no 64bit userland is supported yet ?
> (Besides too many bugs in the compiler ?) Is this difficult to archive?

Nobody's bothered to do the work yet.  are you vounteering?

-- 
Revolutions do not require corporate support.



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> What are the issues why no 64bit userland is supported yet ?
> (Besides too many bugs in the compiler ?) Is this difficult to archive?

Too many bugs in the compiler?  The 64-bit testsuite results under
hpux aren't that bad:-)  I posted new results yesterday:
<http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00160.html>.  Still
lots of work to do but I don't think there are any show stoppers.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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"John David Anglin" writes...

> > What are the issues why no 64bit userland is supported yet ?
> > (Besides too many bugs in the compiler ?) Is this difficult to archive?
> 
> Too many bugs in the compiler?  The 64-bit testsuite results under
> hpux aren't that bad:-)  I posted new results yesterday:
> <http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00160.html>.  Still
> lots of work to do but I don't think there are any show stoppers.

It's worth pointing out that the majority of the work probably lies in the
porting of glibc and not the compiler. Although I'm sure there a still some
fun bugs left in the compiler too :)

Anybody considering the port should probably express their intent to do so
on this mailing list so they can get as much help/documentation/support as
possible.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation




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On Fri, 5 Apr 2002, Matthew Wilcox wrote:

> > What are the issues why no 64bit userland is supported yet ?
> > (Besides too many bugs in the compiler ?) Is this difficult to archive?
>
> Nobody's bothered to do the work yet.  are you vounteering?

If I would have

- any knowledge about pa-risc (well, I could learn that)
- any knowledge about to crawl through the gcc jungle
- I would have a real 64bit machine and the need to run 64bit apps
  or at least if I'd have enough the ambition to do it (well,
  there's a little ambition, but not enough yet :)
- any have enough time for that (I'm currently doing my PhD thesis)
          (^^^^^^^^^^^ most important point)

well, then yes.



But unfortunately in the next 4 years I'm quite busy with what
I'm doing right know (even wasting my spare time with my work).

I'd love to learn pa-risc and how gcc works, but this will probably
be a task that I will do whenever I have spare spare time.
I think after the next 4 years I'll have gained enough experience
to do this task, but not in the near future :(


The reason why I'm subscribed to this list is basically:
I own 2 HP workstations, and I want to learn a little bit about
them and - even more interesting - I want to contribute a little
help by testing software and sending bug reports.

Last but not least some kudos:
I have to say that this mailing list is the most competent,
tolerant, indulgent, helpful and friendly maining lists of all
the os mailing lists I was subscribed to so far (xMach, Linux/SPARC,
Linux/x86, FreeBSD, OpenBSD, Hurd, L4) or browsed though (even more).

It's really amazing how much progress Linux/PARISC has made in the
last few years. In comparison to other architectures (e.g. MIPS,
m68k, SPARC and VAX etc.) it seems that here are people working
day and night to support parisc-linux (or the people of some other
architectures don't put too much effort in their work ;)!

Keep on the good work!!!

greeting max




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I posted a patch to the gcc trunk a couple of days ago that provides
the first working dwarf2 exception and unwind support under hppa-linux.
The g++ testresults look pretty good but it hasn't had any real world
testing.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Greetings.

I am new to the HP UNIX world but not a total newbie to the UNIX world
in general.  I have been using Linux since RedHat 6.0 first came out,
and I have used FreeBSD, NeXTSTEP and Solaris a bit as well.  I belong
to Orange County Linux Users Group (www.oclug.org) in California.

This is a hardware problem not a PA-RISC Linux problem per se, but I
can't put Linux on it until its fixed, so I hope this is acceptable on
the list.  

I just recently acquired an HP 715/75, with monitor, kb, mouse.
Our school received several different HP systems as a donation from a
local company some time ago, but we recently have gotten Sun Ultra-10s
so the HPs are now collecting dust mostly.  To make a long story short
the prof in charge of this lab gave me one.

After much searching, and coming up blank, someone on my local LUG
mailing list finally found the documentation for the 715, and if I am
reading the LED troubleshooting tables correctly, it is having this
problem:

Internal inconsistency: IODC ENTRY_INIT.

The documentation doesn't mention exactly what this means or what to do
about it.

The power LED is green, and LEDs 1,2 and 6 are solid orange.  I think
LED 4 (heartbeat) is blinking like it's supposed to, but not sure.

The monitor is blank when the system powers up.  At first I thought it
could be a problem with the monitor or video cable but we tested the
cable on another HP in the school lab and it was fine.  The monitor
might still be a problem, but according to the LEDs it might be
something else.

Any help is appreciated.  Apologies if this is not directly on-topic.

Thanks!




-- 
73 de K6LNX

Matt M.
LinuxKnight




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In reference to a message from John David Anglin, dated Mar 11:
> In looking at the the failure of the g++.brendan/new3.C, I have observed
> what appears to be a problem with the dynamic loader.  The function
> _Znwj appears as a global symbol in the main program and in
> libstdc++.so.4.0.0.  The version in the main program should be selected
> in preference to the one in the shared library.  However, the dynamic
> loader actually uses the version in the shared library causing the
> test to fail.  The program works ok with static linkage.
> 
> It looks like the symbol search procedure used in glibc needs some work.

ok, recently events have prompted me to look at this again...

isn't the test itself broken?

it does this:

void *operator new(size_t sz) .....

int main() 
{
  A *bb = new A[10]; 
  ...
}

you define "operator new", but are calling operator new[], so it
defaults to the one in libstdc++...

if you change the definition of "operator new" to "operator new[]" then
the test will pass.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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From: H_Aue@t-online.de (Hinrich Aue)
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Subject: [parisc-linux] 715/80 for free
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perhaps somebody imagines my offer:
a free 715/80 ?
I'm a bit stressed in university, but now I found some time.
One of my machines broke. So, sorry I have only 1 remaining and I need it as 
a server.

Hinrich



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I installed Debian unstable a bit ago. (pa-linux 0.92)
Now I read on /. that Woody becomes stable.
I think I use SID (unstable everywhere in sources.list)
Is it good to use the stable release(Woody) when released?
What do I have to do? Just change sources.list entries from unstable to 
stable?



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In reference to a message from Hinrich Aue, dated Apr 06:
> I installed Debian unstable a bit ago. (pa-linux 0.92)
> Now I read on /. that Woody becomes stable.
> I think I use SID (unstable everywhere in sources.list)
> Is it good to use the stable release(Woody) when released?
> What do I have to do? Just change sources.list entries from unstable to 
> stable?

For reference, this type of question should be sent to
debian-hppa@lists.debian.org instead.

You can either change the references of 'unstable' to 'stable' when
woody gets released, or you can change the reference of 'unstable' to
'woody', then you'll always track woody.

Note 'unstable' doesn't become woody, it is 'testing' that is becoming
'woody'.

randolph
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Hello,

I have a K220. I'd like to install the latest release of PA-RISC Linux
on it but I need to first of all be able to console into it.

I am trying to use the console cable I have used with Sun boxes on this
machine, however I just cannot get it to work? My terminal emulation is
done via HyperTerminal on a laptopb via. COM1

I do not get any output information on my console connection.

What do I need to do this?

What seeting do I need on my terminal emulator? Or is there some jumper
I have to set to allow this to work? Currently I use 9600 8N1, I also
tried 7E1 but still no luck...

Please help...

Thanks...

Ahbaid.




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Hi Dave,

What could we do to help? Do we have to install snapshot gcc? Which programs
would be tested?

Joel

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Subject: [parisc-linux] Linux palinux 2.4.19-pre5-pa0 #2 Mon Apr 8 15:16:06 CEST 2002 parisc unknown
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Hi all,

It seems to works just still have a problem with modules:

mkdir -p pcmcia; \
find kernel -path '*/pcmcia/*' -name '*.o' | xargs -i -r ln -sf ../{} pcmcia
if [ -r System.map ]; then /sbin/depmod -ae -F System.map  2.4.19-pre5-pa0; fi
depmod: *** Unresolved symbols in
/lib/modules/2.4.19-pre5-pa0/kernel/drivers/scsi/scsi_debug.o
depmod: 	vmalloc
make: *** [_modinst_post] Error 1
Mon Apr  8 16:04:06 CEST 2002

Any idea?

Joel

PS: The full compressed patch is about 4Mb so I could not join to this mail :(
if any ineterest let me know where can I upload.

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Subject: Re: [parisc-linux] K220 - Setup via. Console
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On Sun, Apr 07, 2002 at 10:35:58PM -0700, Ahbaid Gaffoor wrote:
> I have a K220. I'd like to install the latest release of PA-RISC Linux
> on it but I need to first of all be able to console into it.

You'll have trouble when it does come up -- we don't have proper console
support yet.

> I am trying to use the console cable I have used with Sun boxes on this
> machine, however I just cannot get it to work? My terminal emulation is
> done via HyperTerminal on a laptopb via. COM1

I think Sun have their own strange pinout whereas HP use a standard
null-modem cable.

> What seeting do I need on my terminal emulator? Or is there some jumper
> I have to set to allow this to work? Currently I use 9600 8N1, I also
> tried 7E1 but still no luck...

9600 8N1, no hardware or software flow control is the right setting to
get firmware to talk to you.

By the way, we don't have a K220 in the hwdb yet; the closest we have is
a K210.  Please go to http://hwdb.parisc-linux.org/add.php3?type=machine
and follow the instructions.

We hope to have support for the console on the K-class later this year...

-- 
Revolutions do not require corporate support.



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On Mon, Apr 08, 2002 at 04:51:46PM +0200, joel.soete@freebel.net wrote:
> Hi all,
> 
> It seems to works just still have a problem with modules:
> 
> mkdir -p pcmcia; \
> find kernel -path '*/pcmcia/*' -name '*.o' | xargs -i -r ln -sf ../{} pcmcia
> if [ -r System.map ]; then /sbin/depmod -ae -F System.map  2.4.19-pre5-pa0; fi
> depmod: *** Unresolved symbols in
> /lib/modules/2.4.19-pre5-pa0/kernel/drivers/scsi/scsi_debug.o
> depmod: 	vmalloc
> make: *** [_modinst_post] Error 1
> Mon Apr  8 16:04:06 CEST 2002

You got a warning before this, something like `implicit declaration of
function vmalloc'.  ie you forgot to #include <linux/vmalloc.h>

-- 
Revolutions do not require corporate support.



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On Mon, 2002-04-08 15:56:44 +0100, Matthew Wilcox <willy@debian.org>
wrote in message <20020408155644.F27547@parcelfarce.linux.theplanet.co.uk>:
> On Sun, Apr 07, 2002 at 10:35:58PM -0700, Ahbaid Gaffoor wrote:
> > I am trying to use the console cable I have used with Sun boxes on this
> > machine, however I just cannot get it to work? My terminal emulation is
> > done via HyperTerminal on a laptopb via. COM1
>=20
> I think Sun have their own strange pinout whereas HP use a standard
> null-modem cable.

Older Suns use a jack that's identical to what Macs use; newer Systems
do have a female (!) DM25 jack which contains two serial ports: one
on the "standard" pins (you only need a genderchanger and a DB25 -> DB9
converter), the other port is on the unused pins (you can buy
split cables for 10 US-$ on ebay).

The round jack on those Macs/SGIs/Suns do have three important pins:
If you look at it, it looks like this:



        1     2     3

=20

   4            5        6


   =20
         7        8


(Yes, it's assymmetric). 4 and 6 are RxD and TxD, 5 is Ground. Happy

MfG, JBG
PS: I don't know which one of pin 4 and 6 is RxD and which one is TxD.
You maybe have to try and error...

--=20
Jan-Benedict Glaw   .   jbglaw@lug-owl.de   .   +49-172-7608481
	 -- New APT-Proxy written in shell script --
	   http://lug-owl.de/~jbglaw/software/ap2/

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Joel,

Thanks for the offer to help.  The gcc 3.1 release criteria are here:
<http://gcc.gnu.org/gcc-3.1/criteria.html>.  There should be info on
how to build these.  There has been discussion of this on the gcc
list.

It would be useful to collect testresults for the listed applications.
It would be really great to compare the status of debian 3.0.4, gcc
cvs 3.1 (prerelease), and gcc cvs 3.2 (experimental).

I suspect that there will be problems with many of the tests.  There
is a integer*1 g77 bug that may affect lapack.  Qt may not build
because of an issue with long calls.  I think that I now understand
how to fix this but it may just go into 3.2.  3.2 has working dwarf2
exceptions and 3.1 doesn't.

> What could we do to help? Do we have to install snapshot gcc? Which programs
> would be tested?

You would need to install the cvs binutils and cvs gcc versions in some
convenient location for the testing.  I use ~/opt/gnu.  Instructions
on cvs access to gcc is on the gcc site <http://gcc.gnu.org/> and
similarly for binutils.  You probably need to define 

LD_RUN_PATH=/home/dave/opt/gnu/lib
LD_LIBRARY_PATH=/home/dave/opt/gnu/lib
LIBRARY_PATH=/home/dave/opt/gnu/lib

in your environment.

Even just building gcc can provide useful feedback.  I know it is very
easy to make mistakes due to the complexity of the package.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: Re: [parisc-linux] Linux palinux 2.4.19-pre5-pa0 #2 Mon Apr 8 15:16:06 CEST 2002 parisc unknown
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Thanks.

Having a look in more details, I just see that there is only one place where
vmalloc is used in place of kmalloc and it is deliberately used. On the contrary
IIRC this was a cause of problems in early evms. Also as I do not actually need
this module (right now), I prefered to remove this from my config for the moment.

Joel

Quoting Matthew Wilcox <willy@debian.org>:

> On Mon, Apr 08, 2002 at 04:51:46PM +0200, joel.soete@freebel.net wrote:
> > Hi all,
> > 
> > It seems to works just still have a problem with modules:
> > 
> > mkdir -p pcmcia; \
> > find kernel -path '*/pcmcia/*' -name '*.o' | xargs -i -r ln -sf ../{}
> pcmcia
> > if [ -r System.map ]; then /sbin/depmod -ae -F System.map 
> 2.4.19-pre5-pa0; fi
> > depmod: *** Unresolved symbols in
> > /lib/modules/2.4.19-pre5-pa0/kernel/drivers/scsi/scsi_debug.o
> > depmod: 	vmalloc
> > make: *** [_modinst_post] Error 1
> > Mon Apr  8 16:04:06 CEST 2002
> 
> You got a warning before this, something like `implicit declaration of
> function vmalloc'.  ie you forgot to #include <linux/vmalloc.h>
> 
> -- 
> Revolutions do not require corporate support.
> 
> 


-------------------------------------------------
This mail sent through Tiscali Webmail (http://webmail.tiscali.be)



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Subject: Re: [parisc-linux] K220 - Setup via. Console
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Hello, there are some points to discuss and solve.

(1) cabeling:
First of all check RS232 pinout. My E55 HP server has some
non-standards,
not only that the RX/TX pins are swapped, the handshake lines are 
completely non-standard mapped, and a simple Null-Modem cable does the
wrong ! (BTW: As HP has the wrong direction, a 1:1 cable is needed,
but again, the handshake lines are non-standard).

So check the RS232 port on the HP box. (On my 720 and 712 I never ahd
a problem, it was a standard RS232, PC-like).

(2) SUN
The SUN always has PC-like 25-pin connectors, but a gender-changer is
needed, as SUN always has the PC-pin layout, but a female instead of
male connector.

Even the 8-way serial ports of SUN (old S-bus one, and new PCI one), 
always use the same female 25-pin connectors with PC-pinout.

Special connectors as mention in the other answers is only used at
Sun ICP/IPX: Mini-DIN 8pin
Sun SparcStation 20 (and perhaps 10): one 25-pin female connector
	with two ports (you need a Y-cable).

(3) Problems between PCs under BIOS/Microsoft control.
As Microsoft (and PC BIOSes) is (are) a proprietary non-standard system, 
it also makes problems concerning the RS232 ports. Although hardware
handshake is turned off, the CTS pin (pin 5 on 25pin PC connector)
must be asserted. You need at mimimum a bridging cable between pin
4 and 5 (pin 7 and 8 on a DSUB-9pin).

The problem does not exist on SUN and on Linux PCs. The bridge is only
needed on the PC (hyperTerminal) side.

(4) XON/XOFF is often used on serial console, and as far as I know,
default !
So XON/XOFF should be enabnled, but again, this is my opinion.

(5) Serial Console:
Concerning the mail of the K220 console support.
If the serial console on the K220 is not supported, you can use the new
PDC Console Driver, you can find under non-standard serial drivers. It 
supports the PDC console driver of the firmware to use under Linux 
as driver `/dev/ttyB0'. In the help of this configuration option you can
find the steps, how to use this. I developed this driver for my E55, as
this machine is not supported, too.


So I hope ypu will find some hints and solve the problem.

With friendly regards
Christoph P.


Ahbaid Gaffoor wrote:
> 
> Hello,
> 
> I have a K220. I'd like to install the latest release of PA-RISC Linux
> on it but I need to first of all be able to console into it.
> 
> I am trying to use the console cable I have used with Sun boxes on this
> machine, however I just cannot get it to work? My terminal emulation is
> done via HyperTerminal on a laptopb via. COM1
> 
> I do not get any output information on my console connection.
> 
> What do I need to do this?
> 
> What seeting do I need on my terminal emulator? Or is there some jumper
> I have to set to allow this to work? Currently I use 9600 8N1, I also
> tried 7E1 but still no luck...
> 
> Please help...
> 
> Thanks...
> 
> Ahbaid.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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When building 64-bit kernels, the linker puts dynamic sections into the
resulting vmlinux file. This is not harmful per se, but is nonetheless
wrong (and confuses some of the modutils tools). Alan Modra explains 
the situation and how to fix it below. Anyone feel like give this a 
shot?

randolph

----- Forwarded message from Alan Modra <amodra@bigpond.net.au> -----

Date: Mon, 8 Apr 2002 17:18:29 +0930
From: Alan Modra <amodra@bigpond.net.au>
To: Randolph Chung <tausq@debian.org>
Cc: dave@hiauly1.hia.nrc.ca
Subject: Re: unwind sections not sorted?

> legolas[19:30] t% readelf -d ./vmlinux-pa7
> 
> Dynamic segment at offset 0x25ee30 contains 11 entries:
>   Tag        Type                         Name/Value
>  0x0000000000000004 (HASH)               0x102ee4e0
>  0x0000000000000005 (STRTAB)             0x102ee4d8
>  0x0000000000000006 (SYMTAB)             0x102ee4d8
>  0x000000000000000a (STRSZ)              1 (bytes)
>  0x000000000000000b (SYMENT)             24 (bytes)
>  0x0000000060000001 (<unknown>: 60000001) 0 0x0000000000000003 (PLTGOT)             0x10383470
>  0x0000000000000015 (DEBUG)              0x0
>  0x0000000060000002 (<unknown>: 60000002) 0x0 0x0000000060000000 (<unknown>: 60000000) 0x102f6000 0x0000000000000000 (NULL)               0x0

Hrrm.  OK, another bug in elf64-hppa.c.  elf64_hppa_check_relocs creates
_all_ the dynamic sections whether needed or not.  It certainly shouldn't
be calling bfd_elf64_link_create_dynamic_sections, but rather call
elf64_hppa_create_dynamic_sections to create the sections the backend
needs.  Then of course, elf64_hppa_create_dynamic_sections needs to be
modified to not duplicate sections.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre

----- End forwarded message -----



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Hi,

I just played a little with my C240 (serial console and X11 forwarding),
and decided to install a 64bit kernel just for fun (and to help you
testing them). I know that 64bit doesn't make sense at all (at least
not in the near future, since there is no 64bit userland support and I guess
not many applications would profit from it even if there was one).
Needless to say that I'm running a 32bit kernel again ;)


on all 2.4.x kernels tested so far
==================================
- the 32bit kernel shipped with the 0.9.3 iso (IIRC 2.4.9)
- 2.4.18-pa4-32bit
- 2.4.18-pa5-32bit
- 2.4.18-pa14-32bit
- 2.4.18-pa14-64bit

I've seen following issues:

- leds don't seem to work (i.e. no heartbeat or other leds on or blinking - or
  is my hp really so idle ?)
  This is just with the latest 2.4.18-pa14 kernels (2.4.18-pa5-32bit worked,
  but IIRC not perfectly)

- 100Mbit is not supported properly (full-duplex support is always
  recognized, but 100Mbit just occationally).
  Of course it's a full 10/100Mbit SWITCH (no hub), and I checked the cables
  Moreover I just have 100Mbit network devices plugged into the switch.

- the 'poweroff' command doesn't work, it just shutdowns the machine, but does
  no real poweroff. (AFAIK 'poweroff' is a synonym for 'shutdown -p now', isn't
  it ? this doesn't work either).
  The powerkey works as expected (including powering off the workstation)
  with 32bit kernels.



for kernel 2.4.18-pa14-64bit (32bit PDC):
========================================
- if fs type "auto" is set for a ext3 partition, the kernel detects the /, but
  the mount command (in the bootscript) fails to detect the fstype. Setting the
  fstype entry in /etc/fstab to "ext3" or "ext2" fixes the problem.
  Since 'mount -a' fails to detect the fs type, it won't remount /
  in read-write mode, and thus the system won't boot correctly.

  But "auto" in /etc/fstab works with the corresponding 32bit kernel

- crashme is effective (example settings, after a few minutes kernel crashed,
  even MagicSysRq didn't work. It didn't seem to 'work' on 2.4.18-pa5-32bit,
  I didn't try with the 2.4.18-pa14-32bit kernel)

- once I got a kernel oops at interrupt_stack() at boot up (attached to mail),
  but eveything seemed to work. I didn't get any more kernel oops.

- shutdown&poweroff when hitting powerkey does not work (it just switches off
  the workstation immediately; it works properly on the corresponding 32bit
  kernel and 2.4.18-pa5-32bit)

- if I compile in support for STIcon/STIfb, it doesn't switch the output
  to the console (after the 'branching to kernel entry point' message).
  At least I waited for quite some time, and I didn't seem to go on.
  I didn't compile in support for STIcon/STIfb for the 32bit kernel,
  therefore I can't tell whether there is the same problem or not.
  STIcon/STIfb works with 2.4.18-pa5-32bit. Well, my FX/2 card isn't supported
  for fb, but at least the kernel doesn't hang with that kernel.



some things that work on both 32/64bit kernel (2.4.8-pa14), probably not worth
to mention:

- tmpfs, ext3, ext2, iso9660
- harmony audio
- serial console, MagicSysRq over serial console
- of course scsi, ethernet and running 32bit applications
- ventilators ;)


N.B. I didn't try the latest modutils, in which the pa8000 cpu issue is fixed.
therefore I didn't compile any modules
BTW, i use the tulip driver for ethernet. Is it also possible (and safe)
to use the generic DEC driver ?

greetings max

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Hi all,

i finally downloaded the palinux-0.9.4 ISO and successfully installed
Debian on my 715/64.  Installation was surprisingly smooth -- albeit
without X so far -- and the system seems to run just fine dualbooting
with the NeXTSTEP-3.3 i installed last sunday. :-)

Because of NeXTSTEP i've once gotten rid of my HIL keyboard and mouse,
replacing both with standard PS/2 variants.  Unfortunately, at the
console the PS/2 keyboard (with German layout) chokes on pressing the
key containing the characters '>', '<' and '|' (on a german keyboard
the key between Shift and Y), only telling me:

     keyboard: unrecognized scancode (7f) ignored

I have to admit that i didn't check any FAQ.  So please simply ignore
my question if it can be solved with some scrutinizing RTFM. ;-)

Anyway, Debian runs and i'm really happy about it! :-)

                                    Thanks, P. *8^)
-- 
     ------------ Paul Seelig <pseelig@uni-mainz.de> --------------
   African Music Archive - Institute for Ethnology and Africa Studies
   Johannes Gutenberg-University   -  Forum 6  -  55099 Mainz/Germany
     ----------------- http://ntama.uni-mainz.de ------------------



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Xref: news.gmane.org gmane.linux.ports.parisc:14553

Hi Max,

On Tuesday 09 April 2002 19:15, M. Grabert wrote:
>
> on all 2.4.x kernels tested so far
> ==================================
> - the 32bit kernel shipped with the 0.9.3 iso (IIRC 2.4.9)
> - 2.4.18-pa4-32bit
> - 2.4.18-pa5-32bit
> - 2.4.18-pa14-32bit
> - 2.4.18-pa14-64bit
>
> I've seen following issues:
>
> - leds don't seem to work (i.e. no heartbeat or other leds on or blinking -
> or is my hp really so idle ?)
>   This is just with the latest 2.4.18-pa14 kernels (2.4.18-pa5-32bit
> worked, but IIRC not perfectly)

Could you post me some of your bootlogs ?

> - 100Mbit is not supported properly (full-duplex support is always
>   recognized, but 100Mbit just occationally).
>   Of course it's a full 10/100Mbit SWITCH (no hub), and I checked the
> cables Moreover I just have 100Mbit network devices plugged into the
> switch.

I never had problems with tulip and 100MBit here (on c3k).

> - the 'poweroff' command doesn't work, it just shutdowns the machine, but
> does no real poweroff. (AFAIK 'poweroff' is a synonym for 'shutdown -p
> now', isn't it ? this doesn't work either).
>   The powerkey works as expected (including powering off the workstation)
>   with 32bit kernels.

I've looked again at that problem during my latest patches (2.4.18-pa15).
As far as it seems to me we can't poweroff the system directly via software only.
The only possible thing we can do, is to catch all powerbutton presses from the
user and allow or disallow the controlled shutdown of the system. So the current
implementation is, that a) if you press the powerbutton we detect it and initiate
a clean shutdown. The PDC ROM will then power off the system automatically for 
us at the end of the shutdown procedure.
And: b) If you only tell Linux to "shutdown -n" (without having pressed the button)
we initiate the shutdown procedure, stop to catch any powerbutton presses and 
thus enable PDC to power off the system as soon as you press the button later on. 
But in this case you will still need to press the button to really power off the 
machine.  We just only allow the PDC to directly power it off.

So currently I don't see any solution here. You will _always_ have to press the power
button at least once: Directly while the kernel runs, or after you have started "shutdown -n".
Of course I may be wrong, in which case I would appreciate if someone from HP
would correct me here.


> for kernel 2.4.18-pa14-64bit (32bit PDC):
> ========================================
> - if fs type "auto" is set for a ext3 partition, the kernel detects the /,
> but the mount command (in the bootscript) fails to detect the fstype.
> Setting the fstype entry in /etc/fstab to "ext3" or "ext2" fixes the
> problem. Since 'mount -a' fails to detect the fs type, it won't remount /
> in read-write mode, and thus the system won't boot correctly.
>
>   But "auto" in /etc/fstab works with the corresponding 32bit kernel

This should be reported to the debian folks.

> - crashme is effective (example settings, after a few minutes kernel
> crashed, even MagicSysRq didn't work. It didn't seem to 'work' on
> 2.4.18-pa5-32bit, I didn't try with the 2.4.18-pa14-32bit kernel)
>
> - once I got a kernel oops at interrupt_stack() at boot up (attached to
> mail), but eveything seemed to work. I didn't get any more kernel oops.

We don't have chance to trace this bug without having your System.map.

> - shutdown&poweroff when hitting powerkey does not work (it just switches
> off the workstation immediately; it works properly on the corresponding
> 32bit kernel and 2.4.18-pa5-32bit)

Ryan committed some related changes here in 2.4.18-pa16. 
Could you retry with this kernel and check the results with CONFIG_PDC_NARROW 
enabled and disabled ?

> - if I compile in support for STIcon/STIfb, it doesn't switch the output
>   to the console (after the 'branching to kernel entry point' message).
>   At least I waited for quite some time, and I didn't seem to go on.
>   I didn't compile in support for STIcon/STIfb for the 32bit kernel,
>   therefore I can't tell whether there is the same problem or not.
>   STIcon/STIfb works with 2.4.18-pa5-32bit. Well, my FX/2 card isn't
> supported for fb, but at least the kernel doesn't hang with that kernel.

Are you using the latest palo ? Do you maybe have "console=ttyS00" as 
kernel boot parameter (check /proc/cmdline).

Helge



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From: Duraid Madina <Duraid@unsw.edu.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] shiny new rp2430 (A400) won't boot :-(
Date: Wed, 10 Apr 2002 14:53:32 +1000 (EST)
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Hi all,

	My nice new rp2430 (looks like an A400, but has a PA-8700 at 650MHz
inside, not sure if this is the only difference..) arrived this morning. I
hooked up an external (Sun) SCSI CDROM drive, an internal Fujitsu SCA-2
disk, and an RS232 console (well, FreeBSD 486 machine ;)

	Unfortunately, it doesn't boot! The kernel seems to load okay and
probe around a bit, but as soon as it gets into the midst of SCSI things,
the box either locks (I've only seen this happen once) or, generates a
(firmware, I presume) 'SYSTEM ALERT' message, which doesn't mean a whole lot
to me.

	For the record, as soon as I power on this system, the 'Attention'
and 'Fault' lights flash, but I have no idea if this is normal, or if not,
why they're flashing.

	A transcript of the boot session is attached. I hope someone can
help me out here!

	Many thanks in advance,

	Duraid

--%--multipart-mixed-boundary-1.4418.1018414412--%
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Content-Description: C program text
Content-Disposition: attachment; filename="bootlog.txt"

/* this is the bootlog of an HP rp2430 (HP part #A6889A) attempting to boot
linux (pa-linux 0.9.3) from an external CDROM drive. As you'll see, it fails 
right about where I'd expect SCSI devices to be probed. Hmmm.

This system is 'out of the box', apart from the external CDROM drive (an old
Sun one) and the internal Fujitsu SCA disk which were added.

If you can help or have any idea what's going on, please let me know,
I'm duraid@unsw.edu.au - thanks! */

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

dallas# cu -s 9600 -l /dev/cuaa0
Connected.

********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         FLASH     ON         ON
LED State: Unexpected Reboot. Running non-OS code. Non-critical error
detected.
Check Chassis and Console Logs for error messages.

platform                  config                     626F
processor                 test                       1142
processor                 test                       1100
processor                 test                       1100
processor                 test                       1100
processor                 test                       1100
processor                 test                       1100
PDH                       config                     322F
PDH                       test                       3149
PDH                       test                       3160
platform                  test                       616A
processor                 test                       1146
processor                 INIT                       1701
processor                 test                       1110
processor                 test                       1111
processor                 test                       1112
processor                 test                       1113
processor                 test                       1114
processor                 test                       1115
processor                 test                       1116
processor                 test                       1117
processor                 test                       1118
processor                 test                       1119
processor                 test                       111A
processor                 test                       111B
processor                 test                       111C
processor                 test                       111D
processor cache           test                       2111
processor cache           test                       2112
processor cache           test                       2113
processor cache           test                       2121
processor cache           test                       2122
processor cache           test                       2122
processor                 test                       1151
processor                 INIT                       1701
processor                 test                       1110
processor                 test                       1142
processor                 test                       1142
PDH                       test                       3158
PDH                       test                       3157
PDH                       test                       316E
PDH                       test                       316E
PDH                       test                       316E
memory                    config                     7210
memory                    INIT                       7702
memory                    INIT                       771D
memory                    test                       7150
memory                    config                     7213
memory                    config                     7213
memory                    config                     7214
memory                    config                     7213
memory                    config                     7213
memory                    config                     7213
memory                    config                     7213
memory                    config                     7213
memory                    config                     7213
memory                    config                     7213
memory                    config                     7213
memory                    config                     7215
memory                    config                     7216
memory                    config                     72A0
memory                    test                       71A1
memory                    test                       71A2
memory                    test                       71A4
memory                    test                       71A5
memory                    test                       71A6
memory                    test                       71A3
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A6
memory                    test                       71A6
memory                    config                     7217
memory                    config                     7218
memory                    config                     72A0
memory                    test                       71A1
memory                    test                       71A2
memory                    test                       71A4
memory                    test                       71A5
memory                    test                       71A6
memory                    test                       71A3
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A6
memory                    test                       71A6
memory                    config                     7210
I/O                       INIT                       8701
I/O                       test                       8118
I/O                       test                       8118
I/O                       INIT                       8701
I/O                       INIT                       8701
I/O                       INIT                       8701
I/O                       INIT                       8701
I/O                       INIT                       8701
memory                    config                     7240
memory                    INIT                       7702
memory                    config                     7241
memory                    config                     7243
memory                    config                     72A0
memory                    test                       71A1
memory                    test                       71A2
memory                    test                       71A4
memory                    test                       71A5
memory                    test                       71A6
memory                    test                       71A3
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A4
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A5
memory                    test                       71A6
memory                    test                       71A6
memory                    test                       71A6
memory                    INIT                       7745
memory                    config                     7240
I/O                       config                     8204
I/O                       INIT                       8701
I/O                       INIT                       8701
I/O                       INIT                       8701
I/O                       INIT                       8701
I/O                       test                       8119
I/O                       test                       8119
I/O                       test                       8119
I/O                       test                       8119
I/O                       test                       8119
I/O                       test                       8119
I/O                       config                     8204
processor                 test                       1120
processor                 test                       1133
processor                 test                       1134
processor                 test                       1135
processor                 test                       1136
processor                 test                       1137
processor                 test                       1138
processor                 test                       1152
processor                 test                       1139
processor                 test                       113A
processor                 test                       113B
processor                 test                       113C
processor                 test                       113D
processor                 test                       113E
processor                 INIT                       1701
processor                 test                       1120
processor                 test                       1142
processor                 test                       113B
platform                  test                       612A
I/O                       config                     8238

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************

Firmware Version  42.00

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2001, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst
Data
  ---------  --------   ---------------------  -----------------
------------
      0      650  MHz   Active                 Functional         750 KB 1.5
MB

  Central Bus Speed (in MHz)  :        120  
  Available Memory            :     131072  KB
  Good Memory Required        :      25820  KB

   Primary boot path:    0/0/1/1.15          
   Alternate boot path:  0/0/2/1.15          
   Console path:         0/0/4/1.643         
   Keyboard path:        0/0/4/1.0           


Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


---- Main Menu
---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > IN

---- Information Menu
--------------------------------------------------------

     Command                           Description
     -------                           -----------
     ALL                               Display all system information
     BootINfo                          Display boot-related information
     CAche                             Display cache information
     ChipRevisions                     Display revisions of major VLSI
     COprocessor                       Display coprocessor information
     FRU                               Display FRU information
     FwrVersion                        Display firmware version
     IO                                Display I/O interface information
     LanAddress                        Display Core LAN station address
     MEmory                            Display memory information
     PRocessor                         Display processor information
     WArnings                          Display selftest warning messages

     BOot [PRI|ALT|<path>]             Boot from specified path
     DIsplay                           Redisplay the current menu
     HElp [<command>]                  Display help for specified command
     RESET                             Restart the system
     MAin                              Return to Main Menu
----
Information Menu: Enter command > ALL

   Model: hp server rp2430 (model string 9000/800/A400-6X)

PROCESSOR INFORMATION

                       HVERSION  SVERSION              Processor
  Processor   Speed     Model    Model/Op  CVERSION      State
  ---------  --------  --------  --------  --------  -------------
      0      650  MHz   0x05e1    0x0491     2.  3   Active               

  Central Bus Speed (in MHz)  :        120  
  Software ID (dec)           :  859917860  
  Software ID (hex)           : 0x33414e24
  Software Capability         : 0x01f0


COPROCESSOR INFORMATION

                    Coprocessor   Coprocessor        Coprocessor
       Processor       Model        Revision            State
      -----------   -----------   -----------     -----------------
           0        0x00000013             1        Functional   

CACHE INFORMATION

       Processor    Instruction Cache Size    Data Cache Size
      -----------   -----------------------   ---------------
           0                750 KB                  1.5 MB

MEMORY INFORMATION


  MEMORY STATUS TABLE (MB) (Current Boot Status) 

Slot 01  128M  Active     
Slot 02   -               
Slot 03   -               
Slot 04   -               

Slot 05   -               
Slot 06   -               
Slot 07   -               
Slot 08   -               

Subtotal 128M             

   TOTAL =   128 MB
           ---------


                     Memory Installation Guidelines
                     ------------------------------

- DIMMs must be loaded in ascending slot order: 1, 2, 3, 4, 5, 6, 7, 8 

   Active, Installed Memory          :        128  MB of SDRAM
   Deallocated Pages                 :          0  Pages
                                       -----------
   Available Memory                  :        128  MB

   Good Memory Required by OS        :         26  MB

         Memory
   HVERSION  SVERSION
   -------- ----------
    0x09b0  0x00000900  

I/O MODULE INFORMATION

                        Path   Slot                          IODC  
Type                    (dec)  Number    HVERSION  SVERSION  Vers  
----                    -----  ------    --------  --------  ----  
System bus adapter      0                0x5820    0xb10     0x0   
Local bus adapter       0/0    4         0x7820    0xa00     0x0     
Local bus adapter       0/2    1         0x7820    0xa00     0x0     
Local bus adapter       0/4    2         0x7820    0xa00     0x0     
Local bus adapter       0/6    3         0x7820    0xa00     0x0     

PCI DEVICE INFORMATION
                                Path              Vendor  Device  Bus  Slot
Description                     (dec)               Id      Id     #    #
-----------                     -----              ----    ----   ---  ---
Ethernet cntlr                  0/0/0/0           0x1011  0x19    0
Built_In
SCSI bus cntlr                  0/0/1/0           0x1000  0xb     0
Built_In
SCSI bus cntlr                  0/0/1/1           0x1000  0xb     0
Built_In
SCSI bus cntlr                  0/0/2/0           0x1000  0xf     0
Built_In
SCSI bus cntlr                  0/0/2/1           0x1000  0xf     0
Built_In
System peripheral               0/0/4/0           0x103c  0x128d  0
Built_In
Comp. ser cntlr                 0/0/4/1           0x103c  0x1048  0
Built_In
System peripheral               0/0/4/2           0x0     0x0     0
Built_In

BOOT INFORMATION

   Processor           Boot ID
   ---------           -------
       0                  1  

   Autoboot:             ON
   Autosearch:           ON
   Autostart:            ON
   Fastboot:             OFF

   Primary boot path:    intscsia.15         
                         0/0/1/1.15          
                         0/0/01/01.f    (hex)
   Alternate boot path:  intscsib.15         
                         0/0/2/1.15          
                         0/0/02/01.f    (hex)
   Console path:         0/0/4/1.643         
                         0/0/04/01.283  (hex)
   Keyboard path:        0/0/4/1.0           
                         0/0/04/01.0    (hex)

   LAN Station Address:  00306e-2601de

   Wed Apr  10 04:29:21 GMT 2002    (20:02:04:10:04:29:21)

FIRMWARE INFORMATION

   Firmware Version:          42.09

        Module              Revision
        ------              --------
        System Board        A24210
        PA 8700 CPU Module  2.3

FRU INFORMATION

FRU Name:            HAR_SYS_BD 
Part Number:           A6889-60001 
Serial Number:           40CC0GR0HG 
Physical Location:     00ffff0001ffff69
Engineering Date Code: 4210 
Art Work Revision:     A2 
Scan Revision:           
FRU Specific Info:                      

FRU Name:            CRE_PCI_BD 
Part Number:           A5570-60003 
Serial Number:           40CC0ETRAT 
Physical Location:     00ffff0002ffff69
Engineering Date Code: 4026 
Art Work Revision:     A3 
Scan Revision:           
FRU Specific Info:                      

FRU Name:            HAR_GSP_BD 
Part Number:           A6889-60002 
Serial Number:           40CC0GS0TC 
Physical Location:     000000ffff06ff85
Engineering Date Code: 4204 
Art Work Revision:     A2 
Scan Revision:           
FRU Specific Info:                      

FRU Name:              DIMM_128 
Part Number:           A5572-60001 
Serial Number:         A56E03388166 
Physical Location:     0000ff000001ff74
Engineering Date Code: 4123 
Art Work Revision:     A4 
Scan Revision:           
FRU Specific Info:                      

Information Menu: Enter command > MA

---- Main Menu
---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > SEA

Searching for potential boot device(s)
This may take several minutes.

To discontinue search, press any key (termination may not be immediate).


   Path#  Device Path (dec)  Device Path (mnem)  Device Type
   -----  -----------------  ------------------  -----------
   P0     0/0/1/1.15         intscsia.15         Random access media       
   P1     0/0/2/0.6          extscsib.6          Random access media       


Main Menu: Enter command or menu > BO P1
Interact with IPL (Y, N, or Cancel)?> Y

Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 0.96 root@palinux Fri Nov  2 16:31:18 MST 2001

Boot image contains:
    0/vmlinux32 3122078 bytes @ 0x4cf000
    0/vmlinux64 3990942 bytes @ 0x7c9800
    0/ramdisk 1946807 bytes @ 0xb98000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently  used by firmware (serial).
Current command line:
0/vmlinux root=/dev/ram initrd=0/ramdisk console=ttyS0 TERM=vt102
 0: 0/vmlinux
 1: root=/dev/ram
 2: initrd=0/ramdisk
 3: console=ttyS0
 4: TERM=vt102

Edit which field?
(or 'b' to boot with this command line)? b

Command line for kernel: 'root=/dev/ram console=ttyS0 TERM=vt102'
Selected kernel: /vmlinux from partition 0
Selected ramdisk: /ramdisk from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing
64-bit kernel
ELF64 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 2063232 mediaptr 0x1000
Segment 1 load 002f8000 size 1099104 mediaptr 0x1f9000
Segment 2 load 00408000 size 16384 mediaptr 0x306000
Segment 3 load 00410000 size 32768 mediaptr 0x30a000
Loading ramdisk 1946807 bytes @ 07e14000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.9-64 (root@paer) (gcc version 3.0) #1 Fri Nov 30 20:18:56
MST 2001
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model   00005e10 00000491 00000000 00000001 33414e24 100000f0 00000008
000000b2 000000b2
vers    00000203
cpuid   00000268
CPUID   vers 19 rev 8
model   9000/800/A400-6X
Total Memory: 128 Mb
initrd: 17e14000-17fef4b7
initrd: reserving 07e14000-07fef4b7 (mem_max 08000000)
pagetable_init
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/ram console=ttyS0 TERM=vt102
Console: colour dummy device 160x64
Calibrating delay loop... 1297.61 BogoMIPS
Memory: 121328k available
Dentry-cache hash table entries: 16384 (order: 6, 262144 bytes)
Inode-cache hash table entries: 8192 (order: 5, 131072 bytes)
Mount-cache hash table entries: 2048 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 4096 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 6, 262144 bytes)
Searching for devices...
Found devices:
1. unknown device (0) at 0xfffffffffffa0000 [-96], versions 0x5e1, 0x0, 0x4
2. Astro BC Runway Port (12) at 0xfffffffffed00000 [0], versions 0x582, 0x0,
0xb
3. Elroy PCI Bridge (13) at 0xfffffffffed30000 [0/0], versions 0x782, 0x0,
0xa
4. Elroy PCI Bridge (13) at 0xfffffffffed34000 [0/2], versions 0x782, 0x0,
0xa
5. Elroy PCI Bridge (13) at 0xfffffffffed38000 [0/4], versions 0x782, 0x0,
0xa
6. Elroy PCI Bridge (13) at 0xfffffffffed3c000 [0/6], versions 0x782, 0x0,
0xa
7. Crescendo Memory (1) at 0xfffffffffed08000 [8], versions 0x9b, 0x0, 0x9
CPU(s): 1 x PA8600 (PCX-W+) at 650.000000 MHz
SBA found Astro 2.1 at 0xfffffffffed00000
lba version TR4.0 (0x5) found at 0xfffffffffed30000
lba range[2] : ignoring GMMIO (0xfffffff804000000)
  got res[100:1ff] for resource 0 of Symbios Logic Inc. (formerly NCR)
53c896
  got res[200:2ff] for resource 0 of Symbios Logic Inc. (formerly NCR)
53c896 (#2)
  got res[300:3ff] for resource 0 of Symbios Logic Inc. (formerly NCR)
53c875
  got res[400:4ff] for resource 0 of Symbios Logic Inc. (formerly NCR)
53c875 (#2)
  got res[80:ff] for resource 0 of Digital Equipment Corporation DECchip
21142/43
  got res[40:7f] for resource 1 of PCI device 103c:1048 (Hewlett-Packard
Company)
  got res[fffffffff8080000:fffffffff80bffff] for resource 6 of Digital
Equipment Corporation DECchip 21142/43
  got res[fffffffff8002000:fffffffff8003fff] for resource 3 of Symbios Logic
Inc. (formerly NCR) 53c896
  got res[fffffffff8004000:fffffffff8005fff] for resource 3 of Symbios Logic
Inc. (formerly NCR) 53c896 (#2)
  got res[fffffffff8001000:fffffffff8001fff] for resource 2 of Symbios Logic
Inc. (formerly NCR) 53c875 (#2)
  got res[fffffffff8006000:fffffffff80063ff] for resource 1 of Digital
Equipment Corporation DECchip 21142/43
  got res[fffffffff8007000:fffffffff80073ff] for resource 1 of Symbios Logic
Inc. (formerly NCR) 53c896
  got res[fffffffff8008000:fffffffff80083ff] for resource 1 of Symbios Logic
Inc. (formerly NCR) 53c896 (#2)
  got res[fffffffff8009000:fffffffff80090ff] for resource 1 of Symbios Logic
Inc. (formerly NCR) 53c875 (#2)
lba version TR4.0 (0x5) found at 0xfffffffffed34000
lba range[2] : ignoring GMMIO (0xfffffff904000000)
lba version TR4.0 (0x5) found at 0xfffffffffed38000
lba range[2] : ignoring GMMIO (0xfffffffa04000000)
lba version TR4.0 (0x5) found at 0xfffffffffed3c000
lba range[2] : ignoring GMMIO (0xfffffffb04000000)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Performance monitoring counters enabled for unknown device
Starting kswapd v1.8
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
Redundant entry in serial pci_table.  Please send the output of
lspci -vv, this message (4156,4168,4156,4171)
and the manufacturer and name of serial board or modem board
to serial-pci-info@lists.sourceforge.net.
ttyS00 at port 0x0040 (irq = 132) is a 16550A
request_module[parport_lowlevel]: Root fs not mounted
lp: driver loaded but no devices found
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre6 (July 2, 2001)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 7809 advertising 01e1.
eth0: Digital DS21143 Tulip rev 65 at 0x80, 00:30:6E:26:01:DE, IRQ 128.
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 2, function 0
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 2, function 1
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 1, function 0
sym53c8xx: setting PCI_COMMAND_INVALIDATE (fix-up)
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 1, function 1
sym53c8xx: setting PCI_COMMAND_INVALIDATE (fix-up)
sym53c8xx: 53c896 detected 
sym53c875-0: rev 0x37 on pci bus 0 device 2 function 0 irq 130
sym53c875-0: ID 7, Fast-20, Parity Checking

************* SYSTEM ALERT **************
SYSTEM NAME: uninitialized
DATE: 04/10/2002 TIME: 04:31:41
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         FLASH     ON         ON
LED State: Unexpected Reboot. Running non-OS code. Non-critical error
detected.
Check Chassis and Console Logs for error messages.

0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
0x5800087000FF6292 00006603 0A041F29 - type 11 = Timestamp 04/10/2002
04:31:41
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:A
*****************************************

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

P.S. I believe that *once* (assuming I wasn't dreaming) the above firmware
'SYSTEM ALERT' message didn't appear - instead, Linux, having gotten to the
same point (sym53c875...) simply hung. I made a point of waiting quite some
time (thinking perhaps the hard drive was taking its sweet time powering up)
so I'm pretty sure it really was 'hung.'

P.P.S. When I turn my system on, the 'Power' and 'Remote' LEDs glow solid,
but the 'Run', 'Attention' and 'Fault' lights also flash, until the 'SYSTEM
ALERT' appears, at which point the 'Run' light goes dark. Any ideas?


--%--multipart-mixed-boundary-1.4418.1018414412--%--



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Subject: Re: [parisc-linux] shiny new rp2430 (A400) won't boot :-(
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Duraid Madina wrote:
> Hi all,
> 
> 	My nice new rp2430 (looks like an A400, but has a PA-8700 at 650MHz
> inside, not sure if this is the only difference..) arrived this morning.

uhm...it *is* an A-class - see the model string ;^)

> 	Unfortunately, it doesn't boot!

Right - we have some general issue with PA8700. J6700 doesn't boot either.
While Thomas Bogendoerf was at a recent show (CeBIT?), he had access to
a J6700 to work on. Thomas concluded it was a DMA issue but I couldn't
figure out what exactly. One PA8700/Astro interaction bug workaround was
committed to CVS but I'm convinced that wasn't the issue.

> 	For the record, as soon as I power on this system, the 'Attention'
> and 'Fault' lights flash, but I have no idea if this is normal, or if not,
> why they're flashing.

It's normal because no one has written the PAT PDC code to update
chassis logs/leds. Since I'm rarely in the computer room where my
A500 lives, it's never bothered me.

> 	A transcript of the boot session is attached. I hope someone can
> help me out here!
...
>    Model: hp server rp2430 (model string 9000/800/A400-6X)


hehe...some things don't change despite marketing's efforts to
confuse people.

> 
> PROCESSOR INFORMATION
> 
>                        HVERSION  SVERSION              Processor
>   Processor   Speed     Model    Model/Op  CVERSION      State
>   ---------  --------  --------  --------  --------  -------------
>       0      650  MHz   0x05e1    0x0491     2.  3   Active               

Only 2.2 CPU had interaction problems with Astro.

....
> Linux version 2.4.9-64 (root@paer) (gcc version 3.0) #1 Fri Nov 30 20:18:56
> MST 2001
...
> Check Chassis and Console Logs for error messages.
> 
> 0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
> 0x5800087000FF6292 00006603 0A041F29 - type 11 = Timestamp 04/10/2002

This is an HPMC. HW didn't like something and died.


> P.S. I believe that *once* (assuming I wasn't dreaming) the above firmware
> 'SYSTEM ALERT' message didn't appear - instead, Linux, having gotten to the
> same point (sym53c875...) simply hung. I made a point of waiting quite some
> time (thinking perhaps the hard drive was taking its sweet time powering up)
> so I'm pretty sure it really was 'hung.'

It's possible whatever "normally" cause the HPMC simpled wedged up the
system in a way that didn't cause anything to go fatal.
I suspect the same problem is still occurring.

> P.P.S. When I turn my system on, the 'Power' and 'Remote' LEDs glow solid,
> but the 'Run', 'Attention' and 'Fault' lights also flash, until the 'SYSTEM
> ALERT' appears, at which point the 'Run' light goes dark. Any ideas?

It's the state that the firmware left it in. I'm pretty sure
linux doesn't do anything with them.

grant



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I posted a while earlier, but no response has been forthcoming.

Does anyone have any idea what I can do so solve my problem with an HP
715/75, that displays the LEDs 1,2,6 on the front panel at power-up? 
I have an HP monitor with it, and it stays blank.

The manual, if I'm reading it correctly, says the LEDs mean:

Internal inconsistency: IODC Entry_Init

But there is no mention of what this means exactly, or what to do about
it.  

What can I do to resolve this, if possible?

I would very much like to put Linux on this machine.

It seems to me hardware questions aren't off-topic... does this just
mean no one knows how to fix this?  Or is it because I have no
transcript or logs to post (because the monitor is blank I can't see
anything)?

Would it be possible to get a serial console working to see anything?
I am guessing a standard RS232 Null-modem cable would work?

Also, I have the AUI-10bT ethernet transceiver, but I don't know if it
has a valid static IP, or if it is trying DHCP lookup.

Any help would be appreciated.

Thanks.


-- 
73 de K6LNX

Matt M.
LinuxKnight




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Hi Paul,

Please retry with a recent kernel.

Greetings,
Helge

On Tuesday 09 April 2002 19:42, Paul Seelig wrote:
> Hi all,
>
> i finally downloaded the palinux-0.9.4 ISO and successfully installed
> Debian on my 715/64.  Installation was surprisingly smooth -- albeit
> without X so far -- and the system seems to run just fine dualbooting
> with the NeXTSTEP-3.3 i installed last sunday. :-)
>
> Because of NeXTSTEP i've once gotten rid of my HIL keyboard and mouse,
> replacing both with standard PS/2 variants.  Unfortunately, at the
> console the PS/2 keyboard (with German layout) chokes on pressing the
> key containing the characters '>', '<' and '|' (on a german keyboard
> the key between Shift and Y), only telling me:
>
>      keyboard: unrecognized scancode (7f) ignored
>
> I have to admit that i didn't check any FAQ.  So please simply ignore
> my question if it can be solved with some scrutinizing RTFM. ;-)
>
> Anyway, Debian runs and i'm really happy about it! :-)
>
>                                     Thanks, P. *8^



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Hello,
  I have a 715/100 that had very similiar symptoms.  I have HP-UX on it
then installed debian.  After I had the base installed I moved the machine
and in a not so brilliant move added an external cdrom and changed keyboards
and mouse.  The system sat there and acted like it was having a very difficult
time coming to terms with the changes.  To fix it, swapped out the HIL mouse
that I had switch to with a ps2 three button mouse and took the external
cdrom off the scsi chain.  I let it sit for about 20 minute to a half hour
then it decided to boot.  I also found that I could not use the on board
video after I had used the addon card.  I even disconnect the addon card,
but it made no difference.

HTH
jc

On Tue, Apr 09, 2002 at 11:22:07PM -0700, Matt McKenzie wrote:
> I posted a while earlier, but no response has been forthcoming.
> 
> Does anyone have any idea what I can do so solve my problem with an HP
> 715/75, that displays the LEDs 1,2,6 on the front panel at power-up? 
> I have an HP monitor with it, and it stays blank.
> 
> The manual, if I'm reading it correctly, says the LEDs mean:
> 
> Internal inconsistency: IODC Entry_Init
> 
> But there is no mention of what this means exactly, or what to do about
> it.  
> 
> What can I do to resolve this, if possible?
> 
> I would very much like to put Linux on this machine.
> 
> It seems to me hardware questions aren't off-topic... does this just
> mean no one knows how to fix this?  Or is it because I have no
> transcript or logs to post (because the monitor is blank I can't see
> anything)?
> 
> Would it be possible to get a serial console working to see anything?
> I am guessing a standard RS232 Null-modem cable would work?
> 
> Also, I have the AUI-10bT ethernet transceiver, but I don't know if it
> has a valid static IP, or if it is trying DHCP lookup.
> 
> Any help would be appreciated.
> 
> Thanks.
> 
> 
> -- 
> 73 de K6LNX
> 
> Matt M.
> LinuxKnight
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
Jonathan Crockett
Network Engineer
Midcontinent Communications



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On Wed, 10 Apr 2002, Helge Deller wrote:

> > - leds don't seem to work (i.e. no heartbeat or other leds on or blinking -
> > or is my hp really so idle ?)
> >   This is just with the latest 2.4.18-pa14 kernels (2.4.18-pa5-32bit
> > worked, but IIRC not perfectly)
>
> Could you post me some of your bootlogs ?

of course. but I have no access to the c240 until tomorrow.
I have access to /proc/pdc/leds, echo "0 0 0" and echo "1 1 1"
will change the /proc/pdc/leds entry, but not leds with flash.

> > - 100Mbit is not supported properly (full-duplex support is always
> >   recognized, but 100Mbit just occationally).
> >   Of course it's a full 10/100Mbit SWITCH (no hub), and I checked the
> > cables Moreover I just have 100Mbit network devices plugged into the
> > switch.
>
> I never had problems with tulip and 100MBit here (on c3k).

10Mbit works perfectly. 100Mbit works once it is detected, which is
often, but not always. Lately it seems to be working most of the times
on 100Mbit, perhaps due latest improvements in the kernel ?

But perhaps it's only a h/w issue (incompatibility with switch and
network card?). Once the workstation is switched on, it seems
the kernel won't change the connection mode (e.g. changing from
10Mbit to 100Mbit) that was initially negotiated by the network card.
Thus is presume that sometimes the h/w 100Mbit negotiation works,
sometimes not, since the 10Mbit mode is entered BEFORE starting the
linux kernel (which don't change it to 100Mbit).

> > - the 'poweroff' command doesn't work, it just shutdowns the machine, but
> > does no real poweroff. (AFAIK 'poweroff' is a synonym for 'shutdown -p
> > now', isn't it ? this doesn't work either).
> >   The powerkey works as expected (including powering off the workstation)
> >   with 32bit kernels.

[...]      // cutting out interesting stuff

> So currently I don't see any solution here. You will _always_ have to press the power
> button at least once: Directly while the kernel runs, or after you have started "shutdown -n".
> Of course I may be wrong, in which case I would appreciate if someone from HP
> would correct me here.

Ah, I see! It's a little bit strange though

> > - if fs type "auto" is set for a ext3 partition, the kernel detects the /,
> > but the mount command (in the bootscript) fails to detect the fstype.
> > Setting the fstype entry in /etc/fstab to "ext3" or "ext2" fixes the
> > problem. Since 'mount -a' fails to detect the fs type, it won't remount /
> > in read-write mode, and thus the system won't boot correctly.
> >
> >   But "auto" in /etc/fstab works with the corresponding 32bit kernel
>
> This should be reported to the debian folks.

Well, yes, maybe, because it's 'mount' specific. But why is it working
with the 32bit kernel? I thought this kind of things should be
platform-independent ...

> > - crashme is effective (example settings, after a few minutes kernel
> > crashed, even MagicSysRq didn't work. It didn't seem to 'work' on
> > 2.4.18-pa5-32bit, I didn't try with the 2.4.18-pa14-32bit kernel)
> >
> > - once I got a kernel oops at interrupt_stack() at boot up (attached to
> > mail), but eveything seemed to work. I didn't get any more kernel oops.
>
> We don't have chance to trace this bug without having your System.map.

That's true ;)
I just looked into the kernel oops and System.map and the only address
that matched the address range of a function in System.map was
interrupt_stack (exactly 00000000106100000). Since there was just one,
not reproducable kernel oops, and since I don't know what caused it,
it doesn't make sense to investigate it further. There are no other
kernel oops in /var/log/messages.
I just thought perhaps there would be a known issue with interrupt_
stack on 64bit or so ...

> > - shutdown&poweroff when hitting powerkey does not work (it just switches
> > off the workstation immediately; it works properly on the corresponding
> > 32bit kernel and 2.4.18-pa5-32bit)
>
> Ryan committed some related changes here in 2.4.18-pa16.
> Could you retry with this kernel and check the results with CONFIG_PDC_NARROW
> enabled and disabled ?

okay, but it will take some time tough ;)

> > - if I compile in support for STIcon/STIfb, it doesn't switch the output
> >   to the console (after the 'branching to kernel entry point' message).
> >   At least I waited for quite some time, and I didn't seem to go on.
> >   I didn't compile in support for STIcon/STIfb for the 32bit kernel,
> >   therefore I can't tell whether there is the same problem or not.
> >   STIcon/STIfb works with 2.4.18-pa5-32bit. Well, my FX/2 card isn't
> > supported for fb, but at least the kernel doesn't hang with that kernel.
>
> Are you using the latest palo ? Do you maybe have "console=ttyS00" as
> kernel boot parameter (check /proc/cmdline).

no, there is no console entry in palo.conf. Palo is the one from
ISO 0.9.3, and it might be updated by apt-get (I'm using unstable).

BTW, one question:

I always wondered if sid (unstable) is the preferred dist for
debian/hppa (very likely a debian-mailing-list question, but what
do you kernel hackers and developers use and prefer?)

thanks, greetings max




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> > > - 100Mbit is not supported properly (full-duplex support is always
> > >   recognized, but 100Mbit just occationally).
> > >   Of course it's a full 10/100Mbit SWITCH (no hub), and I checked the
> > > cables Moreover I just have 100Mbit network devices plugged into the
> > > switch.
> >
> > I never had problems with tulip and 100MBit here (on c3k).
> 
> 10Mbit works perfectly. 100Mbit works once it is detected, which is
> often, but not always. Lately it seems to be working most of the times
> on 100Mbit, perhaps due latest improvements in the kernel ?
> 
> But perhaps it's only a h/w issue (incompatibility with switch and
> network card?). Once the workstation is switched on, it seems
> the kernel won't change the connection mode (e.g. changing from
> 10Mbit to 100Mbit) that was initially negotiated by the network card.
> Thus is presume that sometimes the h/w 100Mbit negotiation works,
> sometimes not, since the 10Mbit mode is entered BEFORE starting the
> linux kernel (which don't change it to 100Mbit).

I've a similar problem with a C200 under hpux.  The card doesn't always
autonegotiate 100Mbit full-duplex in the PDC at boot.  I then force the
card to 100Mbit full-duplex in the hpux driver initialization.  However,
even this sometimes fails.  Then, if something happens to the switch
configuration, I have never seen the card renegotiate the link settings
successfully.  I have a feeling that it might be better to set the PDC
default to 100Mbit half-duplex, and also set the switch and boot
parameters to the same (ie., don't use full-duplex or autonegotiation).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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"M. Grabert" wrote:
> But perhaps it's only a h/w issue (incompatibility with switch and
> network card?).

Possibly. Perhaps just unplugging the cable, wait 5 seconds (or so)
and plug it back in should force a re-negotiation. Not a great work
around but perhaps a start.

...
> Well, yes, maybe, because it's 'mount' specific. But why is it working
> with the 32bit kernel? I thought this kind of things should be
> platform-independent ...

I agree - I doubt this is a mount command problem.
It might be an issue with our 32-bit syscall wrappers in the 64-bit kernels.

> - crashme is effective (example settings, after a few minutes kernel
> crashed, even MagicSysRq didn't work. It didn't seem to 'work' on
> 2.4.18-pa5-32bit, I didn't try with the 2.4.18-pa14-32bit kernel)

crashme support requires someone with good CPU knowledge to chase
down the holes in the kernel trap handler. It's just not a priority
for anyone I know unfortunately. I'd rather see said person work
on improving fork/exec performance and other lmbench results
where parisc-linux lags horribly. However, if someone wants to
learn more about the space where PARISC implementations diverge
from the architecture, making crashme "run" is a challenging
place to start.

> BTW, one question:
> 
> I always wondered if sid (unstable) is the preferred dist for
> debian/hppa (very likely a debian-mailing-list question, but what
> do you kernel hackers and developers use and prefer?)

I use both depending on the role of the machine.
At home, I'm running sid so I can play frozen-bubble (just kidding,
it's not ported to hppa yet). At work, machines I've setup are
running woody since I want to "test" how well the release is doing
that we will be recommending to non-developers.

Occasionally, sid has "hickups", nothing I haven't been able
to recovery from though it entirely possible trash the machine
(eg bad libc deb). Save those older .debs in /var/cache/apt/archives.

grant



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Hmmm.  I have a HIL mouse and kb with it.  This model doesn't have ps/2
ports so I can't change the kb.  I can put a serial mouse on it.
But I have no idea what it had attached to it before.  I am assuming it
was HIL kb and mouse but I can't be sure.

We got a batch of HP workstations donated to the school from a local
company.  Many are in use in a lab, being used as X terminals logged
into Sun servers.  But the actual classroom lab now has mostly all Suns
so the HPs aren't used much.  

I am also not sure of the state of the hard drives.  There are (2) 9g
scsi IIRC.  I don't know if HP-UX is even still on there or anything. 
But you would think it would at least come up with a prompt of some sort
even if HP-UX was wiped.

This machine doesn't have any add-on cards, no floppy or internal CD or
anything.  I do have an external 2x scsi cd I can use with it but I
haven't hooked it up yet.

With your problem did the screen stay blank?

I will try with the serial mouse.  Thanks for the suggestion.


On Wed, 2002-04-10 at 06:24, Jonathan Crockett wrote:
> Hello,
>   I have a 715/100 that had very similiar symptoms.  I have HP-UX on it
> then installed debian.  After I had the base installed I moved the machine
> and in a not so brilliant move added an external cdrom and changed keyboards
> and mouse.  The system sat there and acted like it was having a very difficult
> time coming to terms with the changes.  To fix it, swapped out the HIL mouse
> that I had switch to with a ps2 three button mouse and took the external
> cdrom off the scsi chain.  I let it sit for about 20 minute to a half hour
> then it decided to boot.  I also found that I could not use the on board
> video after I had used the addon card.  I even disconnect the addon card,
> but it made no difference.
> 
> HTH
> jc
> 
> On Tue, Apr 09, 2002 at 11:22:07PM -0700, Matt McKenzie wrote:
> > I posted a while earlier, but no response has been forthcoming.
> > 
> > Does anyone have any idea what I can do so solve my problem with an HP
> > 715/75, that displays the LEDs 1,2,6 on the front panel at power-up? 
> > I have an HP monitor with it, and it stays blank.
> > 
> > The manual, if I'm reading it correctly, says the LEDs mean:
> > 
> > Internal inconsistency: IODC Entry_Init
> > 
> > But there is no mention of what this means exactly, or what to do about
> > it.  
> > 
> > What can I do to resolve this, if possible?
> > 
> > I would very much like to put Linux on this machine.
> > 
> > It seems to me hardware questions aren't off-topic... does this just
> > mean no one knows how to fix this?  Or is it because I have no
> > transcript or logs to post (because the monitor is blank I can't see
> > anything)?
> > 
> > Would it be possible to get a serial console working to see anything?
> > I am guessing a standard RS232 Null-modem cable would work?
> > 
> > Also, I have the AUI-10bT ethernet transceiver, but I don't know if it
> > has a valid static IP, or if it is trying DHCP lookup.
> > 
> > Any help would be appreciated.
> > 
> > Thanks.
> > 
> > 
> > -- 
> > 73 de K6LNX
> > 
> > Matt M.
> > LinuxKnight
> > 
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> -- 
> Jonathan Crockett
> Network Engineer
> Midcontinent Communications
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
-- 
73 de K6LNX

Matt M.
LinuxKnight




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My box came with a HIL to ps2 converter box thingy that has a PS2 keyboard
port, a PS2 mouse port and a HIL port on it.  When I changed things around
the machine had to think for a long time, before video came up.
I take it that you have seen this machine run an OS?  If not in it's previous
life it may have had a piece of hardware that is no longer there and it is
searching for it.  Also I have always had a odd thing with the number lock
light on PS2 keyboards and 715s.  If they are working correctly it doesn't
light up, but if there is a problem it is light and stays lit.

Hopefully this sheds some light for you.
jc

On Wed, Apr 10, 2002 at 09:48:30AM -0700, Matt McKenzie wrote:
> Hmmm.  I have a HIL mouse and kb with it.  This model doesn't have ps/2
> ports so I can't change the kb.  I can put a serial mouse on it.
> But I have no idea what it had attached to it before.  I am assuming it
> was HIL kb and mouse but I can't be sure.
> 
> We got a batch of HP workstations donated to the school from a local
> company.  Many are in use in a lab, being used as X terminals logged
> into Sun servers.  But the actual classroom lab now has mostly all Suns
> so the HPs aren't used much.  
> 
> I am also not sure of the state of the hard drives.  There are (2) 9g
> scsi IIRC.  I don't know if HP-UX is even still on there or anything. 
> But you would think it would at least come up with a prompt of some sort
> even if HP-UX was wiped.
> 
> This machine doesn't have any add-on cards, no floppy or internal CD or
> anything.  I do have an external 2x scsi cd I can use with it but I
> haven't hooked it up yet.
> 
> With your problem did the screen stay blank?
> 
> I will try with the serial mouse.  Thanks for the suggestion.
> 
> 
> On Wed, 2002-04-10 at 06:24, Jonathan Crockett wrote:
> > Hello,
> >   I have a 715/100 that had very similiar symptoms.  I have HP-UX on it
> > then installed debian.  After I had the base installed I moved the machine
> > and in a not so brilliant move added an external cdrom and changed keyboards
> > and mouse.  The system sat there and acted like it was having a very difficult
> > time coming to terms with the changes.  To fix it, swapped out the HIL mouse
> > that I had switch to with a ps2 three button mouse and took the external
> > cdrom off the scsi chain.  I let it sit for about 20 minute to a half hour
> > then it decided to boot.  I also found that I could not use the on board
> > video after I had used the addon card.  I even disconnect the addon card,
> > but it made no difference.
> > 
> > HTH
> > jc
> > 
> > On Tue, Apr 09, 2002 at 11:22:07PM -0700, Matt McKenzie wrote:
> > > I posted a while earlier, but no response has been forthcoming.
> > > 
> > > Does anyone have any idea what I can do so solve my problem with an HP
> > > 715/75, that displays the LEDs 1,2,6 on the front panel at power-up? 
> > > I have an HP monitor with it, and it stays blank.
> > > 
> > > The manual, if I'm reading it correctly, says the LEDs mean:
> > > 
> > > Internal inconsistency: IODC Entry_Init
> > > 
> > > But there is no mention of what this means exactly, or what to do about
> > > it.  
> > > 
> > > What can I do to resolve this, if possible?
> > > 
> > > I would very much like to put Linux on this machine.
> > > 
> > > It seems to me hardware questions aren't off-topic... does this just
> > > mean no one knows how to fix this?  Or is it because I have no
> > > transcript or logs to post (because the monitor is blank I can't see
> > > anything)?
> > > 
> > > Would it be possible to get a serial console working to see anything?
> > > I am guessing a standard RS232 Null-modem cable would work?
> > > 
> > > Also, I have the AUI-10bT ethernet transceiver, but I don't know if it
> > > has a valid static IP, or if it is trying DHCP lookup.
> > > 
> > > Any help would be appreciated.
> > > 
> > > Thanks.
> > > 
> > > 
> > > -- 
> > > 73 de K6LNX
> > > 
> > > Matt M.
> > > LinuxKnight
> > > 
> > > 
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> > -- 
> > Jonathan Crockett
> > Network Engineer
> > Midcontinent Communications
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> -- 
> 73 de K6LNX
> 
> Matt M.
> LinuxKnight
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
Jonathan Crockett
Network Engineer
Midcontinent Communications



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To: Jonathan Crockett <jcrockett@midco.net>
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No, I have never seen this box run anything.  It was sitting in the
downstairs "lab", and the prof brought it up to the classroom to test
it, maybe use as a print server.  But he never hooked it up... I guess
we should have.  But he had to teach the class.  The others are all in
use so he probably can't give me a different one.

I suppose there is no way to just tell it to reconfigure and stop
searching for hardware that might not be there?


On Wed, 2002-04-10 at 10:02, Jonathan Crockett wrote:
> My box came with a HIL to ps2 converter box thingy that has a PS2 keyboard
> port, a PS2 mouse port and a HIL port on it.  When I changed things around
> the machine had to think for a long time, before video came up.
> I take it that you have seen this machine run an OS?  If not in it's previous
> life it may have had a piece of hardware that is no longer there and it is
> searching for it.  Also I have always had a odd thing with the number lock
> light on PS2 keyboards and 715s.  If they are working correctly it doesn't
> light up, but if there is a problem it is light and stays lit.
> 
> Hopefully this sheds some light for you.
> jc
> 
> On Wed, Apr 10, 2002 at 09:48:30AM -0700, Matt McKenzie wrote:
> > Hmmm.  I have a HIL mouse and kb with it.  This model doesn't have ps/2
> > ports so I can't change the kb.  I can put a serial mouse on it.
> > But I have no idea what it had attached to it before.  I am assuming it
> > was HIL kb and mouse but I can't be sure.
> > 
> > We got a batch of HP workstations donated to the school from a local
> > company.  Many are in use in a lab, being used as X terminals logged
> > into Sun servers.  But the actual classroom lab now has mostly all Suns
> > so the HPs aren't used much.  
> > 
> > I am also not sure of the state of the hard drives.  There are (2) 9g
> > scsi IIRC.  I don't know if HP-UX is even still on there or anything. 
> > But you would think it would at least come up with a prompt of some sort
> > even if HP-UX was wiped.
> > 
> > This machine doesn't have any add-on cards, no floppy or internal CD or
> > anything.  I do have an external 2x scsi cd I can use with it but I
> > haven't hooked it up yet.
> > 
> > With your problem did the screen stay blank?
> > 
> > I will try with the serial mouse.  Thanks for the suggestion.
> > 
> > 
> > On Wed, 2002-04-10 at 06:24, Jonathan Crockett wrote:
> > > Hello,
> > >   I have a 715/100 that had very similiar symptoms.  I have HP-UX on it
> > > then installed debian.  After I had the base installed I moved the machine
> > > and in a not so brilliant move added an external cdrom and changed keyboards
> > > and mouse.  The system sat there and acted like it was having a very difficult
> > > time coming to terms with the changes.  To fix it, swapped out the HIL mouse
> > > that I had switch to with a ps2 three button mouse and took the external
> > > cdrom off the scsi chain.  I let it sit for about 20 minute to a half hour
> > > then it decided to boot.  I also found that I could not use the on board
> > > video after I had used the addon card.  I even disconnect the addon card,
> > > but it made no difference.
> > > 
> > > HTH
> > > jc
> > > 
> > > On Tue, Apr 09, 2002 at 11:22:07PM -0700, Matt McKenzie wrote:
> > > > I posted a while earlier, but no response has been forthcoming.
> > > > 
> > > > Does anyone have any idea what I can do so solve my problem with an HP
> > > > 715/75, that displays the LEDs 1,2,6 on the front panel at power-up? 
> > > > I have an HP monitor with it, and it stays blank.
> > > > 
> > > > The manual, if I'm reading it correctly, says the LEDs mean:
> > > > 
> > > > Internal inconsistency: IODC Entry_Init
> > > > 
> > > > But there is no mention of what this means exactly, or what to do about
> > > > it.  
> > > > 
> > > > What can I do to resolve this, if possible?
> > > > 
> > > > I would very much like to put Linux on this machine.
> > > > 
> > > > It seems to me hardware questions aren't off-topic... does this just
> > > > mean no one knows how to fix this?  Or is it because I have no
> > > > transcript or logs to post (because the monitor is blank I can't see
> > > > anything)?
> > > > 
> > > > Would it be possible to get a serial console working to see anything?
> > > > I am guessing a standard RS232 Null-modem cable would work?
> > > > 
> > > > Also, I have the AUI-10bT ethernet transceiver, but I don't know if it
> > > > has a valid static IP, or if it is trying DHCP lookup.
> > > > 
> > > > Any help would be appreciated.
> > > > 
> > > > Thanks.
> > > > 
> > > > 
> > > > -- 
> > > > 73 de K6LNX
> > > > 
> > > > Matt M.
> > > > LinuxKnight
> > > > 
> > > > 
> > > > _______________________________________________
> > > > parisc-linux mailing list
> > > > parisc-linux@lists.parisc-linux.org
> > > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > > 
> > > -- 
> > > Jonathan Crockett
> > > Network Engineer
> > > Midcontinent Communications
> > > 
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > -- 
> > 73 de K6LNX
> > 
> > Matt M.
> > LinuxKnight
> > 
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> -- 
> Jonathan Crockett
> Network Engineer
> Midcontinent Communications
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
-- 
73 de K6LNX

Matt M.
LinuxKnight




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From: E Frank Ball <frankb@efball.com>
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Subject: Re: [parisc-linux] 715/75
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On Wed, Apr 10, 2002 at 12:02:39PM -0500, Jonathan Crockett wrote:
} My box came with a HIL to ps2 converter box thingy that has a PS2 keyboard
} port, a PS2 mouse port and a HIL port on it.  When I changed things around

Only the 715/64, 80, and 100 came with the HIL/PS2 keyboard thingy.
715/33, 50, and 75 can only use HIL keyboards.  I've never seen a serial
mouse on a HP-UX box that didn't require a separate driver from the
vendor.

-- 

   E Frank Ball                frankb@efball.com



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I just had to let mine run for about 30 minutes.  Leave it on before you
go home and see if it still is the same when you come back in the morning.
The other alternative is to start removing everything one at a time and see
if it comes up.  Drives, memory that sort of thing.  Also try not plugging
in any keyboard/mouse etc.
Good luck!
jc

On Wed, Apr 10, 2002 at 10:16:30AM -0700, Matt McKenzie wrote:
> No, I have never seen this box run anything.  It was sitting in the
> downstairs "lab", and the prof brought it up to the classroom to test
> it, maybe use as a print server.  But he never hooked it up... I guess
> we should have.  But he had to teach the class.  The others are all in
> use so he probably can't give me a different one.
> 
> I suppose there is no way to just tell it to reconfigure and stop
> searching for hardware that might not be there?
> 
> 
> On Wed, 2002-04-10 at 10:02, Jonathan Crockett wrote:
> > My box came with a HIL to ps2 converter box thingy that has a PS2 keyboard
> > port, a PS2 mouse port and a HIL port on it.  When I changed things around
> > the machine had to think for a long time, before video came up.
> > I take it that you have seen this machine run an OS?  If not in it's previous
> > life it may have had a piece of hardware that is no longer there and it is
> > searching for it.  Also I have always had a odd thing with the number lock
> > light on PS2 keyboards and 715s.  If they are working correctly it doesn't
> > light up, but if there is a problem it is light and stays lit.
> > 
> > Hopefully this sheds some light for you.
> > jc
> > 
> > On Wed, Apr 10, 2002 at 09:48:30AM -0700, Matt McKenzie wrote:
> > > Hmmm.  I have a HIL mouse and kb with it.  This model doesn't have ps/2
> > > ports so I can't change the kb.  I can put a serial mouse on it.
> > > But I have no idea what it had attached to it before.  I am assuming it
> > > was HIL kb and mouse but I can't be sure.
> > > 
> > > We got a batch of HP workstations donated to the school from a local
> > > company.  Many are in use in a lab, being used as X terminals logged
> > > into Sun servers.  But the actual classroom lab now has mostly all Suns
> > > so the HPs aren't used much.  
> > > 
> > > I am also not sure of the state of the hard drives.  There are (2) 9g
> > > scsi IIRC.  I don't know if HP-UX is even still on there or anything. 
> > > But you would think it would at least come up with a prompt of some sort
> > > even if HP-UX was wiped.
> > > 
> > > This machine doesn't have any add-on cards, no floppy or internal CD or
> > > anything.  I do have an external 2x scsi cd I can use with it but I
> > > haven't hooked it up yet.
> > > 
> > > With your problem did the screen stay blank?
> > > 
> > > I will try with the serial mouse.  Thanks for the suggestion.
> > > 
> > > 
> > > On Wed, 2002-04-10 at 06:24, Jonathan Crockett wrote:
> > > > Hello,
> > > >   I have a 715/100 that had very similiar symptoms.  I have HP-UX on it
> > > > then installed debian.  After I had the base installed I moved the machine
> > > > and in a not so brilliant move added an external cdrom and changed keyboards
> > > > and mouse.  The system sat there and acted like it was having a very difficult
> > > > time coming to terms with the changes.  To fix it, swapped out the HIL mouse
> > > > that I had switch to with a ps2 three button mouse and took the external
> > > > cdrom off the scsi chain.  I let it sit for about 20 minute to a half hour
> > > > then it decided to boot.  I also found that I could not use the on board
> > > > video after I had used the addon card.  I even disconnect the addon card,
> > > > but it made no difference.
> > > > 
> > > > HTH
> > > > jc
> > > > 
> > > > On Tue, Apr 09, 2002 at 11:22:07PM -0700, Matt McKenzie wrote:
> > > > > I posted a while earlier, but no response has been forthcoming.
> > > > > 
> > > > > Does anyone have any idea what I can do so solve my problem with an HP
> > > > > 715/75, that displays the LEDs 1,2,6 on the front panel at power-up? 
> > > > > I have an HP monitor with it, and it stays blank.
> > > > > 
> > > > > The manual, if I'm reading it correctly, says the LEDs mean:
> > > > > 
> > > > > Internal inconsistency: IODC Entry_Init
> > > > > 
> > > > > But there is no mention of what this means exactly, or what to do about
> > > > > it.  
> > > > > 
> > > > > What can I do to resolve this, if possible?
> > > > > 
> > > > > I would very much like to put Linux on this machine.
> > > > > 
> > > > > It seems to me hardware questions aren't off-topic... does this just
> > > > > mean no one knows how to fix this?  Or is it because I have no
> > > > > transcript or logs to post (because the monitor is blank I can't see
> > > > > anything)?
> > > > > 
> > > > > Would it be possible to get a serial console working to see anything?
> > > > > I am guessing a standard RS232 Null-modem cable would work?
> > > > > 
> > > > > Also, I have the AUI-10bT ethernet transceiver, but I don't know if it
> > > > > has a valid static IP, or if it is trying DHCP lookup.
> > > > > 
> > > > > Any help would be appreciated.
> > > > > 
> > > > > Thanks.
> > > > > 
> > > > > 
> > > > > -- 
> > > > > 73 de K6LNX
> > > > > 
> > > > > Matt M.
> > > > > LinuxKnight
> > > > > 
> > > > > 
> > > > > _______________________________________________
> > > > > parisc-linux mailing list
> > > > > parisc-linux@lists.parisc-linux.org
> > > > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > > > 
> > > > -- 
> > > > Jonathan Crockett
> > > > Network Engineer
> > > > Midcontinent Communications
> > > > 
> > > > _______________________________________________
> > > > parisc-linux mailing list
> > > > parisc-linux@lists.parisc-linux.org
> > > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > > -- 
> > > 73 de K6LNX
> > > 
> > > Matt M.
> > > LinuxKnight
> > > 
> > > 
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> > -- 
> > Jonathan Crockett
> > Network Engineer
> > Midcontinent Communications
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> -- 
> 73 de K6LNX
> 
> Matt M.
> LinuxKnight
> 

-- 
Jonathan Crockett
Network Engineer
Midcontinent Communications



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From: Jonathan Crockett <jcrockett@midco.net>
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Subject: Re: [parisc-linux] 715/75
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To: E Frank Ball <frankb@efball.com>
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On Wed, Apr 10, 2002 at 10:18:40AM -0700, E Frank Ball wrote:
> On Wed, Apr 10, 2002 at 12:02:39PM -0500, Jonathan Crockett wrote:
> } My box came with a HIL to ps2 converter box thingy that has a PS2 keyboard
> } port, a PS2 mouse port and a HIL port on it.  When I changed things around
> 
> Only the 715/64, 80, and 100 came with the HIL/PS2 keyboard thingy.
> 715/33, 50, and 75 can only use HIL keyboards.  I've never seen a serial
> mouse on a HP-UX box that didn't require a separate driver from the
> vendor.
Is there more than one HIL port on the 33/50/75 models?

-- 
Jonathan Crockett
Network Engineer
Midcontinent Communications



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From: "Ing. Peter Hans Strohmayer" <office@stromi.at>
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Hello,

i have installed the isoimage 0.93 and then made a update of
the packages via apt/dselect. I choosed the kernel 2.4.17-32.

When i am starting xdm or gdm the machines works a little bit
and then i get the following message:

High Priority Machine Check (HPMC): Code=1 regs=102f3080 (Addr=00000000)

I do not know if i need a package or made a mistake, i have no
gpm running and i tested it with and without the fontserver xfs.

What should i do?

Machinetype: C180, 1.5GB RAM, 9GB HDD for Debian and 4GB for HPUX11

Greetings,
Peter

Ing. Peter Hans Strohmayer

+ mailto: office@stromi.at
( +43 1 95 230 42
( +43 699 195 230 42




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On Wed, Apr 10, 2002 at 12:23:45PM -0500, Jonathan Crockett wrote:
> Is there more than one HIL port on the 33/50/75 models?

No, but you can daisy-chain HIL devices or use a splitter box.

-- 
Revolutions do not require corporate support.



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Subject: Re: [parisc-linux] GCC support for dwarf2
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Hi Dave,

Well I finished to co gcc-3.2 and gcc3.1 cvs (that is long with small 33800 baud
modem but that all I can get for cvs)

And I am already back with a problem:

Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> You would need to install the cvs binutils and cvs gcc versions in some
> convenient location for the testing. 

Well I just figure out that there is no configure file in cvs of binutils.
So, in the sources directory (/GNU-Dev/parisc-linux/src/binutils) I try autoconf
but it just creates an empty configure?
What do I wrong?


Thanks in advance for additional help,
    Joel


PS: Humm I do not find any glibc CVS so I will test toolchain with glibc 2.2.5.


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On Wed, 10 Apr 2002, Grant Grundler wrote:

> "M. Grabert" wrote:
> > But perhaps it's only a h/w issue (incompatibility with switch and
> > network card?).
>
> Possibly. Perhaps just unplugging the cable, wait 5 seconds (or so)
> and plug it back in should force a re-negotiation. Not a great work
> around but perhaps a start.

doesn't work. As somebody other mentioned, no re-negotiation will
work for some strange reason. It was also suggested to set up the
lan configuration in pdc to "100Mbit"; Well, it was already set
to 100Mbit, so I changed it to "Autodetect". Now it seems to work
and re-negotiation also works!

> > Well, yes, maybe, because it's 'mount' specific. But why is it working
> > with the 32bit kernel? I thought this kind of things should be
> > platform-independent ...
>
> I agree - I doubt this is a mount command problem.
> It might be an issue with our 32-bit syscall wrappers in the 64-bit kernels.

I didn't investigate this any further ...

[...]

STIfb support seems to work, I think I was just hallucinating
(or the serial cable was loose). At least it doesn't hang the C240.

The power button works now with 2.4.18-pa16-64! Great work.
Modules also work! I don't see any difference now between in the
behaviour of the 32bit and 64bit version of the kernel ;)

Thanks alot,
   Happy max




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> Well I finished to co gcc-3.2 and gcc3.1 cvs (that is long with small 33800 baud
> modem but that all I can get for cvs)
> 
> And I am already back with a problem:
> 
> Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:
> 
> > You would need to install the cvs binutils and cvs gcc versions in some
> > convenient location for the testing. 
> 
> Well I just figure out that there is no configure file in cvs of binutils.

Remove "configure" and do another checkout.  Use checkout rather than
update since sometimes update has problems in the toplevel directory.

> So, in the sources directory (/GNU-Dev/parisc-linux/src/binutils) I try autoconf
> but it just creates an empty configure?
> What do I wrong?

There are two types of "configure" files.  The toplevel configure script
in binutils (and also gcc) are currently manually maintained.  The
binutils "configure" file isn't autoconf generated.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> > Well I finished to co gcc-3.2 and gcc3.1 cvs (that is long with small
> 33800 baud
> > modem but that all I can get for cvs)
> > 
> > And I am already back with a problem:
> > 
> > Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:
> > 
> > > You would need to install the cvs binutils and cvs gcc versions in
> some
> > > convenient location for the testing. 
> > 
> > Well I just figure out that there is no configure file in cvs of
> binutils.
> 
> Remove "configure" and do another checkout.  Use checkout rather than
> update since sometimes update has problems in the toplevel directory.

I just do another co and effectively configure is there now?
(I also notice the problem of update :_( )

> 
> > So, in the sources directory (/GNU-Dev/parisc-linux/src/binutils) I
> try autoconf
> > but it just creates an empty configure?
> > What do I wrong?
> 
> There are two types of "configure" files.  The toplevel configure
> script
> in binutils (and also gcc) are currently manually maintained.  The
> binutils "configure" file isn't autoconf generated.

Ok.

Dave thanks a lot for info,
    Joel

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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] Re: SMP instability?
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To: "D'Ausilio, John" <John.Dausilio@edge-technologies.com>
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On Thu, Apr 11, 2002 at 03:16:25PM -0400, D'Ausilio, John wrote:
> Is the 2.4.18 which comes down from the archive as recent as the ones in the
> FTP server? I'm going to boot back into the original kernel and try getting
> the latest from the FTP server .. if that dosn't work I guess I'll get the
> sources and build from CVS. Any other hints/clues/suggestions? Should I just
> run single proc for now?

Yes, we've also found 2.4.18 to be unstable SMP.  I believe Grant has a
handle on this problem now, so expect it to be fixed quite soon.

-- 
Revolutions do not require corporate support.



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Subject: [parisc-linux] Re: Problems with hppa-gcc (again)
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Randolph,

> The error is:
> /usr/bin/ld: layers.o(.text+0x41a28): cannot reach 0000007d_get_all_args+0, recompile with -ffunction-sections
> /usr/bin/ld: layers.o(.text+0x41a28): cannot handle R_PARISC_PCREL17F for get_all_args
> /usr/bin/ld: final link failed: Bad value

I have applied a patch to the gcc 3.2 (experimental) trunk which I believed
fixes the above problem.  It is now possible to compile large objects.
Long calls still may not be optimal but the code should work.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Hi Dave,

Here am I with something confusing me about glibc building.

In the Carlos O'Donell recipe
(http://www.parisc-linux.org/toolchain/PA-Linux-XC-HOWTO-04.html)

It is set "export PATH=$PATH:$DEST/bin"
So at configure step it was selected gcc-3.0.4 (the last release for hppa-linux box)

Naturally if I put "export PATH=$DEST/bin:$PATH", the configure of glibc select
(for me well) gcc-3.2.

What is the right way? (for me the second)

Thanks for more help,
    Joel

Quoting joel.soete@freebel.net:

> Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:
> 
> > > Well I finished to co gcc-3.2 and gcc3.1 cvs (that is long with
> small
> > 33800 baud
> > > modem but that all I can get for cvs)
> > > 
> > > And I am already back with a problem:
> > > 
> > > Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:
> > > 
> > > > You would need to install the cvs binutils and cvs gcc versions
> in
> > some
> > > > convenient location for the testing. 
> > > 
> > > Well I just figure out that there is no configure file in cvs of
> > binutils.
> > 
> > Remove "configure" and do another checkout.  Use checkout rather than
> > update since sometimes update has problems in the toplevel directory.
> 
> I just do another co and effectively configure is there now?
> (I also notice the problem of update :_( )
> 
> > 
> > > So, in the sources directory (/GNU-Dev/parisc-linux/src/binutils) I
> > try autoconf
> > > but it just creates an empty configure?
> > > What do I wrong?
> > 
> > There are two types of "configure" files.  The toplevel configure
> > script
> > in binutils (and also gcc) are currently manually maintained.  The
> > binutils "configure" file isn't autoconf generated.
> 
> Ok.
> 
> Dave thanks a lot for info,
>     Joel
> 
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> 
> 


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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

hello,

I set up a Apollo Model 735/99 with parisc linux 0.9.3. Installation was ok, 
but I couldn't get the network card running. I don't know what card it is, 
only that it is an eisa card with bnc and aui interfaces.

I include in that message the startup message, hoping there is any hint for 
my problem. I would be very appreciated if I hear anything.

Booting from:     scsi.6.0     MICROP  2112

Hard booted.
palo ipl 0.96 root@smallone Sun Nov 11 23:23:30 UTC 2001

Partition Start(MB) End(MB) Id Type
1               1      15   f0 Palo
2              16    1001   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 3122078 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently  used by firmware (serial).

Command line for kernel: 'root=/dev/sdb2 HOME=/ console=ttyS0 TERM=vt102'
Selected kernel: /boot/vmlinux from partition 2
Opening /boot/vmlinux
Opening /boot/vmlinux-2.4.9-32
ELF32 executable
Entry 00100000 first 00100000 n 6
Segment 0 load 00100000 size 1618208 mediaptr 0x1000
Segment 1 load 0028c000 size 287728 mediaptr 0x18d000
Segment 2 load 002d4000 size 379072 mediaptr 0x1d4000
Segment 3 load 00334000 size 8192 mediaptr 0x231000
Segment 4 load 00338000 size 32768 mediaptr 0x233000
Segment 5 load 003750e8 size 83184 mediaptr 0x23b0e8
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.9-32 (root@paer) (gcc version 3.0.2 (Debian)) #1 Fri Nov 30 
19FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model   00002030 00000481 00000000 00000000 78137887 ffffffff 00000004 
0000000a
vers    00000013
CPUID   vers 0 rev 0
model   9000/735
Total Memory: 208 Mb
pagetable_init
On node 0 totalpages: 53248
zone(0): 53248 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sdb2 HOME=/ console=ttyS0 TERM=vt102
Console: colour dummy device 160x64
Calibrating delay loop... 98.71 BogoMIPS
Memory: 206764k available
Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
Searching for devices...
Found devices:
1. Outfield Core BA (11) at 0xf082f000 [2], versions 0x9, 0x0, 0x70
2. Outfield Core SCSI (10) at 0xf0825000 [2/0/1], versions 0x9, 0x0, 0x71
3. Outfield Core HIL (10) at 0xf0821000 [2/0/3], versions 0x9, 0x0, 0x73
4. Outfield Core RS-232 (10) at 0xf0823000 [2/0/4], versions 0x9, 0x0, 0x75
5. Outfield Core RS-232 (10) at 0xf0822000 [2/0/5], versions 0x9, 0x0, 0x75
6. Outfield Core Centronics (10) at 0xf0824000 [2/0/6], versions 0x9, 0x0, 
0x74
7. Outfield FW SCSI (10) at 0xf0830000 [2/0/7], versions 0x9, 0x0, 0x7c
8. Outfield Audio (10) at 0xf1000000 [2/0/8], versions 0x9, 0x0, 0x7f
9. Outfield FDDI (10) at 0xf0831000 [2/0/9], versions 0x9, 0x0, 0x7d
10. Cobra EISA BA (11) at 0xfc000000 [4], versions 0x4, 0x0, 0x76
11. Hardball (735/99) (0) at 0xfffbe000 [8], versions 0x203, 0x0, 0x4
12. Hardball (1) at 0xfffbf000 [9], versions 0x19, 0x0, 0x9
CPU(s): 1 x PA7100 (PCX-T) at 99.000000 MHz
Cutoff version 4 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered
Mongoose EISA Adapter found at 0xfc000000
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI 
enttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
Found HIL at 0xf0821000, IRQ 94
HIL: no keyboard present.
Warning : device (10, 0x9, 0x0, 0x73) NOT claimed by HIL
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
SCSI subsystem driver Revision: 1.00
53c700: consistent memory allocation failed
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0
scsi0 : LASI SCSI 53c700
  Vendor: SONY      Model: CD-ROM CDU-76S    Rev: 1.1c
  Type:   CD-ROM                             ANSI SCSI revision: 02
  Vendor: QUANTUM   Model: FIREBALL1050S     Rev: 630C
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: MICROP    Model: 2112              Rev: 4024
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)
Partition check:
 sda: sda1 sda2
SCSI device sdb: 2051460 512-byte hdwr sectors (1050 MB)
 sdb: sdb1 sdb2
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 3, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.12
sticonsole_init: searching for STI ROMs
BUG: Skipping previously registered driver: sti (native)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 16384 bind 32768)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
INIT: version 2.84 booting
Activating swap.
Adding Swap: 124768k swap-space (priority -1)
Checking root file system...
fsck 1.25 (20-Sep-2001)
/dev/sdb2 was not cleanly unmounted, check forced.
/dev/sdb2: |=====                                                   |  8.8%   
/dSystem time was Fri Apr  5 13:29:19 UTC 2002.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Fri Apr  5 13:28:53 UTC 2002.
Calculating module dependencies... done.
Loading modules: tun Universal TUN/TAP device driver 1.4 (C)1999-2001 Maxim 
Krasppp_async CSLIP: code copyright 1989 Regents of the University of 
California
PPP generic driver version 2.4.1
ppp_deflate PPP Deflate Compression module registered
ppp_synctty sk98lin sk98lin: Network Device Driver v4.06
Copyright (C) 2000-2001 SysKonnect GmbH.

Checking all file systems...
fsck 1.25 (20-Sep-2001)
Setting kernel variables.
Mounting local filesystems...
nothing was mounted
Running 0dns-down to make sure resolv.conf is ok...chmod: getting attributes 
of
done.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: done.

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Fri Apr  5 13:29:08 UTC 2002

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting internet superserver: inetd.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.
Configuring the base system...

Using CD-ROM mount point /cdrom/
Identifying.. [6b8fd7bcb09f2b771ad6347a17d7a170-2]
Scanning Disc for index files..  Found 2 package indexes and 0 source indexes.
Found label 'Debian GNU/Linux 3.0 prerelease _Woody_ - Unofficial hppa 
Binary-1
This Disc is called:
 'Debian GNU/Linux 3.0 prerelease _Woody_ - Unofficial hppa Binary-1 
(20011205)'Reading Package Indexes... 0%Reading Package Indexes... 1%Reading 
Package IndexeWrote 581 records.
Writing new source list
Source List entries for this Disc are:
deb cdrom:[Debian GNU/Linux 3.0 prerelease _Woody_ - Unofficial hppa Binary-1 
(2Repeat this process for the rest of the CDs in your set.

- -- 
Hannes Wenzel                    E-mail: h.wenzel@delphi.at
DELPHI Software GesmbH           Web: http://www.delphi.at/
Consulting & IT-Services
Vivenotgasse 48
A-1120 Wien, Austria
____________________________________________________________________

Key fingerprint = 33A2 A4F8 E6B9 C83F 65EF  7FD9 A6C2 3EDF DD3B 2E59
____________________________________________________________________
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Subject: Re: [parisc-linux] GCC support for dwarf2
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Xref: news.gmane.org gmane.linux.ports.parisc:14578

> Here am I with something confusing me about glibc building.
> 
> In the Carlos O'Donell recipe
> (http://www.parisc-linux.org/toolchain/PA-Linux-XC-HOWTO-04.html)
> 
> It is set "export PATH=$PATH:$DEST/bin"
> So at configure step it was selected gcc-3.0.4 (the last release for hppa-linux box)
> 
> Naturally if I put "export PATH=$DEST/bin:$PATH", the configure of glibc select
> (for me well) gcc-3.2.
> 
> What is the right way? (for me the second)

Here is the script that I use to build glibc.  This installs to the same
prefix that I use for gcc and binutils.

#!/bin/sh
# /bin/sh must be bash!
export PATH=/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/home/dave/opt/
gnu/bin
unset LD_RUN_PATH
unset LD_LIBRARY_PATH
export CC=/home/dave/opt/gnu/bin/gcc
export CFLAGS="-O2 -g"
../glibc/configure --build=hppa-linux --host=hppa-linux --target=hppa-linux --pr
efix=/home/dave/opt/gnu --disable-profile --without-cvs --enable-add-ons --enabl
e-hacker-mode &&
make &&
make install

I tried to ensure that I am using the system tools for the build and install
except for the compiler which I specify with CC.  The compiler was built with
--with-gnu-as and --with-gnu-ld, so it knows where to find its tools
independent of the PATH setting.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: Re: [parisc-linux] GCC support for dwarf2
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Xref: news.gmane.org gmane.linux.ports.parisc:14579

Dave,

It confirms my first idea. (I also just find back:
http://mkhppa1.esiee.fr/archive/script_toolchain).

Thanks a lot,
    Joel

PS: I will send a mail to Carlos to report him this small bug and some update

Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> > Here am I with something confusing me about glibc building.
> > 
> > In the Carlos O'Donell recipe
> > (http://www.parisc-linux.org/toolchain/PA-Linux-XC-HOWTO-04.html)
> > 
> > It is set "export PATH=$PATH:$DEST/bin"
> > So at configure step it was selected gcc-3.0.4 (the last release for
> hppa-linux box)
> > 
> > Naturally if I put "export PATH=$DEST/bin:$PATH", the configure of
> glibc select
> > (for me well) gcc-3.2.
> > 
> > What is the right way? (for me the second)
> 
> Here is the script that I use to build glibc.  This installs to the
> same
> prefix that I use for gcc and binutils.
> 
> #!/bin/sh
> # /bin/sh must be bash!
> export
> PATH=/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/home/dave/opt/
> gnu/bin
> unset LD_RUN_PATH
> unset LD_LIBRARY_PATH
> export CC=/home/dave/opt/gnu/bin/gcc
> export CFLAGS="-O2 -g"
> ../glibc/configure --build=hppa-linux --host=hppa-linux
> --target=hppa-linux --pr
> efix=/home/dave/opt/gnu --disable-profile --without-cvs --enable-add-ons
> --enabl
> e-hacker-mode &&
> make &&
> make install
> 
> I tried to ensure that I am using the system tools for the build and
> install
> except for the compiler which I specify with CC.  The compiler was built
> with
> --with-gnu-as and --with-gnu-ld, so it knows where to find its tools
> independent of the PATH setting.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc.ca
> National Research Council of Canada              (613) 990-0752 (FAX:
> 952-6605)
> 
> 


-------------------------------------------------
This mail sent through Tiscali Webmail (http://webmail.tiscali.be)



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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] GCC support for dwarf2
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Xref: news.gmane.org gmane.linux.ports.parisc:14580

> Hi Dave,
> 
> Here am I with something confusing me about glibc building.
> 
> In the Carlos O'Donell recipe
> (http://www.parisc-linux.org/toolchain/PA-Linux-XC-HOWTO-04.html)
> 
> It is set "export PATH=$PATH:$DEST/bin"
> So at configure step it was selected gcc-3.0.4 (the last release for hppa-linux box)
> 
> Naturally if I put "export PATH=$DEST/bin:$PATH", the configure of glibc select
> (for me well) gcc-3.2.
> 
> What is the right way? (for me the second)
> 
> Thanks for more help,
>     Joel
>

The document describes building a cross-compiler for non-hppa->hppa. 
Where gcc would be prefaced with 'hppa-linux' and might be
the only such executable on the system. Obviously if you have multiple
toolchains on your path the order should be '$DEST/bin:$PATH'.

Happily this document also serves as a 'build the toolchain' document :)

I'll update that bit, make some spelling mistakes and email Grant.

Thank Joel!

Cheers,
Carlos.



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Hannes,

first, you need a newer kernel, there have been a lot of changes since 
november when the 0.9.3 CD was built. You should see something like:

Mongoose EISA Adapter found at 0xfc000000
EISA EEPROM at 0xf0810400
Enumerating EISA bus
EISA slot 1 a configured board was not detected ( expected ___FFFF)

except there's no board in this machine.

then, you most likely need to build a customized kernel with support for 
the NIC you have. For that you probably have to have a look at it to 
determine what type it is.

         HTH,
         Christian

At 03:35 PM 4/12/2002 +0200, Hannes Wenzel wrote:
>-----BEGIN PGP SIGNED MESSAGE-----
>Hash: SHA1
>
>hello,
>
>I set up a Apollo Model 735/99 with parisc linux 0.9.3. Installation was ok,
>but I couldn't get the network card running. I don't know what card it is,
>only that it is an eisa card with bnc and aui interfaces.
>
>I include in that message the startup message, hoping there is any hint for
>my problem. I would be very appreciated if I hear anything.
>
>Booting from:     scsi.6.0     MICROP  2112
>
>Hard booted.
>palo ipl 0.96 root@smallone Sun Nov 11 23:23:30 UTC 2001
>
>Partition Start(MB) End(MB) Id Type
>1               1      15   f0 Palo
>2              16    1001   83 ext2
>
>PALO(F0) partition contains:
>     0/vmlinux32 3122078 bytes @ 0x48000
>
>Information: No console specified on kernel command line. This is normal.
>PALO will choose the console currently  used by firmware (serial).
>
>Command line for kernel: 'root=/dev/sdb2 HOME=/ console=ttyS0 TERM=vt102'
>Selected kernel: /boot/vmlinux from partition 2
>Opening /boot/vmlinux
>Opening /boot/vmlinux-2.4.9-32
>ELF32 executable
>Entry 00100000 first 00100000 n 6
>Segment 0 load 00100000 size 1618208 mediaptr 0x1000
>Segment 1 load 0028c000 size 287728 mediaptr 0x18d000
>Segment 2 load 002d4000 size 379072 mediaptr 0x1d4000
>Segment 3 load 00334000 size 8192 mediaptr 0x231000
>Segment 4 load 00338000 size 32768 mediaptr 0x233000
>Segment 5 load 003750e8 size 83184 mediaptr 0x23b0e8
>Branching to kernel entry point 0x00100000.  If this is the last
>message you see, you may need to switch your console.  This is
>a common symptom -- search the FAQ and mailing list at parisc-linux.org
>
>Linux version 2.4.9-32 (root@paer) (gcc version 3.0.2 (Debian)) #1 Fri Nov 30
>19FP[0] enabled: Rev 1 Model 9
>The 32-bit Kernel has started...
>Determining PDC firmware type: Snake.
>model   00002030 00000481 00000000 00000000 78137887 ffffffff 00000004
>0000000a
>vers    00000013
>CPUID   vers 0 rev 0
>model   9000/735
>Total Memory: 208 Mb
>pagetable_init
>On node 0 totalpages: 53248
>zone(0): 53248 pages.
>zone(1): 0 pages.
>zone(2): 0 pages.
>Kernel command line: root=/dev/sdb2 HOME=/ console=ttyS0 TERM=vt102
>Console: colour dummy device 160x64
>Calibrating delay loop... 98.71 BogoMIPS
>Memory: 206764k available
>Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)
>Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
>Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
>Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
>Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
>Searching for devices...
>Found devices:
>1. Outfield Core BA (11) at 0xf082f000 [2], versions 0x9, 0x0, 0x70
>2. Outfield Core SCSI (10) at 0xf0825000 [2/0/1], versions 0x9, 0x0, 0x71
>3. Outfield Core HIL (10) at 0xf0821000 [2/0/3], versions 0x9, 0x0, 0x73
>4. Outfield Core RS-232 (10) at 0xf0823000 [2/0/4], versions 0x9, 0x0, 0x75
>5. Outfield Core RS-232 (10) at 0xf0822000 [2/0/5], versions 0x9, 0x0, 0x75
>6. Outfield Core Centronics (10) at 0xf0824000 [2/0/6], versions 0x9, 0x0,
>0x74
>7. Outfield FW SCSI (10) at 0xf0830000 [2/0/7], versions 0x9, 0x0, 0x7c
>8. Outfield Audio (10) at 0xf1000000 [2/0/8], versions 0x9, 0x0, 0x7f
>9. Outfield FDDI (10) at 0xf0831000 [2/0/9], versions 0x9, 0x0, 0x7d
>10. Cobra EISA BA (11) at 0xfc000000 [4], versions 0x4, 0x0, 0x76
>11. Hardball (735/99) (0) at 0xfffbe000 [8], versions 0x203, 0x0, 0x4
>12. Hardball (1) at 0xfffbf000 [9], versions 0x19, 0x0, 0x9
>CPU(s): 1 x PA7100 (PCX-T) at 99.000000 MHz
>Cutoff version 4 at 0xf082f000 found.
>LED (ASP-style) display at f0800020 registered
>Mongoose EISA Adapter found at 0xfc000000
>POSIX conformance testing by UNIFIX
>Linux NET4.0 for Linux 2.4
>Based upon Swansea University Computer Society NET3.039
>Starting kswapd v1.8
>parport_init_chip: enhanced parport-modes not supported.
>parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
>pty: 256 Unix98 ptys configured
>Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI
>enttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
>ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
>Found HIL at 0xf0821000, IRQ 94
>HIL: no keyboard present.
>Warning : device (10, 0x9, 0x0, 0x73) NOT claimed by HIL
>lp0: using parport0 (interrupt-driven).
>Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
>block: 128 slots per queue, batch=16
>RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
>loop: loaded (max 8 devices)
>SCSI subsystem driver Revision: 1.00
>53c700: consistent memory allocation failed
>53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
>scsi0: 53c700 rev 0
>scsi0 : LASI SCSI 53c700
>   Vendor: SONY      Model: CD-ROM CDU-76S    Rev: 1.1c
>   Type:   CD-ROM                             ANSI SCSI revision: 02
>   Vendor: QUANTUM   Model: FIREBALL1050S     Rev: 630C
>   Type:   Direct-Access                      ANSI SCSI revision: 02
>   Vendor: MICROP    Model: 2112              Rev: 4024
>   Type:   Direct-Access                      ANSI SCSI revision: 02
>Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
>Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
>SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)
>Partition check:
>  sda: sda1 sda2
>SCSI device sdb: 2051460 512-byte hdwr sectors (1050 MB)
>  sdb: sdb1 sdb2
>Attached scsi CD-ROM sr0 at scsi0, channel 0, id 3, lun 0
>sr0: scsi-1 drive
>Uniform CD-ROM driver Revision: 3.12
>sticonsole_init: searching for STI ROMs
>BUG: Skipping previously registered driver: sti (native)
>md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
>md: Autodetecting RAID arrays.
>md: autorun ...
>md: ... autorun DONE.
>NET4: Linux TCP/IP 1.0 for NET4.0
>IP Protocols: ICMP, UDP, TCP
>IP: routing cache hash table of 2048 buckets, 16Kbytes
>TCP: Hash tables configured (established 16384 bind 32768)
>NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
>VFS: Mounted root (ext2 filesystem) readonly.
>INIT: version 2.84 booting
>Activating swap.
>Adding Swap: 124768k swap-space (priority -1)
>Checking root file system...
>fsck 1.25 (20-Sep-2001)
>/dev/sdb2 was not cleanly unmounted, check forced.
>/dev/sdb2: |=====                                                   |  8.8%
>/dSystem time was Fri Apr  5 13:29:19 UTC 2002.
>Setting the System Clock using the Hardware Clock as reference...
>System Clock set. System local time is now Fri Apr  5 13:28:53 UTC 2002.
>Calculating module dependencies... done.
>Loading modules: tun Universal TUN/TAP device driver 1.4 (C)1999-2001 Maxim
>Krasppp_async CSLIP: code copyright 1989 Regents of the University of
>California
>PPP generic driver version 2.4.1
>ppp_deflate PPP Deflate Compression module registered
>ppp_synctty sk98lin sk98lin: Network Device Driver v4.06
>Copyright (C) 2000-2001 SysKonnect GmbH.
>
>Checking all file systems...
>fsck 1.25 (20-Sep-2001)
>Setting kernel variables.
>Mounting local filesystems...
>nothing was mounted
>Running 0dns-down to make sure resolv.conf is ok...chmod: getting attributes
>of
>done.
>Setting up IP spoofing protection: rp_filter.
>Configuring network interfaces: done.
>
>Setting the System Clock using the Hardware Clock as reference...
>System Clock set. Local time: Fri Apr  5 13:29:08 UTC 2002
>
>Cleaning: /tmp /var/lock /var/run.
>Initializing random number generator... done.
>Recovering nvi editor sessions... done.
>INIT: Entering runlevel: 2
>Starting system log daemon: syslogd.
>Starting kernel log daemon: klogd.
>Starting internet superserver: inetd.
>Starting deferred execution scheduler: atd.
>Starting periodic command scheduler: cron.
>Configuring the base system...
>
>Using CD-ROM mount point /cdrom/
>Identifying.. [6b8fd7bcb09f2b771ad6347a17d7a170-2]
>Scanning Disc for index files..  Found 2 package indexes and 0 source indexes.
>Found label 'Debian GNU/Linux 3.0 prerelease _Woody_ - Unofficial hppa
>Binary-1
>This Disc is called:
>  'Debian GNU/Linux 3.0 prerelease _Woody_ - Unofficial hppa Binary-1
>(20011205)'Reading Package Indexes... 0%Reading Package Indexes... 1%Reading
>Package IndexeWrote 581 records.
>Writing new source list
>Source List entries for this Disc are:
>deb cdrom:[Debian GNU/Linux 3.0 prerelease _Woody_ - Unofficial hppa Binary-1
>(2Repeat this process for the rest of the CDs in your set.
>
>- --
>Hannes Wenzel                    E-mail: h.wenzel@delphi.at
>DELPHI Software GesmbH           Web: http://www.delphi.at/
>Consulting & IT-Services
>Vivenotgasse 48
>A-1120 Wien, Austria
>____________________________________________________________________
>
>Key fingerprint = 33A2 A4F8 E6B9 C83F 65EF  7FD9 A6C2 3EDF DD3B 2E59
>____________________________________________________________________
>-----BEGIN PGP SIGNATURE-----
>Version: GnuPG v1.0.6 (GNU/Linux)
>Comment: For info see http://www.gnupg.org
>
>iD8DBQE8tuKXpsI+3907LlkRAiS6AKCPISd49rpx64Fo8X08PjKFz7Fw7gCfQRUg
>0v8aiVKkjKnWfZ/rjJEV30s=
>=3T+o
>-----END PGP SIGNATURE-----
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Patch to debina glibc-2.2.5 for gcc-3.2 build
Date: Sat, 13 Apr 2002 11:50:48 -0400 (EDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:14582

This fixes a couple of problems:

1) Multi line string literals are gone gcc 3.2.
2) configure needs to link in libgcc_eh in check for __register_frame_info.

Maybe this should go to debian list but it is mostly PA specific.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2002-04-13  John David Anglin  <dave@hiauly1.hia.nrc.ca>

	* configure.in (libc_cv_gcc_dwarf2_unwind_info): Add "-lgcc_eh" to
	libraries to link with.
	* configure: Rebuilt
	* sysdeps/hppa/elf/initfini.c: Don't use multi line string literal.
	* linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c: Likewise.

--- ./configure.in.orig	Thu Dec 20 07:50:32 2001
+++ ./configure.in	Wed Mar 27 12:49:36 2002
@@ -1341,11 +1341,12 @@
 free () {}
 abort () {}
 __bzero () {}
+dl_iterate_phdr () {}
 EOF
 dnl No \ in command here because it ends up inside ''.
 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame_info
 			    -nostdlib -nostartfiles
-			    -o conftest conftest.c -lgcc >&AC_FD_CC]); then
+			    -o conftest conftest.c -lgcc_eh -lgcc >&AC_FD_CC]); then
   libc_cv_gcc_dwarf2_unwind_info=static
 else
   libc_cv_gcc_dwarf2_unwind_info=no
@@ -1353,7 +1354,7 @@
 if test $libc_cv_gcc_dwarf2_unwind_info = no; then
   if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame
 			      -nostdlib -nostartfiles
-			      -o conftest conftest.c -lgcc >&AC_FD_CC]); then
+			      -o conftest conftest.c -lgcc_eh -lgcc >&AC_FD_CC]); then
     libc_cv_gcc_dwarf2_unwind_info=yes
   else
     libc_cv_gcc_dwarf2_unwind_info=no
--- ./sysdeps/hppa/elf/initfini.c.orig	Mon Jul  9 17:56:22 2001
+++ ./sysdeps/hppa/elf/initfini.c	Fri Apr 12 18:49:26 2002
@@ -39,84 +39,84 @@
    making the comparison and indirect call is quite expensive (see the
    comment in sysdeps/generic/initfini.c). */
 
-__asm__ ("
-
-#include \"defs.h\"
-
-/*@HEADER_ENDS*/
-
-/*@_init_PROLOG_BEGINS*/
-	.section .init
-	.align 4
-	.globl _init
-	.type _init,@function
-_init:
-	stw	%rp,-20(%sp)
-	stwm	%r4,64(%sp)
-	stw	%r19,-32(%sp)
-	bl	__gmon_start__,%rp
-	copy	%r19,%r4	/* delay slot */
-	copy	%r4,%r19
-/*@_init_PROLOG_ENDS*/
-
-/*@_init_EPILOG_BEGINS*/
-        .text
-        .align 4
-        .weak   __gmon_start__
-        .type    __gmon_start__,@function
-__gmon_start__:
-	.proc
-	.callinfo
-	.entry
-        bv,n %r0(%r2)
-	.exit
-	.procend
-
-/* Here is the tail end of _init.  We put __gmon_start before this so
-   that the assembler creates the .PARISC.unwind section for us, ie.
-   with the right attributes.  */
-	.section .init
-	ldw	-84(%sp),%rp
-	copy	%r4,%r19
-	bv	%r0(%rp)
-_end_init:
-	ldwm	-64(%sp),%r4
-
-/* Our very own unwind info, because the assembler can't handle
-   functions split into two or more pieces.  */
-	.section .PARISC.unwind
-	.extern _init
-	.word	_init, _end_init
-	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
-
-/*@_init_EPILOG_ENDS*/
-
-/*@_fini_PROLOG_BEGINS*/
-	.section .fini
-	.align 4
-	.globl _fini
-	.type _fini,@function
-_fini:
-	stw	%rp,-20(%sp)
-	stwm	%r4,64(%sp)
-	stw	%r19,-32(%sp)
-	copy	%r19,%r4
-/*@_fini_PROLOG_ENDS*/
-
-/*@_fini_EPILOG_BEGINS*/
-	.section .fini
-	ldw	-84(%sp),%rp
-	copy	%r4,%r19
-	bv	%r0(%rp)
-_end_fini:
-	ldwm	-64(%sp),%r4
-
-	.section .PARISC.unwind
-	.extern _fini
-	.word	_fini, _end_fini
-	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
-
-/*@_fini_EPILOG_ENDS*/
-
-/*@TRAILER_BEGINS*/
+__asm__ ("\n\
+\n\
+#include \"defs.h\"\n\
+\n\
+/*@HEADER_ENDS*/\n\
+\n\
+/*@_init_PROLOG_BEGINS*/\n\
+	.section .init\n\
+	.align 4\n\
+	.globl _init\n\
+	.type _init,@function\n\
+_init:\n\
+	stw	%rp,-20(%sp)\n\
+	stwm	%r4,64(%sp)\n\
+	stw	%r19,-32(%sp)\n\
+	bl	__gmon_start__,%rp\n\
+	copy	%r19,%r4	/* delay slot */\n\
+	copy	%r4,%r19\n\
+/*@_init_PROLOG_ENDS*/\n\
+\n\
+/*@_init_EPILOG_BEGINS*/\n\
+        .text\n\
+        .align 4\n\
+        .weak   __gmon_start__\n\
+        .type    __gmon_start__,@function\n\
+__gmon_start__:\n\
+	.proc\n\
+	.callinfo\n\
+	.entry\n\
+        bv,n %r0(%r2)\n\
+	.exit\n\
+	.procend\n\
+\n\
+/* Here is the tail end of _init.  We put __gmon_start before this so\n\
+   that the assembler creates the .PARISC.unwind section for us, ie.\n\
+   with the right attributes.  */\n\
+	.section .init\n\
+	ldw	-84(%sp),%rp\n\
+	copy	%r4,%r19\n\
+	bv	%r0(%rp)\n\
+_end_init:\n\
+	ldwm	-64(%sp),%r4\n\
+\n\
+/* Our very own unwind info, because the assembler can't handle\n\
+   functions split into two or more pieces.  */\n\
+	.section .PARISC.unwind\n\
+	.extern _init\n\
+	.word	_init, _end_init\n\
+	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\n\
+\n\
+/*@_init_EPILOG_ENDS*/\n\
+\n\
+/*@_fini_PROLOG_BEGINS*/\n\
+	.section .fini\n\
+	.align 4\n\
+	.globl _fini\n\
+	.type _fini,@function\n\
+_fini:\n\
+	stw	%rp,-20(%sp)\n\
+	stwm	%r4,64(%sp)\n\
+	stw	%r19,-32(%sp)\n\
+	copy	%r19,%r4\n\
+/*@_fini_PROLOG_ENDS*/\n\
+\n\
+/*@_fini_EPILOG_BEGINS*/\n\
+	.section .fini\n\
+	ldw	-84(%sp),%rp\n\
+	copy	%r4,%r19\n\
+	bv	%r0(%rp)\n\
+_end_fini:\n\
+	ldwm	-64(%sp),%r4\n\
+\n\
+	.section .PARISC.unwind\n\
+	.extern _fini\n\
+	.word	_fini, _end_fini\n\
+	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\n\
+\n\
+/*@_fini_EPILOG_ENDS*/\n\
+\n\
+/*@TRAILER_BEGINS*/\n\
 ");
--- ./linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c.orig	Thu Jun  7 00:28:55 2001
+++ ./linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c	Fri Apr 12 22:25:59 2002
@@ -41,70 +41,70 @@
    and epilogues.  Therefore we write these in assembly to make sure
    they do the right thing.  */
 
-__asm__ ("
-
-#include \"defs.h\"
-
-/*@HEADER_ENDS*/
-
-/*@_init_PROLOG_BEGINS*/
-	.section .init
-	.align 4
-	.globl _init
-	.type _init,@function
-_init:
-	stw	%rp,-20(%sp)
-	stwm	%r4,64(%sp)
-	stw	%r19,-32(%sp)
-	bl	__pthread_initialize_minimal,%rp
-	copy	%r19,%r4	/* delay slot */
-	copy	%r4,%r19
-/*@_init_PROLOG_ENDS*/
-
-/*@_init_EPILOG_BEGINS*/
-/* Here is the tail end of _init.  */
-	.section .init
-	ldw	-84(%sp),%rp
-	copy	%r4,%r19
-	bv	%r0(%rp)
-_end_init:
-	ldwm	-64(%sp),%r4
-
-/* Our very own unwind info, because the assembler can't handle
-   functions split into two or more pieces.  */
-	.section .PARISC.unwind,\"a\",@progbits
-	.extern _init
-	.word	_init, _end_init
-	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
-
-/*@_init_EPILOG_ENDS*/
-
-/*@_fini_PROLOG_BEGINS*/
-	.section .fini
-	.align 4
-	.globl _fini
-	.type _fini,@function
-_fini:
-	stw	%rp,-20(%sp)
-	stwm	%r4,64(%sp)
-	stw	%r19,-32(%sp)
-	copy	%r19,%r4
-/*@_fini_PROLOG_ENDS*/
-
-/*@_fini_EPILOG_BEGINS*/
-	.section .fini
-	ldw	-84(%sp),%rp
-	copy	%r4,%r19
-	bv	%r0(%rp)
-_end_fini:
-	ldwm	-64(%sp),%r4
-
-	.section .PARISC.unwind,\"a\",@progbits
-	.extern _fini
-	.word	_fini, _end_fini
-	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
-
-/*@_fini_EPILOG_ENDS*/
-
-/*@TRAILER_BEGINS*/
+__asm__ ("\n\
+\n\
+#include \"defs.h\"\n\
+\n\
+/*@HEADER_ENDS*/\n\
+\n\
+/*@_init_PROLOG_BEGINS*/\n\
+	.section .init\n\
+	.align 4\n\
+	.globl _init\n\
+	.type _init,@function\n\
+_init:\n\
+	stw	%rp,-20(%sp)\n\
+	stwm	%r4,64(%sp)\n\
+	stw	%r19,-32(%sp)\n\
+	bl	__pthread_initialize_minimal,%rp\n\
+	copy	%r19,%r4	/* delay slot */\n\
+	copy	%r4,%r19\n\
+/*@_init_PROLOG_ENDS*/\n\
+\n\
+/*@_init_EPILOG_BEGINS*/\n\
+/* Here is the tail end of _init.  */\n\
+	.section .init\n\
+	ldw	-84(%sp),%rp\n\
+	copy	%r4,%r19\n\
+	bv	%r0(%rp)\n\
+_end_init:\n\
+	ldwm	-64(%sp),%r4\n\
+\n\
+/* Our very own unwind info, because the assembler can't handle\n\
+   functions split into two or more pieces.  */\n\
+	.section .PARISC.unwind,\"a\",@progbits\n\
+	.extern _init\n\
+	.word	_init, _end_init\n\
+	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\n\
+\n\
+/*@_init_EPILOG_ENDS*/\n\
+\n\
+/*@_fini_PROLOG_BEGINS*/\n\
+	.section .fini\n\
+	.align 4\n\
+	.globl _fini\n\
+	.type _fini,@function\n\
+_fini:\n\
+	stw	%rp,-20(%sp)\n\
+	stwm	%r4,64(%sp)\n\
+	stw	%r19,-32(%sp)\n\
+	copy	%r19,%r4\n\
+/*@_fini_PROLOG_ENDS*/\n\
+\n\
+/*@_fini_EPILOG_BEGINS*/\n\
+	.section .fini\n\
+	ldw	-84(%sp),%rp\n\
+	copy	%r4,%r19\n\
+	bv	%r0(%rp)\n\
+_end_fini:\n\
+	ldwm	-64(%sp),%r4\n\
+\n\
+	.section .PARISC.unwind,\"a\",@progbits\n\
+	.extern _fini\n\
+	.word	_fini, _end_fini\n\
+	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\n\
+\n\
+/*@_fini_EPILOG_ENDS*/\n\
+\n\
+/*@TRAILER_BEGINS*/\n\
 ");



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To: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:14583

Quoting "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>:

> > Hi Dave,
> > 
> > Here am I with something confusing me about glibc building.
> > 
> > In the Carlos O'Donell recipe
> > (http://www.parisc-linux.org/toolchain/PA-Linux-XC-HOWTO-04.html)
> > 
> > It is set "export PATH=$PATH:$DEST/bin"
> > So at configure step it was selected gcc-3.0.4 (the last release for
> hppa-linux box)
> > 
> > Naturally if I put "export PATH=$DEST/bin:$PATH", the configure of
> glibc select
> > (for me well) gcc-3.2.
> > 
> > What is the right way? (for me the second)
> > 
> > Thanks for more help,
> >     Joel
> >
> 
> The document describes building a cross-compiler for non-hppa->hppa. 
> Where gcc would be prefaced with 'hppa-linux' and might be
> the only such executable on the system. Obviously if you have multiple
> toolchains on your path the order should be '$DEST/bin:$PATH'.

Ok it is clear.

> 
> Happily this document also serves as a 'build the toolchain' document
> :)
> 
> I'll update that bit, make some spelling mistakes and email Grant.
> 

I just also notice that the glibc release is now 2.2.5 which is extracted as
glibc-2.2.5.orig (so just after "Now onto glibc:" 
    cd glibc-2.2.4
would be:
    cd glibc-2.2.5.orig)

    
Thanks for your attention and your great job,
    Joel

-------------------------------------------------
This mail sent through Tiscali Webmail (http://webmail.tiscali.be)



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From: "Kenneth Westelinck" <kennywest1@hotmail.com>
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Subject: [parisc-linux] not freeing initmem and power button
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Xref: news.gmane.org gmane.linux.ports.parisc:14584

Hi all,

After a few months of gathering dust, I finally decided to upgrade my 
712/60. It was initially installed with the old 0.9.2 ISO, and upgraded with 
a more recent kernel (I think it was 2.4.9). This weekend I did an apt-get 
update, apt-get upgrade to upgrade my system (woody). I also compiled a new 
kernel (2.4.18-pa16) for this system. The system boots fine and as far as I 
can see, all applications "survived" the upgrade. The only problem I am 
experiencing are 2 _bugs_ mentionned a while ago in the mailing list.

- When booting the kernel reports: NOT FREEING INITMEM. I found this in the 
mailing list, but I couldn't find a solution. Is there any solution for this 
problem? I don't think I had this when running the old kernel.

- Second, when I push the power button, the system powers off without doing 
a clean shutdown. When running the 2.4.9 kernel the machine didn't halt when 
pushing this button. Only typing in "shutdown -h now" did the trick. I 
prefer this behaviour. In this case a normal user cannot shutdown the 
machine, except by pulling the power cord. Can someone please tell me which 
file to edit/tweak to give back this
old behaviour?

Many thanks in advance.


regards,

Kenneth

enjoy life, enjoy linux,

Kenneth

_________________________________________________________________
Download MSN Explorer gratis van http://explorer.msn.nl/intl.asp.




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Subject: Re: [parisc-linux] not freeing initmem and power button
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Xref: news.gmane.org gmane.linux.ports.parisc:14585

On Monday 15 April 2002 10:41, Kenneth Westelinck wrote:
> - When booting the kernel reports: NOT FREEING INITMEM. I found this in the
> mailing list, but I couldn't find a solution. Is there any solution for
> this problem? I don't think I had this when running the old kernel.

Older kernels just didn't reported it, but all had this problem.
We're not freeing the memory yet, since we still have one or more 
__init or __initdata too much in our kernel. Just ignore it for now.

> - Second, when I push the power button, the system powers off without doing
> a clean shutdown. When running the 2.4.9 kernel the machine didn't halt
> when pushing this button. Only typing in "shutdown -h now" did the trick. I
> prefer this behaviour. In this case a normal user cannot shutdown the
> machine, except by pulling the power cord. Can someone please tell me which
> file to edit/tweak to give back this old behaviour?

The power-button should work if you update to a newer kernel (>= 2.4.18-pa19).

Helge




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From: "Kenneth Westelinck" <kennywest1@hotmail.com>
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Subject: Re: [parisc-linux] not freeing initmem and power button
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>The power-button should work if you update to a newer kernel (>= 
>2.4.18-pa19).

Cool, does this mean: if I push the button, the system will do a clean 
shutdown? Or if I push the button, nothing happens?
Is there an easy way to disable this. I mean, I only want to shutdown the 
machine using the command line (call me a freak ;)).
Thanks.

regards,

Kenneth

_________________________________________________________________
Download MSN Explorer gratis van http://explorer.msn.nl/intl.asp.




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Newsgroups: gmane.linux.ports.parisc
Subject: Congratulations again! :-) [was:Re: [parisc-linux] Successful installation and keyboard problems]
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helge.deller@sap.com (Helge Deller) writes:
> 
> Please retry with a recent kernel.
> 
> On Tuesday 09 April 2002 19:42, Paul Seelig wrote:
> > Because of NeXTSTEP i've once gotten rid of my HIL keyboard and mouse,
> > replacing both with standard PS/2 variants.  Unfortunately, at the
> > console the PS/2 keyboard (with German layout) chokes on pressing the
> > key containing the characters '>', '<' and '|' (on a german keyboard
> > the key between Shift and Y), only telling me:
> >
> >      keyboard: unrecognized scancode (7f) ignored
>
Upgrading to kernel 2.4.18 solved the keyboard problem. PPPOE now runs
fine as well and permitted a full "apt-get dist-upgrade" from Debian's
unstable.  XFree86 is up and running too but this machine is no fun
using with it due to the limiting 8-bit fbdev display and the overall
slowness of the machine.  Reminds me somewhat of my old i486DX/33
although the overall niceness of the 715/64 definitely beats it.
NeXTSTEP 3.3 and HP/UX 10.20 are way faster on the same hardware.
Above all, NeXTSTEP is able to use far larger color space (16-bit or
more, i'd have to look).  Somehow my usual iP233MMX feels so much
faster than before... ;-)

Fortunately Debian is truly Free Software[TM]. :-)

                                 Thanks a lot! *8^)
-- 
     ------------ Paul Seelig <pseelig@uni-mainz.de> --------------
   African Music Archive - Institute for Ethnology and Africa Studies
   Johannes Gutenberg-University   -  Forum 6  -  55099 Mainz/Germany
     ----------------- http://ntama.uni-mainz.de ------------------



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Subject: Re: [parisc-linux] not freeing initmem and power button
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On Monday 15 April 2002 13:59, Kenneth Westelinck wrote:
> >The power-button should work if you update to a newer kernel (>=
> >2.4.18-pa19).
>
> Cool, does this mean: if I push the button, the system will do a clean
> shutdown? Or if I push the button, nothing happens?

It should shutdown cleanly and power-off afterwards.

> Is there an easy way to disable this. 

Hmm, not yet. But thanks for the idea, maybe I can add this....

> I mean, I only want to shutdown the
> machine using the command line (call me a freak ;)).
> Thanks.

read
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-April/016052.html

Helge



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Subject: Re: [parisc-linux] Patch to debina glibc-2.2.5 for gcc-3.2 build (was GCC support for dwarf2)
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Hi Dave,

Could you send me you patch as an attached file or put it somewhere
(I try to grab page but "patch" failed)

Thanks in advance for additional help,
    Joel


-------------------------------------------------
This mail sent through Tiscali Webmail (http://webmail.tiscali.be)



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Subject: Re: [parisc-linux] not freeing initmem and power button
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On Mon, Apr 15, 2002 at 12:32:46PM +0200, Helge Deller wrote:
> Older kernels just didn't reported it, but all had this problem.
> We're not freeing the memory yet, since we still have one or more 
> __init or __initdata too much in our kernel. Just ignore it for now.

Do you recall what config failed when we did try to free the memory?  I
tested recently with B180 and A500, both worked fine with freeing of
memory enabled.  IIRC the origianl problem was that init crashed on
boot...

Cheers,
  Richard




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On Monday 15 April 2002 19:35, Richard Hirst wrote:
> On Mon, Apr 15, 2002 at 12:32:46PM +0200, Helge Deller wrote:
> > Older kernels just didn't reported it, but all had this problem.
> > We're not freeing the memory yet, since we still have one or more
> > __init or __initdata too much in our kernel. Just ignore it for now.
>
> Do you recall what config failed when we did try to free the memory?  I
> tested recently with B180 and A500, both worked fine with freeing of
> memory enabled.  IIRC the origianl problem was that init crashed on
> boot...
>
> Cheers,
>   Richard

Hi Richard,

unfortunately I don't know which config it was. AFAIR it also never 
happened to me, but it did for grant or bame. Maybe they know more ?

Greetings,
Helge
 



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Subject: [parisc-linux] 2.4.18-pa17 and pppd 2.4.1 : Resource temporarily unavaiable
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Hi,

I have a 715/100 with kernel 2.4.18-pa17 and pppd 2.4.1.
When pppd is startet:

pppd[314]: read: Resource temporarily unavailable
pppd[314]: read /dev/ppp: Resource temporarily unavailable

I have found something about this in the Archive and
created a dummy hotplug script, but this changes nothing.
The connecting works but is very slow (high latency, unstable).
The log ist flooded with this message.

ppp_generic, ppp_async, etc. are modules.

Have somebody a suggestion?

Thanks,
Sebastian
 



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> On Mon, Apr 15, 2002 at 12:32:46PM +0200, Helge Deller wrote:
> > Older kernels just didn't reported it, but all had this problem.
> > We're not freeing the memory yet, since we still have one or more
> > __init or __initdata too much in our kernel. Just ignore it for now.

FYI, I've re-enabled the freeing of boot memory in the CVS version
of kernel 2.4.18-pa20 and am very interested in getting your feedback.
But, since this change _could_ do anything to your system, please don't use 
it if you have important data on your disks (or at least without having 
a backup somewhere).

In case you see any boot-related or other strange problems with this kernel, 
please let me know as soon as possible and remember to attach your .config file.
I've tested this kernel on all my machines and haven't had any problems yet, so
I personally think it's safe to use this kernel. But in any case: You've been warned :-)

Thanks,
Helge



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On Monday 15 April 2002 13:59, Kenneth Westelinck wrote:
> >The power-button should work if you update to a newer kernel (>=
> >2.4.18-pa19).
>
> Cool, does this mean: if I push the button, the system will do a clean
> shutdown? Or if I push the button, nothing happens?
>
> Is there an easy way to disable this. 

In Kernel 2.4.18-pa20 I've added a /proc/sys/kernel/power
procfs entry which lets you enable/disable the soft power switch 
at runtime:

# echo 0 > /proc/sys/kernel/power		# disables the power switch
# echo 1 > /proc/sys/kernel/power		# enables the power switch

# cat /proc/sys/kernel/power 
Software power switch support: enabled (1)

Or, you could of course also use sysctl program/interface.

Greetings,
Helge




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> > Cool, does this mean: if I push the button, the system will do a clean
> > shutdown? Or if I push the button, nothing happens?
>
>It should shutdown cleanly and power-off afterwards.
>
> > Is there an easy way to disable this.
>
>Hmm, not yet. But thanks for the idea, maybe I can add this....
Yeah, some patch or additional option when doing "make menuconfig" would be 
nice.

Anyway thank you very much for you'll help. I'll try to compile a new kernel 
tonight ;)


_________________________________________________________________
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http://messenger.msn.nl




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Xref: news.gmane.org gmane.linux.ports.parisc:14596

I'll try this tonight. Thanks.


>From: Helge Deller <deller@gmx.de>
>To: "Kenneth Westelinck" <kennywest1@hotmail.com>, 
>parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] not freeing initmem and power button
>Date: Tue, 16 Apr 2002 02:30:39 +0200
>
>On Monday 15 April 2002 13:59, Kenneth Westelinck wrote:
> > >The power-button should work if you update to a newer kernel (>=
> > >2.4.18-pa19).
> >
> > Cool, does this mean: if I push the button, the system will do a clean
> > shutdown? Or if I push the button, nothing happens?
> >
> > Is there an easy way to disable this.
>
>In Kernel 2.4.18-pa20 I've added a /proc/sys/kernel/power
>procfs entry which lets you enable/disable the soft power switch
>at runtime:
>
># echo 0 > /proc/sys/kernel/power		# disables the power switch
># echo 1 > /proc/sys/kernel/power		# enables the power switch
>
># cat /proc/sys/kernel/power
>Software power switch support: enabled (1)
>
>Or, you could of course also use sysctl program/interface.
>
>Greetings,
>Helge
>


enjoy life, enjoy linux,

Kenneth

_________________________________________________________________
Download MSN Explorer gratis van http://explorer.msn.nl/intl.asp.




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             <B940662D7541D6118ED300065B1A223CA01903@siepor43.siemens.pt> 
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> Dear Sirs,
> =20
> I was trying to get the  sources from your site for release rel0_9 but =
> your
> server displayed the following exceptions (see below):
> Can you explain me how can I get the Linux sources for this version or =
> any
> other?

Hmmm, I see this is not obvious from our main web site...

Daily kernel source snapshots are available as tarballs from
http://ftp.parisc-linux.org/cvs

		    --or--

Follow the "ANONYMOUS CVS" setup instruction at http://cvs.parisc-linux.org/
and then use the command:

	cvs co -rrel0_9 linux

	           ------

Beware that rel0_9 is nearly a year old and generally it is better to
simply get the latest version either from the tarball or

	cvs co linux

I don't think we will support downloading sources through the
'viewcvs' web GUI.

	-Paul Bame

> =20
> Thanks in advance
> =20
> =20
> The explorer address was:
> http://cvs.parisc-linux.org/linux/linux.tar.gz?tarball=3D1
> <http://cvs.parisc-linux.org/linux/linux.tar.gz?tarball=3D1&only_with_ta=
> g=3Drel0
> _9> &only_with_tag=3Drel0_9
> 
> 
> 
> =20
> 
> =20
> 
> Python Exception Occurred
> 
>  [LOGO] <http://cvs.parisc-linux.org/images/htux.gif> =09
> Traceback (innermost last):
> 
>   File "/usr/share/viewcvs/lib/viewcvs.py", line 2516, in run_cgi
> 
>     main()
> 
>   File "/usr/share/viewcvs/lib/viewcvs.py", line 2502, in main
> 
>     download_tarball(request)
> 
>   File "/usr/share/viewcvs/lib/viewcvs.py", line 2424, in =
> download_tarball
> 
>     generate_tarball(fp, os.path.basename(directory), directory, tag)
> 
>   File "/usr/share/viewcvs/lib/viewcvs.py", line 2368, in =
> generate_tarball
> 
>     for file, pathname, isdir in get_file_data(directory + '/Attic'):
> 
>   File "/usr/share/viewcvs/lib/viewcvs.py", line 635, in get_file_data
> 
>     files =3D os.listdir(full_name)
> 
> OSError: [Errno 2] No such file or directory
> 
> 
> 
> 
> =20
> =20
> =20
> =20
> =20
> =20
> Best Regards,
> =AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=AD=
> =AD=AD=AD=AD=AD_________________________________________
> Manuel Fernandes
> Siemens SA - Portugal
> IC Information and Communications=20
> ON- Optical Networks
> Tel: +351 21 424 2081
> e-mail:  <mailto:manuel.fernandes@lis2.siemens.pt>
> manuel.fernandes@lis2.siemens.pt
> =20
> =20




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Xref: news.gmane.org gmane.linux.ports.parisc:14598

Hi all,

Here is some trace I get from the kernel (2.4.18-pa19) make (after a make
oldconfig):
...
gcc -D__KERNEL__ -I/GNU-Dev/parisc-linux/src/linux/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing
-fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1
-mschedule=7100   -DKBUILD_BASENAME=driver  -c -o driver.o driver.c
driver.c: In function `handle_fpe':
driver.c:103: warning: implicit declaration of function `decode_fpu'
gcc -D__KERNEL__ -I/GNU-Dev/parisc-linux/src/linux/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing
-fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1
-mschedule=7100   -DKBUILD_BASENAME=decode_exc  -c -o decode_exc.o decode_exc.c
decode_exc.c: In function `decode_fpu':
decode_exc.c:168: warning: implicit declaration of function `fpudispatch'
decode_exc.c:239: warning: implicit declaration of function `sgl_denormalize'
decode_exc.c:251: warning: implicit declaration of function `dbl_denormalize'
decode_exc.c:304: warning: suggest parentheses around arithmetic in operand of |
decode_exc.c:350: warning: implicit declaration of function `printk'
gcc -D__KERNEL__ -I/GNU-Dev/parisc-linux/src/linux/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing
-fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1
-mschedule=7100   -DKBUILD_BASENAME=fpudispatch  -c -o fpudispatch.o fpudispatch.c
fpudispatch.c: In function `decode_0c':
fpudispatch.c:365: warning: implicit declaration of function `sgl_fsqrt'
fpudispatch.c:368: warning: implicit declaration of function `dbl_fsqrt'
fpudispatch.c:377: warning: implicit declaration of function `sgl_frnd'
fpudispatch.c:380: warning: implicit declaration of function `dbl_frnd'
fpudispatch.c:409: warning: implicit declaration of function `sgl_to_dbl_fcnvff'
fpudispatch.c:412: warning: implicit declaration of function `dbl_to_sgl_fcnvff'
fpudispatch.c:420: warning: implicit declaration of function `sgl_to_sgl_fcnvxf'
fpudispatch.c:423: warning: implicit declaration of function `sgl_to_dbl_fcnvxf'
fpudispatch.c:426: warning: implicit declaration of function `dbl_to_sgl_fcnvxf'
fpudispatch.c:429: warning: implicit declaration of function `dbl_to_dbl_fcnvxf'
fpudispatch.c:435: warning: implicit declaration of function `sgl_to_sgl_fcnvfx'
fpudispatch.c:438: warning: implicit declaration of function `sgl_to_dbl_fcnvfx'
fpudispatch.c:441: warning: implicit declaration of function `dbl_to_sgl_fcnvfx'
fpudispatch.c:444: warning: implicit declaration of function `dbl_to_dbl_fcnvfx'
fpudispatch.c:450: warning: implicit declaration of function `sgl_to_sgl_fcnvfxt'
fpudispatch.c:453: warning: implicit declaration of function `sgl_to_dbl_fcnvfxt'
fpudispatch.c:456: warning: implicit declaration of function `dbl_to_sgl_fcnvfxt'
fpudispatch.c:459: warning: implicit declaration of function `dbl_to_dbl_fcnvfxt'
fpudispatch.c:465: warning: implicit declaration of function `sgl_to_sgl_fcnvuf'
fpudispatch.c:468: warning: implicit declaration of function `sgl_to_dbl_fcnvuf'
fpudispatch.c:471: warning: implicit declaration of function `dbl_to_sgl_fcnvuf'
fpudispatch.c:474: warning: implicit declaration of function `dbl_to_dbl_fcnvuf'
fpudispatch.c:480: warning: implicit declaration of function `sgl_to_sgl_fcnvfu'
fpudispatch.c:483: warning: implicit declaration of function `sgl_to_dbl_fcnvfu'
fpudispatch.c:486: warning: implicit declaration of function `dbl_to_sgl_fcnvfu'
fpudispatch.c:489: warning: implicit declaration of function `dbl_to_dbl_fcnvfu'
fpudispatch.c:495: warning: implicit declaration of function `sgl_to_sgl_fcnvfut'
fpudispatch.c:498: warning: implicit declaration of function `sgl_to_dbl_fcnvfut'
fpudispatch.c:501: warning: implicit declaration of function `dbl_to_sgl_fcnvfut'
fpudispatch.c:504: warning: implicit declaration of function `dbl_to_dbl_fcnvfut'
fpudispatch.c:540: warning: implicit declaration of function `sgl_fcmp'
fpudispatch.c:547: warning: implicit declaration of function `dbl_fcmp'
fpudispatch.c:622: warning: implicit declaration of function `sgl_fadd'
fpudispatch.c:625: warning: implicit declaration of function `dbl_fadd'
fpudispatch.c:634: warning: implicit declaration of function `sgl_fsub'
fpudispatch.c:637: warning: implicit declaration of function `dbl_fsub'
fpudispatch.c:646: warning: implicit declaration of function `sgl_fmpy'
fpudispatch.c:649: warning: implicit declaration of function `dbl_fmpy'
fpudispatch.c:658: warning: implicit declaration of function `sgl_fdiv'
fpudispatch.c:661: warning: implicit declaration of function `dbl_fdiv'
fpudispatch.c:670: warning: implicit declaration of function `sgl_frem'
fpudispatch.c:673: warning: implicit declaration of function `dbl_frem'
fpudispatch.c: In function `decode_2e':
fpudispatch.c:1354: warning: implicit declaration of function `dbl_fmpynfadd'
fpudispatch.c:1357: warning: implicit declaration of function `dbl_fmpyfadd'
fpudispatch.c:1376: warning: implicit declaration of function `sgl_fmpynfadd'
fpudispatch.c:1379: warning: implicit declaration of function `sgl_fmpyfadd'
...

I do think that lacks a header to define some function.

Thanks in advance for help,
    Joel


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On Wed, Apr 17, 2002 at 11:02:54AM +0200, joel.soete@freebel.net wrote:
> Here is some trace I get from the kernel (2.4.18-pa19) make (after a make
> oldconfig):
...
> I do think that lacks a header to define some function.

this code is crufty old HPUX stuff... the warnings have been there
basically forever, and nobody's bothered to fix them.  Nobody's found a
problem either :-) If you want to eliminate these warnings by declaring
everything properly, feel free to send a patch, but I don't think it's
very important.

-- 
Revolutions do not require corporate support.



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Subject: Re: [parisc-linux] Missing beep... and music too
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For machines with the i8042 SDC tone generator (and which do not
currently have a HIL keyboard in use, as the new drivers for that
are not checked into CVS yet) implementing console beeping support using
the new hpd_sdc module should be trivial.  If anyone is interested in
doing so, contact me and I'll give some pointers.

(Sorry for the delay on HIL stuff BTW, I've just been too busy
lately to tuck all the corners and check it in.)

--
Brian S. Julin






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> On Wed, Apr 17, 2002 at 11:02:54AM +0200, joel.soete@freebel.net wrote:
> > Here is some trace I get from the kernel (2.4.18-pa19) make (after a make
> > oldconfig):
> ...
> > I do think that lacks a header to define some function.
> 
> this code is crufty old HPUX stuff... the warnings have been there
> basically forever, and nobody's bothered to fix them.  Nobody's found a
> problem either :-) If you want to eliminate these warnings by declaring
> everything properly, feel free to send a patch, but I don't think it's
> very important.

Here's the README in the math-emu directory which describes why we
leave the warnings in:

"All files except driver.c are snapshots from the HP-UX kernel.  They've
 been modified as little as possible.  Even though they don't fit the
 Linux coding style, please leave them in their funny format just in case
 someone in the future, with access to HP-UX source code, is generous
 enough to update our copies with later changes from HP-UX -- it'll
 make their 'diff' job easier if our code is relatively unmodified.



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On Wed, Apr 17, 2002 at 08:42:16AM -0600, Paul Bame wrote:
> Here's the README in the math-emu directory which describes why we
> leave the warnings in:
> 
> "All files except driver.c are snapshots from the HP-UX kernel.  They've
>  been modified as little as possible.  Even though they don't fit the
>  Linux coding style, please leave them in their funny format just in case
>  someone in the future, with access to HP-UX source code, is generous
>  enough to update our copies with later changes from HP-UX -- it'll
>  make their 'diff' job easier if our code is relatively unmodified.

Sure, but I don't think adding

#include "math-emu.h"

to each file will make anyone's life more difficult.  Nor even

float sfod(float, float);
float ssinf(double);
...

-- 
Revolutions do not require corporate support.



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Quoting Matthew Wilcox <willy@debian.org>:

> On Wed, Apr 17, 2002 at 11:02:54AM +0200, joel.soete@freebel.net wrote:
> > Here is some trace I get from the kernel (2.4.18-pa19) make (after a
> make
> > oldconfig):
> ...
> > I do think that lacks a header to define some function.
> 
> this code is crufty old HPUX stuff... the warnings have been there
> basically forever, and nobody's bothered to fix them.  Nobody's found a
> problem either :-) If you want to eliminate these warnings by declaring
> everything properly, feel free to send a patch, but I don't think it's
> very important.

Thanks for info.

In fact I test to compile this kernel with gcc-3.2 (snapshot) and severall time
it failled and I suspect wrongly that it could be the cause but it is certainly
somewhere else (don't rememnber exactly). Never the less  I will try to make
this patch.

Joel


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hello all,

i've seen a bit of discussion lately about people using the gcc 3.2
snapshot on parisc linux.  i would like to know if anyone has provided or
will provide a guide to getting it going on parisc linux at all?

are you talking about the mainstream gcc 3.2 from the gcc cvs development
tree?  i haven't been able to compile that at all.  i tried with my old
gcc 3.0.2 on my parisc box, and i also tried to cross compile it with the
latest x86 cross compiler from the ftp.parisc-linux.org.

when i try to compile it i'm overcome with internal compiler errors, so i
guess with a newer or better compiler i could build it but of course there
is the cache-22.

thanks,
james w. mcclain




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> are you talking about the mainstream gcc 3.2 from the gcc cvs development
> tree?  i haven't been able to compile that at all.  i tried with my old

Yes.

> gcc 3.0.2 on my parisc box, and i also tried to cross compile it with the
> latest x86 cross compiler from the ftp.parisc-linux.org.

The trick as I recall is to compile stage1 with -O2.  You should also
build cvs binutils and install it first.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> i've seen a bit of discussion lately about people using the gcc 3.2
> snapshot on parisc linux.  i would like to know if anyone has provided or
> will provide a guide to getting it going on parisc linux at all?

i plan to build unofficial debian packages of these tools in the near
future.

randolph



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I have just bought an old 712/60 yesterday, download the latest ISO and 
installed it .

Quite impressed since I usually run Mandrake 8.1 on Intel equipmnet.

I fixed the XF86config to get the X Window server working with the frame 
buffer (after having to build fbset from source to find out what my setting 
should be). And sorted the mouse out.

The 712/60 is a little slow with gnome so I want to use Blackbox.

Does anyone have any experience with getting It to compile and install as I 
get some errors .

configure seems ok,

but the main make ends in

make[2]: *** [BaseDisplay.o] Error 1
make[2]: Leaving Directory `/home/robin/blackbox-0.61.1/src`
make[1]: *** [all-recursive] Error 1
make[1]: Leaving Directory `/home/robin/blackbox-0.61.1
make: *** [all-recursive-am] Error 2

Not being the worlds greatest programer I have no Idea where to start.

Anyone got it installed?

Thanks

Robin.




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On Thu, Apr 18, 2002 at 12:31:00PM +0100, s-clarob@st-aidans.cumbria.sch.uk wrote:

> Does anyone have any experience with getting It to compile and install as I 
> get some errors .

apt-get install blackbox

Remember, this is Debian, not Mandrake.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
(S)he's standing behind you, holding an axe. 




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Subject: [parisc-linux] Some old and new questions on Linux drivers, PDC console,etc..
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Hello Ryan,

after long time, I want to cantact you again.

First of all a question. Those days you added for me the config stuff
for the PDC console driver for the E55 and other non-standard machines.
I was not able to do this, and today I also not able to do so.

Can you give me a short introduction, where I have to add what, which
are the dependencies, etc, etc, etc....
In the future I also want to have that skills.

What the status of your driver development of the MUX, or SCSI ?
Have you find the SCSI sources (MACH kernel) ?

Would be nice to hear from you

With friendly regards
Christoph P.


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Xref: news.gmane.org gmane.linux.ports.parisc:14610

I've uploaded an experimental gcc-3.2 debian package to:

ftp://ftp.parisc-linux.org/unofficial-debs/gcc-3.2_20020417-1_hppa.deb 

for people who feel adventurous and wants to try. As the name suggests
it's built from gcc-3.2 cvs from two days ago. The deb is unfortunately
quite large (26M) because it also contains binutils bits and has
c/c++/fortran/objc compilers enabled.

The regression test results are looking quite good, and at least on the
two cases I've tried the functions-sections problems are fixed.

The package installs into /usr/local, and I want to stress here
that these are only for experimental use and are not part of the
official debian release.

Having said that, try them out and let us know how it works out!

Last but not least, thanks Dave for all your efforts! gcc-3.2 looks
really quite a bit better than 3.0.x

randolph




From - Thu Nov 08 21:22:28 2018
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From: Grant Grundler <grundler@dsl2.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] not freeing initmem and power button
Date: Fri, 19 Apr 2002 23:47:41 -0600
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References: <F39D7BsZXbLvwa2SydH0001aa92@hotmail.com> <200204151232.46311.helge.deller@sap.com> <20020415173544.GO4971@sleepie.demon.co.uk>  <200204152123.19619.deller@gmx.de>
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Cc: Richard Hirst <rhirst@linuxcare.com>,
	parisc-linux@lists.parisc-linux.org
To: Helge Deller <deller@gmx.de>
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Helge Deller wrote:
> Richard Hirst wrote:
> > Do you recall what config failed when we did try to free the memory?  I
> > tested recently with B180 and A500, both worked fine with freeing of
> > memory enabled.  IIRC the origianl problem was that init crashed on
> > boot...
...
> unfortunately I don't know which config it was. AFAIR it also never 
> happened to me, but it did for grant or bame. Maybe they know more ?

I don't recall offhand. If it's not in the mail archives, my configs
are stored in the tarballs I upload whenever I build kernels specifically
for C3000 (32-bit) or A500 (64-bit). Those tarballs are on
	ftp://ftp.parisc-linux.org/kernels/c3000 or a500

grant



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From: "kenneth westelinck" <kennywest1@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] not freeing initmem and power button
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This is a multi-part message in MIME format.

------=_NextPart_000_003E_01C1E882.C87CF730
Content-Type: text/plain;
	charset="iso-8859-1"
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Hi again,

Okay, I had a busy week and didn't get any chance to compile a new kernel.
Today I've managed to get the 2.4.18-pa20 up and running, but the power
button is still not working as expected. Pressing the button with "Software
power switch support: enabled" powers down the machine instantly (as
before). When I disable the powerswitch with "sysctl -w kernel/power=0" I'm
having the same result. Am I missing something?
Attached to this mail you can find my .config - file
Thanks.


regards,

Kenneth

----- Original Message -----
From: "Kenneth Westelinck" <kennywest1@hotmail.com>
To: <deller@gmx.de>; <parisc-linux@lists.parisc-linux.org>
Sent: Tuesday, April 16, 2002 10:27 AM
Subject: Re: [parisc-linux] not freeing initmem and power button


> I'll try this tonight. Thanks.
>
>
> >From: Helge Deller <deller@gmx.de>
> >To: "Kenneth Westelinck" <kennywest1@hotmail.com>,
> >parisc-linux@lists.parisc-linux.org
> >Subject: Re: [parisc-linux] not freeing initmem and power button
> >Date: Tue, 16 Apr 2002 02:30:39 +0200
> >
> >On Monday 15 April 2002 13:59, Kenneth Westelinck wrote:
> > > >The power-button should work if you update to a newer kernel (>=
> > > >2.4.18-pa19).
> > >
> > > Cool, does this mean: if I push the button, the system will do a clean
> > > shutdown? Or if I push the button, nothing happens?
> > >
> > > Is there an easy way to disable this.
> >
> >In Kernel 2.4.18-pa20 I've added a /proc/sys/kernel/power
> >procfs entry which lets you enable/disable the soft power switch
> >at runtime:
> >
> ># echo 0 > /proc/sys/kernel/power # disables the power switch
> ># echo 1 > /proc/sys/kernel/power # enables the power switch
> >
> ># cat /proc/sys/kernel/power
> >Software power switch support: enabled (1)
> >
> >Or, you could of course also use sysctl program/interface.
> >
> >Greetings,
> >Helge
> >
>
>
> enjoy life, enjoy linux,
>
> Kenneth
>
> _________________________________________________________________
> Download MSN Explorer gratis van http://explorer.msn.nl/intl.asp.
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>

------=_NextPart_000_003E_01C1E882.C87CF730
Content-Type: application/octet-stream;
	name=".config"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename=".config"

#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
CONFIG_MODULES=y
# CONFIG_MODVERSIONS is not set
CONFIG_KMOD=y

#
# Processor type
#
CONFIG_PA7100=y
# CONFIG_PA7200 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA8X00 is not set
CONFIG_PA11=y

#
# General options
#
# CONFIG_SMP is not set
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_KWDB is not set
# CONFIG_IOMMU_CCIO is not set
CONFIG_GSC=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
# CONFIG_EISA is not set
# CONFIG_ISA is not set
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_SUPERIO=y
CONFIG_PCI_NAMES=y

#
# General setup
#
# CONFIG_HOTPLUG is not set
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Parallel port support
#
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_PARPORT_PC_CML1=y
# CONFIG_PARPORT_SERIAL is not set
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_AMIGA is not set
# CONFIG_PARPORT_MFC3 is not set
# CONFIG_PARPORT_ATARI is not set
CONFIG_PARPORT_GSC=y
# CONFIG_PARPORT_SUNBPP is not set
# CONFIG_PARPORT_OTHER is not set
# CONFIG_PARPORT_1284 is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_LOOP=y
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=y
# CONFIG_NETFILTER is not set
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# ATA/IDE/MFM/RLL support
#
# CONFIG_IDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
CONFIG_53C700_USE_CONSISTENT=y
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_NCR53C8XX is not set
# CONFIG_SCSI_SYM53C8XX is not set
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=y
# CONFIG_SUNLANCE is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_NET_PCI is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Input core support
#
# CONFIG_INPUT is not set
# CONFIG_INPUT_KEYBDEV is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_HIL=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=y
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_PC110_PAD is not set

#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
CONFIG_QUOTA=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_JBD_DEBUG is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
# CONFIG_RAMFS is not set
# CONFIG_ISO9660_FS is not set
# CONFIG_JOLIET is not set
# CONFIG_ZISOFS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_INTERMEZZO_FS is not set
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_ROOT_NFS is not set
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
# CONFIG_ZISOFS_FS is not set
# CONFIG_ZLIB_FS_INFLATE is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
# CONFIG_NLS is not set

#
# Console drivers
#

#
# Frame-buffer support
#
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FB_RIVA is not set
# CONFIG_FB_CLGEN is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
CONFIG_FB_STI=y
# CONFIG_FB_MATROX is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FBCON_ADVANCED is not set
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB32=y
CONFIG_FBCON_STI=y
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set
# CONFIG_FBCON_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y

#
# Sound
#
CONFIG_SOUND=y
# CONFIG_SOUND_BT878 is not set
# CONFIG_SOUND_CMPCI is not set
# CONFIG_SOUND_EMU10K1 is not set
# CONFIG_MIDI_EMU10K1 is not set
# CONFIG_SOUND_FUSION is not set
# CONFIG_SOUND_CS4281 is not set
# CONFIG_SOUND_ES1370 is not set
# CONFIG_SOUND_ES1371 is not set
# CONFIG_SOUND_ESSSOLO1 is not set
# CONFIG_SOUND_MAESTRO is not set
# CONFIG_SOUND_MAESTRO3 is not set
# CONFIG_SOUND_ICH is not set
CONFIG_SOUND_HARMONY=y
# CONFIG_SOUND_RME96XX is not set
# CONFIG_SOUND_SONICVIBES is not set
# CONFIG_SOUND_TRIDENT is not set
# CONFIG_SOUND_MSNDCLAS is not set
# CONFIG_SOUND_MSNDPIN is not set
# CONFIG_SOUND_VIA82CXXX is not set
# CONFIG_MIDI_VIA82CXXX is not set
# CONFIG_SOUND_OSS is not set
# CONFIG_SOUND_TVMIXER is not set

#
# USB support
#
# CONFIG_USB is not set
# CONFIG_USB_UHCI is not set
# CONFIG_USB_UHCI_ALT is not set
# CONFIG_USB_OHCI is not set
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_BLUETOOTH is not set
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_HP8200e is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_DC2XX is not set
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_SCANNER is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_HPUSBSCSI is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_CATC is not set
# CONFIG_USB_CDCETHER is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_USS720 is not set

#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_EMPEG is not set
# CONFIG_USB_SERIAL_FTDI_SIO is not set
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IPAQ is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XA is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XB is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_PL2303 is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OMNINET is not set
# CONFIG_USB_RIO500 is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

------=_NextPart_000_003E_01C1E882.C87CF730--



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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] not freeing initmem and power button
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Xref: news.gmane.org gmane.linux.ports.parisc:14613

Hi Kenneth,

I think the problem is your 712/60, which (maybe) doesn't support 
soft-power-off. 
Please look into your dmesg, there you should see one of:
1. Gecko-style soft power switch enabled,
2. Soft power switch support not available.
3. Soft power switch enabled, polling @ 0x<addr>

I suppose your 712/60 will give you #2 and that's why it will not work.

Helge

On Saturday 20 April 2002 15:48, kenneth westelinck wrote:
> Hi again,
>
> Okay, I had a busy week and didn't get any chance to compile a new kernel.
> Today I've managed to get the 2.4.18-pa20 up and running, but the power
> button is still not working as expected. Pressing the button with "Software
> power switch support: enabled" powers down the machine instantly (as
> before). When I disable the powerswitch with "sysctl -w kernel/power=0" I'm
> having the same result. Am I missing something?
> Attached to this mail you can find my .config - file
> Thanks.
>
>
> regards,
>
> Kenneth




From - Thu Nov 08 21:22:28 2018
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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Cross Compiler HOWTO - v1.2 (GCC 3.1 updates and more)
Date: Sat, 20 Apr 2002 12:02:48 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:14614

Parisc, Debian-hppa,

-----------------------------------------
PARISC-Linux Cross Compiler HOWTO - v1.2 
-----------------------------------------

When you're 715/50 just can't compile fast enough...

http://www.baldric.uwo.ca/~carlos/HOWTO-Parisc/

- Updated examples.
- Updated many things.
- Printable pdf version online (as requested by some people).
- GCC section includes info on building GCC 3.1 from upstream CVS.
- Fixed tpyos.

I've tested this from start to end and it's getting really easy
to roll your own tool-chain! Thank go to all the hard-working people
who make it happen :)

I tested:

GCC 3.0.2 20010905
Binutils 2.12.90.0.4-1

To build a cross-compiler from:

GCC 3.1 20020418
Binutils 2.12.90.0.1-4 (latest in debian pool)
Glibc 2.2.5-4 (latest in debian pool)

-----

If you would like to link against something then link against:
http://www.baldric.uwo.ca/HOWTO/

Which is where the document will reside soon.

You can grab a tarball of the directory at:
http://www.baldric.uwo.ca/~carlos/HOWTO-Parisc/HOWTO-Parisc.tar.gz

-----

Many thanks to Dave, Randolph and Willy who tolerate my incessant
24/7 learning... :)

Cheers,
Carlos.




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From: "kenneth westelinck" <kennywest1@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] not freeing initmem and power button
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Nope, soft power-off is enabled as you can see in my attached dmesg. BTW,
when using the old 2.4.9 kernel nothing happened when pressing this switch.

----- Original Message -----
From: "Helge Deller" <deller@gmx.de>
To: "kenneth westelinck" <kennywest1@hotmail.com>;
<parisc-linux@lists.parisc-linux.org>
Sent: Saturday, April 20, 2002 5:51 PM
Subject: Re: [parisc-linux] not freeing initmem and power button


> Hi Kenneth,
>
> I think the problem is your 712/60, which (maybe) doesn't support
> soft-power-off.
> Please look into your dmesg, there you should see one of:
> 1. Gecko-style soft power switch enabled,
> 2. Soft power switch support not available.
> 3. Soft power switch enabled, polling @ 0x<addr>
>
> I suppose your 712/60 will give you #2 and that's why it will not work.
>
> Helge
>
> On Saturday 20 April 2002 15:48, kenneth westelinck wrote:
> > Hi again,
> >
> > Okay, I had a busy week and didn't get any chance to compile a new
kernel.
> > Today I've managed to get the 2.4.18-pa20 up and running, but the power
> > button is still not working as expected. Pressing the button with
"Software
> > power switch support: enabled" powers down the machine instantly (as
> > before). When I disable the powerswitch with "sysctl -w kernel/power=0"
I'm
> > having the same result. Am I missing something?
> > Attached to this mail you can find my .config - file
> > Thanks.
> >
> >
> > regards,
> >
> > Kenneth
>
>

------=_NextPart_000_0052_01C1E89A.1F058E70
Content-Type: application/octet-stream;
	name="dmesg"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="dmesg"

Linux version 2.4.18-pa20 (root@nero) (gcc version 3.0.4) #2 Fri Apr 19 =
19:29:16 CEST 2002
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00006000 00000481 00000000 00000000 77c3f3d6 00000000 00000004 =
00000072 00000072
vers  0000000b
model 9000/712
Total Memory: 64 Mb
pagetable_init
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=3D/dev/sda4 HOME=3D/ console=3Dtty0 sti=3D1 =
sti_font=3DVGA8x16 TERM=3Dlinux palo_kernel=3D3/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 59.80 BogoMIPS
Memory: 62012k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Searching for devices...
Found devices:
1. Gecko GSC Core Graphics (10) at 0xf8000000 [1], versions 0x16, 0x0, =
0x85
2. Gecko Core BA (11) at 0xf0100000 [2], versions 0x16, 0x0, 0x81
3. Gecko Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x16, 0x0, 0x82
4. Gecko Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x16, =
0x0, 0x8a
5. Gecko Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x16, 0x0, =
0x8c
6. Gecko Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x16, 0x0, =
0x74
7. Gecko Audio (10) at 0xf0104000 [2/0/8], versions 0x16, 0x0, 0x7b
8. Gecko Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x16, 0x0, =
0x83
9. Gecko Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x16, 0x0, =
0x84
10. Gecko Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x16, =
0x0, 0x84
11. Gecko (712/60) (0) at 0xfffbe000 [8], versions 0x600, 0x0, 0x4
12. Memory (1) at 0xfffbf000 [9], versions 0x26, 0x0, 0x9
CPU(s): 1 x PA7100LC (PCX-L) at 60.000000 MHz
Lasi version 0 at 0xf0100000 found.
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Gecko-style soft power switch enabled.
Starting kswapd
VFS: Diskquotas version dquot_6.4.0 initialized
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
STI word mode ROM at f0080000, hpa=3Df8000000
STI word mode ROM, id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1024
Console: switching to colour frame buffer device 128x48
fb0: stifb 1024x768-8 frame buffer device, id: 2b4ded6d, mmio: =
0xf8100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ =
SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq =3D 90) is a 16550A
PS/2 keyboard port at 0xf0108000 (irq 69) found, device attached.
PS/2 psaux port at 0xf0108100 (irq 69) found, device attached.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=3D32
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 6D F5 E8 IRQ 87.
82596.c $Revision: 1.29 $
SCSI subsystem driver Revision: 1.00
53c700: Version 2.7 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2=20
scsi0 : LASI SCSI 53c700
scsi0: (6:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST32430N          Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
scsi0: (6:0) Enabling Tag Command Queuing
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
Lasi Harmony Audio driver V0.9a, h/w id 20, rev. 18 at 0xf0104000, IRQ =
82
sticonsole_init: searching for STI ROMs
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 349k freed
Adding Swap: 124616k swap-space (priority -1)
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
eth0: link ok.

------=_NextPart_000_0052_01C1E89A.1F058E70--



From - Thu Nov 08 21:22:28 2018
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From: Randolph Chung <tausq@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] unofficial gdb deb on ftp site
Date: Sat, 20 Apr 2002 20:59:52 -0700
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there is an unofficial gdb debian package at

ftp://ftp.parisc-linux.org/unofficial-debs/gdb_5.2.cvs20020401-4.1_hppa.deb

this is basically the same as the Debian package, except it has a fix
for the '"core" is not a core dump: File format not recognized' bug.

A patch has been submitted to the Debian maintainer, but in the meantime
if you want you can use this package.

I see that Dave has changed hppa-gcc from using stabs to using dwarf2 in
gcc 3.2, so things might be quite different once we move to gcc 3.2...
but for now gdb is only marginally usable.  If anyone is interested in 
looking at gdb, we seem to have some problems with gdb tracking line 
info.  'next' doesn't work at all...

randolph



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From: James S <smithjames@comcast.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] not freeing initmem and power button
Date: Sat, 20 Apr 2002 23:08:17 -0500
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> Nope, soft power-off is enabled as you can see in my attached dmesg. BTW,
> when using the old 2.4.9 kernel nothing happened when pressing this
switch.
>

for what its worth :)

using the 2.4.17 kernel on my 712/60 here & the power switch does an orderly
shutdown

found this kernel fairly stable (no crashes in everyday use) with smbfs
compiled in


James S









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From: Joel Soete <joel.soete@freebel.net>
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Here is attached a patch to avoid 'implicit' warning at compile time.
It is mainly a lk-math-emu.h file collecting math-emu functions 
prototype and also some try to unify the declaration of functions.

Please let me know your opinion.

Humm some other type of warning appear so:
driver.c: In function `handle_fpe':
driver.c:105: warning: passing arg 1 of `decode_fpu' from incompatible 
pointer type
driver.c:105: warning: passing arg 2 of `decode_fpu' makes pointer from 
integer without a cast
...

fpudispatch.c: In function `decode_0c':
fpudispatch.c:372: warning: passing arg 1 of `dbl_fsqrt' from 
incompatible pointer type
fpudispatch.c:372: warning: passing arg 3 of `dbl_fsqrt' from 
incompatible pointer type
fpudispatch.c:384: warning: passing arg 1 of `dbl_frnd' from 
incompatible pointer type
fpudispatch.c:384: warning: passing arg 3 of `dbl_frnd' from 
incompatible pointer type
fpudispatch.c:413: warning: passing arg 3 of `sgl_to_dbl_fcnvff' from 
incompatible pointer type
fpudispatch.c:416: warning: passing arg 1 of `dbl_to_sgl_fcnvff' from 
incompatible pointer type
fpudispatch.c:427: warning: passing arg 3 of `sgl_to_dbl_fcnvxf' from 
incompatible pointer type
fpudispatch.c:430: warning: passing arg 1 of `dbl_to_sgl_fcnvxf' from 
incompatible pointer type
fpudispatch.c:433: warning: passing arg 1 of `dbl_to_dbl_fcnvxf' from 
incompatible pointer type
fpudispatch.c:433: warning: passing arg 3 of `dbl_to_dbl_fcnvxf' from 
incompatible pointer type
fpudispatch.c:442: warning: passing arg 3 of `sgl_to_dbl_fcnvfx' from 
incompatible pointer type
fpudispatch.c:445: warning: passing arg 1 of `dbl_to_sgl_fcnvfx' from 
incompatible pointer type
fpudispatch.c:448: warning: passing arg 1 of `dbl_to_dbl_fcnvfx' from 
incompatible pointer type
fpudispatch.c:448: warning: passing arg 3 of `dbl_to_dbl_fcnvfx' from 
incompatible pointer type
fpudispatch.c:457: warning: passing arg 3 of `sgl_to_dbl_fcnvfxt' from 
incompatible pointer type
fpudispatch.c:460: warning: passing arg 1 of `dbl_to_sgl_fcnvfxt' from 
incompatible pointer type
fpudispatch.c:463: warning: passing arg 1 of `dbl_to_dbl_fcnvfxt' from 
incompatible pointer type
fpudispatch.c:463: warning: passing arg 3 of `dbl_to_dbl_fcnvfxt' from 
incompatible pointer type
fpudispatch.c:472: warning: passing arg 3 of `sgl_to_dbl_fcnvuf' from 
incompatible pointer type
fpudispatch.c:475: warning: passing arg 1 of `dbl_to_sgl_fcnvuf' from 
incompatible pointer type
fpudispatch.c:478: warning: passing arg 1 of `dbl_to_dbl_fcnvuf' from 
incompatible pointer type
fpudispatch.c:478: warning: passing arg 3 of `dbl_to_dbl_fcnvuf' from 
incompatible pointer type
fpudispatch.c:487: warning: passing arg 3 of `sgl_to_dbl_fcnvfu' from 
incompatible pointer type
fpudispatch.c:490: warning: passing arg 1 of `dbl_to_sgl_fcnvfu' from 
incompatible pointer type
fpudispatch.c:493: warning: passing arg 1 of `dbl_to_dbl_fcnvfu' from 
incompatible pointer type
fpudispatch.c:493: warning: passing arg 3 of `dbl_to_dbl_fcnvfu' from 
incompatible pointer type
fpudispatch.c:502: warning: passing arg 3 of `sgl_to_dbl_fcnvfut' from 
incompatible pointer type
fpudispatch.c:505: warning: passing arg 1 of `dbl_to_sgl_fcnvfut' from 
incompatible pointer type
fpudispatch.c:508: warning: passing arg 1 of `dbl_to_dbl_fcnvfut' from 
incompatible pointer type
fpudispatch.c:508: warning: passing arg 3 of `dbl_to_dbl_fcnvfut' from 
incompatible pointer type
fpudispatch.c:552: warning: passing arg 1 of `dbl_fcmp' from 
incompatible pointer type
fpudispatch.c:552: warning: passing arg 2 of `dbl_fcmp' from 
incompatible pointer type
fpudispatch.c:583: warning: passing arg 1 of `dbl_fcmp' from 
incompatible pointer type
fpudispatch.c:583: warning: passing arg 2 of `dbl_fcmp' from 
incompatible pointer type
fpudispatch.c:629: warning: passing arg 1 of `dbl_fadd' from 
incompatible pointer type
fpudispatch.c:629: warning: passing arg 2 of `dbl_fadd' from 
incompatible pointer type
fpudispatch.c:629: warning: passing arg 3 of `dbl_fadd' from 
incompatible pointer type
fpudispatch.c:641: warning: passing arg 1 of `dbl_fsub' from 
incompatible pointer type
fpudispatch.c:641: warning: passing arg 2 of `dbl_fsub' from 
incompatible pointer type
fpudispatch.c:641: warning: passing arg 3 of `dbl_fsub' from 
incompatible pointer type
fpudispatch.c:653: warning: passing arg 1 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:653: warning: passing arg 2 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:653: warning: passing arg 3 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:665: warning: passing arg 1 of `dbl_fdiv' from 
incompatible pointer type
fpudispatch.c:665: warning: passing arg 2 of `dbl_fdiv' from 
incompatible pointer type
fpudispatch.c:665: warning: passing arg 3 of `dbl_fdiv' from 
incompatible pointer type
fpudispatch.c:677: warning: passing arg 1 of `dbl_frem' from 
incompatible pointer type
fpudispatch.c:677: warning: passing arg 2 of `dbl_frem' from 
incompatible pointer type
fpudispatch.c:677: warning: passing arg 3 of `dbl_frem' from 
incompatible pointer type
fpudispatch.c: In function `decode_0e':
fpudispatch.c:783: warning: passing arg 1 of `dbl_fsqrt' from 
incompatible pointer type
fpudispatch.c:783: warning: passing arg 3 of `dbl_fsqrt' from 
incompatible pointer type
fpudispatch.c:795: warning: passing arg 1 of `dbl_frnd' from 
incompatible pointer type
fpudispatch.c:795: warning: passing arg 3 of `dbl_frnd' from 
incompatible pointer type
fpudispatch.c:822: warning: passing arg 3 of `sgl_to_dbl_fcnvff' from 
incompatible pointer type
fpudispatch.c:825: warning: passing arg 1 of `dbl_to_sgl_fcnvff' from 
incompatible pointer type
fpudispatch.c:836: warning: passing arg 3 of `sgl_to_dbl_fcnvxf' from 
incompatible pointer type
fpudispatch.c:839: warning: passing arg 1 of `dbl_to_sgl_fcnvxf' from 
incompatible pointer type
fpudispatch.c:842: warning: passing arg 1 of `dbl_to_dbl_fcnvxf' from 
incompatible pointer type
fpudispatch.c:842: warning: passing arg 3 of `dbl_to_dbl_fcnvxf' from 
incompatible pointer type
fpudispatch.c:851: warning: passing arg 3 of `sgl_to_dbl_fcnvfx' from 
incompatible pointer type
fpudispatch.c:854: warning: passing arg 1 of `dbl_to_sgl_fcnvfx' from 
incompatible pointer type
fpudispatch.c:857: warning: passing arg 1 of `dbl_to_dbl_fcnvfx' from 
incompatible pointer type
fpudispatch.c:857: warning: passing arg 3 of `dbl_to_dbl_fcnvfx' from 
incompatible pointer type
fpudispatch.c:866: warning: passing arg 3 of `sgl_to_dbl_fcnvfxt' from 
incompatible pointer type
fpudispatch.c:869: warning: passing arg 1 of `dbl_to_sgl_fcnvfxt' from 
incompatible pointer type
fpudispatch.c:872: warning: passing arg 1 of `dbl_to_dbl_fcnvfxt' from 
incompatible pointer type
fpudispatch.c:872: warning: passing arg 3 of `dbl_to_dbl_fcnvfxt' from 
incompatible pointer type
fpudispatch.c:881: warning: passing arg 3 of `sgl_to_dbl_fcnvuf' from 
incompatible pointer type
fpudispatch.c:884: warning: passing arg 1 of `dbl_to_sgl_fcnvuf' from 
incompatible pointer type
fpudispatch.c:887: warning: passing arg 1 of `dbl_to_dbl_fcnvuf' from 
incompatible pointer type
fpudispatch.c:887: warning: passing arg 3 of `dbl_to_dbl_fcnvuf' from 
incompatible pointer type
fpudispatch.c:896: warning: passing arg 3 of `sgl_to_dbl_fcnvfu' from 
incompatible pointer type
fpudispatch.c:899: warning: passing arg 1 of `dbl_to_sgl_fcnvfu' from 
incompatible pointer type
fpudispatch.c:902: warning: passing arg 1 of `dbl_to_dbl_fcnvfu' from 
incompatible pointer type
fpudispatch.c:902: warning: passing arg 3 of `dbl_to_dbl_fcnvfu' from 
incompatible pointer type
fpudispatch.c:911: warning: passing arg 3 of `sgl_to_dbl_fcnvfut' from 
incompatible pointer type
fpudispatch.c:914: warning: passing arg 1 of `dbl_to_sgl_fcnvfut' from 
incompatible pointer type
fpudispatch.c:917: warning: passing arg 1 of `dbl_to_dbl_fcnvfut' from 
incompatible pointer type
fpudispatch.c:917: warning: passing arg 3 of `dbl_to_dbl_fcnvfut' from 
incompatible pointer type
fpudispatch.c:958: warning: passing arg 1 of `dbl_fcmp' from 
incompatible pointer type
fpudispatch.c:958: warning: passing arg 2 of `dbl_fcmp' from 
incompatible pointer type
fpudispatch.c:990: warning: passing arg 1 of `dbl_fcmp' from 
incompatible pointer type
fpudispatch.c:990: warning: passing arg 2 of `dbl_fcmp' from 
incompatible pointer type
fpudispatch.c:1027: warning: passing arg 1 of `dbl_fadd' from 
incompatible pointer type
fpudispatch.c:1027: warning: passing arg 2 of `dbl_fadd' from 
incompatible pointer type
fpudispatch.c:1027: warning: passing arg 3 of `dbl_fadd' from 
incompatible pointer type
fpudispatch.c:1036: warning: passing arg 1 of `dbl_fsub' from 
incompatible pointer type
fpudispatch.c:1036: warning: passing arg 2 of `dbl_fsub' from 
incompatible pointer type
fpudispatch.c:1036: warning: passing arg 3 of `dbl_fsub' from 
incompatible pointer type
fpudispatch.c:1071: warning: passing arg 1 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1071: warning: passing arg 2 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1071: warning: passing arg 3 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1081: warning: passing arg 1 of `dbl_fdiv' from 
incompatible pointer type
fpudispatch.c:1081: warning: passing arg 2 of `dbl_fdiv' from 
incompatible pointer type
fpudispatch.c:1081: warning: passing arg 3 of `dbl_fdiv' from 
incompatible pointer type
fpudispatch.c:1090: warning: passing arg 1 of `dbl_frem' from 
incompatible pointer type
fpudispatch.c:1090: warning: passing arg 2 of `dbl_frem' from 
incompatible pointer type
fpudispatch.c:1090: warning: passing arg 3 of `dbl_frem' from 
incompatible pointer type
fpudispatch.c: In function `decode_06':
fpudispatch.c:1143: warning: passing arg 1 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1143: warning: passing arg 2 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1143: warning: passing arg 3 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1146: warning: passing arg 1 of `dbl_to_sgl_fcnvfxt' from 
incompatible pointer type
fpudispatch.c:1152: warning: passing arg 1 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1152: warning: passing arg 2 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1152: warning: passing arg 3 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1155: warning: passing arg 1 of `dbl_fadd' from 
incompatible pointer type
fpudispatch.c:1155: warning: passing arg 2 of `dbl_fadd' from 
incompatible pointer type
fpudispatch.c:1155: warning: passing arg 3 of `dbl_fadd' from 
incompatible pointer type
fpudispatch.c:1167: warning: passing arg 1 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1167: warning: passing arg 2 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1167: warning: passing arg 3 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1170: warning: passing arg 1 of `dbl_fadd' from 
incompatible pointer type
fpudispatch.c:1170: warning: passing arg 2 of `dbl_fadd' from 
incompatible pointer type
fpudispatch.c:1170: warning: passing arg 3 of `dbl_fadd' from 
incompatible pointer type
fpudispatch.c: In function `decode_26':
fpudispatch.c:1278: warning: passing arg 1 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1278: warning: passing arg 2 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1278: warning: passing arg 3 of `dbl_fmpy' from 
incompatible pointer type
fpudispatch.c:1280: warning: passing arg 1 of `dbl_fsub' from 
incompatible pointer type
fpudispatch.c:1280: warning: passing arg 2 of `dbl_fsub' from 
incompatible pointer type
fpudispatch.c:1280: warning: passing arg 3 of `dbl_fsub' from 
incompatible pointer type
fpudispatch.c: In function `decode_2e':
fpudispatch.c:1360: warning: passing arg 1 of `dbl_fmpynfadd' from 
incompatible pointer type
fpudispatch.c:1360: warning: passing arg 2 of `dbl_fmpynfadd' from 
incompatible pointer type
fpudispatch.c:1360: warning: passing arg 3 of `dbl_fmpynfadd' from 
incompatible pointer type
fpudispatch.c:1360: warning: passing arg 5 of `dbl_fmpynfadd' from 
incompatible pointer type
fpudispatch.c:1363: warning: passing arg 1 of `dbl_fmpyfadd' from 
incompatible pointer type
fpudispatch.c:1363: warning: passing arg 2 of `dbl_fmpyfadd' from 
incompatible pointer type
fpudispatch.c:1363: warning: passing arg 3 of `dbl_fmpyfadd' from 
incompatible pointer type
fpudispatch.c:1363: warning: passing arg 5 of `dbl_fmpyfadd' from 
incompatible pointer type

What do you suggest for those (let like this or submit to HP (see Paul 
comment) to improve their code)?

Matthew Wilcox wrote:
> On Wed, Apr 17, 2002 at 11:02:54AM +0200, joel.soete@freebel.net wrote:
> 
>>Here is some trace I get from the kernel (2.4.18-pa19) make (after a make
>>oldconfig):
> 
> ...
> 
>>I do think that lacks a header to define some function.
> 
> 
> this code is crufty old HPUX stuff... the warnings have been there
> basically forever, and nobody's bothered to fix them.  Nobody's found a
> problem either :-) If you want to eliminate these warnings by declaring
> everything properly, feel free to send a patch, but I don't think it's
> very important.
> 


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Hi Randolph,

I try my hown gcc-3.2 (+ binutils, glibc) against kernel 2.4.18-pa19 
(not yet take the risc with pa20).

It compiles as well as with gcc3.0.x. It boots also but as soon as I try 
to connect it remotly with telnet or ssh (I forget to test ftp) the 
system crash:
"Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from ... to ...:

...

[those tree line seems to be repeated infinitely. well after 5 minutes I 
had to unplug the power supply to reboot]

Humm as it appends as well with telnet as ssh I suspect a inetd problem?

Any idea?

Thanks,
	Joel

PS: I will try your dpkg asap




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On Sun, Apr 21, 2002 at 01:05:59PM +0000, Joel Soete wrote:
> "Stack pointer and cr30 do not correspond!
> Dumping virtual address stack instead
> 
> Dumping Stack from ... to ...:
> 
> Humm as it appends as well with telnet as ssh I suspect a inetd problem?

I'd bet on gcc-3.2 miscompiling something in the network part of the kernel,
personally.

-- 
Revolutions do not require corporate support.



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> I try my hown gcc-3.2 (+ binutils, glibc) against kernel 2.4.18-pa19 
> (not yet take the risc with pa20).
> 
> It compiles as well as with gcc3.0.x. It boots also but as soon as I try 
> to connect it remotly with telnet or ssh (I forget to test ftp) the 
> system crash:

if you still feel adventurous, check out the kdb cvs branch of the
kernel and you'll at least be able to tell where it crashed... :-)

randolph



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> I see that Dave has changed hppa-gcc from using stabs to using dwarf2 in
> gcc 3.2, so things might be quite different once we move to gcc 3.2...

That wasn't me.  I believe it was Alan.  This is also the case for 3.1.
What I did was fix the generation of frame notes in the prologue so that
the dwarf2 EH code works.  this is mainly for C++.  I'm not sure whether
gdb uses this information although it could.  You can always use "-gstabs"
to get stabs debugging information.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Quoting Randolph Chung <tausq@debian.org>:

> > I try my hown gcc-3.2 (+ binutils, glibc) against kernel 2.4.18-pa19 
> > (not yet take the risc with pa20).
> > 
> > It compiles as well as with gcc3.0.x. It boots also but as soon as I
> try 
> > to connect it remotly with telnet or ssh (I forget to test ftp) the 
> > system crash:
> 
> if you still feel adventurous, check out the kdb cvs branch of the
> kernel and you'll at least be able to tell where it crashed... :-)
> 
> randolph
> 
> 

Yes I will also try (and find out howto use)

Joel

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Subject: [parisc-linux] How to install emacs 21.2 on a B180L
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I'm trying to install emacs 21.2 on a B180L,  but I can't compile the sources.
The system tells me that "emacs hasn't been ported on
hppa-unknown-linux-system".

I think that the script "configure" is checking the system type.
Is there any way to avoid that by telling to "configure" that my computer
is not a hppa but an emacs21.2-supported architecture?

Thanks.




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On Mon, Apr 22, 2002 at 11:13:02AM +0200, Bruno Lon wrote:
> I'm trying to install emacs 21.2 on a B180L,  but I can't compile the sources.
> The system tells me that "emacs hasn't been ported on
> hppa-unknown-linux-system".

   emacs21 |     21.2-1 |      unstable | source, alpha, arm, hppa, i386, ia64, m68k, mips, mipsel, powerpc, s390, sparc

so you can simply apt-get install emacs21.  Presumably the debian package
has patches to allow emacs to compile on hppa-linux.

-- 
Revolutions do not require corporate support.



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I don't know if anyone else has tried this, but trying to compile
Becker's ifenslave commmand on a 0.93 box(kernel rebuilt to 2.4.18-pa0
yielded this mess:
ifenslave(.data+0x8c):/usr/src/build/53700-i386/BUILD/glibc-2.2.4/csu/init.c:
multiple definition of `opt_f'
/tmp/ccDAhJJg.o(.data+0x7c): first defined here
ifenslave(.data+0x18):/usr/src/build/53700-i386/BUILD/glibc-2.2.4/csu/init.c:
multiple definition of `longopts'
/tmp/ccDAhJJg.o(.data+0x8): first defined here
ifenslave(.data+0x90):/usr/src/build/53700-i386/BUILD/glibc-2.2.4/csu/init.c:
multiple definition of `opt_r'
/tmp/ccDAhJJg.o(.data+0x80): first defined here
ifenslave(.data+0x94):/usr/src/build/53700-i386/BUILD/glibc-2.2.4/csu/init.c:
multiple definition of `verbose'
/tmp/ccDAhJJg.o(.data+0x84): first defined here
ifenslave: In function `_init':
ifenslave(.init+0x0): multiple definition of `_init'
/usr/lib/gcc-lib/hppa-linux/3.0.2/../../../crti.o(.init+0x0): first
defined here
ifenslave(.data+0x98):/usr/src/build/53700-i386/BUILD/glibc-2.2.4/csu/init.c:
multiple definition of `skfd'
/tmp/ccDAhJJg.o(.data+0x88): first defined here
ifenslave: In function `_start':
ifenslave(.text+0x0): multiple definition of `_start'
/usr/lib/gcc-lib/hppa-linux/3.0.2/../../../crt1.o(.text+0x0): first
defined here
ifenslave(.text+0x100):/usr/src/build/53700-i386/BUILD/glibc-2.2.4/csu/init.c:
multiple definition of `main'
/tmp/ccDAhJJg.o(.text+0x0): first defined here
/usr/bin/ld: Warning: size of symbol `main' changed from 3032 to 2589
in ifenslave
ifenslave(.data+0x88):/usr/src/build/53700-i386/BUILD/glibc-2.2.4/csu/init.c:
multiple definition of `opt_a'
/tmp/ccDAhJJg.o(.data+0x78): first defined here
ifenslave(.fini+0x0):/usr/src/build/53700-i386/BUILD/glibc-2.2.4/csu/init.c:
multiple definition of `_fini'
/usr/lib/gcc-lib/hppa-linux/3.0.2/../../../crti.o(.fini+0x0): first
defined here
ifenslave(.rodata+0x4):/usr/src/build/53700-i386/BUILD/glibc-2.2.4/csu/init.c:
multiple definition of `_IO_stdin_used'
/usr/lib/gcc-lib/hppa-linux/3.0.2/../../../crt1.o(.rodata+0x0): first
defined here
/usr/lib/gcc-lib/hppa-linux/3.0.2/../../../crt1.o(.dynamic+0x0):
multiple definition of `_DYNAMIC'
ifenslave(.dynamic+0x0):/usr/src/build/53700-i386/BUILD/glibc-2.2.4/csu/init.c:
first defined here
/usr/lib/gcc-lib/hppa-linux/3.0.2/../../../crt1.o(.got+0x0): multiple
definition of `_GLOBAL_OFFSET_TABLE_'
ifenslave(.got+0x0):/usr/src/build/53700-i386/BUILD/glibc-2.2.4/csu/init.c:
first defined here
/usr/bin/ld: .got section not immediately after .plt section
collect2: ld returned 1 exit status

is this just a signal to upgrade gcc and glibc or is there more to it?
Aaron
-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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On Mon, Apr 22, 2002 at 11:27:50PM -0400, Aaron Macks wrote:
> I don't know if anyone else has tried this, but trying to compile
> Becker's ifenslave commmand on a 0.93 box(kernel rebuilt to 2.4.18-pa0
> yielded this mess:

Is there something wrong with `apt-get install ifenslave'?  :-)

-- 
Revolutions do not require corporate support.



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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,

I've been trying to install the latest Debian woody
release(palinux-0.9.3.iso) on a PA-RISC (HP9000 C100) and I can't get
it
to install the base system.
I follow all the installation steps and everything runs smoothly
until I
get to the "Install base system". While installing it, I get the
following warning "Failure trying to run:chroot /target mount" and
then
if I try to swap to another console and issue the same command, I get
a
"segmentation fault" error. When I hit the continue button, then I
get a
"Base Installation error, debootstrap exited with an error (return
value
1)" and he then asks me to install again the base system. We also
tried
to skip this step the second time and everything seem to worked but
the
system was, of course, not usable after that as some packages were
missing and we were getting plenty of segmentation faults.
The machine has no special hardware added and we think we have
followed
all the steps from the installation guide. We have also browsed the
web
looking for this problem and we've found no reference.
Are we missing something? Any hints anybody?
thanks in advance,



- --
Saludos,
 Juan Pedro                         mailto:dijjvb@uib.es


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> > "Stack pointer and cr30 do not correspond!
> > Dumping virtual address stack instead
> > 
> > Dumping Stack from ... to ...:
> > 
> > Humm as it appends as well with telnet as ssh I suspect a inetd problem?
> 
> I'd bet on gcc-3.2 miscompiling something in the network part of the kernel,
> personally.
>

Tested today.

Happens in the 3.1 main branch aswell (don't remember it previously happening).
Maybe I shouldn't be recommending the use of 3.1 as a cross compiler? ;)

I'll kdb on a serial tommorow morning and see what is causing it to die.

Oddly enough, I run diskless systems and they run off NFS perfectly fine...
so everything can't be that broke.

c. 




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Subject: Re: [parisc-linux] Problem installing Debian woody in PA-RISC (HP9000 C100)
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Juan Pedro Vilar wrote:
> While installing it, I get the
> following warning "Failure trying to run:chroot /target mount" and
> then if I try to swap to another console and issue the same command,
> I get a "segmentation fault" error.

I don't know what the problem here is.
But my gut feeling is we should create a 0.9.4 CD with recent bits
instead of persuing this problem.
Did anyone care to do that in the near future?

thanks,
grant



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On Tue, Apr 23, 2002 at 09:51:39AM -0600, Grant Grundler wrote:
> Juan Pedro Vilar wrote:
> > While installing it, I get the
> > following warning "Failure trying to run:chroot /target mount" and
> > then if I try to swap to another console and issue the same command,
> > I get a "segmentation fault" error.
> 
> I don't know what the problem here is.
> But my gut feeling is we should create a 0.9.4 CD with recent bits
> instead of persuing this problem.
> Did anyone care to do that in the near future?

Given that Debian 3.0 is due May 1 (see
http://lists.debian.org/debian-devel-announce/2002/debian-devel-announce-200204/msg00004.html)
I think any effort expended on 0.9.4 would be wasted.

-- 
Revolutions do not require corporate support.



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Hello Carlos,

Quoting "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>:

> > > "Stack pointer and cr30 do not correspond!
> > > Dumping virtual address stack instead
> > > 
> > > Dumping Stack from ... to ...:
> > > 
> > > Humm as it appends as well with telnet as ssh I suspect a inetd
> problem?
> > 
> > I'd bet on gcc-3.2 miscompiling something in the network part of the
> kernel,
> > personally.
> >
> 
> Tested today.
> 
> Happens in the 3.1 main branch aswell (don't remember it previously
> happening).
> Maybe I shouldn't be recommending the use of 3.1 as a cross compiler?
> ;)

I also notice it on 3.1 about two mount ago (that is why I do another try with 3.2)


> 
> I'll kdb on a serial tommorow morning and see what is causing it to
> die.
> 

I would also to do so. But I had the bad idea to co the last gcc release
(yesterday and today) to rebuild the toolchain.
But gcc build seems to be broken (step 4.2 of your procedure):

gcc -c -DIN_GCC    -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes   -DHAVE_CONFIG_H    -I. -Ijava
-I/GNU-Dev/parisc-linux/src/gcc/gcc -I/GNU-Dev/parisc-linux/src/gcc/gcc/java
-I/GNU-Dev/parisc-linux/src/gcc/gcc/config
-I/GNU-Dev/parisc-linux/src/gcc/gcc/../include
/GNU-Dev/parisc-linux/src/gcc/gcc/java/parse.c -o java/parse.o
/tmp/ccj2Nlrs.s: Assembler messages:
/tmp/ccj2Nlrs.s:148746: Error: Field out of range [-262144..262143] (-263392).
make[1]: *** [java/parse.o] Error 1
make[1]: Leaving directory `/GNU-Dev/parisc-linux/build/gcc/gcc'
make: *** [all-gcc] Error 2

Last week co did not try to build any java.
Any idea or work-around?

Joel

PS1: about step 4.2 of your howto-xc, I notice a small difference between html
and pdf (in html you use gcc option "enable-shared" in pdf "disable-shared").
But this not the cause of the above problem.

PS2: I also make an apt-get dist-upgrade (with ftp.de.debian.org) so that native
gcc is now 3.0.4-5 (I think it was already installed last week)




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Subject: Re: [parisc-linux] Problem installing Debian woody in PA-RISC
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Juan Pedro,

does the machine have a wide-differential SCSI harddrive ? Then this 
applies to you :

Filesystem Corruption! Systems with NCR/LSI 53c720 Fast/Wide/Differential 
SCSI interface need to use
"ncr53c8xx=burst:3" palo boot parameter. This avoids overflowing the 
on-chip DMA FIFO which results in file
system corruption on disks behind that interface. Either edit 
/etc/palo.conf or add this manually at boot time. 2.4.16-pa14
(and newer) kernels with a "real" fix are available on our FTP site.

You need to manually give the paramter when booting from the CD. Otherwise 
all sorts of weird things happen - been there, done that ;-)

         Christian














At 03:48 PM 4/23/2002 +0200, Juan Pedro Vilar wrote:
>-----BEGIN PGP SIGNED MESSAGE-----
>Hash: SHA1
>
>Hi,
>
>I've been trying to install the latest Debian woody
>release(palinux-0.9.3.iso) on a PA-RISC (HP9000 C100) and I can't get
>it
>to install the base system.
>I follow all the installation steps and everything runs smoothly
>until I
>get to the "Install base system". While installing it, I get the
>following warning "Failure trying to run:chroot /target mount" and
>then
>if I try to swap to another console and issue the same command, I get
>a
>"segmentation fault" error. When I hit the continue button, then I
>get a
>"Base Installation error, debootstrap exited with an error (return
>value
>1)" and he then asks me to install again the base system. We also
>tried
>to skip this step the second time and everything seem to worked but
>the
>system was, of course, not usable after that as some packages were
>missing and we were getting plenty of segmentation faults.
>The machine has no special hardware added and we think we have
>followed
>all the steps from the installation guide. We have also browsed the
>web
>looking for this problem and we've found no reference.
>Are we missing something? Any hints anybody?
>thanks in advance,
>
>
>
>- --
>Saludos,
>  Juan Pedro                         mailto:dijjvb@uib.es
>
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>_______________________________________________
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>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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> I would also to do so. But I had the bad idea to co the last gcc release
> (yesterday and today) to rebuild the toolchain.
> But gcc build seems to be broken (step 4.2 of your procedure):
> 
> gcc -c -DIN_GCC    -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes
> -Wmissing-prototypes   -DHAVE_CONFIG_H    -I. -Ijava
> -I/GNU-Dev/parisc-linux/src/gcc/gcc -I/GNU-Dev/parisc-linux/src/gcc/gcc/java
> -I/GNU-Dev/parisc-linux/src/gcc/gcc/config
> -I/GNU-Dev/parisc-linux/src/gcc/gcc/../include
> /GNU-Dev/parisc-linux/src/gcc/gcc/java/parse.c -o java/parse.o
> /tmp/ccj2Nlrs.s: Assembler messages:
> /tmp/ccj2Nlrs.s:148746: Error: Field out of range [-262144..262143] (-263392).
> make[1]: *** [java/parse.o] Error 1
> make[1]: Leaving directory `/GNU-Dev/parisc-linux/build/gcc/gcc'
> make: *** [all-gcc] Error 2
> 
> Last week co did not try to build any java.
> Any idea or work-around?

"make bootstrap".

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> 
> Joel
> 
> PS1: about step 4.2 of your howto-xc, I notice a small difference between html
> and pdf (in html you use gcc option "enable-shared" in pdf "disable-shared").
> But this not the cause of the above problem.
> 
> PS2: I also make an apt-get dist-upgrade (with ftp.de.debian.org) so that native
> gcc is now 3.0.4-5 (I think it was already installed last week)
> 
>

Both the HTML and PDF version are the same (just double checked).

http://www.baldric.uwo.ca/~carlos/HOWTO-Parisc/index.html
http://www.baldric.uwo.ca/~carlos/HOWTO-Parisc/HOWTO-Building_PARISC-LINUX_CrossCompiler.pdf

In section 4.2 you are bootstraping the C compiler without glibc
so you must use --disable-shared.

In section 4.5 you have already built glibc and you can turn
shared support back on with --enable-shared.

c.

p.s. The HTML and PDF do have some formatting differences...
     I'll get around to making them look similar later :}
     Dang... just noticed I missed one of the path changes in
     the pdf...



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Hi list!

I just subscribed here. I'm on debian-hppa but that doesn't
seem to get much traffic, so I'll repost my question here.

I have previous experience with parisc-linux in that I had
it installed and working ( with X ) on a 715/80. Thinking
to move on to bigger things, I sold it on Ebay and rolled
my profits into a C200 with some unspecified FX graphics
board.

Now, from what I have gleaned, this machine only works in
serial console mode? Do any graphics cards work with it
for X yet? I do have a HP7000/60 dumb terminal, but of
course I want to run X if I can.

I'm an accomplished kernel recompiler if that means anything.

(Nervously gnawing fingernails waiting for reply's)




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The answer is it depends upon the graphics card.  I have a C200+
that I use at work that I have been self-hosting on at work with 
a GSC video card:

5. Coral SGC Graphics (10) at 0xfa000000 [8/4], versions 0x4, 0x0, 0x77

using framebuffers and X.  I also have a C200+ at home with a PCI
video card 

Dec  5 22:11:05 vega kernel: STI device: HPA4552A

in which STI is supported, but not the framebuffer device (ie. 
no X).

Sorry I can't provide much additional advice, that is just
works and does not work for me.

thanks,

- Ryan



On Tue, 2002-04-23 at 16:51, B. Douglas Hilton wrote:
> Hi list!
> 
> I just subscribed here. I'm on debian-hppa but that doesn't
> seem to get much traffic, so I'll repost my question here.
> 
> I have previous experience with parisc-linux in that I had
> it installed and working ( with X ) on a 715/80. Thinking
> to move on to bigger things, I sold it on Ebay and rolled
> my profits into a C200 with some unspecified FX graphics
> board.
> 
> Now, from what I have gleaned, this machine only works in
> serial console mode? Do any graphics cards work with it
> for X yet? I do have a HP7000/60 dumb terminal, but of
> course I want to run X if I can.
> 
> I'm an accomplished kernel recompiler if that means anything.
> 
> (Nervously gnawing fingernails waiting for reply's)
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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Thanks for the info. Here's my comments and reply.


Ryan Bradetich wrote:
> The answer is it depends upon the graphics card.  I have a C200+
> that I use at work that I have been self-hosting on at work with 
> a GSC video card:
> 
> 5. Coral SGC Graphics (10) at 0xfa000000 [8/4], versions 0x4, 0x0, 0x77


Is the Coral an HCRX-24? I'm curious as to which boards will work in a
C200. I'll try and get a different card for it if need be.


> 
> using framebuffers and X.  I also have a C200+ at home with a PCI
> video card 
> 
> Dec  5 22:11:05 vega kernel: STI device: HPA4552A
> 
> in which STI is supported, but not the framebuffer device (ie. 
> no X).


Well that is better than dumb terminal mode at least. I wish
I was like Brian Paul and could bang out Mesa/DRI support for these
FX boards, I'd like to see QuakeForge running on a hppa box in OpenGL
mode someday :-)


> 
> Sorry I can't provide much additional advice, that is just
> works and does not work for me.
> 
> thanks,
> 
> - Ryan
> 
> 
> 
> On Tue, 2002-04-23 at 16:51, B. Douglas Hilton wrote:
> 
>>Hi list!
>>
>>I just subscribed here. I'm on debian-hppa but that doesn't
>>seem to get much traffic, so I'll repost my question here.
>>
>>I have previous experience with parisc-linux in that I had
>>it installed and working ( with X ) on a 715/80. Thinking
>>to move on to bigger things, I sold it on Ebay and rolled
>>my profits into a C200 with some unspecified FX graphics
>>board.
>>
>>Now, from what I have gleaned, this machine only works in
>>serial console mode? Do any graphics cards work with it
>>for X yet? I do have a HP7000/60 dumb terminal, but of
>>course I want to run X if I can.
>>
>>I'm an accomplished kernel recompiler if that means anything.
>>
>>(Nervously gnawing fingernails waiting for reply's)
>>
>>
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
> 
> 
> 
> 






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> I don't know what the problem here is.
> But my gut feeling is we should create a 0.9.4 CD with recent 
> bits instead of persuing this problem. Did anyone care to do 
> that in the near future?

Any chance 0.9.4 would boot on PA-8700s?

	Duraid




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"B. Douglas Hilton" wrote:
> Hi list!
> 
> I just subscribed here. I'm on debian-hppa but that doesn't
> seem to get much traffic, so I'll repost my question here.

Yeah - parisc-linux is a more appropriate place for the question anyway.

> I sold it on Ebay and rolled
> my profits into a C200 with some unspecified FX graphics
> board.

Not supported since HP hasn't published the docs for it.
Almost all the older gfx cards are supported including
the Vis-EG (PCI or GSC) that you mentioned in you posting
to debian-hppa.

grant



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"Duraid Madina" wrote:
> Any chance 0.9.4 would boot on PA-8700s?

No chance. I still don't have access to PA-8700.
I'm working on fixing that but as you might guess,
things are, uhm, complicated at the moment inside HP.

But as several folks noted, there's no point in doing a 0.9.4.
My bad for suggesting it...I didn't realise how close Debian 3.0
is to releasing.

grant



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How do I specify black box to be my default windows manager, it's a long 
time since I have had to do this and that was on a RH6 based system.

I have searched through the /etc/X11 directory and not found any thing that 
works.

Thanks

Rob




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Hi,

> How do I specify black box to be my default windows manager, it's a long 
> time since I have had to do this and that was on a RH6 based system.

put the complete path to black box executable in your ~/.xinitrc and 
startx will automatically run black box as your window manager.

Since it is not a parisc kernel devel issue, please send this knid of 
question eslewhere :-) debian-user@lists.debian.org for example.

Thomas.





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Thomas Marteau <marteaut@tuxfamily.org> writes:

> Hi,
> 
> > How do I specify black box to be my default windows manager, it's a
> > long time since I have had to do this and that was on a RH6 based
> > system.
> 
> put the complete path to black box executable in your ~/.xinitrc and
> startx will automatically run black box as your window manager.

Or, to change it system-wide 'update-alternatives --config
x-window-manager'.

-- 
James



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Quoting "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>:

> > 
> > Joel
> > 
> > PS1: about step 4.2 of your howto-xc, I notice a small difference
> between html
> > and pdf (in html you use gcc option "enable-shared" in pdf
> "disable-shared").
> > But this not the cause of the above problem.
> > 
> > PS2: I also make an apt-get dist-upgrade (with ftp.de.debian.org) so
> that native
> > gcc is now 3.0.4-5 (I think it was already installed last week)
> > 
> >
> 
> Both the HTML and PDF version are the same (just double checked).
> 
> http://www.baldric.uwo.ca/~carlos/HOWTO-Parisc/index.html
>
http://www.baldric.uwo.ca/~carlos/HOWTO-Parisc/HOWTO-Building_PARISC-LINUX_CrossCompiler.pdf
> 
> In section 4.2 you are bootstraping the C compiler without glibc
> so you must use --disable-shared.
> 
> In section 4.5 you have already built glibc and you can turn
> shared support back on with --enable-shared.
> 
> c.

Yes you have right (as it is my html which was wrong I do have forgot to
'reload' the page). Sorry for confusion.

Thanks also for explanation and attention.
    Joel

> 
> p.s. The HTML and PDF do have some formatting differences...
>      I'll get around to making them look similar later :}
>      Dang... just noticed I missed one of the path changes in
>      the pdf...
> 
> 


-------------------------------------------------
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Quoting joel.soete@freebel.net:

> 
> gcc -c -DIN_GCC    -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes
> -Wmissing-prototypes   -DHAVE_CONFIG_H    -I. -Ijava
> -I/GNU-Dev/parisc-linux/src/gcc/gcc
> -I/GNU-Dev/parisc-linux/src/gcc/gcc/java
> -I/GNU-Dev/parisc-linux/src/gcc/gcc/config
> -I/GNU-Dev/parisc-linux/src/gcc/gcc/../include
> /GNU-Dev/parisc-linux/src/gcc/gcc/java/parse.c -o java/parse.o
> /tmp/ccj2Nlrs.s: Assembler messages:
> /tmp/ccj2Nlrs.s:148746: Error: Field out of range [-262144..262143]
> (-263392).
> make[1]: *** [java/parse.o] Error 1
> make[1]: Leaving directory `/GNU-Dev/parisc-linux/build/gcc/gcc'
> make: *** [all-gcc] Error 2


Forget. The actual problem was again typo: in configure step I type
'enable-langages=c' in place of 'enable-languages=c' (lack of a u between g & a).

Sorry for mistakes.
    Joel


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Welcome,
With  the debian 0.9.3
I'am a problem config X11 graphic card on B180L gecko GSC is not
reconized.
 
Help
Please!!!
 
 

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an></font></p>

<p class=3DMsoNormal><span class=3DGramE><font size=3D2 =
face=3DArial><span lang=3DEN-GB
style=3D'font-size:10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>With=
<span
style=3D'mso-spacerun:yes'>&nbsp; </span>the</span></font></span><font =
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face=3DArial><span lang=3DEN-GB =
style=3D'font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'> <span class=3DSpellE>debian</span> =
0.9.3<o:p></o:p></span></font></p>

<p class=3DMsoNormal><span class=3DSpellE><font size=3D2 =
face=3DArial><span lang=3DEN-GB
style=3D'font-size:10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>I&#8=
217;am</span></font></span><font
size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB'> a problem <span class=3DSpellE>config</span> =
X11 graphic
card on B180L gecko GSC is not <span =
class=3DSpellE>reconized</span>.<o:p></o:p></span></font></p>

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From: "kenneth westelinck" <kennywest1@hotmail.com>
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Subject: Re: [parisc-linux] not freeing initmem and power button
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Hi all,

 I used WinMerge to compare the attached config with mine. I discovered that
CONFIG_IOMMU_CCIO was not set in my config, but it was enabled in yours.
Yesterday I recompiled the kernel with this option set, rebooted and ...
surprise it works.
Attached to this mail you can find my _finally_ working config. I hope it
will help other people.
Thanks a lot Helge.


 regards,

 Kenneth
>
> ----- Original Message -----
> From: "Helge Deller" <deller@gmx.de>
> To: "kenneth westelinck" <kennywest1@hotmail.com>
> Sent: Monday, April 22, 2002 10:58 PM
> Subject: Re: [parisc-linux] not freeing initmem and power button
>
>
> > Hi Kenneth,
> >
> > I've just got a report, that soft-power off works with 2.4.18-pa20 (and
> above)
> > on another 71/60.
> > Could you please retry with the attached .config and tell me if it works
?
> >
> > Thanks,
> > Helge
> >
> > On Saturday 20 April 2002 18:35, kenneth westelinck wrote:
> > > Nope, soft power-off is enabled as you can see in my attached dmesg.
> BTW,
> > > when using the old 2.4.9 kernel nothing happened when pressing this
> switch.
> > >
> > > ----- Original Message -----
> > > From: "Helge Deller" <deller@gmx.de>
> > > To: "kenneth westelinck" <kennywest1@hotmail.com>;
> > > <parisc-linux@lists.parisc-linux.org>
> > > Sent: Saturday, April 20, 2002 5:51 PM
> > > Subject: Re: [parisc-linux] not freeing initmem and power button
> > >
> > > > Hi Kenneth,
> > > >
> > > > I think the problem is your 712/60, which (maybe) doesn't support
> > > > soft-power-off.
> > > > Please look into your dmesg, there you should see one of:
> > > > 1. Gecko-style soft power switch enabled,
> > > > 2. Soft power switch support not available.
> > > > 3. Soft power switch enabled, polling @ 0x<addr>
> > > >
> > > > I suppose your 712/60 will give you #2 and that's why it will not
> work.
> > > >
> > > > Helge
> > > >
> > > > On Saturday 20 April 2002 15:48, kenneth westelinck wrote:
> > > > > Hi again,
> > > > >
> > > > > Okay, I had a busy week and didn't get any chance to compile a new
> > >
> > > kernel.
> > >
> > > > > Today I've managed to get the 2.4.18-pa20 up and running, but the
> power
> > > > > button is still not working as expected. Pressing the button with
> > >
> > > "Software
> > >
> > > > > power switch support: enabled" powers down the machine instantly
(as
> > > > > before). When I disable the powerswitch with "sysctl -w
> kernel/power=0"
> > >
> > > I'm
> > >
> > > > > having the same result. Am I missing something?
> > > > > Attached to this mail you can find my .config - file
> > > > > Thanks.
> > > > >
> > > > >
> > > > > regards,
> > > > >
> > > > > Kenneth
> >
>

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#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
CONFIG_MODULES=y
# CONFIG_MODVERSIONS is not set
CONFIG_KMOD=y

#
# Processor type
#
CONFIG_PA7100=y
# CONFIG_PA7200 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA8X00 is not set
CONFIG_PA11=y

#
# General options
#
# CONFIG_SMP is not set
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_KWDB is not set
# CONFIG_IOMMU_CCIO is not set
CONFIG_GSC=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
# CONFIG_EISA is not set
# CONFIG_ISA is not set
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_SUPERIO=y
CONFIG_PCI_NAMES=y

#
# General setup
#
# CONFIG_HOTPLUG is not set
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Parallel port support
#
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_PARPORT_PC_CML1=y
# CONFIG_PARPORT_SERIAL is not set
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_AMIGA is not set
# CONFIG_PARPORT_MFC3 is not set
# CONFIG_PARPORT_ATARI is not set
CONFIG_PARPORT_GSC=y
# CONFIG_PARPORT_SUNBPP is not set
# CONFIG_PARPORT_OTHER is not set
# CONFIG_PARPORT_1284 is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_LOOP=y
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=y
# CONFIG_NETFILTER is not set
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# ATA/IDE/MFM/RLL support
#
# CONFIG_IDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
CONFIG_53C700_USE_CONSISTENT=y
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_NCR53C8XX is not set
# CONFIG_SCSI_SYM53C8XX is not set
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=y
# CONFIG_SUNLANCE is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_NET_PCI is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Input core support
#
# CONFIG_INPUT is not set
# CONFIG_INPUT_KEYBDEV is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_HIL=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=y
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_PC110_PAD is not set

#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
CONFIG_QUOTA=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_JBD_DEBUG is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
# CONFIG_RAMFS is not set
# CONFIG_ISO9660_FS is not set
# CONFIG_JOLIET is not set
# CONFIG_ZISOFS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_INTERMEZZO_FS is not set
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_ROOT_NFS is not set
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
# CONFIG_ZISOFS_FS is not set
# CONFIG_ZLIB_FS_INFLATE is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
# CONFIG_NLS is not set

#
# Console drivers
#

#
# Frame-buffer support
#
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FB_RIVA is not set
# CONFIG_FB_CLGEN is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
CONFIG_FB_STI=y
# CONFIG_FB_MATROX is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FBCON_ADVANCED is not set
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB32=y
CONFIG_FBCON_STI=y
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set
# CONFIG_FBCON_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y

#
# Sound
#
CONFIG_SOUND=y
# CONFIG_SOUND_BT878 is not set
# CONFIG_SOUND_CMPCI is not set
# CONFIG_SOUND_EMU10K1 is not set
# CONFIG_MIDI_EMU10K1 is not set
# CONFIG_SOUND_FUSION is not set
# CONFIG_SOUND_CS4281 is not set
# CONFIG_SOUND_ES1370 is not set
# CONFIG_SOUND_ES1371 is not set
# CONFIG_SOUND_ESSSOLO1 is not set
# CONFIG_SOUND_MAESTRO is not set
# CONFIG_SOUND_MAESTRO3 is not set
# CONFIG_SOUND_ICH is not set
CONFIG_SOUND_HARMONY=y
# CONFIG_SOUND_RME96XX is not set
# CONFIG_SOUND_SONICVIBES is not set
# CONFIG_SOUND_TRIDENT is not set
# CONFIG_SOUND_MSNDCLAS is not set
# CONFIG_SOUND_MSNDPIN is not set
# CONFIG_SOUND_VIA82CXXX is not set
# CONFIG_MIDI_VIA82CXXX is not set
# CONFIG_SOUND_OSS is not set
# CONFIG_SOUND_TVMIXER is not set

#
# USB support
#
# CONFIG_USB is not set
# CONFIG_USB_UHCI is not set
# CONFIG_USB_UHCI_ALT is not set
# CONFIG_USB_OHCI is not set
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_BLUETOOTH is not set
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_HP8200e is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_DC2XX is not set
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_SCANNER is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_HPUSBSCSI is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_CATC is not set
# CONFIG_USB_CDCETHER is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_USS720 is not set

#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_EMPEG is not set
# CONFIG_USB_SERIAL_FTDI_SIO is not set
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IPAQ is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XA is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XB is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_PL2303 is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OMNINET is not set
# CONFIG_USB_RIO500 is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

------=_NextPart_000_0051_01C1EC42.9542E370
Content-Type: application/octet-stream;
	name=".config"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename=".config"

#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
CONFIG_MODULES=y
# CONFIG_MODVERSIONS is not set
CONFIG_KMOD=y

#
# Processor type
#
# CONFIG_PA7100 is not set
# CONFIG_PA7200 is not set
CONFIG_PA7100LC=y
# CONFIG_PA8X00 is not set
CONFIG_PA11=y

#
# General options
#
# CONFIG_SMP is not set
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_KWDB is not set
CONFIG_IOMMU_CCIO=y
CONFIG_GSC=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_ISA=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_SUPERIO=y
CONFIG_PCI_NAMES=y

#
# General setup
#
CONFIG_HOTPLUG=y
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Parallel port support
#
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_PC_CML1=m
# CONFIG_PARPORT_SERIAL is not set
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_PC_PCMCIA is not set
# CONFIG_PARPORT_AMIGA is not set
# CONFIG_PARPORT_MFC3 is not set
# CONFIG_PARPORT_ATARI is not set
CONFIG_PARPORT_GSC=m
# CONFIG_PARPORT_SUNBPP is not set
# CONFIG_PARPORT_OTHER is not set
# CONFIG_PARPORT_1284 is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_LOOP=y
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=y
# CONFIG_NETFILTER is not set
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# ATA/IDE/MFM/RLL support
#
CONFIG_IDE=y

#
# IDE, ATA and ATAPI Block devices
#
CONFIG_BLK_DEV_IDE=y
# CONFIG_BLK_DEV_HD_IDE is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_IDEDISK is not set
# CONFIG_IDEDISK_MULTI_MODE is not set
# CONFIG_BLK_DEV_IDEDISK_VENDOR is not set
# CONFIG_BLK_DEV_IDEDISK_FUJITSU is not set
# CONFIG_BLK_DEV_IDEDISK_IBM is not set
# CONFIG_BLK_DEV_IDEDISK_MAXTOR is not set
# CONFIG_BLK_DEV_IDEDISK_QUANTUM is not set
# CONFIG_BLK_DEV_IDEDISK_SEAGATE is not set
# CONFIG_BLK_DEV_IDEDISK_WD is not set
# CONFIG_BLK_DEV_COMMERIAL is not set
# CONFIG_BLK_DEV_TIVO is not set
# CONFIG_BLK_DEV_IDECS is not set
CONFIG_BLK_DEV_IDECD=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_BLK_DEV_IDESCSI is not set
# CONFIG_BLK_DEV_CMD640 is not set
# CONFIG_BLK_DEV_CMD640_ENHANCED is not set
# CONFIG_BLK_DEV_ISAPNP is not set
# CONFIG_BLK_DEV_RZ1000 is not set
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_SHARE_IRQ is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_BLK_DEV_ADMA=y
# CONFIG_BLK_DEV_OFFBOARD is not set
# CONFIG_IDEDMA_PCI_AUTO is not set
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_PCI_WIP is not set
# CONFIG_IDEDMA_NEW_DRIVE_LISTINGS is not set
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_AEC62XX_TUNING is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_WDC_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_AMD74XX_OVERRIDE is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_HPT34X_AUTODMA is not set
# CONFIG_BLK_DEV_HPT366 is not set
CONFIG_BLK_DEV_NS87415=y
# CONFIG_BLK_DEV_OPTI621 is not set
# CONFIG_BLK_DEV_PDC202XX is not set
# CONFIG_PDC202XX_BURST is not set
# CONFIG_PDC202XX_FORCE is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIS5513 is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_IDE_CHIPSETS is not set
# CONFIG_IDEDMA_AUTO is not set
# CONFIG_IDEDMA_IVB is not set
# CONFIG_DMA_NONPCI is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_ATARAID is not set
# CONFIG_BLK_DEV_ATARAID_PDC is not set
# CONFIG_BLK_DEV_ATARAID_HPT is not set

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=y
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
CONFIG_53C700_USE_CONSISTENT=y
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_NCR53C8XX is not set
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_PQS_PDS is not set
# CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set

#
# PCMCIA SCSI adapter support
#
# CONFIG_SCSI_PCMCIA is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=y
# CONFIG_SUNLANCE is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
CONFIG_HP100=m
CONFIG_NET_ISA=y
# CONFIG_E2100 is not set
# CONFIG_EWRK3 is not set
# CONFIG_EEXPRESS is not set
# CONFIG_EEXPRESS_PRO is not set
# CONFIG_HPLAN_PLUS is not set
# CONFIG_HPLAN is not set
# CONFIG_LP486E is not set
# CONFIG_ETH16I is not set
CONFIG_NE2000=m
CONFIG_NET_PCI=y
CONFIG_PCNET32=m
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
# CONFIG_TULIP_MMIO is not set
# CONFIG_DE4X5 is not set
# CONFIG_DGRS is not set
# CONFIG_DM9102 is not set
# CONFIG_EEPRO100 is not set
# CONFIG_LNE390 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_8139TOO_PIO is not set
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_NEW_RX_RESET is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_RHINE_MMIO is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# PCMCIA network device support
#
# CONFIG_NET_PCMCIA is not set

#
# Input core support
#
CONFIG_INPUT=y
CONFIG_INPUT_KEYBDEV=y
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=y
CONFIG_INPUT_EVDEV=y

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_HP_SDC=m
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
CONFIG_PPDEV=m

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_PC110_PAD is not set

#
# Joysticks
#
CONFIG_INPUT_GAMEPORT=m
# CONFIG_INPUT_NS558 is not set
# CONFIG_INPUT_LIGHTNING is not set
# CONFIG_INPUT_PCIGAME is not set
# CONFIG_INPUT_CS461X is not set
# CONFIG_INPUT_EMU10K1 is not set
CONFIG_INPUT_SERIO=m
# CONFIG_INPUT_SERPORT is not set
# CONFIG_INPUT_ANALOG is not set
# CONFIG_INPUT_A3D is not set
# CONFIG_INPUT_ADI is not set
# CONFIG_INPUT_COBRA is not set
# CONFIG_INPUT_GF2K is not set
# CONFIG_INPUT_GRIP is not set
# CONFIG_INPUT_INTERACT is not set
# CONFIG_INPUT_TMDC is not set
# CONFIG_INPUT_SIDEWINDER is not set
# CONFIG_INPUT_IFORCE_USB is not set
# CONFIG_INPUT_IFORCE_232 is not set
# CONFIG_INPUT_WARRIOR is not set
# CONFIG_INPUT_MAGELLAN is not set
# CONFIG_INPUT_SPACEORB is not set
# CONFIG_INPUT_SPACEBALL is not set
# CONFIG_INPUT_STINGER is not set
# CONFIG_INPUT_DB9 is not set
# CONFIG_INPUT_GAMECON is not set
# CONFIG_INPUT_TURBOGRAFX is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# PCMCIA character devices
#
# CONFIG_PCMCIA_SERIAL_CS is not set

#
# Multimedia devices
#
CONFIG_VIDEO_DEV=m

#
# Video For Linux
#
CONFIG_VIDEO_PROC_FS=y
# CONFIG_I2C_PARPORT is not set
# CONFIG_VIDEO_PMS is not set
# CONFIG_VIDEO_BWQCAM is not set
# CONFIG_VIDEO_CQCAM is not set
CONFIG_VIDEO_CPIA=m
# CONFIG_VIDEO_SAA5249 is not set
# CONFIG_TUNER_3036 is not set
# CONFIG_VIDEO_STRADIS is not set
# CONFIG_VIDEO_ZORAN is not set
# CONFIG_VIDEO_ZORAN_BUZ is not set
# CONFIG_VIDEO_ZORAN_DC10 is not set
# CONFIG_VIDEO_ZORAN_LML33 is not set
# CONFIG_VIDEO_ZR36120 is not set
# CONFIG_VIDEO_MEYE is not set

#
# Radio Adapters
#
# CONFIG_RADIO_CADET is not set
# CONFIG_RADIO_RTRACK is not set
# CONFIG_RADIO_RTRACK2 is not set
# CONFIG_RADIO_AZTECH is not set
# CONFIG_RADIO_GEMTEK is not set
# CONFIG_RADIO_GEMTEK_PCI is not set
# CONFIG_RADIO_MAXIRADIO is not set
# CONFIG_RADIO_MAESTRO is not set
# CONFIG_RADIO_MIROPCM20 is not set
# CONFIG_RADIO_MIROPCM20_RDS is not set
# CONFIG_RADIO_SF16FMI is not set
# CONFIG_RADIO_TERRATEC is not set
# CONFIG_RADIO_TRUST is not set
# CONFIG_RADIO_TYPHOON is not set
# CONFIG_RADIO_ZOLTRIX is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
CONFIG_EXT3_FS=y
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_INTERMEZZO_FS is not set
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
# CONFIG_ZISOFS_FS is not set
# CONFIG_ZLIB_FS_INFLATE is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
CONFIG_NLS=y

#
# Native Language Support
#
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set

#
# Console drivers
#

#
# Frame-buffer support
#
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FB_RIVA is not set
# CONFIG_FB_CLGEN is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
CONFIG_FB_STI=y
# CONFIG_FB_MATROX is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FBCON_ADVANCED is not set
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB32=y
CONFIG_FBCON_STI=y
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set
# CONFIG_FBCON_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y

#
# Sound
#
CONFIG_SOUND=y
# CONFIG_SOUND_BT878 is not set
# CONFIG_SOUND_CMPCI is not set
# CONFIG_SOUND_EMU10K1 is not set
# CONFIG_MIDI_EMU10K1 is not set
# CONFIG_SOUND_FUSION is not set
# CONFIG_SOUND_CS4281 is not set
# CONFIG_SOUND_ES1370 is not set
# CONFIG_SOUND_ES1371 is not set
# CONFIG_SOUND_ESSSOLO1 is not set
# CONFIG_SOUND_MAESTRO is not set
# CONFIG_SOUND_MAESTRO3 is not set
# CONFIG_SOUND_ICH is not set
CONFIG_SOUND_HARMONY=y
# CONFIG_SOUND_RME96XX is not set
# CONFIG_SOUND_SONICVIBES is not set
# CONFIG_SOUND_TRIDENT is not set
# CONFIG_SOUND_MSNDCLAS is not set
# CONFIG_SOUND_MSNDPIN is not set
# CONFIG_SOUND_VIA82CXXX is not set
# CONFIG_MIDI_VIA82CXXX is not set
# CONFIG_SOUND_OSS is not set
# CONFIG_SOUND_TVMIXER is not set

#
# USB support
#
# CONFIG_USB is not set
# CONFIG_USB_UHCI is not set
# CONFIG_USB_UHCI_ALT is not set
# CONFIG_USB_OHCI is not set
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_BLUETOOTH is not set
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_HP8200e is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_HID is not set
# CONFIG_USB_HIDDEV is not set
# CONFIG_USB_KBD is not set
# CONFIG_USB_MOUSE is not set
# CONFIG_USB_WACOM is not set
# CONFIG_USB_DC2XX is not set
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_SCANNER is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_HPUSBSCSI is not set
# CONFIG_USB_IBMCAM is not set
# CONFIG_USB_OV511 is not set
# CONFIG_USB_PWC is not set
# CONFIG_USB_SE401 is not set
# CONFIG_USB_STV680 is not set
# CONFIG_USB_VICAM is not set
# CONFIG_USB_DSBR is not set
# CONFIG_USB_DABUSB is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_CATC is not set
# CONFIG_USB_CDCETHER is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_USS720 is not set

#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_EMPEG is not set
# CONFIG_USB_SERIAL_FTDI_SIO is not set
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IPAQ is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XA is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XB is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_PL2303 is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OMNINET is not set
# CONFIG_USB_RIO500 is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

------=_NextPart_000_0051_01C1EC42.9542E370--



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Subject: [parisc-linux] linux on pa-risc
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Xref: news.gmane.org gmane.linux.ports.parisc:14649

hi, i have an hp workstation whit hp-ux operating system and pa-risc cpu 
(100mhz)
this computer doesn't have any cdrom or floppy drive.

can i install linux on this machine?
what can i do whitout cdrom, i must buy it?

after this upgrade can i run maya for linux ?
thanks



PaboDesign


_________________________________________________________________
Conversa in chat con gli amici in linea, prova MSN Messenger: 
http://messenger.msn.com




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You can find a list of supported models here:
http://mkhppa1.esiee.fr/list.html

As your workstation doesn't have any external devices, you'll need an
aditional Linux/UNIX box to net-boot it. All instructions can be found here:
http://mkhppa1.esiee.fr/parisc-linux-boot/parisc-linux-boot.html#BOOTNETWORK

I'm sorry, I don't know maya.

Hope this helps.


regards,

Kenneth

----- Original Message -----
From: "Patryk Bonzanini" <paboman1@hotmail.com>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Thursday, April 25, 2002 3:09 PM
Subject: [parisc-linux] linux on pa-risc


> hi, i have an hp workstation whit hp-ux operating system and pa-risc cpu
> (100mhz)
> this computer doesn't have any cdrom or floppy drive.
>
> can i install linux on this machine?
> what can i do whitout cdrom, i must buy it?
>
> after this upgrade can i run maya for linux ?
> thanks
>
>
>
> PaboDesign
>
>
> _________________________________________________________________
> Conversa in chat con gli amici in linea, prova MSN Messenger:
> http://messenger.msn.com
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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Subject: Re: [parisc-linux] linux on pa-risc
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Quoth Patryk Bonzanini:
> hi, i have an hp workstation whit hp-ux operating system and pa-risc cpu 
> (100mhz)
> this computer doesn't have any cdrom or floppy drive.

May you live in interesting times.

> can i install linux on this machine?

Yes, over the network.  Kenneth's response to your post has some info
to get you started.

> what can i do whitout cdrom, i must buy it?

If you can find an external SCSI CDROM drive on eBay or through the
place where you obtained your workstation, you will probably find that
useful in the long term.

> after this upgrade can i run maya for linux ?

The Alias|WaveFront Maya for Linux package is only for the i386 (IA32)
platform.  So, no you won't be able to run it.  And even if it were
available for hppa, your poor little 100MHz processor really wouldn't be
cutting it!    =)

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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Hi,

I have been attempting to install on a hp9000/827s

It contains a

A1703-60022 card which has SCSI,parallel and serial interfaces.

The serial port is a D-type connector with 3 rows, and connects to an 8 way
serial splitter, port #1 of which is the console.

No graphics card.

Boot from CD fine,

get the 'You may need to switch console' message.

no further output.....


What I am wondering is if installation is supported via this card, and/or wether
it is referenced differently (i.e. not /dev/ttyS0)

I have a HP 700/96 serial terminal.

Cheers,

Dunc


Remember a Lemon is For Life....     o o
                                      |
                                      ~
Not just for Christmas!


--

purity - clarity - balance :: lemonia . org



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On Sat, Apr 27, 2002 at 12:16:07AM +0100, Dunc wrote:
> I have been attempting to install on a hp9000/827s

According to hp9000_models;
8x7/F10-I40      Old Nova servers    PCXS    NIO, None     NIO(1),NIO(2),NA

Basically, nothing is going to work.  There's some limited support for
the console in these machines, but no support for the SCSI, the Lan or
any other cards.  Sorry.

-- 
Revolutions do not require corporate support.



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Well, my Ebay special C200 "raven" arrived today... and it works!
I plugged in an extra 256Mb RAM and an old 4X scsi cdrom drive,
hooked ye olde dumbe terminal, and pushed yonder button.

I'm impressed, it came with a completely unconfigured HP/UX B11.11
so I got to set up my root password, network, etc. The dang thing
has internet connectivity already!

Now I am in somewhat of a dilemma. I got this bohemoth to be a parisc-linux
box, but one hates to wipe a pristine HP/UX which one got for free :-)

So now it would appear that I am in need of a new hard drive. My 23GB
Seagate Elite will definately not fit inside the case, and I'm using it
on the X86 machine anyways. Back to Ebay...

I can still test out the latest 0.9.3 cdrom image which I will burn
one this weekend. I don't have an EVC adapter yet so I can't test
the STI / X11 yet.

This machine seems to have been mis-advertised and actually contains
an EG board rather than a FX. I am disappointed yet happy because the
EG will run X in linux right?

Thx,

- Doug



Grant Grundler wrote:
> "B. Douglas Hilton" wrote:
> 
>>Hi list!
>>
>>I just subscribed here. I'm on debian-hppa but that doesn't
>>seem to get much traffic, so I'll repost my question here.
> 
> 
> Yeah - parisc-linux is a more appropriate place for the question anyway.
> 
> 
>>I sold it on Ebay and rolled
>>my profits into a C200 with some unspecified FX graphics
>>board.
> 
> 
> Not supported since HP hasn't published the docs for it.
> Almost all the older gfx cards are supported including
> the Vis-EG (PCI or GSC) that you mentioned in you posting
> to debian-hppa.
> 
> grant
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 






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Hello,

by the way, are there plans for supporting the good old machines.
You know, I am interested in writing the drivers for my E55 server
machine, my PDC console driver should help for development here.

I hope we will have a chance to start developing ....

With friendly regards
Christoph P.


Matthew Wilcox wrote:
> 
> On Sat, Apr 27, 2002 at 12:16:07AM +0100, Dunc wrote:
> > I have been attempting to install on a hp9000/827s
> 
> According to hp9000_models;
> 8x7/F10-I40      Old Nova servers    PCXS    NIO, None     NIO(1),NIO(2),NA
> 
> Basically, nothing is going to work.  There's some limited support for
> the console in these machines, but no support for the SCSI, the Lan or
> any other cards.  Sorry.
> 
> --
> Revolutions do not require corporate support.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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pa's,

I recently needed to connect an HIL keyboard to our 715/50 boxes and
was surprised to find that the key mapping was less than correct
(2.4.18-pa22).

--
5. Scorpio Core HIL (10) at 0xf0821000 [2/0/3], versions 0x7, 0x0, 0x73
Found HIL at 0xf0821000, IRQ 94
HIL: keyboard found at id 0
HIL: keymap loaded.
--

Looks okay. But I get all the wrong letters and control commands in 
all the wrong places (e.g. a=x, i=\n).

I've tried on two or three boxes with two or three different keyboards
(have a whole box of HIL keyboards if anyone is in desperate need of
one).

The install is based on 0.9.3 with all the latest apt-get updates.
I stopped running keymap.sh with no adverse effects (since the keymap
is loaded by the HIL driver).

The HIL driver is the old one?
[Character Devices]-[Support for Console on VT]-[HIL kbd support]

CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HIL=y

I also have a serial console enabled.

I haven't tried HP System Device Driver (i8042) yet... (Though from
the looks of it, it's not quite complete?)

Any thoughts? (I've wadded through the list archives but no success).

c.

p.s. This is just the start of my quest to stop the unbliking eye...
     a.k.a. "hardware cusor blinking" ... from _always_ appearing 
     during framebuffer writes.




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On Saturday 27 April 2002 23:11, Carlos O'Donell Jr. wrote:
> I recently needed to connect an HIL keyboard to our 715/50 boxes and
> was surprised to find that the key mapping was less than correct
> (2.4.18-pa22).

Hmm, I've no problems with my HIL keyboard on console.
(In X11 you have of course to use the correct mapping.)

> p.s. This is just the start of my quest to stop the unbliking eye...
>      a.k.a. "hardware cusor blinking" ... from _always_ appearing
>      during framebuffer writes.

Shouldn't be that hard.

Greetings,
Helge




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Helge,

> > p.s. This is just the start of my quest to stop the unbliking eye...
> >      a.k.a. "hardware cusor blinking" ... from _always_ appearing
> >      during framebuffer writes.
> 
> Shouldn't be that hard.
>

I've done a few nasty things to /drivers/video/sti to attempt to
stop the hardware cursor bliking, but I've not succeeded.

Even if I have no console on /dev/fb0 the penguin and blinking
cursor are the first things to appear as the fb device is initialized.

Any hints?

c.




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IMHO all HP hardware is of exceptional quality. I have used their
products for years all the way from RPN calculators, to a Pavilion PC,
to a 715/80, to a C200. They are without a doubt the best computer
company ever. When I was at Penn State, I learned MC68000 assembly
on a HP minicomputer running a whole lab of terminals (we used VI)
and had a great time with it!

I love this new C200 I got. Unfortunately, as a home computer hobbyist,
I cannot afford to purchase their newer hardware, but they seem to be
a great platform to port linux to. Linux is a great home OS because
it has thousands of apps available and makes an excellent experimenter
system. HP/UX is great for high-end engineering apps on the cutting edge
of technology but by the time these systems filter down to the home
user Linux becomes a lot more attractive because the big $$$ CAD apps
have probably been deleted and us experimenters can't afford to license
such things.

I am probably pushing my luck here as this is not really kernel-specific
stuff, but if any cpu's ever made sense they were the HP ones. They had
their crap together in a big way, a pa-risc cpu is a programmer's dream.

Just do it!



Christoph Plattner wrote:
> Hello,
> 
> by the way, are there plans for supporting the good old machines.
> You know, I am interested in writing the drivers for my E55 server
> machine, my PDC console driver should help for development here.
> 
> I hope we will have a chance to start developing ....
> 
> With friendly regards
> Christoph P.
> 
> 
> Matthew Wilcox wrote:
> 
>>On Sat, Apr 27, 2002 at 12:16:07AM +0100, Dunc wrote:
>>
>>>I have been attempting to install on a hp9000/827s
>>
>>According to hp9000_models;
>>8x7/F10-I40      Old Nova servers    PCXS    NIO, None     NIO(1),NIO(2),NA
>>
>>Basically, nothing is going to work.  There's some limited support for
>>the console in these machines, but no support for the SCSI, the Lan or
>>any other cards.  Sorry.
>>
>>--
>>Revolutions do not require corporate support.
>>
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 






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Hi,

When I first booted my 712/60, that was a few months ago, it was running
some old HP-UX version. Also, the clock was running 7 years behind. After
upgrading my box to Linux I tried to set this clock to a more recent point
in time. No luck however, the date command is -for some reason- not working
for me. So I'm using this workaround to set my clock:
hwclock --set --date="04/29/2002 15:22:00", then hwclock --hctosys.
The problem is that the system does not appear to keep track of time when
it's powered off.
So if I shutdown the system, today at 18h00, the date will still be
04/29/2002 - 18h00 if I boot the system tomorrow. Sometimes the date is
reset to 1970. Currently I'm using NTP to bypass this issue.

Any ideas why this is happening? Could it be that some battery is dead?
(According to this site my box should be Y2K compliant:
http://www.wagoneers.com/UNIX/HP-UX/Y2k.html)


Thanks.

Kenneth



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That really sounds like a dead battery problem to me. I don't ave near
the PaRISK experience that I do on intel and sgi. But the symptoms are
identical to to dead battery symptoms on both other platforms.

On Mon, 2002-04-29 at 09:38, kenneth westelinck wrote:
> Hi,
> 
> When I first booted my 712/60, that was a few months ago, it was running
> some old HP-UX version. Also, the clock was running 7 years behind. After
> upgrading my box to Linux I tried to set this clock to a more recent point
> in time. No luck however, the date command is -for some reason- not working
> for me. So I'm using this workaround to set my clock:
> hwclock --set --date="04/29/2002 15:22:00", then hwclock --hctosys.
> The problem is that the system does not appear to keep track of time when
> it's powered off.
> So if I shutdown the system, today at 18h00, the date will still be
> 04/29/2002 - 18h00 if I boot the system tomorrow. Sometimes the date is
> reset to 1970. Currently I'm using NTP to bypass this issue.
> 
> Any ideas why this is happening? Could it be that some battery is dead?
> (According to this site my box should be Y2K compliant:
> http://www.wagoneers.com/UNIX/HP-UX/Y2k.html)
> 
> 
> Thanks.
> 
> Kenneth
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
-- 
James P. Kinney III   \Changing the mobile computing world/
President and CEO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7 





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Cool, will I be able to replace it?

----- Original Message -----
From: "James P. Kinney III" <jkinney@localnetsolutions.com>
To: "kenneth westelinck" <kennywest1@hotmail.com>
Cc: "palinux" <parisc-linux@lists.parisc-linux.org>
Sent: Monday, April 29, 2002 3:49 PM
Subject: Re: [parisc-linux] Problems with hardware clock


> That really sounds like a dead battery problem to me. I don't ave near
> the PaRISK experience that I do on intel and sgi. But the symptoms are
> identical to to dead battery symptoms on both other platforms.
>
> On Mon, 2002-04-29 at 09:38, kenneth westelinck wrote:
> > Hi,
> >
> > When I first booted my 712/60, that was a few months ago, it was running
> > some old HP-UX version. Also, the clock was running 7 years behind.
After
> > upgrading my box to Linux I tried to set this clock to a more recent
point
> > in time. No luck however, the date command is -for some reason- not
working
> > for me. So I'm using this workaround to set my clock:
> > hwclock --set --date="04/29/2002 15:22:00", then hwclock --hctosys.
> > The problem is that the system does not appear to keep track of time
when
> > it's powered off.
> > So if I shutdown the system, today at 18h00, the date will still be
> > 04/29/2002 - 18h00 if I boot the system tomorrow. Sometimes the date is
> > reset to 1970. Currently I'm using NTP to bypass this issue.
> >
> > Any ideas why this is happening? Could it be that some battery is dead?
> > (According to this site my box should be Y2K compliant:
> > http://www.wagoneers.com/UNIX/HP-UX/Y2k.html)
> >
> >
> > Thanks.
> >
> > Kenneth
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> --
> James P. Kinney III   \Changing the mobile computing world/
> President and CEO      \          one Linux user         /
> Local Net Solutions,LLC \           at a time.          /
> 770-493-8244             \.___________________________./
>
> GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
> <jkinney@localnetsolutions.com>
> Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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On Mon, Apr 29, 2002 at 04:18:26PM +0200, kenneth westelinck wrote:
> Cool, will I be able to replace it?

Yes, it's a standard motherboard battery, though i forget the part number
off hand.

-- 
Revolutions do not require corporate support.



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Thanks, I'll try to replace it later this week.

----- Original Message -----
From: "Matthew Wilcox" <willy@debian.org>
To: "kenneth westelinck" <kennywest1@hotmail.com>
Cc: "James P. Kinney III" <jkinney@localnetsolutions.com>; "palinux"
<parisc-linux@lists.parisc-linux.org>
Sent: Monday, April 29, 2002 4:24 PM
Subject: Re: [parisc-linux] Problems with hardware clock


> On Mon, Apr 29, 2002 at 04:18:26PM +0200, kenneth westelinck wrote:
> > Cool, will I be able to replace it?
>
> Yes, it's a standard motherboard battery, though i forget the part number
> off hand.
>
> --
> Revolutions do not require corporate support.
>



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Subject: [parisc-linux] mkraid doesnt work on L2000 with 64-bit kernel
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

I have a dual CPU L2000 and have installed the 0.9.3 release of
PA-RISC Linux and dist-upgraded to the latest unstable Debian
packages. I am running kernel 2.4.9-64, but this problem also occurs
with 2.4.17-64-smp and non-smp, and 2.4.18-64-smp and non-smp.

When I attempt to make a software RAID0 array on 3 1Gb partitions on
3 18.2gb internal SCSI disks, I get this error:

hypo:~# mkraid /dev/md0
handling MD device /dev/md0
analyzing super-block
disk 0: /dev/sdb1, 976880kB, raid superblock at 976768kB
disk 1: /dev/sdc1, 976880kB, raid superblock at 976768kB
disk 2: /dev/sdd1, 976880kB, raid superblock at 976768kB
mkraid: aborted, see the syslog and /proc/mdstat for potential clues.

Syslog says:

hypo:~# tail /var/log/syslog
Apr 30 05:36:34 hypo kernel: sys32_ioctl: Unknown cmd fd(3)
cmd(400c0910) arg(00028a44)
Apr 30 05:36:34 hypo kernel: sys32_ioctl: Unknown cmd fd(4)
cmd(400c0910) arg(bff00350)
Apr 30 05:36:34 hypo kernel: sys32_ioctl: Unknown cmd fd(4)
cmd(80480923) arg(00029390)

/proc/mdstat says:

hypo:~# cat /proc/mdstat
Personalities : [raid0]
read_ahead not set
unused devices: <none>

I've had a look through the archives and found a few posts about
32-bit to 64-bit IOCTLs but nothing seemed to specifically mention
the RAID stuff.

I also had a look in arch/parisc/kernel/ioctl32.c and there were a
couple of lines commented out with comments like "new RAID code is
half merged". Is RAID on 64-bit PA-RISC a work in progress?

Also, I have noticed that the 2nd CPU in the L2000 is always disabled
when I boot with a SMP kernel, errors like SMP: CPU3 is stuck appear
near the start of bootup. (Sorry I don't have any more detail on
these, but I can provide it if needed)

Any ideas/help would be greatly appreciated. I can provide more
details if needed.

Cheers, James

BTW: Great job on the port to PA-RISC :)

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From - Thu Nov 08 21:22:33 2018
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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] wishlist projects, looking for volunteers
Date: Mon, 29 Apr 2002 23:21:37 -0700
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Hi all,

Just thought I'd post a list of some interesting (IMHO) user-space
projects for parisc-linux.  Feel free to volunteer on anything you
find interesting :-) many of these are good ways to learn things about
an OS/architecture that you don't usually have a chance to do so on more
established platforms. Plus there are lots of people (on this list) who
are willing to answer questions :-)

binutils related
- for hppa64-linux binutils, the linker is always putting dynamic
  sections into the resulting binary, even though they are not always
  needed. there is a sketch of how to fix this at 
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-April/016049.html
- hppa's gas can only be compiled as 32-bit only or 64-bit only. it
  would be nice to make it so that it can be compiled to do both (mode
  chosen using a command line switch). this is how sparc handles mixed
  32-bit/64-bit environments

gdb related
- gdb doesn't work very well on hppa, single stepping with step/next
  often does not work (looks like it can't find the stopping point for
  the next statement). needs to be investigated and fixed
- gdb doesn't recognize the dwarf debug info that you get with
  gcc-3.1/gcc-3.2. needs to be enhanced (i think Dave might have already
  done some work in this area)
- we are also in need of a hppa gdb maintainer. anyone interested? :-)

gcc related
- The debian gcc package currently does not build 64-bit compilers. this
  shouldn't be too hard to fix (can use sparc as a template), just needs
  some experimentation to get it packaged properly

Java
- kaffe port to parisc-linux. i got the interpreter working (sorta) but
  many things don't yet work. would be a good project to learn about
  JITs and such...

ltrace
- this is a function-call level tracer (as opposed to strace, which is
  more on the syscall level). The current ltrace source has some
  assumptions about ELF relocation layout that doesn't work on hppa. It
  shouldn't be *hard* to fix this if you understand how pa relocation
  stubs are generated...

glibc
- there seems to be a problem with the loader going into an infinite
  loop when programs are linked with certain libraries that are linked
  against libpthread. Helge had mentioned to me that he's seen this with
  KDE, also things that are linked against the plib library seems to
  have this problem...

c++ fixing
- http://auric.debian.org/~tausq/buildd/hppa-latest.html has a list of
  debian packages that don't yet build on hppa (the ones that are listed
  as "Failed"). many of these are c++ packages that are not coded
  correctly and don't work with the stricter c++ standard enforced by
  the 3.x compilers. try to fix these and file bugs...

i'm sure there are other things i'm missing.....

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/



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Hi Randolph,

Thanks for posting the project wishlist.  You mentioned that these
are specifically user space projects that need doing.  Is there a 
similar wishlist for kernel space projects?  I've got a lot more
experience with kernel (specifically HPUX) than I have with compilers,
linkers, and debuggers.

Chris Moore



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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] RE: wishlist projects, looking for volunteers
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> Thanks for posting the project wishlist.  You mentioned that these
> are specifically user space projects that need doing.  Is there a 
> similar wishlist for kernel space projects?  I've got a lot more
> experience with kernel (specifically HPUX) than I have with compilers,
> linkers, and debuggers.

kernel things are tracked via the parisc-linux bug tracking system. Try
http://bugs.parisc-linux.org/db/pa/lkernel.html

randolph



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Subject: [parisc-linux] Interesting manuals
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Xref: news.gmane.org gmane.linux.ports.parisc:14669

For the proud owners of some old workstations/servers (including me):
http://www.hp.com/workstations/support/archive/index.html



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Xref: news.gmane.org gmane.linux.ports.parisc:14670

> I also had a look in arch/parisc/kernel/ioctl32.c and there were a
> couple of lines commented out with comments like "new RAID code is
> half merged". Is RAID on 64-bit PA-RISC a work in progress?

Yeah, if you're doing it :->  If you'd like to post a patch for
translating those ioctl calls that would be great!  I think proper
translation of the relevent ioctls is all that's needed.

	-P



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From: Jochen Friedrich <jochen@scram.de>
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Subject: [parisc-linux] Patch to enable IrDA :-)
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Hi,

this tiny patch enables the usage of IrDA dongles on the PA-RISC :-)

# cvs diff -u drivers/net/irda/irtty.c arch/parisc/config.in
Index: drivers/net/irda/irtty.c
===================================================================
RCS file: /var/cvs/linux/drivers/net/irda/irtty.c,v
retrieving revision 1.8
diff -u -r1.8 irtty.c
--- drivers/net/irda/irtty.c    2001/11/09 23:36:06     1.8
+++ drivers/net/irda/irtty.c    2002/05/01 00:07:28
@@ -26,6 +26,7 @@

 #include <linux/module.h>
 #include <linux/kernel.h>
+#include <linux/config.h>
 #include <linux/tty.h>
 #include <linux/init.h>
 #include <linux/skbuff.h>
@@ -767,6 +768,9 @@

 #ifdef TIOCM_OUT2 /* Not defined for ARM */
        arg = TIOCM_OUT2;
+#endif
+#ifdef CONFIG_PARISC  /* PA-RISC uses OUT1 as hardware flow control bit 
*/
+       arg |= TIOCM_OUT1;
 #endif
        if (rts)
                arg |= TIOCM_RTS;
Index: arch/parisc/config.in
===================================================================
RCS file: /var/cvs/linux/arch/parisc/config.in,v
retrieving revision 1.39
diff -u -r1.39 config.in
--- arch/parisc/config.in       2001/11/08 21:17:52     1.39
+++ arch/parisc/config.in       2002/05/01 00:07:28
@@ -153,6 +153,8 @@

 source fs/Config.in

+source net/irda/Config.in
+
 if [ "$CONFIG_VT" = "y" ]; then
    mainmenu_option next_comment
    comment 'Console drivers'

Cheers,
--jochen




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Subject: Re: [parisc-linux] Patch to enable IrDA :-)
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>  #ifdef TIOCM_OUT2 /* Not defined for ARM */
>         arg = TIOCM_OUT2;
> +#endif
> +#ifdef CONFIG_PARISC  /* PA-RISC uses OUT1 as hardware flow control bit 
> */
> +       arg |= TIOCM_OUT1;
>  #endif

With these ifdefs for ARM and parisc maybe

	arg = IRDA_MODEM_BITS;

and sticking tha tin the header would be good ?



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"James Braid" wrote:
> When I attempt to make a software RAID0 array on 3 1Gb partitions on
> 3 18.2gb internal SCSI disks, I get this error:

I just wanted to provide confirmation this is only a problem of
the ioctl wrappers missing which are needed by 64-bit kernels.
L2000 requires 64-bit kernel.

I currently have a (hardly used) md0 on my B180:
debian:~# df
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/sde3              1451376    689608    688040  51% /
/dev/sde4              6784352   3743488   2696240  59% /home
/dev/md0              65832516     32836  65130848   1% /var/www
debian:~# cat /etc/raidtab
raiddev /dev/md0
        raid-level              0
        nr-raid-disks           8
        persistent-superblock   1
        chunk-size              8

        device                  /dev/sda
        raid-disk               0
	device                  /dev/sdb
	raid-disk               1
...


grant



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Cool. I have sort of brute forced the ioctl things from sparc64 in,
and the kernel compiles, and I will reboot shortly to test it.

Thanks, James

> I just wanted to provide confirmation this is only a problem of
> the ioctl wrappers missing which are needed by 64-bit kernels.
> L2000 requires 64-bit kernel.
> 
> I currently have a (hardly used) md0 on my B180:
> debian:~# df
> Filesystem           1k-blocks      Used Available Use% Mounted on
> /dev/sde3              1451376    689608    688040  51% /
> /dev/sde4              6784352   3743488   2696240  59% /home
> /dev/md0              65832516     32836  65130848   1% /var/www
> debian:~# cat /etc/raidtab
> raiddev /dev/md0
>         raid-level              0
>         nr-raid-disks           8
>         persistent-superblock   1
>         chunk-size              8
> 
>         device                  /dev/sda
>         raid-disk               0
> 	device                  /dev/sdb
> 	raid-disk               1
> ...
> 
> 
> grant

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Woohoo! Just rebooted the L2000 and RAID is now working on it :)

How do I go about submitting a patch (sorry, I am a complete newbie
to kernel stuff). 

Basically all I have done is copy the RAID section from the sparc64
ioctl32.c into the parisc ioctl32.c file, and fix up the md.h
include.

Just some output:

hypo:/raid# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid5]
read_ahead 1024 sectors
md0 : active raid0 sdd1[2] sdc1[1] sdb1[0]
      2930640 blocks 16k chunks

unused devices: <none>

hypo:/raid# df -k
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/sda4             15458288    848292  13824744   6% /
/dev/sda2                60485     13835     43527  25% /boot
/dev/md0               2884592     32836   2705224   2% /raid

Cheers, James

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On Wed, May 01, 2002 at 01:25:17PM +1200, James Braid wrote:
> Woohoo! Just rebooted the L2000 and RAID is now working on it :)

Yay!  Apply for your "I hacked the PA/Linux kernel" badge at the office ;-)

> How do I go about submitting a patch (sorry, I am a complete newbie
> to kernel stuff). 

If it's small (say <20k), post it here.  If larger, put it on a
website and send a URL.

> Basically all I have done is copy the RAID section from the sparc64
> ioctl32.c into the parisc ioctl32.c file, and fix up the md.h
> include.

Cool.  That works for us ;-)

-- 
Revolutions do not require corporate support.



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"James Braid" wrote:
> How do I go about submitting a patch (sorry, I am a complete newbie
> to kernel stuff). 

grab the cvsrc from
	http://cvs.parisc-linux.org/build-tools/cvsrc?rev=1.2&content-type=text/vnd.viewcvs-markup

and drop that in your ~/.cvsrc.
How-to use anonymous CVS is described on http://cvs.parisc-linux.org/

Basically a patch is the "cvs diff" output of all modified files.

grant



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Okay, well here's my patch for RAID on 64-bit Linux/PA-RISC. This is
the diff of the two files before and after:

8<---- START ----8<

- --- kernel-source-2.4.17-hppa/arch/parisc/kernel/ioctl32.c      Fri
Nov  2 18:54:54 2001
+++ kernel-source-2.4.17-hppa-patch/arch/parisc/kernel/ioctl32.c     
  Wed May  1 03:46:28 2002
@@ -19,9 +19,7 @@
 #include <linux/if.h>
 #include <linux/slab.h>
 #include <linux/hdreg.h>
- -#if 0 /* New RAID code is half-merged... -DaveM */
- -#include <linux/md.h>
- -#endif
+#include <linux/raid/md.h>
 #include <linux/kd.h>
 #include <linux/route.h>
 #include <linux/skbuff.h>
@@ -2880,16 +2878,26 @@ COMPATIBLE_IOCTL(BLKFRASET)
 COMPATIBLE_IOCTL(BLKSECTSET)
 COMPATIBLE_IOCTL(BLKSSZGET)

- -#if 0
- -       /* New RAID code is being merged, fix up to handle
- -        * new RAID ioctls when fully merged in 2.3.x -DaveM
- -        */
- -/* 0x09 */
- -COMPATIBLE_IOCTL(REGISTER_DEV)
- -COMPATIBLE_IOCTL(REGISTER_DEV_NEW)
- -COMPATIBLE_IOCTL(START_MD)
- -COMPATIBLE_IOCTL(STOP_MD)
- -#endif
+/* RAID */
+COMPATIBLE_IOCTL(RAID_VERSION)
+COMPATIBLE_IOCTL(GET_ARRAY_INFO)
+COMPATIBLE_IOCTL(GET_DISK_INFO)
+COMPATIBLE_IOCTL(PRINT_RAID_DEBUG)
+COMPATIBLE_IOCTL(CLEAR_ARRAY)
+COMPATIBLE_IOCTL(ADD_NEW_DISK)
+COMPATIBLE_IOCTL(HOT_REMOVE_DISK)
+COMPATIBLE_IOCTL(SET_ARRAY_INFO)
+COMPATIBLE_IOCTL(SET_DISK_INFO)
+COMPATIBLE_IOCTL(WRITE_RAID_INFO)
+COMPATIBLE_IOCTL(UNPROTECT_ARRAY)
+COMPATIBLE_IOCTL(PROTECT_ARRAY)
+COMPATIBLE_IOCTL(HOT_ADD_DISK)
+COMPATIBLE_IOCTL(SET_DISK_FAULTY)
+COMPATIBLE_IOCTL(RUN_ARRAY)
+COMPATIBLE_IOCTL(START_ARRAY)
+COMPATIBLE_IOCTL(STOP_ARRAY)
+COMPATIBLE_IOCTL(STOP_ARRAY_RO)
+COMPATIBLE_IOCTL(RESTART_ARRAY_RW)

 /* Big K */
 COMPATIBLE_IOCTL(PIO_FONT)

8<---- END ----8<

Hopefully this is the right format and everything. I have been
testing it for a few hours and it seems to work fine.

Cheers, James

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-----BEGIN PGP SIGNED MESSAGE-----
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Damnit, Outlook screwed up the patch. Lets try again:

- --- kernel-source-2.4.17-hppa/arch/parisc/kernel/ioctl32.c      Fri
Nov  2 18:54:54 2001
+++ kernel-source-2.4.17-hppa-patch/arch/parisc/kernel/ioctl32.c     
  Wed May  1 03:46:28 2002
@@ -19,9 +19,7 @@
 #include <linux/if.h>
 #include <linux/slab.h>
 #include <linux/hdreg.h>
- -#if 0 /* New RAID code is half-merged... -DaveM */
- -#include <linux/md.h>
- -#endif
+#include <linux/raid/md.h>
 #include <linux/kd.h>
 #include <linux/route.h>
 #include <linux/skbuff.h>
@@ -2880,16 +2878,26 @@ COMPATIBLE_IOCTL(BLKFRASET)
 COMPATIBLE_IOCTL(BLKSECTSET)
 COMPATIBLE_IOCTL(BLKSSZGET)

- -#if 0
- -       /* New RAID code is being merged, fix up to handle
- -        * new RAID ioctls when fully merged in 2.3.x -DaveM
- -        */
- -/* 0x09 */
- -COMPATIBLE_IOCTL(REGISTER_DEV)
- -COMPATIBLE_IOCTL(REGISTER_DEV_NEW)
- -COMPATIBLE_IOCTL(START_MD)
- -COMPATIBLE_IOCTL(STOP_MD)
- -#endif
+/* RAID */
+COMPATIBLE_IOCTL(RAID_VERSION)
+COMPATIBLE_IOCTL(GET_ARRAY_INFO)
+COMPATIBLE_IOCTL(GET_DISK_INFO)
+COMPATIBLE_IOCTL(PRINT_RAID_DEBUG)
+COMPATIBLE_IOCTL(CLEAR_ARRAY)
+COMPATIBLE_IOCTL(ADD_NEW_DISK)
+COMPATIBLE_IOCTL(HOT_REMOVE_DISK)
+COMPATIBLE_IOCTL(SET_ARRAY_INFO)
+COMPATIBLE_IOCTL(SET_DISK_INFO)
+COMPATIBLE_IOCTL(WRITE_RAID_INFO)
+COMPATIBLE_IOCTL(UNPROTECT_ARRAY)
+COMPATIBLE_IOCTL(PROTECT_ARRAY)
+COMPATIBLE_IOCTL(HOT_ADD_DISK)
+COMPATIBLE_IOCTL(SET_DISK_FAULTY)
+COMPATIBLE_IOCTL(RUN_ARRAY)
+COMPATIBLE_IOCTL(START_ARRAY)
+COMPATIBLE_IOCTL(STOP_ARRAY)
+COMPATIBLE_IOCTL(STOP_ARRAY_RO)
+COMPATIBLE_IOCTL(RESTART_ARRAY_RW)

 /* Big K */
 COMPATIBLE_IOCTL(PIO_FONT)

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From: "James Braid" <james.braid@peace.com>
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Subject: RE: [parisc-linux] mkraid doesnt work on L2000 with 64-bit kernel
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Xref: news.gmane.org gmane.linux.ports.parisc:14680

Arrrgh, sorry for this. Take 3:

--- kernel-source-2.4.17-hppa/arch/parisc/kernel/ioctl32.c      Fri Nov
2 18:54:54 2001
+++ kernel-source-2.4.17-hppa-patch/arch/parisc/kernel/ioctl32.c
Wed May  1 03:46:28 2002
@@ -19,9 +19,7 @@
 #include <linux/if.h>
 #include <linux/slab.h>
 #include <linux/hdreg.h>
-#if 0 /* New RAID code is half-merged... -DaveM */
-#include <linux/md.h>
-#endif
+#include <linux/raid/md.h>
 #include <linux/kd.h>
 #include <linux/route.h>
 #include <linux/skbuff.h>
@@ -2880,16 +2878,26 @@ COMPATIBLE_IOCTL(BLKFRASET)
 COMPATIBLE_IOCTL(BLKSECTSET)
 COMPATIBLE_IOCTL(BLKSSZGET)

-#if 0
-       /* New RAID code is being merged, fix up to handle
-        * new RAID ioctls when fully merged in 2.3.x -DaveM
-        */
-/* 0x09 */
-COMPATIBLE_IOCTL(REGISTER_DEV)
-COMPATIBLE_IOCTL(REGISTER_DEV_NEW)
-COMPATIBLE_IOCTL(START_MD)
-COMPATIBLE_IOCTL(STOP_MD)
-#endif
+/* RAID */
+COMPATIBLE_IOCTL(RAID_VERSION)
+COMPATIBLE_IOCTL(GET_ARRAY_INFO)
+COMPATIBLE_IOCTL(GET_DISK_INFO)
+COMPATIBLE_IOCTL(PRINT_RAID_DEBUG)
+COMPATIBLE_IOCTL(CLEAR_ARRAY)
+COMPATIBLE_IOCTL(ADD_NEW_DISK)
+COMPATIBLE_IOCTL(HOT_REMOVE_DISK)
+COMPATIBLE_IOCTL(SET_ARRAY_INFO)
+COMPATIBLE_IOCTL(SET_DISK_INFO)
+COMPATIBLE_IOCTL(WRITE_RAID_INFO)
+COMPATIBLE_IOCTL(UNPROTECT_ARRAY)
+COMPATIBLE_IOCTL(PROTECT_ARRAY)
+COMPATIBLE_IOCTL(HOT_ADD_DISK)
+COMPATIBLE_IOCTL(SET_DISK_FAULTY)
+COMPATIBLE_IOCTL(RUN_ARRAY)
+COMPATIBLE_IOCTL(START_ARRAY)
+COMPATIBLE_IOCTL(STOP_ARRAY)
+COMPATIBLE_IOCTL(STOP_ARRAY_RO)
+COMPATIBLE_IOCTL(RESTART_ARRAY_RW)

 /* Big K */
 COMPATIBLE_IOCTL(PIO_FONT)




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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] mkraid doesnt work on L2000 with 64-bit kernel
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In reference to a message from James Braid, dated May 01:
> Arrrgh, sorry for this. Take 3:

commited to cvs:
* -pa23
* RAID ioctl fixes for 64-bit kernels; contributed by "James Braid" 
  <james.braid@peace.com>

thanks
randolph



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From: Thibaut VARENE <varenet@esiee.fr>
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Hello !

We are proud to announce that the new French mirror of parisc-linux.org 
website is now online !

It will be accessible soon (time of DNS spread) at:
http://www.fr.parisc-linux.org/

and at:
http://parisc-linux.esiee.fr/

Enjoy !

We're currently updating both parisc-linux.org and pateam.esiee.fr 
(formerly mkhppa1) to reflect the new mirroring scheme.


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Hi all!

http://www.parisc-linux.org is now "in sync" as well!

Many thanks to ESIEE team (thibaut, thomas, clement, others?)
for the many weeks of work they put into this!

This is a big step towards providing local translations of
the web site and merging content of both sites into one!

thanks again!
grant

Thibaut VARENE wrote:
> Hello !
> 
> We are proud to announce that the new French mirror of parisc-linux.org 
> website is now online !
> 
> It will be accessible soon (time of DNS spread) at:
> http://www.fr.parisc-linux.org/
> 
> and at:
> http://parisc-linux.esiee.fr/
> 
> Enjoy !
> 
> We're currently updating both parisc-linux.org and pateam.esiee.fr 
> (formerly mkhppa1) to reflect the new mirroring scheme.
> 
> 
> Thibaut VARENE
> PA/Linux ESIEE Team
> http://pateam.esiee.fr/


Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253



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From: Ralf Hildebrandt <Ralf.Hildebrandt@charite.de>
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Subject: [parisc-linux] 700x?
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What is a HP 700x (or x700) machine? An X Terminal?

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
NT: Insert wallet into drive A: and press any key to empty.




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Am 02.05.2002 um 10:54:32 -0400 schrieb John David Anglin folgendes:
> > What is a HP 700x (or x700) machine? An X Terminal?
> 
> Yes (700/RX).  In theory, it should be possible to install the software
> to run it under parisc-linux.

Right now I'm thinking of removing the menory from it and stick it
into my 712/80. If possible?!

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Any technology sufficiently advanced is indistinguishable from magic.




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On Thursday 02 May 2002 16:49, Ralf Hildebrandt wrote:
> What is a HP 700x (or x700) machine? An X Terminal?

Yes.

Helge



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> Am 02.05.2002 um 10:54:32 -0400 schrieb John David Anglin folgendes:
> > > What is a HP 700x (or x700) machine? An X Terminal?
> > 
> > Yes (700/RX).  In theory, it should be possible to install the software
> > to run it under parisc-linux.
> 
> Right now I'm thinking of removing the menory from it and stick it
> into my 712/80. If possible?!

I believe the 700/RX uses standard SIMMs.  The ones I have came with
4MB SIMMs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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>>>>> "Ralf" == Ralf Hildebrandt <Ralf.Hildebrandt@charite.de> writes:

Ralf> What is a HP 700x (or x700) machine? An X Terminal?

This is a (very old) X terminal...

        M.
-- 
Places change, faces change. Life is so very strange.



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> What is a HP 700x (or x700) machine? An X Terminal?

Yes (700/RX).  In theory, it should be possible to install the software
to run it under parisc-linux.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Hi Randolph,

On Mon, Apr 29, 2002 at 11:21:37PM -0700, Randolph Chung wrote:
> ltrace
> - this is a function-call level tracer (as opposed to strace, which is
>   more on the syscall level). The current ltrace source has some
>   assumptions about ELF relocation layout that doesn't work on hppa. It
>   shouldn't be *hard* to fix this if you understand how pa relocation
>   stubs are generated...

Had a bit of a look at this; basically it wants to set breakpoints on
all the stubs for library calls from the target program.  On i386 that's
easy, as the reloc gives you an entry in the .plt, which is an indirect
jmp - so it just sets a breakpoint on that jmp.  The fact that the
loaction it indirects through initially points at the dynamic linker
code, and then is later fixed up to point to the library directly is
irrelevant.

On parisc, our .plt entry is just a function address plus data pointer
pair.  Where the mainline code calls a library function there is a
call to a stub that reads the .plt entry and jumps to the location it
references.  Initially that .plt entry will point at the dynamic linker
code, before being fixed up to reference the library function.

So, ideally we want to set a breakpoint on the stub that references the
.plt entry, but I don't see how we can locate that.  We only have a
reference to the .plt entry address, right?

(a) have I got that basically right?, and
(b) did you have any ideas on how we might make ltrace work?

Cheers,
  Richard




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Hi,

We have an HP K250 dual 160 MHz CPU machine in one of the rooms here. It 
was never fully used, since the OS media and support costs were very high.

They are considering pitching it. Can one install palinux on this box?

It is extremely noisy and the size of a small refrigerator. Do you think 
it is worth keeping?
-- 
     Rafael




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I have 4 J-class machines available for anyone who wants 'em.
I'm in Palo Alto.

-Tim
connors@hpl.hp.com

3 J210
1 J282



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Is it worth keeping a dual CPU K250
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"Rafael E. Herrera" wrote:
> It is extremely noisy and the size of a small refrigerator. Do you think 
> it is worth keeping?

I don't...but I expect Ryan (rbrad) to disagree with me...but it's
helluva faster than the PDPs some people are keeping alive.

I've stopped mucking with HW that I can't lift into a rack by myself. ;^)
Someday I'll break that rule when an N-class gets donated...

grant



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From: Phil Anderson <andersop@bob.ncssm.edu>
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Subject: [parisc-linux] 7xx class machines
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While we're on the subject of available machines, I have 2 available 735's 
and 2 755's, as well as 2 712's. I know X works on the 712's under palinus 
but both machines need new hard drives. Also, the FWdiff on the 735's 
isn't supported, but if you have a HD on the SE bus apparently you can get 
X working just fine. I'm in the Durham, NC area... let me know.

-phil


On Thu, 2 May 2002, Tim Connors wrote:

> I have 4 J-class machines available for anyone who wants 'em.
> I'm in Palo Alto.
> 
> -Tim
> connors@hpl.hp.com
> 
> 3 J210
> 1 J282
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 
===============================================================================

Phil Anderson
UNIX Systems Administrator
andersop@neverland.ncssm.edu
The_13th_Ewok@hotmail.com

the me that you know he used to have feelings
but the blood has stopped pumping and he is left to decay
the me that you know is now made up of wires
and even when i'm right with you i'm so far away
					-nine inch nails, the becoming




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John David Anglin wrote:

>>What is a HP 700x (or x700) machine? An X Terminal?
>>
>
>Yes (700/RX).  In theory, it should be possible to install the software to run it under parisc-linux.
>
700X != 700/RX

I have the bits to boot a 700/RX & I might still have them for a 700X as 
well, if anyone needs them.

-chuck





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On Thursday 02 May 2002 16:54, John David Anglin wrote:
> > What is a HP 700x (or x700) machine? An X Terminal?
>
> Yes (700/RX).  In theory, it should be possible to install the software
> to run it under parisc-linux.

For the software and installation instructions you may want to look at:
http://www.ductape.net/~brianm/xterm/

Greetings,
Helge



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Just curious,

The link http://www.ductape.net/~brianm/xterm/
<http://www.ductape.net/~brianm/xterm/> , tells how to use enware on Envizex
X-terminals.
Can't the run hp-linux?

Hans

	-----Original Message-----
	From:	Helge Deller [SMTP:deller@gmx.de]
	Sent:	Friday, May 03, 2002 8:16 AM
	To:	Ralf.Hildebrandt@charite.de
	Cc:	parisc-linux@lists.parisc-linux.org
	Subject:	Re: [parisc-linux] 700x?

	On Thursday 02 May 2002 16:54, John David Anglin wrote:
	> > What is a HP 700x (or x700) machine? An X Terminal?
	>
	> Yes (700/RX).  In theory, it should be possible to install the
software
	> to run it under parisc-linux.

	For the software and installation instructions you may want to look
at:
	http://www.ductape.net/~brianm/xterm/

	Greetings,
	Helge

	_______________________________________________
	parisc-linux mailing list
	parisc-linux@lists.parisc-linux.org
	http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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On Friday 03 May 2002 08:46, Witvliet, Hans wrote:
> Just curious,
>
> The link http://www.ductape.net/~brianm/xterm/
> <http://www.ductape.net/~brianm/xterm/> , tells how to use enware on
> Envizex X-terminals.
> Can't the run hp-linux?
>
> Hans

No. 
Envizex and 700/RX are just simple X11 terminals
and the only thing they run is a X11 server to display 
X apps coming from an X server. The X server on the other side
could be a PA-Linux or any other Unix/Linux machine.

Greetings,
Helge




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On Thu, May 02, 2002 at 03:15:13PM -0400, Rafael E. Herrera wrote:
> Hi,
> 
> We have an HP K250 dual 160 MHz CPU machine in one of the rooms here. It 
> was never fully used, since the OS media and support costs were very high.
> 
> They are considering pitching it. Can one install palinux on this box?

For the moment, you need Christoph Plattner's serial console driver and
some modification to the install image.  See the mailing list archives
for more details (hmm, anyone want to put together a K-class installing
howto?)

> It is extremely noisy and the size of a small refrigerator. Do you think 
> it is worth keeping?

Depends how much you're willing to hack around.  K class support won't be
as smooth as the other machines for some time.  Some of the devices may
never end up being supported (though centronics, single ended scsi, lan
and keyboard should all work already).  Looking at the K250 in the HWDB,
the Skunk Centronics & SCSI card, the GeckoBOA card, the Eole CAP/MUX and
the GSY Core FW-SCSI will probably end up being supported, but probably
not the Interphase 100BaseTX NIO card.  My crystal ball is second-rate,
however, and when I say `eventually', I mean `in a year or two'.

-- 
Revolutions do not require corporate support.



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I wrote:
> I have 4 J-class machines available for anyone who wants 'em.

Thanks for all of your responses.  I have more requests than machines :-(
so if you haven't responsed yet, its too late.

-Tim




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"Witvliet, Hans" wrote:
> Can't the run hp-linux?

Sorry to pick nits, but this bothers me.
It's called "parisc-linux" or for the debian impaired "hppa-linux". 

The community is driving this project right now, not HP.

grant



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pa,

-pa23

linux/arch/parisc/traps.c

    159                 cr30 = mfctl(30);
    160                 cr31 = mfctl(31);
    161                 stack_start = sp & ~(ISTACK_SIZE - 1);
    162                 if (stack_start == cr31) {
...
    189                 }
    190                 else
    191                 {
    192                     /* Stack Dump! */
    193                     printk(KERN_CRIT "WARNING! Stack pointer and cr30 do not correspond!\n");
    194                     printk(KERN_CRIT "Dumping virtual address stack instead\n");
    195                     dump_stack((unsigned long)__va(stack_start), (unsigned long)__va(sp), 0);
    196                 }

Line 193:

	Why do we say cr30 does not correspond to stack pointer?

c.




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Hi,

Sorry to sound ignorant here but I just got me a K200.  Specs are hard
to come by.  I am wondering if I can install Linux on this or not.
Is this machine 32 bit or 64 bit?

Which are the corect iso images?

Thanks


Grahame Jordan
-- 




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parisc,

kdb-parisc patches for -pa23 can be found at:

http://www.baldric.uwo.ca/~carlos/kdb-parisc/

No feature enhancements or bug fixes, just a 'it works with -pa23' changes.
There were only a few changes to be made to /arch/parisc/kernel/traps.c.
I put together the changes based on the -pa11 kdb patches. 

c.




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On 4 May 2002, Grahame Jordan wrote:
> Sorry to sound ignorant here but I just got me a K200.  Specs are hard
> to come by.  I am wondering if I can install Linux on this or not.
> Is this machine 32 bit or 64 bit?
>
> Which are the corect iso images?

Well, according to the hardware list I built (from ESIEE and
parisc-linux.org info) the K200 is a PA7200 (PCX-T') chip, 32-bit CPU and
system. The note from 0.9.3's release is that the generic default install
may fail, but that a K410 (single-CPU) worked. I haven't heard anything
since then, so it looks like the K200 should work.

If you'd like to browse (or if there's updates to what works)
http://www.alaskatech.org/pa-risc/PARISC-Systems.htm is what I was able to
dig up... Feel free to send me updates.




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Subject: [parisc-linux] gcc-3.? compiler for hppa (3.1, 3.1+dwarf2, 3.2cvs20020429?)
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Subject: [parisc-linux] Re: gcc-3.? compiler for hppa (3.1, 3.1+dwarf2, 3.2cvs20020429?)
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> a) 3.1 as to be released (without dwarf2 support)
> b) 3.1 + dwarf2 support
> c) 3.2 CVS 20020429 plus/minus patches

for woody+1, is it an option to skip 3.1 altogether and go directly to
3.2? from what i understand gcc-3.2 is supposed to be officially 
released in the fall...  (i.e. likely before the next release)

i am concerned that between gcc versions, there are often changes in the
C++ (and maybe others) ABI, and moving all of our packages to the new 
version is likely going to be a painful process. If the g++-3.2 ABI is
already frozen (?) and we move directly to it then we may save ourselves
some trouble with doing the repackaging multiple times.

of course there is also the concern that we want to remain at least
somewhat binary compatible with other distributions...

IMHO, for hppa I think a pure option (a) is not feasible for woody+1. 
The long branch problem by itself is something that I feel needs to 
be addressed as soon as possible. Also I'm eager to have working
exceptions support for c++ :-)

Oh, by the way, when we move woody to gcc-3.[12] as the default, will we
still have gcc-3.0 packages available?

randolph



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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] gcc-3.? compiler for hppa (3.1, 3.1+dwarf2, 3.2cvs20020429?)
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> While preparing gcc-3.1 packages I noticed many eh-related regressions
> fixed in the trunk, when dwarf2 support was added. With Dave's
> guidance I made a diff of the pa subdirectory from the trunk and
> applied it to the branch. Although many FAILS are gone, there are some
> new (diff below).

In general, option b has much better c++ results than a).  The c++
test results are essentially identical to those with 3.2.  However,
compared to the results that I have been posting for 3.2, we have
the following new failures:

gcc.c-torture/execute/ieee/rbug.c

g77.f-torture/execute/19990313-[0-3].f

20_util/allocator_members.cc execution test
22_locale/codecvt_members_char_char.cc execution test
22_locale/codecvt_members_wchar_t_char.cc execution test
22_locale/ctor_copy_dtor.cc execution test
22_locale/ctype_members_wchar_t.cc execution test
27_io/ostream_inserter_arith.cc execution test

It would probably be useful to compare test results for b and c.  It may
be that some of the above are glibc or system problems.  I am fairly
certain c will build on all platforms.  However, I know that there is
one c regression under hppa near the beginning of march.  There is another
at the beginning of May.

As a matter of release philosophy, I don't much like hybrids.  Option
b adds another permutation to maintain even if the new c++ capabilities
are very tempting.  My focus will be 3.2.  3.1 will only get small bug
fixes.  If we keep to the main releases, it much easier to verify and
resolve bugs.

So, I would say use a as the default.  This is the conservative choice
and well tested across a broad range of systems.  Option a can easily be
used to build c.  Maybe you could include c as well for experimental
development and building c++ packages that need the dw2 support under
parisc-linux.

> I would like to get feedback, on which alternative to base the gcc-3.1
> packages:
> 
> a) 3.1 as to be released (without dwarf2 support)
> b) 3.1 + dwarf2 support
> c) 3.2 CVS 20020429 plus/minus patches
> 
> Constraints: Make gcc-3.1 the default compiler for all Debian
> architectures in the near future, provided it builds on all of them.
> 
> a) is the default option to go with.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: Re: [parisc-linux] Re: gcc-3.? compiler for hppa (3.1, 3.1+dwarf2, 3.2cvs20020429?)
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> i am concerned that between gcc versions, there are often changes in the
> C++ (and maybe others) ABI, and moving all of our packages to the new 
> version is likely going to be a painful process. If the g++-3.2 ABI is
> already frozen (?) and we move directly to it then we may save ourselves
> some trouble with doing the repackaging multiple times.

I know that there are some small ABI changes between libstdc++ 3.1 and
3.2.  This got mentioned in discussion of a PR that I filed concerning
the library under hpux.  Under hpux, all applications that were linked
against the 3.0 library needed to be relinked when the 3.0.1 library
was installed :-(

I still haven't figured out why libstdc++ needs to be installed prior
to running the testsuite.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: [parisc-linux] Re: gcc-3.? compiler for hppa (3.1, 3.1+dwarf2, 3.2cvs20020429?)
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Matthias Klose <doko@cs.tu-berlin.de> writes:

> I would like to get feedback, on which alternative to base the gcc-3.1
> packages:
> 
> a) 3.1 as to be released (without dwarf2 support)

As Redhat has demonstrated in the past, it is highly desirable that
the distributed gcc is based on a released gcc as close as possible.
If there are serious problems in gcc 3.1-as-released, work with gcc
maintainers to fix them in 3.1.1.

Regards,
Martin




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Subject: [parisc-linux] Re: gcc-3.? compiler for hppa (3.1, 3.1+dwarf2, 3.2cvs20020429?)
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On Sun, May 05, 2002 at 08:54:06AM +0200, Martin v. Loewis wrote:
> Matthias Klose <doko@cs.tu-berlin.de> writes:
> 
> > I would like to get feedback, on which alternative to base the gcc-3.1
> > packages:
> > 
> > a) 3.1 as to be released (without dwarf2 support)
> 
> As Redhat has demonstrated in the past, it is highly desirable that
> the distributed gcc is based on a released gcc as close as possible.
> If there are serious problems in gcc 3.1-as-released, work with gcc
> maintainers to fix them in 3.1.1.

Completely seconded.  I want the collection of patches that
distributors ship with GCC to shrink over time, not grow...

-- 
Daniel Jacobowitz                           Carnegie Mellon University
MontaVista Software                         Debian GNU/Linux Developer



From - Thu Nov 08 21:22:36 2018
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From: Alexander Gabert <pappy@nikita.ath.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] grsecurity patch 2.4.18
Date: Sun, 5 May 2002 13:28:53 +0200
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hi, could someone please take a look at the following patch:

http://nikita.ath.cx/users/pappy/parisc/grsec/2418grsec.patch

it is a modified www.grsecurity.net/grsecurity-1.9.4-2.4.18.patch

i took kernel-source-2.4.18-hppa.tar from debian and tried to make the
grsecurity patch work with this hppa tree.

please tell me if i made any mistakes in making it fit (especially in
the fs/exec.c and mm.h section, where assumptions about the stack are
being made, i am a beginner :-)

thank you in advance,

alex

--=20
pub  1024/05E1A80C 2001/12/16 Alexander Gabert (http://nikita.ath.cx) <papp=
y@nikita.ath.cx>
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From: Matthias Klose <doko@cs.tu-berlin.de>
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Subject: [parisc-linux] Re: gcc-3.? compiler for hppa (3.1, 3.1+dwarf2, 3.2cvs20020429?)
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Daniel Jacobowitz writes:
> On Sun, May 05, 2002 at 08:54:06AM +0200, Martin v. Loewis wrote:
> > Matthias Klose <doko@cs.tu-berlin.de> writes:
> > 
> > > I would like to get feedback, on which alternative to base the gcc-3.1
> > > packages:
> > > 
> > > a) 3.1 as to be released (without dwarf2 support)
> > 
> > As Redhat has demonstrated in the past, it is highly desirable that
> > the distributed gcc is based on a released gcc as close as possible.
> > If there are serious problems in gcc 3.1-as-released, work with gcc
> > maintainers to fix them in 3.1.1.
> 
> Completely seconded.  I want the collection of patches that
> distributors ship with GCC to shrink over time, not grow...

I see, I was unclear, the alternatives were hppa specific, I didn't
even think of using anything else than the release ...



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Subject: Re: [parisc-linux] gcc-3.? compiler for hppa (3.1, 3.1+dwarf2, 3.2cvs20020429?)
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> this is a diff of the test results for b and c. g++ is worse, the

I think all the new g++ fails are in new tests.  So, I don't think
g++ is actually worse.

> regressions for g77 and gcc are new test cases in the trunk. One new
> gcc regression:

Yes, gcc.c-torture/compile/20000504-1.c is a regression.  It's good
to see the g77 fails go away.

> Ada doesn't build:
> ../../xgcc -B../../ -c -g -O2 -g -O2 -W -Wall -gnatpg -I. -I/home/packages/gcc/try/gcc-3.1-3.1ds90/src/gcc/ada s-taprop.adb
> s-taprop.adb:48:12: warning: no entities of "Os_Primitives" are referenced
> make[4]: *** [s-taprop.o] Error 1
> make[4]: Leaving directory `/home/packages/gcc/try/gcc-3.1-3.1ds90/build/gcc/ada/rts'

The enclosed patch fixes the compilation error.  However, Florian hasn't
installed it.  I'll try and get an update on its status.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

>From fw@deneb.enyo.de Sun Apr 28 16:44:10 EDT 2002
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From: Florian Weimer <fw@deneb.enyo.de>
To: John David Anglin <dave@HIAULY1.HIA.NRC.CA>
Cc: dave.anglin@nrc.ca, gcc-gnats@gcc.gnu.org
Subject: Re: ada/6495: no entities of "Os_Primitives" are referenced
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"John David Anglin" <dave@hiauly1.hia.nrc.ca> writes:

>> dave.anglin@nrc.ca writes:
>> 
>> > s-taprop.adb:48:12: warning: no entities of "Os_Primitives" are
referenced
>> 
>> Could you please look at the file s-taprop.adb in the gcc/ada/rts and
>> check which version it is?  After the copyright string, there should
>> be a comment like this one:
>> 
>> --  This is a POSIX-like version of this package
>
> Says
>
> --  This is a no tasking version of this package

Thanks.  Could you try the following patch, please?

--- 5ntaprop.adb.~1.3.~	Sun Mar 17 09:08:21 2002
+++ 5ntaprop.adb	Sun Apr 28 22:42:59 2002
@@ -45,9 +45,6 @@
 --  used for Ada_Task_Control_Block
 --           Task_ID
 
-with System.OS_Primitives;
---  used for Delay_Modes

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Subject: Re: [parisc-linux] gcc-3.? compiler for hppa (3.1, 3.1+dwarf2, 3.2cvs20020429?)
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John David Anglin writes:
> Thanks.  Could you try the following patch, please?

yes, allows the bootstrap.

> --- 5ntaprop.adb.~1.3.~	Sun Mar 17 09:08:21 2002
> +++ 5ntaprop.adb	Sun Apr 28 22:42:59 2002
> @@ -45,9 +45,6 @@
>  --  used for Ada_Task_Control_Block
>  --           Task_ID
>  
> -with System.OS_Primitives;
> ---  used for Delay_Modes
> -
>  with System.Error_Reporting;
>  --  used for Shutdown
>  
> @@ -55,7 +52,6 @@
>  
>     use System.Tasking;
>     use System.Parameters;
> -   use System.OS_Primitives;
>  
>     -----------------
>     -- Stack_Guard --
> 



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Matthias Klose wrote:
> Sm9obiBEYXZpZCBBbmdsaW4gd3JpdGVzOg0KPiA+IFdoaWxlIHByZXBhcmluZyBnY2MtMy4x
> IHBhY2thZ2VzIEkgbm90aWNlZCBtYW55IGVoLXJlbGF0ZWQgcmVncmVzc2lvbnMNCj4gPiBm
...

Matthias (and others),
base64 encoded email doesn't archive well:
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016205.html

Please avoid if you can.

thanks,
grant



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] grsecurity patch 2.4.18
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Alexander Gabert wrote:
> hi, could someone please take a look at the following patch:
> 
> http://nikita.ath.cx/users/pappy/parisc/grsec/2418grsec.patch

Uhm, I was going to take a "quick look" and noticed:
	Length: 1,619,914 [text/plain]

Before I spend half a day looking at this, can you point to more
information that summarizes the changes?

thanks,
grant

ps I'm impressed that a "beginner" would take a whack at this.



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Whenever I turn off my 712/80 and turn it back on, NTP (ntpq) reports
an offset of about 1200.
Question: Could it be that at shutdown the time is not stored in the
on-board real-time-clock?

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Gates' Law: Every 18 months, the speed of software halves.




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Am 06.05.2002 um 08:44:02 +0200 schrieb Ralf Hildebrandt folgendes:
> Whenever I turn off my 712/80 and turn it back on, NTP (ntpq) reports
> an offset of about 1200.
> Question: Could it be that at shutdown the time is not stored in the
> on-board real-time-clock?

I find this intriguing:

gecko:~# hwclock --show
Mon May  6 08:46:27 2002  -0.994167 seconds
gecko:~# hwclock --systohc
gecko:~# hwclock --show
Mon May  6 08:46:33 2002  -0.999854 seconds

So the hardwareclock is never set.
Which setting in "Character Devices" do I need so hwclock can access
the on-board real-time-clock?
 < > /dev/nvram support
 < > Enhanced Real Time Clock Support 

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
There are two ways to write error-free programs. Only the third one
works.




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You'll need to set this option: CONFIG_GENRTC=y

----- Original Message -----
From: "Ralf Hildebrandt" <Ralf.Hildebrandt@charite.de>
To: "Ralf Hildebrandt" <Ralf.Hildebrandt@charite.de>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Monday, May 06, 2002 8:52 AM
Subject: Re: [parisc-linux] NTP and the real time clock


> Am 06.05.2002 um 08:44:02 +0200 schrieb Ralf Hildebrandt folgendes:
> > Whenever I turn off my 712/80 and turn it back on, NTP (ntpq) reports
> > an offset of about 1200.
> > Question: Could it be that at shutdown the time is not stored in the
> > on-board real-time-clock?
>
> I find this intriguing:
>
> gecko:~# hwclock --show
> Mon May  6 08:46:27 2002  -0.994167 seconds
> gecko:~# hwclock --systohc
> gecko:~# hwclock --show
> Mon May  6 08:46:33 2002  -0.999854 seconds
>
> So the hardwareclock is never set.
> Which setting in "Character Devices" do I need so hwclock can access
> the on-board real-time-clock?
>  < > /dev/nvram support
>  < > Enhanced Real Time Clock Support
>
> --
> Ralf Hildebrandt (Im Auftrag des Referat V A)
Ralf.Hildebrandt@charite.de
> Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450
570-155
> Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450
570-916
> There are two ways to write error-free programs. Only the third one
> works.
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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Hi,

The 700/RX might be a simple X-terminal,
But Envizex-II can run (some simple) application locally.
It is some time ago, but i remember that I could launch remote shells on a
Envizex. (get/set config, ps and floppy operations)
I hoped that (someday) they could boot linux from flash...

Hans

	-----Original Message-----
	From:	Helge Deller [SMTP:helge.deller@sap.com]
	Sent:	Friday, May 03, 2002 12:46 PM
	To:	Witvliet, Hans; 'Helge Deller'; Ralf.Hildebrandt@charite.de
	Cc:	parisc-linux@lists.parisc-linux.org
	Subject:	Re: [parisc-linux] old hardware

	On Friday 03 May 2002 08:46, Witvliet, Hans wrote:
	> Just curious,
	>
	> The link http://www.ductape.net/~brianm/xterm/
	> <http://www.ductape.net/~brianm/xterm/> , tells how to use enware
on
	> Envizex X-terminals.
	> Can't the run hp-linux?
	>
	> Hans

	No. 
	Envizex and 700/RX are just simple X11 terminals
	and the only thing they run is a X11 server to display 
	X apps coming from an X server. The X server on the other side
	could be a PA-Linux or any other Unix/Linux machine.

	Greetings,
	Helge



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> I find this intriguing:
> 
> gecko:~# hwclock --show
> Mon May  6 08:46:27 2002  -0.994167 seconds
> gecko:~# hwclock --systohc
> gecko:~# hwclock --show
> Mon May  6 08:46:33 2002  -0.999854 seconds
> 
> So the hardwareclock is never set.

Are you sure?

legolas:/usr/src/linux-ide# hwclock --show
Mon May  6 00:05:08 2002  -0.995996 seconds
legolas:/usr/src/linux-ide# date 050600002002
Mon May  6 00:00:00 PDT 2002
legolas:/usr/src/linux-ide# hwclock --systohc
legolas:/usr/src/linux-ide# hwclock --show
Mon May  6 00:00:23 2002  -0.999298 seconds

> Which setting in "Character Devices" do I need so hwclock can access
> the on-board real-time-clock?
>  < > /dev/nvram support
>  < > Enhanced Real Time Clock Support 

You want: "Generic RTC device support" (I think it's on by default). The
fact that hwclock didn't give you an error suggests to me that you
already have that enabled.

randolph



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Am 06.05.2002 um 01:03:29 -0700 schrieb Randolph Chung folgendes:

> > So the hardwareclock is never set.
> 
> Are you sure?

Well, no.
 
> legolas:/usr/src/linux-ide# hwclock --show
> Mon May  6 00:05:08 2002  -0.995996 seconds
> legolas:/usr/src/linux-ide# date 050600002002
> Mon May  6 00:00:00 PDT 2002
> legolas:/usr/src/linux-ide# hwclock --systohc
> legolas:/usr/src/linux-ide# hwclock --show
> Mon May  6 00:00:23 2002  -0.999298 seconds

OK, seems to work.
But what is that "-0.999298 seconds" stuff?

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
When the government outlaws cryptography, bayl pevzvanyf jvyy unir
cevinpl. 




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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: gcc-3.? compiler for hppa (3.1, 3.1+dwarf2, 3.2cvs20020429?)
Date: Mon, 6 May 2002 10:32:12 -0400
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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> > i am concerned that between gcc versions, there are often changes in the
> > C++ (and maybe others) ABI, and moving all of our packages to the new 
> > version is likely going to be a painful process. If the g++-3.2 ABI is
> > already frozen (?)

The C++ ABI is done, but there were minor bugs in 3.0's implementation of
that ABI.  The bugs were fixed in 3.1, thus the change.

The libstdc++ ABI is /not/ stable yet.


> I still haven't figured out why libstdc++ needs to be installed prior
> to running the testsuite.

That's weird... nothing immediately comes to mind.


Phil

-- 
If ye love wealth greater than liberty, the tranquility of servitude greater
than the animating contest for freedom, go home and leave us in peace.  We seek
not your counsel, nor your arms.  Crouch down and lick the hand that feeds you;
and may posterity forget that ye were our countrymen.            - Samuel Adams



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From: "James Braid" <james.braid@peace.com>
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Subject: [parisc-linux] Dodgy SCSI in L2000
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Xref: news.gmane.org gmane.linux.ports.parisc:14726

Okay, I have got my RAID array working now :-)

BUT...

The box dies if I thrash the array with dbench (using anymore than 10
clients), or sometimes when making a filesystem on the array (I have
been able to make a filesystem about once every ten times).

It does the same thing on both SMP and non-SMP kernels.

The raid array looks okay (its 18Gb * 3 in RAID0):

hypo:~# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid5]
read_ahead 1024 sectors
md0 : active raid0 scsi/host4/bus0/target2/lun0/part1[2]
scsi/host4/bus0/target0/lun0/part1[1]
scsi/host0/bus0/target2/lun0/part1[0]
      53320656 blocks 4k chunks

unused devices: <none>

Now, I try to make a ext2 FS on the array, and it dies like so:

hypo:~# mke2fs /dev/md0
mke2fs 1.27 (8-Mar-2002)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
6668288 inodes, 13330164 blocks
666508 blocks (5.00%) reserved for the super user
First data block=0
407 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632,
2654208,
        4096000, 7962624, 11239424

Writing inode tables: done
Writing superblocks and filesystem accounting information:
^^^^ dies here, just hangs the login session

In the window I have open to the GSP (in a console session) on the
L2000, I see this:

sym4:0:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:0:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:0:0: ABORT operation timed-out.
sym0:0:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:0:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:0:0: DEVICE RESET operation started.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:0:0: DEVICE RESET operation timed-out.
sym0:2:0: DEVICE RESET operation started.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:2:0: DEVICE RESET operation timed-out.
sym0:0:0: BUS RESET operation started.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:0:0: BUS RESET operation timed-out.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:0:0: BUS RESET operation started.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:0:0: BUS RESET operation timed-out.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:2:0: BUS RESET operation started.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:2:0: BUS RESET operation timed-out.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:2:0: BUS RESET operation started.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:2:0: BUS RESET operation timed-out.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:2:0: BUS RESET operation started.
sym4:2:0: ABORT operation timed-out.
sym4:0:0: DEVICE RESET operation started.
sym0:2:0: BUS RESET operation timed-out.
sym4:0:0: DEVICE RESET operation timed-out.
sym4:2:0: DEVICE RESET operation started.
sym0:2:0: BUS RESET operation started.
sym4:2:0: DEVICE RESET operation timed-out.
sym4:0:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sym4: SCSI BUS reset detected.
sym4: SCSI BUS has been reset.
sym4:0:0: BUS RESET operation complete.
sym0:2:0: BUS RESET operation complete.
sym4:0:0: ABORT operation started.
sym0:0:0: ABORT operation started.
sym0:0:0: ABORT operation timed-out.
sym0:0:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym0:0:0: ABORT operation timed-out.
sym0:0:0: ABORT operation started.
sym0:0:0: ABORT operation timed-out.
sym0:0:0: ABORT operation started.
sym0:0:0: ABORT operation timed-out.
sym0:0:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:0:0: ABORT operation started.
sym4:0:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.
sym0:0:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym0:2:0: ABORT operation timed-out.
sym0:2:0: ABORT operation started.
sym4:2:0: ABORT operation timed-out.
sym4:2:0: ABORT operation started.

Which loops over and over and over and over..

It also does the same thing using the sym5c8xx version 1 driver as well
as the version 2 driver (the above errors are from the version 2
driver).

At this point the box is totally unusable.

I then hit CTRL-\, and got this:

May  7 16:23:16 hypo kernel:
May  7 16:23:16 hypo kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
May  7 16:23:16 hypo kernel: PSW: 00000000000000000000000000000000 Not
tainted
May  7 16:23:16 hypo kernel: r00-03  0000000000000000 0000000040050d00
000000004003d8bb 00000000000291a0
May  7 16:23:16 hypo kernel: r04-07  0000000000000000 0000000040051500
00000000000290a0 0000000000000004
May  7 16:23:16 hypo kernel: r08-11  0000000040051500 0000000000cb8000
0000000000000197 0000000000036890
May  7 16:23:16 hypo kernel: r12-15  0000000000038ad0 0000000000000197
0000000000000800 0000000000000040
May  7 16:23:16 hypo kernel: r16-19  000000000000ffff 0000000000000001
0000000000000004 00000000401d9ab0
May  7 16:23:16 hypo kernel: r20-23  0000000000000076 00000000401d9ab0
00000000401646a8 00000000bff005c8
May  7 16:23:16 hypo kernel: r24-27  0000000000001000 0000000000035880
0000000000000003 0000000000027b18
May  7 16:23:16 hypo kernel: r28-31  0000000000000000 0000000000000032
00000000bff00440 00000000401646b3
May  7 16:23:16 hypo kernel: sr0-3   0000000000000480 0000000000000480
0000000000000000 0000000000000480
May  7 16:23:16 hypo kernel: sr4-7   0000000000000480 0000000000000480
0000000000000480 0000000000000480
May  7 16:23:16 hypo kernel:
May  7 16:23:16 hypo kernel: IASQ: 0000000000000480 0000000000000480
IAOQ: 0000000040113a2f 0000000040113a33
May  7 16:23:16 hypo kernel:  IIR: 6b540028    ISR: 0000000000000480
IOR: 000000000003d000
May  7 16:23:16 hypo kernel:  CPU:        0   CR30: 000000004c1bc000
CR31: 0000000010460000
May  7 16:23:16 hypo kernel:  ORIG_R28: 0000000000000000


After this has finished dumping, the box is usable again.

One thing I have noticed with mke2fs is that the indode table numbers
tick away pretty fast until it gets to 205, then it slows down big time,
and then it speeds up again until it gets to ~340, at which point the
scsi ABORT errors will sometimes start happening.

I have tested all the disks individually (making filesystems, running
dbench), and the filesystems get made fine, and dbench works okay up to
about 100 odd clients.

I have *no* idea what is causing any of this....anyone else have any
hints/info/fixes for this problem? (Sorry for the long email, but I
figured it would be best to paste the full errors)

I can provide clarification or more details if needed.

Cheers, James




From - Thu Nov 08 21:22:37 2018
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From: Alexander Gabert <pappy@nikita.ath.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [pappy: Re: [parisc-linux] grsecurity patch 2.4.18]
Date: Tue, 7 May 2002 07:42:01 +0200
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basically, what we are trying to do is getting either lids or grsec to
work with a 2418-hppa kernel.

the first steps were with "normal" lids, which bombed at early stage
(shortly after init mounted the rootfs, even with security=3D0)

then i tried to make grsecurity patch fit the hppa kernel (but without
deeper knowledge about the differences between i386 stacks and hppa
stack layout i cannot make any code redesign in the stack protector and
the like), the grsec patch did not even build, so i assume, i made a
little mistake somewhere or the patch is not "proposed" to build
platform-independent.
i guess, i will have to look through parisc mem mgmt and proc arch
documentation before i can continue to make the patch fit

current situation:
with some minor changes 2418-hppa-lsm-lids compiles clean, boots, but
the "modprobe lids" in the box gives the following:
drehmoos:/lib/modules/2.4.18-lsm/kernel/security/lids# modprobe lids

=2E.. dmesg output ...

break 0,0: pid=3D236 command=3D'modprobe'
modprobe (pid 236): Breakpoint (code 0)
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
    =20
PSW: 00000000000001101111010100001111 Not tainted
r00-03  00000000 00044810 0003b8d0 0003a000
r04-07  1b360000 401f51e8 ffffffea 401eb008
r08-11  00000004 00000060 00000004 1b360000
r12-15  1b361000 1bb048a0 1b538550 00000003
r16-19  000444fc 00044cfc 00000000 00000040
r20-23  0000000f 01000000 0003b8bc 00000000
r24-27  00000000 00000000 000449b8 102b6010
r28-31  00000000 000006c0 1b538680 10117e6c
sr0-3   00000000 00000000 00000000 00000346
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 00034200 00034204
 IIR: 00000000    ISR: 00000000  IOR: 00000000
  CPU:        0   CR30: 1b538000 CR31: 10330000
   ORIG_R28: 102c6810

=2E...=20


after logging in via ssh and just trying to reinsert it a second time,
the module enters:
drehmoos:~# modprobe lids
drehmoos:~# lsmod
Module                  Size  Used by    Not tainted
lids                  500780   1  (initializing)

drehmoos:~# lidsadm -V
VIEW
open: No such file or directory
lidsadm: cannot open /proc/sys/lids/locks

drehmoos:~# ls /proc/sys/lids
ls: /proc/sys/lids: No such file or directory

looks like there is some exercise left to the reader :-)

anyway, i gotta go to work now, it is 7:30 in the morning in .de and my
boss is likely to kill me for being late :-)

bye, pappy

--=20
pub  1024/05E1A80C 2001/12/16 Alexander Gabert (http://nikita.ath.cx) <papp=
y@nikita.ath.cx>
          Key fingerprint =3D  2D 84 B0 CB F5 67 8A 22  8D 37 6E 6B 8A 3B 7=
F D6  05 E1 A8 0C

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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Dodgy SCSI in L2000
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"James Braid" wrote:
> Okay, I have got my RAID array working now :-)
> 
> BUT...

Which kernel version?


> In the window I have open to the GSP (in a console session) on the
> L2000, I see this:
> 
> sym4:0:0: ABORT operation started.
> sym4:0:0: ABORT operation timed-out.
> sym4:0:0: ABORT operation started.
> sym4:0:0: ABORT operation timed-out.
...

This suggests something is wrong with that device.
Are all RAID0 disks internal? Or connected to external box?
I see further down they seem to be working fine individually.

...
> It also does the same thing using the sym5c8xx version 1 driver as well
> as the version 2 driver (the above errors are from the version 2
> driver).

Can you post lspci -v output from you L2000?
I just want to verify the built-in SCSI chips are the
same as on my A500: sym53c896.

...
> One thing I have noticed with mke2fs is that the indode table numbers
> tick away pretty fast until it gets to 205, then it slows down big time,
> and then it speeds up again until it gets to ~340, at which point the
> scsi ABORT errors will sometimes start happening.

I noticed the slow down/speed up when I built the RAID0 on the B180 as well.
No idea what causes it though.

> I have tested all the disks individually (making filesystems, running
> dbench), and the filesystems get made fine, and dbench works okay up to
> about 100 odd clients.

Can you try running two different dbench instances at the some time on
two different disks?

I had to steal the serial port from my A500 or I could do more
to at least reproduce this.

> I have *no* idea what is causing any of this....anyone else have any
> hints/info/fixes for this problem? (Sorry for the long email, but I
> figured it would be best to paste the full errors)
> 
> I can provide clarification or more details if needed.
> 
> Cheers, James
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253



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Subject: RE: [parisc-linux] Dodgy SCSI in L2000
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> Which kernel version?
Ooops, forgot to include this, its:

2.4.18-pa24, and
2.4.18-pa23 
 
> This suggests something is wrong with that device.
> Are all RAID0 disks internal? Or connected to external box?
> I see further down they seem to be working fine individually.

All disks are internal disks in the hotswap cage thing, connected to the
core I/O board (? not sure if that's what its called , it's a big board
with 3 SCSI cables on it and the ethernet jack/external SCSI). All the
disks are plugged into this, two disks per cable, and the DVD on its own
cable.

> Can you post lspci -v output from you L2000?
> I just want to verify the built-in SCSI chips are the
> same as on my A500: sym53c896.

Sure:

hypo:~# lspci -v
00:00.0 Ethernet controller: Digital Equipment Corporation DECchip
21142/43 (rev 41)
        Subsystem: Hewlett-Packard Company: Unknown device 104f
        Flags: bus master, medium devsel, latency 128, IRQ 128
        I/O ports at 0080 [size=128]
        Memory at fffffff0 (32-bit, non-prefetchable) [size=1K]
        Expansion ROM at fffff800 [size=256K]

00:01.0 SCSI storage controller: LSI Logic / Symbios Logic (formerly
NCR) 53c896 (rev 05)
        Flags: bus master, medium devsel, latency 0, IRQ 129
        I/O ports at 0100 [size=256]
        Memory at fffffff0 (64-bit, non-prefetchable) [size=1K]
        Memory at fffffff0 (64-bit, non-prefetchable) [size=8K]
        Capabilities: [40] Power Management version 2

00:01.1 SCSI storage controller: LSI Logic / Symbios Logic (formerly
NCR) 53c896 (rev 05)
        Flags: bus master, medium devsel, latency 0, IRQ 130
        I/O ports at 0200 [size=256]
        Memory at fffffff0 (64-bit, non-prefetchable) [size=1K]
        Memory at fffffff0 (64-bit, non-prefetchable) [size=8K]
        Capabilities: [40] Power Management version 2

00:02.0 SCSI storage controller: LSI Logic / Symbios Logic (formerly
NCR) 53c875 (rev 14)
        Flags: bus master, medium devsel, latency 0, IRQ 130
        I/O ports at 0300 [size=256]
        Memory at fffffff0 (32-bit, non-prefetchable) [size=256]
        Memory at fffffff0 (32-bit, non-prefetchable) [size=4K]

00:02.1 SCSI storage controller: LSI Logic / Symbios Logic (formerly
NCR) 53c875 (rev 14)
        Flags: bus master, medium devsel, latency 0, IRQ 131
        I/O ports at 0400 [size=256]
        Memory at fffffff0 (32-bit, non-prefetchable) [size=256]
        Memory at fffffff0 (32-bit, non-prefetchable) [size=4K]

00:04.0 Serial controller: Hewlett-Packard Company: Unknown device 1048
(rev 02) (prog-if 02 [16550])
        Subsystem: Hewlett-Packard Company: Unknown device 1049
        Flags: bus master, medium devsel, latency 0, IRQ 132
        BIST result: 00
        Memory at fffffff0 (32-bit, non-prefetchable) [size=4K]
        I/O ports at 0040 [size=64]

00:05.0 Serial controller: Hewlett-Packard Company: Unknown device 1048
(rev 02) (prog-if 02 [16550])
        Subsystem: Hewlett-Packard Company: Unknown device 104a
        Flags: medium devsel, IRQ 133
        BIST result: 00
        Memory at fffffff0 (32-bit, non-prefetchable) [size=4K]
        I/O ports at 0500 [size=64]

08:02.0 SCSI storage controller: QLogic Corp. ISP1020 Fast-wide SCSI
(rev 05)
        Subsystem: QLogic Corp.: Unknown device 0000
        Flags: medium devsel, IRQ 194
        I/O ports at 10000 [disabled] [size=256]
        Memory at fffffff0 (32-bit, non-prefetchable) [disabled]
[size=4K]
        Expansion ROM at fffff800 [size=64K]

08:03.0 SCSI storage controller: QLogic Corp. ISP1020 Fast-wide SCSI
(rev 05)
        Subsystem: QLogic Corp.: Unknown device 0000
        Flags: medium devsel, IRQ 195
        I/O ports at 10100 [disabled] [size=256]
        Memory at fffffff0 (32-bit, non-prefetchable) [disabled]
[size=4K]
        Expansion ROM at fffff800 [size=64K]

20:00.0 SCSI storage controller: LSI Logic / Symbios Logic (formerly
NCR) 53c875 (rev 04)
        Flags: bus master, medium devsel, latency 0, IRQ 384
        I/O ports at 40000 [size=256]
        Memory at fffffff0 (32-bit, non-prefetchable) [size=256]
        Memory at fffffff0 (32-bit, non-prefetchable) [size=4K]
        Expansion ROM at fffff800 [size=64K]

The Qlogic cards I put in as I was going to move the scsi drives onto
them, but then I found out that the Qlogic ISP driver doesn't compile
for PA-RISC (doh!). The problem happens with or without the Qlogic
boards in there.

> Can you try running two different dbench instances at the some time on
> two different disks?

On three disks (sdb/sdc/sdd):

hypo:/sdb# dbench 10
10 clients started
..........

hypo:/sdc# dbench 10
10 clients started
..............

hypo:/sdd# dbench 10
10 clients started
........................................................................
................................................

None of them finish, and I get a ton of both bus and device
RESETS/ABORTS on the GSP terminal.

On two disks (sdc/sdc):

hypo:/sdb# dbench 10
10 clients started
......................................

hypo:/sdc# dbench 10
10 clients started
...............

Pretty much the same thing, lots of RESETS/ABORTS. I can post these if
needed, but its pretty much just more of what was in my first message.
It all goes pear shaped after this with lots of I/O errors and EXT2
errors, e.g.

EXT2-fs error (device sd(8,17)): ext2_write_inode: unable to read inode
block - inode=1357217, block=2719749
 I/O error: dev 08:11, sector 9961512
 I/O error: dev 08:11, sector 0

I will try again with dbench on just one disk at a time as well.

Thanks, James.




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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] kdb patches for -pa23 ... moooo!
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Hi Carlos,

Well I well get your patch which I apply successfully against pa23.

On the other hand, I also reach to rebuild a toolchain with gcc-3.1 (some
difficulties with 3.2).

So to try to figure out what the problem is with kernel IP compile with gcc >
3.1, I try to compile kernel 2.4.18-pa23-kdb with gcc 3.1. But without any
experience with kdb the operation failled with following message:

gcc -D__KERNEL__
-I/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing
-fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1
-mschedule=7100   -DKBUILD_BASENAME=traps  -c -o traps.o traps.c
traps.c:50:23: linux/kdb.h: No such file or directory
traps.c: In function `die_if_kernel':
traps.c:310: warning: implicit declaration of function `kdb'
traps.c:310: `KDB_REASON_OOPS' undeclared (first use in this function)
traps.c:310: (Each undeclared identifier is reported only once
traps.c:310: for each function it appears in.)
traps.c: In function `handle_break':
traps.c:383: `KDB_BREAK_ENTER_INSN' undeclared (first use in this function)
traps.c:384: `KDB_REASON_ENTER' undeclared (first use in this function)
traps.c:387: `KDB_BREAK_BREAK_INSN' undeclared (first use in this function)
traps.c:388: `KDB_REASON_BREAK' undeclared (first use in this function)
traps.c: In function `handle_interruption':
traps.c:657: `KDB_REASON_DEBUG' undeclared (first use in this function)
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/include/asm/irq.h: At
top level:
traps.c:130: warning: `dump_stack' defined but not used
make[1]: *** [traps.o] Error 1
make[1]: Leaving directory
`/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kernel'
make: *** [_dir_arch/parisc/kernel] Error 2
Mon May  6 20:52:40 CEST 2002

Hmm the patch put kdb.h in include/asm-parisc but all #include refer to linux/kdb.h?

There should be also some problem with my .config where I select 
CONFIG_KDB=y
CONFIG_KDB_MODULES=y
# CONFIG_KDB_OFF is not set
CONFIG_KALLSYMS=y

(the rest is obtain for a common make oldconfig for PA7000 processor type)

Thanks in advance for additionnal help,
    Joel

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Hi, 
I recently ran across some HP 9000 715/80 and 712/60 computers at a garage 
sale and bought 4 systems for 70 dollars. There is no operating system on the 
computers and no cd-rom drive. My question is how can a get PA-Risc Linux 
installed on these machines because I can't seem to get the systems to boot 
from the floppy drive. What is the best way to get PA-Risc Linux installed on 
the systems. Any information will be greatly appreciated. Thank you.

Derrick McCray

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<HTML><FONT FACE=arial,helvetica><FONT  SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Hi, <BR>
I recently ran across some HP 9000 715/80 and 712/60 computers at a garage sale and bought 4 systems for 70 dollars. There is no operating system on the computers and no cd-rom drive. My question is how can a get PA-Risc Linux installed on these machines because I can't seem to get the systems to boot from the floppy drive. What is the best way to get PA-Risc Linux installed on the systems. Any information will be greatly appreciated. Thank you.<BR>
<BR>
Derrick McCray</FONT></HTML>

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Xref: news.gmane.org gmane.linux.ports.parisc:14732

On Tue, May 07, 2002 at 04:10:14AM -0400, DerrickMcCray@aol.com wrote:
> Hi, 
> I recently ran across some HP 9000 715/80 and 712/60 computers at a garage 
> sale and bought 4 systems for 70 dollars. There is no operating system on the 
> computers and no cd-rom drive. My question is how can a get PA-Risc Linux 
> installed on these machines because I can't seem to get the systems to boot 
> from the floppy drive. What is the best way to get PA-Risc Linux installed on 
> the systems. Any information will be greatly appreciated. Thank you.

Floppy is not correctly supported.

You should be able to network boot them without much trouble.  See
<http://www.tldp.org/HOWTO/PA-RISC-Linux-Boot-HOWTO/> for pointers.  You
can start a debian install by booting a lifimage from:
<http://ftp.uk.debian.org/debian/dists/woody/main/disks-hppa/3.0.22-2002-04-03/lifimage>

Richard




From - Thu Nov 08 21:22:38 2018
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From: Ralf Hildebrandt <Ralf.Hildebrandt@charite.de>
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Subject: Re: [parisc-linux] HP 9000 systems
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Xref: news.gmane.org gmane.linux.ports.parisc:14733

On Tue, May 07, 2002 at 04:10:14AM -0400, DerrickMcCray@aol.com wrote:
> Hi, 
> I recently ran across some HP 9000 715/80 and 712/60 computers at a garage 
> sale and bought 4 systems for 70 dollars. There is no operating system on the 

Way to go!

> computers and no cd-rom drive. My question is how can a get PA-Risc Linux 
> installed on these machines because I can't seem to get the systems to boot 
> from the floppy drive. What is the best way to get PA-Risc Linux installed on 
> the systems. Any information will be greatly appreciated. Thank you.

Either you get a SCSI CD-ROM to boot from and use the 0.9.3 or better
ISO image or your boot from a DHCP/BOOTP server:

http://pateam.esiee.fr/parisc-linux-boot/parisc-linux-boot.html#BOOTNETWORK

Warning: This may not be for the faint of heart.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
Hiding in another office where he can work without getting interrupted. 




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Subject: Re: [parisc-linux] kdb patches for -pa23 ... moooo!
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Xref: news.gmane.org gmane.linux.ports.parisc:14734

Hey,

in fact, I find that it is missing following files in include/linux:
kdb.h; kallsyms.h; dis-asm.h; kdbprivate.h.

Never the less, after ( make dep; make clean ; make vmlinux ) this last still
failled with message:

`gcc -print-libgcc-file-name`
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/lib/lib.a
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/lib/lib.a
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o  \
	--end-group \
	-o vmlinux
arch/parisc/kernel/kernel.o: In function `.L202':
arch/parisc/kernel/kernel.o(.text.die_if_kernel+0x110): undefined reference to `kdb'
arch/parisc/kernel/kernel.o: In function `.L223':
arch/parisc/kernel/kernel.o(.text.handle_break+0xd8): undefined reference to `kdb'
arch/parisc/kernel/kernel.o: In function `.L396':
arch/parisc/kernel/kernel.o(.text.handle_interruption+0x4e8): undefined
reference to `kdb'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `bt_print_one':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.bt_print_one+0xc):
undefined reference to `kdb_symbol_print'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `kdba_bt_stack':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_bt_stack+0x34):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L111':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_bt_stack+0xd0):
undefined reference to `kdbnearsym'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_bt_stack+0x120):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `kdba_db_trap':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x0):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x30):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L149':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x44):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L150':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x6c):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x74):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x78):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L152':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x88):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x8c):
undefined reference to `kdb_breakpoints'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x9c):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0xa0):
undefined reference to `kdb_breakpoints'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0xa4):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L157':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0xd0):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L165':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0xfc):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x100):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x10c):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x118):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x124):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x12c):
more undefined references to `kdb_state' follow
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L187':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x154):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x164):
undefined reference to `kdb_symbol_print'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x16c):
undefined reference to `kdb_id1'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x174):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x17c):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x1a0):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L188':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x1a8):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L162':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x1c8):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x1cc):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x1f0):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L189':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x1f8):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x224):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L190':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x230):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L191':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_db_trap+0x23c):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `kdba_bp_trap':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_bp_trap+0x4):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_bp_trap+0x14):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L194':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_bp_trap+0x20):
undefined reference to `kdb_breakpoints'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_bp_trap+0x2c):
undefined reference to `kdb_breakpoints'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_bp_trap+0x70):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_bp_trap+0x78):
undefined reference to `kdb_id1'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_bp_trap+0xa0):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `kdba_handle_bp':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_handle_bp+0x20):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_handle_bp+0x28):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L209':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_handle_bp+0x3c):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_handle_bp+0x40):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_handle_bp+0x48):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L207':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_handle_bp+0x70):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L212':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_handle_bp+0x78):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `kdba_printbpreg':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_printbpreg+0x10):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `kdba_printbp':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_printbp+0x10):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L216':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_printbp+0x54):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `kdba_parsebp':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_parsebp+0x88):
undefined reference to `kdbgetularg'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_parsebp+0x114):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_parsebp+0x1a0):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_parsebp+0x1a4):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L237':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_parsebp+0x1d8):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `kdba_installbp':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_installbp+0x0):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_installbp+0x2c):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L269':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_installbp+0x50):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L270':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_installbp+0x90):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L288':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_installbp+0x9c):
undefined reference to `kdb_getarea_size'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_installbp+0xb8):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_installbp+0xd4):
undefined reference to `kdb_putarea_size'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_installbp+0xe4):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L289':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_installbp+0x120):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L290':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_installbp+0x148):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_installbp+0x16c):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L291':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_installbp+0x180):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `kdba_removebp':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_removebp+0x0):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_removebp+0x20):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L294':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_removebp+0x34):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L297':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_removebp+0x94):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L310':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_removebp+0x9c):
undefined reference to `kdb_flags'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L299':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_removebp+0xf8):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L311':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_removebp+0x110):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `get_serial_char':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.get_serial_char+0x84):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L116':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.get_serial_char+0x9c):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L143':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.get_kbd_char+0x148):
undefined reference to `kdb_printf'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.get_kbd_char+0x1b0):
more undefined references to `kdb_printf' follow
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `kdba_setpc':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_setpc+0xc):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_setpc+0x18):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_setpc+0x20):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `kdba_main_loop':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_main_loop+0xc):
undefined reference to `kdb_main_loop'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `.L189':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_adjust_ip+0x18):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_adjust_ip+0x1c):
undefined reference to `kdb_state'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `kdba_printaddress':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_printaddress+0x48):
undefined reference to `kdbnearsym'
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o:
In function `kdba_dis_getmem':
/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kdb/kdba.o(.text.kdba_dis_getmem+0x10):
undefined reference to `kdb_getarea_size'
make: *** [vmlinux] Error 1
Tue May  7 17:38:12 CEST 2002

And, excepted usual fpu warning, I do not see any additional warning explaining
this.

Any idea?

Thanks,
    Joel

Quoting joel.soete@freebel.net:

> Hi Carlos,
> 
> Well I well get your patch which I apply successfully against pa23.
> 
> On the other hand, I also reach to rebuild a toolchain with gcc-3.1
> (some
> difficulties with 3.2).
> 
> So to try to figure out what the problem is with kernel IP compile with
> gcc >
> 3.1, I try to compile kernel 2.4.18-pa23-kdb with gcc 3.1. But without
> any
> experience with kdb the operation failled with following message:
> 
> gcc -D__KERNEL__
> -I/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/include
> -Wall
> -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer
> -fno-strict-aliasing
> -fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
> -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1
> -mschedule=7100   -DKBUILD_BASENAME=traps  -c -o traps.o traps.c
> traps.c:50:23: linux/kdb.h: No such file or directory
> traps.c: In function `die_if_kernel':
> traps.c:310: warning: implicit declaration of function `kdb'
> traps.c:310: `KDB_REASON_OOPS' undeclared (first use in this function)
> traps.c:310: (Each undeclared identifier is reported only once
> traps.c:310: for each function it appears in.)
> traps.c: In function `handle_break':
> traps.c:383: `KDB_BREAK_ENTER_INSN' undeclared (first use in this
> function)
> traps.c:384: `KDB_REASON_ENTER' undeclared (first use in this function)
> traps.c:387: `KDB_BREAK_BREAK_INSN' undeclared (first use in this
> function)
> traps.c:388: `KDB_REASON_BREAK' undeclared (first use in this function)
> traps.c: In function `handle_interruption':
> traps.c:657: `KDB_REASON_DEBUG' undeclared (first use in this function)
> /GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/include/asm/irq.h:
> At
> top level:
> traps.c:130: warning: `dump_stack' defined but not used
> make[1]: *** [traps.o] Error 1
> make[1]: Leaving directory
> `/GNU-Dev/parisc-linux/src/linux-2.4.18-pa23-kdb-20020502/arch/parisc/kernel'
> make: *** [_dir_arch/parisc/kernel] Error 2
> Mon May  6 20:52:40 CEST 2002
> 
> Hmm the patch put kdb.h in include/asm-parisc but all #include refer to
> linux/kdb.h?
> 
> There should be also some problem with my .config where I select 
> CONFIG_KDB=y
> CONFIG_KDB_MODULES=y
> # CONFIG_KDB_OFF is not set
> CONFIG_KALLSYMS=y
> 
> (the rest is obtain for a common make oldconfig for PA7000 processor
> type)
> 
> Thanks in advance for additionnal help,
>     Joel
> 
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> 


-------------------------------------------------
This mail sent through Tiscali Webmail (http://webmail.tiscali.be)



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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] kdb patches for -pa23 ... moooo!
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> in fact, I find that it is missing following files in include/linux:
> kdb.h; kallsyms.h; dis-asm.h; kdbprivate.h.

Paul is doing a merge from trunk to the kdb branch. I would suggest
trying the stuff in cvs (kdb_v21 branch) instead.

randolph



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From: Paul Bame <bame@fc.hp.com>
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Subject: Re: [parisc-linux] kdb patches for -pa23 ... moooo!
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> Paul is doing a merge from trunk to the kdb branch. I would suggest
> trying the stuff in cvs (kdb_v21 branch) instead.

The branch isn't ready yet...



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> > Paul is doing a merge from trunk to the kdb branch. I would suggest
> > trying the stuff in cvs (kdb_v21 branch) instead.
> 
> The branch isn't ready yet...

I haven't confirmed that it works, but the kdb branch now includes all
the trunk changes from pa13 through pa24 courtesy of CVS, which is
not always perfect...  The result should probably be compared to Carlos'
recent work as a sanity check.

Please use the 'kdb_v21' branch for kdb-specific commits.  Committing
them to the trunk will cause an ugly mess :-)

	-P



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From: Stan Sieler <sieler@allegro.com>
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Subject: [parisc-linux] looking for 2.4 firmware for J282
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hi,

Thanks to Tim Carsons and Grant Grundler, I have have use of a J282.

However, I noticed the firmware is rather old, and wanted to upgrade it.  

I know the HP ITRC has 2.5 available (I downloaded it), but I'd prefer to get
2.4, so this machine will exactly match a couple some friends have.

I can no longer find the 2.4 firmware online ... or any earlier versions.

Does anyone know where I could get a copy, please?

thanks,

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com



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Subject: Re: [parisc-linux] RE: wishlist projects, looking for volunteers
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What are your experiences about !

We (especially I) need help for the HP-prorietary components like in the
HP E-Series servers (e.g. E55 9000/856 server).

I would be interested in running E55 under Linux with SCSI and MUX
working,
also the parallel port (to be complete....)

Do you have knowledge on this subject ... ?

With friendly regards
Christoph P.


"MOORE,CHRISTOPHER (HP-USA,ex1)" wrote:
> 
> Hi Randolph,
> 
> Thanks for posting the project wishlist.  You mentioned that these
> are specifically user space projects that need doing.  Is there a
> similar wishlist for kernel space projects?  I've got a lot more
> experience with kernel (specifically HPUX) than I have with compilers,
> linkers, and debuggers.
> 
> Chris Moore
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Stan Sieler wrote:
> Thanks to Tim Carsons and Grant Grundler, I have have use of a J282.

FTR, that's "Tim Connors".
I was just the delivery boy...  ;^)

grant



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Re:

> > Thanks to Tim Carsons and Grant Grundler, I have have use of a J282.
> 
> FTR, that's "Tim Connors".

Apologies to Tim...I even checked the spelling before I blatantly typo'd it!

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com



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"James Braid" wrote:
> 2.4.18-pa24, and
> 2.4.18-pa23 

ok - those are running mostly ok on the A500.
Still have stability problems.

Our best 2.4.18 kernel so far is the non-SMP kernel I built for -pa7.
See ftp.parisc-linux.org/kernels/a500.

> > This suggests something is wrong with that device.
> > Are all RAID0 disks internal? Or connected to external box?
> > I see further down they seem to be working fine individually.
> 
> All disks are internal disks in the hotswap cage thing, connected to the
> core I/O board (? not sure if that's what its called , it's a big board
> with 3 SCSI cables on it and the ethernet jack/external SCSI). All the
> disks are plugged into this, two disks per cable, and the DVD on its own
> cable.

This still sounds like a problem with the cable or termination.

> 00:01.0 SCSI storage controller: LSI Logic / Symbios Logic (formerly
> NCR) 53c896 (rev 05)
...
> 00:01.1 SCSI storage controller: LSI Logic / Symbios Logic (formerly
> NCR) 53c896 (rev 05)

yeah - this is the same thing.

...
> The Qlogic cards I put in as I was going to move the scsi drives onto
...

I don't expect the extra cards to cause any problems.

...
> I will try again with dbench on just one disk at a time as well.

That sounds like a good idea.

Another general warning: we haven't tested L2000 as much as other boxes.

I've taken a quick look at sym53c8xx driver and the first routine
I look at has a sequence I don't like to see:
static void ncr_chip_reset (ncb_p np)
{
	OUTB (nc_istat, SRST);
	UDELAY (10);
	OUTB (nc_istat, 0);
}

This sequence is fine when using IO port space but not OK
for MMIO space. (posted write preceding a udelay and nothing
to force the clearing of SRST down).

Can you try a kernel with SCSI_NCR_IOMAPPED=y?

grant



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> Our best 2.4.18 kernel so far is the non-SMP kernel I built for
> -pa7. See ftp.parisc-linux.org/kernels/a500.
> 

Okay, I will take a look at that, thanks.

> Can you try a kernel with SCSI_NCR_IOMAPPED=y?

Yep. The kernels I am currently running already have that option set.
I read something about SCSI not working without it, so I tried
enabling it. Didn't really seem to have any affect on the problems I
have been having.

I will try mucking with the termination and cables, but they should
be okay right? I mean, this box hasn't been opened or touched since
(hardware wise) since we got it from HP.

Thanks, James.

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Okay, I have just been thrashing my L2000, one disk at a time with
dbench (up to 100 clients, havent tried any more), one disk at a
time, and it has held up fine (i.e. no ABORTS/RESETS or anything).
Yet as soon as I run dbench concurrently over more than one disk
(whether in a RAID array or just fire up 2 dbench's on different
disks, the SCSI driver goes mental with ABORTS and RESETS in the
error log. 

The SCSI termination and cabling *should* be fine, as nobody here has
touched the box since we got it from HP. I cant be sure on the cables
though as we have no replacement cables for it.

This is really weird, anybody have further ideas about this one?

Cheers, James

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Many thanks.

I update it right now, so I will try to compile it with gcc-3.1 (the yesterday
cupdate of gcc-3.2 compiles well in during the night, so I will try it also)

Joel

Quoting Randolph Chung <tausq@debian.org>:

> > in fact, I find that it is missing following files in include/linux:
> > kdb.h; kallsyms.h; dis-asm.h; kdbprivate.h.
> 
> Paul is doing a merge from trunk to the kdb branch. I would suggest
> trying the stuff in cvs (kdb_v21 branch) instead.
> 
> randolph
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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> 
> in fact, I find that it is missing following files in include/linux:
> kdb.h; kallsyms.h; dis-asm.h; kdbprivate.h.
>

Just a curiosity, did you forget to apply the kdb common patch first? 

c.




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Joel,

The following recipe might help:

---
mkdir kdb-parisc
cd kdb-parisc
export CVSROOT=:pserver:anonymous@cvs.parisc-linux.org:/var/cvs
cvs login
cvs co linux
cvs co palo
mkdir kdb
cd kdb
wget ftp://oss.sgi.com/projects/kdb/download/v2.1/kdb-v2.1-2.4.18-common-3.bz2
bunzip2 kdb-v2.1-2.4.18-common-3.bz2
wget http://www.baldric.uwo.ca/~carlos/kdb-parisc/kdb-v2.1-2.4.18-pa23-parisc.bz2
bunzip2 kdb-v2.1-2.4.18-pa23-parisc.bz2
cd ../linux
patch -p1 < ../kdb/kdb-v2.1-2.4.18-common-3
patch -p1 < ../kdb/kdb-v2.1-2.4.18-pa23-parisc
make oldconfig (Answer CPU and KDB questions)
(You can alternatively configure other things)
make dep
make palo
---

I won't be maintaining kdb patches outside the CVS try anymore, 
so the second wget will soon become a cvs checkout.

c.



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Quoting "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>:

> Joel,
> 
> The following recipe might help:
> 
> ---
> mkdir kdb-parisc
> cd kdb-parisc
> export CVSROOT=:pserver:anonymous@cvs.parisc-linux.org:/var/cvs
> cvs login
> cvs co linux
> cvs co palo
> mkdir kdb
> cd kdb
> wget
> ftp://oss.sgi.com/projects/kdb/download/v2.1/kdb-v2.1-2.4.18-common-3.bz2
> bunzip2 kdb-v2.1-2.4.18-common-3.bz2
> wget
> http://www.baldric.uwo.ca/~carlos/kdb-parisc/kdb-v2.1-2.4.18-pa23-parisc.bz2
> bunzip2 kdb-v2.1-2.4.18-pa23-parisc.bz2
> cd ../linux
> patch -p1 < ../kdb/kdb-v2.1-2.4.18-common-3
> patch -p1 < ../kdb/kdb-v2.1-2.4.18-pa23-parisc
> make oldconfig (Answer CPU and KDB questions)
> (You can alternatively configure other things)
> make dep
> make palo
> ---
> 
> I won't be maintaining kdb patches outside the CVS try anymore, 
> so the second wget will soon become a cvs checkout.
> 
> c.
> 
> 
Many thanks for explanation.

Right now, I just update the kdb21 branch that Paul update for -pa24 stuff.

Unfortunately I do not reach to boot it (test it with gcc-3.0.4 and gcc-3.1 co
two days ago). It seems to hang just after the message:
"...
a common symtom -- search the FAQ ..."

I also check that I can boot 2.4.18-pa24: 
    gcc 3.0.4 ok
    gcc 3.1 hang just after Freeing Init mem (364k)

Well I let you work and I will update kdb branch latter and try again.

Joel


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> I won't be maintaining kdb patches outside the CVS try anymore, 
> so the second wget will soon become a cvs checkout.

the kdb common patch is in the kdb cvs branch too, fwiw.

randolph



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Subject: Re: [parisc-linux] Dodgy SCSI in L2000
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"James Braid" wrote:
> > Can you try a kernel with SCSI_NCR_IOMAPPED=y?
> 
> Yep. The kernels I am currently running already have that option set.
> I read something about SCSI not working without it, so I tried
> enabling it. Didn't really seem to have any affect on the problems I
> have been having.

The -pa7 I built has:
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_PQS_PDS is not set
# CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set

Of those, the _SYNC param is probably the one you want to twiddle.
That sets the SDTR ceiling for all scsi busses in the system.
While the 896 chip can do faster, termination, cable length, device
bugs, misalignment of jupiter and pluto, failure to sacrifice enough
710s, etc can cause the symptoms you described.

On the last two generations of parisc machines one can cripple individual
SCSI busses via PDC. Look at the SCSI cmd in the "configuration" menu at
boot up.  A few months back I added the PDC calls to sym53c8xx driver to
get SCSI initiator ID, width, and SDTR settings. This PDC support was
intended for Multi-initiator SCSI clusters. But is useful to cripple a
bus when the topology doesn't support the capabilities of the
interfaces or devices.


> I will try mucking with the termination and cables, but they should
> be okay right? I mean, this box hasn't been opened or touched since
> (hardware wise) since we got it from HP.

I normally expect the internal cables to be OK from HP.
But given the current issues, it's worth double checking.

The need for termination varies depending on drive types and bus speeds.
I'm talking practical here since SCSI spec *requires* the termination.

grant



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> > I still haven't figured out why libstdc++ needs to be installed prior
> > to running the testsuite.
> 
> That's weird... nothing immediately comes to mind.

LD_RUN_PATH in the environment is the culprit.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: [parisc-linux] Re: Dodgy SCSI in L2000
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"James Braid" wrote:
...
> Kernel Fault: Code=15 regs=000000004eb88000 (Addr=000000005eb80018)

> IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010108fe0
> 0000000010108fe4

The fault was caused at 0x0000000010108fe0 - I need to see the
matching vmlinux and System.map to determine where this is in
the code.

>  IIR: 487a0030    ISR: 0000000000000000  IOR: 000000005eb80018
>  CPU:        0   CR30: 000000004eb48000 CR31: 0000000010460000
>  ORIG_R28: 000000001012c9fc
> 
> I then hard rebooted (rs command from the gsp), ran dbench 10 on sdc,
> and the box just completely froze after about half a line of dots from
> dbench.

When the box freezes, do "tc" from GSP. On reboot, at PDC prompt type
"ser pim" to get the state of the machine when it was TC'd.
Once you've saved the PIM dump, it's good to clear PIM.
(iirc, "ser clearpim")
Again, save matching Sysytem.map and vmlinux.

> So I was thinking that sdc may be a dodgy disk/controller, so
> then I rebooted again, ran dbench 10 on sdd, and it worked fine. Tried
> sdb, that was fine too. Okay, so theres something weird happening here,
> I tried dbench 10 on sdc now, and it ran fine. Ran dbench 10 a few more
> times on sdc and it ran fine every time. Also ran dbench 10 over all
> disks serially 4 times and no errors.

Well, that's interesting.

> I rebooted it cleanly (finally!) and went into the boot menu thing, and
> into the service menu, and had a look through the options. I saw the
> scsi paths were set to fast for the boot disk and ultra for the other 3
> disks.

IIRC, setting _SYNC parameter to 10 is equivalent to "fast".

> I set all the scsi paths to "fast" instead of ultra, booted up
> and ran dbench 10 on sdb and sdc simultaneously...it went okay for a
> while, and then, another kernel panic:
> 
> Dumping Stack from 0x0000000056f10000 to 0x0000000056f11380:
> WARNING! Stack pointer and cr30 do not correspond!

oic. In cases like this, we have to disable Stack Dumping since
it data page faults. I suspect that's what's happened in the
previous dumps too. You can disable stack dumps by changing "#if 1"
to "#if 0" on line 149 (show_stack()) in arch/parisc/kernel/traps.c.

BTW, typically this msg means a kernel driver is attempting to directly
access user space data instead of copying the data into kernel space.

...
> Hard rebooted it (*again*), ran dbench 10 on 1 disk (sdd), it ran fine,
> so I cranked it up to dbench 100. That crashed nicely with this panic:
> 
> Dumping Stack from 0x0000000056390000 to 0x0000000056390000:
> 
> Kernel Fault: Code=15 regs=0000000046390000 (Addr=0000000056388018)

did you get the "Stack pointer and cr30 do not correspond!" msg before this?
Well, I guess it doesn't matter...keep an eye out for it though.

> I have no idea whats going on here now :(

Me either since I've not seen this problem. This does sound like
the SCSI interface driver is hitting a corner case and dying there.
But that's just a SWAG.

I'll have to get dbench and try it on the a500 when that's available.

> Is there anything I need to do to decode these kernel panics or anything
> (I'm not a kernel hacker at all, so I don't really know much about the
> panics). I did notice that the ORIG_R28 part is identical on the panics
> though - no idea what this means.

GR02 and IAOQ are my starting points.
get "a.c" from http://cvs.parisc-linux.org/build-tools/
and use that to lookup symbols in System.map.

> I am running ext3 on all my disks - could this be causing any problems?

I doubt it. I'm running ext3 on all my machines.

> I did however notice that the problems still occurred running ext2
> before I re-made the filesystems.

yeah - i don't think this is related to anything in the file system.

...
> As for the good news, I tried a SMP kernel, and SMP works :)
> It sees both CPUs and uses them (I think, top doesn't show cpu usages,
> as per the bug in the bug tracking system).

SMP boots - but it's still less stable the UP. Maybe because of the same
problem you are running into here.

grant



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Hey Paul, How you Doing ?
Fine , hope. 
My name is Henrique Leandro
Maybe you know how do i for use Linux im our K220.
I burn a CD with Debian Image and does work ! 
Im very sad.


Best regards.






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From: "James Braid" <james.braid@peace.com>
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Subject: RE: [parisc-linux] Re: Dodgy SCSI in L2000
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

> The fault was caused at 0x0000000010108fe0 - I need to see the
> matching vmlinux and System.map to determine where this is in
> the code.
> 

Ah, mind if send you the vmlinux and System.map off-list?


> When the box freezes, do "tc" from GSP. On reboot, at PDC prompt
> type "ser pim" to get the state of the machine when it was TC'd.
> Once you've saved the PIM dump, it's good to clear PIM.
> (iirc, "ser clearpim")
> Again, save matching Sysytem.map and vmlinux.
> 

> IIRC, setting _SYNC parameter to 10 is equivalent to "fast".

Okay, I will try that and put a new kernel in.
 
> oic. In cases like this, we have to disable Stack Dumping since
> it data page faults. I suspect that's what's happened in the
> previous dumps too. You can disable stack dumps by changing "#if 1"
> to "#if 0" on line 149 (show_stack()) in
> arch/parisc/kernel/traps.c.  

I will disable that as well and put a new kernel in.

> BTW, typically this msg means a kernel driver is attempting 
> to directly
> access user space data instead of copying the data into kernel
> space.  

That sounds nasty...

> > so I cranked it up to dbench 100. That crashed nicely with 
> this panic:
> > 
> > Dumping Stack from 0x0000000056390000 to 0x0000000056390000:
> > 
> > Kernel Fault: Code=15 regs=0000000046390000
> > (Addr=0000000056388018) 
> 
> did you get the "Stack pointer and cr30 do not correspond!" 
> msg before this?

Yep, I did get the "Stack pointer..." stuff before this, I left it
off the email though.

> Me either since I've not seen this problem. This does sound like
> the SCSI interface driver is hitting a corner case and dying there.
> But that's just a SWAG.
> 
> I'll have to get dbench and try it on the a500 when that's
> available.  

Cool.

Thanks, James.

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From: Alexander Gabert <pappy@nikita.ath.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] broken A1094-66541 PCBA Switch on 735/125
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hi fellows,

tonight i ran into a major problem: one of my two hp workstations is
having problems with the power on switch:

the button must be pushed and tricked more than 5 times to turn the
machine on (led's blink only for a second when you push the button
once).  i did not mind and just did not turn the machine off :-)

but now, i have the problem that the machine runs for 5-6 minutes and
then suddenly powers off itself.

i really suppose it to be a problem with the A1094-66541 PCBA Switch
that is the little power switch assembly behind the drive cage that is
connected to the leds with the small ribbon cable and connected to the chas=
sis backplane with a long cable.

does someone of you (preferably in germany, or the best would be
munich) know somebody, who i may ask to get me such a part?


i am quite sure, that this PCB is generating the problems with powering
on the machine and recently that it powers itself off.
some months ago i took the power switch PCB from my second machine and
put it into this one and the PCB worked, but i need it for the other
machine of course, which happens to be the web/mail server from which i
am currently writing and receiving my mails.

thank you in advance for any help to get this machine up and running
again...

alex

--=20
pub  1024/05E1A80C 2001/12/16 Alexander Gabert (http://nikita.ath.cx) <papp=
y@nikita.ath.cx>
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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Re: Dodgy SCSI in L2000
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"James Braid" wrote:
> Ah, mind if send you the vmlinux and System.map off-list?

Yes - I do mind. For now, don't bother. I don't have time.
And the next round of debug info will be more interesting.

In general, please put them on a publicly accessible http
or ftp server and I'll pull them when I have time. Or someone
else can if I don't. If that's not possible, contact me off-list
and I'll setup an account for you to push them to.

grant



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From: Paul Bame <bame@riverrock.org>
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Subject: [parisc-linux] [PATCH] arch/parisc use standard AS rule (fwd)
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Guess this guy doesn't know about parisc-linux.org
	-P

------- Forwarded Message

Date: Sun, 12 May 2002 18:42:35 -0500 (CDT)
From: Kai Germaschewski <kai-germaschewski@uiowa.edu>
X-X-Sender: kai@chaos.physics.uiowa.edu
To: Linus Torvalds <torvalds@transmeta.com>
cc: bame@debian.org
Subject: [PATCH] arch/parisc use standard AS rule


Linus,

the parisc architecture seems to be unmaintained, on of the Makefiles uses
still pre-2.4 syntax, which means that parisc won't build, and did not for 
a long time. Anyway:

The appended patch updates arch/parisc to use the Rules.make provided
assembler rules.

- --Kai

diff -Nru a/arch/parisc/lib/Makefile b/arch/parisc/lib/Makefile
- --- a/arch/parisc/lib/Makefile	Sun May 12 18:27:18 2002
+++ b/arch/parisc/lib/Makefile	Sun May 12 18:27:18 2002
@@ -2,12 +2,12 @@
 # Makefile for parisc-specific library files..
 #
 
+USE_STANDARD_AS_RULE := true
 
 L_TARGET = lib.a
- -L_OBJS	= lusercopy.o bitops.o checksum.o
 
+obj-y := lusercopy.o bitops.o checksum.o
 
- -.S.o:
- -	$(CC) -D__ASSEMBLY__ $(AFLAGS) -traditional -c $< -o $*.o
+EXTRA_AFLAGS := -traditional
 
 include $(TOPDIR)/Rules.make
diff -Nru a/arch/parisc/tools/Makefile b/arch/parisc/tools/Makefile
- --- a/arch/parisc/tools/Makefile	Sun May 12 18:27:18 2002
+++ b/arch/parisc/tools/Makefile	Sun May 12 18:27:18 2002
@@ -7,11 +7,6 @@
 #
 TARGET	:= $(TOPDIR)/include/asm-$(ARCH)/offset.h
 
- -.S.s:
- -	$(CPP) $(CFLAGS) $< -o $*.s
- -.S.o:
- -	$(CC) $(CFLAGS) -c $< -o $*.o
- -
 all: $(TARGET)
 
 $(TARGET): offset.h

------- End of Forwarded Message




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> the parisc architecture seems to be unmaintained, [...]
> The appended patch updates arch/parisc to use the Rules.make provided
> assembler rules.

Kai, thanks for your effort to make this patch.  You have noticed
that parisc hasn't sent new bits to kernel.org in a long time, however
the port is actively maintained at http://parisc-linux.org

	-Paul Bame



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Hi all,

To split my gcc-3.2 and gcc-3.1 env on two different server (need disk space
also), I would like to install a free b2000 workstation.

To do this i choose lan install (no possibilty for external scsi-cdrom and no
more place to rebuild a new cdimage with recent kernel); I configure my palinux
b180 as bootp-tftp server and configure in accordance with
http://pateam.esiee.fr/parisc-linux-boot/parisc-linux-boot/preparation.html.

In b2000 BOOT_ADMIN> boot lan, the lifimage (build with cvs palo & kernel
2.4.18-24 which boot well on my b180) is well found and launched but hang just
after "Searching for devices..." and the green light on the ide cd-rom driver
stay lighted?

Thanks in advance for help,
    Joel


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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] Try to boot b2000 failled?
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Xref: news.gmane.org gmane.linux.ports.parisc:14760

Oops... I find back a kernel pa12 and this boot better until it panics because of:
...
root fs not found
...

So I suspect a mistake in the bootp-tftp config.
In fact I would like to mount my palinux-0.9-3 cd on b180:/cdrom and use it as
root fs to install the b2000.
Unfortunately i do not find any example to do this. Is somebody can share its
experience.

Thanks in advance for additionale help,
    Joel

Quoting joel.soete@freebel.net:

> Hi all,
> 
> To split my gcc-3.2 and gcc-3.1 env on two different server (need disk
> space
> also), I would like to install a free b2000 workstation.
> 
> To do this i choose lan install (no possibilty for external scsi-cdrom
> and no
> more place to rebuild a new cdimage with recent kernel); I configure my
> palinux
> b180 as bootp-tftp server and configure in accordance with
> http://pateam.esiee.fr/parisc-linux-boot/parisc-linux-boot/preparation.html.
> 
> In b2000 BOOT_ADMIN> boot lan, the lifimage (build with cvs palo &
> kernel
> 2.4.18-24 which boot well on my b180) is well found and launched but
> hang just
> after "Searching for devices..." and the green light on the ide cd-rom
> driver
> stay lighted?
> 
> Thanks in advance for help,
>     Joel
> 
> 
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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From: joel.soete@freebel.net
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Subject: [parisc-linux] Re: tftp boot
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To: James S <smithjames@comcast.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:14761

Hey James,

Quoting James S <smithjames@comcast.net>:

> heres how i did it - hope this helps:-
> 
> make sure you have tftpd & bootpd installed properly
> 

Should be Ok (apt-get install bootp tftp) (Yesterday)

> make sure youre isolated from any dhcp servers there may be on your
> network

Afaik there is no other bootp server on this segment

> 
> get the mac address of the machine you want to netboot & replace the
> FFFFFFFFFF's with the address in the following
> 
> on the 712/60 the command to get the mac address was 'lana' - it may be
> different for yours

on b2000 it is in to step first info then la (Ok)

> 
> replace the ip address with the address you want the new machine to
> netboot
> with & replace the hp-ux between the brackets with the machine name
> 
> create a directory /tftpboot on your boot server & copy the relevant
> lifimage file for your machine into it - you can get this from the
> debian
> ftp site

There should be also the problem: on ftp.parisc-linux.org i do not find a
relevent lifimage (too old for a b2000) so I build it from last palo cvs sources
with default parameters for an NFSROOT = 172.16.248.169 (my bootp-tftp server)
and CMDLINE = 0/vmlinux HOME=/ TERM=linux root=/dev/nfs nfsroot=172.16.248.169
ip=bootp

But I do not find /dev/nfs  (and no way to build with MAKEDEV) on the bootp-tftp
server?

> 
> create a /usr/src/parisc directory on your boot server too

What should I have to put in this dir?

> 
> the file /etc/bootptab on your bootserver should contain
> 
> [hp-ux]
> :hd=/tftpboot:\
> :rp=/usr/src/parisc/:\
> :ht=ethernet:\
> :ha=FFFFFFFFFFFF:\
> :ip=192.168.193.83:\
> :bf=lifimage:\
> :sm=255.255.255.0:\
> :to=7200:
> 
> 
> dunno what the boot command is on your machine, but on the 712/60 from
> the
> boot console i use 'boot lan'
> 

same for b2000 afaik

> your machine should now netboot
> 

It seems start to netboot well but the failed when try to mount its nfs root fs.
Here is the full messages:

Firmware Version 4.9

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache 
  ---------  --------   ---------------------  -----------------  -------------
      0      400 MHz    Active                 Functional         512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:              268435456 bytes
  Good memory required:           23027712 bytes

  Primary boot path:    SCSI.6.0
  Alternate boot path:  SCSI.5.0
  Console path:         GRAPHICS(0)
  Keyboard path:        USB

Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


----- Main Menu -------------------------------------------------------------

      Command                           Description
      -------                           -----------
      BOot [PRI|ALT|<path>]             Boot from specified path
      PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path
      SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices

      COnfiguration [<command>]         Access Configuration menu/commands
      INformation [<command>]           Access Information menu/commands
      SERvice [<command>]               Access Service menu/commands

      DIsplay                           Redisplay the current menu
      HElp [<menu>|<command>]           Display help for menu or command
      RESET                             Restart the system
-----
Main Menu: Enter command >   bo lan 
Interact with IPL (Y, N, Q)?> y   n

Booting... 
Network Station Address 0030d3-015a3b

System IP Address 172.16.248.45
Server IP Address 172.16.248.169

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl 1.0 root@palinux Wed Apr 17 10:24:11 CEST 2002

Boot image contains:
    0/vmlinux32 4062608 bytes @ 0x8000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'HOME=/ TERM=linux root=/dev/nfs nfsroot=172.16.248.169
ip=bootp   console=ttyS0 palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... 
This box can boot either 32 or 64-bit kernels...Only see a 32-bit kernel, using
thatELF32 executable
Entry 001001d8 first 00100000 n 4
Segment 0 load 00100000 size 2322068 mediaptr 0x1000
Segment 1 load 00338000 size 712704 mediaptr 0x238000
Segment 2 load 003e8000 size 32768 mediaptr 0x2e6000
Segment 3 load 004153a8 size 111408 mediaptr 0x2ee3a8
Branching to kernel entry point 0x001001d8.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.18-pa12-lvm-1.0.3-evms-1.0.0-jfs-1.0.17 (root@palinux) (gcc
version 3.0.4) #13 Tue May 14 15:42:21 CEST 2002
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005d00 00000481 00000000 00000002 77e93910 100000f0 00000008 000000b2
000000b2
vers  00000301
CPUID vers 17 rev 11 (0x0000022b)
model 9000/785/B2000
Total Memory: 256 Mb
pagetable_init
On node 0 totalpages: 65536
zone(0): 65536 pages.
zone(1): 0 pages.
zone(2): 0 pages.
LCD display at f05d0008,f05d0000 registered
Kernel command line: HOME=/ TERM=linux root=/dev/nfs nfsroot=172.16.248.169
ip=bootp   console=ttyS0 palo_kernel=0/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 799.53 BogoMIPS
Memory: 254656k available
Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
Searching for devices...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000 [10], versions 0x582, 0x0, 0xb
2. Elroy PCI Bridge (13) at 0xfed30000 [10/0], versions 0x782, 0x0, 0xa
3. Elroy PCI Bridge (13) at 0xfed32000 [10/1], versions 0x782, 0x0, 0xa
4. Kazoo W+ (0) at 0xfffa0000 [32], versions 0x5d0, 0x0, 0x4
5. Memory (1) at 0xfed10200 [49], versions 0x9d, 0x0, 0x9
CPU(s): 1 x PA8600 (PCX-W+) at 400.000000 MHz
SBA found Astro 2.1 at 0xfed00000
lba version TR4.0 (0x5) found at 0xfed30000
lba version TR4.0 (0x5) found at 0xfed32000
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Enabled soft power switch (polling mode, io=0xf0400804).
SuperIO: Found NS87560 Legacy I/O device at 00:0e.1 (IRQ 64) 
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
parport0: PC-style at 0x378, irq 101 [PCSPP(,...)]
Starting kswapd
Journalled Block Device driver loaded
JFS development version: $Name: v1_0_17 $
PCI graphic ROM found at f4940000 (128 kB), fb @ fb000000 (16 MB)
STI word mode ROM at f4940044, hpa=fb000000
STI word mode ROM, id 35acda16-9a02587, conforms to spec rev. 8.0c
STI device: HPA4982A
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI
enabled
ttyS00 at port 0x03f8 (irq = 99) is a 16550A
ttyS01 at port 0x02f8 (irq = 100) is a 16550A
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
NS87415: IDE controller on PCI bus 00 dev 70
NS87415: chipset revision 3
NS87415: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0x0900-0x0907, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0x0908-0x090f, BIOS settings: hdc:pio, hdd:pio
hda: LTN485S, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 103
hda: ATAPI 48X CD-ROM drive, 120kB Cache
Uniform CD-ROM driver Revision: 3.12
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 65 at 0xf00, 00:30:D3:01:5A:3B, IRQ 66.
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip1: ***WARNING***: No MII transceiver found!
eth1: Digital DS21143 Tulip rev 65 at 0x12100, 00:30:6E:06:23:D0, IRQ 130.
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 1, device 3, function 0
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 15, function 0
sym53c8xx: 53c895a detected 
sym53c875-0: rev 0x26 on pci bus 1 device 3 function 0 irq 131
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c895a-1: rev 0x1 on pci bus 0 device 15 function 0 irq 65
sym53c895a-1: ID 7, Fast-40, Parity Checking
sym53c895a-1: handling phase mismatch from SCRIPTS.
scsi0 : sym53c8xx-1.7.3c-20010512
scsi1 : sym53c8xx-1.7.3c-20010512
  Vendor: QUANTUM   Model: ATLAS5-9LVD       Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: QUANTUM   Model: ATLAS5-9LVD       Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 03
Attached scsi disk sda at scsi1, channel 0, id 5, lun 0
Attached scsi disk sdb at scsi1, channel 0, id 6, lun 0
sym53c895a-1-<5,*>: FAST-40 WIDE SCSI 80.0 MB/s (25.0 ns, offset 31)
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
Partition check:
 sda: unknown partition table
sym53c895a-1-<6,*>: FAST-40 WIDE SCSI 80.0 MB/s (25.0 ns, offset 31)
SCSI device sdb: 17773524 512-byte hdwr sectors (9100 MB)
 sdb: unknown partition table
sticonsole_init: searching for STI ROMs
Console: switching to colour STI console 160x64
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
LVM version 1.0.3(19/02/2002)
evms: md raid5: measuring checksumming speed
evms: md raid5:    8regs     :   964.400 MB/sec
evms: md raid5:    8regs_prefetch:   964.400 MB/sec
evms: md raid5:    32regs    :   684.800 MB/sec
evms: md raid5:    32regs_prefetch:   684.800 MB/sec
evms: md raid5: using function: 8regs_prefetch (964.400 MB/sec)
evms: EVMS v1.0.0 initializing .... info level(5).
evms: Exporting EVMS Volume(63,1) from "/dev/evms/sda".
evms: Exporting EVMS Volume(63,2) from "/dev/evms/sdb".
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 16384 bind 32768)
IP-Config: Incomplete network configuration information.
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 172.16.248.169
RPC: sendmsg returned error 229
portmap: RPC call returned error 229
Root-NFS: Unable to get nfsd port number from server, using default
Looking up port of RPC 100005/1 on 172.16.248.169
RPC: sendmsg returned error 229
portmap: RPC call returned error 229
Root-NFS: Unable to get mountd port number from server, using default
RPC: sendmsg returned error 229
mount: RPC call returned error 229
Root-NFS: Server returned error -229 while mounting /tftpboot/(none)
VFS: Unable to mount root fs via NFS, trying floppy.
request_module[block-major-2]: Root fs not mounted
VFS: Cannot open root device "nfs" or 02:00
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on 02:00
 

any more idea?

thanks a lot for attention,
    Joel


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Bonjour !  ;o)

I'm glad to announce that the new hwdb is online at 
http://hwdb.parisc-linux.org/

I hope you'll like it, and I pray it will work fine.

Please mail for any comment/problem to report.

Enjoy ;o)


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




From - Thu Nov 08 21:22:40 2018
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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] New HWDB design online
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Hello !

Are you now responsible for the HWDB ?

I wrote moths ago some times to the "webmaster" to delete my
registratioon with the old email address !

Please delete for 
	720
	E55
the entry "christoph.plattner@dot.at". It is already duplicated with
my "gmx.at" mail account ! "dot.at" is not valid now !

With friendly regards
Christoph P.



Thibaut VARENE wrote:
> 
> Bonjour !  ;o)
> 
> I'm glad to announce that the new hwdb is online at
> http://hwdb.parisc-linux.org/
> 
> I hope you'll like it, and I pray it will work fine.
> 
> Please mail for any comment/problem to report.
> 
> Enjoy ;o)
> 
> Thibaut VARENE
> PA/Linux ESIEE Team
> http://pateam.esiee.fr/
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Christoph Plattner wrote:
> Hello !
> 
> Are you now responsible for the HWDB ?

Christoph,
No. Mostly, thibaut just updated the header/footer/navigation bar
so it matches the rest of the site. Of course, if someone
*wants* to maintain hwdb, they should let me know...

> I wrote moths ago some times to the "webmaster" to delete my
> registratioon with the old email address !
> 
> Please delete for 
> 	720
> 	E55
> the entry "christoph.plattner@dot.at". It is already duplicated with
> my "gmx.at" mail account ! "dot.at" is not valid now !

If that doesn't get updated by this weekend, send me a friendly reminder
and I'll see if I can figure out how to do that on the weekend.

grant



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> No. Mostly, thibaut just updated the header/footer/navigation bar
> so it matches the rest of the site. Of course, if someone
> *wants* to maintain hwdb, they should let me know...

I've been doing edits on and off...

> > Please delete for 
> > 	720
> > 	E55
> > the entry "christoph.plattner@dot.at". It is already duplicated with
> > my "gmx.at" mail account ! "dot.at" is not valid now !
> 
> If that doesn't get updated by this weekend, send me a friendly reminder
> and I'll see if I can figure out how to do that on the weekend.

it's fixed now.

randolph



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At 07:10 PM 14/05/2002 +0200, joel.soete@freebel.net wrote:
>Hey James,
>
>CUT--


>Linux version 2.4.18-pa12-lvm-1.0.3-evms-1.0.0-jfs-1.0.17 (root@palinux) (gcc
>version 3.0.4) #13 Tue May 14 15:42:21 CEST 2002
CUT--

NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
>Looking up port of RPC 100003/2 on 172.16.248.169
                                                         ^^^^^^^^^^^^^^^^^
Are you running nfsd on this machine and have you exported
the root file system on it.

Cheers
Rick




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HP folks in Cupertino: LinuxCOE is now locally available!
I've set up a full Debian mirror and parts of RH.
Tell me if something you need from LinuxCOE is missing.
I still have some 20GB available.

Debian folks can point sources.list to 

	http://debian.cup.hp.com/LinuxCOE/Debian
	ftp://debian.cup.hp.com/LinuxCOE/Debian

or debian.cup.hp.com/debian instead.

Technical details:
	B180 running 2.4.18-pa22
	8 x 9GB in one raid0 for one ext3 filesystem.

enjoy,
grant



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Xref: news.gmane.org gmane.linux.ports.parisc:14768

Quoting Richard Muratti <rick@ccoz.com>:

> At 07:10 PM 14/05/2002 +0200, joel.soete@freebel.net wrote:
> >Hey James,
> >
> >CUT--
> 
> 
> >Linux version 2.4.18-pa12-lvm-1.0.3-evms-1.0.0-jfs-1.0.17
> (root@palinux) (gcc
> >version 3.0.4) #13 Tue May 14 15:42:21 CEST 2002
> CUT--
> 
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> >Looking up port of RPC 100003/2 on 172.16.248.169
>                                                         
> ^^^^^^^^^^^^^^^^^
> Are you running nfsd on this machine and have you exported
> the root file system on it.
> 
> Cheers
> Rick
> 
> 

Interesting, in fact before no but now yes:
palinux:/etc# ps -ef | grep -e rpc -e nfs
root      9564     1  0 08:26 ?        00:00:00 /sbin/rpc.statd
root      9627     1  0 08:37 ?        00:00:00 [nfsd]
root      9628     1  0 08:37 ?        00:00:00 [nfsd]
root      9629     1  0 08:37 ?        00:00:00 [nfsd]
root      9630     1  0 08:37 ?        00:00:00 [nfsd]
root      9631     1  0 08:37 ?        00:00:00 [nfsd]
root      9632     1  0 08:37 ?        00:00:00 [nfsd]
root      9633     1  0 08:37 ?        00:00:00 [nfsd]
root      9634     1  0 08:37 ?        00:00:00 [nfsd]
root      9637  9635  0 08:37 ?        00:00:00 [rpciod]
root      9639     1  0 08:37 ?        00:00:00 /usr/sbin/rpc.mountd
root      9650   258  0 08:41 pts/0    00:00:00 grep -e rpc -e nfs
palinux:/etc# exportfs
/               <world>
palinux:/etc# more /etc/exports
# /etc/exports: the access control list for filesystems which may be exported
#               to NFS clients.  See exports(5).
/ *(rw,no_root_squash)

(just for test)

And on HPUX ws:

[wsjso] root /PALINUX # bdf
Filesystem          kbytes    used   avail %used Mounted on
...
palinux:/          1730552 1483088  159552   90% /PALINUX/NFS_TEST

[wsjso] root /PALINUX # ls /PALINUX/NFS_TEST
.bash_history  GNU-Dev        boot           dev            home          
lost+found     root           tmp            vmlinux
.memdump       Sources        cdrom          etc            initrd         mnt 
          sbin           usr
Develop        bin            cdrom0         floppy         lib            proc
          tftpboot       var
Ok.

Never the less it does not help the boot stil failed the same way.

Thanks a lot for advice,
    Joel


-------------------------------------------------
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From: Richard Muratti <rmurat@attglobal.net>
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Subject: Re: [parisc-linux] Re: tftp boot
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Xref: news.gmane.org gmane.linux.ports.parisc:14769

Joel,

hear's my setup

/etc/inetd.conf
tftp    dgram   udp     wait    root    /usr/sbin/tcpd  in.tftpd
bootps  dgram   udp     wait    root    /usr/sbin/tcpd  bootpd -d 4

/etc/bootptab
c3000:hd=/tftpboot:bf=lifimage:ht=ether:ha=xxxxxxxx7368:sm=255.255.255.0:hn:ip=xxx.xx.xx.10:vm=rfc1048
alpha:hd=/tftpboot:bf=tftpboot.img:ht=ether:ha=xxxxxxxx33f6:sm=255.255.255.0:hn:ip=xxx.xx.xx.9:vm=rfc1048

/etc/exports
/tftpboot/c3000 c3000(rw,no_root_squash)

/etc/hosts
xxx.xx.xx.10    c3000   c3000

You must add you host to the hosts file for nfs export to work

ls tftpboot
System.map-20010115            lifimage 
nfsroot-20001009.tar.gz  vmlinux-20010201
System.map-32-serial-20010418  lifimage-20010115            tftpboot.img 
          vmlinux-32-serial-20010418
c3000                          lifimage_32_serial_20010418  vmlinux-20010115

ls /tftpboot/c3000
bin  boot  cdrom  dev  etc  floppy  home  initrd  lib  mnt  proc  root 
sbin  tmp  usr  var

I used one of the latest tar balls of the parisc-linux site ie I untarred 
nfsroot-20001009.tar.gz
into the c3000 dir.


ON the C3000
boot lan
Interact with IPL
Y

make sure the following is setup
root=/dev/nfs nfsroot=IP_ADDRESS_OF_NFS_SERVER:/tftpboot/c3000

I'm using the above to netboot a C3000 from an i386


Hope this helps.

Cheers
Rick



At 09:08 AM 15/05/2002 +0200, joel.soete@freebel.net wrote:
>Quoting Richard Muratti <rick@ccoz.com>:
>
> > At 07:10 PM 14/05/2002 +0200, joel.soete@freebel.net wrote:
> > >Hey James,
> > >
> > >CUT--
> >
> >
> > >Linux version 2.4.18-pa12-lvm-1.0.3-evms-1.0.0-jfs-1.0.17
> > (root@palinux) (gcc
> > >version 3.0.4) #13 Tue May 14 15:42:21 CEST 2002
> > CUT--
> >
> > NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> > >Looking up port of RPC 100003/2 on 172.16.248.169
> >
> > ^^^^^^^^^^^^^^^^^
> > Are you running nfsd on this machine and have you exported
> > the root file system on it.
> >
> > Cheers
> > Rick
> >
> >
>
>Interesting, in fact before no but now yes:
>palinux:/etc# ps -ef | grep -e rpc -e nfs
>root      9564     1  0 08:26 ?        00:00:00 /sbin/rpc.statd
>root      9627     1  0 08:37 ?        00:00:00 [nfsd]
>root      9628     1  0 08:37 ?        00:00:00 [nfsd]
>root      9629     1  0 08:37 ?        00:00:00 [nfsd]
>root      9630     1  0 08:37 ?        00:00:00 [nfsd]
>root      9631     1  0 08:37 ?        00:00:00 [nfsd]
>root      9632     1  0 08:37 ?        00:00:00 [nfsd]
>root      9633     1  0 08:37 ?        00:00:00 [nfsd]
>root      9634     1  0 08:37 ?        00:00:00 [nfsd]
>root      9637  9635  0 08:37 ?        00:00:00 [rpciod]
>root      9639     1  0 08:37 ?        00:00:00 /usr/sbin/rpc.mountd
>root      9650   258  0 08:41 pts/0    00:00:00 grep -e rpc -e nfs
>palinux:/etc# exportfs
>/               <world>
>palinux:/etc# more /etc/exports
># /etc/exports: the access control list for filesystems which may be exported
>#               to NFS clients.  See exports(5).
>/ *(rw,no_root_squash)
>
>(just for test)
>
>And on HPUX ws:
>
>[wsjso] root /PALINUX # bdf
>Filesystem          kbytes    used   avail %used Mounted on
>...
>palinux:/          1730552 1483088  159552   90% /PALINUX/NFS_TEST
>
>[wsjso] root /PALINUX # ls /PALINUX/NFS_TEST
>.bash_history  GNU-Dev        boot           dev            home
>lost+found     root           tmp            vmlinux
>.memdump       Sources        cdrom          etc            initrd 
>mnt
>           sbin           usr
>Develop        bin            cdrom0         floppy         lib 
>proc
>           tftpboot       var
>Ok.
>
>Never the less it does not help the boot stil failed the same way.
>
>Thanks a lot for advice,
>     Joel
>
>
>-------------------------------------------------
>This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] irq.c patch to fix lockups on recent kernels
Date: Wed, 15 May 2002 06:47:03 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:14770

We have been seeing fairly frequent lockups while doing heavy I/O on 
recent kernels. Paul Bame isolated this to the 2.4.18-pa16->pa17 patch
to irq.c that was put in place to fix a xtime_lock deadlock.

Here is a patch that partially reverts that patch but still fixes the
xtime_lock problem, as well as avoiding the I/O hangs. After talking to
Grant about this, I'm not convinced this is the right fix. It seems like
do_cpu_irq_mask is already called with eiem masked, so I'm not sure why
masking it again might make a difference.... we might just be masking 
(no pun intended) another bug....

I've run a kernel with this patch on a SMP a500 overnight while doing
lots of I/O ... seems to be ok. The previous -pa2[1234] kernels will 
lock up in <10 minutes...

Can someone more familiar with this part of the kernel please take a
look?

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/irq.c,v
retrieving revision 1.53
diff -u -p -r1.53 irq.c
--- irq.c       2002/04/13 22:12:27     1.53
+++ irq.c       2002/05/15 13:35:06
@@ -382,6 +382,7 @@ void do_irq(struct irqaction *action, in
 void do_cpu_irq_mask(unsigned long mask, struct irq_region *region, struct pt_regs *regs)
 {
        unsigned long bit;
+       unsigned long orig_eiem;
        int irq;

 #ifdef DEBUG_IRQ
@@ -401,6 +402,9 @@ void do_cpu_irq_mask(unsigned long mask,
         * Keeping PSW_I disabled avoids this.
         */

+       orig_eiem = get_eiem();
+       set_eiem(orig_eiem & ~mask);
+
        for (bit = (1L<<MAX_CPU_IRQ), irq = 0; mask && bit; bit>>=1, irq++) {
                int irq_num;
                if (!(bit&mask))
@@ -410,9 +414,10 @@ void do_cpu_irq_mask(unsigned long mask,
                irq_num = region->data.irqbase + irq;
                do_irq(&region->action[irq], irq_num, regs);
        }
+       set_eiem(orig_eiem);

        /* Leave with PSW_I bit set */
-       local_irq_enable();
+       local_irq_enable();
 }



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Subject: Re: [parisc-linux] New HWDB design online
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Thanks !!

Randolph Chung wrote:
> 
> > No. Mostly, thibaut just updated the header/footer/navigation bar
> > so it matches the rest of the site. Of course, if someone
> > *wants* to maintain hwdb, they should let me know...
> 
> I've been doing edits on and off...
> 
> > > Please delete for
> > >     720
> > >     E55
> > > the entry "christoph.plattner@dot.at". It is already duplicated with
> > > my "gmx.at" mail account ! "dot.at" is not valid now !
> >
> > If that doesn't get updated by this weekend, send me a friendly reminder
> > and I'll see if I can figure out how to do that on the weekend.
> 
> it's fixed now.
> 
> randolph

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Xref: news.gmane.org gmane.linux.ports.parisc:14772

Joel -

Here is what I've been doing to install debian on my C3600 and J5000.  No 
need for network or anything:

1.  Copy the file LIFIMAGE in the disks-hppa directory to a CD-ROM
2.  Boot a HP-UX 10 or 11 cd
3.  Go to the installer, and go to a recovery console.
4.  Load 'dd' and 'mount'.  This will get dd and all the mount files.
5.  Go to a shell.
6.  Mount /dev/dsk/c0t0d0 to /mnt with mount -t cdfs 
7.  Go to /mnt, then do a 'dd if='LIFIMAGE;1' of=/dev/dsk/cXtYdZ bs=2048'  
    where x, y, and z are your target scsi hard disk.  
8.  Reboot the machine, and boot the scsi hard disk you just targeted.
9.  Interact with the IPL, and your done.

The great thing is, everything gets loaded into RAM.  So, when you start
the install, just partition both drives like normal, and install.  Just 
make sure you do everything right the first time, or you'll have to repeat
the process.

-Seth

-----Original Message-----
From: joel.soete@freebel.net [mailto:joel.soete@freebel.net]
Sent: Tuesday, May 14, 2002 9:03 AM
To: joel.soete@freebel.net
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Try to boot b2000 failled?


Oops... I find back a kernel pa12 and this boot better until it panics
because of:
...
root fs not found
...

So I suspect a mistake in the bootp-tftp config.
In fact I would like to mount my palinux-0.9-3 cd on b180:/cdrom and use it
as
root fs to install the b2000.
Unfortunately i do not find any example to do this. Is somebody can share
its
experience.

Thanks in advance for additionale help,
    Joel

Quoting joel.soete@freebel.net:

> Hi all,
> 
> To split my gcc-3.2 and gcc-3.1 env on two different server (need disk
> space
> also), I would like to install a free b2000 workstation.
> 
> To do this i choose lan install (no possibilty for external scsi-cdrom
> and no
> more place to rebuild a new cdimage with recent kernel); I configure my
> palinux
> b180 as bootp-tftp server and configure in accordance with
>
http://pateam.esiee.fr/parisc-linux-boot/parisc-linux-boot/preparation.html.
> 
> In b2000 BOOT_ADMIN> boot lan, the lifimage (build with cvs palo &
> kernel
> 2.4.18-24 which boot well on my b180) is well found and launched but
> hang just
> after "Searching for devices..." and the green light on the ide cd-rom
> driver
> stay lighted?
> 
> Thanks in advance for help,
>     Joel
> 
> 
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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From - Thu Nov 08 21:22:41 2018
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From: "James Braid" <james.braid@peace.com>
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Subject: [parisc-linux] Re: Dodgy SCSI in L2000
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Xref: news.gmane.org gmane.linux.ports.parisc:14773

Hey,

I have applied the patch just posted to the list (irq.c patch). I'm
running the latest CVS kernel on a dual 440Mhz L2000, 1Gb ram, 4x 18.2Gb
LVD SCSI disks.

I am seeing the same problems I have seen before (SCSI resets etc), BUT
the box is not kernel panicing any more - which is an improvement

Dbench works fine on single disks (i.e running one instance of dbench on
one disk) - up to 200 clients (didn't bother trying further).

But when I try to run 2 instances of dbench on any 2 disks in the box, I
get all sorts of SCSI bus resets and errors.

Heres a cut and paste from the console:

---------

scsi : aborting command due to timeout : pid 200512, scsi0, channel 0,
id 0, lun 0 Read (10) 00 02 03 78 20 00 00 08 00
sym53c8xx_abort: pid=200512 serial_number=200514
serial_number_at_timeout=200514
SCSI host 0 abort (pid 200512) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
sym53c8xx_reset: pid=200512 reset_flags=2 serial_number=200514
serial_number_at_timeout=200514
scsi : aborting command due to timeout : pid 200771, scsi0, channel 0,
id 2, lun 0 Write (10) 00 01 98 22 c8 00 00 08 00
sym53c8xx_abort: pid=200771 serial_number=200773
serial_number_at_timeout=200773
scsi : aborting command due to timeout : pid 200772, scsi0, channel 0,
id 2, lun 0 Write (10) 00 00 01 10 a8 00 00 08 00
sym53c8xx_abort: pid=200772 serial_number=200774
serial_number_at_timeout=200774
scsi : aborting command due to timeout : pid 200773, scsi0, channel 0,
id 2, lun 0 Write (10) 00 02 00 63 e0 00 00 08 00
sym53c8xx_abort: pid=200773 serial_number=200775
serial_number_at_timeout=200775
scsi : aborting command due to timeout : pid 200774, scsi0, channel 0,
id 2, lun 0 Write (10) 00 00 d0 51 b8 00 00 08 00
sym53c8xx_abort: pid=200774 serial_number=200776
serial_number_at_timeout=200776
scsi : aborting command due to timeout : pid 200775, scsi0, channel 0,
id 0, lun 0 Write (10) 00 00 40 4a 38 00 00 18 00
sym53c8xx_abort: pid=200775 serial_number=200777
serial_number_at_timeout=200777
scsi : aborting command due to timeout : pid 200776, scsi0, channel 0,
id 2, lun 0 Write (10) 00 01 b0 38 e0 00 00 08 00
sym53c8xx_abort: pid=200776 serial_number=200778
serial_number_at_timeout=200778
scsi : aborting command due to timeout : pid 200777, scsi0, channel 0,
id 2, lun 0 Write (10) 00 00 04 2d 80 00 00 08 00
sym53c8xx_abort: pid=200777 serial_number=200779
serial_number_at_timeout=200779
scsi : aborting command due to timeout : pid 200778, scsi0, channel 0,
id 2, lun 0 Write (10) 00 01 1c 5b 90 00 00 08 00
sym53c8xx_abort: pid=200778 serial_number=200780
serial_number_at_timeout=200780
scsi : aborting command due to timeout : pid 200779, scsi0, channel 0,
id 2, lun 0 Write (10) 00 00 d0 52 c0 00 00 08 00
sym53c8xx_abort: pid=200779 serial_number=200781
serial_number_at_timeout=200781
SCSI host 0 abort (pid 200780) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
sym53c8xx_reset: pid=200780 reset_flags=2 serial_number=200782
serial_number_at_timeout=200782
SCSI host 0 abort (pid 201014) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
sym53c8xx_reset: pid=201014 reset_flags=2 serial_number=201016
serial_number_at_timeout=201016
SCSI host 0 abort (pid 201161) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
sym53c8xx_reset: pid=201161 reset_flags=2 serial_number=201163
serial_number_at_timeout=201163
SCSI host 0 abort (pid 201174) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
sym53c8xx_reset: pid=201174 reset_flags=2 serial_number=201176
serial_number_at_timeout=201176
SCSI host 0 abort (pid 201187) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
sym53c8xx_reset: pid=201187 reset_flags=2 serial_number=201189
serial_number_at_timeout=201189
SCSI host 0 abort (pid 201200) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
sym53c8xx_reset: pid=201200 reset_flags=2 serial_number=201202
serial_number_at_timeout=201202
SCSI host 0 abort (pid 201213) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
sym53c8xx_reset: pid=201213 reset_flags=2 serial_number=201215
serial_number_at_timeout=201215
SCSI host 0 abort (pid 201226) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
sym53c8xx_reset: pid=201226 reset_flags=2 serial_number=201228
serial_number_at_timeout=201228

---------

And so on and so on like this. Grant has mentioned that the termination
or SCSI cables could be an issue, but as I have no replacements for this
box I cant really test this out. Before I applied the irq.c patch, the
box would panic just running dbench on one single disk.

If anyone has any ideas or possible solutions on what could be causing
this, I'd *love* to hear them. If you need any further details, just let
me know.

I've also tried compiling the Qlogic ISP (we have bunch of these cards
lying around from our SGI boxes) scsi driver but it doesn't want to
compile on PA-RISC. Are there any other SCSI cards which are known to
compile under PA-RISC? I was thinking I could then leave just the root
disk on the core I/O board and use another SCSI controller for the other
3 disks. Is this possible?

Cheers, James


-- 
James Braid
System Administrator
Peace Software
Ph:		+64 9 373 0400
Email:	james.braid@peace.com




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Subject: RE: [parisc-linux] Try to boot b2000 failled?
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Xref: news.gmane.org gmane.linux.ports.parisc:14774

Hi Seth,

Simple and efficent (why making complex when we can do simple :) )

Many thanks,
Joel

Quoting "EVERSON,SETH (HP-Loveland,ex1)" <seth_everson2@hp.com>:

> Joel -
> 
> Here is what I've been doing to install debian on my C3600 and J5000. 
> No 
> need for network or anything:
> 
> 1.  Copy the file LIFIMAGE in the disks-hppa directory to a CD-ROM
> 2.  Boot a HP-UX 10 or 11 cd
> 3.  Go to the installer, and go to a recovery console.
> 4.  Load 'dd' and 'mount'.  This will get dd and all the mount files.
> 5.  Go to a shell.
> 6.  Mount /dev/dsk/c0t0d0 to /mnt with mount -t cdfs 
> 7.  Go to /mnt, then do a 'dd if='LIFIMAGE;1' of=/dev/dsk/cXtYdZ
> bs=2048'  
>     where x, y, and z are your target scsi hard disk.  
> 8.  Reboot the machine, and boot the scsi hard disk you just targeted.
> 9.  Interact with the IPL, and your done.
> 
> The great thing is, everything gets loaded into RAM.  So, when you
> start
> the install, just partition both drives like normal, and install.  Just
> 
> make sure you do everything right the first time, or you'll have to
> repeat
> the process.
> 
> -Seth
> 
> -----Original Message-----
> From: joel.soete@freebel.net [mailto:joel.soete@freebel.net]
> Sent: Tuesday, May 14, 2002 9:03 AM
> To: joel.soete@freebel.net
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Try to boot b2000 failled?
> 
> 
> Oops... I find back a kernel pa12 and this boot better until it panics
> because of:
> ...
> root fs not found
> ...
> 
> So I suspect a mistake in the bootp-tftp config.
> In fact I would like to mount my palinux-0.9-3 cd on b180:/cdrom and use
> it
> as
> root fs to install the b2000.
> Unfortunately i do not find any example to do this. Is somebody can
> share
> its
> experience.
> 
> Thanks in advance for additionale help,
>     Joel
> 
> Quoting joel.soete@freebel.net:
> 
> > Hi all,
> > 
> > To split my gcc-3.2 and gcc-3.1 env on two different server (need
> disk
> > space
> > also), I would like to install a free b2000 workstation.
> > 
> > To do this i choose lan install (no possibilty for external
> scsi-cdrom
> > and no
> > more place to rebuild a new cdimage with recent kernel); I configure
> my
> > palinux
> > b180 as bootp-tftp server and configure in accordance with
> >
> http://pateam.esiee.fr/parisc-linux-boot/parisc-linux-boot/preparation.html.
> > 
> > In b2000 BOOT_ADMIN> boot lan, the lifimage (build with cvs palo &
> > kernel
> > 2.4.18-24 which boot well on my b180) is well found and launched but
> > hang just
> > after "Searching for devices..." and the green light on the ide
> cd-rom
> > driver
> > stay lighted?
> > 
> > Thanks in advance for help,
> >     Joel
> > 
> > 
> > -------------------------------------------------
> > This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> > 
> 
> 
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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To: Grant Grundler <grundler@dsl2.external.hp.com>
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Hi Grant,

Quoting Grant Grundler <grundler@dsl2.external.hp.com>:

> 
> HP folks in Cupertino: LinuxCOE is now locally available!
> I've set up a full Debian mirror and parts of RH.
> Tell me if something you need from LinuxCOE is missing.
> I still have some 20GB available.
> 
> Debian folks can point sources.list to 
> 
> 	http://debian.cup.hp.com/LinuxCOE/Debian
> 	ftp://debian.cup.hp.com/LinuxCOE/Debian

Any chance to be publicaly accesible?

Joel


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The config.guess default for parisc64 seems wrong to me.  The current
default is hppa64-unknown-linux-gnu.  With gcc, this results in a
64bit compiler being built.  However, there isn't a 64bit userland :-(

Under hpux11, the default on a "wide" 64bit machine is hppa2.0w-hp-hpux11*.
This configuration results in a 32bit native compiler which is what
most people want.  If you want a 64bit compiler, you have to explicitly
specify the host/target as hppa64.

At the moment, it is not possible to switch from 32bit to 64bit with
a compiler runtime option.  I know this is possible on sparc but I
believe there have been issues with libraries.  Thus, I don't think
a single gcc compiler for parisc64 is likely in the near term.

I imagine this was discussed before but I think we would be better
off with hppa2.0w-unknown-linux-gnu as the default.  This would
indicate a 32bit PA 2.0 architecture running on a 64bit wide kernel.

What do people think?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Randolph Chung wrote:
> After talking to Grant about this, I'm not convinced this is the right
> fix. It seems like do_cpu_irq_mask is already called with eiem masked,
> so I'm not sure why masking it again might make a difference....

No. eiem == External Interrupt Enable Mask.
Only the I-bit is disabled when do_cpu_irq_mask() is entered.
Bits in the EIRR are already cleared by assembler code to indicate
we are handling those interrupts.
If any bits in EIRR are set when re-enabling I-bit (in PSW),
we should get another external interrupt.

In -pa17, I removed the mfctl/mtctl calls since I-bit is supposed
to be disabled to block *all* interrupts. But supposing some
driver calls cli() and re-enables interrupts in general, the
EIRR bits (ie interrupt "vectors" in ia64 speak) we are processing 
could run into the same problem that I saw with xtime_lock.
Thus, restoring the code I removed in -pa17 that mucks with eiem
would mask issues with sti/cli in the drivers.

Conversely, any interrupt handler sittin on the interrupt stack
for long periods of time will block stuff too...the symptoms I've
heard so far don't match this scenario though.

> Can someone more familiar with this part of the kernel please take a
> look?

The patch looks fine to me. I suspect it's masking
a problem with sti()/cli() usage someplace though.

thanks,
grant



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joel.soete@freebel.net wrote:
> > 	http://debian.cup.hp.com/LinuxCOE/Debian
> > 	ftp://debian.cup.hp.com/LinuxCOE/Debian
> 
> Any chance to be publicaly accesible?

No chance. Sorry.
mirrors.kernel.org has a public mirror in the same geography.

The point of making this internal is to (a) improve the local link
rate to a mirror and (b) reduce the amount of traffic going through
HP's firewall.

grant



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Grant Grundler wrote:
> Only the I-bit is disabled when do_cpu_irq_mask() is entered.
> Bits in the EIRR are already cleared by assembler code to indicate
> we are handling those interrupts.
> If any bits in EIRR are set when re-enabling I-bit (in PSW),
> we should get another external interrupt.

I'm thinking we should:
o move the EIRR bit handling into do_cpu_irq_mask()
  (do_cpu_irq_mask() could loop until EIRR is zero).
o move I-bit handling into the entry.S assembly.

That way, EIRR and EIM handling is all in C and I-bit is all in asm.
That seems to make the most sense to me since EIRR/EIM are closely
related and I-bit is orthogonal to that.

grant



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I goofed and installed something I shouldn't have (x10) and now it
completely hangs the init process. How to I pass a "boot to single user
mode" parameter from the IPL/PALO loader?
-- 
James P. Kinney III   \Changing the mobile computing world/
President and CEO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7 






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Answered it myself. Append "single" to the last line and boot up.

On Thu, 2002-05-16 at 19:59, James P. Kinney III wrote:
> I goofed and installed something I shouldn't have (x10) and now it
> completely hangs the init process. How to I pass a "boot to single user
> mode" parameter from the IPL/PALO loader?
> -- 
> James P. Kinney III   \Changing the mobile computing world/
> President and CEO      \          one Linux user         /
> Local Net Solutions,LLC \           at a time.          /
> 770-493-8244             \.___________________________./
> 
> GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
> <jkinney@localnetsolutions.com>
> Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7 
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
-- 
James P. Kinney III   \Changing the mobile computing world/
President and CEO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7 






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Does anyone please have info, or know where I can find info on the parisc2.0
calling convention under hpux and parisc-linux?

I am attempting to add parisc support to libffi.

Thankyou.



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Subject: Re: [parisc-linux] booting to single user mode?
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"James P. Kinney III" wrote:
> Answered it myself. Append "single" to the last line and boot up.


good. I was going to point you at the FAQ.
There's a link there to "Kernel Boot Parameters".

grant



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] parsic function calling convention
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James Mc Parlane wrote:
> Does anyone please have info, or know where I can find info on the parisc2.0
> calling convention under hpux and parisc-linux?

There's several calling conventions that can run under PA2.0 architecture.
HPUX supports PA1.1 SOM and PA2.0 64-bit ELF.
The 64-bit ELF is the same for both OSs.
parisc-linux kernel has limited support for PA1.1 SOM but everything for
debian-hppa is built using PA1.1 ELF (32-bit).

I'm not aware of any authoritative, detailed documentation for PA1.1 ELF.
Since PA1.1 (32-bit) ELF is hack from the existing 64-bit ELF, 
You could start by looking at PA2.0 calling convention for HPUX.
Either docs.hp.com or www.parisc-linux.org should have that specification.
Otherwise, just write something in 'C' and see what gcc produces.

grant



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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] parsic function calling convention
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> I'm not aware of any authoritative, detailed documentation for PA1.1 ELF.
> Since PA1.1 (32-bit) ELF is hack from the existing 64-bit ELF, 
> You could start by looking at PA2.0 calling convention for HPUX.
> Either docs.hp.com or www.parisc-linux.org should have that specification.
> Otherwise, just write something in 'C' and see what gcc produces.

 From what I have seen, the 32-bit elf conventions are quite similar to
 the 32-bit som conventions. the biggest difference i know off the top
 of my head is that we don't do fp argument relocation.

 http://www.parisc-linux.org/documentation/index.html has some good
 links for the 32-bit SOM and 64-bit ELF runtime architectures.

 randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/



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From: Grant Grundler <grundler@dsl2.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] irq.c patch to fix lockups on recent kernels
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Grant Grundler wrote:
> I'm thinking we should:
> o move the EIRR bit handling into do_cpu_irq_mask()
>   (do_cpu_irq_mask() could loop until EIRR is zero).
> o move I-bit handling into the entry.S assembly.

prototype code is on ftp.parisc-linux.org/patches/irq_eirr.diff
I didn't cleanup some of entry.S stuff but it should work.
Not tested.

grant



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From: Armijn Hemel <armijn@nl.linux.org>
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Subject: [parisc-linux] installing on b2600 fails
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hi all,

I tried to install a b2600 workstation with Linux, but I couldn't get it
to work. I tried to install Debian woody (downloaded unofficial ISO from
http://cdimage-unofficial.debian.net/), which didn't want to install
(couldn't find a library). I also tried the 0.9.3 release PARISC-Linux (full
install) which also didn't work.

I got either a stack dump when it was loading the ramdisk, or I got the
following errors on the funky display on the front of the machine:

HPMC initiated, bus timeout, bad os HPMC cksm, OS HPMC br err

I am wondering what went wrong. I'm quite new to PA-RISC hardware, so
I don't know if this is a software or hardware failure. Can anyone help
me with this? Thanks in advance.

armijn

-- 
 ---------------------------------------------------------------------------
   armijn@nl.linux.org | http://people.nl.linux.org/~armijn/ | Penguin Power
 ---------------------------------------------------------------------------
                 http://nl.linux.org/ | Alles over Linux
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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] How retrieving HPA/SPA with the device node
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	Hi
I've finally found enought time to continu my long way to the HPA.
So now I've build a function in sd.c in order to retrieve the scsi_host.
But as it has been said, the pointer pci_dev in the structure scsi_host
is not always pointing to a pci_dev. For my poor 712/100, it point
to NULL :-( (it is normal, my scsi host is not a PCI one). So I'm still
stuck at this point, now I'm able to retrieve the scsi_host and scsi_dev
structures, but I'm still unable to go the parisc_device. Any idea ?

	Thanks.

Grant Grundler wrote:
> 
> Bruno Vidal wrote:
> > The pointer of the disk (/dev/sd??) is the node. Example:
> > /dev/sda2 ->> sda2 -> 0x802 -> major:0x8 -> driver "sd" with minor:0x02
> > Now how can I link 0x802 to hardware path "2/0/1"
> > So where is the link between both ????? Do you have any idea ?????
> 
> Well, there is a link. It's just not as obvious as the iotree.
> 
> drivers/scsi/sd.c:sd_open() finds the device:
> 
>         target = DEVICE_NR(inode->i_rdev);
>         if (target >= sd_template.dev_max || !rscsi_disks[target].device)
>                 return -ENXIO;  /* No such device */
> 
> And sd.h has the definition for Scsi_Disk:
> typedef struct scsi_disk {
>         unsigned capacity;      /* size in blocks */
>         Scsi_Device *device;
>         unsigned char ready;    /* flag ready for FLOPTICAL */
>         unsigned char write_prot;       /* flag write_protect for rmvable dev */
>         unsigned char sector_bit_size;  /* sector_size = 2 to the  bit size power */
>         unsigned char sector_bit_shift;         /* power of 2 sectors per FS block */
>         unsigned has_part_table:1;      /* has partition table */
> } Scsi_Disk;
> 
> Scsi_Device is *private*. It contains the ptr to Scsi_Host (defined
> in hosts.h), an instance of a SCSI controller driver. And finally,
> Scsi_Host has a pointer to pci_dev.
> 
> Since several of the data structures are intended to be private,
> I suggest adding a function to sd.c (or scsi.c) that finds and returns
> the pci_dev pointer:
> 
> struct pci_dev *sd_get_pci_dev(struct inode *inode)
> {
>         int target = DEVICE_NR(inode->i_rdev);
>         Scsi_Device scsidev = rscsi_disks[target].device;
> 
>         if (target >= sd_template.dev_max || !scsidev)
>                 return NULL;  /* No such device */
> 
>         return (scsi_dev->host->pci_dev);
> }
> 
> It would be nice if SCSI were part of the IO tree but I can understand
> reasons for not doing it. In particular, SCSI over FC doesn't lend
> itself to an IO Tree arrangement since it's really a "net". Put a SAN,
> additional FC controllers from the same host, and a few thousand
> LUNs out there and the IO tree can become an ugly mess to.
> 
> hth,
> grant
> 
> ps. I had no clue how this worked until I tracked this down starting
>     at sd_open().
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Subject: Re: [parisc-linux] parsic function calling convention
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> > I'm not aware of any authoritative, detailed documentation for PA1.1 ELF.
> > Since PA1.1 (32-bit) ELF is hack from the existing 64-bit ELF, 
> > You could start by looking at PA2.0 calling convention for HPUX.
> > Either docs.hp.com or www.parisc-linux.org should have that specification.
> > Otherwise, just write something in 'C' and see what gcc produces.
> 
>  From what I have seen, the 32-bit elf conventions are quite similar to
>  the 32-bit som conventions. the biggest difference i know off the top
>  of my head is that we don't do fp argument relocation.

Yes, that's the main difference.  For the most part, argument relocation
does not affect the code generated except in special situations (e.g.,
varargs).  Further, there are no differences in the calling conventions
for PA1.0, PA1.1 and PA2.0 in either runtime.

For embedded products, you should be aware of TARGET_PORTABLE_RUNTIME.
This affects the type of branch used for calls.  It could be specified
under hpux or linux but I have no idea whether it would work.

I have wondered if parisc-linux actually supports the PA2.0 architecture
in the ELF32 runtime.  I think that's there is more in the compiler that
could be done to take advantage of the 64-bit general registers and 64-bit
operations available under PA2.0.

There are some subtle differences between the SOM and ELF32 runtimes that
arise because of the different capabilities of the linkers.  Long calls
are more likely to be needed with the GNU linker because it places stubs
at the beginning of translation units unless you compile with
-ffunction-sections.

There are differences in the assembly language output from the compiler
for hpux and linux.  These mainly involve different directives.  The linux
directives are similar to those for the i386 linux port.

You will probably need to understand stub generation to implement libffi
if I recall correctly.

Hpux uses a segmented memory model.  Linux uses a flat model.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] installing on b2600 fails
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Armijn Hemel wrote:
> I also tried the 0.9.3 release PARISC-Linux (full
> install) which also didn't work.

The kernel on that ISO is too old.
No matter what, you need network access since the 0.9.3 bits are 6 monthes old.
ie apt-get upgrade will replace everything anyway.

Steps Paul Bame uses goes something like:
o burn Debian boot floppies image on a CD (it's a lifimage).
o boot CD
o do a network install to get the rest of the bits.

> HPMC initiated, bus timeout, bad os HPMC cksm, OS HPMC br err

The bits are too old and Debian 3.0 is about ready to release.
It's not worth chasing. I'm certain B2600 runs parisc-linux since
at least one parisc-linux developer has one.

grant



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On Fri, May 17, 2002 at 09:20:54AM -0600, Grant Grundler wrote:

> > I also tried the 0.9.3 release PARISC-Linux (full
> > install) which also didn't work.
> 
> The kernel on that ISO is too old.

Ah...that explains a lot...

> No matter what, you need network access since the 0.9.3 bits are 6 monthes old.
> ie apt-get upgrade will replace everything anyway.
> 
> Steps Paul Bame uses goes something like:
> o burn Debian boot floppies image on a CD (it's a lifimage).
> o boot CD
> o do a network install to get the rest of the bits.

Hmmkay, worth a try :)

> > HPMC initiated, bus timeout, bad os HPMC cksm, OS HPMC br err
> 
> The bits are too old and Debian 3.0 is about ready to release.

I did try an unoffical ISO (Debian 3.0), but that also didn't work.
Best to just wait for Debian 3.0?

Thanks!

armijn

-- 
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Bruno Vidal wrote:
> But as it has been said, the pointer pci_dev in the structure scsi_host
> is not always pointing to a pci_dev. For my poor 712/100, it point
> to NULL :-( (it is normal, my scsi host is not a PCI one).

The best idea we came up with was to require the dump partition be
on boot device and pull the HPA from page zero. Matthew Wilcox was
mentioning that this problem will be solved in 2.5 kernel
since it will get an IO tree similar to HPUX's.

TBH, I'm personally not interested in chasing down solutions
for boxes that don't have PCI.

hth,
grant



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> You will probably need to understand stub generation to implement libffi
> if I recall correctly.
> 
> Hpux uses a segmented memory model.  Linux uses a flat model.
> 
> Dave

Last I remember there was someone porting avcall.
They might be a good resource.

http://lists.debian.org/debian-hppa/2002/debian-hppa-200203/msg00073.html

Here is some general discussion on fp passing:
http://lists.parisc-linux.org/hypermail/parisc-linux/8277.html

c.



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Xref: news.gmane.org gmane.linux.ports.parisc:14794

hi, the problem was not with the pcb switch:

the chassis of the 735 hat a broken middle fan that has been outaged due
to really messy dirt in the wheel and therefore the fan motor just got
wrecked and the machine said: no thanks, i don't wanna live with one
fan not working :-(

what confused me was that with switching the machine on and off in a very
short time (five times in 3 seconds, fast like that) (which makes me
immediately feel sorry for the power supply) the machine turned on.

a witted HP field service engineer would have looked at the fans first,
i guess now ...

i assume the second machine to have a similar problem and will take down
the server for some offline time to clean both machines out of 10 years of dust...


but anyway, the old one was already screwed up and the new one is
working fine from now on :-)

i would also thank www.gall.de for the quick replacement of the pcb switch,


bye

Alex

--
pub  1024/05E1A80C 2001/12/16 Alexander Gabert (http://nikita.ath.cx) <pappy@nikita.ath.cx>
          Key fingerprint =  2D 84 B0 CB F5 67 8A 22  8D 37 6E 6B 8A 3B 7F D6  05 E1 A8 0C



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Hi!

Nun kannst du endlich mal kostenlos einen Dialer runterladen....
Geniesse Die shows einfach mal ohne dauernd auf die Uhr schauen zu muessen...

Ich wuensche Dir richtig viel Spass beim anschauen.....

http://usuarios.lycos.es/greatsss/

Schau es Dir an, lad es Dir kostenlos herunter
9329lINg9-971vrvT9592MjPf1-032uRll9l33



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From: Bob Corner <bcorner@telusplanet.net>
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Subject: [parisc-linux] X on my machine?
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Hi,

I'm having a little trouble installing the PARISC 0.9.3 Linux on my HP
735/99.

The installation is OK but I could not get the X server to work.

I applied the patch from the ERRATA page and ran "dpkg-reconfigure
xserver-xfree86" to create a new XF86Config-4 file.

I've tried quite a few attempts with different parameters.

Same result ... it always says ... No devices detected  ...
Fatal server error:
no screens found.

I've tried different horizontal & vertical frequencies but always the
same result.

I've attached 3 files:

1) dmesg.txt ... what dmesg prints when I boot
2) XF86Config-4 ... the X server config file
3) the log when I try to start X.

Any help would be appreciated.

Thanks,

Bob Corner



--=-Sc9Di8tYQ68vV83PA33C
Content-Disposition: attachment; filename=dmesg.txt
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain; charset=ISO-8859-1

Linux version 2.4.9-32 (root@paer) (gcc version 3.0.2 (Debian)) #1 Fri Nov =
30 19:36:30 MST 2001
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model	00002030 00000481 00000000 00000000 77b63c26 ffffffff 00000004 000000=
0a 0000000a
vers	0000000b
CPUID	vers 0 rev 0
model	9000/735
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=3D/dev/sda3 HOME=3D/ console=3Dtty0 sti=3D0 sti_f=
ont=3DVGA8x16 TERM=3Dlinux
Console: colour dummy device 160x64
Calibrating delay loop... 98.71 BogoMIPS
Memory: 126204k available
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf8000000 [1], versions 0x4, 0x0, 0x77
2. Outfield Core BA (11) at 0xf082f000 [2], versions 0x9, 0x0, 0x70
3. Outfield Core SCSI (10) at 0xf0825000 [2/0/1], versions 0x9, 0x0, 0x71
4. Outfield Core LAN (802.3) (10) at 0xf0826000 [2/0/2], versions 0x9, 0x0,=
 0x72
5. Outfield Core HIL (10) at 0xf0821000 [2/0/3], versions 0x9, 0x0, 0x73
6. Outfield Core RS-232 (10) at 0xf0823000 [2/0/4], versions 0x9, 0x0, 0x75
7. Outfield Core RS-232 (10) at 0xf0822000 [2/0/5], versions 0x9, 0x0, 0x75
8. Outfield Core Centronics (10) at 0xf0824000 [2/0/6], versions 0x9, 0x0, =
0x74
9. Outfield FW SCSI (10) at 0xf0830000 [2/0/7], versions 0x9, 0x0, 0x7c
10. Outfield Audio (10) at 0xf1000000 [2/0/8], versions 0x9, 0x0, 0x7f
11. Cobra EISA BA (11) at 0xfc000000 [4], versions 0x4, 0x0, 0x76
12. Hardball (735/99) (0) at 0xfffbe000 [8], versions 0x203, 0x0, 0x4
13. Hardball (1) at 0xfffbf000 [9], versions 0x19, 0x0, 0x9
CPU(s): 1 x PA7100 (PCX-T) at 99.000000 MHz
Cutoff version 4 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered
Mongoose EISA Adapter found at 0xfc000000
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
STI byte mode ROM at f8000000, hpa=3Df8000000
STI byte mode ROM, id 26d1482a-40a00499, conforms to spec rev. 8.02
STI device: HPA1659A
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_P=
CI enabled
ttyS00 at iomem 0xf0823800 (irq =3D 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq =3D 89) is a 16550A
Found HIL at 0xf0821000, IRQ 94
HIL: keyboard found at id 0
HIL: keymap loaded.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=3D16
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0826000, IRQ 87
82596.c: MAC of HP700 LAN read from EEPROM
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 62 8A 08 IRQ 87.
82596.c $Revision: 1.26 $
SCSI subsystem driver Revision: 1.00
53c700: consistent memory allocation failed
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0=20
scsi0 : LASI SCSI 53c700
  Vendor: DEC       Model: DSP3107LS         Rev: 441I
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
scsi0: (6:0) Enabling Tag Command Queuing
SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)
Partition check:
 sda: sda1 sda2 sda3
sticonsole_init: searching for STI ROMs
Console: switching to colour STI console 160x64
md: md driver 0.90.0 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Adding Swap: 62396k swap-space (priority -1)
eth0: link ok.

--=-Sc9Di8tYQ68vV83PA33C
Content-Disposition: attachment; filename=XF86Config-4
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain; charset=ISO-8859-1

# XF86Config-4 (XFree86 server configuration file) generated by Dexconf, th=
e
# Debian X Configuration tool, using values from the debconf database.
#
# Edit this file with caution, and see the XF86Config manual page.
# (Type "man XF86Config" at the shell prompt.)

Section "Files"
	FontPath	"unix/:7100"			# local font server
	# if the local font server has problems, we can fall back on these
	FontPath	"/usr/lib/X11/fonts/misc"
	FontPath	"/usr/lib/X11/fonts/cyrillic"
	FontPath	"/usr/lib/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/Type1"
	FontPath	"/usr/lib/X11/fonts/Speedo"
	FontPath	"/usr/lib/X11/fonts/100dpi"
	FontPath	"/usr/lib/X11/fonts/75dpi"
EndSection

Section "ServerFlags"
EndSection

Section "Module"
	Load	"ddc"
	Load	"GLcore"
	Load	"dbe"
	Load	"dri"
	Load	"extmod"
	Load	"glx"
	Load	"pex5"
	Load	"record"
	Load	"xie"
	Load	"bitmap"
	Load	"freetype"
	Load	"speedo"
	Load	"type1"
	Load	"vbe"
	Load	"int10"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"keyboard"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xfree86"
	Option		"XkbModel"	"pc102"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/ttyS0"
	Option		"Protocol"		"Microsoft"
	Option		"Emulate3Buttons"	"true"
EndSection

Section "InputDevice"
	Identifier	"Generic Mouse"
	Driver		"mouse"
	Option		"SendCoreEvents"	"true"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
	Option		"Emulate3Buttons"	"true"
EndSection

Section "Device"
	Identifier	"STI Framebuffer"
	Driver		"fbdev"
	Option		"UseFBDev"		"true"
EndSection

Section "Monitor"
	Identifier	"HP-A4033A"
	HorizSync	64
	VertRefresh	160
	Option		"DPMS"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"STI Framebuffer"
	Monitor		"HP-A4033A"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1280x1024"
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
	InputDevice	"Generic Mouse"
EndSection

Section "DRI"
	Mode	0666
EndSection

# end of XF86Config

--=-Sc9Di8tYQ68vV83PA33C
Content-Disposition: attachment; filename=XFree86.0.log
Content-Transfer-Encoding: quoted-printable
Content-Type: text/x-log; charset=ISO-8859-1


This is a pre-release version of XFree86, and is not supported in any
way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
please check the latest version in the XFree86 CVS repository
(http://www.XFree86.Org/cvs)

XFree86 Version 4.1.0.1 / X Window System
(protocol Version 11, revision 0, vendor release 6510)
Release Date: xx August 2001
	If the server is older than 6-12 months, or if your card is
	newer than the above date, look for a newer version before
	reporting problems.  (See http://www.XFree86.Org/FAQ)
Build Operating System: Linux 2.4.9-pa79 parisc64 [ELF]=20
(=3D=3D) Log file: "/var/log/XFree86.0.log", Time: Mon May 20 02:03:20 2002
(=3D=3D) Using config file: "/etc/X11/XF86Config-4"
Markers: (--) probed, (**) from config file, (=3D=3D) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(=3D=3D) ServerLayout "Default Layout"
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "HP-A4033A"
(**) |   |-->Device "STI Framebuffer"
(**) |-->Input Device "Generic Keyboard"
(**) Option "XkbRules" "xfree86"
(**) XKB: rules: "xfree86"
(**) Option "XkbModel" "pc102"
(**) XKB: model: "pc102"
(**) Option "XkbLayout" "us"
(**) XKB: layout: "us"
(=3D=3D) Keyboard: CustomKeycode disabled
(**) |-->Input Device "Configured Mouse"
(**) |-->Input Device "Generic Mouse"
(WW) The directory "/usr/lib/X11/fonts/cyrillic" does not exist.
	Entry deleted from font path.
(**) FontPath set to "unix/:7100,/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts=
/100dpi/:unscaled,/usr/lib/X11/fonts/75dpi/:unscaled,/usr/lib/X11/fonts/Typ=
e1,/usr/lib/X11/fonts/Speedo,/usr/lib/X11/fonts/100dpi,/usr/lib/X11/fonts/7=
5dpi"
(=3D=3D) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(--) using VT number 7

(WW) Cannot open APM
(EE) No OS PCI support available
(II) Addressable bus resource ranges are
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
	[1] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) OS-reported resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) OS-reported resource ranges after removing overlaps with PCI:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) All system resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
	mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
(II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,
	pm2, pm, 300sx, 500tx, mx, delta
	S3VIdentify
(II) S3VIRGE: driver (version 1.6.0) for S3 ViRGE chipsets: virge, 86C325,
	virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
	86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
	trio 3d/2x, 86C362, 86C368
(II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
	SIS300, SIS630, SIS540
(II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
	Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
	Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
	TwisterK
(II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, cyber9388,
	cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
	tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
	providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
	cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
	cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
	ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
	ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
	3dfx Voodoo3, 3dfx Voodoo5
(II) FBDev: driver for framebuffer: fbdev, afb
(II) ATI: ATI driver (version 6.3.6) for chipsets: ati
(II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
	ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
	ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
	ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
	ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
	ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
	ATI Rage 128 Mobility ML (AGP)
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
	ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
	ATI Radeon VE (AGP)
(II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,
	imstt3d
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) v4l driver for Video4Linux
	S3VProbe begin
(EE) No devices detected.

Fatal server error:
no screens found

When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to submit@bugs.debian.org.


--=-Sc9Di8tYQ68vV83PA33C--




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On Tuesday 21 May 2002 04:36, Bob Corner wrote:
STI byte mode ROM at f8000000, hpa=f8000000
STI byte mode ROM, id 26d1482a-40a00499, conforms to spec rev. 8.02
STI device: HPA1659A
pty: 256 Unix98 ptys configured

You need to have stifb activated (e.g. when Linux boots up you should see
a penguin in the left top corner). Update to a newer kernel.

Greetings,
Helge




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On Fri, May 17, 2002 at 09:49:23AM -0600, Grant Grundler wrote:

> > I did try an unoffical ISO (Debian 3.0), but that also didn't work.
> > Best to just wait for Debian 3.0?
> 
> I can't answer this and will bug someone else here to do that.
> Can you be more specific (and cc the mailing list) where
> you got the ISO from (ie file name)?

Sorry it took so long (no connectivity in the weekend and it was an extra
long weekend here due to holidays). I got it from here:

http://cdimage-unofficial.debian.net/

[click click click]

http://ftp.acc.umu.se/mirror/trasno.net/unofficial-debian-cds/woody-hppa/woody-hppa-1.raw

armijn

-- 
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Subject: [parisc-linux] stalling system clues + parisc WCHAN hack
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I doubt I'm the only who sees parisc systems become unusuably slow,
apparently because any command needing disk I/O has to wait a long time.
This isn't the same symptom as the traditional Linux problem where one
fills the buffer cache (say, by running a large tar) and then the first
interactive command is slow due to paging.  In the traditional problem,
the system fairly quickly recovers normalcy, in our case it never does,
though processes eventually finish.  It's as if a timeout is releasing a
needed lock or something.

FYI the load for reproducing this stalling behavior is to run several
network-based (haven't tried local) 'cvs update' of the linux kernel
mixed with some diffs.  The load is running on a 50+G partition if that
matters, and I've seen problems in both ext2 and ext3.

It sounds like the disk is seeking in the pattern of a heartbeat, twice
a second.  I think the front-panel has a heartbeat monitor with that rhythm.

So I did a quick, simple, ugly hack, mostly to arch-independent code, to
get WCHAN out of parisc (http://ftp.parisc-linux.org/patches/wchan.diff),
and ran a ps on a system which was stalling.  The result is attached, as
is a copy of /proc/meminfo.

The interesting clue in the 'ps' to me are the 'D' processes, which I
suspect are those who've called down_uninterruptable.  The most frequent
WCHAN culprits are wait_on_buffer/page.  Where to go next solving this
problem (oh, with least effort too unfortunately)?

Linux b2000 2.4.18-pa25 #22 Fri May 17 11:04:28 MDT 2002 parisc unknown

  PID CMD              S WCHAN
    1 ini              S pipe_poll
    2 [keventd]        S context_thread
    3 [ksoftirqd_CPU0] S start_context_thread
    4 [kswapd]         S kswapd
    5 [bdflush]        S start_context_thread
    6 [kupdated]       S sync_supers
    9 [mdrecoveryd]    S md_thread
   10 [kjournald]      S wait_on_buffer
   62 [kjournald]      S wait_on_buffer
   98 /sbin/dhclient-2 S datagram_poll
  110 /sbin/portmap    S tcp_poll
  175 /sbin/syslogd    D wait_on_buffer
  178 /sbin/klogd      S syslog
  182 /sbin/rpc.statd  S tcp_poll
  190 /usr/sbin/inetd  S tcp_poll
  206 nmbd -a          S pipe_poll
  208 /usr/sbin/sshd   S tcp_poll
  213 /usr/bin/X11/xfs S unix_poll
  215 /usr/sbin/ntpd   S datagram_poll
  219 /usr/sbin/atd    S wait_on_buffer
  222 /usr/sbin/cron   S wait4
  238 -bash            S wait4
  783 /usr/sbin/apache S wait4
 2748 /usr/sbin/lpd    S tcp_poll
 4356 /usr/sbin/apache S wait_for_connect
 4357 /usr/sbin/apache S wait_for_connect
 4358 /usr/sbin/apache S wait_for_connect
 4359 /usr/sbin/apache S wait_for_connect
 4360 /usr/sbin/apache S wait_for_connect
 4361 /usr/sbin/apache S wait_for_connect
 4717 /usr/sbin/sshd   S normal_poll
 4718 -bash            S read_chan
 4794 /USR/SBIN/CRON   S pipe_wait
 4795 /usr/bin/perl -w S wait4
 4797 /usr/bin/ssh b20 S tcp_poll
 4799 /usr/sbin/sshd   S unix_poll
 4800 /usr/bin/perl -w S wait4
 4802 /usr/sbin/sendma S pipe_wait
 4824 /bin/sh -eux /pr S wait4
 5088 /USR/SBIN/CRON   S pipe_wait
 5089 /bin/sh -c cd ia S wait4
 5090 /bin/sh -uex ./b S wait4
 5092 /usr/sbin/sendma S pipe_wait
 5179 /bin/sh -uex ./b S wait4
 5180 diff -urN --excl D wait_on_page
 5209 /bin/sh -eux /pr S wait4
 5210 cvs -Qfz4 -d:pse D wait_on_page
 5291 /USR/SBIN/CRON   S pipe_wait
 5292 /bin/sh -c test  S wait4
 5293 run-parts --repo S pipe_poll
 5296 /bin/sh /etc/cro S wait4
 5297 /bin/sh /usr/bin S wait4
 5311 /bin/sh /usr/bin S wait4
 5312 sort -f          S pipe_wait
 5313 /usr/lib/locate/ S pipe_wait
 5314 /usr/bin/find /  D wait_on_buffer
 5367 /bin/sh ./daemon S wait4
 5368 setiathome -nice R wait_on_buffer
 5381 ps -eo pid,cmd,s R wait_on_buffer

        total:    used:    free:  shared: buffers:  cached:
Mem:  525357056 521830400  3526656        0 70672384 356921344
Swap: 511696896  5632000 506064896
MemTotal:       513044 kB
MemFree:          3444 kB
MemShared:           0 kB
Buffers:         69016 kB
Cached:         347420 kB
SwapCached:       1136 kB
Active:         112296 kB
Inactive:       329744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:       513044 kB
LowFree:          3444 kB
SwapTotal:      499704 kB
SwapFree:       494204 kB



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On Tue, 21 May 2002, Armijn Hemel wrote:

> On Fri, May 17, 2002 at 09:49:23AM -0600, Grant Grundler wrote:
>
> > > I did try an unoffical ISO (Debian 3.0), but that also didn't work.
> > > Best to just wait for Debian 3.0?
> >
> > I can't answer this and will bug someone else here to do that.
> > Can you be more specific (and cc the mailing list) where
> > you got the ISO from (ie file name)?
>
> Sorry it took so long (no connectivity in the weekend and it was an extra
> long weekend here due to holidays). I got it from here:
>
> http://cdimage-unofficial.debian.net/
>
> [click click click]
>
> http://ftp.acc.umu.se/mirror/trasno.net/unofficial-debian-cds/woody-hppa/woody-hppa-1.raw

Please note that the guy doing these has run out of space and they are
starting to get quite old. I have in another place (
http://ftp.acc.umu.se/mirror/debian-cd/3.0-pre2/ ) some newer images, and
a pre-release for the actual woody images. I know there has been a few
bugs here and there, but I don't know of any hppa-specific.

Otherwise, I would suggest looking at the ftp.parisc-linux.org mirror I
have, there are some isos around there too, and they are probably better
tested for parisc-functionality. There is also a fairly small one for
doing netinstalls in that directory.

Personally, I don't have any experience in doing cd boots though. I have
only done netboot installs. (Setting up bootp+tftp and give it the
lifimage in the boot-floppies directory.)

/Mattias Wadenstein




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Mattias Wadenstein wrote:
> Personally, I don't have any experience in doing cd boots though. I have
> only done netboot installs. (Setting up bootp+tftp and give it the
> lifimage in the boot-floppies directory.)

That's what was suggested me privately - burn the boot-floppies lifimage
to CD and do a netinstall. It didn't sound like the debian CD images
had been tested recently.

grant



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[ back on-list ]

Armijn Hemel wrote:
> Just burn them? How should I boot then? The b2600 doesn't have a floppy
> drive. Don't I need PALO on the CD?

yes. CD or LAN. The lifimage has palo and vmlinux embedded in it,
parisc firmware can boot a lifimage from LAN, tape, CD or HD.
Any IO device the box has IODC for.

"boot floppies" is a gross misnomer for parisc since that's
probably the only media I've never tried to boot from.
I don't know off hand which platforms support booting from floppy.
I would guess 712 and similar vintage supports that if the
lifimage could fit on a 1.44MB floppy.

> Or do you mean I should just put
> the floppy images on a server somewhere and boot those from the network?

booting from a network is an option too.

> I'm quite desperate to be honest (and I think it shows). The machines I
> have have to be returned to HP in .nl soon (they're from the demo pool,
> trying to port yet another distro (ROCK Linux) to HPPA).

cool - keep the p-l mailing list posted on your progress.

grant

> 
> armijn
> 
> -- 
>  ---------------------------------------------------------------------------
>    armijn@nl.linux.org | http://people.nl.linux.org/~armijn/ | Penguin Power
>  ---------------------------------------------------------------------------
>                  http://nl.linux.org/ | Alles over Linux
>  ---------------------------------------------------------------------------



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Everyone -

There have been a few iterations of kernel hacking since the release notes
for the .93 release,
and I was wondering if anyone has done any work on getting the IDE support
for Sucky I/O going?

I did see a script in CVS that created the special files for IDE, and it
could actually read
CD's on the IDE CD-ROM in my C3600, but sustained transfers always resulted
in an error.

Thanks!

-Seth



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False alarm.

I can only reproduce this on a B2000.  C3000 grunted through the
test load and did not get semi-permanently upset like the B2000.  I
tried an A500 with pa8600 cpu (as has B2000) and it was ok.  B180
is fine too.

After a fresh boot, it took 20+ *minutes* to untar a kernel tree,
use dd to make 3 32Mb files, and 'cp -a' the linux tree, with almost
all the time spent in the 'cp -a' (WCHAN 'wait_on_buffer').  All the
I/O is to a 63G ext3 partition on a decent SCSI disk.  dmesg isn't
complaining (e.g., apparently no scsi timeouts).  There are no other
loads on the CPU other than normal idle daemons.  There's plenty of
free memory remaining.  CPU is normally 99% idle according to top.

Gaak

	-P



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Hi Paul,

Paul Bame wrote:
...
> 
> Linux b2000 2.4.18-pa25 #22 Fri May 17 11:04:28 MDT 2002 parisc unknown
> 
>   PID CMD              S WCHAN
>     1 ini              S pipe_poll
>     2 [keventd]        S context_thread
...

>  5368 setiathome -nice R wait_on_buffer
>  5381 ps -eo pid,cmd,s R wait_on_buffer
> 
>         total:    used:    free:  shared: buffers:  cached:
> Mem:  525357056 521830400  3526656        0 70672384 356921344
> Swap: 511696896  5632000 506064896
> MemTotal:       513044 kB
> MemFree:          3444 kB
> MemShared:           0 kB
> Buffers:         69016 kB
> Cached:         347420 kB
> SwapCached:       1136 kB
> Active:         112296 kB
> Inactive:       329744 kB
> HighTotal:           0 kB
> HighFree:            0 kB
> LowTotal:       513044 kB
> LowFree:          3444 kB
> SwapTotal:      499704 kB
> SwapFree:       494204 kB

Another question:
Do you feel normal that your system swap (swap used 5632000) with 512Mb 
of physical memoy?
I also observe this with my b2000 with 256Mb (just installed last week); 
I started to recompile the last cvs kernel and at the begining, top 
shows me mem used 22Mb and swap used 0Mb at the end more 100Mb of swap 
was used?

I do not understand very well: gcc did not cleanup correctly its space, 
  is it a kernel problem in managment of swap space or top showing wrong 
values?

Thanks in advance for info,
Joel





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Slightly off topic,

Does anyone know of a pin diagram for converting the keyboard/moues socket 
on a 715 to use PS/2 M&K

Just bought a 715 to upgrade my 712 without realising they needed a special KB.


Thanks

Rob.




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Going thru my logs like I do once a week I noticed this: 

timball@orwell {42}$ uname -a
Linux orwell 2.4.18-pa9 #1 Tue Mar 26 12:37:53 EST 2002 parisc unknown

--snip--snip--snip--
May 22 06:25:12 orwell kernel: 
May 22 06:25:12 orwell kernel: do_page_fault() pid=15193 command='apache' type=7 address=0x405b6d93
May 22 06:25:12 orwell kernel: vm_start = 0x405b6000, vm_end = 0x405b8000
May 22 06:25:12 orwell kernel: 
May 22 06:25:12 orwell kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
May 22 06:25:12 orwell kernel: PSW: 00000000000001000000000000001111 Not taintedMay 22 06:25:12 orwell kernel: r00-03  00000000 400263e0 405b7893 bff010c0
May 22 06:25:12 orwell kernel: r04-07  405c7ed4 bff01198 000eac00 000000a8
May 22 06:25:12 orwell kernel: r08-11  00000010 bff01154 00000002 00000022
May 22 06:25:12 orwell kernel: r12-15  bff01198 ffffff78 40026604 00061f18
May 22 06:25:12 orwell kernel: r16-19  00068f18 00068f18 00068f18 405c7ed4
May 22 06:25:12 orwell kernel: r20-23  00000001 405c7ed4 405b7878 400263f4
May 22 06:25:12 orwell kernel: r24-27  40026604 405b7878 000eac00 00061f18
May 22 06:25:12 orwell kernel: r28-31  40022bc6 000003b5 bff01240 4000d2bb
May 22 06:25:12 orwell kernel: sr0-3   00000047 00000047 00000000 00000047
May 22 06:25:12 orwell kernel: sr4-7   00000047 00000047 00000047 00000047
May 22 06:25:12 orwell kernel: 
May 22 06:25:12 orwell kernel: IASQ: 00000047 00000047 IAOQ: 405b6d93 405b6d97
May 22 06:25:12 orwell kernel:  IIR: 08000240    ISR: 00000047  IOR: 40501230
May 22 06:25:12 orwell kernel:  CPU:        0   CR30: 12514000 CR31: 10370000
May 22 06:25:12 orwell kernel:  ORIG_R28: 00000000
--snip--snip--snip--

I can't even tell if this is an error or not.
I'm guessing I should upgrade (it's been a few weeks now).
But everything else seems to be working just fine. 

--timball

-- 
	GPG key available on pgpkeys.mit.edu
pub  1024D/511FBD54 2001-07-23 Timothy Lu Hu Ball <timball@tux.org>
Key fingerprint = B579 29B0 F6C8 C7AA 3840  E053 FE02 BB97 511F BD54



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"EVERSON,SETH (HP-Loveland,ex1)" wrote:
> There have been a few iterations of kernel hacking since the release notes
> for the .93 release,
> and I was wondering if anyone has done any work on getting the IDE support
> for Sucky I/O going?

yes. thomas bogendoerfer got the CD support working and I don't think
anyone else has done more.

> I did see a script in CVS that created the special files for IDE, and it
> could actually read CD's on the IDE CD-ROM in my C3600, but sustained
> transfers always resulted in an error.

Well, post the kernel output (and other related data, ie kernel version
and CD-ROM type) and see if there are any takers.

grant



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s-clarob@st-aidans.cumbria.sch.uk wrote:
> Just bought a 715 to upgrade my 712 without realising they needed a
> special KB.

715's need an adapter/dongle that should have come with the system.
The dongle exports one HIL and 2 PS/2 ports.

grant



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I think I have one of these sitting around here, sans 715 to use it with. 
If you can't find it anywhere else, talk to me and I could send it or 
something.

-phil


On Wed, 22 May 2002, Grant Grundler wrote:

> s-clarob@st-aidans.cumbria.sch.uk wrote:
> > Just bought a 715 to upgrade my 712 without realising they needed a
> > special KB.
> 
> 715's need an adapter/dongle that should have come with the system.
> The dongle exports one HIL and 2 PS/2 ports.
> 
> grant
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 
===============================================================================

Phil Anderson
UNIX Systems Administrator
andersop@neverland.ncssm.edu
The_13th_Ewok@hotmail.com

the me that you know he used to have feelings
but the blood has stopped pumping and he is left to decay
the me that you know is now made up of wires
and even when i'm right with you i'm so far away
					-nine inch nails, the becoming




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On Tue, May 21, 2002 at 03:52:21PM +0200, Armijn Hemel wrote:
> On Fri, May 17, 2002 at 09:49:23AM -0600, Grant Grundler wrote:
> > Can you be more specific (and cc the mailing list) where
> > you got the ISO from (ie file name)?

Since boot-floppies 3.0.22 (released 3rd April), at least, hppa has used
a 2.4.17-pa32 kernel.  Final woody b-f will use that same kernel, so
unless you have a very old ISO, I wouldn't expect a newer one to help.

If it turns out a more recent kernel is needed for some machines, I
could do a special b-f build and ISO.

Richard




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On Thu, May 23, 2002 at 07:35:31AM +0100, Richard Hirst wrote:

> > > Can you be more specific (and cc the mailing list) where
> > > you got the ISO from (ie file name)?
> 
> Since boot-floppies 3.0.22 (released 3rd April), at least, hppa has used
> a 2.4.17-pa32 kernel.  Final woody b-f will use that same kernel, so
> unless you have a very old ISO, I wouldn't expect a newer one to help.
> 
> If it turns out a more recent kernel is needed for some machines, I
> could do a special b-f build and ISO.

Well, I tried the ISO that Mattias pointed me at. The machine boots, kernel
loads, and the Debian installer starts, but, ehr, the keyboard didn't work,
so I couldn't continue.

I suspect that there's some driver missing for the keyboard (it's a USB
keyboard).

armijn

-- 
 ---------------------------------------------------------------------------
   armijn@nl.linux.org | http://people.nl.linux.org/~armijn/ | Penguin Power
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On Tue, May 21, 2002 at 12:05:53PM -0600, Grant Grundler wrote:

> [ back on-list ]
> 
> Armijn Hemel wrote:
> > Just burn them? How should I boot then? The b2600 doesn't have a floppy
> > drive. Don't I need PALO on the CD?
> 
> yes. CD or LAN. The lifimage has palo and vmlinux embedded in it,
> parisc firmware can boot a lifimage from LAN, tape, CD or HD.
> Any IO device the box has IODC for.

Ehr...how exactly should I do that? I know the first few steps (burn
lifimage somewhere on a CD, turn on machine, insert CD), but how
should I proceed? I looked in the FAQ, but the answer (nor the question)
is there. So, basically my question is: "How do I boot a lifimage from
a CD?"

[cut]

> > I'm quite desperate to be honest (and I think it shows). The machines I
> > have have to be returned to HP in .nl soon (they're from the demo pool,
> > trying to port yet another distro (ROCK Linux) to HPPA).
> 
> cool - keep the p-l mailing list posted on your progress.

Well, I did most of the work for our sparc64 port and most of the stuff
actually is to know what's different from x86...but finding that out can
be quite cumbersome...
I don't expect too many problems. The distro is built on top of another
distro (much like Linux From Scratch) and Debian is a great distro to
use to build on. But before I get too detailed...

armijn

-- 
 ---------------------------------------------------------------------------
   armijn@nl.linux.org | http://people.nl.linux.org/~armijn/ | Penguin Power
 ---------------------------------------------------------------------------
                 http://nl.linux.org/ | Alles over Linux
 ---------------------------------------------------------------------------



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Subject: Re: [parisc-linux] installing on b2600 fails
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> Ehr...how exactly should I do that? I know the first few steps (burn
> lifimage somewhere on a CD, turn on machine, insert CD), but how
> should I proceed? I looked in the FAQ, but the answer (nor the question)
> is there. So, basically my question is: "How do I boot a lifimage from
> a CD?"

I believe there's a booting howto on the web site.

The short answer is to interrupt the boot firmware by pressing
any key in 10 seconds like it says.  Then with the CD in place,
type 'search' and wait.  It should report at least two bootable
devices similar to this:

    temporary
    nickname	bootable-device

	P0	scsi.6.0
	P1	ide

Then you type 'boot p1' or 'boot ide' (or maybe it's ide.0 I forget).

The firmware has a reasonable set of on-line help built in -- that's
how I learned how to use it.

	-P



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From: Joel Soete <joel.soete@freebel.net>
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Subject: Re: [parisc-linux] installing on b2600 fails
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Armijn Hemel wrote:
> On Thu, May 23, 2002 at 07:35:31AM +0100, Richard Hirst wrote:
> 
> 
>>>>Can you be more specific (and cc the mailing list) where
>>>>you got the ISO from (ie file name)?
>>>
>>Since boot-floppies 3.0.22 (released 3rd April), at least, hppa has used
>>a 2.4.17-pa32 kernel.  Final woody b-f will use that same kernel, so
>>unless you have a very old ISO, I wouldn't expect a newer one to help.
>>
>>If it turns out a more recent kernel is needed for some machines, I
>>could do a special b-f build and ISO.
> 
> 
> Well, I tried the ISO that Mattias pointed me at. The machine boots, kernel
> loads, and the Debian installer starts, but, ehr, the keyboard didn't work,
> so I couldn't continue.
> 
> I suspect that there's some driver missing for the keyboard (it's a USB
> keyboard).
> 
> armijn
> 
AFAIK you should prefer to install from a serial console
(anyway, i am not sure that usb keyboard and mouse are already supported?).
As serial console you can use any HP serial console if you have one at 
your disposal or better (you can log the output) a linux box using 
minicom and link the two boxes with a null-modem serial cable.
Do not also forget to disconnect the usb kbd and mouse from your b2600 
so that PDC will switch to serial port automaticaly.

I do something like this with bootp/tftp to install my b2000 last week. 
I rebuild a lifimage (could be with a xcompiler fo i386) with the one of 
the debian boot-floppy for hppa, palo and the last 2.4.18-pa24 kernel 
which i build localy. (I was not absolutly sure that 2.4.17-pa32 already 
supported ide cdrom)

Never the less the install procedure worked well untill I wanted to 
install the basic system because the check failled to found pppoe package?

Later I also encounter a well know loop problem to install kernel modules.

You should also encounter another problem because the release of palo 
installed with CD-0.9.3 do not yet support new scsi disk of 9Gb and more.

Definitly I do believe that a new cd-base.iso would be the best to help 
you to install a basic system to your project. (for me it was 'easiest' 
: once I booted with the lifimage,  I partioned my disk and 'just' had 
to copy my b180 to my b2000 with nfs)

Good luck,
	Joel

PS: Richard thanks in advance.







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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: [parisc-linux] PA8700 boots!
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Xref: news.gmane.org gmane.linux.ports.parisc:14816

I finally got my rp24xx machine (dual pa8700, 650Mhz) to boot!

I haven't committed the patch yet:
	ftp://ftp.parisc-linux.org/patches/sba_pa8700.diff

Problem was the IO PDIR was not coherent with the CPU and
thus wasn't seeing updates to the IO PDIR by the CPU.
Added some cache flushing/sync and some self modifying
code to patch those out on boxes that don't need it.

And that's why I haven't committed yet. I don't know
if and how that should really be done. I suspect I
need a FDC/SYNC/FIC to make sure the modified instructions
aren't in cache. I'm also not sure this is better since
it means sba_iopdir_entry() can't be inline...ie I
pay for an extra branch one way or another.

So I might toss this implementation and just use a global.

I also need to fixup the "unkown device" (PA8700 CPU)
in the hardware listing.

Lastly, the same PA8700 systems that need fdc for iopdir
also have some funny business WRT to Space ID hashing.
For those with access to HPUX source, look for flush_iopdir.
I don't pretend to understand what is wrong or what might
be broken for parisc-linux on those boxes.

grant



Firmware Version  42.00

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2001, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      650  MHz   Active                 Functional         750 KB 1.5 MB
      1      650  MHz   Idle                   Functional         750 KB 1.5 MB

  Central Bus Speed (in MHz)  :        120  
  Available Memory            :    3145728  KB
  Good Memory Required        :      25820  KB

   Primary boot path:    0/0/1/1.15          
   Alternate boot path:  0/0/2/1.15          
   Console path:         0/0/4/1.643         
   Keyboard path:        0/0/4/1.0           


---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > bo lan
Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Network Station Address 00306e-2661a3
System IP Address 192.168.0.60
Server IP Address 192.168.0.22

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl 1.0 grundler@gsyprf11.external.hp.com Wed May 22 19:48:50 PDT 2002

Boot image contains:
    0/vmlinux64 3942047 bytes @ 0x8800

Command line for kernel: 'HOME=/ TERM=vt100 root=/dev/sda3  console=ttyS0 palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 64-bit kernelELF64 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 2060832 mediaptr 0x1000
Segment 1 load 002f8000 size 642208 mediaptr 0x1f9000
Segment 2 load 00398000 size 410328 mediaptr 0x296000
Segment 3 load 00400000 size 16384 mediaptr 0x2fb000
Segment 4 load 00408000 size 32768 mediaptr 0x2ff000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.18-pa25 (grundler@gsyprf11.external.hp.com) (gcc version 3.0) #22 Thu May 23 23:09:37 PDT 2002
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00005e20 00000491 00000000 00000001 73a33d02 100000f0 00000008 000000b2 000000b2
vers  00000203
CPUID vers 19 rev 8 (0x00000268)
capabilities 0x5
model 9000/800/A500-6X
Total Memory: 3072 Mb
pagetable_init
On node 0 totalpages: 786432
zone(0): 786432 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=vt100 root=/dev/sda3  console=ttyS0 palo_kernel=0/vmlinux
Calibrating delay loop... 1297.61 BogoMIPS
Memory: 3043892k available
Dentry-cache hash table entries: 131072 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 9, 2097152 bytes)
Mount-cache hash table entries: 65536 (order: 8, 1048576 bytes)
Buffer-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Page-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Searching for devices...
Found devices:
1. Unknown machine (0) at 0xfffffffffffa0000 [160], versions 0x5e2, 0x0, 0x4
2. Unknown machine (0) at 0xfffffffffffa2000 [162], versions 0x5e2, 0x0, 0x4
3. Astro BC Runway Port (12) at 0xfffffffffed00000 [0], versions 0x582, 0x0, 0xb
4. Elroy PCI Bridge (13) at 0xfffffffffed30000 [0/0], versions 0x782, 0x0, 0xa
5. Elroy PCI Bridge (13) at 0xfffffffffed34000 [0/2], versions 0x782, 0x0, 0xa
6. Elroy PCI Bridge (13) at 0xfffffffffed38000 [0/4], versions 0x782, 0x0, 0xa
7. Elroy PCI Bridge (13) at 0xfffffffffed3c000 [0/6], versions 0x782, 0x0, 0xa
8. Memory (1) at 0xfffffffffed08000 [8], versions 0x9b, 0x0, 0x9
CONFIG_SMP=n  ignoring additional CPUs
CPU(s): 1 x PA8700 (PCX-W2) at 650.000000 MHz
SBA found Astro 2.1 at 0xfffffffffed00000
SBA FDC/SYNC needed
lba version TR4.0 (0x5) found at 0xfffffffffed30000
lba range[2] : ignoring GMMIO (0xfffffff804000000)
lba version TR4.0 (0x5) found at 0xfffffffffed34000
lba range[2] : ignoring GMMIO (0xfffffff904000000)
lba version TR4.0 (0x5) found at 0xfffffffffed38000
lba range[2] : ignoring GMMIO (0xfffffffa04000000)
lba version TR4.0 (0x5) found at 0xfffffffffed3c000
lba range[2] : ignoring GMMIO (0xfffffffb04000000)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch support not available.
Performance monitoring counters enabled for Unknown machine
Starting kswapd
Journalled Block Device driver loaded
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Redundant entry in serial pci_table.  Please send the output of
lspci -vv, this message (103c,1048,103c,104b)
and the manufacturer and name of serial board or modem board
to serial-pci-info@lists.sourceforge.net.
ttyS00 at iomem 0xfffffffff8000000 (irq = 132) is a 16550A
ttyS01 at iomem 0xfffffffff8000008 (irq = 132) is a 16550A
ttyS02 at iomem 0xfffffffff8000010 (irq = 132) is a 16550A
ttyS03 at iomem 0xfffffffff8000030 (irq = 132) is a 16550A
ttyS04 at iomem 0xfffffffff8000038 (irq = 132) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 65 at 0x0, 00:30:6E:26:61:A3, IRQ 128.
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 2, function 0
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 2, function 1
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 1, function 0
sym53c8xx: setting PCI_COMMAND_INVALIDATE (fix-up)
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 1, function 1
sym53c8xx: setting PCI_COMMAND_INVALIDATE (fix-up)
sym53c8xx: 53c896 detected 
sym53c875-0: rev 0x37 on pci bus 0 device 2 function 0 irq 130
sym53c875-0: ID 7, Fast-10, Parity Checking
sym53c875-1: rev 0x37 on pci bus 0 device 2 function 1 irq 131
sym53c875-1: ID 7, Fast-20, Parity Checking
sym53c896-2: rev 0x7 on pci bus 0 device 1 function 0 irq 129
sym53c896-2: ID 7, Fast-20, Parity Checking
sym53c896-2: handling phase mismatch from SCRIPTS.
sym53c896-3: rev 0x7 on pci bus 0 device 1 function 1 irq 130
sym53c896-3: ID 7, Fast-20, Parity Checking
sym53c896-3: handling phase mismatch from SCRIPTS.
scsi0 : sym53c8xx-1.7.3c-20010512
scsi1 : sym53c8xx-1.7.3c-20010512
scsi2 : sym53c8xx-1.7.3c-20010512
scsi3 : sym53c8xx-1.7.3c-20010512
  Vendor: SEAGATE   Model: ST39173LC         Rev: 5912
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi3, channel 0, id 15, lun 0
sym53c896-3-<15,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
SCSI device sda: 17781521 512-byte hdwr sectors (9104 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :  2984.800 MB/sec
   8regs_prefetch:  2400.000 MB/sec
   32regs    :  2430.800 MB/sec
   32regs_prefetch:  2283.600 MB/sec
raid5: using function: 8regs (2984.800 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 32768 buckets, 256Kbytes
TCP: Hash tables configured (established 262144 bind 65536)
ip_conntrack (8192 buckets, 65536 max)
ip_tables: (C) 2000-2002 Netfilter core team
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 400k freed
INIT: version 2.84 booting
Activating swap.
Adding Swap: 525288k swap-space (priority -1)
Checking root file system...
fsck 1.27 (8-Mar-2002)
/dev/sda3: clean, 35126/195456 files, 306933/390912 blocks
System time was Fri May 24 06:21:30 UTC 2002.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Fri May 24 06:19:43 UTC 2002.
Calculating module dependencies... depmod: Can't open /lib/modules/2.4.18-pa25/modules.dep for writing
done.
Loading modules: 
modprobe: Can't open dependencies file /lib/modules/2.4.18-pa25/modules.dep (No such file or directory)
Checking all file systems...
fsck 1.27 (8-Mar-2002)
/dev/sda4: clean, 19107/850304 files, 591710/1697536 blocks
Setting kernel variables.
Mounting local filesystems...
/dev/sda4 on /home type ext2 (rw,errors=remount-ro)
none on /dev/shm type shm (rw)
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: modprobe: modprobe: Can't open dependencies file /lib/modules/2.4.18-pa25/modules.dep (No such file or directory)
SIOCSIFADDR: No such device
modprobe: modprobe: Can't open dependencies file /lib/modules/2.4.18-pa25/modules.dep (No such file or directory)
eth1: ERROR while getting interface flags: No such device
modprobe: modprobe: Can't open dependencies file /lib/modules/2.4.18-pa25/modules.dep (No such file or directory)
SIOCSIFNETMASK: No such device
modprobe: modprobe: Can't open dependencies file /lib/modules/2.4.18-pa25/modules.dep (No such file or directory)
SIOCSIFBRDADDR: No such device
modprobe: modprobe: Can't open dependencies file /lib/modules/2.4.18-pa25/modules.dep (No such file or directory)
eth1: ERROR while getting interface flags: No such device
modprobe: modprobe: Can't open dependencies file /lib/modules/2.4.18-pa25/modules.dep (No such file or directory)
eth1: ERROR while getting interface flags: No such device
done.

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Thu May 23 23:19:46 PDT 2002

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogdeth0: Setting full-duplex based on MII#1 link partner capability of 01e1.



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Joel Soete wrote:
> AFAIK you should prefer to install from a serial console

Good idea. Then update the kernel. That's not optional.
You might have to wait until Richard has spun a newer boot floppies lifimage.

> (anyway, i am not sure that usb keyboard and mouse are already supported?).

Yes. USB works.

I'm using a C3000 at home now with 1600x1200 on PCI Vis-EG card.
I think the FX gfx that's built-into the B2600 isn't supported.
I was using serial console (minicom on an OB600) until PCI vis-EG
support was working - post 0.9.3 release.

> You should also encounter another problem because the release of palo 
> installed with CD-0.9.3 do not yet support new scsi disk of 9Gb and more.

Could you clarify?
it's not listed in the release errata.
(http://www.parisc-linux.org/release-0.9/errata-093.html)

grant



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> I also need to fixup the "unkown device" (PA8700 CPU)
> in the hardware listing.
...

bah...pasting into the xterm must have had a ^D and the
mail got sent prematurely...here's the most interesting
opart of the output.

grant

:~# cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8700 (PCX-W2)
cpu MHz         : 650.000000
model           : 9000/800/A500-6X
model name      : Unknown machine
hversion        : 0x00005e20
sversion        : 0x00000491
I-cache         : 768 KB
D-cache         : 1536 KB (WB)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
bogomips        : 1297.61
software id     : 1940077826

:~#



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Subject: [parisc-linux] Debian install on K580
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After installing the base system (woody) and rebooting, the base config
starts. Everything works fine till I get up to apt configuration. I
choose no to the below question and the error shown appears and ths
colsole (PDC) stops responding. I can still ping the box though.


Use security updates from security.debian.org?  
                                                                   . 
              <Yes>            <No>                      . 

apt-cache(429): unaligned access to 0x403d708c at ip=0x400614f7


I've had to netboot the machine with a custom kernel (2.4.18 from
parisc-linux.org) which I built with the cross compiler and mounted the
root.bin image via nfs to start the install. After that I completed the
install with the 0.9.3 CD , all due to the PDC console :) 

Regards
Robert Stanford




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Quoting Grant Grundler <grundler@dsl2.external.hp.com>:

> Joel Soete wrote:
> > AFAIK you should prefer to install from a serial console
> 
> Good idea. Then update the kernel. That's not optional.
> You might have to wait until Richard has spun a newer boot floppies
> lifimage.
> 
> > (anyway, i am not sure that usb keyboard and mouse are already
> supported?).
> 
> Yes. USB works.
> 
> I'm using a C3000 at home now with 1600x1200 on PCI Vis-EG card.
> I think the FX gfx that's built-into the B2600 isn't supported.
> I was using serial console (minicom on an OB600) until PCI vis-EG
> support was working - post 0.9.3 release.

Nice :-) (but no b2600 available even for test :( )

> 
> > You should also encounter another problem because the release of palo
> 
> > installed with CD-0.9.3 do not yet support new scsi disk of 9Gb and
> more.
> 
> Could you clarify?
> it's not listed in the release errata.
> (http://www.parisc-linux.org/release-0.9/errata-093.html)

My apolgy it is a mistake of mine (this problem was dated before cd 0.90)

Sorry again for confusion,
    Joel



-------------------------------------------------
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I ran it again and got this error

Testing apt sources ...
Err http://security.debian.org stable/updates/main Packages
  404 Not Found
Ign http://security.debian.org stable/updates/main Release
apt-get(337): unaligned access to 0x403d7008 at ip=0x4009d16f
Not-handled unaligned insn 0x0e801210
Unaligned handler failed, ret = -1



Forgot to mention, that im running ext3, is this an error related to the
filesystem ?

Robert Stanford



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Xref: news.gmane.org gmane.linux.ports.parisc:14822

Hi Robert,

Quoting Robert Stanford <rob@rotapile.com>:

> I ran it again and got this error
> 
> Testing apt sources ...
> Err http://security.debian.org stable/updates/main Packages
>   404 Not Found

This message seems to me normal, AFAIK security only concern stable release
which is steel 'POTATO' (no implementation for hppa)

> Ign http://security.debian.org stable/updates/main Release
> apt-get(337): unaligned access to 0x403d7008 at ip=0x4009d16f
> Not-handled unaligned insn 0x0e801210
> Unaligned handler failed, ret = -1
> 

This is a message from kernel saying that process namely apt-get with pid=337
made an unaligned memory access.
I frequentely encounter this message (evms tools, jfs tools) which seems to be
harmless and so make think to a kernel bug.

> 
> 
> Forgot to mention, that im running ext3, is this an error related to
> the
> filesystem ?

Last week I just install a b2000 with also ext3 fs type and just make apt-get
dist-upgrade. All works fine without any error message.

Can you retry after having remove or comment out the line related to
'security.debian.org'?

Good luck,
    Joel



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Hi all,

I just find a spare disk for my b180 and would like to test md mirroring on my
boot disk.

I am just a bit affraided because Software-RAID-HOWTO mentioned that the
persistent-superblock (requested for boot disk) is writen at the begining of disks.

Is somebody has already test this config and raidtools2 ?

Thanks in advance for info
    Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:14824

Joel

I did some playing with this some time ago. To have all filesystems under
md control then palo must understand two things:

1. how to read the md filesystem to get the kernel (can use the F0
partition for kernel to get round this)

2. how to use md / filesystem

AFAIK these 2 things just don't work right now & Paul Bame has other more
important things to do with palo right now.

The approach I take is to have a small / and small /boot as normal ext2
partitions & automatically copy these over to spare / & /boot filesystems
on mirror + hot spare disk each night. All other filesystems (including
swap) are on md. If I update the primary boot disk's F0 then I also
update the F0 slice on mirror & spare disks. If the primary boot disk
fails then the system will go down but then can boot off the mirror. Make
sure you set up PRI and ALT boot paths correctly if you want this to
happen automagically & make usre the script which copies / onto the
mirror/spare modifies /etc/fstab appropriately!

R.
PeteM

On Fri, 24 May 2002, joel.soete@freebel.net wrote:

> Hi all,
>
> I just find a spare disk for my b180 and would like to test md mirroring on my
> boot disk.
>
> I am just a bit affraided because Software-RAID-HOWTO mentioned that the
> persistent-superblock (requested for boot disk) is writen at the begining of disks.
>
> Is somebody has already test this config and raidtools2 ?
>
> Thanks in advance for info
>     Joel
>
>
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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are the 712's only capable of 8 bit colour or  is it a limitation of the
frame buffer driver ?

just curious


James S




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smithjames@comcast.net (James S) writes:

> are the 712's only capable of 8 bit colour or  is it a limitation of the
> frame buffer driver ?

The 712's only do 8 bit color.

Bdale



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Hi fellows !

Thanks to the precious help of Richard Hirst, I finally succeeded in 
building a recent Woody Net Install iso, with the latest boot-floppies 
(3.0.23) and kernel (2.4.18-pa25) available.

It contains everything you need to boot a box and install from network, 
but mind that it is an TEST ISO, with development kernel, and that it 
has not yet been tested.

It is expected to boot the most recently supported hardware.

Please report any successful boot on newly supported machines.

You can download it from these locations:
ftp://ftp.parisc-linux.org/cd-
images/testing/palinux-2.4.18-pa25-20020524-netinst.iso
http://pateam.esiee.fr/download.html

Enjoy !


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Le samedi 25 mai 2002, =E0 02:24 , Duraid Madina a =E9crit :

> Does this new ISO include Grant's patch from yesterday, allowing =
booting
> on PA-8700 machines?
>
> If so, I will be sure to test it out!
>
> 	Duraid
>
>
Well, Grant told me that his patch is not comitted yet, and not ready to=20=

be.
When it will be ready, we'll consider rebuilding the ISO :o)


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Thibaut VARENE wrote:
> You can download it from these locations:
> ftp://ftp.parisc-linux.org/cd-images/testing/palinux-2.4.18-pa25-20020524-netinst.iso

I've copied the 20020524 test ISO to:
ftp://gsyprf10.external.hp.com/pub/cd-images/palinux-2.4.18-pa25-20020524-netinst.iso

Duraid Madina wrote:
> Does this new ISO include Grant's patch from yesterday, allowing
> booting on PA-8700 machines?

sba_pa8700 patch isn't committed yet for two reasons:
  o It's not tested on anything but the rp24xx. I'm convinced it will
    crash on other boxes.
  o I'm waiting for feedback on how to properly implement
    self-modifying code in the kernel or if it's just not worth it. 

Thibaut offered to respin the ISO (he knows how to do it now)
with -pa26 (or whatever sba_pa8700.diff becomes).
With that in mind, please don't download 20020524 ISO (736 MB) unless 
you really need it *now* or want to test it on your favorite box for us.

thanks,
grant



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On Fri, May 24, 2002 at 06:59:49PM -0600, Grant Grundler wrote:
> Thibaut VARENE wrote:
> Thibaut offered to respin the ISO (he knows how to do it now)
> with -pa26 (or whatever sba_pa8700.diff becomes).
> With that in mind, please don't download 20020524 ISO (736 MB) unless 

Out by a factor of 10 ;-)  it is 73MB

Richard




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On Sat, May 25, 2002 at 02:19:38AM +0200, Thibaut VARENE wrote:
> It contains everything you need to boot a box and install from network, 

Just to clarify that, it is a 70MB ISO which includes everything you
need to install a minimal system from CD. If you want anything useful (C
compilers, X, etc) you need to install additional packages from the
network.

Richard




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Grant Grundler wrote:
> sba_pa8700 patch isn't committed yet for two reasons:
>   o It's not tested on anything but the rp24xx. I'm convinced it will
>     crash on other boxes.
>   o I'm waiting for feedback on how to properly implement
>     self-modifying code in the kernel or if it's just not worth it. 

I've decided to commit sba_pa870.diff as -pa26 w/o self modifying code.
It just didn't look like a perf improvement w/o getting really ugly.

...
> With that in mind, please don't download 20020524 ISO (736 MB) unless 

thanks Richard! (73MB) Forget my request; download all you want.

grant



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Hi all,

	I just released my sgml source of the HOWTO on my CVS. So, if you want to 
see the latest version of the HOWTO go there:
http://cvsweb.tuxfamily.org/cvs/?cvsroot=hppa#dirlist

You'll see the english and the french version of the howto. I plan to 
release next step with Debian 3.0.

You can retrieve the files:
export CVSROOT=:pserver:marteaut@cvs.tuxfamily.org:/cvsroot/hppa
cvs co howto[fr]
cd howto[fr]
make [ps|pdf|one|html|version|clean]

ps: for ps output
pdf: for pdf output
one: for one-html-file output
html: for multi-html-file output in html directory
version: gives you the version of docbook and sgmltools
clean: guess :)

Here, it works with:
ii  docbook        4.1.99
ii  docbook-book   2.0.2-1
ii  docbook-doc    30d10-7
hi  docbook-dsssl  1.76-1
ii  docbook-dsssl- 1.75-1
ii  docbook-to-man 2.0.0-10
ii  docbook-utils  0.6.10-1
ii  docbook-xml    4.1.99
ii  psgml          1.2.4-9
ii  sgml-base      1.14
ii  sgml-data      1.5.5
ii  sgmltools-lite 3.0.3.0.cvs.20

Thanks for your feedback, Thomas.




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Hi Peter,


Peter Mottram wrote:
> Joel
> 
> I did some playing with this some time ago. To have all filesystems under
> md control then palo must understand two things:
> 
> 1. how to read the md filesystem to get the kernel (can use the F0
> partition for kernel to get round this)

I undurstand F0 is a special slice that PDC has to access to load ipl

> 
> 2. how to use md / filesystem
> 

Is a ramdisk (located in the special slice /boot) would not help?
I thought to this because of my read on the use of lvm and evms 
structure system disk. Both write a script to build such ramdisk.

> AFAIK these 2 things just don't work right now & Paul Bame has other more
> important things to do with palo right now.
> 
> The approach I take is to have a small / and small /boot as normal ext2
> partitions & automatically copy these over to spare / & /boot filesystems
> on mirror + hot spare disk each night.

Well ramdisk will avoid to have to do this 'manual' mirror on F0 and 
/boot but there are quasi-static and so easy to mirror with dd. On the 
contrary / is more dynamic so I do not see how do you realise the mirror 
  of this fs?

> All other filesystems (including
> swap) are on md. If I update the primary boot disk's F0 then I also
> update the F0 slice on mirror & spare disks. If the primary boot disk
> fails then the system will go down but then can boot off the mirror. Make
> sure you set up PRI and ALT boot paths correctly if you want this to
> happen automagically & make usre the script which copies / onto the
> mirror/spare modifies /etc/fstab appropriately!
> 
> R.
> PeteM

I am now much more confident, I will try to have a look in more details.

Many thanks for all information,
	Joel





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Hello,
I recently acquired an Apollo 9000/750 system and would like to load up PALINUX on it.  Unfortunately, I do not have anything other than the system (with a serial console).  No documentation, etc.

When I boot the system up it has the following:

(c) Copyright.  Hewlett-Packard Company.  1991.
All rights reserved

PDC ROM rev. 1.2
IODC ROM rev. 1.0
128 MB of memory configured and tested.


Selecting a system to boot.

Hard booted.

ISL Revision A.00.38 OCT 26, 1994

ISL booting  hpux
Exec failed: Cannot find /stand/vmunix or /vmunix.

ISL> 

I've attempted to hookup a SCSI cd-rom drive to the system, and it briefly looks at it before going to the screen above.

How can I get this beast to boot?  It has 2 HD's in it and a tape backup/floppy unit on it as well.  It also has a network card in it, (a TPT 92 series 802.3 10BASE-T Transciever with Lanview hooked into the AUI port on the back).

Any help will be greatly appreciated.



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Subject: Re: [parisc-linux] Getting a 750 to boot
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To: Stacy Olivas <olivas@eurisko.ws>
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On Sat, May 25, 2002 at 12:54:23PM -0700, Stacy Olivas wrote:
> When I boot the system up it has the following:
> 
> (c) Copyright.  Hewlett-Packard Company.  1991.
> All rights reserved
> 
> PDC ROM rev. 1.2
> IODC ROM rev. 1.0
> 128 MB of memory configured and tested.
> 
> 
> Selecting a system to boot.
> 
> Hard booted.
> 
> ISL Revision A.00.38 OCT 26, 1994
> 
> ISL booting  hpux
> Exec failed: Cannot find /stand/vmunix or /vmunix.
> 
> ISL> 
> 
> 
> How can I get this beast to boot?  It has 2 HD's in it and a tape
> backup/floppy unit on it as well.  It also has a network card in it,
> (a TPT 92 series 802.3 10BASE-T Transciever with Lanview hooked into
> the AUI port on the back).

Probably easiest to netboot it.  When it says `Selecting a system to
boot', press the escape key.  You can then `sea' to find bootable devices.
Note that the 750 is old enough that it uses the rboot protocol rather
than bootp.  Of course, you can try a CD-ROM at this point too.

-- 
Revolutions do not require corporate support.



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Subject: Re: [parisc-linux] Getting a 750 to boot
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Hi folks,
I also have an old box and no network available.
What I have done in the past...
Taking a tip from the very, very old days of pa-risc...
was use a 100mb, external, scsi interface, removable media disk drive...
(Some of us network poor folks also don't have CD burners)
Plug it into i386 box, copy <whatever> to it, plug it into back of hppa box...

Mike


On Saturday 25 May 2002 02:54 pm, Stacy Olivas wrote:
> Hello,
> I recently acquired an Apollo 9000/750 system and would like to load up
> PALINUX on it.  Unfortunately, I do not have anything other than the system
> (with a serial console).  No documentation, etc.
>
> When I boot the system up it has the following:
>
> (c) Copyright.  Hewlett-Packard Company.  1991.
> All rights reserved
>
> PDC ROM rev. 1.2
> IODC ROM rev. 1.0
> 128 MB of memory configured and tested.
>
>
> Selecting a system to boot.
>
> Hard booted.
>
> ISL Revision A.00.38 OCT 26, 1994
>
> ISL booting  hpux
> Exec failed: Cannot find /stand/vmunix or /vmunix.
>
> ISL>
>
> I've attempted to hookup a SCSI cd-rom drive to the system, and it briefly
> looks at it before going to the screen above.
>
> How can I get this beast to boot?  It has 2 HD's in it and a tape
> backup/floppy unit on it as well.  It also has a network card in it, (a TPT
> 92 series 802.3 10BASE-T Transciever with Lanview hooked into the AUI port
> on the back).
>
> Any help will be greatly appreciated.
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: [parisc-linux] 2.4.18 SMP instability
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Regarding the below post, have the SMP issues been worked out on 2.4.18
yet? Im running 2.4.18-25 and the machine seems to lock whenever I try
to use apt with an smp kernel.

apt-get(3766): unaligned access to 0x403ce094 at ip=0x4005e47f     

Although I was doing some benchmarking and was able to make -j 3 vmlinux
using a 2.4.18-25 SMP kernel with no problems.


Robert Stanford


*cut*
--------------------------------------------------------------------
From: Matthew Wilcox (willy@debian.org)
Date: Thu Apr 11 2002 - 14:40:12 MDT

On Thu, Apr 11, 2002 at 03:16:25PM -0400, D'Ausilio, John wrote:
> Is the 2.4.18 which comes down from the archive as recent as the ones
in the
> FTP server? I'm going to boot back into the original kernel and try
getting
> the latest from the FTP server .. if that dosn't work I guess I'll get
the
> sources and build from CVS. Any other hints/clues/suggestions? Should
I just
> run single proc for now?

Yes, we've also found 2.4.18 to be unstable SMP. I believe Grant has a
handle on this problem now, so expect it to be fixed quite soon.
-------------------------------------------------------------------------




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Robert Stanford wrote:
> Regarding the below post, have the SMP issues been worked out on 2.4.18
> yet? Im running 2.4.18-25 and the machine seems to lock whenever I try
> to use apt with an smp kernel.

uhm...I see that I'm using UP kernels on my boxes right now.
I'll rebuild SMP and retest.

I did just find an SMP problem in the current EIEM handling.
Can't say if this is really causing any problems right now though.
Stop reading now if you don't know about (or don't want to) EIEM.

If enable_irq or disable_irq gets called from a CPU other than
the one the device driver is supposed to interrupt, it will set the
EIEM bit in only *that* (the wrong) CPU. The result is the interrupt
will remain masked on the target CPU. I think the solution
is to use a global "eiem_val" (set/clear bits here) to match
the global EIRR switch table.  I've thought about moving to a
per-CPU EIEM/EIRR switch table. But that's more work than I
have time for right now and would have a similar problem.
For now, we just need to update EIEM on all CPUs whenever the
eiem_val global changes.

We do NOT currently distribute interrupts.
I did write a patch to distribute IO interrupts:
	ftp://ftp.parisc-linux.org/patches/irq_distr.diff

This diff can't be applied until the EIEM issue is fixed.

I suspect we don't (usually) have a problem with EIEM since all
interrupts are going to CPU 0 (aka Monarch) and nearly all driver
initialization takes place before the system is multithreaded.
The only other possibility is processes are only running on CPU 0.
ie when loading a device driver later, it always gets initialized on the
monarch. This scenario would also match the "top" output where
a 2-way system is always 50% idle and a 4-way is 75% idle.

I'd like to learn some way of seeing which CPU is running which
processes. top doesn't seem to indicate that. I'll look at sysstat
package later.

grant



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On Sun, 26 May 2002, Grant Grundler wrote:

> Robert Stanford wrote:
> > Regarding the below post, have the SMP issues been worked out on 2.4.18
> > yet? Im running 2.4.18-25 and the machine seems to lock whenever I try
> > to use apt with an smp kernel.
In my playing w/ a J5000, the SMP kernel locks up when loading samba.  
With samba disabled, the box boots, but eventually crashes for some 
mysterious reason (I never tracked it down, just said "oh well" and went 
back to UP).  

...
> The only other possibility is processes are only running on CPU 0.
> ie when loading a device driver later, it always gets initialized on the
> monarch. This scenario would also match the "top" output where
> a 2-way system is always 50% idle and a 4-way is 75% idle.
> 
> I'd like to learn some way of seeing which CPU is running which
> processes. top doesn't seem to indicate that. I'll look at sysstat
> package later.
I tried all sorts of things to try to find out what CPU stuff's on.  Top 
is no help, /proc/stat shows all but a tiny amount of time on CPU1 (?), 
and /proc/(pid)/cpu tends to agree.  It's been a little while since I 
tried SMP, and looked at this stuff.  I forget exactly what 
/proc/(pid)/cpu said.  I havent booted an SMP kernel for about a week.  
Probably should do a cvs update and rebuild, see what happens.  If samba 
crashes that thing again, I think I'll scream :)  I just went back to the 
logs to see if anything useful was there.  There wasn't.  Just standard 
boot stuff, then it stops for about a day (I tend to screw with the box 
by remote on off-hours), then starts again.  I'll try again w/ latest 
kernel and report what happens.

-- 
Kaufman's First Law of Party Physics:
	Population density is inversely proportional
	to the square of the distance from the keg.




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On Sat, 25 May 2002 02:33:18 +0200
"Thibaut VARENE" <varenet@esiee.fr> wrote:

> 
> Le samedi 25 mai 2002,  02:24 , Duraid Madina a crit :
> 
> > Does this new ISO include Grant's patch from yesterday, allowing booting
> > on PA-8700 machines?
> >
> > If so, I will be sure to test it out!
> >
> > 	Duraid
> >
> >
> Well, Grant told me that his patch is not comitted yet, and not ready to 
> be.
> When it will be ready, we'll consider rebuilding the ISO :o)
> 

The new ISO is now ready, with -pa26 kernel.

Duraid reported a successful boot with his rp2430 (A400-6X), but the same *warnings* than for the previous ISO are still applicable :)
Any feedback would be welcomed anyway !

You can download it from this location:
http://pateam.esiee.fr/download.html
And it should be made available shortly on ftp.parisc-linux.org. :)

Enjoy !


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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From: Thomas Marteau <marteaut@tuxfamily.org>
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Subject: Re: [parisc-linux] Getting a 750 to boot
Date: Sun, 26 May 2002 15:28:05 +0200
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Hi all,

	I have a 750 in my lab. You can find some pictures there: 
http://hppa.tuxfamily.org/gal/index-750.html

I successfully install this box with 0.9.3 ISO. If you have any 
questions related to this box, mail me.

Thomas.




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From: Jeremy Drake <jeremyd@apptechsys.com>
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Subject: Re: [parisc-linux] 2.4.18 SMP instability
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On Sun, 26 May 2002, Jeremy Drake wrote:
> On Sun, 26 May 2002, Grant Grundler wrote:
> 
> > Robert Stanford wrote:
> > > Regarding the below post, have the SMP issues been worked out on 2.4.18
> > > yet? Im running 2.4.18-25 and the machine seems to lock whenever I try
> > > to use apt with an smp kernel.
> In my playing w/ a J5000, the SMP kernel locks up when loading samba.  

2.4.18-pa26 does it too. Here's the bootup sequence.  I put in the whole
thing in case anyone is interested.  If not, just skip to the bottom :)  
Next time I'll just include relevant pieces.  

What is causing that error, and why does it only happen on SMP?

Now I have to find some time to go and power-cycle that box before I can
do any more testing. :(




Firmware Version 5.0

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache 
  ---------  --------   ---------------------  -----------------  -------------
      0      440 MHz    Active                 Functional         512 kB/1 MB
      1      440 MHz    Idle                   Functional         512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:              536870912 bytes
  Good memory required:           46678016 bytes

  Primary boot path:    FWSCSI.6.0
  Alternate boot path:  SCSI.6.0
  Console path:         GRAPHICS(7)
  Keyboard path:        USB

Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


----- Main Menu -------------------------------------------------------------

      Command                           Description
      -------                           -----------
      BOot [PRI|ALT|<path>]             Boot from specified path
      PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path
      SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices

      COnfiguration [<command>]         Access Configuration menu/commands
      INformation [<command>]           Access Information menu/commands
      SERvice [<command>]               Access Service menu/commands

      DIsplay                           Redisplay the current menu
      HElp [<menu>|<command>]           Display help for menu or command
      RESET                             Restart the system
-----
Main Menu: Enter command > bo pri
Interact with IPL (Y, N, Q)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 0


HARD Booted.
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002
Bad DOS magic in extended partition

Partition Start(MB) End(MB) Id Type
1               1      15   f0 Palo
2              16      78   83 ext2
4              79   34514   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 3366227 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).Current command line:
2/vmlinux root=/dev/sda4 HOME=/ console=ttyS0 TERM=vt102
 0: 2/vmlinux
 1: root=/dev/sda4
 2: HOME=/
 3: console=ttyS0
 4: TERM=vt102

Edit which field?
(or 'b' to boot with this command line)? b

Command line for kernel: 'root=/dev/sda4 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
ELF32 executable
Entry 00100298 first 00100000 n 5
Segment 0 load 00100000 size 2322260 mediaptr 0x1000
Segment 1 load 00338000 size 840924 mediaptr 0x238000
Segment 2 load 00408000 size 8192 mediaptr 0x306000
Segment 3 load 00410000 size 32768 mediaptr 0x308000
Segment 4 load 00446258 size 102480 mediaptr 0x310258
Branching to kernel entry point 0x00100298.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.18-pa26 (root@krakatoa) (gcc version 3.0.4) #1 SMP Sun May 26 00:35:59 PDT 2002
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005bd0 00000491 00000000 00000002 776c6453 100000f0 00000008 000000b2 000000b2
vers  00000201
CPUID vers 17 rev 5 (0x00000225)
capabilities 0x3
model 9000/785/J5000
Total Memory: 512 Mb
pagetable_init
On node 0 totalpages: 131072
zone(0): 131072 pages.
zone(1): 0 pages.
zone(2): 0 pages.
LCD display at f05d0008,f05d0000 registered
Kernel command line: root=/dev/sda4 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 878.18 BogoMIPS
Memory: 507900k available
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Searching for devices...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000 [10], versions 0x582, 0x0, 0xb
2. Elroy PCI Bridge (13) at 0xfed30000 [10/0], versions 0x782, 0x0, 0xa
3. Elroy PCI Bridge (13) at 0xfed32000 [10/1], versions 0x782, 0x0, 0xa
4. Elroy PCI Bridge (13) at 0xfed38000 [10/4], versions 0x782, 0x0, 0xa
5. Elroy PCI Bridge (13) at 0xfed3c000 [10/6], versions 0x782, 0x0, 0xa
6. Forte W 2-way (0) at 0xfffa0000 [32], versions 0x5bd, 0x0, 0x4
7. Forte W 2-way (0) at 0xfffa2000 [34], versions 0x5bd, 0x0, 0x4
8. Memory (1) at 0xfed10200 [49], versions 0x88, 0x0, 0x9
CPU(s): 2 x PA8500 (PCX-W) at 440.000000 MHz
SBA found Astro 2.1 at 0xfed00000
lba version TR2.1 (0x2) found at 0xfed30000
lba version TR2.1 (0x2) found at 0xfed32000
lba version TR2.1 (0x2) found at 0xfed38000
lba version TR2.1 (0x2) found at 0xfed3c000
POSIX conformance testing by UNIFIX
FP[1] enabled: Rev 1 Model 16
SMP: Total 2 of 2 processors activated (1756.36 BogoMIPS noticed).
Waiting on wait_init_idle (map = 0x2)
All processors have done init_idle
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch enabled, polling @ 0xf0400804.
SuperIO: Found NS87560 Legacy I/O device at 00:0e.1 (IRQ 64) 
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
parport0: PC-style at 0x378, irq 101 [PCSPP(,...)]
Starting kswapd
Journalled Block Device driver loaded
STI GSC/PCI graphics driver version 0.9
STI PCI graphic ROM found at f7000000 (128 kB), fb at fb000000 (16 MB)
STI word mode ROM at f7000044, hpa at fb000000
STI id 35acda16-9a02587, conforms to spec rev. 8.0c
STI device: HPA4982A
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at port 0x03f8 (irq = 99) is a 16550A
ttyS01 at port 0x02f8 (irq = 100) is a 16550A
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
NS87415: IDE controller on PCI bus 00 dev 70
NS87415: chipset revision 3
NS87415: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:pio, hdd:pio
hda: SONY CD-ROM CDU4821, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 103
hda: ATAPI 48X CD-ROM drive, 128kB Cache
Uniform CD-ROM driver Revision: 3.12
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 48 at 0x1000, 00:10:83:35:0D:63, IRQ 66.
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 15, function 0
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 15, function 1
sym53c8xx: 53c896 detected 
sym53c896-0: rev 0x4 on pci bus 0 device 15 function 0 irq 65
sym53c896-0: ID 7, Fast-20, Parity Checking
sym53c896-0: handling phase mismatch from SCRIPTS.
sym53c896-1: rev 0x4 on pci bus 0 device 15 function 1 irq 65
sym53c896-1: ID 7, Fast-40, Parity Checking
sym53c896-1: handling phase mismatch from SCRIPTS.
scsi0 : sym53c8xx-1.7.3c-20010512
scsi1 : sym53c8xx-1.7.3c-20010512
  Vendor: SEAGATE   Model: ST336752LC        Rev: 0002
  Type:   Direct-Access                      ANSI SCSI revision: 03
Attached scsi disk sda at scsi1, channel 0, id 6, lun 0
sym53c896-1-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 31)
SCSI device sda: 71687369 512-byte hdwr sectors (36704 MB)
Partition check:
 sda: sda1 sda2 sda3 < sda5 > sda4
sticonsole_init: searching for STI ROMs
Console: switching to colour STI console 160x64
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :  1060.000 MB/sec
   8regs_prefetch:  1060.000 MB/sec
   32regs    :   752.800 MB/sec
   32regs_prefetch:   752.800 MB/sec
raid5: using function: 8regs_prefetch (1060.000 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 24Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 389k freed
INIT: version 2.84 booting
Activating swap.
Adding Swap: 497972k swap-space (priority -1)
Checking root file system...
fsck 1.27 (8-Mar-2002)
/dev/sda4: clean, 68142/4415040 files, 1437754/8815668 blocks
System time was Sun May 26 20:04:48 UTC 2002.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Sun May 26 20:04:50 UTC 2002.
Calculating module dependencies... done.
Loading modules: 
Checking all file systems...
fsck 1.27 (8-Mar-2002)
/dev/sda2: clean, 26/16064 files, 19944/64260 blocks
Setting kernel variables.
Loading the saved-state of the serial devices... 
/dev/ttyS0 at 0x03f8 (irq = 99) is a 16550A
/dev/ttyS1 at 0x02f8 (irq = 100) is a 16550A
Mounting local filesystems...
/dev/sda2 on /boot type ext2 (rw)
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: done.
Starting portmap daemon: portmap.
Starting portmapper... Mounting remote filesystems...

Setting the System Clock using the Hardware Clock as reference...
eth0: Setting full-duplex based on MII#1 link partner capability of 41e1.
System Clock set. Local time: Sun May 26 13:04:57 PDT 2002

Running ntpdate to synchronize clock.
Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting NFS common utilities: statd.
Starting mouse interface server: gpm.
Starting internet superserver: inetd.
Starting printer spooler: lpd.
Not starting NFS kernel daemon: No exports.
Starting mail transport agent: Postfix.
Starting Samba daemons: nmbd smbdsmbd(276): unaligned access to 0x4001a2b8 at ip=0x4012ea1f


-- 
He who is known as an early riser need not get up until noon.




From - Thu Nov 08 21:22:47 2018
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From: Stacy Olivas <olivas@eurisko.ws>
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Subject: Re: [parisc-linux] Getting a 750 to boot
Date: Sun, 26 May 2002 14:43:47 -0700 (PDT)
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To: Thomas Marteau <marteaut@tuxfamily.org>, olivas@eurisko.ws
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I'm going to play with it a bit tomorrow and try the Network rboot method to load it (if that doesn't work, I might try the other suggestion of pre-loading the HD on another machine and popping it back into the 750)..

If I need any help I'll let you know..

Thanks for the offer and thanks to everyone who gave me tips on how to get the thing up and running.  I'd like to see what I can do with it. :)

-Stacy

--- Thomas Marteau <marteaut@tuxfamily.org> wrote:
>Hi all,
>
>	I have a 750 in my lab. You can find some pictures there: 
>http://hppa.tuxfamily.org/gal/index-750.html
>
>I successfully install this box with 0.9.3 ISO. If you have any 
>questions related to this box, mail me.
>
>Thomas.



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Jeremy Drake wrote:
> 2.4.18-pa26 does it too. Here's the bootup sequence.  I put in the whole
> thing in case anyone is interested.  If not, just skip to the bottom :)  
> Next time I'll just include relevant pieces.  

It was ok to post the whole thing.
Did the machine "hang"?  Can you provide "TOC" output?
(push TOC button on the back and then at PDC prompt "ser pim toc")

...
> Starting Samba daemons: nmbd smbdsmbd(276): unaligned access to 0x4001a2b8 at
>    ip=0x4012ea1f

The "unaligned access" just tells us the app is touching data that
isn't aligned. That shouldn't cause a crash. Or at least if it does,
then it should crash the same way on a UP machine.

I don't know a damn thing about samba. Is it multi-threaded or
anything special? Send out broadcast packets maybe?

thanks,
grant



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Subject: [parisc-linux] kdb_v21 branch updated to -pa26, and kallsyms cross-compile
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Parisc,

All the changes from -pa24 to -p26 have been merged into the
kdb-v21 tree (that Randolph graciously started!). Thanks go
to bame's recipe!

A few tests show that it is equivalent to the patches I had 
produced (fixes to traps.c for the soft power button).

If kdb is your bag, then it should all be set to go!

---

On another note... until I get a really fast PA box, I'm going
to be cross-compiling all the time. There are issues cross-compiling 
a kdb'd kernel, and the problem is called 'kallsyms'.

After a bout of idiocy and help from Jess I had a cross version
of kallsyms (never forget to 'unset CC'). 

It seemed like I was home free, except that I ran into the same
problem as before (even with the supposed _new_ cross kallsyms).

.tmp_vmlinux1: ELF file .tmp_vmlinux1 not for this architecture

I check ./src/modutils/obj/obj_load.c and find:

  if (f->header.e_ident[EI_CLASS] != ELFCLASSM
      || f->header.e_ident[EI_DATA] != ELFDATAM
      || f->header.e_ident[EI_VERSION] != EV_CURRENT
      || !MATCH_MACHINE(f->header.e_machine))
    {
       error("ELF file %s not for this architecture", filename);
       return NULL;
    }

So I breakup the values and test individually...

.tmp_vmlinux1: ELF file .tmp_vmlinux1 not for this architecture (!MATCH_MACHINE)

The MATCH_MACHINE macro is pretty dumb.
#define MATCH_MACHINE(x)  (x == EM_PARISC)

printf what e_machine header is set to:

ELF e_machine header is 3840
.tmp_vmlinux1: ELF file .tmp_vmlinux1 not for this architecture (!MATCH_MACHINE)

I'm not sure I've _ever_ seen a EM_??? value that big (EM_PARISC=15).
A closer inspection reveals that 3840 is 15 but byte swapped.

Which leaves me wondering... what else is going to be bytesex broke in
a cross modutils?

Is anyone familiar with modutils?
What would be a good way to include some cross-kallsyms support?

c.



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On Sun, 26 May 2002, Grant Grundler wrote:

> Jeremy Drake wrote:
> > 2.4.18-pa26 does it too. Here's the bootup sequence.  I put in the whole
> > thing in case anyone is interested.  If not, just skip to the bottom :)  
> > Next time I'll just include relevant pieces.  
> 
> It was ok to post the whole thing.
> Did the machine "hang"?  Can you provide "TOC" output?
> (push TOC button on the back and then at PDC prompt "ser pim toc")
It hung.
Could you tell me where exactly I can find this button on a J5000?  Then I 
can get it for you.  I'll have physical access to the box all day 
tomorrow.
> 
> ...
> > Starting Samba daemons: nmbd smbdsmbd(276): unaligned access to 0x4001a2b8 at
> >    ip=0x4012ea1f
> 
> The "unaligned access" just tells us the app is touching data that
> isn't aligned. That shouldn't cause a crash. Or at least if it does,
> then it should crash the same way on a UP machine.
> 
> I don't know a damn thing about samba. Is it multi-threaded or
> anything special? Send out broadcast packets maybe?
Probably multi-threaded, definitely broadcasts.  It works w/o issues on 
UP, but on SMP, samba stops it cold.  With samba disabled, it seems to 
work fine.  I built a kernel on smp (make -j 2) with no issue, which is an 
improvement over the last time I tried this...

> 
> thanks,
> grant
> 

-- 
Save the whales.  Collect the whole set.




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On Sun, May 26, 2002 at 11:17:33PM -0700, Jeremy Drake wrote:
> Could you tell me where exactly I can find this button on a J5000?  Then I 
> can get it for you.  I'll have physical access to the box all day 
> tomorrow.

Little blue button, on the back near the serial ports.  It's recessed
a bit so you probably need to use a pen to push it.

-- 
Revolutions do not require corporate support.



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From: Zibing Yang <email2bing@yahoo.com>
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Subject: [parisc-linux] Can I run popular Linux software on parisc-linux?
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Hi,
I am a beginner in linux and recently got a used HP
Visualize C3600 workstation. I realized that
parisc-linux is the obvious ( the only???) solution
for me. 
I am just wondering if I could install popular Linux
software after I install parisc-linux? As far as I
know, most of the softwares were developed for
PC-based Linux. Particularly I would like to know if I
could run office-like software, windows-emulator,
video-rendering software. 
Thanks a lot. 
Zibing

__________________________________________________
Do You Yahoo!?
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Hi Thibaut,

To BAD: I made a mistake and I had to re-install my b2000.

On the other hand it is a good oportunity to test the last CD-rom.

It boot well and recognise well the ide cdrom. Nice :-)

But on the b2000 (I have no idea for b2600) the cdrom is an ide model and so
appears to be /dev/hda pseudo device.
So before install of the kernel and the base system, I had to execute a shell
and launch cd /dev; MAKEDEV hda to add require /dev/hda* then the rest works well.

Could it not be possible to add those /dev/hd[abcd]* into the initial ramdisk
(it should not take too much additional space?)?

Thanks in advance for your additionnal help and thanks again for great job,
    Joel
  
Quoting Thibaut VARENE <varenet@esiee.fr>:

> On Sat, 25 May 2002 02:33:18 +0200
> "Thibaut VARENE" <varenet@esiee.fr> wrote:
> 
> > 
> > Le samedi 25 mai 2002,  02:24 , Duraid Madina a crit :
> > 
> > > Does this new ISO include Grant's patch from yesterday, allowing
> booting
> > > on PA-8700 machines?
> > >
> > > If so, I will be sure to test it out!
> > >
> > > 	Duraid
> > >
> > >
> > Well, Grant told me that his patch is not comitted yet, and not ready
> to 
> > be.
> > When it will be ready, we'll consider rebuilding the ISO :o)
> > 
> 
> The new ISO is now ready, with -pa26 kernel.
> 
> Duraid reported a successful boot with his rp2430 (A400-6X), but the
> same *warnings* than for the previous ISO are still applicable :)
> Any feedback would be welcomed anyway !
> 
> You can download it from this location:
> http://pateam.esiee.fr/download.html
> And it should be made available shortly on ftp.parisc-linux.org. :)
> 
> Enjoy !
> 
> 
> Thibaut VARENE
> PA/Linux ESIEE Team
> http://pateam.esiee.fr/
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


-------------------------------------------------
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On Sun, 26 May 2002, Jeremy Drake wrote:

> On Sun, 26 May 2002, Grant Grundler wrote:
> 
> > Jeremy Drake wrote:
> > > 2.4.18-pa26 does it too. Here's the bootup sequence.  I put in the whole
> > > thing in case anyone is interested.  If not, just skip to the bottom :)  
> > > Next time I'll just include relevant pieces.  
> > 
> > It was ok to post the whole thing.
> > Did the machine "hang"?  Can you provide "TOC" output?
> > (push TOC button on the back and then at PDC prompt "ser pim toc")

The first time I tried today, it gave the unaligned error and said the 
following in a loop on the LCD
HPMC initiated
multiple HPMCs
HPMC initiated
Runway broad err
bad OS HPMC cksm
OS HPMC br err

When I pressed the button on the back, it said
Runway broad err
and stopped.  Had to pull the power cable -- the button wouldn't work

Here's the second time

/etc/init.d/samba start
Starting Samba daemons: nmbd smbd
[hung here]

Firmware Version 5.0

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache 
  ---------  --------   ---------------------  -----------------  -------------
      0      440 MHz    Active                 Functional         512 kB/1 MB
      1      440 MHz    Idle                   Functional         512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:              536870912 bytes
  Good memory required:           46678016 bytes

  Primary boot path:    FWSCSI.6.0
  Alternate boot path:  SCSI.6.0
  Console path:         SERIAL_1.9600.8.none
  Keyboard path:        PCI8.0.0

Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


----- Main Menu -------------------------------------------------------------

      Command                           Description
      -------                           -----------
      BOot [PRI|ALT|<path>]             Boot from specified path
      PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path
      SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices

      COnfiguration [<command>]         Access Configuration menu/commands
      INformation [<command>]           Access Information menu/commands
      SERvice [<command>]               Access Service menu/commands

      DIsplay                           Redisplay the current menu
      HElp [<menu>|<command>]           Display help for menu or command
      RESET                             Restart the system
-----
Main Menu: Enter command > ser pim toc

PROCESSOR PIM INFORMATION

-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  0000000000358cf0  000000004012e987  00000000faf010d0
04-07   00000000400190b0  0000000000000018  00000000401f4ab0  00000000400190b0
08-11   40000000400190b0  0000000000000000  00000000faf00350  00000000000ba144
12-15   000000000006f800  000000000006f800  0000000000000000  0000000000000000
16-19   0000000000000000  00000000000b2248  0000000000029494  00000000401f4ab0
20-23   0000000000000000  0000000000001f38  00000000faf010e8  0000000000000018
24-27   000000000000012c  000000000ca6b064  00000000400190a4  00000000000a0944
28-31   ffffffffffffffff  00000000000000ac  00000000faf01240  000000000006b937

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000258  0000000000000000  00000000000000c0  0000000000000018
12-15   0000000000000000  0000000000000000  0000000000106000  00000000ffffffff
16-19   0000001d9616a712  000000000000012c  000000004012ea1f  000000000f541298
20-23   000000000000012c  40000000400190b0  0000000000000000  00000000a8000000
24-27   0000000000366000  000000000ca41000  0000000000044021  00000000f0412000
28-31   0000000055555555  0000000055555555  000000001ca6c000  0000000010410000
Space Registers 0 - 7

00-03   00000000          0000012c          00000000          0000012c
04-07   0000012c          0000012c          0000012c          0000012c

IIA Space                    = 0x000000000000012c
IIA Offset                   = 0x000000004012ea23
CPU State                    = 0x9e000001

Main Menu: Enter command >

And the third:
/etc/init.d/samba start
Starting Samba daemons: nmbd smbd





Firmware Version 5.0

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache 
  ---------  --------   ---------------------  -----------------  -------------
      0      440 MHz    Active                 Functional         512 kB/1 MB
      1      440 MHz    Idle                   Functional         512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:              536870912 bytes
  Good memory required:           46678016 bytes

  Primary boot path:    FWSCSI.6.0
  Alternate boot path:  SCSI.6.0
  Console path:         SERIAL_1.9600.8.none
  Keyboard path:        PCI8.0.0

Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


----- Main Menu -------------------------------------------------------------

      Command                           Description
      -------                           -----------
      BOot [PRI|ALT|<path>]             Boot from specified path
      PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path
      SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices

      COnfiguration [<command>]         Access Configuration menu/commands
      INformation [<command>]           Access Information menu/commands
      SERvice [<command>]               Access Service menu/commands

      DIsplay                           Redisplay the current menu
      HElp [<menu>|<command>]           Display help for menu or command
      RESET                             Restart the system
-----
Main Menu: Enter command > ser pim toc

PROCESSOR PIM INFORMATION

-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  0000000000358cf0  000000004012e987  00000000faf010d0
04-07   00000000400190b0  0000000000000018  00000000401f4ab0  00000000400190b0
08-11   40000000400190b0  0000000000000000  00000000faf00350  00000000000ba144
12-15   000000000006f800  000000000006f800  0000000000000000  0000000000000000
16-19   0000000000000000  00000000000b2248  0000000000029494  00000000401f4ab0
20-23   0000000000000000  0000000000001f38  00000000faf010e8  0000000000000018
24-27   0000000000000130  000000000ca1c064  00000000400190a4  00000000000a0944
28-31   ffffffffffffffff  00000000000000ac  00000000faf01240  000000000006b937

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000260  0000000000000000  00000000000000c0  0000000000000018
12-15   0000000000000000  0000000000000000  0000000000106000  00000000ffffffff
16-19   000000e968d9578d  0000000000000130  000000004012ea1f  000000000f541298
20-23   0000000000000130  40000000400190b0  0000000000000000  00000000a8000000
24-27   0000000000366000  000000000ca1e000  0000000000044021  00000000f0412000
28-31   0000000055555555  0000000055555555  000000001ca18000  0000000010410000
Space Registers 0 - 7

00-03   00000000          00000130          00000000          00000130
04-07   00000130          00000130          00000130          00000130

IIA Space                    = 0x0000000000000130
IIA Offset                   = 0x000000004012ea23
CPU State                    = 0x9e000001

Main Menu: Enter command > 
 

-- 
I am a man: nothing human is alien to me.
		-- Publius Terentius Afer (Terence)




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Zibing Yang wrote:
> Hi,
> I am a beginner in linux and recently got a used HP
> Visualize C3600 workstation.

Beware that only Vis-EG PCI is supported by parisc-linux 
on that box.

...
> As far as I know, most of the softwares were developed for
> PC-based Linux.

Under debian, 95% of the packages build on nearly every CPU architecture.
See http://buildd.debian.org/stats/.

> Particularly I would like to know if I
> could run office-like software, windows-emulator,
> video-rendering software. 

In general, you should look for packages in "testing" here:
	http://www.debian.org/distrib/packages

kword is available though I've never used it.
I'm not aware of anyone trying to run an IA32 emulator on parisc-linux.
gimp and gqview seem to work. Not sure what's availble
for video (eg mpeg) editing.

grant



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On Monday 27 May 2002 21:07, Grant Grundler wrote:
> Zibing Yang wrote:
> > Particularly I would like to know if I
> > could run office-like software, windows-emulator,
> > video-rendering software.

> I'm not aware of anyone trying to run an IA32 emulator on parisc-linux.

fyi, bochs compiled from CVS sources (with small modifications) worked 
for me.

Greetings,
Helge




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> > I'm not aware of anyone trying to run an IA32
> emulator on parisc-linux.
> 
> fyi, bochs compiled from CVS sources (with small
> modifications) worked 
> for me.

Helge, can you provide more information about your
computer running Bochs? Are you able to run, for
example, windows 98, install stardard windows-based
softwares? How's the speed compared to the same
software run on PC+windows? Why didn't use wine? 
I am still heavily relying on windows-based software
everyday, so would love to install a windows-emulator
on my hp workstation.
Thanks a lot.
zibing



> Greetings,
> Helge


__________________________________________________
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On Mon, 27 May 2002, Zibing Yang wrote:

> > > I'm not aware of anyone trying to run an IA32
> > emulator on parisc-linux.
> > 
> > fyi, bochs compiled from CVS sources (with small
> > modifications) worked 
> > for me.
> 
> Helge, can you provide more information about your
> computer running Bochs? Are you able to run, for
> example, windows 98, install stardard windows-based
> softwares? How's the speed compared to the same
> software run on PC+windows? Why didn't use wine? 
> I am still heavily relying on windows-based software
> everyday, so would love to install a windows-emulator
> on my hp workstation.
> Thanks a lot.
> zibing
I also tried bochs on my parisc machine.  It works ok, although slow.  I 
installed NT 4 in it.  I had a few problems, but I was able to work around 
them.

The reason that wine won't work is that wine is just a windows system call 
emulator.  The program executes on the cpu, and I'm sure that none of your 
windows programs will run on a parisc cpu :)

> 
> 
> 
> > Greetings,
> > Helge
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Yahoo! - Official partner of 2002 FIFA World Cup
> http://fifaworldcup.yahoo.com
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 
Take your dying with some seriousness, however.  Laughing on the way to
your execution is not generally understood by less advanced life forms,
and they'll call you crazy.
		-- "Messiah's Handbook: Reminders for the Advanced Soul"




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Subject: Re: [parisc-linux] Can I run popular Linux software on parisc-linux?
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--- Jeremy Drake <jeremyd@apptechsys.com> wrote:
> On Mon, 27 May 2002, Zibing Yang wrote:
> 
> > > > I'm not aware of anyone trying to run an IA32
> > > emulator on parisc-linux.
> > > 
> > > fyi, bochs compiled from CVS sources (with small
> > > modifications) worked 
> > > for me.
> > 
> > Helge, can you provide more information about your
> > computer running Bochs? Are you able to run, for
> > example, windows 98, install stardard
> windows-based
> > softwares? How's the speed compared to the same
> > software run on PC+windows? Why didn't use wine? 
> > I am still heavily relying on windows-based
> software
> > everyday, so would love to install a
> windows-emulator
> > on my hp workstation.
> > Thanks a lot.
> > zibing
> I also tried bochs on my parisc machine.  It works
> ok, although slow.  I 
> installed NT 4 in it.  I had a few problems, but I
> was able to work around 
> them.
> 
> The reason that wine won't work is that wine is just
> a windows system call 
> emulator.  The program executes on the cpu, and I'm
> sure that none of your 
> windows programs will run on a parisc cpu :)
> 

How about plex86? Plex 86, bochs and wine are all
listed on
http://packages.debian.org/testing/allpackages.html.
I am confused because I thought all packages listed
there ought to work with parisc.


__________________________________________________
Do You Yahoo!?
Yahoo! - Official partner of 2002 FIFA World Cup
http://fifaworldcup.yahoo.com



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Subject: Re: [parisc-linux] Can I run popular Linux software on parisc-linux?
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On Monday 27 May 2002 23:59, Zibing Yang wrote:
> --- Jeremy Drake <jeremyd@apptechsys.com> wrote:
> > On Mon, 27 May 2002, Zibing Yang wrote:
> > > > > I'm not aware of anyone trying to run an IA32
> > > >
> > > > emulator on parisc-linux.
> > > >
> > > > fyi, bochs compiled from CVS sources (with small
> > > > modifications) worked
> > > > for me.
> > >
> > > Helge, can you provide more information about your
> > > computer running Bochs? Are you able to run, for
> > > example, windows 98, install stardard
> >
> > windows-based
> >
> > > softwares? How's the speed compared to the same
> > > software run on PC+windows? Why didn't use wine?
> > > I am still heavily relying on windows-based
> >
> > software
> >
> > > everyday, so would love to install a
> >
> > windows-emulator
> >
> > > on my hp workstation.
> > > Thanks a lot.
> > > zibing
> >
> > I also tried bochs on my parisc machine.  It works
> > ok, although slow.  I
> > installed NT 4 in it.  I had a few problems, but I
> > was able to work around
> > them.
> >
> > The reason that wine won't work is that wine is just
> > a windows system call
> > emulator.  The program executes on the cpu, and I'm
> > sure that none of your
> > windows programs will run on a parisc cpu :)
>
> How about plex86? 

Quote from the plex86 homepage (http://savannah.gnu.org/projects/plex86):
"Note:If you want to run IA-32 on a non-IA-32 architecture, then bochs is the project that you want to checkout--look for them over at SourceForge."

> Plex 86, bochs and wine are all listed on
> http://packages.debian.org/testing/allpackages.html.
> I am confused because I thought all packages listed
> there ought to work with parisc.

No, it's just a collection of _all_ source packages available.
Not all will run on any platform, e.g. there's normally no reason to get lilo for PA-RISC,
where you have to use the palo bootloader.

Last time I tried bochs was ~ 4 months back. I used it on a C3000 (400 MHz PA 2.0 CPU, UP)
and if it's speed was comparable as an 486 class CPU -iirc.

Greetings,
Helge





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Subject: Re: [parisc-linux] New testing ISO available with recent
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I tried the iso on my K580 (PDC console only) and no joy. Is there any
chance of enabling the PDC console (and/or device node in the ramdisk)
in the default kernel or does this introduce issues for other machines?

Robert Stanford


*CUT*
------------------------------------------------------------------------

Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002

Boot image contains:
    0/vmlinux32 3699025 bytes @ 0x458800
    0/vmlinux64 4733474 bytes @ 0x7e0000
    0/ramdisk 2656804 bytes @ 0xc64000

Information: No console specified on kernel command line. This is
normal.
PALO will choose the console currently used by firmware (serial).Current
comman:
0/vmlinux ramdisk_size=8192 root=/dev/ram initrd=0/ramdisk console=ttyS0
TERM=v2
 0: 0/vmlinux
 1: ramdisk_size=8192
 2: root=/dev/ram
 3: initrd=0/ramdisk
 4: console=ttyS0
 5: TERM=vt102

Edit which field?
(or 'b' to boot with this command line)? 4
console=ttyB0
Current command line:
0/vmlinux ramdisk_size=8192 root=/dev/ram initrd=0/ramdisk console=ttyB0
TERM=v2
 0: 0/vmlinux
 1: ramdisk_size=8192
 2: root=/dev/ram
 3: initrd=0/ramdisk
 4: console=ttyB0
 5: TERM=vt102

Edit which field?
(or 'b' to boot with this command line)? b

Command line for kernel: 'ramdisk_size=8192 root=/dev/ram console=ttyB0
TERM=vt'
Selected kernel: /vmlinux from partition 0
Selected ramdisk: /ramdisk from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... 
This box can boot either 32 or 64-bit kernels...Both kernels available,
choosine
Entry 00100000 first 00100000 n 6
Segment 0 load 00100000 size 2028032 mediaptr 0x1000
Segment 1 load 002f0000 size 299424 mediaptr 0x1f1000
Segment 2 load 0033c000 size 393548 mediaptr 0x23b000
Segment 3 load 003a0000 size 8192 mediaptr 0x29c000
Segment 4 load 003a8000 size 32768 mediaptr 0x29e000
Segment 5 load 003d1538 size 102176 mediaptr 0x2a6538
Loading ramdisk 2656804 bytes @ 3fd66000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org




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Hi,

I've tried an install from the 0.9.3 CD, but the kernel hangs shortly after
creating the ramdisk with the last message being "Branching to kernel entry
point 0x00100000. Switching console, If this is the last message you see ...."

I'm doing the install from an external SCSI DVD-ROM and using the web console.

Could anyone give me some pointers as to kernel parameters that need to be passed
to PALO or whether I need to use a serial console please.

Thanks
Jonathan Pulfer


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On Mon, May 27, 2002 at 12:13:21AM -0400, Carlos O'Donell Jr. wrote:
> Parisc,
> 
> All the changes from -pa24 to -p26 have been merged into the
> kdb-v21 tree (that Randolph graciously started!). Thanks go
> to bame's recipe!
> 
> A few tests show that it is equivalent to the patches I had 
> produced (fixes to traps.c for the soft power button).
> 
> If kdb is your bag, then it should all be set to go!

I can't get it to boot on my C110 - it gets stuck at the old familar "if this is
the last message you see" message. I can run the Debian 2.4.18 kernel OK on this
box.

Any ideas anyone?

patrick




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Subject: Re: [parisc-linux] kdb_v21 branch updated to -pa26, and kallsyms
 cross-compile
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I have it running on a C110 currently. It was installed however on a
712/100 and drive was copied and kernel recompiled for the 7200 series
CPU. Are you running graphic or serial console? I am running serial
console only.

MaShaun Jones


On Tue, 28 May 2002, Patrick Caulfield wrote:

> On Mon, May 27, 2002 at 12:13:21AM -0400, Carlos O'Donell Jr. wrote:
> > Parisc,
> > 
> > All the changes from -pa24 to -p26 have been merged into the
> > kdb-v21 tree (that Randolph graciously started!). Thanks go
> > to bame's recipe!
> > 
> > A few tests show that it is equivalent to the patches I had 
> > produced (fixes to traps.c for the soft power button).
> > 
> > If kdb is your bag, then it should all be set to go!
> 
> I can't get it to boot on my C110 - it gets stuck at the old familar "if this is
> the last message you see" message. I can run the Debian 2.4.18 kernel OK on this
> box.
> 
> Any ideas anyone?
> 
> patrick
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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On Tue, May 28, 2002 at 09:49:36AM -0500, Orac wrote:
> I have it running on a C110 currently. It was installed however on a
> 712/100 and drive was copied and kernel recompiled for the 7200 series
> CPU. Are you running graphic or serial console? I am running serial
> console only.
 
Serial. I've tried leaving after boot to see if it comes up but I can't see it
but nothing seems to happen (can't ping the box).

Could you send me your .config (or even the kernel!) please?

patrick




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> Could anyone give me some pointers as to kernel parameters that need to be pa
> ssed
> to PALO or whether I need to use a serial console please.

Try it -- there are still unsupported graphics cards out there.

	-P



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Jonathan Pulfer wrote:
> Could anyone give me some pointers as to kernel parameters that need to
> be passed to PALO or whether I need to use a serial console please.

I suggest trying serial console if you can.
I'm not intimately familiar with web console on A180's but have
heard it's not the same as remote consoles on other parisc servers.

grant



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Jeremy Drake wrote:
> I'll try.  BTW, the HPMC only happens sometimes.  Most of the time it just 
> hangs.  But HPMC starts if I hit the button on the back and let it boot.

ok. This is an interesting symptom.

...
> General Registers 0 - 31
> 00-03   0000000000000000  0000000a44b3921e  0000000000019bf0  00000000f400400
>   0

GR02 is the return pointer - but it's not a kernel address.
Possible PDC or something else.

...
> IIA Space                    = 0x0000000000000000
> IIA Offset                   = 0x0000000000019bf8

IIA is the instruction pointer. Also not a valid kernel address.
It's possible we are getting a "double fault" and the first
one is overwriting the original HPMC.

> Check Type                   = 0x20000000
> CPU State                    = 0x9e000004
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x0030103b
> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0x000000fff4004014
> System Requestor Address     = 0xfffffffffffa0000

This is useful. The system *probably* died trying to access 0xf4004014.
I could try to look up CPU State but I'm out of time.


Here are the next steps:
1) figure out who is touching 0xf4004014.
   I didn't see anything in the console output.
   (http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016342.html)
   Can you look in /proc/iomem?
   My C3000 has:
   f4000000-f4ffffff : LBA PCI LMMIO
     f4007000-f4007fff : usb-ohci
     f4008000-f40083ff : tulip

2) figure out if the access is because of bad DMA killing the IOMMU
   or just the chip not responding.

It remotely possible the latest commit I made will affect this problem.
Can you retry with -pa28 (or -pa29)?

grant



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> I can't get it to boot on my C110 - it gets stuck at the old familar "if this is
> the last message you see" message. I can run the Debian 2.4.18 kernel OK on this
> box.
> Any ideas anyone?
> patricki

What gcc version are you using to compile your kernel?
What kernel parameters have you appended?
What version of modutils are you using?
Send your .config?
Serial console?

Helpful is the documentation can be found at:
http://oss.sgi.com/projects/kdb/

c.



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From: Jeremy Drake <jeremyd@apptechsys.com>
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Subject: Re: [parisc-linux] 2.4.18 SMP instability
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Xref: news.gmane.org gmane.linux.ports.parisc:14867

On Tue, 28 May 2002, Grant Grundler wrote:

> It remotely possible the latest commit I made will affect this problem.
> Can you retry with -pa28 (or -pa29)?
Sure.  No problem.  I've been trying to keep the kernel as up-to-date as 
possible...

> 
> grant
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 
Adult, n.:
	One old enough to know better.




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Xref: news.gmane.org gmane.linux.ports.parisc:14868

On Tue, 28 May 2002, Jeremy Drake wrote:

> On Tue, 28 May 2002, Grant Grundler wrote:
> 
> > It remotely possible the latest commit I made will affect this problem.
> > Can you retry with -pa28 (or -pa29)?
> Sure.  No problem.  I've been trying to keep the kernel as up-to-date as 
> possible...
OK, I was doing an apt-get update, and the damn thing died at Reading 
Package Lists... 0%.  I'll see what's up with it when I can, do you want 
ser pim, ser pim toc, or just wait for a new kernel?  (this sort of thing 
happens a lot on smp, but this box is surprisingly stable on UP)

Some things that occured to me about the hardware that may be influencing 
this.  The on-board USB on this box is broken (as in physically damaged).  
I have a pci usb card in there for typing on the graphics console, and 
when I installed it into the first slot recommended by the manual (2 I 
think) the box did some HPMC stuff when it tried to do selftests.  I moved 
it to slot 8 and everything seems happy with it.  Maybe something in the 
smp code is aggrevating these problems...

> 
> > 
> > grant
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> 
> 

-- 
Tact in audacity is knowing how far you can go without going too far.
		-- Jean Cocteau




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Xref: news.gmane.org gmane.linux.ports.parisc:14869

On Tue, 28 May 2002, Jeremy Drake wrote:

> On Tue, 28 May 2002, Jeremy Drake wrote:
> 
> > On Tue, 28 May 2002, Grant Grundler wrote:
> > 
> > > It remotely possible the latest commit I made will affect this problem.
> > > Can you retry with -pa28 (or -pa29)?
> > Sure.  No problem.  I've been trying to keep the kernel as up-to-date as 
> > possible...
> OK, I was doing an apt-get update, and the damn thing died at Reading 
> Package Lists... 0%.  I'll see what's up with it when I can, do you want 
> ser pim, ser pim toc, or just wait for a new kernel?  (this sort of thing 
> happens a lot on smp, but this box is surprisingly stable on UP)
> 
The LCD has a network, the HDD and an unfilled heart on the screen -- not 
changing.

The console says apt-get (668): unaligned access to 0x403ce08c it 
ip=0x4005e4f7

The TOC button had no effect.  Here's a ser pim from after I pulled the 
power and restarted it.  It doesn't look particularly helpful.

ser pim

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

   No valid timestamp

HPMC Chassis Codes = 2cbf0  

General Registers 0 - 31
00-03   0000000000000000  000000001035eee0  00000000101009dc  0000000000800327
04-07   000000000001efff  000000000006cd00  0000000010410000  00000000f0002f68
08-11   0000000000000000  0000000000000003  000000000004000e  00000000103a5178
12-15   0000000000000000  00000000ffffffff  0000000000000001  00000000f0400004
16-19   00000000f00008c4  00000000f000017c  00000000f0000174  0000000010408000
20-23   0000000000000000  00000000103382a0  00000000103597c4  0000000000000000
24-27   00000000103598a0  0000000000000032  0000000000000019  0000000010338010
28-31   0000000000000000  0000000000000010  0000000010408700  00000000103598a0

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000106  0000000000000000  00000000000000c0  000000000000001f
12-15   0000000000000000  0000000000000000  0000000000106000  00000000ffffffff
16-19   00001d631d9a90dc  0000000000000000  00000000101009e0  000000004a740028
20-23   0000000000000000  0000000000000000  000000000004ff0f  0000000000000000
24-27   0000000000366000  000000001f571000  0000000000044021  00000000f0412000
28-31   0000000055555555  0000000055555555  0000000010408000  0000000010410000
Space Registers 0 - 7

00-03   00000000          00000083          00000000          00000083
04-07   00000000          00000000          00000000          00000000

<Press any key to continue (q to quit)> 

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x00000000101009e4
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030000d
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffffa0000
System Requestor Address     = 0xfffffffffffa2000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000  0000000000000000
04-07   2ff8e00000000001  000000011015fa8c  1036505000000000  00000001f0400004
08-11   1036505000000002  ffffffff0000000a  0000000100000000  1041fdd31035d020
12-15   ffffffff000000ff  103a4000101482f4  103a4000ffff99ef  1115070010110264
16-19   2ff8e00011150000  0000000000000002  000000001035d010  1035981010358810
20-23   1035901010359810  103598102ff8e000  cccccccd51eb874f  0000000333333334
24-27   b38cf9b100000450  5555555555555555  5555555555555555  5555555555555555
28-31   3031323334353637  383961621014859c  6768696a6b6c6d6e  6f70717273747576

<Press any key to continue (q to quit)> 


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81841000000000
Available Memory             = 0x0000000020000000
CPU Diagnose Register 2      = 0x0201000000000004
CPU Status Register 0        = 0x3440c24000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x4820000000000000
Read Short LOG               = 0xc1a0f0f0f0400804
ERROR_STATUS                 = 0x0000000000100010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0xc1bff0fffed08040
RUN_DATA_LOW                 = 0xc1bff0fffed08040
RUN_CTRL                     = 0x0000021c00001418
RUN_ADDR                     = 0xc1bff0fffed08040
System Responder Path        = 0x00ffffffffffffff


HPMC PIM Analysis Information:

   No valid timestamp



Memory/IO Controller Error Analysis Information:


<Press any key to continue (q to quit)> 

-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000


-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000000000
CPU State                    = 0x00000000


<Press any key to continue (q to quit)> 

-----------------  Processor 1 HPMC Information ------------------

   No valid timestamp

HPMC Chassis Codes = No chassis codes logged

General Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

<Press any key to continue (q to quit)> 

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000000000
Check Type                   = 0x00000000
CPU State                    = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

Floating-Point Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000

<Press any key to continue (q to quit)> 

Check Summary                = 0x0000000000000000
Available Memory             = 0x0000000000000000
CPU Diagnose Register 2      = 0x0000000000000000
CPU Status Register 0        = 0x0000000000000000
CPU Status Register 1        = 0x0000000000000000
SADD LOG                     = 0x0000000000000000
Read Short LOG               = 0x0000000000000000
ERROR_STATUS                 = 0x0000000000000000
MEM_ADDR                     = 0x0000000000000000
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x0000000000000000
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0x0000000000000000
RUN_DATA_LOW                 = 0x0000000000000000
RUN_CTRL                     = 0x0000000000000000
RUN_ADDR                     = 0x0000000000000000
System Responder Path        = 0x0000000000000000


HPMC PIM Analysis Information:

   No valid timestamp



Memory/IO Controller Error Analysis Information:


<Press any key to continue (q to quit)> 

-----------------  Processor 1 LPMC Information ------------------

Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000


-----------------  Processor 1 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000000000
CPU State                    = 0x00000000


<Press any key to continue (q to quit)> 

Memory Error Log Information:

   No valid timestamp

   No memory errors logged


I/O Module Error Log Information:

   No valid timestamp

   No I/O module errors logged

Main Menu: Enter command > 
Main Menu: Enter command > 
> 
> > 
> > > 
> > > grant
> > > 
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > > 
> > 
> > 
> 
> 

-- 
I called my parents the other night, but I forgot about the time difference.
They're still living in the fifties.
		-- Strange de Jim




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Subject: [parisc-linux] PATCH: flush_icache_page() and flush_icache_range()
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Xref: news.gmane.org gmane.linux.ports.parisc:14870

Hi,
  gdb has a problem in that it often doesn't stop the target program
when you do a 'step' or 'next'.  This is because it plants breakpoints,
but those breakpoints sit in the data cache and don't get flushed
through to be visible as code in time.  We need a flush_icache_page()
implementation to fix this; the following adds that and
flush_icache_range() also.  It does fix gdb for me on my a500.

Posted here for comments, before commiting.  I modelled the new
flush_kernel_icache_page on flush_kernel_dcache_page, just changing the
stride and fdc to fic.

Richard


Index: include/asm-parisc/pgalloc.h
===================================================================
RCS file: /var/cvs/linux/include/asm-parisc/pgalloc.h,v
retrieving revision 1.34
diff -u -r1.34 pgalloc.h
--- include/asm-parisc/pgalloc.h	2001/09/30 06:06:47	1.34
+++ include/asm-parisc/pgalloc.h	2002/05/28 23:52:41
@@ -121,9 +121,9 @@
 	}
 }
 
-#define flush_icache_page(vma,page)
+#define flush_icache_page(vma,page)	do { flush_kernel_dcache_page(page_address(page)); flush_kernel_icache_page(page_address(page)); } while (0)
 
-#define flush_icache_range flush_kernel_icache_range_asm
+#define flush_icache_range(s,e)		do { flush_kernel_dcache_range_asm(s,e); flush_kernel_icache_range_asm(s,e); } while (0)
 
 /* TLB flushing routines.... */
 
Index: arch/parisc/kernel/pacache.S
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/pacache.S,v
retrieving revision 1.10
diff -u -r1.10 pacache.S
--- arch/parisc/kernel/pacache.S	2001/09/06 09:44:07	1.10
+++ arch/parisc/kernel/pacache.S	2002/05/28 23:52:42
@@ -747,6 +747,50 @@
 
 	.procend
 
+	.export flush_kernel_icache_page
+
+flush_kernel_icache_page:
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+	ldil    L%icache_stride,%r1
+	ldw     R%icache_stride(%r1),%r23
+
+#ifdef __LP64__
+	depdi,z 1,63-PAGE_SHIFT,1,%r25
+#else
+	depwi,z 1,31-PAGE_SHIFT,1,%r25
+#endif
+	add     %r26,%r25,%r25
+	sub     %r25,%r23,%r25
+
+
+1:      fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	fic,m   %r23(%r26)
+	CMPB<<  %r26,%r25,1b
+	fic,m   %r23(%r26)
+
+	sync
+	bv      %r0(%r2)
+	nop
+	.exit
+
+	.procend
+
 	.export flush_kernel_icache_range_asm
 
 flush_kernel_icache_range_asm:




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> Hi,
>   gdb has a problem in that it often doesn't stop the target program
> when you do a 'step' or 'next'.  This is because it plants breakpoints,
> but those breakpoints sit in the data cache and don't get flushed
> through to be visible as code in time.  We need a flush_icache_page()
> implementation to fix this; the following adds that and
> flush_icache_range() also.  It does fix gdb for me on my a500.

Good find! I'll give it a try.  Can you now print function results?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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I don't know if this is related to my other problems or not, but when 
booting an SMP 2.4.18-pa29 kernel from CVS, the box stops after displaying 
"Freeing Unused Kernel Memory".  The box is still semi-responsive, in that 
stuff sent to the serial  console is echoed back, and the power button 
makes it say "shutting down" but nothing happens beyond that.

I'm going to try a UP version of this, to see if I get the same thing.

-- 
Let us endeavor so to live that when we come to die even the undertaker will be
sorry.
		-- Maek Twain, "Pudd'nhead Wilson's Calendar"




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On Tue, 28 May 2002, Jeremy Drake wrote:

> I don't know if this is related to my other problems or not, but when 
> booting an SMP 2.4.18-pa29 kernel from CVS, the box stops after displaying 
> "Freeing Unused Kernel Memory".  The box is still semi-responsive, in that 
> stuff sent to the serial  console is echoed back, and the power button 
> makes it say "shutting down" but nothing happens beyond that.
> 
> I'm going to try a UP version of this, to see if I get the same thing.
The UP version is fine.  SMP just hates me, I guess :(
> 
> 

-- 
It were not best that we should all think alike; it is difference of opinion
that makes horse-races.
		-- Mark Twain, "Pudd'nhead Wilson's Calendar"




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Jeremy Drake wrote:
> OK, I was doing an apt-get update, and the damn thing died at Reading 
> Package Lists... 0%.  I'll see what's up with it when I can, do you want 
> ser pim, ser pim toc, or just wait for a new kernel?

If the box HPMC'd, I'd like the "ser pim".

> Some things that occured to me about the hardware that may be influencing 
> this.  The on-board USB on this box is broken (as in physically damaged).  

That's a good observation. Can you characterize how extensive is the
physical damage?

I don't recall anything on the previous console output that suggests
the USB interface driver isn't happy.

> I have a pci usb card in there for typing on the graphics console, and 
> when I installed it into the first slot recommended by the manual (2 I 
> think) the box did some HPMC stuff when it tried to do selftests.  I moved 
> it to slot 8 and everything seems happy with it.  Maybe something in the 
> smp code is aggrevating these problems...

Possible. Which manual are you referring to?
one that came with the USB card or some HP PARISC manual?

grant



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Jeremy Drake wrote:
> The LCD has a network, the HDD and an unfilled heart on the screen -- not 
> changing.

Not an HPMC then.

> The console says apt-get (668): unaligned access to 0x403ce08c it 
> ip=0x4005e4f7

That's odd - i've never seen that from apt-get.

> The TOC button had no effect.  Here's a ser pim from after I pulled the 
> power and restarted it.  It doesn't look particularly helpful.

Again I didn't look up the arcane stuff.
GR02 and IAOQ were both pointing at cpu_idle()
CR23 was zero; no external interrupts pending

grant



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On Tue, May 28, 2002 at 08:48:30PM -0400, John David Anglin wrote:
> > Hi,
> >   gdb has a problem in that it often doesn't stop the target program
> > when you do a 'step' or 'next'.  This is because it plants breakpoints,
> > but those breakpoints sit in the data cache and don't get flushed
> > through to be visible as code in time.  We need a flush_icache_page()
> > implementation to fix this; the following adds that and
> > flush_icache_range() also.  It does fix gdb for me on my a500.
> 
> Good find! I'll give it a try.  Can you now print function results?

You mean like

Breakpoint 1, main (argc=1, argv=0xbff00148) at ../simple.c:16
16              a = thing(1);
(gdb) print thing(7)

Program terminated with signal SIGSEGV, Segmentation fault.
The program no longer exists.
The program being debugged stopped while in a function called from GDB.
When the function (thing) is done executing, GDB will silently
stop (instead of continuing to evaluate the expression containing
the function call).
(gdb) 


thing(x) just returns x*2 in this case.  As you see it didn't work, 
and gave a protection id trap for the target program.  I'll investigate
further.


Richard





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Subject: Re: [parisc-linux] 2.4.18 SMP instability
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On Tue, 28 May 2002, Grant Grundler wrote:

> Jeremy Drake wrote:
> > Some things that occured to me about the hardware that may be influencing 
> > this.  The on-board USB on this box is broken (as in physically damaged).  
> 
> That's a good observation. Can you characterize how extensive is the
> physical damage?

The plastic thing that the pins sit on was missing from one of the 2 usb 
ports when the box arrived.  I, not having noticed this, plugged a 
keyboard into it.  It worked, but after playing with serial consoles and 
such it wouldn't go back.  The pins were bent because the reinforcing 
plastic was missing.  I tried to bend the pins so that they didn't short 
anything, and one broke off.  Both onboard USB ports haven't worked since.  
When booting, it said "initializing keyboard" and then "IODC error".  I 
put it on serial console and left it alone after that.
 
> > I don't recall anything on the previous console output that suggests
> the USB interface driver isn't happy.
> 
> > I have a pci usb card in there for typing on the graphics console, and 
> > when I installed it into the first slot recommended by the manual (2 I 
> > think) the box did some HPMC stuff when it tried to do selftests.  I moved 
> > it to slot 8 and everything seems happy with it.  Maybe something in the 
> > smp code is aggrevating these problems...
> 
> Possible. Which manual are you referring to?
> one that came with the USB card or some HP PARISC manual?

The J5000 owners manual, 
http://www.hp.com/workstations/support/documentation/manuals/user_guides/j_class/A5991-90000.pdf 
near the top of page 54 it says "For non-graphics cards, insert them in 
this order: Slot 2, then 8, 3, 5, and finally 6."

> 
> grant
> 

-- 
If a man has a strong faith he can indulge in the luxury of skepticism.
		-- Friedrich Nietzsche




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Richard Hirst wrote:
> This is because it plants breakpoints,
> but those breakpoints sit in the data cache and don't get flushed
> through to be visible as code in time. 

Richard,
Someone put code in arch/parisc/mm/init.c as per Alan Cox's suggestion
to trap excessive __init's. But it didn't flush dcache or icache.
Can you glob/rework the following patch with yours?

(I'm very guilty of being tired and not checking for compile errors
or warnings...way past my bedtime again...the code does compile
and link though)

thanks,
grant

Index: arch/parisc/mm/init.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/mm/init.c,v
retrieving revision 1.48
diff -u -p -r1.48 init.c
--- arch/parisc/mm/init.c	2002/04/15 23:49:12	1.48
+++ arch/parisc/mm/init.c	2002/05/29 06:14:16
@@ -381,10 +381,23 @@ void free_initmem(void)
 	printk(KERN_INFO "Freeing unused kernel memory: ");
 
 #if 1
-	cli();	/* disable all interrupts */
-	memset(&__init_begin, 0xff, 
+	/* Attempt to catch anyone trying to execute code here
+	 * by filling the page with BRK insns.
+	 * 
+	 * If we disable interrupts for all CPUs, then IPI stops working.
+	 * Kinda breaks the global cache flushing.
+	 */
+	local_irq_disable();
+
+	memset(&__init_begin, 0x00, 
 		(unsigned long)&__init_end - (unsigned long)&__init_begin);
-	sti();	/* re-enable all interrupts */
+
+	flush_data_cache();
+	asm volatile("sync" : : );
+	flush_icache_range(&__init_begin, &__init_end);
+	asm volatile("sync" : : );
+
+	local_irq_enable();
 #endif
 	
 	addr = (unsigned long)(&__init_begin);



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Jeremy Drake wrote:
> tried to bend the pins so that they didn't short 
> anything, and one broke off.  Both onboard USB ports haven't worked since.  

Ok. So broken physically but not eletrically.
Not sure that should cause any problems.
You run the risk now of being the only person using an add-on
USB card regularly for parisc.

> The J5000 owners manual, 
> http://www.hp.com/workstations/support/documentation/manuals/user_guides/j_cl
>   ass/A5991-90000.pdf 
> near the top of page 54 it says "For non-graphics cards, insert them in 
> this order: Slot 2, then 8, 3, 5, and finally 6."

ok. Not sure why they offer that advice...but whatever.

grant



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Subject: Re: [parisc-linux] kdb_v21 branch updated to -pa26, and kallsyms cross-compile
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On Tue, May 28, 2002 at 01:29:33PM -0400, Carlos O'Donell Jr. wrote:
> 
> > I can't get it to boot on my C110 - it gets stuck at the old familar "if this is
> > the last message you see" message. I can run the Debian 2.4.18 kernel OK on this
> > box.
> > Any ideas anyone?
> > patricki
> 
> What gcc version are you using to compile your kernel?

3.0.4, this is a Debian "woody" installaion.

> What kernel parameters have you appended?
Just the defaults added by PALO (which include console=ttyS0)

> What version of modutils are you using?
2.4.15 FWIW

> Send your .config?
Attached

> Serial console?

yes
 
> Helpful is the documentation can be found at:
> http://oss.sgi.com/projects/kdb/

I've used KDB before on intel machines (until I discovered kgdb!) I was hoping
to find a kdb patch for parisc on that site so I could apply it to a known,
working kernel but there only appears to be intel & sparc ones.

I've had a good play with this last night and it seems to be the kernel config
but I'm not sure why. I copied the .config from the working Debian kernel, did a
"make oldconfig" and built it but...

Anyway. I plugged in a monitor and keyboard so I could see what's really going
on and I can see that the kernel /does/ boot but it can't find the FW scsi
controller and therefore the root filesystem.

So the problem is that I seem to have have configged out the serial console and
the SCSI controller but I'm not sure how. It must be something stupid I've done
but I can't see it.

Honest, I've built Linux kernels for sparc, alpha, intel and mips before, but
this one's beaten me!

patrick


--wRRV7LY7NUeQGEoC
Content-Type: text/plain; charset=iso-8859-15
Content-Disposition: attachment; filename=pa-config

#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
CONFIG_MODULES=y
# CONFIG_MODVERSIONS is not set
CONFIG_KMOD=y

#
# Processor type
#
# CONFIG_PA7100 is not set
CONFIG_PA7200=y
# CONFIG_PA7100LC is not set
# CONFIG_PA8X00 is not set
CONFIG_PA11=y

#
# General options
#
# CONFIG_SMP is not set
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_KWDB is not set
CONFIG_IOMMU_CCIO=y
CONFIG_GSC=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_ISA=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_SUPERIO=y
# CONFIG_PCI_NAMES is not set

#
# General setup
#
CONFIG_HOTPLUG=y
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Parallel port support
#
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_PARPORT_PC_CML1=y
# CONFIG_PARPORT_SERIAL is not set
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_PC_PCMCIA is not set
# CONFIG_PARPORT_AMIGA is not set
# CONFIG_PARPORT_MFC3 is not set
# CONFIG_PARPORT_ATARI is not set
CONFIG_PARPORT_GSC=y
# CONFIG_PARPORT_SUNBPP is not set
# CONFIG_PARPORT_OTHER is not set
# CONFIG_PARPORT_1284 is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=6144
# CONFIG_BLK_DEV_INITRD is not set

#
# Multi-device support (RAID and LVM)
#
CONFIG_MD=y
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
CONFIG_BLK_DEV_LVM=m

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=y
CONFIG_NETFILTER=y
CONFIG_NETFILTER_DEBUG=y
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set

#
#   IP: Netfilter Configuration
#
CONFIG_IP_NF_CONNTRACK=m
CONFIG_IP_NF_FTP=m
# CONFIG_IP_NF_IRC is not set
# CONFIG_IP_NF_QUEUE is not set
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_LIMIT=m
CONFIG_IP_NF_MATCH_MAC=m
CONFIG_IP_NF_MATCH_MARK=m
CONFIG_IP_NF_MATCH_MULTIPORT=m
CONFIG_IP_NF_MATCH_TOS=m
# CONFIG_IP_NF_MATCH_AH_ESP is not set
# CONFIG_IP_NF_MATCH_LENGTH is not set
# CONFIG_IP_NF_MATCH_TTL is not set
CONFIG_IP_NF_MATCH_TCPMSS=m
CONFIG_IP_NF_MATCH_STATE=m
CONFIG_IP_NF_MATCH_UNCLEAN=m
CONFIG_IP_NF_MATCH_OWNER=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_MIRROR=m
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_REDIRECT=m
# CONFIG_IP_NF_NAT_SNMP_BASIC is not set
CONFIG_IP_NF_NAT_FTP=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_TOS=m
CONFIG_IP_NF_TARGET_MARK=m
CONFIG_IP_NF_TARGET_LOG=m
# CONFIG_IP_NF_TARGET_ULOG is not set
CONFIG_IP_NF_TARGET_TCPMSS=m
CONFIG_IP_NF_COMPAT_IPCHAINS=m
CONFIG_IP_NF_NAT_NEEDED=y
CONFIG_IP_NF_COMPAT_IPFWADM=m
CONFIG_IP_NF_NAT_NEEDED=y
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
CONFIG_DECNET=m
# CONFIG_DECNET_SIOCGIFCONF is not set
# CONFIG_DECNET_ROUTER is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# ATA/IDE/MFM/RLL support
#
# CONFIG_IDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=y
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
CONFIG_53C700_USE_CONSISTENT=y
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_NCR53C8XX is not set
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set

#
# PCMCIA SCSI adapter support
#
# CONFIG_SCSI_PCMCIA is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=y
# CONFIG_SUNLANCE is not set
CONFIG_HAPPYMEAL=m
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_NET_PCI is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
CONFIG_ACENIC=m
# CONFIG_ACENIC_OMIT_TIGON_I is not set
# CONFIG_DL2K is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
CONFIG_HAMACHI=m
CONFIG_YELLOWFIN=m
CONFIG_SK98LIN=m
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# PCMCIA network device support
#
# CONFIG_NET_PCMCIA is not set

#
# Input core support
#
# CONFIG_INPUT is not set
# CONFIG_INPUT_KEYBDEV is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_HIL=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=y
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_PC110_PAD is not set

#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# PCMCIA character devices
#
# CONFIG_PCMCIA_SERIAL_CS is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
CONFIG_AUTOFS4_FS=y
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
CONFIG_EXT3_FS=y
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
CONFIG_TMPFS=y
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_INTERMEZZO_FS is not set
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_ROOT_NFS is not set
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
# CONFIG_ZISOFS_FS is not set
# CONFIG_ZLIB_FS_INFLATE is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
CONFIG_NLS=y

#
# Native Language Support
#
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set

#
# Console drivers
#

#
# Frame-buffer support
#
# CONFIG_FB is not set
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y

#
# Sound
#
CONFIG_SOUND=y
# CONFIG_SOUND_BT878 is not set
# CONFIG_SOUND_CMPCI is not set
# CONFIG_SOUND_EMU10K1 is not set
# CONFIG_MIDI_EMU10K1 is not set
# CONFIG_SOUND_FUSION is not set
# CONFIG_SOUND_CS4281 is not set
# CONFIG_SOUND_ES1370 is not set
# CONFIG_SOUND_ES1371 is not set
# CONFIG_SOUND_ESSSOLO1 is not set
# CONFIG_SOUND_MAESTRO is not set
# CONFIG_SOUND_MAESTRO3 is not set
# CONFIG_SOUND_ICH is not set
CONFIG_SOUND_HARMONY=y
# CONFIG_SOUND_RME96XX is not set
# CONFIG_SOUND_SONICVIBES is not set
# CONFIG_SOUND_TRIDENT is not set
# CONFIG_SOUND_MSNDCLAS is not set
# CONFIG_SOUND_MSNDPIN is not set
# CONFIG_SOUND_VIA82CXXX is not set
# CONFIG_MIDI_VIA82CXXX is not set
# CONFIG_SOUND_OSS is not set
# CONFIG_SOUND_TVMIXER is not set

#
# USB support
#
CONFIG_USB=m
# CONFIG_USB_DEBUG is not set
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_BANDWIDTH is not set
# CONFIG_USB_LONG_TIMEOUT is not set
# CONFIG_USB_UHCI is not set
# CONFIG_USB_UHCI_ALT is not set
CONFIG_USB_OHCI=m
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_BLUETOOTH is not set
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_HP8200e is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_DC2XX is not set
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_SCANNER is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_HPUSBSCSI is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_CATC is not set
# CONFIG_USB_CDCETHER is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_USS720 is not set

#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_EMPEG is not set
# CONFIG_USB_SERIAL_FTDI_SIO is not set
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IPAQ is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XA is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XB is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_PL2303 is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OMNINET is not set
# CONFIG_USB_RIO500 is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y
CONFIG_KDB=y
CONFIG_KDB_MODULES=y
CONFIG_KDB_OFF=y
CONFIG_KALLSYMS=y

--wRRV7LY7NUeQGEoC--



From - Thu Nov 08 21:22:50 2018
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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.18-pa29 problem
Date: Wed, 29 May 2002 10:18:29 +0200
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Cc: parisc-linux@lists.parisc-linux.org
To: Jeremy Drake <jeremyd@apptechsys.com>
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Wed May 29 02:18:47 2002
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Le mercredi 29 mai 2002, =E0 03:32 , Jeremy Drake a =E9crit :

> I don't know if this is related to my other problems or not, but when
> booting an SMP 2.4.18-pa29 kernel from CVS, the box stops after=20
> displaying
> "Freeing Unused Kernel Memory".  The box is still semi-responsive, in=20=

> that
> stuff sent to the serial  console is echoed back, and the power button
> makes it say "shutting down" but nothing happens beyond that.
>
This is quite weird, because we have such a problem here:

With kernels 2.4.18-pa23 and above, it happens that some times the box=20=

won't reboot after a normal shutdown, or even a crash.
It stops at the same point ("Freeing Unused Kernel Memory"), and we also=20=

have the "shutdown requested" echo when pushing the button, but nothing=20=

happens.

A complete shutdown and reboot won't change a thing.

What is very weird, is that the same boxes boot fine with the original=20=

2.4.9-32 and fsck doesn't show anything bad.
We also had the case of a box that won't reboot with 2.4.18-pa23, but=20
when we tried the day after, it booted fine !
We also discovered that adding a init=3D/bin/sh param to the linux =
kernel=20
did the trick and let the machine boot.

We suspect an INIT problem.

Hope this might help.



Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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> We also discovered that adding a init=/bin/sh param to the linux kernel 
> did the trick and let the machine boot.
> 
> We suspect an INIT problem.
> 
> Hope this might help.
> 

When we did LTSP for sparc it was based it off the woody binaries, we
had the same problem and yes could also do init=/bin/bash. We ended up
using init from slackware resulting in a slightly bastardised but
working distribution.

Robert Stanford



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From: medbrkthrgh77562818@yahoo.com
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Subject: [parisc-linux] Medical Breakthrough... aging can be reversed with HGH
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Hi,
  Tried turning on EARLY_BOOTUP_DEBUG in a 'standard' kernel config and
booting the resulting kernel on a B180, using sti console.  Kernel
parameters were init=/bin/sh and console=tty0.  Console output stopped
after "freeing init memory".  System wasn't hung, however, but /bin/sh
was actually talking to ttyS0.

The reason is as follows; I now have three things calling
register_console() - pdc console (ttyB0), vt (tty0), and serial console
(ttyS0).  I have specified console=tty0, so kernel/printk.c will process
that and set preferred_console=0; register_console(ttyB0) is called
next, then register_console(tty0) is called.  At this point
register_console() notes that ttyB0 was a boot console, and calls
unregister_console(ttyB0), which sets preferred_console=-1.  Finally
register_console(ttyS0) is called, which sees preferred_console=-1,
thinks this is the first register_console() call, and sets ttyS0 as the
console device.

One fix is below; it doesn't make sense to unset preferred_console if
console= was specified on the command line.

After this this fix things seem ok booting with console=tty0 or ttyS0.
I then turned on PDC_CONSOLE, and can still boot with console=tty0 or
ttyS0, so if may now be safe to have pdc console enabled by default.

Trying to boot with console=ttyB0 (using graphical console) was
interesting; console output works, although stifb messed with the
colours, so I have dark blue text on a black background.  Console input
didn't work though, I guess because the kernel keyboard driver was
grabbing keyboard interrupts.  However, if this was a system where pdc
console was needed, because linux couldn't drive graphics or keyboard
directly, it might have worked fine.

Thibaut, perhaps you can build kernels with this patch, then
boot-floppies and an ISO, for Robbie to do a test install on his
K-class?

Cheers,
  Richard


Index: kernel/printk.c
===================================================================
RCS file: /var/cvs/linux/kernel/printk.c,v
retrieving revision 1.17
diff -u -r1.17 printk.c
--- kernel/printk.c	2002/02/26 00:45:45	1.17
+++ kernel/printk.c	2002/05/29 09:47:59
@@ -668,7 +668,7 @@
 	 * one that gets registered. Without that, pmac early boot console
 	 * would prevent fbcon from taking over.
 	 */
-	if (console_drivers == NULL)
+	if (console_drivers == NULL && !console_cmdline[0].name[0])
 		preferred_console = -1;
 		
 




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> > Send your .config?
> Attached

Here's your problem:
...
CONFIG_KDB_OFF=y
...

Either set that to 'CONFIG_KDB_OFF=n'
or boot with 'kdb=on' as a kernel paramter.
(Checkout the help text in the kernel hacking option).

Some of this stuff changed in the latest kdb version.

I'm not sure why the kernel can't find the FW scsi controller.
That will be problem number two :)

c.



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Hey, I just installed the newest version of Debian PA Linux off
the ISO CD, and everything went fine, I was able to install gcc, etc,
etc. but now I need to install a Java compiler and runtime environment
and more importantly a ssh client. I do not have network connectivity
yet, and I cannot find these packages using the 'apt-cache search'
command.

Thanks in advance for helping!
-Marc



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> You mean like
> 
> Breakpoint 1, main (argc=1, argv=0xbff00148) at ../simple.c:16
> 16              a = thing(1);
> (gdb) print thing(7)

Yes.  I find this an extremely useful feature in debugging gcc.  It
has various hooks to print rtl and tree structs that I miss not being
able to use.

> thing(x) just returns x*2 in this case.  As you see it didn't work, 
> and gave a protection id trap for the target program.  I'll investigate
> further.

Great.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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On Wed, May 29, 2002 at 08:21:07AM -0400, Carlos O'Donell Jr. wrote:
> > > Send your .config?
> > Attached
> 
> Here's your problem:
> ...
> CONFIG_KDB_OFF=y
> ...

That's only set like that as a last-dich attempt to get it to work :-(

I'm going to have to give up on this, I can't spend all week trying to get it to
work. What I don't understand is that I move a working .config to the new kernel
source and both the serial console AND the scsi stop working.

Ah well, it was a nice idea while it lasted. It's just a bit hard debugging code
when the only error you get is "Stack pointer and cr30 do not cor
respond" repeated endlessly....

patrick




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Hi all,

I just cvs update kernel 2.1.18-pa28 yesterday and would like to update to last
2.4.18-pa29 but today each time 'Connection reset by peer'. Am I alone to have
this problem? (other cvs update with sourceforge, gnu, redhat do not present
this problem but it is also possible to be an isp problem)

Thanks in advance for help,
    Joel


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From: Thomas Marteau <marteaut@tuxfamily.org>
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Hi all,

	Thanks to Joel, I have to correct the last message:
> export CVSROOT=:pserver:marteaut@cvs.tuxfamily.org:/cvsroot/hppa

is in fact:
export CVSROOT=:pserver:anonymous@cvs.tuxfamily.org:/cvsroot/hppa

I should not paste my .bash_history :)

Thomas.




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> 
> That's only set like that as a last-dich attempt to get it to work :-(
> 
> I'm going to have to give up on this, I can't spend all week trying to get it to
> work. What I don't understand is that I move a working .config to the new kernel
> source and both the serial console AND the scsi stop working.
> 
> Ah well, it was a nice idea while it lasted. It's just a bit hard debugging code
> when the only error you get is "Stack pointer and cr30 do not cor
> respond" repeated endlessly....
> 
> patrick
>

You can't always copy a .config from kernel to kernel. The kernel source
dictates what will be _in_ the .config. I usually run 'make mrproper'
and then have 'make oldconfig' or 'make ???config' recreate the config files
to suit the material in the kernel.

When switching to a new source tree I recommend:
make mrproper
make oldconfig
make menuconfig (to suit your tastes)
...


As for the endless 'Stack pointer and cr30 do not correspond!'....

I believe that is a bug in traps.c and I have code to give a proper dump.
I haven't been able to get anyone who knows to explain how the dump_stack in 
traps should _really_ work :)

AFAI understand the following works (I've tested it on my kernels with what 
looks to be a successfull dump while doing some bad things (props to Bame
for helping me out) ;)

BTW, what led me to this solution is that the printk in the else is
completely bogus... so I rewrote the else.

Q: When do you get 'Stack pointer and cr30 do not correspond'?

==========
--- ./linux/arch/parisc/kernel/traps.c     Tue May 21 00:01:37 2002
+++ ./linux/arch/parisc/kernel/traps.c     Tue May 21 00:30:42 2002
@@ -189,10 +189,25 @@
                }
                else
                {
-                   /* Stack Dump! */
-                   printk(KERN_CRIT "WARNING! Stack pointer and cr30 do not correspond!\n");
-                   printk(KERN_CRIT "Dumping virtual address stack instead\n");
-                   dump_stack((unsigned long)__va(stack_start), (unsigned long)__va(sp), 0);
+
+                   stack_start = sp & ~(INIT_TASK_SIZE - 1);
+                   if (stack_start == cr30) {
+
+                       /* We're in a non-interrupt stack and cr30 matches
+                          the start of the stack */
+
+                       dump_stack(stack_start, sp, 0);
+
+                   }
+                   else
+                   {
+
+                       /* Stack Dump! */
+                       printk(KERN_CRIT "WARNING! Stack pointer and cr30 do not correspond!\n");
+                       printk(KERN_CRIT "Dumping virtual address stack instead\n");
+                       dump_stack((unsigned long)__va(stack_start), (unsigned long)__va(sp), 0);
+
+                   }
                }
        }
 #endif
========== 



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On Wed, May 29, 2002 at 04:46:20PM +0200, joel.soete@freebel.net wrote:
> Hi all,
> 
> I just cvs update kernel 2.1.18-pa28 yesterday and would like to update to last
> 2.4.18-pa29 but today each time 'Connection reset by peer'. Am I alone to have
> this problem? (other cvs update with sourceforge, gnu, redhat do not present
> this problem but it is also possible to be an isp problem)

working for me.  (ssh access, not pserver access).

-- 
Revolutions do not require corporate support.



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Check for OpenSSH, I'm pretty sure it's part of the compiled 
packages.  As for Java, I'm pretty sure there is no pre-compiled form 
for HPPA, but you can try to compile it, or try Kaffe
Aaron
>
>and more importantly a ssh client. I do not have network connectivity


-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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>Check for OpenSSH, I'm pretty sure it's part of the compiled 
>packages.  As for Java, I'm pretty sure there is no pre-compiled form 
>for HPPA, but you can try to compile it, or try Kaffe
>Aaron

`apt-cache search ssh` returns nothing.

Any other ideas?



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On Wed, May 29, 2002 at 11:04:58AM -0500, marc  wrote:
> 
> >Check for OpenSSH, I'm pretty sure it's part of the compiled 
> >packages.  As for Java, I'm pretty sure there is no pre-compiled form 
> >for HPPA, but you can try to compile it, or try Kaffe
> >Aaron
> 
> `apt-cache search ssh` returns nothing.
> 
> Any other ideas?

try an apt-get update first?

-- 
Revolutions do not require corporate support.



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Quoting Matthew Wilcox <willy@debian.org>:

> On Wed, May 29, 2002 at 04:46:20PM +0200, joel.soete@freebel.net wrote:
> > Hi all,
> > 
> > I just cvs update kernel 2.1.18-pa28 yesterday and would like to
> update to last
> > 2.4.18-pa29 but today each time 'Connection reset by peer'. Am I alone
> to have
> > this problem? (other cvs update with sourceforge, gnu, redhat do not
> present
> > this problem but it is also possible to be an isp problem)
> 
> working for me.  (ssh access, not pserver access).

Humm but I can only join pserver as anonymous user afaik?

> 
> -- 
> Revolutions do not require corporate support.
> 
> 


-------------------------------------------------
This mail sent through Tiscali Webmail (http://webmail.tiscali.be)



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On Wed, 29 May 2002, Matthew Wilcox wrote:

> On Wed, May 29, 2002 at 11:04:58AM -0500, marc  wrote:
> >
> > >Check for OpenSSH, I'm pretty sure it's part of the compiled
> > >packages.  As for Java, I'm pretty sure there is no pre-compiled form
> > >for HPPA, but you can try to compile it, or try Kaffe
> > >Aaron
> >
> > `apt-cache search ssh` returns nothing.
> >
> > Any other ideas?
>
> try an apt-get update first?
ssh is in non-US isn't it? If there is no line like

deb ftp://ftp.de.debian.org/debian-non-US unstable/non-US main
(change for your favourite server, protocol, etc.)

in /etc/apt/sources.list, that won't do anything.

ad




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On Wed, May 29, 2002 at 11:01:18AM -0400, Carlos O'Donell Jr. wrote:
> >
> 
> You can't always copy a .config from kernel to kernel. The kernel source
> dictates what will be _in_ the .config. I usually run 'make mrproper'
> and then have 'make oldconfig' or 'make ???config' recreate the config files
> to suit the material in the kernel.
> 
> When switching to a new source tree I recommend:
> make mrproper
> make oldconfig
> make menuconfig (to suit your tastes)

Oh, I'm doing that. I just tried it again, it was either that or throw it out
of the window.

Is there parisc version of the kdb patch I could try applying to a kernel
source I know works maybe ?

> As for the endless 'Stack pointer and cr30 do not correspond!'....
> 
> I believe that is a bug in traps.c and I have code to give a proper dump.
> I haven't been able to get anyone who knows to explain how the dump_stack in 
> traps should _really_ work :)

Thanks, I'll try that out.
 
> AFAI understand the following works (I've tested it on my kernels with what 
> looks to be a successfull dump while doing some bad things (props to Bame
> for helping me out) ;)
> 
> BTW, what led me to this solution is that the printk in the else is
> completely bogus... so I rewrote the else.
> 
> Q: When do you get 'Stack pointer and cr30 do not correspond'?

When it hits my buggy code :-) 

patrick




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On Wed, 29 May 2002, Andreas Deresch wrote:

> On Wed, 29 May 2002, Matthew Wilcox wrote:
>
> > On Wed, May 29, 2002 at 11:04:58AM -0500, marc  wrote:
> > >
> > > >Check for OpenSSH, I'm pretty sure it's part of the compiled
> > > >packages.  As for Java, I'm pretty sure there is no pre-compiled form
> > > >for HPPA, but you can try to compile it, or try Kaffe
> > > >Aaron
> > >
> > > `apt-cache search ssh` returns nothing.
> > >
> > > Any other ideas?
> >
> > try an apt-get update first?
> ssh is in non-US isn't it? If there is no line like
>
> deb ftp://ftp.de.debian.org/debian-non-US unstable/non-US main
> (change for your favourite server, protocol, etc.)
>
> in /etc/apt/sources.list, that won't do anything.
O.k., correction - at the moment it is in non-US/main for stable, in main
for testing and unstable.

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The problem is per my original post that I do not have network
yet, I just needed the Java and SSH stuff to do some work,
but I guess I will wait until I get things up and running.

Thanks,
-Marc

---------- Original Message ----------------------------------
From: Andreas Deresch <aderesch@fs.tum.de>
Reply-To: Andreas Deresch <aderesch@fs.tum.de>
Date:  Wed, 29 May 2002 18:16:17 +0200 (CEST)

>On Wed, 29 May 2002, Matthew Wilcox wrote:
>
>> On Wed, May 29, 2002 at 11:04:58AM -0500, marc  wrote:
>> >
>> > >Check for OpenSSH, I'm pretty sure it's part of the compiled
>> > >packages.  As for Java, I'm pretty sure there is no pre-compiled form
>> > >for HPPA, but you can try to compile it, or try Kaffe
>> > >Aaron
>> >
>> > `apt-cache search ssh` returns nothing.
>> >
>> > Any other ideas?
>>
>> try an apt-get update first?
>ssh is in non-US isn't it? If there is no line like
>
>deb ftp://ftp.de.debian.org/debian-non-US unstable/non-US main
>(change for your favourite server, protocol, etc.)
>
>in /etc/apt/sources.list, that won't do anything.
>
>ad
>
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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On Wed, 29 May 2002, marc  wrote:

> The problem is per my original post that I do not have network
> yet, I just needed the Java and SSH stuff to do some work,
> but I guess I will wait until I get things up and running.
If you have network access somewhere else, you can still download the
package there and carry it home. apt-zip is a tool for automating that (get
the package lists, update your local cache, choose packages, then run
apt-zip-list, use the produced script to download the packages somewhere
else, then run apt-zip-inst back home).

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Subject: Re: [parisc-linux] kdb_v21 branch updated to -pa26, and kallsyms cross-compile
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> 
> Oh, I'm doing that. I just tried it again, it was either that or throw it out
> of the window.
> 
> Is there parisc version of the kdb patch I could try applying to a kernel
> source I know works maybe ?
>

We are trying not to maintian patches but rather a branch of the
kernel representing common-2 + parisc specific kdb changes.

Look at this if you want to see the patch method:
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016246.html

The kdb_v21 branch is where all the changes and fixes will go :)

c. 



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On Wed, May 29, 2002 at 01:26:31PM -0400, Carlos O'Donell Jr. wrote:
> > 
> > Oh, I'm doing that. I just tried it again, it was either that or throw it out
> > of the window.
> > 
> > Is there parisc version of the kdb patch I could try applying to a kernel
> > source I know works maybe ?
> >
> 
> We are trying not to maintian patches but rather a branch of the
> kernel representing common-2 + parisc specific kdb changes.

I can understand the logic of that and if it worked for me I would regard it as
the best solution to the problem if maintaing two sets of patches.
 
> Look at this if you want to see the patch method:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016246.html

Thanks, I'll try that on my Debian kernel and see what happens. Despite my
frustrations I really do want to get kdb working on this box. I like my HP box a
lot and I've got some kernel code that really does need fixing for that
platform.

+ we have a long weekend off coming up here in Britain and it's the perfect
diversion for that essay I really have to write ... :-)
 
patrick




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OK, I just tried pa30.  It boots successfully, but just died doing apt-get 
update:
Fetched 554B in 10s (53B/s)
apt-get(320): unaligned access to 0x403ce094 at ip=0x4005e47f
Reading Package

And there it stopped.  I don't know what it's doing but I'll see what kind 
of info I can get from it.

These "unaligned access" messages only show up when running smp.  apt-get 
works perfectly with a UP kernel...

I should set up a webcam pointing at the LCD screen of that box, so I can 
look at it remotely, to know if it HPMC'd or just locked up...

-- 
He missed an invaluable opportunity to hold his tongue.
		-- Andrew Lang




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"marc " wrote:
> `apt-cache search ssh` returns nothing.
> Any other ideas?

verify you have non-us in your /etc/apt/sources.list.
Something like:
deb http://non-us.debian.org/debian-non-US unstable/non-US main contrib non-free


grundler <515>dpkg -l ssh
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  ssh            3.0.2p1-9      Secure rlogin/rsh/rcp replacement (OpenSSH)


grant



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Hi folks,

Just picked up a free 735/99 today, so suddenly I've become interested
in the status of the Outfield 53c720 driver. Has there been any progress
or is there just no information available? I'd be happy to test patches -
or even dive into the code myself, but without docs that sounds a little
pointless.

The box came with a FWD SCSI cage, and although I can scrounge a SE cage
to go in there, I'd like to make good use of these Seagate ST32430WD's
I've got laying around.

Nice things about this deal - it came with an Intel 10/100 network
card in the EISA slot, it came with a big HP drive cabinett with two
serviceabele 5GB Hawks in (and a possibly working full-height DAT
unit). It has 176MB of memory and still 2 banks free - and I can
scrounge memory to fill those banks. Pity it had an A1097C monitor -
I was crossing my fingers for another A4033A, but beggars can't be
choosers.

By the way, if I can get my hands on a 735/125 cpu/memory board, will
my /99 become a /125, or is there more to it than that?

cheers,
-Andy


------------------------------------------------------------
F din egen @start.no-adresse gratis p http://www.start.no/



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Using the 2.4.18-pa26 kernel on my A400-6X, the machine doesn't want to 
stay alive for more than about a day. The console log shows this:

~~~
Kernel panic: sba_iommu.c: I/O MMU @ fffffffffed22000 is out of mapping 
resources

 <6>sym53c896-3-<15,0>: extraneous data discarded.
sym53c896-3-<15,0>: COMMAND FAILED (89 0) @0000000016c95800.
Kernel panic: sba_iommu.c: I/O MMU @ fffffffffed22000 is out of mapping 
resources

In interrupt handler - not syncing
~~~

    Does anyone know what might be causing this?

    tia,
    Duraid





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Andy Walker wrote:
> By the way, if I can get my hands on a 735/125 cpu/memory board, will
> my /99 become a /125, or is there more to it than that?

I think so. I know someone here in Cupertino that stockpiles
735/125 boards for that purpose. I know particular revs of
firmware are required to run 125Mhz but don't know details.

Also note that the firmare is only *chip* upgradeable.
ie, scavenge newer firmware chips from dead boxes if you can.

grant



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Duraid Madina wrote:
>  <6>sym53c896-3-<15,0>: extraneous data discarded.
> sym53c896-3-<15,0>: COMMAND FAILED (89 0) @0000000016c95800.
> Kernel panic: sba_iommu.c: I/O MMU @ fffffffffed22000 is out of mapping 
> resources

That's my code.

It's possible the sym53c896 driver isn't releasing mapping resources
in the above error path.

Under workload, can you
1) run the following shell script:
	while :
	do
		date >> ~/Astro.out
		cat /proc/bus/runway/Astro | fgrep PDIR >> ~/Astro.out
		sleep 10
	done

2) provide matching /var/log/syslog for the same timeframe.
3) explain briefly what the workload is.

The idea here is to monitor PDIR resource over time as whatever workload
you are running exercises the system. In the meantime, I'll look
at sym53c8xx driver and see if it's obviously not releasing the
mapping resource.

grant



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I got ssh up and running. Also, why does it bomb when I uncomment the line in my sources.list that has to do with the security updates?? I have network
connectivity now, and heres what I get for the
java possibilities:

seki:/etc/apt# more sources.list

deb cdrom:[Debian GNU/Linux 3.0 prerelease _Woody_ - Unofficial hppa Binary-1 (2
0011205)]/ unstable contrib main
deb http://non-us.debian.org/debian-non-US unstable non-US/main non-US/contrib n
on-US/non-free
deb http://http.us.debian.org/debian/ unstable main non-free contrib
deb-src http://http.us.debian.org/debian/ unstable main non-free contrib
# deb http://security.debian.org/ unstable updates/main updates/contrib updates/
non-free





seki:/etc/apt# apt-get install jikes
Reading Package Lists... Done
Building Dependency Tree... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.

Since you only requested a single operation it is extremely likely that
the package is simply not installable and a bug report against
that package should be filed.
The following information may help to resolve the situation:

Sorry, but the following packages have unmet dependencies:
  jikes: Depends: java-virtual-machine but it is not installable
E: Sorry, broken packages
seki:/etc/apt# apt-get install kaffe
Reading Package Lists... Done
Building Dependency Tree... Done
Package kaffe has no available version, but exists in the database.
This typically means that the package was mentioned in a dependency and
never uploaded, has been obsoleted or is not available with the contents
of sources.list
E: Package kaffe has no installation candidate



---------- Original Message ----------------------------------
From: Grant Grundler <grundler@dsl2.external.hp.com>
Date:  Wed, 29 May 2002 14:13:34 -0600

>"marc " wrote:
>> `apt-cache search ssh` returns nothing.
>> Any other ideas?
>
>verify you have non-us in your /etc/apt/sources.list.
>Something like:
>deb http://non-us.debian.org/debian-non-US unstable/non-US main contrib non-free
>
>
>grundler <515>dpkg -l ssh
>Desired=Unknown/Install/Remove/Purge/Hold
>| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
>|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
>||/ Name           Version        Description
>+++-==============-==============-============================================
>ii  ssh            3.0.2p1-9      Secure rlogin/rsh/rcp replacement (OpenSSH)
>
>
>grant
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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I made the crude kernel profiler work and here's a trace from a b180
compiling the kernel sorted by #tics.  'man readprofile' to figure out
column 3.  I'll commit this stuff soon.  Enjoy!

 22214 total                                      0.0125
  4816 flush_user_icache_range_asm              133.7778
  4641 flush_user_dcache_range_asm              128.9167
  2672 clear_user_page_asm                       23.8571
   712 $lctu_done                                44.5000
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   542 handle_interruption                        0.4208
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   366 purge_kernel_dcache_page                   3.6600
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   194 fimanyloop                                 9.7000
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   173 zap_page_range                             0.1975
   131 __free_pages_ok                            0.1227
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   109 intr_restore                               0.2412
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    94 memcpy                                     2.6111
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    53 do_generic_file_read                       0.0418
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    49 update_mmu_cache                           0.3500
    43 do_brk                                     0.0741
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    33 __up_read                                  0.3750
    31 parisc_acctyp                              0.1490
    29 sys_brk                                    0.0993
    29 permission                                 0.3625
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     9 vma_merge                                  0.0288
     9 syscall_check_bh                           0.5625
     9 filldir64                                  0.0262
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     9 ext2_release_file                          0.2250
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     6 count                                      0.0600
     6 __wake_up                                  0.0214
     5 vsnprintf                                  0.0023
     5 syscall_check_sig                          0.4167
     5 sys_newfstat                               0.0338
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     5 rb_insert_color                            0.0167
     5 path_walk                                  0.1562
     5 net_rx_action                              0.0062
     5 lstrncpy_from_user                         0.1389
     5 load_elf_interp                            0.0069
     5 get_unmapped_area                          0.0312
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     5 file_read_actor                            0.0391
     5 do_mmap2                                   0.0236
     5 __block_prepare_write                      0.0056
     5 $$remU                                     0.0169
     4 sys_write                                  0.0114
     4 sys_rt_sigprocmask                         0.0108
     4 sys_mmap                                   0.0667
     4 scsi_dispatch_cmd                          0.0041
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     4 number                                     0.0036
     4 n_tty_receive_buf                          0.0014
     4 meminfo_read_proc                          0.0052
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     4 ip_route_input                             0.0085
     4 ext2_new_block                             0.0014
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     4 can_share_swap_page                        0.0238
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     3 syscall_restore_rfi                        0.1071
     3 syscall_check_resched                      0.3750
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     3 sys_getdents64                             0.0160
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     3 $lsfu_exit                                 0.1875
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     2 tcp_poll                                   0.0052
     2 tcp_clean_rtx_queue                        0.0024
     2 sys_stat64                                 0.0125
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     2 ext2_update_inode                          0.0016
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     2 ext2_get_block                             0.0016
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     2 do_sigaction                               0.0068
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     2 discard_bh_page                            0.0098
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     2 build_mmap_rb                              0.0161
     2 block_read_full_page                       0.0026
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     2 __rb_rotate_right                          0.0250
     2 __rb_erase_color                           0.0044
     2 __pollwait                                 0.0089
     2 $$remI                                     0.0061
     2 $$divU                                     0.0069
     2 $$divI                                     0.0061
     1 write_chan                                 0.0016
     1 wrapper_exit                               0.0109
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     1 vfs_readdir                                0.0032
     1 unmap_fixup                                0.0021
     1 unlock_vma_mappings                        0.2500
     1 udp_rcv                                    0.0013
     1 tty_write                                  0.0015
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     1 tcp_sendmsg                                0.0002
     1 tcp_ack                                    0.0012
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     1 syscall_do_resched                         0.0625
     1 sys_wait4                                  0.0010
     1 sys_ioctl                                  0.0017
     1 sys_fstat64                                0.0068
     1 sys_dup2                                   0.0032
     1 strncpy                                    0.0312
     1 skb_clone                                  0.0022
     1 sk_run_filter                              0.0004
     1 si_meminfo                                 0.0132
     1 setup_sigcontext                           0.0022
     1 setup_arg_pages                            0.0018
     1 set_binfmt                                 0.0081
     1 set_bh_page                                0.0100
     1 select_bits_free                           0.0417
     1 search_binary_handler                      0.0025
     1 scsi_request_fn                            0.0012
     1 scsi_malloc                                0.0046
     1 refill_inactive                            0.0021
     1 real_lookup                                0.0028
     1 rb_erase                                   0.0033
     1 pty_write_room                             0.0156
     1 pipe_wait                                  0.0040
     1 pipe_release                               0.0042
     1 packet_rcv                                 0.0013
     1 nr_free_buffer_pages                       0.0139
     1 normal_poll                                0.0027
     1 mmput                                      0.0061
     1 mm_release                                 0.0192
     1 lstrnlen_user                              0.0278
     1 lookup_create                              0.0054
     1 locate_fd                                  0.0030
     1 lcopy_from_user                            0.0357
     1 kstat_read_proc                            0.0014
     1 iput                                       0.0016
     1 ip_rcv                                     0.0009
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     1 insert_vm_struct                           0.0050
     1 inode_has_buffers                          0.0227
     1 inode_change_ok                            0.0021
     1 inet_recvmsg                               0.0100
     1 in_egroup_p                                0.0192
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     1 get_unused_buffer_head                     0.0056
     1 get_tty_driver                             0.0104
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     1 flush_signal_handlers                      0.0192
     1 flush_kernel_icache_range_asm              0.0147
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     1 flush_cache_all_local                      0.0357
     1 find_inode                                 0.0058
     1 fdtdone                                    0.0156
     1 ext2_prepare_write                         0.0208
     1 ext2_lookup                                0.0081
     1 ext2_get_page                              0.0074
     1 ext2_free_branches                         0.0023
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     1 ext2_alloc_block                           0.0060
     1 do_sigaltstack                             0.0028
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     1 discard_buffer                             0.0034
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     1 add_wait_queue                             0.0208
     1 add_timer                                  0.0038
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     1 _switch_to                                 0.0093
     1 __vma_link                                 0.0046
     1 __remove_from_lru_list                     0.0078
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     1 __block_commit_write                       0.0027
     1 $lslen_nzero                               0.0625
     1 $$mulU                                     0.0019



From - Thu Nov 08 21:22:53 2018
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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Java and SSH
Date: Thu, 30 May 2002 09:01:49 +0100
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To: marc <marc@centraltx.com>
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On Thu, May 30, 2002 at 12:23:49AM -0500, marc  wrote:
> I got ssh up and running. Also, why does it bomb when I uncomment the line in my sources.list that has to do with the security updates?? I have network
> connectivity now, and heres what I get for the
> java possibilities:
> 
> seki:/etc/apt# more sources.list
> 
> deb cdrom:[Debian GNU/Linux 3.0 prerelease _Woody_ - Unofficial hppa Binary-1 (2
> 0011205)]/ unstable contrib main
> deb http://non-us.debian.org/debian-non-US unstable non-US/main non-US/contrib n
> on-US/non-free
> deb http://http.us.debian.org/debian/ unstable main non-free contrib
> deb-src http://http.us.debian.org/debian/ unstable main non-free contrib
> # deb http://security.debian.org/ unstable updates/main updates/contrib updates/
> non-free

Security updates only exist for stable releases, and don't exist for
woody yet as it isn't quite released.    Someone correct me if that's
not quite accurate.

Richard




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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Fast-Wide Diff. SCSI on a 735
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On Wed, May 29, 2002 at 11:20:16PM +0200, Andy Walker wrote:
> Hi folks,
> 
> Just picked up a free 735/99 today, so suddenly I've become interested
> in the status of the Outfield 53c720 driver. Has there been any progress
> or is there just no information available? I'd be happy to test patches -
> or even dive into the code myself, but without docs that sounds a little
> pointless.

Specs for Outfield are available now, look for hardball_ers.pdf on the
web site.

Other 53c720 interfaces (e.g. bluefish) are supported via the
ncr53c8xx.c driver, but that doesn't work for outfield because the 735
is not cache coherent.  My next idea was to add basic 53c720 support to
the 53c700 driver, as that works older hardware.  Ryan was interested in
looking at that a while back, but I don't know what happened.  My excuse
is that I don't have 735 h/w to test on so it is no fun - but that's a
poor excuse really as I could use my bluefish card to get 53c700 working
with 53c720.

53c700.c would drive the 53c720 chip in 53c700 mode, so would be
relatively low performance (more interrupts than you would need if you
made the most of the 53c720 features), and it would be 8 bit only.
Those issues could perhaps be fixed in time, and it would be better than
nothing, anyway.

Richard




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Subject: Re: [parisc-linux] Fast-Wide Diff. SCSI on a 735
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Quoting Richard Hirst <rhirst@linuxcare.com>:
> 
> Specs for Outfield are available now, look for hardball_ers.pdf on the
> web site.

Actually I saw that - so I'll print 'em out and start digesting the info
this evening. Haven't hacked on a SCSI driver since the earliest 1.1.x
BusLogic days, but I can at least try to understand what's going on.

> Other 53c720 interfaces (e.g. bluefish) are supported via the
> ncr53c8xx.c driver, but that doesn't work for outfield because the 735
> is not cache coherent.

If you remember Richard, I was having all sorts of trouble with a Bluefish
card in a 725/100 a while back. Think I got the same results in a C110 too.
Recognized as Zalon, but hung up with SCSI timeouts if there was a disk
attached. HP-UX booted happily off the same controller & disk.

> My next idea was to add basic 53c720 support to the 53c700 driver, as
> that works older hardware.  Ryan was interested in looking at that a while
> back, but I don't know what happened.  My excuse is that I don't have 735
> h/w to test on so it is no fun - but that's a poor excuse really as I could
> use my bluefish card to get 53c700 working with 53c720.
> 
> 53c700.c would drive the 53c720 chip in 53c700 mode, so would be
> relatively low performance (more interrupts than you would need if you
> made the most of the 53c720 features), and it would be 8 bit only.
> Those issues could perhaps be fixed in time, and it would be better
> than nothing, anyway.
> 
> Richard

Well, I've got a 735, a Bluefish card, a B132L with Zalon onboard, and no
current hacking project at home. Unfortunately I also have a wife, two kids
and a reasonable social life, so no wild promises ;-)

-Andy

------------------------------------------------------------
F din egen @start.no-adresse gratis p http://www.start.no/



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On Thu, May 30, 2002 at 10:48:32AM +0200, Andy Walker wrote:
> If you remember Richard, I was having all sorts of trouble with a Bluefish
> card in a 725/100 a while back. Think I got the same results in a C110 too.
> Recognized as Zalon, but hung up with SCSI timeouts if there was a disk
> attached. HP-UX booted happily off the same controller & disk.

Hmm.. Bluefish in a 725 should also fail due to non-coherent DMA.
But a C110 has the ccio chip in it, so Bluefish should work fine.

-- 
Revolutions do not require corporate support.



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On Thu, May 30, 2002 at 12:23:49AM -0500, marc  wrote:
> seki:/etc/apt# apt-get install kaffe
> Reading Package Lists... Done
> Building Dependency Tree... Done
> Package kaffe has no available version, but exists in the database.
> This typically means that the package was mentioned in a dependency and
> never uploaded, has been obsoleted or is not available with the contents
> of sources.list
> E: Package kaffe has no installation candidate

looks like no-one's managed to get kaffe built on hppa.  gcj doesn't seem
to be available for hppa either.  In fact, kaffe is only available for
alpha, arm, i386, m68k, powerpc, sparc (ie hppa, ia64, mips, mipsel &
s390 haven't managed to get it working yet).  gcj seems to be available
on everything but hppa, mips & mipsel.  I don't know how much effort is
involved in making these things work.

-- 
Revolutions do not require corporate support.



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Quoting Matthew Wilcox <willy@debian.org>:

> On Thu, May 30, 2002 at 10:48:32AM +0200, Andy Walker wrote:
> > If you remember Richard, I was having all sorts of trouble with a
> Bluefish
> > card in a 725/100 a while back. Think I got the same results in a C110
> too.
> > Recognized as Zalon, but hung up with SCSI timeouts if there was a
> disk
> > attached. HP-UX booted happily off the same controller & disk.
> 
> Hmm.. Bluefish in a 725 should also fail due to non-coherent DMA.
> But a C110 has the ccio chip in it, so Bluefish should work fine.

Okay, don't quote me on the C110 thing. I could be remembering it wrongly.
I'd test it, but my C110 Linux box is in another part of the building
here at work. Maybe test it on the B132 tonight.

While we're talking Bluefish, what is the meaning of the GPI0-3 dip
switches?

-Andy

------------------------------------------------------------
F din egen @start.no-adresse gratis p http://www.start.no/



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and I assume that jikes not working is the same reason that
the kaffe stuff is "lame"?

It would be a shame to have to go back to HP-UX... Our company
is amazingingy enough is happy for once to get on the bleading edge.

-Marc

---------- Original Message ----------------------------------
From: Matthew Wilcox <willy@debian.org>
Date:  Thu, 30 May 2002 12:55:30 +0100

>On Thu, May 30, 2002 at 12:23:49AM -0500, marc  wrote:
>> seki:/etc/apt# apt-get install kaffe
>> Reading Package Lists... Done
>> Building Dependency Tree... Done
>> Package kaffe has no available version, but exists in the database.
>> This typically means that the package was mentioned in a dependency and
>> never uploaded, has been obsoleted or is not available with the contents
>> of sources.list
>> E: Package kaffe has no installation candidate
>
>looks like no-one's managed to get kaffe built on hppa.  gcj doesn't seem
>to be available for hppa either.  In fact, kaffe is only available for
>alpha, arm, i386, m68k, powerpc, sparc (ie hppa, ia64, mips, mipsel &
>s390 haven't managed to get it working yet).  gcj seems to be available
>on everything but hppa, mips & mipsel.  I don't know how much effort is
>involved in making these things work.
>
>-- 
>Revolutions do not require corporate support.
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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Hmmm

CONFIG_KDB=y      : no serial console or FW SCSI
CONFIG_KDB=n      : all works fine.

bizarre!

patrick




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Xref: news.gmane.org gmane.linux.ports.parisc:14921

I edited System.map to get rid of the $lcfu_done sorts of symbols within
the user-space copy routines.  This load, again on a b180, is a bunch of
big file tree copies and syncs and removes mixed with some large file
creation via dd and syncs.

  8443 total                                      0.0048
  2500 lcopy_from_user                           36.7647
   945 lcopy_to_user                             16.8750
   403 memset                                    12.5938
   273 cpu_idle                                   3.7917
   215 ext3_do_update_inode                       0.1701
   151 scsi_dispatch_cmd                          0.1560
   132 journal_dirty_metadata                     0.2115
   129 do_get_write_access                        0.0762
   121 flush_user_icache_range_asm                3.3611
   120 __make_request                             0.0415
   111 journal_get_write_access                   0.6307
    97 journal_cancel_revoke                      0.3566
    90 flush_user_dcache_range_asm                2.5000
    88 ext3_get_inode_loc                         0.1964
    76 get_hash_table                             0.4318
    71 $$remU                                     0.2399
    65 rmqueue                                    0.0710
    65 $$divU                                     0.2257
    58 __journal_file_buffer                      0.0815
    57 d_lookup                                   0.1484
    55 kmem_cache_alloc                           0.1741
    55 journal_add_journal_head                   0.1580
    55 ext3_new_block                             0.0238
    54 link_path_walk                             0.0213
    54 kmem_cache_free                            0.2700
    52 __brelse                                   0.6500
    48 clear_user_page_asm                        0.4286
    44 journal_unlock_journal_head                0.2619
    44 ext3_dirty_inode                           0.1746
    43 generic_file_write                         0.0219
    43 ext3_check_dir_entry                       0.1558
    40 schedule                                   0.0422
    40 __block_prepare_write                      0.0450
    38 start_this_handle                          0.0748
    37 journal_stop                               0.0685
    36 ext3_get_block_handle                      0.0457
    35 scsi_request_fn                            0.0425
    34 mark_page_accessed                         0.3542
    33 kfree                                      0.1618
    32 nfs3_xdr_sattrargs                         0.0116
    32 __jbd_kmalloc                              0.1600
    32 $$mulU                                     0.0602
    31 memscan                                    0.7045
    30 ll_rw_block                                0.0487
    30 journal_start                              0.1056
    30 journal_commit_transaction                 0.0065
    29 memcmp                                     0.3625
    29 ext3_mark_iloc_dirty                       0.2339
    29 ext3_find_entry                            0.0374
    29 do_generic_file_read                       0.0229
    28 __free_pages_ok                            0.0262
    27 kmalloc                                    0.0742
    24 lstrncpy_from_user                         0.3333
    24 __insert_into_lru_list                     0.1053
    22 syscall_restore                            0.0917
    22 ext3_mark_inode_dirty                      0.2500
    22 buffer_insert_inode_queue                  0.3235
    22 __mark_inode_dirty                         0.1341
    21 __wake_up                                  0.0750
    20 ext3_add_entry                             0.0158
    19 memcpy                                     0.5278
    19 ext3_reserve_inode_write                   0.0742
    19 ext3_new_inode                             0.0075
    18 ext3_get_branch                            0.0608
    18 ext3_alloc_branch                          0.0201
    18 bread                                      0.1324
    17 ext3_test_allocatable                      0.2024
    17 ext3_get_group_desc                        0.0944
    17 ext3_commit_write                          0.0281
    17 dput                                       0.0394
    16 walk_page_buffers                          0.0635
    16 unlock_page                                0.1143
    16 try_to_free_buffers                        0.0435
    16 sys_write                                  0.0455
    16 sys_read                                   0.0455
    16 getblk                                     0.1429
    16 __journal_unfile_buffer                    0.0288
    16 __free_pages                               0.2105
    15 path_init                                  0.0291
    15 __refile_buffer                            0.1250
    15 __block_commit_write                       0.0399
    14 shrink_cache                               0.0136
    14 find_inode                                 0.0814
    14 add_to_page_cache_unique                   0.0673
    13 fput                                       0.0332
    12 reschedule_idle                            0.0140
    12 permission                                 0.1500
    12 get_empty_filp                             0.0361
    12 generic_make_request                       0.0273
    12 fimanyloop                                 0.6000
    12 __journal_remove_journal_head              0.0303
    12 $$remI                                     0.0366
    11 vfs_permission                             0.0316
    11 set_buffer_flushtime                       0.3929
    11 sd_init_command                            0.0119
    11 open_namei                                 0.0071
    11 lru_cache_add                              0.0550
    11 ext3_splice_branch                         0.0179
    11 ext3_clear_blocks                          0.0243
    11 ext3_block_to_path                         0.0404
    11 __alloc_pages                              0.0204
    10 truncate_list_pages                        0.0216
    10 submit_bh                                  0.0532
    10 journal_dirty_data                         0.0198
    10 ext3_prepare_write                         0.0253
    10 copy_user_page_asm                         0.0658
    10 add_page_to_hash_queue                     0.0806
    10 __remove_from_lru_list                     0.0781
     9 pipe_read                                  0.0138
     9 fdsync                                     0.4500
     9 ext3_writepage_trans_blocks                0.0592
     9 ext3_getblk                                0.0112
     9 ext3_free_data                             0.0186
     9 create_buffers                             0.0352
     9 __find_lock_page_helper                    0.0433
     8 prune_icache                               0.0233
     8 journal_unmap_buffer                       0.0127
     8 journal_flushpage                          0.0157
     8 get_unused_buffer_head                     0.0444
     8 ext3_read_inode                            0.0084
     8 ext3_free_blocks                           0.0043
     8 __remove_inode_page                        0.0541
     7 unlock_buffer                              0.0583
     7 syscall_exit                               0.2500
     7 sd_find_queue                              0.1250
     7 prune_dcache                               0.0152
     7 log_space_left                             0.2188
     7 journal_get_undo_access                    0.0194
     7 intr_restore                               0.0155
     7 handle_interruption                        0.0054
     7 getname                                    0.0287
     7 ext3_get_block                             0.0372
     7 ext3_forget                                0.0233
     7 block_read_full_page                       0.0091
     7 add_timer                                  0.0269
     7 _switch_to_ret                             0.0090
     6 update_atime                               0.0484
     6 scsi_init_io_v                             0.0205
     6 purge_kernel_dcache_page                   0.0600
     6 generic_commit_write                       0.0417
     6 fget                                       0.0938
     6 fcntl_dirnotify                            0.0152
     6 create_empty_buffers                       0.0375
     5 syscall_check_bh                           0.3125
     5 path_release                               0.0595
     5 page_cache_read                            0.0171
     5 nr_free_buffer_pages                       0.0694
     5 iput                                       0.0080
     5 get_unused_fd                              0.0114
     5 get_new_inode                              0.0094
     5 ext3_orphan_del                            0.0071
     5 ext3_find_goal                             0.0179
     5 ext3_create                                0.0142
     5 d_alloc                                    0.0117
     5 bcopy                                      0.1389
     5 balance_dirty_state                        0.0347
     5 _switch_to                                 0.0463
     5 __user_walk                                0.0379
     5 __down_read                                0.0305
     4 sys_utime                                  0.0130
     4 sys_close                                  0.0244
     4 pipe_write                                 0.0052
     4 notify_change                              0.0095
     4 ncr_queue_command                          0.0013
     4 journal_try_to_free_buffers                0.0175
     4 journal_alloc_journal_head                 0.0244
     4 generic_unplug_device                      0.0588
     4 filldir64                                  0.0116
     4 ext3_bread                                 0.0270
     4 dentry_open                                0.0076
     4 clear_inode                                0.0172
     4 cached_lookup                              0.0323
     4 add_wait_queue                             0.0833
     4 __wake_up_sync                             0.0132
     4 __put_unused_buffer_head                   0.0263
     4 __lru_cache_del                            0.0286
     4 __free_pte                                 0.0286
     4 __find_lock_page                           0.1429
     4 Letext                                     0.0270
     3 truncate_complete_page                     0.0259
     3 sys_open                                   0.0107
     3 sys_fcntl                                  0.0268
     3 put_filp                                   0.0288
     3 lookup_hash                                0.0132
     3 locks_remove_posix                         0.0079
     3 journal_dirty_sync_data                    0.0214
     3 grow_buffers                               0.0070
     3 filemap_nopage                             0.0044
     3 file_read_actor                            0.0234
     3 ext3_truncate                              0.0026
     3 ext3_readdir                               0.0026
     3 ext3_free_inode                            0.0022
     3 ext3_file_write                            0.0208
     3 d_rehash                                   0.0187
     3 _alloc_pages                               0.0682
     3 __up_read                                  0.0341
     3 ___wait_on_page                            0.0150
     2 write_some_buffers                         0.0060
     2 vfs_readdir                                0.0064
     2 try_to_release_page                        0.0139
     2 sys_newstat                                0.0125
     2 sys_getdents64                             0.0106
     2 scsi_add_timer                             0.0119
     2 refile_buffer                              0.0833
     2 pipe_wait                                  0.0081
     2 lookup_create                              0.0109
     2 locks_remove_flock                         0.0161
     2 kmem_cache_reap                            0.0034
     2 intr_do_resched                            0.0556
     2 inode_setattr                              0.0075
     2 inode_has_buffers                          0.0455
     2 inode_change_ok                            0.0042
     2 init_rwsem                                 0.1000
     2 in_group_p                                 0.0385
     2 grow_dev_page                              0.0086
     2 get_empty_inode                            0.0116
     2 generic_file_readahead                     0.0048
     2 generic_file_read                          0.0060
     2 ext3_unlink                                0.0037
     2 ext3_orphan_add                            0.0030
     2 ext3_alloc_block                           0.0500
     2 end_buffer_io_sync                         0.0192
     2 do_page_fault                              0.0026
     2 do_no_page                                 0.0044
     2 do_journal_get_write_access                0.0147
     2 dispose_list                               0.0139
     2 buffer_insert_inode_data_queue             0.0294
     2 block_prepare_write                        0.0217
     2 bdget                                      0.0060
     2 add_wait_queue_exclusive                   0.0417
     2 __run_task_queue                           0.0143
     1 zap_page_range                             0.0011
     1 wait_for_buffers                           0.0038
     1 vm_enough_memory                           0.0063
     1 unmap_underlying_metadata                  0.0064
     1 tty_poll                                   0.0049
     1 tcp_write_xmit                             0.0013
     1 syscall_restore_rfi                        0.0357
     1 syscall_check_sig                          0.0833
     1 syscall_check_resched                      0.1250
     1 sys_rt_sigprocmask                         0.0027
     1 sys_lstat64                                0.0063
     1 sys_fstat64                                0.0068
     1 sync_unlocked_inodes                       0.0023
     1 sync_page_buffers                          0.0029
     1 swap_out                                   0.0006
     1 skb_checksum                               0.0017
     1 sk_run_filter                              0.0004
     1 shrink_dcache_sb                           0.0021
     1 set_bh_page                                0.0100
     1 select_parent                              0.0068
     1 scsi_malloc                                0.0046
     1 refill_inactive                            0.0021
     1 real_lookup                                0.0028
     1 read_chan                                  0.0005
     1 rb_erase                                   0.0033
     1 number                                     0.0009
     1 lookup_one_len                             0.0086
     1 load_inode_bitmap                          0.0019
     1 kswapd_can_sleep_pgdat                     0.0179
     1 journal_revoke                             0.0021
     1 journal_get_create_access                  0.0016
     1 journal_forget                             0.0015
     1 intr_return                                0.0500
     1 intr_check_sig                             0.0833
     1 iget4                                      0.0029
     1 handle_mm_fault                            0.0037
     1 get_pid                                    0.0028
     1 flush_kernel_icache_page                   0.0100
     1 flush_kernel_dcache_page                   0.0100
     1 fioneloop                                  0.1250
     1 find_vma_prev                              0.0119
     1 find_or_create_page                        0.0030
     1 find_next_usable_block                     0.0010
     1 filp_open                                  0.0093
     1 filp_close                                 0.0068
     1 filemap_fdatasync                          0.0035
     1 ext3_setattr                               0.0022
     1 ext3_free_branches                         0.0014
     1 ext3_delete_inode                          0.0028
     1 ext3_block_truncate_page                   0.0010
     1 ext2_update_inode                          0.0008
     1 ext2_get_branch                            0.0034
     1 ext2_get_block                             0.0008
     1 empty_dir                                  0.0016
     1 do_select                                  0.0017
     1 do_munmap                                  0.0014
     1 do_anonymous_page                          0.0028
     1 datagram_poll                              0.0034
     1 cp_new_stat64                              0.0022
     1 copy_strings                               0.0047
     1 copy_page_range                            0.0018
     1 block_truncate_page                        0.0019
     1 block_commit_write                         0.0179
     1 balance_dirty                              0.0132
     1 __wait_on_buffer                           0.0037
     1 __try_to_free_cp_buf                       0.0100
     1 __remove_inode_queue                       0.0417
     1 __journal_remove_checkpoint                0.0066
     1 __down_write                               0.0064
     1 $$divI                                     0.0030



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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] I/O-centric profile
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To: Paul Bame <bame@fc.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:14922

Hi Paul,

I would like to compare with 2.4.19-pre9-pa30 of my stuff and 2.4.18-pa24
(reboot with profile=2) but all what I get is a long list of zero when I run:
readprofile -m /boot/System.map-... -av. 
Does it need a kernel patch?

Thanks in advance,
    Joel

Quoting Paul Bame <bame@fc.hp.com>:

> 
> I edited System.map to get rid of the $lcfu_done sorts of symbols
> within
> the user-space copy routines.  This load, again on a b180, is a bunch
> of
> big file tree copies and syncs and removes mixed with some large file
> creation via dd and syncs.
> 
>   8443 total                                      0.0048
>   2500 lcopy_from_user                           36.7647
>    945 lcopy_to_user                             16.8750
>    403 memset                                    12.5938
>    273 cpu_idle                                   3.7917
>    215 ext3_do_update_inode                       0.1701
>    151 scsi_dispatch_cmd                          0.1560
>    132 journal_dirty_metadata                     0.2115
>    129 do_get_write_access                        0.0762
>    121 flush_user_icache_range_asm                3.3611
>    120 __make_request                             0.0415
>    111 journal_get_write_access                   0.6307
>     97 journal_cancel_revoke                      0.3566
>     90 flush_user_dcache_range_asm                2.5000
>     88 ext3_get_inode_loc                         0.1964
>     76 get_hash_table                             0.4318
>     71 $$remU                                     0.2399
>     65 rmqueue                                    0.0710
>     65 $$divU                                     0.2257
>     58 __journal_file_buffer                      0.0815
>     57 d_lookup                                   0.1484
>     55 kmem_cache_alloc                           0.1741
>     55 journal_add_journal_head                   0.1580
>     55 ext3_new_block                             0.0238
>     54 link_path_walk                             0.0213
>     54 kmem_cache_free                            0.2700
>     52 __brelse                                   0.6500
>     48 clear_user_page_asm                        0.4286
>     44 journal_unlock_journal_head                0.2619
>     44 ext3_dirty_inode                           0.1746
>     43 generic_file_write                         0.0219
>     43 ext3_check_dir_entry                       0.1558
>     40 schedule                                   0.0422
>     40 __block_prepare_write                      0.0450
>     38 start_this_handle                          0.0748
>     37 journal_stop                               0.0685
>     36 ext3_get_block_handle                      0.0457
>     35 scsi_request_fn                            0.0425
>     34 mark_page_accessed                         0.3542
>     33 kfree                                      0.1618
>     32 nfs3_xdr_sattrargs                         0.0116
>     32 __jbd_kmalloc                              0.1600
>     32 $$mulU                                     0.0602
>     31 memscan                                    0.7045
>     30 ll_rw_block                                0.0487
>     30 journal_start                              0.1056
>     30 journal_commit_transaction                 0.0065
>     29 memcmp                                     0.3625
>     29 ext3_mark_iloc_dirty                       0.2339
>     29 ext3_find_entry                            0.0374
>     29 do_generic_file_read                       0.0229
>     28 __free_pages_ok                            0.0262
>     27 kmalloc                                    0.0742
>     24 lstrncpy_from_user                         0.3333
>     24 __insert_into_lru_list                     0.1053
>     22 syscall_restore                            0.0917
>     22 ext3_mark_inode_dirty                      0.2500
>     22 buffer_insert_inode_queue                  0.3235
>     22 __mark_inode_dirty                         0.1341
>     21 __wake_up                                  0.0750
>     20 ext3_add_entry                             0.0158
>     19 memcpy                                     0.5278
>     19 ext3_reserve_inode_write                   0.0742
>     19 ext3_new_inode                             0.0075
>     18 ext3_get_branch                            0.0608
>     18 ext3_alloc_branch                          0.0201
>     18 bread                                      0.1324
>     17 ext3_test_allocatable                      0.2024
>     17 ext3_get_group_desc                        0.0944
>     17 ext3_commit_write                          0.0281
>     17 dput                                       0.0394
>     16 walk_page_buffers                          0.0635
>     16 unlock_page                                0.1143
>     16 try_to_free_buffers                        0.0435
>     16 sys_write                                  0.0455
>     16 sys_read                                   0.0455
>     16 getblk                                     0.1429
>     16 __journal_unfile_buffer                    0.0288
>     16 __free_pages                               0.2105
>     15 path_init                                  0.0291
>     15 __refile_buffer                            0.1250
>     15 __block_commit_write                       0.0399
>     14 shrink_cache                               0.0136
>     14 find_inode                                 0.0814
>     14 add_to_page_cache_unique                   0.0673
>     13 fput                                       0.0332
>     12 reschedule_idle                            0.0140
>     12 permission                                 0.1500
>     12 get_empty_filp                             0.0361
>     12 generic_make_request                       0.0273
>     12 fimanyloop                                 0.6000
>     12 __journal_remove_journal_head              0.0303
>     12 $$remI                                     0.0366
>     11 vfs_permission                             0.0316
>     11 set_buffer_flushtime                       0.3929
>     11 sd_init_command                            0.0119
>     11 open_namei                                 0.0071
>     11 lru_cache_add                              0.0550
>     11 ext3_splice_branch                         0.0179
>     11 ext3_clear_blocks                          0.0243
>     11 ext3_block_to_path                         0.0404
>     11 __alloc_pages                              0.0204
>     10 truncate_list_pages                        0.0216
>     10 submit_bh                                  0.0532
>     10 journal_dirty_data                         0.0198
>     10 ext3_prepare_write                         0.0253
>     10 copy_user_page_asm                         0.0658
>     10 add_page_to_hash_queue                     0.0806
>     10 __remove_from_lru_list                     0.0781
>      9 pipe_read                                  0.0138
>      9 fdsync                                     0.4500
>      9 ext3_writepage_trans_blocks                0.0592
>      9 ext3_getblk                                0.0112
>      9 ext3_free_data                             0.0186
>      9 create_buffers                             0.0352
>      9 __find_lock_page_helper                    0.0433
>      8 prune_icache                               0.0233
>      8 journal_unmap_buffer                       0.0127
>      8 journal_flushpage                          0.0157
>      8 get_unused_buffer_head                     0.0444
>      8 ext3_read_inode                            0.0084
>      8 ext3_free_blocks                           0.0043
>      8 __remove_inode_page                        0.0541
>      7 unlock_buffer                              0.0583
>      7 syscall_exit                               0.2500
>      7 sd_find_queue                              0.1250
>      7 prune_dcache                               0.0152
>      7 log_space_left                             0.2188
>      7 journal_get_undo_access                    0.0194
>      7 intr_restore                               0.0155
>      7 handle_interruption                        0.0054
>      7 getname                                    0.0287
>      7 ext3_get_block                             0.0372
>      7 ext3_forget                                0.0233
>      7 block_read_full_page                       0.0091
>      7 add_timer                                  0.0269
>      7 _switch_to_ret                             0.0090
>      6 update_atime                               0.0484
>      6 scsi_init_io_v                             0.0205
>      6 purge_kernel_dcache_page                   0.0600
>      6 generic_commit_write                       0.0417
>      6 fget                                       0.0938
>      6 fcntl_dirnotify                            0.0152
>      6 create_empty_buffers                       0.0375
>      5 syscall_check_bh                           0.3125
>      5 path_release                               0.0595
>      5 page_cache_read                            0.0171
>      5 nr_free_buffer_pages                       0.0694
>      5 iput                                       0.0080
>      5 get_unused_fd                              0.0114
>      5 get_new_inode                              0.0094
>      5 ext3_orphan_del                            0.0071
>      5 ext3_find_goal                             0.0179
>      5 ext3_create                                0.0142
>      5 d_alloc                                    0.0117
>      5 bcopy                                      0.1389
>      5 balance_dirty_state                        0.0347
>      5 _switch_to                                 0.0463
>      5 __user_walk                                0.0379
>      5 __down_read                                0.0305
>      4 sys_utime                                  0.0130
>      4 sys_close                                  0.0244
>      4 pipe_write                                 0.0052
>      4 notify_change                              0.0095
>      4 ncr_queue_command                          0.0013
>      4 journal_try_to_free_buffers                0.0175
>      4 journal_alloc_journal_head                 0.0244
>      4 generic_unplug_device                      0.0588
>      4 filldir64                                  0.0116
>      4 ext3_bread                                 0.0270
>      4 dentry_open                                0.0076
>      4 clear_inode                                0.0172
>      4 cached_lookup                              0.0323
>      4 add_wait_queue                             0.0833
>      4 __wake_up_sync                             0.0132
>      4 __put_unused_buffer_head                   0.0263
>      4 __lru_cache_del                            0.0286
>      4 __free_pte                                 0.0286
>      4 __find_lock_page                           0.1429
>      4 Letext                                     0.0270
>      3 truncate_complete_page                     0.0259
>      3 sys_open                                   0.0107
>      3 sys_fcntl                                  0.0268
>      3 put_filp                                   0.0288
>      3 lookup_hash                                0.0132
>      3 locks_remove_posix                         0.0079
>      3 journal_dirty_sync_data                    0.0214
>      3 grow_buffers                               0.0070
>      3 filemap_nopage                             0.0044
>      3 file_read_actor                            0.0234
>      3 ext3_truncate                              0.0026
>      3 ext3_readdir                               0.0026
>      3 ext3_free_inode                            0.0022
>      3 ext3_file_write                            0.0208
>      3 d_rehash                                   0.0187
>      3 _alloc_pages                               0.0682
>      3 __up_read                                  0.0341
>      3 ___wait_on_page                            0.0150
>      2 write_some_buffers                         0.0060
>      2 vfs_readdir                                0.0064
>      2 try_to_release_page                        0.0139
>      2 sys_newstat                                0.0125
>      2 sys_getdents64                             0.0106
>      2 scsi_add_timer                             0.0119
>      2 refile_buffer                              0.0833
>      2 pipe_wait                                  0.0081
>      2 lookup_create                              0.0109
>      2 locks_remove_flock                         0.0161
>      2 kmem_cache_reap                            0.0034
>      2 intr_do_resched                            0.0556
>      2 inode_setattr                              0.0075
>      2 inode_has_buffers                          0.0455
>      2 inode_change_ok                            0.0042
>      2 init_rwsem                                 0.1000
>      2 in_group_p                                 0.0385
>      2 grow_dev_page                              0.0086
>      2 get_empty_inode                            0.0116
>      2 generic_file_readahead                     0.0048
>      2 generic_file_read                          0.0060
>      2 ext3_unlink                                0.0037
>      2 ext3_orphan_add                            0.0030
>      2 ext3_alloc_block                           0.0500
>      2 end_buffer_io_sync                         0.0192
>      2 do_page_fault                              0.0026
>      2 do_no_page                                 0.0044
>      2 do_journal_get_write_access                0.0147
>      2 dispose_list                               0.0139
>      2 buffer_insert_inode_data_queue             0.0294
>      2 block_prepare_write                        0.0217
>      2 bdget                                      0.0060
>      2 add_wait_queue_exclusive                   0.0417
>      2 __run_task_queue                           0.0143
>      1 zap_page_range                             0.0011
>      1 wait_for_buffers                           0.0038
>      1 vm_enough_memory                           0.0063
>      1 unmap_underlying_metadata                  0.0064
>      1 tty_poll                                   0.0049
>      1 tcp_write_xmit                             0.0013
>      1 syscall_restore_rfi                        0.0357
>      1 syscall_check_sig                          0.0833
>      1 syscall_check_resched                      0.1250
>      1 sys_rt_sigprocmask                         0.0027
>      1 sys_lstat64                                0.0063
>      1 sys_fstat64                                0.0068
>      1 sync_unlocked_inodes                       0.0023
>      1 sync_page_buffers                          0.0029
>      1 swap_out                                   0.0006
>      1 skb_checksum                               0.0017
>      1 sk_run_filter                              0.0004
>      1 shrink_dcache_sb                           0.0021
>      1 set_bh_page                                0.0100
>      1 select_parent                              0.0068
>      1 scsi_malloc                                0.0046
>      1 refill_inactive                            0.0021
>      1 real_lookup                                0.0028
>      1 read_chan                                  0.0005
>      1 rb_erase                                   0.0033
>      1 number                                     0.0009
>      1 lookup_one_len                             0.0086
>      1 load_inode_bitmap                          0.0019
>      1 kswapd_can_sleep_pgdat                     0.0179
>      1 journal_revoke                             0.0021
>      1 journal_get_create_access                  0.0016
>      1 journal_forget                             0.0015
>      1 intr_return                                0.0500
>      1 intr_check_sig                             0.0833
>      1 iget4                                      0.0029
>      1 handle_mm_fault                            0.0037
>      1 get_pid                                    0.0028
>      1 flush_kernel_icache_page                   0.0100
>      1 flush_kernel_dcache_page                   0.0100
>      1 fioneloop                                  0.1250
>      1 find_vma_prev                              0.0119
>      1 find_or_create_page                        0.0030
>      1 find_next_usable_block                     0.0010
>      1 filp_open                                  0.0093
>      1 filp_close                                 0.0068
>      1 filemap_fdatasync                          0.0035
>      1 ext3_setattr                               0.0022
>      1 ext3_free_branches                         0.0014
>      1 ext3_delete_inode                          0.0028
>      1 ext3_block_truncate_page                   0.0010
>      1 ext2_update_inode                          0.0008
>      1 ext2_get_branch                            0.0034
>      1 ext2_get_block                             0.0008
>      1 empty_dir                                  0.0016
>      1 do_select                                  0.0017
>      1 do_munmap                                  0.0014
>      1 do_anonymous_page                          0.0028
>      1 datagram_poll                              0.0034
>      1 cp_new_stat64                              0.0022
>      1 copy_strings                               0.0047
>      1 copy_page_range                            0.0018
>      1 block_truncate_page                        0.0019
>      1 block_commit_write                         0.0179
>      1 balance_dirty                              0.0132
>      1 __wait_on_buffer                           0.0037
>      1 __try_to_free_cp_buf                       0.0100
>      1 __remove_inode_queue                       0.0417
>      1 __journal_remove_checkpoint                0.0066
>      1 __down_write                               0.0064
>      1 $$divI                                     0.0030
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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Subject: [parisc-linux] gcc-cvs problem
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Hi all,

I try to rebuild toolchain on my new b2000 with last binutils-cvs glic-2.2.5
(debian) and last gcc-cvs (aka 3.2?).

The procedure works fine with gcc-cvs dated 20020424 but now it failed on glibc
compile with following message:
/Develop/parisc-linux/parisc-SN32/bin/hppa-linux-gcc
../sysdeps/unix/sysv/linux/init-first.c -c -O2 -Wall -Winline
-Wstrict-prototypes -Wwrite-strings -g      -I../include -I.
-I/Develop/parisc-linux/build/glibc/csu -I.. -I../libio 
-I/Develop/parisc-linux/build/glibc -I../sysdeps/hppa/elf
-I../linuxthreads/sysdeps/unix/sysv/linux/hppa
-I../linuxthreads/sysdeps/unix/sysv/linux -I../linuxthreads/sysdeps/pthread
-I../sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv
-I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/hppa
-I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu
-I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet
-I../sysdeps/unix/sysv -I../sysdeps/unix -I../sysdeps/posix
-I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32
-I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu
-I../sysdeps/hppa -I../sysdeps/ieee754 -I../sysdeps/generic/elf
-I../sysdeps/generic  -nostdinc -isystem
/Develop/parisc-linux/parisc-SN32/lib/gcc-lib/hppa-linux/3.2/include -isystem
/Develop/parisc-linux/src/linux/include -D_LIBC_REENTRANT -include
../include/libc-symbols.h     -DHAVE_INITFINI -o
/Develop/parisc-linux/build/glibc/csu/init-first.o
In file included from ../include/pthread.h:1,
                 from ../linuxthreads/sysdeps/pthread/bits/libc-lock.h:23,
                 from ../sysdeps/generic/ldsodefs.h:34,
                 from ../sysdeps/unix/sysv/linux/ldsodefs.h:25,
                 from ../sysdeps/unix/sysv/linux/init-first.c:32:
../linuxthreads/sysdeps/pthread/pthread.h:163: parse error before "__thread"
../linuxthreads/sysdeps/pthread/pthread.h:165: `pthread_create' declared as
function returning a function
../linuxthreads/sysdeps/pthread/pthread.h:165: warning: function declaration
isn't a prototype
../linuxthreads/sysdeps/pthread/pthread.h:166: parse error before "void"
../linuxthreads/sysdeps/pthread/pthread.h:591: storage class specified for
parameter `type name'
In file included from ../linuxthreads/sysdeps/pthread/pthread.h:655,
                 from ../include/pthread.h:1,
                 from ../linuxthreads/sysdeps/pthread/bits/libc-lock.h:23,
                 from ../sysdeps/generic/ldsodefs.h:34,
                 from ../sysdeps/unix/sysv/linux/ldsodefs.h:25,
                 from ../sysdeps/unix/sysv/linux/init-first.c:32:
../linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h:36: storage class
specified for parameter `type name'
make[2]: *** [/Develop/parisc-linux/build/glibc/csu/init-first.o] Error 1
make[2]: Leaving directory `/Develop/parisc-linux/src/glibc/csu'
make[1]: *** [csu/subdir_lib] Error 2
make[1]: Leaving directory `/Develop/parisc-linux/src/glibc'
make: *** [all] Error 2

### Thu May 30 19:04:35 2002 ###

Any idea?

Joel

ps: glibc tree was prepare in accordance with Carlos howto.

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> In file included from ../include/pthread.h:1,
>                  from ../linuxthreads/sysdeps/pthread/bits/libc-lock.h:23,
>                  from ../sysdeps/generic/ldsodefs.h:34,
>                  from ../sysdeps/unix/sysv/linux/ldsodefs.h:25,
>                  from ../sysdeps/unix/sysv/linux/init-first.c:32:
> ../linuxthreads/sysdeps/pthread/pthread.h:163: parse error before "__thread"

See <http://gcc.gnu.org/ml/gcc-patches/2002-05/msg01780.html> for fix.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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"marc " wrote:
> I got ssh up and running. Also, why does it bomb when I uncomment the line in
>    my sources.list that has to do with the security updates??

Any other takers?
I have no clue.
Can you post output to debian-hppa list?
I expect someone there will know.

> I have network connectivity now, and heres what I get for the
> java possibilities:

Phil Pinkerton had complained about this earlier.
He couldn't even get the code from Sun to compile.
Maybe you want to look up his email in the parisc-linux
mail archives and ask him.

hth,
grant



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On Thu, May 30, 2002 at 02:52:06PM -0600, Grant Grundler wrote:
> Any other takers?
> I have no clue.
> Can you post output to debian-hppa list?
> I expect someone there will know.

because security updates are only available for stable.  since woody is
not yet released, there are no security updates for woody.

-- 
Revolutions do not require corporate support.



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> > I have network connectivity now, and heres what I get for the
> > java possibilities:
> 
> Phil Pinkerton had complained about this earlier.
> He couldn't even get the code from Sun to compile.

gcj builds without problem on all parisc configurations.  However,
nobody has done the work to port the java libraries.  I imagine
that getting the libraries to build under hppa-linux should be
pretty straight forward.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Andy Walker wrote:
> If you remember Richard, I was having all sorts of trouble with a Bluefish
> card in a 725/100 a while back. Think I got the same results in a C110 too.

That certainly wasn't because of cache coherency support.
725/100 is not cache coherent. C110 is.

grant



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On Thu, May 30, 2002 at 05:01:45PM -0400, John David Anglin wrote:
> > > I have network connectivity now, and heres what I get for the
> > > java possibilities:
> > 
> > Phil Pinkerton had complained about this earlier.
> > He couldn't even get the code from Sun to compile.
> 
> gcj builds without problem on all parisc configurations.  However,
> nobody has done the work to port the java libraries.  I imagine
> that getting the libraries to build under hppa-linux should be
> pretty straight forward.

For some reason, doko disabled gcj from building in debian's packages.
Anyone know why?

-- 
Revolutions do not require corporate support.



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> > gcj builds without problem on all parisc configurations.  However,
> > nobody has done the work to port the java libraries.  I imagine
> > that getting the libraries to build under hppa-linux should be
> > pretty straight forward.
> 
> For some reason, doko disabled gcj from building in debian's packages.
> Anyone know why?

Probably, since gcj is more or less useless without the libraries.
The hard part may be libffi.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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If anyone is interested in seeing an image of my J5000's LCD screen, 
updated every 60 seconds.

http://demo.apptechsys.com/HPUXWebCam/


-- 
You definitely intend to start living sometime soon.




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On Wed, May 29, 2002 at 10:09:27AM -0400, John David Anglin wrote:
> > You mean like
> > 
> > Breakpoint 1, main (argc=1, argv=0xbff00148) at ../simple.c:16
> > 16              a = thing(1);
> > (gdb) print thing(7)
> 
> Yes.  I find this an extremely useful feature in debugging gcc.  It
> has various hooks to print rtl and tree structs that I miss not being
> able to use.

I've got this semi-working now.  Simple cases like the example above now
work (thing(n) returns n*2).  Other cases, such as print strlen("abc")
crash the target program.  I'll keep working on it and post a diff once
it works for a few more cases.

Richard




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Xref: news.gmane.org gmane.linux.ports.parisc:14933

The Desk of Dr.TONDE
 
 
Zenith Bank of Nigeria,
Lagos-Nigeria.
 
Dear Sir,

STRICTLY A PRIVATE BUSINESS PROPOSAL
 
I am Dr.TONDE, The manager, Bills and
Exchange at the Foreign Remittance Department of the Zenith
Bank of Nigeria Plc. I am writing this letter to ask for your
support and cooperation to carry out this business opportunity in 
my department.
We discovered an  abandoned sum of USD$50.3M(Fifty million three 
hundreds United States Dollars only) in an account that belongs to 
one of our foreign customers who died along with his entire family 
of a wife and two children in November 1997 in a Plane crash.

Since we heard of his death, we have been expecting
his next-of-kin to come over and put claims for his money as the 
heir, because we cannot release the fund from his account unless 
someone applies for claim as the next-of-kin to
the deceased as indicated in our banking guidelines.
Unfortunately, neither their family member nor
distant relative has everappeared to claim the said fund. Upon this
discovery, I and other officials in my department have agreed to 
make business with you and release the total amount into your 
account as the heir of the fund since no one came
for it or discovered he maintained account with our bank, otherwise 
the fund will be returned to the banks treasury as unclaimed fund.
We have agreed that our ratio of sharing will be as
stated thus;

20 % for you as foreign partner,
5 % for us the officials in my department and
5 % for the settlement of all local and foreign
expences incurred by us and you during the course of
this business.
Upon the successful completion of this transfer, I
and one of my colleagues will come to your country and
mind our share. It is from our 75 % we intend to import 
Agricultural Machineries into my country
as a way of recycling the fund. To commence this
transaction, we require you to immediately
indicate your interest by a return e-mail and
enclose your private contact telephone number, fax number full
name and address and your designated bank coordinates to enable us 
file letter of claim to the appropriate departments for necessary 
approvals before the transfer can be
made. 

Note also, this transaction must be kept STRICTLY
CONFIDENTIAL because of its nature.
 
I look forward to receiving your prompt response through me 
alternative e-mail address (dr_tonde@rediffmail.com).
 
Dr.TONDE

Zenith Bank of Nigeria










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Subject: Re: [parisc-linux] kdb_v21 branch updated to -pa26, and kallsyms cross-compile
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Xref: news.gmane.org gmane.linux.ports.parisc:14934

On Thu, May 30, 2002 at 01:35:15PM -0400, Carlos O'Donell Jr. wrote:
> > Hmmm
> > CONFIG_KDB=y      : no serial console or FW SCSI
> > CONFIG_KDB=n      : all works fine.
> > bizarre!
> > patrick
> >
> 
> Did you try building+booting from the kdb patches?

Yes, exactly the same results. There's some thing different about the
binary vmlinux thatmay, or may not, be relevant. The kdb one seems to
have fewer segments than a non-kdb one:

(Normal boot:)
ELF32 executable
Entry 00100000 first 00100000 n 6
Segment 0 load 00100000 size 1937528 mediaptr 0x1000
Segment 1 load 002da000 size 295576 mediaptr 0x1db000
Segment 2 load 00324000 size 247332 mediaptr 0x224000
Segment 3 load 00364000 size 8192 mediaptr 0x261000
Segment 4 load 00368000 size 32768 mediaptr 0x263000
Segment 5 load 00391084 size 97664 mediaptr 0x26b084
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

(total segment size: 2619060)


KDB boot:
ELF32 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 2035156 mediaptr 0x1000
Segment 1 load 002f2000 size 692152 mediaptr 0x1f2000
Segment 2 load 0039c000 size 253952 mediaptr 0x29b000
Segment 3 load 003e0000 size 32768 mediaptr 0x2d9000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

(total segment size: 3014028)


Patrick




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Subject: RE: [parisc-linux] PRIVATE BUSINESS
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Isn't this just such a beautiful scam. All the elements are there, loads of
cash, help for a poor agricultural nation, official sounding names, and so
on. Such a pity that it is a total scam ,and for some (apparently) very
dangerous.

-----Original Message-----
From: Dr.TONDE [mailto:dr_tonde@rediffmail.com]
Sent: Friday, May 31, 2002 4:36 AM
To: parisc-linux@parisc-linux.org
Subject: [parisc-linux] PRIVATE BUSINESS


The Desk of Dr.TONDE
 
 
Zenith Bank of Nigeria,
Lagos-Nigeria.
 
Dear Sir,

STRICTLY A PRIVATE BUSINESS PROPOSAL
>>-----------------SCAM Data snipped----------------------<<



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Why do useful listings always end up getting spamed.

:(

Rob

At 11:35 31/05/02 +0200, you wrote:
>Isn't this just such a beautiful scam. All the elements are there, loads of
>cash, help for a poor agricultural nation, official sounding names, and so
>on. Such a pity that it is a total scam ,and for some (apparently) very
>dangerous.
>
>-----Original Message-----
>From: Dr.TONDE [mailto:dr_tonde@rediffmail.com]
>Sent: Friday, May 31, 2002 4:36 AM
>To: parisc-linux@parisc-linux.org
>Subject: [parisc-linux] PRIVATE BUSINESS
>
>
>The Desk of Dr.TONDE
>
>
>Zenith Bank of Nigeria,
>Lagos-Nigeria.
>
>Dear Sir,
>
>STRICTLY A PRIVATE BUSINESS PROPOSAL
> >>-----------------SCAM Data snipped----------------------<<
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux





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Subject: Re: [parisc-linux] install on A180c
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> Jonathan Pulfer wrote:
> > Could anyone give me some pointers as to kernel parameters that need to
> > be passed to PALO or whether I need to use a serial console please.
>=20
> I suggest trying serial console if you can.
> I'm not intimately familiar with web console on A180's but have
> heard it's not the same as remote consoles on other parisc servers.
>=20
> grant

I have tried using a serial console and here is the output on the console: -


=DE=DE=DE

Firmware Version  39.32

Duplex Console IO Dependent Code (IODC) revision 4

---------------------------------------------------------------------------=
---
   (c) Copyright 1996-1999, Hewlett-Packard Company, All rights reserved
---------------------------------------------------------------------------=
---

   Processor Speed   Coprocessor State  Cache Size
   ---------------   -----------------  ----------
   180 MHz           Functional         64 KB
                                         1 MB additional

  Model: A180c/1

  Available memory (bytes)    :  268435456=20

  Primary boot path:    8/16/5.6   (dec)
  Alternate boot path:  8/16/5.0   (dec)
  Console path:         8/16/4.0   (dec)

------- Main Menu ---------------------------------------------------------=
----

        Command                         Description
        -------                         -----------
        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON] [<path>]     Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration [<command>]       Access Configuration menu/commands
        INformation [<command>]         Access Information menu/commands
        SERvice [<command>]             Access Service menu/commands

        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command > boot 8/16/5.1
Interact with IPL (Y, N, or Cancel)?> y

Booting...=20
Boot IO Dependent Code (IODC) revision 144


HARD Booted.
palo ipl 0.96 root@palinux Fri Nov  2 16:31:18 MST 2001

Boot image contains:
    0/vmlinux32 3122078 bytes @ 0x4cf000
    0/vmlinux64 3990942 bytes @ 0x7c9800
    0/ramdisk 1946807 bytes @ 0xb98000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently  used by firmware (serial).
Current command line:
0/vmlinux root=3D/dev/ram initrd=3D0/ramdisk console=3DttyS0 TERM=3Dvt102
 0: 0/vmlinux
 1: root=3D/dev/ram
 2: initrd=3D0/ramdisk
 3: console=3DttyS0
 4: TERM=3Dvt102

Edit which field?
(or 'b' to boot with this command line)? 0
0/vmlinux32
Current command line:
0/vmlinux32 root=3D/dev/ram initrd=3D0/ramdisk console=3DttyS0 TERM=3Dvt102
 0: 0/vmlinux32
 1: root=3D/dev/ram
 2: initrd=3D0/ramdisk
 3: console=3DttyS0
 4: TERM=3Dvt102

Edit which field?
(or 'b' to boot with this command line)? b

Command line for kernel: 'root=3D/dev/ram console=3DttyS0 TERM=3Dvt102'
Selected kernel: /vmlinux32 from partition 0
Selected ramdisk: /ramdisk from partition 0
ELF32 executable
Entry 00100000 first 00100000 n 6
Segment 0 load 00100000 size 1618208 mediaptr 0x1000
Segment 1 load 0028c000 size 287728 mediaptr 0x18d000
Segment 2 load 002d4000 size 379072 mediaptr 0x1d4000
Segment 3 load 00334000 size 8192 mediaptr 0x231000
Segment 4 load 00338000 size 32768 mediaptr 0x233000
Segment 5 load 003750e8 size 83184 mediaptr 0x23b0e8
Loading ramdisk 1946807 bytes @ 0fe14000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

FLT  CBFB


And this is where it hangs.

Thanks
Jonathan Pulfer


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Subject: Re: [parisc-linux] kdb_v21 branch updated to -pa26, and kallsyms cross-compile
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> 
> Yes, exactly the same results. There's some thing different about the
> binary vmlinux thatmay, or may not, be relevant. The kdb one seems to
> have fewer segments than a non-kdb one:
> 

Yes. Something is broke.

I just recently cleaned up my src trees and rebuilt a
kdb enabled kernel and I get the same result on my 712/60.

/me puts thinking cap on...

The _interesting_ thing would be to diff the System.map's
for kdb-on vs. kdb-off to see is anything is explicitly being
removed.

I'll start a build going.

c.




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Xref: news.gmane.org gmane.linux.ports.parisc:14939

Hi Dave,

It seems to be well comited in last cvs update this morming I got in
src/gcc/gcc/fixinc/inclhack.def:
...
/*
 * __thread is now a keyword.
 */
fix = {
    hackname  = thread_keyword;
    files     = "pthread.h";
    files     = "bits/sigthread.h";
    select    = " __thread([,)])";
    c_fix     = format;
    c_fix_arg = " __thr%1";

    test_text =
        "extern int pthread_create (pthread_t *__restrict __thread,\n"
        "extern int pthread_kill (pthread_t __thread, int __signo);\n"
        "extern int pthread_cancel (pthread_t __thread);";
};
...

But do not seems to be applied as I got the same error?

What do I wrong or forget to do?

Thanks for add help,
    Joel


Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> > In file included from ../include/pthread.h:1,
> >                  from
> ../linuxthreads/sysdeps/pthread/bits/libc-lock.h:23,
> >                  from ../sysdeps/generic/ldsodefs.h:34,
> >                  from ../sysdeps/unix/sysv/linux/ldsodefs.h:25,
> >                  from ../sysdeps/unix/sysv/linux/init-first.c:32:
> > ../linuxthreads/sysdeps/pthread/pthread.h:163: parse error before
> "__thread"
> 
> See <http://gcc.gnu.org/ml/gcc-patches/2002-05/msg01780.html> for fix.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc.ca
> National Research Council of Canada              (613) 990-0752 (FAX:
> 952-6605)
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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> It seems to be well comited in last cvs update this morming I got in
> src/gcc/gcc/fixinc/inclhack.def:
> ...
> /*
>  * __thread is now a keyword.
>  */

> But do not seems to be applied as I got the same error?
> 
> What do I wrong or forget to do?

You should see the following in your build output:

Applying thread_keyword           to pthread.h
Fixed:  pthread.h

A fixed pthread.h should appear in the {build}/gcc/include directory.
This seems to work ok for me in a native hppa-linux build.  However,
it appears that you are trying to do a cross build.  If the header
is not being fixed, you will need to examine your build log carefully
to determine why the fix isn't being done or doesn't work.

Dave
--
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: [parisc-linux] hppa gdb fix for printing function returns
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package: gdb
version: 5.2.cvs20020401-6

The attached patch fixes gdb on hppa so that it will print function
returns (e.g. "print foo(6)"), where previously it would crash the
inferior with protection faults.

There are still some problems, for example, print strlen("foo") will
fail.  To evaluate that, gdb has first got to get the inferior to call
malloc so there is somewhere to store the string.  For a dynamically
linked program, gdb is finding a symbol 'malloc' in ld-2.2.5.so and
trying to call that, with a bogus dp value.  If you link the program
statically, gdb finds the right 'malloc' to call and it works.

Richard



diff -ur gdb-5.2.cvs20020401.ori/gdb/pa-linux-tdep.c gdb-5.2.cvs20020401/gdb/pa-linux-tdep.c
--- gdb-5.2.cvs20020401.ori/gdb/pa-linux-tdep.c	Fri May 31 17:57:21 2002
+++ gdb-5.2.cvs20020401/gdb/pa-linux-tdep.c	Fri May 31 18:25:22 2002
@@ -38,8 +38,8 @@
 static void
 pa_write_pc (CORE_ADDR pc, ptid_t ptid)
 {
-  write_register_pid (PA_PCOQ_HEAD_REGNUM, pc, ptid);
-  write_register_pid (PA_PCOQ_TAIL_REGNUM, pc + 4, ptid);
+  write_register_pid (PA_PCOQ_HEAD_REGNUM, pc | 3, ptid);
+  write_register_pid (PA_PCOQ_TAIL_REGNUM, (pc + 4) | 3, ptid);
 }
 
 static CORE_ADDR
@@ -426,8 +426,8 @@
   /* We can not modify the instruction address queues directly, so we start
      up the inferior and execute a couple of instructions to set them so
      that they point to the call dummy in the stack.  */
-  pcoqh = read_register (PA_PCOQ_HEAD_REGNUM);
-  pcoqt = read_register (PA_PCOQ_TAIL_REGNUM);
+  pcoqh = read_register (PA_PCOQ_HEAD_REGNUM) & ~3;
+  pcoqt = read_register (PA_PCOQ_TAIL_REGNUM) & ~3;
 
   if (target_read_memory (pcoqh, buf, 4) != 0)
     error ("Couldn't modify instruction address queue\n");
@@ -547,8 +547,8 @@
   /* We can not modify the instruction address queues directly, so we start
      up the inferior and execute a couple of instructions to set them so
      that they point to the call dummy in the stack.  */
-  pcoqh = read_register (PA_PCOQ_HEAD_REGNUM);
-  pcoqt = read_register (PA_PCOQ_TAIL_REGNUM);
+  pcoqh = read_register (PA_PCOQ_HEAD_REGNUM) & ~3;
+  pcoqt = read_register (PA_PCOQ_TAIL_REGNUM) & ~3;
 
   if (target_read_memory (pcoqh, buf, 4) != 0)
     error ("Couldn't modify instruction address queue\n");
diff -ur gdb-5.2.cvs20020401.ori/gdb/pa-tdep.c gdb-5.2.cvs20020401/gdb/pa-tdep.c
--- gdb-5.2.cvs20020401.ori/gdb/pa-tdep.c	Fri May 31 17:57:21 2002
+++ gdb-5.2.cvs20020401/gdb/pa-tdep.c	Fri May 31 01:01:42 2002
@@ -2098,6 +2098,7 @@
   int reg_size = REGISTER_SIZE;
 
   fp = FRAME_FP (frame);
+  FRAME_INIT_SAVED_REGS(frame);
   fsr = frame->saved_regs;
 
 #ifndef NO_PC_SPACE_QUEUE_RESTORE




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Jonathan Pulfer wrote:
> FLT  CBFB

Ouch. I think that's an HPMC.

IMHO, the problem is not worth chasing at this point though.
IIRC, Richard recently posted newer ones based on 2.4.18-pa29 or -pa30.
And ESIEE (thanks Thibaut!) have (or will) post newer netinstall ISO's.

grant



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On Fri, May 31, 2002 at 12:12:43PM -0600, Grant Grundler wrote:
> Jonathan Pulfer wrote:
> > FLT  CBFB
> 
> Ouch. I think that's an HPMC.
> 
> IMHO, the problem is not worth chasing at this point though.
> IIRC, Richard recently posted newer ones based on 2.4.18-pa29 or -pa30.
> And ESIEE (thanks Thibaut!) have (or will) post newer netinstall ISO's.

The one I posted was 2.4.17-pa32 based, but had latest versions of woody
packages.

Thibaut is building ISOs with newer kernels.  Check

ftp.parisc-linux.org/cd-images/testing/palinux-2.4.18-pa26-20020526-netinst.iso

for example.  Thibaut may have newer ones on the ESIEE site.

Richard




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Le vendredi 31 mai 2002, =E0 09:42 , Richard Hirst a =E9crit :

> On Fri, May 31, 2002 at 12:12:43PM -0600, Grant Grundler wrote:
>> Jonathan Pulfer wrote:
>>> FLT  CBFB
>>
>> Ouch. I think that's an HPMC.
>>
>> IMHO, the problem is not worth chasing at this point though.
>> IIRC, Richard recently posted newer ones based on 2.4.18-pa29 or =
-pa30.
>> And ESIEE (thanks Thibaut!) have (or will) post newer netinstall =
ISO's.
>
> The one I posted was 2.4.17-pa32 based, but had latest versions of =
woody
> packages.
>
> Thibaut is building ISOs with newer kernels.  Check
>
> ftp.parisc-linux.org/cd-
> images/testing/palinux-2.4.18-pa26-20020526-netinst.iso
>
> for example.  Thibaut may have newer ones on the ESIEE site.
Yes there are:
http://pateam.esiee.fr/cd-images/testing/
and for lifimages:
http://pateam.esiee.fr/cd-images/lifimages/

The -pa32 ISO is out, and I'm currently building one with PDC support=20
enabled.

enjoy !


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Subject: [parisc-linux] 2.4.18-pa32 with PDC console support ISO
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Hi Robert !

There is a netinst ISO with PDC console support enabled available here:
http://pateam.esiee.fr/cd-
images/testing/palinux-2.4.18-pa32-PDC-20020531-netinst.iso

and the corresponding lifimage here:
http://pateam.esiee.fr/cd-
images/lifimages/lifimage-2.4.18-pa32-PDC-20020531.gz

I hope that'll be useful.

Though I haven't tested these AT ALL ;)

Enjoy,


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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On Wed, 29 May 2002, Grant Grundler wrote:

> Jeremy Drake wrote:
> > tried to bend the pins so that they didn't short 
> > anything, and one broke off.  Both onboard USB ports haven't worked since.  
> 
> Ok. So broken physically but not eletrically.
> Not sure that should cause any problems.
I pulled the drive and plugged it into an identical (but not broken) 
J5000.  The box HPMC'd when doing an apt-get update.  Since this box was 
on graphics console, I got a large amount of hex numbers spewed to the 
screen.  So, at least we can rule out any damage to the box as the cause 
of this. 

-- 
Here I am, fifty-eight, and I still don't know what I want to be when
I grow up.
		-- Peter Drucker




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Is there, or are there any plans to make, a way to access HP-UX 
partitions?  When I plug my HP-UX drive into my parisc linux box, I can't 
see any partitions, let alone a file system.  This is no urgent matter, 
just a curiosity...

-- 
The real trouble with reality is that there's no background music.




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On Fri, May 31, 2002 at 11:46:15PM -0700, Jeremy Drake wrote:
> Is there, or are there any plans to make, a way to access HP-UX 
> partitions?  When I plug my HP-UX drive into my parisc linux box, I can't 
> see any partitions, let alone a file system.  This is no urgent matter, 
> just a curiosity...

it's vxfs (basically).  someone who was motivated enough could try
munging freevxfs to make it work...

-- 
Revolutions do not require corporate support.



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John David Anglin wrote:
>>It seems to be well comited in last cvs update this morming I got in
>>src/gcc/gcc/fixinc/inclhack.def:
>>...
>>/*
>> * __thread is now a keyword.
>> */
> 
> 
>>But do not seems to be applied as I got the same error?
>>
>>What do I wrong or forget to do?
> 
> 
> You should see the following in your build output:
> 
> Applying thread_keyword           to pthread.h
> Fixed:  pthread.h
> 
> A fixed pthread.h should appear in the {build}/gcc/include directory.
> This seems to work ok for me in a native hppa-linux build.  However,
> it appears that you are trying to do a cross build.

AFAIK gcc bootstrap does not work for hppa?

> If the header
> is not being fixed, you will need to examine your build log carefully
> to determine why the fix isn't being done or doesn't work.
> 

I will have a detailed look but as newbee in gcc stuff it will take a time.

Thank again for attention and help,
	Joel





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> I will have a detailed look but as newbee in gcc stuff it will take a time.

If you manually execute the failing compilation command changing '-c'
to '-E', this will generate the cpp processed output for the compilation
source file.  Inspection of this output should allow you to see exactly
which include files have been loaded and the result of all macro expansions.

There may be a problem with the include hack or possibly an unfixed
version of the pthread.h header is being loaded.  Gcc puts fixed include
directories in ${prefix}/lib/${target}/${gcc_version}/include.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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I have an Appolo 715/50 with debian installed on it.  I have upgraded to 
the 2.4.18 kernel but when the kernel boots, the STI display goes blank.  
Everything works except I can't see the image.  When I press reset, the 
firmware comes up and I can see the output from the linux kernel on the 
screen still.

If someone can help it would be much appreciated.  The 2.4.9 kernel has 
some kind of problem with the framebuffer so I can't run X.

John.






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Jeremy Drake wrote:
> So, at least we can rule out any damage to the box as the cause of this. 

Yup - thanks for trying that.

Offhand, Here are the differences I'm aware of between J5k and c3k:
o 2-CPU vs 1
o cache is 4-way associative vs 1-way (Same PA8500 CPU though!)
o J5K requires newer rev CPU (some SMP-related bugs fixed)
o Same PDC, but probably initializes a few things differently
o Though IO subsystem is identical chip set, J5k has more PCI busses
  and more slots.

Since dirty cache writeback can be sensitive to how busy the system is,
it's possible the HPMC is caused by a similar problem to what we saw
on PA8700 systems. You might try building a kernel with
"ioc_needs_fdc" forced true in arch/parisc/kernel/sba_iommu.c.
If it avoids the HPMC (but we still see other hangs), then it's
a clue we don't have caching working right for that CPU setup.

hth,
grant



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Subject: Re: [parisc-linux] Patch to enable IrDA :-)
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Jochen Friedrich wrote:
> Hi,
> 
> this tiny patch enables the usage of IrDA dongles on the PA-RISC :-)

No one has committed this yet since Alan Cox suggested:

| With these ifdefs for ARM and parisc maybe
| 
|        arg = IRDA_MODEM_BITS;
| 
| and sticking that in the header would be good ?

I took a quick look.

>  #ifdef TIOCM_OUT2 /* Not defined for ARM */
>         arg = TIOCM_OUT2;
> +#endif

This comment is wrong:
include/asm-arm/termios.h:#define TIOCM_OUT2    0x4000

Seems every arch defines this now in include/asm-*/termios.h.

> +#ifdef CONFIG_PARISC  /* PA-RISC uses OUT1 as hardware flow control bit 
> */
> +       arg |= TIOCM_OUT1;
>  #endif

I'v re-hacked this along the lines that Alan suggested.
But given the comment was wrong, thoughts?

I'm not able to test this.
Someone else will have to test and commit.

grant

Index: include/asm-i386/termios.h
===================================================================
RCS file: /var/cvs/linux/include/asm-i386/termios.h,v
retrieving revision 1.3
diff -u -p -r1.3 termios.h
--- include/asm-i386/termios.h	2001/07/05 21:38:41	1.3
+++ include/asm-i386/termios.h	2002/06/02 17:05:03
@@ -37,6 +37,8 @@ struct termio {
 #define TIOCM_OUT2	0x4000
 #define TIOCM_LOOP	0x8000
 
+#define TIOCM_MODEM_BITS	TIOCM_OUT2	/* IRDA support */
+
 /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
 
 /* line disciplines */
Index: include/asm-parisc/termios.h
===================================================================
RCS file: /var/cvs/linux/include/asm-parisc/termios.h,v
retrieving revision 1.6
diff -u -p -r1.6 termios.h
--- include/asm-parisc/termios.h	2001/07/11 17:20:32	1.6
+++ include/asm-parisc/termios.h	2002/06/02 17:05:03
@@ -37,6 +37,9 @@ struct termio {
 #define TIOCM_OUT2	0x4000
 #define TIOCM_LOOP	0x8000
 
+/* IRDA support - PA-RISC uses OUT1 as hardware flow control bit. */
+#define TIOCM_MODEM_BITS        (TIOCM_OUT2 | TIOCM_OUT1)
+
 /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
 
 /* line disciplines */
Index: arch/parisc/config.in
===================================================================
RCS file: /var/cvs/linux/arch/parisc/config.in,v
retrieving revision 1.39
diff -u -p -r1.39 config.in
--- arch/parisc/config.in	2001/11/08 21:17:52	1.39
+++ arch/parisc/config.in	2002/06/02 17:05:03
@@ -128,6 +128,8 @@ if [ "$CONFIG_SCSI" != "n" ]; then
 fi
 endmenu
 
+source net/irda/Config.in
+
 if [ "$CONFIG_NET" = "y" ]; then
    mainmenu_option next_comment
    comment 'Network device support'
Index: drivers/net/irda/irtty.c
===================================================================
RCS file: /var/cvs/linux/drivers/net/irda/irtty.c,v
retrieving revision 1.8
diff -u -p -r1.8 irtty.c
--- drivers/net/irda/irtty.c	2001/11/09 23:36:06	1.8
+++ drivers/net/irda/irtty.c	2002/06/02 17:05:03
@@ -760,14 +760,11 @@ static int irtty_set_dtr_rts(struct net_
 	struct irtty_cb *self;
 	struct tty_struct *tty;
 	mm_segment_t fs;
-	int arg = 0;
+	int arg = TIOCM_MODEM_BITS;
 
 	self = (struct irtty_cb *) dev->priv;
 	tty = self->tty;
 
-#ifdef TIOCM_OUT2 /* Not defined for ARM */
-	arg = TIOCM_OUT2;
-#endif
 	if (rts)
 		arg |= TIOCM_RTS;
 	if (dtr)



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On Sun, 2 Jun 2002, Grant Grundler wrote:

> If it avoids the HPMC (but we still see other hangs), then it's
> a clue we don't have caching working right for that CPU setup.
What "other hangs" would I expect to see?  This thing hangs periodically 
anyway on SMP, and doesn't consistently give the HPMC.  Sometimes it just 
hangs.  I'm building with the change you mentioned now -- we'll see what 
happens...

OK.  No HPMC, but a new and interesting message.  The serial console 
hangs, as always.

Fetched 2696kB in 26s (103kB/s)
apt-get(263): unaligned access to 0x403ce08c at ip=0x4005e4f7
Reading Package

But, the LCD screen has a new message for me: 

INI 3001: SYS BD
PDH control init

If you think it would help, I could pay the box a visit today and get 
whatever "ser pim" or "ser pim toc" I can...


> > hth,
> grant
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 
Novinson's Revolutionary Discovery:
	When comes the revolution, things will be different --
	not better, just different.




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> I have an Appolo 715/50 with debian installed on it.  I have upgraded to 
> the 2.4.18 kernel but when the kernel boots, the STI display goes blank.  
> Everything works except I can't see the image.  When I press reset, the 
> firmware comes up and I can see the output from the linux kernel on the 
> screen still.
> 
> If someone can help it would be much appreciated.  The 2.4.9 kernel has 
> some kind of problem with the framebuffer so I can't run X.
> 
> John.
>

I would recommend getting the latest kernel source from 
cvs.paris-linux.org and compiling a new kernel with STI 
fbdev enabled. 

http://cvs.parisc-linux.org/

Make sure that the following is in your ~/.cvsrc
cvs -z3 -q
diff -uNp
update -Pd
remove -f

And then...

export  CVSROOT=:pserver:anonymous@cvs.parisc-linux.org:/var/cvs  
cvs co linux palo
cd linux
make oldconfig 
make menuconfig (enable fbdev and all the goodies you need)
... munge ./palo/Makefile for any custom parameters to your kernel
make dep
make palo

Then boot ./palo/lifimage :)

c.




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I am still interested in working on this.  I have some preliminary
patches that I could update to CVS head, but they really do not get
very far.  During OLS I/We plan on working on this driver some more.  I 
believe the victim system is already present in Ottawa now :)

Thanks,

- Ryan


On Thu, 2002-05-30 at 02:14, Richard Hirst wrote:
> On Wed, May 29, 2002 at 11:20:16PM +0200, Andy Walker wrote:
> > Hi folks,
> > 
> > Just picked up a free 735/99 today, so suddenly I've become interested
> > in the status of the Outfield 53c720 driver. Has there been any progress
> > or is there just no information available? I'd be happy to test patches -
> > or even dive into the code myself, but without docs that sounds a little
> > pointless.
> 
> Specs for Outfield are available now, look for hardball_ers.pdf on the
> web site.
> 
> Other 53c720 interfaces (e.g. bluefish) are supported via the
> ncr53c8xx.c driver, but that doesn't work for outfield because the 735
> is not cache coherent.  My next idea was to add basic 53c720 support to
> the 53c700 driver, as that works older hardware.  Ryan was interested in
> looking at that a while back, but I don't know what happened.  My excuse
> is that I don't have 735 h/w to test on so it is no fun - but that's a
> poor excuse really as I could use my bluefish card to get 53c700 working
> with 53c720.
> 
> 53c700.c would drive the 53c720 chip in 53c700 mode, so would be
> relatively low performance (more interrupts than you would need if you
> made the most of the 53c720 features), and it would be 8 bit only.
> Those issues could perhaps be fixed in time, and it would be better than
> nothing, anyway.
> 
> Richard
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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Jeremy Drake wrote:
> What "other hangs" would I expect to see?  This thing hangs periodically 
> anyway on SMP, and doesn't consistently give the HPMC.
> Sometimes it just hangs.

Well, we don't really know anything about hungs you've been seeing or if
it's the same problem each time. I'm comfortable the SMP kernel works
with apt-get since I'm not able to reproduce the problem with either of
the two SMP machines I have (PA8500 and PA8700).

> I'm building with the change you mentioned now -- we'll see what 
> happens...
> 
> OK.  No HPMC, but a new and interesting message.  The serial console 
> hangs, as always.
...
> But, the LCD screen has a new message for me: 
> 
> INI 3001: SYS BD
> PDH control init

hmmm...that might just be an intermediate state for HPMC.
This seems to be part of the reset sequence.

> If you think it would help, I could pay the box a visit today and get 
> whatever "ser pim" or "ser pim toc" I can...

nah...get "ser pim" tomorrow. But I may not be able to look at it until
the end of the week. Try repeating with the kluged kernel a few times and
see if it now always gets the same symptom (ie no HPMC). If it doesn't HPMC,
most likely you need to run UP kernels until someone who understands
cache handling and J5000 a bit can look at it.

grant



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This is a multi-part message in MIME format.
--------------7440234E333CE0312712558D
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	Hi
Can someone can explain what is the difference between the
"hpa" of a scsi card (pci or not) and the "base" in the structure Scsi_Host ?
....
    /* These parameters should be set by the detect routine */
    unsigned long base;
    unsigned long io_port;
    unsigned char n_io_port;
    unsigned char dma_channel;
    unsigned int  irq; 
....

I'm pretty sure that it is the same, can someone say if it is wrong or not ?

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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On Mon, Jun 03, 2002 at 01:04:10PM +0200, Bruno Vidal wrote:
> 	Hi
> Can someone can explain what is the difference between the
> "hpa" of a scsi card (pci or not) and the "base" in the structure Scsi_Host ?
> ....
>     /* These parameters should be set by the detect routine */
>     unsigned long base;
>     unsigned long io_port;
>     unsigned char n_io_port;
>     unsigned char dma_channel;
>     unsigned int  irq; 
> ....
> 
> I'm pretty sure that it is the same, can someone say if it is wrong or not ?

I'm no expert in the SCSI layer, but it could be that base is the base
of the _chip_ and hpa is the base of the _device_.  For example, the
hpa of the serial device is 0xffd05000 but the chip itself is at 0xffd05800.
According to drivers/scsi/lasi700.c:

        unsigned long base = dev->hpa + LASI_SCSI_CORE_OFFSET;
[...]
        hostdata->base = base;

so base != hpa.  Sorry...

-- 
Revolutions do not require corporate support.



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Dave,

Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> > It seems to be well comited in last cvs update this morming I got in
> > src/gcc/gcc/fixinc/inclhack.def:
> > ...
> > /*
> >  * __thread is now a keyword.
> >  */
> 
> > But do not seems to be applied as I got the same error?
> > 
> > What do I wrong or forget to do?
> 
> You should see the following in your build output:
> 
> Applying thread_keyword           to pthread.h
> Fixed:  pthread.h

It stand well in my log files and here is the result:
in {build}/gcc/include/pthread.h
...
/* Create a thread with given attributes ATTR (or default attributes
   if ATTR is NULL), and call function START_ROUTINE with given
   arguments ARG.  */
extern int pthread_create (pthread_t *__restrict __thr,
                           __const pthread_attr_t *__restrict __attr,
                           void *(*__start_routine) (void *),
                           void *__restrict __arg) __THROW;
...

Which seems to be the desired patch?

Hmm... In what changing parameter name from __thread to __thr in such function
prototype does matter (exepted if there is a border effect with some #define
else where)? [afaik this name doe not matter for a C compiler?]

So I will have to go further to analyse precompile results.

See you next,
    Joel


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> /* Create a thread with given attributes ATTR (or default attributes
>    if ATTR is NULL), and call function START_ROUTINE with given
>    arguments ARG.  */
> extern int pthread_create (pthread_t *__restrict __thr,
>                            __const pthread_attr_t *__restrict __attr,
>                            void *(*__start_routine) (void *),
>                            void *__restrict __arg) __THROW;
> ...
> 
> Which seems to be the desired patch?

Yes.

> Hmm... In what changing parameter name from __thread to __thr in such function
> prototype does matter (exepted if there is a border effect with some #define
> else where)? [afaik this name doe not matter for a C compiler?]

Changing the name doesn't matter in a C function prototype.  The bug in the
system header is that __thread is now a reserved language keyword.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> > I will have a detailed look but as newbee in gcc stuff it will take a
> time.
> 
> If you manually execute the failing compilation command changing '-c'
> to '-E', this will generate the cpp processed output for the
> compilation
> source file.

Hey I also had to do it when I tried and succed to port f2c with bcc 31 (ten
years ago already ;)

>  Inspection of this output should allow you to see exactly
> which include files have been loaded and the result of all macro
> expansions.

and here is the only pthread_create expansion I found in the output file:
# 163 "../linuxthreads/sysdeps/pthread/pthread.h"
extern int pthread_create (pthread_t *__restrict __thread,
                           __const pthread_attr_t *__restrict __attr,
                           void *(*__start_routine) (void *),
                           void *__restrict __arg) ;

So I will change manually __thread by __thr and see.

I also find glibc cvs and co and the new version of 

${src}/glibc/linuxthreads/sysdeps/pthread/pthread.h replace also __thread by
__threadp. Curious?

Joel

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Dave,

I really have no chance with this b2000:
I broken first my install and now it makes a HPMC in the middle of binutils
build and the pim info are not clear :((

So I will have to ask to HP to analyse those pim and eventually repare it.
(I hoppe we have a maintenance contract for this server)

Joel

Quoting joel.soete@freebel.net:

> Dave,
> 
> Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:
> 
> > > It seems to be well comited in last cvs update this morming I got
> in
> > > src/gcc/gcc/fixinc/inclhack.def:
> > > ...
> > > /*
> > >  * __thread is now a keyword.
> > >  */
> > 
> > > But do not seems to be applied as I got the same error?
> > > 
> > > What do I wrong or forget to do?
> > 
> > You should see the following in your build output:
> > 
> > Applying thread_keyword           to pthread.h
> > Fixed:  pthread.h
> 
> It stand well in my log files and here is the result:
> in {build}/gcc/include/pthread.h
> ...
> /* Create a thread with given attributes ATTR (or default attributes
>    if ATTR is NULL), and call function START_ROUTINE with given
>    arguments ARG.  */
> extern int pthread_create (pthread_t *__restrict __thr,
>                            __const pthread_attr_t *__restrict __attr,
>                            void *(*__start_routine) (void *),
>                            void *__restrict __arg) __THROW;
> ...
> 
> Which seems to be the desired patch?
> 
> Hmm... In what changing parameter name from __thread to __thr in such
> function
> prototype does matter (exepted if there is a border effect with some
> #define
> else where)? [afaik this name doe not matter for a C compiler?]
> 
> So I will have to go further to analyse precompile results.
> 
> See you next,
>     Joel
> 
> 
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> 
> 


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> I really have no chance with this b2000:
> I broken first my install and now it makes a HPMC in the middle of binutils
> build and the pim info are not clear :((

I'd try a new kernel first.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Bruno Vidal wrote:
> Can someone can explain what is the difference between the
> "hpa" of a scsi card (pci or not) and the "base" in the structure Scsi_Host ?

hpa and base are "handles" for different views of HW.
"hpa" doesn't have to be a physical address (though it normally is).
On V-class, the hpa is bogus and just a reference to particular IO device.
base could be "adjusted" (like the LASI example) or "F-extended"
for 64-bit or whatever the platform code thinks the driver needs
to reference the device properly.

But in practice, for the platforms we support to date, I think you
can compare them (or compare most of the bits) to determine
if it's the same device.

grant



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Xref: news.gmane.org gmane.linux.ports.parisc:14966

On Sun, 2 Jun 2002, Jeremy Drake wrote:

> On Sun, 2 Jun 2002, Grant Grundler wrote:
> 
> > If it avoids the HPMC (but we still see other hangs), then it's
> > a clue we don't have caching working right for that CPU setup.

> OK.  No HPMC, but a new and interesting message.  The serial console 
> hangs, as always.
> 
> Fetched 2696kB in 26s (103kB/s)
> apt-get(263): unaligned access to 0x403ce08c at ip=0x4005e4f7
> Reading Package
> 
> But, the LCD screen has a new message for me: 
> 
> INI 3001: SYS BD
> PDH control init
> 
> If you think it would help, I could pay the box a visit today and get 
> whatever "ser pim" or "ser pim toc" I can...

Here it is...  BTW, maybe you could explain how to interpret these, so I 
don't have to send you all of this...

ser pim

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp = 
  Tue May  28 23:38:36 GMT 2002    (20:02:05:28:23:38:36)

HPMC Chassis Codes = 2cbf0  2500b  2cbf1  2cbfc  

General Registers 0 - 31
00-03   0000000000000000  000000095bf6dde5  0000000000019bf0  00000000f4004000
04-07   0000000000001d58  0000000000002710  ffffffffffffffce  0000000000002000
08-11   0000000044657266  fffffffff4004000  000000000000000a  fffffff0f0000834
12-15   0000000000000000  ffffffffffffffff  0000000000000001  fffffff0f0400004
16-19   fffffff0f00008c4  fffffff0f000017c  fffffff0f0000174  00000000000019fc
20-23   00000000f4004014  00000000000001f4  0000000000019bf0  ffffffffffffffff
24-27   ffffffffffffffff  0000000000000000  000000fa00000000  fffffff0f0412000
28-31   0000000000035b60  ffffffffffffffff  0000000000001e90  0000000000002710

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000004  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000006
12-15   0000000000000000  0000000000000000  000000f0f0003800  0000000000000000
16-19   000000095d2ccf91  0000000000000000  0000000000019bf4  000000000e80103d
20-23   00000000a607ffd0  c000000001004014  000000ff0000ff08  8800000000000000
24-27   0000000055555555  0000000055555555  0000000000041020  00000000f0412000
28-31   0000000055555555  0000000055555555  00000000f04088d8  0000000000000020
Space Registers 0 - 7

00-03   00000000          c9af9dd0          00000000          00000000
04-07   00000000          00000000          00000000          00000000

<Press any key to continue (q to quit)> 

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000019bf8
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030103b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000fff4004014
System Requestor Address     = 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000  0000000000000000
04-07   2ffa200000000001  000000011015fa8c  1036505000000000  00000001f0400004
08-11   1036505000000002  ffffffff0000000a  0000000100000000  1041fdd31035d020
12-15   ffffffff000000ff  103a4000101482f4  103a4000ffff99ef  1115070010110264
16-19   2ffa200011150000  0000000000000002  000000001035d010  1035981010358810
20-23   1035901010359810  103598102ffa2000  1115000000000000  0000000200000000
24-27   5555555555555555  5555555555555555  5555555555555555  5555555555555555
28-31   3031323334353637  383961621014859c  6768696a6b6c6d6e  6f70717273747576

<Press any key to continue (q to quit)> 


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xc381141008000000
Available Memory             = 0x0000000020000000
CPU Diagnose Register 2      = 0x02010000ac802000
CPU Status Register 0        = 0x2040000000000000
CPU Status Register 1        = 0x8002000000000000
SADD LOG                     = 0x0221fd0050210df0
Read Short LOG               = 0xc18080fff4004014
ERROR_STATUS                 = 0x0000000000100010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0x37dd3fa153c23ee1
RUN_DATA_LOW                 = 0xe840d00037de3f01
RUN_CTRL                     = 0x0000021c00001418
RUN_ADDR                     = 0xc13ff0f0f003ce50
System Responder Path        = 0x00ffffff0a000f01


HPMC PIM Analysis Information:

Timestamp = 
  Tue May  28 23:38:36 GMT 2002    (20:02:05:28:23:38:36)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

A Data I/O Fetch Timeout occurred while CPU 0 was
requesting information from a device at the path 10/0/15/1 (built-in PCI device).


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not log
any additional information about the HPMC.

<Press any key to continue (q to quit)> 

-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000


-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  0000000040000000  000000004000dc93  00000000faf00800
04-07   0000000040000000  0000000000000008  0000000040026758  0000000000000000
08-11   0000000000000000  00000000faf00798  0000000000000000  0000000000000000
12-15   00000000faf00890  0000000040026612  00000000faf00300  0000000000000000
16-19   0000000040000000  0000000010408000  0000000000000000  0000000040000000
20-23   00000000faf0089f  00000000faf006a0  000000001031a8b0  00000000faf00798
24-27   0000000000000008  0000000011150408  000000000000000f  000000001015fbb4
28-31   0000000000028000  0000000011150380  0000000011150640  000000004000f923

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000002  0000000000000000  00000000000000c0  0000000000000010
12-15   0000000000000000  0000000000000000  0000000000106000  00000000ff800000
16-19   000000110d4ad99d  0000000000000000  00000000101076c0  000000002f301221
20-23   0000000010340004  0000000054150408  000000000004000e  0000000000000000
24-27   0000000000366000  00000000003bb000  0000000000044021  00000000f0412000
28-31   0000000055555555  0000000055555555  0000000011150000  0000000010410000
Space Registers 0 - 7

00-03   00000001          00000001          00000000          00000001
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x00000000101076c4
CPU State                    = 0x9e000001


<Press any key to continue (q to quit)> 

-----------------  Processor 1 HPMC Information ------------------

Timestamp = 
  Sun Jun  2 19:40:32 GMT 2002    (20:02:06:02:19:40:32)

HPMC Chassis Codes = 2cbf0  2510b  2cbf4  2cbfc  

General Registers 0 - 31
00-03   0000000000000000  fffffff0f009d000  fffffff0f0068d78  0000000000000000
04-07   7f00000000000000  feffffffffffffff  000000000031b6f8  0000000000000008
08-11   fffffffffed30300  fffffffffed22200  0100000000000000  000000000002cb90
12-15   00000000000f4000  000000000000c800  fffffffffed40000  fffffffffed22210
16-19   4000000000000000  0000000000000002  00000000f000016c  fffffffffee003f9
20-23   fffffffffee003fb  0000000000000087  fffffffffee003f8  5871000000000000
24-27   7f00000000000000  fffffff0f0071eb8  fffffffffee003fa  fffffff0f0412000
28-31   0000000000000000  fffffffffee003fb  000000000031b7d8  fffffffffee00000

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   000000000000010c  0000000000000000  00000000000000c0  0000000000000039
12-15   0000000000000000  0000000000000000  0000000000106000  00000000ff000000
16-19   000000124c7c7456  000000003ffffff0  fffffff0f0037354  000000000e80103a
20-23   00000000ae07fffb  c0000000802003fb  0000000008000108  0000000080000000
24-27   0000000000336000  000000001f7e3000  0000000000044021  00000000f0412000
28-31   0000000055555555  0000000055555555  00000000100dc000  0000000011111111
Space Registers 0 - 7

00-03   00000000          00000086          00000000          00000086
04-07   00000000          00000000          00000000          00000000

<Press any key to continue (q to quit)> 

IIA Space                    = 0x000000003ffffff0
IIA Offset                   = 0xfffffff0f0037358
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030103b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000fffee003fb
System Requestor Address     = 0xfffffffffffa2000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000  0000000000000000
04-07   2ffe200000000001  000000011015fa58  1033505000000000  00000001f0400004
08-11   1033505000000002  ffffffff0000000a  000000010000003f  103dfdd300000040
12-15   00000000103caf14  103caf4010148768  00000000ffff9b5f  100d470000000000
16-19   2ffe2000100d4000  0000000000000002  000000001032d010  1032981010328810
20-23   1032901010329810  103298102ffe2000  cccccccd51eb874f  0000000333333334
24-27   b38cf9b100000450  5555555555555555  5555555555555555  5555555555555555
28-31   3031323334353637  3839616210148a10  6768696a6b6c6d6e  6f70717273747576

<Press any key to continue (q to quit)> 


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81041008000000
Available Memory             = 0x0000000020000000
CPU Diagnose Register 2      = 0x0201010000000004
CPU Status Register 0        = 0x2440c24000000000
CPU Status Register 1        = 0x800a000000000000
SADD LOG                     = 0xc11ff0f0f0002b50
Read Short LOG               = 0xc18100fffee003fb
ERROR_STATUS                 = 0x0000000000100010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0xe840c002000014bc
RUN_DATA_LOW                 = 0x379c00680f9a20dc
RUN_CTRL                     = 0x0000005c00001658
RUN_ADDR                     = 0xc13ff0f0f0002b50
System Responder Path        = 0x00ffff0a000e0101


HPMC PIM Analysis Information:

Timestamp = 
  Sun Jun  2 19:40:32 GMT 2002    (20:02:06:02:19:40:32)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

An Instruction I/O Fetch and Data I/O Fetch Timeout occurred while CPU 1 was
requesting information from a device at the path 10/0/14/1/1 (built-in PCI device).


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not log
any additional information about the HPMC.

<Press any key to continue (q to quit)> 

-----------------  Processor 1 LPMC Information ------------------

Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000


-----------------  Processor 1 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  000000001035eee0  00000000101009dc  0000000000000000
04-07   0000000000366000  00000000f0400008  00000000000000fa  00000000f0002f68
08-11   0000000000000000  0000000000000000  000000000004000e  00000000103a7464
12-15   00000000000000f2  0000000000000001  0000000000000001  00000000000000f3
16-19   0000000002020202  0000000000000002  00000000f000016c  0000000011158000
20-23   0000000000000000  00000000103382b0  00000000103597c4  0000000000000000
24-27   00000000103598a0  0000000000000032  0000000000000019  0000000010338010
28-31   0000000000000000  0000000000000010  00000000111586c0  00000000103598a0

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  00000000000000c0  000000000000001e
12-15   0000000000000000  0000000000000000  0000000000106000  00000000ff800000
16-19   0000001107f8d7df  0000000000000000  00000000101009dc  0000000003c008b3
20-23   0000000000000000  0000000000000000  000000000004ff0f  0000000000000000
24-27   0000000000366000  0000000000366000  0000000000044021  00000000f0412000
28-31   0000000055555555  0000000055555555  0000000011158000  0000000011111111
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x00000000101009e0
CPU State                    = 0x9e000001


<Press any key to continue (q to quit)> 

Memory Error Log Information:

Timestamp = 
  Sun Jun  2 19:40:32 GMT 2002    (20:02:06:02:19:40:32)


'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:

   No memory errors logged


I/O Module Error Log Information:

Timestamp = 
  Sun Jun  2 19:40:32 GMT 2002    (20:02:06:02:19:40:32)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x0002e000   0x0e0cc009   0x00000000000007fc
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    0x04000000   0x2e0cc009   0xffffffffffffffff
   3    ----------   0x3e0cc009   ------------------
   4    0x00000000   0x4e0cc009   0x00000000fed38048
   5    ----------   0x5e0cc009   ------------------
   6    0x00000000   0x6e0cc009   0x00000000fed3c048
   7    ----------   0x7e0cc009   ------------------
Main Menu: Enter command > 
Main Menu: Enter command > 
Main Menu: Enter command > 

> 
> 
> > > hth,
> > grant
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> 
> 

-- 
On ability:
	A dwarf is small, even if he stands on a mountain top;
	a colossus keeps his height, even if he stands in a well.
		-- Lucius Annaeus Seneca, 4BC - 65AD




From - Thu Nov 08 21:22:57 2018
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:14967

Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> > I really have no chance with this b2000:
> > I broken first my install and now it makes a HPMC in the middle of
> binutils
> > build and the pim info are not clear :((
> 
> I'd try a new kernel first.

Very strange behaviour: 
with some difficulties I reach to restart a kernel then I launch  my toolchain
script (which failled because of __therad problem), I change the faulty header
and finaly relaunch script which failled in a tar xjf (some time during the
first extract of binutils, some time during the second extract of gcc32) what
ever the kernel I used 2.4.18-pa24 2.4.18-pa24+lvm1.0.4 2.4.19-pre8-pa29?.

But thanks to the console logs grab with minicom I reach to notice the "BUG":

Debian GNU/Linux 3.0 palx2000 ttyS0

palx2000 login:

kernel BUG at superio.c:109!
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x2ee00000 to 0x2ee00bc0:
...

What could the reason why the tar xjf is successfull a first time and when it is
relaunched, it fails? Ext3 fs (I am not sure how can I change back to ext2) bash
(which other sh may I try) ?


Joel

PS: after a cleanpim it seems to be easiest to reboot?

-------------------------------------------------
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Subject: Re: [parisc-linux] How retrieving HPA/SPA with the device node
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	Hi
Thanks for the answer, it's clear now. The fact is I'm able 
to retrieve the hpa for a PCI device "only". But for the lazy 
example, I can retrieve the base, but not the hpa. So it would 
be really nice if I can write something usable also on 
712/710/etc.... and not only for PCI system. So I think I'll
forget it at this time, and work only for PCI subsystem (I can still
work on a function that test the kind of scsi card, and do the
reverse job to calculate the hpa from the base, but I'm not sure that
it is the best solution).

	Thanks a lot.

Grant Grundler wrote:
> 
> Bruno Vidal wrote:
> > Can someone can explain what is the difference between the
> > "hpa" of a scsi card (pci or not) and the "base" in the structure Scsi_Host ?
> 
> hpa and base are "handles" for different views of HW.
> "hpa" doesn't have to be a physical address (though it normally is).
> On V-class, the hpa is bogus and just a reference to particular IO device.
> base could be "adjusted" (like the LASI example) or "F-extended"
> for 64-bit or whatever the platform code thinks the driver needs
> to reference the device properly.
> 
> But in practice, for the platforms we support to date, I think you
> can compare them (or compare most of the bits) to determine
> if it's the same device.
> 
> grant
> 
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-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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On Fri, May 31, 2002 at 08:54:19AM -0400, Carlos O'Donell Jr. wrote:
> > 
> > Yes, exactly the same results. There's some thing different about the
> > binary vmlinux thatmay, or may not, be relevant. The kdb one seems to
> > have fewer segments than a non-kdb one:
> > 
> 
> Yes. Something is broke.
> 
> I just recently cleaned up my src trees and rebuilt a
> kdb enabled kernel and I get the same result on my 712/60.

I'm glad it's not just me :-)
 
> /me puts thinking cap on...
> 
> The _interesting_ thing would be to diff the System.map's
> for kdb-on vs. kdb-off to see is anything is explicitly being
> removed.

My guess was the the scsi __init functions were not getting called for some
reason, I have the System.map files for both builds but they both look OK (not
that I ful understand the kernel __init system though) 


patrick




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> 
> > The _interesting_ thing would be to diff the System.map's
> > for kdb-on vs. kdb-off to see is anything is explicitly being
> > removed.
> 
> My guess was the the scsi __init functions were not getting called for some
> reason, I have the System.map files for both builds but they both look OK (not
> that I ful understand the kernel __init system though) 
>

Yeah, I've run through the kdb and non-kdb builds and everything
is okay. 

I think there are two maybe three places where kdb initializes 
certain structures during startup. I'm going to have to check 
those paths to see how far it gets before dying.

Any comments from the crowd would be helpfull :)

/me goes off to add some printk's and extra checks
c. 



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Hello,

I have an HP PARISC B180L with a gecko graphics card.
What your method for config X11 on the debian 0.9.3 ?
Because i can't do that with the method for linux on I386 with XF86config.

Can you help me please=21


-------------------------------------------
LOFT STORY SUR TON MOBA=CFLLL =21=21=21 =

Habille ton portable aux couleurs de Loft Story et fais-le vibrer au son d=
e ton =E9mission pr=E9f=E9r=E9e en appelant le 08 99 707 500 (1,35 E/appel=
 + 0,34 E/min)




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> I think there are two maybe three places where kdb initializes 
> certain structures during startup. I'm going to have to check 
> those paths to see how far it gets before dying.
> 
> Any comments from the crowd would be helpfull :)
> 
> /me goes off to add some printk's and extra check

i've been offline for a bit so i might have missed something... but aiui
the symptom you've been seeing is that it hangs at the "If this is the
last message you see" message? has anyone tried to compile a kernel with
early bootup messages (there's a #define in pdc_cons.c to enable this)
and see if they get farther?

there are some debugging stuff that you can turn on in
arch/parisc/kernel/unwind.c ... that piece of code has caused some hangs 
in the past, you might want to enable those printks as well.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Hi Randolph,

I remember that I do it when you suggest it and iirc it help to goes further in
the boot. But I could not confirm at 100% because I had some hpmc problem with
my b2000 test server. Sorry, i will try to solved this problem first then come
back to you.

Joel

Quoting Randolph Chung <randolph@tausq.org>:

> > I think there are two maybe three places where kdb initializes 
> > certain structures during startup. I'm going to have to check 
> > those paths to see how far it gets before dying.
> > 
> > Any comments from the crowd would be helpfull :)
> > 
> > /me goes off to add some printk's and extra check
> 
> i've been offline for a bit so i might have missed something... but
> aiui
> the symptom you've been seeing is that it hangs at the "If this is the
> last message you see" message? has anyone tried to compile a kernel
> with
> early bootup messages (there's a #define in pdc_cons.c to enable this)
> and see if they get farther?
> 
> there are some debugging stuff that you can turn on in
> arch/parisc/kernel/unwind.c ... that piece of code has caused some hangs
> 
> in the past, you might want to enable those printks as well.
> 
> randolph
> -- 
>    @..@                                         http://www.TauSq.org/
>   (----)
>  ( >__< )
>  ^^ ~~ ^^
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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Let try the attached XF86config-4 file.
It was working for me but it is a long time that I have test it anymore!
Never the less I hope it will help you.

Joel

PS: on the ml there is also a search tool that could help you (in such way) to
find more info about X.

Quoting jlc.bardou@m6net.fr:

> Hello,
> 
> I have an HP PARISC B180L with a gecko graphics card.
> What your method for config X11 on the debian 0.9.3 ?
> Because i can't do that with the method for linux on I386 with
> XF86config.
> 
> Can you help me please!
> 
> 
> -------------------------------------------
> LOFT STORY SUR TON MOBALLL !!! 
> Habille ton portable aux couleurs de Loft Story et fais-le vibrer au son
> de ton mission prfre en appelant le 08 99 707 500 (1,35 E/appel +
> 0,34 E/min)
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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Subject: Re: [parisc-linux] gcc-cvs problem
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Xref: news.gmane.org gmane.linux.ports.parisc:14975

I not yet quiet sure that is not an hardware problem but I reboot on the kernel
2.4.18-pa29 and an hpmc occurs after an some minutes without doing anything else
then let it run for itself?

Then I reboot on hpux (10.20), unfortunately no problem occurs during the 4
hours it runs.

So now I reboot in su mode to move back ext3 to ext2 my all fs.
Then reboot in mu. It works and it is on going to recompile toolchain but it is
now so slow (even badly then a 712/80).

Is there other thing to do than backup, re-mkfs, restore to recover some
performance?

Thanks in advance for advice,
    Joel

Quoting joel.soete@freebel.net:

> Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:
> 
> > > I really have no chance with this b2000:
> > > I broken first my install and now it makes a HPMC in the middle of
> > binutils
> > > build and the pim info are not clear :((
> > 
> > I'd try a new kernel first.
> 
> Very strange behaviour: 
> with some difficulties I reach to restart a kernel then I launch  my
> toolchain
> script (which failled because of __therad problem), I change the faulty
> header
> and finaly relaunch script which failled in a tar xjf (some time during
> the
> first extract of binutils, some time during the second extract of gcc32)
> what
> ever the kernel I used 2.4.18-pa24 2.4.18-pa24+lvm1.0.4
> 2.4.19-pre8-pa29?.
> 
> But thanks to the console logs grab with minicom I reach to notice the
> "BUG":
> 
> Debian GNU/Linux 3.0 palx2000 ttyS0
> 
> palx2000 login:
> 
> kernel BUG at superio.c:109!
> WARNING! Stack pointer and cr30 do not correspond!
> Dumping virtual address stack instead
> 
> Dumping Stack from 0x2ee00000 to 0x2ee00bc0:
> ...
> 
> What could the reason why the tar xjf is successfull a first time and
> when it is
> relaunched, it fails? Ext3 fs (I am not sure how can I change back to
> ext2) bash
> (which other sh may I try) ?
> 
> 
> Joel
> 
> PS: after a cleanpim it seems to be easiest to reboot?
> 
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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Subject: Re: [parisc-linux] kdb_v21 branch updated to -pa26, and kallsyms cross-compile
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> 
> i've been offline for a bit so i might have missed something... but aiui
> the symptom you've been seeing is that it hangs at the "If this is the
> last message you see" message? has anyone tried to compile a kernel with
> early bootup messages (there's a #define in pdc_cons.c to enable this)
> and see if they get farther?
> 
> there are some debugging stuff that you can turn on in
> arch/parisc/kernel/unwind.c ... that piece of code has caused some hangs 
> in the past, you might want to enable those printks as well.
> 
> randolph

Yeah I've seen the code in pdc_cons.c, but I didn't know about 
the issues with the stack unwinding (though I just read JDA's
comments in the code... so I'll look at that).

I'll hack on this tonight and see how far I get.
Currently my test box is turned off, and since I haven't
built my remote power switch (spp + solid state relay) ....
I can't reboot the sucker :}

Thanks to the external led I know that the box (712/60) doesn't 
get far since it never reaches the pdc soft power button 
initialization routine (__init power_init).

c.




From - Thu Nov 08 21:22:58 2018
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Subject: Re: [parisc-linux] kdb_v21 branch updated to -pa26, and kallsyms cross-compile
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Xref: news.gmane.org gmane.linux.ports.parisc:14977

On Tue, Jun 04, 2002 at 08:49:54AM -0700, Randolph Chung wrote:
> > I think there are two maybe three places where kdb initializes 
> > certain structures during startup. I'm going to have to check 
> > those paths to see how far it gets before dying.
> > 
> > Any comments from the crowd would be helpfull :)
> > 
> > /me goes off to add some printk's and extra check
> 
> i've been offline for a bit so i might have missed something... but aiui
> the symptom you've been seeing is that it hangs at the "If this is the
> last message you see" message? has anyone tried to compile a kernel with
> early bootup messages (there's a #define in pdc_cons.c to enable this)
> and see if they get farther?
> 
> there are some debugging stuff that you can turn on in
> arch/parisc/kernel/unwind.c ... that piece of code has caused some hangs 
> in the past, you might want to enable those printks as well.


The odd thing is that is just seems to disable the FW SCSI and the serial
console. If I hook up a monitor (rather a feat of equopment mbving in my house
unfortunately!) I can see the boot getting as far as failing to mount the root
filesystem.

patrick




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Subject: [parisc-linux] howdy and 720/50 framebuffer question
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Greetings,

I have a couple of 720's and a couple of 735's to rehabilitate.  The
PARISC-Linux developers have done truly excellent work on the kernel and
Debian adaptations for this architecture.  If this can yield reasonable
GNU/Linux installs including X, the machines will go on display in our
recycling showroom as examples of reuse of discarded cool hardware. 
Maybe someone will then adopt them to give them new homes.

I'm stymied about X on a 720/50.  Starting from an 0.9.3 ISO which
worked fine for a base install, the default video seems to be a one bit
B&W buffer (text overlay plane?).  fbset -i says there's no device at
/dev/fb0, which does exist in the filesystem; XFree86 subsequently
doesn't load the framebuffer driver.  There's no Penguin at boot.  I've
tried later precompiled kernels through -pa33, compiling my own from
CVS, and appending video=stifb at a boot prompt with and without sti=0. 

The hardware is there:

"1. Coral SGC Graphics (10) at 0xf8000000 [1], versions 0x4, 0x0, 0x77"


This is some kind of 24 plane framebuffer, right?  I'd be satisfied with
8 bit color from it.

Any hints for additional instrumentation or settings?

-- thanks, SP
   Babbage's Basement volunteer and workstation curator
       http://www.lightlink.com/babbages/workstations.html




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An interesting question at this point. I also have a 720, but I never
tested the graphics display up to now (I only use it via serial line).

My 720 has a single board graphics card with three BNC connectors
on it. Is this really a 24bit graphics or a 8bit graphics. The only
thing I know, is that the resolution was used with 1280x1024 under
HP-UX 9.05 (or similar...).

One day I will carry up my 21" monitor and try the grpahics on this 
machine !

Christoph


Steve Pacenka wrote:
> 
> Greetings,
> 
> I have a couple of 720's and a couple of 735's to rehabilitate.  The
> PARISC-Linux developers have done truly excellent work on the kernel and
> Debian adaptations for this architecture.  If this can yield reasonable
> GNU/Linux installs including X, the machines will go on display in our
> recycling showroom as examples of reuse of discarded cool hardware.
> Maybe someone will then adopt them to give them new homes.
> 
> I'm stymied about X on a 720/50.  Starting from an 0.9.3 ISO which
> worked fine for a base install, the default video seems to be a one bit
> B&W buffer (text overlay plane?).  fbset -i says there's no device at
> /dev/fb0, which does exist in the filesystem; XFree86 subsequently
> doesn't load the framebuffer driver.  There's no Penguin at boot.  I've
> tried later precompiled kernels through -pa33, compiling my own from
> CVS, and appending video=stifb at a boot prompt with and without sti=0.
> 
> The hardware is there:
> 
> "1. Coral SGC Graphics (10) at 0xf8000000 [1], versions 0x4, 0x0, 0x77"
> 
> This is some kind of 24 plane framebuffer, right?  I'd be satisfied with
> 8 bit color from it.
> 
> Any hints for additional instrumentation or settings?
> 
> -- thanks, SP
>    Babbage's Basement volunteer and workstation curator
>        http://www.lightlink.com/babbages/workstations.html
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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On Tue, 2002-06-04 at 19:08, Christoph Plattner wrote:
> An interesting question at this point. I also have a 720, but I never
> tested the graphics display up to now (I only use it via serial line).
> 
> My 720 has a single board graphics card with three BNC connectors
> on it. Is this really a 24bit graphics or a 8bit graphics. The only
> thing I know, is that the resolution was used with 1280x1024 under
> HP-UX 9.05 (or similar...).

Christoph,

The monochrome text plane is 1280x960 on my current victim.  It has four
BNC video connectors of which I use R, G+sync, and B.


> One day I will carry up my 21" monitor and try the grpahics on this 
> machine !

We have several large HP monitors too; I can barely lift the larger
ones.  Not very sharp, but I've only seen them in poor lighting
conditions.

-- thanks, SP




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Subject: [parisc-linux] HP9000 C200 Visualize-EG XFree86 Success!
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Just did a network install using the 0.9.3 full cdrom, and it
went very smoothly other than not being able to get the
rescue image ( 32 / 64 subdir ) by default. The default net
install options were messed up. I just [Q]uit the install and
ran DSelect on its own to get it working right, not really a
big deal.

The 2.4.17 kernel installed by default would not run X, causing
the HPMC error. Upgrading to Debian's 2.4.18 kernel fixed this
problem and gave me 8 bit color at 1024x768 with the Visualize-EG
board. For web surfers looking for help here is the relevant
snippet to put in /etc/X11/XF86Config-4

# Simple XFree86 Configuration for Visualize-EG STI Framebuffer

Section "Screen"
	Identifier	"Default Screen"
		Device	"Generic Video Card"
		Monitor	"Generic Monitor"
		SubSection	"Display"
			Depth	8
			Modes	"default"
		EndSubSection
EndSection

Install Notes: "gpm" doesn't seem to work for me, although I
am running a Dexxa Optical Wheel Mouse through a KVM switch.
I just set X to "PS/2" and it worked ( but no mouse wheel ).

Looks great! I was able to slurp up the whole Debian system
via the net with no trouble at all. KDE installed with no problems
and runs pretty well on this crate.

Just ordered a Visualize-24 graphics board on Ebay which I will
plug in and see if it works better than the EG board.

See you at Debconf-2!

- Doug




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On Tue, 4 Jun 2002, B. Douglas Hilton wrote:

> Install Notes: "gpm" doesn't seem to work for me, although I
> am running a Dexxa Optical Wheel Mouse through a KVM switch.
> I just set X to "PS/2" and it worked ( but no mouse wheel ).

Try ImPS/2 or ExplorerPS/2 instead and add a line

Option "ZAxisMapping" "4 5"

in the InputDevice Section

> Looks great! I was able to slurp up the whole Debian system
> via the net with no trouble at all. KDE installed with no problems
> and runs pretty well on this crate.
>
> Just ordered a Visualize-24 graphics board on Ebay which I will
> plug in and see if it works better than the EG board.

Sorry to disappoint you, but just the Visualize-EG is supported for now!

gretings max





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	Hi
I can't access to the anonymous cvs. There is a problem, or I'm doing something wrong ?
# socksify cvs login
Logging in to :pserver:anonymous@cvs.parisc-linux.org:2401/var/cvs login
CVS password:
cvs login: authorization failed: server cvs.parisc-linux.org rejected access to /var/cvs login for user anonymous

-> I'm using just "enter" as password.

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Hi Bruno,

It works for me two hours ago.

But I also met this problem one or two weeks ago and it appears to be a problem
with ISP. I inform it and the problem was solved but I did not recieved explanation.

Good luck,
    Joel

Quoting Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>:

> 	Hi
> I can't access to the anonymous cvs. There is a problem, or I'm doing
> something wrong ?
> # socksify cvs login
> Logging in to :pserver:anonymous@cvs.parisc-linux.org:2401/var/cvs
> login
> CVS password:
> cvs login: authorization failed: server cvs.parisc-linux.org rejected
> access to /var/cvs login for user anonymous
> 
> -> I'm using just "enter" as password.
> 
> 	Thanks.
> 
> -- 
> 	Vidal Bruno, (770-4271)
>         SSD-HA Team, HP-UX & LINUX Support
> 	bruno_vidal@admin.france.hp.com


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Subject: Re: [parisc-linux] kdb_v21 branch updated to -pa26, and kallsyms cross-compile
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Hi all,

It seems that the b2000 I used to test gcc-3.2 does not crash anymore :) with
all kernels :)) (pl 2.4.18 or my stuff on 2.4.19)? (I feel that fs corruption
occurs and was not detected immideately?)

Well I come back to you to see what should be the useable kdb config (to
investigate the network problem with kernel compiled with gcc-3.1 or -3.2).

Mine is now:
CONFIG_MAGIC_SYSRQ=Y
CONFIG_KDB=Y
CONFIG_KDB_MODULES=Y
# CONFIG_KDB_OFF IS NOT SET
CONFIG_KALLSYMS=Y

Thanks a lot,
    Joel

Quoting Randolph Chung <randolph@tausq.org>:

> > I think there are two maybe three places where kdb initializes 
> > certain structures during startup. I'm going to have to check 
> > those paths to see how far it gets before dying.
> > 
> > Any comments from the crowd would be helpfull :)
> > 
> > /me goes off to add some printk's and extra check
> 
> i've been offline for a bit so i might have missed something... but
> aiui
> the symptom you've been seeing is that it hangs at the "If this is the
> last message you see" message? has anyone tried to compile a kernel
> with
> early bootup messages (there's a #define in pdc_cons.c to enable this)
> and see if they get farther?
> 
> there are some debugging stuff that you can turn on in
> arch/parisc/kernel/unwind.c ... that piece of code has caused some hangs
> 
> in the past, you might want to enable those printks as well.
> 
> randolph
> -- 
>    @..@                                         http://www.TauSq.org/
>   (----)
>  ( >__< )
>  ^^ ~~ ^^
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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Greetings all,

I am new to the PA-RISC mailing list, and to the PA-RISC world in
general so this is my introduction. I work for the outdoor equipment
manufacturer by the name of Marmot Mountain and am one of two sysadms
who run Marmot's IT department.

We have long run our financial and data systems on misc. *nix based
systems and one of these systems that no longer performs this duty is a
HP E55. Being a junkie I'm naturally trying to find a new job and life
for this little E55. I have not yet done anything much with it yet as
I've been researching just how probable it is that I can put Debian/GNU
Linux on it in some fashion. I still have all the old HPUX software in
case I decide to be masochistic (okok.. so it's not so bad, and having
disk storage don't sound so bad either, but Linux will be more fun
right?  ;)

Right now I am putting together a cross-build environment on an i386 box
so that I may compile a HPPA kernel and I've got bootp and tftp services
ready to go. Looks like getting everything together will be a bit of a
challenge. I'm so used to the i386 world now that I'm royally spoiled by
the Debian package repository. Spoiled and lazy that is. All I can hope
for is that I'm not off my rocker or heading in the wrong direction
entirely.

So, if anyone has some wisdom to impart upon a newbie to the PA-RISC
world, I'll be very grateful, and so will my E55!

Off I go to save the world! It's nice to meet all of you!=20

Damian Boune
----------------------
Marmot Mountain Ltd.



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Hi Dave,

Quoting joel.soete@freebel.net:

> Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:
> 
> > > I really have no chance with this b2000:
> > > I broken first my install and now it makes a HPMC in the middle of
> > binutils
> > > build and the pim info are not clear :((
> > 
> > I'd try a new kernel first.
> 
> Very strange behaviour: 
> with some difficulties I reach to restart a kernel then I launch  my
> toolchain
> script (which failled because of __therad problem), I change the faulty
> header
> and finaly relaunch script which failled in a tar xjf (some time during
> the
> first extract of binutils, some time during the second extract of gcc32)
> what
> ever the kernel I used 2.4.18-pa24 2.4.18-pa24+lvm1.0.4
> 2.4.19-pre8-pa29?.
> 
> But thanks to the console logs grab with minicom I reach to notice the
> "BUG":
> 
> Debian GNU/Linux 3.0 palx2000 ttyS0
> 
> palx2000 login:
> 
> kernel BUG at superio.c:109!
> WARNING! Stack pointer and cr30 do not correspond!
> Dumping virtual address stack instead
> 
> Dumping Stack from 0x2ee00000 to 0x2ee00bc0:
> ...
> 
> What could the reason why the tar xjf is successfull a first time and
> when it is
> relaunched, it fails? Ext3 fs (I am not sure how can I change back to
> ext2) bash
> (which other sh may I try) ?
> 

Well what ever was the fs type (ext2 or ext3) the problem was the same;
apparently until the fs was clearly corrupted and required a fsck. Everything
seems to come back Ok.

So finaly I had to replace __thread to _thr in some glibc headers (already
changed in the glibc cvs actually change __thread to __threadp) and now the
toolchaine compiles successfully for gcc-3.2.

The kernel still compiles and boot well :) 
But the inetd connection also still there :( (hope kdb will help)

Thanks again for help,
    Joel


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Re:

> I am new to the PA-RISC mailing list, and to the PA-RISC world in

welcome!
> systems and one of these systems that no longer performs this duty is a
> HP E55. Being a junkie I'm naturally trying to find a new job and life
> for this little E55. I have not yet done anything much with it yet as

>From what I recall, the HP 9000/E55 (and the other Ex5 models) is
not supported by Linux, and it won't run.  

>From the "supported" page at http://www.parisc-linux.org/hardware/supported.html

   The earliest PA-RISC servers have proprietary HP devices attached to 
   proprietary HP bus architectures. Documentation on these busses and 
   devices will not become available soon since no one in HP is finding, 
   "scrubbing", and releasing the docs. Machines in this category are the 
   E, F, G, H, I class (aka Nova) and T500 series (Emerald) machines as 
   well as some earlier, unlettered servers. 

Your E55 is an E class system :(

OTOH, IIRC, Christoph Plattner did manage to get some form of Linux running on it,
possibly by making major changes to the I/O system...
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-November/014615.html

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com



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Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> > It seems to be well comited in last cvs update this morming I got in
> > src/gcc/gcc/fixinc/inclhack.def:
> > ...
> > /*
> >  * __thread is now a keyword.
> >  */
> 
> > But do not seems to be applied as I got the same error?
> > 
> > What do I wrong or forget to do?
> 
> You should see the following in your build output:
> 
> Applying thread_keyword           to pthread.h
> Fixed:  pthread.h
> 
> A fixed pthread.h should appear in the {build}/gcc/include directory.
> This seems to work ok for me in a native hppa-linux build.


With build toolchain procedure I build well a cross compiler hppa to hppa?

Also I would like to compare the results with a gcc hppa-linux native build when
I compile the kernel with gcc-3.1 (or 3.2) and see if the same network problem
occurs.

But in that case I ignore what parameters I would have to use to configure and
compile gcc natively. Can you still help me?

Thanks in advance,
    Joel


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> Mine is now:
> CONFIG_MAGIC_SYSRQ=Y
> CONFIG_KDB=Y
> CONFIG_KDB_MODULES=Y
> # CONFIG_KDB_OFF IS NOT SET
> CONFIG_KALLSYMS=Y
> 

that looks fine.

randolph



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> But in that case I ignore what parameters I would have to use to configure and
> compile gcc natively. Can you still help me?

If you are using a 64-bit machine, you will have to specify "--host".  You
probably also want to specify "--prefix".  So, in your build directory,

${gcc_source_directory}/configure --prefix=${somewhere} --host=hppa-linux

This will configure the build for everything.  If you want just C, specify
"--enable-languages=c".  You may also want to specify where the assembler
and linker are if you don't want the defaults.  Type

${gcc_source_directory}/configure --help

for more option information.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> 
> Well I come back to you to see what should be the useable kdb config (to
> investigate the network problem with kernel compiled with gcc-3.1 or -3.2).
> 
> Mine is now:
> CONFIG_MAGIC_SYSRQ=Y
> CONFIG_KDB=Y
> CONFIG_KDB_MODULES=Y
> # CONFIG_KDB_OFF IS NOT SET
> CONFIG_KALLSYMS=Y
> 
> Thanks a lot,
>     Joel
>

Does you system boot with kdb enabled?

I think I might have gotten a bit farther, I have a few
hours to do more testing tonight and I'll post later.

c. 



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Xref: news.gmane.org gmane.linux.ports.parisc:14993

> From what I recall, the HP 9000/E55 (and the other Ex5 models) is
> not supported by Linux, and it won't run. =20

Yes, this is the general case AFAIK, other than the below.

> OTOH, IIRC, Christoph Plattner did manage to get some form of Linux
running on it,
> possibly by making major changes to the I/O system...
>
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-November/01461
5.html

I reviewed this message during my initial research, and this seems to
point to what I need to get started. I'll have to dig around CVS and see
what I can find.=20

Christoph, is there anything specific I should look at? Have you had any
further trials?

Many Thanks!!!
Damian Boune
Marmot Mountain Ltd.



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: E55 Kernel Support and question for Christoph  (used to be RE: 
 [parisc-linux] Greetings!)
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Hello, welcome to the PA-RISC hacker group

(I hope you are a new hacker ....)


We E55 users have to work and fight very hard !!!
We cannot accept to read a sentence like `not supported' !!!

Ok, let us come to the facts.
The E55 is a nice server, but it includes many proprietary parts.
These are the I/O bus system, and the following devices:
	MUX 8/16-way serial interface (also affected is the serial
					console)
	Parallel port (not so important in the first run)
	Complete SCSI system

The CPU (core systemw with RAM/Cache) and the ethernet is working
well and quite with a good performace.

It was very important for me to boot this machine. The image booting
via ethernet (BOOTP/TFTP) works very well. The first step was to get
an running console (serial).

For this I started with a hack, using the ROM PDC console via a
polling driver, and so I could start the machine June 2001.

End of 2001 I rewrote this driver as clean one, and Ryan added the
config stuff. So you can use the default linux PA-RISC kernel to
boot the E55 as "diskless server" via NFS-ROOT and a serial ROM
console.

What to do:
-----------

Checkout a kernel, and enable the PDC ROM console in the "Character
Devices" under the "Non-standard serial support". Further follow the
<HELP> instructions for this driver (Creating a /dev/ttyB0, and use
this device as login device).

With this driver we have a chance to do further development on the
device driver programming. I am waiting on documentation to help
developing drivers, but I have to wait.

HELLO ot the others. What is the status on the docu or drivers ?

Good luck in starting up the E55 (it is quite straignt and no real
hacks or patches are needed !).

Christoph P.


Damian Boune wrote:
> 
> > From what I recall, the HP 9000/E55 (and the other Ex5 models) is
> > not supported by Linux, and it won't run.
> 
> Yes, this is the general case AFAIK, other than the below.
> 
> > OTOH, IIRC, Christoph Plattner did manage to get some form of Linux
> running on it,
> > possibly by making major changes to the I/O system...
> >
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-November/01461
> 5.html
> 
> I reviewed this message during my initial research, and this seems to
> point to what I need to get started. I'll have to dig around CVS and see
> what I can find.
> 
> Christoph, is there anything specific I should look at? Have you had any
> further trials?
> 
> Many Thanks!!!
> Damian Boune
> Marmot Mountain Ltd.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Xref: news.gmane.org gmane.linux.ports.parisc:14995

Jeremy Drake wrote:
> Here it is...  BTW, maybe you could explain how to interpret these, so I 
> don't have to send you all of this...

Generally, look at IOA offset and GR02 to see where it died.
If it's not a kernel address, start trying to figure out what it is.
Lots more magic in the PIM dump that I don't understand either.

In this HPMC dump, I don't know where 0x19bf0 is...

The firmware on the workstations tries to give a high level decoding
of the error:
> A Data I/O Fetch Timeout occurred while CPU 0 was
> requesting information from a device at the path 10/0/15/1 (built-in PCI devi
>   ce).
> 
> 
> Memory/IO Controller Error Analysis Information:
> 
> The Memory/IO Controller only observed the Broadcast Error.  It did not log
> any additional information about the HPMC.


This typically means something in the IO path didn't respond
to a CPU read.

grant



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I'm trying to build the 2.4.18 kernel, and everything goes great
until I get to the `make bzImage` part and it screams about palo.
I'm assuming I need the palo source. is this right??

-Marc

seki:/usr/src/kernel-source-2.4.18-hppa# make bzImage

.... snip ....

`gcc -print-libgcc-file-name` /usr/src/kernel-source-2.4.18-hppa/arch/parisc/lib
/lib.a /usr/src/kernel-source-2.4.18-hppa/lib/lib.a  \
        --end-group \
        -o vmlinux
nm vmlinux | grep -v '\(compiled\)\|\(\.o$\)\|\( [aUw] \)\|\(\.\.ng$\)\|\(LASH[R
L]DI\)' | sort > System.map
export TOPDIR=`pwd`; \
unset STRIP LDFLAGS CPP CPPFLAGS AFLAGS CFLAGS CC LD; cd ../palo && make lifimag
e
/bin/sh: cd: ../palo: No such file or directory
make: *** [palo] Error 1
seki:/usr/src/kernel-source-2.4.18-hppa#



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I have another network out of a C180, and I stuck it into mine, but
I cannot figure out how to get it to show up in Linux.

Thanks,
-Marc



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> I'm trying to build the 2.4.18 kernel, and everything goes great
> until I get to the `make bzImage` part and it screams about palo.
> I'm assuming I need the palo source. is this right??
> 
> -Marc
>

Yup.

$SRC-TREE--|
           |--- /linux
           |
           |--- /palo

cd linux;
make oldconfig;
make menuconfig; (Fiddle)
make dep;
make palo;

This puts the required lifimage in $SRC-TREE/palo

c.




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Call me crazy, but I cannot get this to work. There doesn't seem
to be a 'palo' target for make. When I run make palo it just
runs the make all (below are the first few lines).

Any Ideas?

seki:/usr/src/kernel-source-2.4.18-hppa# make palo
. scripts/mkversion > .tmpversion
gcc -D__KERNEL__ -I/usr/src/kernel-source-2.4.18-hppa/include -Wall -Wstrict-pro
totypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common
 -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -m
disable-fpregs -ffunction-sections -march=1.1 -mschedule=7100  -DUTS_MACHINE='"p
arisc"' -c -o init/version.o init/version.c
make CFLAGS="-D__KERNEL__ -I/usr/src/kernel-source-2.4.18-hppa/include -Wall -Ws
trict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -f
no-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect
-calls -mdisable-fpregs -ffunction-sections -march=1.1 -mschedule=7100 " -C  ker
nel
make[1]: Entering directory `/usr/src/kernel-source-2.4.18-hppa/kernel'
make all_targets
make[2]: Entering directory `/usr/src/kernel-source-2.4.18-hppa/kernel'
make[2]: Nothing to be done for `all_targets'.
make[2]: Leaving directory `/usr/src/kernel-source-2.4.18-hppa/kernel'
make[1]: Leaving directory `/usr/src/kernel-source-2.4.18-hppa/kernel'
make CFLAGS="-D__KERNEL__ -I/usr/src/kernel-source-2.4.18-hppa/include -Wall -Ws
trict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -f
no-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect
-calls -mdisable-fpregs -ffunction-sections -march=1.1 -mschedule=7100 " -C  dri
vers

---------- Original Message ----------------------------------
From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
Date:  Wed, 5 Jun 2002 22:26:52 -0400

>> I'm trying to build the 2.4.18 kernel, and everything goes great
>> until I get to the `make bzImage` part and it screams about palo.
>> I'm assuming I need the palo source. is this right??
>> 
>> -Marc
>>
>
>Yup.
>
>$SRC-TREE--|
>           |--- /linux
>           |
>           |--- /palo
>
>cd linux;
>make oldconfig;
>make menuconfig; (Fiddle)
>make dep;
>make palo;
>
>This puts the required lifimage in $SRC-TREE/palo
>
>c.
>
>



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> Call me crazy, but I cannot get this to work. There doesn't seem
> to be a 'palo' target for make. When I run make palo it just
> runs the make all (below are the first few lines).
> 
> Any Ideas?
>

How did you get the source tree for linux and palo?

c. 



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i did:

   apt-get install kernel-source-2.4.18-hppa

---------- Original Message ----------------------------------
From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
Date:  Wed, 5 Jun 2002 23:46:37 -0400

>> Call me crazy, but I cannot get this to work. There doesn't seem
>> to be a 'palo' target for make. When I run make palo it just
>> runs the make all (below are the first few lines).
>> 
>> Any Ideas?
>>
>
>How did you get the source tree for linux and palo?
>
>c. 
>



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Hi Marc,

Go to
http://cvs.parisc-linux.org/
and check out the linux and palo directories with an anonymous account.
Then build your linux kernel from the linux directory.

Greetings,
Helge

On Thursday 06 June 2002 06:39, marc  wrote:
> i did:
>
>    apt-get install kernel-source-2.4.18-hppa
>
> ---------- Original Message ----------------------------------
> From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
> Date:  Wed, 5 Jun 2002 23:46:37 -0400
>
> >> Call me crazy, but I cannot get this to work. There doesn't seem
> >> to be a 'palo' target for make. When I run make palo it just
> >> runs the make all (below are the first few lines).
> >>
> >> Any Ideas?
> >
> >How did you get the source tree for linux and palo?
> >
> >c.




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Hi,

For what it's worth.

I always build my kernel the i386 way:
make menuconfig
make dep clean bzImage

I always use the nightly snapshots available from ftp.parisc-linux.org/cvs/ 
.


regards,

Kenneth
>From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
>To: marc <marc@centraltx.com>
>CC: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] Building my first kernel
>Date: Wed, 5 Jun 2002 22:26:52 -0400
>
> > I'm trying to build the 2.4.18 kernel, and everything goes great
> > until I get to the `make bzImage` part and it screams about palo.
> > I'm assuming I need the palo source. is this right??
> >
> > -Marc
> >
>
>Yup.
>
>$SRC-TREE--|
>            |--- /linux
>            |
>            |--- /palo
>
>cd linux;
>make oldconfig;
>make menuconfig; (Fiddle)
>make dep;
>make palo;
>
>This puts the required lifimage in $SRC-TREE/palo
>
>c.
>
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


enjoy life, enjoy linux,

Kenneth

_________________________________________________________________
Verzend en ontvang Hotmail via je mobieltje: http://mobile.msn.com




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To: Christoph Plattner <christoph.plattner@gmx.at>
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Le mercredi 5 juin 2002, =E0 10:41 , Christoph Plattner a =E9crit :

>
> What to do:
> -----------
>
> Checkout a kernel, and enable the PDC ROM console in the "Character
> Devices" under the "Non-standard serial support". Further follow the
> <HELP> instructions for this driver (Creating a /dev/ttyB0, and use
> this device as login device).
You can get a lifimage with PDC enabled there:
http://pateam.esiee.fr/cd-
images/lifimages/lifimage-2.4.18-pa32-PDC-20020531.gz

There is also a corresponding netinst iso available on this site.

Robbert Stanford, who is hacking K-Class, reported this on the IRC:
15:48:23 <robbie>       the lifimage worked fine
15:49:00 <robbie>       however the kernel that was installed from=20
debian.org wasnt pdc enabled
15:52:44 <robbie>       thibaut:  on eother thing, but its more related=20=

to the install, i had to exit to a shell and manually edit=20
/target/etc/inittab and inittab.real to use /dev/ttyB0
15:55:29 <robbie>       which isnt realy a big deal, knowing one has to=20=

use ttyB0 with the lifimage pretty well means you oughta know enough=20
about sysVinit to check inittab when things go awry on your first boot

About the inittab.real hack, maybe Richard Hirst will see whether some=20=

tweaks to the default boot-floppies have to be done ;o)

Anyway, I hope this will help you.


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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	Hi
I've started this morning to download latest CVS bits.
I've prepared a patche for this version from my dump driver,
and try to recompile everything, but I've found a problem
with LVM !!! See:
make dep: okay
make vmlinux:
ioctl32.c:2009: warning: assignment makes pointer from integer without a cast
ioctl32.c:2030: structure has no member named `inode'
ioctl32.c:2049: warning: passing arg 2 of `lcopy_from_user' makes pointer from integer without a cast
ioctl32.c:2067: structure has no member named `inode'
ioctl32.c:2078: warning: passing arg 2 of `lcopy_from_user' makes pointer from integer without a cast
ioctl32.c:2082: warning: assignment makes integer from pointer without a cast
ioctl32.c:2086: structure has no member named `inode'
ioctl32.c:1985: warning: `v' might be used uninitialized in this function 

-> in this file it is:
	v->pv[i]->pe = NULL; v->pv[i]->inode = NULL;
and
	p.pe = NULL; p.inode = NULL; 

It complains that there is no "inode" in structure pv[i].
So in this line v is a struct vg_t. In this structure
pv[i] is a pv_t structure, I've found this struture in
include/linux/lvm.h, and it is right, there is no "inode", 
in it !!!! Is this LVM code broken ?

typedef struct pv_v2 {
        char id[2];             /* Identifier */
        unsigned short version; /* HM lvm version */
        lvm_disk_data_t pv_on_disk;
        lvm_disk_data_t vg_on_disk;
        lvm_disk_data_t pv_uuidlist_on_disk;
        lvm_disk_data_t lv_on_disk;
        lvm_disk_data_t pe_on_disk;
        char pv_name[NAME_LEN];
        char vg_name[NAME_LEN];
        char system_id[NAME_LEN];       /* for vgexport/vgimport */
        kdev_t pv_dev;
        uint pv_number;
        uint pv_status;
        uint pv_allocatable;
        uint pv_size;           /* HM */
        uint lv_cur;
        uint pe_size;
        uint pe_total;
        uint pe_allocated;
        uint pe_stale;          /* for future use */
        pe_disk_t *pe;          /* HM */
        struct block_device *bd;
        char pv_uuid[UUID_LEN+1];

#ifndef __KERNEL__
        uint32_t pe_start;      /* in sectors */
#endif
} pv_t;
   
-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: Patrick Caulfield <patrick@tykepenguin.com>
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Subject: Re: [parisc-linux] Probleme while compiling last CVS kernel.
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On Thu, Jun 06, 2002 at 02:44:42PM +0200, Bruno Vidal wrote:
> 	Hi
> I've started this morning to download latest CVS bits.
> I've prepared a patche for this version from my dump driver,
> and try to recompile everything, but I've found a problem
> with LVM !!! See:


Does LVM work on 64bit HP ?

I remember doing the ioctl32.c support for sparc64 some time ago but I can
easily beleive that the mods to that file haven't been propogated to other
32/64bit systems - if you're feeling adventurous and really need LVM then you
might be able to cut out those bits and drop them into the HP.

On the other hand you could try LVM2. I know LVM2 runs well on my 32bit HP
machines and also on 64bit Alpha.

patrick




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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] kdb getting healthier? (PCI guru needed, that's you willy!)
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Randolph,

I think I was able to get kdb to stop dying inside unwind_table_init.

--- unwind.c.orig       Thu Jun  6 08:51:02 2002
+++ unwind.c    Thu Jun  6 08:51:49 2002
@@ -106,7 +106,7 @@
        table->base_addr = base_addr;
        table->gp = gp;
        table->start = base_addr + start[0].region_start;
-       table->end = base_addr + end[-1].region_end;
+       table->end = base_addr + end[0].region_end - sizeof(struct unwind_table_entry);
        table->table = (struct unwind_table_entry *)table_start;
        table->length = end - start;
        table->next = NULL;

Is this a gcc-ism we're seeing?
Note-to-self: Look at .S produced from compiling unwind.c

On another note, we have no code that calls unwind_table_add so I've
#if'd it out. Which makes me wonder... which change was the fix? 
Time to go back to square one and try them out independantly.

The kernel still goes into an infinite loop of unknown origin:
---
PCI or EISA Bus Adapter 0 is not registered...
---
(see ./arch/parisc/kernel/pci.c' -> PCI_PORT_IN)
Don't know where this gets called from, or how the ugly macro
expands :)

Sadly I think I zapped my VGA out on the 712/60 (A common occurence?).
It no longer produces _any_ video signals.
I may have to drag a 715/50 back to my house...

c.




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Subject: Re: [parisc-linux] kdb getting healthier? (PCI guru needed, that's you willy!)
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On Thu, Jun 06, 2002 at 09:21:15AM -0400, Carlos O'Donell Jr. wrote:
> The kernel still goes into an infinite loop of unknown origin:
> ---
> PCI or EISA Bus Adapter 0 is not registered...
> ---
> (see ./arch/parisc/kernel/pci.c' -> PCI_PORT_IN)
> Don't know where this gets called from, or how the ugly macro
> expands :)

that ugly macro expands into inb/inw/inl.  that printk probably needs to
go away -- i don't think it's helpful.  maybe it should stay for adapter
!= 0, but so many drivers probe ISA space for their devices that we're
going to keep getting them.

i bet the loop isn't infinite... probably driver probing.  If you turn
off CONFIG_PCI, the driver shouldn't be compiled in.

> Sadly I think I zapped my VGA out on the 712/60 (A common occurence?).
> It no longer produces _any_ video signals.
> I may have to drag a 715/50 back to my house...
> 
> c.
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
Revolutions do not require corporate support.



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	Hi
I've compiled a new kernel (without LVM), everything seems okay.
My dump driver compiled right...but when I use insmod:
hpfrcw12:~# insmod dump
Using /lib/modules/2.4.18-pa35/kernel/drivers/dump/dump.o
r_info 0x29 not handled
r_info 0x29 not handled
r_info 0x29 not handled
r_info 0x29 not handled
r_info 0x29 not handled
r_info 0x29 not handled
r_info 0x29 not handled
r_info 0x29 not handled
hpfrcw12:~# insmod st
Using /lib/modules/2.4.18-pa35/kernel/drivers/scsi/st.o
r_info 0x29 not handled
r_info 0x29 not handled
r_info 0x29 not handled
r_info 0x29 not handled 

So it is not coming from my modules. The modules are loaded,
everything seems okay, but what means this messages ?

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From - Thu Nov 08 21:23:00 2018
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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kdb getting healthier? (PCI guru needed, that's you willy!)
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> 
> that ugly macro expands into inb/inw/inl.  that printk probably needs to
> go away -- i don't think it's helpful.  maybe it should stay for adapter
> != 0, but so many drivers probe ISA space for their devices that we're
> going to keep getting them.
> 
> i bet the loop isn't infinite... probably driver probing.  If you turn
> off CONFIG_PCI, the driver shouldn't be compiled in.
>

Ah, excellent. I think I understand how that works.
Sadly, I'm not so sure that's the case, since it prints:
---
PCI or EISA Bus Adapter 0 is not registered. in8(0x64) returning -1;
" in8(0x60) returning -1;
---
This message is not an exact copy since my notes are at home.

This printk alternates, dare I say, forever? (I'll leave it running for
a few hours and see what happens). 

I'll try and figure out what, if any, driver is broken.
Most importantly I'll disable PCI/EISA support for now and see how
far the system boots.

Thanks W!

c.




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From: "marc " <marc@centraltx.com>
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Subject: Re: [parisc-linux] Building my first kernel
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ok, so set CVSROOT=:pserver:anonymous@cvs.parisc-linux.org:/var/cvs 
and then do a:

  cd /usr/src
  cvs checkout linux
  cvs checkout palo


am i right?

-Marc

---------- Original Message ----------------------------------
From: Helge Deller <deller@gmx.de>
Date:  Thu, 6 Jun 2002 09:19:20 +0200

>Hi Marc,
>
>Go to
>http://cvs.parisc-linux.org/
>and check out the linux and palo directories with an anonymous account.
>Then build your linux kernel from the linux directory.
>
>Greetings,
>Helge
>
>On Thursday 06 June 2002 06:39, marc  wrote:
>> i did:
>>
>>    apt-get install kernel-source-2.4.18-hppa
>>
>> ---------- Original Message ----------------------------------
>> From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
>> Date:  Wed, 5 Jun 2002 23:46:37 -0400
>>
>> >> Call me crazy, but I cannot get this to work. There doesn't seem
>> >> to be a 'palo' target for make. When I run make palo it just
>> >> runs the make all (below are the first few lines).
>> >>
>> >> Any Ideas?
>> >
>> >How did you get the source tree for linux and palo?
>> >
>> >c.
>
>



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Subject: [parisc-linux] Installing a Second Network Card
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I may have answered my own questions, do I need to add a line 
to palo.conf analogous to this line for lilo?

Enable multiple ethernet devices on your machine by adding this line to your /etc/lilo.conf, and re-run lilo: append = "ether=0,0,eth1"

---------- Original Message ----------------------------------
From: "marc " <marc@centraltx.com>
Reply-To: <marc@centraltx.com>
Date:  Wed,  5 Jun 2002 20:17:01 -0500

>I have another network out of a C180, and I stuck it into mine, but
>I cannot figure out how to get it to show up in Linux.
>
>Thanks,
>-Marc
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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On Thu, Jun 06, 2002 at 04:33:59PM +0200, Bruno Vidal wrote:
> 	Hi
> I've compiled a new kernel (without LVM), everything seems okay.
> My dump driver compiled right...but when I use insmod:
> hpfrcw12:~# insmod dump
> Using /lib/modules/2.4.18-pa35/kernel/drivers/dump/dump.o
> r_info 0x29 not handled
> ...
> So it is not coming from my modules. The modules are loaded,
> everything seems okay, but what means this messages ?

Some relocation type used in your .o files that modutils doesn't know
how to handle.  Generally modutils only handles the relocation types
that I have seen in modules to date.  New types might crop up as a
result of tool chain changes, or different compiler options, or possibly
kernel code changes might cause the toolchain to generate some other
relocation.

Are you using the standard woody toolchain for hppa?  Can you send me
off list your scsi/st.o, incase I can't reproduce here?

Everything might seem ok, but it could be some code paths or data
accesses wont be handled properly.

Thanks,
  Richard




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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] kdb_v21 branch updated to -pa26, and kallsyms cross-compile
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Hi Carlos,

Quoting "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>:

> > 
> > Well I come back to you to see what should be the useable kdb config
> (to
> > investigate the network problem with kernel compiled with gcc-3.1 or
> -3.2).
> > 
> > Mine is now:
> > CONFIG_MAGIC_SYSRQ=Y
> > CONFIG_KDB=Y
> > CONFIG_KDB_MODULES=Y
> > # CONFIG_KDB_OFF IS NOT SET
> > CONFIG_KALLSYMS=Y
> > 
> > Thanks a lot,
> >     Joel
> >
> 
> Does you system boot with kdb enabled?

Now I had a kdb kernel (cvs branch KDB_21) compile with gcc-3.2 and also #define
EARLY_BOOTUP_DEBUG 1. But this kernel hang on:
...
Search for devices...

And the green diode on the ide-cdrom of my b2000 stay on continuously.


Joel.

Here is the full output:
Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
palo_kernel=3/vmlinux-kdb-gcc32'
Selected kernel: /vmlinux-kdb-gcc32 from partition 3
ELF32 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 1989640 mediaptr 0x1000
Segment 1 load 002e6000 size 767080 mediaptr 0x1e7000
Segment 2 load 003a4000 size 396036 mediaptr 0x2a3000
Segment 3 load 00408000 size 8192 mediaptr 0x304000
Segment 4 load 00410000 size 32768 mediaptr 0x306000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.18-pa26 (root@palx2000) (gcc version 3.2 20020530
(experimental)) #1 Thu Jun 6 16:50:34 CEST 2002
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
unwind_init: start = 0x10387405, end = 0x103a1468, entries = 6662

Stack: 10408600 Cannot find unwind entry for 0x1010c9c0

Call Trace: 
        [<1010c880>]
Cannot find unwind entry for 0x1010c9c0

Code: 0e a0 10 93 4b d6 3f 91 0a 78 0a 13 6b 53 00 20 0a b6 04 14 
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005d00 00000481 00000000 00000002 77e93910 100000f0 00000008 000000b2
000000b2
vers  00000301
CPUID vers 17 rev 11 (0x0000022b)
capabilities 0x3
model 9000/785/B2000
Total Memory: 256 Mb
pagetable_init
On node 0 totalpages: 65536
zone(0): 65536 pages.
zone(1): 0 pages.
zone(2): 0 pages.
LCD display at f05d0008,f05d0000 registered
Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
palo_kernel=3/vmlinux-kdb-gcc32
Console: colour dummy device 160x64
Initialized PDC Console for debugging.
Calibrating delay loop... 799.53 BogoMIPS
Memory: 254520k available
kdb version 2.1 by Scott Lurndal, Keith Owens. Copyright SGI, All Rights Reserved
Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
Searching for devices...



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> -       table->end = base_addr + end[-1].region_end;
> +       table->end = base_addr + end[0].region_end - sizeof(struct unwind_table_entry);
>         table->table = (struct unwind_table_entry *)table_start;
>         table->length = end - start;
>         table->next = NULL;
> 
> Is this a gcc-ism we're seeing?
> Note-to-self: Look at .S produced from compiling unwind.c

It's definitely dangerous to use array indexes outside the bounds
of the array, particularly on the PA.  There can be problems with
space register selection, although I wouldn't expect this to be a in
the linux kernel.  You can avoid index insns with "-mdisable-indexing".
Let me know if you see anything strange in the assembler output.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Quoting Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>:

> 	Hi
> I've compiled a new kernel (without LVM), everything seems okay.
> My dump driver compiled right...but when I use insmod:


Great news.

Congratulation,
Joel


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Where is the best place to find a detailed explanation of
all the kernel options?



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Hello all!

  Thanks to Grant for pointing me to the testing ISOs

  The end result of a fresh install using these ISOs was that my J6700 is
working fine under a 64-bit kernel.

  I used the mini 70MB image.

  I will be re-installing soon as I'm fooling with software RAID mirrored
boot disks and the partitions are not laid out properly.  If the CD
maintainer wishes to try another ISO addressing my notes below I'll be
glad to give it another go.

  Thanks!

- Matt

ps.  This is my first go at PA-RISC/Linux, although I'm very familiar with
both Linux on other platforms and HP hardware.  Please forgive any
foot-in-mouth that may result.

  Notes:

-- Base install --

  It defaults to the 32-bit kernel.  I have 16GB in this machine and
wanted more than 2G swap, therefore I IPL'd palo to boot 0/vmlinux64.
Minor.  Is memory size known at this point?  If so, >4GB machines may want
to default to 64-bit.

  /dev/hda* is missing, therefore it was unable to find the CDROM for base
install.  I spawned a shell and did a MAKEDEV hda.

  LCD reads Linux 24.18-64 with installation kernel and heartbeat is
erratic.  Minor.

-- Install after reboot --

  The apt-get configuration *insisted* on looking for stable packages.  I
had to use the manual option to add these lines:

deb http://http.us.debian.org/debian woody main contrib
deb-src http://http.us.debian.org/debian woody main contrib
deb http://non-us.debian.org/debian-non-US woody/non-US main contrib
deb-src http://non-us.debian.org/debian-non-US woody/non-US main contrib

  Unfortuantely, manual editing of sources.list doesn't allow
specification of a proxy.  I'm behind a proxy.  Setting $http_proxy then
restarting base-config allowed me to finish.

-- After install --

  LCD is fine except heartbeat is extremely slow.  Is the speed dependent
on load? (:

  Haven't tried SMP.  The installed kernel is UP.

  No real stress testing performed as of yet.  No word on stability.

  Is gcc-3.1 worth putting in as default?

maz@pa-risc:/proc$ more cpuinfo
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8700 (PCX-W2)
cpu MHz         : 750.000000
model           : 9000/785/J6700
model name      : Duet W2
hversion        : 0x00005dd0
sversion        : 0x00000491
I-cache         : 768 KB
D-cache         : 1536 KB (WB)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
bogomips        : 1497.49





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Le jeudi 6 juin 2002, =E0 07:38 , Matthew Zahorik a =E9crit :

> Hello all!
>
>   Thanks to Grant for pointing me to the testing ISOs
>
>   The end result of a fresh install using these ISOs was that my J6700=20=

> is
> working fine under a 64-bit kernel.
>
>   I used the mini 70MB image.
>
>   I will be re-installing soon as I'm fooling with software RAID=20
> mirrored
> boot disks and the partitions are not laid out properly.  If the CD
> maintainer wishes to try another ISO addressing my notes below I'll be
> glad to give it another go.
There are regular updates of the netinst iso there:
http://pateam.esiee.fr/cd-images/testing/

You can find the corresponding lifimages there (to load kernel from=20
network, it's only 6M) :
http://pateam.esiee.fr/cd-images/lifimages/

They are regularly uploaded on ftp.parisc-linux.org, although it is not=20=

yet a cron'd job, so I have to do that by hand, therefore you might=20
sometimes find more recent ISOs on pateam than on p-l.o, shame on me :)
>
>   Thanks!
>
> - Matt
>
> ps.  This is my first go at PA-RISC/Linux, although I'm very familiar=20=

> with
> both Linux on other platforms and HP hardware.  Please forgive any
> foot-in-mouth that may result.
>
>   Notes:
>
> -- Base install --
>
>   It defaults to the 32-bit kernel.  I have 16GB in this machine and
> wanted more than 2G swap, therefore I IPL'd palo to boot 0/vmlinux64.
> Minor.  Is memory size known at this point?  If so, >4GB machines may=20=

> want
> to default to 64-bit.
>
>   /dev/hda* is missing, therefore it was unable to find the CDROM for=20=

> base
> install.  I spawned a shell and did a MAKEDEV hda.
This has been solved in the latest ISOs, thanks to Richard Hirst.
>
>   LCD reads Linux 24.18-64 with installation kernel and heartbeat is
> erratic.  Minor.
>
> -- Install after reboot --
>
>   The apt-get configuration *insisted* on looking for stable=20
> packages.  I
> had to use the manual option to add these lines:
>
> deb http://http.us.debian.org/debian woody main contrib
> deb-src http://http.us.debian.org/debian woody main contrib
> deb http://non-us.debian.org/debian-non-US woody/non-US main contrib
> deb-src http://non-us.debian.org/debian-non-US woody/non-US main =
contrib
>
>   Unfortuantely, manual editing of sources.list doesn't allow
> specification of a proxy.  I'm behind a proxy.  Setting $http_proxy =
then
> restarting base-config allowed me to finish.
This is very weird.
Have you tried 'set up another apt source', when installing ?
you might be prompted for all options there, after choosing 'http' or=20
'ftp' source...
>
> -- After install --
>
>   LCD is fine except heartbeat is extremely slow.  Is the speed=20
> dependent
> on load? (:
>
>   Haven't tried SMP.  The installed kernel is UP.
>
>   No real stress testing performed as of yet.  No word on stability.
>
>   Is gcc-3.1 worth putting in as default?
>
> maz@pa-risc:/proc$ more cpuinfo
> processor       : 0
> cpu family      : PA-RISC 2.0
> cpu             : PA8700 (PCX-W2)
> cpu MHz         : 750.000000
> model           : 9000/785/J6700
> model name      : Duet W2
> hversion        : 0x00005dd0
> sversion        : 0x00000491
> I-cache         : 768 KB
> D-cache         : 1536 KB (WB)
> ITLB entries    : 240
> DTLB entries    : 240 - shared with ITLB
> bogomips        : 1497.49
Anyway that's good news, and we will add this box to the list of=20
supported hardware!



Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Hi all,

I do not have the opportunity to run a 64bits kernel but for 32bits kernel I run
a patched kernel with last stable lvm-1.0.4 (and it is runing fine for at least
two month).
Humm which CONFIG_ parameter do I have to check to compile this src for 64-bits
kernel.
I can so try to see at least if it compiles well and report results.

Joel 

Quoting Patrick Caulfield <patrick@tykepenguin.com>:

> On Thu, Jun 06, 2002 at 02:44:42PM +0200, Bruno Vidal wrote:
> > 	Hi
> > I've started this morning to download latest CVS bits.
> > I've prepared a patche for this version from my dump driver,
> > and try to recompile everything, but I've found a problem
> > with LVM !!! See:
> 
> 
> Does LVM work on 64bit HP ?
> 
> I remember doing the ioctl32.c support for sparc64 some time ago but I
> can
> easily beleive that the mods to that file haven't been propogated to
> other
> 32/64bit systems - if you're feeling adventurous and really need LVM
> then you
> might be able to cut out those bits and drop them into the HP.
> 
> On the other hand you could try LVM2. I know LVM2 runs well on my 32bit
> HP
> machines and also on 64bit Alpha.
> 
> patrick
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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On Thu, Jun 06, 2002 at 08:34:08PM +0200, joel.soete@freebel.net wrote:
> Hi all,
> 
> I do not have the opportunity to run a 64bits kernel but for 32bits kernel I run
> a patched kernel with last stable lvm-1.0.4 (and it is runing fine for at least
> two month).
> Humm which CONFIG_ parameter do I have to check to compile this src for 64-bits
> kernel.
> I can so try to see at least if it compiles well and report results.

I don't know about the 64bit compile switches (I only have a 32bit HP box) but
to get LVM running you'll need to take all the bits from
arch/sparc64/kernel/ioctl32.c inside the 

#if defined(CONFIG_BLK_DEV_LVM) || defined(CONFIG_BLK_DEV_LVM_MODULE)

#endif

and replace the bits from arch/parisc/kernel/ioctl32.c with them. I suspect it
will work. If it does then get a patch together and put it into the CVS !

I'm pleased (though not very surprised) that LVM works OK on 32 bit machines.

patrick
aka caulfield@sistina.com



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> > -       table->end = base_addr + end[-1].region_end;

> > +       table->end = base_addr + end[0].region_end - sizeof(struct unwind_table_entry);
> >         table->table = (struct unwind_table_entry *)table_start;
> >         table->length = end - start;
> >         table->next = NULL;
> 
> It's definitely dangerous to use array indexes outside the bounds
> of the array, particularly on the PA.  There can be problems with
> space register selection, although I wouldn't expect this to be a in
> the linux kernel.  You can avoid index insns with "-mdisable-indexing".
> Let me know if you see anything strange in the assembler output.
> 
> Dave

That's what I imagined, but only now do I realize that the fix
is completely wrong (my bad).

It should really be something like:

table->end = base_addr + (&end[0] - sizeof(struct unwind_table_entry))->region_end;

I'm pretty sure that the end[-1] is causing a processor fault. 
Which then causes kdb to kick-in, but the unwind table isn't
built yet so it can't find a matching entry.

If this doesn't work, then how is one supposed to correctly get
the last table entry? :)

 (end == __stop___unwind)

  __start___unwind = .;         /* unwind info */
  .PARISC.unwind : { *(.PARISC.unwind) }
  __stop___unwind = .;

c.




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> It should really be something like:
> 
> table->end = base_addr + (&end[0] - sizeof(struct unwind_table_entry))->region_end;

You should be able to just do something like

struct unwind_table_entry *p = end;
...
table->end = base_addr + (--p)->region_end;

> 
> I'm pretty sure that the end[-1] is causing a processor fault. 
> Which then causes kdb to kick-in, but the unwind table isn't
> built yet so it can't find a matching entry.
> 
> If this doesn't work, then how is one supposed to correctly get
> the last table entry? :)
> 
>  (end == __stop___unwind)
> 
>   __start___unwind = .;         /* unwind info */
>   .PARISC.unwind : { *(.PARISC.unwind) }
>   __stop___unwind = .;

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Why do these messages flood my terminal after installing dhcp?

ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16


Thanks,
-Marc



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Quoting Patrick Caulfield <patrick@tykepenguin.com>:

...
> I don't know about the 64bit compile switches (I only have a 32bit HP
> box) but
> to get LVM running you'll need to take all the bits from
> arch/sparc64/kernel/ioctl32.c inside the 
> 
> #if defined(CONFIG_BLK_DEV_LVM) || defined(CONFIG_BLK_DEV_LVM_MODULE)
> 
> #endif
> 
> and replace the bits from arch/parisc/kernel/ioctl32.c with them. I
> suspect it
> will work. If it does then get a patch together and put it into the CVS
> !
Great, I will see.
> 
> I'm pleased (though not very surprised) that LVM works OK on 32 bit
> machines.

So surprised too ??


Many thanks,
    Joel


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Hi Marc,

Which kernel do you used?

It seems to me that I met a similar problem when I install my b2000 with dhcp.
IIRC the main reason was that I forgot to verify that bootp suport was included
in the kernel of my lifimage. (IIRC if you make distclean ; make oldconfig it
should included as default. You can verify with make menuconfig).

I hope it will help you,
    Joel

Quoting marc  <marc@centraltx.com>:

> Why do these messages flood my terminal after installing dhcp?
> 
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN
> skb: pf=2 (unowned) dev=lo len=328
> PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
> 
> 
> Thanks,
> -Marc
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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Xref: news.gmane.org gmane.linux.ports.parisc:15027

Quoting joel.soete@freebel.net:

> Quoting Patrick Caulfield <patrick@tykepenguin.com>:
> 
> ...
> > I don't know about the 64bit compile switches (I only have a 32bit HP
> > box) but
> > to get LVM running you'll need to take all the bits from
> > arch/sparc64/kernel/ioctl32.c inside the 
> > 
> > #if defined(CONFIG_BLK_DEV_LVM) || defined(CONFIG_BLK_DEV_LVM_MODULE)
> > 
> > #endif
> > 
> > and replace the bits from arch/parisc/kernel/ioctl32.c with them. I
> > suspect it
> > will work. If it does then get a patch together and put it into the
> CVS
> > !
> Great, I will see.
> > 
> > I'm pleased (though not very surprised) that LVM works OK on 32 bit
> > machines.
> 
> So surprised too ??
> 
> 
> Many thanks,
>     Joel
> 
> 
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Xref: news.gmane.org gmane.linux.ports.parisc:15028

On Fri, Jun 07, 2002 at 08:05:51AM +0200, joel.soete@freebel.net wrote:
> Quoting Patrick Caulfield <patrick@tykepenguin.com>:
> 
> > 
> > I'm pleased (though not very surprised) that LVM works OK on 32 bit
> > machines.
> 
> So surprised too ??

Well, a little. I've seen enough porting problems in my time that it always 
suprises me a little when a recompile on an untested platform "just works" !



patrick




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Quoting joel.soete@freebel.net:

> Quoting Patrick Caulfield <patrick@tykepenguin.com>:
> 
> ...

> So surprised too ??

Not anymore, in fact all seems already include in ioctl32.

So I just have to find how to compile a 64bits kernel. There should it be some
hack to bring it works.

See you later,
    joel


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On Fri, Jun 07, 2002 at 09:28:07AM +0200, joel.soete@freebel.net wrote:
> Quoting joel.soete@freebel.net:
> 
> > Quoting Patrick Caulfield <patrick@tykepenguin.com>:
> > 
> > ...
> 
> > So surprised too ??
> 
> Not anymore, in fact all seems already include in ioctl32.
> 
> So I just have to find how to compile a 64bits kernel. There should it be some
> hack to bring it works.

The stuff that's in there is for LVM0.8, whereas LVM 1.0 is in the rest of the
kernel. The structures have changed slightly which is why it won't compile ATM.

patrick




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Quoting Patrick Caulfield <patrick@tykepenguin.com>:

> 
> The stuff that's in there is for LVM0.8, whereas LVM 1.0 is in the rest
> of the
> kernel. The structures have changed slightly which is why it won't
> compile ATM.
> 
Ok I will have a more detailed look so.

Tanks again,
    Joel


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	Hi
I think I found where the problem is. In order to add debug info
for P4, I've add in the main Makefile: -gdwarf-2. I've remove this
debug option, and now everything is okay. I think that this option is
creating too much debug informations. Does someone has already try
to investiguate a solution in order to add debug information, without
creating soooo much information ?

	Thanks.

Richard Hirst wrote:
> 
> On Thu, Jun 06, 2002 at 04:33:59PM +0200, Bruno Vidal wrote:
> >       Hi
> > I've compiled a new kernel (without LVM), everything seems okay.
> > My dump driver compiled right...but when I use insmod:
> > hpfrcw12:~# insmod dump
> > Using /lib/modules/2.4.18-pa35/kernel/drivers/dump/dump.o
> > r_info 0x29 not handled
> > ...
> > So it is not coming from my modules. The modules are loaded,
> > everything seems okay, but what means this messages ?
> 
> Some relocation type used in your .o files that modutils doesn't know
> how to handle.  Generally modutils only handles the relocation types
> that I have seen in modules to date.  New types might crop up as a
> result of tool chain changes, or different compiler options, or possibly
> kernel code changes might cause the toolchain to generate some other
> relocation.
> 
> Are you using the standard woody toolchain for hppa?  Can you send me
> off list your scsi/st.o, incase I can't reproduce here?
> 
> Everything might seem ok, but it could be some code paths or data
> accesses wont be handled properly.
> 
> Thanks,
>   Richard

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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> 	Hi
> I think I found where the problem is. In order to add debug info
> for P4, I've add in the main Makefile: -gdwarf-2. I've remove this
> debug option, and now everything is okay. I think that this option is
> creating too much debug informations. Does someone has already try
> to investiguate a solution in order to add debug information, without
> creating soooo much information ?
> 
> 	Thanks.
>

GCC 3.2 is the only branch that has dwarf2 support for HPPA?
You'll have to live with stabs.

ATM I'm trying to find out why 3.1/3.2 produces slightly twisted
kernel net code, and subsequently causing an oops.

c. 




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From: "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Verify stack trace address - Joel
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Joel,

> Here is the full output:
> Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
> palo_kernel=3/vmlinux-kdb-gcc32'
> Selected kernel: /vmlinux-kdb-gcc32 from partition 3
> ELF32 executable
> Entry 00100000 first 00100000 n 5
> Segment 0 load 00100000 size 1989640 mediaptr 0x1000
> Segment 1 load 002e6000 size 767080 mediaptr 0x1e7000
> Segment 2 load 003a4000 size 396036 mediaptr 0x2a3000
> Segment 3 load 00408000 size 8192 mediaptr 0x304000
> Segment 4 load 00410000 size 32768 mediaptr 0x306000
> Branching to kernel entry point 0x00100000.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org
> 
> Linux version 2.4.18-pa26 (root@palx2000) (gcc version 3.2 20020530
> (experimental)) #1 Thu Jun 6 16:50:34 CEST 2002
> FP[0] enabled: Rev 1 Model 16
> The 32-bit Kernel has started...
> unwind_init: start = 0x10387405, end = 0x103a1468, entries = 6662
> 
> Stack: 10408600 Cannot find unwind entry for 0x1010c9c0
> 
> Call Trace: 
>         [<1010c880>]
            ^^^^^^^^

> Cannot find unwind entry for 0x1010c9c0
                               ^^^^^^^^^^

Can you find that address in your System.map to verify where that is?
If it's in unwind_table_init then the 'end[-1]' fix might be what is
needed.

 
> Code: 0e a0 10 93 4b d6 3f 91 0a 78 0a 13 6b 53 00 20 0a b6 04 14 
> Initialized PDC Console for debugging.
> Determining PDC firmware type: System Map.
> model 00005d00 00000481 00000000 00000002 77e93910 100000f0 00000008 000000b2
> 000000b2
> vers  00000301
> CPUID vers 17 rev 11 (0x0000022b)
> capabilities 0x3
> model 9000/785/B2000
> Total Memory: 256 Mb
> pagetable_init
> On node 0 totalpages: 65536
> zone(0): 65536 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> LCD display at f05d0008,f05d0000 registered
> Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
> palo_kernel=3/vmlinux-kdb-gcc32
> Console: colour dummy device 160x64
> Initialized PDC Console for debugging.
> Calibrating delay loop... 799.53 BogoMIPS
> Memory: 254520k available
> kdb version 2.1 by Scott Lurndal, Keith Owens. Copyright SGI, All Rights Reserved
> Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)
> Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
> Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
> Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
> Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
> Searching for devices...
>

For some reason device detection becomes bogus and broken with
kdb enabled. So far we've seen SCSI, Serial, PCI/EISA all die with
kdb enabled. Maybe they're not dead and just moving _really_ slowly.

I'm going camping this weekend, so it's anyones game until Monday
afternoon (which I have off too!!) :)

c. 




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> > It's definitely dangerous to use array indexes outside the bounds
> > of the array, particularly on the PA.  There can be problems with
> > space register selection, although I wouldn't expect this to be a in
> > the linux kernel.  You can avoid index insns with "-mdisable-indexing".
> > Let me know if you see anything strange in the assembler output.
> > 
> > Dave

The following is the output using gcc 3.0.4.

--- unwind-orig.c       Fri Jun  7 11:01:22 2002
+++ unwind.c    Fri Jun  7 09:23:17 2002
@@ -106,7 +106,7 @@
        table->base_addr = base_addr;
        table->gp = gp;
        table->start = base_addr + start[0].region_start;
-       table->end = base_addr + end[-1].region_end;
+       table->end = base_addr + (--end)->region_end;
        table->table = (struct unwind_table_entry *)table_start;
        table->length = end - start;
        table->next = NULL;

--- unwind-orig.s       Fri Jun  7 11:01:33 2002
+++ unwind.s    Fri Jun  7 09:24:55 2002
@@ -7,22 +7,23 @@
        .CALLINFO FRAME=0,NO_CALLS
        .ENTRY
        stw %r24,12(%r26)
-       ldw -52(%r30),%r21
+       ldw -52(%r30),%r22
        stw %r25,4(%r26)
        stw %r23,8(%r26)
-       ldw 0(%r21),%r19
-       ldw -56(%r30),%r22
+       ldw 0(%r22),%r19
+       ldw -56(%r30),%r20
        addl %r24,%r19,%r19
        stw %r19,16(%r26)
-       sub %r22,%r21,%r20
-       ldw -12(%r22),%r19
-       extrs %r20,27,28,%r20
+       ldo -16(%r20),%r20
+       ldw 4(%r20),%r19
+       sub %r20,%r22,%r21
+       extrs %r21,27,28,%r21
        addl %r24,%r19,%r24
-       stw %r20,28(%r26)
        stw %r24,20(%r26)
+       stw %r21,28(%r26)
        stw %r0,0(%r26)
        bv %r0(%r2)
-       stw %r21,24(%r26)
+       stw %r22,24(%r26)
        .EXIT
        .PROCEND
 .Lfe1:

Aside from some register juggling, the only difference is
that we now use 'ldo,ldw,sub,extrs' instead of 'sub,ldw,extrs'.
The question is: Can this do bad things?

I'll have time on Monday to go through it thoroughly.

c.




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Hi C,

Two news (a bad and a good as usual).

I had actually an hardware problem with this test b2000 so that I could not any
more reboot it.
So the bad news is that I could not verify anything right now.

For the good news is that we have maintenance contract and the problem occurs
now during the launch of stm under hpux.

So I can open a call and pieces are already order to repair it Monday.

Quoting "Carlos O'Donell Jr." <carlos@baldric.uwo.ca>:

> > 
> > Stack: 10408600 Cannot find unwind entry for 0x1010c9c0
> > 
> > Call Trace: 
> >         [<1010c880>]
>             ^^^^^^^^
> 
> > Cannot find unwind entry for 0x1010c9c0
>                                ^^^^^^^^^^
> 
> Can you find that address in your System.map to verify where that is?
> If it's in unwind_table_init then the 'end[-1]' fix might be what is
> needed.
> 

I will check it asap and let you inform

> 
> For some reason device detection becomes bogus and broken with
> kdb enabled. So far we've seen SCSI, Serial, PCI/EISA all die with
> kdb enabled. Maybe they're not dead and just moving _really_ slowly.
> 
> I'm going camping this weekend, so it's anyones game until Monday
> afternoon (which I have off too!!) :)
> 
Have a nice week-end,
    Joel


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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] Probleme while compiling last CVS kernel.
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Hi all,

Here is attached the patch to uptdate lvm structures in ioctl32.c
(arch/parisc/kernel).

Can somebody check in for me.

I check it (Ok) for 32bit kernel on my b180l.

Patrick,

Don't you see anything else to verify?

Bruno,

Could you see if it compiles now well for 64bits.

Thanks in advance for all,
    Joel

Quoting Patrick Caulfield <patrick@tykepenguin.com>:

> On Fri, Jun 07, 2002 at 09:28:07AM +0200, joel.soete@freebel.net wrote:
> > Quoting joel.soete@freebel.net:
> > 
> > > Quoting Patrick Caulfield <patrick@tykepenguin.com>:
> > > 
> > > ...
> > 
> > > So surprised too ??
> > 
> > Not anymore, in fact all seems already include in ioctl32.
> > 
> > So I just have to find how to compile a 64bits kernel. There should it
> be some
> > hack to bring it works.
> 
> The stuff that's in there is for LVM0.8, whereas LVM 1.0 is in the rest
> of the
> kernel. The structures have changed slightly which is why it won't
> compile ATM.
> 
> patrick
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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---MOQ102346388941a5794325967400bcc584b45f0161e6--



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Subject: Re: [parisc-linux] kdb getting healthier? (PCI guru needed, that's you willy!)
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> -       ldw -12(%r22),%r19
> -       extrs %r20,27,28,%r20
> +       ldo -16(%r20),%r20
> +       ldw 4(%r20),%r19

> Aside from some register juggling, the only difference is
> that we now use 'ldo,ldw,sub,extrs' instead of 'sub,ldw,extrs'.
> The question is: Can this do bad things?

The only possible difference is the space register selection could be
different for the ldw insns in the old code versus the new because the
pointer values in the base differ by 16.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> GCC 3.2 is the only branch that has dwarf2 support for HPPA?
> You'll have to live with stabs.

That's not quite true.  You can generate dwarf2 debug information on
previous versions.  3.2 is the first version with working support
for eh frame information.  By working, I mean that the C++ exception
support appears to work for normal exceptions.  I don't really know
if gdb is using this information.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: Re: [parisc-linux] kdb getting healthier? (PCI guru needed, that's you willy!)
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On Fri, Jun 07, 2002 at 12:42:37PM -0400, John David Anglin wrote:
> The only possible difference is the space register selection could be
> different for the ldw insns in the old code versus the new because the
> pointer values in the base differ by 16.

but not in the kernel because all space registers are set to 0.

-- 
Revolutions do not require corporate support.



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Subject: Re: [parisc-linux] kdb getting healthier? (PCI guru needed, that's you willy!)
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> On Fri, Jun 07, 2002 at 12:42:37PM -0400, John David Anglin wrote:
> > The only possible difference is the space register selection could be
> > different for the ldw insns in the old code versus the new because the
> > pointer values in the base differ by 16.
> 
> but not in the kernel because all space registers are set to 0.

Are they always 0 or are there situations where drivers change a space
register value?  If they never change, then the memory limit is still
3GB.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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On Fri, Jun 07, 2002 at 01:01:29PM -0400, John David Anglin wrote:
> Are they always 0 or are there situations where drivers change a space
> register value?  If they never change, then the memory limit is still
> 3GB.

Nobody changes sr4-7 (the default space registers).  Some drivers play
with sr1.  We use sr3 to access the user's process.  There's no problem
with accessing 4GB in either the kernel or the user process (though
we limit to 3.75GB currently, i believe, just to prevent unfortunate
accidents).

-- 
Revolutions do not require corporate support.



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Subject: [parisc-linux] Sources browsing tool?
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Hi all,

Can you advise me some browsing tools which would allowing me to find quickly
where a variable, a function is define; where is used,... in this big amount
source which represent kernel now (find is not always easy).

I find well a work of reverse engineering (rigiedit) of the kernel but not for 2.4.
And unfortunately sources (tcl/tk iirc) do not seems to be available to port on
hppa. 

Thanks a lot in advance,
    Joel


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On Fri, 2002-06-07 at 18:23, joel.soete@freebel.net wrote:
> Hi all,
> 
> Can you advise me some browsing tools which would allowing me to find quickly
> where a variable, a function is define; where is used,... in this big amount
> source which represent kernel now (find is not always easy).
> 
> I find well a work of reverse engineering (rigiedit) of the kernel but not for 2.4.
> And unfortunately sources (tcl/tk iirc) do not seems to be available to port on
> hppa. 

Try the Linux cross reference - http://lxr.linux.no




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Subject: Re: [parisc-linux] Probleme while compiling last CVS kernel.
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On Fri, Jun 07, 2002 at 05:31:29PM +0200, joel.soete@freebel.net wrote:
> Hi all,
> 
> Here is attached the patch to uptdate lvm structures in ioctl32.c
> (arch/parisc/kernel).
> 
> Can somebody check in for me.
> 
> I check it (Ok) for 32bit kernel on my b180l.
> 
> Patrick,
> 
> Don't you see anything else to verify?
> 

Looks good to me. I patched it in and then diffed it against the sparc64 one and
there were no LVM differences.

patrick




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joel.soete@freebel.net wrote:
> Hi all,
> 
> Can you advise me some browsing tools which would allowing me to find quickly
> where a variable, a function is define; where is used,... in this big amount
> source which represent kernel now (find is not always easy).
> 
> I find well a work of reverse engineering (rigiedit) of the kernel but not for 2.4.
> And unfortunately sources (tcl/tk iirc) do not seems to be available to port on
> hppa.

If you are using Emacs as your editor, you could use TAGS to locate 
definitions, etc.
This script may need editing:

##
# Build an ETAG file of the linux kernel sources.
ARCH=parisc

find arch/$ARCH drivers fs include/{asm-$ARCH,linux,net,scsi,video} \
      init ipc kernel lib mm net -name '*.[chS]' -print | sort | etags -
##

I used this quite a while ago, when I was writing a driver. You will 
need to consult the emacs manual on how to use tags.
-- 
     Rafael




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> > Hi all,
> > Can you advise me some browsing tools which would allowing me to find quickly
> > where a variable, a function is define; where is used,... in this big amount
> > source which represent kernel now (find is not always easy).
> > I find well a work of reverse engineering (rigiedit) of the kernel but not for 2.4.
> > And unfortunately sources (tcl/tk iirc) do not seems to be available to port on
> > hppa. 
> 
> Try the Linux cross reference - http://lxr.linux.no
>

AAP Project has a good list:
http://www.a-a-p.org/tools_browse.html

And if you pray to emacs then 'ecb' will be of interest ;)
http://ecb.sourceforge.net/

c. 




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"marc " wrote:
> Where is the best place to find a detailed explanation of
> all the kernel options?

parisc-linux FAQ? one of the last questions has a URL for that.
http://www.parisc-linux.org/

grant



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I'm sorry, perhaps I wasn't clear, not the kernel boot parameters,
but the kernel parameters in the 'make menuconfig' part
of configuring a kernel.

-Marc

---------- Original Message ----------------------------------
From: Grant Grundler <grundler@dsl2.external.hp.com>
Date:  Sat, 08 Jun 2002 01:20:50 -0600

>"marc " wrote:
>> Where is the best place to find a detailed explanation of
>> all the kernel options?
>
>parisc-linux FAQ? one of the last questions has a URL for that.
>http://www.parisc-linux.org/
>
>grant
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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On Sat, Jun 08, 2002 at 10:43:41AM -0500, marc  wrote:
> I'm sorry, perhaps I wasn't clear, not the kernel boot parameters,
> but the kernel parameters in the 'make menuconfig' part
> of configuring a kernel.

each option has helptext associated with it.  iirc, in menuconfig,
you press ?  to access it.  or maybe it's `h'.  i don't use menuconfig
myself any more.

-- 
Revolutions do not require corporate support.



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marc wrote:
> I'm sorry, perhaps I wasn't clear, not the kernel boot parameters,
> but the kernel parameters in the 'make menuconfig' part
> of configuring a kernel.

Select the "Help" option in menuconfig for a description of the option 
currently highlighted. As for a detailed description you would have to 
read the source code or browse the Documentation directory in the kernel 
sources.

-- 
      Rafael




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On Wed, 5 Jun 2002, M. Grabert wrote:

> On Tue, 4 Jun 2002, B. Douglas Hilton wrote:
>=20
> > Install Notes: "gpm" doesn't seem to work for me, although I
> > am running a Dexxa Optical Wheel Mouse through a KVM switch.
> > I just set X to "PS/2" and it worked ( but no mouse wheel ).
>=20
> Try ImPS/2 or ExplorerPS/2 instead and add a line
>=20
> Option "ZAxisMapping" "4 5"
>=20
> in the InputDevice Section

On my 712-60, I've had to call my mouse "ps2fu" in gpm.conf but enabling th=
e
same repeater didn't get X to use it.  Anyhow, the problem with fups2 is th=
at
every time I exit Gnome and X is restarted by gdm, the mouse in X no longer
works so I have to ctrl-alt-back kill X to reinitialize the mouse again.

Meanwhile, that same fups2 driver seems to work as expected on consoles and
never caused me any problem.

--=20
Martin-=C9ric Racine, Helsinki, Finland.
http://www.pp.fishpool.fi/~q-funk/
+358 41 474 0289




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Martin-=C9ric Racine wrote: =

> On my 712-60, I've had to call my mouse "ps2fu" in gpm.conf but enablin=
g the
> same repeater didn't get X to use it.  Anyhow, the problem with fups2 i=
s that
> every time I exit Gnome and X is restarted by gdm, the mouse in X no lo=
nger
> works so I have to ctrl-alt-back kill X to reinitialize the mouse again=
=2E

There may be problems, if you run gpm while running X. You can try to swi=
tch of
gpm when running X. =


Another possibility is to use the gpm repeater for X as well. =

Try to change your X11 mouse configuration to the following one, and make=
 sure
gpm runs while using X.

Section "Pointer"
  Protocol              "MouseSystems"
  Device                "/dev/gpmdata"
  SampleRate            60
  BaudRate              1200
EndSection


Berthold



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Hello PA-RISC community,

What is the status of the drivers or hardware docu for the proprietary
interfaces of for example the E55 (9000/856).

Trying to use a 40GB disk on my E55 gives many problems now under HP-UX.
LVM will not accept this disk, doing a fs on the disk and mounting it,
is also not working (e.g. I/O errors....). I need LINUX !!

With friendly regards
Christoph P.



-- 
-------------------------------------------------------
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company:	christoph.plattner@alcatel.at




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2 Quick questions,

1. Is it possible to get the 24bit colour recovery to work with 
PARISC-Linux on a 715/100 ?

2. when running pppconfig, the said 715/100 tries to detect the modem and 
then hangs. It's heartbeat goes out and it dumps some output top the sti ( 
not had a chance to write it down yet ). is there any known issues with 
either pppconfig or the serial drivers in relation to the 715?

Cheers

Rob




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This is a multi-part message in MIME format.
--------------9EB8D9FE193EB5B2AA95E508
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	Hi
I'm loosing my nerves. I'm stuck with it since two days, and I don't understand :-(
My ioctls are running fine with 32bits kernel. I thought I've done everything fine,
but when compiling it with 64 bits kernel it fail with:
sys32_ioctl: Unknown cmd fd(3) cmd(80047001) arg(00000803)
So my question is: what is the difference between 32bits and 64bits kernel about
the ioctls ? 

I think that arch/parisc/kernel/ioctl32.c is used with 64bits and not with 32bits, right ?

If yes, what I need to do more than:
#if defined(CONFIG_DUMP) || defined(CONFIG_DUMP_MODULE)
COMPATIBLE_IOCTL(DIOSDUMPDEV);
COMPATIBLE_IOCTL(DIOGDUMPDEV);
COMPATIBLE_IOCTL(DIOSDUMPLEVEL);
COMPATIBLE_IOCTL(DIOGDUMPLEVEL);
COMPATIBLE_IOCTL(DIOSDUMPFLAGS);
COMPATIBLE_IOCTL(DIOGDUMPFLAGS);
COMPATIBLE_IOCTL(DIOSDUMPCOMPRESS);
COMPATIBLE_IOCTL(DIOGDUMPCOMPRESS);
COMPATIBLE_IOCTL(DIOGDINDEX);
#endif /* DUMP */

	thanks.
 
-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Pb with ioctl and 64bits
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> I'm loosing my nerves. I'm stuck with it since two days, and I don't understand :-(
> My ioctls are running fine with 32bits kernel. I thought I've done everything fine,
> but when compiling it with 64 bits kernel it fail with:
> sys32_ioctl: Unknown cmd fd(3) cmd(80047001) arg(00000803)
> So my question is: what is the difference between 32bits and 64bits kernel about
> the ioctls ? 

as you discovered, there's some translation that is needed for 64-bit
kernels because userspace is always 32-bits. So when running a 64-bit
kernel, some ioctls need to be translated via the logic in ioctl32.c.
The situation is similar to sparc32/sparc64.

> I think that arch/parisc/kernel/ioctl32.c is used with 64bits and not with 32bits, right ?

yes.

> If yes, what I need to do more than:
> #if defined(CONFIG_DUMP) || defined(CONFIG_DUMP_MODULE)
> COMPATIBLE_IOCTL(DIOSDUMPDEV);
> COMPATIBLE_IOCTL(DIOGDUMPDEV);
> COMPATIBLE_IOCTL(DIOSDUMPLEVEL);
> COMPATIBLE_IOCTL(DIOGDUMPLEVEL);
> COMPATIBLE_IOCTL(DIOSDUMPFLAGS);
> COMPATIBLE_IOCTL(DIOGDUMPFLAGS);
> COMPATIBLE_IOCTL(DIOSDUMPCOMPRESS);
> COMPATIBLE_IOCTL(DIOGDUMPCOMPRESS);
> COMPATIBLE_IOCTL(DIOGDINDEX);
> #endif /* DUMP */

what are the ioctl definitions used by the dump driver? (the _IO{,R,W,RW}
values). From the output you pasted:

> sys32_ioctl: Unknown cmd fd(3) cmd(80047001) arg(00000803)

that ioctl seems to be _IOW('p', 1, int) (or unsigned int or so)?

randolph




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Subject: [parisc-linux] SCSI driver for E-class servers - SPIFI ?
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Hello to all !

Is the HP E55 SCSI controller a HP SPIFI ?
I found that on the mailing archive ...
Is this correct ?

Further I found out, that NetBSD has one HP SPIFI SCSI driver ?
Does anyone know, if this driver can help use for the E55 or
similar machines.

The driver is in the file:
     ./syssrc/sys/arch/newsmips/apbus/spifi.c 
and
     ./syssrc/sys/arch/newsmips/apbus/spifireg.h

Answer is welcome

Christoph


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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=?iso-8859-1?Q?Martin-=C9ric_Racine?= wrote:
> Anyhow, the problem with fups2 is that
> every time I exit Gnome and X is restarted by gdm, the mouse in X no longer
> works so I have to ctrl-alt-back kill X to reinitialize the mouse again.

I had the same problem with B180 or C3000.
Unfortunately I don't recall which.

But since gdm is one of the first things I remove, it doesn't bother me.

grant



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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] pppconfig & 24bit colour
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s-clarob@st-aidans.cumbria.sch.uk writes...

> 2 Quick questions,
> 
> 1. Is it possible to get the 24bit colour recovery to work with 
> PARISC-Linux on a 715/100 ?

The Color Recovery extension is only available in the HP-UX Xserver. No one 
has been able to run the HP-UX Xserver on palinux yet.

> 2. when running pppconfig, the said 715/100 tries to detect the modem and 
> then hangs. It's heartbeat goes out and it dumps some output top the sti ( 
> not had a chance to write it down yet ). is there any known issues with 
> either pppconfig or the serial drivers in relation to the 715?

I seem to remember a problem with PPP, check the list archive. Updating 
your kernel is probably a good idea too.

-- 
Matt Taggart
taggart@fc.hp.com





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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 712-60 XFree86 mouse driver problems
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On Sun, 9 Jun 2002, b.gunreben wrote:

> Martin-=C9ric Racine wrote:=20
> > On my 712-60, I've had to call my mouse "fups2" in gpm.conf but enablin=
g the
> > same repeater didn't get X to use it.

> There may be problems, if you run gpm while running X. You can try to swi=
tch
> of gpm when running X.  Another possibility is to use the gpm repeater fo=
r X

Please re-read what I have written.  Repeater fails.

--=20
Martin-=C9ric Racine, Helsinki, Finland.
http://www.pp.fishpool.fi/~q-funk/
+358 41 474 0289




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Subject: [parisc-linux] Re: 712-60 XFree86 mouse driver problems
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On Mon, 10 Jun 2002, Grant Grundler wrote:

> =3D?iso-8859-1?Q?Martin-=3DC9ric_Racine?=3D wrote:
> > Anyhow, the problem with fups2 is that
> > every time I exit Gnome and X is restarted by gdm, the mouse in X no lo=
nger
> > works so I have to ctrl-alt-back kill X to reinitialize the mouse again=
=2E
>=20
> I had the same problem with B180 or C3000.  But since gdm is one of the
> first things I remove, it doesn't bother me.

The same problem occurs with KDM or XDM.  Either way, I need a display mana=
ger;
loging in at the console and typing "startx" manually is not an option here=
=2E

--=20
Martin-=C9ric Racine, Helsinki, Finland.
http://www.pp.fishpool.fi/~q-funk/
+358 41 474 0289




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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] SCSI driver for E-class servers - SPIFI ?
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Christoph Plattner wrote:
> Hello to all !
> 
> Is the HP E55 SCSI controller a HP SPIFI ?
> I found that on the mailing archive ...Is this correct ?

Yes. HP-PB SE SCSI uses SPIFI-3.
HP-PB FWD SCSI uses i860 + SPIFI-4.

> Does anyone know, if this driver can help use for the E55 or
> similar machines.
> 
> The driver is in the file:
>      ./syssrc/sys/arch/newsmips/apbus/spifi.c 
> and
>      ./syssrc/sys/arch/newsmips/apbus/spifireg.h

I need a URL. AFAIK, SPIFI if the only family of SCSI
chips made by HP.

grant



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Subject: Re: [parisc-linux] SCSI driver for E-class servers - SPIFI ?
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Ok, the URL of NetBSD CVS repository:

http://cvsweb.netbsd.org/bsdweb.cgi    (CVS web interface)

This is the full CVS web path of this driver.

http://cvsweb.netbsd.org/bsdweb.cgi/syssrc/sys/arch/newsmips/apbus/

I have checked out the NetBSD tree on my disk, CVS ROOT was
:pserver:anoncvs@anoncvs.netbsd.org:/cvsroot

I hope we can have progress on this machine ...
Christoph P.


Grant Grundler wrote:
> 
> Christoph Plattner wrote:
> > Hello to all !
> >
> > Is the HP E55 SCSI controller a HP SPIFI ?
> > I found that on the mailing archive ...Is this correct ?
> 
> Yes. HP-PB SE SCSI uses SPIFI-3.
> HP-PB FWD SCSI uses i860 + SPIFI-4.
> 
> > Does anyone know, if this driver can help use for the E55 or
> > similar machines.
> >
> > The driver is in the file:
> >      ./syssrc/sys/arch/newsmips/apbus/spifi.c
> > and
> >      ./syssrc/sys/arch/newsmips/apbus/spifireg.h
> 
> I need a URL. AFAIK, SPIFI if the only family of SCSI
> chips made by HP.
> 
> grant

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] 2.4.18-pa35 SMP process hangs on a J200
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Hello parisc-linux hackers,


I have heard of SMP hangs on the A500 from the ESIEE and Grant's system,
so I installed the 2.4.18-pa35 on a dual processor J200 and tried to
duplicate the hangs and hopefully provide a different perspective on the
hang.

The good and bad news is that I can duplicate the process hangs on the 
J200 by simply running two instances of the setiathome program.

Digging into the system a bit, here is what I found:

	* The setiathome process that hung (PID 326) will hang any other
	  process that tries to access /proc/326/*.  (This is why top,
	  ps, etc all hang after the process gets stuck).

	* None of the other processes appear to be stuck. (ie. I can 
	  access the /proc/PID/* information and the command will 	  return).

	* The processes that hang while trying to read from the stuck 
	  process go into a disk sleep and never return.

		This is the a "hung" process that access the stuck 		process.

		# cat status 
		Name:	ps
		State:	D (disk sleep)
		Tgid:	1362
		Pid:	1362
		PPid:	1359
		TracerPid:	0
		Uid:	0	0	0	0
		Gid:	0	0	0	0
		FDSize:	256
		Groups:	0 
		VmSize:	    3032 kB
		VmLck:	       0 kB
		VmRSS:	     880 kB
		VmData:	    1136 kB
		VmStk:	       0 kB
		VmExe:	      68 kB
		VmLib:	    1420 kB
		SigPnd:	0000000000000000
		SigBlk:	0000000000000000
		SigIgn:	8000000000000000
		SigCgt:	000000007f2ffef9
		CapInh:	0000000000000000
		CapPrm:	00000000fffffeff
		CapEff:	00000000fffffeff


It appears that the stuck process also affected my serial console login,
so I am not able to gather more information using the magic-sysrq
commands.  I will try to reboot the system, and see if I can keep a
console up and use the magic-sysrq commands next time the process gets
stuck.


Is this the same behavior people are seeing on the SMP A500's?  Any
ideas on where to continue debugging this (possible deadlock problem?
Can I see what locks are being held by the stuck process? etc..)  I will
continue to poke around and see what I can find also.

Thanks,

- Ryan





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> Is this the same behavior people are seeing on the SMP A500's?  

yes, this is what i have seen too.

> Can I see what locks are being held by the stuck process? etc..)  I will
> continue to poke around and see what I can find also.

Paul Bame has done some work on showing wait channels that might be
useful.

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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	Hi
Yes, I've follow nearly the same than "PA_PERF_ON", "PA_PERF_OFF".
I've used:
#define DIOSDUMPDEV             _IOW('p',1,unsigned long)       /* set the dump device                 */
#define DIOGDUMPDEV             _IOR('p',2,unsigned long)       /* get the dump device                 */
#define DIOSDUMPLEVEL           _IOW('p',3,unsigned long)       /* set the dump level                  */
#define DIOGDUMPLEVEL           _IOR('p',4,unsigned long)       /* get the dump level                  */
#define DIOSDUMPFLAGS           _IOW('p',5,unsigned long)       /* set the dump flag parameters        */
#define DIOGDUMPFLAGS           _IOR('p',6,unsigned long)       /* get the dump flag parameters        */
#define DIOSDUMPCOMPRESS        _IOW('p',7,unsigned long)       /* set the dump compress level         */
#define DIOGDUMPCOMPRESS        _IOR('p',8,unsigned long)       /* get the dump compress level         */
#define DIOGDINDEX              _IOR('p',9,unsigned long)       /* get the number of configured device */ 

But I don't understand what's wrong, does I need to declare something else somewhere else ????

Randolph Chung wrote:
> 
> > I'm loosing my nerves. I'm stuck with it since two days, and I don't understand :-(
> > My ioctls are running fine with 32bits kernel. I thought I've done everything fine,
> > but when compiling it with 64 bits kernel it fail with:
> > sys32_ioctl: Unknown cmd fd(3) cmd(80047001) arg(00000803)
> > So my question is: what is the difference between 32bits and 64bits kernel about
> > the ioctls ?
> 
> as you discovered, there's some translation that is needed for 64-bit
> kernels because userspace is always 32-bits. So when running a 64-bit
> kernel, some ioctls need to be translated via the logic in ioctl32.c.
> The situation is similar to sparc32/sparc64.
> 
> > I think that arch/parisc/kernel/ioctl32.c is used with 64bits and not with 32bits, right ?
> 
> yes.
> 
> > If yes, what I need to do more than:
> > #if defined(CONFIG_DUMP) || defined(CONFIG_DUMP_MODULE)
> > COMPATIBLE_IOCTL(DIOSDUMPDEV);
> > COMPATIBLE_IOCTL(DIOGDUMPDEV);
> > COMPATIBLE_IOCTL(DIOSDUMPLEVEL);
> > COMPATIBLE_IOCTL(DIOGDUMPLEVEL);
> > COMPATIBLE_IOCTL(DIOSDUMPFLAGS);
> > COMPATIBLE_IOCTL(DIOGDUMPFLAGS);
> > COMPATIBLE_IOCTL(DIOSDUMPCOMPRESS);
> > COMPATIBLE_IOCTL(DIOGDUMPCOMPRESS);
> > COMPATIBLE_IOCTL(DIOGDINDEX);
> > #endif /* DUMP */
> 
> what are the ioctl definitions used by the dump driver? (the _IO{,R,W,RW}
> values). From the output you pasted:
> 
> > sys32_ioctl: Unknown cmd fd(3) cmd(80047001) arg(00000803)
> 
> that ioctl seems to be _IOW('p', 1, int) (or unsigned int or so)?
> 
> randolph

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Subject: Re: [parisc-linux] 2.4.18-pa35 SMP process hangs on a J200
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To: Ryan Bradetich <rbradetich@uswest.net>
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Le mardi 11 juin 2002, =E0 07:36 , Ryan Bradetich a =E9crit :

>
> Digging into the system a bit, here is what I found:
>
> 	* The setiathome process that hung (PID 326) will hang any other
> 	  process that tries to access /proc/326/*.  (This is why top,
> 	  ps, etc all hang after the process gets stuck).
Here we run a setiathome client, a distributed.net client, and from=20
times to times we build isos.

This is consistent with what we experienced, but the first time we=20
remarked a hung (after 44 days of uptime), all proccesses that try to=20
get info about running processes, such as 'top', 'ps' or even a 'ls=20
/proc/PID/' would hang. 'w' would also hang, but not 'uptime'. It was=20
with -pa16.

The second time we got a hang, with -pa33, 'ps -ef' hung just before=20
displaying info about the setiathome client.

Another interesting thing is that after issuing any of these commands,=20=

the loadavg increased by 1, ie if we got a loadavg of 2.00 before trying=20=

a ps, a w and a ls /proc/PID, we would get a loadavg of 5.00 after these=20=

3 commands.
>
> 	* None of the other processes appear to be stuck. (ie. I can
> 	  access the /proc/PID/* information and the command will 	 =
 return).
We cannot access such info, alas.
>
>
Anyway, as Randolph Chung said, Paul Bame's work might be interesting...



Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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	Haaaaa, I've succeded at the end. Now ioctls are working fine.
Sorry, I beg your pardon, the probleme was coming from the manner I
declare my ioctls cmds. With 64bits kernel it is:
#define DIOSDUMPDEV32             _IOW('p',0xa0,unsigned int) 
And in user space it is (32 bits):
#define DIOSDUMPDEV32             _IOW('p',0xa0,unsigned long)

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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	Ryan Bradetich <rbradetich@uswest.net>
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On Tuesday 11 June 2002 03:08 am, Thibaut VARENE wrote:
> Le mardi 11 juin 2002,  07:36 , Ryan Bradetich a crit :
> > Digging into the system a bit, here is what I found:
> >
> > 	* The setiathome process that hung (PID 326) will hang any other
> > 	  process that tries to access /proc/326/*.  (This is why top,
> > 	  ps, etc all hang after the process gets stuck).
Sirs...

I SEEM to experience a similar situation on 2.4.18-linux-x86-SMP using the 
P111-S processors (with 512K L2 cache).
Quite rare; evidently some very small window for failure.
I don't have any solid leads yet (although I have theories).

Just a note that it might not be HPPA specific.

Mike



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> I SEEM to experience a similar situation on 2.4.18-linux-x86-SMP using the 
> P111-S processors (with 512K L2 cache).
> Quite rare; evidently some very small window for failure.
> I don't have any solid leads yet (although I have theories).

On hppa this is quite easy to reproduce. When Dave is compiling gcc we
can crash the box every hour or so.... :-)

It's interesting to note that even with a UP kernel on the rp2470, the
kernel doesn't seem to be very stable (though better than SMP).... I
think we are looking at multiple bugs here.....

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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> It's interesting to note that even with a UP kernel on the rp2470, the
> kernel doesn't seem to be very stable (though better than SMP).... I
> think we are looking at multiple bugs here.....

Quite likely.  The A500 seemed more stable.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: [parisc-linux] Major Supported Hardware List Upgrade Poll
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Hi all !

We are about to start a big update and refresh of our supported hardware 
list.

We would like to make it more useful and clear than it is now.

To achieve that, we will need the contribution of each of you fellows :o)

The idea is quite simple:

We would like all of you to check the list:
http://pateam.esiee.fr/list.html
for the box(es) you might own and on which you tried to install palinux.

Then check what's written (supported, not supported, serial, and so on).
If you see an inconsistency with what you experienced, then mail us at:
mailto:puffin@esiee.fr
with elements that would help us for an update.
Please also mention if you allow us to publish your mail/mail address.

What would be very useful is a complete report of what you tried, and 
what succeeded and what failed.
i.e. 32/64bit, SMP/UP, graphic/serial console, kernel version, etc...

The typical useful piece you can attach to your mail would be the output 
of the following commands:

$ dmesg
$ uname -a
$ cat /proc/cpuinfo

!!PLEASE!! do not answer at my personal mailbox or on the m-l, to avoid 
polluting both ;o)
Take care of using the dedicated 'puffin@esiee.fr' instead.

Anyway, thanks a lot for your help, we expect to be able to provide a 
far more complete and useful version of our supported hardware list 
thanks to your feedback.


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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On Tue, Jun 11, 2002 at 06:19:28PM +0200, Gianpiero Fasulo wrote:
> Then i have do the make config and i have modify the .config file
> (CONFIG_PARISC64=y).
> The make dep is ok but when i give the make vmlinux command i have this

if you modify .config by hand, you must `make oldconfig' afterwards.

-- 
Revolutions do not require corporate support.



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On Tue, Jun 11, 2002 at 06:34:41PM +0200, Gianpiero Fasulo wrote:
> HI,
> i don't want to modify .config by hand, but when i give make oldconfig, the
> CONFIG_PARISC in not CONFIG_PARISC64.
> OK?

you always get CONFIG_PARISC.  you get CONFIG_PARISC64 as well if you
select it.

stop trimming the list from your replies -- this isn't a free help
service for you alone.

-- 
Revolutions do not require corporate support.



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On Tuesday 11 June 2002 09:58 am, Randolph Chung wrote:
>
> think we are looking at multiple bugs here.....
>
Very likely...
You might check the HPPA version of:

arch/i386/kernel/irq.c::__global_save_flags.

using objdump -d on the kernel.o produced by my compiler
(a different version of GCC than used for pa-risc) I find that
for the "c" code sequence:
....
int cpu = smp_processor_id() ;

__save_flags(flags) ;
....
generates assembly code which modifies the flags during the
initialization of "cpu" before the flags are actually saved.
....
in the pa-risc branch, try the equivalent of:
....
int cpu ;
....
__save_flags(flags) ;
....
cpu = smp_processor_id() ;
....

Mike



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Christoph Plattner wrote:
> http://cvsweb.netbsd.org/bsdweb.cgi/syssrc/sys/arch/newsmips/apbus/

This looks like it's the right driver for the HP-PB SE SCSI.
I noticed that SDTR isn't supported.
But it's a starting point.

grant



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Bruno Vidal wrote:
> 	Haaaaa, I've succeded at the end. Now ioctls are working fine.

Excellent!

> Sorry, I beg your pardon, the probleme was coming from the manner I
> declare my ioctls cmds. With 64bits kernel it is:
> #define DIOSDUMPDEV32             _IOW('p',0xa0,unsigned int) 
> And in user space it is (32 bits):
> #define DIOSDUMPDEV32             _IOW('p',0xa0,unsigned long)

shouldn't both kernel and user space use the same definition?
(ie unsigned int)
If they don't, I expect the ioctl wrapper to do some work.

grant



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Sorry for the disturb!
If You see any my e-mail to the list, please don't reply me!


----- Original Message -----
From: "Matthew Wilcox" <willy@debian.org>
To: "Gianpiero Fasulo" <gfasulo@kingcom.it>
Cc: "Matthew Wilcox" <willy@debian.org>; <parisc-linux@parisc-linux.org>
Sent: Tuesday, June 11, 2002 7:55 PM
Subject: Re: Kernel compiling problem


> On Tue, Jun 11, 2002 at 06:34:41PM +0200, Gianpiero Fasulo wrote:
> > HI,
> > i don't want to modify .config by hand, but when i give make oldconfig,
the
> > CONFIG_PARISC in not CONFIG_PARISC64.
> > OK?
>
> you always get CONFIG_PARISC.  you get CONFIG_PARISC64 as well if you
> select it.
>
> stop trimming the list from your replies -- this isn't a free help
> service for you alone.
>
> --
> Revolutions do not require corporate support.
>




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Subject: Re: [parisc-linux] 2.4.18-pa35 SMP process hangs on a J200
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Hi all,

We hung again our A500  :/

Still the same symptoms.

It seems that it is the seti process that hung it:
We can access info in /proc/1/, but nothing about the seti process:
see the following:
[varenet@mkhppa3 ~]$ cat seti1/pid.sah
5972
[varenet@mkhppa3 ~]$ ls /proc/5972/

And the command would not return.

We issued a 'w' that got hung too, but we can still access its proc info:
[varenet@mkhppa3 /proc]$ cat 6576/cmdline
w
[varenet@mkhppa3 /proc]$ cat 6576/mem
cat: 6576/mem: No such process
[varenet@mkhppa3 /proc]$ cat 6576/status
Name:   w
State:  D (disk sleep)
Tgid:   6576
Pid:    6576
PPid:   1
TracerPid:      0
Uid:    1001    1001    1001    1001
Gid:    100     100     100     100
FDSize: 256
Groups: 100
VmSize:     1912 kB
VmLck:         0 kB
VmRSS:       812 kB
VmData:       76 kB
VmStk:         0 kB
VmExe:        12 kB
VmLib:      1420 kB
SigPnd: 0000000000000001
SigBlk: 0000000000000000
SigIgn: 8000000000000000
SigCgt: 0000000000000000
CapInh: 0000000000000000
CapPrm: 0000000000000000
CapEff: 0000000000000000

Of course, a 'kill -9 6576' would do nothing.

We can also access the info about the distributed.net client, which 
seems to be hang too:
[varenet@mkhppa3 /proc]$ cat 224/status
Name:   dnetc
State:  D (disk sleep)
Tgid:   224
Pid:    224
PPid:   1
TracerPid:      0
Uid:    1001    1001    1001    1001
Gid:    100     100     100     100
FDSize: 64
Groups: 100
VmSize:     2300 kB
VmLck:         0 kB
VmRSS:      1136 kB
VmData:       84 kB
VmStk:         0 kB
VmExe:       348 kB
VmLib:      1368 kB
SigPnd: 0000000000000000
SigBlk: 0000000000000000
SigIgn: 8000000000001000
SigCgt: 0000000003004027
CapInh: 0000000000000000
CapPrm: 0000000000000000
CapEff: 0000000000000000

Now we are about to test with only 2 dnetc, no seti, to see whether it 
crashes or not.

We'll keep the m-l informed.

Greetings,


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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On Tuesday 11 June 2002 01:39 pm, Michael S. Zick wrote:
> On Tuesday 11 June 2002 09:58 am, Randolph Chung wrote:
> > think we are looking at multiple bugs here.....
>
> Very likely...
Sirs...
I now have a definate lead for the x86-SMP case, which might 
aid the troubleshooters in the pa-risc branch (diff's attached).

Evidently, some code path is causing these portions of IRQ 
service to be entered with the IRQ state not as designed.

These patches preserve callers interrupt state, eliminating
the erratic behavior, which is only an artifact of the true cause.

True cause still unknown.

Additional note: On the HP models with the worst of the problems;
is the physical_cpu_id and the logical_cpu_id a 1:1 mapping as
it is on x86 systems?

Mike

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From - Thu Nov 08 21:23:06 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.18-pa35 SMP process hangs on a J200
Date: Wed, 12 Jun 2002 15:11:30 +0100
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To: "Michael S. Zick" <mszick@goquest.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:15082

On Tue, Jun 11, 2002 at 01:39:38PM -0500, Michael S. Zick wrote:
> using objdump -d on the kernel.o produced by my compiler
> (a different version of GCC than used for pa-risc) I find that
> for the "c" code sequence:
> ....
> int cpu = smp_processor_id() ;
> 
> __save_flags(flags) ;
> ....
> generates assembly code which modifies the flags during the
> initialization of "cpu" before the flags are actually saved.

are you sure?  every architecture (apart from sparc32) uses:

#define smp_processor_id() (current->processor)

admittedly on i386 (which is where you seem to be investigating), this
expands to:

get_current()->processor

which expands to

andl %%esp,%0

where 8191UL has previously been loaded into register %0.  but i don't
see how this can affect the interrupt flags.  admittedly, i know very
little about x86, but there are many other instances of code like this
in the kernel.

-- 
Revolutions do not require corporate support.



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From: Martin =?iso-8859-15?q?K=FCchler?= <martin@k0k.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] tst unaligned access
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Hello,

After a successful uptime of about a month, I could not log in to my 712/60 
any longer. I found the following error message at the console: 

tst(11624): unaligned access to 0xbff003d4 at ip=0x000105b3
Not-handled unaligned insn 0x2f401016
unaligned handler failed, ret = -1

I am not even sure if this is the cause of the login problem, but I found a 
description that was samewhat similar (but on a different machine):

http://lists.debian.org/debian-hppa/2001/debian-hppa-200109/msg00053.html

My problem was, everything was working fine (network, iptables with 
masquerading, server processes ...), but when I tried to log in he just 
wouldn't give me the shell (after the username/password I got the login 
message and nothing else). 

Even shutdown with the soft power switch didn't work, I had to pull the plug 
:-(
But now, after reboot everything seems to be fine ... 

What could this have been ? And what is this tst process ??

I have a 2.4.18-pa22 kernel,  iptables v1.2.6a.

Thanks,

Martin



From - Thu Nov 08 21:23:06 2018
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From: Randolph Chung <randolph@tausq.org>
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> tst(11624): unaligned access to 0xbff003d4 at ip=0x000105b3
> Not-handled unaligned insn 0x2f401016
> unaligned handler failed, ret = -1

that's fldd 0(sr0,r26),fr22 (thanks Richard!)... the unaligned handler
doesn't do floating point insns at the moment.

> What could this have been ? And what is this tst process ??
> 
> I have a 2.4.18-pa22 kernel,  iptables v1.2.6a.

try a newer kernel? there were some hanging process problems that were
fixed recently, though i think there are some other ones still there...

i have no idea what tst is though....

randolph
-- 
   @..@                                         http://www.TauSq.org/
  (----)
 ( >__< )
 ^^ ~~ ^^



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Sorry, that I am not so "deep" in the HP device knowledge, can you give
me sime hints !

HP-BP is this a HP bus system ?
Is this used in the E55 (or similar) ?
Is the "SE" SCSI that one in the E55 (what stands "SE" for) ?
What is SDTR ?

Sorry, but I am interested in that stuff, and I know, I can help after 
initial steps. Some weeks ago, I rewrote an ethernet driver of an
not-well known chip on an VAX termianl for VAX Linux. So after some
hacking days (or better nights), there will be real progress.

So I am interested in helping here. 

Sorry for this question again:
What is the status of the MUX. As far I can remember, you started to
write on this driver. Is this correct ?

Christoph



Grant Grundler wrote:
> 
> Christoph Plattner wrote:
> > http://cvsweb.netbsd.org/bsdweb.cgi/syssrc/sys/arch/newsmips/apbus/
> 
> This looks like it's the right driver for the HP-PB SE SCSI.
> I noticed that SDTR isn't supported.
> But it's a starting point.
> 
> grant

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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On Wed, 12 Jun 2002, Christoph Plattner wrote:

> Sorry, that I am not so "deep" in the HP device knowledge, can you give
> me sime hints !
>
> HP-BP is this a HP bus system ?

Yes, it's the HP Precision Bus (aka NIO). AFAIK it's mainly used in the
(very) old servers, like F10. I don't know what the current status of
support
is, but it used to be unsupported (no docu ?).

(hint: www.parisc-linux.org ->glossary, mailing list archive)

> Is this used in the E55 (or similar) ?

Yes. Although (regarding to www.openpa.net) something like a modified
version.

(hint: www.openpa.net, www.google.com, www.parisc-linux.org ->hardware
database)

> Is the "SE" SCSI that one in the E55 (what stands "SE" for) ?

SE stands for SingleEnded and reffers to how the SCSI device is connected
(signalling etc.). It's the "normal" SCSI (unlike LVD,
LowVoltageDifferential), used in SCSI-I and SCSI-II (narrow)

> What is SDTR ?

It's the signal send on the scsi bus to negotiate syncronous data
transfer (or asynchronous sent with a REQ/ACK) if they support it.

> Sorry, but I am interested in that stuff, and I know, I can help after
> initial steps. Some weeks ago, I rewrote an ethernet driver of an
> not-well known chip on an VAX termianl for VAX Linux. So after some
> hacking days (or better nights), there will be real progress.
>
> So I am interested in helping here.

nice :)

> Sorry for this question again:
> What is the status of the MUX. As far I can remember, you started to
> write on this driver. Is this correct ?

Perhaps s.o. can answer this question. AFAIK somebody is indeed writing
on it and has succeded to use the console port on the MUX.

geretings max




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On Wednesday 12 June 2002 22:22, Martin Kchler wrote:
> After a successful uptime of about a month, I could not log in to my 712/60
> any longer. I found the following error message at the console:

Hi Martin,

FYI, I had similiar problems on a 715/50 in the past. It hung sometimes after one week
of uptime and it seemed to me as if the SCSI driver was unable to access the disc
and thus didn't gave me a login prompt or anything else.
After upgrading the kernel to the most recent one (>= 2.4.18-pa35) which has some
IRQ fixes in it , and which seems to cure the SCSI driver problems, the box now seems 
to work stable.
In case you update your kernel, could you please let us know if the box works stable for 
you too ?

Greetings,
Helge




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Christoph Plattner wrote:
> HP-BP is this a HP bus system ?
> Is this used in the E55 (or similar) ?

yes. yes.

> Is the "SE" SCSI that one in the E55 (what stands "SE" for) ?
 
yes. "Single Ended".

> What is SDTR ?

Synchronous Data Transfer Rate.
See the SCSI spec for more detail.

grant



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Christoph Plattner wrote:
> Sorry for this question again:
> What is the status of the MUX. As far I can remember, you started to
> write on this driver. Is this correct ?

no. I think Ryan Bradetich was working on something for this
for K-class. not sure this is the same thing as E55 though.

grant



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Hi Dave,

To compile toolchaine with gcc-3.2, I also try cvs glibc.

I also apply your "patch glibc-2.2.5 for gcc-3.2"

After applying similar patch to "sysdeps/hppa/dl-machine.h", I always got ld
segmetation fault:

/Develop/parisc-linux/build/glibc/elf/ld.so.1 --library-path
/Develop/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Develop/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/Develop/parisc-linux/build/glibc/nss:/Develop/parisc-linux/build/glibc/nis:/Develop/parisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/build/glibc/linuxthreads
/Develop/parisc-linux/build/glibc/sunrpc/rpcgen -Y ../scripts -c
rpcsvc/bootparam_prot.x -o
/Develop/parisc-linux/build/glibc/sunrpc/xbootparam_prot.T
make[2]: *** [/Develop/parisc-linux/build/glibc/sunrpc/xbootparam_prot.stmp]
Segmentation fault
make[2]: Leaving directory `/Develop/parisc-linux/src/glibc/sunrpc'
make[1]: *** [sunrpc/others] Error 2
make[1]: Leaving directory `/Develop/parisc-linux/src/glibc'
make: *** [all] Error 2

### Thu Jun 13 09:12:24 2002 ###


Don't you have additional advice?

Thanks in advance,
    Joel

PS: I got the same result whatever the env I choose:

unset LD_LIBRARY_PATH
unset LD_RUN_PATH

or

export LD_LIBRARY_PATH=$DEST/lib
export LD_RUN_PATH=$DEST/bin


-------------------------------------------------
This mail sent through Tiscali Webmail (http://webmail.tiscali.be)



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> Don't you have additional advice?

Did you start with the debian version of glibc?  I have built 2.2.5-6
with 3.2 and am using it.  It's possible you need to update binutils.
Some linux versions also seem to have a tendency to cause random
segfaults.

Since I don't think I can duplicate your environment, you will have
to run ld under gdb to find out where it's segfaulting and get some
sense as to what's causing the problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Thanks, for the answers.

I never thought, the SE stands here for the single ended, I know the 
difference between SE and differential.

BTW: It's me, who wrote the MUX console support, and this is already
checked in into the Linux tree (for half an year now). 
But I am interested in having a full device support....

Christoph P.



"M. Grabert" wrote:
> 
> On Wed, 12 Jun 2002, Christoph Plattner wrote:
> 
> > Sorry, that I am not so "deep" in the HP device knowledge, can you give
> > me sime hints !
> >
> > HP-BP is this a HP bus system ?
> 
> Yes, it's the HP Precision Bus (aka NIO). AFAIK it's mainly used in the
> (very) old servers, like F10. I don't know what the current status of
> support
> is, but it used to be unsupported (no docu ?).
> 
> (hint: www.parisc-linux.org ->glossary, mailing list archive)
> 
> > Is this used in the E55 (or similar) ?
> 
> Yes. Although (regarding to www.openpa.net) something like a modified
> version.
> 
> (hint: www.openpa.net, www.google.com, www.parisc-linux.org ->hardware
> database)
> 
> > Is the "SE" SCSI that one in the E55 (what stands "SE" for) ?
> 
> SE stands for SingleEnded and reffers to how the SCSI device is connected
> (signalling etc.). It's the "normal" SCSI (unlike LVD,
> LowVoltageDifferential), used in SCSI-I and SCSI-II (narrow)
> 
> > What is SDTR ?
> 
> It's the signal send on the scsi bus to negotiate syncronous data
> transfer (or asynchronous sent with a REQ/ACK) if they support it.
> 
> > Sorry, but I am interested in that stuff, and I know, I can help after
> > initial steps. Some weeks ago, I rewrote an ethernet driver of an
> > not-well known chip on an VAX termianl for VAX Linux. So after some
> > hacking days (or better nights), there will be real progress.
> >
> > So I am interested in helping here.
> 
> nice :)
> 
> > Sorry for this question again:
> > What is the status of the MUX. As far I can remember, you started to
> > write on this driver. Is this correct ?
> 
> Perhaps s.o. can answer this question. AFAIK somebody is indeed writing
> on it and has succeded to use the console port on the MUX.
> 
> geretings max

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Hello Grant,

MUX:
----
So, what is then the status of the docu then. You (I think it was you),
said something about a non-disclosure agreement. Is this opportunity
still active ?

SCSI:
-----
Are there plans to start developing the SCSI driver on base of this
NetBSD driver ?

Common:
-------
Is there a need to handle the bus system in a special way, or are the
devices full accessable, interrupts assigned, etc..., or is there
special
work to do ?


Christoph



Grant Grundler wrote:
> 
> Christoph Plattner wrote:
> > Sorry for this question again:
> > What is the status of the MUX. As far I can remember, you started to
> > write on this driver. Is this correct ?
> 
> no. I think Ryan Bradetich was working on something for this
> for K-class. not sure this is the same thing as E55 though.
> 
> grant
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Christoph Plattner wrote:
> Hello Grant,
> 
> MUX:
> ----
> So, what is then the status of the docu then. You (I think it was you),
> said something about a non-disclosure agreement. Is this opportunity
> still active ?

Yes - I've already asked the person who can do this and they agreed to.
The issue was finding time to do it.  Please be patient with us since
"business issues" are keeping us busy right now. It might take
another month but hopefully not that long. We'll contact you off list
when it's ready.

> SCSI:
> -----
> Are there plans to start developing the SCSI driver on base of this
> NetBSD driver ?

Yes - I was pretty sure you or rbrad was going to port that. ;^)
In any case, someone who cares will make this port happen.

> Common:
> -------
> Is there a need to handle the bus system in a special way, or are the
> devices full accessable, interrupts assigned, etc..., or is there
> special
> work to do ?

The MMIO access makes the system bus transperent.
Interrupts will require some small bit of work identical to
what's be done for Zalon SCSI support.

grant



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Hello,

Grant Grundler wrote:
> 
> Christoph Plattner wrote:
> > Hello Grant,
> >
> > MUX:
> > ----
> > So, what is then the status of the docu then. You (I think it was you),
> > said something about a non-disclosure agreement. Is this opportunity
> > still active ?
> 
> Yes - I've already asked the person who can do this and they agreed to.
> The issue was finding time to do it.  Please be patient with us since
> "business issues" are keeping us busy right now. It might take
> another month but hopefully not that long. We'll contact you off list
> when it's ready.

Oh, no problem, I will patient here. From an older email, I thougt, 
this process was cancelled, I thought you wrote, that you will to 
that (the driver). So I was interested in the status. So now I am
up-to-date, ok.

> 
> > SCSI:
> > -----
> > Are there plans to start developing the SCSI driver on base of this
> > NetBSD driver ?
> 
> Yes - I was pretty sure you or rbrad was going to port that. ;^)
> In any case, someone who cares will make this port happen.

Ok, I will look, if I can help here. I have some experience in ethernet
work (and a little bit serial), SCSI and block devices are new for me,
but I am interested in (month by month, new regions of the kernel can
be discovered ..., I like it ....)

> 
> > Common:
> > -------
> > Is there a need to handle the bus system in a special way, or are the
> > devices full accessable, interrupts assigned, etc..., or is there
> > special
> > work to do ?
> 
> The MMIO access makes the system bus transperent.
> Interrupts will require some small bit of work identical to
> what's be done for Zalon SCSI support.

Ok, that helps in starting driver development.

> 
> grant


Bye
Christoph P.


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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hi,

i have a c200 and want to install from a palinux-2.4.18-pa26-netinst image.
after some problems booting from the internal cdrom, i have connected an
external box with a traxdata writer. from this device the boot is working
until the message "freeing unused kernel memory". after this i got some
ext2-fs errors concerning the ramdisk. the last message is a kernal panic
"no init found. try passing init= option to kernel".

is there anybody out who can help me to realize where the problem might be?
the same is if i use a 2.4.18-pa35 image.
i have already searched the list archive but i wasn't able to find a
solution.

ok, i'm a newbie but i have the dream of using linux on my little hp box!

regards,

kim




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Subject: Re: [parisc-linux] 2.4.18-pa35 SMP process hangs on a J200
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Michael S. Zick wrote:
> Sirs...
> I now have a definate lead for the x86-SMP case, which might 
> aid the troubleshooters in the pa-risc branch (diff's attached).

ok - thanks. I'll take a look.

But I can tell you now that very little of the code between
x86 and parisc is shared in this area. I doubt it's as helpful
as you might think.

> Additional note: On the HP models with the worst of the problems;
> is the physical_cpu_id and the logical_cpu_id a 1:1 mapping as
> it is on x86 systems?

Yes. parisc didn't have a concept of physical CPU ID until
PAT PDC (eg A500, N-class, etc). When we want to support
CPU addition and removal, we can add physical/logical
mappings and it will no longer be 1:1.

grant



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On Thu, Jun 13, 2002 at 03:52:46PM -0600, Grant Grundler wrote:
> > Additional note: On the HP models with the worst of the problems;
> > is the physical_cpu_id and the logical_cpu_id a 1:1 mapping as
> > it is on x86 systems?
> 
> Yes. parisc didn't have a concept of physical CPU ID until
> PAT PDC (eg A500, N-class, etc). When we want to support
> CPU addition and removal, we can add physical/logical
> mappings and it will no longer be 1:1.

Actually this came up in an unrelated question today.  I found that
where other architectures use a physical ID, we use an address.  So we
really have no use for logical/physical mappings.  When the CPU hotplug
code is introduced, it will actually remove the logical numbering and
loops over all cpus will be done with loops over all physical cpus and
a check to see whether that cpu is online.

-- 
Revolutions do not require corporate support.



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Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> > Don't you have additional advice?
> 
> Did you start with the debian version of glibc?  I have built 2.2.5-6
> with 3.2 and am using it.  It's possible you need to update binutils.
> Some linux versions also seem to have a tendency to cause random
> segfaults.
> 
> Since I don't think I can duplicate your environment, you will have
> to run ld under gdb to find out where it's segfaulting and get some
> sense as to what's causing the problem.

Dave,

Thanks a lot.
As my first object (right now) is to help to understand why linux crash with
network connection  when compile with gcc-3.[12], I will also work with glibc-2.2.5.

Joel


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Quoting klaue@otto.t4y-it.com:

> hi,
> 
> i have a c200 and want to install from a palinux-2.4.18-pa26-netinst
> image.
> after some problems booting from the internal cdrom, i have connected
> an
> external box with a traxdata writer. from this device the boot is
> working
> until the message "freeing unused kernel memory". after this i got some
> ext2-fs errors concerning the ramdisk. the last message is a kernal
> panic
> "no init found. try passing init= option to kernel".
> 

Never met this problem with a cd but it sounds like the burned cd is wrong.
Do you check md5sum of your downloaded image
(http://pateam.esiee.fr/cd-images/testing/)?
Then of your burned cd?

> is there anybody out who can help me to realize where the problem might
> be?
> the same is if i use a 2.4.18-pa35 image.
> i have already searched the list archive but i wasn't able to find a
> solution.
> 
> ok, i'm a newbie but i have the dream of using linux on my little hp
> box!
> 
> regards,
> 
> kim
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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Hi
 
I'm trying very hard to identify the tty on my HP-9000/E45 on which the
system console is attached
I've noticed that when running HP/UX on this box, it auto-detects the
system console, which is btw connected through a MUX.
Is there anyway to detect in a similar manner? Or can some debugging be
turned on to identify it?
I've tried the console=ttyS0 but just doesn't help anything. also tried
with ttys0 tty console
 
Any suggestions would be very happily accepted
 
Regards,
 
William Carlsson
__________________________________________________________________
WoC HOME
ICQ#: 1770152

Current ICQ status:  

*   <http://wwp.icq.com/1770152> More ways to contact me 
__________________________________________________________________
 

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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

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lang=3DEN-GB
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n></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Hi<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>I&#8217;m trying very =
hard to
identify the tty on my HP-9000/E45 on which the system console is =
attached<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>I&#8217;ve noticed =
that when
running HP/UX on this box, it auto-detects the system console, which is =
btw
connected through a MUX.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Is there anyway to =
detect in a
similar manner? Or can some debugging be turned on to identify =
it?<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>I&#8217;ve tried the
console=3DttyS0 but just doesn&#8217;t help anything&#8230; also tried =
with ttys0
tty console<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></span=
></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Any suggestions would =
be very
happily accepted<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></span=
></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>Regards,<o:p></o:p></sp=
an></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></span=
></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>William =
Carlsson<o:p></o:p></span></font></p>

<p class=3DMsoNormal><b><font size=3D1 color=3D"#448593" =
face=3DGeneva><span
style=3D'font-size:7.5pt;font-family:Geneva;color:#448593;font-weight:bol=
d;
mso-no-proof:yes'>_______________________________________________________=
___________</span></font></b><font
size=3D1 color=3D"#448593" face=3DGeneva><span =
style=3D'font-size:7.5pt;font-family:
Geneva;color:#448593;mso-no-proof:yes'><br>
</span></font><b><font size=3D2 color=3D"#448593" face=3DGeneva><span
style=3D'font-size:10.0pt;font-family:Geneva;color:#448593;font-weight:bo=
ld;
mso-no-proof:yes'>WoC HOME</span></font></b><font size=3D1 =
color=3D"#448593"
face=3DGeneva><span =
style=3D'font-size:7.5pt;font-family:Geneva;color:#448593;
mso-no-proof:yes'><br>
<b><span =
style=3D'font-weight:bold'>ICQ#:&nbsp;</span></b></span></font><b><font
size=3D1 color=3D"#4051c8" face=3DGeneva><span =
style=3D'font-size:7.5pt;font-family:
Geneva;color:#4051C8;font-weight:bold;mso-no-proof:yes'>1770152</span></f=
ont></b><font
size=3D1 color=3D"#448593" face=3DGeneva><span =
style=3D'font-size:7.5pt;font-family:
Geneva;color:#448593;mso-no-proof:yes'><o:p></o:p></span></font></p>

<table class=3DMsoNormalTable border=3D0 cellpadding=3D0 =
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face=3DVerdana><span
  =
style=3D'font-size:7.5pt;font-family:Verdana;color:#448593;font-weight:bo=
ld;
  mso-no-proof:yes'>Current ICQ status:</span></font></b><font size=3D1
  color=3D"#448593" face=3DVerdana><span =
style=3D'font-size:7.5pt;font-family:Verdana;
  color:#448593;mso-no-proof:yes'>&nbsp;&nbsp;</span></font><font =
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  style=3D'color:navy;mso-no-proof:yes'><o:p></o:p></span></font></p>
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  <p class=3DMsoNormal><font size=3D3 color=3Dnavy face=3D"Times New =
Roman"><span
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height=3D16
  id=3D"_x0000_i1027" =
src=3D"cid:image001.gif@01C213E9.CFAF38F0"><o:p></o:p></span></font></p>
  </td>
 </tr>
</table>

<p class=3DMsoNormal><b><font size=3D3 color=3D"#448593" =
face=3DWingdings><span
style=3D'font-size:12.0pt;font-family:Wingdings;color:#448593;font-weight=
:bold;
mso-no-proof:yes'>+</span></font></b><font size=3D1 color=3D"#448593" =
face=3DGeneva><span
lang=3DEN-GB =
style=3D'font-size:7.5pt;font-family:Geneva;color:#448593;mso-ansi-langua=
ge:
EN-GB;mso-no-proof:yes'> &nbsp;</span></font><font size=3D1 =
color=3D"#448593"
face=3DGeneva><span =
style=3D'font-size:7.5pt;font-family:Geneva;color:#448593;
mso-no-proof:yes'><a href=3D"http://wwp.icq.com/1770152"><b><span =
lang=3DEN-GB
style=3D'mso-ansi-language:EN-GB;font-weight:bold'>More ways to contact =
me </span></b></a></span></font><font
size=3D1 color=3D"#448593" face=3DGeneva><span lang=3DEN-GB =
style=3D'font-size:7.5pt;
font-family:Geneva;color:#448593;mso-ansi-language:EN-GB;mso-no-proof:yes=
'><br>
<b><span =
style=3D'font-weight:bold'>______________________________________________=
____________________</span></b></span></font><span
lang=3DEN-GB style=3D'mso-ansi-language:EN-GB'><o:p></o:p></span></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p>&nbsp;</o:p></span=
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From - Thu Nov 08 21:23:08 2018
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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP-9000/E45
Date: Sat, 15 Jun 2002 01:45:28 +0200
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To: "William @ HOME" <william@zero.myftpsite.net>
Original-X-From: owner-parisc-linux@dsl2.external.hp.com  Fri Jun 14 17:45:13 2002
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Xref: news.gmane.org gmane.linux.ports.parisc:15102

Hello,

this machine is not supported under linux yet.

But I wrote a driver half'n year ago, using the PDC console (ROM)
in Linux. You have to activate the PDC console by kernel compilation
(character device driver, non-standard drivers), and you have to 
create a device /dev/ttyB0 (see HELP button at configuration).

The kernel line parameter, add `console=ttyB0', then the box can
boot as "diskless server", as the MUX (except the ROM PDC console),
the SCSI and the parallel port is not working.

But I will start on a E55 to write drivers (I will start, but I
cannot speak about results...).

BTW: the console port is on port 0 on my MUX ! If the E45 really
can do an autodetection here in the boot monitor (PDC), then this
also works under Linux, but I cannot imagine....

Christoph P.

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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From: Masliy Alex <masliy@kfti.knc.ru>
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Subject: [parisc-linux] HP PA 715/50 installation trouble
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Xref: news.gmane.org gmane.linux.ports.parisc:15103

I have some troubles in installation of Linux on HP PA 715/50

I have the following hardvare - HP PA 715/50 WS, 64Mb RAM, 1Gb SCSI HDD
QUANTUM LPS1080, DDS Tape Drive HP6400 2000, Floppy Drive Teac and CDROM
Nec CDR84JD-1

I have downloaded the last stable release - Debian port on HP PA 0.9.3 -
469Mb iso image

At first, I tried to install from CDROM. In the proccess of booting the
following messages were printed:
---------------
Trying to scsi.4.0
Failed to initialize scsi.4.0
ENTRY_INIT status = -13
---------------

Then I decided to install from floppies. However, some problems arised:
According to readme, I try to write on the Linux PC rescue disk for HP PA.
The command "dd if=rescue.bin of=/dev/fd0 bs=1024" gave the following out:
--------------
dd: writing `/dev/fd0': No space left on device
1441+0 input records
1440+0 output records
-------------

The command "cmp /dev/fd0 rescue.bin" gave the following out:
---------------
cmp: EOF on /dev/fd0
---------------

I couldn't mount this disk on Linux PC (unrecognised filesystem)
When I try to boot from this disk on HP PA,  I get the following:
--------------------
Trying to scsi.0.0
Failed to initialize scsi.0.0
ENTRY_INIT status = -4
--------------------

Could you advise me what can I do to install Linux on my HP PA?

--
Sincerilly,  
Masliy Alex			mailto:masliy@kfti.knc.ru




From - Thu Nov 08 21:23:08 2018
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On Sat, Jun 15, 2002 at 11:43:36AM +0400, Masliy Alex wrote:
> I have some troubles in installation of Linux on HP PA 715/50
> 
> I have the following hardvare - HP PA 715/50 WS, 64Mb RAM, 1Gb SCSI HDD
> QUANTUM LPS1080, DDS Tape Drive HP6400 2000, Floppy Drive Teac and CDROM
> Nec CDR84JD-1
> 
> I have downloaded the last stable release - Debian port on HP PA 0.9.3 -
> 469Mb iso image
> 
> At first, I tried to install from CDROM. In the proccess of booting the
> following messages were printed:
> ---------------
> Trying to scsi.4.0
> Failed to initialize scsi.4.0
> ENTRY_INIT status = -13

Hmm. Was this drive working with that box under HP-UX?

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
USER, n.: The word computer professionals use when they mean "idiot."
                              --Dave Barry, "Claw Your Way to the Top




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On Sat, Jun 15, 2002 at 11:43:36AM +0400, Masliy Alex wrote:
> Then I decided to install from floppies. However, some problems arised:

Floppies are not supported on parisc at present.  Your options are to
install from cdrom, or boot and install from the network.  There is a
HOWTO docuemnt linked from <http://pateam.esiee.fr/>

Richard




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On Sat, 15 Jun 2002 09:52:09 +0200
Ralf Hildebrandt <Ralf.Hildebrandt@charite.de> wrote:

>> At first, I tried to install from CDROM. In the proccess of booting the
>> following messages were printed:
>> ---------------
>> Trying to scsi.4.0
>> Failed to initialize scsi.4.0
>> ENTRY_INIT status = -13
RH> Hmm. Was this drive working with that box under HP-UX?
    Yes, of course. I was mounted the Debian Install Disk under HP-UX.
    But it is old device (August 1993). 


--
Sincerilly,  
Masliy Alex			mailto:masliy@kfti.knc.ru




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Subject: [parisc-linux] Unaligned access failures with apt-get on SMP K460.
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Hello parisc-linux hackers,

I (with a lot of help from Richard) am  looking into a problem with
apt-get .... on a SMP kernel for the K460. 

The problem is that when I run apt-get <command> I get the following
error message:
	apt-get(<PID>): unaligned access to 0x403ce094 at ip=0x4005e47f

This kernel has the DEBUG_UNALIGNED defined in
arch/parisc/kernel/unaligned.c to provide additional debug information
for unaligned accesses.





Here is the trace from the apt-get install sudo:

rebel:~# gdb /usr/bin/apt-get
GNU gdb 2002-04-01-cvs
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "hppa-linux"...(no debugging symbols
found)...
(gdb) break main
Breakpoint 1 at 0x24554
(gdb) run install sudo
Starting program: /usr/bin/apt-get install sudo
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...
Breakpoint 1, 0x00024554 in main ()
(gdb) continue
Continuing.
apt-get(165): unaligned access to 0x403ce094 at ip=0x4005e47f

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000000000000000000000000 Not tainted
r00-03  00000000 00044a20 40098df3 403ce08c
r04-07  00000038 40111868 faf00c18 00049da4
r08-11  00049da0 faf00f18 faf01368 faf00e4c
r12-15  000129e7 faf00bf0 faf00a88 faf00bcc
r16-19  faf006c8 0000000a faf005b8 40111868
r20-23  000022c8 00000166 00000000 403ce044
r24-27  faf01368 00000038 000022c8 00040220
r28-31  0004a900 400c65a7 faf01500 000282a3
sr0-3   00000097 0000008f 00000000 00000097
sr4-7   00000097 00000097 00000097 00000097

IASQ: 00000097 00000097 IAOQ: 4005e47f 4005e483
 IIR: 0c751290    ISR: 00000097  IOR: 403ce094
 CPU:        2   CR30: ee294000 CR31: 11111111
 ORIG_R28: 00000001
unaligned.c:183:emulate_store <7>store r21 (0x00000166) to
00000097:403ce094 for 4 bytes
unaligned.c:365:handle_unaligned <7>ret = 0
apt-get (pid 165): Illegal instruction (code 8)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000000000000000000000000 Not tainted
r00-03  00000000 ee58c000 40098df3 403ce08c
r04-07  00000038 40111868 faf00c18 00049da4
r08-11  10356810 10356810 faf01368 faf00e4c
r12-15  000129e7 faf00bf0 faf00a88 faf00bcc
r16-19  ee294380 0000000a faf005b8 40111868
r20-23  000022c8 00000166 00000000 403ce044
r24-27  ee81c03c eeb3db00 000022c8 00040220
r28-31  0004a900 400c65a7 faf01500 000282a3
sr0-3   00000097 0000008f 00000000 00000097
sr4-7   00000097 00000097 00000097 00000097

IASQ: 00000097 00000097 IAOQ: 4005e483 4005e487
 IIR: 48340048    ISR: 00000000  IOR: ee58c024
 CPU:        2   CR30: ee294000 CR31: 11111111
 ORIG_R28: 00000001

Program received signal SIGILL, Illegal instruction.
0x4005e480 in DynamicMMap::Allocate(unsigned long) ()
   from /usr/lib/libapt-pkg-libc6.2-3.so.3.2

(gdb)


Here is the instruction dump:

(gdb) x/10i 0x4005e470
0x4005e470 <_ZN11DynamicMMap8AllocateEm+100>:	copy r4,r25
0x4005e474 <_ZN11DynamicMMap8AllocateEm+104>:	ldo -1(r21),r21
0x4005e478 <_ZN11DynamicMMap8AllocateEm+108>:	copy r20,r26
0x4005e47c <_ZN11DynamicMMap8AllocateEm+112>:	stw r21,8(sr0,r3)
0x4005e480 <_ZN11DynamicMMap8AllocateEm+116>:	b,l 0x4005d76c
<_init+232>,r31
0x4005e484 <_ZN11DynamicMMap8AllocateEm+120>:	add,l r20,r4,r20
0x4005e488 <_ZN11DynamicMMap8AllocateEm+124>:	stw r20,4(sr0,r3)
0x4005e48c <_ZN11DynamicMMap8AllocateEm+128>:	copy ret1,ret0
0x4005e490 <_ZN11DynamicMMap8AllocateEm+132>:	ldw -54(sr0,sp),rp
0x4005e494 <_ZN11DynamicMMap8AllocateEm+136>:	ldw -3c(sr0,sp),r4
(gdb) 



The instruction causing the unaligned trap is:
0x4005e47c <_ZN11DynamicMMap8AllocateEm+112>:	stw r21,8(sr0,r3)

As you can see from r3 (403ce08c) in the register dump is aligned on a
4-byte boundry.  So the question is why is this trap being executed?

Also Richard thought the following two things looked wiered in the
register dump:

	PSW is all 0's.
	r30 is faf01500 ... isn't userspace stack usually 0xbf??????




Note: The apt-get commands work fine on a UP kernel, and I am running
against the unstable distribution. The same apt-get seems to work fine
on the J200 with an SMP kernel too.

Any thoughts or insight is appreciated :)

Thanks,

- Ryan





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> The instruction causing the unaligned trap is:
> 0x4005e47c <_ZN11DynamicMMap8AllocateEm+112>:	stw r21,8(sr0,r3)
> 
> As you can see from r3 (403ce08c) in the register dump is aligned on a
> 4-byte boundry.  So the question is why is this trap being executed?

Maybe the message is misleading.  It looks as if the insn may be trying
to write to readonly memory based of the value of r3.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: Re: [parisc-linux] Unaligned access failures with apt-get on SMP K460.
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> > The instruction causing the unaligned trap is:
> > 0x4005e47c <_ZN11DynamicMMap8AllocateEm+112>:	stw r21,8(sr0,r3)
> > 
> > As you can see from r3 (403ce08c) in the register dump is aligned on a
> > 4-byte boundry.  So the question is why is this trap being executed?
> 
> Maybe the message is misleading.  It looks as if the insn may be trying
> to write to readonly memory based of the value of r3.

Sorry, this is wrong.  Was _ZN11DynamicMMap8AllocateEm compiled with
gcc-3.2?  It looks as if C++ exceptions may be involved.  This only
has a chance of working with 3.2.  I suspect that an exception handler
is involved because r20 is not valid across calls and r20/r21 are
used in C++ exceptions.  The call looks to be a millicode call which
might be part of the problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: Re: [parisc-linux] Unaligned access failures with apt-get on SMP
	K460.
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Dave,

This is the apt-get from debian unstable ... so if I had to guess
I would assume that it is:

||/ Name           Version        Description
+++-==============-==============-============================================
ii  gcc            3.0.4-6        The GNU C compiler.

any way I can tell from the binary?

thanks,

- Ryan


On Sun, 2002-06-16 at 20:31, John David Anglin wrote:
> > > The instruction causing the unaligned trap is:
> > > 0x4005e47c <_ZN11DynamicMMap8AllocateEm+112>:	stw r21,8(sr0,r3)
> > > 
> > > As you can see from r3 (403ce08c) in the register dump is aligned on a
> > > 4-byte boundry.  So the question is why is this trap being executed?
> > 
> > Maybe the message is misleading.  It looks as if the insn may be trying
> > to write to readonly memory based of the value of r3.
> 
> Sorry, this is wrong.  Was _ZN11DynamicMMap8AllocateEm compiled with
> gcc-3.2?  It looks as if C++ exceptions may be involved.  This only
> has a chance of working with 3.2.  I suspect that an exception handler
> is involved because r20 is not valid across calls and r20/r21 are
> used in C++ exceptions.  The call looks to be a millicode call which
> might be part of the problem.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)
> 





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Subject: Re: [parisc-linux] Unaligned access failures with apt-get on SMP
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On 16 Jun 2002, Ryan Bradetich wrote:

> Hello parisc-linux hackers,
> 
> I (with a lot of help from Richard) am  looking into a problem with
> apt-get .... on a SMP kernel for the K460. 
> 
> The problem is that when I run apt-get <command> I get the following
> error message:
> 	apt-get(<PID>): unaligned access to 0x403ce094 at ip=0x4005e47f
> 
I get stuff like this on my J5000, only it locks up and/or HPMC's when it 
does it.  (Sometimes prints HPMC info to the LCD, sometimes not, but 
always locks up).

I try to keep up-to-date with the cvs kernels, and I try it on SMP every 
now and then, but I generally run this box under UP and it is very stable.  
I started having problems with this box when the latest 2.4.17-32-smp was 
released.  With the previous one, this box was stable under SMP.  (this 
was before I got the courage to build my own kernels on parisc).  Not sure 
what versions in cvs this corresponds to, but maybe some change between 
caused the problem.

Not sure if this is the same problem you are encountering, because Samba 
also tends to lock this box up, and if I leave it alone, it just crashes 
itself later...


-- 
Troubled day for virgins over 16 who are beautiful and wealthy and live
in eucalyptus trees.




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Subject: Re: [parisc-linux] Unaligned access failures with apt-get on SMP
	K460.
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Hello Jeremy,

The SMP problem is what I am trying to debug.  I am running SMP cvs head
on the J200 and the K460 and also an A500 recently thanks to the ESIEE
team.  The K460 has 4 processors which I am hoping will help to identify
the SMP problems faster, but it is also exposing new SMP problems for me
to look into :(

Hopefully we will be able to identify and fix these SMP problems, but
they do not appear to be easy and will probably take a while to fix.

Thanks for the report! and if you notice anything else odd (or
repeatable patterns) let me and/or the list know so maybe it will
provide additional insights into the problems.

Thanks,

- Ryan

On Sun, 2002-06-16 at 21:19, Jeremy Drake wrote:
> On 16 Jun 2002, Ryan Bradetich wrote:
> 
> > Hello parisc-linux hackers,
> > 
> > I (with a lot of help from Richard) am  looking into a problem with
> > apt-get .... on a SMP kernel for the K460. 
> > 
> > The problem is that when I run apt-get <command> I get the following
> > error message:
> > 	apt-get(<PID>): unaligned access to 0x403ce094 at ip=0x4005e47f
> > 
> I get stuff like this on my J5000, only it locks up and/or HPMC's when it 
> does it.  (Sometimes prints HPMC info to the LCD, sometimes not, but 
> always locks up).
> 
> I try to keep up-to-date with the cvs kernels, and I try it on SMP every 
> now and then, but I generally run this box under UP and it is very stable.  
> I started having problems with this box when the latest 2.4.17-32-smp was 
> released.  With the previous one, this box was stable under SMP.  (this 
> was before I got the courage to build my own kernels on parisc).  Not sure 
> what versions in cvs this corresponds to, but maybe some change between 
> caused the problem.
> 
> Not sure if this is the same problem you are encountering, because Samba 
> also tends to lock this box up, and if I leave it alone, it just crashes 
> itself later...
> 
> 
> -- 
> Troubled day for virgins over 16 who are beautiful and wealthy and live
> in eucalyptus trees.
> 
> 





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> any way I can tell from the binary?

Not that I am aware of.  On further thought, I think the user code is ok.

Studying you original message further, I see that the printout from
unaligned.c is fully consistent with the register dump and user code.
Thus, I have to think that the problem is actually in the kernel.

If the failure occurs all the time, I would put a break at 0x4005e47c
and then set a large ignore count.  Run the program and see how many
times the break is hit before the fault occurs.  Then, set the ignore
count to 1 less than the number of hits and rerun.  If the fault is
deterministic, you should be able to determine the exact conditions
which cause the "trap".

Oh, I remember that gdb may not print r3 correctly with info reg.
It's better to use p $r3 or printf "0x%x\n", $r3.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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On 16 Jun 2002, Ryan Bradetich wrote:

> Hello Jeremy,
> 
> The SMP problem is what I am trying to debug.  I am running SMP cvs head
> on the J200 and the K460 and also an A500 recently thanks to the ESIEE
> team.  The K460 has 4 processors which I am hoping will help to identify
> the SMP problems faster, but it is also exposing new SMP problems for me
> to look into :(
I can try things out for you on my J5k if it will help.  This box was not 
being used at my work, so they let me install linux on it and play with it 
until it is needed.  So, it is okay for me to crash it :P

> Thanks for the report! and if you notice anything else odd (or
> repeatable patterns) let me and/or the list know so maybe it will
> provide additional insights into the problems.
This time I got a new message.

WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x203c8000 to 0x203cc700:
8000 c377fe59 d5f07332 86effcb3 abe0e665 0ddff967 57c1cccb 1bc9479d 
aff52cc4
8020 37928f3b 5fea5989 6f53ab25 bfa20640 dea7564b 7f440c81 bd3819c5 
fefeac50
8040 7a70338b fdfd58a1 f4e06717 fbfab143 e9c0ce2f f7f56287 d3819c5f 
efeac50f

<tuns of hex deleted>

The next time, it just locks up, no message.

It looks horribly unpridictable, although I have found 2 programs that 
consistantly do it: samba and apt-get.  

If I could be of any help, testing or coding, let me know.  I don't know a 
lot about the parisc arch, but I would be willing to learn...  I would 
like to make linux a viable alternative to HP-UX for our clients, but 
since they are still stuck in 10.2x land, I don't think they will be very 
interested in change...  Still, these boxes would make pretty good 
development workstations around here, despite their size, power 
consumption, and heat output...


-- 
Freedom's just another word for nothing left to lose.
		-- Kris Kristofferson, "Me and Bobby McGee"




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Does anyone else get with from mke2fs:

This filesystem will be automatically checked every 22 mounts or
1.23076e-312 days, whichever comes first.  Use tune2fs -c or -i to override.

I really hope it doesn't want to check the filesystem that often :)

patrick




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On Mon, Jun 17, 2002 at 02:27:11PM +0200, joel.soete@freebel.net wrote:
> Quoting Patrick Caulfield <patrick@tykepenguin.com>:
> 
> > Does anyone else get with from mke2fs:
> > 
> > This filesystem will be automatically checked every 22 mounts or
> > 1.23076e-312 days, whichever comes first.  Use tune2fs -c or -i to
> > override.
> 
> Also notice this last Friday (but no time to report.
> 
> > 
> > I really hope it doesn't want to check the filesystem that often :)
> > 
> Dono, if tune2fs more relevant:
> Check interval:           15552000 (6 months)

That's right (and it's what I have). Looking at the source I can't quite figure
out why the display is wrong:

void print_check_message(ext2_filsys fs)
{
        printf(_("This filesystem will be automatically "
                 "checked every %d mounts or\n"
                 "%g days, whichever comes first.  "
                 "Use tune2fs -c or -i to override.\n"),
               fs->super->s_max_mnt_count,
               (double)fs->super->s_checkinterval / (3600 * 24));
}

I have verified that fs->super->s_checkinterval is still 15552000, but if I
write a program that prints out 15552000/(3600 * 24) then I get 180 as expected!

I'm not at all worried about it (though I have raised a Debian bug report) I
just wondered if it's just my machine.

-- 

patrick




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On Mon, Jun 17, 2002 at 02:02:11PM +0100, Patrick Caulfield wrote:
> void print_check_message(ext2_filsys fs)
> {
>         printf(_("This filesystem will be automatically "
>                  "checked every %d mounts or\n"
>                  "%g days, whichever comes first.  "
>                  "Use tune2fs -c or -i to override.\n"),
>                fs->super->s_max_mnt_count,
>                (double)fs->super->s_checkinterval / (3600 * 24));
> }

hehe.. passing a double to a varargs ... known bug ;-(  I think it's
fixed with gcc-3.1.

-- 
Revolutions do not require corporate support.



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Quoting Patrick Caulfield <patrick@tykepenguin.com>:

> Does anyone else get with from mke2fs:
> 
> This filesystem will be automatically checked every 22 mounts or
> 1.23076e-312 days, whichever comes first.  Use tune2fs -c or -i to
> override.

Also notice this last Friday (but no time to report.

> 
> I really hope it doesn't want to check the filesystem that often :)
> 
Dono, if tune2fs more relevant:

palinux:~# tune2fs -l /dev/sde1
tune2fs 1.27 (8-Mar-2002)
Filesystem volume name:   <none>
Last mounted on:          <not available>
Filesystem UUID:          9ef6bb62-df16-47c1-84ad-7a9ec6dc71a3
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal filetype sparse_super
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              262144
Block count:              523915
Reserved block count:     26195
Free blocks:              93589
Free inodes:              258235
First block:              0
Block size:               4096
Fragment size:            4096
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         16384
Inode blocks per group:   512
Last mount time:          Mon Jun 17 14:33:21 2002
Last write time:          Mon Jun 17 14:33:32 2002
Mount count:              4
Maximum mount count:      37
Last checked:             Fri Jun 14 19:09:41 2002
Check interval:           15552000 (6 months)
Next check after:         Wed Dec 11 18:09:41 2002
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:		  128
Journal UUID:             <none>
Journal inode:            8
Journal device:	          0x0000
First orphan inode:       0

Joel

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On Mon, Jun 17, 2002 at 02:02:11PM +0100, Patrick Caulfield wrote:
> On Mon, Jun 17, 2002 at 02:27:11PM +0200, joel.soete@freebel.net wrote:
> > Quoting Patrick Caulfield <patrick@tykepenguin.com>:
> > 
> > > Does anyone else get with from mke2fs:
> > > 
> > > This filesystem will be automatically checked every 22 mounts or
> > > 1.23076e-312 days, whichever comes first.  Use tune2fs -c or -i to
> > > override.

Hi,
I got to a similar weird number of days, just a few hours ago, when
I did a "sudo tune2fs -j /dev/sda3". Its so ridiculous I just didn't
care, ext3 works fine :). I rebooted my gecko (712/60) 2 times since
then, no fsck occured so far.

some info on my machine/setup :

 uname -a :
Linux hitomi 2.4.18-32 #1 Sat Mar 30 18:26:22 MST 2002 parisc unknown

 dumpe2fs /dev/sda3 :
...
Filesystem features:      has_journal filetype needs_recovery sparse_super
Filesystem state:         clean
...
Last mount time:          Mon Jun 17 01:36:18 2002
Last write time:          Mon Jun 17 01:46:57 2002
Mount count:              10
Maximum mount count:      29
Last checked:             Sat Apr  6 08:32:16 2002
Check interval:           15552000 (6 months)
Next check after:         Thu Oct  3 08:32:16 2002
...

 versions of tune2fs and mke2fs : 1.27 (8-Mar-2002)

Ciao,
	martin der hettich



-- 
Interpunktion und Orthographie dieser Email ist frei erfunden.
Eine Uebereinstimmung mit aktuellen oder ehemaligen Regeln
waere rein zufaellig und ist nicht beabsichtigt.



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In reference to a message from Patrick Caulfield, dated Jun 17:
> Does anyone else get with from mke2fs:
> 
> This filesystem will be automatically checked every 22 mounts or
> 1.23076e-312 days, whichever comes first.  Use tune2fs -c or -i to override.
> 
> I really hope it doesn't want to check the filesystem that often :)

yes, i've seen that many times in the past. my guess it's one of the
not-yet-fixed floating-point/varargs problems, but i haven't really
looked.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/



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Subject: [parisc-linux] tentative success with CRX24 framebuffer and X on a 720/50
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Friends,

I posted a request for advice about this on the list a couple of weeks
ago.  The 0.9.3 CD installed well, and then I did a dist-upgrade and
fiddled with kernel compiles to get fbcon and X going.

1. Trial and error within the kernel led to two one-line insertions in
stifb.c (starting with 1.30.2.1 in CVS) enabled CRX24 framebuffer
(a.k.a. HPA1439A) initialization at 32 bpp and correctly blanked the
text overlay plane.  Welcome to the penguin and color text.

Change #1: In function

  stifb_init_fb(struct sti_struct *sti, int force_bpp)

of /usr/src/linux/drivers/video/sti/stifb.c insert

  (fb->id != S9000_ID_A1439A) &&

as another line within the #if 1 #endif hack that prevents
initialization of any but the listed hardware.


Change #2: In function

  stifb_set_disp(struct stifb_info *fb)

insert

  ngleClearOverlayPlanes(fb, 0xff, 0);

before the break; within the "clear attribute planes" switch for this
case.

Change #3: Verify these settings in /usr/src/linux/.config

  CONFIG_FBCON=y
  CONFIG_FBCON_CFB8=y
  CONFIG_FBCON_CFB32=y
  CONFIG_FBCON_STI=y

(CFB8 is for a forthcoming test of 8-bit depth. 24 bits unaccelerated is
somewhat slow with X on this box.)


2. Telling XF86Config-4 that there is a 32 bit framebuffer having 24 bit
depth allowed X to start.  Welcome to a Gnome 1.4 splashscreen.


Performance of the console framebuffer is not bad, slightly slower than
the monochrome text that preceded it.  It's nice to have color.  No
apparent problems with the default font and 24bpp.

Performance under X was better than I expected considering the CPU
speed, the 24 bit depth, and the non-acceleration.  An 8-bit depth (if
achievable) and a lighter weight desktop than gnome+sawfish (windowmaker
perhaps) could get X close to routinely usable.  Except for a frequently
unresponsive serial mouse (very old M$ mouse) I experienced no basic
problems within X.

-- thanks, SP




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Subject: Re: [parisc-linux] Unaligned access failures with apt-get on SMP
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Cc: parisc-linux@lists.parisc-linux.org, richard_hirst@linuxcare.com
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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John et all,

I recompiled the debian apt-get package this time leaving the debug
symbols intact.  


Here is the function that is causing the failure:

// DynamicMMap::Allocate - Pooled aligned allocation                   
/*{{{*/
// ---------------------------------------------------------------------
/* This allocates an Item of size ItemSize so that it is aligned to its
   size in the file. */
unsigned long DynamicMMap::Allocate(unsigned long ItemSize)
{
   // Look for a matching pool entry
   Pool *I;
   Pool *Empty = 0;
   for (I = Pools; I != Pools + PoolCount; I++)
   {
      if (I->ItemSize == 0)
         Empty = I;
      if (I->ItemSize == ItemSize)
         break;
   }

   // No pool is allocated, use an unallocated one
   if (I == Pools + PoolCount)
   {
      // Woops, we ran out, the calling code should allocate more.
      if (Empty == 0)
      {
         _error->Error("Ran out of allocation pools");
         return 0;
      }

      I = Empty;
      I->ItemSize = ItemSize;
      I->Count = 0;
   }

   // Out of space, allocate some more
   if (I->Count == 0)
   {
      I->Count = 20*1024/ItemSize;
      I->Start = RawAllocate(I->Count*ItemSize,ItemSize);
   }

   I->Count--;
   unsigned long Result = I->Start;
   I->Start += ItemSize;
   return Result/ItemSize;
}


Here is my gdb output while tracing the failure:

root@rebel:~# gdb /usr/bin/apt-get 
GNU gdb 2002-04-01-cvs
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "hppa-linux"...

(gdb) b main
Breakpoint 1 at 0x27ea4: file apt-get.cc, line 2134.

(gdb) run install less
Starting program: /usr/bin/apt-get install less

Breakpoint 1, main (argc=3, argv=0x46e66) at apt-get.cc:2134
2134	   CommandLine CmdL(Args,_config);

(gdb) b DynamicMMap::Allocate
Breakpoint 2 at 0x40050358: file contrib/mmap.cc, line 229.

(gdb) continue
Continuing.
Reading Package Lists... 0%
Breakpoint 2, DynamicMMap::Allocate(unsigned long) (this=0x4c900,
ItemSize=275112) at contrib/mmap.cc:229
229	   Pool *Empty = 0;

(gdb) bt
#0  DynamicMMap::Allocate(unsigned long) (this=0x4c900, ItemSize=275112)
at contrib/mmap.cc:229
#1  0x400ba64c in pkgCacheGenerator::SelectFile(std::string,
std::string, pkgIndexFile const&, unsigned long) (this=0xbff01020, File=
        {static npos = 4294967295, _M_dataplus = {<allocator<char>> =
{<No data fields>}, _M_p = 0x489f4 "/var/lib/dpkg/status"}, static
_S_empty_rep_storage = {0, 0, 1, 18, 1, 0}}, Site={static npos =
4294967295, _M_dataplus = {<allocator<char>> = {<No data fields>}, _M_p
= 0x432b4 ""}, static _S_empty_rep_storage = {0, 0, 1, 18, 1, 0}},
Index=@0x4bda0, 
    Flags=1) at pkgcachegen.cc:404
#2  0x400e5a14 in debStatusIndex::Merge(pkgCacheGenerator&, OpProgress&)
const (this=0x4bda0, Gen=@0xbff01020, Prog=@0xbff00d90) at
/usr/include/g++-v3/bits/basic_string.h:863
#3  0x400bbf8c in BuildCache(pkgCacheGenerator&, OpProgress&, unsigned
long&, unsigned long, std::__normal_iterator<pkgIndexFile**,
std::vector<pkgIndexFile*, std::allocator<pkgIndexFile*> > >,
std::__normal_iterator<pkgIndexFile**, std::vector<pkgIndexFile*,
std::allocator<pkgIndexFile*> > >) (Gen=@0xbff01020,
Progress=@0xbff00d90, CurrentSize=@0xbff01190, 
    TotalSize=107592,
Start={<iterator<std::random_access_iterator_tag,pkgIndexFile*,int,pkgIndexFile**,pkgIndexFile*&>> = {<No data fields>}, _M_current = 0x4c578}, End=
     
{<iterator<std::random_access_iterator_tag,pkgIndexFile*,int,pkgIndexFile**,pkgIndexFile*&>> = {<No data fields>}, _M_current = 0x4c57c})
    at /usr/include/g++-v3/bits/stl_iterator.h:478
#4  0x400bd280 in pkgMakeStatusCache(pkgSourceList&, OpProgress&,
MMap**, bool) (List=@0xbff01020, Progress=@0xbff00d90,
OutMap=0xbff00990, AllowMem=224)
    at /usr/include/g++-v3/bits/stl_vector.h:187
#5  0x400ad8d4 in pkgCacheFile::Open(OpProgress&, bool)
(this=0xbff00990, Progress=@0xbff00d90, WithLock=true) at
cachefile.cc:70
#6  0x0002b794 in CacheFile::Open(bool) (this=0xbff00990, WithLock=56)
at apt-get.cc:85

(gdb) n
DynamicMMap::Allocate(unsigned long) (this=0x4c900, ItemSize=275112) at
contrib/mmap.cc:226
226	{   

(gdb) n
DynamicMMap::Allocate(unsigned long) (this=0x4c900, ItemSize=56) at
contrib/mmap.cc:230
230	   for (I = Pools; I != Pools + PoolCount; I++)

(gdb) n
232	      if (I->ItemSize == 0)

(gdb) n
234	      if (I->ItemSize == ItemSize)

(gdb) n
230	   for (I = Pools; I != Pools + PoolCount; I++)

(gdb) n
234	      if (I->ItemSize == ItemSize)

(gdb) n
230	   for (I = Pools; I != Pools + PoolCount; I++)

(gdb) n
234	      if (I->ItemSize == ItemSize)

(gdb) n
230	   for (I = Pools; I != Pools + PoolCount; I++)

(gdb) n
234	      if (I->ItemSize == ItemSize)

(gdb) n
230	   for (I = Pools; I != Pools + PoolCount; I++)

(gdb) n
234	      if (I->ItemSize == ItemSize)

(gdb) n
230	   for (I = Pools; I != Pools + PoolCount; I++)

(gdb) n
234	      if (I->ItemSize == ItemSize)

(gdb) n
230	   for (I = Pools; I != Pools + PoolCount; I++)

(gdb) n
234	      if (I->ItemSize == ItemSize)

(gdb) n
239	   if (I == Pools + PoolCount)

(gdb) n
254	   if (I->Count == 0)


========> Things get interesting here <=======

(gdb) n
261	   unsigned long Result = I->Start;

(gdb) n
263	   return Result/ItemSize;

(gdb) n
260	   I->Count--;

(gdb) n
263	   return Result/ItemSize;

(gdb) n

260	   I->Count--;
(gdb) n

Program received signal SIGBUS, Bus error.
DynamicMMap::Allocate(unsigned long) (this=0x4c900, ItemSize=56) at
contrib/mmap.cc:263
263	   return Result/ItemSize;


It looks like the the function gets exited twice.... but I do not see
any recursion in the function, and the function is not listed twice
in the origional back trace I posted.  Do we have a corrupt stack?
or can you think of anything else?  I would be glad to provide any
additional debugging output to anyone interested.  I can also give
remote access to this system if someone is interested in looking
this further.

Thanks,

- Ryan



On Sun, 2002-06-16 at 22:12, John David Anglin wrote:
> > any way I can tell from the binary?
> 
> Not that I am aware of.  On further thought, I think the user code is ok.
> 
> Studying you original message further, I see that the printout from
> unaligned.c is fully consistent with the register dump and user code.
> Thus, I have to think that the problem is actually in the kernel.
> 
> If the failure occurs all the time, I would put a break at 0x4005e47c
> and then set a large ignore count.  Run the program and see how many
> times the break is hit before the fault occurs.  Then, set the ignore
> count to 1 less than the number of hits and rerun.  If the fault is
> deterministic, you should be able to determine the exact conditions
> which cause the "trap".
> 
> Oh, I remember that gdb may not print r3 correctly with info reg.
> It's better to use p $r3 or printf "0x%x\n", $r3.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)
> 





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Subject: Re: [parisc-linux] tentative success with CRX24 framebuffer and X on a 720/50
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Hi Steve,

I applied your suggested changes to the CVS kernel 2.4.18-pa38. 
Since I don't have such a graphics card and can't test any changes here, 
please let me know if I did it correctly.

Greetings,
Helge

On Monday 17 June 2002 19:24, Steve Pacenka wrote:
> Friends,
>
> I posted a request for advice about this on the list a couple of weeks
> ago.  The 0.9.3 CD installed well, and then I did a dist-upgrade and
> fiddled with kernel compiles to get fbcon and X going.
>
> 1. Trial and error within the kernel led to two one-line insertions in
> stifb.c (starting with 1.30.2.1 in CVS) enabled CRX24 framebuffer
> (a.k.a. HPA1439A) initialization at 32 bpp and correctly blanked the
> text overlay plane.  Welcome to the penguin and color text.
>
> Change #1: In function
>
>   stifb_init_fb(struct sti_struct *sti, int force_bpp)
>
> of /usr/src/linux/drivers/video/sti/stifb.c insert
>
>   (fb->id != S9000_ID_A1439A) &&
>
> as another line within the #if 1 #endif hack that prevents
> initialization of any but the listed hardware.
>
>
> Change #2: In function
>
>   stifb_set_disp(struct stifb_info *fb)
>
> insert
>
>   ngleClearOverlayPlanes(fb, 0xff, 0);
>
> before the break; within the "clear attribute planes" switch for this
> case.
>
> Change #3: Verify these settings in /usr/src/linux/.config
>
>   CONFIG_FBCON=y
>   CONFIG_FBCON_CFB8=y
>   CONFIG_FBCON_CFB32=y
>   CONFIG_FBCON_STI=y
>
> (CFB8 is for a forthcoming test of 8-bit depth. 24 bits unaccelerated is
> somewhat slow with X on this box.)
>
>
> 2. Telling XF86Config-4 that there is a 32 bit framebuffer having 24 bit
> depth allowed X to start.  Welcome to a Gnome 1.4 splashscreen.
>
>
> Performance of the console framebuffer is not bad, slightly slower than
> the monochrome text that preceded it.  It's nice to have color.  No
> apparent problems with the default font and 24bpp.
>
> Performance under X was better than I expected considering the CPU
> speed, the 24 bit depth, and the non-acceleration.  An 8-bit depth (if
> achievable) and a lighter weight desktop than gnome+sawfish (windowmaker
> perhaps) could get X close to routinely usable.  Except for a frequently
> unresponsive serial mouse (very old M$ mouse) I experienced no basic
> problems within X.
>
> -- thanks, SP




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To: rbradetich@uswest.net (Ryan Bradetich)
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> (gdb) n
> 263	   return Result/ItemSize;
> 
> (gdb) n
> 
> 260	   I->Count--;
> (gdb) n
> 
> Program received signal SIGBUS, Bus error.
> DynamicMMap::Allocate(unsigned long) (this=0x4c900, ItemSize=56) at
> contrib/mmap.cc:263
> 263	   return Result/ItemSize;
> 
> 
> It looks like the the function gets exited twice.... but I do not see
> any recursion in the function, and the function is not listed twice
> in the origional back trace I posted.  Do we have a corrupt stack?
> or can you think of anything else?  I would be glad to provide any

I don't think the function exits twice.  The duplication in lines as
you step through the function is caused by optimisation.  A similar
effect is observable in the value for ItemSize printed at the
initial break.  If you print r25 at the break, you should see the
value 56.  The initial printout is wrong because the break is before
the point where the argument register is copied to the register or
stack slot for ItemSize.  It's also possible that the register of
stack slot used for ItemSize may get reused later in the function.
The fun and games of debugging!

If you put a break on line 263 and single step from that point you
should find the exact assembly insn causing the bus error and be able
to determine what's causing the bus error.

If the problem looks like a compilation error as opposed to a coding
problem, send me offline the preprocessed source, the assembly output for
DynamicMMap::Allocate(unsigned long) from your compiler, and the
compilation command.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Hi Matt,

Quoting Matt Taggart <taggart@carmen.fc.hp.com>:

> 
> The Color Recovery extension is only available in the HP-UX Xserver. No
> one 
> has been able to run the HP-UX Xserver on palinux yet.
> 

Any idea howto:
1) install
2) configure

I would try something to make my b2000 internel fxe running X.

Thanks for advice,
    Joel


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On Tue, Jun 18, 2002 at 11:05:59AM +0200, joel.soete@freebel.net wrote:
> Quoting Matt Taggart <taggart@carmen.fc.hp.com>:
> > The Color Recovery extension is only available in the HP-UX Xserver. No
> > one 
> > has been able to run the HP-UX Xserver on palinux yet.
> > 
> 
> Any idea howto:
> 1) install
> 2) configure
> 
> I would try something to make my b2000 internel fxe running X.

it's probably less work to teach XFree86 how to talk to your gfx card
than it is to get the HPUX X server to run on Linux.

-- 
Revolutions do not require corporate support.



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When the kernel boots it gets hung up trying to probe sda with the
following:

SCSO host 0 abort (pid 0) timed out resetting
SCSI bus is being reset for host 0 channel 9
ncr53c8xx_reset: pid 0 reset_flags=2 serial_number=84
serian_number_at_timeout=84
ncr53c720-0: suspicious SCSI data while resetting the BUS
ncr53c720-0:
dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,ath,msg,c/d,i/o=0X4020029, expecting
0x100

Any way around this.  This drive boots up just fine with the HP-UX10.20 that
is installed on it.

			-Thanks!
			   Mike




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On Sat, 15 Jun 2002, Masliy Alex wrote:

> On Sat, 15 Jun 2002 09:52:09 +0200
> Ralf Hildebrandt <Ralf.Hildebrandt@charite.de> wrote:
> 
> >> At first, I tried to install from CDROM. In the proccess of booting the
> >> following messages were printed:
> >> ---------------
> >> Trying to scsi.4.0
> >> Failed to initialize scsi.4.0
> >> ENTRY_INIT status = -13
> RH> Hmm. Was this drive working with that box under HP-UX?
>     Yes, of course. I was mounted the Debian Install Disk under HP-UX.
>     But it is old device (August 1993). 
> 
I have the exact same problem on this hardware. As long as I boot the
kernel from network, the whole linux system comes up fine. But the BIOS
won't load the PALO from disk. :-( Throw in the old UX disk, and it just
boots.
I know there's a firmware update for the faster 715's (66MHz and
up). Could this be a firmware bug? 

Tim.




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Cc: Masliy Alex <masliy@kfti.knc.ru>,
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Am 18.06.2002 um 22:41:04 +0200 schrieb Tim ter Laak folgendes:

> I have the exact same problem on this hardware. As long as I boot the
> kernel from network, the whole linux system comes up fine. But the BIOS
> won't load the PALO from disk. :-( Throw in the old UX disk, and it just
> boots.
> I know there's a firmware update for the faster 715's (66MHz and
> up). Could this be a firmware bug? 

Maybe. You can perform a firmware update using tftp and bootp, its just
like booting the kernel.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Computer /nm./: a device designed to speed and automate errors.
                                       -- From the Jargon File. 




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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] SCSI Boot Problems on HP C110/9000
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Quoting Michael Audette <Mike.Audette@synopsys.com>:


> SCSI bus is being reset for host 0 channel 9
> ncr53c8xx_reset: pid 0 reset_flags=2 serial_number=84
> serian_number_at_timeout=84
> ncr53c720-0: suspicious SCSI data while resetting the BUS
> ncr53c720-0:
> dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,ath,msg,c/d,i/o=0X4020029,
> expecting
> 0x100
> 

External disk? (scsi id 9?)
If it is an external disk, check the scsi chaine (frequently no or not proper
scsi terminator).
If it is an internal disk, check that entension connector are also 'closed' by
proper scsi terminator.

Good luck,
    Joel

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On Tue, Jun 18, 2002 at 04:35:48PM -0400, Michael Audette wrote:
> When the kernel boots it gets hung up trying to probe sda with the
> following:
> 
> SCSO host 0 abort (pid 0) timed out resetting
> SCSI bus is being reset for host 0 channel 9
> ncr53c8xx_reset: pid 0 reset_flags=2 serial_number=84
> serian_number_at_timeout=84
> ncr53c720-0: suspicious SCSI data while resetting the BUS
> ncr53c720-0:
> dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,ath,msg,c/d,i/o=0X4020029, expecting
> 0x100
 
I got something very similar when I had a SCSI-1 CD-ROM driver attached to the
external SCSI port. When I unplugged it it went away and the system booted fine
though.

This was with the Debian 2.4.17 kernel.

patrick




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Subject: Re: [parisc-linux] SCSI Boot Problems on HP C110/9000
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On Tue, Jun 18, 2002 at 04:35:48PM -0400, Michael Audette wrote:
> When the kernel boots it gets hung up trying to probe sda with the
> following:
> 
> SCSO host 0 abort (pid 0) timed out resetting
> SCSI bus is being reset for host 0 channel 9
> ncr53c8xx_reset: pid 0 reset_flags=2 serial_number=84
> serian_number_at_timeout=84
> ncr53c720-0: suspicious SCSI data while resetting the BUS
> ncr53c720-0:
> dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,ath,msg,c/d,i/o=0X4020029, expecting
> 0x100
> 
> Any way around this.  This drive boots up just fine with the HP-UX10.20 that
> is installed on it.

booting with "ncr53c8xx=buschk:2" will make that error turn in to a
warning, buschk:0 will say don't bother checking at all.

What do you mean by "gets hung up"?  It should just fail that scsi
controller and continue to boot.

The actual error means the scsi bus is not in an idle state following
reset, as if some device on the bus is active.  Do you have any devices
you can remove from the bus?  Is the bus terminated?

Richard



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From: Bruno =?iso-8859-1?Q?L=E9on?= <nonolemono@yahoo.fr>
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Subject: [parisc-linux] Only serial console for B1000 (64bits) ?
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I'm currently trying to install the Woody on a B1000 computer (64bits
architecture). 
I'm using a CD to boot - that worked fine on a B180L (32bits) - and I'm
telling palo to use the vmlinux64 instead of the simple vmlinux. This part
is done using a screen connected to the B1000 station.
My problem is that when the computer starts to boot, the screen move to
stand by mode.
Is it that only serial console is supported? I'm wondering coz I connect a
vt100 to the serial port, and I didn't get any signal on it :(

Hope you'll be able to help ;)




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Nothing about it ?




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Subject: [parisc-linux] hppa64-linux-gcc not in gcc dpkg?
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Hi all,

To verify my ioctl32 patch for 64bit kernel I am just trying to compile last cvs
kernel in 64bits on my b2000 (PA8600?). To do so, in make menu config, i choose
procesor type PA8x00, 64bits kernel && 32bits PDC (because b2000).

But when I launch make dep, it failled because it did not find hpp64-linux-gcc?
I search on http://www.debian.org/distrib/packages but no success?

Do I have to report this problem to debian gcc package maintainer?
(IIRC for other paltform a compiler paramater avoid to have seperate bin)

Also to be sure to build it with Carlos tool chain, I had to specify
--target=hppa64-linux?

Thanks in advance for advice,
    Joel

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On Wed, Jun 19, 2002 at 03:28:08PM +0200, joel.soete@freebel.net wrote:
> To verify my ioctl32 patch for 64bit kernel I am just trying to compile last cvs
> kernel in 64bits on my b2000 (PA8600?). To do so, in make menu config, i choose
> procesor type PA8x00, 64bits kernel && 32bits PDC (because b2000).

what makes you think that you should use 32-bit PDC on b2000?

> But when I launch make dep, it failled because it did not find hpp64-linux-gcc?
> I search on http://www.debian.org/distrib/packages but no success?

get the packages from ftp://ftp.parisc-linux.org/unofficial-debs.

-- 
Revolutions do not require corporate support.



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Quoting Bruno Lon <nonolemono@yahoo.fr>:

> I'm currently trying to install the Woody on a B1000 computer (64bits
> architecture). 
> I'm using a CD to boot - that worked fine on a B180L (32bits) - and I'm

which CD?

> telling palo to use the vmlinux64 instead of the simple vmlinux. This
> part
> is done using a screen connected to the B1000 station.

Try first 32bits kernel (till now I am running successfuly a 32bits pa37 on a
b2000) with a serial console.

Then may be you would like to get a more recent kernel in 64bits (see
ftp://ftp.parisc-linux.org/kernels/).

Joel



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Quoting Matthew Wilcox <willy@debian.org>:

> On Wed, Jun 19, 2002 at 03:28:08PM +0200, joel.soete@freebel.net wrote:
> > To verify my ioctl32 patch for 64bit kernel I am just trying to
> compile last cvs
> > kernel in 64bits on my b2000 (PA8600?). To do so, in make menu config,
> i choose
> > procesor type PA8x00, 64bits kernel && 32bits PDC (because b2000).
> 
> what makes you think that you should use 32-bit PDC on b2000?

May I am wrong (I thought that the PDC of the b2000 was not a 64bits one; I will
check )

> 
> > But when I launch make dep, it failled because it did not find
> hpp64-linux-gcc?
> > I search on http://www.debian.org/distrib/packages but no success?
> 
> get the packages from ftp://ftp.parisc-linux.org/unofficial-debs.

 
Many thanks for all,
    Joel


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Everyone,

Thanks for the help.  I searched back in the forum another month and saw a
very similar message with a response top it that said "sounds like SCSI
termination problem".  I think this is actually a driver problem.  Both
disks are on the internal SCSI chain and internally terminated (2 GB Segate
and a Toshiba CDROM).  I did have SCSI terminator s on the external ports
(HP-UX wouldn't boot without them) (Both the Fast-Wide and the Single
Ended).

The problem suddenly went away when I removed these external SCSI
terminators.  This seems to be incorrect behavior (unless the controller
chip has built-in termination)  Anyhow,  After removing the terminators the
system booted fine.

To answer someone else's' question.  The system did not hang per se, it got
stuck in a loop trying to reset the SCSI ports.  This caused the system to
not completely boot.  Has anyone gotten external SCSI working on a C110?

					-Thanks!

						Mike


-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Michael
Audette
Sent: Tuesday, June 18, 2002 4:36 PM
To: parisc-linux@lists.parisc-linux.org
Subject: [parisc-linux] SCSI Boot Problems on HP C110/9000


When the kernel boots it gets hung up trying to probe sda with the
following:

SCSO host 0 abort (pid 0) timed out resetting
SCSI bus is being reset for host 0 channel 9
ncr53c8xx_reset: pid 0 reset_flags=2 serial_number=84
serian_number_at_timeout=84
ncr53c720-0: suspicious SCSI data while resetting the BUS
ncr53c720-0:
dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,ath,msg,c/d,i/o=0X4020029, expecting
0x100

Any way around this.  This drive boots up just fine with the HP-UX10.20 that
is installed on it.

			-Thanks!
			   Mike


_______________________________________________
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>>Which CD?
The 0.9.3 iso cd downloaded from the Esiee team Website.

>Try first 32bits kernel (till now I am running successfuly a 32bits pa37 on a
b2000) with a serial console.
I tried both kernels in fact, but none of them seem to work.

>Then may be you would like to get a more recent kernel in 64bits (see
>ftp://ftp.parisc-linux.org/kernels/).
I will change the kernel hopefuly, but I need to install a first one... ;-)

Here is the error I get on the LCD of the B1000 :
FLT CBF4: SYS BD
bad OS HPMC cksm 
FLT CBFC: SYS BD 
OS HPMC br err 
FLT 500B: SYS BD 
bus timeout 

Another guy named "Yasholomew Yashinski" report the same error in february,
but 
I didn't understand how he solved his problem.

I will look into netbooting perhaps.

Thanks for help,
Bruno.







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On Wed, Jun 19, 2002 at 04:07:03PM +0200, joel.soete@freebel.net wrote:
> May I am wrong (I thought that the PDC of the b2000 was not a 64bits one; I will
> check )

ah, you relied on memory rather than reading the help text then?

32-bit PDC
CONFIG_PDC_NARROW
  Saying Y here will allow developers with a C180, C200, C240, C360,
  J200, J210, and/or a J2240 to test 64-bit kernels by providing a
  wrapper for the 32-bit PDC calls.  Since the machines which require
  this option do not support over 4G of RAM, this option is targeted
  for developers of these machines wishing to test changes on both
  32-bit and 64-bit configurations.

  If unsure, say N.

b2000 and similar machines have firmware which supports both 32 and 64
bit PDC calls.

-- 
Revolutions do not require corporate support.



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> Thanks for the help.  I searched back in the forum another month and saw a
> very similar message with a response top it that said "sounds like SCSI
> termination problem".  I think this is actually a driver problem.  Both
> disks are on the internal SCSI chain and internally terminated (2 GB Segate
> and a Toshiba CDROM).  I did have SCSI terminator s on the external ports
> (HP-UX wouldn't boot without them) (Both the Fast-Wide and the Single
> Ended).

There should be a terminator at each end of the SCSI bus.  Typically,
you don't have to worry about the processor end.  Old Seagate drives
have internal termination resistors that need to be removed if the
drive is not at the end of the bus or you are using an external terminator.
The Seagate web site has user guides online for all models.  The Toshiba
CDROM probably has a switch to disable the internal terminator.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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There are external SCSI termination blocks on the internal cable.  Both the
segate HD and Toshiba CD-ROM have sockets for the terminator resistors, but
they are removed.  The problem (and messages) occur when I have the External
SCSI terminators plugged in.  This is what I don't understand.  It does not
work with the _external_ terminators plugged in....where HP-UX wouldn't boot
unless the external terminators were plugged in. Odd.  But the system does
boot and run the "woody" beta OK without the external SCSI terminators

			-Mike

-----Original Message-----
From: John David Anglin [mailto:dave@hiauly1.hia.nrc.ca]
Sent: Wednesday, June 19, 2002 10:39 AM
To: Michael Audette
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] SCSI Boot Problems on HP C110/9000


> Thanks for the help.  I searched back in the forum another month and saw a
> very similar message with a response top it that said "sounds like SCSI
> termination problem".  I think this is actually a driver problem.  Both
> disks are on the internal SCSI chain and internally terminated (2 GB
Segate
> and a Toshiba CDROM).  I did have SCSI terminator s on the external ports
> (HP-UX wouldn't boot without them) (Both the Fast-Wide and the Single
> Ended).

There should be a terminator at each end of the SCSI bus.  Typically,
you don't have to worry about the processor end.  Old Seagate drives
have internal termination resistors that need to be removed if the
drive is not at the end of the bus or you are using an external terminator.
The Seagate web site has user guides online for all models.  The Toshiba
CDROM probably has a switch to disable the internal terminator.

Dave
--
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX:
952-6605)




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Subject: Re: [parisc-linux] SCSI Boot Problems on HP C110/9000
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> There are external SCSI termination blocks on the internal cable.  Both the
> segate HD and Toshiba CD-ROM have sockets for the terminator resistors, but
> they are removed.  The problem (and messages) occur when I have the External
> SCSI terminators plugged in.  This is what I don't understand.  It does not
> work with the _external_ terminators plugged in....where HP-UX wouldn't boot
> unless the external terminators were plugged in. Odd.  But the system does
> boot and run the "woody" beta OK without the external SCSI terminators

The problem may then be that terminator power isn't being provided to the
bus, or you have a bad cable, or wrong external terminator type (e.g.,
narrow fast differential terminator on SE bus).  You could try internal
termination of last device.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] Only serial console for B1000 (64bits) ?
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Quoting Bruno Lon <nonolemono@yahoo.fr>:

> 
> >>Which CD?
> The 0.9.3 iso cd downloaded from the Esiee team Website.
Well ...
> 
> >Try first 32bits kernel (till now I am running successfuly a 32bits
> pa37 on a
> b2000) with a serial console.
> I tried both kernels in fact, but none of them seem to work.
> 
> >Then may be you would like to get a more recent kernel in 64bits (see
> >ftp://ftp.parisc-linux.org/kernels/).
> I will change the kernel hopefuly, but I need to install a first one...
> ;-)
> 
> Here is the error I get on the LCD of the B1000 :
> FLT CBF4: SYS BD
> bad OS HPMC cksm 
> FLT CBFC: SYS BD 
> OS HPMC br err 
> FLT 500B: SYS BD 
> bus timeout 
> 

I could not help here (I suspect the problem of ide CD-Rom solved now)

> Another guy named "Yasholomew Yashinski" report the same error in
> february,
> but 
> I didn't understand how he solved his problem.

Do not remember but ...

> 
> I will look into netbooting perhaps.
> 

Yes, that is what I do to install my b2000 (as a copy of my b180).

But now an easiest way for you would certainly be to download a more recent
cd-image into: http://pateam.esiee.fr/cd-images/testing/
(see also explanation on http://pateam.esiee.fr/download.html#deb page)

Many progress where made since my test (about a month ago).
At least it would help you to format your disk and (if as I you do not access
internet from your b1000) a shell which would allow you to copy your b180 on
your  b1000.

I am confident that this solution will help you successfully,

Joel


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Quoting Matthew Wilcox <willy@debian.org>:

> On Wed, Jun 19, 2002 at 04:07:03PM +0200, joel.soete@freebel.net wrote:
> > May I am wrong (I thought that the PDC of the b2000 was not a 64bits
> one; I will
> > check )
> 
> ah, you relied on memory rather than reading the help text then?
> 
> 32-bit PDC
> CONFIG_PDC_NARROW
>   Saying Y here will allow developers with a C180, C200, C240, C360,
>   J200, J210, and/or a J2240 to test 64-bit kernels by providing a
>   wrapper for the 32-bit PDC calls.  Since the machines which require
>   this option do not support over 4G of RAM, this option is targeted
>   for developers of these machines wishing to test changes on both
>   32-bit and 64-bit configurations.
> 
>   If unsure, say N.
> 
> b2000 and similar machines have firmware which supports both 32 and 64
> bit PDC calls.
> 
Nice (for sure next time I will read help)
Thanks a lot,
    Joel



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Has anyone been able to get X up and going on the C110 with the default
(EISA/???) graphics card?  If so is there an XF86conf?

			-Thanks!
			  Mike




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From: "Duraid Madina" <duraid@fl.net.au>
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Subject: [parisc-linux] Unsolicited commercial email ;-) (for sale, rp2430 pa-8700 system)
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Hi guys,

	Want a PA-8700 system? Have a look here: 

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2033379229

	Apologies in advance if this makes you drool or otherwise
disturbs you ;-)

	Duraid




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Hi,

Short question,

Did anybody already succeed in compiling mailman?
Here (712/100) it failed.

Hans



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Xref: news.gmane.org gmane.linux.ports.parisc:15152

Hi,

There is a binary from debian:
alysee:~$ apt-cache search mailman
lists-archives - Web archive for mailing lists
mailman - Powerful, web-based mailing list manager
So if you still want to build your own, download the tarball and the 
patch applied by the maintainer from:
http://packages.debian.org/testing/mail/mailman.html
and have a look on the options used.

Regards,
Matthieu

Witvliet, Hans wrote:

>Hi,
>
>Short question,
>
>Did anybody already succeed in compiling mailman?
>Here (712/100) it failed.
>
>Hans
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>






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On Tue, 18 Jun 2002 22:41:04 +0200 (CEST)
Tim ter Laak <timl@scintilla.utwente.nl> wrote:

>> >> At first, I tried to install from CDROM. In the proccess of booting
>>the
>> >> following messages were printed:
>> >> ---------------
>> >> Trying to scsi.4.0
>> >> Failed to initialize scsi.4.0
>> >> ENTRY_INIT status = -13
>> RH> Hmm. Was this drive working with that box under HP-UX?
>>     Yes, of course. I was mounted the Debian Install Disk under HP-UX.
>>     But it is old device (August 1993). 
TTL> I have the exact same problem on this hardware. As long as I boot the
TTL> kernel from network, the whole linux system comes up fine. But the
TTL> BIOS won't load the PALO from disk. :-( Throw in the old UX disk, and
it
TTL> just boots.
      I could not exactly understand what does the last phrase mean.
Either I must stop my attempts to install Linux on this mashine or I must
take older distribution version or what?

TTL> I know there's a firmware update for the faster 715's (66MHz and
TTL> up). Could this be a firmware bug? 
       May be,  but how can I find out that thing?

--
 ,
 			mailto:masliy@kfti.knc.ru




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On Thu, Jun 20, 2002 at 12:55:06PM +0400, Masliy Alex wrote:

>       I could not exactly understand what does the last phrase mean.
> Either I must stop my attempts to install Linux on this mashine or I must
> take older distribution version or what?

Update the firmware maybe?
 
> TTL> I know there's a firmware update for the faster 715's (66MHz and
> TTL> up). Could this be a firmware bug? 
>        May be,  but how can I find out that thing?

Boot the box, look at the firmware version.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
(s)he can't be reached via phone or e-mail becuase (s)he is too busy on usenet telling everybody how busy (s)he is or thinking up 101 reasons why (s)he can't be found. -- D. Allen Bassham abassham@svm.com




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On Thu, Jun 20, 2002 at 10:50:50AM +0200, Witvliet, Hans wrote:
> Hi,
> 
> Short question,
> 
> Did anybody already succeed in compiling mailman?
> Here (712/100) it failed.

What failed and how?

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
Finished a double shift and is out back wondering what that big burning ball in the sky is. 




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On Thu, 20 Jun 2002, Ralf Hildebrandt wrote:

> On Thu, Jun 20, 2002 at 12:55:06PM +0400, Masliy Alex wrote:
> 
> >       I could not exactly understand what does the last phrase mean.
> > Either I must stop my attempts to install Linux on this mashine or I must
> > take older distribution version or what?
> 
> Update the firmware maybe?
>  
I searched for a few days for new firmware for a 715/50, but didn't find
anything. Only for the faster 715's, but their hardware is slightly
different. So I wouldn't try that update on a 715/50.

*If* this really is a firmware bug (that's still merely speculation), a
workaround for Palo could be made (after all, HP-UX will boot). It
might even be a Palo bug?

Tim.




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On Thu, Jun 20, 2002 at 12:53:24PM +0200, Tim ter Laak wrote:
> I searched for a few days for new firmware for a 715/50, but didn't find
> anything. Only for the faster 715's, but their hardware is slightly
> different. So I wouldn't try that update on a 715/50.

the hardware's quite radically different ... plus i believe that upgrading
715/Scorpio firmware invlves an EEPROM burner and swapping some chips.

-- 
Revolutions do not require corporate support.



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Xref: news.gmane.org gmane.linux.ports.parisc:15158

Sorry,

My college confused two things; it's a problem with hypermail version 2.1.4
When starting with ./configure he gets: (manual copy)
checking host system type ... hppa1.1-unknown-linux-gnu
checking target system type.. hppa1.1-unknown-linux-gnu
checking build system type... hppa1.1-unknown-linux-gnu
....
.....
creating config.h

next he types: make, and gets:
building libtool
checking host system type .... invalid configuragtion:
''parisc-unknown-linux-gnu': machine 'parisc-unknown' not recognized.
..
make tables error 127
pcre/libpcre.a error 2
hypermail error 2


Hans

	-----Original Message-----
	From:	Ralf Hildebrandt [SMTP:Ralf.Hildebrandt@charite.de]
	Sent:	Thursday, June 20, 2002 11:52 AM
	To:	Witvliet, Hans
	Cc:	parisc-linux@lists.parisc-linux.org
	Subject:	Re: [parisc-linux] mail-man

	On Thu, Jun 20, 2002 at 10:50:50AM +0200, Witvliet, Hans wrote:
	> Hi,
	> 
	> Short question,
	> 
	> Did anybody already succeed in compiling mailman?
	> Here (712/100) it failed.

	What failed and how?

	-- 
	Ralf Hildebrandt (Im Auftrag des Referat V A)
Ralf.Hildebrandt@charite.de
	Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450
570-155
	Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450
570-916
	Why you can't find your system administrators:
	Finished a double shift and is out back wondering what that big
burning ball in the sky is. 



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Xref: news.gmane.org gmane.linux.ports.parisc:15159

Am 20.06.2002 um 14:26:31 +0200 schrieb Witvliet, Hans folgendes:

> My college confused two things; it's a problem with hypermail version 2.1.4
> When starting with ./configure he gets: (manual copy)
> checking host system type ... hppa1.1-unknown-linux-gnu
> checking target system type.. hppa1.1-unknown-linux-gnu
> checking build system type... hppa1.1-unknown-linux-gnu
> ....
> .....
> creating config.h
> 
> next he types: make, and gets:
> building libtool
> checking host system type .... invalid configuragtion:
> ''parisc-unknown-linux-gnu': machine 'parisc-unknown' not recognized.
> ..
> make tables error 127
> pcre/libpcre.a error 2
> hypermail error 2

I see. The configure script doesn't "know" the system type
"hppa1.1-unknown-linux-gnu". Go get the Debian source package and use
that. In there, you can find the patches that were used to make the
thing compile correctly.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
Busy installing a new clutch to better shift paradigms with. (ala Dilbert) --Michael Faurot mfaurot@phzzzt.atww.org




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On Thu, Jun 20, 2002 at 02:26:31PM +0200, Witvliet, Hans wrote:
> next he types: make, and gets:
> building libtool
> checking host system type .... invalid configuragtion:
> ''parisc-unknown-linux-gnu': machine 'parisc-unknown' not recognized.
> ..

looks like out of date config.{sub,guess}.  as has been said elsewhere,
the debian packages have been updated with these things, but maybe
upstream hasn't.

-- 
Revolutions do not require corporate support.



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Subject: [parisc-linux] Your patch: root=/dev/scsi/sdcXbXtXuXpX support
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Hi Kurt,

On lwn.net I found your patch specially interesting because I encounter the
problem it solves last friday on my parisc-linux box.

I would to test your patch on my parisc-linux box but dono how to find back the
original patch. Could you send me in answer?

Thanks in advance for help,

    Joel



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From: Bruno =?iso-8859-1?Q?L=E9on?= <nonolemono@yahoo.fr>
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Subject: Re: [parisc-linux] Only serial console for B1000 (64bits) ?
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>But now an easiest way for you would certainly be to download a more recent
>cd-image into: http://pateam.esiee.fr/cd-images/testing/
>(see also explanation on http://pateam.esiee.fr/download.html#deb page)

>I am confident that this solution will help you successfully,

Thanks for that Joel, after downloading this cd-image, I managed to install
the debian system on the B1000 workstation.

However, I'm trying to install packages using apt-get and dselect, but none
of the website seems to reply, or they do not accept me.
Which url did you use to install additionnal packeges ?
 
Thanks a lot again.
Bruno.




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i just played around with my machine and stated that setting the baudrate
on the serial(rs232) to 57600(8n1) didnt work...
using 9600baud works ok

i was using minicom to connect to another machine (an embed. ppc) via
nullmodem-cable

i was using minicom on my pc in the same config (debian unstable,
2.4.16-adc1 on the pc, debian unstable, 2.4.17-32 from debian on the hppa)

anybody noticed a similar behaviour?
or are just all baudrates other than 9600 broken on the hppa-kernel?

TIA

roh




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Quoting Bruno Lon <nonolemono@yahoo.fr>:

> >But now an easiest way for you would certainly be to download a more
> recent
> >cd-image into: http://pateam.esiee.fr/cd-images/testing/
> >(see also explanation on http://pateam.esiee.fr/download.html#deb
> page)
> 
> >I am confident that this solution will help you successfully,
> 
> Thanks for that Joel, after downloading this cd-image, I managed to
> install
> the debian system on the B1000 workstation.
> 
> However, I'm trying to install packages using apt-get and dselect, but
> none
> of the website seems to reply, or they do not accept me.
> Which url did you use to install additionnal packeges ?
>  
For my part I could not made a complete install from apt-get because I did have
connection to internet. So I used the shell to copy my b180 with nfs.

Never the less I do frequently apt-get update via following url:

deb http://ftp.de.debian.org/debian unstable main contrib non-free
deb http://ftp.de.debian.org/debian-non-US unstable/non-US main contrib non-free

Happy to help you,
	Joel


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Subject: Re: [parisc-linux] serial on hp712/80 buggy?
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Quoting Joachim Steiger <roh@hyte.de>:

> 
> i just played around with my machine and stated that setting the
> baudrate
> on the serial(rs232) to 57600(8n1) didnt work...
> using 9600baud works ok
> 
> i was using minicom to connect to another machine (an embed. ppc) via
> nullmodem-cable
> 
> i was using minicom on my pc in the same config (debian unstable,
> 2.4.16-adc1 on the pc, debian unstable, 2.4.17-32 from debian on the
> hppa)
> 
> anybody noticed a similar behaviour?
> or are just all baudrates other than 9600 broken on the hppa-kernel?
> 
On my 712/80, I also experiment some problems when I try to connect my ISP via
ppp;
"pon MyIsp" failled as follow :
...
Jun 20 18:35:30 palinux2 chat[18284]: send (ATZ^M)
Jun 20 18:35:30 palinux2 chat[18284]: expect (OK)
Jun 20 18:36:15 palinux2 chat[18284]: alarm
Jun 20 18:36:15 palinux2 chat[18284]: send (AT^M)
Jun 20 18:36:15 palinux2 chat[18284]: expect (OK)
Jun 20 18:37:00 palinux2 chat[18284]: alarm
Jun 20 18:37:00 palinux2 chat[18284]: Failed
Jun 20 18:37:00 palinux2 pppd[18283]: Connect script failed
Jun 20 18:37:01 palinux2 pppd[18283]: Exit.
...

But do not find enough time to investigate in much detail this problem, sorry :(

Joel

PS: this same modem connection works perfectly from a pc?

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On Thu, 20 Jun 2002 joel.soete@freebel.net wrote:

> But do not find enough time to investigate in much detail this problem, sorry :(
neither i did... but if this is a 'new thingie' i'll take a closer look
> 
> Joel
> 
> PS: this same modem connection works perfectly from a pc?
yes.. it also worked perfectly on 9600baud

roh




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Quoting Joachim Steiger <roh@hyte.de>:

> 
> 
> On Thu, 20 Jun 2002 joel.soete@freebel.net wrote:
> 
> > But do not find enough time to investigate in much detail this
> problem, sorry :(
> neither i did... but if this is a 'new thingie' i'll take a closer look
> > 
> > Joel
> > 
> > PS: this same modem connection works perfectly from a pc?
> yes.. it also worked perfectly on 9600baud
> 
Do not works for me?
In pppconfig I force 9600 bauds MyIsp connection, but do I also have to forc?
the modem config to 9600bauds?

Thanks for advise,
	joel


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On Thu, 20 Jun 2002 joel.soete@freebel.net wrote:

> Do not works for me?
> In pppconfig I force 9600 bauds MyIsp connection, but do I also have to forc?
> the modem config to 9600bauds?
> 
> Thanks for advise,
> 	joel

i think the problem in this case could be that the 'handshake-wires' on
the serial are also not working?

i don't use them (no flow control at all) so i do'nt know..

i never used analog modems to dialin... we got isdn pretty early *eg*
so i can just 'think loud'

can you 'speak AT' to your modem via minicom or some app similar?

roh




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Quoting Joachim Steiger <roh@hyte.de>:

> 
> 
> On Thu, 20 Jun 2002 joel.soete@freebel.net wrote:
> 
> > But do not find enough time to investigate in much detail this
> problem, sorry :(
> neither i did... but if this is a 'new thingie' i'll take a closer look
> > 
> > Joel
> > 
> > PS: this same modem connection works perfectly from a pc?
> yes.. it also worked perfectly on 9600baud
> 
Hmm, I find back my 712 Owner's guide in witch it is mentionned that "The port
operates at up to a 19.2k baud rate."

Joel

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On Thu, 20 Jun 2002 joel.soete@freebel.net wrote:

> Hmm, I find back my 712 Owner's guide in witch it is mentionned that "The port
> operates at up to a 19.2k baud rate."
> 
> Joel

ugh... but shouldnt the serial driver return -EIO or -EINVAL when setting
a unsupported baudrate?

roh




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Quoting Joachim Steiger <roh@hyte.de>:

> 
> 
> On Thu, 20 Jun 2002 joel.soete@freebel.net wrote:
> 
> > Hmm, I find back my 712 Owner's guide in witch it is mentionned that
> "The port
> > operates at up to a 19.2k baud rate."
> > 
> > Joel
> 
> ugh... but shouldnt the serial driver return -EIO or -EINVAL when
> setting
> a unsupported baudrate?

Dono, sorry (I do not have enough knowledge :( )

Joel


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On Thu, Jun 20, 2002 at 04:49:12PM +0200, Joachim Steiger wrote:
> i just played around with my machine and stated that setting the baudrate
> on the serial(rs232) to 57600(8n1) didnt work...
> using 9600baud works ok

according to the lasi ERS, provided on the website, the lasi serial port
works up to 454k baud.  it's supposed to programmatically identical to
the 16550A.

-- 
Revolutions do not require corporate support.



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> 
> i just played around with my machine and stated that setting the baudrate
> on the serial(rs232) to 57600(8n1) didnt work...
> using 9600baud works ok
>

Where did you set the baud rate?
In minicom _and_ the console (Boot admin)?

It's up to both ends to support automatic baud rate selection
via a terminal protocol. I don't think the console on the
712 will do that (I'm sure VT-MODEM can...).

c.



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On Thu, 20 Jun 2002, Carlos O'Donell wrote:
> Where did you set the baud rate?
> In minicom _and_ the console (Boot admin)?
i used the hppa just as 'console' to access an embedded-ppc
i reconnected the same cable to my pc and started minicom there
and it worked
on 9600baud i can use minicom on the hppa as on the pc

i also know there seems to be some kind of 'bug' that on most computers i
have to close and reopen the serial-device to get the baudrate change
through
in case of minicom it means to set the baudrate, save it as default , then
quit and restart minicom

> It's up to both ends to support automatic baud rate selection
> via a terminal protocol. I don't think the console on the
> 712 will do that (I'm sure VT-MODEM can...).
if setting it manually don't work, how should a automatic work??

there is no terminal protocol, its just that accessing the ootloader on
the ppc happens via 9k6 and 'flashing' it happens with 57600

i'm fairly shure that it MUST be an hppa soft/hardwareproblem since i
switched the cables and they are working correctly on other machines as on
9k6 on the hppa

regards

roh

ps: i will try to find out which is the setting my serial-port is is when
it should be 57600 by just feeding it with different baudrates and watch
when its displayed correctly soon




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"Duraid Madina" wrote:
> 	Want a PA-8700 system? Have a look here: 
> 
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2033379229

Nice. As a non-ebay user, can someone forward my correction this fellow's
description of the rp2430?
It does have 4 PCI Host bus adapters with about ~2GB backplane bandwidth.
But 2 of the PCI slots share one of the PCI Host bus adapters.

grant



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Masliy Alex wrote:
> TTL> I know there's a firmware update for the faster 715's (66MHz and
> TTL> up). Could this be a firmware bug? 
>        May be,  but how can I find out that thing?

Read the "patch" description for the latest firmware version.
It should have a changelog in it.

grant



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To: Kurt Garloff <garloff@suse.de>
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Kurt,

Congratulation and thanks a lot; this patch works fine on my hppa parisc-linux
against a kernel of mine 2.4.19-pre10(-pa37). Very great :))

Joel

PS: I just notice a small detail. In your script you use the variable SDIRMODE
(line 115) but it is not set elsewhere so the mkdir /dev/scsi failled (not
enough argument). (i export SDIRMODE=0755 ?)

Quoting Kurt Garloff <garloff@suse.de>:

> Hi Jol,
> 
> On Thu, Jun 20, 2002 at 02:50:20PM +0200, joel.soete@freebel.net wrote:
> > Hi Kurt,
> > 
> > On lwn.net I found your patch specially interesting because I
> encounter the
> > problem it solves last friday on my parisc-linux box.
> > 
> > I would to test your patch on my parisc-linux box but dono how to find
> back the
> > original patch. Could you send me in answer?
> 
> OK, here we go.
> You need the scsi-map patch as prerequisite for the scsi-map-boot.
> 
> Regards,
> -- 
> Kurt Garloff                   <kurt@garloff.de>         [Eindhoven,
> NL]
> Physics: Plasma simulations    <K.Garloff@TUE.NL>     [TU Eindhoven,
> NL]
> Linux: SCSI, Security          <garloff@suse.de>    [SuSE Nuernberg,
> DE]
>  (See mail header or public key servers for PGP2 and GPG public keys.)
> 


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Subject: [parisc-linux] 0.9.3 Audio on C110
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Hello,

First off I would like to give Kudos to everyone who worked on this project.
I cant believe the C110 is actually doing something useful again (and I
don't have to deal with HP's version of POSIX).  I cant believe that
everything including X and gnome, KDE etc are all working rather flawlessly!

I do have one problem still.  I am at a loss for the Audio.  It would appear
by looking back in the threads that the audio is working on this model
9000/C110.  But I don't know how to go about getting it working.  Do I need
to rebuild the kernel?  Is there a module that can be loaded for it?  Or are
my /dev screwed up for audio/dsp?

				-Thanks!
				  Mike




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Subject: Re: [parisc-linux] 0.9.3 Audio on C110
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On Fri, Jun 21, 2002 at 09:59:06AM -0400, Michael Audette wrote:
> Hello,
> 
> First off I would like to give Kudos to everyone who worked on this project.
> I cant believe the C110 is actually doing something useful again (and I
> don't have to deal with HP's version of POSIX).  I cant believe that
> everything including X and gnome, KDE etc are all working rather flawlessly!
> 
> I do have one problem still.  I am at a loss for the Audio.  It would appear
> by looking back in the threads that the audio is working on this model
> 9000/C110.  But I don't know how to go about getting it working.  Do I need
> to rebuild the kernel?  Is there a module that can be loaded for it?  Or are
> my /dev screwed up for audio/dsp?

Works fine for me: only playback though - no recording :(

monk:~# ls -l /dev/dsp
crw-rw----    1 root     audio     14,   3 Nov 15  2001 /dev/dsp

The driver is called "harmony" - I have mine hard compiled into the kernel.

patrick




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From: Matthieu Delahaye <delahaym@esiee.fr>
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Subject: Re: [parisc-linux] 0.9.3 Audio on C110
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Patrick Caulfield wrote:

>[...]
>Works fine for me: only playback though - no recording :(
>
>monk:~# ls -l /dev/dsp
>crw-rw----    1 root     audio     14,   3 Nov 15  2001 /dev/dsp
>
>The driver is called "harmony" - I have mine hard compiled into the kernel.
>
>patrick
>
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
Does anybody knows if it is specific to C110/C100 (Raven) or is it the 
case for others?
Personnaly, I have recording support on my B132 and 712.

Matthieu Delahaye




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Subject: [parisc-linux] my find... (and a plea for advice)
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The other day, I stumbled on to an HP 745 machine.  Figuring I could 
do "something" with it, and having the urge to dive into playing with a RISC 
box(and another linux machine), I stumbled on to your community here.
The box itself is the prod # A2638B (if that means anything to anyone)
I found the pdf manual for the 700i series on hp.com, and deduced that it is 
the 745.  Here's the sticky part:
1. I conected the vga connector to several different monitors and booted the 
machine - no display.
2. I tried running a serial cable to it and hyperterm-ing in to it to at least 
see if I get a login... nothing.
The lights blink as its booting, and it appears to complete an entire boot 
process, then idle with the OS light on.  I believe it still has the original 
HP-UX on it.
3. I don't have a HP-HIL keyboard, nor an AUI adapter to put it on my RJ45 
switch.  
4. There is no floppy or CD-ROM drive in this machine, and I do not have a 
SCSI CD drive.

I have scoured the lists looking for info on how I might crack into this 
thing.  I dont mind picking up the AUI adapter, but I want to make sure I can 
get into the machine (and if it works).  Any advice regarding getting the 
display to work, or any leads on an HIL keyboard would be much appreciated.

Thanks!

-- 
Ted Love







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Subject: Re: [parisc-linux] 0.9.3 Audio on C110
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Matthieu Delahaye wrote:
> Does anybody knows if it is specific to C110/C100 (Raven) or is it the 
> case for others?
> Personnaly, I have recording support on my B132 and 712.

"harmony" is integrated into the LASI chip.
AFAICT, all the workstations vintage 712 to C360 have LASI.

	http://hwdb.parisc-linux.org/view.php3?type=driver&name=Harmony

grant



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> The other day, I stumbled on to an HP 745 machine.  Figuring I could 
> do "something" with it, and having the urge to dive into playing with a RISC 
> box(and another linux machine), I stumbled on to your community here.

What types of monitors have you connected to the box?
A good multi-sync should do... anything that can handle 1280x1024.

Without an HIL keyboard you are still in trouble since you can't
set the console to serial. 

And if you can't access the console you can't change the primary
boot path to LAN.

c.




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} > The other day, I stumbled on to an HP 745 machine.  Figuring I could 
} > do "something" with it, and having the urge to dive into playing with a RISC 
} > box(and another linux machine), I stumbled on to your community here.
} 
} What types of monitors have you connected to the box?
} A good multi-sync should do... anything that can handle 1280x1024.

The 745s have a 4 switch DIP switch on the motherboard.  Switches 2 and
3 are used to set the video resolution.

Switch 2 | Switch 3  |    Video Mode
-------------------------------------------
  DOWN   |   DOWN    | 1024x768 @ 72 Hz
  DOWN   |    UP     | 1280x1024 @ 72 Hz
   UP    |   DOWN    | 1024x768 @ 60 Hz
   UP    |    UP     |  Will Not Boot


-- 

   E Frank Ball                frankb@efball.com



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Hi palinuxer,

On Fri, 21 Jun 2002, Patrick Caulfield wrote:

> The driver is called "harmony" - I have mine hard compiled into the kernel.
>
> patrick

This reminds me of something I wanted to ask for a long time:

It seems that the harmony mixer is not perfectly supported;
Volume doesn't work, and there are just two things I can change,
IGain and OGain (latter effects the Output volume).
There is not even a way to change the balance etc.
Moreover most applications expect at least "volume" to be working,
so this is kind of annoying. Despite this it's working flawlessly!

So to the question: is there any work planned in improving harmony
support (in the near future) ? E.g. an enhanced mixer support and
support for recording?

greetings max





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Hi, I have some problems in compiling the latest kernels;

I tried pa35 (32bit), which caused unaligned address traps during boot
(IIRC it was e2fsck).
I rebooted with pa20, which worked (but has the known IO problems,
i.e. copying a full CD to hard disk with lock up the machine).
Later I tried compiling pa39 (32bit), but depmod reported
"unhandled relocation of type 74" for each function in each module.
Compiling 64bit with the (quite old) unofficial debs worked however,
but there are some "unresolved symbols" in a few (=4) modules,
each time the symbol is "__xchg64". I'm quite sure that in former times
all modules worked. Since these modules are not important to me
(smbfs and some ipv6 netfilter modules) there is no hurry ;)

I always compiled for the "PA8000" processor type; I know there were some
issues with the PA8000 optimization and modutils, but remeber that these
were fixed. Is this a regression ?

So far I'm running a 64bit kernel (because it's the only way it works),
but I want to stick to a 32bit kernel, because they may be more stable.

However I didn't try selecting any other CPU type (was just too lazy);
though there is a good chance that this would solve the modules problem.

BTW, I'm running debian/sid, updated yesterday.

One more question: is it a good idea to compile with gcc-3.1,
e.g. make CC=gcc-3.1 HOSTCC=gcc-3.1 vmlinux ?
Does gcc-3.1 generate better code (better optimized, fewer bugs?) or
should I stick to gcc-3.0 since this is the "recommended" compiler
(or at least the one the kernel developers use and know)

thanks in advance, max
--
I am the "ILOVEGNU" signature virus. Just copy me to your signature.
This email was infected under the terms of the GNU General Public License.








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Subject: Re: [parisc-linux] PA8000 modutils problems
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> Hi, I have some problems in compiling the latest kernels;
> 
> I tried pa35 (32bit), which caused unaligned address traps during boot
> (IIRC it was e2fsck).
> I rebooted with pa20, which worked (but has the known IO problems,
> i.e. copying a full CD to hard disk with lock up the machine).
> Later I tried compiling pa39 (32bit), but depmod reported
> "unhandled relocation of type 74" for each function in each module.
> Compiling 64bit with the (quite old) unofficial debs worked however,
> but there are some "unresolved symbols" in a few (=4) modules,
> each time the symbol is "__xchg64". I'm quite sure that in former times
> all modules worked. Since these modules are not important to me
> (smbfs and some ipv6 netfilter modules) there is no hurry ;)

Depmod does it own limited handling of relocations.  You probably
need to stick with the recommended compiler (debian 3.0.4 and binutils)
to be compatible with the relocation capability of depmod.  The
alignment issues also are likely a result of using 3.1.  BIGGEST_ALIGNMENT
was changed last Feb. to 128 bits to allow struct alignment suitable
for the ldcw semaphore insn.  I believe the deb version of gcc was
patched to do this as well.

> 
> I always compiled for the "PA8000" processor type; I know there were some
> issues with the PA8000 optimization and modutils, but remeber that these
> were fixed. Is this a regression ?

This only affects the scheduling of insns.  As far as I am aware,
there are no scheduling related bugs for any of the scheduling
models.  PA8000 will be the default for PA2.0 machines in 3.2.

Now, there is a known issue with PA2.0 code generation.  It affects
floating point loads from symbolic memory locations using the 32-bit
elf tools.  As a result, the code generation default is still PA1.1.
I'm planning to change this to PA2.0 for PA2.0 machines when the
assembler bug is fixed.

> One more question: is it a good idea to compile with gcc-3.1,
> e.g. make CC=gcc-3.1 HOSTCC=gcc-3.1 vmlinux ?
> Does gcc-3.1 generate better code (better optimized, fewer bugs?) or
> should I stick to gcc-3.0 since this is the "recommended" compiler
> (or at least the one the kernel developers use and know)

I would use the recommended compiler for the kernel.  It's difficult
to compare the debian patched versions with the vanilla FSF versions.
In general, 3.1 has fewer bugs than 3.0.  However, I doubt that it
is significantly better optimized.  For C++ apps, I would probably
go with a 3.2 snap because it has dw2 eh.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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On Fri, 21 Jun 2002, John David Anglin wrote:

> > I tried pa35 (32bit), which caused unaligned address traps during boot
> > (IIRC it was e2fsck).
> > I rebooted with pa20, which worked (but has the known IO problems,
> > i.e. copying a full CD to hard disk with lock up the machine).
> > Later I tried compiling pa39 (32bit), but depmod reported
> > "unhandled relocation of type 74" for each function in each module.
> > Compiling 64bit with the (quite old) unofficial debs worked however,
> > but there are some "unresolved symbols" in a few (=4) modules,
> > each time the symbol is "__xchg64". I'm quite sure that in former times
> > all modules worked. Since these modules are not important to me
> > (smbfs and some ipv6 netfilter modules) there is no hurry ;)

I think the unsresolve symbols are just simple programmers bugs which
will 'autmagically' be fixed in later kernels. At least this happened to
me quite a few times (on different platforms, different kernels & modules)

> Depmod does it own limited handling of relocations.  You probably
> need to stick with the recommended compiler (debian 3.0.4 and binutils)
> to be compatible with the relocation capability of depmod.  The
> alignment issues also are likely a result of using 3.1.  BIGGEST_ALIGNMENT
> was changed last Feb. to 128 bits to allow struct alignment suitable
> for the ldcw semaphore insn.  I believe the deb version of gcc was
> patched to do this as well.

I forgot to mention that I used 'gcc' (thus 3.0) to compile -pa39
(32bit, and 'hppa64-gcc' for 64bit). I'm quite sure about that.

However I'm have to agree that I used gcc-3.1 for the not
correctly working -pa35 (unaligned address). That's the reason why
I chose to use the default gcc for compiling -pa39!

Therefore the depmod issue is IMHO due to some other error ...

> Now, there is a known issue with PA2.0 code generation.  It affects
> floating point loads from symbolic memory locations using the 32-bit
> elf tools.  As a result, the code generation default is still PA1.1.
> I'm planning to change this to PA2.0 for PA2.0 machines when the
> assembler bug is fixed.

So what is the point in choosing the PA8000 anyway ? ;)
Oh, I forgot; to be able to select 64bit kernel!

Thanks alot for the quick answer!

Greeting max

-- 
I am the "ILOVEGNU" signature virus. Just copy me to your signature.
This email was infected under the terms of the GNU General Public License.








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Dear Max,

i cannot speak to the mixer and gain issues, but i can offer something
with regard to recording:  adding lines:

	case SNDCTL_DSP_SYNC:
	return 0;

to the ioctl swith statment in drivers/sound/harmony.c (line 727 or there
abouts) will allow you to use sox to record (i have been able to
succesfully record using sox after adding this change).

best regards,
james w. mcclain

 On Fri, 21 Jun
2002, M. Grabert wrote:

> Hi palinuxer,
>
> On Fri, 21 Jun 2002, Patrick Caulfield wrote:
>
> > The driver is called "harmony" - I have mine hard compiled into the kernel.
> >
> > patrick
>
> This reminds me of something I wanted to ask for a long time:
>
> It seems that the harmony mixer is not perfectly supported;
> Volume doesn't work, and there are just two things I can change,
> IGain and OGain (latter effects the Output volume).
> There is not even a way to change the balance etc.
> Moreover most applications expect at least "volume" to be working,
> so this is kind of annoying. Despite this it's working flawlessly!
>
> So to the question: is there any work planned in improving harmony
> support (in the near future) ? E.g. an enhanced mixer support and
> support for recording?
>
> greetings max
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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> So what is the point in choosing the PA8000 anyway ? ;)

It affects the ordering of insns but not the insn set (PA1.0, 1.1
or 2.0).  The PA8000 ordering should work better on a PA8000
or later processor.  The ordering takes into account the number
of insn pipelines, the timing of insns, etc.  On older PA1.1
machines, the PA7100LC model should be better.

PA8000 machines all use the PA2.0 architecture but are backwards
compatible with PA1.1, etc.  There is still more work to be done
in the compiler to take full advantage of the PA2.0 architecture,
particularly in 32-bit mode.  For example, we are not taking
advantage of the fact that the general registers are actually 64
bits wide.  Thus, long long support could be better.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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"M. Grabert" wrote:
> Later I tried compiling pa39 (32bit), but depmod reported
> "unhandled relocation of type 74" for each function in each module.

This is a known bug in the modutils package.

Richard Hirst had created an older (hacked 2.4.13) version of
modutils that can deal with relocation type 74. See
	ftp://ftp.parisc-linux.org/unofficial-debs/

and grab modutils-2.4.13-3.1rgh*


> Compiling 64bit with the (quite old) unofficial debs worked however,
> but there are some "unresolved symbols" in a few (=4) modules,
> each time the symbol is "__xchg64".

grundler <506>fgrep -n __xchg64 arch/parisc/kernel/parisc_ksyms.c
77:EXPORT_SYMBOL(__xchg64);

Something else is wrong. you are building from CVS right?
Try "make distclean" and rebuild the 64-bit vmlinux/ from scratch.


> I'm quite sure that in former times
> all modules worked. Since these modules are not important to me
> (smbfs and some ipv6 netfilter modules) there is no hurry ;)

I'm pretty sure smbfs was recently built/tested.
It's been a while since I've heard anything about ipv6 on parisc.

> So far I'm running a 64bit kernel (because it's the only way it works),
> but I want to stick to a 32bit kernel, because they may be more stable.

I would agree. But you need to use PA11 arch for now.
In general, I think the 64-bit kernel isn't too bad though.

grant



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On Saturday 22 June 2002 02:11, James Mcclain wrote:
> i cannot speak to the mixer and gain issues, but i can offer something
> with regard to recording:  adding lines:
>
> 	case SNDCTL_DSP_SYNC:
> 	return 0;
>
> to the ioctl swith statment in drivers/sound/harmony.c (line 727 or there
> abouts) will allow you to use sox to record (i have been able to
> succesfully record using sox after adding this change).

FYI, I've added this patch to the 2.4.18-pa40 CVS kernel.

Helge



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Subject: [parisc-linux] 2.4.18-pa40, added SNDCTL_DSP_SYNC ioctl to harmony driver
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On Saturday 22 June 2002 11:05, Helge Deller wrote:
> CVSROOT:	/var/cvs
> Module name:	linux
> Changes by:	deller	02/06/22 03:05:59
>
> Modified files:
> 	.              : Makefile
> 	drivers/sound  : harmony.c
>
> Log message:
> 2.4.18-pa40
> - added SNDCTL_DSP_SYNC to harmony driver (allows recording with sox)
> This patch was contributed by James Mcclain <jmccla3@gl.umbc.edu>
> http://lists.parisc-linux.org/pipermail/parisc-linux/2002-June/016688.html

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Index: Makefile
===================================================================
RCS file: /var/cvs/linux/Makefile,v
retrieving revision 1.310
diff -u -p -r1.310 Makefile
--- Makefile	2002/06/19 06:59:25	1.310
+++ Makefile	2002/06/22 09:02:46
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 4
 SUBLEVEL = 18
-EXTRAVERSION = -pa39
+EXTRAVERSION = -pa40
 
 KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
 
Index: drivers/sound/harmony.c
===================================================================
RCS file: /var/cvs/linux/drivers/sound/harmony.c,v
retrieving revision 1.27
diff -u -p -r1.27 harmony.c
--- drivers/sound/harmony.c	2002/03/26 20:59:01	1.27
+++ drivers/sound/harmony.c	2002/06/22 09:02:47
@@ -724,7 +724,11 @@ static int harmony_audio_ioctl(struct in
 		info.fragsize = HARMONY_BUF_SIZE;
                 info.bytes = info.fragments * info.fragsize;
 		return copy_to_user((void *)arg, &info, sizeof(info));
+	
+	case SNDCTL_DSP_SYNC:
+		return 0;
 	}
+	
 	return -EINVAL;
 }
 

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Hi Dave,

John David Anglin wrote:
> 
>>One more question: is it a good idea to compile with gcc-3.1,
>>e.g. make CC=gcc-3.1 HOSTCC=gcc-3.1 vmlinux ?
>>Does gcc-3.1 generate better code (better optimized, fewer bugs?) or
>>should I stick to gcc-3.0 since this is the "recommended" compiler
>>(or at least the one the kernel developers use and know)
> 
Some weeks ago I also try to compile the kernel (32bits) with gcc-3.1 
(cvs) and eventhought it boots fine there was a problem
with network connections (as well telnet which uses inetd as well as ssh
which using its own sshd; this confirm the problem of compilation in 
network interface). Is this problem solved now?
If not I will ask to Bruno to test its last lkcd code (kdb not yet 
working) to continue to investigate this problem.

Joel






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Subject: Re: [parisc-linux] PA8000 modutils problems
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> Some weeks ago I also try to compile the kernel (32bits) with gcc-3.1 
> (cvs) and eventhought it boots fine there was a problem
> with network connections (as well telnet which uses inetd as well as ssh
> which using its own sshd; this confirm the problem of compilation in 
> network interface). Is this problem solved now?

Not that I am aware of.  Maybe some of the debian folks have tried looking
into it as they were talking about moving to a newer compiler release.  
If it is a compiler problem, I would need a test case showing the
miscompilation and preferably a filed PR.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Dave,

The problem mentionned in this mail:
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-April/016119.html

about gcc-3.2 is the same with gcc-3.1.

Dono about some follow-up?

Thanks for advise,
	Joel

PS:
What means PR (how to fil it)?
And what means insn?

John David Anglin wrote:
>>Some weeks ago I also try to compile the kernel (32bits) with gcc-3.1 
>>(cvs) and eventhought it boots fine there was a problem
>>with network connections (as well telnet which uses inetd as well as ssh
>>which using its own sshd; this confirm the problem of compilation in 
>>network interface). Is this problem solved now?
> 
> 
> Not that I am aware of.  Maybe some of the debian folks have tried looking
> into it as they were talking about moving to a newer compiler release.  
> If it is a compiler problem, I would need a test case showing the
> miscompilation and preferably a filed PR.
> 
> Dave





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Hi Bruno,

Till some month ago I encounter a problem when I compile the kernel with 
gcc-3.2 or gcc-3.1. Those kernels boot well but as soon as you try a 
network connection (telnet or ssh) the system crash.

It is a problem in network kernel part but dono yet if it is IP stack or 
  interface problem.

As some month ago could you send me your last lkcd code so that I could 
try to locate the problem with at least gdb?

Thanks in advance for your help,
	Joel

 > Dave,
 >
 > The problem mentionned in this mail:
 > 
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-April/016119.html
 >
 > about gcc-3.2 is the same with gcc-3.1.
 >
 > Dono about some follow-up?
 >
 > Thanks for advise,
 > 	Joel
 >
 > PS:
 > What means PR (how to fil it)?
 > And what means insn?
 >
 > John David Anglin wrote:
 > >>Some weeks ago I also try to compile the kernel (32bits) with gcc-3.1
 > >>(cvs) and eventhought it boots fine there was a problem
 > >>with network connections (as well telnet which uses inetd as well 
as ssh
 > >>which using its own sshd; this confirm the problem of compilation in
 > >>network interface). Is this problem solved now?
 > >
 > >
 > > Not that I am aware of.  Maybe some of the debian folks have tried 
looking
 > > into it as they were talking about moving to a newer compiler 
release.
 > > If it is a compiler problem, I would need a test case showing the
 > > miscompilation and preferably a filed PR.
 > >
 > > Dave





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On Fri, 21 Jun 2002, Grant Grundler wrote:

> "M. Grabert" wrote:
> > Later I tried compiling pa39 (32bit), but depmod reported
> > "unhandled relocation of type 74" for each function in each module.
>
> This is a known bug in the modutils package.
>
> Richard Hirst had created an older (hacked 2.4.13) version of
> modutils that can deal with relocation type 74. See
> 	ftp://ftp.parisc-linux.org/unofficial-debs/
>
> and grab modutils-2.4.13-3.1rgh*

Thanks alot! I think I did that earlier, but after an apt-get upgrade
it might have been 'updated'. I set it to 'HOLD' (dselect) next time.

> > Compiling 64bit with the (quite old) unofficial debs worked however,
> > but there are some "unresolved symbols" in a few (=4) modules,
> > each time the symbol is "__xchg64".
>
> grundler <506>fgrep -n __xchg64 arch/parisc/kernel/parisc_ksyms.c
> 77:EXPORT_SYMBOL(__xchg64);
>
> Something else is wrong. you are building from CVS right?
> Try "make distclean" and rebuild the 64-bit vmlinux/ from scratch.

Yes, I always use the CVS trunk. I always have the CVS tree on
a different machine and do a CVS update on it (intel laptop with internet
connection, at work) and then copy the kernel to the parisc-linux machine
(no internet connection, at home). So I always have a fresh, clean CVS
kernel (with no old *.o files).

But I just did a 'make clean' when I decided to make a 64bit. I forgot
that it is actually a different architecture ... This might have caused
the problem!
Thanks for reminding!


greetings max

-- 
I am the "ILOVEGNU" signature virus. Just copy me to your signature.
This email was infected under the terms of the GNU General Public License.








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Gotcha!

Sorry, I hate to reply to my previous main, but I think it's important!

On Fri, 21 Jun 2002, M. Grabert wrote:

> Date: Fri, 21 Jun 2002 21:52:20 +0100 (IST)
> From: M. Grabert <xam@cs.ucc.ie>
> To: parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] PA8000 modutils problems
>
> Hi, I have some problems in compiling the latest kernels;

[... problem report ...]

Now the important part (the .signature of the post):

> thanks in advance, max
> --
> I am the "ILOVEGNU" signature virus. Just copy me to your signature.
> This email was infected under the terms of the GNU General Public License.

[...]

Well, I got a lot of really helpful responses from alot of nice people,
but unfortunately we have some issue here:

Some of the people who replied to my email didn't include the original
email (source code) as required by the GNU GPL or even didn't include the
copyleft reference in their replies!
The first point is probably not valid, since the original email is
probably referenced in the mail header and usually stored in the same mail
archive and thus can be easily accessed.
But the latter is IMHO a more severe thing: you definitely violated the
GNU GPL by this! (I think all of these people are listed in the CC: field)

Be careful that you won't get caught in this trap next time :)

BTW, I should have included the GNU GPL in my first email (and not only
mention/reference it), shouldn't I ?
Moreover is an email a valid soure code as described in the GNU GPL ?

greetings max

PS: I won't sue you because of this incident (neither now nor later) :)))
PPS: This is ment to be (at least) a half-serious email. Any useful
responses (under the terms of the GNU GPL) are highly welcome, especially
from laywers! ;)

-- 
I am the "ILOVEGNU" signature virus. Just copy me to your signature.
This email was infected under the terms of the GNU General Public License.








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> PPS: This is ment to be (at least) a half-serious email. Any useful
> responses (under the terms of the GNU GPL) are highly welcome, especially
> from laywers! ;)

The list is intended for for discussion of parisc-linux issues and not
the GNU GPL.  Contact RMS at the FSF if you want to discuss the GNU GPL.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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From: Matthieu Delahaye <delahaym@esiee.fr>
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Subject: Re: [parisc-linux] 0.9.3 Audio on C110
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Hi,

If nobody is already on it, I will plan to spend a lot of time on this 
mixer after my graduation next week.
If someone has feedback about strange behaviour like the one explained 
above please do not hesitate to contact me.

Regards,
Matthieu


M. Grabert wrote:

>Hi palinuxer,
>
>On Fri, 21 Jun 2002, Patrick Caulfield wrote:
>
>>The driver is called "harmony" - I have mine hard compiled into the kernel.
>>
>>patrick
>>
>
>This reminds me of something I wanted to ask for a long time:
>
>It seems that the harmony mixer is not perfectly supported;
>Volume doesn't work, and there are just two things I can change,
>IGain and OGain (latter effects the Output volume).
>There is not even a way to change the balance etc.
>Moreover most applications expect at least "volume" to be working,
>so this is kind of annoying. Despite this it's working flawlessly!
>
>So to the question: is there any work planned in improving harmony
>support (in the near future) ? E.g. an enhanced mixer support and
>support for recording?
>
>greetings max
>
>
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>






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Are there any plans to support the AD whatever that is in the J5k?  Is 
there documentation available?


-- 
A day without sunshine is like a day without orange juice.




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So I have a new (to me) C180 and nearly everything is hunky-dory. Huge grats
to all the kernel/debian hackers! I have a few questions, though.

When I insert a PCI card, I get the dreaded firmware halt. The serial number
on this box is low enough that it could have PCI bugs that I've read about
on the net. Is this still repairable? Can it be worked around in software/
firmware? (Firmware 5.2, FWIW) I'm assuming that not only is the original
warranty long expired, that it wouldn't have transferred anyways. I have
a request in to HP support, I was just curious if this has been
encountered by anyone here before/recently.

I apologize that this is not directly Linux-related. This seems to be the
most active group working on machines near this vintage, and I fear
HP may reject my request for support based on not running HP-UX. Thanks
for any input! (And thanks again for a smashing job on the arch port. I've
got sparc, mips, powerpc, and ia32 all lying around the house, and I must
say the hppa install was the cleanest yet.)

BTW-Probably a FAQ and not that I intend to run it any time soon, but
how mature is the 64-bit in 32-bit firmware configuration? Does it
require a slightly different toolchain, or does binutils-hppa build
32 and 64-bit without a hitch?

-- 
chris jantzen kb7rnl =->         __O
Insert witty comment here.     _`\<,_
http://www.maybe.net/         (*)/ (*)



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"M. Grabert" wrote:
...
> Be careful that you won't get caught in this trap next time :)

Sue me. I ignore .sigs unless they amuse me.

grant



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Jeremy Drake wrote:
> Are there any plans to support the AD whatever that is in the J5k?  Is 
> there documentation available?

yes and yes.

Randolph Chung (tausq@debian.org) had started hacking on this driver
since he also has a C3000. He hasn't had time to get it working
and should probably just post his "patch" to ftp.p-l.org in case
someone else wants to (try to) make it work.

I've posted documentation in April on this chip:
	gsyprf10.external.hp.com:/pub/grundler/AD1889.pdf

(from memory, it's there:
-r--r--r--    1 grundler users      124255 Apr 24 21:28 AD1889.pdf
)

grant



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Hi,
I'm trying to build tulip-diag.c from scyld.com and am getting the
following error msg:
gsyprf11:~# gcc -O tulip-diag.c -o tulip-diag
tulip-diag.c:58:20: sys/io.h: No such file or directory
tulip-diag.c:1347:24: warning: multi-line string literals are deprecated

On ia64, sys/io.h comes from
gsyprf3:~# dpkg -S sys/io.h
libc6.1-dev: /usr/include/sys/io.h

But we don't have the equivalent for parisc (hppa).
Ideas?

thanks,
grant



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In reference to a message from Jeremy Drake, dated Jun 23:
> Are there any plans to support the AD whatever that is in the J5k?  Is 
> there documentation available?

i've been working on it, quite slowly. the documentation available is a
bit scant.... the same chip is in the c3k.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/



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> I'm trying to build tulip-diag.c from scyld.com and am getting the
> following error msg:
> gsyprf11:~# gcc -O tulip-diag.c -o tulip-diag
> tulip-diag.c:58:20: sys/io.h: No such file or directory
> tulip-diag.c:1347:24: warning: multi-line string literals are deprecated
> 
> On ia64, sys/io.h comes from
> gsyprf3:~# dpkg -S sys/io.h
> libc6.1-dev: /usr/include/sys/io.h
> 
> But we don't have the equivalent for parisc (hppa).
> Ideas?

ISTR this has to do with the fact that we do not want to/cannot expose 
the {in,out}[bwl] primitives to userspace. Is the tulip-diag program
trying to write to port space directly?

FWIW we have the same problems with things like sane. 

ia64 seems to have some wrappers in glibc to do port io....

randolph



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Chris Jantzen wrote:
> When I insert a PCI card, I get the dreaded firmware halt. The serial number
> on this box is low enough that it could have PCI bugs that I've read about
> on the net. Is this still repairable?

theoretically, yes.

> Can it be worked around in software/firmware?

Definitely not.

> (Firmware 5.2, FWIW) I'm assuming that not only is the original
> warranty long expired, that it wouldn't have transferred anyways. I have
> a request in to HP support, I was just curious if this has been
> encountered by anyone here before/recently.

Yes.

> ...and I fear
> HP may reject my request for support based on not running HP-UX.

I don't think the HW support groups care unless they need to run
diags or something. In this case they don't.

grant



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roh wrote:
[...]
>i just played around with my machine and stated that setting the baudrate
>on the serial(rs232) to 57600(8n1) didnt work...
>using 9600baud works ok
[...]

 I have na my 710 certain inconvenience with serial ports too.
In kernel-source the initial baud_base is 727272/16 = 454545.
It works up to 19200.

By many tests I can set baud_rate beetwen 46000 and 570000.
In this range serials works, ( with errors in ppp connection, but works up
to 115200).

In 710 parallel and two serials are in WDC 16C552 with external freq gen
7.3728 Mhz
div 16 (i suppose). It gives 460800.

Now, with correct baud_base 460800 minicom works up to 115200,
pppd works with errors at the same baudrate.

Still don't work serial mouse with gpm and serial driver in X.


                                                        Robert Boehm

What is baud_base on ttyS?  ?, You can test it by:
setserial -a /dev/ttyS?







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Matthew Wilcox said:
> looks like out of date config.{sub,guess}.  as has been said elsewhere,
> the debian packages have been updated with these things, but maybe
> upstream hasn't.

Persons who feel the urge to build software locally rather than install
the lovely shiny Debian packages <plug /> would do well to at least
install the autotools-dev package.  Its purpose is to help developers
work around upstream sources that have out-of-date autoconf/libtool
helper files.

 autotools-dev: Update infrastructure for config.{guess,sub} files
 This package installs an up-to-date (from CVS) version of config.guess
 and config.sub, used by the automake and libtool packages.  It provides
 the canonical copy of those files for other packages as well.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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I've got HP9000 710 workstation without power supply. 
It's quite old machine, but I'd like set it up anyway. 
The problem is I've no idea how to connect any power supply to 
the motherboard  - I have not oryginal power supply. 
 
Anybody knows this standard - where's 12 V, where's 5V, GND etc. 
 
There are(on the motherboard) 2 connectors: 
first is 14 pins, second is 5 pins, and I suppose the bigger one 
is supply(maybe this small one is that too?).
The other question is for keyboard - what about using PS/2 
keyboard? 
 
Thanks a lot. 

onek 


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Hello list

I guess this is not the best place to ask, but I don't really know any 
other, so here is my question.

I'm planning to buy a second hand station at some point and have fun 
with Linux, but in the documentation process, I discovered some stations 
have problemw with PCI hardware.

The question is: which kind of PCI stuff is this? Regular, PC compatible 
cards, or HP specific?

If I remember correctly, various cards (PCI, ISA, AGP and so on) come 
with a firmware, that has to "match" the host computer. I know some OSes 
bypass this firmware and re-discover everything, others don't.

So the logical other way to ask the question is: is it possible to stick 
(fairly standard) ISA or PCI PC cards into an HP station and get them to 
work?

Relly sorry if this is a brain-dead question... :)


Thanks a lot
/Dantes




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On Tue, 2002-06-25 13:59:02 +0200, on on <665544@wp.pl>
wrote in message <3d185b06d7cf2@wp.pl>:

Hi "on on" (your parents seem ru be quite rude, aren't they?)

> The other question is for keyboard - what about using PS/2=20
> keyboard?=20

That should be fine.

MfG, JBG

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Subject: [parisc-linux] The compiler failed to link application, request for help
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Hello,

In trying to compile a utility here, I end up with a linker error:

$ gcc -w -o pvmtalk pvmtalk.o dom_x.o usleep.o 
-L/home/neuro/contrib/pvm3.3.11/lib/LINUX -lpvm3 -lgpvm3 
-L/usr/X11R6/lib ../xvertext.5.0/libXrot.a -lX11 -lm
/home/neuro/contrib/pvm3.3.11/lib/LINUX/libpvm3.a(lpvm.o): In function 
`pvmbeatask':
lpvm.o(.text+0x29cf): the use of `tmpnam' is dangerous, better use `mkstemp'
/usr/bin/ld: can not size stub section: Bad value
/usr/bin/ld: BFD 2.12.90.0.1 20020307 Debian/GNU Linux internal error, 
aborting at ../../bfd/elf32-hppa.c line 4038 in elf32_hppa_relocate_section

/usr/bin/ld: Please report this bug.

collect2: ld returned 1 exit status

We have gcc 3.0.4. The sources compile with just some warnings.

Can someone offer any suggestion as to what this means and how we can 
solve it?

Thanks.
-- 
     Rafael




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>>>>> "Randolph" == Randolph Chung <tausq@debian.org> writes:

>> I'm trying to build tulip-diag.c from scyld.com and am getting the
>> following error msg: gsyprf11:~# gcc -O tulip-diag.c -o tulip-diag
>> tulip-diag.c:58:20: sys/io.h: No such file or directory
>> tulip-diag.c:1347:24: warning: multi-line string literals are
>> deprecated
>> 
>> On ia64, sys/io.h comes from gsyprf3:~# dpkg -S sys/io.h
>> libc6.1-dev: /usr/include/sys/io.h
>> 
>> But we don't have the equivalent for parisc (hppa).  Ideas?

Randolph> ISTR this has to do with the fact that we do not want
Randolph> to/cannot expose the {in,out}[bwl] primitives to
Randolph> userspace. Is the tulip-diag program trying to write to port
Randolph> space directly?

You really should support it similar to what we do on
ia64. Ie. there's a Linux API here that allows you to map 'I/O' ports
and access them. Basing the code on what's in the ia64 glibc tree
would make it quite easy to get it up and running.

Jes



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> In trying to compile a utility here, I end up with a linker error:
> 
> $ gcc -w -o pvmtalk pvmtalk.o dom_x.o usleep.o 
> -L/home/neuro/contrib/pvm3.3.11/lib/LINUX -lpvm3 -lgpvm3 
> -L/usr/X11R6/lib ../xvertext.5.0/libXrot.a -lX11 -lm
> /home/neuro/contrib/pvm3.3.11/lib/LINUX/libpvm3.a(lpvm.o): In function 
> `pvmbeatask':
> lpvm.o(.text+0x29cf): the use of `tmpnam' is dangerous, better use `mkstemp'
> /usr/bin/ld: can not size stub section: Bad value
> /usr/bin/ld: BFD 2.12.90.0.1 20020307 Debian/GNU Linux internal error, 
> aborting at ../../bfd/elf32-hppa.c line 4038 in elf32_hppa_relocate_section
> 
> /usr/bin/ld: Please report this bug.
> 
> collect2: ld returned 1 exit status
> 
> We have gcc 3.0.4. The sources compile with just some warnings.
> 
> Can someone offer any suggestion as to what this means and how we can 
> solve it?

Usually, in this type of error, there is a message just prior to the "size
stub section" message about a symbol that is too far to perform the required
relocation.  It may help to compile your objects with optimization (e.g, -O2)
and/or use the "-ffunction-sections" compilation option.  There is a bug in
gcc 3.0.4 regarding the type of branch used for long calls under hppa-linux.
This is fixed in 3.2, so as a last resort you might try building 3.2
(I would also use the current cvs source for binutils) and building
your package with it.

It's possible that your problem isn't the long call issue.  In that
case, you can try to debug it yourself or submit a report to the
binutils list.  However, there no longer is an active maintainer for
hppa problems since Alan Modra moved to ibm.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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On Tue, Jun 25, 2002 at 12:18:31PM -0400, Jes Sorensen wrote:
> You really should support it similar to what we do on
> ia64. Ie. there's a Linux API here that allows you to map 'I/O' ports
> and access them. Basing the code on what's in the ia64 glibc tree
> would make it quite easy to get it up and running.

Um, we can't.  To do a port space access on Dino is:

acquire spin lock
write address to register
perform read or write access to a different register
release spin lock

i do hope you're not about to suggest emulating the proposed interface
by unmapping an address range and handling this in the fault handler

-- 
Revolutions do not require corporate support.



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eddantes@wanadoo.fr wrote:
> I'm planning to buy a second hand station at some point and have fun 
> with Linux, but in the documentation process, I discovered some stations 
> have problemw with PCI hardware.
> 
> The question is: which kind of PCI stuff is this? Regular, PC compatible 
> cards, or HP specific?

HP specific PCI Host bus adapter called Dino (aka GSCtoPCI).
See hwdb.parisc-linux.org to know which systems used it.
Some systems have been fixed with a newer rev of the Dino chip.
You can:
o update the PDC and install a PCI card
o boot parisc-linux
o or look for -0004 on the IO board

to figure out if the PCI is usable or not.
Only HP PCI graphics cards are permitted to be used in PCI
when a broken DINO rev is in the system. PDC revs higher
than about 5.x will enforce this.

Read comments in drivers/gsc/dino.c for more details.

grant



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Jes Sorensen wrote:
> You really should support it similar to what we do on
> ia64. Ie. there's a Linux API here that allows you to map 'I/O' ports
> and access them. Basing the code on what's in the ia64 glibc tree
> would make it quite easy to get it up and running.

I don't think so. For two reasons:
a) ia64 maps the "iobase" address to user space
b) the ia64 method is fixed for the architecture on how
   to generate "legacy" IO port cycles (using iobase).

parisc has two different methods (dino vs elroy) and dino only
supports poking the PCI HBA to generate IO Port cycles.
Or am I over looking something?

grant



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>>>>> "Matthew" == Matthew Wilcox <willy@debian.org> writes:

Matthew> On Tue, Jun 25, 2002 at 12:18:31PM -0400, Jes Sorensen wrote:
>> You really should support it similar to what we do on
>> ia64. Ie. there's a Linux API here that allows you to map 'I/O'
>> ports and access them. Basing the code on what's in the ia64 glibc
>> tree would make it quite easy to get it up and running.

Matthew> Um, we can't.  To do a port space access on Dino is:

Matthew> acquire spin lock write address to register perform read or
Matthew> write access to a different register release spin lock

Matthew> i do hope you're not about to suggest emulating the proposed
Matthew> interface by unmapping an address range and handling this in
Matthew> the fault handler

Well then make it a syscall and do it in the kernel - yes it's not
pretty but if the architecture requires it then thats the way to get
around it.

Jes



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>>>>> "Jes" == Jes Sorensen <jes@trained-monkey.org> writes:

Jes> Well then make it a syscall and do it in the kernel - yes it's
Jes> not pretty but if the architecture requires it then thats the way
Jes> to get around it.

Let me elaborate:

When the hardware is evil as you described in your mail, then it has
to go by the kernel. However if you have multiple cases, like Grant
mentioned Elroy vs Dino? then glibc can do a test the first time the
operation is done and cache that in userland for next time a request
is done - ie. when you're running on the type of hw that can do it in
userland then you don't have to go by the kernel except for the first
time.

Jes



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Grant Grundler wrote:

[snip]

> HP specific PCI Host bus adapter called Dino (aka GSCtoPCI).
> See hwdb.parisc-linux.org to know which systems used it.
> Some systems have been fixed with a newer rev of the Dino chip.
> You can:
> o update the PDC and install a PCI card
> o boot parisc-linux
> o or look for -0004 on the IO board
> 
> to figure out if the PCI is usable or not.
> Only HP PCI graphics cards are permitted to be used in PCI
> when a broken DINO rev is in the system. PDC revs higher
> than about 5.x will enforce this.
> 
> Read comments in drivers/gsc/dino.c for more details.
> 
> grant


OK, thanks a lot for the precisions. I'll keep those infos in RAM when 
hunting down the perfect station. I am kind of tempted by a C240 or a 
C360, the latter being not as common as the former (at least on eBay, 
any other shop / surplus / auction site welcome), both have Dino. Well, 
that sounds like a PDC update.

One quick question about it: on on of HP's servers, it says that PDC 
updates must be performed using a tape drive. 
(ftp://ftp.itrc.hp.com/firmware_patches/hp/cpu/PF_CC2X0063.txt for the 
C200/C240) I guess tapes are not so common anymore, especially in 
workstations, even if I probably have an old SCSI DDT-1 or something 
like that lying around somewhere in my 
pile-of-junk-salvaged-to-repare-dead-computers. Any other way to do it? 
CD-R? Small empty HDD partition?

And at last, what about compatibility of PCI cards between different 
architectures? I'm wondering about it due to the different PC and Apple 
cards from some manufacturers (Adaptec and ATI, for example). The bottom 
line being: if I stick a PC-world USB 2.0 or whatever card in a C240, 
any chance that it *may* work, even if it requires software tweaking and 
/ or hacking?

Thanks again!
/Dantes




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eddantes@wanadoo.fr wrote:
> One quick question about it: on on of HP's servers, it says that PDC 
> updates must be performed using a tape drive. 

Uhm...you can dd to a disk, boot from a network, or boot from a tape.
PDC updates are all available as lifimages.
lifimages are bootable from any media.

> CD-R? Small empty HDD partition?

both.

> And at last, what about compatibility of PCI cards between different 
> architectures? I'm wondering about it due to the different PC and Apple 
> cards from some manufacturers (Adaptec and ATI, for example). The bottom 
> line being: if I stick a PC-world USB 2.0 or whatever card in a C240, 
> any chance that it *may* work, even if it requires software tweaking and 
> / or hacking?

likely, but alot of things will "just work".
gfx are the least likely to work.

grant



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Hi!

I'm still using rsync, but currently I constantly get the famous
connection reset by peer...

Is rsyncd reaped off /etc/inetd.conf again? Or did I miss something?
However, the last time I had a successful access was at june 19, 2002,
18:35:01 CEST (=3D 16:00:01 UTC).

When will rsync be available again?

MfG, JBG

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Hi all,

To try to investigate the network problem with compiling kernel with gcc-3.2 on
hppa, I cvs update gcc and binutils this morning. Then build toolchain and
finally make dep ; make vmlinux but it failled with following message:

make[1]: Entering directory
`/Develop/parisc-linux/src/linux-2.4.18-pa40/arch/parisc/kernel'
gcc -D__KERNEL__ -I/Develop/parisc-linux/src/linux-2.4.18-pa40/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing
-fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1
-mschedule=7100   -DKBUILD_BASENAME=cache  -c -o cache.o cache.c
gcc -D__ASSEMBLY__ -traditional -D__KERNEL__
-I/Develop/parisc-linux/src/linux-2.4.18-pa40/include  -c -o pacache.o pacache.S
In file included from pacache.S:44:
/Develop/parisc-linux/src/linux-2.4.18-pa40/include/asm/cache.h:9: 1/config.h:
No such file or directory
make[1]: *** [pacache.o] Error 1
make[1]: Leaving directory
`/Develop/parisc-linux/src/linux-2.4.18-pa40/arch/parisc/kernel'
make: *** [_dir_arch/parisc/kernel] Error 2

?? "1/config.h"
    ??

Any idea?

Thanks in advance,
    Joel

PS1: the same sources (2.4.18-pa40) compile and run fine when compile natively
with gcc-3.0.4 (last hppa.dpkg).

PS2: glibc used to build toolchain was based on glibc_2.2.5-4 (+ patch)


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On Wed, Jun 26, 2002 at 03:43:46PM +0200, joel.soete@freebel.net wrote:
> Quoting Matthew Wilcox <willy@debian.org>:
> > it's probably less work to teach XFree86 how to talk to your gfx card
> > than it is to get the HPUX X server to run on Linux.
> 
> I would prefer also but is there any documentation about this interface?

i meant that it's probably less work to reverse-engineer the interface
and implement it in XFree86 than it is to get the HPUX X server working.

-- 
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Quoting Matthew Wilcox <willy@debian.org>:

> On Tue, Jun 18, 2002 at 11:05:59AM +0200, joel.soete@freebel.net wrote:
> > Quoting Matt Taggart <taggart@carmen.fc.hp.com>:
> > > The Color Recovery extension is only available in the HP-UX Xserver.
> No
> > > one 
> > > has been able to run the HP-UX Xserver on palinux yet.
> > > 
> > 
> > Any idea howto:
> > 1) install
> > 2) configure
> > 
> > I would try something to make my b2000 internel fxe running X.
> 
> it's probably less work to teach XFree86 how to talk to your gfx card
> than it is to get the HPUX X server to run on Linux.

I would prefer also but is there any documentation about this interface?

> 
> -- 
> Revolutions do not require corporate support.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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joel.soete@freebel.net wrote:
> In file included from pacache.S:44:
> /Develop/parisc-linux/src/linux-2.4.18-pa40/include/asm/cache.h:9: 1/config.h
>   :
> No such file or directory

The offending line is:
      8 #include <linux/config.h>

I'll assume "linux" being #define'd to 1.
gcc predefines perhaps?

grant



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> joel.soete@freebel.net wrote:
> > In file included from pacache.S:44:
> > /Develop/parisc-linux/src/linux-2.4.18-pa40/include/asm/cache.h:9: 1/config.h
> >   :
> > No such file or directory
> 
> The offending line is:
>       8 #include <linux/config.h>
> 
> I'll assume "linux" being #define'd to 1.
> gcc predefines perhaps?

Yes, the predefine is standard and is present in gcc 3.0.4, etc.  You can
see macro defines using the "-dM -E" option.

However, the macro should not be expanded inside <> or "".  Joel, can you
file a PR <http://gcc.gnu.org/cgi-bin/gnatsweb.pl>?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Hello PARISC hackers !

I have problems in the device probing on the E55, and I need some
hints here. I am at the very starting point of the SCSI driver
development, and other (Rayn) will also need this for MUX (serial),
etc....

The E55 is a machine of the type "SYSTEM MAP TYPE".
I instrumented the code to read out the values and elements at the
inventory probing. I will append the log of my "debug helps", they
are quite self explaining.

The `walk_central_bus()' calls seems to do correct work. It finds the 
basic elements on my E55:

	On the "56" the bus converter
	On "62" and "63" components on the system (main) board
	- "62" is the CPU, "63" the Memory

	The search was started at the "60".

My problem now. The `walk_lower_bus()' under the device "56" cannot
find any further devices. Seen on PDC or HP-UX, under "56/52" the
SCSI controller is present, further the parallel interface and the 
serial MUX also should be found.

Do we use the wrong search address here, taken from io_io_low of
the `struct bc_module'. Do we access it in a wrong way ?
Is THIS structure documented in any of the PARISC documents, other-
wise, where does this structure come from ?

I hope you have some hints here ...

Best regards
Christoph P.

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Problem find devices on the E55 I/O interfaces
Date: Wed, 26 Jun 2002 16:09:41 -0600
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Christoph Plattner wrote:
> Do we use the wrong search address here, taken from io_io_low of
> the `struct bc_module'. Do we access it in a wrong way ?
> Is THIS structure documented in any of the PARISC documents, other-
> wise, where does this structure come from ?

Ryan Bradetich has a pretty good handle on how to walk bus converters.
I expect the bus converter register layout to be documented in
the PA IO ACD (Arch Control Document). Sorry - I don't have a URL
handy for the IO ACD.

grant



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: [parisc-linux] Problem find devices on the E55 I/O interfaces! -- here the log !
Date: Thu, 27 Jun 2002 00:12:00 +0200
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This is a multi-part message in MIME format.
--------------3AC8D7198F72B65AB646159B
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Sorry I forgot the boot log !

(kernel CVS version of the last day)

------------------------------------------------------------------------------
   PDC - Processor Dependent Code - Version   2.0
   (c) Copyright 1990-1993, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------
   64 MB of memory configured and tested.
   Primary boot path:    56/52.6   (dec)
   Alternate boot path:  56/52.0   (dec)

------- Main Menu
-------------------------------------------------------------

        Command                       Description
        -------                       -----------

        BOot [PRI|ALT|<path>]         Boot from specified path
        PAth [PRI|ALT] [<path>]       Display or modify a path
        SEArch [DIsplay|IPL] [<path>] Search for boot devices

        COnfiguration menu            Displays or sets boot values
        INformation menu              Displays hardware information
        SERvice menu                  Displays service commands

        DIsplay                       Redisplay the current menu
        HElp [<menu>|<command>]       Display help for menu or command
        RESET                         Restart the system
-------
Main Menu: Enter command or menu > bo 60/6.0
Interact with IPL (Y or N)?> n

Booting... 
Network Station Address 080009-96d4f6

Boot IO Dependent Code (IODC) revision 8


HARD Booted.
palo ipl 0.99 root@unicum.pladom.at Sat Apr  6 19:47:13 CEST 2002

Boot image contains:
    0/vmlinux32 3071708 bytes @ 0x8000

Command line for kernel: 'HOME=/ TERM=linux root=/dev/nfs console=ttyB0
ip=bootp palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing
32-bit kernelELF32 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 1638036 mediaptr 0x1000
Segment 1 load 00290000 size 257752 mediaptr 0x191000
Segment 2 load 002d0000 size 385024 mediaptr 0x1d0000
Segment 3 load 00330000 size 32768 mediaptr 0x22e000
Segment 4 load 00357714 size 87056 mediaptr 0x236714
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.18-pa41 (root@unicum.pladom.at) (gcc version 3.0
20010315 (prerelease)) #38 Wed Jun 26 23:32:02 CEST 2002
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00004831 00000481 00000000 00000000 44c7f21c 100000f0 00000004
00000072 00000072
vers  0000000b
model 9000/856
Total Memory: 64 Mb
pagetable_init
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ TERM=linux root=/dev/nfs console=ttyB0
ip=bootp palo_kernel=0/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 95.84 BogoMIPS
Memory: 61936k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Searching for devices...
do_device_inventory: SYSTEM MAP TYPE
----     system_map_inventory: calling pdc_system_map_find_mods()
----     system_map_inventory: -- returned: mod=60, addr=0xf0100000
------ alloc_pa_dev: entry
-------------------------- find_parisc_device: entry, mod=60
-------------------------- find_parisc_device:   bc[0]=-1
-------------------------- find_parisc_device:   bc[1]=-1
-------------------------- find_parisc_device:   bc[2]=-1
-------------------------- find_parisc_device:   bc[3]=-1
-------------------------- find_parisc_device:   bc[4]=-1
-------------------------- find_parisc_device:   bc[5]=-1
----     system_map_inventory: additional address is 0x00000001
----     system_map_inventory: calling pdc_system_map_find_mods()
----     system_map_inventory: -- returned: mod=6, addr=0xf0107000
------ alloc_pa_dev: entry
-------------------------- find_parisc_device: entry, mod=6
-------------------------- find_parisc_device:   bc[0]=-1
-------------------------- find_parisc_device:   bc[1]=-1
-------------------------- find_parisc_device:   bc[2]=-1
-------------------------- find_parisc_device:   bc[3]=-1
-------------------------- find_parisc_device:   bc[4]=-1
-------------------------- find_parisc_device:   bc[5]=60
----     system_map_inventory: additional address not defined
----     system_map_inventory: calling pdc_system_map_find_mods()
----     system_map_inventory: -- returned ERROR
-- walk_central_bus: entry
---- walk_native_bus: entry
---- walk_native_bus:    testing hpa=0xfff80000, i=0
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff81000, i=1
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff82000, i=2
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff83000, i=3
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff84000, i=4
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff85000, i=5
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff86000, i=6
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff87000, i=7
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff88000, i=8
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff89000, i=9
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff8a000, i=10
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff8b000, i=11
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff8c000, i=12
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff8d000, i=13
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff8e000, i=14
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff8f000, i=15
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff90000, i=16
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff91000, i=17
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff92000, i=18
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff93000, i=19
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff94000, i=20
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff95000, i=21
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff96000, i=22
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff97000, i=23
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff98000, i=24
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff99000, i=25
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff9a000, i=26
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff9b000, i=27
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff9c000, i=28
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff9d000, i=29
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff9e000, i=30
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff9f000, i=31
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffa0000, i=32
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffa1000, i=33
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffa2000, i=34
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffa3000, i=35
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffa4000, i=36
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffa5000, i=37
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffa6000, i=38
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffa7000, i=39
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffa8000, i=40
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffa9000, i=41
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffaa000, i=42
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffab000, i=43
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffac000, i=44
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffad000, i=45
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffae000, i=46
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffaf000, i=47
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffb0000, i=48
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffb1000, i=49
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffb2000, i=50
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffb3000, i=51
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffb4000, i=52
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffb5000, i=53
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffb6000, i=54
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffb7000, i=55
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffb8000, i=56
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
-------------------------- find_parisc_device: entry, mod=56
-------------------------- find_parisc_device:   bc[0]=-1
-------------------------- find_parisc_device:   bc[1]=-1
-------------------------- find_parisc_device:   bc[2]=-1
-------------------------- find_parisc_device:   bc[3]=-1
-------------------------- find_parisc_device:   bc[4]=-1
-------------------------- find_parisc_device:   bc[5]=-1
-- walk_lower_bus: entry
-- walk_lower_bus: dev: hpa=0xfffb8000, io_io_low=0xfff00000,
io_io_high=0xfff80000
-- walk_lower_bus:   call again walk_native_bus()
---- walk_native_bus: entry
---- walk_native_bus:    testing hpa=0xfff00000, i=0
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff01000, i=1
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff02000, i=2
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff03000, i=3
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff04000, i=4
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff05000, i=5
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff06000, i=6
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff07000, i=7
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff08000, i=8
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff09000, i=9
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff0a000, i=10
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff0b000, i=11
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff0c000, i=12
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff0d000, i=13
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff0e000, i=14
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff0f000, i=15
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff10000, i=16
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff11000, i=17
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff12000, i=18
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff13000, i=19
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff14000, i=20
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff15000, i=21
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff16000, i=22
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff17000, i=23
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff18000, i=24
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff19000, i=25
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff1a000, i=26
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff1b000, i=27
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff1c000, i=28
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff1d000, i=29
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff1e000, i=30
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff1f000, i=31
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff20000, i=32
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff21000, i=33
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff22000, i=34
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff23000, i=35
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff24000, i=36
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff25000, i=37
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff26000, i=38
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff27000, i=39
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff28000, i=40
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff29000, i=41
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff2a000, i=42
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff2b000, i=43
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff2c000, i=44
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff2d000, i=45
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff2e000, i=46
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff2f000, i=47
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff30000, i=48
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff31000, i=49
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff32000, i=50
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff33000, i=51
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff34000, i=52
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff35000, i=53
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff36000, i=54
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff37000, i=55
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff38000, i=56
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff39000, i=57
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff3a000, i=58
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff3b000, i=59
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff3c000, i=60
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff3d000, i=61
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff3e000, i=62
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfff3f000, i=63
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffb9000, i=57
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffba000, i=58
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffbb000, i=59
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffbc000, i=60
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffbd000, i=61
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
------ alloc_pa_dev:  -- pdc_iodc_read() error -4!
---- walk_native_bus:    ** error in alloc_pa_dev()
---- walk_native_bus:    testing hpa=0xfffbe000, i=62
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
-------------------------- find_parisc_device: entry, mod=62
-------------------------- find_parisc_device:   bc[0]=-1
-------------------------- find_parisc_device:   bc[1]=-1
-------------------------- find_parisc_device:   bc[2]=-1
-------------------------- find_parisc_device:   bc[3]=-1
-------------------------- find_parisc_device:   bc[4]=-1
-------------------------- find_parisc_device:   bc[5]=-1
-- walk_lower_bus: entry
-- walk_lower_bus:   return without processing
---- walk_native_bus:    testing hpa=0xfffbf000, i=63
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
-------------------------- find_parisc_device: entry, mod=63
-------------------------- find_parisc_device:   bc[0]=-1
-------------------------- find_parisc_device:   bc[1]=-1
-------------------------- find_parisc_device:   bc[2]=-1
-------------------------- find_parisc_device:   bc[3]=-1
-------------------------- find_parisc_device:   bc[4]=-1
-------------------------- find_parisc_device:   bc[5]=-1
-- walk_lower_bus: entry
-- walk_lower_bus:   return without processing
Found devices:
1. Java BC GSC+ Port (7) at 0xfffb8000 [56], versions 0x503, 0x0, 0xc
2. WB-96 Core BA (11) at 0xf0100000 [60], versions 0x11, 0x1, 0x81, 
additional addresses: 0xf010c000 
3. WB-96 Core LAN (802.3) (10) at 0xf0107000 [60/6], versions 0x11, 0x1,
0x8a
4. WB-96 (E45) (0) at 0xfffbe000 [62], versions 0x483, 0x1, 0x4
5. Memory (1) at 0xfffbf000 [63], versions 0x25, 0x0, 0x9
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="CPU"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     running probe of device
"WB-96 (E45)"
------------------- claim_device: driver="CPU", device="WB-96 (E45)"
------------------- claim_device: dev info: hw_path=62, irq=0,
hpa=0xfffbe000, num_addrs=0
------------------- register_parisc_driver:     checking dev "Memory"
(63)
CPU(s): 1 x PA7100LC (PCX-L) at 96.000000 MHz
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="SBA"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="lba"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="U2/Uturn"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="Lasi"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     running probe of device
"WB-96 Core BA"
Lasi version 0 at 0xf0100000 found.
LED display at f010c000 registered
------------------- claim_device: driver="Lasi", device="WB-96 Core BA"
------------------- claim_device: dev info: hw_path=60, irq=0,
hpa=0xf0100000, num_addrs=1
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="Asp"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="Wax"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="EISA Bus Adapter"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="Dino"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch support not available.
Starting kswapd
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="Parallel"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
STI GSC/PCI graphics driver version 0.9
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="sti (native)"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
pty: 256 Unix98 ptys configured
PDC Software Console version 0.3 (2001-11-17), christoph.plattner@gmx.at
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="Serial RS232"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="Serial RS232"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="Lasi psaux"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
lp: driver loaded but no devices found
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="Apricot"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     running probe of device
"WB-96 Core LAN (802.3)"
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 96 D4 F6 IRQ 87.
82596.c $Revision: 1.29 $
------------------- claim_device: driver="Apricot", device="WB-96 Core
LAN (802.3)"
------------------- claim_device: dev info: hw_path=6, irq=87,
hpa=0xf0107000, num_addrs=0
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
SCSI subsystem driver Revision: 1.00
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="GSC SCSI (Zalon)"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="Lasi SCSI"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="Lasi Harmony"
------------------- register_parisc_driver: running dev loop:
------------------- register_parisc_driver:     checking dev "Java BC
GSC+ Port" (56)
------------------- register_parisc_driver:     checking dev "WB-96 Core
BA" (60)
------------------- register_parisc_driver:     checking dev "WB-96 Core
LAN (802.3)" (6)
------------------- register_parisc_driver:     checking dev "WB-96
(E45)" (62)
------------------- register_parisc_driver:     checking dev "Memory"
(63)
STI GSC/PCI graphics driver version 0.9
------------------- register_parisc_driver: entry
------------------- register_parisc_driver: name="sti (native)"
BUG: Skipping previously registered driver: sti (native)
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
eth0: link ok.
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 196.1.1.50, my address is 196.1.1.100
IP-Config: Complete:
      device=eth0, addr=196.1.1.100, mask=255.255.255.0, gw=196.1.1.50,
     host=196.1.1.100, domain=pladom.at, nis-domain=pladom.at,
     bootserver=196.1.1.50, rootserver=196.1.1.50,
rootpath=/export/rootfs/rudolph/debian
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 196.1.1.50
Looking up port of RPC 100005/1 on 196.1.1.50
VFS: Mounted root (nfs filesystem).
Freeing unused kernel memory: 365k freed
INIT: version 2.84 booting
Activating swap.
System time was Wed Jun 26 21:33:41 UTC 2002.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Wed Jun 26 21:34:02 UTC 2002.
Checking all file systems...
fsck 1.27 (8-Mar-2002)
Setting kernel variables.
Mounting local filesystems...
nothing was mounted
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: SIOCADDRT: File exists
done.
Starting portmap daemon: portmap.
Starting portmapper... Mounting remote filesystems...

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Wed Jun 26 23:34:14 CEST 2002

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting NIS services: ypbind 
Starting internet superserver: xinetd.
Starting NTP server: ntpd.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.

Debian GNU/Linux 3.0 rudolph ttyB0

rudolph login: 


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company:	christoph.plattner@alcatel.at
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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: [parisc-linux] Problem find devices on the E55 I/O interfaces
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Hello PARISC hackers !

I have problems in the device probing on the E55, and I need some
hints here. I am at the very starting point of the SCSI driver
development, and other (Rayn) will also need this for MUX (serial),
etc....

The E55 is a machine of the type "SYSTEM MAP TYPE".
I instrumented the code to read out the values and elements at the
inventory probing. I will append the log of my "debug helps", they
are quite self explaining.

The `walk_central_bus()' calls seems to do correct work. It finds the 
basic elements on my E55:

	On the "56" the bus converter
	On "62" and "63" components on the system (main) board
	- "62" is the CPU, "63" the Memory

	The search was started at the "60".

My problem now. The `walk_lower_bus()' under the device "56" cannot
find any further devices. Seen on PDC or HP-UX, under "56/52" the
SCSI controller is present, further the parallel interface and the 
serial MUX also should be found.

Do we use the wrong search address here, taken from io_io_low of
the `struct bc_module'. Do we access it in a wrong way ?
Is THIS structure documented in any of the PARISC documents, other-
wise, where does this structure come from ?

I hope you have some hints here ...

Best regards
Christoph P.

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Content-Transfer-Encoding: 7bit

The "Color Recovery" code supposedly dithers the colors in some
special way down to 8bpp and then the hardware somehow restores
them, right?



Matthew Wilcox wrote:
> On Wed, Jun 26, 2002 at 03:43:46PM +0200, joel.soete@freebel.net wrote:
> 
>>Quoting Matthew Wilcox <willy@debian.org>:
>>
>>>it's probably less work to teach XFree86 how to talk to your gfx card
>>>than it is to get the HPUX X server to run on Linux.
>>
>>I would prefer also but is there any documentation about this interface?
> 
> 
> i meant that it's probably less work to reverse-engineer the interface
> and implement it in XFree86 than it is to get the HPUX X server working.
> 



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From - Thu Nov 08 21:23:18 2018
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From: Jeremy Drake <jeremyd@apptechsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] CVS kernel broken?
Date: Wed, 26 Jun 2002 22:39:55 -0700 (PDT)
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I am unable to build the current cvs kernel.  make oldconfig says 
scripts/Configure: drivers/hil/Config.in: No such file or directory
make[1]: *** [oldconfig] Error 1

and make menuconfig says 
Preparing scripts: functions, parsingscripts/Menuconfig: line 1: 10304 
Segmentation fault      awk "$1"
Awk died with error code 139. Giving up.
...

Is this just me, or is there some problem I don't know about?

-- 
Skinner's Constant (or Flannagan's Finagling Factor):
	That quantity which, when multiplied by, divided by, added to,
	or subtracted from the answer you got, gives you the answer you
	should have gotten.




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From: joel.soete@freebel.net
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Subject: Re: [parisc-linux] gcc-3.2 failed to compile kernel
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> > joel.soete@freebel.net wrote:
> > > In file included from pacache.S:44:
> > > /Develop/parisc-linux/src/linux-2.4.18-pa40/include/asm/cache.h:9:
> 1/config.h
> > >   :
> > > No such file or directory
> > 
> > The offending line is:
> >       8 #include <linux/config.h>
> > 
> > I'll assume "linux" being #define'd to 1.
> > gcc predefines perhaps?
> 
> Yes, the predefine is standard and is present in gcc 3.0.4, etc.  You
> can
> see macro defines using the "-dM -E" option.

Oops,  gcc -E ... works well and give the expect results (if I do a link
1->linux) but gcc -dM -E ... SegFault :((

# gcc -dM -E -D__ASSEMBLY__ -traditional -D__KERNEL__
-I/Develop/parisc-linux/src/linux/include  -c -o pacache.CPP pacache.S
In file included from /Develop/parisc-linux/src/linux/include/asm/assembly.h:31,
                 from pacache.S:44:
/Develop/parisc-linux/src/linux/include/asm/offset.h:3: unterminated #ifndef
cc1: internal compiler error: internal error: Segmentation fault

> 
> However, the macro should not be expanded inside <> or "".  Joel, can
> you
> file a PR <http://gcc.gnu.org/cgi-bin/gnatsweb.pl>?
> 

For the first problem ("linux" #define 1) here is the references:
----- Forwarded message from gcc-gnats@gcc.gnu.org -----
Date: 27 Jun 2002 06:16:00 -0000
From: gcc-gnats@gcc.gnu.org
Reply-To: gcc-gnats@gcc.gnu.org,nobody@gcc.gnu.org
Subject: Re: c/7138: gcc-3.2 failed to compile kernel
To: joel.soete@freebel.net

Thank you very much for your problem report.
It has the internal identification `c/7138'.
The individual assigned to look at your
report is: unassigned.

>Category:       c
>Responsible:    unassigned
>Synopsis:       gcc-3.2 failed to compile kernel
>Arrival-Date:   Wed Jun 26 23:16:00 PDT 2002


----- End forwarded message -----

Would I have to assign it to you?
Thanks for all,
    Joel


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Quoting Jeremy Drake <jeremyd@apptechsys.com>:

> I am unable to build the current cvs kernel.  make oldconfig says 
> scripts/Configure: drivers/hil/Config.in: No such file or directory
> make[1]: *** [oldconfig] Error 1
> 
> and make menuconfig says 
> Preparing scripts: functions, parsingscripts/Menuconfig: line 1: 10304 
> Segmentation fault      awk "$1"
> Awk died with error code 139. Giving up.
> ...
> 
> Is this just me, or is there some problem I don't know about?
> 

No problem for me.
Do you try "make distclean" before oldconfig?

Joel


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On Thursday 27 June 2002 08:46, joel.soete@freebel.net wrote:
> Quoting Jeremy Drake <jeremyd@apptechsys.com>:
> > I am unable to build the current cvs kernel.  make oldconfig says
> > scripts/Configure: drivers/hil/Config.in: No such file or directory
> > make[1]: *** [oldconfig] Error 1
> >
> > and make menuconfig says
> > Preparing scripts: functions, parsingscripts/Menuconfig: line 1: 10304
> > Segmentation fault      awk "$1"
> > Awk died with error code 139. Giving up.
> > ...
> >
> > Is this just me, or is there some problem I don't know about?
>
> No problem for me.
> Do you try "make distclean" before oldconfig?
>
> Joel

Please checkout the CVS kernel again.
I've moved the HIL source to an own directory and updated some other
things.

Greetings,
Helge



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Subject: [parisc-linux] Kernel > -pa41 debian-configs file not adequate
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Hi fellows,

Well I have noticed yesterday when building the -pa41 and -pa42 netinst 
ISO that the debian-configs files were not reflecting the changes that 
Helge made to the kernel source, and therefore the scripted build could 
not achieve, as it stopped there:

*
* HIL support
*
HIL core support (CONFIG_HIL) [Y/m/n/?]
   HIL Keyboard (basic) support (CONFIG_HIL_KBD_BASIC) [N/y/?] (NEW)


I could possibly fix that, but I don't know whether it should be 'Y' or 
'N', or maybe there is some *maintainer* who will do that better than 
me ;)

Greetings,


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Subject: Re: [parisc-linux] Kernel > -pa41 debian-configs file not adequate
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Hi Thibaut,

Please use CONFIG_HIL=y, CONFIG_HIL_KBD_BASIC=y,
all other HIL configs =n.
I'll fix that later today in CVS.

Greetings,
Helge

On Thursday 27 June 2002 11:43, Thibaut VARENE wrote:
> Hi fellows,
>
> Well I have noticed yesterday when building the -pa41 and -pa42 netinst
> ISO that the debian-configs files were not reflecting the changes that
> Helge made to the kernel source, and therefore the scripted build could
> not achieve, as it stopped there:
>
> *
> * HIL support
> *
> HIL core support (CONFIG_HIL) [Y/m/n/?]
>    HIL Keyboard (basic) support (CONFIG_HIL_KBD_BASIC) [N/y/?] (NEW)
>
>
> I could possibly fix that, but I don't know whether it should be 'Y' or
> 'N', or maybe there is some *maintainer* who will do that better than
> me ;)
>
> Greetings,
>
>
> Thibaut VARENE
> PA/Linux ESIEE Team
> http://pateam.esiee.fr/




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On Wed, Jun 26, 2002 at 03:54:39PM -0400, B. Douglas Hilton wrote:
> The "Color Recovery" code supposedly dithers the colors in some
> special way down to 8bpp and then the hardware somehow restores
> them, right?

As far as I can tell from reading the documentation on the web,
it's simply a programmable palette.  This doesn't seem terribly
interesting/hard, so I assume there must be more to it than that.

-- 
Revolutions do not require corporate support.



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> Oops,  gcc -E ... works well and give the expect results (if I do a link
> 1->linux) but gcc -dM -E ... SegFault :((
> 
> # gcc -dM -E -D__ASSEMBLY__ -traditional -D__KERNEL__
> -I/Develop/parisc-linux/src/linux/include  -c -o pacache.CPP pacache.S
> In file included from /Develop/parisc-linux/src/linux/include/asm/assembly.h:31,
>                  from pacache.S:44:
> /Develop/parisc-linux/src/linux/include/asm/offset.h:3: unterminated #ifndef
> cc1: internal compiler error: internal error: Segmentation fault

The '-c' shouldn't be there but cc1 shouldn't ICE on an unterminated #ifdef.
Is the #ifdef actually unterminated?  Would you file a PR on this one as
well?

I'm also seeing a problem with the preprocessor on the vax :(

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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It is perfectly all right now.  Just a messed up cvs tree.  An rm -rf and 
a cvs co took care of it.

On Thu, 27 Jun 2002, John David Anglin wrote:

> > Oops,  gcc -E ... works well and give the expect results (if I do a link
> > 1->linux) but gcc -dM -E ... SegFault :((
> > 
> > # gcc -dM -E -D__ASSEMBLY__ -traditional -D__KERNEL__
> > -I/Develop/parisc-linux/src/linux/include  -c -o pacache.CPP pacache.S
> > In file included from /Develop/parisc-linux/src/linux/include/asm/assembly.h:31,
> >                  from pacache.S:44:
> > /Develop/parisc-linux/src/linux/include/asm/offset.h:3: unterminated #ifndef
> > cc1: internal compiler error: internal error: Segmentation fault
> 
> The '-c' shouldn't be there but cc1 shouldn't ICE on an unterminated #ifdef.
> Is the #ifdef actually unterminated?  Would you file a PR on this one as
> well?
> 
> I'm also seeing a problem with the preprocessor on the vax :(
> 
> Dave
> 

-- 
"Cable is not a luxury, since many areas have poor TV reception."
		-- The mayor of Tucson, Arizona, 1989




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This answer concern well your CVS Kernel?

Nice so :)

Joel

Quoting Jeremy Drake <jeremyd@apptechsys.com>:

> It is perfectly all right now.  Just a messed up cvs tree.  An rm -rf
> and 
> a cvs co took care of it.
> 
> On Thu, 27 Jun 2002, John David Anglin wrote:
> 
> > > Oops,  gcc -E ... works well and give the expect results (if I do a
> link
> > > 1->linux) but gcc -dM -E ... SegFault :((
> > > 
> > > # gcc -dM -E -D__ASSEMBLY__ -traditional -D__KERNEL__
> > > -I/Develop/parisc-linux/src/linux/include  -c -o pacache.CPP
> pacache.S
> > > In file included from
> /Develop/parisc-linux/src/linux/include/asm/assembly.h:31,
> > >                  from pacache.S:44:
> > > /Develop/parisc-linux/src/linux/include/asm/offset.h:3: unterminated
> #ifndef
> > > cc1: internal compiler error: internal error: Segmentation fault
> > 
> > The '-c' shouldn't be there but cc1 shouldn't ICE on an unterminated
> #ifdef.
> > Is the #ifdef actually unterminated?  Would you file a PR on this one
> as
> > well?
> > 
> > I'm also seeing a problem with the preprocessor on the vax :(
> > 
> > Dave
> > 
> 
> -- 
> "Cable is not a luxury, since many areas have poor TV reception."
> 		-- The mayor of Tucson, Arizona, 1989
> 
> 
> 


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> > > > 1->linux) but gcc -dM -E ... SegFault :((
> > > > 
> > > > # gcc -dM -E -D__ASSEMBLY__ -traditional -D__KERNEL__
> > > > -I/Develop/parisc-linux/src/linux/include  -c -o pacache.CPP
> > pacache.S

I don't think gcc (cc1) should segfault even if the cvs is messed up.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Hi all,

Thanks to advises of Robert I reach to configure the serials port of my b180 and
b2000 (No success with my 712?) to make serial ppp connection with MyIsp.

But I still log following messages:

Jun 28 09:46:22 palinux pppd[310]: Script /etc/ppp/ip-up started (pid 316)
Jun 28 09:46:23 palinux pppd[310]: Script /etc/ppp/ip-up finished (pid 316),
status = 0x0
Jun 28 09:46:23 palinux pppd[310]: read: Resource temporarily unavailable
Jun 28 09:46:23 palinux pppd[310]: read /dev/ppp: Resource temporarily unavailable
Jun 28 09:46:25 palinux pppd[310]: read: Resource temporarily unavailable
Jun 28 09:46:25 palinux pppd[310]: read /dev/ppp: Resource temporarily unavailable
Jun 28 09:46:25 palinux pppd[310]: read: Resource temporarily unavailable
Jun 28 09:46:25 palinux pppd[310]: read /dev/ppp: Resource temporarily unavailable
What does it means?

Even thought all seems to works fine (host ftp.de.debian.org, ncftp
ftp.de.debian.org, lynx debian.org; all seems Ok).

Joel

PS: OTC with minicom I get garbage if baudrate <> 9600? (hw or sw flow control
on both end)



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Hi,

Neil seems to have fixed this problem but another one appears at the same place.

Here is the continue of story:

Quoting neil@gcc.gnu.org:

> Synopsis: gcc-3.2 failed to compile kernel
> > State-Changed-From-To: analyzed->closed
> State-Changed-By: neil
> State-Changed-When: Thu Jun 27 23:31:44 2002
> State-Changed-Why:
> Fixed.  Please let me know if it doesn't work for you (unlikely).
> >
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7138
> > Hi Neil,

This seems to be fixed but (just for info) another problem at the same place:

gcc -D__KERNEL__ -I/Develop/parisc-linux/src/linux-2.4.18-pa40/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing
-fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1
-mschedule=7100   -DKBUILD_BASENAME=cache  -c -o cache.o cache.c
gcc -D__ASSEMBLY__ -traditional -D__KERNEL__
-I/Develop/parisc-linux/src/linux-2.4.18-pa40/include  -c -o pacache.o pacache.S
/Develop/parisc-linux/src/linux-2.4.18-pa40/include/asm/pgtable.h: Assembler
messages:
/Develop/parisc-linux/src/linux-2.4.18-pa40/include/asm/pgtable.h:45: Fatal
error: Unknown opcode: `printk("%s:%d: bad pte %08lx.\n",
"/Develop/parisc-linux/src/linux-2.4.18-pa40/include/asm/pgtable.h",45,pte_val(e))'
make[1]: *** [pacache.o] Error 1
make[1]: Leaving directory
`/Develop/parisc-linux/src/linux-2.4.18-pa40/arch/parisc/kernel'
make: *** [_dir_arch/parisc/kernel] Error 2


But that will be another story (next 2 weeks i will be on hollidays :))

Many thanks Neil for your attention,
    Joel


Quoting joel.soete@freebel.net:

> This answer concern well your CVS Kernel?
> 
> Nice so :)
> 
> Joel
> 
> Quoting Jeremy Drake <jeremyd@apptechsys.com>:
> 
> > It is perfectly all right now.  Just a messed up cvs tree.  An rm -rf
> > and 
> > a cvs co took care of it.
> > 
> > On Thu, 27 Jun 2002, John David Anglin wrote:
> > 
> > > > Oops,  gcc -E ... works well and give the expect results (if I do
> a
> > link
> > > > 1->linux) but gcc -dM -E ... SegFault :((
> > > > 
> > > > # gcc -dM -E -D__ASSEMBLY__ -traditional -D__KERNEL__
> > > > -I/Develop/parisc-linux/src/linux/include  -c -o pacache.CPP
> > pacache.S
> > > > In file included from
> > /Develop/parisc-linux/src/linux/include/asm/assembly.h:31,
> > > >                  from pacache.S:44:
> > > > /Develop/parisc-linux/src/linux/include/asm/offset.h:3:
> unterminated
> > #ifndef
> > > > cc1: internal compiler error: internal error: Segmentation fault
> > > 
> > > The '-c' shouldn't be there but cc1 shouldn't ICE on an
> unterminated
> > #ifdef.
> > > Is the #ifdef actually unterminated?  Would you file a PR on this
> one
> > as
> > > well?
> > > 
> > > I'm also seeing a problem with the preprocessor on the vax :(
> > > 
> > > Dave
> > > 
> > 
> > -- 
> > "Cable is not a luxury, since many areas have poor TV reception."
> > 		-- The mayor of Tucson, Arizona, 1989
> > 
> > 
> > 
> 
> 
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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Quoting neil@gcc.gnu.org:

> Synopsis: gcc-3.2 failed to compile kernel
> 
> State-Changed-From-To: analyzed->closed
> State-Changed-By: neil
> State-Changed-When: Thu Jun 27 23:31:44 2002
> State-Changed-Why:
>     Fixed.  Please let me know if it doesn't work for you (unlikely).
> 
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7138
> 
> 
Hi Neil,

This seems to be fixed but (just for info) another problem at the same place:

gcc -D__KERNEL__ -I/Develop/parisc-linux/src/linux-2.4.18-pa40/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing
-fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1
-mschedule=7100   -DKBUILD_BASENAME=cache  -c -o cache.o cache.c
gcc -D__ASSEMBLY__ -traditional -D__KERNEL__
-I/Develop/parisc-linux/src/linux-2.4.18-pa40/include  -c -o pacache.o pacache.S
/Develop/parisc-linux/src/linux-2.4.18-pa40/include/asm/pgtable.h: Assembler
messages:
/Develop/parisc-linux/src/linux-2.4.18-pa40/include/asm/pgtable.h:45: Fatal
error: Unknown opcode: `printk("%s:%d: bad pte %08lx.\n",
"/Develop/parisc-linux/src/linux-2.4.18-pa40/include/asm/pgtable.h",45,pte_val(e))'
make[1]: *** [pacache.o] Error 1
make[1]: Leaving directory
`/Develop/parisc-linux/src/linux-2.4.18-pa40/arch/parisc/kernel'
make: *** [_dir_arch/parisc/kernel] Error 2


But that will be another story (next 2 weeks i will be on hollidays :))

Many thanks Neil for your attention,
    Joel


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From: Aaron Macks <aaronm@cs.brandeis.edu.ml.to>
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Subject: [parisc-linux] memory swap, and another Q?
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Are the weird memory modules in the 755 and 730 compatible?  I have a 
755 with 384MB and recently acquired a 730 with 16 and was wondering 
if I could somehow even things out a little.
-The other question: I was going to set the console on the 730 to 
tty_a, and went into the admin menu and said 'path console 
serial_a'(or whatever the right syntax according to help console is). 
'path' then returned the correct value for console, but upon reboot, 
nothing out of serial and the monitor displayed all of the boot info. 
What did I miss?
Aaron
-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!



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From: "Chuck" <atkinsc@yifan.net>
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Subject: [parisc-linux] 735 and FW SCSI
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I have a 735/125 and I'm trying to install parisc-linux using the 0.9.3 ISO
but it doesnt detect any of my harddisks.  It seems the kernel doesnt load
support for the FW SCSI controller which the disks are on.  It loads the
driver for the other scsi controller but not the FW SCSI controller.  Is
there any way I can get parisc-linux to recognize my FW SCSI controller for
the install?

Chuck





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From: Dennis Schneck <dennisschneck@web.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP Series 9000  715/64
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Hello,


soory about my poor english

i have a HP 715/64 Workstation.
I have installed the Debian Woody 3.0 pre relase on it.

the kenrel for ../64 don't run but the .../32


kernel 2.4.9-32 hppa




my problem is, i cant start the X-Server



i tryed to configure the x-server but i dosent run.



witch  vga-card must i select   in the xf98config ???


or is there a tool to "auto configure" the x-server   like the Xconfiguator from redhat ???

thanks


bye

dennis


-- 
Dennis Schneck

e-Mail: schneck@bigfoot.de
http://www.dennisschneck.de.vu

UMTS 01212-5-105-18-026 (Fax. / Voice)

--------------------------------------------------

Attach not bigger than 1,7 MB. Thanks !

Anhaenge nicht grosser als 1,7 MB senden. Danke !

--------------------------------------------------
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] HP Series 9000  715/64
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Hi Dennis,

please read the PARISC-Linux FAQ at http://www.parisc-linux.org/faq/index.html

Greetings,
Helge

On Saturday 29 June 2002 12:15, Dennis Schneck wrote:
> Hello,
>
> soory about my poor english
>
> i have a HP 715/64 Workstation.
> I have installed the Debian Woody 3.0 pre relase on it.
>
> the kenrel for ../64 don't run but the .../32
> kernel 2.4.9-32 hppa
> my problem is, i cant start the X-Server
> i tryed to configure the x-server but i dosent run.
> witch  vga-card must i select   in the xf98config ???
> or is there a tool to "auto configure" the x-server   like the Xconfiguator
> from redhat ???
>
> thanks
> bye
> dennis




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From: Andrew Shugg <andrew@neep.com.au>
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Chuck said:
> I have a 735/125 and I'm trying to install parisc-linux using the 0.9.3 ISO
> but it doesnt detect any of my harddisks.  It seems the kernel doesnt load
> support for the FW SCSI controller which the disks are on.  It loads the
> driver for the other scsi controller but not the FW SCSI controller.  Is
> there any way I can get parisc-linux to recognize my FW SCSI controller for
> the install?
> 
> Chuck

I might be wrong, but I think the 735's "Outfield" fast-wide SCSI
adapter is not supported - at least not in the kernel on the 0.9.3
CDROM (2.4.9).  The 0.9.3 ISO is a bit old by now, it was released six
months ago in Dec 2001.  The CVS kernel is up to version 2.4.18-pa44.  

Can you move your diskss to the supported controller?  That way at least
you'll be able to get an install happening.

Current net-install CDROM images can be downloaded here:

  http://pateam.esiee.fr/download.html

Please read through this mailing list's archives for information on
installing with these images, as well as Q&As about hardware support.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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Subject: Re: [parisc-linux] 735 and FW SCSI
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> Can you move your diskss to the supported controller?  That way at least
> you'll be able to get an install happening.

The Outfield FW interface is differential.  Disks on this interface are
not compatible with the suppored narrow interface.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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J. David Anglin said:
> The Outfield FW interface is differential.  Disks on this interface are
> not compatible with the suppored narrow interface.

Fast-wide differential?  I knew I was missing something.  And I've got
one of those beasts on a shelf behind me too ...  =)

Who has the power & might to update the Outfield FW entry in the hwdb
to include a note that it's differential SCSI?

Thanks for the correction, Dave.  I guess Chuck is going to have to find
some 'normal' SCSI disks, or go for the NFS-root option.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."



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Xref: news.gmane.org gmane.linux.ports.parisc:15256

Well would I be able to use the current netinst iso to install onto the
FWSCSI HD?

-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Andrew
Shugg
Sent: Saturday, June 29, 2002 12:28 PM
To: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] 735 and FW SCSI


J. David Anglin said:
> The Outfield FW interface is differential.  Disks on this interface are
> not compatible with the suppored narrow interface.

Fast-wide differential?  I knew I was missing something.  And I've got
one of those beasts on a shelf behind me too ...  =)

Who has the power & might to update the Outfield FW entry in the hwdb
to include a note that it's differential SCSI?

Thanks for the correction, Dave.  I guess Chuck is going to have to find
some 'normal' SCSI disks, or go for the NFS-root option.

Andrew.

--
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."

_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux






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Tried the new 4.2.0 snapshots on my C110. It tells me it cannot find the 
framebuffer, and can't support 24-bit color (even though 4.1 can).

The system appears to be looking in /proc/bus/pci to look for video 
cards and framebuffers, which is a bogus way to find video cards on a 
PC, too (VESA bus, ISA, EISA, MCA... where is that video card?)

On the sparc/32, they're going down /proc/openprom to find the video 
adapter; I'm wondering if it's appropriate to try to expose the device 
list the kernel sees during bootup as a /proc file, and then write a 
special handler like they have for "sbus".

I'm not too fond of synthesizing a "pci" directory, and making up fake 
IDs for things that aren't PCI cards...

a) anyone already come up with a better solution?
b) if one has to be developed, is a little file in /proc the way to go?

-- 
____               .:.                 ____
Bryan W. Headley - bwheadley@earthlink.net




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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] HOWTO: Using HIL keyboard and HIL mouse on PARISC
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Hi all,

starting with the PARISC CVS kernel 2.4.18-pa45 I've switched the kernel 
configuration to use the new HIL drivers by default.
The new HIL drivers were written by Brian S. Julin and I mostly only did some
bugfixing, cleanups and re-integration/re-organization  into our CVS kernel.

Features of the new HIL drivers are:
1. support for HIL mice,
2. support for HIL tablets
3. support for HIL keyboards
4. based on the Linux Input driver model !

Since the new HIL drivers use the standard Linux input interface, 
HIL devices can now be used and set up in the same way as it's done
with USB devices on intel platforms.
For further documentation on the Linux input interface please see:
http://cvs.parisc-linux.org/linux/Documentation/input/input.txt?rev=HEAD&content-type=text/vnd.viewcvs-markup


HOWTO use the new HIL drivers on PA-RISC:
---------------------------------------------------------------
1. Please ensure you have the 2.4.18-pa45 (or higher) kernel source.
If you're using pre-built kernel binaries, please skip the following step.

2. Use the default kernel configuration 
 (e.g. delete your .config file and do a "make menuconfig" or "make oldconfig").
If you use your own kernel configuration check at least the following kernel options:
CONFIG_INPUT=y
CONFIG_INPUT_KEYBDEV=y
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_EVDEV=y

CONFIG_INPUT_SERIO=y

CONFIG_HIL=y
CONFIG_HP_SDC=y
CONFIG_HIL_MLC=y
CONFIG_HP_SDC_MLC=y
CONFIG_HIL_KBD=y
CONFIG_HIL_PTR=y

The CONFIG_HIL_KBD_BASIC option has to be DISABLED !!

3. Check that the following device files are available:
	/dev/input/mice
	/dev/input/mouseX
	/dev/input/eventX
where X is any number. 
If those files aren't present yet, create them as root (!!) with the commands:
	cd /dev
	./MAKEDEV input

4. Configure gpm with the following two /etc/gpm.conf options:
	device=/dev/input/mice
	type=imps2

5. Configure XFree86. 
Sample /etc/X11/XF86Config-4 configuration options are:
Section "InputDevice"
        Identifier      "HIL Keyboard"
        Driver          "keyboard"
        Option          "CoreKeyboard"
EndSection
Section "InputDevice"
        Identifier      "HIL Mouse"
        Driver          "mouse"
        Option          "CorePointer"
        Option          "Device"                "/dev/input/mice"
        Option          "Protocol"              "ImPS/2"
        Option          "ZAxisMapping"          "4 5"
EndSection
Section "ServerLayout"
        Identifier      "Default Layout"
        Screen          "Default Screen"
        InputDevice     "HIL Keyboard"
        InputDevice     "HIL Mouse"
EndSection

6. Reboot your system with the new kernel and enjoy.
HIL keyboards, mice and tablets should be automatically detected.

Have fun,
Helge




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On Sat, Jun 29, 2002 at 05:08:41PM -0500, Chuck wrote:
> Well would I be able to use the current netinst iso to install onto the
> FWSCSI HD?

No, we don't have support for FWD scsi in 735 at the moment.  May do
soon, I've done a bit more work on it recently.  I don't have a 735, so
it's over to Ryan now test/debug my changes.

Richard




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Subject: Re: [parisc-linux] HOWTO: Using HIL keyboard and HIL mouse on PARISC
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> The new HIL drivers were written by Brian S. Julin and I mostly only did some
> bugfixing, cleanups and re-integration/re-organization  into our CVS kernel.

Excellent!

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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From: E Frank Ball <frankb@efball.com>
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Subject: Re: [parisc-linux] 735 and FW SCSI
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} No, we don't have support for FWD scsi in 735 at the moment.  May do
} soon, I've done a bit more work on it recently.  I don't have a 735, so
} it's over to Ryan now test/debug my changes.
} 
} Richard

Does anybody have a source for replacement FastWide SCSI drives?  We
can't find any and as a result we are trying to phase out all the
machines at work that are using them.  I'm been converting 735s to
single ended (SCSI2) by taking the drive trays and cables (and RAM) from
730s (which get scrapped out).

-- 

   E Frank Ball                frankb@efball.com



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This is a multi-part message in MIME format.

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	charset="iso-8859-1"
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Well, I have decided that my time will be better spent on Intel/AMD =
based systems and am therefore offering my parisc to whoever wants it =
for free (plus, I need the space).  I put debian on it, but never messed =
with it much.  Contact me and we'll agree on a time when you can come =
over and get it (Connecticut).  I ain't shipping it anywhere.  It works =
good, and I have the HPUX 10.20 CD's, too, if you want them.

256 meg (I think)
an internal drive (I'd have to power it up to tell you how big it is, =
but probably about a gig)
an external 4 gig scsi drive
an internal 3.5" scsi floppy drive
an external scsi cdrom
hp-il keyboard with teeny little hp-il box
hp-il mouse
big ole a2094a monitor

The clock battery is about dead, so you'll have to set the clock, but it =
will keep a charge for a while and if you don't shut it down much, =
you'll be fine.

I'll even throw in the bnc to rj-45 transceiver.

elkdad@hotmail.com

------=_NextPart_000_0007_01C22060.DDC32C20
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2715.400" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#f0e8d8>
<DIV><FONT face=3D"Comic Sans MS">Well, I have decided that my time will =
be better=20
spent on Intel/AMD based systems and am therefore offering my parisc to =
whoever=20
wants it for free (plus, I need the space).&nbsp; I put debian on it, =
but never=20
messed with it much.&nbsp; Contact me and we'll agree on a time when you =
can=20
come over and get it (Connecticut).&nbsp; I ain't shipping it =
anywhere.&nbsp; It=20
works good, and I have the HPUX 10.20 CD's, too, if you want =
them.</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS"></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Comic Sans MS">256 meg (I think)</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS">an internal drive (I'd have to power =
it up to=20
tell you how big it is, but probably about a gig)</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS">an external 4 gig scsi =
drive</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS">an internal 3.5" scsi floppy =
drive</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS">an external scsi cdrom</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS">hp-il keyboard with teeny little hp-il =

box</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS">hp-il mouse</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS">big ole a2094a monitor</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS"></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Comic Sans MS">The clock battery is about dead, so =
you'll have=20
to set the clock, but it will keep a charge for a while and if you don't =
shut it=20
down much, you'll be fine.</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS"></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Comic Sans MS">I'll even throw in the bnc to rj-45=20
transceiver.</FONT></DIV>
<DIV><FONT face=3D"Comic Sans MS"></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Comic Sans MS"><A=20
href=3D"mailto:elkdad@hotmail.com">elkdad@hotmail.com</A></FONT></DIV></B=
ODY></HTML>

------=_NextPart_000_0007_01C22060.DDC32C20--




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On Sun, Jun 30, 2002 at 09:48:18AM -0500, Bryan W. Headley wrote:
> The system appears to be looking in /proc/bus/pci to look for video 
> cards and framebuffers, which is a bogus way to find video cards on a 
> PC, too (VESA bus, ISA, EISA, MCA... where is that video card?)

Ugh.

> I'm not too fond of synthesizing a "pci" directory, and making up fake 
> IDs for things that aren't PCI cards...

Well... it's a hack which we already kind of do, and won't need to
carry forward into 2.5.  There's a fake PCI device per IOC, so maybe
this could be filled in by a gfx card.  In 2.5, we'll have driverfs
and hopefully X won't have to tell the difference.

-- 
Revolutions do not require corporate support.



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Subject: Re: [parisc-linux] HOWTO: Using HIL keyboard and HIL mouse on PARISC
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On Sun, Jun 30, 2002 at 07:33:43PM +0200, Helge Deller wrote:
> The new HIL drivers were written by Brian S. Julin and I mostly only did some
> bugfixing, cleanups and re-integration/re-organization  into our CVS kernel.

Thanks to both of you for doing this.  It's great to have support for
these devices in the Linux kernel.

-- 
Revolutions do not require corporate support.



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] HOWTO: Using HIL keyboard and HIL mouse on PARISC
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...
> Features of the new HIL drivers are:
> 1. support for HIL mice,
> 2. support for HIL tablets
> 3. support for HIL keyboards
> 4. based on the Linux Input driver model !

excellent work helge!

I've appended your note to the README referenced by the FAQ:
	ftp://ftp.parisc-linux.org/XFree86/HILkeyb/README

please edit if needed.

grant



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [OT] Thanks!
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Parisc,

I attended OLS this last week and had a fabulous time!
I met many of you face-to-face for the first time and 
collaborated in person :) Putting a face to that email
makes a world of difference. I just wanted to take
a minute to say thanks to all the people that helped
make my stay awesome (and that of many others). 
I didn't get a chance to say 'cheers' to many of you, 
since I was out late and had to leave early on Sunday.

So here it is:

Cheers,
Many Thanks,
Carlos.

p.s. If you are heading to Debconf II then I'll get
	another chance! :)

p.p.s Thomas is using all my bandwidth!




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From: Bruno =?iso-8859-1?Q?L=E9on?= <nonolemono@yahoo.fr>
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Subject: [parisc-linux] Unable to launch emacs 21.2
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After installing the debian on my B1000, I tried to install some new
packages using dselect.
The installation process doesn't create any problem, but after that I can't
launch emacs 21.2.
I have the following message "Error : Unresolved inheritance operation".
Is there any log file I can have a look into to solve this problem?

Thanks,
Bruno. 




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Subject: Re: [parisc-linux] Unable to launch emacs 21.2
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I just solved it by apt-get upgrade emacs.

I hope it will help ;)




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Subject: [parisc-linux] Resolution: XFree 4.2
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It seems that adding a line,

   Section "Screen"
           Identifier      "Default Screen"
           Device  "Frame Buffer"
           Monitor  "Generic Monitor"
+         DefaultFbBpp    32
           DefaultDepth    24

Seems to do the trick. Don't know if it's needed on other resolutions...



-- 
____               .:.                 ____
Bryan W. Headley - bwheadley@earthlink.net




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Subject: Re: [parisc-linux] Problem find devices on the E55 I/O interfaces
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Hello Christoph,

Sorry for the late reply, had a great time at OLs.


On Wed, 2002-06-26 at 15:51, Christoph Plattner wrote:
> Hello PARISC hackers !
> 
> I have problems in the device probing on the E55, and I need some
> hints here. I am at the very starting point of the SCSI driver
> development, and other (Rayn) will also need this for MUX (serial),
> etc....
> 
> The E55 is a machine of the type "SYSTEM MAP TYPE".
> I instrumented the code to read out the values and elements at the
> inventory probing. I will append the log of my "debug helps", they
> are quite self explaining.
> 
> The `walk_central_bus()' calls seems to do correct work. It finds the 
> basic elements on my E55:
> 
> 	On the "56" the bus converter
> 	On "62" and "63" components on the system (main) board
> 	- "62" is the CPU, "63" the Memory
> 
> 	The search was started at the "60".
> 
> My problem now. The `walk_lower_bus()' under the device "56" cannot
> find any further devices. Seen on PDC or HP-UX, under "56/52" the
> SCSI controller is present, further the parallel interface and the 
> serial MUX also should be found.

This make sense.....

What type of bus is at 56?  The walk_native_bus (as the comments
and function name indicates) only walks native busses.  It does
look like this function should be called and work for this bus
since it is a bus converter instead of a bus adapter.

let me know what type of your central bus (I'm assuming GSC), and
the what is the type of your lower bus and I'll see what I can
find for you.

> Do we use the wrong search address here, taken from io_io_low of
> the `struct bc_module'. Do we access it in a wrong way ?
> Is THIS structure documented in any of the PARISC documents, other-
> wise, where does this structure come from ?

This structure is a specialized version of the io_module structure.
I have not found any external documentation describing it, I have
mainly figure out it out from scattered internal documentation and
HP-UX source.

Not many hints, but I'll work with you to get this figured out.

Thanks,

- Ryan


> I hope you have some hints here ...
> 
> Best regards
> Christoph P.
> 
> -- 
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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From: Thomas Marteau <marteaut@tuxfamily.org>
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Subject: Re: [parisc-linux] [OT] Thanks!
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Hi all,

> 
> I attended OLS this last week and had a fabulous time!
> I met many of you face-to-face for the first time and 
> collaborated in person :) Putting a face to that email
> makes a world of difference. I just wanted to take
> a minute to say thanks to all the people that helped
> make my stay awesome (and that of many others). 
I would like to add my thanks to you, guys who were at OLS. That was 
nice and a really interesting time to spend !

> I didn't get a chance to say 'cheers' to many of you, 
> since I was out late and had to leave early on Sunday.
So goodbye to those that I did not say it personnally and probably next 
year ;)
> 
> So here it is:
> 
> Cheers,
> Many Thanks,
Thomas (Even if it is Carlos' words ;)

> 
> p.p.s Thomas is using all my bandwidth!
hehe, I need it ;) Soon, my photos will be available.




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This is a multi-part message in MIME format.

------=_NextPart_000_007B_01C221B4.2C58EB50
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	charset="Windows-1252"
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Hi,

I have an a problem running the latest netinstall iso on my C3600, when =
I boot from the CD with the 32bit kernel, I get some screen corruption =
and then the first installer screen appears but I have no keyboard =
response.  And if I boot from the 64bit kernel I, the installer starts =
on the serial interface, however when I attach a serial console the =
screen doesn't output correctly,  The C3600 installed with a FXE5 and =
512Mb RAM, the SCSI disk that will be used is on the internal interface.

Can anyone give me a pointer or two as to what I am doing wrong.

Thanks in advance.
AG

------=_NextPart_000_007B_01C221B4.2C58EB50
Content-Type: text/html;
	charset="Windows-1252"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dwindows-1252">
<META content=3D"MSHTML 6.00.2716.2200" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3D"Courier New" size=3D2>Hi,</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>I have an a problem running the =
latest=20
netinstall iso on my C3600, when I boot from the CD with the 32bit =
kernel, I get=20
some screen corruption and then the first installer screen appears but I =
have no=20
keyboard response.&nbsp; And if I boot from the 64bit kernel I, the =
installer=20
starts on the serial interface, however when I attach a serial console =
the=20
screen doesn't output correctly,&nbsp; The C3600 installed with a FXE5 =
and 512Mb=20
RAM, the SCSI disk that will be used is on the internal =
interface.</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>Can anyone give me a pointer or =
two as to=20
what I am doing wrong.</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>Thanks in advance.</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2>AG</FONT></DIV></BODY></HTML>

------=_NextPart_000_007B_01C221B4.2C58EB50--



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Subject: Re: [parisc-linux] Installing on C3600
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Hi Alex,

Alex Green wrote:
> Hi,
>  
> I have an a problem running the latest netinstall iso on my C3600, when 
> I boot from the CD with the 32bit kernel, I get some screen corruption 
> and then the first installer screen appears but I have no keyboard 
> response.  And if I boot from the 64bit kernel I, the installer starts 
> on the serial interface, however when I attach a serial console the 
> screen doesn't output correctly.

If it is a hp terminal, you can change the emulation. It depends of the 
terminal type but you can have a look in your user guide or test (but I 
think that would request severall reboot) the emulation nearest vt100 IIRC.

Once you have found the right emulation, try first the more stable 
32-bits kernel (IIRC if you unplug ps/2 or usb mouse and keyboard, the 
kernel will switch to serial console on port 1).

> The C3600 installed with a FXE5 and 
> 512Mb RAM, the SCSI disk that will be used is on the internal interface.
>  

Dono if it is already supported (have a look a 
http://hwdb.parisc-linux.org/: I see that some one has already reach to 
install parisc-linux successfully)

Good luck,
     Joel




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Joel Soete wrote:
> Hi Alex,
> 
> Alex Green wrote:
> 
>> Hi,
>>  
>> I have an a problem running the latest netinstall iso on my C3600, 
>> when I boot from the CD with the 32bit kernel, I get some screen 
>> corruption and then the first installer screen appears but I have no 
>> keyboard response.  And if I boot from the 64bit kernel I, the 
>> installer starts on the serial interface, however when I attach a 
>> serial console the screen doesn't output correctly.
> 
> 
> If it is a hp terminal, you can change the emulation. It depends of the 
> terminal type but you can have a look in your user guide or test (but I 
> think that would request severall reboot) the emulation nearest vt100 IIRC.
> 
> Once you have found the right emulation, try first the more stable 
> 32-bits kernel (IIRC if you unplug ps/2 or usb mouse and keyboard, the 
> kernel will switch to serial console on port 1).

Another good solution could also be to run minicom as console emulation.

> 
>> The C3600 installed with a FXE5 and 512Mb RAM, the SCSI disk that will 
>> be used is on the internal interface.
>>  
> 
> 
> Dono if it is already supported (have a look a 
> http://hwdb.parisc-linux.org/: I see that some one has already reach to 
> install parisc-linux successfully)
> 
> Good luck,
>     Joel
> 





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Hey,

I found on this site <ftp://ftp.cirr.com/pub/hppa/mklinux/>
some patch against X11R6(.3?).

Could that be interesting?

Matthew Wilcox wrote:
> On Wed, Jun 26, 2002 at 03:43:46PM +0200, joel.soete@freebel.net wrote:
> 
>>Quoting Matthew Wilcox <willy@debian.org>:
>>
>>>it's probably less work to teach XFree86 how to talk to your gfx card
>>>than it is to get the HPUX X server to run on Linux.
>>
>>I would prefer also but is there any documentation about this interface?
> 
> 
> i meant that it's probably less work to reverse-engineer the interface
> and implement it in XFree86 than it is to get the HPUX X server working.
> 


That is I would like to read. But it is already too hard for me to hack 
linux kernel (with kernel sources). So i do not even have the very 
begining of a small idea about how to hack HPUX. Sorry.

Joel





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From: Ralf Hildebrandt <Ralf.Hildebrandt@charite.de>
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Subject: [parisc-linux] Power Button doesn't turn machine off anymore
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ok, I checked my kern.log:

The last time the "Gecko-style soft power enabled" turns up in the log
is today.

But it doesn't work anymore!
I can "turn off" the machine, but it doesn't halt itself or go down.

I'm running 2.4.18-pa46, it wasn't working with pa42 either, IMHO pa40
was still working. In pa35 it was definitely still working!
-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
They are on holiday for the first time in 5 years 




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Le mardi 2 juillet 2002, =E0 08:35 , Ralf Hildebrandt a =E9crit :

> ok, I checked my kern.log:
>
> The last time the "Gecko-style soft power enabled" turns up in the log
> is today.
>
> But it doesn't work anymore!
> I can "turn off" the machine, but it doesn't halt itself or go down.
I had the same problem on a 712 and a B132.
Though I hadn't time to try again with 712, the simple fact of rebooting=20=

the B132 again made it work.

On another one it work at first shot...

This is quite weird...
>
> I'm running 2.4.18-pa46, it wasn't working with pa42 either, IMHO pa40
> was still working. In pa35 it was definitely still working!
tried -pa45, but no change was made between pa45 and pa46 on that part.
pa42 didn't work either...

It seems that it is related to the changes Helge did in pa42... :)



Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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On Tue, 2 Jul 2002, Ralf Hildebrandt wrote:

> ok, I checked my kern.log:
>
> The last time the "Gecko-style soft power enabled" turns up in the log
> is today.
>
> But it doesn't work anymore!
> I can "turn off" the machine, but it doesn't halt itself or go down.
>
> I'm running 2.4.18-pa46, it wasn't working with pa42 either, IMHO pa40
> was still working. In pa35 it was definitely still working!

That's strange. -pa45 works for me (on a C240), but I think -pa39 wasn't!

Any suggestions ?

greetings max





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Am 02.07.2002 um 20:51:17 +0200 schrieb Thibaut VARENE folgendes:

> I had the same problem on a 712 and a B132.

Actually, it's a 712/80

> Though I hadn't time to try again with 712, the simple fact of rebooting 
> the B132 again made it work.

I rebooted the new pa46 kernel JUST to test this. No go.

> It seems that it is related to the changes Helge did in pa42... :)

That dreaded 42!

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
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Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
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(S)he's out buying some caffeine. 




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On Tue, 2 Jul 2002, Ralf Hildebrandt wrote:

> ok, I checked my kern.log:
> 
> The last time the "Gecko-style soft power enabled" turns up in the log
> is today.
> 
> But it doesn't work anymore!
> I can "turn off" the machine, but it doesn't halt itself or go down.
> 
> I'm running 2.4.18-pa46, it wasn't working with pa42 either, IMHO pa40
> was still working. In pa35 it was definitely still working!
> 

i'm running 
Linux version 2.4.17-32 (root@paer) (gcc version 3.0.4) #1 Sat Mar 16
17:09:00 MST 2002
from debian-unstable here and have the same effect
Enabled gecko-style soft power switch.
is printed out in my kernellog so i think it 'should' work
the machine is a 712/80 and this is the first kernel i run on it, so i
cannot tell you if it ever worked... it just doesnt work for me

can somebody with insight in the code please describe how it should work?

i have no clue if there is something like a apmd/acpid i should run.

tia

roh




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> Am 02.07.2002 um 20:51:17 +0200 schrieb Thibaut VARENE folgendes:
> > I had the same problem on a 712 and a B132.
> Actually, it's a 712/80
> > Though I hadn't time to try again with 712, the simple fact of rebooting 
> > the B132 again made it work.
> I rebooted the new pa46 kernel JUST to test this. No go.
> > It seems that it is related to the changes Helge did in pa42... :)
> That dreaded 42!
>

Okie. Time to ask questions.

What toolchain did you use to build your kernel?

c.



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Am 02.07.2002 um 15:06:06 -0400 schrieb Carlos O'Donell folgendes:

> Okie. Time to ask questions.
> 
> What toolchain did you use to build your kernel?

Toolchain?
I'm running Debian unstable on the box and built it directly on the
box, using make-kpkg (as usual)

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
they're seeing a therapist who doesn't have any computers in their office, a non-threatening place. 




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Hi,

I just tested a Voodoo3 3000 (PCI, 16MB SGRAM, universal PCI signaling)
in my C240 without success.

Obviously I can't use the Linux-FB drivers since they expect that the
graphics card was initialized by a PC BIOS. Therefore I (re)compiled -pa45
(32bit, PA8000, unofficial modutils-deb; thanks Grant!) without STIcon,
STI-fb or any other Framebuffer device.

I took out the Visualize-FX2 (in a PCI 64bit slot) and replaced it with
the Voodoo. After a reboot I could see the Voodoo card in /proc (device
PCI:1:4:0), and even X -scanpci found it. Unfortunately when trying to
start X it reported an error (attached: XFree86.0.log, pci64.txt).

Therefore I put the Voodoo card into a 'normal' PCI (32bit) slot. The
device is now PCI:0:3:0, the IO-ports changed and now XFree seemed to
be able to use it (X -probeonly worked), but whenever I started X it
crashed and the Monitor remained dark. Not only X crashes (at a random
point at initialization), but it causes a HPMC (attached files: hpmc.txt,
hpmc2.txt, pci.txt).

Since the Voodoo is found by the kernel and XFree86, it seems that this
card is h/w compatible, but there is some (hopefully small) software issue
that prevents it from working correctly.

Does anybody have a hint what's going wrong here ?
Or does anybody have a (PC, non-HP) PCI card that works on Linux/PARISC ?
Why is the card not working in a 64bit slot ?

Thanks in advance for your answers,

greetings max


PS: if I can't use the Voodoo in my HP, I'll put it in my Alpha ...




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Le mardi 2 juillet 2002, =E0 09:03 , Joachim Steiger a =E9crit :
>
> i'm running
> Linux version 2.4.17-32 (root@paer) (gcc version 3.0.4) #1 Sat Mar 16
>
AFAICR,  2.4.17 soft power switch support was not worse being=20
mentionned :)
It was somehow at a *very* early dev stage...

Try with a 2.4.18 kernel...



Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Power Button doesn't turn machine off anymore
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> > Okie. Time to ask questions.
> > What toolchain did you use to build your kernel?
> 
> Toolchain?
> I'm running Debian unstable on the box and built it directly on the
> box, using make-kpkg (as usual)
> 

Excellent. This means you are using the toolchain provided
by debian (and not rolling your own... some of us are doing this
and I wanted to clarify your position).

I'm not running any PARISC boxes in unstable (although I'm going
to so I can test stuff like this)... so could you tell me the 
version of your compilier and linker?

# gcc -v
# ld -v

Things can and will go wrong... but debugging info always helps :)
Trying to segregate toolchain issues is going to be my new quest.

As Willy said "I'm so happy to see someone interested in toolchain
work!" ;)

If you could apply the following patch and test your power button
again:

--- ./arch/parisc/kernel/power.c     Tue Jul  2 15:17:59 2002
+++ ./arch/parisc/kernel/power.c     Tue Jul  2 15:18:12 2002
@@ -55,6 +55,7 @@
 #include <asm/led.h>
 #include <asm/uaccess.h>

+#define DEBUG

 #ifdef DEBUG
 # define DPRINTK(x) printk x



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From: "M. Grabert" <xam@cs.ucc.ie>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C240 and PCI (PC) graphics card (attached files)
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---275789367-806371304-1025637735=:16680
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Sorry, I just forgot to attach the files

Thanks max

---275789367-806371304-1025637735=:16680
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---275789367-806371304-1025637735=:16680
Content-Type: TEXT/plain; name="pci64.txt"
Content-Transfer-Encoding: BASE64
Content-ID: <Pine.LNX.4.44.0207022022151.16680@sal.ucc.ie>
Content-Description: /proc/bus/pci for Voodoo3 in PCI 64bit slot
Content-Disposition: attachment; filename="pci64.txt"

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---275789367-806371304-1025637735=:16680
Content-Type: TEXT/plain; name="hpmc.txt"
Content-Transfer-Encoding: BASE64
Content-ID: <Pine.LNX.4.44.0207022022152.16680@sal.ucc.ie>
Content-Description: Voodoo3 in 32bit PCI slot, X causes HPMC
Content-Disposition: attachment; filename="hpmc.txt"

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---275789367-806371304-1025637735=:16680
Content-Type: TEXT/plain; name="hpmc2.txt"
Content-Transfer-Encoding: BASE64
Content-ID: <Pine.LNX.4.44.0207022022153.16680@sal.ucc.ie>
Content-Description: second try, no changes, still HPMC
Content-Disposition: attachment; filename="hpmc2.txt"

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---275789367-806371304-1025637735=:16680
Content-Type: TEXT/plain; name="pci.txt"
Content-Transfer-Encoding: BASE64
Content-ID: <Pine.LNX.4.44.0207022022154.16680@sal.ucc.ie>
Content-Description: /proc/bus/pci for Voodoo3 in 32bit PCI slot
Content-Disposition: attachment; filename="pci.txt"

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IE5vbi1wcmVmZXRjaGFibGUgMzIgYml0IG1lbW9yeSBhdCAweGYyZmZmMDAw
IFsweGYyZmZmMDdmXS4NCg==
---275789367-806371304-1025637735=:16680--



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Am 02.07.2002 um 15:21:47 -0400 schrieb Carlos O'Donell folgendes:

> # gcc -v

3.0.4

> # ld -v

2.12.90.0.9 20020526 

> --- ./arch/parisc/kernel/power.c     Tue Jul  2 15:17:59 2002
> +++ ./arch/parisc/kernel/power.c     Tue Jul  2 15:18:12 2002

Rebuilding now. Yawn.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
How many viruses must arrive before people realize, 
that M$ is just not ready for the enterprise?




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On Tue, Jul 02, 2002 at 08:22:15PM +0100, M. Grabert wrote:
> (II) resource ranges after xf86ClaimFixedResources() call:
> 	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
> 	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
> 	[2] -1 0	0xf2fff000 - 0xf2fff07f (0x80) MX[B]
> 	[3] -1 0	0xf2ffe000 - 0xf2ffefff (0x1000) MX[B]
> 	[4] -1 0	0xf2ffd000 - 0xf2ffd0ff (0x100) MX[B]
> 	[5] -1 0	0xf1ff0000 - 0xf1ffffff (0x10000) MX[B](B)
> 	[6] -1 0	0xf8000000 - 0xf9ffffff (0x2000000) MX[B](B)
> 	[7] -1 0	0xf6000000 - 0xf7ffffff (0x2000000) MX[B](B)
> 	[8] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
> 	[9] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
> 	[10] -1 0	0x0000ff00 - 0x0000ff7f (0x80) IX[B]
> 	[11] -1 0	0x0000fe00 - 0x0000feff (0x100) IX[B]
> 	[12] -1 0	0x0000ff00 - 0x0000ffff (0x100) IX[B](B)
> (WW) ****INVALID IO ALLOCATION**** b: 0xff00 e: 0xffff correcting=07

Hrm, see, I think this is wrong.  We're on PCI Bus 1, which has IO port
range 0x10000 to 0x1ffff.  I suspect Xfree is truncating us down to 16 bits.

> (II) Setting vga for screen 0.
> (II) TDFX(0): Softbooting the board (through the int10 interface).
> c000:195a: F1 ILLEGAL X86 OPCODE!
> (II) TDFX(0): Softbooting the board succeeded.
> (**) TDFX(0): Depth 24, (--) framebuffer bpp 32
> (=3D=3D) TDFX(0): RGB weight 888
> (=3D=3D) TDFX(0): Default visual is TrueColor
> (--) TDFX(0): Chipset: "3dfx Voodoo3"
> (--) TDFX(0): Linear framebuffer at 0xF8000000
> (--) TDFX(0): MMIO registers at addr 0xF6000000
> (EE) TDFX(0): No valid PIO address in PCI config space
> (EE) Screen(s) found, but none have a usable configuration.

Yeah.  I bet it's trying to do port IO to the wrong address, and things
are going splat.

> (--) TDFX(0): Linear framebuffer at 0xF8000000
> (--) TDFX(0): MMIO registers at addr 0xF6000000
> (--) TDFX(0): PIO registers at addr 0xFD00

=2E.. much more plausible ...

> (II) TDFX(0): DRAMINIT1 read 0x0, programming 0x202031 (not Banshee)
> (**) TDFX(0): VideoRAM: 16384 kByte Mapping 32768 kByte
> (=3D=3D) TDFX(0): Using gamma correction (1.0, 1.0, 1.0)
> (II) TDFX(0): Generic Monitor: U
>=20
> Lasi: barking without apparent reason.
>=20
> High Priority Machine Check (HPMC): Code=3D1 regs=3D10284080 (Addr=3D0000=
0000)

Fun.  I wonder exactly what X is (trying to) do.

--=20
Revolutions do not require corporate support.



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] Problem find devices on the E55 I/O interfaces
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Hello Ryan !

Really nice to here from you !

Did you do some hacks on the MUX (of your type of machine) ?

In one of my mails I sent a log with my instrumented debug output,
so you may be able to read out something concerning the question
of bus type.

Here is one question: Although I a have hardware knowledge, I am
not fix HP terminology here.
Can you give me some hints here with the kewords "main bus", 
"lower bus", etc...

Is the "main bus" the CPU bus which has connected the on board 
devices and has a bridge to the the backpanel, or without bridge 
to the backpanel ?
Or is the "main bus" the bus behind the bridge running on the back-
panel ?
Is the lower bus a bus on the interface card behind the bridge to 
the backpanel bus, or ... ?
Is the bus converter itself a bridge ?
Is it transperent bridge or has it to be initialized and is special
drivers needed, etc...

A ASCII block diagram would be helpful, only very simple like

   +-+                    +-+
   | |----- main bus -----| |----- backpanel bus ------------------
   +-+                    +-+    |                 |           |
  CPU (core)           Bridge    I/F 1            I/F 2       I/F 3
				+-+
				| |
				+-+  Bus Converter
				 |
				 +-------------------------- I/O bus
					|          |	
					MUX 	 SCSI

This is not true for the E55, it is only an EXAMPLE !!!

Together we will solve it, or ?

Christoph




Ryan Bradetich wrote:
> 
> Hello Christoph,
> 
> Sorry for the late reply, had a great time at OLs.
> 
> On Wed, 2002-06-26 at 15:51, Christoph Plattner wrote:
> > Hello PARISC hackers !
> >
> > I have problems in the device probing on the E55, and I need some
> > hints here. I am at the very starting point of the SCSI driver
> > development, and other (Rayn) will also need this for MUX (serial),
> > etc....
> >
> > The E55 is a machine of the type "SYSTEM MAP TYPE".
> > I instrumented the code to read out the values and elements at the
> > inventory probing. I will append the log of my "debug helps", they
> > are quite self explaining.
> >
> > The `walk_central_bus()' calls seems to do correct work. It finds the
> > basic elements on my E55:
> >
> >       On the "56" the bus converter
> >       On "62" and "63" components on the system (main) board
> >       - "62" is the CPU, "63" the Memory
> >
> >       The search was started at the "60".
> >
> > My problem now. The `walk_lower_bus()' under the device "56" cannot
> > find any further devices. Seen on PDC or HP-UX, under "56/52" the
> > SCSI controller is present, further the parallel interface and the
> > serial MUX also should be found.
> 
> This make sense.....
> 
> What type of bus is at 56?  The walk_native_bus (as the comments
> and function name indicates) only walks native busses.  It does
> look like this function should be called and work for this bus
> since it is a bus converter instead of a bus adapter.
> 
> let me know what type of your central bus (I'm assuming GSC), and
> the what is the type of your lower bus and I'll see what I can
> find for you.
> 
> > Do we use the wrong search address here, taken from io_io_low of
> > the `struct bc_module'. Do we access it in a wrong way ?
> > Is THIS structure documented in any of the PARISC documents, other-
> > wise, where does this structure come from ?
> 
> This structure is a specialized version of the io_module structure.
> I have not found any external documentation describing it, I have
> mainly figure out it out from scattered internal documentation and
> HP-UX source.
> 
> Not many hints, but I'll work with you to get this figured out.
> 
> Thanks,
> 
> - Ryan
> 
> > I hope you have some hints here ...
> >
> > Best regards
> > Christoph P.
> >
> > --
> > -------------------------------------------------------
> > private:      christoph.plattner@gmx.at
> > company:      christoph.plattner@alcatel.at
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Christoph Plattner wrote:
> Here is one question: Although I a have hardware knowledge, I am
> not fix HP terminology here.
> Can you give me some hints here with the kewords "main bus", 
> "lower bus", etc...

"central bus" = bus which connects all CPUs with all Memory.
On N-class this would be the Merced Bus.
On C3000 it's the runway bus.
On 712 is the GSC bus.

> Is the lower bus a bus on the interface card behind the bridge to 
> the backpanel bus, or ... ?

"lower bus" is usually the secondary bus below a bus adapter or bus converter.

Bus adapter and Bus converter differ in that one is transperent
to SW and the other is not. Eg. PCI Host Bus Adapter.
Both are forms of bridges.

hth,
grant



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On Tue, Jul 02, 2002 at 03:25:01PM -0600, Grant Grundler wrote:
> Christoph Plattner wrote:
> > Here is one question: Although I a have hardware knowledge, I am
> > not fix HP terminology here.
> > Can you give me some hints here with the kewords "main bus", 
> > "lower bus", etc...
> 
> "central bus" = bus which connects all CPUs with all Memory.
> On N-class this would be the Merced Bus.
> On C3000 it's the runway bus.
> On 712 is the GSC bus.

E class is probably different somehow.  It has a PCX-L chip in it, so the
only external bus from that chip is the GSC bus.  Look at the ioscan output
from the hwdb:

:pa:F:F:F:-1:-1:4294967295:bc:root:::0:root:root:CLAIMED:BUS_NEXUS::0
pa:pa:F:F:F:-1:-1:4294967295:bc:bus_converter:56:80 48 0 71 0 0 12 0 0 0 0 0 0 0 0 0 :1:root.bc:bc:CLAIMED:BUS_NEXUS:Bus Converter:1
pa:sio:F:F:F:-1:-1:4294967295:ext_bus:scsi3:56/40:0 64 128 132 0 0 59 128 6 0 0 0 43 6 0 2 :0:root.bc.scsi3:scsi3:CLAIMED:INTERFACE:HP 28696A - Wide SCSI ID=7:0
pa:sio:F:F:F:-1:-1:4294967295:ext_bus:scsi1:56/52:4 64 128 132 0 0 57 128 4 0 0 0 21 136 0 3 :1:root.bc.scsi1:scsi1:CLAIMED:INTERFACE:HP 28655A - SE SCSI ID=7:1pa:sio:F:T:F:-1:76:131072:ext_bus:cent0:56/53:0 64 0 5 0 0 58 128 0 0 0 0 0 0 0 0 :2:root.bc.lpr2:lpr2:CLAIMED:INTERFACE:HP 28655A - Parallel Interface:2
pa:sio:F:T:F:-1:193:0:tty:mux2:56/56:4 64 128 133 16 0 13 0 3 0 0 0 80 252 0 2 :0:root.bc.mux2:mux2:CLAIMED:INTERFACE:MUX:0
pa:core:F:F:F:-1:-1:4294967295:ba:core_adapter:60:1 17 128 11 0 0 129 0 0 0 0 0 0 0 0 0 :0:root.bus_adapter:bus_adapter:CLAIMED:BUS_NEXUS:Core I/O Adapter:0
core:wsio:F:T:F:-1:52:0:lan:lan2:60/6:1 17 128 138 0 0 138 0 2 0 0 0 219 151 0 2 :0:root.bus_adapter.lan2:lan2:CLAIMED:INTERFACE:Built-in LAN:0
pa:pa:F:F:F:-1:-1:4294967295:processor:processor:62:72 49 0 0 0 0 4 129 0 0 0 0 0 0 0 0 :0:root.processor:processor:CLAIMED:PROCESSOR:Processor:0
pa:pa:F:F:F:-1:-1:4294967295:memory:memory:63:2 80 31 1 0 0 9 0 0 0 0 0 0 0 0 0 :0:root.memory:memory:CLAIMED:MEMORY:Memory:0

(I trimmed out the SCSI devices.)

The device at iopath 60 is clearly Lasi.  The device at iopath 56 is
_reported as_ Java BC GSC+ Port which is obviously wrong.  Ditto the E45
(claims to have a Uturn-IOA BC GSC+ Port), E35 (U2-IOA BC GSC+ Port)
and E25 (GeckoBOA BC GSC+ Port).  Anyone on this list know what device
was _actually_ used in the E class machines?  And do they have docs
for it?  ;-)

I expect that the bus below 56/ is actually an HP-PB bus because of the
devies it claims to have on it.

-- 
Revolutions do not require corporate support.



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] Problem find devices on the E55 I/O interfaces
Date: Wed, 03 Jul 2002 00:26:53 +0200
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So, the devices below may be the HP-PB bus, as you mentioned.
The resulting question: is this HP-PB bus now transperent ?
Why are the devices not found ?

The point confusing me, is that the PDC boot monitor can display the
hardware paths below the "56", but Linux calling PDC calls cannot see
those devices, independent, if the device type is really know or only
found as unknown.

What is the reason here.

So I thought the interpretion of the data structure is wrong for those
machines ....

Christoph


Matthew Wilcox wrote:
> 
> On Tue, Jul 02, 2002 at 03:25:01PM -0600, Grant Grundler wrote:
> > Christoph Plattner wrote:
> > > Here is one question: Although I a have hardware knowledge, I am
> > > not fix HP terminology here.
> > > Can you give me some hints here with the kewords "main bus",
> > > "lower bus", etc...
> >
> > "central bus" = bus which connects all CPUs with all Memory.
> > On N-class this would be the Merced Bus.
> > On C3000 it's the runway bus.
> > On 712 is the GSC bus.
> 
> E class is probably different somehow.  It has a PCX-L chip in it, so the
> only external bus from that chip is the GSC bus.  Look at the ioscan output
> >from the hwdb:
> 
> :pa:F:F:F:-1:-1:4294967295:bc:root:::0:root:root:CLAIMED:BUS_NEXUS::0
> pa:pa:F:F:F:-1:-1:4294967295:bc:bus_converter:56:80 48 0 71 0 0 12 0 0 0 0 0 0 0 0 0 :1:root.bc:bc:CLAIMED:BUS_NEXUS:Bus Converter:1
> pa:sio:F:F:F:-1:-1:4294967295:ext_bus:scsi3:56/40:0 64 128 132 0 0 59 128 6 0 0 0 43 6 0 2 :0:root.bc.scsi3:scsi3:CLAIMED:INTERFACE:HP 28696A - Wide SCSI ID=7:0
> pa:sio:F:F:F:-1:-1:4294967295:ext_bus:scsi1:56/52:4 64 128 132 0 0 57 128 4 0 0 0 21 136 0 3 :1:root.bc.scsi1:scsi1:CLAIMED:INTERFACE:HP 28655A - SE SCSI ID=7:1pa:sio:F:T:F:-1:76:131072:ext_bus:cent0:56/53:0 64 0 5 0 0 58 128 0 0 0 0 0 0 0 0 :2:root.bc.lpr2:lpr2:CLAIMED:INTERFACE:HP 28655A - Parallel Interface:2
> pa:sio:F:T:F:-1:193:0:tty:mux2:56/56:4 64 128 133 16 0 13 0 3 0 0 0 80 252 0 2 :0:root.bc.mux2:mux2:CLAIMED:INTERFACE:MUX:0
> pa:core:F:F:F:-1:-1:4294967295:ba:core_adapter:60:1 17 128 11 0 0 129 0 0 0 0 0 0 0 0 0 :0:root.bus_adapter:bus_adapter:CLAIMED:BUS_NEXUS:Core I/O Adapter:0
> core:wsio:F:T:F:-1:52:0:lan:lan2:60/6:1 17 128 138 0 0 138 0 2 0 0 0 219 151 0 2 :0:root.bus_adapter.lan2:lan2:CLAIMED:INTERFACE:Built-in LAN:0
> pa:pa:F:F:F:-1:-1:4294967295:processor:processor:62:72 49 0 0 0 0 4 129 0 0 0 0 0 0 0 0 :0:root.processor:processor:CLAIMED:PROCESSOR:Processor:0
> pa:pa:F:F:F:-1:-1:4294967295:memory:memory:63:2 80 31 1 0 0 9 0 0 0 0 0 0 0 0 0 :0:root.memory:memory:CLAIMED:MEMORY:Memory:0
> 
> (I trimmed out the SCSI devices.)
> 
> The device at iopath 60 is clearly Lasi.  The device at iopath 56 is
> _reported as_ Java BC GSC+ Port which is obviously wrong.  Ditto the E45
> (claims to have a Uturn-IOA BC GSC+ Port), E35 (U2-IOA BC GSC+ Port)
> and E25 (GeckoBOA BC GSC+ Port).  Anyone on this list know what device
> was _actually_ used in the E class machines?  And do they have docs
> for it?  ;-)
> 
> I expect that the bus below 56/ is actually an HP-PB bus because of the
> devies it claims to have on it.
> 
> --
> Revolutions do not require corporate support.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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On Wed, Jul 03, 2002 at 12:26:53AM +0200, Christoph Plattner wrote:
> So, the devices below may be the HP-PB bus, as you mentioned.
> The resulting question: is this HP-PB bus now transperent ?
> Why are the devices not found ?
> 
> The point confusing me, is that the PDC boot monitor can display the
> hardware paths below the "56", but Linux calling PDC calls cannot see
> those devices, independent, if the device type is really know or only
> found as unknown.

Ah!  Now I understand why you were so confused ;-)

Yes, PDC tells us about some devices, but not all.  We have to walk
the native busses to find the remaining devices.  What's a native bus?
Uhh.. can't remember, ask grant.  The central bus will be native and
I'm sure GSC is also native.  I believe HP-PB must be native too, since
I seem to remember rbrad finding more devices once he walked the HP-PB
busses on his K class.

-- 
Revolutions do not require corporate support.



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Christoph Plattner wrote:
> So, the devices below may be the HP-PB bus, as you mentioned.
> The resulting question: is this HP-PB bus now transperent ?

The bus converter is "transparent", not the bus.
ie everything we need to know about the secondary bus, we should be able
to read from the bus converter.

> Why are the devices not found ?
> 
> The point confusing me, is that the PDC boot monitor can display the
> hardware paths below the "56", but Linux calling PDC calls cannot see
> those devices, independent, if the device type is really know or only
> found as unknown.

Sounds like the bus walk code is looking at the wrong address
for walking the lower BC port.

I'll point Ryan at the IO ACD (ioacd_v096.pdf only seems to be
available inside HP *sigh*) and he can sort it out.

grant



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Am 02.07.2002 um 21:31:16 +0200 schrieb Ralf Hildebrandt folgendes:

> > # gcc -v
> 
> 3.0.4
> 
> > # ld -v
> 
> 2.12.90.0.9 20020526 
> 
> > --- ./arch/parisc/kernel/power.c     Tue Jul  2 15:17:59 2002
> > +++ ./arch/parisc/kernel/power.c     Tue Jul  2 15:18:12 2002
> 
> Rebuilding now. Yawn.

I rebooted that kernel. No output if I press the power switch.
I checked /proc/sys/kernel/power, it's set to 1

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
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Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Stupid idea: Putting diesel fuel in a gasoline car.
             Substituting corn oil for milk in recipes.
             Attempting to secure a Windows system.




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On Wednesday 03 July 2002 07:24, Ralf Hildebrandt wrote:
> Am 02.07.2002 um 21:31:16 +0200 schrieb Ralf Hildebrandt folgendes:
> > > # gcc -v
> >
> > 3.0.4
> >
> > > # ld -v
> >
> > 2.12.90.0.9 20020526
> >
> > > --- ./arch/parisc/kernel/power.c     Tue Jul  2 15:17:59 2002
> > > +++ ./arch/parisc/kernel/power.c     Tue Jul  2 15:18:12 2002
> >
> > Rebuilding now. Yawn.
>
> I rebooted that kernel. No output if I press the power switch.
> I checked /proc/sys/kernel/power, it's set to 1

Hi Ralf,

are you really using the new kernel ?
The one from CVS, built with "make palo" ?
What does "uname -a" says ?

I have no problems on my 715/64 (which also uses the gecko-style mode)
and c3000, so I really wonder why you suddenly get problems.

Greetings,
Helge



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Am 03.07.2002 um 09:52:55 +0200 schrieb Helge Deller folgendes:

> are you really using the new kernel ?

Yes.

> The one from CVS, built with "make palo" ?

make palo? I used make-kpkg and installed the *.deb using "dpkg -i".
Then I ran palo just to be sure.

> What does "uname -a" says ?

It shows the name of the new kernel.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
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(S)he's dead




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[....]

> > If it is a hp terminal, you can change the emulation. It depends of the
> > terminal type but you can have a look in your user guide or test (but I
> > think that would request severall reboot) the emulation nearest vt100
IIRC.
> >
> > Once you have found the right emulation, try first the more stable
> > 32-bits kernel (IIRC if you unplug ps/2 or usb mouse and keyboard, the
> > kernel will switch to serial console on port 1).
>
> Another good solution could also be to run minicom as console emulation.

So, should i set the terminal type to be VT102 IIRC or just VT102?.. the
terminal is a proper HP Serial Console.

Is it possible to use the STI Console ( Which I believe to be the Graphics
Adapter Console) to start the installation?

Thanks for the help
Alex




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Hi guys,
I have got an old HP workstation (with DDS, CDROM drive) and when I tried to 
install Debian-HPPA 0.9.3 on it makes impossible the installation at the 
point when you have to configure the keyboard. I mean that ( I got and old 
HP-HIL keyboard, you know the one with the RJ45-like connector) I weel can 
see on monitor the choises but I am able only to move the cursor upward or 
downward. Then it hangs!!! my question is: how to procede in this step of 
installation?
Thanx in advance
Ste@linuxabbestia.net



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> 
> I rebooted that kernel. No output if I press the power switch.
> I checked /proc/sys/kernel/power, it's set to 1
> 

Do you see _anything_ in your log files when you press
the power switch?

Could you please post the .config that your kernel 
builds with?

c.




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Am 03.07.2002 um 08:13:06 -0400 schrieb Carlos O'Donell folgendes:

> Do you see _anything_ in your log files when you press
> the power switch?

Nada. Nothing. Zippo. Zilch.
 
> Could you please post the .config that your kernel 
> builds with?

I rebooted this morning after I recompiled a kernel. I added
CONFIG_IOMMU_CCIO=y
but I have yet to see if it turns itself off now when the button is
pressed. Note that it used to work WITHOUT

CONFIG_IOMMU_CCIO=y

Jul  3 11:24:31 gecko kernel: Initializing RT netlink socket
Jul  3 11:24:31 gecko kernel: Gecko-style soft power switch enabled.
Jul  3 11:24:31 gecko kernel: Starting kswapd

Linux gecko 2.4.18-pa46 #1 Wed Jul 3 09:48:44 CEST 2002 parisc unknown


-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
ignorami: n: 
The BOFH art of folding problem lusers into representational shapes.




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From: Ralf Hildebrandt <Ralf.Hildebrandt@charite.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Power Button doesn't turn machine off anymore
Date: Wed, 3 Jul 2002 14:29:10 +0200
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--NGIwU0kFl1Z1A3An
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Am 03.07.2002 um 14:17:38 +0200 schrieb Ralf Hildebrandt folgendes:

> I rebooted this morning after I recompiled a kernel. I added
> CONFIG_IOMMU_CCIO=y
> but I have yet to see if it turns itself off now when the button is
> pressed. Note that it used to work WITHOUT
> 
> CONFIG_IOMMU_CCIO=y
> 
> Jul  3 11:24:31 gecko kernel: Initializing RT netlink socket
> Jul  3 11:24:31 gecko kernel: Gecko-style soft power switch enabled.
> Jul  3 11:24:31 gecko kernel: Starting kswapd
> 
> Linux gecko 2.4.18-pa46 #1 Wed Jul 3 09:48:44 CEST 2002 parisc unknown

Forgot the .config

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Real programmers never work 9 to 5. If any real programmers are around
at 9 am, it's because they were up all night. 


--NGIwU0kFl1Z1A3An
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=".config"

#
# Automatically generated make config: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y

#
# Processor type
#
# CONFIG_PA7100 is not set
# CONFIG_PA7200 is not set
CONFIG_PA7100LC=y
# CONFIG_PA8X00 is not set
CONFIG_PA11=y

#
# General options
#
# CONFIG_SMP is not set
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_KWDB is not set
CONFIG_IOMMU_CCIO=y
CONFIG_GSC=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
# CONFIG_EISA is not set
# CONFIG_ISA is not set
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_SUPERIO=y
CONFIG_PCI_NAMES=y

#
# General setup
#
CONFIG_HOTPLUG=y
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=m
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Parallel port support
#
CONFIG_PARPORT=m
# CONFIG_PARPORT_PC is not set
# CONFIG_PARPORT_AMIGA is not set
# CONFIG_PARPORT_MFC3 is not set
# CONFIG_PARPORT_ATARI is not set
CONFIG_PARPORT_GSC=m
# CONFIG_PARPORT_SUNBPP is not set
# CONFIG_PARPORT_OTHER is not set
# CONFIG_PARPORT_1284 is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_LOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
CONFIG_INET_ECN=y
CONFIG_SYN_COOKIES=y

#
#   IP: Netfilter Configuration
#
CONFIG_IP_NF_CONNTRACK=y
CONFIG_IP_NF_FTP=y
CONFIG_IP_NF_IRC=y
# CONFIG_IP_NF_QUEUE is not set
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_LIMIT=y
CONFIG_IP_NF_MATCH_MAC=y
CONFIG_IP_NF_MATCH_MARK=y
CONFIG_IP_NF_MATCH_MULTIPORT=y
CONFIG_IP_NF_MATCH_TOS=y
CONFIG_IP_NF_MATCH_AH_ESP=m
CONFIG_IP_NF_MATCH_LENGTH=y
CONFIG_IP_NF_MATCH_TTL=y
CONFIG_IP_NF_MATCH_TCPMSS=y
CONFIG_IP_NF_MATCH_STATE=y
CONFIG_IP_NF_MATCH_UNCLEAN=y
CONFIG_IP_NF_MATCH_OWNER=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
# CONFIG_IP_NF_TARGET_MIRROR is not set
CONFIG_IP_NF_NAT=y
CONFIG_IP_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_IP_NF_TARGET_REDIRECT=y
# CONFIG_IP_NF_NAT_SNMP_BASIC is not set
CONFIG_IP_NF_NAT_IRC=y
CONFIG_IP_NF_NAT_FTP=y
# CONFIG_IP_NF_MANGLE is not set
CONFIG_IP_NF_TARGET_LOG=y
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_TARGET_TCPMSS=y
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set

#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# ATA/IDE/MFM/RLL support
#
# CONFIG_IDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set

#
# SCSI support
#
CONFIG_SCSI=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=m
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=y

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
CONFIG_53C700_USE_CONSISTENT=y
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_NCR53C8XX is not set
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_PQS_PDS is not set
# CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set

#
# PCMCIA SCSI adapter support
#
# CONFIG_SCSI_PCMCIA is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=m
# CONFIG_SUNLANCE is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_NET_PCI is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPP_FILTER is not set
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPPOE=m
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# PCMCIA network device support
#
# CONFIG_NET_PCMCIA is not set

#
# Input core support
#
CONFIG_INPUT=m
CONFIG_INPUT_KEYBDEV=m
CONFIG_INPUT_MOUSEDEV=m
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1280
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1024
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_COMPUTONE is not set
# CONFIG_ROCKETPORT is not set
# CONFIG_CYCLADES is not set
# CONFIG_DIGIEPCA is not set
# CONFIG_DIGI is not set
# CONFIG_ESPSERIAL is not set
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
# CONFIG_ISI is not set
# CONFIG_SYNCLINK is not set
CONFIG_N_HDLC=m
# CONFIG_RISCOM8 is not set
# CONFIG_SPECIALIX is not set
# CONFIG_SX is not set
# CONFIG_RIO is not set
# CONFIG_STALDRV is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_PC110_PAD is not set

#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set
# CONFIG_INPUT_NS558 is not set
# CONFIG_INPUT_LIGHTNING is not set
# CONFIG_INPUT_PCIGAME is not set
# CONFIG_INPUT_CS461X is not set
# CONFIG_INPUT_EMU10K1 is not set
CONFIG_INPUT_SERIO=y
# CONFIG_INPUT_SERPORT is not set

#
# Joysticks
#
# CONFIG_INPUT_ANALOG is not set
# CONFIG_INPUT_A3D is not set
# CONFIG_INPUT_ADI is not set
# CONFIG_INPUT_COBRA is not set
# CONFIG_INPUT_GF2K is not set
# CONFIG_INPUT_GRIP is not set
# CONFIG_INPUT_INTERACT is not set
# CONFIG_INPUT_TMDC is not set
# CONFIG_INPUT_SIDEWINDER is not set
# CONFIG_INPUT_IFORCE_USB is not set
# CONFIG_INPUT_IFORCE_232 is not set
# CONFIG_INPUT_WARRIOR is not set
# CONFIG_INPUT_MAGELLAN is not set
# CONFIG_INPUT_SPACEORB is not set
# CONFIG_INPUT_SPACEBALL is not set
# CONFIG_INPUT_STINGER is not set
# CONFIG_INPUT_DB9 is not set
# CONFIG_INPUT_GAMECON is not set
# CONFIG_INPUT_TURBOGRAFX is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# PCMCIA character devices
#
# CONFIG_PCMCIA_SERIAL_CS is not set

#
# HIL support
#
CONFIG_HIL=y
CONFIG_HIL_KBD_BASIC=y

#
# Input support needed for full HIL support
#

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
CONFIG_EXT3_FS=y
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_INTERMEZZO_FS is not set
# CONFIG_NFS_FS is not set
# CONFIG_NFS_V3 is not set
# CONFIG_ROOT_NFS is not set
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
# CONFIG_SUNRPC is not set
# CONFIG_LOCKD is not set
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
# CONFIG_ZISOFS_FS is not set
# CONFIG_ZLIB_FS_INFLATE is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
CONFIG_NLS=y

#
# Native Language Support
#
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set

#
# Console drivers
#

#
# Frame-buffer support
#
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FB_RIVA is not set
# CONFIG_FB_CLGEN is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
CONFIG_FB_STI=y
# CONFIG_FB_MATROX is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FBCON_ADVANCED is not set
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB32=y
CONFIG_FBCON_STI=y
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set
# CONFIG_FBCON_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y

#
# Sound
#
CONFIG_SOUND=m
# CONFIG_SOUND_BT878 is not set
# CONFIG_SOUND_CMPCI is not set
# CONFIG_SOUND_EMU10K1 is not set
# CONFIG_MIDI_EMU10K1 is not set
# CONFIG_SOUND_FUSION is not set
# CONFIG_SOUND_CS4281 is not set
# CONFIG_SOUND_ES1370 is not set
# CONFIG_SOUND_ES1371 is not set
# CONFIG_SOUND_ESSSOLO1 is not set
# CONFIG_SOUND_MAESTRO is not set
# CONFIG_SOUND_MAESTRO3 is not set
# CONFIG_SOUND_ICH is not set
CONFIG_SOUND_HARMONY=m
# CONFIG_SOUND_RME96XX is not set
# CONFIG_SOUND_SONICVIBES is not set
# CONFIG_SOUND_TRIDENT is not set
# CONFIG_SOUND_MSNDCLAS is not set
# CONFIG_SOUND_MSNDPIN is not set
# CONFIG_SOUND_VIA82CXXX is not set
# CONFIG_MIDI_VIA82CXXX is not set
# CONFIG_SOUND_OSS is not set
# CONFIG_SOUND_TVMIXER is not set

#
# USB support
#
# CONFIG_USB is not set

#
# USB Controllers
#
# CONFIG_USB_UHCI is not set
# CONFIG_USB_UHCI_ALT is not set
# CONFIG_USB_OHCI is not set

#
# USB Device Class drivers
#
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_BLUETOOTH is not set
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_HP8200e is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set

#
# USB Human Interface Devices (HID)
#
# CONFIG_USB_HID is not set
# CONFIG_USB_HIDDEV is not set
# CONFIG_USB_KBD is not set
# CONFIG_USB_MOUSE is not set
# CONFIG_USB_WACOM is not set

#
# USB Imaging devices
#
# CONFIG_USB_DC2XX is not set
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_SCANNER is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_HPUSBSCSI is not set

#
# USB Multimedia devices
#

#
#   Video4Linux support is needed for USB Multimedia device support
#

#
# USB Network adaptors
#
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_CATC is not set
# CONFIG_USB_CDCETHER is not set
# CONFIG_USB_USBNET is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set

#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_EMPEG is not set
# CONFIG_USB_SERIAL_FTDI_SIO is not set
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IPAQ is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XA is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XB is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_PL2303 is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OMNINET is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_RIO500 is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

--NGIwU0kFl1Z1A3An--



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$B$*K;$7$$$H$3$m<:NiCW$7$^$9!#(B
$B:#8e%a!<%kITMW$JJ}$O!"$*<j?t$G$9$,2<5-<+F0%a!<%k:o=|MQ(B
$B%"%I%l%9$r%/%j%C%/$9$k$+!"$=$N$^$^JV?.$/$@$5$l$P:#8e%a!<%kCW$7$^$;$s!#(B

$B<+F0%a!<%k:o=|MQ%"%I%l%9(B
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$B%[!<%`%Z!<%8$O$3$3$r%/%j%C%/$7$F$/$@$5$$!#(B
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----- Original Message -----
From: "ste" <stemelchior@inwind.it>
To: <debian-hppa@lists.debian.org>; <parisc-linux@lists.parisc-linux.org>
Sent: Wednesday, July 03, 2002 3:58 PM
Subject: [parisc-linux] HP9000/710


> Hi guys,
> I have got an old HP workstation (with DDS, CDROM drive) and when I tried
to
> install Debian-HPPA 0.9.3 on it makes impossible the installation at the
> point when you have to configure the keyboard. I mean that ( I got and old
> HP-HIL keyboard, you know the one with the RJ45-like connector) I weel can
> see on monitor the choises but I am able only to move the cursor upward or
> downward. Then it hangs!!! my question is: how to procede in this step of
> installation?
    Don't choose any keyboard mapping. Go to the next step.
    It works with default kernel mapping.
    I have 710 too, and ISO 0.9.3 works fine, but without HIL and serial
mouse.
    With the new  kernel pa-46 HIL mouse works but serial still not.
    In the new kernel the keyboard mapping is bad but HIL mouse plays fine.



                                                                    Robert
Boehm






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Subject: Re: [parisc-linux] Power Button doesn't turn machine off anymore
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Ralf Hildebrandt wrote:
> I rebooted this morning after I recompiled a kernel. I added
> CONFIG_IOMMU_CCIO=y

That's not needed for 712/715/B-class/et al.

grant



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Am 03.07.2002 um 10:46:30 -0600 schrieb Grant Grundler folgendes:
> Ralf Hildebrandt wrote:
> > I rebooted this morning after I recompiled a kernel. I added
> > CONFIG_IOMMU_CCIO=y
> 
> That's not needed for 712/715/B-class/et al.

Alas, I came back home today, pressed the button. And the machine
still ran.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
"Memory is like gasoline. You use it up when you are running. Of course you
get it all back when you reboot..." -- Actual explanation obtained from the
Micro$oft help desk.  




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Yes, it seems to me it's a Vvv..WKP (a very very very well known problem), and the precedent answer was judicious: Skip over the keyboard's configuration during the installation.
(In fact, the Debian's Installer (see 'dbootstrap') doesn't hang completely, if you're trying to fix the keymap at this stage. But the keys get random defined)
As soon as Woody is installed on your hard drive and after the first reboot, you can configure your keyboard, running:
'kbdconfig' as root. Good Luck.
(nota: there is a lot of mails about it, in the mail-list of debian-hppa)



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] Power Button doesn't turn machine off anymore
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> > 
> > That's not needed for 712/715/B-class/et al.
> 
> Alas, I came back home today, pressed the button. And the machine
> still ran.
>

Could you please try this out and see if you see anything in your logs :)

c.

--+QahgC5+KEYLbs62
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="power.c.diff"

--- ./arch/parisc/kernel/power.c	Tue Jul  2 15:17:59 2002
+++ ./arch/parisc/kernel/power.c	Wed Jul  3 16:28:47 2002
@@ -55,6 +55,7 @@
 #include <asm/led.h>
 #include <asm/uaccess.h>
 
+#define DEBUG
 
 #ifdef DEBUG
 # define DPRINTK(x) printk x
@@ -123,6 +124,8 @@
 /* check, give feedback and start shutdown after one second */
 static void process_shutdown(void)
 {
+	DPRINTK((KERN_INFO "Processing shutodwn...\n"));
+
 	if (shutdown_timer == 0)
 		DPRINTK((KERN_INFO "Shutdown requested...\n"));
 
@@ -181,7 +184,12 @@
 static void polling_tasklet_func(unsigned long soft_power_reg)
 {
         unsigned long current_status;
-	
+
+#ifdef DEBUG
+	/* CAO July 3, 2002 - Prove we are using gecko tasklet */
+	BUG();
+#endif
+
 	if (!pwrsw_enabled)
 		return;
 
@@ -362,6 +370,8 @@
 	power_remove_procfs();
 	power_tasklet.func = NULL;
 	pdc_soft_power_button(0);
+
+	printk(KERN_INFO "Soft power switch disabled.\n");
 }
 
 module_init(power_init);

--+QahgC5+KEYLbs62--



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On Wednesday 03 July 2002 20:37, dlorin@univ-rennes1.fr wrote:
> zI9@murphy>

>
> Yes, it seems to me it's a Vvv..WKP (a very very very well known problem),
> and the precedent answer was judicious: Skip over the keyboard's
> configuration during the installation. (In fact, the Debian's Installer
> (see 'dbootstrap') doesn't hang completely, if you're trying to fix the
> keymap at this stage. But the keys get random defined) As soon as Woody is
> installed on your hard drive and after the first reboot, you can configure
> your keyboard, running: 'kbdconfig' as root. Good Luck.
> (nota: there is a lot of mails about it, in the mail-list of debian-hppa)

YES I got it. I finally installed the Debian GNU/Linux on my own HP WS (I was 
an HP High-Availability Engineer, but I had always worked on HP9000 Servers 
and I never tried to install Linux on my HP9000/710 the last few days!). I am 
too excited!!! well the base system is well installed now, tonight I am going 
to proceed with the other useful pkgs.
Thanx guyz
Ste



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Am 03.07.2002 um 16:32:27 -0400 schrieb Carlos O'Donell folgendes:

> Could you please try this out and see if you see anything in your logs :)

Applied. Rebuilding now. Will try it out when I'm back home.

> --- ./arch/parisc/kernel/power.c	Tue Jul  2 15:17:59 2002
> +++ ./arch/parisc/kernel/power.c	Wed Jul  3 16:28:47 2002
> @@ -55,6 +55,7 @@
>  #include <asm/led.h>
>  #include <asm/uaccess.h>
>  
> +#define DEBUG
>  
>  #ifdef DEBUG
>  # define DPRINTK(x) printk x
> @@ -123,6 +124,8 @@
>  /* check, give feedback and start shutdown after one second */
>  static void process_shutdown(void)
>  {
> +	DPRINTK((KERN_INFO "Processing shutodwn...\n"));
> +
>  	if (shutdown_timer == 0)
>  		DPRINTK((KERN_INFO "Shutdown requested...\n"));
>  
> @@ -181,7 +184,12 @@
>  static void polling_tasklet_func(unsigned long soft_power_reg)
>  {
>          unsigned long current_status;
> -	
> +
> +#ifdef DEBUG
> +	/* CAO July 3, 2002 - Prove we are using gecko tasklet */
> +	BUG();
> +#endif
> +
>  	if (!pwrsw_enabled)
>  		return;
>  
> @@ -362,6 +370,8 @@
>  	power_remove_procfs();
>  	power_tasklet.func = NULL;
>  	pdc_soft_power_button(0);
> +
> +	printk(KERN_INFO "Soft power switch disabled.\n");
>  }
>  
>  module_init(power_init);


-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
The admin electroculted themselves whilst installing some cabling near the main power cable. Since the admin's body is the only thing keeping the power flowing, the management boarded up the body and pretended they still had a system administrator. 




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Alex Green wrote:
> [....]
> 
> 
>>>If it is a hp terminal, you can change the emulation. It depends of the
>>>terminal type but you can have a look in your user guide or test (but I
>>>think that would request severall reboot) the emulation nearest vt100
>>
> IIRC.
> 
>>>Once you have found the right emulation, try first the more stable
>>>32-bits kernel (IIRC if you unplug ps/2 or usb mouse and keyboard, the
>>>kernel will switch to serial console on port 1).
>>
>>Another good solution could also be to run minicom as console emulation.
> 
> 
> So, should i set the terminal type to be VT102 IIRC or just VT102?.. the
> terminal is a proper HP Serial Console.
>
Sorry I have not any material neither doc to help you right now. Next 
week I will be back to office and more accurate details for your help.

> Is it possible to use the STI Console ( Which I believe to be the Graphics
> Adapter Console) to start the installation?
> 
Let first try to build a build a system wit serial console, than you 
would be able to choose install a more recent kernel 
(ftp://ftp.parisc-linux.org) to see if you can use STI (IIRC Standard 
Text Interface) with your Graphics adapter).

So yes STI give you actually a text interface for your console on your 
Graphical adaptor through fb (Frame Buffer) support.

> Thanks for the help
> Alex
>
See you later,
	Joel




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ok thanks,

i've got a serial term connected, but the when the installer i get screen
corruption, I have tried vt52, vt100, vt102 and hp.  I have the same result
on all.

I've got a HP 700/96 Teminal.

Thanks again
Alex
----- Original Message -----
From: "Joel Soete" <joel.soete@freebel.net>
To: "Alex Green" <alexdgreen@hotmail.com>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Thursday, July 04, 2002 4:51 PM
Subject: Re: [parisc-linux] Installing on C3600


>
>
> Alex Green wrote:
> > [....]
> >
> >
> >>>If it is a hp terminal, you can change the emulation. It depends of the
> >>>terminal type but you can have a look in your user guide or test (but I
> >>>think that would request severall reboot) the emulation nearest vt100
> >>
> > IIRC.
> >
> >>>Once you have found the right emulation, try first the more stable
> >>>32-bits kernel (IIRC if you unplug ps/2 or usb mouse and keyboard, the
> >>>kernel will switch to serial console on port 1).
> >>
> >>Another good solution could also be to run minicom as console emulation.
> >
> >
> > So, should i set the terminal type to be VT102 IIRC or just VT102?.. the
> > terminal is a proper HP Serial Console.
> >
> Sorry I have not any material neither doc to help you right now. Next
> week I will be back to office and more accurate details for your help.
>
> > Is it possible to use the STI Console ( Which I believe to be the
Graphics
> > Adapter Console) to start the installation?
> >
> Let first try to build a build a system wit serial console, than you
> would be able to choose install a more recent kernel
> (ftp://ftp.parisc-linux.org) to see if you can use STI (IIRC Standard
> Text Interface) with your Graphics adapter).
>
> So yes STI give you actually a text interface for your console on your
> Graphical adaptor through fb (Frame Buffer) support.
>
> > Thanks for the help
> > Alex
> >
> See you later,
> Joel
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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Hi there,

I'd like to know if somedy already got througth installing Linux on a
HP9000/E25 server.=20
I'm trying to convinced my boss to do so but I'd like to know possible
limitations or known problems before beginning any installation.

Thanks in advance for your help.

________________________________
Rapha=EBl Semeteys
SchlumbergerSema
Centre de Comp=E9tences en Architecture Technique
16-18 rue Barb=E8s
92126 Montrouge CEDEX France
tel : +33 1 40 92 49 63
fax + 33 1 40 92 49 97





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Humm...

We would so to have a look in more details the terminal setup (baud rate 
9600, flow control ,...) I will give you my setup next week (except if 
some one else could give you those details in the mean time).

Joel


Alex Green wrote:
> ok thanks,
> 
> i've got a serial term connected, but the when the installer i get screen
> corruption, I have tried vt52, vt100, vt102 and hp.  I have the same result
> on all.
> 
> I've got a HP 700/96 Teminal.
> 
> Thanks again
> Alex
> ----- Original Message -----
> From: "Joel Soete" <joel.soete@freebel.net>
> To: "Alex Green" <alexdgreen@hotmail.com>
> Cc: <parisc-linux@lists.parisc-linux.org>
> Sent: Thursday, July 04, 2002 4:51 PM
> Subject: Re: [parisc-linux] Installing on C3600
> 
> 
> 
>>
>>Alex Green wrote:
>>
>>>[....]
>>>
>>>
>>>
>>>>>If it is a hp terminal, you can change the emulation. It depends of the
>>>>>terminal type but you can have a look in your user guide or test (but I
>>>>>think that would request severall reboot) the emulation nearest vt100
>>>>
>>>IIRC.
>>>
>>>
>>>>>Once you have found the right emulation, try first the more stable
>>>>>32-bits kernel (IIRC if you unplug ps/2 or usb mouse and keyboard, the
>>>>>kernel will switch to serial console on port 1).
>>>>
>>>>Another good solution could also be to run minicom as console emulation.
>>>
>>>
>>>So, should i set the terminal type to be VT102 IIRC or just VT102?.. the
>>>terminal is a proper HP Serial Console.
>>>
>>
>>Sorry I have not any material neither doc to help you right now. Next
>>week I will be back to office and more accurate details for your help.
>>
>>
>>>Is it possible to use the STI Console ( Which I believe to be the
>>
> Graphics
> 
>>>Adapter Console) to start the installation?
>>>
>>
>>Let first try to build a build a system wit serial console, than you
>>would be able to choose install a more recent kernel
>>(ftp://ftp.parisc-linux.org) to see if you can use STI (IIRC Standard
>>Text Interface) with your Graphics adapter).
>>
>>So yes STI give you actually a text interface for your console on your
>>Graphical adaptor through fb (Frame Buffer) support.
>>
>>
>>>Thanks for the help
>>>Alex
>>>
>>
>>See you later,
>>Joel
>>
>>
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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Le jeudi 4 juillet 2002, =E0 05:31 , SEMETEYS Raphael - MTR=20
( rsemeteys@mtr.sema.slb.com ) a =E9crit :

> Hi there,
>
> I'd like to know if somedy already got througth installing Linux on a
> HP9000/E25 server.
Well, nothing that I heard of.
Anyway, Christoph Plattner is working on his E55, but with no real=20
success (eh Christoph ? :)
We are actually working on E35, with nothing more than booting the=20
kernel via network, and no real success.
> I'm trying to convinced my boss to do so but I'd like to know possible
> limitations or known problems before beginning any installation.
errr; looks like E-class wasn't a good choice :)
It's not supported actually, and fwiw not a priority


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Hello all,

after finding that there is now a Linux for HP-PA-RISC, I downloaded the
CD and tried to install on my HP9000-C110. Install went fine (apart from
some unmotivied kernel panics and issues with my other Compaq CDROM
drive).
I an stuck with three problems, for one my german keyboard doesn't work
as expected (the <>| key in particvular). I should get round that with
kbdconfig as suggested in another mail, but I diddn't fint that program
installed. ;-( Since this is my first ever debian install, it's more a
problem of finding and reading the docs to the packet manager and some
more general info about debian systems.

More annoying is the system clock, that always puts me back to 1970. Set
the date, wrote it back to CMOS, checked it, rebooted and was back into
the seventies. The device /dev/rtc exists with the suggested major/minor
numbers from the FAQ. At this time, I enter date time after bootup like
with my first PC. ;-)

I cannot get X to run. "No screens found". I tried the good old
xf86config setup, but don't realy know what to enter for a video card
(thinking that's the problem). Help on that is also appreciated. Is
there any tool to identify hardware in general?

Juergen

-- 
===========================================     __   _
Juergen Braukmann juergen.braukmann@gmx.de| -o)/ /  (_)__  __ ____  __
Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
===========================================_\_v __/_/_//_/\_,_/ /_/\_\



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Juergen Braukmann wrote:
> I an stuck with three problems, for one my german keyboard doesn't work
> as expected (the <>| key in particvular). I should get round that with
> kbdconfig as suggested in another mail, but I diddn't fint that program
> installed. ;-( Since this is my first ever debian install, it's more a
> problem of finding and reading the docs to the packet manager and some
> more general info about debian systems.

"apt-get" is your friend.
Once upon a time, "apt-cache search <pgm>" would tell me which package
contained the program. But I've forgotten the explanation of why
that stopped working.

> More annoying is the system clock, that always puts me back to 1970. Set
> the date, wrote it back to CMOS, checked it, rebooted and was back into
> the seventies. The device /dev/rtc exists with the suggested major/minor
> numbers from the FAQ. At this time, I enter date time after bootup like
> with my first PC. ;-)

Could the battery be dead?
You might take that out and measure it with a volt meter.

> I cannot get X to run. "No screens found". I tried the good old
> xf86config setup, but don't realy know what to enter for a video card
> (thinking that's the problem). Help on that is also appreciated. Is
> there any tool to identify hardware in general?

www.parisc-linux.org has lots of FAQ info and HOW-TOs.
Look at the boot console output to determine which type
of graphics card you have and start hunting from there.

grant



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On Thu, Jul 04, 2002 at 03:28:43PM +0000, Joel Soete wrote:
> Humm...
> 
> We would so to have a look in more details the terminal setup (baud rate 
> 9600, flow control ,...) I will give you my setup next week (except if 
> some one else could give you those details in the mean time).

Typically 9600 baud, 8 bit, no parity.  I usually go for no flow
control, and it hasn't caused me any problems.  vt100 or vt102 should be
fine.

What sort of screen corruption do you get?  First screen should be the
release notes.  Is it completely random, or mostly correct, or what?

Do you have a PC running linux handy?  Many people run minicom as a
terminal emulator successfully.

Richard




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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: [parisc-linux] user_mode() right?
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Hi all,
top currently reports the following on my a500:
CPU states:   0.3% user,  99.7% system,   0.0% nice,   0.0% idle

while the system is idle. ie idle time is being accounted
to the system time.

While trying to understand this, I ran across the following comment:

/* XXX should we use iaoq[1] or iaoq[0] ? */
#define user_mode(regs)                 (((regs)->iaoq[0] &  3) ? 1 : 0)

Is iaoq[0] correct?

thanks
grant



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Grant Grundler schrieb:
> 
Hi Grant

> Juergen Braukmann wrote:
> > I an stuck with three problems, for one my german keyboard doesn't work
> > as expected (the <>| key in particvular). I should get round that with
> > kbdconfig as suggested in another mail, but I diddn't fint that program
> > installed. ;-( Since this is my first ever debian install, it's more a
> > problem of finding and reading the docs to the packet manager and some
> > more general info about debian systems.
> 
> "apt-get" is your friend.
> Once upon a time, "apt-cache search <pgm>" would tell me which package
> contained the program. But I've forgotten the explanation of why
> that stopped working.
> 

OK, I will look that one up. 

> > More annoying is the system clock, that always puts me back to 1970. Set
> > the date, wrote it back to CMOS, checked it, rebooted and was back into
> > the seventies. The device /dev/rtc exists with the suggested major/minor
> > numbers from the FAQ. At this time, I enter date time after bootup like
> > with my first PC. ;-)
> 
> Could the battery be dead?
> You might take that out and measure it with a volt meter.
> 

I think the battery is OK. HP-UX worked well, but I hadn't used it for a
time and didn't check. I should rule out that possibility before start
to cry. ;-) (i.e. My network connection started to work perfect after I
plugged the other machine back to the coax cable... ;-))
But things looked like that I can set the CMOS time from the boot
program (active before realy booting something) and linux telling me
something about garbled time afterwards. My suspicion is that the stored
format differs from that hwclock -w tried to use.

> > I cannot get X to run. "No screens found". I tried the good old
> > xf86config setup, but don't realy know what to enter for a video card
> > (thinking that's the problem). Help on that is also appreciated. Is
> > there any tool to identify hardware in general?
> 
> www.parisc-linux.org has lots of FAQ info and HOW-TOs.
> Look at the boot console output to determine which type
> of graphics card you have and start hunting from there.
> 

well, hunting starts with  that pice of fragment:

CORAL SGC Graphics
1280x1024-32 framebuffer

and that is not listed amongst the cards. So I add some more questions
to that:
when I get system info at the boot program, I see that I'v got no EISA
devices. The graphics card looks propetary -from the connectors side of
view-. Are the slots EISA slots? In what case, I'd fetch an old ELSA
Winner 2000 EISA from work and try with that. At least, I know how to
configure these.

Anyway, this has to wait to the next week, since I am off over the
weekend. ;-)


Juergen

-- 
===========================================     __   _
Juergen Braukmann juergen.braukmann@gmx.de| -o)/ /  (_)__  __ ____  __
Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
===========================================_\_v __/_/_//_/\_,_/ /_/\_\



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ste <stemelchior@inwind.it> writes:

> YES I got it. I finally installed the Debian GNU/Linux on my own HP
> WS (I was an HP High-Availability Engineer, but I had always worked
> on HP9000 Servers and I never tried to install Linux on my
> HP9000/710 the last few days!). I am too excited!!! well the base
> system is well installed now, tonight I am going to proceed with the
> other useful pkgs. 

I went to the Linux Porters' booth at LinuxTag 2002 in Karlsruhe with
a 710, but we were not able to install the system. The installer
booted fine, but it hung when it tried to access the hard drive.

-Hilko




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This is a multi-part message in MIME format.
--------------D65508782C25C4AEBFAFAF66
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	Hi
I'm fighting with pdc calls since two weeks now. And I think I've nearly succeded to understand how it works. But now I have a problem. I've retrieve the modules hpa, so before using it, I need to
retrieve the spa and io_entry code in order to use it. For doing it I've wrote this, it is nearly the same thing than the function pdc_iodc_read():


static unsigned long pdc_result[32] __attribute__ ((aligned (8)));
static unsigned long pdc_result2[32] __attribute__ ((aligned (8)));

/* Get spa for this module */
hpa=dump_parms->hpa;
index=0;
iodc_data_size=32;

ret = mem_pdc_call(PDC_IODC, PDC_IODC_READ, __pa(pdc_result), hpa, index, __pa(pdc_result2), iodc_data_size);
convert_to_wide(pdc_result);
bytecnt = pdc_result[0];
memcpy(dump_iodc_data, pdc_result2, iodc_data_size);

The result is always "ret = -3" -> cannot complete call without error.
Do I forget anything (probably). Do I have to prevent interruption ? Do I have to modify PSW ?

	thanks.
 
-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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On Fri, Jul 05, 2002 at 01:55:29AM -0600, Grant Grundler wrote:
> While trying to understand this, I ran across the following comment:
> 
> /* XXX should we use iaoq[1] or iaoq[0] ? */
> #define user_mode(regs)                 (((regs)->iaoq[0] &  3) ? 1 : 0)
> 
> Is iaoq[0] correct?

I'd've thought so.  iaoq[0] is `what instruction are we executing' and
iaoq[1] is `where are we going next'.  the only time they're going to
be different is when we're about to enter the kernel or about to return
to userspace.  in either case, it's nothing more than an out-by-one
error at worst.

-- 
Revolutions do not require corporate support.



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Subject: Re: [parisc-linux] mem_pdc_call: how using it exactly.
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On Fri, Jul 05, 2002 at 12:53:31PM +0200, Bruno Vidal wrote:
> static unsigned long pdc_result[32] __attribute__ ((aligned (8)));
> static unsigned long pdc_result2[32] __attribute__ ((aligned (8)));
> 
> /* Get spa for this module */
> hpa=dump_parms->hpa;
> index=0;
> iodc_data_size=32;
> 
> ret = mem_pdc_call(PDC_IODC, PDC_IODC_READ, __pa(pdc_result), hpa, index, __pa(pdc_result2), iodc_data_size);
> convert_to_wide(pdc_result);
> bytecnt = pdc_result[0];
> memcpy(dump_iodc_data, pdc_result2, iodc_data_size);
> 
> The result is always "ret = -3" -> cannot complete call without error.
> Do I forget anything (probably). Do I have to prevent interruption ? Do I have to modify PSW ?

more prosaically, i think iodc_data_size should be 32 * sizeof(long),
ie size in bytes, not number of longs.

but why code this up yourself rather than use pdc_iodc_read?

-- 
Revolutions do not require corporate support.



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About the iodc_data_size, in the documentation it is describe as: "count bytes in length".
For example in drivers/scsi/zalon7xx.c:
status = pdc_iodc_read(&pdc_result, hpa, 0, &iodc_data, 32 ); 
-> it is 32.
So If I want the 32 first bytes, it should be 32.
Now why doing it myself, because I don't want to use spinlock while dumping, and pdc_iodc_read
use spinlock. Perhaps, it is not a good solution, what do you think about using spinlock while
dumping ?

Matthew Wilcox wrote:
> 
> On Fri, Jul 05, 2002 at 12:53:31PM +0200, Bruno Vidal wrote:
> > static unsigned long pdc_result[32] __attribute__ ((aligned (8)));
> > static unsigned long pdc_result2[32] __attribute__ ((aligned (8)));
> >
> > /* Get spa for this module */
> > hpa=dump_parms->hpa;
> > index=0;
> > iodc_data_size=32;
> >
> > ret = mem_pdc_call(PDC_IODC, PDC_IODC_READ, __pa(pdc_result), hpa, index, __pa(pdc_result2), iodc_data_size);
> > convert_to_wide(pdc_result);
> > bytecnt = pdc_result[0];
> > memcpy(dump_iodc_data, pdc_result2, iodc_data_size);
> >
> > The result is always "ret = -3" -> cannot complete call without error.
> > Do I forget anything (probably). Do I have to prevent interruption ? Do I have to modify PSW ?
> 
> more prosaically, i think iodc_data_size should be 32 * sizeof(long),
> ie size in bytes, not number of longs.
> 
> but why code this up yourself rather than use pdc_iodc_read?
> 
> --
> Revolutions do not require corporate support.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Cc: <dlorin@univ-rennes1.fr>,
	"Erling A. Jacobsen" <linuxcub@email.dk>,
	Jan Heumann <jheumann@fonts.de>,
	Paolo Ambrosio <blues@iglu.cc.uniud.it>,
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To: Bengen <bengen@vdst-ka.inka.de>
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Well, the first error I made (why didn't I read the manual, always RTFM, i.e. 
ReadThatF**ingManual) was that I didn't partitioned the HDD in the right 
ways: so I did the second time I tried to install the Workstation. Imean you 
must divide the HDD in at least 3 partition (for istance, /dev/sda1 for 
primary where to put OS, /dev/sda5 swap and finally /dev/sda2 where you MUST 
set the type to "F0", the PALO's dedicated partition).
When I reboot the system after the first try I red on the monitor: "Hard 
booted" and it hanged. When I correctly partitioned the HDD, install the base 
and rebooted the system, it finally booted up and everything went well!
Did you do the correct steps to partition the HDD, set the partition types 
and so on?
Then did you skip the keyboard configuration during the base installation, as 
mentioned in the previous mals on this ML?
Ste

> I went to the Linux Porters' booth at LinuxTag 2002 in Karlsruhe with
> a 710, but we were not able to install the system. The installer
> booted fine, but it hung when it tried to access the hard drive.
>
> -Hilko



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	Hi
I've just read that PDC call need some specific PSW state.
But I didnt' find any function to manipulate PSW (easely).
Does exit any function to change some bits in the PSW ?

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Bruno Vidal wrote:
> About the iodc_data_size, in the documentation it is describe as: "count byte
>   s in length".

Yes.  Gecko ERS says ARG6 is "size of memaddr in bytes".

> For example in drivers/scsi/zalon7xx.c:
> status = pdc_iodc_read(&pdc_result, hpa, 0, &iodc_data, 32 ); 
> -> it is 32.
> So If I want the 32 first bytes, it should be 32.

        status = pdc_iodc_read(&pdc_result, hpa, 0, &iodc_data, 32 );
	if (status == PDC_RET_OK) {
		clock = (int) pdc_result[16];
	} else {
	....

This looks wrong.  pdc_result[16] probably contains garbage.

> Now why doing it myself, because I don't want to use spinlock while
> dumping, and pdc_iodc_read use spinlock. Perhaps, it is not a good
> solution, what do you think about using spinlock while dumping ?

I would rather see the dump code avoid the spinlock and
replicate the pdc calls. ie assume PDC calls can crash the
system too. But if this is a PITA, re-initialize the lock and use the
regular calls.

grant



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Am 03.07.2002 um 16:32:27 -0400 schrieb Carlos O'Donell folgendes:

> Could you please try this out and see if you see anything in your logs :)

Nothing. Nothing at all.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
This is supposed to be a happy occasion. Let's not bicker and argue
about who killed who."            -- From Monty Python's Holy Grail




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Hello !

It is NOT correct. I have success ! But ONLY as DISKLESS server.

Botting via network and using the PDC console works really well.
The machine is quite fast and in this setup stable.
I run the full SID debian on this machine, it can execute near
all executables, even X applications run (remote of course !).

Only three devices are not supported:
- MUX 8-way serial (except the PDC console using this polling 
	PDC driver)
- Parallel interface
- SCSI disks (which makes this machine to a diskless server !?!)

With getting more documentations and experiences, I will further
work on this (in background load, I am only hacking in my private
spare time ...).

First I will start on SCSI, Ryan works on the MUX of a K-serie
server, and I will try to port this driver. Every help is
welcome. I think we are a "bigger" group now, wishing E-class
support for Linux !!

Christoph


Thibaut VARENE wrote:
> 
> Le jeudi 4 juillet 2002,  05:31 , SEMETEYS Raphael - MTR
> ( rsemeteys@mtr.sema.slb.com ) a crit :
> 
> > Hi there,
> >
> > I'd like to know if somedy already got througth installing Linux on a
> > HP9000/E25 server.
> Well, nothing that I heard of.
> Anyway, Christoph Plattner is working on his E55, but with no real
> success (eh Christoph ? :)
> We are actually working on E35, with nothing more than booting the
> kernel via network, and no real success.
> > I'm trying to convinced my boss to do so but I'd like to know possible
> > limitations or known problems before beginning any installation.
> errr; looks like E-class wasn't a good choice :)
> It's not supported actually, and fwiw not a priority
> 
> Thibaut VARENE
> PA/Linux ESIEE Team
> http://pateam.esiee.fr/
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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My installation was done in an other way.

I tried the first debian install (0.9.3x image) on the 712. Later on
I copied the file system to my server to use it as NFS and NFS-Root
server. My E55 boots this image now.

But as I heard, it is possible with my PDC driver to do a full 
installation on those machine. I never tried this up to now.

I also heard, that there is a ready boot image using the PDC driver
for such an installation.

Christoph


"SEMETEYS Raphael - MTR ( rsemeteys@mtr.sema.slb.com )" wrote:
> 
> Hi there,
> 
> I'd like to know if somedy already got througth installing Linux on a
> HP9000/E25 server.
> I'm trying to convinced my boss to do so but I'd like to know possible
> limitations or known problems before beginning any installation.
> 
> Thanks in advance for your help.
> 
> ________________________________
> Raphal Semeteys
> SchlumbergerSema
> Centre de Comptences en Architecture Technique
> 16-18 rue Barbs
> 92126 Montrouge CEDEX France
> tel : +33 1 40 92 49 63
> fax + 33 1 40 92 49 97
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at




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Am 05.07.2002 um 19:59:20 +0200 schrieb Ralf Hildebrandt folgendes:
> Am 03.07.2002 um 16:32:27 -0400 schrieb Carlos O'Donell folgendes:
> 
> > Could you please try this out and see if you see anything in your logs :)
> 
> Nothing. Nothing at all.

I went to pa48 today, still with the patches to power.c you sent me.
There are no log entries. To make sure I get all logging, I use:

*.*   /var/log/debug

Nevertheless, no logging. Does the patch to power.c output it's data
to the console?

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
"All programmers are playwrights and all computers are lousy actors."  -Anon.




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This appears to be due to local_irq_count(cpu) always being 2 when
update_process_times() is called.  Looks like we call irq_enter() twice,
once in do_irq() and again in smp_do_timer().  Maybe we can just remove
the irq_enter/exit calls from smp_do_timer()?

Richard




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Power Button doesn't turn machine off anymore
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I tested this today.  B180 2.4.18-pa48 works ok.  712 2.4.18-pa48 the
button has no effect.  712 2.4.17-pa32 button works ok.

Richard




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Am 06.07.2002 um 21:54:48 +0100 schrieb Richard Hirst folgendes:
> I tested this today.  B180 2.4.18-pa48 works ok.  712 2.4.18-pa48 the
> button has no effect.  712 2.4.17-pa32 button works ok.

Most excellent -- since I'm running a 712 2.4.18-pa48 as well...

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Irix is about as stable as a one-legged drunk with hypothermia in a
four- hundred mile wind, balancing on a banana peel on a greased
cookie sheet -- When someone throws him an elephant with bad breath
and a worse temper. 




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On Sat, Jul 06, 2002 at 04:22:40PM -0600, Richard Hirst wrote:
> Make power switch work on 712 again


RCS file: /var/cvs/linux/arch/parisc/kernel/time.c,v
retrieving revision 1.24
diff -u -r1.24 time.c
--- arch/parisc/kernel/time.c   2002/06/26 22:20:32     1.24
+++ arch/parisc/kernel/time.c   2002/07/06 22:21:58
@@ -116,7 +116,7 @@
 #endif
 
        /* check soft power switch status */
-       if (cpu == 0 && !atomic_read(&led_tasklet.count))
+       if (cpu == 0 && !atomic_read(&power_tasklet.count))
                tasklet_schedule(&power_tasklet);
 }
 




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From: sven schnelle <schnelle@kabelleipzig.de>
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hello,

Im writing on a floppy driver for my 712 and want to use kdb,

but when i try to compile the kernel with it, i get errors:

kdb/break.h: No such file or directory
kdb/kgdb_types.h: No such file or directory
kdb/kgdb_machine.h: No such file or directory
kdb/trap.h: No such file or directory

does anybody know where i can get this files ?.

bye
     sven






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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Alan Cox wrote:
> With these ifdefs for ARM and parisc maybe
> 
> 	arg = IRDA_MODEM_BITS;
> 
> and sticking tha tin the header would be good ?

A few monthes later...here's a patch that does this for i386 and parisc.
Should I commit this to the parisc-linux CVS?

(also available as ftp://ftp.parisc-linux.org/patches/diff.irtty_bits)

grant


Index: drivers/net/irda/irtty.c
===================================================================
RCS file: /var/cvs/linux/drivers/net/irda/irtty.c,v
retrieving revision 1.8
diff -u -p -r1.8 irtty.c
--- drivers/net/irda/irtty.c	2001/11/09 23:36:06	1.8
+++ drivers/net/irda/irtty.c	2002/07/07 06:30:36
@@ -760,14 +760,11 @@ static int irtty_set_dtr_rts(struct net_
 	struct irtty_cb *self;
 	struct tty_struct *tty;
 	mm_segment_t fs;
-	int arg = 0;
+	int arg = TIOCM_MODEM_BITS;
 
 	self = (struct irtty_cb *) dev->priv;
 	tty = self->tty;
 
-#ifdef TIOCM_OUT2 /* Not defined for ARM */
-	arg = TIOCM_OUT2;
-#endif
 	if (rts)
 		arg |= TIOCM_RTS;
 	if (dtr)
Index: include/asm-i386/termios.h
===================================================================
RCS file: /var/cvs/linux/include/asm-i386/termios.h,v
retrieving revision 1.3
diff -u -p -r1.3 termios.h
--- include/asm-i386/termios.h	2001/07/05 21:38:41	1.3
+++ include/asm-i386/termios.h	2002/07/07 06:30:36
@@ -37,6 +37,8 @@ struct termio {
 #define TIOCM_OUT2	0x4000
 #define TIOCM_LOOP	0x8000
 
+#define TIOCM_MODEM_BITS       TIOCM_OUT2      /* IRDA support */
+
 /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
 
 /* line disciplines */
Index: include/asm-parisc/termios.h
===================================================================
RCS file: /var/cvs/linux/include/asm-parisc/termios.h,v
retrieving revision 1.6
diff -u -p -r1.6 termios.h
--- include/asm-parisc/termios.h	2001/07/11 17:20:32	1.6
+++ include/asm-parisc/termios.h	2002/07/07 06:30:36
@@ -37,6 +37,9 @@ struct termio {
 #define TIOCM_OUT2	0x4000
 #define TIOCM_LOOP	0x8000
 
+/* IRDA support - PA-RISC uses OUT1 as hardware flow control bit. */
+#define TIOCM_MODEM_BITS        (TIOCM_OUT2 | TIOCM_OUT1)
+
 /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
 
 /* line disciplines */



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Subject: [parisc-linux] show_stack() rewrite
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Hi all,

Based on questions from Carlos, I've rewritten (but not tested)
the show_stack() function that dumps stack and registers.
Since, I'd really like to focus on sba_iommu, tg3, and eventually
cpqfc, could someone else review and/or test this?

Basically, I've ditched all the non-functional Interrupt Stack support
that was confusing most of us. Sorry, jsm, I don't know how to make
the interrupt stack work though I agree it's a good feature.

diff is also available from
	ftp://ftp.parisc-linux.org/patches/diff.show_stack

thanks,
grant

Index: arch/parisc/kernel/traps.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/traps.c,v
retrieving revision 1.63
diff -u -p -r1.63 traps.c
--- arch/parisc/kernel/traps.c	2002/04/13 22:12:27	1.63
+++ arch/parisc/kernel/traps.c	2002/07/07 06:29:09
@@ -146,56 +146,17 @@ static void dump_stack(unsigned long fro
 
 void show_stack(struct pt_regs *regs)
 {
-#if 1
 	/* If regs->sr[7] == 0, we are on a kernel stack */
 	if (regs->sr[7] == 0) {
-
 		unsigned long sp = regs->gr[30];
-		unsigned long cr30;
-		unsigned long cr31;
-		unsigned long stack_start;
-		struct pt_regs *int_regs;
-
-		cr30 = mfctl(30);
-		cr31 = mfctl(31);
-		stack_start = sp & ~(ISTACK_SIZE - 1);
-		if (stack_start == cr31) {
-		    /*
-		     * We are on the interrupt stack, get the stack
-		     * pointer from the first pt_regs structure on
-		     * the interrupt stack, so we can dump the task
-		     * stack first.
-		     */
-
-		    int_regs = (struct pt_regs *)cr31;
-		    sp = int_regs->gr[30];
-		    stack_start = sp & ~(INIT_TASK_SIZE - 1);
-		    if (stack_start != cr30) {
-			printk(KERN_CRIT "WARNING! Interrupt-Stack pointer and cr30 do not correspond!\n");
-			printk(KERN_CRIT "Dumping virtual address stack instead\n");
-			dump_stack((unsigned long)__va(stack_start), (unsigned long)__va(sp), 0);
-		    } else {
-			dump_stack(stack_start, sp, 0);
-		    };

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From: Ryo Murakawa <FZZ01471@nifty.ne.jp>
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Subject: [parisc-linux] How to change the keymap from jp106 to us101
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Hi, My name is Ryo.
I have first time to post here.

I have used paris-linux for 6 months on C200.
Today I got the us101 keyboard. And I changed my c200's keyboard.
I could use us101 keymap on X because I knew how to change the file
called XF86Config-4. But I can not use us101 keymap on console.
When I installed parisc-linux in C200, I had read the instruction about
kbdconfig command. But I can not find this. Now I want to change the
keymap on console. Please tell me how to change
my machine's keymap.



Sincerly yours.

-------
Ryo Murakawa.




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On Sun, 2002-07-07 22:43:52 +0900, Ryo Murakawa <FZZ01471@nifty.ne.jp>
wrote in message <3D284598.8070507@nifty.ne.jp>:

> When I installed parisc-linux in C200, I had read the instruction about
> kbdconfig command. But I can not find this. Now I want to change the
> keymap on console. Please tell me how to change
> my machine's keymap.

dpkg-reconfigure console-common

MfG, JBG

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On Sat, Jul 06, 2002 at 10:27:52PM +0100, Richard Hirst wrote:
> On Sat, Jul 06, 2002 at 04:22:40PM -0600, Richard Hirst wrote:
> > Make power switch work on 712 again

I'll give it a spin.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
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Subject: Re: [parisc-linux] smp kernels at 100% system 0% idle
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Richard Hirst wrote:
> This appears to be due to local_irq_count(cpu) always being 2 when
> update_process_times() is called.  Looks like we call irq_enter() twice,
> once in do_irq() and again in smp_do_timer().  Maybe we can just remove
> the irq_enter/exit calls from smp_do_timer()?

Followup:
  -pa50 has the extra irq_enter/exit calls removed and "top" now seems
  to report reasonable values for user/system/idle!

My A500-44 (Dual CPU, CONFIG_SMP=y) has been building kernels
in a loop all night.

The only quirk was eth0 (tulip) dropped out around 7:21 AM (PST) today.
I didn't see anything related in dmesg output and here is the
"ifconfig" output:
eth0      Link encap:Ethernet  HWaddr 00:30:6E:03:79:9F  
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:109069 errors:1 dropped:0 overruns:0 frame:0
          TX packets:109273 errors:3 dropped:0 overruns:0 carrier:3
          collisions:0 txqueuelen:100 
          RX bytes:7325550 (6.9 MiB)  TX bytes:29846310 (28.4 MiB)
          Interrupt:128 

Anyway, I ifconfig'd the interface again, logged in again, and restarted
the clean/oldconfig/dep/vmlinux/modules loop again. (uses -j4 on
the last three steps). It's running happily again now.

thanks again Richard!
grant



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Am 07.07.2002 um 18:56:23 +0200 schrieb Ralf Hildebrandt folgendes:
> On Sat, Jul 06, 2002 at 10:27:52PM +0100, Richard Hirst wrote:
> > On Sat, Jul 06, 2002 at 04:22:40PM -0600, Richard Hirst wrote:
> > > Make power switch work on 712 again
> 
> I'll give it a spin.

Works.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
There are no viruses. 
It's antibodies against people too stupid to survive on the Internet.




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Hello,
anybody has PDF with specification of this server?
Is there any PCI ot EISA slots???
I can't compile kernel stable...

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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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> 
> hello,
> 
> Im writing on a floppy driver for my 712 and want to use kdb,
> 
> but when i try to compile the kernel with it, i get errors:
> 
> kdb/break.h: No such file or directory
> kdb/kgdb_types.h: No such file or directory
> kdb/kgdb_machine.h: No such file or directory
> kdb/trap.h: No such file or directory
> 
> does anybody know where i can get this files ?.
> 
> bye
>     sven

If you haven't already done so, I would recommend getting 
a kdb patched source tree from cvs.parisc-linux.org

There is a 'kdb_v21' branch for the 'linux' tree.

cvs co -rkdb_v21 linux

Please take a look at:
http://cvs.parisc-linux.org

Note: That I'm currently working on kdb's stability...
so you might not get something that is as happy as you
expect from other platofrms.

c.

p.s. Remember to get use the recommended .cvsrc! :)




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"Stephan Trajkoff" wrote:
> Hello,
> anybody has PDF with specification of this server?

All sorts of manuals for K-class here:
	http://docs.hp.com/hpux/hw/index.html

> Is there any PCI ot EISA slots???

No.

> I can't compile kernel stable...

Can you post the error messages and describe the steps you used to build?

grant



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Giles Gamon wrote:
...
> I read your posting (including source code with great interest);
> http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2002-January/030292.
>   html
...

> HP have (probably for commercial reasons) removed the easy way of changing 
> the host adapters SCSI ID.

No. You can change it from firmware prompt on most parisc machines.
interrupt the boot process and on newer machines one can enter "co" to
get to the configuration menu.

> The SCSI INITIATOR ID is stored in a motherboard NVRAM (or similar) and 
> loaded by the motherboard BIOS, the OS then loads and uses it but has no 
> way of changing it.

That's correct.
Firmware folks don't like OS writing stuff in their space.

> Are you aware of any potential dangers if we should want to switch back to 
> running HP-UX, i.e. would need changing back or checksums on the memory?

PDC doesn't care which OS is running.
You should be able to just install HPUX and everything
should work normally. AFAIK, Installing HPUX will only change the
primary boot path that is stored NVRAM (using PDC calls, not by
directly writing it).

grant



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Hello,
TEAM from esiee.fr told me that it is common SMP problem...
after heavy compilation, 'w' and 'ps ax' don't work





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On Sun, Jul 07, 2002 at 08:11:47PM -0400, Carlos O'Donell wrote:
> > 
> > hello,
> > 
> > Im writing on a floppy driver for my 712 and want to use kdb,
> > 
> > but when i try to compile the kernel with it, i get errors:
> > 
> > kdb/break.h: No such file or directory
> > kdb/kgdb_types.h: No such file or directory
> > kdb/kgdb_machine.h: No such file or directory
> > kdb/trap.h: No such file or directory
> > 
> > does anybody know where i can get this files ?.
> > 
> > bye
> >     sven
> 
> If you haven't already done so, I would recommend getting 
> a kdb patched source tree from cvs.parisc-linux.org
> 
> There is a 'kdb_v21' branch for the 'linux' tree.
> 
> cvs co -rkdb_v21 linux
> 
> Please take a look at:
> http://cvs.parisc-linux.org
> 
> Note: That I'm currently working on kdb's stability...
> so you might not get something that is as happy as you
> expect from other platofrms.

It's a little confusing that there's mention of KDB in the
non-KDB enabled kernel. Under General Options it says 
"Kernel Debugger support" which seems (to me) to have the
sole function of generating the above messages :)

patrick




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--------------040502000209020904040806
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Patrick Caulfield wrote:

>On Sun, Jul 07, 2002 at 08:11:47PM -0400, Carlos O'Donell wrote:
>  
>
>>>hello,
>>>
>>>Im writing on a floppy driver for my 712 and want to use kdb,
>>>
>>>but when i try to compile the kernel with it, i get errors:
>>>
>>>kdb/break.h: No such file or directory
>>>kdb/kgdb_types.h: No such file or directory
>>>kdb/kgdb_machine.h: No such file or directory
>>>kdb/trap.h: No such file or directory
>>>
>>>does anybody know where i can get this files ?.
>>>
>>>bye
>>>    sven
>>>      
>>>
>>If you haven't already done so, I would recommend getting 
>>a kdb patched source tree from cvs.parisc-linux.org
>>
>>There is a 'kdb_v21' branch for the 'linux' tree.
>>
>>cvs co -rkdb_v21 linux
>>
>>Please take a look at:
>>http://cvs.parisc-linux.org
>>
>>Note: That I'm currently working on kdb's stability...
>>so you might not get something that is as happy as you
>>expect from other platofrms.
>>    
>>
>
>It's a little confusing that there's mention of KDB in the
>non-KDB enabled kernel. Under General Options it says 
>"Kernel Debugger support" which seems (to me) to have the
>sole function of generating the above messages :)
>
>patrick
>  
>
that's right. If I disable it under general options and patch 
the kernel as written above kdb works.

thanks, 

  sven



--------------040502000209020904040806
Content-Type: text/html; charset=ISO-8859-15
Content-Transfer-Encoding: 7bit

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <title></title>
</head>
<body>
Patrick Caulfield wrote:<br>
<blockquote type="cite" cite="mid20020708064246.GC815@tykepenguin.com">
  <pre wrap="">On Sun, Jul 07, 2002 at 08:11:47PM -0400, Carlos O'Donell wrote:
  </pre>
  <blockquote type="cite">
    <blockquote type="cite">
      <pre wrap="">hello,

Im writing on a floppy driver for my 712 and want to use kdb,

but when i try to compile the kernel with it, i get errors:

kdb/break.h: No such file or directory
kdb/kgdb_types.h: No such file or directory
kdb/kgdb_machine.h: No such file or directory
kdb/trap.h: No such file or directory

does anybody know where i can get this files ?.

bye
    sven
      </pre>
    </blockquote>
    <pre wrap="">If you haven't already done so, I would recommend getting 
a kdb patched source tree from cvs.parisc-linux.org

There is a 'kdb_v21' branch for the 'linux' tree.

cvs co -rkdb_v21 linux

Please take a look at:
<a class="moz-txt-link-freetext" href="http://cvs.parisc-linux.org">http://cvs.parisc-linux.org</a>

Note: That I'm currently working on kdb's stability...
so you might not get something that is as happy as you
expect from other platofrms.
    </pre>
  </blockquote>
  <pre wrap=""><!---->
It's a little confusing that there's mention of KDB in the
non-KDB enabled kernel. Under General Options it says 
"Kernel Debugger support" which seems (to me) to have the
sole function of generating the above messages :)

patrick
  </pre>
</blockquote>
<pre wrap="">that's right. If I disable it under general options and patch 
the kernel as written above kdb works.

thanks, 

  sven
</pre>
<br>
</body>
</html>

--------------040502000209020904040806--




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The content of my question concerns the "old fellows", who were using the 
ancient series HP/9000/3xx or 4xx and whom I hope to find reading this 
mails-list. But anyone, able to help me, is welcome...

I took a disk SCSCI-1 out of a station 425t running with BASIC-UX. On this one, 
there are several files (data and programs written in HP-BASIC) I want to reach 
in reading with my 715/50 running with Woody. How to do that?

Nota:
1) the filesystem's type on this disk is: HFS version 6.0.
2) the disk is already installed in the daisy chain SCSI and correctly 
identified during the boot sequence.

Thanks.
D. Lorin




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Hello, anyone knows how to run modem under k210/819 HP?
I want to make dial-in with this modem




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>>>>> "DL" == dlorin  <dlorin@univ-rennes1.fr> writes:

DL> I took a disk SCSCI-1 out of a station 425t running with
DL> BASIC-UX. On this one, there are several files (data and programs
DL> written in HP-BASIC) I want to reach in reading with my 715/50
DL> running with Woody. How to do that?

If there is only one partition on the drive,

        mount -t hfs /dev/sdX /mnt

should work.

HP/UX's partitioning scheme is not supported, unfortunately, so if you
have several partitions you need to hack a bit.  

I suggest writing a program to scan for the UFS magic field on the
disk and print the offsets.  Move 8K back from the start of each
superblock and write down that number.

Then use the loopback mount facility and pass the offset you found to
losetup's -o option.  So - say -

        losetup -o <found offset> /dev/loop0 /dev/sda
        mount -t hfs /dev/loop0 /mnt

With a bit of tinkering, you should be able to mount your hfs
filesystems that way.

-- 
Martin K. Petersen      Cereal Bowl Engineer, Linuxcare, Inc.
http://mkp.net/         SGI XFS, Linux/PA-RISC, Linux/IA-64



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On Mon, 2002-07-08 at 04:05, dlorin@univ-rennes1.fr wrote:
> The content of my question concerns the "old fellows", who were using the 
> ancient series HP/9000/3xx or 4xx and whom I hope to find reading this 
> mails-list. But anyone, able to help me, is welcome...
> 
> I took a disk SCSCI-1 out of a station 425t running with BASIC-UX. On this one, 
> there are several files (data and programs written in HP-BASIC) I want to reach 
> in reading with my 715/50 running with Woody. How to do that?
> 
> Nota:
> 1) the filesystem's type on this disk is: HFS version 6.0.
> 2) the disk is already installed in the daisy chain SCSI and correctly 
> identified during the boot sequence.
> 
> Thanks.
> D. Lorin


The kernel sources suggest that the following may work if you have ufs
support compiled into your kernel:

   mount -t ufs -o ufstype=hp /dev/sd{whatever} /mnt

It would be unportable if type "hfs" as Martin Peterson suggests works. 
The "hfs" filesystem type in the standard Linux kernel represents an
Apple Macintosh filesystem.

-- SP




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>>>>> "Steve" == Steve Pacenka <spacenka@lightlink.com> writes:

Steve> It would be unportable if type "hfs" as Martin Peterson
Steve> suggests works.  The "hfs" filesystem type in the standard
Steve> Linux kernel represents an Apple Macintosh filesystem.

Yes, you're right.  Waaay too early in the morning here (And slightly
embarassing given that I was the one who implemented the hfs support
in ufs d:)...

-- 
Martin K. Petersen      Cereal Bowl Engineer, Linuxcare, Inc.
http://mkp.net/         SGI XFS, Linux/PA-RISC, Linux/IA-64



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I have the same problem with the RTC on my C110.  I replaced the
battery...and the real-time clock does work.  Even after a reboot.  But upon
a kernel panic the RTC gets nuked.  I can panic the 0.93 kernel by 'cat
/etc/passwd > /dev/audio' without the harmony driver installed (I have not
gotten around to recompiling my kernel as of yet).  Try setting it upon boot
then rebooting.  If this works then your RTC is more than likely ok.

				-Mike


-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Juergen
Braukmann
Sent: Friday, July 05, 2002 3:35 AM
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Installing on C110


Grant Grundler schrieb:
>
Hi Grant

> Juergen Braukmann wrote:
> > I an stuck with three problems, for one my german keyboard doesn't work
> > as expected (the <>| key in particvular). I should get round that with
> > kbdconfig as suggested in another mail, but I diddn't fint that program
> > installed. ;-( Since this is my first ever debian install, it's more a
> > problem of finding and reading the docs to the packet manager and some
> > more general info about debian systems.
>
> "apt-get" is your friend.
> Once upon a time, "apt-cache search <pgm>" would tell me which package
> contained the program. But I've forgotten the explanation of why
> that stopped working.
>

OK, I will look that one up.

> > More annoying is the system clock, that always puts me back to 1970. Set
> > the date, wrote it back to CMOS, checked it, rebooted and was back into
> > the seventies. The device /dev/rtc exists with the suggested major/minor
> > numbers from the FAQ. At this time, I enter date time after bootup like
> > with my first PC. ;-)
>
> Could the battery be dead?
> You might take that out and measure it with a volt meter.
>

I think the battery is OK. HP-UX worked well, but I hadn't used it for a
time and didn't check. I should rule out that possibility before start
to cry. ;-) (i.e. My network connection started to work perfect after I
plugged the other machine back to the coax cable... ;-))
But things looked like that I can set the CMOS time from the boot
program (active before realy booting something) and linux telling me
something about garbled time afterwards. My suspicion is that the stored
format differs from that hwclock -w tried to use.

> > I cannot get X to run. "No screens found". I tried the good old
> > xf86config setup, but don't realy know what to enter for a video card
> > (thinking that's the problem). Help on that is also appreciated. Is
> > there any tool to identify hardware in general?
>
> www.parisc-linux.org has lots of FAQ info and HOW-TOs.
> Look at the boot console output to determine which type
> of graphics card you have and start hunting from there.
>

well, hunting starts with  that pice of fragment:

CORAL SGC Graphics
1280x1024-32 framebuffer

and that is not listed amongst the cards. So I add some more questions
to that:
when I get system info at the boot program, I see that I'v got no EISA
devices. The graphics card looks propetary -from the connectors side of
view-. Are the slots EISA slots? In what case, I'd fetch an old ELSA
Winner 2000 EISA from work and try with that. At least, I know how to
configure these.

Anyway, this has to wait to the next week, since I am off over the
weekend. ;-)


Juergen

--
===========================================     __   _
Juergen Braukmann juergen.braukmann@gmx.de| -o)/ /  (_)__  __ ____  __
Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
===========================================_\_v __/_/_//_/\_,_/ /_/\_\

_______________________________________________
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On Mon, Jul 08, 2002 at 09:16:00AM -0400, Michael Audette wrote:
> I have the same problem with the RTC on my C110.  I replaced the
> battery...and the real-time clock does work.  Even after a reboot.  But upon
> a kernel panic the RTC gets nuked.  I can panic the 0.93 kernel by 'cat
> /etc/passwd > /dev/audio' without the harmony driver installed (I have not
> gotten around to recompiling my kernel as of yet).  Try setting it upon boot
> then rebooting.  If this works then your RTC is more than likely ok.


That probably explains why mine seems to work sometimes and not others :-)
I just installed ntpdate and ignored the problem.

Patrick



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Hello,
can I make RAID 1?
sda1 is parisc/boot lodaer
sda2 is /
sda3 is swap
sda4 /home
can I RAID sda2 which is root mounted with sdb2?
Regards




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> It would be unportable if type "hfs" as Martin Peterson suggests works. 
> The "hfs" filesystem type in the standard Linux kernel represents an
> Apple Macintosh filesystem.

You're right, the problem is still open ...

Clearly, it is the Hewlett-Packard Filesystem 'HFS' HP-UX (ver. 6.0), 
which has been developped in the 80's, and not the Apple's filesystem 
HFS (confusion , confusion, ...).
Anyway, thanks to all.

d.l.



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Stephan Trajkoff wrote:
> Hello,
> TEAM from esiee.fr told me that it is common SMP problem...
> after heavy compilation, 'w' and 'ps ax' don't work

My a500 has been running -pa52 and iteratively built 88 linux kernels
since yesterday. Both w and ps ax still work. Something else must be
triggering the problem.

grant



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Le lundi 8 juillet 2002, =E0 06:32 , Grant Grundler a =E9crit :

> Stephan Trajkoff wrote:
>> Hello,
>> TEAM from esiee.fr told me that it is common SMP problem...
>> after heavy compilation, 'w' and 'ps ax' don't work
>
> My a500 has been running -pa52 and iteratively built 88 linux kernels
pa52 ? Well, if you're one step further than everyone, that's kinda=20
cheating :^)
> since yesterday. Both w and ps ax still work. Something else must be
> triggering the problem.
Do you mean that the hangs Ryan and I are studying should be solved by=20=

your changes ?
Anyway, I have noticed that on J5k and A500, using the 'normal IO' mode=20=

for the SYM53C8XX driver
seems to decrease risk of such hangs (running 2 setis on both machines=20=

and building ISOs on the
A500 for about 4 days, pa46 on both, without hangs, where the A500 could=20=

only run for about
3 hours is the same conditions with the MMIO mode, 1 day in the best=20
case.)

But I had not enough time to investigate further, so it should only be=20=

considered as a
*interesting coincidence* :)

I have now installed pa51 on these boxes, so I'll keep checking for=20
hangs.


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] modem on k210/819
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To: Stephan Trajkoff <stephan@itp.bg>
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Stephan,

The mux support is currently under development.  Right now,
the console on the K class systems is done via a PDC (firmware)
console that Christoph Plattner wrote.  

I have been working on getting support for the native mux in
but I have a few minor bugs left to flush out before I can
commit the first version.

Also I have only been testing the mux for console support,
not modem support, so additional work might need to be completed
before the modem works .. not sure on that.

thanks,

- Ryan

On Mon, 2002-07-08 at 05:12, Stephan Trajkoff wrote:
> Hello, anyone knows how to run modem under k210/819 HP?
> I want to make dial-in with this modem
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Thibaut VARENE wrote:
> pa52 ? Well, if you're one step further than everyone, that's kinda=20
> cheating :^)

yeah...I was going to test/commit the lvm10 patch but didn't have extra disks
to trash on that box...

> > since yesterday. Both w and ps ax still work. Something else must be
> > triggering the problem.
> Do you mean that the hangs Ryan and I are studying should be solved by=20=
> your changes ?

no. Just providing another data point...

> Anyway, I have noticed that on J5k and A500, using the 'normal IO' mode=20=
> for the SYM53C8XX driver seems to decrease risk of such hangs (running
> 2 setis on both machines and building ISOs on the A500 for about 4 days,
> pa46 on both, without hangs,

Did you stop the machine at this point or did it hang?
ie has anyone seen a hang when sym53c8xx driver was using IO port space?

> where the A500 could only run for about
> 3 hours is the same conditions with the MMIO mode, 1 day in the best=20
> case.)

This really suggests the problem is with disk IO and not compilation.
And it stinks like a "PCI Posted Write" problem.

Have you been able to get a TOC dump and decode where it was hung?

> But I had not enough time to investigate further, so it should only be=20=
> considered as a *interesting coincidence* :)

ok.

> I have now installed pa51 on these boxes, so I'll keep checking for=20
> hangs.

Finding the address of where the CPUs are spinning or hung would be good.
BTW, this is with SMP or non-SMP kernels?

grant



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From: Thibaut VARENE <varenet@esiee.fr>
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Le lundi 8 juillet 2002, =E0 10:27 , Grant Grundler a =E9crit :
>
>> Anyway, I have noticed that on J5k and A500, using the 'normal IO'=20
>> mode=3D20=3D
>> for the SYM53C8XX driver seems to decrease risk of such hangs =
(running
>> 2 setis on both machines and building ISOs on the A500 for about 4=20
>> days,
>> pa46 on both, without hangs,
>
> Did you stop the machine at this point or did it hang?
> ie has anyone seen a hang when sym53c8xx driver was using IO port =
space?
I had to stop the box, no hang, just some kernel upgrade needed...
>
>> where the A500 could only run for about
>> 3 hours is the same conditions with the MMIO mode, 1 day in the =
best=3D20
>> case.)
>
> This really suggests the problem is with disk IO and not compilation.
> And it stinks like a "PCI Posted Write" problem.
yup, also what I thought, though no big knowledge on that topic...
Anyway I'm pretty convinced this is a I/O pb, which seems to be =
confirmed
by the observations Ryan and I made:
all stuck processes are always in 'down_read' or 'down_write' state when
hanging...
>
> Have you been able to get a TOC dump and decode where it was hung?
No, I have just got some 't' SysRq dump (special 't', from Ryan's patch)
Anyway next time it will hang i'll try to dump.
The fact is that hangs i got till now aren't 'deadly' ones in the =
meaning
that I've always been able to reboot the box more or less gently (i.e.
most of the time via 'S.U.B.' SysRqs), that's why I didn't think about=20=

TOC,
because the box wasn't technically *dead*, and I tried to avoid data=20
corruption :)
>
>> I have now installed pa51 on these boxes, so I'll keep checking =
for=3D20
>> hangs.
>
> Finding the address of where the CPUs are spinning or hung would be=20
> good.
Sure. I'm supposed to find this in PDC after a TOC, right ?

> BTW, this is with SMP or non-SMP kernels?
All problems are coming on SMP kernels. I've never seen such hangs on UP
systems (thank God, it would be awful to restart our webserver every=20
day!)

I'm currently stressing a bit a B2000 to confirm that (seti+kernel=20
builds...)


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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From: "James Braid" <james.braid@peace.com>
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Subject: [parisc-linux] L2000 stable with SMP and RAID
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Hi list,

FYI, I downloaded the latest CVS kernel and compiled it on my L2000 and
it magically seems have fixed most of the stability problem's I have
been having with the box. Before the box would crap out randomly when
doing pretty much *any* I/O stuff. SMP was also very flaky.

SMP seems to be working fine, and top even seems to report the correct
values for load average and CPU utilization :-) It's been running
distributed.net for several days now with no worries.

I have got 2 disks in a RAID 0 config and have been testing them with
dbench and bonnie and so far the box seems to be pretty stable.

Cheers, James




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Thibaut VARENE wrote:
> > ie has anyone seen a hang when sym53c8xx driver was using IO port =
> space?
> I had to stop the box, no hang, just some kernel upgrade needed...

ok.

> Anyway I'm pretty convinced this is a I/O pb, which seems to be =
> confirmed
> by the observations Ryan and I made:
> all stuck processes are always in 'down_read' or 'down_write' state when
> hanging...

hmm...I've not mucked with the semaphore code and don't pretend to
understand it.

> No, I have just got some 't' SysRq dump (special 't', from Ryan's patch)

This is better than TOC for the reasons you mentioned. 
Please post whatever output you can get from SysRq and
don't bother with the TOC unless the SysRq doesn't work.

> All problems are coming on SMP kernels. I've never seen such hangs on UP
> systems (thank God, it would be awful to restart our webserver every=20
> day!)

ok.

thanks,
grant



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Hi,
why I need to enable PCI/EISA to make available option zalon driver in 
SCSI drivers?
My HP K210 don't have PCIs and EISA?!!?!?!?





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] k210/819 Zalon driver
Date: Tue, 9 Jul 2002 08:29:16 +0100
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On Tue, Jul 09, 2002 at 10:56:01AM +0300, Stephan Trajkoff wrote:
> Hi,
> why I need to enable PCI/EISA to make available option zalon driver in 
> SCSI drivers?
> My HP K210 don't have PCIs and EISA?!!?!?!?

At the moment you have to enable PCI because that is the way the config
script is organised.  I don't know if zalon support would build without
PCI because it uses the ncr53c8xx driver which normally drives only PCI
chips.  It is an area that needs attention anyway, because if you enable
sym53c8xx_2 you wont get the zalon option at all (which is obviously
wrong).

Richard?!!?!?!?




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From: Stephan Trajkoff <stephan@itp.bg>
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Subject: Re: [parisc-linux] k210/819 Zalon driver
Date: Tue, 09 Jul 2002 14:23:41 +0300
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Xref: news.gmane.org gmane.linux.ports.parisc:15371

T think that my HP K210 don't have any PCIs or EISAs...
dmesg don't show me that I have any PCIs or EISAs...
and I have ncr53c720 not 8xx



Richard Hirst wrote:

>On Tue, Jul 09, 2002 at 10:56:01AM +0300, Stephan Trajkoff wrote:
>  
>
>>Hi,
>>why I need to enable PCI/EISA to make available option zalon driver in 
>>SCSI drivers?
>>My HP K210 don't have PCIs and EISA?!!?!?!?
>>    
>>
>
>At the moment you have to enable PCI because that is the way the config
>script is organised.  I don't know if zalon support would build without
>PCI because it uses the ncr53c8xx driver which normally drives only PCI
>chips.  It is an area that needs attention anyway, because if you enable
>sym53c8xx_2 you wont get the zalon option at all (which is obviously
>wrong).
>
>Richard?!!?!?!?
>
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
>  
>






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From: Andy Walker <squawker@start.no>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] k210/819 Zalon driver
Date: Tue, 09 Jul 2002 13:09:14 +0200 (CEST)
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Quoting Stephan Trajkoff <stephan@itp.bg>:

> T think that my HP K210 don't have any PCIs or EISAs...
> dmesg don't show me that I have any PCIs or EISAs...
> and I have ncr53c720 not 8xx
> 

No, you don't have PCI or EISA, but you do need the PCI code for the
time being. Although the Zalon board has a 720, it is driven by
the 8xx code. The 53c8xx driver has been modified to handle the 720
(which is a lot closer to the 8xx chips in terms of scrip capabilities
than its poor 700 and 710 relations).

-Andy



> 
> Richard Hirst wrote:
> 
> >On Tue, Jul 09, 2002 at 10:56:01AM +0300, Stephan Trajkoff wrote:
> >  
> >
> >>Hi,
> >>why I need to enable PCI/EISA to make available option zalon driver in
> 
> >>SCSI drivers?
> >>My HP K210 don't have PCIs and EISA?!!?!?!?
> >>    
> >>
> >
> >At the moment you have to enable PCI because that is the way the
> config
> >script is organised.  I don't know if zalon support would build
> without
> >PCI because it uses the ncr53c8xx driver which normally drives only
> PCI
> >chips.  It is an area that needs attention anyway, because if you
> enable
> >sym53c8xx_2 you wont get the zalon option at all (which is obviously
> >wrong).
> >
> >Richard?!!?!?!?
> >
> >
> >_______________________________________________
> >parisc-linux mailing list
> >parisc-linux@lists.parisc-linux.org
> >http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
> >
> >  
> >
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


------------------------------------------------------------
F din egen @start.no-adresse gratis p http://www.start.no/



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From: Stephan Trajkoff <stephan@itp.bg>
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Subject: Re: [parisc-linux] k210/819 Zalon driver
Date: Tue, 09 Jul 2002 14:34:11 +0300
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Xref: news.gmane.org gmane.linux.ports.parisc:15373

It is very confusing thing, for this reason I compiled kernel 10 times, 
to understand that I have to enable PCI...

Andy Walker wrote:

>Quoting Stephan Trajkoff <stephan@itp.bg>:
>
>  
>
>>T think that my HP K210 don't have any PCIs or EISAs...
>>dmesg don't show me that I have any PCIs or EISAs...
>>and I have ncr53c720 not 8xx
>>
>>    
>>
>
>No, you don't have PCI or EISA, but you do need the PCI code for the
>time being. Although the Zalon board has a 720, it is driven by
>the 8xx code. The 53c8xx driver has been modified to handle the 720
>(which is a lot closer to the 8xx chips in terms of scrip capabilities
>than its poor 700 and 710 relations).
>
>-Andy
>
>
>
>  
>
>>Richard Hirst wrote:
>>
>>    
>>
>>>On Tue, Jul 09, 2002 at 10:56:01AM +0300, Stephan Trajkoff wrote:
>>> 
>>>
>>>      
>>>
>>>>Hi,
>>>>why I need to enable PCI/EISA to make available option zalon driver in
>>>>        
>>>>
>>>>SCSI drivers?
>>>>My HP K210 don't have PCIs and EISA?!!?!?!?
>>>>   
>>>>
>>>>        
>>>>
>>>At the moment you have to enable PCI because that is the way the
>>>      
>>>
>>config
>>    
>>
>>>script is organised.  I don't know if zalon support would build
>>>      
>>>
>>without
>>    
>>
>>>PCI because it uses the ncr53c8xx driver which normally drives only
>>>      
>>>
>>PCI
>>    
>>
>>>chips.  It is an area that needs attention anyway, because if you
>>>      
>>>
>>enable
>>    
>>
>>>sym53c8xx_2 you wont get the zalon option at all (which is obviously
>>>wrong).
>>>
>>>Richard?!!?!?!?
>>>
>>>
>>>_______________________________________________
>>>parisc-linux mailing list
>>>parisc-linux@lists.parisc-linux.org
>>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>>
>>>
>>> 
>>>
>>>      
>>>
>>
>>
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
>>    
>>
>
>
>------------------------------------------------------------
>F din egen @start.no-adresse gratis p http://www.start.no/
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
>  
>






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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] k210/819 Zalon driver
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On Tue, Jul 09, 2002 at 08:29:16AM +0100, Richard Hirst wrote:
> On Tue, Jul 09, 2002 at 10:56:01AM +0300, Stephan Trajkoff wrote:
> > Hi,
> > why I need to enable PCI/EISA to make available option zalon driver in 
> > SCSI drivers?
> > My HP K210 don't have PCIs and EISA?!!?!?!?
> 
> At the moment you have to enable PCI because that is the way the config
> script is organised.  I don't know if zalon support would build without
> PCI because it uses the ncr53c8xx driver which normally drives only PCI
> chips.  It is an area that needs attention anyway, because if you enable
> sym53c8xx_2 you wont get the zalon option at all (which is obviously
> wrong).
> 
> Richard?!!?!?!?

Something else is that even if you don't have PCI slots, some of the cards
you have may contain a GSC<->PCI adapter and a PCI device.  The 100Mbit
& Gigabit lan cards are definitely like this and there may be others.

It probably is possible to compile the zalon driver without having PCI
enabled but it'll take a small amount of work to verify.

-- 
Revolutions do not require corporate support.



From - Thu Nov 08 21:23:30 2018
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From: Joel Soete <joel.soete@freebel.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] RAID 1 ON PARISC LINUX
Date: Tue, 09 Jul 2002 15:42:42 +0000
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Have a look to: 
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016323.html

As I recover some free disk I would be able to have a more detail look 
next week. But with a separate /boot partition.

Good luck,
	Joel


Stephan Trajkoff wrote:
> Hello,
> can I make RAID 1?
> sda1 is parisc/boot lodaer
> sda2 is /
> sda3 is swap
> sda4 /home
> can I RAID sda2 which is root mounted with sdb2?
> Regards
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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From: Jeremy Drake <jeremyd@apptechsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HOWTO: Using HIL keyboard and HIL mouse on PARISC
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When trying to build my kernel (-pa52) with the new HIL support I got this 
while building vmlinux:

drivers/hil/hil.o: In function `.L1369':
drivers/hil/hil.o(.text.hil_kbd_connect+0x4f8): undefined reference to 
`register_ps2_keybfuncs'

Could someone please let me know what I am doing wrong (leaving out)?  I
have attached my .config (for a J5k).

Thanks

-- 
Life's the same, except for the shoes.
- The Cars

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From - Thu Nov 08 21:23:30 2018
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From: Joel Soete <joel.soete@freebel.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] L2000 stable with SMP and RAID
Date: Tue, 09 Jul 2002 18:25:04 +0000
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To: James Braid <james.braid@peace.com>
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Hi James,

For my part I would like to test RAID-1 on my B180 (2 of 9Gb).
Could you let me know more on the RAID configuration you implemented?
Do you have a special slice (partition) for your F0 (parisc bootloader) 
and may be also for /boot?
Do you apply 'persistent-superblock 1' to allow auto detection at boot time?

Thanks in advance for your help,
	Joel

PS: may be a simple copy of your /etc/raidtab would be the simple answer 
to all my question :) ?

James Braid wrote:
> Hi list,
> 
> FYI, I downloaded the latest CVS kernel and compiled it on my L2000 and
> it magically seems have fixed most of the stability problem's I have
> been having with the box. Before the box would crap out randomly when
> doing pretty much *any* I/O stuff. SMP was also very flaky.
> 
> SMP seems to be working fine, and top even seems to report the correct
> values for load average and CPU utilization :-) It's been running
> distributed.net for several days now with no worries.
> 
> I have got 2 disks in a RAID 0 config and have been testing them with
> dbench and bonnie and so far the box seems to be pretty stable.
> 
> Cheers, James
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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From: Grant Grundler <grundler@dsl2.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] k210/819 Zalon driver
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Stephan Trajkoff wrote:
> T think that my HP K210 don't have any PCIs or EISAs...
> dmesg don't show me that I have any PCIs or EISAs...
> and I have ncr53c720 not 8xx

Right. It's confusing. Please send a patch that either corrects
the problem or gives a useful error. I don't expect it to be that
hard to do but it does take time. I'm more interested in working
on SMP-Interrupt issues (per-CPU statistics and IRQ regions,
Interrupt distribution).

thanks,
grant



From - Thu Nov 08 21:23:30 2018
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From: "James Braid" <james.braid@peace.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] L2000 stable with SMP and RAID
Date: Wed, 10 Jul 2002 07:41:10 +1200
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> For my part I would like to test RAID-1 on my B180 (2 of 9Gb).
> Could you let me know more on the RAID configuration you implemented?
> Do you have a special slice (partition) for your F0 (parisc 
> bootloader) 
> and may be also for /boot?

My RAID config is just a 2-disk RAID-0 array for testing at the moment.
Heres the raidtab (probably not a lot of use to you though):

----

raiddev                 /dev/md0
raid-level              0
nr-raid-disks           2
chunk-size              4

device                  /dev/sdb1
raid-disk               0
device                  /dev/sdc1
raid-disk               1

----

Theres a RAID-1 root howto for Debian which I have used in the past
here: http://www.james.rcpt.to/programs/debian/raid1/ 


Cheers, James




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> When trying to build my kernel (-pa52) with the new HIL support I got this 
> while building vmlinux:
> 
> drivers/hil/hil.o: In function `.L1369':
> drivers/hil/hil.o(.text.hil_kbd_connect+0x4f8): undefined reference to 
> `register_ps2_keybfuncs'
> 
> Could someone please let me know what I am doing wrong (leaving out)?  I
> have attached my .config (for a J5k).
> 
> Thanks
>

J,

Until the hp_psaux.c driver is converted to input layer, you'll
have to compile in the GSC PS2 driver code to get it all right.

CONFIG_GSC_PS2=y

I'm currently working with Thomas to make the conversion.

Helge, any idea why we even call that function from hil_kbd?
I'm at a loss to explain the reasoning...

c.



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From: Thibaut VARENE <varenet@esiee.fr>
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Hi fellows,

This short mail to tell everyone that I have made some changes to the 
hwdb's code,
so that you can now register machines like rp7410 and others.

What's more, the redundancy check is now made on the "Model Output" 
field,
instead of the "Model" field, to avoid people making typos registering 
twice the same box.

HTH,


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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On Wednesday 10 July 2002 00:04, Carlos O'Donell wrote:
> > When trying to build my kernel (-pa52) with the new HIL support I got
> > this while building vmlinux:
> >
> > drivers/hil/hil.o: In function `.L1369':
> > drivers/hil/hil.o(.text.hil_kbd_connect+0x4f8): undefined reference to
> > `register_ps2_keybfuncs'
> >
> > Could someone please let me know what I am doing wrong (leaving out)?  I
> > have attached my .config (for a J5k).
> >
> > Thanks
>
> J,
>
> Until the hp_psaux.c driver is converted to input layer, you'll
> have to compile in the GSC PS2 driver code to get it all right.
>
> CONFIG_GSC_PS2=y
>
> I'm currently working with Thomas to make the conversion.
>
> Helge, any idea why we even call that function from hil_kbd?
> I'm at a loss to explain the reasoning...

Hi Carlos,

>From HIL we send keystrokes as virtual KEY_XYZ values to the linux input layer.
There those keystrokes are converted by an internal table to AT-style keystrokes
and then fed into the pckbd_translate() function which finally send the keycode
to the normal linux vt layer.

If we wouldn't register "our"  pckbd_translate() - which is in our hp_psaux.c and 
hp_keyb.c sources - through the register_ps2_keybfuncs() helper function, most 
of the HIL keys (e.g. all numpad-, cursor, ... -keys) would never be available in 
our linux kernel.
As soon as hp_psaux.c and hp_keyb.c are converted, just remove this function and
all it's references in the HIL code.

I hope I could explain it somewhat understandable,

Greetings,
Helge




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After having read on this list that some SMP-related problems were fixed,
I decided to try out the latest kernel as SMP on my J5k.  I tried my old
test, apt-get update, on it.  It downloaded the package lists fine, but
stopped after printing "Reading Package Lists... 0%".  Since I was running
over an ssh session, I don't have any console log messages that may have
appeared, but every time before this (on older smp kernels) it has stopped
at an unaligned access message.  As a point of reference, the last smp 
kernel that was stable for me was 2.4.17-32-smp in debian.  There was an 
updated version of it that was not stable, the stable one was the release 
before (if the box was up, I could get more info from the .deb I grabbed 
of it).  Hopefully that info will help you figure out what change was 
likely to have caused the problems.  I'll get you specifics on that kernel 
package tomorrow.

-- 
FORTUNE PROVIDES QUESTIONS FOR THE GREAT ANSWERS: #4
A:	Go west, young man, go west!
Q:	What do wabbits do when they get tiwed of wunning awound?




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Jeremy Drake wrote:
> After having read on this list that some SMP-related problems were fixed,
> I decided to try out the latest kernel as SMP on my J5k.  I tried my old
> test, apt-get update, on it.  It downloaded the package lists fine, but
> stopped after printing "Reading Package Lists... 0%".

It Works For Me. (tm)

Did you build this kernel yourself or grab a debian kernel package?
Can you provide "uname -a" output of the SMP kernel you tested?

FYI, I've uploaded my a500 build (should work on j5k as well
if it's using serial console) to:
	ftp://ftp.parisc-linux.org/kernels/a500/2.4.18-pa52.tgz

The -pa52 kernel built 100+ kernels/modules successively until
I stopped it on the a500-44. The same kernel on a500-6X (PA8700)
crashes after 12 or so hours of building gcc bits. I've also seen
eth0 (tulip driver) spontaneously go to an unconfigured state
without saying anything on the console. It's possible a cron job
or something else ifdown'd it but I don't know why.

BTW, before I go to bed tonight, I expect the latest kernel to be -pa54.
I'll be adding a one-liner sym53c8xx_2 driver patch to allow one to
use the default CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1.
One can use sym53c8xx_2 now with CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0.
Richard Hirst and Paul Bame (and a few others) have tested this out already.

thanks,
grant



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Hello, on kernel 2.4.18-pa52, i compiled harmony sound blaster
in dmesg the sound blaster is detected
but when I start mpg123 blahblah.mp3 the output is Illegal operation





From - Thu Nov 08 21:23:31 2018
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From: Jeremy Drake <jeremyd@apptechsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SMP (in)stability
Date: Wed, 10 Jul 2002 00:55:25 -0700 (PDT)
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On Tue, 9 Jul 2002, Grant Grundler wrote:

> Jeremy Drake wrote:
> > After having read on this list that some SMP-related problems were fixed,
> > I decided to try out the latest kernel as SMP on my J5k.  I tried my old
> > test, apt-get update, on it.  It downloaded the package lists fine, but
> > stopped after printing "Reading Package Lists... 0%".
> 
> It Works For Me. (tm)
> 
> Did you build this kernel yourself or grab a debian kernel package?
> Can you provide "uname -a" output of the SMP kernel you tested?
Oops, I thought I said -pa52.  This is built from the cvs.parisc-linux.org
tree.  I won't be able to get the actual output of uname -a until
tomorrow, but I can guess what it will say: "Linux krakatoa 2.4.18-pa52
SMP #X Tues July 09 14:30:00 PDT 2002 parisc unknown".  Not too sure what
it says for the arch...  I sent my uniproc .config to the list earlier
today, but I can send you the smp one tomorrow if you want it.  I can even
send you the package that make-kpkg made for me, if you want.

I don't really understand what the deal is with SMP on this box, but 
various strange things happen: apt-get update kills it, samba kills it, 
and if I just leave it alone, it dies by itself after a while (I only 
witnessed the apt-get problem with this particular kernel).  I can build 
the kernel happily on it, it's just those certain things that crash it, 
usually after spitting an unaligned access message to the console, and 
sometimes causing an HPMC (the last one I remember was a "runway broad 
error").  I would chalk it up to hardware, because this box has a broken 
onboard USB connector (one is physically damaged and the other quit 
working when the pins in the damaged one got bent around), but I pulled 
the drive and stuck it in another J5k that is not damaged, and is 
virtually identical in configuration to the one I usually use, and it did 
the same thing.

Uniproc is perfectly stable, I have not ever seen it crash.  I just don't
like to let hardware sit unused like that second proc does.  (i have a
486sx25 running linux that I write emails on in pine, and a 286 running
dos and windows 3.1 sitting here on my KVM switch...;)

> > FYI, I've uploaded my a500 build (should work
on j5k as well > if it's using serial console) to:
> 	ftp://ftp.parisc-linux.org/kernels/a500/2.4.18-pa52.tgz
> 
> BTW, before I go to bed tonight, I expect the latest kernel to be -pa54.
> I'll be adding a one-liner sym53c8xx_2 driver patch to allow one to
> use the default CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1.
> One can use sym53c8xx_2 now with CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0.
> Richard Hirst and Paul Bame (and a few others) have tested this out already.

I will look at the tgz and also cvs update tomorrow when I get in the same 
building with the box, and send uname -a and .config, and also any 
observations I can make of the box when I get to it (any messages on the 
LCD, any ser pim output that it may have, any log messages)...  Next time 
I'll leave a serial console open to it :)

> 
> thanks,
> grant
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 
The gates in my computer are AND, OR and NOT; they are not Bill.




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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SMP (in)stability
Date: Wed, 10 Jul 2002 10:51:09 +0200
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Le mercredi 10 juillet 2002, =E0 09:55 , Jeremy Drake a =E9crit :

> On Tue, 9 Jul 2002, Grant Grundler wrote:
>
>> Jeremy Drake wrote:
>>> After having read on this list that some SMP-related problems were=20=

>>> fixed,
>>> I decided to try out the latest kernel as SMP on my J5k.  I tried my=20=

>>> old
>>> test, apt-get update, on it.  It downloaded the package lists fine,=20=

>>> but
>>> stopped after printing "Reading Package Lists... 0%".
>>
>> It Works For Me. (tm)
As For Us ;)
>>
>> Did you build this kernel yourself or grab a debian kernel package?
>> Can you provide "uname -a" output of the SMP kernel you tested?
> Oops, I thought I said -pa52.  This is built from the cvs.parisc-
> linux.org
> tree.
We have pa51 running on J5k:
Linux mkhppa02 2.4.18-pa51 #1 SMP Mon Jul 8 12:43:59 CEST 2002 parisc64=20=

unknown

It's a custom build from cvs (see .config attached).

The box worked perfectly fine with 2 setis running on it during 5 days=20=

with pa46,
and now it's been updated and running for 2 days in the same conditions.
So does our A500 under heavy load, which used to crash a couple of hours
after being started with kernels < pa46, when running seti/dnetc and=20
building ISOs.

It also seems to me (though i cannot confirm atm) that the 'PIO mode' in
SYM53C8XX driver improves stability.

About J5k, the only thing quite curious is the message that appears on=20=

the LCD after boot:

We first have 'Linux 2.4.18-pa5' (the name is too long and doesn't fit=20=

the display)
and then a PDC code overlap on it:
'INI CC01';
which gives us (iirc) something like:
'INI CC014.18-pa5'

echo whatever > /proc/pdc/lcd doesn't get annoyed by this message, so it
occurs only after boot sequence.

>>> FYI, I've uploaded my a500 build (should work
> on j5k as well > if it's using serial console) to:
>> 	ftp://ftp.parisc-linux.org/kernels/a500/2.4.18-pa52.tgz
I'm building a pa54 ISO/Lifimage that will be available soon at ESIEE=20
and on ftp.p-l.o :)


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/


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#
# Automatically generated make config: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y

#
# Processor type
#
# CONFIG_PA7100 is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7100LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PARISC64=y
# CONFIG_PDC_NARROW is not set

#
# General options
#
CONFIG_SMP=y
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_KWDB is not set
CONFIG_IOMMU_CCIO=y
# CONFIG_GSC is not set
# CONFIG_GSC_LASI is not set
# CONFIG_GSC_WAX is not set
# CONFIG_EISA is not set
# CONFIG_ISA is not set
CONFIG_PCI=y
# CONFIG_GSC_DINO is not set
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_SUPERIO=y
CONFIG_PCI_NAMES=y

#
# General setup
#
# CONFIG_HOTPLUG is not set
CONFIG_NET=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=m
# CONFIG_BINFMT_MISC is not set
# CONFIG_PM is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_LOOP=y
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
# CONFIG_BLK_DEV_INITRD is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
# CONFIG_NETLINK_DEV is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
CONFIG_INET_ECN=y
CONFIG_SYN_COOKIES=y

#
#   IP: Netfilter Configuration
#
# CONFIG_IP_NF_CONNTRACK is not set
# CONFIG_IP_NF_QUEUE is not set
CONFIG_IP_NF_IPTABLES=y
# CONFIG_IP_NF_MATCH_LIMIT is not set
# CONFIG_IP_NF_MATCH_MAC is not set
# CONFIG_IP_NF_MATCH_MARK is not set
# CONFIG_IP_NF_MATCH_MULTIPORT is not set
# CONFIG_IP_NF_MATCH_TOS is not set
# CONFIG_IP_NF_MATCH_AH_ESP is not set
# CONFIG_IP_NF_MATCH_LENGTH is not set
# CONFIG_IP_NF_MATCH_TTL is not set
# CONFIG_IP_NF_MATCH_TCPMSS is not set
# CONFIG_IP_NF_MATCH_UNCLEAN is not set
# CONFIG_IP_NF_MATCH_OWNER is not set
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
# CONFIG_IP_NF_TARGET_MIRROR is not set
# CONFIG_IP_NF_MANGLE is not set
CONFIG_IP_NF_TARGET_LOG=y
# CONFIG_IP_NF_TARGET_ULOG is not set
# CONFIG_IP_NF_TARGET_TCPMSS is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set

#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# ATA/IDE/MFM/RLL support
#
CONFIG_IDE=y

#
# IDE, ATA and ATAPI Block devices
#
CONFIG_BLK_DEV_IDE=y

#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_HD_IDE is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_IDEDISK is not set
# CONFIG_IDEDISK_MULTI_MODE is not set
# CONFIG_BLK_DEV_IDEDISK_VENDOR is not set
# CONFIG_BLK_DEV_IDEDISK_FUJITSU is not set
# CONFIG_BLK_DEV_IDEDISK_IBM is not set
# CONFIG_BLK_DEV_IDEDISK_MAXTOR is not set
# CONFIG_BLK_DEV_IDEDISK_QUANTUM is not set
# CONFIG_BLK_DEV_IDEDISK_SEAGATE is not set
# CONFIG_BLK_DEV_IDEDISK_WD is not set
# CONFIG_BLK_DEV_COMMERIAL is not set
# CONFIG_BLK_DEV_TIVO is not set
# CONFIG_BLK_DEV_IDECS is not set
CONFIG_BLK_DEV_IDECD=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_BLK_DEV_IDESCSI is not set

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_CMD640 is not set
# CONFIG_BLK_DEV_CMD640_ENHANCED is not set
# CONFIG_BLK_DEV_ISAPNP is not set
# CONFIG_BLK_DEV_RZ1000 is not set
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_SHARE_IRQ is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_BLK_DEV_ADMA=y
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_PCI_WIP is not set
# CONFIG_IDEDMA_NEW_DRIVE_LISTINGS is not set
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_AEC62XX_TUNING is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_WDC_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_AMD74XX_OVERRIDE is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_HPT34X_AUTODMA is not set
# CONFIG_BLK_DEV_HPT366 is not set
CONFIG_BLK_DEV_NS87415=y
# CONFIG_BLK_DEV_OPTI621 is not set
# CONFIG_BLK_DEV_PDC202XX is not set
# CONFIG_PDC202XX_BURST is not set
# CONFIG_PDC202XX_FORCE is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIS5513 is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_IDE_CHIPSETS is not set
CONFIG_IDEDMA_AUTO=y
# CONFIG_IDEDMA_IVB is not set
# CONFIG_DMA_NONPCI is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_ATARAID is not set
# CONFIG_BLK_DEV_ATARAID_PDC is not set
# CONFIG_BLK_DEV_ATARAID_HPT is not set

#
# SCSI support
#
CONFIG_SCSI=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=m
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=m

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_DEBUG_QUEUES is not set
CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_LASI700 is not set
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_NCR53C8XX is not set
CONFIG_SCSI_SYM53C8XX=y
# CONFIG_SCSI_ZALON is not set
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=80
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
CONFIG_SCSI_NCR53C8XX_IOMAPPED=y
# CONFIG_SCSI_NCR53C8XX_PQS_PDS is not set
# CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_LASI_82596 is not set
# CONFIG_SUNLANCE is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
# CONFIG_TULIP_MMIO is not set
# CONFIG_DE4X5 is not set
# CONFIG_DGRS is not set
# CONFIG_DM9102 is not set
# CONFIG_EEPRO100 is not set
# CONFIG_LNE390 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_8139TOO_PIO is not set
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_NEW_RX_RESET is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_RHINE_MMIO is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Input core support
#
# CONFIG_INPUT is not set
# CONFIG_INPUT_KEYBDEV is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set

#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set

#
# Input core support is needed for gameports
#

#
# Input core support is needed for joysticks
#
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# HIL support
#

#
# Input support needed for HIL support
#

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
CONFIG_QUOTA=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
CONFIG_EXT3_FS=y
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_INTERMEZZO_FS is not set
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_ROOT_NFS is not set
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
# CONFIG_ZISOFS_FS is not set
# CONFIG_ZLIB_FS_INFLATE is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_SMB_NLS is not set
CONFIG_NLS=y

#
# Native Language Support
#
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=y
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=y
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=y

#
# Console drivers
#

#
# Frame-buffer support
#
# CONFIG_FB is not set
# CONFIG_STI_CONSOLE is not set

#
# Sound
#
# CONFIG_SOUND is not set

#
# USB support
#
# CONFIG_USB is not set

#
# USB Controllers
#
# CONFIG_USB_UHCI is not set
# CONFIG_USB_UHCI_ALT is not set
# CONFIG_USB_OHCI is not set

#
# USB Device Class drivers
#
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_BLUETOOTH is not set
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_HP8200e is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set

#
# USB Human Interface Devices (HID)
#

#
#   Input core support is needed for USB HID
#

#
# USB Imaging devices
#
# CONFIG_USB_DC2XX is not set
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_SCANNER is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_HPUSBSCSI is not set

#
# USB Multimedia devices
#

#
#   Video4Linux support is needed for USB Multimedia device support
#

#
# USB Network adaptors
#
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_CATC is not set
# CONFIG_USB_CDCETHER is not set
# CONFIG_USB_USBNET is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set

#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_EMPEG is not set
# CONFIG_USB_SERIAL_FTDI_SIO is not set
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IPAQ is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XA is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XB is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_PL2303 is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OMNINET is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_RIO500 is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

--Apple-Mail-1-739229053--




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From: Thomas Bogendoerfer <tsbogend@elvis.franken.de>
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Subject: Re: [parisc-linux] SMP (in)stability
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Cc: Jeremy Drake <jeremyd@apptechsys.com>,
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	parisc-linux@lists.parisc-linux.org
To: Thibaut VARENE <varenet@esiee.fr>
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On Wed, Jul 10, 2002 at 10:51:09AM +0200, Thibaut VARENE wrote:
> It also seems to me (though i cannot confirm atm) that the 'PIO mode' in
> SYM53C8XX driver improves stability.

I always use sym-2 now, because I had this strange harddisk slow down problem
with the old sym driver. That might be worth a try, too.

Thomas.




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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: Re: [parisc-linux] SMP (in)stability
Date: Wed, 10 Jul 2002 13:02:39 +0200
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Le mercredi 10 juillet 2002, =E0 11:24 , Thomas Bogendoerfer a =E9crit :

> On Wed, Jul 10, 2002 at 10:51:09AM +0200, Thibaut VARENE wrote:
>> It also seems to me (though i cannot confirm atm) that the 'PIO mode'=20=

>> in
>> SYM53C8XX driver improves stability.
>
> I always use sym-2 now, because I had this strange harddisk slow down=20=

> problem
> with the old sym driver. That might be worth a try, too.
Well, we were using sym-2 on A500 before switching to sym-1, and at that=20=

time it
used to hang very often...

By the way, if you want to take a look at what I reported to Ryan when=20=

hangs
occured (SysRq 't', Ryan modified), take a look at:
http://pateam.esiee.fr/archive/mails/

and read the *SMPHangReport* files...

HTH,


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Le mercredi 10 juillet 2002, =E0 01:02 , Thibaut VARENE a =E9crit :

>
> Le mercredi 10 juillet 2002, =E0 11:24 , Thomas Bogendoerfer a =E9crit =
:
>
>> On Wed, Jul 10, 2002 at 10:51:09AM +0200, Thibaut VARENE wrote:
>>> It also seems to me (though i cannot confirm atm) that the 'PIO =
mode'=20
>>> in
>>> SYM53C8XX driver improves stability.
>>
>> I always use sym-2 now, because I had this strange harddisk slow down=20=

>> problem
>> with the old sym driver. That might be worth a try, too.
> Well, we were using sym-2 on A500 before switching to sym-1, and at=20
> that time it
> used to hang very often...
>
>
Talking about which; something weird happened:
we got a couple of segfault on previous ISOs build, but relaunching the=20=

build was enough to solve the problem.
Here I got something quite more subtle:

a make process (11859) seems to be stuck (running for about 2hours),=20
though seen as 'running', and the machine did not hang.
ctrl-c was enough to stop it...

I have no idea whether it's related to SMP pb we're tracking down=20
anyway...


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/

PS: as you can see, dumps are pretty *massive*, that's why i didn't post=20=

them on the m-l previously ;o)

ouputs:

mkhppa3:/proc/11859# uname -a
Linux mkhppa3 2.4.18-pa51-rbrad #1 SMP Mon Jul 8 00:41:45 CEST 2002=20
parisc64 unknown

mkhppa3:/proc/11859# ps -efljmw
   F S UID        PID  PPID  PGID   SID  C PRI  NI ADDR SZ WCHAN  STIME=20=

TTY          TIME CMD
100 S root         1     0     0     0  0  69   0 -   381 ?     =20
Jul08 ?        00:00:08 init
040 S root         2     1     1     1  0  69   0 -     0 ?     =20
Jul08 ?        00:00:00 [keventd]
040 S root         3     0     1     1  0  79  19 -     0 ?     =20
Jul08 ?        00:00:00 [ksoftirqd_CPU0]
040 S root         4     0     1     1  0  78  19 -     0 ?     =20
Jul08 ?        00:00:00 [ksoftirqd_CPU1]
040 S root         5     0     1     1  0  69   0 -     0 ?     =20
Jul08 ?        00:00:02 [kswapd]
040 S root         6     0     1     1  0  69   0 -     0 ?     =20
Jul08 ?        00:00:00 [bdflush]
040 S root         7     0     1     1  0  69   0 -     0 ?     =20
Jul08 ?        00:00:03 [kupdated]
040 S root         8     1     1     1  0  69   0 -     0 ?     =20
Jul08 ?        00:00:02 [kjournald]
040 S root        71     1     1     1  0  69   0 -     0 ?     =20
Jul08 ?        00:00:10 [kjournald]
040 S root        72     1     1     1  0  69   0 -     0 ?     =20
Jul08 ?        00:00:00 [kjournald]
140 S daemon      95     1    95    95  0  69   0 -   444 ?     =20
Jul08 ?        00:00:00 /sbin/portmap
040 S root       140     1   140   140  0  69   0 -   681 ?     =20
Jul08 ?        00:00:00 /sbin/syslogd
040 S root       143     1   143   143  0  69   0 -   577 ?     =20
Jul08 ?        00:00:00 /sbin/klogd
140 S root       147     1   147   147  0  69   0 -   479 ?     =20
Jul08 ?        00:00:00 /sbin/rpc.statd
140 S root       152     1   152   152  0  68   0 -   668 ?     =20
Jul08 ?        00:00:00 /usr/sbin/inetd
140 S root       161     1   161   161  0  69   0 -   911 ?     =20
Jul08 ?        00:00:00 /usr/sbin/sshd
140 S root       164     1   164   164  0  69   0 -   732 ?     =20
Jul08 ?        00:00:00 /usr/sbin/ntpd
040 S root       167     1   167   167  0  69   0 -   883 ?     =20
Jul08 ?        00:00:00 /usr/sbin/rpc.nfsd
040 S root       170     1   134   134  0  69   0 -   897 ?     =20
Jul08 ?        00:00:00 /usr/sbin/rpc.mountd
040 S root       173     1   173   173  0  68   0 -   563 ?     =20
Jul08 ?        00:00:00 /usr/sbin/cron
000 R varenet    978     1   978   186 92  79  19 -  3927 ?     =20
Jul09 ?        20:01:26 ./setiathome -nice 20 -proxy cache:3128
000 R varenet    979     1   979   186 92  79  19 -  3927 ?     =20
Jul09 ?        20:01:14 ./setiathome -nice 20 -proxy cache:3128
000 S root       987     1   987   987  0  69   0 -   377 ?      Jul09=20=

ttyS0    00:00:00 /sbin/getty -L ttyS0 9600 vt102
140 S root      1526   161   161   161  0  69   0 -  1560 ?     =20
10:34 ?        00:00:00 /usr/sbin/sshd
100 S varenet   1527  1526  1527  1527  0  69   0 -   731 ?      10:34=20=

pts/1    00:00:00 -bash
100 S root      1532  1527  1532  1527  0  69   0 -   735 ?      10:34=20=

pts/1    00:00:00 bash
000 S root     11363  1532 11363  1527  0  69   0 -   651 ?      10:46=20=

pts/1    00:00:00 /bin/sh ./isobuild.sh
100 S root     11389 11363 11363  1527  0  69   0 -   653 ?      10:46=20=

pts/1    00:00:00 /bin/sh /usr/bin/dpkg-buildpackage
000 S root     11532 11389 11363  1527  0  69   0 -   418 ?      10:48=20=

pts/1    00:00:00 /usr/bin/make -f debian/rules binary
140 R root     15428   161   161   161  0  70   0 -  1603 ?     =20
10:51 ?        00:00:00 /usr/sbin/sshd
100 S varenet  15445 15428 15445 15445  0  69   0 -   735 ?      10:51=20=

pts/2    00:00:00 -bash
000 S root     17219 11532 11363  1527  0  69   0 -   647 ?      10:55=20=

pts/1    00:00:00 sh -e -c for i in 32-smp 32 64 64-smp; do  cd=20
build-$i;  make-kpkg --append-to-version=3D-$i kernel_image;  cd ..;  =
cat=20
build-$i/debian/files >> debian/files;  done
000 S root      3675 17219 11363  1527  0  69   0 -   435 ?      11:21=20=

pts/1    00:00:00 /usr/bin/make -f /usr/share/kernel-package/rules=20
APPEND_TO_VERSION=3D-64 kernel_image
000 S root     11323  3675 11363  1527  0  68   0 -   599 ?      11:31=20=

pts/1    00:00:00 /usr/bin/make -j2 EXTRAVERSION=3D-64 ARCH=3Dparisc =
modules
000 S root     11333 11323 11363  1527  0  68   0 -   592 ?      11:31=20=

pts/1    00:00:00 /usr/bin/make -C drivers CFLAGS=3D-D__KERNEL__=20
-I/home/varenet/newiso/kernel-image-2.4.18-hppa-12.1/build-64/include=20
-Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer=20
-fno-strict-aliasing -fno-
000 R root     11859 11333 11363  1527 99  77   0 -   675 ?      11:32=20=

pts/1    01:53:59 /usr/bin/make -C scsi modules
100 S root     12119 15445 12119 15445  0  69   0 -   734 ?      13:22=20=

pts/2    00:00:00 bash
100 R root     12135 12119 12135 15445  0  79   0 -  1047 ?      13:27=20=

pts/2    00:00:00 ps -efljmw

mkhppa3:/proc/11859# cat cpu
cpu  698952 31
cpu0 668398 16
cpu1 30554 15

mkhppa3:/proc/11859# cat status
Name:   make
State:  R (running)
Tgid:   11859
Pid:    11859
PPid:   11333
TracerPid:      0
Uid:    0       0       0       0
Gid:    0       0       0       0
FDSize: 64
Groups: 0
VmSize:     2700 kB
VmLck:         0 kB
VmRSS:      1832 kB
VmData:     1128 kB
VmStk:         0 kB
VmExe:       132 kB
VmLib:      1240 kB
SigPnd: 0000000000000000
SigBlk: 0000000000000000
SigIgn: 8000000000000000
SigCgt: 000000030002c007
CapInh: 0000000000000000
CapPrm: 00000000fffffeff
CapEff: 00000000fffffeff

mkhppa3:/proc/11859# cat stat
11859 (make) R 11333 11363 1527 34817 11363 0 3237 31730 180 14620=20
704315 31 1827 382 15 0 0 0 17837321 2764800 458 18446744073709551615=20
65536 265672 3220182224 3220191360 152663 0 0 0 180231 3735928559 0 0=20
18 1
mkhppa3:/proc/11859# cat statm
456 456 163 33 6 417 293


telnet> send break
SysRq : Show State

                                  free                        sibling
   task                 PC        stack   pid father child younger older
init          {{ flush_scheduled_tasks }} S 0000000000abcdef   112    =20=

1      0   978       3       (NOTLB)
keventd       {{ do_fork }} S 0000000000abcdef   112     2     =20
1             8       (L-TLB)
ksoftirqd_CPU {{ do_fork }} S 0000000000abcdef   112     3     =20
0             4     1 (L-TLB)
ksoftirqd_CPU {{ do_fork }} S 0000000000abcdef   112     4     =20
0             5     3 (L-TLB)
kswapd        {{ do_fork }} S 0000000000abcdef   112     5     =20
0             6     4 (L-TLB)
bdflush       {{ do_fork }} S 0000000000abcdef   112     6     =20
0             7     5 (L-TLB)
kupdated      {{ __wait_on_buffer }} S 0000000000abcdef   112     7     =20=

0                   6 (L-TLB)
kjournald     {{ __wait_on_buffer }} S 0000000000abcdef   112     8     =20=

1            72     2 (L-TLB)
kjournald     {{ __wait_on_buffer }} S 0000000000abcdef     0    71     =20=

1            95    72 (L-TLB)
kjournald     {{ __wait_on_buffer }} S 0000000000abcdef   112    72     =20=

1            71     8 (L-TLB)
portmap       {{ __wait_on_buffer }} S 0000000000abcdef     0    95     =20=

1           140    71 (NOTLB)
syslogd       {{ __wait_on_buffer }} D 0000000000abcdef   112   140     =20=

1           143    95 (NOTLB)
klogd         {{ ___wait_on_page }} S 0000000000abcdef   112   143     =20=

1           147   140 (NOTLB)
rpc.statd     {{ __wait_on_buffer }} S 0000000000abcdef   112   147     =20=

1           152   143 (NOTLB)
inetd         {{ do_fork }} S 0000000000abcdef   112   152     =20
1           161   147 (NOTLB)
sshd          {{ __lock_page }} S 0000000000abcdef   112   161      1=20
15428     164   152 (NOTLB)
ntpd          {{ __wait_on_buffer }} S 0000000000abcdef   112   164     =20=

1           167   161 (NOTLB)
rpc.nfsd      {{ __lock_page }} S 0000000000abcdef   112   167     =20
1           170   164 (NOTLB)
rpc.mountd    {{ do_fork }} S 0000000000abcdef   112   170     =20
1           173   167 (NOTLB)
cron          {{ __wait_on_buffer }} S 0000000000abcdef   112   173     =20=

1           987   170 (NOTLB)
setiathome    {{ __wait_on_buffer }} R 0000000000abcdef   112   978     =20=

1                 979 (NOTLB)
setiathome    {{ sleep_on }} R   current task       0   979     =20
1           978   987 (NOTLB)
getty         {{ ___wait_on_page }} S 0000000000abcdef   112   987     =20=

1           979   173 (NOTLB)
sshd          {{ __lock_page }} S 0000000000abcdef     0  1526    161 =20=

1527   15428       (NOTLB)
bash          {{ do_fork }} S 0000000000abcdef     0  1527   1526 =20
1532               (NOTLB)
bash          {{ __wait_on_buffer }} S 0000000000abcdef     0  1532  =20
1527 11363               (NOTLB)
isobuild.sh   {{ do_fork }} S 0000000000abcdef     0 11363   1532=20
11389               (NOTLB)
dpkg-buildpac {{ do_fork }} S 0000000000abcdef     0 11389  11363=20
11532               (NOTLB)
rules         {{ do_fork }} S 0000000000abcdef     0 11532  11389=20
17219               (NOTLB)
sshd          {{ do_fork }} S 0000000000abcdef     0 15428    161=20
15445          1526 (NOTLB)
bash          {{ __wait_on_buffer }} S 0000000000abcdef     0 15445 =20
15428 12119               (NOTLB)
sh            {{ do_fork }} S 0000000000abcdef     0 17219  11532 =20
3675               (NOTLB)
rules         {{ do_fork }} S 0000000000abcdef     0  3675  17219=20
11323               (NOTLB)
make          {{ do_fork }} S 0000000000abcdef   112 11323   3675=20
11333               (NOTLB)
make          {{ do_fork }} S 0000000000abcdef     0 11333  11323=20
11859               (NOTLB)
make          {{ do_fork }} R 0000000000abcdef   112 11859 =20
11333                     (NOTLB)
bash          {{ __wait_on_buffer }} S 0000000000abcdef     0 12119 =20
15445                     (NOTLB)




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Thibaut VARENE wrote:
> hangs occured (SysRq 't', Ryan modified), take a look at:
> http://pateam.esiee.fr/archive/mails/
> 
> and read the *SMPHangReport* files...

ah - thanks for saving those.
Here's another crash we just got last night on the A500-6X.

grant


-pa52 kernel panic'd at 22:07
running gcc1 test in background
ran two cvs updates on the kernel.

Kernel Fault: Code=26 regs=0000000012a2cd40 (Addr=0000000010112738)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000100001110 Not tainted
r00-03  0000000000000000 0000000010421c10 00000000101869c4 0000000030c14010
r04-07  0000000030c14000 0000000010415410 0000000030c14010 0000000000000000
r08-11  0000000012a2ca48 000000000000000b 0000000000000000 0000000010415410
r12-15  000000000000000b 0000000000000000 0000000012a2ca80 0000000000000000
r16-19  0000000000000000 000000000000004a 0000000010490000 0000000000000001
r20-23  0000000010112738 0000000012a1b550 000000000800000f 000000000800000f
r24-27  0000000000000000 0000000030c14018 0000000012a1b540 0000000010415410
r28-31  0000000000000104 0000000012a2cd30 0000000012a2cd40 0000000010398840
sr0-3   0000000000005700 0000000000009780 0000000000000000 0000000000000080
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001013078c 0000000010130790
 IIR: 0e9512c0    ISR: 0000000000000000  IOR: 0000000010112738
 CPU:        0   CR30: 0000000012a2c000 CR31: 0000000010498000
 ORIG_R28: 000000001015ed00

GR02 0x101869c4 poll_freewait+3c
IOAQ 0x1013078c remove_wait_queue+1c



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On Wed, Jul 10, 2002 at 08:50:14AM -0600, Grant Grundler wrote:
> Thibaut VARENE wrote:
> > hangs occured (SysRq 't', Ryan modified), take a look at:
> > http://pateam.esiee.fr/archive/mails/
> > 
> > and read the *SMPHangReport* files...
> 
> ah - thanks for saving those.
> Here's another crash we just got last night on the A500-6X.
> 
> grant
> 
> 
> -pa52 kernel panic'd at 22:07
> running gcc1 test in background
> ran two cvs updates on the kernel.
> 
> Kernel Fault: Code=26 regs=0000000012a2cd40 (Addr=0000000010112738)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001000000000100001110 Not tainted
> r00-03  0000000000000000 0000000010421c10 00000000101869c4 0000000030c14010
> r04-07  0000000030c14000 0000000010415410 0000000030c14010 0000000000000000
> r08-11  0000000012a2ca48 000000000000000b 0000000000000000 0000000010415410
> r12-15  000000000000000b 0000000000000000 0000000012a2ca80 0000000000000000
> r16-19  0000000000000000 000000000000004a 0000000010490000 0000000000000001
> r20-23  0000000010112738 0000000012a1b550 000000000800000f 000000000800000f
> r24-27  0000000000000000 0000000030c14018 0000000012a1b540 0000000010415410
> r28-31  0000000000000104 0000000012a2cd30 0000000012a2cd40 0000000010398840
> sr0-3   0000000000005700 0000000000009780 0000000000000000 0000000000000080
> sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001013078c 0000000010130790
>  IIR: 0e9512c0    ISR: 0000000000000000  IOR: 0000000010112738
>  CPU:        0   CR30: 0000000012a2c000 CR31: 0000000010498000
>  ORIG_R28: 000000001015ed00
> 
> GR02 0x101869c4 poll_freewait+3c
> IOAQ 0x1013078c remove_wait_queue+1c

0000000000000000 <remove_wait_queue>:
   0:   00 01 0e 76     rsm 1,r22
   4:   0f 40 11 d3     ldcw 0(sr0,r26),r19
   8:   86 60 20 3a     cmpib,=,n 0,r19,2c <remove_wait_queue+0x2c>
   c:   53 35 00 20     ldd 10(r25),r21
  10:   53 34 00 30     ldd 18(r25),r20
  14:   34 13 00 02     ldi 1,r19
  18:   0e b4 12 d0     std r20,8(sr0,r21)
  1c:   0e 95 12 c0     std r21,0(sr0,r20)
  20:   0f 53 12 80     stw r19,0(sr0,r26)
  24:   00 16 18 60     mtsm r22
  28:   e8 40 d0 02     bve,n (rp)


The address it is trying to store to is 0x10112738, which is kernel
_code_ space.

void remove_wait_queue(wait_queue_head_t *q, wait_queue_t * wait)

so either r25 (= wait) is wrong, or the wait_queue_t it points at is
corrupt.  r25 is 0x3....... don't know what is up there; vmalloc'ed
memory?

Richard




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> > -pa52 kernel panic'd at 22:07
> > running gcc1 test in background

In hacking gcc this morning trying to fix a bug in loading 64-bit
constants, I seem to have achieved a state where the gcc build crashes
gsyprf11 in a deterministic manner.  It's gone down three times.
It only takes a few seconds after the build starts for the machine
to crash.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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> > > -pa52 kernel panic'd at 22:07
> > > running gcc1 test in background
> 
> In hacking gcc this morning trying to fix a bug in loading 64-bit
> constants, I seem to have achieved a state where the gcc build crashes
> gsyprf11 in a deterministic manner.  It's gone down three times.
> It only takes a few seconds after the build starts for the machine
> to crash.

Moving the code to hpux11, this is the error that causes the crash:

stage1/xgcc -Bstage1/ -B/opt/gnu/hppa2.0w-hp-hpux11.11/bin/ -c -DIN_GCC    -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H    -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/cfgbuil
d.c -o cfgbuild.o
Pi 16528 received a SIGSEGV for stck growth ailure.
Possible caues: insufficient memory or swap space,
or stack size exceeded maxssiz. 
xgcc: Internal error: Segmentation fault (program cc1)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)



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Subject: Re: [parisc-linux] harmony driver on k210/819
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On Wednesday 10 July 2002 08:48, Stephan Trajkoff wrote:
> Hello, on kernel 2.4.18-pa52, i compiled harmony sound blaster
> in dmesg the sound blaster is detected
> but when I start mpg123 blahblah.mp3 the output is Illegal operation

Works for me. Have you tried updating mpg123 ?

pa64:~# dmesg | grep Harmony
Lasi Harmony Audio driver V0.9a, h/w id 20, rev. 0 at 0xf0104000, IRQ 82

pa64:~# uname -a
Linux pa64 2.4.18-pa53 #249 Tue Jul 9 21:27:22 CEST 2002 parisc unknown

pa64:~# dpkg -l mpg123
||/ Name                   Version                Description
+++-======================-======================-============================================================
ii  mpg123                 0.59r-8                MPEG layer 1/2/3 audio player

Greetings,
Helge



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On Wed, 10 Jul 2002, Jeremy Drake wrote:

> I will look at the tgz and also cvs update tomorrow when I get in the same 
> building with the box, and send uname -a and .config, and also any 
> observations I can make of the box when I get to it (any messages on the 
> LCD, any ser pim output that it may have, any log messages)...  Next time 
> I'll leave a serial console open to it :)

The LCD screen reads "OFF 0000:".  This is a new one for me :)

uname -a says "Linux krakatoa 2.4.18-pa53 #1 SMP Tue Jul 9 14:38:41 PDT 
2002 parisc unknown"

The last smp kernel to work is:
krakatoa:~# dpkg-deb -I kernel-image-2.4.17-32-smp_23.1_hppa.deb
 new debian package, version 2.0.
 size 2945664 bytes: control archive= 19355 bytes.
     836 bytes,    20 lines      control
   52806 bytes,  1626 lines   *  postinst             #!/usr/bin/perl
    8679 bytes,   226 lines   *  postrm               #!/usr/bin/perl
    8595 bytes,   219 lines   *  preinst              #!/usr/bin/perl
    6591 bytes,   211 lines   *  prerm                #!/usr/bin/perl
 Package: kernel-image-2.4.17-32-smp
 Version: 23.1
 Section: base
 Priority: optional
 Architecture: hppa
 Depends: initrd-tools (>= 0.1.6), fileutils (>= 4.0), modutils (>= 
2.3.12)
 Suggests: palo
 Provides: kernel-image,  kernel-image-2.4
 Installed-Size: 8268
 Maintainer: Bdale Garbee <bdale@gag.com>
 Source: kernel-image-2.4.17-hppa
 Description: 32 bit SMP Linux kernel image for version 2.4.17 on HPPA.
  This package contains the 32 bit SMP Linux kernel image for version
  2.4.17 on HPPA, the corresponding System.map file, and the modules built
  by the packager.  It also contains scripts that try to ensure that the
  system is not left in a unbootable state after an update.
  .
  Kernel image packages are generally produced using kernel-package,
  and it is suggested that you install that package if you wish to
  create a custom kernel.

The log just stops and picks up again when I rebooted.

You can get the .deb for the smp kernel that I build from 
http://linux.apptechsys.com/~jeremyd/kernel-image-2.4.18-pa53_jeremyd.200207091430.smp_hppa.deb

Here's the output of ser pim for the one that has the right date/time 
stamp.  Looks like another "runway broad error" -- broad seems to be short 
for broadcast.
-----------------  Processor 1 HPMC Information ------------------

Timestamp =
  Tue Jul  9 22:21:13 GMT 2002    (20:02:07:09:22:21:13)

HPMC Chassis Codes = 2cbf0  25108  2cbfb

General Registers 0 - 31
00-03   0000000000000000  000000001034cf20  000000001010090c  
0000000000000000
04-07   0000000000354000  00000000f0400008  00000000000000fa  
00000000f0002f68
08-11   0000000000000000  0000000000000000  000000000004000e  
0000000010393408
12-15   00000000000000f2  0000000000000001  0000000000000001  
00000000000000f3
16-19   0000000002020202  0000000000000002  00000000f000016c  
000000001117c000
20-23   0000000000000000  00000000103262a0  0000000010347804  
0000000000000000
24-27   00000000103478e0  0000000000000032  0000000000000019  
0000000010326010
28-31   0000000000000000  0000000000000010  000000001117c6c0  
00000000103478e0

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
08-11   0000000000000114  0000000000000000  00000000000000c0  
000000000000001e
12-15   0000000000000000  0000000000000000  0000000000106000  
00000000ff000000
16-19   000005b532c52d74  0000000000000000  000000001010090c  
0000000003c008b3
20-23   0000000000000000  0000000000000000  000000000006ff0f  
0000000000000000
24-27   0000000000354000  000000001f778000  0000000000044021  
00000000f0412000
28-31   0000000055555555  0000000055555555  000000001117c000  
0000000011111111
Space Registers 0 - 7

00-03   00000000          0000008a          00000000          0000008a
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000010100910
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030000d
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffffa2000
System Requestor Address     = 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000  
0000000000000000
04-07   2ffba00000000001  000000011015fa10  1035305000000000  
11174000103e8000
08-11   1035305000000002  ffffffff0000000a  10101fc000000000  
103ffdb300000000
12-15   0000000010347810  1117469010148340  1034781010353640  
11174000103e8000
16-19   2ffba00011174000  0000000000000002  000000001034b010  
1034781010346810
20-23   1034701010347810  103478102ffba000  cccccccd51eb874f  
0000000333333334
24-27   b38cf9b100000450  0000000600000000  0000000f102f46a8  
2ffba005102f46b4
28-31   3031323334353637  38396162101485e8  6768696a6b6c6d6e  
6f70717273747576

'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81841000000000
Available Memory             = 0x0000000020000000
CPU Diagnose Register 2      = 0x0201010000000004
CPU Status Register 0        = 0x3440c24000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x4800000000000000
Read Short LOG               = 0xc1af00fffed30000
ERROR_STATUS                 = 0x0000000000100010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0x020008bc36a20000
RUN_DATA_LOW                 = 0xe840c002000014bc
RUN_CTRL                     = 0x0000005c00001658
RUN_ADDR                     = 0xc13ff0f0f0002b48
System Responder Path        = 0x00ffffffffffffff

HPMC PIM Analysis Information:

Timestamp =
  Tue Jul  9 22:21:13 GMT 2002    (20:02:07:09:22:21:13)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 
bytes:

CPU 1 observed a Broadcast Error on the Runway Bus.


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not 
log
any additional information about the HPMC.

-----------------  Processor 1 LPMC Information ------------------

Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

-----------------  Processor 1 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  
0000000000000000

<Press any key to continue (q to quit)>

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  
0000000000000000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000000000
CPU State                    = 0x00000000

Memory Error Log Information:

Timestamp =
  Tue Jul  9 22:21:13 GMT 2002    (20:02:07:09:22:21:13)


'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:

   No memory errors logged


I/O Module Error Log Information:

Timestamp =
  Tue Jul  9 22:21:13 GMT 2002    (20:02:07:09:22:21:13)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc229   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    0x00000000   0x4e0cc009   0x00000000fed38048
   5    ----------   0x5e0cc009   ------------------
   6    0x00000000   0x6e0cc009   0x00000000fed3c048
   7    ----------   0x7e0cc009   ------------------


> 
> > 
> > thanks,
> > grant
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> 
> 

-- 
	NEW YORK-- Kraft Foods, Inc. announced today that its board of
directors unanimously rejected the $11 billion takeover bid by Philip
Morris and Co. A Kraft spokesman stated in a press conference that the
offer was rejected because the $90-per-share bid did not reflect the
true value of the company.
	Wall Street insiders, however, tell quite a different story.
Apparently, the Kraft board of directors had all but signed the takeover
agreement when they learned of Philip Morris' marketing plans for one of
their major Middle East subsidiaries.  To a person, the board voted to
reject the bid when they discovered that the tobacco giant intended to
reorganize Israeli Cheddar, Ltd., and name the new company Cheeses of Nazareth.





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Quoting James Braid <james.braid@peace.com>:

> > For my part I would like to test RAID-1 on my B180 (2 of 9Gb).
> > Could you let me know more on the RAID configuration you implemented?
> > Do you have a special slice (partition) for your F0 (parisc 
> > bootloader) 
> > and may be also for /boot?
> 
> My RAID config is just a 2-disk RAID-0 array for testing at the moment.
> Heres the raidtab (probably not a lot of use to you though):
> 
> ----
> 
> raiddev                 /dev/md0
> raid-level              0
> nr-raid-disks           2
> chunk-size              4
> 
> device                  /dev/sdb1
> raid-disk               0
> device                  /dev/sdc1
> raid-disk               1
> 
> ----
> 
> Theres a RAID-1 root howto for Debian which I have used in the past
> here: http://www.james.rcpt.to/programs/debian/raid1/ 
> 
Very interesting.

Many thanks,
    Joel


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From: Patrick Caulfield <patrick@tykepenguin.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] O_DIRECT on devices
Date: Thu, 11 Jul 2002 09:22:59 +0100
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I'm currently working on LVM2 and we want to use O_DIRECT to write the metadata
from userspace. so I open a partition with O_DIRECT and try to read/write the
data from an aligned buffer.

This works fine on Alpha & Intel but seems very unreliable on parisc for some
reason. Sometimes it works, sometimes it oopses "do_page_fault() pid=2120
command='lvm' type=15 address=0x00000001" and sometimes I just get back the
wrong information (at least LVM thinks its wrong I haven't check in detail just
what is up with it).

I haven't tried writing yet - I'd rather not think what might happen to my disk
just ATM :)

This is a C110 with 256meg of memory running 2.4.18-pa46

patrick




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Subject: Re: [parisc-linux] O_DIRECT on devices
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Xref: news.gmane.org gmane.linux.ports.parisc:15399

On Thu, Jul 11, 2002 at 11:09:31AM +0200, Rodolfo Baselli wrote:
> Patrick Caulfield wrote:
> >I'm currently working on LVM2 and we want to use O_DIRECT to write the 
> >metadata
> >from userspace. so I open a partition with O_DIRECT and try to read/write 
> >the
> >data from an aligned buffer.
> 
> Hmmm, so is LVM ready for HP PA-RISC Linux? WOW!

LVM2 works fine - I use it all the time on my HP and Alpha boxes. O_DIRECT is an
optimisation I would like to have in there though cos it avoids a lot of
buffer-cache nastiness when clustering (yes, I'm working on that too but that
bit won't be GPLed)

 
> By the way, I'm reading right now "The catcher in the rye" by J.D. 
> Salinger, and as I glanced at your 2nd name I felt like I was still 
> reading the book! :-)))

:-)


If you were a pop-art expert you might have got even more deja-vu !
http://www.postershop.com/Caulfield-Patrick/Caulfield-Patrick-After-Lunch-2405657.html

I blame my parents...

patrick




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From: Dimitris Zilaskos <dzila@tassadar.physics.auth.gr>
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Subject: [parisc-linux] x windows keybord problem on 715/33
Date: Thu, 11 Jul 2002 18:50:40 +0300 (EEST)
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Xref: news.gmane.org gmane.linux.ports.parisc:15400

 Hello ,

I am trying to setup X windows in an 715/33 . I can start various Windows
managers like wdm and xdm , but i cant get keys 'i' and 'o' to work (
they work ok in console ).All other keys work ok .

 I have the following lines in the XF86Config

   Option "XkbdRules" "xfree86"
   Option "XkbModel" "hphil"


 and in my  /etc/X11/xkb/rules/xfree86:
     hp = xfree86 pc(pc104)
     hphil = hp(hil) hp(hil)

 I am running 2.4.18-pa41 . Newer kernels till 54 either freeze my
keyboard or have ksoftirqd consume 100% cpu ( or both) . I am using a
serial  mouse for X . It works  most of the time but sometines the pointer
stops moving untill I press a key . Work ok under console though .

 Any advice how to make 'o' and 'i'  work ?

 Regards ,
--
=============================================================================

Dimitris Zilaskos

Department of Physics @ Aristotle Univercity of Thessaloniki , Greece
=============================================================================




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Subject: RE: [parisc-linux] L2000 stable with SMP and RAID
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Xref: news.gmane.org gmane.linux.ports.parisc:15401

Hi James,

Quoting James Braid <james.braid@peace.com>:

> > For my part I would like to test RAID-1 on my B180 (2 of 9Gb).
> > Could you let me know more on the RAID configuration you implemented?
> > Do you have a special slice (partition) for your F0 (parisc 
> > bootloader) 
> > and may be also for /boot?
> 
> My RAID config is just a 2-disk RAID-0 array for testing at the moment.
> Heres the raidtab (probably not a lot of use to you though):
> 
> ----
> 
> raiddev                 /dev/md0
> raid-level              0
> nr-raid-disks           2
> chunk-size              4
> 
> device                  /dev/sdb1
> raid-disk               0
> device                  /dev/sdc1
> raid-disk               1
> 
> ----
> 
> Theres a RAID-1 root howto for Debian which I have used in the past
> here: http://www.james.rcpt.to/programs/debian/raid1/ 
> 
Thanks to this, I build on my second disk 
sdb1    (a F0 slice of about 16Mb)
sdb2    swap (128Mb == Physical memory size)
sdb3    /boot (about 64Mb to be able to test severall kernels)
sdb5 => md0   /      (about 1.5 Gb)

modify fstab to replace my boot device by /dev/md0;
modify palo.conf to make this disk bootable and find its kernel into /boot
partition and that works.

I just now have to complete the raidtab configuration and recover the rest of my
own slices than finaly fully rebuild md in non degraded mode and a small script
to duplicate F0 and boot slices (not yet supported as md AFAIK).

Many thanks again for your help,
    Joel


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From: "Stephan Trajkoff" <stephan@itp.bg>
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Subject: [parisc-linux] Not working PHP, security hole
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Please admins of parisc-linux to fix their problem
<?
$_db_host=3D"localhost";
#$_db_host=3D"puffin.external.hp.com";
$_db_user=3D"parisc";
$_db_password=3D"parisc";
$_db_database=3D"hw";
$_db_connection=3D"_db_unconnected";

$_db_result=3D"";
$_db_row=3D"";

Function connectDatabase(){
 global $_db_host;
 global $_db_user;
 global $_db_password;
 global $_db_connection;
 if($_db_connection=3D=3D"_db_unconnected"){
  $_db_connection=3Dmysql_connect
($_db_host,$_db_user,$_db_password);
  }
 }

Function queryDatabase($query){
 global $_db_database;
 global $_db_result;
 $_db_result =3D mysql_db_query($_db_database,$query);
 return $_db_result;
 }

Function nextRow($result =3D "_db_unset"){
 global $_db_result;
 global $_db_row;

 if($result=3D=3D"_db_unset"){
  $_db_row =3D mysql_fetch_object($_db_result);
  }
 elseif(is_integer($result)){
  $_db_row =3D mysql_fetch_object($result);
  }
 else {
  return "";
  }
 return $_db_row;
 }

Function numRows($result =3D "_db_unset"){
 global $_db_result;

 if($result=3D=3D"_db_unset"){
  return mysql_num_rows($_db_result);
  }
 elseif(is_integer($result)){
  return mysql_num_rows($result);
  }
 return "";
 }

Function disconnectDatabase(){
 global $_db_result;
 global $_db_connection;
 mysql_free_result($_db_result);
 mysql_close($_db_connection);
 }

Function insertId(){
 return mysql_insert_id();
 }

Function escapeString($instring){
 return AddSlashes($instring);
 }
?>
use apachetoolbox to compile apache php mysql
www.apachetoolbox.com

-------------------------------------------------------------------
-->> Add WEB ACCESS to your POP email accounts with
-->> FREE Perl CGI scripts! Download today! http://www.adjeweb.com
-------------------------------------------------------------------


From - Thu Nov 08 21:23:32 2018
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Subject: Re: [parisc-linux] Not working PHP, security hole
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"Stephan Trajkoff" writes...

> Please admins of parisc-linux to fix their problem

We're upgrading it today. It will be fixed shortly.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation




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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Not working PHP, security hole
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In reference to a message from Stephan Trajkoff, dated Jul 11:
> Please admins of parisc-linux to fix their problem

thanks for posting the passwords to the mailing list :-/

the admins are fixing things now.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Andreas Seltenreich <s_selten@informatik.uni-karlsruhe.de>
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Subject: Re: [parisc-linux] x windows keybord problem on 715/33
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Hallo Dimitris,
	
* Dimitris Zilaskos <dzila@tassadar.physics.auth.gr> [2002-07-11 17:51]:
> I am trying to setup X windows in an 715/33 . I can start various Windows
> managers like wdm and xdm , but i cant get keys 'i' and 'o' to work (
> they work ok in console ).All other keys work ok .

I had the same symptoms with a german ps2 keyboard on a 712, just with other
keys beeing dead (<, > and |).

xev showed that X is getting keycodes from those keys, but they were
not alligned.
I changed the keycodes in /etc/X11/xkb/keycodes/xfree86 according to the
ones xev reported. I guess in your case you would have to change them to:

<AD08> = code reported for i
<AD09> = code reported for o

Could also be that the cause for your dead keys is another 
and this hint totally useless.

regards,
	andreas


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Subject: Re: [parisc-linux] x windows keybord problem on 715/33
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Hi Dimitris,

please read ftp://ftp.parisc-linux.org/XFree86/HILkeyb/README

In any case I would suggest you update to a newer kernel.
HIL mice are now supported, and you won't have any bigger problems 
on the console or under X. Just be sure to create the /dev/input/*
device nodes as described in the FAQ entry no. 12 at 
http://www.parisc-linux.org/faq/index.html

The 100% cpu usage for softirqd is a known problem, but
it's just cosmetics and will not slower your machine.
I think we will fix this buglet in the future.

Greetings,
Helge

On Thursday 11 July 2002 17:50, Dimitris Zilaskos wrote:
>  Hello ,
>
> I am trying to setup X windows in an 715/33 . I can start various Windows
> managers like wdm and xdm , but i cant get keys 'i' and 'o' to work (
> they work ok in console ).All other keys work ok .
>
>  I have the following lines in the XF86Config
>
>    Option "XkbdRules" "xfree86"
>    Option "XkbModel" "hphil"
>
>
>  and in my  /etc/X11/xkb/rules/xfree86:
>      hp = xfree86 pc(pc104)
>      hphil = hp(hil) hp(hil)
>
>  I am running 2.4.18-pa41 . Newer kernels till 54 either freeze my
> keyboard or have ksoftirqd consume 100% cpu ( or both) . I am using a
> serial  mouse for X . It works  most of the time but sometines the pointer
> stops moving untill I press a key . Work ok under console though .
>
>  Any advice how to make 'o' and 'i'  work ?
>
>  Regards ,
> --
> ===========================================================================
>==
>
> Dimitris Zilaskos
>
> Department of Physics @ Aristotle Univercity of Thessaloniki , Greece
> ===========================================================================
>==
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: [parisc-linux] Problem building gcc-3.2 (cvs head) on hppa-linux
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Trying to build CVS head (3.2 20020711) with:

configure --host=hppa-linux --build=hppa-linux --target=hppa64-linux
--enable-shared --disable-nls --enable-languages=c

I get:

/home/tausq/build/gcc-3.2/gcc/xgcc -B/home/tausq/build/gcc-3.2/gcc/ -B/home/tausq/opt/gnu/hppa64-linux/bin/ -B/home/tausq/opt/gnu/hppa64-linux/lib/ -isystem /home/tausq/opt/gnu/hppa64-linux/include -O2  -DIN_GCC -DCROSS_COMPILE   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include  -fPIC -Dpa64=1 -DELF=1 -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I.
-I. -I/home/tausq/src/gcc-3.2/gcc -I/home/tausq/src/gcc-3.2/gcc/. -I/home/tausq/src/gcc-3.2/gcc/config -I/home/tausq/src/gcc-3.2/gcc/../include  -DL__gcc_bcmp -c /home/tausq/src/gcc-3.2/gcc/libgcc2.c -o libgcc/./__gcc_bcmp.o
/home/tausq/src/gcc-3.2/gcc/unwind-dw2.c: In function `uw_frame_state_for':
/home/tausq/src/gcc-3.2/gcc/unwind-dw2.c:906: warning: implicit declaration of function `memset'
/home/tausq/src/gcc-3.2/gcc/unwind-dw2.c: In function `uw_install_context_1':
/home/tausq/src/gcc-3.2/gcc/unwind-dw2.c:1193: warning: implicit declaration of
function `memcpy'
In file included from /home/tausq/src/gcc-3.2/gcc/unwind-dw2.c:1210:
/home/tausq/src/gcc-3.2/gcc/unwind.inc: In function `_Unwind_RaiseException':
/home/tausq/src/gcc-3.2/gcc/unwind.inc:132: error: Attempt to delete prologue/epilogue insn:
(insn 337 336 338 14 (nil) (set (reg:DI 7 %r7)
        (mem:DI (plus:DI (reg/f:DI 30 %r30)
                (const_int -296 [0xfffffffffffffed8])) [0 S8 A64])) -1 (nil)
    (nil))
/home/tausq/src/gcc-3.2/gcc/unwind.inc:132: internal compiler error: Internal compiler error in propagate_one_insn, at flow.c:1637
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[2]: *** [libgcc/./unwind-dw2.o] Error 1
make[2]: Leaving directory `/home/tausq/build/gcc-3.2/gcc'
make[1]: *** [libgcc.a] Error 2
make[1]: Leaving directory `/home/tausq/build/gcc-3.2/gcc'
make: *** [all-gcc] Error 2

The bootstrapping compiler is gcc-3.0.4

any ideas?
randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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  Thank you all guys for the tips , I will give them a try . And
congratulations to all those developing PA-Linux for their excellent
work.

 Regards ,

--
=============================================================================

Dimitris Zilaskos

Department of Physics @ Aristotle Univercity of Thessaloniki , Greece
=============================================================================



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I seem to recall some reports that you cannot build a working kernel
with gcc-3.1....

Well, maybe they've changed things upstream, but I just tried with
gcc-3.1.1 (3.1.1 20020708 snapshot) and it seems to work well, at least
with my limited testing... this is with the debian default 64-bit smp
.config.

I did have to hack up a bunch of code... it seems like gcc-3.1.1 doesn't
like this construct:

typedef struct {
        volatile unsigned int __attribute__((aligned(16))) lock;
} spinlock_t;

typedef struct {
        spinlock_t lock;
        volatile unsigned int count;
} rwlock_t;

rwlock_t foo = (rwlock_t) { (spinlock_t) { 1 }, 0 };

it complains that the initializer is not constant in this case. 
removing the (rwlock_t) cast fixed that....

also it doesn't like it when you have a variable and you initialize it
after declaration with the { (spinlock_t) { 1 }, 0 } stuff...

(e.g. 
rwlock_t foo;

foo = { (spinlock_t) { 1 }, 0 };

gives a "parse error at {" message)

after working through these problems i got a working kernel...

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] compiling kernels with gcc-3.1
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Hi Randolph,

I am on going to build mirroring on my test server.
But I will test it asap (as I already cvs update gcc-3.1.. ) and let you inform.

Thanks a lot for info,
Joel 

PS: Can you do a telnet or an ssh connection when this kernel is running? IIRC
as well as gcc-3.1 as gcc-3.2, I always reach well to build and boot kernels
(without kdb) but the system crashes as soon as you try to connect it via the
network.

Quoting Randolph Chung <randolph@tausq.org>:

> I seem to recall some reports that you cannot build a working kernel
> with gcc-3.1....
> 
> Well, maybe they've changed things upstream, but I just tried with
> gcc-3.1.1 (3.1.1 20020708 snapshot) and it seems to work well, at least
> with my limited testing... this is with the debian default 64-bit smp
> .config.
> 
> I did have to hack up a bunch of code... it seems like gcc-3.1.1
> doesn't
> like this construct:
> 
> typedef struct {
>         volatile unsigned int __attribute__((aligned(16))) lock;
> } spinlock_t;
> 
> typedef struct {
>         spinlock_t lock;
>         volatile unsigned int count;
> } rwlock_t;
> 
> rwlock_t foo = (rwlock_t) { (spinlock_t) { 1 }, 0 };
> 
> it complains that the initializer is not constant in this case. 
> removing the (rwlock_t) cast fixed that....
> 
> also it doesn't like it when you have a variable and you initialize it
> after declaration with the { (spinlock_t) { 1 }, 0 } stuff...
> 
> (e.g. 
> rwlock_t foo;
> 
> foo = { (spinlock_t) { 1 }, 0 };
> 
> gives a "parse error at {" message)
> 
> after working through these problems i got a working kernel...
> 
> randolph
> --  
> Randolph Chung
> Debian GNU/Linux Developer, hppa/ia64 ports
> http://www.tausq.org/
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


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do anyone runs XFREE86 on STI? I have K210/819 HP
the error is FBIOPUT_VSCREENINFO: invalid argument
can anyone send me configuration file for X with STI working...?

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Subject: Re: [parisc-linux] XFree86 on STI 819/K210
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On Friday 12 July 2002 14:06, Stephan Trajkoff wrote:
> do anyone runs XFREE86 on STI? I have K210/819 HP
> the error is FBIOPUT_VSCREENINFO: invalid argument
> can anyone send me configuration file for X with STI working...?

I think you should check the screen resolutions in your XF86Config-4.

ftp://ftp.parisc-linux.org/XFree86/XF86Config-4 is one example
and you should change it to have the correct Modelines as described
at the top in this file.

Greetings,
Helge



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> Trying to build CVS head (3.2 20020711) with:
> 
> configure --host=hppa-linux --build=hppa-linux --target=hppa64-linux
> --enable-shared --disable-nls --enable-languages=c
> 
> I get:
> 
> /home/tausq/build/gcc-3.2/gcc/xgcc -B/home/tausq/build/gcc-3.2/gcc/ -B/home/tausq/opt/gnu/hppa64-linux/bin/ -B/home/tausq/opt/gnu/hppa64-linux/lib/ -isystem /home/tausq/opt/gnu/hppa64-linux/include -O2  -DIN_GCC -DCROSS_COMPILE   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include  -fPIC -Dpa64=1 -DELF=1 -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I.
> -I. -I/home/tausq/src/gcc-3.2/gcc -I/home/tausq/src/gcc-3.2/gcc/. -I/home/tausq/src/gcc-3.2/gcc/config -I/home/tausq/src/gcc-3.2/gcc/../include  -DL__gcc_bcmp -c /home/tausq/src/gcc-3.2/gcc/libgcc2.c -o libgcc/./__gcc_bcmp.o
> /home/tausq/src/gcc-3.2/gcc/unwind-dw2.c: In function `uw_frame_state_for':
> /home/tausq/src/gcc-3.2/gcc/unwind-dw2.c:906: warning: implicit declaration of function `memset'
> /home/tausq/src/gcc-3.2/gcc/unwind-dw2.c: In function `uw_install_context_1':
> /home/tausq/src/gcc-3.2/gcc/unwind-dw2.c:1193: warning: implicit declaration of
> function `memcpy'
> In file included from /home/tausq/src/gcc-3.2/gcc/unwind-dw2.c:1210:
> /home/tausq/src/gcc-3.2/gcc/unwind.inc: In function `_Unwind_RaiseException':
> /home/tausq/src/gcc-3.2/gcc/unwind.inc:132: error: Attempt to delete prologue/epilogue insn:
> (insn 337 336 338 14 (nil) (set (reg:DI 7 %r7)
>         (mem:DI (plus:DI (reg/f:DI 30 %r30)
>                 (const_int -296 [0xfffffffffffffed8])) [0 S8 A64])) -1 (nil)
>     (nil))
> /home/tausq/src/gcc-3.2/gcc/unwind.inc:132: internal compiler error: Internal compiler error in propagate_one_insn, at flow.c:1637
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
> make[2]: *** [libgcc/./unwind-dw2.o] Error 1
> make[2]: Leaving directory `/home/tausq/build/gcc-3.2/gcc'
> make[1]: *** [libgcc.a] Error 2
> make[1]: Leaving directory `/home/tausq/build/gcc-3.2/gcc'
> make: *** [all-gcc] Error 2
> 
> The bootstrapping compiler is gcc-3.0.4

Yes.  This is one of the manifestations of the the long call bug
in 3.0.4.  You need to use "-O2" in STAGE1_CFLAGS to work around
it or use gcc 3.1 later as a bootstrap compiler.  You will have
the same problem if you try to rebuild 3.0.x.  There is a silent
miscompilation of expr.c if I remember correctly.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi Stepham

CC'ed to the list...

1. Yes:
ii  xfree86-common 4.1.0-17       X Window System (XFree86) infrastructure
ii  xserver-xfree8 4.1.0-17       the XFree86 X server

2. Did you checheck the "Mode"- line ? 
What does "dmesg | grep stifb" says ?

Helge

On Friday 12 July 2002 14:39, Stephan Trajkoff wrote:
> I get the same error again,
> can I run XFRee with only installed xserver-common and
> xserver-xfree86?
>
> -------- Original Message --------
>
> ==> From: Helge Deller <helge.deller@sap.com>
> ==> Date: Fri, 12 Jul 2002 14:10:49  0200
>
> On Friday 12 July 2002 14:06, Stephan Trajkoff wrote: > do anyone
> runs XFREE86 on STI? I have K210/819 HP > the error is
> FBIOPUT_VSCREENINFO: invalid argument > can anyone send me
> configuration file for X with STI working...?
>
> I think you should check the screen resolutions in your XF86Config-4.
>
> ftp://ftp.parisc-linux.org/XFree86/XF86Config-4 is one example and
> you should change it to have the correct Modelines as described at
> the top in this file.
>
> Greetings, Helge



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> PS: Can you do a telnet or an ssh connection when this kernel is running? IIRC
> as well as gcc-3.1 as gcc-3.2, I always reach well to build and boot kernels
> (without kdb) but the system crashes as soon as you try to connect it via the
> network.

yes, i can ssh into the box.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Quoting Randolph Chung <randolph@tausq.org>:

> > PS: Can you do a telnet or an ssh connection when this kernel is
> running? IIRC
> > as well as gcc-3.1 as gcc-3.2, I always reach well to build and boot
> kernels
> > (without kdb) but the system crashes as soon as you try to connect it
> via the
> > network.
> 
> yes, i can ssh into the box.
> 
Great news, I am impatient to also test it :)

Thanks a lot,
    Joel



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Hi All,

I build a raid-1 configuration starting from the internal disk sdb formated as
follow:
                                  cfdisk 2.11n

                              Disk Drive: /dev/sdb
                             Size: 9100044288 bytes
              Heads: 64   Sectors per Track: 32   Cylinders: 8678

    Name        Flags      Part Type  FS Type          [Label]        Size (MB)
 ------------------------------------------------------------------------------
    sdb1                    Primary   Linux/PA-RISC boot                  63.97
    sdb2                    Primary   Linux swap                         128.98
    sdb3                    Primary   Linux                              127.93
    sdb5                    Logical   Linux                             1664.10
    sdb6                    Logical   Linux                              255.86
    sdb7                    Logical   Linux                              127.93
    sdb8                    Logical   Linux                              127.93
    sdb9                    Logical   Linux                             2047.87
    sdb10                   Logical   Linux                             2047.87
    sdb11                   Logical   Linux                             2047.87
                            Logical   Free Space                         459.28

sdb3 being the /boot & sdb5 / fs.

then I copy this structure with sfdisk -d /dev/sdb | sfdisk /dev/sda (same size
but not the same supplier) and synchronize all mdi with respective disk slice.

All is ok. But still have to mirror manually quasi static slices: sdx1 (F0) and
sdx3 (/boot). So I umount /boot and made a dd from sdb3 to sda3 Ok and sdb1 to
sda1 Ok.

But when I try to boot from the mirror (ie sda) bootloader did not find the ipl
eventhought the copy of the two F0 slices (I can still boot from sdb)?

What do I wrong or better what should I have to resolve this problem?

Thanks in advance for advice,
    Joel


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Hi all,

On my b2000 with kernel pa44 I build tool chain without problem.

I upgrade this kernel to pa54 (in holliday for some days I could not do it step
by step).

Now when I try to rebuild toolchain it takes a long time and I notice (with top
and gkrellm) that some process went to D stat (uninterruptible sleep)during long
time (some time seems for ever: some find of updatedb).

Am I alone? What could I do?

Joel


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Subject: [parisc-linux] pa54 PS/2 mouse broken?
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Hi all,

On my b180 (on which I build my md mirror) mouse (PS/2) does not work any more
neither with gpm (release 1.19.6-12) neither with xfree86 (release
4.1.0-17)alone also (without gpm running) (I also test severall mouse knowing it
works on my 712). 

Thanks in advance for help,
    Joel




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> Yes.  This is one of the manifestations of the the long call bug
> in 3.0.4.  You need to use "-O2" in STAGE1_CFLAGS to work around
> it or use gcc 3.1 later as a bootstrap compiler.  You will have
> the same problem if you try to rebuild 3.0.x.  There is a silent
> miscompilation of expr.c if I remember correctly.

with gcc-3.1 as bootstrapping compiler:

$ gcc -v
Reading specs from /home/tausq/opt/gnu/lib/gcc-lib/hppa-linux/3.1.1/specs
Configured with: /home/tausq/src/gcc-20020708/configure --prefix=/home/tausq/opt/gnu --host=hppa-linux --build=hppa-linux --target=hppa-linux --enable-shared --disable-nls --enable-languages=c
Thread model: single
gcc version 3.1.1 20020708 (prerelease)


gcc -DIN_GCC -DCROSS_COMPILE   -g  -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H  -o cc1 \
        c-parse.o c-lang.o attribs.o c-errors.o c-lex.o c-pragma.o c-decl.o c-typeck.o c-convert.o c-aux-info.o c-common.o c-format.o c-semantics.o c-objc-common.o libcpp.a  main.o libbackend.a   ../libiberty/libiberty.a
/usr/bin/ld: libbackend.a(expr.o)(.text+0x3f660): cannot reach 000002bc_integer_zerop+0, recompile with -ffunction-sections
/usr/bin/ld: libbackend.a(expr.o)(.text+0x3f660): cannot handle R_PARISC_PCREL17F for integer_zerop
/usr/bin/ld: final link failed: Bad value
collect2: ld returned 1 exit status

i'll do a bit more digging later

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] pa54 PS/2 mouse broken? My mistake
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Oops My mistake (please accept my apologies).

After a change of the mouse and a reboot it works fine now.

Sorry for confusion,
    Joel

Quoting joel.soete@freebel.net:

> Hi all,
> 
> On my b180 (on which I build my md mirror) mouse (PS/2) does not work
> any more
> neither with gpm (release 1.19.6-12) neither with xfree86 (release
> 4.1.0-17)alone also (without gpm running) (I also test severall mouse
> knowing it
> works on my 712). 
> 
> Thanks in advance for help,
>     Joel
> 
> 
> 
> 
> -------------------------------------------------
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> > Yes.  This is one of the manifestations of the the long call bug
> > in 3.0.4.  You need to use "-O2" in STAGE1_CFLAGS to work around
> > it or use gcc 3.1 later as a bootstrap compiler.  You will have
> > the same problem if you try to rebuild 3.0.x.  There is a silent
> > miscompilation of expr.c if I remember correctly.
> 
> with gcc-3.1 as bootstrapping compiler:

Oops, only 3.2 has the long jump fix.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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and additional problem:
if I mount automaticaly /boot in /etc/fstab it is impossible to dismount this fs:

umount /boot
device busy

fuser -u /boot
/boot
No process references; use -v for the complete list
fuser -v /boot:

             USER       PID  ACCESS  COMMAND
/boot        root    kernel  mount   /boot

Any idea? (if I mount it manualy after the reboot no problem?)

Quoting joel.soete@freebel.net:

> Hi All,
> 
> I build a raid-1 configuration starting from the internal disk sdb
> formated as
> follow:
>                                   cfdisk 2.11n
> 
>                               Disk Drive: /dev/sdb
>                              Size: 9100044288 bytes
>               Heads: 64   Sectors per Track: 32   Cylinders: 8678
> 
>     Name        Flags      Part Type  FS Type          [Label]       
> Size (MB)
> 
> ------------------------------------------------------------------------------
>     sdb1                    Primary   Linux/PA-RISC boot                
>  63.97
>     sdb2                    Primary   Linux swap                        
> 128.98
>     sdb3                    Primary   Linux                             
> 127.93
>     sdb5                    Logical   Linux                            
> 1664.10
>     sdb6                    Logical   Linux                             
> 255.86
>     sdb7                    Logical   Linux                             
> 127.93
>     sdb8                    Logical   Linux                             
> 127.93
>     sdb9                    Logical   Linux                            
> 2047.87
>     sdb10                   Logical   Linux                            
> 2047.87
>     sdb11                   Logical   Linux                            
> 2047.87
>                             Logical   Free Space                        
> 459.28
> 
> sdb3 being the /boot & sdb5 / fs.
> 
> then I copy this structure with sfdisk -d /dev/sdb | sfdisk /dev/sda
> (same size
> but not the same supplier) and synchronize all mdi with respective disk
> slice.
> 
> All is ok. But still have to mirror manually quasi static slices: sdx1
> (F0) and
> sdx3 (/boot). So I umount /boot and made a dd from sdb3 to sda3 Ok and
> sdb1 to
> sda1 Ok.
> 
> But when I try to boot from the mirror (ie sda) bootloader did not find
> the ipl
> eventhought the copy of the two F0 slices (I can still boot from sdb)?
> 
> What do I wrong or better what should I have to resolve this problem?
> 
> Thanks in advance for advice,
>     Joel
> 
> 
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
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You got it in /etc/exports and running nfs?

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216


> -----Original Message-----
> From: joel.soete@freebel.net [mailto:joel.soete@freebel.net]=20
> Sent: Friday, July 12, 2002 1:05 PM
> To: parisc-linux@parisc-linux.org
> Subject: Re: [parisc-linux] MD problem
>=20
>=20
> and additional problem:
> if I mount automaticaly /boot in /etc/fstab it is impossible=20
> to dismount this fs:
>=20
> umount /boot
> device busy
>=20
> fuser -u /boot
> /boot
> No process references; use -v for the complete list
> fuser -v /boot:
>=20
>              USER       PID  ACCESS  COMMAND
> /boot        root    kernel  mount   /boot
>=20
> Any idea? (if I mount it manualy after the reboot no problem?)
>=20
> Quoting joel.soete@freebel.net:
>=20
> > Hi All,
> >=20
> > I build a raid-1 configuration starting from the internal disk sdb
> > formated as
> > follow:
> >                                   cfdisk 2.11n
> >=20
> >                               Disk Drive: /dev/sdb
> >                              Size: 9100044288 bytes
> >               Heads: 64   Sectors per Track: 32   Cylinders: 8678
> >=20
> >     Name        Flags      Part Type  FS Type         =20
> [Label]      =20
> > Size (MB)
> >=20
> >=20
> --------------------------------------------------------------
> ----------------
> >     sdb1                    Primary   Linux/PA-RISC boot   =20
>            =20
> >  63.97
> >     sdb2                    Primary   Linux swap           =20
>            =20
> > 128.98
> >     sdb3                    Primary   Linux                =20
>            =20
> > 127.93
> >     sdb5                    Logical   Linux                =20
>           =20
> > 1664.10
> >     sdb6                    Logical   Linux                =20
>            =20
> > 255.86
> >     sdb7                    Logical   Linux                =20
>            =20
> > 127.93
> >     sdb8                    Logical   Linux                =20
>            =20
> > 127.93
> >     sdb9                    Logical   Linux                =20
>           =20
> > 2047.87
> >     sdb10                   Logical   Linux                =20
>           =20
> > 2047.87
> >     sdb11                   Logical   Linux                =20
>           =20
> > 2047.87
> >                             Logical   Free Space           =20
>            =20
> > 459.28
> >=20
> > sdb3 being the /boot & sdb5 / fs.
> >=20
> > then I copy this structure with sfdisk -d /dev/sdb | sfdisk /dev/sda
> > (same size
> > but not the same supplier) and synchronize all mdi with=20
> respective disk
> > slice.
> >=20
> > All is ok. But still have to mirror manually quasi static=20
> slices: sdx1
> > (F0) and
> > sdx3 (/boot). So I umount /boot and made a dd from sdb3 to=20
> sda3 Ok and
> > sdb1 to
> > sda1 Ok.
> >=20
> > But when I try to boot from the mirror (ie sda) bootloader=20
> did not find
> > the ipl
> > eventhought the copy of the two F0 slices (I can still boot=20
> from sdb)?
> >=20
> > What do I wrong or better what should I have to resolve=20
> this problem?
> >=20
> > Thanks in advance for advice,
> >     Joel
> >=20
> >=20
> > -------------------------------------------------
> > This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >=20
>=20
>=20
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>=20


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Subject: Re: [parisc-linux] Problem building gcc-3.2 (cvs head) on hppa-linux
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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> /home/tausq/src/gcc-3.2/gcc/unwind-dw2.c: At top level:
> /home/tausq/src/gcc-3.2/gcc/unwind-dw2.c:56: error: size of array `reg' is too la
> rge
> /home/tausq/src/gcc-3.2/gcc/unwind-dw2.c:62: internal compiler error: internal er
> ror: Segmentation fault

something basic seems to be broken:
tausq@a500:~/build/gcc-3.2$ cat t.c
void *foo[2];

tausq@a500:~/build/gcc-3.2$ /home/tausq/build/gcc-3.2/gcc/xgcc -B/home/tausq/build/gcc-3.2/gcc/ -B/home/tausq/opt/gnu/hppa64-linux/bin/ -B/home/tausq/opt/gnu/hppa64-linux/lib/ -c t.c
t.c:1: error: size of array `foo' is too large
t.c:1: error: storage size of `foo' isn't known

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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-------------------------------------------------------------------
-->> FREE Perl CGI scripts add WEB ACCESS to your POP email accounts!
-->> Download today!! http://www.adjeweb.com
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I have 3 problems
1. when I run Xfree86 with KDE, my ps/2 keyboard won't work, I sait=20
to XFREE that I have us keyboard, pc104 and that is ps/2.
2. my LAN lasi 82596 says that I have timeout non stop with
connection
3. When I connect from Windows and Linux to my server, and when I run=20
command that display many rows, automatically linux closing my=20
connection and _|_. With SSH all is working. For example try to run=20
dmesg or ps axuw.


From - Thu Nov 08 21:23:34 2018
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Subject: [parisc-linux] Problem with XFREE 4.1.0 latest by apt-get:)
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My STI in console runs with resolution 1280x1024x8bit.
I have 819/K210
Can I change resolution to 800x600x16bit colour?
And my XFREE runs in 1028x1024x8bit colour, can I change to=20
1024x768x16bit ot 24bit?
dmesg displays that I have 16MB video framebuffer memory

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From - Thu Nov 08 21:23:34 2018
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well, after some advice from Dave about how to build gcc-3.2... i now
have a gcc-3.2 compiled kernel working as well:

tausq@a500:~$ uname -a
Linux version 2.4.18-pa54 (tausq@a500) (gcc version 3.2 20020711 (experimental)) #2 SMP Fri Jul 12 22:04:23 PDT 2002
tausq@a500:~$

I'm quite perplexed about why it doesn't seem to always work for
others... i didn't really have to do anything special with either gcc or
the kernel to get it to boot.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi Randolph,

Randolph Chung wrote:
> well, after some advice from Dave about how to build gcc-3.2... i now
> have a gcc-3.2 compiled kernel working as well:
> 

Great ;) I will try also

> tausq@a500:~$ uname -a
> Linux version 2.4.18-pa54 (tausq@a500) (gcc version 3.2 20020711 (experimental)) #2 SMP Fri Jul 12 22:04:23 PDT 2002
> tausq@a500:~$
> 
> I'm quite perplexed about why it doesn't seem to always work for
> others... i didn't really have to do anything special with either gcc or
> the kernel to get it to boot.

Well regarding release 3.2, I frequently encounter problems to compile 
gcc itself because of some broken part (it seems to me normal because it 
is the present development branch) for which I open PR which was solved 
in the mean time.
And when I reach to compile gcc and the kernel, this was a problem with 
network connection which make crash the system.
So now if I can obtain an working kernel (as you) I would be able to 
continu to test other interesting thing.

Thanks a lot for info,
     Joel



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Hi Stephan,

Can you give us more detail on release your are running for Xfree86, 
KDE, kernel (cvs date eventualy) or last tine you made an apt-get 
dist-upgrade?

Stephan Trajkoff wrote:
> -------------------------------------------------------------------
> -->> FREE Perl CGI scripts add WEB ACCESS to your POP email accounts!
> -->> Download today!! http://www.adjeweb.com
> -------------------------------------------------------------------
> 
> I have 3 problems
> 1. when I run Xfree86 with KDE, my ps/2 keyboard won't work, I sait 
> to XFREE that I have us keyboard, pc104 and that is ps/2.
> 2. my LAN lasi 82596 says that I have timeout non stop with
> connection
> 3. When I connect from Windows and Linux to my server, and when I run 
> command that display many rows, automatically linux closing my 
> connection and _|_.

It sounds like an old problem (telnetd on cd-0.9.3?) which could be 
solved (IIRC) with an apt-get dist-upgrade.

> With SSH all is working. For example try to run 
> dmesg or ps axuw.


Good luck,
	Joel




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From: Joel Soete <joel.soete@freebel.net>
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Subject: Re: [parisc-linux] Problem with XFREE 4.1.0 latest by apt-get:)
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More details (product number or dmesg) on graphical adaptor would be 
necessary. On workstation as 712, b180, b2000, ... there is generaly a 
builtin adaptor AFAIK not for K model.

Joel

Stephan Trajkoff wrote:
> My STI in console runs with resolution 1280x1024x8bit.
> I have 819/K210
> Can I change resolution to 800x600x16bit colour?
> And my XFREE runs in 1028x1024x8bit colour, can I change to 
> 1024x768x16bit ot 24bit?
> dmesg displays that I have 16MB video framebuffer memory
> 
> -------------------------------------------------------------------
> -->> Add WEB ACCESS to your POP email accounts with
> -->> FREE Perl CGI scripts! Download today! http://www.adjeweb.com
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From: Joel Soete <joel.soete@freebel.net>
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Subject: Re: [parisc-linux] MD problem
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Peter,

You have right, this is the same problem: /sbin/klogd is using /boot

Thanks a lot,
	Joel

Joel Soete wrote:
 > Hi Peter,
 >
 > hmm same problem on my i386...
 > and fuser -m
 > /boot 209
 >
 > which process 209 is /sbin/klogd ( a child process of init)
 > I will have look on my hppa.
 >
 > Thanks a lot for info,
 >     Joel
 >
 > Peter Mottram wrote:
 >
 >> fuser -m ?
 >>
 >> On Fri, 12 Jul 2002, joel.soete@freebel.net wrote:
 >>
 >>
 >>> and additional problem:
 >>> if I mount automaticaly /boot in /etc/fstab it is impossible to
 >>> dismount this fs:
 >>>
 >>> umount /boot
 >>> device busy
 >>>
 >>> fuser -u /boot
 >>> /boot
 >>> No process references; use -v for the complete list
 >>> fuser -v /boot:
 >>>
 >>>             USER       PID  ACCESS  COMMAND
 >>> /boot        root    kernel  mount   /boot
 >>>
 >>> Any idea? (if I mount it manualy after the reboot no problem?)
 >>>
 >>> Quoting joel.soete@freebel.net:
 >>>
 >>>
 >>>> Hi All,
 >>>>
 >>>> I build a raid-1 configuration starting from the internal disk sdb
 >>>> formated as
 >>>> follow:
 >>>>                                  cfdisk 2.11n
 >>>>
 >>>>                              Disk Drive: /dev/sdb
 >>>>                             Size: 9100044288 bytes
 >>>>              Heads: 64   Sectors per Track: 32   Cylinders: 8678
 >>>>
 >>>>    Name        Flags      Part Type  FS Type          [Label]
 >>>> Size (MB)
 >>>>
 >>>> 
------------------------------------------------------------------------------ 

 >>>>
 >>>>    sdb1                    Primary   Linux/PA-RISC boot
 >>>> 63.97
 >>>>    sdb2                    Primary   Linux swap
 >>>> 128.98
 >>>>    sdb3                    Primary   Linux
 >>>> 127.93
 >>>>    sdb5                    Logical   Linux
 >>>> 1664.10
 >>>>    sdb6                    Logical   Linux
 >>>> 255.86
 >>>>    sdb7                    Logical   Linux
 >>>> 127.93
 >>>>    sdb8                    Logical   Linux
 >>>> 127.93
 >>>>    sdb9                    Logical   Linux
 >>>> 2047.87
 >>>>    sdb10                   Logical   Linux
 >>>> 2047.87
 >>>>    sdb11                   Logical   Linux
 >>>> 2047.87
 >>>>                            Logical   Free Space
 >>>> 459.28
 >>>>
 >>>> sdb3 being the /boot & sdb5 / fs.
 >>>>
 >>>> then I copy this structure with sfdisk -d /dev/sdb | sfdisk /dev/sda
 >>>> (same size
 >>>> but not the same supplier) and synchronize all mdi with respective 
disk
 >>>> slice.
 >>>>
 >>>> All is ok. But still have to mirror manually quasi static slices: sdx1
 >>>> (F0) and
 >>>> sdx3 (/boot). So I umount /boot and made a dd from sdb3 to sda3 Ok and
 >>>> sdb1 to
 >>>> sda1 Ok.
 >>>>
 >>>> But when I try to boot from the mirror (ie sda) bootloader did not 
find
 >>>> the ipl
 >>>> eventhought the copy of the two F0 slices (I can still boot from sdb)?
 >>>>
 >>>> What do I wrong or better what should I have to resolve this problem?
 >>>>
 >>>> Thanks in advance for advice,
 >>>>    Joel
 >>>>
 >>>>
 >>>> -------------------------------------------------
 >>>> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
 >>>> _______________________________________________
 >>>> parisc-linux mailing list
 >>>> parisc-linux@lists.parisc-linux.org
 >>>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
 >>>>
 >>>
 >>>
 >>> -------------------------------------------------
 >>> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
 >>> _______________________________________________
 >>> parisc-linux mailing list
 >>> parisc-linux@lists.parisc-linux.org
 >>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
 >>>
 >>
 >>
 >>
 >
 >
 >





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From: Joel Soete <joel.soete@freebel.net>
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Subject: Re: [parisc-linux] MD problem
Date: Sat, 13 Jul 2002 16:32:57 +0000
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Cc: parisc-linux@parisc-linux.org
To: "Neulinger, Nathan" <nneul@umr.edu>
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Hello Nathan,


Neulinger, Nathan wrote:
> You got it in /etc/exports and running nfs?

No (but it should be a good idea)

Thanks,
	Joel

> 
> -- Nathan
> 
> ------------------------------------------------------------
> Nathan Neulinger                       EMail:  nneul@umr.edu
> University of Missouri - Rolla         Phone: (573) 341-4841
> Computing Services                       Fax: (573) 341-4216
> 
> 
> 
>>-----Original Message-----
>>From: joel.soete@freebel.net [mailto:joel.soete@freebel.net] 
>>Sent: Friday, July 12, 2002 1:05 PM
>>To: parisc-linux@parisc-linux.org
>>Subject: Re: [parisc-linux] MD problem
>>
>>
>>and additional problem:
>>if I mount automaticaly /boot in /etc/fstab it is impossible 
>>to dismount this fs:
>>
>>umount /boot
>>device busy
>>
>>fuser -u /boot
>>/boot
>>No process references; use -v for the complete list
>>fuser -v /boot:
>>
>>             USER       PID  ACCESS  COMMAND
>>/boot        root    kernel  mount   /boot
>>
>>Any idea? (if I mount it manualy after the reboot no problem?)
>>
>>Quoting joel.soete@freebel.net:
>>
>>
>>>Hi All,
>>>
>>>I build a raid-1 configuration starting from the internal disk sdb
>>>formated as
>>>follow:
>>>                                  cfdisk 2.11n
>>>
>>>                              Disk Drive: /dev/sdb
>>>                             Size: 9100044288 bytes
>>>              Heads: 64   Sectors per Track: 32   Cylinders: 8678
>>>
>>>    Name        Flags      Part Type  FS Type          
>>
>>[Label]       
>>
>>>Size (MB)
>>>
>>>
>>
>>--------------------------------------------------------------
>>----------------
>>
>>>    sdb1                    Primary   Linux/PA-RISC boot    
>>
>>            
>>
>>> 63.97
>>>    sdb2                    Primary   Linux swap            
>>
>>            
>>
>>>128.98
>>>    sdb3                    Primary   Linux                 
>>
>>            
>>
>>>127.93
>>>    sdb5                    Logical   Linux                 
>>
>>           
>>
>>>1664.10
>>>    sdb6                    Logical   Linux                 
>>
>>            
>>
>>>255.86
>>>    sdb7                    Logical   Linux                 
>>
>>            
>>
>>>127.93
>>>    sdb8                    Logical   Linux                 
>>
>>            
>>
>>>127.93
>>>    sdb9                    Logical   Linux                 
>>
>>           
>>
>>>2047.87
>>>    sdb10                   Logical   Linux                 
>>
>>           
>>
>>>2047.87
>>>    sdb11                   Logical   Linux                 
>>
>>           
>>
>>>2047.87
>>>                            Logical   Free Space            
>>
>>            
>>
>>>459.28
>>>
>>>sdb3 being the /boot & sdb5 / fs.
>>>
>>>then I copy this structure with sfdisk -d /dev/sdb | sfdisk /dev/sda
>>>(same size
>>>but not the same supplier) and synchronize all mdi with 
>>
>>respective disk
>>
>>>slice.
>>>
>>>All is ok. But still have to mirror manually quasi static 
>>
>>slices: sdx1
>>
>>>(F0) and
>>>sdx3 (/boot). So I umount /boot and made a dd from sdb3 to 
>>
>>sda3 Ok and
>>
>>>sdb1 to
>>>sda1 Ok.
>>>
>>>But when I try to boot from the mirror (ie sda) bootloader 
>>
>>did not find
>>
>>>the ipl
>>>eventhought the copy of the two F0 slices (I can still boot 
>>
>>from sdb)?
>>
>>>What do I wrong or better what should I have to resolve 
>>
>>this problem?
>>
>>>Thanks in advance for advice,
>>>    Joel
>>>
>>>
>>>-------------------------------------------------
>>>This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
>>>_______________________________________________
>>>parisc-linux mailing list
>>>parisc-linux@lists.parisc-linux.org
>>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>>
>>
>>
>>-------------------------------------------------
>>This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
> 





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From: Joel Soete <joel.soete@freebel.net>
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Subject: Re: [parisc-linux] compiling kernels with gcc-3.1
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To: Randolph Chung <randolph@tausq.org>
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This is a multi-part message in MIME format.
--------------060405050208000907040807
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Hi Randolph,

Well I reach to compile gcc-3.1.1 without error (xc toolchain hppa -> 
hppa as gcc bootstrap).

Now I compile kernel 2.4.18-pa54 (last cvs I got Friday morning) for 
32-bits config first (not 64-bits yet) and may be that is why I do not 
met the problem mentioned below

> Well, maybe they've changed things upstream, but I just tried with
> gcc-3.1.1 (3.1.1 20020708 snapshot) and it seems to work well, at least
> with my limited testing... this is with the debian default 64-bit smp
> .config.
> 
> I did have to hack up a bunch of code... it seems like gcc-3.1.1 doesn't
> like this construct:
> 
> typedef struct {
>         volatile unsigned int __attribute__((aligned(16))) lock;
> } spinlock_t;
> 
> typedef struct {
>         spinlock_t lock;
>         volatile unsigned int count;
> } rwlock_t;
> 
> rwlock_t foo = (rwlock_t) { (spinlock_t) { 1 }, 0 };
> 
> it complains that the initializer is not constant in this case. 
> removing the (rwlock_t) cast fixed that....
> 
> also it doesn't like it when you have a variable and you initialize it
> after declaration with the { (spinlock_t) { 1 }, 0 } stuff...
> 
> (e.g. 
> rwlock_t foo;
> 
> foo = { (spinlock_t) { 1 }, 0 };
> 
> gives a "parse error at {" message)
> 
> after working through these problems i got a working kernel...
> 

OTC I met a strange problem with modules:

find kernel -path '*/pcmcia/*' -name '*.o' | xargs -i -r ln -sf ../{} pcmcia
if [ -r System.map ]; then /sbin/depmod -ae -F System.map  2.4.18-pa54; fi
depmod: *** Unresolved symbols in 
/lib/modules/2.4.18-pa54/kernel/drivers/input/input.o
depmod:         mod_timer_R1f13d309
depmod:         unregister_chrdev_Rc192d491
depmod:         printk_Rdd132261
depmod:         jiffies_R0da02d67
depmod:         del_timer_Rfc62f16d
depmod:         register_chrdev_Rddc3984b
depmod:         sprintf_R1d26aa98
depmod:         try_inc_mod_count_R133c9d8f
depmod: *** Unresolved symbols in 
/lib/modules/2.4.18-pa54/kernel/drivers/input/keybdev.o
depmod:         kmalloc_R93d4cfe6
...

Any idea?

Thanks again for help and advises,
	Joel

PS: I join my compile log just in case you notice other details

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g+gICNj1yqJu/tfkR8hxO5l98/8HnnXik92oCwA=
--------------060405050208000907040807--




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> 
> tausq@a500:~$ uname -a
> Linux version 2.4.18-pa54 (tausq@a500) (gcc version 3.2 20020711 (experimental)) #2 SMP Fri Jul 12 22:04:23 PDT 2002
> tausq@a500:~$
> 
> I'm quite perplexed about why it doesn't seem to always work for
> others... i didn't really have to do anything special with either gcc or
> the kernel to get it to boot.
> 
> randolph

I think the issue is one of quality assurance. We don't have a strict
set of criteria for testing/validating/certifying that a given snapshot
of a given toolchain, in a given configuration, will work.

I'm trying to address some of these things by building a cross-check
test-suite to test the toolchain weekly or nightly. This all came out
of a talk I had with Matt Taggart :) who is another toolchain-junkie.

When I get more work done I'll post.

c.


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Subject: [parisc-linux] locales held back
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hi,

For the last two days I've been told by apt-get upgrade that the locales
package has been held back. Today I decided to try apt-get install
locales with this result:

puccini:~# apt-get install locales
Reading Package Lists... Done
Building Dependency Tree... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.

Since you only requested a single operation it is extremely likely that
the package is simply not installable and a bug report against
that package should be filed.
The following information may help to resolve the situation:

Sorry, but the following packages have unmet dependencies:
  locales: Depends: glibc-2.2.5-8 but it is not installable
E: Sorry, broken packages

Any, idea how I can resolve the problem, or must I just be patient until
the broken glibc-2.2.5-8 is fixed?

Take care,
frank



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Frank Alden Smith wrote:
> hi,
> 
> For the last two days I've been told by apt-get upgrade that the locales
> package has been held back. Today I decided to try apt-get install
> locales with this result:
> 
> puccini:~# apt-get install locales
> Reading Package Lists... Done
> Building Dependency Tree... Done
> Some packages could not be installed. This may mean that you have
> requested an impossible situation or if you are using the unstable
> distribution that some required packages have not yet been created
> or been moved out of Incoming.
> 
> Since you only requested a single operation it is extremely likely that
> the package is simply not installable and a bug report against
> that package should be filed.
> The following information may help to resolve the situation:
> 
> Sorry, but the following packages have unmet dependencies:
>   locales: Depends: glibc-2.2.5-8 but it is not installable
> E: Sorry, broken packages
> 
> Any, idea how I can resolve the problem, or must I just be patient until
> the broken glibc-2.2.5-8 is fixed?
> 
> Take care,
> frank


That's a pretty common situation in Debian Sid (unstable), especially 
between locales and glibc. I've seen it happen qui a lot of times, but 
it's just harmless.

This situation will end in a few days, just let time to package 
maintainers to do their job and release correcly compiled and packaged 
software.

/Dantes



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"Stephan Trajkoff" wrote:
> Hello man,
> I want to make mirror of parisc-linux.org
> my HP working stable and I want to make this main server in the=20
> institute where I am working
> www.bio21.bas.bg
> I think to change AIX PowerPC with this HP 819/K210
> What to make to do mirror of parisc-linux.org?


(I typed the following in from memory; it's the same steps as
accessing kernel source in the "linux" repository).

cvs -d :pserver:anonymous@cvs.parisc-linux.org:/var/cvs login
cvs -d :pserver:anonymous@cvs.parisc-linux.org:/var/cvs co web
cd web
make ssi	(or make static)

See the web/Makefile for which ENV variables you can set to redirect
where the stuff gets installed. Thibaut (ESIEE) can help you
with this part.

> I have BIND9
> I want to have web address www.bg.parisc-linux.org.

I hope someone on the list can help you with this.
I don't maintain parisc-linux.org domain.

> After 2-3 weeks I want to make mirror of your FTP

ok.
Can someone tell me if rsync is enabled for ftp.parisc-linux.org:~ftp ?
I thought rsync of cvs.p-l.o was disabled for a while.

> I have 2mbit DSL modem with 256kpbs garanteed speed to world with=20
> burst 2mbit night and weekends

Cool!

grant


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On Tue, 9 Jul 2002, Grant Grundler wrote:

> The -pa52 kernel built 100+ kernels/modules successively until
> I stopped it on the a500-44. The same kernel on a500-6X (PA8700)
> crashes after 12 or so hours of building gcc bits. 

I tested -pa53 on smp on J5k building kernels (make -j4), built 115,
here's a sample start/stop time. 
Start: Sat Jul 13 19:23:25 PDT 2002 
End: Sat Jul 13 19:26:56 PDT 2002

It is just apt-get update and samba (so far) that kill it.  Just did a cvs
update, worked fine.  I wonder what it is about apt-get that kills it.  
Can someone else with a J5k test this?  Running a current 2.4.18 smp
kernel and running apt-get update.  

-- 
Why am I so soft in the middle when the rest of my life is so hard?
		-- Paul Simon



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STI GSC/PCI graphics driver version 0.9
STI word mode ROM at f0060000, hpa at f4000000
STI id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1280
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 2b4ded6d, mmio:=20
0xf4100000
I have this shit, can anyone help me to run XFREE in 15,16,24 or 32=20
bit color?
my HP is 819/K210
Another problem how I can run PINE?
I have downloaded with apt-get pine 4.44
./build lnx and ./build slx don't work
there is an error in PINE
before compiling pine, I did apt-get dist-upgrade

-->> FREE Perl CGI scripts add WEB ACCESS to your
-->> POP E-Mail accounts! Download today!! http://www.adjeweb.com



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Subject: [parisc-linux] mirror of parisc-linux
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Hello,
tibaut help me with mirroring of this site parisc-linux.org
what I need to do?

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From - Thu Nov 08 21:23:36 2018
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Subject: Re: [parisc-linux] STI framebuffer and PINE
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On Sun, Jul 14, 2002 at 09:52:30AM +0300, Stephan Trajkoff wrote:

> STI GSC/PCI graphics driver version 0.9
> STI word mode ROM at f0060000, hpa at f4000000
> STI id 2b4ded6d-40a00499, conforms to spec rev. 8.04
> STI device: HPA208LC1280
> Console: switching to colour frame buffer device 160x64
> fb0: stifb 1280x1024-8 frame buffer device, id: 2b4ded6d, mmio: 
> 0xf4100000
> I have this shit, can anyone help me to run XFREE in 15,16,24 or 32 
> bit color?
> my HP is 819/K210

Are you sure the framebuffer can run at more colors?
I don't find this on http://docs.hp.com/hpux/hw/ !

> Another problem how I can run PINE?
> I have downloaded with apt-get pine 4.44

apt-get install pine

but pine is junk anyway. Try mutt.

> ./build lnx and ./build slx don't work

What is this?

> there is an error in PINE

Then report it using

reportbug pine

> before compiling pine, I did apt-get dist-upgrade

You compiled pine? I though you used apt-get?!

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
If JavaScript is walking alone late at night through a bad part of
town with a pocket full of $20 bills, ActiveX is dropping your
trousers in the middle of the yard of a maximum-security prison,
bending over, and yelling 'Come and get it, boys!' 



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I don't know if my STI can run more colours. I have no documentation=20
for my server
./build slx and ./build lnx is commands for compiling pine
before compiling PINE i did apt-get dist-upgrade
but again PINE package can't compile, only pico and pilot works, not=20
pine=20
PINE in hppa dist is only avalailable as source, not binary
my clients want pine, not mutt



-------- Original Message --------

=3D=3D> From: Ralf Hildebrandt <Ralf.Hildebrandt@charite.de>
=3D=3D> Date: Sun, 14 Jul 2002 10:12:41  0200

On Sun, Jul 14, 2002 at 09:52:30AM  0300, Stephan Trajkoff wrote:

> STI GSC/PCI graphics driver version 0.9 > STI word mode ROM at=20
f0060000, hpa at f4000000 > STI id 2b4ded6d-40a00499, conforms to
spec=20
rev. 8.04 > STI device: HPA208LC1280 > Console: switching to colour=20
frame buffer device 160x64 > fb0: stifb 1280x1024-8 frame buffer=20
device, id: 2b4ded6d, mmio: > 0xf4100000 > I have this shit, can=20
anyone help me to run XFREE in 15,16,24 or 32 > bit color? > my HP is=20
819/K210

Are you sure the framebuffer can run at more colors? I don't find
this=20
on http://docs.hp.com/hpux/hw/ !

> Another problem how I can run PINE? > I have downloaded with apt-get=20
pine 4.44

apt-get install pine

but pine is junk anyway. Try mutt.

> ./build lnx and ./build slx don't work

What is this?

> there is an error in PINE

Then report it using

reportbug pine

> before compiling pine, I did apt-get dist-upgrade

You compiled pine? I though you used apt-get?!

-- Ralf Hildebrandt (Im Auftrag des Referat V A)=20=20=20
Ralf.Hildebrandt@charite.de Charite Campus Virchow-Klinikum=20=20=20=20=20=
=20=20=20=20=20=20
      Tel.   49 (0)30-450 570-155 Referat V A - Kommunikationsnetze -=20
            Fax.   49 (0)30-450 570-916 If JavaScript is walking
alone=20
late at night through a bad part of town with a pocket full of $20=20
bills, ActiveX is dropping your trousers in the middle of the yard of=20
a maximum-security prison, bending over, and yelling 'Come and get
it,=20
boys!'=20

_______________________________________________ parisc-linux mailing=20
list parisc-linux@lists.parisc-linux.org=20
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux=20

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Subject: [parisc-linux] Re: Re: STI framebuffer and PINE
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Stephan Trajkoff wrote:
> PINE in hppa dist is only avalailable as source, not binary

This is due to the license of PINE.  It cannot be distributed as
binary or binary built from modified source.  Hence, only the
plain source can be distributed.

> my clients want pine, not mutt

Even though it doesn't help you in the first place, but since
Mutt comes with a Pine.rc in the examples directory, you may
be able to educate one client or another to use the free Mutt
with these settings.  It may reduce the pressure on you a little
bit.

Regards,

	Joey

-- 
If you come from outside of Finland, you live in wrong country.
	-- motd of irc.funet.fi


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Am 14.07.2002 um 12:17:46 +0300 schrieb Stephan Trajkoff folgendes:
> I don't know if my STI can run more colours. I have no documentation 
> for my server

Well, check the pages I mentioned.

> ./build slx and ./build lnx is commands for compiling pine


> before compiling PINE i did apt-get dist-upgrade

Fine. Don't forget to
apt-get update
first

> but again PINE package can't compile, only pico and pilot works, not 
> pine 

Did you get a PINE source package (is there one?) or the original source?

> my clients want pine, not mutt

Their fault.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
A complex system that works is invariably found to have evolved from a
simple system that worked.                                -- John Gall 



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Hi Stephan,

On Sunday 14 July 2002 08:52, Stephan Trajkoff wrote:
> STI GSC/PCI graphics driver version 0.9
> STI word mode ROM at f0060000, hpa at f4000000
> STI id 2b4ded6d-40a00499, conforms to spec rev. 8.04

#define S9000_ID_ARTIST         0x2B4DED6D      /* Artist (Gecko/712 & 715) onboard Graphics */

> STI device: HPA208LC1280
> Console: switching to colour frame buffer device 160x64
> fb0: stifb 1280x1024-8 frame buffer device, id: 2b4ded6d, mmio:
> 0xf4100000
> I have this shit, can anyone help me to run XFREE in 15,16,24 or 32
> bit color?

The Artist card is limited by hardware to 8bpp only. Sorry.

> my HP is 819/K210
> Another problem how I can run PINE?
> I have downloaded with apt-get pine 4.44
> ./build lnx and ./build slx don't work
> there is an error in PINE
> before compiling pine, I did apt-get dist-upgrade

No idea.

Greetings,
Helge




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Am 14.07.2002 um 11:50:17 +0200 schrieb Ralf Hildebrandt folgendes:

> > ./build slx and ./build lnx is commands for compiling pine

WHat is the error you're getting?
 
> > but again PINE package can't compile, only pico and pilot works, not 
> > pine 

What happens?

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Your file was so big.
It might be very useful.
But now it is gone.



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Hi,

I have a HP 712/80 workstation with PARISC-Linux and it works flawlessly
(2.4.18) - good job.
I would like to use it as a router/fw, ergo I need to plugin another
network card. Could you, please, tell me what network cards for the
extension slot are supported by the PARISC-Linux and maybe where I can
get one? I know, it's all a bit old stuff ;) so it's not easy to get I
suppose..

Thanks for any help,
Simon

PS: Please CC any response to my e-mail since I'm not on the list.

--
Simon Urbanek

---------------------------------------------------------
 e-mail  : SU@b-q-c.com
 ICQ     : 41784514
 Homepage: http://simon.urbanek.info/

   Air conditioned environment, do not open Windows !
                    ... use Linux !
---------------------------------------------------------



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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
Hi,
<p>I have a HP 712/80 workstation with PARISC-Linux and it works flawlessly
(2.4.18) - good job.
<br>I would like to use it as a router/fw, ergo I need to plugin another
network card. Could you, please, tell me what network cards for the extension
slot are supported by the PARISC-Linux and maybe where I can get one? I
know, it's all a bit old stuff ;) so it's not easy to get I suppose..
<p>Thanks for any help,
<br>Simon
<p>PS: Please CC any response to my e-mail since I'm not on the list.
<pre>--&nbsp;
Simon Urbanek

---------------------------------------------------------
&nbsp;e-mail&nbsp; : SU@b-q-c.com
&nbsp;ICQ&nbsp;&nbsp;&nbsp;&nbsp; : 41784514
&nbsp;Homepage: <A HREF="http://simon.urbanek.info/">http://simon.urbanek.info/</A>

&nbsp;&nbsp; Air conditioned environment, do not open Windows !
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ... use Linux !
---------------------------------------------------------</pre>
&nbsp;</html>

--------------6BB00E794D838C144DD59A98--



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Hi Simon,

last time I tested a normal PC network card (ISA NE2000 clone) worked.

Greetings,
Helge

On Sunday 14 July 2002 14:52, Simon Urbanek wrote:
> Hi,
>
> I have a HP 712/80 workstation with PARISC-Linux and it works flawlessly
> (2.4.18) - good job.
> I would like to use it as a router/fw, ergo I need to plugin another
> network card. Could you, please, tell me what network cards for the
> extension slot are supported by the PARISC-Linux and maybe where I can
> get one? I know, it's all a bit old stuff ;) so it's not easy to get I
> suppose..
>
> Thanks for any help,
> Simon
>
> PS: Please CC any response to my e-mail since I'm not on the list.
>
> --
> Simon Urbanek



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Subject: [parisc-linux] compiling PINE under PARISC
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cc    -g -DDEBUG   -DLNX -DSYSTYPE=3D\"LNX\" -DMOUSE -o pine addrbook.o=20
adrbkcmd.o adrbklib.o args.o bldaddr.o context.o filter.o folder.o=20
help.o helptext.o imap.o init.o mailcap.o mailcmd.o mailindx.o=20
mailpart.o mailview.o newmail.o other.o pine.o reply.o screen.o=20
send.o signals.o status.o strings.o takeaddr.o os.o=20
date.c ../pico/libpico.a ../c-client/c-client.a  -lncurses `cat ../c-
client/LDFLAGS`
/usr/bin/ld: other.o(.text 0x3f730): cannot reach=20
000000d6_ClearScreen 0, recompile with -ffunction-sections
/usr/bin/ld: other.o(.text 0x3f730): cannot handle R_PARISC_PCREL17F=20
for ClearScreen
/usr/bin/ld: final link failed: Bad value
collect2: ld returned 1 exit status
make: *** [pine] Error 1

It is a error with ./build sl5 and slx
same errors:(((
can anyone help?

-->> FREE Perl CGI scripts add WEB ACCESS to your
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Are you trying to build pine from sources you have downloaded manually?

I have no problems building v4.44 using apt.....

just make sure you have some source lines in /etc/apt/sources.list - here
is my config for use here in NL (line-wrapped a little):

deb http://ftp.nl.debian.org/debian/ woody main non-free contrib
deb http://ftp.nl.debian.org/debian-non-US woody/non-US main non-free
contrib
deb-src http://ftp.nl.debian.org/debian/ woody main non-free contrib
deb-src http://ftp.nl.debian.org/debian-non-US woody/non-US main non-free
contrib
deb http://security.debian.org/ woody/updates main contrib non-free
deb-src http://security.debian.org/ woody/updates main contrib non-free

Then you can download and build pine perfectly using:

apt-get source pine --build

R.
PeteM

On Sun, 14 Jul 2002, Stephan Trajkoff wrote:

> cc    -g -DDEBUG   -DLNX -DSYSTYPE=\"LNX\" -DMOUSE -o pine addrbook.o
> adrbkcmd.o adrbklib.o args.o bldaddr.o context.o filter.o folder.o
> help.o helptext.o imap.o init.o mailcap.o mailcmd.o mailindx.o
> mailpart.o mailview.o newmail.o other.o pine.o reply.o screen.o
> send.o signals.o status.o strings.o takeaddr.o os.o
> date.c ../pico/libpico.a ../c-client/c-client.a  -lncurses `cat ../c-
> client/LDFLAGS`
> /usr/bin/ld: other.o(.text 0x3f730): cannot reach
> 000000d6_ClearScreen 0, recompile with -ffunction-sections
> /usr/bin/ld: other.o(.text 0x3f730): cannot handle R_PARISC_PCREL17F
> for ClearScreen
> /usr/bin/ld: final link failed: Bad value
> collect2: ld returned 1 exit status
> make: *** [pine] Error 1
>
> It is a error with ./build sl5 and slx
> same errors:(((
> can anyone help?
>
> -->> FREE Perl CGI scripts add WEB ACCESS to your
> -->> POP E-Mail accounts! Download today!! http://www.adjeweb.com
>
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Subject: Re: [parisc-linux] 712/80 ext. network card
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There's no ISA slot in the 712. There was a special interface card 
(A4014A) that added a second network port and a second serial port. It 
is documented in this manual:

   http://www.hp.com/workstations/support/archive/manuals/A2615-90602.pdf

Good luck trying to find one. The only time I saw these adapters was 
when the 712 was used as the console to V-class servers. The B-class 
(with PCI & GSC slots) soon replaced the 712 for this solution.

I wanted to do the same with one of my 712's, but have not been able to 
find one of these adapters. :-(

On Sunday, July 14, 2002, at 09:12 , Helge Deller wrote:

> Hi Simon,
>
> last time I tested a normal PC network card (ISA NE2000 clone) worked.
>
> Greetings,
> Helge
>
> On Sunday 14 July 2002 14:52, Simon Urbanek wrote:
>> Hi,
>>
>> I have a HP 712/80 workstation with PARISC-Linux and it works 
>> flawlessly
>> (2.4.18) - good job.
>> I would like to use it as a router/fw, ergo I need to plugin another
>> network card. Could you, please, tell me what network cards for the
>> extension slot are supported by the PARISC-Linux and maybe where I can
>> get one? I know, it's all a bit old stuff ;) so it's not easy to get I
>> suppose..
>>
>> Thanks for any help,
>> Simon
>>
>> PS: Please CC any response to my e-mail since I'm not on the list.
>>
>> --
>> Simon Urbanek
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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On Sunday 14 July 2002 19:39, Chuck Slivkoff wrote:
> There's no ISA slot in the 712. 

Isn't there an EISA slot ?
At least in my 715 there is one and there I tested the ISA card...

Greetings,
Helge


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> cc    -g -DDEBUG   -DLNX -DSYSTYPE=\"LNX\" -DMOUSE -o pine addrbook.o 
> adrbkcmd.o adrbklib.o args.o bldaddr.o context.o filter.o folder.o 
> help.o helptext.o imap.o init.o mailcap.o mailcmd.o mailindx.o 
> mailpart.o mailview.o newmail.o other.o pine.o reply.o screen.o 
> send.o signals.o status.o strings.o takeaddr.o os.o 
> date.c ../pico/libpico.a ../c-client/c-client.a  -lncurses `cat ../c-
> client/LDFLAGS`
> /usr/bin/ld: other.o(.text 0x3f730): cannot reach 
> 000000d6_ClearScreen 0, recompile with -ffunction-sections

There are various ways to work around this problem.  You could
try

export CC="gcc -ffunction-sections"

If that doesn't work, you will have to edit BASECFLAGS for the
configuration that is being built in various Makefile's, adding
-ffunction-sections.  You can find the Makefile's with

find . -type f -print|xargs grep BASECFLAGS

Finally, you could use gcc 3.2 for the build.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Jean-Yves GUILLEVIC writes:
> Hello All
> 
> does someone knows about libffi2 on Debian HPPA Linux ?
> to get a gcj on this port ...

AFAIK nobody has started a port yet.


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HEllo everyone,

does anybody on that list have an old Firmware patch for 715/33?
1.6 doesn't seem to support 715/33 so I think 1.4 is what I need.
HP calles it PF_C7X50014, but I can't download it from their website, b/c it
was substituted by 1.6(which doesn't support 33)

any replies appreciated, please CC me in reply, I'm not subscribed to that
list.

Igor


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> Jean-Yves GUILLEVIC writes:
> > Hello All
> > 
> > does someone knows about libffi2 on Debian HPPA Linux ?
> > to get a gcj on this port ...
> 
> AFAIK nobody has started a port yet.

James Mc Parlane may be working on this.  There was a question re calling
conventions back on May 17.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Chuck Slivkoff <caslivkoff@telocity.com>
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Subject: Re: [parisc-linux] 712/80 ext. network card
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To: Helge Deller <deller@gmx.de>
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Nope.

On Sunday, July 14, 2002, at 02:02 , Helge Deller wrote:

> On Sunday 14 July 2002 19:39, Chuck Slivkoff wrote:
>> There's no ISA slot in the 712.
>
> Isn't there an EISA slot ?
> At least in my 715 there is one and there I tested the ISA card...



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From: "Volitive ." <volitive@hotmail.com>
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Subject: [parisc-linux] [Unrelated Advertisement] J5000 for sale on E-Bay!
Date: Sun, 14 Jul 2002 16:41:45 -0600
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Sorry for the spam, but I wanted to include people on this list, since you 
may be the most interested.

I'm selling my old development machine, a J5000, as it came configured.

It's up on e-bay right now, at
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2038735534

Currently at $1250, but it's been appraised at $4200.

It will include 512MB of RAM, 9.1gb SCSI, FX2 Graphics, CD-ROM and Floppy.

Thanks!



_________________________________________________________________
MSN Photos is the easiest way to share and print your photos: 
http://photos.msn.com/support/worldwide.aspx



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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] locales held back
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eddantes@wanadoo.fr writes...

> Frank Alden Smith wrote:

> > Sorry, but the following packages have unmet dependencies:
> >   locales: Depends: glibc-2.2.5-8 but it is not installable
> > E: Sorry, broken packages
> > 
> > Any, idea how I can resolve the problem, or must I just be patient until
> > the broken glibc-2.2.5-8 is fixed?
> > 
> > Take care,
> > frank
> 
> 
> That's a pretty common situation in Debian Sid (unstable), especially 
> between locales and glibc. I've seen it happen qui a lot of times, but 
> it's just harmless.

BTW- IIRC this is due the the fact that libc6 and locales have lock-step
dependencies. So when a new glibc package comes out the binary-all
locales package is immediatatly available for all architectures but the
arch-specific packages like libc aren't until they've been built for
each architecture. So as eddantes pointed out, just wait a few days and
they'll be sync'd back up.

Or you could run testing which doesn't have this problem(by definition).

-- 
Matt Taggart
taggart@fc.hp.com


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] 715/33 PDC v1.4 firmware
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Igor Grinchenko writes...

> HEllo everyone,
> 
> does anybody on that list have an old Firmware patch for 715/33?
> 1.6 doesn't seem to support 715/33 so I think 1.4 is what I need.
> HP calles it PF_C7X50014, but I can't download it from their website, b/c
> it was substituted by 1.6(which doesn't support 33)

The 715/old (aka 33,50,75) are not user upgradable, you'd have to swap
the firmware chip. The version you're talking about above(1.6, 1.4) are
for the 715/new (aka 64,80,100). And as someone(ggg?) recently pointed
out these don't work for the 715/100XC either.

Since your system isn't user upgradable, you have the same firmware as
everyone else. So you can bet any generic problem encountered will either
be worked around in software or broken for everyone :)

-- 
Matt Taggart
taggart@fc.hp.com


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On Thu, Jul 11, 2002 at 09:22:59AM +0100, Patrick Caulfield wrote:
> This works fine on Alpha & Intel but seems very unreliable on parisc for some
> reason. Sometimes it works, sometimes it oopses "do_page_fault() pid=2120
> command='lvm' type=15 address=0x00000001" and sometimes I just get back the
> wrong information (at least LVM thinks its wrong I haven't check in detail just
> what is up with it).

pid 2120 did a NULL pointer dereference ... you should be able to trace
it with the IAOQ, perhaps.  I'm not sure whether anyone's really played
with the O_DIRECT code yet, it could well be buggy on PA.  What you're
seeing sounds like bogus cache behaviour.

-- 
Revolutions do not require corporate support.


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Hi Randolph,

I am not so luky as you are:
The kernel compiles well and also boot well but always the same problem (in
addition to modules problems) as soon as I do an network connection with ssh the
system crash:
(I just note on the sti console)
sshd (pid 322): illegal instruction (code 8)
...
kernel panic...

Humm I try to boot from serial consol but there the behaviour is not quiet the same:
the system always panic but this time only a long list of:
Warning! stack pointer and cr30 do not correspond!
Dumping virtual address stack instead
Dumping satck from ... to ...:
....
(no stop or very very long?)

Well a last test (after I have to unplug replug power cable) at the serial
console : 
jso@palinux:~$ ssh localhost
The authenticity of host 'localhost (127.0.0.1)' can't be established.
RSA key fingerprint is ..:..:..:..:..:..:..:..:..:..:..:..:..:..:..:...
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'localhost' (RSA) to the list of known hosts.
jso@localhost's password: 

and the system also crashes (whithout any messages?).

So may I believe that the problems come first from ip stack itself and not from
ethernet driver?

Hmm I am also curious to test your .config file?

Joel

Quoting joel.soete@freebel.net:

> Quoting Randolph Chung <randolph@tausq.org>:
> 
> > > PS: Can you do a telnet or an ssh connection when this kernel is
> > running? IIRC
> > > as well as gcc-3.1 as gcc-3.2, I always reach well to build and
> boot
> > kernels
> > > (without kdb) but the system crashes as soon as you try to connect
> it
> > via the
> > > network.
> > 
> > yes, i can ssh into the box.
> > 
> Great news, I am impatient to also test it :)
> 
> Thanks a lot,
>     Joel
> 
> 
> 
> -------------------------------------------------
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Quoting joel.soete@freebel.net:

> Hi Randolph,
> 
> I am not so luky as you are:
> The kernel compiles well and also boot well but always the same problem
> (in
> addition to modules problems) as soon as I do an network connection with
> ssh the
> system crash:
> (I just note on the sti console)
> sshd (pid 322): illegal instruction (code 8)
> ...
> kernel panic...
> 
> Humm I try to boot from serial consol but there the behaviour is not
> quiet the same:
> the system always panic but this time only a long list of:
> Warning! stack pointer and cr30 do not correspond!
> Dumping virtual address stack instead
> Dumping satck from ... to ...:
> ....
> (no stop or very very long?)
> 
> Well a last test (after I have to unplug replug power cable) at the
> serial
> console : 
> jso@palinux:~$ ssh localhost
> The authenticity of host 'localhost (127.0.0.1)' can't be established.
> RSA key fingerprint is ..:..:..:..:..:..:..:..:..:..:..:..:..:..:..:...
> Are you sure you want to continue connecting (yes/no)? yes
> Warning: Permanently added 'localhost' (RSA) to the list of known
> hosts.
> jso@localhost's password: 
> 
> and the system also crashes (whithout any messages?).
> 
> So may I believe that the problems come first from ip stack itself and
> not from
> ethernet driver?
> 
> Hmm I am also curious to test your .config file?
> 

How do you build gcc (3.1.1) natively or as crosscompiler (I do the last may be
it is the problem?)?

Joel


> 
> Quoting joel.soete@freebel.net:
> 
> > Quoting Randolph Chung <randolph@tausq.org>:
> > 
> > > > PS: Can you do a telnet or an ssh connection when this kernel is
> > > running? IIRC
> > > > as well as gcc-3.1 as gcc-3.2, I always reach well to build and
> > boot
> > > kernels
> > > > (without kdb) but the system crashes as soon as you try to
> connect
> > it
> > > via the
> > > > network.
> > > 
> > > yes, i can ssh into the box.
> > > 
> > Great news, I am impatient to also test it :)
> > 
> > Thanks a lot,
> >     Joel


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Matthew Wilcox wrote:
> What you're seeing sounds like bogus cache behaviour.

Randolph and I think most SMP bugs reported (and we seen ourselves)
suggest a D-cache problem.

My theory is virtual addresses are flushed on one CPU but any data 
accessed through an aliases on another CPU are not flushed. And then
we end up with an inconsistency.

We've been reading Documentation/cachetlb.txt and trying
to understand what it says about virtually indexed caches.

The other thing is we don't hit the problems with PA8500 - only PA8700.
I'm guessing the aliasing or timing is quite different betweem the two.
Maybe someone else knows more?

grant


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On Mon, Jul 15, 2002 at 01:42:19AM -0600, Grant Grundler wrote:
> Randolph and I think most SMP bugs reported (and we seen ourselves)
> suggest a D-cache problem.

Entirely plausible.  PA has bigger virtually indexed caches than anyone
else, so we're more susceptible to cache aliasing bugs than anyone else.
It could be a missing flush somewhere in the arch-independent code.

> My theory is virtual addresses are flushed on one CPU but any data 
> accessed through an aliases on another CPU are not flushed. And then
> we end up with an inconsistency.

it's certainly possible... i don't claim to understand exactly how this
works, but my recollection is that some of the flush instructions are
cpu-local whereas others are global to the system.  you'd have to ask
jsm about it, really.

> We've been reading Documentation/cachetlb.txt and trying
> to understand what it says about virtually indexed caches.

It seems pretty straightforward to me... am I missing something?

> The other thing is we don't hit the problems with PA8500 - only PA8700.
> I'm guessing the aliasing or timing is quite different betweem the two.
> Maybe someone else knows more?

8700 has bigger caches than 8500 and more TLB entries, so it may be
easier to hit problems.

-- 
Revolutions do not require corporate support.


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On Sun, Jul 14, 2002 at 10:12:41AM +0200, Ralf Hildebrandt wrote:
> > ./build lnx and ./build slx don't work
> 
> What is this?
> 
> > there is an error in PINE
> 
> Then report it using
> 
> reportbug pine
> 
> > before compiling pine, I did apt-get dist-upgrade
> 
> You compiled pine? I though you used apt-get?!

pine is `special'.  That's in the sense of `retarded'.  the license
doesn't permit redistribution of modified versions, so debian distributes
(in non-free) the source code and patches.  you then build it yourself.

-- 
Revolutions do not require corporate support.


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On Sun, Jul 14, 2002 at 12:17:46PM +0300, Stephan Trajkoff wrote:
> my clients want pine, not mutt

i have to say i think you're a complete lunatic for wanting to support
`clients' on a K class running PA/Linux right now.

-- 
Revolutions do not require corporate support.


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Am 15.07.2002 um 13:55:50 +0100 schrieb Matthew Wilcox folgendes:

> pine is `special'.  That's in the sense of `retarded'.  the license
> doesn't permit redistribution of modified versions, so debian distributes
> (in non-free) the source code and patches.  you then build it yourself.

Awesome. I notice that all that ever come from UW is crap:

* UW-imap: bugs galore
* UW-pine: strage license
* WUftp: bugs galore

These guys should not be let anywhere near a computer, at least not to
write software.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Die kuerzesten Computerwitze:
1) Muesste laufen.



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My K class server works perfect with 240 users for mail.
this server has apache, squid, pine,qmail
4 cpu with 120mhz, 512mb ramm, 18GB HDD, what more???
my linux in my ISP is with P3 800Mhz, 256mb ram, 20GB HDD wtih apache, 
mysql, radius, routing, shapers.
Why did you call me lunatic???
Do you think that other servers in Bulgaria are P4 1.xGhz or palomino 
1.xGhz, the average is 500-1000Mhz celerons or p3
The old server was IBM7248-120, powerpc 133mhz, 32mb ram, 1.2GB SCSI HDD 
and hosted 240 users
It is bulgaria man, it is the reality:)
Come here and see motor scooter 50cc runing at 80km/h:)))





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In Bulgaria there is no licences :))) for UNIX software...



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On Mon, 2002-07-15 at 14:20, Matthew Wilcox wrote:
> On Sun, Jul 14, 2002 at 12:17:46PM +0300, Stephan Trajkoff wrote:
> > my clients want pine, not mutt
> 
> i have to say i think you're a complete lunatic for wanting to support
> `clients' on a K class running PA/Linux right now.

Someone has to go first. I ran www.linux.org.uk on the first ever Mac68K
Linux box and that helped no end in the stabilisation process.

[ObOnTopic] What is the state of the 2.4 pa-risc code in terms of rate
of change now. Would it be a good time to use -ac as a real sync up ?



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On Mon, Jul 15, 2002 at 04:27:05PM +0300, Stephan Trajkoff wrote:

> My K class server works perfect with 240 users for mail.
> this server has apache, squid, pine,qmail

Quite nice.

> 4 cpu with 120mhz, 512mb ramm, 18GB HDD, what more???

* squid doesn't actually use more than one processor (state machine!)
* qmail is I/O bound.

Only a new Apache2 would benefit from a multi processor box.
If you replace qmail with postfix, you might speed things up a bit.

> my linux in my ISP is with P3 800Mhz, 256mb ram, 20GB HDD wtih apache, 
> mysql, radius, routing, shapers.
> Why did you call me lunatic???

Because Linux isn't really as stable on HPPA as on say Alpha or x386!

> Come here and see motor scooter 50cc runing at 80km/h:)))

I bet it's against the law :)

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
Went to Stop&Go to get ANOTHER case of insert favorite caffinated beverage here 



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Am 15.07.2002 um 15:37:59 +0100 schrieb Alan Cox folgendes:

> Someone has to go first. I ran www.linux.org.uk on the first ever Mac68K
> Linux box and that helped no end in the stabilisation process.
> 
> [ObOnTopic] What is the state of the 2.4 pa-risc code in terms of rate
> of change now. Would it be a good time to use -ac as a real sync up ?

Whoa! What an honor!
I was already wondering how to get all that pa5x stuff back into the
mainline 2.4.x kernel.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
"If it is blue and winding, it is biology. If it stinks, it is chemistry. If
it doesnt work, it is physics. If it is unintelligible, it is mathematics.
If it is all of above, it must has been made by M$."      -- Holger Dittmann



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On Mon, Jul 15, 2002 at 03:37:59PM +0100, Alan Cox wrote:
> On Mon, 2002-07-15 at 14:20, Matthew Wilcox wrote:
> > i have to say i think you're a complete lunatic for wanting to support
> > `clients' on a K class running PA/Linux right now.
> 
> Someone has to go first. I ran www.linux.org.uk on the first ever Mac68K
> Linux box and that helped no end in the stabilisation process.

Certainly, and I'm aware of people using PA/Linux in production environments
today.  But the K class hardware is not well supported.  Lan and Console
are the only two devices which really work; the SCSI cards don't use the
normal NCR/Symbios chips but a proprietary chip instead.

Hmm.. anyone want to do a `testimonials' section on the website which
lists peoples (successful ;-) experiences with using PA/Linux in
production environments?

> [ObOnTopic] What is the state of the 2.4 pa-risc code in terms of rate
> of change now. Would it be a good time to use -ac as a real sync up ?

rate of change is fairly low; i attempted to do a merge with marcelo
during early 2.4.19 dev, but someone sent some conflicting patches in
first, i tripped over my own feet trying to use bitkeeper and ran out
of motivation to fix conflicts myself.

at OLS we decided to concentrate on 2.5 RSN.  it's more important to
work on that than keep trying to push bits into 2.4.

-- 
Revolutions do not require corporate support.


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I think that HPPA run better than AIX 4.1.4 on PowerPC 7248-120:)
my K class servers are perfect:)))
Btw, which K class, K200,K210 or K3xx?
My K class has STI framebuffer, lasi i82596, scsi ncr53c720 running with 
zalon driver
The problem is that when I torming my machine with compilation my 'ps 
ax' and 'w' hangs...:(((
But for 2 weeks no one time my machine hangs??!?!?!
What you will say for this?!?!?




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From: Ralf Hildebrandt <Ralf.Hildebrandt@charite.de>
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On Mon, Jul 15, 2002 at 04:44:30PM +0300, Stephan Trajkoff wrote:

> I think that HPPA run better than AIX 4.1.4 on PowerPC 7248-120:)
> my K class servers are perfect:)))
> Btw, which K class, K200,K210 or K3xx?
> My K class has STI framebuffer, lasi i82596, scsi ncr53c720 running with 
> zalon driver
> The problem is that when I torming my machine with compilation my 'ps 
> ax' and 'w' hangs...:(((
> But for 2 weeks no one time my machine hangs??!?!?!

I think this is the known SMP problem.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
          Yesterday it worked.
          Today it is not working.
          Windows is like that.



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On Mon, 2002-07-15 at 14:39, Matthew Wilcox wrote:
> > [ObOnTopic] What is the state of the 2.4 pa-risc code in terms of rate
> > of change now. Would it be a good time to use -ac as a real sync up ?
> 
> rate of change is fairly low; i attempted to do a merge with marcelo
> during early 2.4.19 dev, but someone sent some conflicting patches in
> first, i tripped over my own feet trying to use bitkeeper and ran out
> of motivation to fix conflicts myself.

People who do merges dont use bitkeeper

> at OLS we decided to concentrate on 2.5 RSN.  it's more important to
> work on that than keep trying to push bits into 2.4.

Is there somewhere I can yank a definitive stable 2.4 tree and I'll take
a look at the 2.4 stuff. I've had a bit of practice at the merging game
8)



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On Mon, Jul 15, 2002 at 03:57:48PM +0100, Alan Cox wrote:
> Is there somewhere I can yank a definitive stable 2.4 tree and I'll take
> a look at the 2.4 stuff. I've had a bit of practice at the merging game
> 8)

http://ftp.parisc-linux.org/cvs/linux-2.4.18-pa55.tar.gz (29MB)

-- 
Revolutions do not require corporate support.


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On Mon, Jul 15, 2002 at 12:29:19PM +0100, Matthew Wilcox wrote:
> On Mon, Jul 15, 2002 at 01:42:19AM -0600, Grant Grundler wrote:
> > Randolph and I think most SMP bugs reported (and we seen ourselves)
> > suggest a D-cache problem.
> 
> Entirely plausible.  PA has bigger virtually indexed caches than anyone
> else, so we're more susceptible to cache aliasing bugs than anyone else.
> It could be a missing flush somewhere in the arch-independent code.

My machine isn't SMP but could a similar bug cause the problem to occur between
the CPU and the DMA controller of the SCSI card ?

patrick



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On Mon, Jul 15, 2002 at 02:57:57PM +0100, Patrick Caulfield wrote:
> My machine isn't SMP but could a similar bug cause the problem to occur between
> the CPU and the DMA controller of the SCSI card ?

you're on a C110, right?  that has a ccio IOC so you shouldn't have any
problems, unless there's a driver bug.  and the symbios driver gets a
lot of testing ;-)

what we could be seeing on your machine is incoherency between user &
kernel space.

-- 
Revolutions do not require corporate support.


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On Mon, Jul 15, 2002 at 03:10:13PM +0100, Matthew Wilcox wrote:
> On Mon, Jul 15, 2002 at 02:57:57PM +0100, Patrick Caulfield wrote:
> > My machine isn't SMP but could a similar bug cause the problem to occur between
> > the CPU and the DMA controller of the SCSI card ?
> 
> you're on a C110, right?  that has a ccio IOC so you shouldn't have any
> problems, unless there's a driver bug.  and the symbios driver gets a
> lot of testing ;-)

yes.
 
> what we could be seeing on your machine is incoherency between user &
> kernel space.

ah OK. makes sense.

patrick



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On Mon, 2002-07-15 at 14:55, Matthew Wilcox wrote:
> On Mon, Jul 15, 2002 at 03:57:48PM +0100, Alan Cox wrote:
> > Is there somewhere I can yank a definitive stable 2.4 tree and I'll take
> > a look at the 2.4 stuff. I've had a bit of practice at the merging game
> > 8)
> 
> http://ftp.parisc-linux.org/cvs/linux-2.4.18-pa55.tar.gz (29MB)

Munch...

I'll let folks know how it goes



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> > Hmm I am also curious to test your .config file?

i'm using the default config...

arch/parisc/debian-config/64-smp

> How do you build gcc (3.1.1) natively or as crosscompiler (I do the last may be
> it is the problem?)?

cross-compiler, hppa-linux->hppa64-linux

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> (I just note on the sti console)
> sshd (pid 322): illegal instruction (code 8)
> ...
> kernel panic...

This is just a guess but I will wager that this problem is related
to the problems with expect, the cc1plus crash and the mmap issues noted
elsewhere with SMP kernels.  There seem to be circumstances where the
kernel crashes when a user application traps unexpectedly.

Joel, you should be able to run sshd under gdb and find what the
cause of the illegal instruction is.  It should not be a problem
to download and build 3.4p1 with gcc 3.2 from <http://www.openssh.org>.
Build at -O1 with debugging enabled.  There are examples on their
mail list on how to run sshd in debug mode.  If the situation is
similar to the cc1plus crash, gdb will prevent the system from
crashing when the fault occurs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Wed, Jul 10, 2002 at 01:44:19PM -0400, John David Anglin wrote:
> Moving the code to hpux11, this is the error that causes the crash:
> 
> stage1/xgcc -Bstage1/ -B/opt/gnu/hppa2.0w-hp-hpux11.11/bin/ -c -DIN_GCC    -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H    -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/cfgbuil
> d.c -o cfgbuild.o
> Pi 16528 received a SIGSEGV for stck growth ailure.
> Possible caues: insufficient memory or swap space,
> or stack size exceeded maxssiz. 
> xgcc: Internal error: Segmentation fault (program cc1)

hrm.  i wonder what happens when we run off the top of the stack ...

-- 
Revolutions do not require corporate support.


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Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> > (I just note on the sti console)
> > sshd (pid 322): illegal instruction (code 8)
> > ...
> > kernel panic...
> 
> This is just a guess but I will wager that this problem is related
> to the problems with expect, the cc1plus crash and the mmap issues
> noted
> elsewhere with SMP kernels.  There seem to be circumstances where the
> kernel crashes when a user application traps unexpectedly.
> 
> Joel, you should be able to run sshd under gdb and find what the
> cause of the illegal instruction is.  It should not be a problem
> to download and build 3.4p1 with gcc 3.2 from <http://www.openssh.org>.
> Build at -O1 with debugging enabled.  There are examples on their
> mail list on how to run sshd in debug mode.  If the situation is
> similar to the cc1plus crash, gdb will prevent the system from
> crashing when the fault occurs.
> 
Ok Dave,

I will have a look.

Thanks a lot,
    Joel


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Quoting Randolph Chung <randolph@tausq.org>:

> > > Hmm I am also curious to test your .config file?
> 
> i'm using the default config...
> 
> arch/parisc/debian-config/64-smp

I will try (but I need to add md support now)

> 
> > How do you build gcc (3.1.1) natively or as crosscompiler (I do the
> last may be
> > it is the problem?)?
> 
> cross-compiler, hppa-linux->hppa64-linux
I just do hppa-linux->hppa-linux?

So I will first change my config file and let you inform.

Thanks for info,
    Joel


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> hrm.  i wonder what happens when we run off the top of the stack ...

we seem to handle this properly at least most of the time.

i have tried various recursive function call cases and at least simple
tests don't crash the system (we just get a segfault)

randolph


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> This is just a guess but I will wager that this problem is related
> to the problems with expect, the cc1plus crash and the mmap issues noted
> elsewhere with SMP kernels.  There seem to be circumstances where the
> kernel crashes when a user application traps unexpectedly.

in at least some of the cases, i've seen one CPU is processing an
unaligned trap for a kernel space insn. i don't see how the particular
pieces of code that's causing the trap are unaligned tho (eg.
search_exception_table).

One thing about the unaligned handler is that it wlil fail silently
while handling "non-trivial" load/store insns. For example, it doesn't
handle the ma/mb or m/sm completors for displacement/indexed
load/stores.

It is possible that we haven't needed these in the past for kernel-space
with gcc-3.0, but gcc-3.[12] have different optimizations that
generate these instructions which we do not handle properly in unaligned
cases. Although I think this may just be masking an underlying problem.

I'm working on a more complete unaligned handler to see if that makes a
difference. Unfortunately I've found that sometimes when the kernel code
is modified in trivial ways (adding printk's, etc) the behaviors become
quite different. This definitely suggests some kind of cache flushing
problem as Grant described elsewhere.

randolph


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> in at least some of the cases, i've seen one CPU is processing an
> unaligned trap for a kernel space insn. i don't see how the particular
> pieces of code that's causing the trap are unaligned tho (eg.
> search_exception_table).
> 
> One thing about the unaligned handler is that it wlil fail silently
> while handling "non-trivial" load/store insns. For example, it doesn't
> handle the ma/mb or m/sm completors for displacement/indexed
> load/stores.

Is --disable-indexing used in kernel builds?  This should stop gcc
from generating the above.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Is --disable-indexing used in kernel builds?  This should stop gcc
> from generating the above.

Oops, that should be "-mdisable-indexing".

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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In reference to a message from John David Anglin, dated Jul 15:
> > Is --disable-indexing used in kernel builds?  This should stop gcc
> > from generating the above.
> 
> Oops, that should be "-mdisable-indexing".

right now we use:
-Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer
-fno-strict-aliasing -fno-common -D__linux__ -pipe -fno-strength-reduce
-mno-space-regs -mfast-indirect-calls -mdisable-fpregs
-ffunction-sections -march=2.0 -mschedule=8000

(the last two are only for pa8x00 builds...)

i'll try the disable-indexing stuff...

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> Is --disable-indexing used in kernel builds?  This should stop gcc
> from generating the above.
> 
AFAIK no (I will try tomorrow, I had to leave now :( )

Joel


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On Mon, Jul 15, 2002 at 10:32:33AM -0700, Randolph Chung wrote:
> In reference to a message from John David Anglin, dated Jul 15:
> > > Is --disable-indexing used in kernel builds?  This should stop gcc
> > > from generating the above.
> > 
> > Oops, that should be "-mdisable-indexing".
> 
> right now we use:
> -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer
> -fno-strict-aliasing -fno-common -D__linux__ -pipe -fno-strength-reduce
> -mno-space-regs -mfast-indirect-calls -mdisable-fpregs
> -ffunction-sections -march=2.0 -mschedule=8000
> 
> (the last two are only for pa8x00 builds...)
> 
> i'll try the disable-indexing stuff...

while we're on the subject of gcc flags ...

right now, we have an interesting patch in the kernel to get around a
fun feature of the PA ABI that no other ABI seems to have:

-asmlinkage ssize_t sys_pread(unsigned int fd, char * buf,
-                            size_t count, loff_t pos)
+static inline
+ssize_t do_pread(unsigned int fd, char * buf, size_t count, loff_t pos)
[...]
+#if BITS_PER_LONG == 32
+#ifdef __BIG_ENDIAN
+#define LOFF_T(high, low) unsigned int high, unsigned int low
+#else
+#define LOFF_T(high, low) unsigned int low, unsigned int high
+#endif
+
+asmlinkage
+ssize_t sys_pread(unsigned int fd, char *buf, size_t count, LOFF_T(high, low))
+{
+       return do_pread(fd, buf, count, (loff_t)high << 32 | low);
+}
+
+ssize_t sys_pwrite(unsigned int fd, char *buf, size_t count, LOFF_T(high, low))
+{
+       return do_pwrite(fd, buf, count, (loff_t)high << 32 | low);
+}

the problem is that the PA ABI specifies that quantities shall be
`naturally' aligned, even 64-bit quantities on 32-bit machines.  so the
kernel is expecting to see:

	fd (32 bits)
	buf (32 bits)
	count (32 bits)
	(empty)
	pos (64 bits)

what it _actually_ gets (because glibc is hideously broken, IMO):

	fd
	buf
	count
	(pos >> 32)
	pos & 0xffffffff

is there any chance of having a flag (or maybe an __attribute__ that
we could #define asmlinkage to?) which would change the ABI to be more
compressed like all the other architectures?

-- 
Revolutions do not require corporate support.


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> the problem is that the PA ABI specifies that quantities shall be
> `naturally' aligned, even 64-bit quantities on 32-bit machines.  so the
> kernel is expecting to see:
> 
> 	fd (32 bits)
> 	buf (32 bits)
> 	count (32 bits)
> 	(empty)
> 	pos (64 bits)
> 
> what it _actually_ gets (because glibc is hideously broken, IMO):
> 
> 	fd
> 	buf
> 	count
> 	(pos >> 32)
> 	pos & 0xffffffff

It's probably a whole lot easier to fix glibc than change gcc.

> is there any chance of having a flag (or maybe an __attribute__ that
> we could #define asmlinkage to?) which would change the ABI to be more
> compressed like all the other architectures?

I think this is basically a bad idea as it will have a whole lot
of nasty side effects.  How will gdb know which ABI, varargs, etc?

You would need to use a compiler switch and modify
FUNCTION_ARG_PARTIAL_NREGS and FUNCTION_ARG appropriately.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Can anybody forward www.bg.parisc-linux.org to 195.96.226.1?
I made mirror of parisc-linux.org but I haven't DNS records

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Matthew Wilcox wrote:
> But the K class hardware is not well supported.  Lan and Console
> are the only two devices which really work; the SCSI cards don't use the
> normal NCR/Symbios chips but a proprietary chip instead.

Not entirely correct. K-class has both HSC (GSC follow-on) and HP-PB "slots".
IIRC, the built-in SCSI is HSC based. But you are right in that all the HP-PB
crud isn't supported.

> Hmm.. anyone want to do a `testimonials' section on the website which
> lists peoples (successful ;-) experiences with using PA/Linux in
> production environments?

ESIEE folks have that already in their "what's supported" HW listing.
Please see the ESIEE "puffin" site for where to submit them.

> > [ObOnTopic] What is the state of the 2.4 pa-risc code in terms of rate
> > of change now. Would it be a good time to use -ac as a real sync up ?
> 
> rate of change is fairly low; i attempted to do a merge with marcelo
> during early 2.4.19 dev, but someone sent some conflicting patches in
> first, i tripped over my own feet trying to use bitkeeper and ran out
> of motivation to fix conflicts myself.

I agree, hppa is quite stable on UP and most SMP systems.
BTW - no one ever said "Thank you" for doing that - kudos!

> at OLS we decided to concentrate on 2.5 RSN.  it's more important to
> work on that than keep trying to push bits into 2.4.

yes - but I'd still like to see our changes get into 2.4.
I just want to be doing development on 2.5.

Alan Cox wrote:
| Is there somewhere I can yank a definitive stable 2.4 tree and I'll take
| a look at the 2.4 stuff. I've had a bit of practice at the merging game
| 8)

Just a bit? ;^)

For a full source tree:
	ftp://ftp.parisc-linux.org/cvs/linux-latest.tar.gz

lrwxrwxrwx    1 bame     ftpadmin       24 Jul 13 18:35 linux-latest.tar.gz -> linux-2.4.18-pa55.tar.gz
-rw-r--r--    1 bame     ftpadmin 30508560 Jul 13 18:35 linux-2.4.18-pa55.tar.gz

hth,
grant


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Subject: Re: [parisc-linux] 2.4.19 merge
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[ sorry - change the subject line ]

Alan Cox wrote:
> [ObOnTopic] What is the state of the 2.4 pa-risc code in terms of rate
> of change now. Would it be a good time to use -ac as a real sync up ?

BTW, I've been testing Ivan K's PCI rewrite/changes on A500 for the past
couple of monthes but never committed those to CVS. I guess I didn't
want more churn until Ivan could tell me his bits were in 2.4.

Basically with his code, I needed few or no changes to drivers/pci.
I'd have to review the diff again.
Ivan last sent me a patch on 18.4.2002.
You want matching changes for arch/parisc as well?

thanks,
grant


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] 2.4.19 merge
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On Tue, 2002-07-16 at 00:03, Grant Grundler wrote:
> 
> [ sorry - change the subject line ]
> 
> Alan Cox wrote:
> > [ObOnTopic] What is the state of the 2.4 pa-risc code in terms of rate
> > of change now. Would it be a good time to use -ac as a real sync up ?
> 
> BTW, I've been testing Ivan K's PCI rewrite/changes on A500 for the past
> couple of monthes but never committed those to CVS. I guess I didn't
> want more churn until Ivan could tell me his bits were in 2.4.
> 
> Basically with his code, I needed few or no changes to drivers/pci.
> I'd have to review the diff again.
> Ivan last sent me a patch on 18.4.2002.
> You want matching changes for arch/parisc as well?

That would be interesting to see yes



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Subject: Re: [parisc-linux] 2.4.19 merge
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Seems like the merge already begun:

http://linuxtoday.com/news_story.php3?ltsn=2002-07-15-015-26-NW-KN-DV

-- 
      Rafael



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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] gcc-3.[02] alignment problem
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Compiling the linux kernel (2.4.19-rc1-ac5) with hppa64-linux-gcc 
(3.0.4 or 3.2) gives:

tausq@a500:~/src/linux-2.4.19-rc1/net/ipv4$ hppa64-linux-gcc -D__KERNEL__ -I/home/tausq/src/linux-2.4.19-rc1/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000   -nostdinc -I /usr/lib/gcc-lib/hppa64-linux/3.0/include -DKBUILD_BASENAME=tcp_diag  -c -o tcp_diag.o tcp_diag.c
{standard input}: Assembler messages:
{standard input}:138: Error: Field not properly aligned [8] (44).
{standard input}:138: Error: Invalid operands
{standard input}:609: Error: Field not properly aligned [8] (44).
{standard input}:609: Error: Invalid operands
{standard input}:707: Error: Field not properly aligned [8] (44).
{standard input}:707: Error: Invalid operands

preprocessed source attached.

(incidentally, we also see this while building glibc...)

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] 2.4.19 merge
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Alan Cox wrote:
> > Basically with his code, I needed few or no changes to drivers/pci.
> > I'd have to review the diff again.
> > Ivan last sent me a patch on 18.4.2002.
> > You want matching changes for arch/parisc as well?
> 
> That would be interesting to see yes

Original diff from Ivan (plus email comments) is
	ftp://ftp.parisc-linux.org/patches/pci-20020418-ink.diff

Diff against -pa55 (including my changes) is at:
	ftp://ftp.parisc-linux.org/patches/pci-20020418-pa55.diff

DEBUG should probably be disabled in drivers/pci/setup-bus.c.

grant


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Grant Grundler wrote:

>Matthew Wilcox wrote:
>  
>
>>But the K class hardware is not well supported.  Lan and Console
>>are the only two devices which really work; the SCSI cards don't use the
>>normal NCR/Symbios chips but a proprietary chip instead.
>>    
>>
>
>Not entirely correct. K-class has both HSC (GSC follow-on) and HP-PB "slots".
>IIRC, the built-in SCSI is HSC based. But you are right in that all the HP-PB
>crud isn't supported.
>
>  
>
>>Hmm.. anyone want to do a `testimonials' section on the website which
>>lists peoples (successful ;-) experiences with using PA/Linux in
>>production environments?
>>    
>>
>
>ESIEE folks have that already in their "what's supported" HW listing.
>Please see the ESIEE "puffin" site for where to submit them.
>  
>
I don't think Matthew wath thinking about that. This HW list gives just 
an indication if this is working or not.
What I understand here is a list of something like:
I currently use a B132 in production environment since November, 2001. 
It provides a CVS server, apache with PHP and  a postgresql database. 
The kernel is pretty old (2.4.14-32), but the only shutdown (and end of 
services) I had to notice where caused by powerfailure.
Use of Php is quite recent.
Matthew, does these (real) example correspond to your suggestion?

>  
>
>[...]
>
>hth,
>grant
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
>  
>





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Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> > Is --disable-indexing used in kernel builds?  This should stop gcc
> > from generating the above.
> 
> Oops, that should be "-mdisable-indexing".

Sorry Dave,

it do not help (system still crashing)

Joel


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On Tue, 2002-07-16 at 06:00, Randolph Chung wrote:
> Compiling the linux kernel (2.4.19-rc1-ac5) with hppa64-linux-gcc 
> (3.0.4 or 3.2) gives:
> 
> tausq@a500:~/src/linux-2.4.19-rc1/net/ipv4$ hppa64-linux-gcc -D__KERNEL__ -I/home/tausq/src/linux-2.4.19-rc1/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000   -nostdinc -I /usr/lib/gcc-lib/hppa64-linux/3.0/include -DKBUILD_BASENAME=tcp_diag  -c -o tcp_diag.o tcp_diag.c
> {standard input}: Assembler messages:
> {standard input}:138: Error: Field not properly aligned [8] (44).
> {standard input}:138: Error: Invalid operands

The pa-risc tree has a disgusting hack to work around this. Its one of
the bits I have down in the "vomit grade" pile of bits to look into
during the rest of the merge.




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On Tue, 2002-07-16 at 00:30, Rafael E. Herrera wrote:
> Seems like the merge already begun:
> 
> http://linuxtoday.com/news_story.php3?ltsn=2002-07-15-015-26-NW-KN-DV

Thats the easy 90%. The stuff which doesn't overlap other platforms is
in there so I have a tree that I can point people back to if we get
breakage from later merges.

Some of it like the PCI changes is going to be hard.



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From: Thibaut VARENE <varenet@esiee.fr>
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Le mardi 16 juillet 2002, =E0 09:29 , Matthieu Delahaye a =E9crit :

> Grant Grundler wrote:
>
>> Matthew Wilcox wrote:
>>
>>> Hmm.. anyone want to do a `testimonials' section on the website =
which
>>> lists peoples (successful ;-) experiences with using PA/Linux in
>>> production environments?
>>>
>>
>> ESIEE folks have that already in their "what's supported" HW listing.
>> Please see the ESIEE "puffin" site for where to submit them.
>>
> I don't think Matthew wath thinking about that. This HW list gives =
just=20
> an indication if this is working or not.
> What I understand here is a list of something like:
> I currently use a B132 in production environment since November, 2001.=20=

> It provides a CVS server, apache with PHP and  a postgresql database.=20=

> The kernel is pretty old (2.4.14-32), but the only shutdown (and end =
of=20
> services) I had to notice where caused by powerfailure.
> Use of Php is quite recent.
> Matthew, does these (real) example correspond to your suggestion?
>
Hi fellows!

I'm currently working on a big review of our supported hardware list.
A testimonial section is definitely something that can be considered !

Please check this mail i sent a month ago about this review:
http://lists.parisc-linux.org/pipermail/parisc-
linux/2002-June/016572.html

I'd enjoy any feedback about it, and of course any supplementary=20
testimonial
would be greatly welcomed.

Thank you for your support,


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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On Tue, Jul 16, 2002 at 09:29:12AM +0200, Matthieu Delahaye wrote:
> I don't think Matthew wath thinking about that. This HW list gives just 
> an indication if this is working or not.
> What I understand here is a list of something like:
> I currently use a B132 in production environment since November, 2001. 
> It provides a CVS server, apache with PHP and  a postgresql database. 
> The kernel is pretty old (2.4.14-32), but the only shutdown (and end of 
> services) I had to notice where caused by powerfailure.
> Use of Php is quite recent.
> Matthew, does these (real) example correspond to your suggestion?

Yep, that's perfect!

-- 
Revolutions do not require corporate support.


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> Compiling the linux kernel (2.4.19-rc1-ac5) with hppa64-linux-gcc 
> (3.0.4 or 3.2) gives:
> 
> tausq@a500:~/src/linux-2.4.19-rc1/net/ipv4$ hppa64-linux-gcc -D__KERNEL__ -I/home/tausq/src/linux-2.4.19-rc1/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000   -nostdinc -I /usr/lib/gcc-lib/hppa64-linux/3.0/include -DKBUILD_BASENAME=tcp_diag  -c -o tcp_diag.o tcp_diag.c
> {standard input}: Assembler messages:
> {standard input}:138: Error: Field not properly aligned [8] (44).
> {standard input}:138: Error: Invalid operands
> {standard input}:609: Error: Field not properly aligned [8] (44).
> {standard input}:609: Error: Invalid operands
> {standard input}:707: Error: Field not properly aligned [8] (44).
> {standard input}:707: Error: Invalid operands
> 
> preprocessed source attached.
> 
> (incidentally, we also see this while building glibc...)
> 
> randolph

Preprocessed source attached?

Remember we ran into this when building glibc at OLS.... and
we sat there scratching our heads. I'm pretty sure this was the
reason for the hppa-align.dpatch that is part of debianzed gcc?

Randolph: There is a forward email inside the dpatch that says
you were going to try get this patch upstream... ? :)
(gcc 3.0.4 ./debian/patches/hppa-align.dpatch)

c.


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Hi all,

I running a b180 with md and I could recover a second b180.

It would be nice to build a cluster 'a la MC/SG'.

I found well openmosix but only i386 afaik (and there is too much asm code for
me to tempt a portage).

There is also beowulf but the only HOWTO I found concern kernel 2.0 ? (more over
my network connection are limited (10Mb) and it does not seems to cover my
whishes (HA cluster)).

Any other advise?

Thanks a lot,
    Joel

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Xref: news.gmane.org gmane.linux.ports.parisc:15512

You should probably start looking at www.linux-ha.org - this site has
links to many HA projects and is the source for 'heartbeat'.

R.
PeteM

On Tue, 16 Jul 2002, joel.soete@freebel.net wrote:

> Hi all,
>
> I running a b180 with md and I could recover a second b180.
>
> It would be nice to build a cluster 'a la MC/SG'.
>
> I found well openmosix but only i386 afaik (and there is too much asm code for
> me to tempt a portage).
>
> There is also beowulf but the only HOWTO I found concern kernel 2.0 ? (more over
> my network connection are limited (10Mb) and it does not seems to cover my
> whishes (HA cluster)).
>
> Any other advise?
>
> Thanks a lot,
>     Joel
>
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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Xref: news.gmane.org gmane.linux.ports.parisc:15513

Hi everybody,

My doubt is if there is a version of Debian for my hardware (PA 9000 D-class). 
I found 9000/720 and 9000/735. This versions grants compatibility with all 9000 
series?

Thanks in advance.
-- 
Trcio R. Bezerra
Gerente de Tecnologia da Informao
Centro Federal de Educao Tecnolgica de Alagoas





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Xref: news.gmane.org gmane.linux.ports.parisc:15514

Hi,

Is my hardware (hppa 9000 D-class)supported by Debian Linux for parisc? I 
visited the site and I have doubt if it does (i found 9000/720 and 9000/735 
support).

Thanks in advance.
-- 
Trcio R. Bezerra
Gerente de Tecnologia da Informao
Centro Federal de Educao Tecnolgica de Alagoas


Citando parisc-linux-request@lists.parisc-linux.org:

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Xref: news.gmane.org gmane.linux.ports.parisc:15515

> Hi all,
> I running a b180 with md and I could recover a second b180.
> It would be nice to build a cluster 'a la MC/SG'.
> I found well openmosix but only i386 afaik (and there is too much asm code for
> me to tempt a portage).
> There is also beowulf but the only HOWTO I found concern kernel 2.0 ? (more over
> my network connection are limited (10Mb) and it does not seems to cover my
> whishes (HA cluster)).
> 
> Any other advise?
> Thanks a lot,
>     Joel
>

Linux Virtual Server Project?
http://www.linuxvirtualserver.org/

You definately don't want MOSIX for HA. If the system that spawned
the process dies, then so does the process. The MOSIX stubs just
marshall data, and in most cases for simple things call directly
to the kernel that the process has migrated towards.

I would really like to see a port of bproc to parisc :)
(I figure on ~100 lines of assembly to get process state information).
I spoke to Donald Becker at OLS about this, and it's on my todo
list... might get done in September.

c.


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> Hi,
> Is my hardware (hppa 9000 D-class)supported by Debian Linux for parisc? I 
> visited the site and I have doubt if it does (i found 9000/720 and 9000/735 
> support).
> Thanks in advance.
> -- 
> T?rcio R. Bezerra
> Gerente de Tecnologia da Informa??o
> Centro Federal de Educa??o Tecnol?gica de Alagoas

You can check out the current hardware database:
http://hwdb.parisc-linux.org/

In particular:
http://hwdb.parisc-linux.org/view.php3?type=machine&name=720

It looks happily supported :)

c.


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Quoting Carlos O'Donell <carlos@baldric.uwo.ca>:

> > Hi all,
> > I running a b180 with md and I could recover a second b180.
> > It would be nice to build a cluster 'a la MC/SG'.
> > I found well openmosix but only i386 afaik (and there is too much asm
> code for
> > me to tempt a portage).
> > There is also beowulf but the only HOWTO I found concern kernel 2.0 ?
> (more over
> > my network connection are limited (10Mb) and it does not seems to
> cover my
> > whishes (HA cluster)).
> > 
> > Any other advise?
> > Thanks a lot,
> >     Joel
> >
> 
> Linux Virtual Server Project?
> http://www.linuxvirtualserver.org/
> 
> You definately don't want MOSIX for HA. If the system that spawned
> the process dies, then so does the process. The MOSIX stubs just
> marshall data, and in most cases for simple things call directly
> to the kernel that the process has migrated towards.
> 
> I would really like to see a port of bproc to parisc :)
> (I figure on ~100 lines of assembly to get process state information).
> I spoke to Donald Becker at OLS about this, and it's on my todo
> list... might get done in September.
> 
> c.
> 
Great, I will awaiting so.

Joel


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diff -u --new-file --recursive --exclude-from /usr/src/exclude
linux.vanilla/ar
--- linux.vanilla/arch/ia64/kernel/perfmon.c    Fri Nov  9 22:26:17 2001
+++ linux-hppa/arch/ia64/kernel/perfmon.c       Wed Aug 15 18:07:26 2001
@@ -38,7 +38,7 @@  
 
 #ifdef CONFIG_PERFMON
 
-#define PFM_VERSION            "0.3"
+#define PFM_VERSION            "0.2"
 #define PFM_SMPL_HDR_VERSION   1
 
 #define PMU_FIRST_COUNTER      4       /* first generic counter */
@@ -52,7 +52,6 @@
 #define PFM_DISABLE            0xa6    /* freeze only */
 #define PFM_RESTART            0xcf
 #define PFM_CREATE_CONTEXT     0xa7



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On Tue, Jul 16, 2002 at 04:11:28PM +0100, Alan Cox wrote:
> diff -u --new-file --recursive --exclude-from /usr/src/exclude
> linux.vanilla/ar
> --- linux.vanilla/arch/ia64/kernel/perfmon.c    Fri Nov  9 22:26:17 2001
> +++ linux-hppa/arch/ia64/kernel/perfmon.c       Wed Aug 15 18:07:26 2001
> @@ -38,7 +38,7 @@  
>  
>  #ifdef CONFIG_PERFMON
>  
> -#define PFM_VERSION            "0.3"
> +#define PFM_VERSION            "0.2"
>  #define PFM_SMPL_HDR_VERSION   1
>  
>  #define PMU_FIRST_COUNTER      4       /* first generic counter */
> @@ -52,7 +52,6 @@
>  #define PFM_DISABLE            0xa6    /* freeze only */
>  #define PFM_RESTART            0xcf
>  #define PFM_CREATE_CONTEXT     0xa7

looks like a problem in the cvs tree.  paul, could you look at this?
some interesting bits from the log:

----------------------------
revision 1.6
date: 2001/08/15 17:07:26;  author: bame;  state: Exp;  lines: +7 -17
merged 2.4.8 upstream
----------------------------
revision 1.1
date: 2000/03/15 21:02:27;  author: mang;  state: dead;
branches:  1.1.1;  1.1.2;
file perfmon.c was initially added on branch linus.
----------------------------
revision 1.1.2.1
date: 2000/03/15 21:02:27;  author: mang;  state: Exp;  lines: +244 -0
Update the linus branch to Linus' 2.3.99-pre1. 2.4 is right around
the corner.
----------------------------
revision 1.1.1.6
date: 2001/11/28 05:36:30;  author: bame;  state: Exp;  lines: +729 -388
updating branch linus to LINUS_2416


-- 
Revolutions do not require corporate support.


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Hi all,

Exploring another stuff (gcc bootstrap), I found:
http://www-124.ibm.com/developer/opensource/linux/tools/gcc/ia64cross.tar.gz

to build an ia64 xcompiler (which allow also to build a bootstrap)

I just modify to match my develop env and mainly I added --host=hppa-linux (I am
building gcc-3.2 on a b2000) in the configure:
'$GCC_SRC/gcc/configure --prefix=$TOOLS --enable-languages=c --host=hppa-linux'

Should I had to prefer --target=hppa-linux to build a native bootstrap?

Well this produce well a gcc (bootstrap?).

but when I try to use it to compile kernel-2.4.18-pa54 I got following error:
`gcc -print-libgcc-file-name`
/Develop/parisc-linux/src/linux-2.4.18-pa54/arch/parisc/lib/lib.a
/Develop/parisc-linux/src/linux-2.4.18-pa54/lib/lib.a  \
        --end-group \
        -o vmlinux
arch/parisc/kernel/kernel.o(__ksymtab+0x258): undefined reference to `$$mulU'  
make: *** [vmlinux] Error 1

(after a make distclean; make oldconfig)

What is it wrong?

Or would it be better to continue with xcompiler hppa->hppa?

Many thanks for all,
    Joel





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> Preprocessed source attached?

I forgot it the first time, tried to send it again, but the source was
too large and it got stopped for moderation...

> Remember we ran into this when building glibc at OLS.... and
> we sat there scratching our heads. I'm pretty sure this was the
> reason for the hppa-align.dpatch that is part of debianzed gcc?

the hppa-align patch is for a different problem aiui, it's so that we
don't do multiple ldcw's on the same cache line. 

in any case, 3.0.4 (which has this patch) gives the same error.

> Randolph: There is a forward email inside the dpatch that says
> you were going to try get this patch upstream... ? :)
> (gcc 3.0.4 ./debian/patches/hppa-align.dpatch)

I've tried, but the gcc folks have put in a different mechanism to do
this, so the patch needs to be reworked, and i haven't gotten back to it
yet.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> Thats the easy 90%. The stuff which doesn't overlap other platforms is
> in there so I have a tree that I can point people back to if we get
> breakage from later merges.

Alan, fwiw I'm playing with some arch-specific things that got missed in
the merge so that we can at least get a basic image that builds. Are 
you doing the same, or should we try to get something that will build
and feed that back to you? In any case I have some questions about some
pieces that I'll post here RSN.

> Some of it like the PCI changes is going to be hard.

What's the best way to proceed on this? I can try to merge Grant's
changes into the tree I'm working on and submit a working set (they
don't apply very cleanly directly on the rc1-ac5 tree)

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> I just modify to match my develop env and mainly I added --host=hppa-linux (I am
> building gcc-3.2 on a b2000) in the configure:
> '$GCC_SRC/gcc/configure --prefix=$TOOLS --enable-languages=c --host=hppa-linux'
> 
> Should I had to prefer --target=hppa-linux to build a native bootstrap?

That's unnecessary for native build.

> Well this produce well a gcc (bootstrap?).
> 
> but when I try to use it to compile kernel-2.4.18-pa54 I got following error:
> `gcc -print-libgcc-file-name`
> /Develop/parisc-linux/src/linux-2.4.18-pa54/arch/parisc/lib/lib.a
> /Develop/parisc-linux/src/linux-2.4.18-pa54/lib/lib.a  \
>         --end-group \
>         -o vmlinux
> arch/parisc/kernel/kernel.o(__ksymtab+0x258): undefined reference to `$$mulU'  
> make: *** [vmlinux] Error 1
> 
> (after a make distclean; make oldconfig)
> 
> What is it wrong?

Possibilities are:

  1) you either didn't install what you built.
  2) you moved stuff around so libgcc couldn't be found.
  3) libgcc.a didn't build when you built your cross.
  4) linker script didn't link in libgcc.a.

$$mulU is a millicode routine in libgcc.a.

> Or would it be better to continue with xcompiler hppa->hppa?

You are just adding more complication to the process trying to use
ia64.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > Thanks in advance.
> > -- 
> > T?rcio R. Bezerra
> > Gerente de Tecnologia da Informa??o
> > Centro Federal de Educa??o Tecnol?gica de Alagoas
> 
> You can check out the current hardware database:
> http://hwdb.parisc-linux.org/
> 
> In particular:
> http://hwdb.parisc-linux.org/view.php3?type=machine&name=720
> 
> It looks happily supported :)
>

My mistake, you are looking to see if you D-Class is supported :}
I think D-Class is partially supported... 

The hardware database will still be a good place to look.
And there are some people listed as owning some D-Class systems.

c.


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Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> 
> Possibilities are:
> 
>   1) you either didn't install what you built.
>   2) you moved stuff around so libgcc couldn't be found.
>   3) libgcc.a didn't build when you built your cross.
>   4) linker script didn't link in libgcc.a.
> 
> $$mulU is a millicode routine in libgcc.a.

Humm?
In the debian package gcc-3.0 I found this lib and
strings /usr/lib/gcc-lib/hppa-linux/3.0.4/libgcc.a | grep mulU
show me well two entries.
but in ./native/lib/gcc-lib/hppa-linux/3.2 (as well in ./cross) I do not found
anything like this.
So this is a 5th possibility: the procedure used failled to build correctly this
lib (at least?)

> 
> > Or would it be better to continue with xcompiler hppa->hppa?
> 
> You are just adding more complication to the process trying to use
> ia64.

Oops I wrongly explain (sorry for confusion): I do not use ia64, I just use this
procedure as a model.
I change just enough to run it on my hppa-linux box (a b2000 here) but without
success :(. I still have a lot to learn.

Thanks for info,
    Joel


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> I just modify to match my develop env and mainly I added --host=hppa-linux (I am
> building gcc-3.2 on a b2000) in the configure:
> '$GCC_SRC/gcc/configure --prefix=$TOOLS --enable-languages=c --host=hppa-linux'

fwiw i use something like this:

~/src/gcc-3.2/configure --prefix=/home/tausq/opt/gnu --host=hppa-linux --build=hppa-linux --target=hppa-linux --enable-shared --disable-nls --enable-languages=c

if building hppa64-linux compilers, use --target=hppa64-linux instead.

then i do 'make bootstrap-lean' and then 'make install', set my PATH to
include /home/tausq/opt/gnu/bin, run 'gcc -v' to make sure i have the 
right version in my path, and then build the kernel.

alternatively, if i were building a cross-compiler (say
hppa-linux->hppa64-linux), i would just do 'make' instead of 'make
bootstrap-lean'

hth,
randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Quoting Randolph Chung <randolph@tausq.org>:

> > I just modify to match my develop env and mainly I added
> --host=hppa-linux (I am
> > building gcc-3.2 on a b2000) in the configure:
> > '$GCC_SRC/gcc/configure --prefix=$TOOLS --enable-languages=c
> --host=hppa-linux'
> 
> fwiw i use something like this:
> 
> ~/src/gcc-3.2/configure --prefix=/home/tausq/opt/gnu --host=hppa-linux
> --build=hppa-linux --target=hppa-linux --enable-shared --disable-nls
> --enable-languages=c

A yes (I see)

> 
> if building hppa64-linux compilers, use --target=hppa64-linux instead.
> 
> then i do 'make bootstrap-lean' and then 'make install', set my PATH to
> include /home/tausq/opt/gnu/bin, run 'gcc -v' to make sure i have the 
> right version in my path, and then build the kernel.

The PATH was well set (gcc --version shows me well 3.2 20020711 ...)

> 
> alternatively, if i were building a cross-compiler (say
> hppa-linux->hppa64-linux), i would just do 'make' instead of 'make
> bootstrap-lean'

That make me the idea clear.
Many thanks,
   Joel

PS: humm I found something: mulU stand well in pa.c and pa.o well knows mulU but
is not in libgcc.a but well in libbackend.a?

-------------------------------------------------
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Le mardi 16 juillet 2002, =E0 05:15 , Carlos O'Donell a =E9crit :

>>> Thanks in advance.
>>> --
>>> T?rcio R. Bezerra
>>> Gerente de Tecnologia da Informa??o
>>> Centro Federal de Educa??o Tecnol?gica de Alagoas
>>
>> You can check out the current hardware database:
>> http://hwdb.parisc-linux.org/
>>
>> In particular:
>> http://hwdb.parisc-linux.org/view.php3?type=3Dmachine&name=3D720
>>
>> It looks happily supported :)
>>
>
> My mistake, you are looking to see if you D-Class is supported :}
> I think D-Class is partially supported...
>
> The hardware database will still be a good place to look.
> And there are some people listed as owning some D-Class systems.
>
Also check:
http://pateam.esiee.fr/list.html

you might find interesting info there.

And if you don't; feedback is always welcomed :o)


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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> Compiling the linux kernel (2.4.19-rc1-ac5) with hppa64-linux-gcc 
> (3.0.4 or 3.2) gives:
> 
> tausq@a500:~/src/linux-2.4.19-rc1/net/ipv4$ hppa64-linux-gcc -D__KERNEL__ -I/home/tausq/src/linux-2.4.19-rc1/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000   -nostdinc -I /usr/lib/gcc-lib/hppa64-linux/3.0/include -DKBUILD_BASENAME=tcp_diag  -c -o tcp_diag.o tcp_diag.c
> {standard input}: Assembler messages:
> {standard input}:138: Error: Field not properly aligned [8] (44).
> {standard input}:138: Error: Invalid operands
> {standard input}:609: Error: Field not properly aligned [8] (44).
> {standard input}:609: Error: Invalid operands
> {standard input}:707: Error: Field not properly aligned [8] (44).
> {standard input}:707: Error: Invalid operands

These messages are coming from the assembler (remove "-pipe").  The
first is from "std %r4,44(%r3)".  The offset "44" is not correct for
a store double.  This is probably a problem with pointer arithmetic
in the source.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> These messages are coming from the assembler (remove "-pipe").  The
> first is from "std %r4,44(%r3)".  The offset "44" is not correct for
> a store double.  This is probably a problem with pointer arithmetic
> in the source.

Check the definition of RTA_ALIGNTO in linux/rtnetlink.h.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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In reference to a message from John David Anglin, dated Jul 16:
> > These messages are coming from the assembler (remove "-pipe").  The
> > first is from "std %r4,44(%r3)".  The offset "44" is not correct for
> > a store double.  This is probably a problem with pointer arithmetic
> > in the source.
> 
> Check the definition of RTA_ALIGNTO in linux/rtnetlink.h.

ah, this is not it, but i see what it is now.

include/linux/tcp_diag.h defines:

struct tcpdiag_sockid
{
        __u16   tcpdiag_sport;
        __u16   tcpdiag_dport;
        __u32   tcpdiag_src[4];
        __u32   tcpdiag_dst[4];
        __u32   tcpdiag_if;
        __u32   tcpdiag_cookie[2]; 
#define TCPDIAG_NOCOOKIE (~0U)
};

the code goes on to do:
        *((struct sock **)&r->id.tcpdiag_cookie) = sk;
and
            sk != *((struct sock **)&req->id.tcpdiag_cookie[0]))

even tho tcpdiag_cookie looks like it can be 64-bit aligned in the
struct, it appears that it isn't.... 

the "vomit grade hack" alan mentioned in another post is that in our
tree, we have:

struct tcpdiag_sockid
{
        __u16   tcpdiag_sport;
        __u16   tcpdiag_dport;
        __u32   tcpdiag_src[4];
        __u32   tcpdiag_dst[4];
        __u32   tcpdiag_if;
#if defined (__hppa__) && defined (__LP64__)
        char * parisc_hack_to_align_tcpdiag_cookie;
#endif
        __u32   tcpdiag_cookie[2];
#define TCPDIAG_NOCOOKIE (~0U)
};

why is the offset of tcpdiag_cookie[0] 44 and not 40?

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Tue, Jul 16, 2002 at 10:22:55AM -0700, Randolph Chung wrote:
> include/linux/tcp_diag.h defines:
> 
> struct tcpdiag_sockid
> {
>         __u16   tcpdiag_sport;
>         __u16   tcpdiag_dport;
>         __u32   tcpdiag_src[4];
>         __u32   tcpdiag_dst[4];
>         __u32   tcpdiag_if;
>         __u32   tcpdiag_cookie[2]; 
> #define TCPDIAG_NOCOOKIE (~0U)
> };

> why is the offset of tcpdiag_cookie[0] 44 and not 40?

0	tcpdiag_sport
2	tcpdiag_dport
4	tcpdiag_src
20	tcpdiag_dst
36	tcpdiag_if
40	tcpdiag_cookie

hmm.. worth checking that dport is at offset 2, not offset 4?

-- 
Revolutions do not require corporate support.


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> > but when I try to use it to compile kernel-2.4.18-pa54 I got following error:
> > `gcc -print-libgcc-file-name`
> > /Develop/parisc-linux/src/linux-2.4.18-pa54/arch/parisc/lib/lib.a
> > /Develop/parisc-linux/src/linux-2.4.18-pa54/lib/lib.a  \
> >         --end-group \
> >         -o vmlinux
> > arch/parisc/kernel/kernel.o(__ksymtab+0x258): undefined reference to `$$mulU'  

> $$mulU is a millicode routine in libgcc.a.

Sorry, this routine is no longer in libgcc.a.  It was in the 32-bit
library for 3.0.x.  However, we have switched to the "64-bit" millicode
for both 32 and 64 bit code.  Gcc doesn't use it anymore but I see there
are a couple of remnants to clean up.

Your problem appears to be with arch/parisc/kernel/parisc_ksyms.c.
It imports the symbol.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] HOWTO: Using HIL keyboard and HIL mouse on PARISC
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On Sun, 30 Jun 2002, Matthew Wilcox wrote:

> On Sun, Jun 30, 2002 at 07:33:43PM +0200, Helge Deller wrote:
> > The new HIL drivers were written by Brian S. Julin and I mostly only did some
> > bugfixing, cleanups and re-integration/re-organization  into our CVS kernel.
>
> Thanks to both of you for doing this.  It's great to have support for
> these devices in the Linux kernel.

NP.  There's still a lot of work to do on them; I haven't had much time
recently.  However if not fully functional they are at least
completely stable.  I have them loaded at work and am boasting a pretty
good uptime at this point (many thanks to whoever for doing whatever,
suddently my spurious system hangs came to a stop.)

I like Helge's strategy of moving the old keyboard driver to
a "simple driver" because eventually when all the keymaps are worked out
in the current driver, I think a simpler irq-only read-only interface
(without support for any other HP SDC functions) would be pretty easy
and good to have, and the old driver can be evolved into this whenever the
old linux keyboard system starts to be decomissioned.

Mostly my main concern with the driver right now is it keeps a tasklet
scheduled so often that it affects CPU statistics.  The simple driver
would not do this, but would not be able to support host-to-hil transfers.
Since I have yet to get my hands on any host-to-hil devices yet, I doubt
many people would miss host-to-hil support.

I'm not familiar with the hardware that we are currently getting the
100Hz clock from, but if can, and we do, follow suit with i386 and
increase HZ to 1000 this would make the timing of the driver much easier.
Otherwise being a little less agressive at the risk of an occasional
event latency would probably be best.

Anyway, back to catching up on e-mail.

--
Brian S. Julin





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On Tue, Jul 16, 2002 at 10:22:55AM -0700, Randolph Chung wrote:
>         __u32   tcpdiag_cookie[2]; 
> #define TCPDIAG_NOCOOKIE (~0U)
> };
> 
> the code goes on to do:
>         *((struct sock **)&r->id.tcpdiag_cookie) = sk;
> and
>             sk != *((struct sock **)&req->id.tcpdiag_cookie[0]))

This is absolutely awful.

> the "vomit grade hack" alan mentioned in another post is that in our
> tree, we have:
> 
> struct tcpdiag_sockid
> {
>         __u16   tcpdiag_sport;
>         __u16   tcpdiag_dport;
>         __u32   tcpdiag_src[4];
>         __u32   tcpdiag_dst[4];
>         __u32   tcpdiag_if;
> #if defined (__hppa__) && defined (__LP64__)
>         char * parisc_hack_to_align_tcpdiag_cookie;
> #endif
>         __u32   tcpdiag_cookie[2];

An only marginally better fix is

	__u32 tcpdiag_cookie[2] __attribute__((aligned(sizeof(void*))));

Note that this should be unconditional so that the other
64-bit ports don't take an alignment trap here too.

A much nicer fix would be to, gasp, use a union.



r~


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> > why is the offset of tcpdiag_cookie[0] 44 and not 40?
> 
> 0	tcpdiag_sport
> 2	tcpdiag_dport
> 4	tcpdiag_src
> 20	tcpdiag_dst
> 36	tcpdiag_if
> 40	tcpdiag_cookie
> 
> hmm.. worth checking that dport is at offset 2, not offset 4?

oic, it's embedded inside another structure:

struct tcpdiagmsg
{
        __u8    tcpdiag_family;
        __u8    tcpdiag_state;
        __u8    tcpdiag_timer;
        __u8    tcpdiag_retrans;

        struct tcpdiag_sockid id;

        __u32   tcpdiag_expires;
        __u32   tcpdiag_rqueue;
        __u32   tcpdiag_wqueue;
        __u32   tcpdiag_uid;
        __u32   tcpdiag_inode;
};

that's why it's 44...

randolph


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Subject: Re: [parisc-linux] 2.4.19-rc1-ac6 Merge pa55: #error ...?
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Hi Alan,

I try to build your 2.4.19-rc1-ac6 on my parisc-linux box but I got early
following error messages:

/usr/src/kernel-source-2.4.19-rc1-ac6-20020717/include/asm/system.h:55:2: #error
andre hedrick screwed this up please help unscrew in order to clean up

in the code there is this comment:

/*
 * __save_and_sti(x) == __save_flags(x); ide__sti();
 *                      __save_flags(x); __sti();
 *
 */

What does it mean? (I do not find any where else some ide__sti?)
May I try to define this function (__save_and_sti) as for other arch (but alpha)?

Thanks in advance for advice,
    Joel


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On Wed, Jul 17, 2002 at 03:38:24PM +0200, joel.soete@freebel.net wrote:
> Hi Alan,
> 
> I try to build your 2.4.19-rc1-ac6 on my parisc-linux box but I got early
> following error messages:

Joel, the -ac series will NOT contain all the changes necessary to build
on PA.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] 2.4.19-rc1-ac6 Merge pa55: #error ...?
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Quoting Matthew Wilcox <willy@debian.org>:

> On Wed, Jul 17, 2002 at 03:38:24PM +0200, joel.soete@freebel.net wrote:
> > Hi Alan,
> > 
> > I try to build your 2.4.19-rc1-ac6 on my parisc-linux box but I got
> early
> > following error messages:
> 
> Joel, the -ac series will NOT contain all the changes necessary to
> build
> on PA.
> 

Ha ... Ok.
In mean time is somebody is interested by my merge 2.4.19-rc1 pa55?
It is not perfect but it works on my b2000 (from pre5 pa14) so it should be good
starting point? (about 500k compressed by bzip2)

Joel



-------------------------------------------------
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On Wed, 2002-07-17 at 14:45, Matthew Wilcox wrote:
> On Wed, Jul 17, 2002 at 03:38:24PM +0200, joel.soete@freebel.net wrote:
> > Hi Alan,
> > 
> > I try to build your 2.4.19-rc1-ac6 on my parisc-linux box but I got early
> > following error messages:
> 
> Joel, the -ac series will NOT contain all the changes necessary to build
> on PA.
 
Yet 8)


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Subject: Re: [parisc-linux] 2.4.19-rc1-ac6 Merge pa55: #error ...?
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On Wed, 2002-07-17 at 14:38, joel.soete@freebel.net wrote:
> Hi Alan,
> 
> I try to build your 2.4.19-rc1-ac6 on my parisc-linux box but I got early
> following error messages:
> 
> /usr/src/kernel-source-2.4.19-rc1-ac6-20020717/include/asm/system.h:55:2: #error
> andre hedrick screwed this up please help unscrew in order to clean up

Deleted that chunk. It shouldnt be needed any more. Thats one I missed



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Subject: Re: [parisc-linux] 2.4.19-rc1-ac6 Merge pa55: #error ...?
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> In mean time is somebody is interested by my merge 2.4.19-rc1 pa55?
> It is not perfect but it works on my b2000 (from pre5 pa14) so it should be good
> starting point? (about 500k compressed by bzip2)

As I understand it, here's the plan -- others pls feel free to comment:

- to get pa stuff to work will require a number of arch-indep changes;
  these are not likely to make it into 2.4.19
- ergo, the earliest pa will work with upstream kernels is in the 2.4.20
  series
- in order to avoid doing the merging work twice (once now to acX, and
  then again to 2.4.20) we are going to hold off on trying to merge the
  rest upstream until 2.4.20 is out.....

willy made a good point that as much as possible we don't want upstream
pa bits to be newer than what we have in cvs, otherwise merging 
will be much more difficult later on.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Wed, Jul 17, 2002 at 04:20:15PM +0100, Alan Cox wrote:
> On Wed, 2002-07-17 at 14:45, Matthew Wilcox wrote:
> > Joel, the -ac series will NOT contain all the changes necessary to build
> > on PA.
>  
> Yet 8)

You told me you'd never accept the LOFF_T hacks i made to readv/writev ;-)

-- 
Revolutions do not require corporate support.


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On Wed, 2002-07-17 at 15:47, Matthew Wilcox wrote:
> On Wed, Jul 17, 2002 at 04:20:15PM +0100, Alan Cox wrote:
> > On Wed, 2002-07-17 at 14:45, Matthew Wilcox wrote:
> > > Joel, the -ac series will NOT contain all the changes necessary to build
> > > on PA.
> >  
> > Yet 8)
> 
> You told me you'd never accept the LOFF_T hacks i made to readv/writev ;-)

Indeed. I'd rather you stuck parisc_readv/writev in and those did the
magic stack rejig. 

Alan



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Subject: Re: [parisc-linux] 2.4.19-rc1-ac6 Merge pa55: #error ...?
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On Wed, 2002-07-17 at 15:29, Randolph Chung wrote:
> willy made a good point that as much as possible we don't want upstream
> pa bits to be newer than what we have in cvs, otherwise merging 
> will be much more difficult later on.

Marcelo merged a load of mips bits for 2.4.19rc2, he may be willing to
take a sort of "toilet flush" of arch/parisc and include/asm-parisc to
get the diff size down while knowing it touches no code that can
actually do harm.

I'll ask



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Subject: Re: [parisc-linux] 2.4.19-rc1-ac6 Merge pa55: #error ...?
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> Marcelo merged a load of mips bits for 2.4.19rc2, he may be willing to
> take a sort of "toilet flush" of arch/parisc and include/asm-parisc to
> get the diff size down while knowing it touches no code that can
> actually do harm.

Good to know. Incidentally I noticed the asm/pg{alloc,table}.h in your
tree is quite different from what we have in parisc cvs, and doesn't 
really compile. Any particular reasons?

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] Toolchain testing.
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Parisc,

Started testing toolchain builds using some of the new 
scripts I'm building for 'cross-check' ... right off the
bat, the first toolchain test permuation doesn't work :)

Toolchain Test 1:

Crossing from hppa -> hppa64

Using: 

Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0.4/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-long-long --enable-nls --without-included-gettext --disable-checking --enable-threads=posix --with-cpp-install-dir=bin --enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.0.4

GNU ld version 2.12.90.0.1 20020307 Debian/GNU Linux
Supported emulations:
    hppalinux
    hppa64linux

Uses debianized binutils/gcc/glibc from 'testing' for HPPA.

binutils - binutils-2.12.90.0.1
gcc - gcc-3.0-3.0.4ds3
glibc - glibc_2.2.5-7

Binutils builds/installs ok.

GNU ld version 2.12.90.0.1 20020307 Debian/GNU Linux
  Supported emulations:
     hppa64linux

Unfortunately gcc dies while compiling gengenrtl.c ... looks
like something didn't get #define'd properly.

Attached is the build.log (and -E). If anyone has any idea why it
croaks, and what might be missing? I've been scratching my
head most of the evening... :}

c.
---

Note:
I have modified the control files for all three pieces of
the toolchain. This was done with extreme care. The three
pieces of the toolchain now allow for much finer-grained
compile time options that can be eventually set by 
dpkg-buildpackage (or a magical dpkg-compile... or an 
enhanced dpkg-architecture ... or whatever)


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> 
> Note:
> I have modified the control files for all three pieces of
> the toolchain. This was done with extreme care. The three
> pieces of the toolchain now allow for much finer-grained
> compile time options that can be eventually set by 
> dpkg-buildpackage (or a magical dpkg-compile... or an 
> enhanced dpkg-architecture ... or whatever)
> 

Another note, I have looked at dpkg-cross.

c.



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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] Re: gcc-3.[02] alignment problem
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> preprocessed source attached.

really attached this time <sigh>

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] 2.4.19-rc1-ac6 Merge pa55: #error ...?
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On Wed, 2002-07-17 at 16:03, Randolph Chung wrote:
> > Marcelo merged a load of mips bits for 2.4.19rc2, he may be willing to
> > take a sort of "toilet flush" of arch/parisc and include/asm-parisc to
> > get the diff size down while knowing it touches no code that can
> > actually do harm.
> 
> Good to know. Incidentally I noticed the asm/pg{alloc,table}.h in your
> tree is quite different from what we have in parisc cvs, and doesn't 
> really compile. Any particular reasons?

Thats still on my pending list to look at harder. 



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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.19-rc1-ac6 Merge pa55: #error ...?
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On Wed, Jul 17, 2002 at 06:01:51PM +0100, Alan Cox wrote:
> On Wed, 2002-07-17 at 16:03, Randolph Chung wrote:
> > Good to know. Incidentally I noticed the asm/pg{alloc,table}.h in your
> > tree is quite different from what we have in parisc cvs, and doesn't 
> > really compile. Any particular reasons?
> 
> Thats still on my pending list to look at harder. 

iirc this was what broke me when trying to merge to marcelo before.
someone deleted a line that we'd already deleted or something...

-- 
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Subject: Re: [parisc-linux] 2.4.19-rc1-ac6 Merge pa55: #error ...?
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On Wed, Jul 17, 2002 at 06:08:59PM +0200, joel.soete@freebel.net wrote:
> Quoting Matthew Wilcox <willy@debian.org>:
> > iirc this was what broke me when trying to merge to marcelo before.
> > someone deleted a line that we'd already deleted or something...
> 
> IIRC too
> 
> Remember:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2002-January/015290.html

um, this is to do with O(1) scheduler.  has nothing to do with
asm-parisc/pg{alloc,table}.h

-- 
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Subject: Re: [parisc-linux] 2.4.19-rc1-ac6 Merge pa55: #error ...?
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Quoting Matthew Wilcox <willy@debian.org>:

> On Wed, Jul 17, 2002 at 06:01:51PM +0100, Alan Cox wrote:
> > On Wed, 2002-07-17 at 16:03, Randolph Chung wrote:
> > > Good to know. Incidentally I noticed the asm/pg{alloc,table}.h in
> your
> > > tree is quite different from what we have in parisc cvs, and doesn't
> 
> > > really compile. Any particular reasons?
> > 
> > Thats still on my pending list to look at harder. 
> 
> iirc this was what broke me when trying to merge to marcelo before.
> someone deleted a line that we'd already deleted or something...
> 

IIRC too

Remember:
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-January/015290.html

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Subject: gcc-3.2 Ok gcc-3.1.1 Ko (was Re: [parisc-linux] gcc-3.2 bootstrap?)
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Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> > > Your problem appears to be with arch/parisc/kernel/parisc_ksyms.c.
> > > It imports the symbol.
> > > 
> > 
> > Simply comment it out will broken to compile with gcc-3.0.x, I
> suppose?
> 
> I suspect that you can just delete
> 
>   extern void $$mulU(void);
> 
> and
> 
>   #ifndef __LP64__
>   EXPORT_SYMBOL_NOVERS($$mulU);
>   #endif
> 
> I didn't see any assembly usage of this function in linux and I don't
> believe gcc uses it (even 3.0.x), so probably the lines can just be
> deleted.
> 

To summarise:
This clean should be applied without problem (test with gcc-3.2 and gcc-3.0.4)

This allow me to produce an operational kernel with gcc-3.2 (bootstrap an x);
telnet, ftp and ssh connection OK

But with gcc-3.1.1 still crashing at the first remote connection?

I will try a more recent CVS update.

Joel




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> But with gcc-3.1.1 still crashing at the first remote connection?

If 64-bit, this could be the tcp header alignment problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:

> > But with gcc-3.1.1 still crashing at the first remote connection?
> 
> If 64-bit, this could be the tcp header alignment problem.
> 
Sorry it is on a 712 (32-bit)

Joel 


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On Wed, Jul 17, 2002 at 07:09:54PM +0200, Joel Soete wrote:
> To summarise:
> This clean should be applied without problem (test with gcc-3.2 and gcc-3.0.4)
> 
> This allow me to produce an operational kernel with gcc-3.2 (bootstrap an x);
> telnet, ftp and ssh connection OK

but did you test modules?

-- 
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Hi,

I merge my 19-rc1 stuff with 19-rc2 and just enounter a conflict in
include/linux/personality.h:

enum{
...
+        PER_OSF4= 0x000f,

unfortunaltely the same as our:
         PER_HPUX= 0x000f,

What should I do?

Joel



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Subject: [parisc-linux] Kernel panic, ccio-dma.c, C110
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Hi all,

I am experiancing repeatable kernel panics on my C110. I upgraded the
kernel to 2.4.18-pa53, but without change. ;-(

Famous last words are:

Kernel panic: ccio-dma.c ccio_alloc_range() I/O MMU is out of mapping
resources.
In interrupt handler - not syncing

After that - black screen, last words and silence. On one occasion, it
spat out a bit more before it died. Sort of SCSI-Bus trouble in the
farmost sense. Could not repeat that. Harddrive is an old HP2490A, that
came foating around. I did not want to erase the hpux on the other
drives.
All I need to do to crash the machine is writing big files (i.e. kernel
tarballs) to the drive (either copying or from ftp). What makes me
wonder is that I was able to copy some 300 MB *.wav file to it some
weeks back.


Juergen

-- 
===========================================     __   _
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Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
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Quoting Matthew Wilcox <willy@debian.org>:

> On Wed, Jul 17, 2002 at 07:09:54PM +0200, Joel Soete wrote:
> > To summarise:
> > This clean should be applied without problem (test with gcc-3.2 and
> gcc-3.0.4)
> > 
> > This allow me to produce an operational kernel with gcc-3.2 (bootstrap
> an x);
> > telnet, ftp and ssh connection OK
> 
> but did you test modules?
> 
They were all together build with 'make oldconfig' after a distclean, so yes
with modules support. A monolithic test should be interesting? (I already do
this test for gcc-3.1 not 3.1.1 it does not bring success)

Joel



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Quoting Juergen Braukmann <juergen.braukmann@ruhr-west.de>:


> All I need to do to crash the machine is writing big files (i.e. kernel
> tarballs) to the drive (either copying or from ftp). What makes me
> wonder is that I was able to copy some 300 MB *.wav file to it some
> weeks back.
> 
Do you also check scsi terminator (palinux is more sensible than hpux)?

What says dd if=/dev/sdi of=/dev/null

If you have an hp diagnostics CD boot with it to analyse your disk?

Joel




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On Wed, Jul 17, 2002 at 07:44:04PM +0200, joel.soete@freebel.net wrote:
> Quoting Matthew Wilcox <willy@debian.org>:
> > but did you test modules?
> They were all together build with 'make oldconfig' after a distclean, so yes
> with modules support. A monolithic test should be interesting? (I already do
> this test for gcc-3.1 not 3.1.1 it does not bring success)

build is not sufficient; the EXPORT_MODULE stuff can only be tested by
loading modules at runtime.

-- 
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Subject: Re: [parisc-linux] Kernel panic, ccio-dma.c, C110
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Juergen Braukmann wrote:
> Kernel panic: ccio-dma.c ccio_alloc_range() I/O MMU is out of mapping
> resources.

Sorry Joel, this has nothing to do with SCSI termination.

Juergen,
In arch/parisc/kernel/ccio-dma.c, change ccio_mem_ratio from 4 to 8 or 16.
For more explanation, search for "Determine IOVA Space size" in ccio-dma.c.

grant


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On Wed, 2002-07-17 at 18:37, joel.soete@freebel.net wrote:
> Hi,
> 
> I merge my 19-rc1 stuff with 19-rc2 and just enounter a conflict in
> include/linux/personality.h:
> 
> enum{
> ...
> +        PER_OSF4= 0x000f,
> 
> unfortunaltely the same as our:
>          PER_HPUX= 0x000f,
> 
> What should I do?

I've asked Marcelo to use 0x0010 for OSF4 (its just added and not an
established constant)



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Grant,

Is there a way to make this more intelligent now that we have an I/O
tree?  Maybe driverfs in 2.5.X will help us figure out how to make it
smarter ... it kinda sucks to recompile the kernel because you do not
have enough memory for our default setting of 4.

Seems like we could develop a huristic based on devices below the
iommus.

Just a thought..

- Ryan


On Wed, 2002-07-17 at 12:14, Grant Grundler wrote:
> Juergen Braukmann wrote:
> > Kernel panic: ccio-dma.c ccio_alloc_range() I/O MMU is out of mapping
> > resources.
> 
> Sorry Joel, this has nothing to do with SCSI termination.
> 
> Juergen,
> In arch/parisc/kernel/ccio-dma.c, change ccio_mem_ratio from 4 to 8 or 16.
> For more explanation, search for "Determine IOVA Space size" in ccio-dma.c.
> 
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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Quoting Grant Grundler <grundler@dsl2.external.hp.com>:

> Juergen Braukmann wrote:
> > Kernel panic: ccio-dma.c ccio_alloc_range() I/O MMU is out of mapping
> > resources.
> 
> Sorry Joel, this has nothing to do with SCSI termination.
> 
Do not be, I would just like to be sure that there is no HW problem as I
encounter with my b2k.

Thanks for info,
    Joel
 


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Quoting Matthew Wilcox <willy@debian.org>:

> On Wed, Jul 17, 2002 at 07:44:04PM +0200, joel.soete@freebel.net wrote:
> > Quoting Matthew Wilcox <willy@debian.org>:
> > > but did you test modules?
> > They were all together build with 'make oldconfig' after a distclean,
> so yes
> > with modules support. A monolithic test should be interesting? (I
> already do
> > this test for gcc-3.1 not 3.1.1 it does not bring success)
> 
> build is not sufficient; the EXPORT_MODULE stuff can only be tested by
> loading modules at runtime.


Is it just to test to load a module? (no relation with TCP problem?)

Joel



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Quoting Alan Cox <alan@lxorguk.ukuu.org.uk>:

> On Wed, 2002-07-17 at 18:37, joel.soete@freebel.net wrote:
> > Hi,
> > 
> > I merge my 19-rc1 stuff with 19-rc2 and just enounter a conflict in
> > include/linux/personality.h:
> > 
> > enum{
> > ...
> > +        PER_OSF4= 0x000f,
> > 
> > unfortunaltely the same as our:
> >          PER_HPUX= 0x000f,
> > 
> > What should I do?
> 
> I've asked Marcelo to use 0x0010 for OSF4 (its just added and not an
> established constant)
> 

And all my stuf compiles and run well at least on my b2k and 712.
Compile with gcc-3.0.4 and for gcc-3.2 I do have to apply following small patch:

--- aic7xxx_osm.c.orig	Thu Jul 18 15:22:10 2002
+++ aic7xxx_osm.c	Thu Jul 18 14:08:02 2002
@@ -417,25 +417,25 @@
 MODULE_LICENSE("Dual BSD/GPL");
 #endif
 MODULE_PARM(aic7xxx, "s");
-MODULE_PARM_DESC(aic7xxx, "period delimited, options string.
-
verbose
		Enable verbose/diagnostic logging
-
no_probe
	Disable EISA/VLB controller probing
-
no_reset
	Supress initial bus resets
-
extended
	Enable extended geometry on all controllers
-
periodic_otag
	Send an ordered tagged transaction periodically
-
			to prevent tag starvation.  This may be
-
			required by some older disk drives/RAID arrays. 
-
reverse_scan
	Sort PCI devices highest Bus/Slot to lowest
-
tag_info:<tag_str>
Set per-target tag depth
-
seltime:<int>
	Selection Timeout(0/256ms,1/128ms,2/64ms,3/32ms)
-
-
Sample /etc/modules.conf line:
-
	Enable verbose logging
-
	Disable EISA/VLB probing
-
	Set tag depth on Controller 2/Target 2 to 10 tags
-
	Shorten the selection timeout to 128ms from its default of 256
-
-
options aic7xxx='\"verbose.no_probe.tag_info:{{}.{}.{..10}}.seltime:1\"'
+MODULE_PARM_DESC(aic7xxx, "period delimited, options string.\n\
+
verbose
		Enable verbose/diagnostic logging\n\
+
no_probe
	Disable EISA/VLB controller probing\n\
+
no_reset
	Supress initial bus resets\n\
+
extended
	Enable extended geometry on all controllers\n\
+
periodic_otag
	Send an ordered tagged transaction periodically\n\
+
			to prevent tag starvation.  This may be\n\
+
			required by some older disk drives/RAID arrays. \n\
+
reverse_scan
	Sort PCI devices highest Bus/Slot to lowest\n\
+
tag_info:<tag_str>
Set per-target tag depth\n\
+
seltime:<int>
	Selection Timeout(0/256ms,1/128ms,2/64ms,3/32ms)\n\
+\n\
+
Sample /etc/modules.conf line:\n\
+
	Enable verbose logging\n\
+
	Disable EISA/VLB probing\n\
+
	Set tag depth on Controller 2/Target 2 to 10 tags\n\
+
	Shorten the selection timeout to 128ms from its default of 256\n\
+\n\
+
options aic7xxx='\"verbose.no_probe.tag_info:{{}.{}.{..10}}.seltime:1\"'\n\
 ");
 #endif
 
Many thanks again,
    Joel


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Quoting joel.soete@freebel.net:

> Quoting Matthew Wilcox <willy@debian.org>:
> 
> > On Wed, Jul 17, 2002 at 07:44:04PM +0200, joel.soete@freebel.net
> wrote:
> > > Quoting Matthew Wilcox <willy@debian.org>:
> > > > but did you test modules?
> > > They were all together build with 'make oldconfig' after a
> distclean,
> > so yes
> > > with modules support. A monolithic test should be interesting? (I
> > already do
> > > this test for gcc-3.1 not 3.1.1 it does not bring success)
> > 
> > build is not sufficient; the EXPORT_MODULE stuff can only be tested
> by
> > loading modules at runtime.
> 
> 
> Is it just to test to load a module? (no relation with TCP problem?)
> 
> Joel
> 
Sorry for delay but I would like to re-compile some more modules. I just test
lvm-mod as well as nfs and nfsd. No problem: insmod, lsmod, rsmod works fine for
gcc-3.1.1 and for gcc-3.2. (do you know some problem with modules with those
release of gcc compiler?)

Joel



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Subject: Re: gcc-3.2 Ok gcc-3.1.1 Ko (was Re: [parisc-linux] gcc-3.2 bootstrap?)
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Quoting Joel Soete <joel.soete@freebel.net>:

> Quoting John David Anglin <dave@hiauly1.hia.nrc.ca>:
> 
> > > > Your problem appears to be with
> arch/parisc/kernel/parisc_ksyms.c.
> > > > It imports the symbol.
> > > > 
> > > 
> > > Simply comment it out will broken to compile with gcc-3.0.x, I
> > suppose?
> > 
> > I suspect that you can just delete
> > 
> >   extern void $$mulU(void);
> > 
> > and
> > 
> >   #ifndef __LP64__
> >   EXPORT_SYMBOL_NOVERS($$mulU);
> >   #endif
> > 
> > I didn't see any assembly usage of this function in linux and I don't
> > believe gcc uses it (even 3.0.x), so probably the lines can just be
> > deleted.
> > 
> 
> To summarise:
> This clean should be applied without problem (test with gcc-3.2 and
> gcc-3.0.4)
> 
> This allow me to produce an operational kernel with gcc-3.2 (bootstrap
> an x);
> telnet, ftp and ssh connection OK
> 
> But with gcc-3.1.1 still crashing at the first remote connection?
> 
> I will try a more recent CVS update.

Same problem with the last CVS update today (20020718)

> 
> Joel
> 

PS: A new baby is ongoing to be born ? (2.5 :) or :( for 2.4)
I better understand on which important job Paul was working :)

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Subject: Re: [parisc-linux] Kernel panic, ccio-dma.c, C110
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Grant Grundler schrieb:
> 
> Juergen Braukmann wrote:
> > Kernel panic: ccio-dma.c ccio_alloc_range() I/O MMU is out of mapping
> > resources.
> 
> Sorry Joel, this has nothing to do with SCSI termination.
> 
> Juergen,
> In arch/parisc/kernel/ccio-dma.c, change ccio_mem_ratio from 4 to 8 or 16.
> For more explanation, search for "Determine IOVA Space size" in ccio-dma.c.
> 
Hi All,

when I read this first I thought "easy" (having in mind cat-ting "4"
somewhere into some file in the proc tree), but this is a kernel change
and recompile. I do not have the sorces on the machine and do not realy
know how to crosscompile on my i686 box. Trying to ftp the kernel source
over will panic the kernel.
I looked into the kernel Makefile, but am not sure what changes to do
there. Is there some info on that? (I'll look up the website for
x-compilation). All this seems to be over my intelectual limits. ;-(
Is there a chance to change that default value in the precompiled
kernels??

Juergen

-- 
===========================================     __   _
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Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
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Grant Grundler schrieb:
> 
> Juergen Braukmann wrote:
> > Kernel panic: ccio-dma.c ccio_alloc_range() I/O MMU is out of mapping
> > resources.
> 
> Sorry Joel, this has nothing to do with SCSI termination.
> 
> Juergen,
> In arch/parisc/kernel/ccio-dma.c, change ccio_mem_ratio from 4 to 8 or 16.
> For more explanation, search for "Determine IOVA Space size" in ccio-dma.c.
> 
> grant

Grant and all,

forget my earlier mourning about crosscompiling etc. I found the
x-compiler, insttalled it nicked the config file from the stock kernels,
edited the Makefile (all with a few guesses) and compiled a kernel.
"file" tells me it's pa-risc, so x-compiling seemed to work.
Unfortunately, I forgot to change that value in ccio-dma.c. ;-(

So stop working for my behalf, didn't think it would be that easy. If
there are more tears, I'll shout.

Juergen


-- 
===========================================     __   _
Juergen Braukmann juergen.braukmann@gmx.de| -o)/ /  (_)__  __ ____  __
Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
===========================================_\_v __/_/_//_/\_,_/ /_/\_\


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> In file included from /home/tausq/src/gcc-3.2/gcc/unwind-dw2.c:1210:
> /home/tausq/src/gcc-3.2/gcc/unwind.inc: In function `_Unwind_RaiseException':
> /home/tausq/src/gcc-3.2/gcc/unwind.inc:132: error: Attempt to delete prologue/epilogue insn:
> (insn 337 336 338 14 (nil) (set (reg:DI 7 %r7)
>         (mem:DI (plus:DI (reg/f:DI 30 %r30)
>                 (const_int -296 [0xfffffffffffffed8])) [0 S8 A64])) -1 (nil)
>     (nil))
> /home/tausq/src/gcc-3.2/gcc/unwind.inc:132: internal compiler error: Internal compiler error in propagate_one_insn, at flow.c:1637

Fixed:
<http://gcc.gnu.org/ml/gcc-patches/2002-07/msg00963.html>.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] Re: How to update firmware on c180 using a cd rom
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Thaddeus A Wilson writes...

> i have a c180 with the hrc-24 graphics card and would like to install parisc 
> linux on it.  i am having some troubles and thought that an update in the 
> firmware from 4.3 to 6.2 might help matters.  i am interested in converting 
> the lifimage to cd and booting from it.
>  
> maybe i could unpack the lifimage to a directory and use mkisofs and cdrecord
> to make a bootable cd from iso image?

Just burn it directly to a cd with cdrecord, no need for mkisofs.

Your other options are,
 - netboot it using bootp/dhcp and tftp
 - dd it to a scsi device like a hard-drive or dat tape, and boot that

-- 
Matt Taggart
taggart@fc.hp.com




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Subject: [parisc-linux] CVS Question?
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Hi all, 

In parisc-linux cvs, with cvs is possible to co and update only general and hppa
specific sources (avoiding other arch: arm, ppc, ...)?

Thanks for info,
   Joel


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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Kernel panic, ccio-dma.c, C110
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Ryan Bradetich wrote:
> Is there a way to make this more intelligent now that we have an I/O tree?

Probably. I'm looking at info given by "lspci -n".

o generalize characteristics of each PCI device class/subclass and
  assign them a score.
o sum scores by recursively walking all the PCI busses below an IOMMU.
o translate the total score into how much memory could be mapped at
  a time (ie size of IO pdir)
o make sure IO Pdir size can't map more than 50% or 75% of Host
  physical memory.

> Maybe driverfs in 2.5.X will help us figure out how to make it
> smarter ... it kinda sucks to recompile the kernel because you do not
> have enough memory for our default setting of 4.

driver fs would probably help since we could then do it the
same way for all bus types.

But in 2.5, I'd rather see all the drivers indicate "Max DMA Mappings"
in some static data since that's what is really driving
the IO Pdir size.

> Seems like we could develop a huristic based on devices below the
> iommus.

yup. Will need tweaks too though...just satisfies more people.

grant


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joel.soete@freebel.net said:
> Hi all, 
> 
> In parisc-linux cvs, with cvs is possible to co and update only general and 
> hppa specific sources (avoiding other arch: arm, ppc, ...)?
> 
> Thanks for info,
>    Joel

Unfortunately the .cvsignore files are for 'local ignorance' and you
can't use the cvs -I (ignore) flag with checkout.  You can with import
and update though, which is good, and at least something.

Two possible courses of action for you that spring to mind:

  1) (i)   check out the entire tree
     (ii)  delete the directories you don't want
     (iii) only perform future cvs updates with '-P', removing '-d' from
           your .cvsrc or just skipping .cvsrc for this module:
	     cvs -f up -P .

  2) (i)   check out the entire tree
     (ii)  locate all the directories you don't want, but don't delete
           them (or just leave the empty directories in place)
     (iii) put their paths in a file e.g. ~/.cvs_ignores
     (iv)  perform future cvs updates with a commend like this:
             cvs up -dP $(for dir in $(cat ~/.cvs_ignores); do echo -n \
	     "-I $dir "; done) .

I use '.' because I assume you're already in the module directory when
you do the cvs update - that's what I do anyway.

Please note that I haven't tried either of these.  I'm pretty confident
that (1) will work as you want it to, but (2) may not.

HTH

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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Subject: [parisc-linux] Cdrecord and parisc64 kernel
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Hi,

I just installed Debian/hppa on my HP Visualize C200.

After I've compiled a kernel for 64bit and tried to use cdrecord it crashed
the whole machine. It was not availible via network and din't respond any more
to keyboard requests. (btw. what key is SysRq?  Alt-Printscreen doesn't work)

The problem is, I saw noting, not on the console, and not in the syslog.

bye

Stefan

-- 
        http://www.dreamind.de/
Oroborus and Debian GNU/Linux Developer.


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On Fri, Jul 19, 2002 at 01:49:20PM +0200, Stefan Pfetzing wrote:
> I just installed Debian/hppa on my HP Visualize C200.
> After I've compiled a kernel for 64bit and tried to use cdrecord it crashed

from the FAQ:

14. Can I run a 64-bit kernel on my machine ?

The answer to this is generally determined by the firmware your machine
runs. Workstations up to and including the J2240 and C360 only have 32-bit
firmware. The normal 64-bit kernel will not run on these systems. The
A500 and L2000 server only have 64-bit firmware, and these machines must
run a 64-bit kernel. The C3000 and similar workstations have both 32-bit
and 64-bit firmware and can therefore run either kernel.

A more important question is : why do you want to run a 64-bit kernel ?
Since we do not yet support 64-bit userspace, there is no advantage
to be gained running a 64-bit kernel on a machine with less than 3.5GB
of memory.

For those who do want to test 64-bit kernels on older machines, there is a
special configuration option `32-bit PDC' which will allow a 64-bit kernel
to work with 32-bit firmware. We cannot enable this option by default
as the resulting kernel will not work on machines with 64-bit firmware.


-- 
Revolutions do not require corporate support.


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Hi Grant and all,

still more tears. I compiled and replaced the kernel, using 2.4.18pa55.
I used the setting of ccio_mem_ratio=16, but still my kernel panics with 

Kernel panic: ccio-dma.c ccio_alloc_range() I/O MMU is out of mapping
resources.
In interrupt handler - not syncing

would there be more chance with the ccio_mem_ratio setting of 8? Is
there a way to use more than one Kernel alternativly and select it at
boottime with palo? Is there an example palo.conf somewhere?

I will shut down X next and try again. I managed to ftp a large file
once and all I did after that was getting X to run.

Juergen

-- 
===========================================     __   _
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Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
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From: Stefan Pfetzing <dreamind@dreamind.de>
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* Matthew Wilcox <willy@debian.org> [020719 14:03]:
> On Fri, Jul 19, 2002 at 01:49:20PM +0200, Stefan Pfetzing wrote:
> > I just installed Debian/hppa on my HP Visualize C200.
> > After I've compiled a kernel for 64bit and tried to use cdrecord it crashed
> 
Well I've *read* the FAQ.

I've also activated that option, and YES I know it has no advantage.
I simply wanted to test if it works and what works.

So i tried to write a cd under such a kernel and it didn't work. (and I
suggest on bigger machines which need a 64bit kernel it doesnt work too
maybe?).


bye

Stefan

-- 
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On Fri, Jul 19, 2002 at 04:53:02PM -0600, Richard Hirst wrote:
> CVSROOT:	/var/cvs
> Module name:	linux
> Changes by:	rhirst	02/07/19 16:53:02
> 
> Modified files:
> 	.              : Makefile 
> 	drivers/scsi   : Config.in 
> 
> Log message:
> Fix scsi config options so Zalon can be used without PCI

This is a mess, btw.  Basic problem is Zalon, ncr53c8xx, and sym53c8xx
want to share a bunch of config options.  But zalon can run without
pci, the other two can't.  ncr and sym are not allowed if sym_2 is
compiled in, but zalon is, etc, etc.  Cleaner solutions are welcomed!

Richard


Index: drivers/scsi/Config.in
===================================================================
RCS file: /var/cvs/linux/drivers/scsi/Config.in,v
retrieving revision 1.18
retrieving revision 1.19
diff -u -r1.18 -r1.19
--- drivers/scsi/Config.in	4 Jun 2002 18:53:29 -0000	1.18
+++ drivers/scsi/Config.in	19 Jul 2002 22:53:02 -0000	1.19
@@ -147,27 +147,46 @@
       bool '  use normal IO' CONFIG_SCSI_SYM53C8XX_IOMAPPED
    fi
 fi
+define_bool CONFIG_ASK_ZALON n
+define_bool CONFIG_ASK_NCR53C8XX n
+define_bool CONFIG_ASK_SYM53C8XX n
+if [ "$CONFIG_PARISC" = "y" ]; then
+   dep_tristate 'Zalon SCSI support' CONFIG_SCSI_ZALON $CONFIG_GSC $CONFIG_SCSI
+   if [ "$CONFIG_SCSI_ZALON" != "n" ]; then
+      define_bool CONFIG_ASK_ZALON y
+   fi
+else
+  if [ "$CONFIG_PCI" = "y" -a "$CONFIG_SCSI_SYM53C8XX_2" != "y" ]; then
+     dep_tristate 'NCR53C8XX SCSI support' CONFIG_SCSI_NCR53C8XX $CONFIG_SCSI
+     if [ "$CONFIG_SCSI_NCR53C8XX" != "n" ]; then
+        define_bool CONFIG_ASK_NCR53C8XX y
+     fi
+  fi
+fi
 if [ "$CONFIG_PCI" = "y" -a "$CONFIG_SCSI_SYM53C8XX_2" != "y" ]; then
-   dep_tristate 'NCR53C8XX SCSI support' CONFIG_SCSI_NCR53C8XX $CONFIG_SCSI
    dep_tristate 'SYM53C8XX SCSI support' CONFIG_SCSI_SYM53C8XX $CONFIG_SCSI
-   if [ "$CONFIG_PARISC" = "y" ]; then
-      dep_tristate 'Zalon SCSI support' CONFIG_SCSI_ZALON $CONFIG_GSC $CONFIG_SCSI
+   if [ "$CONFIG_SCSI_SYM53C8XX" != "n" ]; then
+      define_bool CONFIG_ASK_SYM53C8XX y
    fi
-   if [ "$CONFIG_SCSI_NCR53C8XX" != "n" -o "$CONFIG_SCSI_ZALON" != "n" -o "$CONFIG_SCSI_SYM53C8XX" != "n" ]; then
-      int  '  default tagged command queue depth' CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS 8
-      int  '  maximum number of queued commands' CONFIG_SCSI_NCR53C8XX_MAX_TAGS 32
-      int  '  synchronous transfers frequency in MHz' CONFIG_SCSI_NCR53C8XX_SYNC 20
-      bool '  enable profiling' CONFIG_SCSI_NCR53C8XX_PROFILE
+fi
+if [ "$CONFIG_ASK_ZALON" = "y" -o "$CONFIG_ASK_NCR53C8XX" = "y" -o "$CONFIG_ASK_SYM53C8XX" = "y" ]; then
+   int  '  default tagged command queue depth' CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS 8
+   int  '  maximum number of queued commands' CONFIG_SCSI_NCR53C8XX_MAX_TAGS 32
+   int  '  synchronous transfers frequency in MHz' CONFIG_SCSI_NCR53C8XX_SYNC 20
+   bool '  enable profiling' CONFIG_SCSI_NCR53C8XX_PROFILE
+   if [ "$CONFIG_ASK_ZALON" = "y" ]; then
+      define_bool CONFIG_SCSI_NCR53C8XX_IOMAPPED n
+   else
       bool '  use normal IO' CONFIG_SCSI_NCR53C8XX_IOMAPPED
-      if [ "$CONFIG_SCSI_SYM53C8XX" != "n" ]; then
-	 bool '  include support for the NCR PQS/PDS SCSI card' CONFIG_SCSI_NCR53C8XX_PQS_PDS
-      fi
-      if [ "$CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS" = "0" ]; then
-	 bool '  not allow targets to disconnect' CONFIG_SCSI_NCR53C8XX_NO_DISCONNECT
-      fi
-      if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
-	 bool '  assume boards are SYMBIOS compatible (EXPERIMENTAL)' CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT
-      fi
+   fi
+   if [ "$CONFIG_ASK_SYM53C8XX" = "y" ]; then
+      bool '  include support for the NCR PQS/PDS SCSI card' CONFIG_SCSI_NCR53C8XX_PQS_PDS
+   fi
+   if [ "$CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS" = "0" ]; then
+      bool '  not allow targets to disconnect' CONFIG_SCSI_NCR53C8XX_NO_DISCONNECT
+   fi
+   if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
+      bool '  assume boards are SYMBIOS compatible (EXPERIMENTAL)' CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT
    fi
 fi
 if [ "$CONFIG_MCA" = "y" ]; then


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Juergen,

How much memory does this system have?  Also what cards do you have in
which slot. (Please also specify PCI or GSC).

What this driver does is allocates a certian portion of memory at
startup time for a TLB mapping.  Adjusting the ccio_mem_ratio affects
how much memory is allocated at boot.  The U2/UTurn chip has 2 iommus,
and the different GSC/PCI slots fall under specific iommus.  If you
system does not have much memory, and the cards are positioned
approparately, we could turn off the iommu memory allocatation for the
second iommu (the /10 bus).

this is just a thought ... will see what we can do with your
configuration :)

Thanks,

-  Ryan


On Fri, 2002-07-19 at 10:08, Juergen Braukmann wrote:
> Hi Grant and all,
> 
> still more tears. I compiled and replaced the kernel, using 2.4.18pa55.
> I used the setting of ccio_mem_ratio=16, but still my kernel panics with 
> 
> Kernel panic: ccio-dma.c ccio_alloc_range() I/O MMU is out of mapping
> resources.
> In interrupt handler - not syncing
> 
> would there be more chance with the ccio_mem_ratio setting of 8? Is
> there a way to use more than one Kernel alternativly and select it at
> boottime with palo? Is there an example palo.conf somewhere?
> 
> I will shut down X next and try again. I managed to ftp a large file
> once and all I did after that was getting X to run.
> 
> Juergen
> 
> -- 
> ===========================================     __   _
> Juergen Braukmann juergen.braukmann@gmx.de| -o)/ /  (_)__  __ ____  __
> Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
> ===========================================_\_v __/_/_//_/\_,_/ /_/\_\
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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Ryan Bradetich schrieb:
> 
> Juergen,
> 
> How much memory does this system have?  Also what cards do you have in
> which slot. (Please also specify PCI or GSC).
> 
> What this driver does is allocates a certian portion of memory at
> startup time for a TLB mapping.  Adjusting the ccio_mem_ratio affects
> how much memory is allocated at boot.  The U2/UTurn chip has 2 iommus,
> and the different GSC/PCI slots fall under specific iommus.  If you
> system does not have much memory, and the cards are positioned
> approparately, we could turn off the iommu memory allocatation for the
> second iommu (the /10 bus).
> 
> this is just a thought ... will see what we can do with your
> configuration :)
> 
> Thanks,
> 
> -  Ryan
> 

Hello Ryan,

I dreaded that question. ;-) This is a rescue-workststion that would
have been dumped otherwise. I have only 64 MB RAM. There are two modules
32 MB each, straigt in front of the ventilator (it used to be more, but
they took some 128 MB off). Is there some relevant placing of the
modules? In total, there are 8 memory slots. Processor in front, it is
J1-J2-J3-J4, space J5-J6-J7-J8. My modules are placed in slot 6 and 8.
(If you look at them from the other side, they are numbered 0A, 2A, 0B,
2B, space 1A, 3A, 1B, 3B. I use slots 0A and 0B, that should be fine)
I've seen that memory prices are to expensive to buy some more, since
this box is more a toy. (US$ 250 for 256MB)
Speaking about card slots, I don't know what PSC slots are, so I rather
describe things in my box:
mainbord plugs into some uprigt thing were other cards can plug in. From
the other side another board with SCSI Controler, RTC, I/O-stuff and
audio plugs in. (the "cmos" battery is there and so are the other
connectors on the back).
On the "upright thing" are 4 slots, that look like ISA/EISA and have
another connector in line with the EISA slot about 2" apart. (Suppose
that is meant with PSC. Reminds me a bit to the extension slot that VLB
had, thogh it is a different connector)
But only 3 slots are EISA, the fourth is only the "extension".
Slot 3 carries the video/framebuffer card. In the above terms it's PSC.
Apart from two ventilarors and plenty of dust that describes the content
of my box. The SCSI bus connects to my HP2490A disc, I disconnected the
two Ultra (or whatever) SCSI drive with HP-UX.
CD-ROM is both antique double speed and external.

Juergen

-- 
===========================================     __   _
Juergen Braukmann juergen.braukmann@gmx.de| -o)/ /  (_)__  __ ____  __
Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
===========================================_\_v __/_/_//_/\_,_/ /_/\_\


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On Sat, 20 Jul 2002, Juergen Braukmann wrote:

[snip]

> I dreaded that question. ;-) This is a rescue-workststion that would
> have been dumped otherwise. I have only 64 MB RAM. There are two modules
> 32 MB each, straigt in front of the ventilator (it used to be more, but
> they took some 128 MB off). Is there some relevant placing of the
> modules? In total, there are 8 memory slots. Processor in front, it is
> J1-J2-J3-J4, space J5-J6-J7-J8. My modules are placed in slot 6 and 8.
> (If you look at them from the other side, they are numbered 0A, 2A, 0B,
> 2B, space 1A, 3A, 1B, 3B. I use slots 0A and 0B, that should be fine)

Yes - this is the correct placing for memory - these systems should always
use equal-sized pairs of memory which should be placed (largest first)
starting in the lowest numbered slots.

[snip]

> Apart from two ventilarors and plenty of dust that describes the content
> of my box. The SCSI bus connects to my HP2490A disc, I disconnected the
> two Ultra (or whatever) SCSI drive with HP-UX.

The internal disks are fast-wide differential & the external SCSI ports
are FW-diff & single-ended. I don't know the 2490A.

R.
PeteM



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I've done an initial merge of 2.4 asm-parisc to 2.5, I wont commit it in
case someone else is doing the same thing.  You can find a tarball at
ftp.p-l.o:src/asm-parisc-2.5.tgz

Basically, I looked at diffs bewteen 2.5.0 and 2.5.26, and between 2.5.26
and 2.5.26-pa0, then copied 2.4 over 2.5, then applied those diffs as I
thought appropriate.  Obviously still doesn't compile or anything, but
it should be a better.

I, or someone else, can apply that tarball if people agree.

Richard



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On Tue, Jul 09, 2002 at 10:56:01AM +0300, Stephan Trajkoff wrote:
> Hi,
> why I need to enable PCI/EISA to make available option zalon driver in 
> SCSI drivers?

You don't need to any more.

Richard



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Subject: Re: [parisc-linux] C110, kernel Panics, still more tears ;-(
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Juergen Braukmann wrote:
> Hi Grant and all,
> 
> still more tears. I compiled and replaced the kernel, using 2.4.18pa55.
> I used the setting of ccio_mem_ratio=16, but still my kernel panics with 
> Kernel panic: ccio-dma.c ccio_alloc_range() I/O MMU is out of mapping
> resources.
> In interrupt handler - not syncing

Sorry - my bad - I think I have it backwards.
Using a smaller value will result in more IOMMU resource.

> would there be more chance with the ccio_mem_ratio setting of 8?

Or 2 or 1 even.

> there a way to use more than one Kernel alternativly and select it at
> boottime with palo? Is there an example palo.conf somewhere?

Yes. Interrupt the boot process before palo is loaded and then
type "Y" to "Interact with IPL (Y/N/Q)?" question. You can then
specify which vmlinux to boot.

grant


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Juergen Braukmann wrote:
> > How much memory does this system have?  Also what cards do you have in
> > which slot. (Please also specify PCI or GSC).

> Speaking about card slots, I don't know what PSC slots are,

Me either. No such thing as PSC - only GSC or HSC (K-class).
The slots in the C200 can take either a GSC card or a PCI card.

grant


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Peter Mottram wrote:
> The internal disks are fast-wide differential & the external SCSI ports
> are FW-diff & single-ended. I don't know the 2490A.

C2490 is a 2GB FWD diff. About 6 years Old IIRC.
Odds are you need to update the firmware since it rolled every
3-4 monthes even after HP stopped producing that model. See
the parisc FAQ re platform firmwre and the same HP ftp sites
referenced in the FAQ have disk firmware too.

grant


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I just installed this version of bug-buddy:

puccini:~# dpkg -l bug-buddy
Desired=Unknown/Install/Remove/Purge/Hold
|
Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err:
uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-======================================
======
ii  bug-buddy      2.1.6-1        A graphical bug reporting tool for
GNOME
puccini:~#

Unfortunately, bug-buddy fails. Here, is what ~/.gnome-errors says
happens:

Gtk-WARNING **: gtk_signal_disconnect_by_data(): could not find handler
containi
ng data (0x170890)
The program 'bug-buddy' received an X Window System error.
This probably reflects a bug in the program.
The error was '187'.
  (Details: serial 914 error_code 187 request_code 154 minor_code 8)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error()
function.)

Any suggestions as to how to fix it?

Take care,

Frank Alden Smith



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From: Juergen Braukmann <juergen.braukmann@ruhr-west.de>
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Subject: Re: [parisc-linux] C110, kernel Panics, still more tears ;-(
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Grant Grundler schrieb:
> 
> Juergen Braukmann wrote:
> > Hi Grant and all,
> >
> > still more tears. I compiled and replaced the kernel, using 2.4.18pa55.
> > I used the setting of ccio_mem_ratio=16, but still my kernel panics with
> > Kernel panic: ccio-dma.c ccio_alloc_range() I/O MMU is out of mapping
> > resources.
> > In interrupt handler - not syncing
> 
> Sorry - my bad - I think I have it backwards.
> Using a smaller value will result in more IOMMU resource.
> 
> > would there be more chance with the ccio_mem_ratio setting of 8?
> 
> Or 2 or 1 even.
> 
OK, kernel baking time again. ;-)

> > there a way to use more than one Kernel alternativly and select it at
> > boottime with palo? Is there an example palo.conf somewhere?
> 
> Yes. Interrupt the boot process before palo is loaded and then
> type "Y" to "Interact with IPL (Y/N/Q)?" question. You can then
> specify which vmlinux to boot.

Tried that, but didn't see a reasonable list. I could alter some things
(inluding kernel) but I would have needed to know the name to type in. I
will try to use easy names and numbering for testing.

Thank's a lot

Juergen
> 
> grant

-- 
===========================================     __   _
Juergen Braukmann juergen.braukmann@gmx.de| -o)/ /  (_)__  __ ____  __
Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
===========================================_\_v __/_/_//_/\_,_/ /_/\_\


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Subject: Re: [parisc-linux] C110, kernel Panics, still more tears ;-(
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Grant Grundler schrieb:
> 
> Juergen Braukmann wrote:
> > > How much memory does this system have?  Also what cards do you have in
> > > which slot. (Please also specify PCI or GSC).
> 
> > Speaking about card slots, I don't know what PSC slots are,
> 
> Me either. No such thing as PSC - only GSC or HSC (K-class).
> The slots in the C200 can take either a GSC card or a PCI card.
> 
> grant
Oh these three letter acronyms. Read a few, mix up the letters and
generate a few new ones to spread confusion. Sorry. ;-) So it was GSC
instead. But I am still confused. ;-)

Juergen

-- 
===========================================     __   _
Juergen Braukmann juergen.braukmann@gmx.de| -o)/ /  (_)__  __ ____  __
Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
===========================================_\_v __/_/_//_/\_,_/ /_/\_\


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Subject: Re: [parisc-linux] C110, kernel Panics, still more tears ;-(
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Juergen Braukmann wrote:
> Tried that, but didn't see a reasonable list. I could alter some things
> (inluding kernel) but I would have needed to know the name to type in.

whatever name you used.
I typically copy /usr/src/linux/vmlinux to /boot/vmlinux-paXX
to match the -paXX number in the Makefile.
(And copy System.map with the same convention).
Then interact with palo and specify /boot/vmlinux-pa55.

I change /etc/palo.conf to use /boot/vmlinux-pa55 (and rerun palo at that
point) by default if I'm happy it works.

> Oh these three letter acronyms. Read a few, mix up the letters and
> generate a few new ones to spread confusion. Sorry. ;-) So it was GSC
> instead. But I am still confused. ;-)

See http://www.parisc-linux.org/glossary/index.html

grant


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Subject: [parisc-linux] Solved: C110, kernel Panics, still more tears ;-(
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Grant Grundler schrieb:
> 
> Juergen Braukmann wrote:
> > Hi Grant and all,
> >
> > still more tears. I compiled and replaced the kernel, using 2.4.18pa55.
> > I used the setting of ccio_mem_ratio=16, but still my kernel panics with
> > Kernel panic: ccio-dma.c ccio_alloc_range() I/O MMU is out of mapping
> > resources.
> > In interrupt handler - not syncing
> 
> Sorry - my bad - I think I have it backwards.
> Using a smaller value will result in more IOMMU resource.
> 
> > would there be more chance with the ccio_mem_ratio setting of 8?
> 
> Or 2 or 1 even.

I use a setting of 2 now and was able to ftp a good collection of
kernel.tar.gz files without crash. I hope this darn baby is *not*
playing tricks on me now, since I was once able to ftp a 200 MB file
without crash too. But all left to do is wait and watch and declare it
fixed for the time beeing.

> 
> > there a way to use more than one Kernel alternativly and select it at
> > boottime with palo? Is there an example palo.conf somewhere?
> 
> Yes. Interrupt the boot process before palo is loaded and then
> type "Y" to "Interact with IPL (Y/N/Q)?" question. You can then
> specify which vmlinux to boot.
> 
yep. I started to use "easy" names (as you suggested). I had to try
that, since my default kernel had the setting of 16 and crashes saving a
3MB kernel...

Thanks to all involved to solve this problem.


Juergen

-- 
===========================================     __   _
Juergen Braukmann juergen.braukmann@gmx.de| -o)/ /  (_)__  __ ____  __
Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
===========================================_\_v __/_/_//_/\_,_/ /_/\_\


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Hello;

I was wondering if anyone out there needs older PA-RISC machines to use on
PA-RISC Linux and the Debian 3.0 port to PA-RISC.  I have many 735
workstations, a few 725/715 workstations, and a few C110 workstations.

Right now, they are all collecting dust.  I'd be willing to donate the
machines to someone who will put them to use on the PA-RISC Linux
or Debian 3.0 project.

Thanks,

Michael Madden


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From: DJ Tha Muggs <djmuggs@primare.xs4all.nl>
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Subject: [parisc-linux] Systems Console hangs!
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Hi,

When i boot my C3K with Monitor and Keyboard connected the system doesn't seem to boot fine.
The last thing i see on the screen is that the cron is starting!

But when i use a serial or an ssh connection to the C3K it works.

So it looks like the system boots fine, but i can't use it with a monitor connected :(

I'm running 2.4.18-pa39 for the kernel.

Anyone got an idea?

Kind regards,

Cristian van Ee. 


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Michael Madden schrieb:
> 
> Hello;
> 
> I was wondering if anyone out there needs older PA-RISC machines to use on
> PA-RISC Linux and the Debian 3.0 port to PA-RISC.  I have many 735
> workstations, a few 725/715 workstations, and a few C110 workstations.
> 
> Right now, they are all collecting dust.  I'd be willing to donate the
> machines to someone who will put them to use on the PA-RISC Linux
> or Debian 3.0 project.
> 
> Thanks,
> 
> Michael Madden

Hi Michael,

see http://www.openpa.net (particulary
http://www.openpa.net/about.html). Paul seems to have an interest in
that. I could do with some C110 memory, but it's nbot worth to strip
a working box for that.

Juergen



-- 
===========================================     __   _
Juergen Braukmann juergen.braukmann@gmx.de| -o)/ /  (_)__  __ ____  __
Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
===========================================_\_v __/_/_//_/\_,_/ /_/\_\


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DJ Tha Muggs wrote:
> So it looks like the system boots fine, but i can't use it with a monitor con
>   nected :(

Which graphics card is installed?
FWIW, only PCI Vis-EG gfx card is supported to date.
I thought the FAQ and "Supported HW" web pages covered this.

grant


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On Sun, Jul 21, 2002 at 12:36:37PM -0600, Grant Grundler wrote:
> DJ Tha Muggs wrote:
> > So it looks like the system boots fine, but i can't use it with a monitor con
> >   nected :(
> 
> Which graphics card is installed?
> FWIW, only PCI Vis-EG gfx card is supported to date.
> I thought the FAQ and "Supported HW" web pages covered this.
> 
I see the message for the faq in my screen and after a few seconds the machine contineus to boot in a higher resolution, so it seems my graphics works fine.

Here are some details i got from dmesg:
STI GSC/PCI graphics driver version 0.9
STI PCI graphic ROM found at f7000000 (2048 kB), fb at fa000000 (32 MB)
STI word mode ROM at f7000044, hpa at fa000000
STI id 2fc1066b-9a02587, conforms to spec rev. 8.09
STI device: HPA4553A
stifb: Unsupported gfx card id 0x2fc1066b

stifb: Unsupported gfx card id 0x2fc1066b
sticonsole_init: searching for STI ROMs
Console: switching to colour STI console 160x64

I hope this helps out?

Thx in advance,

Cristian.
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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Subject: Re: [parisc-linux] Solved: C110, kernel Panics, still more tears ;-(
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> I use a setting of 2 now and was able to ftp a good collection of
> kernel.tar.gz files without crash. I hope this darn baby is *not*
> playing tricks on me now, since I was once able to ftp a 200 MB file
> without crash too. But all left to do is wait and watch and declare it
> fixed for the time beeing.

Glad to see you got this working.  I am not sure if the statistics are
still good (need to look into this again) ... but you could probably 
get a feel of size by checking out /proc/bus/runway/ccio to see how much
of the IO PDIR you are using.

- Ryan




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Grant,

Thank you for your reply, after looking at the FAQs i found this:

The system boots up on the STI Console but no "login:" prompt appears, what do I do ? 
Uncomment the tty0 in /etc/inittab.

I'm now trying this.

Cristian.

On Sun, Jul 21, 2002 at 12:36:37PM -0600, Grant Grundler wrote:
> DJ Tha Muggs wrote:
> > So it looks like the system boots fine, but i can't use it with a monitor con
> >   nected :(
> 
> Which graphics card is installed?
> FWIW, only PCI Vis-EG gfx card is supported to date.
> I thought the FAQ and "Supported HW" web pages covered this.
> 
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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Subject: Re: [parisc-linux] Systems Console hangs!
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On Sunday 21 July 2002 20:54, DJ Tha Muggs wrote:
> On Sun, Jul 21, 2002 at 12:36:37PM -0600, Grant Grundler wrote:
> > DJ Tha Muggs wrote:
> > > So it looks like the system boots fine, but i can't use it with a
> > > monitor con nected :(
> >
> > Which graphics card is installed?
> > FWIW, only PCI Vis-EG gfx card is supported to date.
> > I thought the FAQ and "Supported HW" web pages covered this.
>
> I see the message for the faq in my screen and after a few seconds the
> machine contineus to boot in a higher resolution, so it seems my graphics
> works fine.
>
> Here are some details i got from dmesg:
> STI GSC/PCI graphics driver version 0.9
> STI PCI graphic ROM found at f7000000 (2048 kB), fb at fa000000 (32 MB)
> STI word mode ROM at f7000044, hpa at fa000000
> STI id 2fc1066b-9a02587, conforms to spec rev. 8.09
> STI device: HPA4553A
> stifb: Unsupported gfx card id 0x2fc1066b
>
> stifb: Unsupported gfx card id 0x2fc1066b
> sticonsole_init: searching for STI ROMs
> Console: switching to colour STI console 160x64

This is a Summit FX2, FX4 or FX6 gfx card.
As the messages above say you won't be able to use this card
as framebuffer device and thus it's not usable for X11 yet.
But at least Textmode (sticon) support should work.

Greetings,
Helge


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Subject: [parisc-linux] state of 2.5 merge
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we're still a little short of attempting to link.  entry.S and head.S
need to be massaged to work in the new O(1) scheduler world.  note that
we're leaving preempt disabled until later.  once it does attempt to link,
i suspect we'll find there're a lot of functions which need to be written
(particularly mm-related ones) and probably some include cleanups to do.

i guesstimated it'd take a week to get to linking, and we're definitely
halfway there.  thanks to everyone who's participated in the merge,
including: paul bame, randolph chung, thibaut varene, richard hirst,
helge deller and grant grundler.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] C110, kernel Panics, still more tears ;-(
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On Saturday 20 July 2002 9:29 am, Grant Grundler wrote:
> Juergen Braukmann wrote:
> > Hi Grant and all,
> >
> > still more tears. I compiled and replaced the kernel, using
> > 2.4.18pa55. I used the setting of ccio_mem_ratio=16, but still my
> > kernel panics with Kernel panic: ccio-dma.c ccio_alloc_range() I/O MMU
> > is out of mapping resources.
> > In interrupt handler - not syncing
>
> Sorry - my bad - I think I have it backwards.
> Using a smaller value will result in more IOMMU resource.

I have to ask the obvious question -- why not just always use
the largest possible IOVA space, as IA64 does?  Is it a question
of wasting space on IO PDIR entries?


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Bjorn Helgaas wrote:
> I have to ask the obvious question -- why not just always use
> the largest possible IOVA space, as IA64 does?  Is it a question
> of wasting space on IO PDIR entries?

HP ZX1 has something like 512MB or 1GB RAM for the minimum config.
IIRC, 32MB or 64MB was the minimum for C-class boxes and early K-class.
The difference between sizing and not sizing is normally
256KB to 1MB of memory that otherwise just wouldn't get used.

(I assume you meant to size the IOVA space based on physical memory
up to the max IOVA space supported by U2/Uturn.)

grant


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Here's the current crash info with console.  Hopefully I included all 
relevant info.  I'm running 2.4.18-pa55 SMP on a J5000 with 512M ram.  If 
you have any ideas of where I should look for further info, or need to 
know something else about the box, I'd be happy to provide.

Near the end of apt-get update (usually in the "Reading Package Lists" but
this time in end of download), the box crashes.  The console prints the
message "apt-get(268): unaligned access to 0x403ce08c at ip=0x4005e4f7".  
The LCD screen reads "FLT CBFF: SYS BD \ multiple HPMCs" "FLT CBF0: SYS BD
\ HPMC initiated" "FLT 5008: SYS BD \ Runway broad err" "FLT CBF4: SYS BD
\ bad OS HPMC cksm" "FLT CBFC: SYS BD \ OS HPMC br err" "FLT CBF0: SYS BD 
\ HPMC initiated" in an infinate loop.

After power-cycling the box, I interrupted the boot and did a "ser pim".  
Here's the output.  There is nothing in the log files.

PROCESSOR PIM INFORMATION
-----------------  Processor 0 HPMC Information ------------------
Timestamp = 
  Fri Jul  19 22:44:13 GMT 2002    (20:02:07:19:22:44:13)

HPMC Chassis Codes = 2cbf0  25008  2cbf4  2cbfc  

General Registers 0 - 31
00-03   0000000000000000  fffffff0f009d000  fffffff0f000b618  00000000000186a0
04-07   00000019742b1ec9  0000000000000000  00000000003396f8  fffffffffed30000
08-11   fffffff0f0414800  fffffff0f009c850  0000000000000000  0100000000000000
12-15   fffffffffed30058  fffffffffed30000  0000000000000000  fffffffffed30080
16-19   0000000000000001  000000000000000c  0000000000029494  fffffff0f007ee38
20-23   0000000000000007  fffffffffed22238  0000000000000009  fffffff0f003d428
24-27   00000000017553c2  00000000061a8000  00000000029f6300  fffffff0f0412000
28-31   00000000029f6300  0000000000000008  0000000000339a08  fffffff0f007ee38

<Press any key to continue (q to quit)> 
Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   00000000000001ea  0000000000000000  00000000000000c0  000000000000003f
12-15   0000000000000000  0000000000000000  0000000000106000  00000000ff000000
16-19   0000001975a483a5  000000003ffffff5  fffffff0f000b628  00000000020008b8
20-23   0000000014340000  00000000ce7399b0  000000ff0808e908  0000000088000000
24-27   0000000000354000  000000001d9bb000  0000000000044021  00000000f0412000
28-31   0000000055555555  0000000055555555  000000002d9d0000  00000000103f0000
Space Registers 0 - 7

00-03   00000000          000000f5          00000000          000000f5
04-07   000000f5          000000f5          000000f5          000000f5

<Press any key to continue (q to quit)> 

IIA Space                    = 0x000000003ffffff5
IIA Offset                   = 0xfffffff0f000b620
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030000d
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffffa0000
System Requestor Address     = 0xfffffffffffa2000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000a00000001  3f3333334fd369dc  00000003c8700000  7857f4754fd369dc
08-11   00000004b36f8c92  ffffffff0000000a  10101fc000000000  103ffdb300000000
12-15   0000000010347810  1117469010148340  1034781010353640  11174000103e8000
16-19   2ffba00011174000  0000000000000002  000000001034b010  1034781010346810
20-23   1034701010347810  103478102ffba000  0000000000000001  0000000100000000
24-27   0000000100000000  0000000000000000  0000000000000000  00000000102f46b4
28-31   3031323334353637  38396162101485e8  6768696a6b6c6d6e  6f70717273747576

<Press any key to continue (q to quit)> 


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81841008000000
Available Memory             = 0x0000000020000000
CPU Diagnose Register 2      = 0x0201000000000004
CPU Status Register 0        = 0x3440c24000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x4820000000000000
Read Short LOG               = 0xc13ff0f0f000b628
ERROR_STATUS                 = 0x0000000000100010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0x53c43f51e840d000
RUN_DATA_LOW                 = 0x53c33f4d481f06b8
RUN_CTRL                     = 0x0000021c00001418
RUN_ADDR                     = 0xc13ff0f0f000b630
System Responder Path        = 0x00ffffffffffffff

HPMC PIM Analysis Information:
Timestamp = 
  Fri Jul  19 22:44:13 GMT 2002    (20:02:07:19:22:44:13)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

CPU 0 observed a Broadcast Error on the Runway Bus.
Memory/IO Controller Error Analysis Information:

<Press any key to continue (q to quit)> 

-----------------  Processor 0 LPMC Information ------------------
Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000


-----------------  Processor 0 TOC Information -------------------
General Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000

<Press any key to continue (q to quit)> 
Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000000000
CPU State                    = 0x00000000


<Press any key to continue (q to quit)> 

-----------------  Processor 1 HPMC Information ------------------
Timestamp = 
  Fri Jul  19 22:44:13 GMT 2002    (20:02:07:19:22:44:13)

HPMC Chassis Codes = 2cbf0  

General Registers 0 - 31
00-03   0000000000000000  000000001034cf20  000000001010090c  0000000000000000
04-07   0000000000354000  00000000f0400008  00000000000000fa  00000000f0002f68
08-11   0000000000000000  0000000000000000  000000000004000e  0000000010393408
12-15   00000000000000f2  0000000000000001  0000000000000001  00000000000000f3
16-19   0000000002020202  0000000000000002  00000000f000016c  000000001117c000
20-23   0000000000000000  00000000103262a0  0000000010347804  0000000000000000
24-27   00000000103478e0  0000000000000032  0000000000000019  0000000010326010
28-31   0000000000000000  0000000000000010  000000001117c6c0  00000000103478e0

<Press any key to continue (q to quit)> 
Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000114  0000000000000000  00000000000000c0  000000000000001e
12-15   0000000000000000  0000000000000000  0000000000106000  00000000ff000000
16-19   00000019366a2a9a  0000000000000000  0000000010100914  0000000086803fe5
20-23   0000000000000000  0000000000000000  000000000004ff0f  0000000000000000
24-27   0000000000354000  000000001f77c000  0000000000044021  00000000f0412000
28-31   0000000055555555  0000000055555555  000000001117c000  0000000011111111
Space Registers 0 - 7

00-03   00000000          0000008a          00000000          0000008a
04-07   00000000          00000000          00000000          00000000

<Press any key to continue (q to quit)> 

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000010100918
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030000d
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffffa2000
System Requestor Address     = 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000  0000000000000000
04-07   2ffba00000000001  000000011015fa10  1035305000000000  11174000103e8000
08-11   1035305000000002  ffffffff0000000a  10101fc000000000  103ffdb300000000
12-15   0000000010347810  1117469010148340  1034781010353640  11174000103e8000
16-19   2ffba00011174000  0000000000000002  000000001034b010  1034781010346810
20-23   1034701010347810  103478102ffba000  cccccccd51eb874f  0000000333333334
24-27   b38cf9b100000450  0000000600000000  0000000f102f46a8  2ffba005102f46b4
28-31   3031323334353637  38396162101485e8  6768696a6b6c6d6e  6f70717273747576

<Press any key to continue (q to quit)> 


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81841000000000
Available Memory             = 0x0000000020000000
CPU Diagnose Register 2      = 0x0201010000000004
CPU Status Register 0        = 0x3440c24000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x4800000000000000
Read Short LOG               = 0xc1af00fffed30000
ERROR_STATUS                 = 0x0000000000100010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0x37470000ebffbb9d
RUN_DATA_LOW                 = 0x37470000ebffbb9d
RUN_CTRL                     = 0x0000005c00001658
RUN_ADDR                     = 0xc1bff0f0f0408f08
System Responder Path        = 0x00ffffffffffffff

HPMC PIM Analysis Information:
   No valid timestamp


Memory/IO Controller Error Analysis Information:

<Press any key to continue (q to quit)> 

-----------------  Processor 1 LPMC Information ------------------
Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000


-----------------  Processor 1 TOC Information -------------------
General Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000

<Press any key to continue (q to quit)> 
Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000000000
CPU State                    = 0x00000000


<Press any key to continue (q to quit)> 
Memory Error Log Information:
Timestamp = 
  Fri Jul  19 22:44:13 GMT 2002    (20:02:07:19:22:44:13)


'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:

   No memory errors logged
I/O Module Error Log Information:
Timestamp = 
  Fri Jul  19 22:44:13 GMT 2002    (20:02:07:19:22:44:13)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc229   ------------------
   3    ----------   0x3f4fd808   ------------------
   4    0x00000000   0x40000008   0xffffffffffffffff
   5    ----------   0x50000008   ------------------
   6    0x00000000   0x60000008   0xffffffffffffffff
   7    ----------   0x70100008   ------------------
Main Menu: Enter command > 

--
	"During the race
	 We may eat your dust,
	 But when you graduate,
	 You'll work for us."
	-- Reed College cheer



From - Thu Nov 08 21:23:52 2018
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Path: news.gmane.org!not-for-mail
From: Michael Madden <madden@maddentechnologies.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] XFree86 on B132L using Debian 3.0
Date: Mon, 22 Jul 2002 18:40:21 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:15608

Has anyone gotten X to work with the recently released Debian 3.0 on 
a PA-RISC machine?  I have a B132L+ that I've installed Debian 3.0 on,
but I cannot get X setup correctly.

I am attaching my config and log files if it helps.

Thanks in advance,
Michael

================================================================================

### BEGIN DEBCONF SECTION
# XF86Config-4 (XFree86 server configuration file) generated by dexconf, the
# Debian X Configuration tool, using values from the debconf database.
#
# Edit this file with caution, and see the XF86Config-4 manual page.
# (Type "man XF86Config-4" at the shell prompt.)
#
# If you want your changes to this file preserved by dexconf, only make changes
# before the "### BEGIN DEBCONF SECTION" line above, and/or after the
# "### END DEBCONF SECTION" line below.
#
# To change things within the debconf section, run the command:
#   dpkg-reconfigure xserver-xfree86
# as root.  Also see "How do I add custom sections to a dexconf-generated
# XF86Config or XF86Config-4 file?" in /usr/share/doc/xfree86-common/FAQ.gz.

Section "Files"
	FontPath	"unix/:7100"			# local font server
	# if the local font server has problems, we can fall back on these
	FontPath	"/usr/lib/X11/fonts/misc"
	FontPath	"/usr/lib/X11/fonts/cyrillic"
	FontPath	"/usr/lib/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/Type1"
	FontPath	"/usr/lib/X11/fonts/Speedo"
	FontPath	"/usr/lib/X11/fonts/100dpi"
	FontPath	"/usr/lib/X11/fonts/75dpi"
EndSection

Section "Module"
	Load	"GLcore"
	Load	"bitmap"
	Load	"dbe"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"pex5"
	Load	"record"
	Load	"speedo"
	Load	"type1"
	Load	"vbe"
	Load	"xie"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"keyboard"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xfree86"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/psaux"
	Option		"Protocol"		"PS/2"
EndSection

Section "InputDevice"
	Identifier	"Generic Mouse"
	Driver		"mouse"
	Option		"SendCoreEvents"	"true"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
EndSection

Section "Device"
	Identifier	"Generic Video Card"
	Driver		"fbdev"
	Option		"UseFBDev"		"true"
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	HorizSync	30-130
	VertRefresh	50-160
	Option		"DPMS"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Generic Video Card"
	Monitor		"Generic Monitor"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1280x1024"
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
	InputDevice	"Generic Mouse"
EndSection

Section "DRI"
	Mode	0666
EndSection

### END DEBCONF SECTION

================================================================================

This is a pre-release version of XFree86, and is not supported in any
way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
please check the latest version in the XFree86 CVS repository
(http://www.XFree86.Org/cvs)

XFree86 Version 4.1.0.1 / X Window System
(protocol Version 11, revision 0, vendor release 6510)
Release Date: 21 December 2001
	If the server is older than 6-12 months, or if your card is
	newer than the above date, look for a newer version before
	reporting problems.  (See http://www.XFree86.Org/FAQ)
Build Operating System: Linux 2.4.16-64 parisc64 [ELF] 
(==) Log file: "/var/log/XFree86.0.log", Time: Mon Jul 22 17:39:11 2002
(==) Using config file: "/etc/X11/XF86Config-4"
Markers: (--) probed, (**) from config file, (==) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) ServerLayout "Default Layout"
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "Generic Monitor"
(**) |   |-->Device "Generic Video Card"
(**) |-->Input Device "Generic Keyboard"
(**) Option "XkbRules" "xfree86"
(**) XKB: rules: "xfree86"
(**) Option "XkbModel" "pc104"
(**) XKB: model: "pc104"
(**) Option "XkbLayout" "us"
(**) XKB: layout: "us"
(==) Keyboard: CustomKeycode disabled
(**) |-->Input Device "Configured Mouse"
(**) |-->Input Device "Generic Mouse"
(WW) The directory "/usr/lib/X11/fonts/cyrillic" does not exist.
	Entry deleted from font path.
(**) FontPath set to "unix/:7100,/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts/100dpi/:unscaled,/usr/lib/X11/fonts/75dpi/:unscaled,/usr/lib/X11/fonts/Type1,/usr/lib/X11/fonts/Speedo,/usr/lib/X11/fonts/100dpi,/usr/lib/X11/fonts/75dpi"
(==) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(++) using VT number 7

(WW) Cannot open APM
(II) PCI: PCI scan (all values are in hex)
(II) PCI: 00:13:0: chip 1000,000f card 0000,0000 rev 04 class 01,00,00 hdr 00
(II) PCI: 00:14:0: chip 1011,0019 card 103c,104f rev 30 class 02,00,00 hdr 00
(II) PCI: 01:04:0: chip 103c,1008 card 0000,0000 rev 02 class 03,80,00 hdr 00
(II) PCI: End of PCI scan
(II) Host-to-PCI bridge:
(II) Host-to-PCI bridge:
(II) Bus 0: bridge is at (0:0:0), (-1,0,0), BCTRL: 0x00 (VGA_EN is cleared)
(II) Bus 0 I/O range:
	[0] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 0 non-prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 0 prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 1: bridge is at (0:0:0), (-1,1,0), BCTRL: 0x00 (VGA_EN is cleared)
(II) Bus 1 I/O range:
	[0] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 1 non-prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 1 prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(--) PCI: (1:4:0) HP unknown chipset (0x1008) rev 2, Mem @ 0xf6000000/25, BIOS @ 0xf1e00000/21
(II) Addressable bus resource ranges are
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
	[1] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) OS-reported resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) Active PCI resource ranges:
	[0] -1 0	0xf2fff000 - 0xf2fff07f (0x80) MX[B]
	[1] -1 0	0xf2ffe000 - 0xf2ffefff (0x1000) MX[B]
	[2] -1 0	0xf2ffd000 - 0xf2ffd0ff (0x100) MX[B]
	[3] -1 0	0xf1e00000 - 0xf1ffffff (0x200000) MX[B](B)
	[4] -1 0	0xf6000000 - 0xf7ffffff (0x2000000) MX[B](B)
	[5] -1 0	0x0000ff00 - 0x0000ff7f (0x80) IX[B]
	[6] -1 0	0x0000fe00 - 0x0000feff (0x100) IX[B]
(II) Active PCI resource ranges after removing overlaps:
	[0] -1 0	0xf2fff000 - 0xf2fff07f (0x80) MX[B]
	[1] -1 0	0xf2ffe000 - 0xf2ffefff (0x1000) MX[B]
	[2] -1 0	0xf2ffd000 - 0xf2ffd0ff (0x100) MX[B]
	[3] -1 0	0xf1e00000 - 0xf1ffffff (0x200000) MX[B](B)
	[4] -1 0	0xf6000000 - 0xf7ffffff (0x2000000) MX[B](B)
	[5] -1 0	0x0000ff00 - 0x0000ff7f (0x80) IX[B]
	[6] -1 0	0x0000fe00 - 0x0000feff (0x100) IX[B]
(II) OS-reported resource ranges after removing overlaps with PCI:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) All system resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0xf2fff000 - 0xf2fff07f (0x80) MX[B]
	[3] -1 0	0xf2ffe000 - 0xf2ffefff (0x1000) MX[B]
	[4] -1 0	0xf2ffd000 - 0xf2ffd0ff (0x100) MX[B]
	[5] -1 0	0xf1e00000 - 0xf1ffffff (0x200000) MX[B](B)
	[6] -1 0	0xf6000000 - 0xf7ffffff (0x2000000) MX[B](B)
	[7] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[8] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
	[9] -1 0	0x0000ff00 - 0x0000ff7f (0x80) IX[B]
	[10] -1 0	0x0000fe00 - 0x0000feff (0x100) IX[B]
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
	mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
(II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,
	pm2, pm, 300sx, 500tx, mx, delta
	S3VIdentify
(II) S3VIRGE: driver (version 1.6.13) for S3 ViRGE chipsets: virge, 86C325,
	virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
	86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
	trio 3d/2x, 86C362, 86C368
(II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
	SIS300, SIS630, SIS540
(II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
	Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
	Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
	TwisterK
(II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, cyber9388,
	cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
	tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
	providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
	cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
	cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
	ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
	ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
	3dfx Voodoo3, 3dfx Voodoo5
(II) FBDev: driver for framebuffer: fbdev, afb
(II) ATI: ATI driver (version 6.3.6) for chipsets: ati
(II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
	ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
	ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
	ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
	ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
	ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
	ATI Rage 128 Mobility ML (AGP)
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
	ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
	ATI Radeon VE (AGP)
(II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,
	imstt3d
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) v4l driver for Video4Linux
	S3VProbe begin
(EE) No devices detected.

Fatal server error:
no screens found

When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to submit@bugs.debian.org.



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Michael Madden wrote:
> Has anyone gotten X to work with the recently released Debian 3.0 on 
> a PA-RISC machine?  I have a B132L+ that I've installed Debian 3.0 on,
> but I cannot get X setup correctly.

	ftp://ftp.parisc-linux.org/kernels/b180

Has one XF86Config-4 (.joel) and will get another from my b180
if it's any different.

Oh, and you've got too many bit depths listed in your XF86Config-4.
I don't know why, but the X11 server can only tolerated one.
Use what "fbset -i" output provides.

grant


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-------------------------------------------------------------------
-->> FREE Perl CGI scripts add WEB ACCESS to your POP email accounts!
-->> Download today!! http://www.adjeweb.com
-------------------------------------------------------------------

`gcc -print-libgcc-file-name` /usr/src/linux/arch/parisc/lib/lib.a
/usr/src/linux/lib/lib.a  \
        --end-group \
        -o vmlinux
drivers/video/video.o: In function `.L1581':
drivers/video/video.o(.init.text 0x23e8): undefined reference to
`fbcon_sti'
drivers/video/video.o: In function `.L1639':
drivers/video/video.o(.init.text 0x25d0): undefined reference to
`fbcon_sti'
make: *** [vmlinux] Error 1

I tried to compile pa56
I made make oldconfig from pa54


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Quoting Stephan Trajkoff <stephan@itp.bg>:

> 
> -------------------------------------------------------------------
> -->> FREE Perl CGI scripts add WEB ACCESS to your POP email accounts!
> -->> Download today!! http://www.adjeweb.com
> -------------------------------------------------------------------
> 
> `gcc -print-libgcc-file-name` /usr/src/linux/arch/parisc/lib/lib.a
> /usr/src/linux/lib/lib.a  \
>         --end-group \
>         -o vmlinux
> drivers/video/video.o: In function `.L1581':
> drivers/video/video.o(.init.text 0x23e8): undefined reference to
> `fbcon_sti'
> drivers/video/video.o: In function `.L1639':
> drivers/video/video.o(.init.text 0x25d0): undefined reference to
> `fbcon_sti'
> make: *** [vmlinux] Error 1
> 
> I tried to compile pa56
> I made make oldconfig from pa54

Do you try make clean after make oldconfig and before make vmlinux?

(I also do it yesterday evening and do not met any problem)

Joel


-------------------------------------------------
This mail sent through Tiscali Webmail (http://webmail.tiscali.be)


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joel.soete@freebel.net wrote:

>Quoting Stephan Trajkoff <stephan@itp.bg>:
>
>  
>
>>-------------------------------------------------------------------
>>-->> FREE Perl CGI scripts add WEB ACCESS to your POP email accounts!
>>-->> Download today!! http://www.adjeweb.com
>>-------------------------------------------------------------------
>>
>>`gcc -print-libgcc-file-name` /usr/src/linux/arch/parisc/lib/lib.a
>>/usr/src/linux/lib/lib.a  \
>>        --end-group \
>>        -o vmlinux
>>drivers/video/video.o: In function `.L1581':
>>drivers/video/video.o(.init.text 0x23e8): undefined reference to
>>`fbcon_sti'
>>drivers/video/video.o: In function `.L1639':
>>drivers/video/video.o(.init.text 0x25d0): undefined reference to
>>`fbcon_sti'
>>make: *** [vmlinux] Error 1
>>
>>I tried to compile pa56
>>I made make oldconfig from pa54
>>    
>>
>
>Do you try make clean after make oldconfig and before make vmlinux?
>
>(I also do it yesterday evening and do not met any problem)
>
>Joel
>
>
>-------------------------------------------------
>This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>Man I am not stupid, make oldconfig && make dep && make clean && make 
>
I working with UNIX(Linux, qnx) for 4 years...
I made apt-get dist-upgrade
very strange dude

>  
>



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Subject: [parisc-linux] New genrtc driver
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there seems to be a newer RTC driver, based on the one we're currently
using.  anyone want to take a bash at integrating it into our 2.5 tree
and making it work for us?

http://www.uwsg.iu.edu/hypermail/linux/kernel/0207.2/1660.html

-- 
Revolutions do not require corporate support.


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This is a multi-part message in MIME format.

------=_NextPart_000_0080_01C23260.DFA6B950
Content-Type: text/plain;
	charset="iso-8859-1"
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Hi all,

Today I "baked" myself a new kernel (2.4.18-pa56). After upgrading my box
(using apt-get), INIT was dying upon startup with an "unaligned access"
error. Anyway, all is working well (even the soft-power button), but I am
getting an "unresolved symbols"-error when doing a "make modules_install"
(see attached file). Yes, I copied the System.map to
/boot/System.map-2.4.18-pa56 and created a symbolic link to this file. Any
ideas?

Many thanks in advance.


regards,

Kenneth

------=_NextPart_000_0080_01C23260.DFA6B950
Content-Type: application/octet-stream;
	name="make_modules.log"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="make_modules.log"

make -C  kernel modules_install=0A=
make[1]: Entering directory `/usr/src/linux-2.4.18-pa56/kernel'=0A=
make[1]: Nothing to be done for `modules_install'.=0A=
make[1]: Leaving directory `/usr/src/linux-2.4.18-pa56/kernel'=0A=
make -C  drivers modules_install=0A=
make[1]: Entering directory `/usr/src/linux-2.4.18-pa56/drivers'=0A=
make -C block modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/drivers/block'=0A=
make[2]: Nothing to be done for `modules_install'.=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/drivers/block'=0A=
make -C cdrom modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/drivers/cdrom'=0A=
make[2]: Nothing to be done for `modules_install'.=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/drivers/cdrom'=0A=
make -C char modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/drivers/char'=0A=
make[2]: Nothing to be done for `modules_install'.=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/drivers/char'=0A=
make -C hotplug modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/drivers/hotplug'=0A=
make[2]: Nothing to be done for `modules_install'.=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/drivers/hotplug'=0A=
make -C media modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/drivers/media'=0A=
make -C radio modules_install=0A=
make[3]: Entering directory =
`/usr/src/linux-2.4.18-pa56/drivers/media/radio'=0A=
make[3]: Nothing to be done for `modules_install'.=0A=
make[3]: Leaving directory =
`/usr/src/linux-2.4.18-pa56/drivers/media/radio'=0A=
make -C video modules_install=0A=
make[3]: Entering directory =
`/usr/src/linux-2.4.18-pa56/drivers/media/video'=0A=
make[3]: Nothing to be done for `modules_install'.=0A=
make[3]: Leaving directory =
`/usr/src/linux-2.4.18-pa56/drivers/media/video'=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/drivers/media'=0A=
make -C misc modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/drivers/misc'=0A=
make[2]: Nothing to be done for `modules_install'.=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/drivers/misc'=0A=
make -C net modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/drivers/net'=0A=
make[2]: Nothing to be done for `modules_install'.=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/drivers/net'=0A=
make -C parport modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/drivers/parport'=0A=
make[2]: Nothing to be done for `modules_install'.=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/drivers/parport'=0A=
make -C scsi modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/drivers/scsi'=0A=
mkdir -p /lib/modules/2.4.18-pa56/kernel/drivers/scsi/=0A=
cp ppa.o /lib/modules/2.4.18-pa56/kernel/drivers/scsi/=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/drivers/scsi'=0A=
make -C sound modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/drivers/sound'=0A=
make[2]: Nothing to be done for `modules_install'.=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/drivers/sound'=0A=
make -C video modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/drivers/video'=0A=
make -C sti modules_install=0A=
make[3]: Entering directory =
`/usr/src/linux-2.4.18-pa56/drivers/video/sti'=0A=
make[3]: Nothing to be done for `modules_install'.=0A=
make[3]: Leaving directory `/usr/src/linux-2.4.18-pa56/drivers/video/sti'=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/drivers/video'=0A=
make[1]: Leaving directory `/usr/src/linux-2.4.18-pa56/drivers'=0A=
make -C  mm modules_install=0A=
make[1]: Entering directory `/usr/src/linux-2.4.18-pa56/mm'=0A=
make[1]: Nothing to be done for `modules_install'.=0A=
make[1]: Leaving directory `/usr/src/linux-2.4.18-pa56/mm'=0A=
make -C  fs modules_install=0A=
make[1]: Entering directory `/usr/src/linux-2.4.18-pa56/fs'=0A=
make -C nls modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/fs/nls'=0A=
make[2]: Nothing to be done for `modules_install'.=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/fs/nls'=0A=
make[1]: Leaving directory `/usr/src/linux-2.4.18-pa56/fs'=0A=
make -C  net modules_install=0A=
make[1]: Entering directory `/usr/src/linux-2.4.18-pa56/net'=0A=
make -C ipv4 modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/net/ipv4'=0A=
make[2]: Nothing to be done for `modules_install'.=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/net/ipv4'=0A=
make -C netlink modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/net/netlink'=0A=
make[2]: Nothing to be done for `modules_install'.=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/net/netlink'=0A=
make -C sched modules_install=0A=
make[2]: Entering directory `/usr/src/linux-2.4.18-pa56/net/sched'=0A=
make[2]: Nothing to be done for `modules_install'.=0A=
make[2]: Leaving directory `/usr/src/linux-2.4.18-pa56/net/sched'=0A=
make[1]: Leaving directory `/usr/src/linux-2.4.18-pa56/net'=0A=
make -C  ipc modules_install=0A=
make[1]: Entering directory `/usr/src/linux-2.4.18-pa56/ipc'=0A=
make[1]: Nothing to be done for `modules_install'.=0A=
make[1]: Leaving directory `/usr/src/linux-2.4.18-pa56/ipc'=0A=
make -C  lib modules_install=0A=
make[1]: Entering directory `/usr/src/linux-2.4.18-pa56/lib'=0A=
make[1]: Nothing to be done for `modules_install'.=0A=
make[1]: Leaving directory `/usr/src/linux-2.4.18-pa56/lib'=0A=
make -C  arch/parisc/tools modules_install=0A=
make[1]: Entering directory =
`/usr/src/linux-2.4.18-pa56/arch/parisc/tools'=0A=
make[1]: Nothing to be done for `modules_install'.=0A=
make[1]: Leaving directory `/usr/src/linux-2.4.18-pa56/arch/parisc/tools'=0A=
make -C  arch/parisc/kernel modules_install=0A=
make[1]: Entering directory =
`/usr/src/linux-2.4.18-pa56/arch/parisc/kernel'=0A=
make[1]: Nothing to be done for `modules_install'.=0A=
make[1]: Leaving directory =
`/usr/src/linux-2.4.18-pa56/arch/parisc/kernel'=0A=
make -C  arch/parisc/mm modules_install=0A=
make[1]: Entering directory `/usr/src/linux-2.4.18-pa56/arch/parisc/mm'=0A=
make[1]: Nothing to be done for `modules_install'.=0A=
make[1]: Leaving directory `/usr/src/linux-2.4.18-pa56/arch/parisc/mm'=0A=
make -C  arch/parisc/lib modules_install=0A=
make[1]: Entering directory `/usr/src/linux-2.4.18-pa56/arch/parisc/lib'=0A=
make[1]: Nothing to be done for `modules_install'.=0A=
make[1]: Leaving directory `/usr/src/linux-2.4.18-pa56/arch/parisc/lib'=0A=
make -C  arch/parisc/hpux modules_install=0A=
make[1]: Entering directory `/usr/src/linux-2.4.18-pa56/arch/parisc/hpux'=0A=
make[1]: Nothing to be done for `modules_install'.=0A=
make[1]: Leaving directory `/usr/src/linux-2.4.18-pa56/arch/parisc/hpux'=0A=
make -C  arch/parisc/math-emu modules_install=0A=
make[1]: Entering directory =
`/usr/src/linux-2.4.18-pa56/arch/parisc/math-emu'=0A=
make[1]: Nothing to be done for `modules_install'.=0A=
make[1]: Leaving directory =
`/usr/src/linux-2.4.18-pa56/arch/parisc/math-emu'=0A=
cd /lib/modules/2.4.18-pa56; \=0A=
mkdir -p pcmcia; \=0A=
find kernel -path '*/pcmcia/*' -name '*.o' | xargs -i -r ln -sf ../{} =
pcmcia=0A=
if [ -r System.map ]; then /sbin/depmod -ae -F System.map  2.4.18-pa56; =
fi=0A=
depmod: *** Unresolved symbols in =
/lib/modules/2.4.18-pa56/kernel/drivers/scsi/ppa.o=0A=
depmod: 	outsb=0A=
depmod: 	outsl=0A=
depmod: 	insb=0A=
depmod: 	insl=0A=
make: *** [_modinst_post] Error 1=0A=

------=_NextPart_000_0080_01C23260.DFA6B950--


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Subject: Re: [parisc-linux] unresoved symbols when doing a make modules_install
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Xref: news.gmane.org gmane.linux.ports.parisc:15615

On Tue, Jul 23, 2002 at 03:51:57PM +0200, kenneth westelinck wrote:
> Today I "baked" myself a new kernel (2.4.18-pa56). After upgrading my box
> (using apt-get), INIT was dying upon startup with an "unaligned access"
> error. Anyway, all is working well (even the soft-power button), but I am
> getting an "unresolved symbols"-error when doing a "make modules_install"
> (see attached file). Yes, I copied the System.map to
> /boot/System.map-2.4.18-pa56 and created a symbolic link to this file. Any
> ideas?

i'm baffled.  we prototype, define and EXPORT_SYMBOL outs[bwl].  i can't
see why you'd get this error.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] cannot make kernel
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Quoting Stephan Trajkoff <stephan@itp.bg>:

> joel.soete@freebel.net wrote:
> 
> >Quoting Stephan Trajkoff <stephan@itp.bg>:
> >
> >  
> >
> >>-------------------------------------------------------------------
> >>-->> FREE Perl CGI scripts add WEB ACCESS to your POP email accounts!
> >>-->> Download today!! http://www.adjeweb.com
> >>-------------------------------------------------------------------
> >>
> >>`gcc -print-libgcc-file-name` /usr/src/linux/arch/parisc/lib/lib.a
> >>/usr/src/linux/lib/lib.a  \
> >>        --end-group \
> >>        -o vmlinux
> >>drivers/video/video.o: In function `.L1581':
> >>drivers/video/video.o(.init.text 0x23e8): undefined reference to
> >>`fbcon_sti'
> >>drivers/video/video.o: In function `.L1639':
> >>drivers/video/video.o(.init.text 0x25d0): undefined reference to
> >>`fbcon_sti'
> >>make: *** [vmlinux] Error 1
> >>
> >>I tried to compile pa56
> >>I made make oldconfig from pa54
> >>    
> >>
> >
> >Do you try make clean after make oldconfig and before make vmlinux?
> >
> >(I also do it yesterday evening and do not met any problem)
> >
> >Joel
> >
> >
> >-------------------------------------------------
> >This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> >_______________________________________________
> >parisc-linux mailing list
> >parisc-linux@lists.parisc-linux.org
> >http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
> >Man I am not stupid, make oldconfig && make dep && make clean && make 
> >
> I working with UNIX(Linux, qnx) for 4 years...
> I made apt-get dist-upgrade
> very strange dude

Hey,

I just put a question?




-------------------------------------------------
This mail sent through Tiscali Webmail (http://webmail.tiscali.be)


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> there seems to be a newer RTC driver, based on the one we're currently
> using.  anyone want to take a bash at integrating it into our 2.5 tree
> and making it work for us?
> 
> http://www.uwsg.iu.edu/hypermail/linux/kernel/0207.2/1660.html

yup, i can look at this.

randolph


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Hi,

I try to setup a C180. I have no CD and 'may be' my problems come from there.

I have a bootable external drive (that use to run on a 712) I boot this
external drive from the C180, it boot narrow ilp32, from there I partionion
the internal FWSCSI drive, 3 partition, it look like this

iws1pb02:/# fdisk /dev/sda 

Command (m for help): p

Disk /dev/sda: 133 heads, 62 sectors, 1017 cylinders
Units = cylinders of 8246 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sda1   *         1         8     32953   f0  Linux/PA-RISC boot
/dev/sda2             9        50    173166   82  Linux swap
/dev/sda3            51      1017   3986941   83  Linux

Then I made mkswap, mke2fs, then I cpio -p the external disc onto the internal
disc (after a mount of the external disc).

I rm /etc/mtab and reboot the internal disc, I boot isl to tune the kernel
runstring, then I got something that works....

The idea then is to refresh the 'old' booted distro with a mega apt-get
upgrade, all went fine until apt-get start displaying things like this

..............

Err http://ftp.fr.debian.org unstable/main libgnorba27 1.4.1.7-2
  Could not open file
/var/cache/apt/archives/partial/libgnorba27_1.4.1.7-2_hppa.deb - open (30
Read-only file system)

............

Apparently the / wne RO because of coruption detected.

And a quick look of file showing

phi@iws1pb02:/usr$ find . 
find: ./share/doc/xserver-common: Input/output error
find: ./share/doc/liblcms: Input/output error
find: ./share/perl/5.6.1/bigfloat.pl: Input/output error
find: ./share/perl/5.6.1/bigint.pl: Input/output error
find: ./share/perl/5.6.1/bigrat.pl: Input/output error


At this stage the FS is real corupted, and fsck -y can correct, but many files
are lost.

I am doing something wrong? does e2fs survive that big FS partition? Does the
FWSCSI reliable? May be my disc is shaky?


Thanx in advance for any sugestions
Phi


From - Thu Nov 08 21:23:52 2018
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From: Peter Mottram <peter@petescaff.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C180 FWSCSI e2fs coruption
Date: Tue, 23 Jul 2002 17:59:59 +0200 (CEST)
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To: phi <phi@hpfrcu81.france.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:15619

A well known problem - almost certainly due to an old kernel rev + the NCR
SCSI controller on the C180 - see:

http://parisc-linux.org/release-0.9/errata-093.html

....look for the 'Filesystem Corruption' section

R.
PeteM

On Tue, 23 Jul 2002, phi wrote:

> Hi,
>
> I try to setup a C180. I have no CD and 'may be' my problems come from there.
>
> I have a bootable external drive (that use to run on a 712) I boot this
> external drive from the C180, it boot narrow ilp32, from there I partionion
> the internal FWSCSI drive, 3 partition, it look like this
>
> iws1pb02:/# fdisk /dev/sda
>
> Command (m for help): p
>
> Disk /dev/sda: 133 heads, 62 sectors, 1017 cylinders
> Units = cylinders of 8246 * 512 bytes
>
>    Device Boot    Start       End    Blocks   Id  System
> /dev/sda1   *         1         8     32953   f0  Linux/PA-RISC boot
> /dev/sda2             9        50    173166   82  Linux swap
> /dev/sda3            51      1017   3986941   83  Linux
>
> Then I made mkswap, mke2fs, then I cpio -p the external disc onto the internal
> disc (after a mount of the external disc).
>
> I rm /etc/mtab and reboot the internal disc, I boot isl to tune the kernel
> runstring, then I got something that works....
>
> The idea then is to refresh the 'old' booted distro with a mega apt-get
> upgrade, all went fine until apt-get start displaying things like this
>
> ..............
>
> Err http://ftp.fr.debian.org unstable/main libgnorba27 1.4.1.7-2
>   Could not open file
> /var/cache/apt/archives/partial/libgnorba27_1.4.1.7-2_hppa.deb - open (30
> Read-only file system)
>
> ............
>
> Apparently the / wne RO because of coruption detected.
>
> And a quick look of file showing
>
> phi@iws1pb02:/usr$ find .
> find: ./share/doc/xserver-common: Input/output error
> find: ./share/doc/liblcms: Input/output error
> find: ./share/perl/5.6.1/bigfloat.pl: Input/output error
> find: ./share/perl/5.6.1/bigint.pl: Input/output error
> find: ./share/perl/5.6.1/bigrat.pl: Input/output error
>
>
> At this stage the FS is real corupted, and fsck -y can correct, but many files
> are lost.
>
> I am doing something wrong? does e2fs survive that big FS partition? Does the
> FWSCSI reliable? May be my disc is shaky?
>
>
> Thanx in advance for any sugestions
> Phi
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



From - Thu Nov 08 21:23:53 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.5 willy
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On Tue, Jul 23, 2002 at 12:08:34PM -0600, Matthew Wilcox wrote:
> Modified files:
> 	drivers/video  : Config.in Makefile fbcon-sti.c fbmem.c 
> Added files:
> 	drivers/video/sti: Makefile sticon.c sticore.c sticore.h stifb.c 
> Removed files:
> 	drivers/video  : sti-bmode.h sti.h sticon-bmode.c sticon.c 
> 	                 sticore.c stifb.c 
> Log message:
> merge 2.4 STI changes into 2.5 tree.

could someone more competent than myself check over these changes?  they
seem right to me, but there have been some moderately hairy changes made
to the FB subsystem.  stifb_blank should now return an int, not void ...
not sure what to return though ;-)

-- 
Revolutions do not require corporate support.


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From: "kenneth westelinck" <kennywest1@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] linux_logo.h
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This is a multi-part message in MIME format.

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Hi all,

The linux_logo.h that is available on the esiee site
(http://pateam.esiee.fr/download.html) seems a little outdated. Here's a
version that works with 2.4.18-pa56.


regards,

Kenneth

------=_NextPart_000_006A_01C2325C.6FB63F70
Content-Type: application/octet-stream;
	name="linux_logo.h"
Content-Transfer-Encoding: 7bit
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	filename="linux_logo.h"

/* $Id: linux_logo.h,v 1.5 1998/07/30 16:30:58 jj Exp $
 * include/linux/linux_logo.h: This is a linux logo
 *                             to be displayed on boot.
 *
 * Copyright (C) 1996 Larry Ewing (lewing@isc.tamu.edu)
 * Copyright (C) 1996,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
 *
 * You can put anything here, but:
 * LINUX_LOGO_COLORS has to be less than 224
 * image size has to be 80x80
 * values have to start from 0x20
 * (i.e. RGB(linux_logo_red[0],
 *           linux_logo_green[0],
 *           linux_logo_blue[0]) is color 0x20)
 * BW image has to be 80x80 as well, with MS bit
 * on the left
 * Serial_console ascii image can be any size,
 * but should contain %s to display the version
 */

#ifndef __HAVE_ARCH_LINUX_LOGO
#define LINUX_LOGO_COLORS	214
#endif

#ifdef INCLUDE_LINUX_LOGO_DATA

#ifndef __HAVE_ARCH_LINUX_LOGO

unsigned char linux_logo_red[] __initdata = {
    0x77, 0x69, 0xe5, 0xff, 0x99, 0x66, 0x33, 0xa7,
    0xcc, 0x33, 0x33, 0x02, 0x00, 0x99, 0x99, 0x99,
    0x99, 0x66, 0xcc, 0xf5, 0xcc, 0xff, 0xff, 0xff,
    0x99, 0x33, 0xcc, 0x66, 0xcc, 0xcc, 0xcc, 0x99,
    0x66, 0x00, 0x00, 0x33, 0x00, 0x66, 0x00, 0x66,
    0x99, 0xff, 0xcc, 0x62, 0x33, 0x66,
};

unsigned char linux_logo_green[] __initdata = {
    0x81, 0x73, 0xe8, 0xff, 0x99, 0x66, 0x66, 0xad,
    0xcc, 0x33, 0x33, 0x02, 0x00, 0x66, 0x66, 0x99,
    0x99, 0x33, 0x99, 0xbd, 0x99, 0xcc, 0xcc, 0xcc,
    0x99, 0x33, 0x66, 0x66, 0x99, 0x99, 0xcc, 0xcc,
    0x99, 0x66, 0x66, 0x99, 0x99, 0xcc, 0x33, 0x99,
    0x66, 0xff, 0xcc, 0x4c, 0x00, 0x66,
};

unsigned char linux_logo_blue[] __initdata = {
    0x94, 0x87, 0xeb, 0xff, 0x99, 0x66, 0x66, 0xb8,
    0xcc, 0x66, 0x33, 0x04, 0x00, 0x33, 0x00, 0x00,
    0x33, 0x00, 0x00, 0x0c, 0x66, 0x33, 0x00, 0x66,
    0x66, 0x00, 0x00, 0x00, 0x33, 0x99, 0x99, 0xcc,
    0x99, 0x66, 0x99, 0x99, 0x99, 0xcc, 0x33, 0xcc,
    0x66, 0xcc, 0x66, 0x27, 0x00, 0x33,
};

unsigned char linux_logo[] __initdata = {
    0x20, 0x21, 0x20, 0x20, 0x20, 0x22, 0x22, 0x20,
    0x20, 0x22, 0x23, 0x22, 0x24, 0x25, 0x26, 0x21,
    0x22, 0x24, 0x21, 0x20, 0x21, 0x20, 0x20, 0x20,
    0x20, 0x21, 0x21, 0x25, 0x27, 0x22, 0x20, 0x28,
    0x28, 0x22, 0x27, 0x21, 0x22, 0x23, 0x23, 0x27,
    0x25, 0x20, 0x20, 0x20, 0x20, 0x21, 0x21, 0x25,
    0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x27, 0x22,
    0x22, 0x20, 0x21, 0x29, 0x26, 0x24, 0x21, 0x24,
    0x27, 0x20, 0x22, 0x22, 0x27, 0x21, 0x21, 0x21,
    0x21, 0x21, 0x21, 0x21, 0x20, 0x21, 0x25, 0x26,
    0x20, 0x21, 0x21, 0x21, 0x27, 0x22, 0x22, 0x24,
    0x24, 0x27, 0x28, 0x27, 0x2a, 0x21, 0x20, 0x21,
    0x22, 0x28, 0x21, 0x21, 0x20, 0x21, 0x21, 0x20,
    0x20, 0x21, 0x20, 0x25, 0x21, 0x22, 0x22, 0x22,
    0x23, 0x23, 0x27, 0x21, 0x28, 0x22, 0x24, 0x29,
    0x21, 0x20, 0x20, 0x21, 0x21, 0x20, 0x21, 0x20,
    0x20, 0x20, 0x20, 0x20, 0x21, 0x21, 0x27, 0x23,
    0x22, 0x20, 0x20, 0x24, 0x25, 0x24, 0x20, 0x24,
    0x27, 0x20, 0x28, 0x22, 0x27, 0x21, 0x21, 0x20,
    0x20, 0x20, 0x20, 0x21, 0x21, 0x21, 0x20, 0x21,
    0x21, 0x21, 0x20, 0x20, 0x28, 0x23, 0x22, 0x24,
    0x26, 0x2a, 0x2a, 0x24, 0x20, 0x27, 0x24, 0x24,
    0x22, 0x23, 0x20, 0x21, 0x21, 0x20, 0x21, 0x25,
    0x21, 0x21, 0x20, 0x21, 0x26, 0x29, 0x28, 0x23,
    0x23, 0x23, 0x27, 0x21, 0x28, 0x24, 0x2a, 0x25,
    0x25, 0x21, 0x21, 0x20, 0x21, 0x21, 0x21, 0x21,
    0x21, 0x20, 0x21, 0x21, 0x20, 0x21, 0x27, 0x23,
    0x22, 0x24, 0x20, 0x27, 0x21, 0x27, 0x20, 0x21,
    0x20, 0x20, 0x22, 0x22, 0x24, 0x21, 0x20, 0x21,
    0x21, 0x21, 0x21, 0x20, 0x21, 0x21, 0x20, 0x21,
    0x20, 0x21, 0x20, 0x20, 0x22, 0x23, 0x28, 0x21,
    0x24, 0x24, 0x21, 0x27, 0x21, 0x27, 0x20, 0x20,
    0x22, 0x22, 0x20, 0x21, 0x21, 0x20, 0x20, 0x20,
    0x20, 0x20, 0x20, 0x21, 0x20, 0x25, 0x2a, 0x21,
    0x27, 0x27, 0x27, 0x25, 0x25, 0x2a, 0x2a, 0x2a,
    0x2a, 0x2a, 0x26, 0x25, 0x21, 0x20, 0x20, 0x20,
    0x21, 0x21, 0x21, 0x21, 0x21, 0x20, 0x28, 0x23,
    0x22, 0x24, 0x21, 0x27, 0x21, 0x27, 0x20, 0x20,
    0x24, 0x20, 0x23, 0x23, 0x27, 0x21, 0x21, 0x21,
    0x20, 0x20, 0x20, 0x20, 0x20, 0x21, 0x21, 0x20,
    0x21, 0x20, 0x21, 0x21, 0x28, 0x22, 0x22, 0x20,
    0x27, 0x27, 0x21, 0x27, 0x20, 0x24, 0x21, 0x27,
    0x23, 0x22, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
    0x20, 0x21, 0x21, 0x20, 0x20, 0x20, 0x21, 0x29,
    0x2a, 0x2a, 0x25, 0x2a, 0x2a, 0x2b, 0x2b, 0x2b,
    0x2b, 0x2b, 0x2a, 0x2a, 0x29, 0x21, 0x20, 0x21,
    0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x24, 0x22,
    0x22, 0x24, 0x20, 0x27, 0x21, 0x27, 0x24, 0x20,
    0x25, 0x20, 0x22, 0x23, 0x27, 0x21, 0x21, 0x20,
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#endif /* !__HAVE_ARCH_LINUX_LOGO */

#ifndef __HAVE_ARCH_LINUX_LOGOBW

unsigned char linux_logo_bw[] __initdata = {
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};

#endif /* !__HAVE_ARCH_LINUX_LOGOBW */

#ifndef __HAVE_ARCH_LINUX_LOGO16

unsigned char linux_logo16_red[] __initdata = {
    0x76, 0xd9, 0xff, 0xa5, 0x5d, 0x49, 0x02, 0x00,
    0xf5,
};

unsigned char linux_logo16_green[] __initdata = {
    0x80, 0xdd, 0xff, 0xad, 0x6e, 0x43, 0x02, 0x00,
    0xbd,
};

unsigned char linux_logo16_blue[] __initdata = {
    0x92, 0xe1, 0xff, 0xb7, 0x7d, 0x36, 0x04, 0x00,
    0x0c,
};

unsigned char linux_logo16[] __initdata = {
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    0x24, 0x20, 0x20, 0x24, 0x20, 0x21, 0x22, 0x21,
};

#endif /* !__HAVE_ARCH_LINUX_LOGO16 */

#else /* !INCLUDE_LINUX_LOGO_DATA */

/* prototypes only */
extern unsigned char linux_logo_red[];
extern unsigned char linux_logo_green[];
extern unsigned char linux_logo_blue[];
extern unsigned char linux_logo[];
extern unsigned char linux_logo_bw[];
extern unsigned char linux_logo16[];

#endif /* !INCLUDE_LINUX_LOGO_DATA */


------=_NextPart_000_006A_01C2325C.6FB63F70--


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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] linux_logo.h
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Hi Kenneth,

nice logo, but personally I don't like the HP-style background.
Couldn't you make a patch without any background pattern and just black instead ?

Greetings,
Helge

On Tuesday 23 July 2002 15:20, kenneth westelinck wrote:
> Hi all,
>
> The linux_logo.h that is available on the esiee site
> (http://pateam.esiee.fr/download.html) seems a little outdated. Here's a
> version that works with 2.4.18-pa56.
>
> regards,
>
> Kenneth



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From: Frank Alden Smith <falden@comcast.net>
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Subject: [parisc-linux] Bugzilla Bug  88691 galeon seg faults
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Please help,

I posted this Gnome Bugzilla Bug 88691 about repeated galeon seg faults,
but now I am wondering if this list would be better able to provide
assistance. The problem arises on Linux version 2.4.18-pa56, galeon
1.2.5-1, and mozilla 1.0.0-3.

For complete details please go to:
http://bugzilla.gnome.org/show_bug.cgi?id=88691

Take care,
frank

PS I am sorry if I am not following the proper protocol(s), my only
excuse is this is my first bug report.



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Thank you very much for pointing me to the files.  Both the .joel and
.ggg files worked great!  Do you know if you can run X in 16 or 24 bpp?
8 bpp seems to work just fine, but it would be nice to have at least 16
bpp.

Thanks again,

Mike

On Mon, Jul 22, 2002 at 07:02:59PM -0600, Grant Grundler wrote:
> Michael Madden wrote:
> > Has anyone gotten X to work with the recently released Debian 3.0 on 
> > a PA-RISC machine?  I have a B132L+ that I've installed Debian 3.0 on,
> > but I cannot get X setup correctly.
> 
> 	ftp://ftp.parisc-linux.org/kernels/b180
> 
> Has one XF86Config-4 (.joel) and will get another from my b180
> if it's any different.
> 
> Oh, and you've got too many bit depths listed in your XF86Config-4.
> I don't know why, but the X11 server can only tolerated one.
> Use what "fbset -i" output provides.
> 
> grant


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>From what I know, there is a hardware limitation on the B132's graphic
sub-system that doesn't allow it to do more than 8 bpp.

I've got a B132L+ and I have to agree that Debian3.0 works really well on
it.

Cheers,
Thomas.

-----Original Message-----
From: madden@maddentechnologies.com [mailto:madden@maddentechnologies.com]
Sent: Tuesday, July 23, 2002 1:08 PM
To: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] XFree86 on B132L using Debian 3.0

Thank you very much for pointing me to the files.  Both the .joel and
.ggg files worked great!  Do you know if you can run X in 16 or 24 bpp?
8 bpp seems to work just fine, but it would be nice to have at least 16
bpp.

Thanks again,

Mike

On Mon, Jul 22, 2002 at 07:02:59PM -0600, Grant Grundler wrote:
> Michael Madden wrote:
> > Has anyone gotten X to work with the recently released Debian 3.0 on
> > a PA-RISC machine?  I have a B132L+ that I've installed Debian 3.0 on,
> > but I cannot get X setup correctly.
>
>       ftp://ftp.parisc-linux.org/kernels/b180
>
> Has one XF86Config-4 (.joel) and will get another from my b180
> if it's any different.
>
> Oh, and you've got too many bit depths listed in your XF86Config-4.
> I don't know why, but the X11 server can only tolerated one.
> Use what "fbset -i" output provides.
>
> grant
_______________________________________________
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parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.5 kernel crash on a500 -- help needed
Date: Tue, 23 Jul 2002 23:53:44 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:15626

(this reference was copied from the cvs list w.r.t our 2.5 merge)

In reference to a message from Randolph Chung, dated Jul 22:
> > init/main.c
> > add parisc_init back into the init sequence.... this causes the machine to crash though, need to investigate if the call is in the right place

without parisc_init(), i'm getting this on a500... debugging
output should be pretty much self-explanatory...

POSIX conformance testing by UNIFIX
before init_idle
after init_idle
Starting rest_init
Starting kernel thread 0x0000000010479180, arg 0x0000000000000000, flags 69120
Return from kernel_thread; pid = 352186432
After kernel_thread
Calling cpu_idle
schedule: need_resched
prev->stat = 0
schedule: switch_tasks
context_switch: mm = 0x0000000014fdf078, oldmm = 0x00000000103ce968
doing switch_to; prev=0x0,0x0, next=0x104d0040,0x104d0070
-> (the prev/next numbers are reg->iaoq[0] and reg->kpc)
-> there's another printk() right after the switch_to() call, i don't
   see that...

At this point, the machine hpmcs. The hpmc output is not very helpful,
and probably wrong. it points the crash to printk (both iaoq and
gr2 point to printk, but different locations)

I'm not sure whether this is a bug inside our switch_to code (looks
correct...) or if the switched to task is crashing. It seems to me the
only thing in the runqueue at this point should be the init thread, 
right?  but i don't get the printk() output from init.....

any hints on how to debug this?

baffled....
randolph

p.s. for those of you wondering, we do have a linkable 2.5 kernel now
(at least in some configurations). it doesn't come near to booting yet,
but willy/helge/richard/grant and others are busy working on it :)
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Path: news.gmane.org!not-for-mail
From: "kenneth westelinck" <kennywest1@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] unresoved symbols when doing a make modules_install
Date: Wed, 24 Jul 2002 10:33:22 +0200
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Hi again,

I don't understand it either. I've been compiling kernels for my 486 for
quite a while now, and I never received such an error. So I'm not quite sure
where to look. I thought I messed things up, so yesterday I did a "make
mrproper" to start all over again. Still no joy :(
Does someone have an idea where I should look?
Attached to this mail you can find my config.
Thanks.


regards,

Kenneth

----- Original Message -----
From: "Matthew Wilcox" <willy@debian.org>
To: "kenneth westelinck" <kennywest1@hotmail.com>
Cc: <parisc-linux@parisc-linux.org>
Sent: Tuesday, July 23, 2002 4:04 PM
Subject: Re: [parisc-linux] unresoved symbols when doing a make
modules_install


> On Tue, Jul 23, 2002 at 03:51:57PM +0200, kenneth westelinck wrote:
> > Today I "baked" myself a new kernel (2.4.18-pa56). After upgrading my
box
> > (using apt-get), INIT was dying upon startup with an "unaligned access"
> > error. Anyway, all is working well (even the soft-power button), but I
am
> > getting an "unresolved symbols"-error when doing a "make
modules_install"
> > (see attached file). Yes, I copied the System.map to
> > /boot/System.map-2.4.18-pa56 and created a symbolic link to this file.
Any
> > ideas?
>
> i'm baffled.  we prototype, define and EXPORT_SYMBOL outs[bwl].  i can't
> see why you'd get this error.
>
> --
> Revolutions do not require corporate support.
>

------=_NextPart_000_001C_01C232FD.892170A0
Content-Type: application/octet-stream;
	name=".config"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename=".config"

#=0A=
# Automatically generated by make menuconfig: don't edit=0A=
#=0A=
CONFIG_PARISC=3Dy=0A=
# CONFIG_UID16 is not set=0A=
CONFIG_RWSEM_GENERIC_SPINLOCK=3Dy=0A=
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set=0A=
=0A=
#=0A=
# Code maturity level options=0A=
#=0A=
CONFIG_EXPERIMENTAL=3Dy=0A=
=0A=
#=0A=
# Loadable module support=0A=
#=0A=
CONFIG_MODULES=3Dy=0A=
# CONFIG_MODVERSIONS is not set=0A=
CONFIG_KMOD=3Dy=0A=
=0A=
#=0A=
# Processor type=0A=
#=0A=
CONFIG_PA7100=3Dy=0A=
# CONFIG_PA7200 is not set=0A=
# CONFIG_PA7100LC is not set=0A=
# CONFIG_PA8X00 is not set=0A=
CONFIG_PA11=3Dy=0A=
=0A=
#=0A=
# General options=0A=
#=0A=
# CONFIG_SMP is not set=0A=
CONFIG_CHASSIS_LCD_LED=3Dy=0A=
# CONFIG_KWDB is not set=0A=
CONFIG_IOMMU_CCIO=3Dy=0A=
CONFIG_GSC=3Dy=0A=
CONFIG_GSC_LASI=3Dy=0A=
CONFIG_GSC_WAX=3Dy=0A=
# CONFIG_EISA is not set=0A=
# CONFIG_ISA is not set=0A=
# CONFIG_PCI is not set=0A=
=0A=
#=0A=
# General setup=0A=
#=0A=
# CONFIG_HOTPLUG is not set=0A=
CONFIG_NET=3Dy=0A=
CONFIG_SYSVIPC=3Dy=0A=
# CONFIG_BSD_PROCESS_ACCT is not set=0A=
CONFIG_SYSCTL=3Dy=0A=
CONFIG_KCORE_ELF=3Dy=0A=
CONFIG_BINFMT_ELF=3Dy=0A=
CONFIG_BINFMT_SOM=3Dy=0A=
# CONFIG_BINFMT_MISC is not set=0A=
# CONFIG_PM is not set=0A=
=0A=
#=0A=
# Parallel port support=0A=
#=0A=
CONFIG_PARPORT=3Dy=0A=
CONFIG_PARPORT_PC=3Dy=0A=
CONFIG_PARPORT_PC_CML1=3Dy=0A=
# CONFIG_PARPORT_SERIAL is not set=0A=
# CONFIG_PARPORT_PC_FIFO is not set=0A=
# CONFIG_PARPORT_PC_SUPERIO is not set=0A=
# CONFIG_PARPORT_AMIGA is not set=0A=
# CONFIG_PARPORT_MFC3 is not set=0A=
# CONFIG_PARPORT_ATARI is not set=0A=
CONFIG_PARPORT_GSC=3Dy=0A=
# CONFIG_PARPORT_SUNBPP is not set=0A=
# CONFIG_PARPORT_OTHER is not set=0A=
# CONFIG_PARPORT_1284 is not set=0A=
=0A=
#=0A=
# Block devices=0A=
#=0A=
# CONFIG_BLK_DEV_FD is not set=0A=
# CONFIG_BLK_DEV_XD is not set=0A=
# CONFIG_PARIDE is not set=0A=
# CONFIG_BLK_CPQ_DA is not set=0A=
# CONFIG_BLK_CPQ_CISS_DA is not set=0A=
# CONFIG_BLK_DEV_DAC960 is not set=0A=
CONFIG_BLK_DEV_LOOP=3Dy=0A=
# CONFIG_BLK_DEV_NBD is not set=0A=
# CONFIG_BLK_DEV_RAM is not set=0A=
# CONFIG_BLK_DEV_INITRD is not set=0A=
=0A=
#=0A=
# Multi-device support (RAID and LVM)=0A=
#=0A=
# CONFIG_MD is not set=0A=
# CONFIG_BLK_DEV_MD is not set=0A=
# CONFIG_MD_LINEAR is not set=0A=
# CONFIG_MD_RAID0 is not set=0A=
# CONFIG_MD_RAID1 is not set=0A=
# CONFIG_MD_RAID5 is not set=0A=
# CONFIG_MD_MULTIPATH is not set=0A=
# CONFIG_BLK_DEV_LVM is not set=0A=
=0A=
#=0A=
# Networking options=0A=
#=0A=
CONFIG_PACKET=3Dy=0A=
CONFIG_PACKET_MMAP=3Dy=0A=
CONFIG_NETLINK_DEV=3Dy=0A=
# CONFIG_NETFILTER is not set=0A=
CONFIG_FILTER=3Dy=0A=
CONFIG_UNIX=3Dy=0A=
CONFIG_INET=3Dy=0A=
CONFIG_IP_MULTICAST=3Dy=0A=
# CONFIG_IP_ADVANCED_ROUTER is not set=0A=
# CONFIG_IP_PNP is not set=0A=
# CONFIG_NET_IPIP is not set=0A=
# CONFIG_NET_IPGRE is not set=0A=
# CONFIG_IP_MROUTE is not set=0A=
# CONFIG_ARPD is not set=0A=
# CONFIG_INET_ECN is not set=0A=
# CONFIG_SYN_COOKIES is not set=0A=
# CONFIG_IPV6 is not set=0A=
# CONFIG_KHTTPD is not set=0A=
# CONFIG_ATM is not set=0A=
# CONFIG_VLAN_8021Q is not set=0A=
# CONFIG_IPX is not set=0A=
# CONFIG_ATALK is not set=0A=
# CONFIG_DECNET is not set=0A=
# CONFIG_BRIDGE is not set=0A=
# CONFIG_X25 is not set=0A=
# CONFIG_LAPB is not set=0A=
# CONFIG_LLC is not set=0A=
# CONFIG_NET_DIVERT is not set=0A=
# CONFIG_ECONET is not set=0A=
# CONFIG_WAN_ROUTER is not set=0A=
# CONFIG_NET_FASTROUTE is not set=0A=
# CONFIG_NET_HW_FLOWCONTROL is not set=0A=
=0A=
#=0A=
# QoS and/or fair queueing=0A=
#=0A=
# CONFIG_NET_SCHED is not set=0A=
=0A=
#=0A=
# SCSI support=0A=
#=0A=
CONFIG_SCSI=3Dy=0A=
CONFIG_BLK_DEV_SD=3Dy=0A=
CONFIG_SD_EXTRA_DEVS=3D40=0A=
# CONFIG_CHR_DEV_ST is not set=0A=
# CONFIG_CHR_DEV_OSST is not set=0A=
# CONFIG_BLK_DEV_SR is not set=0A=
CONFIG_CHR_DEV_SG=3Dy=0A=
# CONFIG_SCSI_DEBUG_QUEUES is not set=0A=
# CONFIG_SCSI_MULTI_LUN is not set=0A=
# CONFIG_SCSI_CONSTANTS is not set=0A=
# CONFIG_SCSI_LOGGING is not set=0A=
=0A=
#=0A=
# SCSI low-level drivers=0A=
#=0A=
# CONFIG_SCSI_7000FASST is not set=0A=
# CONFIG_SCSI_ACARD is not set=0A=
# CONFIG_SCSI_AHA152X is not set=0A=
# CONFIG_SCSI_AHA1542 is not set=0A=
# CONFIG_SCSI_AHA1740 is not set=0A=
# CONFIG_SCSI_AACRAID is not set=0A=
# CONFIG_SCSI_AIC7XXX is not set=0A=
# CONFIG_SCSI_AIC7XXX_OLD is not set=0A=
# CONFIG_SCSI_DPT_I2O is not set=0A=
# CONFIG_SCSI_ADVANSYS is not set=0A=
# CONFIG_SCSI_IN2000 is not set=0A=
# CONFIG_SCSI_AM53C974 is not set=0A=
# CONFIG_SCSI_MEGARAID is not set=0A=
# CONFIG_SCSI_BUSLOGIC is not set=0A=
# CONFIG_SCSI_DMX3191D is not set=0A=
# CONFIG_SCSI_DTC3280 is not set=0A=
# CONFIG_SCSI_EATA is not set=0A=
# CONFIG_SCSI_EATA_DMA is not set=0A=
# CONFIG_SCSI_EATA_PIO is not set=0A=
# CONFIG_SCSI_FUTURE_DOMAIN is not set=0A=
# CONFIG_SCSI_GDTH is not set=0A=
# CONFIG_SCSI_GENERIC_NCR5380 is not set=0A=
# CONFIG_SCSI_INITIO is not set=0A=
# CONFIG_SCSI_INIA100 is not set=0A=
CONFIG_SCSI_PPA=3Dm=0A=
# CONFIG_SCSI_IMM is not set=0A=
# CONFIG_SCSI_IZIP_EPP16 is not set=0A=
# CONFIG_SCSI_IZIP_SLOW_CTR is not set=0A=
# CONFIG_SCSI_NCR53C406A is not set=0A=
CONFIG_SCSI_LASI700=3Dy=0A=
CONFIG_53C700_MEM_MAPPED=3Dy=0A=
CONFIG_53C700_LE_ON_BE=3Dy=0A=
CONFIG_53C700_USE_CONSISTENT=3Dy=0A=
# CONFIG_SCSI_NCR53C7xx is not set=0A=
# CONFIG_ASK_ZALON is not set=0A=
# CONFIG_ASK_NCR53C8XX is not set=0A=
# CONFIG_ASK_SYM53C8XX is not set=0A=
# CONFIG_SCSI_ZALON is not set=0A=
# CONFIG_SCSI_PAS16 is not set=0A=
# CONFIG_SCSI_PCI2000 is not set=0A=
# CONFIG_SCSI_PCI2220I is not set=0A=
# CONFIG_SCSI_PSI240I is not set=0A=
# CONFIG_SCSI_QLOGIC_FAS is not set=0A=
# CONFIG_SCSI_SIM710 is not set=0A=
# CONFIG_SCSI_SYM53C416 is not set=0A=
# CONFIG_SCSI_T128 is not set=0A=
# CONFIG_SCSI_U14_34F is not set=0A=
# CONFIG_SCSI_DEBUG is not set=0A=
=0A=
#=0A=
# Network device support=0A=
#=0A=
CONFIG_NETDEVICES=3Dy=0A=
=0A=
#=0A=
# ARCnet devices=0A=
#=0A=
# CONFIG_ARCNET is not set=0A=
# CONFIG_DUMMY is not set=0A=
# CONFIG_BONDING is not set=0A=
# CONFIG_EQUALIZER is not set=0A=
# CONFIG_TUN is not set=0A=
# CONFIG_ETHERTAP is not set=0A=
=0A=
#=0A=
# Ethernet (10 or 100Mbit)=0A=
#=0A=
CONFIG_NET_ETHERNET=3Dy=0A=
CONFIG_LASI_82596=3Dy=0A=
# CONFIG_SUNLANCE is not set=0A=
# CONFIG_SUNBMAC is not set=0A=
# CONFIG_SUNQE is not set=0A=
# CONFIG_SUNGEM is not set=0A=
# CONFIG_NET_VENDOR_3COM is not set=0A=
# CONFIG_LANCE is not set=0A=
# CONFIG_NET_VENDOR_SMC is not set=0A=
# CONFIG_NET_VENDOR_RACAL is not set=0A=
# CONFIG_NET_ISA is not set=0A=
# CONFIG_NET_PCI is not set=0A=
# CONFIG_NET_POCKET is not set=0A=
=0A=
#=0A=
# Ethernet (1000 Mbit)=0A=
#=0A=
# CONFIG_ACENIC is not set=0A=
# CONFIG_DL2K is not set=0A=
# CONFIG_MYRI_SBUS is not set=0A=
# CONFIG_NS83820 is not set=0A=
# CONFIG_HAMACHI is not set=0A=
# CONFIG_YELLOWFIN is not set=0A=
# CONFIG_SK98LIN is not set=0A=
# CONFIG_FDDI is not set=0A=
# CONFIG_HIPPI is not set=0A=
# CONFIG_PLIP is not set=0A=
# CONFIG_PPP is not set=0A=
# CONFIG_SLIP is not set=0A=
=0A=
#=0A=
# Wireless LAN (non-hamradio)=0A=
#=0A=
# CONFIG_NET_RADIO is not set=0A=
=0A=
#=0A=
# Token Ring devices=0A=
#=0A=
# CONFIG_TR is not set=0A=
# CONFIG_NET_FC is not set=0A=
# CONFIG_RCPCI is not set=0A=
# CONFIG_SHAPER is not set=0A=
=0A=
#=0A=
# Wan interfaces=0A=
#=0A=
# CONFIG_WAN is not set=0A=
=0A=
#=0A=
# Input core support=0A=
#=0A=
# CONFIG_INPUT is not set=0A=
# CONFIG_INPUT_KEYBDEV is not set=0A=
# CONFIG_INPUT_MOUSEDEV is not set=0A=
# CONFIG_INPUT_JOYDEV is not set=0A=
# CONFIG_INPUT_EVDEV is not set=0A=
=0A=
#=0A=
# Character devices=0A=
#=0A=
CONFIG_VT=3Dy=0A=
CONFIG_VT_CONSOLE=3Dy=0A=
CONFIG_GSC_PS2=3Dy=0A=
CONFIG_SERIAL=3Dy=0A=
CONFIG_SERIAL_CONSOLE=3Dy=0A=
CONFIG_SERIAL_GSC=3Dy=0A=
# CONFIG_SERIAL_EXTENDED is not set=0A=
# CONFIG_SERIAL_NONSTANDARD is not set=0A=
CONFIG_UNIX98_PTYS=3Dy=0A=
CONFIG_UNIX98_PTY_COUNT=3D256=0A=
CONFIG_PRINTER=3Dy=0A=
# CONFIG_LP_CONSOLE is not set=0A=
# CONFIG_PPDEV is not set=0A=
=0A=
#=0A=
# I2C support=0A=
#=0A=
# CONFIG_I2C is not set=0A=
=0A=
#=0A=
# Mice=0A=
#=0A=
# CONFIG_BUSMOUSE is not set=0A=
CONFIG_MOUSE=3Dy=0A=
CONFIG_PSMOUSE=3Dy=0A=
# CONFIG_82C710_MOUSE is not set=0A=
# CONFIG_PC110_PAD is not set=0A=
=0A=
#=0A=
# Joysticks=0A=
#=0A=
# CONFIG_INPUT_GAMEPORT is not set=0A=
# CONFIG_QIC02_TAPE is not set=0A=
=0A=
#=0A=
# Watchdog Cards=0A=
#=0A=
# CONFIG_WATCHDOG is not set=0A=
CONFIG_GENRTC=3Dy=0A=
# CONFIG_INTEL_RNG is not set=0A=
# CONFIG_NVRAM is not set=0A=
# CONFIG_RTC is not set=0A=
# CONFIG_DTLK is not set=0A=
# CONFIG_R3964 is not set=0A=
# CONFIG_APPLICOM is not set=0A=
=0A=
#=0A=
# Ftape, the floppy tape device driver=0A=
#=0A=
# CONFIG_FTAPE is not set=0A=
# CONFIG_AGP is not set=0A=
# CONFIG_DRM is not set=0A=
=0A=
#=0A=
# HIL support=0A=
#=0A=
=0A=
#=0A=
# Multimedia devices=0A=
#=0A=
# CONFIG_VIDEO_DEV is not set=0A=
=0A=
#=0A=
# File systems=0A=
#=0A=
CONFIG_QUOTA=3Dy=0A=
# CONFIG_AUTOFS_FS is not set=0A=
# CONFIG_AUTOFS4_FS is not set=0A=
# CONFIG_REISERFS_FS is not set=0A=
# CONFIG_REISERFS_CHECK is not set=0A=
# CONFIG_REISERFS_PROC_INFO is not set=0A=
# CONFIG_ADFS_FS is not set=0A=
# CONFIG_ADFS_FS_RW is not set=0A=
# CONFIG_AFFS_FS is not set=0A=
# CONFIG_HFS_FS is not set=0A=
# CONFIG_BFS_FS is not set=0A=
# CONFIG_EXT3_FS is not set=0A=
# CONFIG_JBD is not set=0A=
# CONFIG_JBD_DEBUG is not set=0A=
CONFIG_FAT_FS=3Dy=0A=
CONFIG_MSDOS_FS=3Dy=0A=
# CONFIG_UMSDOS_FS is not set=0A=
CONFIG_VFAT_FS=3Dy=0A=
# CONFIG_EFS_FS is not set=0A=
# CONFIG_JFFS_FS is not set=0A=
# CONFIG_JFFS2_FS is not set=0A=
# CONFIG_CRAMFS is not set=0A=
# CONFIG_TMPFS is not set=0A=
# CONFIG_RAMFS is not set=0A=
# CONFIG_ISO9660_FS is not set=0A=
# CONFIG_JOLIET is not set=0A=
# CONFIG_ZISOFS is not set=0A=
# CONFIG_MINIX_FS is not set=0A=
# CONFIG_VXFS_FS is not set=0A=
# CONFIG_NTFS_FS is not set=0A=
# CONFIG_NTFS_RW is not set=0A=
# CONFIG_HPFS_FS is not set=0A=
CONFIG_PROC_FS=3Dy=0A=
# CONFIG_DEVFS_FS is not set=0A=
# CONFIG_DEVFS_MOUNT is not set=0A=
# CONFIG_DEVFS_DEBUG is not set=0A=
CONFIG_DEVPTS_FS=3Dy=0A=
# CONFIG_QNX4FS_FS is not set=0A=
# CONFIG_QNX4FS_RW is not set=0A=
# CONFIG_ROMFS_FS is not set=0A=
CONFIG_EXT2_FS=3Dy=0A=
# CONFIG_SYSV_FS is not set=0A=
# CONFIG_UDF_FS is not set=0A=
# CONFIG_UDF_RW is not set=0A=
# CONFIG_UFS_FS is not set=0A=
# CONFIG_UFS_FS_WRITE is not set=0A=
=0A=
#=0A=
# Network File Systems=0A=
#=0A=
# CONFIG_CODA_FS is not set=0A=
# CONFIG_INTERMEZZO_FS is not set=0A=
CONFIG_NFS_FS=3Dy=0A=
CONFIG_NFS_V3=3Dy=0A=
# CONFIG_ROOT_NFS is not set=0A=
CONFIG_NFSD=3Dy=0A=
CONFIG_NFSD_V3=3Dy=0A=
CONFIG_SUNRPC=3Dy=0A=
CONFIG_LOCKD=3Dy=0A=
CONFIG_LOCKD_V4=3Dy=0A=
# CONFIG_SMB_FS is not set=0A=
# CONFIG_NCP_FS is not set=0A=
# CONFIG_NCPFS_PACKET_SIGNING is not set=0A=
# CONFIG_NCPFS_IOCTL_LOCKING is not set=0A=
# CONFIG_NCPFS_STRONG is not set=0A=
# CONFIG_NCPFS_NFS_NS is not set=0A=
# CONFIG_NCPFS_OS2_NS is not set=0A=
# CONFIG_NCPFS_SMALLDOS is not set=0A=
# CONFIG_NCPFS_NLS is not set=0A=
# CONFIG_NCPFS_EXTRAS is not set=0A=
# CONFIG_ZISOFS_FS is not set=0A=
# CONFIG_ZLIB_FS_INFLATE is not set=0A=
=0A=
#=0A=
# Partition Types=0A=
#=0A=
# CONFIG_PARTITION_ADVANCED is not set=0A=
CONFIG_MSDOS_PARTITION=3Dy=0A=
# CONFIG_SMB_NLS is not set=0A=
CONFIG_NLS=3Dy=0A=
=0A=
#=0A=
# Native Language Support=0A=
#=0A=
CONFIG_NLS_DEFAULT=3D"iso8859-1"=0A=
# CONFIG_NLS_CODEPAGE_437 is not set=0A=
# CONFIG_NLS_CODEPAGE_737 is not set=0A=
# CONFIG_NLS_CODEPAGE_775 is not set=0A=
# CONFIG_NLS_CODEPAGE_850 is not set=0A=
# CONFIG_NLS_CODEPAGE_852 is not set=0A=
# CONFIG_NLS_CODEPAGE_855 is not set=0A=
# CONFIG_NLS_CODEPAGE_857 is not set=0A=
# CONFIG_NLS_CODEPAGE_860 is not set=0A=
# CONFIG_NLS_CODEPAGE_861 is not set=0A=
# CONFIG_NLS_CODEPAGE_862 is not set=0A=
# CONFIG_NLS_CODEPAGE_863 is not set=0A=
# CONFIG_NLS_CODEPAGE_864 is not set=0A=
# CONFIG_NLS_CODEPAGE_865 is not set=0A=
# CONFIG_NLS_CODEPAGE_866 is not set=0A=
# CONFIG_NLS_CODEPAGE_869 is not set=0A=
# CONFIG_NLS_CODEPAGE_936 is not set=0A=
# CONFIG_NLS_CODEPAGE_950 is not set=0A=
# CONFIG_NLS_CODEPAGE_932 is not set=0A=
# CONFIG_NLS_CODEPAGE_949 is not set=0A=
# CONFIG_NLS_CODEPAGE_874 is not set=0A=
# CONFIG_NLS_ISO8859_8 is not set=0A=
# CONFIG_NLS_CODEPAGE_1250 is not set=0A=
# CONFIG_NLS_CODEPAGE_1251 is not set=0A=
# CONFIG_NLS_ISO8859_1 is not set=0A=
# CONFIG_NLS_ISO8859_2 is not set=0A=
# CONFIG_NLS_ISO8859_3 is not set=0A=
# CONFIG_NLS_ISO8859_4 is not set=0A=
# CONFIG_NLS_ISO8859_5 is not set=0A=
# CONFIG_NLS_ISO8859_6 is not set=0A=
# CONFIG_NLS_ISO8859_7 is not set=0A=
# CONFIG_NLS_ISO8859_9 is not set=0A=
# CONFIG_NLS_ISO8859_13 is not set=0A=
# CONFIG_NLS_ISO8859_14 is not set=0A=
# CONFIG_NLS_ISO8859_15 is not set=0A=
# CONFIG_NLS_KOI8_R is not set=0A=
# CONFIG_NLS_KOI8_U is not set=0A=
# CONFIG_NLS_UTF8 is not set=0A=
=0A=
#=0A=
# Console drivers=0A=
#=0A=
=0A=
#=0A=
# Frame-buffer support=0A=
#=0A=
CONFIG_FB=3Dy=0A=
CONFIG_DUMMY_CONSOLE=3Dy=0A=
# CONFIG_FB_CYBER2000 is not set=0A=
CONFIG_FB_STI=3Dy=0A=
# CONFIG_FB_VIRTUAL is not set=0A=
# CONFIG_FBCON_ADVANCED is not set=0A=
CONFIG_FBCON_CFB8=3Dy=0A=
CONFIG_FBCON_CFB32=3Dy=0A=
CONFIG_FBCON_STI=3Dy=0A=
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set=0A=
# CONFIG_FBCON_FONTS is not set=0A=
CONFIG_FONT_8x8=3Dy=0A=
CONFIG_FONT_8x16=3Dy=0A=
CONFIG_STI_CONSOLE=3Dy=0A=
CONFIG_DUMMY_CONSOLE=3Dy=0A=
CONFIG_DUMMY_CONSOLE=3Dy=0A=
CONFIG_FBCON=3Dy=0A=
CONFIG_FBCON_FONT=3Dy=0A=
CONFIG_FONT_8x8=3Dy=0A=
CONFIG_FONT_8x16=3Dy=0A=
CONFIG_FONT_6x11=3Dy=0A=
CONFIG_FONT_SUN12x22=3Dy=0A=
=0A=
#=0A=
# Sound=0A=
#=0A=
CONFIG_SOUND=3Dy=0A=
# CONFIG_SOUND_BT878 is not set=0A=
# CONFIG_SOUND_CMPCI is not set=0A=
# CONFIG_SOUND_EMU10K1 is not set=0A=
# CONFIG_MIDI_EMU10K1 is not set=0A=
# CONFIG_SOUND_FUSION is not set=0A=
# CONFIG_SOUND_CS4281 is not set=0A=
# CONFIG_SOUND_ES1370 is not set=0A=
# CONFIG_SOUND_ES1371 is not set=0A=
# CONFIG_SOUND_ESSSOLO1 is not set=0A=
# CONFIG_SOUND_MAESTRO is not set=0A=
# CONFIG_SOUND_MAESTRO3 is not set=0A=
# CONFIG_SOUND_ICH is not set=0A=
CONFIG_SOUND_HARMONY=3Dy=0A=
# CONFIG_SOUND_RME96XX is not set=0A=
# CONFIG_SOUND_SONICVIBES is not set=0A=
# CONFIG_SOUND_TRIDENT is not set=0A=
# CONFIG_SOUND_MSNDCLAS is not set=0A=
# CONFIG_SOUND_MSNDPIN is not set=0A=
# CONFIG_SOUND_VIA82CXXX is not set=0A=
# CONFIG_MIDI_VIA82CXXX is not set=0A=
# CONFIG_SOUND_OSS is not set=0A=
# CONFIG_SOUND_TVMIXER is not set=0A=
=0A=
#=0A=
# Kernel hacking=0A=
#=0A=
CONFIG_MAGIC_SYSRQ=3Dy=0A=

------=_NextPart_000_001C_01C232FD.892170A0--


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From: Stephan Trajkoff <stephan@itp.bg>
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Subject: [parisc-linux] can I use 2.5.x kernels for PARISC 32 bit
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Today I downloaded 2.5.27 kernel, I see that there is support for parisc 
architecture
Anybody tried this kernel or another 2.5.x version?




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From: Stephan Trajkoff <stephan@itp.bg>
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Subject: [parisc-linux] K class server
Date: Wed, 24 Jul 2002 11:55:27 +0300
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Hello,
     My K class server K210/819 working perfectly with 2.4.18-pa54
Server was up 6 days without hangs or any problems. RAID 1 working 
perfectly. After that power was off for 5 mins and my UPS ran out:)
I think that this K210 is perfect server!:)
I have FDDI 100mbit on this, can I use it or there is no drivers yet?
I don't know the model of this FDDI, I think that the mark is HP...





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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] can I use 2.5.x kernels for PARISC 32 bit
Date: Wed, 24 Jul 2002 13:21:07 +0100
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On Wed, Jul 24, 2002 at 11:50:30AM +0300, Stephan Trajkoff wrote:
> Today I downloaded 2.5.27 kernel, I see that there is support for parisc 
> architecture
> Anybody tried this kernel or another 2.5.x version?

bwahahaha.  the code in the 2.5.27 tree has been there since 2.4.0-test10
(or thereabouts).  it is heavily bitrotten, not maintained, and we've
moved on significantly since then (it's over 18 months since that code
went in).

you may or may not have noticed that we just started trying to merge
our code with 2.5 in our CVS tree.  this code is currently at the `we're
happy if it dies trying to start init' stage.

-- 
Revolutions do not require corporate support.


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From: joel.soete@freebel.net
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Subject: [parisc-linux] K-2.5.26-pa0: NCR5380.c ?
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In NCR5380.c failled to compile because 'io_request_lock' undeclare.

'&io_request_lock' seems to became 'q->queue_lock' (include/linux/nbd.h)(with
request_queue_t *q).
Is it right?

Joel


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] K-2.5.26-pa0: NCR5380.c ?
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On Wed, 2002-07-24 at 13:32, joel.soete@freebel.net wrote:
> In NCR5380.c failled to compile because 'io_request_lock' undeclare.
> 
> '&io_request_lock' seems to became 'q->queue_lock' (include/linux/nbd.h)(with
> request_queue_t *q).
> Is it right?

In the general case for NCR5380 no. There is a lot more that needs to be
fixed to make that driver work on 2.5



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Subject: Re: [parisc-linux] K-2.5.26-pa0: NCR5380.c ?
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On Wed, Jul 24, 2002 at 02:32:01PM +0200, joel.soete@freebel.net wrote:
> In NCR5380.c failled to compile because 'io_request_lock' undeclare.

why are you trying to compile this driver?  do you _really_ have an NCR5380?

-- 
Revolutions do not require corporate support.


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 uthtok
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Hi All,

I have setup pam.d/rlogind pam.d/login in such way that I could rlogin to my
palinux machine.

All is configured ok (since it works sometimes).

Here is a login attempt.

iws1pb05:/home/phi> rlogin iws1pb02
Connection closed.
iws1pb05:/home/phi> rlogin iws1pb02
Kill is %.
Interrupt is control-C (^C).
iws1pb02:/home/phi>

After some attempt it works, I don't understand what make it fail several time
before success.

Here is the log of this session

Jul 24 15:38:33 iws1pb02 pam_rhosts_auth[7889]: allowed to phi@iws1pb05 as phi
Jul 24 15:38:36 iws1pb02 PAM_unix[7672]: (cron) session closed for user mail
Jul 24 15:38:36 iws1pb02 rlogind[7919]: PAM unable to resolve symbol:
pam_sm_cha
uthtok
Jul 24 15:38:36 iws1pb02 rlogind[7919]: PAM unable to resolve symbol:
pam_sm_cha
uthtok
Jul 24 15:38:36 iws1pb02 pam_rhosts_auth[7919]: allowed to phi@iws1pb05 as phi
Jul 24 15:38:37 iws1pb02 PAM_unix[7923]: (login) session opened for user phi
by
(uid=0)

Sounds like rlogind is not able to always map pam_sm_chauthtok, when it
succeed, the login session is opened.

Dunno if the order have importance here, sounds like when it fail the
pam_rhosts_auth[7889]: allowed to phi@iws1pb05 came first while when it fail
it cam after.

Any ideas
Thanx in advance
Phi


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Subject: Re: [parisc-linux] K-2.5.26-pa0: NCR5380.c ?
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Quoting Matthew Wilcox <willy@debian.org>:

> On Wed, Jul 24, 2002 at 02:32:01PM +0200, joel.soete@freebel.net wrote:
> > In NCR5380.c failled to compile because 'io_request_lock' undeclare.
> 
> why are you trying to compile this driver?  do you _really_ have an
> NCR5380?
> 
> -- 
> Revolutions do not require corporate support.
> 
inheritance from config-2.4.17-32 (of Debian kernel image of this time) :)

Too lasy to analyse exactly what I need for my 712, b180, b2000 I continue to
use it.

Joel


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Quoting Alan Cox <alan@lxorguk.ukuu.org.uk>:

> On Wed, 2002-07-24 at 13:32, joel.soete@freebel.net wrote:
> > In NCR5380.c failled to compile because 'io_request_lock' undeclare.
> > 
> > '&io_request_lock' seems to became 'q->queue_lock'
> (include/linux/nbd.h)(with
> > request_queue_t *q).
> > Is it right?
> 
> In the general case for NCR5380 no. There is a lot more that needs to
> be
> fixed to make that driver work on 2.5
> 
> 

Well it seems that I do not realy need it right now. So I will simply try to use
make oldconfig (just a test).

Joel


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phi wrote:
> Jul 24 15:38:36 iws1pb02 rlogind[7919]: PAM unable to resolve symbol:
> pam_sm_chauthtok

This stinks alot like the other d-cache issues we've seen.
(eg syslogd faulting at boot time)

Which system model is this happening on? (/me guesses J5000 or PA2.0 K-class)

I don't know where the problem is though.

grant


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On Wed, Jul 24, 2002 at 10:33:22AM +0200, kenneth westelinck wrote:
> > i'm baffled.  we prototype, define and EXPORT_SYMBOL outs[bwl].  i can't
> > see why you'd get this error.

But only if CONFIG_PCI or CONFIG_ISA, kenneth has neither in his config.

Richard



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Grant Grundler wrote:
> 
> phi wrote:
> > Jul 24 15:38:36 iws1pb02 rlogind[7919]: PAM unable to resolve symbol:
> > pam_sm_chauthtok
> 
> This stinks alot like the other d-cache issues we've seen.
> (eg syslogd faulting at boot time)

Ouch didn't suspect this was that deep, I was focusing on this f. pam to
setup.

> 
> Which system model is this happening on? (/me guesses J5000 or PA2.0 K-class)

This is a C180 running
Linux iws1pb02 2.4.18-pa22 #48

This old version was from my 'stable' 712, then I instaled the C180 via a
brute 
cpio -p onto the C180. Then it is a narrow kernel.

My plan (tomorow?) is to get the linux CVS source and recompile...


BTW I think I saw the exact same behavior on a 712 does the dcache problem
present there too? 

Well will see what I got tomorow.
Cheers,
Phi


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I see.
Indeed, I'm not configuring any PCI or ISA slots, as my 712 doesn't have any
(at least I haven't seen any of these slots when I replaced the CMOS
battery). That's why I'm building my own kernels in the first place; to have
a kernel suited for my own box.
I assume if I would disable PCI and ISA on my 486 (hypothetically), the ppa
would have some unresolved symbols as well?
So, should I enable PCI or ISA to make the ppa module work? Or is there
another way around to use the ppa module without the PCI or ISA stuff?
Thanks.

Kenneth

----- Original Message -----
From: "Richard Hirst" <rhirst@linuxcare.com>
To: "kenneth westelinck" <kennywest1@hotmail.com>
Cc: "Matthew Wilcox" <willy@debian.org>; <parisc-linux@parisc-linux.org>
Sent: Wednesday, July 24, 2002 4:39 PM
Subject: Re: [parisc-linux] unresoved symbols when doing a make
modules_install


> On Wed, Jul 24, 2002 at 10:33:22AM +0200, kenneth westelinck wrote:
> > > i'm baffled.  we prototype, define and EXPORT_SYMBOL outs[bwl].  i
can't
> > > see why you'd get this error.
>
> But only if CONFIG_PCI or CONFIG_ISA, kenneth has neither in his config.
>
> Richard
>
>


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# CONFIG_SCSI_GENERIC_NCR5380 is not set
I'm not using it on my 712/60. So I guess you can remove this from your
config for your 712.

----- Original Message -----
From: <joel.soete@freebel.net>
To: "Matthew Wilcox" <willy@debian.org>
Cc: <joel.soete@freebel.net>; <parisc-linux@lists.parisc-linux.org>
Sent: Wednesday, July 24, 2002 3:46 PM
Subject: Re: [parisc-linux] K-2.5.26-pa0: NCR5380.c ?


> Quoting Matthew Wilcox <willy@debian.org>:
>
> > On Wed, Jul 24, 2002 at 02:32:01PM +0200, joel.soete@freebel.net wrote:
> > > In NCR5380.c failled to compile because 'io_request_lock' undeclare.
> >
> > why are you trying to compile this driver?  do you _really_ have an
> > NCR5380?
> >
> > --
> > Revolutions do not require corporate support.
> >
> inheritance from config-2.4.17-32 (of Debian kernel image of this time) :)
>
> Too lasy to analyse exactly what I need for my 712, b180, b2000 I continue
to
> use it.
>
> Joel
>
>
> -------------------------------------------------
> This mail sent through Tiscali Webmail (http://webmail.tiscali.be)
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>


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On Wed, Jul 24, 2002 at 06:06:30PM +0200, kenneth westelinck wrote:
> Indeed, I'm not configuring any PCI or ISA slots, as my 712 doesn't have any
> (at least I haven't seen any of these slots when I replaced the CMOS
> battery). That's why I'm building my own kernels in the first place; to have
> a kernel suited for my own box.

right

> I assume if I would disable PCI and ISA on my 486 (hypothetically), the ppa
> would have some unresolved symbols as well?
> So, should I enable PCI or ISA to make the ppa module work? Or is there
> another way around to use the ppa module without the PCI or ISA stuff?
> Thanks.

the ppa module needs to be rewritten to consider that the parallel port
might be memory mapped.  it will never work on a PA box (except maybe
the B1000 / C3000 / J5000 range).

-- 
Revolutions do not require corporate support.


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Thanks, but I don't take any credits for this. Thank the people from esiee.
I only fixed some define statements.
I'll try to remove the HP-style background, once I've figured out how to
convert the header file to a XPM-file.

regards,

Kenneth

----- Original Message -----
From: "Helge Deller" <deller@gmx.de>
To: "kenneth westelinck" <kennywest1@hotmail.com>;
<parisc-linux@parisc-linux.org>
Sent: Tuesday, July 23, 2002 11:14 PM
Subject: Re: [parisc-linux] linux_logo.h


> Hi Kenneth,
>
> nice logo, but personally I don't like the HP-style background.
> Couldn't you make a patch without any background pattern and just black
instead ?
>
> Greetings,
> Helge
>
> On Tuesday 23 July 2002 15:20, kenneth westelinck wrote:
> > Hi all,
> >
> > The linux_logo.h that is available on the esiee site
> > (http://pateam.esiee.fr/download.html) seems a little outdated. Here's a
> > version that works with 2.4.18-pa56.
> >
> > regards,
> >
> > Kenneth
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>


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phi wrote:
> Ouch didn't suspect this was that deep, I was focusing on this f. pam to
> setup.

It may not be.

> BTW I think I saw the exact same behavior on a 712 does the dcache problem
> present there too? 

No - and I don't expect it on C180 either.
So far I've only see it on SMP machines (with SMP kernel).

thanks,
grant


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From: Paul Bame <bame@fc.hp.com>
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Subject: [parisc-linux] Attention - 'make palo' change
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Especially when cross compiling kernels, many of us have used 'make
palo'.  Unfortunately that required having and building the palo source.
Since palo is installable (at least on x86 and parisc), the time was
right to change this.  There have also been some complications with
'make palo' and the 2.5 development kernel.

So with 2.4.18-pa58, 'make palo' no longer builds palo, but instead
requires you have it installed and in your $PATH.  An error message
will tell you this information if necessary.  Palo's command-line
parameters are taken from 'palo.conf' in your top-level kernel
directory.  If you don't have a palo.conf, a lightly-commented
generic one will be created and you'll be informed about that.  Simply
edit it and run 'make palo' again.  That generic palo.conf file
leaves the lifimage in your top-level kernel directory rather
than ../palo/lifimage where it used to go.  You can change that
in the config file if you want.

If you want the old behavior, use 'make oldpalo', but that may
disappear soon together with the 'make lifimage' logic in palo's
makefile.

Source purists can still grab palo sources and build/install palo
either with 'make install' or by building/installing the debian package.
Take note of the DESTDIR makefile variable if you use 'make install'.

	-P


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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: [parisc-linux] [PATCH] get_initiator for sym53c8xx_2
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Hi all,
I've hacked up a patch to sym53c8xx_2 driver to query PDC
for SCSI ID and other operating parameters:

	ftp://ftp.parisc-linux.org/patches/sym2_pdc.diff

This patch really only matters for (a) C3000, (b) multi-initiator
SCSI clusters, (c) "fast" SE SCSI interfaces with more than 3m cable.
Any other boxes which have unnaturally crippled wide SCSI interface
chips connected to a 50-pin (narrow) SCSI port will need this too.
Using PDC compensates for not having access to NVRAM or BIOS
to set these parameters.

It's past my bedtime...I've not tested it.  If someone can
test it on C3000 in case I don't get to it tomorrow, that
would be great. It does compile/link cleanly though and
is nearly identical to what I implemented for sym1 driver.

thanks,
grant


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i work at place that gets tons of computer junk from companies that are =
getting rid of their equip.  one of our requirements is to kill the =
partitions on the HDs ( it is known that will no completely remove data, =
just make is a little more difficult to get too ).  so we are getting HP =
machines with pa-risc stuff and most wont boot ( i know enough to know =
how to initiate a boot ).  is there some way, using this parisc-linux =
that i can quickly kill partitions?

-Rick
rickvernam@hotmail.com

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<DIV><FONT face=3DArial size=3D2>i work at place that gets tons of =
computer junk=20
from companies that are getting rid of their equip.&nbsp; one of our=20
requirements is to kill the partitions on the HDs ( it is known that =
will no=20
completely remove data, just make is a little more difficult to get too =
).&nbsp;=20
so we are getting HP machines with pa-risc stuff and most wont boot ( i =
know=20
enough to know how to initiate a boot ).&nbsp; is there some way, using =
this=20
parisc-linux that i can&nbsp;<EM>quickly</EM> kill =
partitions?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>-Rick</FONT></DIV>
<DIV><FONT face=3DArial =
size=3D2>rickvernam@hotmail.com</FONT></DIV></BODY></HTML>

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During the install process, one must create partitions to format then
install onto. Getting to that point is not too slow. Doing it from any
ol' HP box that comes in the door may be the biggest challenge.=20

If you can get one box to run with SCSI connections available for other
drives, boot the working boox with all the drives you want blanked,
fdisk them to one big linux partition, then shutdown. It will require
that you pull the drives, but in batch mode of 6 at a time, it will
likely be faster than 6 boots and partial setups.

Any of that old junk you want to throw my way (Atlanta) would be fun :)
My office already looks like a museum.

On Thu, 2002-07-25 at 11:43, Rick Vernam wrote:
> i work at place that gets tons of computer junk from companies that are g=
etting rid of their equip.  one of our requirements is to kill the partitio=
ns on the HDs ( it is known that will no completely remove data, just make =
is a little more difficult to get too ).  so we are getting HP machines wit=
h pa-risc stuff and most wont boot ( i know enough to know how to initiate =
a boot ).  is there some way, using this parisc-linux that i can quickly ki=
ll partitions?
>=20
> -Rick
> rickvernam@hotmail.com
--=20
James P. Kinney III   \Changing the mobile computing world/
President and CEO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint =3D 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7=20



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> Rick Vernam schrieb:
> 
> i work at place that gets tons of computer junk >from companies that
> are getting rid of their equip.  one of our requirements is to kill
> the partitions on the HDs ( it is known that will no completely remove
> data, just make is a little more difficult to get too ).  so we are
> getting HP machines with pa-risc stuff and most wont boot ( i know
> enough to know how to initiate a boot ).  is there some way, using
> this parisc-linux that i can quickly kill partitions?
> 
> -Rick
> rickvernam@hotmail.com

Hi Rick, there probably is. Boot into some nini root environment and
type:

dd if=/dev/null of=/dev/sda [assuming THE drive is sda]

this will overwrite the intire disk with zero bytes (or was /dev/zero
the proper device for that??). Atlernetivly, /dev/random might be a good
source of rubbish data. ;-)

there is the bs= parameter as well (block size). You probably need to
experiment a bit with that, I tried to copy a 20GB disk via dd and it
was dead slow, but I used 8KB as bs. I'd now start with a value of 4-8
MB.

dd if=/dev/null of=/dev/sda bs=512 count=1 will overwrite the boot
sector and partition table; but that's DOS-logic, I do not know how much
of that applies to original HP-UX disks.

Juergen

-- 
===========================================     __   _
Juergen Braukmann juergen.braukmann@gmx.de| -o)/ /  (_)__  __ ____  __
Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
===========================================_\_v __/_/_//_/\_,_/ /_/\_\


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Am 25.07.2002 um 18:29:15 +0200 schrieb Juergen Braukmann folgendes:

> Hi Rick, there probably is. Boot into some nini root environment and
> type:
> 
> dd if=/dev/null of=/dev/sda [assuming THE drive is sda]

bs=1M

Increase the blocksize heftily.

> this will overwrite the intire disk with zero bytes (or was /dev/zero
> the proper device for that??). Atlernetivly, /dev/random might be a good
> source of rubbish data. ;-)

/dev/zero is better.
Don't try /dev/random, it's too slow

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
S/He is playing DOOM, to release pent-up tension created by lusers. 



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There are a couple of methods (assuming /dev/sda is the SCSI disk you wish
to erase):

1) dd if=/dev/zero of=/dev/sda bs=1M count=1

2) script parted or sfdisk to discover partitions and erase them

3) wipe -f -q /dev/sda

1 is the fastest.  Does little to none data protection.  2 is probably just
too fiddly and error prone.  3 is slow but does a reasonable four pass data
scrub of the whole disk as well as erasing the partitions.

Slow is relative.  It took 10.5 minutes to do an older 2GB drive on a 20
MB/s SCSI channel.  However, one could do these in parallel.  A rule of
thumb (based upon the assumption that recycling depots get old disks on old
SCSI channels) is about four disks in parallel per SCSI channel.  Of course,
this is really slow compared to the dd -- under a second on the same setup.

I can see three strategies for the setup:

A) Boot from a scsi disk to an external connector.

B) Boot from a network connector.

C) Remove the disks from the unit and access them through a testbed.

A is pretty straightforward but it assumes an external connector with
compatible SCSI (SE or differential, etc).  Adding a SCSI adapter is not
always an option as PA-RISC Linux doesn't drive HP-PB cards.

B is more effort to get the environment setup but may result in a simpler
process.  It still suffers from the lack of accessibility for anything
connected to HP-PB for instance.

C is more physical work but should probably always work.  A testbed unit
choice might be an older workstation with both differential and SE SCSI
connectors.  There would be the physical hassle of getting different
connector types hooked up but that is solved with various (custom) cables.

Hope this helps!

Kevin


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Juergen Braukmann wrote:

> Hi Rick, there probably is. Boot into some nini root environment and
> type:
> 
> dd if=/dev/null of=/dev/sda [assuming THE drive is sda]
> 
> this will overwrite the intire disk with zero bytes (or was /dev/zero
> the proper device for that??).

/dev/zero gives a stream of null bytes.

Don't use /dev/null; it returns EOF on all reads, or did when I learned
the rules on older Unix and I suspect that still true.

> Atlernetivly, /dev/random might be a good source of rubbish data. ;-)

Not /dev/random. It was designed to produce high-grade random numbers
for critical applications like generating PGP keys. It blocks if you
try to take out more random data than it has input entropy.

/dev/urandom does not block, so you could use that.

It would likely be better to use a little program that just seeds itself
from /dev/urandom and then cranks out lots of psuedo-random crud
quickly.
The FreeS/WAN libraries include source you could use:
http://www.freeswan.org/freeswan_snaps/CURRENT-SNAP/doc/manpage.d/ipsec_prng.3.html
 
> there is the bs= parameter as well (block size). You probably need to
> experiment a bit with that, I tried to copy a 20GB disk via dd and it
> was dead slow, but I used 8KB as bs. I'd now start with a value of 4-8
> MB.

Yes, use a large block size.

How thorough do you need to be? At one extreme, just trashing the
partition table or superbloack may be all you need. At the other,
you may need to do a fair bit of programming.

The classic paper on secure deletion is:
http://www.cs.auckland.ac.nz/~pgut001/pubs/secure_del.html

I once read a US gov't standard for overwriting disks with
non-classified
data on them. (For classified data, you destroy the disk.) It wanted a
minimum of three overwrites, all-0s, all-1s and random data.

The hard part was that you had to guarantee to do that everywhere,
including
blocks the OS or drive had marked bad, things outside partitions that
the OS
couldn't see, ...

A handy loop for cheap but fairly thorough deletions is:

for( i = u = 0 ; i < 4 ; i++, u += 0x55555555 )

This walks each nybble of u through the values 0000, 0101, 1010, 1111 so
you gat the US gov'ts all-0s and all-1s plus a couple of others.


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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: [parisc-linux] Re: e45 as a diskless server
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Have you checked, that the E45 may have (my E55 definitively has) a
"wrong" pin out. It look to be the opposite pin assignment like a
modem, but further studies have shown, that it is non-standard.

I have soldered 8x adapters from 25-female to 25-female but with
the SUN compatible pin out ! This is the same as on the PC (25pin)
but female instead of male !

The following wirering is necessary to have a PC or SUN compatible
connector:
MUX side      PC/SUN like connector
	3.......2 
	2.......3 
	8.......4 
	22......5 
	20......6 
	7.......7 
	4.......8 
	6.......20 
	9.......22 

So you can use a simple NULL-Modem cable to connect the PC to the
PC/SUN compatible MUX connector.

For simple serial console you can use following:
	Only use pins 2,3 and 7, where 2=RX, 3=TX and 7=GND !
If you use NOT a UNIX-like system on the PC the bridge CTS and RTS
pins on the PC side.

On my E55 only port 0 (first connector) is used for the serial console.

With friendly regards
Christoph P.


Jussi Mki wrote:
> 
> > Hello, I am back from vacation.
> >
> > In the moment, I have no valid kernel image (lifimage), as I hack
> > around with the E55 device findings. But if it not a problem for
> > you to have very much output in the kernel booting, you can use it !
> > (To say it again: The image is really original and good, it only
> > generates many lines of output while detecting the devices !!!).
> 
> I've had problems connecting the E45 console to my pc, currently i've only
> managed to use it with the 700/96 HP console, i'll look into that today.
> 
> I'll mail you the boot output if/when i get it working.

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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On Thu, 2002-07-25 at 16:43, Rick Vernam wrote:
> i work at place that gets tons of computer junk from companies that are getting rid of their equip.  one of our requirements is to kill the partitions on the HDs ( it is known that will no completely remove data, just make is a little more difficult to get too ).  so we are getting HP machines with pa-risc stuff and most wont boot ( i know enough to know how to initiate a boot ).  is there some way, using this parisc-linux that i can quickly kill partitions?
> 

Well one silly way to do it would be to simply install Linux on the
machines telling it to use the whole of the disks. At that point you can
put "tested" on the disks 8) and "Free Debian Linux" on the marketing 8)



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From: "Bryan W. Headley" <bwheadley@earthlink.net>
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Subject: Re: [parisc-linux] i dont know jack
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Alan Cox wrote:
> On Thu, 2002-07-25 at 16:43, Rick Vernam wrote:
> 
>>i work at place that gets tons of computer junk from companies that are getting rid of their equip.  one of our requirements is to kill the partitions on the HDs ( it is known that will no completely remove data, just make is a little more difficult to get too ).  so we are getting HP machines with pa-risc stuff and most wont boot ( i know enough to know how to initiate a boot ).  is there some way, using this parisc-linux that i can quickly kill partitions?
>>
> 
> 
> Well one silly way to do it would be to simply install Linux on the
> machines telling it to use the whole of the disks. At that point you can
> put "tested" on the disks 8) and "Free Debian Linux" on the marketing 8)

What, silly? Our admins used to prep Solaris workstations that way. Real 
inexpensive way to differentiate your products ("our Pengiuns pre-hatched")


-- 
____               .:.                 ____
Bryan W. Headley - bwheadley@earthlink.net



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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] PARISC Linux machines?
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Juergen Braukmann said:
> Michael Madden schrieb:
> > Hello;
> > 
> > I was wondering if anyone out there needs older PA-RISC machines to use on
> > PA-RISC Linux and the Debian 3.0 port to PA-RISC.  I have many 735
> > workstations, a few 725/715 workstations, and a few C110 workstations.
> > 
> > Right now, they are all collecting dust.  I'd be willing to donate the
> > machines to someone who will put them to use on the PA-RISC Linux
> > or Debian 3.0 project.
> > 
> > Thanks,
> > 
> > Michael Madden

Michael,

I'm sure you'll get some interest from people; maybe try a non-spammy
offer in the debian-hppa mailing list.  Some more info you could include
would be what part of the world you live in, and whether you have the
means to ship the boxes or if interested parties need to arrange removal
themselves (ie visit you!).

> Hi Michael,
> 
> see http://www.openpa.net (particulary
> http://www.openpa.net/about.html). Paul seems to have an interest in
> that. I could do with some C110 memory, but it's nbot worth to strip
> a working box for that.
> 
> Juergen

Thanks Juergen, I wasn't aware of this site's existence.  I don't think
there's a link to it on the parisc-linux.org web site; is this something
we could do?  Under the "User Resources" section of the sidebar would be
a suitable place, I imagine.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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Subject: [parisc-linux] Debian 3.0 announcement for the website?
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Also regarding the website - well, Debian 3.0 has been released.  Is 
that worthy of an announcement?  I haven't seen any Debian CD mirrors
with hppa ISOs, but can Debian 3.0/hppa CDs be built with jigdo?

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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Subject: Re: [parisc-linux] Debian 3.0 announcement for the website?
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On Fri, Jul 26, 2002 at 01:38:32PM +0800, Andrew Shugg wrote:

> Also regarding the website - well, Debian 3.0 has been released.  Is 
> that worthy of an announcement?  I haven't seen any Debian CD mirrors
> with hppa ISOs, but can Debian 3.0/hppa CDs be built with jigdo?

IMHO this is possible.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Fear leads to anger.  Anger leads to hate.  Hate leads to using
Windows NT for mission-critical applications.



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Hello,
`gcc -print-libgcc-file-name` /usr/src/linux/arch/parisc/lib/lib.a
/usr/src/linux/lib/lib.a  \
        --end-group \
        -o vmlinux
drivers/video/video.o: In function `.L1581':
drivers/video/video.o(.init.text 0x23e8): undefined reference to
`fbcon_sti'
drivers/video/video.o: In function `.L1639':
drivers/video/video.o(.init.text 0x25d0): undefined reference to
`fbcon_sti'
make: *** [vmlinux] Error 1
I got this message when compiling 2.4.18-pa56 na pa58
2.4.18-pa54 was compiled without errors

-------------------------------------------------------------------
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From: Mattias Wadenstein <maswan@acc.umu.se>
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Subject: Re: [parisc-linux] Debian 3.0 announcement for the website?
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On Fri, 26 Jul 2002, Andrew Shugg wrote:

> Also regarding the website - well, Debian 3.0 has been released.  Is
> that worthy of an announcement?  I haven't seen any Debian CD mirrors
> with hppa ISOs, but can Debian 3.0/hppa CDs be built with jigdo?

http://rsync.debcd.acc.umu.se has hppa ISOs, just like all other
architectures. (So does ftp.se.debian.org, but that machine doesn't really
need the extra load right now.)

/Mattias Wadenstein



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I just found one:  http://ftp.de.debian.org/debian-cd/3.0_r0/hppa/

It is one of the few sites that have not only the latest release, but also
fopr most architectures.
Please don't slashdot it, i would like to download as soon as i am home...
;-)

Hans

> -----Original Message-----
> From:	Mattias Wadenstein [SMTP:maswan@acc.umu.se]
> Sent:	Friday, July 26, 2002 1:18 PM
> To:	Andrew Shugg
> Cc:	Linux/HPPA List
> Subject:	Re: [parisc-linux] Debian 3.0 announcement for the website?
> 
> On Fri, 26 Jul 2002, Andrew Shugg wrote:
> 
> > Also regarding the website - well, Debian 3.0 has been released.  Is
> > that worthy of an announcement?  I haven't seen any Debian CD mirrors
> > with hppa ISOs, but can Debian 3.0/hppa CDs be built with jigdo?
> 
> http://rsync.debcd.acc.umu.se has hppa ISOs, just like all other
> architectures. (So does ftp.se.debian.org, but that machine doesn't really
> need the extra load right now.)
> 
> /Mattias Wadenstein
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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On Fri, 26 Jul 2002, Witvliet, Hans wrote:

> I just found one:  http://ftp.de.debian.org/debian-cd/3.0_r0/hppa/
>
> It is one of the few sites that have not only the latest release, but also
> fopr most architectures.
> Please don't slashdot it, i would like to download as soon as i am home...
> ;-)

Well, feel free to slashdot http://rsync-debcd.acc.umu.se, it can take the
load. :)

/Mattias Wadenstein



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Subject: [parisc-linux] graphics console only displays the penguin
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Hi,

I've tried installing the latest iso available online (the entire 400MB 
one), 9.3 I think, through serial console. It worked very well, but now I 
would like to pass it now on a monitor. But all what I get when I boot is 
the penguin logo on the top left corner and a blinking cursor. However I see 
no displayed text at all (the serial console is still available)

I've been advised to uncomment the line containing ttyS0 in the 
/etc/inittab, but this line is already uncommented (without the #).

How can I have both serial and graphics consoles? If anyone could help me, 
or send me their inittab it would be great

thanks in advance




_________________________________________________________________
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From: Joel Soete <joel.soete@freebel.net>
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Hey,



robert klough wrote:
> Hi,
> 
> I've tried installing the latest iso available online (the entire 400MB 
> one), 9.3 I think, through serial console. It worked very well, but now 
> I would like to pass it now on a monitor. But all what I get when I boot 
> is the penguin logo on the top left corner and a blinking cursor. 
> However I see no displayed text at all (the serial console is still 
> available)
What kind of system is it?

Why do not you try netinstall CD available:
http://pateam.esiee.fr/cd-images/testing/

(it is small about 70Mb)

Or the last Debian Woody 3.0 just release (see www.debian.org where to 
download) (but bigger size)

Normaly I test netinstall CD (with a more recent kernel) and it boot 
well with on the graphical screen of my b180. (I hope to test the new 
Debian next week).

> 
> I've been advised to uncomment the line containing ttyS0 in the 
> /etc/inittab, but this line is already uncommented (without the #).
> 

I will see on my station how I setup my inittab.

See you and Good luck,
	Joel





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On Fri, 26 Jul 2002, robert klough wrote:

> Hi,
> 
> I've tried installing the latest iso available online (the entire 400MB 
> one), 9.3 I think, through serial console. It worked very well, but now I 
> would like to pass it now on a monitor. But all what I get when I boot is 
> the penguin logo on the top left corner and a blinking cursor. However I see 
> no displayed text at all (the serial console is still available)
> 
> I've been advised to uncomment the line containing ttyS0 in the 
> /etc/inittab, but this line is already uncommented (without the #).
Uncomment (or add) a line for tty0 instead.  If you want to see the linux
boot stuff on the monitor, you need to set the console in palo (not sure
the exact syntax for that).  

My inittab contains these relevant lines (I have all 6 vt's on the 
monitor)

1:2345:respawn:/sbin/getty 38400 tty1
2:23:respawn:/sbin/getty 38400 tty2
3:23:respawn:/sbin/getty 38400 tty3
4:23:respawn:/sbin/getty 38400 tty4
5:23:respawn:/sbin/getty 38400 tty5
6:23:respawn:/sbin/getty 38400 tty6

T0:23:respawn:/sbin/getty -L ttyS0 9600 vt102


-- 
If Karl, instead of writing a lot about Capital, had made a lot of Capital,
it would have been much better.
		-- Karl Marx's Mother



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"robert klough" wrote:
> I've been advised to uncomment the line containing ttyS0 in the 
> /etc/inittab, but this line is already uncommented (without the #).

As already noted, use /dev/tty0. ttyS0 is serial port login.

> How can I have both serial and graphics consoles?

No. I define console as where the *firmware* sends output
when booting. Linux attempts to respect the firmware settings.

You can have a serial console and a gfx login prompt.
And vice versa. It's a matter of setting CONSOLE paths
at the PDC prompt and setting up gettys' in /etc/inittab.

grant


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Grant Grundler wrote:
> Hi all,
> I've hacked up a patch to sym53c8xx_2 driver to query PDC
> for SCSI ID and other operating parameters:
> 
> 	ftp://ftp.parisc-linux.org/patches/sym2_pdc.diff

I've reworked this patch and commited the code...only to find that
while sym53c8xx_2 works on C3000, it hangs on my A500 after finding
the interface cards but before any disks are discovered:
CPU 0   GR02 0x1010bbc8 do_irq+f8
CPU 0   IOAQ 0x102245f0 sym53c8xx_intr+140

I'll be looking at this over the weekend.

grant


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Andrew Shugg schrieb:

> [...]
> 
> 
> Thanks Juergen, I wasn't aware of this site's existence.  I don't think
> there's a link to it on the parisc-linux.org web site; is this something
> we could do?  Under the "User Resources" section of the sidebar would be
> a suitable place, I imagine.
> 
> Andrew.
> 
Andrew, you get there, but it's a bit hidden:

Select "technical documentation" from the main pa-risc page, other
useful links, you see "Other OS's for pa-risc" listed under "Utilitoes &
Source code". That link takes you there.
But I agree, a direct link from the main page would be more informative.

Juergen

-- 
===========================================     __   _
Juergen Braukmann juergen.braukmann@gmx.de| -o)/ /  (_)__  __ ____  __
Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
===========================================_\_v __/_/_//_/\_,_/ /_/\_\


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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: Re: [parisc-linux] linux_logo.h
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Cc: Helge Deller <deller@gmx.de>, parisc-linux@parisc-linux.org
To: kenneth westelinck <kennywest1@hotmail.com>
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Kenneth, thank you for your support !

I will make your new version of the logo available on our website
ASAP.

Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/

-------------------
> Thanks, but I don't take any credits for this. Thank the people from
esiee.
> I only fixed some define statements.
> I'll try to remove the HP-style background, once I've figured out
how to
> convert the header file to a XPM-file.
> 
> regards,
> 
> Kenneth
> 
> ----- Original Message -----
> From: "Helge Deller" <deller@gmx.de>
> To: "kenneth westelinck" <kennywest1@hotmail.com>;
> <parisc-linux@parisc-linux.org>
> Sent: Tuesday, July 23, 2002 11:14 PM
> Subject: Re: [parisc-linux] linux_logo.h
> 
> 
> > Hi Kenneth,
> >
> > nice logo, but personally I don't like the HP-style background.
> > Couldn't you make a patch without any background pattern and just
black
> instead ?
> >
> > Greetings,
> > Helge
> >
> > On Tuesday 23 July 2002 15:20, kenneth westelinck wrote:
> > > Hi all,
> > >
> > > The linux_logo.h that is available on the esiee site
> > > (http://pateam.esiee.fr/download.html) seems a little outdated.
Here's a
> > > version that works with 2.4.18-pa56.
> > >
> > > regards,
> > >
> > > Kenneth
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


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> we're still a little short of attempting to link.  entry.S and head.S
> need to be massaged to work in the new O(1) scheduler world.  note that
> we're leaving preempt disabled until later.  once it does attempt to link,
> i suspect we'll find there're a lot of functions which need to be written
> (particularly mm-related ones) and probably some include cleanups to do.

In case people are wondering where this is at.... today we got a
somewhat working shell.....

kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Stand-alone shell (version 3.4)
> uname -a
Linux (none) 2.5.26-pa0 #106 Sat Jul 27 18:49:37 PDT 2002 parisc unknown unknown GNU/Linux

This is on a a500 (64-bit kernel). Richard has also had success with
b180 (iirc).

For the most part things are still quite broken (init, ls, etc don't 
work yet).  There are probably some changes related to the task_struct 
to thread_info transition that still needs to be worked out for 
syscalls to work correctly.... 

Richard Hirst worked out most of the bugs to get userspace working.
Thanks Richard! :-)

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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This is a multi-part message in MIME format.

------=_NextPart_000_002E_01C23666.656FE030
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	charset="iso-8859-1"
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Hi!

I just installed 0.9.3 from the base/netinst image fetched from =
/http://ftp.parisc-linux.org/cd-images/palinux-0.9.3-base.iso but I've =
got a small problem.

Everything installed fine, up until apt was about to do it's thing.  =
After adding an apt source it tried to test and every instance where =
gzip was used it seg faulted.

Therefore, I only have a base system installed and can't apt-get =
anything :)

The system is an HP 9000 Server Model D250

Any and all assistance will be appreciated.  Thanks.

Here's what dmesg said (numerous times):

do_page_fault() pid=3D548 command=3D'gzip' type=3D6 address=3D0x00000003

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111
r0-3     00000000 0002fe38 0001dc63 faf00340
r4-7     0002f638 faf00120 000301d2 00000002
r8-11    0003025a 00028c34 faf004b8 00000000
r12-15   00000046 00000014 faf00468 00000000
r16-19   00000000 00025370 00017800 00000000
r20-23   00000000 0003005c 00000000 40182310
r24-27   00000000 00000000 0003005c 0002f638
r28-31   00000000 00000000 faf003c0 0001dc63
sr0-3    00000000 00000133 00000000 00000133
sr4-7    00000133 00000133 00000133 00000133

IASQ: 00000133 00000133 IAOQ: 00000003 00000007
 IIR: 4bc23ed9    ISR: 00000133  IOR: 40184d84
 CPU:        0   CR30: 1e20c000 CR31: 10338000
 ORIG_R28: 4002a29c



~ Darryl
~ http://pileofcrap.org/

------=_NextPart_000_002E_01C23666.656FE030
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2716.2200" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi!</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I just installed 0.9.3 from the =
base/netinst image=20
fetched from =
/http://ftp.parisc-linux.org/cd-images/palinux-0.9.3-base.iso but=20
I've got a small problem.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Everything installed fine, up until apt =
was about=20
to do it's thing.&nbsp; After adding an apt source it tried to test and =
every=20
instance where gzip was used it seg faulted.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Therefore, I only have a base system =
installed and=20
can't apt-get anything :)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>The system is an HP 9000 Server Model=20
D250</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Any and all assistance will be =
appreciated.&nbsp;=20
Thanks.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Here's what dmesg said (numerous=20
times):</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV><FONT face=3DArial =
size=3D2>
<DIV>do_page_fault() pid=3D548 command=3D'gzip' type=3D6 =
address=3D0x00000003</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;&nbsp;&nbsp;&nbsp; YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI<BR>PSW:=20
00000000000001000000000000001111<BR>r0-3&nbsp;&nbsp;&nbsp;&nbsp; =
00000000=20
0002fe38 0001dc63 faf00340<BR>r4-7&nbsp;&nbsp;&nbsp;&nbsp; 0002f638 =
faf00120=20
000301d2 00000002<BR>r8-11&nbsp;&nbsp;&nbsp; 0003025a 00028c34 faf004b8=20
00000000<BR>r12-15&nbsp;&nbsp; 00000046 00000014 faf00468=20
00000000<BR>r16-19&nbsp;&nbsp; 00000000 00025370 00017800=20
00000000<BR>r20-23&nbsp;&nbsp; 00000000 0003005c 00000000=20
40182310<BR>r24-27&nbsp;&nbsp; 00000000 00000000 0003005c=20
0002f638<BR>r28-31&nbsp;&nbsp; 00000000 00000000 faf003c0=20
0001dc63<BR>sr0-3&nbsp;&nbsp;&nbsp; 00000000 00000133 00000000=20
00000133<BR>sr4-7&nbsp;&nbsp;&nbsp; 00000133 00000133 00000133 =
00000133</DIV>
<DIV>&nbsp;</DIV>
<DIV>IASQ: 00000133 00000133 IAOQ: 00000003 00000007<BR>&nbsp;IIR:=20
4bc23ed9&nbsp;&nbsp;&nbsp; ISR: 00000133&nbsp; IOR:=20
40184d84<BR>&nbsp;CPU:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
0&nbsp;&nbsp;=20
CR30: 1e20c000 CR31: 10338000<BR>&nbsp;ORIG_R28: 4002a29c</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>~ Darryl</DIV>
<DIV>~ <A=20
href=3D"http://pileofcrap.org/">http://pileofcrap.org/</A></FONT></DIV></=
BODY></HTML>

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From: "D. Clarke" <dclarke@FlatlineSystems.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] gzip segmentation fault(s)
Date: Sun, 28 Jul 2002 20:22:07 -0400
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Interesting enough, gzip doesn't segfault when i installed from the =
full-install ISO...

~ Darryl
~ http://pileofcrap.org/
  ----- Original Message -----=20
  From: D. Clarke=20
  To: parisc-linux@lists.parisc-linux.org=20
  Sent: Sunday, July 28, 2002 6:41 PM
  Subject: [parisc-linux] gzip segmentation fault(s)


  Hi!

  I just installed 0.9.3 from the base/netinst image fetched from =
/http://ftp.parisc-linux.org/cd-images/palinux-0.9.3-base.iso but I've =
got a small problem.

  Everything installed fine, up until apt was about to do it's thing.  =
After adding an apt source it tried to test and every instance where =
gzip was used it seg faulted.

  Therefore, I only have a base system installed and can't apt-get =
anything :)

  The system is an HP 9000 Server Model D250

  Any and all assistance will be appreciated.  Thanks.

  Here's what dmesg said (numerous times):

  do_page_fault() pid=3D548 command=3D'gzip' type=3D6 =
address=3D0x00000003

       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
  PSW: 00000000000001000000000000001111
  r0-3     00000000 0002fe38 0001dc63 faf00340
  r4-7     0002f638 faf00120 000301d2 00000002
  r8-11    0003025a 00028c34 faf004b8 00000000
  r12-15   00000046 00000014 faf00468 00000000
  r16-19   00000000 00025370 00017800 00000000
  r20-23   00000000 0003005c 00000000 40182310
  r24-27   00000000 00000000 0003005c 0002f638
  r28-31   00000000 00000000 faf003c0 0001dc63
  sr0-3    00000000 00000133 00000000 00000133
  sr4-7    00000133 00000133 00000133 00000133

  IASQ: 00000133 00000133 IAOQ: 00000003 00000007
   IIR: 4bc23ed9    ISR: 00000133  IOR: 40184d84
   CPU:        0   CR30: 1e20c000 CR31: 10338000
   ORIG_R28: 4002a29c



  ~ Darryl
  ~ http://pileofcrap.org/

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2716.2200" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Interesting enough, gzip doesn't =
segfault&nbsp;when=20
i installed from the full-install ISO...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>~ Darryl</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>~ http://pileofcrap.org/</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3Ddclarke@flatlinesystems.net=20
  href=3D"mailto:dclarke@flatlinesystems.net">D. Clarke</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  title=3Dparisc-linux@lists.parisc-linux.org=20
  =
href=3D"mailto:parisc-linux@lists.parisc-linux.org">parisc-linux@lists.pa=
risc-linux.org</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Sunday, July 28, 2002 =
6:41 PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [parisc-linux] gzip =
segmentation=20
  fault(s)</DIV>
  <DIV><BR></DIV>
  <DIV><FONT face=3DArial size=3D2>Hi!</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>I just installed 0.9.3 from the =
base/netinst=20
  image fetched from=20
  /http://ftp.parisc-linux.org/cd-images/palinux-0.9.3-base.iso but I've =
got a=20
  small problem.</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>Everything installed fine, up until =
apt was about=20
  to do it's thing.&nbsp; After adding an apt source it tried to test =
and every=20
  instance where gzip was used it seg faulted.</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>Therefore, I only have a base system =
installed=20
  and can't apt-get anything :)</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>The system is an HP 9000 Server Model =

  D250</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>Any and all assistance will be =
appreciated.&nbsp;=20
  Thanks.</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>Here's what dmesg said (numerous=20
  times):</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV><FONT face=3DArial =
size=3D2>
  <DIV>do_page_fault() pid=3D548 command=3D'gzip' type=3D6 =
address=3D0x00000003</DIV>
  <DIV>&nbsp;</DIV>
  <DIV>&nbsp;&nbsp;&nbsp;&nbsp; YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI<BR>PSW: =

  00000000000001000000000000001111<BR>r0-3&nbsp;&nbsp;&nbsp;&nbsp; =
00000000=20
  0002fe38 0001dc63 faf00340<BR>r4-7&nbsp;&nbsp;&nbsp;&nbsp; 0002f638 =
faf00120=20
  000301d2 00000002<BR>r8-11&nbsp;&nbsp;&nbsp; 0003025a 00028c34 =
faf004b8=20
  00000000<BR>r12-15&nbsp;&nbsp; 00000046 00000014 faf00468=20
  00000000<BR>r16-19&nbsp;&nbsp; 00000000 00025370 00017800=20
  00000000<BR>r20-23&nbsp;&nbsp; 00000000 0003005c 00000000=20
  40182310<BR>r24-27&nbsp;&nbsp; 00000000 00000000 0003005c=20
  0002f638<BR>r28-31&nbsp;&nbsp; 00000000 00000000 faf003c0=20
  0001dc63<BR>sr0-3&nbsp;&nbsp;&nbsp; 00000000 00000133 00000000=20
  00000133<BR>sr4-7&nbsp;&nbsp;&nbsp; 00000133 00000133 00000133 =
00000133</DIV>
  <DIV>&nbsp;</DIV>
  <DIV>IASQ: 00000133 00000133 IAOQ: 00000003 00000007<BR>&nbsp;IIR:=20
  4bc23ed9&nbsp;&nbsp;&nbsp; ISR: 00000133&nbsp; IOR:=20
  40184d84<BR>&nbsp;CPU:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
0&nbsp;&nbsp;=20
  CR30: 1e20c000 CR31: 10338000<BR>&nbsp;ORIG_R28: 4002a29c</DIV>
  <DIV>&nbsp;</DIV>
  <DIV>&nbsp;</DIV>
  <DIV>&nbsp;</DIV>
  <DIV>~ Darryl</DIV>
  <DIV>~ <A=20
href=3D"http://pileofcrap.org/">http://pileofcrap.org/</A></FONT></DIV></=
BLOCKQUOTE></BODY></HTML>

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From - Thu Nov 08 21:23:57 2018
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From: Grant Grundler <grundler@dsl2.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] gzip segmentation fault(s)
Date: Sun, 28 Jul 2002 18:57:25 -0600
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"D. Clarke" wrote:
> Interesting enough, gzip doesn't segfault when i installed from the =
> full-install ISO...

Daryl,
Try updating both the userspace and kernel together.
Newer 2.4.18 kernels should be available as debian packages
and from ftp.parisc-linux.org/kernels/32 (for D-class).


The 0.9.3 ISO is *really* old - a bit over 6 monthes and alot has
changed since then. I will update the parisc-linux.org web page to
point to a debian-hppa 3.0 install ISO. I thought I saw it mentioned
here that those are available on the regular mirrors.

thanks,
grant


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This is a multi-part message in MIME format.
--------------030208090504060708000406
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Hello, it is my config from pa54
I tried this on pa59 and again kernel don't want to compile
Please help me


--------------030208090504060708000406
Content-Type: text/plain;
 name=".config"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename=".config"

#
# Automatically generated make config: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y

#
# Processor type
#
# CONFIG_PA7100 is not set
CONFIG_PA7200=y
# CONFIG_PA7100LC is not set
# CONFIG_PA8X00 is not set
CONFIG_PA11=y

#
# General options
#
CONFIG_SMP=y
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_KWDB is not set
CONFIG_IOMMU_CCIO=y
CONFIG_GSC=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_ISA=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_SUPERIO=y
CONFIG_PCI_NAMES=y

#
# General setup
#
# CONFIG_HOTPLUG is not set
CONFIG_NET=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=y
CONFIG_BINFMT_MISC=y
# CONFIG_PM is not set

#
# Parallel port support
#
CONFIG_PARPORT=y
# CONFIG_PARPORT_PC is not set
# CONFIG_PARPORT_AMIGA is not set
# CONFIG_PARPORT_MFC3 is not set
# CONFIG_PARPORT_ATARI is not set
CONFIG_PARPORT_GSC=y
# CONFIG_PARPORT_SUNBPP is not set
# CONFIG_PARPORT_OTHER is not set
# CONFIG_PARPORT_1284 is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_LOOP=y
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y

#
# Multi-device support (RAID and LVM)
#
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_MD_RAID5=y
# CONFIG_MD_MULTIPATH is not set
CONFIG_BLK_DEV_LVM=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=y
CONFIG_NETFILTER=y
CONFIG_NETFILTER_DEBUG=y
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_MULTIPLE_TABLES=y
# CONFIG_IP_ROUTE_FWMARK is not set
CONFIG_IP_ROUTE_NAT=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_TOS=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_LARGE_TABLES=y
# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=y
CONFIG_NET_IPGRE=y
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_ARPD=y
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set

#
#   IP: Netfilter Configuration
#
# CONFIG_IP_NF_CONNTRACK is not set
# CONFIG_IP_NF_QUEUE is not set
# CONFIG_IP_NF_IPTABLES is not set
# CONFIG_IP_NF_COMPAT_IPCHAINS is not set
# CONFIG_IP_NF_COMPAT_IPFWADM is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set

#
#  
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
CONFIG_NET_SCHED=y
CONFIG_NET_SCH_CBQ=y
CONFIG_NET_SCH_CSZ=y
CONFIG_NET_SCH_PRIO=y
CONFIG_NET_SCH_RED=y
CONFIG_NET_SCH_SFQ=y
CONFIG_NET_SCH_TEQL=y
CONFIG_NET_SCH_TBF=y
CONFIG_NET_SCH_GRED=y
CONFIG_NET_SCH_DSMARK=y
# CONFIG_NET_SCH_INGRESS is not set
CONFIG_NET_QOS=y
CONFIG_NET_ESTIMATOR=y
CONFIG_NET_CLS=y
CONFIG_NET_CLS_TCINDEX=y
CONFIG_NET_CLS_ROUTE4=y
CONFIG_NET_CLS_ROUTE=y
CONFIG_NET_CLS_FW=y
CONFIG_NET_CLS_U32=y
CONFIG_NET_CLS_RSVP=y
# CONFIG_NET_CLS_RSVP6 is not set
CONFIG_NET_CLS_POLICE=y

#
# ATA/IDE/MFM/RLL support
#
# CONFIG_IDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set

#
# SCSI support
#
CONFIG_SCSI=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=y
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=y

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
CONFIG_53C700_USE_CONSISTENT=y
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_ASK_ZALON is not set
# CONFIG_ASK_NCR53C8XX is not set
# CONFIG_ASK_SYM53C8XX is not set
CONFIG_SCSI_ZALON=y
CONFIG_ASK_ZALON=y
# CONFIG_SCSI_SYM53C8XX is not set
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=y
# CONFIG_SUNLANCE is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_NET_PCI is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
CONFIG_PPP=y
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=y
CONFIG_PPP_SYNC_TTY=y
CONFIG_PPP_DEFLATE=y
CONFIG_PPP_BSDCOMP=y
CONFIG_PPPOE=y
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Input core support
#
# CONFIG_INPUT is not set
# CONFIG_INPUT_KEYBDEV is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=y
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_PC110_PAD is not set

#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set

#
# Input core support is needed for gameports
#

#
# Input core support is needed for joysticks
#
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_INTEL_RNG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# HIL support
#

#
# Input support needed for HIL support
#

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
CONFIG_REISERFS_FS=y
CONFIG_REISERFS_CHECK=y
CONFIG_REISERFS_PROC_INFO=y
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BFS_FS is not set
CONFIG_EXT3_FS=y
CONFIG_JBD=y
CONFIG_JBD_DEBUG=y
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_UMSDOS_FS=y
CONFIG_VFAT_FS=y
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_MINIX_FS=y
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
# CONFIG_INTERMEZZO_FS is not set
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_ROOT_NFS is not set
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_SMB_FS=y
# CONFIG_SMB_NLS_DEFAULT is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
CONFIG_ZISOFS_FS=y
CONFIG_ZLIB_FS_INFLATE=y

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_SMB_NLS=y
CONFIG_NLS=y

#
# Native Language Support
#
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
CONFIG_NLS_CODEPAGE_855=y
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
CONFIG_NLS_CODEPAGE_866=y
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
CONFIG_NLS_CODEPAGE_1251=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
CONFIG_NLS_ISO8859_5=y
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
CONFIG_NLS_KOI8_R=y
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set

#
# Console drivers
#

#
# Frame-buffer support
#
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FB_RIVA is not set
# CONFIG_FB_CLGEN is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
CONFIG_FB_STI=y
# CONFIG_FB_MATROX is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_VIRTUAL is not set
CONFIG_FBCON_ADVANCED=y
# CONFIG_FBCON_MFB is not set
# CONFIG_FBCON_CFB2 is not set
# CONFIG_FBCON_CFB4 is not set
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB16=y
CONFIG_FBCON_CFB24=y
CONFIG_FBCON_CFB32=y
# CONFIG_FBCON_AFB is not set
# CONFIG_FBCON_ILBM is not set
# CONFIG_FBCON_IPLAN2P2 is not set
# CONFIG_FBCON_IPLAN2P4 is not set
# CONFIG_FBCON_IPLAN2P8 is not set
# CONFIG_FBCON_MAC is not set
# CONFIG_FBCON_VGA_PLANES is not set
# CONFIG_FBCON_VGA is not set
# CONFIG_FBCON_HGA is not set
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set
# CONFIG_FBCON_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y

#
# Sound
#
CONFIG_SOUND=y
# CONFIG_SOUND_BT878 is not set
# CONFIG_SOUND_CMPCI is not set
# CONFIG_SOUND_EMU10K1 is not set
# CONFIG_MIDI_EMU10K1 is not set
# CONFIG_SOUND_FUSION is not set
# CONFIG_SOUND_CS4281 is not set
# CONFIG_SOUND_ES1370 is not set
# CONFIG_SOUND_ES1371 is not set
# CONFIG_SOUND_ESSSOLO1 is not set
# CONFIG_SOUND_MAESTRO is not set
# CONFIG_SOUND_MAESTRO3 is not set
# CONFIG_SOUND_ICH is not set
CONFIG_SOUND_HARMONY=y
# CONFIG_SOUND_RME96XX is not set
# CONFIG_SOUND_SONICVIBES is not set
# CONFIG_SOUND_TRIDENT is not set
# CONFIG_SOUND_MSNDCLAS is not set
# CONFIG_SOUND_MSNDPIN is not set
# CONFIG_SOUND_VIA82CXXX is not set
# CONFIG_MIDI_VIA82CXXX is not set
# CONFIG_SOUND_OSS is not set
# CONFIG_SOUND_TVMIXER is not set

#
# USB support
#
# CONFIG_USB is not set

#
# USB Controllers
#
# CONFIG_USB_UHCI is not set
# CONFIG_USB_UHCI_ALT is not set
# CONFIG_USB_OHCI is not set

#
# USB Device Class drivers
#
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_BLUETOOTH is not set
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_HP8200e is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set

#
# USB Human Interface Devices (HID)
#

#
#   Input core support is needed for USB HID
#

#
# USB Imaging devices
#
# CONFIG_USB_DC2XX is not set
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_SCANNER is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_HPUSBSCSI is not set

#
# USB Multimedia devices
#

#
#   Video4Linux support is needed for USB Multimedia device support
#

#
# USB Network adaptors
#
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_CATC is not set
# CONFIG_USB_CDCETHER is not set
# CONFIG_USB_USBNET is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set

#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_EMPEG is not set
# CONFIG_USB_SERIAL_FTDI_SIO is not set
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IPAQ is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XA is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XB is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_PL2303 is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OMNINET is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_RIO500 is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y

--------------030208090504060708000406--



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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: Re: [parisc-linux] Re: e45 as a diskless server
Date: Mon, 29 Jul 2002 13:30:13 +0200
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To: Christoph Plattner <christoph.plattner@gmx.at>
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Xref: news.gmane.org gmane.linux.ports.parisc:15675

Le jeudi 25 juillet 2002, =E0 08:56 , Christoph Plattner a =E9crit :

> Have you checked, that the E45 may have (my E55 definitively has) a
> "wrong" pin out. It look to be the opposite pin assignment like a
> modem, but further studies have shown, that it is non-standard.
Yes; it is exactly the same on our E35.
We noticed that the cable connecting the MUX to the Console wasn't a
cross (null modem) one, but a 'straight' one instead.
We built a small 'cross-converter', basically a standard 25-25 serial
cable with female plugs and could then connect the MUX to any standard
serial port.


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] cannot compile kernel
Date: Mon, 29 Jul 2002 11:28:28 +0100
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On Mon, Jul 29, 2002 at 11:06:14AM +0300, Stephan Trajkoff wrote:
> Hello, it is my config from pa54
> I tried this on pa59 and again kernel don't want to compile
> Please help me

Switch off CONFIG_FBCON_ADVANCED.

drivers/video/Config.in is broken, it only does

  if [ "$CONFIG_FB_STI" = "y" ]; then
    define_tristate CONFIG_FBCON_STI y
  fi

if CONFIG_FBCON_ADVANCED != y

Richard



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From: Russell King <rmk@arm.linux.org.uk>
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Subject: [parisc-linux] 3 Serial issues up for discussion (was: Re: Serial core problems on embedded PPC)
Date: Mon, 29 Jul 2002 18:17:02 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:15677

On Mon, Jul 29, 2002 at 07:44:08AM -0700, Tom Rini wrote:
> On Mon, Jul 29, 2002 at 10:00:10AM +0100, Russell King wrote:
> > Unless ppc and others are willing to put up with major breakage when I
> > change asm/serial.h, I don't see this getting cleaned up.  Comments on
> > this area welcome.
> 
> Well, what changes do you have in mind?

Firstly, apologies to Tom for turning this into a general discussion
mail.  At the request of Tom, this message is also CC:'d to the PPC
devel lists.

There's quite a lot in here, so please, when replying edit out stuff
your not replying to.  Thanks.


1. Serial port initialisation
-----------------------------

Firstly, one thing to bear in mind here is that, as Alan says "be nice
to make sure it was much earlier".  I guess Alan's right, so we can get
oopsen out of the the kernel relatively easily, even when we're using
framebuffer consoles.

I'm sure Alan will enlighten us with his specific reasons if required.

There have been several suggestions around on how to fix this table:

a. architectures provide a sub-module to 8250.c which contains the
   per-port details, rather than a table in serial.h.  This would
   ideally mean removing serial.h completely.  The relevant object
   would be linked into 8250.c when 8250.c is built as a module.

b. we create 8250_hub6.c, 8250_generic.c, 8250_multiport.c and friends
   each containing the parameters for the specific cards and handle it
   as above.

c. make it the responsibility of user space to tell the kernel about
   many serial ports, and leave just the ones necessary for serial
   console in the kernel.  (see issue 2 below)

d. we keep serial.h, make it 8250-compatible ports only, and change
   CONFIG_SERIAL_MULTIPORT and friends to CONFIG_SERIAL_8250_MULTIPORT
   This is the simplest and least likely to break other code.  On the
   other hand, we end up hauling the ISA table and struct old_serial_port
   into 2.6.


2. setserial API
----------------

This is actually tied closely into another issue; I'd like to get rid
of this silly idea where we're able to open serial ports that don't
exist (ie, their UART is "unknown").  This behaviour appears to be for
the benefit of setserial to allow it to modify port base addresses and
interrupt levels, etc.  Removing this facility would require a new API
for such things.  The best suggestion made so far is to do something
like:

# echo "add 0x2e8,3,autoconfig" >/dev/serialctl
# echo "remove 0x2e8" >/dev/serialctl

(or s,/dev/serialctl,/proc/tty/driver/serial, which pre-exists)

where we have "add ioport,irq,flags" and "remove ioport" (note that
mmio ports aren't covered here since they require ioremap games which
tends to be card specific!)

Why make this change?  Well, we have quite a lot of baggage being
dragged around to support configuration of an open port and being
able to open a non-existent port.  I'd really like to get rid of
this excess baggage.


3. /dev/ttyS*, /dev/ttySA*, /dev/ttyCL*, /dev/ttyAM*, etc
---------------------------------------------------------

All the above are serial ports of various types.  It has been expressed
several times that people would like to see all of them appear as
/dev/ttyS* (indeed, there was an, erm, rather heated discussion about
it a couple of years ago.)  I'm going to be neutral on this point
here.

There are several issues surrounding this:

a. The serial core.c is very almost capable of handling this abstraction,
   with one exception - a registered port can only be in one group at
   one time.  This restriction is brought about because of the way the
   tty layer handles its tty ports.

   (Handling dual registrations in two different majors gets _really_
    messy - eg, you two built-in 16550A ports and two SA1100 ports
    taking up ttyS0 to ttyS3.  You then add a 16550A PCMCIA modem,
    which becomes ttyS4.  Oh, and the SA1100 ports are also appearing
    as ttySA0 and ttySA1.  _really_ messy.  No thanks.)

b. serial consoles.  Each hardware driver handles its serial consoles
   by itself, and if you have two or more hardware drivers built in
   with serial console support, you need to be able to tell them apart
   with the console= kernel parameter.

   Again, this could be solvable if we have one "ttyS" view of everything
   (core.c would then be responsible for registering the console with
    printk.c and passing the various methods off to the relevant
    hardware).

c. People with many serial ports.  We _could_ change the device number
   allocations such that ttyS gobbles up the ttySA, ttyCL, ttyAM, etc
   device numbers so we end up with the same number of port slots
   available for those with many many serial ports in their machines.



-- 
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html

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Andrew Shugg wrote:
> Thanks Juergen, I wasn't aware of this site's existence.  I don't think
> there's a link to it on the parisc-linux.org web site; is this something
> we could do?  Under the "User Resources" section of the sidebar would be
> a suitable place, I imagine.

I agree.  As noted, it's under "Techinical Documentation".
I'd like to see this link "promoted" to the navigation bar or
something more obvious on the navigation bar.

I'll be working on that in the next week or so.

grant


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: [parisc-linux] Booting Debian on an HP C180 workstation
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Hey all,

This is going to sound like a really stupid question, but here goes. 
I'm a UNIX hardware guy and don't do too much with the software
portion.  I am well versed in the HP boot admin level of the box and
troubleshoot HP hardware.  I have dowloaded the Debian
palinux-0.9.3.iso.gz from http://ftp.parisc-linux.org/cd-images/ to my
Win2k PC at home with CD burner.  Here comes the stupid part....how the
hell do I burn it to the CD and get it to boot on my C180?  Looking for
as much detail as possible since I am VERY new to this.  Thanks.

P.S. I know my C180 is fully functional since I used the current
DVD-ROM on it to load HP-UX 11i and it runs that well.

Derek

__________________________________________________
Do You Yahoo!?
Yahoo! Health - Feel better, live better
http://health.yahoo.com


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Derek Engelhaupt writes...

> I have dowloaded the Debian
> palinux-0.9.3.iso.gz from http://ftp.parisc-linux.org/cd-images/ to my
> Win2k PC at home with CD burner.  Here comes the stupid part....how the
> hell do I burn it to the CD and get it to boot on my C180?  Looking for
> as much detail as possible since I am VERY new to this.  Thanks.

 - gunzip the image
 - run md5sum and compare the result with the published value to make sure
    the image is ok
 - use your cd burner to burn the "raw" image. You may need to play with the
    options to get it right. You're trying to get the software to just burn
    the image *as is* without messing with it. Some software tries to be 
smart
    and "help" you by messing with the filesystem or the bootable frontend
    part. You don't want that so turn it off.
 - Load the burned cd in the c180
 - From firmware "sea"rch for bootable devices. If you burned the cd right
    it should show up.
 - boot from the cd, install debian, have a nice $BEVERAGE


-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation




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Hi all,

Yesterday morning I do a cvs update of what I believe till last week being
gcc-3.1
(CVS/Tag == Tgcc-3-1-branch) but gcc/gcc/version.c shows me now 3.2 (well
the current development CVS being now 3.3)?

What do I wrong? (would I have to define the branch parameter each time I
do an update?)

Thanks in advance for advise,
    Joel



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On Tue, Jul 30, 2002 at 08:27:39AM +0200, jsoe0708@tiscali.be wrote:
> Yesterday morning I do a cvs update of what I believe till last week being
> gcc-3.1
> (CVS/Tag == Tgcc-3-1-branch) but gcc/gcc/version.c shows me now 3.2 (well
> the current development CVS being now 3.3)?

ah, you haven't been following the gcc mailing list.  due to a pressing
need to change the c++ ABI, the current 3.1 development tree has been
renamed to 3.2 and the erstwhile 3.2 development line has been renamed
to 3.3.

-- 
Revolutions do not require corporate support.


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On Mon, Jul 29, 2002 at 07:00:30PM -0700, Derek Engelhaupt wrote:
[snip]
> troubleshoot HP hardware.  I have dowloaded the Debian
> palinux-0.9.3.iso.gz from http://ftp.parisc-linux.org/cd-images/ to my
[snip]

Should people still be using 0.9.3 or should they rather use Debian 3.0
CDs?

-- 
Michael Wood <mwood@its.uct.ac.za>


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On Tue, Jul 30, 2002 at 02:28:59PM +0200, Michael Wood wrote:
> On Mon, Jul 29, 2002 at 07:00:30PM -0700, Derek Engelhaupt wrote:
> [snip]
> > troubleshoot HP hardware.  I have dowloaded the Debian
> > palinux-0.9.3.iso.gz from http://ftp.parisc-linux.org/cd-images/ to my
> [snip]
> 
> Should people still be using 0.9.3 or should they rather use Debian 3.0
> CDs?

0.9.3 is rather dated now, so Debian 3.0 is a better choice.  You'll see
www.parisc-linux.org has been updated in the last day.  Debian 3.0 ISOs
have a 2.4.17-pa32 kernel, so there may be machines where a newer kernel
would be better.  In that case, you could look in
<ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/> where you'll
find some unofficial, lightly tested, smaller (70MB) images with recent
kernels.

Richard



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> ah, you haven't been following the gcc mailing list.  due to a pressing
> need to change the c++ ABI, the current 3.1 development tree has been
> renamed to 3.2 and the erstwhile 3.2 development line has been renamed
> to 3.3.

3.1.1 has just been released.  3.2 will be released in the near future
and it will be identical to 3.1.1 except for the updates to the c++
ABI.  The 3.1 branch is now dead.  Regression fixing will continue
on the 3.2 branch after the first release.  The update to the 3.1
branch was made to accomodate the schedule of other projects (e.g.,
OpenOffice).  Since dwarf2 exception support isn't in 3.2, I doubt
this will affect hppa-linux much.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> 0.9.3 is rather dated now, so Debian 3.0 is a better choice.  You'll see
> www.parisc-linux.org has been updated in the last day.  Debian 3.0 ISOs
> have a 2.4.17-pa32 kernel, so there may be machines where a newer kernel
> would be better.  In that case, you could look in
> <ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/> where you'll
> find some unofficial, lightly tested, smaller (70MB) images with recent
> kernels.

Any plans to put together an official full iso, a 0.9.4 perhaps?

Sean


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On Tue, Jul 30, 2002 at 10:18:07AM -0600, Sean Anaya wrote:
> Any plans to put together an official full iso, a 0.9.4 perhaps?

If by that you mean a 600MB (or similar) image, I'm not sure there is
any point; Debian 3.0 CD1 is effectively that.

Richard



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> 
> 3.1.1 has just been released.  3.2 will be released in the near future
> and it will be identical to 3.1.1 except for the updates to the c++
> ABI.  The 3.1 branch is now dead.  Regression fixing will continue
> on the 3.2 branch after the first release.  The update to the 3.1
> branch was made to accomodate the schedule of other projects (e.g.,
> OpenOffice).  Since dwarf2 exception support isn't in 3.2, I doubt
> this will affect hppa-linux much.
>

dwarf2 exception support isn't in 3.2 for hppa?
I'm confused, I believed that dwarf2 exception support wasn't
goin to be in 3.1, but surely in 3.2? 

Dave, please say this a typo :)

c.


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On Tue, Jul 30, 2002 at 03:20:41PM -0400, Carlos O'Donell wrote:
> > 
> > 3.1.1 has just been released.  3.2 will be released in the near future
> > and it will be identical to 3.1.1 except for the updates to the c++
> > ABI.  The 3.1 branch is now dead.  Regression fixing will continue
> > on the 3.2 branch after the first release.  The update to the 3.1
> > branch was made to accomodate the schedule of other projects (e.g.,
> > OpenOffice).  Since dwarf2 exception support isn't in 3.2, I doubt
> > this will affect hppa-linux much.
> 
> dwarf2 exception support isn't in 3.2 for hppa?
> I'm confused, I believed that dwarf2 exception support wasn't
> goin to be in 3.1, but surely in 3.2? 

The renumbering has confused everyone (as I rather thought it might).
Old plan:	New:

3.1		3.1
3.1.1		3.1.1
3.1.2		3.2
3.2		3.3

So everything which used to read `this will be in gcc 3.2' should now read
`this will be in gcc 3.3'.  And everything which was `not in 3.1' is now
`not in 3.1 or 3.2 either'.

-- 
Revolutions do not require corporate support.


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> dwarf2 exception support isn't in 3.2 for hppa?
> I'm confused, I believed that dwarf2 exception support wasn't
> goin to be in 3.1, but surely in 3.2? 

It's not a typo.  What was 3.2 is now 3.3.  As was noted, 3.2
is going to be identical to 3.1.1 except for a c++ abi change.
3.2 should be out this week barring unforeseen problems.  The
3.1 branch has only been open for regression fixing for some
time now.

3.3 is scheduled to go into stage3 (bug fixing) on Aug. 15.
The 3.3 release is scheduled for Dec. 15.  The numbering change
hasn't affected the schedule for the next release from the
mainline.

Clear?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> 3.1.2		3.2

Although the 3.1 branch is nominally closed, it would seem possible
that somebody might want a release after 3.1.1 with the old c++ abi.
Thus, a new branch had to be created.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] SOM linker on Linux/ia32, Linux/PARISC targeting HPUX/PARISC
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Hi,

I'm looking for a linker that runs on Linux/ia32, Linux/PARISC32, or
Linux/PARISC64 but targets HPUX/PARISC32 (generates SOM).

I've seen the related emails with the subject line:
HP open sourcing the SOM linker (Fri., Nov. 19, 1999)
http://lists.parisc-linux.org/hypermail/parisc-linux/0252.html
[Semi OT] SOM Linker (Wed., Nov. 15, 2000)
http://lists.parisc-linux.org/hypermail/parisc-linux/2227.html

But no information on if such a linker was ever successfully built.

I've also tried to access the linker source code at:
ftp://puffin.external.hp.com/pub/parisc/linker
http://www.thepuffingroup.com/parisc/cvs.html
but was unable to.  Does anyone know where the PA32 linker source code can
be accessed?

On another track, does anyone know if gld has been modified to support SOM?

Regards,
Sue Ludwig



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On Tue, Jul 30, 2002 at 01:55:26PM -0700, Sue Ludwig wrote:
> I'm looking for a linker that runs on Linux/ia32, Linux/PARISC32, or
> Linux/PARISC64 but targets HPUX/PARISC32 (generates SOM).
>
> I've seen the related emails with the subject line:
> HP open sourcing the SOM linker (Fri., Nov. 19, 1999)
> http://lists.parisc-linux.org/hypermail/parisc-linux/0252.html
> [Semi OT] SOM Linker (Wed., Nov. 15, 2000)
> http://lists.parisc-linux.org/hypermail/parisc-linux/2227.html
> 
> But no information on if such a linker was ever successfully built.
> 
> I've also tried to access the linker source code at:
> ftp://puffin.external.hp.com/pub/parisc/linker
> http://www.thepuffingroup.com/parisc/cvs.html
> but was unable to.  Does anyone know where the PA32 linker source code can
> be accessed?

Wow.  Best of luck!  The parisc-linux kernel was converted from SOM
to ELF about 2 years ago, so nobody's used it recently.  You can see
the source code at http://cvs.parisc-linux.org/obsolete/linker/ If you
follow the instructions on the website, you can check out the sources with
`cvs co obsolete/linker'.

Best of luck, I don't know how easy this is going to be to make work...

Have you considered an alias which copies all the .o files to an hpux
host and runs the linker there?  ;-)

-- 
Revolutions do not require corporate support.


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SOM linker on Linux/ia32, Linux/PARISC targeting HPUX/PARISC
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> I've also tried to access the linker source code at:
> ftp://puffin.external.hp.com/pub/parisc/linker
> http://www.thepuffingroup.com/parisc/cvs.html

Try ftp://ftp.parisc-linux.org/src/linker/som-linker-1.0.tar.gz

> On another track, does anyone know if gld has been modified to support SOM?

No it hasn't.  From what I know, this would be very difficult.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: j.steindlberger@gmx.net
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Subject: [parisc-linux] IEEE1394 (Firewire iLink) - any ideas to build modules
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Hi,

did anyone succeed in building modules for an OHCI1394 card? I think the 
problem is a general leck in DMA support. As I'm not a kernel specialist I 
don't have any idea.
When trying to build a module there are dependency problems. When trying to 
build into the kernel there are missing some functions for DMA - I think.

Regards
Joerg

PS:
( System: HP9000 C360 )
  Bus  0, device   3, function  0:
    FireWire (IEEE 1394): PCI device 104c:8020 (Texas Instruments) (rev 0).
      IRQ 99.
      Master Capable.  Latency=255.  Min Gnt=3.Max Lat=4.
      Non-prefetchable 32 bit memory at 0xf2ff8000 [0xf2ff87ff].
      Non-prefetchable 32 bit memory at 0xf2ffc000 [0xf2ffffff].


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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] IEEE1394 (Firewire iLink) - any ideas to build modules
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> did anyone succeed in building modules for an OHCI1394 card? I think the 
> problem is a general leck in DMA support. As I'm not a kernel specialist I 
> don't have any idea.
> When trying to build a module there are dependency problems. When trying to 
> build into the kernel there are missing some functions for DMA - I think.

what config did you use, and what errors did you see?

i'm not sure what you mean by "a general lack in DMA support"... DMA
works quite well :)

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hello, I am using parisc linux at the moment.
But I want to install linux on another HP machine.
But I must backup all HP-UX filesystem. How I can make it?
Thanks in advance



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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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http://news.com.com/2100-1023-947325.html

I seem to have a pair of parisc boxes here. Perhaps someone at HP would
care to publically explain their actions, or chould kindly arrange for
the collection of their hardware ?






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From: "James P. Kinney III" <jkinney@localnetsolutions.com>
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Subject: Re: [parisc-linux] HP attempts to silence security researchers
	using the DMCA
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I think what we have is another classic example of managerial
cranial-rectal overlap. From that vantage point, face to face meetings
with reality are much more difficult than meeting a lawyer.

It's a shame that so many talented people at HP are going to get lumped
into the bad image of the corporation because of the (mis)leadership of
the management.

On Wed, 2002-07-31 at 09:59, Alan Cox wrote:
>=20
>=20
> http://news.com.com/2100-1023-947325.html
>=20
> I seem to have a pair of parisc boxes here. Perhaps someone at HP would
> care to publically explain their actions, or chould kindly arrange for
> the collection of their hardware ?
>=20
>=20
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
--=20
James P. Kinney III   \Changing the mobile computing world/
President and CEO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint =3D 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7=20



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Alan Cox wrote:
> http://news.com.com/2100-1023-947325.html

*sigh*. :^(

> I seem to have a pair of parisc boxes here. Perhaps someone at HP would
> care to publically explain their actions, or chould kindly arrange for
> the collection of their hardware ?

The battle inside HP has started. I'm not privy to details.
And I don't want to hear them right now.
I'm looking forward to the public explanation as well.

But this is a parisc-linux mailing list.  I don't want to turn it into
a "Bash HP because Kent Ferson is an ..." forum.  Got to /. for that.

Or use the "Contact Us" link on http://www.hp.com.
Please include links to relevant News articles and express your
concerns in an manner as civil as Alan Cox has. Your email will
get directed to the right "new HP" divisions.

thanks,
grant


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: Re: [parisc-linux] HP attempts to silence security researchers using the DMCA
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--- Grant Grundler <grundler@dsl2.external.hp.com> wrote:
> Alan Cox wrote:
> > http://news.com.com/2100-1023-947325.html
> 
> *sigh*. :^(
> 
> > I seem to have a pair of parisc boxes here. Perhaps someone at HP
> would
> > care to publically explain their actions, or chould kindly arrange
> for
> > the collection of their hardware ?
> 
> The battle inside HP has started. I'm not privy to details.
> And I don't want to hear them right now.
> I'm looking forward to the public explanation as well.
> 
> But this is a parisc-linux mailing list.  I don't want to turn it
> into
> a "Bash HP because Kent Ferson is an ..." forum.  Got to /. for that.
> 
> Or use the "Contact Us" link on http://www.hp.com.
> Please include links to relevant News articles and express your
> concerns in an manner as civil as Alan Cox has. Your email will
> get directed to the right "new HP" divisions.
> 
> thanks,
> grant


Being an HP employee (not a Compaq now HP employee) for the last 5
years I can't make any factual comments about this particular issue
since I work in the HP-UX realm.  True64 was a DEC product, then
Compaq, and now ours.  Although the legal portion of the merger is
complete, many of the opperations at HP and Compaq have remained
unchanged.  I still don't work on Compaq equipment and they don't work
on ours.  I will not ever work on Compaq/DEC/Tandom stuff.  Being one
company now on paper doesn't necessarily mean that the statements from
the article came from the original HP side.  Like I said earlier
though....mearly speculation.  There are many differences between the
way HP does business and the way the Compaq does business.  Eventually
it will be one in the same, but right now we are still in a major
transition period.  I'm not excusing the suits for their statements
because I don't believe that exposing a security hole is a bad thing.
Having had a Top Secret security clearance and worked at both the
Pentagon and the National Security Agency I am very aware of the need
for security.  I still would rather work for HP than Microsoft...LOL

derek

__________________________________________________
Do You Yahoo!?
Yahoo! Health - Feel better, live better
http://health.yahoo.com


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From: Joel Soete <joel.soete@freebel.net>
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Stephan Trajkoff wrote:
> Hello, I am using parisc linux at the moment.
> But I want to install linux on another HP machine.
> But I must backup all HP-UX filesystem. How I can make it?
> Thanks in advance
> 


With HP-UX > 10.20 the easiest way is to use 'Ignite' (see application 
CDs or web) with a famous cmd looking like 'make_recovery_tape'. With -A 
option it will build a boot tape that will allow you to quickly recover 
your system. (read carefully man page to be sure it match your need)

and fbackup/frestore for the rest



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From: Ryan Bradetich <rbradetich@uswest.net>
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Alan,

It took a few days (huge amount of internal discussion within HP) but
it looks like HP has finally comes to it senses:

http://news.com.com/2100-1023-947740.html

Thanks to everyone inside and outside of HP that convinced HP management
to do the right thing (TM).

Thanks,

- Ryan


On Wed, 2002-07-31 at 07:59, Alan Cox wrote:
> 
> 
> http://news.com.com/2100-1023-947325.html
> 
> I seem to have a pair of parisc boxes here. Perhaps someone at HP would
> care to publically explain their actions, or chould kindly arrange for
> the collection of their hardware ?
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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From: "Gert-Jan van der Stroom" <gertjan@nki.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Unable to install debian 3.0 hppa nonus on HP9000 E55
Date: Fri, 2 Aug 2002 18:41:38 +0200
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Hi, I am trying to install linux on a HP9000 E55.
When I boot from cd, I get the following:

Linux version 2.4.17-32 (root@paer) (gcc version 3.0.4) #1 Sat Mar 16
17:09:00 M
ST 2002
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00004831 00000481 00000000 00000000 07becb48 100000f0 00000004
00000072 00
000072
vers 0000000b
model 9000/856
Total Memory: 64 Mb
initrd: 13d65000-13fef286
initrd: reserving 03d65000-03fef286 (mem_max 04000000)
pagetable_init
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: ramdisk_size=8192 root=/dev/ram console=ttyS0
TERM=vt102 pa
lo_kernel=0/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 95.84 BogoMIPS
Memory: 58864k available
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Searching for devices...
Found devices:
1. Java BC GSC+ Port (7) at 0xfffb8000 [56], versions 0x503, 0x0, 0xc
2. WB-96 Core BA (11) at 0xf0100000 [60], versions 0x11, 0x1, 0x81,
additional
addresses: 0xf010c000
3. WB-96 Core LAN (802.3) (10) at 0xf0107000 [60/6], versions 0x11, 0x1,
0x8a
4. WB-96 (E45) (0) at 0xfffbe000 [62], versions 0x483, 0x1, 0x4
5. Memory (1) at 0xfffbf000 [63], versions 0x25, 0x0, 0x9
CPU(s): 1 x PA7100LC (PCX-L) at 96.000000 MHz
Lasi version 0 at 0xf0100000 found.
LED display at f010c000 registered
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
Journalled Block Device driver loaded
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI en
abled
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x20028000 to 0x20028740:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x20028000 to 0x20028b80:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

--cut-- repeated 3 lines above

Dumping Stack from 0x20050000 to 0x20057bc0:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x20058000 to 0x20058000:

Kernel Fault: Code=15 regs=10058000 (Addr=20050004)

YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000011100001110 Not tainted
r00-03 00000000 10303810 10102494 20050000
r04-07 102b3000 20050000 20057bc0 0000002f
r08-11 10315fe4 10303b4c 10000080 10303810
r12-15 00000000 00000001 00000000 f0000368
r16-19 10057bc0 00000000 00000000 00000000
r20-23 10303810 00006e97 00000000 000003a8
r24-27 00000001 00000001 10303b00 102f0010
r28-31 00000030 00000000 10058000 00000040
sr0-3 00000000 00000000 00000000 00000000
sr4-7 00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10101e60 10101e64
IIR: 0c681097 ISR: 00000000 IOR: 20050004
CPU: 0 CR30: 10028000 CR31: 103a0000
ORIG_R28: 00000000

Do you know the solution ?

Thanks in advance,

Gert-Jan van der Stroom



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Subject: Re: [parisc-linux] Unable to install debian 3.0 hppa nonus on HP9000 E55
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On Fri, 2 Aug 2002 18:41:38 +0200
"Gert-Jan van der Stroom" <gertjan@nki.nl> wrote:

> Hi, I am trying to install linux on a HP9000 E55.
E-Class servers are only supported diskless at the moment, and with recent kernels.
You can use one of the unofficial lifimages *tagged -PDC-* found on:
http://pateam.esiee.fr/cd-images/lifimages/
or on
ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/

Also check the mailing list for Christoph Plattner's mails:
http://www.parisc-linux.org/mailing-lists/index.html
He is working on E-Class.


-- 
Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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From: Joel Soete <joel.soete@freebel.net>
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Subject: [parisc-linux] Linux-2.4.19 released
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Xref: news.gmane.org gmane.linux.ports.parisc:15706

Hi all,

Now that Linux-2.4.19 is released what will be programm for pl?

Just to now how to be helpfull in right direction.

Joel



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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Linux-2.4.19 released
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Xref: news.gmane.org gmane.linux.ports.parisc:15707

On Sat, 2002-08-03 at 19:56, Joel Soete wrote:
> Hi all,
> 
> Now that Linux-2.4.19 is released what will be programm for pl?
> 
> Just to now how to be helpfull in right direction.

I've sent Marcelo the main parisc diffs and asked him to merge them for
2.4.20-pre1. Thats basically all the stuff which is parisc unique. If
that works out ok then I can start feeding him the other stuff piece by
piece after its been tested in -ac



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Subject: Re: [parisc-linux] "unaligned access to ... at ip=..." problem with
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Xref: news.gmane.org gmane.linux.ports.parisc:15708

Hey Randolph,

Randolph Chung wrote:
>>It seems harmless but not sure.
> 
> 
> well.... in general this is not a problem, however....
> 
> Fleedwood found a bug in the unaligned handler last week. it doesn't
> handle the pre/post increment cases of load and store, and there may be
> some cases where these messages will indicate the cause of errors.
> 
> I'll look into fixing this, but it might take some time.

I would just like to know if you already have the opportunity to have a 
look for a fix of this stuff (I know you are very busy this time and do 
not want to stress, just want to got news)

Thanks in advance,
	Joel




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From: Joel Soete <joel.soete@freebel.net>
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Hi all,

I just discover the last release of GDB.

Would it be already operational for hppa?

Is somebody already test its gui brother called insight?

thanks in advance for advises,
	Joel




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Subject: Re: [parisc-linux] Linux-2.4.19 released
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On Sat, Aug 03, 2002 at 06:56:29PM +0000, Joel Soete wrote:
> Hi all,
> 
> Now that Linux-2.4.19 is released what will be programm for pl?

i suspect we'll merge 2.4.19 into our tree and release that.  i don't
know how much enthusiasm there still is for working on 2.4 with 2.5
coming on so well.

-- 
Revolutions do not require corporate support.


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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Linux-2.4.19 released
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Matthew Wilcox wrote:
> i suspect we'll merge 2.4.19 into our tree and release that.  i don't
> know how much enthusiasm there still is for working on 2.4 with 2.5
> coming on so well.

I've not been doing much for 2.5 and I'd like to see the folks who are
beating on 2.5.x not get distract by this.
If someone (paul?) drops 2.4.19 in our CVS and tells me which files
have conflicts, I'd be happy to take a whack at it.

thanks,
grant


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On Sun, 2002-08-04 at 00:48, Grant Grundler wrote:
> I've not been doing much for 2.5 and I'd like to see the folks who are
> beating on 2.5.x not get distract by this.
> If someone (paul?) drops 2.4.19 in our CVS and tells me which files
> have conflicts, I'd be happy to take a whack at it.

The merge work I've done to feed on to Marcelo has had very close to
zero conflicts so it shouldnt be too bad.



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Grant Grundler wrote:
> Log message:
> 2.4.18-pa62 acenic-0.91+minor fix
> Jes Sorensen asked me to test his latest driver...besides
> one minor build fix in acenic.h it loaded and booted.
> 
> First time I tried the machine crashed. I didn't have /sbin/hotplug
> but CONFIG_HOTPLUG was enabled. May this serve as a reminder
> to others...

diff against whatever we had in our CVS before:
	ftp://ftp.parisc-linux.org/patches/acenic-0.91-ggg.diff

and the original tarball (drivers/net/acenic.[ch]):
	ftp://ftp.parisc-linux.org/patches/acenic-0.91.tar.gz

This line of output:
eth1: Enabling PCI Memory Mapped access - was not enabled by BIOS/Firmware

The driver isn't using pci_enable_device() and it should.
Jes is aware of the problem.

But I'm happy...another HP IO card supported by parisc-linux. ;^)

I tried to run netperf but netserver segfaults on parisc.
I'll rebuild to see if compiler changes have fixed netserver and try again.
Anyway, I need to figure out which other 1000SX card is connected
 to the switch.

grant

a500:~# modprobe acenic
acenic.c: v0.91 07/31/2002  Jes Sorensen, linux-acenic@SunSITE.dk
                            http://home.cern.ch/~jes/gige/acenic.html
eth1: Enabling PCI Memory Mapped access - was not enabled by BIOS/Firmware
eth1: Alteon AceNIC Gigabit Ethernet at 0xfffffffffb000000, irq 322
  Tigon II (Rev. 6), Firmware: 12.4.11, MAC: 00:30:6e:04:80:68
  PCI bus width: 64 bits, speed: 66MHz, latency: 128 clks
eth1: Firmware up and running
eth1: Optical link UP (Full Duplex, Flow Control: TX RX)
a500:~# uname -a
Linux a500 2.4.18-pa61 #4 SMP Sat Aug 3 01:00:08 PDT 2002 parisc64 unknown unknown GNU/Linux
a500:~# ifconfig eth1
eth1      Link encap:Ethernet  HWaddr 00:30:6E:04:80:68  
          inet addr:192.168.0.21  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:40 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100 
          RX bytes:8951 (8.7 KiB)  TX bytes:1522 (1.4 KiB)
          Interrupt:66 



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Grant Grundler wrote:
> This line of output:
> eth1: Enabling PCI Memory Mapped access - was not enabled by BIOS/Firmware
> 
> The driver isn't using pci_enable_device() and it should.
> Jes is aware of the problem.

Jes,
Another TODO item.

Privately, Mathew Wilcox observed cli() is an obsolete interface
and doesn't scale well on SMP boxes. This version of acenic won't
build on 2.5.30 since it still uses cli().  Need to replace that
with spin_lock_irqsave() (or spin_lock()) calls.

hth,
grant



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Grant Grundler wrote:
> Privately, Mathew Wilcox observed cli() is an obsolete interface
> and doesn't scale well on SMP boxes.

Matthew,
*sigh*. I looked at the code and it uses __cli() (not cli()).
On parisc thats equivalent to local_irq_disable().
Should Jes be using local_irq_disable() directly?

thanks,
grant


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> 
> I've not been doing much for 2.5 and I'd like to see the folks who are
> beating on 2.5.x not get distract by this.
> If someone (paul?) drops 2.4.19 in our CVS and tells me which files
> have conflicts, I'd be happy to take a whack at it.
> 
> thanks,
> grant

I agree. And FWIW, I'd be more than happy to help. 
2.4.x is essential for the cluster work I'm doing :)

c.


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Subject: [parisc-linux] Palo: cmdline and commanline has different limits?
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Hi Paul,

I just notice a small problem:

In palo/palo/palo.c at line 720:
	...
	if (strlen(commandline) > 255)
	...

OTC in palo/lib/common.h in struct firstblock at line 46:

     char cmdline[128];          /* Up to 127 bytes of text plus a \0 */

     unsigned char pad1[0xf0 - 8 - 7 * sizeof (int) - 128];


I do not know yet if pad1 can be removed so that cmdline could reach 204 
[240-8-7*(sizeof int = 4?)] char lenght, also I prefer to let you choise.

Joel



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Hi Alan,

I try to send you some blabla in answer to some mail but since yesterday 
evening I did not reach anynore to join you:

  - These recipients of your message have been processed by the mail server:
alan@lxorguk.ukuu.org.uk; Failed; 5.1.2 (bad destination system address)

     Remote MTA lightning.swansea.uk.linux.org: network error


  - SMTP protocol diagnostic: 554 SMTP service not available (failed to 
find host name from IP address)

Am I alone? (if yes I would like to advise my isp)

Thanks in advance,
	Joel



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On Sun, 2002-08-04 at 20:59, Joel Soete wrote:
>      Remote MTA lightning.swansea.uk.linux.org: network error
> 
> 
>   - SMTP protocol diagnostic: 554 SMTP service not available (failed to 
> find host name from IP address)

Its one of the antispam tests. Your IP address doesnt have a reverse DNS
entry so it regards it as dubious. Probably a slightly excessive test.
I've turned it off for a bit to see what happens



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From: James Srinivasan <james_srinivasan@yahoo.com>
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Subject: [parisc-linux] HIL Mouse device cannot be opened
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I've followed the HOWTO for using a HIL mouse with
XFree86 on my Apollo 715/33 but get the error message:

xf86OpenSerial: Cannot open device /dev/input/mice No
such device

when executing startx. Indeed, cat /dev/input/mice
also gives "No such device".

I upgraded the kernel using apt-get - does the 2.4.18
kernel available through this method support the HIL
drivers?

Many Thanks,

James

__________________________________________________
Do You Yahoo!?
Yahoo! Health - Feel better, live better
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> I've followed the HOWTO for using a HIL mouse with
> XFree86 on my Apollo 715/33 but get the error message:
> 
> xf86OpenSerial: Cannot open device /dev/input/mice No
> such device
> 
> when executing startx. Indeed, cat /dev/input/mice
> also gives "No such device".
> 
> I upgraded the kernel using apt-get - does the 2.4.18
> kernel available through this method support the HIL
> drivers?
> 
> Many Thanks,
> 
> James

Double check that you have:

- When using devfs
	= Enabled input layer support in the kernel
- When not using devfs
	= Have the device node entries for /dev/input/*
	= And enabled input layer support in the kernel.

c.



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Subject: Re: [parisc-linux] Palo: cmdline and commanline has different limits?
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> Hi Paul,
> I just notice a small problem:
> In palo/palo/palo.c at line 720:
> 	...
> 	if (strlen(commandline) > 255)
> 	...
> OTC in palo/lib/common.h in struct firstblock at line 46:
>     char cmdline[128];          /* Up to 127 bytes of text plus a \0 */
>     unsigned char pad1[0xf0 - 8 - 7 * sizeof (int) - 128];
> 
> I do not know yet if pad1 can be removed so that cmdline could reach 204 
> [240-8-7*(sizeof int = 4?)] char lenght, also I prefer to let you choise.
> 
> Joel

I don't see why not? Would 200 characters be enough for your application?

I do think that "> 255" should be changed in palo.c

To push it out further would require teaching palo about 
both formats (and understanding why the comment mentions 
that all the data must fit in 256 byes).

c.


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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] 2.4.19 tree merged in.
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Hello parisc-linux hackers,

The merge upto linux 2.4.19 was just committed into the parisc-linux
cvs tree.  This kernel boots fine on my 712 and C200.

Thanks,

- Ryan





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This is a multi-part message in MIME format.

------=_NextPart_000_0055_01C23C64.9A85C790
Content-Type: text/plain;
	charset="Windows-1252"
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Hi All,

Well I've just got my C3600 booting, however I have a problem with my =
fxe5.  Even with X configured for the fb device, the start log for X =
reports "unknown device".

Can anyone help, do I need to do something special to get X running. I'm =
used the STI kernel patch netinst image.

Thnaks in advance.
Alex

------=_NextPart_000_0055_01C23C64.9A85C790
Content-Type: text/html;
	charset="Windows-1252"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dwindows-1252">
<META content=3D"MSHTML 6.00.2716.2200" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV>
<DIV><FONT face=3D"Courier New" size=3D2>Hi All,</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>Well I've just got my C3600 =
booting,=20
however I have a problem with my fxe5.&nbsp; Even with X configured for =
the fb=20
device, the start log for X reports "unknown device".</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>Can anyone help, do I need to =
do something=20
special to get X running. I'm used the STI kernel patch netinst=20
image.</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>Thnaks in advance.</FONT></DIV>
<DIV><FONT face=3D"Courier New" =
size=3D2>Alex</FONT></DIV></DIV></BODY></HTML>

------=_NextPart_000_0055_01C23C64.9A85C790--


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Hi Alan,

Alan Cox wrote:
> On Sun, 2002-08-04 at 20:59, Joel Soete wrote:
> 
>>     Remote MTA lightning.swansea.uk.linux.org: network error
>>
>>
>>  - SMTP protocol diagnostic: 554 SMTP service not available (failed to 
>>find host name from IP address)
> 
> 
> Its one of the antispam tests. Your IP address doesnt have a reverse DNS
> entry so it regards it as dubious.
Sorry, don't know how isp configure its services?
> Probably a slightly excessive test.
> I've turned it off for a bit to see what happens
> 

Thanks a lot for info :) ,
	Joel



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Subject: Re: [parisc-linux] 2.4.19 tree merged in.
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Ryan Bradetich wrote:
> Hello parisc-linux hackers,
> 
> The merge upto linux 2.4.19 was just committed into the parisc-linux
> cvs tree.  This kernel boots fine on my 712 and C200.
> 

Great news, as soon as I will be back to office (2days) I will test it 
on my b180 and b2k :)

Thanks for info,
	Joel




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Subject: Re: [parisc-linux] C3600 + Xfree86
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Hey Alex,

Alex Green wrote:
> Hi All,
>  
> Well I've just got my C3600 booting,
Great
> however I have a problem with my 
> fxe5.  Even with X configured for the fb device, the start log for X 
> reports "unknown device".
>  
> Can anyone help, do I need to do something special to get X running. I'm 
> used the STI kernel patch netinst image.
>  
Do you try to use XF86Config-4 from ftp://ftp.parisc-linux.org/XFree86/

Just pay attention that the actual resolution of your screen (at boot 
prompt you should find a menu which can give you this info) must match 
the 'Mode ...' you set in 'SubSection "Display"' for the rest it should 
works.

Good luck,
	Joel



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From: "Alex Green" <alexdgreen@hotmail.com>
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Subject: Re: [parisc-linux] C3600 + Xfree86
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Ok, I'll look at that config file, however if I do "dmesg | grep fb" it
says:

STI PCI Graphics ROM.....xxxxx ,fb at .... xxxxxxxxxxxx (32Mb)
stifb: Unsupported gfx card id 0x35acda30

Will using the X config below make X work?... how do I find the
resolution... using fbset ???, I think it reports that there is no
/dev/fb0... do i need to create this or is this another problem?

Thanks again
Alex

----- Original Message -----
From: "Joel Soete" <joel.soete@freebel.net>
To: "Alex Green" <alexdgreen@hotmail.com>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Monday, August 05, 2002 12:04 PM
Subject: Re: [parisc-linux] C3600 + Xfree86


> Hey Alex,
>
> Alex Green wrote:
> > Hi All,
> >
> > Well I've just got my C3600 booting,
> Great
> > however I have a problem with my
> > fxe5.  Even with X configured for the fb device, the start log for X
> > reports "unknown device".
> >
> > Can anyone help, do I need to do something special to get X running. I'm
> > used the STI kernel patch netinst image.
> >
> Do you try to use XF86Config-4 from ftp://ftp.parisc-linux.org/XFree86/
>
> Just pay attention that the actual resolution of your screen (at boot
> prompt you should find a menu which can give you this info) must match
> the 'Mode ...' you set in 'SubSection "Display"' for the rest it should
> works.
>
> Good luck,
> Joel
>



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Joel Soete wrote:
> Hey Alex,
> 
> Alex Green wrote:
> 
>> Hi All,
>>  
>> Well I've just got my C3600 booting,
> 
> Great
> 
>> however I have a problem with my fxe5.  Even with X configured for the 
>> fb device, the start log for X reports "unknown device".
>>  
>> Can anyone help, do I need to do something special to get X running. 
>> I'm used the STI kernel patch netinst image.
>>  
> 
> Do you try to use XF86Config-4 from ftp://ftp.parisc-linux.org/XFree86/
> 

Or may be (better?) in ftp://ftp.parisc-linux.org/kernels/b180/: 
XF86Config-4.joel or XF86Config-4.ggg

Joel



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On Sun, Aug 04, 2002 at 05:25:59PM -0600, Ryan Bradetich wrote:
> Hello parisc-linux hackers,
> 
> The merge upto linux 2.4.19 was just committed into the parisc-linux
> cvs tree.  This kernel boots fine on my 712 and C200.

For me, it doesn't even BUILD!

(I build it on the box itself 712/80, gecko):

make[3]: Entering directory /usr/src/linux/arch/parisc/math-emu'
make[3]: Nothing to be done for modules_install'.
make[3]: Leaving directory /usr/src/linux/arch/parisc/math-emu'
cd /usr/src/linux/debian/tmp-image/lib/modules/2.4.19-pa0; \
mkdir -p pcmcia; \
find kernel -path '*/pcmcia/*' -name '*.o' | xargs -i -r ln -sf ../{}
pcmcia
if [ -r System.map ]; then /sbin/depmod -ae -F System.map -b
/usr/src/linux/debian/tmp-image -r 2.4.19-pa0; fi
depmod: *** Unresolved symbols in
/usr/src/linux/debian/tmp-image/lib/modules/2.4.19-pa0/kernel/drivers/block/loop.o
depmod:         __down_Re9269c59
depmod:         flush_kernel_dcache_page_Re8500931
depmod:         __down_interruptible_R56f0c46c
depmod:         grab_cache_page_Rb8766631
depmod:         register_blkdev_Rd300b725
depmod:         fput_R3d1d1a12
depmod:         $$remI
depmod:         kmem_cache_free_R891f2686
depmod:         $$remU
depmod:         kmalloc_R93d4cfe6
depmod:         blksize_size_R2f30b4b6
depmod:         do_generic_file_read_Rce441edc
depmod:         memset
depmod:         __free_pages_R4d8ebf0c
depmod:         register_disk_R2a459389
depmod:         $$divI
depmod:         refile_buffer_Reea9d23d
depmod:         $$divU
depmod:         kernel_thread_R7e9ebb05
depmod:         lcopy_to_user_R9495ad99
depmod:         generic_make_request_R9c66707e
depmod:         blk_ioctl_Re7800428
depmod:         unlock_page_R7859638c
depmod:         flush_signals_R013d45f8
depmod:         printk_Rdd132261
depmod:         fget_R5396ec14
depmod:         bh_cachep_Rdcc0bb37
depmod:         zone_table_R74ddb3f9
depmod:         blk_queue_make_request_R93ad7aa7
depmod:         tq_disk_R5373dbb6
depmod:         sprintf_R1d26aa98
depmod:         lcopy_from_user_R709cd167
depmod:         daemonize_Rd66a354a
depmod:         $$mulI
depmod:         exit_files_Rb894776d
depmod:         memcpy
depmod:         blk_size_Ra2e0a082
depmod:         kfree_R037a0cba
depmod:         kmem_cache_alloc_R75810956
depmod:         schedule_timeout_Rd62c833f
depmod:         __up_R67ea47fd
depmod:         __run_task_queue_R3889b11c
depmod:         strncpy_R328a05f1
depmod:         is_read_only_R740274ca
depmod:         _alloc_pages_R5fc0da8d
depmod:         invalidate_bdev_R78bde981
depmod:         set_blocksize_Rc75d857c
depmod:         unregister_blkdev_Reac1c4af
depmod:         set_device_ro_Rdc036ebb
depmod:         blk_dev_R66c70949
depmod: *** Unresolved symbols in
/usr/src/linux/debian/tmp-image/lib/modules/2.4.19-pa0/kernel/drivers/cdrom/cdrom.o
depmod:         register_sysctl_table_R3f9a7ec6
depmod:         unregister_sysctl_table_Ra973a840
depmod:         $$remI
depmod:         kmalloc_R93d4cfe6
depmod:         proc_dointvec_R2f04908a
depmod:         memset
depmod:         $$divI
depmod:         lcopy_to_user_R9495ad99
depmod:         printk_Rdd132261
depmod:         sprintf_R1d26aa98
depmod:         lcopy_from_user_R709cd167
depmod:         check_disk_change_R11d4076d
depmod:         $$mulI
depmod:         memcpy
depmod:         kfree_R037a0cba
depmod:         proc_dostring_R272d14f4
depmod:         strcpy_Re914e41e
depmod: *** Unresolved symbols in
/usr/src/linux/debian/tmp-image/lib/modules/2.4.19-pa0/kernel/drivers/char/lp.o
depmod:         __down_interruptible_R56f0c46c
depmod:         kmalloc_R93d4cfe6
depmod:         register_chrdev_R18f7b46f
depmod:         unregister_chrdev_Rc192d491
depmod:         $$divI
depmod:         schedule_R01000e51
depmod:         $$divU
depmod:         lcopy_to_user_R9495ad99
depmod:         printk_Rdd132261
depmod:         jiffies_R0da02d67
depmod:         sprintf_R1d26aa98
depmod:         lcopy_from_user_R709cd167
depmod:         $$mulI
depmod:         simple_strtoul_R20000329
depmod:         interruptible_sleep_on_timeout_R134602fd
depmod:         kfree_R037a0cba
depmod:         boot_cpu_data_Rc81f4886
depmod:         __up_R67ea47fd
depmod:         strncmp_R84b183ae
depmod: *** Unresolved symbols in
/usr/src/linux/debian/tmp-image/lib/modules/2.4.19-pa0/kernel/drivers/char/n_hdlc.o
depmod:         tty_hung_up_p_Raabff69e
depmod:         tty_register_ldisc_R212858d6
depmod:         n_tty_ioctl_R2efb9ad9
depmod:         __pollwait_Rdbb4d91a
depmod:         add_wait_queue_Rde917559
depmod:         kill_fasync_R0bea745a
depmod:         kmalloc_R93d4cfe6
depmod:         memset
depmod:         schedule_R01000e51
depmod:         lcopy_to_user_R9495ad99
depmod:         __wake_up_Rf0f2f792
depmod:         printk_Rdd132261
depmod:         interruptible_sleep_on_R52b04435
depmod:         lcopy_from_user_R709cd167
depmod:         memcpy
depmod:         kfree_R037a0cba
depmod:         remove_wait_queue_Rd435d44b
depmod: *** Unresolved symbols in
/usr/src/linux/debian/tmp-image/lib/modules/2.4.19-pa0/kernel/drivers/hil/hilkbd.o
depmod:         disable_irq_Ra44762a4
depmod:         request_irq_Ra25b351e
depmod:         unregister_parisc_driver_R74db4b32
depmod:         printk_Rdd132261
depmod:         free_irq_Rf20dabd8
depmod:         register_parisc_driver_R56e5494c
depmod:         register_ps2_keybfuncs_R50f75b19
depmod: *** Unresolved symbols in
/usr/src/linux/debian/tmp-image/lib/modules/2.4.19-pa0/kernel/drivers/input/input.o
depmod:         mod_timer_R1f13d309
depmod:         register_chrdev_R18f7b46f
depmod:         unregister_chrdev_Rc192d491
depmod:         printk_Rdd132261
depmod:         jiffies_R0da02d67
depmod:         del_timer_Rfc62f16d
depmod:         sprintf_R1d26aa98
depmod:         try_inc_mod_count_R133c9d8f
depmod: *** Unresolved symbols in
/usr/src/linux/debian/tmp-image/lib/modules/2.4.19-pa0/kernel/drivers/input/keybdev.o
depmod:         kmalloc_R93d4cfe6
depmod:         memset
depmod:         printk_Rdd132261
depmod:         kbd_ledfunc_Rfa67cc5f
depmod:         keyboard_tasklet_R28aa0faa
depmod:         kfree_R037a0cba
depmod:         __tasklet_schedule_Rf397b9aa
depmod:         handle_scancode_Rd3d6a2f1
depmod: *** Unresolved symbols in
/usr/src/linux/debian/tmp-image/lib/modules/2.4.19-pa0/kernel/drivers/input/mousedev.o
depmod:         __pollwait_Rdbb4d91a
depmod:         add_wait_queue_Rde917559
depmod:         kill_fasync_R0bea745a
depmod:         kmalloc_R93d4cfe6
depmod:         fasync_helper_Rf75cd16e
depmod:         memset
depmod:         $$divI
depmod:         schedule_R01000e51
depmod:         lcopy_to_user_R9495ad99
depmod:         __wake_up_Rf0f2f792
depmod:         printk_Rdd132261
depmod:         $$mulI
depmod:         kfree_R037a0cba
depmod:         remove_wait_queue_Rd435d44b
depmod:         add_mouse_randomness_R70507c97

etc.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
This signature was added just to have one. ;-)



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Subject: Betr.: Re: [parisc-linux] 2.4.19 tree merged in.
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>On Sun, Aug 04, 2002 at 05:25:59PM -0600, Ryan Bradetich wrote:
>> Hello parisc-linux hackers,
>>=20
>> The merge upto linux 2.4.19 was just committed into the parisc-linux
>> cvs tree.  This kernel boots fine on my 712 and C200.
>
>For me, it doesn't even BUILD!
>
There is a noxious problem where the latest debian modutils are still at
2.4.15, and kernel-2.4.19 needs newer modutils. This can be solved
by downloading a newer version of modutils (2.4.19 is the latest, IIRC) =
and
installing those. The symptoms of too old modutils are lot of unresolved
symbols - like  you see.

Good luck,
Jurriaan



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Am 05.08.2002 um 14:51:56 +0200 schrieb Jurriaan Kalkman folgendes:

> There is a noxious problem where the latest debian modutils are still at
> 2.4.15, and kernel-2.4.19 needs newer modutils. This can be solved
> by downloading a newer version of modutils (2.4.19 is the latest, IIRC) and
> installing those. The symptoms of too old modutils are lot of unresolved
> symbols - like  you see.

I see. Ain't there a recent Debian package for modutils?
I'm tracking unstable...

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
Is engaged in a staring contest with a pack of evil dogs 



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there is only the 2.4.15 pkgs in the debian trees (stable, unstable and
testing)

where can the new modutils be retrieved from?

Thnx
----- Original Message -----
From: "Ralf Hildebrandt" <Ralf.Hildebrandt@charite.de>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Monday, August 05, 2002 3:26 PM
Subject: Re: Betr.: Re: [parisc-linux] 2.4.19 tree merged in.


> Am 05.08.2002 um 14:51:56 +0200 schrieb Jurriaan Kalkman folgendes:
>
> > There is a noxious problem where the latest debian modutils are still at
> > 2.4.15, and kernel-2.4.19 needs newer modutils. This can be solved
> > by downloading a newer version of modutils (2.4.19 is the latest, IIRC)
and
> > installing those. The symptoms of too old modutils are lot of unresolved
> > symbols - like  you see.
>
> I see. Ain't there a recent Debian package for modutils?
> I'm tracking unstable...
>
> --
> Ralf Hildebrandt (Im Auftrag des Referat V A)
Ralf.Hildebrandt@charite.de
> Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450
570-155
> Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450
570-916
> Why you can't find your system administrators:
> Is engaged in a staring contest with a pack of evil dogs
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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>there is only the 2.4.15 pkgs in the debian trees (stable, unstable and
>testing)
>
>where can the new modutils be retrieved from?
>
a single google-query would have shown they live in=20

/pub/linux/utils/kernel/moduitls/v2.4

in every kernel mirror you can find. I haven't tested newer versions on
pa-risc, BTW.

Good luck,
Jurriaan



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Subject: [parisc-linux] Compiling 2.4.19-pa0
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Xref: news.gmane.org gmane.linux.ports.parisc:15735

Hi,

I'm trying to compile the latest kernel source from the parisc-linux ftp,
2.4.19-pa0 I belive and I get the following errors while doing the "make
vmlinux":

sys_parisc32.c:351: parse error before "__kernel_time_t32"
sys_parisc32.c:351: warning: no semicolon at end of struct or union
sys_parisc32.c:352: warning: type defaults to `int' in declaration of
`modtime'
sys_parisc32.c:352: warning: data definition has no type or storage class
sys_parisc32.c: In function `sys32_utime':
sys_parisc32.c:357: storage size of `times32' isn't known
sys_parisc32.c:357: warning: unused variable `times32'
sys_parisc32.c: At top level:
sys_parisc32.c:386: parse error before "__kernel_clock_t32"
sys_parisc32.c:386: warning: no semicolon at end of struct or union
sys_parisc32.c:387: warning: type defaults to `int' in declaration of
`tms_stime'
sys_parisc32.c:387: warning: data definition has no type or storage class
sys_parisc32.c:388: parse error before "tms_cutime"
sys_parisc32.c:388: warning: type defaults to `int' in declaration of
`tms_cutime'
sys_parisc32.c:388: warning: data definition has no type or storage class
sys_parisc32.c:389: parse error before "tms_cstime"
sys_parisc32.c:389: warning: type defaults to `int' in declaration of
`tms_cstime'
sys_parisc32.c:389: warning: data definition has no type or storage class
sys_parisc32.c: In function `sys32_times':
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c: At top level:
sys_parisc32.c:414: parse error before "__kernel_off_t32"
sys_parisc32.c:414: warning: no semicolon at end of struct or union
sys_parisc32.c:415: warning: type defaults to `int' in declaration of
`l_len'
sys_parisc32.c:415: warning: data definition has no type or storage class
sys_parisc32.c:416: parse error before "l_pid"
sys_parisc32.c:416: warning: type defaults to `int' in declaration of
`l_pid'
sys_parisc32.c:416: warning: data definition has no type or storage class
sys_parisc32.c: In function `get_flock':
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c: In function `put_flock':
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c: In function `sys32_sysctl':
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:520: warning: cast to pointer from integer of different size
sys_parisc32.c:520: warning: cast to pointer from integer of different size
sys_parisc32.c:521: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c: At top level:
sys_parisc32.c:596: parse error before "time_t32"
sys_parisc32.c:596: warning: type defaults to `int' in declaration of
`time_t32'
sys_parisc32.c:596: warning: data definition has no type or storage class
sys_parisc32.c:621: parse error before '*' token
sys_parisc32.c:622: warning: function declaration isn't a prototype
sys_parisc32.c: In function `sys32_time':
sys_parisc32.c:624: parse error before "now32"
sys_parisc32.c:626: `tloc' undeclared (first use in this function)
sys_parisc32.c:626: (Each undeclared identifier is reported only once
sys_parisc32.c:626: for each function it appears in.)
sys_parisc32.c:627: `now32' undeclared (first use in this function)
sys_parisc32.c:623: warning: unused variable `now'
sys_parisc32.c:631: warning: control reaches end of non-void function
sys_parisc32.c: At top level:
sys_parisc32.c:786: parse error before "pid"
sys_parisc32.c:788: warning: function declaration isn't a prototype
sys_parisc32.c: In function `sys32_wait4':
sys_parisc32.c:789: `ru' undeclared (first use in this function)
sys_parisc32.c:790: `pid' undeclared (first use in this function)
sys_parisc32.c:790: `stat_addr' undeclared (first use in this function)
sys_parisc32.c:790: `options' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:805: parse error before "__kernel_dev_t32"
sys_parisc32.c:805: warning: no semicolon at end of struct or union
sys_parisc32.c:806: warning: type defaults to `int' in declaration of
`st_ino'
sys_parisc32.c:806: warning: data definition has no type or storage class
sys_parisc32.c:807: parse error before "st_mode"
sys_parisc32.c:807: warning: type defaults to `int' in declaration of
`st_mode'
sys_parisc32.c:807: warning: data definition has no type or storage class
sys_parisc32.c:808: parse error before "st_nlink"
sys_parisc32.c:808: warning: type defaults to `int' in declaration of
`st_nlink'
sys_parisc32.c:808: warning: data definition has no type or storage class
sys_parisc32.c:811: parse error before "st_rdev"
sys_parisc32.c:811: warning: type defaults to `int' in declaration of
`st_rdev'
sys_parisc32.c:811: warning: data definition has no type or storage class
sys_parisc32.c:812: parse error before "st_size"
sys_parisc32.c:812: warning: type defaults to `int' in declaration of
`st_size'
sys_parisc32.c:812: warning: data definition has no type or storage class
sys_parisc32.c:813: parse error before "st_atime"
sys_parisc32.c:813: warning: type defaults to `int' in declaration of
`st_atime'
sys_parisc32.c:813: warning: data definition has no type or storage class
sys_parisc32.c:815: parse error before "st_mtime"
sys_parisc32.c:815: warning: type defaults to `int' in declaration of
`st_mtime'
sys_parisc32.c:815: warning: data definition has no type or storage class
sys_parisc32.c:817: parse error before "st_ctime"
sys_parisc32.c:817: warning: type defaults to `int' in declaration of
`st_ctime'
sys_parisc32.c:817: warning: data definition has no type or storage class
sys_parisc32.c:822: parse error before "__unused2"
sys_parisc32.c:822: warning: type defaults to `int' in declaration of
`__unused2'
sys_parisc32.c:822: warning: data definition has no type or storage class
sys_parisc32.c:823: parse error before "__unused3"
sys_parisc32.c:823: warning: type defaults to `int' in declaration of
`__unused3'
sys_parisc32.c:823: warning: data definition has no type or storage class
sys_parisc32.c:827: parse error before "st_realdev"
sys_parisc32.c:827: warning: type defaults to `int' in declaration of
`st_realdev'
sys_parisc32.c:827: warning: data definition has no type or storage class
sys_parisc32.c:830: parse error before "st_uid"
sys_parisc32.c:830: warning: type defaults to `int' in declaration of
`st_uid'
sys_parisc32.c:830: warning: data definition has no type or storage class
sys_parisc32.c:831: parse error before "st_gid"
sys_parisc32.c:831: warning: type defaults to `int' in declaration of
`st_gid'
sys_parisc32.c:831: warning: data definition has no type or storage class
sys_parisc32.c:833: parse error before '}' token
sys_parisc32.c: In function `cp_new_stat32':
sys_parisc32.c:850: storage size of `tmp' isn't known
sys_parisc32.c:850: warning: unused variable `tmp'
sys_parisc32.c:851: warning: `blocks' might be used uninitialized in this
function
sys_parisc32.c: At top level:
sys_parisc32.c:957: parse error before "__kernel_off_t32"
sys_parisc32.c:957: warning: no semicolon at end of struct or union
sys_parisc32.c:960: parse error before '}' token
sys_parisc32.c: In function `filldir32':
sys_parisc32.c:989: dereferencing pointer to incomplete type
sys_parisc32.c:989: dereferencing pointer to incomplete type
sys_parisc32.c:989: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1001: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c: In function `sys32_getdents':
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c: At top level:
sys_parisc32.c:1312: parse error before "__kernel_size_t32"
sys_parisc32.c:1313: warning: function declaration isn't a prototype
sys_parisc32.c: In function `qm_modules':
sys_parisc32.c:1321: `bufsize' undeclared (first use in this function)
sys_parisc32.c:1323: `buf' undeclared (first use in this function)
sys_parisc32.c:1330: `ret' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:1347: parse error before "__kernel_size_t32"
sys_parisc32.c:1348: warning: function declaration isn't a prototype
sys_parisc32.c: In function `qm_deps':
sys_parisc32.c:1351: `mod' undeclared (first use in this function)
sys_parisc32.c:1354: `ret' undeclared (first use in this function)
sys_parisc32.c:1361: `bufsize' undeclared (first use in this function)
sys_parisc32.c:1363: `buf' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:1384: parse error before "__kernel_size_t32"
sys_parisc32.c:1385: warning: function declaration isn't a prototype
sys_parisc32.c: In function `qm_refs':
sys_parisc32.c:1389: `mod' undeclared (first use in this function)
sys_parisc32.c:1392: `ret' undeclared (first use in this function)
sys_parisc32.c:1402: `bufsize' undeclared (first use in this function)
sys_parisc32.c:1404: `buf' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:1428: parse error before "__kernel_size_t32"
sys_parisc32.c:1429: warning: function declaration isn't a prototype
sys_parisc32.c: In function `qm_symbols':
sys_parisc32.c:1435: `mod' undeclared (first use in this function)
sys_parisc32.c:1436: `ret' undeclared (first use in this function)
sys_parisc32.c:1446: `bufsize' undeclared (first use in this function)
sys_parisc32.c:1453: `buf' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:1487: parse error before "__kernel_size_t32"
sys_parisc32.c:1488: warning: function declaration isn't a prototype
sys_parisc32.c: In function `qm_info':
sys_parisc32.c:1491: `mod' undeclared (first use in this function)
sys_parisc32.c:1494: `bufsize' undeclared (first use in this function)
sys_parisc32.c:1504: `buf' undeclared (first use in this function)
sys_parisc32.c:1509: `ret' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:1515: parse error before "__kernel_size_t32"
sys_parisc32.c:1516: warning: function declaration isn't a prototype
sys_parisc32.c: In function `sys32_query_module':
sys_parisc32.c:1521: `name_user' undeclared (first use in this function)
sys_parisc32.c:1545: `which' undeclared (first use in this function)
sys_parisc32.c:1551: `buf' undeclared (first use in this function)
sys_parisc32.c:1551: `bufsize' undeclared (first use in this function)
sys_parisc32.c:1551: `ret' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:1791: parse error before "__kernel_size_t32"
sys_parisc32.c:1791: warning: no semicolon at end of struct or union
sys_parisc32.c:1793: parse error before "msg_controllen"
sys_parisc32.c:1793: warning: type defaults to `int' in declaration of
`msg_controllen'
sys_parisc32.c:1793: warning: data definition has no type or storage class
sys_parisc32.c:1795: parse error before '}' token
sys_parisc32.c:1798: parse error before "__kernel_size_t32"
sys_parisc32.c:1798: warning: no semicolon at end of struct or union
sys_parisc32.c:1801: parse error before '}' token
sys_parisc32.c: In function `__cmsg32_nxthdr':
sys_parisc32.c:1825: arithmetic on pointer to an incomplete type
sys_parisc32.c: In function `msghdr_from_user32_to_kern':
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c: In function `cmsghdr_from_user32_to_kern':
sys_parisc32.c:1932: `__kernel_size_t32' undeclared (first use in this
function)
sys_parisc32.c:1932: parse error before "ucmlen"
sys_parisc32.c:1937: sizeof applied to an incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: `ucmlen' undeclared (first use in this function)
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1944: sizeof applied to an incomplete type
sys_parisc32.c:1950: dereferencing pointer to incomplete type
sys_parisc32.c:1970: sizeof applied to an incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1973: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1981: sizeof applied to an incomplete type
sys_parisc32.c:1982: dereferencing pointer to incomplete type
sys_parisc32.c: In function `put_cmsg32':
sys_parisc32.c:2005: storage size of `cmhdr' isn't known
sys_parisc32.c:2006: sizeof applied to an incomplete type
sys_parisc32.c:2008: dereferencing pointer to incomplete type
sys_parisc32.c:2023: sizeof applied to an incomplete type
sys_parisc32.c:2023: sizeof applied to an incomplete type
sys_parisc32.c:2025: sizeof applied to an incomplete type
sys_parisc32.c:2005: warning: unused variable `cmhdr'
sys_parisc32.c: In function `scm_detach_fds32':
sys_parisc32.c:2033: sizeof applied to an incomplete type
sys_parisc32.c:2042: sizeof applied to an incomplete type
sys_parisc32.c:2059: sizeof applied to an incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2067: sizeof applied to an incomplete type
sys_parisc32.c: In function `cmsg32_recvmsg_fixup':
sys_parisc32.c:2136: dereferencing pointer to incomplete type
sys_parisc32.c:2137: dereferencing pointer to incomplete type
sys_parisc32.c:2138: dereferencing pointer to incomplete type
sys_parisc32.c:2140: dereferencing pointer to incomplete type
sys_parisc32.c:2141: sizeof applied to an incomplete type
sys_parisc32.c:2144: sizeof applied to an incomplete type
sys_parisc32.c:2145: dereferencing pointer to incomplete type
sys_parisc32.c:2130: warning: `clen64' might be used uninitialized in this
function
sys_parisc32.c: In function `sys32_recvmsg':
sys_parisc32.c:2234: dereferencing pointer to incomplete type
sys_parisc32.c:2284: `__kernel_size_t32' undeclared (first use in this
function)
sys_parisc32.c:2284: parse error before "uclen"
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: `uclen' undeclared (first use in this function)
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2283: warning: unused variable `ucmsg_ptr'
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2224: warning: `uaddr_len' might be used uninitialized in
this function
sys_parisc32.c: In function `get_fd_set32':
sys_parisc32.c:2526: warning: left shift count >= width of type
sys_parisc32.c: In function `set_fd_set32':
sys_parisc32.c:2555: warning: right shift count >= width of type
sys_parisc32.c: At top level:
sys_parisc32.c:2793: parse error before "__kernel_ino_t32"
sys_parisc32.c:2793: warning: no semicolon at end of struct or union
sys_parisc32.c:2797: parse error before '}' token
sys_parisc32.c:2803: parse error before "__kernel_ino_t32"
sys_parisc32.c:2803: warning: no semicolon at end of struct or union
sys_parisc32.c:2805: parse error before '}' token
sys_parisc32.c:2809: parse error before "__kernel_caddr_t32"
sys_parisc32.c:2809: warning: no semicolon at end of struct or union
sys_parisc32.c:2812: parse error before "ug_udimap"
sys_parisc32.c:2812: warning: type defaults to `int' in declaration of
`ug_udimap'
sys_parisc32.c:2812: warning: data definition has no type or storage class
sys_parisc32.c:2815: parse error before "ug_gdimap"
sys_parisc32.c:2815: warning: type defaults to `int' in declaration of
`ug_gdimap'
sys_parisc32.c:2815: warning: data definition has no type or storage class
sys_parisc32.c:2824: field `u_export' has incomplete type
sys_parisc32.c:2825: field `u_umap' has incomplete type
sys_parisc32.c:2826: field `u_getfh' has incomplete type
sys_parisc32.c:2928: parse error before "__kernel_time_t32"
sys_parisc32.c:2928: warning: no semicolon at end of struct or union
sys_parisc32.c:2929: warning: type defaults to `int' in declaration of
`dqb_itime'
sys_parisc32.c:2929: warning: data definition has no type or storage class
sys_parisc32.c: In function `sys32_quotactl':
sys_parisc32.c:2948: sizeof applied to an incomplete type
sys_parisc32.c:2950: dereferencing pointer to incomplete type
sys_parisc32.c:2951: dereferencing pointer to incomplete type
sys_parisc32.c:2964: dereferencing pointer to incomplete type
sys_parisc32.c:2965: dereferencing pointer to incomplete type
sys_parisc32.c:2967: sizeof applied to an incomplete type
sys_parisc32.c:3019:1: warning: "CP" redefined
sys_parisc32.c:3012:1: warning: this is the location of the previous
definition
make[1]: *** [sys_parisc32.o] Error 1
make: *** [_dir_arch/parisc/kernel] Error 2


Can anyone tell me this is, or what causes this.

Thanks

Alex



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> 
> For me, it doesn't even BUILD!
> 
> (I build it on the box itself 712/80, gecko):
> 

Please include a list of the following:

1. Compiler version.
2. Binutils version.
3. Last time you ran "apt-get update; apt-get dist-upgrade;".
4. Running kernel version.
5. How you got the kernel source tree.
	- Did you 'cvs co' ontop of a 2.4.18 tree?
6. What steps you took to compile the kernel.
	- Did you try runnig 'make mrproper' first?
7. Full output of all the steps.

c.


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Subject: Re: [parisc-linux] Palo: cmdline and commanline has different limits?
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> > I do not know yet if pad1 can be removed so that cmdline could reach 204 
> > [240-8-7*(sizeof int = 4?)] char lenght, also I prefer to let you choise.
> > 
> > Joel
> 
> I don't see why not? Would 200 characters be enough for your application?
> 
> I do think that "> 255" should be changed in palo.c
> 
> To push it out further would require teaching palo about 
> both formats (and understanding why the comment mentions 
> that all the data must fit in 256 byes).
> 
> c.

Joel,

I just talked to Bame and we both agree that those bytes would
best be left for future expansion.

I've made the change in palo.c such that it checks for "> 127"
I'll be cheking that in today, and a new deb of palo should be out
next week. If you would like to help in the testing process then 
checkout palo from cvs and you can build the package yourself.

The documentation for palo was updated to reflect a limit
in the -c argument.

Do you have a particular use for more than 127 bytes of command line
information? Passing a _lot_ of data via the command line is not 
accepted as good practice :}

c.



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Am 05.08.2002 um 10:55:38 -0400 schrieb Carlos O'Donell folgendes:

> Please include a list of the following:
> 
> 1. Compiler version.

gcc            3.0.4-7

> 2. Binutils version.

binutils       2.12.90.0.15-1

> 3. Last time you ran "apt-get update; apt-get dist-upgrade;".

Today?

> 4. Running kernel version.

2.4.18-pa59

> 5. How you got the kernel source tree.
> 	- Did you 'cvs co' ontop of a 2.4.18 tree?

Did that. Then I thought this may not be smart and fetched the 2.4.19
pa0 tarball and did a "cvs co" on top of that. Nothing changed.

> 6. What steps you took to compile the kernel.
> 	- Did you try runnig 'make mrproper' first?

make-kpkg clean && make-kpkg --revision=20020805 kernel_image modules_image

> 7. Full output of all the steps.

That would be a little too much.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
(S)he's catching twenty winks under the floorboards, tread gingerly. 



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On Mon, Aug 05, 2002 at 04:17:45PM +0200, Alex Green wrote:
> Hi,
> 
> I'm trying to compile the latest kernel source from the parisc-linux ftp,
> 2.4.19-pa0 I belive and I get the following errors while doing the "make
> vmlinux":
> 

Please include a list of the following:

1. Compiler version.
2. Binutils version.
3. Modutils version.
4. Last time you ran "apt-get update; apt-get dist-upgrade;".
5. Running kernel version.
6. How you got the kernel source tree.
        - Did you 'cvs co' ontop of a 2.4.18 tree?
7. What steps you took to compile the kernel.
        - Did you try runnig 'make mrproper' first?

c.



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Ok,

It builds from source no problems and it works on parisc... well appears to
:).

Thanks,
Alex
----- Original Message -----
From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Monday, August 05, 2002 3:54 PM
Subject: Re: Betr.: Re: [parisc-linux] 2.4.19 tree merged in.


>there is only the 2.4.15 pkgs in the debian trees (stable, unstable and
>testing)
>
>where can the new modutils be retrieved from?
>
a single google-query would have shown they live in

/pub/linux/utils/kernel/moduitls/v2.4

in every kernel mirror you can find. I haven't tested newer versions on
pa-risc, BTW.

Good luck,
Jurriaan

_______________________________________________
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parisc-linux@lists.parisc-linux.org
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> >
> >For me, it doesn't even BUILD!
> >
> There is a noxious problem where the latest debian modutils are still at
> 2.4.15, and kernel-2.4.19 needs newer modutils. This can be solved
> by downloading a newer version of modutils (2.4.19 is the latest, IIRC) and
> installing those. The symptoms of too old modutils are lot of unresolved
> symbols - like  you see.
> 
> Good luck,
> Jurriaan
>

I had forgotten about that change.
Yes, you will need to update modutils...
ftp://ftp.kernel.org/pub/linux/utils/kernel/modutils/v2.4/modutils-2.4.19.tar.gz

I always have the latest source for this lying around and I forget 
about it :}

c.



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[....]

> On Mon, Aug 05, 2002 at 04:17:45PM +0200, Alex Green wrote:
> > Hi,
> >
> > I'm trying to compile the latest kernel source from the parisc-linux
ftp,
> > 2.4.19-pa0 I belive and I get the following errors while doing the "make
> > vmlinux":
> >
>
> Please include a list of the following:
>
> 1. Compiler version.

gcc-3.1.1 and gcc-3.0.4

> 2. Binutils version.

binutils-2.12.90.0.15-1

> 3. Modutils version.

modutils-2.4.19    * Built from source *

> 4. Last time you ran "apt-get update; apt-get dist-upgrade;".

Today

> 5. Running kernel version.

2.4.18 from woody

> 6. How you got the kernel source tree.
>         - Did you 'cvs co' ontop of a 2.4.18 tree?

no, i took the .tar.gz from the CVS on the ftp site, I have no access to cvs
* firewall *


> 7. What steps you took to compile the kernel.
>         - Did you try runnig 'make mrproper' first?

make clean dep vmlinux.....     Should I try running make mrproper first??




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On Mon, Aug 05, 2002 at 05:20:42PM +0200, Alex Green wrote:
> Ok,
> 
> It builds from source no problems and it works on parisc... well appears to
> :).

Maybe we should file a bugreport :)

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
I almost died, but I made it, so I'm not so serious about formal-wear
anymore. -- Gene Boggs



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no a bad idea

----- Original Message -----
From: "Ralf Hildebrandt" <Ralf.Hildebrandt@charite.de>
To: "Alex Green" <alexdgreen@hotmail.com>
Cc: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>;
<parisc-linux@lists.parisc-linux.org>
Sent: Monday, August 05, 2002 5:34 PM
Subject: Re: Betr.: Re: [parisc-linux] 2.4.19 tree merged in.


> On Mon, Aug 05, 2002 at 05:20:42PM +0200, Alex Green wrote:
> > Ok,
> >
> > It builds from source no problems and it works on parisc... well appears
to
> > :).
>
> Maybe we should file a bugreport :)
>
> --
> Ralf Hildebrandt (Im Auftrag des Referat V A)
Ralf.Hildebrandt@charite.de
> Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450
570-155
> Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450
570-916
> I almost died, but I made it, so I'm not so serious about formal-wear
> anymore. -- Gene Boggs
>



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On Mon, Aug 05, 2002 at 09:43:50AM +0200, Alex Green wrote:
> Hi All,
> 
> Well I've just got my C3600 booting, however I have a problem with
> my fxe5.  Even with X configured for the fb device, the start log for
> X reports "unknown device".

unfortunately, hp have not released programming docs on the fxe, fx5 or fx10
yet.  so we don't know how to drive it.

-- 
Revolutions do not require corporate support.


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On Mon, Aug 05, 2002 at 05:34:43PM +0200, Ralf Hildebrandt wrote:
> Maybe we should file a bugreport :)

filed one already ... turns out it was already uploaded, but wichert
hadn't closed the two bugs i found which were asking for a later version
to be uploaded.  so look at:

http://bugs.debian.org/cgi-bin/pkgreport.cgi?which=pkg&data=modutils&archive=no

and you'll see a few bugs closed ;-)  [down at the bottom].

-- 
Revolutions do not require corporate support.


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Does anyone have X working on a 715?  I have a 715/100 that X starts on,
but it does not refresh.  The windows don't redraw fast enough to be usable.
I also have a 715/80 that X will not start on.  I can send logs if it will
help someone help me.

Thanks in advance.
-- 
Jonathan Crockett
Network Engineer
Midcontinent Communications


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Subject: [parisc-linux] About the 2.4.19-pa0 kernel ...
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Hi all,

Yesterday I've built the 2.4.19-pa0 kernel and it seems to work fine at
first sight (I did a make oldconfig with the config from the 2.4.18-pa56).
However, the powerbutton ceased working. It was working fine with the
2.4.18-pa56 kernel. Has anything changed near the code that handles this?
Can someone else with a 712 confirm this behaviour?
If you need my config, I'll send it tonight as I don't have access to this
box during the day :(
Thanks a lot.


regards,

Kenneth


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I just updated my local copies of palo and the kernel sources.

Compilation on my PIII pc of the kernel went OK, but when it goes to 
prepare the lifimage using 'make palo' it does not work as before.

I looked at the change log of Makefile and there is no mention on how to 
create a lifimage. How is it done now?

-- 
      Rafael



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> I would just like to know if you already have the opportunity to have a 
> look for a fix of this stuff (I know you are very busy this time and do 
> not want to stress, just want to got news)

just came back from a trip....

i started fixing this a few weeks back but got sidetracked by the 2.5
merge.... it's definitely on my todo list :-)

fwiw i haven't seen any conclusive proof that this "fix" will actually
fix any problems we've seen....

randolph


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Hey Rafael,

Just have a look to annonce of Paul:
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-July/017144.html

It should help you.

J.

>-- Original Message --
>From: "Rafael E. Herrera" <raffo@neuronet.pitt.edu>
>To: Parisc-Linux <parisc-linux@lists.parisc-linux.org>
>Subject: [parisc-linux] Problem cross-compiling latest CVS kernel
>Date: Wed, 07 Aug 2002 00:54:34 -0400
>
>
>I just updated my local copies of palo and the kernel sources.
>
>Compilation on my PIII pc of the kernel went OK, but when it goes to 
>prepare the lifimage using 'make palo' it does not work as before.
>
>I looked at the change log of Makefile and there is no mention on how to
>
>create a lifimage. How is it done now?
>
>-- 
>      Rafael
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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To: "Carlos O'Donell" <carlos@baldric.uwo.ca>,
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	parisc-linux@parisc-linux.org
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>-- Original Message --
>From: Carlos O'Donell <carlos@baldric.uwo.ca>
>To: Joel Soete <joel.soete@freebel.net>, bame@fc.hp.com,
>	parisc-linux@parisc-linux.org
>Subject: Re: [parisc-linux] Palo: cmdline and commanline has different limits?
>Date: Mon, 5 Aug 2002 10:59:19 -0400
>
>
>> > I do not know yet if pad1 can be removed so that cmdline could reach
>204 
>> > [240-8-7*(sizeof int = 4?)] char lenght, also I prefer to let you choise.
>> > 
>> > Joel
>> 
>> I don't see why not? Would 200 characters be enough for your application?
>> 
>> I do think that "> 255" should be changed in palo.c
>> 
>> To push it out further would require teaching palo about 
>> both formats (and understanding why the comment mentions 
>> that all the data must fit in 256 byes).
>> 
>> c.
>
>Joel,
>
>I just talked to Bame and we both agree that those bytes would
>best be left for future expansion.
>
>I've made the change in palo.c such that it checks for "> 127"
>I'll be cheking that in today, and a new deb of palo should be out
>next week. If you would like to help in the testing process then 
>checkout palo from cvs and you can build the package yourself.
>
>The documentation for palo was updated to reflect a limit
>in the -c argument.
>
>Do you have a particular use for more than 127 bytes of command line
>information? Passing a _lot_ of data via the command line is not 
>accepted as good practice :}

Carlos,

It is Ok for me.

I do not actualy need more.
I am just studying palo code to see what have to be done to support raid1
md for the /boot device :) and just notice that potential problem so I report
it :)

Thanks a lot for all,
    J.



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Subject: Re: [parisc-linux] "unaligned access to ... at ip=..." problem with evms and jfs
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>-- Original Message --
>Date: Tue, 6 Aug 2002 23:11:57 -0700
>From: Randolph Chung <tausq@debian.org>
>To: Joel Soete <joel.soete@freebel.net>
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] "unaligned access to ... at ip=..." problem
with
>evms and jfs
>Reply-To: Randolph Chung <tausq@debian.org>
>
>
>> I would just like to know if you already have the opportunity to have
a
>
>> look for a fix of this stuff (I know you are very busy this time and do
>
>> not want to stress, just want to got news)
>
>just came back from a trip....
>
>i started fixing this a few weeks back but got sidetracked by the 2.5
>merge.... it's definitely on my todo list :-)
>
Great :))

>fwiw i haven't seen any conclusive proof that this "fix" will actually
>fix any problems we've seen....
>

In fact i am ignoring exactly what is this fix. So I could not presume if
it will or not solve the annoying "unalign access..." messages I encounter
before I test it :)).

Many thanks for help,
    J.



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Hi,

I've just build 2.4.19-pa2 on my c3600 and then I ran palo * I've =
updated to 1.1 * afterwards, after booting I got an error reporting:

ENTRY_INIT failed, status =3D -7: Nonexistent device

>>Some Hex Entries<<

Failed to initialize

What is this... did I do something wrong?



AG

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charset=3Dwindows-1252">
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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3D"Courier New" size=3D2>Hi,</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>I've just build 2.4.19-pa2 on =
my c3600 and=20
then I ran palo * I've updated to 1.1 *&nbsp;afterwards, after booting I =
got an=20
error reporting:</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>ENTRY_INIT failed, status =3D =
-7: Nonexistent=20
device</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>&gt;&gt;Some Hex=20
Entries&lt;&lt;</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>Failed to =
initialize</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>What is this... did I do =
something=20
wrong?</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>AG</FONT></DIV></BODY></HTML>

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Hi,

I've just build 2.4.19-pa2 on my c3600 and then I ran palo * I've =
updated to 1.1 * afterwards, after booting I got an error reporting:

ENTRY_INIT failed, status =3D -7: Nonexistent device

>>Some Hex Entries<<

Failed to initialize

What is this... did I do something wrong?



AG

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<BODY bgColor=3D#ffffff>
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<DIV><FONT face=3D"Courier New" size=3D2>Hi,</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>I've just build 2.4.19-pa2 on =
my c3600 and=20
then I ran palo * I've updated to 1.1 *&nbsp;afterwards, after booting I =
got an=20
error reporting:</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>ENTRY_INIT failed, status =3D =
-7: Nonexistent=20
device</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>&gt;&gt;Some Hex=20
Entries&lt;&lt;</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>Failed to =
initialize</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>What is this... did I do =
something=20
wrong?</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" =
size=3D2>AG</FONT></DIV></FONT></DIV></BODY></HTML>

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> Hi,
> I've just build 2.4.19-pa2 on my c3600 and then I ran palo * I've updated to 1.1 * afterwards, after booting I got an error reporting:
> ENTRY_INIT failed, status = -7: Nonexistent device
> >>Some Hex Entries<<
> Failed to initialize
> What is this... did I do something wrong?
> AG

Yes. Possibly specifying the wrong device.

To quote HP IT Resources:
The device address supplied to ENTRY_INIT is valid, but, 
the target controller or device is not installed or is not responding
ENTRY_INIT -7 Causes:
- Booting from the wrong path or non-existent device.
- Trying to boot from a device that is not responding.

Stop the machine at bootup and try to search for bootable
devices... and see what it returns.

c.


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ok, well i got the PALO to start however it now crashes with the following
error:

Couldn't grok your kernel executable formatERROR: failed to load kernel.

What does this mean?

ag

----- Original Message -----
From: "Carlos O'Donell" <carlos@baldric.uwo.ca>
To: "Alex Green" <alexdgreen@hotmail.com>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Wednesday, August 07, 2002 2:38 PM
Subject: Re: [parisc-linux] palo issues


> > Hi,
> > I've just build 2.4.19-pa2 on my c3600 and then I ran palo * I've
updated to 1.1 * afterwards, after booting I got an error reporting:
> > ENTRY_INIT failed, status = -7: Nonexistent device
> > >>Some Hex Entries<<
> > Failed to initialize
> > What is this... did I do something wrong?
> > AG
>
> Yes. Possibly specifying the wrong device.
>
> To quote HP IT Resources:
> The device address supplied to ENTRY_INIT is valid, but,
> the target controller or device is not installed or is not responding
> ENTRY_INIT -7 Causes:
> - Booting from the wrong path or non-existent device.
> - Trying to boot from a device that is not responding.
>
> Stop the machine at bootup and try to search for bootable
> devices... and see what it returns.
>
> c.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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ok the file was build using make bzImage... surely this would produce a
proper image..... or not?

----- Original Message -----
From: "Paul Bame" <bame@fc.hp.com>
To: "Alex Green" <alexdgreen@hotmail.com>
Sent: Wednesday, August 07, 2002 5:14 PM
Subject: Re: [parisc-linux] palo issues


> > ok, well i got the PALO to start however it now crashes with the
following
> > error:
> >
> > Couldn't grok your kernel executable formatERROR: failed to load kernel.
> >
> > What does this mean?
>
> The normal reason for this error is that the file isn't an elf32
> or elf64 executable.  Common mistakes are using a lifimage instead
> of a 'vmlinux' (e.g., elf kernel).  Once someone used a tarball
> (of the pre-built kernels on ftp.parisc-linux.org/kernels/32) without
> unpacking it first.
>
> Run 'file' on what you're telling palo to load.
>
> -P
>



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I ran file against my new kernel and the output is the same as the currently
booting kernel.


----- Original Message -----
From: "Paul Bame" <bame@fc.hp.com>
To: "Alex Green" <alexdgreen@hotmail.com>
Sent: Wednesday, August 07, 2002 5:14 PM
Subject: Re: [parisc-linux] palo issues


> > ok, well i got the PALO to start however it now crashes with the
following
> > error:
> >
> > Couldn't grok your kernel executable formatERROR: failed to load kernel.
> >
> > What does this mean?
>
> The normal reason for this error is that the file isn't an elf32
> or elf64 executable.  Common mistakes are using a lifimage instead
> of a 'vmlinux' (e.g., elf kernel).  Once someone used a tarball
> (of the pre-built kernels on ftp.parisc-linux.org/kernels/32) without
> unpacking it first.
>
> Run 'file' on what you're telling palo to load.
>
> -P
>



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On Wed, Aug 07, 2002 at 05:28:20PM +0200, Alex Green wrote:
> I ran file against my new kernel and the output is the same as the currently
> booting kernel.
> 
> 

I was decidedly wrong. While 'make bzImage' will produce the
right vmlinux for you to use... you cannot use the actual bzImage
because we don't support compressed kernel images in palo.

Using the vmlinux in /usr/src/linux (or where your tree is) will
get you to the right place :)

c.


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I've rebuilt using make vmlinux, to remove all options for the wrong image
being built, however, even after reloading palo, it still has the same
error.

I'm now going back to look at the kernel build to check if I can anything
there.

----- Original Message -----
From: "Carlos O'Donell" <carlos@baldric.uwo.ca>
To: "Alex Green" <alexdgreen@hotmail.com>
Cc: "Paul Bame" <bame@fc.hp.com>; <parisc-linux@lists.parisc-linux.org>
Sent: Wednesday, August 07, 2002 5:36 PM
Subject: Re: [parisc-linux] palo issues


> On Wed, Aug 07, 2002 at 05:28:20PM +0200, Alex Green wrote:
> > I ran file against my new kernel and the output is the same as the
currently
> > booting kernel.
> >
> >
>
> I was decidedly wrong. While 'make bzImage' will produce the
> right vmlinux for you to use... you cannot use the actual bzImage
> because we don't support compressed kernel images in palo.
>
> Using the vmlinux in /usr/src/linux (or where your tree is) will
> get you to the right place :)
>
> c.
>



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> > > > ok the file was build using make bzImage... surely this would
produce a
> > > > proper image..... or not?
> > >
> > > Nope.  Just use 'make'.  the file 'vmlinux' is what you want
>
> Something doesn't compute yet for me, sorry for asking stupid
> questions:
>
>     So you made 'vmlinux' and then copied it to /boot or something right?

Yep I copied to /boot/vmlinux-64

>
>     'file vmlinux' says something about ELF 32 right?

nope I built it with 64bit gcc, as I wanted a 64bit kernel, so the file is
ELF64 :).

>
>     The partition where palo expects to find 'vmlinux' _ends_ within the
>     first 2G of the disk?

Yep, the f0 partition is the first 75mb of the disk:


Disk /dev/sda: 64 heads, 32 sectors, 17366 cylinders
Units = cylinders of 2048 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sda1   *         1        72     73712   f0  Linux/PA-RISC boot
/dev/sda2            73       560    499712   82  Linux swap
/dev/sda3           561      1048    499712   82  Linux swap
/dev/sda4          1049     17366  16709632   83  Linux


mount
/dev/sda4 on / type ext3 (rw,errors=remount-ro)
proc on /proc type proc (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/proc/bus/usb on /proc/bus/usb type usbdevfs (rw)


cat /etc/palo.conf
--commandline=4/boot/vmlinux-64 root=/dev/sda4 HOME=/
--recoverykernel=/boot/vmlinux
--init-partitioned=/dev/sda


ls -l
total 11912
-rw-r--r--    1 root     root       881069 Aug  7 10:23 System.map-2.4.18-64
-rw-r--r--    1 root     root       900165 Aug  7 18:04 System.map-64
-rw-r--r--    1 root     root         4711 Aug  7 10:23 config-2.4.18-64
lrwxrwxrwx    1 root     root           17 Aug  7 10:26 vmlinux ->
vmlinux-2.4.18-64
-rw-r--r--    1 root     root      5139673 Aug  7 10:23 vmlinux-2.4.18-64
-rwxr-xr-x    1 root     root      5227388 Aug  7 18:04 vmlinux-64


palo
palo version 1.1 bame@c3k Tue Aug  6 09:40:01 MDT 2002
ELF64 executable
Partition Start(MB) End(MB) Id Type
1               1      72   f0 Palo
2              73     560   82 swap
3             561    1048   82 swap
4            1049   17366   83 ext2
ipl: addr 16384 size 30720 entry 0x0
 ko 0x0 ksz 0 k64o 0x0 k64sz 0 rdo 0 rdsz 0
<4/boot/vmlinux-64 root=/dev/sda4 HOME=/>
ipl: addr 16384 size 30720 entry 0x0
 ko 0x0 ksz 0 k64o 0x44000 k64sz 5139673 rdo 0 rdsz 0
<4/boot/vmlinux-64 root=/dev/sda4 HOME=/>


file vmlinux-64
vmlinux-64: ELF 64-bit MSB executable, PA-RISC 2.0 (LP64) version 1
(GNU/Linux), dynamically linked (uses shared libs), not stripped
mohawk:/boot# file vmlinux-2.4.18-64
vmlinux-2.4.18-64: ELF 64-bit MSB executable, PA-RISC 2.0 (LP64) version 1
(GNU/Linux), dynamically linked (uses shared libs), not stripped
mohawk:/boot#


Does this shed any light ??

Thanks
AG






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Subject: Re: [parisc-linux] palo issues
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	**** BOTH THE F0 PARTITION AND THE EXT2 PARTITION	****
	**** WHERE PALO IS TOLD TO FIND THE KERNEL _MUST_ BE	****
	**** CONTAINED WITHIN THE FIRST 2G OF THE DISK		****
	http://parisc-linux.org/software/install.html

> >     The partition where palo expects to find 'vmlinux' _ends_ within the
> >     first 2G of the disk?

In your case (thanks for all the info!) palo is being asked to load the
kernel from partition 4.

> --commandline=4/boot/vmlinux-64 root=/dev/sda4 HOME=/

Partition 4 is _NOT_ contained within the first 2G.

> /dev/sda4          1049     17366  16709632   83  Linux

Sorry my question wasn't clearer.  Perhaps you can turn sda2 or 3 into
a /boot partition, or something more drastic...

> Yep, the f0 partition is the first 75mb of the disk:
> 
> 
> Disk /dev/sda: 64 heads, 32 sectors, 17366 cylinders
> Units = cylinders of 2048 * 512 bytes
> 
>    Device Boot    Start       End    Blocks   Id  System
> /dev/sda1   *         1        72     73712   f0  Linux/PA-RISC boot
> /dev/sda2            73       560    499712   82  Linux swap
> /dev/sda3           561      1048    499712   82  Linux swap
> /dev/sda4          1049     17366  16709632   83  Linux
> 
> 
> mount
> /dev/sda4 on / type ext3 (rw,errors=remount-ro)
> proc on /proc type proc (rw)
> devpts on /dev/pts type devpts (rw,gid=5,mode=620)
> /proc/bus/usb on /proc/bus/usb type usbdevfs (rw)
> 
> 
> cat /etc/palo.conf
> --commandline=4/boot/vmlinux-64 root=/dev/sda4 HOME=/
> --recoverykernel=/boot/vmlinux
> --init-partitioned=/dev/sda
> 
> 
> ls -l
> total 11912
> -rw-r--r--    1 root     root       881069 Aug  7 10:23 System.map-2.4.18-64
> -rw-r--r--    1 root     root       900165 Aug  7 18:04 System.map-64
> -rw-r--r--    1 root     root         4711 Aug  7 10:23 config-2.4.18-64
> lrwxrwxrwx    1 root     root           17 Aug  7 10:26 vmlinux ->
> vmlinux-2.4.18-64
> -rw-r--r--    1 root     root      5139673 Aug  7 10:23 vmlinux-2.4.18-64
> -rwxr-xr-x    1 root     root      5227388 Aug  7 18:04 vmlinux-64
> 
> 
> palo
> palo version 1.1 bame@c3k Tue Aug  6 09:40:01 MDT 2002
> ELF64 executable
> Partition Start(MB) End(MB) Id Type
> 1               1      72   f0 Palo
> 2              73     560   82 swap
> 3             561    1048   82 swap
> 4            1049   17366   83 ext2
> ipl: addr 16384 size 30720 entry 0x0
>  ko 0x0 ksz 0 k64o 0x0 k64sz 0 rdo 0 rdsz 0
> <4/boot/vmlinux-64 root=/dev/sda4 HOME=/>
> ipl: addr 16384 size 30720 entry 0x0
>  ko 0x0 ksz 0 k64o 0x44000 k64sz 5139673 rdo 0 rdsz 0
> <4/boot/vmlinux-64 root=/dev/sda4 HOME=/>
> 
> 
> file vmlinux-64
> vmlinux-64: ELF 64-bit MSB executable, PA-RISC 2.0 (LP64) version 1
> (GNU/Linux), dynamically linked (uses shared libs), not stripped
> mohawk:/boot# file vmlinux-2.4.18-64
> vmlinux-2.4.18-64: ELF 64-bit MSB executable, PA-RISC 2.0 (LP64) version 1
> (GNU/Linux), dynamically linked (uses shared libs), not stripped
> mohawk:/boot#
> 
> 
> Does this shed any light ??
> 
> Thanks
> AG
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


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> > --commandline=4/boot/vmlinux-64 root=/dev/sda4 HOME=/
> 
> Partition 4 is _NOT_ contained within the first 2G.
> 
> > /dev/sda4          1049     17366  16709632   83  Linux
> 
> Sorry my question wasn't clearer.  Perhaps you can turn sda2 or 3 into
> a /boot partition, or something more drastic...
> 
> > Yep, the f0 partition is the first 75mb of the disk:

Or you could set --commandline=0/vmlinux and have palo copy the
kernel into f0. Though you'll need to do this for every new kernel
you want to use. Very much like a normal lilo setup on x86. Though
if you muck it up... you can't recover.

c.


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From: "Mazia-Assia KAIDI" <kaidi@letters.grenoble.hp.com>
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Bonjour,
je suis stagiaire au centre europeen d'integration de HP Villefontaine. mon
travail consiste en la mise en place d'un outil d'integration portable sous
linux Redhat, mon souci est de booter sur un serveur HP-UX, mon portable se
comporte comme un serveur bootp, dhcp et tftp. cependant j'ai un souci au
niveau du protocole tftp, le transfert de fichiers ne se fait pas: le
transfert se fait paquet par paquet et au bout d'un moment il y'a un message
d'erreur indefini: opcode 0.
dans le cas ou vous auriez plus d'informations, je vous prie de bien vouloir
me les communiquer.
Merci d'avance pour votre aide.


Mazia-Assia KAIDI
Stagiaire Portable integration tool
HP EIC - EMEA
Telecom Engineering Departement
Tel : + 33 4 74 99 42 94



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Can you write your message in English?


Mazia-Assia KAIDI wrote:

>Bonjour,
>je suis stagiaire au centre europeen d'integration de HP Villefontaine. mon
>travail consiste en la mise en place d'un outil d'integration portable sous
>linux Redhat, mon souci est de booter sur un serveur HP-UX, mon portable se
>comporte comme un serveur bootp, dhcp et tftp. cependant j'ai un souci au
>niveau du protocole tftp, le transfert de fichiers ne se fait pas: le
>transfert se fait paquet par paquet et au bout d'un moment il y'a un message
>d'erreur indefini: opcode 0.
>dans le cas ou vous auriez plus d'informations, je vous prie de bien vouloir
>me les communiquer.
>Merci d'avance pour votre aide.
>
>
>Mazia-Assia KAIDI
>Stagiaire Portable integration tool
>HP EIC - EMEA
>Telecom Engineering Departement
>Tel : + 33 4 74 99 42 94
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
>  
>





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"Mazia-Assia KAIDI" writes...

> Bonjour,
> je suis stagiaire au centre europeen d'integration de HP Villefontaine. mon
> travail consiste en la mise en place d'un outil d'integration portable sous
> linux Redhat, mon souci est de booter sur un serveur HP-UX, mon portable se

What type of hppa system?

> comporte comme un serveur bootp, dhcp et tftp. cependant j'ai un souci au
> niveau du protocole tftp, le transfert de fichiers ne se fait pas: le
> transfert se fait paquet par paquet et au bout d'un moment il y'a un message
> d'erreur indefini: opcode 0.

I haven't seen that before and searching the mailing list doesn't find 
anything either. Did it print any additional information that might be 
useful? If you're using serial console, just cut&paste the output and send 
it.

You might try checking the tftp log on the laptop to see if it's getting 
transferred ok.

Good luck,

-- 
Matt Taggart
taggart@fc.hp.com




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From: jsoe0708@tiscali.be
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Linux-2.4.19 released
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Hi all,

Congratulation to all for great job.

I test successfully 2.4.19-pa2 on my b2000 (with sym2) and b180 (with sym1).

I also test (I well see some differences) 2.4.20-pre1 with success on my
b2k (also sym2).

[All 32-bits kernels]

Just still have some problem with pre1-ac1 because of mingo sched (may be
solved in 2.5 ?)

Thanks,
 joel


>-- Original Message --
>Subject: Re: [parisc-linux] Linux-2.4.19 released
>From: Alan Cox <alan@lxorguk.ukuu.org.uk>
>To: Grant Grundler <grundler@dsl2.external.hp.com>
>Cc: Matthew Wilcox <willy@debian.org>,
>	HPPA List <parisc-linux@parisc-linux.org>
>Date: 04 Aug 2002 02:36:04 +0100
>
>
>On Sun, 2002-08-04 at 00:48, Grant Grundler wrote:
>> I've not been doing much for 2.5 and I'd like to see the folks who are
>> beating on 2.5.x not get distract by this.
>> If someone (paul?) drops 2.4.19 in our CVS and tells me which files
>> have conflicts, I'd be happy to take a whack at it.
>
>The merge work I've done to feed on to Marcelo has had very close to
>zero conflicts so it shouldnt be too bad.
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: Re: [parisc-linux] About the 2.4.19-pa0 kernel ...
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On Tue, Aug 06, 2002 at 09:03:47AM +0200, kenneth westelinck wrote:

> Yesterday I've built the 2.4.19-pa0 kernel and it seems to work fine at
> first sight (I did a make oldconfig with the config from the 2.4.18-pa56).
> However, the powerbutton ceased working. It was working fine with the
> 2.4.18-pa56 kernel. Has anything changed near the code that handles this?
> Can someone else with a 712 confirm this behaviour?

The power button on a 712/80 works just fine with 2.4.19-pa2!

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
To sysadmin or not to sysadmin... that is the question, whether tis
nobler in the minde to suffer the slings and arrowes of outragious
fortune, or climb to the top of the building with a fucking high-power
rifle and scope. 



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On Thu, Aug 08, 2002 at 02:05:05PM +0200, jsoe0708@tiscali.be wrote:
> Just still have some problem with pre1-ac1 because of mingo sched (may be
> solved in 2.5 ?)

yes, 2.5.26 has the O(1) scheduler and (i think) Richard & Randolph got
that working.

-- 
Revolutions do not require corporate support.


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Subject: [parisc-linux] LinuxWorld China 2002ֻ뺯ѣ
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    LinuxWorld China 2002ֻ뺯ѣ


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From: "Sean Anaya" <sanaya@gr.hp.com>
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Subject: RE: [parisc-linux] Booting Debian on an HP C180 workstation
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Hi All,

So I finally had a chance to install Debian 3.0 on my C180XP. So far looks
great, install was
far easier than the 0.9.3 CD, and I'm not seeing any of the file system
corruptions. However,
I'm still fighting a couple of battles.

1) where do you find the keywords to packages to install with apt-get
install <some package>?
   ie apt-get install xfree86  doesn't seem to work. I'd like to get the ftp
and telnet daemons
   working so I can ftp and telnet into my box, as well as X window system.

2) I'm still having trouble getting to system to boot with the monitor. The
boot sequence stops
   at "If this is the last message you see..." even tho the monitor flash a
couple of times.
   I have attached a log of the boot sequence when booting with a serial
console if that shows
   something helpful.

Any help would be most appreciated.

Thanks,

Sean Anaya
sanaya@gr.hp.com

------=_NextPart_000_0001_01C23ED5.0C2F0740
Content-Type: text/plain;
	name="bootup.txt"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="bootup.txt"




Firmware Version  6.1

Duplex Console IO Dependent Code (IODC) revision 1

-------------------------------------------------------------------------=
-----
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
-------------------------------------------------------------------------=
-----

  Processor   Speed            State           Coprocessor State  I/D =
Cache=20
  ---------  --------   ---------------------  -----------------  =
-------------
      0      180 MHz    Active                 Functional         1 MB/1 =
MB=0A=

  Central Bus Speed (in MHz) :        120=0A=

  Available memory (bytes)    : 536870912
  Good memory required (bytes):   76103680=20
=0A=
  Primary boot path:    FWSCSI.6.0=0A=
  Alternate boot path:  SESCSI.6.0=0A=
  Console path:         GRAPHICS(4)=0A=
  Keyboard path:        PS2=0A=

CPU 0=0A=
WARNING:  Self tests have been disabled as a result of FASTBOOT
          being enabled.  To enable self tests, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.
WARNING:  Memory has been initialized, but not tested as a result of
          FASTBOOT being enabled.  To test memory, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.
=0A=

Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

10 seconds expired.
Proceeding...

Searching for device(s) with bootable media...
This may take several minutes.
=0A=
To discontinue search, press any key (termination may not be immediate).

Attempting to boot Primary Path...=0A=

BOOTABLE DEVICE FOUND:=0A=
   Path Number        Device Path              Device Type and Utilities
   -----------        -----------------        -------------------------
   P0                 FWSCSI.6.0               SEAGATE ST32171W        =0A=
                                               IPL=0A=

Booting...=20
Boot IO Dependent Code (IODC) revision 153


HARD Booted.
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002=0A=

Partition Start(MB) End(MB) Id Type=0A=
1               1      24   f0 Palo=0A=
5              25     267   82 swap=0A=
6             268    2046   83 ext2=0A=

PALO(F0) partition contains:=0A=
    0/vmlinux32 3687647 bytes @ 0x48000=0A=

Information: No console specified on kernel command line. This is normal.=0A=
PALO will choose the console currently used by firmware (serial).=0A=
Command line for kernel: 'root=3D/dev/sdb6 HOME=3D/ console=3DttyS0 =
TERM=3Dvt102 palo_ke
rnel=3D6/boot/vmlinux'=0A=
Selected kernel: /boot/vmlinux from partition 6=0A=
ELF32 executable=0A=
Entry 00100000 first 00100000 n 5=0A=
Segment 0 load 00100000 size 2024492 mediaptr 0x1000=0A=
Segment 1 load 002f0000 size 299320 mediaptr 0x1f0000=0A=
Segment 2 load 0033c000 size 401408 mediaptr 0x23a000=0A=
Segment 3 load 003a0000 size 32768 mediaptr 0x29c000=0A=
Segment 4 load 003c90f8 size 102032 mediaptr 0x2a40f8=0A=
Branching to kernel entry point 0x00100000.  If this is the last=0A=
message you see, you may need to switch your console.  This is=0A=
a common symptom -- search the FAQ and mailing list at parisc-linux.org=0A=

Linux version 2.4.17-32 (root@paer) (gcc version 3.0.4) #1 Sat Mar 16 =
17:09:00 M
ST 2002=0A=
FP[0] enabled: Rev 0 Model 14=0A=
The 32-bit Kernel has started...=0A=
Determining PDC firmware type: System Map.=0A=
model 000059c0 00000481 00000000 00000002 780cc481 100000f0 00000008 =
000000b2 00
0000b2=0A=
vers  00000205=0A=
CPUID vers 14 rev 9 (0x000001c9)=0A=
model 9000/780/C180=0A=
Total Memory: 512 Mb=0A=
pagetable_init=0A=
On node 0 totalpages: 131072=0A=
zone(0): 131072 pages.=0A=
zone(1): 0 pages.=0A=
zone(2): 0 pages.=0A=
LED display at f0190001 registered=0A=
Kernel command line: root=3D/dev/sdb6 HOME=3D/ console=3DttyS0 =
TERM=3Dvt102 palo_kernel=3D
6/boot/vmlinux=0A=
Console: colour dummy device 160x64=0A=
Calibrating delay loop... 358.80 BogoMIPS=0A=
Memory: 513020k available=0A=
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)=0A=
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)=0A=
Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)=0A=
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)=0A=
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)=0A=
Searching for devices...=0A=
Found devices:=0A=
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb=0A=
2. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions 0x680, 0x1, 0xa=0A=
3. Raven U/L2 Dino PS/2 Port (10) at 0xf2001000 [8/1], versions 0x6, =
0x0, 0x96=0A=
4. Raven U/L2 Dino RS-232 (10) at 0xf2003000 [8/3], versions 0x6, 0x0, =
0x8c=0A=
5. Raven U/L2 Core FW-SCSI (4) at 0xf200c000 [8/12], versions 0x3b, 0x0, =
0x89=0A=
6. Raven U/L2 Core BA (11) at 0xffd00000 [8/16], versions 0x3b, 0x0, =
0x81,  addi
tional addresses: 0xffd0c000 0xffc00000 =0A=
7. Raven U/L2 Core Centronics (10) at 0xffd02000 [8/16/0], versions =
0x3b, 0x0, 0
x74,  additional addresses: 0xffd01000 0xffd03000 =0A=
8. Raven U/L2 Core Audio (10) at 0xffd04000 [8/16/1], versions 0x3b, =
0x4, 0x7b=0A=
9. Raven U/L2 Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x3b, =
0x0, 0x8c=0A=
10. Raven U/L2 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x3b, =
0x0, 0x82=0A=
11. Raven U/L2 Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions =
0x3b, 0x0,
 0x8a=0A=
12. Raven U/L2 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions =
0x3b, 0x0, 0
x84=0A=
13. Raven U/L2 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions =
0x3b, 0x0, 0
x84=0A=
14. Raven Backplane Wax BA (11) at 0xffe00000 [8/20], versions 0x17, =
0x0, 0x8e=0A=
15. Raven Backplane Wax HIL (10) at 0xffe01000 [8/20/1], versions 0x17, =
0x0, 0x7
3=0A=
16. Raven Backplane RS-232 (10) at 0xffe02000 [8/20/2], versions 0x17, =
0x0, 0x8c=0A=
17. Raven Backplane Wax EISA BA (11) at 0xfc000000 [8/20/5], versions =
0x17, 0x0,
 0x90,  additional addresses: 0xffc88000 0xfc00000b =0A=
18. Gecko GSC Core Graphics (10) at 0xfa000000 [8/24], versions 0x16, =
0x0, 0x85,
  additional addresses: 0xf0026000 =0A=
19. U2-IOA BC GSC+ Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1, =
0xc=0A=
20. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, =
0xb=0A=
21. Coral SGC Graphics (10) at 0xf4000000 [10/12], versions 0x4, 0x0, =
0x77=0A=
22. U2-IOA BC GSC+ Port (7) at 0xf103f000 [10/63], versions 0x501, 0x1, =
0xc=0A=
23. Raven U 180 (9000/780/C180) (0) at 0xfffa0000 [32], versions 0x59c, =
0x0, 0x4=0A=
24. Memory (1) at 0xfffb1000 [49], versions 0x72, 0x0, 0x9=0A=
CPU(s): 1 x PA8000 (PCX-U) at 180.000000 MHz=0A=
Found U2 at 0xfff88000=0A=
Found U2 at 0xfff8a000=0A=
Lasi version 0 at 0xffd00000 found.=0A=
Wax at 0xffe00000 found.=0A=
Wax: HIL Keyboard-NMI registered.=0A=
Wax EISA Adapter found at 0xfc000000=0A=
EISA EEPROM at 0xffc88000=0A=
Enumerating EISA bus=0A=
EISA slot 1 a configured board was not detected ( expected ___FFFF)=0A=
Dino version 2.1 found at 0xf2000000=0A=
The GSCtoPCI (Dino hrev 1) bus converter found may exhibit=0A=
data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.=0A=
Systems shipped after Aug 20, 1997 will not exhibit this problem.=0A=
Models affected: C180, C160, C160L, B160L, and B132L workstations.=0A=

Dino: No PCI devices enabled.=0A=
POSIX conformance testing by UNIFIX=0A=
Linux NET4.0 for Linux 2.4=0A=
Based upon Swansea University Computer Society NET3.039=0A=
Initializing RT netlink socket=0A=
Enabled soft power switch (polling mode, io=3D0xf0140000).=0A=
Starting kswapd=0A=
Journalled Block Device driver loaded=0A=
parport_init_chip: initialize bidirectional-mode.=0A=
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]=0A=
STI word mode ROM at f0026000, hpa=3Dfa000000=0A=
STI word mode ROM, id 2d08c0a7-9a02587, conforms to spec rev. 8.07=0A=
STI device: INTERNAL_EG_1280=0A=
STI byte mode ROM at f4000000, hpa=3Df4000000=0A=
STI byte mode ROM, id 2f8d570e-9a02587, conforms to spec rev. 8.05=0A=
STI device: HPA4246A=0A=
Console: switching to colour frame buffer device 160x64=0A=
fb0: stifb 1280x1024-8 frame buffer device, id: 2d08c0a7, mmio: =
0xfa100000=0A=
pty: 256 Unix98 ptys configured=0A=
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ =
SERIAL_PCI en
abled=0A=
ttyS00 at iomem 0xffd05800 (irq =3D 90) is a 16550A=0A=
ttyS01 at iomem 0xf2003800 (irq =3D 121) is a 16550A=0A=
ttyS02 at iomem 0xffe02800 (irq =3D 121) is a 16550A=0A=
PS/2 keyboard port at 0xffd08000 (irq 69) found, no device attached.=0A=
PS/2 psaux port at 0xffd08100 (irq 69) found, no device attached.=0A=
Found HIL at 0xffe01000, IRQ 126=0A=
HIL: no keyboard present.=0A=
lp0: using parport0 (interrupt-driven).=0A=
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)=0A=
block: 128 slots per queue, batch=3D32=0A=
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize=0A=
Uniform Multi-Platform E-IDE driver Revision: 6.31=0A=
ide: Assuming 50MHz system bus speed for PIO modes; override with =
idebus=3Dxx=0A=
loop: loaded (max 8 devices)=0A=
Found i82596 at 0xffd07000, IRQ 87=0A=
eth0: 82596 at 0xffd07000, 00 60 B0 18 03 7D IRQ 87.=0A=
82596.c $Revision: 1.28 $=0A=
SCSI subsystem driver Revision: 1.00=0A=
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 35=0A=
ncr53c8xx: 53c720 detected=0A=
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential=0A=
scsi0 : ncr53c8xx-3.4.3b-20010512=0A=
  Vendor: SEAGATE   Model: ST34371W          Rev: HP03=0A=
  Type:   Direct-Access                      ANSI SCSI revision: 02=0A=
  Vendor: SEAGATE   Model: ST32171W          Rev: HP03=0A=
  Type:   Direct-Access                      ANSI SCSI revision: 02=0A=
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com=0A=
scsi1: 53c710 rev 2 =0A=
scsi1 : LASI SCSI 53c700=0A=
scsi1: (2:0) Synchronous at offset 8, period 236ns=0A=
  Vendor: TOSHIBA   Model: CD-ROM XM-5401TA  Rev: 1036=0A=
  Type:   CD-ROM                             ANSI SCSI revision: 02=0A=
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0=0A=
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0=0A=
ncr53c720-0-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)=0A=
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)=0A=
Partition check:=0A=
 sda: sda1 sda2 < sda5 >=0A=
ncr53c720-0-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)=0A=
SCSI device sdb: 4194685 512-byte hdwr sectors (2148 MB)=0A=
 sdb: sdb1 sdb2 < sdb5 sdb6 >=0A=
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0=0A=
sr0: scsi-1 drive=0A=
Uniform CD-ROM driver Revision: 3.12=0A=
Lasi Harmony Audio driver V0.9a, h/w id 20, rev. 48 at 0xffd04000, IRQ 82=0A=
sticonsole_init: searching for STI ROMs=0A=
md: linear personality registered as nr 1=0A=
md: raid0 personality registered as nr 2=0A=
md: raid1 personality registered as nr 3=0A=
md: raid5 personality registered as nr 4=0A=
raid5: measuring checksumming speed=0A=
   8regs     :   394.800 MB/sec=0A=
   8regs_prefetch:   394.400 MB/sec=0A=
   32regs    :   306.800 MB/sec=0A=
   32regs_prefetch:   306.400 MB/sec=0A=
raid5: using function: 8regs (394.800 MB/sec)=0A=
md: md driver 0.90.0 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27=0A=
md: Autodetecting RAID arrays.=0A=
md: autorun ...=0A=
md: ... autorun DONE.=0A=
NET4: Linux TCP/IP 1.0 for NET4.0=0A=
IP Protocols: ICMP, UDP, TCP, IGMP=0A=
IP: routing cache hash table of 4096 buckets, 32Kbytes=0A=
TCP: Hash tables configured (established 32768 bind 65536)=0A=
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.=0A=
VFS: Mounted root (ext2 filesystem) readonly.=0A=
NOT FREEING INITMEM (383k)=0A=
INIT: version 2.84 booting
Activating swap.
Adding Swap: 251432k swap-space (priority -1)=0A=
Adding Swap: 249200k swap-space (priority -2)=0A=
Checking root file system...
fsck 1.27 (8-Mar-2002)
/dev/sdb6: clean, 17334/228032 files, 56696/455374 blocks
System time was Thu Aug  8 17:56:28 UTC 2002.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Thu Aug  8 17:56:23 UTC 2002.
Calculating module dependencies... done.
Loading modules:=20
Checking all file systems...
fsck 1.27 (8-Mar-2002)
/dev/sda1: clean, 14/493024 files, 15493/985397 blocks
Setting kernel variables.
Loading the saved-state of the serial devices...=20
Cannot set serial info: Address already in use
/dev/ttyS0 at 0x0000 (irq =3D 90) is a 16550A
Cannot set serial info: Address already in use
/dev/ttyS1 at 0x0000 (irq =3D 121) is a 16550A
Cannot set serial info: Address already in use
/dev/ttyS2 at 0x0000 (irq =3D 121) is a 16550A
Mounting local filesystems...
/dev/sda1 on /home type ext2 (rw)
Running 0dns-down to make sure resolv.conf is ok...done.
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: eth0: link ok.=0A=
done.
Starting portmap daemon: portmap.

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Thu Aug  8 11:56:34 MDT 2002

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting NFS common utilities: statd.
Starting internet superserver: inetd.
Starting printer spooler: lpd.
OpenBSD Secure Shell server not in use (/etc/ssh/sshd_not_to_be_run)
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.
Starting web server: apache.

Debian GNU/Linux 3.0 icebox ttyS0

icebox login: 
------=_NextPart_000_0001_01C23ED5.0C2F0740--



From - Thu Nov 08 21:24:05 2018
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From: Randolph Chung <tausq@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Booting Debian on an HP C180 workstation
Date: Thu, 8 Aug 2002 11:20:36 -0700
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To: Sean Anaya <sanaya@gr.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:15773

> So I finally had a chance to install Debian 3.0 on my C180XP. So far looks
> great, install was
> far easier than the 0.9.3 CD, and I'm not seeing any of the file system
> corruptions. However,
> I'm still fighting a couple of battles.

note that this is not the right forum for this kind of questions; please
use debian-hppa@lists.debian.org instead.

> 1) where do you find the keywords to packages to install with apt-get
> install <some package>?
>    ie apt-get install xfree86  doesn't seem to work. I'd like to get the ftp
> and telnet daemons
>    working so I can ftp and telnet into my box, as well as X window system.

apt-cache search <search regexp>

randolph


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From: "B. Douglas Hilton" <bdhilton@charter.net>
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Subject: [parisc-linux] Help! eth0 has disappeared on C200?
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I'm not sure what happened, but my C200 is
no longer detecting any of its network
interfaces. They did work before as I
installed Debian using the 10/100 port.

Any ideas what is going on here or what
I can do to remedy this?

- Doug




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Subject: [parisc-linux] LinuxWorld China 2002ֻ뺯ѣ
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    LinuxWorld China 2002ֻ뺯ѣ


    LinuxWorld Chinaչޣ޹˾죬õżҵȨȫ֧֡

LinuxWorld ChinaּڴٽϢ̡רҵʿҵûLinuxӦá񼰹ĽӦгľ޴ǱƶLinuxϵͳLinuxƽ̨ĸӦĿԼڹ񾭼øڵĹ㷺ʹãƽҵϢ衣

ƣLinuxWorld China 2002

ʱ/ص㣺200293գ   йƵ
200295գ Ϻ  ʹ󶼴󷹵

⣺ ʵҵLinuxӦ

ʽ ֻ+Ʒչʾ

ֻ᣺ Ϊݽ۴ᡢרҵ󲿷֣ۼ50ೡ漰ɹѵȸ档

Ʒչʾ չʾҵµӲƷֱû̡רҵȽЧͨ

ѯ绰(010)83152644-127

򿪸еıдǽдϢȷϺ볡ȯڴ룡 

    >>Ϣĸе 

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From: "B. Douglas Hilton" <bdhilton@charter.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Update Re: Help! eth0 has disappeared on C200?
Date: Fri, 09 Aug 2002 00:47:04 -0400
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I did some more testing and have found that
this might be some kind of firmware problem.

Here's what I'm getting from the firmware.



Configuration Menu: Enter Command > lc auto

No LAN device.
Configuration Menu: Enter Command >


I think my battery is going dead, could this
be part of the problem? Has the tulip lost
is flash? Is my firmware corrupted? Is there
any hope of restoring the LAN? I'm worried...


Thanks,

- Doug



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From: "kenneth westelinck" <kennywest1@hotmail.com>
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Subject: Re: [parisc-linux] About the 2.4.19-pa0 kernel ...
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Xref: news.gmane.org gmane.linux.ports.parisc:15777

Thanks for your reply. I'll try a newer kernel version tonight.

----- Original Message -----
From: "Ralf Hildebrandt" <Ralf.Hildebrandt@charite.de>
To: "kenneth westelinck" <kennywest1@hotmail.com>
Cc: <parisc-linux@parisc-linux.org>
Sent: Thursday, August 08, 2002 2:10 PM
Subject: Re: [parisc-linux] About the 2.4.19-pa0 kernel ...


> On Tue, Aug 06, 2002 at 09:03:47AM +0200, kenneth westelinck wrote:
>
> > Yesterday I've built the 2.4.19-pa0 kernel and it seems to work fine at
> > first sight (I did a make oldconfig with the config from the
2.4.18-pa56).
> > However, the powerbutton ceased working. It was working fine with the
> > 2.4.18-pa56 kernel. Has anything changed near the code that handles
this?
> > Can someone else with a 712 confirm this behaviour?
>
> The power button on a 712/80 works just fine with 2.4.19-pa2!
>
> --
> Ralf Hildebrandt (Im Auftrag des Referat V A)
Ralf.Hildebrandt@charite.de
> Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450
570-155
> Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450
570-916
> To sysadmin or not to sysadmin... that is the question, whether tis
> nobler in the minde to suffer the slings and arrowes of outragious
> fortune, or climb to the top of the building with a fucking high-power
> rifle and scope.
>


From - Thu Nov 08 21:24:05 2018
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From: "MONTESANTI,DOMENICO (HP-Belgium,ex1)" <domenico_montesanti@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] palinux-0.9.3.iso installation :Help
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Hi,
 
To start in the linux world,I am trying to install the palinux on my
workstation (HP9000/B160 L).
I performed the following steps:
 
Downloaded de image from the servercoe.atl.hp.com web site
Burnt the image on a CD
 
and I am stuck here as this CD looks like it is not bootable.
 
The error message is:
 
IPL error: bad LIF magic.
Error Reading IPL
 
Could you please advise/help me.
 
Many thanks,
 
Best regards,
 

Domenico Montesanti 
HP Managed Services - Delivery EMEA/WISO
UX/MPE Production Engineering
Belgium Office 
www.hp.be <http://www.hp.be>  
 <http://www.hp.com> 
Email: domenico_montesanti@hp.com <mailto:domenico_montesanti@hp.com> 
 
Fax:  +32 2 778 33 49 
Telnet: 710-3340
Tel:  +32 2 778 33 40 
 

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<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002>Hi,</SPAN></FONT></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002></SPAN></FONT></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002>To start in the linux world,I am trying to =
install the=20
palinux on my workstation (HP9000/B160 L).</SPAN></FONT></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002>I&nbsp;performed the following=20
steps:</SPAN></FONT></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002></SPAN></FONT></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002>Downloaded de image from the =
servercoe.atl.hp.com web=20
site</SPAN></FONT></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002>Burnt the image on a =
CD</SPAN></FONT></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002></SPAN></FONT></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002>and I am stuck here as this CD looks like it =
is not=20
bootable.</SPAN></FONT></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002></SPAN></FONT></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002>The error message =
is:</SPAN></FONT></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002></SPAN></FONT></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002>IPL error: bad LIF =
magic.</SPAN></FONT></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002>Error Reading IPL</SPAN></FONT></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002></SPAN></FONT></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002>Could you please advise/help=20
me.</SPAN></FONT></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002></SPAN></FONT></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002>Many thanks,</SPAN></FONT></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002></SPAN></FONT></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002>Best regards,</SPAN></FONT></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D302265808-09082002></SPAN></FONT></FONT>&nbsp;</P>
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      <P class=3DMsoNormal><B><SPAN=20
      style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Domenico=20
      Montesanti</SPAN></B><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Verdana">=20
      <BR>HP Managed Services &#8211; Delivery =
EMEA/WISO<o:p></o:p></SPAN></P>
      <P class=3DMsoNormal><SPAN=20
      style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Verdana">UX/MPE Production =

      Engineering<o:p></o:p></SPAN></P>
      <P class=3DMsoNormal><SPAN=20
      style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Belgium Office =
<BR><A=20
      href=3D"http://www.hp.be">www.hp.be</A> </SPAN></P></TD>
    <TD=20
    style=3D"PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: =
0in; WIDTH: 105pt; PADDING-TOP: 0in"=20
    noWrap width=3D140>
      <P class=3DMsoNormal><A href=3D"http://www.hp.com"><SPAN=20
      style=3D"TEXT-DECORATION: none; text-underline: none"><IMG =
id=3D_x0000_i1025=20
      height=3D131 src=3D"cid:302265808@09082002-1953" width=3D140=20
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0in; PADDING-TOP: 0in"=20
    noWrap>
      <P class=3DMsoNormal><SPAN=20
      style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Email: <A=20
      =
href=3D"mailto:domenico_montesanti@hp.com">domenico_montesanti@hp.com</A=
><BR><SPAN=20
      style=3D"mso-spacerun: yes">&nbsp;</SPAN><BR>Fax:<SPAN=20
      style=3D"mso-spacerun: yes">&nbsp; </SPAN>+32 2 778 33 49=20
      <o:p></o:p></SPAN></P>
      <P class=3DMsoNormal><SPAN=20
      style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Telnet:=20
      710-3340<BR>Tel:<SPAN style=3D"mso-spacerun: yes">&nbsp; =
</SPAN>+32 2 778 33=20
      40 </SPAN></P></TD></TR></TBODY></TABLE>
<P=20
class=3DMsoNormal><![if =
!supportEmptyParas]><![endif]>&nbsp;<o:p></o:p></P></DIV></BODY></HTML>

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   רҡ֣עᡢɵ½

    Ƿкܶվe-MailBBSҺȵʻ룿ǷܹȫļעǣGatorԱ԰ЩҲȥЩĶˣеûȫGatorͼ䣬עΪĳվĻԱʱֻһһڰидϣGatorͨ˸ְȫ˽֤İȫԾԵı֤
     
    ȫѵģطַڸ:)

    ע⣺300KǲûĿҪ~~
 

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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] palinux-0.9.3.iso installation :Help
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"MONTESANTI,DOMENICO (HP-Belgium,ex1)" wrote:
> Hi,
>  
> To start in the linux world,I am trying to install the palinux on my
> workstation (HP9000/B160 L).
> I performed the following steps:
>  
> Downloaded de image from the servercoe.atl.hp.com web site

Can you tell us the image name?
You can also look at www.parisc-linux.org for Debian 3.0 hppa images.

> IPL error: bad LIF magic.
> Error Reading IPL

that's typically a problem of the CD not being burned correctly.
Are you using linux to burn the CD?

You might search the mail archives since other folks have seen
this kind of problem as well:
	http://lists.parisc-linux.org/

grant


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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] "Config.in" File in linux/drivers/char has a bug !
Date: Sun, 11 Aug 2002 19:03:58 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:15781

Hello PA-RISC community !

After this CVS update, I could not find my PDC_CONSOLE
driver to configure any more. I think, the part 

   if [ "$CONFIG_PARISC" = "y" ]; then
     bool '  PDC software console support' CONFIG_PDC_CONSOLE
   fi

is inserted at a wrong place, it is nested with the

if [ "$CONFIG_FOOTBRIDGE" = "y" ]; then
	:
	:
fi

... which is wrong for HP PDC console.
Or do I not understand the "FOOTBRIDGE" stuff ?

So the fix should be:

Index: drivers/char/Config.in
===================================================================
RCS file: /var/cvs/linux/drivers/char/Config.in,v
retrieving revision 1.23
diff -u -r1.23 Config.in
--- drivers/char/Config.in      4 Aug 2002 22:58:10 -0000       1.23
+++ drivers/char/Config.in      11 Aug 2002 17:03:04 -0000
@@ -114,9 +114,9 @@
          bool '        Enable Au1000 serial console'
CONFIG_AU1000_SERIAL_CONSOLE
      fi
    fi
-   if [ "$CONFIG_PARISC" = "y" ]; then
-     bool '  PDC software console support' CONFIG_PDC_CONSOLE
-   fi
+fi
+if [ "$CONFIG_PARISC" = "y" ]; then
+   bool '  PDC software console support' CONFIG_PDC_CONSOLE
 fi
 if [ "$CONFIG_MIPS_ITE8172" = "y" ]; then
    bool 'Enable Qtronix 990P Keyboard Support' CONFIG_QTRONIX_KEYBOARD


With friendly regards
Christoph P

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] Updated parisc-linux .cvsrc
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Thibaut found an interesting problem today when he checked out a fresh
linux tree from cvs.  The build failed because he had an empty
scripts/cramfs directory.  I looked at my tree and did not have this
directory so the kernel would build fine for me.  Also cvs update did
not update my tree with this directory either.

Matt Taggart finally figured out that the update had the -P (prune)
option, and the checkout option did not.  Adding the -P option to the
checkout command fixed this problem.

I have updated the build-tools/cvsrc in the cvs repository that everyone
should be using ... please update if you are using cvs.

Thanks,

- Ryan



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Ryan Bradetich said:
> Matt Taggart finally figured out that the update had the -P (prune)
> option, and the checkout option did not.  Adding the -P option to the
> checkout command fixed this problem.

In my experience it has been more common to fix the repository.  =)

> I have updated the build-tools/cvsrc in the cvs repository that everyone
> should be using ... please update if you are using cvs.

Thanks for doing that Ryan.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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On Mon, 12 Aug 2002 15:58:40 +0800
Andrew Shugg <andrew@neep.com.au> wrote:

> Ryan Bradetich said:
> > Matt Taggart finally figured out that the update had the -P (prune)
> > option, and the checkout option did not.  Adding the -P option to the
> > checkout command fixed this problem.
> 
> In my experience it has been more common to fix the repository.  =)
Heh, sure, but this is not actually *possible*, so to speak: Matt pointed out that folders can't be removed from the repository, since they are mandatory to keep the 'Attic' in them.
That allows anyone to grab an old version of the kernel, using cvs tags...


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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Thibaut VARENE said:
> > In my experience it has been more common to fix the repository.  =)
> 
> Heh, sure, but this is not actually *possible*, so to speak: Matt
> pointed out that folders can't be removed from the repository, since
> they are mandatory to keep the 'Attic' in them.
> 
> That allows anyone to grab an old version of the kernel, using cvs
> tags...

Oh I know, I'm aware of that, it was more of a joke.  Some people use
CVS in a very carefree manner (shared bitbucket) and aren't really too
worried about breaking old versions.  Why do they use CVS then?  Good
question ... because it's there, I suppose.

Of course this is one of the main weaknesses in CVS, in case anyone out
there thinks it's the best thing since sliced bread: no revision control
on directories (folders/containers/collections/whatever).  =)

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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Hello,

I would like to know if the Linux version for HP PA-RISC servers suppors
FC60 Disk arrays.

Thanks in advance.

Antonio

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class=3D370102515-12082002></SPAN></FONT>&nbsp;</DIV>
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in=20
advance.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D370102515-12082002></SPAN></FONT>&nbsp;</DIV>
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--= Multipart Boundary 0812022338--


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From: Ryan Bradetich <rbradetich@uswest.net>
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Antonio,

Probably unknown at this time.

I do have access to an FC60 and could try to hookup a system to it
later this week if no one else has tried it.

Thanks,

- Ryan



On Mon, 2002-08-12 at 09:27, Ant=F3nio Ribeiro wrote:
> Hello,
>=20
> I would like to know if the Linux version for HP PA-RISC servers suppors
> FC60 Disk arrays.
>=20
> Thanks in advance.
>=20
> Antonio




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Subject: Re: [parisc-linux] PA-RISC Linux + FC60
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=?iso-8859-1?Q?Ant=F3nio_Ribeiro?= wrote:
> I would like to know if the Linux version for HP PA-RISC servers suppors
> FC60 Disk arrays.

I've not tried the qlogic card/driver yet. Only the Agilent based HP cards.

Jes Sorensen posted a cpqfc patch for HP's 5100/5166 Agilent HBAs.
(ftp://ftp.parisc-linux.org/patches/cpqfc_jes.patch)
It seems to work with FC10.  If it's not in 2.4.19, I'll commit and
resubmit in the next couple of days.  And unless someone tells me
otherwise, I'm going to believe the comments in cpqfc which indicate
cpqfc only supports arbitrated loop and not a switched fabric.

cpqfc also does not (yet) support the HP's Agilent XL2 (2GB FC) HBA.
With newer PCI subsystem in place, another patch is required
(ftp://ftp.parisc-linux.org/patches/cpqfc-03.diff) to run on A500.
The NVRAM isn't found and the "GBIC" not recognized on A500.
The patch is not fully cooked yet.

If someone has extra funding, the right folks are interested in
porting the HPUX tachlite driver to linux (supports switched fabric).
Unfortunately, HP has chosen to not fund the port to date.
I'm under the impression the result can be published under GPL.

grant


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Subject: [parisc-linux] Installation issue on 800/F10.
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Hi all,
well I try to install the latest Debian on my (very ? ) old HP9000 
800/F10, but I have the following message :

"Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org"

I am ok to switch whatever it wants, but I don't really see what I can 
switch.
For your information, I use a Wyse screen (a vt220 I think) plugged to 
the console port on a SCSI/Console/LAN card.

Any idea ?

Thanks in advance !
Rgds,
Eric.

-- 
Eric Boniface - Hewlett Packard / HPS-IT Infrastructure Team Grenoble 
Tel.(+33) 4 76 14 30 17 / Telnet : 779-3017
E-mail : eric_boniface@non.hp.com 
--- Want to know more about Linux on HP PARISC ? Take a look at http://www.parisc-linux.org







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Hi all,

I would like to use my old 712's as a router for my lab setups. 
Unfortunately they
have only 1 NIC built in...;-)

1) Are there any add-on NICs for the 712 available (preferably for only 
little money) ?
2) More important, are they supported by the kernel ?

About the kernel: Great work, both my 712's and my 715's are working 
great. 
Thanks a lot to the ones who made that possible !!

Thomas



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Subject: Re: [parisc-linux] Additional Network Cards for 712
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On Mon, Aug 12, 2002 at 07:46:49PM +0200, Thomas Schmid wrote:
> 1) Are there any add-on NICs for the 712 available (preferably for only 
> little money) ?

they're very specialised and quite rare.

> 2) More important, are they supported by the kernel ?

yes, they're the same chip as is on the motherboard, and the driver
handles multiple devices.

-- 
Revolutions do not require corporate support.


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On Mon, Aug 12, 2002 at 07:12:47PM +0100, Matthew Wilcox wrote:
> On Mon, Aug 12, 2002 at 07:46:49PM +0200, Thomas Schmid wrote:
> > 1) Are there any add-on NICs for the 712 available (preferably for
> > only little money) ?
> they're very specialised and quite rare.
> 
> > 2) More important, are they supported by the kernel ?
> yes, they're the same chip as is on the motherboard, and the driver
> handles multiple devices.

Did 712 have EISA? Anyway, 715 does. Are there any (E)ISA cards
supported by the linux kernel? Is there an HCL for cards?

-- 
Java users do not need serious computing power, Java does.
		-- Andrew J. Brehm, Scary Devil Monastery



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On Mon, Aug 12, 2002 at 09:16:10PM +0300, Harri Haataja wrote:
> Did 712 have EISA? Anyway, 715 does. Are there any (E)ISA cards
> supported by the linux kernel? Is there an HCL for cards?

712 did not have EISA, it wouldn't've fitten in the form factor.
Some ISA/EISA network cards have drivers that can cope with a big-endian
machine.  I've used a 100VG card in a 715 myself.  There's no real HCL
for cards... someone want to write one?  ;-)

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] Additional Network Cards for 712
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--- Harri Haataja <harri.haataja@cs.helsinki.fi> wrote:
> On Mon, Aug 12, 2002 at 07:12:47PM +0100, Matthew Wilcox wrote:
> > On Mon, Aug 12, 2002 at 07:46:49PM +0200, Thomas Schmid wrote:
> > > 1) Are there any add-on NICs for the 712 available (preferably
> for
> > > only little money) ?
> > they're very specialised and quite rare.
> > 
> > > 2) More important, are they supported by the kernel ?
> > yes, they're the same chip as is on the motherboard, and the driver
> > handles multiple devices.
> 
> Did 712 have EISA? Anyway, 715 does. Are there any (E)ISA cards
> supported by the linux kernel? Is there an HCL for cards?
> 
If you are interested in the part# here it is A2263-66536 HP list price
from our internal site is $410.00.

Quick search of the parisc/linux yeilded:

Pinout for RS232/AUI cable(A2263-62045) for 712 card (A2263-66536)
------------------------------------------------------------------
There is a card for the 712(HP part #A2263-66536) that provides 2nd AUI
lan
and 2nd DB9 RS232 port. The back of the card has a 26 pin connector and
the
15pin AUI and 9pin RS232 connectors are provided by a special Y cable
(A2263-62045) which are pretty hard to find. Here is the pinout of this
cable
in case you need to make one.

These diagrams are looking at the end of the connector not the back.
Make
sure to take that into account if building a cable. Pin numbering is
taken
from the numbers on the plastic in the cable. If a pin is not connected
it
is represented as an "o". The numbers outside the bottom connectors are
the
pin numbers that that pin is connected to on the top connector.


                 ---------------------------------
                 \     o  o  3  o  o  o  7  8  9 /
                  \  10 11 12 13  o  o 16 17 18 /
                   \  19 20 21 22  o 24 25 26  /
                     -------------------------

               12 13    20 19                 18  9  8  7  24
       ---------------------------           -----------------
  AUI   \ o  o  6  5  o  3  2  o /           \ 1  2  3  4  5 / RS232
         \  o 10 11 12  o 14 15 /             \  6  7  8  9 /
          ---------------------                ------------
              22 21  3    11 10                 26 25 17 16


Send questions or problems to Matt Taggart <taggart@fc.hp.com>

Hope this helps......by the way if you can find a V-Class test station
console that is a 712, it has the additional LAN/RS-232 card.

derek

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Well, I have an F20 at home that I could try to load tonight and see if
I get the same issue.  I'm using an HP Terminal.  I'll try it.

derek

--- Eric Boniface <eric_boniface@non.hp.com> wrote:
> 
> 
> 
> Hi all,
> well I try to install the latest Debian on my (very ? ) old HP9000 
> 800/F10, but I have the following message :
> 
> "Branching to kernel entry point 0x00100000.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at
> parisc-linux.org"
> 
> I am ok to switch whatever it wants, but I don't really see what I
> can 
> switch.
> For your information, I use a Wyse screen (a vt220 I think) plugged
> to 
> the console port on a SCSI/Console/LAN card.
> 
> Any idea ?
> 
> Thanks in advance !
> Rgds,
> Eric.
> 
> -- 
> Eric Boniface - Hewlett Packard / HPS-IT Infrastructure Team Grenoble
> 
> Tel.(+33) 4 76 14 30 17 / Telnet : 779-3017
> E-mail : eric_boniface@non.hp.com 
> --- Want to know more about Linux on HP PARISC ? Take a look at
> http://www.parisc-linux.org
> 
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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On Mon, 12 Aug 2002 19:12:47 +0100
Matthew Wilcox <willy@debian.org> wrote:

> On Mon, Aug 12, 2002 at 07:46:49PM +0200, Thomas Schmid wrote:
> > 1) Are there any add-on NICs for the 712 available (preferably for only 
> > little money) ?
> 
> they're very specialised and quite rare.

We had some here in the office in the past for support and with the upcoming V class test stations (which are 712) these cards must have
gotten a real
boost in the factory since the test station (basically the console)
has a separate lan connection with the V class.

One needs a special cable to separate the signals since the card has a second serial port as well. Even if you don't buy the cable the 
part no. might be useful when looking for infos: A2263-62045.
If the cards part no. is needed, let me know.

> 
> > 2) More important, are they supported by the kernel ?
> 
> yes, they're the same chip as is on the motherboard, and the driver
> handles multiple devices.

This is a good point in time to finally thank Helge Deller for fixing a bug in the driver. I was experimenting with my 712/80 at home with the
2nd lancard and could not get it to work. It showed up correctly in the
hw scan but the driver did not allocate a second interface eth1.
(tiny thread july last year: problem activating the optional lan card on 712/80)

He made a quick fix for that and indeed it worked. 


cheers,
Holgi


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On Mon, 12 Aug 2002 18:49:32 +0200
Eric Boniface <eric_boniface@non.hp.com> wrote:
 
> I am ok to switch whatever it wants, but I don't really see what I can 
> switch.
For any information on PARISC-Linux boot sequence, you can get the latest (still under review) PARISC-Linux Boot HowTo here:
http://testpa.esiee.fr/.test/parisc-linux-boot.[html|pdf]
Look at the 'Consoles' section.

Any feedback about errors or precisions would be greatly appreciated.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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Subject: Re: [parisc-linux] Installation issue on 800/F10.
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By the way that site also states that the F,G,H,I series are not
supported....fwiw.

derek

--- Thibaut VARENE <varenet@esiee.fr> wrote:
> On Mon, 12 Aug 2002 18:49:32 +0200
> Eric Boniface <eric_boniface@non.hp.com> wrote:
>  
> > I am ok to switch whatever it wants, but I don't really see what I
> can 
> > switch.
> For any information on PARISC-Linux boot sequence, you can get the
> latest (still under review) PARISC-Linux Boot HowTo here:
> http://testpa.esiee.fr/.test/parisc-linux-boot.[html|pdf]
> Look at the 'Consoles' section.
> 
> Any feedback about errors or precisions would be greatly appreciated.
> 
> 
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://pateam.esiee.fr/
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


__________________________________________________
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Subject: Re: [parisc-linux] Installation issue on 800/F10.
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That is true to a point.  There has been a some work done on the 
nova class systems mainly by Christoph Platner to get the E series
working, and I belive Christoph does have a root nfs E55 running.  The
problem with the nova class systems are that documentation is sparse
and very hard to obtain.

First thing you need to do is configure a kernel with the PDC console 
support.  the nova class systems do not have a hardware console solution
(The K-class systems have this same problem).  You could also try to
enable the EARLY_BOOTUP_DEBUG in arch/parisc/kernel/pdc_cons.c to see
if that helps.

Good luck!

- Ryan


On Mon, 2002-08-12 at 16:03, Derek Engelhaupt wrote:
> By the way that site also states that the F,G,H,I series are not
> supported....fwiw.
> 
> derek
> 
> --- Thibaut VARENE <varenet@esiee.fr> wrote:
> > On Mon, 12 Aug 2002 18:49:32 +0200
> > Eric Boniface <eric_boniface@non.hp.com> wrote:
> >  
> > > I am ok to switch whatever it wants, but I don't really see what I
> > can 
> > > switch.
> > For any information on PARISC-Linux boot sequence, you can get the
> > latest (still under review) PARISC-Linux Boot HowTo here:
> > http://testpa.esiee.fr/.test/parisc-linux-boot.[html|pdf]
> > Look at the 'Consoles' section.
> > 
> > Any feedback about errors or precisions would be greatly appreciated.
> > 
> > 
> > Thibaut VARENE
> > The PA/Linux ESIEE Team
> > http://pateam.esiee.fr/
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
> __________________________________________________
> Do You Yahoo!?
> HotJobs - Search Thousands of New Jobs
> http://www.hotjobs.com
> _______________________________________________
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> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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Subject: Re: [parisc-linux] Installation issue on 800/F10.
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Hello !

You are in similar position than I, the machines are not
supported for now. 

BUT, perhaps I can help you to go some further steps.
The machines have a proprietary bus system and also
proprietary interface chips.

To get my E55 running, I wrote a device driver using
the ROM console (used for the boot monitor) as system
console under Linux. 

Rebuild the linux kernel with CONFIG_PDC_CONSOLE enabled
and follow the help steps for setting up the machine:

1. create "/dev/ttyB0" as character device, major=60,
	minor=0 with
	
	mknod /dev/ttyB0 c 60 0

2. edit /etc/inittab to use ttyB0 instead of ttyS0 
	or tty1, ... to be able to login

3. add or change to kernel parameter line to use

	console=ttyB0

This should work, or let's say, should give process
in booting.

One further point: Be patient on this point of kernel
output. On some machines or dependent of the kernel 
version (or whatever), sometimes you have to wait up
to half a minute here ...

With friendly regards
Christoph


Eric Boniface wrote:
> 
> Hi all,
> well I try to install the latest Debian on my (very ? ) old HP9000
> 800/F10, but I have the following message :
> 
> "Branching to kernel entry point 0x00100000.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org"
> 
> I am ok to switch whatever it wants, but I don't really see what I can
> switch.
> For your information, I use a Wyse screen (a vt220 I think) plugged to
> the console port on a SCSI/Console/LAN card.
> 
> Any idea ?
> 
> Thanks in advance !
> Rgds,
> Eric.
> 
> --
> Eric Boniface - Hewlett Packard / HPS-IT Infrastructure Team Grenoble
> Tel.(+33) 4 76 14 30 17 / Telnet : 779-3017
> E-mail : eric_boniface@non.hp.com
> --- Want to know more about Linux on HP PARISC ? Take a look at http://www.parisc-linux.org
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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On Tue, 13 Aug 2002 00:17:19 +0200
Christoph Plattner <christoph.plattner@gmx.at> wrote:

> 
> Rebuild the linux kernel with CONFIG_PDC_CONSOLE enabled
> and follow the help steps for setting up the machine:
You can try one of the handy PDC enabled ISO/lifimages available at:
http://pateam.esiee.fr/cd-images/lifimages/
http://pateam.esiee.fr/cd-images/testing/

PDC enabled are tagged -PDC-
the latest one features 2.4.19-pa2 kernel

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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      LinuxWorld China 2002ֻ뺯ѣ 


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LinuxWorld ChinaּڴٽϢ̡רҵʿҵûLinuxӦá񼰹ĽӦгľ޴ǱƶLinuxϵͳLinuxƽ̨ĸӦĿԼڹ񾭼øڵĹ㷺ʹãƽҵϢ衣

ƣLinuxWorld China 2002

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200295գ Ϻ  ʹ󶼴󷹵

⣺ ʵҵLinuxӦ

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ֻ᣺ Ϊݽ۴ᡢרҵ󲿷֣ۼ50ೡ漰ɹѵȸ档

Ʒչʾ չʾҵµӲƷֱû̡רҵȽЧͨ

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--= Multipart Boundary 0813021159--


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Subject: [parisc-linux] SMP problem on K210/819
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SMP CALL FUNCTION TIMED OUT! (cpu=0)
SMP CALL FUNCTION TIMED OUT! (cpu=1)
SMP CALL FUNCTION TIMED OUT! (cpu=3)
SMP CALL FUNCTION TIMED OUT! (cpu=0)
SMP CALL FUNCTION TIMED OUT! (cpu=1)
SMP CALL FUNCTION TIMED OUT! (cpu=3)
After 17 days UP my server with kernel 2.4.18-pa54 shows this messages
ANyone has explain for these strange msgs?





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Hello,

thanks/merci for your help.
I will check this and I will keep you informed.

Rgds,
Eric.

Thibaut VARENE wrote:

>On Tue, 13 Aug 2002 00:17:19 +0200
>Christoph Plattner <christoph.plattner@gmx.at> wrote:
>
>  
>
>>Rebuild the linux kernel with CONFIG_PDC_CONSOLE enabled
>>and follow the help steps for setting up the machine:
>>    
>>
>You can try one of the handy PDC enabled ISO/lifimages available at:
>http://pateam.esiee.fr/cd-images/lifimages/
>http://pateam.esiee.fr/cd-images/testing/
>
>PDC enabled are tagged -PDC-
>the latest one features 2.4.19-pa2 kernel
>
>HTH,
>
>
>Thibaut VARENE
>The PA/Linux ESIEE Team
>http://pateam.esiee.fr/
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>  
>

-- 
Eric BONIFACE - Hewlett Packard / GBIT-EMEA Infrastructure Team Grenoble
Tel.(+33) 4 76 14 30 17 / Telnet : 779-3017
E-mail : eric_boniface@non.hp.com






--------------000204030404010304030305
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <title></title>
</head>
<body>
Hello,<br>
<br>
thanks/merci for your help.<br>
I will check this and I will keep you informed.<br>
<br>
Rgds,<br>
Eric.<br>
<br>
Thibaut VARENE wrote:<br>
<blockquote type="cite"
 cite="mid20020813002340.53d3415a.varenet@esiee.fr">
  <pre wrap="">On Tue, 13 Aug 2002 00:17:19 +0200
Christoph Plattner <a class="moz-txt-link-rfc2396E" href="mailto:christoph.plattner@gmx.at">&lt;christoph.plattner@gmx.at&gt;</a> wrote:

  </pre>
  <blockquote type="cite">
    <pre wrap="">Rebuild the linux kernel with CONFIG_PDC_CONSOLE enabled
and follow the help steps for setting up the machine:
    </pre>
  </blockquote>
  <pre wrap=""><!---->You can try one of the handy PDC enabled ISO/lifimages available at:
<a class="moz-txt-link-freetext" href="http://pateam.esiee.fr/cd-images/lifimages/">http://pateam.esiee.fr/cd-images/lifimages/</a>
<a class="moz-txt-link-freetext" href="http://pateam.esiee.fr/cd-images/testing/">http://pateam.esiee.fr/cd-images/testing/</a>

PDC enabled are tagged -PDC-
the latest one features 2.4.19-pa2 kernel

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
<a class="moz-txt-link-freetext" href="http://pateam.esiee.fr/">http://pateam.esiee.fr/</a>
_______________________________________________
parisc-linux mailing list
<a class="moz-txt-link-abbreviated" href="mailto:parisc-linux@lists.parisc-linux.org">parisc-linux@lists.parisc-linux.org</a>
<a class="moz-txt-link-freetext" href="http://lists.parisc-linux.org/mailman/listinfo/parisc-linux">http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</a>

  </pre>
</blockquote>
<br>
<pre class="moz-signature" cols="$mailwrapcol">-- 
Eric BONIFACE - Hewlett Packard / GBIT-EMEA Infrastructure Team Grenoble
Tel.(+33) 4 76 14 30 17 / Telnet : 779-3017
E-mail : <a class="moz-txt-link-abbreviated" href="mailto:eric_boniface@non.hp.com">eric_boniface@non.hp.com</a>



</pre>
<br>
</body>
</html>

--------------000204030404010304030305--



From - Thu Nov 08 21:24:07 2018
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From: "Kaj-Michael Lang" <milang@tal.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] First test release of TA-Linux for parisc
Date: Tue, 13 Aug 2002 15:45:21 +0300
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I've been working on my own little distro for sometime now, and
I'm happy to announce the first test version of TA-Linux for parisc systems.

A bootable lifimage can be found here:
http://hotel.tal.org/pub/current/parisc/image/lifimage-20020812
and also from sourceforge:
http://sourceforge.net/project/showfiles.php?group_id=20130&release_id=10497
4

You should be able to perform a http install using the above image.
A couple of things that you need to know:
- Use http://hotel.tal.org/pub/current/parisc/ as install source url
- XFree86 is broken at this time.
- The installer is *very* simple, but works if you don't make any mistakes
:)
- Keymap install does not work, just skip over it.
- Palo needs to be installed manualy, but that shouldn't be a problem.

More information about TA-Linux can be found on its homepage:
http://www.tal.org/linux/talinux/

Enjoy :)

--
Kaj-Michael Lang , milang@tal.org



From - Thu Nov 08 21:24:07 2018
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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: [parisc-linux] RE: question setting up consoles, x and stuff
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------- Forwarded Message

From: "Sean Anaya" <sanaya@gr.hp.com>
To: "Grant Grundler" <grundler@dsl2.external.hp.com>
Subject: RE: question setting up consoles, x and stuff 
Date: Mon, 12 Aug 2002 15:05:09 -0600

Grant,

Here are the numbers I found on the GFX card I'm attempting to use:

A4246A Geo Accelerator

A56200754026     These are the numbers I grabed off the frame buffer
A4246-66002

These two cards are jumpered together. Since I'm not familiar with HP
hardware, I
hope I grabbed the correct part numbers.

Sean

> -----Original Message-----
> From: Grant Grundler [mailto:grundler@dsl2.external.hp.com]
> Sent: Friday, August 09, 2002 6:26 PM
> To: sanaya@gr.hp.com
> Subject: Re: question setting up consoles, x and stuff
>
>
> "Sean Anaya" wrote:
> > Hello,
> >
> > I just recently installed hppa debian on a C180XP machine. I'm
> having some
> > trouble getting X setup and wondered i there was someone who
> could spare a
> > little time help me out.
>
> Sean,
> post which type of gfx card you are trying to use and
> the /var/log/XFree86.0.log to the mailing list.
>
> grant


------- End of Forwarded Message



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From: =?iso-8859-1?Q?Ant=F3nio_Ribeiro?= <antonio.ribeiro@kpnqwest.pt>
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Subject: [parisc-linux] HP9000/L2000 + FC60 Fiber Support
Date: Tue, 13 Aug 2002 14:23:49 +0100
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Hi,

Can anyone let me know is this cards are supported and they can be attached
to the FC60 from HP.


  Bus 16, device   0, function  0:
    Fibre Channel: PCI device 103c:1028 (Hewlett-Packard Company) (rev 11).
      IRQ 256.
      Master Capable.  No bursts.  Min Gnt=32.
      I/O at 0x20000 [0x200ff].
      I/O at 0x20100 [0x201ff].
      Non-prefetchable 32 bit memory at 0xfffffffff9040000
[0xfffffffff90401ff].
      Non-prefetchable 32 bit memory at 0xfffffffff9000000
[0xfffffffff901ffff].
  Bus 24, device   0, function  0:
    Fibre Channel: PCI device 103c:1028 (Hewlett-Packard Company) (rev 11).
      IRQ 320.
      Master Capable.  No bursts.  Min Gnt=32.
      I/O at 0x30000 [0x300ff].
      I/O at 0x30100 [0x301ff].
      Non-prefetchable 32 bit memory at 0xfffffffff9840000
[0xfffffffff98401ff].
      Non-prefetchable 32 bit memory at 0xfffffffff9800000
[0xfffffffff981ffff].


Thanks.

Antonio



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] HP9000/L2000 + FC60 Fiber Support
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On Tue, Aug 13, 2002 at 02:23:49PM +0100, Antnio Ribeiro wrote:
>     Fibre Channel: PCI device 103c:1028 (Hewlett-Packard Company) (rev 11).

according to the latest pci.ids, this is:
Tach TL Fibre Channel Host Adapter

hope this helps someone determine whether or not it's supported.

-- 
Revolutions do not require corporate support.


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From: Robert Stanford <rob@rotapile.com>
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Subject: [parisc-linux] make menuconfig error in 2.4.19-pa3
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Working from the top down in menuconfig the error happened while trying
to enter character devices (more at the end)

Using,
crosscompiler xc-20020118.tar.gz

on debian sid x86

---

Kernel Version 2.4.19-pa3

---

Menuconfig has encountered a possible error in one of the kernel's
configuration files and is unable to continue.  Here is the error
report:

 Q> scripts/Menuconfig: MCmenu30: command not found

Please report this to the maintainer <mec@shout.net>.  You may also
send a problem report to <linux-kernel@vger.kernel.org>.

Please indicate the kernel version you are trying to configure and
which menu you were trying to enter when this error occurred.

make: *** [menuconfig] Error 1

---

.config file 


CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_EXPERIMENTAL=y
CONFIG_MODULES=y
CONFIG_KMOD=y
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PARISC64=y
CONFIG_SMP=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_KWDB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_ISA=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_SUPERIO=y
CONFIG_PCI_NAMES=y
CONFIG_HOTPLUG=y
CONFIG_NET=y
CONFIG_SYSVIPC=y
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=y
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_PARPORT_PC_CML1=y
CONFIG_PARPORT_GSC=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_MD_RAID5=y
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=y
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=y
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
CONFIG_53C700_USE_CONSISTENT=y
CONFIG_SCSI_ZALON=y
CONFIG_ASK_ZALON=y
CONFIG_SCSI_SYM53C8XX=y
CONFIG_ASK_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=y
CONFIG_NET_PCI=y
CONFIG_TULIP=y
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
CONFIG_EXT3_FS=y
CONFIG_JBD=y
CONFIG_RAMFS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_PROC_FS=y
CONFIG_DEVPTS_FS=y
CONFIG_EXT2_FS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FB_STI=y
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB32=y
CONFIG_FBCON_STI=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y
CONFIG_SOUND=y
CONFIG_SOUND_HARMONY=y
CONFIG_MAGIC_SYSRQ=y

---
---

And when running xconfig and trying to save the config I get

---

Stack Trace for Error

zcan't read "CONFIG_MTD": no such variable
    while executing
"list $CONFIG_MTD"
    (procedure "writeconfig" line 1992)
    invoked from within
"writeconfig .config include/linux/autoconf.h"
    invoked from within
".f0.right.save invoke"
    ("uplevel" body line 1)
    invoked from within
"uplevel #0 [list $w invoke]"
    (procedure "tkButtonUp" line 7)
    invoked from within
"tkButtonUp .f0.right.save
"
    (command bound to event)

---
---

When runing make config I get

---

  Stallion multiport serial support (CONFIG_STALDRV) [N/y/?] 
  PDC software console support (CONFIG_PDC_CONSOLE) [Y/n/?] 
scripts/Configure: drivers/char/Config.in: line 121: syntax error near
unexpected token `fi'
scripts/Configure: drivers/char/Config.in: line 121: `fi'
*
HIL support
*
*
* Input support needed for HIL support
*
*
* Multimedia devices
*
Video For Linux (CONFIG_VIDEO_DEV) [N/y/m/?] 

and it continues ok and seems to save a complete .config

---
---

make palo
gives 

---

make[1]: Leaving directory `/usr/src/source/linux/arch/parisc/tools'
make CFLAGS="-D__KERNEL__ -I/usr/src/source/linux/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
-fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce
-mno-space-regs -mfast-indirect-calls -mdisable-fpregs
-ffunction-sections -march=2.0 -mschedule=8000 " -C  arch/parisc/kernel
make[1]: Entering directory `/usr/src/source/linux/arch/parisc/kernel'
hppa64-linux-gcc -D__KERNEL__ -I/usr/src/source/linux/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
-fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce
-mno-space-regs -mfast-indirect-calls -mdisable-fpregs
-ffunction-sections -march=2.0 -mschedule=8000   -nostdinc -I
/opt/palinux/lib/gcc-lib/hppa64-linux/3.0.3/include
-DKBUILD_BASENAME=cache  -c -o cache.o cache.c
hppa64-linux-gcc -D__ASSEMBLY__ -traditional -D__KERNEL__
-I/usr/src/source/linux/include  -c -o pacache.o pacache.S
hppa64-linux-gcc -D__KERNEL__ -I/usr/src/source/linux/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
-fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce
-mno-space-regs -mfast-indirect-calls -mdisable-fpregs
-ffunction-sections -march=2.0 -mschedule=8000   -nostdinc -I
/opt/palinux/lib/gcc-lib/hppa64-linux/3.0.3/include
-DKBUILD_BASENAME=setup  -c -o setup.o setup.c
hppa64-linux-gcc -D__KERNEL__ -I/usr/src/source/linux/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
-fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce
-mno-space-regs -mfast-indirect-calls -mdisable-fpregs
-ffunction-sections -march=2.0 -mschedule=8000   -nostdinc -I
/opt/palinux/lib/gcc-lib/hppa64-linux/3.0.3/include
-DKBUILD_BASENAME=traps  -c -o traps.o traps.c
traps.c:41:55: kdb/break.h: No such file or directory
traps.c:42:47: kdb/kgdb_types.h: No such file or directory
traps.c:43:60: kdb/save_state.h: No such file or directory
traps.c:44:76: kdb/kgdb_machine.h: No such file or directory
traps.c:45:53: kdb/trap.h: No such file or directory
traps.c: In function `handle_break':
traps.c:264: storage size of `ssp' isn't known
traps.c:289: `KGDB_BREAK_INSN' undeclared (first use in this function)
traps.c:289: (Each undeclared identifier is reported only once
traps.c:289: for each function it appears in.)
traps.c:291: warning: implicit declaration of function `pt_regs_to_ssp'
traps.c:292: warning: implicit declaration of function `kgdb_trap'
traps.c:292: `I_BRK_INST' undeclared (first use in this function)
traps.c:293: warning: implicit declaration of function `ssp_to_pt_regs'
traps.c:296: `KGDB_INIT_BREAK_INSN' undeclared (first use in this
function)
traps.c:264: warning: unused variable `ssp'
traps.c: In function `handle_interruption':
traps.c:474: storage size of `ssp' isn't known
traps.c:614: `I_TAKEN_BR' undeclared (first use in this function)
traps.c:474: warning: unused variable `ssp'
make[1]: *** [traps.o] Error 1
make[1]: Leaving directory `/usr/src/source/linux/arch/parisc/kernel'
make: *** [_dir_arch/parisc/kernel] Error 2
rotapile:/usr/src/source/linux# make palo

---

Robert Stanford



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> - XFree86 is broken at this time.

Small update.. the xfree86 package is now fixed. 

--
Kaj-Michael Lang , milang@tal.org


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I read in the mailing list (*after* I bought the cards <kicks self in
shin>) that EISA support is probably not all their vis-a-vis a bus
master card like the 3c597. What's the current status? Where can I help?
I have a C180 with a couple 3c597's. Here's the relevant boot message:

---
Wax at 0xffe00000 found.
Wax: HIL Keyboard-NMI registered.
Wax EISA Adapter found at 0xfc000000
EISA EEPROM at 0xffc88000
Enumerating EISA bus
EISA slot 1 a configured board was not detected ( expected ___FFFF)
Dino version 2.1 found at 0xf2000000
The GSCtoPCI (Dino hrev 1) bus converter found may exhibit
data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.
Systems shipped after Aug 20, 1997 will not exhibit this problem.
Models affected: C180, C160, C160L, B160L, and B132L workstations.

Dino: No PCI devices enabled.
---

And I seem to get a kernel panic any time I probe the driver module...

-- 
chris jantzen kb7rnl =->         __O
Insert witty comment here.     _`\<,_
http://www.maybe.net/         (*)/ (*)


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Subject: Re: [parisc-linux] make menuconfig error in 2.4.19-pa3
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Robert,

I fixed this error yesterday.  Try to cvs update again
and recompile.

sorry for the error.

thanks,

- Ryan

On Wed, 2002-08-14 at 05:53, Robert Stanford wrote:
> Working from the top down in menuconfig the error happened while trying
> to enter character devices (more at the end)
> 
> Using,
> crosscompiler xc-20020118.tar.gz
> 
> on debian sid x86
> 
> ---
> 
> Kernel Version 2.4.19-pa3
> 
> ---
> 
> Menuconfig has encountered a possible error in one of the kernel's
> configuration files and is unable to continue.  Here is the error
> report:
> 
>  Q> scripts/Menuconfig: MCmenu30: command not found
> 
> Please report this to the maintainer <mec@shout.net>.  You may also
> send a problem report to <linux-kernel@vger.kernel.org>.
> 
> Please indicate the kernel version you are trying to configure and
> which menu you were trying to enter when this error occurred.
> 
> make: *** [menuconfig] Error 1
> 
> ---
> 
> .config file 
> 
> 
> CONFIG_RWSEM_GENERIC_SPINLOCK=y
> CONFIG_EXPERIMENTAL=y
> CONFIG_MODULES=y
> CONFIG_KMOD=y
> CONFIG_PA8X00=y
> CONFIG_PA20=y
> CONFIG_PARISC64=y
> CONFIG_SMP=y
> CONFIG_CHASSIS_LCD_LED=y
> CONFIG_KWDB=y
> CONFIG_IOMMU_CCIO=y
> CONFIG_GSC=y
> CONFIG_GSC_LASI=y
> CONFIG_GSC_WAX=y
> CONFIG_EISA=y
> CONFIG_ISA=y
> CONFIG_PCI=y
> CONFIG_GSC_DINO=y
> CONFIG_PCI_LBA=y
> CONFIG_IOSAPIC=y
> CONFIG_IOMMU_SBA=y
> CONFIG_SUPERIO=y
> CONFIG_PCI_NAMES=y
> CONFIG_HOTPLUG=y
> CONFIG_NET=y
> CONFIG_SYSVIPC=y
> CONFIG_SYSCTL=y
> CONFIG_KCORE_ELF=y
> CONFIG_BINFMT_ELF=y
> CONFIG_BINFMT_SOM=y
> CONFIG_PARPORT=y
> CONFIG_PARPORT_PC=y
> CONFIG_PARPORT_PC_CML1=y
> CONFIG_PARPORT_GSC=y
> CONFIG_BLK_DEV_LOOP=y
> CONFIG_BLK_DEV_RAM=y
> CONFIG_BLK_DEV_RAM_SIZE=4096
> CONFIG_BLK_DEV_INITRD=y
> CONFIG_MD=y
> CONFIG_BLK_DEV_MD=y
> CONFIG_MD_LINEAR=y
> CONFIG_MD_RAID0=y
> CONFIG_MD_RAID1=y
> CONFIG_MD_RAID5=y
> CONFIG_PACKET=y
> CONFIG_PACKET_MMAP=y
> CONFIG_NETLINK_DEV=y
> CONFIG_FILTER=y
> CONFIG_UNIX=y
> CONFIG_INET=y
> CONFIG_IP_MULTICAST=y
> CONFIG_IP_PNP=y
> CONFIG_IP_PNP_DHCP=y
> CONFIG_SCSI=y
> CONFIG_BLK_DEV_SD=y
> CONFIG_SD_EXTRA_DEVS=40
> CONFIG_CHR_DEV_ST=y
> CONFIG_BLK_DEV_SR=y
> CONFIG_SR_EXTRA_DEVS=2
> CONFIG_CHR_DEV_SG=y
> CONFIG_SCSI_LASI700=y
> CONFIG_53C700_MEM_MAPPED=y
> CONFIG_53C700_LE_ON_BE=y
> CONFIG_53C700_USE_CONSISTENT=y
> CONFIG_SCSI_ZALON=y
> CONFIG_ASK_ZALON=y
> CONFIG_SCSI_SYM53C8XX=y
> CONFIG_ASK_SYM53C8XX=y
> CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
> CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
> CONFIG_SCSI_NCR53C8XX_SYNC=20
> CONFIG_NETDEVICES=y
> CONFIG_NET_ETHERNET=y
> CONFIG_LASI_82596=y
> CONFIG_NET_PCI=y
> CONFIG_TULIP=y
> CONFIG_VT=y
> CONFIG_VT_CONSOLE=y
> CONFIG_GSC_PS2=y
> CONFIG_SERIAL=y
> CONFIG_SERIAL_CONSOLE=y
> CONFIG_SERIAL_GSC=y
> CONFIG_EXT3_FS=y
> CONFIG_JBD=y
> CONFIG_RAMFS=y
> CONFIG_ISO9660_FS=y
> CONFIG_JOLIET=y
> CONFIG_PROC_FS=y
> CONFIG_DEVPTS_FS=y
> CONFIG_EXT2_FS=y
> CONFIG_NFS_FS=y
> CONFIG_NFS_V3=y
> CONFIG_ROOT_NFS=y
> CONFIG_NFSD=y
> CONFIG_NFSD_V3=y
> CONFIG_SUNRPC=y
> CONFIG_LOCKD=y
> CONFIG_LOCKD_V4=y
> CONFIG_MSDOS_PARTITION=y
> CONFIG_NLS=y
> CONFIG_NLS_DEFAULT="iso8859-1"
> CONFIG_FB=y
> CONFIG_DUMMY_CONSOLE=y
> CONFIG_FB_STI=y
> CONFIG_FBCON_CFB8=y
> CONFIG_FBCON_CFB32=y
> CONFIG_FBCON_STI=y
> CONFIG_FONT_8x8=y
> CONFIG_FONT_8x16=y
> CONFIG_STI_CONSOLE=y
> CONFIG_DUMMY_CONSOLE=y
> CONFIG_DUMMY_CONSOLE=y
> CONFIG_FBCON=y
> CONFIG_FBCON_FONT=y
> CONFIG_FONT_8x8=y
> CONFIG_FONT_8x16=y
> CONFIG_FONT_6x11=y
> CONFIG_FONT_SUN12x22=y
> CONFIG_SOUND=y
> CONFIG_SOUND_HARMONY=y
> CONFIG_MAGIC_SYSRQ=y
> 
> ---
> ---
> 
> And when running xconfig and trying to save the config I get
> 
> ---
> 
> Stack Trace for Error
> 
> zcan't read "CONFIG_MTD": no such variable
>     while executing
> "list $CONFIG_MTD"
>     (procedure "writeconfig" line 1992)
>     invoked from within
> "writeconfig .config include/linux/autoconf.h"
>     invoked from within
> ".f0.right.save invoke"
>     ("uplevel" body line 1)
>     invoked from within
> "uplevel #0 [list $w invoke]"
>     (procedure "tkButtonUp" line 7)
>     invoked from within
> "tkButtonUp .f0.right.save
> "
>     (command bound to event)
> 
> ---
> ---
> 
> When runing make config I get
> 
> ---
> 
>   Stallion multiport serial support (CONFIG_STALDRV) [N/y/?] 
>   PDC software console support (CONFIG_PDC_CONSOLE) [Y/n/?] 
> scripts/Configure: drivers/char/Config.in: line 121: syntax error near
> unexpected token `fi'
> scripts/Configure: drivers/char/Config.in: line 121: `fi'
> *
> HIL support
> *
> *
> * Input support needed for HIL support
> *
> *
> * Multimedia devices
> *
> Video For Linux (CONFIG_VIDEO_DEV) [N/y/m/?] 
> 
> and it continues ok and seems to save a complete .config
> 
> ---
> ---
> 
> make palo
> gives 
> 
> ---
> 
> make[1]: Leaving directory `/usr/src/source/linux/arch/parisc/tools'
> make CFLAGS="-D__KERNEL__ -I/usr/src/source/linux/include -Wall
> -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
> -fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce
> -mno-space-regs -mfast-indirect-calls -mdisable-fpregs
> -ffunction-sections -march=2.0 -mschedule=8000 " -C  arch/parisc/kernel
> make[1]: Entering directory `/usr/src/source/linux/arch/parisc/kernel'
> hppa64-linux-gcc -D__KERNEL__ -I/usr/src/source/linux/include -Wall
> -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
> -fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce
> -mno-space-regs -mfast-indirect-calls -mdisable-fpregs
> -ffunction-sections -march=2.0 -mschedule=8000   -nostdinc -I
> /opt/palinux/lib/gcc-lib/hppa64-linux/3.0.3/include
> -DKBUILD_BASENAME=cache  -c -o cache.o cache.c
> hppa64-linux-gcc -D__ASSEMBLY__ -traditional -D__KERNEL__
> -I/usr/src/source/linux/include  -c -o pacache.o pacache.S
> hppa64-linux-gcc -D__KERNEL__ -I/usr/src/source/linux/include -Wall
> -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
> -fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce
> -mno-space-regs -mfast-indirect-calls -mdisable-fpregs
> -ffunction-sections -march=2.0 -mschedule=8000   -nostdinc -I
> /opt/palinux/lib/gcc-lib/hppa64-linux/3.0.3/include
> -DKBUILD_BASENAME=setup  -c -o setup.o setup.c
> hppa64-linux-gcc -D__KERNEL__ -I/usr/src/source/linux/include -Wall
> -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
> -fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce
> -mno-space-regs -mfast-indirect-calls -mdisable-fpregs
> -ffunction-sections -march=2.0 -mschedule=8000   -nostdinc -I
> /opt/palinux/lib/gcc-lib/hppa64-linux/3.0.3/include
> -DKBUILD_BASENAME=traps  -c -o traps.o traps.c
> traps.c:41:55: kdb/break.h: No such file or directory
> traps.c:42:47: kdb/kgdb_types.h: No such file or directory
> traps.c:43:60: kdb/save_state.h: No such file or directory
> traps.c:44:76: kdb/kgdb_machine.h: No such file or directory
> traps.c:45:53: kdb/trap.h: No such file or directory
> traps.c: In function `handle_break':
> traps.c:264: storage size of `ssp' isn't known
> traps.c:289: `KGDB_BREAK_INSN' undeclared (first use in this function)
> traps.c:289: (Each undeclared identifier is reported only once
> traps.c:289: for each function it appears in.)
> traps.c:291: warning: implicit declaration of function `pt_regs_to_ssp'
> traps.c:292: warning: implicit declaration of function `kgdb_trap'
> traps.c:292: `I_BRK_INST' undeclared (first use in this function)
> traps.c:293: warning: implicit declaration of function `ssp_to_pt_regs'
> traps.c:296: `KGDB_INIT_BREAK_INSN' undeclared (first use in this
> function)
> traps.c:264: warning: unused variable `ssp'
> traps.c: In function `handle_interruption':
> traps.c:474: storage size of `ssp' isn't known
> traps.c:614: `I_TAKEN_BR' undeclared (first use in this function)
> traps.c:474: warning: unused variable `ssp'
> make[1]: *** [traps.o] Error 1
> make[1]: Leaving directory `/usr/src/source/linux/arch/parisc/kernel'
> make: *** [_dir_arch/parisc/kernel] Error 2
> rotapile:/usr/src/source/linux# make palo
> 
> ---
> 
> Robert Stanford
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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Hey all,

Basically I have an AutoRAID Model 12 (not a 12H) that I want to use on
my newly installed C180 (finally got it workin). Being an HP-UX man I
was wondering how Debian handles alternate (pv) links?  I'm curious
because the AutoRAID has 2 controllers (only one active at a time) and
I have 2 F/W controller cards installed in the C180 besides the onboard
F/W controller.  I'm just starting to figure out some of the
differences in the file system structure from HP-UX and Linux.  I did
d/l some info from "The Linux Cookbook," but I still have questions. 
Normally on my HP-UX side I would hook up the AutoRAID, do an ioscan
-f, insf -e, and proceed to pvcreate/vgcreate/lvcreate, etc.  Since
there is no ioscan in Linux, how can you do a physical scan of the
hardware? Any hardware diagnostics?  Or if anyone can point me to some
other online resources that might be helpful, that would be great too. 
Thanks....

derek (lost in the Linux world)



P.S. If I start to get annoying with the basic questions about Linux,
you can blame HP for spoon feeding all of us hardware techs. ;)  I'm
just interested in furthering my knowledge of Linux since I don't
really get to fool around with HP-UX since most of the boxes I'm
working on are in a production environment.

__________________________________________________
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Hi there!

I want to install a CD-Drive in my 715/100. Is it possible to use the 
internal audio output of the CD-ROM in the same way it used in a PC? 
Which type of cable do I have to use?

TIA, Rdiger




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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] CD-ROM Audio Output
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To: =?ISO-8859-1?Q?R=FCdiger_Scholz?= <rscholz@hrzpub.tu-darmstadt.de>
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=?ISO-8859-1?Q?R=FCdiger_Scholz?= writes...

> I want to install a CD-Drive in my 715/100. Is it possible to use the 
> internal audio output of the CD-ROM in the same way it used in a PC? 
> Which type of cable do I have to use?

The problem is where to connect it. There's no way to plug it in to the
built-in audio. One alternative might be to use an EISA or ISA soundcard
that has the right connector for a cdrom cable, but I'm not sure if
anyone's tried that yet. If anyone does, please post notes to the list.

If you want to listen to audio cd's you could just plug directly into the
cdrom output and then control the drive via scsi. That's what I used to
do with hpux and I don't see any reason why it shouldn't work. But then
you don't get the mixing with other sources that the sound card provides.

-- 
Matt Taggart
taggart@fc.hp.com


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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] HP9000/L2000 + FC60 Fiber Support
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Matthew Wilcox wrote:
> On Tue, Aug 13, 2002 at 02:23:49PM +0100, Antnio Ribeiro wrote:
> >     Fibre Channel: PCI device 103c:1028 (Hewlett-Packard Company) (rev 11).
> 
> according to the latest pci.ids, this is:
> Tach TL Fibre Channel Host Adapter

http://lists.parisc-linux.org/pipermail/parisc-linux/2002-August/017288.html

grant


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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Derek Engelhaupt wrote:
> Being an HP-UX man I was wondering how Debian handles alternate (pv) links?

YMMV. The dual controller FC10 confused the shit out of the
Emulex lpfc driver. lpfc just doesn't know the FC10 might take
5-10 (or more)  seconds to reassign LUNs from one controller
to the other.  I don't expect much better from the SCSI stack
but it will depend on the interface driver.

...
> Normally on my HP-UX side I would hook up the AutoRAID, do an ioscan
> -f, insf -e, and proceed to pvcreate/vgcreate/lvcreate, etc.  Since
> there is no ioscan in Linux, how can you do a physical scan of the
> hardware?

At boot time, such a scan takes place.
You can look in /proc/scsi/scsi to see which SCSI devices have
been discovered.

> Any hardware diagnostics?  Or if anyone can point me to some
> other online resources that might be helpful, that would be great too. 
> Thanks....

See Debian scsitools and scsiadd packages.
Also learn about mounting file systems by label rather than
by device name

grant


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Subject: Re: [parisc-linux] CD-ROM Audio Output
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That's bad. Cause my my 715 has no EISA/ISA-Slot. When I opened the 
machine, I recognized a 3-Pin-Connector (labeled J19) near the hinges 
and the power connector. So I thought this could be an audio connector...
Well, so let's do it the other way...

By the way: is it possible to get some documentation for my machine?

Matt Taggart wrote:

>The problem is where to connect it. There's no way to plug it in to the
>built-in audio. One alternative might be to use an EISA or ISA soundcard
>that has the right connector for a cdrom cable, but I'm not sure if
>anyone's tried that yet. If anyone does, please post notes to the list.
>
>If you want to listen to audio cd's you could just plug directly into the
>cdrom output and then control the drive via scsi. That's what I used to
>do with hpux and I don't see any reason why it shouldn't work. But then
>you don't get the mixing with other sources that the sound card provides.
>
>  
>





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On Thu, Aug 15, 2002 at 10:22:29AM +0200, R?diger Scholz wrote:
> That's bad. Cause my my 715 has no EISA/ISA-Slot. When I opened the 
> machine, I recognized a 3-Pin-Connector (labeled J19) near the hinges 
> and the power connector. So I thought this could be an audio connector...
> Well, so let's do it the other way...
> 
> By the way: is it possible to get some documentation for my machine?
> 

The 715 should have a expansion board with an EISA connector.

You can find the service doc at:
http://h20000.www2.hp.com/bc/docs/support/SupportManual/lpv37699/lpv37699.pdf

c.


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From: E Frank Ball <frankb@efball.com>
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Subject: Re: [parisc-linux] CD-ROM Audio Output
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On Thu, Aug 15, 2002 at 08:54:45AM -0400, Carlos O'Donell wrote:
} On Thu, Aug 15, 2002 at 10:22:29AM +0200, R?diger Scholz wrote:
} > That's bad. Cause my my 715 has no EISA/ISA-Slot. When I opened the 
} > machine, I recognized a 3-Pin-Connector (labeled J19) near the hinges 
} > and the power connector. So I thought this could be an audio connector...
} > Well, so let's do it the other way...
} 
} The 715 should have a expansion board with an EISA connector.

Many of the 715s were sold without the EISA expansion board.

-- 

   E Frank Ball                frankb@efball.com


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On Mon, Aug 12, 2002 at 11:56:33AM -0700, Derek Engelhaupt wrote:
> Quick search of the parisc/linux yeilded:
>                  ---------------------------------
>                  \     o  o  3  o  o  o  7  8  9 /
>                   \  10 11 12 13  o  o 16 17 18 /
>                    \  19 20 21 22  o 24 25 26  /
>                      -------------------------
> 
>                12 13    20 19                 18  9  8  7  24
>        ---------------------------           -----------------
>   AUI   \ o  o  6  5  o  3  2  o /           \ 1  2  3  4  5 / RS232
>          \  o 10 11 12  o 14 15 /             \  6  7  8  9 /
>           ---------------------                ------------
>               22 21  3    11 10                 26 25 17 16

I believe that diagram is wrong; note how the numbering on the AUI
connector is shown as going right to left on the top row, and left to
right on the bottow row.  D-type connectors are normally numbered in the
same direction on all rows, as the other two in the above are numbered.
Anyway, I reversed the bottom row of the AUI diagram, built a cable, and
it worked.  My notes are below.

Many thanks to Matt for the original info anyway, without that I'd have
been stuck.

Richard



Pinout for RS232/AUI cable(A2263-62045) for 712 card (A2263-66536)
------------------------------------------------------------------
There is a card for the 712(HP part #A2263-66536) that provides 2nd AUI lan
and 2nd DB9 RS232 port. The back of the card has a 26 pin connector and the
15pin AUI and 9pin RS232 connectors are provided by a special Y cable
(A2263-62045) which are pretty hard to find. Here is the pinout of this cable
in case you need to make one.

These diagrams are looking at the end of the connector not the back. Make
sure to take that into account if building a cable. Pin numbering is taken
from the numbers on the plastic in the cable. If a pin is not connected it
is represented as an "o". The numbers outside the bottom connectors are the
pin numbers that that pin is connected to on the top connector.

<pre>

                 ---------------------------------
                 \   .o .o .3 .o .o .o .7 .8 .9  /
                  \ 10 11 12 13 .o .o 16 17 18 /
                   \ 19 20 21 22 .o 24 25 26  /
                     -------------------------

                12 13    20 19         18  9  8  7 24
        ---------------------------  -----------------
  AUI   \ .o .o .6 .5 .o .3 .2 .o /  \ .1 .2 .3 .4 .5 / RS232
         \ .o 14 13 12 .o 10 .9 /     \ .6 .7 .8 .9  /
          ---------------------         ------------
              22 21  3    11 10         26 25 17 16 

26 way		15 way		26 way		9 way

3	white	12		7	black	4
10	yellow	9		8	brown	3
11	blue	10		9	purple	2
12	black	6		16	yellow	9
13	brown	5		17	red	8
19	grey	2		18	green	1
20	red	3		24	grey	5
21	pink	13		25	liblue	7
22	green	14		26	pink	6

</pre>



From - Thu Nov 08 21:24:09 2018
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From: Jochen Friedrich <jochen@scram.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] unreliable mmap on 720
Date: Thu, 15 Aug 2002 23:49:24 +0200 (CEST)
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Xref: news.gmane.org gmane.linux.ports.parisc:15823

Hi,

i recognized that mmap operations seem unreliable on HP720 platform. The 
following test program (taken from cyrus imap configure) demonstrates the 
problem:

#include <sys/types.h>
#include <sys/mman.h>
#include <fcntl.h>

main()
{
  char *base;
  int fd = open("testmmap", O_RDWR|O_CREAT|O_TRUNC, 0666);

  if (fd == -1)
  {
    printf("can't open testmmap\n");
    exit(1);
  }
  if (write(fd, "test", 4) != 4)
  {
    printf("can't write testmmap\n");
    exit(1);
  }
  fsync(fd);
  base = mmap((caddr_t)0, 100, PROT_READ, MAP_SHARED
#ifdef MAP_FILE
  | MAP_FILE
#endif
#ifdef MAP_VARIABLE
  | MAP_VARIABLE
#endif
  , fd, 0L);

  if (base == (caddr_t)-1)
  {
    printf("can't mmap testmmap\n");
    exit(1);
  }
  if (strncmp(base, "test", 4) != 0)
  {
    printf("memory not test\n");
    exit(1);
  }
  if (write(fd, "test", 4) != 4) 
  {
    printf("can't append testmmap\n");
    exit(1);
  }
  fsync(fd);
  if (strncmp(base+4, "test", 4) != 0)
  {
    printf("memory not testtest: %s\n", base);
    exit(1);
  }
  exit(0);
}

# ./testmmap
memory not testtest: test
# ./testmmap
# ./testmmap
# ./testmmap
# ./testmmap
# ./testmmap
# ./testmmap
# ./testmmap
# ./testmmap
# ./testmmap
# ./testmmap
memory not testtest: testtest

This only seems to happen on 720 (i couldn't replicate the bug on a 715 
with the same kernel booted up). Things seem to get worse if the load on 
the box rises (if the test is done on an idle machine, testmmap works 
without problems). Weird...

This is 2.4.19-pa3.

Cheers,
--jochen



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Subject: [parisc-linux] db3 patch for Linux/HPPA
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To: Matthew Wilcox <willy@debian.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:15824

Hi Matthew,

this fixes a problem with db3 mutexes. Problem is in 
__db_tas_mutex_init(). If MUTEX_INIT returns non-zero value, mutexp->spins 
doesn't get initialized and later __db_tas_mutex_lock loops without ever 
trying to aquire the lock (as spins is zero).

diff -urN db-3.2.9/include/mutex.h db-3.2.9.new/include/mutex.h
--- db-3.2.9/include/mutex.h    Sun Jun 23 16:34:28 2002
+++ db-3.2.9.new/include/mutex.h        Sun Jun 23 16:33:38 2002
@@ -413,7 +413,7 @@
        __r & 1;                                                        \
 })

-#define        MUTEX_UNSET(tsl)        (*(tsl) = -1)
+#define        MUTEX_UNSET(tsl)        (!(*(tsl) = -1))
 #define        MUTEX_INIT(tsl)         MUTEX_UNSET(tsl)
 #endif
 #endif

Cheers,
--jochen



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From: Nikolay Semenov <nsem@cce.ru>
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Subject: [parisc-linux] 10-pin modular jack on 75/100 and a mouse in X
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Xref: news.gmane.org gmane.linux.ports.parisc:15825

Hi there,

I've install Woody on 75/100 workstation with 10-pin modular jack for 
keyboard and mouse connection and cannot get the mouse working in X.
Can someone tell me how to configure X to get it working?

  (i) if I try /dev/input/mice -- device cannot be open.
  (ii) if I try /dev/psaux -- device be opened but the mouse not working.

Keyboard is working all the time.

Thanks in advance,

Nikolay 



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Subject: [parisc-linux] Voodoo3 PCI on C200 experiment pending!
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Xref: news.gmane.org gmane.linux.ports.parisc:15826

I just scarfed up a somewhat used Voodoo3 PCI graphics
card from Ebay and intend to try it out with Debian/HPPA
and a custom built kernel.

I hope to compile a tdfx.o drm module and get the card
recognized via a PALO boot command. I will use a dumb
terminal for the system console during initial booting.

Any hints or tips would be appreciated :-)



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Xref: news.gmane.org gmane.linux.ports.parisc:15827

> I just scarfed up a somewhat used Voodoo3 PCI graphics
> card from Ebay and intend to try it out with Debian/HPPA
> and a custom built kernel.
> 
> I hope to compile a tdfx.o drm module and get the card
> recognized via a PALO boot command. I will use a dumb
> terminal for the system console during initial booting.
> 
> Any hints or tips would be appreciated :-)
> 

Stop trying to use the card as your console :)

Stick with a serial console for startup and then launch X
from that console.

It's my dream to get a Radeon 7000 PCI running on a C3K, 
but that will have to wait until September. I'm very interested
in this test... since I'm a burgeoning DRI/DRM developer :)

If you have any problems please post to:

dri-devel@lists.sourceforge.net 

or visit

#dri-devel on irc.openprojects.net

Good luck!

c.


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From: "B. Douglas Hilton" <bdhilton@charter.net>
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Subject: [parisc-linux] PCI Intel EtherExpressPro100 strangeness on C200 machine.
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Hello list. For some reason my onboard LAN devices
all mysteriously died and disappeared from the
firmware, so I purchased an eepro100 card to try
and get some networking connectivity back.

When I modprobe eepro100 it seems to be ok. I can
do an 'ifup -a' and then ifconfig lists my eth0
and it appears to be configured properly. I can
ping other servers in my LAN, and I can do an
ftp login, but as soon a I type "ls" it goes out
to lunch and locks up.

Likewise I can ping numeric ip's on the internet,
but name resolution is not working.

Could this be an endianness problem? Any ideas?

Any tips on how to reactivate the onboard ether
devices would be greatly appreciated too.




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Subject: [parisc-linux] subo -> overflow_trap (12) -> What to do?
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pa,

Talking with Christophe Rhodes who is porting some Common Lisp code[1]
to parisc-linux and he has some old-ish code from HPUX (circa 1994)
that does some interesting things :)

The code does a 'subo' and it _does_ cause an overflow_trap (12) which is
currently unhandled in our traps.c ... this trickles into a SIGBUS, which
is questionable (as the comment notes).

In HPUX the code sets si_code to FPE_INTOVF as well as sending a SIGFPE
to the offending application. From there the handler does all the 'bignum'
cleanup and Lisp land is all happy.

So I've gone ahead and implemented this functionality into traps.c, but
I'm not sure if this is the right way to go. What do people think?
If any HPUX people would like to chime in? :)

Patch attached.

c.

[1] Package is 'sbcl'


--pWyiEgJYm5f9v55/
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="kernel-parisc-trap.c.diff"

--- linux/arch/parisc/kernel/traps.c.orig       2002-08-17 17:37:26.000000000 -0400
+++ linux/arch/parisc/kernel/traps.c    2002-08-17 17:58:39.000000000 -0400
@@ -561,6 +561,14 @@
                force_sig_info(SIGILL, &si, current);
                return;

+       case 12:
+               /* Overflow Trap, let the userland signal handler do the cleanup */
+               si.si_signo = SIGFPE;
+               si.si_code = FPE_INTOVF;
+               si.si_addr = (void *) regs->iaoq[0];
+               force_sig_info(SIGFPE, &si, current);
+               return;
+
        case 14:
                /* Assist Exception Trap, i.e. floating point exception. */
                die_if_kernel("Floating point exception", regs, 0); /* quiet */


--pWyiEgJYm5f9v55/--


From - Thu Nov 08 21:24:09 2018
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From: Andreas Seltenreich <s_selten@informatik.uni-karlsruhe.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] PCI Intel EtherExpressPro100 strangeness on C200 machine.
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To: "B. Douglas Hilton" <bdhilton@charter.net>
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Hi,

just append " || defined(__hppa__)" to line 47 of drivers/net/eepro100.c
I got mine working that way.

Regards,
andreas

* B. Douglas Hilton <bdhilton@charter.net> [2002-08-17 22:32]:
> Hello list. For some reason my onboard LAN devices
> all mysteriously died and disappeared from the
> firmware, so I purchased an eepro100 card to try
> and get some networking connectivity back.
> 
> When I modprobe eepro100 it seems to be ok. I can
> do an 'ifup -a' and then ifconfig lists my eth0
> and it appears to be configured properly. I can
> ping other servers in my LAN, and I can do an
> ftp login, but as soon a I type "ls" it goes out
> to lunch and locks up.
> 
> Likewise I can ping numeric ip's on the internet,
> but name resolution is not working.
> 
> Could this be an endianness problem? Any ideas?
> 
> Any tips on how to reactivate the onboard ether
> devices would be greatly appreciated too.

--AqsLC8rIMeq19msA
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=diff

--- linux/drivers/net/eepro100.c	Mon Aug  5 02:12:20 2002
+++ linux/drivers/net/eepro100.c	Sun Aug 18 00:15:55 2002
@@ -44,7 +44,7 @@
 /* Set the copy breakpoint for the copy-only-tiny-buffer Rx method.
    Lower values use more memory, but are faster. */
 #if defined(__alpha__) || defined(__sparc__) || defined(__mips__) || \
-    defined(__arm__)
+    defined(__arm__) || defined(__hppa__)
 static int rx_copybreak = 1518;
 #else
 static int rx_copybreak = 200;

--AqsLC8rIMeq19msA--


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From: "B. Douglas Hilton" <bdhilton@charter.net>
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Subject: Re: [parisc-linux] PCI Intel EtherExpressPro100 strangeness on C200
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I tried your suggestions and built a new kernel, but
it still behaves as it did prior to the modification.


To summarize (with eepro100 in PCI slot ):

  - can ping using a dotted quad
  - cannot ping using dns
  - can ftp login to another machine on my LAN
  - when I try to list files or download it locks up.

Onboard tulip and LASI ethernet devices seem to have died.

This is a major headache. I don't believe that the Debian 3.0
cdrom will boot on the C200, and without network I can't
upgrade the 0.9.3 cdrom. Its a catch-22!



Andreas Seltenreich wrote:
> Hi,
> 
> just append " || defined(__hppa__)" to line 47 of drivers/net/eepro100.c
> I got mine working that way.
> 
> Regards,
> andreas
> 
> * B. Douglas Hilton <bdhilton@charter.net> [2002-08-17 22:32]:
> 
>>Hello list. For some reason my onboard LAN devices
>>all mysteriously died and disappeared from the
>>firmware, so I purchased an eepro100 card to try
>>and get some networking connectivity back.
>>
>>When I modprobe eepro100 it seems to be ok. I can
>>do an 'ifup -a' and then ifconfig lists my eth0
>>and it appears to be configured properly. I can
>>ping other servers in my LAN, and I can do an
>>ftp login, but as soon a I type "ls" it goes out
>>to lunch and locks up.
>>
>>Likewise I can ping numeric ip's on the internet,
>>but name resolution is not working.
>>
>>Could this be an endianness problem? Any ideas?
>>
>>Any tips on how to reactivate the onboard ether
>>devices would be greatly appreciated too.
>>




From - Thu Nov 08 21:24:09 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] PCI Intel EtherExpressPro100 strangeness on C200 machine.
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* B. Douglas Hilton <bdhilton@charter.net> [2002-08-18 04:01]:
> I tried your suggestions and built a new kernel, but
> it still behaves as it did prior to the modification.

Just to be sure, you did rebuild the eepro100 module too?

I'm using the nic for hours now and it is working perfectly.

> To summarize (with eepro100 in PCI slot ):
> 
>  - can ping using a dotted quad
>  - cannot ping using dns
>  - can ftp login to another machine on my LAN
>  - when I try to list files or download it locks up.

With the original module (2.4.19-pa2) I wasn't able to receive ip packets
larger than approx 150 bytes. For example a ping -s 100  went through
while ping -s 200 didn't. 

> This is a major headache. I don't believe that the Debian 3.0
> cdrom will boot on the C200, and without network I can't
> upgrade the 0.9.3 cdrom. Its a catch-22!

Btw. the diff was from 2.4.19-pa2. Maybe there have been other changes
if you are using an older kernel.

The address of the maintainer Andrey V. Savochkin <saw@saw.sw.com.sg>
seems to be broken. So no help from there.

regards
andreas


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Yes I made a monolithic kernel, so it rebuilt eepro100.c

Prior, I was using a stock Debian vmlinux-2.4.18-32 kernel
so there is a good chance that the Debian packager had made
the same modification to the source.



Andreas Seltenreich wrote:
> * B. Douglas Hilton <bdhilton@charter.net> [2002-08-18 04:01]:
> 
>>I tried your suggestions and built a new kernel, but
>>it still behaves as it did prior to the modification.
> 
> 
> Just to be sure, you did rebuild the eepro100 module too?
> 
> I'm using the nic for hours now and it is working perfectly.
> 

Hmmm....

> 
>>To summarize (with eepro100 in PCI slot ):
>>
>> - can ping using a dotted quad
>> - cannot ping using dns
>> - can ftp login to another machine on my LAN
>> - when I try to list files or download it locks up.
> 
> 
> With the original module (2.4.19-pa2) I wasn't able to receive ip packets
> larger than approx 150 bytes. For example a ping -s 100  went through
> while ping -s 200 didn't. 
> 
> 
>>This is a major headache. I don't believe that the Debian 3.0
>>cdrom will boot on the C200, and without network I can't
>>upgrade the 0.9.3 cdrom. Its a catch-22!
> 
> 
> Btw. the diff was from 2.4.19-pa2. Maybe there have been other changes
> if you are using an older kernel.
> 

I guess I will try that one then. Thanks.

> The address of the maintainer Andrey V. Savochkin <saw@saw.sw.com.sg>
> seems to be broken. So no help from there.
> 
> regards
> andreas
> 





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On Sat, 17 Aug 2002, B. Douglas Hilton wrote:

> I just scarfed up a somewhat used Voodoo3 PCI graphics
> card from Ebay and intend to try it out with Debian/HPPA
> and a custom built kernel.
>
> I hope to compile a tdfx.o drm module and get the card
> recognized via a PALO boot command. I will use a dumb
> terminal for the system console during initial booting.

I think I have to disappoint you. I doesn't work for me :-(

I did exactly the same thing, I got a Voodoo 3 3000 from ebay and put it
into my C240 (it's very similar to the C200 series).
I tried both 32bit and 64bit PCI slots, but XFree86's Voodoo driver
seems to have some problems with 64bit PCI (at least some guru from
the p-l mailing list suggested this after reading my XFree86 logs).

But unfortunately sticking the Voodoo into a 32bit PCI slot doesn't get
much further: starting XFree86 will cause a HPMC shortly after a message
like "Lasi: barking without apparent reason" (obviously from gsc/lasi.c).
This is just before it is about to initialize the Voodoo3 (with the
Intel emulator in XFree86). At least the messages printed on the console
seem to be like the last messages XFree86 usually prints out just before
activating the graphics card on other platforms.

Finally I even took out the (not yet supported) HP Visualize-FX2 card
(64bit slot), just to get sure that there were no conflict with other PCI
hardware. I'm using (or should I say: I have to use) the serial console
anyway.

BTW, of course you must not compile the Voodoo FrameBuffer device, and
I don't use the DRI driver either (just to be sure); just use XFree86
driver.

I recently found a message on the debian-alpha mailing list (this month)
were some tried to get a Voodoo3 running on a AlphaStation. He succeeded
by adding 'Option "NoINT10"' to XF86Config, but this didn't work for me.
This would have been very surprising, since Alpha and HPPA are totally
different architectures anyway, but who knows ...

My last attempt was with 2.4.19-pa2; still the same error.

greetings max




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On Sun, 18 Aug 2002, M. Grabert wrote:

> On Sat, 17 Aug 2002, B. Douglas Hilton wrote:
>
> > I just scarfed up a somewhat used Voodoo3 PCI graphics
> > card from Ebay and intend to try it out with Debian/HPPA
> > and a custom built kernel.

[...]

> I think I have to disappoint you. I doesn't work for me :-(

[...]

> But unfortunately sticking the Voodoo into a 32bit PCI slot doesn't get
> much further: starting XFree86 will cause a HPMC shortly after a message
> like "Lasi: barking without apparent reason" (obviously from gsc/lasi.c).
> This is just before it is about to initialize the Voodoo3 (with the
> Intel emulator in XFree86). At least the messages printed on the console
> seem to be like the last messages XFree86 usually prints out just before
> activating the graphics card on other platforms.

Does anybody can give me some hints what to do to debug this issue?
I'm not a kernel hacker, and I don't have any knowledge about PA-RISC
linux internals and PA-RISC assembler programming (but I hope I'll improve
this situation in the future ;)

However I know C quite well (and debugging, stack manipulation, reverse
engineering), and I used it not only as a hobby.

Can anybody give me some hints how I should compile the kernel (-g), how
and if I should use the kernel debugger and recompile X with debugging
symbols in order to get some more interesting information about how and
why it Voodoo/X fails on PA-RISC linux? I'm sure will not be able to fix
the problem, but I probably can feed you with some information that will
help you to locate and solve the problem.
At least this is an interesting/annoying bug for two people (probably
more) and we could investigate it a little bit more while you don't have
to waste too much time on this issue yourself.

greetings max



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"B. Douglas Hilton" wrote:
> Any hints or tips would be appreciated :-)

Search the mail archives.
Once upon a time (2 years ago?), Alan Cox explained his ideas
on how to make something like this work. He had an A180 in front
of him at the time...

grant


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"M. Grabert" wrote:
> I recently found a message on the debian-alpha mailing list (this month)
> were some tried to get a Voodoo3 running on a AlphaStation. He succeeded
> by adding 'Option "NoINT10"' to XF86Config, but this didn't work for me.
> This would have been very surprising, since Alpha and HPPA are totally
> different architectures anyway, but who knows ...

The biggest difference between Alpha and parisc is Alpha has weakly ordered
memory. Reminds me of the saying: "My enemy's enemy is my friend"

BTW, ia64 on HP ZX1 doesn't like int10 either.

grant


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Subject: Re: [parisc-linux] Hints to debug, was: Voodoo3 PCI on C200 experiment pending!
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"M. Grabert" wrote:
> Does anybody can give me some hints what to do to debug this issue?

Here's a start.

You want to get the HPMC state from firmware. interrupt the
boot process and type "ser pim" at the firmware prompt.
You want to look at gr02 (return pointer) and IOAQ (aka offset, IP).
IOAQ points at the instruction that tripped the HPMC handling.
It wasn't necessarily the cause. Look up the symbol in the
System.map with "buildtools/a.c" (another CVS repository on
cvs.parisc-linux.org).

IOAQ might point to user space if X11 server is involved.
We'll have to look at PSW bits and/or Space registers to determine that.

grant


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Andreas Seltenreich wrote:
> just append " || defined(__hppa__)" to line 47 of drivers/net/eepro100.c
> I got mine working that way.

The RX_ALIGN shouldn't strictly be needed. It's a performance improvement.
It means the misaligned access handling isn't working right. And should be
spewing something to the kernel dmesg buf. IIRC, Randolph Chung has done a
great job on getting most of the misaligned access emulation working right.
If you get console/dmesg output when using eepro100, please post it here.

If someone with CVS access has time, please enable the RX_ALIGN
code for __hppa__ as well. I have other changes outstanding (cpqfc)
that I want to finished up and committed first.

grant


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      LinuxWorld China 2002ֻ뺯ѣ 


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Voodoo3 PCI on C200 experiment pending!
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On Sun, 2002-08-18 at 05:46, Grant Grundler wrote:
> "B. Douglas Hilton" wrote:
> > Any hints or tips would be appreciated :-)
> 
> Search the mail archives.
> Once upon a time (2 years ago?), Alan Cox explained his ideas
> on how to make something like this work. He had an A180 in front
> of him at the time...

I really doubt you will get a Voodoo3 to work this way. XFree have lots
of problems with the Voodoo3 INT10 multihead even on x86 - the ROM seems
to do some quite tricky stuff.

On the other hand a Voodoo2 should work wonderfully because its got no
ROM, doesn't appear to be a video card and Glide2 has full source for
bringing the board up.

XFree86 also supports using it as a 2D device, but not currently (alas
8)) DRI and Xv also. 



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      LinuxWorld China 2002ֻ뺯ѣ 


    LinuxWorld Chinaչޣ޹˾죬õżҵȨȫ֧֡

LinuxWorld ChinaּڴٽϢ̡רҵʿҵûLinuxӦá񼰹ĽӦгľ޴ǱƶLinuxϵͳLinuxƽ̨ĸӦĿԼڹ񾭼øڵĹ㷺ʹãƽҵϢ衣

ƣLinuxWorld China 2002

ʱ/ص㣺200293գ   йƵ
200295գ Ϻ  ʹ󶼴󷹵

⣺ ʵҵLinuxӦ

ʽ ֻ+Ʒչʾ

ֻ᣺ Ϊݽ۴ᡢרҵ󲿷֣ۼ50ೡ漰ɹѵȸ档

Ʒչʾ չʾҵµӲƷֱû̡רҵȽЧͨ

ѯ绰(010)83152644-127

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--= Multipart Boundary 0818022310--


From - Thu Nov 08 21:24:11 2018
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From: "B. Douglas Hilton" <bdhilton@charter.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] PCI Intel EtherExpressPro100 strangeness on C200
 machine.
Date: Sun, 18 Aug 2002 11:55:11 -0400
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Here is my dmesg output that your requested, and my
ifconfig status right after booting. I typed this in
by hand, hopefully no typos.


eepro100.c:v1.09j-t 9/29/99 Donald Becker http://www.scyld.com/network/eepro100.html
eepro100.c: $Revision: 1.36 $ 2000/11/17 Modified by Andrey V. Savochkin <saw@saw.sw.com.sg> and others
eth0: Intel Corp. 82557 [Ethernet Pro 100], 00:90:27:60:CB:E6, IRQ 130.
   Board assembly 721383-006, Physical connectors present: RJ45
   Primary interface chip i82555 PHY #1.
   General self-test: passed.
   Serial sub-system self-test: passed.
   Internal registers self-test: passed.
   ROM checksum self-test: passed (0x8b51f404).


eth0    Link encap:Ethernet  HWaddr:00:90:27:60:CB:E6
         inet addr:192.168.100.115  Bcast:192.168.100.255  Mask:255.255.255.0
         RX packets:25 errors:0 dropped:0 overruns:0 frame:0
         TX packets:9 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:100
         RX bytes:2668 (2.6 KiB)  TX bytes:558 (558.0 b)
         Interrupt:130 Base address:0xf000



Well, I'm heading out to camp. Back on Monday.

Cheers!
- Doug




Grant Grundler wrote:
> Andreas Seltenreich wrote:
> 
>>just append " || defined(__hppa__)" to line 47 of drivers/net/eepro100.c
>>I got mine working that way.
> 
> 
> The RX_ALIGN shouldn't strictly be needed. It's a performance improvement.
> It means the misaligned access handling isn't working right. And should be
> spewing something to the kernel dmesg buf. IIRC, Randolph Chung has done a
> great job on getting most of the misaligned access emulation working right.
> If you get console/dmesg output when using eepro100, please post it here.
> 
> If someone with CVS access has time, please enable the RX_ALIGN
> code for __hppa__ as well. I have other changes outstanding (cpqfc)
> that I want to finished up and committed first.
> 
> grant
> 





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Subject: Re: [parisc-linux] Voodoo3 PCI on C200 experiment pending!
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Xref: news.gmane.org gmane.linux.ports.parisc:15844

delurking briefly since i worked on these parts (v2 and banshee-v3
which are basically the same) during my tenure at 3dfx.

Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

> On Sun, 2002-08-18 at 05:46, Grant Grundler wrote:
> > "B. Douglas Hilton" wrote:
> > > Any hints or tips would be appreciated :-)
> > 
> > Search the mail archives.
> > Once upon a time (2 years ago?), Alan Cox explained his ideas
> > on how to make something like this work. He had an A180 in front
> > of him at the time...
> 
> I really doubt you will get a Voodoo3 to work this way. XFree have
> lots of problems with the Voodoo3 INT10 multihead even on x86 - the
> ROM seems to do some quite tricky stuff.

I'll check my old mail archives, but the part taht you really want is
just the timing tables in the rom. If you're looking at the code in
cinit.c it had bitrotted quite badly after the initial bring up. 

However, it used to be possible to change the device type multimedia
(rather than video) and do all the initcode stuff. There was a little
jumper on the cards themselves for this

> On the other hand a Voodoo2 should work wonderfully because its got
> no ROM, doesn't appear to be a video card and Glide2 has full source
> for bringing the board up.

yup, no 2d on voodoo2, but sort of lame just as a framebuffer device
(well, if you want to use the command transport bits)

\p
---
A professional politician is a professionally dishonorable man.  In
order to get anywhere near high office he has to make so many
compromises and submit to so many humiliations that he becomes
indistinguishable from a streetwalker. --- H. L. Mencken



From - Thu Nov 08 21:24:11 2018
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On Sun, 2002-08-18 at 17:53, d p chang wrote:
> yup, no 2d on voodoo2, but sort of lame just as a framebuffer device
> (well, if you want to use the command transport bits)

XFree86 supports it nicely as a 2D card nowdays. True its not exactly
accelerated but it works. I use a couple for debugging displays



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From: John Marvin <jsm@udlkern.fc.hp.com>
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Subject: [parisc-linux] CD-ROM audio output
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> > I want to install a CD-Drive in my 715/100. Is it possible to use the
> > internal audio output of the CD-ROM in the same way it used in a PC?
> > Which type of cable do I have to use?
>
> The problem is where to connect it. There's no way to plug it in to the
> built-in audio.

That is incorrect. Most, if not all parisc workstations with CD quality
audio have an internal connector for CD audio input. However, it is just
another buffered input to the line input, i.e. you can not separately
control the CD audio level and the line input level, since they are
essentially wired together to the same input on the CS4216 codec. The
exception is the newer workstations that use the AD1819 codec. That has
a separate CD audio input, and the CD input connector is wired to that,
rather than the line input. Of course, we don't have a driver for the
AD1819 yet.

The connector that was described in this discussion with regard to the 715
is indeed the CD audio input.

John Marvin
jsm@fc.hp.com


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From: "Peter Saisanas" <psaisanas@iprimus.com.au>
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Subject: [parisc-linux] HP C240 With Debian 3.0
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------=_NextPart_000_000B_01C247D7.7830CCC0
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Hi, I am having problems with the stability of Debian 3.0 (Woody) on my =
C240. basically i can boot up the CD fine and get to the installation of =
the Kernel and base config. However about 3 out of 5 times i get the =
infamous error,=20

"Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping =
resources" and the c240 locks up.=20
.
One thing i have noticed is that it seems to do this when there is heavy =
usage of the SCSI Bus (i.e installing linux from the CD). I did seach =
the message list for this problem previously but im not too sure if =
there was a solution, (I'm sure there is one).

But on rare occations i can at least install the base system and it =
works very nicely

I have 128MB of ram (Not that this is probably causing the problem). and =
the kernel that im running is the one that is on the Deb 3.0 CD (2.4.19 =
i believe)

What do i need to do to get the C240 stable and stop the machine =
crashing.
Keep up the great work.

Cheers
Peter Saisanas


------=_NextPart_000_000B_01C247D7.7830CCC0
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2600.0" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi, I am having problems with the =
stability of=20
Debian 3.0 (Woody) on my C240. basically i can boot up the CD fine and =
get to=20
the installation of the Kernel and base config. However about 3 out of=20
5&nbsp;times i get the infamous error, </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>"Kernel panic: ccio-dma.c: =
ccio_alloc_range() I/O=20
MMU is out of mapping resources" and the c240&nbsp;locks=20
up.&nbsp;<BR>.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>One thing i have noticed is that it =
seems to do=20
this when there is heavy usage of the SCSI Bus (i.e installing =
linux&nbsp;from=20
the CD). I did seach the message list for this problem previously but im =
not too=20
sure if there was a solution, (I'm sure there is one).</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>But on rare occations i can at least =
install the=20
base system and it works very nicely</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I have 128MB of ram (Not that this is =
probably=20
causing the problem). and the kernel that im running is the one that is =
on the=20
Deb 3.0 CD (2.4.19 i believe)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>What do i need to do to get the C240 =
stable and=20
stop the machine crashing.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Keep up the great work.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Cheers</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Peter Saisanas</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV></BODY></HTML>

------=_NextPart_000_000B_01C247D7.7830CCC0--



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] LTP Results - Should we be unhappy? :)
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pa,

On a whim, I was talking to Willy about porting cerberus to parisc
(which I did... just by taking out the cpu specific test :) and he
mentioned LTP. I had completely forgoten about LTP!

No work required, LTP compiled out of the package, and I began 
running the test on an A500 2.4.19-pa3 (non-smp 64-bit).

To my surprise we don't even make it through all the tests!

- File Locking - 
fcntl14 - Many failures
fcntl15 - Passes
fcntl16 - Processes get stuck in wait (when they obviously shouldn't).

To view the test results, including the point at which I signaled
the waiting processes.

http://www.baldric.uwo.ca/~carlos/LTP/ltp-run-2002-08-19.out

If anyone is bored, interested, looking for something to do on
a slow evening :)

c.


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: Re: [parisc-linux] CD-ROM audio output
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John Marvin writes...

> > > I want to install a CD-Drive in my 715/100. Is it possible to use the
> > > internal audio output of the CD-ROM in the same way it used in a PC?
> > > Which type of cable do I have to use?
> >
> > The problem is where to connect it. There's no way to plug it in to the
> > built-in audio.
> 
> That is incorrect. Most, if not all parisc workstations with CD quality
> audio have an internal connector for CD audio input. However, it is just
> another buffered input to the line input, i.e. you can not separately
> control the CD audio level and the line input level, since they are
> essentially wired together to the same input on the CS4216 codec.

I stand corrected. Do you know if systems ever shipped with the CDROM 
connected to that input?

-- 
Matt Taggart
taggart@fc.hp.com




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"Peter Saisanas" wrote:
> "Kernel panic: ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping =
> resources" and the c240 locks up.=20

This has come up before on the mailing list.
We need to change ccio_mem_ratio to 2 or otherwise fix
how iova_space_size is getting calculated.

...
> But on rare occations i can at least install the base system and it =
> works very nicely
...
> What do i need to do to get the C240 stable and stop the machine =
> crashing.

arch/parisc/kernel/ccio-dma.c: unmodified: line 169 of 1615 [10%].

/* Ratio of Host MEM to IOV Space size */
static unsigned long ccio_mem_ratio = 4;

replace 4 with 2.

grant


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Ok, I'm back from camp ( and work ). Here's what I did today:

(a) Installed new coin battery on motherboard
(b) Switched EtherPro100 card to 5V/32bit PCI slot

None of this brought back my motherboard's original
ethernet devices. I wish I could figure out what happened,
but I know that the never worked again after plugging a
HCRX-24Z card into the GSC bus. I got one error somewhere
that said something like

"... Something really bad has happened ..." but it never
re-appeared, and neither did the tulip or LASI ether devices.

Ok, through methodical emperical experimentation I have found
that the command:

"# ping -s 157 servername"

Will succeed. However,

"# ping -s 158 servername"

Will fail.


I have kernel 2.1.18, and will try 2.4.19 but I have to burn
a cd to get it on the machine so I have procrastinated. I will
give it a shot tonight, apply Andreas's patch and recompile.

About the last thing in the world I want to do is buy a
tape drive just to reload my firmware. Maybe one of you wizards
could cook up a way to flash it from linux like is done on
a Netwinder?

Later!
- Doug



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Subject: Re: [parisc-linux] PCI Intel EtherExpressPro100 strangeness on C200 machine.
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"B. Douglas Hilton" wrote:
> None of this brought back my motherboard's original
> ethernet devices. I wish I could figure out what happened,
> but I know that the never worked again after plugging a
> HCRX-24Z card into the GSC bus.

Sounds like static or something fried the GSC devices on that bus.

> "... Something really bad has happened ..." but it never
> re-appeared, and neither did the tulip or LASI ether devices.

ouch.

...
> About the last thing in the world I want to do is buy a
> tape drive just to reload my firmware. Maybe one of you wizards
> could cook up a way to flash it from linux like is done on
> a Netwinder?

If you can ressurrect built-in LAN or find an add-on Tulip card,
you could netboot the firmware update (it's a LIF image).

grant


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Subject: Re: [parisc-linux] PCI Intel EtherExpressPro100 strangeness on C200 machine.
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On Monday 19 August 2002 06:58 pm, Grant Grundler wrote:
> "B. Douglas Hilton" wrote:
> ...
>
> > About the last thing in the world I want to do is buy a
> > tape drive just to reload my firmware. Maybe one of you wizards
> > could cook up a way to flash it from linux like is done on
> > a Netwinder?
>
> If you can ressurrect built-in LAN or find an add-on Tulip card,
> you could netboot the firmware update (it's a LIF image).
>
> grant
Perhaps that old type of install, build SCSI disk on different machine, 
physically move disk ot C200.

Mike


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Subject: Re: [parisc-linux] PCI Intel EtherExpressPro100 strangeness on C200 machine.
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Andreas Seltenreich wrote:
> Hi,
> 
> just append " || defined(__hppa__)" to line 47 of drivers/net/eepro100.c
> I got mine working that way.

Sorry - I just noticed that eepro100 for 2.4.19 is substantially
different from 2.4.18. My previous repl was WRT 2.4.18 (RX_ALIGN).

BTW, rx_copybreak is a module param and there must be some way
of passing that in as a boot param too.

grant


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Subject: Re: [parisc-linux] PCI Intel EtherExpressPro100 strangeness on 
 C200 machine.
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Michael S. Zick writes...

> On Monday 19 August 2002 06:58 pm, Grant Grundler wrote:
> > "B. Douglas Hilton" wrote:
> > ...
> >
> > > About the last thing in the world I want to do is buy a
> > > tape drive just to reload my firmware. Maybe one of you wizards
> > > could cook up a way to flash it from linux like is done on
> > > a Netwinder?
> >
> > If you can ressurrect built-in LAN or find an add-on Tulip card,
> > you could netboot the firmware update (it's a LIF image).
> >
> > grant
> Perhaps that old type of install, build SCSI disk on different machine, 
> physically move disk ot C200.

Yeah or a scsi cdrom. Just use cdrecord to burn the firmware update 
lifimage straight to the disk.

-- 
Matt Taggart
taggart@fc.hp.com




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Just an update, I managed to burn the firmware update
to cdrom, boot it, and have updated my firmware to
the latest (6.3) for this machine. It did not fix
the onboard ethernet devices, however :-(


Now I have managed to get the source for
linux-2.4.19-pa3 onto the machine, made the
small patch on line 47 of eepro100.c, and
it is busily compiling away. Will post results
later.

- Doug



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Subject: Re: [parisc-linux] PCI Intel EtherExpressPro100 strangeness on  C200
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Victory! The 2.4.19-pa3 kernel was the charm!

PCI IntelEtherExpressPro100 now working on C200!

I did add the " || defined(__hppa__)"
on line 47 of eepro100.c

Thanks very much to everybody for all the help,
this box has a new lease on life now!

Yaay!



B. Douglas Hilton wrote:
> Just an update, I managed to burn the firmware update
> to cdrom, boot it, and have updated my firmware to
> the latest (6.3) for this machine. It did not fix
> the onboard ethernet devices, however :-(
> 
> 
> Now I have managed to get the source for
> linux-2.4.19-pa3 onto the machine, made the
> small patch on line 47 of eepro100.c, and
> it is busily compiling away. Will post results
> later.
> 
> - Doug



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Subject: Re: [parisc-linux] PCI Intel EtherExpressPro100 strangeness on C200 machine.
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On Mon, Aug 19, 2002 at 06:18:06PM -0600, Grant Grundler wrote:
> Andreas Seltenreich wrote:
> > just append " || defined(__hppa__)" to line 47 of
> > drivers/net/eepro100.c I got mine working that way.
> Sorry - I just noticed that eepro100 for 2.4.19 is substantially
> different from 2.4.18. My previous repl was WRT 2.4.18 (RX_ALIGN).
> BTW, rx_copybreak is a module param and there must be some way of
> passing that in as a boot param too.

All along I wondered why people would quote line numbers instead of code
bits (and linenumbers).




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On Mon, Aug 19, 2002 at 04:09:48AM -0600, John Marvin wrote:
> > > I want to install a CD-Drive in my 715/100. Is it possible to use
> > > the internal audio output of the CD-ROM in the same way it used in
> > > a PC?  Which type of cable do I have to use?

> The connector that was described in this discussion with regard to the 715
> is indeed the CD audio input.

Really? And the pinout is? rggl?

I'd still like to know if there's a manual (the more complete the better
;) for the 715. It seems to be very hard to find even uch information on
these but any manuals or such material seem to have gone in the same
direction as old Alpha manuals.

-- 
                   .
                  ...
                 .....     <-- Grains of mysterious beige powder
                .......       (Taken from Patrick R. Wade's .sig)



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Newsgroups: gmane.linux.ports.parisc
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--EeQfGwPcQSOJBaQU
Content-Type: text/plain; charset=us-ascii
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On Sat, Aug 17, 2002 at 06:05:45PM -0400, Carlos O'Donell wrote:
> Talking with Christophe Rhodes who is porting some Common Lisp code[1]
> to parisc-linux and he has some old-ish code from HPUX (circa 1994)
> that does some interesting things :)

Firstly, thanks to this, my code seems to work on a parisc-1.1 machine
that I have available.  However, I'm having trouble getting it to run on
a parisc64 kernel...

As you may have gathered, the Common Lisp compiler in question depends
quite heavily on signal handling, and in particular SA_SIGINFO
sigaction-style handling. This seems to work fine in 32-bit mode, but
not in 64-bits; in particular, there seem to be some 32/64-bit
confusions going on...

I've attached a test program to (try to) demonstrate the problem; it's
complicated a bit by Debian bug #157374 (basically, incompatibility
between <sys/ucontext.h> and what the kernel actually delivers) but I
hope that what it's doing is clear enough... if I'm doing something
wrong, please let me know.

Inspecting the sigcontext that I get on a parisc64 machine gives
register contents looking a bit like
    [...]
    0xffffffff, 0xdeadbeef, 0x0, 0xf00d, 0x0, 0xfaf00380, 0x0, 0x2097a, 0x0, 
    0xfaf001a4, 0x0, 0x2096a, 0x0, 0x1, 0x0, 0x20972, 0x0, 0x1, 0x0, 0x0, 0x0, 
    [...]

and the alternation of data, 0/-1 is what leads me to believe that
64-bit quantities are being delivered; userland only seems to know about
32-bits, though.

Please don't hesitate to get back to me with comments and/or criticisms,

Cheers,

Christophe
-- 
Jesus College, Cambridge, CB5 8BL                           +44 1223 510 299
http://www-jcsu.jesus.cam.ac.uk/~csr21/                  (defun pling-dollar 
(str schar arg) (first (last +))) (make-dispatch-macro-character #\! t)
(set-dispatch-macro-character #\! #\$ #'pling-dollar)

--EeQfGwPcQSOJBaQU
Content-Type: text/x-csrc; charset=us-ascii
Content-Disposition: attachment; filename="test.c"

#include <stdio.h>
#include <sys/ucontext.h>
#include <signal.h>
/* c.f. Debian Bug#157374 */
#include <asm/sigcontext.h>

void sigsegv_handler(int signal, siginfo_t *info, void *context) {
  fprintf(stderr, "si_addr: %p (should probably be 0x0 [aka \"(nil)\"]\n",info->si_addr);
  fprintf(stderr, "%r1    : 0x%08x (should probably be 0xdeadbeef)\n",
	  ((struct sigcontext *) &(((ucontext_t *) context)->uc_mcontext))->sc_gr[1]);
  exit(0);
}

int main () {
  int *foo;
  struct sigaction sa;
  
  sa.sa_sigaction = sigsegv_handler;
  sa.sa_flags = SA_SIGINFO | SA_RESTART;
  sigaction(SIGSEGV, &sa, NULL);
  
  asm("ldil L%0xdeadbeef,%r1");
  asm("ldo R%0xdeadbeef(%r1),%r1");
  foo = NULL;
  *foo = 3;
}

--EeQfGwPcQSOJBaQU--


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* Harri Haataja <harri.haataja@cs.helsinki.fi> [2002-08-20 10:24]:
> All along I wondered why people would quote line numbers instead of code
> bits (and linenumbers).

Didn't you notice the attachment?

I guess I should put patches inline next time...


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> 
> Inspecting the sigcontext that I get on a parisc64 machine gives
> register contents looking a bit like
>     [...]
>     0xffffffff, 0xdeadbeef, 0x0, 0xf00d, 0x0, 0xfaf00380, 0x0, 0x2097a, 0x0, 
>     0xfaf001a4, 0x0, 0x2096a, 0x0, 0x1, 0x0, 0x20972, 0x0, 0x1, 0x0, 0x0, 0x0, 
>     [...]
> 
> and the alternation of data, 0/-1 is what leads me to believe that
> 64-bit quantities are being delivered; userland only seems to know about
> 32-bits, though.
> 
> Please don't hesitate to get back to me with comments and/or criticisms,
> 
> Cheers,
> Christophe

This might be a kernel bug. We should always return 32-bit quantities to 
userspace (until we get a 64-bit userspace :).

Once we straighten out the sigcontext->mcontext_t issue in glibc, we can
take a look at this. I might just patch glibc on my box tonight... and go
forward with hacking on the kernel bits.

c.



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Hello!!


Can I to run the Oracle 9i on PARISC-LINUX??


Thanks,,

Andr=E9



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On Tue, Aug 20, 2002 at 10:49:57AM -0300, Andr - Inter Commerce Tech. wrote:
> Can I to run the Oracle 9i on PARISC-LINUX??

no

-- 
Revolutions do not require corporate support.


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On Tue, Aug 20, 2002 at 10:49:57AM -0300, ext Andr - Inter Commerce Tech. wrote:
> 
> Hello!!
> 
> Can I to run the Oracle 9i on PARISC-LINUX??

Forget about it, unless Oracle gives the sources away or decides to
compile it for Linux/PA-RISC.

J



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> 
> Hello!!
> Can I to run the Oracle 9i on PARISC-LINUX??
> Thanks,,
> Andr?
> 

apt-get install oracle-9i
Reading Package Lists... Done
Building Dependency Tree... Done
E: Couldn't find package oracle-9i

no :(

c.



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On Tue, Aug 20, 2002 at 10:18:13AM -0400, Carlos O'Donell wrote:

> apt-get install oracle-9i
> Reading Package Lists... Done
> Building Dependency Tree... Done
> E: Couldn't find package oracle-9i

The correct approach would be to use 

apt-cache search oracle

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
"I've not lost my mind. It's backed up on tape somewhere." - Unknown



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Hi all,

To investigate in more details the 'unalign access' problem I met with evms,
I need first to upgrade to evms-1.1.0 with kernel 2.4.19.

After this upgarde, all evms tools failled and I got folowing kernel message
at the console:
kernel BUG at blkpg.c:252!                                       
evms: ldev_mgr: error(-28): creating logical disk for device(8,0).      
      

at line 250 of /drivers/block/blkpg.c I read:
...
   return put_user(uulval << 9, (u64 *)arg);
...

In fact, with message '... at blkpg.c:252!', I am awaiting 'printk(... _FUNCTION_)'.
Also I do not understand where this "BUG" is trapped(?) and which can the
actual source of this new evms problem.

Thanks in advance for all advise,
    Joel

PS: I test it on my i386 without encountering this problem.



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Subject: Re: [parisc-linux] upgrade evms-1.1.0 -> Kernel at blkpg.c (need help)
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On Wed, Aug 21, 2002 at 05:14:28PM +0200, jsoe0708@tiscali.be wrote:
> After this upgarde, all evms tools failled and I got folowing kernel message
> at the console:
> kernel BUG at blkpg.c:252!                                       
> evms: ldev_mgr: error(-28): creating logical disk for device(8,0).      
> 
> at line 250 of /drivers/block/blkpg.c I read:
> ...
>    return put_user(uulval << 9, (u64 *)arg);
> ...

Aw, crap.  It now seems to be `legal' to put_user a 64-bit argument on a
32-bit system.  Someone needs to fix this in include/asm-parisc/uaccess.h

-- 
Revolutions do not require corporate support.


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Subject: [parisc-linux] Voodoo2 PCI as XFree86 2D board on HP9000 C200
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Voodoo2 it is then. I'm sorry but these HP graphics cards
are terrible for X. 8-bit color is really the bottom of the
barrel, and if I can get 16bpp on a Voodoo2 then its well
worth the few bucks one costs these days, plus it adds an
exotic air to the machine... "A HP workstation with a 3dfx
voodoo2 ... oooh aaah." Hmm, might even be able to find some
ancient Quake source with glide support and get it to work.

I used to have a V2 running in Linux several years ago, before
the Banshee, before the Geforce. It really did kick butt and
Quake and Quake2 were super nifty with it. I had my own version
of Mesa compiled with Voodoo2 support and was the envy of my
Linux buddies :-)

What do I do, just use the jumper cable to link the
Visualize-EG to the voodoo2, and start up X? Obviously
I will need the glide libs, but will I also need /dev/tdfx?
Can the Voodoo2 tdfx module be compiled for a 2.4.19-pa3 kernel?

What about console switching? If X is running on the Voodoo2,
and I hit Alt-F2, will it switch back to the Visualize-EG like
it should?

Alan, if you could find a few minutes to send me your XF86Config-4
for one of these boards, or otherwise post some useful tips and
hints that would be great. V2 boards are extremely cheap on Ebay
and such these days, and those monsters deserve a fitting home
in something like a parisc box rather than a dumpster.

Cheers!
- Doug



Alan Cox wrote:
> On Sun, 2002-08-18 at 05:46, Grant Grundler wrote:
> 
>>"B. Douglas Hilton" wrote:
>>
>>>Any hints or tips would be appreciated :-)
>>
>>Search the mail archives.
>>Once upon a time (2 years ago?), Alan Cox explained his ideas
>>on how to make something like this work. He had an A180 in front
>>of him at the time...
> 
> 
> I really doubt you will get a Voodoo3 to work this way. XFree have lots
> of problems with the Voodoo3 INT10 multihead even on x86 - the ROM seems
> to do some quite tricky stuff.
> 
> On the other hand a Voodoo2 should work wonderfully because its got no
> ROM, doesn't appear to be a video card and Glide2 has full source for
> bringing the board up.
> 
> XFree86 also supports using it as a 2D device, but not currently (alas
> 8)) DRI and Xv also. 
> 
> 





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Subject: [parisc-linux] [PATCH] Serial MUX support for Nova and K-Class systems.
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Hello all,

I just committed support for the Serial MUX driver as linux-2.4.19-pa5. 

This patch has been tested on my K460 and has been working well.  The
driver uses the same /dev/ttyB0 device the PDC Software console that
Christoph Plattner wrote and is available under the Non-standard serial
ports section.


Currently the driver only supports the Eole CAP/MUX (A Direct) device
since that is all I have to test with.  Additional devices can be added
under this driver as people with systems have a chance to test.


I tried to document the driver with kerneldoc, but it would be nice if
someone would check over my comment as I had to google/guess what most
of the ioctls and tty flags were.


The committed patch can be found at:
	ftp://ftp.parisc-linux.org/patches/serial_mux_v0.1.diff


Feedback greatly appreciated!

Thanks,

- Ryan




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Subject: Re: [parisc-linux] Voodoo2 PCI as XFree86 2D board on HP9000 C200
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On Thu, 2002-08-22 at 02:55, B. Douglas Hilton wrote:
> I used to have a V2 running in Linux several years ago, before
> the Banshee, before the Geforce. It really did kick butt and
> Quake and Quake2 were super nifty with it. I had my own version
> of Mesa compiled with Voodoo2 support and was the envy of my
> Linux buddies :-)

You'll need to rebuild glide2 and get it going on the box first, so that
is actually a good starting point anyway. 

> What do I do, just use the jumper cable to link the
> Visualize-EG to the voodoo2, and start up X? Obviously
> I will need the glide libs, but will I also need /dev/tdfx?
> Can the Voodoo2 tdfx module be compiled for a 2.4.19-pa3 kernel?

You can do that, or you can run dual head

> What about console switching? If X is running on the Voodoo2,
> and I hit Alt-F2, will it switch back to the Visualize-EG like
> it should?

It does on x86 ... There is also sstfb which is a frame buffer/console
text driver for the voodoo1/2. That might need some endianisation. I'm
wondering if a USB card and a voodoo2 can turn even an A180 into a
desktop ;)



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Subject: Re: [parisc-linux] upgrade evms-1.1.0 -> Kernel at blkpg.c (need help)
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>
>
>On Wed, Aug 21, 2002 at 05:14:28PM +0200, jsoe0708@tiscali.be wrote:
>> After this upgarde, all evms tools failled and I got folowing kernel message
>> at the console:
>> kernel BUG at blkpg.c:252!                                       
>> evms: ldev_mgr: error(-28): creating logical disk for device(8,0).   

> 
>> 
>> at line 250 of /drivers/block/blkpg.c I read:
>> ...
>>    return put_user(uulval << 9, (u64 *)arg);
>> ...
>
>Aw, crap.  It now seems to be `legal' to put_user a 64-bit argument on a
>32-bit system.  Someone needs to fix this in include/asm-parisc/uaccess.h
>
Thanks willy,

I have a look but definitely asm is not for me (sorry).
I will so wait the fix.

Joel




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is it just me, or is cvs.parisc-linux.org down?  I get 

# cvs -q update
cvs [update aborted]: connect to cvs.parisc-linux.org(192.25.206.7):2401 
failed: No route to host
# ping cvs.parisc-linux.org
PING cvs.parisc-linux.org (192.25.206.7): 56 data bytes
^C
--- cvs.parisc-linux.org ping statistics ---
5 packets transmitted, 0 packets received, 100% packet loss



-- 
The more I want to get something done, the less I call it work.
		-- Richard Bach, "Illusions"



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Jeremy Drake writes...

> is it just me, or is cvs.parisc-linux.org down?  I get 

All the parisc-linux.org services were down due to a router problem. It's 
fixed now(that's how your mail went out).

Thanks,

-- 
Matt Taggart        Linux R&D
taggart@fc.hp.com   HP Linux Systems Division




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On Thu, Aug 22, 2002 at 10:54:54AM -0700, Jeremy Drake wrote:
> is it just me, or is cvs.parisc-linux.org down?  I get 

we had a twelve hour outage caused by a glitch on hp's network.  in these
circumstance, since lists.p-l.org and cvs.p-l.org are the same machine,
complaining on the mailing lists gets nowhere ;-)

-- 
Revolutions do not require corporate support.


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> 
> It does on x86 ... There is also sstfb which is a frame buffer/console
> text driver for the voodoo1/2. That might need some endianisation. I'm
> wondering if a USB card and a voodoo2 can turn even an A180 into a
> desktop ;)
> 

I hope to get a PCI Radeon 7000 this weekend to turn a C3K into
a _killer_ workstation ;)

c.


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Subject: [parisc-linux] RFC - glibc - patch reivew - 64->32
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--tThc/1wpZn/ma/RB
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pa,

I've been going through some of the glibc issues that we
have and trying to fix them... or put in a large enough shoe
-horn that the solution fits.

The following are two .dpatch's that I'd like to send to
gotom to get put in for -15 or -16 depending on how much
testing I get done.

The first .dpatch has to do with our jmpbuf implementation,
and the fact that division calculation is not always 
correct. I _think_ this is a solution, but since I'm away
this weekend, I challenge someone to put together a jmpbuf
test that tries to break this. I've been told that anything
using libst is prone to breakage on PA without some ugly
hacks (e.g. lurker).

The second .dpatch fixes our mcontext_t problem. I don't 
know what was going on with out rather wonky definition, but 
I'm probably sure it was just bitrot. I've specified that
a signal context _is_ just a machine context. Kernel and 
glibc are now in sync.

This brings up another issue! When passing the sigcontext
back from a 64-bit kernel, the kernel passes back 64-bit
values and the mcontext is rather useless to the signal
handler. This has _always_ been broken and has never worked
properly. I'm working on adding some rather ugly "#ifdef __LP64__"
code to arch/parisc/signal.c to have it translate the values
into a sigcontext32 that I have defined in sys32.h.
There are a few other examples in signal.c that already do
some rather ugly conversion :)

Suggested solutions:
- Widen sigcontext
- Add conversion code to signal handling path

I would rather do the later... since it doesn't change 
the way we do business across the board.

Ideas and input welcome and appreciated!

c.


--tThc/1wpZn/ma/RB
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="glibc22-hppa-jmpbuf.dpatch"

#! /bin/sh -e

# DP: PA-RISC jmpbuf changes.

if [ $# -ne 2 ]; then
    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
    exit 1
fi
case "$1" in
    -patch) patch -d "$2" -f --no-backup-if-mismatch -p1 < $0;;
    -unpatch) patch -d "$2" -f --no-backup-if-mismatch -R -p1 < $0;;
    *)
        echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
        exit 1
esac
exit 0

diff -urN glibc-2.2.5/sysdeps/hppa/bits/setjmp.h glibc-2.2.5/sysdeps/hppa/bits/setjmp.h
--- glibc-2.2.5/sysdeps/hppa/bits/setjmp.h	2002-08-08 14:03:52.000000000 -0400
+++ glibc-2.2.5/sysdeps/hppa/bits/setjmp.h	2002-08-08 14:06:04.000000000 -0400
@@ -32,7 +32,7 @@
 #endif
 
 #ifndef	_ASM
-typedef double __jmp_buf[21];
+typedef int __jmp_buf[21] __attribute__ ((aligned (8)));
 #endif
 
 /* Test if longjmp to JMPBUF would unwind the frame containing a local

--tThc/1wpZn/ma/RB
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="glibc22-hppa-mcontext.dpatch"

#! /bin/sh -e

# DP: Makes mcontext_t a typedef to sigcontext on hppa.

if [ $# -ne 2 ]; then
    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
    exit 1
fi
case "$1" in
    -patch) patch -d "$2" -f --no-backup-if-mismatch -p1 < $0;;
    -unpatch) patch -d "$2" -f --no-backup-if-mismatch -R -p1 < $0;;
    *)
	echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
	exit 1
esac
exit 0

# append the patch here and adjust the -p? flag in the patch calls.
--- glibc-2.2.5/sysdeps/unix/sysv/linux/hppa/sys/ucontext.h	2002-08-20 20:50:17.000000000 -0400
+++ glibc-2.2.5/sysdeps/unix/sysv/linux/hppa/sys/ucontext.h	2002-08-20 20:49:01.000000000 -0400
@@ -52,11 +52,7 @@
   } fpregset_t;
 
 /* Context to describe whole processor state.  */
-typedef struct
-  {
-    gregset_t gregs;
-    fpregset_t fpregs;
-  } mcontext_t;
+typedef struct sigcontext mcontext_t;
 
 /* Userlevel context.  */
 typedef struct ucontext


--tThc/1wpZn/ma/RB--


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>  #ifndef	_ASM
> -typedef double __jmp_buf[21];
> +typedef int __jmp_buf[21] __attribute__ ((aligned (8)));
>  #endif

this should now be
typedef int __jmp_buf[42] __attribute__ ((aligned (8)));
(sizeof(double) == 2 * sizeof(int))

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> >  #ifndef	_ASM
> > -typedef double __jmp_buf[21];
> > +typedef int __jmp_buf[21] __attribute__ ((aligned (8)));
> >  #endif
> 
> this should now be
> typedef int __jmp_buf[42] __attribute__ ((aligned (8)));
> (sizeof(double) == 2 * sizeof(int))
> 

Correct. Thanks! I've been working in a mixed 32/64-bit mode
for most of the week trying to get sigcontext right... that sometimes
I miss the simple things :}

Can you find example jmpbuf usages that break this?

c.



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Hello,

after a long search in the archives and elsewhere this is seems to be
the only remaining place to ask.

I have a fresh install of Debian 3.0 on my HP Visualize C200. Everything
went fine, except:

X server: no screens found.

So I tried to run fbset or debconf, but even though I said yes when
asked whether I wanted frame buffer support during the installation, and
even though the debconf package is installed, I do not have any fbset or
debonf executables on my hard disk.

There is also no /dev/fbdev.

So which is the command to configure my Linux? How do I get a
/dev/fbdev?

Cheers,
Tobias




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> First of all, what kind of graphics card 
> do you have in it?

Hmm - all I know is: A4552A. I didn't see a list of supported
graphics cards anywhere. Where do I look?

In any case I will try a newer kernel.

Cheers,
Tobias




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Hello,

the other problem is even more puzzling for me: 

how do I get back into the text mode UI in order to select and install
new packages? Somewhere in the archives it says "run debconf" but Debian
did not install any executable file with that name.

Please, give me a hint! Currently, I'm just guessing package names and
installing them using the apt-get command line ...

Thanks.

Tobias




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An A4552A is a Visualize-FX2. Supposedly a very good
graphics board but sadly AFAIK it is not supported
yet for X11. Unsure if it will work at all. You may
need to run in serial-console mode until it is completed,
or try and get a used cheap Visualize-EG card somewhere.



Tobias Giesen wrote:
>>First of all, what kind of graphics card 
>>do you have in it?
> 
> 
> Hmm - all I know is: A4552A. I didn't see a list of supported
> graphics cards anywhere. Where do I look?
> 
> In any case I will try a newer kernel.
> 
> Cheers,
> Tobias
> 
> 
> 





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"Tobias Giesen" writes...

> Hello,
> 
> the other problem is even more puzzling for me: 
> 
> how do I get back into the text mode UI in order to select and install
> new packages? Somewhere in the archives it says "run debconf" but Debian
> did not install any executable file with that name.
> 
> Please, give me a hint! Currently, I'm just guessing package names and
> installing them using the apt-get command line ...

dpkg-reconfigure -plow foo

where foo is the package you want to reconfigure(-plow overrides the 
priority to low making sure it asks you all the questions). Read the man 
page for more details, in particular how to change the frontend(-ftype) and 
how to do all packages (--all).

To change your debconf preferences run

dpkg-reconfigure debconf

-- 
Matt Taggart
taggart@fc.hp.com




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On Sat, Aug 24, 2002 at 12:45:53AM +0200, Tobias Giesen wrote:
> how do I get back into the text mode UI in order to select and install
> new packages?

dselect

-- 
Revolutions do not require corporate support.


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Matthew Wilcox writes...

> On Sat, Aug 24, 2002 at 12:45:53AM +0200, Tobias Giesen wrote:
> > how do I get back into the text mode UI in order to select and install
> > new packages?
> 
> dselect

Oops, I answered the wrong question. I saw deconf and my brain turned off 
after that. It must be Friday...

Anyway now you know how to reconfigure packages that use debconf too :)

-- 
Matt Taggart
taggart@fc.hp.com




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> get a used cheap Visualize-EG card somewhere.

I see - any other models that will work? I read your post about a
Visualize-24. Also, do all the different Visualize-EG models work?

Best wishes,
Tobias




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Don't get a Visualize-24 card. I don't think those
work right now either. Your choice of graphics boards
for a C200 is pretty slim. You have to be careful,
I found that out the HCRX-24Z board apparently fried
my onboard LAN devices when I plugged it onto the GSC bus.
I'm selling it on Ebay right now, so don't buy it,
it won't work :-)

Visualize-EG boards were the low-end boards for C-200
and I think C-180 machines. You may be able to scrounge
one if you are patient. I believe the one you want
is the A4450A. Even still it only has 8-bit color.

I'm going to be attempting to get a *Voodoo2* board
working with X, so if you hang around I may be able
to write a HOWTO-hppa-Voodoo2-XFree86 guide, assuming
it works.

In the meantime, consider getting a used dumb terminal.
I have one and it is pretty convenient at times like
these. If I was getting a new one I think I'd take my
chances on a Wyse-30, they are extremely compact, but
I'm not sure how developed their terminfo support is.
I used my dumb terminal to initially bootstrap my
machine.

Or just run a null modem cable into the serial port
of your other linux box and use something like minicom
to be its terminal.

I realize I'm ramlbing here. Well, I believe that people
are working on getting the FX2/4/6 board working, so
don't get rid of it just yet.




Tobias Giesen wrote:
>>get a used cheap Visualize-EG card somewhere.
> 
> 
> I see - any other models that will work? I read your post about a
> Visualize-24. Also, do all the different Visualize-EG models work?
> 

Not sure. Be careful about putting cards from older machines
into the C200. May cause hardware damage.



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> I'm going to be attempting to get a *Voodoo2* 
> board working with X, so if you hang around 
> I may be able to write a HOWTO-hppa-Voodoo2-
> XFree86 guide, assuming it works.

A very good project that is. If you can make it work I'll get one too. I
assume the Voodoo2 would be initially dead and then activated by
XFree86? Would it need a new BIOS?

Cheers,
Tobias




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If you check back in the archives for this month
Alan Cox wrote in and was talking about the V2.

There is an sstfb framebuffer for the kernel, which
may need some work to use with hppa. Also, XFree86
has a 2D driver for Voodoo1/2 cards which uses the
glide libraries.

But, yes, the V2 card is initially dead until something
wakes it up, so it won't screw up the C200 firmware
hardware scan. The V2 has no BIOS, so thats not an
issue.

Steps to get it to work:

  a.  Compile Glide 2x on hppa (hopefully easy)
  b.  Tweak XF86Config-4 to get it to work (shouldn't be a big deal)
  c.  Tinker with the kernel sstfb code (probably challenging)


I think that a V2 would be a nifty board for these
HPPA boxen, as the documentation for the original
HP cards is lost / gone, and supporting them is
extremely problematic these days. And V2 cards
are pretty plentiful and very inexpensive these
days. Not to mention, they were real powerhouses.

Most of the HP graphics cards used this top-secret
"color recovery technology" which used a special
dithering method to reduce graphics data to 8bpp,
then the card somehow restored it to 24bpp. What
this means is that for all intents and purposed
all HP cards will be limited to 8bpp unless someone
can reverse engineer this stuff, which is probably
very unlikely to ever happen.

With a V2, at least you have a good chance of 16bpp
which to me is good enough. These boxes will never
be big gaming rigs, but 16bpp is nice for the newer
window managers and generally makes for an appealing
looking display.

I have a $15 V2 board winging its way to me now.
I suppose I oughtta get working on compiling glide.
I'll make the full debian source / binary / etc
available on my little Netwinder server if it works.



Tobias Giesen wrote:
>>I'm going to be attempting to get a *Voodoo2* 
>>board working with X, so if you hang around 
>>I may be able to write a HOWTO-hppa-Voodoo2-
>>XFree86 guide, assuming it works.
> 
> 
> A very good project that is. If you can make it work I'll get one too. I
> assume the Voodoo2 would be initially dead and then activated by
> XFree86? Would it need a new BIOS?
> 
> Cheers,
> Tobias




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On Sat, 2002-08-24 at 04:29, Tobias Giesen wrote:
> > I'm going to be attempting to get a *Voodoo2* 
> > board working with X, so if you hang around 
> > I may be able to write a HOWTO-hppa-Voodoo2-
> > XFree86 guide, assuming it works.
> 
> A very good project that is. If you can make it work I'll get one too. I
> assume the Voodoo2 would be initially dead and then activated by
> XFree86? Would it need a new BIOS?

The voodoo2 has no BIOS to worry about. Glide can bring it up from
nothing



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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Voodoo2 (was: Question ...)
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On Sat, 2002-08-24 at 05:13, B. Douglas Hilton wrote:
> Most of the HP graphics cards used this top-secret
> "color recovery technology" which used a special
> dithering method to reduce graphics data to 8bpp,
> then the card somehow restored it to 24bpp. What

The required algorithm is on the HP web site with complete C code for
doing the dither. 

http://www.hp.com/workstations/support/documentation/manuals/user_guides/graphics/GAG11/3_XWindows11.html#HPColorRecovery

Kudos to HP's manual writers. The only bits that are not directly
covered is whether the processing is automatic or we have to bang bits
on the video board to turn on the modes



unsigned char dither_pixel_for_CR(RedValue,GreenValue,BlueValue,Xp,Yp)
  int   RedValue, GreenValue, BlueValue, Xp, Yp;
{
    static short        dither_red[2][16] = {
      {-16,  4, -1, 11,-14,  6, -3,  9,-15,  5, -2, 10,-13,  7, -4,  8},
      { 15, -5,  0,-12, 13, -7,  2,-10, 14, -6,  1,-11, 12, -8,  3,
-9}};
    static short        dither_green[2][16] = {
      { 11,-15,  7, -3,  8,-14,  4, -2, 10,-16,  6, -4,  9,-13,  5, -1},
      {-12, 14, -8,  2, -9, 13, -5,  1,-11, 15, -7,  3,-10, 12, -6, 
0}};
    static short        dither_blue[2][16] = {
      { -3,  9,-13,  7, -1, 11,-15,  5, -4,  8,-14,  6, -2, 10,-16,  4},
      {  2,-10, 12, -8,  0,-12, 14, -6,  3, -9, 13, -7,  1,-11, 15, -5}
};
    int                 red, green, blue;
    int                 x_dither_table, y_dither_table;
    unsigned char       pixel;

    /* Determine the dither table entries to use based on the pixel
address */
    x_dither_table = Xp % 16;   /* X Pixel Address MOD 16 */
    y_dither_table = Yp % 2;    /* Y Pixel Address MOD 2 */

    /* Start with the initial values as supplied by the calling routine
*/
    red   = RedValue;
    green = GreenValue;
    blue  = BlueValue;

    /* Generate the red dither value */
    red += dither_red[y_dither_table][x_dither_table];
    /* Check for overflow or underflow on red value */
    if (red > 0xff) red = 0xff;
    if (red < 0x00) red = 0x00;

    /* Generate the green dither value */
    green += dither_green[y_dither_table][x_dither_table];
    /* Check for overflow or underflow on green value */
    if (green > 0xff) green = 0xff;
    if (green < 0x00) green = 0x00;

    /* Generate the blue dither value */
    blue += (dither_blue[y_dither_table][x_dither_table]<<1);
    /* Check for overflow or underflow on blue value */
    if (blue > 0xff) blue = 0xff;
    if (blue < 0x00) blue = 0x00;

    /* Generate the pixel value by "or"ing the values together */
    pixel = ((red & 0xE0) | ((green & 0xE0) >> 3) | ((blue & 0xC0) >>
6));
    return(pixel);
}

For HCRX the code is

unsigned char dither_pixel_for_CR(RedValue,GreenValue,BlueValue,Xp,Yp)
  int           RedValue,GreenValueBlueValue,Xp,Yp;
{
    static short        dither_red[2][16] = {
      {-16,  4, -1, 11,-14,  6, -3,  9,-15,  5, -2, 10,-13,  7, -4,  8},
      { 15, -5,  0,-12, 13, -7,  2,-10, 14, -6,  1,-11, 12, -8,  3,
-9}};
    static short        dither_green[2][16] = {
      { 11,-15,  7, -3,  8,-14,  4, -2, 10,-16,  6, -4,  9,-13,  5, -1},
      {-12, 14, -8,  2, -9, 13, -5,  1,-11, 15, -7,  3,-10, 12, -6, 
0}};
    static short        dither_blue[2][16] = {
      { -3,  9,-13,  7, -1, 11,-15,  5, -4,  8,-14,  6, -2, 10,-16,  4},
      {  2,-10, 12, -8,  0,-12, 14, -6,  3, -9, 13, -7,  1,-11, 15,
-5}};
    int                 red, green, blue;
    int                 x_dither_table, y_dither_table;
    unsigned char       pixel;

    /* Determine the dither table entries to use based on the pixel
address */
    x_dither_table = Xp % 16;   /* X Pixel Address MOD 16 */
    y_dither_table = Yp % 2;    /* Y Pixel Address MOD 2 */

    /* Start with the initial values as supplied by the calling routine
*/
    red   = RedValue;
    green = GreenValue;
    blue  = BlueValue;

    /* Generate the red dither value */
    if (red >= 48) /* 48 is a constant required by this routine */
       red=red-16;
    else
       red=red/2+8;
    red += dither_red[y_dither_table][x_dither_table];
    /* Check for overflow or underflow on red value */
    if (red > 0xff) red = 0xff;
    if (red < 0x00) red = 0x00;

    /* Generate the green dither value */
    if (green >= 48) /* 48 is a constant required by this routine */
       green=green-16;
    else
       green=green/2+8;
    green += dither_green[y_dither_table][x_dither_table];
    /* Check for overflow or underflow on green value */
    if (green > 0xff) green = 0xff;
    if (green < 0x00) green = 0x00;

    /* Generate the blue dither value */
    if (blue >= 112) /* 112 is a constant required by this routine */
       blue=blue-32;
    else
       blue=blue/2+24;
    blue += (dither_blue[y_dither_table][x_dither_table]<<1);
    /* Check for overflow or underflow on blue value */
    if (blue > 0xff) blue = 0xff;
    if (blue < 0x00) blue = 0x00;

    pixel = ((red & 0xE0) | ((green & 0xE0) >> 3) | ((blue & 0xC0) >>
6));
    return(pixel);
}



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From: "B. Douglas Hilton" <bdhilton@charter.net>
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Subject: [parisc-linux] Compiling glide-2001.01.26 on hppa
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I have received my Voodoo2 board and am now working
on building the glide packages for the hppa architecture.
Working with the Debian source...

dpkg-buildpackage fails with the following line:

cc -O6 -m486 -fomit-frame-pointer -funroll-loops \
-fexpensive-optimizations -ffast-math -DBIG_OPT -I. \
-I/usr/src/glide-2001.01.26/build-tree/glide2x/swlibs/include \
-I/usr/src/glide-2001.01.26/build-tree/glide2x/cvg/include \
-DENDB -DX11 -Wall -fPIC -DPIC -c -o fx64.o fx64.c

cc1: Invalid option `486'


My question is, what incantation should I use on hppa to
replace the '-O6 -m486 -f...' CFLAGS?

Also, a side note, I'm missing the vga pass-through cable
for the Voodoo2. If anybody would be interested in swapping
one of the EVC->VGA dongle cables for an EVC->VGA adapter,
I will kick in $10 to sweeten the deal. The adapter works fine.



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From: Randolph Chung <tausq@debian.org>
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Subject: [parisc-linux] Re: Compiling glide-2001.01.26 on hppa
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> cc -O6 -m486 -fomit-frame-pointer -funroll-loops \
> -fexpensive-optimizations -ffast-math -DBIG_OPT -I. \
> -I/usr/src/glide-2001.01.26/build-tree/glide2x/swlibs/include \
> -I/usr/src/glide-2001.01.26/build-tree/glide2x/cvg/include \
> -DENDB -DX11 -Wall -fPIC -DPIC -c -o fx64.o fx64.c
> 
> cc1: Invalid option `486'
> 
> 
> My question is, what incantation should I use on hppa to
> replace the '-O6 -m486 -f...' CFLAGS?

i would suggest just using "-O2" for now....

randolph


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From: Joel Soete <joel.soete@freebel.net>
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Subject: Re: [parisc-linux] Sources browsing tool?
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Just for reminder in this ml


Alan Cox wrote:
  > On Fri, 2002-06-07 at 18:23, joel.soete@freebel.net wrote:
  >
  >>Hi all,
  >>
  >>Can you advise me some browsing tools which would allowing me to find
quickly
  >>where a variable, a function is define; where is used,... in this big
amount
  >>source which represent kernel now (find is not always easy).
  >>
  >>I find well a work of reverse engineering (rigiedit) of the kernel
but not for 2.4.
  >>And unfortunately sources (tcl/tk iirc) do not seems to be available
to port on
  >>hppa.
  >
  >
  > Try the Linux cross reference - http://lxr.linux.no
  >


I try to install it (from src, from tarball, from cvs): no way of
success (install instruction not uptodate)
But on the same 'sf.net' I found my happyness: sourcenav (5.1.0).

An install of the Install:
./configure --prefix=/opt/sn
make
make install

(That is the first time that I had the opportunity to build a package
with so few warning. It is very beautifull and easy to use :)

And the last but not least: it works fine on my own i386 as well as on
my b2k :)
I am now impatient to test it on a big proj as linux-2.4.

Joel







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> > cc -O6 -m486 -fomit-frame-pointer -funroll-loops \
> > -fexpensive-optimizations -ffast-math -DBIG_OPT -I. \
> > -I/usr/src/glide-2001.01.26/build-tree/glide2x/swlibs/include \
> > -I/usr/src/glide-2001.01.26/build-tree/glide2x/cvg/include \
> > -DENDB -DX11 -Wall -fPIC -DPIC -c -o fx64.o fx64.c
> > 
> > cc1: Invalid option `486'
> > 
> > 
> > My question is, what incantation should I use on hppa to
> > replace the '-O6 -m486 -f...' CFLAGS?
> 
> i would suggest just using "-O2" for now....
> 
> randolph
> 

The issues revolves around the fact that the source tree and 
assembly for some of pieces you want to build are meant for x86 boxes.
Though from a cusory glance it looks like the .c files are present for
these bits (so you can revert to those).

Right off the top:
tvg/makefile.linux:CFLAGS = -O -m486 -fomit-frame-pointer $(LCDEFS) $(LCOPTS) $(LCINC)
glide2x/sst1/init/initvg/makefile.unix:CFLAGS = -O -m486 -fomit-frame-pointer $(LCDEFS) $(LCOPTS) $(LCINC)
glide2x/swlibs/include/make/3dfx.linux.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
glide2x/swlibs/include/make/3dfx.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
glide2x/swlibs/include/make/3dfx.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
glide2x/swlibs/include/make/makefile.autoconf.bottom:GLIDE_DEBUG_GCFLAGS = -O6 -m486
glide3x/swlibs/include/make/3dfx.linux.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
glide3x/swlibs/include/make/3dfx.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
glide3x/swlibs/include/make/3dfx.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
glide3x/swlibs/include/make/makefile.autoconf.bottom:GLIDE_DEBUG_GCFLAGS = -O6 -m486
swlibs/include/make/3dfx.linux.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
swlibs/include/make/3dfx.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
swlibs/include/make/3dfx.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
swlibs/include/make/makefile.autoconf.bottom:GLIDE_DEBUG_GCFLAGS = -O6 -m486

These files will give you some grief and need to be changed; remove the -m486 bit.
You either need to produce .dpatch's for the deb to use or stop building
the deb and do it by hand with the upstream source.

You've got me all excited about seeing this work :) I have a Vodoo1 (Monster3D)
PCI card that I might be tempted to ressurect.

Hope this helps. Sorry about there not being a _magic_ switch :)

c.



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Subject: Re: [parisc-linux] Voodoo2 (was: Question ...)
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Keep us posted since I just so happen to have a Voodoo2 sitting in my
OLD HP 166MHz Pavilion....;)

derek


--- Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> On Sat, 2002-08-24 at 04:29, Tobias Giesen wrote:
> > > I'm going to be attempting to get a *Voodoo2* 
> > > board working with X, so if you hang around 
> > > I may be able to write a HOWTO-hppa-Voodoo2-
> > > XFree86 guide, assuming it works.
> > 
> > A very good project that is. If you can make it work I'll get one
> too. I
> > assume the Voodoo2 would be initially dead and then activated by
> > XFree86? Would it need a new BIOS?
> 
> The voodoo2 has no BIOS to worry about. Glide can bring it up from
> nothing
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


__________________________________________________
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Hello,

so if we use the Voodoo2 for X only (with the video jumper cable), do we
still need a challenging kernel modification?

Cheers,
Tobias




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On Sun, 2002-08-25 at 17:54, Tobias Giesen wrote:
> Hello,
> 
> so if we use the Voodoo2 for X only (with the video jumper cable), do we
> still need a challenging kernel modification?

Shouldnt do. Its actually best done with two monitors for debugging btw.
That way you can see what blew up 8)



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Hi,

I got my hands on a K580 Quad processors, 4G Ram, CD, DDS3 Tape drive,
2 Fibre Channels on HSC, Dual 100BaseT network connectors on HSC,
FW SCSI on HSC and 2 SCSI interface on HPPB (OK I know the HPPB is not
supported)
but no hard disks.

Previously I have installed PA-Linux on a 735/125.

I am trying to install palinux-2.4.18-pa59-ppc-20020728-netinstall image on
the K580
I am using a variety of SCSI disks I am trying to install to but I am having
problems.

The disks are being installed internally on the K580. I have downloaded the
users guide
from docs.hp.com.

First Try

I installed Tape and CD to Single ended bus of the Disk cage and install a
Maxtor Altas II
4.5G UW to ultra wide bus of Disk Cage and yes the cable was terminated.

The boot process found the CD, DDS3 but not the disk. I could boot from CD
but the installer 
complained about on disk.

Second Try

I installed Tape and CD to Single ended bus of the Disk cage and install a
Seagate
2.1G SE to SE bus of Disk Cage in parallel with the CD and Tape.

The boot process found the CD, DDS3 but not the disk. I could boot from CD
but the installer 
found the disk CD and Tape. I installed to disk and at reboot boot could not
find the disk
only the tape and the CD.

All other trys

I have tried various combinations but have not susceed in get the boot to
recognised the
hard disk. I cannot get Pa-linux to recognised the Ultra Wide bus which
leaves me to question
whether it is supported or do I have a hardware problem.

The Boot reports through its Search for Boot devices function that it finds

The 2 FC devices
the Lan (which I assume is the 10BaseT on the Core IO not the 100BaseT)
a sequential device (Tape Drive)
a random device (CD)

The primary boot device at present seems to me to be set up for the Fibre
Channel
(I think the I am not used to the addressing).

I have thought of Rboot or tftboot the K580 from the the 735 and then the
kernel will
recognise the disk. But this is not usefull in the long term as I may get
rid of the 735
and my Intel box which is my main server as I want to make the K580 my main
server.

Any help or suggestions would be appreciated,


Steve Grady

BTW Thanks for a great port my little 735 just sits there and works (mostly
running SETI)


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Possible issues:

"First try." The internal disk drives in the K580 are fast wide 
differential. The differential is high voltage differential, not low 
voltage differential. Could be that the Maxtor 4.5GB UW is the wrong type.

"Second try." The normal cable in the K580 that goes to the tape and CD 
only has two open scsi connections plus the terminator. One connection 
for tape, another for the CD. Did you substitute another cable with a 
third open scsi connection?

Just guessing.

Averell
Steve.Grady@csiro.au wrote:

> Hi,
> 
> I got my hands on a K580 Quad processors, 4G Ram, CD, DDS3 Tape drive,
> 2 Fibre Channels on HSC, Dual 100BaseT network connectors on HSC,
> FW SCSI on HSC and 2 SCSI interface on HPPB (OK I know the HPPB is not
> supported)
> but no hard disks.
> 
> Previously I have installed PA-Linux on a 735/125.
> 
> I am trying to install palinux-2.4.18-pa59-ppc-20020728-netinstall image on
> the K580
> I am using a variety of SCSI disks I am trying to install to but I am having
> problems.
> 
> The disks are being installed internally on the K580. I have downloaded the
> users guide
> from docs.hp.com.
> 
> First Try
> 
> I installed Tape and CD to Single ended bus of the Disk cage and install a
> Maxtor Altas II
> 4.5G UW to ultra wide bus of Disk Cage and yes the cable was terminated.
> 
> The boot process found the CD, DDS3 but not the disk. I could boot from CD
> but the installer 
> complained about on disk.
> 
> Second Try
> 
> I installed Tape and CD to Single ended bus of the Disk cage and install a
> Seagate
> 2.1G SE to SE bus of Disk Cage in parallel with the CD and Tape.
> 
> The boot process found the CD, DDS3 but not the disk. I could boot from CD
> but the installer 
> found the disk CD and Tape. I installed to disk and at reboot boot could not
> find the disk
> only the tape and the CD.
> 
> All other trys
> 
> I have tried various combinations but have not susceed in get the boot to
> recognised the
> hard disk. I cannot get Pa-linux to recognised the Ultra Wide bus which
> leaves me to question
> whether it is supported or do I have a hardware problem.
> 
> The Boot reports through its Search for Boot devices function that it finds
> 
> The 2 FC devices
> the Lan (which I assume is the 10BaseT on the Core IO not the 100BaseT)
> a sequential device (Tape Drive)
> a random device (CD)
> 
> The primary boot device at present seems to me to be set up for the Fibre
> Channel
> (I think the I am not used to the addressing).
> 
> I have thought of Rboot or tftboot the K580 from the the 735 and then the
> kernel will
> recognise the disk. But this is not usefull in the long term as I may get
> rid of the 735
> and my Intel box which is my main server as I want to make the K580 my main
> server.
> 
> Any help or suggestions would be appreciated,
> 
> 
> Steve Grady
> 
> BTW Thanks for a great port my little 735 just sits there and works (mostly
> running SETI)
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


-- 
Averell

Eisner Associates, Inc.			Phone: 908-233-6585
516 North Ave. East			FAX:   908-233-0710
P.O. Box 2489
Westfield, NJ 07090



From - Thu Nov 08 21:24:15 2018
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Subject: [parisc-linux] questionable code in glibc sunrpc code?
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glibc's sunrpc/clnt_tcp.c contains code like this:

      *(u_long *)(ct->ct_mcall + 3 * BYTES_PER_XDR_UNIT)
              = htonl(*(u_long *)info);

ct->ct_mcall is a char[] array that's after a struct,
BYTES_PER_XDR_UNIT is 4

if sizeof(u_long) is 8, then this is an unaligned access... (gcc notices
and complains loudly :-)

this code apparently works on other 64-bit archs.... anyone know how?

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: RE: [parisc-linux] SCSI Disks on a K580 Help Required
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> -----Original Message-----
> From: Averell Eisner [mailto:a_eisner@eisner.com]
> Sent: Monday, 26 August 2002 8:27 AM
> To: Steve.Grady@csiro.au
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] SCSI Disks on a K580 Help Required
> 
> 
> Possible issues:
> 
> "First try." The internal disk drives in the K580 are fast wide 
> differential. The differential is high voltage differential, not low 
> voltage differential. Could be that the Maxtor 4.5GB UW is 
> the wrong type.


Well I hope I have not damaged the drive


> 
> "Second try." The normal cable in the K580 that goes to the 
> tape and CD 
> only has two open scsi connections plus the terminator. One 
> connection 
> for tape, another for the CD. Did you substitute another cable with a 
> third open scsi connection?


Yes I substituted another cable (It did not come with any cables, they were
removed with the drive)
It was properly terminated by an external terminator. As I said after boot
from the CD a drive on the
single ended bus was detected ( and the CD and Tape) by the kernel but was
not detected by boot.

It has been suggested by someone else (they did not reply to list) that I
boot from CD which seems to me
the easiest work-around.

Thank for the assistance,


Steve Grady

> 
> Just guessing.
> 
> Averell
> Steve.Grady@csiro.au wrote:
> 
> > Hi,
> > 
> > I got my hands on a K580 Quad processors, 4G Ram, CD, DDS3 
> Tape drive,
> > 2 Fibre Channels on HSC, Dual 100BaseT network connectors on HSC,
> > FW SCSI on HSC and 2 SCSI interface on HPPB (OK I know the 
> HPPB is not
> > supported)
> > but no hard disks.
> > 
> > Previously I have installed PA-Linux on a 735/125.
> > 
> > I am trying to install 
> palinux-2.4.18-pa59-ppc-20020728-netinstall image on
> > the K580
> > I am using a variety of SCSI disks I am trying to install 
> to but I am having
> > problems.
> > 
> > The disks are being installed internally on the K580. I 
> have downloaded the
> > users guide
> > from docs.hp.com.
> > 
> > First Try
> > 
> > I installed Tape and CD to Single ended bus of the Disk 
> cage and install a
> > Maxtor Altas II
> > 4.5G UW to ultra wide bus of Disk Cage and yes the cable 
> was terminated.
> > 
> > The boot process found the CD, DDS3 but not the disk. I 
> could boot from CD
> > but the installer 
> > complained about on disk.
> > 
> > Second Try
> > 
> > I installed Tape and CD to Single ended bus of the Disk 
> cage and install a
> > Seagate
> > 2.1G SE to SE bus of Disk Cage in parallel with the CD and Tape.
> > 
> > The boot process found the CD, DDS3 but not the disk. I 
> could boot from CD
> > but the installer 
> > found the disk CD and Tape. I installed to disk and at 
> reboot boot could not
> > find the disk
> > only the tape and the CD.
> > 
> > All other trys
> > 
> > I have tried various combinations but have not succeed in 
> get the boot to
> > recognised the
> > hard disk. I cannot get Pa-linux to recognised the Ultra 
> Wide bus which
> > leaves me to question
> > whether it is supported or do I have a hardware problem.
> > 
> > The Boot reports through its Search for Boot devices 
> function that it finds
> > 
> > The 2 FC devices
> > the Lan (which I assume is the 10BaseT on the Core IO not 
> the 100BaseT)
> > a sequential device (Tape Drive)
> > a random device (CD)
> > 
> > The primary boot device at present seems to me to be set up 
> for the Fibre
> > Channel
> > (I think the I am not used to the addressing).
> > 
> > I have thought of Rboot or tftboot the K580 from the 
> 735 and then the
> > kernel will
> > recognise the disk. But this is not useful in the long 
> term as I may get
> > rid of the 735
> > and my Intel box which is my main server as I want to make 
> the K580 my main
> > server.
> > 
> > Any help or suggestions would be appreciated,
> > 
> > 
> > Steve Grady
> > 
> > BTW Thanks for a great port my little 735 just sits there 
> and works (mostly
> > running SETI)
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> > 
> 
> 
> -- 
> Averell
> 
> Eisner Associates, Inc.			Phone: 908-233-6585
> 516 North Ave. East			FAX:   908-233-0710
> P.O. Box 2489
> Westfield, NJ 07090
> 


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Subject: Re: [parisc-linux] questionable code in glibc sunrpc code?
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> this code apparently works on other 64-bit archs.... anyone know how?

They may not require strict alignment.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi,
I thought that PA-Linux can run PA-RISC/HPUX binaries...if so, then you 
can run Oracle9i for HPUX11, don't you ?

Rgds,
Eric.

Ralf Hildebrandt wrote:

>On Tue, Aug 20, 2002 at 10:18:13AM -0400, Carlos O'Donell wrote:
>
>  
>
>>apt-get install oracle-9i
>>Reading Package Lists... Done
>>Building Dependency Tree... Done
>>E: Couldn't find package oracle-9i
>>    
>>
>
>The correct approach would be to use 
>
>apt-cache search oracle
>
>  
>

-- 
Eric Boniface - Hewlett Packard / HPS-IT Infrastructure Team Grenoble 
Tel.(+33) 4 76 14 30 17 / Telnet : 779-3017
E-mail : eric_boniface@non.hp.com 
--- Want to know more about Linux on HP PARISC ? Take a look at http://www.parisc-linux.org







--------------030909010100040103040703
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html;charset=ISO-8859-1">
  <title></title>
</head>
<body>
Hi,<br>
I thought that PA-Linux can run PA-RISC/HPUX binaries...if so, then you can
run Oracle9i for HPUX11, don't you ? <br>
<br>
Rgds,<br>
Eric.<br>
<br>
Ralf Hildebrandt wrote:<br>
<blockquote type="cite" cite="mid20020820142315.GI13589@charite.de">
  <pre wrap="">On Tue, Aug 20, 2002 at 10:18:13AM -0400, Carlos O'Donell wrote:

  </pre>
  <blockquote type="cite">
    <pre wrap="">apt-get install oracle-9i
Reading Package Lists... Done
Building Dependency Tree... Done
E: Couldn't find package oracle-9i
    </pre>
  </blockquote>
  <pre wrap=""><!---->
The correct approach would be to use 

apt-cache search oracle

  </pre>
</blockquote>
<br>
<pre class="moz-signature" cols="$mailwrapcol">-- 
Eric Boniface - Hewlett Packard / HPS-IT Infrastructure Team Grenoble 
Tel.(+33) 4 76 14 30 17 / Telnet : 779-3017
E-mail : <a class="moz-txt-link-abbreviated" href="mailto:eric_boniface@non.hp.com">eric_boniface@non.hp.com</a> 
--- Want to know more about Linux on HP PARISC ? Take a look at <a class="moz-txt-link-freetext" href="http://www.parisc-linux.org">http://www.parisc-linux.org</a>




</pre>
<br>
</body>
</html>

--------------030909010100040103040703--



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On Mon, Aug 26, 2002 at 10:41:59AM +0200, Eric Boniface wrote:
> Hi,
> I thought that PA-Linux can run PA-RISC/HPUX binaries...if so, then you 
> can run Oracle9i for HPUX11, don't you ?

I think this binary compatability support is rather limited.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
The secret of flying is simple: Throw yourself at the ground and miss.



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Subject: [parisc-linux] Re: [parisc-linux-cvs] Serial MUX driver update.
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On Sun, Aug 25, 2002 at 09:30:35PM -0600, Ryan Bradetich wrote:
> Update to the serial mux driver.
>  static struct parisc_device_id mux_tbl[] = {
>  	{ HPHW_A_DIRECT, HVERSION_REV_ANY_ID, 0x015, 0x0000D }, /* Eole CAP/MUX */
> +	{ HPHW_A_DIRECT, HVERSION_REV_ANY_ID, 0x044, 0x0000D }, /* Sahp Baat Kiuh AP/MUX */
>  	{ 0, }
>  };

May I suggest:

static struct parisc_device_id mux_tbl[] = {
	{ HPHW_A_DIRECT, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0000D }, 
	{ 0, }
};

since this driver should work for all MUXes, not just Eole & SBK.

By and large, everyone should have HVERSION_ANY_ID in their
parisc_device_id tables.  There's some exceptions (ccio, astro, elroy,
dino, serial), but most drivers shouldn't need to discriminate on
hversion.

-- 
Revolutions do not require corporate support.


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Hi,

i am using a 710 here (quite old, but interesting) with Woody installed. Since 
it has the 2.4.17-32 kernel supplied, I would like to update it to 2.4.19. I 
downloaded the vanilla kernel sources but it does not compile with the 
gcc-3.0.4. Do I have to use the special -pa kernel from cvs or should it also 
work with the normal kernel sources? The main reason for this update is to get 
the HIL mouse working.

Chris

-- 
Linux - Cause life is too short for reboots




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> Hi,
> 
> i am using a 710 here (quite old, but interesting) with Woody installed. 
> Since it has the 2.4.17-32 kernel supplied, I would like to update it to 
> 2.4.19. I downloaded the vanilla kernel sources but it does not compile 
> with the gcc-3.0.4. Do I have to use the special -pa kernel from cvs or 
> should it also work with the normal kernel sources? The main reason for 
> this update is to get the HIL mouse working.
> 
> Chris
>

A vanilla kernel is not quite up to date :)

The best source for the most recent changes is:
http://cvs.parisc-linux.org

You can get instructions on CVS downloading/building from:
http://www.parisc-linux.org/kernel/index.html

Cheers,
Carlos.



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Hi all,

Thanks a lot to make pa patch available (in ftp.parisc-linux.org/cvs).

That will allow to save place and more than all it will give me more time
to test (better than wait the end of a download).

Very great,
    Joel



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Steve.Grady@csiro.au wrote:
> > "First try." The internal disk drives in the K580 are fast wide 
> > differential. The differential is high voltage differential, not low 
> > voltage differential. Could be that the Maxtor 4.5GB UW is 
> > the wrong type.
> Well I hope I have not damaged the drive

HP tested that. The NCR 53cxxx chips "tristate" the bus when
the wrong signaling is used. You can smoke devices by adding/removing
termination will the bus is active (ie disconnect a cable).

grant


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In-Reply-To: Message from Grant Grundler <grundler@dsl2.external.hp.com> 
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Grant Grundler wrote:
> HP tested that. The NCR 53cxxx chips "tristate" the bus when
> the wrong signaling is used. You can smoke devices by adding/removing
> termination will the bus is active (ie disconnect a cable).

s/will/while/

grant


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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] PCI Intel EtherExpressPro100 strangeness on C200 machine.
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In-Reply-To: Message from Andreas Seltenreich <s_selten@informatik.uni-karlsruhe.de> 
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Andreas Seltenreich wrote:
> just append " || defined(__hppa__)" to line 47 of drivers/net/eepro100.c
> I got mine working that way.

For some definition of "working".
That #ifdef "forces" the RX copy *most* of the time.
If the dev_alloc_skb() call fails , the "broken" code path is taken anyway.

The code needs to differentiate architectures that *could* (but it's not
efficient) avoid the copy from architectures that *must* copy.

Patch below assumes the archs listed in the ifdef *must* copy.
If the dev_alloc_skb() fails, we drop the packet and update stats.
Not sure if I'm doing the right thing in the failure case though...

grant


Index: drivers/net/eepro100.c
===================================================================
RCS file: /var/cvs/linux/drivers/net/eepro100.c,v
retrieving revision 1.17
diff -u -p -r1.17 eepro100.c
--- drivers/net/eepro100.c	4 Aug 2002 22:58:29 -0000	1.17
+++ drivers/net/eepro100.c	26 Aug 2002 17:25:58 -0000
@@ -1,4 +1,3 @@
-/* drivers/net/eepro100.c: An Intel i82557-559 Ethernet driver for Linux. */
 /*
    NOTICE: For use with late 2.3 kernels only.
    May not compile for kernels 2.3.43-47.
@@ -43,11 +42,13 @@ static int rxdmacount /* = 0 */;
 
 /* Set the copy breakpoint for the copy-only-tiny-buffer Rx method.
    Lower values use more memory, but are faster. */
+static int rx_copybreak = 200;
+
 #if defined(__alpha__) || defined(__sparc__) || defined(__mips__) || \
-    defined(__arm__)
-static int rx_copybreak = 1518;
+    defined(__arm__) || defined(__hppa__)
+#define RX_COPY(x)		1
 #else
-static int rx_copybreak = 200;
+#define RX_COPY(x) (x < rx_copybreak)
 #endif
 
 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
@@ -1760,10 +1761,17 @@ speedo_rx(struct net_device *dev)
 		} else {
 			struct sk_buff *skb;
 
-			/* Check if the packet is long enough to just accept without
-			   copying to a properly sized skbuff. */
-			if (pkt_len < rx_copybreak
-				&& (skb = dev_alloc_skb(pkt_len + 2)) != 0) {
+			/* Check if the packet is long enough to just accept
+			 * without copying to a properly sized skbuff.
+			 */
+			if (RX_COPY(pkt_len)) {
+				skb = dev_alloc_skb(pkt_len + 2);
+				if (!skb) {
+					printk(KERN_ERR "%s: dropping packet,"
+						"no user space buffer!",
+						status);
+					goto update_stats;
+				}
 				skb->dev = dev;
 				skb_reserve(skb, 2);	/* Align IP on 16 byte boundaries */
 				/* 'skb_put()' points to the start of sk_buff data area. */
@@ -1797,6 +1805,7 @@ speedo_rx(struct net_device *dev)
 			sp->stats.rx_packets++;
 			sp->stats.rx_bytes += pkt_len;
 		}
+update_stats:
 		entry = (++sp->cur_rx) % RX_RING_SIZE;
 		sp->rx_ring_state &= ~RrPostponed;
 		/* Refill the recently taken buffers.


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Subject: [parisc-linux] Breaking PARISC ABI - Testing procedures?
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debian-gcc,

I sense another PARISC ABI breakage coming in the very near
future. The ABI breakage is caused by the following three
items:

1- setjmp/longjmp implementation is flawed (Testing)
2- mcontext_t is incorrect in glibc (BTS #157374)
3- sizeof(long double) is incorrect in gcc and glibc (?)

My main question is:

How does one run a preliminary test to ferret out
possibly problems that were not forseen?

My current procedure is to build a new glibc, create
a chroot, install glibc there and begin building things.

Does anyone have a general procedure for this? Or is
this what experimental or unstable is about? :/  

---

I'm working on providing various test cases for "1-" and 
I already have a patch in my local glibc tree (the initial
patch made the mistake of not allocating enough room for
jmpbuf - kudos to Randolph for noticing that during RFC).

I have a patch for "2-" and it works, but we have a kernel
bug when copying registers into the sigcontext that gets
passed back to a 32-bit userspace from a 64-bit kernel.
Luckily the old definition of mcontect_t matches the new
sigcontext typedef for accesses to general registers and
floating point registers, so we maintain backwards compat
in that scenario. I would like to note that it has never
worked when running a 64-bit kernel under parisc :}

The last issue will get fixed when I get around to poking
changes at gcc.

c.



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q-funk@pp.fishpool.fi (Martin-=C9ric Racine) writes:

> I noticed that kernel-source-2.4.19 made its ways into the Sarge/testing=
=20
> tree, but I see no specific package for hppa, this time.=20=20

bdale@auric:~$ madison kernel-source-2.4.19-hppa
kernel-source-2.4.19-hppa |        4.1 |      unstable | all

The kernel-source-2.4.19-hppa binary package is derived from the source
package kernel-image-2.4.19-hppa, which was just accepted into sid (unstabl=
e).
It will take some time for that to be promoted into testing...

Bdale


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: RE: [parisc-linux] SCSI Disks on a K580 Help Required
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I have the proper intenal cable for a K-Class in my spare parts case in
my van.  I think I have a couple of them in there for emergencies.  I
could spare one, but I guess you would have to be willing to pay for
shipping to the land of the Aussies.... ;)  Having worked on litterally
thousands of K-Class servers, I have never seen a drive smoke as a
result of the wrong termination or wrong type of bus.  I have however
seen it smoke the interface it was plugged into.  Usually it blows the
fuse on the board for the scsi bus.  Sometimes that fuse is replaceable
sometimes not.  The fuse for the K-Class internal disks is located on
the Core I/O board.  It's got a clear top/black bottom and just pulls
out of it's socket.  It has 2 legs that you should be carefull not to
break.  You can Ohm it with an Ohm meter to see if it's opened up or
not.  I would check with the Maxtor site and reference the model number
of the drive to find out whether or not it's LVD or HVD.  HVD is what
you need.  If the bus speed is 40MB/s than it's HVD.  If it's 80MB/s or
higher it's LVD and not useable unless you connect it to the single
ended bus.  HP does not support 3rd party boot disks as a general rule
and most drives will not boot HP-UX without HP firmware in them.  That
HP firmware is usually on Seagate or IBM disks.  HP has used Quantums
and others in it's workstations and even in that case it is a different
firmware level than in the servers.  Don't know if the drive not having
HP firmware could be an issue too.  If the fuse is blown I could drop
one of those in the box too.....have a bag of those laying around and
we don't replace fuses anymore.  Board swaps only even if it's just the
fuse that is blown.

derek

--- Steve.Grady@csiro.au wrote:
> 
> 
> > -----Original Message-----
> > From: Averell Eisner [mailto:a_eisner@eisner.com]
> > Sent: Monday, 26 August 2002 8:27 AM
> > To: Steve.Grady@csiro.au
> > Cc: parisc-linux@lists.parisc-linux.org
> > Subject: Re: [parisc-linux] SCSI Disks on a K580 Help Required
> > 
> > 
> > Possible issues:
> > 
> > "First try." The internal disk drives in the K580 are fast wide 
> > differential. The differential is high voltage differential, not
> low 
> > voltage differential. Could be that the Maxtor 4.5GB UW is 
> > the wrong type.
> 
> 
> Well I hope I have not damaged the drive
> 
> 
> > 
> > "Second try." The normal cable in the K580 that goes to the 
> > tape and CD 
> > only has two open scsi connections plus the terminator. One 
> > connection 
> > for tape, another for the CD. Did you substitute another cable with
> a 
> > third open scsi connection?
> 
> 
> Yes I substituted another cable (It did not come with any cables,
> they were
> removed with the drive)
> It was properly terminated by an external terminator. As I said after
> boot
> from the CD a drive on the
> single ended bus was detected ( and the CD and Tape) by the kernel
> but was
> not detected by boot.
> 
> It has been suggested by someone else (they did not reply to list)
> that I
> boot from CD which seems to me
> the easiest work-around.
> 
> Thank for the assistance,
> 
> 
> Steve Grady
> 
> > 
> > Just guessing.
> > 
> > Averell
> > Steve.Grady@csiro.au wrote:
> > 
> > > Hi,
> > > 
> > > I got my hands on a K580 Quad processors, 4G Ram, CD, DDS3 
> > Tape drive,
> > > 2 Fibre Channels on HSC, Dual 100BaseT network connectors on HSC,
> > > FW SCSI on HSC and 2 SCSI interface on HPPB (OK I know the 
> > HPPB is not
> > > supported)
> > > but no hard disks.
> > > 
> > > Previously I have installed PA-Linux on a 735/125.
> > > 
> > > I am trying to install 
> > palinux-2.4.18-pa59-ppc-20020728-netinstall image on
> > > the K580
> > > I am using a variety of SCSI disks I am trying to install 
> > to but I am having
> > > problems.
> > > 
> > > The disks are being installed internally on the K580. I 
> > have downloaded the
> > > users guide
> > > from docs.hp.com.
> > > 
> > > First Try
> > > 
> > > I installed Tape and CD to Single ended bus of the Disk 
> > cage and install a
> > > Maxtor Altas II
> > > 4.5G UW to ultra wide bus of Disk Cage and yes the cable 
> > was terminated.
> > > 
> > > The boot process found the CD, DDS3 but not the disk. I 
> > could boot from CD
> > > but the installer 
> > > complained about on disk.
> > > 
> > > Second Try
> > > 
> > > I installed Tape and CD to Single ended bus of the Disk 
> > cage and install a
> > > Seagate
> > > 2.1G SE to SE bus of Disk Cage in parallel with the CD and Tape.
> > > 
> > > The boot process found the CD, DDS3 but not the disk. I 
> > could boot from CD
> > > but the installer 
> > > found the disk CD and Tape. I installed to disk and at 
> > reboot boot could not
> > > find the disk
> > > only the tape and the CD.
> > > 
> > > All other trys
> > > 
> > > I have tried various combinations but have not succeed in 
> > get the boot to
> > > recognised the
> > > hard disk. I cannot get Pa-linux to recognised the Ultra 
> > Wide bus which
> > > leaves me to question
> > > whether it is supported or do I have a hardware problem.
> > > 
> > > The Boot reports through its Search for Boot devices 
> > function that it finds
> > > 
> > > The 2 FC devices
> > > the Lan (which I assume is the 10BaseT on the Core IO not 
> > the 100BaseT)
> > > a sequential device (Tape Drive)
> > > a random device (CD)
> > > 
> > > The primary boot device at present seems to me to be set up 
> > for the Fibre
> > > Channel
> > > (I think the I am not used to the addressing).
> > > 
> > > I have thought of Rboot or tftboot the K580 from the 
> > 735 and then the
> > > kernel will
> > > recognise the disk. But this is not useful in the long 
> > term as I may get
> > > rid of the 735
> > > and my Intel box which is my main server as I want to make 
> > the K580 my main
> > > server.
> > > 
> > > Any help or suggestions would be appreciated,
> > > 
> > > 
> > > Steve Grady
> > > 
> > > BTW Thanks for a great port my little 735 just sits there 
> > and works (mostly
> > > running SETI)
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > > 
> > > 
> > 
> > 
> > -- 
> > Averell
> > 
> > Eisner Associates, Inc.			Phone: 908-233-6585
> > 516 North Ave. East			FAX:   908-233-0710
> > P.O. Box 2489
> > Westfield, NJ 07090
> > 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


__________________________________________________
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Subject: Re: [parisc-linux] Re: Compiling glide-2001.01.26 on hppa
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To: Carlos O'Donell <carlos@baldric.uwo.ca>
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Try starting with the source for glide3-alpha.  It is the 64-bit branch of
the glide sources.  I tweaked them to compile ok on Alpha and they
shouldn't be hard to fix up for hppa as well.

C

On Sat, 24 Aug 2002, Carlos O'Donell wrote:

> > > cc -O6 -m486 -fomit-frame-pointer -funroll-loops \
> > > -fexpensive-optimizations -ffast-math -DBIG_OPT -I. \
> > > -I/usr/src/glide-2001.01.26/build-tree/glide2x/swlibs/include \
> > > -I/usr/src/glide-2001.01.26/build-tree/glide2x/cvg/include \
> > > -DENDB -DX11 -Wall -fPIC -DPIC -c -o fx64.o fx64.c
> > > 
> > > cc1: Invalid option `486'
> > > 
> > > 
> > > My question is, what incantation should I use on hppa to
> > > replace the '-O6 -m486 -f...' CFLAGS?
> > 
> > i would suggest just using "-O2" for now....
> > 
> > randolph
> > 
> 
> The issues revolves around the fact that the source tree and 
> assembly for some of pieces you want to build are meant for x86 boxes.
> Though from a cusory glance it looks like the .c files are present for
> these bits (so you can revert to those).
> 
> Right off the top:
> tvg/makefile.linux:CFLAGS = -O -m486 -fomit-frame-pointer $(LCDEFS) $(LCOPTS) $(LCINC)
> glide2x/sst1/init/initvg/makefile.unix:CFLAGS = -O -m486 -fomit-frame-pointer $(LCDEFS) $(LCOPTS) $(LCINC)
> glide2x/swlibs/include/make/3dfx.linux.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
> glide2x/swlibs/include/make/3dfx.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
> glide2x/swlibs/include/make/3dfx.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
> glide2x/swlibs/include/make/makefile.autoconf.bottom:GLIDE_DEBUG_GCFLAGS = -O6 -m486
> glide3x/swlibs/include/make/3dfx.linux.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
> glide3x/swlibs/include/make/3dfx.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
> glide3x/swlibs/include/make/3dfx.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
> glide3x/swlibs/include/make/makefile.autoconf.bottom:GLIDE_DEBUG_GCFLAGS = -O6 -m486
> swlibs/include/make/3dfx.linux.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
> swlibs/include/make/3dfx.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
> swlibs/include/make/3dfx.mak:CNODEBUG       = -O6 -m486 -fomit-frame-pointer -funroll-loops \
> swlibs/include/make/makefile.autoconf.bottom:GLIDE_DEBUG_GCFLAGS = -O6 -m486
> 
> These files will give you some grief and need to be changed; remove the -m486 bit.
> You either need to produce .dpatch's for the deb to use or stop building
> the deb and do it by hand with the upstream source.
> 
> You've got me all excited about seeing this work :) I have a Vodoo1 (Monster3D)
> PCI card that I might be tempted to ressurect.
> 
> Hope this helps. Sorry about there not being a _magic_ switch :)
> 
> c.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 



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Subject: [parisc-linux] glibc hppa - get/set/make/swap/context() & non-atomic ops
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PA'ers,

Comments or thoughts about the following issues would be appreciated.

These items are taken from my collection of TODO notes for glibc,
and were recently added by comments from Helge and Willy.

- Implement make/swap/set/get/context() calls in glibc
        = Don't know what's needed... can probably learn
        = about the calls from other arches.
        - Doesn't look like it will be that hard.
        - Helge brought the issue up since SAPDB relies
        - on this to work properly (www.sapdb.org)
	- With mcontext working properly... these calls
	- _should_ work :}
	* Didn't know these were broken or missing.

- Make atomic ops atomic
        = Need to implement exhcange_and_add/atomic_add
        = and compare_and_swap.
        - I have no idea how hard this will be.
        - PA has a single atomic operation called ldcw
        - Which is 'load and zero' ... we currently use
        - this to implement locking primities.
        * Are we going to have to use spinlocks to
        * handle the atomic operations?
	* I see 11 uses of generic/atomicity.h that need
	* to be fixed.

Cheers,
Carlos.



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> 3- sizeof(long double) is incorrect in gcc and glibc (?)

This also needs to be fixed under 64-bit hpux.  Need to determine
the calling convention for long doubles.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Christian Schmitt <chris.81@gmx.de>
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Subject: [parisc-linux] Harmony on 710 working?
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Hi,

I recently downloaded and compiled the latest pa-kernel. I also included harmony 
sound support and now I would like to know if and how I can access the sound 
device. Serching on the web was no success.

Chris

-- 
Linux - Cause life is too short for reboots



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Subject: Re: [parisc-linux] Harmony on 710 working?
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On Wednesday 28 August 2002 16:34, Christian Schmitt wrote:
> I recently downloaded and compiled the latest pa-kernel. I also included
> harmony sound support and now I would like to know if and how I can access
> the sound device. Serching on the web was no success.

insmod harmony
aumix
mpg123 <your-favorite-mp3-file>

Greetings,
Helge


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This is a multi-part message in MIME format.
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Hi there,

I found a HP memory card on ebay with over 500 MB RAM . Modelnumber 
is A1703-60031 A-3140. Can I use it with  my 715/100? And where do I 
find more Information about this card.

R.

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From: Juergen Braukmann <juergen.braukmann@ruhr-west.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Harmony on 710 working?
Date: Wed, 28 Aug 2002 22:20:15 +0200 (CEST)
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Xref: news.gmane.org gmane.linux.ports.parisc:15924

Hi Christian,
at least I got the Harmony driver working on my c110. I used the Kernel
driver first, but found out that kmixer wasn't working (obviously expected
alsa)
I could however cat *.au files to /dev/audio making a lot of sound. After
that, I compiled the alsa stuff -there are two sets of drivers, but one
didn't work as expected. I cannot look things up, currently I am on
holliday in Ireland.. You need to insmod the driver as far as I remember.
I'll be able to tell you more after the linux beer hike... ;-)

cheers

Juergen


===========================================     __   _
Juergen Braukmann juergen.braukmann@gmx.de| -o)/ /  (_)__  __ ____  __
Tel: 0201-743648  dk4jb@db0qs.#nrw.deu.eu | /\\ /__/ / _ \/ // /\ \/ /
===========================================_\_v __/_/_//_/\_,_/ /_/\_\

On Wed, 28 Aug 2002, Christian Schmitt wrote:

> Hi,
>
> I recently downloaded and compiled the latest pa-kernel. I also included harmony
> sound support and now I would like to know if and how I can access the sound
> device. Serching on the web was no success.
>
> Chris
>
> --
> Linux - Cause life is too short for reboots
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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From: "Matias A. Vidal Pereyra" <matias.vidal.pereyra@non.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Memory card
Date: 28 Aug 2002 17:26:44 -0300
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Xref: news.gmane.org gmane.linux.ports.parisc:15925

Well this memory card (A1703-60031)  is for the Nova class (G, H, etc )
servers. It's usless for a 712 workstation.

keep looking ;)
=20
On mi=E9, 2002-08-28 at 17:05, R=FCdiger Scholz wrote:
> Hi there,
>=20
> I found a HP memory card on ebay with over 500 MB RAM . Modelnumber=20
> is A1703-60031 A-3140. Can I use it with  my 715/100? And where do I=20
> find more Information about this card.
>=20
> R.
--=20
=20
  ****** _/      *******        Mat=EDas A. Vidal Pereyra=20
 *****  _/         ******       matias.vidal.pereyra@non.hp.com
 ****  _/_/_/ _/_/_/ ****       tel: +54 (11)4778-8336=20
 **** _/  _/ _/  _/  ****       Telnet: 787-8336=20
 ****_/  _/ _/_/_/  *****       On Site Support - hp9000=20
 ******   _/      *******       HP Argentina.=20
  ****** _/      ******* =20

        i n v e n t



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Am 28.08.2002 um 22:05:21 +0200 schrieb R?diger Scholz folgendes:
> Hi there,
> 
> I found a HP memory card on ebay with over 500 MB RAM . Modelnumber 
> is A1703-60031 A-3140. Can I use it with  my 715/100? And where do I 
> find more Information about this card.

I'd say this module is for a 735/99

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Backups?  We doan *NEED* no steenking baX%^~,VbKx    NO CARRIER



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Hello,

while I can't get X on my C200 to support the graphics card, how about
using an X-Terminal via Ethernet?

Where can I get hints on how to configure this, and

does anybody know a good X-Window-Terminal software for MS Windows?

Cheers,
Tobias

-----------------------
Tobias Giesen, Composer
Developer of TGTools
www.tobiasgiesen.de
www.tgtools.com
-----------------------




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Cygwin with XFree86 4.x support! As a demo I ran KDE under Win98 on
cygwin. Slow, but it worked.

The twm is rather speedy.=20


http://www.cygwin.com

On Wed, 2002-08-28 at 20:48, Tobias Giesen wrote:
> Hello,
>=20
> while I can't get X on my C200 to support the graphics card, how about
> using an X-Terminal via Ethernet?
>=20
> Where can I get hints on how to configure this, and
>=20
> does anybody know a good X-Window-Terminal software for MS Windows?
>=20
> Cheers,
> Tobias
>=20
> -----------------------
> Tobias Giesen, Composer
> Developer of TGTools
> www.tobiasgiesen.de
> www.tgtools.com
> -----------------------
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
--=20
James P. Kinney III   \Changing the mobile computing world/
President and CEO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint =3D 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7=20



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From: "B. Douglas Hilton" <bdhilton@charter.net>
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I agree. Cygwin with XFree86 has got to be the ultimate,
heck you should always have Cygwin anyways on any Windoze
box IMHO, and XFree86 wasn't a big deal to install the
last time I tried it. You should be able to use the
xterm to telnet or rlogin to the hppa box and then an

$ export DISPLAY=###.###.###.###:0
$ mozilla &

Should work most excellently, although I have run into
some difficulties running X apps remotely a while back
with Debian, something seemed messed up with my security
settings and the Debian box wasn't allowing apps to run
remotely. Haven't tried it in a while so I dunno if it
has been fixed or is some config problem on my side.

Voodoo2 Update - been real busy and real tired, no time
to screw with it right now. Probably will hack on it
this weekend.

- Doug




James P. Kinney III wrote:
> Cygwin with XFree86 4.x support! As a demo I ran KDE under Win98 on
> cygwin. Slow, but it worked.
> 
> The twm is rather speedy. 
> 
> 
> http://www.cygwin.com
> 
> On Wed, 2002-08-28 at 20:48, Tobias Giesen wrote:
> 
>>Hello,
>>
>>while I can't get X on my C200 to support the graphics card, how about
>>using an X-Terminal via Ethernet?
>>
>>Where can I get hints on how to configure this, and
>>
>>does anybody know a good X-Window-Terminal software for MS Windows?
>>
>>Cheers,
>>Tobias





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On Wed, Aug 28, 2002 at 10:20:15PM +0200, Juergen Braukmann wrote:
> 
> Hi Christian,
> at least I got the Harmony driver working on my c110. I used the Kernel
> driver first, but found out that kmixer wasn't working (obviously expected
> alsa)

A great many Linux sound programs seem to assume that the machine is
little-endian and don't work on HP IME. mpg321 seems OK to me as is sox but
anything more serious (particularly on the recording side) tends to have
problems.

Maybe I should file some bugs in the Debian BTS.
-- 

patrick



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Subject: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
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Hi all,

I need to go back to kernel 2.4.18-pa61 and evms-1.0.1 (see problem in ml:
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-August/017368.html
with last 1.1.0 evsm release)

Kernel build and operate correctly. I so recompile tools with -ggdb gcc
option.
Then I use ddd to try to debug problem.

So I first run without break and got from console:
evms_vgscan(7998): unaligned access to 0x0002aaae at ip=0x4020a0e3

So I put a break early in main (Ok), relaunch run and try now to insert
a breack in gdb window:
b *0x4020a0e3

Accepted but when 'continue' is launch:
warning: Cannot insert breakpoint 2:
Cannot access memory at address 0x4020a0e3

What do I wrong or what should I better do?

Thanks in advance for help,
    Joel




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Xref: news.gmane.org gmane.linux.ports.parisc:15932

Hey,

I am lucky.

A ^C during a run and I got:
^C
Program received signal SIGINT, Interrupt.
0x4020a0e4 in isa_null_partition_record (p=0x3fe0ff) at checks.c:65
/usr/src/EVMS/evms-1.0.1/engine/Plugins/defsegmgr/checks.c:65:1603:beg:0x4020a0e4

where I find:
     60 BOOLEAN isa_null_partition_record(struct partition *p)
     61 {
     62     int          i;
     63     u_int32_t   *uip = (u_int32_t *) p;
     64
     65     for (i=0; i<4; i++) {
     66         if (*uip!=0x00) return FALSE;
     67     }
     68
     69     return TRUE;
     70 }

So am I right to suspect "u_int32_t   *uip = (u_int32_t *) p;" being the
actual cause of 'unaligned access' problem?

Thanks in advance for additionnal comments,
  Joel

>-- Original Message --
>From: jsoe0708@tiscali.be
>To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
>Date: Thu, 29 Aug 2002 11:22:45 +0200
>
>
>Hi all,
>
>I need to go back to kernel 2.4.18-pa61 and evms-1.0.1 (see problem in ml:
>http://lists.parisc-linux.org/pipermail/parisc-linux/2002-August/017368.html
>with last 1.1.0 evsm release)
>
>Kernel build and operate correctly. I so recompile tools with -ggdb gcc
>option.
>Then I use ddd to try to debug problem.
>
>So I first run without break and got from console:
>evms_vgscan(7998): unaligned access to 0x0002aaae at ip=0x4020a0e3
>
>So I put a break early in main (Ok), relaunch run and try now to insert
>a breack in gdb window:
>b *0x4020a0e3
>
>Accepted but when 'continue' is launch:
>warning: Cannot insert breakpoint 2:
>Cannot access memory at address 0x4020a0e3
>
>What do I wrong or what should I better do?
>
>Thanks in advance for help,
>    Joel
>
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Joel,

> I need to go back to kernel 2.4.18-pa61 and evms-1.0.1 (see problem in ml:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2002-August/017368.html
> with last 1.1.0 evsm release)

Why do you need to regress versions?
 
> Kernel build and operate correctly. I so recompile tools with -ggdb gcc
> option. Then I use ddd to try to debug problem.

What did you recompile with "-g"?

> So I first run without break and got from console:
> evms_vgscan(7998): unaligned access to 0x0002aaae at ip=0x4020a0e3

The unaligned handler took care of it, everything should still
be okay.

> Accepted but when 'continue' is launch:
> warning: Cannot insert breakpoint 2:
> Cannot access memory at address 0x4020a0e3
> What do I wrong or what should I better do?

AFAIK we are using software breakpoints in gdb, which means that
at certain times we _can't_ insert a breakpoint. 

I'm still unclear about the issues here. What's wrong with evms?
It dies from a SIGBUS (unaligned handler failed)? SIGSEGV? 
Operates incorrectly?

c.
 


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Hi Carlos,

>
>Joel,
>
>> I need to go back to kernel 2.4.18-pa61 and evms-1.0.1 (see problem in
>ml:
>> http://lists.parisc-linux.org/pipermail/parisc-linux/2002-August/017368.html
>> with last 1.1.0 evsm release)
>
>Why do you need to regress versions?
Because:
"To investigate in more details the 'unalign access' problem I met with
evms,
I need first to upgrade to evms-1.1.0 with kernel 2.4.19.

After this upgrade, all evms tools failled and I got folowing kernel message
at the console:
kernel BUG at blkpg.c:252!
evms: ldev_mgr: error(-28): creating logical disk for device(8,0)."

The willy answer:
"Aw, crap.  It now seems to be `legal' to put_user a 64-bit argument on
a
32-bit system.  Someone needs to fix this in include/asm-parisc/uaccess.h"

But I am not able ($&##?? asm) to do.

>
>> Kernel build and operate correctly. I so recompile tools with -ggdb gcc
>> option. Then I use ddd to try to debug problem.
>
>What did you recompile with "-g"?

All evms tools and libs (from tarball the 'configure' the -g is a default,
I just add gdb)

>
>> So I first run without break and got from console:
>> evms_vgscan(7998): unaligned access to 0x0002aaae at ip=0x4020a0e3
>
>The unaligned handler took care of it, everything should still
>be okay.
>
>> Accepted but when 'continue' is launch:
>> warning: Cannot insert breakpoint 2:
>> Cannot access memory at address 0x4020a0e3
>> What do I wrong or what should I better do?
>
>AFAIK we are using software breakpoints in gdb, which means that
>at certain times we _can't_ insert a breakpoint.
>
>I'm still unclear about the issues here. What's wrong with evms?
>It dies from a SIGBUS (unaligned handler failed)? SIGSEGV?
>Operates incorrectly?

First of all I would like to be sure it is absolutley harmless.
Secondly it also seems (to be verify [*]) to awfully slowing down evms management
tools.
Thanks for your attention,
    Joel

PS: [*] another lvm tool is the Sistina release which did not present this
kind of 'unaligne access' and has a behaviour nearly the same as on my i386
box on which I also test the two tools.



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> So I put a break early in main (Ok), relaunch run and try now to insert
> a breack in gdb window:
> b *0x4020a0e3
> 
> Accepted but when 'continue' is launch:
> warning: Cannot insert breakpoint 2:
> Cannot access memory at address 0x4020a0e3
> 
> What do I wrong or what should I better do?

Nothing.  You tried to set a break in a share library that hasn't been
loaded.  I don't have a great solution but the following should work.
Export LD_BIND_NOW so that ld.so binds symbols at program startup.  Then,
put a break on main and start the program.  You should then be able to
set a break in a shared library or enable it if the above error occurred.
For example, when you hit the break at main,

  enable 2

should insert the above.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> So am I right to suspect "u_int32_t   *uip = (u_int32_t *) p;" being the
> actual cause of 'unaligned access' problem?

Yes, if p is not aligned, a trap will occur.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Well it does not seems to be the right place of the problem :(

I try to reproduce with the following simple C example:
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

typedef u_int8_t  BOOLEAN;

#ifndef TRUE
  #define TRUE  1
#endif
#ifndef FALSE
  #define FALSE 0
#endif

struct partition {
    unsigned char boot_ind;     /* 0x80 - active */
    unsigned char head;     /* starting head */
    unsigned char sector;       /* starting sector */
    unsigned char cyl;      /* starting cylinder */
    unsigned char sys_ind;      /* What partition type */
    unsigned char end_head;     /* end head */
    unsigned char end_sector;   /* end sector */
    unsigned char end_cyl;      /* end cylinder */
    unsigned int start_sect;    /* starting sector counting from 0 */
    unsigned int nr_sects;      /* nr of sectors in partition */
};

BOOLEAN isa_null_partition_record(struct partition *p)
{
    int          i;
    u_int32_t   *uip = (u_int32_t *) p;

    for (i=0; i<4; i++) {
        if (*uip!=0x00) return FALSE;
    }

    return TRUE;
}

int main(int argc, char * * argv, char * * env) {

    struct partition p1, p2;

    p1.boot_ind=0;
    p1.head=0;
    p1.sector=0;
    p1.cyl=0;
    p1.sys_ind=0;
    p1.end_head=0;
    p1.end_sector=0;
    p1.end_cyl=0;
    p1.start_sect=0;
    p1.nr_sects=0;
 
    printf("Is that p1 is a null partition: %u\n", isa_null_partition_record(&p1));

    p2.boot_ind=1;
    p2.head=2;
    p2.sector=3;
    p2.cyl=4;
    p2.sys_ind=5;
    p2.end_head=6;
    p2.end_sector=7;
    p2.end_cyl=8;
    p2.start_sect=9;
    p2.nr_sects=10;
 
    printf("Is that p2 is a null partition: %u\n", isa_null_partition_record(&p2));
    return 0;
}

and compile with same gcc option (i.e. gcc -ggdb -O2 -Wall -fPIC ) and the
problem is not reproduced?

Any idea?

Thanks in advance for additional advise,
    Joel

>-- Original Message --
>From: jsoe0708@tiscali.be
>Subject: RE: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
>To: parisc-linux@lists.parisc-linux.org
>Date: Thu, 29 Aug 2002 11:51:36 +0200
>
>
>Hey,
>
>I am lucky.
>
>A ^C during a run and I got:
>^C
>Program received signal SIGINT, Interrupt.
>0x4020a0e4 in isa_null_partition_record (p=0x3fe0ff) at checks.c:65
>/usr/src/EVMS/evms-1.0.1/engine/Plugins/defsegmgr/checks.c:65:1603:beg:0x4020a0e4
>
>where I find:
>     60 BOOLEAN isa_null_partition_record(struct partition *p)
>     61 {
>     62     int          i;
>     63     u_int32_t   *uip = (u_int32_t *) p;
>     64
>     65     for (i=0; i<4; i++) {
>     66         if (*uip!=0x00) return FALSE;
>     67     }
>     68
>     69     return TRUE;
>     70 }
>
>So am I right to suspect "u_int32_t   *uip = (u_int32_t *) p;" being the
>actual cause of 'unaligned access' problem?
>
>Thanks in advance for additionnal comments,
>  Joel
>
>>-- Original Message --
>>From: jsoe0708@tiscali.be
>>To: parisc-linux@lists.parisc-linux.org
>>Subject: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
>>Date: Thu, 29 Aug 2002 11:22:45 +0200
>>
>>
>>Hi all,
>>
>>I need to go back to kernel 2.4.18-pa61 and evms-1.0.1 (see problem in
ml:
>>http://lists.parisc-linux.org/pipermail/parisc-linux/2002-August/017368.html
>>with last 1.1.0 evsm release)
>>
>>Kernel build and operate correctly. I so recompile tools with -ggdb gcc
>>option.
>>Then I use ddd to try to debug problem.
>>
>>So I first run without break and got from console:
>>evms_vgscan(7998): unaligned access to 0x0002aaae at ip=0x4020a0e3
>>
>>So I put a break early in main (Ok), relaunch run and try now to insert
>>a breack in gdb window:
>>b *0x4020a0e3
>>
>>Accepted but when 'continue' is launch:
>>warning: Cannot insert breakpoint 2:
>>Cannot access memory at address 0x4020a0e3
>>
>>What do I wrong or what should I better do?
>>
>>Thanks in advance for help,
>>    Joel
>>
>>
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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> >Program received signal SIGINT, Interrupt.
> >0x4020a0e4 in isa_null_partition_record (p=0x3fe0ff) at checks.c:65

You can see from the value of p above that it is not properly aligned
for a 4 byte access.  Put a break on isa_null_partition_record and

cond n p==0x3fe0ff

where n is the breakpoint number of the break at isa_null_partition_record.
Then, run the program and it should stop at isa_null_partition_record
when the fault is about to occur.  You will then have to do a bt to
determine why p is incorrectly aligned (last hex digit should be 0,
4, 8 or c).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] Harmony on 710 working?
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Helge Deller wrote:
> On Wednesday 28 August 2002 16:34, Christian Schmitt wrote:
> 
>>I recently downloaded and compiled the latest pa-kernel. I also included
>>harmony sound support and now I would like to know if and how I can access
>>the sound device. Serching on the web was no success.
> 
> 
> insmod harmony
> aumix
> mpg123 <your-favorite-mp3-file>
> 

I recompiled the kernel with harmony as a module. I get unresolved symbols when 
loading the harmony driver:

ccio_get_fake

Any suggestions?

Chris


-- 
Linux - Cause life is too short for reboots




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Subject: [parisc-linux] GNOME 1.4
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I finally got GNOME 1.4 working on a 712/60, after many tries and a
newer ISO image of palinux-2.4.18-pa60-20020802-netinst.iso.

I used tasksel to select a workstation with:  "X window system,
desktop system, games and conventional unix server" any other
combinations would over fill my 1GB hard disk drive, or other attempts
that would fit in the drive, GNOME failed on startup and be broken.

Its pretty, but slow .   .  . .



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Subject: Re: [parisc-linux] Harmony on 710 working?
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I have a theory on this .... but will probably be dis-reguarded by
someone more knowledgable :)

I will try to explain what I believe the problem is, and provid a
quick hack/work around for you to get it working.


First can you tell me if CONFIG_IOMMU_CCIO is defined in your
kernel as this will affect my answer.

My suspicion is that it is not defined, thus my answer makes
this assumption.


Problem:
	The CONFIG_IOMMU_CCIO is not defined in your kernel,
	so the ccio_get_fake() is defined to be NULL in
	include/asm-parisc/pci.h.  This usually works fine
	if the drivers are compiled into the kernel ... but
	you are loading this as a module....  My suspicion is
	that the harmony module is trying to find the 
	ccio_get_fake() entry point and your kernel does not
	export that function. (CONFIG_IOMMU_CCIO is not 
	defined).

	What confuses my about this problem is why ccio_get_fake()
	is not defined to NULL by include/asm-parisc/pci.h.  Is
	there a mis-match between your kernel and module CONFIG_*
	options?


Solution:
	Since the 710 does not have ccio, the cico_get_fake() 
	is not needed. The ccio_get_fake() only needed for ccio
	machines on busses below the ccio that are not PCI (ie,
	PIC, GSC).  So for you temp hack, just assign
	harmony.fake_pci_dev to NULL.  Once we have a better
	picture of what is happening, we will insert a better
	fix if appropriate :)

Thanks,

- Ryan

	
On Thu, 2002-08-29 at 07:45, Christian Schmitt wrote:
> Helge Deller wrote:
> > On Wednesday 28 August 2002 16:34, Christian Schmitt wrote:
> > 
> >>I recently downloaded and compiled the latest pa-kernel. I also included
> >>harmony sound support and now I would like to know if and how I can access
> >>the sound device. Serching on the web was no success.
> > 
> > 
> > insmod harmony
> > aumix
> > mpg123 <your-favorite-mp3-file>
> > 
> 
> I recompiled the kernel with harmony as a module. I get unresolved symbols when 
> loading the harmony driver:
> 
> ccio_get_fake
> 
> Any suggestions?
> 
> Chris
> 
> 
> -- 
> Linux - Cause life is too short for reboots
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Harmony on 710 working?
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Christian Schmitt wrote:
> ccio_get_fake
> 
> Any suggestions?

harmony.c needs to include pci.h :^(

./include/asm-parisc/pci.h:#define ccio_get_fake(dev) NULL

that's where the pci_dma_xxx interface definitions live.
Or those definitions need to move to a seperate file that
harmony.c and pci.h can include. Maybe create a pci-dma.h?

helge, rbrad, willy?

grant


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Subject: Re: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
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>-- Original Message --
>Subject: Re: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
>To: jsoe0708@tiscali.be
>From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>Cc: parisc-linux@lists.parisc-linux.org
>Date: Thu, 29 Aug 2002 10:28:48 -0400 (EDT)
>
>
>> >Program received signal SIGINT, Interrupt.
>> >0x4020a0e4 in isa_null_partition_record (p=0x3fe0ff) at checks.c:65
>
>You can see from the value of p above that it is not properly aligned
>for a 4 byte access.  Put a break on isa_null_partition_record and
>
>cond n p==0x3fe0ff
>
>where n is the breakpoint number of the break at isa_null_partition_record.

As previously, I could not put a break at isa_null_partition_record (function
not define but with ^C I reach to stop recursively in this function and so
for example with p==0x26ece I got p.boot_ind=0 ; p.head=63 ; p.sector=224
; p.cyl=255; ...

p is of type partition define as follow:
struct partition {
    unsigned char boot_ind;     /* 0x80 - active */
    unsigned char head;     /* starting head */
    unsigned char sector;       /* starting sector */
    unsigned char cyl;      /* starting cylinder */
    unsigned char sys_ind;      /* What partition type */
    unsigned char end_head;     /* end head */
    unsigned char end_sector;   /* end sector */
    unsigned char end_cyl;      /* end cylinder */
    unsigned int start_sect;    /* starting sector counting from 0 */
    unsigned int nr_sects;      /* nr of sectors in partition */
};

So anyway there is a bug because I presume that the for loop is there to
scan the 4 int what it doen't do (?) and find another way to say an 'int'
is null ( hmm why not simply 
u_int8_t *uip = (u_int8_t *)p;
for (i=0 ; i<16 ; i++){
    if (*uip+i != 0x00) return FALSE;
}
return TRUE;

what do you think?


>Then, run the program and it should stop at isa_null_partition_record
>when the fault is about to occur.  You will then have to do a bt to
>determine why p is incorrectly aligned (last hex digit should be 0,
>4, 8 or c).

Many thanks,
    Joel



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Harmony on 710 working?
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Ryan Bradetich wrote:
> 	What confuses my about this problem is why ccio_get_fake()
> 	is not defined to NULL by include/asm-parisc/pci.h.  Is
> 	there a mis-match between your kernel and module CONFIG_*
> 	options?

I think this is right. I overlooked that pci.h was getting
included...even though we should move pci_dma* to a different
file like I suggested.

grant


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Subject: Re: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
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> p is of type partition define as follow:
> struct partition {
>     unsigned char boot_ind;     /* 0x80 - active */
>     unsigned char head;     /* starting head */
>     unsigned char sector;       /* starting sector */
>     unsigned char cyl;      /* starting cylinder */
>     unsigned char sys_ind;      /* What partition type */
>     unsigned char end_head;     /* end head */
>     unsigned char end_sector;   /* end sector */
>     unsigned char end_cyl;      /* end cylinder */
>     unsigned int start_sect;    /* starting sector counting from 0 */
>     unsigned int nr_sects;      /* nr of sectors in partition */
> };

The problem is that a struct of the above type is being allocated
at an unaligned address.  That's not normal.  The cast isn't the
problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
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>
>So anyway there is a bug because I presume that the for loop is there to
>scan the 4 int what it doen't do (?) and find another way to say an 'int'
>is null ( hmm why not simply 
>u_int8_t *uip = (u_int8_t *)p;
>for (i=0 ; i<16 ; i++){
>    if (*uip+i != 0x00) return FALSE;
>}
>return TRUE;
>
Quick test and yes that works (reduce response time 1/10).

Anyway all better idea is well come :)

Thanks a lot,
    Joel




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Subject: Re: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
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jsoe0708@tiscali.be wrote:
> >for (i=0 ; i<16 ; i++){
> >    if (*uip+i != 0x00) return FALSE;
> >}
> >return TRUE;
> >
> Quick test and yes that works (reduce response time 1/10).

You've avoided the first visible symptom but not solved the problem.
The next reference to the int embedded in the struct will cause
an unaligned access fault.

grant


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Subject: Re: [parisc-linux] Harmony on 710 working?
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Ryan Bradetich wrote:
> I have a theory on this .... but will probably be dis-reguarded by
> someone more knowledgable :)
> 
> I will try to explain what I believe the problem is, and provid a
> quick hack/work around for you to get it working.
> 
> 
> First can you tell me if CONFIG_IOMMU_CCIO is defined in your
> kernel as this will affect my answer.
> 


Hello,

CONFIG_IOMMU_CCIO is set to "y" in the kernel config. I set it to "n", 
recompiled the modules and "modprobe harmony" works.
However, aumix doesn't find a mixer device. Is there any way to find out where 
the problem is?



-- 
Linux - Cause life is too short for reboots



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You should not have to compile the modules differently then from the
kernel.  What happens when you compile both the kernel and modules
with CONFIG_IOMMU_CCIO=y?

[Note: The ccio_get_fake will return the appropriate NULL if your
system does not have any ccio devices.]

Sorry, I don't know anything about aumix.   Do you have a /dev/mixer?
sane permissions? etc?

Thanks,

- Ryan


On Thu, 2002-08-29 at 12:22, Christian Schmitt wrote:
> Ryan Bradetich wrote:
> > I have a theory on this .... but will probably be dis-reguarded by
> > someone more knowledgable :)
> > 
> > I will try to explain what I believe the problem is, and provid a
> > quick hack/work around for you to get it working.
> > 
> > 
> > First can you tell me if CONFIG_IOMMU_CCIO is defined in your
> > kernel as this will affect my answer.
> > 
> 
> 
> Hello,
> 
> CONFIG_IOMMU_CCIO is set to "y" in the kernel config. I set it to "n", 
> recompiled the modules and "modprobe harmony" works.
> However, aumix doesn't find a mixer device. Is there any way to find out where 
> the problem is?
> 
> 
> 
> -- 
> Linux - Cause life is too short for reboots
> 
> 




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Date: 29 Aug 2002 12:45:13 -0600
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As a side note (and interesting test) this should work properly when
bot the kernel and modules are compiled with CONFIG_IOMMU_CCIO not
set either.

I believe the problem you are seeing is when the kernel is compiled
with CONFIG_IOMMU_CCIO is not set, and the modules are compiled with
CONFIG_IOMMU_CCIO=y.

- Ryan

On Thu, 2002-08-29 at 12:38, Ryan Bradetich wrote:
> You should not have to compile the modules differently then from the
> kernel.  What happens when you compile both the kernel and modules
> with CONFIG_IOMMU_CCIO=y?
> 
> [Note: The ccio_get_fake will return the appropriate NULL if your
> system does not have any ccio devices.]
> 
> Sorry, I don't know anything about aumix.   Do you have a /dev/mixer?
> sane permissions? etc?
> 
> Thanks,
> 
> - Ryan
> 
> 
> On Thu, 2002-08-29 at 12:22, Christian Schmitt wrote:
> > Ryan Bradetich wrote:
> > > I have a theory on this .... but will probably be dis-reguarded by
> > > someone more knowledgable :)
> > > 
> > > I will try to explain what I believe the problem is, and provid a
> > > quick hack/work around for you to get it working.
> > > 
> > > 
> > > First can you tell me if CONFIG_IOMMU_CCIO is defined in your
> > > kernel as this will affect my answer.
> > > 
> > 
> > 
> > Hello,
> > 
> > CONFIG_IOMMU_CCIO is set to "y" in the kernel config. I set it to "n", 
> > recompiled the modules and "modprobe harmony" works.
> > However, aumix doesn't find a mixer device. Is there any way to find out where 
> > the problem is?
> > 
> > 
> > 
> > -- 
> > Linux - Cause life is too short for reboots
> > 
> > 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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(Message inbox:75808)
Date:    Thu, 29 Aug 2002 20:22:23 +0200
To:      Ryan Bradetich <rbradetich@uswest.net>,
	 parisc-linux@lists.parisc-linux.org
Reply-To: christian@familieschmitt.de
Return-Path: parisc-linux-admin@lists.parisc-linux.org Thu
>From:    Christian Schmitt <chris.81@gmx.de>
Subject: Re: [parisc-linux] Harmony on 710 working?

Oops, I guess I missed that the model in question was a 710. 710's don't
have harmony audio. 705's & 710's have a different codec (Siemens PSB
2160) that is only capable of "telephone quality" audio, i.e. mono, fixed
8 Khz sampling rate.  There is currently no driver for this hardware.

FYI, The 720, 725, 730, 735, 750 & 755 don't have any kind of audio (although
there is a graphics card with onboard CD quality audio that was made for the
715s and 715t models that can also be put into these machines).

The 705, & 710 have the Siemens codec. The 715 is the first model with
"CD" quality audio.

John Marvin
jsm@fc.hp.com


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* Steve.Grady@csiro.au (Steve.Grady@csiro.au) wrote:


 
> BTW Thanks for a great port my little 735 just sits there and works (mostly
> running SETI)

Hehe.. my 715/64 does the same.. mind you it's also my web server too.
But mostly the only "real" work it does is seti. :)


Regards,

Pete.

-- 
				Due to a lack of imagination, 
				this signature will remain 
				under construction indefinitely.


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alaskan@telusplanet.net wrote:
> I finally got GNOME 1.4 working on a 712/60,
...
> Its pretty, but slow .   .  . .

it's not faster on a 486/DX4/75Mhz.
You really need to use a lighter weight window manager on
the older boxes. fvwm2 is my current favorite though in this
case I'd reccomend twm.

grant


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>-- Original Message --
>Subject: Re: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
>To: jsoe0708@tiscali.be
>From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>Cc: parisc-linux@lists.parisc-linux.org
>Date: Thu, 29 Aug 2002 13:10:49 -0400 (EDT)
>
>
>> p is of type partition define as follow:
>> struct partition {
>>     unsigned char boot_ind;     /* 0x80 - active */
>>     unsigned char head;     /* starting head */
>>     unsigned char sector;       /* starting sector */
>>     unsigned char cyl;      /* starting cylinder */
>>     unsigned char sys_ind;      /* What partition type */
>>     unsigned char end_head;     /* end head */
>>     unsigned char end_sector;   /* end sector */
>>     unsigned char end_cyl;      /* end cylinder */
>>     unsigned int start_sect;    /* starting sector counting from 0 */
>>     unsigned int nr_sects;      /* nr of sectors in partition */
>> };
>
>The problem is that a struct of the above type is being allocated
>at an unaligned address.

Sorry I do not understand, can you tell me more or where can I found additional
 explanation?

>  That's not normal.  The cast isn't the
>problem.
>

Thanks in advance,
    Joel



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>-- Original Message --
>To: jsoe0708@tiscali.be
>Cc: "John David Anglin" <dave@hiauly1.hia.nrc.ca>,
>	parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
>
>Date: Thu, 29 Aug 2002 12:11:48 -0600
>From: Grant Grundler <grundler@dsl2.external.hp.com>
>
>
>jsoe0708@tiscali.be wrote:
>> >for (i=0 ; i<16 ; i++){
>> >    if (*uip+i != 0x00) return FALSE;
>> >}
>> >return TRUE;
>> >
>> Quick test and yes that works (reduce response time 1/10).
>
>You've avoided the first visible symptom but not solved the problem.
>The next reference to the int embedded in the struct will cause
>an unaligned access fault.
>

Ah ok but where is located the actual problem (gcc, ld, kernel ?).
I am not a computer science engineer and have not enough knowledge to understand
this problem of unalign access and unalign adress. Can you give me some source
of information explaining that stuff?

Thanks for adivises,
    Joel



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>-- Original Message --
>To: alaskan@telusplanet.net
>Cc: parisc-linux@lists.parisc-linux.org, debian-hppa@lists.debian.org
>Subject: Re: [parisc-linux] GNOME 1.4 
>From: Grant Grundler <grundler@dsl2.external.hp.com>
>Date: Thu, 29 Aug 2002 22:08:29 -0600
>
>
>alaskan@telusplanet.net wrote:
>> I finally got GNOME 1.4 working on a 712/60,
>...
>> Its pretty, but slow .   .  . .
>
>it's not faster on a 486/DX4/75Mhz.
>You really need to use a lighter weight window manager on
>the older boxes. fvwm2 is my current favorite though in this
>case I'd reccomend twm.
>
I also appreciate xfce. Just need more than 8 colors but I read Alan Cox
mail about hp dither CR technic but do not really how to use this material.
I some one has already some draft code?

Cheers,
    Joel




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Subject: Re: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
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jsoe0708@tiscali.be wrote:
> Ah ok but where is located the actual problem (gcc, ld, kernel ?).

the program.

> I am not a computer science engineer and have not enough knowledge
> to understand this problem of unalign access and unalign adress.
> Can you give me some source of information explaining that stuff?

Details for parisc:
	"PA-RISC 2.0 Architecture" by Jerry Kane.
	page 5-11, "Unaligned Data Reference Trap (28)"
	page 7-84, "Load Word"

heh...doesn't define "aligned address" in the Glossary.
The same stuff is in the PA 1.1 Arch books too.

"aligned" means the address of the data falls on a boundary
that is modulo the size of the data. It's more complicated
for a "struct" but the rule applies to any field in a struct.

Examples:
	0x10 is an aligned address for an "int"
	0x12 is an aligned address for a "short" but not an "int".

Got it?

BTW, even though x86 CPUs don't trap on unaligned access,
they do take a performance hit. IIRC, it's one additional cycle.
Under linux, most (all?) RISC CPUs trap and handle the unaligned access
in the kernel trap handler. Other OS's could SIGBUS the application
to kill it.

Hmm...this is interesting:
/usr/include/linux/prctl.h:# define PR_UNALIGN_SIGBUS   2       /* generate SIGBUS on unaligned user access */

Maybe you can figure out how to set this and dig through the
core file instead of trying to set break points.

grant


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On Thu, 29 Aug 2002 22:08:29 -0600 Grant Grundler <grundler@dsl2.external.hp.com> wrote: 8-  > alaskan@telusplanet.net wrote:
8-  > > I finally got GNOME 1.4 working on a 712/60,
8-  > ...
8-  > > Its pretty, but slow .   .  . .
8-  > 
8-  > it's not faster on a 486/DX4/75Mhz.
8-  > You really need to use a lighter weight window manager on
8-  > the older boxes. fvwm2 is my current favorite though in this
8-  > case I'd reccomend twm.
8-  > 
8-  > grant

Why not IceWM? on my 710/50 it is running pretty fine and enough fast!!! ;-P
I also like the Infadel2-Overloaded theme!!!

linuxabbestia

<<Unix IS user friendly... It's just selective about who its friends are!>>

 See "User's Guide":     http://www.debian.org/doc/manuals/users-guide/
 See "Debian reference": http://www.debian.org/doc/manuals/debian-reference/
 "Debian reference" Project at: http://qref.sf.net

Please DO NOT send e-mail with any attachment in a "proprietary format", such as either .doc or .ppt, BECAUSE: http://www.fsf.org/philosophy/no-word-attachments.html (the Italian version is available on the following url: http://www.fsf.org/philosophy/no-word-attachments.it.html)
T H A N K S   ;-P


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Subject: Re: [parisc-linux] PCI Intel EtherExpressPro100 strangeness on C200 machine.
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Andreas Seltenreich wrote:
> just append " || defined(__hppa__)" to line 47 of drivers/net/eepro100.c
> I got mine working that way.

Andreas,
I've just committed this change to 2.4.19-pa8.
Works on my c3000 too.

I wasn't real happy with this method of disabling something we
know doesn't work. The compiler can't optimize it away.
The alternative I was playing with is at
	ftp://ftp.parisc-linux.org/patches/eepro100-rxcopy.diff

but I'm not comfortable committing that since I don't know if
other arches *can't* support it or just prefer it be disabled.

thanks,
grant


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>-- Original Message --
>To: jsoe0708@tiscali.be
>Cc: "John David Anglin" <dave@hiauly1.hia.nrc.ca>,
>	parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
>
>Date: Fri, 30 Aug 2002 00:30:51 -0600
>From: Grant Grundler <grundler@dsl2.external.hp.com>
>
>
>jsoe0708@tiscali.be wrote:
>> Ah ok but where is located the actual problem (gcc, ld, kernel ?).
>
>the program.
>
>> I am not a computer science engineer and have not enough knowledge
>> to understand this problem of unalign access and unalign adress.
>> Can you give me some source of information explaining that stuff?
>
>Details for parisc:
>	"PA-RISC 2.0 Architecture" by Jerry Kane.
>	page 5-11, "Unaligned Data Reference Trap (28)"
>	page 7-84, "Load Word"
>
>heh...doesn't define "aligned address" in the Glossary.
>The same stuff is in the PA 1.1 Arch books too.
>
>"aligned" means the address of the data falls on a boundary
>that is modulo the size of the data. It's more complicated
>for a "struct" but the rule applies to any field in a struct.
>
>Examples:
>	0x10 is an aligned address for an "int"
>	0x12 is an aligned address for a "short" but not an "int".
>
>Got it?
>
>BTW, even though x86 CPUs don't trap on unaligned access,
>they do take a performance hit. IIRC, it's one additional cycle.
>Under linux, most (all?) RISC CPUs trap and handle the unaligned access
>in the kernel trap handler. Other OS's could SIGBUS the application
>to kill it.
>
Thanks a lot for all info 

>Hmm...this is interesting:
>/usr/include/linux/prctl.h:# define PR_UNALIGN_SIGBUS   2       /* generate
>SIGBUS on unaligned user access */
>
>Maybe you can figure out how to set this and dig through the
>core file instead of trying to set break points.
>
Not sure I will reach but i will have look anyway.

Many thanks again,
    Joel



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On Fri, 2002-08-30 at 05:08, Grant Grundler wrote:
> it's not faster on a 486/DX4/75Mhz.

Gnome2 is alittle faster

> You really need to use a lighter weight window manager on
> the older boxes. fvwm2 is my current favorite though in this
> case I'd reccomend twm.

The setup I use so I get a 'real desktop' not just old style X window
mangler is xfce for the desktop with the rox filer on top for the file
mangler, icon dock etc.

Its snappy in 24Mb. On an FPUless box build xfce with imlib not
gdk_pixbuf.

I'd guess it would be very nice on an ancient parisc box too because
they pa boxes probably have better I/O



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On Fri, 2002-08-30 at 07:02, jsoe0708@tiscali.be wrote:
> I also appreciate xfce. Just need more than 8 colors but I read Alan Cox
> mail about hp dither CR technic but do not really how to use this material.
> I some one has already some draft code?

For 8bit desktops just bang the icons through the pnmtools and quantize
them to 16 colours. I do wish X had an RGB332 'truecolour' some times.

That draft code tells you how to dither your images for the display. As
far as I can make out its primarily aimed at 3D rendering, so you can
have fake high quality 3D images (where 8bit banding _really_ ruins the
display) at lower resolution than your desktop




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>-- Original Message --
>Subject: Re: [parisc-linux] GNOME 1.4
>From: Alan Cox <alan@lxorguk.ukuu.org.uk>
>To: jsoe0708@tiscali.be
>Cc: Grant Grundler <grundler@dsl2.external.hp.com>,
>   parisc-linux@lists.parisc-linux.org
>Date: 30 Aug 2002 12:07:39 +0100
>
>
>On Fri, 2002-08-30 at 07:02, jsoe0708@tiscali.be wrote:
>> I also appreciate xfce. Just need more than 8 colors but I read Alan Cox
>> mail about hp dither CR technic but do not really how to use this material.
>> I some one has already some draft code?
>
>For 8bit desktops just bang the icons through the pnmtools and quantize
>them to 16 colours. I do wish X had an RGB332 'truecolour' some times.
>
>That draft code tells you how to dither your images for the display. As
>far as I can make out its primarily aimed at 3D rendering, so you can
>have fake high quality 3D images (where 8bit banding _really_ ruins the
>display) at lower resolution than your desktop
>
Thanks, I definitely missunderstand the purpose of this code.

My actual question would be how to obtain 128 (and may be more) colors like
CDE or VUE (is X11R6 server like mklinux proposed would help?)


Joel



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> alaskan@telusplanet.net wrote:
> > I finally got GNOME 1.4 working on a 712/60,
> ...
> > Its pretty, but slow .   .  . .
>
> it's not faster on a 486/DX4/75Mhz.
> You really need to use a lighter weight window manager on
> the older boxes. fvwm2 is my current favorite though in this
> case I'd reccomend twm.
>
> grant


windowmaker runs well on my 712/60 - & you can run gnome & kde apps under it

James S





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Subject: Re: [parisc-linux] Harmony on 710 working?
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On Thu, 2002-08-29 at 18:28, John Marvin wrote:
 
> FYI, The 720, 725, 730, 735, 750 & 755 don't have any kind of audio (although
> there is a graphics card with onboard CD quality audio that was made for the
> 715s and 715t models that can also be put into these machines).

A 735/99 I use has audio sufficient to play mp3's at good sound quality
using alsaplayer; I assume this is Harmony hardware.  Not part of a
framebuffer card.

-- SP




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On Fri, Aug 30, 2002 at 12:02:47PM -0400, Steve Pacenka wrote:
> On Thu, 2002-08-29 at 18:28, John Marvin wrote:
>  
> > FYI, The 720, 725, 730, 735, 750 & 755 don't have any kind of audio (although
> > there is a graphics card with onboard CD quality audio that was made for the
> > 715s and 715t models that can also be put into these machines).
> 
> A 735/99 I use has audio sufficient to play mp3's at good sound quality
> using alsaplayer; I assume this is Harmony hardware.  Not part of a
> framebuffer card.

i believe jsm is mistaken about the 735 & 755.  735 used the followon
chip from Asp and would surely have had the same sound abilities as the
715/Scorpio.  the harmony driver should stop claiming the 705/710 audio
though (an easy change to make).

-- 
Revolutions do not require corporate support.


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In-Reply-To: <3D3815BD00009582@ocpmta5.be.tiscali.com> from "jsoe0708@tiscali.be" at Aug 30, 2002 07:46:16 am
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Xref: news.gmane.org gmane.linux.ports.parisc:15967

> >> p is of type partition define as follow:
> >> struct partition {
> >>     unsigned char boot_ind;     /* 0x80 - active */
> >>     unsigned char head;     /* starting head */
> >>     unsigned char sector;       /* starting sector */
> >>     unsigned char cyl;      /* starting cylinder */
> >>     unsigned char sys_ind;      /* What partition type */
> >>     unsigned char end_head;     /* end head */
> >>     unsigned char end_sector;   /* end sector */
> >>     unsigned char end_cyl;      /* end cylinder */
> >>     unsigned int start_sect;    /* starting sector counting from 0 */
> >>     unsigned int nr_sects;      /* nr of sectors in partition */
> >> };
> >
> >The problem is that a struct of the above type is being allocated
> >at an unaligned address.
> 
> Sorry I do not understand, can you tell me more or where can I found additional

You may be able to find a copy of WG14/N869 (Committee Draft -- January 18,
1999) on the web.  It is a draft version of the ISO C standard.  Section
6.7.2.1 describes struct and union types.

In general, the C standard doesn't define the representation used for
objects.  However, the alignment requirement of field members (except
bit fields) is the same as its type when not in a struct or union.
The PA implementation uses a strict "natural" alignment for types.
E.g., 4 byte integers are aligned to 4 byte boundaries.  Multiple
instructions are needed for unaligned data access on the PA.

A pointer to a struct points to the initial member (ie., there is no
padding before the first member).

The above struct starts with an unsigned char type so as far as the
standard goes it could start at any byte.  Note that it contains int
types, so that if it didn't start on a 4 byte boundary, there would
have to be padding after the last char field.  If the struct was given
"char" alignment, then different code would be needed to access members
when it was and wasn't aligned to a 4 byte boundary.  To minimize
problems of this nature, gcc aligns structs based on the largest
alignment requirement of all its members.

The code generated by gcc will not properly access fields of a struct
that isn't properly aligned.  Thus, you will need to try and find
out why in this particular case the struct isn't aligned and correct
the problem.  It might be a malloc problem or data read into an
arbitrary location.

Because the initial field of the struct is an unsigned char type,
the cast to uint32_t is wrong.  The code is making implementation
dependent assumptions.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: grundler <grundler@puffin.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] A  WinXP patch
Date: Fri, 30 Aug 2002 13:20:50 -0500
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<FONT>Hello,This is a  WinXP patch<br>
I expect you would like it.</FONT></BODY></HTML>

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From - Thu Nov 08 21:24:21 2018
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X-Mozilla-Keys:                                                                                 
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From: Grant Grundler <grundler@dsl2.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] A WinXP patch
Date: Fri, 30 Aug 2002 13:04:45 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:15969

grundler wrote:
> <FONT>Hello,This is a  WinXP patch<br>
> I expect you would like it.</FONT></BODY></HTML>

forged email - our trust worthy list admin approved this
spam a second before he realized it.
Save your flames for better causes.

grant


From - Thu Nov 08 21:24:21 2018
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From: Michael Madden <madden@maddentechnologies.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Debian 3.0 on C200
Date: Fri, 30 Aug 2002 17:28:05 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:15970

Hello:

Has anyone gotten X to work with the Debian 3.0 port on a PA-RISC C200 machine? 
I have a C200 that I've installed Debian 3.0 on, but I cannot get X setup 
correctly.

The hardware is:
Main memory size: 768 Mbytes
1  Raven U 200 (9000/780/C200) processor
2 16550A serial ports
1 ethernet interface
  eth0: Digital DS21143 Tulip rev 48
PCI bus devices:
SCSI storage controller: LSI Logic / Symbios Logic (formerly NCR) 53c875 (rev 4).
Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 48).
Display controller: PCI device 103c:1008 (Hewlett-Packard Company) (rev 2).


I am attaching my config and log files if it helps.

Thanks in advance,
Michael

================================================================================

### BEGIN DEBCONF SECTION
# XF86Config-4 (XFree86 server configuration file) generated by dexconf, the
# Debian X Configuration tool, using values from the debconf database.
#
# Edit this file with caution, and see the XF86Config-4 manual page.
# (Type "man XF86Config-4" at the shell prompt.)
#
# If you want your changes to this file preserved by dexconf, only make changes
# before the "### BEGIN DEBCONF SECTION" line above, and/or after the
# "### END DEBCONF SECTION" line below.

Section "Files"
	FontPath	"unix/:7100"			# local font server
	# if the local font server has problems, we can fall back on these
	FontPath	"/usr/lib/X11/fonts/misc"
	FontPath	"/usr/lib/X11/fonts/cyrillic"
	FontPath	"/usr/lib/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/Type1"
	FontPath	"/usr/lib/X11/fonts/Speedo"
	FontPath	"/usr/lib/X11/fonts/100dpi"
	FontPath	"/usr/lib/X11/fonts/75dpi"
EndSection

Section "Module"
	Load	"GLcore"
	Load	"bitmap"
	Load	"dbe"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"pex5"
	Load	"record"
	Load	"speedo"
	Load	"type1"
	Load	"vbe"
	Load	"xie"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"keyboard"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xfree86"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/psaux"
	Option		"Protocol"		"PS/2"
	Option		"Emulate3Buttons"	"true"
	Option		"ZAxisMapping"		"4 5"
EndSection

Section "InputDevice"
	Identifier	"Generic Mouse"
	Driver		"mouse"
	Option		"SendCoreEvents"	"true"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
	Option		"Emulate3Buttons"	"true"
	Option		"ZAxisMapping"		"4 5"
EndSection

Section "Device"
	Identifier	"Generic Video Card"
	Driver		"fbdev"
	Option		"UseFBDev"		"true"
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
#
HorizSync
30-100
	HorizSync	31.5, 48.5
	VertRefresh	50-160
	Option		"DPMS"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Generic Video Card"
	Monitor		"Generic Monitor"
	DefaultDepth	8
	SubSection "Display"
		Depth		1
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1280x1024"
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
	InputDevice	"Generic Mouse"
EndSection

Section "DRI"
	Mode	0666
EndSection

### END DEBCONF SECTION

================================================================================

This is a pre-release version of XFree86, and is not supported in any
way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
please check the latest version in the XFree86 CVS repository
(http://www.XFree86.Org/cvs)

XFree86 Version 4.1.0.1 / X Window System
(protocol Version 11, revision 0, vendor release 6510)
Release Date: 21 December 2001
	If the server is older than 6-12 months, or if your card is
	newer than the above date, look for a newer version before
	reporting problems.  (See http://www.XFree86.Org/FAQ)
Build Operating System: Linux 2.4.16-64 parisc64 [ELF] 
(==) Log file: "/var/log/XFree86.0.log", Time: Fri Aug 30 16:23:17 2002
(==) Using config file: "/etc/X11/XF86Config-4"
Markers: (--) probed, (**) from config file, (==) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) ServerLayout "Default Layout"
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "Generic Monitor"
(**) |   |-->Device "Generic Video Card"
(**) |-->Input Device "Generic Keyboard"
(**) Option "XkbRules" "xfree86"
(**) XKB: rules: "xfree86"
(**) Option "XkbModel" "pc104"
(**) XKB: model: "pc104"
(**) Option "XkbLayout" "us"
(**) XKB: layout: "us"
(==) Keyboard: CustomKeycode disabled
(**) |-->Input Device "Configured Mouse"
(**) |-->Input Device "Generic Mouse"
(WW) The directory "/usr/lib/X11/fonts/cyrillic" does not exist.
	Entry deleted from font path.
(**) FontPath set to "unix/:7100,/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts/100dpi/:unscaled,/usr/lib/X11/fonts/75dpi/:unscaled,/usr/lib/X11/fonts/Type1,/usr/lib/X11/fonts/Speedo,/usr/lib/X11/fonts/100dpi,/usr/lib/X11/fonts/75dpi"
(==) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(++) using VT number 7

(WW) Cannot open APM
(II) PCI: PCI scan (all values are in hex)
(II) PCI: 00:13:0: chip 1000,000f card 0000,0000 rev 04 class 01,00,00 hdr 00
(II) PCI: 00:14:0: chip 1011,0019 card 103c,104f rev 30 class 02,00,00 hdr 00
(II) PCI: 01:04:0: chip 103c,1008 card 0000,0000 rev 02 class 03,80,00 hdr 00
(II) PCI: End of PCI scan
(II) Host-to-PCI bridge:
(II) Host-to-PCI bridge:
(II) Bus 0: bridge is at (0:0:0), (-1,0,0), BCTRL: 0x00 (VGA_EN is cleared)
(II) Bus 0 I/O range:
	[0] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 0 non-prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 0 prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 1: bridge is at (0:0:0), (-1,1,0), BCTRL: 0x00 (VGA_EN is cleared)
(II) Bus 1 I/O range:
	[0] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 1 non-prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 1 prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(--) PCI: (1:4:0) HP unknown chipset (0x1008) rev 2, Mem @ 0xf6000000/25, BIOS @ 0xf1e00000/21
(II) Addressable bus resource ranges are
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
	[1] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) OS-reported resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) Active PCI resource ranges:
	[0] -1 0	0xf2fff000 - 0xf2fff07f (0x80) MX[B]
	[1] -1 0	0xf2ffe000 - 0xf2ffefff (0x1000) MX[B]
	[2] -1 0	0xf2ffd000 - 0xf2ffd0ff (0x100) MX[B]
	[3] -1 0	0xf1e00000 - 0xf1ffffff (0x200000) MX[B](B)
	[4] -1 0	0xf6000000 - 0xf7ffffff (0x2000000) MX[B](B)
	[5] -1 0	0x0000ff00 - 0x0000ff7f (0x80) IX[B]
	[6] -1 0	0x0000fe00 - 0x0000feff (0x100) IX[B]
(II) Active PCI resource ranges after removing overlaps:
	[0] -1 0	0xf2fff000 - 0xf2fff07f (0x80) MX[B]
	[1] -1 0	0xf2ffe000 - 0xf2ffefff (0x1000) MX[B]
	[2] -1 0	0xf2ffd000 - 0xf2ffd0ff (0x100) MX[B]
	[3] -1 0	0xf1e00000 - 0xf1ffffff (0x200000) MX[B](B)
	[4] -1 0	0xf6000000 - 0xf7ffffff (0x2000000) MX[B](B)
	[5] -1 0	0x0000ff00 - 0x0000ff7f (0x80) IX[B]
	[6] -1 0	0x0000fe00 - 0x0000feff (0x100) IX[B]
(II) OS-reported resource ranges after removing overlaps with PCI:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) All system resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0xf2fff000 - 0xf2fff07f (0x80) MX[B]
	[3] -1 0	0xf2ffe000 - 0xf2ffefff (0x1000) MX[B]
	[4] -1 0	0xf2ffd000 - 0xf2ffd0ff (0x100) MX[B]
	[5] -1 0	0xf1e00000 - 0xf1ffffff (0x200000) MX[B](B)
	[6] -1 0	0xf6000000 - 0xf7ffffff (0x2000000) MX[B](B)
	[7] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[8] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
	[9] -1 0	0x0000ff00 - 0x0000ff7f (0x80) IX[B]
	[10] -1 0	0x0000fe00 - 0x0000feff (0x100) IX[B]
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
	mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
(II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,
	pm2, pm, 300sx, 500tx, mx, delta
	S3VIdentify
(II) S3VIRGE: driver (version 1.6.13) for S3 ViRGE chipsets: virge, 86C325,
	virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
	86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
	trio 3d/2x, 86C362, 86C368
(II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
	SIS300, SIS630, SIS540
(II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
	Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
	Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
	TwisterK
(II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, cyber9388,
	cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
	tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
	providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
	cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
	cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
	ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
	ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
	3dfx Voodoo3, 3dfx Voodoo5
(II) FBDev: driver for framebuffer: fbdev, afb
(II) ATI: ATI driver (version 6.3.6) for chipsets: ati
(II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
	ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
	ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
	ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
	ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
	ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
	ATI Rage 128 Mobility ML (AGP)
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
	ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
	ATI Radeon VE (AGP)
(II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,
	imstt3d
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) v4l driver for Video4Linux
	S3VProbe begin
(EE) No devices detected.

Fatal server error:
no screens found

When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to submit@bugs.debian.org.




From - Thu Nov 08 21:24:21 2018
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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Debian 3.0 on C200
Date: 30 Aug 2002 16:53:13 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:15971

Michael,

Yes, I have been using X on a C200 as my primary workstation at work for
the last couple of months.

The trick is to see if you have a supported video card or not.

When your system boots (check dmesg) do you see a line that looks
something similar to this?

fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio:
0xfa100000

If you see the fb0: device, then you can use X on the framebuffer
driver.  I can send you my config if you would like, but I think I'm
using the default config the debian package setup for me.

If you do not see the fb0: line, then you can not run X on the system
yet because HP has not released any documentation on the drivers. 
[Note: there is an effort underway (check the recent archives) about
getting X running on a voodoo2 card on a c200 so that effort might
be of interest to you also!

- Ryan


On Fri, 2002-08-30 at 16:28, Michael Madden wrote:
> Hello:
> 
> Has anyone gotten X to work with the Debian 3.0 port on a PA-RISC C200 machine? 
> I have a C200 that I've installed Debian 3.0 on, but I cannot get X setup 
> correctly.
> 
> The hardware is:
> Main memory size: 768 Mbytes
> 1  Raven U 200 (9000/780/C200) processor
> 2 16550A serial ports
> 1 ethernet interface
>   eth0: Digital DS21143 Tulip rev 48
> PCI bus devices:
> SCSI storage controller: LSI Logic / Symbios Logic (formerly NCR) 53c875 (rev 4).
> Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 48).
> Display controller: PCI device 103c:1008 (Hewlett-Packard Company) (rev 2).




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From: "B. Douglas Hilton" <bdhilton@charter.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:15972

Hi, yes, I have it working with a Visualize-EG graphics card. It runs
at 1024x768@8bpp using the framebuffer. Chances are that you have one
of the Visualize-FX boards which is not yet supported.

FYI, I am currently working on getting PCI Voodoo2 boards to work
on hppa machines both in console and XFree86 2D mode. The kernel
has an sst1 framebuffer option, and X can now use the V2 as a 2D
card. This would be helpful as the HP graphics cards were pretty
hi-tech, low-volume cards and moreover there are quite a lot of
different models, while the Voodoo2 boards are fairly common
and well-understood.

Right now my C200 is offline as I am working on upgrading a
Netwinder which I am passing along to an Arm-linux developer,
but I hope to get some work done on this project later this
weekend.

Anyways, a Visualize-EG card is proven to work with a C200.

- Doug



Michael Madden wrote:
> Hello:
> 
> Has anyone gotten X to work with the Debian 3.0 port on a PA-RISC C200 machine? 
> I have a C200 that I've installed Debian 3.0 on, but I cannot get X setup 
> correctly.
> 
> The hardware is:
> Main memory size: 768 Mbytes
> 1  Raven U 200 (9000/780/C200) processor
> 2 16550A serial ports
> 1 ethernet interface
>   eth0: Digital DS21143 Tulip rev 48
> PCI bus devices:
> SCSI storage controller: LSI Logic / Symbios Logic (formerly NCR) 53c875 (rev 4).
> Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 48).
> Display controller: PCI device 103c:1008 (Hewlett-Packard Company) (rev 2).
> 
> 
> I am attaching my config and log files if it helps.
> 
> Thanks in advance,
> Michael
> 
> ================================================================================
> 
> ### BEGIN DEBCONF SECTION
> # XF86Config-4 (XFree86 server configuration file) generated by dexconf, the
> # Debian X Configuration tool, using values from the debconf database.
> #
> # Edit this file with caution, and see the XF86Config-4 manual page.
> # (Type "man XF86Config-4" at the shell prompt.)
> #
> # If you want your changes to this file preserved by dexconf, only make changes
> # before the "### BEGIN DEBCONF SECTION" line above, and/or after the
> # "### END DEBCONF SECTION" line below.
> 
> Section "Files"
> 	FontPath	"unix/:7100"			# local font server
> 	# if the local font server has problems, we can fall back on these
> 	FontPath	"/usr/lib/X11/fonts/misc"
> 	FontPath	"/usr/lib/X11/fonts/cyrillic"
> 	FontPath	"/usr/lib/X11/fonts/100dpi/:unscaled"
> 	FontPath	"/usr/lib/X11/fonts/75dpi/:unscaled"
> 	FontPath	"/usr/lib/X11/fonts/Type1"
> 	FontPath	"/usr/lib/X11/fonts/Speedo"
> 	FontPath	"/usr/lib/X11/fonts/100dpi"
> 	FontPath	"/usr/lib/X11/fonts/75dpi"
> EndSection
> 
> Section "Module"
> 	Load	"GLcore"
> 	Load	"bitmap"
> 	Load	"dbe"
> 	Load	"ddc"
> 	Load	"dri"
> 	Load	"extmod"
> 	Load	"freetype"
> 	Load	"glx"
> 	Load	"int10"
> 	Load	"pex5"
> 	Load	"record"
> 	Load	"speedo"
> 	Load	"type1"
> 	Load	"vbe"
> 	Load	"xie"
> EndSection
> 
> Section "InputDevice"
> 	Identifier	"Generic Keyboard"
> 	Driver		"keyboard"
> 	Option		"CoreKeyboard"
> 	Option		"XkbRules"	"xfree86"
> 	Option		"XkbModel"	"pc104"
> 	Option		"XkbLayout"	"us"
> EndSection
> 
> Section "InputDevice"
> 	Identifier	"Configured Mouse"
> 	Driver		"mouse"
> 	Option		"CorePointer"
> 	Option		"Device"		"/dev/psaux"
> 	Option		"Protocol"		"PS/2"
> 	Option		"Emulate3Buttons"	"true"
> 	Option		"ZAxisMapping"		"4 5"
> EndSection
> 
> Section "InputDevice"
> 	Identifier	"Generic Mouse"
> 	Driver		"mouse"
> 	Option		"SendCoreEvents"	"true"
> 	Option		"Device"		"/dev/input/mice"
> 	Option		"Protocol"		"ImPS/2"
> 	Option		"Emulate3Buttons"	"true"
> 	Option		"ZAxisMapping"		"4 5"
> EndSection
> 
> Section "Device"
> 	Identifier	"Generic Video Card"
> 	Driver		"fbdev"
> 	Option		"UseFBDev"		"true"
> EndSection
> 
> Section "Monitor"
> 	Identifier	"Generic Monitor"
> #
> HorizSync
> 30-100
> 	HorizSync	31.5, 48.5
> 	VertRefresh	50-160
> 	Option		"DPMS"
> EndSection
> 
> Section "Screen"
> 	Identifier	"Default Screen"
> 	Device		"Generic Video Card"
> 	Monitor		"Generic Monitor"
> 	DefaultDepth	8
> 	SubSection "Display"
> 		Depth		1
> 		Modes		"1280x1024"
> 	EndSubSection
> 	SubSection "Display"
> 		Depth		4
> 		Modes		"1280x1024"
> 	EndSubSection
> 	SubSection "Display"
> 		Depth		8
> 		Modes		"1280x1024"
> 	EndSubSection
> 	SubSection "Display"
> 		Depth		15
> 		Modes		"1280x1024"
> 	EndSubSection
> 	SubSection "Display"
> 		Depth		16
> 		Modes		"1280x1024"
> 	EndSubSection
> 	SubSection "Display"
> 		Depth		24
> 		Modes		"1280x1024"
> 	EndSubSection
> EndSection
> 
> Section "ServerLayout"
> 	Identifier	"Default Layout"
> 	Screen		"Default Screen"
> 	InputDevice	"Generic Keyboard"
> 	InputDevice	"Configured Mouse"
> 	InputDevice	"Generic Mouse"
> EndSection
> 
> Section "DRI"
> 	Mode	0666
> EndSection
> 
> ### END DEBCONF SECTION
> 
> ================================================================================
> 
> This is a pre-release version of XFree86, and is not supported in any
> way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
> to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
> please check the latest version in the XFree86 CVS repository
> (http://www.XFree86.Org/cvs)
> 
> XFree86 Version 4.1.0.1 / X Window System
> (protocol Version 11, revision 0, vendor release 6510)
> Release Date: 21 December 2001
> 	If the server is older than 6-12 months, or if your card is
> 	newer than the above date, look for a newer version before
> 	reporting problems.  (See http://www.XFree86.Org/FAQ)
> Build Operating System: Linux 2.4.16-64 parisc64 [ELF] 
> (==) Log file: "/var/log/XFree86.0.log", Time: Fri Aug 30 16:23:17 2002
> (==) Using config file: "/etc/X11/XF86Config-4"
> Markers: (--) probed, (**) from config file, (==) default setting,
>          (++) from command line, (!!) notice, (II) informational,
>          (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> (==) ServerLayout "Default Layout"
> (**) |-->Screen "Default Screen" (0)
> (**) |   |-->Monitor "Generic Monitor"
> (**) |   |-->Device "Generic Video Card"
> (**) |-->Input Device "Generic Keyboard"
> (**) Option "XkbRules" "xfree86"
> (**) XKB: rules: "xfree86"
> (**) Option "XkbModel" "pc104"
> (**) XKB: model: "pc104"
> (**) Option "XkbLayout" "us"
> (**) XKB: layout: "us"
> (==) Keyboard: CustomKeycode disabled
> (**) |-->Input Device "Configured Mouse"
> (**) |-->Input Device "Generic Mouse"
> (WW) The directory "/usr/lib/X11/fonts/cyrillic" does not exist.
> 	Entry deleted from font path.
> (**) FontPath set to "unix/:7100,/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts/100dpi/:unscaled,/usr/lib/X11/fonts/75dpi/:unscaled,/usr/lib/X11/fonts/Type1,/usr/lib/X11/fonts/Speedo,/usr/lib/X11/fonts/100dpi,/usr/lib/X11/fonts/75dpi"
> (==) RgbPath set to "/usr/X11R6/lib/X11/rgb"
> (++) using VT number 7
> 
> (WW) Cannot open APM
> (II) PCI: PCI scan (all values are in hex)
> (II) PCI: 00:13:0: chip 1000,000f card 0000,0000 rev 04 class 01,00,00 hdr 00
> (II) PCI: 00:14:0: chip 1011,0019 card 103c,104f rev 30 class 02,00,00 hdr 00
> (II) PCI: 01:04:0: chip 103c,1008 card 0000,0000 rev 02 class 03,80,00 hdr 00
> (II) PCI: End of PCI scan
> (II) Host-to-PCI bridge:
> (II) Host-to-PCI bridge:
> (II) Bus 0: bridge is at (0:0:0), (-1,0,0), BCTRL: 0x00 (VGA_EN is cleared)
> (II) Bus 0 I/O range:
> 	[0] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
> (II) Bus 0 non-prefetchable memory range:
> 	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
> (II) Bus 0 prefetchable memory range:
> 	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
> (II) Bus 1: bridge is at (0:0:0), (-1,1,0), BCTRL: 0x00 (VGA_EN is cleared)
> (II) Bus 1 I/O range:
> 	[0] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
> (II) Bus 1 non-prefetchable memory range:
> 	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
> (II) Bus 1 prefetchable memory range:
> 	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
> (--) PCI: (1:4:0) HP unknown chipset (0x1008) rev 2, Mem @ 0xf6000000/25, BIOS @ 0xf1e00000/21
> (II) Addressable bus resource ranges are
> 	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
> 	[1] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
> (II) OS-reported resource ranges:
> 	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
> 	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
> 	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
> 	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
> (II) Active PCI resource ranges:
> 	[0] -1 0	0xf2fff000 - 0xf2fff07f (0x80) MX[B]
> 	[1] -1 0	0xf2ffe000 - 0xf2ffefff (0x1000) MX[B]
> 	[2] -1 0	0xf2ffd000 - 0xf2ffd0ff (0x100) MX[B]
> 	[3] -1 0	0xf1e00000 - 0xf1ffffff (0x200000) MX[B](B)
> 	[4] -1 0	0xf6000000 - 0xf7ffffff (0x2000000) MX[B](B)
> 	[5] -1 0	0x0000ff00 - 0x0000ff7f (0x80) IX[B]
> 	[6] -1 0	0x0000fe00 - 0x0000feff (0x100) IX[B]
> (II) Active PCI resource ranges after removing overlaps:
> 	[0] -1 0	0xf2fff000 - 0xf2fff07f (0x80) MX[B]
> 	[1] -1 0	0xf2ffe000 - 0xf2ffefff (0x1000) MX[B]
> 	[2] -1 0	0xf2ffd000 - 0xf2ffd0ff (0x100) MX[B]
> 	[3] -1 0	0xf1e00000 - 0xf1ffffff (0x200000) MX[B](B)
> 	[4] -1 0	0xf6000000 - 0xf7ffffff (0x2000000) MX[B](B)
> 	[5] -1 0	0x0000ff00 - 0x0000ff7f (0x80) IX[B]
> 	[6] -1 0	0x0000fe00 - 0x0000feff (0x100) IX[B]
> (II) OS-reported resource ranges after removing overlaps with PCI:
> 	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
> 	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
> 	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
> 	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
> (II) All system resource ranges:
> 	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
> 	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
> 	[2] -1 0	0xf2fff000 - 0xf2fff07f (0x80) MX[B]
> 	[3] -1 0	0xf2ffe000 - 0xf2ffefff (0x1000) MX[B]
> 	[4] -1 0	0xf2ffd000 - 0xf2ffd0ff (0x100) MX[B]
> 	[5] -1 0	0xf1e00000 - 0xf1ffffff (0x200000) MX[B](B)
> 	[6] -1 0	0xf6000000 - 0xf7ffffff (0x2000000) MX[B](B)
> 	[7] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
> 	[8] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
> 	[9] -1 0	0x0000ff00 - 0x0000ff7f (0x80) IX[B]
> 	[10] -1 0	0x0000fe00 - 0x0000feff (0x100) IX[B]
> (II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
> 	mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
> (II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,
> 	pm2, pm, 300sx, 500tx, mx, delta
> 	S3VIdentify
> (II) S3VIRGE: driver (version 1.6.13) for S3 ViRGE chipsets: virge, 86C325,
> 	virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
> 	86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
> 	trio 3d/2x, 86C362, 86C368
> (II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
> 	SIS300, SIS630, SIS540
> (II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
> 	Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
> 	Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
> 	TwisterK
> (II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, cyber9388,
> 	cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
> 	tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
> 	providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
> 	cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
> 	cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
> (II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
> 	ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
> 	ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
> (II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
> 	3dfx Voodoo3, 3dfx Voodoo5
> (II) FBDev: driver for framebuffer: fbdev, afb
> (II) ATI: ATI driver (version 6.3.6) for chipsets: ati
> (II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
> 	ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
> 	ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
> 	ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
> 	ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
> 	ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
> 	ATI Rage 128 Mobility ML (AGP)
> (II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
> 	ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
> 	ATI Radeon VE (AGP)
> (II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,
> 	imstt3d
> (II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
> (II) v4l driver for Video4Linux
> 	S3VProbe begin
> (EE) No devices detected.
> 
> Fatal server error:
> no screens found
> 
> When reporting a problem related to a server crash, please send
> the full server output, not just the last messages.
> This can be found in the log file "/var/log/XFree86.0.log".
> Please report problems to submit@bugs.debian.org.
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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From: Will Newton <will@misconception.org.uk>
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Subject: [parisc-linux] 64 byte alignment
Date: Sat, 31 Aug 2002 00:43:21 +0100
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I'm trying to 64 byte align a stack pointer, unfortunately it's not working. 
Here is my code:

        ldi 0x03f,%r21                  ; Load mask (b0111111)
        and,<> %r3,%r21,%r21            ; Check alignment
        addi 64,%r3,%r3                 ; If not aligned round up
        depwi 0x0,31,6,%r3               ; Clear low order bits

Basically the idea is:
 and the low 6 bits with a mask to see if any are set.
 if any are set, add 64 and clear the low order bits

I may be doing something horribly ignorant here, but PA-RISC assembly is not 
the most widely documented of things. :)

Thanks,


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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] 64 byte alignment
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> I'm trying to 64 byte align a stack pointer, unfortunately it's not working. 
> Here is my code:
> 
>         ldi 0x03f,%r21                  ; Load mask (b0111111)
>         and,<> %r3,%r21,%r21            ; Check alignment
>         addi 64,%r3,%r3                 ; If not aligned round up
>         depwi 0x0,31,6,%r3               ; Clear low order bits
> 
> Basically the idea is:
>  and the low 6 bits with a mask to see if any are set.
>  if any are set, add 64 and clear the low order bits
> 
> I may be doing something horribly ignorant here, but PA-RISC assembly is not 
> the most widely documented of things. :)

nullification only applies to one instruction. you probably need a
branch there.

as for documentation, the entire intruction set is documented for pa1.1
and 2.0 on the hp web site:

http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,958!1!253,00.html

http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,959,00.html

horrid link names :-(

another good way to do this is to write what you want in C, and tell gcc
to tell you what you want :-)


input: r26, r20 is scratch

        extru %r26,31,6,%r20
        comib,=,n 0,%r20,.L2
        ldo 64(%r26),%r26
        depi 0,31,6,%r26
.L2:
        /* ... */

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Saturday 31 Aug 2002 12:57 am, Randolph Chung wrote:

> nullification only applies to one instruction. you probably need a
> branch there.

I know, but I figured clearing the low 6 bits on an already aligned pointer 
would do no damage.

> another good way to do this is to write what you want in C, and tell gcc
> to tell you what you want :-)

Thanks! I trust gcc somewhat more than I do myself at this stage. :)


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Subject: Re: [parisc-linux] 64 byte alignment
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> another good way to do this is to write what you want in C, and tell gcc
> to tell you what you want :-)

GCC aligns its stacks to 64 and 128 byte boundaries for the 32 and 64
bit ports, respectively.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] Debugging assembly
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I'm having trouble getting gas to output debugging information for an 
assembly file. as -g gives a warning about -g being ambiguous, as --gdwarf2 
reults in objdump saying "no recognized debugging information", and as 
--gstabs results in stuff like this:

/* file file.S line x addr 0x0000000000000000 */

Any ideas?


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Subject: Re: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
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> 
> Because the initial field of the struct is an unsigned char type,
> the cast to uint32_t is wrong.  The code is making implementation
> dependent assumptions.
> 
Finaly this trial version of function:


BOOLEAN isa_null_partition_record(struct partition *p)
{
      if (p->boot_ind == 0x00 &&
          p->head == 0x00 &&
          p->sector == 0x00 &&
          p->cyl == 0x00 &&
          p->sys_ind == 0x00 &&
          p->end_head == 0x00 &&
          p->end_sector == 0x00 &&
          p->end_cyl == 0x00 &&
          p->start_sect == 0x00 &&
          p->nr_sects == 0x00 )
          return TRUE;
      else
          return FALSE;
}

would be more portable and more easy to read and understand :<)

Thanks again for your help,
	Joel



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Joel Soete wrote:
> Finaly this trial version of function:
> 
> 
> BOOLEAN isa_null_partition_record(struct partition *p)
> {
>       if (p->boot_ind == 0x00 &&
>           p->head == 0x00 &&
>           p->sector == 0x00 &&
>           p->cyl == 0x00 &&
>           p->sys_ind == 0x00 &&
>           p->end_head == 0x00 &&
>           p->end_sector == 0x00 &&
>           p->end_cyl == 0x00 &&
>           p->start_sect == 0x00 &&
>           p->nr_sects == 0x00 )
>           return TRUE;

Since start_sect and nr_sects are ints, this code will also generate an
"unaligned data reference fault" like the original code did. You need
to find the origin of "struct partition *p" when the address is un-aligned.

grant


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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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Subject: [parisc-linux] iodc call and HPMC: dump driver.
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This is a multi-part message in MIME format.
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	Hi all.
Do you know a guy who is a guru of iodc calls ?
I'm still stuck with this. I think I was really near the
solution. Now my iodc call create beatifull HPMC.
Take a look to this call, I was thinking that it
was all right, but there is still something wrong.
now i'm able to retrieve hpa,
I based this on palo code:

ret =  real32_call(PAGE0->mem_boot.iodc_io, (unsigned long)PAGE0->mem_boot.hpa, DUMPDEV_WRITE,
  PAGE0->mem_boot.spa, __pa(PAGE0->mem_boot.dp.layers), __pa(pdc_result), devaddr, __pa(iodc_dbuf), 2048);

DUMPDEV_WRITE = 1
static unsigned long pdc_result[32] __attribute__ ((aligned (8))); 
static char __attribute__((aligned(64))) iodc_dbuf[DUMP_PAGE_SZ];

and devaddr=191889408

Disk /dev/sda: 64 heads, 32 sectors, 17366 cylinders
Units = cylinders of 2048 * 512 bytes

/dev/sda1   *         1        61     62448   f0  Linux/PA-RISC boot
/dev/sda2            62       183    124928   83  Linux
/dev/sda3           184      1648   1500160   82  Linux swap
/dev/sda4          1649     17366  16095232    5  Extended
/dev/sda5          1649      5554   3999728   83  Linux
/dev/sda6          5555      9460   3999728   82  Linux swap
/dev/sda7          9461     13366   3999728   83  Linux
/dev/sda8         13367     17366   4095984   83  Linux

Do you know someone who is well aware of iodc calls ?
I want to discuss a bit about this.

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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YmVnaW46dmNhcmQgCm46QnJ1bm87VklEQUwKdGVsO2ZheDowMS02OS04Mi02MC0xNAp0ZWw7
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>-- Original Message --
>To: Joel Soete <joel.soete@freebel.net>
>Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>, jsoe0708@tiscali.be,
>	parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
>
>From: Grant Grundler <grundler@dsl2.external.hp.com>
>Date: Sat, 31 Aug 2002 17:50:15 -0600
>
>
>Joel Soete wrote:
>> Finaly this trial version of function:
>>
>>
>> BOOLEAN isa_null_partition_record(struct partition *p)
>> {
>>       if (p->boot_ind == 0x00 &&
>>           p->head == 0x00 &&
>>           p->sector == 0x00 &&
>>           p->cyl == 0x00 &&
>>           p->sys_ind == 0x00 &&
>>           p->end_head == 0x00 &&
>>           p->end_sector == 0x00 &&
>>           p->end_cyl == 0x00 &&
>>           p->start_sect == 0x00 &&
>>           p->nr_sects == 0x00 )
>>           return TRUE;
>
>Since start_sect and nr_sects are ints, this code will also generate an
>"unaligned data reference fault" like the original code did.

Trust me it does not? (it works fine)

>You need
>to find the origin of "struct partition *p" when the address is un-aligned.
>
Very hard to define:
a. the previous code works (again all odds)
b. the following trial code:
"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

typedef u_int8_t  BOOLEAN;

#ifndef TRUE
  #define TRUE  1
#endif
#ifndef FALSE
  #define FALSE 0
#endif

struct partition {
    unsigned char boot_ind;     /* 0x80 - active */
    unsigned char head;     /* starting head */
    unsigned char sector;       /* starting sector */
    unsigned char cyl;      /* starting cylinder */
    unsigned char sys_ind;      /* What partition type */
    unsigned char end_head;     /* end head */
    unsigned char end_sector;   /* end sector */
    unsigned char end_cyl;      /* end cylinder */
    unsigned int start_sect;    /* starting sector counting from 0 */
    unsigned int nr_sects;      /* nr of sectors in partition */
};

BOOLEAN isa_null_partition_record(struct partition *p)
{
    int          i;
    u_int32_t   *uip = (u_int32_t *) p;

    for (i=0; i<4; i++) {
        if (*uip!=0x00) return FALSE;
    }

    return TRUE;
}

int main(int argc, char * * argv, char * * env) {

    struct partition p1, p2;

    p1.boot_ind=0;
    p1.head=0;
    p1.sector=0;
    p1.cyl=0;
    p1.sys_ind=0;
    p1.end_head=0;
    p1.end_sector=0;
    p1.end_cyl=0;
    p1.start_sect=0;
    p1.nr_sects=0;

    printf("Is that p1 is a null partition: %u\n", isa_null_partition_record(&p1));

    p2.boot_ind=1;
    p2.head=2;
    p2.sector=3;
    p2.cyl=4;
    p2.sys_ind=5;
    p2.end_head=6;
    p2.end_sector=7;
    p2.end_cyl=8;
    p2.start_sect=9;
    p2.nr_sects=10;

    printf("Is that p2 is a null partition: %u\n", isa_null_partition_record(&p2));
    return 0;
}
"
did not reproduce the problem.


Even if in the previous code, I replace:
BOOLEAN isa_null_partition_record(struct partition *p)
{
    int          i;
    u_int32_t   *uip = (u_int32_t *) p;

    for (i=0; i<4; i++) {
        if (*uip!=0x00) return FALSE;
    }

    return TRUE;
}
by
extern BOOLEAN isa_null_partition_record(struct partition *p);

and also link it with the original library containing isa_null_partition_record,
I can no more reproduce the problem.

The only difference I can notice is that 'isa_null_partition_record' is
not directly used by evms tools but through modules loaded at run time (the
cause of gdb debug difficulties) (or am I wrong and a subtil detail escape
to my attention)?

What can I do to analyse this problem? (printing all p addresses and its
elements
during a run with the original code and compare with a run with modified
code?)

Thanks again for attention and help,
    Joel






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Hi all,

I install gcc-3.2 beside default gcc-3.0.

I would like to use gcc-3.2 to compile the latest cvs kernel. HOWTO do this?

Thanks in advance,
    Joel

PS: with gcc-3.1.1 snapshot I reach to obtain a bootable 32bit kernel but
presenting a problem with network connection. Was I alone to observe this?



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>
>Hi all,
>
>I install gcc-3.2 beside default gcc-3.0.
>
>I would like to use gcc-3.2 to compile the latest cvs kernel. HOWTO do this?
>
>Thanks in advance,
>    Joel
>
>PS: with gcc-3.1.1 snapshot I reach to obtain a bootable 32bit kernel but
>presenting a problem with network connection. Was I alone to observe this?
>
I also forget to mentionned that I also applied recommendation in /usr/share/doc/gcc-3.2-base/README.Debian.gz
(ie: CC="gcc-3.2" ; export CC but in the kernel special case there is no
./configure step so may be there is another teaps. And with snapshot gcc
was build in another tree so the problem didn't exists)

Many thanks again for all help,
    Joel




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> I would like to use gcc-3.2 to compile the latest cvs kernel. HOWTO do this?

edit the toplevel kernel Makefile and change the HOSTCC and CC lines 
so that HOSTCC=gcc-3.2 and CC=$(CROSS_COMPILE)gcc-3.2

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>> I would like to use gcc-3.2 to compile the latest cvs kernel. HOWTO do
>this?
>
>edit the toplevel kernel Makefile and change the HOSTCC and CC lines 
>so that HOSTCC=gcc-3.2 and CC=$(CROSS_COMPILE)gcc-3.2
>

Oops the 32bits kernel which I obtain, boot well on my b2k but ip connection
problem is always there: the system seems to loop somewhere with ssh (heart
bit seems life and no more response neither at serial console, neither at
ssh prompt) and telnet causes an HPMC (bus timeout?)

I try find information on howto run sshd with gdb on the server (MARC ml
archives) but do not found any relevant info. And i don't know if Bruno LKCD
would help if near to be ready.

What can I do?

Joel

PS: this problem was not with gcc-3.2 (now snapshot 3.3) and it is a long
time I play with gcc snapshot to compare.



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Xref: news.gmane.org gmane.linux.ports.parisc:15986

Guys, I'm getting a kernel panic after trying to access my tape drive.
Can anyone help me out? I tried to post all relevant info, let me know
if I can provide anything else:


-----------------FIRST TRY----------------
Debian GNU/Linux 3.0 seki ttyS0

seki login: root
Password:
Last login: Sat Nov 14 02:50:47 1992 on ttyS0
Linux seki 2.4.9-32 #1 Fri Nov 30 19:36:30 MST 2001 parisc unknown

seki:~/test# tar -xvpf /dev/st0
st: Version 20010812, bufsize 32768, wrt 30720, max init. bufs 4, s/g segs 16
Attached scsi tape st0 at scsi1, channel 0, id 1, lun 0
st0: Block limits 1 - 16777215 bytes.

ccio-dma.c:362: Assertion (*res_ptr & *mask_ptr) == *mask_ptr failed!
Kernel panic: (*res_ptr & *mask_ptr) == *mask_ptr
In interrupt handler - not syncing

-----------------END FIRST TRY----------------


-----------------SECOND TRY----------------
Debian GNU/Linux 3.0 seki ttyS0

seki login: root
Password:
Last login: Sat Nov 14 02:41:23 1992 on ttyS0
Linux seki 2.4.9-32 #1 Fri Nov 30 19:36:30 MST 2001 parisc unknown

seki:~# lsmod
Module                  Size  Used by
seki:~# insmod st
Using /lib/modules/2.4.9-32/kernst: Version 20010812, bufsize 32768, wrt 30720,
max init. bufs 4, s/g segs 16
el/drivers/scsi/Attached scsi tape st0 at scsi1, channel 0, id 1, lun 0
st.o
seki:~# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 05 Lun: 00
  Vendor: SEAGATE  Model: ST34371W         Rev: HP03
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 06 Lun: 00
  Vendor: SEAGATE  Model: ST32171W         Rev: HP03
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 01 Lun: 00
  Vendor: SONY     Model: SDT-7000         Rev: 0150
  Type:   Sequential-Access                ANSI SCSI revision: 02
seki:~# mt -f /dev/st0 status
st0: Block limits 1 - 16777215 bytes.
drive type = Generic SCSI-2 tape
drive status = 318767616
sense key error = 0
residue count = 0
file number = 0
block number = 0
Tape block size 512 bytes. Density code 0x13 (DDS (61000 bpi)).
Soft error count since last status=0
General status bits on (41010000):
 BOT ONLINE IM_REP_EN
seki:~# tar -cvpf /dev/st0 /tftpboot
tar: Removing leading `/' from member names
tftpboot/
tftpboot/tftpboot.img

ccio-dma.c:362: Assertion (*res_ptr & *mask_ptr) == *mask_ptr failed!
Kernel panic: (*res_ptr & *mask_ptr) == *mask_ptr
In interrupt handler - not syncing

-----------------END SECOND TRY----------------

-----------------BOOT INFO----------------
Firmware Version  2.7

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache 
  ---------  --------   ---------------------  -----------------  -------------
      0      180 MHz    Active                 Functional         1 MB/1 MB

  Central Bus Speed (in MHz) :        120

  Available memory (bytes)    : 805306368
  Good memory required (bytes):          0 (Not Set by OS)
  Primary boot path:    FWSCSI.6.0
  Alternate boot path:  SESCSI.6.0
  Console path:         GRAPHICS(3)
  Keyboard path:        PS2

CPU 0
WARNING:  Self tests have been disabled as a result of FASTBOOT
          being enabled.  To enable self tests, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.
WARNING:  Memory has been initialized, but not tested as a result of
          FASTBOOT being enabled.  To test memory, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

10 seconds expired.
Proceeding...

Searching for device(s) with bootable media...
This may take several minutes.

To discontinue search, press any key (termination may not be immediate).

Attempting to boot Primary Path...

BOOTABLE DEVICE FOUND:
   Path Number        Device Path              Device Type and Utilities
   -----------        -----------------        -------------------------
   P0                 FWSCSI.6.0               SEAGATE ST32171W        
                                               IPL

Booting... 
Boot IO Dependent Code (IODC) revision 150


HARD Booted.
palo ipl 0.96 root@smallone Sun Nov 11 23:23:30 UTC 2001

Partition Start(MB) End(MB) Id Type
1               1      16   f0 Palo
3            1315    2046   82 swap
5              17    1314   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 3122078 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently  used by firmware (serial).

Command line for kernel: 'root=/dev/sdb5 HOME=/ console=ttyS0 TERM=vt102'
Selected kernel: /boot/vmlinux from partition 5
Opening /boot/vmlinux
Opening /boot/vmlinux-2.4.9-32
ELF32 executable
Entry 00100000 first 00100000 n 6
Segment 0 load 00100000 size 1618208 mediaptr 0x1000
Segment 1 load 0028c000 size 287728 mediaptr 0x18d000
Segment 2 load 002d4000 size 379072 mediaptr 0x1d4000
Segment 3 load 00334000 size 8192 mediaptr 0x231000
Segment 4 load 00338000 size 32768 mediaptr 0x233000
Segment 5 load 003750e8 size 83184 mediaptr 0x23b0e8
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.9-32 (root@paer) (gcc version 3.0.2 (Debian)) #1 Fri Nov 30 19
:36:30 MST 2001
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model	000059c0 00000481 00000000 00000002 77d14d81 100000f0 00000008 000000b2 
000000b2
vers	00000205
cpuid	000001c9
CPUID	vers 14 rev 9
model	9000/780/C180
Total Memory: 768 Mb
pagetable_init
On node 0 totalpages: 196608
zone(0): 196608 pages.
zone(1): 0 pages.
zone(2): 0 pages.
LED display at f0190001 registered
Kernel command line: root=/dev/sdb5 HOME=/ console=ttyS0 TERM=vt102
Console: colour dummy device 160x64
Calibrating delay loop... 358.80 BogoMIPS
Memory: 770644k available
Dentry-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 65536 (order: 6, 262144 bytes)
Page-cache hash table entries: 262144 (order: 8, 1048576 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
2. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions 0x680, 0x1, 0xa
3. Raven U/L2 Core FW-SCSI (4) at 0xf200c000 [8/12], versions 0x3b, 0x0, 0x89
4. Raven U/L2 Core BA (11) at 0xffd00000 [8/16], versions 0x3b, 0x0, 0x81,  addi
tional addresses: 0xffc00000 
5. UL 350 Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x2e, 0x0, 0x74,
  additional addresses: 0xffd03000 
6. Raven U/L2 Core Audio (10) at 0xffd04000 [8/16/1], versions 0x3b, 0x4, 0x7b
7. Raven U/L2 Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x3b, 0x0, 0x8c
8. Raven U/L2 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x3b, 0x0, 0x82
9. Raven U/L2 Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x3b, 0x0, 
0x8a
10. Raven U/L2 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x3b, 0x0, 0
x84
11. Raven U/L2 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x3b, 0x0, 0
x84
12. Raven Backplane Wax BA (11) at 0xffe00000 [8/20], versions 0x17, 0x0, 0x8e
13. Raven Backplane Wax HIL (10) at 0xffe01000 [8/20/1], versions 0x17, 0x0, 0x7
3
14. Raven Backplane RS-232 (10) at 0xffe02000 [8/20/2], versions 0x17, 0x0, 0x8c
15. Raven Backplane Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x17, 0x0,
 0x90,  additional addresses: 0xfc00000b 
16. Gecko GSC Core Graphics (10) at 0xfa000000 [8/24], versions 0x16, 0x0, 0x85
17. U2-IOA BC GSC+ Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1, 0xc
18. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb
19. Coral SGC Graphics (10) at 0xf8000000 [10/8], versions 0x4, 0x0, 0x77
20. U2-IOA BC GSC+ Port (7) at 0xf103f000 [10/63], versions 0x501, 0x1, 0xc
21. Raven U 180 (9000/780/C180) (0) at 0xfffa0000 [32], versions 0x59c, 0x0, 0x4
22. Raven U 180 (1) at 0xfffb1000 [49], versions 0x72, 0x0, 0x9
CPU(s): 1 x PA8000 (PCX-U) at 180.000000 MHz
ccio found U2 at 0xfff88000
io_io_low: 0xf2000000
23. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions 0x680, 0x1, 0xa
24. Dino PS/2 Port (10) at 0xf2001000 [8/1], versions 0x7, 0x0, 0x96
25. Raven Backplane RS-232 (10) at 0xf2003000 [8/3], versions 0x17, 0x0, 0x8c
26. Raven U/L2 Core FW-SCSI (4) at 0xf200c000 [8/12], versions 0x3b, 0x0, 0x89
27. Raven U/L2 Core BA (11) at 0xffd00000 [8/16], versions 0x3b, 0x0, 0x81,  add
itional addresses: 0xffc00000 
28. UL 350 Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x2e, 0x0, 0x74
,  additional addresses: 0xffd03000 
29. Raven U/L2 Core Audio (10) at 0xffd04000 [8/16/1], versions 0x3b, 0x4, 0x7b
30. Raven U/L2 Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x3b, 0x0, 0x8c
31. Raven U/L2 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x3b, 0x0, 0x82
32. Raven U/L2 Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x3b, 0x0,
 0x8a
33. Raven U/L2 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x3b, 0x0, 0
x84
34. Raven U/L2 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x3b, 0x0, 0
x84
35. Raven Backplane Wax BA (11) at 0xffe00000 [8/20], versions 0x17, 0x0, 0x8e
36. Raven Backplane Wax HIL (10) at 0xffe01000 [8/20/1], versions 0x17, 0x0, 0x7
3
37. Raven Backplane RS-232 (10) at 0xffe02000 [8/20/2], versions 0x17, 0x0, 0x8c
38. Raven Backplane Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x17, 0x0,
 0x90,  additional addresses: 0xfc00000b 
39. Gecko GSC Core Graphics (10) at 0xfa000000 [8/24], versions 0x16, 0x0, 0x85
40. U2-IOA BC GSC+ Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1, 0xc
ccio found U2 at 0xfff8a000
io_io_low: 0xf1000000
41. Coral SGC Graphics (10) at 0xf8000000 [10/8], versions 0x4, 0x0, 0x77
42. U2-IOA BC GSC+ Port (7) at 0xf103f000 [10/63], versions 0x501, 0x1, 0xc
Lasi version 0 at 0xffd00000 found.
Wax at 0xffe00000 found.
Wax: HIL Keyboard-NMI registered.
Wax EISA Adapter found at 0xfc000000
Dino version 2.1 found at 0xf2000000
The GSCtoPCI (Dino hrev 1) bus converter found may exhibit
data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.
Systems shipped after Aug 20, 1997 will not exhibit this problem.
Models affected: C180, C160, C160L, B160L, and B132L workstations.

Dino: No PCI devices enabled.
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
STI word mode ROM at f0084000, hpa=fa000000
STI word mode ROM, id 2d08c0a7-9a02587, conforms to spec rev. 8.07
STI device: INTERNAL_EG_1280
STI byte mode ROM at f8000000, hpa=f8000000
STI byte mode ROM, id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071B_LZ
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 2d08c0a7, mmio: 0xfa100000
fb1: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio: 0xf8100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI en
abled
ttyS00 at iomem 0xffd05800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf2003800 (irq = 138) is a 16550A
ttyS02 at iomem 0xffe02800 (irq = 121) is a 16550A
Lasi PS/2 receive buffer timeout
PS/2 keyboard port at 0xffd08000 (irq 69) found, no device attached.
Lasi PS/2 transmit buffer timeout
PS/2 psaux port at 0xffd08100 (irq 69) found, no device attached.
Found HIL at 0xffe01000, IRQ 126
IRQ:  CPU:0 No handler for IRQ 35 !
HIL: timed out, assuming no keyboard present.
Warning : device (10, 0x17, 0x0, 0x73) NOT claimed by HIL
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=16
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xffd07000, IRQ 87
eth0: 82596 at 0xffd07000, 00 60 B0 18 9B B9 IRQ 87.
82596.c $Revision: 1.26 $
SCSI subsystem driver Revision: 1.00
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 35
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3b-20010512
  Vendor: SEAGATE   Model: ST34371W          Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST32171W          Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
scsi1: (1:0) Synchronous at offset 8, period 100ns
  Vendor: SONY      Model: SDT-7000          Rev: 0150
  Type:   Sequential-Access                  ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
ncr53c720-0-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
Partition check:
 sda: sda1
ncr53c720-0-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdb: 4194685 512-byte hdwr sectors (2148 MB)
 sdb: sdb1 sdb2 < sdb5 > sdb3
Lasi Harmony Audio rev. 2 at 0xffd04000, using IRQ 82
sticonsole_init: searching for STI ROMs
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 8192 buckets, 64Kbytes
TCP: Hash tables configured (established 262144 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
INIT: version 2.84 booting
Activating swap.
Adding Swap: 749788k swap-space (priority -1)
Checking root file system...
fsck 1.27 (8-Mar-2002)
/dev/sdb5: clean, 3167/166496 files, 32915/332312 blocks
System time was Fri Nov 13 19:56:56 UTC 1992.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Fri Nov 13 19:57:04 UTC 1992.
Calculating module dependencies... done.
Loading modules: 
Note: /etc/modules.conf is more recent than /lib/modules/2.4.9-32/modules.dep
modprobe: Can't locate module *
Checking all file systems...
fsck 1.27 (8-Mar-2002)
/dev/sda1: clean, 21754/524288 files, 116146/1048265 blocks
Setting kernel variables.
Mounting local filesystems...
/dev/sda1 on /usr type ext2 (rw)
Running 0dns-down to make sure resolv.conf is ok...done.
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: eth0: Transceiver problem.
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16

ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16


Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Fri Nov 13 13:57:56 CST 1992


Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting DHCP server: dhcp.
Starting internet superserver: inetd.
/usr/share/sendmail/sendmail not found/executable, aborting.
Starting OpenBSD Secure Shell server: sshd.
Starting periodic command scheduler: cron.

-----------------END BOOT INFO----------------



From - Thu Nov 08 21:24:23 2018
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Gcc-3.2 beside gcc-3.0: HOWTO?
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Xref: news.gmane.org gmane.linux.ports.parisc:15987

> Oops the 32bits kernel which I obtain, boot well on my b2k but ip connection
> problem is always there: the system seems to loop somewhere with ssh (heart
> bit seems life and no more response neither at serial console, neither at
> ssh prompt) and telnet causes an HPMC (bus timeout?)

looking up the iaoq and gr02 values reported in the hpmc in System.map 
would be the first step...

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: "marc " <marc@centraltx.com>
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Subject: [parisc-linux] Network Problems
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Anyone have any ideas why I get innundated with these messages on
startup and have to do a control-c to get past this part and continue booting?

Configuring network interfaces: eth0: Transceiver problem.
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16

ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
skb: pf=2 (unowned) dev=lo len=328
PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16



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In reference to a message from marc , dated Sep 02:
> Guys, I'm getting a kernel panic after trying to access my tape drive.
> Can anyone help me out? I tried to post all relevant info, let me know
> if I can provide anything else:

first step would be to try a newer kernel. 2.4.9 is very old :-)

you can either compile stuff from cvs (instructions on the
www.parisc-linux.org website), or grab a precompiled one either from
debian or ftp://ftp.parisc-linux.org/kernels/32/32-2.4.19-pa9.tar.gz

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Back to evms-1.0.1 && unaligne access && gdb
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jsoe0708@tiscali.be wrote:
> >Since start_sect and nr_sects are ints, this code will also generate an
> >"unaligned data reference fault" like the original code did.
> 
> Trust me it does not? (it works fine)

then I'll wager there is padding between the char and int fields
of that struct.

> >You need
> >to find the origin of "struct partition *p" when the address is un-aligned.
> >
> Very hard to define:
> a. the previous code works (again all odds)
> b. the following trial code:
...

> int main(int argc, char * * argv, char * * env) {
> 
>     struct partition p1, p2;

...
> did not reproduce the problem.

Things on the stack (local var) are properly aligned.
Malloc a block of mem and then point to an unaligned address
in that block.

> What can I do to analyse this problem? (printing all p addresses and its
> elements
> during a run with the original code and compare with a run with modified
> code?)

yes. You want to verify the addreses are unaligned.

grant


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Status update hppa - glibc 2.2.92 (Problems with __divdi3)
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p-l,

I've already posted the same thing on debian-glibc.

a. 'cvs co' from glibc upstream cvs (2.2.92)
b. Apply debian patches from 0list
c. Fix things

Preliminary modified patches for hppa are at:
http://www.baldric.uwo.ca/~carlos/glibc-2.3/glibc23-hppa-pthreads.dpatch
http://www.baldric.uwo.ca/~carlos/glibc-2.3/glibc23-hppa-rela.dpatch

These replace the previous glibc22-* patches of the same name.

Please do _NOT_ accept these as final versions, I'm presenting them
for anyone who may want to attempt to recreate or verify my problem.

Current build issues are:

gcc-3.2 -nostdlib -nostartfiles -o /mnt/flaire/src/glibc-upstream-cvs/libc-=
build/iconv/iconvconfig  -Wl,-dynamic-linker=3D/lib/ld.so.1    /mnt/flaire/=
src/glibc-upstream-cvs/libc-build/csu/crt1.o /mnt/flaire/src/glibc-upstream=
-cvs/libc-build/csu/crti.o `gcc-3.2 --print-file-name=3Dcrtbegin.o` /mnt/fl=
aire/src/glibc-upstream-cvs/libc-build/iconv/iconvconfig.o /mnt/flaire/src/=
glibc-upstream-cvs/libc-build/iconv/strtab.o /mnt/flaire/src/glibc-upstream=
-cvs/libc-build/iconv/xmalloc.o  -Wl,-rpath-link=3D/mnt/flaire/src/glibc-up=
stream-cvs/libc-build:/mnt/flaire/src/glibc-upstream-cvs/libc-build/math:/m=
nt/flaire/src/glibc-upstream-cvs/libc-build/elf:/mnt/flaire/src/glibc-upstr=
eam-cvs/libc-build/dlfcn:/mnt/flaire/src/glibc-upstream-cvs/libc-build/nss:=
/mnt/flaire/src/glibc-upstream-cvs/libc-build/nis:/mnt/flaire/src/glibc-ups=
tream-cvs/libc-build/rt:/mnt/flaire/src/glibc-upstream-cvs/libc-build/resol=
v:/mnt/flaire/src/glibc-upstream-cvs/libc-build/crypt:/mnt/flaire/src/glibc=
-upstream-cvs/libc-build/linuxthreads /mnt/flaire/src/glibc-upstream-cvs/li=
bc-build/libc.so.6 /mnt/flaire/src/glibc-upstream-cvs/libc-build/libc_nonsh=
ared.a -lgcc `gcc-3.2 --print-file-name=3Dcrtend.o` /mnt/flaire/src/glibc-u=
pstream-cvs/libc-build/csu/crtn.o
/mnt/flaire/src/glibc-upstream-cvs/libc-build/libc.so.6: undefined referenc=
e to `__divdi3_internal'
collect2: ld returned 1 exit status
make[2]: *** [/mnt/flaire/src/glibc-upstream-cvs/libc-build/iconv/iconvconf=
ig] Error 1
make[2]: Leaving directory `/mnt/flaire/src/glibc-upstream-cvs/libc/iconv'
make[1]: *** [iconv/others] Error 2
make[1]: Leaving directory `/mnt/flaire/src/glibc-upstream-cvs/libc'
make: *** [all] Error 2

I have _no_ idea what is going on here, I have to begin digging at:

http://sources.redhat.com/ml/glibc-cvs/2002-q3/msg00325.html (Shows the che=
ckin)

libc/sysdeps/wordsize-32/lldiv.c shows:
     24 #ifdef SHARED
     25 /* This is an ugly trick.  We cause the C code generated for the co=
de
     26    in lldiv.c to use __divdi3_internal instead of __divdi3 by defin=
ing
     27    an alias on the assembler level.  */
     28 asm ("__divdi3 =3D __divdi3_internal");
     29 #endif

objdump -t /mnt/flaire/src/glibc-upstream-cvs/libc-build/libc.so.6 | grep d=
ivdi3
001173d4 l     F .text  00000028              __udivdi3
00000000         *UND*  00000000              __divdi3_internal

It's clearly not there :}

If anyone understands... a hint would be most helpful=20

Cheers,
c.



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] iodc call and HPMC: dump driver.
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Bruno Vidal wrote:
> 	Hi all.
> Do you know a guy who is a guru of iodc calls ?

I'm not expert, but I've mucked with it abit.

> I'm still stuck with this. I think I was really near the
> solution. Now my iodc call create beatifull HPMC.

Which platform are you testing on?
32 or 64-bit kernel?

> Take a look to this call, I was thinking that it
> was all right, but there is still something wrong.
> now i'm able to retrieve hpa,
> I based this on palo code:
> 
> ret =  real32_call(PAGE0->mem_boot.iodc_io, (unsigned long)PAGE0->mem_boot.hp
>   a, DUMPDEV_WRITE,
>   PAGE0->mem_boot.spa, __pa(PAGE0->mem_boot.dp.layers), __pa(pdc_result), dev
>   addr, __pa(iodc_dbuf), 2048);

Can you dump the values for the call that HPMCs?
I'm not sure what is supposed to be passed as arguments to IODC.
I'm trying to find it in the documentation I have and then I
can verify the values are sane.

Note that all IODC is 32-bit.
And earlier IODC versions don't like byte addresses greater than 2GB.
Not sure when that got fixed but it certainly wasn't on 712
or similar workstations/servers. It wasn't even noticed as a problem
until HP started shipping 4GB disk drives (ie 1997 or so).

later IODC included a "block" interface which use block address
instead of byte address. I'll try to find documentation on this.

> DUMPDEV_WRITE = 1
> static unsigned long pdc_result[32] __attribute__ ((aligned (8))); 
> static char __attribute__((aligned(64))) iodc_dbuf[DUMP_PAGE_SZ];
> 
> and devaddr=191889408

191889408 == 0xB7000000
If this is the target byte address on the block device, it's too big.


> Disk /dev/sda: 64 heads, 32 sectors, 17366 cylinders
> Units = cylinders of 2048 * 512 bytes
> 
> /dev/sda1   *         1        61     62448   f0  Linux/PA-RISC boot
> /dev/sda2            62       183    124928   83  Linux
> /dev/sda3           184      1648   1500160   82  Linux swap
> /dev/sda4          1649     17366  16095232    5  Extended
> /dev/sda5          1649      5554   3999728   83  Linux
> /dev/sda6          5555      9460   3999728   82  Linux swap
> /dev/sda7          9461     13366   3999728   83  Linux
> /dev/sda8         13367     17366   4095984   83  Linux

which of these are you trying to write to?
sda3?

> Do you know someone who is well aware of iodc calls ?
> I want to discuss a bit about this.

hmm...inside HP there are a few people who've mucked with IODC.
Let's see if we can figure it out here first.

thanks,
grant


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Subject: Re: [parisc-linux] iodc call and HPMC: dump driver.
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Bruno Vidal wrote:
> DUMPDEV_WRITE = 1

I've found the right set of constants and argument parameters.
Those are now committed to include/asm-parisc/pdc.h.

I just realized the comments are incomplete...I only
included ARG0-ARG5 - there can be 8 args depending on
the call...hmm...I'll omit and document in the code
where it's used.

thanks,
grant


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Bruno Vidal wrote:
> ret =  real32_call(PAGE0->mem_boot.iodc_io,
	ARG0	(unsigned long)PAGE0->mem_boot.hpa,
	ARG1	DUMPDEV_WRITE,
	ARG2	PAGE0->mem_boot.spa
	ARG3	__pa(PAGE0->mem_boot.dp.layers)
	ARG4	__pa(pdc_result)
	ARG5	devaddr
	ARG6	__pa(iodc_dbuf)
	ARG7	2048);

The parameters "look" ok.

> DUMPDEV_WRITE = 1
> static unsigned long pdc_result[32] __attribute__ ((aligned (8))); 
> static char __attribute__((aligned(64))) iodc_dbuf[DUMP_PAGE_SZ];
> 
> and devaddr=191889408

except the value of this one. I'm pretty sure now it's wrong.

IO ACD, page 520 of 646 (aka 13-48) says:
Description:    The argument reqsize specifies the amount of data that the
	caller would like to write. It must be a multiple of 2 Kbytes, but
	is otherwise unconstrained. The data to write is in memory at the
	address specified by memaddr. The value of memaddr must be a multiple
	of 64 bytes. The address on the device medium, devaddr, must be 2
	Kbyte aligned. If the call returns a nonnegative status, the return
	parameter count is the number of bytes actually output; it must be a
	multiple of 2 Kbytes. If the call returns a negative status, the
	value of count and the data written are HVERSION dependent.

IO ACD, page 491 of 646 (aka 13-19) says:
13.3.8  Data Types
The data types of the standard arguments and return parameters are as follows:
 All signed integers are represented in two's complement (32-bit) format.
 The status value returned by all IODC entry points in GR28 is a signed integer.
 All addresses, which are passed as arguments, or returned as parameters, are 32-bit unsigned integers.
 The data type of ARG0 in all IODC entry points is a 32-bit unsigned integer.
 The data type of ARG1 in all IODC entry points is a 32-bit unsigned integer.

One might assume devaddr is treated as an "unsigned" integer.
But most older IODC are broken and treat it as a signed value.
(ie anything shipped before ~1996-1998)

I wouldn't trust newer boxes to get it right either.
Once you get ENTRY_IO_BOOT_OUT working, I suggest trying to
use ENTRY_IO_BBLOCK_OUT that's now defined in <asm/pdc.h> first
and if that fails (not implemented), fall back to ENTRY_IO_BOOT_OUT.

hth,
grant


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To: "Randolph Chung" <randolph@tausq.org>
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Hi Randolph,

>
>> Oops the 32bits kernel which I obtain, boot well on my b2k but ip connection
>> problem is always there: the system seems to loop somewhere with ssh (heart
>> bit seems life and no more response neither at serial console, neither
>at
>> ssh prompt) and telnet causes an HPMC (bus timeout?)
>
>looking up the iaoq and gr02 values reported in the hpmc in System.map 
>would be the first step...
>
Too bad, I forget to mentionned that I just read some HPMC messages on the
LCD display of my b2k and do not get any status dump info on console (which
just stay locked at login prompt). Do you think that kdb works now? (if yes
where can I learn how to get iaoq and gr02 info?)

Thanks a lot,
    Joel



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From: Randolph Chung <tausq@debian.org>
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> Too bad, I forget to mentionned that I just read some HPMC messages on the
> LCD display of my b2k and do not get any status dump info on console (which
> just stay locked at login prompt). Do you think that kdb works now? (if yes
> where can I learn how to get iaoq and gr02 info?)

at the firmware prompt, 'ser pim' will read the hpmc info that's stored
in pim.

kdb should work, although i haven't tried recently.

randolph


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Network Problems
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To: marc <marc@centraltx.com>
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Sounds like third bullet point on
<http://www.parisc-linux.org/release-0.9/errata-092.html>.  Is this an
old install (or a recent one from an old ISO)?

Richard


On Mon, Sep 02, 2002 at 11:38:20AM -0500, marc  wrote:
> Anyone have any ideas why I get innundated with these messages on
> startup and have to do a control-c to get past this part and continue booting?
> 
> Configuring network interfaces: eth0: Transceiver problem.
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
> skb: pf=2 (unowned) dev=lo len=328
> PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
> skb: pf=2 (unowned) dev=lo len=328
> PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
> skb: pf=2 (unowned) dev=lo len=328
> PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
> skb: pf=2 (unowned) dev=lo len=328
> PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
> skb: pf=2 (unowned) dev=lo len=328
> PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
> 
> ip_local_deliver: bad loopback skb: PRE_ROUTING LOCAL_IN 
> skb: pf=2 (unowned) dev=lo len=328
> PROTO=17 0.0.0.0:68 255.255.255.255:67 L=328 S=0x10 I=0 F=0x0000 T=16
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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On Tue, 3 Sep 2002 10:43:18 +0200
"Jorge GOMEZ CABELLO" <jorge.gomez@sanmina-sci.com> wrote:

> Dear Puffin,
> 
>     We are trying to install Debian 3.0 on our HP B2000/785 and it is impossible to recognize the usb keyboard. is there a special commando to introduced in the command line of the palo 1.0 ?

- This reply has been CC'd to the parisc-linux mailing list -

Hi Jorge,

If I remember correctly, the USB support is not enabled by default in the install kernel for Debian 3.0, and B2000 does use a USB keyboard.
We had such a problem here, and there is a solution: boot and install the box using the following lifimage:
http://pateam.esiee.fr/cd-images/lifimages/lifimage-2.4.18-pa46-USBSTI64-20020704.gz
This one has support for USB in both 32/64bit kernels, and what's more, STI console is supported in 64bit kernel. This will allow you to install the box directly with a 64bit kernel.

We may build a more recent lifimage with such USB/STI support soon.

Maybe we can also consider adding at least USB support to the default kernel configuration ? Richard, any comment ? :)

Greetings,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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Hello Thibaut,

>This one has support for USB in both 32/64bit kernels, and what's more,
STI
>console is supported in 64bit kernel.

May be an anoying question: is that STI console is supported on B2K (buildin
controler HPA4982A)

Thanks in advance for info,
    Joel



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Hello Randolph,

I need additional help.

>
>> Too bad, I forget to mentionned that I just read some HPMC messages on
>the
>> LCD display of my b2k and do not get any status dump info on console (which
>> just stay locked at login prompt). Do you think that kdb works now? (if
>yes
>> where can I learn how to get iaoq and gr02 info?)
>
>at the firmware prompt, 'ser pim' will read the hpmc info that's stored
>in pim.

Here is the pim I get (I do a clearpim before to be sure):

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp = 
  Tue Sep  3 14:26:13 GMT 2002    (20:02:09:03:14:26:13)

HPMC Chassis Codes = 2cbf0  2500b  2cbf4  2cbfc  

General Registers 0 - 31
00-03   0000000000000000  00000000103b7244  0000000010108064  00000000207f8000
04-07   00000000102b6800  00000000207fc940  00000000207f8000  0000000000000008
08-11   00000000107e2e94  00000000103b6e40  0000000000000400  00000000f0408cd8
12-15   00000000f0407ef0  000000001f1f86d0  00000000000020f8  0000000000035cec
16-19   00000000107fcdc0  0000000000017800  0000000000029494  ffffffffffffffff
20-23   000000000000000e  0000000000000000  0000000000004000  00000000102fd810
24-27   0000000000002a4f  00000000107fcdc0  000000000000000f  00000000102ea010
28-31   0000000000000030  0000000011430100  0000000011430340  00000000103bb010

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000634  0000000000000000  00000000000000c0  0000000000000017
12-15   0000000000000000  0000000000000000  0000000000107000  0000000000000000
16-19   0000007be95ffc60  0000000000000000  0000000010108638  000000000fa11288
20-23   0000000010240224  0000000048030104  000000000004000e  0000000080000000
24-27   0000000000305000  0000000000305000  0000000000044021  00000000f0412000
28-31   0000000055555555  0000000055555555  000000001f1f8000  00000000103a8000
Space Registers 0 - 7

00-03   00000000          0000031a          00000000          0000031a
04-07   00000000          00000000          00000000          00000000

<Press any key to continue (q to quit)> 

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x000000001010863c
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x003010bb
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00031800
System Responder Address     = 0xfffffffffed10200
System Requestor Address     = 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000  0000000000000000
04-07   00004000102fe810  000000011014cff4  f0000000102fe810  1037a010102de000
08-11   1030402000000002  0000000200000002  00000000102fd810  1039f810102fa810
12-15   103a00001079c000  0000000200000002  000000001039e264  102fa810103a0000
16-19   102fd8100000000b  103b6e4b102fdb28  0000000f103b6810  f00000000000000f
20-23   000000011039e000  f00000001013c70c  0000000000000008  0000000000000000
24-27   0000000a1fff90a0  0000999900000000  1079c00000000001  00001fb6102b6000
28-31   106b46a0102b61a8  1079c0001013e268  102fa810103a0000  100d4000100d45d0

<Press any key to continue (q to quit)> 


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81041000000000
Available Memory             = 0x0000000010000000
CPU Diagnose Register 2      = 0x0301000000000004
CPU Status Register 0        = 0x2420c20000000000
CPU Status Register 1        = 0x8080000000000000
SADD LOG                     = 0x000000004e657874
Read Short LOG               = 0xc1af00fffee00f28
ERROR_STATUS                 = 0x0000000000000010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0xc1bff0fffed08040
RUN_DATA_LOW                 = 0xc1bff0fffed08040
RUN_CTRL                     = 0x0000021c00001418
RUN_ADDR                     = 0xc1bff0fffed08040
System Responder Path        = 0x00ffffffffffffff


HPMC PIM Analysis Information:

Timestamp = 
  Tue Sep  3 14:26:13 GMT 2002    (20:02:09:03:14:26:13)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

A Data Miss Timeout occurred while CPU 0 was
requesting information.


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not log
any additional information about the HPMC.


Memory Error Log Information:

Timestamp = 
  Tue Sep  3 14:26:13 GMT 2002    (20:02:09:03:14:26:13)


'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:

   No memory errors logged


I/O Module Error Log Information:

Timestamp = 
  Tue Sep  3 14:26:13 GMT 2002    (20:02:09:03:14:26:13)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc009   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    ----------   0x4e0cc009   ------------------
   5    ----------   0x5e0cc009   ------------------
   6    ----------   0x6e0cc009   ------------------
   7    ----------   0x7e0cc009   ------------------
Service Menu: Enter command > 

Well I presume that gr02 is 10108064 (from:
General Registers 0 - 31
00-03   0000000000000000  00000000103b7244  0000000010108064  00000000207f8000)

But where is iaoq (I do not found in linux/Documentation/parisc)?

here is what I got: grep 101080 /boot/System.map-2.4.19-pa9
10108000 T syscall_exit_rfi
10108064 t intr_return
10108078 t intr_check_resched
10108084 t intr_check_sig
10108090 t intr_restore


>
>kdb should work, although i haven't tried recently.
>

I will try later if required.

Thanks in advance for additional help,
    Joel

PS: I try to attached a complete log of the crash sequence b2k.crash.doc


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Content-Type: application/msword
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="b2k.crash.doc"

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Subject: [parisc-linux] Unaligne access [was: Back to evms-1.0.1 && unaligne access && gdb ]
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Hello Grant,

>
>then I'll wager there is padding between the char and int fields
>of that struct.

That is also what I believe to understand.

>
...
>> What can I do to analyse this problem? (printing all p addresses and its
>> elements
>> during a run with the original code and compare with a run with modified
>> code?)
>
>yes. You want to verify the addreses are unaligned.

And here is some data of my analyse:

First surprise in the two case (original checks.c and my checks.c with only
"if (p->boot_ind != 0x00 && ") p addresses are exactly the same here is an
example:
with checks.c.orig:
dmesg
...
evms_vgscan(10137): unaligned access to 0x000272ee at ip=0x4020a2ab

corresponding adresses:
p            add: 0x272ee
p.boot_ind   add: 0x272ee
p.head       add: 0x272ef
p.sector     add: 0x272f0
p.cyl        add: 0x272f1
p.sys_ind    add: 0x272f2
p.end_head   add: 0x272f3
p.end_sector add: 0x272f4
p.end_cyl    add: 0x272f5
p.start_sect add: 0x272f6
p.nr_sects   add: 0x272fa

with the checks.c.new:
p            add: 0x272ee
p.boot_ind   add: 0x272ee
p.head       add: 0x272ef
p.sector     add: 0x272f0
p.cyl        add: 0x272f1
p.sys_ind    add: 0x272f2
p.end_head   add: 0x272f3
p.end_sector add: 0x272f4
p.end_cyl    add: 0x272f5
p.start_sect add: 0x272f6
p.nr_sects   add: 0x272fa

What do you think?

Thanks again for attention and help,
    Joel

PS1: just in case I made error here is the code I add to print addresses:
    printf("p            add: %p\n", p);
    printf("p.boot_ind   add: %p\n", &(p->boot_ind));
    printf("p.head       add: %p\n", &(p->head));
    printf("p.sector     add: %p\n", &(p->sector));
    printf("p.cyl        add: %p\n", &(p->cyl));
    printf("p.sys_ind    add: %p\n", &(p->sys_ind));
    printf("p.end_head   add: %p\n", &(p->end_head));
    printf("p.end_sector add: %p\n", &(p->end_sector));
    printf("p.end_cyl    add: %p\n", &(p->end_cyl));
    printf("p.start_sect add: %p\n", &(p->start_sect));
    printf("p.nr_sects   add: %p\n", &(p->nr_sects));

PS2: If you think it could help you more, I can send you the complete logs
I get from the two runs as well as sources



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> General Registers 0 - 31
> 00-03   0000000000000000  00000000103b7244  0000000010108064  00000000207f8000
                                              ^^^^^^^^^^^^^^^^ GR02, aka
                                              the return pointer

> Control Registers 0 - 31
> 00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
> 08-11   0000000000000634  0000000000000000  00000000000000c0  0000000000000017
> 12-15   0000000000000000  0000000000000000  0000000000107000  0000000000000000
> 16-19   0000007be95ffc60  0000000000000000  0000000010108638  000000000fa11288
                                                                ^^^^^^^^^^^^^^^^
cr19 is the "IIR", this is the insn that caused the fault
in this case, this insn is stw r1,4(sr0,r29)


> 20-23   0000000010240224  0000000048030104  000000000004000e  0000000080000000
> 24-27   0000000000305000  0000000000305000  0000000000044021  00000000f0412000
> 28-31   0000000055555555  0000000055555555  000000001f1f8000  00000000103a8000
                            ^^^^^^^^^^^^^^^^ which looks quite bogus

> IIA Space                    = 0x0000000000000000
> IIA Offset                   = 0x000000001010863c
this is the "iaoq" -- the instruction pointer

> But where is iaoq (I do not found in linux/Documentation/parisc)?
> 
> here is what I got: grep 101080 /boot/System.map-2.4.19-pa9
> 10108000 T syscall_exit_rfi
> 10108064 t intr_return
> 10108078 t intr_check_resched
> 10108084 t intr_check_sig
> 10108090 t intr_restore

is this the system.map from the kernel you are building?
if it is, then intr_return is the calling function (one up in the
stack). the function that includes 1010863c is the one that one that's
causing the fault. that would be one place to look.

hth
randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] Re: Unaligne access [was: Back to evms-1.0.1 && unaligne access && gdb ]
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jsoe0708@tiscali.be wrote:
...
> And here is some data of my analyse:
> 
> First surprise in the two case (original checks.c and my checks.c with only
> "if (p->boot_ind != 0x00 && ") p addresses are exactly the same here is an
> example:

...
> with the checks.c.new:
> p            add: 0x272ee
> p.boot_ind   add: 0x272ee
> p.head       add: 0x272ef
> p.sector     add: 0x272f0
> p.cyl        add: 0x272f1
> p.sys_ind    add: 0x272f2
> p.end_head   add: 0x272f3
> p.end_sector add: 0x272f4
> p.end_cyl    add: 0x272f5
> p.start_sect add: 0x272f6
> p.nr_sects   add: 0x272fa
> 
> What do you think?

checks.c.new will generate a "misaligned access" when "p.start_sect"
is accessed. 0x272f6 is aligned on 2byte address, not 4 byte.
Ditto for "p.nr_sects".

You sure checks.c.new is referencing 0x272f6 and not something else?
You reviewed dmesg output?

...
> PS1: just in case I made error here is the code I add to print addresses:

printf's look right.

> PS2: If you think it could help you more, I can send you the complete logs
> I get from the two runs as well as sources

thanks but no. I'm just trying to help you understand "unaligned access".

grant


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Subject: [parisc-linux] Re: Unaligne access [was: Back to evms-1.0.1 && unaligne access && gdb ]
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> >then I'll wager there is padding between the char and int fields
> >of that struct.
> 
> That is also what I believe to understand.

Unlikely.  The unaligned trap handler in the kernel is probably
fixing the unaligned access.  You need to look in the kernel log
to see if this is happening.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


From - Thu Nov 08 21:24:24 2018
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From: Timothy Ball <timball@tux.org>
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Subject: [parisc-linux] [OT] klez virus
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So it seems that a couple of people on this list have been hit w/ this
little stupid windows virus. Not that it's actually possible for anyone
running linux, but the virus is sneaky and likes to forge "From:"
lines...

So here's a little thing I've prepared to help people on list figure out
what they have to do:

--snip--snip--snip--
Both you and I have been targeted by the klez virus, it is a virus that
fakes email "From:" headers to mask the true origin of what computer actually
sent you the virus. I assure you that there is very little way *I* could have
this virus. The virus targets microsoft outlook users and internet explorer 
users, and since I use linux there is very little chance that the virus 
came from me.

Read more about the virus at and how it infects and spreads at (the jmu 
article geared towards students is probably the best): 

http://www.jmu.edu/computing/security/info/klez.shtml
http://www.wired.com/news/technology/0,1282,52174,00.html
http://www.messagelabs.com/viruseye/

The jmu article will explain how to best track down who actually sent 
you a copy of the virus. Once the actual person responsible for infection 
is found they can use the freely available klez virus remover from symantec:

http://securityresponse.symantec.com/avcenter/venc/data/w32.klez.removal.tool.html

It's not me, it's the virus.

--timball
--snip--snip--snip--


-- 
	GPG key available on pgpkeys.mit.edu
pub  1024D/511FBD54 2001-07-23 Timothy Lu Hu Ball <timball@tux.org>
Key fingerprint = B579 29B0 F6C8 C7AA 3840  E053 FE02 BB97 511F BD54


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From: Steve.Grady@csiro.au
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Subject: [parisc-linux] IPL Boot Parameters [Originally SCSI Disks on a K5
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I have been trying to load debian 3.0 onto my K580 and going around in
circles.

My problem is that I only have disks available that will work on the Single
ended SCSI bus.
The Ultra Wide bus, as has been pointed out previously, is HVD not LVD and I
do not have HVD drives
and they are not easily obtainable at a reasonable price here in Australia.

The PDC will not recognise HD's on the SE bus it will scan them but IMHO the
firmware is set to only
recognise  and use the CD and the DDS-3 tape drive. The kernel, booted from
the CD, will recognise the HD
on the SE bus and will load Linux onto the drive but at reboot time I cannot
find the drive.

It was previously suggested that I boot from the tape which I can do using
the following Lif image
lifimage-2.4.18-pa59-PDC-20020728 but this brings me back to the debian
startup screen for HD initialisation
not the script to setup the system (password and extra packages etc).

I have been going around in circles playing with the IPL boot parameters (
like specifying root=/dev/sds3 deleting initrd etc) trying to get it to
continue setup but unsuccessfully.

Does anyone know, using the above LIF image, what IPL boot parameters to
specify to get it to continue an installation on /dev/sda3 root file system.
Or else what do I load on the tape drive ?

Any help would be appreciated or else I will have to get a HVD SCSI drive.

Thanks,


Steve Grady



> 
> --- Steve.Grady@csiro.au wrote:
> > 
> > 
> > > -----Original Message-----
> > > From: Averell Eisner [mailto:a_eisner@eisner.com]
> > > Sent: Monday, 26 August 2002 8:27 AM
> > > To: Steve.Grady@csiro.au
> > > Cc: parisc-linux@lists.parisc-linux.org
> > > Subject: Re: [parisc-linux] SCSI Disks on a K580 Help Required
> > > 
> > > 
> > > Possible issues:
> > > 
> > > "First try." The internal disk drives in the K580 are fast wide 
> > > differential. The differential is high voltage differential, not
> > low 
> > > voltage differential. Could be that the Maxtor 4.5GB UW is 
> > > the wrong type.
> > 
> > 
> > Well I hope I have not damaged the drive
> > 
> > 
> > > 
> > > "Second try." The normal cable in the K580 that goes to the 
> > > tape and CD 
> > > only has two open scsi connections plus the terminator. One 
> > > connection 
> > > for tape, another for the CD. Did you substitute another 
> cable with
> > a 
> > > third open scsi connection?
> > 
> > 
> > Yes I substituted another cable (It did not come with any cables,
> > they were
> > removed with the drive)
> > It was properly terminated by an external terminator. As I 
> said after
> > boot
> > from the CD a drive on the
> > single ended bus was detected ( and the CD and Tape) by the kernel
> > but was
> > not detected by boot.
> > 
> > It has been suggested by someone else (they did not reply to list)
> > that I
> > boot from CD which seems to me
> > the easiest work-around.
> > 
> > Thank for the assistance,
> > 
> > 
> > Steve Grady
> > 
> > > 
> > > Just guessing.
> > > 
> > > Averell
> > > Steve.Grady@csiro.au wrote:
> > > 
> > > > Hi,
> > > > 
> > > > I got my hands on a K580 Quad processors, 4G Ram, CD, DDS3 
> > > Tape drive,
> > > > 2 Fibre Channels on HSC, Dual 100BaseT network 
> connectors on HSC,
> > > > FW SCSI on HSC and 2 SCSI interface on HPPB (OK I know the 
> > > HPPB is not
> > > > supported)
> > > > but no hard disks.
> > > > 
> > > > Previously I have installed PA-Linux on a 735/125.
> > > > 
> > > > I am trying to install 
> > > palinux-2.4.18-pa59-ppc-20020728-netinstall image on
> > > > the K580
> > > > I am using a variety of SCSI disks I am trying to install 
> > > to but I am having
> > > > problems.
> > > > 
> > > > The disks are being installed internally on the K580. I 
> > > have downloaded the
> > > > users guide
> > > > from docs.hp.com.
> > > > 
> > > > First Try
> > > > 
> > > > I installed Tape and CD to Single ended bus of the Disk 
> > > cage and install a
> > > > Maxtor Altas II
> > > > 4.5G UW to ultra wide bus of Disk Cage and yes the cable 
> > > was terminated.
> > > > 
> > > > The boot process found the CD, DDS3 but not the disk. I 
> > > could boot from CD
> > > > but the installer 
> > > > complained about on disk.
> > > > 
> > > > Second Try
> > > > 
> > > > I installed Tape and CD to Single ended bus of the Disk 
> > > cage and install a
> > > > Seagate
> > > > 2.1G SE to SE bus of Disk Cage in parallel with the CD and Tape.
> > > > 
> > > > The boot process found the CD, DDS3 but not the disk. I 
> > > could boot from CD
> > > > but the installer 
> > > > found the disk CD and Tape. I installed to disk and at 
> > > reboot boot could not
> > > > find the disk
> > > > only the tape and the CD.
> > > > 
> > > > All other trys
> > > > 
> > > > I have tried various combinations but have not succeed in 
> > > get the boot to
> > > > recognised the
> > > > hard disk. I cannot get Pa-linux to recognised the Ultra 
> > > Wide bus which
> > > > leaves me to question
> > > > whether it is supported or do I have a hardware problem.
> > > > 
> > > > The Boot reports through its Search for Boot devices 
> > > function that it finds
> > > > 
> > > > The 2 FC devices
> > > > the Lan (which I assume is the 10BaseT on the Core IO not 
> > > the 100BaseT)
> > > > a sequential device (Tape Drive)
> > > > a random device (CD)
> > > > 
> > > > The primary boot device at present seems to me to be set up 
> > > for the Fibre
> > > > Channel
> > > > (I think the I am not used to the addressing).
> > > > 
> > > > I have thought of Rboot or tftboot the K580 from the 
> > > 735 and then the
> > > > kernel will
> > > > recognise the disk. But this is not useful in the long 
> > > term as I may get
> > > > rid of the 735
> > > > and my Intel box which is my main server as I want to make 
> > > the K580 my main
> > > > server.
> > > > 
> > > > Any help or suggestions would be appreciated,
> > > > 
> > > > 
> > > > Steve Grady
> > > > 
> > > > BTW Thanks for a great port my little 735 just sits there 
> > > and works (mostly
> > > > running SETI)
> > > > _______________________________________________
> > > > parisc-linux mailing list
> > > > parisc-linux@lists.parisc-linux.org
> > > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > > > 
> > > > 
> > > 
> > > 
> > > -- 
> > > Averell
> > > 
> > > Eisner Associates, Inc.			Phone: 908-233-6585
> > > 516 North Ave. East			FAX:   908-233-0710
> > > P.O. Box 2489
> > > Westfield, NJ 07090
> > > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Finance - Get real-time stock quotes
> http://finance.yahoo.com
> 


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> My problem is that I only have disks available that 
> will work on the Single ended SCSI bus.

Where did the original hard disk that came with the machine go?

Maybe you can get a small UW SCSI hard disk cheap from eBay or something
like that and use it for the root partition only. A few hundred MB's
would suffice.

Cheers,
Tobias



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> -----Original Message-----
> From: Tobias Giesen [mailto:tobias_subscriber@tgtools.com]
> Sent: Wednesday, 4 September 2002 12:23 PM
> To: parisc-linux@lists.parisc-linux.org
> Subject: RE: [parisc-linux] IPL Boot Parameters [Originally SCSI Disks
> on a K580 Help Required]
> 
> 
> > My problem is that I only have disks available that 
> > will work on the Single ended SCSI bus.
> 
> Where did the original hard disk that came with the machine go?

I bought the K580 without it I have approached the guy I bought it from to
see if I
can purchase the drive but he has not followed it up yet.

I have looked on ebay but HVD UW SCSI disks are rare most are SCSI-3 LVD/SE
disks
and HVD is not compatible with LVD except by a translator which costs about
$1.5K AUD which
was more than I paid for the K580.

I know I should be able to boot from the tape (maybe I am a masochist) I
think this is my best shot
until I can find a HVD disk, if I can work out to tell the system how.

Thanks,


Steve Grady



> 
> Maybe you can get a small UW SCSI hard disk cheap from eBay 
> or something
> like that and use it for the root partition only. A few hundred MB's
> would suffice.
> 
> Cheers,
> Tobias
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


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This is a multi-part message in MIME format.
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	Hi
I'm really surprised, I take a look at HPMC trace, and I was really
surprised of the faulty address. So I try to write on console.
And I m really surprised by the result:
PAGE0->mem_cons.hpa: 0x2000
PAGE0->mem_boot.hpa: 0x900
PAGE0->mem_kbd.hpa: 0xffffffff 

It is not good at all !!! It seems to be completly wrong hpa !!!!
The good one for mem_boot.hpa must be: 0xfffffffffed30000 (in my case
according to dmesg and mapio). But the system has boot,
so it was correct a few time ago. I'll retry by using my own
hpa and I'll don't trust anymore PAGE0.

	Bye.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] IPL Boot Parameters [Originally SCSI Disks on a K580 Help Required]
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Steve.Grady@csiro.au wrote:
> and HVD is not compatible with LVD except by a translator which costs
> about $1.5K AUD which was more than I paid for the K580.

I didn't believe you until I found:
http://members.ozemail.com.au/~jwk200/images/paralan -SRP pricelist 2002.pdf

You might try to order HDs here:
	http://www.weirdstuff.com/

They've got "Compaq" C2490A and "HP" C2490-60062 (both 2.1GB) for $40.
You want "C2490WD" model - just like Seagate drives have "WD" for HVD.

Or the ST32550WD for $22 seems like a winner:
http://liquidationetc.safeshopper.com/32/15179.htm?103

grant


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Subject: Re: [parisc-linux] iodc call and HPMC: dump driver.
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Bruno Vidal wrote:
> This is a multi-part message in MIME format.
> --------------9FA0B36E1D5BF1A98D31930A
> Content-Type: text/plain; charset=us-ascii
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> 
> 	Hi
> I'm really surprised, I take a look at HPMC trace, and I was really
> surprised of the faulty address. So I try to write on console.
> And I m really surprised by the result:
> PAGE0->mem_cons.hpa: 0x2000
> PAGE0->mem_boot.hpa: 0x900
> PAGE0->mem_kbd.hpa: 0xffffffff 

Which model machine is this from?

> It is not good at all !!! It seems to be completly wrong hpa !!!!

Note that "hpa" might just be a "handle" and not a real physical address.
It depends on the firmware. Usually it's the physical address though.
I think something else is wrong with your definition or something.

PAGE0 is used in arch/parisc/kernel/firmware.c, inventory.c, pdc_cons.c
and it works in those locations.

> The good one for mem_boot.hpa must be: 0xfffffffffed30000 (in my case
> according to dmesg and mapio). But the system has boot,

No - it doesn't have to be.

> so it was correct a few time ago. I'll retry by using my own
> hpa and I'll don't trust anymore PAGE0.

Well, modify palo to dump interesting page zero values and then
you'll know what they are supposed to be. I'm pretty sure
firmware sets that up.

hth,
grant


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Subject: [parisc-linux] Re: Unaligne access [was: Back to evms-1.0.1 && unaligne access && gdb ]
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Dave,
>
>
>> >then I'll wager there is padding between the char and int fields
>> >of that struct.
>> 
>> That is also what I believe to understand.
>
>Unlikely.  The unaligned trap handler in the kernel is probably
>fixing the unaligned access.  You need to look in the kernel log
>to see if this is happening.
>
Nothing to notice about unalign access kernel trap in any /var/log files
(with checks.c.new) Is there some "debug" #define to set to increase verbosity
of this trap?

Thanks a lot,
    Joel



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Subject: [parisc-linux] Re: Unaligne access [was: Back to evms-1.0.1 && unaligne access && gdb ]
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>jsoe0708@tiscali.be wrote:
>...
>> And here is some data of my analyse:
>> 
>> First surprise in the two case (original checks.c and my checks.c with
>only
>> "if (p->boot_ind != 0x00 && ") p addresses are exactly the same here is
>an
>> example:
>
>...
>> with the checks.c.new:
>> p            add: 0x272ee
>> p.boot_ind   add: 0x272ee
>> p.head       add: 0x272ef
>> p.sector     add: 0x272f0
>> p.cyl        add: 0x272f1
>> p.sys_ind    add: 0x272f2
>> p.end_head   add: 0x272f3
>> p.end_sector add: 0x272f4
>> p.end_cyl    add: 0x272f5
>> p.start_sect add: 0x272f6
>> p.nr_sects   add: 0x272fa
>> 
>> What do you think?
>
>checks.c.new will generate a "misaligned access" when "p.start_sect"
>is accessed. 0x272f6 is aligned on 2byte address, not 4 byte.
>Ditto for "p.nr_sects".
>
(now I have understand, well I think :) )

>You sure checks.c.new is referencing 0x272f6 and not something else?

For this I will have to find all call to this function and write p.start_sect
address and content before.

(very tricky problem to surround isn'it ;<) )

>You reviewed dmesg output?

Yes (I have a mincom 'screen' on this system console and I also examine kern.log
as recall Dave)


Many thanks,
    Joel

PS: In the mean time I learn that this bug was already fix by:
BOOLEAN isa_null_partition_record(struct partition *p)
{
    int          i;
    u_int8_t    *uip = (u_int8_t *) p;
    int          psize = sizeof(struct partition);

    for (i=0; i<psize; i++) {
        if (*(uip+i) != 0x00) return FALSE;
    }

    return TRUE;
}

but not yet comited :?



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On Tue, Sep 03, 2002 at 12:51:43PM +0200, Thibaut VARENE wrote:
> On Tue, 3 Sep 2002 10:43:18 +0200
> "Jorge GOMEZ CABELLO" <jorge.gomez@sanmina-sci.com> wrote:
> 
> > Dear Puffin,
> > 
> >     We are trying to install Debian 3.0 on our HP B2000/785 and it is impossible to recognize the usb keyboard. is there a special commando to introduced in the command line of the palo 1.0 ?
> 
> - This reply has been CC'd to the parisc-linux mailing list -
> 
> Hi Jorge,
> 
> If I remember correctly, the USB support is not enabled by default in the install kernel for Debian 3.0, and B2000 does use a USB keyboard.
> We had such a problem here, and there is a solution: boot and install the box using the following lifimage:
> http://pateam.esiee.fr/cd-images/lifimages/lifimage-2.4.18-pa46-USBSTI64-20020704.gz
> This one has support for USB in both 32/64bit kernels, and what's more, STI console is supported in 64bit kernel. This will allow you to install the box directly with a 64bit kernel.
> 
> We may build a more recent lifimage with such USB/STI support soon.
> 
> Maybe we can also consider adding at least USB support to the default kernel configuration ? Richard, any comment ? :)

I think we should add usb and 64 bit sti to default and debian configs.
I guess we'll find out soon enough if it casues problems on other
systems.

Maybe it's time we considered an initrd boot process and kernel modules
for some of this stuff.  May not be worth the effort in 2.4 though.

Richard



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	The keyboard works with this lifimage.

	Thanks a lot for your colaboration.

	Jorge.


-----Mensaje original-----
De: Richard Hirst [mailto:rhirst@linuxcare.com]
Enviado el: miercoles, 04 de septiembre de 2002 8:21
Para: Thibaut VARENE
CC: Jorge GOMEZ CABELLO; parisc-linux@lists.parisc-linux.org
Asunto: Re: [parisc-linux] Re: PALO-text


On Tue, Sep 03, 2002 at 12:51:43PM +0200, Thibaut VARENE wrote:
> On Tue, 3 Sep 2002 10:43:18 +0200
> "Jorge GOMEZ CABELLO" <jorge.gomez@sanmina-sci.com> wrote:
>
> > Dear Puffin,
> >
> >     We are trying to install Debian 3.0 on our HP B2000/785 and it is
impossible to recognize the usb keyboard. is there a special commando to
introduced in the command line of the palo 1.0 ?
>
> - This reply has been CC'd to the parisc-linux mailing list -
>
> Hi Jorge,
>
> If I remember correctly, the USB support is not enabled by default in the
install kernel for Debian 3.0, and B2000 does use a USB keyboard.
> We had such a problem here, and there is a solution: boot and install the
box using the following lifimage:
>
http://pateam.esiee.fr/cd-images/lifimages/lifimage-2.4.18-pa46-USBSTI64-200
20704.gz
> This one has support for USB in both 32/64bit kernels, and what's more,
STI console is supported in 64bit kernel. This will allow you to install the
box directly with a 64bit kernel.
>
> We may build a more recent lifimage with such USB/STI support soon.
>
> Maybe we can also consider adding at least USB support to the default
kernel configuration ? Richard, any comment ? :)

I think we should add usb and 64 bit sti to default and debian configs.
I guess we'll find out soon enough if it casues problems on other
systems.

Maybe it's time we considered an initrd boot process and kernel modules
for some of this stuff.  May not be worth the effort in 2.4 though.

Richard



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>> But where is iaoq (I do not found in linux/Documentation/parisc)?
>> 
>> here is what I got: grep 101080 /boot/System.map-2.4.19-pa9
>> 10108000 T syscall_exit_rfi
>> 10108064 t intr_return
>> 10108078 t intr_check_resched
>> 10108084 t intr_check_sig
>> 10108090 t intr_restore
>
>is this the system.map from the kernel you are building?
>if it is, then intr_return is the calling function (one up in the
>stack). the function that includes 1010863c is the one that one that's
>causing the fault. that would be one place to look.
>

Hmm the only entry I found concerning intr_return are content into entry.S.

Sorry for the moment I have not enough time to learn parisc asm, how is it
implemented with gcc and how to interface with C, ...

Thanks anyway for all help,
    Joel


Big Brother Anders  - With Tiscali you will see it all !  Check it up on
 www.tiscali.be/bigbrother




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Subject: [parisc-linux] Re: Unaligne access [was: Back to evms-1.0.1 && unaligne access && gdb ]
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>>jsoe0708@tiscali.be wrote:
>>...
>>> And here is some data of my analyse:
>>> 
>>> First surprise in the two case (original checks.c and my checks.c with
>>only
>>> "if (p->boot_ind != 0x00 && ") p addresses are exactly the same here
is
>>an
>>> example:
>>
>>...
>>> with the checks.c.new:
...
>>
>>checks.c.new will generate a "misaligned access" when "p.start_sect"
>>is accessed. 0x272f6 is aligned on 2byte address, not 4 byte.
>>Ditto for "p.nr_sects".
>>
>(now I have understand, well I think :) )
>
>>You sure checks.c.new is referencing 0x272f6 and not something else?
>
>For this I will have to find all call to this function and write p.start_sect
>address and content before.
>
>(very tricky problem to surround isn'it ;<) )
>
And so here is a test (where an unaligne access did not occurs where it would??):
(isa_valid_partition_record) file checks.c
### before the call ###
part.start_sect add: 0x242a6
part.start_sect    : 9439488   [1]
part.nr_sects   add: 0x242aa
part.nr_sects      : 15791872  [2]
### Into the function isa_null_partition_record() ###
p            add: 0x2429e
p.boot_ind   add: 0x2429e
p.head       add: 0x2429f
p.sector     add: 0x242a0
p.cyl        add: 0x242a1
p.sys_ind    add: 0x242a2
p.end_head   add: 0x242a3
p.end_sector add: 0x242a4
p.end_cyl    add: 0x242a5
p.start_sect add: 0x242a6
p.start_sect    : 9439488      [3]
p.nr_sects   add: 0x242aa
p.nr_sects      : 15791872     [4]

As far as I can see [1] and [3] (as well as [2] and [4]) seems to show that
it point actualy to the same thing.

And here is an other sample:

(isa_valid_partition_record) file checks.c
part.start_sect add: 0x24556
part.start_sect    : 536870912
part.nr_sects   add: 0x2455a
part.nr_sects      : 3768004864
p            add: 0x2454e
p.boot_ind   add: 0x2454e
p.head       add: 0x2454f
p.sector     add: 0x24550
p.cyl        add: 0x24551
p.sys_ind    add: 0x24552
p.end_head   add: 0x24553
p.end_sector add: 0x24554
p.end_cyl    add: 0x24555
p.start_sect add: 0x24556
p.start_sect    : 536870912
p.nr_sects   add: 0x2455a
p.nr_sects      : 3768004864
p            add: 0x2454e
p.boot_ind   add: 0x2454e
p.head       add: 0x2454f
p.sector     add: 0x24550
p.cyl        add: 0x24551
p.sys_ind    add: 0x24552
p.end_head   add: 0x24553
p.end_sector add: 0x24554
p.end_cyl    add: 0x24555
p.start_sect add: 0x24556
p.start_sect    : 536870912
p.nr_sects   add: 0x2455a
p.nr_sects      : 3768004864

Joel



Big Brother Anders  - With Tiscali you will see it all !  Check it up on
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Hi,

I just tried to get XFS working on my C200 (I've got a new IBM SCSI disk.) and
mkfs.xfs always got the size of the Device (/dev/sda5) wrong. (it complained
about not getting with lseek64 to that position...)
(I don't have the correct error message ready, but I can check, if its needed)

After I changed the libxfs to only use the BLKGETSIZE64 ioctl, it works fine
now. (Eric Sandeen pointed me to this)

So he said, perhaps there is a bug in the SCSI (lasi?) driver.

bye

Stefan

P.S.: I'm using 2.4.19-pa9 with a self made diff from vanilla 2.4.19 against
XFS CVS. (the patch did in nearly cleanly)
-- 
        http://www.dreamind.de/
Oroborus and Debian GNU/Linux Developer.


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Subject: Re: [parisc-linux] Re: Unaligne access [was: Back to evms-1.0.1 && unaligne access && gdb ]
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> >Unlikely.  The unaligned trap handler in the kernel is probably
> >fixing the unaligned access.  You need to look in the kernel log
> >to see if this is happening.
> >
> Nothing to notice about unalign access kernel trap in any /var/log files
> (with checks.c.new) Is there some "debug" #define to set to increase verbosity
> of this trap?

no, it will log by default.. nothing to configure.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Stefan Pfetzing wrote:
> mkfs.xfs always got the size of the Device (/dev/sda5) wrong. (it complained
> about not getting with lseek64 to that position...)
...
> So he said, perhaps there is a bug in the SCSI (lasi?) driver.

I don't think it's the driver.

lseek64 must be getting redirected to lseek().
Linux kernel only supports "lseek".
See "struct file_operations" in include/linux/fs.h.

loff_t is a 64-bit type.
include/linux/types.h:typedef __kernel_loff_t           loff_t;
include/asm/posix_types.h:typedef long long             __kernel_loff_t;

> P.S.: I'm using 2.4.19-pa9 with a self made diff from vanilla 2.4.19 against
> XFS CVS. (the patch did in nearly cleanly)

Are you running 32-bit or 64-bit kernel?
I want to know if arch/parisc/kernel/sys_parisc32.c might be the problem.

grant


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Le mercredi 4 septembre 2002, =E0 08:21 , Richard Hirst a =E9crit :

> On Tue, Sep 03, 2002 at 12:51:43PM +0200, Thibaut VARENE wrote:
>> On Tue, 3 Sep 2002 10:43:18 +0200
>> "Jorge GOMEZ CABELLO" <jorge.gomez@sanmina-sci.com> wrote:
>>
>>> Dear Puffin,
>>>
>>>     We are trying to install Debian 3.0 on our HP B2000/785 and it =
is=20
>>> impossible to recognize the usb keyboard. is there a special =
commando=20
>>> to introduced in the command line of the palo 1.0 ?
>>
>> - This reply has been CC'd to the parisc-linux mailing list -
>>
>> Hi Jorge,
>>
>> If I remember correctly, the USB support is not enabled by default in=20=

>> the install kernel for Debian 3.0, and B2000 does use a USB keyboard.
>> We had such a problem here, and there is a solution: boot and install=20=

>> the box using the following lifimage:
>> http://pateam.esiee.fr/cd-
>> images/lifimages/lifimage-2.4.18-pa46-USBSTI64-20020704.gz
>> This one has support for USB in both 32/64bit kernels, and what's=20
>> more, STI console is supported in 64bit kernel. This will allow you =
to=20
>> install the box directly with a 64bit kernel.
>>
>> We may build a more recent lifimage with such USB/STI support soon.
>>
>> Maybe we can also consider adding at least USB support to the default=20=

>> kernel configuration ? Richard, any comment ? :)
>
> I think we should add usb and 64 bit sti to default and debian =
configs.
> I guess we'll find out soon enough if it casues problems on other
> systems.
Done: support for USB input has been added as default for both 32 and 64=20=

bit kernel,
and support for both STI_CONSOLE and STI_FB has beed added as default=20
for 64 bit kernel,
since -pa10.

pa10 netinst/lifimage are available on=20
http://pateam.esiee.fr/download.html
(and soon on dsl2) :)

Feedback would be appreciated.
>
> Maybe it's time we considered an initrd boot process and kernel =
modules
> for some of this stuff.  May not be worth the effort in 2.4 though.
>
> Richard
>
>
Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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> I don't think it's the driver.

no, not the driver...

> lseek64 must be getting redirected to lseek().
> Linux kernel only supports "lseek".

lseek64 is translated to a sys_llseek (you can see that with strace). 

> See "struct file_operations" in include/linux/fs.h.
> loff_t is a 64-bit type.
> include/linux/types.h:typedef __kernel_loff_t           loff_t;
> include/asm/posix_types.h:typedef long long             __kernel_loff_t;

we need to do some tricks to get this right ... some of the other
syscalls are fixed, but this one is not it seems.

> I want to know if arch/parisc/kernel/sys_parisc32.c might be the problem.

fwiw sys_llseek is not translated.

randolph


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Hi,

* Grant Grundler <grundler@dsl2.external.hp.com> [020904 18:51]:
> Stefan Pfetzing wrote:
[snip]
> > P.S.: I'm using 2.4.19-pa9 with a self made diff from vanilla 2.4.19 against
> > XFS CVS. (the patch did in nearly cleanly)
> 
> Are you running 32-bit or 64-bit kernel?
> I want to know if arch/parisc/kernel/sys_parisc32.c might be the problem.
I'm running a 32bit kernel, since some time ago I had problems with 64bit and
cdrecord.

bye

Stefan

-- 
        http://www.dreamind.de/
Oroborus and Debian GNU/Linux Developer.


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I have just implemented some fixes and changed the long double size
to 128 bits on the hppa64 GCC ports.  For parisc-linux, the long double
support should be 128 bits (both for 32 and 64 bit) but we are currently
stuck at 64 bits because we are missing a bunch of quad library calls:

_U_Qfadd, _U_Qfsub, _U_Qfmpy, _U_Qfdiv, _U_Qfneg, _U_Qfsqrt, _U_Qfabs,
_U_Qfmin, _U_Qfmax, _U_Qfcnvff_sgl_to_quad, _U_Qfcnvff_dbl_to_quad,
_U_Qfcnvff_quad_to_sgl, _U_Qfcnvff_quad_to_dbl, _U_Qfcnvxf_sgl_to_quad,
_U_Qfcnvxf_dbl_to_quad, _U_Qfcnvfxt_quad_to_sgl, _U_Qfcnvfxt_quad_to_usgl,
_U_Qfcnvfxt_quad_to_udbl, _U_Qfcnvfxt_quad_to_dbl, _U_Qfeq, _U_Qfne,
_U_Qfgt, _U_Qfge, _U_Qflt, _U_Qfle.

There are probably some more for unordered comparisons.

Any chance that someone with contacts inside HP, might be able to
obtain the source code for these functions?  They are really part
of the ABI.

While it's relatively straightforward to implement these using the
quad-precision instructions in the PA 2.0 architecture for the 64-bit
port, it's non trivial to implement them for earlier architectures
using the 32-bit port.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> I have just implemented some fixes and changed the long double size
> to 128 bits on the hppa64 GCC ports.  For parisc-linux, the long double
> support should be 128 bits (both for 32 and 64 bit) but we are currently
> stuck at 64 bits because we are missing a bunch of quad library calls:
> 
> _U_Qfadd, _U_Qfsub, _U_Qfmpy, _U_Qfdiv, _U_Qfneg, _U_Qfsqrt, _U_Qfabs,
> _U_Qfmin, _U_Qfmax, _U_Qfcnvff_sgl_to_quad, _U_Qfcnvff_dbl_to_quad,
> _U_Qfcnvff_quad_to_sgl, _U_Qfcnvff_quad_to_dbl, _U_Qfcnvxf_sgl_to_quad,
> _U_Qfcnvxf_dbl_to_quad, _U_Qfcnvfxt_quad_to_sgl, _U_Qfcnvfxt_quad_to_usgl,
> _U_Qfcnvfxt_quad_to_udbl, _U_Qfcnvfxt_quad_to_dbl, _U_Qfeq, _U_Qfne,
> _U_Qfgt, _U_Qfge, _U_Qflt, _U_Qfle.
> 
> There are probably some more for unordered comparisons.
> 
> Any chance that someone with contacts inside HP, might be able to
> obtain the source code for these functions?  They are really part
> of the ABI.
> 
> While it's relatively straightforward to implement these using the
> quad-precision instructions in the PA 2.0 architecture for the 64-bit
> port, it's non trivial to implement them for earlier architectures
> using the 32-bit port.
> 
> Dave

Randolph and I were discussing borrowing from gmp to implement some of 
these for the earlier 32-bit processors. Thought it seems that this may
break the HPUX compatibility? 

gmp seems to have support for:

	add, sub, multiply, div, neg, sqrt, abs, min, max
	equals, not-equals, greater-than, greather-than-or-equal,
	less-than, less-than-or-equal.	

The 'cnv' functions need to be addressed:

	single -> quad
	double -> quad
	quad   -> single
	quad   -> double
	quad   -> unsigned single
	quad   -> unsigned double

Under certain conditions of float-float, float-fixed, float-fixed&truncate.
This will have to follow the HPUX convention?

c.



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> Randolph and I were discussing borrowing from gmp to implement some of 
> these for the earlier 32-bit processors. Thought it seems that this may
> break the HPUX compatibility? 

I would guess that that the best compatibility would be obtained with
the HP functions.  As far as I can tell, gmp does not use IEEE standard
data types.  Thus, concepts of nans, snans, unordered if present at
all in gmp would differ.

GCC can only deal with floating data in IEEE format.  So, conversion
would have to be done for all operations.

I presume that the HPUX compatibility is just for static binaries
(i.e., there is no shared library support).  In this case, the routines
would be compiled into hpux binaries.  So, I don't think much additional
would be needed at an os level.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hum, replying to myself...

* Stefan Pfetzing <dreamind@dreamind.de> [020904 20:28]:
> * Grant Grundler <grundler@dsl2.external.hp.com> [020904 18:51]:
> > Stefan Pfetzing wrote:
> [snip]
> > > P.S.: I'm using 2.4.19-pa9 with a self made diff from vanilla 2.4.19 against
> > > XFS CVS. (the patch did in nearly cleanly)
> > 
> > Are you running 32-bit or 64-bit kernel?
> > I want to know if arch/parisc/kernel/sys_parisc32.c might be the problem.
> I'm running a 32bit kernel, since some time ago I had problems with 64bit and
> cdrecord.

I just got a blkgetsize* testprogram...
(https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=62038)

---snip---
root@hp:~# ./blkgetsizetester /dev/sda2
Device size is 83968 blocks (42991616 bytes)
Device size per BLKGETSIZE64 is 12345 bytes
root@hp:~# ./blkgetsizetester /dev/sda5 
Device size is 1026016 blocks (525320192 bytes)
Device size per BLKGETSIZE64 is 12345 bytes
root@hp:~#
---snip---

I think thats the problem with xfs... well at least blkgetsize64 should report
an error, if its not working correctly.

bye

Stefan

-- 
        http://www.dreamind.de/
Oroborus and Debian GNU/Linux Developer.


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All good advice Grant "except" about buying a C2490A drive....DON'T.  I
replace them constantly.  Forgive my language....they are #@$%.  They
are unreliable at best and loud.  Heck I have (5) C2490A's sitting in
my garage in an old HP 6000 Fast/Wide enclosure.  I'll probably never
use them.  You could put 4 of them on the internal cable of your K580
and have the 5th as spare.  I'd let you have all of them for $40 plus
shipping.  Just keep good back-ups if you use them.....;)

derek


--- Grant Grundler <grundler@dsl2.external.hp.com> wrote:
> Steve.Grady@csiro.au wrote:
> > and HVD is not compatible with LVD except by a translator which
> costs
> > about $1.5K AUD which was more than I paid for the K580.
> 
> I didn't believe you until I found:
> http://members.ozemail.com.au/~jwk200/images/paralan -SRP pricelist
> 2002.pdf
> 
> You might try to order HDs here:
> 	http://www.weirdstuff.com/
> 
> They've got "Compaq" C2490A and "HP" C2490-60062 (both 2.1GB) for
> $40.
> You want "C2490WD" model - just like Seagate drives have "WD" for
> HVD.
> 
> Or the ST32550WD for $22 seems like a winner:
> http://liquidationetc.safeshopper.com/32/15179.htm?103
> 
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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> I just got a blkgetsize* testprogram...
> (https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=62038)

the test program has a nasty bug in it...
#define BLKGETSIZE64 _IOR(0x12,114,sizeof(unsigned long long)) /* return device

that's wrong.. it should be
#define BLKGETSIZE64 _IOR(0x12,114,unsigned long long) /* return device

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Derek Engelhaupt wrote:
> All good advice Grant "except" about buying a C2490A drive....DON'T.

no offense taken.  I've seen more than my fair share of ugly problems
with that drive as well.  The HP division that produced those was shut
down around the time those drives reached "end of product life".

I only suggested them because they were supported in the Kclass.

grant


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> I just tried to get XFS working on my C200 (I've got a new IBM SCSI disk.) and
> mkfs.xfs always got the size of the Device (/dev/sda5) wrong. (it complained
> about not getting with lseek64 to that position...)

64-bit kernel:
tausq@gsyprf11:~$ ls -l tst
-r-x--xr--    1 tausq    tausq    1099511627777 Sep  4 22:18 tst*
tausq@gsyprf11:~$ ./tt tst
lseek64(3,0,SEEK_END) = 1048576M


on my gecko (32-bit)
randolph@frodo:~$ sudo ./t /dev/sda3
lseek64(3,0,SEEK_END) = 1949M

seems to work ok?

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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The really only "good" thing about them is you can usually tell when
they are about to go bad by the strange sounds they make....;) 

derek 

--- Grant Grundler <grundler@dsl2.external.hp.com> wrote:
> Derek Engelhaupt wrote:
> > All good advice Grant "except" about buying a C2490A
> drive....DON'T.
> 
> no offense taken.  I've seen more than my fair share of ugly problems
> with that drive as well.  The HP division that produced those was
> shut
> down around the time those drives reached "end of product life".
> 
> I only suggested them because they were supported in the Kclass.
> 
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


__________________________________________________
Do You Yahoo!?
Yahoo! Finance - Get real-time stock quotes
http://finance.yahoo.com


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On Wed, 4 Sep 2002, Derek Engelhaupt wrote:

> The really only "good" thing about them is you can usually tell when
> they are about to go bad by the strange sounds they make....;) 

As I have been talking a customer (new CIO's first alligator 
wrestle) through 'revivng'a K-220 with a dead boot drive 
[error: WARN A008 == no more boot drive], and no 'ignite' 
tape, from 300 miles away, hearing it was not really possible 
<grin>

  -- Russ Herrold




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Subject: [parisc-linux] shoes, boots, footwear
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If you deal with work shoes and boots, please visit the website for cheaper and good quality:

www.wins-chinaboots.com

The site is a source for importers and distributors not for retail.

Sorry for disturbing you.


Regards


Wentao


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Hi Willy,

Do you remember this.

> On Wed, Aug 21, 2002 at 05:14:28PM +0200, jsoe0708@tiscali.be wrote:
> > After this upgarde, all evms tools failled and I got folowing kernel
message
> > at the console:
> > kernel BUG at blkpg.c:252!                                       
> > evms: ldev_mgr: error(-28): creating logical disk for device(8,0).  
   
> > 
> > at line 250 of /drivers/block/blkpg.c I read:
> > ...
> >    return put_user(uulval << 9, (u64 *)arg);
> > ...
>
> Aw, crap.  It now seems to be `legal' to put_user a 64-bit argument on
a
> 32-bit system.  Someone needs to fix this in include/asm-parisc/uaccess.h

May I suggest a trivial sol:
in put_user, case 8 uses something like as:
__put_user_asm("stw",(unsigned int)(x >> 32), (unsigned int) ptr);__put_user_asm("stw",(unsigned
int) x, (unsigned int) (ptr+1) );

or is it in the contrary order (I am not familiar with SE and BE conversion)

Thanks for attention,
    Joel



Big Brother Anders  - With Tiscali you will see it all !  Check it up on
 www.tiscali.be/bigbrother




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I have gotten my C200 back online and started some preliminary
work with the Voodoo2 PCI card. I currently have it plugged into
one of the 5V/32bit slots which may or may not be optimal.

Anyways,

1. Linux Kernel 2.4.19-pa2 sstfb Voodoo1/2 framebuffer

  Well, the kernel compiled with the sstfb without
  any errors. When I booted I got a black and white
  checkerboard pattern on the Voodoo2 monitor. I had
  disabled the stifb console, thinking that the kernel
  might pick the sstfb for a console, but it didn't.
  Just blankness for a while, then a checkerboard
  pattern.

  I think this is encouraging and I think it is working.
  I'm currently recompiling and will post some more news
  later as I experiment some more with it. Next I will
  try and put a console on the sstfb or even try running
  X on it.


2. glide3-alpha-0.cvs.20010711

  This is the Debian source for Glide3 on the Alpha arch,
  which is also big-endian. Initial compilation failed in
  multiple places about missing sys/io.h which I have
  located a file of that name in /usr/include/asm. I'll
  see if I can figure out how best to correct this and try
  again.


Cheers!
- Doug




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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: Re: [parisc-linux] C200 Voodoo2 Progress Report
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And I'm just happy that I got X/KDE to work on the built in graphics
card on my C180...finally.  Keep it up since I have a Voodoo2 available
to try on my C180 if you're successful.

derek

--- "B. Douglas Hilton" <bdhilton@charter.net> wrote:
> I have gotten my C200 back online and started some preliminary
> work with the Voodoo2 PCI card. I currently have it plugged into
> one of the 5V/32bit slots which may or may not be optimal.
> 
> Anyways,
> 
> 1. Linux Kernel 2.4.19-pa2 sstfb Voodoo1/2 framebuffer
> 
>   Well, the kernel compiled with the sstfb without
>   any errors. When I booted I got a black and white
>   checkerboard pattern on the Voodoo2 monitor. I had
>   disabled the stifb console, thinking that the kernel
>   might pick the sstfb for a console, but it didn't.
>   Just blankness for a while, then a checkerboard
>   pattern.
> 
>   I think this is encouraging and I think it is working.
>   I'm currently recompiling and will post some more news
>   later as I experiment some more with it. Next I will
>   try and put a console on the sstfb or even try running
>   X on it.
> 
> 
> 2. glide3-alpha-0.cvs.20010711
> 
>   This is the Debian source for Glide3 on the Alpha arch,
>   which is also big-endian. Initial compilation failed in
>   multiple places about missing sys/io.h which I have
>   located a file of that name in /usr/include/asm. I'll
>   see if I can figure out how best to correct this and try
>   again.
> 
> 
> Cheers!
> - Doug
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


__________________________________________________
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From: "Tobias Giesen" <tobias_subscriber@tgtools.com>
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Subject: RE: [parisc-linux] C200 Voodoo2 Progress Report
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Doug,

thanks very much for the report! Looking forward to trying this myself.

> Next I will try and put a console on 
> the sstfb or even try running X on it.

X via frame buffer would be great, I'll be happy
to work without glide.

Cheers,
Tobias



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Subject: [parisc-linux] Re: C200 Voodoo2 Progress Report
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On Thu, Sep 05, 2002 at 05:49:55PM -0400, B. Douglas Hilton wrote:
>   This is the Debian source for Glide3 on the Alpha arch,
>   which is also big-endian. Initial compilation failed in

nope.  alpha is little-endian.

LE: alpha, arm, cris, i386, ia64, superh
BE: m68k, mips, parisc, ppc, s390, sparc

(yes, i know many of these CPUs are bi-endian, but these are the default
configs)

-- 
Revolutions do not require corporate support.


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Current status of the parisc_linux24 port:

A couple of patches are sitting in RT waiting to be applied to fix up
the user space LWP build for this platform. Once those are applied,
almost all of the user space tools build cleanly. (I have not tested
them, but I'd expect the file/vol/pt servers to work.) The other user
space tools I have tested all work great.=20

The kernel module builds cleanly, however, there seems to be a problem
with linking the module on palinux.=20

For testing, I've ifdef'd out anything in osi_module.c and afs_osi.c
that actually does anything, so that afs_init at this point is limited
to simply calling osi_Init(), which in turn does nothing.=20

If I hand link a module containing only afs_osi.o and osi_module.o, I am
able to load/unload it without any trouble at all. However, as soon as I
link in all the other .o files (which should have no other effect beyond
increasing the size of the module and adding a pile of code that will
never be called), insmod segv's on module load somewhere in the
branch/call to osi_Init(). So obviously there is some problem with what
is generated by the linker that is causing it to flip out.

Only other possibility would be that there is a conflict with the name
of another routine in the .o's that is overlapping a critical
module-initialization function used by parisc_linux24, and not by other
linux platforms...=20

Any ideas?

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216


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Subject: [parisc-linux] Formatting Scsi disks
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I had an odd thing happen.....

i took a disk out of a 712 & had it in a mac for a while
when i put it back into the 712, & tried to put linux back on it, it got as
far as fdisk which then said that it couldnt write a partition table to it

the disk still works in the mac - am i missing something daft here ?

the search command from the boot console on the 712 sees the disk
the kernel sees & correctly identifies the disk

just wont partition it


any ideas?

James S





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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
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>I had an odd thing happen.....
>
>i took a disk out of a 712 & had it in a mac for a while
>when i put it back into the 712, & tried to put linux back on it, it got =
as
>far as fdisk which then said that it couldnt write a partition table to =
it
>
>the disk still works in the mac - am i missing something daft here ?
>
>the search command from the boot console on the 712 sees the disk
>the kernel sees & correctly identifies the disk
>
>just wont partition it
>
>
>any ideas?
>
try zeroing out the first few blocks:

dd if=3D/dev/zero of=3D/dev/offending_scsi_drive bs=3D512 count=3D4

(think if you need a backup before you do this!)

Good luck,
Jurriaan





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Hi all,


>in put_user, case 8 uses something like as:
>__put_user_asm("stw",(unsigned int)(x >> 32), (unsigned int) ptr);__put_user_asm("stw",(unsigned
>int) x, (unsigned int) (ptr+1) );
>

Well it is the contrary.

But I am a bit confuse of what do this __put_user_asm:
what does it return? (error code or ptr or something else?)

Thanks in advance for help;
    Joel


Big Brother Anders  - With Tiscali you will see it all !  Check it up on
 www.tiscali.be/bigbrother




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Hrrmm... things aren't quite so easy as I first thought.
For one, the Voodoo2 is a 5V PCI card so it will not fit
into the Cujo slots, only Dino.

Likewise, glide3-alpha wants to use <sys/io.h> which just
isn't there on hppa because that file is particular to
alpha and x86 archs as I understand it. I tried hacking
it to use <asm/io.h> instead which caused a cascade of
about a hundred errors when it got to that point. So
glide3-alpha needs some looking at.

On the kernel front, I can build the sstfb module allright,
which it must be made as a module or else an invisible
HPMC apparently occurs. I know this because after it switches
to fb console mode, nothing more is seen and hitting the
power button causes instant power-off rather than the normal
graceful shutdown.

When I "modprobe sstfb" it appears to load, except it is
reporting that my 12Mb card only has 2Mb. The fbset program
does not segfault, but complains about "Obsolete Major on
/dev/fb1". The con2fb util doesn't report any errors but
neither does it seem to do anything, and finally, a subsequent
"$export FRAMEBUFFER=/dev/fb1; startx -- :0 -bpp 16 vt06"
causes a lockup and suspected HPMC.

So, it seems like this stuff will require some working on.
If anybody else wants to help out too that would be great
because my time is limited and programming video cards is
a bit above my level, but I'll keep tinkering with it in
the meantime. I know some assembly and hardware basics but
am not very familiar with pa-risc yet.

- Doug



Matthew Wilcox wrote:
> On Thu, Sep 05, 2002 at 05:49:55PM -0400, B. Douglas Hilton wrote:
> 
>>  This is the Debian source for Glide3 on the Alpha arch,
>>  which is also big-endian. Initial compilation failed in
> 
> 
> nope.  alpha is little-endian.
> 
> LE: alpha, arm, cris, i386, ia64, superh
> BE: m68k, mips, parisc, ppc, s390, sparc
> 
> (yes, i know many of these CPUs are bi-endian, but these are the default
> configs)
> 





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> For one, the Voodoo2 is a 5V PCI card so it 
> will not fit into the Cujo slots, only Dino.

Which means some people can't use it? But you and I 
have 5V slots allright, don't we.

> programming video cards is a bit above my level

Mine too!! Things always seem to be more difficult than
you'd think at first. In any case I will now try to 
repeat your initial steps, and I'll be very happy if I get
to the checkerboard pattern.

Cheers,
Tobias




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Subject: [parisc-linux] Opinions on desktop environments
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Well, got KDE to work, but it just seems slow even with my 1.6MB of RAM
and 2GB of swap on my C180.  I guess my questions would be what would
be an alternative that might run faster and/or be better overall than
KDE?  Gnome?  I guess I'm looking for what you guys think is the best
desktop environment to run.  Thanks.

derek


__________________________________________________
Do You Yahoo!?
Yahoo! Finance - Get real-time stock quotes
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The C200 and probably C160, 180, 240, and 360
have two three different busses inside: the
Hewlett-Packard GSC bus, 5V/32bit PCI (dino),
and 3V/64bit PCI (cujo). Some PCI cards are
universal and have two punchouts. The 3V cards
have the punchout close to the outside edge of
the card, and 5V are the other way around.
You can use a 3V/32bit card in a 3V/64bit
slot with no problems. The Voodoo2 is 5V
only and will not fit into one of the Cujo slots.


Tobias Giesen wrote:
>>For one, the Voodoo2 is a 5V PCI card so it 
>>will not fit into the Cujo slots, only Dino.
> 
> 
> Which means some people can't use it? But you and I 
> have 5V slots allright, don't we.
> 

Right, C200 has both types. See above.

> 
>>programming video cards is a bit above my level
> 
> 
> Mine too!! Things always seem to be more difficult than
> you'd think at first. In any case I will now try to 
> repeat your initial steps, and I'll be very happy if I get
> to the checkerboard pattern.
> 

Yeah, not sure what did that. After rebuilding the sstfb
as a module and modprobe'ing it, I got a couple of colored
blocks, but not the checkerboard. I'm not sure of the exact
sequence as I haven't hooked up the spare monitor yet but
was switching the VGA cable back and forth. Further testing
seems warranted.

My C200 is back offline temporarily. I'm re-wiring my LAN
as it has gotten to be a horrendous mess of tangled wires
and cables after unplugging and replugging things for
several months. Need to straighten it out again :-)

I think I'll put the C200 onto my KVM switch with my X86 box
and reconsolidate it. I don't believe I'll be cracking the
case open anymore so it can be stowed away better than it is.
I put something like 370Mb RAM into it, a cdrom, an EEPro100,
and the Voodoo2. It is pretty well maxed out unless I run
low on HDD space which seems unlikely considering I just use
it as a hobby linux hacking box.

Thats it for now.

- Doug





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On Sat, 2002-09-07 at 01:58, Derek Engelhaupt wrote:
> Well, got KDE to work, but it just seems slow even with my 16MB of RAM
> and 2GB of swap on my C180.  I guess my questions would be what would
> be an alternative that might run faster and/or be better overall than
> KDE?  Gnome?  I guess I'm looking for what you guys think is the best
> desktop environment to run.  Thanks.

17Mb is pushing it. KDE/GNOME are about the same size. xfce/rox need a
lot less



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On Fri, Sep 06, 2002 at 09:06:32PM -0400, B. Douglas Hilton wrote:
> The C200 and probably C160, 180, 240, and 360
> have two three different busses inside: the
> Hewlett-Packard GSC bus, 5V/32bit PCI (dino),
> and 3V/64bit PCI (cujo).

... and some have an EISA slot provided by Wax.  I'm not sure exactly
which configurations exist, but the hwdb thinks that Cujo was only
used in the C200+, C240+, C360 and J2240.  The hwdb is slightly limited
in that there's only one profile per name, when it's possible to have
different configurations of the same box.  All B/C class boxes of that
era are guaranteed to have a Dino though, so there's no real problem
with requiring the use of a 5V slot.

-- 
Revolutions do not require corporate support.


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On 07 Sep 2002 02:43:28 +0100, you wrote:

>On Sat, 2002-09-07 at 01:58, Derek Engelhaupt wrote:
>> Well, got KDE to work, but it just seems slow even with my 16MB of RAM
>> and 2GB of swap on my C180.  I guess my questions would be what would
>> be an alternative that might run faster and/or be better overall than
>> KDE?  Gnome?  I guess I'm looking for what you guys think is the best
>> desktop environment to run.  Thanks.
>
>17Mb is pushing it. KDE/GNOME are about the same size. xfce/rox need a
>lot less
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

Nothing like applying a little hardware to cure speed demons.

I would suggest more memory, at least 32MB and even 64MB and or a
faster hard disk drive (: 10k rpm :) the latter has sped my 712/60 to
twice the normal performance when using a GUI.





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"James S" wrote:
> the search command from the boot console on the 712 sees the disk
> the kernel sees & correctly identifies the disk
> just wont partition it
> any ideas?

hmm...
dd if=/dev/zero of=/dev/sda bs=64k count=10
reboot and then try to partition it.

I'm guessing the partition tool does not know the current partition scheme
(or maybe just thinks it does).

grant


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Derek Engelhaupt wrote:
> Well, got KDE to work, but it just seems slow even with my 1.6MB of RAM
> and 2GB of swap on my C180.  I guess my questions would be what would
> be an alternative that might run faster and/or be better overall than
> KDE?  Gnome?  I guess I'm looking for what you guys think is the best
> desktop environment to run.  Thanks.
> 
> derek


Hehe... you should try running a 715 or 712! The C-Class machines positively
scream! I agree though, KDE is somewhat sluggish on my C200, but really not
too bad, its usable. I've heard rumors that someday the hppa c-library could
be optimized to run _much_ faster but its still a baby as far as linux is
concerned - I'm just tickled that it even works... I wanted another non-x86
machine (also have a Netwinder), but SGI's are pretty exotic (though tempting),
Alpha's seem super cool but are somewhat expensive and often in bad disrepair,
and Sun machines are either too expensive or too old. The hppa boxes provided
a nice economy and are very much contenders with any of the aforementioned
architectures. In its day a C200 running HP/UX was supposedly able to smoke
a 600MHz Alpha! Obviously there is a lot of optimization still to do...

I started off with a 715/80, got Woody running good on it, played with it for
almost a year, then sold it on Ebay for a small profit (Debian sells!) and
rolled my dough into the C200. I'm rather happy with its performance,
although it doesn't hold a candle to my super dual pentium-II 450 monster
box, still its a cool and useful machine, and very nice for making sure
that your app is portable, compiling your own hppa debs, etc. I don't run
mine 24/7 because it has pretty high power consumption, so the Netwinder
is my little server machine -> http://www.gyrodynamic.net

Well, I sent you a private email with my suggestions about E, but now that
I think about it, BlackBox isn't too bad with 8bpp color. Assuming that
somebody has fixed "update-menus" really any Debian window manager should
work with KDE, Gnome, and other X apps. The Debian menus should provide
access to all the installed packages which is all you really need.

BTW, regarding "update-menus" - the last time I tried it on hppa it worked
as root but segfaulted as a normal user.



- Doug



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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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whoops...meant to say 1.6GB.....;)

sorry...

--- "B. Douglas Hilton" <bdhilton@charter.net> wrote:
> Derek Engelhaupt wrote:
> > Well, got KDE to work, but it just seems slow even with my 1.6MB of
> RAM
> > and 2GB of swap on my C180.  I guess my questions would be what
> would
> > be an alternative that might run faster and/or be better overall
> than
> > KDE?  Gnome?  I guess I'm looking for what you guys think is the
> best
> > desktop environment to run.  Thanks.
> > 
> > derek
> 
> 
> Hehe... you should try running a 715 or 712! The C-Class machines
> positively
> scream! I agree though, KDE is somewhat sluggish on my C200, but
> really not
> too bad, its usable. I've heard rumors that someday the hppa
> c-library could
> be optimized to run _much_ faster but its still a baby as far as
> linux is
> concerned - I'm just tickled that it even works... I wanted another
> non-x86
> machine (also have a Netwinder), but SGI's are pretty exotic (though
> tempting),
> Alpha's seem super cool but are somewhat expensive and often in bad
> disrepair,
> and Sun machines are either too expensive or too old. The hppa boxes
> provided
> a nice economy and are very much contenders with any of the
> aforementioned
> architectures. In its day a C200 running HP/UX was supposedly able to
> smoke
> a 600MHz Alpha! Obviously there is a lot of optimization still to
> do...
> 
> I started off with a 715/80, got Woody running good on it, played
> with it for
> almost a year, then sold it on Ebay for a small profit (Debian
> sells!) and
> rolled my dough into the C200. I'm rather happy with its performance,
> although it doesn't hold a candle to my super dual pentium-II 450
> monster
> box, still its a cool and useful machine, and very nice for making
> sure
> that your app is portable, compiling your own hppa debs, etc. I don't
> run
> mine 24/7 because it has pretty high power consumption, so the
> Netwinder
> is my little server machine -> http://www.gyrodynamic.net
> 
> Well, I sent you a private email with my suggestions about E, but now
> that
> I think about it, BlackBox isn't too bad with 8bpp color. Assuming
> that
> somebody has fixed "update-menus" really any Debian window manager
> should
> work with KDE, Gnome, and other X apps. The Debian menus should
> provide
> access to all the installed packages which is all you really need.
> 
> BTW, regarding "update-menus" - the last time I tried it on hppa it
> worked
> as root but segfaulted as a normal user.
> 
> 
> 
> - Doug
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


__________________________________________________
Do You Yahoo!?
Yahoo! Finance - Get real-time stock quotes
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Okay, I've upgraded from the .iso image off of debian.org.
Now, I'm getting stranger errors with my tape drive. It looks
like the st is no longer a loadable kernel module? Anyways,
any help is appreciated.


(none):~# lsmod
Module                  Size  Used by    Not tainted
(none):~# insmod st
insmod: st: no module by that name found
(none):~# cat /proc/scsi/scsi
Attached devices: 
Host: scsi0 Channel: 00 Id: 05 Lun: 00
  Vendor: SEAGATE  Model: ST34371W         Rev: HP03
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 06 Lun: 00
  Vendor: SEAGATE  Model: ST32171W         Rev: HP03
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 01 Lun: 00
  Vendor: SONY     Model: SDT-7000         Rev: 0150
  Type:   Sequential-Access                ANSI SCSI revision: 02
(none):~# ls /dev/st*
/dev/st0   /dev/st0l  /dev/st1	 /dev/st1l  /dev/stderr  /dev/stdout
/dev/st0a  /dev/st0m  /dev/st1a  /dev/st1m  /dev/stdin
(none):~# ls nst*
/dev/nst0   /dev/nst0l	/dev/nst1   /dev/nst1l
/dev/nst0a  /dev/nst0m	/dev/nst1a  /dev/nst1m
(none):~# tar -cvpf /dev/st0 /home
st0: Block limits 1 - 16777215 bytes.
tar: Removing leading `/' from member names
home/
home/lost+found/
home/marc/
home/marc/.bashrc
home/marc/.bash_profile
st0: Error on write filemark.
st0: Error with sense data: Current st09:00: sns = 70  4
ASC=44 ASCQ= 0
Raw sense data:0x70 0x00 0x04 0x00 0x00 0x00 0x00 0x12 0x00 0x00 0x00 0x00 0x44 
0x00 0x00 0x00 0xa3 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
tar: /dev/st0: Warning: Cannot close: Input/output error
(none):/home/marc# tar -xvpf /dev/st0
tar: /dev/st0: Cannot read: Input/output error
tar: At beginning of tape, quitting now
tar: Error is not recoverable: exiting now



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When Linux starts up I see a message saying:

ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx

I have a C180 and the bus speed at startup says:

Central Bus Speed (in MHz) :        120

so I'm assuming I should add the boot parameter as mentioned above.
Will I see any performance gain?

Thanks,
-Marc


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Finally, I have a message at startup that says:

Running 0dns-down to make sure resolv.conf is ok...chmod: getting attributes of 
`/etc/resolv.conf': No such file or directory
done.

do I need to create a resolv.conf file? Sounds easy enough.

-Marc


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Xref: news.gmane.org gmane.linux.ports.parisc:16057

Oh one last question, how can I change the default boot
from P0 to P1? Everything works fine if I do a SEA then BO P1
at startup, and I want to make this the default.

Thanks for everything,
-Marc


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 systems.
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Hallo Ryan,

after that long time, I did the first experiment with
your new MUX driver ...

... and it fails on my E55.

But NO WONDER ! I already have the problem finding any
devices on the I/O interface card, and I had no time
since weeks now, to do further steps.

In general I have the problem in basic stuff and in
docu, special for the I/O scanning via PDC in more
details. In the normal PDC/IO there is not enough docu
for that. I was informed, that there is one more docu
handling this, bt I forgot the name, something like
"AIO" or so.

How we can go one step forward, as I also want to 
start (in slowly steps) the SCSI driver ... ?

Bye,
Christoph



Ryan Bradetich wrote:
> 
> Hello all,
> 
> I just committed support for the Serial MUX driver as linux-2.4.19-pa5.
> 
> This patch has been tested on my K460 and has been working well.  The
> driver uses the same /dev/ttyB0 device the PDC Software console that
> Christoph Plattner wrote and is available under the Non-standard serial
> ports section.
> 
> Currently the driver only supports the Eole CAP/MUX (A Direct) device
> since that is all I have to test with.  Additional devices can be added
> under this driver as people with systems have a chance to test.
> 
> I tried to document the driver with kerneldoc, but it would be nice if
> someone would check over my comment as I had to google/guess what most
> of the ioctls and tty flags were.
> 
> The committed patch can be found at:
>         ftp://ftp.parisc-linux.org/patches/serial_mux_v0.1.diff
> 
> Feedback greatly appreciated!
> 
> Thanks,
> 
> - Ryan
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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On Sat, 2002-09-07 at 21:49, marc wrote:
> When Linux starts up I see a message saying:
> 
> ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
> 
> I have a C180 and the bus speed at startup says:
> 
> Central Bus Speed (in MHz) :        120
> 
> so I'm assuming I should add the boot parameter as mentioned above.
> Will I see any performance gain?

I doubt the 120Mhz clock is run to non PCI IDE devices. The PARISC port
should be setting the IDE base clocking itself.



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"marc " wrote:
> ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
> I have a C180 and the bus speed at startup says:
> Central Bus Speed (in MHz) :        120

There is no IDE on C180 unless you've added a PCI card that has it.
Only systems with SuckyIO have built-in IDE where HPUX officially
only supports CD-ROM. Of course, under linux we can do what we want.

"Central Bus" in this case is the "Runway" bus.
Only CPU, Memory Controller and IO Controller (U2) are on Runway bus. 

grant


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"marc " wrote:
> do I need to create a resolv.conf file? Sounds easy enough.

DHCP will normally do that for you.
If you are manually configuring NICs, then yes.
DHCP sets up my home system like this:

grundler@c3k:~$ cat /etc/resolv.conf
search attbi.com
nameserver 216.148.227.68
nameserver 204.127.202.4


grant


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"marc " wrote:
> Oh one last question, how can I change the default boot
> from P0 to P1? Everything works fine if I do a SEA then BO P1
> at startup, and I want to make this the default.

pa pri fwscsi.X.0 (or something like that).

Type "help" or "he path" from the config menu.
It will explain how to set "Primary Boot path".

grant


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Subject: Re: [parisc-linux] [PATCH] Serial MUX support for Nova and K-Class 
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Hi Christoph,

I'm working on solving the problem why we do not find
the MUX device.  The ESIEE team has generously given
me access to an E35 so I could poke around the HP-UX
iotree and see what I could find.

This is the summary of what I have found:

name_buffer instance hw_addr   parent  sibling    child
"bc"               1      56 0x43b3a0 0xc15240 0xc15040
  "scsi1"          0      52 0xc15000 0xe74140 0xc15080
  ""              -1      53 0xc15000 0xc15200        0
  "mux2"           0      56 0xc15000        0        0
"bus_adapter"      0      60 0x43b3a0 0xe74240 0xc15280
  "lan2"           0       6 0xc15240        0        0
"processor"        0      62 0x43b3a0 0xe74280        0
"memory"           0      63 0x43b3a0        0        0

The MUX sits at: 56/56 with HPA: 0xfffb8000


>From your boot logs posted to the mailing list:

---- walk_native_bus:    testing hpa=0xfffb8000, i=56
---- walk_native_bus:    -- device not processed, mod = i !
------ alloc_pa_dev: entry
-------------------------- find_parisc_device: entry, mod=56
-------------------------- find_parisc_device:   bc[0]=-1
-------------------------- find_parisc_device:   bc[1]=-1
-------------------------- find_parisc_device:   bc[2]=-1
-------------------------- find_parisc_device:   bc[3]=-1
-------------------------- find_parisc_device:   bc[4]=-1
-------------------------- find_parisc_device:   bc[5]=-1
-- walk_lower_bus: entry
-- walk_lower_bus: dev: hpa=0xfffb8000, io_io_low=0xfff00000,
io_io_high=0xfff80000


You also found a device at 0xfffb8000 which I am assuming is the MUX.  
(I need to get back on the E35 at the ESIEE to verify my thoughts.)

The problem we are running into here is that 0xfffb8000 is on the
Central BUS, not under the 56/ bus as the console wants to be in
the HP-UX iotree.  It appears to me that the bc and the MUX exist
at the same HPA and that is what is causing the confusion in the
parisc-linux I/O tree.

The other thing that is curious to me is the "" devices under the
bc between the scsi1 and the mux2 device.

I think I can get this problem solved once I get access to the
ESIEE E35 and am able to boot some test kernels on the system to
play with.

As for the scsi driver.  I have the bare-bones (ie. does not work)
of both the skunk (8-bit) and the wizard (16-bit) drivers started from a
while back.  I think you found a reference to the SPIFI chip that we
could use in the driver to further progress the drivers and hopefully
get them talking.

The document is the IOACD document I believe.  What are you looking for?
Parts of the document are on the parisc-linux website, but if that is
not enough info, I'll try to find it for you in the IOACD.

Thanks!

- Ryan



On Sat, 2002-09-07 at 15:36, Christoph Plattner wrote:
> Hallo Ryan,
> 
> after that long time, I did the first experiment with
> your new MUX driver ...
> 
> ... and it fails on my E55.
> 
> But NO WONDER ! I already have the problem finding any
> devices on the I/O interface card, and I had no time
> since weeks now, to do further steps.
> 
> In general I have the problem in basic stuff and in
> docu, special for the I/O scanning via PDC in more
> details. In the normal PDC/IO there is not enough docu
> for that. I was informed, that there is one more docu
> handling this, bt I forgot the name, something like
> "AIO" or so.
> 
> How we can go one step forward, as I also want to 
> start (in slowly steps) the SCSI driver ... ?
> 
> Bye,
> Christoph
> 
> 
> 
> Ryan Bradetich wrote:
> > 
> > Hello all,
> > 
> > I just committed support for the Serial MUX driver as linux-2.4.19-pa5.
> > 
> > This patch has been tested on my K460 and has been working well.  The
> > driver uses the same /dev/ttyB0 device the PDC Software console that
> > Christoph Plattner wrote and is available under the Non-standard serial
> > ports section.
> > 
> > Currently the driver only supports the Eole CAP/MUX (A Direct) device
> > since that is all I have to test with.  Additional devices can be added
> > under this driver as people with systems have a chance to test.
> > 
> > I tried to document the driver with kerneldoc, but it would be nice if
> > someone would check over my comment as I had to google/guess what most
> > of the ioctls and tty flags were.
> > 
> > The committed patch can be found at:
> >         ftp://ftp.parisc-linux.org/patches/serial_mux_v0.1.diff
> > 
> > Feedback greatly appreciated!
> > 
> > Thanks,
> > 
> > - Ryan
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> -- 
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at
> 




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"marc " wrote:
> It looks like the st is no longer a loadable kernel module?

Right. It's not:
CONFIG_CHR_DEV_ST=y

See arch/parisc/debian-configs/* for default configs.

> st0: Error on write filemark.
> st0: Error with sense data: Current st09:00: sns = 70  4
> ASC=44 ASCQ= 0
> Raw sense data:0x70 0x00 0x04 0x00 0x00 0x00 0x00 0x12 0x00 0x00 0x00 0x00 0x
>   44 
> 0x00 0x00 0x00 0xa3 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
> tar: /dev/st0: Warning: Cannot close: Input/output error

Seagate (and other vendors) publishes the subset of SCSI spec they implement.
It includes Sense Key/ASC/ASCQ encodings.
Look for "scsi2_seagate.pdf" on www.seagate.com web site.

Sense Key  = 0x04 == "Hardware Error"
ASC/ASCQ = 0x44/0 == "Internal Target Failure"

You need to find the programming manual for your tape device
and hopefully it explains exactly what this means.

grant


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And if you want it to start automatically from that path you have to
set autoboot to on.  Autoboot and the path commands are in the
Configuration menu (co from the ma prompt).

derek 

--- Grant Grundler <grundler@dsl2.external.hp.com> wrote:
> "marc " wrote:
> > Oh one last question, how can I change the default boot
> > from P0 to P1? Everything works fine if I do a SEA then BO P1
> > at startup, and I want to make this the default.
> 
> pa pri fwscsi.X.0 (or something like that).
> 
> Type "help" or "he path" from the config menu.
> It will explain how to set "Primary Boot path".
> 
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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--61jdw2sOBCFtR2d/
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parisc,

After some banter on IRC about how one should set the stride
for a cache flush using the 'fic' instruction, I noted the 
following possible problems our trap handler:

a. Non-access instruction TLB miss fault (16)
	- No implemented case statement in traps.c
	- No problem, falls through to do_page_fault.
	- Suggest forcing a sigsegv on the process.

b. Non-access data TLB miss fault (17)
	- Calls parisc_terminate and gutters the cpu.
	- This should not happen.
	- Suggest forcing a sigsegv on the process.

c. Conditional Trap (13)
	- No implemented case statment in traps.c
	- Suggest forcing SIGFPE and setting si_code to zero,
	  and allowing the userspace app the decode the 
	  situation from the signal andler (HPUX seems to 
	  this?) via si_addr.

c. All paths must either return or set the fault_address
   and fault_space values? One place does not, I put a 
   FIXME there. Needs review. Those two values are needed
   by the check after the switch statement in handle_interruption.
   Is setting them to zero, as is done now, good enough?

Patch attached :)

c.


--61jdw2sOBCFtR2d/
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="traps.c.diff"

--- traps.c.orig	2002-09-07 21:30:15.000000000 -0400
+++ traps.c.new	2002-09-07 21:30:05.000000000 -0400
@@ -425,11 +425,11 @@
 
 
 /*
- * This routine handles page faults.  It determines the address,
+ * This routine handles various exception codes.  It determines the address,
  * and the problem, and then passes it off to one of the appropriate
  * routines.
  */
-void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long offset)
+void parisc_handle_code(char *msg, struct pt_regs *regs, int code, unsigned long offset)
 {
 	static spinlock_t terminate_lock = SPIN_LOCK_UNLOCKED;
 
@@ -444,8 +444,17 @@
 	if (!console_drivers)
 		pdc_console_restart();
 
-	if (code == 1)
-	    transfer_pim_to_trap_frame(regs);
+
+	/* Not all switch paths will gutter the processor... */
+	switch(code){
+
+	case 1:
+		transfer_pim_to_trap_frame(regs);
+		break;
+	    
+	default:
+		/* Fall through */
+	}
 
 	show_stack(regs);
 
@@ -461,6 +470,7 @@
 	 * system will shut down immediately right here. */
 	pdc_soft_power_button(0);
 	
+	/* Gutter the processor... */
 	for(;;)
 	    ;
 }
@@ -487,7 +497,7 @@
 
 	case  1:
 		/* High-priority machine check (HPMC) */
-		parisc_terminate("High Priority Machine Check (HPMC)",
+		parisc_handle_code("High Priority Machine Check (HPMC)",
 				regs, code, 0);
 		/* NOT REACHED */
 		
@@ -554,6 +564,7 @@
 
 		die_if_kernel("Privileged register usage", regs, code);
 		si.si_code = ILL_PRVREG;
+		/* Fall thru */
 	give_sigill:
 		si.si_signo = SIGILL;
 		si.si_errno = 0;
@@ -568,6 +579,20 @@
 		si.si_addr = (void *) regs->iaoq[0];
 		force_sig_info(SIGFPE, &si, current);
 		return;
+	
+	case 13:
+		/* Conditional Trap */
+		/* The condition succees in an instruction which traps
+		 * on condition
+		 */
+		si.si_signo = SIGFPE;
+		/* Set to zero, and let the userspace app figure it out from
+		 * the insn pointed to by si_addr 
+		 */
+		si.si_code = 0;
+		si.si_addr = (void *) regs->iaoq[0];
+		force_sig_info(SIGFPE, &si, current);
+		return;
 
 	case 14:
 		/* Assist Exception Trap, i.e. floating point exception. */
@@ -575,11 +600,24 @@
 		handle_fpe(regs);
 		return;
 
+	case 15: 
+		/* Data TLB miss fault/Data page fault */	
+		/* Fall thru */
+	case 16:
+		/* Non-access instruction TLB miss fault */
+		/* The instruction TLB entry needed for the target address of the FIC
+		 * is absent, and hardware can't find it, so we get to cleanup
+		 */
+		/* Fall thru */
 	case 17:
 		/* Non-access data TLB miss fault/Non-access data page fault */
 		/* TODO: Still need to add slow path emulation code here */
+		/* TODO: Understand what is meant by the TODO listed 
+		 * above this one. (Carlos - Sep 7, 2002) */
+		
 		fault_address = regs->ior;
-		parisc_terminate("Non access data tlb fault!",regs,code,fault_address);
+		fault_space = regs->isr;
+		break;
 
 	case 18:
 		/* PCXS only -- later cpu's split this into types 26,27 & 28 */
@@ -589,9 +627,8 @@
 			return;
 		}
 		/* Fall Through */
-
-	case 15: /* Data TLB miss fault/Data page fault */
-	case 26: /* PCXL: Data memory access rights trap */
+	case 26: 
+		/* PCXL: Data memory access rights trap */
 		fault_address = regs->ior;
 		fault_space   = regs->isr;
 		break;
@@ -621,6 +658,11 @@
 		pt_regs_to_ssp(regs, &ssp);
 		kgdb_trap(I_TAKEN_BR, &ssp, 1);
 		ssp_to_pt_regs(&ssp, regs);
+
+		/* FIXME: Should this break without setting fault_address
+		 * and fault_space? They are required for the dump later on.
+		 * (Carlos - Sep 7, 2002) */
+		
 		break;
 #endif /* CONFIG_KWDB */
 
@@ -656,7 +698,6 @@
 			up_read(&current->mm->mmap_sem);
 		}
 		/* Fall Through */

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Subject: Re: [parisc-linux] RFC - Changes to traps.c (Handlers for 13, changes to 16/17)
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pa,

If you have a burning desire to build with this change
then you'll need this bit too.

I'm possibly tempted to stay with the 'parisc_terminate' name
and just change the comments for the function. 

c.


--- linux/arch/parisc/mm/fault.c	2001-12-04 18:19:47.000000000 -0500
+++ linux/arch/parisc/mm/fault.c.new	2002-09-07 22:12:29.000000000 -0400
@@ -256,7 +256,8 @@
 		}
 	}
 
-	parisc_terminate("Bad Address (null pointer deref?)", regs, code, address);
+	parisc_handle_code("Bad Address (null pointer deref?)", regs, code, address);
+	/* NOT REACHED */
 
   out_of_memory:
 	up_read(&mm->mmap_sem);



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] [PATCH] Serial MUX support for Nova and K-Class 
 systems.
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To: Ryan Bradetich <rbradetich@uswest.net>
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Hello Ryan,

what I am looking for is the field definitions of the 
structures of the bus queries. I also have forgotten
the names here (I must go back to my "debug code"
and reread it !!!).
Oh, I have found it: 
	struct io_moudule
and
	struct bc_module
(especially for the second one, I have no idea, where
it comes from). All these structure (there are more)
are defined in `include/asm/hardware.h'.

I have to get back to my hacks, to know more details 
again.

Christoph


Ryan Bradetich wrote:
> 
> Hi Christoph,
> 
> I'm working on solving the problem why we do not find
> the MUX device.  The ESIEE team has generously given
> me access to an E35 so I could poke around the HP-UX
> iotree and see what I could find.
> 
> This is the summary of what I have found:
> 
> name_buffer instance hw_addr   parent  sibling    child
> "bc"               1      56 0x43b3a0 0xc15240 0xc15040
>   "scsi1"          0      52 0xc15000 0xe74140 0xc15080
>   ""              -1      53 0xc15000 0xc15200        0
>   "mux2"           0      56 0xc15000        0        0
> "bus_adapter"      0      60 0x43b3a0 0xe74240 0xc15280
>   "lan2"           0       6 0xc15240        0        0
> "processor"        0      62 0x43b3a0 0xe74280        0
> "memory"           0      63 0x43b3a0        0        0
> 
> The MUX sits at: 56/56 with HPA: 0xfffb8000
> 
> >From your boot logs posted to the mailing list:
> 
> ---- walk_native_bus:    testing hpa=0xfffb8000, i=56
> ---- walk_native_bus:    -- device not processed, mod = i !
> ------ alloc_pa_dev: entry
> -------------------------- find_parisc_device: entry, mod=56
> -------------------------- find_parisc_device:   bc[0]=-1
> -------------------------- find_parisc_device:   bc[1]=-1
> -------------------------- find_parisc_device:   bc[2]=-1
> -------------------------- find_parisc_device:   bc[3]=-1
> -------------------------- find_parisc_device:   bc[4]=-1
> -------------------------- find_parisc_device:   bc[5]=-1
> -- walk_lower_bus: entry
> -- walk_lower_bus: dev: hpa=0xfffb8000, io_io_low=0xfff00000,
> io_io_high=0xfff80000
> 
> You also found a device at 0xfffb8000 which I am assuming is the MUX.
> (I need to get back on the E35 at the ESIEE to verify my thoughts.)
> 
> The problem we are running into here is that 0xfffb8000 is on the
> Central BUS, not under the 56/ bus as the console wants to be in
> the HP-UX iotree.  It appears to me that the bc and the MUX exist
> at the same HPA and that is what is causing the confusion in the
> parisc-linux I/O tree.
> 
> The other thing that is curious to me is the "" devices under the
> bc between the scsi1 and the mux2 device.
> 
> I think I can get this problem solved once I get access to the
> ESIEE E35 and am able to boot some test kernels on the system to
> play with.
> 
> As for the scsi driver.  I have the bare-bones (ie. does not work)
> of both the skunk (8-bit) and the wizard (16-bit) drivers started from a
> while back.  I think you found a reference to the SPIFI chip that we
> could use in the driver to further progress the drivers and hopefully
> get them talking.
> 
> The document is the IOACD document I believe.  What are you looking for?
> Parts of the document are on the parisc-linux website, but if that is
> not enough info, I'll try to find it for you in the IOACD.
> 
> Thanks!
> 
> - Ryan
> 
> On Sat, 2002-09-07 at 15:36, Christoph Plattner wrote:
> > Hallo Ryan,
> >
> > after that long time, I did the first experiment with
> > your new MUX driver ...
> >
> > ... and it fails on my E55.
> >
> > But NO WONDER ! I already have the problem finding any
> > devices on the I/O interface card, and I had no time
> > since weeks now, to do further steps.
> >
> > In general I have the problem in basic stuff and in
> > docu, special for the I/O scanning via PDC in more
> > details. In the normal PDC/IO there is not enough docu
> > for that. I was informed, that there is one more docu
> > handling this, bt I forgot the name, something like
> > "AIO" or so.
> >
> > How we can go one step forward, as I also want to
> > start (in slowly steps) the SCSI driver ... ?
> >
> > Bye,
> > Christoph
> >
> >
> >
> > Ryan Bradetich wrote:
> > >
> > > Hello all,
> > >
> > > I just committed support for the Serial MUX driver as linux-2.4.19-pa5.
> > >
> > > This patch has been tested on my K460 and has been working well.  The
> > > driver uses the same /dev/ttyB0 device the PDC Software console that
> > > Christoph Plattner wrote and is available under the Non-standard serial
> > > ports section.
> > >
> > > Currently the driver only supports the Eole CAP/MUX (A Direct) device
> > > since that is all I have to test with.  Additional devices can be added
> > > under this driver as people with systems have a chance to test.
> > >
> > > I tried to document the driver with kerneldoc, but it would be nice if
> > > someone would check over my comment as I had to google/guess what most
> > > of the ioctls and tty flags were.
> > >
> > > The committed patch can be found at:
> > >         ftp://ftp.parisc-linux.org/patches/serial_mux_v0.1.diff
> > >
> > > Feedback greatly appreciated!
> > >
> > > Thanks,
> > >
> > > - Ryan
> > >
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
> > --
> > -------------------------------------------------------
> > private:      christoph.plattner@gmx.at
> > company:      christoph.plattner@alcatel.at
> >

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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Subject: [parisc-linux] [OT] cheap pa-risc hardware
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Xref: news.gmane.org gmane.linux.ports.parisc:16069

I was recently asked to help sell a pallet full of 712/60s, 712/80s,
735/125s, and 715/100s (plus a few J- and K-class servers and other
random hardware).  Before I start hitting eBay, I was hoping that
someone on the list might have a good use for them.  While they
wouldn't be free, I think they would be cheap.  I've already warned
the guy in question that the older workstations aren't worth much,
especially since they don't seem to have any interesting hardware
(small disks, not much memory, no add-on cards).

If I had any spare money right now, I'd probably just buy the things
and donate them to a few Debian developers...

Please email me off-list if you have a use for them.  I'll have exact
numbers early this week.

The systems are in St. Louis, if it matters.

Steve
-- 
steve@silug.org           | Southern Illinois Linux Users Group
(618)398-7360             | See web site for meeting details.
Steven Pritchard          | http://www.silug.org/


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The status has not changed the last month. My E55 works
without MUX (except console via my PDC driver), SCSI
and parallel port.

At the momemt, I will start again play around accessing
the devices (I alreasy started a month ago, but other
work delayed this ...).

Christoph


Jussi Mki wrote:
> 
> Hi, we discussed about using linux on E45 couple of months ago..
> 
> How well does parisc-linux work on E-series machine these days?

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Alan Cox wrote:
> The setup I use so I get a 'real desktop' not just old style X window
> mangler is xfce for the desktop with the rox filer on top for the file
> mangler, icon dock etc.

rox filer isn't available pre-built for hppa.
"dpkg-buildpackage -rfakeroot -uc -us" died with:
...
checking that libgtk2.0-dev (version >= 2.0.1) is installed... no
configure: error: Package is not installed

while on my system "dpkg -l libgtk\*" says:
...
ii  libgtk2.0-0    2.0.2-5woody1  The GTK+ graphical user interface library
ii  libgtk2.0-comm 2.0.2-5woody1  Common files for the GTK+ graphical user int
ii  libgtk2.0-dbg  2.0.2-5woody1  The GTK+ libraries and debugging symbols
ii  libgtk2.0-dev  2.0.2-5woody1  Development files for the GTK+ library.

Latest source depot's are below in case someone wants to beat rox config
tools into submission:
deb http://www.janw.easynet.be/rox/ developer/
deb-src http://www.janw.easynet.be/rox/ developer/

(one might try "stable/" instead of "developer/")


> I'd guess it would be very nice on an ancient parisc box too because
> they pa boxes probably have better I/O

I was thinking xfce is a window manager but it's not:
    xfce is an easy-to-use and easy-to-configure toolbar for X11.  Features
    pulldown menus with color icons, 3D widgets,  etc.   It's  designed  to
    work with XFwm, (window manager shipped with xfce)

It works on fine on my B180...but I didn't try it with XFwm as reccomended.
fvwm was still running...I'll try it again with XFwm.

thanks,
grant


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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: [parisc-linux] Re: ide controller
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moritz@sinnhq.de wrote:
> hi,

Hi,
This is a kernel question. I'm replying to a different list.

> i'd like to connect some big ide disks to my hp c240, which is running
> with debian gnu/linux.i tried an ultra ata ide controller from digitus.
> but when i load the module, the system crashes after detecting the
> controller.

Can you post details of the crash?
Console output?
kernel version?
maybe collect "ser pim" output from "boot_admin>" as well.

> i think that
> this is because of the lower voltage in the hp machines compared with an
> pc. but an standard pci network card works without problems.
> so does someone now an ide controller which works?

This has nothing to do with the voltage.
If the card fits, the voltage is OK.

grant


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Subject: [parisc-linux] Inline Assembly Help request
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Hi all,

Continuing to figure out how to translate this C in assembly:
static inline int __put_user_u64(unsigned long long val, unsigned long long
*  ptr)
{
    int  err;
    err = (int) put_user((unsigned int)(val>>32) ,(unsigned int *)ptr);
    err |= (int) put_user((unsigned int)val,(unsigned int *)ptr+1);
    return err;
}

(needed for > evms-1.1.0)

With many luck, I found interresting references about online assembly in
gcc.

But I do not yet find explanation about details of the following asm code:
#define __put_user_asm(stx,x,ptr)                           \
        __asm__ __volatile__ (                              \
                "\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
                "2:\n"                                      \
                "\t.section __ex_table,\"a\"\n"             \
                 "\t.word\t1b\n"                            \
                 "\t.word\t(2b-1b)+1\n"                     \
                 "\t.previous"                              \
                : "=r"(__pu_err)                            \
                : "r"(ptr), "r"(x), "0"(__pu_err))

which is more clear with gcc -S:

1:      stw     %r21,0(%sr3,%r19)
2:
        .section __ex_table,"a"
        .word   1b
        .word   (2b-1b)+1
        .previous

My questions are:
what are the actual means "1:", "2:" (seems like label?)

and what means the rest
".section __ex_table,...
 ...
 .previous"

I do not yet found reference on this part (even in Assembly-HOWTO).
Where could I found doc on this details?

Thanks in advance for attention,
    Joel
                          


Big Brother Anders  - With Tiscali you will see it all !  Check it up on
 www.tiscali.be/bigbrother




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> But I do not yet find explanation about details of the following asm code:
> #define __put_user_asm(stx,x,ptr)                           \
>         __asm__ __volatile__ (                              \
>                 "\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
>                 "2:\n"                                      \
>                 "\t.section __ex_table,\"a\"\n"             \
>                  "\t.word\t1b\n"                            \
>                  "\t.word\t(2b-1b)+1\n"                     \
>                  "\t.previous"                              \
>                 : "=r"(__pu_err)                            \
>                 : "r"(ptr), "r"(x), "0"(__pu_err))
> 
> which is more clear with gcc -S:
> 
> 1:      stw     %r21,0(%sr3,%r19)
> 2:
>         .section __ex_table,"a"
>         .word   1b
>         .word   (2b-1b)+1
>         .previous
> 
> My questions are:
> what are the actual means "1:", "2:" (seems like label?)

They are local labels that can be referenced in the asm.  "b" and "f"
mean backwards and forward relative to the current location.  This more
or less doubles the number of labels available.

> and what means the rest
> ".section __ex_table,...
>  ...
>  .previous"
> 
> I do not yet found reference on this part (even in Assembly-HOWTO).
> Where could I found doc on this details?

The GCC manual (extend.texi) has documentation on writing asms.  You
will need to look at the pa-risc architecture manuals for documentation
on PA assembler instructions.

The code is trying to setup a table using local labels generated
in the asm.  The way to do this is highly port dependent.
In particular, indirect function calls are done using plabels on
the PA.  There are also restrictions on the types of relocations
that can be used for constructing tables of this kind.

This is highly complex stuff and isn't very well documented.  You
can read the HP runtime architecture document, the documentation on
ELF relocations and look at the code in the GNU assembler and linker.
The dwarf2 exception tables that you can generate with gcc 3.3
may also give some clue.  Look at the entry for the personality
function and how the labels for C++ catches are encoded in the table.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: "Jon Sharp" <jonsharp@fastmail.ca>
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Subject: [parisc-linux] Modem communication, HP 730
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Dear All,

I hope that I am sending this to an appropriate list.  To be honest I 
am running out of ideas.

I recently received a HP 730 which I am attempting to restore.  I am 
trying to install an external modem (V90 Velo Net ME220).  However, 
it is acting strangley.  It works fine (using minicom) at connection 
speeds of up to 19200, after that the modem fails to respond to AT 
commands altogether.

I have read through both the serial and modem how-tos in detail and 
tried what I could think of.  Including using a large range of 
different settings for setserial and stty.  Does anyone have any idea 
what I might be doing wrong?  One interesting point to note, I have 
no monitor or HIL keyboard and have been using the first serial port 
(A) for a console.

Any advice would be greatly received,

Jon Sharp

__ 
'The art of good lecturing is to transfer the information from my 
notes to your notes without it passing through eithers brain.'
Cambridge University Lecturer
_________________________________________________________________
    http://fastmail.ca/ - Fast Secure Web Email for Canadians
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From: Jochen Friedrich <jochen@scram.de>
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Subject: [parisc-linux] definition of EWOULDBLOCK in /usr/include/asm/errno.h
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Hi,

because of the unusual definition of EWOULDBLOCK, zebra currently doesn't
work (zebra checks for EWOULDBLOCK in zebra/rt_netlink.c and will loop if
it gets EAGAIN instead and both are not the same).

I'm not sure what's the correct fix for this, change errno.h to match the
definition of the other archs or change zebra to check for EAGAIN as
well...

Cheers,
--jochen



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Hi,

the same applies to 4.0.14, as well.

Cheers,
--jochen
---------- Forwarded message ----------
Date: Fri, 16 Aug 2002 07:54:04 +0200 (CEST)
From: Jochen Friedrich <jochen@scram.de>
To: Matthew Wilcox <willy@debian.org>
Cc: HP900 PARISC mailing list <parisc-linux@lists.parisc-linux.org>
Subject: [parisc-linux] db3 patch for Linux/HPPA

Hi Matthew,

this fixes a problem with db3 mutexes. Problem is in
__db_tas_mutex_init(). If MUTEX_INIT returns non-zero value, mutexp->spins
doesn't get initialized and later __db_tas_mutex_lock loops without ever
trying to aquire the lock (as spins is zero).

diff -urN db-3.2.9/include/mutex.h db-3.2.9.new/include/mutex.h
--- db-3.2.9/include/mutex.h    Sun Jun 23 16:34:28 2002
+++ db-3.2.9.new/include/mutex.h        Sun Jun 23 16:33:38 2002
@@ -413,7 +413,7 @@
        __r & 1;                                                        \
 })

-#define        MUTEX_UNSET(tsl)        (*(tsl) = -1)
+#define        MUTEX_UNSET(tsl)        (!(*(tsl) = -1))
 #define        MUTEX_INIT(tsl)         MUTEX_UNSET(tsl)
 #endif
 #endif

Cheers,
--jochen

_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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> because of the unusual definition of EWOULDBLOCK, zebra currently doesn't
> work (zebra checks for EWOULDBLOCK in zebra/rt_netlink.c and will loop if
> it gets EAGAIN instead and both are not the same).
> 
> I'm not sure what's the correct fix for this, change errno.h to match the
> definition of the other archs or change zebra to check for EAGAIN as
> well...

I assume you are refering to this bit of code:

      status = recvmsg (nl->sock, &msg, 0);

      if (status < 0)
        {
          if (errno == EINTR)
            continue;
          if (errno == EWOULDBLOCK)
            break;
          zlog (NULL, LOG_ERR, "%s recvmsg overrun", nl->name);
          continue;
        }

On some SysV systems EAGAIN != EWOULDBLOCK. I think we inherited the
errno definitions from HPUX...

glibc's documentation says:

Portability Note: In many older Unix systems, this condition was indicated by EWOULDBLOCK, which was a distinct error code different from EAGAIN. To make your program portable, you should check for both codes and treat them the same. 

sounds like good advice to me.. :-)

it does say, however, that for glibc EWOULDBLOCK and EAGAIN should have
the same value though, so i guess ours is wrong... i wonder if we'll
break things if we changed it.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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(This is a repost of a message to debian-hppa, sorry if I hit anyone with it 
twice.)

I have a package that works perfectly on i386 but crashes on hppa. The code
is not anything that would be directly affected by the underlying hardware -
it makes no assumptions based on endianess or word size - and the crash
occurs because of a free of a null pointer inside the STL. I have attached
the backtrace. I'm really quite stumped by this one, so any help would be
greatly appreciated.

(Maybe something to do with static init order in dynamic libs?)

(gdb) bt
#0  0x4071210c in __libc_free (mem=0x0) at malloc.c:3142
#1  0x0002e95c in std::__malloc_alloc_template<0>::deallocate(void*,
 unsigned) ()
#2  0x0002de54 in std::__default_alloc_template<true, 0>::deallocate(void*,
unsigned) ()
#3  0x0002cd40 in std::allocator<char>::deallocate(char*, unsigned) ()
#4  0x0002aa20 in std::string::_Rep::_M_destroy(std::allocator<char> const&)
()
#5  0x00028230 in std::string::_Rep::_M_dispose(std::allocator<char> const&)
()
#6  0x00028a58 in std::string::assign(std::string const&) ()
#7  0x4019e93c in Aqsis::CqOptions::InitialiseDefaultOptions() (
    this=0x402c2a9c) at /usr/include/c++/3.2/bits/basic_string.h:338
#8  0x4019d9dc in CqOptions (this=0x402c2a9c) at options.cpp:193
#9  0x401e81c0 in __static_initialization_and_destruction_0
 (__initialize_p=1, __priority=65535) at renderer.cpp:50
#10 0x402061ec in _GLOBAL__I__ZN5Aqsis13pCurrRendererE ()
    at /usr/include/c++/3.2/bits/stl_iterator.h:622
#11 0x40272be8 in __do_global_ctors_aux () from /usr/lib/libaqsis.so.0
#12 0x4015dc4c in _init () from /usr/lib/libaqsis.so.0
#13 0x4000cf8c in call_init () from /lib/ld.so.1
#14 0x4000d0fc in _dl_init () from /lib/ld.so.1
#15 0x400023dc in _dl_start_user () from /lib/ld.so.1
(gdb)

Thanks,

-------------------------------------------------------


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Subject: [parisc-linux] Re: db3/db4 patch for Linux/HPPA [#6581]
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> the same applies to 4.0.14, as well.

Thank you for your email.  For future reference, your Support
Request number is #6581.  An engineer will be contacting you.

Regards,
Sleepycat Software Support

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Sleepycat Software Inc.		support@sleepycat.com
				http://www.sleepycat.com


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From: Keith Bostic <bostic@sleepycat.com>
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Subject: [parisc-linux] Re: db3/db4 patch for Linux/HPPA [#6581]
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Hi, my name is Keith Bostic and I'm with Sleepycat Software.
I'll own your Support Request for now.

Please copy "support@sleepycat.com" on any email you send,
and include the tag [#6581] in your email Subject lines.
That allows us to track the email discussion and for you to
get prompt replies even if I am not in the office.

> the same applies to 4.0.14, as well.

Thanks for finding this one!  I used a slightly different fix,
since MUTEX_UNSET isn't supposed to return a value.  Here's what
I ended up using, please let me know if you disagree with this
change.

	*** include/mutex.h	2002/08/15 06:42:38	11.70
	--- include/mutex.h	2002/09/10 01:36:48	11.71
	***************
	*** 435,441 ****
	  })
	  
	  #define	MUTEX_UNSET(tsl)	(*(tsl) = -1)
	! #define	MUTEX_INIT(tsl)		MUTEX_UNSET(tsl)
	  #endif
	  #endif
	  
	--- 435,441 ----
	  })
	  
	  #define	MUTEX_UNSET(tsl)	(*(tsl) = -1)
	! #define	MUTEX_INIT(tsl)		(MUTEX_UNSET(tsl), 0)
	  #endif
	  #endif
  
Regards,
--keith

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Keith Bostic
Sleepycat Software Inc.		bostic@sleepycat.com
118 Tower Rd.			+1-781-259-3139
Lincoln, MA 01773		http://www.sleepycat.com


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"Jon Sharp" wrote:
> It works fine (using minicom) at connection 
> speeds of up to 19200, after that the modem fails to respond to AT 
> commands altogether.

Does anyone know at which speeds HW handshaking is necessary?
730 is a pretty old machine.

grant


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Subject: Re: [parisc-linux] Modem communication, HP 730
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I know the internal modem of the K-class is limited to 19200.  All of
the support modems we install for the systems are slowed down to 19200
even though they are 56k.  Coincidence?

derek


--- Grant Grundler <grundler@dsl2.external.hp.com> wrote:
> "Jon Sharp" wrote:
> > It works fine (using minicom) at connection 
> > speeds of up to 19200, after that the modem fails to respond to AT 
> > commands altogether.
> 
> Does anyone know at which speeds HW handshaking is necessary?
> 730 is a pretty old machine.
> 
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: [parisc-linux] E55
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I was just curious how far in the boot process you E55 guys get.  I
just tried to load the one I have in the office tonight.  I retrofitted
it with an A1703-60003 LAN/Console/SCSI card I pulled out of one of our
"crash and burn" H70 boxes.  It gets past the "console" message about
"if this is the last thing you see" then starts dumping the stacks and
ends in a Kernal error 15.  This card doesn't use the mux port to
connect the console it uses a PS/2 type connector to the card and a
DB25 connector to the terminal.  Just wanted to see how this compares
to the other E Series machines out there.

derek

__________________________________________________
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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Modem communication, HP 730
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Derek Engelhaupt wrote:
> I know the internal modem of the K-class is limited to 19200.  All of
> the support modems we install for the systems are slowed down to 19200
> even though they are 56k.  Coincidence?

Maybe not.  Does the modem connect directly the console manager or
whatever it's called? That might be the limiting factor.

Could I cut off the goofy connector for K-class modem, solder on a DB-9
(or DB25) and have a cool external 56k Modem?
If so, I only need to know what the pinout is since power probably
comes through the cable as well.

I've seen so many of those go in the trash here.

grant


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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] E55
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I have been playing with an E35 and I can get the boot to go farther
then that.  Right now the boot is failing somewhere between the LED
detection and the POSIX conformance testing by UNIFIX.  I do not
really care about this failure right now since I am really only
interested in the discovering the missing devices on these systems.

Tonight, I found the missing devices on the system and I am currently
working on figuring out how to integrate this discovery into the
bus walk code.  I hope to have a patch committed within the next day
or so which detects all the devices on the system.  After that I will
add this failure to my TODO list (if the ESIEE will still let me have
access to this system, but i am hoping that someone else will take the
challenge and find/fix the problem :))

Thanks,

- Ryan


On Mon, 2002-09-09 at 23:00, Derek Engelhaupt wrote:
> I was just curious how far in the boot process you E55 guys get.  I
> just tried to load the one I have in the office tonight.  I retrofitted
> it with an A1703-60003 LAN/Console/SCSI card I pulled out of one of our
> "crash and burn" H70 boxes.  It gets past the "console" message about
> "if this is the last thing you see" then starts dumping the stacks and
> ends in a Kernal error 15.  This card doesn't use the mux port to
> connect the console it uses a PS/2 type connector to the card and a
> DB25 connector to the terminal.  Just wanted to see how this compares
> to the other E Series machines out there.
> 
> derek
> 
> __________________________________________________
> Yahoo! - We Remember
> 9-11: A tribute to the more than 3,000 lives lost
> http://dir.remember.yahoo.com/tribute
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: Re: [parisc-linux] Modem communication, HP 730
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Grant,

That thing you speak of is not the modem...the modem is inside the K. 
That thing is called a LAM.  Local Access Module.  It varied from
country to country so they don't have to change the modem only the LAM.
 The modem acctually plugs into the Core i/o board via a set of about
20 pins that actually come throught the modem board.  Very easy to bend
and get out of alignment.

derek

--- Grant Grundler <grundler@dsl2.external.hp.com> wrote:
> Derek Engelhaupt wrote:
> > I know the internal modem of the K-class is limited to 19200.  All
> of
> > the support modems we install for the systems are slowed down to
> 19200
> > even though they are 56k.  Coincidence?
> 
> Maybe not.  Does the modem connect directly the console manager or
> whatever it's called? That might be the limiting factor.
> 
> Could I cut off the goofy connector for K-class modem, solder on a
> DB-9
> (or DB25) and have a cool external 56k Modem?
> If so, I only need to know what the pinout is since power probably
> comes through the cable as well.
> 
> I've seen so many of those go in the trash here.
> 
> grant


__________________________________________________
Yahoo! - We Remember
9-11: A tribute to the more than 3,000 lives lost
http://dir.remember.yahoo.com/tribute


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Subject: [parisc-linux] Re: accessing TOS and VFAT partitions on Linux (fwd)
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I have submitted this to the m68k list first, hoping that someone might kno=
w,
and this is where Richard Zidlicky tried to help, but it looks like this _m=
ight_
be dependant upon an m68k-only patch... or is it?

Should the 2.4.18 kernel distributed thru the Woody/hppa tree be able to fi=
nd
not just Atari partitions, but also Atari's own flavor of DOS filesystem?

The kernel I run is based upon the defaults found in the 2.4.18-32 kernel, =
but
has Atari partitions support enabled.

PS:  I do not subscribe to parisc-linux, only to debian-hppa; please CC to =
me.

--=20
Martin-=C9ric Racine, Espoo, Finland.
"Kas sa tahad mind? - Nej!!! =C4r du en idiot?!!"
http://www.pp.fishpool.fi/~q-funk/

---------- Forwarded message ----------
Date: Tue, 10 Sep 2002 14:37:28 +0200
From: Richard Zidlicky <rz@linux-m68k.org>
To: Martin-=C9ric Racine <q-funk@pp.fishpool.fi>
Subject: Re: accessing TOS and VFAT partitions on Linux

On Tue, Sep 10, 2002 at 03:09:57PM +0300, Martin-=C9ric Racine wrote:
> On Tue, 10 Sep 2002, Richard Zidlicky wrote:
>=20
> > On Tue, Sep 10, 2002 at 08:36:29AM +0300, Martin-=C9ric Racine wrote:
> > > > > Is there any special trick to access those FAT partitions on Linu=
x?
> > > >=20
> > > > use 'atari=3Dyes' option to mount it.. doesn't appear to have it ma=
de into the
> > > > manpages yet?
> > >=20
> > > Nor does it appear to work. :(
> >=20
> > what does it say? Kernel or mount problem?=20
>=20
> The relevant part of /etc/fstab:
>=20
> /dev/sdb1 /TT030/C msdos defaults,errors=3Dremount-ro,atari=3Dyes 0 2
> /dev/sdb2 /TT030/D msdos defaults,errors=3Dremount-ro,atari=3Dyes 0 2
> /dev/sdb3 /TT030/E ext2 defaults,errors=3Dremount-ro 0 2
> /dev/sdb4 /TT030/F ext2 defaults,errors=3Dremount-ro 0 2
> /dev/sdb5 /TT030/G ext2 defaults,errors=3Dremount-ro 0 2
> /dev/sdb6 /TT030/H ext2 defaults,errors=3Dremount-ro 0 2
> /dev/sdb7 /TT030/I vfat defaults,errors=3Dremount-ro,atari=3Dyes 0 2
> /dev/sdb8 /TT030/J swap sw 0 2
> /dev/sdb9 /TT030/K ext2 defaults,errors=3Dremount-ro 0 2
> /dev/sdb10 /TT030/L msdos defaults,errors=3Dremount-ro,atari=3Dyes 0 2
> /dev/sdb11 /TT030/M ext2 defaults,errors=3Dremount-ro 0 2
>=20
> <root@zarya:/root># mount -a
> mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
>        or too many mounted file systems
> mount: wrong fs type, bad option, bad superblock on /dev/sdb2,
>        or too many mounted file systems
> mount: wrong fs type, bad option, bad superblock on /dev/sdb7,
>        or too many mounted file systems
> mount: wrong fs type, bad option, bad superblock on /dev/sdb10,
>        or too many mounted file systems

this looks like kernel problem than.. not quite sure if or when
that stuff was ever merged into mainline kernel. Certainly not
before 2.4.13.

>=20
> Linux zarya 2.4.18 #3 ti elo=A027 02:15:57 EEST 2002 parisc unknown unkno=
wn GNU/Linux
>=20
> > Quite possible that you will need to fetch a kernel from linux-m68k-cvs=
=2Eapia.dhs.org
>=20
> You produce non-m68k kernels too? ;-)

the diff between m68k and Linus tree is very small in 2.4.19, our
kernels should work perfectly on x86. Certainly not optimised for
parisc though :(
Compare your fs/fat/inode.c with ours, possibly also 2.4.19.

> > > Is that "atari=3Dyes" option found only in a special version of mount=
?
> >=20
> > doesn't appear like special support were required here, I know only the=
=20
> > kernel side of it. It would be possible to compile a special 386 kernel=
=20
> > with that parameter hardcoded into it (in fs/fat/inode.c change=20
> > #ifdef CONFIG_ATARI to #if 1). Might not work with ordinary MSDOS volum=
es
> > very well than.
>=20
> That's not desirable, of course.

might be worth a try, after looking at the stuff it appears to do some
autodetection. It should certainly continue to work at least on MSDOS
floppies.

Richard





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Subject: [parisc-linux] HPUX guru needed -> definition of EWOULDBLOCK in /usr/include/asm/errno.h
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> 
> On some SysV systems EAGAIN != EWOULDBLOCK. I think we inherited the
> errno definitions from HPUX...
> 
> glibc's documentation says:
> 
> Portability Note: In many older Unix systems, this condition was indicated by EWOULDBLOCK, which was a distinct error code different from EAGAIN. To make your program portable, you should check for both codes and treat them the same. 
> 
> sounds like good advice to me.. :-)
> 
> it does say, however, that for glibc EWOULDBLOCK and EAGAIN should have
> the same value though, so i guess ours is wrong... i wonder if we'll
> break things if we changed it.
> 
> randolph

I agree with randolph, you should change the code to check for EAGAIN aswell.

On the other hand...

We have to do both of the following in order to maintain backwards compatibility.
I'm all for ignoring that and just doing 'b' :}

a. Emulate EWOULDBLOCK == EAGAIN in assembly during syscall errors.
	- Added code to glibc :(

See:
glibc-2.2.5/sysdeps/unix/i386/sysdep.S
glibc-2.2.5/sysdeps/unix/sparc/sysdep.S
glibc-2.2.5/sysdeps/unix/x86_64/sysdep.S
glibc-2.2.5/sysdeps/unix/arm/sysdep.S
...

b. Just change the kernel header to alias EWOULDBLOCK as EAGAIN.

--- linux/include/asm-parisc/errno.h	1999-12-24 12:05:04.000000000 -0500
+++ linux/include/asm-parisc/errno.h.new	2002-09-10 12:09:52.000000000 -0400
@@ -134,7 +134,7 @@
 
 #define	EALREADY	244	/* Operation already in progress */
 #define	EINPROGRESS	245	/* Operation now in progress */
-#define	EWOULDBLOCK	246	/* Operation would block (Linux returns EAGAIN) */
+#define	EWOULDBLOCK	EAGAIN	/* Operation would block (Linux returns EAGAIN) */
 #define	ENOTEMPTY	247	/* Directory not empty */
 #define	ENAMETOOLONG	248	/* File name too long */
 #define	ELOOP		249	/* Too many symbolic links encountered */

This seems best since I don't really see any code in ioctl32.c that returns
EWOULDBLOCK :) We just confuse the applicaiton by providing a different value.
Does this have anything to do with HPUX compatibility? Would an HPUX application
expect different semantic meansings from these two values?

c.



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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] E55
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	Ryan Bradetich <rbradetich@uswest.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:16090

I have the E55 as it is, without any additional card, 
and with my PDC Console driver I can completely boot
the system and work on it. BUT: Only via NFS Root,
as there is currently no SCSI support, no support
for the MUX (except port 0 as console with the PDC
driver) and without parallel (printer) port.

But Linux runs completely, including login, remote
X usage (xterm, etc...), access to the internet via
LAN, etc, ....

Hi Ryan, you have found the device ? This one on the
BC ? Sounds gooooooood !

Christoph


Derek Engelhaupt wrote:
> 
> I was just curious how far in the boot process you E55 guys get.  I
> just tried to load the one I have in the office tonight.  I retrofitted
> it with an A1703-60003 LAN/Console/SCSI card I pulled out of one of our
> "crash and burn" H70 boxes.  It gets past the "console" message about
> "if this is the last thing you see" then starts dumping the stacks and
> ends in a Kernal error 15.  This card doesn't use the mux port to
> connect the console it uses a PS/2 type connector to the card and a
> DB25 connector to the terminal.  Just wanted to see how this compares
> to the other E Series machines out there.
> 
> derek
> 
> __________________________________________________
> Yahoo! - We Remember
> 9-11: A tribute to the more than 3,000 lives lost
> http://dir.remember.yahoo.com/tribute
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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Hi Randolph,

> Portability Note: In many older Unix systems, this condition was indicated by EWOULDBLOCK, which was a distinct error code different from EAGAIN. To make your program portable, you should check for both codes and treat them the same.
>
> sounds like good advice to me.. :-)

It's fixed this way in current zebra CVS. However, there might be other
applications which might be hit by this, as well.

Cheers,
--jochen



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From: Arto Jantunen <viiru@debian.org>
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Subject: [parisc-linux] SMP problems
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This is a HP9000/R390 machine, or atleast the previous owner
said so. It has two PA8200 cpu's running at 240Mhz, but I have
disabled the second cpu for debuging this problem. As you can see
from the attached minicom capture, if running an SMP kernel with
only one cpu, it crashes. It also crashes when running on two cpu's,
which is why I am reporting this. This proves that the problem has
nothing to do with the two cpu's stepping on each others toes or
anything. The machine runs perfectly stable on an UP kernel. Any
comments, suggestions of things that I could do to help someone
debug it and anything else is welcome. Please CC me on replies,
I'm not on the list.

--
Arto Jantunen

--17pEHd4RhPHOinZp
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Firmware Version  38.39

Duplex Console IO Dependent Code (IODC) revision 0

---------------------------------------------------------------------------=
---
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
---------------------------------------------------------------------------=
---

  Processor   Speed            State           Coprocessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------
      0       240 MHz   Active                 Functional            2 MB
      1       240 MHz   Stopped:Deconfigured   Unknown               2 MB

  Central Bus Speed (in MHz)  :        120=20

  Model: R390/2

  Available memory (bytes)    : 1073733632=20
  Good memory required (bytes):   86876160=20

  Primary boot path:    8/4.1   (dec)  =20
  Alternate boot path:  8/4.6   (dec)  =20
  Console path:         8/16/4.0   (dec)  =20
  Keyboard path:        8/16/7.0   (dec)  =20

CPU 0
WARNING:  Memory has been initialized, but not tested as a result of
          FASTBOOT being enabled.  To test memory, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


Processor is starting autoboot process.

To discontinue, press any key within 10 seconds.

10 seconds expired.
Proceeding...

Trying Primary Boot Path
------------------------

Booting...=20
Boot IO Dependent Code (IODC) revision 152


HARD Booted.
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002

Partition Start(MB) End(MB) Id Type
1               1      16   f0 Palo
2              49    1002   82 swap
3            1003    4094   83 ext2
4              17      48   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 3687647 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=3D/dev/sda3 HOME=3D/ console=3DttyS0 TERM=3D=
vt102 palo_kernel=3D4/vmlinux'
Selected kernel: /vmlinux from partition 4
ELF32 executable
Entry 00100000 first 00100000 n 6
Segment 0 load 00100000 size 1893508 mediaptr 0x1000
Segment 1 load 002d0000 size 596888 mediaptr 0x1d0000
Segment 2 load 00364000 size 221560 mediaptr 0x262000
Segment 3 load 0039c000 size 8192 mediaptr 0x299000
Segment 4 load 003a0000 size 32768 mediaptr 0x29b000
Segment 5 load 003e38a4 size 82000 mediaptr 0x2a38a4
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.19-pa14 (root@elli) (gcc version 3.0.4) #1 SMP Wed Sep 11=
 12:54:30 EEST 2002
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005ba0 00000491 00000000 00000002 7777173a 100000f0 00000008 000000=
b2 000000b2
vers  00000501
CPUID vers 14 rev 23 (0x000001d7)
capabilities 0x3
model 9000/800/R390
Total Memory: 1024 Mb
pagetable_init
On node 0 totalpages: 262144
zone(0): 262144 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=3D/dev/sda3 HOME=3D/ console=3DttyS0 TERM=3Dvt102=
 palo_kernel=3D4/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 478.41 BogoMIPS
Memory: 1033080k available
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode cache hash table entries: 65536 (order: 7, 524288 bytes)
Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 65536 (order: 6, 262144 bytes)
Page-cache hash table entries: 262144 (order: 8, 1048576 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
2. Bluefish Add-on FW-SCSI (4) at 0xf1004000 [8/4], versions 0x13, 0x1, 0x89
3. HP HSC-PCI Cards (4) at 0xf1008000 [8/8], versions 0x4, 0x0, 0x9d
4. UL 550 Lasi Core BA (11) at 0xffd00000 [8/16], versions 0x2f, 0x0, 0x81,=
  additional addresses: 0xffd0c000 0xffc00000=20
5. UL 550 Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x2f, 0x0, =
0x74,  additional addresses: 0xffd01000 0xffd03000=20
6. UL 550 Lasi Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x2f, 0x0,=
 0x8c
7. UL 550 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x2f, 0x0, 0x82
8. UL 350 Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x2f, 0x0,=
 0x8a
9. UL 550 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x2f, 0x0, 0=
x84
10. UL 550 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x2f, 0x0, =
0x84
11. UL 550 Core Wax BA (11) at 0xffe00000 [8/20], versions 0x31, 0x0, 0x8e
12. UL 550 Wax Core RS-232 (10) at 0xffe02000 [8/20/2], versions 0x31, 0x0,=
 0x8c
13. UL 550 Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x31, 0x0, 0x9=
0,  additional addresses: 0xffc88000=20
14. U2-IOA BC GSC+ Port (7) at 0xf103f000 [8/63], versions 0x501, 0x1, 0xc
15. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb
16. Bluefish Add-on FW-SCSI (4) at 0xf180c000 [10/12], versions 0x13, 0x1, =
0x89
17. U2-IOA BC GSC+ Port (7) at 0xf183f000 [10/63], versions 0x501, 0x1, 0xc
18. UL 2w U+/240 (350/550) (0) at 0xfffa0000 [32], versions 0x5ba, 0x0, 0x4
19. Memory (1) at 0xfffb1000 [49], versions 0x7e, 0x0, 0x9
CPU(s): 1 x PA8200 (PCX-U+) at 240.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
LED display at ffd0c000 registered
Wax at 0xffe00000 found.
Wax EISA Adapter found at 0xfc000000
EISA EEPROM at 0xffc88000
Enumerating EISA bus
EISA slot 1 a configured board was not detected ( expected ___FFFF)
Dino version 3.x (card mode) found at 0xf1008000
Dino: Failed to allocate memory region
POSIX conformance testing by UNIFIX
SMP: Bootstrap processor only.
SMP: Total 1 of 1 processors activated (478.41 BogoMIPS noticed).
Waiting on wait_init_idle (map =3D 0x0)
All processors have done init_idle
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch enabled, polling @ 0xf0140000.
Starting kswapd
VFS: Diskquotas version dquot_6.4.0 initialized
Journalled Block Device driver loaded
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_P=
CI enabled
ttyS00 at iomem 0xffd05800 (irq =3D 90) is a 16550A
ttyS01 at iomem 0xffe02800 (irq =3D 121) is a 16550A
PS/2 keyboard port at 0xffd08000 (irq 69) found, no device attached.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Found i82596 at 0xffd07000, IRQ 87
eth0: 82596 at 0xffd07000, 08 00 09 A3 38 14 IRQ 87.
82596.c $Revision: 1.29 $
SCSI subsystem driver Revision: 1.00
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 36
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 37
ncr53c8xx: 53c720 detected
ncr53c720-1: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3b-20010512
scsi1 : ncr53c8xx-3.4.3b-20010512
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP15
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP15
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
53c700: Version 2.7 By James.Bottomley@HansenPartnership.com
scsi2: 53c710 rev 2=20
scsi2 : LASI SCSI 53c700
scsi2: (2:0) Synchronous at offset 8, period 100ns
  Vendor: HP        Model: DVD-ROM 6x/32x    Rev: 1.08
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi2: (3:0) Synchronous at offset 8, period 100ns
  Vendor: HP        Model: C1537A            Rev: HP02
  Type:   Sequential-Access                  ANSI SCSI revision: 02
st: Version 20020205, bufsize 32768, wrt 30720, max init. bufs 4, s/g segs =
16
Attached scsi tape st0 at scsi2, channel 0, id 3, lun 0
Attached scsi disk sda at scsi0, channel 0, id 1, lun 0
Attached scsi disk sdb at scsi0, channel 0, id 2, lun 0
Attached scsi disk sdc at scsi0, channel 0, id 3, lun 0
Attached scsi disk sdd at scsi0, channel 0, id 4, lun 0
Attached scsi disk sde at scsi0, channel 0, id 5, lun 0
Attached scsi disk sdf at scsi0, channel 0, id 6, lun 0
Attached scsi disk sdg at scsi1, channel 0, id 1, lun 0
Attached scsi disk sdh at scsi1, channel 0, id 2, lun 0
Attached scsi disk sdi at scsi1, channel 0, id 3, lun 0
Attached scsi disk sdj at scsi1, channel 0, id 4, lun 0
Attached scsi disk sdk at scsi1, channel 0, id 5, lun 0
Attached scsi disk sdl at scsi1, channel 0, id 6, lun 0
ncr53c720-0-<1,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
ncr53c720-0-<2,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdb: 8388314 512-byte hdwr sectors (4295 MB)
 sdb: unknown partition table
ncr53c720-0-<3,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdc: 8388314 512-byte hdwr sectors (4295 MB)
 sdc: unknown partition table
ncr53c720-0-<4,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdd: 8388314 512-byte hdwr sectors (4295 MB)
 sdd: unknown partition table
ncr53c720-0-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sde: 8388314 512-byte hdwr sectors (4295 MB)
 sde: unknown partition table
ncr53c720-0-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdf: 8388314 512-byte hdwr sectors (4295 MB)
 sdf: unknown partition table
ncr53c720-1-<1,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdg: 8388314 512-byte hdwr sectors (4295 MB)
 sdg: unknown partition table
ncr53c720-1-<2,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdh: 8388314 512-byte hdwr sectors (4295 MB)
 sdh: unknown partition table
ncr53c720-1-<3,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdi: 8388314 512-byte hdwr sectors (4295 MB)
 sdi: unknown partition table
ncr53c720-1-<4,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdj: 8388314 512-byte hdwr sectors (4295 MB)
 sdj: unknown partition table
ncr53c720-1-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdk: 8388314 512-byte hdwr sectors (4295 MB)
 sdk: unknown partition table
ncr53c720-1-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdl: 8388314 512-byte hdwr sectors (4295 MB)
 sdl: unknown partition table
Attached scsi CD-ROM sr0 at scsi2, channel 0, id 2, lun 0
sr0: scsi3-mmc drive: 0x/0x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :   504.400 MB/sec
   8regs_prefetch:   443.600 MB/sec
   32regs    :   459.600 MB/sec
   32regs_prefetch:   432.400 MB/sec
raid5: using function: 8regs (504.400 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 1024 buckets, 48Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 216k freed
INIT: version 2.84 booting
Activating swap.
Adding Swap: 977140k swap-space (priority -1)
Checking root file system...
fsck 1.28 (31-Aug-2002)
/dev/sda3: clean, 30096/396000 files, 160528/791616 blocks
System time was Thu Sep 12 05:23:22 UTC 2002.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Thu Sep 12 05:23:20 UTC 2002.
Calculating module dependencies... done.
Loading modules:=20
Starting RAID devices:  [events: 00000012]
 [events: 00000012]
 [events: 00000012]
 [events: 00000012]
 [events: 00000012]
 [events: 00000012]
md: autorun ...
md: considering sdg ...
md:  adding sdg ...
md:  adding sdf ...
md:  adding sde ...
md:  adding sdd ...
md:  adding sdc ...
md:  adding sdb ...
md: created md0
md: bind<sdb,1>
md: bind<sdc,2>
md: bind<sdd,3>
md: bind<sde,4>
md: bind<sdf,5>
md: bind<sdg,6>
md: running: <sdg><sdf><sde><sdd><sdc><sdb>
md: sdg's event counter: 00000012
md: sdf's event counter: 00000012
md: sde's event counter: 00000012
md: sdd's event counter: 00000012
md: sdc's event counter: 00000012
md: sdb's event counter: 00000012
md0: max total readahead window set to 992k
md0: 4 data-disks, max readahead per data-disk: 248k
raid5: spare disk sdg
raid5: device sdf operational as raid disk 4
raid5: device sde operational as raid disk 3
raid5: device sdd operational as raid disk 2
raid5: device sdc operational as raid disk 1
raid5: device sdb operational as raid disk 0
raid5: allocated 5436kB for md0
raid5: raid level 5 set md0 active with 5 out of 5 devices, algorithm 2
RAID5 conf printout:
 --- rd:5 wd:5 fd:0
 disk 0, s:0, o:1, n:0 rd:0 us:1 dev:sdb
 disk 1, s:0, o:1, n:1 rd:1 us:1 dev:sdc
 disk 2, s:0, o:1, n:2 rd:2 us:1 dev:sdd
 disk 3, s:0, o:1, n:3 rd:3 us:1 dev:sde
 disk 4, s:0, o:1, n:4 rd:4 us:1 dev:sdf
RAID5 conf printout:
 --- rd:5 wd:5 fd:0
 disk 0, s:0, o:1, n:0 rd:0 us:1 dev:sdb
 disk 1, s:0, o:1, n:1 rd:1 us:1 dev:sdc
 disk 2, s:0, o:1, n:2 rd:2 us:1 dev:sdd
 disk 3, s:0, o:1, n:3 rd:3 us:1 dev:sde
 disk 4, s:0, o:1, n:4 rd:4 us:1 dev:sdf
md: updating md0 RAID superblock on device
md: sdg [events: 00000013]<6>(write) sdg's sb offset: 4194048
md: sdf [events: 00000013]<6>(write) sdf's sb offset: 4194048
md: sde [events: 00000013]<6>(write) sde's sb offset: 4194048
md: sdd [events: 00000013]<6>(write) sdd's sb offset: 4194048
md: sdc [events: 00000013]<6>(write) sdc's sb offset: 4194048
md: sdb [events: 00000013]<6>(write) sdb's sb offset: 4194048
md: ... autorun DONE.
/dev/md0 done.
Checking all file systems...
fsck 1.28 (31-Aug-2002)
/dev/sda4: clean, 25/8256 files, 18237/32769 blocks
Setting kernel variables.
Mounting local filesystems...
/dev/sda4 on /boot type ext2 (rw)
Running 0dns-down to make sure resolv.conf is ok...done.
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: eth0: link ok.
done.

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Thu Sep 12 08:23:37 EEST 2002

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting OpenLDAP: slapd.
Starting internet superserver: inetd.
Starting mail transport agent: Postfix.
Starting OpenBSD Secure Shell server: sshd.
Starting teapop: teapop.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.

Debian GNU/Linux testing/unstable elli ttyS0

elli login: root
Password:=20
Last login: Wed Sep 11 15:47:34 2002 on ttyS0
Linux elli 2.4.19-pa14 #1 SMP Wed Sep 11 12:54:30 EEST 2002 parisc unknown =
unknown GNU/Linux

Most of the programs included with the Debian GNU/Linux system are
freely redistributable; the exact distribution terms for each program
are described in the individual files in /usr/share/doc/*/copyright

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
elli:~# uname -=08 =08=08 =08=08 =08=08 =08=08 =08=08 =08=08 =08=07=07=07=
=07cat /proc/pcu=08 =08=08 =08=08 =08cpuinfo
processor	: 0
cpu family	: PA-RISC 2.0
cpu		: PA8200 (PCX-U+)
cpu MHz		: 240.000000
model		: 9000/800/R390
model name	: UL 2w U+/240 (350/550)
hversion	: 0x00005ba0
sversion	: 0x00000491
I-cache		: 2048 KB
D-cache		: 2048 KB (WB)
ITLB entries	: 120
DTLB entries	: 120 - shared with ITLB
bogomips	: 478.41
software id	: 2004293434

elli:~# sync && apt-get update
0% [Working]            Hit http://security.debian.org stable/updates/main =
Packages
            Hit http://security.debian.org stable/updates/main Release
            Hit http://security.debian.org stable/updates/contrib Packages
            Hit http://security.debian.org stable/updates/contrib Release
            Hit http://security.debian.org stable/updates/non-free Packages
            Hit http://security.debian.org stable/updates/non-free Release
            19% [Connecting to ftp.fi.debian.org] [Waiting for file]       =
                                                 Get:1 http://non-us.debian=
.org unstable/non-US/main Packages [34.2kB]
                                                        3% [Connecting to f=
tp.fi.debian.org (130.230.54.99)] [1 Packages 1106/34.2kB 3%]              =
                                                                  Get:2 htt=
p://ftp.fi.debian.org unstable/main Packages [1945kB]
                                                                           =
     0% [2 Packages 1093/1945kB 0%] [1 Packages 8346/34.2kB 24%]           =
                                                7% [2 Packages 115485/1945k=
B 5%] [Waiting for file]                                                   =
Get:3 http://non-us.debian.org unstable/non-US/main Release [89B]
                                                   Hit http://non-us.debian=
.org unstable/non-US/contrib Packages
                                                   Get:4 http://non-us.debi=
an.org unstable/non-US/contrib Release [92B]
                                                   Hit http://non-us.debian=
.org unstable/non-US/non-free Packages
                                                   Get:5 http://non-us.debi=
an.org unstable/non-US/non-free Release [93B]
                                                   Hit http://non-us.debian=
.org stable/non-US/main Sources
                                                   Hit http://non-us.debian=
.org stable/non-US/main Release
                                                   Hit http://non-us.debian=
.org stable/non-US/contrib Sources
7% [2 Packages 115485/1945kB 5%] [Waiting for file]                        =
                           Hit http://non-us.debian.org stable/non-US/contr=
ib Release
7% [2 Packages 115485/1945kB 5%] [Waiting for file]                        =
                           7% [1 Packages gzip 0] [2 Packages 115485/1945kB=
 5%] [Waiting for file]                                                    =
                   Hit http://non-us.debian.org stable/non-US/non-free Sour=
ces
                                                                       Hit =
http://non-us.debian.org stable/non-US/non-free Release
                                                                       10% =
[1 Packages gzip 0] [2 Packages 174853/1945kB 8%]                          =
                           11% [2 Packages 190781/1945kB 9%]               =
                  15% [2 Packages 280557/1945kB 14%]20% [2 Packages 376125/=
1945kB 19%]25% [2 Packages 465901/1945kB 23%]30% [2 Packages 564365/1945kB =
29%]34% [2 Packages 649797/1945kB 33%]37% [2 Packages 712061/1945kB 36%]41%=
 [2 Packages 783013/1945kB 40%]45% [2 Packages 856861/1945kB 44%]          =
                        48% [2 Packages 924917/1945kB 47%]                 =
                   153kB/s 6s51% [2 Packages 992973/1945kB 51%]            =
                        153kB/s 6s55% [2 Packages 1072613/1945kB 55%]      =
                             153kB/s 5s59% [2 Packages 1152253/1945kB 59%] =
                                  153kB/s 5s62% [2 Packages 1198589/1945kB =
61%]                                   153kB/s 4s67% [2 Packages 1292709/19=
45kB 66%]                                   153kB/s 4s70% [2 Packages 13607=
65/1945kB 69%]                                   153kB/s 3s74% [2 Packages =
1431717/1945kB 73%]                                   153kB/s 3s78% [2 Pack=
ages 1509909/1945kB 77%]                                   153kB/s 2s81% [2=
 Packages 1585205/1945kB 81%]                                   153kB/s 2s8=
5% [2 Packages 1661949/1945kB 85%]                                   153kB/=
s 1s90% [2 Packages 1750277/1945kB 89%]                                   1=
53kB/s 1s93% [2 Packages 1813989/1945kB 93%]                               =
    153kB/s 0s97% [2 Packages 1897973/1945kB 97%]                          =
         150kB/s 0s                                                        =
                        Get:6 http://ftp.fi.debian.org unstable/main Releas=
e [82B]
                                                                           =
     Hit http://ftp.fi.debian.org unstable/non-free Packages
                                                                           =
     Get:7 http://ftp.fi.debian.org unstable/non-free Release [86B]
                                                                           =
     Get:8 http://ftp.fi.debian.org unstable/contrib Packages [47.8kB]
97% [8 Packages 2308/47.8kB 4%]                                       150kB=
/s 0s97% [2 Packages gzip 0] [8 Packages 2308/47.8kB 4%]                   =
150kB/s 0s                                                                 =
               Get:9 http://ftp.fi.debian.org unstable/contrib Release [85B]
                                                                           =
     Hit http://ftp.fi.debian.org stable/main Sources
                                                                           =
     Hit http://ftp.fi.debian.org stable/main Release
                                                                           =
     Hit http://ftp.fi.debian.org stable/non-free Sources
                                                                           =
     Hit http://ftp.fi.debian.org stable/non-free Release
                                                                           =
     Hit http://ftp.fi.debian.org stable/contrib Sources
                                                                           =
     Hit http://ftp.fi.debian.org stable/contrib Release
99% [2 Packages gzip 212992]                                          150kB=
/s 0s99% [2 Packages gzip 2093056]                                         =
150kB/s 0s99% [2 Packages gzip 4059136]                                    =
     150kB/s 0s99% [2 Packages gzip 5926912]                               =
          150kB/s 0s99% [Working]                                          =
               150kB/s 0s99% [8 Packages gzip 0]                           =
                    150kB/s 0s100% [Working]                               =
                         150kB/s 0s                                        =
                                        Fetched 2027kB in 15s (131kB/s)
Reading Package Lists... 0%apt-get(285): unaligned access to 0x403cf08c at =
ip=3D0x4005e4f7
Reading Package=20

Lists... 0%
High Priority Machine Check (HPMC): Code=3D1 regs=3D102ea080 (Addr=3D000000=
00)

--17pEHd4RhPHOinZp--


From - Thu Nov 08 21:24:32 2018
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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SMP problems
Date: 12 Sep 2002 00:04:18 -0600
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To: Arto Jantunen <viiru@debian.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:16093

Hello Arto,

I have also seen this problem on the K460 when running SMP, where as
the UP kernel works fine.  I have started to debug this problem once,
but I got side tracked and have not gotten back to finish debugging
this problem. I do not think I will have time to look at it before
next week, but I will see what I can find next week.

Thanks,

- Ryan.

P.S. When talking with Richard Hirst about this problem, we thought it
might be a Copy On Write problem, since the problem appears to be with
apt-get.  Last time (a couple of months ago) I tried it dpkg -i <pkg>
worked fine.



On Wed, 2002-09-11 at 23:48, Arto Jantunen wrote:
> This is a HP9000/R390 machine, or atleast the previous owner
> said so. It has two PA8200 cpu's running at 240Mhz, but I have
> disabled the second cpu for debuging this problem. As you can see
> from the attached minicom capture, if running an SMP kernel with
> only one cpu, it crashes. It also crashes when running on two cpu's,
> which is why I am reporting this. This proves that the problem has
> nothing to do with the two cpu's stepping on each others toes or
> anything. The machine runs perfectly stable on an UP kernel. Any
> comments, suggestions of things that I could do to help someone
> debug it and anything else is welcome. Please CC me on replies,
> I'm not on the list.
> 
> --
> Arto Jantunen
> ----
> 




From - Thu Nov 08 21:24:32 2018
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From: Jeremy Drake <jeremyd@apptechsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SMP problems (hardware gurus, please read)
Date: Wed, 11 Sep 2002 23:52:28 -0700 (PDT)
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I have the exact same problem on my J5000.  apt-get update and samba are 
the two things that tend to crash it immediately.  It can run fairly well 
SMP w/o doing either of these.  Also, X is now also crashing SMP (not sure 
if/when things changed, as I wasn't running graphics for a while, and 
can't clearly remember running X on smp).

The HPMC had an odd thing in the IO stuff -

> > '9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:
> > 
> >  Rope     Word1        Word2            Word3
> > ------ ------------ ------------
> >    0    0x00000000   0x0e0cc009   0x00000000fed30048
> >    1    0x00000000   0x1e0cc009   0x00000000fed32048
> >    2    ----------   0x2e0cc229   ------------------
> >    3    ----------   0x3e0cc009   ------------------
> >    4    0x00000000   0x4e0cc009   0x00000000fed38048
> >    5    ----------   0x5e0cc009   ------------------
> >    6    0x00000000   0x6e0cc009   0x00000000fed3c048
> >    7    ----------   0x7e0cc009   ------------------

And here is one from another time:

'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc229   ------------------
   3    ----------   0x3f4fd808   ------------------
   4    0x00000000   0x40000008   0xffffffffffffffff
   5    ----------   0x50000008   ------------------
   6    0x00000000   0x60000008   0xffffffffffffffff
   7    ----------   0x70100008   ------------------

possibly, could you send the output of ser pim after such a crash.  Here's 
the general idea:

interrupt the boot process, and at the BOOT_ADMIN prompt type "ser 
clearpim".  then bo pri.  Crash the box, reboot it, interrupt it again, 
and type ser pim.  I am particularly interested in the io part (should be 
at the end)...

Also, are there any HP hardware gurus out there that can explain these odd 
io numbers?  Could they be relevant?


On Thu, 12 Sep 2002, Arto 
Jantunen wrote:

> This is a HP9000/R390 machine, or atleast the previous owner
> said so. It has two PA8200 cpu's running at 240Mhz, but I have
> disabled the second cpu for debuging this problem. As you can see
> from the attached minicom capture, if running an SMP kernel with
> only one cpu, it crashes. It also crashes when running on two cpu's,
> which is why I am reporting this. This proves that the problem has
> nothing to do with the two cpu's stepping on each others toes or
> anything. The machine runs perfectly stable on an UP kernel. Any
> comments, suggestions of things that I could do to help someone
> debug it and anything else is welcome. Please CC me on replies,
> I'm not on the list.
> 
> --
> Arto Jantunen
> 

-- 
During the next two hours, the system will be going up and down several
times, often with lin~po_~{po       ~poz~ppo\~{ o n~po_~{o[po	 ~y oodsou>#w4k**n~po_~{ol;lkld;f;g;dd;po\~{o





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From: Arto Jantunen <viiru@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SMP problems (hardware gurus, please read)
Date: Thu, 12 Sep 2002 12:10:18 +0300
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--LZvS9be/3tNcYl/X
Content-Type: text/plain; charset=us-ascii
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On Wed, Sep 11, 2002 at 11:52:28PM -0700, Jeremy Drake wrote:
> I have the exact same problem on my J5000.  apt-get update and samba are 
> the two things that tend to crash it immediately.  It can run fairly well 
> SMP w/o doing either of these.  Also, X is now also crashing SMP (not sure 
> if/when things changed, as I wasn't running graphics for a while, and 
> can't clearly remember running X on smp).
> 
> The HPMC had an odd thing in the IO stuff -
> 
> > > '9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:
> > > 
> > >  Rope     Word1        Word2            Word3
> > > ------ ------------ ------------
> > >    0    0x00000000   0x0e0cc009   0x00000000fed30048
> > >    1    0x00000000   0x1e0cc009   0x00000000fed32048
> > >    2    ----------   0x2e0cc229   ------------------
> > >    3    ----------   0x3e0cc009   ------------------
> > >    4    0x00000000   0x4e0cc009   0x00000000fed38048
> > >    5    ----------   0x5e0cc009   ------------------
> > >    6    0x00000000   0x6e0cc009   0x00000000fed3c048
> > >    7    ----------   0x7e0cc009   ------------------
> 
> And here is one from another time:
> 
> '9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:
> 
>  Rope     Word1        Word2            Word3
> ------ ------------ ------------
>    0    0x00000000   0x0e0cc009   0x00000000fed30048
>    1    0x00000000   0x1e0cc009   0x00000000fed32048
>    2    ----------   0x2e0cc229   ------------------
>    3    ----------   0x3f4fd808   ------------------
>    4    0x00000000   0x40000008   0xffffffffffffffff
>    5    ----------   0x50000008   ------------------
>    6    0x00000000   0x60000008   0xffffffffffffffff
>    7    ----------   0x70100008   ------------------
> 
> possibly, could you send the output of ser pim after such a crash.  Here's 
> the general idea:
> 
> interrupt the boot process, and at the BOOT_ADMIN prompt type "ser 
> clearpim".  then bo pri.  Crash the box, reboot it, interrupt it again, 
> and type ser pim.  I am particularly interested in the io part (should be 
> at the end)...
> 
> Also, are there any HP hardware gurus out there that can explain these odd 
> io numbers?  Could they be relevant?

I did this, but the stuff I got from ser pim is almost all zeroes.
I'm attaching it anyway, but I don't think it is correct. I rebooted
by shutting it down from the power switch, is there a "softer" way
to do it (I only have a serial console)?
--LZvS9be/3tNcYl/X
Content-Type: text/plain; charset=unknown-8bit
Content-Disposition: attachment; filename="minicom.cap"
Content-Transfer-Encoding: quoted-printable




Firmware Version  38.39

Duplex Console IO Dependent Code (IODC) revision 0

---------------------------------------------------------------------------=
---
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
---------------------------------------------------------------------------=
---

  Processor   Speed            State           Coprocessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------
      0       240 MHz   Active                 Functional            2 MB
      1       240 MHz   Stopped:Deconfigured   Unknown               2 MB

  Central Bus Speed (in MHz)  :        120=20

  Model: R390/2

  Available memory (bytes)    : 1073733632=20
  Good memory required (bytes):   86876160=20

  Primary boot path:    8/4.1   (dec)  =20
  Alternate boot path:  8/4.6   (dec)  =20
  Console path:         8/16/4.0   (dec)  =20
  Keyboard path:        8/16/7.0   (dec)  =20

CPU 0
WARNING:  Memory has been initialized, but not tested as a result of
          FASTBOOT being enabled.  To test memory, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


Processor is starting autoboot process.

To discontinue, press any key within 10 seconds.

10 seconds expired.
Proceeding...

Trying Primary Boot Path
------------------------

Booting...=20
Boot IO Dependent Code (IODC) revision 152


HARD Booted.
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002

Partition Start(MB) End(MB) Id Type
1               1      16   f0 Palo
2              49    1002   82 swap
3            1003    4094   83 ext2
4              17      48   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 3687647 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=3D/dev/sda3 HOME=3D/ console=3DttyS0 TERM=3D=
vt102 palo_kernel=3D4/vmlinux'
Selected kernel: /vmlinux from partition 4
ELF32 executable
Entry 00100000 first 00100000 n 6
Segment 0 load 00100000 size 1893508 mediaptr 0x1000
Segment 1 load 002d0000 size 596888 mediaptr 0x1d0000
Segment 2 load 00364000 size 221560 mediaptr 0x262000
Segment 3 load 0039c000 size 8192 mediaptr 0x299000
Segment 4 load 003a0000 size 32768 mediaptr 0x29b000
Segment 5 load 003e38a4 size 82000 mediaptr 0x2a38a4
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.19-pa14 (root@elli) (gcc version 3.0.4) #1 SMP Wed Sep 11=
 12:54:30 EEST 2002
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005ba0 00000491 00000000 00000002 7777173a 100000f0 00000008 000000=
b2 000000b2
vers  00000501
CPUID vers 14 rev 23 (0x000001d7)
capabilities 0x3
model 9000/800/R390
Total Memory: 1024 Mb
pagetable_init
On node 0 totalpages: 262144
zone(0): 262144 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=3D/dev/sda3 HOME=3D/ console=3DttyS0 TERM=3Dvt102=
 palo_kernel=3D4/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 478.41 BogoMIPS
Memory: 1033080k available
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode cache hash table entries: 65536 (order: 7, 524288 bytes)
Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 65536 (order: 6, 262144 bytes)
Page-cache hash table entries: 262144 (order: 8, 1048576 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
2. Bluefish Add-on FW-SCSI (4) at 0xf1004000 [8/4], versions 0x13, 0x1, 0x89
3. HP HSC-PCI Cards (4) at 0xf1008000 [8/8], versions 0x4, 0x0, 0x9d
4. UL 550 Lasi Core BA (11) at 0xffd00000 [8/16], versions 0x2f, 0x0, 0x81,=
  additional addresses: 0xffd0c000 0xffc00000=20
5. UL 550 Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x2f, 0x0, =
0x74,  additional addresses: 0xffd01000 0xffd03000=20
6. UL 550 Lasi Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x2f, 0x0,=
 0x8c
7. UL 550 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x2f, 0x0, 0x82
8. UL 350 Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x2f, 0x0,=
 0x8a
9. UL 550 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x2f, 0x0, 0=
x84
10. UL 550 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x2f, 0x0, =
0x84
11. UL 550 Core Wax BA (11) at 0xffe00000 [8/20], versions 0x31, 0x0, 0x8e
12. UL 550 Wax Core RS-232 (10) at 0xffe02000 [8/20/2], versions 0x31, 0x0,=
 0x8c
13. UL 550 Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x31, 0x0, 0x9=
0,  additional addresses: 0xffc88000=20
14. U2-IOA BC GSC+ Port (7) at 0xf103f000 [8/63], versions 0x501, 0x1, 0xc
15. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb
16. Bluefish Add-on FW-SCSI (4) at 0xf180c000 [10/12], versions 0x13, 0x1, =
0x89
17. U2-IOA BC GSC+ Port (7) at 0xf183f000 [10/63], versions 0x501, 0x1, 0xc
18. UL 2w U+/240 (350/550) (0) at 0xfffa0000 [32], versions 0x5ba, 0x0, 0x4
19. Memory (1) at 0xfffb1000 [49], versions 0x7e, 0x0, 0x9
CPU(s): 1 x PA8200 (PCX-U+) at 240.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
LED display at ffd0c000 registered
Wax at 0xffe00000 found.
Wax EISA Adapter found at 0xfc000000
EISA EEPROM at 0xffc88000
Enumerating EISA bus
EISA slot 1 a configured board was not detected ( expected ___FFFF)
Dino version 3.x (card mode) found at 0xf1008000
Dino: Failed to allocate memory region
POSIX conformance testing by UNIFIX
SMP: Bootstrap processor only.
SMP: Total 1 of 1 processors activated (478.41 BogoMIPS noticed).
Waiting on wait_init_idle (map =3D 0x0)
All processors have done init_idle
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch enabled, polling @ 0xf0140000.
Starting kswapd
VFS: Diskquotas version dquot_6.4.0 initialized
Journalled Block Device driver loaded
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_P=
CI enabled
ttyS00 at iomem 0xffd05800 (irq =3D 90) is a 16550A
ttyS01 at iomem 0xffe02800 (irq =3D 121) is a 16550A
PS/2 keyboard port at 0xffd08000 (irq 69) found, no device attached.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Found i82596 at 0xffd07000, IRQ 87
eth0: 82596 at 0xffd07000, 08 00 09 A3 38 14 IRQ 87.
82596.c $Revision: 1.29 $
SCSI subsystem driver Revision: 1.00
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 36
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 37
ncr53c8xx: 53c720 detected
ncr53c720-1: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3b-20010512
scsi1 : ncr53c8xx-3.4.3b-20010512
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP15
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP15
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
53c700: Version 2.7 By James.Bottomley@HansenPartnership.com
scsi2: 53c710 rev 2=20
scsi2 : LASI SCSI 53c700
scsi2: (2:0) Synchronous at offset 8, period 100ns
  Vendor: HP        Model: DVD-ROM 6x/32x    Rev: 1.08
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi2: (3:0) Synchronous at offset 8, period 100ns
  Vendor: HP        Model: C1537A            Rev: HP02
  Type:   Sequential-Access                  ANSI SCSI revision: 02
st: Version 20020205, bufsize 32768, wrt 30720, max init. bufs 4, s/g segs =
16
Attached scsi tape st0 at scsi2, channel 0, id 3, lun 0
Attached scsi disk sda at scsi0, channel 0, id 1, lun 0
Attached scsi disk sdb at scsi0, channel 0, id 2, lun 0
Attached scsi disk sdc at scsi0, channel 0, id 3, lun 0
Attached scsi disk sdd at scsi0, channel 0, id 4, lun 0
Attached scsi disk sde at scsi0, channel 0, id 5, lun 0
Attached scsi disk sdf at scsi0, channel 0, id 6, lun 0
Attached scsi disk sdg at scsi1, channel 0, id 1, lun 0
Attached scsi disk sdh at scsi1, channel 0, id 2, lun 0
Attached scsi disk sdi at scsi1, channel 0, id 3, lun 0
Attached scsi disk sdj at scsi1, channel 0, id 4, lun 0
Attached scsi disk sdk at scsi1, channel 0, id 5, lun 0
Attached scsi disk sdl at scsi1, channel 0, id 6, lun 0
ncr53c720-0-<1,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
ncr53c720-0-<2,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdb: 8388314 512-byte hdwr sectors (4295 MB)
 sdb: unknown partition table
ncr53c720-0-<3,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdc: 8388314 512-byte hdwr sectors (4295 MB)
 sdc: unknown partition table
ncr53c720-0-<4,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdd: 8388314 512-byte hdwr sectors (4295 MB)
 sdd: unknown partition table
ncr53c720-0-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sde: 8388314 512-byte hdwr sectors (4295 MB)
 sde: unknown partition table
ncr53c720-0-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdf: 8388314 512-byte hdwr sectors (4295 MB)
 sdf: unknown partition table
ncr53c720-1-<1,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdg: 8388314 512-byte hdwr sectors (4295 MB)
 sdg: unknown partition table
ncr53c720-1-<2,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdh: 8388314 512-byte hdwr sectors (4295 MB)
 sdh: unknown partition table
ncr53c720-1-<3,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdi: 8388314 512-byte hdwr sectors (4295 MB)
 sdi: unknown partition table
ncr53c720-1-<4,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdj: 8388314 512-byte hdwr sectors (4295 MB)
 sdj: unknown partition table
ncr53c720-1-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdk: 8388314 512-byte hdwr sectors (4295 MB)
 sdk: unknown partition table
ncr53c720-1-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdl: 8388314 512-byte hdwr sectors (4295 MB)
 sdl: unknown partition table
Attached scsi CD-ROM sr0 at scsi2, channel 0, id 2, lun 0
sr0: scsi3-mmc drive: 0x/0x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :   504.400 MB/sec
   8regs_prefetch:   443.600 MB/sec
   32regs    :   459.600 MB/sec
   32regs_prefetch:   432.400 MB/sec
raid5: using function: 8regs (504.400 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 1024 buckets, 48Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 216k freed
INIT: version 2.84 booting
Activating swap.
Adding Swap: 977140k swap-space (priority -1)
Checking root file system...
fsck 1.28 (31-Aug-2002)
/dev/sda3: clean, 30096/396000 files, 160528/791616 blocks
System time was Thu Sep 12 05:23:22 UTC 2002.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Thu Sep 12 05:23:20 UTC 2002.
Calculating module dependencies... done.
Loading modules:=20
Starting RAID devices:  [events: 00000012]
 [events: 00000012]
 [events: 00000012]
 [events: 00000012]
 [events: 00000012]
 [events: 00000012]
md: autorun ...
md: considering sdg ...
md:  adding sdg ...
md:  adding sdf ...
md:  adding sde ...
md:  adding sdd ...
md:  adding sdc ...
md:  adding sdb ...
md: created md0
md: bind<sdb,1>
md: bind<sdc,2>
md: bind<sdd,3>
md: bind<sde,4>
md: bind<sdf,5>
md: bind<sdg,6>
md: running: <sdg><sdf><sde><sdd><sdc><sdb>
md: sdg's event counter: 00000012
md: sdf's event counter: 00000012
md: sde's event counter: 00000012
md: sdd's event counter: 00000012
md: sdc's event counter: 00000012
md: sdb's event counter: 00000012
md0: max total readahead window set to 992k
md0: 4 data-disks, max readahead per data-disk: 248k
raid5: spare disk sdg
raid5: device sdf operational as raid disk 4
raid5: device sde operational as raid disk 3
raid5: device sdd operational as raid disk 2
raid5: device sdc operational as raid disk 1
raid5: device sdb operational as raid disk 0
raid5: allocated 5436kB for md0
raid5: raid level 5 set md0 active with 5 out of 5 devices, algorithm 2
RAID5 conf printout:
 --- rd:5 wd:5 fd:0
 disk 0, s:0, o:1, n:0 rd:0 us:1 dev:sdb
 disk 1, s:0, o:1, n:1 rd:1 us:1 dev:sdc
 disk 2, s:0, o:1, n:2 rd:2 us:1 dev:sdd
 disk 3, s:0, o:1, n:3 rd:3 us:1 dev:sde
 disk 4, s:0, o:1, n:4 rd:4 us:1 dev:sdf
RAID5 conf printout:
 --- rd:5 wd:5 fd:0
 disk 0, s:0, o:1, n:0 rd:0 us:1 dev:sdb
 disk 1, s:0, o:1, n:1 rd:1 us:1 dev:sdc
 disk 2, s:0, o:1, n:2 rd:2 us:1 dev:sdd
 disk 3, s:0, o:1, n:3 rd:3 us:1 dev:sde
 disk 4, s:0, o:1, n:4 rd:4 us:1 dev:sdf
md: updating md0 RAID superblock on device
md: sdg [events: 00000013]<6>(write) sdg's sb offset: 4194048
md: sdf [events: 00000013]<6>(write) sdf's sb offset: 4194048
md: sde [events: 00000013]<6>(write) sde's sb offset: 4194048
md: sdd [events: 00000013]<6>(write) sdd's sb offset: 4194048
md: sdc [events: 00000013]<6>(write) sdc's sb offset: 4194048
md: sdb [events: 00000013]<6>(write) sdb's sb offset: 4194048
md: ... autorun DONE.
/dev/md0 done.
Checking all file systems...
fsck 1.28 (31-Aug-2002)
/dev/sda4: clean, 25/8256 files, 18237/32769 blocks
Setting kernel variables.
Mounting local filesystems...
/dev/sda4 on /boot type ext2 (rw)
Running 0dns-down to make sure resolv.conf is ok...done.
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: eth0: link ok.
done.

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Thu Sep 12 08:23:37 EEST 2002

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting OpenLDAP: slapd.
Starting internet superserver: inetd.
Starting mail transport agent: Postfix.
Starting OpenBSD Secure Shell server: sshd.
Starting teapop: teapop.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.

Debian GNU/Linux testing/unstable elli ttyS0

elli login: root
Password:=20
Last login: Wed Sep 11 15:47:34 2002 on ttyS0
Linux elli 2.4.19-pa14 #1 SMP Wed Sep 11 12:54:30 EEST 2002 parisc unknown =
unknown GNU/Linux

Most of the programs included with the Debian GNU/Linux system are
freely redistributable; the exact distribution terms for each program
are described in the individual files in /usr/share/doc/*/copyright

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
elli:~# uname -=08 =08=08 =08=08 =08=08 =08=08 =08=08 =08=08 =08=07=07=07=
=07cat /proc/pcu=08 =08=08 =08=08 =08cpuinfo
processor	: 0
cpu family	: PA-RISC 2.0
cpu		: PA8200 (PCX-U+)
cpu MHz		: 240.000000
model		: 9000/800/R390
model name	: UL 2w U+/240 (350/550)
hversion	: 0x00005ba0
sversion	: 0x00000491
I-cache		: 2048 KB
D-cache		: 2048 KB (WB)
ITLB entries	: 120
DTLB entries	: 120 - shared with ITLB
bogomips	: 478.41
software id	: 2004293434

elli:~# sync && apt-get update
0% [Working]            Hit http://security.debian.org stable/updates/main =
Packages
            Hit http://security.debian.org stable/updates/main Release
            Hit http://security.debian.org stable/updates/contrib Packages
            Hit http://security.debian.org stable/updates/contrib Release
            Hit http://security.debian.org stable/updates/non-free Packages
            Hit http://security.debian.org stable/updates/non-free Release
            19% [Connecting to ftp.fi.debian.org] [Waiting for file]       =
                                                 Get:1 http://non-us.debian=
.org unstable/non-US/main Packages [34.2kB]
                                                        3% [Connecting to f=
tp.fi.debian.org (130.230.54.99)] [1 Packages 1106/34.2kB 3%]              =
                                                                  Get:2 htt=
p://ftp.fi.debian.org unstable/main Packages [1945kB]
                                                                           =
     0% [2 Packages 1093/1945kB 0%] [1 Packages 8346/34.2kB 24%]           =
                                                7% [2 Packages 115485/1945k=
B 5%] [Waiting for file]                                                   =
Get:3 http://non-us.debian.org unstable/non-US/main Release [89B]
                                                   Hit http://non-us.debian=
.org unstable/non-US/contrib Packages
                                                   Get:4 http://non-us.debi=
an.org unstable/non-US/contrib Release [92B]
                                                   Hit http://non-us.debian=
.org unstable/non-US/non-free Packages
                                                   Get:5 http://non-us.debi=
an.org unstable/non-US/non-free Release [93B]
                                                   Hit http://non-us.debian=
.org stable/non-US/main Sources
                                                   Hit http://non-us.debian=
.org stable/non-US/main Release
                                                   Hit http://non-us.debian=
.org stable/non-US/contrib Sources
7% [2 Packages 115485/1945kB 5%] [Waiting for file]                        =
                           Hit http://non-us.debian.org stable/non-US/contr=
ib Release
7% [2 Packages 115485/1945kB 5%] [Waiting for file]                        =
                           7% [1 Packages gzip 0] [2 Packages 115485/1945kB=
 5%] [Waiting for file]                                                    =
                   Hit http://non-us.debian.org stable/non-US/non-free Sour=
ces
                                                                       Hit =
http://non-us.debian.org stable/non-US/non-free Release
                                                                       10% =
[1 Packages gzip 0] [2 Packages 174853/1945kB 8%]                          =
                           11% [2 Packages 190781/1945kB 9%]               =
                  15% [2 Packages 280557/1945kB 14%]20% [2 Packages 376125/=
1945kB 19%]25% [2 Packages 465901/1945kB 23%]30% [2 Packages 564365/1945kB =
29%]34% [2 Packages 649797/1945kB 33%]37% [2 Packages 712061/1945kB 36%]41%=
 [2 Packages 783013/1945kB 40%]45% [2 Packages 856861/1945kB 44%]          =
                        48% [2 Packages 924917/1945kB 47%]                 =
                   153kB/s 6s51% [2 Packages 992973/1945kB 51%]            =
                        153kB/s 6s55% [2 Packages 1072613/1945kB 55%]      =
                             153kB/s 5s59% [2 Packages 1152253/1945kB 59%] =
                                  153kB/s 5s62% [2 Packages 1198589/1945kB =
61%]                                   153kB/s 4s67% [2 Packages 1292709/19=
45kB 66%]                                   153kB/s 4s70% [2 Packages 13607=
65/1945kB 69%]                                   153kB/s 3s74% [2 Packages =
1431717/1945kB 73%]                                   153kB/s 3s78% [2 Pack=
ages 1509909/1945kB 77%]                                   153kB/s 2s81% [2=
 Packages 1585205/1945kB 81%]                                   153kB/s 2s8=
5% [2 Packages 1661949/1945kB 85%]                                   153kB/=
s 1s90% [2 Packages 1750277/1945kB 89%]                                   1=
53kB/s 1s93% [2 Packages 1813989/1945kB 93%]                               =
    153kB/s 0s97% [2 Packages 1897973/1945kB 97%]                          =
         150kB/s 0s                                                        =
                        Get:6 http://ftp.fi.debian.org unstable/main Releas=
e [82B]
                                                                           =
     Hit http://ftp.fi.debian.org unstable/non-free Packages
                                                                           =
     Get:7 http://ftp.fi.debian.org unstable/non-free Release [86B]
                                                                           =
     Get:8 http://ftp.fi.debian.org unstable/contrib Packages [47.8kB]
97% [8 Packages 2308/47.8kB 4%]                                       150kB=
/s 0s97% [2 Packages gzip 0] [8 Packages 2308/47.8kB 4%]                   =
150kB/s 0s                                                                 =
               Get:9 http://ftp.fi.debian.org unstable/contrib Release [85B]
                                                                           =
     Hit http://ftp.fi.debian.org stable/main Sources
                                                                           =
     Hit http://ftp.fi.debian.org stable/main Release
                                                                           =
     Hit http://ftp.fi.debian.org stable/non-free Sources
                                                                           =
     Hit http://ftp.fi.debian.org stable/non-free Release
                                                                           =
     Hit http://ftp.fi.debian.org stable/contrib Sources
                                                                           =
     Hit http://ftp.fi.debian.org stable/contrib Release
99% [2 Packages gzip 212992]                                          150kB=
/s 0s99% [2 Packages gzip 2093056]                                         =
150kB/s 0s99% [2 Packages gzip 4059136]                                    =
     150kB/s 0s99% [2 Packages gzip 5926912]                               =
          150kB/s 0s99% [Working]                                          =
               150kB/s 0s99% [8 Packages gzip 0]                           =
                    150kB/s 0s100% [Working]                               =
                         150kB/s 0s                                        =
                                        Fetched 2027kB in 15s (131kB/s)
Reading Package Lists... 0%apt-get(285): unaligned access to 0x403cf08c at =
ip=3D0x4005e4f7
Reading Package=20

Lists... 0%
High Priority Machine Check (HPMC): Code=3D1 regs=3D102ea080 (Addr=3D000000=
00)

Interact with IPL (Y, N, or Cancel)?> n

Booting...=20
Boot IO Dependent Code (IODC) revision 152


HARD Booted.
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002

Partition Start(MB) End(MB) Id Type
1               1      16   f0 Palo
2              49    1002   82 swap
3            1003    4094   83 ext2
4              17      48   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 3687647 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=3D/dev/sda3 HOME=3D/ console=3DttyS0 TERM=3D=
vt102 palo_kernel=3D4/vmlinux'
Selected kernel: /vmlinux from partition 4
ELF32 executable
Entry 00100000 first 00100000 n 6
Segment 0 load 00100000 size 1893508 mediaptr 0x1000
Segment 1 load 002d0000 size 596888 mediaptr 0x1d0000
Segment 2 load 00364000 size 221560 mediaptr 0x262000
Segment 3 load 0039c000 size 8192 mediaptr 0x299000
Segment 4 load 003a0000 size 32768 mediaptr 0x29b000
Segment 5 load 003e38a4 size 82000 mediaptr 0x2a38a4
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.19-pa14 (root@elli) (gcc version 3.0.4) #1 SMP Wed Sep 11=
 12:54:30 EEST 2002
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005ba0 00000491 00000000 00000002 7777173a 100000f0 00000008 000000=
b2 000000b2
vers  00000501
CPUID vers 14 rev 23 (0x000001d7)
capabilities 0x3
model 9000/800/R390
Total Memory: 1024 Mb
pagetable_init
On node 0 totalpages: 262144
zone(0): 262144 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=3D/dev/sda3 HOME=3D/ console=3DttyS0 TERM=3Dvt102=
 palo_kernel=3D4/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 478.41 BogoMIPS
Memory: 1033080k available
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode cache hash table entries: 65536 (order: 7, 524288 bytes)
Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 65536 (order: 6, 262144 bytes)
Page-cache hash table entries: 262144 (order: 8, 1048576 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
2. Bluefish Add-on FW-SCSI (4) at 0xf1004000 [8/4], versions 0x13, 0x1, 0x89
3. HP HSC-PCI Cards (4) at 0xf1008000 [8/8], versions 0x4, 0x0, 0x9d
4. UL 550 Lasi Core BA (11) at 0xffd00000 [8/16], versions 0x2f, 0x0, 0x81,=
  additional addresses: 0xffd0c000 0xffc00000=20
5. UL 550 Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x2f, 0x0, =
0x74,  additional addresses: 0xffd01000 0xffd03000=20
6. UL 550 Lasi Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x2f, 0x0,=
 0x8c
7. UL 550 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x2f, 0x0, 0x82
8. UL 350 Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x2f, 0x0,=
 0x8a
9. UL 550 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x2f, 0x0, 0=
x84
10. UL 550 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x2f, 0x0, =
0x84
11. UL 550 Core Wax BA (11) at 0xffe00000 [8/20], versions 0x31, 0x0, 0x8e
12. UL 550 Wax Core RS-232 (10) at 0xffe02000 [8/20/2], versions 0x31, 0x0,=
 0x8c
13. UL 550 Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x31, 0x0, 0x9=
0,  additional addresses: 0xffc88000=20
14. U2-IOA BC GSC+ Port (7) at 0xf103f000 [8/63], versions 0x501, 0x1, 0xc
15. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb
16. Bluefish Add-on FW-SCSI (4) at 0xf180c000 [10/12], versions 0x13, 0x1, =
0x89
17. U2-IOA BC GSC+ Port (7) at 0xf183f000 [10/63], versions 0x501, 0x1, 0xc
18. UL 2w U+/240 (350/550) (0) at 0xfffa0000 [32], versions 0x5ba, 0x0, 0x4
19. Memory (1) at 0xfffb1000 [49], versions 0x7e, 0x0, 0x9
CPU(s): 1 x PA8200 (PCX-U+) at 240.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
LED display at ffd0c000 registered
Wax at 0xffe00000 found.
Wax EISA Adapter found at 0xfc000000
EISA EEPROM at 0xffc88000
Enumerating EISA bus
EISA slot 1 a configured board was not detected ( expected ___FFFF)
Dino version 3.x (card mode) found at 0xf1008000
Dino: Failed to allocate memory region
POSIX conformance testing by UNIFIX
SMP: Bootstrap processor only.
SMP: Total 1 of 1 processors activated (478.41 BogoMIPS noticed).
Waiting on wait_init_idle (map =3D 0x0)
All processors have done init_idle
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch enabled, polling @ 0xf0140000.
Starting kswapd
VFS: Diskquotas version dquot_6.4.0 initialized
Journalled Block Device driver loaded
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_P=
CI enabled
ttyS00 at iomem 0xffd05800 (irq =3D 90) is a 16550A
ttyS01 at iomem 0xffe02800 (irq =3D 121) is a 16550A
PS/2 keyboard port at 0xffd08000 (irq 69) found, no device attached.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Found i82596 at 0xffd07000, IRQ 87
eth0: 82596 at 0xffd07000, 08 00 09 A3 38 14 IRQ 87.
82596.c $Revision: 1.29 $
SCSI subsystem driver Revision: 1.00
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 36
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 37
ncr53c8xx: 53c720 detected
ncr53c720-1: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3b-20010512
scsi1 : ncr53c8xx-3.4.3b-20010512
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP15
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP15
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
53c700: Version 2.7 By James.Bottomley@HansenPartnership.com
scsi2: 53c710 rev 2=20
scsi2 : LASI SCSI 53c700
scsi2: (2:0) Synchronous at offset 8, period 100ns
  Vendor: HP        Model: DVD-ROM 6x/32x    Rev: 1.08
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi2: (3:0) Synchronous at offset 8, period 100ns
  Vendor: HP        Model: C1537A            Rev: HP02
  Type:   Sequential-Access                  ANSI SCSI revision: 02
st: Version 20020205, bufsize 32768, wrt 30720, max init. bufs 4, s/g segs =
16
Attached scsi tape st0 at scsi2, channel 0, id 3, lun 0
Attached scsi disk sda at scsi0, channel 0, id 1, lun 0
Attached scsi disk sdb at scsi0, channel 0, id 2, lun 0
Attached scsi disk sdc at scsi0, channel 0, id 3, lun 0
Attached scsi disk sdd at scsi0, channel 0, id 4, lun 0
Attached scsi disk sde at scsi0, channel 0, id 5, lun 0
Attached scsi disk sdf at scsi0, channel 0, id 6, lun 0
Attached scsi disk sdg at scsi1, channel 0, id 1, lun 0
Attached scsi disk sdh at scsi1, channel 0, id 2, lun 0
Attached scsi disk sdi at scsi1, channel 0, id 3, lun 0
Attached scsi disk sdj at scsi1, channel 0, id 4, lun 0
Attached scsi disk sdk at scsi1, channel 0, id 5, lun 0
Attached scsi disk sdl at scsi1, channel 0, id 6, lun 0
ncr53c720-0-<1,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
ncr53c720-0-<2,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdb: 8388314 512-byte hdwr sectors (4295 MB)
 sdb: unknown partition table
ncr53c720-0-<3,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdc: 8388314 512-byte hdwr sectors (4295 MB)
 sdc: unknown partition table
ncr53c720-0-<4,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdd: 8388314 512-byte hdwr sectors (4295 MB)
 sdd: unknown partition table
ncr53c720-0-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sde: 8388314 512-byte hdwr sectors (4295 MB)
 sde: unknown partition table
ncr53c720-0-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdf: 8388314 512-byte hdwr sectors (4295 MB)
 sdf: unknown partition table
ncr53c720-1-<1,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdg: 8388314 512-byte hdwr sectors (4295 MB)
 sdg: unknown partition table
ncr53c720-1-<2,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdh: 8388314 512-byte hdwr sectors (4295 MB)
 sdh: unknown partition table
ncr53c720-1-<3,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdi: 8388314 512-byte hdwr sectors (4295 MB)
 sdi: unknown partition table
ncr53c720-1-<4,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdj: 8388314 512-byte hdwr sectors (4295 MB)
 sdj: unknown partition table
ncr53c720-1-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdk: 8388314 512-byte hdwr sectors (4295 MB)
 sdk: unknown partition table
ncr53c720-1-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdl: 8388314 512-byte hdwr sectors (4295 MB)
 sdl: unknown partition table
Attached scsi CD-ROM sr0 at scsi2, channel 0, id 2, lun 0
sr0: scsi3-mmc drive: 0x/0x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :   504.000 MB/sec
   8regs_prefetch:   443.600 MB/sec
   32regs    :   459.200 MB/sec
   32regs_prefetch:   432.400 MB/sec
raid5: using function: 8regs (504.000 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 1024 buckets, 48Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 216k freed
INIT: version 2.84 booting
Activating swap.
Adding Swap: 977140k swap-space (priority -1)
Checking root file system...
fsck 1.28 (31-Aug-2002)
/dev/sda3 was not cleanly unmounted, check forced.
/dev/sda3: |=3D=3D                                                      |  =
2.8%   /dev/sda3: |=3D=3D=3D                                               =
      /  5.6%   /dev/sda3: |=3D=3D=3D=3D=3D                                =
                   -  8.4%   /dev/sda3: |=3D=3D=3D=3D=3D=3D                =
                                  \ 11.2%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=
=3D=3D                                                | 14.0%   /dev/sda3: =
|=3D=3D=3D=3D=3D=3D=3D=3D=3D                                               =
/ 16.8%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                    =
                         - 19.6%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D                                           \ 22.4%   /dev/sda3:=
 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                               =
           | 25.2%   /dev/sda3:                                            =
                                    Inode 142595, i_blocks is 80, should be=
 56.  FIXED.
/dev/sda3: Inode 142873, i_blocks is 320, should be 296.  FIXED.
/dev/sda3: Inode 142775, i_blocks is 336, should be 312.  FIXED.
/dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D               =
                         / 28.0%   /dev/sda3:                              =
                                                  Inode 158469, i_blocks is=
 64, should be 8.  FIXED.
/dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D            =
                           - 30.8%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                                     \ 33.=
6%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D                                    | 36.4%   /dev/sda3: |=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                     =
             / 39.2%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                                - 42.0%   =
/dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D                               \ 44.8%   /dev/sda3: |=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D   =
                          | 47.6%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                  =
          / 50.4%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                          -=
 53.2%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                         \ 56.0%   /=
dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                       | 58.8%   /dev/s=
da3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                      / 61.6%   /dev/sda3:=
                                                                           =
     Inode 348490, i_blocks is 88, should be 48.  FIXED.
/dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                    - 64.4%   =
/dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                  \ 67.2=
%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D               =
  | 70.0%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D         =
        / 70.2%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D   =
              - 70.4%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D                \ 70.7%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D                | 70.9%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D                / 71.2%   /dev/sda3: |=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                - 71.5%   /dev/sda3: |=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                \ 71.8%   /dev/sd=
a3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                | 72.1% =
  /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D            =
   / 72.5%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
               - 72.8%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D               \ 73.1%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D               | 73.4%   /dev/sda3: |=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D               / 73.7%   /dev/sda3: |=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D              - 74.1%   =
/dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D            =
  \ 74.5%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
              | 74.8%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D              / 75.0%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D              - 75.2%   /dev/sda3: |=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D              \ 75.5%   /dev/sda3: |=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D              | 75.7%   /de=
v/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D            =
 / 75.9%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D             - 76.2%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D             \ 76.6%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D             | 77.0%   /dev/sda3: |=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D             / 77.2%   /dev=
/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D            =
 - 77.5%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D            \ 77.9%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D            | 78.1%   /dev/sda3: |=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D            / 78.4%   /dev/sda3: =
|=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D            - 7=
8.7%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D            \ 79.0%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D            | 79.2%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D           / 79.7%   /dev/sda3: |=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D           - 80=
.0%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D           \ 80.2%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D           | 80.6%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D           / 80.8%   /dev/sda3: |=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D           - 81.0%=
   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D          \ 81.3%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D          | 81.6%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D          / 81.8%   /dev/sda3:=
 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D         =
 - 82.1%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D          \ 82.3%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D          | 82.5%   /dev/sda3: |=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D          / 82.8%   /=
dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
          - 83.0%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D         \ 83.3%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D         | 83.4%   /dev/sda=
3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D   =
      / 83.6%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D         - 83.9%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D         \ 84.2%   /dev/sda3: =
|=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D      =
   | 84.4%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D         / 84.6%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D        - 84.9%   /dev/sda3: |=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D      =
  \ 85.2%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D        | 85.4%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D        / 85.9%   /dev/sda3: |=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D        -=
 86.1%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D        \ 86.3%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D        | 86.6%   /dev/sda3: |=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D       / =
86.8%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D       - 87.0%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D       \ 87.2%   /dev/sda3: |=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D   =
    | 87.6%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D       / 87.8%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D       - 88.0%   /dev/sd=
a3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D       \ 88.2%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D      | 89.3%   /dev/sda3: |=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D      / 90.0=
%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D    - 92.0%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D    \ 92.7%   /dev=
/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D   | 93.9%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D   / 95.0%   /dev/sda=
3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D   - 95.1%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D  \ 96.0%   /dev/sda3=
: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D  | 96.8%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D / 98.1%   /dev/sda3:=
 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D- 99.6%   /dev/sda3: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| 100.0%    =
                                                                           =
   /dev/sda3: 30103/396000 files (0.8% non-contiguous), 160550/791616 blocks
System time was Thu Sep 12 08:42:44 UTC 2002.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Thu Sep 12 08:42:53 UTC 2002.
Calculating module dependencies... done.
Loading modules:=20
Starting RAID devices:  [events: 00000013]
 [events: 00000013]
 [events: 00000013]
 [events: 00000013]
 [events: 00000013]
 [events: 00000013]
md: autorun ...
md: considering sdg ...
md:  adding sdg ...
md:  adding sdf ...
md:  adding sde ...
md:  adding sdd ...
md:  adding sdc ...
md:  adding sdb ...
md: created md0
md: bind<sdb,1>
md: bind<sdc,2>
md: bind<sdd,3>
md: bind<sde,4>
md: bind<sdf,5>
md: bind<sdg,6>
md: running: <sdg><sdf><sde><sdd><sdc><sdb>
md: sdg's event counter: 00000013
md: sdf's event counter: 00000013
md: sde's event counter: 00000013
md: sdd's event counter: 00000013
md: sdc's event counter: 00000013
md: sdb's event counter: 00000013
md: md0: raid array is not clean -- starting background reconstruction
md0: max total readahead window set to 992k
md0: 4 data-disks, max readahead per data-disk: 248k
raid5: spare disk sdg
raid5: device sdf operational as raid disk 4
raid5: device sde operational as raid disk 3
raid5: device sdd operational as raid disk 2
raid5: device sdc operational as raid disk 1
raid5: device sdb operational as raid disk 0
raid5: allocated 5436kB for md0
raid5: raid level 5 set md0 active with 5 out of 5 devices, algorithm 2
raid5: raid set md0 not clean; reconstructing parity
RAID5 conf printout:
 --- rd:5 wd:5 fd:0
 disk 0, s:0, o:1, n:0 rd:0 us:1 dev:sdb
 disk 1, s:0, o:1, n:1 rd:1 us:1 dev:sdc
 disk 2, s:0, o:1, n:2 rd:2 us:1 dev:sdd
 disk 3, s:0, o:1, n:3 rd:3 us:1 dev:sde
 disk 4, s:0, o:1, n:4 rd:4 us:1 dev:sdf
RAID5 conf printout:
 --- rd:5 wd:5 fd:0
 disk 0, s:0, o:1, n:0 rd:0 us:1 dev:sdb
 disk 1, s:0, o:1, n:1 rd:1 us:1 dev:sdc
 disk 2, s:0, o:1, n:2 rd:2 us:1 dev:sdd
 disk 3, s:0, o:1, n:3 rd:3 us:1 dev:sde
 disk 4, s:0, o:1, n:4 rd:4 us:1 dev:sdf
md: updating md0 RAID superblock on device
md: sdg [events: 00000014]<6>(write) sdg's sb offset: 4194048
md: syncing RAID array md0
md: minimum _guaranteed_ reconstruction speed: 100 KB/sec/disc.
md: using maximum available idle IO bandwith (but not more than 100000 KB/s=
ec) for reconstruction.
md: using 124k window, over a total of 4194048 blocks.
md: sdf [events: 00000014]<6>(write) sdf's sb offset: 4194048
md: sde [events: 00000014]<6>(write) sde's sb offset: 4194048
md: sdd [events: 00000014]<6>(write) sdd's sb offset: 4194048
md: sdc [events: 00000014]<6>(write) sdc's sb offset: 4194048
md: sdb [events: 00000014]<6>(write) sdb's sb offset: 4194048
md: ... autorun DONE.
/dev/md0 done.
Checking all file systems...
fsck 1.28 (31-Aug-2002)
/dev/sda4 was not cleanly unmounted, check forced.
/dev/sda4: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                                 =
             | 17.5%   /dev/sda4: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D                                    / 35.0%   /dev/sda=
4: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D                           - 52.5%   /dev/sda4: |=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D                 \ 70.0%   /dev/sda4: |=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
      | 90.0%   /dev/sda4: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D    / 92.0%   /dev/sda4: |=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D   =
- 95.0%   /dev/sda4: |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D  \ 95.6%   /dev/sda4: |=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D| 100.0%                                                                =
                  /dev/sda4: 25/8256 files (8.0% non-contiguous), 18237/327=
69 blocks
Setting kernel variables.
Mounting local filesystems...
/dev/sda4 on /boot type ext2 (rw)
Running 0dns-down to make sure resolv.conf is ok...done.
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: eth0: link ok.
done.

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Thu Sep 12 11:43:41 EEST 2002

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting OpenLDAP: slapd.
Starting internet superserver: inetd.
Starting mail transport agent: Postfix
=2E
Starting OpenBSD Secure Shell server: sshd.
Starting teapop: teapop.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.

Debian GNU/Linux testing/unstable elli ttyS0

elli login: root
Password:=20
Last login: Thu Sep 12 08:24:40 2002 on ttyS0
Linux elli 2.4.19-pa14 #1 SMP Wed Sep 11 12:54:30 EEST 2002 parisc unknown =
unknown GNU/Linux

Most of the programs included with the Debian GNU/Linux system are
freely redistributable; the exact distribution terms for each program
are described in the individual files in /usr/share/doc/*/copyright

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
elli:~# ap-=08 =08t-get update
0% [Working]            0% [Connecting to ftp.fi.debian.org (130.230.54.99)=
] [Connecting to non-us.debia                                              =
                                  Hit http://security.debian.org stable/upd=
ates/main Packages
                                                                           =
     Hit http://security.debian.org stable/updates/main Release
                                                                           =
     Hit http://security.debian.org stable/updates/contrib Packages
                                                                           =
     Hit http://security.debian.org stable/updates/contrib Release
                                                                           =
     Hit http://security.debian.org stable/updates/non-free Packages
                                                                           =
     Hit http://security.debian.org stable/updates/non-free Release
                                                                           =
     19% [Waiting for file] [Connecting to non-us.debian.org]              =
                                          Get:1 http://ftp.fi.debian.org un=
stable/main Packages [1945kB]
                                                        0% [1 Packages 2541=
/1945kB 0%] [Connecting to non-us.debian.org]                              =
                                  1% [1 Packages 28605/1945kB 1%] [Waiting =
for file]                                                  Get:2 http://non=
-us.debian.org unstable/non-US/main Packages [34.2kB]
                                                  1% [1 Packages 28605/1945=
kB 1%] [2 Packages 1106/34.2kB 3%]                                         =
                  Get:3 http://non-us.debian.org unstable/non-US/main Relea=
se [89B]
                                                           Hit http://non-u=
s.debian.org unstable/non-US/contrib Packages
                                                           Get:4 http://non=
-us.debian.org unstable/non-US/contrib Release [92B]
                                                           Hit http://non-u=
s.debian.org unstable/non-US/non-free Packages
                                                           Get:5 http://non=
-us.debian.org unstable/non-US/non-free Release [93B]
                                                           Hit http://non-u=
s.debian.org stable/non-US/main Sources
                                                           Hit http://non-u=
s.debian.org stable/non-US/main Release
                                                           10% [1 Packages =
177749/1945kB 9%]                                 Hit http://non-us.debian.=
org stable/non-US/contrib Sources
                                 Hit http://non-us.debian.org stable/non-US=
/contrib Release
10% [1 Packages 177749/1945kB 9%]                                 11% [2 Pa=
ckages gzip 0] [1 Packages 192229/1945kB 9%] [Waiting for file]            =
                                                            Hit http://non-=
us.debian.org stable/non-US/non-free Sources
                                                                        Hit=
 http://non-us.debian.org stable/non-US/non-free Release
                                                                        12%=
 [2 Packages gzip 0] [1 Packages 205261/1945kB 10%]14% [2 Packages gzip 0] =
[1 Packages 258837/1945kB 13%]                                             =
         16% [1 Packages 296485/1945kB 15%]18% [1 Packages 337029/1945kB 17=
%]20% [1 Packages 376125/1945kB 19%]21% [1 Packages 393501/1945kB 20%]23% [=
1 Packages 434045/1945kB 22%]                                  26% [1 Packa=
ges 497757/1945kB 25%]                                  82.9kB/s 17s30% [1 =
Packages 561469/1945kB 28%]                                  82.9kB/s 16s32=
% [1 Packages 612149/1945kB 31%]                                  82.9kB/s =
16s34% [1 Packages 655589/1945kB 33%]                                  82.9=
kB/s 15s36% [1 Packages 694685/1945kB 35%]                                 =
 82.9kB/s 15s39% [1 Packages 754053/1945kB 38%]                            =
      82.9kB/s 14s42% [1 Packages 807629/1945kB 41%]                       =
           82.9kB/s 13s45% [1 Packages 872789/1945kB 44%]                  =
                82.9kB/s 12s49% [1 Packages 945189/1945kB 48%]             =
                     82.9kB/s 12s52% [1 Packages 1008901/1945kB 51%]       =
                          82.9kB/s 11s55% [1 Packages 1056685/1945kB 54%]  =
                               82.9kB/s 10s56% [1 Packages 1078405/1945kB 5=
5%]                                 82.9kB/s 10s58% [1 Packages 1123293/194=
5kB 57%]                                   104kB/s 7s60% [1 Packages 116383=
7/1945kB 59%]                                   104kB/s 7s62% [1 Packages 1=
200037/1945kB 61%]                                   104kB/s 7s64% [1 Packa=
ges 1236237/1945kB 63%]                                   104kB/s 6s67% [1 =
Packages 1295605/1945kB 66%]                                   104kB/s 6s69=
% [1 Packages 1346285/1945kB 69%]                                   104kB/s=
 5s72% [1 Packages 1394069/1945kB 71%]                                   10=
4kB/s 5s75% [1 Packages 1450541/1945kB 74%]                                =
   104kB/s 4s77% [1 Packages 1498325/1945kB 77%]                           =
        104kB/s 4s80% [1 Packages 1553349/1945kB 79%]                      =
             104kB/s 3s83% [1 Packages 1612717/1945kB 82%]                 =
                  104kB/s 3s86% [1 Packages 1670637/1945kB 85%]            =
                       104kB/s 2s88% [1 Packages 1719869/1945kB 88%]       =
                            104kB/s 2s91% [1 Packages 1769101/1945kB 90%]  =
                                99.4kB/s 1s95% [1 Packages 1853085/1945kB 9=
5%]                                  99.4kB/s 0s98% [1 Packages 1921141/194=
5kB 98%]                                  99.4kB/s 0s                      =
                                                          Get:6 http://ftp.=
fi.debian.org unstable/main Release [82B]
                                                                           =
     Hit http://ftp.fi.debian.org unstable/non-free Packages
99% [Waiting for file]                                               99.4kB=
/s 0s                                                                      =
          Get:7 http://ftp.fi.debian.org unstable/non-free Release [86B]
                                                                           =
     Get:8 http://ftp.fi.debian.org unstable/contrib Packages [47.8kB]
97% [1 Packages gzip 0] [8 Packages 5204/47.8kB 10%]                 99.4kB=
/s 0s                                                                      =
          Get:9 http://ftp.fi.debian.org unstable/contrib Release [85B]
                                                                           =
     Hit http://ftp.fi.debian.org stable/main Sources
                                                                           =
     Hit http://ftp.fi.debian.org stable/main Release
                                                                           =
     Hit http://ftp.fi.debian.org stable/non-free Sources
                                                                           =
     Hit http://ftp.fi.debian.org stable/non-free Release
                                                                           =
     Hit http://ftp.fi.debian.org stable/contrib Sources
                                                                           =
     Hit http://ftp.fi.debian.org stable/contrib Release
99% [1 Packages gzip 323584]                                         99.4kB=
/s 0s99% [1 Packages gzip 1437696]                                        9=
9.4kB/s 0s99% [1 Packages gzip 2555904]                                    =
    99.4kB/s 0s99% [1 Packages gzip 3665920]                               =
         99.4kB/s 0s99% [1 Packages gzip 4780032]                          =
              99.4kB/s 0s99% [1 Packages gzip 5861376]                     =
                   99.4kB/s 0s99% [1 Packages gzip 6918144]                =
                        99.4kB/s 0s99% [Working]                           =
                             99.4kB/s 0s99% [8 Packages gzip 0]            =
                                  99.4kB/s 0s100% [Working]                =
                                       99.4kB/s 0s                         =
                                                       Fetched 2027kB in 24=
s (83.5kB/s)
Reading Package Lists... 0%apt-get(289): unaligned access to 0x403cf08c at =
ip=3D0x4005e4f7
Reading Package=20

apt-get(289): unaligned access to 0x403cf08c at ip=3D0x4005e4f7

High Priority Machine Check (HPMC): Code=3D1 regs=3D102ea080 (Addr=3D000000=
00)
=FF


Firmware Version  38.39

Duplex Console IO Dependent Code (IODC) revision 0

---------------------------------------------------------------------------=
---
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
---------------------------------------------------------------------------=
---

  Processor   Speed            State           Coprocessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------
      0       240 MHz   Active                 Functional            2 MB
      1       240 MHz   Stopped:Deconfigured   Unknown               2 MB

  Central Bus Speed (in MHz)  :        120=20

  Model: R390/2

  Available memory (bytes)    : 1073733632=20
  Good memory required (bytes):   86876160=20

  Primary boot path:    8/4.1   (dec)  =20
  Alternate boot path:  8/4.6   (dec)  =20
  Console path:         8/16/4.0   (dec)  =20
  Keyboard path:        8/16/7.0   (dec)  =20

CPU 0
WARNING:  Memory has been initialized, but not tested as a result of
          FASTBOOT being enabled.  To test memory, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


Processor is starting autoboot process.

To discontinue, press any key within 10 seconds.

=07Boot terminated.


------- Main Menu ---------------------------------------------------------=
----

        Command                         Description
        -------                         -----------
        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration [<command>]       Access Configuration menu/commands
        INformation [<command>]         Access Information menu/commands
        SERvice [<command>]             Access Service menu/commands

        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command > ser pim

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp =3D   Thu Sep  12 08:48:47 GMT 2002    (20:02:09:12:08:48:47)

HPMC Chassis Codes =3D 0xcbf0  0x5002  0x7d03  0x5408  0x5508  0xcbfb =20
                    =20

General Registers 0 - 31
00-03  0000000000000000  0000000000044a20  0000000040098df3  00000000403cf0=
8c
04-07  0000000000000038  0000000040111868  00000000faf00b88  00000000faf00d=
d8
08-11  0000000000050b00  00000000faf00de0  00000000faf00dd8  00000000faf00d=
e8
12-15  0000000000050b00  00000000faf00ab0  00000000faf00948  00000000faf00a=
8c
16-19  00000000faf008c0  000000000000000f  000000000009e800  00000000401118=
68
20-23  00000000403cf098  0000000000000007  00000000403cf08c  00000000403cf0=
44
24-27  00000000faf00dd8  0000000000000038  0000000000051990  00000000000402=
20
28-31  0000000000051990  0000000000000007  00000000faf01400  00000000000282=
a3

<Press any key to continue (q to quit)>=20

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  000000000000022a  0000000000000000  00000000000000c0  00000000000000=
08
12-15  0000000000000000  0000000000000000  0000000000108000  00000000fd0000=
00
16-19  00000021d83d8324  0000000000000115  000000004005e4fb  0000000043ffff=
80
20-23  00000000102400db  400000004912452c  0000000000000000  00000000000000=
00
24-27  0000000000305000  0000000036d23000  00000000aaaaaaaa  00000000000003=
d0
28-31  00000000aaaaaaaa  0000000011111111  0000000046d24000  00000000103a00=
00

Space Registers 0 - 7
00-03  00000000          00000115          00000000          00000115
04-07  00000115          00000115          00000115          00000115

<Press any key to continue (q to quit)>=20

IIA Space                    =3D 0x0000000000000115
IIA Offset                   =3D 0x000000004005e4ff
Check Type                   =3D 0x20000000
CPU State                    =3D 0x9e000004
Cache Check                  =3D 0x00000000
TLB Check                    =3D 0x00000000
Bus Check                    =3D 0x00105004
Assists Check                =3D 0x00000000
Assist State                 =3D 0x00000000
Path Info                    =3D 0x00000000
System Responder Address     =3D 0x0000000000000000
System Requestor Address     =3D 0xfffffffffffa0000
Check Summary                =3D 0x80000000102846c0
Available Memory             =3D 0x0000000040000000
CPU Diagnose Register 2      =3D 0x0501000004000004
CPU Status Register 0        =3D 0x1420820000000000
CPU Status Register 1        =3D 0x8000000000000000
SADD LOG                     =3D 0x3e11b4fff1b4a0b9
Read Short LOG               =3D 0xc10200ffffd05802

<Press any key to continue (q to quit)>=20

-----------------  Processor 0 LPMC Information ------------------

Check Type                   =3D 0x00000000
IC Parity Info               =3D 0x00000000
Cache Check                  =3D 0x00000000
TLB Check                    =3D 0x00000000
Bus Check                    =3D 0x00000000
Assists Check                =3D 0x00000000
Assist State                 =3D 0x00000000
Path Info                    =3D 0x00000000
System Responder Address     =3D 0x0000000000000000
System Requestor Address     =3D 0x0000000000000000

-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
28-31  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00

<Press any key to continue (q to quit)>=20

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
28-31  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space                    =3D 0x0000000000000000
IIA Offset                   =3D 0x0000000000000000
CPU State                    =3D 0x00000000

<Press any key to continue (q to quit)>=20

-----------------  Processor 1 HPMC Information ------------------

   No valid timestamp

HPMC Chassis Codes =3D No chassis codes logged

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
28-31  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00

<Press any key to continue (q to quit)>=20

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
28-31  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

<Press any key to continue (q to quit)>=20

IIA Space                    =3D 0x0000000000000000
IIA Offset                   =3D 0x0000000000000000
Check Type                   =3D 0x00000000
CPU State                    =3D 0x00000000
Cache Check                  =3D 0x00000000
TLB Check                    =3D 0x00000000
Bus Check                    =3D 0x00000000
Assists Check                =3D 0x00000000
Assist State                 =3D 0x00000000
Path Info                    =3D 0x00000000
System Responder Address     =3D 0x0000000000000000
System Requestor Address     =3D 0x0000000000000000
Check Summary                =3D 0x0000000000000000
Available Memory             =3D 0x0000000000000000
CPU Diagnose Register 2      =3D 0x0000000000000000
CPU Status Register 0        =3D 0x0000000000000000
CPU Status Register 1        =3D 0x0000000000000000
SADD LOG                     =3D 0x0000000000000000
Read Short LOG               =3D 0x0000000000000000

<Press any key to continue (q to quit)>=20

-----------------  Processor 1 LPMC Information ------------------

Check Type                   =3D 0x00000000
IC Parity Info               =3D 0x00000000
Cache Check                  =3D 0x00000000
TLB Check                    =3D 0x00000000
Bus Check                    =3D 0x00000000
Assists Check                =3D 0x00000000
Assist State                 =3D 0x00000000
Path Info                    =3D 0x00000000
System Responder Address     =3D 0x0000000000000000
System Requestor Address     =3D 0x0000000000000000

-----------------  Processor 1 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
28-31  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00

<Press any key to continue (q to quit)>=20

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
04-07  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
08-11  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
12-15  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
16-19  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
20-23  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
24-27  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00
28-31  0000000000000000  0000000000000000  0000000000000000  00000000000000=
00

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space                    =3D 0x0000000000000000
IIA Offset                   =3D 0x0000000000000000
CPU State                    =3D 0x00000000

<Press any key to continue (q to quit)>=20

Memory Error Log Information:

Timestamp =3D   Thu Sep  12 08:48:47 GMT 2002    (20:02:09:12:08:48:47)

                    Trans  Addr                   Central Bus
Status  Requestor     id    par  CP  AD  DV       Address/Data
------  ----------  -----  ----  --  --  --  ---------------------

 0x14   0xfffa0000   0x00   0x0   0   0   0  0x00000000 0x00000000

                                                    Memory
                                  ECC Reg     Address      Data
                                 ----------  ---------- ----------

                                 0x00000000  0x00000000 0x00000000
                                                        0x00000000
                                                        0x00000000
                                                        0x00000000
                                                        0x00000000

<Press any key to continue (q to quit)>=20

I/O Module Error Log Information:

Timestamp =3D   Thu Sep  12 08:48:49 GMT 2002    (20:02:09:12:08:48:49)

Bus    HPA       Module Type      Path  Slt Md Sev  Estat Requestor  Respon=
der
--- ---------- ---------------- -------- -- -- ---- ----- ---------- ------=
----
 0  0xfff88000 I/O Adapter      8         2  0  he   0x0d 0x00000000 0x0000=
0000
 0  0xfff8a000 I/O Adapter      10        2  2  he   0x0d 0x00000000 0x0000=
0000

<Press any key to continue (q to quit)>=20

IO Bus Converter Log
--------------------

IOA0 HPA            =3D 0xfff88000
IOA0 UBC_IO_CONTROL =3D 0x00020080
GSC1 HPA            =3D 0xf1000001
IOA0 IO_IO_LO       =3D 0xf1000000
IOA0 IO_IO_HI       =3D 0xf1800000
IOA0 IO_IO_LO_HV    =3D 0xfc000000
IOA0 IO_IO_HI_HV    =3D 0xfff80000

IOA1 HPA            =3D 0xfff8a000
IOA1 UBC_IO_CONTROL =3D 0x00020080
GSC2 HPA            =3D 0xf1800001
IOA1 IO_IO_LO       =3D 0xf1800000
IOA1 IO_IO_HI       =3D 0xf2000000
IOA1 IO_IO_LO_HV    =3D 0x00000000
IOA1 IO_IO_HI_HV    =3D 0x00000000

  NIO bus converter register data is not available.


Main Menu: Enter command >=20
Main Menu: Enter command >=20
--LZvS9be/3tNcYl/X--


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Arto Jantunen wrote:
> > Also, are there any HP hardware gurus out there that can explain these odd 
> > io numbers?  Could they be relevant?

Yes, I need to find the right docs to decode the meaning though.
I've not been motivated to chase this lately.

A few more observsation about HPMC problems:
o A500-55 and A500-44 don't have this problem.
o SMP kernel on 1 CPU and UP kernel on the same box *should* do exactly
  the same things besides aquire/release spinlocks. This suggests someone
  fixed something in the non-SMP code path and missed the SMP part.

> I did this, but the stuff I got from ser pim is almost all zeroes.
> I'm attaching it anyway, but I don't think it is correct. I rebooted
> by shutting it down from the power switch, is there a "softer" way
> to do it (I only have a serial console)?

HP9000/800 series machines should all support <ctl>-B
to get to service processor prompt.
"he" for help.
"rs" to reset the machine.
"tc" to capture current state of the machine for debugging "hung" machines.
(TC data is available with "ser pim" output")

hth,
grant


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> HP9000/800 series machines should all support <ctl>-B
> to get to service processor prompt.
> "he" for help.
> "rs" to reset the machine.
> "tc" to capture current state of the machine for debugging "hung"
> machines.
> (TC data is available with "ser pim" output")

The only way you can do a <ctrl>-B on a D/R class is *if* it has a
A3262-69311 card which is the ups/modem/remote access port.  It has a
switch on the back that has to be in the service mode for the <cntl>-B
to work.  Most of the higher end D/R's have the card and for the lower
models it was and optional part.  So if you can't do a <cntl>-B, check
the back of your machine and look for a card that says access port on
it with a little black 2-way switch on it with 2 positions (normal and
service).  All the service position does is allow remote access and
enable the <cntl>-B service processor functions. 

 
>Timestamp =   Thu Sep  12 08:48:47 GMT 2002    (20:02:09:12:08:48:47)
>
>HPMC Chassis Codes = 0xcbf0  0x5002  0x7d03  0x5408  0x5508  0xcbfb 

 
CBF0-HPMC occurred-starts normal HPMC process
5002-Path error
7D03-Memory MSI read error-says maybe due to a software error
5508-Broad error-part of the hpmc handler
5408-Broad error-part of the hpmc handler
CBFB-Branch to OS HPMC-Normal HPMC process

I'm still trying to locate my I/O troubleshooter.  I'll get back to you
later on that.  I would say that the MSI read error is generated by the
apt-get and is causing the problem.  That's only a quick guess on my
part since I've got to run and replace a system card in an R Class
right now.

derek

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Subject: [parisc-linux] [PATCH] 2.4.19 ppp_generic.c warning fixed
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Paul,
Wearing my other hat (parisc-linux), I've a fix for "used before
initialized" warning in ppp_generic.c.

The ret value might want to be something other than zero in
the "if (skb) break;" condition.

thanks,
grant

Index: drivers/net/ppp_generic.c
===================================================================
RCS file: /var/cvs/linux/drivers/net/ppp_generic.c,v
retrieving revision 1.11
diff -u -p -r1.11 ppp_generic.c
--- drivers/net/ppp_generic.c   4 Aug 2002 22:58:31 -0000       1.11
+++ drivers/net/ppp_generic.c   13 Sep 2002 05:57:15 -0000
@@ -387,9 +387,9 @@ static ssize_t ppp_read(struct file *fil
        for (;;) {
                set_current_state(TASK_INTERRUPTIBLE);
                skb = skb_dequeue(&pf->rq);
+               ret = 0;
                if (skb)
                        break;
-               ret = 0;
                if (pf->dead)
                        break;
                ret = -EAGAIN;


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Subject: [parisc-linux] Re: OT HP-UX Formatting Scsi disks
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> try zeroing out the first few blocks:
> 
> dd if=/dev/zero of=/dev/offending_scsi_drive bs=512 count=4

I've decided to load HP-UX on the E55 I've been playing with since
Debian doesn't work very well on it right now.  I'm sending this OT
because I need to know where dd lives on an HP-UX 11.11 box.  I'm in a
limited shell and need an absolute path to dd to get it to accomplish
the above.  It's so limited it won't even give me the ls command.  Any
of you HP-UX guys out there?  Since I'm at home I don't have access to
an HP-UX box at work.  Thanks.

derek

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              <tr>=20                <td width=3D=2296=22><img src=3D=22http://imgdef.easyadpost.com/addef/em_06.gif=22 height=3D=226=22 border=3D=220=22></td>
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              </tr>
            </table>
          </td>
        </tr>
        <tr>
          <td><a href=3D=22http://www.easyadpost.com=22 target=3D=22_blank=22><img src=3D=22http://imgdef.easyadpost.com/addef/em_09.gif=22 width=3D=22446=22 height=3D=2289=22 border=3D=220=22></a></td>
        </tr>
      </table>
     =20    </td>
  </tr>
  <tr>
    <td bgcolor=3D=22=23FFFFFF=22>&nbsp;</td>
  </tr>
  <tr>=20    <td bgcolor=3D=22=23FFFFFF=22>
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                    </font> </p>
                </td>
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<p>&nbsp;</p>
                </td>
              </tr>
            </table>
          </td>
        </tr>
      </table>
    <p>&nbsp;</p></td>
  </tr>
</table>
</body>
</html>

--=_NextPart_2rfkindysadvnqw3nerasdf--


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Xref: news.gmane.org gmane.linux.ports.parisc:16101

Thanks to Derek Engelhaupt getting me some information, I now feel fairly
certain that Ryan Bradetich's Mux driver will support the D and R class
remote serial card.  So everyone who unplugged their remote serial card
to get their D/R class working should be able to plug it back in and
boot a recent kernel using `console=ttyB0' to get output on their remote
serial port.  Feedback from anyone who can test this feature appreciated.

I'm now scheming to see if we can reclaim Lasi's serial port, even
though firmware's disabled it.  Because you can never have too many
serial ports, right?  :-)

-- 
Revolutions do not require corporate support.


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From: Robin Kearney <robin@uk.another.com>
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Hi, we have a spare HP9000 machine which is going to be thrown out.

Would anybody in the linux pa-risc community like it to help their 
porting efforts?

Not sure of the spec, but can find out if needed.

We are in north london, would be nice if you could collect if you want 
it.

Price? all we ask is a credit on a site if it proves useful.

robin.


--
another.com
sysadmin
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On Fri, Sep 13, 2002 at 04:09:20PM +0100, Robin Kearney wrote:
> Hi, we have a spare HP9000 machine which is going to be thrown out.

It'd help if you could specify the model -- some machines are more, er,
tricky than others ;-)  We're looking for something like "D220" or "F80"
as a description.

-- 
Revolutions do not require corporate support.


From - Thu Nov 08 21:24:33 2018
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On Friday, September 13, 2002, at 04:16  pm, Matthew Wilcox wrote:

> On Fri, Sep 13, 2002 at 04:09:20PM +0100, Robin Kearney wrote:
>> Hi, we have a spare HP9000 machine which is going to be thrown out.
>
> It'd help if you could specify the model -- some machines are more, er,
> tricky than others ;-)  We're looking for something like "D220" or 
> "F80"
> as a description.

Ok, some details from looking at the actual HW:

Only model number I can find is 'L1000 440Mhz'
4 disk slots (all sca)
1 5 1/4" slot
(used to contain a scsi dvd drive, but I guess another sysadmin thought 
it would serve him better)
has space for 3 psu's (1 currently in residence)
12 PCI slots.
Can have upto 4cpu's but currently has 1

There are no disks but I'm sure I can find a 9Gig so its at least 
useful.

HTH

r.


--
another.com
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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: [parisc-linux] Making SYM2 default SYM-SCSI driver instead of SYM1
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Xref: news.gmane.org gmane.linux.ports.parisc:16105

Hi fellows !

Paul Bame has noticed a problem that seems to occur on B2600 with SYM1 
driver, causing the box to slow down everything and increasing the 
loadavg, while top reports 99% idle.

When this happens, one can hear HD making strange noise: two grouped 
"ticks" every 2 seconds or so.

I have experienced this behavior by myself, and it seems that using SYM2 
driver solves this problem.

Now I'm asking you to know if anybody has an objection against making 
SYM2 the default driver in debian-configs instead of old SYM1.

Thanks,


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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grundler@debian:~$ /usr/X11R6/bin/xlock -mode morph3d
Access control list restored.
xlock: caught signal 10 while running morph3d mode (uid 1000).

I haven't explicitly tested all modes, but this is the only
failure I've seen.

grundler@debian:~$ fgrep 10 /usr/include/asm/signal.h
#define SIGBUS          10
#define SA_SIGINFO      0x00000010
#define _SA_SIGGFAULT   0x00000100 /* HPUX */
grundler@debian:~$

SIGBUS implies a misaligned address access....and dmesg output confirms
that theory:

xlock(16254): unaligned access to 0x4071402c at ip=0x400ea63f
Not-handled unaligned insn 0x2fe81205
Unaligned handler failed, ret = -1
xlock (pid 16254): Unaligned data reference (code 28)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 00267c90 400d2943 4013c558
r04-07  00267a60 001dcec8 001d9ec8 002486c8
r08-11  001d9ec8 001d9ec8 002486c8 001d9ec8
r12-15  001d9ec8 00000001 002596c8 001d9ec8
r16-19  002486c8 00000000 002486c8 4013c558
r20-23  00000034 000000af 400ea5e8 4071403c
r24-27  40714024 40714028 00267c90 001d9ec8
r28-31  0026b160 40753f48 faf00b80 40714028
sr0-3   00000000 00000050 00000000 00000050
sr4-7   00000050 00000050 00000050 00000050

IASQ: 00000050 00000050 IAOQ: 400ea63f 400ea643
IIR: 2fe81205    ISR: 00000050  IOR: 4071402c


grant


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> xlock(16254): unaligned access to 0x4071402c at ip=0x400ea63f
> Not-handled unaligned insn 0x2fe81205
> Unaligned handler failed, ret = -1
> xlock (pid 16254): Unaligned data reference (code 28)

that insn is fstd fr5,4(sr0,r31) ... and indeed the unaligned handler
doesn't do anything with the floating point instructions.

we probably should try to hunt down the broken code in xlock (or the lib
that contains the insn) and fix it...

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Robin Kearney wrote:
> Only model number I can find is 'L1000 440Mhz'
> 4 disk slots (all sca)
> 1 5 1/4" slot
> (used to contain a scsi dvd drive, but I guess another sysadmin thought 
> it would serve him better)
> has space for 3 psu's (1 currently in residence)
> 12 PCI slots.
> Can have upto 4cpu's but currently has 1

This is the "big brother" to an A500. Same chipset but more IO slots.
parisc-linux should run on this box just fine.

> There are no disks but I'm sure I can find a 9Gig so its at least 
> useful.

Don't forget the disk carriers - those are *much* harder to find
than the disks.

grant


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Subject: Re: [parisc-linux] Making SYM2 default SYM-SCSI driver instead of SYM1
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Thibaut VARENE wrote:
> Now I'm asking you to know if anybody has an objection against making 
> SYM2 the default driver in debian-configs instead of old SYM1.

I don't. All the boxes I care about have 53c8xx chips in them.

A slightly safer approach is to make sym2 the default for PA2.0 systems
and the old sym the default for PA1.1 systems. But GSC/HSC c720 cards
don't fit that model since they go into systems with either sub-arch.
I don't see a way around users "tuning" based on actual HW configuration.

grant


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Hello,

I hope the status will change soon. I also have an E55
and I use it under HP-UX. But I want to switch as fast
as possible to linux.

I can use the E55 now as diskless server (!), SCSI is
not working yet. But as I mentioned, I hope this will
change very soon !!

Christoph


Derek Engelhaupt wrote:
> 
> > try zeroing out the first few blocks:
> >
> > dd if=/dev/zero of=/dev/offending_scsi_drive bs=512 count=4
> 
> I've decided to load HP-UX on the E55 I've been playing with since
> Debian doesn't work very well on it right now.  I'm sending this OT
> because I need to know where dd lives on an HP-UX 11.11 box.  I'm in a
> limited shell and need an absolute path to dd to get it to accomplish
> the above.  It's so limited it won't even give me the ls command.  Any
> of you HP-UX guys out there?  Since I'm at home I don't have access to
> an HP-UX box at work.  Thanks.
> 
> derek
> 
> __________________________________________________
> Do you Yahoo!?
> Yahoo! News - Today's headlines
> http://news.yahoo.com
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
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company:	christoph.plattner@alcatel.at


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Hi Thibaut,

Thibaut VARENE wrote:
> Hi fellows !
> 
> Paul Bame has noticed a problem that seems to occur on B2600 with SYM1 
> driver, causing the box to slow down everything and increasing the 
> loadavg, while top reports 99% idle.
> 
> When this happens, one can hear HD making strange noise: two grouped 
> "ticks" every 2 seconds or so.
> 
> I have experienced this behavior by myself, and it seems that using SYM2 
> driver solves this problem.

At a moment it solved also this problem of disk on my b2k. So for 
severall month now, I use only SYM2 on this b2k.

More over as on a b180 I notice that SYM2 driver could also be used 
also, I test it with same success.

(sorry I could not any more test on 712)

Good idea,
	Joel




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Paul Bame wrote:
 > As jda mentioned, the ex_table stuff is a bit complex.  You can find out
 > how the x86 exception table works in linux/Documentation/exception.txt
 > but parisc is a little different.
 > I leave it to you to locate the relevent
 > exception handler somewhere in arch/parisc/kernel/  A thorough 
understanding
 > of the exception handler method is necessary to understand and/or change
 > the code you are working with.
 >
is it do_page_fault (in fault.c) which use  search_exception_table(...)?

Thanks,
	Joel


PS: Do you have an idea how may I figure out in which registers are
stored the two parts of a 64bits int (always contigus) or would it be
better to work with x address (in put_user_asm("stw",x,ptr)).

I also presume that there is noe way for gas to simulate (some kind of
macro ) std and ldd from pa2 onto pa1. It would be too easy :)?





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> PS: Do you have an idea how may I figure out in which registers are
> stored the two parts of a 64bits int (always contigus) or would it be
> better to work with x address (in put_user_asm("stw",x,ptr)).

There is no hard and fast rule.  The treatment used by GCC is defined
in HARD_REGNO_MODE_OK in pa32-regs.h.  Currently we used consecutive
pairs of registers.  This may be subject to change though.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hallo Ryan !

Congratulation, your MUX driver on port 0 is really
working on my machine !!

What do you miss to support the other lines ?
Have you already knowledge of the data structure ?
Can I help you here in the code ?

Another point: you mentioned the skeleton of the
SCSI SPIFI driver. Where can I find that ? I only
found a NetBSD code, which I will use as functional
template, but I do not know, if this would be enough.
Can you give me a hint in this point ?

Christoph


-- 
-------------------------------------------------------
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company:	christoph.plattner@alcatel.at


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Hallo Ryan,

have you already got docu on the serial MUX board ?
Or where do you have the information about `#define's
from. Is the MUX_LINE_OFFSET (= 0x80) the key point.

I have tried to access the board at
	membase + MUX_OFFSET + line * MUX_LINE_OFFSET,
but the first write access to /dev/ttyB1 results in
a hang up (completely, even no network interrupts
were processed !).

Operates the MUX driver in polling mode ? Not in IRQ mode ?

Christoph

-- 
-------------------------------------------------------
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company:	christoph.plattner@alcatel.at


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Hello Christoph,

No, I still have not found any documentation on the
Serial Mux driver.  The work I did was referenced
off the HP-UX mux driver.

>From what I can see, the 0x80 (MUX_LINE_OFFSET)
is the offset between the mux registers for each
line.  I have not tried to hook up multiple lines
yet but I believe the skeleton is there.  Did the
box HPMC?  Can you get a TOC and read the IAOQ to
see what caused the crash?  Maybe we need to add
additional locking to the driver, etc.

The mux only operates in a polling mode.  The HP-UX
driver also polls (I don't see anywhere in the driver
where it could create/cause/catch an interrupt).

I will be out this weekend, but back early next week.
Let me know what you find, and I'll take a poke and
see if I can help!

Thanks,

- Ryan


On Fri, 2002-09-13 at 16:25, Christoph Plattner wrote:
> Hallo Ryan,
> 
> have you already got docu on the serial MUX board ?
> Or where do you have the information about `#define's
> from. Is the MUX_LINE_OFFSET (= 0x80) the key point.
> 
> I have tried to access the board at
> 	membase + MUX_OFFSET + line * MUX_LINE_OFFSET,
> but the first write access to /dev/ttyB1 results in
> a hang up (completely, even no network interrupts
> were processed !).
> 
> Operates the MUX driver in polling mode ? Not in IRQ mode ?
> 
> Christoph
> 
> -- 
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at
> 




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On Fri, 2002-09-13 at 15:59, Christoph Plattner wrote:
> Hallo Ryan !
> 
> Congratulation, your MUX driver on port 0 is really
> working on my machine !!

Glad to hear that!

> What do you miss to support the other lines ?

I am not sure, I've never tried to hook up additional
lines.  I do have an 8-port MDP somewhere, I'll look
for it here shortly, and see if I can hook it up.

> Have you already knowledge of the data structure ?

Just what I have added into the driver.  If there is 
something that we are obviously missing, I can go back
and reference the HP-UX mux driver and see what is
missing.

> Can I help you here in the code ?

Please! :)  I do not use multiple lines currently ...
I only use the line 0, so any testing, optimizing, etc
is greatly appreciated!

> Another point: you mentioned the skeleton of the
> SCSI SPIFI driver. Where can I find that ? I only
> found a NetBSD code, which I will use as functional
> template, but I do not know, if this would be enough.
> Can you give me a hint in this point ?

I have it on my local system.  It is _very_ ugly at this
point.  I have got enough to query information from the 
spifi chip, register an interrupt, etc... but currently
I can not get the spifi chip to actually generate an
interrupt.

I would be happy to send you a copy when I get back next
monday (unless you catch my in the next hour or so), but
I'm not ready to check it into CVS yeah until I get rid
of the some ugly hardcoded hacks, global variables, etc.
Right now the driver is really coded to gather info from
the ESIEE E35 that I have been testing on.  Once again,
I do not have any docs on the chipset, I am using both
the NetBSD and HP-UX drivers as reference. :(

The driver should be easy to modify for your specific E55,
but not sure if you are interested in that level of work,
messyness now.  I promise it will get much better :)

Thanks,

- Ryan


> Christoph
> 
> 
> -- 
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at
> 




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Hello,

if it is possible, send the code to me (perhpas I can
have a look @ week end.

Is it possible to geht the HP-UX driver codes for those
to things ? MUX + SCSI ?

I was offered to sign a NDA, but then nothing happens ...
It would be more easy for me to read such original HP-UX
code. Perhaps you see a possibility to send it also.

Have a nice week end

Christoph



Ryan Bradetich wrote:
> 
> On Fri, 2002-09-13 at 15:59, Christoph Plattner wrote:
> > Hallo Ryan !
> >
> > Congratulation, your MUX driver on port 0 is really
> > working on my machine !!
> 
> Glad to hear that!
> 
> > What do you miss to support the other lines ?
> 
> I am not sure, I've never tried to hook up additional
> lines.  I do have an 8-port MDP somewhere, I'll look
> for it here shortly, and see if I can hook it up.
> 
> > Have you already knowledge of the data structure ?
> 
> Just what I have added into the driver.  If there is
> something that we are obviously missing, I can go back
> and reference the HP-UX mux driver and see what is
> missing.
> 
> > Can I help you here in the code ?
> 
> Please! :)  I do not use multiple lines currently ...
> I only use the line 0, so any testing, optimizing, etc
> is greatly appreciated!
> 
> > Another point: you mentioned the skeleton of the
> > SCSI SPIFI driver. Where can I find that ? I only
> > found a NetBSD code, which I will use as functional
> > template, but I do not know, if this would be enough.
> > Can you give me a hint in this point ?
> 
> I have it on my local system.  It is _very_ ugly at this
> point.  I have got enough to query information from the
> spifi chip, register an interrupt, etc... but currently
> I can not get the spifi chip to actually generate an
> interrupt.
> 
> I would be happy to send you a copy when I get back next
> monday (unless you catch my in the next hour or so), but
> I'm not ready to check it into CVS yeah until I get rid
> of the some ugly hardcoded hacks, global variables, etc.
> Right now the driver is really coded to gather info from
> the ESIEE E35 that I have been testing on.  Once again,
> I do not have any docs on the chipset, I am using both
> the NetBSD and HP-UX drivers as reference. :(
> 
> The driver should be easy to modify for your specific E55,
> but not sure if you are interested in that level of work,
> messyness now.  I promise it will get much better :)
> 
> Thanks,
> 
> - Ryan
> 
> > Christoph
> >
> >
> > --
> > -------------------------------------------------------
> > private:      christoph.plattner@gmx.at
> > company:      christoph.plattner@alcatel.at
> >

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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Derek Engelhaupt said:
> I've decided to load HP-UX on the E55 I've been playing with since
> Debian doesn't work very well on it right now.  I'm sending this OT
> because I need to know where dd lives on an HP-UX 11.11 box.  I'm in a
> limited shell and need an absolute path to dd to get it to accomplish
> the above.  It's so limited it won't even give me the ls command.  Any
> of you HP-UX guys out there?  Since I'm at home I don't have access to
> an HP-UX box at work.  Thanks.

Just how limited is this shell?  Are you just not able to see any
output?  What happens when you run '/bin/ls'?

If you can get stdout, try 'which dd' and 'find / -type f -name dd -print'
to locate the program.  I don't have an HP/UX box in front of me either,
or I would just tell you where dd lived.  =)

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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  Derek Engelhaupt said:

>I've decided to load HP-UX on the E55 I've been playing with since
>Debian doesn't work very well on it right now.  I'm sending this OT
>because I need to know where dd lives on an HP-UX 11.11 box.  I'm in a
[...]

hello,

on my gecko with HP-UX 10.20 it lives in /usr/bin, maybe its the same on
HP-UX 11.11.

Bye

Sven.




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Le vendredi, 13 sep 2002, =E0 21:09 Europe/Paris, Grant Grundler a =E9crit=
 :

> Thibaut VARENE wrote:
>> Now I'm asking you to know if anybody has an objection against making
>> SYM2 the default driver in debian-configs instead of old SYM1.
>
> I don't. All the boxes I care about have 53c8xx chips in them.
>
> A slightly safer approach is to make sym2 the default for PA2.0 =
systems
> and the old sym the default for PA1.1 systems. But GSC/HSC c720 cards
> don't fit that model since they go into systems with either sub-arch.
> I don't see a way around users "tuning" based on actual HW=20
> configuration.
Well, this might be a good solution, though IIRC, Randolph Chung=20
mentioned
that sym1 is b0rken in Linux 2.5.

Therefore making sym2 default for both archs may be preferable for=20
future compatibility?

Anyway, I think we can start with making sym2 default for PA2.0,=20
keeping sym1 for PA1.1,
and then "wait and see".

If everything goes well, we can switch PA1.1 as well.

Opinions ? :)


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/=



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Thibaut VARENE wrote:
> though IIRC, Randolph Chung mentioned
> that sym1 is b0rken in Linux 2.5.

It won't always be broken.

> Anyway, I think we can start with making sym2 default for PA2.0,
> keeping sym1 for PA1.1, and then "wait and see".
> 
> If everything goes well, we can switch PA1.1 as well.

If we switch PA1.1, then we should do that for both releases.
And when we do so, better add a FAQ about "SCSI Controller not found".
Maybe even add it now already to cover PA2.0 case (but don't mention
PA2.0 in the FAQ).

grant


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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] [PATCH] Voodoo framebuffer on PARISC
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Hi,

there has been some discussions on this lists a few weeks back
about getting the Voodoo framebuffer driver  working on HPPA.
The attached patch allows me to use my Voodoo 2 with the sstfb
framebuffer driver in 16bpp in 640x480, 800x600 and 1024x768
resolutions on console and under X.

Greetings,
Helge

NB: This patch is already integrated into the 2.4.19-pa18 kernel and
I'll continue to do some more code-cleanups before trying to get it
into the official kernel.

--Boundary-00=_K/8g9cdhjiEuAkF
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  name="diff"
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Index: sstfb.c
===================================================================
RCS file: /var/cvs/linux/drivers/video/sstfb.c,v
retrieving revision 1.4
diff -u -p -r1.4 sstfb.c
--- sstfb.c	4 Aug 2002 22:59:15 -0000	1.4
+++ sstfb.c	14 Sep 2002 23:58:43 -0000
@@ -107,6 +107,7 @@
 
 #include <asm/io.h>
 #include <asm/ioctl.h>
+#include <asm/uaccess.h>
 
 #include <video/fbcon.h>
 #include <video/fbcon-cfb16.h>
@@ -332,7 +333,7 @@ static void sst_dbg_print_var(struct fb_
 
 #if (SST_DEBUG_REG > 0)
 static void sst_dbg_print_read_reg (u32 reg, u32 val) {
-	char * regname =NULL;
+	char * regname = NULL;
 	switch (reg) {
 	case FBIINIT0: regname="FbiInit0"; break;
 	case FBIINIT1: regname="FbiInit1"; break;
@@ -366,8 +367,8 @@ static void sst_dbg_print_write_reg (u32
 		r_dprintk(" sst_write(%s, %#x)\n", regname, val);
 }
 #else /*  (SST_DEBUG_REG > 0) */
-#  define sst_dbg_print_read_reg(reg, val)	do {}while(0)
-#  define sst_dbg_print_write_reg(reg, val)	do {}while(0)
+#  define sst_dbg_print_read_reg(reg, val)	do {} while(0)
+#  define sst_dbg_print_write_reg(reg, val)	do {} while(0)
 #endif /*  (SST_DEBUG_REG > 0) */
 
 /* register access */
@@ -530,20 +531,15 @@ static int sstfb_setcolreg(u_int regno, 
 		break;
 #endif
 #ifdef EN_24_32_BPP
-#ifdef FBCON_HAS_CFB24
+#if defined(FBCON_HAS_CFB24) || defined(FBCON_HAS_CFB32)
 	case 24:
-		sst_info->fbcon_cmap.cfb32[regno]=col;
-		break;
-#endif
-#ifdef FBCON_HAS_CFB32
 	case 32:
 		sst_info->fbcon_cmap.cfb32[regno]=col;
 		break;
 #endif
 #endif
 	default:
-		eprintk("bug line %d: bad depth '%u'\n",__LINE__,
-			disp->var.bits_per_pixel);
+		BUG();
 		break;
 	}
 	f_dddprintk("bpp: %d . encoded color: %#x\n",
@@ -735,6 +731,7 @@ static int sstfb_encode_var (struct fb_v
 #ifdef EN_24_32_BPP
 	case 24:	/* RGB 888 LfbMode 4 */
 	case 32:	/* ARGB 8888 LfbMode 5 */
+	       	/* in 24bpp we fake a 32 bpp mode */
 		var->red.length    = 8;
 		var->green.length  = 8;
 		var->blue.length   = 8;
@@ -743,11 +740,11 @@ static int sstfb_encode_var (struct fb_v
 		var->red.offset    = 16;
 		var->green.offset  = 8;
 		var->blue.offset   = 0;
-		var->transp.offset = 0; /* in 24bpp we fake a 32 bpp mode */
+		var->transp.offset = 0;
 		break;
 #endif
 	default:
-		eprintk ("bug line %d: bad depth '%u'\n", __LINE__, par->bpp);
+		eprintk("bug line %d: bad depth '%u'\n", __LINE__, par->bpp);
 		break;
 	}
 	return 0;
@@ -775,11 +772,15 @@ static int sstfb_get_fix(struct fb_fix_s
 #define sst_info	((struct sstfb_info *) info)
 
 	struct fb_var_screeninfo *var;
+	struct fb_var_screeninfo var2;
 
 	f_dprintk("sstfb_get_fix(con: %d)\n",con);
-	if (con == -1)
-		sstfb_encode_var(var, &sst_info->current_par, sst_info);
-	else
+	memset(fix, 0, sizeof(struct fb_fix_screeninfo));
+	
+	if (con == -1) {
+		sstfb_encode_var(&var2, &sst_info->current_par, sst_info);
+		var = &var2;
+	} else
 		var = &fb_display[con].var;
 
 	strcpy(fix->id, sst_info->info.modename);
@@ -789,6 +790,7 @@ static int sstfb_get_fix(struct fb_fix_s
 
 	fix->type        = FB_TYPE_PACKED_PIXELS;
 	fix->visual      = FB_VISUAL_TRUECOLOR;
+	fix->accel       = FB_ACCEL_NONE;
 	/*
 	 *   According to the specs, the linelength must be of 1024 *pixels*.
 	 * and the 24bpp mode is in fact a 32 bpp mode.
@@ -966,42 +968,47 @@ static int sstfb_ioctl(struct inode *ino
                        struct fb_info *info)
 {
 #define sst_info	((struct sstfb_info *) info)
-#if (SST_DEBUG_IOCTL >0)
 	int i;
 	u_long p;
-	u32 tmp;
+	u32 tmp, val;
 	u32 fbiinit0;
 	struct pci_dev * sst_dev = sst_info->dev;
-#endif
 
 	f_dprintk("sstfb_ioctl(%x)\n", cmd);
-#if (SST_DEBUG_IOCTL >0)
+	
 	switch (cmd) {
-#  if (SST_DEBUG_VAR >0)
-/* tmp ioctl : dumps fb_display[0-5] */
+		
+#if (SST_DEBUG_VAR >0)
+	/* tmp ioctl : dumps fb_display[0-5] */
 	case _IO('F', 0xdb):		/* 0x46db */
 		f_dprintk("dumping fb_display[0-5].var\n");
 		for (i = 0 ; i< 6 ; i++) {
 			print_var(&fb_display[i].var, "var(%d)", i);
 		}
 		return 0;
-#  endif /* (SST_DEBUG_VAR >0) */
-/* fills the lfb up to *(u32*)arg */
+#endif /* (SST_DEBUG_VAR >0) */
+
+	/* fills the lfb up to given count of pixels */
 	case _IOW('F', 0xdc, u32):	/* 0x46dc */
-		if (*(u32*)arg > 0x400000 )
-			*(u32*) arg = 0x400000;
-		f_dprintk("filling %#x \n", *(u32*)arg);
-		for (p = 0 ; p < *(u32*)arg; p+=2)
+		if (copy_from_user(&val, (void *) arg, sizeof(val)))
+			return -EFAULT;
+		if (val > 0x400000 )
+			val = 0x400000;
+		f_dprintk("filling %#x \n", val);
+		for (p = 0 ; p < val; p+=2)
 			writew( p >> 6 , sst_info->video.vbase + p);
 		return 0;
-/* change VGA pass_through */
+		
+	/* enable/disable VGA pass_through */
 	case _IOW('F', 0xdd, u32):	/* 0x46dd */
+		if (copy_from_user(&val, (void *) arg, sizeof(val)))
+			return -EFAULT;
 		f_dprintk("switch VGA pass-through\n");
 		pci_read_config_dword(sst_dev, PCI_INIT_ENABLE, &tmp);
 		pci_write_config_dword(sst_dev, PCI_INIT_ENABLE,
 				       tmp | PCI_EN_INIT_WR );
 		fbiinit0 = sst_read (FBIINIT0);
-		if (* (u32*)arg) {
+		if (val) {
 			sst_write(FBIINIT0, fbiinit0 & ~EN_VGA_PASSTHROUGH);
 			iprintk ( "Disabling VGA pass-through\n");
 		} else {
@@ -1010,28 +1017,29 @@ static int sstfb_ioctl(struct inode *ino
 		}
 		pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, tmp);
 		return 0;
+
+	/* display test pattern */
 	case _IO('F', 0xde):		/* 0x46de */
 		f_dprintk("test color display\n");
 		f_ddprintk("currcon: %d, bpp %d\n", sst_info->currcon,
 			  sst_info->current_par.bpp);
 		memset_io(sst_info->video.vbase, 0, sst_info->video.len);
-	switch (sst_info->current_par.bpp) {
+		switch (sst_info->current_par.bpp) {
 	       	case 16:
 			sstfb_test16(sst_info);
 			break;
-#  ifdef EN_24_32_BPP
+#ifdef EN_24_32_BPP
 		case 24:
 		case 32:
 			sstfb_test32(sst_info);
 			break;
-#  endif
+#endif
 		default:
-			dprintk("bug line %d: bad depth '%u'\n", __LINE__,
-			        sst_info->current_par.bpp);
-			}
+			return -EFAULT;
+		}
 		return 0;
 	}
-#endif /* (SST_DEBUG_IOCTL >0) */
+	
 	return -EINVAL;
 #undef sst_info
 }
@@ -1494,7 +1502,7 @@ static int sstfb_set_par(const struct ss
 	pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, PCI_EN_FIFO_WR);
 
 	/* set lfbmode : set mode + front buffer for reads/writes
-	   + disable pipeline + disable byte swapping */
+	   + disable pipeline  */
 	switch(par->bpp) {
 	case 16:
 		lfbmode = LFB_565;
@@ -1508,12 +1516,16 @@ static int sstfb_set_par(const struct ss
 		break;
 #endif
 	default:
-		dprintk("bug line %d: bad depth '%u'\n", __LINE__,
-			par->bpp );
+		BUG();
 		return 0;
-		break;
 	}
 
+#if defined(__BIG_ENDIAN)
+	/* enable byte-swizzle functionality in hardware */
+	lfbmode |= ( LFB_WORD_SWIZZLE_WR | LFB_BYTE_SWIZZLE_WR | 
+		     LFB_WORD_SWIZZLE_RD | LFB_BYTE_SWIZZLE_RD );
+#endif
+
 	if (clipping) {
 		sst_write(LFBMODE, lfbmode | EN_PXL_PIPELINE);
 	/*
@@ -1521,7 +1533,7 @@ static int sstfb_set_par(const struct ss
 	 * writes to offscreen areas of the framebuffer are performed,
 	 * the "behaviour is undefined" (_very_ undefined) - Urs
 	 */
-	/* btw, it requires enabling pixel pipeline in LFBMODE .
+	/* btw, it requires enabling pixel pipeline in LFBMODE.
 	   off screen read/writes will just wrap and read/print pixels
 	   on screen. Ugly but not that dangerous */
 
@@ -1536,7 +1548,7 @@ static int sstfb_set_par(const struct ss
 		sst_write(LFBMODE, lfbmode );
 	}
 
-	sst_info->current_par = *par ;
+	sst_info->current_par = *par;
 	return 1;
 }
 
@@ -1571,8 +1583,7 @@ static void sst_set_vidmod_att_ti(struct
 		break;
 #endif
 	default:
-		dprintk("bug line %d: bad depth '%u'\n", __LINE__, bpp);
-		break;
+		BUG();
 	}
 }
 
@@ -1590,8 +1601,7 @@ static void sst_set_vidmod_ics(struct ss
 		break;
 #endif
 	default:
-		dprintk("bug line %d: bad depth '%u'\n", __LINE__, bpp);
-		break;
+		BUG();
 	}
 }
 
@@ -1987,34 +1997,34 @@ static void sstfb_test16(struct sstfb_in
 	u_long fbbase_virt = sst_info->video.vbase;
 
 	f_dprintk("sstfb_test16\n");
-	/* rect blanc 20x100+200+0 */
+	/* white rectangle 20x100+200+0 */
 	for (i=0 ; i< 100; i++) {
 	  p = fbbase_virt + 2048 *i+400;
-	  for (j=0 ; j < 10 ; j++) {
-	    writel( 0xffffffff, p);
+	  for (j=0; j < 10; j++) {
+	    writel(0xffffffff, p);
 	    p+=4;
 	  }
 	}
-	/* rect bleu 180x200+0+0 */
+	/* blue rectangle 180x200+0+0 */
 	for (i=0 ; i< 200; i++) {
 	  p = fbbase_virt + 2048 *i;
-	  for (j=0 ; j < 90 ; j++) {
-	    writel(0x001f001f,p);
+	  for (j=0; j < 90; j++) {
+	    writel(0x001f001f, p);
 	    p+=4;
 	  }
 	}
-	/* carre vert 40x40+100+0 */
+	/* green rectangle 40x40+100+0 */
 	for (i=0 ; i< 40 ; i++) {
 	  p = fbbase_virt + 2048 *i + 200;
-	  for (j=0; j <20;j++) {
+	  for (j=0; j <20; j++) {
 	    writel(0x07e007e0, p);
 	    p+=4;
 	  }
 	}
-	/*carre rouge 40x40+100+40 */
+	/* red rectangle 40x40+100+40 */
 	for (i=0; i<40; i++) {
 	  p = fbbase_virt + 2048 * (i+40) + 200;
-	  for (j=0; j <20;j++) {
+	  for (j=0; j <20; j++) {
 	    writel( 0xf800f800, p);
 	    p+=4;
 	  }
@@ -2034,22 +2044,22 @@ static void sstfb_test32(struct sstfb_in
 	for (i=0 ; i< 100; i++) {
 	  p = fbbase_virt + 4096*i + 800;
 	  for (j=0 ; j < 20 ; j++) {
-	    writel( 0x00ffffff, p);
+	    writel(0x00ffffff, p);
 	    p+=4;
 	  }
 	}
 	/* rect bleu 180x200+0+0 */
 	for (i=0 ; i< 200; i++) {
 	  p = fbbase_virt + 4096 * i;
-	  for (j=0 ; j < 180 ; j++) {
-	    writel(0x000000ff,p);
+	  for (j=0 ; j < 180; j++) {
+	    writel(0x000000ff, p);
 	    p+=4;
 	  }
 	}
 	/* carre vert 40x40+100+0 */
 	for (i=0 ; i< 40 ; i++) {
 	  p = fbbase_virt + 4096 *i + 400;
-	  for (j=0; j <40;j++) {
+	  for (j=0; j <40; j++) {
 	    writel(0x0000ff00, p);
 	    p+=4;
 	  }
@@ -2057,8 +2067,8 @@ static void sstfb_test32(struct sstfb_in
 	/*carre rouge 40x40+100+10 */
 	for (i=0; i<40; i++) {
 	  p = fbbase_virt + 4096 * (i+40) + 400;
-	  for (j=0; j <40;j++) {
-	    writel( 0x00ff0000, p);
+	  for (j=0; j <40; j++) {
+	    writel(0x00ff0000, p);
 	    p+=4;
 	  }
 	}
Index: sstfb.h
===================================================================
RCS file: /var/cvs/linux/drivers/video/sstfb.h,v
retrieving revision 1.3
diff -u -p -r1.3 sstfb.h
--- sstfb.h	4 Aug 2002 22:59:15 -0000	1.3
+++ sstfb.h	14 Sep 2002 23:58:44 -0000
@@ -114,7 +114,11 @@
 #  define RD_BUFF_FRONT		  0		/* read buff select (front) */
 #  define RD_BUFF_BACK		  (1 << 6)	/* back */
 #  define EN_PXL_PIPELINE	  BIT(8)	/* pixel pipeline (clip..)*/
+#  define LFB_WORD_SWIZZLE_WR	  BIT(11)	/* enable write-wordswap (big-endian) */
+#  define LFB_BYTE_SWIZZLE_WR	  BIT(12)	/* enable write-byteswap (big-endian) */
 #  define LFB_INVERT_Y		  BIT(13)	/* invert Y origin (LFB) */
+#  define LFB_WORD_SWIZZLE_RD	  BIT(15)	/* enable read-wordswap (big-endian) */
+#  define LFB_BYTE_SWIZZLE_RD	  BIT(16)	/* enable read-byteswap (big-endian) */
 #define CLIP_LEFT_RIGHT		0x0118
 #define CLIP_LOWY_HIGHY		0x011c
 #define NOPCMD			0x0120

--Boundary-00=_K/8g9cdhjiEuAkF--



From - Thu Nov 08 21:24:34 2018
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From: "B. Douglas Hilton" <bdhilton@charter.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [PATCH] Voodoo framebuffer on PARISC
Date: Sun, 15 Sep 2002 00:28:14 -0400
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To: Helge Deller <deller@gmx.de>
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Fantastic! I was tinkering with this but I stalled out. I had
to cart my C200 in to work to use as a prototype server machine
for a proof of concept on a new project, but I will be sure to
give it a whirl as it still has the V2 inside it.

This might really help the project as now all the FX guys
have an inexpensive option for graphics!

When building the kernel should I disable "console on STI fb"
option then? Did you add a "console on sstfb" option to config?

Can't wait to try it out!

Cheers!
- Doug



Helge Deller wrote:
> Hi,
> 
> there has been some discussions on this lists a few weeks back
> about getting the Voodoo framebuffer driver  working on HPPA.
> The attached patch allows me to use my Voodoo 2 with the sstfb
> framebuffer driver in 16bpp in 640x480, 800x600 and 1024x768
> resolutions on console and under X.
> 
> Greetings,
> Helge
> 
> NB: This patch is already integrated into the 2.4.19-pa18 kernel and
> I'll continue to do some more code-cleanups before trying to get it
> into the official kernel.
> 
> 
> ------------------------------------------------------------------------
> 
> Index: sstfb.c
> ===================================================================
> RCS file: /var/cvs/linux/drivers/video/sstfb.c,v
> retrieving revision 1.4
> diff -u -p -r1.4 sstfb.c
> --- sstfb.c	4 Aug 2002 22:59:15 -0000	1.4
> +++ sstfb.c	14 Sep 2002 23:58:43 -0000
> @@ -107,6 +107,7 @@
>  
>  #include <asm/io.h>
>  #include <asm/ioctl.h>
> +#include <asm/uaccess.h>
>  
>  #include <video/fbcon.h>
>  #include <video/fbcon-cfb16.h>
> @@ -332,7 +333,7 @@ static void sst_dbg_print_var(struct fb_
>  
>  #if (SST_DEBUG_REG > 0)
>  static void sst_dbg_print_read_reg (u32 reg, u32 val) {
> -	char * regname =NULL;
> +	char * regname = NULL;
>  	switch (reg) {
>  	case FBIINIT0: regname="FbiInit0"; break;
>  	case FBIINIT1: regname="FbiInit1"; break;
> @@ -366,8 +367,8 @@ static void sst_dbg_print_write_reg (u32
>  		r_dprintk(" sst_write(%s, %#x)\n", regname, val);
>  }
>  #else /*  (SST_DEBUG_REG > 0) */
> -#  define sst_dbg_print_read_reg(reg, val)	do {}while(0)
> -#  define sst_dbg_print_write_reg(reg, val)	do {}while(0)
> +#  define sst_dbg_print_read_reg(reg, val)	do {} while(0)
> +#  define sst_dbg_print_write_reg(reg, val)	do {} while(0)
>  #endif /*  (SST_DEBUG_REG > 0) */
>  
>  /* register access */
> @@ -530,20 +531,15 @@ static int sstfb_setcolreg(u_int regno, 
>  		break;
>  #endif
>  #ifdef EN_24_32_BPP
> -#ifdef FBCON_HAS_CFB24
> +#if defined(FBCON_HAS_CFB24) || defined(FBCON_HAS_CFB32)
>  	case 24:
> -		sst_info->fbcon_cmap.cfb32[regno]=col;
> -		break;
> -#endif
> -#ifdef FBCON_HAS_CFB32
>  	case 32:
>  		sst_info->fbcon_cmap.cfb32[regno]=col;
>  		break;
>  #endif
>  #endif
>  	default:
> -		eprintk("bug line %d: bad depth '%u'\n",__LINE__,
> -			disp->var.bits_per_pixel);
> +		BUG();
>  		break;
>  	}
>  	f_dddprintk("bpp: %d . encoded color: %#x\n",
> @@ -735,6 +731,7 @@ static int sstfb_encode_var (struct fb_v
>  #ifdef EN_24_32_BPP
>  	case 24:	/* RGB 888 LfbMode 4 */
>  	case 32:	/* ARGB 8888 LfbMode 5 */
> +	       	/* in 24bpp we fake a 32 bpp mode */
>  		var->red.length    = 8;
>  		var->green.length  = 8;
>  		var->blue.length   = 8;
> @@ -743,11 +740,11 @@ static int sstfb_encode_var (struct fb_v
>  		var->red.offset    = 16;
>  		var->green.offset  = 8;
>  		var->blue.offset   = 0;
> -		var->transp.offset = 0; /* in 24bpp we fake a 32 bpp mode */
> +		var->transp.offset = 0;
>  		break;
>  #endif
>  	default:
> -		eprintk ("bug line %d: bad depth '%u'\n", __LINE__, par->bpp);
> +		eprintk("bug line %d: bad depth '%u'\n", __LINE__, par->bpp);
>  		break;
>  	}
>  	return 0;
> @@ -775,11 +772,15 @@ static int sstfb_get_fix(struct fb_fix_s
>  #define sst_info	((struct sstfb_info *) info)
>  
>  	struct fb_var_screeninfo *var;
> +	struct fb_var_screeninfo var2;
>  
>  	f_dprintk("sstfb_get_fix(con: %d)\n",con);
> -	if (con == -1)
> -		sstfb_encode_var(var, &sst_info->current_par, sst_info);
> -	else
> +	memset(fix, 0, sizeof(struct fb_fix_screeninfo));
> +	
> +	if (con == -1) {
> +		sstfb_encode_var(&var2, &sst_info->current_par, sst_info);
> +		var = &var2;
> +	} else
>  		var = &fb_display[con].var;
>  
>  	strcpy(fix->id, sst_info->info.modename);
> @@ -789,6 +790,7 @@ static int sstfb_get_fix(struct fb_fix_s
>  
>  	fix->type        = FB_TYPE_PACKED_PIXELS;
>  	fix->visual      = FB_VISUAL_TRUECOLOR;
> +	fix->accel       = FB_ACCEL_NONE;
>  	/*
>  	 *   According to the specs, the linelength must be of 1024 *pixels*.
>  	 * and the 24bpp mode is in fact a 32 bpp mode.
> @@ -966,42 +968,47 @@ static int sstfb_ioctl(struct inode *ino
>                         struct fb_info *info)
>  {
>  #define sst_info	((struct sstfb_info *) info)
> -#if (SST_DEBUG_IOCTL >0)
>  	int i;
>  	u_long p;
> -	u32 tmp;
> +	u32 tmp, val;
>  	u32 fbiinit0;
>  	struct pci_dev * sst_dev = sst_info->dev;
> -#endif
>  
>  	f_dprintk("sstfb_ioctl(%x)\n", cmd);
> -#if (SST_DEBUG_IOCTL >0)
> +	
>  	switch (cmd) {
> -#  if (SST_DEBUG_VAR >0)
> -/* tmp ioctl : dumps fb_display[0-5] */
> +		
> +#if (SST_DEBUG_VAR >0)
> +	/* tmp ioctl : dumps fb_display[0-5] */
>  	case _IO('F', 0xdb):		/* 0x46db */
>  		f_dprintk("dumping fb_display[0-5].var\n");
>  		for (i = 0 ; i< 6 ; i++) {
>  			print_var(&fb_display[i].var, "var(%d)", i);
>  		}
>  		return 0;
> -#  endif /* (SST_DEBUG_VAR >0) */
> -/* fills the lfb up to *(u32*)arg */
> +#endif /* (SST_DEBUG_VAR >0) */
> +
> +	/* fills the lfb up to given count of pixels */
>  	case _IOW('F', 0xdc, u32):	/* 0x46dc */
> -		if (*(u32*)arg > 0x400000 )
> -			*(u32*) arg = 0x400000;
> -		f_dprintk("filling %#x \n", *(u32*)arg);
> -		for (p = 0 ; p < *(u32*)arg; p+=2)
> +		if (copy_from_user(&val, (void *) arg, sizeof(val)))
> +			return -EFAULT;
> +		if (val > 0x400000 )
> +			val = 0x400000;
> +		f_dprintk("filling %#x \n", val);
> +		for (p = 0 ; p < val; p+=2)
>  			writew( p >> 6 , sst_info->video.vbase + p);
>  		return 0;
> -/* change VGA pass_through */
> +		
> +	/* enable/disable VGA pass_through */
>  	case _IOW('F', 0xdd, u32):	/* 0x46dd */
> +		if (copy_from_user(&val, (void *) arg, sizeof(val)))
> +			return -EFAULT;
>  		f_dprintk("switch VGA pass-through\n");
>  		pci_read_config_dword(sst_dev, PCI_INIT_ENABLE, &tmp);
>  		pci_write_config_dword(sst_dev, PCI_INIT_ENABLE,
>  				       tmp | PCI_EN_INIT_WR );
>  		fbiinit0 = sst_read (FBIINIT0);
> -		if (* (u32*)arg) {
> +		if (val) {
>  			sst_write(FBIINIT0, fbiinit0 & ~EN_VGA_PASSTHROUGH);
>  			iprintk ( "Disabling VGA pass-through\n");
>  		} else {
> @@ -1010,28 +1017,29 @@ static int sstfb_ioctl(struct inode *ino
>  		}
>  		pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, tmp);
>  		return 0;
> +
> +	/* display test pattern */
>  	case _IO('F', 0xde):		/* 0x46de */
>  		f_dprintk("test color display\n");
>  		f_ddprintk("currcon: %d, bpp %d\n", sst_info->currcon,
>  			  sst_info->current_par.bpp);
>  		memset_io(sst_info->video.vbase, 0, sst_info->video.len);
> -	switch (sst_info->current_par.bpp) {
> +		switch (sst_info->current_par.bpp) {
>  	       	case 16:
>  			sstfb_test16(sst_info);
>  			break;
> -#  ifdef EN_24_32_BPP
> +#ifdef EN_24_32_BPP
>  		case 24:
>  		case 32:
>  			sstfb_test32(sst_info);
>  			break;
> -#  endif
> +#endif
>  		default:
> -			dprintk("bug line %d: bad depth '%u'\n", __LINE__,
> -			        sst_info->current_par.bpp);
> -			}
> +			return -EFAULT;
> +		}
>  		return 0;
>  	}
> -#endif /* (SST_DEBUG_IOCTL >0) */
> +	
>  	return -EINVAL;
>  #undef sst_info
>  }
> @@ -1494,7 +1502,7 @@ static int sstfb_set_par(const struct ss
>  	pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, PCI_EN_FIFO_WR);
>  
>  	/* set lfbmode : set mode + front buffer for reads/writes
> -	   + disable pipeline + disable byte swapping */
> +	   + disable pipeline  */
>  	switch(par->bpp) {
>  	case 16:
>  		lfbmode = LFB_565;
> @@ -1508,12 +1516,16 @@ static int sstfb_set_par(const struct ss
>  		break;
>  #endif
>  	default:
> -		dprintk("bug line %d: bad depth '%u'\n", __LINE__,
> -			par->bpp );
> +		BUG();
>  		return 0;
> -		break;
>  	}
>  
> +#if defined(__BIG_ENDIAN)
> +	/* enable byte-swizzle functionality in hardware */
> +	lfbmode |= ( LFB_WORD_SWIZZLE_WR | LFB_BYTE_SWIZZLE_WR | 
> +		     LFB_WORD_SWIZZLE_RD | LFB_BYTE_SWIZZLE_RD );
> +#endif
> +
>  	if (clipping) {
>  		sst_write(LFBMODE, lfbmode | EN_PXL_PIPELINE);
>  	/*
> @@ -1521,7 +1533,7 @@ static int sstfb_set_par(const struct ss
>  	 * writes to offscreen areas of the framebuffer are performed,
>  	 * the "behaviour is undefined" (_very_ undefined) - Urs
>  	 */
> -	/* btw, it requires enabling pixel pipeline in LFBMODE .
> +	/* btw, it requires enabling pixel pipeline in LFBMODE.
>  	   off screen read/writes will just wrap and read/print pixels
>  	   on screen. Ugly but not that dangerous */
>  
> @@ -1536,7 +1548,7 @@ static int sstfb_set_par(const struct ss
>  		sst_write(LFBMODE, lfbmode );
>  	}
>  
> -	sst_info->current_par = *par ;
> +	sst_info->current_par = *par;
>  	return 1;
>  }
>  
> @@ -1571,8 +1583,7 @@ static void sst_set_vidmod_att_ti(struct
>  		break;
>  #endif
>  	default:
> -		dprintk("bug line %d: bad depth '%u'\n", __LINE__, bpp);
> -		break;
> +		BUG();
>  	}
>  }
>  
> @@ -1590,8 +1601,7 @@ static void sst_set_vidmod_ics(struct ss
>  		break;
>  #endif
>  	default:
> -		dprintk("bug line %d: bad depth '%u'\n", __LINE__, bpp);
> -		break;
> +		BUG();
>  	}
>  }
>  
> @@ -1987,34 +1997,34 @@ static void sstfb_test16(struct sstfb_in
>  	u_long fbbase_virt = sst_info->video.vbase;
>  
>  	f_dprintk("sstfb_test16\n");
> -	/* rect blanc 20x100+200+0 */
> +	/* white rectangle 20x100+200+0 */
>  	for (i=0 ; i< 100; i++) {
>  	  p = fbbase_virt + 2048 *i+400;
> -	  for (j=0 ; j < 10 ; j++) {
> -	    writel( 0xffffffff, p);
> +	  for (j=0; j < 10; j++) {
> +	    writel(0xffffffff, p);
>  	    p+=4;
>  	  }
>  	}
> -	/* rect bleu 180x200+0+0 */
> +	/* blue rectangle 180x200+0+0 */
>  	for (i=0 ; i< 200; i++) {
>  	  p = fbbase_virt + 2048 *i;
> -	  for (j=0 ; j < 90 ; j++) {
> -	    writel(0x001f001f,p);
> +	  for (j=0; j < 90; j++) {
> +	    writel(0x001f001f, p);
>  	    p+=4;
>  	  }
>  	}
> -	/* carre vert 40x40+100+0 */
> +	/* green rectangle 40x40+100+0 */
>  	for (i=0 ; i< 40 ; i++) {
>  	  p = fbbase_virt + 2048 *i + 200;
> -	  for (j=0; j <20;j++) {
> +	  for (j=0; j <20; j++) {
>  	    writel(0x07e007e0, p);
>  	    p+=4;
>  	  }
>  	}
> -	/*carre rouge 40x40+100+40 */
> +	/* red rectangle 40x40+100+40 */
>  	for (i=0; i<40; i++) {
>  	  p = fbbase_virt + 2048 * (i+40) + 200;
> -	  for (j=0; j <20;j++) {
> +	  for (j=0; j <20; j++) {
>  	    writel( 0xf800f800, p);
>  	    p+=4;
>  	  }
> @@ -2034,22 +2044,22 @@ static void sstfb_test32(struct sstfb_in
>  	for (i=0 ; i< 100; i++) {
>  	  p = fbbase_virt + 4096*i + 800;
>  	  for (j=0 ; j < 20 ; j++) {
> -	    writel( 0x00ffffff, p);
> +	    writel(0x00ffffff, p);
>  	    p+=4;
>  	  }
>  	}
>  	/* rect bleu 180x200+0+0 */
>  	for (i=0 ; i< 200; i++) {
>  	  p = fbbase_virt + 4096 * i;
> -	  for (j=0 ; j < 180 ; j++) {
> -	    writel(0x000000ff,p);
> +	  for (j=0 ; j < 180; j++) {
> +	    writel(0x000000ff, p);
>  	    p+=4;
>  	  }
>  	}
>  	/* carre vert 40x40+100+0 */
>  	for (i=0 ; i< 40 ; i++) {
>  	  p = fbbase_virt + 4096 *i + 400;
> -	  for (j=0; j <40;j++) {
> +	  for (j=0; j <40; j++) {
>  	    writel(0x0000ff00, p);
>  	    p+=4;
>  	  }
> @@ -2057,8 +2067,8 @@ static void sstfb_test32(struct sstfb_in
>  	/*carre rouge 40x40+100+10 */
>  	for (i=0; i<40; i++) {
>  	  p = fbbase_virt + 4096 * (i+40) + 400;
> -	  for (j=0; j <40;j++) {
> -	    writel( 0x00ff0000, p);
> +	  for (j=0; j <40; j++) {
> +	    writel(0x00ff0000, p);
>  	    p+=4;
>  	  }
>  	}
> Index: sstfb.h
> ===================================================================
> RCS file: /var/cvs/linux/drivers/video/sstfb.h,v
> retrieving revision 1.3
> diff -u -p -r1.3 sstfb.h
> --- sstfb.h	4 Aug 2002 22:59:15 -0000	1.3
> +++ sstfb.h	14 Sep 2002 23:58:44 -0000
> @@ -114,7 +114,11 @@
>  #  define RD_BUFF_FRONT		  0		/* read buff select (front) */
>  #  define RD_BUFF_BACK		  (1 << 6)	/* back */
>  #  define EN_PXL_PIPELINE	  BIT(8)	/* pixel pipeline (clip..)*/
> +#  define LFB_WORD_SWIZZLE_WR	  BIT(11)	/* enable write-wordswap (big-endian) */
> +#  define LFB_BYTE_SWIZZLE_WR	  BIT(12)	/* enable write-byteswap (big-endian) */
>  #  define LFB_INVERT_Y		  BIT(13)	/* invert Y origin (LFB) */
> +#  define LFB_WORD_SWIZZLE_RD	  BIT(15)	/* enable read-wordswap (big-endian) */
> +#  define LFB_BYTE_SWIZZLE_RD	  BIT(16)	/* enable read-byteswap (big-endian) */
>  #define CLIP_LEFT_RIGHT		0x0118
>  #define CLIP_LOWY_HIGHY		0x011c
>  #define NOPCMD			0x0120





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From: Richard Hirst <rhirst@linuxcare.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Making SYM2 default SYM-SCSI driver instead of SYM1
Date: Sun, 15 Sep 2002 08:17:16 +0100
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To: Grant Grundler <grundler@dsl2.external.hp.com>
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On Fri, Sep 13, 2002 at 01:09:29PM -0600, Grant Grundler wrote:
> Thibaut VARENE wrote:
> > Now I'm asking you to know if anybody has an objection against making 
> > SYM2 the default driver in debian-configs instead of old SYM1.
> 
> I don't. All the boxes I care about have 53c8xx chips in them.

I don't think that is relevant.  SYM1 and SYM2 both only drive 53c8xx
chips (and newer, 53c1010, etc).  SYM1 didn't drive some of the nearly
53c810 chips (iirc), and you needed ncr53c8xx.c to drive those.

> A slightly safer approach is to make sym2 the default for PA2.0 systems
> and the old sym the default for PA1.1 systems. But GSC/HSC c720 cards
> don't fit that model since they go into systems with either sub-arch.

There was no linux driver for 53c720 before parisc.  Now we drive 53c720
with a modified ncr53c8xx.  So, something like my B180 with a bluefish
card uses:

CONFIG_SCSI_LASI700 (James driver) for 53c710 (cdrom)
CONFIG_SCSI_ZALON (modified ncr53c8xx) for 53c720 on blusfish
CONFIG_SCSI_SYM53C8XX (SYMV1) for 53c8?? main disk interface

So, in theory, chnaging to CONFIG_SCSI_SYM53C8XX_2 for all configs
shouldn't upset anyone.  SYM1 and SYM2 both only drive PCI chips, so
that makes the change irrelevant to earlier boxes anyway.

Cheers,
  Richard



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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] Re: [PATCH] Voodoo framebuffer on PARISC
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Hi Douglas,

it's safe to enable both (stifb and sstfb), in which case one of
them is /dev/fb0 (presumably the sstfb) and the other /dev/fb1 (stifb).
If you hook them up to different monitors you can use both graphic
cards at the same time. If you connect them in chain, only the
sstfb will be visible.

Greetings,
Helge

On Sunday 15 September 2002 06:28, B. Douglas Hilton wrote:
> Fantastic! I was tinkering with this but I stalled out. I had
> to cart my C200 in to work to use as a prototype server machine
> for a proof of concept on a new project, but I will be sure to
> give it a whirl as it still has the V2 inside it.
>
> This might really help the project as now all the FX guys
> have an inexpensive option for graphics!
>
> When building the kernel should I disable "console on STI fb"
> option then? Did you add a "console on sstfb" option to config?
>
> Can't wait to try it out!
>
> Cheers!
> - Doug
>
> Helge Deller wrote:
> > Hi,
> >
> > there has been some discussions on this lists a few weeks back
> > about getting the Voodoo framebuffer driver  working on HPPA.
> > The attached patch allows me to use my Voodoo 2 with the sstfb
> > framebuffer driver in 16bpp in 640x480, 800x600 and 1024x768
> > resolutions on console and under X.
> >
> > Greetings,
> > Helge
> >
> > NB: This patch is already integrated into the 2.4.19-pa18 kernel and
> > I'll continue to do some more code-cleanups before trying to get it
> > into the official kernel.
> >
> > ...patch removed...



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Making SYM2 default SYM-SCSI driver instead of SYM1
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Richard Hirst wrote:
> I don't think that is relevant.  SYM1 and SYM2 both only drive 53c8xx
> chips (and newer, 53c1010, etc).  SYM1 didn't drive some of the nearly
> 53c810 chips (iirc), and you needed ncr53c8xx.c to drive those.

Ah ok. my bad. I thought sym1 drove 53c720 but that's wrong.

Someone might consider porting the PDC_INITIATOR support to ncr53c8xx.
Should be a cut/paste from sym1 or sym2 driver.

> So, in theory, chnaging to CONFIG_SCSI_SYM53C8XX_2 for all configs
> shouldn't upset anyone.  SYM1 and SYM2 both only drive PCI chips, so
> that makes the change irrelevant to earlier boxes anyway.

OK - I've been using sym2 on both c3k and A500. I'm comfortable with it.
Sounds like I should use it on B180 as well.

Thanks for clarification richard!

grant


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Subject: [parisc-linux] rp2470 hang in sym2 driver
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Hi all,

I've revisited this "rp2470 hang" issue. This happens with sym2.
The same kernels boot on A500-44 but hang on A500-65 (650Mhz).
It smells like a deadlock.

I don't believe this is a result of interrupt distribution. I can't
say for sure since I've had the IRQ distr code in my tree for a while.
I don't think I've ever booted rp2470 with 2.4.19.

I will try sym1 driver *and* try disabling IRQ distribution
in the next couple of days.

I've reproduced the hang twice with 2.4.19-pa18.
Console output stops after first line of either "sym3:" output
or "sym4:" (ie only one line is printed for that interface.
TOC had the following:

	CPU0 0x10143420 timer_bh+200
	CPU0 0x102276fc sym53c8xx_timer+ec

	CPU1 0x1010dd40 do_irq+100
	CPU1 0x102275f0 sym53c8xx_intr+140

and

	CPU0 GR02 0x10143420 timer_bh+200
	CPU0 IOAQ 0x102276fc sym53c8xx_timer+ec

	CPU1 GR02 0x102274f4 sym53c8xx_intr+44
	CPU1 IOAQ 0x102275f0 sym53c8xx_intr+140

I hoped someone else has a chance to look at this too.
The rp2470 (gsyprf11) is externally accessible if a volunteer has time
to dig into this. Or let me know what I might try next.

thanks,
grant


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Subject: [parisc-linux] Re: SCSI/MUX driver on E55, NDA for sorce code
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Yes, I would be interested in HP-UX source code access,
if there are no costs I have to pay. I would sign a NDA.

The status of SCSI driver you sent me:
The machine does not really access the hardware. Also
if I patch the data structures or the "dev->hpa" pointer,
the driver reacts the same strange way.

The status of MUX: It is not working to access to offset
0x80 for the lines. The machine dies. I think this problem
can be solved very easy, looking in the HP-UX driver code.

I will do some futher code instrumentation on the SPIFI
driver. Then I will reread the driver of you and NetBSD
to have an idea, which access does fail here. Or do we
have a wrong hardware access anyway ?

Good start of the next week

Christoph



Ryan Bradetich wrote:
> 
> Thomas and Christoph,
> 
> Here is the current diff I have (I told you it was ugly! :))
> 
> I can not send you the HP-UX code.  If you are interested
> in pursuing the NDA to get access to the drivers, I can approach
> Alan Meyer (LSO Lab manager).  I am in IT, not the R&D lab so
> I do not have much insight in what they are doing :(
> 
> Hope this diff helps, and together hopefully we can get this to
> work and committed!
> 
> thanks,
> 
> - Ryan
> 
> On Fri, 2002-09-13 at 18:25, Christoph Plattner wrote:
> > Hello,
> >
> > if it is possible, send the code to me (perhpas I can
> > have a look @ week end.
> >
> > Is it possible to geht the HP-UX driver codes for those
> > to things ? MUX + SCSI ?
> >
> > I was offered to sign a NDA, but then nothing happens ...
> > It would be more easy for me to read such original HP-UX
> > code. Perhaps you see a possibility to send it also.
> >
> > Have a nice week end
> >
> > Christoph
> >
> >
> >
> > Ryan Bradetich wrote:
> > >
> > > On Fri, 2002-09-13 at 15:59, Christoph Plattner wrote:
> > > > Hallo Ryan !
> > > >
> > > > Congratulation, your MUX driver on port 0 is really
> > > > working on my machine !!
> > >
> > > Glad to hear that!
> > >
> > > > What do you miss to support the other lines ?
> > >
> > > I am not sure, I've never tried to hook up additional
> > > lines.  I do have an 8-port MDP somewhere, I'll look
> > > for it here shortly, and see if I can hook it up.
> > >
> > > > Have you already knowledge of the data structure ?
> > >
> > > Just what I have added into the driver.  If there is
> > > something that we are obviously missing, I can go back
> > > and reference the HP-UX mux driver and see what is
> > > missing.
> > >
> > > > Can I help you here in the code ?
> > >
> > > Please! :)  I do not use multiple lines currently ...
> > > I only use the line 0, so any testing, optimizing, etc
> > > is greatly appreciated!
> > >
> > > > Another point: you mentioned the skeleton of the
> > > > SCSI SPIFI driver. Where can I find that ? I only
> > > > found a NetBSD code, which I will use as functional
> > > > template, but I do not know, if this would be enough.
> > > > Can you give me a hint in this point ?
> > >
> > > I have it on my local system.  It is _very_ ugly at this
> > > point.  I have got enough to query information from the
> > > spifi chip, register an interrupt, etc... but currently
> > > I can not get the spifi chip to actually generate an
> > > interrupt.
> > >
> > > I would be happy to send you a copy when I get back next
> > > monday (unless you catch my in the next hour or so), but
> > > I'm not ready to check it into CVS yeah until I get rid
> > > of the some ugly hardcoded hacks, global variables, etc.
> > > Right now the driver is really coded to gather info from
> > > the ESIEE E35 that I have been testing on.  Once again,
> > > I do not have any docs on the chipset, I am using both
> > > the NetBSD and HP-UX drivers as reference. :(
> > >
> > > The driver should be easy to modify for your specific E55,
> > > but not sure if you are interested in that level of work,
> > > messyness now.  I promise it will get much better :)
> > >
> > > Thanks,
> > >
> > > - Ryan
> > >
> > > > Christoph
> > > >
> > > >
> > > > --
> > > > -------------------------------------------------------
> > > > private:      christoph.plattner@gmx.at
> > > > company:      christoph.plattner@alcatel.at
> > > >
> >
> > --
> > -------------------------------------------------------
> > private:      christoph.plattner@gmx.at
> > company:      christoph.plattner@alcatel.at
> >
> 
>   ------------------------------------------------------------------------
>                   Name: spifi.patch
>    spifi.patch    Type: text/x-patch
>               Encoding: quoted-printable

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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On Sun, Sep 15, 2002 at 08:11:07PM +0200, Christoph Plattner wrote:
> The status of MUX: It is not working to access to offset
> 0x80 for the lines. The machine dies. I think this problem
> can be solved very easy, looking in the HP-UX driver code.

Not so sure...

common/sio/mux2.c:

for (loop = 0; loop < ports; loop++, ttyp++) {
        HW.hpa                  = MUX_DATA.hpa + 0x800 + (loop * 0x80);
        HW.io_reg_ptr           = (io_reg_type *)(HW.hpa + 0x30);
}

-- 
Revolutions do not require corporate support.


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Helge wrote:

> This patch is already integrated into the 2.4.19-pa18 
> kernel ...

Where can I get pa18? The latest on ftp.parisc-linux.org seems to be
pa17.

Cheers,
Tobias




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Hallo Ryan,

here some comments on my non-successful work so far.

I did code reading and used debug instrumented code
to understand the structure behind the linux SCSI
handling.

Further I studied the NetBSD code. 

One major point: We do not get any interrupts.
For my analysis I only had a look on the first
steps of SCSI initialization, so this was the
INQUERY command.

The spifi command routine is called correctly,
but it has a wrong logical implementation. As I 
have seen on other (older) linux driver, the
xxx_command() has to block, after the command was
successful completed by interrupt. But the interrupt
never comes !! Even a "long" delay for simulating
blocking does not solve this problem.

>From base of the NetBSD code, I cannot follow your
code resetting the spifi subsystem. I think you have
this from HP-UX code. Especially the 

  __raw_writel(CMD_RESET, dev->hpa + IO_MODULE_COMMAND);

Is this a reset method via the IO PDC address space
common for all HP devices ? In the NetBSD the full
reset is done only via the `auxctrl' register, which
you use for releasing the reset state.

So we have a principal problem here, not having correct
access to the spifi subsystem. Except: the SCSI-ID is
read out correctly, I think, as ...

SCSI subsystem driver Revision: 1.00
DEBUG: 0xfff74c00
Device: Sahp Baat Kiuh SCSI
scsi0 : SPIFI SCSI: scsi_id: 7 IRQ: 34 type: SPIFI-3 (SE) parity
checking: enabled

... is reported !

Is everything around the interrupt subsystem setup correctly ?
The `cat /proc/interrupts' tells ...

bash# cat /proc/interrupts 
          CPU396195552 
 32:     124925      PARISC-CPU  timer
 33:      19767      PARISC-CPU  lasi
 34:          0      PARISC-CPU  spifi
 87:      19767            Lasi  i82596

... which is no surprise ... !

Till soon,
Christoph P.





-- 
-------------------------------------------------------
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company:	christoph.plattner@alcatel.at


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Thanks for that !

But I think, my Linux code dose the same !!!

	info->iomem_base = (void *)(hpa + MUX_OFFSET + 
				    (line * MUX_LINE_OFFSET));

This info->iomem_base is used by all accesses, the 
registers of i/o are defined by Ryan as:

#define IO_COMMAND_REG_OFFSET 0x30
#define IO_STATUS_REG_OFFSET 0x34
#define IO_DATA_REG_OFFSET 0x3c
#define IO_DCOUNT_REG_OFFSET 0x40
#define IO_UCOUNT_REG_OFFSET 0x44
#define IO_FIFOS_REG_OFFSET 0x48

So the offset of 0x30 is inside those macros.

An example of an access:

		data = __raw_readl((unsigned long)info->iomem_base 
				   + IO_DATA_REG_OFFSET);

... reading characters from the input buffers.

Any further idea ?

Ryan, you mentioned problems concerning missing locks, but
I cannot think about this. Those devices should be controlled
independent, am I wrong ?

I hope, we will solve this all (all means including SPIFI
SCSI driver too !).

Christoph



Matthew Wilcox wrote:
> 
> On Sun, Sep 15, 2002 at 08:11:07PM +0200, Christoph Plattner wrote:
> > The status of MUX: It is not working to access to offset
> > 0x80 for the lines. The machine dies. I think this problem
> > can be solved very easy, looking in the HP-UX driver code.
> 
> Not so sure...
> 
> common/sio/mux2.c:
> 
> for (loop = 0; loop < ports; loop++, ttyp++) {
>         HW.hpa                  = MUX_DATA.hpa + 0x800 + (loop * 0x80);
>         HW.io_reg_ptr           = (io_reg_type *)(HW.hpa + 0x30);
> }
> 
> --
> Revolutions do not require corporate support.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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Xref: news.gmane.org gmane.linux.ports.parisc:16134

Le lundi, 16 sep 2002, =E0 00:13 Europe/Paris, Tobias Giesen a =E9crit :

> Helge wrote:
>
>> This patch is already integrated into the 2.4.19-pa18
>> kernel ...
>
> Where can I get pa18? The latest on ftp.parisc-linux.org seems to be
> pa17.
I'm currently building pa18 lifimage/iso, they will be available soon.
Though I think there's no point for you in trying to find a precompiled=20=

kernel,
since IIRC precomp are built with default debian-configs, which do not=20=

enable support
for sstfb.

Therefore I think you'd better get the latest kernel source from=20
cvs.parisc-linux.org
and build it with your own options :)

Greetings,


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/=



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Hello,

I think I need some more help with this. Here's what I did:

- grabbed fresh 2.4.19-pa17 sources
- applied sstfb.c and .h patch
- set kernel options to include sst1
- compiled & installed new kernel

The new kernel seems to try to activate a Voodoo console shortly after
the "If this is the last message you see ..." warning. However, my
monitor says the frequencies are out of range and switches itself off.
The main sti console is then dead also.

Any ideas? Maybe could I try a precompiled kernel with Voodoo support?

Thanks.

Best wishes,
Tobias Giesen





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As I don't have the Voodoo card, I didn't keep the patch, but, are there
settings in the sstfb patch that can be used to define the default
frequencies?  The only other alternative will be to get a very high
frequency monitor that supports 1280x1024@72Hz. My HP A4033A monitor has
no problem with that. But my Digiview croaked on it on my SGI Octane. So
now I have to switch out between the two boxes (Octane and C160) with
the A4033A. I haven't tried my Panasonic E21. It supports 1600x1280@60
so it should handle it OK.

On Sun, 2002-09-15 at 20:17, Tobias Giesen wrote:
> Hello,
>=20
> I think I need some more help with this. Here's what I did:
>=20
> - grabbed fresh 2.4.19-pa17 sources
> - applied sstfb.c and .h patch
> - set kernel options to include sst1
> - compiled & installed new kernel
>=20
> The new kernel seems to try to activate a Voodoo console shortly after
> the "If this is the last message you see ..." warning. However, my
> monitor says the frequencies are out of range and switches itself off.
> The main sti console is then dead also.
>=20
> Any ideas? Maybe could I try a precompiled kernel with Voodoo support?
>=20
> Thanks.
>=20
> Best wishes,
> Tobias Giesen
>=20
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
--=20
James P. Kinney III   \Changing the mobile computing world/
President and CEO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney@localnetsolutions.com>
Fingerprint =3D 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7=20



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Moritz Sinn wrote:
> 
> hi,
> 
> i've got an promise PDC20268 ide controller, which i would like to use
> in my hp c360 workstation. i'm using kernel 2.4.18 (couldn't compile
> 2.4.19 and 2.4.20-pre7).
> if i compile with "Generic PCI bus-master DMA support", the kernel
> crashes when i insmod the 'ide-mod' module. it doesn't print useable
> error messages, it just doesn't react anymore.

Are you using the "apt-get source kernel-image-2.4.18-hppa"
or from kernel.org?

If the latter, that won't work.

> when i compile without dma support, i can insmod the 'ide-mod' and
> 'ide-disk' module, but it crashes when i want to insmod the
> 'ide-probe-mod' module.
> 
> would be great if someone could help me.

1) see cvs.parisc-linux.org to get the latest bits
   (or ftp.parisc-linux.org/cvs/)

2) define the following to 1 in drivers/ide/pdc202xx.c:

#define PDC202XX_DEBUG_DRIVE_INFO               0
#define PDC202XX_DECODE_REGISTER_INFO           0

  and rebuild the module with that.

3) post the console log and "ser pim" output at PDC prompt.

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:16138

Hi Tobias,

you should use a standard PC mulitfrequency monitor, as most
HP monitors are fixed frequency and won't work.

Furthermore you might search in sstfb.c for:
/*
  Default video mode .
  0 800x600@60  took from glide
  1 640x480@75  took from glide
  2 1024x768@76 std fb.mode
  3 640x480@60  glide default */
#define DEFAULT_MODE 1

and try to change the DEFAULT_MODE to 2 or 0.

Greetings,
Helge

On Monday 16 September 2002 02:17, Tobias Giesen wrote:
> Hello,
>
> I think I need some more help with this. Here's what I did:
>
> - grabbed fresh 2.4.19-pa17 sources
> - applied sstfb.c and .h patch
> - set kernel options to include sst1
> - compiled & installed new kernel
>
> The new kernel seems to try to activate a Voodoo console shortly after
> the "If this is the last message you see ..." warning. However, my
> monitor says the frequencies are out of range and switches itself off.
> The main sti console is then dead also.
>
> Any ideas? Maybe could I try a precompiled kernel with Voodoo support?
>
> Thanks.
>
> Best wishes,
> Tobias Giesen



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Xref: news.gmane.org gmane.linux.ports.parisc:16139

Hello Ryan
,

I think we have a much more basic problem, I thought
up to now. I think all bus accesses to the device 
are unsuccessfull.

Independent of the word position, I read back a 
0x0000ff00. You see this as a counter value, and
even the regs->spstat deliveres 0x0000ff00 and via
the bit operations the ID=7 results, and I thought
at the beginning, this wa correctly read out .... !

What are doing we wrong in the bus access or device
access. The MUX port can be accessed, what's the
difference here ?

Christoph


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I will be out of the office starting  09/16/2002 and will not return until 09/23/2002.

Thank you for your message. I will reply to it when I return. For urgent messages please contact Jos de Jong at +31 24 353 2991.



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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: [parisc-linux] HP-PB
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Hey all,

I know that there is a quest for information about the HP-PB interfaces
in order to get them functional in Linux.  So I was curious about what
kind of information you guys needed and I'm offering to try and find
that information.  Not sure why I feel like I can find the information
where others have failed, but I'd like to try so fire away...

derek

__________________________________________________
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From: Rod Smart <snaketails@optushome.com.au>
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Subject: [parisc-linux] Serial Terminal on C-180 system
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    Hello again.

    Last time I was here I was asking about how to get the C-180 to use
Serial Terminal, I havn't been able to get it talking to the other Linux
or wincrash system, so I would like to transfer it back to Video mode
(turn off Serial Terminal.

    How do I do this when I cannot see the screen ?



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: [parisc-linux] New status MUX on E55
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--------------337BA726D358AC462F45C980
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Hello Ryan,

I added the handling of the multi ports. So for example the
poll routine walks to all 8 devices (if opened), the
handling of the refcount is now per line, etc....

I give you the patch to see my changes, ignore my debug
print outs, and ignore the fact, that the polling routine
is running on 1.5 seconds !

We already have the state, that the HP machine completely
dies. Even no interrupts are working, no `ping' is answered,
etc...

I had seen an interesting effect:

mux_drv_poll: 0
mux_drv_poll:    done
mux_write: <hallo
>(5) to 0xfff788bc
68 61 6c 6c 6f 
mux_write:    before mux_flush_buffer()
mux_drv_poll: 0
mux_drv_poll: 1
mux_drv_poll:    done
mux_write: <HIJKLMNOPQRSTUVWXYZ>(1) to 0xfff788bc
e0 
mux_write:    before mux_flush_buffer()

A `echo hallo > /dev/ttyB1' has produces this log.
After the mux_write() called with the string, the mux_write
is called a second time sending a 'e0' ???????
The first mux_write() is not finished (as no
`mux_write:   done' is displayed), the second blocks
the machine completely on the max_flush_buffer() call.
So the first writer block there, waiting in the endless
loop ! The second blocks up the whole machine ...

Further, NO OUTPUT were seen on the serial line of port
1 (not 0 !). Is there something, which is forgotten for
the initialization ? Perhaps something done for port 0
by the PDC code ?

Is this a common problem, as on the SPIFI, that there is
a general wrong access method to those devices ?

Bye
Christoph



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Index: drivers/char/mux.c
===================================================================
RCS file: /var/cvs/linux/drivers/char/mux.c,v
retrieving revision 1.3
diff -u -r1.3 mux.c
--- drivers/char/mux.c	11 Sep 2002 07:05:56 -0000	1.3
+++ drivers/char/mux.c	16 Sep 2002 22:59:48 -0000
@@ -56,7 +56,7 @@
 #define MUX_MIN_FREE_SIZE 32
 
 #define MUX_FIFO_DRAIN_DELAY 1
-#define MUX_POLL_DELAY (30 * HZ / 1000)
+#define MUX_POLL_DELAY (1500 * HZ / 1000)
 
 #define IO_COMMAND_REG_OFFSET 0x30
 #define IO_STATUS_REG_OFFSET 0x34
@@ -69,12 +69,13 @@
 #define MUX_STATUS(status) ((status & 0xF000) == 0x8000)
 #define MUX_BREAK(status) ((status & 0xF000) == 0x2000)
 
-static int mux_drv_refcount; /* = 0 */
+#define NR_PORTS 8
+static int global_mux_drv_refcount; /* = 0 */
+static int mux_drv_refcount [NR_PORTS]; /* = 0 */
 static struct tty_driver mux_drv_driver;
-static struct async_struct *mux_drv_info;
+static struct async_struct *mux_drv_info [NR_PORTS];
 static struct timer_list mux_drv_timer;
 
-#define NR_PORTS 1
 static struct tty_struct *mux_drv_table[NR_PORTS];
 static struct termios *mux_drv_termios[NR_PORTS];
 static struct termios *mux_drv_termios_locked[NR_PORTS];
@@ -127,6 +128,13 @@
 			break_pressed = 0;
 		}
 #endif
+		if ((data & 0xff) == 0x1c)
+		{
+                    extern void machine_restart (char *);
+                    
+                    printk ("\n\n<<console machine reset>>\n\n");
+                    machine_restart (NULL);
+		}
 
 		tty->flip.flag_buf_ptr++;
 		tty->flip.char_buf_ptr++;
@@ -146,13 +154,19 @@
 static void
 mux_drv_poll(unsigned long unused)
 {
-	struct async_struct *info = mux_drv_info;
+	struct async_struct *info;
+	int line;
 
-	if(info && info->tty && mux_drv_refcount) {
+	for (line = 0; line < NR_PORTS; line++)
+	{
+	    info = mux_drv_info [line];
+	    if(info && info->tty && mux_drv_refcount [line]) {
+		/* CP */ printk ("%s: %d\n", __FUNCTION__, line);
 		mux_read_fifo(info);
 		info->last_active = jiffies;
+	    }
 	}
-
+	/* CP */ printk ("%s:    done\n", __FUNCTION__);
 	mod_timer(&mux_drv_timer, jiffies + MUX_POLL_DELAY);
 }
 
@@ -224,6 +238,21 @@
 	unsigned long iomem_base = 
 		(unsigned long)((struct async_struct *)tty->driver_data)->iomem_base;
 
+	/* CP */ 
+	{
+	    int i, line = ((struct async_struct *)tty->driver_data)->line;
+
+	    if (line > 0)
+	    {
+		printk ("%s: <%s>(%d) to 0x%08x\n", __FUNCTION__, 
+			buf, count, iomem_base + IO_DATA_REG_OFFSET);
+		
+		for (i = 0; i < count; i++)
+		    printk ("%02x ", buf [i]);
+		printk ("\n");
+	    }
+	}
+
 	while (count) {
 		size = mux_write_room(tty);
 		len = (size < count) ? size : count;
@@ -245,8 +274,10 @@
 			__raw_writel(*buf_p++, iomem_base + IO_DATA_REG_OFFSET);
 		}
 	}
+	/* CP */ printk ("%s:    before mux_flush_buffer()\n", __FUNCTION__);
 
 	mux_flush_buffer(tty);
+	/* CP */ printk ("%s:    done\n", __FUNCTION__);
 	return ret;
 }
 
@@ -402,9 +433,11 @@
 mux_close(struct tty_struct *tty, struct file *filp)
 {
 	struct async_struct *info = (struct async_struct *) tty->driver_data;
+	int line = info->line;
 
-	mux_drv_refcount--;
-	if (mux_drv_refcount > 0)
+	mux_drv_refcount [line]--;
+	global_mux_drv_refcount--;
+	if (mux_drv_refcount [line] > 0)
 		return;
 
 	info->flags |= ASYNC_CLOSING;
@@ -434,7 +467,7 @@
 	tty->closing = 0;
 	info->event = 0;
 	info->tty = 0;
-	mux_drv_info = NULL;
+	mux_drv_info [line] = NULL;
 	if (info->blocked_open) {
 		if (info->close_delay) {
 			set_current_state(TASK_INTERRUPTIBLE);
@@ -473,7 +506,8 @@
 	info->port = 0;
 	info->flags = 0;
 	info->io_type = 0;
-	info->iomem_base = (void *)(hpa + MUX_OFFSET);
+	info->iomem_base = (void *)(hpa + MUX_OFFSET + 
+				    (line * MUX_LINE_OFFSET));
 	info->iomem_reg_shift = 0;
 	info->xmit_fifo_size = MUX_FIFO_SIZE;
 	info->line = line;
@@ -514,11 +548,12 @@
 
 	tty->driver_data = info;
 	info->tty = tty;
-	mux_drv_info = info;
+	mux_drv_info [line] = info;
 	info->tty->low_latency = 0;
 	info->session = current->session;
 	info->pgrp = current->pgrp;
-	mux_drv_refcount++;
+	mux_drv_refcount [line]++;
+	global_mux_drv_refcount++;
 	return 0;
 }
 
@@ -533,7 +568,8 @@
 mux_probe(struct parisc_device *dev)
 {
 	if(hpa) {
-		printk(KERN_INFO "Serial MUX driver already registered, skipping additonal MUXes for now.\n");
+		printk(KERN_INFO "Serial MUX driver already registered, "
+		       "skipping additonal MUXes for now.\n");
 		return 1;
 	}
 
@@ -564,7 +600,7 @@
 	mux_drv_driver.init_termios.c_cflag =
 	    B9600 | CS8 | CREAD | HUPCL | CLOCAL;
 	mux_drv_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
-	mux_drv_driver.refcount = &mux_drv_refcount;
+	mux_drv_driver.refcount = &global_mux_drv_refcount;
 	mux_drv_driver.table = mux_drv_table;
 	mux_drv_driver.termios = mux_drv_termios;
 	mux_drv_driver.termios_locked = mux_drv_termios_locked;
@@ -627,7 +663,8 @@
 {
 	int status = tty_unregister_driver(&mux_drv_driver);
 	if(status) {
-		printk("MUX: failed to unregister the Serial MUX driver (%d)\n", status);
+		printk("MUX: failed to unregister the "
+		       "Serial MUX driver (%d)\n", status);
 	}
 }
 

--------------337BA726D358AC462F45C980--



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As I understand it, if you unplug the keyboard and mouse,
then the system will boot to serial console. I think you
just plug the kb, mouse, and monitor in and you will get
a graphics console. You might have to set something in the
firmware also, can't remember.

- Doug



Rod Smart wrote:
>     Hello again.
> 
>     Last time I was here I was asking about how to get the C-180 to use
> Serial Terminal, I havn't been able to get it talking to the other Linux
> or wincrash system, so I would like to transfer it back to Video mode
> (turn off Serial Terminal.
> 
>     How do I do this when I cannot see the screen ?
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 





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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: Re: [parisc-linux] Serial Terminal on C-180 system
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The C180 will output a signal to the serial port whenever it doesn't
detect a keyboard.  It doesn't need to be turned off.  So, plug in your
monitor, mouse, and keyboard.  You should get something off you
graphics card unless you really messed up the graphics config in the
boot handler menus.  If you don't get anything you will problably need
to connect a serial console to your machine that will emulate vt100.  


derek

--- Rod Smart <snaketails@optushome.com.au> wrote:
>     Hello again.
> 
>     Last time I was here I was asking about how to get the C-180 to
> use
> Serial Terminal, I havn't been able to get it talking to the other
> Linux
> or wincrash system, so I would like to transfer it back to Video mode
> (turn off Serial Terminal.
> 
>     How do I do this when I cannot see the screen ?
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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Subject: [parisc-linux] Re: Status SPIFI SCSI
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Hello Christoph,


On Sun, 2002-09-15 at 17:25, Christoph Plattner wrote:
> Hallo Ryan,
> 
> here some comments on my non-successful work so far.
> 
> I did code reading and used debug instrumented code
> to understand the structure behind the linux SCSI
> handling.
> 
> Further I studied the NetBSD code. 
> 
> One major point: We do not get any interrupts.
> For my analysis I only had a look on the first
> steps of SCSI initialization, so this was the
> INQUERY command.

This is where I am also currently stuck :(  The
ESIEE guys are going to hook up an analyzer to the
box and see if the target device is getting the command
(ie... did we send the command correctly to the device)
or if the device returns a command (do we catch the
command the device is returning).  I have been studyting
the setup routines in the HP-UX driver and I believe
I have the chip initialized properly ... but I am not
sure why I am not getting any interrupts.   Hopefully
between ESIEE, you, and myself and anyone else
interested we can figure this out.


> The spifi command routine is called correctly,
> but it has a wrong logical implementation. As I 
> have seen on other (older) linux driver, the
> xxx_command() has to block, after the command was
> successful completed by interrupt. But the interrupt
> never comes !! Even a "long" delay for simulating
> blocking does not solve this problem.

That is highly possible.  The driver skeleton is just
a test harness for me right now.  I am just trying to see
what I can get returned from the spifi chip (that is why
most of the functions are stubs with printk.  Once I see 
an interrupt come in, I'll start working on putting that piece
togeather.

> From base of the NetBSD code, I cannot follow your
> code resetting the spifi subsystem. I think you have
> this from HP-UX code. Especially the 
> 
>   __raw_writel(CMD_RESET, dev->hpa + IO_MODULE_COMMAND);

Yes, this is part of the initizlization from the HP-UX
driver.  The Loquix chip sits between the HP-PB bus, and
the spifi scsi chip.  According to the HP-UX driver, the 
Loquix chip also required some setup.  Once again, I
do not actually have the Loquix documentation, but I might
have a lead on it.  Will have to wait and see if that lead
pans out.

> Is this a reset method via the IO PDC address space
> common for all HP devices ? In the NetBSD the full
> reset is done only via the `auxctrl' register, which
> you use for releasing the reset state.

I am not sure about all the HP devices.  It might be an iodc
specific call.  I will have to look at the driver again,
but that might reset the loquix chip *shrug* I'll take
a look and see what I can find.

> So we have a principal problem here, not having correct
> access to the spifi subsystem. Except: the SCSI-ID is
> read out correctly, I think, as ...
>
> SCSI subsystem driver Revision: 1.00
> DEBUG: 0xfff74c00
> Device: Sahp Baat Kiuh SCSI
> scsi0 : SPIFI SCSI: scsi_id: 7 IRQ: 34 type: SPIFI-3 (SE) parity
> checking: enabled
> 
> ... is reported !

That is where I am also. We actually read the type SPIFI-3 (SE) for the
SKUNK card, and SPIFI-3 (DF) for the wizard (16-bit) card.  I have
tested this on both cards so I know it works.  I am convinced we are
reading the correct information from the card, but what I am not
convinced of is that we have it setup properly yet :)  The problem is I 
do not know what I am missing yet :(

> Is everything around the interrupt subsystem setup correctly ?
> The `cat /proc/interrupts' tells ...
> 
> bash# cat /proc/interrupts 
>           CPU396195552 
>  32:     124925      PARISC-CPU  timer
>  33:      19767      PARISC-CPU  lasi
>  34:          0      PARISC-CPU  spifi
>  87:      19767            Lasi  i82596
> 
> ... which is no surprise ... !
>

I do not think the fact the interrupt is registered is very infomative,
I think you can register an interrupt for device even if it doesn't have
an real irq assocaitated with it (ie... the serial mux).  


Yeah, thanks for looking at it ... we will have to beat on it some more
and see what we can find.  Hopefully the ESIEE guys will be able to
provide us with some good information!

Thanks

- Ryan


> Till soon,
> Christoph P.
> 
> 
> 
> 
> 
> -- 
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at
> 




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On Sun, 2002-09-15 at 17:37, Christoph Plattner wrote:
> Thanks for that !
> 
> But I think, my Linux code dose the same !!!
> 
> 	info->iomem_base = (void *)(hpa + MUX_OFFSET + 
> 				    (line * MUX_LINE_OFFSET));
> 
> This info->iomem_base is used by all accesses, the 
> registers of i/o are defined by Ryan as:
> 
> #define IO_COMMAND_REG_OFFSET 0x30
> #define IO_STATUS_REG_OFFSET 0x34
> #define IO_DATA_REG_OFFSET 0x3c
> #define IO_DCOUNT_REG_OFFSET 0x40
> #define IO_UCOUNT_REG_OFFSET 0x44
> #define IO_FIFOS_REG_OFFSET 0x48
> 
> So the offset of 0x30 is inside those macros.
> 
> An example of an access:
> 
> 		data = __raw_readl((unsigned long)info->iomem_base 
> 				   + IO_DATA_REG_OFFSET);
> 
> ... reading characters from the input buffers.
> 
> Any further idea ?
> 
> Ryan, you mentioned problems concerning missing locks, but
> I cannot think about this. Those devices should be controlled
> independent, am I wrong ?

Locks was just an idea of why it might now work.  Nothing suggested that
yet.  I found the MPD, now I just need to make a cable for it to hook up
to a different system and test with.  Hopefully will get this done this
week and I'll take a look at it :)

> I hope, we will solve this all (all means including SPIFI
> SCSI driver too !).
> 
> Christoph




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Ryan Bradetich wrote:
> >   __raw_writel(CMD_RESET, dev->hpa + IO_MODULE_COMMAND);

This looks like something will be documented in the IO ACD.
CMD_RESET is an architecture defined command PA IO devices
are required to accept.

> > Is this a reset method via the IO PDC address space
> > common for all HP devices?

I believe so. That doesn't mean *all* of them implement
it properly or even need it.

> That is where I am also. We actually read the type SPIFI-3 (SE) for the
> SKUNK card, and SPIFI-3 (DF) for the wizard (16-bit) card.

I'm pretty sure wizard card used SPIFI-4.


hth,
grant


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Hi Rod,

I guess Your problem is, that Your C180 graphic is not sending an usable 
signal to Your Monitor. You need to plug in keyboard an monitor. And a few 
seconds after switching on press the TAB key -- the workstation will change 
the video mode several times with about 3 seconds delay. Press ENTER if the 
mode is okay for You. (I hope it's correct in my mind)

I don't know whether or not You need do some changes via serial first. 
(Switch console with "pa con graphic(0)" perhaps)

On Tuesday 17 September 2002 01:00, you wrote:
>     Hello again.
>
>     Last time I was here I was asking about how to get the C-180 to use
> Serial Terminal, I havn't been able to get it talking to the other Linux
> or wincrash system, so I would like to transfer it back to Video mode
> (turn off Serial Terminal.
>
>     How do I do this when I cannot see the screen ?


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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: [parisc-linux] B132L+ crash with mpg123
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Hi fellows !

I've been experiencing several crashes on B132L+ while playing mp3s with
mpg123, the box was then running 2.4.18-pa21.
I've tried recently with 2.4.19-pa18, and it crashed again.
The crash happens at random time, on random files.

What's worth mentionning is that files are played from a remote NFS
filesystem. (BTW, the console shows "svc: unknown version (0)" when
mounting the NFS system).

So I took my little fingers and I reproduced here what the console
showed me. I hope there is now mistake in this "hand dump", though I
read it twice ;)

HTH,


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Kernel Fault: Code=15 regs=11ddc640 (Addr=00277e00)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011000000000000001111 Not tainted
r00-03  00000000 00000023 101feac4 00000200
r04-07  1035c1fc fffff000 1035c010 00000000
r08-11  1035c1fc 00001200 1035c010 1035c010
r12-15  00029f00 1035c25c faf01590 00017000
r16-19  00028678 00028678 00002000 00000e00
r20-23  00001000 00000000 00000001 00001200
r24-27  000001ff 00029f01 00277e00 10290010
r28-31  00000000 ffffffff 11ddc640 101fea8c
sr0-3   00000000 00000246 00000000 00000246
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 0000000 IAOQ: 10263c78 10263c70
   IIR: 0f411222    ISR: 00000000   IOR: 00277e00
   CPU:        0   CR30: 11ddc000  CR31: 10338000
   ORIG_R28: 11ddc7b8





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Subject: Re: [parisc-linux] B132L+ crash with mpg123
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Thibaut VARENE wrote:
> I've been experiencing several crashes on B132L+ while playing mp3s with
> mpg123, the box was then running 2.4.18-pa21.

Harmony driver definitely has some bugs.
My B180 is stable until I listen to MP3s as well.
System crashes after ~1 hour of play.

> What's worth mentionning is that files are played from a remote NFS
> filesystem. (BTW, the console shows "svc: unknown version (0)" when
> mounting the NFS system).

I'm doing everything local.

> Kernel Fault: Code=15 regs=11ddc640 (Addr=00277e00)
> 
>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000011000000000000001111 Not tainted
> r00-03  00000000 00000023 101feac4 00000200
...
> IASQ: 00000000 0000000 IAOQ: 10263c78 10263c70
...
what symbols do 101feac4 and 10263c78 refer to?

grant


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Subject: Re: [parisc-linux] B132L+ crash with mpg123
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On Tue, Sep 17, 2002 at 11:00:01AM -0600, Grant Grundler wrote:
> > Kernel Fault: Code=15 regs=11ddc640 (Addr=00277e00)
> > 
> >       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > PSW: 00000000000011000000000000001111 Not tainted
> > r00-03  00000000 00000023 101feac4 00000200
> ...
> > IASQ: 00000000 0000000 IAOQ: 10263c78 10263c70
> ...
> what symbols do 101feac4 and 10263c78 refer to?

10263c78 is in copy_from_user, 101feac4 is in harmony_audio_write().
the only point at which we call copy_from_user is:

                /* Copy the page to an aligned buffer */
                copy_from_user(played_buf.addr + (HARMONY_BUF_SIZE*buf_to_fill)
					+ harmony.play_offset,
				buffer+count, frame_size);


-- 
Revolutions do not require corporate support.


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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Fwd: A500 hang up 2.4.19-pa18 (lot of) details
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This a forward to the p-l.o m-l about hang-up with 2.4.19-pa18 kernel, 
that occurs when playing around with setiathome. See the transcript for 
details.

info taken from System.map:

mkhppa3:~# ./a.out 000000001015c620
0x1015c620 kmem_cache_free+a8
mkhppa3:~# ./a.out 000000001015bfb0
0x1015bfb0 free_block+48

BTW, you'll notice that the second CPU timed-out, instead of dumping 
when the first one died...

HTH


Thibaut VARENE wrote:
> 
> 
> I was able to reproduce the same hang, with a little variant:
> the first time i hanged the box, i launched both seti one after the 
> other (i.e., "cd seti1; ./setiathome &" and then "cd ../seti2; 
> ./setiathome &") and the box crashed when firing the second one.
> 
> Here i started one. then did some small commands like "ls", "top" and 
> so, and then started the second one. It didn't crash. I did a top, ls, 
> ps -ef, no pb.
> Then i decided to stop both setis (killall setiathome), and start one 
> again. It crahsed.
> 
> See the following session transcript:
> 
> Booting...
> Boot IO Dependent Code (IODC) revision 1
> 
> 
> HARD Booted.
> palo ipl 0.97 root@c3k Tue Nov 27 14:51:48 MST 2001
> Information: Boot device can't seek past 2Gb (ignore next 
> error).byteio_read: seekread() returned -1 expected 2048
> 
> Partition Start(MB) End(MB) Id Type
> 1               1      15   f0 Palo
> 2              16     503   82 swap
> 3             504    2887   83 ext2
> 
> PALO(F0) partition contains:
>     0/vmlinux64 3990942 bytes @ 0x44000
> 
> Information: No console specified on kernel command line. This is normal.
> PALO will choose the console currently  used by firmware (serial).
> Command line for kernel: 'root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102'
> Selected kernel: /boot/vmlinux from partition 3
> ELF64 executable
> Entry 00100000 first 00100000 n 4
> Segment 0 load 00100000 size 2448040 mediaptr 0x1000
> Segment 1 load 00356000 size 1043344 mediaptr 0x257000
> Segment 2 load 00458000 size 431368 mediaptr 0x356000
> Segment 3 load 004c4000 size 49152 mediaptr 0x3c0000
> Branching to kernel entry point 0x00100000.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org
> 
> Linux version 2.4.19-pa18 (root@mkhppa3) (gcc version 3.0) #1 SMP Sun 
> Sep 15 18:21:12 CEST 2002
> FP[0] enabled: Rev 1 Model 16
> The 64-bit Kernel has started...
> Determining PDC firmware type: 64 bit PAT.
> model 00005d50 00000491 00000000 00000001 5cbb53d8 100000f0 00000008 
> 000000b2 000000b2
> vers  00000301
> CPUID vers 18 rev 11 (0x0000024b)
> capabilities 0x1
> model 9000/800/A500-5X
> Total Memory: 1024 Mb
> pagetable_init
> On node 0 totalpages: 262144
> zone(0): 262144 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> Kernel command line: root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102
> Calibrating delay loop... 1097.72 BogoMIPS
> Memory: 1019664k available
> Dentry cache hash table entries: 131072 (order: 9, 2097152 bytes)
> Inode cache hash table entries: 65536 (order: 8, 1048576 bytes)
> Mount-cache hash table entries: 16384 (order: 6, 262144 bytes)
> Buffer-cache hash table entries: 65536 (order: 7, 524288 bytes)
> Page-cache hash table entries: 262144 (order: 9, 2097152 bytes)
> Searching for devices...
> Found devices:
> 1. Crescendo 550 (0) at 0xfffffffffffa0000 [160], versions 0x5d5, 0x0, 0x4
> 2. Crescendo 550 (0) at 0xfffffffffffa2000 [162], versions 0x5d5, 0x0, 0x4
> 3. Astro BC Runway Port (12) at 0xfffffffffed00000 [0], versions 0x582, 
> 0x0, 0xb
> 4. Elroy PCI Bridge (13) at 0xfffffffffed30000 [0/0], versions 0x782, 
> 0x0, 0xa
> 5. Elroy PCI Bridge (13) at 0xfffffffffed34000 [0/2], versions 0x782, 
> 0x0, 0xa
> 6. Elroy PCI Bridge (13) at 0xfffffffffed38000 [0/4], versions 0x782, 
> 0x0, 0xa
> 7. Elroy PCI Bridge (13) at 0xfffffffffed3c000 [0/6], versions 0x782, 
> 0x0, 0xa
> 8. Memory (1) at 0xfffffffffed08000 [8], versions 0x9b, 0x0, 0x9
> CPU(s): 2 x PA8600 (PCX-W+) at 550.000000 MHz
> SBA found Astro 2.1 at 0xfffffffffed00000
> lba version TR4.0 (0x5) found at 0xfffffffffed30000
> lba range[2] : ignoring GMMIO (0xfffffff804000000)
> lba version TR4.0 (0x5) found at 0xfffffffffed34000
> lba range[2] : ignoring GMMIO (0xfffffff904000000)
> lba version TR4.0 (0x5) found at 0xfffffffffed38000
> lba range[2] : ignoring GMMIO (0xfffffffa04000000)
> lba version TR4.0 (0x5) found at 0xfffffffffed3c000
> lba range[2] : ignoring GMMIO (0xfffffffb04000000)
> POSIX conformance testing by UNIFIX
> FP[1] enabled: Rev 1 Model 16
> SMP: Total 2 of 2 processors activated (2195.46 BogoMIPS noticed).
> Waiting on wait_init_idle (map = 0x2)
> All processors have done init_idle
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Initializing RT netlink socket
> Soft power switch support not available.
> Performance monitoring counters enabled for Crescendo 550
> Starting kswapd
> Journalled Block Device driver loaded
> Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
> pty: 256 Unix98 ptys configured
> Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ 
> SERIAL_PCI enabled
> Redundant entry in serial pci_table.  Please send the output of
> lspci -vv, this message (103c,1048,103c,1049)
> and the manufacturer and name of serial board or modem board
> to serial-pci-info@lists.sourceforge.net.
> ttyS00 at iomem 0xfffffffff8000000 (irq = 132) is a 16550A
> ttyS01 at iomem 0xfffffffff8000008 (irq = 132) is a 16550A
> ttyS02 at iomem 0xfffffffff8000010 (irq = 132) is a 16550A
> Redundant entry in serial pci_table.  Please send the output of
> lspci -vv, this message (103c,1048,103c,104a)
> and the manufacturer and name of serial board or modem board
> to serial-pci-info@lists.sourceforge.net.
> ttyS03 at iomem 0xfffffffff8006000 (irq = 133) is a 16550A
> ttyS04 at iomem 0xfffffffff8006008 (irq = 133) is a 16550A
> Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> loop: loaded (max 8 devices)
> Linux Tulip driver version 0.9.15-pre11 (May 11, 2002)
> tulip0: no phy info, aborting mtable build
> tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
> eth0: Digital DS21143 Tulip rev 65 at 0xfffffffff8007000, 
> 00:30:6E:0C:8A:8F, IRQ 128.
> SCSI subsystem driver Revision: 1.00
> sym53c8xx: at PCI bus 0, device 2, function 0
> sym53c8xx: 53c875 detected
> sym53c8xx: at PCI bus 0, device 2, function 1
> sym53c8xx: 53c875 detected
> sym53c8xx: at PCI bus 0, device 1, function 0
> sym53c8xx: setting PCI_COMMAND_INVALIDATE (fix-up)
> sym53c8xx: 53c896 detected
> sym53c8xx: at PCI bus 0, device 1, function 1
> sym53c8xx: setting PCI_COMMAND_INVALIDATE (fix-up)
> sym53c8xx: 53c896 detected
> sym53c875-0: rev 0x14 on pci bus 0 device 2 function 0 irq 130
> sym53c875-0: ID 7, Fast-10, Parity Checking
> sym53c875-1: rev 0x14 on pci bus 0 device 2 function 1 irq 131
> sym53c875-1: ID 7, Fast-20, Parity Checking
> sym53c896-2: rev 0x7 on pci bus 0 device 1 function 0 irq 129
> sym53c896-2: ID 7, Fast-20, Parity Checking
> sym53c896-2: handling phase mismatch from SCRIPTS.
> sym53c896-3: rev 0x7 on pci bus 0 device 1 function 1 irq 130
> sym53c896-3: ID 7, Fast-20, Parity Checking
> sym53c896-3: handling phase mismatch from SCRIPTS.
> scsi0 : sym53c8xx-1.7.3c-20010512
> scsi1 : sym53c8xx-1.7.3c-20010512
> scsi2 : sym53c8xx-1.7.3c-20010512
> scsi3 : sym53c8xx-1.7.3c-20010512
>   Vendor: SEAGATE   Model: ST39103LC         Rev: HP02
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Attached scsi disk sda at scsi1, channel 0, id 15, lun 0
> sym53c875-1-<15,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
> SCSI device sda: 17783112 512-byte hdwr sectors (9105 MB)
> Partition check:
>  sda: sda1 sda2 sda3 sda4 < sda5 sda6 >
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP
> IP: routing cache hash table of 1024 buckets, 48Kbytes
> TCP: Hash tables configured (established 32768 bind 65536)
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> kjournald starting.  Commit interval 5 seconds
> EXT3-fs: mounted filesystem with ordered data mode.
> VFS: Mounted root (ext3 filesystem) readonly.
> Freeing unused kernel memory: 421k freed
> INIT: version 2.84 booting
> Activating swap.
> Adding Swap: 499704k swap-space (priority -1)
> Checking root file system...
> fsck 1.27 (8-Mar-2002)
> /dev/sda3: clean, 57492/305216 files, 321970/610304 blocks
> EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,3), internal journal
> System time was Mon Sep 16 10:11:13 UTC 2002.
> Setting the System Clock using the Hardware Clock as reference...
> System Clock set. System local time is now Mon Sep 16 10:10:05 UTC 2002.
> Calculating module dependencies... depmod: Can't open 
> /lib/modules/2.4.19-pa18/modules.dep for writing
> done.
> Loading modules:
> modprobe: Can't open dependencies file 
> /lib/modules/2.4.19-pa18/modules.dep (No such file or directory)
> Checking all file systems...
> fsck 1.27 (8-Mar-2002)
> /dev/sda5: clean, 104123/366528 files, 553485/732412 blocks
> /dev/sda6 has been mounted 35 times without being checked, check forced.
> /dev/sda6: 132287/376096 files (6.2% non-contiguous), 695541/751356 blocks
> Setting kernel variables.
> Mounting local filesystems...
> kjournald starting.  Commit interval 5 seconds
> EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,5), internal journal
> EXT3-fs: mounted filesystem with ordered data mode.
> /dev/sda5 on /home type ext3 (rw)
> kjournald starting.  Commit interval 5 seconds
> EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,6), internal journal
> EXT3-fs: mounted filesystem with ordered data mode.
> /dev/sda6 on /work type ext3 (rw)
> Cleaning: /etc/network/ifstate.
> Setting up IP spoofing protection: rp_filter.
> Configuring network interfaces: done.
> Starting portmap daemon: portmap.
> Loading the saved-state of the serial devices...
> Cannot set serial info: Device or resource busy
> /dev/ttyS0 at 0x0000 (irq = 132) is a 16550A
> /dev/ttyS1 at 0x0500 (irq = 133) is a 16550A
> /dev/ttyS2 at 0x0000 (irq = 132) is a 16550A
> /dev/ttyS3 at 0x0000 (irq = 133) is a 16550A
> 
> Setting the System Clock using the Hardware Clock as reference...
> System Clock set. Local time: Mon Sep 16 12:11:23 CEST 2002
> 
> Cleaning: /tmp /var/lock /var/run.
> eth0: Setting half-duplex based on MII#1 link partner capability of 0021.
> Initializing random number generator... done.
> Recovering nvi editor sessions... done.
> INIT: Entering runlevel: 2
> Starting system log daemon: syslogd.
> Starting kernel log daemon: klogd.
> Starting NFS common utilities: statd.
> Starting internet superserver: inetd.
> Starting OpenBSD Secure Shell server: sshd.
> Starting NTP server: ntpd.
> Starting NFS servers: nfsd mountd.
> Starting periodic command scheduler: cron.
> 
> Debian GNU/Linux testing/unstable mkhppa3 ttyS0
> 
> mkhppa3 login: varenet
> Password:
> Last login: Mon Sep 16 12:02:45 2002 from grobluk.esiee.fr on pts/0
> Linux mkhppa3 2.4.19-pa18 #1 SMP Sun Sep 15 18:21:12 CEST 2002 parisc64 
> unknown unknown GNU/Linux
> 
> Most of the programs included with the Debian GNU/Linux system are
> freely redistributable; the exact distribution terms for each program
> are described in the individual files in /usr/share/doc/*/copyright
> 
> Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
> permitted by applicable law.
> [varenet@mkhppa3 ~]$ cd seti
> seti1
> seti2
> setiathome-3.03.hppa-parisc-palinux.tar
> [varenet@mkhppa3 ~]$ cd seti1/
> [varenet@mkhppa3 ~/seti1]$ ./setiathome &
> [1] 185
> [varenet@mkhppa3 ~/seti1]$ >>DEBUG : Use LOCKFSETI@home client.
> Platform: hppa-parisc-palinux
> Version: 3.03
> 
> SETI@home is sponsored by individual donors around the world.
> If you'd like to contribute to the project,
> please visit the SETI@home web site at
> http://setiathome.ssl.berkeley.edu.
> The project is also sponsored by the Planetary Society,
> the University of California, Sun Microsystems, Paramount Pictures,
> Fujifilm Computer Products, Informix, Engineering Design Team Inc,
> The Santa Cruz Operation (SCO), Intel, Quantum Corporation,
> and the SETI Institute.
> 
> SETI@home was developed by David Gedye (Founder),
> David Anderson (Director), Dan Werthimer (Chief Scientist),
> Leonard Chung, Hiram Clawson, Jeff Cobb, Charles Congdon, Charlie Fenton,
> Kyle Granger, Eric Heien, Mike Hill, Michael Kang, Eric Korpela,
> Matt Lebofsky, Peter Leiser, Brad Silen, Woody Sullivan, and Adam Wight.
> 
> Scanning data file
> Data Info:
> Sky coordinates:  1.605 R.A.,  8.090 Dec
> Recorded on:  2452319.35352 (Wed Feb 13 20:29:04 2002)
> Source: Arecibo Radio Observatory
> Base Frequency: 1.421201172 GHz
> Found data file: yes. Found result header file: yes.
> Scanning result header file.
> Beginning analysis...
>         (This is the last message displayed while the client works.
>         To see progress messages between now and completion of
>         processing, operate the client with the -verbose option.
>         You can also see the progress of the client by looking at
>  12:11:58 up 3 min,  1 user,  load average: 0.74, 0.48, 0.19
> 23 processes: 21 sleeping, 2 running, 0 zombie, 0 stopped
> CPU states:   0.1% user,   0.9% system,  48.1% nice,  50.9% idle
> Mem:   1020088K total,   101308K used,   918780K free,     1468K buffers
> Swap:   499704K total,        0K used,   499704K free,     9792K cached
> 
>   PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
>   185 varenet   18   1 13772  13M   376 R N  97.4  1.3   0:11 setiathome
>   187 varenet   12   0  1128 1132   912 R     0.7  0.1   0:00 top
>     1 root       9   0   612  616   520 S     0.0  0.0   0:07 init
>     2 root       9   0     0    0     0 SW    0.0  0.0   0:00 keventd
>     3 root      19  19     0    0     0 SWN   0.0  0.0   0:00 
> ksoftirqd_CPU0
>     4 root      18  19     0    0     0 SWN   0.0  0.0   0:00 
> ksoftirqd_CPU1
>     5 root       9   0     0    0     0 SW    0.0  0.0   0:00 kswapd
>     6 root       9   0     0    0     0 SW    0.0  0.0   0:00 bdflush
>     7 root       9   0     0    0     0 SW    0.0  0.0   0:02 kupdated
>     8 root       9   0     0    0     0 SW    0.0  0.0   0:00 kjournald
> 
>    66 root       9   0     0    0     0 SW    0.0  0.0   0:00 kjournald
>    67 root       9   0     0    0     0 SW    0.0  0.0   0:00 kjournald
>    90 daemon     9   0   564  564   452 S     0.0  0.0   0:00 portmap
>   146 root       9   0  1004 1004   840 S     0.0  0.0   0:00 syslogd
>   149 root       9   0  1424 1424   508 S     0.0  0.1   0:00 klogd
>   153 root       9   0   840  840   712 S     0.0  0.0   0:00 rpc.statd
> 
> [varenet@mkhppa3 ~]$ cd seti2/
> [varenet@mkhppa3 ~/seti2]$ ./setiathome &
> [2] 188
> [varenet@mkhppa3 ~/seti2]$ >>DEBUG : Use LOCKFSETI@home client.
> Platform: hppa-parisc-palinux
> Version: 3.03
> 
> SETI@home is sponsored by individual donors around the world.
> If you'd like to contribute to the project,
> please visit the SETI@home web site at
> http://setiathome.ssl.berkeley.edu.
> The project is also sponsored by the Planetary Society,
> the University of California, Sun Microsystems, Paramount Pictures,
> Fujifilm Computer Products, Informix, Engineering Design Team Inc,
> The Santa Cruz Operation (SCO), Intel, Quantum Corporation,
> and the SETI Institute.
> 
> SETI@home was developed by David Gedye (Founder),
> David Anderson (Director), Dan Werthimer (Chief Scientist),
> Leonard Chung, Hiram Clawson, Jeff Cobb, Charles Congdon, Charlie Fenton,
> Kyle Granger, Eric Heien, Mike Hill, Michael Kang, Eric Korpela,
> Matt Lebofsky, Peter Leiser, Brad Silen, Woody Sullivan, and Adam Wight.
> 
> Scanning data file
> Data Info:
> Sky coordinates:  4.859 R.A., 18.010 Dec
> Recorded on:  2452425.22882 (Thu May 30 17:29:29 2002)
> Source: Arecibo Radio Observatory
> Base Frequency: 1.420849609 GHz
> Found data file: yes. Found result header file: yes.
> Scanning result header file.
>  12:12:37 up 4 min,  1 user,  load average: 1.20, 0.63, 0.25
> 24 processes: 21 sleeping, 3 running, 0 zombie, 0 stopped
> CPU states:   0.1% user,   1.1% system,  98.8% nice,   0.0% idle
> Mem:   1020088K total,   117088K used,   903000K free,     1548K buffers
> Swap:   499704K total,        0K used,   499704K free,    10784K cached
> 
>   PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
>   185 varenet   15   1 14984  14M   376 R N  99.8  1.4   0:49 setiathome
>   188 varenet   16   1 13772  13M   376 R N  99.6  1.3   0:24 setiathome
>   190 varenet   11   0  1128 1132   912 R     0.7  0.1   0:00 top
>     1 root       9   0   612  616   520 S     0.0  0.0   0:07 init
>     2 root       9   0     0    0     0 SW    0.0  0.0   0:00 keventd
>     3 root      19  19     0    0     0 SWN   0.0  0.0   0:00 
> ksoftirqd_CPU0
>     4 root      18  19     0    0     0 SWN   0.0  0.0   0:00 
> ksoftirqd_CPU1
>     5 root       9   0     0    0     0 SW    0.0  0.0   0:00 kswapd
>     6 root       9   0     0    0     0 SW    0.0  0.0   0:00 bdflush
>     7 root       9   0     0    0     0 SW    0.0  0.0   0:02 kupdated
>     8 root       9   0     0    0     0 SW    0.0  0.0   0:00 kjournald
>    66 root       9   0     0    0     0 SW    0.0  0.0   0:00 kjournald
>    67 root       9   0     0    0     0 SW    0.0  0.0   0:00 kjournald
>    90 daemon     9   0   564  564   452 S     0.0  0.0   0:00 portmap
>   146 root       9   0  1004 1004   840 S     0.0  0.0   0:00 syslogd
>   149 root       9   0  1424 1424   508 S     0.0  0.1   0:00 klogd
> 
> q[varenet@mkhppa3 ~/seti2]$ killall setiathome
> [varenet@mkhppa3 ~/seti2]$ cat /proc/version
> Linux version 2.4.19-pa18 (root@mkhppa3) (gcc version 3.0) #1 SMP Sun 
> Sep 15 18:21:12 CEST 2002
> [1]-  Terminated              ./setiathome  (wd: ~/seti1)
> (wd now: ~/seti2)
> [2]+  Terminated              ./setiathome
> [varenet@mkhppa3 ~/seti2]$ crontab -l
> @hourly         cd /home/varenet/seti1; ./setiathome -nice 20 -proxy 
> cache:3128 &
> #@reboot                cd /home/varenet/dnetc; ./dnetc
> @hourly         cd /home/varenet/seti2; ./setiathome -nice 20 -proxy 
> cache:3128 &
> [varenet@mkhppa3 ~/seti2]$ cd /home/varenet/seti1; ./setiathome -nice 20 
> -proxy cache:3128 &
> WARNING! Stack pointer and cr30 do not correspond!
> Dumping virtual address stack instead
> 
> Dumping Stack from 0x000000005f5a0000 to 0x000000005f5a4dc0:
> 
> 
> And nothing more.
> 
> after a toc, here was the content of SER PIM output:
> (I dumped everything, not sure of what may be useful or not ;)
> 
> Main Menu: Enter command or menu > ser pim
> 
> 
> PROCESSOR PIM INFORMATION
> 
> 
> 
> -----------------  Processor 0 HPMC Information - PDC Version: 40.50 ------
> 
> Timestamp =    Tue Oct  23 19:05:06 GMT 2001    (20:01:10:23:19:05:06)
> 
> HPMC Chassis Codes
> 
>        Chassis Code        Extension
>        ------------        ---------
>        0x0000082000ff6242  0x0000000000000000
>        0x1800082011006322  0xcb81800000000000
>        0x0000087000ff6292  0x0000000000000000
>        0x6000082070006062  0x0000000000100010
>        0x7000082070006082  0x0000000000b92400
>        0x7000082379006133  0xc1bff0fffed08040
>        0x0000080080006310  0x0000000000000001
>        0x000008008000631f  0x0000000000000000
> 
> 
> General Registers 0 - 31
> 00-03  0000000000000000  00000000103f9bb0  0000000010100bac 
> 00000000103f6bb0
> 04-07  000000000003d5ea  000000000038a000  00000000000000f0 
> 0000000000000000
> 08-11  0000000000000000  0000000000000001  000000000804000e 
> 000000001040888c
> 12-15  00000000000000f2  00000000000000fa  00000000000000f0 
> 00000000000000ff
> 16-19  00000000f00003dc  00000000f000028c  00000000f0002aa4 
> 00000000104a8000
> 20-23  0000000000000000  0000000000000000  0000000000000001 
> 000000004fa5c824
> 24-27  000000000800000f  0000000000000032  0000000000000019 
> 00000000103f6bb0
> 28-31  0000000000000000  00000000104a8b70  00000000104a8b00 
> 00000000104043b0
> 
> 
> Control Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000 
> 0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000 
> 0000000000000000
> 08-11  0000000000000072  0000000000000000  00000000000000c0 
> 000000000000003f
> 12-15  0000000000000000  0000000000000000  0000000000104000 
> ffffffffffffffff
> 16-19  0000000f96e6aa48  0000000000000000  0000000010100b88 
> 0000000003c008b3
> 20-23  0000000000000000  0000000000000000  000000000804000f 
> 0000000000000000
> 24-27  0000000000389000  000000003f158000  ffffffffffff7f10 
> ffffffffffff7fff
> 28-31  ffffffffffffffff  ffffffffffffffff  00000000104a8000 
> 00000000104b0000
> 
> Space Registers 0 - 7
> 00-03  00001c80          00000000          00000000          00001c80
> 04-07  00000000          00000000          00000000          00000000
> 
> 
> IIA Space (back entry)       = 0x0000000000000000
> IIA Offset (back entry)      = 0x0000000010100b8c
> Check Type                   = 0x20000000
> CPU State                    = 0x9e000004
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x0030000d
> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0xfffffffffffa0000
> System Requestor Address     = 0xfffffffffffa0000
> 
> 
> Floating Point Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000 
> 0000000000000000
> 04-07  0000000010388100  0000000100000001  0000000012a20000 
> 0000000000000000
> 08-11  0000000000000802  000000004fa78000  00000000103f6bb0 
> 000000004fa6fec0
> 12-15  0000000000000000  0000000010388100  000000001018197c 
> 00000000103fcbb0
> 16-19  0000000010388100  0000000000000002  0000000000000002 
> 000000001032d2d4
> 20-23  0000000000000001  0000000010388a80  0000000000000000 
> 00000000000000c0
> 24-27  0000000a10332690  00000000104fce18  000000000800000f 
> 00000000103d2af0
> 28-31  00000000103d2b20  0000000000000001  0000000010162de0 
> 0000000000000002
> 
> 
> Check Summary                = 0xcb81800000000000
> Available Memory             = 0x0000000040000000
> CPU Diagnose Register 2      = 0x0301000000802004
> CPU Status Register 0        = 0x3440c20000000000
> CPU Status Register 1        = 0x8000000000000000
> SADD LOG                     = 0x4820000000000000
> Read Short LOG               = 0xc1bff0fffed22310
> 
> 
> 
> -----------------  Processor 0 LPMC Information ------------------
> 
> Check Type                   = 0x00000000
> IC Parity Info               = 0x00000000
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x00000000
> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0x0000000000000000
> System Requestor Address     = 0x0000000000000000
> 
> 
> 
> -----------------  Processor 0 TOC Information -------------------
> 
> General Registers 0 - 31
> 00-03  0000000000000000  000000001037fa30  000000001010cca0 
> 0000000010443f10
> 04-07  000000004f5a5480  000000000000000f  000000001032adfc 
> 000000005f5a0018
> 08-11  000000001051f190  000000001051f1a0  000000000000002e 
> 0000000000000001
> 12-15  0000000000000003  000000000000002f  0000000000000000 
> 0000000000000002
> 16-19  000000004f5a5480  00000000000ad800  000000000009e800 
> 0000000000000000
> 20-23  000000001037fa30  0000000000000000  000000001038f690 
> 000000005f5a0018
> 24-27  000000000000000f  000000004f5a5480  000000001032adfc 
> 0000000010443f10
> 28-31  0000000000000040  000000004f5a5930  000000004f5a59c0 
> ffffffffffffffff
> 
> 
> Control Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000 
> 0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000 
> 0000000000000000
> 08-11  000000000000015a  0000000000000000  00000000000000c0 
> 000000000000003e
> 12-15  0000000000000000  0000000000000000  0000000000107000 
> 0000000000000000
> 16-19  00000059f094e5b5  0000000000000000  000000001010c990 
> 0000000086603fed
> 20-23  0000000000240000  00000000dff7fa30  000000000804000e 
> a000000000000000
> 24-27  00000000003d2000  000000003d24b000  ffffffffffff7f00 
> ffffffffffffffff
> 28-31  ffffffffffff7fff  ffffffffffffffff  000000004f5a4000 
> 00000000104c8000
> 
> Space Registers 0 - 7
> 00-03  00005680          00005680          00000000          00005680
> 04-07  00000000          00000000          00000000          00000000
> 
> IIA Space (back entry)       = 0x0000000000000000
> IIA Offset (back entry)      = 0x000000001010c994
> CPU State                    = 0x9e000001
> 
> 
> 
> -----------------  Processor 1 HPMC Information - PDC Version: 40.50 ------
> 
> Timestamp =    Tue Oct  23 19:05:06 GMT 2001    (20:01:10:23:19:05:06)
> 
> HPMC Chassis Codes
> 
>        Chassis Code        Extension
>        ------------        ---------
>        0x0000082000ff6242  0x0000000000000000
>        0x1800082011016312  0xcb81000000000000
> 
> 
> General Registers 0 - 31
> 00-03  0000000000000000  0000000010368068  000000001022f13c 
> 000000004fb29240
> 04-07  fffffffff8006030  00000000103f6bb0  00000000103f6bb0 
> fffffffff8006000
> 08-11  000000004fb29000  fffffffff8006028  0000000000002000 
> fffffffff8006030
> 12-15  000000000000012c  000000004f0d0b08  0000000000018054 
> 0000000000018414
> 16-19  0000000000000000  0000000000000001  0000000000026228 
> fffffffff8006000
> 20-23  0000000000000000  0000000000000000  0000000000000000 
> 0000000000000000
> 24-27  0000000000000000  fffffffff8006060  fffffffff8006030 
> 00000000103f6bb0
> 28-31  000000000000d6d8  000000004f0d10f0  000000004f0d1100 
> 000000000000003f
> 
> 
> Control Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000 
> 0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000 
> 0000000000000000
> 08-11  000000000000007c  0000000000000000  00000000000000c0 
> 0000000000000002
> 12-15  0000000000000000  0000000000000000  0000000000104000 
> ffffffffffffffff
> 16-19  0000000f96e6acc4  0000000000000000  0000000010270798 
> 000000000f40019a
> 20-23  00000000ae27ffe0  c000000001806030  000000ff0804f40f 
> 8000000000000000
> 24-27  0000000000389000  000000003f130000  ffffffffffffffff 
> ffffffffffff7fff
> 28-31  ffffffffffffffff  ffffffffffffffff  000000004f0d0000 
> 000000004fb78000
> 
> Space Registers 0 - 7
> 00-03  00001f00          00000000          00000000          00001f00
> 04-07  00000000          00000000          00000000          00000000
> 
> 
> IIA Space (back entry)       = 0x0000000000000000
> IIA Offset (back entry)      = 0x000000001027079c
> Check Type                   = 0x20000000
> CPU State                    = 0x9e000004
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x0030103b
> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0x000000fff8006030
> System Requestor Address     = 0xfffffffffffa2000
> 
> 
> Floating Point Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000 
> 0000000000000000
> 04-07  0000000010388100  0000000100000001  0000000012a20000 
> 0000000000000000
> 08-11  0000000000000802  000000004fa78000  00000000103f6bb0 
> 000000004fa6fec0
> 12-15  0000000000000000  0000000010388100  000000001018197c 
> 00000000103fcbb0
> 16-19  0000000010388100  0000000000000002  0000000000000002 
> 000000001032d2d4
> 20-23  0000000000000001  0000000010388a80  0000000000000000 
> 0000000000000000
> 24-27  0000000a10332690  00000000104fce18  000000000800000f 
> 00000000103d2af0
> 28-31  00000000103d2b20  0000000000000001  0000000010162de0 
> 0000000000000003
> 
> 
> Check Summary                = 0xcb81000000000000
> Available Memory             = 0x0000000040000000
> CPU Diagnose Register 2      = 0x0301010000802004
> CPU Status Register 0        = 0x2440c20000000000
> CPU Status Register 1        = 0x8002000000000000
> SADD LOG                     = 0x0c1912c0e840d002
> Read Short LOG               = 0xc1af00fff8006030
> 
> 
> 
> -----------------  Processor 1 LPMC Information ------------------
> 
> Check Type                   = 0x00000000
> IC Parity Info               = 0x00000000
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x00000000
> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0x0000000000000000
> System Requestor Address     = 0x0000000000000000
> 
> 
> 
> -----------------  Processor 1 TOC Information -------------------
> 
> General Registers 0 - 31
> 00-03  0000000000000000  0000000010446f10  0000000010103714 
> 0000000010443f10
> 04-07  00000000003d2000  fffffff0f040a000  0000000000000032 
> 00000000000000f7
> 08-11  0000000000000000  fffffff0f0400000  000000000804000e 
> 000000001045dbac
> 12-15  00000000000000f2  0000000000000001  00000000000000f0 
> 00000000000000ff
> 16-19  000000f0f00000c4  fffffff0f040c000  0000000000000000 
> 0000000011c50000
> 20-23  0000000000000000  0000000000000000  0000000000000001 
> 000000001047f824
> 24-27  000000000800000f  0000000000000032  0000000000000019 
> 0000000010443f10
> 28-31  0000000000000000  0000000011c50b30  0000000011c50ac0 
> 0000000010450f10
> 
> 
> Control Registers 0 - 31
> 00-03  0000000000000000  0000000000000000  0000000000000000 
> 0000000000000000
> 04-07  0000000000000000  0000000000000000  0000000000000000 
> 0000000000000000
> 08-11  0000000000000118  0000000000000000  00000000000000c0 
> 000000000000003e
> 12-15  0000000000000000  0000000000000000  0000000000107000 
> ff80000000000000
> 16-19  0000005a0364ba5e  0000000000000000  00000000101036f0 
> 0000000003c008b3
> 20-23  0000000000004480  0000000000000000  000000ff0806ff0f 
> 0000000000000000
> 24-27  00000000003d2000  000000003daa2000  ffffffffffffffff 
> ffffffffffffffff
> 28-31  ffffffffffffffff  ffffffffffffffff  0000000011c50000 
> ffffffffffffffff
> 
> Space Registers 0 - 7
> 00-03  00004480          00004480          00000000          00004600
> 04-07  00000000          00000000          00000000          00000000
> 
> IIA Space (back entry)       = 0x0000000000000000
> IIA Offset (back entry)      = 0x00000000101036f4
> CPU State                    = 0x9e000001
> 
> 
> --------------  Memory Error Log Information  --------------
> 
> Bus 0 Log Information
> 
> Timestamp =    Tue Oct  23 19:05:06 GMT 2001    (20:01:10:23:19:05:06)
> 
>   OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
>   --  --  --      -----      -  -  -  ----  ---  --  --  --
>   X       X     ERR_ERROR       X            X
> 
> Bus Requestor Address      = 0xfffffffffffa0000
> Bus Target Address         = 0x0000000000000000
> Bus Responder Address      = 0xfffffffffed00000
> 
> Error Status Reg           = 0x0000000000100010
> Runway Control Reg         = 0x0000021c00002818
> Runway Address Reg         = 0xc1bff0fffed08040
> Runway Data High Reg       = 0xf8018a1ff820ca01
> Runway Data Low Reg        = 0xf8018a1ff820ca01
> Memory Address Reg         = 0x000001ff3fffffff
> Memory Address Corr Reg    = 0x000001ff3fffffff
> Memory Syndrome Reg        = 0x0000000000000000
> Memory Syndrome Corr Reg   = 0x0000000000000000
> 
> 
> 
>  Address/Control Parity Error Registers
> 
>    Address/Control Parity Error Bit (mem_addr_par_stat) Not Set
> 
> 
> 
> ------------  I/O Module Error Log Information  ------------
> 
> 
>    No I/O module errors logged
> 
> 
> HTH,
> 
> Thibaut.
> 
> PS: when trying to boot after ser pim, the machine showed the following 
> and hung again:
> I dunno if that's normal ?
> 
> *****************************************
> 
> ************* SYSTEM ALERT **************
> SYSTEM NAME: a500
> DATE: 09/16/2002 TIME: 10:23:28
> ALERT LEVEL: 7 = reserved
> 
> REASON FOR ALERT
> SOURCE: 0 = unknown, no source stated
> SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
> PROBLEM DETAIL: 0 = no problem detail
> 
> LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
>        OFF      FLASH         ON        ON         ON
> LED State: Boot Failed.  Non-critical error detected.
> Check Chassis and Console Logs for error messages.
> 
> 0x0000107000FF6292 00000000 00000000 - type  0 = Data Field Unused
> 0x5800187000FF6292 00006608 100A171C - type 11 = Timestamp 09/16/2002 
> 10:23:28
> A: ack read of this entry - X: Disable all future alert messages
> Anything else skip redisplay the log entry
> ->Choice:a
> *****************************************
> 
> I had to issue a 'RS' to reboot the box.
> 



-- 
Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] GCC patch to fix various problems in the passing of aggregates
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Xref: news.gmane.org gmane.linux.ports.parisc:16154

This is a heads up to those that build from source.  A patch was applied
yesterday to the gcc 3.3 trunk to fix various ABI related problems in the
passing of aggregates.  It fixes various va_arg problems and improves
compatibility with the HP specified runtime architectures.  The downside
is that code (libraries) compiled with earlier versions of gcc may be
incompatible with new code.

The impact for 32-bit code is that 5-7 byte structs are now passed
correctly.  The patch also fixes a problem in passing structs with
a single char or short field.  Variable and zero sized types are now
also handled correctly.

The impact for 64-bit code is more significant.  All aggregates 
with a non-zero size MOD 8 were incorrectly padded when passed
by value.  This is now fixed.  As a GCC extension to the runtime,
variable and zero sized types are passed by invisible reference.

For more info, see <http://gcc.gnu.org/ml/gcc-patches/2002-09/msg00972.html>
and <http://gcc.gnu.org/ml/gcc-patches/2002-09/msg00975.html>.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Status SPIFI SCSI
Date: Tue, 17 Sep 2002 20:33:16 +0200
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To: Ryan Bradetich <rbradetich@uswest.net>
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Hello Ryan,

I think usinf the logic analyser will not help you on the
SCSI bus. You need the logic analyser on the SPIFI chip!!!

As I already mentioned in another mail, I think, we
DO NOT access the real device. As I have mentioned, 
we only read out 0x0000ff00 at each address and we
"write" the SCSI command in an invalid space ! So this
is "OK", that the chip do not produce any interrupts !

I think, this is a very basic problem of the bus or
i/o bus initilization or the Loquix init, or whatever.

I do not expect any frame on the SCSI output !

Bye
Christoph


Ryan Bradetich wrote:
> 
> Hello Christoph,
> 
> On Sun, 2002-09-15 at 17:25, Christoph Plattner wrote:
> > Hallo Ryan,
> >
> > here some comments on my non-successful work so far.
> >
> > I did code reading and used debug instrumented code
> > to understand the structure behind the linux SCSI
> > handling.
> >
> > Further I studied the NetBSD code.
> >
> > One major point: We do not get any interrupts.
> > For my analysis I only had a look on the first
> > steps of SCSI initialization, so this was the
> > INQUERY command.
> 
> This is where I am also currently stuck :(  The
> ESIEE guys are going to hook up an analyzer to the
> box and see if the target device is getting the command
> (ie... did we send the command correctly to the device)
> or if the device returns a command (do we catch the
> command the device is returning).  I have been studyting
> the setup routines in the HP-UX driver and I believe
> I have the chip initialized properly ... but I am not
> sure why I am not getting any interrupts.   Hopefully
> between ESIEE, you, and myself and anyone else
> interested we can figure this out.
> 
> > The spifi command routine is called correctly,
> > but it has a wrong logical implementation. As I
> > have seen on other (older) linux driver, the
> > xxx_command() has to block, after the command was
> > successful completed by interrupt. But the interrupt
> > never comes !! Even a "long" delay for simulating
> > blocking does not solve this problem.
> 
> That is highly possible.  The driver skeleton is just
> a test harness for me right now.  I am just trying to see
> what I can get returned from the spifi chip (that is why
> most of the functions are stubs with printk.  Once I see
> an interrupt come in, I'll start working on putting that piece
> togeather.
> 
> > From base of the NetBSD code, I cannot follow your
> > code resetting the spifi subsystem. I think you have
> > this from HP-UX code. Especially the
> >
> >   __raw_writel(CMD_RESET, dev->hpa + IO_MODULE_COMMAND);
> 
> Yes, this is part of the initizlization from the HP-UX
> driver.  The Loquix chip sits between the HP-PB bus, and
> the spifi scsi chip.  According to the HP-UX driver, the
> Loquix chip also required some setup.  Once again, I
> do not actually have the Loquix documentation, but I might
> have a lead on it.  Will have to wait and see if that lead
> pans out.
> 
> > Is this a reset method via the IO PDC address space
> > common for all HP devices ? In the NetBSD the full
> > reset is done only via the `auxctrl' register, which
> > you use for releasing the reset state.
> 
> I am not sure about all the HP devices.  It might be an iodc
> specific call.  I will have to look at the driver again,
> but that might reset the loquix chip *shrug* I'll take
> a look and see what I can find.
> 
> > So we have a principal problem here, not having correct
> > access to the spifi subsystem. Except: the SCSI-ID is
> > read out correctly, I think, as ...
> >
> > SCSI subsystem driver Revision: 1.00
> > DEBUG: 0xfff74c00
> > Device: Sahp Baat Kiuh SCSI
> > scsi0 : SPIFI SCSI: scsi_id: 7 IRQ: 34 type: SPIFI-3 (SE) parity
> > checking: enabled
> >
> > ... is reported !
> 
> That is where I am also. We actually read the type SPIFI-3 (SE) for the
> SKUNK card, and SPIFI-3 (DF) for the wizard (16-bit) card.  I have
> tested this on both cards so I know it works.  I am convinced we are
> reading the correct information from the card, but what I am not
> convinced of is that we have it setup properly yet :)  The problem is I
> do not know what I am missing yet :(
> 
> > Is everything around the interrupt subsystem setup correctly ?
> > The `cat /proc/interrupts' tells ...
> >
> > bash# cat /proc/interrupts
> >           CPU396195552
> >  32:     124925      PARISC-CPU  timer
> >  33:      19767      PARISC-CPU  lasi
> >  34:          0      PARISC-CPU  spifi
> >  87:      19767            Lasi  i82596
> >
> > ... which is no surprise ... !
> >
> 
> I do not think the fact the interrupt is registered is very infomative,
> I think you can register an interrupt for device even if it doesn't have
> an real irq assocaitated with it (ie... the serial mux).
> 
> Yeah, thanks for looking at it ... we will have to beat on it some more
> and see what we can find.  Hopefully the ESIEE guys will be able to
> provide us with some good information!
> 
> Thanks
> 
> - Ryan
> 
> > Till soon,
> > Christoph P.
> >
> >
> >
> >
> >
> > --
> > -------------------------------------------------------
> > private:      christoph.plattner@gmx.at
> > company:      christoph.plattner@alcatel.at
> >
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Fwd: A500 hang up 2.4.19-pa18 (lot of) details
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Thibaut VARENE wrote:
> This a forward to the p-l.o m-l about hang-up with 2.4.19-pa18 kernel, 
> that occurs when playing around with setiathome. See the transcript for 
> details.

I tried the same thing with setiathome on A500-4X (PA8500) and it
seems to work fine.
Thibaut is using A500-5X (PA8600) - same cache sizes as PA8500.
I was wondering if the is a problem with 4-way associative cache
or just higher clock speeds exposing bugs.

grant


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Subject: Re: [parisc-linux] Re: Status SPIFI SCSI
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Xref: news.gmane.org gmane.linux.ports.parisc:16157

Le mardi, 17 sep 2002, =E0 20:33 Europe/Paris, Christoph Plattner a =
=E9crit=20
:

Hi Christoph,
> Hello Ryan,
>
> I think usinf the logic analyser will not help you on the
> SCSI bus. You need the logic analyser on the SPIFI chip!!!
That's not a problem,
atm we have a 16channels analyser (we can have up to 128 if needed),
we tried using the HP 2423A SCSI preprocessor, but ours seems b0rken,
therefore we decided to plug directly onto the scsi board.

So plugging onto SPIFI chip shouldn't be a pb, as long as we have its=20
pinout,
so that we can isolate signals we're trying to find.

So if you can provide us with the pin numbers we should plug on,
that would help a lot ! :)
>
> As I already mentioned in another mail, I think, we
> DO NOT access the real device. As I have mentioned,
> we only read out 0x0000ff00 at each address and we
> "write" the SCSI command in an invalid space ! So this
> is "OK", that the chip do not produce any interrupts !
>
> I think, this is a very basic problem of the bus or
> i/o bus initilization or the Loquix init, or whatever.
>
> I do not expect any frame on the SCSI output !
>
> Bye
> Christoph
>
>
> Ryan Bradetich wrote:
>>
>> Hello Christoph,
>>
>> On Sun, 2002-09-15 at 17:25, Christoph Plattner wrote:
>>> Hallo Ryan,
>>>
>>> here some comments on my non-successful work so far.
>>>
>>> I did code reading and used debug instrumented code
>>> to understand the structure behind the linux SCSI
>>> handling.
>>>
>>> Further I studied the NetBSD code.
>>>
>>> One major point: We do not get any interrupts.
>>> For my analysis I only had a look on the first
>>> steps of SCSI initialization, so this was the
>>> INQUERY command.
>>
>> This is where I am also currently stuck :(  The
>> ESIEE guys are going to hook up an analyzer to the
>> box and see if the target device is getting the command
>> (ie... did we send the command correctly to the device)
>> or if the device returns a command (do we catch the
>> command the device is returning).  I have been studyting
>> the setup routines in the HP-UX driver and I believe
>> I have the chip initialized properly ... but I am not
>> sure why I am not getting any interrupts.   Hopefully
>> between ESIEE, you, and myself and anyone else
>> interested we can figure this out.
>>
>>> The spifi command routine is called correctly,
>>> but it has a wrong logical implementation. As I
>>> have seen on other (older) linux driver, the
>>> xxx_command() has to block, after the command was
>>> successful completed by interrupt. But the interrupt
>>> never comes !! Even a "long" delay for simulating
>>> blocking does not solve this problem.
>>
>> That is highly possible.  The driver skeleton is just
>> a test harness for me right now.  I am just trying to see
>> what I can get returned from the spifi chip (that is why
>> most of the functions are stubs with printk.  Once I see
>> an interrupt come in, I'll start working on putting that piece
>> togeather.
>>
>>> =46rom base of the NetBSD code, I cannot follow your
>>> code resetting the spifi subsystem. I think you have
>>> this from HP-UX code. Especially the
>>>
>>>   __raw_writel(CMD_RESET, dev->hpa + IO_MODULE_COMMAND);
>>
>> Yes, this is part of the initizlization from the HP-UX
>> driver.  The Loquix chip sits between the HP-PB bus, and
>> the spifi scsi chip.  According to the HP-UX driver, the
>> Loquix chip also required some setup.  Once again, I
>> do not actually have the Loquix documentation, but I might
>> have a lead on it.  Will have to wait and see if that lead
>> pans out.
>>
>>> Is this a reset method via the IO PDC address space
>>> common for all HP devices ? In the NetBSD the full
>>> reset is done only via the `auxctrl' register, which
>>> you use for releasing the reset state.
>>
>> I am not sure about all the HP devices.  It might be an iodc
>> specific call.  I will have to look at the driver again,
>> but that might reset the loquix chip *shrug* I'll take
>> a look and see what I can find.
>>
>>> So we have a principal problem here, not having correct
>>> access to the spifi subsystem. Except: the SCSI-ID is
>>> read out correctly, I think, as ...
>>>
>>> SCSI subsystem driver Revision: 1.00
>>> DEBUG: 0xfff74c00
>>> Device: Sahp Baat Kiuh SCSI
>>> scsi0 : SPIFI SCSI: scsi_id: 7 IRQ: 34 type: SPIFI-3 (SE) parity
>>> checking: enabled
>>>
>>> ... is reported !
>>
>> That is where I am also. We actually read the type SPIFI-3 (SE) for=20=

>> the
>> SKUNK card, and SPIFI-3 (DF) for the wizard (16-bit) card.  I have
>> tested this on both cards so I know it works.  I am convinced we are
>> reading the correct information from the card, but what I am not
>> convinced of is that we have it setup properly yet :)  The problem is=20=

>> I
>> do not know what I am missing yet :(
>>
>>> Is everything around the interrupt subsystem setup correctly ?
>>> The `cat /proc/interrupts' tells ...
>>>
>>> bash# cat /proc/interrupts
>>>           CPU396195552
>>>  32:     124925      PARISC-CPU  timer
>>>  33:      19767      PARISC-CPU  lasi
>>>  34:          0      PARISC-CPU  spifi
>>>  87:      19767            Lasi  i82596
>>>
>>> ... which is no surprise ... !
>>>
>>
>> I do not think the fact the interrupt is registered is very=20
>> infomative,
>> I think you can register an interrupt for device even if it doesn't=20=

>> have
>> an real irq assocaitated with it (ie... the serial mux).
>>
>> Yeah, thanks for looking at it ... we will have to beat on it some=20
>> more
>> and see what we can find.  Hopefully the ESIEE guys will be able to
>> provide us with some good information!
>>
>> Thanks
>>
>> - Ryan
>>
>>> Till soon,
>>> Christoph P.
>>>
>>>
>>>
>>>
>>>
>>> --
>>> -------------------------------------------------------
>>> private:      christoph.plattner@gmx.at
>>> company:      christoph.plattner@alcatel.at
>>>
>>
>> _______________________________________________
>> parisc-linux mailing list
>> parisc-linux@lists.parisc-linux.org
>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
> --=20
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] Re: Status SPIFI SCSI
Date: Tue, 17 Sep 2002 23:31:28 +0200
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To: Thibaut VARENE <varenet@esiee.fr>
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Xref: news.gmane.org gmane.linux.ports.parisc:16158

Hello,

the problem I wanted to point out is, that not the SCSI
interface problem is the point.

IMO we have a simple (take the word "simple" not too 
critical ...) software setup problem. It seems, that
we do not access the chip physically.

I have no NDA, I have no possibility to look into the
source codes of HP-UX (but I want to have it !!), I have
no hardware docu, no chip docu (although I am able to
read them and I want to have access), so my help here
is very restricted !!!

But one small hint: The "chip selelct" line and the
low order address bits, to see if there is really a
hardware access to this chip. Further perhaps the
read and write control line. I do not know the 
HP own bus system (I also miss such documentation),
but I use simple the words of a standard bus access
(RD, WR, CS or CE, address lines, data lines).

HOW CAN I GET DOCUMENTATIONS ????

Bye
Christoph



Thibaut VARENE wrote:
> 
> Le mardi, 17 sep 2002,  20:33 Europe/Paris, Christoph Plattner a crit
> :
> 
> Hi Christoph,
> > Hello Ryan,
> >
> > I think usinf the logic analyser will not help you on the
> > SCSI bus. You need the logic analyser on the SPIFI chip!!!
> That's not a problem,
> atm we have a 16channels analyser (we can have up to 128 if needed),
> we tried using the HP 2423A SCSI preprocessor, but ours seems b0rken,
> therefore we decided to plug directly onto the scsi board.
> 
> So plugging onto SPIFI chip shouldn't be a pb, as long as we have its
> pinout,
> so that we can isolate signals we're trying to find.
> 
> So if you can provide us with the pin numbers we should plug on,
> that would help a lot ! :)
> >
> > As I already mentioned in another mail, I think, we
> > DO NOT access the real device. As I have mentioned,
> > we only read out 0x0000ff00 at each address and we
> > "write" the SCSI command in an invalid space ! So this
> > is "OK", that the chip do not produce any interrupts !
> >
> > I think, this is a very basic problem of the bus or
> > i/o bus initilization or the Loquix init, or whatever.
> >
> > I do not expect any frame on the SCSI output !
> >
> > Bye
> > Christoph
> >
> >
> > Ryan Bradetich wrote:
> >>
> >> Hello Christoph,
> >>
> >> On Sun, 2002-09-15 at 17:25, Christoph Plattner wrote:
> >>> Hallo Ryan,
> >>>
> >>> here some comments on my non-successful work so far.
> >>>
> >>> I did code reading and used debug instrumented code
> >>> to understand the structure behind the linux SCSI
> >>> handling.
> >>>
> >>> Further I studied the NetBSD code.
> >>>
> >>> One major point: We do not get any interrupts.
> >>> For my analysis I only had a look on the first
> >>> steps of SCSI initialization, so this was the
> >>> INQUERY command.
> >>
> >> This is where I am also currently stuck :(  The
> >> ESIEE guys are going to hook up an analyzer to the
> >> box and see if the target device is getting the command
> >> (ie... did we send the command correctly to the device)
> >> or if the device returns a command (do we catch the
> >> command the device is returning).  I have been studyting
> >> the setup routines in the HP-UX driver and I believe
> >> I have the chip initialized properly ... but I am not
> >> sure why I am not getting any interrupts.   Hopefully
> >> between ESIEE, you, and myself and anyone else
> >> interested we can figure this out.
> >>
> >>> The spifi command routine is called correctly,
> >>> but it has a wrong logical implementation. As I
> >>> have seen on other (older) linux driver, the
> >>> xxx_command() has to block, after the command was
> >>> successful completed by interrupt. But the interrupt
> >>> never comes !! Even a "long" delay for simulating
> >>> blocking does not solve this problem.
> >>
> >> That is highly possible.  The driver skeleton is just
> >> a test harness for me right now.  I am just trying to see
> >> what I can get returned from the spifi chip (that is why
> >> most of the functions are stubs with printk.  Once I see
> >> an interrupt come in, I'll start working on putting that piece
> >> togeather.
> >>
> >>> From base of the NetBSD code, I cannot follow your
> >>> code resetting the spifi subsystem. I think you have
> >>> this from HP-UX code. Especially the
> >>>
> >>>   __raw_writel(CMD_RESET, dev->hpa + IO_MODULE_COMMAND);
> >>
> >> Yes, this is part of the initizlization from the HP-UX
> >> driver.  The Loquix chip sits between the HP-PB bus, and
> >> the spifi scsi chip.  According to the HP-UX driver, the
> >> Loquix chip also required some setup.  Once again, I
> >> do not actually have the Loquix documentation, but I might
> >> have a lead on it.  Will have to wait and see if that lead
> >> pans out.
> >>
> >>> Is this a reset method via the IO PDC address space
> >>> common for all HP devices ? In the NetBSD the full
> >>> reset is done only via the `auxctrl' register, which
> >>> you use for releasing the reset state.
> >>
> >> I am not sure about all the HP devices.  It might be an iodc
> >> specific call.  I will have to look at the driver again,
> >> but that might reset the loquix chip *shrug* I'll take
> >> a look and see what I can find.
> >>
> >>> So we have a principal problem here, not having correct
> >>> access to the spifi subsystem. Except: the SCSI-ID is
> >>> read out correctly, I think, as ...
> >>>
> >>> SCSI subsystem driver Revision: 1.00
> >>> DEBUG: 0xfff74c00
> >>> Device: Sahp Baat Kiuh SCSI
> >>> scsi0 : SPIFI SCSI: scsi_id: 7 IRQ: 34 type: SPIFI-3 (SE) parity
> >>> checking: enabled
> >>>
> >>> ... is reported !
> >>
> >> That is where I am also. We actually read the type SPIFI-3 (SE) for
> >> the
> >> SKUNK card, and SPIFI-3 (DF) for the wizard (16-bit) card.  I have
> >> tested this on both cards so I know it works.  I am convinced we are
> >> reading the correct information from the card, but what I am not
> >> convinced of is that we have it setup properly yet :)  The problem is
> >> I
> >> do not know what I am missing yet :(
> >>
> >>> Is everything around the interrupt subsystem setup correctly ?
> >>> The `cat /proc/interrupts' tells ...
> >>>
> >>> bash# cat /proc/interrupts
> >>>           CPU396195552
> >>>  32:     124925      PARISC-CPU  timer
> >>>  33:      19767      PARISC-CPU  lasi
> >>>  34:          0      PARISC-CPU  spifi
> >>>  87:      19767            Lasi  i82596
> >>>
> >>> ... which is no surprise ... !
> >>>
> >>
> >> I do not think the fact the interrupt is registered is very
> >> infomative,
> >> I think you can register an interrupt for device even if it doesn't
> >> have
> >> an real irq assocaitated with it (ie... the serial mux).
> >>
> >> Yeah, thanks for looking at it ... we will have to beat on it some
> >> more
> >> and see what we can find.  Hopefully the ESIEE guys will be able to
> >> provide us with some good information!
> >>
> >> Thanks
> >>
> >> - Ryan
> >>
> >>> Till soon,
> >>> Christoph P.
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> --
> >>> -------------------------------------------------------
> >>> private:      christoph.plattner@gmx.at
> >>> company:      christoph.plattner@alcatel.at
> >>>
> >>
> >> _______________________________________________
> >> parisc-linux mailing list
> >> parisc-linux@lists.parisc-linux.org
> >> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
> > --
> > -------------------------------------------------------
> > private:      christoph.plattner@gmx.at
> > company:      christoph.plattner@alcatel.at
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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Subject: Re: [parisc-linux] Re: Status SPIFI SCSI
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Xref: news.gmane.org gmane.linux.ports.parisc:16159

Le mardi, 17 sep 2002, =E0 23:31 Europe/Paris, Christoph Plattner a =
=E9crit=20
:

> Hello,
>
> the problem I wanted to point out is, that not the SCSI
> interface problem is the point.
yes i got that.
>
> IMO we have a simple (take the word "simple" not too
> critical ...) software setup problem. It seems, that
> we do not access the chip physically.
ok
>
> I have no NDA, I have no possibility to look into the
> source codes of HP-UX (but I want to have it !!), I have
> no hardware docu, no chip docu (although I am able to
> read them and I want to have access), so my help here
> is very restricted !!!
Alas, it looks like we're all in the same case here...
>
> But one small hint: The "chip selelct" line and the
> low order address bits, to see if there is really a
> hardware access to this chip. Further perhaps the
> read and write control line. I do not know the
I agree on the fact that CS;R/W; and other signal are
mandatory to trace chip activity, but if we don't have
a somehow precise pinout, it will be helpless...
We can eventually trace all pins of the chipset, but if
we don't know what is what, that won't be useful.
> HP own bus system (I also miss such documentation),
> but I use simple the words of a standard bus access
> (RD, WR, CS or CE, address lines, data lines).
>
> HOW CAN I GET DOCUMENTATIONS ????
Alas, they're all "for your eyes only".
We've been fighting with such a problem for ages.
We have lots of old 725 cards (SCSI, ATM and others)
for which we couldn't developp driver since we didn't have
any doc.
Same for newest graphic cards (FX series)...

If someone can help on that point, that would be really
awesome.

Of course we (at ESIEE) are ready to sign a NDA...
>
> Bye
> Christoph
>
Thibaut.
>
>
> Thibaut VARENE wrote:
>>
>> Le mardi, 17 sep 2002, =E0 20:33 Europe/Paris, Christoph Plattner a=20=

>> =E9crit
>> :
>>
>> Hi Christoph,
>>> Hello Ryan,
>>>
>>> I think usinf the logic analyser will not help you on the
>>> SCSI bus. You need the logic analyser on the SPIFI chip!!!
>> That's not a problem,
>> atm we have a 16channels analyser (we can have up to 128 if needed),
>> we tried using the HP 2423A SCSI preprocessor, but ours seems b0rken,
>> therefore we decided to plug directly onto the scsi board.
>>
>> So plugging onto SPIFI chip shouldn't be a pb, as long as we have its
>> pinout,
>> so that we can isolate signals we're trying to find.
>>
>> So if you can provide us with the pin numbers we should plug on,
>> that would help a lot ! :)
>>>
>>> As I already mentioned in another mail, I think, we
>>> DO NOT access the real device. As I have mentioned,
>>> we only read out 0x0000ff00 at each address and we
>>> "write" the SCSI command in an invalid space ! So this
>>> is "OK", that the chip do not produce any interrupts !
>>>
>>> I think, this is a very basic problem of the bus or
>>> i/o bus initilization or the Loquix init, or whatever.
>>>
>>> I do not expect any frame on the SCSI output !
>>>
>>> Bye
>>> Christoph
>>>
>>>
>>> Ryan Bradetich wrote:
>>>>
>>>> Hello Christoph,
>>>>
>>>> On Sun, 2002-09-15 at 17:25, Christoph Plattner wrote:
>>>>> Hallo Ryan,
>>>>>
>>>>> here some comments on my non-successful work so far.
>>>>>
>>>>> I did code reading and used debug instrumented code
>>>>> to understand the structure behind the linux SCSI
>>>>> handling.
>>>>>
>>>>> Further I studied the NetBSD code.
>>>>>
>>>>> One major point: We do not get any interrupts.
>>>>> For my analysis I only had a look on the first
>>>>> steps of SCSI initialization, so this was the
>>>>> INQUERY command.
>>>>
>>>> This is where I am also currently stuck :(  The
>>>> ESIEE guys are going to hook up an analyzer to the
>>>> box and see if the target device is getting the command
>>>> (ie... did we send the command correctly to the device)
>>>> or if the device returns a command (do we catch the
>>>> command the device is returning).  I have been studyting
>>>> the setup routines in the HP-UX driver and I believe
>>>> I have the chip initialized properly ... but I am not
>>>> sure why I am not getting any interrupts.   Hopefully
>>>> between ESIEE, you, and myself and anyone else
>>>> interested we can figure this out.
>>>>
>>>>> The spifi command routine is called correctly,
>>>>> but it has a wrong logical implementation. As I
>>>>> have seen on other (older) linux driver, the
>>>>> xxx_command() has to block, after the command was
>>>>> successful completed by interrupt. But the interrupt
>>>>> never comes !! Even a "long" delay for simulating
>>>>> blocking does not solve this problem.
>>>>
>>>> That is highly possible.  The driver skeleton is just
>>>> a test harness for me right now.  I am just trying to see
>>>> what I can get returned from the spifi chip (that is why
>>>> most of the functions are stubs with printk.  Once I see
>>>> an interrupt come in, I'll start working on putting that piece
>>>> togeather.
>>>>
>>>>> =46rom base of the NetBSD code, I cannot follow your
>>>>> code resetting the spifi subsystem. I think you have
>>>>> this from HP-UX code. Especially the
>>>>>
>>>>>   __raw_writel(CMD_RESET, dev->hpa + IO_MODULE_COMMAND);
>>>>
>>>> Yes, this is part of the initizlization from the HP-UX
>>>> driver.  The Loquix chip sits between the HP-PB bus, and
>>>> the spifi scsi chip.  According to the HP-UX driver, the
>>>> Loquix chip also required some setup.  Once again, I
>>>> do not actually have the Loquix documentation, but I might
>>>> have a lead on it.  Will have to wait and see if that lead
>>>> pans out.
>>>>
>>>>> Is this a reset method via the IO PDC address space
>>>>> common for all HP devices ? In the NetBSD the full
>>>>> reset is done only via the `auxctrl' register, which
>>>>> you use for releasing the reset state.
>>>>
>>>> I am not sure about all the HP devices.  It might be an iodc
>>>> specific call.  I will have to look at the driver again,
>>>> but that might reset the loquix chip *shrug* I'll take
>>>> a look and see what I can find.
>>>>
>>>>> So we have a principal problem here, not having correct
>>>>> access to the spifi subsystem. Except: the SCSI-ID is
>>>>> read out correctly, I think, as ...
>>>>>
>>>>> SCSI subsystem driver Revision: 1.00
>>>>> DEBUG: 0xfff74c00
>>>>> Device: Sahp Baat Kiuh SCSI
>>>>> scsi0 : SPIFI SCSI: scsi_id: 7 IRQ: 34 type: SPIFI-3 (SE) parity
>>>>> checking: enabled
>>>>>
>>>>> ... is reported !
>>>>
>>>> That is where I am also. We actually read the type SPIFI-3 (SE) for
>>>> the
>>>> SKUNK card, and SPIFI-3 (DF) for the wizard (16-bit) card.  I have
>>>> tested this on both cards so I know it works.  I am convinced we =
are
>>>> reading the correct information from the card, but what I am not
>>>> convinced of is that we have it setup properly yet :)  The problem=20=

>>>> is
>>>> I
>>>> do not know what I am missing yet :(
>>>>
>>>>> Is everything around the interrupt subsystem setup correctly ?
>>>>> The `cat /proc/interrupts' tells ...
>>>>>
>>>>> bash# cat /proc/interrupts
>>>>>           CPU396195552
>>>>>  32:     124925      PARISC-CPU  timer
>>>>>  33:      19767      PARISC-CPU  lasi
>>>>>  34:          0      PARISC-CPU  spifi
>>>>>  87:      19767            Lasi  i82596
>>>>>
>>>>> ... which is no surprise ... !
>>>>>
>>>>
>>>> I do not think the fact the interrupt is registered is very
>>>> infomative,
>>>> I think you can register an interrupt for device even if it doesn't
>>>> have
>>>> an real irq assocaitated with it (ie... the serial mux).
>>>>
>>>> Yeah, thanks for looking at it ... we will have to beat on it some
>>>> more
>>>> and see what we can find.  Hopefully the ESIEE guys will be able to
>>>> provide us with some good information!
>>>>
>>>> Thanks
>>>>
>>>> - Ryan
>>>>
>>>>> Till soon,
>>>>> Christoph P.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> -------------------------------------------------------
>>>>> private:      christoph.plattner@gmx.at
>>>>> company:      christoph.plattner@alcatel.at
>>>>>
>>>>
>>>> _______________________________________________
>>>> parisc-linux mailing list
>>>> parisc-linux@lists.parisc-linux.org
>>>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>>
>>> --
>>> -------------------------------------------------------
>>> private:      christoph.plattner@gmx.at
>>> company:      christoph.plattner@alcatel.at
>>> _______________________________________________
>>> parisc-linux mailing list
>>> parisc-linux@lists.parisc-linux.org
>>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
> --=20
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Yves,
  forwarding to the parisc-linux, which is a more appropriate place
for this question.

as an aside, 0.9.3 is not the latest release - debian 3.0 contains newer bits.
<hint>maybe one of these days someone will point that out on -announce</hint>


On Tue, Sep 17, 2002 at 11:46:39PM +0200, Yves Vrijhoeven wrote:
> Hi,
> 
> I downloaded the "palinux-0.9.3.iso" and burned it to CD.  If I put the CD in PA RISC powerd PC (Visualise C240) and boot with the command "bo sescsi.3.0" the PC seems to boot from the CD (I get somewhere the message "palo ipl 0.96 root@palinux Fri Nov  2 16:31:18 MST 2001" ...(clock setting is not correct))
> Everything seems ok until I get the message:
> ...
> Branching to kernel entry point 0x00100000.  If this is the last message you see, you may need to switch your console.  This is a common sympton -- sarch the FAQ and mailing list at parisc-linux.org
> 
> After this nothing happens anymore.  I searched the FAQ and mailing list but I could not find a solution so far.
> 
> Anyone can help me out on this.
> 
> Thanks in advance.
> 
> Please E-mail me.
> 
> Yves Vrijhoeven
> yves.vrijhoeven@belgacom.net
> yvesvrijhoeven@belgacom.net

-- 
---------------------------
dann frazier
Hewlett-Packard
Linux Systems Division
dannf@hp.com
(970) 898-0800


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dann wrote:
> Yves,
>   forwarding to the parisc-linux, which is a more appropriate place
> for this question.
> 
> as an aside, 0.9.3 is not the latest release - debian 3.0 contains newer bits.
> <hint>maybe one of these days someone will point that out on -announce</hint>

Dann you have right 0.9.3 iso is quiet old and Debian3.0r0 iso are 
referenced on :http://www.parisc-linux.org/index.html (i do not find it 
any more on .de? but well on .se)

As well as the net install iso (when it is possible to install over a 
network connection) which offer the advantage to propose the last 
development kernel :)

Yves, good luck

	Joel



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Subject: RE: [parisc-linux] Re: [lists] installing Linux on A Visualise C2
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We had the same problem on a L9000 we put the octopus cable on the server,
and a console cable on the console port, and everything worked fine. 

Josh

-----Original Message-----
From: dannf@fc.hp.com [mailto:dannf@fc.hp.com] 
Sent: Tuesday, September 17, 2002 2:54 PM
To: Yves Vrijhoeven; parisc-linux@lists.parisc-linux.org
Subject: [parisc-linux] Re: [lists] installing Linux on A Visualise C240

Yves,
  forwarding to the parisc-linux, which is a more appropriate place
for this question.

as an aside, 0.9.3 is not the latest release - debian 3.0 contains newer
bits.
<hint>maybe one of these days someone will point that out on
-announce</hint>


On Tue, Sep 17, 2002 at 11:46:39PM +0200, Yves Vrijhoeven wrote:
> Hi,
> 
> I downloaded the "palinux-0.9.3.iso" and burned it to CD.  If I put the CD
in PA RISC powerd PC (Visualise C240) and boot with the command "bo
sescsi.3.0" the PC seems to boot from the CD (I get somewhere the message
"palo ipl 0.96 root@palinux Fri Nov  2 16:31:18 MST 2001" ...(clock setting
is not correct))
> Everything seems ok until I get the message:
> ...
> Branching to kernel entry point 0x00100000.  If this is the last message
you see, you may need to switch your console.  This is a common sympton --
sarch the FAQ and mailing list at parisc-linux.org
> 
> After this nothing happens anymore.  I searched the FAQ and mailing list
but I could not find a solution so far.
> 
> Anyone can help me out on this.
> 
> Thanks in advance.
> 
> Please E-mail me.
> 
> Yves Vrijhoeven
> yves.vrijhoeven@belgacom.net
> yvesvrijhoeven@belgacom.net

-- 
---------------------------
dann frazier
Hewlett-Packard
Linux Systems Division
dannf@hp.com
(970) 898-0800
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

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Xref: news.gmane.org gmane.linux.ports.parisc:16163

> > > Kernel Fault: Code=15 regs=11ddc640 (Addr=00277e00)
> > > 
> > >       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > > PSW: 00000000000011000000000000001111 Not tainted
> > > r00-03  00000000 00000023 101feac4 00000200
> > ...
> > > IASQ: 00000000 0000000 IAOQ: 10263c78 10263c70
> > ...
> > what symbols do 101feac4 and 10263c78 refer to?
> 
> 10263c78 is in copy_from_user, 101feac4 is in harmony_audio_write().
> the only point at which we call copy_from_user is:
> 
>                 /* Copy the page to an aligned buffer */
>                 copy_from_user(played_buf.addr + (HARMONY_BUF_SIZE*buf_to_fill)
> 					+ harmony.play_offset,
> 				buffer+count, frame_size);
> 

Data TLB miss fault / Data page fault.

Looks like it walked a little too far into some address that
wasn't mapped?

c.



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Yves,

I had this same issue with my C180 workstation when booting from my
graphics card loaded in the card cage.  I was able to get the system to
work using my onboard graphics port, but the C240 does not have an
onboard graphics port.  My external graphics card is not supported
(A4071A).  More than likely you have a graphics card in there that is
not supported yet and more than likely never will be.  There is little
information about HP graphics cards out there in order to write the
drivers for them.  If you could give us the product number of the card
we could tell you whether or not it is a supported card.  If it is
supported there is a configuration in the boot handler that is not
correct.  The product number is a letter followed by 4 number then a
letter (ex: A3312A) if you aren't familier with HP product codes.

derek

  
--- Joel Soete <joel.soete@freebel.net> wrote:
> 
> 
> dann wrote:
> > Yves,
> >   forwarding to the parisc-linux, which is a more appropriate place
> > for this question.
> > 
> > as an aside, 0.9.3 is not the latest release - debian 3.0 contains
> newer bits.
> > <hint>maybe one of these days someone will point that out on
> -announce</hint>
> 
> Dann you have right 0.9.3 iso is quiet old and Debian3.0r0 iso are 
> referenced on :http://www.parisc-linux.org/index.html (i do not find
> it 
> any more on .de? but well on .se)
> 
> As well as the net install iso (when it is possible to install over a
> 
> network connection) which offer the advantage to propose the last 
> development kernel :)
> 
> Yves, good luck
> 
> 	Joel
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: Re: [parisc-linux] Re: Status SPIFI SCSI
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Good luck trying to find a pinout for the chips on the cards....I can't
even find a block diagram of the cards on the HP internal websites.  As
a sidenote, I was talking to one of my customers this evening that had
dealings with a contractor to HP that was involved in the original
development of the HP-PB devices.  I found an E-mail address for him in
the HP address book and asked him if he would mind us bouncing ideas
off of him.  Waiting to see what he says or if I get a responce.

derek

--- Thibaut VARENE <varenet@esiee.fr> wrote:
> 
> Le mardi, 17 sep 2002,  20:33 Europe/Paris, Christoph Plattner a
> crit 
> :
> 
> Hi Christoph,
> > Hello Ryan,
> >
> > I think usinf the logic analyser will not help you on the
> > SCSI bus. You need the logic analyser on the SPIFI chip!!!
> That's not a problem,
> atm we have a 16channels analyser (we can have up to 128 if needed),
> we tried using the HP 2423A SCSI preprocessor, but ours seems b0rken,
> therefore we decided to plug directly onto the scsi board.
> 
> So plugging onto SPIFI chip shouldn't be a pb, as long as we have its
> 
> pinout,
> so that we can isolate signals we're trying to find.
> 
> So if you can provide us with the pin numbers we should plug on,
> that would help a lot ! :)
> >
> > As I already mentioned in another mail, I think, we
> > DO NOT access the real device. As I have mentioned,
> > we only read out 0x0000ff00 at each address and we
> > "write" the SCSI command in an invalid space ! So this
> > is "OK", that the chip do not produce any interrupts !
> >
> > I think, this is a very basic problem of the bus or
> > i/o bus initilization or the Loquix init, or whatever.
> >
> > I do not expect any frame on the SCSI output !
> >
> > Bye
> > Christoph
> >
> >

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Le mercredi, 18 sep 2002, =E0 03:02 Europe/Paris, Carlos O'Donell a =
=E9crit=20
:

>>>> Kernel Fault: Code=3D15 regs=3D11ddc640 (Addr=3D00277e00)
>>>>
>>>>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>>> PSW: 00000000000011000000000000001111 Not tainted
>>>> r00-03  00000000 00000023 101feac4 00000200
>>> ...
>>>> IASQ: 00000000 0000000 IAOQ: 10263c78 10263c70
>>> ...
>>> what symbols do 101feac4 and 10263c78 refer to?
>>
>> 10263c78 is in copy_from_user, 101feac4 is in harmony_audio_write().
>> the only point at which we call copy_from_user is:
>>
>>                 /* Copy the page to an aligned buffer */
>>                 copy_from_user(played_buf.addr +=20
>> (HARMONY_BUF_SIZE*buf_to_fill)
>> 					+ harmony.play_offset,
>> 				buffer+count, frame_size);
>>
>
> Data TLB miss fault / Data page fault.
>
> Looks like it walked a little too far into some address that
> wasn't mapped?
Yeah,
I caught Matthieu Delahaye lately, he told me that it was probably a
failing "modulo" on the calculation of the remaining size of buffer
to be sent to the audio card, or something like that...
>
> c.


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/=



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Subject: [parisc-linux] With all this talk about graphics...
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Well I was actually looking for something else when I ran across these
two links.  I don't know if they are helpful or if they have already
been referenced as far as creating drivers for some of the older and
newer graphics cards.  Since I'm not a software guy I wasn't aware if
they would be helpful or not.


http://docs.hp.com/cgi-bin/onlinedocs.py?mpn=B2355-90142&service=hpux&path=../B2355-90142/00/00/1&title=Graphics%20Administration%20Guide

http://docs.hp.com/cgi-bin/onlinedocs.py?mpn=B2355-90143&service=hpux&path=../B2355-90143/00/00/1&title=Starbase%20Technical%20Addendum%20for%20the%20July%2C%201997%20Workstation%20ACE%20for%20HP-UX%2010.20

derek



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Subject: [parisc-linux] anybody has succefully compiled Mysql-3.23.49 from debian source
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Hi, I tried to compile mysql-3.23.49, but no good result, there are=20
many errors in compiling with libraries. I do dist-upgrade every week


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Stephan Trajkoff wrote:
> 
> -------------------------------------------------------------------
> -->> FREE Perl CGI scripts add WEB ACCESS to your POP email accounts!
> -->> Download today!! http://www.adjeweb.com
> -------------------------------------------------------------------
> 
> Hi, I tried to compile mysql-3.23.49, but no good result, there are 
> many errors in compiling with libraries. I do dist-upgrade every week

Why don't you use the package provided by Debian?

libmysqlclient10-dev  stable    3.23.49-8   hppa

libmysqlclient10      stable    3.23.49-8   hppa

mysql-client          stable    3.23.49-8   hppa

mysql-server          stable    3.23.49-8   hppa

i.e. use apt-get install ...

Regards,

	Joey

-- 
Whenever you meet yourself you're in a time loop or in front of a mirror.


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Hello List,

I'm trying to compile an SMP kernel for my D 350 (2cpu) server without
success.
The kernel source is 2.4.19-pa18 and in non-smp configuration it works
well. Anyway the SMP kernel compiles fine but when I try to boot it
stops at the "If this is the last message you see, you may need to switch
your console" line. I've switched the console but got no other output.
(It was the same with 2.4.19-pa14)
The system was installed from a debian 3.0 CD.
Can somebody send me a working .config? Or what can be the problem?

Thanks in advance,

__
Steve



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From: j.steindlberger@gmx.de
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Subject: Re: [parisc-linux] ide controller
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Hi Grant,

together with Moritz I/we tried to get some new results. We took the latest
kernel (-pa18) and did the changes to the PDC202XX-definitions in pdc202xx.c.
But I don't believe that the kernel gets the chance to recognice this
change. I think the kernel crashes earlier. We reduced the kernel by the specific
drivers. We disabled the following:
[ ]     Generic PCI bus-master DMA support
After compiling wie had these three modules:
ide-mod.o
ide-probe-mod.o
ide-disk.o
An insmod ide-mod.o was possible. But after insmod ide-probe-mod the kernel
crashes. In some cases we got an output with about 50 pages of memory
addresses. At the beginning we got some messages told about the SYM-SCSI-device.
Could that be a conflict? We did not succeed to reproduce that and log it.

Here my questions:
Did You here about anyone to succeed in using an IDE-controller in a
HP-RISC-architecture?
Do You see a chance to use IDE-disks in future (with some none
HP-controller)
Do You know about more people who are interrested in what we tried to do?
That would be an argument for me to continue experimenting.

Thank You
Joerg

> #define PDC202XX_DEBUG_DRIVE_INFO               0
> #define PDC202XX_DECODE_REGISTER_INFO           0
> 
>   and rebuild the module with that.
> 
> 3) post the console log and "ser pim" output at PDC prompt.

-- 
GMX - Die Kommunikationsplattform im Internet.
http://www.gmx.net



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Hello Joerg,

The only difference between the non-smp and smp kernel config file is
CONFIG_SMP=yes , AFAIK.
I made a "make menuconfig" and the only thing I've changed is SMP support.
The strange thing is that the precompiled smp kernel from the install cd
boots fine. (2.4.18-smp)

BTW where can I select 32bit/64bit support?
__
Steve

On Thu, 19 Sep 2002, J.Steindlberger wrote:

> Hi Steve,
>
> I'm no developer, but I know, that there are a few restrictions with D-Class
> machines. Did You select 64bit support? This machine is a 32bit architecture.
>
> Regards
> Joerg
>
> On Thursday 19 September 2002 09:38, you wrote:
> > I'm trying to compile an SMP kernel for my D 350 (2cpu) server without
> > success.
> > The kernel source is 2.4.19-pa18 and in non-smp configuration it works
> > well. Anyway the SMP kernel compiles fine but when I try to boot it
> > stops at the "If this is the last message you see, you may need to switch
> > your console" line. I've switched the console but got no other output.
> > (It was the same with 2.4.19-pa14)
> > The system was installed from a debian 3.0 CD.
> > Can somebody send me a working .config? Or what can be the problem?
>



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Xref: news.gmane.org gmane.linux.ports.parisc:16173

On Thu, 2002-09-19 at 09:41, j.steindlberger@gmx.de wrote:
> together with Moritz I/we tried to get some new results. We took the latest
> kernel (-pa18) and did the changes to the PDC202XX-definitions in pdc202xx.c.
> But I don't believe that the kernel gets the chance to recognice this
> change. I think the kernel crashes earlier. We reduced the kernel by the specific
> drivers. We disabled the following:
> [ ]     Generic PCI bus-master DMA support
> After compiling wie had these three modules:
> ide-mod.o
> ide-probe-mod.o
> ide-disk.o
> An insmod ide-mod.o was possible. But after insmod ide-probe-mod the kernel
> crashes. In some cases we got an output with about 50 pages of memory
> addresses. At the beginning we got some messages told about the SYM-SCSI-device.
> Could that be a conflict? We did not succeed to reproduce that and log it.

Our IDE code has been run on non x86 platforms. It does require that the
defaults are set right for the platform so that it doesnt do stuff like
blindly probe I/O 0x170. 

I don't know if the Promise card needs its BIOS to have run, I would
suspect not but can't be sure.





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This is a multi-part message in MIME format.
--------------060604040603010400060207
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Hello, please see the attachment.
I use 2.4.18-pa61 kernel and enabled PPP support
PPPD version is 2.4.1, PPTPD is 1.1.3

--------------060604040603010400060207
Content-Type: text/plain;
 name="ppp"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="ppp"

Sep 19 13:22:41 obzor pppd[17190]: read: Resource temporarily unavailable
Sep 19 13:22:41 obzor pppd[17190]: read /dev/ppp: Resource temporarily
unavailable
Sep 19 13:22:41 obzor pppd[17190]: rcvd [LCP ConfAck id=0x1 <asyncmap 0x0>
<auth pap> <magic 0x2479cb91> <pcomp> <accomp>]
Sep 19 13:22:41 obzor pppd[17190]: sent [LCP EchoReq id=0x0
magic=0x2479cb91]
Sep 19 13:22:41 obzor pppd[17190]: rcvd [PAP AuthReq id=0x1 user="kpematop"
password=<hidden>]

--------------060604040603010400060207--



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Hi,

You can choose 32bit/64bit in the "Processor type" section. And only if You 
choose a processor that supports more than 32bit.

Did You try the config file included in the 2.4.18-smp kernel image package? 
Perhaps it's different in more than that SMP-section. So far for my ideas. If 
You still get problems, there is something to be fixed and the answering is 
up to an expert -- not me ;-) , sorry. I hope I could help You anyway.

Joerg


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On Thu, 2002-09-19 at 06:21, J.Steindlberger wrote:
> Hi,
> 
> You can choose 32bit/64bit in the "Processor type" section. And only if You 
> choose a processor that supports more than 32bit.

ie PA8x00 chipset.  From the hwdb the D350 has the following processor:
UL Proc 1-way T'100 (821/D250,D350) (Processor)  (PA7200 (PCX-T'))

so 64-bit would not be supported on this system.

- Ryan


> Did You try the config file included in the 2.4.18-smp kernel image package? 
> Perhaps it's different in more than that SMP-section. So far for my ideas. If 
> You still get problems, there is something to be fixed and the answering is 
> up to an expert -- not me ;-) , sorry. I hope I could help You anyway.
> 
> Joerg
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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Xref: news.gmane.org gmane.linux.ports.parisc:16177

On Thursday 19 September 2002 12:06, you wrote:
> Our IDE code has been run on non x86 platforms. It does require that the
> defaults are set right for the platform so that it doesnt do stuff like
> blindly probe I/O 0x170.
>
> I don't know if the Promise card needs its BIOS to have run, I would
> suspect not but can't be sure.

Hi Alan,

we tried a different controller with originally an eprom bios. We simply put 
that eeprom away. (The Promise has a chip-integrated flash bios - putting 
that away seems not to be possible.) The kernel crashed alike. Do You have 
any ideas to get more debug output? I could set up my second C-Class with 
parisc-linux and test it there. (The first one is now running some essential 
services - continued crashing would not be good.)

Then I will have a deep look into the linux-code (oh, I'll have to learn C) 
and search for that stupid (sorry) 0x170 probe.

Thanks a lot! You will read more...
Joerg


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Xref: news.gmane.org gmane.linux.ports.parisc:16178

Hello Thomas, Helge, Jo=EBl and everyone!

Here I am opening again that old thread. Ok. We had here a B180 with a
broken 8GB hard disk inside and nothing but a 4GB hard disk to fix it. =
So
we have fix the B180 and, as our software needs at least 8GB to run, I
though we could use this WS for testing purposes... with PA-Linux. So I=

installed the "Debian GNU/Linux 3.0 prerelease "Woody" - Unofficial hpp=
a
Binary-1" this morning.

Well, It's running smoothly... but i need to run also the XFree86... an=
d it
seems not to work. I've tested several configurations and all that I ge=
t is
an "(EE) No devices detected" error. Then, I searched the list and foun=
d
this:

On Sunday 05 August 2001 16:48, Thomas Bogendoerfer wrote:
> On Fri, Aug 03, 2001 at 12:45:01PM +0200, Helge Deller wrote:
> > Currently stifb will run on most 712 and 715 machines, while B160,
B180,
> > C3000 and most others won't.
>
> you saw X on the B180 I had at LinuxTag:-) Treating the EG VISULIZE a=
s an

> artist graphics card did the trick.

So X can work on a B180. Question is... How I do this?

Well, It's not a case of life-or-death, as we still can use HP-UX 10.20=
 on
this machine... but I'm the only Linux-supporter in my department, and =
so
it'd be a score to get this machine working with Linux.

Thanks in advance.

Fco. Javier Llorente Recio
Alcatel Espa=F1a, S.A.
SRD - Asistencia T=E9cnica (Ref. 02455)
Telefono - Phone (+34) 91 330 6877
M=F3vil - Mobile (+34) 636 482 505
ICQ 87013139
=




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From: Patrick Caulfield <patrick@tykepenguin.com>
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How do I go about trying to run HP/UX binaries on parisc-linux ?

In particular I would like to get bitkeeper running as there's an HP/UX binary
for that but no HP/Linux port :(

When I try to run the installer (or any of the binaries copied from the HP/UX
installation) I get

crt0: ERROR couldn't open /usr/lib/dld.sl errno:000000015

I've copied dld.sl from HP/UX into /usr/lib and my kernel has support for SOM
binaries in it. Is there anything else I need to do, or is it just not going to
work ?
-- 

patrick



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In reference to a message from Patrick Caulfield, dated Sep 19:
> How do I go about trying to run HP/UX binaries on parisc-linux ?
> 
> In particular I would like to get bitkeeper running as there's an HP/UX binary
> for that but no HP/Linux port :(

Bug Larry McVoy about it. :-) Apparently he was considering a palinux
port at some point.

we only support static SOM binaries on palinux....  from binfmt_som.c:

static inline int
do_load_som_library(struct file *f)
{
/* No lib support in SOM yet.  gizza chance.. */
        return -ENOEXEC;
}

randolph


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On Thu, Sep 19, 2002 at 08:27:56AM -0700, Randolph Chung wrote:
> Bug Larry McVoy about it. :-) Apparently he was considering a palinux
> port at some point.

no, don't bug Larry about it, he'll bug me for an A500... taggart,
did you have time to look into that yet?

-- 
Revolutions do not require corporate support.


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On Thu, Sep 19, 2002 at 08:27:56AM -0700, Randolph Chung wrote:
> In reference to a message from Patrick Caulfield, dated Sep 19:
> > How do I go about trying to run HP/UX binaries on parisc-linux ?
> > 
> > In particular I would like to get bitkeeper running as there's an HP/UX binary
> > for that but no HP/Linux port :(
> 
> Bug Larry McVoy about it. :-) Apparently he was considering a palinux
> port at some point.
> 
> we only support static SOM binaries on palinux....  from binfmt_som.c:
> 
> static inline int
> do_load_som_library(struct file *f)
> {
> /* No lib support in SOM yet.  gizza chance.. */
>         return -ENOEXEC;
> }

aha. That'll teach me to read the FAQ rather than the code :-)
 
patrick



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On Thu, Sep 19, 2002 at 07:51:31PM +0100, Patrick Caulfield wrote:
> > static inline int
> > do_load_som_library(struct file *f)
> > {
> > /* No lib support in SOM yet.  gizza chance.. */
> >         return -ENOEXEC;
> > }
> 
> aha. That'll teach me to read the FAQ rather than the code :-)

i'm not sure the comment is actually right... seems to me that ld.so
on hpux loads the libraries without going through this entry point.
it'd be interesting to test, but i think hpux emulation is broken right
now anyway.

-- 
Revolutions do not require corporate support.


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Matthew Wilcox writes...

> On Thu, Sep 19, 2002 at 08:27:56AM -0700, Randolph Chung wrote:
> > Bug Larry McVoy about it. :-) Apparently he was considering a palinux
> > port at some point.
> 
> no, don't bug Larry about it, he'll bug me for an A500... taggart,
> did you have time to look into that yet?

Oh yeah, I forgot. I will.

-- 
Matt Taggart        Linux R&D
taggart@fc.hp.com   HP Linux Systems Division




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Hello again,

I tried some more today, and I changed my setting to

#define DEFAULT_MODE 2

and recompiled and installed the new kernel, but it seems
the Voodoo2 is simply misconfigured by the driver. My monitor 
can take anything, so that's not the problem.

Are there any kernel parameters that I could try? Could it
be that my Voodoo2 is not compatible with Helge's?

I am on a Visualize C200.

Cheers,
Tobias



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j.steindlberger@gmx.de wrote:
> drivers. We disabled the following:
> [ ]     Generic PCI bus-master DMA support

hmm....ok.

> After compiling wie had these three modules:
> ide-mod.o
> ide-probe-mod.o
> ide-disk.o

No pdc202xx.o?

> An insmod ide-mod.o was possible. But after insmod ide-probe-mod the kernel
> crashes. In some cases we got an output with about 50 pages of memory
> addresses. At the beginning we got some messages told about the SYM-SCSI-devi
>   ce.
> Could that be a conflict?

I don't think so.

> We did not succeed to reproduce that and log it.
> 
> Here my questions:
> Did You here about anyone to succeed in using an IDE-controller in a
> HP-RISC-architecture?

Yes. My C3000 has IDE CD-ROM hanging off the "SuckyIO" chip.
That works using PIO mode thanks to Randolph Chung/Thomas Bogendoerfer.

> Do You see a chance to use IDE-disks in future (with some none
> HP-controller)

yes - but I don't expect it to "just work".
IDE is a PoS with lots of buggy HW.
PARISC isn't very tolerant of many things the x86 PCs tolerate.
(eg access to disabled devices, PCI parity errors)

> Do You know about more people who are interrested in what we tried to do?

I don't offhand. If someone is, I ask they contact you directly.
Please continue to post status here and I'll offer advice when I can.

> That would be an argument for me to continue experimenting.

If you get it working, I'd be happy to help put any changes back
into our source tree and ultimately back to Alan Cox/Linus.

...
> > #define PDC202XX_DEBUG_DRIVE_INFO               0
> > #define PDC202XX_DECODE_REGISTER_INFO           0
> > 
> >   and rebuild the module with that.
> > 
> > 3) post the console log and "ser pim" output at PDC prompt.

Using a serial console makes it easier to grab console logs in
the case were the machine is crashing.

Generally, I can help decode HPMCs and explain what might be wrong.
That's what the "ser pim" output is for.

I really need both to debug most IO problems.


grant


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Istvan Gyenes wrote:
> Hello Joerg,
> 
> The only difference between the non-smp and smp kernel config file is
> CONFIG_SMP=yes , AFAIK.
> I made a "make menuconfig" and the only thing I've changed is SMP support.

I'm paranoid. I do "make distclean" when doing anything other than
adding/removing drivers. Save/restore the .config if you need to before
running "make distclean".  I don't trust the Makefiles to rebuild
everything correctly for "global" CONFIG_ changes like "SMP".

> The strange thing is that the precompiled smp kernel from the install cd
> boots fine. (2.4.18-smp)

SMP on 2.4.19 isn't as stable yet.  So that's no surprise.

If you want to debug this further, define "EARLY_BOOTUP_DEBUG"
in arch/parisc/kernel/pdc_cons.c and you should get more output
about how far the kernel gets before it crashes/hangs.

grant


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"J.Steindlberger" wrote:
> The kernel crashed alike. Do You have any ideas to get more debug output?

If the crash was an "HPMC", then "ser pim" at PDC prompt will
tell you machine state and why it crashed. If the crash
was a regular panic, the console output will tell the reason, where,
and give a register dump. Post either or both of those here
and we can try to decode it for you.

grant


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Francisco_Javier.Llorente_Recio@alcatel.es wrote:
> Well, It's running smoothly... but i need to run also the XFree86...
> and it seems not to work. I've tested several configurations and all
> that I get is an "(EE) No devices detected" error.

Works For Me(tm).
Uploaded my XF86 config file to:
	ftp://ftp.parisc-linux.org/kernels/b180/XF86Config-4.ggg

and currently running kernel:
	ftp://ftp.parisc-linux.org/kernels/b180/2.4.19-pa10.tgz

Kernels found in kernels/32/ on the same server should work just as well.

grant


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From: Andreas Seltenreich <s_selten@informatik.uni-karlsruhe.de>
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Subject: [parisc-linux] partial success with matroxfb
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--hUH5gZbnpyIv7Mn4
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Hello list,

here is a report about my experiments with a "Matrox Mystique" in
a C200. The attached diff shows the _temporary_ changes I made to the
matroxfb.

I replaced the {read,write}{b,w,l} calls to their __raw equivalents,
because Petr Vandrovec told me that matroxfb expects them to do BE to
PCI on BE machines. I had no success when running the card in LE mode.

After modprobing the module with noinit=0 the frame buffer seems to be 
up and working. I can use fbset on the device and display text by 
writing to /dev/tty1. But as soon as there is much traffic (like ping
-f through a NIC or disk i/o) on the PCI bus, the kernel hangs. 

testing was done with 2.4.19-pa17

This is the output of PIM after doing a TOC:

=============

-----------------  Processor 0 HPMC Information ------------------

Timestamp =   Mon Sep  16 01:49:14 GMT 2002    (20:02:09:16:01:49:14)

HPMC Chassis Codes = 0xcbf0  0x5002  0x540f  0x5508  0xcbfb  

General Registers 0 - 31
00-03   0000000000000000  fffffffffff0bdc0  00000000f3ef8000  00000000f3ef8002
04-07   000000001fb9d940  000000000000000f  000000000000003b  00000000103d2010
08-11   000000000000000f  000000000000004d  000000000004000e  00000000103705ac
12-15   0000000000000000  0000000000000000  00000000000000fd  00000000f0100000
16-19   00000000103b45c0  00000000f000020c  00000000f0000204  00000000000000de
20-23   000000000000000e  00000000000003e8  000000000bebc200  00000000000f4240
24-27   0000000000000000  00000000000f4240  05f5e10000000032  00000000102fa010
28-31   000000001fb9dd6c  17d78400000000c8  00000000103b4980  000000000004d518

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   00000000000000a0  0000000000000000  00000000000000c0  000000000000001f
12-15   0000000000000000  0000000000000000  0000000000107000  00000000f0000000
16-19   00000024a0d4f160  0000000000000000  000000000004d534  0000000000141860
20-23   0000000000000000  0000000000000000  000000ff0004fc0c  0000000000000000
24-27   000000000031c000  000000000f022000  00000000ffffffff  00000000ffffffff
28-31   00000000ffffffff  00000000ffffffff  00000000103b4000  00000000103b8000

Space Registers 0 - 7
00-03   00000000          00000000          00000000          00000050
04-07   00000000          00000000          00000000          00000000

<Press any key to continue (q to quit)> 

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x000000000004d538
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00305004
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000fff3ef8002
System Requestor Address     = 0xfffffffffffa0000
Check Summary                = 0x8000000810004000
Available Memory             = 0x0000000000000000
CPU Diagnose Register 2      = 0x0501000000000004
CPU Status Register 0        = 0x1420c20000000000
CPU Status Register 1        = 0x8000000800000000
SADD LOG                     = 0x7f1fde477f7fde47
Read Short LOG               = 0xc10200fff3ef8002

<Press any key to continue (q to quit)> 

Memory Error Log Information:

Timestamp =   Mon Sep  16 01:49:14 GMT 2002    (20:02:09:16:01:49:14)

   No memory errors logged


I/O Module Error Log Information:

Timestamp =   Mon Sep  16 01:49:16 GMT 2002    (20:02:09:16:01:49:16)

Bus    HPA       Module Type      Path  Slt Md Sev  Estat Requestor  Responder
--- ---------- ---------------- -------- -- -- ---- ----- ---------- ----------
 0  0xfff88000 I/O Adapter      8         2  0  he   0x3d 0xf2000000 0x000a1000 
 0  0xfff8a000 I/O Adapter      10        2  2  he   0x0d 0x00000000 0x00000000 

=============

I suspect that there's something wrong with the pci bus, but I couldn't
decode it further.

here is the log from modprobing the module:

================
matroxfb: Matrox Mystique 220 (PCI) detected
matroxfb: Your Matrox device does not have BIOS
post_shift_max: 3
ref_freq: 14318
freq: 133333
vco_freq_min: 62000
in_div_min: 1
in_div_max: 31
feed_div_min: 100
feed_div_max: 127
fmax: 220000
clk: 0C 78 00 14318 133267 66666
requested 640*480/8bpp (640*6547)
matroxfb: 640x480x8bpp (virtual: 640x6547)
matroxfb: framebuffer at 0xF3000000, mapped to 0xf3000000, size
4194304
requested 640*480/8bpp (640*6547)
post_shift_max: 3
ref_freq: 14318
freq: 25175
vco_freq_min: 62000
in_div_min: 1
in_div_max: 31
feed_div_min: 100
feed_div_max: 127
fmax: 220000
clk: 08 7E 03 14318 202042 50350
matroxfb: Pixel PLL not locked after 5 secs
MiscOutReg: 8B
SEQ regs:   00:01:0F:00:0E:
GDC regs:   00:00:00:00:00:40:05:0F:FF:
CRTC regs:
5F:4F:4F:83:51:9D:0B:3E:00:40:00:00:00:00:00:00:E9:2B:DF:28:00:DF:0C:C3:FF:
ATTR regs:
00:01:02:03:04:05:06:07:08:09:0A:0B:0C:0D:0E:0F:41:FF:0F:00:00:
requested 640*480/8bpp (640*6547)
post_shift_max: 3
ref_freq: 14318
freq: 25175
vco_freq_min: 62000
in_div_min: 1
in_div_max: 31
feed_div_min: 100
feed_div_max: 127
fmax: 220000
clk: 08 7E 03 14318 202042 50350
MiscOutReg: 8B
SEQ regs:   00:01:0F:00:0E:
GDC regs:   00:00:00:00:00:40:05:0F:FF:
CRTC regs:
5F:4F:4F:83:51:9D:0B:3E:00:40:00:00:00:00:00:00:E9:2B:DF:28:00:DF:0C:C3:FF:
ATTR regs:
00:01:02:03:04:05:06:07:08:09:0A:0B:0C:0D:0E:0F:41:FF:0F:00:00:
Console: switching to colour frame buffer device 80x30
fb0: MATROX VGA frame buffer device

=============

anotherhpmachien:~# cat /proc/pci 
PCI devices found:
  Bus  0, device   1, function  0:
    VGA compatible controller: Matrox Graphics, Inc. MGA 1064SG [Mystique] (rev 3).
      IRQ 97.
      Master Capable.  Latency=248.  
      Prefetchable 32 bit memory at 0xf3000000 [0xf37fffff].
      Non-prefetchable 32 bit memory at 0xf3ffc000 [0xf3ffffff].
  Bus  0, device  19, function  0:
    SCSI storage controller: LSI Logic / Symbios Logic (formerly NCR) 53c875 (rev 4).
      IRQ 99.
      Master Capable.  Latency=255. Min Gnt=17.Max Lat=64.
      I/O at 0xfe00 [0xfeff].
      Non-prefetchable 32 bit memory at 0xf3ff9000 [0xf3ff90ff].
      Non-prefetchable 32 bit memory at 0xf3ffa000 [0xf3ffafff].
  Bus  0, device  20, function  0:
    Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 48).
      IRQ 96.
      Master Capable.  Latency=255.  Min Gnt=20.Max Lat=40.
      I/O at 0xff00 [0xff7f].
      Non-prefetchable 32 bit memory at 0xf3ffb000 [0xf3ffb07f].

=============
anotherhpmachien:~# cat /proc/iomem 
00000000-0fffffff : System RAM
  00000000-000009ff : PDC data (Page Zero)
  00100000-002f3fff : Kernel code
  002f4000-003f9f3f : Kernel data
f0190001-f0190001 : led_data
f1000000-f1ffffff : GSC Bus [10/]
  f1000000-f1000fff : Cujo
f2000000-f3ffffff : GSC Bus [8/]
  f2000000-f2000fff : Dino
  f2003000-f2003fff : Serial RS232
  f2800000-f2ffffff : Dino LMMIO
  f3000000-f37fffff : matroxfb FB
  f3ffb000-f3ffb07f : tulip
  f3ffc000-f3ffffff : matroxfb MMIO
f4000000-fff7ffff : GSC Bus [8/]
  ffd00000-ffdfffff : Lasi
    ffd00000-ffd00fff : Lasi
    ffd02000-ffd02fff : Parallel
    ffd04000-ffd04fff : Lasi Harmony
    ffd05000-ffd05fff : Serial RS232
    ffd06000-ffd06fff : Lasi SCSI
    ffd08000-ffd08fff : Lasi psaux
fff80000-fffaffff : Central Bus
  fff88000-fff88fff : U2/Uturn
  fff8a000-fff8afff : U2/Uturn
  fffa0000-fffa0fff : CPU
fffb0000-fffdffff : Local Broadcast
fffe0000-ffffffff : Global Broadcast

thanks
andreas

--hUH5gZbnpyIv7Mn4
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="temporary-changes.diff"

--- linux/drivers/video/matrox/matroxfb_base.h	Mon Aug  5 02:12:55 2002
+++ linux/drivers/video/matrox/matroxfb_base.h	Fri Sep 20 01:13:54 2002
@@ -10,10 +10,12 @@
 
 /* general, but fairly heavy, debugging */
 #undef MATROXFB_DEBUG
+#define MATROXFB_DEBUG
 
 /* heavy debugging: */
 /* -- logs putc[s], so everytime a char is displayed, it's logged */
 #undef MATROXFB_DEBUG_HEAVY
+#define MATROXFB_DEBUG_HEAVY
 
 /* This one _could_ cause infinite loops */
 /* It _does_ cause lots and lots of messages during idle loops */
@@ -21,9 +23,11 @@
 
 /* Debug register calls, too? */
 #undef MATROXFB_DEBUG_REG
+#define MATROXFB_DEBUG_REG
 
 /* Guard accelerator accesses with spin_lock_irqsave... */
 #undef MATROXFB_USE_SPINLOCKS
+#define MATROXFB_USE_SPINLOCKS
 
 #include <linux/config.h>
 #include <linux/module.h>
@@ -108,7 +112,7 @@
 #endif
 #endif
 
-#if defined(__alpha__) || defined(__m68k__)
+#if defined(__alpha__) || defined(__m68k__) || defined(__hppa__)
 #define READx_WORKS
 #define MEMCPYTOIO_WORKS
 #else
@@ -174,27 +178,33 @@
 
 #ifdef READx_WORKS
 static inline unsigned int mga_readb(vaddr_t va, unsigned int offs) {
+	return __raw_readb(va.vaddr + offs);
 	return readb(va.vaddr + offs);
 }
 
 static inline unsigned int mga_readw(vaddr_t va, unsigned int offs) {
+	return __raw_readw(va.vaddr + offs);
 	return readw(va.vaddr + offs);
 }
 
 static inline u_int32_t mga_readl(vaddr_t va, unsigned int offs) {
+	return __raw_readl(va.vaddr + offs);
 	return readl(va.vaddr + offs);
 }
 
 static inline void mga_writeb(vaddr_t va, unsigned int offs, u_int8_t value) {
-	writeb(value, va.vaddr + offs);
+//	writeb(value, va.vaddr + offs);
+	__raw_writeb(value, va.vaddr + offs);
 }
 
 static inline void mga_writew(vaddr_t va, unsigned int offs, u_int16_t value) {
-	writew(value, va.vaddr + offs);
+//	writew(value, va.vaddr + offs);	
+	__raw_writew(value, va.vaddr + offs);
 }
 
 static inline void mga_writel(vaddr_t va, unsigned int offs, u_int32_t value) {
-	writel(value, va.vaddr + offs);
+//	writel(value, va.vaddr + offs);	
+	__raw_writel(value, va.vaddr + offs);
 }
 #else
 static inline unsigned int mga_readb(vaddr_t va, unsigned int offs) {

--hUH5gZbnpyIv7Mn4--


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>On Thursday 19 September 2002 12:06, you wrote:

>we tried a different controller with originally an eprom bios. We simply =
put=20
>that eeprom away. (The Promise has a chip-integrated flash bios - =
putting=20
>that away seems not to be possible.) The kernel crashed alike. Do You =
have=20
>any ideas to get more debug output? I could set up my second C-Class =
with=20
>parisc-linux and test it there. (The first one is now running some =
essential=20
>services - continued crashing would not be good.)
>
I have successfully run a PDC20265 Promise card on an Alpha, so the BIOS
is not needed to use it from Linux.

Kind regards,
Jurriaan



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On Friday 20 September 2002 02:27, Andreas Seltenreich wrote:
> Hello list,
>
> here is a report about my experiments with a "Matrox Mystique" in
> a C200. The attached diff shows the _temporary_ changes I made to the
> matroxfb.
>
> I replaced the {read,write}{b,w,l} calls to their __raw equivalents,
> because Petr Vandrovec told me that matroxfb expects them to do BE to
> PCI on BE machines. I had no success when running the card in LE mode.


Hi Andreas,

instead of 

 static inline unsigned int mga_readb(vaddr_t va, unsigned int offs) {
+	return __raw_readb(va.vaddr + offs);
- 	return readb(va.vaddr + offs);
 }

I think you should use the
	fb_readXXX() and fb_writeXX()
functions from include/video/fbcon.h which are automatically
initialized correctly acording to the architecture.

Greetings,
Helge


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From: Istvan Gyenes <frts@simba.sch.bme.hu>
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Thanks I'll try that!

Another question: If 2.4.19 SMP not enough stable where can I find the
latest stable smp kernel source?

Thanks,

__
Steve

On Thu, 19 Sep 2002, Grant Grundler wrote:

> Istvan Gyenes wrote:
> > Hello Joerg,
> >
> > The only difference between the non-smp and smp kernel config file is
> > CONFIG_SMP=yes , AFAIK.
> > I made a "make menuconfig" and the only thing I've changed is SMP support.
>
> I'm paranoid. I do "make distclean" when doing anything other than
> adding/removing drivers. Save/restore the .config if you need to before
> running "make distclean".  I don't trust the Makefiles to rebuild
> everything correctly for "global" CONFIG_ changes like "SMP".
>
> > The strange thing is that the precompiled smp kernel from the install cd
> > boots fine. (2.4.18-smp)
>
> SMP on 2.4.19 isn't as stable yet.  So that's no surprise.
>
> If you want to debug this further, define "EARLY_BOOTUP_DEBUG"
> in arch/parisc/kernel/pdc_cons.c and you should get more output
> about how far the kernel gets before it crashes/hangs.
>
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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On 20 Sep 02 at 2:27, Andreas Seltenreich wrote:

> Bus    HPA       Module Type      Path  Slt Md Sev  Estat Requestor  Responder
> --- ---------- ---------------- -------- -- -- ---- ----- ---------- ----------
>  0  0xfff88000 I/O Adapter      8         2  0  he   0x3d 0xf2000000 0x000a1000 
>  0  0xfff8a000 I/O Adapter      10        2  2  he   0x0d 0x00000000 0x00000000 

> anotherhpmachien:~# cat /proc/iomem 
> 00000000-0fffffff : System RAM
> f2000000-f3ffffff : GSC Bus [8/]

Hi Andreas,
  boot with 'video=matrox:novga'. It looks like that Matrox responded
to the access to legacy VGA region 0xA0000-0xBFFFF. It does not happen
when CPU accesses this memory because of Matrox does not see this access
at all in such situation, because of host bridge directs it immediately 
to the system ram, without accessing PCI. But when access originated from 
some PCI busmaster, other PCI devices sees this access, and Mystique
claims it.

  And now both host bridge (for system RAM) and Mystique (for VGA region)
accepted bus cycle, and hardware went mad...

  I have no idea what second error reports, but it may be just triggered
by previous one.
                                                            Petr Vandrovec
                                                            


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Hey Stephan,

IIRC the solution is to re-compile the kernel with option "PPP  support 
for sync tty ports" and not async (as usual). It solved this problem for me.

I hope it will help you too,

	Joel



Stephan Trajkoff wrote:
> Hello, please see the attachment.
> I use 2.4.18-pa61 kernel and enabled PPP support
> PPPD version is 2.4.1, PPTPD is 1.1.3
> 
> 
> ------------------------------------------------------------------------
> 
> Sep 19 13:22:41 obzor pppd[17190]: read: Resource temporarily unavailable
> Sep 19 13:22:41 obzor pppd[17190]: read /dev/ppp: Resource temporarily
> unavailable
> Sep 19 13:22:41 obzor pppd[17190]: rcvd [LCP ConfAck id=0x1 <asyncmap 0x0>
> <auth pap> <magic 0x2479cb91> <pcomp> <accomp>]
> Sep 19 13:22:41 obzor pppd[17190]: sent [LCP EchoReq id=0x0
> magic=0x2479cb91]
> Sep 19 13:22:41 obzor pppd[17190]: rcvd [PAP AuthReq id=0x1 user="kpematop"
> password=<hidden>]




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hey all,

Is that bkp sources (command line are enough for me) are available 
somewhere now? (and where?)

Thanks for info,
	Joel


Matt Taggart wrote:
> Matthew Wilcox writes...
> 
> 
>>On Thu, Sep 19, 2002 at 08:27:56AM -0700, Randolph Chung wrote:
>>
>>>Bug Larry McVoy about it. :-) Apparently he was considering a palinux
>>>port at some point.
>>
>>no, don't bug Larry about it, he'll bug me for an A500... taggart,
>>did you have time to look into that yet?
> 
> 
> Oh yeah, I forgot. I will.
> 




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Hi Petr,
	
* Petr Vandrovec <VANDROVE@vc.cvut.cz> [2002-09-20 12:12]:
>   boot with 'video=matrox:novga'. It looks like that Matrox responded

No success with novga or no_pci_retry either. It results in the same crash. 

> Can you print DAC registers 0x4C,0x4D,0x4E,0x4F after this message?
> 0x4C..0x4E should contain 8,7E,3, and 0x4F should contain 0 when
> PLL is not locked, and 0x40 if PLL is locked.

Ok, the code around the message now looks like this:

     if (!tmout)
	printk(KERN_ERR "matroxfb: Pixel PLL not locked after 5 secs\n");	
     for (i=0x4c; i<0x50; i++)
        printk(KERN_INFO "DAC register %02x=%x\n", i, inDAC1064(i));

It looks like m1064_compute() is called twice and succeeds the second 
time:

==========
anotherhpmachien:/usr/src/linux# modprobe matroxfb_base noinit=0 no_pci_retry=1  novga=1
Warning: /lib/momatroxfb: Matrox Mystique 220 (PCI) detected
dules/2.4.19-pa1post_shift_max: 3
7/kernel/driversref_freq: 14318
/video/matrox/mafreq: 133333
troxfb_base.o syvco_freq_min: 62000
mbol for parametin_div_min: 1
er mtrr not founin_div_max: 31
d
feed_div_min: 100
feed_div_max: 127
fmax: 220000
clk: 0C 78 00 14318 133267 66666
requested 640*480/8bpp (640*6547)
matroxfb: 640x480x8bpp (virtual: 640x6547)
matroxfb: framebuffer at 0xF3000000, mapped to 0xf3000000, size
4194304
requested 640*480/8bpp (640*6547)
post_shift_max: 3
ref_freq: 14318
freq: 25175
vco_freq_min: 62000
in_div_min: 1
in_div_max: 31
feed_div_min: 100
feed_div_max: 127
fmax: 220000
clk: 08 7E 03 14318 202042 50350
matroxfb: Pixel PLL not locked after 5 secs
DAC register 4c=8
DAC register 4d=7e
DAC register 4e=1f
DAC register 4f=0
MiscOutReg: 8B
SEQ regs:   00:01:0F:00:0E:
GDC regs:   00:00:00:00:00:40:05:0F:FF:
CRTC regs:  5F:4F:4F:83:51:9D:0B:3E:00:40:00:00:00:00:00:00:E9:2B:DF:28:00:DF:0C:C3:FF:
ATTR regs:  00:01:02:03:04:05:06:07:08:09:0A:0B:0C:0D:0E:0F:41:FF:0F:00:00:
requested 640*480/8bpp (640*6547)
post_shift_max: 3
ref_freq: 14318
freq: 25175
vco_freq_min: 62000
in_div_min: 1
in_div_max: 31
feed_div_min: 100
feed_div_max: 127
fmax: 220000
clk: 08 7E 03 14318 202042 50350
DAC register 4c=8
DAC register 4d=7e
DAC register 4e=1f
DAC register 4f=40
MiscOutReg: 8B
SEQ regs:   00:01:0F:00:0E:
GDC regs:   00:00:00:00:00:40:05:0F:FF:
CRTC regs:  5F:4F:4F:83:51:9D:0B:3E:00:40:00:00:00:00:00:00:E9:2B:DF:28:00:DF:0C:C3:FF:
ATTR regs:  00:01:02:03:04:05:06:07:08:09:0A:0B:0C:0D:0E:0F:41:FF:0F:00:00:
Console: switching to colour frame buffer device 80x30
fb0: MATROX VGA frame buffer device
anotherhpmachien:/usr/src/linux# sync
anotherhpmachien:/usr/src/linux# ping -f athlon
PING athlon (192.168.0.11): 56 data bytes
............

kernel BUG at printk.c:489!
* box reboots
`INIT C4CC
INIT C4CF
INIT C4CD
[...]
Main Menu: Enter command > ser pim

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp =   Fri Sep  20 13:55:23 GMT 2002    (20:02:09:20:13:55:23)

HPMC Chassis Codes = 0xcbf0  0x5002  0x540f  0x5508  0xcbfb  

General Registers 0 - 31
00-03   0000000000000000  0000000010368010  000000001024382c  0000000000000001
04-07   0000000000000006  000000001031e810  00000000103c0918  00000000103e2010
08-11   000000000000000f  000000000000004d  000000000004000e  000000001037c5ac
12-15   0000000000000000  0000000000000000  00000000103e3010  00000000103e3010
16-19   00000000103e2810  00000000103e2cdc  000000001031f810  00000000f3fffc0a
20-23   000000000000000e  000000000000000e  0000000000000001  0000000000919dda
24-27   0000000000000001  0000000000000001  00000000ffffff9d  0000000010304010
28-31   0000000000000010  0000000000004001  00000000103c0a40  00000000103e2010

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   000000000000057a  0000000000000000  00000000000000c0  000000000000000a
12-15   0000000000000000  0000000000000000  0000000000107000  00000000f0000000
16-19   0000000712615173  0000000000000000  0000000010243858  0000000000141860
20-23   000000009207ffcf  c0000000fffffc00  000000000004010c  0000000000000000
24-27   0000000000326000  000000000f6d1000  00000000ffffffff  00000000ffffffff
28-31   00000000ffffffff  00000000ffffffff  00000000103c0000  00000000103c8000

Space Registers 0 - 7
00-03   00000000          00000000          00000000          000002bd
04-07   00000000          00000000          00000000          00000000

<Press any key to continue (q to quit)> 

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x000000001024385c
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00305004
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000fff3fffc0a
System Requestor Address     = 0xfffffffffffa0000
Check Summary                = 0x8000000810004000
Available Memory             = 0x0000000000000000
CPU Diagnose Register 2      = 0x0501000000000004
CPU Status Register 0        = 0x1420c20000000000
CPU Status Register 1        = 0x8000000800000000
SADD LOG                     = 0x0f0810940f481094
Read Short LOG               = 0xc14200fff3fffc0a

<Press any key to continue (q to quit)> 

Memory Error Log Information:

Timestamp =   Fri Sep  20 13:55:23 GMT 2002    (20:02:09:20:13:55:23)

   No memory errors logged


I/O Module Error Log Information:

Timestamp =   Fri Sep  20 13:55:25 GMT 2002    (20:02:09:20:13:55:25)

Bus    HPA       Module Type      Path  Slt Md Sev  Estat Requestor  Responder
--- ---------- ---------------- -------- -- -- ---- ----- ---------- ----------
 0  0xfff88000 I/O Adapter      8         2  0  he   0x3d 0xf2000000 0x000a1000 
 0  0xfff8a000 I/O Adapter      10        2  2  he   0x0d 0x00000000 0x00000000 

regards
andreas


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Hallo Helge,
	
* Helge Deller <deller@gmx.de> [2002-09-20 09:25]:
> instead of 
> 
>  static inline unsigned int mga_readb(vaddr_t va, unsigned int offs) {
> +	return __raw_readb(va.vaddr + offs);
> - 	return readb(va.vaddr + offs);
>  }
> 
> I think you should use the
> 	fb_readXXX() and fb_writeXX()
> functions from include/video/fbcon.h which are automatically
> initialized correctly acording to the architecture.

I fear this would still break m68k because it is defined differently
in include/video/fbcon.h than in include/asm-m68k/io.h. matroxfb is
currently using the definition from io.h.

regards
andreas


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On 20 Sep 02 at 17:50, Andreas Seltenreich wrote:
> * Petr Vandrovec <VANDROVE@vc.cvut.cz> [2002-09-20 12:12]:
> >   boot with 'video=matrox:novga'. It looks like that Matrox responded
> 
> No success with novga or no_pci_retry either. It results in the same crash. 

Can you verify (with lspci -xxx) that PCI dword register 0x40 in matroxfb
configuration space has not set bit 8 (it is lowest bit in register
0x41). 0=>disable legacy VGA, 1=>enable legacy VGA. Old Millennium I
always responded to framebuffer accesses, and it was fixed in Millennium II.
I thought that it was fixed in Mystique too. You can fix it with
setpci, if matroxfb gets it wrong.

> > Can you print DAC registers 0x4C,0x4D,0x4E,0x4F after this message?
> > 0x4C..0x4E should contain 8,7E,3, and 0x4F should contain 0 when
> > PLL is not locked, and 0x40 if PLL is locked.
> 
> Ok, the code around the message now looks like this:

> DAC register 4c=8
> DAC register 4d=7e
> DAC register 4e=1f
> DAC register 4f=0

Strange. Stalls it for 5 seconds here, or goes it through immediately?

> DAC register 4c=8
> DAC register 4d=7e
> DAC register 4e=1f
> DAC register 4f=40

                                                            Petr
                                                            


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* Petr Vandrovec <VANDROVE@vc.cvut.cz> [2002-09-20 18:12]:
> Can you verify (with lspci -xxx) that PCI dword register 0x40 in
> matroxfb
> configuration space has not set bit 8 (it is lowest bit in register
> 0x41). 0=>disable legacy VGA, 1=>enable legacy VGA. Old Millennium I
> always responded to framebuffer accesses, and it was fixed in
> Millennium II.
> I thought that it was fixed in Mystique too. You can fix it with
> setpci, if matroxfb gets it wrong.

apparently it is set:
40: 00 01 00 5f 00 00 00 00 ff ff ff ff 00 00 00 00

If I modporbe it without setting it, the bit keeps set:
40: 21 4f 09 df 00 3c 00 00 06 ff ff 06 00 00 00 00

after manually setting it to 0 and modprobing matroxfb it kept the zero:
40: 21 4e 09 df 00 3c 00 00 10 ff ff 10 00 00 00 00

but the crash still occured.

> Strange. Stalls it for 5 seconds here, or goes it through immediately?

I can't notice any delay when it passes the second time.

regards
andreas



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--opigilh--


From - Thu Nov 08 21:24:40 2018
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] SMP kernel problems on a D350
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> Thanks I'll try that!
> 
> Another question: If 2.4.19 SMP not enough stable where can I find the
> latest stable smp kernel source?
> 
> Thanks,
> 
> Steve

Nothing up this sleeve, nothing up this sleeve...
<carlos pulls a stable smp kernel out of his hat>

Tada! ;)

I'm not quite certain that we ever had a stable
SMP kernel. While an older kernel might seem to 
give you SMP stability, it does so at the cost of 
speed and the introduction of old bugs.

If you can find some test cases for Non-SMP vs.
SMP stability, then we'll be a step in the right 
direction.

c.



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From: Jeremy Drake <jeremyd@apptechsys.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SMP kernel problems on a D350
Date: Fri, 20 Sep 2002 13:02:59 -0700 (PDT)
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On Fri, 20 Sep 2002, Carlos O'Donell wrote:

> > Thanks I'll try that!
> > 
> > Another question: If 2.4.19 SMP not enough stable where can I find the
> > latest stable smp kernel source?
> > 
> > Thanks,
> > 
> > Steve
> 
> Nothing up this sleeve, nothing up this sleeve...
> <carlos pulls a stable smp kernel out of his hat>
> 
> Tada! ;)
> 
> I'm not quite certain that we ever had a stable
> SMP kernel. While an older kernel might seem to 
> give you SMP stability, it does so at the cost of 
> speed and the introduction of old bugs.

For me, the last kernel that didn't crash on my J5000 in smp mode while
doing apt-get update was kernel-image-2.4.17-32-smp_23.1_hppa.deb

I wouldn't recommend using it, however...
> 
> If you can find some test cases for Non-SMP vs.
> SMP stability, then we'll be a step in the right 
> direction.
> 
> c.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 
Mason's First Law of Synergism:
	The one day you'd sell your soul for something, souls are a glut.



From - Thu Nov 08 21:24:41 2018
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From: Bdale Garbee <bdale@gag.com>
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jeremyd@apptechsys.com (Jeremy Drake) writes:

> For me, the last kernel that didn't crash on my J5000 in smp mode while
> doing apt-get update was kernel-image-2.4.17-32-smp_23.1_hppa.deb

I've had good luck with the 2.4.19 kernel images I've uploaded to unstable,
which are built and running on my J5000 in 64-bit SMP mode.  I don't promise
they're "stable", but the apt-get update problem is gone.

Bdale


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> 
> For me, the last kernel that didn't crash on my J5000 in smp mode while
> doing apt-get update was kernel-image-2.4.17-32-smp_23.1_hppa.deb
> 
> I wouldn't recommend using it, however...

If I _wasn't_ using my A500 for contiual binutils/glibc/gcc 
builds, I'd be testing out the SMP problems :)

When running an SMP kernel and doing multiple compiles, the 
box was rather unsuable e.g. random process death.

As Randolph noted to me on IRC, it looks like fixing the mmap
issues we have would be a step in the right direction. When I
get my current projects completed (glibc fixing)... I want to
look at this :) then again, maybe I'll be doing glibc work for
the rest of my usefull days ;)

We also fail many of the LTP tests having to do with
signals, mmap'ing, and direct IO.

c.



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> When running an SMP kernel and doing multiple compiles, the 
> box was rather unsuable e.g. random process death.

Is there a way to turn off the unaligned handler?  It may be hiding
bad stuff going on in userland.  There are still cases where expect
causes a continuous sequence of unaligned faults.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Is there a way to turn off the unaligned handler?  It may be hiding
> bad stuff going on in userland.  There are still cases where expect
> causes a continuous sequence of unaligned faults.

not at runtime, but i can build a kernel with this turned off and let
you test it.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> 
> > For me, the last kernel that didn't crash on my J5000 in smp mode while
> > doing apt-get update was kernel-image-2.4.17-32-smp_23.1_hppa.deb
> 
> I've had good luck with the 2.4.19 kernel images I've uploaded to unstable,
> which are built and running on my J5000 in 64-bit SMP mode.  I don't promise
> they're "stable", but the apt-get update problem is gone.

What type of workloads do you have that machine doing?

c.
 


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> > Is there a way to turn off the unaligned handler?  It may be hiding
> > bad stuff going on in userland.  There are still cases where expect
> > causes a continuous sequence of unaligned faults.
> 
> not at runtime, but i can build a kernel with this turned off and let
> you test it.
> 
> randolph

Would be nice to have a proc interface for this.
I would like to do consecutive testing with it 
enabled and disabled.

c.



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--hvgmmdq--


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] SMP kernel problems on a D350
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> > Is there a way to turn off the unaligned handler?  It may be hiding
> > bad stuff going on in userland.  There are still cases where expect
> > causes a continuous sequence of unaligned faults.
> 
> not at runtime, but i can build a kernel with this turned off and let
> you test it.

Is there any software that actually needs the unaligned handler?
I think it would be useful for test purposes to have a kernel with
it off.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Is there any software that actually needs the unaligned handler?
> I think it would be useful for test purposes to have a kernel with
> it off.

off the top of my head....

in the kernel, the usb driver has some unaligned accesses.

in userspace, several of the network utilities (tcpdump, nmap, etc) make
unaligned accesses

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On 20 Sep 2002, Bdale Garbee wrote:

> jeremyd@apptechsys.com (Jeremy Drake) writes:
> 
> > For me, the last kernel that didn't crash on my J5000 in smp mode while
> > doing apt-get update was kernel-image-2.4.17-32-smp_23.1_hppa.deb
> 
> I've had good luck with the 2.4.19 kernel images I've uploaded to unstable,
> which are built and running on my J5000 in 64-bit SMP mode.  I don't promise
> they're "stable", but the apt-get update problem is gone.
I have installed 2.4.19-32-smp and 2.4.19-64-smp from unstable.  The 
32-bit one seems to still have the apt-get update problem, and will not 
run X (no surprise there).  However, 64bit seems to be fairly stable (will 
do apt-get update and will run X).  And here I thought 64-bit was LESS 
stable than 32 :)  


 > > Bdale
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 
The rose of yore is but a name, mere names are left to us.



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Sorry for replying to myself, but I forgot to mention the one problem I 
have had with the 2.4.19-64-smp so far.  Setserial locked it up on 
2.4.19-64-smp (no hpmc or error message, just locked up).  After disabling 
setserial, everything was fine.


 On Fri, 20 Sep 2002, Jeremy Drake wrote:

> On 20 Sep 2002, Bdale Garbee wrote:
> 
> > jeremyd@apptechsys.com (Jeremy Drake) writes:
> > 
> > > For me, the last kernel that didn't crash on my J5000 in smp mode while
> > > doing apt-get update was kernel-image-2.4.17-32-smp_23.1_hppa.deb
> > 
> > I've had good luck with the 2.4.19 kernel images I've uploaded to unstable,
> > which are built and running on my J5000 in 64-bit SMP mode.  I don't promise
> > they're "stable", but the apt-get update problem is gone.
> I have installed 2.4.19-32-smp and 2.4.19-64-smp from unstable.  The 
> 32-bit one seems to still have the apt-get update problem, and will not 
> run X (no surprise there).  However, 64bit seems to be fairly stable (will 
> do apt-get update and will run X).  And here I thought 64-bit was LESS 
> stable than 32 :)  
> 
> 
>  > > Bdale
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> 
> 

-- 
"You need tender loving care once a week - so that I can slap you into shape."
- Ellyn Mustard



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Well things seem to be getting better on my 580

k580:~# uname -a                            
Linux k580 2.4.19-pa18 #26 SMP Sat Sep 21 09:09:22 EST 2002 parisc
unknown

k580:~# apt-get update  
Get:1 http://ftp.au.debian.org unstable/main Packages [1962kB]
Get:2 http://ftp.au.debian.org unstable/main Release [82B]
Get:3 http://ftp.au.debian.org unstable/non-free Packages [50.0kB]
Get:4 http://ftp.au.debian.org unstable/non-free Release [86B]
Get:5 http://ftp.au.debian.org unstable/contrib Packages [47.8kB]
Get:6 http://ftp.au.debian.org unstable/contrib Release [85B]
Fetched 2060kB in 11m39s (2944B/s)
apt-get(181): unaligned access to 0x403ce08c at ip=0x4005e4f7
apt-get(181): unaligned access to 0xef20c024 at ip=0x4005e4fb
isr verification failed (isr: 00000000, sr7: 000000ac 
Unaligned handler failed, ret = 1

k580:~# /etc/init.d/samba start                                
Starting Samba daemons: nmbd smbdsmbd(175): unaligned access to
0x4001a2b8 at if

Robert Stanford



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In looking at the failure of the gcc v3 pthread2 test, I see it dies
with a segv in chunk_free when next is larger than 0x80000000:

#0  chunk_free (ar_ptr=0x400ad16c, p=0x4010c744) at malloc.c:3179
3179      nextsz = chunksize(next);
(gdb) p next
$2 = (struct malloc_chunk *) 0x802191cc

I thought there was a flat memory model.  If so, shouldn't it be possible
for the data section to expand past 0x80000000?

The test will pass if I cut max_loop_count to 30000.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Fri, Sep 20, 2002 at 11:38:37PM -0400, John David Anglin wrote:
> I thought there was a flat memory model.  If so, shouldn't it be possible
> for the data section to expand past 0x80000000?

There is a flat memory model... libs are mapped at 0x4000'0000 so that's
not it.  worth looking at /proc/$pid/maps for that process, maybe?

-- 
Revolutions do not require corporate support.


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Istvan Gyenes wrote:
> Thanks I'll try that!
> 
> Another question: If 2.4.19 SMP not enough stable where can I find the
> latest stable smp kernel source?

I'd advise using the 2.4.19 images uploaded by Bdale to debian.org.
Mostly because it's "fall-out-of-bed" easy to get matching source in
case you need to change something or want to try something out.

If that doesn't work for you, for A500, one of the better ones is:
	ftp://ftp.parisc-linux.org/kernels/a500/2.4.18-pa54.tgz

Look in kernels/32 or kernel/64 for other revs using default configs.

I'm convinced SMP instability is because of timing (race conditions)
and/or D-cache problems. My gut feeling if the 4-way associative
cache isn't getting flushed properly in all locations it needs to be.
I'm hoping someone who has more clue about VM and virtually indexed
caches could dig into this.

hth,
grant


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Matthew Wilcox wrote:
> On Fri, Sep 20, 2002 at 11:38:37PM -0400, John David Anglin wrote:
> > I thought there was a flat memory model.  If so, shouldn't it be possible
> > for the data section to expand past 0x80000000?
> 
> There is a flat memory model... libs are mapped at 0x4000'0000 so that's
> not it.  worth looking at /proc/$pid/maps for that process, maybe?

is 0x80000000 the address or the size?
If it's the size then you get up into 0xc0000000 (which is ok).
Getting up into 0xf0000000 - 0xffffffff address is not.

grant


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> is 0x80000000 the address or the size?

It's the address of the next contiguous chunk.  This is roughly the sum
of the address plus the size of the chunk to be freed.  The segv occurs
loading the size of the next chunk using the address.

I haven't been successful debugging the code directly.  I can get the
code to seg fault by setting SIG37 to nostop noprint, but the debugger
seems to think the fault occurs following the INLINE_SYSCALL in
__sigsuspend.  However, the address points to an ldi instruction
which can't seg fault, so I don't know what's up.  The data that
I posted were from a core dump.

> If it's the size then you get up into 0xc0000000 (which is ok).
> Getting up into 0xf0000000 - 0xffffffff address is not.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On , you wrote:
It would seem that this user is CONSTANTLY spreading virii to this
mailing list.=20

Could someone remove this user from this listing please!

>Norton AntiVirus deleted the following email message because it was =
infected with a virus:
>
>From: ankurahmed <ankurahmed@hotmail.com>
>To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] Fw: fad




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Xref: news.gmane.org gmane.linux.ports.parisc:16224

Hello PA-RISC experts !

I already have a problem with `emacs'.

When I start `emacs' on a HP machine (independen, if
it is a Apollo 9000/720/50 or the E55 server (9000/856)),
I get the error message:

Error: Unresolved inheritance operation

If I start `emacs' with an empty DISPLAY variable
(use without X mode), emacs work !!!
What is the problem here ?

Emacs version output:

GNU Emacs 20.7.2
Copyright (C) 1999 Free Software Foundation, Inc.
GNU Emacs comes with ABSOLUTELY NO WARRANTY.
You may redistribute copies of Emacs
under the terms of the GNU General Public License.
For more information about these matters, see the file named COPYING.


I use the debian SID distribution for months now, which
is always updated. I think the current setup is only
some weeks old !!

GLIBC is libc-2.2.5 

Whats the reason here.

Bye
Christoph P.


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: [parisc-linux] Mouse stops working when exiting KDE
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Xref: news.gmane.org gmane.linux.ports.parisc:16225

Hey all,

Currently when my system boots up the X11 login window starts up
automatically and I can log in and use it normally, but when I log out
the mouse quits working.  The X11 login window appears again, but the
mouse won't move anymore.  I'm just using a standard PS/2 HP 3 button
mouse - nothing fancy on my C180.  Also, why is it that Konqueror won't
do https sites?  And if it will what could possibly be the problem with
that?  Thanks.

### BEGIN DEBCONF SECTION
# XF86Config-4 (XFree86 server configuration file) generated by
dexconf, the
# Debian X Configuration tool, using values from the debconf database.
#
# Edit this file with caution, and see the XF86Config-4 manual page.
# (Type "man XF86Config-4" at the shell prompt.)
#
# If you want your changes to this file preserved by dexconf, only make
changes
# before the "### BEGIN DEBCONF SECTION" line above, and/or after the
# "### END DEBCONF SECTION" line below.
#
# To change things within the debconf section, run the command:
#   dpkg-reconfigure xserver-xfree86
# as root.  Also see "How do I add custom sections to a
dexconf-generated
# XF86Config or XF86Config-4 file?" in
/usr/share/doc/xfree86-common/FAQ.gz.

Section "Files"
        FontPath        "unix/:7100"                    # local font
server
        # if the local font server has problems, we can fall back on
these
        FontPath        "/usr/lib/X11/fonts/misc"
        FontPath        "/usr/lib/X11/fonts/cyrillic"
        FontPath        "/usr/lib/X11/fonts/100dpi/:unscaled"
        FontPath        "/usr/lib/X11/fonts/75dpi/:unscaled"
        FontPath        "/usr/lib/X11/fonts/Type1"
        FontPath        "/usr/lib/X11/fonts/Speedo"
        FontPath        "/usr/lib/X11/fonts/100dpi"
        FontPath        "/usr/lib/X11/fonts/75dpi"
EndSection

Section "Module"
        Load    "GLcore"
        Load    "bitmap"
        Load    "dbe"
        Load    "ddc"
        Load    "dri"
        Load    "extmod"
        Load    "freetype"
        Load    "glx"
        Load    "int10"
        Load    "pex5"
        Load    "record"
        Load    "speedo"
        Load    "type1"
        Load    "vbe"
        Load    "xie"
EndSection

Section "InputDevice"
        Identifier      "Generic Keyboard"
        Driver          "keyboard"
        Option          "CoreKeyboard"
        Option          "XkbRules"      "xfree86"
        Option          "XkbModel"      "pc101"
        Option          "XkbLayout"     "us"
EndSection

Section "InputDevice"
        Identifier      "Configured Mouse"
        Driver          "mouse"
        Option          "CorePointer"
        Option          "Device"                "/dev/psaux"
        Option          "Protocol"              "PS/2"
        Option          "Emulate3Buttons"       "true"
        Option          "ZAxisMapping"          "4 5"
EndSection

Section "InputDevice"
        Identifier      "Generic Mouse"
        Driver          "mouse"
        Option          "SendCoreEvents"        "true"
        Option          "Device"                "/dev/input/mice"
        Option          "Protocol"              "ImPS/2"
        Option          "Emulate3Buttons"       "true"
        Option          "ZAxisMapping"          "4 5"
EndSection

Section "Device"
        Identifier      "Generic Video Card"
        Driver          "fbdev"
        Option          "UseFBDev"              "true"
EndSection

Section "Monitor"
        Identifier      "Generic Monitor"
        HorizSync       30-60
        VertRefresh     50-75
        Option          "DPMS"
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Device          "Generic Video Card"
        Monitor         "Generic Monitor"
        DefaultDepth    8
        SubSection "Display"
                Depth           1
                Modes           "1024x768" "1280x1024"
        EndSubSection
        SubSection "Display"
                Depth           4
                Modes           "1024x768" "1280x1024"
        EndSubSection
        SubSection "Display"
                Depth           8
                Modes           "1280x1024"
        EndSubSection
        SubSection "Display"
                Depth           15
                Modes           "1024x768"
        EndSubSection
        SubSection "Display"
                Depth           16
                Modes           "1024x768"
        EndSubSection
        SubSection "Display"
                Depth           24
                Modes           "1024x768"
        EndSubSection
EndSection

Section "ServerLayout"
        Identifier      "Default Layout"
        Screen          "Default Screen"
        InputDevice     "Generic Keyboard"
        InputDevice     "Configured Mouse"
        InputDevice     "Generic Mouse"
EndSection

Section "DRI"
        Mode    0666
EndSection

### END DEBCONF SECTION


derek


__________________________________________________
Do you Yahoo!?
New DSL Internet Access from SBC & Yahoo!
http://sbc.yahoo.com


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"John David Anglin" wrote:
> It's the address of the next contiguous chunk.  This is roughly the sum
> of the address plus the size of the chunk to be freed.  The segv occurs
> loading the size of the next chunk using the address.

I'll assume this is happening on the A500 (PA2.0) and wonder if it's
a signed/unsigned bug. Look closely at how PA2.0 extends register
values and make sure code is treating addresses and sizes as unsigned.


> I haven't been successful debugging the code directly.  I can get the
> code to seg fault by setting SIG37 to nostop noprint, but the debugger
> seems to think the fault occurs following the INLINE_SYSCALL in
> __sigsuspend.  However, the address points to an ldi instruction
> which can't seg fault, so I don't know what's up.

Not all instructions trap precisely. FP ops definitely do not and
I thought a few others didn't either.

I'm wondering what happens when unaligned access should segfault.
Does the unaligned code handle check for that?
I'll take a quick look at that code path.


thanks,
grant


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Derek Engelhaupt wrote:
> Currently when my system boots up the X11 login window starts up
> automatically and I can log in and use it normally, but when I log out
> the mouse quits working.  The X11 login window appears again, but the
> mouse won't move anymore.  I'm just using a standard PS/2 HP 3 button
> mouse - nothing fancy on my C180.

Known problem. I don't know if this bug is parisc specific.

> Also, why is it that Konqueror won't do https sites? 
> And if it will what could possibly be the problem with that?  Thanks.

apt-get install kdebase-crypto

(IIRC, it was Ryan Murray of debian.org who told me that)

grant


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> Would be nice to have a proc interface for this.
> I would like to do consecutive testing with it 
> enabled and disabled.

ftp://ftp.parisc-linux.org/patches/unaligned-procfs.diff

legolas:/home/randolph# cat /proc/sys/kernel/unaligned 
Unaligned trap handler is enabled
legolas:/home/randolph# ./t; echo $?
0
legolas:/home/randolph# echo 0 >> /proc/sys/kernel/unaligned 
legolas:/home/randolph# cat /proc/sys/kernel/unaligned 
Unaligned trap handler is not enabled
legolas:/home/randolph# ./t; echo $?
Bus error
138
legolas:/home/randolph# echo 1 >> /proc/sys/kernel/unaligned 
legolas:/home/randolph# cat /proc/sys/kernel/unaligned 
Unaligned trap handler is enabled
legolas:/home/randolph# ./t; echo $?
0

if someone can review this real quick before i commit it to cvs, i'd
appreciate it. in particular, the point where it decides that the
unaligned trap is not enabled and forces the SIGBUS is not exactly at
the beginning of the trap handler -- it still prints the unaligned
message.... 

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Derek Engelhaupt wrote:
> Hey all,
> 
> Currently when my system boots up the X11 login window starts up
> automatically and I can log in and use it normally, but when I log out
> the mouse quits working.  The X11 login window appears again, but the
> mouse won't move anymore.  I'm just using a standard PS/2 HP 3 button
> mouse - nothing fancy on my C180.  Also, why is it that Konqueror won't
> do https sites?  And if it will what could possibly be the problem with
> that?  Thanks.

I assume you are running the gpm mouse daemon as well. If you tell X to 
use the gpm mouse (/dev/gpmdata), you should be okay. Personally, I just 
turn off the gpm daemon, because I don't need a mouse in console mode.

(It's not a parisc-only bug: I see this on virtually every Debian platform)

-- 
____               .:.                 ____
Bryan W. Headley - bwheadley@earthlink.net



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Randolph Chung wrote:
> legolas:/home/randolph# cat /proc/sys/kernel/unaligned 
> Unaligned trap handler is enabled
> legolas:/home/randolph# ./t; echo $?
> 0
> legolas:/home/randolph# echo 0 >> /proc/sys/kernel/unaligned 

Cool!
After reviewing the diff (on ftp.p-l.o/patches), only two nits
that have nothing to do with the code:

o cat output should relate to what I have to "echo" into the /proc file.
  ie only display '0' or '1' when catting.
  Or is "blah is enabled" by convention?

o SYSCTL_FILENAME should be "sys/kernel/unaligned_trap"
  and then I think 0 or 1 should be clear enough to anyone
  daring to mess with it.


> if someone can review this real quick before i commit it to cvs,

If you don't like my suggestions, I'm ok with committing
what you've already got.

> i'd
> appreciate it. in particular, the point where it decides that the
> unaligned trap is not enabled and forces the SIGBUS is not exactly at
> the beginning of the trap handler -- it still prints the unaligned
> message.... 

hmmm...if running under a debugger, one gets that info anyway.
But that's not always easy to do. I think it's ok since we don't
like to see unligned traps happen anyway.

Maybe a "unaligned_trap_msg" tunable?
/me runs...

thanks
grant


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> I'll assume this is happening on the A500 (PA2.0) and wonder if it's
> a signed/unsigned bug. Look closely at how PA2.0 extends register
> values and make sure code is treating addresses and sizes as unsigned.

This is the code that adds the chunk pointer plus size of chunk and
then tries to load the size of the next check:

0x402611d4 <chunk_free+32>:     add,l r25,ret1,r31
0x402611d8 <chunk_free+36>:     ldw 4(sr0,r31),r20

The add is a 64-bit add on a PA2.0 machine, so the result won't be
signed extended.  My understanding is that the upper 32-bits are
truncated when the PSW W bit is zero.  So, it isn't obvious to
me how this can be a signed/unsigned bug unless it is in the
kernel.

> > I haven't been successful debugging the code directly.  I can get the
> > code to seg fault by setting SIG37 to nostop noprint, but the debugger
> > seems to think the fault occurs following the INLINE_SYSCALL in
> > __sigsuspend.  However, the address points to an ldi instruction
> > which can't seg fault, so I don't know what's up.
> 
> Not all instructions trap precisely. FP ops definitely do not and
> I thought a few others didn't either.
> 
> I'm wondering what happens when unaligned access should segfault.
> Does the unaligned code handle check for that?
> I'll take a quick look at that code path.

There is definitely something strange with this program.  It doesn't
seg fault 100% of the time.  This suggests either a timing/lock problem
or something that isn't being properly initialized.  I don't know
how to debug it under gdb because it seems to change the way traps
are handled.  When I set a break, it appears that the code under test
catches the trap instead of gdb.  The system also dumps core.

I've tried setting breaks in chunk_free and __pthread_mutex_lock
where the unaligned faults occur with a condition matching the
unaligned pointer value which i see in /var/log/debug.  However,
I get the following:

Program received signal SIGTRAP, Trace/breakpoint trap.
0x4021e114 in __sigsuspend (set=0x25)
    at ../sysdeps/unix/sysv/linux/sigsuspend.c:45
45        return INLINE_SYSCALL (rt_sigsuspend, 2, CHECK_SIGSET (set), _NSIG / 8);
(gdb) info proc
process 20194
cmdline = '/home/dave/pthread2.x0g'
warning: unable to read link '/proc/20194/cwd'
warning: unable to read link '/proc/20194/exe'

dave     20193 20041  0 21:41 pts/2    00:00:02 gdb pthread2.x0g
dave     20194 20193  0 21:43 pts/2    00:00:00 /home/dave/pthread2.x0g
dave     20199 20194  0 21:46 pts/2    00:00:00 [pthread2.x0g <defunct>]

I tried setting follow-fork-mode to child but it doesn't seem to follow
the child.

I don't think fp exceptions are involved.

I can see in debug that two traps occur associated with each run.  They
are both type 15 (Data TLB Miss Fault) and they seem to both occur at
the same location.

The program pthread2.x0g is in my home directory on gsyprf11.  If you
want to try it, it probably best to set

  LD_LIBRARY_PATH=/home/dave/opt/gnu/lib

It may take several tries to get it to seg fault.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Joel Soete <joel.soete@freebel.net>
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Subject: Re: [parisc-linux] Mouse stops working when exiting KDE
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Xref: news.gmane.org gmane.linux.ports.parisc:16233


Bryan W. Headley wrote:
> Derek Engelhaupt wrote:
> 
>> Hey all,
>>
>> Currently when my system boots up the X11 login window starts up
>> automatically and I can log in and use it normally, but when I log out
>> the mouse quits working.  The X11 login window appears again, but the
>> mouse won't move anymore.  I'm just using a standard PS/2 HP 3 button
>> mouse - nothing fancy on my C180.  Also, why is it that Konqueror won't
>> do https sites?  And if it will what could possibly be the problem with
>> that?  Thanks.
> 
> 
> I assume you are running the gpm mouse daemon as well. If you tell X to 
> use the gpm mouse (/dev/gpmdata), you should be okay.

Hmm, long time ago I test this (because that was like this I configure 
my i386 boxe) but it did not work. Does it work now on parisc?

> Personally, I just 
> turn off the gpm daemon, because I don't need a mouse in console mode.
> 
> (It's not a parisc-only bug: I see this on virtually every Debian platform)
> 
with kde ?

Because with the same software config (gdm + xfce + xfree86-4.1) the 
same problem occurs on my parisc (b180) and not on my i386 (on which I 
also use /dev/psaux as mouse device)?

(sorry (I would be of better help) I never have time to investigate in 
more details this problem. And I do not remember exactly if it was 
always there or if it appears with a new release of xfree86 or with a 
new kernel release? Is some one can refresh my memory?)

Joel



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From: "Tobias Giesen" <tobias_subscriber@tgtools.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Do you know the three HGH products?
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Hi all,

funny spam that was, wasn't it ...
especially this part:

> This message is not intended for 
> residents in the states of CA, NC, 
> NV, RI, TN, VA & WA.

I wonder why? Is their product illegal
in those states?

BTW is there anything true about the 
HGH or is it all lies ...

Cheers,
Tobias



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Oops so old: 
http://lists.parisc-linux.org/pipermail/parisc-linux/2001-October/014145.html 


Well IIRC, at this time I encounter a problem with Xfree86 config (a 
change in stifb (kernel 2.4.9-pa57) required that the screen mode match 
exactly the hw definition) but it was also the first time that I test 
xdm (previously I only used startx).

Joel

Joel Soete wrote:
> 
> 
> Bryan W. Headley wrote:
> 
>> Derek Engelhaupt wrote:
>>
>>> Hey all,
>>>
>>> Currently when my system boots up the X11 login window starts up
>>> automatically and I can log in and use it normally, but when I log out
>>> the mouse quits working.  The X11 login window appears again, but the
>>> mouse won't move anymore.  I'm just using a standard PS/2 HP 3 button
>>> mouse - nothing fancy on my C180.  Also, why is it that Konqueror won't
>>> do https sites?  And if it will what could possibly be the problem with
>>> that?  Thanks.
>>
>>
>>
>> I assume you are running the gpm mouse daemon as well. If you tell X 
>> to use the gpm mouse (/dev/gpmdata), you should be okay.
> 
> 
> Hmm, long time ago I test this (because that was like this I configure 
> my i386 boxe) but it did not work. Does it work now on parisc?
> 
>> Personally, I just turn off the gpm daemon, because I don't need a 
>> mouse in console mode.
>>
>> (It's not a parisc-only bug: I see this on virtually every Debian 
>> platform)
>>
> with kde ?
> 
> Because with the same software config (gdm + xfce + xfree86-4.1) the 
> same problem occurs on my parisc (b180) and not on my i386 (on which I 
> also use /dev/psaux as mouse device)?
> 
> (sorry (I would be of better help) I never have time to investigate in 
> more details this problem. And I do not remember exactly if it was 
> always there or if it appears with a new release of xfree86 or with a 
> new kernel release? Is some one can refresh my memory?)
> 
> Joel
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




From - Thu Nov 08 21:24:44 2018
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From: "Yves Bodack" <bodack@stud.fh-heilbronn.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] RTC and FB on 735/125
Date: Sun, 22 Sep 2002 20:30:34 +0200
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This is a multi-part message in MIME format.

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	charset="Windows-1252"
Content-Transfer-Encoding: 7bit

Hi,

i have a 'new' 735/125 workstation, which I run Debian 3.0 on.
hp735# uname -a
Linux hp735 2.4.19-32 #1 Tue Aug 20 03:25:39 MDT 2002 parisc unknown unknown
GNU/Linux

1st problem I have is the Real Time Clock. On boot I get the following
messages:

System Time was Thu Jan 1 00:00:10 UTC 1970
Setting the System Clock using the Hardware Clock as reference...
RTC_RD_TIME: Bad address
ioctl() to /dev/rtc read the time failed.
System Clock set. System local time is now Thu Jan 1 00:00:13 UTC 1970.

so i'm damned back to the 70' every boot time...

2nd problem is I can't start X. I'm using Helge Deller's XFConfig-4 from
ftp.p-l.org and just changed Depth from 8 to 24 bpp.

(EE) FBDev(0): FBIOPUT_VSCREENINFO: Invalid argument

Fatal server error:
AddScreen/ScreenInit failed for driver 0

Is the Coral SGC Graphics supported?
I've attached dmesg and XFree86.0.log .

Thanks for your help
Yves...

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Content-Type: application/octet-stream;
	name="dmesg"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="dmesg"

Linux version 2.4.19-32 (root@j5k) (gcc version 3.0.4) #1 Tue Aug 20 =
03:25:39 MDT 2002=0A=
FP[0] enabled: Rev 1 Model 9=0A=
The 32-bit Kernel has started...=0A=
Determining PDC firmware type: Snake.=0A=
model 00002060 00000481 00000000 00000000 773bea94 ffffffff 00000004 =
0000000a 0000000a=0A=
vers  00000015=0A=
model 9000/735=0A=
Total Memory: 256 Mb=0A=
pagetable_init=0A=
On node 0 totalpages: 65536=0A=
zone(0): 65536 pages.=0A=
zone(1): 0 pages.=0A=
zone(2): 0 pages.=0A=
Kernel command line: root=3D/dev/sda3 HOME=3D/ console=3Dtty0 sti=3D1 =
sti_font=3DVGA8x16 TERM=3Dlinux palo_kernel=3D3/boot/vmlinux=0A=
Error reading tod clock=0A=
Console: colour dummy device 160x64=0A=
Calibrating delay loop... 124.51 BogoMIPS=0A=
Memory: 255920k available=0A=
Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)=0A=
Inode cache hash table entries: 16384 (order: 5, 131072 bytes)=0A=
Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)=0A=
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)=0A=
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)=0A=
Searching for devices...=0A=
Found devices:=0A=
1. Coral SGC Graphics (10) at 0xf8000000 [1], versions 0x4, 0x0, 0x77=0A=
2. Outfield Core BA (11) at 0xf082f000 [2], versions 0x9, 0x0, 0x70=0A=
3. Outfield Core SCSI (10) at 0xf0825000 [2/0/1], versions 0x9, 0x0, 0x71=0A=
4. Outfield Core LAN (802.3) (10) at 0xf0826000 [2/0/2], versions 0x9, =
0x0, 0x72=0A=
5. Outfield Core HIL (10) at 0xf0821000 [2/0/3], versions 0x9, 0x0, 0x73=0A=
6. Outfield Core RS-232 (10) at 0xf0823000 [2/0/4], versions 0x9, 0x0, =
0x75=0A=
7. Outfield Core RS-232 (10) at 0xf0822000 [2/0/5], versions 0x9, 0x0, =
0x75=0A=
8. Outfield Core Centronics (10) at 0xf0824000 [2/0/6], versions 0x9, =
0x0, 0x74=0A=
9. Outfield FW SCSI (10) at 0xf0830000 [2/0/7], versions 0x9, 0x0, 0x7c=0A=
10. Outfield Audio (10) at 0xf1000000 [2/0/8], versions 0x9, 0x0, 0x7f=0A=
11. Snake Cheetah (735/130) (0) at 0xfffbe000 [8], versions 0x206, 0x0, =
0x4=0A=
12. Memory (1) at 0xfffbf000 [9], versions 0x37, 0x0, 0x9=0A=
CPU(s): 1 x PA7100 (PCX-T) at 125.000000 MHz=0A=
Cutoff version 4 at 0xf082f000 found.=0A=
LED (ASP-style) display at f0800020 registered=0A=
POSIX conformance testing by UNIFIX=0A=
Linux NET4.0 for Linux 2.4=0A=
Based upon Swansea University Computer Society NET3.039=0A=
Initializing RT netlink socket=0A=
Soft power switch support not available.=0A=
Starting kswapd=0A=
Journalled Block Device driver loaded=0A=
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).=0A=
parport_init_chip: enhanced parport-modes not supported.=0A=
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]=0A=
STI GSC/PCI graphics driver version 0.9=0A=
STI byte mode ROM at f8000000, hpa at f8000000=0A=
STI id 26d148ee-40a00499, conforms to spec rev. 8.02=0A=
STI device: HPA1439A=0A=
Console: switching to colour frame buffer device 160x64=0A=
fb0: stifb 1280x1024-32 frame buffer device, id: 26d148ee, mmio: =
0xf8100000=0A=
pty: 256 Unix98 ptys configured=0A=
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ =
SERIAL_PCI enabled=0A=
ttyS00 at iomem 0xf0823800 (irq =3D 90) is a 16550A=0A=
ttyS01 at iomem 0xf0822800 (irq =3D 89) is a 16550A=0A=
lp0: using parport0 (interrupt-driven).=0A=
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)=0A=
Uniform Multi-Platform E-IDE driver Revision: 6.31=0A=
ide: Assuming 50MHz system bus speed for PIO modes; override with =
idebus=3Dxx=0A=
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize=0A=
loop: loaded (max 8 devices)=0A=
Found i82596 at 0xf0826000, IRQ 87=0A=
82596.c: MAC of HP700 LAN read from EEPROM=0A=
eth0: Couldn't get consistent shared memory=0A=
eth0: 82596 at 0xf0826000, 08 00 09 49 65 60 IRQ 87.=0A=
82596.c $Revision: 1.29 $=0A=
SCSI subsystem driver Revision: 1.00=0A=
53c700: consistent memory allocation failed=0A=
53c700: Version 2.7 By James.Bottomley@HansenPartnership.com=0A=
scsi0: 53c700 rev 0 =0A=
scsi0 : LASI SCSI 53c700=0A=
  Vendor: MICROP    Model: 4110-09TBCU0322J  Rev: HT01=0A=
  Type:   Direct-Access                      ANSI SCSI revision: 02=0A=
Attached scsi disk sda at scsi0, channel 0, id 3, lun 0=0A=
SCSI device sda: 2053880 512-byte hdwr sectors (1052 MB)=0A=
Partition check:=0A=
 sda: sda1 sda2 sda3=0A=
Lasi Harmony Audio driver V0.9a, h/w id 20, rev. 0 at 0xf1000000, IRQ 82=0A=
mice: PS/2 mouse device common for all mice=0A=
HP SDC: HP SDC at 0xf0821000, IRQ 94 (NMI IRQ 93)=0A=
HP SDC: New style SDC=0A=
HP SDC: Revision: 1820-4784=0A=
HP SDC: TI SN76494 beeper present=0A=
HP SDC: OKI MSM-58321 BBRTC present=0A=
HP SDC: Spunking the self test register to force PUP on next firmware =
reset.=0A=
HP SDC MLC: Registering the System Domain Controller's HIL MLC.=0A=
md: linear personality registered as nr 1=0A=
md: raid0 personality registered as nr 2=0A=
md: raid1 personality registered as nr 3=0A=
md: raid5 personality registered as nr 4=0A=
raid5: measuring checksumming speed=0A=
   8regs     :    92.400 MB/sec=0A=
   8regs_prefetch:    92.400 MB/sec=0A=
   32regs    :    90.800 MB/sec=0A=
   32regs_prefetch:    90.800 MB/sec=0A=
raid5: using function: 8regs_prefetch (92.400 MB/sec)=0A=
md: md driver 0.90.0 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27=0A=
md: Autodetecting RAID arrays.=0A=
md: autorun ...=0A=
md: ... autorun DONE.=0A=
NET4: Linux TCP/IP 1.0 for NET4.0=0A=
IP Protocols: ICMP, UDP, TCP, IGMP=0A=
IP: routing cache hash table of 2048 buckets, 16Kbytes=0A=
TCP: Hash tables configured (established 16384 bind 32768)=0A=
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.=0A=
VFS: Mounted root (ext2 filesystem) readonly.=0A=
Freeing unused kernel memory: 264k freed=0A=
kernel BUG at slab.c:1130!=0A=
HIL KEYB: HIL keyboard found (did =3D 0xcf, lang =3D german)=0A=
input0: HIL keyboard on hil0=0A=
HIL PTR: HIL pointer device found (did: 0x68, axis: relative)=0A=
HIL PTR: HIL pointer has 3 buttons and 1 sets of 2 axes=0A=
input1: HIL mouse on hil0=0A=
Adding Swap: 249848k swap-space (priority -1)=0A=
eth0: link ok.=0A=

------=_NextPart_000_03A8_01C26276.E71F5B10
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	name="XFree86.0.log"
Content-Transfer-Encoding: quoted-printable
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=0A=
This is a pre-release version of XFree86, and is not supported in any=0A=
way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted=0A=
to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,=0A=
please check the latest version in the XFree86 CVS repository=0A=
(http://www.XFree86.Org/cvs)=0A=
=0A=
XFree86 Version 4.1.0.1 / X Window System=0A=
(protocol Version 11, revision 0, vendor release 6510)=0A=
Release Date: 21 December 2001=0A=
	If the server is older than 6-12 months, or if your card is=0A=
	newer than the above date, look for a newer version before=0A=
	reporting problems.  (See http://www.XFree86.Org/FAQ)=0A=
Build Operating System: Linux 2.4.16-64 parisc64 [ELF] =0A=
(=3D=3D) Log file: "/var/log/XFree86.0.log", Time: Thu Jan  1 01:44:53 =
1970=0A=
(=3D=3D) Using config file: "/etc/X11/XF86Config-4"=0A=
Markers: (--) probed, (**) from config file, (=3D=3D) default setting,=0A=
         (++) from command line, (!!) notice, (II) informational,=0A=
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.=0A=
(=3D=3D) ServerLayout "Default Layout"=0A=
(**) |-->Screen "Default Screen" (0)=0A=
(**) |   |-->Monitor "Generic Monitor"=0A=
(**) |   |-->Device "Generic Video Card"=0A=
(**) |-->Input Device "Keyboard"=0A=
(=3D=3D) Keyboard: CustomKeycode disabled=0A=
(**) |-->Input Device "Mouse"=0A=
(WW) The directory "/usr/lib/X11/fonts/cyrillic" does not exist.=0A=
	Entry deleted from font path.=0A=
(WW) The directory "/usr/lib/X11/fonts/100dpi/" does not exist.=0A=
	Entry deleted from font path.=0A=
(WW) The directory "/usr/lib/X11/fonts/75dpi/" does not exist.=0A=
	Entry deleted from font path.=0A=
(WW) The directory "/usr/lib/X11/fonts/Type1" does not exist.=0A=
	Entry deleted from font path.=0A=
(WW) The directory "/usr/lib/X11/fonts/Speedo" does not exist.=0A=
	Entry deleted from font path.=0A=
(WW) The directory "/usr/lib/X11/fonts/100dpi" does not exist.=0A=
	Entry deleted from font path.=0A=
(WW) The directory "/usr/lib/X11/fonts/75dpi" does not exist.=0A=
	Entry deleted from font path.=0A=
(**) FontPath set to "unix/:7100,/usr/lib/X11/fonts/misc"=0A=
(=3D=3D) RgbPath set to "/usr/X11R6/lib/X11/rgb"=0A=
(--) using VT number 7=0A=
=0A=
(WW) Cannot open APM=0A=
(EE) No OS PCI support available=0A=
(II) Addressable bus resource ranges are=0A=
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]=0A=
	[1] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]=0A=
(II) OS-reported resource ranges:=0A=
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]=0A=
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]=0A=
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]=0A=
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]=0A=
(II) OS-reported resource ranges after removing overlaps with PCI:=0A=
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]=0A=
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]=0A=
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]=0A=
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]=0A=
(II) All system resource ranges:=0A=
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]=0A=
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]=0A=
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]=0A=
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]=0A=
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,=0A=
	mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400=0A=
(II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,=0A=
	pm2, pm, 300sx, 500tx, mx, delta=0A=
	S3VIdentify=0A=
(II) S3VIRGE: driver (version 1.6.13) for S3 ViRGE chipsets: virge, =
86C325,=0A=
	virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,=0A=
	86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,=0A=
	trio 3d/2x, 86C362, 86C368=0A=
(II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,=0A=
	SIS300, SIS630, SIS540=0A=
(II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,=0A=
	Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,=0A=
	Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,=0A=
	TwisterK=0A=
(II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, =
cyber9388,=0A=
	cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,=0A=
	tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,=0A=
	providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,=0A=
	cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,=0A=
	cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm=0A=
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,=0A=
	ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,=0A=
	ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300=0A=
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,=0A=
	3dfx Voodoo3, 3dfx Voodoo5=0A=
(II) FBDev: driver for framebuffer: fbdev, afb=0A=
(II) ATI: ATI driver (version 6.3.6) for chipsets: ati=0A=
(II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),=0A=
	ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),=0A=
	ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),=0A=
	ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),=0A=
	ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),=0A=
	ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),=0A=
	ATI Rage 128 Mobility ML (AGP)=0A=
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),=0A=
	ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),=0A=
	ATI Radeon VE (AGP)=0A=
(II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,=0A=
	imstt3d=0A=
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic=0A=
(II) v4l driver for Video4Linux=0A=
	S3VProbe begin=0A=
(II) FBDev(0): using default device=0A=
(II) Running in FRAMEBUFFER Mode=0A=
(=3D=3D) FBDev(0): Depth 24, (=3D=3D) framebuffer bpp 24=0A=
(=3D=3D) FBDev(0): RGB weight 888=0A=
(=3D=3D) FBDev(0): Default visual is TrueColor=0A=
(=3D=3D) FBDev(0): Using gamma correction (1.0, 1.0, 1.0)=0A=
(II) FBDev(0): Hardware:  (vidmem: 16384k)=0A=
(II) FBDev(0): Checking Modes against framebuffer device...=0A=
(II) FBDev(0): 	mode "1280x1024" ok=0A=
(II) FBDev(0): Checking Modes against monitor...=0A=
(--) FBDev(0): Virtual size is 1280x1024 (pitch 1280)=0A=
(**) FBDev(0): Default mode "1280x1024": 108.0 MHz (scaled from 0.0 =
MHz), 64.0 kHz, 60.0 Hz=0A=
(II) FBDev(0): Modeline "1280x1024"  108.00  1280 1328 1440 1688  1024 =
1025 1028 1066 +hsync +vsync=0A=
(++) FBDev(0): DPI set to (100, 100)=0A=
(**) FBDev(0): Using "Shadow Framebuffer"=0A=
(--) Depth 24 pixmap format is 24 bpp=0A=
(EE) FBDev(0): FBIOPUT_VSCREENINFO: Invalid argument=0A=
=0A=
Fatal server error:=0A=
AddScreen/ScreenInit failed for driver 0=0A=
=0A=
=0A=
When reporting a problem related to a server crash, please send=0A=
the full server output, not just the last messages.=0A=
This can be found in the log file "/var/log/XFree86.0.log".=0A=
Please report problems to submit@bugs.debian.org.=0A=
=0A=

------=_NextPart_000_03A8_01C26276.E71F5B10--



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On Sun, 22 Sep 2002 20:30:34 +0200
"Yves Bodack" <bodack@stud.fh-heilbronn.de> wrote:

> Hi,
> 
> i have a 'new' 735/125 workstation, which I run Debian 3.0 on.
> hp735# uname -a
> Linux hp735 2.4.19-32 #1 Tue Aug 20 03:25:39 MDT 2002 parisc unknown unknown
> GNU/Linux
> > 
> 2nd problem is I can't start X. I'm using Helge Deller's XFConfig-4 from
> ftp.p-l.org and just changed Depth from 8 to 24 bpp.
I didn't try X on 735, but I bet it doesn't support 24bpp. ;)


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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Hi Yves,

On Sunday 22 September 2002 20:30, Yves Bodack wrote:
> 2nd problem is I can't start X. I'm using Helge Deller's XFConfig-4 from
> ftp.p-l.org and just changed Depth from 8 to 24 bpp.
>
> (EE) FBDev(0): FBIOPUT_VSCREENINFO: Invalid argument

and your dmesg says:

STI GSC/PCI graphics driver version 0.9
STI byte mode ROM at f8000000, hpa at f8000000
STI id 26d148ee-40a00499, conforms to spec rev. 8.02
STI device: HPA1439A
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, id: 26d148ee, mmio: 0xf8100000

So you should use 8bpp, and might try 32bpp.

Greetings,
Helge


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----- Original Message -----
From: "Thibaut VARENE" <varenet@esiee.fr>
Subject: Re: [parisc-linux] RTC and FB on 735/125


> > i have a 'new' 735/125 workstation, which I run Debian 3.0 on.
> > hp735# uname -a
> > Linux hp735 2.4.19-32 #1 Tue Aug 20 03:25:39 MDT 2002 parisc unknown
unknown
> > GNU/Linux
> > >
> > 2nd problem is I can't start X. I'm using Helge Deller's XFConfig-4 from
> > ftp.p-l.org and just changed Depth from 8 to 24 bpp.
> I didn't try X on 735, but I bet it doesn't support 24bpp. ;)

I bet it does ;)

dmesg says:

Found devices:
1. Coral SGC Graphics (10) at 0xf8000000 [1], versions 0x4, 0x0, 0x77
[...]
fb0: stifb 1280x1024-32 frame buffer device, id: 26d148ee, mmio: 0xf8100000


XFree86.0.log with 24 bpp says:

(II) FBDev(0): using default device
(II) Running in FRAMEBUFFER Mode
(==) FBDev(0): Depth 24, (==) framebuffer bpp 24
(==) FBDev(0): RGB weight 888
(==) FBDev(0): Default visual is TrueColor
(==) FBDev(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDev(0): Hardware:  (vidmem: 16384k)
(II) FBDev(0): Checking Modes against framebuffer device...
(II) FBDev(0):  mode "1280x1024" ok
(II) FBDev(0): Checking Modes against monitor...
(--) FBDev(0): Virtual size is 1280x1024 (pitch 1280)
(**) FBDev(0): Default mode "1280x1024": 108.0 MHz (scaled from 0.0 MHz),
64.0 kHz, 60.0 Hz
(II) FBDev(0): Modeline "1280x1024"  108.00  1280 1328 1440 1688  1024 1025
1028 1066 +hsync +vsync
(++) FBDev(0): DPI set to (100, 100)
(**) FBDev(0): Using "Shadow Framebuffer"
(--) Depth 24 pixmap format is 24 bpp
(EE) FBDev(0): FBIOPUT_VSCREENINFO: Invalid argument
Fatal server error:
AddScreen/ScreenInit failed for driver 0


and with 8 bpp it says:

(EE) FBDev(0): No Display subsection in Screen section "Default Screen" for
depth/fbbpp 24/24
(EE) Screen(s) found, but none have a usable configuration.
Fatal server error:
no screens found


greetings,

yves...



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Hello everybody,

I've got an 715/80 here and have problems to get a console.

I've switched a Nullmodem Cable to my Laptop and configured
minicom as discribed in the Boot-HOWTO - no sign of life.

Then I attached my Monitor to the machine and noticed that I
got a signal to the (SVGA) Monitor but no message appeared -
nothing than a blank screen in 1024x768 resolution as my
Monitor told me on his little Display.

At this point I pressed serveral times the ESCAPE-Button or
the TAB-Key (as mentioned in the HOWTO) at boottime, but no
reaction.

What else can I do?

Greets,
    Christian

-- 
May the Source be with you...


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replying to myself ...

> and with 8 bpp it says:
>
> (EE) FBDev(0): No Display subsection in Screen section "Default Screen"
for
> depth/fbbpp 24/24
> (EE) Screen(s) found, but none have a usable configuration.
> Fatal server error:
> no screens found

same with 16 or 32 bpp :(

greetings,

yves...





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Xref: news.gmane.org gmane.linux.ports.parisc:16242

Joel Soete wrote:

>> I assume you are running the gpm mouse daemon as well. If you tell X 
>> to use the gpm mouse (/dev/gpmdata), you should be okay.
> 
> 
> Hmm, long time ago I test this (because that was like this I configure 
> my i386 boxe) but it did not work. Does it work now on parisc?

Last time I checked, it did. Debconf and I have a difference of opinion 
about it's overwriting XF86Config-4 after I hand-edit it. So and X 
upgrade arrives, and the config file gets overwritten. :-)

>>
> with kde ?

No, I've seen it with Gnome also, on: alpha, ppc, sparc, and i386.

> 
> Because with the same software config (gdm + xfce + xfree86-4.1) the 
> same problem occurs on my parisc (b180) and not on my i386 (on which I 
> also use /dev/psaux as mouse device)?
> 

But, IS gpm running? Both it and the X server are trying to grab events 
from /dev/psaux...

> (sorry (I would be of better help) I never have time to investigate in 
> more details this problem. And I do not remember exactly if it was 
> always there or if it appears with a new release of xfree86 or with a 
> new kernel release? Is some one can refresh my memory?)

Seen it on X 4.0, 4.1 and 4.2. So I'd say it's not kernel-related.

-- 
____               .:.                 ____
Bryan W. Headley - bwheadley@earthlink.net



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Subject: Re: [parisc-linux] RTC and FB on 735/125
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On Sunday 22 September 2002 01:30 pm, Yves Bodack wrote:
> Hi,
>
> i have a 'new' 735/125 workstation, which I run Debian 3.0 on.
> hp735# uname -a
> Linux hp735 2.4.19-32 #1 Tue Aug 20 03:25:39 MDT 2002 parisc unknown
> unknown GNU/Linux
>
> 1st problem I have is the Real Time Clock. On boot I get the following
> messages:
>
> System Time was Thu Jan 1 00:00:10 UTC 1970
> Setting the System Clock using the Hardware Clock as reference...
> RTC_RD_TIME: Bad address
> ioctl() to /dev/rtc read the time failed.
> System Clock set. System local time is now Thu Jan 1 00:00:13 UTC 1970.
>
Perhaps it is really a good address and a bad clock battery.
Mike


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Subject: Re: [parisc-linux] Problems with 715/80
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I would suggest that you disconnect any disks and power on the box.  
Make sure your null-modem cable is attached to serial port "a" and no  
keyboard is attached via the PS2/HIL adapter box. You will need to get  
to the PCD "BOOT_ADMIN>" prompt before you can get any further. If you  
can not get to this prompt, take note of the LED's being displayed. The  
service manual for the 715 should help to decode the LED's.

http://h20000.www2.hp.com/bizsupport/ 
CoreRedirect.jsp?targetPage=http%3A%2F%2Fh200002.www2.hp.com%2Fbc%2Fdocs 
%2Fsupport%2FSupportManual%2Flpv37699%2Flpv37699.pdf

Hope this helps.

-chuck


On Sunday, Sep 22, 2002, at 17:16 US/Eastern, Christian Weerts wrote:

> Hello everybody,
>
> I've got an 715/80 here and have problems to get a console.
>
> I've switched a Nullmodem Cable to my Laptop and configured
> minicom as discribed in the Boot-HOWTO - no sign of life.
>
> Then I attached my Monitor to the machine and noticed that I
> got a signal to the (SVGA) Monitor but no message appeared -
> nothing than a blank screen in 1024x768 resolution as my
> Monitor told me on his little Display.
>
> At this point I pressed serveral times the ESCAPE-Button or
> the TAB-Key (as mentioned in the HOWTO) at boottime, but no
> reaction.
>
> What else can I do?
>
> Greets,
>     Christian
>
> -- 
> May the Source be with you...
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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Subject: Re: [parisc-linux] Mouse stops working when exiting KDE
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>-- Original Message --
>Date: Sun, 22 Sep 2002 16:45:47 -0500
>From: "Bryan W. Headley" <bwheadley@earthlink.net>
>To: Joel Soete <joel.soete@freebel.net>
>CC: Derek Engelhaupt <derekengelhaupt@rocketmail.com>, 
> parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] Mouse stops working when exiting KDE
>
>
>Joel Soete wrote:
>
>>> I assume you are running the gpm mouse daemon as well. If you tell X

>>> to use the gpm mouse (/dev/gpmdata), you should be okay.
>> 
>> 
>> Hmm, long time ago I test this (because that was like this I configure
>
>> my i386 boxe) but it did not work. Does it work now on parisc?
>
>Last time I checked, it did. Debconf and I have a difference of opinion

>about it's overwriting XF86Config-4 after I hand-edit it. So and X 
>upgrade arrives, and the config file gets overwritten. :-)
>
>>>
>> with kde ?
>
>No, I've seen it with Gnome also, on: alpha, ppc, sparc, and i386.
>
>> 
>> Because with the same software config (gdm + xfce + xfree86-4.1) the 
>> same problem occurs on my parisc (b180) and not on my i386 (on which I
>
>> also use /dev/psaux as mouse device)?
>> 
>
>But, IS gpm running? 

Yes on both machine

>Both it and the X server are trying to grab events 
>from /dev/psaux...
>
>> (sorry (I would be of better help) I never have time to investigate in
>
>> more details this problem. And I do not remember exactly if it was 
>> always there or if it appears with a new release of xfree86 or with a

>> new kernel release? Is some one can refresh my memory?)
>
>Seen it on X 4.0, 4.1 and 4.2. So I'd say it's not kernel-related.
>
Ha Ok

Thanks for info, (I will try to fond time for additional test)
    Joel



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This is a multipart message in MIME format.
--=_alternative 003E97AAC1256C3D_=
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

Hi,=20
i'am new to parisc, but have managed to successfully set up=20
an hp715/100 with palinux-0.9.3.

I have downloaded the latest isoimage 2.4.19-pa19-20020922,
from http://pateam.esiee.fr/download.html
Burned to CD and succesfull booted from internal CDROM drive into the IPL.
The problem arises when trying to load the kernel.
I have tried with no success:
1. booting unmodified command line: 0/vmlinux
2. 0/vmlinux32
3. 0/vmlinux64
4. 0/dists/woody/main/disks-hppa/3.0.23-2002-09-22/32/linux.bin
5. 0/dists/woody/main/disks-hppa/3.0.23-2002-09-22/64/linux.bin

after b<enter>, the CD is accessed for about 20 seconds, and then
the almost same error message appears:

---------------------------------------------------------------------------=
---------------------------
Command line for kernel: 'ramdisk=5Fsize=3D8192 root=3D/dev/ram console=3Dt=
ty0=20
sti=3D10/1/3/0 st=5Ffont=3DVGA8x16 TERM=3Dlinux palo=5Fkernel=3D0/vmlinux32'
Selected kernel: /vmlinux32 from partition 0
Selected ramdisk: /ramdiski from partition 0
ELF32 executable
Entry 00100098 first 00100000 n 6
Segment 0 load 00100000 size 2196688 mediaptr 0x1000
Segment 1 load 0031a000 size 467792 mediaptr 0x21a000
Segment 2 load 00390000 size 255656 mediaptr 0x28d000
Segment 3 load 003d0000 size 8192 mediaptr 0x2cc000
Segment 4 load 003d8000 size 32768 mediaptr 0x2ce000
Segment 5 load 00402048 size 110832 mediaptr 0x2d6048

ERROR: Read from boot device failed (status =3D -3).
byteio=5Fread: seekread() returned -1 expected 2195456
ERROR: segment 0 read() failed
Fatal error loading kernel executableERROR: failed to load kernel
---------------------------------------------------------------------------=
---------------------------

In order to exclude CDROM media problems, I tried to burn on
a regular CD (first one was RW), but again with no success.

Reading the Boot-howto didn't help.
Any help very much appreciated !

Regards,
                    Joachim



Joachim Weller

Philips Medizin Systeme Boeblingen GmbH
Cardiac and Monitoring Systems (CMS) /New Product Engineering=20
Phone: {+49|0}-7031-463-1891
Fax:   {+49|0}-7031-463-2112
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F
Gesch=E4ftsf=FChrer: Dr. Werner Haas, David Russell, Wolfgang Strenzl=20
(Sprecher)
Sitz der Gesellschaft: B=F6blingen Registergericht B=F6blingen Reg.-Nr. HRB=
=20
5187=20
Hewlett-Packard Str. 2, D 71034 Boeblingen      -GERMANY-
--=_alternative 003E97AAC1256C3D_=
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<br><font size=3D2 face=3D"sans-serif">Hi, </font>
<br><font size=3D2 face=3D"sans-serif">i'am new to parisc, but have managed=
 to successfully set up </font>
<br><font size=3D2 face=3D"sans-serif">an hp715/100 with palinux-0.9.3.</fo=
nt>
<br>
<br><font size=3D2 face=3D"sans-serif">I have downloaded the latest isoimag=
e 2.4.19-pa19-20020922,</font>
<br><font size=3D2 face=3D"sans-serif">from http://pateam.esiee.fr/download=
.html</font>
<br><font size=3D2 face=3D"sans-serif">Burned to CD and succesfull booted f=
rom internal CDROM drive into the IPL.</font>
<br><font size=3D2 face=3D"sans-serif">The problem arises when trying to lo=
ad the kernel.</font>
<br><font size=3D2 face=3D"sans-serif">I have tried with no success:</font>
<br><font size=3D2 face=3D"sans-serif">1. booting unmodified command line: =
0/vmlinux</font>
<br><font size=3D2 face=3D"sans-serif">2. 0/vmlinux32</font>
<br><font size=3D2 face=3D"sans-serif">3. 0/vmlinux64</font>
<br><font size=3D2 face=3D"sans-serif">4. 0/dists/woody/main/disks-hppa/3.0=
.23-2002-09-22/32/linux.bin</font>
<br><font size=3D2 face=3D"sans-serif">5. 0/dists/woody/main/disks-hppa/3.0=
.23-2002-09-22/64/linux.bin</font>
<br>
<br><font size=3D2 face=3D"sans-serif">after b&lt;enter&gt;, the CD is acce=
ssed for about 20 seconds, and then</font>
<br><font size=3D2 face=3D"sans-serif">the almost same error message appear=
s:</font>
<br>
<br><font size=3D2 face=3D"sans-serif">------------------------------------=
------------------------------------------------------------------</font>
<br><font size=3D2 face=3D"sans-serif">Command line for kernel: 'ramdisk=5F=
size=3D8192 root=3D/dev/ram console=3Dtty0 sti=3D10/1/3/0 st=5Ffont=3DVGA8x=
16 TERM=3Dlinux palo=5Fkernel=3D0/vmlinux32'</font>
<br><font size=3D2 face=3D"sans-serif">Selected kernel: /vmlinux32 from par=
tition 0</font>
<br><font size=3D2 face=3D"sans-serif">Selected ramdisk: /ramdiski from par=
tition 0</font>
<br><font size=3D2 face=3D"sans-serif">ELF32 executable</font>
<br><font size=3D2 face=3D"sans-serif">Entry 00100098 first 00100000 n 6</f=
ont>
<br><font size=3D2 face=3D"sans-serif">Segment 0 load 00100000 size 2196688=
 mediaptr 0x1000</font>
<br><font size=3D2 face=3D"sans-serif">Segment 1 load 0031a000 size 467792 =
mediaptr 0x21a000</font>
<br><font size=3D2 face=3D"sans-serif">Segment 2 load 00390000 size 255656 =
mediaptr 0x28d000</font>
<br><font size=3D2 face=3D"sans-serif">Segment 3 load 003d0000 size 8192 me=
diaptr 0x2cc000</font>
<br><font size=3D2 face=3D"sans-serif">Segment 4 load 003d8000 size 32768 m=
ediaptr 0x2ce000</font>
<br><font size=3D2 face=3D"sans-serif">Segment 5 load 00402048 size 110832 =
mediaptr 0x2d6048</font>
<br>
<br><font size=3D2 face=3D"sans-serif">ERROR: Read from boot device failed =
(status =3D -3).</font>
<br><font size=3D2 face=3D"sans-serif">byteio=5Fread: seekread() returned -=
1 expected 2195456</font>
<br><font size=3D2 face=3D"sans-serif">ERROR: segment 0 read() failed</font>
<br><font size=3D2 face=3D"sans-serif">Fatal error loading kernel executabl=
eERROR: failed to load kernel<br>
---------------------------------------------------------------------------=
---------------------------</font>
<br>
<br><font size=3D2 face=3D"sans-serif">In order to exclude CDROM media prob=
lems, I tried to burn on</font>
<br><font size=3D2 face=3D"sans-serif">a regular CD (first one was RW), but=
 again with no success.</font>
<br>
<br><font size=3D2 face=3D"sans-serif">Reading the Boot-howto didn't help.<=
/font>
<br><font size=3D2 face=3D"sans-serif">Any help very much appreciated !</fo=
nt>
<br>
<br><font size=3D2 face=3D"sans-serif">Regards,</font>
<br><font size=3D2 face=3D"sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &=
nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Joachim</font>
<br>
<br>
<br><font size=3D2 face=3D"sans-serif"><br>
Joachim Weller<br>
<br>
Philips Medizin Systeme Boeblingen GmbH<br>
Cardiac and Monitoring Systems (CMS) /New Product Engineering <br>
Phone: {+49|0}-7031-463-1891<br>
Fax: &nbsp; {+49|0}-7031-463-2112<br>
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F<br>
Gesch=E4ftsf=FChrer: Dr. Werner Haas, David Russell, Wolfgang Strenzl (Spre=
cher)<br>
Sitz der Gesellschaft: B=F6blingen Registergericht B=F6blingen Reg.-Nr. HRB=
 5187 &nbsp;<br>
Hewlett-Packard Str. 2, D 71034 Boeblingen &nbsp; &nbsp; &nbsp;-GERMANY-</f=
ont>
--=_alternative 003E97AAC1256C3D_=--


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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problem to load kernel by PALO (B2600)
Date: Mon, 23 Sep 2002 14:01:38 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:16247

joachim.weller@philips.com wrote:
> 
> Hi,
> i'am new to parisc, but have managed to successfully set up
> an hp715/100 with palinux-0.9.3.
> 
> I have downloaded the latest isoimage 2.4.19-pa19-20020922,
> from http://pateam.esiee.fr/download.html
> 
> In order to exclude CDROM media problems, I tried to burn on
> a regular CD (first one was RW), but again with no success.
> 
> Reading the Boot-howto didn't help.
> Any help very much appreciated !
> 

Hi,

I've just burned this netinst on a RW and tried it on a L1000 (I don't 
have a 715 to test it on alas), and it booted perfectly well.

Therefore I don't think this is an ISO problem, but rather a CD-ROM pb.

Maybe your CD-ROM driver isn't supported... Or damaged.
Have you tried with another one ?

HTH,



Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: Re: [parisc-linux] Problem to load kernel by PALO (B2600)
Date: Mon, 23 Sep 2002 14:05:56 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:16248

Thibaut VARENE wrote:
> Maybe your CD-ROM driver isn't supported... Or damaged.

My bad replying to myself.
To make it clear: I meant CD-ROM drive, not 'driver'.
Sorry.


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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From: joachim.weller@philips.com
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Subject: Re: [parisc-linux] Problem to load kernel by PALO (B2600) (solved)
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This is a multipart message in MIME format.
--=_alternative 00446629C1256C3D_=
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Please ignore my posted problem. I apologize not having
realized, that my download was incomplete, although
mozilla download manager listed: "finished 73376 KB of 73376 KB"
Just missed to md5sum the download !
New download was ok. Sucessfully booted into installation menu !

Joachim

Joachim Weller

Philips Medizin Systeme Boeblingen GmbH
Cardiac and Monitoring Systems (CMS) /New Product Engineering=20
Phone: {+49|0}-7031-463-1891
Fax:   {+49|0}-7031-463-2112
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
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=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F
Gesch=E4ftsf=FChrer: Dr. Werner Haas, David Russell, Wolfgang Strenzl=20
(Sprecher)
Sitz der Gesellschaft: B=F6blingen Registergericht B=F6blingen Reg.-Nr. HRB=
=20
5187=20
Hewlett-Packard Str. 2, D 71034 Boeblingen      -GERMANY-
--=_alternative 00446629C1256C3D_=
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable


<br><font size=3D2 face=3D"sans-serif">Please ignore my posted problem. I a=
pologize not having</font>
<br><font size=3D2 face=3D"sans-serif">realized, that my download was incom=
plete, although</font>
<br><font size=3D2 face=3D"sans-serif">mozilla download manager listed: &qu=
ot;finished 73376 KB of 73376 KB&quot;</font>
<br><font size=3D2 face=3D"sans-serif">Just missed to md5sum the download !=
</font>
<br><font size=3D2 face=3D"sans-serif">New download was ok. Sucessfully boo=
ted into installation menu !</font>
<br>
<br><font size=3D2 face=3D"sans-serif">Joachim<br>
<br>
Joachim Weller<br>
<br>
Philips Medizin Systeme Boeblingen GmbH<br>
Cardiac and Monitoring Systems (CMS) /New Product Engineering <br>
Phone: {+49|0}-7031-463-1891<br>
Fax: &nbsp; {+49|0}-7031-463-2112<br>
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
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=5F=5F=5F=5F=5F<br>
Gesch=E4ftsf=FChrer: Dr. Werner Haas, David Russell, Wolfgang Strenzl (Spre=
cher)<br>
Sitz der Gesellschaft: B=F6blingen Registergericht B=F6blingen Reg.-Nr. HRB=
 5187 &nbsp;<br>
Hewlett-Packard Str. 2, D 71034 Boeblingen &nbsp; &nbsp; &nbsp;-GERMANY-</f=
ont>
--=_alternative 00446629C1256C3D_=--


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On Sun, 2002-09-22 at 17:37, Yves Bodack wrote:
> replying to myself ...
> 
> > and with 8 bpp it says:
> >
> > (EE) FBDev(0): No Display subsection in Screen section "Default Screen"
> for
> > depth/fbbpp 24/24
> > (EE) Screen(s) found, but none have a usable configuration.
> > Fatal server error:
> > no screens found
> 
> same with 16 or 32 bpp :(


Try the following in XF86Config-4

Section Screen
   ... (whatever else you need here) ...

   DefaultDepth 24
   DefaultFbBpp 32

   SubSection Display
      Depth 24
      Modes "1280x1024"
   EndSubSection

EndSection

-- SP



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On Sun, 22 Sep 2002, Tobias Giesen wrote:

> Hi all,
> 
> funny spam that was, wasn't it ...
> especially this part:
> 
> > This message is not intended for 
> > residents in the states of CA, NC, 
> > NV, RI, TN, VA & WA.
> 
> I wonder why? Is their product illegal
> in those states?

In WA, at least, spam is "illegal" and would get them a hefty fine.  I 
just wish it had more of an effect than adding that disclaimer to emails.

> 
> BTW is there anything true about the 
> HGH or is it all lies ...
> 
> Cheers,
> Tobias
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 
"An ounce of prevention is worth a ton of code."
-- an anonymous programmer



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On Fri, 20 Sep 2002, Grant Grundler wrote:

> If you have time, could you reproduce the "lockup" and then hit "TOC" button?
> If you cancel autoboot and get a PDC prompt (eg "BOOT_ADMIN>"), "ser pim"
> output will contain machine state when it was TOCed. Capture and Post that 
> output to the mailing list and someone might see what the problem is.
> 

OK.  Here it is....  The kernel is 2.4.19-64-smp from unstable, version 
18.1, so the System.map can be found there...

krakatoa:~# /bin/sh /etc/init.d/setserial start
Loading the saved-state of the serial devices...
Cannot set serial info: Device or resource busy
/dev/ttyS0 at 0x03f8 (irq = 195) is a 16550A

Firmware Version 5.0

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  I/D Cache 
  ---------  --------   ---------------------  -----------------  -------------
      0      440 MHz    Active                 Functional         512 kB/1 MB
      1      440 MHz    Idle                   Functional         512 kB/1 MB

  Central Bus Speed:                   120 MHz

  Available memory:              536870912 bytes
  Good memory required:           46678016 bytes

  Primary boot path:    FWSCSI.5.0
  Alternate boot path:  FWSCSI.6.0
  Console path:         SERIAL_1.9600.8.none
  Keyboard path:        PCI8.0.0

Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


----- Main Menu -------------------------------------------------------------

      Command                           Description
      -------                           -----------
      BOot [PRI|ALT|<path>]             Boot from specified path
      PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path
      SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices

      COnfiguration [<command>]         Access Configuration menu/commands
      INformation [<command>]           Access Information menu/commands
      SERvice [<command>]               Access Service menu/commands

      DIsplay                           Redisplay the current menu
      HElp [<menu>|<command>]           Display help for menu or command
      RESET                             Restart the system
-----
Main Menu: Enter command > ser pim toc

PROCESSOR PIM INFORMATION

-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  0000000010478480  000000001010ded4  0000000010435ac8
04-07   0000000000000041  0000000000000001  0000000000000000  0000000000000000
08-11   000000001054b5a0  0000000000000003  00000000105b8b40  00000000105646cc
12-15   0000000000000000  00000000ffffffff  0000000000000001  00000000f0400004
16-19   00000000105b8b40  00000000f000017c  00000000f0000174  0000000000000000
20-23   0000000000000000  0000000000000000  00000000104456a0  00000000105555a0
24-27   00000000105b8b40  0000000000000041  0000000010435ac8  000000001054b5a0
28-31   0000000000000000  00000000105b8ef0  00000000105b9000  000000001055e5a0

<Press any key to continue (q to quit)> 

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   000000000000295a  0000000000000000  00000000000000c0  000000000000003f
12-15   0000000000000000  0000000000000000  0000000000107000  0000000000000000
16-19   00005f379490dc48  0000000000000000  000000001010de1c  0000000000000000
20-23   0000000000000000  0000000000000000  0000007f082cff0e  a000000000000000
24-27   0000000000487000  0000000015bc1000  0000000000044021  00000000f0412000
28-31   0000000055555555  0000000055555555  00000000105b8000  00000000105c0000
Space Registers 0 - 7

00-03   000a5680          000a5680          00000000          000a5680
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x000000001010de0c
CPU State                    = 0x9e000001

Main Menu: Enter command > 

Main Menu: Enter command > reset

Resetting...


-- 
If a child annoys you, quiet him by brushing his hair.  If this doesn't
work, use the other side of the brush on the other end of the child.



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Subject: Re: [parisc-linux] RTC and FB on 735/125
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hi steve,
great, this did the trick. thank's a lot. it's quite slow, but it works in
true color :)

greetings yves...


From: "Steve Pacenka" <spacenka@lightlink.com>
Subject: Re: [parisc-linux] RTC and FB on 735/125


> On Sun, 2002-09-22 at 17:37, Yves Bodack wrote:
> > replying to myself ...
> >
> > > and with 8 bpp it says:
> > >
> > > (EE) FBDev(0): No Display subsection in Screen section "Default
Screen"
> > for
> > > depth/fbbpp 24/24
> > > (EE) Screen(s) found, but none have a usable configuration.
> > > Fatal server error:
> > > no screens found
> >
> > same with 16 or 32 bpp :(
>
>
> Try the following in XF86Config-4
>
> Section Screen
>    ... (whatever else you need here) ...
>
>    DefaultDepth 24
>    DefaultFbBpp 32
>
>    SubSection Display
>       Depth 24
>       Modes "1280x1024"
>    EndSubSection
>
> EndSection
>
> -- SP



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On Mon, 2002-09-23 at 13:36, Yves Bodack wrote:
> hi steve,
> great, this did the trick. thank's a lot. it's quite slow, but it works in
> true color :)

Yves,

It's faster than the Macintosh Quadra 610 (another Linux victim) that
I'm typing on now :^) .

Could you please post your experience at getting X applications to work
now that you have X and a desktop?  I got basic gnome things to work
flawlessly, but failed on my 735/99 with xmms, xemacs, and galeon or
mozilla.


The CRX24 framebuffer also works at 8 bit color, a bit faster.  A minor
patch to one file in the kernel is needed (duplicating a few lines that
apply to another card's depth selection in the same file) and a kernel
boot argument is needed to (optionally) cause the kernel to start video
in 8 bit mode instead of the default 32.  

The hard drive I patched this on is recycled into another type of box,
but Helge Deller can guess what's needed just from this description.

-- regards, SP

> 
> greetings yves...
> 
> 
> From: "Steve Pacenka" <spacenka@lightlink.com>
> Subject: Re: [parisc-linux] RTC and FB on 735/125
> 
> 
> > On Sun, 2002-09-22 at 17:37, Yves Bodack wrote:
> > > replying to myself ...
> > >
> > > > and with 8 bpp it says:
> > > >
> > > > (EE) FBDev(0): No Display subsection in Screen section "Default
> Screen"
> > > for
> > > > depth/fbbpp 24/24
> > > > (EE) Screen(s) found, but none have a usable configuration.
> > > > Fatal server error:
> > > > no screens found
> > >
> > > same with 16 or 32 bpp :(
> >
> >
> > Try the following in XF86Config-4
> >
> > Section Screen
> >    ... (whatever else you need here) ...
> >
> >    DefaultDepth 24
> >    DefaultFbBpp 32
> >
> >    SubSection Display
> >       Depth 24
> >       Modes "1280x1024"
> >    EndSubSection
> >
> > EndSection
> >
> > -- SP
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 



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Hi,
i got this problem solved by myself. I read out DATE in BOOT ADMIN Console
and it gave me an error (with a dump a of many zeros). Then I set a new date
in PDC and now it works just fine. So somehow the RTC was zeroed out.

Greetings Yves...

From: "Michael S. Zick" <mszick@goquest.com>
Subject: Re: [parisc-linux] RTC and FB on 735/125


> On Sunday 22 September 2002 01:30 pm, Yves Bodack wrote:
> > 1st problem I have is the Real Time Clock. On boot I get the following
> > messages:
> >
> > System Time was Thu Jan 1 00:00:10 UTC 1970
> > Setting the System Clock using the Hardware Clock as reference...
> > RTC_RD_TIME: Bad address
> > ioctl() to /dev/rtc read the time failed.
> > System Clock set. System local time is now Thu Jan 1 00:00:13 UTC 1970.
> >
> Perhaps it is really a good address and a bad clock battery.
> Mike



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On Monday 23 September 2002 20:46, Steve Pacenka wrote:
> The CRX24 framebuffer also works at 8 bit color, a bit faster.  A minor
> patch to one file in the kernel is needed (duplicating a few lines that
> apply to another card's depth selection in the same file) and a kernel
> boot argument is needed to (optionally) cause the kernel to start video
> in 8 bit mode instead of the default 32.
>
> The hard drive I patched this on is recycled into another type of box,
> but Helge Deller can guess what's needed just from this description.

Hi Steve,

I don't have a CRX24 and can't test anything. 
If you could post a patch here I could add it to the kernel.

Greetings,
Helge




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On Mon, 2002-09-23 at 16:18, Helge Deller wrote:
> On Monday 23 September 2002 20:46, Steve Pacenka wrote:
> > The CRX24 framebuffer also works at 8 bit color, a bit faster.  A minor
> > patch to one file in the kernel is needed (duplicating a few lines that
> > apply to another card's depth selection in the same file) and a kernel
> > boot argument is needed to (optionally) cause the kernel to start video
> > in 8 bit mode instead of the default 32.
> >
> > The hard drive I patched this on is recycled into another type of box,
> > but Helge Deller can guess what's needed just from this description.
> 
> Hi Steve,
> 
> I don't have a CRX24 and can't test anything. 
> If you could post a patch here I could add it to the kernel.

Good day Helge,

I can't test easily either, or generate formal patches, since my 735
w/CRX24 is in a display at our computer recycle shop.


>From memory, after consulting CVS today --

1. In drivers/video/sti/stifb.c

Inside function
   int __init
   stifb_init_fb(struct sti_struct *sti, int force_bpp)


old:

	case S9000_ID_A1439A:	/* CRX24/A1439A */
		bpp = 32;
		break;


new (insert three lines below the case):
	case S9000_ID_A1439A:	/* CRX24/A1439A */
		if (force_bpp == 8 || force_bpp == 32)
			bpp = force_bpp;
		else
			bpp = 32;
		break;


This is copied from HCRX initialization in the same switch.


2. To activate include in the kernel boot arguments (PALO or interrupt
boot with ESC):

   video=stifb:bpp:8

This is also recognized

   video=stifb:bpp:32

but that is the default.


3. To use with X, set the DefaultDepth to 8 in XF86Config-4 (leaving
fbbpp at 32), or

   startx -- -depth 8

Requires a depth 8 subsection in the monitor size section.


Perhaps Yves can test?

-- cheers, SP



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On Monday 23 September 2002 23:04, Steve Pacenka wrote:
> On Mon, 2002-09-23 at 16:18, Helge Deller wrote:
> > On Monday 23 September 2002 20:46, Steve Pacenka wrote:
> > > The CRX24 framebuffer also works at 8 bit color, a bit faster.  A minor
> > > patch to one file in the kernel is needed (duplicating a few lines that
> > > apply to another card's depth selection in the same file) and a kernel
> > > boot argument is needed to (optionally) cause the kernel to start video
> > > in 8 bit mode instead of the default 32.
> > >
> > > The hard drive I patched this on is recycled into another type of box,
> > > but Helge Deller can guess what's needed just from this description.
> >
> > Hi Steve,
> >
> > I don't have a CRX24 and can't test anything.
> > If you could post a patch here I could add it to the kernel.
>
> Good day Helge,
>
> I can't test easily either, or generate formal patches, since my 735
> w/CRX24 is in a display at our computer recycle shop.
>
>
> From memory, after consulting CVS today --
>
> 1. In drivers/video/sti/stifb.c
>
> Inside function
>    int __init
>    stifb_init_fb(struct sti_struct *sti, int force_bpp)
>
>
> old:
>
> 	case S9000_ID_A1439A:	/* CRX24/A1439A */
> 		bpp = 32;
> 		break;
>
>
> new (insert three lines below the case):
> 	case S9000_ID_A1439A:	/* CRX24/A1439A */
> 		if (force_bpp == 8 || force_bpp == 32)
> 			bpp = force_bpp;
> 		else
> 			bpp = 32;
> 		break;
>
>
> This is copied from HCRX initialization in the same switch.
>
>
> 2. To activate include in the kernel boot arguments (PALO or interrupt
> boot with ESC):
>
>    video=stifb:bpp:8
>
> This is also recognized
>
>    video=stifb:bpp:32
>
> but that is the default.
>
>
> 3. To use with X, set the DefaultDepth to 8 in XF86Config-4 (leaving
> fbbpp at 32), or
>
>    startx -- -depth 8
>
> Requires a depth 8 subsection in the monitor size section.
>
>
> Perhaps Yves can test?
>
> -- cheers, SP


Thanks Steve,

I've applied this patch to 2.4.19-pa20.

Greetings,
Helge



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* Chuck Slivkoff <caslivkoff@telocity.com> [020923 05:22]:
> I would suggest that you disconnect any disks and power on the box.  
> Make sure your null-modem cable is attached to serial port "a" and no  
> keyboard is attached via the PS2/HIL adapter box. You will need to get  
> to the PCD "BOOT_ADMIN>" prompt before you can get any further. If you  
> can not get to this prompt, take note of the LED's being displayed. The  
> service manual for the 715 should help to decode the LED's.
> 
> http://h20000.www2.hp.com/bizsupport/ 
> CoreRedirect.jsp?targetPage=http%3A%2F%2Fh200002.www2.hp.com%2Fbc%2Fdocs 
> %2Fsupport%2FSupportManual%2Flpv37699%2Flpv37699.pdf
> 
> Hope this helps.
> 
It does. With the manual i decode the LED's. They say:
Memory error! Ughf, after a long period not running the
machine a matter of time i think. So i go on and cleaned the
memory-sticks and the memory-banks 0-3. But that wasn't very
helpful. Changing the sticks to serveral banks (i did it
more than an half hour) gave me also no result. Once there
was another message from the LED's - HPMC due to memory
error! Not very helpful for me.

What kind of sticks are normal or the best one? Is there a
prefered memory-bank to use? The memory in this machine was 
attached to bank 3+2 with 72-Pin NEC and Noname chips. But
both "Made in Puerto Rico" ;). I never (really) changed the
memory since the time i got the machine.

Greets,
    Christian

-- 
[X] <--- Nail here for new Monitor.


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Any news on the SMP trouble on PA-8200 and similar? Someone said that he
would be working on it last week. I heard some stuff about it working on
64-bit kernels, but 64-bit crashes immediately on my box, SMP or no SMP.
I would really like to get this monster doing some real work, so any
news is good news.

--
Arto Jantunen


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Xref: news.gmane.org gmane.linux.ports.parisc:16261

On Tue, 24 Sep 2002, Arto Jantunen wrote:

> Any news on the SMP trouble on PA-8200 and similar? Someone said that he
> would be working on it last week. I heard some stuff about it working on
> 64-bit kernels, but 64-bit crashes immediately on my box, SMP or no SMP.
> I would really like to get this monster doing some real work, so any
> news is good news.
I don't know exactly what hardware you have, but my J5k is chugging 
happily along running 2.4.19-64-smp from sid, and the only problem I have 
encountered as of yet is a lockup when starting setserial on boot.  Other 
than that, it seems to be as stable as uniproc 32-bit.  Whatever hardware 
you have, I'm willing to bet that it isn't a J5k, and any differences 
involved may complicate things, so (as always) YMMV.

Good luck...


 > > -- > Arto 
Jantunen > _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 
You had mail.  Paul read it, so ask him what it said.



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Subject: [parisc-linux] WTS: workstation ram
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Xref: news.gmane.org gmane.linux.ports.parisc:16262

Hi

I usually just lurk here, but I've got a bunch of HP workstation memory
left over from a recent round of upgrades and I figure that it would be
useful if people here got the first chance at it. 

I have twenty used A4994A modules. These are the 256MB, 120MHz SDRAM
modules that work in the B1000, B2000, B2600, C3000, C3600, C3650, C3700,
J5600, J6000, J6700, J7000 workstations. Please note that some of those
systems require the modules to be added in pairs.

Asking price is 75USD per module. Please email me off-list if you're
interested.

Regards,

Gavin Hubbard


P.S. Please advise me if this is inappropriate content for this forum and
I'll go back to lurking.



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Xref: news.gmane.org gmane.linux.ports.parisc:16263

On Tue, Sep 24, 2002 at 01:48:31AM -0700, Jeremy Drake wrote:
> On Tue, 24 Sep 2002, Arto Jantunen wrote:
> 
> > Any news on the SMP trouble on PA-8200 and similar? Someone said that he
> > would be working on it last week. I heard some stuff about it working on
> > 64-bit kernels, but 64-bit crashes immediately on my box, SMP or no SMP.
> > I would really like to get this monster doing some real work, so any
> > news is good news.
> I don't know exactly what hardware you have, but my J5k is chugging 
> happily along running 2.4.19-64-smp from sid, and the only problem I have 
> encountered as of yet is a lockup when starting setserial on boot.  Other 
> than that, it seems to be as stable as uniproc 32-bit.  Whatever hardware 
> you have, I'm willing to bet that it isn't a J5k, and any differences 
> involved may complicate things, so (as always) YMMV.

I have a HP9000/D390. Dual PA-8200. It doesn't boot at all with that
kernel or any other 64-bit kernel. Some things do suggest that it should
work, but it doesn't. After the kernel branching point it starts
scrolling FLT codes on the LCD display, but doesn't report anything on
the console. I have a ser pim output taken out after rebooting the box
if someone is interrested. I'll try building the latest CVS with 32-bit
and SMP and see if it's any better then the ones I have tried so far.

--
Arto Jantunen


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From: "Steve Pacenka" <spacenka@lightlink.com>
Subject: Re: [parisc-linux] RTC and FB on 735/125


> Could you please post your experience at getting X applications to work
> now that you have X and a desktop?  I got basic gnome things to work
> flawlessly, but failed on my 735/99 with xmms, xemacs, and galeon or
> mozilla.
Galeon/Mozilla and XMMS start up, but they don't appear on screen and give
no errors. xemacs can't be installed, while dselect misses some dependent
packages.
I'm running KDE, that is slow but proper. And I have a woking browser at
last.

Greets,
yves...



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From: Thibaut VARENE <varenet@esiee.fr>
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Yves Bodack wrote:
> From: "Steve Pacenka" <spacenka@lightlink.com>
> Subject: Re: [parisc-linux] RTC and FB on 735/125
> 
> 
> 
>>Could you please post your experience at getting X applications to work
>>now that you have X and a desktop?  I got basic gnome things to work
>>flawlessly, but failed on my 735/99 with xmms, xemacs, and galeon or
>>mozilla.
> 
> Galeon/Mozilla and XMMS start up, but they don't appear on screen and give
Galeon/Mozilla is b0rken on hppa. You can try either Links or Konqueror...
for XMMS I don't know...

HTH,



Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Am 24.09.2002 um 13:55:53 +0200 schrieb Thibaut VARENE folgendes:

> >Galeon/Mozilla and XMMS start up, but they don't appear on screen and give

> Galeon/Mozilla is b0rken on hppa. You can try either Links or Konqueror...
> for XMMS I don't know...

And I must say, konqueror is quite acceptable.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
they're busy updating their BOFH excuse server 



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Xref: news.gmane.org gmane.linux.ports.parisc:16267

On Tue, Sep 24, 2002 at 02:28:30PM +0300, Arto Jantunen wrote:
> I have a HP9000/D390. Dual PA-8200. It doesn't boot at all with that
> kernel or any other 64-bit kernel. Some things do suggest that it should
> work, but it doesn't. After the kernel branching point it starts
> scrolling FLT codes on the LCD display, but doesn't report anything on
> the console. I have a ser pim output taken out after rebooting the box
> if someone is interrested. I'll try building the latest CVS with 32-bit
> and SMP and see if it's any better then the ones I have tried so far.

Do you have the CAP/MUX card installed?  (the card with the other serial
port on it)  If so, you should enable "Serial MUX support" and make
sure to use console=ttyB0 on the command line (ie pretend you have a K
class machine).

-- 
Revolutions do not require corporate support.


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Subject: [parisc-linux] Help wanted: XF86Config (B2600)
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This is a multipart message in MIME format.
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Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

Hi,

since yesterday, I have up and running a B2600 with Debian woody 3.0,
but I can't setup  X11 Configuration for the built in PCI Grafic card,
using framebuffer driver.

The error message in  /etc/XFree86.0.log (XFree86 Version 4.1.0.1)=20
says:
(EE) No devices detected.

although I have put in /etc/X11/XF86Config:

Section "Device"
        BoardName       "hp-3D"
        Identifier      "Device[0]"
        BusID           "1:3:0"=20
        Driver          "fbdev"
        Option          "UseFBDev"              "true"
        Screen          0
EndSection

The BusID was determined by  "cat /proc/pci" :
  Bus  1, device   3, function  0:
    3D controller: PCI device 103c:108b (Hewlett-Packard Company) (rev 5).
      IRQ 258.
      Master Capable.  Latency=3D255.
      Prefetchable 64 bit memory at 0xfffffffffb000000=20
[0xfffffffffbffffff].
      Non-prefetchable 64 bit memory at 0xfffffffffa000000=20
[0xfffffffffaffffff].

If anybody has the same grafic card running, I would very much appreciate
to get a working XF86Config or any tips to resolve that problem.

Regards,
       Joachim

Joachim Weller

Philips Medizin Systeme Boeblingen GmbH
Cardiac and Monitoring Systems (CMS) /New Product Engineering=20
Phone: {+49|0}-7031-463-1891
Fax:   {+49|0}-7031-463-2112
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
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=5F=5F=5F=5F=5F
Gesch=E4ftsf=FChrer: Dr. Werner Haas, David Russell, Wolfgang Strenzl=20
(Sprecher)
Sitz der Gesellschaft: B=F6blingen Registergericht B=F6blingen Reg.-Nr. HRB=
=20
5187=20
Hewlett-Packard Str. 2, D 71034 Boeblingen      -GERMANY-
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<br><font size=3D2 face=3D"sans-serif">Hi,</font>
<br>
<br><font size=3D2 face=3D"sans-serif">since yesterday, I have up and runni=
ng a B2600 with Debian woody 3.0,</font>
<br><font size=3D2 face=3D"sans-serif">but I can't setup &nbsp;X11 Configur=
ation for the built in PCI Grafic card,</font>
<br><font size=3D2 face=3D"sans-serif">using framebuffer driver.</font>
<br>
<br><font size=3D2 face=3D"sans-serif">The error message in &nbsp;/etc/XFre=
e86.0.log (XFree86 Version 4.1.0.1) </font>
<br><font size=3D2 face=3D"sans-serif">says:</font>
<br><font size=3D2 face=3D"sans-serif">(EE) No devices detected.</font>
<br>
<br><font size=3D2 face=3D"sans-serif">although I have put in /etc/X11/XF86=
Config:</font>
<br>
<br><font size=3D2 face=3D"sans-serif">Section &quot;Device&quot;</font>
<br><font size=3D2 face=3D"sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; BoardNam=
e &nbsp; &nbsp; &nbsp; &nbsp;&quot;hp-3D&quot;</font>
<br><font size=3D2 face=3D"sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; Identifi=
er &nbsp; &nbsp; &nbsp; &nbsp;&quot;Device[0]&quot;</font>
<br><font size=3D2 face=3D"sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; BusID &n=
bsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&quot;1:3:0&quot; &nbs=
p; &nbsp; &nbsp; &nbsp;</font>
<br><font size=3D2 face=3D"sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; Driver &=
nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&quot;fbdev&quot;</fo=
nt>
<br><font size=3D2 face=3D"sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; Option &=
nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&quot;UseFBDev&quot; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&quot;true&quot;</fo=
nt>
<br><font size=3D2 face=3D"sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; Screen &=
nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0</font>
<br><font size=3D2 face=3D"sans-serif">EndSection</font>
<br>
<br><font size=3D2 face=3D"sans-serif">The BusID was determined by &nbsp;&q=
uot;cat /proc/pci&quot; :</font>
<br><font size=3D2 face=3D"sans-serif">&nbsp; Bus &nbsp;1, device &nbsp; 3,=
 function &nbsp;0:</font>
<br><font size=3D2 face=3D"sans-serif">&nbsp; &nbsp; 3D controller: PCI dev=
ice 103c:108b (Hewlett-Packard Company) (rev 5).</font>
<br><font size=3D2 face=3D"sans-serif">&nbsp; &nbsp; &nbsp; IRQ 258.</font>
<br><font size=3D2 face=3D"sans-serif">&nbsp; &nbsp; &nbsp; Master Capable.=
 &nbsp;Latency=3D255.</font>
<br><font size=3D2 face=3D"sans-serif">&nbsp; &nbsp; &nbsp; Prefetchable 64=
 bit memory at 0xfffffffffb000000 [0xfffffffffbffffff].</font>
<br><font size=3D2 face=3D"sans-serif">&nbsp; &nbsp; &nbsp; Non-prefetchabl=
e 64 bit memory at 0xfffffffffa000000 [0xfffffffffaffffff].</font>
<br>
<br><font size=3D2 face=3D"sans-serif">If anybody has the same grafic card =
running, I would very much appreciate</font>
<br><font size=3D2 face=3D"sans-serif">to get a working XF86Config or any t=
ips to resolve that problem.</font>
<br>
<br><font size=3D2 face=3D"sans-serif">Regards,</font>
<br><font size=3D2 face=3D"sans-serif">&nbsp; &nbsp; &nbsp; &nbsp;Joachim<b=
r>
<br>
Joachim Weller<br>
<br>
Philips Medizin Systeme Boeblingen GmbH<br>
Cardiac and Monitoring Systems (CMS) /New Product Engineering <br>
Phone: {+49|0}-7031-463-1891<br>
Fax: &nbsp; {+49|0}-7031-463-2112<br>
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F<br>
Gesch=E4ftsf=FChrer: Dr. Werner Haas, David Russell, Wolfgang Strenzl (Spre=
cher)<br>
Sitz der Gesellschaft: B=F6blingen Registergericht B=F6blingen Reg.-Nr. HRB=
 5187 &nbsp;<br>
Hewlett-Packard Str. 2, D 71034 Boeblingen &nbsp; &nbsp; &nbsp;-GERMANY-</f=
ont>
--=_alternative 00460EA7C1256C3E_=--


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Subject: RE: [parisc-linux] Help wanted: XF86Config (B2600)
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Xref: news.gmane.org gmane.linux.ports.parisc:16269

Hey Joachim,

Have first a look with dmesg.

For my b2k a get unfortunately:
...
STI device: HPA4982A
stifb: Unsupported gfx card id 0x35acda16
...

Joel

>-- Original Message --
>From: joachim.weller@philips.com
>To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] Help wanted: XF86Config (B2600)
>Date: Tue, 24 Sep 2002 14:40:33 +0200
>
>
>Hi,
>
>since yesterday, I have up and running a B2600 with Debian woody 3.0,
>but I can't setup  X11 Configuration for the built in PCI Grafic card,
>using framebuffer driver.
>
>The error message in  /etc/XFree86.0.log (XFree86 Version 4.1.0.1) 
>says:
>(EE) No devices detected.
>
>although I have put in /etc/X11/XF86Config:
>
>Section "Device"
>        BoardName       "hp-3D"
>        Identifier      "Device[0]"
>        BusID           "1:3:0" 
>        Driver          "fbdev"
>        Option          "UseFBDev"              "true"
>        Screen          0
>EndSection
>
>The BusID was determined by  "cat /proc/pci" :
>  Bus  1, device   3, function  0:
>    3D controller: PCI device 103c:108b (Hewlett-Packard Company) (rev 5).
>      IRQ 258.
>      Master Capable.  Latency=255.
>      Prefetchable 64 bit memory at 0xfffffffffb000000 
>[0xfffffffffbffffff].
>      Non-prefetchable 64 bit memory at 0xfffffffffa000000 
>[0xfffffffffaffffff].
>
>If anybody has the same grafic card running, I would very much appreciate
>to get a working XF86Config or any tips to resolve that problem.
>
>Regards,
>       Joachim
>
>Joachim Weller
>
>Philips Medizin Systeme Boeblingen GmbH
>Cardiac and Monitoring Systems (CMS) /New Product Engineering 
>Phone: {+49|0}-7031-463-1891
>Fax:   {+49|0}-7031-463-2112
>________________________________________________________________________________
>Gesch?ftsf?hrer: Dr. Werner Haas, David Russell, Wolfgang Strenzl 
>(Sprecher)
>Sitz der Gesellschaft: B?blingen Registergericht B?blingen Reg.-Nr. HRB

>5187 
>Hewlett-Packard Str. 2, D 71034 Boeblingen      -GERMANY-



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joachim.weller@philips.com wrote:

> The BusID was determined by  "cat /proc/pci" :
>   Bus  1, device   3, function  0:
>     3D controller: PCI device 103c:108b (Hewlett-Packard Company) (rev 5).
>       IRQ 258.
>       Master Capable.  Latency=255.
>       Prefetchable 64 bit memory at 0xfffffffffb000000 
> [0xfffffffffbffffff].
>       Non-prefetchable 64 bit memory at 0xfffffffffa000000 
> [0xfffffffffaffffff].
it's a FXE card, unsupported.
Only Vis-EG are.
Support for these cards is planned to be worked on ;)


HTH,

Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Merci beacoup Thibault,

> it's a FXE card, unsupported.
> Only Vis-EG are.
> Support for these cards is planned to be worked on ;)

Would it be possible to plug in a standard PC PCI Grafics card, like lets=20
say
a vanilla matrox  mgag550 and use that driver ?

Joachim Weller

Philips Medizin Systeme Boeblingen GmbH
Cardiac and Monitoring Systems (CMS) /New Product Engineering=20
Phone: {+49|0}-7031-463-1891
Fax:   {+49|0}-7031-463-2112
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F
Gesch=E4ftsf=FChrer: Dr. Werner Haas, David Russell, Wolfgang Strenzl=20
(Sprecher)
Sitz der Gesellschaft: B=F6blingen Registergericht B=F6blingen Reg.-Nr. HRB=
=20
5187=20
Hewlett-Packard Str. 2, D 71034 Boeblingen      -GERMANY-

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<br><font size=3D2 face=3D"Courier New">Merci beacoup Thibault,</font>
<br>
<br><font size=3D2 face=3D"Courier New">&gt; it's a FXE card, unsupported.<=
br>
&gt; Only Vis-EG are.<br>
&gt; Support for these cards is planned to be worked on ;)<br>
</font><font size=3D2 face=3D"sans-serif"><br>
Would it be possible to plug in a standard PC PCI Grafics card, like lets s=
ay</font>
<br><font size=3D2 face=3D"sans-serif">a vanilla matrox &nbsp;mgag550 and u=
se that driver ?</font>
<br><font size=3D2 face=3D"sans-serif"><br>
Joachim Weller<br>
<br>
Philips Medizin Systeme Boeblingen GmbH<br>
Cardiac and Monitoring Systems (CMS) /New Product Engineering <br>
Phone: {+49|0}-7031-463-1891<br>
Fax: &nbsp; {+49|0}-7031-463-2112<br>
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F<br>
Gesch=E4ftsf=FChrer: Dr. Werner Haas, David Russell, Wolfgang Strenzl (Spre=
cher)<br>
Sitz der Gesellschaft: B=F6blingen Registergericht B=F6blingen Reg.-Nr. HRB=
 5187 &nbsp;<br>
Hewlett-Packard Str. 2, D 71034 Boeblingen &nbsp; &nbsp; &nbsp;-GERMANY-</f=
ont>
<br>
--=_alternative 004B16BAC1256C3E_=--


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joachim.weller@philips.com wrote:
> 
> Merci beacoup Thibault,
> 
>  > it's a FXE card, unsupported.
>  > Only Vis-EG are.
>  > Support for these cards is planned to be worked on ;)
> 
> Would it be possible to plug in a standard PC PCI Grafics card, like 
> lets say
> a vanilla matrox  mgag550 and use that driver ?
> 

IIRC, some are supported (weren't we talking about Voodoo2 recently ? :)
You should take a look at the m-l archive:
http://www.parisc-linux.org/mailing-lists/


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Matthew Wilcox <willy@debian.org> writes:

> On Tue, Sep 24, 2002 at 02:28:30PM +0300, Arto Jantunen wrote:
> > I have a HP9000/D390. Dual PA-8200. It doesn't boot at all with that
> > kernel or any other 64-bit kernel. Some things do suggest that it should
> > work, but it doesn't. After the kernel branching point it starts
> > scrolling FLT codes on the LCD display, but doesn't report anything on
> > the console. I have a ser pim output taken out after rebooting the box
> > if someone is interrested. I'll try building the latest CVS with 32-bit
> > and SMP and see if it's any better then the ones I have tried so far.
> 
> Do you have the CAP/MUX card installed?  (the card with the other serial
> port on it)  If so, you should enable "Serial MUX support" and make
> sure to use console=ttyB0 on the command line (ie pretend you have a K
> class machine).

Is that the so called remote admin card you told me to remove?-) If it
is, no I don't have it in there because I was told to remove it. Will
putting it back actually fix problems? Will it cause problems? It did
before. Where should I connect my console after putting it back in?

-- 
Arto Jantunen


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On Tue, Sep 24, 2002 at 05:47:50PM +0300, Arto Jantunen wrote:
> Is that the so called remote admin card you told me to remove?-) If it

That's the one...

> is, no I don't have it in there because I was told to remove it. Will
> putting it back actually fix problems? Will it cause problems? It did
> before. Where should I connect my console after putting it back in?

Let's leave it out for the moment -- fewer variables the better.  If you
build a serial console kernel and you're not getting any output before
the machine hangs, it's time to break out the PDC console debugger.
Edit arch/parisc/kernel/pdc_cons.c and change #undef EARLY_BOOTUP_DEBUG
to #define EARLY_BOOTUP_DEBUG.  Let us know how you get on with that.

-- 
Revolutions do not require corporate support.


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On Tue, 2002-09-24 at 07:42, Yves Bodack wrote:
> From: "Steve Pacenka" <spacenka@lightlink.com>
> Subject: Re: [parisc-linux] RTC and FB on 735/125
> 
> 
> > Could you please post your experience at getting X applications to work
> > now that you have X and a desktop?  I got basic gnome things to work
> > flawlessly, but failed on my 735/99 with xmms, xemacs, and galeon or
> > mozilla.
> Galeon/Mozilla and XMMS start up, but they don't appear on screen and give
> no errors. xemacs can't be installed, while dselect misses some dependent
> packages.

Thanks for posting the results.

Those are basically the same problems I encountered a couple of months
ago.   I also tried to compile Xemacs from source and it suffered a
runtime startup failure.   It's puzzling how the Gnome desktop and KDE
work well with all of their complex shared library and data file
loading, but these other packages fail.


> I'm running KDE, that is slow but proper. And I have a woking browser at
> last.

Aha, Konqueror.  Thanks for the hint.  I can set up my demo 735/99 with
KDE, Konqueror, and KMail.

-- thanks, SP



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From: Steve Pacenka <spacenka@lightlink.com>
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On Tue, 2002-09-24 at 07:55, Thibaut VARENE wrote:

> > From: "Steve Pacenka" <spacenka@lightlink.com>
> > Subject: Re: [parisc-linux] RTC and FB on 735/125
> > 
> >>Could you please post your experience at getting X applications to work
> >>now that you have X and a desktop?  I got basic gnome things to work
> >>flawlessly, but failed on my 735/99 with xmms, xemacs, and galeon or
> >>mozilla.
> > 

> > Galeon/Mozilla and XMMS start up, but they don't appear on screen and give
> Galeon/Mozilla is b0rken on hppa. You can try either Links or Konqueror...
> for XMMS I don't know...


Thanks for feeeback.

I got the command line alsaplayer mp3 player to work on the 735; perhaps
some front ends that use this or mpg123 could replace xmms.

-- SP



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Steve Pacenka wrote:
> On Tue, 2002-09-24 at 07:55, Thibaut VARENE wrote:
> 
> 
>>>Galeon/Mozilla and XMMS start up, but they don't appear on screen and give
>>
>>Galeon/Mozilla is b0rken on hppa. You can try either Links or Konqueror...
>>for XMMS I don't know...
> 
> 
> 
> Thanks for feeeback.
> 
> I got the command line alsaplayer mp3 player to work on the 735; perhaps
> some front ends that use this or mpg123 could replace xmms.
Well I just tried xmms on a B132L+, it worked just fine...


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Trying to install debian 3.0 on a c110 w/ 2 scsi hd 2.0 gig and 512megs of
ram. When I run apt-get I get io error
Then tells me to try to reinstall I do that and get the same error?
Dan McLaughlin
Help Desk
 

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On Tue, 2002-09-24 at 10:33, Thibaut VARENE wrote:
> Steve Pacenka wrote:
> > On Tue, 2002-09-24 at 07:55, Thibaut VARENE wrote:
> > 
> > 
> >>>Galeon/Mozilla and XMMS start up, but they don't appear on screen and give
> >>
> >>Galeon/Mozilla is b0rken on hppa. You can try either Links or Konqueror...
> >>for XMMS I don't know...
> > 

i've had both konqueror & xmms working fine on my 712/60

there's also a browser called dillo available as a package - muchj
faster on the slower machines, but also supports far less features

i also found one written in TCL called browsex  available at browsex.com
not tried it yet, but being as its written in tcl, it *should* work :)

James S







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Gavin Hubbard wrote:
> I have twenty used A4994A modules. These are the 256MB, 120MHz SDRAM
> modules that work in the B1000, B2000, B2600, C3000, C3600, C3650, C3700,
> J5600, J6000, J6700, J7000 workstations. Please note that some of those
> systems require the modules to be added in pairs.

Will also work on A400 and A500 (ie rp24xx) boxes.
Possibly on L1000 and L2000 but don't know how picky PDC
is on those boxes.

grant


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On Tuesday 24 September 2002 07:55 am, Thibaut VARENE wrote:
> Yves Bodack wrote:
> > From: "Steve Pacenka" <spacenka@lightlink.com>
> > Subject: Re: [parisc-linux] RTC and FB on 735/125
> >
> >>Could you please post your experience at getting X applications to work
> >>now that you have X and a desktop?  I got basic gnome things to work
> >>flawlessly, but failed on my 735/99 with xmms, xemacs, and galeon or
> >>mozilla.
> >
> > Galeon/Mozilla and XMMS start up, but they don't appear on screen and
> > give
>
> Galeon/Mozilla is b0rken on hppa. You can try either Links or Konqueror...
> for XMMS I don't know...
>
I have used gqmpeg as an xmms replacement with mpg123.

I am on a 735/99 also. I use fvwm2, konqueror, kmail, and motif stuff. I 
compiled openmotif on this box.

Some X apps and other apps that don't work: 
ghostscript - works on a 712/100 though
xdvi
xfontsel
xman


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Yasholomew Yashinski wrote:
>  Heya Gents,
> 
>  I hope all is well. I see that Debian 3 is available now for hppa, so I
> recently burnt it to try on my B1000. I went to install it tonight,
> however it's rebooting with:
> 
> High Priority Machine Check (HPMC): Code=1 regs=102f3080 (Addr=000000000)
> 
> and on the LCD: FLT CBFB4

FLT CBFB4 is HPMC. Odd that it dies with an HPMC.

Can you send "ser pim" output to parisc-linux mailing list?
(hint: setup serial console to capture that)

And can you try one of the more recent net install ISO's from ESIEE?
See www.parisc-linux.org front page for links to ESIEE downloads.

>  as soon as it hits Init/BusyBox. Am I to assume the A4977a Vis EG-PCI is
> still unsupported? If so, any idea when it will be supported? If it is now
> supported, any idea what needs to change on my end?

Vis-EG PCI is supported and working as a Frame buffer.
That's known to work on B180/C200/B2600/C3000 and probably a few others.

grant


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Dan McLaughlin wrote:
> Trying to install debian 3.0 on a c110 w/ 2 scsi hd 2.0 gig and 512megs of
> ram. When I run apt-get I get io error

Can you capture console output?
Is apt-get trying to read from CD that's not inserted?
Is the 2GB HD known to be good?

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:16284

On Tue, 24 Sep 2002, Grant Grundler wrote:

> >  I hope all is well. I see that Debian 3 is available now for hppa, so I
> > recently burnt it to try on my B1000. I went to install it tonight,
> > however it's rebooting with:
> >
> > High Priority Machine Check (HPMC): Code=1 regs=102f3080 (Addr=000000000)
> >
> > and on the LCD: FLT CBFB4
>
> FLT CBFB4 is HPMC. Odd that it dies with an HPMC.

 If I boot off the disk (0.9.3 with dist-upgrade, and kernel upgrade), it
seems to work okay, I get to:

 Starting periodic command scheduler: cron.
and then the cursor just flashes. (Tux is in the top left)
At this point the LCD states "Linux 2.4.1932" which is correct.
I use serial console no problem at this stage.

 When I try to boot off the CD I just burnt, it dies with the error
message I placed above. The image I burnt was
debian-30r0-hppa-binary-1.iso from the 2nd ftp site, I just took a guess
which is the proper one to use, as you'll read in my comments below.

> Can you send "ser pim" output to parisc-linux mailing list?
> (hint: setup serial console to capture that)

This is long. I have added addtional comments below.

Main Menu: Enter command > ser pim

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp =
  Tue Sep  24 19:22:19 GMT 2002    (20:02:09:24:19:22:19)

HPMC Chassis Codes = 2cbf0  2500b  2cbfb

General Registers 0 - 31
00-03   0000000000000000  0000000000029a90  0000000000000008
00000000401d3000
04-07   0000000000000000  0000000000000000  0000000000000007
0000000000000001
08-11   0000000000000010  0000000000000001  00000000faf005d0
0000000000000010
12-15   0000000000029a90  0000000000000000  0000000000029a90
0000000000000000
16-19   000000000002b010  0000000000029a90  0000000000029a90
00000000401d3000
20-23   0000000000000000  0000000000000000  000000000000001c
0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000
0000000000029a90
28-31   0000000000000008  0000000000000000  00000000faf00700
0000000000000000

<Press any key to continue (q to quit)>

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000
0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000
0000000000000000
08-11   0000000000000222  0000000000000000  00000000000000c0
000000000000001e
12-15   0000000000000000  0000000000000000  0000000000105000
00000000ffffffff
16-19   0000000b8cba9370  0000000000000111  000000000001555f
000000000e661200
20-23   00000000100403ec  40000000001d3000  00000000000cff0f
0000000000000000
24-27   000000000030b000  000000000f29c000  00000000ffffffff
00000000ffffffff
28-31   00000000ffffffff  00000000ffffffff  000000001f308000
00000000103a0000
Space Registers 0 - 7

00-03   00000111          00000111          00000000          00000111
04-07   00000111          00000111          00000111          00000111

<Press any key to continue (q to quit)>

IIA Space                    = 0x0000000000000111
IIA Offset                   = 0x00000000000151b3
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x003010bb
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00031800
System Responder Address     = 0xfffffffffed10200
System Requestor Address     = 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000
0000000000000000
04-07   1030381000000001  0000000110149d78  000000020028a286
0000000000000000
08-11   1030a02000000002  ffffffff0000000a  0000000000000000
103aed9f00000000
12-15   0000000000000000  0000000010139d8c  0000000010303810
1030081010300810
16-19   1f4a50001039c000  0000000000000002  0000000010300810
1039b8101f4a5000
20-23   1039c00000000000  0000000200000000  0000000000000000
0000000000000000
24-27   0000080000000000  0000001e00000000  103b4d64102b9364
1f4a5005102b9474
28-31   3031323334353637  3839616210139f94  6768696a6b6c6d6e
6f70717273747576

<Press any key to continue (q to quit)>


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81041000000000
Available Memory             = 0x0000000010000000
CPU Diagnose Register 2      = 0x0203000000000004
CPU Status Register 0        = 0x2420c20000000000
CPU Status Register 1        = 0x8080000000000000
SADD LOG                     = 0x010008a100000001
Read Short LOG               = 0xc1a0f0f0f0400804
ERROR_STATUS                 = 0x0000000000000010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0xc1bff0fffed08040
RUN_DATA_LOW                 = 0xc1bff0fffed08040
RUN_CTRL                     = 0x0000021c00001418
RUN_ADDR                     = 0xc1bff0fffed08040
System Responder Path        = 0x00ffffffffffffff


HPMC PIM Analysis Information:

Timestamp =
  Tue Sep  24 19:22:19 GMT 2002    (20:02:09:24:19:22:19)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304
bytes:

A Data Miss Timeout occurred while CPU 0 was
requesting information.


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not
log
any additional information about the HPMC.

<Press any key to continue (q to quit)>

-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000


-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000
0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000
0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000
0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000
0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000
0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000
0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000
0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000
0000000000000000

<Press any key to continue (q to quit)>

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000
0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000
0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000
0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000
0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000
0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000
0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000
0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000
0000000000000000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000000000
CPU State                    = 0x00000000


<Press any key to continue (q to quit)>

Memory Error Log Information:

Timestamp =
  Tue Sep  24 19:22:19 GMT 2002    (20:02:09:24:19:22:19)


'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:

   No memory errors logged


I/O Module Error Log Information:

Timestamp =
  Tue Sep  24 19:22:19 GMT 2002    (20:02:09:24:19:22:19)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc009   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    0x00000000   0x4e0cc009   0x00000000fed38048
   5    ----------   0x5e0cc009   ------------------
   6    0x00000000   0x6e0cc009   0x00000000fed3c048
   7    ----------   0x7e0cc009   ------------------
Main Menu: Enter command >

> And can you try one of the more recent net install ISO's from ESIEE?
> See www.parisc-linux.org front page for links to ESIEE downloads.

 Sure, I'll let you know.

 Just a few comments on the two websites.

http://pateam.esiee.fr/ could use an English editor:
 "This website is run by a"  # ran is past tense.
 "Please forgive us if either.. or the server has some troubles" # the
users shouldn't have to apologize to the authors.
 "see the announcement"
 "If you have any questions, suggestions or comments, feel free to contact
us at any time"
 "on the project, the team, and.."
 "Latest News"

http://www.parisc-linux.org
 There are three mirrors containing 600+ MB ISOs. The first link is
broken.
 What is the difference between debian-30r0-hppa-binary-1.iso and
debian-30r0-hppa-binary-1_NONUS.iso on the second ftp site? What are the
other files? (A README in that directory with a brief description of each
would be great).
 When the third ftp site works (only a few times in the past 48 hours,
when I've tried), it contains different files than the others. A README
file would be great here as well.

> >  as soon as it hits Init/BusyBox. Am I to assume the A4977a Vis EG-PCI is
> > still unsupported? If so, any idea when it will be supported? If it is now
> > supported, any idea what needs to change on my end?
>
> Vis-EG PCI is supported and working as a Frame buffer.
> That's known to work on B180/C200/B2600/C3000 and probably a few others.

 Where is this documented? All I could find was the 0.9.3 release
information saying it isn't working yet.

 Thanks for all your efforts in this project. I can't wait to use my
framebuffer on this machine finally. HP/UX is unfortunately too expensive
for a home user, at least from what documentation I could find.

 Signet,

--
Yashy



From - Thu Nov 08 21:24:48 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:16285

Le mercredi, 25 sep 2002, =E0 06:46 Europe/Paris, Yasholomew Yashinski a=20=

=E9crit :

>  Just a few comments on the two websites.
>
> http://pateam.esiee.fr/ could use an English editor:
>  "This website is run by a"  # ran is past tense.
>  "Please forgive us if either.. or the server has some troubles" # the
> users shouldn't have to apologize to the authors.
>  "see the announcement"
>  "If you have any questions, suggestions or comments, feel free to=20
> contact
> us at any time"
>  "on the project, the team, and.."
>  "Latest News"
Welle, thanq yoo fore yoore elp. I wil trye tou corecte som errorz !
Dide yoo noticed da '.fr' at thee ende off da naime ? ;^)
Wee are damne franch pipol, we dont now Inglish ! ;o]

T.V. - The guy who now handle the pateam website maintaining  =3D)

/me ducks !


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/
for any b4d english comment, mail us at=20
mailto:puffin@esiee.fr?subject=3Db4d_3ngl1sh=



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Hi Brian,

>-- Original Message --
>Date: Sun, 22 Sep 2002 16:45:47 -0500
>From: "Bryan W. Headley" <bwheadley@earthlink.net>
>To: Joel Soete <joel.soete@freebel.net>
>CC: Derek Engelhaupt <derekengelhaupt@rocketmail.com>, 
> parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] Mouse stops working when exiting KDE
>
>
>Joel Soete wrote:
>
>>> I assume you are running the gpm mouse daemon as well. If you tell X

>>> to use the gpm mouse (/dev/gpmdata), you should be okay.
>> 
>> 
>> Hmm, long time ago I test this (because that was like this I configure
>
>> my i386 boxe) but it did not work. Does it work now on parisc?
>
>Last time I checked, it did.

Sorry, the last test I do on my b180 and gpmdata as mouse driver does not
work :)
(xfree86-4.1)

Hmm I just notice this funny behaviour:
I start gdm, I login -> the cursor work normaly :)
I quit my X session -> the cursor doesn't work any more ...
I would like to see at the console if I can see some error messages, so I
swich to sti mode (CTRL+ALT f1)... ok that works. No error messages, so I
can come back to gdm login screen (CTRL+ALT f7), oh the cursor move again
normaly ?

Any idea?

Thanks in advance,
    Joel

PS: kernel 2.4.18-pa61 + apt-get dist_upgrade this 2002-09-24



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I have a HP 712 that I'd purchased recently.

My question is:

Can I use a PC monitor, keyboard, and mouse to boot the thing up?  If so,
does the monitor have to be a multisync or something special?

In addition, HP-UX is on the hard drive but is locked down.  I was
thinking of buying an external CD drive and attempting to load debian
0.93.  Can anyone recommend a place to buy the CD drive that they have
dealt with?  I also have a network so I could attempt a network install
but I am not sure what minimum requirements I'd need to fulfill for that.
 Is my approach the right one?

Thanks for the advice...

Stephen de Vries


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Hi all,

Following my investigation to fix the problem of 64bits integer transfer
between kernel and user space (put_user in uaccess.h), I still had a problem:

how to access of the two int (32bit) parts of a long long?

In mips sources I found this interresting stuff:
__put_user_asm_ll32
...
    1:    sw    %1, %2
    2:    sw    %D1, %3
....

which would correspond to what I need but it is not available for hppa.

So I do something like:
...
#define STD_USER(x, ptr)                      \
({                                            \
    unsigned int xh = (unsigned int)(x>>32),  \
                 xl = (unsigned int) (x);     \
    __put_user_asm_64(xh, xl, ptr);           \
})
...

and so 
...
#define __put_user_asm_64(xh, xl, ptr)                      \
        __asm__ __volatile__ (                              \
                "\n1:\tstw\t%2,0(%%sr3,%1)\n"               \
                "2:\tstw\t%3,4(%%sr3,%1)\n"                 \
                "3:\n"                                      \
                "\t.section __ex_table,\"a\"\n"             \
                 "\t.word\t1b\n"                            \
                 "\t.word\t(3b-1b)+1\n"                     \
                 "\t.word\t2b\n"                            \
                 "\t.word\t(3b-2b)+1\n"                     \
                 "\t.previous"                              \
                : "=r"(__pu_err)                            \
                : "r"(ptr), "r"(xh), "r"(xl), "0"(__pu_err))
...

which has a border effect:
tty_ioctl.c: In function `get_termio':
tty_ioctl.c:175: warning: right shift count >= width of type
tty_ioctl.c:175: warning: right shift count >= width of type
tty_ioctl.c:175: warning: right shift count >= width of type
tty_ioctl.c:175: warning: right shift count >= width of type
tty_ioctl.c:175: warning: right shift count >= width of type

Is there some other means somewhere else?

Thanks in advance,
    Joel



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From: Thibaut VARENE <varenet@esiee.fr>
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Date: Wed, 25 Sep 2002 15:34:07 +0200
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Stephen J de Vries wrote:
> I have a HP 712 that I'd purchased recently.
> 
> My question is:
> 
> Can I use a PC monitor, keyboard, and mouse to boot the thing up?  If so,
> does the monitor have to be a multisync or something special?
OK for the PC monitor. Use 'Tab' at boot time to switch 712's resolution
NO for the PC keyboard (pc kbd is 75mA iirc, 712 is 500mA)
I don't know for the mouse.
> 
> In addition, HP-UX is on the hard drive but is locked down.  I was
> thinking of buying an external CD drive and attempting to load debian
> 0.93.  Can anyone recommend a place to buy the CD drive that they have
> dealt with?  I also have a network so I could attempt a network install
> but I am not sure what minimum requirements I'd need to fulfill for that.
You can unlock HP/UX pretty easily if the box isn't in secure mode.
Just stop the boot sequence and at the BOOT_ADMIN prompt type 'bo pri ipl'

Then answer 'y' to the 'interract with...' question, and then type (i 
don't know if we can say this here ;o)

hpux -iS

If the box is in secure mode there is a workaround:
Open it, unplug the HD, boot it, wait for timeout, and then deactivate 
the secure mode ;)
then reboot again.


You can definitly use network to install.
Check the palinux boot howto.
I recommend you use the latest version (still under review, that's why 
it's not yet available on tldp):
http://testpa.esiee.fr/.test/parisc-linux-boot.html

You will find all useful info there.


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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On Wed, 25 Sep 2002, Thibaut VARENE wrote:

> Stephen J de Vries wrote:
> > I have a HP 712 that I'd purchased recently.
> >
> > My question is:
> >
> > Can I use a PC monitor, keyboard, and mouse to boot the thing up?  If so,
> > does the monitor have to be a multisync or something special?
> OK for the PC monitor. Use 'Tab' at boot time to switch 712's resolution
> NO for the PC keyboard (pc kbd is 75mA iirc, 712 is 500mA)
Hhmm. I have used two different PS/2 keyboards on a 712. So far nothing
unexpected has happened to either the box nor the keyboard... it works just
fine.

ad



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This message is in MIME format. Since your mail reader does not understand
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> -----Original Message-----
> From: Stephen J de Vries [mailto:paulhill20@juno.com]
> I have a HP 712 that I'd purchased recently.
> 
> 
> Can I use a PC monitor, keyboard, and mouse to boot the thing 
> up?  If so,
> does the monitor have to be a multisync or something special?

I've had a 712 (running HP-UX 10.20) with a multisync monitor (compaq,
before the merger) running verry well.

As I recal, the monitor should do a sync-on-green. If you don't get a proper
picture and have a monitor-cable connection with bnc connectors, try putting
the cable-sync on the monitor-green. This should give a sharp (bad collored)
picture.

For the mouse, the HP mouse that came with the device looks verry much like
a logitech mouse with a black logitech icon. 2 exceptions: the labels differ
and the logitech has a shorter cable. The same logitech with a colored icon
on top does not work. The mouse must be a native ps/2 mouse, not one that
can do serial-mousing too.

For the keyboard: try and see what you get. No experiences with alternates
here. As with the mouse, the keyboard must be native ps/2 since it does not
get any initialize command. An easy test here is that if the bootloader
finds a keyboard, it wil use that keyboard and the video-card for
bootconsole. If the keyboard is not found, the serial-port (9600-8-N) is
used for console.

> 
> In addition, HP-UX is on the hard drive but is locked down.  I was
> thinking of buying an external CD drive and attempting to load debian
> 0.93.  Can anyone recommend a place to buy the CD drive that they have

Any scsi cd-rom that can do a 2K blocksize will do for booting. After boot,
there is no difference. HP-s are relabeled Toshiba's. 

> dealt with?  I also have a network so I could attempt a 
> network install
> but I am not sure what minimum requirements I'd need to 
> fulfill for that.
>  Is my approach the right one?

It's one right one, out of manny...


CBee

------_=_NextPart_001_01C2649C.30D8B720
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	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Diso-8859-1">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2654.45">
<TITLE>RE: [parisc-linux] hardware newbie question...</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: Stephen J de Vries [<A =
HREF=3D"mailto:paulhill20@juno.com">mailto:paulhill20@juno.com</A>]</FON=
T>
<BR><FONT SIZE=3D2>&gt; I have a HP 712 that I'd purchased =
recently.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Can I use a PC monitor, keyboard, and mouse to =
boot the thing </FONT>
<BR><FONT SIZE=3D2>&gt; up?&nbsp; If so,</FONT>
<BR><FONT SIZE=3D2>&gt; does the monitor have to be a multisync or =
something special?</FONT>
</P>

<P><FONT SIZE=3D2>I've had a 712 (running HP-UX 10.20) with a multisync =
monitor (compaq, before the merger) running verry well.</FONT>
</P>

<P><FONT SIZE=3D2>As I recal, the monitor should do a sync-on-green. If =
you don't get a proper picture and have a monitor-cable connection with =
bnc connectors, try putting the cable-sync on the monitor-green. This =
should give a sharp (bad collored) picture.</FONT></P>

<P><FONT SIZE=3D2>For the mouse, the HP mouse that came with the device =
looks verry much like a logitech mouse with a black logitech icon. 2 =
exceptions: the labels differ and the logitech has a shorter cable. The =
same logitech with a colored icon on top does not work. The mouse must =
be a native ps/2 mouse, not one that can do serial-mousing =
too.</FONT></P>

<P><FONT SIZE=3D2>For the keyboard: try and see what you get. No =
experiences with alternates here. As with the mouse, the keyboard must =
be native ps/2 since it does not get any initialize command. An easy =
test here is that if the bootloader finds a keyboard, it wil use that =
keyboard and the video-card for bootconsole. If the keyboard is not =
found, the serial-port (9600-8-N) is used for console.</FONT></P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; In addition, HP-UX is on the hard drive but is =
locked down.&nbsp; I was</FONT>
<BR><FONT SIZE=3D2>&gt; thinking of buying an external CD drive and =
attempting to load debian</FONT>
<BR><FONT SIZE=3D2>&gt; 0.93.&nbsp; Can anyone recommend a place to buy =
the CD drive that they have</FONT>
</P>

<P><FONT SIZE=3D2>Any scsi cd-rom that can do a 2K blocksize will do =
for booting. After boot, there is no difference. HP-s are relabeled =
Toshiba's. </FONT></P>

<P><FONT SIZE=3D2>&gt; dealt with?&nbsp; I also have a network so I =
could attempt a </FONT>
<BR><FONT SIZE=3D2>&gt; network install</FONT>
<BR><FONT SIZE=3D2>&gt; but I am not sure what minimum requirements I'd =
need to </FONT>
<BR><FONT SIZE=3D2>&gt; fulfill for that.</FONT>
<BR><FONT SIZE=3D2>&gt;&nbsp; Is my approach the right one?</FONT>
</P>

<P><FONT SIZE=3D2>It's one right one, out of manny...</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>CBee</FONT>
</P>

</BODY>
</HTML>
------_=_NextPart_001_01C2649C.30D8B720--


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I have a 712 with the following peripherals:
- monitor from NCD
- mouse from IBM
- keyboard from Phillips
Works just fine.

----- Original Message -----
From: "Thibaut VARENE" <varenet@esiee.fr>
To: "Stephen J de Vries" <paulhill20@juno.com>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Wednesday, September 25, 2002 3:34 PM
Subject: Re: [parisc-linux] hardware newbie question...


> Stephen J de Vries wrote:
> > I have a HP 712 that I'd purchased recently.
> >
> > My question is:
> >
> > Can I use a PC monitor, keyboard, and mouse to boot the thing up?  If
so,
> > does the monitor have to be a multisync or something special?
> OK for the PC monitor. Use 'Tab' at boot time to switch 712's resolution
> NO for the PC keyboard (pc kbd is 75mA iirc, 712 is 500mA)
> I don't know for the mouse.
> >
> > In addition, HP-UX is on the hard drive but is locked down.  I was
> > thinking of buying an external CD drive and attempting to load debian
> > 0.93.  Can anyone recommend a place to buy the CD drive that they have
> > dealt with?  I also have a network so I could attempt a network install
> > but I am not sure what minimum requirements I'd need to fulfill for
that.
> You can unlock HP/UX pretty easily if the box isn't in secure mode.
> Just stop the boot sequence and at the BOOT_ADMIN prompt type 'bo pri ipl'
>
> Then answer 'y' to the 'interract with...' question, and then type (i
> don't know if we can say this here ;o)
>
> hpux -iS
>
> If the box is in secure mode there is a workaround:
> Open it, unplug the HD, boot it, wait for timeout, and then deactivate
> the secure mode ;)
> then reboot again.
>
>
> You can definitly use network to install.
> Check the palinux boot howto.
> I recommend you use the latest version (still under review, that's why
> it's not yet available on tldp):
> http://testpa.esiee.fr/.test/parisc-linux-boot.html
>
> You will find all useful info there.
>
>
> Thibaut VARENE
> PA/Linux ESIEE Team
> http://pateam.esiee.fr/
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>


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Hi all,

I got USB part of .config from debian-configs/32 (I work on a b180) and try
to compile 2.4.19-pa20 but it failled:

`gcc -print-libgcc-file-name` /usr/src/linux-2.4.19/arch/parisc/lib/lib.a
/usr/src/linux-2.4.19/lib/lib.a  \
        --end-group \
        -o vmlinux
drivers/usb/usbdrv.o: In function `hidinput_hid_event':
drivers/usb/usbdrv.o(.text.hidinput_hid_event+0x80): undefined reference
to `input_event'
drivers/usb/usbdrv.o(.text.hidinput_hid_event+0xb0): undefined reference
to `input_event'
drivers/usb/usbdrv.o: In function `.L951':
drivers/usb/usbdrv.o(.text.hidinput_hid_event+0xfc): undefined reference
to `input_event'
drivers/usb/usbdrv.o: In function `.L939':
drivers/usb/usbdrv.o(.text.hidinput_hid_event+0x13c): undefined reference
to `input_event'
drivers/usb/usbdrv.o: In function `.L959':
drivers/usb/usbdrv.o(.text.hidinput_hid_event+0x174): undefined reference
to `input_event'
drivers/usb/usbdrv.o(.text.hidinput_hid_event+0x1ac): more undefined references
to `input_event' follow
drivers/usb/usbdrv.o: In function `hidinput_connect':
drivers/usb/usbdrv.o(.text.hidinput_connect+0x16c): undefined reference to
`input_register_device'
drivers/usb/usbdrv.o: In function `hidinput_disconnect':
drivers/usb/usbdrv.o(.text.hidinput_disconnect+0x10): undefined reference
to `input_unregister_device'
make: *** [vmlinux] Error 1

Well, I do not need USB for this HW so I will remove for next try.

HTH,

Joel



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On Wed, Sep 25, 2002 at 05:56:08PM +0200, jsoe0708@tiscali.be wrote:
> I got USB part of .config from debian-configs/32 (I work on a b180) and try
> to compile 2.4.19-pa20 but it failled:

i'd guess you didn't select CONFIG_INPUT

-- 
Revolutions do not require corporate support.


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On Wednesday 25 September 2002 18:02, Matthew Wilcox wrote:
> On Wed, Sep 25, 2002 at 05:56:08PM +0200, jsoe0708@tiscali.be wrote:
> > I got USB part of .config from debian-configs/32 (I work on a b180) and
> > try to compile 2.4.19-pa20 but it failled:
>
> i'd guess you didn't select CONFIG_INPUT

CONFIG_INPUT=y
CONFIG_INPUT_EVDEV=y

helge




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From: Stephan <stephan@itp.bg>
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Subject: [parisc-linux] netacct-mysql compilation problem
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<P>hello, today I downloaded CVS of netacct-mysql, it perfect working na x86
linux, but not on Debian HPPA. It is good software for traffic accounting
written by another bulgarian, like me:)<BR>When I start this program, these
errors appears:</P>
<P>Sep 25 22:54:02 obzor kernel: do_page_fault() pid=25917 command='nacctd'
type=15 address=0x00000000<BR>Sep 25 22:54:02 obzor kernel: <BR>Sep 25
22:54:02 obzor kernel:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI<BR>Sep 25 22:54:02 obzor kernel: PSW:
00000000000001001111111100001111 Not tainted<BR>Sep 25 22:54:02 obzor
kernel: r00-03&nbsp; 00000000 0002a1d8 00018293 00000000<BR>Sep 25 22:54:02
obzor kernel: r04-07&nbsp; bff03f10 0002a9d8 0002a9d8 0002a9d8<BR>Sep 25
22:54:02 obzor kernel: r08-11&nbsp; 0002a9d8 0002a9d8 00018800
000d9e08<BR>Sep 25 22:54:02 obzor kernel: r12-15&nbsp; 00000000 000d8d28
000dd7c8 000e3ce8<BR>Sep 25 22:54:02 obzor kernel: r16-19&nbsp; 00000000
000d2470 0009e800 00000000<BR>Sep 25 22:54:02 obzor kernel: r20-23&nbsp;
00001000 400515e0 0002d6c0 0000208d<BR>Sep 25 22:54:02 obzor kernel:
r24-27&nbsp; 0000208d 00000000 00000000 0002a1d8<BR>Sep 25 22:54:02 obzor
kernel: r28-31&nbsp; bff03f10 00000020 bff04180 40252ff3<BR>Sep 25 22:54:02
obzor kernel: sr0-3&nbsp;&nbsp; 000024e0 000024e0 00000000 000024e0<BR>Sep
25 22:54:02 obzor kernel: sr4-7&nbsp;&nbsp; 000024e0 000024e0 000024e0
000024e0<BR>Sep 25 22:54:02 obzor kernel: <BR>Sep 25 22:54:02 obzor kernel:
IASQ: 000024e0 000024e0 IAOQ: 00017c83 00017c87<BR>Sep 25 22:54:02 obzor
kernel:&nbsp; IIR: 0e60109c&nbsp;&nbsp;&nbsp; ISR: 000024e0&nbsp; IOR:
00000000<BR>Sep 25 22:54:02 obzor kernel:&nbsp;
CPU:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp; CR30: 1c2c8000
CR31: f7feefca<BR>Sep 25 22:54:02 obzor kernel:&nbsp; ORIG_R28: bff03f10</P>
<P>where can be the problem, please help!</P>
<P>the source of netacct-mysql can be found
netacct-mysql.sourceforge.net</P>
<P>&nbsp;</P>
<P>&nbsp;</P>
<P>Regards</P><br>
<br>
________________________________________________<br>
This mail was sent by Godzilla 1.0<br>



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jsoe0708@tiscali.be wrote:
> Hi Brian,
> 
> Sorry, the last test I do on my b180 and gpmdata as mouse driver does not
> work :)
> (xfree86-4.1)
> 
Forgot what mouse type you're supposed to tell X you have. Just tried it 
on my i386, and had a hung mouse real fast! I thought it was Imps/2, but 
obviously not...

You are right -- if you return to the console with control-alt-F[1-6], 
and then back again, the issue clears up. It's a well-known but 
irritating "solution"



-- 
____               .:.                 ____
Bryan W. Headley - bwheadley@earthlink.net



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> <P>Sep 25 22:54:02 obzor kernel: do_page_fault() pid=25917 command='nacctd'
> type=15 address=0x00000000<BR>Sep 25 22:54:02 obzor kernel: <BR>Sep 25

Looks like a NULL pointer.

> IASQ: 000024e0 000024e0 IAOQ: 00017c83 00017c87<BR>Sep 25 22:54:02 obzor

The instruction causing the fault is at 0x00017c80.  This is probably
a coding problem in the source.  Some systems are more tolerant of
NULL pointers than others.  You would need to use a debugger to
investigate further.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi,

Are there drivers available for EISA 100 Base-T cards such are the HP
A4308A.
If there are what is the driver called and is there anything I need to know
in
getting it to work on my D370.

Thanks in advance,


Steve Grady
Sydney Australia

  



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Subject: Re: [parisc-linux] EISA 100 Base-T Ethernet card drivers
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On Thu, Sep 26, 2002 at 11:05:31AM +1000, Steve.Grady@csiro.au wrote:
> Are there drivers available for EISA 100 Base-T cards such are the HP
> A4308A.
> If there are what is the driver called and is there anything I need to know
> in
> getting it to work on my D370.

this chip is the 82556, which is apparently AKA the "EtherExpress PRO/100
Smart".  I don't know what's so smart about it, but the eepro100 driver
doesn't claim to support it.  I think you're out of luck.

-- 
Revolutions do not require corporate support.


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>> Hi Brian,
>> 
>> Sorry, the last test I do on my b180 and gpmdata as mouse driver does
not
>> work :)
>> (xfree86-4.1)
>> 
>Forgot what mouse type you're supposed to tell X you have. Just tried it
>
>on my i386, and had a hung mouse real fast! I thought it was Imps/2, but
>
>obviously not...
>
>You are right -- if you return to the console with control-alt-F[1-6], 
>and then back again, the issue clears up. It's a well-known but 
>irritating "solution"

Ah, I am not an 'e X pert' :)) and I am ignoring (thanks).

In the mean time, I recieved a mail from Branden Robinson <branden@debian.org>
proposing it is help. He will need some help with 'try an experimental debugging
X server package. Ever used gdb to attach to a running X server before?'.

If you feel more competent (I am not very capable in X field) and more time
(than I) I can send you its answer?

Cheers,
    Joel



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>-- Original Message --
>From: Helge Deller <deller@gmx.de>
>To: Matthew Wilcox <willy@debian.org>,
> jsoe0708@tiscali.be
>Subject: Re: [parisc-linux] Failure when compile 2.4.19-pa20
>Date: Wed, 25 Sep 2002 18:47:30 +0200
>Cc: parisc-linux@lists.parisc-linux.org
>
>
>On Wednesday 25 September 2002 18:02, Matthew Wilcox wrote:
>> On Wed, Sep 25, 2002 at 05:56:08PM +0200, jsoe0708@tiscali.be wrote:
>> > I got USB part of .config from debian-configs/32 (I work on a b180)
and
>> > try to compile 2.4.19-pa20 but it failled:
>>
>> i'd guess you didn't select CONFIG_INPUT
>
>CONFIG_INPUT=y
>CONFIG_INPUT_EVDEV=y
>
>helge
>

That is may mistake (just take out off context a part of the .config file
:( )

Thanks a lot for attention and help,
    Joel



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From: "James Smith" <james@compusmithllc.com>


> > >>>Galeon/Mozilla and XMMS start up, but they don't appear on screen and
give
> i've had both konqueror & xmms working fine on my 712/60

Yesterday I did a new Debian install on my 712/60, so it's the very same
system as on my 735/125. The difference is, as decribed before, on 735
galeon and xmms run, but they don't appear on screen. While on my 712 xmms
works and galeon showed a setup wizzard and died right after with an error
message. So I wonder, where this different behavior comes from?
Well, only difference is 24bpp X on 735 vs 8bpp on 712...

Greetings,
Yves...




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Hi all,

As I not find "std" emulation (gcc report 'Internal compiler error... PLease
submit a full bug report...) and not more the D, M, L mips prefix (to access
different 32bits part of a 64bits lon long), here is what I proprose as uaccess.h
patch.

Can someone have a look and advise me if I made any error?

Thanks in advance for help,
    Joel

PS: Functionaly it seems to work to make evms 1.1.0 works



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] EISA 100 Base-T Ethernet card drivers / 3COM
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Xref: news.gmane.org gmane.linux.ports.parisc:16305

On Thu, Sep 26, 2002 at 09:11:08PM +0200, Sven Cronbenberg wrote:
> I have two HP9000 maschines (735b and 720) standing
> around here with 3COM 100mbit eThernetcards. Have
> any people out there suceeded using those
> ethernetcards und LINUX in the HP9000/7??s?

i don't know.  it's worth trying them.

-- 
Revolutions do not require corporate support.


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From: Arto Jantunen <viiru@debian.org>
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Subject: [parisc-linux] SMP crash with 64-bit kernel and 32-bit PDC
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The kernel was built with additional PDC debuging and the options listed
in the subject. If someone needs the .config for something, I can send
it, too. Attached is the log of what happens. If anyone could use any
additional info, I can get it and mail it.

--
Arto Jantunen

--G4iJoqBmSsgzjUCe
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Firmware Version  38.39

Duplex Console IO Dependent Code (IODC) revision 0

------------------------------------------------------------------------------
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           Coprocessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------
      0       240 MHz   Active                 Functional            2 MB
      1       240 MHz   Idle                   Functional            2 MB

  Central Bus Speed (in MHz)  :        120 

  Model: R390/2

  Available memory (bytes)    : 1073733632 
  Good memory required (bytes):   86876160 

  Primary boot path:    8/4.1   (dec)   
  Alternate boot path:  8/4.6   (dec)   
  Console path:         8/16/4.0   (dec)   
  Keyboard path:        8/16/7.0   (dec)   

CPU 0
WARNING:  Memory has been initialized, but not tested as a result of
          FASTBOOT being enabled.  To test memory, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.


Processor is starting autoboot process.

To discontinue, press any key within 10 seconds.

10 seconds expired.
Proceeding...

Trying Primary Boot Path
------------------------

Booting... 
Boot IO Dependent Code (IODC) revision 152


HARD Booted.
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002

Partition Start(MB) End(MB) Id Type
1               1      16   f0 Palo
2              49    1002   82 swap
3            1003    4094   83 ext2
4              17      48   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 3687647 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=4/vmlinux'
Selected kernel: /vmlinux from partition 4
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 2412040 mediaptr 0x1000
Segment 1 load 0034e000 size 1520640 mediaptr 0x24e000
Segment 2 load 004c4000 size 49152 mediaptr 0x3c2000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.19-pa20 (root@elli) (gcc version 3.0) #4 SMP Thu Sep 26 17:04:45 EEST 2002
FP[0] enabled: Rev 0 Model 14
The 64-bit Kernel has started...
Initialized PDC Console for debugging.
Kernel is using PDC in 32-bit mode.
Determining PDC firmware type: System Map.
model 00005ba0 00000491 00000000 00000002 7777173a 100000f0 00000008 000000b2 000000b2
vers  00000501
CPUID vers 14 rev 23 (0x000001d7)
capabilities 0x3
model 9000/800/R390
Total Memory: 1024 Mb
pagetable_init
On node 0 totalpages: 262144
zone(0): 262144 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=4/vmlinux
Console: colour dummy device 160x64
Initialized PDC Console for debugging.
Calibrating delay loop... 478.41 BogoMIPS
Memory: 1019632k available
Dentry cache hash table entries: 131072 (order: 9, 2097152 bytes)
Inode cache hash table entries: 65536 (order: 8, 1048576 bytes)
Mount-cache hash table entries: 16384 (order: 6, 262144 bytes)
Buffer-cache hash table entries: 65536 (order: 7, 524288 bytes)
Page-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfffffffffff88000 [8], versions 0x580, 0xf, 0xb
2. Bluefish Add-on FW-SCSI (4) at 0xfffffffff1004000 [8/4], versions 0x13, 0x1, 0x89
3. HP HSC-PCI Cards (4) at 0xfffffffff1008000 [8/8], versions 0x4, 0x0, 0x9d
4. UL 550 Lasi Core BA (11) at 0xffffffffffd00000 [8/16], versions 0x2f, 0x0, 0x81,  additional addresses: 0xffffffffffd0c000 0xffffffffffc00000 
5. UL 550 Core Centronics (10) at 0xffffffffffd02000 [8/16/0], versions 0x2f, 0x0, 0x74,  additional addresses: 0xffffffffffd01000 0xffffffffffd03000 
6. UL 550 Lasi Core RS-232 (10) at 0xffffffffffd05000 [8/16/4], versions 0x2f, 0x0, 0x8c
7. UL 550 Core SCSI (10) at 0xffffffffffd06000 [8/16/5], versions 0x2f, 0x0, 0x82
8. UL 350 Core LAN (802.3) (10) at 0xffffffffffd07000 [8/16/6], versions 0x2f, 0x0, 0x8a
9. UL 550 Core PS/2 Port (10) at 0xffffffffffd08000 [8/16/7], versions 0x2f, 0x0, 0x84
10. UL 550 Core PS/2 Port (10) at 0xffffffffffd08100 [8/16/8], versions 0x2f, 0x0, 0x84
11. UL 550 Core Wax BA (11) at 0xffffffffffe00000 [8/20], versions 0x31, 0x0, 0x8e
12. UL 550 Wax Core RS-232 (10) at 0xffffffffffe02000 [8/20/2], versions 0x31, 0x0, 0x8c
13. UL 550 Wax EISA BA (11) at 0xfffffffffc000000 [8/20/5], versions 0x31, 0x0, 0x90,  additional addresses: 0xffffffffffc88000 
14. U2-IOA BC GSC+ Port (7) at 0xfffffffff103f000 [8/63], versions 0x501, 0x1, 0xc
15. U2-IOA BC Runway Port (12) at 0xfffffffffff8a000 [10], versions 0x580, 0xf, 0xb
16. Bluefish Add-on FW-SCSI (4) at 0xfffffffff180c000 [10/12], versions 0x13, 0x1, 0x89
17. U2-IOA BC GSC+ Port (7) at 0xfffffffff183f000 [10/63], versions 0x501, 0x1, 0xc
18. UL 2w U+/240 (350/550) (0) at 0xfffffffffffa0000 [32], versions 0x5ba, 0x0, 0x4
19. UL 2w U+/240 (350/550) (0) at 0xfffffffffffa2000 [34], versions 0x5ba, 0x0, 0x4
20. Memory (1) at 0xfffffffffffb1000 [49], versions 0x7e, 0x0, 0x9
CPU(s): 2 x PA8200 (PCX-U+) at 240.000000 MHz
Found U2 at 0xfffffffffff88000
Found U2 at 0xfffffffffff8a000
ccio-dma.c: failed to claim CCIO bus address space (ffffffff00000000,ffffffffffffffff)
Lasi version 0 at 0xffffffffffd00000 found.
LED display at ffffffffffd0c000 registered
Wax at 0xffffffffffe00000 found.
Wax EISA Adapter found at 0xfffffffffc000000
EISA EEPROM at 0xffffffffffc88000
Enumerating EISA bus

--G4iJoqBmSsgzjUCe--


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From: Harri Haataja <harri.haataja@cs.helsinki.fi>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] EISA 100 Base-T Ethernet card drivers / 3COM
Date: Fri, 27 Sep 2002 11:42:27 +0300
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On Thu, Sep 26, 2002 at 08:12:38PM +0100, Matthew Wilcox wrote:
> On Thu, Sep 26, 2002 at 09:11:08PM +0200, Sven Cronbenberg wrote:
> > I have two HP9000 maschines (735b and 720) standing
> > around here with 3COM 100mbit eThernetcards. Have
> > any people out there suceeded using those
> > ethernetcards und LINUX in the HP9000/7??s?
> i don't know.  it's worth trying them.

Wouldn't it be worth it putting together a small list (or even an active
web page) of working devices of any kind on HP-PA hardware?
Or maybe just limited to (E)ISA and pci cards or such?

-- 
   http://www.math.fu-berlin.de/~guckes/sig/



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Subject: RE: [parisc-linux] EISA 100 Base-T Ethernet card drivers / 3COM
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> -----Original Message-----
> From: Harri Haataja [mailto:harri.haataja@cs.helsinki.fi]
> 
> On Thu, Sep 26, 2002 at 08:12:38PM +0100, Matthew Wilcox wrote:
> > On Thu, Sep 26, 2002 at 09:11:08PM +0200, Sven Cronbenberg wrote:
> > > I have two HP9000 maschines (735b and 720) standing
> > > around here with 3COM 100mbit eThernetcards. Have
> > > any people out there suceeded using those
> > > ethernetcards und LINUX in the HP9000/7??s?
> > i don't know.  it's worth trying them.
> 
> Wouldn't it be worth it putting together a small list (or 
> even an active
> web page) of working devices of any kind on HP-PA hardware?
> Or maybe just limited to (E)ISA and pci cards or such?

Best place would be the already available hardware database...
Is there already a hook to that?

Or on the other hand, does HP have such a list for devices in hp-ux? I guess
that devices that work on i386 architectures in linux and on pa-risc
architectures in HP-UX (hence hardware does not bite and driver sources are
available) should be usable.


CBee



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charset=3Diso-8859-1">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2654.45">
<TITLE>RE: [parisc-linux] EISA 100 Base-T Ethernet card drivers / =
3COM</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: Harri Haataja [<A =
HREF=3D"mailto:harri.haataja@cs.helsinki.fi">mailto:harri.haataja@cs.hel=
sinki.fi</A>]</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; On Thu, Sep 26, 2002 at 08:12:38PM +0100, =
Matthew Wilcox wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; On Thu, Sep 26, 2002 at 09:11:08PM +0200, =
Sven Cronbenberg wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; I have two HP9000 maschines (735b and =
720) standing</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; around here with 3COM 100mbit =
eThernetcards. Have</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; any people out there suceeded using =
those</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; ethernetcards und LINUX in the =
HP9000/7??s?</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; i don't know.&nbsp; it's worth trying =
them.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Wouldn't it be worth it putting together a =
small list (or </FONT>
<BR><FONT SIZE=3D2>&gt; even an active</FONT>
<BR><FONT SIZE=3D2>&gt; web page) of working devices of any kind on =
HP-PA hardware?</FONT>
<BR><FONT SIZE=3D2>&gt; Or maybe just limited to (E)ISA and pci cards =
or such?</FONT>
</P>

<P><FONT SIZE=3D2>Best place would be the already available hardware =
database...</FONT>
<BR><FONT SIZE=3D2>Is there already a hook to that?</FONT>
</P>

<P><FONT SIZE=3D2>Or on the other hand, does HP have such a list for =
devices in hp-ux? I guess that devices that work on i386 architectures =
in linux and on pa-risc architectures in HP-UX (hence hardware does not =
bite and driver sources are available) should be usable.</FONT></P>
<BR>

<P><FONT SIZE=3D2>CBee</FONT>
</P>
<BR>

</BODY>
</HTML>
------_=_NextPart_001_01C2661A.6DF0DDC0--


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Subject: Re: [parisc-linux] EISA 100 Base-T Ethernet card drivers / 3COM
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On Fri, Sep 27, 2002 at 01:38:41PM +0200, "Beerse, Corn" wrote:
> > From: Harri Haataja [mailto:harri.haataja@cs.helsinki.fi]
> > On Thu, Sep 26, 2002 at 08:12:38PM +0100, Matthew Wilcox wrote:
> > > On Thu, Sep 26, 2002 at 09:11:08PM +0200, Sven Cronbenberg wrote:
> > > > I have two HP9000 maschines (735b and 720) standing
> > > > around here with 3COM 100mbit eThernetcards. Have
> > > > any people out there suceeded using those
> > > > ethernetcards und LINUX in the HP9000/7??s?
> > > i don't know.  it's worth trying them.
> > Wouldn't it be worth it putting together a small list (or even an
> > active web page) of working devices of any kind on HP-PA hardware?
> > Or maybe just limited to (E)ISA and pci cards or such?
> Best place would be the already available hardware database...
> Is there already a hook to that?
> 
> Or on the other hand, does HP have such a list for devices in hp-ux? I
> guess that devices that work on i386 architectures in linux and on
> pa-risc architectures in HP-UX (hence hardware does not bite and
> driver sources are available) should be usable.

I have heard only random rumours and one thingj driving me to Linux is
that HP-UX doesn't support really any cards that might be available to
me. What I'd like to see is a list of "reported working" cards and
drivers. That would ofcourse be nice on other architectures as well.

-- 
Cat said, "I am not a friend, and I am not a Servant, I am the Cat who
walks by himself, and I wish to come into your cave."
	-- Rudyard Kipling



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Subject: [parisc-linux] MM gurus help request
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Hi all,

To manage put_user(x, ptr) with x a 64bits (long long), I found another way
to access the address of x and suggest following solution.

--- uaccess.h.orig	2002-09-25 13:59:09.000000000 +0200
+++ uaccess.h	2002-09-27 16:57:06.000000000 +0200
@@ -35,10 +35,13 @@
 #define get_user __get_user
 
 #if BITS_PER_LONG == 32
+
 #define LDD_KERNEL(ptr)		BUG()
 #define LDD_USER(ptr)		BUG()
-#define STD_KERNEL(x, ptr)	BUG()
-#define STD_USER(x, ptr)	BUG()
+#define STD_KERNEL(x, ptr)	__put_kernel_asm_64(x, ptr)
+
+#define STD_USER(x, ptr)	__put_user_asm_64(x, ptr)
+
 #else
 #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
 #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
@@ -137,6 +140,7 @@
 #define __put_user(x,ptr)                                       \
 ({								\
 	register long __pu_err __asm__ ("r8") = 0;		\
+	register long long * __tmp = 0;		\
 								\
 	if (segment_eq(get_fs(),KERNEL_DS)) {                   \
 	    switch (sizeof(*(ptr))) {                           \
@@ -200,6 +204,22 @@
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
 
+#define __put_kernel_asm_64(x, ptr)                    \
+        __asm__ __volatile__ (                              \
+                "\n\tldw\t0(%2),%3\n"           \
+                "1:\tstw\t%3,0(%1)\n"                     \
+                "\tldw\t4(%2),%3\n"             \
+                "2:\tstw\t%3,4(%1)\n"                       \
+                "3:\n"                                      \
+                "\t.section __ex_table,\"a\"\n"             \
+                 "\t.word\t1b\n"                            \
+                 "\t.word\t(3b-1b)+1\n"                     \
+                 "\t.word\t2b\n"                            \
+                 "\t.word\t(3b-2b)+1\n"                     \
+                 "\t.previous"                              \
+                : "=r"(__pu_err)                            \
+                : "r"(ptr), "r"(&x), "r"(__tmp),  "0"(__pu_err))
+
 #define __put_user_asm(stx,x,ptr)                           \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
@@ -210,6 +230,23 @@
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
+
+#define __put_user_asm_64(x, ptr)                      \
+        __asm__ __volatile__ (                              \
+                "\n\tldw\t0(%%sr3,%2),%3\n"           \
+                "1:\tstw\t%3,0(%%sr3,%1)\n"               \
+                "\tldw\t4(%%sr3,%2),%3\n"             \
+                "2:\tstw\t%3,4(%%sr3,%1)\n"                 \
+                "3:\n"                                      \
+                "\t.section __ex_table,\"a\"\n"             \
+                 "\t.word\t1b\n"                            \
+                 "\t.word\t(3b-1b)+1\n"                     \
+                 "\t.word\t2b\n"                            \
+                 "\t.word\t(3b-2b)+1\n"                     \
+                 "\t.previous"                              \
+                : "=r"(__pu_err)                            \
+                : "r"(ptr), "r"(&x), "r"(__tmp),  "0"(__pu_err))
+
 #endif

Could a mm gurus help me to check if I do not break memory management?

Thanks in advance for additional help,
    Joel



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Sorry it is bad :(
>
>Hi all,
>
>To manage put_user(x, ptr) with x a 64bits (long long), I found another
way
>to access the address of x and suggest following solution.
>
>--- uaccess.h.orig	2002-09-25 13:59:09.000000000 +0200
>+++ uaccess.h	2002-09-27 16:57:06.000000000 +0200
>@@ -35,10 +35,13 @@
> #define get_user __get_user
> 
> #if BITS_PER_LONG == 32
>+
> #define LDD_KERNEL(ptr)		BUG()
> #define LDD_USER(ptr)		BUG()
>-#define STD_KERNEL(x, ptr)	BUG()
>-#define STD_USER(x, ptr)	BUG()
>+#define STD_KERNEL(x, ptr)	__put_kernel_asm_64(x, ptr)
>+
>+#define STD_USER(x, ptr)	__put_user_asm_64(x, ptr)
>+
> #else
> #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
> #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
>@@ -137,6 +140,7 @@
> #define __put_user(x,ptr)                                       \
> ({								\
> 	register long __pu_err __asm__ ("r8") = 0;		\
>+	register long long * __tmp = 0;		\
> 								\
> 	if (segment_eq(get_fs(),KERNEL_DS)) {                   \
> 	    switch (sizeof(*(ptr))) {                           \
>@@ -200,6 +204,22 @@
> 		: "=r"(__pu_err)                            \
> 		: "r"(ptr), "r"(x), "0"(__pu_err))
> 
>+#define __put_kernel_asm_64(x, ptr)                    \
>+        __asm__ __volatile__ (                              \
>+                "\n\tldw\t0(%2),%3\n"           \
>+                "1:\tstw\t%3,0(%1)\n"                     \
>+                "\tldw\t4(%2),%3\n"             \
>+                "2:\tstw\t%3,4(%1)\n"                       \
>+                "3:\n"                                      \
>+                "\t.section __ex_table,\"a\"\n"             \
>+                 "\t.word\t1b\n"                            \
>+                 "\t.word\t(3b-1b)+1\n"                     \
>+                 "\t.word\t2b\n"                            \
>+                 "\t.word\t(3b-2b)+1\n"                     \
>+                 "\t.previous"                              \
>+                : "=r"(__pu_err)                            \
>+                : "r"(ptr), "r"(&x), "r"(__tmp),  "0"(__pu_err))
>+
> #define __put_user_asm(stx,x,ptr)                           \
> 	__asm__ __volatile__ (                              \
> 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
>@@ -210,6 +230,23 @@
> 		 "\t.previous"                              \
> 		: "=r"(__pu_err)                            \
> 		: "r"(ptr), "r"(x), "0"(__pu_err))
>+
>+#define __put_user_asm_64(x, ptr)                      \
>+        __asm__ __volatile__ (                              \
>+                "\n\tldw\t0(%%sr3,%2),%3\n"           \
>+                "1:\tstw\t%3,0(%%sr3,%1)\n"               \
>+                "\tldw\t4(%%sr3,%2),%3\n"             \
>+                "2:\tstw\t%3,4(%%sr3,%1)\n"                 \
>+                "3:\n"                                      \
>+                "\t.section __ex_table,\"a\"\n"             \
>+                 "\t.word\t1b\n"                            \
>+                 "\t.word\t(3b-1b)+1\n"                     \
>+                 "\t.word\t2b\n"                            \
>+                 "\t.word\t(3b-2b)+1\n"                     \
>+                 "\t.previous"                              \
>+                : "=r"(__pu_err)                            \
>+                : "r"(ptr), "r"(&x), "r"(__tmp),  "0"(__pu_err))
>+
> #endif
>
(&x) works when it is a variable not with a symbolic constant as 0.

Sorry,
    Joel



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Subject: [parisc-linux] LASI ETHERNET
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<P>eth0: link ok.<BR>eth0: i596 interrupt, exit timeout, status a040, cmd
a100.<BR>eth0: i596 interrupt, timeout, status e040, cmd a100.<BR>eth0: i596
interrupt, timeout, status e040, cmd a100.<BR>eth0: i596 interrupt, exit
timeout, status e040, cmd e100.<BR>eth0: i596 interrupt, exit timeout,
status 4040, cmd 4000.<BR>eth0: i596_add_cmd timed out, status 4040, cmd
4000.<BR>eth0: i596 interrupt, timeout, status 4040, cmd 0100.<BR>eth0: i596
interrupt, timeout, status 4040, cmd 0100.<BR>eth0: i596 interrupt, exit
timeout, status 4040, cmd 4000.<BR>eth0: command unit timed out, status
resetting.<BR>eth0: link ok.</P>
<P>&nbsp;</P>
<P>&nbsp;</P>
<P>Why is this error appeared?</P>
<P>Today when this error appeared, my LAN connection was broken</P>
<P>after ifdown and ifup</P>
<P>all is OK, I tried another UTP cable. I am using HP Switch 10/100</P>
<P>&nbsp;</P><br>
<br>
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On Fri, Sep 27, 2002 at 07:55:39PM +0200, Stephan wrote:

... absolutely nothing.

want to try again, this time without the html?

-- 
Revolutions do not require corporate support.


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From: "Jon Sharp" <jonsharp@fastmail.ca>
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Subject: Re: [parisc-linux] Modem communication, HP 730
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> I know the internal modem of the K-class is limited to 19200.  All
> of the support modems we install for the systems are slowed down
> to 19200 even though they are 56k.  Coincidence?
> 
> derek
> 
> 
> --- Grant Grundler <grundler@dsl2.external.hp.com> wrote:
>> "Jon Sharp" wrote:
>>> It works fine (using minicom) at connection
>>> speeds of up to 19200, after that the modem fails to respond to
>>> AT commands altogether.
>> 
>> Does anyone know at which speeds HW handshaking is necessary?
>> 730 is a pretty old machine.
>> 
>> grant

Interestingly according to a guy in an hp newsgroup it is possible 
under HP-UX, which has left me even more confused.

Thanks,

Jon
_________________________________________________________________
    http://fastmail.ca/ - Fast Secure Web Email for Canadians
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eth0: link ok.
eth0: i596 interrupt, exit timeout, status a040, cmd a100.
eth0: i596 interrupt, timeout, status e040, cmd a100.
eth0: i596 interrupt, timeout, status e040, cmd a100.
eth0: i596 interrupt, exit timeout, status e040, cmd e100.
eth0: i596 interrupt, exit timeout, status 4040, cmd 4000.
eth0: i596_add_cmd timed out, status 4040, cmd 4000.
eth0: i596 interrupt, timeout, status 4040, cmd 0100.
eth0: i596 interrupt, timeout, status 4040, cmd 0100.
eth0: i596 interrupt, exit timeout, status 4040, cmd 4000.
eth0: command unit timed out, status resetting.
eth0: link ok.



Why is this error appeared?

Today when this error appeared, my LAN connection was broken

after ifdown and ifup

all is OK, I tried another UTP cable. I am using HP Switch 10/100


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untested, prebuilt pre1v2 debs here:
http://gsyprf11.external.hp.com/hppa/xfree86_4.2.1-0pre1v2/

these built with no extra patches. nice :^).

grant


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I got a  9000/715 100 that I have Debian 3.0 everything works except for 
X.  What do I have to do to make X work?

James






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Hi James,

Just start to have a look at ml:

http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017688.html

You could also have a look earlier in this ml, there are other advises 
concerning X and 715 (HIL mouse?).

Good luck,
	Joel


James Haydon wrote:
> I got a  9000/715 100 that I have Debian 3.0 everything works except for 
> X.  What do I have to do to make X work?
> 
> James
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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Subject: [parisc-linux] How to obtain a core dump
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Hi all,

Testing evms 1.1.0, I got a segfault with evmsgui on hppa but I do not 
obtain any core dump to analyse by back trace in gdb the origine of this 
  problem (the ncurses tool do present this default).

Is someonr can explain me what should I do to obtain a core dump when 
this kind of problem occurs?

Thanks in advance,
	Joel



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Subject: Re: [parisc-linux] How to obtain a core dump
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> Is someonr can explain me what should I do to obtain a core dump when 
> this kind of problem occurs?

Type "ulimit -a" to see your current limit settings.  The core size
limit can be changed with "ulimit -c".  Your current core size limit
is probably too small.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] FWD: Bug#162690: [parisc]gcc 3.x produces openssl test code that SEGVs with -march=2.0  and optimization >0
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perhaps someone here can look at this?

randolph

----- Forwarded message from Kevin Carson <kevincarson@shaw.ca> -----

Subject: Bug#162690: [parisc]gcc 3.x produces openssl test code that SEGVs with -march=2.0  and optimization >0
Reply-To: Kevin Carson <kevincarson@shaw.ca>, 162690@bugs.debian.org
Date: Sat, 28 Sep 2002 10:21:01 -0700
From: Kevin Carson <kevincarson@shaw.ca>
To: submit@bugs.debian.org
X-Mailing-List: <debian-gcc@lists.debian.org> archive/latest/3552

Package: gcc

Running Debian unstable on PA-RISC platform  (C160 Workstation with 160MHz
PA-8000 CPU)

Compiling openssl 0.9.6g with any level of optimization for PA1.1 produces
code that passes all tests ("make test") and benchmarks ("openssl speed")
successfully.  Using -march=2.0 flag produces code that only runs
successfully at optimization level "-O0"  Any higher optimization fails some
of the test suite (reliably in test/exptest.c for instance).

I've observed this problem with gcc 3.0.4-8 and gcc-3.2.1-0pre2

libc6 2.2.5-14.3

"linux-parisc" configuration string in openssl Configure script for
successful run is
"gcc-3.2:-DB_ENDIAN -DNO_ASM -DTERMIO -O0 -march=2.0 -Wall::::::"

"linux-parisc" configuration string in openssl Configure script for failed
run is "gcc-3.2:-DB_ENDIAN -DNO_ASM -DTERMIO -O1 -march=2.0 -Wall::::::"

Run test by:

cd openssl-0.9.6g
<edit Configure to contain string above in single line>

make clean
./Configure linux-parisc
make test

if optimization is >0 run will fail with segmentation violation in exptest
(tests various operations on the big number library)

Kevin



-- 
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Subject: Re: [parisc-linux] uaccess.h patch for new evms-1.1.0: correct?
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Hi all,

Is somebody have some sample test program to stress this patch (so that 
I can consumme all available vm) to verify that it reports well the 
erronious memory access?

Thanks in advance,
	Joel


jsoe0708@tiscali.be wrote:
> Hi all,
> 
> As I not find "std" emulation (gcc report 'Internal compiler error... PLease
> submit a full bug report...) and not more the D, M, L mips prefix (to access
> different 32bits part of a 64bits lon long), here is what I proprose as uaccess.h
> patch.
> 
> Can someone have a look and advise me if I made any error?
> 
> Thanks in advance for help,
>     Joel
> 
> PS: Functionaly it seems to work to make evms 1.1.0 works
> 
> 



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Subject: Re: [parisc-linux] FWD: Bug#162690: [parisc]gcc 3.x produces openssl test code that SEGVs with -march=2.0  and optimization >0
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> Package: gcc
> 
> Running Debian unstable on PA-RISC platform  (C160 Workstation with 160MHz
> PA-8000 CPU)
> 
> Compiling openssl 0.9.6g with any level of optimization for PA1.1 produces
> code that passes all tests ("make test") and benchmarks ("openssl speed")
> successfully.  Using -march=2.0 flag produces code that only runs
> successfully at optimization level "-O0"  Any higher optimization fails some
> of the test suite (reliably in test/exptest.c for instance).

There is a known issue with the assembler and linker with PA-RISC 2.0 code.
The relocations generated for floating-point loads and stores are wrong
in some cases.  Until this problem is fixed, I don't recommend using
-march=2.0.  This is part of the reason the default architecture is
still PA-RISC 1.1.  I don't think you can build gcc with -march=2.0
either.  There isn't a huge benefit in PA-RISC 2.0 in 32-bit mode.

I believe that this is not a problem with the 64-bit assembler and
linker.  However, there isn't a 64-bit userspace yet :(

If you think that you can contribute to resolving these issues, then
I encourage you to investigate further and determine what causes
the seg faults.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Harri Haataja wrote:
> Wouldn't it be worth it putting together a small list (or even an active
> web page) of working devices of any kind on HP-PA hardware?
> Or maybe just limited to (E)ISA and pci cards or such?

ESIEE folks maintain a page for systems:
	http://pateam.esiee.fr/list.html

Please model after that example and send it to them.
They might add it to that page. I don't know if they want to maintain
something like that and I think they have enough to do already.
A problem with maintaining this is even if a PCI card works on B180
doesn't mean it will work on C3000 or A500.

In general, I expect hppa-linux to support the same cards as sparc64/
mips64/powerpc/alpha ports.  I would include "ia64" but itanic IO and
HP ZX1 IO are like comparing x86 IO and parisc IO subsystems (HW).

grant


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Hello,
i just compiled kernel with serial mux support
how I can use it?
how to create ttyB*?
REgards

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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] Serial MUX
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Hello,

this driver is under development !
This driver can be used on machines having a non-supported
multi-serial interface like a E35/45/55 or some K-series
machines. 

The first and already tested driver is the PDC console
driver, to use only port-0 of the multi serial board
as console. Now an alternative native MUX driver 
is under development, but this driver can currently 
ONLY access port-0 (first port). The multi-line support
is not coded yet, and some short tests by me show
problems (machine hangs up !).

So you cannot access the multiple serial ports, so sorry.

Christoph P.


Stephan wrote:
> 
> Hello,
> i just compiled kernel with serial mux support
> how I can use it?
> how to create ttyB*?
> REgards
> 
> ________________________________________________
> This mail was sent by Godzilla 1.0
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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Joel,

It turns some bad settings put in the XF86Config-4 by me dealing number
of colors and vertical and horizonal sync and some stuff dealing with
probing a monitor put in by Debian.

The correct number of colors is 8 for this 715.

Thanks

James

On Sat, 2002-09-28 at 11:49, Joel Soete wrote:
> Hi James,
> 
> Just start to have a look at ml:
> 
> http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017688.html
> 
> You could also have a look earlier in this ml, there are other advises 
> concerning X and 715 (HIL mouse?).
> 
> Good luck,
> 	Joel
> 
> 
> James Haydon wrote:
> > I got a  9000/715 100 that I have Debian 3.0 everything works except for 
> > X.  What do I have to do to make X work?
> > 
> > James
> > 
> > 
> > 
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> 
> 




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Hi,

The FAQ
	7. How can I check if the PDC (firmware) revision is the latest ?
at
	http://www.parisc-linux.org/faq/index.html
says nothing about updating the firmware using BOOTP.
I think it should be put there since it works great and is very easy to
do. I just upgraded a 712 from 2.1 to 2.3 using BOOTP.
The text file included with the firmware patch only talks about using a
tape for updating...uch. Please can someone update that FAQ nr. 7?
Yes, I'm a newbie on PA-RISC, but it should not take _me_ that long... I
have to find everything myself...

OK, lifimage already boots, next is my root NFS ... terrible... :)

Frank.



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On Sun, Sep 29, 2002 at 11:17:22PM +0200, Frank Cornelis wrote:
> The FAQ
> 	7. How can I check if the PDC (firmware) revision is the latest ?
> at
> 	http://www.parisc-linux.org/faq/index.html
> says nothing about updating the firmware using BOOTP.
> I think it should be put there since it works great and is very easy to
> do. I just upgraded a 712 from 2.1 to 2.3 using BOOTP.

want to post a patch?

-- 
Revolutions do not require corporate support.


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Subject: [parisc-linux] Want a Big Penis?
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X-Loop-Prevention: 1
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I need the client Oracle 8.1.6 for Debian pa-risc.

            Claudio Pischel
    Subgerente de Informatica
cpischel@catastro.rionegro.gov.ar
  Direccin General de Catastro
       e Informacin Territorial
              RIO NEGRO





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On Mon, Sep 30, 2002 at 09:28:44AM -0300, Claudio Pischel (Direcci?n General de Catastro - RN) wrote:

> I need the client Oracle 8.1.6 for Debian pa-risc.

Try asking Oracle for it.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
Getting Jolt out of their under-floor cache 



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Well dudes, it's not the size of the boat that matters, it's the motion 
in the ocean !  ;o))


More seriously, isn't it possible to avoid such spam ?
It's becomming more and more regular...


-- 
Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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SpamAssassin w/ DCC + Razor is easy to set up and does a pretty good job
getting rid of most of the spam I get on a daily basis.=20

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216


> -----Original Message-----
> From: Thibaut VARENE [mailto:varenet@esiee.fr]=20
> Sent: Monday, September 30, 2002 7:54 AM
> To: parisc-linux@parisc-linux.org
> Subject: Re: [parisc-linux] Want a Big Penis?
>=20
>=20
>=20
> Well dudes, it's not the size of the boat that matters, it's=20
> the motion=20
> in the ocean !  ;o))
>=20
>=20
> More seriously, isn't it possible to avoid such spam ?
> It's becomming more and more regular...
>=20
>=20
> --=20
> Thibaut VARENE
> PA/Linux ESIEE Team
> http://pateam.esiee.fr/
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>=20


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most of my 712's are ver 1.9 or 2.1 & they all work fine as far as i can
see with linux - is there any advantage to updating to 2.3 ?

or is this a case of 'if its not broken....'

James S


> The FAQ
> 	7. How can I check if the PDC (firmware) revision is the latest ?
> at
> 	http://www.parisc-linux.org/faq/index.html
> says nothing about updating the firmware using BOOTP.
> I think it should be put there since it works great and is very easy to
> do. I just upgraded a 712 from 2.1 to 2.3 using BOOTP.




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This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.

------_=_NextPart_001_01C26892.7D7308C0
Content-Type: text/plain;
	charset="iso-8859-1"

> -----Original Message-----
> From: Christoph Plattner [mailto:christoph.plattner@gmx.at]
> 
> this driver is under development !
> This driver can be used on machines having a non-supported
> multi-serial interface like a E35/45/55 or some K-series
> machines. 

Does this indicate someone is trying to make linux on a E45 usefull? I've
one next to my desk (terrible noise from the disks or fan).

Unfortunately I cannot help developping, but I can do some testing.

> 
> The first and already tested driver is the PDC console
> driver, to use only port-0 of the multi serial board
> as console. Now an alternative native MUX driver 
> is under development, but this driver can currently 
> ONLY access port-0 (first port). The multi-line support
> is not coded yet, and some short tests by me show
> problems (machine hangs up !).
> 
> So you cannot access the multiple serial ports, so sorry.
> 
I only need it for console.


CBee

------_=_NextPart_001_01C26892.7D7308C0
Content-Type: text/html;
	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Diso-8859-1">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2654.45">
<TITLE>RE: [parisc-linux] Serial MUX</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: Christoph Plattner [<A =
HREF=3D"mailto:christoph.plattner@gmx.at">mailto:christoph.plattner@gmx.=
at</A>]</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; this driver is under development !</FONT>
<BR><FONT SIZE=3D2>&gt; This driver can be used on machines having a =
non-supported</FONT>
<BR><FONT SIZE=3D2>&gt; multi-serial interface like a E35/45/55 or some =
K-series</FONT>
<BR><FONT SIZE=3D2>&gt; machines. </FONT>
</P>

<P><FONT SIZE=3D2>Does this indicate someone is trying to make linux on =
a E45 usefull? I've one next to my desk (terrible noise from the disks =
or fan).</FONT></P>

<P><FONT SIZE=3D2>Unfortunately I cannot help developping, but I can do =
some testing.</FONT>
</P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; The first and already tested driver is the PDC =
console</FONT>
<BR><FONT SIZE=3D2>&gt; driver, to use only port-0 of the multi serial =
board</FONT>
<BR><FONT SIZE=3D2>&gt; as console. Now an alternative native MUX =
driver </FONT>
<BR><FONT SIZE=3D2>&gt; is under development, but this driver can =
currently </FONT>
<BR><FONT SIZE=3D2>&gt; ONLY access port-0 (first port). The multi-line =
support</FONT>
<BR><FONT SIZE=3D2>&gt; is not coded yet, and some short tests by me =
show</FONT>
<BR><FONT SIZE=3D2>&gt; problems (machine hangs up !).</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; So you cannot access the multiple serial ports, =
so sorry.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>I only need it for console.</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>CBee</FONT>
</P>

</BODY>
</HTML>
------_=_NextPart_001_01C26892.7D7308C0--


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From: Christoph Plattner [mailto:christoph.plattner@gmx.at]
> This driver can be used on machines having a non-supported
> multi-serial interface like a E35/45/55 or some K-series
> machines. 

slight misunderstanding: this driver supports almost all the
non-16550-compatible serial ports used on HP machines.  That includes E,
F-I, K-class and the optional console card used with some D & R class
machines.  It doesn't include "Burgundy", "Silverfox" or "Lego" console
devices.  I'm working on updating the hwdb to reflect this.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] Serial MUX
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Hello,

yes, I want to have E55 (and familiy) supported fully,
and I try to help in development (so far it is possible,
it is hard to get access to HP documentation).

To use the E55 (or family) as a diskless server, it works
(so you can reduce noise at the meantime, the disks cannot
be accessed in Linux - yet !).

For such a diskless operation, you need
	- serial console
	- ethernet
	- core system
All three things are running under Linux.
Again, you can use the PDC CONSOLE driver OR the MUX driver.
Both are accessed via ttyB0 at the moment.

Christoph



> "Beerse, Corn" wrote:
> 
> > -----Original Message-----
> > From: Christoph Plattner [mailto:christoph.plattner@gmx.at]
> >
> > this driver is under development !
> > This driver can be used on machines having a non-supported
> > multi-serial interface like a E35/45/55 or some K-series
> > machines.
> 
> Does this indicate someone is trying to make linux on a E45 usefull?
> I've one next to my desk (terrible noise from the disks or fan).
> 
> Unfortunately I cannot help developping, but I can do some testing.
> 
> >
> > The first and already tested driver is the PDC console
> > driver, to use only port-0 of the multi serial board
> > as console. Now an alternative native MUX driver
> > is under development, but this driver can currently
> > ONLY access port-0 (first port). The multi-line support
> > is not coded yet, and some short tests by me show
> > problems (machine hangs up !).
> >
> > So you cannot access the multiple serial ports, so sorry.
> >
> I only need it for console.
> 
> CBee

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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Oh sorry, that's beautiful, that there are so much
machines with the same device type. My knowledge was
here not complete. I only knew the state of the E55 
(family) and of this one K-class machine, Ryan has.

Christoph



Matthew Wilcox wrote:
> 
> From: Christoph Plattner [mailto:christoph.plattner@gmx.at]
> > This driver can be used on machines having a non-supported
> > multi-serial interface like a E35/45/55 or some K-series
> > machines.
> 
> slight misunderstanding: this driver supports almost all the
> non-16550-compatible serial ports used on HP machines.  That includes E,
> F-I, K-class and the optional console card used with some D & R class
> machines.  It doesn't include "Burgundy", "Silverfox" or "Lego" console
> devices.  I'm working on updating the hwdb to reflect this.
> 
> --
> Revolutions do not require corporate support.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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I've got this K250, this is the one:

  http://hwdb.parisc-linux.org/view.php3?type=3Dmachine&name=3DK250=20

And trying to boot it with several of the premade images:

debian_3.0r0_hppa.iso
palinux-2.4.19-pa6-PDC-20020826-netinst.iso
palinux-2.4.19-pa19-20020922-netinst.iso

I only have a serial interface with a HP terminal, as far as I can tell
there is no way to connect a seperate monitor, although there are PS2
inputs for mouse and keyboard.

The serial console is connected to 'CONSOLE (X/4/0/0)*',=20
not the 'MDP'-port (as far as I can tell that is for an=20
external MUX?). It works fine from HPUX 10.20.

I've connected it to a terminal server for this session, though.

When trying to boot the CD I came pretty much further then
with earlier attempts (see previous postings by Rune Skillingstad,
appearing if you search on 'K250 linux' in Google).

However, first the trace of 0/vmlinuz32 from the newest netinst-image:

(there might be some lines missing as I needed to do some=20
cut-and-paste-tricks from my terminal server =3D)=20

Command line for kernel: 'ramdisk_size=3D8192 root=3D/dev/ram console=3Dtty=
S0
TERM=3Dvt102 palo_kernel=3D0/vmlinux32'
Selected kernel: /vmlinux32 from partition 0
Selected ramdisk: /ramdisk from partition 0
ELF32 executable
Entry 00100098 first 00100000 n 6
Segment 0 load 00100000 size 2196688 mediaptr 0x1000
Segment 1 load 0031a000 size 467792 mediaptr 0x21a000
Segment 2 load 00390000 size 255656 mediaptr 0x28d000
Segment 3 load 003d0000 size 8192 mediaptr 0x2cc000
Segment 4 load 003d8000 size 32768 mediaptr 0x2ce000
Segment 5 load 00402048 size 110832 mediaptr 0x2d6048
                                                    =20
Loading ramdisk 2662244 bytes @ 1fd63000...
Branching to kernel entry point 0x00100098.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org
                                                                      =20
Linux version 2.4.19-32 (root@mkhppa3) (gcc version 3.0.4) #1 Sun Sep 22
15:49:25 CEST 2002
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005a40 00000491 00000000 00000002 575b550e 100000f0 00000008 000000=
b2 000000b2 vers  00000205
CPUID vers 14 rev 9 (0x000001c9)
capabilities 0x3
model 9000/802/K250
Total Memory: 511 Mb
initrd: 2fd63000-2ffecf64
initrd: reserving 1fd63000-1ffecf64 (mem_max 1fffe000)
pagetable_init
On node 0 totalpages: 131070
zone(0): 131070 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: ramdisk_size=3D8192 root=3D/dev/ram console=3DttyS0
TERM=3Dvt102 palo_kernel=3D0/vmlinux32
Console: colour dummy device 160x64
Calibrating delay loop... 319.48 BogoMIPS
Memory: 512220k available
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
2. U2-IOA BC GSC+ Port (7) at 0xf103f000 [8/63], versions 0x501, 0x1, 0xc
3. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb
4. Mohawk Core FW-SCSI (4) at 0xf1800000 [10/0], versions 0x44, 0x0, 0x89
5. Gecko BOA BC GSC+ Port (7) at 0xf1804000 [10/4], versions 0x500, 0x0, 0xc
6. Sahp Baat Kiuh AP/MUX (5) at 0xf1900000 [10/4/0], versions 0x44, 0x0, 0xd
7. Interphase NIO-100BaseTX (4) at 0xf1908000 [10/4/8], versions 0x4, 0x0, =
0x382
8. Skunk SCSI (28655A) (4) at 0xf1910000 [10/4/16], versions 0x4, 0x0, 0x39
9. Skunk Centronics (28655A) (5) at 0xf1911000 [10/4/17], versions 0x4, 0x0=
, 0x3a
10. Gecko BOA BC HP-PB Port (7) at 0xf193c000 [10/4/60], versions 0x103, 0x=
0, 0xc
11. Mohawk Core BA (11) at 0xffd00000 [10/12], versions 0x44, 0x0, 0x81,
    additional addresses: 0xffd0c000 0xffc00000
12. Mohawk Core Centronics (10) at 0xffd02000 [10/12/0], versions 0x44, 0x0,
    0x74,  additional addresses: 0xffd01000 0xffd03000
13. Mohawk Core SCSI (10) at 0xffd06000 [10/12/5], versions 0x44, 0x0, 0x82
14. Mohawk Core LAN (802.3) (10) at 0xffd07000 [10/12/6], versions 0x44, 0x=
0,
    0x8a
15. Mohawk Core PS/2 Port (10) at 0xffd08000 [10/12/7], versions 0x44, 0x0,=
 0x84
16. Mohawk Core PS/2 Port (10) at 0xffd08100 [10/12/8], versions 0x44, 0x0,=
 0x84
17. U2-IOA BC GSC+ Port (7) at 0xf183f000 [10/63], versions 0x501, 0x1, 0xc
18. Mohawk 160 U 1M DC3- (K250) (0) at 0xfffa0000 [32], versions 0x5a4, 0x0=
, 0x4
19. Memory (1) at 0xfffb1000 [49], versions 0x53, 0x0, 0x9
CPU(s): 1 x PA8000 (PCX-U) at 160.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
LED display at ffd0c000 registered
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch support not available.
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
STI GSC/PCI graphics driver version 0.9
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead
Dumping Stack from 0x3fff8000 to 0x3fff8740:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead
Dumping Stack from 0x3fff8000 to 0x3fff8b80:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

(.. - and so on - I just print the 'Dumping stack' lines from now)

Dumping Stack from 0x3fff8000 to 0x3fff8fc0:
Dumping Stack from 0x3fff8000 to 0x3fff9400:
Dumping Stack from 0x3fff8000 to 0x3fff9840:
Dumping Stack from 0x3fff8000 to 0x3fff9c80:
Dumping Stack from 0x3fff8000 to 0x3fffa0c0:
Dumping Stack from 0x3fff8000 to 0x3fffa500:
Dumping Stack from 0x3fff8000 to 0x3fffa940:
Dumping Stack from 0x3fff8000 to 0x3fffad80:
Dumping Stack from 0x3fff8000 to 0x3fffb1c0:
Dumping Stack from 0x3fff8000 to 0x3fffb600:
Dumping Stack from 0x3fff8000 to 0x3fffba40:
Dumping Stack from 0x3fff8000 to 0x3fffbe80:
Dumping Stack from 0x3fff8000 to 0x3fffc2c0:
Dumping Stack from 0x3fff8000 to 0x3fffc700:
Dumping Stack from 0x3fff8000 to 0x3fffcb40:
Dumping Stack from 0x3fff8000 to 0x3fffcf80:
Dumping Stack from 0x3fff8000 to 0x3fffd3c0:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead
Dumping Stack from 0x3fff8000 to 0x3fffd800:
2D10L
FLT CBF0C1D2D10L
FLT 5002C1D2D10L
FLT 7D03C1D2D10L
FLT 5408C1D2D10L
FLT 5508C1D2D10L
FLT CBFBC1D

WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead
Dumping Stack from 0x40000000 to 0x400001c0:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

8000 82425ed8 275c3a54 0484bdb0 4eb874a8 09097b60 9d70e950 12644392 3a9767f3
8020 24c88724 752ecfe6 49910e48 ea5d9fcc 9354a9c2 d4cd8acb 26dfe6d6 a9eda0c5
8040 4dc978fe 53adf4d9 9b92f1fc a75be9b2 375356aa 4ec16637 6ea6ad54 9d82cc6e
8060 dd3beffa 3b732d8f ba77dff4 76e65b1e 74efbfe8 edccb63c e9a9ca82 dbefd92b
8080 d3252056 b7a90705 a63cf5fe 6f24bb59 4c79ebfc de4976b2 988562aa bce45837
80a0 317c7006 79be053d 62f8e00c f37c0a7a c587754a e68ea1a7 8b785fc6 cd6bf61d
80c0 16860ade 9aa15969 2d7aa0ee 35340781 5af541dc 6a680f02 b5ea83b8 d4d01e04
80e0 6ba3b222 a9d6895b d731d116 53dba7e5 ae63a22c a7b74fca 5cb1f10a 4f182ac7
8100 b963e214 9e30558e 72b1717a 3c161e4f e562e2f4 782c3c9e cac5c5e8 f058793c
8120 95fd3e82 e0c6472b 2b8cc856 c1fa3b05 576f25fe 8382c359 aea8feae 077333e1
8140 5d51fd5c 0ee667c2 baa3fab8 1dcccf84 7547f570 3b999f08 ea8feae0 77333e10
8160 d51fd5c0 ee667c20 aa491ed2 dcba4d13 54e488f6 b9022f75 a9bfa4be 7272ebb9
8180 537f497c e4e5d772 a68827aa c9bd1bb7 4d66fa06 930c823d 9abb415e 266fb129
81a0 357682bc 4cdf6252 6aed0578 99bec4a4 d5acbfa2 330b3c1b ab597f44 66167836
81c0 56b2fe88 cc2cf06c ad134842 982f558b 5a5025d6 30281e45 b4a04bac 60503c8a
81e0 69409758 c0a07914 d2f79be2 8136477b a5998296 021a3ba5 4b33052c 0434774a
8200 96660a58 0868ee94 2ccc14b0 10d1dd28 59982960 21a3ba50 b33052c0 434774a0
8220 6660a580 868ee940 ccb7fe52 0d6b67d3 996ffca4 1ad6cfa6 32dff948 35ad9f4c
8240 65bff290 6b5b3e98 cb7fe520 d6b67d30 96897f12 ad1a4f33 2d644b76 5a422b35
8260 5ac896ec b484566a b5e7988a 697e1987 6bcf3114 d2fc330e d7e8d77a a58ed34f
8280 afa71ba6 4b6b13cd 5f4e374c 96d6279a beeadbca 2ddafa67 7dd5b794 5bb5f4ce
82a0 fbab6f28 b76be99c f7206b02 6ea1666b ee40d604 dd42ccd6 dcf7195a baf32cff
82c0 b99887e6 7590ecad 73310fcc eb21d95a e614aaca d63507e7 cc5fe0c6 ac1cba9d
82e0 98c974de 584fc069 3192e9bc b09f80d2 6353662a 6149b4f7 c6a6cc54 c29369ee
8300 8d3b2dfa 8550668f 1a00eea6 0ad6784d 3401dd4c 15acf09a 6803ba98 2b59e134
8320 d0077530 56b3c268 a00eea60 ad6784d0 406b6192 5ab9bcf3 80d6c324 b57379e6
8340 01db331a 6a90469f 03b66634 d5208d3e 071a793a aa37af2f 0e424726 5419eb0d
8360 1c848e4c a833d61a 397fa9ca 50111967 72ff5394 a02232ce e588127a 4032d0cf
8380 cb1024f4 8065a19e 9656fcba 00bdf66f 2cadf974 017becde 595bf2e8 02f7d9bc
83a0 b2b7e5d0 05efb378 656fcba0 0bdf66f0 cadf9740 17becde0 95bf2e80 2f7d9bc0
83c0 2b7e5d00 5efb3780 56fcba00 bdf66f00 ad8fc152 7b9a6b53 5b1f82a4 f734d6a6
83e0 b649b01a ee1f181f 6ce5d566 dc48856d d9bd1f9e b8e7bf89 b30c8a6e 71b9ca41
8400 661914dc e3739482 cc449cea c6919c57 98ff8c86 8d558dfd 3189ac5e 1addaea9
8420 631358bc 35bb5d52 c626b178 6b76baa4 8c4d62f0 d6ed7548 18ec70b2 adac5fc3
8440 31ae5436 5b2e0ad5 635ca86c b65c15aa c6cfe58a 6cce9e07 8d9fcb14 d99d3c0e
8460 1b49237a b34ccd4f 36e4f3a6 66ef2fcd 6dc9e74c cdde5f9a dbe57bca 9bca0a67
8480 b7bc42c6 37e2a19d 6f78858c 6fc5433a def10b18 df8a8674 bd94a362 bf63b9bb
84a0 7b5ff396 7eb1c625 f6bfe72c fd638c4a ed097b0a fab1adc7 da644346 f515eedd
84c0 b4be33de ea5d68e9 690ad2ee d4cc6481 d263108e a9ee7c51 a4b0944e 53aa4df1
84e0 4961289c a7549be2 92b4e46a 4edf8297 2569c8d4 9dbf052e 4aa524fa 3b08bf0f
8500 954a49f4 76117e1e 2a9493e8 ec22fc3c 555f9282 d8334d2b aac99056 b0102f05
8520 55e595fe 6056eb59 abcb2bfc c0add6b2 57e0e2aa 812d1837 afb77006 022c853d
8540 5f6ee00c 04590a7a beddc018 08b214f4 7dbb8030 116429e8 fb770060 22c853d0
8560 f6ee00c0 4590a7a0 eddc0180 8b214f40 dbceb652 16342bd3 b79d6ca4 2c6857a6
8580 6f3ad948 58d0af4c de75b290 b1a15e98 bc9dd072 63340863 793ba0e4 c66810c6
85a0 f201f49a 8ca694df e4755c66 193b9ced c8eab8cc 327739da 91d57198 64ee73b4
85c0 23aae330 c9dce768 47237332 93cf7b83 8e305336 27e84255 1c60a66c 4fd084aa
85e0 38c14cd8 9fa10954 71f42ce2 3f34a7fb e3e859c4 7e694ff6 c7d0b388 fcd29fec
8600 8fd7d242 f9d38a8b 1fd911d6 f3d1a045 3fc496fe e7d5f5d9 7fff98ae cfdd5ee1
8620 ff89840e 9fcc0891 ff65bd4e 3feea471 fecb7a9c 7fdd48e2 fd96f538 ffba91c4
8640 fb5b5f22 ff0396db f6c00b16 fe7198e5 edf6a37e fc958499 db9bf3ae f95dbc61
8660 b741520e f2cdcd91 6ef4114e e5ed2e71 dd9e97ce cbace9b1 bb4b9ace 972f6631
8680 76e180ce 2e287931 edc3019c 5c50f262 db860338 b8a1e4c4 b77ab322 71357cdb
86a0 6ef56644 e26af9b6 dd9c79da c4a3463f bb4e46e6 8930392d 76ea389e 1216c709
86c0 edd4713c 242d8e12 dba8e278 485b1c24 b751c4f0 90b63848 6ed53cb2 211ac5c3
86e0 ddaa7964 42358b86 bb54f2c8 846b170c 76df50c2 08a09b4b edbea184 11413696
8700 db7d4308 22826d2c b6fa8610 4504da58 6df50c20 8a09b4b0 db9cad12 1465dc33
8720 b7395a24 28cbb866 6e72b448 519770cc dce56890 a32ee198 b9bc6472 462b7663
8740 7378c8e4 8c56ecc6 e687249a 18db6cdf cd0e4934 31b6d9be 9a1c9268 636db37c
8760 343924d0 c6db66f8 6804fcf2 8dc078a3 d07f4cb6 1bf64415 a0fe996c 37ec882a
8780 41fd32d8 6fd91054 83fa65b0 dfb220a8 07827e32 bf12f403 0f724936 7e535d55
87a0 1ee4926c fca6baaa 3dbf918a f93bc007 7b099646 f201355d f66599de e474dfe9
87c0 ecbd86ee c89f0a81 d90db88e 9148a051 b26dc44e 22e7f5f1 64db889c 45cfebe2
87e0 c9b71138 8b9fd7c4 93189722 17491adb 26312e44 2e9235b6 4c625c88 5d246b6c
8800 98c4b910 ba48d6d8 31ffc772 74e718e3 63ff8ee4 e9ce31c6 c789a89a d3ead6df
8820 8f65e466 a7a318ed 1ebd7d9e 4f308489 3d7afb3c 9e610912 7a83432a 3cb4a777
8840 f5068654 79694eee ea0d0ca8 f2d29ddc d46cac02 e5d38eeb a8afed56 cbd1a885
8860 51296ffe 97d5e459 a2246aae 2fdd7de1 4448d55c 5fbafbc2 8891aab8 bf75f784
8880 1155e022 7e9d5a5b 22abc044 fd3ab4b6 452135da fa03dc3f 8a34dee6 f4710d2d
88a0 141f089e e894af09 2848a46e d15feb41 50e7fd8e a2c963d1 a1b94e4e 45e472f1
88c0 43729c9c 8bc8e5e2 86938c6a 17e77e97 0d2718d4 2fcefd2e 1a4e31a8 5f9dfa5c
88e0 349c6350 bf3bf4b8 694e73f2 7e015c23 d29ce7e4 fc02b846 a54f7a9a f873c5df
8900 4ae84066 f0913eed 95a6359e e154c889 2b3ade6e c2df2441 5603098e 85c8fdd1
8920 ac70a64e 0be74ef1 58e14c9c 17ce9de2 b1c29938 2f9d3bc4 63853270 5f3a7788
8940 c70a64e0 be74ef10 8e627c92 7c9f6b73 1cc4f924 f93ed6e6 39ff471a f20b189f
8960 73883b66 e460846d e766c39e c8b7bd89 cebb326e 9119ce41 9d00d18e 224529d1
8980 3a01a31c 448a53a2 74034638 8914a744 e8703922 125ffbdb d0e07244 24bff7b6
89a0 a1c0e488 497fef6c 4381c910 92ffded8 87752772 258908e3 0eea4ee4 4b1211c6
89c0 1dd49dc8 9624238c 3bdf8ec2 2c3ef24b 77bf1d84 587de496 ef7e3b08 b0fbc92c
89e0 de8ac342 6181270b bd158684 c3024e16 7a5db85a 8672297f f4cdc5e6 0c92e7ad
8a00 e99b8bcc 1925cf5a d3371798 324b9eb4 a66e2f30 64973d68 4cdc5e60 c92e7ad0
8a20 99ce0992 922a40f3 33eaa676 242234b5 67d54cec 4844696a cfaa99d8 9088d2d4
8a40 9f2386e2 216710fb 3e470dc4 42ce21f6 7c8e1b88 859c43ec f96a8242 0b4e328b
8a60 f2d50484 169c6516 e5aa0908 2d38ca2c cb541210 5a719458 96a82420 b4e328b0
8a80 2d26fd12 69b0e433 5a4dfa24 d361c866 b4ed411a a6b5259f 69ac3766 4d1cfe6d
8aa0 d3586ecc 9a39fcda a6c668ca 34054ce7 4d8cd194 680a99ce 9b19a328 d015339c
8ac0 3645f302 a05cd26b 6cfd60 6b491480 b8f634c0
9100 d6e49c52 719adcd3 adc938a4 e335b9a6 5be4c41a c61dc61f b7bf3d66 8c4d396d
9120 6f08cf9e 18ecc789 de119f3c 31d98f12 bc233e78 63b31e24 78467cf0 c7663c48
9140 f0fa4cb2 8ebacdc3 e1822c36 1d032ed5 c304586c 3a065daa 8608b0d8 740cbb54
9160 0c1161b0 e81976a8 18547632 d0445803 30de5936 a0fe0555 61ca073e 418abff9
9180 c3940e7c 83157ff2 875ea9aa 065c4ab7 0ebd5354 0cb8956e 1d7aa6a8 19712adc
91a0 3af54d50 32e255b8 75ea9aa0 65c4ab70 ebd53540 cb8956e0 d7dcdfd2 97641893
91c0 afcf0af6 2ebe8475 5f9e15ec 5d7d08ea bf3c2bd8 bafa11d4 7e0ee2e2 758296fb
91e0 fc1dc5c4 eb052df6 f84d3eda d67ceebf f0ecc8e6 ac8f682d e1af249e 59686509
9200 c35e493c b2d0ca12 86ca272a 65d72177 0d944e54 cbae42ee 1b5e29fa 972a308f
9220 36cae6a6 2e22d44d 6d95cd4c 5c45a89a db2b9a98 b88b5134 b6218062 7160173b
9240 6c4300c4 e2c02e76 d8f0b4da c5f6e9bf b197dce6 8b9b662d 63590c9e 17407909
9260 c6b2193c 2e80f212 8d643278 5d01e424 1ac864f0 ba03c848 35e67cb2 747125c3
9280 6bccf964 e8e24b86 d7ef479a d1b2225f afa83a66 a312f1ed 5f26c19e 46535689
92a0 be4d833c 8ca6ad12 7cedb32a 193bef77 f9db6654 3277deee f3b6cca8 64efbddc
92c0 e76d9950 c9df7bb8 cead87f2 93c84223 9d2dbab6 27e63115 3a5b756c 4fcc622a
92e0 74b6ead8 9f98c454 e91b60e2 3f473dfb d236c1c4 7e8e7bf6 a46d8388 fd1cf7ec
9300 48adb242 fa4f5a8b 912dd1d6 f4e80045 222d16fe e9a6b5d9 442c98ae d33bdee1
9320 882f840e a6010891 1029bd4e 4c74a471 20537a9c 98e948e2 40d0406a 31a42497
9340 81a080d4 6348492e 034101a8 c690925c 06f4b602 8d5791eb 0d9fd956 1ad99685
9360 1b3fb2ac 35b32d0a 367f6558 6b665a14 6cfecab0 d6ccb428 d98b2032 adefdd03
9380 b360f536 5ba90f55 66c1ea6c b7521eaa cdf5618a 6ed28807 9beac314 dda5100e
93a0 37a3337a bb3c954f 6f30d3a6 760f9fcd de61a74c ec1f3f9a bcb5fbca d848ca67
93c0 791d42c6 b0e7219d f24c30de 61b8f669 e49861bc c371ecd2 c946762a 86956cf7
93e0 92fa5906 0d5c6cbd 25f4b20c 1ab8d97a 4be96418 3571b2f4 97d2c830 6ae365e8
9400 2fa59060 d5c6cbd0 5f3d9592 abfb22f3 be0d9e76 5780f0b5 7c1b3cec af01e16a
9420 f840cc8a 5e757787 f0819914 bceaef0e e175877a 79a36b4f c2eb0ef4 f346d69e
9440 85a0a8ba e6fb186f 0b37e426 cd80858d 16197d1e 9b77be49 2c444f6e 3699c9c1
9460 58889edc 6d339382 b1113db8 da672704 6254ce22 b4b8fb5b c4df2916 690743e5
9480 89be522c d20e87ca 130a110a a46bbac7 26629746 48a1c0dd 4cc52e8c 914381ba
94a0 99fce84a 22f1b627 33f9d094 45e36c4e 67f3a128 8bc6d89c cf91f702 17fb046b
94c0 9f23ee04 2ff608d6 3e47dc08 5fec11ac 7c8fb810 bfd82358 f969c572 7fc6f3e3
94e0 f2d38ae4 ff8de7c6 e5d1a09a ff6d7adf cbd5f466 feac40ed 97dd5d9e fd2e3489
9500 2fcc0e6e fa2adc41 5feea98e f4230dd1 bfabe64e e830aef1 7f2179ce d017e8b1
9520 fe3446ce a0596431 fc1e38ce 40c47d31 f83c719c 8188fa62 f00e566a 03674197
9540 e01cacd4 06ce832e c03959a8 0d9d065c 8072b350 1b3a0cb8 00e566a0 36741970
9560 01cacd40 6ce832e0 03959a80 d9d065c0 075d8052 b3d67ed3 0ecdb5f6 67da48f5
9580 1d9b6bec cfb491ea 3b40628a 9f1f9687 76f67046 3e49985d edece08c 7c9330ba
95a0 dbd9c118 f9266174 b7c53762 f23a77bb 6ffcdb96 e4025a25 df8f027e c8720119
95c0 bf68b1ae 9092b761 7ea7d60e 2153db91 fd4fac1c 42a7b722 fa9f5838 854f6e44
95e0 f5480522 0ae869db ea900a44 15d0d3b6 d5201488 2ba1a76c aa402910 57434ed8
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c2c0 d1f5ff3a 8374d22f a39d4b26 069f110d 473a964c 0d3e221a 8e752c98 1a7c4434
c2e0 1cea5930 34f88868 39d4b260 69f110d0 73a964c0 d3e221a0 e7247cd2 a7b2f613
c300 ce3e4cf6 4f135975 9c7c99ec 9e26b2ea 388f868a 3c3bd087 711f0d14 7877a10e
c320 e23e1a28 f0ef421c c40a8102 e1a8316b 8863b756 c326d785 10b1dbfe 863b1a59
c340 211502ae 0c0081e1 422a055c 180103c2 84540ab8 30020784 08a81570 60040f08
c360 11502ae0 c0081e10 22d6e092 80668973 45db7476 00bba7b5 8bb6e8ec 01774f6a
c380 176dd1d8 02ee9ed4 2edba3b0 05dd3da8 5db74760 0bba7b50 bb6e8ec0 1774f6a0
c3a0 76dd1d80 2ee9ed40 edba3b00 5dd3da80 db747600 bba7b500 b69e5952 7739df53
c3c0 6d3cb2a4 ee73bea6 da0fd01a dc91c81f b4691566 b955256d 68a49f9e 72dcff89
c3e0 d1493f3c e5b9ff12 a2e4cb2a cb054b77 45bf2306 967c23bd 8b08f35e 2c8ef229
c400 1611e6bc 591de452 2c23cd78 b23bc8a4 58312fa2 6401241b b0625f44 c8024836
c420 60b20bda 9072253f c112a2e6 2092ff2d 822545cc 4125fe5a 044a8b98 824bfcb4
c440 08e3a262 04e14c3b 11c744c4 09c29876 238e8988 138530ec 471d1310 270a61d8
c460 8e3a2620 4e14c3b0 1c744c40 9c298760 389e2dd2 3825bb93 713c5ba4 704b7726
c480 e278b748 e096ee4c c487dbc2 c15b69cb 897902d6 82c066c5 1284b0fe 05f678d9
c4a0 250961fc 0becf1b2 4a12c3f8 17d9e364 942587f0 2fb3c6c8 284b0fe0 5f678d90
c4c0 50961fc0 becf1b20 a15a8ad2 7de88313 42b515a4 fbd10626 851c9e1a f7d4b91f
c4e0 0a4f8966 efdfc76d 14e9a79e dfc93b89 29a5fa6e bfe4c241 533d418e 7fbf31d1
c500 a67a831c ff7e63a2 4c83b36a fe8a7217 9971d386 fd62517d 3295125e fab217a9
c520 655c91ee f5129a01 cacf968e ea538151 95e9984e d4d1b7f1 2ba585ce a9d5dab1
c540 573dbece 53dd0031 ae7b7d9c a7ba0062 5c804e6a 4f02b597 b9009cd4 9e056b2e
c560 72778cfa 3c7c630f e4ef19f4 78f8c61e c9de33e8 f1f18c3c 93cad282 e395ad2b
c580 27e31056 c75def05 4fb095fe 8ecd6b59 9f179eae 1dec63e1 3e2f3d5c 3bd8c7c2
c5a0 7c5e7ab8 77b18f84 f8bcf570 ef631f08 f10f5fb2 deb08b43 e2680a36 bd17a3d5
c5c0 c4a6a13e 7a59f2f9 894d427c f4b3e5f2 12ec31aa e9117eb7 25aed606 d254483d
c5e0 4b2b195e a4de2529 962087ee 49caff01 2c410fdc 9395fe02 58f4aaea 275d4957
c600 b1e955d4 4eba92ae 63d2aba8 9d75255c c7d3e202 3a9cffeb 8fa7c404 7539ffd6
c620 1f4f8808 ea73ffac 3ee9a542 d4914a0b 7da5ffd6 a9542145 fb3d4afe 52def7d9
c640 f67a95fc a5bdefb2 ec839eaa 4b0d6a37 d9073d54 961ad46e b278cffa 2c431d8f
c660 64f19ff4 58863b1e c9e33fe8 b10c763c 93b0ca82 626e592b 27619504 c4dcb256
c680 4eb59f5a 89cfd1ff 9d1d8be6 13e916ad 3a3b17cc 27d22d5a 74762f98 4fa45ab4
c6a0 e8ec5f30 9f48b568 d1ae0b32 3ee7df83 a35c1664 7dcfbf06 46b82cc8 fb9f7e0c
c6c0 8d06ecc2 f748494b 1a7b6cd6 eee627c5 34806cfe ddbafad9 69766cae bb0340e1
c6e0 d29a6c0e 76703491 a534d81c ece06922 4a1f056a d9b66717 9448bf86 b31a7b7d
c700 28e7ca5e 664243a9 51cf94bc cc848752 a3e99c2a 997fbbf7 47a58d06 3289c2bd
c720 8f4b1a0c 6513857a 1e963418 ca270af4 3d5add62 9438a0bb 7ac30f96 2807f425
c740 f5861f2c 500fe84a eb0c3e58 a01fd094 d66ec9e2 4049147b acdd93c4 809228f6
c760 59cd92da 0152e4bf b39b25b4 02a5c97e 67364b68 054b92fc ce6c96d0 0a9725f8
c780 9cd92da0 152e4bf0 39b25b40 2a5c97e0 7364b680 54b92fc0 e6c96d00 a9725f80
c7a0 cde46f52 52920a53 9bc8dea4 a52414a6 37e7081a 4a3e9c1f 6fce1034 947d383e
c7c0 dfea953a 288cc52f bfd52a74 51198a5e 7faa54e8 a23314bc ff221c82 44109c2b
c7e0 fe443904 88213856 fcfec75a 1034c5ff f9fd8eb4 20698bfe f3fb1d68 40d317fc
c800 e7f63ad0 81a62ff8 cf9ac0f2 033aeaa3 9f3581e4 0675d546 3e6b03c8 0cebaa8c
c820 7cd60790 19d75518 f9ac0f20 33aeaa30 f3581e40 675d5460 e6b03c80 cebaa8c0
c840 cd16cc52 9d03e4d3 9a5b2df6 3a717cf5 34b65bec 74e2f9ea 696cb7d8 e9c5f3d4
c860 d2afdae2 d3fd52fb a5290096 a78c10a5 4a24b47e 4f6e9419 944968fc 9edd2832
c880 28e464aa 3dcce537 51c8c954 7b99ca6e a39192a8 f73394dc 47559002 ee119ceb
c8a0 8edd9556 dc558c85 1dcd9ffe b8ddac59 3bed8aae 71cdede1 77db155c e39bdbc2
c8c0 efc09fea c74102d7 dff78a86 8ef4b0fd bf99a05e 1d9fd4a9 7f3340bc 3b3fa952
c8e0 fe668178 767f52a4 fccd02f0 ecfea548 f9ecb0b2 d98bffc3 f3afd436 b3614ad5
c900 e7291d3e 66b420f9 ce523a7c cd6841f2 9cd2c1aa 9aa636b7 39d33606 353ad83d
c920 73a66c0c 6a75b07a e74cd818 d4eb60f4 ceef0562 a9a074bb 9da8bf96 53365c25
c940 3b517f2c a66cb84a 76d44b0a 4cafc5c7 eda89614 995f8b8e db27997a 32c9a24f
c960 b64f32f4 6593449e 6c9e65e8 cb26893c d94a7e82 963ba72b b2e24856 2c01fb05
c980 65c490ac 5803f60a cb892158 b007ec14 9764f7e2 60796d7b 2ec9efc4 c0f2daf6
c9a0 5de56ada 819300bf bbbc60e6 0350b42d 7778c1cc 06a1685a eef18398 0d42d0b4
c9c0 dde30730 1a85a168 bbc60e60 350b42d0 778c1cc0 6a1685a0 ef183980 d42d0b40
c9e0 de46c652 a82ca3d3 bcfb39f6 502ff2f5 79f673ec a05fe5ea f39a528a 40c97e87
ca00 e734a514 8192fd0e ce1fff7a 03534f4f 9c3ffef4 06a69e9e 387ffde8 0d4d3d3c
ca20 70fffbd0 1a9a7a78 e1fff7a0 3534f4f0 c3ffef40 6a69e9e0 87ffde80 d4d3d3c0
ca40 0f890852 a9d112d3 1f64a5f6 53d490f5 3ec94bec a7a921ea 7de4228a 4f24f687
ca60 fbc84514 9e49ed0e f7e63f7a 3ce56f4f efcc7ef4 79cade9e df98fde8 f395bd3c
ca80 bf474e82 e75dcf2b 7ef82856 cecd2b05 fd86e5fe 9dece359 fb7b7eae 3baf73e1
caa0 f6f6fd5c 775ee7c2 ededfab8 eebdcf84 dbad4022 dd0d2a5b b72c3516 ba6ce1e5
cac0 6e2edf7e 74af7699 dc5dbefc e95eed32 b8cdc8aa d2cb6f37 71ed2406 a5e06b3d
cae0 e3acfd5e 4bb66329 c759fabc 976cc652 8ec5402a 2eaf39f7 1d8a8054 5d5e73ee
cb00 3b1500a8 babce7dc 765cb402 750f7aeb ecb96804 ea1ef5d6 d904655a d44b5eff
cb20 b27e7fe6 a8e008ad 648a4a9e 51b6a409 c914953c a36d4812 925f9f2a 46ac2577
cb40 24bf3e54 8d584aee 4908c9fa 1ac6208f 921193f4 358c411e 242327e8 6b18823c
cb60 48464fd0 d6310478 90fa2af2 ac14bda3 2182e0b6 585fce15 4305c16c b0bf9c2a
cb80 867d378a 61098d07 0cfa6f14 c2131a0e 19826b7a 8450814f 337263a6 08d7b7cd
cba0 66e4c74c 11af6f9a cdc98e98 235edf34 9b931d30 46bdbe68 37263a60 8d7b7cd0
cbc0 6e3ac192 1a804cf3 dc758324 350099e6 b8eb0648 6a0133cc 71d60c90 d4026798
cbe0 e3daac72 a8727a63 c7c3edb6 50924195 8f87db6c a124832a 1f79038a 423fb307
cc00 3ef20714 847f660e 7d92bb7a 0888794f fb2576f4 1110f29e f64aede8 2221e53c
cc20 ec95dbd0 4443ca78 d92bb7a0 888794f0 b221da12 11799cb3 6443b424 22f33966
cc40 c8876848 45e672cc 910ed090 8bcce598 226b1472 17ef7e63 44d628e4 2fdefcc6
cc60 89ac51c8 5fbdf98c 1358a390 bf7bf318 26c7f272 7e815363 4d8fe4e4 fd02a6c6
cc80 9b697c9a fa73f8df 36a44c66 f49144ed 6d3e2d9e e9543c89 da0aee6e d2decc41
cca0 b463698e a5cb2dd1 68b0664e 4be0eef1 d160cc9c 97c1dde2 a2b72c6a 2ff50e97
ccc0 456e58d4 5fea1d2e 8adcb1a8 bfd43a5c 15cfd602 7fdec1eb 2b9fac04 ffbd83d6
cce0 5749ed5a ff0db2ff aee56fe6 fe6dd0ad 5dbc6a9e fcad1409 bb0e606e f92c9d41
cd00 766a758e f22f8fd1 eca25e4e e429aaf1 d93209ce c825e0b1 b212a6ce 903d7431
cd20 6453f8ce 200c5d31 c8a7f19c 4018ba62 914fe338 803174c4 22e97322 00145cdb
cd40 45d2e644 0028b9b6 8ba5cc88 0051736c 174b9910 00a2e6d8 2e973220 0145cdb0
cd60 5d2e6440 028b9b60 ba5cc880 051736c0 74b99100 0a2e6d80 e9732200 145cdb00
cd80 d2e64400 28b9b600 a5cc8800 51736c00 4b991000 a2e6d800 97449552 45bb0553
cda0 2e892aa4 8b760aa6 5d64e01a 169aa01f bac9c034 2d35403e 75938068 5a6a807c
cdc0 eb2700d0 b4d500f8 d638b4f2 69dcb4a3 ac7169e4 d3b96946 5894669a a70467df
cde0 b15e7866 4e7e7aed 62bcf0cc 9cfcf5da c50f54ca 398f5ee7 8a1ea994 731ebdce
ce00 143d5328 e63d7b9c 280c1302 cc0c426b 506e9356 986e3185 a0ab93fe 30aad659
ce20 415727fc 6155acb2 82ae4ff8 c2ab5964 052a2aa2 8520079b 0a22e016 0a36ba65
ce40 1445c02c 146d74ca 288b8058 28dae994 511700b0 51b5d328 a22e0160 a36ba650
ce60 442ab792 46a1f9f3 88556f24 8d43f3e6 10dc6b1a 1af1529f 21b8d634 35e2a53e
ce80 4371ac68 6bc54a7c 86e358d0 d78a94f8 0db004f2 af639ca3 1b16bcb6 5eb18c15
cea0 362d796c bd63182a 6c2c478a 7ab08507 d8588f14 f5610a0e b0c7ab7a eab4a14f
cec0 61f9e3a6 d51ff7cd c385721e aa495ac9 877c516e 54e400c1 0ef8a2dc a9c80182
cee0 1d87f0ea 53e6b657 3b0fe1d4 a7cd6cae 766976fa 4fec6c0f ecd2edf4 9fd8d81e
cf00 d9d36eba 3fc7056f b3a6dd74 7f8e0ade 674dbae8 ff1c15bc ceedc082 fe4e9e2b
cf20 9dad3456 fceb8905 3b2cddfe f9a1a759 762f0eae f335fbe1 ec28a80e e61d4291
cf40 d827e54e cc4c3071 b0397fce 98eed5b1 60044ace 31ab1e31 c008959c 63563c62
cf60 80112b38 c6ac78c4 0054e322 8d2e44db 00df7316 1a2a3ce5 01bee62c 345479ca
cf80 037dcc58 68a8f394 06fb98b0 d151e728 0d818432 a2d57b03 1b75bd36 45dc4355
cfa0 36eb7a6c 8bb886aa 6da0418a 1707b807 db408314 2e0f700e b6810628 5c1ee01c
cfc0 6d020c50 b83dc038 da72adf2 700d3523 b4e55be4 e01a6a46 69bc029a c04261df
cfe0 d30eb066 80f276ed a66bd59e 01925889 4cd7ab3c 0324b112 99af5678 06496224
d000 335eacf0 0c92c448 66bd59e0 19258890 cd7ab3c0 324b1120 9af56780 64962240
d020 35eacf00 c92c4480 6ba32b52 922e3c53 d730e3f6 242acdf5 ae61c7ec 48559bea
d040 5cc38fd8 90ab37d4 b9f1aae2 2120dafb 73e355c4 4241b5f6 e7c6ab88 84836bec
d060 cffbe242 0970628b 9ff7c484 12e0c516 3fef8908 25c18a2c 7fdf1210 4b831458
d080 ffbe2420 970628b0 ff0afd12 2e7ae433 fe15fa24 5cf5c866 fc2bf448 b9eb90cc
d0a0 f8215dc2 73a194cb f042bb84 e7432996 e0f3c25a cef0e67f c19131e6 9d9779ad
d0c0 8354d69e 3b584609 06a9ad3c 76b08c12 0d535a78 ed611824 1ad001a2 dab4851b
d0e0 35d6b616 b51fbf65 6bdbd97e 6a49cb99 d7b7b2fc d4939732 af19d0aa a9519b37
d100 5e451406 52d5833d bc8a280c a5ab067a 7962e54a 4b20b9a7 f2c5ca94 9641734e
d120 e5fd207a 2cf453cf cbfa40f4 59e8a79e 97f481e8 b3d14f3c 2f9fb682 67d42b2b
d140 5f3f6d04 cfa85656 be086f5a 9f2619ff 7c666be6 3e3a86ad f8ccd7cc 7c750d5a
d160 f199af98 f8ea1ab4 e345ea62 f1a2803b c6fd6196 e333b525 8d8c767e c611df19
d180 1b6e59ae 8c550b61 36aa060e 18dca391 6d540c1c 31b94722 daa81838 63728e44
d1a0 b5503070 c6e51c88 6ad6d5b2 8dbc8c43 d5db1e36 1b0fadd5 abb63c6c 361f5baa
d1c0 576c78d8 6c3eb754 aed8f1b0 d87d6ea8 5dc75632 b08c6803 bbf81936 616e6555
d1e0 77f0326c c2dccaaa ef96d18a 85cf2007 df5b1646 0be8f55d beb62c8c 17d1eaba
d200 7d6c5918 2fa3d574 fad8b230 5f47aae8 f5b16460 be8f55d0 eb147d92 7d681ef3
d220 d628fb24 fad03de6 ac27431a f5d6ce9f 58383366 ebdb286d b006d39e d7c0e589
d240 607b126e aff77e41 c080918e 5f9849d1 8101231c bf3093a2 0274f36a 7e179217
d260 04e9e6d4 fc2f242e 09a578fa f828fd0f 133c44a6 f0274f4d 260e3c1e e0382bc9
d280 4c6acd6e c006e2c1 98a32f8e 807b70d1 3130ea4e 008054f1 6261d49c 0100a9e2
d2a0 c4c3a938 020153c4 89875270 0402a788 130ea4e0 08054f10 261d49c0 100a9e20
d2a0 c4c3a938 020153c4 89875270 0402a788 130ea4e0 08054f10 261d49c0 100a9e20
d2c0 4c3a9380 20153c40 98752700 402a7880 30ea4e00 8054f100 61a22952 00df5753
d2e0 c34452a4 01beaea6 8688a548 037d5d4c 0d114a90 06faba98 1a229520 0df57530
d300 34452a40 1beaea60 688a5480 37d5d4c0 d114a900 6faba980 a2295200 df575300
d320 44241152 bed81353 883e97f6 7dc693f5 107d2fec fb8d27ea 208cea8a f76cfa87
d340 416f6046 eeaf405d 82a875de dd2835e9 05265eee ba26de81 0a3a088e 743b0851
d360 1474111c e87610a2 289e976a d09a9417 514b9b86 a1439d7d a2e1825e 42f18fa9
d380 45c304bc 85e31f52 8bf0bc2a 0bb08bf7 17e17854 176117ee 2fc2f0a8 2ec22fdc
d3a0 5f85e150 5d845fb8 bf0bc2a0 bb08bf70 7e613012 7667cbb3 fcc26024 eccf9766
d3c0 f9f2751a d9e99b9f f3925f66 b3a5826d e7520b9e 673db189 cea4173c ce7b6312
d3e0 9d3e9b2a 9c807377 3a0b8306 397653bd 7417060c 72eca77a e82e0c18 e5d94ef4
d400 d02aad62 cbc428bb a023ef96 97fee425 40316a7e 2f8b7d19 8062d4fc 5f16fa32
d420 00c5a9f8 be2df464 01fde6a2 7c2d5d9b 03fbcd44 f85abb36 07812fda f0c3c33f
d440 0f74eae6 e1f1332d 1e9f609e c394d309 3d48746e 875f1341 7ae65d8e 0ec893d1
d460 f5ccbb1c 1d9127a2 eb997638 3b224f44 d732ec70 76449e88 ae65d8e0 ec893d10
d480 5cbd0492 d964cf73 b90cbc76 b2bf2bb5 726fcdbe 6508e239 e4df9b7c ca11c472
d4a0 c9c983aa 94553db7 93e5b206 28dcce3d 27cb640c 51b99c7a 4f96c818 a37338f4

Kernel Fault: Code=3D15 regs=3D1031d4c0 (Addr=3D40000004)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110 Not tainted
r00-03  00000000 1032d810 1010479c 40000000
r04-07  102db000 40000000 400001c0 00108024
r08-11  00000000 00000000 fffa0000 1032d810
r12-15  000000f2 000000fa 000000fd f0100000
r16-19  1031d080 f0000124 f000011c 00000000
r20-23  1032d810 00001a31 00000000 000003a8
r24-27  00000001 00000001 1032db40 1031a010
r28-31  00000030 ffffffff 1031d4c0 00000040
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10104168 1010416c
 IIR: 0c681097    ISR: 00000000  IOR: 40000004
 CPU:        0   CR30: 2fff8000 CR31: 103d8000
 ORIG_R28: f1900000



But with vmlinux64 instead:


Command line for kernel: 'ramdisk_size=3D8192 root=3D/dev/ram console=3Dtty=
S0
                         TERM=3Dvt102 palo_kernel=3D0/vmlinux64'
Selected kernel: /vmlinux64 from partition 0
Selected ramdisk: /ramdisk from partition 0
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 2845920 mediaptr 0x1000
Segment 1 load 003b8000 size 1321912 mediaptr 0x2b8000
Segment 2 load 004fc000 size 49152 mediaptr 0x3fb000
Loading ramdisk 2662244 bytes @ 1fd63000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.19-64 (root@mkhppa3) (gcc version 3.0) #1 Sun Sep 22 16:1=
5:57 CEST 2002
FP[0] enabled: Rev 0 Model 14
The 64-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005a40 00000491 00000000 00000002 575b550e 100000f0 00000008 000000=
b2 000000b2
vers  00000205
CPUID vers 14 rev 9 (0x000001c9)
capabilities 0x3
model 9000/802/K250
Total Memory: 511 Mb
initrd: 2fd63000-2ffecf64
initrd: reserving 1fd63000-1ffecf64 (mem_max 1fffe000)
pagetable_init
On node 0 totalpages: 131070
zone(0): 131070 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: ramdisk_size=3D8192 root=3D/dev/ram console=3DttyS0 TE=
RM=3Dvt102
                     palo_kernel=3D0/vmlinux64
Console: colour dummy device 160x64
Calibrating delay loop... 319.48 BogoMIPS
Memory: 504904k available
Dentry cache hash table entries: 65536 (order: 8, 1048576 bytes)
Inode cache hash table entries: 32768 (order: 7, 524288 bytes)
Mount-cache hash table entries: 8192 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 32768 (order: 6, 262144 bytes)
Page-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfffffffffff88000 [8], versions 0x580, 0x=
f, 0xb
2. U2-IOA BC GSC+ Port (7) at 0xfffffffff103f000 [8/63], versions 0x501, 0x=
1, 0xc
3. U2-IOA BC Runway Port (12) at 0xfffffffffff8a000 [10], versions 0x580, 0=
xf, 0xb
4. Mohawk Core FW-SCSI (4) at 0xfffffffff1800000 [10/0], versions 0x44, 0x0=
, 0x89
5. Gecko BOA BC GSC+ Port (7) at 0xfffffffff1804000 [10/4], versions 0x500,=
 0x0, 0xc
6. Sahp Baat Kiuh AP/MUX (5) at 0xfffffffff1900000 [10/4/0], versions 0x44,=
 0x0, 0xd
7. Interphase NIO-100BaseTX (4) at 0xfffffffff1908000 [10/4/8], versions 0x=
4, 0x0, 0x382
8. Skunk SCSI (28655A) (4) at 0xfffffffff1910000 [10/4/16], versions 0x4, 0=
x0, 0x39
9. Skunk Centronics (28655A) (5) at 0xfffffffff1911000 [10/4/17], versions =
0x4, 0x0, 0x3a
10. Gecko BOA BC HP-PB Port (7) at 0xfffffffff193c000 [10/4/60], versions 0=
x103, 0x0, 0xc
11. Mohawk Core BA (11) at 0xffffffffffd00000 [10/12], versions 0x44, 0x0,
    0x81,  additional addresses: 0xffffffffffd0c000 0xffffffffffc00000
12. Mohawk Core Centronics (10) at 0xffffffffffd02000 [10/12/0], versions 0=
x44,
    0x0, 0x74,  additional addresses: 0xffffffffffd01000 0xffffffffffd03000
13. Mohawk Core SCSI (10) at 0xffffffffffd06000 [10/12/5], versions 0x44, 0=
x0, 0x82
14. Mohawk Core LAN (802.3) (10) at 0xffffffffffd07000 [10/12/6], versions =
0x44, 0x0, 0x8a
15. Mohawk Core PS/2 Port (10) at 0xffffffffffd08000 [10/12/7], versions 0x=
44, 0x0, 0x84
16. Mohawk Core PS/2 Port (10) at 0xffffffffffd08100 [10/12/8], versions 0x=
44, 0x0, 0x84
17. U2-IOA BC GSC+ Port (7) at 0xfffffffff183f000 [10/63], versions 0x501, =
0x1, 0xc
18. Mohawk 160 U 1M DC3- (K250) (0) at 0xfffffffffffa0000 [32], versions 0x=
5a4, 0x0, 0x4
19. Memory (1) at 0xfffffffffffb1000 [49], versions 0x53, 0x0, 0x9
CPU(s): 1 x PA8000 (PCX-U) at 160.000000 MHz
Found U2 at 0xfffffffffff88000
ccio-dma.c: failed to claim CCIO bus address space (ffffffff00000000,ffffff=
ffffffffff)
Found U2 at 0xfffffffffff8a000
Lasi version 0 at 0xffffffffffd00000 found.
LED display at ffffffffffd0c000 registered
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch support not available.
Performance monitoring counters enabled for Mohawk 160 U 1M DC3- (K250)
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xffffffffffd02800, irq 184 [PCSPP]
STI GSC/PCI graphics driver version 0.9
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_P=
CI enabled
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x000000003fff0000 to 0x000000003fff0d80:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x000000003fff0000 to 0x000000003fff1440:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff1b00:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff21c0:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff2880:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff2f40:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff3600:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff3cc0:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff4380:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff4a40:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff5100:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff57c0:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff5e80:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff6540:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff6c00:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff72c0:
Dumping Stack from 0x000000003fff0000 to 0x000000003fff7980:
Dumping Stack from 0x000000003fff8000 to 0x000000003fff8040:
Dumping Stack from 0x000000003fff8000 to 0x000000003fff8700:
Dumping Stack from 0x000000003fff8000 to 0x000000003fff8dc0:
Dumping Stack from 0x000000003fff8000 to 0x000000003fff9480:
Dumping Stack from 0x000000003fff8000 to 0x000000003fff9b40:
Dumping Stack from 0x000000003fff8000 to 0x000000003fffa200:
Dumping Stack from 0x000000003fff8000 to 0x000000003fffa8c0:
Dumping Stack from 0x000000003fff8000 to 0x000000003fffaf80:
Dumping Stack from 0x000000003fff8000 to 0x000000003fffb640:
Dumping Stack from 0x000000003fff8000 to 0x000000003fffbd00:
Dumping Stack from 0x000000003fff8000 to 0x000000003fffc3c0:
Dumping Stack from 0x000000003fff8000 to 0x000000003fffca80:
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

Dumping Stack from 0x000000003fff8000 to 0x000000003fffd140:
2D10L
fLT  CBF0C1D2D10L
FLT  5002C1D2D10L
FLT  7D03C1D2D10L
FLT  5408C1D2D10L
FLT  5508C1D2D10L
FLT  CBF4C1D2D10L
FLT  CBFCC1D2D10L
FLT  CBF0C1D2D10L
FLT  5002C1D2D10L
FLT  7D03C1D2D10L

(loops forever)


The stack dumps are similar with the other images.

Any ideas..? :=3D)

--=20
Stian S=F8iland               Work toward win-win situation. Win-lose
ITEA systemdrift            is where you win and the other lose.
http://www.stud.ntnu.no/    Lose-lose and lose-win are left as an
                            exercise to the reader.  [Limoncelli/Hogan]


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Subject: Re: [parisc-linux] 9000/802/K250 won't boot with images -
	serial/stack problem?
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> The serial console is connected to 'CONSOLE (X/4/0/0)*', 

This is good, see .. we even find the device :)
> 6. Sahp Baat Kiuh AP/MUX (5) at 0xf1900000 [10/4/0], versions 0x44,
0x0, 0xd

> Command line for kernel: 'ramdisk_size=8192 root=/dev/ram console=ttyS0
Oops... this is bad.  The K class systems do not have a 16550 compatible
serial port.  The console should be ttyB0.
For mor info on the console, see Matthew's excellent description of what
systems use the Serial Mux driver.

http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017837.html


Thanks,

- Ryan




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] 9000/802/K250 won't boot with images - serial/stack problem?
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On Mon, Sep 30, 2002 at 02:19:51PM -0600, Ryan Bradetich wrote:
> For mor info on the console, see Matthew's excellent description of what
> systems use the Serial Mux driver.
> 
> http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017837.html

FWIW, the hwdb is now updated to reflect this.  Thanks, Thibaut!

-- 
Revolutions do not require corporate support.


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On 2002-09-30 22:19:51, Ryan Bradetich wrote:

> > The serial console is connected to 'CONSOLE (X/4/0/0)*',=20
> This is good, see .. we even find the device :)
> > 6. Sahp Baat Kiuh AP/MUX (5) at 0xf1900000 [10/4/0], versions 0x44,
> 0x0, 0xd
> > Command line for kernel: 'ramdisk_size=3D8192 root=3D/dev/ram console=
=3DttyS0
> Oops... this is bad.  The K class systems do not have a 16550 compatible
> serial port.  The console should be ttyB0.
> For mor info on the console, see Matthew's excellent description of what
> systems use the Serial Mux driver.
> http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/01783=
7.html

Aha! :=3D)

But with:

Command line for kernel: 'ramdisk_size=3D8192 root=3D/dev/ram console=3Dtty=
B0
TERM=3Dvt102 palo_kernel=3D0/vmlinux'

(..)

Branching to kernel entry point 0x00100098.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org


And that IS the last thing I see :/

with console=3DttyS0 at least more output came. How do I 'switch console'?=
=20


Do I need to connect something to this MDP-port instead?
(how? It is some inverted rs232 15-pin)

This happens with both vmlinux32 og 64.


--=20
Stian S=F8iland               There are only 10 types of people in the worl=
d:
ITEA systemdrift            Those who understand binary, and those who don'=
t.
http://www.stud.ntnu.no/   =20
                           =20


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From: Frank Cornelis <Frank.Cornelis@rug.ac.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] firmware update using BOOTP
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> most of my 712's are ver 1.9 or 2.1 & they all work fine as far as i can
> see with linux - is there any advantage to updating to 2.3 ?
>
> or is this a case of 'if its not broken....'

The text file that comes with the 2.3 patch mentions
	More reliable LAN operation
as one of the improvements. I wanted to be sure for my BOOTP lifimage
loading.
Anyway, it's really easy to do.
Create an /etc/bootptab on your server containing:
.default:\
        :sm=255.255.255.224:\
        :gw=192.168.1.62:\
        :ds=195.130.131.2:\
        :ht=ethernet:\
        :bf=C7120023.frm:

hp712:hn:ha=0800099D56DA:ip=192.168.1.34:tc=.default

Of course, adjust with your network settings (man bootptab).
Run the bootpd daemon (and tftp daemon) on your server and reboot your HP.
Then goto the BOOT_ADMIN menu using ESC and type:
	search lan
You should see your BOOTP server listed.
Then simply do:
	boot lan

That's it.

Frank.



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i installed all my 712's from bootp without upgrading & they went fine -
even the ones with the 1.9 firmwares

have you got a pointer to the firmware update info so i can check it out
the pros/cons myself ?

James S


On Mon, 2002-09-30 at 15:50, Frank Cornelis wrote:
> 
> > most of my 712's are ver 1.9 or 2.1 & they all work fine as far as i can
> > see with linux - is there any advantage to updating to 2.3 ?
> >
> > or is this a case of 'if its not broken....'
> 
> The text file that comes with the 2.3 patch mentions
> 	More reliable LAN operation
> as one of the improvements. I wanted to be sure for my BOOTP lifimage
> loading.
> Anyway, it's really easy to do.
> Create an /etc/bootptab on your server containing:
> .default:\
>         :sm=255.255.255.224:\
>         :gw=192.168.1.62:\
>         :ds=195.130.131.2:\
>         :ht=ethernet:\
>         :bf=C7120023.frm:
> 
> hp712:hn:ha=0800099D56DA:ip=192.168.1.34:tc=.default
> 
> Of course, adjust with your network settings (man bootptab).
> Run the bootpd daemon (and tftp daemon) on your server and reboot your HP.
> Then goto the BOOT_ADMIN menu using ESC and type:
> 	search lan
> You should see your BOOTP server listed.
> Then simply do:
> 	boot lan
> 
> That's it.
> 
> Frank.
> 




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Subject: Re: [parisc-linux] 9000/802/K250 won't boot with images -
	serial/stack problem?
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Ah,

I am sorry.  I see the problem now :)

The problem is that /dev/ttyB0 does not have a registered major/minor
number.  We use a local on for the parisc-linux kernel.  Since we
/dev/ttyB0 is non-standard, the regular boot floppy from debian will
not boot this box.  I would suggest getting on from the ESIEE
team provides at:

	http://pateam.esiee.fr/cd-images/testing/

Specifically the images you are looking for have the -PDC in the name.=20
These kernels have the PDC Software Console enabled (which will work for
your system).

Thanks,

- Ryan

P.S. What would it take to get the default debian configs to compile in
the the Serial Mux, and to provide the /dev/ttyB0 from the parisc-linux
port by default in debian?  A patch to the debian def_configs and the
MAKEDEV package?


On Mon, 2002-09-30 at 14:45, Stian Soiland wrote:
> On 2002-09-30 22:19:51, Ryan Bradetich wrote:
>=20
> > > The serial console is connected to 'CONSOLE (X/4/0/0)*',=20
> > This is good, see .. we even find the device :)
> > > 6. Sahp Baat Kiuh AP/MUX (5) at 0xf1900000 [10/4/0], versions 0x44,
> > 0x0, 0xd
> > > Command line for kernel: 'ramdisk_size=3D8192 root=3D/dev/ram console=
=3DttyS0
> > Oops... this is bad.  The K class systems do not have a 16550 compatibl=
e
> > serial port.  The console should be ttyB0.
> > For mor info on the console, see Matthew's excellent description of wha=
t
> > systems use the Serial Mux driver.
> > http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017=
837.html
>=20
> Aha! :=3D)
>=20
> But with:
>=20
> Command line for kernel: 'ramdisk_size=3D8192 root=3D/dev/ram console=3Dt=
tyB0
> TERM=3Dvt102 palo_kernel=3D0/vmlinux'
>=20
> (..)
>=20
> Branching to kernel entry point 0x00100098.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org
>=20
>=20
> And that IS the last thing I see :/
>=20
> with console=3DttyS0 at least more output came. How do I 'switch console'=
?=20
>=20
>=20
> Do I need to connect something to this MDP-port instead?
> (how? It is some inverted rs232 15-pin)
>=20
> This happens with both vmlinux32 og 64.
>=20
>=20
> --=20
> Stian S=F8iland               There are only 10 types of people in the wo=
rld:
> ITEA systemdrift            Those who understand binary, and those who do=
n't.
> http://www.stud.ntnu.no/   =20
>                            =20
>=20




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Subject: Re: [parisc-linux] 9000/802/K250 won't boot with images - serial/stack problem?
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On Mon, Sep 30, 2002 at 03:06:29PM -0600, Ryan Bradetich wrote:
> P.S. What would it take to get the default debian configs to compile in
> the the Serial Mux, and to provide the /dev/ttyB0 from the parisc-linux
> port by default in debian?  A patch to the debian def_configs and the
> MAKEDEV package?

we really shouldn't be distributing a kernel that uses char-major-42.

 42             Demo/sample use

                This number is intended for use in sample code, as
                well as a general "example" device number.  It
                should never be used for a device driver that is being
                distributed; either obtain an official number or use
                the local/experimental range.  The sudden addition or
                removal of a driver with this number should not cause
                ill effects to the system (bugs excepted.)

                IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A
                DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT.

maybe we could recycle char 11?

ideally, i'd like to have this driver claim ttyS ports from the
serial core ... but that's not necessarily going to happen for 2.5,
and definitely not for 2.4.

anyone fancy contacting lanana and asking for an official allocation?

-- 
Revolutions do not require corporate support.


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What do you mean locked down?  Boot the thing single user and delete
the password.  At the "Press any key to interrupt boot" prompt stop the
boot.  Type BO <enter> interact with ISL? <y> <enter>.  Then at the isl
prompt type <hpux -is> <enter>.  That will get you into single user
mode.  Unless the system is setup in trusted mode you should be able to
get in and modify the /etc/passwd file.  The user name should come
first followed by the password that is encrypted within the colons
(ex:root:VDTGE$8757474:).  Delete the encrypted stuff but leave the
colons and save it.  Reboot it in multiuser mode and root shouldn't
have a password.

derek


--- Stephen J de Vries <paulhill20@juno.com> wrote:
> I have a HP 712 that I'd purchased recently.
> 
> My question is:
> 
> Can I use a PC monitor, keyboard, and mouse to boot the thing up?  If
> so,
> does the monitor have to be a multisync or something special?
> 
> In addition, HP-UX is on the hard drive but is locked down.  I was
> thinking of buying an external CD drive and attempting to load debian
> 0.93.  Can anyone recommend a place to buy the CD drive that they
> have
> dealt with?  I also have a network so I could attempt a network
> install
> but I am not sure what minimum requirements I'd need to fulfill for
> that.
>  Is my approach the right one?
> 
> Thanks for the advice...
> 
> Stephen de Vries
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


__________________________________________________
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--- Andreas Deresch <aderesch@fs.tum.de> wrote:
> On Wed, 25 Sep 2002, Thibaut VARENE wrote:
> 
> > Stephen J de Vries wrote:
> > > I have a HP 712 that I'd purchased recently.
> > >
> > > My question is:
> > >
> > > Can I use a PC monitor, keyboard, and mouse to boot the thing up?
>  If so,
> > > does the monitor have to be a multisync or something special?
> > OK for the PC monitor. Use 'Tab' at boot time to switch 712's
> resolution
> > NO for the PC keyboard (pc kbd is 75mA iirc, 712 is 500mA)
> Hhmm. I have used two different PS/2 keyboards on a 712. So far
> nothing
> unexpected has happened to either the box nor the keyboard... it
> works just
> fine.
> 
> ad
> 

Me too....

derek

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Subject: Re: [parisc-linux] 9000/802/K250 won't boot with images - serial/stack 
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As far as I see the problem: YES, you must use the
serial porton the MDP (port 0 !). Or use the PDC console
instead of MUX driver, then you are on the safe side,
concerning the console connecting method. The PDC
conolse driver takes that interface, which is configured
in the PDC monitor as console, independent of device
type, chips, ports, etc...

For a 15-pin layout, I cannot give you info. I only can
help on the MUX with the 25DB-SUB used on E55 and similar.

Christoph


Stian Soiland wrote:
> 
> On 2002-09-30 22:19:51, Ryan Bradetich wrote:
> 
> > > The serial console is connected to 'CONSOLE (X/4/0/0)*',
> > This is good, see .. we even find the device :)
> > > 6. Sahp Baat Kiuh AP/MUX (5) at 0xf1900000 [10/4/0], versions 0x44,
> > 0x0, 0xd
> > > Command line for kernel: 'ramdisk_size=8192 root=/dev/ram console=ttyS0
> > Oops... this is bad.  The K class systems do not have a 16550 compatible
> > serial port.  The console should be ttyB0.
> > For mor info on the console, see Matthew's excellent description of what
> > systems use the Serial Mux driver.
> > http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017837.html
> 
> Aha! :=)
> 
> But with:
> 
> Command line for kernel: 'ramdisk_size=8192 root=/dev/ram console=ttyB0
> TERM=vt102 palo_kernel=0/vmlinux'
> 
> (..)
> 
> Branching to kernel entry point 0x00100098.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org
> 
> And that IS the last thing I see :/
> 
> with console=ttyS0 at least more output came. How do I 'switch console'?
> 
> Do I need to connect something to this MDP-port instead?
> (how? It is some inverted rs232 15-pin)
> 
> This happens with both vmlinux32 og 64.
> 
> --
> Stian Siland               There are only 10 types of people in the world:
> ITEA systemdrift            Those who understand binary, and those who don't.
> http://www.stud.ntnu.no/
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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James Smith wrote:
> most of my 712's are ver 1.9 or 2.1 & they all work fine as far as i can
> see with linux - is there any advantage to updating to 2.3 ?
> 
> or is this a case of 'if its not broken....'

Definitely. And I hope that's clear in the FAQ.

grant


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On 2002-10-01 00:39:53, Christoph Plattner wrote:

> As far as I see the problem: YES, you must use the
> serial porton the MDP (port 0 !). Or use the PDC console
> instead of MUX driver, then you are on the safe side,
> concerning the console connecting method. The PDC
> conolse driver takes that interface, which is configured
> in the PDC monitor as console, independent of device
> type, chips, ports, etc...

Luckily - with the -PDC-images and ttyB0 everything worked out
perfectly, the kernel found all my disks, my network card,
it is now "Installing base packages..." - so I go home to eat dinner
and connect with ssh to the serial terminal server to watch for further
progress :=3D)

Well.. I delayed the dinner, and now the box is perfect :)
Brilliant work, everyone! I really had no idea it would
work that smooth.

  http://beist.ntnu.nu/

--=20
Stian S=F8iland               Det er ikke for lurt =E5 pr=F8ve noe nytt n=
=E5r man
ITEA systemdrift            egentlig er for sliten til =E5 spise is. [Hauge=
n]
http://www.stud.ntnu.no/   =20
                           =20


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This is a multi-part message in MIME format.
--------------080203060207020303060903
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Please see the attachment.
I use firmware 2.4 on this HP


--------------080203060207020303060903
Content-Type: text/plain;
 name="hp"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="hp"

Oct  1 01:00:03 obzor kernel: WARNING! Stack pointer and cr30 do not
correspond!Oct  1 01:00:03 obzor kernel: Dumping virtual address stack
instead
Oct  1 01:00:03 obzor kernel:
Oct  1 01:00:03 obzor kernel: Dumping Stack from 0x3ff60000 to 0x3ff609c0:
Oct  1 08:14:59 obzor syslogd 1.4.1#10: restart.
Oct  1 08:14:59 obzor kernel: klogd 1.4.1#10, log source = /proc/kmsg
started.
Oct  1 08:14:59 obzor kernel: Inspecting /boot/System.map

--------------080203060207020303060903--



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> i installed all my 712's from bootp without upgrading & they went fine -
> even the ones with the 1.9 firmwares

I know, BOOTP booting also worked with me before the firmware patching.
But anyway, upgrading never hurts and the HP/linux FAQ recommended it.

> have you got a pointer to the firmware update info so i can check it out
> the pros/cons myself ?

All the firmware updates can be found at:
	ftp://us-ffs.external.hp.com/firmware_patches/hp/cpu/catalog

Frank.



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On Mon, Sep 30, 2002 at 03:31:15PM -0700, Derek Engelhaupt wrote:
> --- Andreas Deresch <aderesch@fs.tum.de> wrote:
> > On Wed, 25 Sep 2002, Thibaut VARENE wrote:
> > > Stephen J de Vries wrote:
> > > > I have a HP 712 that I'd purchased recently.
> > > > My question is:
> > > > Can I use a PC monitor, keyboard, and mouse to boot the thing
> > > > up?  If so, does the monitor have to be a multisync or something
> > > > special?
> > > OK for the PC monitor. Use 'Tab' at boot time to switch 712's
> > > resolution
> > > NO for the PC keyboard (pc kbd is 75mA iirc, 712 is 500mA)
> > Hhmm. I have used two different PS/2 keyboards on a 712. So far
> > nothing unexpected has happened to either the box nor the
> > keyboard... it works just fine.
> Me too....

And even if those numbers meant something, 712 having 500mA available
and a keyboard pulling 75mA out of it would be perfectly fine. Now if
those were voltages or impedances, then you might want to match.

My SGI Granite says 12V 300mA max kb, 5V 15mA mouse
My HP C1429B says 200mA max, 12V 120mA (Whoa!) mouse
My Sun type4 says 5V 0.35A (sic) max both
ICL PS/2 says 0.3A

JFTR. ICBW, but I don't think so.

-- 
The meek will inherit the earth; the rest of us will go to the stars.



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Harri Haataja wrote:
> On Mon, Sep 30, 2002 at 03:31:15PM -0700, Derek Engelhaupt wrote:
> 
>>--- Andreas Deresch <aderesch@fs.tum.de> wrote:
>>
>>>On Wed, 25 Sep 2002, Thibaut VARENE wrote:
>>>
>>>>Stephen J de Vries wrote:
>>>>
>>>>>I have a HP 712 that I'd purchased recently.
>>>>>My question is:
>>>>>Can I use a PC monitor, keyboard, and mouse to boot the thing
>>>>>up?  If so, does the monitor have to be a multisync or something
>>>>>special?
>>>>
>>>>OK for the PC monitor. Use 'Tab' at boot time to switch 712's
>>>>resolution
>>>>NO for the PC keyboard (pc kbd is 75mA iirc, 712 is 500mA)
>>>
>>>Hhmm. I have used two different PS/2 keyboards on a 712. So far
>>>nothing unexpected has happened to either the box nor the
>>>keyboard... it works just fine.
>>
>>Me too....


OK, just to put an end at this flow of mails, I was completely wrong 
about the keyboard and confused things with another problem we had in 
the past.

Therefore, I do confirm that 712 _can_ use any PC material. ;)

I hope that makes everybody happy :o)


-- 
Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Subject: [parisc-linux] [roland@redhat.com: Re: [PATCH] glibc 2.2.94 - hppa - min kernel and unwind-find-fde]
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pa,

Do we actaully have such a thing as old C++ binaries? :)
Thoughs or comments appreciated.

c.

----- Forwarded message from Roland McGrath <roland@redhat.com> -----

Envelope-to: carlos@localhost
Delivery-date: Tue, 01 Oct 2002 15:51:34 -0400
From: Roland McGrath <roland@redhat.com>
To: "Carlos O'Donell" <carlos@baldric.uwo.ca>
Cc: libc-alpha@sources.redhat.com, debian-glibc@lists.debian.org
Subject: Re: [PATCH] glibc 2.2.94 - hppa - min kernel and unwind-find-fde
X-Windows: ignorance is our most important resource.

> The following patch bumps up the minimum kernel required for hppa,
> and adds libc_cv_gcc_unwind_find_fde (I'm curious if this last bit 
> is still needed?). 

Please figure it out and be sure.  You need it only if there are existing
old C++ binaries that have references to _Unwind_Find_FDE.  If there are no
C++ binaries you want to be compatible with that predate a certain GCC
version (not sure which off hand), then you don't need it.  But I don't
think it hurts to have it.

> 2002-10-01  Matthew Wilcox  <willy@debian.org>
> 
> 	* sysdeps/unix/sysv/linux/configure: 
> 	Make 2.4.18 minimum linux kernel for hppa, and add 
> 	libc_cv_gcc_unwind_find_fde=yes.

This log entry is for a generated file, and there is no log entry for the
actual source file.

----- End forwarded message -----


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Subject: Re: [parisc-linux] [roland@redhat.com: Re: [PATCH] glibc 2.2.94 - hppa - min kernel and unwind-find-fde]
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> Please figure it out and be sure.  You need it only if there are existing
> old C++ binaries that have references to _Unwind_Find_FDE.  If there are no
> C++ binaries you want to be compatible with that predate a certain GCC
> version (not sure which off hand), then you don't need it.  But I don't
> think it hurts to have it.

I believe that this is needed for dw2 exception support.  This doesn't
work with gcc 3.0.4, so I don't think you need to worry much about old
binaries.

> > 2002-10-01  Matthew Wilcox  <willy@debian.org>
> > 
> > 	* sysdeps/unix/sysv/linux/configure: 
> > 	Make 2.4.18 minimum linux kernel for hppa, and add 
> > 	libc_cv_gcc_unwind_find_fde=yes.
> 
> This log entry is for a generated file, and there is no log entry for the
> actual source file.

I noticed this when I was fixing the gcc dw2 exception support.  Changing
it didn't seem to have any affect on the v3 or g++ testsuite results, but
it seems the correct thing to do.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] 9000/802/K250 won't boot with images - serial/stack 
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Very good, the last comment on the page !!!!
The thing with HP-UX without patch and the comparison
to the Ferrari .... !!! Good !!

Bye
Christoph


Stian Soiland wrote:
> 
> On 2002-10-01 00:39:53, Christoph Plattner wrote:
> 
> > As far as I see the problem: YES, you must use the
> > serial porton the MDP (port 0 !). Or use the PDC console
> > instead of MUX driver, then you are on the safe side,
> > concerning the console connecting method. The PDC
> > conolse driver takes that interface, which is configured
> > in the PDC monitor as console, independent of device
> > type, chips, ports, etc...
> 
> Luckily - with the -PDC-images and ttyB0 everything worked out
> perfectly, the kernel found all my disks, my network card,
> it is now "Installing base packages..." - so I go home to eat dinner
> and connect with ssh to the serial terminal server to watch for further
> progress :=)
> 
> Well.. I delayed the dinner, and now the box is perfect :)
> Brilliant work, everyone! I really had no idea it would
> work that smooth.
> 
>   http://beist.ntnu.nu/
> 
> --
> Stian Siland               Det er ikke for lurt  prve noe nytt nr man
> ITEA systemdrift            egentlig er for sliten til  spise is. [Haugen]
> http://www.stud.ntnu.no/
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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Subject: [parisc-linux] Request for preliminary approval for a lanana device number.
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Alan,

I have written a driver to handle the non-16550-compatible serial ports
used on the parisc machines.  This includes support for the E, F-I,
K and optional console card for the D & R class systems.  The console
for these systems is on port 0 of the MUX.  

I would like to request prelimiary approval from you that you intend to
merge this driver into your tree, so I can request a valid device
number from lanana.

Here is a link to the code in CVS:
http://cvs.parisc-linux.org/linux/drivers/char/mux.c?rev=1.3&content-type=text/vnd.viewcvs-markup


Obviously this driver is not finished yet, as others are working on
getting the full MUX support from these devices, but this driver does
handle the console nicely.

I am not asking for you to pick this driver up immediately, as I assume
you will pick it up during your next merging excercise of the
parisc-linux tree.


Thanks much for your time, and hopefully we can get approval for the
device number to get these systems supported by the Debian installer.

Thanks,

- Ryan




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Subject: Re: [parisc-linux] [roland@redhat.com: Re: [PATCH] glibc 2.2.94 - hppa - min kernel and unwind-find-fde]
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> > Please figure it out and be sure.  You need it only if there are existing
> > old C++ binaries that have references to _Unwind_Find_FDE.  If there are no
> > C++ binaries you want to be compatible with that predate a certain GCC
> > version (not sure which off hand), then you don't need it.  But I don't
> > think it hurts to have it.
> 
> I believe that this is needed for dw2 exception support.  This doesn't
> work with gcc 3.0.4, so I don't think you need to worry much about old
> binaries.

So the rationale is:
It never worked, so removing it still leaves non-working old C++ binaries.

I assume I would be able to test this by looking at all the C++ binaries 
in the hppa archive and looking for ref's to _Unwind_Find_FDE.
 
> > > 2002-10-01  Matthew Wilcox  <willy@debian.org>
> > > 
> > > 	* sysdeps/unix/sysv/linux/configure: 
> > > 	Make 2.4.18 minimum linux kernel for hppa, and add 
> > > 	libc_cv_gcc_unwind_find_fde=yes.
> > 
> > This log entry is for a generated file, and there is no log entry for the
> > actual source file.
> 
> I noticed this when I was fixing the gcc dw2 exception support.  Changing
> it didn't seem to have any affect on the v3 or g++ testsuite results, but
> it seems the correct thing to do.
> 

Setting "libc_cv_gcc_unwind_find_fde=no" seems the correct thing to do?
                                    ^^^^
c.


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Anyone using them?  I have a bunch of IBM DCHS-04F Ultrastar 2XP 4.3GB
(got info from IBM's website about jumpers and tried them all) drives
that I'm trying to get them to work but all they do is SCSI bus reset
when Debian trys to load.  They are factory refurbed 50-pin SE disks
and I have activated Autostart on them and active termination (tried it
without too).  Anyway, they perform this way under HP-UX too.  Tried a
2GB HP drive and it works fine so the system SCSI bus is fine.  So,
bottom line is anyone using NON-HP disks in thier systems?  Tried them
in my E55, 712/60, and 712/100.  Have tried 2 different drives with the
same result also.....

derek

__________________________________________________
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Subject: Re: [parisc-linux] [roland@redhat.com: Re: [PATCH] glibc 2.2.94 - hppa - min kernel and unwind-find-fde]
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> > > > 2002-10-01  Matthew Wilcox  <willy@debian.org>
> > > > 
> > > > 	* sysdeps/unix/sysv/linux/configure: 
> > > > 	Make 2.4.18 minimum linux kernel for hppa, and add 
> > > > 	libc_cv_gcc_unwind_find_fde=yes.
> > > 
> > > This log entry is for a generated file, and there is no log entry for the
> > > actual source file.
> > 
> > I noticed this when I was fixing the gcc dw2 exception support.  Changing
> > it didn't seem to have any affect on the v3 or g++ testsuite results, but
> > it seems the correct thing to do.
> > 
> 
> Setting "libc_cv_gcc_unwind_find_fde=no" seems the correct thing to do?

That seems reasonable for gcc 3.0.4.  However, it may not matter.  With
gcc 3.3 and a slightly hacked glibc-2.2.5-14, I see the following in my
build log:

checking for DWARF2 unwind info support... (cached) no

This should be yes.  I haven't investigated why this is so.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: E Frank Ball <frankb@efball.com>
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On Tue, Oct 01, 2002 at 08:40:59PM -0700, Derek Engelhaupt wrote:
} Anyone using them?  I have a bunch of IBM DCHS-04F Ultrastar 2XP 4.3GB
} (got info from IBM's website about jumpers and tried them all) drives
} that I'm trying to get them to work but all they do is SCSI bus reset
} when Debian trys to load.  They are factory refurbed 50-pin SE disks
} and I have activated Autostart on them and active termination (tried it
} without too).  Anyway, they perform this way under HP-UX too.  Tried a
} 2GB HP drive and it works fine so the system SCSI bus is fine.  So,
} bottom line is anyone using NON-HP disks in thier systems?  Tried them
} in my E55, 712/60, and 712/100.  Have tried 2 different drives with the
} same result also.....

Most non-HP drives should work fine.  We use lots of Seagate Medalist
ST34520N drives in all the 700s.  We used to use some Quatums, and we've
used IBMs too, but I don't know the nubmers.

-- 

   E Frank Ball                frankb@efball.com


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I have been using non-HP firmware Seagate, Quantum, Toshiba and IBM drives (older 1GB though) in 712, 735 and C class. 

IIRC correctly I couldn't get a newer 4.3 GB IBM drive to work in a SS20, the drive is Ultra-SCSI and that somehow doesn't work with old controllers. May be the same problem in HPs,

	Christian 


On Tue, 1 Oct 2002 20:40:59 -0700 (PDT)
"Derek Engelhaupt" <derekengelhaupt@rocketmail.com> wrote:

> Anyone using them?  I have a bunch of IBM DCHS-04F Ultrastar 2XP 4.3GB
> (got info from IBM's website about jumpers and tried them all) drives
> that I'm trying to get them to work but all they do is SCSI bus reset
> when Debian trys to load.  They are factory refurbed 50-pin SE disks
> and I have activated Autostart on them and active termination (tried it
> without too).  Anyway, they perform this way under HP-UX too.  Tried a
> 2GB HP drive and it works fine so the system SCSI bus is fine.  So,
> bottom line is anyone using NON-HP disks in thier systems?  Tried them
> in my E55, 712/60, and 712/100.  Have tried 2 different drives with the
> same result also.....
> 
> derek
> 
> __________________________________________________
> Do you Yahoo!?
> New DSL Internet Access from SBC & Yahoo!
> http://sbc.yahoo.com
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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For 712's with the console path hacked to use the serial port, the 2.3
firmware provides an easy way to get the console back to graphics: hit
the [ESC]-key shortly after power-on.


On Mon, 2002-09-30 at 10:10, James Smith wrote:
> most of my 712's are ver 1.9 or 2.1 & they all work fine as far as i can
> see with linux - is there any advantage to updating to 2.3 ?
> 
> or is this a case of 'if its not broken....'




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On Tue, Oct 01, 2002 at 09:31:35AM +0200, Frank Cornelis wrote:
> I know, BOOTP booting also worked with me before the firmware patching.
> But anyway, upgrading never hurts and the HP/linux FAQ recommended it.

That's not true. Upgrades can fail. It's rare but it happens.
I wrote the FAQ entry and it also says:

| BEWARE: It's possible to kill a system by either upgrading the wrong
| firmware or the upgrade doesn't finish properly for any reason. Don't
| upgrade unless you have evidence of a PDC problem. Text files on the HP
| patch depot describe what was fixed in each revision since the machine
| model was released.

It's easy to download the wrong firmware to a machine.
My favorite example is installing 715/100 PDC on a 715/100XC (need a
"dagger" card and working 715/100XC to resurrect the dead 715/100XC).
I've done it and know of others who've done it. Sounds stupid but
it happens.

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:16369

Derek Engelhaupt wrote:

>Anyone using them?  I have a bunch of IBM DCHS-04F Ultrastar 2XP 4.3GB
>(got info from IBM's website about jumpers and tried them all) drives
>that I'm trying to get them to work but all they do is SCSI bus reset
>when Debian trys to load.  They are factory refurbed 50-pin SE disks
>and I have activated Autostart on them and active termination (tried it
>without too).  Anyway, they perform this way under HP-UX too.  Tried a
>2GB HP drive and it works fine so the system SCSI bus is fine.  So,
>bottom line is anyone using NON-HP disks in thier systems?  Tried them
>in my E55, 712/60, and 712/100.  Have tried 2 different drives with the
>same result also.....
>
>derek
>
>__________________________________________________
>Do you Yahoo!?
>New DSL Internet Access from SBC & Yahoo!
>http://sbc.yahoo.com
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
>  
>
Hello, I am using Quantum 9GB HDD 7200 SCSI on my K210/819 without problems
it's using old SCSI cable 50pins.




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--- Derek Engelhaupt <derekengelhaupt@rocketmail.com> wrote:
> Anyone using them?  I have a bunch of IBM DCHS-04F Ultrastar 2XP
> 4.3GB
> (got info from IBM's website about jumpers and tried them all) drives
> that I'm trying to get them to work but all they do is SCSI bus reset
> when Debian trys to load.  They are factory refurbed 50-pin SE disks
> and I have activated Autostart on them and active termination (tried
> it
> without too).  Anyway, they perform this way under HP-UX too.  Tried
> a
> 2GB HP drive and it works fine so the system SCSI bus is fine.  So,
> bottom line is anyone using NON-HP disks in thier systems?  Tried
> them
> in my E55, 712/60, and 712/100.  Have tried 2 different drives with
> the
> same result also.....
> 
> derek
> 
> 

Well, after screwing with it for another hour I finally got it to work.
 Appearantly I had to enable some "option block" on the drive to get it
to work as well as the Term Pwr on the drive.  My HP is the proud new
owner of a bunch of 4.3GB drives.  Now if I can only get the 9Gigers to
work now.... ;) Thanks for all the responses.

derek

__________________________________________________
Do you Yahoo!?
New DSL Internet Access from SBC & Yahoo!
http://sbc.yahoo.com


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--- Grant Grundler <grundler@dsl2.external.hp.com> wrote:
> On Tue, Oct 01, 2002 at 09:31:35AM +0200, Frank Cornelis wrote:
> > I know, BOOTP booting also worked with me before the firmware
> patching.
> > But anyway, upgrading never hurts and the HP/linux FAQ recommended
> it.
> 
> That's not true. Upgrades can fail. It's rare but it happens.
> I wrote the FAQ entry and it also says:
> 
> | BEWARE: It's possible to kill a system by either upgrading the
> wrong
> | firmware or the upgrade doesn't finish properly for any reason.
> Don't
> | upgrade unless you have evidence of a PDC problem. Text files on
> the HP
> | patch depot describe what was fixed in each revision since the
> machine
> | model was released.
> 
> It's easy to download the wrong firmware to a machine.
> My favorite example is installing 715/100 PDC on a 715/100XC (need a
> "dagger" card and working 715/100XC to resurrect the dead 715/100XC).
> I've done it and know of others who've done it. Sounds stupid but
> it happens.
> 
> grant


My C180 is actually using 6.3 (for the C200/240) firmware and not 6.1. 
All the official HP websites say 6.1 is the latest for the C180, but my
firmware cheat sheet that was sent to all of us hardware CE's says that
6.3 will work.  Haven't had any problems to date.  It also says that I
can't run more than 1.5GB of memory on my box, but I am.  I just loaded
the wrong firmware on a hard drive today....anyone want a paper weight?
 It's completely brain dead.  But Grant is right...doesn't take much to
kill a motherboard with a firmware update if it's not done properly.

derek

__________________________________________________
Do you Yahoo!?
New DSL Internet Access from SBC & Yahoo!
http://sbc.yahoo.com


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Hi,

Working on an endian neutral file reader, I bumped into sometihng strange with
gcc.

basically I got to read a 32 unsigned int from a file that is mmap'ed, I have
a unsigned char * that is supposed to be at the unsigned int addr but possibly
unaligned.

I have a macro defined like this, then allowing the unsigned int getter from
file to expression.

#define get_4(p) ( ((uint32)(*p++)<<24)| \
                   ((uint32)(*p++)<<16)| \
                   ((uint32)(*p++)<<8 )| \
                   ((uint32)(*p++)) )

It assume the given p is
unsigned char *p;
then produce an uint32 expression.

Now using this macro on hpux/hpc linux/i386 linux/hppa gives 3 different
result with the linux/hppa particularly wrong IMHO. I wonder if this funny
could endup in kernel bugs?

==============================================================
Here is my test prog, get2_4 is a workaround attempt...

typedef unsigned char uint8;
typedef unsigned int  uint32;

#define get_4(p) ( ((uint32)(*p++)<<24)| \
                   ((uint32)(*p++)<<16)| \
                   ((uint32)(*p++)<<8 )| \
                   ((uint32)(*p++)) )

#define get2_4(p) ( p+=4, ((uint32)(p[-4])<<24)| \
                          ((uint32)(p[-3])<<16)| \
                          ((uint32)(p[-2])<<8 )| \
                          ((uint32)(p[-1])) )
main()
{ uint32 i;
  uint8 *p;
  p="abcd"; printf("p=%#x ",p);
  i=get_4(p);
  printf("i=%#x p=%#x\n",i,p);
  p="abcd"; printf("p=%#x ",p);
  i=get2_4(p);
  printf("i=%#x p=%#x\n",i,p);
}

==============================================================
Results:

HPUX/HPC:
---------
$ ./c
p=0x40001028 i=0x61626364 p=0x4000102c
p=0x40001048 i=0x61626364 p=0x4000104c

In both case i is loaded with the integer "abcd" (as expected I would say) and
after the expression p is bumped by 4 that is for sure expected.
Note the bad const re-use, hpc use 2 different "abcd" one at 0x40001028 the
other at 0x40001048 (but that's not a problem, +Osomething would eventually
get it right)

LINUX/i386:
---------- 
(red-hat 6.2 then very old compiler, may be someone can try on a very last
gcc?)

$ ./c
p=0x8048500 i=0x61616161 p=0x8048504
p=0x8048500 i=0x61626364 p=0x8048504

Here get_4(p) don't compute the expression corectly IMHO, but yet purist will
claim that KnR sez that side effect expression can't rely on order of
evaluation (bad practice programing), yet I wonder how the parse tree look
like here.
So i is semi wrong/right and p is bumped by 4 after the expression that is
expected.

get2_4(p), got i computed correctly and p bumped by 4, this is the workaround
I would use for the time being.

LINUX/hppa:
-----------
GNU C version 3.0.2 (Debian)
hpfrcw12:/tmp# ./c
p=0x10734 i=0x61616161 p=0x10735
p=0x10734 i=0x61626364 p=0x10738

Here get_4(p) is plain dead, i isn't computed correctly but as before one can
argue it is ok, but the pointer bump is completly wrong, there are 4 ++, and
no matter how we order the expression, p must be bumped by 4 it is bumped by
1!!!

So beside the scholastic discusion about when ++ should occur, I fear a bug in
the compiler that may have ramification in our kernel?

What do you think?

=============================================================================

Challenge.

If someone can come with a better definition for get_4(p) i.e can force the ++
at correct place, I would grab, right now I use get2_4() that seems to be
portable.

Cheers,
Phi


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On Wed, Oct 02, 2002 at 09:30:03AM +0200, phi wrote:
> #define get_4(p) ( ((uint32)(*p++)<<24)| \
>                    ((uint32)(*p++)<<16)| \
>                    ((uint32)(*p++)<<8 )| \
>                    ((uint32)(*p++)) )

Undefined behaviour.  `|' is not a sequence point and you modify p more than
once.  How would this look?

#define get_4(p)	p += 4, (((uint32)p[-4] << 24) | \
			 ((uint32)p[-3] << 16) | \
			 ((uint32)p[-2] <<  8) | \
			 ((unit32)p[-1]))

comma _is_ a sequence point, so this is well-defined.

-- 
Revolutions do not require corporate support.


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Matthew Wilcox wrote:
> 
> 
> Undefined behaviour.  `|' is not a sequence point and you modify p more than
> once.  

Wouldn't be 'natural' to declare ++ a sequence point as well as comma is since
it has side effects, beside it would remove the sequence-point jazz in the
warning emits.

Right now the macro look like this for flawed/featured gcc.

#define get3_4(p) ({register uint32
t=(*p++)<<24;t+=(*p++)<<16,t+=(*p++)<<8,t+(*p++);})

Phi


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On Wed, Oct 02, 2002 at 03:01:32PM +0200, phi wrote:
> Wouldn't be 'natural' to declare ++ a sequence point as well as comma is since
> it has side effects, beside it would remove the sequence-point jazz in the
> warning emits.

*boggle*.  i suggest you get hold of a copy of the C spec or a good
book on the C programming language.  What you are doing is _explictly_
undefined by the specification.  The compiler is free to emit
whatever code it likes.  GCC doesn't warn for the fun of it, you know.
http://www.eskimo.com/~scs/C-faq/q3.1.html gives some more detail.

> Right now the macro look like this for flawed/featured gcc.
> 
> #define get3_4(p) ({register uint32
> t=(*p++)<<24;t+=(*p++)<<16,t+=(*p++)<<8,t+(*p++);})

i thought you were trying to write portable code; the ({ ... }) is a
gcc extension.

-- 
Revolutions do not require corporate support.


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On Wed, 2002-10-02 at 03:40, Ryan Bradetich wrote:
> I would like to request prelimiary approval from you that you intend to
> merge this driver into your tree, so I can request a valid device
> number from lanana.

parisc tree is Willy, not my business.



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On Wed, Oct 02, 2002 at 02:38:51PM +0100, Alan Cox wrote:
> On Wed, 2002-10-02 at 03:40, Ryan Bradetich wrote:
> > I would like to request prelimiary approval from you that you intend to
> > merge this driver into your tree, so I can request a valid device
> > number from lanana.
> 
> parisc tree is Willy, not my business.

Ah, but lanana doesn't take acceptance by me as sufficient to allocate a
new char major number.  It's you, Marcelo or Linus.

Since this device is PA-RISC specific, I thought we could perhaps use
char-major-11 as that's used for some SPARC-only device at present.

-- 
Revolutions do not require corporate support.


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On Wed, 2002-10-02 at 14:40, Matthew Wilcox wrote:
> On Wed, Oct 02, 2002 at 02:38:51PM +0100, Alan Cox wrote:
> > On Wed, 2002-10-02 at 03:40, Ryan Bradetich wrote:
> > > I would like to request prelimiary approval from you that you intend to
> > > merge this driver into your tree, so I can request a valid device
> > > number from lanana.
> > 
> > parisc tree is Willy, not my business.
> 
> Ah, but lanana doesn't take acceptance by me as sufficient to allocate a
> new char major number.  It's you, Marcelo or Linus.

I guess its Linus and 2.5 then. Im 2.2 maintainer



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i had a very similar problem - i'd like to know how to use em too

James S



On Tue, 2002-10-01 at 22:40, Derek Engelhaupt wrote:
> Anyone using them?  I have a bunch of IBM DCHS-04F Ultrastar 2XP 4.3GB
> (got info from IBM's website about jumpers and tried them all) drives
> that I'm trying to get them to work but all they do is SCSI bus reset
> when Debian trys to load.  They are factory refurbed 50-pin SE disks
> and I have activated Autostart on them and active termination (tried it
> without too).  Anyway, they perform this way under HP-UX too.  Tried a
> 2GB HP drive and it works fine so the system SCSI bus is fine.  So,
> bottom line is anyone using NON-HP disks in thier systems?  Tried them
> in my E55, 712/60, and 712/100.  Have tried 2 different drives with the
> same result also.....
> 
> derek
> 
> __________________________________________________
> Do you Yahoo!?
> New DSL Internet Access from SBC & Yahoo!
> http://sbc.yahoo.com
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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Okay - after a bit of downtime (due to houseguests being in the room with
the HP), I fired it back up to update things. Apt updated the system fine;
cvs updated the kernel from 2.4.18-pa59 to the latest -pa20 release
without errors. Recompiled using menuconfig (no errors), used make-kpkg to
create the kernel, then dpkg to install the generated .deb file (which
created all the links nicely, etc. Ran palo, which was happy, and
rebooted.

Now, the C180 runs headless, with a serial cable running to a Proliant
next to it so I can use minicom as a console if needed. After the reboot,
I couldn't ssh back in, so I checked the console, but minicom wouldn't
get a response. Power-cycled the HP, still no messages on console, no
errors on the LCDs, and eventually (several minutes) a heartbeat light.
Tried unplugging the serial cable, plugging in a keyboard/mouse/monitor
and rebooting again, but still nothing. With the monitor on, after power
on I do get a green signal light on the monitor, just no display. I tried
the "tab after powerup" to switch console settings, but nothing. According
to my C180 manual, having the monitor and keyboard on there should set the
monitor as console, while removing them should send console to ttyS0.

Anyone have any ideas how to rescue this, or what could have caused it?
It's running firmware 6.1, and has been for several months. There's no
error LEDs, no smell of smoke, no melted bits, and no actual response. I
tried switching off the UPS it's on and leaving it for an hour, but still
get the same lack of results. Minicom is set to 9600/8N1/VT100, which is
what worked last time I used the console this way...



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Message: 8
To: Gavin Hubbard <ghub005@xtra.co.nz>
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] WTS: workstation ram 
Date: Tue, 24 Sep 2002 10:58:43 -0600
From: Grant Grundler <grundler@dsl2.external.hp.com>

Gavin Hubbard wrote:
> I have twenty used A4994A modules. These are the 256MB, 120MHz SDRAM
> modules that work in the B1000, B2000, B2600, C3000, C3600, C3650, C3700,
> J5600, J6000, J6700, J7000 workstations. Please note that some of those
> systems require the modules to be added in pairs.

Will also work on A400 and A500 (ie rp24xx) boxes.
Possibly on L1000 and L2000 but don't know how picky PDC
is on those boxes.

grant

-------------------------------------------------

Quick follow-up; I installed an A4994A kit into a spare L1000 on Monday. It
booted HP-UX 11 with no problems.

Regards,

Gavin



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From: "B. Douglas Hilton" <bdhilton@charter.net>
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Subject: Re: [parisc-linux] C180 oddness
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If you did a "make-kpkg" kernel and then a "dpkg -i kernel-image-...."
then you should be able to do a palo boot modification of something
like kernel=/vmlinux.old or /boot/vmlinux.old, etc.

I generally always keep some old "proven" kernel around in /boot
and symlink it to something I can remember easily like /vmlinux-rescue
or such. A couple extra megs of space will is definately worth it.

Thats why PALO, or (in X86: GRUB) is great because you don't have
to monkey with LILO every time you recompile your kernel. Just copy
it into /boot and use your firmware (or GRUB) to boot directly, leaving
your already proven boot sector safe and secure.

If all else fails, use Debian HPPA CDRom Disk-1 to get in there and
see what your old kernel is saved as.

Good Luck!

- Doug



Tom wrote:
 > Okay - after a bit of downtime (due to houseguests being in the room with
 > the HP), I fired it back up to update things. Apt updated the system fine;
 > cvs updated the kernel from 2.4.18-pa59 to the latest -pa20 release
 > without errors. Recompiled using menuconfig (no errors), used make-kpkg to
 > create the kernel, then dpkg to install the generated .deb file (which
 > created all the links nicely, etc. Ran palo, which was happy, and
 > rebooted.
 >
 > Now, the C180 runs headless, with a serial cable running to a Proliant
 > next to it so I can use minicom as a console if needed. After the reboot,
 > I couldn't ssh back in, so I checked the console, but minicom wouldn't
 > get a response. Power-cycled the HP, still no messages on console, no
 > errors on the LCDs, and eventually (several minutes) a heartbeat light.
 > Tried unplugging the serial cable, plugging in a keyboard/mouse/monitor
 > and rebooting again, but still nothing. With the monitor on, after power
 > on I do get a green signal light on the monitor, just no display. I tried
 > the "tab after powerup" to switch console settings, but nothing. According
 > to my C180 manual, having the monitor and keyboard on there should set the
 > monitor as console, while removing them should send console to ttyS0.
 >
 > Anyone have any ideas how to rescue this, or what could have caused it?
 > It's running firmware 6.1, and has been for several months. There's no
 > error LEDs, no smell of smoke, no melted bits, and no actual response. I
 > tried switching off the UPS it's on and leaving it for an hour, but still
 > get the same lack of results. Minicom is set to 9600/8N1/VT100, which is
 > what worked last time I used the console this way...
 >
 > _______________________________________________
 > parisc-linux mailing list
 > parisc-linux@lists.parisc-linux.org
 > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
 >






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Tom wrote:
> I couldn't ssh back in, so I checked the console, but minicom wouldn't
> get a response. Power-cycled the HP, still no messages on console, no
> errors on the LCDs, and eventually (several minutes) a heartbeat light.
...
> Anyone have any ideas how to rescue this, or what could have caused it?

Just some thoughts:
o if ssh doesn't work, try ping. ping will give a clue how far into the
  initialization the kernel got.

o after cyclepower on a system configured to run console on serial port,
  not seeing PDC init messages on the serial port suggests a HW problem.

o try another serial cable or a different "client" to start ruling
  out issues with serial connection.

> but still
> get the same lack of results. Minicom is set to 9600/8N1/VT100, which is
> what worked last time I used the console this way...

settings are correct.


grant


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Subject: Re: [parisc-linux] C180 oddness
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Hi Tom,

On Wed, 2002-10-02 at 13:47, Tom wrote:
>
> the "tab after powerup" to switch console settings, but nothing. According
> to my C180 manual, having the monitor and keyboard on there should set the
> monitor as console, while removing them should send console to ttyS0.

If the console path in the PDC is explicitly set to one of the serial
ports, it will not automagically change back to graphics by connecting a
keyboard. The opposite is true, though: no/bad PS/2 keyboard, no/bad
graphics, or invalid PDC value (ie, graphics card moved/removed) & the
console will be directed to the first serial port.

Do the PS/2 keyboard LED's flash and Num_Lock LED light during POST?

Here's another suggestion: try removing all I/O cards, detaching all
disks, disconnecting the network, and removing all but 1 pair of SIMMs.

When you get the console back, you might want to enable "chassis codes" 
(to trace the POST codes) and disable "fast boot" (to get a better test
of RAM). I believe The service manual has a table which should be able
to give some indication of when the firmware chooses a console device.

http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManual&docIndexName=hardware+manuals&locale=en_US&prodTypeId=43563&prodSeriesId=44435&prodSeriesName=hp+Visualize+c180+workstation

BTW, one of the nice things about the Allegro/Forte/Duet (4-digit
B/C/Jxxxx, less J2240) systems is the LCD display which indicates where
the console has be directed.

Good Luck.





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	Hi
I'm loosing my nerves with iodc.....
I've found some interresting thing. For example, it is possible to obtain the HPA
of a modules directly by using a pdc call on PAT system. This one works fine:

struct device_path *dp
/* dp contain all needed informations */
memcpy(&mod,dp,sizeof(struct hardware_path));
pdc_status = mem_pdc_call( PDC_PAT_IO, PDC_PAT_IO_GET_PCI_CONFIG_FROM_HW, __pa(pdc_result), mod.num);

I've also succeded to retrive the ENTRY_INIT code. And I've double check that
this is truly an IODC code:
ret = mem_pdc_call(PDC_IODC, PDC_IODC_READ, __pa(pdc_result), hpa , 
       PDC_IODC_INDEX_DATA, __pa(iodc_module_info), iodc_data_size);
and then
ret = mem_pdc_call (PDC_IODC, PDC_IODC_READ, __pa(pdc_result), hpa,
       ENTRY_INIT, __pa(iodc_buffer_ptr), IODC_MAX, 0L, 0L, 0L, 0L, 0L);

-> I obtain the ENTRY_INIT iodc code in the ptr iodc_buffer_ptr.
this one has been reserved like this:
static unsigned long iodc_disk_buffer[IODC_MAX] __attribute__ ((aligned (8)));

Now I've really a problem. Each time I try to use this ENTRY_INIT code by using this call:
ret = real64_call(__pa(iodc_buffer_ptr),iodc_hpa, ENTRY_INIT_DEV,
                iodc_spa, __pa(dump_iodc_layer),__pa(pdc_result)); 

(I've also tried with real32_call, but it is exactly the same pb.)

it fail with HPMC !!!! I've analysed the HPMC and it has a problem while doing:
LDO             -64(r30),r29
LDO             20(r3),r2
LDB,O           0(r2),r17 -> HPMC

 
r29=ffffffffffffffff
r3=fffffffff8020000
r2=fffffffff8020014

(good news r3 is the base addr of my scsi card, sound good).
it is at offset iodc_buffer_ptr+0x1e3c
So it is inside the iodc code. It seems that it works on my
scsi card. But I don't have access to the firmware code. So if you have any idea, 
clue, anything, help !!!! I really think, that if I solve this pb, the dump will 
be shortly available.....

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
--------------9ABFDA84792DF67574837485
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From - Thu Nov 08 21:24:56 2018
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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [parisc-linux-cvs] linux varenet
Date: Thu, 03 Oct 2002 17:34:45 +0200
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Thibaut Varene wrote:
> CVSROOT:	/var/cvs
> Module name:	linux
> Changes by:	varenet	02/10/03 09:33:30
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: Makefile firmware.c power.c process.c 
> 	                    setup.c traps.c 
> 	arch/parisc/mm : init.c 
> 	include/asm-parisc: pdc.h 
> Added files:
> 	arch/parisc/kernel: pdc_chassis.c 
> 	include/asm-parisc: pdc_chassis.h 
> 
> Log message:
> Implemented LED Panel support (Run/Attn/Fault) for E-class and PDC_PAT boxes.
> Implemented GSP Logging facility for PDC_PAT boxes.
> 

These changes have been successfully tested so far on A500, B2600, B132 
and E35.

We don't know yet if there are other machines that features the same LED 
Panel than the E series.

HTH,

-- 
Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/

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diff -Nru -x CVS linux.orig-pa20/Makefile linux/Makefile
--- linux.orig-pa20/Makefile	2002-09-24 03:00:24.000000000 +0200
+++ linux/Makefile	2002-10-02 21:12:09.000000000 +0200
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 4
 SUBLEVEL = 19
-EXTRAVERSION = -pa20
+EXTRAVERSION = -pa21
 
 KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
 
diff -Nru -x CVS linux.orig-pa20/arch/parisc/kernel/Makefile linux/arch/parisc/kernel/Makefile
--- linux.orig-pa20/arch/parisc/kernel/Makefile	2002-07-05 00:41:50.000000000 +0200
+++ linux/arch/parisc/kernel/Makefile	2002-10-01 15:25:10.000000000 +0200
@@ -24,7 +24,7 @@
 		pa7300lc.o syscall.o entry.o sys_parisc.o firmware.o \
 		ptrace.o hardware.o inventory.o drivers.o semaphore.o \
 		signal.o hpmc.o real2.o parisc_ksyms.o unaligned.o \
-		processor.o power.o
+		processor.o power.o pdc_chassis.o
 
 export-objs	:= parisc_ksyms.o superio.o keyboard.o
 
diff -Nru -x CVS linux.orig-pa20/arch/parisc/kernel/firmware.c linux/arch/parisc/kernel/firmware.c
--- linux.orig-pa20/arch/parisc/kernel/firmware.c	2002-07-27 03:00:18.000000000 +0200
+++ linux/arch/parisc/kernel/firmware.c	2002-10-03 17:02:10.000000000 +0200
@@ -1,4 +1,4 @@
-/* arch/parisc/kernel/pdc.c  - safe pdc access routines
+/* arch/parisc/kernel/firmware.c  - safe pdc access routines
  *
  * Copyright 1999 SuSE GmbH Nuernberg (Philipp Rumpf, prumpf@tux.org)
  * portions Copyright 1999 The Puffin Group, (Alex deVries, David Kennedy)
@@ -177,6 +177,45 @@
 }
 
 /**
+ * pdc_pat_chassis_send_log - Sends a PDC PAT CHASSIS log message.
+ * @retval: -1 on error, 0 on success. Other value are PDC errors
+ *
+ * Must be correctly formatted or expect system crash
+ */
+#ifdef __LP64__
+int pdc_pat_chassis_send_log(unsigned long state, unsigned long data)
+{
+	if (!is_pdc_pat())
+		return -1;
+		
+	int retval = 0;
+	
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_PAT_CHASSIS_LOG, PDC_PAT_CHASSIS_WRITE_LOG, __pa(&state), __pa(&data));
+	spin_unlock_irq(&pdc_lock);
+	
+	return retval;
+}
+#endif
+
+/**
+ * pdc_chassis_disp - Updates display
+ * @retval: -1 on error, 0 on success
+ *
+ * Works on old PDC only (E class, others?)
+ */
+int pdc_chassis_disp(unsigned long disp)
+{
+	int retval = 0;
+
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_CHASSIS, PDC_CHASSIS_DISP, disp);
+	spin_unlock_irq(&pdc_lock);
+
+	return retval;
+}
+
+/**
  * pdc_coproc_cfg - To identify coprocessors attached to the processor.
  * @pdc_coproc_info: Return buffer address.
  *
diff -Nru -x CVS linux.orig-pa20/arch/parisc/kernel/pdc_chassis.c linux/arch/parisc/kernel/pdc_chassis.c
--- linux.orig-pa20/arch/parisc/kernel/pdc_chassis.c	1970-01-01 01:00:00.000000000 +0100
+++ linux/arch/parisc/kernel/pdc_chassis.c	2002-10-03 17:25:35.000000000 +0200
@@ -0,0 +1,204 @@
+/*
+ *		arch/parisc/kernel/pdc_chassis.c
+ *
+ * 		Copyright (C) 2002 Laurent Canet <canetl@esiee.fr>
+ *		Copyright (C) 2002 Thibaut Varene <varenet@esiee.fr>
+ *
+ *
+ *		This program is free software; you can redistribute it and/or modify
+ *		it under the terms of the GNU General Public License as published by
+ *		the Free Software Foundation; either version 2, or (at your option)
+ *		any later version.
+ *      
+ *		This program is distributed in the hope that it will be useful,
+ *		but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *		GNU General Public License for more details.
+ *      
+ *		You should have received a copy of the GNU General Public License
+ *		along with this program; if not, write to the Free Software
+ *		Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#undef PDC_CHASSIS_DEBUG
+#ifdef PDC_CHASSIS_DEBUG
+#define DPRINTK(fmt, args...)	printk(fmt, ## args)
+#else
+#define DPRINTK(fmt, args...)
+#endif
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/reboot.h>
+#include <linux/notifier.h>
+
+#include <asm/pdc_chassis.h>
+#include <asm/processor.h>
+
+static int pdc_chassis_old = 0;	
+
+
+/** 
+ * pdc_chassis_checkold() - Checks for old PDC_CHASSIS compatibility
+ * @pdc_chassis_old: 1 if old pdc chassis style
+ * 
+ * Currently, only E class is known to work with this
+ * Inspired by Christoph Plattner
+ */
+
+static void __init pdc_chassis_checkold(void)
+{
+	switch(CPU_HVERSION) {
+		case 0x480:		/* E25 */
+		case 0x481:		/* E35 */
+		case 0x482:		/* E45 */
+		case 0x483:		/* E55 */
+			pdc_chassis_old = 1;
+			break;
+
+		default:
+			break;
+	}
+	DPRINTK(KERN_DEBUG "pdc_chassis.c: pdc_chassis_checkold(); pdc_chassis_old = %d\n", pdc_chassis_old);
+}
+
+
+/**
+ * pdc_chassis_panic_event() - Called by the panic handler.
+ *
+ * As soon as a panic occurs, we should inform the PDC.
+ */
+
+static int pdc_chassis_panic_event(struct notifier_block *this,
+		        unsigned long event, void *ptr)
+{
+	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
+		return NOTIFY_DONE;
+}   
+
+
+static struct notifier_block pdc_chassis_panic_block = {
+	notifier_call: pdc_chassis_panic_event,
+	priority: INT_MAX,
+};
+
+
+/**
+ * parisc_reboot_event() - Called by the reboot handler.
+ *
+ * As soon as a reboot occurs, we should inform the PDC.
+ */
+
+static int pdc_chassis_reboot_event(struct notifier_block *this,
+		        unsigned long event, void *ptr)
+{
+	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
+		return NOTIFY_DONE;
+}   
+
+
+static struct notifier_block pdc_chassis_reboot_block = {
+	notifier_call: pdc_chassis_reboot_event,
+	priority: INT_MAX,
+};
+
+
+/**
+ * parisc_pdc_chassis_init() - Called at boot time.
+ */
+
+void __init parisc_pdc_chassis_init(void)
+{
+	DPRINTK(KERN_DEBUG "pdc_chassis.c: parisc_pdc_chassis_init()\n");
+
+	/* initialize panic notifier chain */
+	notifier_chain_register(&panic_notifier_list, &pdc_chassis_panic_block);
+
+	/* initialize reboot notifier chain */
+	register_reboot_notifier(&pdc_chassis_reboot_block);
+
+	/* Check for old LED Panel */
+	pdc_chassis_checkold();
+}
+
+
+/** 
+ * pdc_chassis_send_status() - Sends a predefined message to the chassis,
+ * and changes the front panel LEDs according to the new system state
+ * @retval: PDC call return value.
+ *
+ * Only machines with 64 bits PDC PAT and E-class are supported atm.
+ * 
+ * returns 0 if no error, -1 if no supported PDC is present or invalid message,
+ * else returns the appropriate PDC error code.
+ * 
+ * For a list of predefined messages, see asm-parisc/pdc_chassis.h
+ */
+
+int pdc_chassis_send_status(int message)
+{
+	/* Maybe we should do that in an other way ? */
+	int retval = 0;
+
+	DPRINTK(KERN_DEBUG "pdc_chassis.c: pdc_chassis_send_status(%d)\n", message);
+
+#ifdef __LP64__	/* pdc_pat_chassis_send_log is defined only when #ifdef __LP64__ */
+	if (is_pdc_pat()) {
+		switch(message) {
+			case PDC_CHASSIS_DIRECT_BSTART:
+				retval = pdc_pat_chassis_send_log(PDC_CHASSIS_PMSG_BSTART, PDC_CHASSIS_LSTATE_RUN_NORMAL);
+				break;
+			
+			case PDC_CHASSIS_DIRECT_BCOMPLETE:
+				retval = pdc_pat_chassis_send_log(PDC_CHASSIS_PMSG_BCOMPLETE, PDC_CHASSIS_LSTATE_RUN_NORMAL);
+				break;
+			
+			case PDC_CHASSIS_DIRECT_SHUTDOWN:
+				retval = pdc_pat_chassis_send_log(PDC_CHASSIS_PMSG_SHUTDOWN, PDC_CHASSIS_LSTATE_NONOS);
+				break;
+			
+			case PDC_CHASSIS_DIRECT_PANIC:
+				retval = pdc_pat_chassis_send_log(PDC_CHASSIS_PMSG_PANIC, PDC_CHASSIS_LSTATE_RUN_CRASHREC);
+				break;
+		
+			case PDC_CHASSIS_DIRECT_LPMC:
+				retval = pdc_pat_chassis_send_log(PDC_CHASSIS_PMSG_LPMC, PDC_CHASSIS_LSTATE_RUN_SYSINT);
+				break;
+
+			case PDC_CHASSIS_DIRECT_HPMC:
+				retval = pdc_pat_chassis_send_log(PDC_CHASSIS_PMSG_HPMC, PDC_CHASSIS_LSTATE_RUN_NCRIT);
+				break;
+
+			default:
+				retval = -1;
+		}
+	} else retval = -1;
+#else
+	if (pdc_chassis_old) {
+		switch (message) {
+			case PDC_CHASSIS_DIRECT_BSTART:
+			case PDC_CHASSIS_DIRECT_BCOMPLETE:
+				retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_RUN));
+				break;
+							
+			case PDC_CHASSIS_DIRECT_SHUTDOWN:
+				retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_SHUT));
+				break;
+			
+			case PDC_CHASSIS_DIRECT_HPMC:
+			case PDC_CHASSIS_DIRECT_PANIC:
+				retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_FLT));
+				break;
+		
+			case PDC_CHASSIS_DIRECT_LPMC:
+				retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_WARN));
+				break;
+
+			default:
+				retval = -1;
+		}
+	} else retval = -1;
+#endif
+		
+	return retval;
+}
diff -Nru -x CVS linux.orig-pa20/arch/parisc/kernel/power.c linux/arch/parisc/kernel/power.c
--- linux.orig-pa20/arch/parisc/kernel/power.c	2002-09-25 03:00:22.000000000 +0200
+++ linux/arch/parisc/kernel/power.c	2002-10-02 21:17:02.000000000 +0200
@@ -47,10 +47,10 @@
 
 #include <asm/gsc.h>
 #include <asm/pdc.h>
+#include <asm/pdc_chassis.h>
 #include <asm/irq.h>
 #include <asm/io.h>
 #include <asm/led.h>
-#include <asm/led.h>
 #include <asm/uaccess.h>
 
 
diff -Nru -x CVS linux.orig-pa20/arch/parisc/kernel/process.c linux/arch/parisc/kernel/process.c
--- linux.orig-pa20/arch/parisc/kernel/process.c	2002-06-27 23:34:44.000000000 +0200
+++ linux/arch/parisc/kernel/process.c	2002-10-02 21:18:20.000000000 +0200
@@ -27,6 +27,7 @@
 #include <linux/version.h>
 #include <linux/elf.h>
 #include <linux/personality.h>
+#include <linux/config.h>
 
 #include <asm/machdep.h>
 #include <asm/offset.h>
@@ -36,6 +37,7 @@
 #include <asm/io.h>
 #include <asm/gsc.h>
 #include <asm/processor.h>
+#include <asm/pdc_chassis.h>
 
 int hlt_counter;
 
@@ -118,6 +120,9 @@
 	/* "Normal" system reset */
 	pdc_do_reset();
 
+	/* set up a new led state on systems shipped with a LED State panel */
+	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
+	
 	/* Nope...box should reset with just CMD_RESET now */
 	gsc_writel(CMD_RESET, COMMAND_GLOBAL);
 
@@ -150,6 +155,8 @@
 	 * following call will immediately power off. */
 	pdc_soft_power_button(0);
 
+	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
+	
 	/* It seems we have no way to power the system off via
 	 * software. The user has to press the button himself. */
 
diff -Nru -x CVS linux.orig-pa20/arch/parisc/kernel/setup.c linux/arch/parisc/kernel/setup.c
--- linux.orig-pa20/arch/parisc/kernel/setup.c	2002-06-01 03:06:31.000000000 +0200
+++ linux/arch/parisc/kernel/setup.c	2002-10-02 21:18:59.000000000 +0200
@@ -41,6 +41,7 @@
 #include <asm/processor.h>
 #include <asm/pdc.h>
 #include <asm/led.h>
+#include <asm/pdc_chassis.h>
 #include <asm/machdep.h>	/* for pa7300lc_init() proto */
 
 #define COMMAND_LINE_SIZE 1024
@@ -283,6 +284,11 @@
 	parisc_init_resources();
 	do_device_inventory();                  /* probe for hardware */
 
+	parisc_pdc_chassis_init();
+
+	/* set up a new led state on systems shipped LED State panel */
+	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BSTART);
+	
 	processor_init();
 	printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
 			boot_cpu_data.cpu_count,
diff -Nru -x CVS linux.orig-pa20/arch/parisc/kernel/traps.c linux/arch/parisc/kernel/traps.c
--- linux.orig-pa20/arch/parisc/kernel/traps.c	2002-08-22 03:00:35.000000000 +0200
+++ linux/arch/parisc/kernel/traps.c	2002-10-02 21:19:58.000000000 +0200
@@ -34,6 +34,7 @@
 #include <asm/atomic.h>
 #include <asm/smp.h>
 #include <asm/pdc.h>
+#include <asm/pdc_chassis.h>
 
 #include "../math-emu/math-emu.h"	/* for handle_fpe() */
 
@@ -487,6 +488,10 @@
 
 	case  1:
 		/* High-priority machine check (HPMC) */
+
+		/* set up a new led state on systems shipped with a LED State panel */
+		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_HPMC);
+
 		parisc_terminate("High Priority Machine Check (HPMC)",
 				regs, code, 0);
 		/* NOT REACHED */
@@ -506,6 +511,9 @@
 
 	case  5:
 		/* Low-priority machine check */
+
+		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_LPMC);
+
 		flush_all_caches();
 		cpu_lpmc(5, regs);
 		return;
@@ -578,6 +586,9 @@
 	case 17:
 		/* Non-access data TLB miss fault/Non-access data page fault */
 		/* TODO: Still need to add slow path emulation code here */
+		
+		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
+
 		fault_address = regs->ior;
 		parisc_terminate("Non access data tlb fault!",regs,code,fault_address);
 
@@ -690,6 +701,9 @@
 			force_sig_info(SIGBUS, &si, current);
 			return;
 		}
+		
+		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
+
 		parisc_terminate("Unexpected interruption", regs, code, 0);
 		/* NOT REACHED */
 	}
@@ -718,8 +732,11 @@
 	     * The kernel should never fault on its own address space.
 	     */
 
-	    if (fault_space == 0)
-		    parisc_terminate("Kernel Fault", regs, code, fault_address);
+	    if (fault_space == 0) {
+		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
+
+		parisc_terminate("Kernel Fault", regs, code, fault_address);
+	    }
 	}
 
 #ifdef CONFIG_KWDB
diff -Nru -x CVS linux.orig-pa20/arch/parisc/mm/init.c linux/arch/parisc/mm/init.c
--- linux.orig-pa20/arch/parisc/mm/init.c	2002-05-29 17:11:36.000000000 +0200
+++ linux/arch/parisc/mm/init.c	2002-10-02 20:56:05.000000000 +0200
@@ -21,6 +21,7 @@
 
 #include <asm/pgalloc.h>
 #include <asm/tlb.h>
+#include <asm/pdc_chassis.h>
 
 mmu_gather_t mmu_gathers[NR_CPUS];
 
@@ -409,6 +410,9 @@
 	}
 
 	printk("%luk freed\n", (unsigned long)(&__init_end - &__init_begin) >> 10);
+
+	/* set up a new led state on systems shipped LED State panel */
+	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE);
 }
 
 /*
diff -Nru -x CVS linux.orig-pa20/include/asm-parisc/pdc.h linux/include/asm-parisc/pdc.h
--- linux.orig-pa20/include/asm-parisc/pdc.h	2002-09-04 03:01:13.000000000 +0200
+++ linux/include/asm-parisc/pdc.h	2002-10-03 17:17:16.000000000 +0200
@@ -476,7 +476,7 @@
 #define PDC_TYPE_SYSTEM_MAP	 1 /* 32-bit, but supports PDC_SYSTEM_MAP */
 #define PDC_TYPE_SNAKE		 2 /* Doesn't support SYSTEM_MAP */
 
-#define is_pdc_pat()    (pdc_type == PDC_TYPE_PAT)
+#define is_pdc_pat()	(pdc_type == PDC_TYPE_PAT)
 
 struct pdc_chassis_info {       /* for PDC_CHASSIS_INFO */
 	unsigned long actcnt;   /* actual number of bytes returned */
@@ -915,6 +915,7 @@
 
 int pdc_add_valid(unsigned long address);
 int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len);
+int pdc_chassis_disp(unsigned long disp);
 int pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info);
 int pdc_iodc_read(unsigned long *actcnt, unsigned long hpa, unsigned int index,
 		  void *iodc_data, unsigned int iodc_data_size);
@@ -961,6 +962,8 @@
                  unsigned long glob_cfg);
 
 #ifdef __LP64__
+int pdc_pat_chassis_send_log(unsigned long status, unsigned long data);
+
 int pdc_pat_cell_get_number(struct pdc_pat_cell_num *cell_info);
 int pdc_pat_cell_module(unsigned long *actcnt, unsigned long ploc, unsigned long mod,
 			unsigned long view_type, void *mem_addr);
diff -Nru -x CVS linux.orig-pa20/include/asm-parisc/pdc_chassis.h linux/include/asm-parisc/pdc_chassis.h
--- linux.orig-pa20/include/asm-parisc/pdc_chassis.h	1970-01-01 01:00:00.000000000 +0100
+++ linux/include/asm-parisc/pdc_chassis.h	2002-10-03 17:24:57.000000000 +0200
@@ -0,0 +1,382 @@
+/*
+ *		include/asm-parisc/pdc_chassis.h
+ *
+ *		Copyright (C) 2002 Laurent Canet <canetl@esiee.fr>
+ *		Copyright (C) 2002 Thibaut Varene <varenet@esiee.fr>
+ *
+ *
+ *      This program is free software; you can redistribute it and/or modify
+ *      it under the terms of the GNU General Public License as published by
+ *      the Free Software Foundation; either version 2, or (at your option)
+ *      any later version.
+ *      
+ *      This program is distributed in the hope that it will be useful,
+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *      GNU General Public License for more details.
+ *      
+ *      You should have received a copy of the GNU General Public License
+ *      along with this program; if not, write to the Free Software
+ *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *      TODO:	- handle processor number on SMP systems (Reporting Entity ID)
+ *      	- handle message ID
+ *      	- handle timestamps
+ */
+ 
+
+#ifndef _PARISC_PDC_CHASSIS_H
+#define _PARISC_PDC_CHASSIS_H
+
+/*
+ * ----------
+ * Prototypes
+ * ----------
+ */
+
+int pdc_chassis_send_status(int message);
+void __init parisc_pdc_chassis_init(void);
+
+
+/*
+ * -----------------
+ * Direct call names
+ * -----------------
+ * They setup everything for you, the Log message and the corresponding LED state
+ */
+
+#define PDC_CHASSIS_DIRECT_BSTART	0
+#define PDC_CHASSIS_DIRECT_BCOMPLETE	1
+#define PDC_CHASSIS_DIRECT_SHUTDOWN	2
+#define PDC_CHASSIS_DIRECT_PANIC	3
+#define PDC_CHASSIS_DIRECT_HPMC		4
+#define PDC_CHASSIS_DIRECT_LPMC		5
+#define PDC_CHASSIS_DIRECT_DUMP		6	/* not yet implemented */
+#define PDC_CHASSIS_DIRECT_OOPS		7	/* not yet implemented */
+
+
+/*
+ * ------------
+ * LEDs control
+ * ------------
+ * Set the three LEDs -- Run, Attn, and Fault.
+ */
+
+/* Old PDC LED control */
+#define PDC_CHASSIS_DISP_DATA(v)	((unsigned long)(v) << 17)
+
+/* 
+ * Available PDC PAT LED states
+ */
+
+#define PDC_CHASSIS_LED_RUN_OFF		(0ULL << 4)
+#define PDC_CHASSIS_LED_RUN_FLASH	(1ULL << 4)
+#define PDC_CHASSIS_LED_RUN_ON		(2ULL << 4)
+#define PDC_CHASSIS_LED_RUN_NC		(3ULL << 4)
+#define PDC_CHASSIS_LED_ATTN_OFF	(0ULL << 6)
+#define PDC_CHASSIS_LED_ATTN_FLASH	(1ULL << 6)
+#define PDC_CHASSIS_LED_ATTN_NC		(3ULL << 6)	/* ATTN ON is invalid */
+#define PDC_CHASSIS_LED_FAULT_OFF	(0ULL << 8)
+#define PDC_CHASSIS_LED_FAULT_FLASH	(1ULL << 8)
+#define PDC_CHASSIS_LED_FAULT_ON	(2ULL << 8)
+#define PDC_CHASSIS_LED_FAULT_NC	(3ULL << 8)
+#define PDC_CHASSIS_LED_VALID		(1ULL << 10)
+
+/* 
+ * Valid PDC PAT LED states combinations
+ */
+
+/* System running normally */
+#define PDC_CHASSIS_LSTATE_RUN_NORMAL	(PDC_CHASSIS_LED_RUN_ON		| \
+					 PDC_CHASSIS_LED_ATTN_OFF	| \
+					 PDC_CHASSIS_LED_FAULT_OFF	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* System crashed and rebooted itself successfully */
+#define PDC_CHASSIS_LSTATE_RUN_CRASHREC	(PDC_CHASSIS_LED_RUN_ON		| \
+					 PDC_CHASSIS_LED_ATTN_OFF	| \
+					 PDC_CHASSIS_LED_FAULT_FLASH	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* There was a system interruption that did not take the system down */
+#define PDC_CHASSIS_LSTATE_RUN_SYSINT	(PDC_CHASSIS_LED_RUN_ON		| \
+					 PDC_CHASSIS_LED_ATTN_FLASH	| \
+					 PDC_CHASSIS_LED_FAULT_OFF	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* System running and unexpected reboot or non-critical error detected */
+#define PDC_CHASSIS_LSTATE_RUN_NCRIT	(PDC_CHASSIS_LED_RUN_ON		| \
+					 PDC_CHASSIS_LED_ATTN_FLASH	| \
+					 PDC_CHASSIS_LED_FAULT_FLASH	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* Executing non-OS code */
+#define PDC_CHASSIS_LSTATE_NONOS	(PDC_CHASSIS_LED_RUN_FLASH	| \
+					 PDC_CHASSIS_LED_ATTN_OFF	| \
+					 PDC_CHASSIS_LED_FAULT_OFF	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* Boot failed - Executing non-OS code */
+#define PDC_CHASSIS_LSTATE_NONOS_BFAIL	(PDC_CHASSIS_LED_RUN_FLASH	| \
+					 PDC_CHASSIS_LED_ATTN_OFF	| \
+					 PDC_CHASSIS_LED_FAULT_ON	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* Unexpected reboot occured - Executing non-OS code */
+#define PDC_CHASSIS_LSTATE_NONOS_UNEXP	(PDC_CHASSIS_LED_RUN_FLASH	| \
+					 PDC_CHASSIS_LED_ATTN_OFF	| \
+					 PDC_CHASSIS_LED_FAULT_FLASH	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* Executing non-OS code - Non-critical error detected */
+#define PDC_CHASSIS_LSTATE_NONOS_NCRIT	(PDC_CHASSIS_LED_RUN_FLASH	| \
+					 PDC_CHASSIS_LED_ATTN_FLASH	| \
+					 PDC_CHASSIS_LED_FAULT_OFF	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* Boot failed - Executing non-OS code - Non-critical error detected */
+#define PDC_CHASSIS_LSTATE_BFAIL_NCRIT	(PDC_CHASSIS_LED_RUN_FLASH	| \
+					 PDC_CHASSIS_LED_ATTN_FLASH	| \
+					 PDC_CHASSIS_LED_FAULT_ON	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* Unexpected reboot/recovering - Executing non-OS code - Non-critical error detected */
+#define PDC_CHASSIS_LSTATE_UNEXP_NCRIT	(PDC_CHASSIS_LED_RUN_FLASH	| \
+					 PDC_CHASSIS_LED_ATTN_FLASH	| \
+					 PDC_CHASSIS_LED_FAULT_FLASH	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* Cannot execute PDC */
+#define PDC_CHASSIS_LSTATE_CANNOT_PDC	(PDC_CHASSIS_LED_RUN_OFF	| \
+					 PDC_CHASSIS_LED_ATTN_OFF	| \
+					 PDC_CHASSIS_LED_FAULT_OFF	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* Boot failed - OS not up - PDC has detected a failure that prevents boot */
+#define PDC_CHASSIS_LSTATE_FATAL_BFAIL	(PDC_CHASSIS_LED_RUN_OFF	| \
+					 PDC_CHASSIS_LED_ATTN_OFF	| \
+					 PDC_CHASSIS_LED_FAULT_ON	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* No code running - Non-critical error detected (double fault situation) */
+#define PDC_CHASSIS_LSTATE_NOCODE_NCRIT	(PDC_CHASSIS_LED_RUN_OFF	| \
+					 PDC_CHASSIS_LED_ATTN_FLASH	| \
+					 PDC_CHASSIS_LED_FAULT_OFF	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* Boot failed - OS not up - Fatal failure detected - Non-critical error detected */
+#define PDC_CHASSIS_LSTATE_FATAL_NCRIT	(PDC_CHASSIS_LED_RUN_OFF	| \
+					 PDC_CHASSIS_LED_ATTN_FLASH	| \
+					 PDC_CHASSIS_LED_FAULT_ON	| \
+					 PDC_CHASSIS_LED_VALID		)
+/* All other states are invalid */
+
+
+/*
+ * --------------
+ * PDC Log events
+ * --------------
+ * Here follows bits needed to fill up the log event sent to PDC_CHASSIS
+ * The log message contains: Alert level, Source, Source detail,
+ * Source ID, Problem detail, Caller activity, Activity status, 
+ * Caller subactivity, Reporting entity type, Reporting entity ID,
+ * Data type, Unique message ID and EOM. 
+ */
+
+/* Alert level */
+#define PDC_CHASSIS_ALERT_FORWARD	(0ULL << 36)	/* no failure detected */
+#define PDC_CHASSIS_ALERT_SERPROC	(1ULL << 36)	/* service proc - no failure */
+#define PDC_CHASSIS_ALERT_NURGENT	(2ULL << 36)	/* non-urgent operator attn */
+#define PDC_CHASSIS_ALERT_BLOCKED	(3ULL << 36)	/* system blocked */
+#define PDC_CHASSIS_ALERT_CONF_CHG	(4ULL << 36)	/* unexpected configuration change */
+#define PDC_CHASSIS_ALERT_ENV_PB	(5ULL << 36)	/* boot possible, environmental pb */
+#define PDC_CHASSIS_ALERT_PENDING	(6ULL << 36)	/* boot possible, pending failure */
+#define PDC_CHASSIS_ALERT_PERF_IMP	(8ULL << 36)	/* boot possible, performance impaired */
+#define PDC_CHASSIS_ALERT_FUNC_IMP	(10ULL << 36)	/* boot possible, functionality impaired */
+#define PDC_CHASSIS_ALERT_SOFT_FAIL	(12ULL << 36)	/* software failure */
+#define PDC_CHASSIS_ALERT_HANG		(13ULL << 36)	/* system hang */
+#define PDC_CHASSIS_ALERT_ENV_FATAL	(14ULL << 36)	/* fatal power or environmental pb */
+#define PDC_CHASSIS_ALERT_HW_FATAL	(15ULL << 36)	/* fatal hardware problem */
+
+/* Source */
+#define PDC_CHASSIS_SRC_NONE		(0ULL << 28)	/* unknown, no source stated */
+#define PDC_CHASSIS_SRC_PROC		(1ULL << 28)	/* processor */
+/* For later use ? */
+#define PDC_CHASSIS_SRC_PROC_CACHE	(2ULL << 28)	/* processor cache*/
+#define PDC_CHASSIS_SRC_PDH		(3ULL << 28)	/* processor dependent hardware */
+#define PDC_CHASSIS_SRC_PWR		(4ULL << 28)	/* power */
+#define PDC_CHASSIS_SRC_FAB		(5ULL << 28)	/* fabric connector */
+#define PDC_CHASSIS_SRC_PLATi		(6ULL << 28)	/* platform */
+#define PDC_CHASSIS_SRC_MEM		(7ULL << 28)	/* memory */
+#define PDC_CHASSIS_SRC_IO		(8ULL << 28)	/* I/O */
+#define PDC_CHASSIS_SRC_CELL		(9ULL << 28)	/* cell */
+#define PDC_CHASSIS_SRC_PD		(10ULL << 28)	/* protected domain */
+
+/* Source detail field */
+#define PDC_CHASSIS_SRC_D_PROC		(1ULL << 24)	/* processor general */
+
+/* Source ID - platform dependent */
+#define PDC_CHASSIS_SRC_ID_UNSPEC	(0ULL << 16)
+
+/* Problem detail - problem source dependent */
+#define PDC_CHASSIS_PB_D_PROC_NONE	(0ULL << 32)	/* no problem detail */
+#define PDC_CHASSIS_PB_D_PROC_TIMEOUT	(4ULL << 32)	/* timeout */
+
+/* Caller activity */
+#define PDC_CHASSIS_CALL_ACT_HPUX_BL	(7ULL << 12)	/* Boot Loader */
+#define PDC_CHASSIS_CALL_ACT_HPUX_PD	(8ULL << 12)	/* SAL_PD activities */
+#define PDC_CHASSIS_CALL_ACT_HPUX_EVENT	(9ULL << 12)	/* SAL_EVENTS activities */
+#define PDC_CHASSIS_CALL_ACT_HPUX_IO	(10ULL << 12)	/* SAL_IO activities */
+#define PDC_CHASSIS_CALL_ACT_HPUX_PANIC	(11ULL << 12)	/* System panic */
+#define PDC_CHASSIS_CALL_ACT_HPUX_INIT	(12ULL << 12)	/* System initialization */
+#define PDC_CHASSIS_CALL_ACT_HPUX_SHUT	(13ULL << 12)	/* System shutdown */
+#define PDC_CHASSIS_CALL_ACT_HPUX_WARN	(14ULL << 12)	/* System warning */
+#define PDC_CHASSIS_CALL_ACT_HPUX_DU	(15ULL << 12)	/* Display_Activity() update */
+
+/* Activity status - implementation dependent */
+#define PDC_CHASSIS_ACT_STATUS_UNSPEC	(0ULL << 0)
+
+/* Caller subactivity - implementation dependent */
+/* FIXME: other subactivities ? */
+#define PDC_CHASSIS_CALL_SACT_UNSPEC	(0ULL << 4)	/* implementation dependent */
+
+/* Reporting entity type */
+#define PDC_CHASSIS_RET_GENERICOS	(12ULL << 52)	/* generic OSes */
+#define PDC_CHASSIS_RET_IA64_NT		(13ULL << 52)	/* IA-64 NT */
+#define PDC_CHASSIS_RET_HPUX		(14ULL << 52)	/* HP-UX */
+#define PDC_CHASSIS_RET_DIAG		(15ULL << 52)	/* offline diagnostics & utilities */
+
+/* Reporting entity ID */
+#define PDC_CHASSIS_REID_UNSPEC		(0ULL << 44)
+
+/* Data type */
+#define PDC_CHASSIS_DT_NONE		(0ULL << 59)	/* data field unused */
+/* For later use ? Do we need these ? */
+#define PDC_CHASSIS_DT_PHYS_ADDR	(1ULL << 59)	/* physical address */
+#define PDC_CHASSIS_DT_DATA_EXPECT	(2ULL << 59)	/* expected data */
+#define PDC_CHASSIS_DT_ACTUAL		(3ULL << 59)	/* actual data */
+#define PDC_CHASSIS_DT_PHYS_LOC		(4ULL << 59)	/* physical location */
+#define PDC_CHASSIS_DT_PHYS_LOC_EXT	(5ULL << 59)	/* physical location extension */
+#define PDC_CHASSIS_DT_TAG		(6ULL << 59)	/* tag */
+#define PDC_CHASSIS_DT_SYNDROME		(7ULL << 59)	/* syndrome */
+#define PDC_CHASSIS_DT_CODE_ADDR	(8ULL << 59)	/* code address */
+#define PDC_CHASSIS_DT_ASCII_MSG	(9ULL << 59)	/* ascii message */
+#define PDC_CHASSIS_DT_POST		(10ULL << 59)	/* POST code */
+#define PDC_CHASSIS_DT_TIMESTAMP	(11ULL << 59)	/* timestamp */
+#define PDC_CHASSIS_DT_DEV_STAT		(12ULL << 59)	/* device status */
+#define PDC_CHASSIS_DT_DEV_TYPE		(13ULL << 59)	/* device type */
+#define PDC_CHASSIS_DT_PB_DET		(14ULL << 59)	/* problem detail */
+#define PDC_CHASSIS_DT_ACT_LEV		(15ULL << 59)	/* activity level/timeout */
+#define PDC_CHASSIS_DT_SER_NUM		(16ULL << 59)	/* serial number */
+#define PDC_CHASSIS_DT_REV_NUM		(17ULL << 59)	/* revision number */
+#define PDC_CHASSIS_DT_INTERRUPT	(18ULL << 59)	/* interruption information */
+#define PDC_CHASSIS_DT_TEST_NUM		(19ULL << 59)	/* test number */
+#define PDC_CHASSIS_DT_STATE_CHG	(20ULL << 59)	/* major changes in system state */
+#define PDC_CHASSIS_DT_PROC_DEALLOC	(21ULL << 59)	/* processor deallocate */
+#define PDC_CHASSIS_DT_RESET		(30ULL << 59)	/* reset type and cause */
+#define PDC_CHASSIS_DT_PA_LEGACY	(31ULL << 59)	/* legacy PA hex chassis code */
+
+/* System states - part of major changes in system state data field */
+#define PDC_CHASSIS_SYSTATE_BSTART	(0ULL << 0)	/* boot start */
+#define PDC_CHASSIS_SYSTATE_BCOMP	(1ULL << 0)	/* boot complete */
+#define PDC_CHASSIS_SYSTATE_CHANGE	(2ULL << 0)	/* major change */
+#define PDC_CHASSIS_SYSTATE_LED		(3ULL << 0)	/* LED change */
+#define PDC_CHASSIS_SYSTATE_PANIC	(9ULL << 0)	/* OS Panic */
+#define PDC_CHASSIS_SYSTATE_DUMP	(10ULL << 0)	/* memory dump */
+#define PDC_CHASSIS_SYSTATE_HPMC	(11ULL << 0)	/* processing HPMC */
+#define PDC_CHASSIS_SYSTATE_HALT	(15ULL << 0)	/* system halted */
+
+/* Message ID */
+#define PDC_CHASSIS_MSG_ID		(0ULL << 40)	/* we do not handle msg IDs atm */
+
+/* EOM - separates log entries */
+#define PDC_CHASSIS_EOM_CLEAR		(0ULL << 43)
+#define PDC_CHASSIS_EOM_SET		(1ULL << 43)
+
+/*
+ * Preformated well known messages
+ */
+
+/* Boot started */
+#define PDC_CHASSIS_PMSG_BSTART		(PDC_CHASSIS_ALERT_SERPROC	| \
+					 PDC_CHASSIS_SRC_PROC		| \
+					 PDC_CHASSIS_SRC_D_PROC		| \
+					 PDC_CHASSIS_SRC_ID_UNSPEC	| \
+					 PDC_CHASSIS_PB_D_PROC_NONE	| \
+					 PDC_CHASSIS_CALL_ACT_HPUX_INIT	| \
+					 PDC_CHASSIS_ACT_STATUS_UNSPEC	| \
+					 PDC_CHASSIS_CALL_SACT_UNSPEC	| \
+					 PDC_CHASSIS_RET_HPUX		| \
+					 PDC_CHASSIS_REID_UNSPEC	| \
+					 PDC_CHASSIS_DT_STATE_CHG	| \
+					 PDC_CHASSIS_SYSTATE_BSTART	| \
+					 PDC_CHASSIS_MSG_ID		| \
+					 PDC_CHASSIS_EOM_SET		)
+
+/* Boot complete */
+#define PDC_CHASSIS_PMSG_BCOMPLETE	(PDC_CHASSIS_ALERT_SERPROC	| \
+					 PDC_CHASSIS_SRC_PROC		| \
+					 PDC_CHASSIS_SRC_D_PROC		| \
+					 PDC_CHASSIS_SRC_ID_UNSPEC	| \
+					 PDC_CHASSIS_PB_D_PROC_NONE	| \
+					 PDC_CHASSIS_CALL_ACT_HPUX_INIT	| \
+					 PDC_CHASSIS_ACT_STATUS_UNSPEC	| \
+					 PDC_CHASSIS_CALL_SACT_UNSPEC	| \
+					 PDC_CHASSIS_RET_HPUX		| \
+					 PDC_CHASSIS_REID_UNSPEC	| \
+					 PDC_CHASSIS_DT_STATE_CHG	| \
+					 PDC_CHASSIS_SYSTATE_BCOMP	| \
+					 PDC_CHASSIS_MSG_ID		| \
+					 PDC_CHASSIS_EOM_SET		)
+
+/* Shutdown */
+#define PDC_CHASSIS_PMSG_SHUTDOWN	(PDC_CHASSIS_ALERT_SERPROC	| \
+					 PDC_CHASSIS_SRC_PROC		| \
+					 PDC_CHASSIS_SRC_D_PROC		| \
+					 PDC_CHASSIS_SRC_ID_UNSPEC	| \
+					 PDC_CHASSIS_PB_D_PROC_NONE	| \
+					 PDC_CHASSIS_CALL_ACT_HPUX_SHUT	| \
+					 PDC_CHASSIS_ACT_STATUS_UNSPEC	| \
+					 PDC_CHASSIS_CALL_SACT_UNSPEC	| \
+					 PDC_CHASSIS_RET_HPUX		| \
+					 PDC_CHASSIS_REID_UNSPEC	| \
+					 PDC_CHASSIS_DT_STATE_CHG	| \
+					 PDC_CHASSIS_SYSTATE_HALT	| \
+					 PDC_CHASSIS_MSG_ID		| \
+					 PDC_CHASSIS_EOM_SET		)
+
+/* Panic */
+#define PDC_CHASSIS_PMSG_PANIC		(PDC_CHASSIS_ALERT_SOFT_FAIL	| \
+					 PDC_CHASSIS_SRC_PROC		| \
+					 PDC_CHASSIS_SRC_D_PROC		| \
+					 PDC_CHASSIS_SRC_ID_UNSPEC	| \
+					 PDC_CHASSIS_PB_D_PROC_NONE	| \
+					 PDC_CHASSIS_CALL_ACT_HPUX_PANIC| \
+					 PDC_CHASSIS_ACT_STATUS_UNSPEC	| \
+					 PDC_CHASSIS_CALL_SACT_UNSPEC	| \
+					 PDC_CHASSIS_RET_HPUX		| \
+					 PDC_CHASSIS_REID_UNSPEC	| \
+					 PDC_CHASSIS_DT_STATE_CHG	| \
+					 PDC_CHASSIS_SYSTATE_PANIC	| \
+					 PDC_CHASSIS_MSG_ID		| \
+					 PDC_CHASSIS_EOM_SET		)
+
+// FIXME: extrapolated data
+/* HPMC */
+#define PDC_CHASSIS_PMSG_HPMC		(PDC_CHASSIS_ALERT_CONF_CHG /*?*/	| \
+					 PDC_CHASSIS_SRC_PROC		| \
+					 PDC_CHASSIS_SRC_D_PROC		| \
+					 PDC_CHASSIS_SRC_ID_UNSPEC	| \
+					 PDC_CHASSIS_PB_D_PROC_NONE	| \
+					 PDC_CHASSIS_CALL_ACT_HPUX_WARN	| \
+					 PDC_CHASSIS_RET_HPUX		| \
+					 PDC_CHASSIS_DT_STATE_CHG	| \
+					 PDC_CHASSIS_SYSTATE_HPMC	| \
+					 PDC_CHASSIS_MSG_ID		| \
+					 PDC_CHASSIS_EOM_SET		)
+
+/* LPMC */
+#define PDC_CHASSIS_PMSG_LPMC		(PDC_CHASSIS_ALERT_BLOCKED /*?*/| \
+					 PDC_CHASSIS_SRC_PROC		| \
+					 PDC_CHASSIS_SRC_D_PROC		| \
+					 PDC_CHASSIS_SRC_ID_UNSPEC	| \
+					 PDC_CHASSIS_PB_D_PROC_NONE	| \
+					 PDC_CHASSIS_CALL_ACT_HPUX_WARN	| \
+					 PDC_CHASSIS_ACT_STATUS_UNSPEC	| \
+					 PDC_CHASSIS_CALL_SACT_UNSPEC	| \
+					 PDC_CHASSIS_RET_HPUX		| \
+					 PDC_CHASSIS_REID_UNSPEC	| \
+					 PDC_CHASSIS_DT_STATE_CHG	| \
+					 PDC_CHASSIS_SYSTATE_CHANGE	| \
+					 PDC_CHASSIS_MSG_ID		| \
+					 PDC_CHASSIS_EOM_SET		)
+
+#endif /* _PARISC_PDC_CHASSIS_H */
+/* vim: set ts=8 */

--------------050007030408050205010406--




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From: Gyepi SAM <gyepi@praxis-sw.com>
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Subject: [parisc-linux] machine access
Date: Thu, 3 Oct 2002 15:44:46 -0400
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I am trying to debug some alignment issues for bogofilter (http://bogofilter.sf.net)
and wonder if someone on the list would allow me ssh access to an hppa machine.

The problem is on a 32bit 712, but other types may well work.

I would prefer one with gcc installed.

Ideally, I would really like to a semi-permanent account for testing, but a temporary one will do too.

Thanks.

-Gyepi Sam

-- 
To build may have to be the slow and laborious task of years. To destroy can be the thoughtless act of a single day.
	--Winston Churchill  


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From: Joel.soete@freebel.net
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Subject: [parisc-linux] Need help to improve uaccess.h patch
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Hi all,

With evms-1.2.0, I test following draft of uaccess.h.

Can somebody have a close look on this code to make it relevant for all
(I not sure of exception condition (ie segv) because I do not find any way
to stress it and do not find usage of get_user_asm_64)?

Thanks in advance for attention and futher help,
    Joel


########
--- uaccess.h.orig	2002-10-04 10:23:59.000000000 +0200
+++ uaccess.h	2002-10-04 17:07:54.000000000 +0200
@@ -35,10 +35,15 @@
 #define get_user __get_user
 
 #if BITS_PER_LONG == 32
-#define LDD_KERNEL(ptr)		BUG()
-#define LDD_USER(ptr)		BUG()
-#define STD_KERNEL(x, ptr)	BUG()
-#define STD_USER(x, ptr)	BUG()
+
+#define LDD_KERNEL(x, ptr) __get_kernel_asm_64(x, ptr)
+
+#define LDD_USER(x, ptr) __get_user_asm_64(x, ptr)
+
+#define STD_KERNEL(x, ptr) __put_kernel_asm_64(x, ptr)
+
+#define STD_USER(x, ptr) __put_user_asm_64(x, ptr)
+
 #else
 #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
 #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
@@ -68,27 +73,28 @@
 ({                                                      \
 	register long __gu_err __asm__ ("r8") = 0;      \
 	register long __gu_val __asm__ ("r9") = 0;      \
+                                                        \
+        unsigned int __tmp = 0;                         \
 							\
 	if (segment_eq(get_fs(),KERNEL_DS)) {           \
 	    switch (sizeof(*(ptr))) {                   \
-	    case 1: __get_kernel_asm("ldb",ptr); break; \
-	    case 2: __get_kernel_asm("ldh",ptr); break; \
-	    case 4: __get_kernel_asm("ldw",ptr); break; \
-	    case 8: LDD_KERNEL(ptr); break;		\
+	    case 1: __get_kernel_asm("ldb",x, ptr); break; \
+	    case 2: __get_kernel_asm("ldh",x, ptr); break; \
+	    case 4: __get_kernel_asm("ldw",x, ptr); break; \
+	    case 8: LDD_KERNEL(x, ptr); break;		\
 	    default: BUG(); break;                      \
 	    }                                           \
 	}                                               \
 	else {                                          \
 	    switch (sizeof(*(ptr))) {                   \
-	    case 1: __get_user_asm("ldb",ptr); break;   \
-	    case 2: __get_user_asm("ldh",ptr); break;   \
-	    case 4: __get_user_asm("ldw",ptr); break;   \
-	    case 8: LDD_USER(ptr);  break;		\
+	    case 1: __get_user_asm("ldb",x, ptr); break;   \
+	    case 2: __get_user_asm("ldh",x, ptr); break;   \
+	    case 4: __get_user_asm("ldw",x, ptr); break;   \
+	    case 8: LDD_USER(x, ptr);  break;		\
 	    default: BUG(); break;                      \
 	    }                                           \
 	}                                               \
 							\
-	(x) = (__typeof__(*(ptr))) __gu_val;            \
 	__gu_err;                                       \
 })
 
@@ -113,7 +119,7 @@
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err));
 #else
-#define __get_kernel_asm(ldx,ptr)                       \
+#define __get_kernel_asm(ldx,x, ptr)                    \
 	__asm__("\n1:\t" ldx "\t0(%2),%0\n"             \
 		"2:\n"					\
 		"\t.section __ex_table,\"a\"\n"         \
@@ -121,9 +127,25 @@
 		 "\t.word\t(2b-1b)+3\n"                 \
 		 "\t.previous"                          \
 		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err));
+		: "r"(ptr), "1"(__gu_err));             \
+	(x) = (__typeof__(*(ptr))) __gu_val;
 
-#define __get_user_asm(ldx,ptr)                         \
+#define __get_kernel_asm_64(x, ptr)                         \
+        __asm__ ("\n\tldw\t4(%1),%3\n"                      \
+                 "1:\tstw\t%3,4(%2)\n"                      \
+                 "\tldw\t0(%1),%3\n"                        \
+                 "2:\tstw\t%3,0(%2)\n"                      \
+                "3:\n"                                      \
+                "\t.section __ex_table,\"a\"\n"             \
+                 "\t.word\t1b\n"                            \
+                 "\t.word\t(3b-1b)+1\n"                     \
+                 "\t.word\t2b\n"                            \
+                 "\t.word\t(3b-2b)+1\n"                     \
+                 "\t.previous"                              \
+                : "=r"(__gu_err)                            \
+                : "r"(ptr), "r"(&(x)), "r"(__tmp), "0"(__gu_err));
+
+#define __get_user_asm(ldx,x, ptr)                      \
 	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
 		"2:\n"					\
 		"\t.section __ex_table,\"a\"\n"         \
@@ -131,19 +153,38 @@
 		 "\t.word\t(2b-1b)+3\n"                 \
 		 "\t.previous"                          \
 		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err));
+		: "r"(ptr), "1"(__gu_err));             \
+	(x) = (__typeof__(*(ptr))) __gu_val;
+
+#define __get_user_asm_64(x, ptr)                           \
+        __asm__ ("\n\tldw\t4(%%sr3,%1),%3\n"                \
+                 "1:\tstw\t%3,4(%2)\n"                      \
+                 "\tldw\t0(%%sr3,%1),%3\n"                  \
+                 "2:\tstw\t%3,0(%2)\n"                      \
+                "3:\n"                                      \
+                "\t.section __ex_table,\"a\"\n"             \
+                 "\t.word\t1b\n"                            \
+                 "\t.word\t(3b-1b)+1\n"                     \
+                 "\t.word\t2b\n"                            \
+                 "\t.word\t(3b-2b)+1\n"                     \
+                 "\t.previous"                              \
+                : "=r"(__gu_err)                            \
+                : "r"(ptr), "r"(&(x)), "r"(__tmp), "0"(__gu_err));
+
 #endif
 
 #define __put_user(x,ptr)                                       \
 ({								\
 	register long __pu_err __asm__ ("r8") = 0;		\
+        unsigned long long X = (unsigned long long) x;          \
+        unsigned long long * __tmp = 0;                         \
 								\
 	if (segment_eq(get_fs(),KERNEL_DS)) {                   \
 	    switch (sizeof(*(ptr))) {                           \
 	    case 1: __put_kernel_asm("stb",x,ptr); break;       \
 	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
 	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
-	    case 8: STD_KERNEL(x,ptr); break;			\
+	    case 8: STD_KERNEL(X,ptr); break;			\
 	    default: BUG(); break;                              \
 	    }                                                   \
 	}                                                       \
@@ -152,7 +193,7 @@
 	    case 1: __put_user_asm("stb",x,ptr); break;         \
 	    case 2: __put_user_asm("sth",x,ptr); break;         \
 	    case 4: __put_user_asm("stw",x,ptr); break;         \
-	    case 8: STD_USER(x,ptr); break;			\
+	    case 8: STD_USER(X,ptr); break;			\
 	    default: BUG(); break;                              \
 	    }                                                   \
 	}                                                       \
@@ -200,6 +241,22 @@
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
 
+#define __put_kernel_asm_64(X, ptr)                           \
+	__asm__ __volatile__ (                              \
+		"\n\tldw\t0(%2),%3\n"                       \
+		"1:\tstw\t%3,0(%1)\n"                 \
+		"\tldw\t4(%2),%3\n"		            \
+		"2:\tstw\t%3,4(%1)\n"                 \
+		"3:\n"					    \
+		"\t.section __ex_table,\"a\"\n"             \
+		 "\t.word\t1b\n"                            \
+		 "\t.word\t(3b-1b)+1\n"                     \
+		 "\t.word\t2b\n"                            \
+		 "\t.word\t(3b-2b)+1\n"                     \
+		 "\t.previous"                              \
+		: "=r"(__pu_err)                            \
+		: "r"(ptr), "r"(&(X)), "r"(__tmp), "0"(__pu_err))
+
 #define __put_user_asm(stx,x,ptr)                           \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
@@ -210,6 +267,23 @@
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
+
+#define __put_user_asm_64(X, ptr)                           \
+	__asm__ __volatile__ (                              \
+		"\n\tldw\t0(%2),%3\n"                       \
+		"1:\tstw\t%3,0(%%sr3,%1)\n"                 \
+		"\tldw\t4(%2),%3\n"		            \
+		"2:\tstw\t%3,4(%%sr3,%1)\n"                 \
+		"3:\n"					    \
+		"\t.section __ex_table,\"a\"\n"             \
+		 "\t.word\t1b\n"                            \
+		 "\t.word\t(3b-1b)+1\n"                     \
+		 "\t.word\t2b\n"                            \
+		 "\t.word\t(3b-2b)+1\n"                     \
+		 "\t.previous"                              \
+		: "=r"(__pu_err)                            \
+		: "r"(ptr), "r"(&(X)), "r"(__tmp), "0"(__pu_err))
+
 #endif
#########


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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Need help to improve uaccess.h patch
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Note: i haven't tested the patch, just some first-pass comments:

>  #else
>  #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
>  #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
> @@ -68,27 +73,28 @@
>  ({                                                      \
>  	register long __gu_err __asm__ ("r8") = 0;      \
>  	register long __gu_val __asm__ ("r9") = 0;      \
> +                                                        \
> +        unsigned int __tmp = 0;                         \
>  							\
>  	if (segment_eq(get_fs(),KERNEL_DS)) {           \
>  	    switch (sizeof(*(ptr))) {                   \
> -	    case 1: __get_kernel_asm("ldb",ptr); break; \
> -	    case 2: __get_kernel_asm("ldh",ptr); break; \
> -	    case 4: __get_kernel_asm("ldw",ptr); break; \
> -	    case 8: LDD_KERNEL(ptr); break;		\
> +	    case 1: __get_kernel_asm("ldb",x, ptr); break; \
> +	    case 2: __get_kernel_asm("ldh",x, ptr); break; \
> +	    case 4: __get_kernel_asm("ldw",x, ptr); break; \
> +	    case 8: LDD_KERNEL(x, ptr); break;		\
>  	    default: BUG(); break;                      \
>  	    }                                           \
>  	}                                               \
>  	else {                                          \
>  	    switch (sizeof(*(ptr))) {                   \
> -	    case 1: __get_user_asm("ldb",ptr); break;   \
> -	    case 2: __get_user_asm("ldh",ptr); break;   \
> -	    case 4: __get_user_asm("ldw",ptr); break;   \
> -	    case 8: LDD_USER(ptr);  break;		\
> +	    case 1: __get_user_asm("ldb",x, ptr); break;   \
> +	    case 2: __get_user_asm("ldh",x, ptr); break;   \
> +	    case 4: __get_user_asm("ldw",x, ptr); break;   \
> +	    case 8: LDD_USER(x, ptr);  break;		\
>  	    default: BUG(); break;                      \
>  	    }                                           \
>  	}                                               \
>  							\
> -	(x) = (__typeof__(*(ptr))) __gu_val;            \
>  	__gu_err;                                       \
>  })

why did you push the cast into the asm functions?

> -#define __get_user_asm(ldx,ptr)                         \
> +#define __get_kernel_asm_64(x, ptr)                         \
> +        __asm__ ("\n\tldw\t4(%1),%3\n"                      \
> +                 "1:\tstw\t%3,4(%2)\n"                      \
> +                 "\tldw\t0(%1),%3\n"                        \
> +                 "2:\tstw\t%3,0(%2)\n"                      \
> +                "3:\n"                                      \
> +                "\t.section __ex_table,\"a\"\n"             \
> +                 "\t.word\t1b\n"                            \
> +                 "\t.word\t(3b-1b)+1\n"                     \
> +                 "\t.word\t2b\n"                            \
> +                 "\t.word\t(3b-2b)+1\n"                     \

what's with the +1?

>  #define __put_user(x,ptr)                                       \
>  ({								\
>  	register long __pu_err __asm__ ("r8") = 0;		\
> +        unsigned long long X = (unsigned long long) x;          \

why do you need this cast?

> +        unsigned long long * __tmp = 0;                         \

if __tmp is only used in the STD macro, you should eiter pass it to the
macro or define it inside that macro.

>  	if (segment_eq(get_fs(),KERNEL_DS)) {                   \
>  	    switch (sizeof(*(ptr))) {                           \
>  	    case 1: __put_kernel_asm("stb",x,ptr); break;       \
>  	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
>  	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
> -	    case 8: STD_KERNEL(x,ptr); break;			\
> +	    case 8: STD_KERNEL(X,ptr); break;			\
>  	    default: BUG(); break;                              \
>  	    }                                                   \
>  	}                                                       \
> @@ -152,7 +193,7 @@
>  	    case 1: __put_user_asm("stb",x,ptr); break;         \
>  	    case 2: __put_user_asm("sth",x,ptr); break;         \
>  	    case 4: __put_user_asm("stw",x,ptr); break;         \
> -	    case 8: STD_USER(x,ptr); break;			\
> +	    case 8: STD_USER(X,ptr); break;			\
>  	    default: BUG(); break;                              \
>  	    }                                                   \
>  	}                                                       \
> @@ -200,6 +241,22 @@
>  		: "=r"(__pu_err)                            \
>  		: "r"(ptr), "r"(x), "0"(__pu_err))
>  
> +#define __put_kernel_asm_64(X, ptr)                           \
> +	__asm__ __volatile__ (                              \
> +		"\n\tldw\t0(%2),%3\n"                       \
> +		"1:\tstw\t%3,0(%1)\n"                 \
> +		"\tldw\t4(%2),%3\n"		            \
> +		"2:\tstw\t%3,4(%1)\n"                 \
> +		"3:\n"					    \
> +		"\t.section __ex_table,\"a\"\n"             \
> +		 "\t.word\t1b\n"                            \
> +		 "\t.word\t(3b-1b)+1\n"                     \
> +		 "\t.word\t2b\n"                            \
> +		 "\t.word\t(3b-2b)+1\n"                     \

as above, why +1?

> +		 "\t.previous"                              \
> +		: "=r"(__pu_err)                            \
> +		: "r"(ptr), "r"(&(X)), "r"(__tmp), "0"(__pu_err))
> +
>  #define __put_user_asm(stx,x,ptr)                           \
>  	__asm__ __volatile__ (                              \
>  		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
> @@ -210,6 +267,23 @@
>  		 "\t.previous"                              \
>  		: "=r"(__pu_err)                            \
>  		: "r"(ptr), "r"(x), "0"(__pu_err))
> +
> +#define __put_user_asm_64(X, ptr)                           \
> +	__asm__ __volatile__ (                              \
> +		"\n\tldw\t0(%2),%3\n"                       \
> +		"1:\tstw\t%3,0(%%sr3,%1)\n"                 \
> +		"\tldw\t4(%2),%3\n"		            \
> +		"2:\tstw\t%3,4(%%sr3,%1)\n"                 \
> +		"3:\n"					    \
> +		"\t.section __ex_table,\"a\"\n"             \
> +		 "\t.word\t1b\n"                            \
> +		 "\t.word\t(3b-1b)+1\n"                     \
> +		 "\t.word\t2b\n"                            \
> +		 "\t.word\t(3b-2b)+1\n"                     \

ditto, this probably should be +3 to indicate a userspace address.

your code also creates an artifact that may or may not be ok -- if you
do a 64-bit put_user or get_user on a 32-bit aligned address, this will
work with a 32-bit kernel but will trap on a 64-bit kernel. i guess
that's ok, but just something to keep in mind.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi All,

I got this from the final link of my application.

/usr/bin/ld: can not size stub section: Bad value
/usr/bin/ld: BFD 2.12.90.0.14 20020627 Debian GNU/Linux internal error,
aborting
 at ../../bfd/elf32-hppa.c line 4124 in elf32_hppa_relocate_section

/usr/bin/ld: Please report this bug.



Is this a bug or faq today?

It is while building a tiny prog linked with shared lib, 'may be' this as to
do with the way the shared libs are build i.e short pic vs long pic?

Thanx in advance?
Phi


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> /usr/bin/ld: can not size stub section: Bad value
> /usr/bin/ld: BFD 2.12.90.0.14 20020627 Debian GNU/Linux internal error,

I presume that you are using debian gcc 3.0.4.  There are known problems with
branches.  This error is usually caused by a call branch being too far from
the start of the module, or function if using -ffunction-sections.
Compiling with gcc 3.2 or later may help.

> Is this a bug or faq today?

Both.  There are still some problems in this area that haven't been resolved.
However, the situation is better in 3.2 than 3.0.4.  kde30/Qt is one package
where there are still problems.

> It is while building a tiny prog linked with shared lib, 'may be' this as to
> do with the way the shared libs are build i.e short pic vs long pic?

I can't remember offhand when this was changed but there is no difference
between short and long pic in 3.2 and later.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] Need help to improve uaccess.h patch
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Randolph Chung wrote:
> Note: i haven't tested the patch, just some first-pass comments:
> 
> 
>> #else
>> #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
>> #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
>>@@ -68,27 +73,28 @@
>> ({                                                      \
>> 	register long __gu_err __asm__ ("r8") = 0;      \
>> 	register long __gu_val __asm__ ("r9") = 0;      \
>>+                                                        \
>>+        unsigned int __tmp = 0;                         \
>> 							\
>> 	if (segment_eq(get_fs(),KERNEL_DS)) {           \
>> 	    switch (sizeof(*(ptr))) {                   \
>>-	    case 1: __get_kernel_asm("ldb",ptr); break; \
>>-	    case 2: __get_kernel_asm("ldh",ptr); break; \
>>-	    case 4: __get_kernel_asm("ldw",ptr); break; \
>>-	    case 8: LDD_KERNEL(ptr); break;		\
>>+	    case 1: __get_kernel_asm("ldb",x, ptr); break; \
>>+	    case 2: __get_kernel_asm("ldh",x, ptr); break; \
>>+	    case 4: __get_kernel_asm("ldw",x, ptr); break; \
>>+	    case 8: LDD_KERNEL(x, ptr); break;		\
>> 	    default: BUG(); break;                      \
>> 	    }                                           \
>> 	}                                               \
>> 	else {                                          \
>> 	    switch (sizeof(*(ptr))) {                   \
>>-	    case 1: __get_user_asm("ldb",ptr); break;   \
>>-	    case 2: __get_user_asm("ldh",ptr); break;   \
>>-	    case 4: __get_user_asm("ldw",ptr); break;   \
>>-	    case 8: LDD_USER(ptr);  break;		\
>>+	    case 1: __get_user_asm("ldb",x, ptr); break;   \
>>+	    case 2: __get_user_asm("ldh",x, ptr); break;   \
>>+	    case 4: __get_user_asm("ldw",x, ptr); break;   \
>>+	    case 8: LDD_USER(x, ptr);  break;		\
>> 	    default: BUG(); break;                      \
>> 	    }                                           \
>> 	}                                               \
>> 							\
>>-	(x) = (__typeof__(*(ptr))) __gu_val;            \
>> 	__gu_err;                                       \
>> })
> 
> 
> why did you push the cast into the asm functions?
> 
Not actualy in the asm but well in the std #define __get_user_asm just 
after asm, because with gcc-3.0.4 I do not find any way to access (in 
__asm extension) the two integer part of a long long (which C allow). So 
I try (as better as I can) to use ptr and this cast does not seems 
anymore usefull in 64bit parts.

[Well, in mips 32 bits uaccess.h, I see that some prefix as D, M, L can 
be used to do this access. But if I test those one (example %D1) with 
hppa, gcc asks me send a bug report. I think that I would have to do it 
to improve gcc-3.3?]

> 
>>-#define __get_user_asm(ldx,ptr)                         \
>>+#define __get_kernel_asm_64(x, ptr)                         \
>>+        __asm__ ("\n\tldw\t4(%1),%3\n"                      \
>>+                 "1:\tstw\t%3,4(%2)\n"                      \
>>+                 "\tldw\t0(%1),%3\n"                        \
>>+                 "2:\tstw\t%3,0(%2)\n"                      \
>>+                "3:\n"                                      \
>>+                "\t.section __ex_table,\"a\"\n"             \
>>+                 "\t.word\t1b\n"                            \
>>+                 "\t.word\t(3b-1b)+1\n"                     \
>>+                 "\t.word\t2b\n"                            \
>>+                 "\t.word\t(3b-2b)+1\n"                     \
> 
> 
> what's with the +1?

That is my main doubt :(
In this uaccess.h, I read (but i am not quit sure to have understand all 
  fine aspect) that we have to 'jump' after the erronious code (for me 
3b-[12]b + 1 ? am i wrong? ). And understand +3 in get_user_asm because 
we would have to jump after the cast "(x) = (__typeof__(*(ptr))) 
__gu_val;". Is it wrong?

> 
> 
>> #define __put_user(x,ptr)                                       \
>> ({								\
>> 	register long __pu_err __asm__ ("r8") = 0;		\
>>+        unsigned long long X = (unsigned long long) x;          \
> 
> 
> why do you need this cast?

I need in fact to assigned x to X because I encounter put_user(0,PTR) 
(which became later .. (&0)... which is wrong). And the cast is just to 
avoid anoying warning if x is not a long long.

> 
> 
>>+        unsigned long long * __tmp = 0;                         \
> 
> 
> if __tmp is only used in the STD macro, you should eiter pass it to the
> macro or define it inside that macro.
> 
> 
>> 	if (segment_eq(get_fs(),KERNEL_DS)) {                   \
>> 	    switch (sizeof(*(ptr))) {                           \
>> 	    case 1: __put_kernel_asm("stb",x,ptr); break;       \
>> 	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
>> 	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
>>-	    case 8: STD_KERNEL(x,ptr); break;			\
>>+	    case 8: STD_KERNEL(X,ptr); break;			\
>> 	    default: BUG(); break;                              \
>> 	    }                                                   \
>> 	}                                                       \
>>@@ -152,7 +193,7 @@
>> 	    case 1: __put_user_asm("stb",x,ptr); break;         \
>> 	    case 2: __put_user_asm("sth",x,ptr); break;         \
>> 	    case 4: __put_user_asm("stw",x,ptr); break;         \
>>-	    case 8: STD_USER(x,ptr); break;			\
>>+	    case 8: STD_USER(X,ptr); break;			\
>> 	    default: BUG(); break;                              \
>> 	    }                                                   \
>> 	}                                                       \
>>@@ -200,6 +241,22 @@
>> 		: "=r"(__pu_err)                            \
>> 		: "r"(ptr), "r"(x), "0"(__pu_err))
>> 
>>+#define __put_kernel_asm_64(X, ptr)                           \
>>+	__asm__ __volatile__ (                              \
>>+		"\n\tldw\t0(%2),%3\n"                       \
>>+		"1:\tstw\t%3,0(%1)\n"                 \
>>+		"\tldw\t4(%2),%3\n"		            \
>>+		"2:\tstw\t%3,4(%1)\n"                 \
>>+		"3:\n"					    \
>>+		"\t.section __ex_table,\"a\"\n"             \
>>+		 "\t.word\t1b\n"                            \
>>+		 "\t.word\t(3b-1b)+1\n"                     \
>>+		 "\t.word\t2b\n"                            \
>>+		 "\t.word\t(3b-2b)+1\n"                     \
> 
> 
> as above, why +1?

As early mentionned I do not well understand the original +1 (or +3) in 
the original put_user (get_user) and use what I think to have understand 
  (which seems to be wrong :( )

> 
> 
>>+		 "\t.previous"                              \
>>+		: "=r"(__pu_err)                            \
>>+		: "r"(ptr), "r"(&(X)), "r"(__tmp), "0"(__pu_err))
>>+
>> #define __put_user_asm(stx,x,ptr)                           \
>> 	__asm__ __volatile__ (                              \
>> 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
>>@@ -210,6 +267,23 @@
>> 		 "\t.previous"                              \
>> 		: "=r"(__pu_err)                            \
>> 		: "r"(ptr), "r"(x), "0"(__pu_err))
>>+
>>+#define __put_user_asm_64(X, ptr)                           \
>>+	__asm__ __volatile__ (                              \
>>+		"\n\tldw\t0(%2),%3\n"                       \
>>+		"1:\tstw\t%3,0(%%sr3,%1)\n"                 \
>>+		"\tldw\t4(%2),%3\n"		            \
>>+		"2:\tstw\t%3,4(%%sr3,%1)\n"                 \
>>+		"3:\n"					    \
>>+		"\t.section __ex_table,\"a\"\n"             \
>>+		 "\t.word\t1b\n"                            \
>>+		 "\t.word\t(3b-1b)+1\n"                     \
>>+		 "\t.word\t2b\n"                            \
>>+		 "\t.word\t(3b-2b)+1\n"                     \
> 
> 
> ditto, this probably should be +3 to indicate a userspace address.

Ok (I do not have the oppotunity to test this patch in wrong conditions 
ie segv :(, I would so much), I have to analyse in more details 
exception table handler to try to better understand this.

> 
> your code also creates an artifact that may or may not be ok -- if you
> do a 64-bit put_user or get_user on a 32-bit aligned address, this will
> work with a 32-bit kernel but will trap on a 64-bit kernel. i guess
> that's ok, but just something to keep in mind.

IMHO the absolute solution would be, to have in 32bits a pseudo ldd asm 
extension which do the actual 64bits processor ldd job. Don't you think so?

[as %D1, I also test ldd with a gcc 32bits but it also ask me to send a 
bug report. What do you thing? would I have to report this one (I doubt 
: it is not an actual pa1.1 code but more a dream of mine)?]

Thanks a lot for your kind attention and relevant remarks,

	Joel




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> >>+                "\t.section __ex_table,\"a\"\n"             \
> >>+                 "\t.word\t1b\n"                            \
> >>+                 "\t.word\t(3b-1b)+1\n"                     \
> >>+                 "\t.word\t2b\n"                            \
> >>+                 "\t.word\t(3b-2b)+1\n"                     \
> > 
> > 
> > what's with the +1?
> 
> That is my main doubt :(
> In this uaccess.h, I read (but i am not quit sure to have understand all 
>   fine aspect) that we have to 'jump' after the erronious code (for me 
> 3b-[12]b + 1 ? am i wrong? ). And understand +3 in get_user_asm because 
> we would have to jump after the cast "(x) = (__typeof__(*(ptr))) 
> __gu_val;". Is it wrong?

I may be wrong but I think the code is trying to build a PLABEL.  In
which case, the value should be 2 or 3.  The least significant bit is
not used.  See the runtime architecture manual for more info on PLABELs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Xref: news.gmane.org gmane.linux.ports.parisc:16394

> > That is my main doubt :(
> > In this uaccess.h, I read (but i am not quit sure to have understand all 
> >   fine aspect) that we have to 'jump' after the erronious code (for me 
> > 3b-[12]b + 1 ? am i wrong? ). And understand +3 in get_user_asm because 
> > we would have to jump after the cast "(x) = (__typeof__(*(ptr))) 
> > __gu_val;". Is it wrong?
> 
> I may be wrong but I think the code is trying to build a PLABEL.  In
> which case, the value should be 2 or 3.  The least significant bit is
> not used.  See the runtime architecture manual for more info on PLABELs.

nah, the comment says:

/*
 * The exception table contains two values: the first is an address
 * for an instruction that is allowed to fault, and the second is
 * the number of bytes to skip if a fault occurs. We also support in
 * two bit flags: 0x2 tells the exception handler to clear register
 * r9 and 0x1 tells the exception handler to put -EFAULT in r8.
 * This allows us to handle the simple cases for put_user and
 * get_user without having to have .fixup sections.
 */

struct exception_table_entry {
        unsigned long addr;  /* address of insn that is allowed to fault.   */
        long skip;           /* pcoq skip | r9 clear flag | r8 -EFAULT flag */
};

so let's take __get_user() ...

#define __get_user(x,ptr)                               \
({                                                      \
        register long __gu_err __asm__ ("r8") = 0;      \
        register long __gu_val __asm__ ("r9") = 0;      \
        [...]
        if (segment_eq(get_fs(),KERNEL_DS)) {           \
            switch (sizeof(*(ptr))) {                   \
            case 1: __get_kernel_asm("ldb",ptr); break; \
            case 2: __get_kernel_asm("ldh",ptr); break; \
            case 4: __get_kernel_asm("ldw",ptr); break; \
            case 8: LDD_KERNEL(ptr); break;             \
            default: BUG(); break;                      \
            }                                           \
        }                                               \
        (x) = (__typeof__(*(ptr))) __gu_val;            \
        __gu_err;                                       \
})

iow, at the end of __get_user, x == r9, and the return value is r8

so, if the extable says:
                "\t.section __ex_table,\"a\"\n"         \
                 "\t.word\t1b\n"                        \
                 "\t.word\t(2b-1b)+3\n"                 \
                 "\t.previous"                          \

this means that:
if the insn at label 1 faults, handle the fault (see
arch/parisc/mm/fault.c) and then continue at 
label1+((label2-label1)&~3) == label2; also, since the lowest 2 bits are
set (+3), set r9 = 0 and r8 = -EFAULT --> get_user will set x = 0 and
return -EFAULT

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: [parisc-linux] New cross-compilers available
Date: Sun, 6 Oct 2002 02:10:19 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:16395

Hi all !

This short mail to tell you that there are various new
cross compilers targetting hppa-linux and hppa64-linux
available here:

http://pateam.esiee.fr/download.html#deb

They come in different flavours, such as ppc-linux, sparc-solaris,
i386-freebsd and others.
They all feature binutils 2.13 and gcc 3.0.4

Any comment or suggestion are welcomed.

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/



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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: [parisc-linux] SANE "just works"
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Xref: news.gmane.org gmane.linux.ports.parisc:16396

Hi all,

I had a chance to hook up a very old HP ScanJet IIcx (8-bit color, scsi)
scanner to my C3000 and it "just worked". Used GIMP to clean up a scratched
photo of my daughter from 1997 and overall was amazed it all worked.
Only needed to "apt-get install sane gimp" and then read the Intro
pages at:
	http://www.mostang.com/sane/lj98/

Only problem (that I don't have any data for) is gimp perpetually
segfaulting after I exited. The image I edited was properly saved.
"kill -9" stopped the segfaulting.

Just need to find a better scanner now...8-bit color isn't anywhere
near satisfactory.

grant


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From: Peter Karsmakers <peter.karsmakers@khk.be>
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Subject: [parisc-linux] Can't start X-windows on HP C240 with HP FX4 graphics card ?
Date: Mon, 07 Oct 2002 12:55:40 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:16397

Hi,

I have a HP visualize C240 with a FX4 graphics card.  I've mananged to 
install linux parisc but can't get the X windows to work.  Is my graphics 
adapter supported?

The following output is dumped on the screen when I give the xstart command.

Thanks,

Peter Karsmakers


debianC240:~# startx

warning: process set to nice value 0 instead of -10 as requested

This is a pre-release version of XFree86, and is not supported in any
way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
please check the latest version in the XFree86 CVS repository
(http://www.XFree86.Org/cvs)

XFree86 Version 4.1.0.1 / X Window System
(protocol Version 11, revision 0, vendor release 6510)
Release Date: 21 December 2001
         If the server is older than 6-12 months, or if your card is
         newer than the above date, look for a newer version before
         reporting problems.  (See http://www.XFree86.Org/FAQ)
Build Operating System: Linux 2.4.16-64 parisc64 [ELF]
(==) Log file: "/var/log/XFree86.0.log", Time: Fri Oct  4 16:46:28 2002
(==) Using config file: "/etc/X11/XF86Config-4"
Markers: (--) probed, (**) from config file, (==) default setting,
          (++) from command line, (!!) notice, (II) informational,
          (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) ServerLayout "Default Layout"
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "compaq qvision"
(**) |   |-->Device "HP 4FX"
(**) |-->Input Device "Generic Keyboard"
(**) XKB: rules: "xfree86"
(**) XKB: model: "pc104"
(**) XKB: layout: "us"
(**) |-->Input Device "Configured Mouse"
(**) |-->Input Device "Generic Mouse"
(WW) The directory "/usr/lib/X11/fonts/cyrillic" does not exist.
         Entry deleted from font path.
(**) FontPath set to 
"unix/:7100,/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts/100d
pi/:unscaled,/usr/lib/X11/fonts/75dpi/:unscaled,/usr/lib/X11/fonts/Type1,/usr/li
b/X11/fonts/Speedo,/usr/lib/X11/fonts/100dpi,/usr/lib/X11/fonts/75dpi"
(==) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(--) using VT number 7

(--) PCI: (1:4:0) HP unknown chipset (0x1008) rev 2, Mem @ 0xf6000000/25, 
BIOS @
  0xf1e00000/21
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
         mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
(II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,
         pm2, pm, 300sx, 500tx, mx, delta
(II) S3VIRGE: driver (version 1.6.13) for S3 ViRGE chipsets: virge, 86C325,
         virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
         86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
         trio 3d/2x, 86C362, 86C368
(II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
         SIS300, SIS630, SIS540
(II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
         Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
         Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
         TwisterK
(II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, cyber9388,
         cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
         tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
         providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
         cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
         cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
         ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
         ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
         3dfx Voodoo3, 3dfx Voodoo5
(II) FBDev: driver for framebuffer: fbdev, afb
(II) ATI: ATI driver (version 6.3.6) for chipsets: ati
(II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
         ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
         ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
         ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
         ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
         ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
         ATI Rage 128 Mobility ML (AGP)
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
         ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
         ATI Radeon VE (AGP)
(II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,
         imstt3d
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) v4l driver for Video4Linux
(EE) No devices detected.

Fatal server error:
no screens found

When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to submit@bugs.debian.org.

XIO:  fatal IO error 232 (Connection reset by peer) on X server ":0.0"
       after 0 requests (0 known processed) with 0 events remaining.




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Oct  7 14:26:02 obzor kernel: KERNEL: assertion
(!skb_queue_empty(&sk->write_queue)) failed at tcp_timer.c(327)
Oct  7 14:26:02 obzor kernel: WARNING! Stack pointer and cr30 do not
correspond!Oct  7 14:26:02 obzor kernel: Dumping virtual address stack
instead
Oct  7 14:26:02 obzor kernel:
Oct  7 14:26:02 obzor kernel: Dumping Stack from 0x204c8000 to 0x204c8c40:
Oct  7 14:26:02 obzor kernel: 8000 25504446 2d312e32 0a25e2e3 cfd30d0a
31203020
6f626a0a 3c3c0a2f 41757468

can anyone explain the problem?

Regards




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Hi All,

May be its a FAQ, I tried to browse the mailing list archive but didn't find
anything.

I got te very last palinux source, did the various method (oldconfig,
menuconfig), then make dep and make vlinux.

When I reboot the latest build kernel on my C180 it got up to

........
Segment 0 load 00100000 size 1819636 mediaptr 0x1000
Segment 1 load 002be000 size 264864 mediaptr 0x1be000
Segment 2 load 00300000 size 401768 mediaptr 0x1ff000
Segment 3 load 00364000 size 8192 mediaptr 0x262000
Segment 4 load 00368000 size 32768 mediaptr 0x264000
Segment 5 load 003900b0 size 92624 mediaptr 0x26c0b0
Branching to kernel entry point 0x00100258.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org


Then it hang there for about 15 minutes (or was it 30 didn't noted), then it
proceed successfully

Linux version 2.4.19-pa21 (phi@iws1pb02) (gcc version 3.0.4) #3 Mon Oct 7
11:44:
59 CEST 2002
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
......



When I reboot again but ask PALO to use vmlinux.prev (my prev kernel don't
know how to make another one likethis one) the micro hang is less than a
minute.

Is there something I should do to get booted faster?

Thanx in advance,
Phi


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Subject: [parisc-linux] ksoftirqd eats 100% cpu :-(
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Hello list,

I use Debian 3.0 on an HP9000/710. Almost all works fine, but the 
ksoftirqd eats all cpu time. I read that it's a bug in the kernel. Is 
there a patch for fixing this problem?


Best regards, Tilo



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Subject: Re: [parisc-linux] ksoftirqd eats 100% cpu :-(
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Tilo Riemer wrote:
> Hello list,
> 
> I use Debian 3.0 on an HP9000/710. Almost all works fine, but the 
> ksoftirqd eats all cpu time. I read that it's a bug in the kernel. Is 
> there a patch for fixing this problem?
It's a well known bug. on 7x0 and 7x5 boxes.

Maybe we should add a faq entry ?


-- 
Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Subject: Re: [parisc-linux] Need help to improve uaccess.h patch
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	"John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Randolph Chung wrote:
>>>That is my main doubt :(
>>>In this uaccess.h, I read (but i am not quit sure to have understand all

>>>  fine aspect) that we have to 'jump' after the erronious code (for me

>>>3b-[12]b + 1 ? am i wrong? ). And understand +3 in get_user_asm because

>>>we would have to jump after the cast "(x) = (__typeof__(*(ptr))) 
>>>__gu_val;". Is it wrong?
>>
>>I may be wrong but I think the code is trying to build a PLABEL.  In
>>which case, the value should be 2 or 3.  The least significant bit is
>>not used.  See the runtime architecture manual for more info on PLABELs.
> 
> 
> nah, the comment says:
> 
> /*
>  * The exception table contains two values: the first is an address
>  * for an instruction that is allowed to fault, and the second is
>  * the number of bytes to skip if a fault occurs. We also support in
>  * two bit flags: 0x2 tells the exception handler to clear register
>  * r9 and 0x1 tells the exception handler to put -EFAULT in r8.
>  * This allows us to handle the simple cases for put_user and
>  * get_user without having to have .fixup sections.
>  */

But may I any way use a .fixup section (I do not find any usage of a .fixup
section in parisc code). Even lusercopy.S do not use it (just a kind of)?

> 
> struct exception_table_entry {
>         unsigned long addr;  /* address of insn that is allowed to fault.
  */
>         long skip;           /* pcoq skip | r9 clear flag | r8 -EFAULT
flag */
> };
> 
> so let's take __get_user() ...
> 
> #define __get_user(x,ptr)                               \
> ({                                                      \
>         register long __gu_err __asm__ ("r8") = 0;      \
>         register long __gu_val __asm__ ("r9") = 0;      \
>         [...]

Well in the case of a 64bits int, I could not use only one "r9" register.
May I used a third register: "r10" for instance?

>         }                                               \
>         (x) = (__typeof__(*(ptr))) __gu_val;            \
>         __gu_err;                                       \
> })
> 
> iow, at the end of __get_user, x == r9, and the return value is r8
> 
> so, if the extable says:
>                 "\t.section __ex_table,\"a\"\n"         \
>                  "\t.word\t1b\n"                        \
>                  "\t.word\t(2b-1b)+3\n"                 \
>                  "\t.previous"                          \
> 
> this means that:
> if the insn at label 1 faults, handle the fault (see
> arch/parisc/mm/fault.c) and then continue at 
> label1+((label2-label1)&~3) == label2; also, since the lowest 2 bits are
> set (+3), set r9 = 0 and r8 = -EFAULT --> get_user will set x = 0 and
> return -EFAULT
> 
Thanks a lot for all of your understand and help,
    Joel



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Subject: Re: [parisc-linux] Can't start X-windows on HP C240 with HP FX4 graphics 
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Hi,

the FX? Cards are unsupported at the moment. However, if I understand
correctly, there has been a port for x86 linux at times of kernel
2.2.16. I am not a kernel hacker, but I would like to know if there is a
possibility to port the beta quality  driver from 
http://www.hp.com/workstations/support/software/drivers/linux/video/fxvideo/
to current kernels.


Berthold

Peter Karsmakers wrote:
> 
> Hi,
> 
> I have a HP visualize C240 with a FX4 graphics card.  I've mananged to
> install linux parisc but can't get the X windows to work.  Is my graphics
> adapter supported?
> 
> The following output is dumped on the screen when I give the xstart command.
> 
> Thanks,
> 
> Peter Karsmakers
> 
> debianC240:~# startx
> 
> warning: process set to nice value 0 instead of -10 as requested
> 
> This is a pre-release version of XFree86, and is not supported in any
> way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
> to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
> please check the latest version in the XFree86 CVS repository
> (http://www.XFree86.Org/cvs)
> 
> XFree86 Version 4.1.0.1 / X Window System
> (protocol Version 11, revision 0, vendor release 6510)
> Release Date: 21 December 2001
>          If the server is older than 6-12 months, or if your card is
>          newer than the above date, look for a newer version before
>          reporting problems.  (See http://www.XFree86.Org/FAQ)
> Build Operating System: Linux 2.4.16-64 parisc64 [ELF]
> (==) Log file: "/var/log/XFree86.0.log", Time: Fri Oct  4 16:46:28 2002
> (==) Using config file: "/etc/X11/XF86Config-4"
> Markers: (--) probed, (**) from config file, (==) default setting,
>           (++) from command line, (!!) notice, (II) informational,
>           (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> (==) ServerLayout "Default Layout"
> (**) |-->Screen "Default Screen" (0)
> (**) |   |-->Monitor "compaq qvision"
> (**) |   |-->Device "HP 4FX"
> (**) |-->Input Device "Generic Keyboard"
> (**) XKB: rules: "xfree86"
> (**) XKB: model: "pc104"
> (**) XKB: layout: "us"
> (**) |-->Input Device "Configured Mouse"
> (**) |-->Input Device "Generic Mouse"
> (WW) The directory "/usr/lib/X11/fonts/cyrillic" does not exist.
>          Entry deleted from font path.
> (**) FontPath set to
> "unix/:7100,/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts/100d
> pi/:unscaled,/usr/lib/X11/fonts/75dpi/:unscaled,/usr/lib/X11/fonts/Type1,/usr/li
> b/X11/fonts/Speedo,/usr/lib/X11/fonts/100dpi,/usr/lib/X11/fonts/75dpi"
> (==) RgbPath set to "/usr/X11R6/lib/X11/rgb"
> (--) using VT number 7
> 
> (--) PCI: (1:4:0) HP unknown chipset (0x1008) rev 2, Mem @ 0xf6000000/25,
> BIOS @
>   0xf1e00000/21
> (II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
>          mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
> (II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,
>          pm2, pm, 300sx, 500tx, mx, delta
> (II) S3VIRGE: driver (version 1.6.13) for S3 ViRGE chipsets: virge, 86C325,
>          virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
>          86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
>          trio 3d/2x, 86C362, 86C368
> (II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
>          SIS300, SIS630, SIS540
> (II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
>          Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
>          Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
>          TwisterK
> (II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, cyber9388,
>          cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
>          tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
>          providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
>          cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
>          cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
> (II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
>          ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
>          ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
> (II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
>          3dfx Voodoo3, 3dfx Voodoo5
> (II) FBDev: driver for framebuffer: fbdev, afb
> (II) ATI: ATI driver (version 6.3.6) for chipsets: ati
> (II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
>          ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
>          ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
>          ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
>          ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
>          ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
>          ATI Rage 128 Mobility ML (AGP)
> (II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
>          ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
>          ATI Radeon VE (AGP)
> (II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,
>          imstt3d
> (II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
> (II) v4l driver for Video4Linux
> (EE) No devices detected.
> 
> Fatal server error:
> no screens found
> 
> When reporting a problem related to a server crash, please send
> the full server output, not just the last messages.
> This can be found in the log file "/var/log/XFree86.0.log".
> Please report problems to submit@bugs.debian.org.
> 
> XIO:  fatal IO error 232 (Connection reset by peer) on X server ":0.0"
>        after 0 requests (0 known processed) with 0 events remaining.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] ksoftirqd eats 100% cpu :-(
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On Monday 07 October 2002 17:20, Thibaut VARENE wrote:
> Tilo Riemer wrote:
> > Hello list,
> >
> > I use Debian 3.0 on an HP9000/710. Almost all works fine, but the
> > ksoftirqd eats all cpu time. I read that it's a bug in the kernel. Is
> > there a patch for fixing this problem?
>
> It's a well known bug. on 7x0 and 7x5 boxes.

It's a bug/feature related to the HIL drivers. 
Since we have to poll the HIL ports the whole time
the bunch of running timers increase the ksoftirqd load a lot.

> Maybe we should add a faq entry ?

This would be great.

Helge




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From: Tilo Riemer <t.riemer@visoel.de>
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Subject: Re: [parisc-linux] ksoftirqd eats 100% cpu :-(
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Hello,


>>>I use Debian 3.0 on an HP9000/710. Almost all works fine, but the
>>>ksoftirqd eats all cpu time. I read that it's a bug in the kernel. Is
>>>there a patch for fixing this problem?
>>
> It's a bug/feature related to the HIL drivers. 
> Since we have to poll the HIL ports the whole time
> the bunch of running timers increase the ksoftirqd load a lot.

Okay, if it's a feature and not a bug I can sleep without worries ;-)


Best regards and thanks, Tilo



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From: Tilo Riemer <t.riemer@visoel.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ksoftirqd eats 100% cpu :-(
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Hello list,

>>>I use Debian 3.0 on an HP9000/710. Almost all works fine, but the
>>>ksoftirqd eats all cpu time. I read that it's a bug in the kernel. Is
>>>there a patch for fixing this problem?

> It's a bug/feature related to the HIL drivers. 
> Since we have to poll the HIL ports the whole time
> the bunch of running timers increase the ksoftirqd load a lot.

Btw, if the mouse and keyboard are attached, the ksoftirqd needs about 
50-60%, without mouse and keyboard, it needs 100%.


Best regards, Tilo



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From: Peter Karsmakers <peter.karsmakers@khk.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Can't start X-windows on HP C240 with HP FX4 graphics card ?
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This port would be very interesting.  I hope someone can help us.

 >Hi,
 >
 >the FX? Cards are unsupported at the moment. However, if I understand
 >correctly, there has been a port for x86 linux at times of kernel
 >2.2.16. I am not a kernel hacker, but I would like to know if there is a
 >possibility to port the beta quality  driver from
 >http://www.hp.com/workstations/support/software/drivers/linux/video/fxvideo/
 >to current kernels.
 >
 >
 >Berthold
 >
 >>Peter Karsmakers wrote:
 > > Hi,
 > > I have a HP visualize C240 with a FX4 graphics card.  I've mananged to
 > install linux parisc but can't get the X windows to work.  Is my graphics
 > adapter supported?
 > > The following output is dumped on the screen when I give the xstart 
command.
 > > Thanks,
 > > Peter Karsmakers
 > > debianC240:~# startx
 > > warning: process set to nice value 0 instead of -10 as requested
 > > This is a pre-release version of XFree86, and is not supported in any
 > way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
 > to fixes@XFree86.Org. Before reporting bugs in pre-release versions,
 > please check the latest version in the XFree86 CVS repository
 > (http://www.XFree86.Org/cvs)
 > > XFree86 Version 4.1.0.1 / X Window System
 > (protocol Version 11, revision 0, vendor release 6510)
 > Release Date: 21 December 2001
 > If the server is older than 6-12 months, or if your card is
 > newer than the above date, look for a newer version before
 > reporting problems.  (See http://www.XFree86.Org/FAQ)
 > Build Operating System: Linux 2.4.16-64 parisc64 [ELF]
 > (==) Log file: "/var/log/XFree86.0.log", Time: Fri Oct  4 16:46:28 2002
 > (==) Using config file: "/etc/X11/XF86Config-4"
 > Markers: (--) probed, (**) from config file, (==) default setting,
 > (++) from command line, (!!) notice, (II) informational,
 > (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
 > (==) ServerLayout "Default Layout"
 > (**) |-->Screen "Default Screen" (0)
 > (**) |   |-->Monitor "compaq qvision"
 > (**) |   |-->Device "HP 4FX"
 > (**) |-->Input Device "Generic Keyboard"
 > (**) XKB: rules: "xfree86"
 > (**) XKB: model: "pc104"
 > (**) XKB: layout: "us"
 > (**) |-->Input Device "Configured Mouse"
 > (**) |-->Input Device "Generic Mouse"
 > (WW) The directory "/usr/lib/X11/fonts/cyrillic" does not exist.
 > Entry deleted from font path.
 > (**) FontPath set to
 > "unix/:7100,/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts/100d
 > 
pi/:unscaled,/usr/lib/X11/fonts/75dpi/:unscaled,/usr/lib/X11/fonts/Type1,/usr/li
 > b/X11/fonts/Speedo,/usr/lib/X11/fonts/100dpi,/usr/lib/X11/fonts/75dpi"
 > (==) RgbPath set to "/usr/X11R6/lib/X11/rgb"
 > (--) using VT number 7
 > > (--) PCI: (1:4:0) HP unknown chipset (0x1008) rev 2, Mem @ 0xf6000000/25,
 > BIOS @
 > 0xf1e00000/21
 > (II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
 > mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
 > (II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,
 > pm2, pm, 300sx, 500tx, mx, delta
 > (II) S3VIRGE: driver (version 1.6.13) for S3 ViRGE chipsets: virge, 86C325,
 > virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
 > 86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
 > trio 3d/2x, 86C362, 86C368
 > (II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
 > SIS300, SIS630, SIS540
 > (II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
 > Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
 > Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
 > TwisterK
 > (II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, cyber9388,
 > cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
 > tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
 > providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
 > cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
 > cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
 > (II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
 > ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
 > ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
 > (II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
 > 3dfx Voodoo3, 3dfx Voodoo5
 > (II) FBDev: driver for framebuffer: fbdev, afb
 > (II) ATI: ATI driver (version 6.3.6) for chipsets: ati
 > (II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
 > ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
 > ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
 > ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
 > ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
 > ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
 > ATI Rage 128 Mobility ML (AGP)
 > (II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
 > ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
 > ATI Radeon VE (AGP)
 > (II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,
 > imstt3d
 > (II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
 > (II) v4l driver for Video4Linux
 > (EE) No devices detected.
 > > Fatal server error:
 > no screens found
 > > When reporting a problem related to a server crash, please send
 > the full server output, not just the last messages.
 > This can be found in the log file "/var/log/XFree86.0.log".
 > Please report problems to submit@bugs.debian.org.
 > > XIO:  fatal IO error 232 (Connection reset by peer) on X server ":0.0"
 > after 0 requests (0 known processed) with 0 events remaining.
 > > _______________________________________________
 > parisc-linux mailing list
 > parisc-linux@lists.parisc-linux.org
 > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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Subject: [parisc-linux] cvsup for hppa?
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Hello list,

is there cvsup for hppa?


Best regards, Tilo



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From: Tilo Riemer <t.riemer@visoel.de>
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Subject: [parisc-linux] cvs does not terminate...
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Xref: news.gmane.org gmane.linux.ports.parisc:16409

Hello list,

if I use LinCVS with my parisc machine as server, cvs does not terminate 
in all cases. Is this a known problem? It seems that all works fine if I 
use cvs from commandline.


Best regards, Tilo



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From: phi <phi@hpfrcu81.france.hp.com>
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Subject: [parisc-linux] boot (micro) hang
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Xref: news.gmane.org gmane.linux.ports.parisc:16410

Hi All,

I have made no progress today.
Thomas helped to turn on verbosity during boot and remove LED display code,
but yet it fail to boot 'normally' and I still get the micro hang (15 minute).

Here is the boot display.


HARD Booted.
INIT C5FF
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002

Partition Start(MB) End(MB) Id Type
1               1      32   f0 Palo
2              33     201   82 swap
3             202    4094   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 2511320 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=/dev/sda3 HOME=/ ncr53c8xx=burst:3
console=ttyS0
TERM=vt102 palo_kernel=3/boot/vmlinux'
Selected kernel: /boot/vmlinux from partition 3
ELF32 executable
Entry 00100000 first 00100000 n 6
Segment 0 load 00100000 size 2065880 mediaptr 0x1000
Segment 1 load 002fa000 size 453664 mediaptr 0x1fa000
Segment 2 load 0036c000 size 269924 mediaptr 0x269000
Segment 3 load 003b0000 size 8192 mediaptr 0x2ab000
Segment 4 load 003b8000 size 32768 mediaptr 0x2ad000
Segment 5 load 003e1e70 size 104784 mediaptr 0x2b5e70
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.19-pa21 (phi@iws1pb02) (gcc version 3.0.4) #3 Tue Oct 8
15:32:
43 CEST 2002
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 000059c0 00000481 00000000 00000002 77ecd750 100000f0 00000008 000000b2
00
0000b2
vers  00000205
CPUID vers 14 rev 9 (0x000001c9)
capabilities 0x2
model 9000/780/C180
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda3 HOME=/ ncr53c8xx=burst:3 console=ttyS0
TERM=
vt102 palo_kernel=3/boot/vmlinux
Console: colour dummy device 160x64
Initialized PDC Console for debugging.
Calibrating delay loop... 359.62 BogoMIPS
Memory: 126368k available
Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Searching for devices...


=================== micro hang here ==================================

Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
2. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions 0x680, 0x3, 0xa
3. Raven U/L2 Dino PS/2 Port (10) at 0xf2001000 [8/1], versions 0x6, 0x0, 0x96
4. Raven U/L2 Dino RS-232 (10) at 0xf2003000 [8/3], versions 0x6, 0x0, 0x8c
5. Raven U/L2 Core FW-SCSI (4) at 0xf200c000 [8/12], versions 0x3b, 0x0, 0x89
6. Raven U/L2 Core BA (11) at 0xffd00000 [8/16], versions 0x3b, 0x0, 0x81, 
addi
tional addresses: 0xffd0c000 0xffc00000
7. Raven U/L2 Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x3b, 0x0,
0
x74,  additional addresses: 0xffd01000 0xffd03000
8. Raven U/L2 Core Audio (10) at 0xffd04000 [8/16/1], versions 0x3b, 0x4, 0x7b
9. Raven U/L2 Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x3b, 0x0,
0x8c
10. Raven U/L2 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x3b, 0x0, 0x82
11. Raven U/L2 Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x3b,
0x0,
 0x8a
12. Raven U/L2 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x3b, 0x0,
0
x84
13. Raven U/L2 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x3b, 0x0,
0
x84
14. Raven Backplane Wax BA (11) at 0xffe00000 [8/20], versions 0x17, 0x0, 0x8e
15. Raven Backplane Wax HIL (10) at 0xffe01000 [8/20/1], versions 0x17, 0x0,
0x7
3
16. Raven Backplane RS-232 (10) at 0xffe02000 [8/20/2], versions 0x17, 0x0,
0x8c

17. Raven Backplane Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x17,
0x0,
 0x90,  additional addresses: 0xffc88000 0xfc00000b
18. Gecko GSC Core Graphics (10) at 0xfa000000 [8/24], versions 0x16, 0x0,
0x85,
  additional addresses: 0xf0026000
19. U2-IOA BC GSC+ Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1, 0xc
20. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb
21. U2-IOA BC GSC+ Port (7) at 0xf103f000 [10/63], versions 0x501, 0x1, 0xc
22. Raven U 180 (9000/780/C180) (0) at 0xfffa0000 [32], versions 0x59c, 0x0,
0x4

23. Memory (1) at 0xfffb1000 [49], versions 0x72, 0x0, 0x9
CPU(s): 1 x PA8000 (PCX-U) at 180.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
Wax at 0xffe00000 found.
Wax EISA Adapter found at 0xfc000000
EISA EEPROM at 0xffc88000
Enumerating EISA bus
EISA slot 1 a configured board was not detected ( expected INP0500)
Dino version 3.1 found at 0xf2000000
Dino: No PCI devices enabled.
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch enabled, polling @ 0xf0140000.
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
STI GSC/PCI graphics driver version 0.9
STI word mode ROM at f0026000, hpa at fa000000
STI id 2d08c0a7-9a02587, conforms to spec rev. 8.07
STI device: INTERNAL_EG_1280
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 2d08c0a7, mmio: 0xfa100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI
en
abled
ttyS00 at iomem 0xffd05800 (irq = 90) is a 16550A
ttyS01 at iomem 0xffe02800 (irq = 121) is a 16550A
PS/2 keyboard port at 0xffd08000 (irq 69) found, no device attached.
PS/2 psaux port at 0xffd08100 (irq 69) found, no device attached.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xffd07000, IRQ 87
eth0: 82596 at 0xffd07000, 00 60 B0 05 34 7B IRQ 87.
82596.c $Revision: 1.29 $
SCSI subsystem driver Revision: 1.00
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 35
ncr53c8xx: 53c720 detected
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3b-20010512
ncr53c720-0-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
  Vendor: SEAGATE   Model: ST15150W          Rev: HP10
  Type:   Direct-Access                      ANSI SCSI revision: 02
53c700: Version 2.7 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
Partition check:
 sda: sda1 sda2 sda3
Lasi Harmony Audio driver V0.9a, h/w id 20, rev. 0 at 0xffd04000, IRQ 82
mice: PS/2 mouse device common for all mice
HP SDC: HP SDC reports successful PUP.
HP SDC: HP SDC at 0xffe01000, IRQ 126 (NMI IRQ 125)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :   392.800 MB/sec
   8regs_prefetch:   392.800 MB/sec
   32regs    :   305.600 MB/sec
   32regs_prefetch:   305.600 MB/sec
raid5: using function: 8regs_prefetch (392.800 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
HP SDC: Transaction add failed: transaction already queued?
md: Autodetecting RAID arrays.
HP SDC: Transaction add failed: transaction already queued?
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: read timeout (860942us)!
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 264k freed
INIT: version 2.84 booting
Loading /etc/console/boottime.kmap.gz
Activating swap.
Adding Swap: 173156k swap-space (priority -1)
Checking root file system...
fsck 1.27 (8-Mar-2002)
/dev/sda3: clean, 49882/498976 files, 353001/996735 blocks
System time was Tue Oct  8 12:52:10 UTC 2002.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Tue Oct  8 12:52:03 UTC 2002.
Calculating module dependencies... depmod: Can't open
/lib/modules/2.4.19-pa21/m
odules.dep for writing
done.
Loading modules:
modprobe: Can't open dependencies file /lib/modules/2.4.19-pa21/modules.dep
(No
such file or directory)
Checking all file systems...
fsck 1.27 (8-Mar-2002)
Setting kernel variables.
Mounting local filesystems...
nothing was mounted
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces... eth0: link ok.
done.
R
Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Tue Oct  8 14:52:10 CEST 2002

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.

=============================================================================




The vmlinux.prev boot ok, so no HW should be the root cause.

The vmlinux.prev is


Linux version 2.4.18-pa58 (phi@iws1pb02) (gcc version 3.0.4) #1 Thu Jul 25
13:29
:39 CEST 2002


Any ideas?

Phi


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> It's a bug/feature related to the HIL drivers.
> Since we have to poll the HIL ports the whole time
> the bunch of running timers increase the ksoftirqd load a lot.

I understand that polling is necessary while sending commands out
to hil devices, but input should be interrupt driven. What is the
reason for all of the polling?

John Marvin
jsm@fc.hp.com


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> I have made no progress today.
> Thomas helped to turn on verbosity during boot and remove LED display code,
> but yet it fail to boot 'normally' and I still get the micro hang (15 minute).
> 
> Here is the boot display.

Make sure you have the System.map that goes along with the kernel you
are booting, then when you observe the hang on bootup, press the TOC
button (usually a recessed button on the back of the box). The machine
should automatically reboot. At the next reboot at the PDC prompt, do
"ser pim" and capture the output. Put that output and your System.map
someplace others can access (or you can try to match it up yourself, 
the interesting bits are where the IAOQ and GR02 values lay in 
System.map)

good luck :)
randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>-- Original Message --
>From: Tilo Riemer <t.riemer@visoel.de>
>To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] cvsup for hppa?
>Date: Tue, 08 Oct 2002 10:15:07 +0200
>
>
>Hello list,
>
>is there cvsup for hppa?

Do you speek about package.
If yes, I also have a look in cvsup. And cvsup is written in 'pm3' (Modula3)
which has a lot of platform dependent code and it is unfortunately only packaged
for i386 . And I did not know if its successor cm3 is already pakaged :(.

Regards,
    Joel



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phi wrote:
> Thomas helped to turn on verbosity during boot and remove LED display code,
> but yet it fail to boot 'normally' and I still get the micro hang (15 minute).

The long delay happens during device discovery.
You could enable EARLY_BOOTUP_DEBUG in arch/parisc/kernel/pdc_cons.c
and add some printk's to the loop in system_map_inventory().

Only two pieces of code really get executed during that time.
One is the PDC calls - verify your firmware is the latest and if it
isn't, please update.  The other might be GSC buswalk code. I thought
the bus's under U2 are walked to detect devices not listed by PDC.
But I don't know exactly when that occurs in the boot sequence.

grant


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On Mon, Oct 07, 2002 at 06:49:19PM +0200, b.gunreben wrote:
> the FX? Cards are unsupported at the moment. However, if I understand
> correctly, there has been a port for x86 linux at times of kernel
> 2.2.16. I am not a kernel hacker, but I would like to know if there is a
> possibility to port the beta quality  driver from 
> http://www.hp.com/workstations/support/software/drivers/linux/video/fxvideo/
> to current kernels.

porting the kernel won't help, the X server modules contain all the
important bits. The header file supplied with the kernel sources give
some insides about the FX hardware. But not enough to give an idea
how to setup the framebuffer to a mode, we could use for a simple
framebuffer.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]


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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: [parisc-linux] New PA-RISC/Linux Boot HOWTO out !
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Hi fellow pa-ckers !

Thomas Marteaut and I are proud to announce the release of the 
PA-RISC/Linux Boot HOWTO version 1.0 !

This release is the result of a long work, and features many new and 
improved sections.

You can find it as usual on the PA/Team website:
http://pateam.esiee.fr/parisc-linux-boot/doc.html

and on TLDP.

HTH !


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Thomas:
> porting the kernel won't help, the X server modules 
> contain all the important bits. 

... and they are not open source, right? Damn.

And HP is not violating any versions GPL there? Did they build modules
from scratch?

tg



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> > porting the kernel won't help, the X server modules 
> > contain all the important bits. 
> 
> ... and they are not open source, right? Damn.
> 
> And HP is not violating any versions GPL there? Did they build modules
> from scratch?

1. xfree86 does not have a GPL license
2. there have been many precedences for binary-only X drivers.

(I'm not saying this is a good thing, mind you...)

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> 
> > It's a bug/feature related to the HIL drivers.
> > Since we have to poll the HIL ports the whole time
> > the bunch of running timers increase the ksoftirqd load a lot.
> 
> I understand that polling is necessary while sending commands out
> to hil devices, but input should be interrupt driven. What is the
> reason for all of the polling?
> 
> John Marvin
> jsm@fc.hp.com


It's interrupt driven, but the ISR _always_ calls tasklet_schedule 
to do the real work. The HIL state machine and SERIO layer hooks
in a function to it's own tasklet so it can update on interrupt.

Most drivers usage of tasklets involves:

a- Setup and enable during module init
b- Leave them alone.

I assume that this is the case, because tasklets are CPU intensive.
It would be nice to have someone investiage this... if not, it goes
on the end of my now _really_ long todo list :)

c.



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On Tue, 8 Oct 2002, John Marvin wrote:
> I understand that polling is necessary while sending commands out
> to hil devices, but input should be interrupt driven. What is the
> reason for all of the polling?

The polling in the driver can definitely be improved.  I haven't
had the inspiration to go do so yet.

First off, on a system that has just a mouse and keyboard, doesn't
need to use any of the other features in the HP SDC (the real time
clock, which seems redundant in most systems capable of running
parisc-linux, the timers, and the tone generator), and doesn't need to
keep track of plug/unplug events for multiple mice/keyboards or transfer
large amounts of data to the HIL, which is probably going to be 90%+ of
the user base, a much simpler driver that allows the i8042 firmware to drive
the HIL MLC could be written, sort of like the USB_HIDBP stuff.

The HIL driver that's in there now is more like the full-fledged
USB driver, and repolls of the loop to check for added/removed
devices are done manually, which allows more information to be extracted
from the devices during this process.  Unfortunately, because the MLC was
designed a bit cretinously, it expects the host to wait for timeouts
and responses.  The current design uses a state machine to keep
those delays from having an impact on the real-time scheduling, rather
than busy-polling.  Unfortunately again, the system clock only has a 100HZ
frequency, so in order to provide timely responses the driver runs an
opportunistic tasklet in order to catch the CPU during a context
switch.  The linux tasket scheduler is a bit limited in that you
cannot tell it not to re-call a tasklet more than once every
N nanoseconds unless that N is as large as a full clock tick (10ms).

So most of the time the tasklet gets woken up, decides there's nothing
to do, and goes back to bed.  This should only takes a very few CPU
cycles (238 to be precise), so I don't know why it accounts for so much
time.  I guess the kernel decides when the system is idle to run the
tasklets continuously, which is not the way I was expecting them to behave
(I was expecting them to run one time per IRQ, and once all the taskets
returned and there was no work to do in userspace, the idle task would
start.  I believe that that is what the documentation I was using said
would happen when a tasklet rechedules itself, but apparently it was
wrong.)

Rest assured that the HIL driver does move aside for real work, it's
just taking the place of the idle task, really.  Not that that's
a good thing -- the idle task is supposed to use any power-saving
CPU instructions available to decrease power consumption.

BTW, does anyone have any hardware that does host-to-HIL transfers?
So far the only one I could potentially test with is the tiny
command that sets the autorepeat rate on the keyboard -- I don't even have
a keyboard with LEDs :-(

Additionally I'm interested to know if the HIL MLC chipsets were ever
used in system without the accompanying i8042.

--
Brian S. Julin




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Hi,

On Tue, Oct 08, 2002 at 11:46:46PM -0400, Brian S. Julin wrote:
> BTW, does anyone have any hardware that does host-to-HIL transfers?

How about a "46081A HP-HIL / AUDIO EXTENSION"? Shouldn't this need
host-to-HIL transfers for audio output?

Cheers,
Enrik


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Grant Grundler wrote:
> The long delay happens during device discovery.
> You could enable EARLY_BOOTUP_DEBUG in arch/parisc/kernel/pdc_cons.c
> and add some printk's to the loop in system_map_inventory().
> 
> Only two pieces of code really get executed during that time.
> One is the PDC calls - verify your firmware is the latest and if it
> isn't, please update.  The other might be GSC buswalk code. I thought
> the bus's under U2 are walked to detect devices not listed by PDC.
> But I don't know exactly when that occurs in the boot sequence.
> 
> grant

My Firmware is

Firmware Version  5.2
Duplex Console IO Dependent Code (IODC) revision 1
Boot IO Dependent Code (IODC) revision 153


Dunno if this is good enuff. At least it works for old kernel.


==================================================================

printk() into walk_native_bus() as follow shos this.

static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high,
                            struct parisc_device *parent)
{
        int i, devices_found = 0;
        unsigned long hpa = io_io_low;
        struct hardware_path path;

printk("1.1 low=0x%08x high=0x%08x\n",io_io_low,io_io_high);
        get_node_path(parent, &path);
        do {
printk("1.2 i=%d hpa=0x%08x\n",0,hpa);
                for (i = 0; i < MAX_NATIVE_DEVICES; i++, hpa +=
NATIVE_DEVICE_OF
FSET) {
                        struct parisc_device *dev;

                        /* Was the device already added by Firmware? */
                        dev = find_device_by_addr(hpa);
                        if (!dev) {
                                path.mod = i;
printk("1.3 i=%d hpa=0x%08x\n",i,hpa);
                                dev = alloc_pa_dev(hpa, &path);
                                if (!dev)
                                        continue;

printk("1.4\n");
                                register_parisc_device(dev);
                                devices_found++;
                        }
                        walk_lower_bus(dev);
                }
        } while (!devices_found && hpa < io_io_high);
}

1.1 low=0xfff80000 high=0xfffc0000
1.2 i=0 hpa=0xfff80000
1.3 i=0 hpa=0xfff80000
1.3 i=1 hpa=0xfff81000
1.3 i=2 hpa=0xfff82000
1.3 i=3 hpa=0xfff83000
1.3 i=4 hpa=0xfff84000
1.3 i=5 hpa=0xfff85000
1.3 i=6 hpa=0xfff86000
1.3 i=7 hpa=0xfff87000
1.3 i=8 hpa=0xfff88000
1.4
1.1 low=0xf2000000 high=0xf4000000
1.2 i=0 hpa=0xf2000000
1.3 i=1 hpa=0xf2001000
1.4
1.3 i=2 hpa=0xf2002000
1.3 i=3 hpa=0xf2003000
1.4
1.3 i=4 hpa=0xf2004000
1.3 i=5 hpa=0xf2005000
1.3 i=6 hpa=0xf2006000
1.3 i=7 hpa=0xf2007000
1.3 i=8 hpa=0xf2008000
1.3 i=9 hpa=0xf2009000
1.3 i=10 hpa=0xf200a000
1.3 i=11 hpa=0xf200b000
1.3 i=13 hpa=0xf200d000
1.3 i=14 hpa=0xf200e000
1.3 i=15 hpa=0xf200f000
1.3 i=16 hpa=0xf2010000
1.3 i=17 hpa=0xf2011000
1.3 i=18 hpa=0xf2012000
1.3 i=19 hpa=0xf2013000
1.3 i=20 hpa=0xf2014000
1.3 i=21 hpa=0xf2015000
1.3 i=22 hpa=0xf2016000
1.3 i=23 hpa=0xf2017000
1.3 i=24 hpa=0xf2018000
1.3 i=25 hpa=0xf2019000
1.3 i=26 hpa=0xf201a000
1.3 i=27 hpa=0xf201b000
1.3 i=28 hpa=0xf201c000
1.3 i=29 hpa=0xf201d000
1.3 i=30 hpa=0xf201e000
1.3 i=31 hpa=0xf201f000
1.3 i=32 hpa=0xf2020000
1.3 i=33 hpa=0xf2021000
1.3 i=34 hpa=0xf2022000
1.3 i=35 hpa=0xf2023000
1.3 i=36 hpa=0xf2024000
1.3 i=37 hpa=0xf2025000
1.3 i=38 hpa=0xf2026000
1.3 i=39 hpa=0xf2027000
1.3 i=40 hpa=0xf2028000
1.3 i=41 hpa=0xf2029000
1.3 i=42 hpa=0xf202a000
1.3 i=43 hpa=0xf202b000
1.3 i=44 hpa=0xf202c000
1.3 i=45 hpa=0xf202d000
1.3 i=46 hpa=0xf202e000
1.3 i=47 hpa=0xf202f000
1.3 i=48 hpa=0xf2030000
1.3 i=49 hpa=0xf2031000
1.3 i=50 hpa=0xf2032000
1.3 i=51 hpa=0xf2033000
1.3 i=52 hpa=0xf2034000
1.3 i=53 hpa=0xf2035000
1.3 i=54 hpa=0xf2036000
1.3 i=55 hpa=0xf2037000
1.3 i=56 hpa=0xf2038000
1.3 i=57 hpa=0xf2039000
1.3 i=58 hpa=0xf203a000
1.3 i=59 hpa=0xf203b000
1.3 i=60 hpa=0xf203c000
1.3 i=61 hpa=0xf203d000
1.3 i=62 hpa=0xf203e000
1.3 i=9 hpa=0xfff89000
1.3 i=10 hpa=0xfff8a000
1.4
1.1 low=0xf1000000 high=0xf2000000
1.2 i=0 hpa=0xf1000000
1.3 i=0 hpa=0xf1000000
1.3 i=1 hpa=0xf1001000
1.3 i=2 hpa=0xf1002000
1.3 i=3 hpa=0xf1003000
1.3 i=4 hpa=0xf1004000
1.3 i=5 hpa=0xf1005000
1.3 i=6 hpa=0xf1006000
1.3 i=7 hpa=0xf1007000
1.3 i=8 hpa=0xf1008000
1.3 i=9 hpa=0xf1009000
1.3 i=10 hpa=0xf100a000
1.3 i=11 hpa=0xf100b000
1.3 i=12 hpa=0xf100c000
1.3 i=13 hpa=0xf100d000
1.3 i=14 hpa=0xf100e000
1.3 i=15 hpa=0xf100f000
1.3 i=16 hpa=0xf1010000
1.3 i=17 hpa=0xf1011000
1.3 i=18 hpa=0xf1012000
1.3 i=19 hpa=0xf1013000
1.3 i=20 hpa=0xf1014000
1.3 i=21 hpa=0xf1015000
1.3 i=22 hpa=0xf1016000
1.3 i=23 hpa=0xf1017000
1.3 i=24 hpa=0xf1018000
1.3 i=25 hpa=0xf1019000
1.3 i=26 hpa=0xf101a000
1.3 i=27 hpa=0xf101b000
1.3 i=28 hpa=0xf101c000
1.3 i=29 hpa=0xf101d000
1.3 i=30 hpa=0xf101e000
1.3 i=31 hpa=0xf101f000
1.3 i=32 hpa=0xf1020000
1.3 i=33 hpa=0xf1021000
1.3 i=34 hpa=0xf1022000
1.3 i=35 hpa=0xf1023000
1.3 i=36 hpa=0xf1024000
1.3 i=37 hpa=0xf1025000
1.3 i=38 hpa=0xf1026000
1.3 i=39 hpa=0xf1027000
1.3 i=40 hpa=0xf1028000
1.3 i=41 hpa=0xf1029000
1.3 i=42 hpa=0xf102a000
1.3 i=43 hpa=0xf102b000
1.3 i=44 hpa=0xf102c000
1.3 i=45 hpa=0xf102d000
1.3 i=46 hpa=0xf102e000
1.3 i=47 hpa=0xf102f000
1.3 i=48 hpa=0xf1030000
1.3 i=49 hpa=0xf1031000
1.3 i=50 hpa=0xf1032000
1.3 i=51 hpa=0xf1033000
1.3 i=52 hpa=0xf1034000
1.3 i=53 hpa=0xf1035000
1.3 i=54 hpa=0xf1036000
1.3 i=55 hpa=0xf1037000
1.3 i=56 hpa=0xf1038000
1.3 i=57 hpa=0xf1039000
1.3 i=58 hpa=0xf103a000
1.3 i=59 hpa=0xf103b000
1.3 i=60 hpa=0xf103c000
1.3 i=61 hpa=0xf103d000
1.3 i=62 hpa=0xf103e000
1.2 i=0 hpa=0xf1040000
1.3 i=0 hpa=0xf1040000
1.3 i=1 hpa=0xf1041000
1.3 i=2 hpa=0xf1042000
1.3 i=3 hpa=0xf1043000
1.3 i=4 hpa=0xf1044000
1.3 i=5 hpa=0xf1045000
1.3 i=6 hpa=0xf1046000
1.3 i=7 hpa=0xf1047000
1.3 i=8 hpa=0xf1048000
1.3 i=9 hpa=0xf1049000
1.3 i=10 hpa=0xf104a000
1.3 i=11 hpa=0xf104b000
1.3 i=12 hpa=0xf104c000
1.3 i=13 hpa=0xf104d000
1.3 i=14 hpa=0xf104e000
1.3 i=15 hpa=0xf104f000
1.3 i=16 hpa=0xf1050000
1.3 i=17 hpa=0xf1051000
1.3 i=18 hpa=0xf1052000
1.3 i=19 hpa=0xf1053000
1.3 i=20 hpa=0xf1054000
1.3 i=21 hpa=0xf1055000
1.3 i=22 hpa=0xf1056000
1.3 i=23 hpa=0xf1057000
1.3 i=24 hpa=0xf1058000
1.3 i=25 hpa=0xf1059000
1.3 i=26 hpa=0xf105a000
1.3 i=27 hpa=0xf105b000
1.3 i=28 hpa=0xf105c000
1.3 i=29 hpa=0xf105d000
1.3 i=30 hpa=0xf105e000
1.3 i=31 hpa=0xf105f000
1.3 i=32 hpa=0xf1060000
1.3 i=33 hpa=0xf1061000
1.3 i=34 hpa=0xf1062000
1.3 i=35 hpa=0xf1063000
1.3 i=36 hpa=0xf1064000
1.3 i=37 hpa=0xf1065000
1.3 i=38 hpa=0xf1066000
1.3 i=39 hpa=0xf1067000
1.3 i=40 hpa=0xf1068000
1.3 i=41 hpa=0xf1069000
1.3 i=42 hpa=0xf106a000
1.3 i=43 hpa=0xf106b000
1.3 i=44 hpa=0xf106c000
1.3 i=45 hpa=0xf106d000
1.3 i=46 hpa=0xf106e000
1.3 i=47 hpa=0xf106f000
1.3 i=48 hpa=0xf1070000
1.3 i=49 hpa=0xf1071000
1.3 i=50 hpa=0xf1072000
1.3 i=51 hpa=0xf1073000
1.3 i=52 hpa=0xf1074000
1.3 i=53 hpa=0xf1075000
1.3 i=54 hpa=0xf1076000
1.3 i=55 hpa=0xf1077000
1.3 i=56 hpa=0xf1078000
1.3 i=57 hpa=0xf1079000
1.3 i=58 hpa=0xf107a000
1.3 i=59 hpa=0xf107b000
1.3 i=60 hpa=0xf107c000
1.3 i=61 hpa=0xf107d000
1.3 i=62 hpa=0xf107e000
1.3 i=63 hpa=0xf107f000
1.2 i=0 hpa=0xf1080000
1.3 i=0 hpa=0xf1080000
1.3 i=1 hpa=0xf1081000
1.3 i=2 hpa=0xf1082000
1.3 i=3 hpa=0xf1083000
1.3 i=4 hpa=0xf1084000
1.3 i=5 hpa=0xf1085000
1.3 i=6 hpa=0xf1086000
1.3 i=7 hpa=0xf1087000
1.3 i=8 hpa=0xf1088000
1.3 i=9 hpa=0xf1089000
1.3 i=10 hpa=0xf108a000
1.3 i=11 hpa=0xf108b000
1.3 i=12 hpa=0xf108c000
1.3 i=13 hpa=0xf108d000
1.3 i=14 hpa=0xf108e000
1.3 i=15 hpa=0xf108f000
1.3 i=16 hpa=0xf1090000
1.3 i=17 hpa=0xf1091000
1.3 i=18 hpa=0xf1092000
1.3 i=19 hpa=0xf1093000
1.3 i=20 hpa=0xf1094000
1.3 i=21 hpa=0xf1095000
1.3 i=22 hpa=0xf1096000
1.3 i=23 hpa=0xf1097000
1.3 i=24 hpa=0xf1098000
1.3 i=25 hpa=0xf1099000
1.3 i=26 hpa=0xf109a000
1.3 i=27 hpa=0xf109b000
1.3 i=28 hpa=0xf109c000
1.3 i=29 hpa=0xf109d000
1.3 i=30 hpa=0xf109e000
1.3 i=31 hpa=0xf109f000
1.3 i=32 hpa=0xf10a0000
1.3 i=33 hpa=0xf10a1000
1.3 i=34 hpa=0xf10a2000
1.3 i=35 hpa=0xf10a3000
1.3 i=36 hpa=0xf10a4000
1.3 i=37 hpa=0xf10a5000
1.3 i=38 hpa=0xf10a6000
1.3 i=39 hpa=0xf10a7000
1.3 i=40 hpa=0xf10a8000
1.3 i=41 hpa=0xf10a9000
1.3 i=42 hpa=0xf10aa000
1.3 i=43 hpa=0xf10ab000
1.3 i=44 hpa=0xf10ac000
1.3 i=45 hpa=0xf10ad000
1.3 i=46 hpa=0xf10ae000
1.3 i=47 hpa=0xf10af000
1.3 i=48 hpa=0xf10b0000
1.3 i=49 hpa=0xf10b1000
1.3 i=50 hpa=0xf10b2000
1.3 i=51 hpa=0xf10b3000
1.3 i=52 hpa=0xf10b4000
1.3 i=53 hpa=0xf10b5000
1.3 i=54 hpa=0xf10b6000
1.3 i=55 hpa=0xf10b7000
1.3 i=56 hpa=0xf10b8000
1.3 i=57 hpa=0xf10b9000
1.3 i=58 hpa=0xf10ba000
1.3 i=59 hpa=0xf10bb000
1.3 i=60 hpa=0xf10bc000
1.3 i=61 hpa=0xf10bd000
1.3 i=62 hpa=0xf10be000
1.3 i=63 hpa=0xf10bf000
1.2 i=0 hpa=0xf10c0000


I am not knowledeable enough to tell if the range to walk on is valid or not,
but it is way too  much for my config.

I wonder if this functin got the range correctly
void walk_lower_bus(struct parisc_device *dev)
{
        unsigned long io_io_low, io_io_high;

        if(!BUS_CONVERTER(dev) || IS_LOWER_PORT(dev))
                return;

        io_io_low = ((unsigned long)(signed int)READ_IO_IO_LOW(dev) +
~FLEX_MASK
) & FLEX_MASK;
        io_io_high = ((unsigned long)(signed int)READ_IO_IO_HIGH(dev) +
~FLEX_MA
SK) & FLEX_MASK;

        walk_native_bus(io_io_low, io_io_high, dev);
}


For the time being I enforce

io_io_high=io_io_low+(MAX_NATIVE_DEVICES*NATIVE_DEVICE_OFFSET);

In the above function which as the effect of shortening the loop and boot ok.
Dunno if this hack make sense, may be I would loose some devices, but I don't
plan to add any anyway.

Phi


--
mailto:Philippe_Benard@hp.com [ HPS-SE HP-UX kernel debugging tools ]


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Xref: news.gmane.org gmane.linux.ports.parisc:16423

*sigh*  

This is due to a change I made to detect devices on the E class systems.

Before we encountered the E Class systems, the devices were always at
the bottom of the range, but E Class put them at the top.  The function
will break out once a device is found ... it appears that your system
also has the devices towards the top of the io range.

post the contents of /proc/iomem and I can verify this for sure.  We
need to come up with a better way for discovering these devices.  

btw, what model system is this?

Thanks,

- Ryan


P.S. the reason it worked before is because it only walked the first
0 - 63 devices with in that range.  Not it walks the entire range
until it finds a device.


On Wed, 2002-10-09 at 06:44, phi wrote:
> Grant Grundler wrote:
> > The long delay happens during device discovery.
> > You could enable EARLY_BOOTUP_DEBUG in arch/parisc/kernel/pdc_cons.c
> > and add some printk's to the loop in system_map_inventory().
> > 
> > Only two pieces of code really get executed during that time.
> > One is the PDC calls - verify your firmware is the latest and if it
> > isn't, please update.  The other might be GSC buswalk code. I thought
> > the bus's under U2 are walked to detect devices not listed by PDC.
> > But I don't know exactly when that occurs in the boot sequence.
> > 
> > grant
> 
> My Firmware is
> 
> Firmware Version  5.2
> Duplex Console IO Dependent Code (IODC) revision 1
> Boot IO Dependent Code (IODC) revision 153
> 
> 
> Dunno if this is good enuff. At least it works for old kernel.
> 
> 
> ==================================================================
> 
> printk() into walk_native_bus() as follow shos this.
> 
> static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high,
>                             struct parisc_device *parent)
> {
>         int i, devices_found = 0;
>         unsigned long hpa = io_io_low;
>         struct hardware_path path;
> 
> printk("1.1 low=0x%08x high=0x%08x\n",io_io_low,io_io_high);
>         get_node_path(parent, &path);
>         do {
> printk("1.2 i=%d hpa=0x%08x\n",0,hpa);
>                 for (i = 0; i < MAX_NATIVE_DEVICES; i++, hpa +=
> NATIVE_DEVICE_OF
> FSET) {
>                         struct parisc_device *dev;
> 
>                         /* Was the device already added by Firmware? */
>                         dev = find_device_by_addr(hpa);
>                         if (!dev) {
>                                 path.mod = i;
> printk("1.3 i=%d hpa=0x%08x\n",i,hpa);
>                                 dev = alloc_pa_dev(hpa, &path);
>                                 if (!dev)
>                                         continue;
> 
> printk("1.4\n");
>                                 register_parisc_device(dev);
>                                 devices_found++;
>                         }
>                         walk_lower_bus(dev);
>                 }
>         } while (!devices_found && hpa < io_io_high);
> }
> 
> 1.1 low=0xfff80000 high=0xfffc0000
> 1.2 i=0 hpa=0xfff80000
> 1.3 i=0 hpa=0xfff80000
> 1.3 i=1 hpa=0xfff81000
> 1.3 i=2 hpa=0xfff82000
> 1.3 i=3 hpa=0xfff83000
> 1.3 i=4 hpa=0xfff84000
> 1.3 i=5 hpa=0xfff85000
> 1.3 i=6 hpa=0xfff86000
> 1.3 i=7 hpa=0xfff87000
> 1.3 i=8 hpa=0xfff88000
> 1.4
> 1.1 low=0xf2000000 high=0xf4000000
> 1.2 i=0 hpa=0xf2000000
> 1.3 i=1 hpa=0xf2001000
> 1.4
> 1.3 i=2 hpa=0xf2002000
> 1.3 i=3 hpa=0xf2003000
> 1.4
> 1.3 i=4 hpa=0xf2004000
> 1.3 i=5 hpa=0xf2005000
> 1.3 i=6 hpa=0xf2006000
> 1.3 i=7 hpa=0xf2007000
> 1.3 i=8 hpa=0xf2008000
> 1.3 i=9 hpa=0xf2009000
> 1.3 i=10 hpa=0xf200a000
> 1.3 i=11 hpa=0xf200b000
> 1.3 i=13 hpa=0xf200d000
> 1.3 i=14 hpa=0xf200e000
> 1.3 i=15 hpa=0xf200f000
> 1.3 i=16 hpa=0xf2010000
> 1.3 i=17 hpa=0xf2011000
> 1.3 i=18 hpa=0xf2012000
> 1.3 i=19 hpa=0xf2013000
> 1.3 i=20 hpa=0xf2014000
> 1.3 i=21 hpa=0xf2015000
> 1.3 i=22 hpa=0xf2016000
> 1.3 i=23 hpa=0xf2017000
> 1.3 i=24 hpa=0xf2018000
> 1.3 i=25 hpa=0xf2019000
> 1.3 i=26 hpa=0xf201a000
> 1.3 i=27 hpa=0xf201b000
> 1.3 i=28 hpa=0xf201c000
> 1.3 i=29 hpa=0xf201d000
> 1.3 i=30 hpa=0xf201e000
> 1.3 i=31 hpa=0xf201f000
> 1.3 i=32 hpa=0xf2020000
> 1.3 i=33 hpa=0xf2021000
> 1.3 i=34 hpa=0xf2022000
> 1.3 i=35 hpa=0xf2023000
> 1.3 i=36 hpa=0xf2024000
> 1.3 i=37 hpa=0xf2025000
> 1.3 i=38 hpa=0xf2026000
> 1.3 i=39 hpa=0xf2027000
> 1.3 i=40 hpa=0xf2028000
> 1.3 i=41 hpa=0xf2029000
> 1.3 i=42 hpa=0xf202a000
> 1.3 i=43 hpa=0xf202b000
> 1.3 i=44 hpa=0xf202c000
> 1.3 i=45 hpa=0xf202d000
> 1.3 i=46 hpa=0xf202e000
> 1.3 i=47 hpa=0xf202f000
> 1.3 i=48 hpa=0xf2030000
> 1.3 i=49 hpa=0xf2031000
> 1.3 i=50 hpa=0xf2032000
> 1.3 i=51 hpa=0xf2033000
> 1.3 i=52 hpa=0xf2034000
> 1.3 i=53 hpa=0xf2035000
> 1.3 i=54 hpa=0xf2036000
> 1.3 i=55 hpa=0xf2037000
> 1.3 i=56 hpa=0xf2038000
> 1.3 i=57 hpa=0xf2039000
> 1.3 i=58 hpa=0xf203a000
> 1.3 i=59 hpa=0xf203b000
> 1.3 i=60 hpa=0xf203c000
> 1.3 i=61 hpa=0xf203d000
> 1.3 i=62 hpa=0xf203e000
> 1.3 i=9 hpa=0xfff89000
> 1.3 i=10 hpa=0xfff8a000
> 1.4
> 1.1 low=0xf1000000 high=0xf2000000
> 1.2 i=0 hpa=0xf1000000
> 1.3 i=0 hpa=0xf1000000
> 1.3 i=1 hpa=0xf1001000
> 1.3 i=2 hpa=0xf1002000
> 1.3 i=3 hpa=0xf1003000
> 1.3 i=4 hpa=0xf1004000
> 1.3 i=5 hpa=0xf1005000
> 1.3 i=6 hpa=0xf1006000
> 1.3 i=7 hpa=0xf1007000
> 1.3 i=8 hpa=0xf1008000
> 1.3 i=9 hpa=0xf1009000
> 1.3 i=10 hpa=0xf100a000
> 1.3 i=11 hpa=0xf100b000
> 1.3 i=12 hpa=0xf100c000
> 1.3 i=13 hpa=0xf100d000
> 1.3 i=14 hpa=0xf100e000
> 1.3 i=15 hpa=0xf100f000
> 1.3 i=16 hpa=0xf1010000
> 1.3 i=17 hpa=0xf1011000
> 1.3 i=18 hpa=0xf1012000
> 1.3 i=19 hpa=0xf1013000
> 1.3 i=20 hpa=0xf1014000
> 1.3 i=21 hpa=0xf1015000
> 1.3 i=22 hpa=0xf1016000
> 1.3 i=23 hpa=0xf1017000
> 1.3 i=24 hpa=0xf1018000
> 1.3 i=25 hpa=0xf1019000
> 1.3 i=26 hpa=0xf101a000
> 1.3 i=27 hpa=0xf101b000
> 1.3 i=28 hpa=0xf101c000
> 1.3 i=29 hpa=0xf101d000
> 1.3 i=30 hpa=0xf101e000
> 1.3 i=31 hpa=0xf101f000
> 1.3 i=32 hpa=0xf1020000
> 1.3 i=33 hpa=0xf1021000
> 1.3 i=34 hpa=0xf1022000
> 1.3 i=35 hpa=0xf1023000
> 1.3 i=36 hpa=0xf1024000
> 1.3 i=37 hpa=0xf1025000
> 1.3 i=38 hpa=0xf1026000
> 1.3 i=39 hpa=0xf1027000
> 1.3 i=40 hpa=0xf1028000
> 1.3 i=41 hpa=0xf1029000
> 1.3 i=42 hpa=0xf102a000
> 1.3 i=43 hpa=0xf102b000
> 1.3 i=44 hpa=0xf102c000
> 1.3 i=45 hpa=0xf102d000
> 1.3 i=46 hpa=0xf102e000
> 1.3 i=47 hpa=0xf102f000
> 1.3 i=48 hpa=0xf1030000
> 1.3 i=49 hpa=0xf1031000
> 1.3 i=50 hpa=0xf1032000
> 1.3 i=51 hpa=0xf1033000
> 1.3 i=52 hpa=0xf1034000
> 1.3 i=53 hpa=0xf1035000
> 1.3 i=54 hpa=0xf1036000
> 1.3 i=55 hpa=0xf1037000
> 1.3 i=56 hpa=0xf1038000
> 1.3 i=57 hpa=0xf1039000
> 1.3 i=58 hpa=0xf103a000
> 1.3 i=59 hpa=0xf103b000
> 1.3 i=60 hpa=0xf103c000
> 1.3 i=61 hpa=0xf103d000
> 1.3 i=62 hpa=0xf103e000
> 1.2 i=0 hpa=0xf1040000
> 1.3 i=0 hpa=0xf1040000
> 1.3 i=1 hpa=0xf1041000
> 1.3 i=2 hpa=0xf1042000
> 1.3 i=3 hpa=0xf1043000
> 1.3 i=4 hpa=0xf1044000
> 1.3 i=5 hpa=0xf1045000
> 1.3 i=6 hpa=0xf1046000
> 1.3 i=7 hpa=0xf1047000
> 1.3 i=8 hpa=0xf1048000
> 1.3 i=9 hpa=0xf1049000
> 1.3 i=10 hpa=0xf104a000
> 1.3 i=11 hpa=0xf104b000
> 1.3 i=12 hpa=0xf104c000
> 1.3 i=13 hpa=0xf104d000
> 1.3 i=14 hpa=0xf104e000
> 1.3 i=15 hpa=0xf104f000
> 1.3 i=16 hpa=0xf1050000
> 1.3 i=17 hpa=0xf1051000
> 1.3 i=18 hpa=0xf1052000
> 1.3 i=19 hpa=0xf1053000
> 1.3 i=20 hpa=0xf1054000
> 1.3 i=21 hpa=0xf1055000
> 1.3 i=22 hpa=0xf1056000
> 1.3 i=23 hpa=0xf1057000
> 1.3 i=24 hpa=0xf1058000
> 1.3 i=25 hpa=0xf1059000
> 1.3 i=26 hpa=0xf105a000
> 1.3 i=27 hpa=0xf105b000
> 1.3 i=28 hpa=0xf105c000
> 1.3 i=29 hpa=0xf105d000
> 1.3 i=30 hpa=0xf105e000
> 1.3 i=31 hpa=0xf105f000
> 1.3 i=32 hpa=0xf1060000
> 1.3 i=33 hpa=0xf1061000
> 1.3 i=34 hpa=0xf1062000
> 1.3 i=35 hpa=0xf1063000
> 1.3 i=36 hpa=0xf1064000
> 1.3 i=37 hpa=0xf1065000
> 1.3 i=38 hpa=0xf1066000
> 1.3 i=39 hpa=0xf1067000
> 1.3 i=40 hpa=0xf1068000
> 1.3 i=41 hpa=0xf1069000
> 1.3 i=42 hpa=0xf106a000
> 1.3 i=43 hpa=0xf106b000
> 1.3 i=44 hpa=0xf106c000
> 1.3 i=45 hpa=0xf106d000
> 1.3 i=46 hpa=0xf106e000
> 1.3 i=47 hpa=0xf106f000
> 1.3 i=48 hpa=0xf1070000
> 1.3 i=49 hpa=0xf1071000
> 1.3 i=50 hpa=0xf1072000
> 1.3 i=51 hpa=0xf1073000
> 1.3 i=52 hpa=0xf1074000
> 1.3 i=53 hpa=0xf1075000
> 1.3 i=54 hpa=0xf1076000
> 1.3 i=55 hpa=0xf1077000
> 1.3 i=56 hpa=0xf1078000
> 1.3 i=57 hpa=0xf1079000
> 1.3 i=58 hpa=0xf107a000
> 1.3 i=59 hpa=0xf107b000
> 1.3 i=60 hpa=0xf107c000
> 1.3 i=61 hpa=0xf107d000
> 1.3 i=62 hpa=0xf107e000
> 1.3 i=63 hpa=0xf107f000
> 1.2 i=0 hpa=0xf1080000
> 1.3 i=0 hpa=0xf1080000
> 1.3 i=1 hpa=0xf1081000
> 1.3 i=2 hpa=0xf1082000
> 1.3 i=3 hpa=0xf1083000
> 1.3 i=4 hpa=0xf1084000
> 1.3 i=5 hpa=0xf1085000
> 1.3 i=6 hpa=0xf1086000
> 1.3 i=7 hpa=0xf1087000
> 1.3 i=8 hpa=0xf1088000
> 1.3 i=9 hpa=0xf1089000
> 1.3 i=10 hpa=0xf108a000
> 1.3 i=11 hpa=0xf108b000
> 1.3 i=12 hpa=0xf108c000
> 1.3 i=13 hpa=0xf108d000
> 1.3 i=14 hpa=0xf108e000
> 1.3 i=15 hpa=0xf108f000
> 1.3 i=16 hpa=0xf1090000
> 1.3 i=17 hpa=0xf1091000
> 1.3 i=18 hpa=0xf1092000
> 1.3 i=19 hpa=0xf1093000
> 1.3 i=20 hpa=0xf1094000
> 1.3 i=21 hpa=0xf1095000
> 1.3 i=22 hpa=0xf1096000
> 1.3 i=23 hpa=0xf1097000
> 1.3 i=24 hpa=0xf1098000
> 1.3 i=25 hpa=0xf1099000
> 1.3 i=26 hpa=0xf109a000
> 1.3 i=27 hpa=0xf109b000
> 1.3 i=28 hpa=0xf109c000
> 1.3 i=29 hpa=0xf109d000
> 1.3 i=30 hpa=0xf109e000
> 1.3 i=31 hpa=0xf109f000
> 1.3 i=32 hpa=0xf10a0000
> 1.3 i=33 hpa=0xf10a1000
> 1.3 i=34 hpa=0xf10a2000
> 1.3 i=35 hpa=0xf10a3000
> 1.3 i=36 hpa=0xf10a4000
> 1.3 i=37 hpa=0xf10a5000
> 1.3 i=38 hpa=0xf10a6000
> 1.3 i=39 hpa=0xf10a7000
> 1.3 i=40 hpa=0xf10a8000
> 1.3 i=41 hpa=0xf10a9000
> 1.3 i=42 hpa=0xf10aa000
> 1.3 i=43 hpa=0xf10ab000
> 1.3 i=44 hpa=0xf10ac000
> 1.3 i=45 hpa=0xf10ad000
> 1.3 i=46 hpa=0xf10ae000
> 1.3 i=47 hpa=0xf10af000
> 1.3 i=48 hpa=0xf10b0000
> 1.3 i=49 hpa=0xf10b1000
> 1.3 i=50 hpa=0xf10b2000
> 1.3 i=51 hpa=0xf10b3000
> 1.3 i=52 hpa=0xf10b4000
> 1.3 i=53 hpa=0xf10b5000
> 1.3 i=54 hpa=0xf10b6000
> 1.3 i=55 hpa=0xf10b7000
> 1.3 i=56 hpa=0xf10b8000
> 1.3 i=57 hpa=0xf10b9000
> 1.3 i=58 hpa=0xf10ba000
> 1.3 i=59 hpa=0xf10bb000
> 1.3 i=60 hpa=0xf10bc000
> 1.3 i=61 hpa=0xf10bd000
> 1.3 i=62 hpa=0xf10be000
> 1.3 i=63 hpa=0xf10bf000
> 1.2 i=0 hpa=0xf10c0000
> 
> 
> I am not knowledeable enough to tell if the range to walk on is valid or not,
> but it is way too  much for my config.
> 
> I wonder if this functin got the range correctly
> void walk_lower_bus(struct parisc_device *dev)
> {
>         unsigned long io_io_low, io_io_high;
> 
>         if(!BUS_CONVERTER(dev) || IS_LOWER_PORT(dev))
>                 return;
> 
>         io_io_low = ((unsigned long)(signed int)READ_IO_IO_LOW(dev) +
> ~FLEX_MASK
> ) & FLEX_MASK;
>         io_io_high = ((unsigned long)(signed int)READ_IO_IO_HIGH(dev) +
> ~FLEX_MA
> SK) & FLEX_MASK;
> 
>         walk_native_bus(io_io_low, io_io_high, dev);
> }
> 
> 
> For the time being I enforce
> 
> io_io_high=io_io_low+(MAX_NATIVE_DEVICES*NATIVE_DEVICE_OFFSET);
> 
> In the above function which as the effect of shortening the loop and boot ok.
> Dunno if this hack make sense, may be I would loose some devices, but I don't
> plan to add any anyway.
> 
> Phi
> 
> 
> --
> mailto:Philippe_Benard@hp.com [ HPS-SE HP-UX kernel debugging tools ]
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




From - Thu Nov 08 21:24:59 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:16424

I've seen it on a J200. Just haven't been doing much with it, and stuck
with older kernel until I had time to dig into it.=20

00000000-17ffffff : System RAM
  00000000-000009ff : PDC data (Page Zero)
  00100000-002f7fff : Kernel code
  002f8000-003f3677 : Kernel data
f0190000-f0190000 : lcd_cmd
f0190001-f0190001 : lcd_data
f3f80000-f3fbffff : GSC Bus [8/]
  f3f80000-f3f80fff : GSC SCSI (Zalon)
f3fc0000-ffbfffff : GSC Bus [10/]
  fc000000-ffbfffff : EISA
    fc000000-fc000fff : EISA Bus Adapter
ffc00000-ffdfffff : GSC Bus [8/]
  ffd00000-ffdfffff : Lasi
    ffd00000-ffd00fff : Lasi
    ffd02000-ffd02fff : Parallel
    ffd04000-ffd04fff : Lasi Harmony
    ffd05000-ffd05fff : Serial RS232
    ffd06000-ffd06fff : Lasi SCSI
    ffd07000-ffd07fff : Apricot
    ffd08000-ffd08fff : Lasi psaux
ffe00000-ffe3ffff : GSC Bus [10/]
  ffe00000-ffe00fff : Wax
  ffe01000-ffe01fff : HP SDC
  ffe02000-ffe02fff : Serial RS232
fff80000-fffaffff : Central Bus
  fff88000-fff88fff : U2/Uturn
  fff8a000-fff8afff : U2/Uturn
  fffa0000-fffa0fff : CPU
fffb0000-fffdffff : Local Broadcast
fffe0000-ffffffff : Global Broadcast


Although I am not 100% certain that it's the same thing, as I've never
waited long enough for that message to go away.

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216


> -----Original Message-----
> From: Ryan Bradetich [mailto:rbradetich@uswest.net]=20
> Sent: Wednesday, October 09, 2002 9:05 AM
> To: phi
> Cc: Grant Grundler; parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] boot (micro) hang
>=20
>=20
> *sigh* =20
>=20
> This is due to a change I made to detect devices on the E=20
> class systems.
>=20
> Before we encountered the E Class systems, the devices were always at
> the bottom of the range, but E Class put them at the top. =20
> The function
> will break out once a device is found ... it appears that your system
> also has the devices towards the top of the io range.
>=20
> post the contents of /proc/iomem and I can verify this for sure.  We
> need to come up with a better way for discovering these devices. =20
>=20
> btw, what model system is this?
>=20
> Thanks,
>=20
> - Ryan
>=20
>=20
> P.S. the reason it worked before is because it only walked the first
> 0 - 63 devices with in that range.  Not it walks the entire range
> until it finds a device.
>=20
>=20
> On Wed, 2002-10-09 at 06:44, phi wrote:
> > Grant Grundler wrote:
> > > The long delay happens during device discovery.
> > > You could enable EARLY_BOOTUP_DEBUG in=20
> arch/parisc/kernel/pdc_cons.c
> > > and add some printk's to the loop in system_map_inventory().
> > >=20
> > > Only two pieces of code really get executed during that time.
> > > One is the PDC calls - verify your firmware is the latest=20
> and if it
> > > isn't, please update.  The other might be GSC buswalk=20
> code. I thought
> > > the bus's under U2 are walked to detect devices not listed by PDC.
> > > But I don't know exactly when that occurs in the boot sequence.
> > >=20
> > > grant
> >=20
> > My Firmware is
> >=20
> > Firmware Version  5.2
> > Duplex Console IO Dependent Code (IODC) revision 1
> > Boot IO Dependent Code (IODC) revision 153
> >=20
> >=20
> > Dunno if this is good enuff. At least it works for old kernel.
> >=20
> >=20
> > =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> >=20
> > printk() into walk_native_bus() as follow shos this.
> >=20
> > static void walk_native_bus(unsigned long io_io_low,=20
> unsigned long io_io_high,
> >                             struct parisc_device *parent)
> > {
> >         int i, devices_found =3D 0;
> >         unsigned long hpa =3D io_io_low;
> >         struct hardware_path path;
> >=20
> > printk("1.1 low=3D0x%08x high=3D0x%08x\n",io_io_low,io_io_high);
> >         get_node_path(parent, &path);
> >         do {
> > printk("1.2 i=3D%d hpa=3D0x%08x\n",0,hpa);
> >                 for (i =3D 0; i < MAX_NATIVE_DEVICES; i++, hpa +=3D
> > NATIVE_DEVICE_OF
> > FSET) {
> >                         struct parisc_device *dev;
> >=20
> >                         /* Was the device already added by=20
> Firmware? */
> >                         dev =3D find_device_by_addr(hpa);
> >                         if (!dev) {
> >                                 path.mod =3D i;
> > printk("1.3 i=3D%d hpa=3D0x%08x\n",i,hpa);
> >                                 dev =3D alloc_pa_dev(hpa, &path);
> >                                 if (!dev)
> >                                         continue;
> >=20
> > printk("1.4\n");
> >                                 register_parisc_device(dev);
> >                                 devices_found++;
> >                         }
> >                         walk_lower_bus(dev);
> >                 }
> >         } while (!devices_found && hpa < io_io_high);
> > }
> >=20
> > 1.1 low=3D0xfff80000 high=3D0xfffc0000
> > 1.2 i=3D0 hpa=3D0xfff80000
> > 1.3 i=3D0 hpa=3D0xfff80000
> > 1.3 i=3D1 hpa=3D0xfff81000
> > 1.3 i=3D2 hpa=3D0xfff82000
> > 1.3 i=3D3 hpa=3D0xfff83000
> > 1.3 i=3D4 hpa=3D0xfff84000
> > 1.3 i=3D5 hpa=3D0xfff85000
> > 1.3 i=3D6 hpa=3D0xfff86000
> > 1.3 i=3D7 hpa=3D0xfff87000
> > 1.3 i=3D8 hpa=3D0xfff88000
> > 1.4
> > 1.1 low=3D0xf2000000 high=3D0xf4000000
> > 1.2 i=3D0 hpa=3D0xf2000000
> > 1.3 i=3D1 hpa=3D0xf2001000
> > 1.4
> > 1.3 i=3D2 hpa=3D0xf2002000
> > 1.3 i=3D3 hpa=3D0xf2003000
> > 1.4
> > 1.3 i=3D4 hpa=3D0xf2004000
> > 1.3 i=3D5 hpa=3D0xf2005000
> > 1.3 i=3D6 hpa=3D0xf2006000
> > 1.3 i=3D7 hpa=3D0xf2007000
> > 1.3 i=3D8 hpa=3D0xf2008000
> > 1.3 i=3D9 hpa=3D0xf2009000
> > 1.3 i=3D10 hpa=3D0xf200a000
> > 1.3 i=3D11 hpa=3D0xf200b000
> > 1.3 i=3D13 hpa=3D0xf200d000
> > 1.3 i=3D14 hpa=3D0xf200e000
> > 1.3 i=3D15 hpa=3D0xf200f000
> > 1.3 i=3D16 hpa=3D0xf2010000
> > 1.3 i=3D17 hpa=3D0xf2011000
> > 1.3 i=3D18 hpa=3D0xf2012000
> > 1.3 i=3D19 hpa=3D0xf2013000
> > 1.3 i=3D20 hpa=3D0xf2014000
> > 1.3 i=3D21 hpa=3D0xf2015000
> > 1.3 i=3D22 hpa=3D0xf2016000
> > 1.3 i=3D23 hpa=3D0xf2017000
> > 1.3 i=3D24 hpa=3D0xf2018000
> > 1.3 i=3D25 hpa=3D0xf2019000
> > 1.3 i=3D26 hpa=3D0xf201a000
> > 1.3 i=3D27 hpa=3D0xf201b000
> > 1.3 i=3D28 hpa=3D0xf201c000
> > 1.3 i=3D29 hpa=3D0xf201d000
> > 1.3 i=3D30 hpa=3D0xf201e000
> > 1.3 i=3D31 hpa=3D0xf201f000
> > 1.3 i=3D32 hpa=3D0xf2020000
> > 1.3 i=3D33 hpa=3D0xf2021000
> > 1.3 i=3D34 hpa=3D0xf2022000
> > 1.3 i=3D35 hpa=3D0xf2023000
> > 1.3 i=3D36 hpa=3D0xf2024000
> > 1.3 i=3D37 hpa=3D0xf2025000
> > 1.3 i=3D38 hpa=3D0xf2026000
> > 1.3 i=3D39 hpa=3D0xf2027000
> > 1.3 i=3D40 hpa=3D0xf2028000
> > 1.3 i=3D41 hpa=3D0xf2029000
> > 1.3 i=3D42 hpa=3D0xf202a000
> > 1.3 i=3D43 hpa=3D0xf202b000
> > 1.3 i=3D44 hpa=3D0xf202c000
> > 1.3 i=3D45 hpa=3D0xf202d000
> > 1.3 i=3D46 hpa=3D0xf202e000
> > 1.3 i=3D47 hpa=3D0xf202f000
> > 1.3 i=3D48 hpa=3D0xf2030000
> > 1.3 i=3D49 hpa=3D0xf2031000
> > 1.3 i=3D50 hpa=3D0xf2032000
> > 1.3 i=3D51 hpa=3D0xf2033000
> > 1.3 i=3D52 hpa=3D0xf2034000
> > 1.3 i=3D53 hpa=3D0xf2035000
> > 1.3 i=3D54 hpa=3D0xf2036000
> > 1.3 i=3D55 hpa=3D0xf2037000
> > 1.3 i=3D56 hpa=3D0xf2038000
> > 1.3 i=3D57 hpa=3D0xf2039000
> > 1.3 i=3D58 hpa=3D0xf203a000
> > 1.3 i=3D59 hpa=3D0xf203b000
> > 1.3 i=3D60 hpa=3D0xf203c000
> > 1.3 i=3D61 hpa=3D0xf203d000
> > 1.3 i=3D62 hpa=3D0xf203e000
> > 1.3 i=3D9 hpa=3D0xfff89000
> > 1.3 i=3D10 hpa=3D0xfff8a000
> > 1.4
> > 1.1 low=3D0xf1000000 high=3D0xf2000000
> > 1.2 i=3D0 hpa=3D0xf1000000
> > 1.3 i=3D0 hpa=3D0xf1000000
> > 1.3 i=3D1 hpa=3D0xf1001000
> > 1.3 i=3D2 hpa=3D0xf1002000
> > 1.3 i=3D3 hpa=3D0xf1003000
> > 1.3 i=3D4 hpa=3D0xf1004000
> > 1.3 i=3D5 hpa=3D0xf1005000
> > 1.3 i=3D6 hpa=3D0xf1006000
> > 1.3 i=3D7 hpa=3D0xf1007000
> > 1.3 i=3D8 hpa=3D0xf1008000
> > 1.3 i=3D9 hpa=3D0xf1009000
> > 1.3 i=3D10 hpa=3D0xf100a000
> > 1.3 i=3D11 hpa=3D0xf100b000
> > 1.3 i=3D12 hpa=3D0xf100c000
> > 1.3 i=3D13 hpa=3D0xf100d000
> > 1.3 i=3D14 hpa=3D0xf100e000
> > 1.3 i=3D15 hpa=3D0xf100f000
> > 1.3 i=3D16 hpa=3D0xf1010000
> > 1.3 i=3D17 hpa=3D0xf1011000
> > 1.3 i=3D18 hpa=3D0xf1012000
> > 1.3 i=3D19 hpa=3D0xf1013000
> > 1.3 i=3D20 hpa=3D0xf1014000
> > 1.3 i=3D21 hpa=3D0xf1015000
> > 1.3 i=3D22 hpa=3D0xf1016000
> > 1.3 i=3D23 hpa=3D0xf1017000
> > 1.3 i=3D24 hpa=3D0xf1018000
> > 1.3 i=3D25 hpa=3D0xf1019000
> > 1.3 i=3D26 hpa=3D0xf101a000
> > 1.3 i=3D27 hpa=3D0xf101b000
> > 1.3 i=3D28 hpa=3D0xf101c000
> > 1.3 i=3D29 hpa=3D0xf101d000
> > 1.3 i=3D30 hpa=3D0xf101e000
> > 1.3 i=3D31 hpa=3D0xf101f000
> > 1.3 i=3D32 hpa=3D0xf1020000
> > 1.3 i=3D33 hpa=3D0xf1021000
> > 1.3 i=3D34 hpa=3D0xf1022000
> > 1.3 i=3D35 hpa=3D0xf1023000
> > 1.3 i=3D36 hpa=3D0xf1024000
> > 1.3 i=3D37 hpa=3D0xf1025000
> > 1.3 i=3D38 hpa=3D0xf1026000
> > 1.3 i=3D39 hpa=3D0xf1027000
> > 1.3 i=3D40 hpa=3D0xf1028000
> > 1.3 i=3D41 hpa=3D0xf1029000
> > 1.3 i=3D42 hpa=3D0xf102a000
> > 1.3 i=3D43 hpa=3D0xf102b000
> > 1.3 i=3D44 hpa=3D0xf102c000
> > 1.3 i=3D45 hpa=3D0xf102d000
> > 1.3 i=3D46 hpa=3D0xf102e000
> > 1.3 i=3D47 hpa=3D0xf102f000
> > 1.3 i=3D48 hpa=3D0xf1030000
> > 1.3 i=3D49 hpa=3D0xf1031000
> > 1.3 i=3D50 hpa=3D0xf1032000
> > 1.3 i=3D51 hpa=3D0xf1033000
> > 1.3 i=3D52 hpa=3D0xf1034000
> > 1.3 i=3D53 hpa=3D0xf1035000
> > 1.3 i=3D54 hpa=3D0xf1036000
> > 1.3 i=3D55 hpa=3D0xf1037000
> > 1.3 i=3D56 hpa=3D0xf1038000
> > 1.3 i=3D57 hpa=3D0xf1039000
> > 1.3 i=3D58 hpa=3D0xf103a000
> > 1.3 i=3D59 hpa=3D0xf103b000
> > 1.3 i=3D60 hpa=3D0xf103c000
> > 1.3 i=3D61 hpa=3D0xf103d000
> > 1.3 i=3D62 hpa=3D0xf103e000
> > 1.2 i=3D0 hpa=3D0xf1040000
> > 1.3 i=3D0 hpa=3D0xf1040000
> > 1.3 i=3D1 hpa=3D0xf1041000
> > 1.3 i=3D2 hpa=3D0xf1042000
> > 1.3 i=3D3 hpa=3D0xf1043000
> > 1.3 i=3D4 hpa=3D0xf1044000
> > 1.3 i=3D5 hpa=3D0xf1045000
> > 1.3 i=3D6 hpa=3D0xf1046000
> > 1.3 i=3D7 hpa=3D0xf1047000
> > 1.3 i=3D8 hpa=3D0xf1048000
> > 1.3 i=3D9 hpa=3D0xf1049000
> > 1.3 i=3D10 hpa=3D0xf104a000
> > 1.3 i=3D11 hpa=3D0xf104b000
> > 1.3 i=3D12 hpa=3D0xf104c000
> > 1.3 i=3D13 hpa=3D0xf104d000
> > 1.3 i=3D14 hpa=3D0xf104e000
> > 1.3 i=3D15 hpa=3D0xf104f000
> > 1.3 i=3D16 hpa=3D0xf1050000
> > 1.3 i=3D17 hpa=3D0xf1051000
> > 1.3 i=3D18 hpa=3D0xf1052000
> > 1.3 i=3D19 hpa=3D0xf1053000
> > 1.3 i=3D20 hpa=3D0xf1054000
> > 1.3 i=3D21 hpa=3D0xf1055000
> > 1.3 i=3D22 hpa=3D0xf1056000
> > 1.3 i=3D23 hpa=3D0xf1057000
> > 1.3 i=3D24 hpa=3D0xf1058000
> > 1.3 i=3D25 hpa=3D0xf1059000
> > 1.3 i=3D26 hpa=3D0xf105a000
> > 1.3 i=3D27 hpa=3D0xf105b000
> > 1.3 i=3D28 hpa=3D0xf105c000
> > 1.3 i=3D29 hpa=3D0xf105d000
> > 1.3 i=3D30 hpa=3D0xf105e000
> > 1.3 i=3D31 hpa=3D0xf105f000
> > 1.3 i=3D32 hpa=3D0xf1060000
> > 1.3 i=3D33 hpa=3D0xf1061000
> > 1.3 i=3D34 hpa=3D0xf1062000
> > 1.3 i=3D35 hpa=3D0xf1063000
> > 1.3 i=3D36 hpa=3D0xf1064000
> > 1.3 i=3D37 hpa=3D0xf1065000
> > 1.3 i=3D38 hpa=3D0xf1066000
> > 1.3 i=3D39 hpa=3D0xf1067000
> > 1.3 i=3D40 hpa=3D0xf1068000
> > 1.3 i=3D41 hpa=3D0xf1069000
> > 1.3 i=3D42 hpa=3D0xf106a000
> > 1.3 i=3D43 hpa=3D0xf106b000
> > 1.3 i=3D44 hpa=3D0xf106c000
> > 1.3 i=3D45 hpa=3D0xf106d000
> > 1.3 i=3D46 hpa=3D0xf106e000
> > 1.3 i=3D47 hpa=3D0xf106f000
> > 1.3 i=3D48 hpa=3D0xf1070000
> > 1.3 i=3D49 hpa=3D0xf1071000
> > 1.3 i=3D50 hpa=3D0xf1072000
> > 1.3 i=3D51 hpa=3D0xf1073000
> > 1.3 i=3D52 hpa=3D0xf1074000
> > 1.3 i=3D53 hpa=3D0xf1075000
> > 1.3 i=3D54 hpa=3D0xf1076000
> > 1.3 i=3D55 hpa=3D0xf1077000
> > 1.3 i=3D56 hpa=3D0xf1078000
> > 1.3 i=3D57 hpa=3D0xf1079000
> > 1.3 i=3D58 hpa=3D0xf107a000
> > 1.3 i=3D59 hpa=3D0xf107b000
> > 1.3 i=3D60 hpa=3D0xf107c000
> > 1.3 i=3D61 hpa=3D0xf107d000
> > 1.3 i=3D62 hpa=3D0xf107e000
> > 1.3 i=3D63 hpa=3D0xf107f000
> > 1.2 i=3D0 hpa=3D0xf1080000
> > 1.3 i=3D0 hpa=3D0xf1080000
> > 1.3 i=3D1 hpa=3D0xf1081000
> > 1.3 i=3D2 hpa=3D0xf1082000
> > 1.3 i=3D3 hpa=3D0xf1083000
> > 1.3 i=3D4 hpa=3D0xf1084000
> > 1.3 i=3D5 hpa=3D0xf1085000
> > 1.3 i=3D6 hpa=3D0xf1086000
> > 1.3 i=3D7 hpa=3D0xf1087000
> > 1.3 i=3D8 hpa=3D0xf1088000
> > 1.3 i=3D9 hpa=3D0xf1089000
> > 1.3 i=3D10 hpa=3D0xf108a000
> > 1.3 i=3D11 hpa=3D0xf108b000
> > 1.3 i=3D12 hpa=3D0xf108c000
> > 1.3 i=3D13 hpa=3D0xf108d000
> > 1.3 i=3D14 hpa=3D0xf108e000
> > 1.3 i=3D15 hpa=3D0xf108f000
> > 1.3 i=3D16 hpa=3D0xf1090000
> > 1.3 i=3D17 hpa=3D0xf1091000
> > 1.3 i=3D18 hpa=3D0xf1092000
> > 1.3 i=3D19 hpa=3D0xf1093000
> > 1.3 i=3D20 hpa=3D0xf1094000
> > 1.3 i=3D21 hpa=3D0xf1095000
> > 1.3 i=3D22 hpa=3D0xf1096000
> > 1.3 i=3D23 hpa=3D0xf1097000
> > 1.3 i=3D24 hpa=3D0xf1098000
> > 1.3 i=3D25 hpa=3D0xf1099000
> > 1.3 i=3D26 hpa=3D0xf109a000
> > 1.3 i=3D27 hpa=3D0xf109b000
> > 1.3 i=3D28 hpa=3D0xf109c000
> > 1.3 i=3D29 hpa=3D0xf109d000
> > 1.3 i=3D30 hpa=3D0xf109e000
> > 1.3 i=3D31 hpa=3D0xf109f000
> > 1.3 i=3D32 hpa=3D0xf10a0000
> > 1.3 i=3D33 hpa=3D0xf10a1000
> > 1.3 i=3D34 hpa=3D0xf10a2000
> > 1.3 i=3D35 hpa=3D0xf10a3000
> > 1.3 i=3D36 hpa=3D0xf10a4000
> > 1.3 i=3D37 hpa=3D0xf10a5000
> > 1.3 i=3D38 hpa=3D0xf10a6000
> > 1.3 i=3D39 hpa=3D0xf10a7000
> > 1.3 i=3D40 hpa=3D0xf10a8000
> > 1.3 i=3D41 hpa=3D0xf10a9000
> > 1.3 i=3D42 hpa=3D0xf10aa000
> > 1.3 i=3D43 hpa=3D0xf10ab000
> > 1.3 i=3D44 hpa=3D0xf10ac000
> > 1.3 i=3D45 hpa=3D0xf10ad000
> > 1.3 i=3D46 hpa=3D0xf10ae000
> > 1.3 i=3D47 hpa=3D0xf10af000
> > 1.3 i=3D48 hpa=3D0xf10b0000
> > 1.3 i=3D49 hpa=3D0xf10b1000
> > 1.3 i=3D50 hpa=3D0xf10b2000
> > 1.3 i=3D51 hpa=3D0xf10b3000
> > 1.3 i=3D52 hpa=3D0xf10b4000
> > 1.3 i=3D53 hpa=3D0xf10b5000
> > 1.3 i=3D54 hpa=3D0xf10b6000
> > 1.3 i=3D55 hpa=3D0xf10b7000
> > 1.3 i=3D56 hpa=3D0xf10b8000
> > 1.3 i=3D57 hpa=3D0xf10b9000
> > 1.3 i=3D58 hpa=3D0xf10ba000
> > 1.3 i=3D59 hpa=3D0xf10bb000
> > 1.3 i=3D60 hpa=3D0xf10bc000
> > 1.3 i=3D61 hpa=3D0xf10bd000
> > 1.3 i=3D62 hpa=3D0xf10be000
> > 1.3 i=3D63 hpa=3D0xf10bf000
> > 1.2 i=3D0 hpa=3D0xf10c0000
> >=20
> >=20
> > I am not knowledeable enough to tell if the range to walk=20
> on is valid or not,
> > but it is way too  much for my config.
> >=20
> > I wonder if this functin got the range correctly
> > void walk_lower_bus(struct parisc_device *dev)
> > {
> >         unsigned long io_io_low, io_io_high;
> >=20
> >         if(!BUS_CONVERTER(dev) || IS_LOWER_PORT(dev))
> >                 return;
> >=20
> >         io_io_low =3D ((unsigned long)(signed=20
> int)READ_IO_IO_LOW(dev) +
> > ~FLEX_MASK
> > ) & FLEX_MASK;
> >         io_io_high =3D ((unsigned long)(signed=20
> int)READ_IO_IO_HIGH(dev) +
> > ~FLEX_MA
> > SK) & FLEX_MASK;
> >=20
> >         walk_native_bus(io_io_low, io_io_high, dev);
> > }
> >=20
> >=20
> > For the time being I enforce
> >=20
> > io_io_high=3Dio_io_low+(MAX_NATIVE_DEVICES*NATIVE_DEVICE_OFFSET);
> >=20
> > In the above function which as the effect of shortening the=20
> loop and boot ok.
> > Dunno if this hack make sense, may be I would loose some=20
> devices, but I don't
> > plan to add any anyway.
> >=20
> > Phi
> >=20
> >=20
> > --
> > mailto:Philippe_Benard@hp.com [ HPS-SE HP-UX kernel=20
> debugging tools ]
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >=20
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>=20


From - Thu Nov 08 21:24:59 2018
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From: phi <phi@hpfrcu81.france.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] boot (micro) hang
Date: Wed, 09 Oct 2002 16:20:55 +0200
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Cc: Grant Grundler <grundler@dsl2.external.hp.com>,
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To: Ryan Bradetich <rbradetich@uswest.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:16425

Ryan Bradetich wrote:
> 
> *sigh*
> 
> This is due to a change I made to detect devices on the E class systems.
> 
> Before we encountered the E Class systems, the devices were always at
> the bottom of the range, but E Class put them at the top.  The function
> will break out once a device is found ... it appears that your system
> also has the devices towards the top of the io range.
> 
> post the contents of /proc/iomem and I can verify this for sure.  We
> need to come up with a better way for discovering these devices.
> 
> btw, what model system is this?
> 


This is a recycled C180 

$ cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8000 (PCX-U)
cpu MHz         : 180.000000
model           : 9000/780/C180
model name      : Raven U 180 (9000/780/C180)
hversion        : 0x000059c0
sversion        : 0x00000481
I-cache         : 1024 KB
D-cache         : 1024 KB (WB)
ITLB entries    : 96
DTLB entries    : 96 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (16 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 359.62
software id     : 2012010320




$ cat /proc/iomem
00000000-07ffffff : System RAM
  00000000-000009ff : PDC data (Page Zero)
  00100000-002f9fff : Kernel code
  002fa000-003fb7bf : Kernel data
f1000000-f1ffffff : GSC Bus [10/]
f2000000-f3ffffff : GSC Bus [8/]
  f2000000-f2000fff : Dino
  f200c000-f200cfff : GSC SCSI (Zalon)
f4000000-fff7ffff : GSC Bus [8/]
  fa000000-fa000fff : sti (native)
  fa100000-fa4fffff : stifb mmio
  fb000000-fbffffff : stifb
  fc000000-ffbfffff : EISA
    fc000000-fc000fff : EISA Bus Adapter
  ffd00000-ffdfffff : Lasi
    ffd00000-ffd00fff : Lasi
    ffd02000-ffd02fff : Parallel
    ffd04000-ffd04fff : Lasi Harmony
    ffd05000-ffd05fff : Serial RS232
    ffd06000-ffd06fff : Lasi SCSI
    ffd07000-ffd07fff : Apricot
    ffd08000-ffd08fff : Lasi psaux
  ffe00000-ffefffff : Wax
    ffe00000-ffe00fff : Wax
    ffe01000-ffe01fff : HP SDC
    ffe02000-ffe02fff : Serial RS232
fff80000-fffaffff : Central Bus
  fff88000-fff88fff : U2/Uturn
  fff8a000-fff8afff : U2/Uturn
  fffa0000-fffa0fff : CPU
fffb0000-fffdffff : Local Broadcast
fffe0000-ffffffff : Global Broadcast


Cheers,
Phi


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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Burning CD Images difficulties: revisited
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Xref: news.gmane.org gmane.linux.ports.parisc:16426

Hello all!
I hope this is the right place for posting such a question:

- Ive tried MANY times  (5) burning an PA-RISC image to a bootable CD.
Couldnt make my system
boot from the CD though...the image Im talking about is this one:
http://pateam.esiee.fr/cd-images/palinux-0.9.3.iso

I have a 712/60 HP station, with an external SCSI CD-rom drive. The drive is
at ID "scsi.3.0".
I do the boot search after the POST routine, it finds my SCSI drive, its
brand and everything else.

When I try to boot from the CD the station simply does nothing. It tryes to
boot and returns
to the BOOT_ADMIN screen. ONCE I could get a message like "loading the
stuff, etc....OPS, KERNEL something".
And only ONCE...in one of the first CDs.

I did an extensive search on the Internet regarding this subject, and used
all hints found for
the burning software (yes, Im burning on XP, unfortunately all linuxes Ive
found doenst
have CD writers)...used Nero 5.5, CDRWin 4.0B and Blindwrite. None of them
seem to burn this image
correctly. And I say that with the knowledge after burning many, many
applications, games, etc
onto CD-R. Protected or not. For AIX, for Windows, for Solaris.
Weird...

The simptoms are:

- If I load the CD on a windows machine, everything seems to be fine,
DESPITE all filenames
being in CAPS... (bad sign?)
- On the 712/60 it wont boot.
- After booting into HP-UX, if I try to mount the CD it takes a looong time
and then the OS finally mounts it, but all filenames are capitalised AND
SOMETIMES, the ";1" suffix is appended to every filename. Ive seen
something about that on Nero, but on tabs that you simply cannot change.
(something like "doesnt append ;1 on...")
- I contacted a friend and co-worker which is a "Linux" guy, but he wasnt
willing to help much..
- Things that Ive read on the net like "Search the iso or the CD for the
#8000 sector and see if the MAGIC word is on there (CD001) and IT IS in all
Cds Ive searched.

I am REALLY interested in putting this thing to run up on my HP
station....but Im having a hard time...

Maybe someone could give some help?

Thanks for now.
[ ]s,
Jeffo - Brazil.



From - Thu Nov 08 21:25:00 2018
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From: jsoe0708@tiscali.be
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Subject: RE: [parisc-linux] Burning CD Images difficulties: revisited
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Hello Jeffo,

>-- Original Message --
>From: "Jeffo" <jeffo@pop.hsbc.com.br>
>To: <parisc-linux@lists.parisc-linux.org>
>Subject: [parisc-linux] Burning CD Images difficulties: revisited
>Date: Wed, 9 Oct 2002 13:26:38 -0300
>
>
>Hello all!
>I hope this is the right place for posting such a question:
>
>- I?ve tried MANY times  (5) burning an PA-RISC image to a bootable CD.
>Couldn?t make my system
>boot from the CD though...the image I?m talking about is this one:
>http://pateam.esiee.fr/cd-images/palinux-0.9.3.iso
>

I also used this CD (a long long time ago) to install also a 712/60 and do
not met any problem (not mentionned in FAQ).
So the first think I would do before burning my CD is to check with md5sum
the imaged downloaded.
If it is Ok check the burned image (dd if=/dev/rdsk/c1t2d0 of=- | md5sum;
should work).


>I have a 712/60 HP station, with an external SCSI CD-rom drive. The drive
>is
>at ID "scsi.3.0".
>I do the boot search after the POST routine, it finds my SCSI drive, its
>brand and everything else.
>
>When I try to boot from the CD the station simply does nothing. It tryes
>to
>boot and returns
>to the BOOT_ADMIN screen. ONCE I could get a message like "loading the
>stuff, etc....OPS, KERNEL something".
>And only ONCE...in one of the first CDs.
>
It should be that the begining of the CD is Ok but corrupted else where?

Goog luck,
    Joel

PS: md5sum for hpux should be available near: <http://hpux.connect.org.uk/>
(or a repository)




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From: jsoe0708@tiscali.be
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Subject: [parisc-linux] uaccess.h BUG (non-feature?)
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Hi all,

In the tools evms-1.2 I finaly found the solution in itself :-?

Here is the code:
...
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,18)
                rc = evms_cs_kernel_ioctl(new_disk, BLKGETSIZE64,
                                          (ulong) & new_disk->total_vsectors);
                if (!rc) {
                        /* convert bytes to 512 byte sectors */  
                        new_disk->total_vsectors >>= EVMS_VSECTOR_SIZE_SHIFT;
                } else
#endif
...

which seems to be kind to verify that kernel support this feature, isn't
it?

But hppa kernel put_kernel(x,ptr) did not send error return code in that
case of test (just printk bug message).

I do not know if it is the best patch but here is the simple solution I test:
...
#if BITS_PER_LONG == 32
#define LDD_KERNEL(ptr)         BUG(); __gu_err=-1;
#define LDD_USER(ptr)           BUG(); __gu_err=-1;
#define STD_KERNEL(x, ptr)      BUG(); __pu_err=-1;
#define STD_USER(x, ptr)        BUG(); __pu_err=-1;
#else
...

Seems to work even with annoying bug messages.

Thanks in advance for advise,
    Joel



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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phi wrote:
> My Firmware is
> 
> Firmware Version  5.2

sorry - I forgot to mention the FAQ explains how to determine
what the latest available rev is.

grant


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From: Christian Weerts <cw@familie-weerts.de>
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Subject: [parisc-linux] Which Memory to use on a 715/80?
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My 715/80 has a memory problem. Perhaps i need new memory.
Which is the right one to buy?

Greets,
    Christian

-- 
May the Source be with you...


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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: Re: [parisc-linux] Which Memory to use on a 715/80?
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Christian Weerts wrote:
> My 715/80 has a memory problem. Perhaps i need new memory.
> Which is the right one to buy?
you may probably find the answer here:
http://partsurfer.hp.com/cgi-bin/spi/main?sel_flg=modinfo&model=9000/715/80

HTH,


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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* Thibaut VARENE <varenet@esiee.fr> [021009 21:36]:
> Christian Weerts wrote:
> >My 715/80 has a memory problem. Perhaps i need new memory.
> >Which is the right one to buy?
> you may probably find the answer here:
> http://partsurfer.hp.com/cgi-bin/spi/main?sel_flg=modinfo&model=9000/715/80
> 
Thanks! That's what I'm looking for the whole last week.

Can I use other SIMMs with ECC from any other contributor,
or is the use of these SIMMs recommended?

Greets,
    Christian

-- 
May the Source be with you...


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Xref: news.gmane.org gmane.linux.ports.parisc:16433

On Wednesday, Oct 9, 2002, at 12:26 US/Eastern, Jeffo wrote:

> - I=B4ve tried MANY times  (5) burning an PA-RISC image to a bootable =
CD.
> Couldn=B4t make my system
> boot from the CD though...the image I=B4m talking about is this one:
> http://pateam.esiee.fr/cd-images/palinux-0.9.3.iso
>
> I have a 712/60 HP station, with an external SCSI CD-rom drive. The=20
> drive is
> at ID "scsi.3.0".
> I do the boot search after the POST routine, it finds my SCSI drive,=20=

> its
> brand and everything else.
>
> When I try to boot from the CD the station simply does nothing. It=20
> tryes to
> boot and returns
> to the BOOT_ADMIN screen. ONCE I could get a message like "loading the
> stuff, etc....OPS, KERNEL something".
> And only ONCE...in one of the first CDs.

Assuming that the ISO md5sum matches, I would suggest that you try=20
another CD drive. Also, if you have DIP switches/jumpers on the drive,=20=

make sure that the sector size is set to 512 and not 2048.

Have you burned other disks and successfully read them in this drive?=20
Under HP-UX? Perhaps try CDR/RW media with different dyes (ie, blue,=20
black, green, etc)?



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Xref: news.gmane.org gmane.linux.ports.parisc:16434

Grant Grundler wrote:
> 
> phi wrote:
> > My Firmware is
> >
> > Firmware Version  5.2
> 
> sorry - I forgot to mention the FAQ explains how to determine
> what the latest available rev is.
> 

The FAQ also say it is dangerous to update a firware and you do it only if
absolutly necessary.

In my situation I had the proof that booting the prev kernel was ok, so the FW
was good enough for this.

I own only 1 c180, and will not have another one, also based on your
recomandation I prefered discover what made the C180 hanging at boot, at least
I learned a bit more about the iotree discovery, while upgrading the firmware
to 6.1 would have learned me nothing and I could have lost my machine.

So all in all I am happy with my temp solution, I am glad that Ryan will
revisit his code and fix this regression for the benefit of all.

So apparently FW5.2 is good enough for what I am doing, the patch catalog only
give the latest version number and doesn't tell what diff there is between 5.2
and 6.1, without good explanation, there is no reason to upgrade.

The link 'HPUX-11 Patch Management' is obso and don't work (for me).

Thanx for your help and pointers.
Cheers,
Phi


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Subject: RE: [parisc-linux] Burning CD Images difficulties: revisited
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This message is in MIME format. Since your mail reader does not understand
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> -----Original Message-----
> From: Jeffo [mailto:jeffo@pop.hsbc.com.br]
> Hello all!
> I hope this is the right place for posting such a question:
>=20
> - I=B4ve tried MANY times  (5) burning an PA-RISC image to a=20
> bootable CD.
> Couldn=B4t make my system
> boot from the CD though...the image I=B4m talking about is this one:
> http://pateam.esiee.fr/cd-images/palinux-0.9.3.iso

Other replies indicate how to test the image.

>=20
> I have a 712/60 HP station, with an external SCSI CD-rom=20
> drive. The drive is
> at ID "scsi.3.0".
> I do the boot search after the POST routine, it finds my SCSI=20
> drive, its
> brand and everything else.

What brand is it? Run-time, there are no special requirements.

>=20
> When I try to boot from the CD the station simply does=20
> nothing. It tryes to boot and returns
> to the BOOT_ADMIN screen. ONCE I could get a message like "loading =
the
> stuff, etc....OPS, KERNEL something".
> And only ONCE...in one of the first CDs.

Boot time, the HP bootloader requires 2KByte block size. Most (if not =
all)
CDRom players use 512Byte blocksize by default. Try to figure out if =
your
CDRom can do a 2KByte blocksize.

>=20
> I did an extensive search on the Internet regarding this=20
> subject, and used all hints found for
> the burning software (yes, I=B4m burning on XP, unfortunately=20
> all linuxes I=B4ve found doens=B4t
> have CD writers)...used Nero 5.5, CDRWin 4.0B and Blindwrite.=20
> None of them seem to burn this image
> correctly. And I say that with the knowledge after burning many, many
> applications, games, etc
> onto CD-R. Protected or not. For AIX, for Windows, for Solaris.
> Weird...

As above, most likely, the image is not the problem, it's the blocksize =
the
drive provides to the system.

>=20
> The simptoms are:
>=20
> - If I load the CD on a windows machine, everything seems to be fine,
> DESPITE all filenames being in CAPS... (bad sign?)

iso9660 is a single-case (that's the all-caps) and versioned (that's =
the ;1)
filesystem.

> - On the 712/60 it won=B4t boot.
> - After booting into HP-UX, if I try to mount the CD it takes=20
> a looong time and then the OS finally mounts it, but all filenames =
are=20
> capitalised AND SOMETIMES, the ";1" suffix is appended to every =
filename.
I=B4ve seen
> something about that on Nero, but on tabs that you simply  cannot =
change.
> (something like "doesn=B4t append ;1 on...")
> - I contacted a friend and co-worker which is a "Linux" guy,=20
> but he wasn=B4t willing to help much..
> - Things that I=B4ve read on the net like "Search the iso or=20
> the CD for the #8000 sector and see if the MAGIC word is on there =
(CD001)=20
> and IT IS in all Cds I=B4ve searched.
>=20
> I am REALLY interested in putting this thing to run up on my HP
> station....but I=B4m having a hard time...

If you have no success on the CDRom player, try a netboot if you have =
an
other machine around. Check the website for more info. A search key can =
be
"bootp" since that's the network boot protocol.




Success
CBee

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
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charset=3Diso-8859-1">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2654.45">
<TITLE>RE: [parisc-linux] Burning CD Images difficulties: =
revisited</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: Jeffo [<A =
HREF=3D"mailto:jeffo@pop.hsbc.com.br">mailto:jeffo@pop.hsbc.com.br</A>]<=
/FONT>
<BR><FONT SIZE=3D2>&gt; Hello all!</FONT>
<BR><FONT SIZE=3D2>&gt; I hope this is the right place for posting such =
a question:</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; - I=B4ve tried MANY times&nbsp; (5) burning an =
PA-RISC image to a </FONT>
<BR><FONT SIZE=3D2>&gt; bootable CD.</FONT>
<BR><FONT SIZE=3D2>&gt; Couldn=B4t make my system</FONT>
<BR><FONT SIZE=3D2>&gt; boot from the CD though...the image I=B4m =
talking about is this one:</FONT>
<BR><FONT SIZE=3D2>&gt; <A =
HREF=3D"http://pateam.esiee.fr/cd-images/palinux-0.9.3.iso" =
TARGET=3D"_blank">http://pateam.esiee.fr/cd-images/palinux-0.9.3.iso</A>=
</FONT>
</P>

<P><FONT SIZE=3D2>Other replies indicate how to test the image.</FONT>
</P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; I have a 712/60 HP station, with an external =
SCSI CD-rom </FONT>
<BR><FONT SIZE=3D2>&gt; drive. The drive is</FONT>
<BR><FONT SIZE=3D2>&gt; at ID &quot;scsi.3.0&quot;.</FONT>
<BR><FONT SIZE=3D2>&gt; I do the boot search after the POST routine, it =
finds my SCSI </FONT>
<BR><FONT SIZE=3D2>&gt; drive, its</FONT>
<BR><FONT SIZE=3D2>&gt; brand and everything else.</FONT>
</P>

<P><FONT SIZE=3D2>What brand is it? Run-time, there are no special =
requirements.</FONT>
</P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; When I try to boot from the CD the station =
simply does </FONT>
<BR><FONT SIZE=3D2>&gt; nothing. It tryes to boot and returns</FONT>
<BR><FONT SIZE=3D2>&gt; to the BOOT_ADMIN screen. ONCE I could get a =
message like &quot;loading the</FONT>
<BR><FONT SIZE=3D2>&gt; stuff, etc....OPS, KERNEL =
something&quot;.</FONT>
<BR><FONT SIZE=3D2>&gt; And only ONCE...in one of the first CDs.</FONT>
</P>

<P><FONT SIZE=3D2>Boot time, the HP bootloader requires 2KByte block =
size. Most (if not all) CDRom players use 512Byte blocksize by default. =
Try to figure out if your CDRom can do a 2KByte blocksize.</FONT></P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; I did an extensive search on the Internet =
regarding this </FONT>
<BR><FONT SIZE=3D2>&gt; subject, and used all hints found for</FONT>
<BR><FONT SIZE=3D2>&gt; the burning software (yes, I=B4m burning on XP, =
unfortunately </FONT>
<BR><FONT SIZE=3D2>&gt; all linuxes I=B4ve found doens=B4t</FONT>
<BR><FONT SIZE=3D2>&gt; have CD writers)...used Nero 5.5, CDRWin 4.0B =
and Blindwrite. </FONT>
<BR><FONT SIZE=3D2>&gt; None of them seem to burn this image</FONT>
<BR><FONT SIZE=3D2>&gt; correctly. And I say that with the knowledge =
after burning many, many</FONT>
<BR><FONT SIZE=3D2>&gt; applications, games, etc</FONT>
<BR><FONT SIZE=3D2>&gt; onto CD-R. Protected or not. For AIX, for =
Windows, for Solaris.</FONT>
<BR><FONT SIZE=3D2>&gt; Weird...</FONT>
</P>

<P><FONT SIZE=3D2>As above, most likely, the image is not the problem, =
it's the blocksize the drive provides to the system.</FONT>
</P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; The simptoms are:</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; - If I load the CD on a windows machine, =
everything seems to be fine,</FONT>
<BR><FONT SIZE=3D2>&gt; DESPITE all filenames being in CAPS... (bad =
sign?)</FONT>
</P>

<P><FONT SIZE=3D2>iso9660 is a single-case (that's the all-caps) and =
versioned (that's the ;1) filesystem.</FONT>
</P>

<P><FONT SIZE=3D2>&gt; - On the 712/60 it won=B4t boot.</FONT>
<BR><FONT SIZE=3D2>&gt; - After booting into HP-UX, if I try to mount =
the CD it takes </FONT>
<BR><FONT SIZE=3D2>&gt; a looong time and then the OS finally mounts =
it, but all filenames are </FONT>
<BR><FONT SIZE=3D2>&gt; capitalised AND SOMETIMES, the &quot;;1&quot; =
suffix is appended to every filename. I=B4ve seen</FONT>
<BR><FONT SIZE=3D2>&gt; something about that on Nero, but on tabs that =
you simply&nbsp; cannot change.</FONT>
<BR><FONT SIZE=3D2>&gt; (something like &quot;doesn=B4t append ;1 =
on...&quot;)</FONT>
<BR><FONT SIZE=3D2>&gt; - I contacted a friend and co-worker which is a =
&quot;Linux&quot; guy, </FONT>
<BR><FONT SIZE=3D2>&gt; but he wasn=B4t willing to help much..</FONT>
<BR><FONT SIZE=3D2>&gt; - Things that I=B4ve read on the net like =
&quot;Search the iso or </FONT>
<BR><FONT SIZE=3D2>&gt; the CD for the #8000 sector and see if the =
MAGIC word is on there (CD001) </FONT>
<BR><FONT SIZE=3D2>&gt; and IT IS in all Cds I=B4ve searched.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; I am REALLY interested in putting this thing to =
run up on my HP</FONT>
<BR><FONT SIZE=3D2>&gt; station....but I=B4m having a hard =
time...</FONT>
</P>

<P><FONT SIZE=3D2>If you have no success on the CDRom player, try a =
netboot if you have an other machine around. Check the website for more =
info. A search key can be &quot;bootp&quot; since that's the network =
boot protocol.</FONT></P>
<BR>
<BR>
<BR>

<P><FONT SIZE=3D2>Success</FONT>
<BR><FONT SIZE=3D2>CBee</FONT>
</P>

</BODY>
</HTML>
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Xref: news.gmane.org gmane.linux.ports.parisc:16436

IT WORKED!


The difference?  Burn the .ISO on Easy CD Creator.

Thats all.

Thanks.



From - Thu Nov 08 21:25:00 2018
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>-- Original Message --
>From: "Jeffo" <jeffo@pop.hsbc.com.br>
>To: <parisc-linux@lists.parisc-linux.org>
>Subject: Re: [parisc-linux] Burning CD Images difficulties: revisited
>Date: Thu, 10 Oct 2002 10:28:01 -0300
>
>
>IT WORKED!
>
>
>The difference?  Burn the .ISO on Easy CD Creator.
>
>That?s all.
>
>Thanks.
>
great and enjoy,
    Joel



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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: Re: [parisc-linux] Which Memory to use on a 715/80?
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Well, don't think any other manufacturer made memory for the 715
series.  I have looked at Dataram and others, but they only seem to
have memory for the D,K,N,L, and A class servers.  What size are your
simms in your box?  I have some 8MB ones laying around here that I'm
not using.  It's the same memory that is used in the 712's.

derek


--- Christian Weerts <cw@familie-weerts.de> wrote:
> * Thibaut VARENE <varenet@esiee.fr> [021009 21:36]:
> > Christian Weerts wrote:
> > >My 715/80 has a memory problem. Perhaps i need new memory.
> > >Which is the right one to buy?
> > you may probably find the answer here:
> >
>
http://partsurfer.hp.com/cgi-bin/spi/main?sel_flg=modinfo&model=9000/715/80
> > 
> Thanks! That's what I'm looking for the whole last week.
> 
> Can I use other SIMMs with ECC from any other contributor,
> or is the use of these SIMMs recommended?
> 
> Greets,
>     Christian
> 
> -- 
> May the Source be with you...
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Phi,

Well if you knew an HP CE that could help you with the firmware update
it wouldn't have been that big a deal.  From your E-mail address you
look like you work for HP.  Our tools for updating firmware are
pre-burned on what we used to call the ECU disk.  That's how I updated
my firmware on my C180 to 6.3 (6.3 is for the C200/240 but runs fine on
my C180).  I perform firmware updates quite often on HP machines along
the whole product line and most of the time it is an effortless thing. 
Of course the tools use hardware folks use to update firmware are not
available to the general public.  The N and L class servers can be
updated now with just an HP-UX patch, but that doesn't help the Linux
folks.  My C180 doesn't hang at boot using the
palinux-2.4.18-pa55-20020715-netinst.iso image.  I completed the
install over the internet.  Not exactly sure why you are having
problems with hangs where I do not.  Are you using HP disks or third
party?  Are you running the boot-up in fastboot mode or normal test all
the memory mode?  If you are running fastboot I would say turn it off
and let it run self-test on your memory.  I found 2 bad simms when I
turned off fastboot on my machine.  I now run with fastboot on, but
it's a great tool to troubleshoot memory problems.  If you really want
to know what the difference in firmware revs are, I could get you that
info from my firmware CD's or from an HP service note.  That info I can
give you.  If you have any questions about my C180 set-up don't
hesitate to ask.  I'm currently helping a guy from HP Greely set-up his
C180.

Derek Engelhaupt
HP CE

--- phi <phi@hpfrcu81.france.hp.com> wrote:
> Grant Grundler wrote:
> > 
> > phi wrote:
> > > My Firmware is
> > >
> > > Firmware Version  5.2
> > 
> > sorry - I forgot to mention the FAQ explains how to determine
> > what the latest available rev is.
> > 
> 
> The FAQ also say it is dangerous to update a firware and you do it
> only if
> absolutly necessary.
> 
> In my situation I had the proof that booting the prev kernel was ok,
> so the FW
> was good enough for this.
> 
> I own only 1 c180, and will not have another one, also based on your
> recomandation I prefered discover what made the C180 hanging at boot,
> at least
> I learned a bit more about the iotree discovery, while upgrading the
> firmware
> to 6.1 would have learned me nothing and I could have lost my
> machine.
> 
> So all in all I am happy with my temp solution, I am glad that Ryan
> will
> revisit his code and fix this regression for the benefit of all.
> 
> So apparently FW5.2 is good enough for what I am doing, the patch
> catalog only
> give the latest version number and doesn't tell what diff there is
> between 5.2
> and 6.1, without good explanation, there is no reason to upgrade.
> 
> The link 'HPUX-11 Patch Management' is obso and don't work (for me).
> 
> Thanx for your help and pointers.
> Cheers,
> Phi
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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Subject: Re: [parisc-linux] Which Memory to use on a 715/80?
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Derek Engelhaupt wrote:
> Well, don't think any other manufacturer made memory for the 715
> series.  I have looked at Dataram and others, but they only seem to
> have memory for the D,K,N,L, and A class servers.

I thought Kingston *did* (maybe no more).
Might still check there.

grant


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> -----Original Message-----
> From: Grant Grundler [mailto:grundler@dsl2.external.hp.com]
> Sent: donderdag 10 oktober 2002 17:28
> To: Derek Engelhaupt
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Which Memory to use on a 715/80? 
> 
> 
> Derek Engelhaupt wrote:
> > Well, don't think any other manufacturer made memory for the 715
> > series.  I have looked at Dataram and others, but they only seem to
> > have memory for the D,K,N,L, and A class servers.
> 
> I thought Kingston *did* (maybe no more).

I recal by head (and might be wrong) to have used pc-based memory modules in
a 712/80. There was something with parity (it needs it or it hates it, don't
know).

Try what the bootloader says if you fit it with pc-based memory modules,
that have the same physical lay-out. (edo-ram is a term that comes to mind,
try it or it's predecessor).

I might be totaly wrong here, in those days (a former job) I was using both
SunSparc stations and HP 712 machines.

I don't give any guaranties....

Success

CBee

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<TITLE>RE: [parisc-linux] Which Memory to use on a 715/80? </TITLE>
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<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: Grant Grundler [<A =
HREF=3D"mailto:grundler@dsl2.external.hp.com">mailto:grundler@dsl2.exter=
nal.hp.com</A>]</FONT>
<BR><FONT SIZE=3D2>&gt; Sent: donderdag 10 oktober 2002 17:28</FONT>
<BR><FONT SIZE=3D2>&gt; To: Derek Engelhaupt</FONT>
<BR><FONT SIZE=3D2>&gt; Cc: parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>&gt; Subject: Re: [parisc-linux] Which Memory to use =
on a 715/80? </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Derek Engelhaupt wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; Well, don't think any other manufacturer =
made memory for the 715</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; series.&nbsp; I have looked at Dataram and =
others, but they only seem to</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; have memory for the D,K,N,L, and A class =
servers.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; I thought Kingston *did* (maybe no =
more).</FONT>
</P>

<P><FONT SIZE=3D2>I recal by head (and might be wrong) to have used =
pc-based memory modules in a 712/80. There was something with parity =
(it needs it or it hates it, don't know).</FONT></P>

<P><FONT SIZE=3D2>Try what the bootloader says if you fit it with =
pc-based memory modules, that have the same physical lay-out. (edo-ram =
is a term that comes to mind, try it or it's predecessor).</FONT></P>

<P><FONT SIZE=3D2>I might be totaly wrong here, in those days (a former =
job) I was using both SunSparc stations and HP 712 machines.</FONT>
</P>

<P><FONT SIZE=3D2>I don't give any guaranties....</FONT>
</P>

<P><FONT SIZE=3D2>Success</FONT>
</P>

<P><FONT SIZE=3D2>CBee</FONT>
</P>

</BODY>
</HTML>
------_=_NextPart_001_01C27072.90AA55A0--


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	hi
i'm still stuck with this *#! iodc call. I've cross check 
by using a dump of a A class, for layer[6] (btw unused layer 
are set to 0, not -1)hpa,mod,spa are all right. So I'm still
looking for any idea... I've a new track:

-I've read that while doing iodc INIT it can produce interrupt.
but interruption are not disable in my case, so do you think I need to
disable all interruption, and how ?

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] HPMC while doing iodc INIT_MOD
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Bruno Vidal wrote:
> I've read that while doing iodc INIT it can produce interrupt.
> but interruption are not disable in my case, so do you think I need to
> disable all interruption, and how ?

While IODC doesn't *use* interrupts (it polls), I guess IODC could
generate interrupts.  Normally I'd expect the IO_RESET_AND_CLEAR to
reset all IOSAPICs and thus disable IO interrupts.

I'm also wondering how this would work on an SMP machine. We would
need to "capture" all the CPUs and set the EIEM in each one.

You probably want to see how HPUX is handling this instead of
"re-inventing" it.

Can you make a patch available that we can review?
I'm happy to host that on gsyprf10 thought ftp.p-l.o/patches
would be the "right" place.

thanks,
grant


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From: Harri Haataja <harri.haataja@smilehouse.com>
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On Thu, Oct 10, 2002 at 05:34:47PM +0200, "Beerse, Corn" wrote:
> > -----Original Message-----
> > From: Grant Grundler [mailto:grundler@dsl2.external.hp.com]
> > Derek Engelhaupt wrote:
> > > Well, don't think any other manufacturer made memory for the 715
> > > series.  I have looked at Dataram and others, but they only seem
> > > to have memory for the D,K,N,L, and A class servers.
> > I thought Kingston *did* (maybe no more).
> I recal by head (and might be wrong) to have used pc-based memory
> modules in a 712/80. There was something with parity (it needs it or
> it hates it, don't know).

You usually hear that HP uses similiar form but completely different
ram. But that's mostly on 715/735/800, maybe 712 was different. That
would be a pleasant surprise.
Mostly you always want parity. I would doubt anything explicitly
demanding no parity.

> Try what the bootloader says if you fit it with pc-based memory
> modules, that have the same physical lay-out. (edo-ram is a term that
> comes to mind, try it or it's predecessor).

EDO AFAIK never occurs together with ECC so that's the word to avoid
when looking for ram for older workstations ad servers.
36-bit FPM True-parity ECC SIMMs are what work in, for example, DEC
Alpha AXPpci, Multia, SGI Indy, Indigo, matching Challenges, IBM RS6000
7006 and other machines of the era and most(?) pc's. No kind of EDO ram
works.

> I might be totaly wrong here, in those days (a former job) I was using
> both SunSparc stations and HP 712 machines.

Sparcstations mostly use weird rams like JEDEC DIMM's apart from the
very old ones that use 36-pin simm's that seem regular.


This is what I remember. No guarantees either.

-- 
I used to herd dairy cows. Now I herd lusers. Apart from the isolation,
I think I preferred the cows. They were better conversation, easier to
milk, and if they annoyed me enough, I could shoot them and eat them.
		-- Rodger Donaldson 


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From: E Frank Ball <frankb@efball.com>
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Subject: Re: [parisc-linux] Which Memory to use on a 715/80?
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On Thu, Oct 10, 2002 at 07:23:17PM +0300, Harri Haataja wrote:
} On Thu, Oct 10, 2002 at 05:34:47PM +0200, "Beerse, Corn" wrote:
} > > -----Original Message-----
} > > From: Grant Grundler [mailto:grundlerOdsl2.external.hp.com]
} > > Derek Engelhaupt wrote:
} > > > Well, don't think any other manufacturer made memory for the 715
} > > > series.  I have looked at Dataram and others, but they only seem
} > > > to have memory for the D,K,N,L, and A class servers.
} > > I thought Kingston *did* (maybe no more).
} > I recal by head (and might be wrong) to have used pc-based memory
} > modules in a 712/80. There was something with parity (it needs it or
} > it hates it, don't know).
} 
} You usually hear that HP uses similiar form but completely different
} ram. But that's mostly on 715/735/800, maybe 712 was different. That
} would be a pleasant surprise.

715/725/745 and the 712 all use the same type memory.  The 730/735 used
another type, and the 755 used a unique type.

-- 

   E Frank Ball                frankb@efball.com


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Subject: RE: [parisc-linux] Which Memory to use on a 715/80?
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> -----Original Message-----
> From: Harri Haataja [mailto:harri.haataja@smilehouse.com]
>=20
> On Thu, Oct 10, 2002 at 05:34:47PM +0200, "Beerse, Corn=E9" wrote:
> > > -----Original Message-----
> > > From: Grant Grundler [mailto:grundler@dsl2.external.hp.com]
> > > Derek Engelhaupt wrote:
> > > > Well, don't think any other manufacturer made memory for the =
715
> > > > series.  I have looked at Dataram and others, but they only =
seem
> > > > to have memory for the D,K,N,L, and A class servers.
> > > I thought Kingston *did* (maybe no more).
> > I recal by head (and might be wrong) to have used pc-based memory
> > modules in a 712/80. There was something with parity (it needs it =
or
> > it hates it, don't know).
>=20
> You usually hear that HP uses similiar form but completely different
> ram. But that's mostly on 715/735/800, maybe 712 was different. That
> would be a pleasant surprise.
> Mostly you always want parity. I would doubt anything explicitly
> demanding no parity.

Harri is right here, I was mixing SunSparc and HP-PARisk architectures. =
The
712 memory does NOT fit (without a hamer).

>=20
> > Try what the bootloader says if you fit it with pc-based memory
> > modules, that have the same physical lay-out. (edo-ram is a=20
> term that
> > comes to mind, try it or it's predecessor).
>=20
> EDO AFAIK never occurs together with ECC so that's the word to avoid
> when looking for ram for older workstations ad servers.
> 36-bit FPM True-parity ECC SIMMs are what work in, for example, DEC
> Alpha AXPpci, Multia, SGI Indy, Indigo=B2, matching Challenges,=20
> IBM RS6000
> 7006 and other machines of the era and most(?) pc's. No kind=20
> of EDO ram
> works.
>=20
> > I might be totaly wrong here, in those days (a former job)=20
> I was using
> > both SunSparc stations and HP 712 machines.
>=20
> Sparcstations mostly use weird rams like JEDEC DIMM's apart from the
> very old ones that use 36-pin simm's that seem regular.

Sun Sparc ELC and SunSparcClassic (and similar Sparc 4C architecture?) =
can
use the same memory modules as 486-PC's. Those are NOT edo ram as in
pentium-pc's, however they do fit... It might not be what Sun tells, it =
is
wat is currently running at home...

>=20
>=20
> This is what I remember. No guarantees either.

I've tried EDO ram in a SParc Classic but it does not show up. After a =
short
test (15 minutes power on and try to use it) I experienced no damage on =
both
processorboard or memory. Then, again: no guarantees...

>=20
> --=20
> I used to herd dairy cows. Now I herd lusers. Apart from the=20
> isolation,
> I think I preferred the cows. They were better conversation, easier =
to
> milk, and if they annoyed me enough, I could shoot them and eat them.
> 		-- Rodger Donaldson=20

Now I know where the name "tucows" comes from ;-)



CBee

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5.5.2654.45">
<TITLE>RE: [parisc-linux] Which Memory to use on a 715/80?</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: Harri Haataja [<A =
HREF=3D"mailto:harri.haataja@smilehouse.com">mailto:harri.haataja@smileh=
ouse.com</A>]</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; On Thu, Oct 10, 2002 at 05:34:47PM +0200, =
&quot;Beerse, Corn=E9&quot; wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; From: Grant Grundler [<A =
HREF=3D"mailto:grundler@dsl2.external.hp.com">mailto:grundler@dsl2.exter=
nal.hp.com</A>]</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; Derek Engelhaupt wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; &gt; Well, don't think any other =
manufacturer made memory for the 715</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; &gt; series.&nbsp; I have looked at =
Dataram and others, but they only seem</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; &gt; to have memory for the D,K,N,L, =
and A class servers.</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; I thought Kingston *did* (maybe no =
more).</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; I recal by head (and might be wrong) to =
have used pc-based memory</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; modules in a 712/80. There was something =
with parity (it needs it or</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; it hates it, don't know).</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; You usually hear that HP uses similiar form but =
completely different</FONT>
<BR><FONT SIZE=3D2>&gt; ram. But that's mostly on 715/735/800, maybe =
712 was different. That</FONT>
<BR><FONT SIZE=3D2>&gt; would be a pleasant surprise.</FONT>
<BR><FONT SIZE=3D2>&gt; Mostly you always want parity. I would doubt =
anything explicitly</FONT>
<BR><FONT SIZE=3D2>&gt; demanding no parity.</FONT>
</P>

<P><FONT SIZE=3D2>Harri is right here, I was mixing SunSparc and =
HP-PARisk architectures. The 712 memory does NOT fit (without a =
hamer).</FONT>
</P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; Try what the bootloader says if you fit it =
with pc-based memory</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; modules, that have the same physical =
lay-out. (edo-ram is a </FONT>
<BR><FONT SIZE=3D2>&gt; term that</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; comes to mind, try it or it's =
predecessor).</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; EDO AFAIK never occurs together with ECC so =
that's the word to avoid</FONT>
<BR><FONT SIZE=3D2>&gt; when looking for ram for older workstations ad =
servers.</FONT>
<BR><FONT SIZE=3D2>&gt; 36-bit FPM True-parity ECC SIMMs are what work =
in, for example, DEC</FONT>
<BR><FONT SIZE=3D2>&gt; Alpha AXPpci, Multia, SGI Indy, Indigo=B2, =
matching Challenges, </FONT>
<BR><FONT SIZE=3D2>&gt; IBM RS6000</FONT>
<BR><FONT SIZE=3D2>&gt; 7006 and other machines of the era and most(?) =
pc's. No kind </FONT>
<BR><FONT SIZE=3D2>&gt; of EDO ram</FONT>
<BR><FONT SIZE=3D2>&gt; works.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; I might be totaly wrong here, in those =
days (a former job) </FONT>
<BR><FONT SIZE=3D2>&gt; I was using</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; both SunSparc stations and HP 712 =
machines.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Sparcstations mostly use weird rams like JEDEC =
DIMM's apart from the</FONT>
<BR><FONT SIZE=3D2>&gt; very old ones that use 36-pin simm's that seem =
regular.</FONT>
</P>

<P><FONT SIZE=3D2>Sun Sparc ELC and SunSparcClassic (and similar Sparc =
4C architecture?) can use the same memory modules as 486-PC's. Those =
are NOT edo ram as in pentium-pc's, however they do fit... It might not =
be what Sun tells, it is wat is currently running at home...</FONT></P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; This is what I remember. No guarantees =
either.</FONT>
</P>

<P><FONT SIZE=3D2>I've tried EDO ram in a SParc Classic but it does not =
show up. After a short test (15 minutes power on and try to use it) I =
experienced no damage on both processorboard or memory. Then, again: no =
guarantees...</FONT></P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; -- </FONT>
<BR><FONT SIZE=3D2>&gt; I used to herd dairy cows. Now I herd lusers. =
Apart from the </FONT>
<BR><FONT SIZE=3D2>&gt; isolation,</FONT>
<BR><FONT SIZE=3D2>&gt; I think I preferred the cows. They were better =
conversation, easier to</FONT>
<BR><FONT SIZE=3D2>&gt; milk, and if they annoyed me enough, I could =
shoot them and eat them.</FONT>
<BR><FONT SIZE=3D2>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -- Rodger Donaldson </FONT>
</P>

<P><FONT SIZE=3D2>Now I know where the name &quot;tucows&quot; comes =
from ;-)</FONT>
</P>
<BR>
<BR>

<P><FONT SIZE=3D2>CBee</FONT>
</P>

</BODY>
</HTML>
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Hello list,

>>is there cvsup for hppa?
> 
> Do you speek about package.
> If yes, I also have a look in cvsup. And cvsup is written in 'pm3' (Modula3)
> which has a lot of platform dependent code and it is unfortunately only packaged
> for i386 . And I did not know if its successor cm3 is already pakaged :(.

I use rsync now. It works fine for me...

Best regards, Tilo



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hello,

what does happen if I compile my own kernel without HIL support? My 
machine runs as server without keyboard and mouse and I hope I must 
never use the keyboard ;-)

Best regards, Tilo



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Subject: Re: [parisc-linux] Which Memory to use on a 715/80?
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From: "Christian Weerts" <cw@familie-weerts.de>
Subject: [parisc-linux] Which Memory to use on a 715/80?


> My 715/80 has a memory problem. Perhaps i need new memory.
> Which is the right one to buy?

I've tried FPM Parity RAM in my 712 and it didn't work. I'm shure it's same
on 715,
but you can get it quite cheap on eBay.de (Computer/Workstations).
I have 48MB (6x8MB) spare modules, if you are interested, i sell them to
you. Send me an off list mail.

Greetings,
Yves...




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Greetings,=20

I'm compiling my own kernel and I have some questions.  My goal is to produ=
ce a
kernel that is as lightweight as possible, which implies disabling support =
for
hardware that is not found on this 712-60. =20

At this point, I apt-got kernel-source-2.4.19-hppa and unpacked it, and alr=
eady
selected the 7100LC/7300LC CPU option.  What else?  Has anybody compiled a =
FAQ
on parisc-linux that provides .config files optimized for each PA-RISC hard=
ware
or, alternately, a checklist of hardware one finds in product xxx, referenc=
ed by
Linux kernel feature or module name?=20

PS:  I don't subscribe to parisc-linux.  Please CC replies to this address.

--=20
Martin-=C9ric Racine, Espoo, Finland.
"Kas sa tahad mind? - Nej!!! =C4r du en idiot?!!"
http://www.pp.fishpool.fi/~q-funk/



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From: =?iso-8859-1?Q?Martin-=C9ric_Racine?= <q-funk@pp.fishpool.fi>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] hardware features of 712-60 ?
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On Fri, 11 Oct 2002, "Beerse, Corn=E9" wrote:

> > At this point, I apt-got kernel-source-2.4.19-hppa and=20
> > unpacked it, and already
> > selected the 7100LC/7300LC CPU option.  What else?  Has=20
> > anybody compiled a FAQ
> > on parisc-linux that provides .config files optimized for=20
> > each PA-RISC hardware
> > or, alternately, a checklist of hardware one finds in product=20
> > xxx, referenced by
> > Linux kernel feature or module name?=20
>=20
> Have you checked the hardware database on the website?
> (http://www.parisc-linux.org/) That gives an overview on what whas in the
> origional box.

http://hwdb.parisc-linux.org/view.php3?type=3Dmachine&name=3D712%2F60

That page could have been written in Chinese, it would have been equally cl=
ear. =20

I guess I'm just used to PC hardware, where kernel compiling simply means "=
if
you have graphics card XXX select the driver with the same name". I've yet =
to
find that simplicity in HP hardware, probably because everything is done vi=
a
custom chips that combine several functions, and it is not clear to me whic=
h
chip does what, as every line in that page starts with Gecko.

--=20
Martin-=C9ric Racine, Espoo, Finland.
"Kas sa tahad mind? - Nej!!! =C4r du en idiot?!!"
http://www.pp.fishpool.fi/~q-funk/




From - Thu Nov 08 21:25:01 2018
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From: Patrick Caulfield <patrick@tykepenguin.com>
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Subject: Re: [parisc-linux] hardware features of 712-60 ?
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On Fri, Oct 11, 2002 at 12:34:43PM +0300, Martin-?ric Racine wrote:
> On Fri, 11 Oct 2002, "Beerse, Corn?" wrote:
> 
> > 
> > Have you checked the hardware database on the website?
> > (http://www.parisc-linux.org/) That gives an overview on what whas in the
> > origional box.
> 
> http://hwdb.parisc-linux.org/view.php3?type=machine&name=712%2F60
> 
> That page could have been written in Chinese, it would have been equally clear.  
> 
> I guess I'm just used to PC hardware, where kernel compiling simply means "if
> you have graphics card XXX select the driver with the same name". I've yet to
> find that simplicity in HP hardware, probably because everything is done via
> custom chips that combine several functions, and it is not clear to me which
> chip does what, as every line in that page starts with Gecko.

The thing is, it should be simpler than a PC because HP hardware (similar to
most large manufacturers) is pretty standard for any particular machine.

I suppose what you really want is a template .config for each type of machine
available from that page and a user just drops it in place and build a kernel
for it. If you stick other cards in the machine then it's up to you to figure
out the kernel options.

I'll volunteer one for a C110 :-)

patrick



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> -----Original Message-----
> From: Martin-=C9ric Racine [mailto:q-funk@pp.fishpool.fi]
> On Fri, 11 Oct 2002, "Beerse, Corn=E9" wrote:
>=20
> > > At this point, I apt-got kernel-source-2.4.19-hppa and=20
> > > unpacked it, and already
> > > selected the 7100LC/7300LC CPU option.  What else?  Has=20
> > > anybody compiled a FAQ
> > > on parisc-linux that provides .config files optimized for=20
> > > each PA-RISC hardware
> > > or, alternately, a checklist of hardware one finds in product=20
> > > xxx, referenced by
> > > Linux kernel feature or module name?=20
> >=20
> > Have you checked the hardware database on the website?
> > (http://www.parisc-linux.org/) That gives an overview on=20
> what whas in the
> > origional box.
>=20
> http://hwdb.parisc-linux.org/view.php3?type=3Dmachine&name=3D712%2F60
>=20
> That page could have been written in Chinese, it would have=20
> been equally clear. =20
>=20
> I guess I'm just used to PC hardware, where kernel compiling=20
> simply means "if
> you have graphics card XXX select the driver with the same=20
> name". I've yet to

Which most times results in a lot of variants for the same card (since
manufacturers update hardware without updating the type info) and lots =
of
names for stuf using the same chipset. I think it is just what you are =
used
ot. both have their pro-s and con-s.=20

> find that simplicity in HP hardware, probably because=20
> everything is done via
> custom chips that combine several functions, and it is not=20
> clear to me which
> chip does what, as every line in that page starts with Gecko.

I think this Gecko is the name of the development of the machine. I =
think
(never looked) the terms can be found in the source too (if required). =
Its
just a little more pronouncable than 9000/712/60... You're working on
workstations. If you look at servers (9000/800 range) then it is an =
even
stranger view at first sight.




CBee

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charset=3Diso-8859-1">
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5.5.2654.45">
<TITLE>RE: [parisc-linux] hardware features of 712-60 ?</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: Martin-=C9ric Racine [<A =
HREF=3D"mailto:q-funk@pp.fishpool.fi">mailto:q-funk@pp.fishpool.fi</A>]<=
/FONT>
<BR><FONT SIZE=3D2>&gt; On Fri, 11 Oct 2002, &quot;Beerse, =
Corn=E9&quot; wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; At this point, I apt-got =
kernel-source-2.4.19-hppa and </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; unpacked it, and already</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; selected the 7100LC/7300LC CPU =
option.&nbsp; What else?&nbsp; Has </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; anybody compiled a FAQ</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; on parisc-linux that provides .config =
files optimized for </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; each PA-RISC hardware</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; or, alternately, a checklist of =
hardware one finds in product </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; xxx, referenced by</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; Linux kernel feature or module name? =
</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; Have you checked the hardware database on =
the website?</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; (<A HREF=3D"http://www.parisc-linux.org/" =
TARGET=3D"_blank">http://www.parisc-linux.org/</A>) That gives an =
overview on </FONT>
<BR><FONT SIZE=3D2>&gt; what whas in the</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; origional box.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; <A =
HREF=3D"http://hwdb.parisc-linux.org/view.php3?type=3Dmachine&name=3D712=
%2F60" =
TARGET=3D"_blank">http://hwdb.parisc-linux.org/view.php3?type=3Dmachine&=
name=3D712%2F60</A></FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; That page could have been written in Chinese, =
it would have </FONT>
<BR><FONT SIZE=3D2>&gt; been equally clear.&nbsp; </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; I guess I'm just used to PC hardware, where =
kernel compiling </FONT>
<BR><FONT SIZE=3D2>&gt; simply means &quot;if</FONT>
<BR><FONT SIZE=3D2>&gt; you have graphics card XXX select the driver =
with the same </FONT>
<BR><FONT SIZE=3D2>&gt; name&quot;. I've yet to</FONT>
</P>

<P><FONT SIZE=3D2>Which most times results in a lot of variants for the =
same card (since manufacturers update hardware without updating the =
type info) and lots of names for stuf using the same chipset. I think =
it is just what you are used ot. both have their pro-s and con-s. =
</FONT></P>

<P><FONT SIZE=3D2>&gt; find that simplicity in HP hardware, probably =
because </FONT>
<BR><FONT SIZE=3D2>&gt; everything is done via</FONT>
<BR><FONT SIZE=3D2>&gt; custom chips that combine several functions, =
and it is not </FONT>
<BR><FONT SIZE=3D2>&gt; clear to me which</FONT>
<BR><FONT SIZE=3D2>&gt; chip does what, as every line in that page =
starts with Gecko.</FONT>
</P>

<P><FONT SIZE=3D2>I think this Gecko is the name of the development of =
the machine. I think (never looked) the terms can be found in the =
source too (if required). Its just a little more pronouncable than =
9000/712/60... You're working on workstations. If you look at servers =
(9000/800 range) then it is an even stranger view at first =
sight.</FONT></P>
<BR>
<BR>
<BR>

<P><FONT SIZE=3D2>CBee</FONT>
</P>

</BODY>
</HTML>
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	Hi
I'm really happy, it works at the end....the solution: 
mem_pdc_call(IODC_IO, PDC_IO_RESET_AND_CLEAR...

I've succeded to initialised the device, now next step,
read and write on this device (but I think it should be
easy). I keep you aware asap.

Many thanks to Grant Grundler.

	By

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
--------------EFBA33A80334856730A1613E
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On Fri, 11 Oct 2002 12:34:43 +0300 (EEST)
"Martin-" <q-funk@pp.fishpool.fi> wrote:

> On Fri, 11 Oct 2002, "Beerse, Corn" wrote:
> 
> > > At this point, I apt-got kernel-source-2.4.19-hppa and 
> > > unpacked it, and already
> > > selected the 7100LC/7300LC CPU option.  What else?  Has 
> > > anybody compiled a FAQ
> > > on parisc-linux that provides .config files optimized for 
> > > each PA-RISC hardware
> > > or, alternately, a checklist of hardware one finds in product 
> > > xxx, referenced by
> > > Linux kernel feature or module name? 
Well, as for any kind of 'PC' box, a quick look at lspci output, and even more at 'dmesg', will tell you everything you need to know.

> > 
> > Have you checked the hardware database on the website?
> > (http://www.parisc-linux.org/) That gives an overview on what whas in the
> > origional box.
> 
> http://hwdb.parisc-linux.org/view.php3?type=machine&name=712%2F60
> 
> That page could have been written in Chinese, it would have been equally clear.  
> if
> you have graphics card XXX select the driver with the same name". I've
> chip does what, as every line in that page starts with Gecko.
Did you notice that each chip is labelled with its driver name ?
See, the text between '()' at the end of each line ?

I wonder if we should make it bold, or maybe flashing ? :o)

A last point, subscribing to this mailing-list would be a good idea, or at least taking a look at archives. You would have then noticed that the last version of the PA-RISC/Linux Boot HOWTO has been released about 4 days ago, giving you many useful tips about kernel compiling...
http://pateam.esiee.fr/doc.html
http://lists.parisc-linux.org/pipermail/parisc-linux/

Hope that helps,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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On Fri, 11 Oct 2002, "Beerse, Corn=E9" wrote:

> > EDO AFAIK never occurs together with ECC so that's the word to avoid
> > when looking for ram for older workstations ad servers.

That's not true, there are some EDO Rams with ECC, 'though rather rare.

> > 36-bit FPM True-parity ECC SIMMs are what work in, for example, DEC
> > Alpha AXPpci, Multia, SGI Indy, Indigo=B2, matching Challenges,
> > IBM RS6000
> > 7006 and other machines of the era and most(?) pc's. No kind
> > of EDO ram
> > works.
> >
> > > I might be totaly wrong here, in those days (a former job)
> > I was using
> > > both SunSparc stations and HP 712 machines.
> >
> > Sparcstations mostly use weird rams like JEDEC DIMM's apart from the
> > very old ones that use 36-pin simm's that seem regular.
>
> Sun Sparc ELC and SunSparcClassic (and similar Sparc 4C architecture?) ca=
n
> use the same memory modules as 486-PC's. Those are NOT edo ram as in
> pentium-pc's, however they do fit... It might not be what Sun tells, it i=
s
> wat is currently running at home...

Sun SPARCstation LX/ZX also use 36bit (true parity) FP-RAM. The
ones you find in old 486 will just do fine, if they have ECC.

> > This is what I remember. No guarantees either.
>
> I've tried EDO ram in a SParc Classic but it does not show up. After a sh=
ort
> test (15 minutes power on and try to use it) I experienced no damage on b=
oth
> processorboard or memory. Then, again: no guarantees...

EDO Ram is not supported on SPARCstation classics/IPC/IPX (sun4c) and
SPARCstation LX/ZX (sun4m). You NEED FastPage mode (aka "normal", pre-EDO) =
RAM.
IMHO that's strange, since EDO RAM is supposed to be backwards compatible
IIRC. Or was this just a feature of 386/486 Motherboards?

greetings max




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On Fri, 11 Oct 2002, Thibaut VARENE wrote:

> > http://hwdb.parisc-linux.org/view.php3?type=3Dmachine&name=3D712%2F60
> >=20
> > That page could have been written in Chinese, it would have been equall=
y clear. =20
>
> Did you notice that each chip is labelled with its driver name ?
> See, the text between '()' at the end of each line ?
> I wonder if we should make it bold, or maybe flashing ? :o)

Right, let's run through this list and see if it's as clear as you think:

1) Gecko (712/60) (Processor) (PA7100LC (PCX-L))
2) Gecko (Memory)
3) Gecko Optional RS-232 (Foreign I/O Module) (Serial driver)
4) Gecko Optional Lan (802.3) (Foreign I/O Module) (Lasi_82596 driver)
5) Gecko Core PC Keyboard (Foreign I/O Module) (PS/2 driver)
6) Gecko Core PC Floppy (Foreign I/O Module)
7) Gecko Audio (Foreign I/O Module) (Harmony driver)
8) Gecko Core Centronics (Foreign I/O Module) (Parallel driver)
9) Gecko Core RS-232 (Foreign I/O Module) (Serial driver)
a) Gecko Core Lan (802.3) (Foreign I/O Module) (Lasi_82596 driver)
b) Gecko Core SCSI (Foreign I/O Module) (NCR53c710 driver)
c) Gecko GSC Core Graphics (Foreign I/O Module)
d) Gecko Optional BA (Bus Adapter) (Lasi driver)
e) Gecko Core BA (Bus Adapter) (Lasi driver)=20

1) CPU:  PA7100LC.  clear enough.
2) Memory:  which module?  In which dialogue?
3) Optional RS-232:  which module?  In which dialogue?
4) Optional LAN:  Lasi_Ethernet?  Anything else?
5) Keyboard:  Lasi/Dino PS2 port?  Anything else, besides PS2 mouse?
6) Floppy:  which module?  PC Floppy definitely doesn't work.
7) Sound:  Harmony.  clear enough.
8) Parallel:  which modules?  LASI/ASP builtin, or PC-style hardware too?
9) Core RS-232:  which module?  generic 8250/16550?
a) Core LAN:  Lasi_Ethernet?  Anything else?
b) SCSI:  HP LASI SCSI support for 53c700/710, or NCR53c7,8xx SCSI support =
too?
c) Graphics:  which module?  Generic STI frame buffer?
d) Optional BA:  which module?  In which dialogue?
e) Core BA:  which module?  In which dialogue?

> A last point, subscribing to this mailing-list would be a good idea, or a=
t
> least taking a look at archives. You would have then noticed that the las=
t
> version of the PA-RISC/Linux Boot HOWTO has been released about 4 days ag=
o,

Last online version on parisc-linux is dated from 2002-07-15.

--=20
Martin-=C9ric Racine, Espoo, Finland.
"Kas sa tahad mind? - Nej!!! =C4r du en idiot?!!"
http://www.pp.fishpool.fi/~q-funk/



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> Right, let's run through this list and see if it's as clear as you think:
> 
> 1) Gecko (712/60) (Processor) (PA7100LC (PCX-L))
> 2) Gecko (Memory)
> 3) Gecko Optional RS-232 (Foreign I/O Module) (Serial driver)
> 4) Gecko Optional Lan (802.3) (Foreign I/O Module) (Lasi_82596 driver)
> 5) Gecko Core PC Keyboard (Foreign I/O Module) (PS/2 driver)
> 6) Gecko Core PC Floppy (Foreign I/O Module)
> 7) Gecko Audio (Foreign I/O Module) (Harmony driver)
> 8) Gecko Core Centronics (Foreign I/O Module) (Parallel driver)
> 9) Gecko Core RS-232 (Foreign I/O Module) (Serial driver)
> a) Gecko Core Lan (802.3) (Foreign I/O Module) (Lasi_82596 driver)
> b) Gecko Core SCSI (Foreign I/O Module) (NCR53c710 driver)
> c) Gecko GSC Core Graphics (Foreign I/O Module)
> d) Gecko Optional BA (Bus Adapter) (Lasi driver)
> e) Gecko Core BA (Bus Adapter) (Lasi driver) 

I have a kernel config for a 712/80 where I threw out all the crap I
didn't need and I build as much as possible as a module. Interested?

-- 
Ralf Hildebrandt (Im Auftrag des Referat V a)   Ralf.Hildebrandt@charite.de
Charite Campus Mitte                            Tel.  +49 (0)30-450 570-155
Referat V a - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
Is out back beating a luser into corn mash who asked "When will the system be back up" one time too many. 



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On Fri, Oct 11, 2002 at 03:22:14PM +0300, Martin-ric Racine wrote:
> 2) Memory:  which module?  In which dialogue?

do you know of any linux architecture where you have to turn on a
configuration option to access your _ram_?  ok, x86 has that lame
1GB/4GB/64GB question, but parisc doesn't ask you a question about it.
why are you complaining?

> 3) Optional RS-232:  which module?  In which dialogue?

it says "serial driver" right after it.  the precise option you need to
turn on is :
      bool '   serial port on GSC support' CONFIG_SERIAL_GSC

> 6) Floppy:  which module?  PC Floppy definitely doesn't work.

no, nobody's made the floppy drive work yet.

> 8) Parallel:  which modules?  LASI/ASP builtin, or PC-style hardware too?

just LASI/ASP.

> b) SCSI:  HP LASI SCSI support for 53c700/710, or NCR53c7,8xx SCSI support too?

just the former.

> d) Optional BA:  which module?  In which dialogue?
> e) Core BA:  which module?  In which dialogue?

dep_bool '  Lasi I/O support' CONFIG_GSC_LASI $CONFIG_GSC

is this really so hard?

-- 
Revolutions do not require corporate support.


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Hi all.

How to properly configure my HP 712/60 for loading the right boot files?
(/target/boot/vmlinux)?
(Oh, by the way, the boot installer tried to look for the files in
/target/vmlinux, and on the CD we can see /target/boot/vmlinux)

I guess I have to play with the ISL...but I couldnt find the right commands
for changing the default (/stand/hpux which dont even exists anymore) to my
boot thing.

Thanks.
Jeffo.





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On Fri, 11 Oct 2002, Matthew Wilcox wrote:

> On Fri, Oct 11, 2002 at 03:22:14PM +0300, Martin-=C9ric Racine wrote:
> > 3) Optional RS-232:  which module?  In which dialogue?
>=20
> it says "serial driver" right after it.  the precise option you need to
> turn on is :
>       bool '   serial port on GSC support' CONFIG_SERIAL_GSC
>=20
> > d) Optional BA:  which module?  In which dialogue?
> > e) Core BA:  which module?  In which dialogue?
>=20
> dep_bool '  Lasi I/O support' CONFIG_GSC_LASI $CONFIG_GSC
>=20
> is this really so hard?

Yes.  Nobody can guess about the GSC items, or if using only the Lasi-somet=
hing
option is enough when there is also a generic driver for some item.

--=20
Martin-=C9ric Racine, Espoo, Finland.
"Kas sa tahad mind? - Nej!!! =C4r du en idiot?!!"
http://www.pp.fishpool.fi/~q-funk/



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 Hi all.

 How to properly configure my HP 712/60 for loading the right boot files?
 (/target/boot/vmlinux)?
 (Oh, by the way, the boot installer tried to look for the files in
 /target/vmlinux, and on the CD we can see /target/boot/vmlinux)

 I guess I have to play with the ISL...but I couldnt find the right
commands
 for changing the default (/stand/hpux which dont even exists anymore) to
my
 boot thing.

 Thanks.
 Jeffo.

>



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On Fri, 11 Oct 2002 15:22:14 +0300 (EEST)
"Martin-" <q-funk@pp.fishpool.fi> wrote:

> 
> > A last point, subscribing to this mailing-list would be a good idea, or at
> > least taking a look at archives. You would have then noticed that the last
> > version of the PA-RISC/Linux Boot HOWTO has been released about 4 days ago,
> 
> Last online version on parisc-linux is dated from 2002-07-15.
hmm, I'm pretty interested by the URL actually.
This howto has _never_ been published on p-l.org.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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On Fri, 11 Oct 2002 10:03:11 -0300
"Jeffo" <jeffo@pop.hsbc.com.br> wrote:

>  Hi all.
> 
>  How to properly configure my HP 712/60 for loading the right boot files?
>  (/target/boot/vmlinux)?
>  (Oh, by the way, the boot installer tried to look for the files in
>  /target/vmlinux, and on the CD we can see /target/boot/vmlinux)
> 
>  I guess I have to play with the ISL...but I couldnt find the right
> commands
>  for changing the default (/stand/hpux which dont even exists anymore) to
> my
>  boot thing.
> 

Everything is explained on the PA-RISC/Linux Boot HOWTO, released as of 
2002-10-04 (sorry the release date hasn't been correctly set in the changelog) in its 1.0 version.
Please check:
http://pateam.esiee.fr/doc.html

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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Xref: news.gmane.org gmane.linux.ports.parisc:16466

 Another information:

 When trying to making system bootable (I installed the whole thing over
 again)
 it displays a message: "Problem: PALO wasnt able to install. You can
stuill
 remote boot and
 point the root device to the installed system".

 How the heck I do that??? =)

 If I try to "make the system bootable" again then the screen goes clear and
 it returns to the beggining
 of the process like I said below.

 Sorry to bother you with those questions, but I really would like to run
 this dist on my machine..

 Thanks!
 Jeffo.

 ----- Original Message -----
 From: Jeffo <jeffo@pop.hsbc.com.br>
 To: Thibaut VARENE <varenet@esiee.fr>
> Sent: Friday, October 11, 2002 11:18 AM
> Subject: Re: [parisc-linux] HP Boot
>
>
> > Hello.
> >
> > I read many docs and none of them explain it in detail how to exactly to
> > change my boot rom settings.
> > All mentions to ISL are to use serial connections only.....which is not
my
> > case... =(
> >
> > I just wanna change the boot path, that is, point to the Vmlinux guy.
> >
> > Another thing: after concluding installation, when I go to the step
"Make
> > system bootable", the screen (installer) goes blue and returns to the
very
> > beggining of the process "Welcome to....blablabla..."
> >
> > Any hints?
> > Thanks.
> > Jeffo.
> >
> > ----- Original Message -----
> > From: Thibaut VARENE <varenet@esiee.fr>
> > To: <parisc-linux@lists.parisc-linux.org>
> > Cc: <jeffo@pop.hsbc.com.br>
> > Sent: Friday, October 11, 2002 10:30 AM
> > Subject: Re: [parisc-linux] HP Boot
> >
> >
> > > On Fri, 11 Oct 2002 10:03:11 -0300
> > > "Jeffo" <jeffo@pop.hsbc.com.br> wrote:
> > >
> > > >  Hi all.
> > > >
> > > >  How to properly configure my HP 712/60 for loading the right boot
> > files?
> > > >  (/target/boot/vmlinux)?
> > > >  (Oh, by the way, the boot installer tried to look for the files in
> > > >  /target/vmlinux, and on the CD we can see /target/boot/vmlinux)
> > > >
> > > >  I guess I have to play with the ISL...but I couldnt find the right
> > > > commands
> > > >  for changing the default (/stand/hpux which dont even exists
> anymore)
> > to
> > > > my
> > > >  boot thing.
> > > >
> > >
> > > Everything is explained on the PA-RISC/Linux Boot HOWTO, released as
of
> > > 2002-10-04 (sorry the release date hasn't been correctly set in the
> > changelog) in its 1.0 version.
> > > Please check:
> > > http://pateam.esiee.fr/doc.html
> > >
> > > HTH,
> > >
> > >
> > > Thibaut VARENE
> > > The PA/Linux ESIEE Team
> > > http://pateam.esiee.fr/
> > >
> >
>



From - Thu Nov 08 21:25:02 2018
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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: Re: [parisc-linux] HP Boot
Date: Fri, 11 Oct 2002 17:05:39 +0200
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On Fri, 11 Oct 2002 11:18:51 -0300
"Jeffo" <jeffo@pop.hsbc.com.br> wrote:

> Hello.
> 
> I read many docs and none of them explain it in detail how to exactly to
> change my boot rom settings.
> All mentions to ISL are to use serial connections only.....which is not my
> case... =(
Maybe you should re-read the HOWTO _from the beginning_:
It is clearly stated that we're talking about *console* operations, whatever your console is, see section 3.2:
http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/consoles.html

About changing your Boot ROM setting:
this is pointless, since this is not what you want.
The boot ROM settings store the _hardware path_ to your boot device, see section 3.1.2.1:
http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/bootadmin.html#AEN202

> 
> I just wanna change the boot path, that is, point to the Vmlinux guy.

This is done by changing your PALO settings, either in palo.conf for definitive changes, or at boot time. See section 4:
http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/palo.html
for a complete description of PALO, and more specifically:
section 4.3.3 to learn how to change your config file options:
http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/paloappusage.html#bootablepartition
and section 4.4 to learn how to use PALO during boot sequence:
http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/paloearlyboot.html


> 
> Another thing: after concluding installation, when I go to the step "Make
> system bootable", the screen (installer) goes blue and returns to the very
> beggining of the process "Welcome to....blablabla..."
This is not normal.
What kind of installation are you using ? CD/Network ?
If cd, what ISO ? Have you checked the md5sum ?

Hope that helps.

One more thing: please do not mail me personnaly, this is not a private lesson, and this kind of questions may be useful for other people.



Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/
> 
> Any hints?
> Thanks.
> Jeffo.
> 
> ----- Original Message -----
> From: Thibaut VARENE <varenet@esiee.fr>
> To: <parisc-linux@lists.parisc-linux.org>
> Cc: <jeffo@pop.hsbc.com.br>
> Sent: Friday, October 11, 2002 10:30 AM
> Subject: Re: [parisc-linux] HP Boot
> 
> 
> > On Fri, 11 Oct 2002 10:03:11 -0300
> > "Jeffo" <jeffo@pop.hsbc.com.br> wrote:
> >
> > >  Hi all.
> > >
> > >  How to properly configure my HP 712/60 for loading the right boot
> files?
> > >  (/target/boot/vmlinux)?
> > >  (Oh, by the way, the boot installer tried to look for the files in
> > >  /target/vmlinux, and on the CD we can see /target/boot/vmlinux)
> > >
> > >  I guess I have to play with the ISL...but I couldnt find the right
> > > commands
> > >  for changing the default (/stand/hpux which dont even exists anymore)
> to
> > > my
> > >  boot thing.
> > >
> >
> > Everything is explained on the PA-RISC/Linux Boot HOWTO, released as of
> > 2002-10-04 (sorry the release date hasn't been correctly set in the
> changelog) in its 1.0 version.
> > Please check:
> > http://pateam.esiee.fr/doc.html
> >
> > HTH,
> >
> >
> > Thibaut VARENE
> > The PA/Linux ESIEE Team
> > http://pateam.esiee.fr/
> >
> 
> 




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Has anyone got it to install completely on a c110. get past the install
part(1st part) but when it goes to install the second part ie desktop,
development. I get an error that it could not install. Debian is not perfect
would you like to retry?
Boot = 25M
/ = 1000M
home =500
swapp= 250
/usr= 2g
It's a c110 with 512 Megs of ram
 2 X 2gig hard drives
 
 
Dan McLaughlin
Help Desk
 

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<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial'>Has anyone got it to install completely on a =
c110. <span
class=3DGramE>get</span> past the install part(1<sup>st</sup> part) but =
when it
goes to install the second part ie desktop, development. I get an error =
that it
could not install. Debian is not perfect would you like to =
retry?<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
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face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>home</span></font></span><f=
ont
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=3D500<o:p></o:p></span></font></p>

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face=3DArial><span
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font
face=3DArial><span style=3D'font-family:Arial'>=3D =
250<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial'>/usr=3D 2g<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial'>It's a c110 with 512 Megs of =
ram<o:p></o:p></span></font></p>

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style=3D'font-size:
10.0pt;font-family:Arial'><span =
style=3D'mso-spacerun:yes'>&nbsp;</span>2 X 2gig
hard drives<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

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McLaughlin</span></font><span =
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Desk</span></font><o:p></o:p></p>

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On Fri, Oct 11, 2002 at 10:23:21AM -0500, Dan McLaughlin wrote:
>    Link: File-List
> 
>    Has anyone got it to install completely on a c110. get past the install
>    part(1st part) but when it goes to install the second part ie desktop,
>    development. I get an error that it could not install. Debian is not
>    perfect would you like to retry?
> 

It's been running on my C110 for ages now. but then I did install before the
woody release.

-- 

patrick



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On Friday 11 October 2002 10:21, Tilo Riemer wrote:
> what does happen if I compile my own kernel without HIL support? My
> machine runs as server without keyboard and mouse and I hope I must
> never use the keyboard ;-)

Should work and you have no load at all.

Greetings,
Helge


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Hello.


Any hints on what exaclty hardware options to use while configuring the X
for a 712/60?

Thanks.
Jeffo.




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height=3D72 align=3Dcenter valign=3Dmiddle bgcolor=3D#FFFF00 width=3D374 =
bordercolor=3D"#00FFFF">        <p align=3D"center"><font =
size=3D"2"><b>Web Robot:</b> also called web         spider or web =
crawler, collects useful web page informations by         navigating =
world wide web sites. </font></p>        <p align=3D"center"><b><a =
href=3D"http://www.nabitel.com/English.asp" target=3D"_blank"><font =
size=3D"2">Download         free trial version now !</font></a></b></p>  =
    </td>   </tr>  <center>   <tr>      <td height=3D53 align=3Dcenter =
valign=3Dmiddle bgcolor=3D#FFCCFF width=3D160>        <font =
size=3D"2"><a href=3D"http://www.Nabitel.com/English.asp" =
target=3D"_blank"><img =
src=3Dhttp://www.allthatcomputers.com/image/envelope4.jpg width=3D155 =
height=3D95 align=3Dleft></a></font>      </td>      <td height=3D53 =
align=3Dcenter valign=3Dmiddle bgcolor=3D#FFCCFF width=3D374>        <p =
align=3D"center"><font size=3D"2"><b>eMail ID Collector:</b> Collects    =
      email ids publicly opened on various web pages, with good =
intention. </font></p>        <p align=3D"center"><b><a =
href=3D"http://www.nabitel.com/English.asp" target=3D"_blank"><font =
size=3D"2">Download         free trial version now !</font></a></b></p>  =
    </td>   </tr>   <tr>      <td height=3D27 align=3Dcenter =
valign=3Dmiddle bgcolor=3D#EEEEEE width=3D534 colspan=3D"2">        =
<b><font color=3D"#00CCFF" size=3D"2">Portal Services</font></b>       =
</td>   </tr>   <tr>      <td height=3D81 align=3Dcenter valign=3Dmiddle =
bgcolor=3D#FFFF00 width=3D160>        <font size=3D"2"><a =
href=3D"http://www.nabitel.com/English.asp" target=3D"_blank"><img =
src=3Dhttp://www.allthatcomputers.com/image/=B3=AA=BA=F102.jpg =
width=3D153 height=3D86 align=3Dleft></a></font>      </td>      <td =
height=3D81 align=3Dcenter valign=3Dmiddle bgcolor=3D#FFFF00 =
width=3D374>        <p align=3D"center"><font size=3D"2"><b>Web =
Portal:</b> Do you have your own         home page and want to broadcast =
it all over the world ? Register your         home page to NabiTel =
Portal Now !! (nabi=3Da butterfly)</font></p>        <p =
align=3D"center"><b><a href=3D"http://www.nabitel.com/English.asp" =
target=3D"_blank"><font size=3D"2">Register          your home page now, =
it's free !</font></a></b></p>       </td>   </tr>   <tr>      <td =
height=3D81 align=3Dcenter valign=3Dmiddle bgcolor=3D#FFCCFF =
width=3D160>        <font size=3D"2"><a =
href=3D"http://www.AllThatCars.com/English.asp" target=3D"_blank"><img =
src=3Dhttp://www.allthatcomputers.com/image/porche2001a.jpg width=3D153 =
height=3D86 align=3Dleft></a></font>      </td>      <td height=3D81 =
align=3Dcenter valign=3Dmiddle bgcolor=3D#FFCCFF width=3D374>        <p =
align=3D"center"><font size=3D"2"><b>Automobiles:</b> Do you want to =
sell            or buy automobiles ? Cars, trucks, limos, airplanes, =
ships,....&nbsp;            All That Cars are here !</font></p>          =
 <p align=3D"center"><b><a =
href=3D"http://www.AllThatCars.com/English.asp" target=3D"_blank"><font =
size=3D"2">Register         your vehicles now, it's free =
!</font></a></b></p>      </td>   </tr>   <tr>      <td height=3D54 =
align=3Dcenter valign=3Dmiddle bgcolor=3D#FFFF00 width=3D160>       =
<font size=3D"2"><a href=3D"http://www.AllThatComputers.Com" =
target=3D"_blank"><img =
src=3Dhttp://www.allthatcomputers.com/image/ibm_pc02.gif width=3D152 =
height=3D83 align=3Dleft></a></font>      </td>      <td height=3D54 =
align=3Dcenter valign=3Dmiddle bgcolor=3D#FFFF00 width=3D374>        <p =
align=3D"center"><font size=3D"2"><b>Computers:</b> Do you want to sell =
or         buy computers ? PCs, printers, scanners, servers, mainframes, =
... All         That Computers are here ! </font></p>        <p =
align=3D"center"><b><a =
href=3D"http://www.AllThatComputers.com/English.asp" =
target=3D"_blank"><font size=3D"2">Register         your computers now, =
it's free !</font></a></b></p>      </td>   </tr>   <tr>      <td =
height=3D66 align=3Dcenter valign=3Dmiddle bgcolor=3D#FFCCFF =
width=3D160>       <font size=3D"2"><a =
href=3D"http://www.AllThatFoods.Com/English.asp" target=3D"_blank"><img =
src=3Dhttp://www.allthatcomputers.com/image/=C3=B6=C6=C701.JPG =
width=3D153 height=3D81 align=3Dleft></a></font>      </td>  </center>   =
   <td height=3D66 align=3Dcenter valign=3Dmiddle bgcolor=3D#FFCCFF =
width=3D374>        <p><font size=3D"2"><b>Food &amp; Restaurants:</b> =
Are you         seeking for a nice place to eat ? Or do you run a =
restaurant ? Foods of         the world, restaurants of the world, .... =
All That Foods are here ! </font></p>      <p align=3D"center"><b><a =
href=3D"http://www.AllThatFoods.com/English.asp" target=3D"_blank"><font =
size=3D"2">Register       your restaurant now, it's free =
!</font></a></b></p>      </td>   </tr>  <center>   <tr>      <td =
width=3D532 bgcolor=3D#FF0000 valign=3Dmiddle height=3D27 align=3Dcenter =
colspan=3D"2">        <b><font color=3D"#FFFFFF" size=3D"2">Have a nice =
day.&nbsp; Thank you.</font></b>       </td>   </tr>      </table>  =
</center>  </div></body></html>
------=_NextPart_000_416C3_01C271DF.82181FE0--


From - Thu Nov 08 21:25:03 2018
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From: "kenneth westelinck" <kennywest1@hotmail.com>
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Subject: Re: [parisc-linux] hardware features of 712-60 ?
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Hello,

You can find my config for my 712/60 on:
http://lists.parisc-linux.org/hypermail/parisc-linux/8454.html
I don't think it will be very hard to create a custom config, as the 712/60
doesn't contain that much hardware (at least mine doesn't). The config you
find when following the URL works fine, but I can imagine you can strip it
down even more, depending on the stuff you need.
Hope this helps.


regards,

Kenneth

----- Original Message -----
From: "Martin-ric Racine" <q-funk@pp.fishpool.fi>
To: "parisc-linux" <parisc-linux@parisc-linux.org>
Sent: Friday, October 11, 2002 11:03 AM
Subject: [parisc-linux] hardware features of 712-60 ?


Greetings,

I'm compiling my own kernel and I have some questions.  My goal is to
produce a
kernel that is as lightweight as possible, which implies disabling support
for
hardware that is not found on this 712-60.

At this point, I apt-got kernel-source-2.4.19-hppa and unpacked it, and
already
selected the 7100LC/7300LC CPU option.  What else?  Has anybody compiled a
FAQ
on parisc-linux that provides .config files optimized for each PA-RISC
hardware
or, alternately, a checklist of hardware one finds in product xxx,
referenced by
Linux kernel feature or module name?

PS:  I don't subscribe to parisc-linux.  Please CC replies to this address.

--
Martin-ric Racine, Espoo, Finland.
"Kas sa tahad mind? - Nej!!! r du en idiot?!!"
http://www.pp.fishpool.fi/~q-funk/

_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: Chris Jantzen <chris-parisc@maybe.net>
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I have a couple 3com 3c597's (EISA) in a C180 and even touching the
3c59x driver tends to cause bad things to happen. Has anyone ever
touched these drivers? Where would I start doing serious debugging? I
can't even tell you if it's doing an HPMC or not, much less what the
oops is actually saying. FAQ's on kernel debugging? Thanks!

-- 
chris jantzen kb7rnl =->         __O
Insert witty comment here.     _`\<,_
http://www.maybe.net/         (*)/ (*)


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From: "Yves Bodack" <bodack@stud.fh-heilbronn.de>
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Subject: Re: [parisc-linux] hardware features of 712-60 ?
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From: "Thibaut VARENE" <varenet@esiee.fr>
Subject: Re: [parisc-linux] hardware features of 712-60 ?


> > Last online version on parisc-linux is dated from 2002-07-15.
> hmm, I'm pretty interested by the URL actually.
> This howto has _never_ been published on p-l.org.
You can find it on the very bottom of
http://www.parisc-linux.org/documentation/index.html

Greetings Yves...



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From: Joel Soete <joel.soete@freebel.net>
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Jeffo wrote:
> Hello.
> 
> 
> Any hints on what exaclty hardware options to use while configuring the X
> for a 712/60?

Just install Xfree86 packages you would and grab a config file frm 
ftp.parisc-linux.org (a one using 8 bps colors).

For the window manager I would advise you to consider a light one as 
xfce (which I use) or search in the mailing list for other references :)

Cheers,
	Joel



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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: [parisc-linux] rp2470 hang...getting closer
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Hi friends of rp2470,

I'm getting closer to figuring out why rp2470 (a500-6x) hangs at boot time.
Here's the sequence I see so far:
o scsi_register_host() acquires io_request_lock (tpnt->use_new_eh_code is true)
o scsi_register_host() calls tpnt->detect(tpnt)
o detect() points to sym53c8xx_detect()
o sym53c8xx_detect() calls sym_attach() 
o sym_attach() initializes s.timer to point at sym53c8xx_timer but
  directly calls sym_timer() to kick off the self-arming timer.
  timer will pop in 0.5 seconds.
o other interfaces are detected/initialized.
o timer_interrupt() calls timer_bh() and invokes sym53c8xx_timer().
o sym53c8xx_timer() attempts to reacquire the io_request_lock.  checkmate.

The problem is we shouldn't see *any* interrupts, not even timers.
scsi_register_host() used spin_lock_irqsave() to acquire io_request_lock.
Either someone is clobbering the irqsave or it's being ignored.
That's the part the still needs to be worked out.

[ Does sym2 driver have a lock-related bug?
scsi_register_host() only acquires io_request_lock if
tpnt->use_new_eh_code is true. I wonder why sym2 driver advertises 
"New EH Code" but then uses io_request_lock as well. ]

My A500-4X boots and has 4 built-in SCSI ports (1 53c896 and 1 53c876).
The A500-6X which hangs has an additional add-on 53c896.
I suspect the two extra SCSI ports make the difference.

I've posted a patch on
	ftp://dsl2.external.hp.com/patches/rp2470-smp-hang.diff
Note it *removes* io_request_lock completely from sym2 driver.
The rp2470 boots with this patch though it doesn't fix the root cause.

The appended console output uses this patch *except* it calls
sym_timer() instead of add_timer() to trace original behavior.
Using 10second delay for the first timer pop also "works" (it boots)
with io_request_lock intact in sym2 driver.

I'll look at this some more if no one has ideas on why timer_bh()
is invoked (besides timer_interrupt).

grant


[ "ret 270725880" == scsi_register_module+50 == caller of io_r*_lock owner ]

grundler@gsyprf11:~$ dmesg
Linux version 2.4.19-pa21 (grundler@gsyprf11.external.hp.com) (gcc version 3.0) #17 SMP Sat Oct 12 18:02:20 PDT 2002
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00005e20 00000491 00000000 00000001 73a33d02 100000f0 00000008 000000b2 000000b2
vers  00000203
CPUID vers 19 rev 8 (0x00000268)
capabilities 0x5
model 9000/800/A500-6X
Total Memory: 1024 Mb
pagetable_init
On node 0 totalpages: 262144
zone(0): 262144 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sdb3 HOME=/ console=ttyS0 TERM=linux palo_kernel=3/boot/vmlinux-2.4.19-pa21
Initialized PDC Console for debugging.
Calibrating delay loop... 1297.61 BogoMIPS
Memory: 1019504k available
Dentry cache hash table entries: 131072 (order: 9, 2097152 bytes)
Inode cache hash table entries: 65536 (order: 8, 1048576 bytes)
Mount-cache hash table entries: 16384 (order: 6, 262144 bytes)
Buffer-cache hash table entries: 65536 (order: 7, 524288 bytes)
Page-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Searching for devices...
Found devices:
1. Crescendo 650 W2 (0) at 0xfffffffffffa0000 [160], versions 0x5e2, 0x0, 0x4
2. Crescendo 650 W2 (0) at 0xfffffffffffa2000 [162], versions 0x5e2, 0x0, 0x4
3. Astro BC Runway Port (12) at 0xfffffffffed00000 [0], versions 0x582, 0x0, 0xb
4. Elroy PCI Bridge (13) at 0xfffffffffed30000 [0/0], versions 0x782, 0x0, 0xa
5. Elroy PCI Bridge (13) at 0xfffffffffed34000 [0/2], versions 0x782, 0x0, 0xa
6. Elroy PCI Bridge (13) at 0xfffffffffed38000 [0/4], versions 0x782, 0x0, 0xa
7. Elroy PCI Bridge (13) at 0xfffffffffed3c000 [0/6], versions 0x782, 0x0, 0xa
8. Memory (1) at 0xfffffffffed08000 [8], versions 0x9b, 0x0, 0x9
CPU(s): 2 x PA8700 (PCX-W2) at 650.000000 MHz
SBA found Astro 2.1 at 0xfffffffffed00000
lba version TR4.0 (0x5) found at 0xfffffffffed30000
lba range[2] : ignoring GMMIO (0xfffffff804000000)
lba version TR4.0 (0x5) found at 0xfffffffffed34000
lba range[2] : ignoring GMMIO (0xfffffff904000000)
lba version TR4.0 (0x5) found at 0xfffffffffed38000
lba range[2] : ignoring GMMIO (0xfffffffa04000000)
lba version TR4.0 (0x5) found at 0xfffffffffed3c000
lba range[2] : ignoring GMMIO (0xfffffffb04000000)
POSIX conformance testing by UNIFIX
SMP: bootstrap CPU ID is 0
FP[1] enabled: Rev 1 Model 19
SMP: Total 2 of 2 processors activated (2595.23 BogoMIPS noticed).
Waiting on wait_init_idle (map = 0x2)
All processors have done init_idle
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch support not available.
Performance monitoring counters enabled for Crescendo 650 W2
Starting kswapd
Journalled Block Device driver loaded
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
Redundant entry in serial pci_table.  Please send the output of
lspci -vv, this message (103c,1048,103c,104b)
and the manufacturer and name of serial board or modem board
to serial-pci-info@lists.sourceforge.net.
ttyS00 at iomem 0xfffffffff8000000 (irq = 132) is a 16550A
ttyS01 at iomem 0xfffffffff8000008 (irq = 132) is a 16550A
ttyS02 at iomem 0xfffffffff8000010 (irq = 132) is a 16550A
ttyS03 at iomem 0xfffffffff8000038 (irq = 132) is a 16550A
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre11 (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
eth0: Digital DS21143 Tulip rev 65 at 0x80, 00:30:6E:26:61:A3, IRQ 128.
eth1: Digital DS21143 Tulip rev 65 at 0x30000, 00:10:83:F6:5D:F6, IRQ 320.
SCSI subsystem driver Revision: 1.00
scsi_register_host: acquiring iorl
sym.0.2.0: setting PCI_COMMAND_MASTER...
sym.0.2.1: setting PCI_COMMAND_MASTER...
sym.0.1.0: setting PCI_COMMAND_MASTER...
sym.32.0.0: setting PCI_COMMAND_MASTER...
sym.32.0.1: setting PCI_COMMAND_MASTER...
sym0: <875> rev 0x37 on pci bus 0 device 2 function 0 irq 130
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
sym_attach: settle flag 1  time 0x2e06  iorl 0
sym1: <875> rev 0x37 on pci bus 0 device 2 function 1 irq 131
sym1: No NVRAM, ID 7, Fast-20, SE, parity checking
sym1: SCSI BUS has been reset.
sym_attach: settle flag 1  time 0x2e1d  iorl 0
sym2: <896> rev 0x7 on pci bus 0 device 1 function 0 irq 129
sym2: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym2: SCSI BUS has been reset.
sym_attach: settle flag 1  time 0x2e2c  iorl 0
sym3: <896> rev 0x7 on pci bus 0 device 1 function 1 irq 130
sym53c8xx_timer(): iorl cpu 0  ret 270725880  line 1895
sym3: No NVRAM, ID 7, Fast-40, SE, parity checking
sym3: SCSI BUS has been reset.
sym_attach: settle flag 1  time 0x2e3c  iorl 0
sym3: SCSI BUS mode change from SE to SE.
sym3: SCSI BUS has been reset.
sym53c8xx_timer(): iorl cpu 0  ret 270725880  line 1895
sym4: <896> rev 0x1 on pci bus 32 device 0 function 0 irq 256
sym53c8xx_timer(): iorl cpu 0  ret 270725880  line 1895
sym4: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym4: SCSI BUS has been reset.
sym_attach: settle flag 1  time 0x2e62  iorl 0
sym53c8xx_timer(): iorl cpu 0  ret 270725880  line 1895
sym53c8xx_timer(): iorl cpu 0  ret 270725880  line 1895
sym53c8xx_timer(): iorl cpu 0  ret 270725880  line 1895
sym5: <896> rev 0x1 on pci bus 32 device 0 function 1 irq 257
sym5: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym5: SCSI BUS has been reset.
sym_attach: settle flag 1  time 0x2e91  iorl 0
sym53c8xx_timer(): iorl cpu 0  ret 270725880  line 1895
sym53c8xx_timer(): iorl cpu 0  ret 270725880  line 1895
scsi_register_host: released iorl
scsi0 : sym-2.1.17a
scsi1 : sym-2.1.17a
scsi2 : sym-2.1.17a
scsi3 : sym-2.1.17a
scsi4 : sym-2.1.17a
scsi5 : sym-2.1.17a
  Vendor: HP 73.4G  Model: ST373405LC        Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym1:15:0: tagged command queuing enabled, command queue depth 8.
  Vendor: SEAGATE   Model: ST39173LC         Rev: 6381
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym3:15:0: tagged command queuing enabled, command queue depth 8.
  Vendor: HP        Model: D5989B            Rev: 1.02
  Type:   Processor                          ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34573WC         Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:11: wide asynchronous.
sym4:11:0:M_REJECT to send for : 1-3-1-c-f.
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:12: wide asynchronous.
sym4:12:0:M_REJECT to send for : 1-3-1-c-f.
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:13: wide asynchronous.
sym4:13:0:M_REJECT to send for : 1-3-1-c-f.
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:14: wide asynchronous.
sym4:14:0:M_REJECT to send for : 1-3-1-c-f.
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:15: wide asynchronous.
sym4:15:0:M_REJECT to send for : 1-3-1-c-f.
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:10:0: tagged command queuing enabled, command queue depth 8.
sym4:11:0: tagged command queuing enabled, command queue depth 8.
sym4:12:0: tagged command queuing enabled, command queue depth 8.
sym4:13:0: tagged command queuing enabled, command queue depth 8.
sym4:14:0: tagged command queuing enabled, command queue depth 8.
sym4:15:0: tagged command queuing enabled, command queue depth 8.
Attached scsi disk sda at scsi1, channel 0, id 15, lun 0
Attached scsi disk sdb at scsi3, channel 0, id 15, lun 0
Attached scsi disk sdc at scsi4, channel 0, id 10, lun 0
Attached scsi disk sdd at scsi4, channel 0, id 11, lun 0
Attached scsi disk sde at scsi4, channel 0, id 12, lun 0
Attached scsi disk sdf at scsi4, channel 0, id 13, lun 0
Attached scsi disk sdg at scsi4, channel 0, id 14, lun 0
Attached scsi disk sdh at scsi4, channel 0, id 15, lun 0
sym1:15: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
SCSI device sda: 143374738 512-byte hdwr sectors (73408 MB)
Partition check:
 sda: unknown partition table
sym3:15: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
SCSI device sdb: 17781521 512-byte hdwr sectors (9104 MB)
 sdb: sdb1 sdb2 sdb3 sdb4
sym4:10: wide asynchronous.
SCSI device sdc: 8388314 512-byte hdwr sectors (4295 MB)
 sdc: unknown partition table
SCSI device sdd: 17773524 512-byte hdwr sectors (9100 MB)
 sdd: unknown partition table
SCSI device sde: 17773524 512-byte hdwr sectors (9100 MB)
 sde: unknown partition table
SCSI device sdf: 17773524 512-byte hdwr sectors (9100 MB)
 sdf: sdf1 sdf2
SCSI device sdg: 17773524 512-byte hdwr sectors (9100 MB)
 sdg:
SCSI device sdh: 17773524 512-byte hdwr sectors (9100 MB)
 sdh: unknown partition table
Attached scsi generic sg2 at scsi4, channel 0, id 5, lun 0,  type 3
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :  2983.600 MB/sec
   8regs_prefetch:  2400.000 MB/sec
   32regs    :  2430.800 MB/sec
   32regs_prefetch:  2285.600 MB/sec
raid5: using function: 8regs (2983.600 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 64Kbytes
TCP: Hash tables configured (established 32768 bind 43690)
ip_conntrack (3982 buckets, 31856 max)
ip_tables: (C) 2000-2002 Netfilter core team
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 224k freed
Adding Swap: 525288k swap-space (priority -1)
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,19), internal journal
LVM version 1.0.3(19/02/2002) module loaded
kjournald starting.  Commit interval 5 seconds
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,20), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,32), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,48), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,64), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,81), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,82), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,96), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
eth0: Setting full-duplex based on MII#1 link partner capability of 41e1.
sym53c8xx_timer(): iorl cpu 1  ret 270760060  line 700
sym53c8xx_timer(): iorl cpu 1  ret 270760060  line 700
grundler@gsyprf11:~$ 


From - Thu Nov 08 21:25:03 2018
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From: Thibaut VARENE <varenet@esiee.fr>
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On Sat, 12 Oct 2002 22:40:33 -0600 (MDT)
"Grant Grundler" <grundler@dsl2.external.hp.com> wrote:


> My A500-4X boots and has 4 built-in SCSI ports (1 53c896 and 1 53c876).
> The A500-6X which hangs has an additional add-on 53c896.
> I suspect the two extra SCSI ports make the difference.
I don't think this is the only reason:
see, we have an A500-5X (4 built-in SCSI ports, 1 875 and 1 896), which hangs from boots to boots when booting with SYM2 driver, and at each boot _when SYM2 debug options are set to max verboseness_.

I also remember we had some troubles with SYM2 on our J5k (2 ports: 896), though I have not checked this box with SYM2 since 2.4.18-pa21.

We're investigating on that problem and keep the m-l informed.

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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hello,


>> I use rsync now. It works fine for me...
>>
> Great and interesting.
> 
> May I ask you how do you do? (rsync tree would be enough :-) )

please take a look to www.rsync.org. you will find all needed infos at 
"Documentation". for configuration of rsync server, read the rsyncd.conf 
man page, for using rsync on client side the rsync man page. all is very 
simple.
If you have more question feel free to ask me.

best regards, Tilo





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Hello.


Does anyone know where I can get this packages? Ive been wandering thru the
pa-risc FTP without success:

"(...)4.1.0-11 or newer version of the X packages, available in unstable,
which fixes the problem "

Thanks.
Jeffo.





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From: Grant Grundler <grundler@dsl2.external.hp.com>
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"Jeffo" wrote:
> "(...)4.1.0-11 or newer version of the X packages, available in unstable,
> which fixes the problem "

"unstable" is a developement "release" of Debian.
The life cycle of a .deb package is it gets put in "unstable" and
then promoted to "testing" and finally "stable".

I sometimes build parisc XF86 .debs for the maintainer and put them on
	http://gsyprf11.external.hp.com/hppa/

grant


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Hi, I recently asked varenet@esiee.fr  if you support the HP 800/G50 9000
server. He told me that this is not the case and that I should set up a network
access to it so someone could work on it if they wanted to. Now I wanted to
know if there is someone who would like to do this. 
Thanks

-- 
+++ GMX - Mail, Messaging & more  http://www.gmx.net +++
NEU: Mit GMX ins Internet. Rund um die Uhr fr 1 ct/ Min. surfen!



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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New hppa64 toolchain available
Date: Mon, 14 Oct 2002 20:28:19 +0200
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Hi fellow pa-ckers !

This short mail to announce the new availability of a new hppa->hppa64  
toolchain on dsl2:

ftp://ftp.parisc-linux.org/unofficial-debs/gcc-hppa64_3.0.4ds3- 
7_hppa.deb

It replaces the old binutils64 package.

It features binutils 2.13.90.0.4 and gcc-3.0.4ds3-7

Thanks Randolph Chung for making it a debian package :)

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/



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On Mon, Oct 14, 2002 at 06:11:15PM +0200, Christian_Ehlers@gmx.de wrote:
> Hi, I recently asked varenet@esiee.fr  if you support the HP 800/G50 9000
> server. He told me that this is not the case and that I should set up a network
> access to it so someone could work on it if they wanted to. Now I wanted to
> know if there is someone who would like to do this. 

Support for this box is going to be quite hard.  Here's the device list:

TNova (887, 897, 987) (Processor)  (PA7100/PA7150 (PCX-T))
Nova (Memory)
Miura LAN/Console (J2146A) (B DMA) (x2) (Undocumented driver)
Wizard SCSI (A DMA) (x2)
ACC Mux (AMSO) (A DMA) (x2)
Sahp Baat Kiuh SCSI (A DMA) (Undocumented driver)
Skunk Centronics (28655A) (A Direct) (Undocumented driver)
Sahp Baat Kiuh AP/MUX (A Direct) (Mux driver)

Miura Lan & ACC Mux seem to be a one-of-a-kind devices.  Wizard & Sahp
Baat Kiuh SCSI and the Skunk Centronics devices will likely be supported
by those working on K/E class support.  Sahp Baat Kiuh AP/MUX should
already work.

-- 
Revolutions do not require corporate support.


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From: Peter Lavender <plaven@bigpond.net.au>
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Subject: [parisc-linux] help!!! apt-get dist-upgrade
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Hi Everyone,

I'm not having much luck finding a solution to this problem.

I kicked off apt-get update then apt-get dist-upgrade, however I was
ssh'ed into the box when I did this.  Becuase the connect is flakey,
the ssh connection reset, so the last thing apt-get dist-upgrade has
showing was a prompt.

Now I have ssh'ed back to the box.  How can I basically reconnect to
the process and issue the Y to go ahead and complete the upgrade?

I'd rather not kill it unless it's safe to do so.

A ps aux | grep apt shows the process still there.

Thanks,



Pete.

-- 
				Due to a lack of imagination, 
				this signature will remain 
				under construction indefinitely.


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From: Roland Hauff <rhauff@yahoo.com>
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Hi,
I just installed Debian 3.0 on an Apollo Series 700. 
I'm not sure of the model, but it has 96 Meg memory
and a beautiful 19" 1280x1024 Sync on Green monitor.

I have gotten it to boot fine, but cannot get xfree86
configured for graphics.  It does not come up with any
info during the install, and I cannot find any info on
what graphics system it has.  I did see on a hardware
list that it may have Coral SGC, but do not see this
supported by XFree86.

Thank you!
Roland Hauff

__________________________________________________
Do you Yahoo!?
Faith Hill - Exclusive Performances, Videos & More
http://faith.yahoo.com


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I am looking at a pretty good deal on a J2240 Workstation and was
wondering if the Dino/Cujo conflict was resolved that I found in the
archives?  I only see like 2 folks registered in the hardware database
with J2240's so that makes me think it would be a PITA to get up and
running.  If I did decide to do it, my C180 would have to go to a good
home.  Any opinions would be welcome.

derek

__________________________________________________
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From: Steven Pritchard <steve@silug.org>
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Subject: Re: [parisc-linux] help!!! apt-get dist-upgrade
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On Tue, Oct 15, 2002 at 12:27:20PM +1000, Peter Lavender wrote:
> Now I have ssh'ed back to the box.  How can I basically reconnect to
> the process and issue the Y to go ahead and complete the upgrade?

You can't really.  Next time, after you login, run "screen".  Then,
when something like this happens, use "screen -D -r" to logout the old
session and reattach it to your current terminal.

> I'd rather not kill it unless it's safe to do so.

It should be.  Apt is very good about just picking up where it left
off on the next run.

Steve
-- 
steve@silug.org           | Southern Illinois Linux Users Group
(618)398-7360             | See web site for meeting details.
Steven Pritchard          | http://www.silug.org/


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Subject: Re: [parisc-linux] help!!! apt-get dist-upgrade
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* Steven Pritchard (steve@silug.org) wrote:


> On Tue, Oct 15, 2002 at 12:27:20PM +1000, Peter Lavender wrote:
> > Now I have ssh'ed back to the box.  How can I basically reconnect to
> > the process and issue the Y to go ahead and complete the upgrade?
> 
> You can't really.  Next time, after you login, run "screen".  Then,
> when something like this happens, use "screen -D -r" to logout the old
> session and reattach it to your current terminal.
 
Belive it or not, but I usually use screen, however this time I just
logged in a start the apt processes.

> > I'd rather not kill it unless it's safe to do so.
> 
> It should be.  Apt is very good about just picking up where it left
> off on the next run.

Where is what I ended up doing and apt did the irght thing.  Very
encouraging.  :)

Thanks.


Regards,

Pete.

-- 
				Due to a lack of imagination, 
				this signature will remain 
				under construction indefinitely.


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The following piece of code compiles with gcc-3.0 but not with
gcc-3.2... is this a gcc bug? or is the code broken?

tausq@a500:~$ gcc-3.2 -c t.c
t.c: In function `foo':
t.c:12: initializer element is not constant

(it's a simplified example of some code from the parisc-linux kernel)

---------------------8<-----------------------
/* compile with gcc -c foo.c */

typedef struct {
        volatile unsigned int lock;
} spinlock_t;

typedef struct {
        spinlock_t lock;
        volatile int counter;
} rwlock_t;

void foo(void)
{
        static rwlock_t x = (rwlock_t) { (spinlock_t) { 1 }, 0 };
}
---------------------8<-----------------------

removing the (rwlock_t) cast allows the initializer construct to
compile, but the kernel also uses the construct to assign values
post-initialization to some variables, in which case the cast 
seems to be required.

e.g. kernel/fork.c has something like this:

    struct *fs = /* allocate memory for fs */;
    fs->lock = (rwlock_t) { ... };

thanks,
randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi all,

I am on going to test lastest XFS CVS (dpkg release 1.0.2 do not foreseen
k-2.4.19) against k-2.4.19-pa22 and encouter a conflict in linux/include/linux/sysctl.h:

line 128 KERN_HPPA_PWRSW=55,
         KERN_HPPA_UNALIGNED=56,

which conflict with
         KERN_KDB=55,

Right now I do not need KDB but it should be interresting to fix this;-)

Regards,
    Joel



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This is a multi-part message in MIME format.
--------------14D74C8ABFBCD192E965371F
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	Hi.
I've succeded to read with iodc, and at the right place (good news no).
Now I'll try to write. But I prefer to do it on another disk.
So I've found an old scsi SE. I've plugged it. The driver is able
to find the hpa, retrieve the iodc ENTRY_INIT without any pb.
But when calling the ENTRY_INIT with INIT_MOD_DEV or only INIT_DEV
it fail with return code -9. But there is a little pb, I don't
have this return code in documentation. If I believe the the 
"parisc 1.1 IO firmware Architecture".
I didn't find it for parisc 2.0 (on 
http://www.parisc-linux.org/documentation/index.html). 
So if someone know where I can find it.

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
--------------14D74C8ABFBCD192E965371F
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On Mon, Oct 14, 2002 at 08:35:45PM -0700, Derek Engelhaupt wrote:
> I am looking at a pretty good deal on a J2240 Workstation and was
> wondering if the Dino/Cujo conflict was resolved that I found in the
> archives?  I only see like 2 folks registered in the hardware database

Umm.. What Dino/Cujo conflict?  ;-)  C360, C240 & C200 have one Dino &
one Cujo.  J2240 has 2 Dinos & 1 Cujo.  So it _ought_ to work.  Maybe the
serial ports might be back-to-front, but that would probably be solvable.

-- 
Revolutions do not require corporate support.


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On Tue, Oct 15, 2002 at 01:13:41PM +0200, Bruno Vidal wrote:
> 	Hi.
> I've succeded to read with iodc, and at the right place (good news no).
> Now I'll try to write. But I prefer to do it on another disk.
> So I've found an old scsi SE. I've plugged it. The driver is able
> to find the hpa, retrieve the iodc ENTRY_INIT without any pb.
> But when calling the ENTRY_INIT with INIT_MOD_DEV or only INIT_DEV
> it fail with return code -9. But there is a little pb, I don't
> have this return code in documentation. If I believe the the 
> "parisc 1.1 IO firmware Architecture".
> I didn't find it for parisc 2.0 (on 
> http://www.parisc-linux.org/documentation/index.html). 
> So if someone know where I can find it.

	-9	Cannot locate a console device or boot device
		The search could not locate a console device or
		boot device on the module. Returned
		only by options ARG1=2 and ARG1=3.
		CONDITIONAL. Must be used if the search options are provided.

-- 
Revolutions do not require corporate support.


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Bruno Vidal wrote:
> If I believe the the
> "parisc 1.1 IO firmware Architecture".


The iodc.pdf document sez (page 3-29) 

ENTRY_INIT(index 3)
....
-9 Cannot locate a console device or boot device
   Returned only by options arg1=2 and arg1=3.


Dunno if it helps.

Phi


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Please take a look to my email -> I'm using arg1=4 or 5
not 2 or 3. 
So how do you explain this -9 for "init & test mod & dev"

	Thanks.

phi wrote:
> 
> Bruno Vidal wrote:
> > If I believe the the
> > "parisc 1.1 IO firmware Architecture".
> 
> The iodc.pdf document sez (page 3-29)
> 
> ENTRY_INIT(index 3)
> ....
> -9 Cannot locate a console device or boot device
>    Returned only by options arg1=2 and arg1=3.
> 
> Dunno if it helps.
> 
> Phi
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Hello.

(HP 712/60 - Debian GNU/Linux 3.0 - 2.4 Kernel)

While using the KBDRATE command, it is returning:
"PCI or EISA Host Bus Adapater 0 note registerer. in8(0x64) returning -1"

And it starts a loop displaying that message in every line until a Ctrl+C is
issued.

Any hints?

[ ]s,
Jeffo.




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Bruno Vidal wrote:
> 
> Please take a look to my email -> I'm using arg1=4 or 5
> not 2 or 3.
> So how do you explain this -9 for "init & test mod & dev"
> 


I red :-) You mentioned 'parisc 1.1 IO firmware Architecture' which is kind of
generic title, then thought you missed the iodc.pdf doc.

> So how do you explain this -9 for "init & test mod & dev"

May be you used arg1 to 2 or 3 when you really wanted 4 or 5 

OR

-9 is also returned for 4 or 5 meaning  meaning
 1: machdep.h:283   #define IODCE_NOSUCHDEV  -9

as returned by scan from ./ISU/mongoose/machdep.h

Cheers,
Phi


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Subject: [parisc-linux] 2.5 status
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In an attempt to get more people involved in the 2.5 porting effort, I'm
going to try to send out weekly updates of what's going on.  Feel free to
respond to things and point out where I'm wrong.

Status:

 - Merged to 2.5.41
 - Booted on an A500
 - Linus released 2.5.42
 - Don't know what patches need to be integrated into Linus' tree
 - Don't know what other patches need to be brought forward from 2.4

Todo:

 - Serial code not working for a 712 (willy)
 - the fix for do_fork needs checking
 - stifb doesn't compile
 - mux driver needs to be forward ported from 2.4 (rbrad)
 - merge 2.5.42
 - think the tcpdiag_cookie patch in our tree is now obsolete
 - need to get an official number for PDC_CONS or MUX (any problem with using
	the same number for both?) (rbrad)
 - send .text.init -> .init.text change to Linus (willy)
 - send tulip changes to jgarzik (grant)
 - figure out why we have genrtc 1.05 in our tree when linus has 1.06
 - do a better job of vmlinux{32,64}.lds
 - review diff vs 2.4 for additional changes
 - review diff vs 2.5 for changes which still need to be sent to Linus.

would these lists be more useful in html or would they just bitrot?

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] 2.5 status
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>  - Serial code not working for a 712 (willy)
>  - the fix for do_fork needs checking
>  - stifb doesn't compile
>  - mux driver needs to be forward ported from 2.4 (rbrad)
>  - merge 2.5.42
>  - think the tcpdiag_cookie patch in our tree is now obsolete
>  - need to get an official number for PDC_CONS or MUX (any problem with using
> 	the same number for both?) (rbrad)
>  - send .text.init -> .init.text change to Linus (willy)
>  - send tulip changes to jgarzik (grant)
>  - figure out why we have genrtc 1.05 in our tree when linus has 1.06
>  - do a better job of vmlinux{32,64}.lds
>  - review diff vs 2.4 for additional changes
>  - review diff vs 2.5 for changes which still need to be sent to Linus.

- show_trace()/show_stack() etc need to be implemented for parisc. right
now they are just empty stubs. i have some initial versions of these
that are probably not quite correct. will look into it some more.
- our PDC early debug console hacks need to be cleaned up somehow
- pci serial is broken still in 2.5.41, may be fixed in 2.5.42
- drivers/pci/setup-bus.c has a hppa-specific #ifdef right now to
  prevent pci reinit from hpmc'ing the machine. this probably needs to
  go upstream

> would these lists be more useful in html or would they just bitrot?

email's good.... :-) perhaps keep the list in cvs (so people can
add/remove items) and you can post it periodically.

thanks,
randolph


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> The following piece of code compiles with gcc-3.0 but not with
> gcc-3.2... is this a gcc bug? or is the code broken?

I would say the later.

> tausq@a500:~$ gcc-3.2 -c t.c
> t.c: In function `foo':
> t.c:12: initializer element is not constant
> 
> (it's a simplified example of some code from the parisc-linux kernel)
> 
> ---------------------8<-----------------------
> /* compile with gcc -c foo.c */
> 
> typedef struct {
>         volatile unsigned int lock;
> } spinlock_t;
> 
> typedef struct {
>         spinlock_t lock;
>         volatile int counter;
> } rwlock_t;
> 
> void foo(void)
> {
>         static rwlock_t x = (rwlock_t) { (spinlock_t) { 1 }, 0 };
> }

Except for sizeof, cast operators in initializers for static variables
can only be used to convert arithmetic types.  GCC allows non-constant
initializers for automatic variables.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> In an attempt to get more people involved in the 2.5 porting effort, I'm
> going to try to send out weekly updates of what's going on.  Feel free to
> respond to things and point out where I'm wrong.

Thanks Willy :)
 
>  - Serial code not working for a 712 (willy)
>  - the fix for do_fork needs checking
>  - stifb doesn't compile

Didn't Helge just fix this?

>  - mux driver needs to be forward ported from 2.4 (rbrad)
>  - merge 2.5.42
>  - think the tcpdiag_cookie patch in our tree is now obsolete
>  - need to get an official number for PDC_CONS or MUX (any problem with using
> 	the same number for both?) (rbrad)
>  - send .text.init -> .init.text change to Linus (willy)
>  - send tulip changes to jgarzik (grant)
>  - figure out why we have genrtc 1.05 in our tree when linus has 1.06
>  - do a better job of vmlinux{32,64}.lds
>  - review diff vs 2.4 for additional changes

e.g. Things in 2.4 not in 2.5?

>  - review diff vs 2.5 for changes which still need to be sent to Linus.
> would these lists be more useful in html or would they just bitrot?

Sending things to the mailing list gets you both:
- HTML based ref. of list archives.
- Ever present reminder in my parisc-linux folder.

Here's to getting all of the PA changes into 2.5! :)

c.



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This is a multi-part message in MIME format.

------=_NextPart_000_001B_01C274B3.1E20A8A0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit

Hi,
take a look at your dmesg output. There you find something like:
model 9000/735
CPU(s): 1 x PA7100 (PCX-T) at 125.000000 MHz
STI GSC/PCI graphics driver version 0.9
STI device: HPA1439A
fb0: stifb 1280x1024-32 frame buffer device, id: 26d148ee, mmio: 0xf8100000

So it tells me I have a HP 9000/735/125 with 1280x1024x32 framebuffer...
On http://www.openpa.net/index.html you find descriptions and pictures of HP
700 machines. I also attached my XFree86conf-4, that should work, but you
may have to change color depth.

Greetings,
Yves...

> Hi,
> I just installed Debian 3.0 on an Apollo Series 700.
> I'm not sure of the model, but it has 96 Meg memory
> and a beautiful 19" 1280x1024 Sync on Green monitor.
>
> I have gotten it to boot fine, but cannot get xfree86
> configured for graphics.  It does not come up with any
> info during the install, and I cannot find any info on
> what graphics system it has.  I did see on a hardware
> list that it may have Coral SGC, but do not see this
> supported by XFree86.
>
> Thank you!
> Roland Hauff


------=_NextPart_000_001B_01C274B3.1E20A8A0
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	name="XF86Config-4"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="XF86Config-4"

#=0A=
# This XFree86 config files is usable for HIL and USB keyboards and mice=0A=
# by Helge Deller <deller@gmx.de> 2002-07-06=0A=
#=0A=
# Please adjust the "depth" and "Modes" entries below in the Screen =
Section=0A=
# acording to your system configuration.=0A=
# =0A=
# EXAMPLE:=0A=
# Run the following command on the bash prompt:=0A=
#=0A=
# dmesg | grep stifb=0A=
#=0A=
# and my system gives:=0A=
# fb0: stifb 1280x1024-8 frame buffer device, id: 2b4ded6d, mmio: =
0xf8100000=0A=
# so I'm using "Depth 8" and "Modes 1280x1024" below.=0A=
#=0A=
=0A=
Section "Files"=0A=
	FontPath	"unix/:7100"			# local font server=0A=
	# if the local font server has problems, we can fall back on these=0A=
	FontPath	"/usr/lib/X11/fonts/misc"=0A=
	FontPath	"/usr/lib/X11/fonts/cyrillic"=0A=
	FontPath	"/usr/lib/X11/fonts/100dpi/:unscaled"=0A=
	FontPath	"/usr/lib/X11/fonts/75dpi/:unscaled"=0A=
	FontPath	"/usr/lib/X11/fonts/Type1"=0A=
	FontPath	"/usr/lib/X11/fonts/Speedo"=0A=
	FontPath	"/usr/lib/X11/fonts/100dpi"=0A=
	FontPath	"/usr/lib/X11/fonts/75dpi"=0A=
EndSection=0A=
=0A=
Section "Module"=0A=
	Load	"GLcore"=0A=
	Load	"bitmap"=0A=
	Load	"dbe"=0A=
	Load	"ddc"=0A=
	Load	"dri"=0A=
	Load	"extmod"=0A=
	Load	"freetype"=0A=
	Load	"glx"=0A=
	Load	"int10"=0A=
	Load	"pex5"=0A=
	Load	"record"=0A=
	Load	"speedo"=0A=
	Load	"type1"=0A=
	Load	"vbe"=0A=
	Load	"xie"=0A=
EndSection=0A=
=0A=
Section "InputDevice"=0A=
	Identifier	"Keyboard"=0A=
	Driver		"keyboard"=0A=
	Option		"CoreKeyboard"=0A=
#	Option		"XkbLayout"	"de"=0A=
EndSection=0A=
=0A=
Section "InputDevice"=0A=
	Identifier	"Mouse"=0A=
	Driver		"mouse"=0A=
	Option		"CorePointer"=0A=
	Option		"Device"		"/dev/input/mice"=0A=
	Option		"Protocol"		"ImPS/2"=0A=
	Option		"ZAxisMapping"		"4 5"=0A=
EndSection=0A=
=0A=
					     =0A=
Section "Device"=0A=
	Identifier	"Generic Video Card"=0A=
	Driver		"fbdev"=0A=
	Option		"UseFBDev"		"true"=0A=
EndSection=0A=
=0A=
Section "Monitor"=0A=
	Identifier	"Generic Monitor"=0A=
	HorizSync	30-70=0A=
	VertRefresh	50-160=0A=
	Option		"DPMS"=0A=
EndSection=0A=
=0A=
Section "Screen"=0A=
	Identifier	"Default Screen"=0A=
	Device		"Generic Video Card"=0A=
	Monitor		"Generic Monitor"=0A=
	DefaultDepth	24=0A=
	DefaultFbBpp	32=0A=
	SubSection "Display"=0A=
		Depth		24		# 8 or 24=0A=
		Modes		"1280x1024"	# "1024x768" or "1280x1024"=0A=
	EndSubSection=0A=
EndSection=0A=
=0A=
Section "ServerLayout"=0A=
	Identifier	"Default Layout"=0A=
	Screen		"Default Screen"=0A=
	InputDevice	"Keyboard"=0A=
	InputDevice	"Mouse"=0A=
EndSection=0A=
=0A=
Section "DRI"=0A=
	Mode	0666=0A=
EndSection=0A=

------=_NextPart_000_001B_01C274B3.1E20A8A0--



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Subject: Re: [parisc-linux] possible gcc-3.2 bug?
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> > ---------------------8<-----------------------
> > /* compile with gcc -c foo.c */
> > 
> > typedef struct {
> >         volatile unsigned int lock;
> > } spinlock_t;
> > 
> > typedef struct {
> >         spinlock_t lock;
> >         volatile int counter;
> > } rwlock_t;
> > 
> > void foo(void)
> > {
> >         static rwlock_t x = (rwlock_t) { (spinlock_t) { 1 }, 0 };
> > }
> 
> Except for sizeof, cast operators in initializers for static variables
> can only be used to convert arithmetic types.  GCC allows non-constant
> initializers for automatic variables.

well, it's doesn't seem to be very consistent about it then...

static rwlock_t x = (rwlock_t) { { 1 }, 0 };
is ok

static rwlock_t x = { (spinlock_t) { 1 }, 0 };
is also ok

only when you have both casts does it fail...

randolph


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> well, it's doesn't seem to be very consistent about it then...
> 
> static rwlock_t x = (rwlock_t) { { 1 }, 0 };
> is ok
> 
> static rwlock_t x = { (spinlock_t) { 1 }, 0 };
> is also ok
> 
> only when you have both casts does it fail...

Ok, I think I see what is going on.  "(rwlock_t) { { 1 }, 0 }" is
a compound literal (constructor expression).  GCC allows initialization
of static objects by compound literals.  This is not possible in ISO C99.

The initializer list of the compound literal must be constant.  Thus,
nesting of compound literals isn't possible.  So, when you have two
casts in the initializer you get the error.  For more info, look at
extend.texi.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi all,

For kernel 2.4.19 I prefer to go to cvs release of xfs;?

So I build a 'patch' against vanilla k-2.4.19 and apply it against k-2.4.19-pa22.

(Just met a problem of conflict: see early in this ml)

But the build failled because:
"../xfs_bmap_btree.h:661:35: "0" may not appear in macro parameter list"

and in this header I found:
"...
#else
...
#define xfs_bmbt_disk_set_allf(r, 0, b, c, v) \
        xfs_bmbt_set_allf(r, 0, b, c, v)
#endif
...
"

just above there are:
void
xfs_bmbt_disk_set_allf(
        xfs_bmbt_rec_t  *r,
        xfs_fileoff_t   o,
        xfs_fsblock_t   b,
        xfs_filblks_t   c,
        xfs_exntst_t    v);

What do you think?
(is it a typo to be reported or a problem specific to hppa gcc?)

Thanks in advance for advise,
    Joel




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Subject: Re: [parisc-linux] New hppa64 toolchain available
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> ftp://ftp.parisc-linux.org/unofficial-debs/gcc-hppa64_3.0.4ds3- 
> 7_hppa.deb

this is now superceded by

ftp://ftp.parisc-linux.org/unofficial-debs/gcc-hppa64_3.0.4ds3-7.1_hppa.deb

which fixes a problem when using -nostdinc (e.g. when building a kernel)

> Thanks Randolph Chung for making it a debian package :)

and thanks to thibaut for pointing out to me that it's broken :-)

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Arto Jantunen <viiru@debian.org>
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Subject: [parisc-linux] HP9000 problems
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My HP9000/R390 crashes when running a 64-bit kernel (it freezes after
"Enumerating EISA bus") and also crashes when running a 32-bit SMP
kernel. Is anyone working on fixing Linux for a machine like this?

--
Arto Jantunen


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Thank you Yves and Tilo,

Dmesg was a great help, it is a Model 730.  I've
gotten X up and working nicely, the HIL keyboard was a
little stubborn though.  Now I'm trying to get an ISA
Ethernet card going, but I'll post a new  letter to
get the proper subject up.

__________________________________________________
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From: Roland Hauff <rhauff@yahoo.com>
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Subject: [parisc-linux] Installing ISA card on 730
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Hi,

I have a 9000/730 with one EISA slot which is
recognized by the kernel, but cards are not detected. 
I have seen that I need to pass a kernel parameter to
tell it which IRQ to edge trigger, but is that all I
need to do to get the card detected?  I do understand
that I may have to install a driver also depending on
the card.

Thanks!

Roland Hauff

__________________________________________________
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Subject: [parisc-linux] C160 curious network problem
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Hello folks,
I just picked up an old C160 at auction, and while I'm no stranger to linux,
I've never dealt with anything quite like this.

The following info may be of use to people having some trouble with similar
setups. The machine has the following specs:

128MB RAM (as is standard)
A4071B graphics card (24 bit)
J3516A 10/100 network card (this is a dual channel card)
Firmware is 6.1 (though I had the same quirk with 5.0)

I've tested the debian 3.0 release and several of the recent netboot images
(kernel 2.4.19) and the quirk persists.

When I try to install any parisc-linux image I get so far as the network
configuration then the machine hangs, heartbeat stops and some diagnostic
pattern is repeated on the front panel LED's. (does anyone have a list of
these diagnostic patterns?)

This only happens if I have no network connected to the onboard LAN
connector (or perhaps it's because I DO have the cable plugged into the
addon card). Even dropping to a shell at the earliest time and typing
"ifconfig  eth0 192.168.0.8" will cause the hang. I'm pretty sure the same
happens with the other interfaces as well because I tried them during normal
setup and it hung.

If I connect the network cable to the built in LAN socket I don't have the
problem, I can switch to the addon card directly after the network setup is
done, and continue to install packages via the internet. Of course it's a
pain because I's rather keep the cable in a 100 Mbit capable port all the
time, not have to stuff about at boot time.

Is it something to do with the order the ports are assigned in by linux?
eth0 - J3516A port 1
eth1 - J3516A port 2
eth2 - onboard

The other thing, which may have been discussed already in the list (though I
did have a bit of a look fo it) is that the system seems to hang for 10-15
minutes during install and during normal boot after installation. During
this time the heartbeat slows to a crawl, the usual pulse-pulse pattern
slows to about 1 second for each of the two pulses, with the time in between
beats being an agonizing wait. After 10-15 mins, it all comes back to life
and continues booting! Has anyone encountered this or even solved it.

Cheers,
Dylan



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Subject: Re: [parisc-linux] C160 curious network problem
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On Fri, 18 Oct 2002, Crazy Ape wrote:
> Hello folks,
> I just picked up an old C160 at auction, and while I'm no stranger to linux,
> I've never dealt with anything quite like this.
[snip]
> When I try to install any parisc-linux image I get so far as the network
> configuration then the machine hangs, heartbeat stops and some diagnostic
> pattern is repeated on the front panel LED's. (does anyone have a list of
> these diagnostic patterns?)

While I can't help you with most of this, I *do* have a PDF of the
C-series owner's manual, which lists all the LED codes...

http://www.alaskatech.org/C180-manual.pdf




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Subject: [parisc-linux] FW: [Bug #3332] jfs-1.0.22 and 1.0.23 break fb console on k-2.4.19-pa22
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Hi all,

May be much hppa specific problem.

All advise is well come.

Thanks in advance,
    Joel


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To: joel.soete@tiscali.be
Subject: [Bug #3332] jfs-1.0.22 and 1.0.23 break fb console on k-2.4.19-pa22
From: admin@www-124.southbury.usf.ibm.com

Bug #3332 has been submitted pending email address confirmation. 
Here is a current snapshot of the bug.

Project: 
Category: kernel
Status: Open
Bug Group: bug
Priority: 5
Summary: jfs-1.0.22 and 1.0.23 break fb console on k-2.4.19-pa22

Details: Hi all,

Test your tools, I test early with success 1.0.17 (against k-2.4.18-pa54 and latter).

Today, after spending some time to fix some evms tools problems, I update jfs against last k-2.4.19-pa20 (and latter) with release 1.0.22 and next 1.0.23.

I build successfully a jfs on a evms lvm, populate it, fsck all seems ok.

Just an anoying problem the fb console is broken:
just when kernel launches to detect the first scsi device the screen scroll stop and the rest of messages are all display over others on  the very top line of the screen.

Thanks in advance for help,
    Joel

Thank you for submitting your bug. To have your bug published, visit the following url:

http://www-124.ibm.com/developerworks/bugs/verify.php?confirm_hash=9001bfa38f3e1a4b

 -- the IBM OSS staff



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Subject: Re: [parisc-linux] Dump driver: step by step
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This is a multi-part message in MIME format.
--------------B0F7A425023EC0FFE255DD2C
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	hi
Good news, now I'm able to initialise and read/write on
multiple disk. The solution a new time was a specific
PDC call on PAT system (we don't need it on 712 for example):

dump_pdc_call(PDC_IO, PDC_IO_RESET_DUMP_DEVS, __pa(pdc_result),__pa(dumpdev))

where dumpdev is the list of all "struct device_path".
It would be really interresting if someone is able to
find the "parisc 2.0 I/O firmware" doc, it would gain
a lot's of time to poor little programmers like me.

	Bye.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Arto Jantunen wrote:
> My HP9000/R390 crashes when running a 64-bit kernel (it freezes after
> "Enumerating EISA bus") and also crashes when running a 32-bit SMP
> kernel. Is anyone working on fixing Linux for a machine like this?

right now there's a frenzy to get everything we need into 2.5 linux kernel.

In general, you are welcome to post crash information (console output,
"ser pim" for hpmcs) and indicate which kernel you are running
(if it's a standard, prebuilt kernel). If it's an obvious bug or
catches someone's fancy, it will get fixed. On the 2.4.19 kernel.

grant


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Bruno Vidal wrote:
> 	hi
> Good news, now I'm able to initialise and read/write on
> multiple disk. The solution a new time was a specific
> PDC call on PAT system (we don't need it on 712 for example):
> 
> dump_pdc_call(PDC_IO, PDC_IO_RESET_DUMP_DEVS, __pa(pdc_result),__pa(dumpdev))

IIRC, this call is PAT PDC specific. The reason it was added is PAT PDC
only initializes boot and console devices. The RESET_DUMP_DEVs was added
to initialize a list of devices so IODC could be used in the HPUX
dump path.

> where dumpdev is the list of all "struct device_path".
> It would be really interresting if someone is able to
> find the "parisc 2.0 I/O firmware" doc, it would gain
> a lot's of time to poor little programmers like me.

Best is to scrounge through HPUX source code.
With docs, it's often difficult to know *where* to find the right info.

grant


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Subject: [parisc-linux] asm/offset.h vs asm/offsets.h
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In 2.5, there's a standardised way of generating asm/offsets.h which I think
we ought to move to.  However, it means we lose the #ifdef protection
against compiling for the wrong wordsize; ie:

#ifdef __LP64__
text("#ifndef __LP64__");
text("#error offset.h was generated for 64-bit build; did you do 'make dep'?");
#else
text("#ifdef __LP64__");
text("#error offset.h was generated for 32-bit build; did you do 'make dep'?");
#endif
text("#endif");

can no longer be a part of it.  I'm not sure this is an awful problem
since it's regenerated more consistently than our old offset.h, but it's
something to be aware of before we switch.

-- 
Revolutions do not require corporate support.


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Subject: RE: [parisc-linux] FW: [Bug #3332] jfs-1.0.22 and 1.0.23 break fb console on k-2.4.19-pa22
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>
>Hi all,
>
>May be much hppa specific problem.
>
>All advise is well come.
>
>Thanks in advance,
>    Joel
>
>--- Start of the Attached Message ---
>
>Date: Thu, 17 Oct 2002 12:47:30 -0400
>To: joel.soete@tiscali.be
>Subject: [Bug #3332] jfs-1.0.22 and 1.0.23 break fb console on k-2.4.19-pa22
>From: admin@www-124.southbury.usf.ibm.com
>
>
>Bug #3332 has been submitted pending email address confirmation. 
>Here is a current snapshot of the bug.
>
>Project: 
>Category: kernel
>Status: Open
>Bug Group: bug
>Priority: 5
>Summary: jfs-1.0.22 and 1.0.23 break fb console on k-2.4.19-pa22
>
>Details: Hi all,
>
>Test your tools, I test early with success 1.0.17 (against k-2.4.18-pa54
>and latter).


Hmm I was wrong: I come back to jfs-2.4-1.0.17 against k-2.4.19-pa22 and
the problem is the same. So the actual problem is a change between 2.4.18(pa54)
and 2.4.19(pa22).

Any idea?

>
>Today, after spending some time to fix some evms tools problems, I update
>jfs against last k-2.4.19-pa20 (and latter) with release 1.0.22 and next
>1.0.23.
>
>I build successfully a jfs on a evms lvm, populate it, fsck all seems ok.
>
>Just an anoying problem the fb console is broken:
>just when kernel launches to detect the first scsi device the screen scroll
>stop and the rest of messages are all display over others on  the very top
>line of the screen.
>
>Thanks in advance for help,
>    Joel
>
>Thank you for submitting your bug. To have your bug published, visit the
>following url:
>
>http://www-124.ibm.com/developerworks/bugs/verify.php?confirm_hash=9001bfa38f3e1a4b
>
> -- the IBM OSS staff
>
>
>--- End of the Attached Message ---
>



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Hi All,

Got a brand new linux src 
compiled ok got this rev for this cpu

hpfrcm02:/proc# cat version cpuinfo
Linux version 2.4.19-pa22 (phi@hpfrcm02) (gcc version 3.0.4) #1 Fri Oct 18
13:32:55 CEST 2002
processor       : 0
cpu family      : PA-RISC 1.1d
cpu             : PA7100LC (PCX-L)
cpu MHz         : 80.000000
model           : 9000/712
model name      : Gecko 80 (712/80)
..........


Uname(1) -a goes dumb like this

non root:
=========
hpfrcm02:/home/phi> uname -a
Memory fault

As root:
========
hpfrcm02:/proc# uname -a
Segmentation fault

hpfrcm02:/home/phi> type uname
uname is /bin/uname

hpfrcm02:/home/phi> file /bin/uname
/bin/uname: ELF 32-bit MSB executable, PA-RISC (LP64) version 1 (GNU/Linux),
for
 GNU/Linux 2.4.4, dynamically linked (uses shared libs), stripped

!!! Is it ok? LP64 for pa1.1 ELF32 (may be just an elf glitch without any
consequence)

hpfrcm02:/home/phi> ldd  /bin/uname
        libc.so.6 => /lib/libc.so.6 (0x40028000)
        /lib/ld.so.1 => /lib/ld.so.1 (0x40000000)

Did an apt-get update/upgrade/dist-upgrade, I guess thos shared libs are
currents

Any idea?
Cheers,
Phi


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Hi all,
>
>...
>#define xfs_bmbt_disk_set_allf(r, 0, b, c, v) \
>        xfs_bmbt_set_allf(r, 0, b, c, v)
>#endif
>...
>"
This was a typo fixed in last cvs.

Cheers,
    Joel



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> can no longer be a part of it.  I'm not sure this is an awful problem
> since it's regenerated more consistently than our old offset.h, but it's
> something to be aware of before we switch.

make dep also doesn't seem to be required in 2.5 unless you have
CONFIG_MODVERSIONS, so the error message doesn't fit too well

let's use the "standard" method! :-)

randolph


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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: Re: [parisc-linux] Linux version 2.4.19-pa22 uname -a fault.
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phi wrote:
> Hi All,
> 
> Got a brand new linux src 
> compiled ok got this rev for this cpu
> 
> hpfrcm02:/proc# cat version cpuinfo
> Linux version 2.4.19-pa22 (phi@hpfrcm02) (gcc version 3.0.4) #1 Fri Oct 18
> 13:32:55 CEST 2002
> processor       : 0
> cpu family      : PA-RISC 1.1d
> cpu             : PA7100LC (PCX-L)
> cpu MHz         : 80.000000
> model           : 9000/712
> model name      : Gecko 80 (712/80)
> ..........
> 
> 
> Uname(1) -a goes dumb like this
> 
> non root:
> =========
> hpfrcm02:/home/phi> uname -a
> Memory fault
> 
> As root:
> ========
> hpfrcm02:/proc# uname -a
> Segmentation fault
> 
> hpfrcm02:/home/phi> type uname
> uname is /bin/uname
> 
> hpfrcm02:/home/phi> file /bin/uname
> /bin/uname: ELF 32-bit MSB executable, PA-RISC (LP64) version 1 (GNU/Linux),
> for
>  GNU/Linux 2.4.4, dynamically linked (uses shared libs), stripped
> 
> !!! Is it ok? LP64 for pa1.1 ELF32 (may be just an elf glitch without any
> consequence)
> 
> hpfrcm02:/home/phi> ldd  /bin/uname
>         libc.so.6 => /lib/libc.so.6 (0x40028000)
>         /lib/ld.so.1 => /lib/ld.so.1 (0x40000000)
> 
> Did an apt-get update/upgrade/dist-upgrade, I guess thos shared libs are
> currents
> 
> Any idea?
> Cheers,
> Phi
I saw that recently after dist-upgrading a debian unstable.
There is a bugreport already filled at debian bts.
Dunno if it's closed yet.


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/




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> I saw that recently after dist-upgrading a debian unstable.
> There is a bugreport already filled at debian bts.
> Dunno if it's closed yet.

no it's not. debian's uname has some procinfo patch in it that's quite
broken imo. i'm going to submit a patch for this this weekend.

randolph


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Subject: [parisc-linux] Strange offset with file system parition
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This is a multi-part message in MIME format.
--------------A6C8ECAEACB40A053591D3B6
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

	Hi
I've succeded to produce my first dump using IODC.
I've retrieve it, but I had some difficulties
with ms-dos parition. I'm using "gendisk_head"
to retrieve start/end of a parition. For my sda1
it find 32768. So I'm writing at start+PAGE_SIZE
-> in my case it should be 0x8000 + 0x1000
And When I look by using 
dd if=/dev/sda skip=9 bs=4096 count=1 | hexdump
It's fine, I'm on the right place.

But when doing:
dd if=/dev/sda1 skip=1 bs=4096 count=1 | hexdump
-> I'm not good ?????
There is a difference of 0x600:

hexdump /tmp/sda1.bin | more
0000000 0000 0000 0000 0000 0000 0000 0000 0000
*
0001600 a819 0173 618f 23ed 0000 0005 0000 0778
0001610 0000 0008 0000 1000 0000 0000 0004 0000

-> I found my magic number 0x600 to fare.

But

# hexdump /tmp/sda.bin | more
.
.
0009000 a819 0173 618f 23ed 0000 0005 0000 0778

-> that okay !!!!!!!

So my question: where this difference come from ?

Thanks.


-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
--------------A6C8ECAEACB40A053591D3B6
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Subject: RE: [parisc-linux] jfs-1.0.22 and 1.0.23 break fb console on k-2.4.19-pa22
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>-- Original Message --
>From: jsoe0708@tiscali.be
>Subject: RE: [parisc-linux] FW: [Bug #3332] jfs-1.0.22 and 1.0.23 break
fb
>console on k-2.4.19-pa22
>To: parisc-linux@lists.parisc-linux.org
>Date: Fri, 18 Oct 2002 16:43:08 +0200
>
>
>>
>>Hi all,
>>
>>May be much hppa specific problem.
>>
>>All advise is well come.
>>
>>Thanks in advance,
>>    Joel
>>
>>--- Start of the Attached Message ---
>>
>>Date: Thu, 17 Oct 2002 12:47:30 -0400
>>To: joel.soete@tiscali.be
>>Subject: [Bug #3332] jfs-1.0.22 and 1.0.23 break fb console on k-2.4.19-pa22
>>From: admin@www-124.southbury.usf.ibm.com
>>
>>
>>Bug #3332 has been submitted pending email address confirmation. 
>>Here is a current snapshot of the bug.
>>
>>Project: 
>>Category: kernel
>>Status: Open
>>Bug Group: bug
>>Priority: 5
>>Summary: jfs-1.0.22 and 1.0.23 break fb console on k-2.4.19-pa22
>>
>>Details: Hi all,
>>
>>Test your tools, I test early with success 1.0.17 (against k-2.4.18-pa54
>>and latter).
>
>
>Hmm I was wrong: I come back to jfs-2.4-1.0.17 against k-2.4.19-pa22 and
>the problem is the same. So the actual problem is a change between 2.4.18(pa54)
>and 2.4.19(pa22).
>
>Any idea?

The very first patch 2.4.19 I still have was pa5 and the same problem occur.
It seems definitely that JFS and STI FB in 2.4.19 are incompatible.

Where do I have to start my investigation?

>>Just an anoying problem the fb console is broken:
>>just when kernel launches to detect the first scsi device the screen scroll
>>stop and the rest of messages are all display over others on  the very
top
>>line of the screen.
>>
Thanks in advance for help,
   Joel



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Funny isn't it?

Excepted those anoying problem all seems to work fine (I already 
sucessfully tested a jfs fs (over a evms lvm) and still have to test a xfs).

Really no idea?

Joel

jsoe0708@tiscali.be wrote:
>>-- Original Message --
>>From: jsoe0708@tiscali.be
>>Subject: RE: [parisc-linux] FW: [Bug #3332] jfs-1.0.22 and 1.0.23 break
> 
> fb
> 
>>console on k-2.4.19-pa22
>>To: parisc-linux@lists.parisc-linux.org
>>Date: Fri, 18 Oct 2002 16:43:08 +0200
>>
>>
>>
>>>Hi all,
>>>
>>>May be much hppa specific problem.
>>>
>>>All advise is well come.
>>>
>>>Thanks in advance,
>>>   Joel
>>>
>>>--- Start of the Attached Message ---
>>>
>>>Date: Thu, 17 Oct 2002 12:47:30 -0400
>>>To: joel.soete@tiscali.be
>>>Subject: [Bug #3332] jfs-1.0.22 and 1.0.23 break fb console on k-2.4.19-pa22
>>>From: admin@www-124.southbury.usf.ibm.com
>>>
>>>
>>>Bug #3332 has been submitted pending email address confirmation. 
>>>Here is a current snapshot of the bug.
>>>
>>>Project: 
>>>Category: kernel
>>>Status: Open
>>>Bug Group: bug
>>>Priority: 5
>>>Summary: jfs-1.0.22 and 1.0.23 break fb console on k-2.4.19-pa22
>>>
>>>Details: Hi all,
>>>
>>>Test your tools, I test early with success 1.0.17 (against k-2.4.18-pa54
>>>and latter).
>>
>>
>>Hmm I was wrong: I come back to jfs-2.4-1.0.17 against k-2.4.19-pa22 and
>>the problem is the same. So the actual problem is a change between 2.4.18(pa54)
>>and 2.4.19(pa22).
>>
>>Any idea?
> 
> 
> The very first patch 2.4.19 I still have was pa5 and the same problem occur.
> It seems definitely that JFS and STI FB in 2.4.19 are incompatible.
> 
> Where do I have to start my investigation?
> 
> 
>>>Just an anoying problem the fb console is broken:
>>>just when kernel launches to detect the first scsi device the screen scroll
>>>stop and the rest of messages are all display over others on  the very
>>
> top
> 
>>>line of the screen.
>>>
>>
> Thanks in advance for help,
>    Joel
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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Subject: Re: [parisc-linux] jfs-1.0.23 as well xfs-cvs break fb console on k-2.4.19-pa22
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Joel Soete wrote:
> The very first patch 2.4.19 I still have was pa5 and the same problem occur.
> It seems definitely that JFS and STI FB in 2.4.19 are incompatible.
> Where do I have to start my investigation?
...
> Really no idea?

Sorry. I don't. And until 2.4.19 boots on the A500-6X,
I'm not interested in chasing the JFS/STI issue.

My advice is to start adding printk's in the main vfs_ops entry
points to JFS until you can narrow down which entry point is
having problems. Then start looking STI to see if anything
in the JFS code uses the same services or something.

grant


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] GSP on A500 - Level 14 Alert - Output overvoltage?
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parisc,

Just a quick flitting question that has been in
the back of my mind. When working with an A500
that I have, during a GSP powerdown using "PC", 
I get the following error:

************* SYSTEM ALERT **************
SYSTEM NAME: firin
DATE: 10/19/2002 TIME: 00:24:23
ALERT LEVEL: 14 = Fatal power or environmental problem prevents
operation

REASON FOR ALERT
SOURCE: 4 = power
SOURCE DETAIL: 4 = high voltage DC power   SOURCE ID: FF
PROBLEM DETAIL: 5 = output overvoltage

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       OFF      OFF           OFF       OFF        FLASH
System Power is Off.

0x002000E544FF404F 00000000 00000000 - type  0 = Data Field Unused
0x582008E544FF404F 00006609 13001817 - type 11 = Timestamp 10/19/2002
00:24:23
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:

Is this bad for my hardware :} It was ever so 
nice when I was kernel hacking and I could remotely
control the box's power. However, after such an error
I'm told that:


  The system did not respond to the Power-On command.
  Turn the system power switch Off and On again to reset the system.

Which means I need to be there physically :(
Any help on the matter would be much appreciated.

c.


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Subject: [parisc-linux] Re: GSP on A500 - Level 14 Alert - Output overvoltage?
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Carlos O'Donell wrote:
...
> SOURCE DETAIL: 4 = high voltage DC power   SOURCE ID: FF
> PROBLEM DETAIL: 5 = output overvoltage

this would suggest your site has a voltage regulation problem.
you might get out a DVM and see if that's a persistent problem.

> Is this bad for my hardware :}

I'd think yes. normally the power supplies are designed to handle
something like 5-10% input power variation.

>   The system did not respond to the Power-On command.
>   Turn the system power switch Off and On again to reset the system.

I'd unplug the power too just to be sure it's really reset.

grant


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Grant Grundler wrote:
> I'm getting closer to figuring out why rp2470 (a500-6x) hangs at boot time.

had some ideas to think about/work on.

> Here's the sequence I see so far:
> o scsi_register_host() acquires io_request_lock (tpnt->use_new_eh_code is tru
>   e)
> o scsi_register_host() calls tpnt->detect(tpnt)
> o detect() points to sym53c8xx_detect()
> o sym53c8xx_detect() calls sym_attach() 
> o sym_attach() initializes s.timer to point at sym53c8xx_timer but
>   directly calls sym_timer() to kick off the self-arming timer.
>   timer will pop in 0.5 seconds.

sym_attach() also calls request_irq().
request_irq() *enables* the IRQ for that line.
I suspect this might unmask the timer interrupt as well.
I'll add some debug code and test this out.

And after looking at arch/parisc/kernel/irq.c, I think we have a
race condition in our cpu_irq_ops. ie the eiem value read could be
different if we take an interupt at the wrong moment. ie need to
save_flags/local_irq_disable()/restore around touching the eiem.
If someone seconds that opinion, I'll add/test that.

Lastly, use of IPI to set_eiem() on all CPUs can probably go away.
In 2.5, I was under the impression we no longer require globally
disabling of interrupts - only on the local CPU.  For both 2.4
and 2.5, parisc only needs to mask/unmask the EIEM bit on the CPU
that is the target of that IRQ, not all CPUs. ie if the IPI
is needed, it should just target the same CPU which will handle the
specific external intr.

> o other interfaces are detected/initialized.
> o timer_interrupt() calls timer_bh() and invokes sym53c8xx_timer().
> o sym53c8xx_timer() attempts to reacquire the io_request_lock.  checkmate.

grant


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I remember a while ago that this was not working, but I don't 
remember if any progress has been made yet.  Anything?
Aaron
-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu) [http://wiglaf.cs-i.brandeis.edu/~aaronm]
My sheep has seven gall bladders, that makes me the King of the Universe!


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On Sun, Oct 20, 2002 at 06:57:16PM -0600, Grant Grundler wrote:
> Lastly, use of IPI to set_eiem() on all CPUs can probably go away.
> In 2.5, I was under the impression we no longer require globally
> disabling of interrupts - only on the local CPU.  For both 2.4
> and 2.5, parisc only needs to mask/unmask the EIEM bit on the CPU
> that is the target of that IRQ, not all CPUs. ie if the IPI
> is needed, it should just target the same CPU which will handle the
> specific external intr.

hmm.. not sure about disable_irq() -- certainly sti() is gone and __sti()
is local_irq_disable() in 2.5; but i think enable/disable_irq still act
globally.  i think this is because it's supposed to go and enable/disable
delivery of interrupts in the (io)(s)(a)pic, rather than playing with
the cpu interrupt masks.

-- 
Revolutions do not require corporate support.


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Matthew Wilcox wrote:
> hmm.. not sure about disable_irq() -- certainly sti() is gone and __sti()
> is local_irq_disable() in 2.5; but i think enable/disable_irq still act
> globally.  i think this is because it's supposed to go and enable/disable
> delivery of interrupts in the (io)(s)(a)pic, rather than playing with
> the cpu interrupt masks.

Normally, disable_irq() will only result in the IRQ being disabled
at the PIC. ie if a regular PCI driver calls disable_irq().
But if HP device (eg Dino/IOSAPIC) calls disable_irq(), the IRQ
is in the CPU region and we muck with EIEM.

grant


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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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Subject: [parisc-linux] Pb with shared lib/or keymap after apt-get upgrade
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	Hi
This morning I start to upgrade my system in order
to have latest tools/binaries and so on.
I did:
apt-get update
-> fine
#apt-get upgrade
-> seems fine
But now when lauching /bin/sh (that is a link on /bin/bash):
/bin/sh: Symbol `vi_insertion_keymap' has different size in shared object, consider re-linking
/bin/sh: Symbol `vi_movement_keymap' has different size in shared object, consider re-linking
/bin/sh: Symbol `emacs_standard_keymap' has different size in shared object, consider re-linking
/bin/sh: Symbol `emacs_ctlx_keymap' has different size in shared object, consider re-linking
/bin/sh: Symbol `emacs_meta_keymap' has different size in shared object, consider re-linking

Where it comes from ?
#dpkg -l bash
ii  bash                       2.05a-2                    The GNU Bourne Again SHell

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Subject: Re: [parisc-linux] jfs-1.0.23 as well xfs-cvs break fb console on k-2.4.19-pa22
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Oooh,...

>
>Joel Soete wrote:
>> The very first patch 2.4.19 I still have was pa5 and the same problem
occur.
>> It seems definitely that JFS and STI FB in 2.4.19 are incompatible.
>> Where do I have to start my investigation?
>...
>> Really no idea?
>
>Sorry. I don't. And until 2.4.19 boots on the A500-6X,
>I'm not interested in chasing the JFS/STI issue.
>
>My advice is to start adding printk's in the main vfs_ops entry
>points to JFS until you can narrow down which entry point is
>having problems. Then start looking STI to see if anything
>in the JFS code uses the same services or something.
>

it sounds like a gcc bug:

simply adding "printk("VC: %s: %d\n", __FUNCTION__, __LINE__);" some where
in the middle of take_over_console (to check the way) and the problem is
solved???

I met a similar problem in a evms tools where there was two solutions:
a. changing -O2 to -O0 or -O1
b. using gcc-3.2

But here gcc-3.2 produce well a bootable kernel but afaik there is still
a network connection problem (I try to hack this but the only think I reach
to find is that the last called function was show_stack and that was riht
:-))) )

Hmm I currious to try -O0 on the only console part (if possible)?

Regards,
    Joel



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	Hi
I've found there the problem is: bash is using the libreadline.so.4
-> when I've upgraded the system this morning, this lib has been 
upgraded, but the timestamp for this lib is:
Aug  2 02:03 libreadline.so.4.3
but for bash it is:
Nov 17  2001 /bin/bash

-> bash is older than a lib that it use -> that's not correct.
If I downgrade libreadline to libreadline.so.4.2
it correct the problem. So I think it would be a good
idea to re-link bash with the latest lib.

	Thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Xref: news.gmane.org gmane.linux.ports.parisc:16537

Bruno Vidal wrote:
 > 	Hi
 > I've found there the problem is: bash is using the libreadline.so.4
 > -> when I've upgraded the system this morning, this lib has been
 > upgraded, but the timestamp for this lib is:
 > Aug  2 02:03 libreadline.so.4.3
 > but for bash it is:
 > Nov 17  2001 /bin/bash
 >
 > -> bash is older than a lib that it use -> that's not correct.
 > If I downgrade libreadline to libreadline.so.4.2
 > it correct the problem. So I think it would be a good
 > idea to re-link bash with the latest lib.

I guess you are running debian unstable, which i wouldn't recommend for
a production machine.

Debian unstable is currently _really_ unstable.

We use testing on some of our prod machines (including the webserver),
it seems far more reliable.

Anyway, as usual, userland problems should be reported to debian mailing
lists.

HTH, Greetings,


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/





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On Sat, Oct 12, 2002 at 10:40:33PM -0600, Grant Grundler wrote:
> The problem is we shouldn't see *any* interrupts, not even timers.
> scsi_register_host() used spin_lock_irqsave() to acquire io_request_lock.
> Either someone is clobbering the irqsave or it's being ignored.
> That's the part the still needs to be worked out.

I wonder if this is interesting:

void handle_interruption(int code, struct pt_regs *regs)
{
        unsigned long fault_address = 0;
        unsigned long fault_space = 0;
        struct siginfo si;

        if (code == 1)
            pdc_console_restart();  /* switch back to pdc if HPMC */
        else
            sti();

so if we take, say, a page fault, we reenable interrupts on all CPUs.
Who the hell put this code in there?!

Thanks to Thibaut for finding this particular excrescence during
CONFIG_SMP frobbing on 2.5.  I'm not sure what this should be changed to.
local_irq_enable?  Do we want interrupts enabled at this point?

-- 
Revolutions do not require corporate support.


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On Mon, Oct 21, 2002 at 03:59:32PM +0100, Matthew Wilcox wrote:
> so if we take, say, a page fault, we reenable interrupts on all CPUs.
> Who the hell put this code in there?!
> 
> Thanks to Thibaut for finding this particular excrescence during
> CONFIG_SMP frobbing on 2.5.  I'm not sure what this should be changed to.
> local_irq_enable?  Do we want interrupts enabled at this point?

ok, going back through the CVS logs finds the answer:

http://cvs.parisc-linux.org/obsolete/linux-2.3/arch/parisc/kernel/traps.c#rev1.9

Revision 1.9 / (as text) / (view) - annotate - [select for diffs] , Tue Feb 15 17:02:03 2000 UTC (2 years, 8 months ago) by jsm
Branch: MAIN
Changes since 1.8: +11 -2 lines
Diff to previous 1.8

Enable interrupts in fault path. Trap kernel space faults.

So I think we want to change the sti() call to local_irq_enable().

-- 
Revolutions do not require corporate support.


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> it sounds like a gcc bug:
> 
> simply adding "printk("VC: %s: %d\n", __FUNCTION__, __LINE__);" some where
> in the middle of take_over_console (to check the way) and the problem is
> solved???

unlikely a gcc bug, more likely is that the code has some timing
dependencies and adding printk changed the timing.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>-- Original Message --
>Date: Mon, 21 Oct 2002 09:42:54 -0700
>From: Randolph Chung <randolph@tausq.org>
>To: jsoe0708@tiscali.be
>Cc: Grant Grundler <grundler@dsl2.external.hp.com>,
>	Joel Soete <joel.soete@freebel.net>,
>	parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] jfs-1.0.23 as well xfs-cvs break fb console
on
>k-2.4.19-pa22
>Reply-To: Randolph Chung <randolph@tausq.org>
>http://webmail.tiscali.be/mail/MessageReplyAll?sid=5EE24D73986685F6BB8554D60A54F6B3D78F70EA&userid=jsoe0708@tiscali.be&seq=C&auth=HQABMXGH0KEBXZNU&srcfolder=INBOX&uid=2152&style=frans&abcompose=0
:: envoyer
>
>> it sounds like a gcc bug:
>> 
>> simply adding "printk("VC: %s: %d\n", __FUNCTION__, __LINE__);" some where
>> in the middle of take_over_console (to check the way) and the problem
is
>> solved???
>
>unlikely a gcc bug, more likely is that the code has some timing
>dependencies and adding printk changed the timing.
>
Ok, I see (So I will try some wait to locate more accurately the problem)

Thanks for advise,
    Joel



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Grant,
 
> this would suggest your site has a voltage regulation problem.
> you might get out a DVM and see if that's a persistent problem.

By 'site' do you mean 'external AC'? 

I had assumed that the issue dealt with the internal switching
supply doing the damage.

I shall put the system behind a better UPS and see if the problem
goes away. 
 
> I'd unplug the power too just to be sure it's really reset.

Good point.

c. 



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> it sounds like a gcc bug:

What does a gcc bug sound like ;-)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> I had assumed that the issue dealt with the internal switching
> supply doing the damage.

Yes, the message indicated that the problem was with a DC supply
voltage.  If it's internal, this could damage the circuits in the
system.  CPU chips normally have very tight voltage requirements
for proper operation.  I would check the manual to see what is
recommended when this error occurs.  You measure the voltages
on an unused drive connector, etc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] Re: GSP on A500 - Level 14 Alert - Output overvoltage?
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Carlos O'Donell wrote:
> By 'site' do you mean 'external AC'? 

yes.

> I had assumed that the issue dealt with the internal switching
> supply doing the damage.

hmm...you might be right.

> I shall put the system behind a better UPS and see if the problem
> goes away. 

I'd still measure UPS output just to rule that out.
(Ie something easy to do and something I expect the HW to monitor).

grant


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Aaron,

Still on my TODO list, but no progess has been made yet.

sorry.

- Ryan

On Sun, 2002-10-20 at 19:37, Aaron Macks wrote:
> I remember a while ago that this was not working, but I don't 
> remember if any progress has been made yet.  Anything?
> Aaron
> -- 
> _______________________________________________________
> Aaron Macks(aaronm@cs.brandeis.edu) [http://wiglaf.cs-i.brandeis.edu/~aaronm]
> My sheep has seven gall bladders, that makes me the King of the Universe!
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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Here's the latest todo list, currently being maintained in CVS.  I'd like
to thank everyone who's jumped in to help over the last week; it's been
truly amazing.  Linus is currently away so we can't send anything to him,
but we're in good shape as far as the feature freeze is concerned.

Status:
-------
 - Merged to 2.5.44
 - 2.5.41 booted on an A500; neither 2.5.43 nor 2.5.44 have booted yet.
 - Don't know what other patches need to be brought forward from 2.4
 - SMP doesn't work yet
 - No preemptible support
 - No CPU hotplug support

Todo:
-----
 - review makefiles for safe parallel builds
 - review diff vs 2.4 for additional changes
 - Serial code not working for c3000 (helge)
 - the fix for do_fork needs checking
 - mux driver needs to be forward ported from 2.4 (rbrad)
 - need to get an official number for PDC_CONS or MUX (any problem with using
        the same number for both?) (rbrad)
 - Some options still need Config.help entries
 - figure out whether arch/parisc/kernel/keyboard.c can be deleted.
 - drivers/char/keyboard.c:987:2: warning: #warning "Cannot generate rawmode
        keyboard for your architecture yet."
 - implement synchronize_irq().

 - show_trace()/show_stack() etc need to be implemented for parisc. right
   now they are just empty stubs. i have some initial versions of these
   that are probably not quite correct. will look into it some more.
 - our PDC early debug console hacks need to be cleaned up somehow
 - pci serial is broken still in 2.5.41, may be fixed in 2.5.42
 - drivers/pci/setup-bus.c has a hppa-specific #ifdef right now to
   prevent pci reinit from hpmc'ing the machine. this probably needs to
   go upstream

 - on 64-bit kernel (at least) jiffies/wall_jiffies may get out of sync
   leading to very long loops in kernel/timer.c:update_times
 - arch/parisc/kernel/time.c:gettimeoffset sometimes returns a negative
   offset, which leads to a very long loop in do_gettimeofday
 - random userspace segfaults (UP) - stack pointer seems to be corrupted
   on return from some kernel paths

 - ad1889 driver - stress, debug, ALSA and commit to 2.5 (ggg, tausq, tbone)
 - ns87415 dma doesn't work reliably on suckyio-systems

 - flush_tlb_kernel_range is horribly inefficient
 - flush_icache_user_range could flush just that range rather than the
   entire page.
 - (ab)use kmap/kunmap on 64-bit to eliminate flush_dcache calls.
 - cp_new_stat32 for sys_parisc32.c is inefficient; maybe it's better
   to fill in a tmp stat32 and just do copy_to_user in one go at the end?
 - syscall signal return path needs work
 - task_struct/thread_info split -- task_struct should not be visible in
   entry.S, we need to move some items into thread_info -- this includes
   pt_regs and maybe some of the flags (ptrace, etc)
 - Use zone_highmem for the 256MB of RAM at 64GB on Astro-based machines.
   (NB, what does Stretch do?)

 - call to pdc_suspend_usb() in inventory.c crashes c3k with kernel 2.5
 - fix harmony buffer-overflows
 - fix HIL problem: ksoftirqd eats 100% cpu (kernel 2.4; kernel 2.5?)
 - CONFIG_INTERMEZZO_FS=m doesn't build (or link)
 - CONFIG_REISERFS_FS=m   doesn't build (or link)
 - CONFIG_XFS_FS=m        doesn't build (or link)


 Started and in progress:
 ------------------------
 - port sym53c8xx hppa changes forward (helge)
 - What's going on with CONFIG_HIL? (tbone, for review -> helge?)
 - Look at Config.help too. (tbone, HIL -> helge?)
 - send UTS_MACHINE diff to Linus (willy)
 - send shmem flush to akpm (willy)
 - send personality diff to Linus (willy)
 - send another ARCH_STACK_GROWS_UP diff to Linus (willy)
 - send generic prefetch xor checksums to Linus (willy)
 - send tulip changes to jgarzik (grant)
 - switching Harmony to ALSA (laurent)
 - remove all references to sti(), cli(), save_flags() and restore_flags() (will
y, tbone, ...)


 Done:
 -----
 - stifb & sticon compiles and works (helge)
 - fixed genrtc merge error (willy)
 - sent .text.init -> .init.text change to Linus (willy)
 - port ns87415 hppa changes forward (grant)
 - remove obsolete tcpdiag_cookie patch from our tree (willy)
 - serial console works for 712 (willy)
 - merged 2.5.43 (bame)
 - migrated to asm-offsets.c (willy)
 - forward-ported the loff_t argument fixes from 2.4 (willy)
 - do a better job of vmlinux{32,64}.lds (tausq)
 - merged 2.5.44 (bame)


 CONFIG options without help:
 -----------------------------
 _PDC_CONSOLE
 _USB_OHCI_HCD (add parisc info?)
 _HP_SDC_RTC
 _HIL_MLC
 _HIL_KBD (to improve)
 _HIL_PTR (to improve)

-- 
Revolutions do not require corporate support.


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Matthew Wilcox wrote:
> So I think we want to change the sti() call to local_irq_enable().

I think we want to remove it all together. Since I don't have a PA2.0
book handy, PA1.1 Arch and Instruction Set Manual, page 5-141 says:
	"... Execution of an RFIR instruction when any of the
	PSW Q, I, or R bits are ones is an undefined operation."

When "handle_interrupts()" is done, execution will return to entry.S
and execute "rfir".  I expect RFIR to put I-bit back the way it was.

And anyone decoding state/insns in the trap/fault handler should read
the next page (5-142):
	"Because this sequence restores the state of the execution pipeline,
	it is possible for software to place the processor in states which
	could not result from the execution of any sequence of insns
	not involving interrupts."

Anyway,  I tried both current CVS and removing local_irq_enable().
Both "hung" in sym2 disk search. :^(
Still looking.

thanks,
grant


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> ok, going back through the CVS logs finds the answer:
>
> http://cvs.parisc-linux.org/obsolete/linux-2.3/arch/parisc/kernel/traps.c#rev1.
> 9
>
> Revision 1.9 / (as text) / (view) - annotate - [select for diffs] , Tue Feb 15
> 17:02:03 2000 UTC (2 years, 8 months ago) by jsm
> Branch: MAIN
> Changes since 1.8: +11 -2 lines
> Diff to previous 1.8
>
> Enable interrupts in fault path. Trap kernel space faults.
>
> So I think we want to change the sti() call to local_irq_enable().
>

Oooh, enabling interrupts on all processors is very bad.  Bad jsm, bad
jsm.  I tried to go back and figure out what was going on in my head back
then (2 years, 8 months ago).  Had to rummage around in the CVS attic to
find interruption.S for changes made at the same time.  At the time, user
processes were not being rescheduled properly (we had just turned on user
space), and they were running with I bit off.  I don't really remember why
I thought enabling interrupts here was a good idea.  Probably had
something to do with not wanting to handle faults with the I bit off.  But
that is bogus too (see below). One possible reason is that we didn't
have exception table support yet, and were probably taking kernel space
faults for bogus user addresses in the user copy routines.

Also, at the time we had not begun the SMP support, and the CONFIG_SMP
part of system.h was not filled in, and therefore I just saw the UP
definition of sti.  I probably couldn't imagine that the CONFIG_SMP
support would have sti enabling interrupts on all processors.  Yes, I know
now that that is the solution that Linux has chosen for supporting broken
(non SMP safe) drivers on SMP kernels ...

> Matthew Wilcox wrote:
> > So I think we want to change the sti() call to local_irq_enable().
>
> I think we want to remove it all together. Since I don't have a PA2.0
> book handy, PA1.1 Arch and Instruction Set Manual, page 5-141 says:
>         "... Execution of an RFIR instruction when any of the
>         PSW Q, I, or R bits are ones is an undefined operation."
>
> When "handle_interrupts()" is done, execution will return to entry.S
> and execute "rfir".  I expect RFIR to put I-bit back the way it was.

Well, I too think we shouldn't be calling local_irq_enable(), but NOT for
the reason above.  We would have had more severe problems if we called
rfir with I bit on (or Q bit for that matter).  Upon return from
handle_interruption we turn on the I bit, but then later we disable I and
Q before calling rfir in the return path from handle_interruption, so this
is not an issue.

Anyway, it would be bad to handle page faults with the I bit off.  But the
only time we should be coming into handle_interruption with the I bit off
should be during a kernel fault.  And we shouldn't be processing a user
space page fault in that case.

Note that we are currently turning the I bit on when we return from
handle_interruption, so this, so removing the local_irq_enable() is not
going to actually change any behaviour.  I just don't think it is
necessary, and the enablement upon return may be wrong also.  I believe
that the reason I put the original sti in (thinking it was a local cpu I
bit enable only) was based on a wrong understanding of the problem, and
that it was probably fixed the right way later on.

Now, I've also spent some time looking at the I bit enablement at the head
of intr_return in entry.S.  I don't think that is correct either.  But
just removing it is not the correct answer.  I know at one time I was
under the impression that calling schedule() with I bit off was a bad
thing.  But that is wrong.  Other architectures explicitly do this before
checking the RESCHED bit, and it is OK to call schedule with I bit off,
since schedule unconditionally turns it off without saving the I bit state
near the front of the routine with a spin_lock_irq() anyway.

So there MAY be a race condition bug with our checking for rescheds and
signals pending, but it needs more thought (we also check software
interrupts in the same path, need to make sure we do the right thing for
all of that).

Note, I don't think any of this is going to explain the problem specific
to the rp2470.

But, the original bad sti call may very well explain the apt-get SMP bug
(apt-get was causing an unaligned fault, which by itself shouldn't have
been a problem).

John

P.S. I'll try to do a more thorough investigation of the I bit handling
in intr_return tonight.


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On Monday 21 October 2002 11:46 am, John David Anglin wrote:
> > it sounds like a gcc bug:
>
> What does a gcc bug sound like ;-)
>
> Dave
It is an indirect call (Telepathic) -
You have to listen for its echo from the programmer's mouth.
Mike


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I found a bug last night where a program was expecting EWOULDBLOCK, but
we were returning EAGAIN. The kernel returns EAGAIN, which is correct.
However, the Gnu C library says that EWOULDBLOCK should be defined as the
same thing. We didn't do that on parisc linux. Probably because we
borrowed our errno's from HP-UX. But that is wrong.

So, how should we fix this?  I don't think we can avoid breaking binary
compatibility.  The problem is that the kernel returns EWOULDBLOCK in some
cases (I've enclosed a list of files that might affect us below, file
locking and usb being the ones that are most likely to affect us).

I think we should change errno.h to define EWOULDBLOCK as EAGAIN. That
will fix some programs once they are recompiled. Of course, it will
break some others, but they will also be fixed once again once they
are recompiled.

How hard would it be to grep the source of all debian packages, so we
can find which packages should be rebuilt?

John



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> I found a bug last night where a program was expecting EWOULDBLOCK, but
> we were returning EAGAIN. The kernel returns EAGAIN, which is correct.
> However, the Gnu C library says that EWOULDBLOCK should be defined as the
> same thing. We didn't do that on parisc linux. Probably because we
> borrowed our errno's from HP-UX. But that is wrong.

jsm,

this was discussed briefly before, but no one has fixed it yet ... 
see Carlos' post on this subject:
http://lists.parisc-linux.org/hypermail/parisc-linux/9895.html

if people think that is a good solution, we can try to do it.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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OK, I should have checked the archives first. It looks like this issue
has already come up. In that case we fixed the app. But I'm not comfortable
with the fact that we are different from every other architecture here.

Yes, to be completely portable across other Unix flavors, you should
check for both EAGAIN and EWOULDBLOCK. But it would appear that
Gnu C library documentation says they should be the same, and they
ARE the same on all other Linux architectures. So, in my opinion,
we are broken, not the apps.

John

P.S. I know most of you don't care, but the broken app in this case is
telnetd. It drops connections if you blast too much to stdout.


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> On Monday 21 October 2002 11:46 am, John David Anglin wrote:
> > > it sounds like a gcc bug:
> >
> > What does a gcc bug sound like ;-)
> >
> > Dave
> It is an indirect call (Telepathic) -
> You have to listen for its echo from the programmer's mouth.

Ah, something I have been working on ...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

Index: config/pa/pa-64.h
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/pa-64.h,v
retrieving revision 1.12
diff -u -3 -p -r1.12 pa-64.h
--- config/pa/pa-64.h	17 Sep 2002 03:30:37 -0000	1.12
+++ config/pa/pa-64.h	22 Oct 2002 14:04:18 -0000
@@ -1,6 +1,6 @@
 /* Definitions of target machine for GNU compiler, for HPs using the
    64bit runtime model.
-   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2000, 2002 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -76,17 +76,24 @@ Boston, MA 02111-1307, USA.  */
    ?!? This may not work reliably.  Keep an eye out for problems.  */
 #undef SECONDARY_MEMORY_NEEDED_RTX
 
-
 /* ?!? This needs to be made compile-time selectable.
 
    The PA64 runtime model has arguments that grow to higher addresses
    (like most other targets).  The older runtime model has arguments
    that grow to lower addresses.  What fun.  */
 #undef ARGS_GROW_DOWNWARD
-#undef ARG_POINTER_REGNUM
-#define ARG_POINTER_REGNUM 29
-#undef STATIC_CHAIN_REGNUM
-#define STATIC_CHAIN_REGNUM 31
+
+/* Sibling calls should be ok.  They appear to provide a small performance
+   improvement.
+
+   FIXME: There are problems with out-of-range sibcalls using GNU ld.
+   As a temporary workaround, only enable sibcalls when not using GNU
+   ld or when TARGET_LONG_CALLS is true.  GNU ld needs to be fixed to
+   check the distance from the call site to the stub.  It also needs
+   to do a better job placing stubs.  The same problem applies to
+   regular calls but is less severe.  */
+#undef FUNCTION_OK_FOR_SIBCALL
+#define FUNCTION_OK_FOR_SIBCALL(DECL) (!TARGET_GNU_LD || TARGET_LONG_CALLS)
 
 /* If defined, a C expression which determines whether the default
    implementation of va_arg will attempt to pad down before reading the
Index: config/pa/pa-linux.h
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/pa-linux.h,v
retrieving revision 1.26
diff -u -3 -p -r1.26 pa-linux.h
--- config/pa/pa-linux.h	3 Oct 2002 04:05:54 -0000	1.26
+++ config/pa/pa-linux.h	22 Oct 2002 14:04:18 -0000
@@ -196,6 +196,19 @@ Boston, MA 02111-1307, USA.  */
     }								\
   while (0)
 
+/* As well as globalizing the label, we need to encode the label
+   to ensure a plabel is generated in an indirect call.  */
+
+#undef ASM_OUTPUT_EXTERNAL_LIBCALL
+#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN)  		\
+  do								\
+    {								\
+      if (!FUNCTION_NAME_P (XSTR (FUN, 0)))			\
+	hppa_encode_label (FUN);				\
+      (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0));	\
+    }								\
+  while (0)
+
 /* Linux always uses gas.  */
 #undef TARGET_GAS
 #define TARGET_GAS 1
Index: config/pa/pa-protos.h
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/pa-protos.h,v
retrieving revision 1.18
diff -u -3 -p -r1.18 pa-protos.h
--- config/pa/pa-protos.h	20 Oct 2002 22:37:12 -0000	1.18
+++ config/pa/pa-protos.h	22 Oct 2002 14:04:18 -0000
@@ -105,6 +105,8 @@ extern int jump_in_call_delay PARAMS ((r
 extern enum reg_class secondary_reload_class PARAMS ((enum reg_class,
 						      enum machine_mode, rtx));
 extern int hppa_fpstore_bypass_p PARAMS ((rtx, rtx));
+extern int attr_length_millicode_call PARAMS ((rtx, int));
+extern int attr_length_call PARAMS ((rtx, int));
 
 /* Declare functions defined in pa.c and used in templates.  */
 
Index: config/pa/pa.c
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/pa.c,v
retrieving revision 1.183
diff -u -3 -p -r1.183 pa.c
--- config/pa/pa.c	20 Oct 2002 22:37:12 -0000	1.183
+++ config/pa/pa.c	22 Oct 2002 14:04:19 -0000
@@ -95,6 +95,7 @@ hppa_fpstore_bypass_p (out_insn, in_insn
 #endif
 #endif
 
+static struct machine_function * pa_init_machine_status PARAMS ((void));
 static inline rtx force_mode PARAMS ((enum machine_mode, rtx));
 static void pa_combine_instructions PARAMS ((rtx));
 static int pa_can_combine_p PARAMS ((rtx, rtx, rtx, int, rtx, rtx, rtx));
@@ -120,7 +121,16 @@ static const char *pa_strip_name_encodin
 static void pa_globalize_label PARAMS ((FILE *, const char *))
      ATTRIBUTE_UNUSED;
 static void pa_asm_output_mi_thunk PARAMS ((FILE *, tree, HOST_WIDE_INT, tree));
+static void copy_fp_args PARAMS ((rtx))
+     ATTRIBUTE_UNUSED;
+static int length_fp_args PARAMS ((rtx))
+     ATTRIBUTE_UNUSED;
+static struct deferred_plabel *get_plabel PARAMS ((const char *))
+     ATTRIBUTE_UNUSED;
 
+/* Unique rtx for the incoming arg pointer register.  */
+
+rtx arg_pointer_incoming_rtx;
 
 /* Save the operands last given to a compare for use when we
    generate a scc or bcc insn.  */
@@ -149,7 +159,7 @@ static rtx find_addr_reg PARAMS ((rtx));
 /* Keep track of the number of bytes we have output in the CODE subspaces
    during this compilation so we'll know when to emit inline long-calls.  */
 
-unsigned int total_code_bytes;
+unsigned long total_code_bytes;
 
 /* Variables to handle plabels that we discover are necessary at assembly
    output time.  They are output after the current function.  */
@@ -202,6 +212,16 @@ static size_t n_deferred_plabels = 0;
 
 struct gcc_target targetm = TARGET_INITIALIZER;
 
+static struct machine_function *
+pa_init_machine_status ()
+{
+  if (arg_pointer_incoming_rtx == 0)
+    arg_pointer_incoming_rtx
+      = gen_rtx_REG (Pmode, ARG_POINTER_INCOMING_REGNUM);
+
+  return NULL;
+}
+
 void
 override_options ()
 {
@@ -286,7 +306,7 @@ override_options ()
       warning ("PIC code generation is not compatible with fast indirect calls\n");
    }
 
-  if (! TARGET_GAS && write_symbols != NO_DEBUG)
+  if (!TARGET_GAS && write_symbols != NO_DEBUG)
     {
       warning ("-g is only supported when using GAS on this processor,");
       warning ("-g option disabled");
@@ -309,6 +329,9 @@ override_options ()
       targetm.asm_out.unaligned_op.si = NULL;
       targetm.asm_out.unaligned_op.di = NULL;
     }
+
+  if (TARGET_64BIT)
+    init_machine_status = pa_init_machine_status;
 }
 
 /* Return nonzero only if OP is a register of mode MODE,
@@ -3105,7 +3128,7 @@ compute_frame_size (size, fregs_live)
 
   /* Account for space used by the callee general register saves.  */
   for (i = 18; i >= 3; i--)
-    if (regs_ever_live[i])
+    if (regs_ever_live[i] && !call_really_used_regs[i])
       fsize += UNITS_PER_WORD;
 
   /* Round the stack.  */
@@ -3194,14 +3217,14 @@ pa_output_function_prologue (file, size)
   fputs ("\n\t.ENTRY\n", file);
 
   /* If we're using GAS and SOM, and not using the portable runtime model,
-     then we don't need to accumulate the total number of code bytes.  */
+     or function sections, then we don't need to accumulate the total number
+     of code bytes.  */
   if ((TARGET_GAS && TARGET_SOM && ! TARGET_PORTABLE_RUNTIME)
-      /* FIXME: we can't handle long calls for TARGET_64BIT.  */
-      || TARGET_64BIT)
+      || flag_function_sections)
     total_code_bytes = 0;
   else if (INSN_ADDRESSES_SET_P ())
     {
-      unsigned int old_total = total_code_bytes;
+      unsigned long old_total = total_code_bytes;
 
       total_code_bytes += INSN_ADDRESSES (INSN_UID (get_last_nonnote_insn ()));
       total_code_bytes += FUNCTION_BOUNDARY / BITS_PER_UNIT;
@@ -3344,7 +3367,7 @@ hppa_expand_prologue ()
 	}
 
       for (i = 18; i >= 4; i--)
-	if (regs_ever_live[i] && ! call_used_regs[i])
+	if (regs_ever_live[i] && !call_really_used_regs[i])
 	  {
 	    store_reg (i, offset, FRAME_POINTER_REGNUM);
 	    offset += UNITS_PER_WORD;
@@ -3384,7 +3407,7 @@ hppa_expand_prologue ()
 	}
 
       for (i = 18; i >= 3; i--)
-      	if (regs_ever_live[i] && ! call_used_regs[i])
+	if (regs_ever_live[i] && !call_really_used_regs[i])
 	  {
 	    /* If merge_sp_adjust_with_store is nonzero, then we can
 	       optimize the first GR save.  */
@@ -3485,6 +3508,14 @@ hppa_expand_prologue ()
 	}
     }
 
+#ifdef ARG_POINTER_INCOMING_REGNUM
+  if (ARG_POINTER_REGNUM != ARG_POINTER_INCOMING_REGNUM
+      && regs_ever_live[ARG_POINTER_REGNUM])
+    {
+      emit_move_insn (arg_pointer_rtx, arg_pointer_incoming_rtx);
+    }
+#endif
+
   /* FIXME: expand_call and expand_millicode_call need to be fixed to
      prevent insns with frame notes being scheduled in the delay slot
      of calls.  This causes problems because the dwarf2 output code
@@ -3617,7 +3648,7 @@ hppa_expand_epilogue ()
 	}
 
       for (i = 18; i >= 4; i--)
-	if (regs_ever_live[i] && ! call_used_regs[i])
+	if (regs_ever_live[i] && !call_really_used_regs[i])
 	  {
 	    load_reg (i, offset, FRAME_POINTER_REGNUM);
 	    offset += UNITS_PER_WORD;
@@ -3654,7 +3685,7 @@ hppa_expand_epilogue ()
 
       for (i = 18; i >= 3; i--)
 	{
-	  if (regs_ever_live[i] && ! call_used_regs[i])
+	  if (regs_ever_live[i] && !call_really_used_regs[i])
 	    {
 	      /* Only for the first load.
 	         merge_sp_adjust_with_load holds the register load
@@ -3755,7 +3786,7 @@ hppa_profile_hook (label_no)
   begin_label_rtx = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (begin_label_name));
 
   if (TARGET_64BIT)
-    emit_move_insn (arg_pointer_rtx,
+    emit_move_insn (arg_pointer_incoming_rtx,
 		    gen_rtx_PLUS (word_mode, virtual_outgoing_args_rtx,
 				  GEN_INT (64)));
 
@@ -3798,7 +3829,8 @@ hppa_profile_hook (label_no)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
       if (TARGET_64BIT)
-	use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_rtx);
+	use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn),
+		 arg_pointer_incoming_rtx);
 
       emit_move_insn (pic_offset_table_rtx, hppa_pic_save_rtx ());
     }
@@ -4723,6 +4755,47 @@ output_global_address (file, x, round_co
     output_addr_const (file, x);
 }
 
+static struct deferred_plabel *
+get_plabel (fname)
+     const char *fname;
+{
+  size_t i;
+
+  /* See if we have already put this function on the list of deferred
+     plabels.  This list is generally small, so a liner search is not
+     too ugly.  If it proves too slow replace it with something faster.  */
+  for (i = 0; i < n_deferred_plabels; i++)
+    if (strcmp (fname, deferred_plabels[i].name) == 0)
+      break;
+
+  /* If the deferred plabel list is empty, or this entry was not found
+     on the list, create a new entry on the list.  */
+  if (deferred_plabels == NULL || i == n_deferred_plabels)
+    {
+      const char *real_name;
+
+      if (deferred_plabels == 0)
+	deferred_plabels = (struct deferred_plabel *)
+	  ggc_alloc (sizeof (struct deferred_plabel));
+      else
+	deferred_plabels = (struct deferred_plabel *)
+	  ggc_realloc (deferred_plabels,
+		       ((n_deferred_plabels + 1)
+			* sizeof (struct deferred_plabel)));
+
+      i = n_deferred_plabels++;
+      deferred_plabels[i].internal_label = gen_label_rtx ();
+      deferred_plabels[i].name = ggc_strdup (fname);
+
+      /* Gross.  We have just implicitly taken the address of this function,
+	 mark it as such.  */
+      real_name = (*targetm.strip_name_encoding) (fname);
+      TREE_SYMBOL_REFERENCED (get_identifier (real_name)) = 1;
+    }
+
+  return &deferred_plabels[i];
+}
+
 void
 output_deferred_plabels (file)
      FILE *file;
@@ -4734,7 +4807,7 @@ output_deferred_plabels (file)
   if (n_deferred_plabels)
     {
       data_section ();
-      ASM_OUTPUT_ALIGN (file, 2);
+      ASM_OUTPUT_ALIGN (file, TARGET_64BIT ? 3 : 2);
     }
 
   /* Now output the deferred plabels.  */
@@ -5141,13 +5214,9 @@ hppa_builtin_saveregs ()
 		       != void_type_node)))
 		? UNITS_PER_WORD : 0);
 
-  if (argadj)
-    offset = plus_constant (current_function_arg_offset_rtx, argadj);
-  else
-    offset = current_function_arg_offset_rtx;
-
   if (TARGET_64BIT)
     {
+      rtx pa64_arg_pointer_rtx = plus_constant (arg_pointer_rtx, -64);
       int i, off;
 
       /* Adjust for varargs/stdarg differences.  */
@@ -5163,19 +5232,24 @@ hppa_builtin_saveregs ()
 				     plus_constant (arg_pointer_rtx, off)),
 			gen_rtx_REG (word_mode, i));
 
+#if 0
       /* The incoming args pointer points just beyond the flushback area;
 	 normally this is not a serious concern.  However, when we are doing
 	 varargs/stdargs we want to make the arg pointer point to the start
 	 of the incoming argument area.  */
-      emit_move_insn (virtual_incoming_args_rtx,
-		      plus_constant (arg_pointer_rtx, -64));
+      emit_move_insn (virtual_incoming_args_rtx, pa64_arg_pointer_rtx);
+#endif
 
       /* Now return a pointer to the first anonymous argument.  */
-      return copy_to_reg (expand_binop (Pmode, add_optab,
-					virtual_incoming_args_rtx,
+      return copy_to_reg (expand_binop (Pmode, add_optab, pa64_arg_pointer_rtx,
 					offset, 0, 0, OPTAB_LIB_WIDEN));
     }
 
+  if (argadj)
+    offset = plus_constant (current_function_arg_offset_rtx, argadj);
+  else
+    offset = current_function_arg_offset_rtx;
+
   /* Store general registers on the stack.  */
   dest = gen_rtx_MEM (BLKmode,
 		      plus_constant (current_function_internal_arg_pointer,
@@ -5320,9 +5394,9 @@ hppa_va_arg (valist, type)
 
 const char *
 output_cbranch (operands, nullify, length, negated, insn)
-  rtx *operands;
-  int nullify, length, negated;
-  rtx insn;
+     rtx *operands;
+     int nullify, length, negated;
+     rtx insn;
 {
   static char buf[100];
   int useskip = 0;
@@ -5496,12 +5570,11 @@ output_cbranch (operands, nullify, lengt
 	  xoperands[1] = operands[1];
 	  xoperands[2] = operands[2];
 	  xoperands[3] = operands[3];
-	  if (TARGET_SOM || ! TARGET_GAS)
-	    xoperands[4] = gen_label_rtx ();
 
 	  output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands);
-	  if (TARGET_SOM || ! TARGET_GAS)
+	  if (!TARGET_GAS)
 	    {
+	      xoperands[4] = gen_label_rtx ();
 	      output_asm_insn ("addil L'%l0-%l4,%%r1", xoperands);
 	      ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
 					 CODE_LABEL_NUMBER (xoperands[4]));
@@ -5533,10 +5606,10 @@ output_cbranch (operands, nullify, lengt
 
 const char *
 output_bb (operands, nullify, length, negated, insn, which)
-  rtx *operands ATTRIBUTE_UNUSED;
-  int nullify, length, negated;
-  rtx insn;
-  int which;
+     rtx *operands ATTRIBUTE_UNUSED;
+     int nullify, length, negated;
+     rtx insn;
+     int which;
 {
   static char buf[100];
   int useskip = 0;
@@ -5681,10 +5754,10 @@ output_bb (operands, nullify, length, ne
 
 const char *
 output_bvb (operands, nullify, length, negated, insn, which)
-  rtx *operands ATTRIBUTE_UNUSED;
-  int nullify, length, negated;
-  rtx insn;
-  int which;
+     rtx *operands ATTRIBUTE_UNUSED;
+     int nullify, length, negated;
+     rtx insn;
+     int which;
 {
   static char buf[100];
   int useskip = 0;
@@ -6040,442 +6113,594 @@ output_movb (operands, insn, which_alter
     }
 }
 
+/* Copy any FP arguments in INSN into integer registers.  */
+static void
+copy_fp_args (insn)
+     rtx insn;
+{
+  rtx link;
+  rtx xoperands[2];
 
-/* INSN is a millicode call.  It may have an unconditional jump in its delay
-   slot.
+  for (link = CALL_INSN_FUNCTION_USAGE (insn); link; link = XEXP (link, 1))
+    {
+      int arg_mode, regno;
+      rtx use = XEXP (link, 0);
 
-   CALL_DEST is the routine we are calling.  */
+      if (! (GET_CODE (use) == USE
+	  && GET_CODE (XEXP (use, 0)) == REG
+	  && FUNCTION_ARG_REGNO_P (REGNO (XEXP (use, 0)))))
+	continue;
 
-const char *
-output_millicode_call (insn, call_dest)
-  rtx insn;
-  rtx call_dest;
-{
-  int attr_length = get_attr_length (insn);
-  int seq_length = dbr_sequence_length ();
-  int distance;
-  rtx xoperands[4];
-  rtx seq_insn;
+      arg_mode = GET_MODE (XEXP (use, 0));
+      regno = REGNO (XEXP (use, 0));
+
+      /* Is it a floating point register?  */
+      if (regno >= 32 && regno <= 39)
+	{
+	  /* Copy the FP register into an integer register via memory.  */
+	  if (arg_mode == SFmode)
+	    {
+	      xoperands[0] = XEXP (use, 0);
+	      xoperands[1] = gen_rtx_REG (SImode, 26 - (regno - 32) / 2);
+	      output_asm_insn ("{fstws|fstw} %0,-16(%%sr0,%%r30)", xoperands);
+	      output_asm_insn ("ldw -16(%%sr0,%%r30),%1", xoperands);
+	    }
+	  else
+	    {
+	      xoperands[0] = XEXP (use, 0);
+	      xoperands[1] = gen_rtx_REG (DImode, 25 - (regno - 34) / 2);
+	      output_asm_insn ("{fstds|fstd} %0,-16(%%sr0,%%r30)", xoperands);
+	      output_asm_insn ("ldw -12(%%sr0,%%r30),%R1", xoperands);
+	      output_asm_insn ("ldw -16(%%sr0,%%r30),%1", xoperands);
+	    }
+	}
+    }
+}
 
-  xoperands[3] = gen_rtx_REG (Pmode, TARGET_64BIT ? 2 : 31);
+/* Compute length of the FP argument copy sequence for INSN.  */
+static int
+length_fp_args (insn)
+     rtx insn;
+{
+  int length = 0;
+  rtx link;
 
-  /* Handle common case -- empty delay slot or no jump in the delay slot,
-     and we're sure that the branch will reach the beginning of the $CODE$
-     subspace.  The within reach form of the $$sh_func_adrs call has
-     a length of 28 and attribute type of multi.  This length is the
-     same as the maximum length of an out of reach PIC call to $$div.  */
-  if ((seq_length == 0
-       && (attr_length == 8
-	   || (attr_length == 28 && get_attr_type (insn) == TYPE_MULTI)))
-      || (seq_length != 0
-	  && GET_CODE (NEXT_INSN (insn)) != JUMP_INSN
-	  && attr_length == 4))
+  for (link = CALL_INSN_FUNCTION_USAGE (insn); link; link = XEXP (link, 1))
     {
-      xoperands[0] = call_dest;
-      output_asm_insn ("{bl|b,l} %0,%3%#", xoperands);
-      return "";
+      int arg_mode, regno;
+      rtx use = XEXP (link, 0);
+
+      if (! (GET_CODE (use) == USE
+	  && GET_CODE (XEXP (use, 0)) == REG
+	  && FUNCTION_ARG_REGNO_P (REGNO (XEXP (use, 0)))))
+	continue;
+
+      arg_mode = GET_MODE (XEXP (use, 0));
+      regno = REGNO (XEXP (use, 0));
+
+      /* Is it a floating point register?  */
+      if (regno >= 32 && regno <= 39)
+	{
+	  if (arg_mode == SFmode)
+	    length += 8;
+	  else
+	    length += 12;
+	}
     }
 
-  /* This call may not reach the beginning of the $CODE$ subspace.  */
-  if (attr_length > 8)
+  return length;
+}
+
+/* We include the delay slot in the returned length as it is better to
+   over estimate the length than to under estimate it.  */
+
+int
+attr_length_millicode_call (insn, length)
+     rtx insn;
+     int length;
+{
+  unsigned long distance = total_code_bytes + INSN_ADDRESSES (INSN_UID (insn));
+
+  if (distance < total_code_bytes)
+    distance = -1;
+
+  if (TARGET_64BIT)
     {
-      int delay_insn_deleted = 0;
+      if (!TARGET_LONG_CALLS && distance < 7600000)
+	return length + 8;
 
-      /* We need to emit an inline long-call branch.  */
-      if (seq_length != 0
-	  && GET_CODE (NEXT_INSN (insn)) != JUMP_INSN)
-	{
-	  /* A non-jump insn in the delay slot.  By definition we can
-	     emit this insn before the call.  */
-	  final_scan_insn (NEXT_INSN (insn), asm_out_file, optimize, 0, 0);
+      return length + 20;
+    }
+  else if (TARGET_PORTABLE_RUNTIME)
+    return length + 24;
+  else
+    {
+      if (!TARGET_LONG_CALLS && distance < 240000)
+	return length + 8;
 
-	  /* Now delete the delay insn.  */
-	  PUT_CODE (NEXT_INSN (insn), NOTE);
-	  NOTE_LINE_NUMBER (NEXT_INSN (insn)) = NOTE_INSN_DELETED;
-	  NOTE_SOURCE_FILE (NEXT_INSN (insn)) = 0;
-	  delay_insn_deleted = 1;
-	}
+      if (TARGET_LONG_ABS_CALL && !flag_pic)
+	return length + 12;
 
-      /* PIC long millicode call sequence.  */
-      if (flag_pic)
-	{
-	  xoperands[0] = call_dest;
-	  if (TARGET_SOM || ! TARGET_GAS)
-	    xoperands[1] = gen_label_rtx ();
+      return length + 24;
+    }
+}
 
-	  /* Get our address + 8 into %r1.  */
-	  output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands);
+/* INSN is a function call.  It may have an unconditional jump
+   in its delay slot.
 
-	  if (TARGET_SOM || ! TARGET_GAS)
-	    {
-	      /* Add %r1 to the offset of our target from the next insn.  */
-	      output_asm_insn ("addil L%%%0-%1,%%r1", xoperands);
-	      ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
-					 CODE_LABEL_NUMBER (xoperands[1]));
-	      output_asm_insn ("ldo R%%%0-%1(%%r1),%%r1", xoperands);
-	    }
-	  else
-	    {
-	      output_asm_insn ("addil L%%%0-$PIC_pcrel$0+4,%%r1", xoperands);
-	      output_asm_insn ("ldo R%%%0-$PIC_pcrel$0+8(%%r1),%%r1",
-			       xoperands);
-	    }
+   CALL_DEST is the routine we are calling.  */
 
-	  /* Get the return address into %r31.  */
-	  output_asm_insn ("blr 0,%3", xoperands);
+const char *
+output_millicode_call (insn, call_dest)
+     rtx insn;
+     rtx call_dest;
+{
+  int attr_length = get_attr_length (insn);
+  int seq_length = dbr_sequence_length ();
+  int distance;
+  rtx seq_insn;
+  rtx xoperands[3];
 
-	  /* Branch to our target which is in %r1.  */
-	  output_asm_insn ("bv,n %%r0(%%r1)", xoperands);
+  xoperands[0] = call_dest;
+  xoperands[2] = gen_rtx_REG (Pmode, TARGET_64BIT ? 2 : 31);
 
-	  /* Empty delay slot.  Note this insn gets fetched twice and
-	     executed once.  To be safe we use a nop.  */
-	  output_asm_insn ("nop", xoperands);
+  /* Handle the common case where we are sure that the branch will
+     reach the beginning of the $CODE$ subspace.  The within reach
+     form of the $$sh_func_adrs call has a length of 28 and attribute
+     type of multi.  This length is the same length as certain
+     out of reach PIC calls to other routines.  The $$sh_func_adrs
+     call never has an insn in the delay slot.  */
+  if (!TARGET_LONG_CALLS
+      && ((seq_length == 0
+	   && (attr_length == 12
+	       || (attr_length == 32 && get_attr_type (insn) == TYPE_MULTI)))
+	  || (seq_length != 0 && attr_length == 8)))
+    {
+      output_asm_insn ("{bl|b,l} %0,%2", xoperands);
+    }
+  else
+    {
+      if (TARGET_64BIT)
+	{
+	  /* It might seem that one insn could be saved by accessing
+	     the millicode function using the linkage table.  However,
+	     this doesn't work in shared libraries and other dynamically
+	     loaded objects.  Using a pc-relative sequence also avoids
+	     problems related to the implicit use of the gp register.  */
+	  output_asm_insn ("b,l .+8,%%r1", xoperands);
+	  output_asm_insn ("addil L'%0-$PIC_pcrel$0+4,%%r1", xoperands);
+	  output_asm_insn ("ldo R'%0-$PIC_pcrel$0+8(%%r1),%%r1", xoperands);
+	  output_asm_insn ("bve,l (%%r1),%%r2", xoperands);
 	}
-      /* Pure portable runtime doesn't allow be/ble; we also don't have
-	 PIC support in the assembler/linker, so this sequence is needed.  */
       else if (TARGET_PORTABLE_RUNTIME)
 	{
-	  xoperands[0] = call_dest;
-	  /* Get the address of our target into %r29.  */
-	  output_asm_insn ("ldil L%%%0,%%r29", xoperands);
-	  output_asm_insn ("ldo R%%%0(%%r29),%%r29", xoperands);
+	  /* Pure portable runtime doesn't allow be/ble; we also don't
+	     have PIC support in the assembler/linker, so this sequence
+	     is needed.  */
+
+	  /* Get the address of our target into %r1.  */
+	  output_asm_insn ("ldil L'%0,%%r1", xoperands);
+	  output_asm_insn ("ldo R'%0(%%r1),%%r1", xoperands);
 
 	  /* Get our return address into %r31.  */
-	  output_asm_insn ("blr %%r0,%3", xoperands);
+	  output_asm_insn ("{bl|b,l} .+8,%%r31", xoperands);
+	  output_asm_insn ("addi 8,%%r31,%%r31", xoperands);
 
-	  /* Jump to our target address in %r29.  */
-	  output_asm_insn ("bv,n %%r0(%%r29)", xoperands);
-
-	  /* Empty delay slot.  Note this insn gets fetched twice and
-	     executed once.  To be safe we use a nop.  */
-	  output_asm_insn ("nop", xoperands);
+	  /* Jump to our target address in %r1.  */
+	  output_asm_insn ("bv %%r0(%%r1)", xoperands);
 	}
-      /* If we're allowed to use be/ble instructions, then this is the
-	 best sequence to use for a long millicode call.  */
-      else
+      else if (!flag_pic)
 	{
-	  xoperands[0] = call_dest;
-	  output_asm_insn ("ldil L%%%0,%3", xoperands);
+	  output_asm_insn ("ldil L'%0,%%r1", xoperands);
 	  if (TARGET_PA_20)
-	    output_asm_insn ("be,l R%%%0(%%sr4,%3),%%sr0,%%r31", xoperands);
+	    output_asm_insn ("be,l R'%0(%%sr4,%%r1),%%sr0,%%r31", xoperands);
 	  else
-	    output_asm_insn ("ble R%%%0(%%sr4,%3)", xoperands);
-	  output_asm_insn ("nop", xoperands);
+	    output_asm_insn ("ble R'%0(%%sr4,%%r1)", xoperands);
 	}
-
-      /* If we had a jump in the call's delay slot, output it now.  */
-      if (seq_length != 0 && !delay_insn_deleted)
+      else
 	{
-	  xoperands[0] = XEXP (PATTERN (NEXT_INSN (insn)), 1);
-	  output_asm_insn ("b,n %0", xoperands);
+	  if (TARGET_SOM || !TARGET_GAS)
+	    {
+	      /* The HP assembler can generate relocations for the
+		 difference of two symbols.  GAS can do this for a
+		 millicode symbol but not an arbitrary external
+		 symbol when generating SOM output.  */
+	      xoperands[1] = gen_label_rtx ();
+	      output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands);
+	      output_asm_insn ("addi 16,%%r1,%%r31", xoperands);
+	      ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+					 CODE_LABEL_NUMBER (xoperands[1]));
+	      output_asm_insn ("addil L'%0-%l1,%%r1", xoperands);
+	      output_asm_insn ("ldo R'%0-%l1(%%r1),%%r1", xoperands);
+	    }
+	  else
+	    {
+	      output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands);
+	      output_asm_insn ("addi 16,%%r1,%%r31", xoperands);
+	      output_asm_insn ("addil L'%0-$PIC_pcrel$0+8,%%r1", xoperands);
+	      output_asm_insn ("ldo R'%0-$PIC_pcrel$0+12(%%r1),%%r1",
+			       xoperands);
+	    }
 
-	  /* Now delete the delay insn.  */
-	  PUT_CODE (NEXT_INSN (insn), NOTE);
-	  NOTE_LINE_NUMBER (NEXT_INSN (insn)) = NOTE_INSN_DELETED;
-	  NOTE_SOURCE_FILE (NEXT_INSN (insn)) = 0;
+	  /* Jump to our target address in %r1.  */
+	  output_asm_insn ("bv %%r0(%%r1)", xoperands);
 	}
-      return "";
     }
 
-  /* This call has an unconditional jump in its delay slot and the
-     call is known to reach its target or the beginning of the current
-     subspace.  */
-
-  /* Use the containing sequence insn's address.  */
-  seq_insn = NEXT_INSN (PREV_INSN (XVECEXP (final_sequence, 0, 0)));
+  if (seq_length == 0)
+    output_asm_insn ("nop", xoperands);
 
-  distance = INSN_ADDRESSES (INSN_UID (JUMP_LABEL (NEXT_INSN (insn))))
-	       - INSN_ADDRESSES (INSN_UID (seq_insn)) - 8;
+  /* We are done if there isn't a jump in the delay slot.  */
+  if (seq_length == 0 || GET_CODE (NEXT_INSN (insn)) != JUMP_INSN)
+    return "";
 
-  /* If the branch was too far away, emit a normal call followed
-     by a nop, followed by the unconditional branch.
+  /* This call has an unconditional jump in its delay slot.  */
+  xoperands[0] = XEXP (PATTERN (NEXT_INSN (insn)), 1);
 
-     If the branch is close, then adjust %r2 from within the
-     call's delay slot.  */
+  /* See if the return address can be adjusted.  Use the containing
+     sequence insn's address.  */
+  seq_insn = NEXT_INSN (PREV_INSN (XVECEXP (final_sequence, 0, 0)));
+  distance = (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (NEXT_INSN (insn))))
+	      - INSN_ADDRESSES (INSN_UID (seq_insn)) - 8);
 
-  xoperands[0] = call_dest;
-  xoperands[1] = XEXP (PATTERN (NEXT_INSN (insn)), 1);
-  if (! VAL_14_BITS_P (distance))
-    output_asm_insn ("{bl|b,l} %0,%3\n\tnop\n\tb,n %1", xoperands);
-  else
+  if (VAL_14_BITS_P (distance))
     {
-      xoperands[2] = gen_label_rtx ();
-      output_asm_insn ("\n\t{bl|b,l} %0,%3\n\tldo %1-%2(%3),%3",
-		       xoperands);
+      xoperands[1] = gen_label_rtx ();
+      output_asm_insn ("ldo %0-%1(%2),%2", xoperands);
       ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
-				 CODE_LABEL_NUMBER (xoperands[2]));
+				 CODE_LABEL_NUMBER (xoperands[3]));
     }
+  else
+    /* ??? This branch may not reach its target.  */
+    output_asm_insn ("nop\n\tb,n %0", xoperands);
 
   /* Delete the jump.  */
   PUT_CODE (NEXT_INSN (insn), NOTE);
   NOTE_LINE_NUMBER (NEXT_INSN (insn)) = NOTE_INSN_DELETED;
   NOTE_SOURCE_FILE (NEXT_INSN (insn)) = 0;
+
   return "";
 }
 
-/* INSN is either a function call.  It may have an unconditional jump
+/* We include the delay slot in the returned length as it is better to
+   over estimate the length than to under estimate it.  */
+
+int
+attr_length_call (insn, sibcall)
+     rtx insn;
+     int sibcall;
+{
+  unsigned long distance = total_code_bytes + INSN_ADDRESSES (INSN_UID (insn));
+
+  if (distance < total_code_bytes)
+    distance = -1;
+
+  if (TARGET_64BIT)
+    {
+      if (!TARGET_LONG_CALLS
+	  && ((sibcall && distance < 240000) || distance < 7600000))
+	return 8;
+
+      return (sibcall ? 28 : 24);
+    }
+  else
+    {
+      if (!TARGET_LONG_CALLS
+	  && ((TARGET_PA_20 && !sibcall && distance < 7600000)
+	      || distance < 240000))
+	return 8;
+
+      if (TARGET_LONG_ABS_CALL && !flag_pic)
+	return 12;
+
+      if ((TARGET_SOM && TARGET_LONG_PIC_SDIFF_CALL)
+	  || (TARGET_GAS && TARGET_LONG_PIC_PCREL_CALL))
+	{
+	  if (TARGET_PA_20)
+	    return 20;
+
+	  return 28;
+	}
+      else
+	{
+	  int length = 0;
+
+	  if (TARGET_SOM)
+	    length += length_fp_args (insn);
+
+	  if (flag_pic)
+	    length += 4;
+
+	  if (TARGET_PA_20)
+	    return (length + 32);
+
+	  if (!sibcall)
+	    length += 8;
+
+	  return (length + 40);
+	}
+    }
+}
+
+/* INSN is a function call.  It may have an unconditional jump
    in its delay slot.
 
    CALL_DEST is the routine we are calling.  */
 
 const char *
 output_call (insn, call_dest, sibcall)
-  rtx insn;
-  rtx call_dest;
-  int sibcall;
+     rtx insn;
+     rtx call_dest;
+     int sibcall;
 {
+  int delay_insn_deleted = 0;
+  int delay_slot_filled = 0;
   int attr_length = get_attr_length (insn);
   int seq_length = dbr_sequence_length ();
-  int distance;
-  rtx xoperands[4];
-  rtx seq_insn;
+  rtx xoperands[2];
 
-  /* Handle common case -- empty delay slot or no jump in the delay slot,
-     and we're sure that the branch will reach the beginning of the $CODE$
-     subspace.  */
-  if ((seq_length == 0 && attr_length == 12)
-      || (seq_length != 0
-	  && GET_CODE (NEXT_INSN (insn)) != JUMP_INSN
-	  && attr_length == 8))
+  xoperands[0] = call_dest;
+
+  /* Handle the common case where we're sure that the branch will reach
+     the beginning of the $CODE$ subspace.  */
+  if (!TARGET_LONG_CALLS
+      && ((seq_length == 0 && attr_length == 12)
+	  || (seq_length != 0 && attr_length == 8)))
     {
-      xoperands[0] = call_dest;
       xoperands[1] = gen_rtx_REG (word_mode, sibcall ? 0 : 2);
-      output_asm_insn ("{bl|b,l} %0,%1%#", xoperands);
-      return "";
+      output_asm_insn ("{bl|b,l} %0,%1", xoperands);
     }
-
-  /* This call may not reach the beginning of the $CODE$ subspace.  */
-  if (attr_length > 12)
+  else
     {
-      int delay_insn_deleted = 0;
-      rtx xoperands[2];
-      rtx link;
-
-      /* We need to emit an inline long-call branch.  Furthermore,
-	 because we're changing a named function call into an indirect
-	 function call well after the parameters have been set up, we
-	 need to make sure any FP args appear in both the integer
-	 and FP registers.  Also, we need move any delay slot insn
-	 out of the delay slot.  And finally, we can't rely on the linker
-	 being able to fix the call to $$dyncall!  -- Yuk!.  */
-      if (seq_length != 0
-	  && GET_CODE (NEXT_INSN (insn)) != JUMP_INSN)
-	{
-	  /* A non-jump insn in the delay slot.  By definition we can
-	     emit this insn before the call (and in fact before argument
-	     relocating.  */
-	  final_scan_insn (NEXT_INSN (insn), asm_out_file, optimize, 0, 0);
-
-	  /* Now delete the delay insn.  */
-	  PUT_CODE (NEXT_INSN (insn), NOTE);
-	  NOTE_LINE_NUMBER (NEXT_INSN (insn)) = NOTE_INSN_DELETED;
-	  NOTE_SOURCE_FILE (NEXT_INSN (insn)) = 0;
-	  delay_insn_deleted = 1;
-	}
-
-      /* Now copy any FP arguments into integer registers.  */
-      for (link = CALL_INSN_FUNCTION_USAGE (insn); link; link = XEXP (link, 1))
-	{
-	  int arg_mode, regno;
-	  rtx use = XEXP (link, 0);
-	  if (! (GET_CODE (use) == USE
-		 && GET_CODE (XEXP (use, 0)) == REG
-		 && FUNCTION_ARG_REGNO_P (REGNO (XEXP (use, 0)))))
-	    continue;
-
-	  arg_mode = GET_MODE (XEXP (use, 0));
-	  regno = REGNO (XEXP (use, 0));
-	  /* Is it a floating point register?  */
-	  if (regno >= 32 && regno <= 39)
-	    {
-	      /* Copy from the FP register into an integer register
-		 (via memory).  */
-	      if (arg_mode == SFmode)
-		{
-		  xoperands[0] = XEXP (use, 0);
-		  xoperands[1] = gen_rtx_REG (SImode, 26 - (regno - 32) / 2);
-		  output_asm_insn ("{fstws|fstw} %0,-16(%%sr0,%%r30)",
-				    xoperands);
-		  output_asm_insn ("ldw -16(%%sr0,%%r30),%1", xoperands);
-		}
-	      else
-		{
-		  xoperands[0] = XEXP (use, 0);
-		  xoperands[1] = gen_rtx_REG (DImode, 25 - (regno - 34) / 2);
-		  output_asm_insn ("{fstds|fstd} %0,-16(%%sr0,%%r30)",
-				    xoperands);
-		  output_asm_insn ("ldw -12(%%sr0,%%r30),%R1", xoperands);
-		  output_asm_insn ("ldw -16(%%sr0,%%r30),%1", xoperands);
-		}
+      if (TARGET_64BIT)
+	{
+	  /* ??? As far as I can tell, the HP linker doesn't support the
+	     long pc-relative sequence described in the 64-bit runtime
+	     architecture.  So, we use a slightly longer indirect call.  */
+	  struct deferred_plabel *p = get_plabel (XSTR (call_dest, 0));
+
+	  xoperands[0] = p->internal_label;
+	  xoperands[1] = gen_label_rtx ();
+
+	  /* If this isn't a sibcall, we put the load of %r27 into the
+	     delay slot.  We can't do this in a sibcall as we don't
+	     have a second call-clobbered scratch register available.  */
+	  if (seq_length != 0
+	      && GET_CODE (NEXT_INSN (insn)) != JUMP_INSN
+	      && !sibcall)
+	    {
+	      final_scan_insn (NEXT_INSN (insn), asm_out_file,
+			       optimize, 0, 0);
+
+	      /* Now delete the delay insn.  */
+	      PUT_CODE (NEXT_INSN (insn), NOTE);
+	      NOTE_LINE_NUMBER (NEXT_INSN (insn)) = NOTE_INSN_DELETED;
+	      NOTE_SOURCE_FILE (NEXT_INSN (insn)) = 0;
+	      delay_insn_deleted = 1;
+	    }
+
+	  output_asm_insn ("addil LT'%0,%%r27", xoperands);
+	  output_asm_insn ("ldd RT'%0(%%r1),%%r1", xoperands);
+	  output_asm_insn ("ldd 0(%%r1),%%r1", xoperands);
+
+	  if (sibcall)
+	    {
+	      output_asm_insn ("ldd 24(%%r1),%%r27", xoperands);
+	      output_asm_insn ("ldd 16(%%r1),%%r1", xoperands);
+	      output_asm_insn ("bve (%%r1)", xoperands);
+	    }
+	  else
+	    {
+	      output_asm_insn ("ldd 16(%%r1),%%r2", xoperands);
+	      output_asm_insn ("bve,l (%%r2),%%r2", xoperands);
+	      output_asm_insn ("ldd 24(%%r1),%%r27", xoperands);
+	      delay_slot_filled = 1;
 	    }
 	}
-
-      /* Don't have to worry about TARGET_PORTABLE_RUNTIME here since
-	 we don't have any direct calls in that case.  */
+      else
 	{
-	  size_t i;
-	  const char *name = XSTR (call_dest, 0);
+	  int indirect_call = 0;
 
-	  /* See if we have already put this function on the list
-	     of deferred plabels.  This list is generally small,
-	     so a liner search is not too ugly.  If it proves too
-	     slow replace it with something faster.  */
-	  for (i = 0; i < n_deferred_plabels; i++)
-	    if (strcmp (name, deferred_plabels[i].name) == 0)
-	      break;
-
-	  /* If the deferred plabel list is empty, or this entry was
-	     not found on the list, create a new entry on the list.  */
-	  if (deferred_plabels == NULL || i == n_deferred_plabels)
-	    {
-	      const char *real_name;
-
-	      if (deferred_plabels == 0)
-		deferred_plabels = (struct deferred_plabel *)
-		  ggc_alloc (sizeof (struct deferred_plabel));
+	  /* Emit a long call.  There are several different sequences
+	     of increasing length and complexity.  In most cases,
+             they don't allow an instruction in the delay slot.  */
+	  if (!(TARGET_LONG_ABS_CALL && !flag_pic)
+	      && !(TARGET_SOM && TARGET_LONG_PIC_SDIFF_CALL)
+	      && !(TARGET_GAS && TARGET_LONG_PIC_PCREL_CALL))
+	    indirect_call = 1;
+
+	  if (seq_length != 0
+	      && GET_CODE (NEXT_INSN (insn)) != JUMP_INSN
+	      && !sibcall
+	      && (!TARGET_PA_20 || indirect_call))
+	    {
+	      /* A non-jump insn in the delay slot.  By definition we can
+		 emit this insn before the call (and in fact before argument
+		 relocating.  */
+	      final_scan_insn (NEXT_INSN (insn), asm_out_file, optimize, 0, 0);
+
+	      /* Now delete the delay insn.  */
+	      PUT_CODE (NEXT_INSN (insn), NOTE);
+	      NOTE_LINE_NUMBER (NEXT_INSN (insn)) = NOTE_INSN_DELETED;
+	      NOTE_SOURCE_FILE (NEXT_INSN (insn)) = 0;
+	      delay_insn_deleted = 1;
+	    }
+
+	  if (TARGET_LONG_ABS_CALL && !flag_pic)
+	    {
+	      /* This is the best sequence for making long calls in
+		 non-pic code.  Unfortunately, GNU ld doesn't provide
+		 the stub needed for external calls, and GAS's support
+		 for this with the SOM linker is buggy.  */
+	      output_asm_insn ("ldil L'%0,%%r1", xoperands);
+	      if (sibcall)
+		output_asm_insn ("be R'%0(%%sr4,%%r1)", xoperands);
 	      else
-		deferred_plabels = (struct deferred_plabel *)
-		  ggc_realloc (deferred_plabels,
-			    ((n_deferred_plabels + 1)
-			     * sizeof (struct deferred_plabel)));
-
-	      i = n_deferred_plabels++;
-	      deferred_plabels[i].internal_label = gen_label_rtx ();
-	      deferred_plabels[i].name = ggc_strdup (name);
-
-	      /* Gross.  We have just implicitly taken the address of this
-		 function, mark it as such.  */
-	      real_name = (*targetm.strip_name_encoding) (name);
-	      TREE_SYMBOL_REFERENCED (get_identifier (real_name)) = 1;
-	    }
-
-	  /* We have to load the address of the function using a procedure
-	     label (plabel).  Inline plabels can lose for PIC and other
-	     cases, so avoid them by creating a 32bit plabel in the data
-	     segment.  */
-	  if (flag_pic)
-	    {
-	      xoperands[0] = deferred_plabels[i].internal_label;
-	      if (TARGET_SOM || ! TARGET_GAS)
-		xoperands[1] = gen_label_rtx ();
-
-	      output_asm_insn ("addil LT%%%0,%%r19", xoperands);
-	      output_asm_insn ("ldw RT%%%0(%%r1),%%r22", xoperands);
-	      output_asm_insn ("ldw 0(%%r22),%%r22", xoperands);
-
-	      /* Get our address + 8 into %r1.  */
-	      output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands);
+		{
+		  if (TARGET_PA_20)
+		    output_asm_insn ("be,l R'%0(%%sr4,%%r1),%%sr0,%%r31",
+				     xoperands);
+		  else
+		    output_asm_insn ("ble R'%0(%%sr4,%%r1)", xoperands);
 
-	      if (TARGET_SOM || ! TARGET_GAS)
+		  output_asm_insn ("copy %%r31,%%r2", xoperands);
+		  delay_slot_filled = 1;
+		}
+	    }
+	  else
+	    {
+	      if (TARGET_SOM && TARGET_LONG_PIC_SDIFF_CALL)
 		{
-		  /* Add %r1 to the offset of dyncall from the next insn.  */
-		  output_asm_insn ("addil L%%$$dyncall-%1,%%r1", xoperands);
+		  /* The HP assembler and linker can handle relocations
+		     for the difference of two symbols.  GAS and the HP
+		     linker can't do this when one of the symbols is
+		     external.  */
+		  xoperands[1] = gen_label_rtx ();
+		  output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands);
+		  output_asm_insn ("addil L'%0-%l1,%%r1", xoperands);
 		  ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
 					     CODE_LABEL_NUMBER (xoperands[1]));
-		  output_asm_insn ("ldo R%%$$dyncall-%1(%%r1),%%r1", xoperands);
-	        }
-	      else
+		  output_asm_insn ("ldo R'%0-%l1(%%r1),%%r1", xoperands);
+		}
+	      else if (TARGET_GAS && TARGET_LONG_PIC_PCREL_CALL)
 		{
-		  output_asm_insn ("addil L%%$$dyncall-$PIC_pcrel$0+4,%%r1",
+		  /*  GAS currently can't generate the relocations that
+		      are needed for the SOM linker under HP-UX using this
+		      sequence.  The GNU linker doesn't generate the stubs
+		      that are needed for external calls on TARGET_ELF32
+		      with this sequence.  For now, we have to use a
+		      longer plabel sequence when using GAS.  */
+		  output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands);
+		  output_asm_insn ("addil L'%0-$PIC_pcrel$0+4,%%r1",
 				   xoperands);
-		  output_asm_insn ("ldo R%%$$dyncall-$PIC_pcrel$0+8(%%r1),%%r1",
+		  output_asm_insn ("ldo R'%0-$PIC_pcrel$0+8(%%r1),%%r1",
 				   xoperands);
 		}
+	      else
+		{
+		  /* Emit a long plabel-based call sequence.  This is
+		     essentially an inline implementation of $$dyncall.
+		     We don't actually try to call $$dyncall as this is
+		     as difficult as calling the function itself.  */
+		  struct deferred_plabel *p = get_plabel (XSTR (call_dest, 0));
+
+		  xoperands[0] = p->internal_label;
+		  xoperands[1] = gen_label_rtx ();
+
+		  /* Since the call is indirect, FP arguments in registers
+		     need to be copied to the general registers.  Then, the
+		     argument relocation stub will copy them back.  */
+		  if (TARGET_SOM)
+		    copy_fp_args (insn);
 
-	      /* Get the return address into %r31.  */
-	      output_asm_insn ("blr %%r0,%%r31", xoperands);
+		  if (flag_pic)
+		    {
+		      output_asm_insn ("addil LT'%0,%%r19", xoperands);
+		      output_asm_insn ("ldw RT'%0(%%r1),%%r1", xoperands);
+		      output_asm_insn ("ldw 0(%%r1),%%r1", xoperands);
+		    }
+		  else
+		    {
+		      output_asm_insn ("addil LR'%0-$global$,%%r27",
+				       xoperands);
+		      output_asm_insn ("ldw RR'%0-$global$(%%r1),%%r1",
+				       xoperands);
+		    }
 
-	      /* Branch to our target which is in %r1.  */
-	      output_asm_insn ("bv %%r0(%%r1)", xoperands);
+		  output_asm_insn ("bb,>=,n %%r1,30,.+16", xoperands);
+		  output_asm_insn ("depi 0,31,2,%%r1", xoperands);
+		  output_asm_insn ("ldw 4(%%sr0,%%r1),%%r19", xoperands);
+		  output_asm_insn ("ldw 0(%%sr0,%%r1),%%r1", xoperands);
 
-	      if (sibcall)
-		{
-		  /* This call never returns, so we do not need to fix the
-		     return pointer.  */
-		  output_asm_insn ("nop", xoperands);
-		}
-	      else
-		{
-		  /* Copy the return address into %r2 also.  */
-		  output_asm_insn ("copy %%r31,%%r2", xoperands);
+		  if (!sibcall && !TARGET_PA_20)
+		    {
+		      output_asm_insn ("{bl|b,l} .+8,%%r2", xoperands);
+		      output_asm_insn ("addi 16,%%r2,%%r2", xoperands);
+		    }
 		}
-	    }
-	  else
-	    {
-	      xoperands[0] = deferred_plabels[i].internal_label;
 
-	      /* Get the address of our target into %r22.  */
-	      output_asm_insn ("addil LR%%%0-$global$,%%r27", xoperands);
-	      output_asm_insn ("ldw RR%%%0-$global$(%%r1),%%r22", xoperands);
-
-	      /* Get the high part of the  address of $dyncall into %r2, then
-		 add in the low part in the branch instruction.  */
-	      output_asm_insn ("ldil L%%$$dyncall,%%r2", xoperands);
 	      if (TARGET_PA_20)
-		output_asm_insn ("be,l R%%$$dyncall(%%sr4,%%r2),%%sr0,%%r31",
-				 xoperands);
-	      else
-		output_asm_insn ("ble R%%$$dyncall(%%sr4,%%r2)", xoperands);
-
-	      if (sibcall)
 		{
-		  /* This call never returns, so we do not need to fix the
-		     return pointer.  */
-		  output_asm_insn ("nop", xoperands);
+		  if (sibcall)
+		    output_asm_insn ("bve (%%r1)", xoperands);
+		  else
+		    {
+		      if (indirect_call)
+			{
+			  output_asm_insn ("bve,l (%%r1),%%r2", xoperands);
+			  output_asm_insn ("stw %%r2,-24(%%sp)", xoperands);
+			  delay_slot_filled = 1;
+			}
+		      else
+			output_asm_insn ("bve,l (%%r1),%%r2", xoperands);
+		    }
 		}
 	      else
 		{
-		  /* Copy the return address into %r2 also.  */
-		  output_asm_insn ("copy %%r31,%%r2", xoperands);
-		}
-	    }
-	}
+	          output_asm_insn ("ldsid (%%r1),%%r31\n\tmtsp %%r31,%%sr0",
+				   xoperands);
 
-      /* If we had a jump in the call's delay slot, output it now.  */
-      if (seq_length != 0 && !delay_insn_deleted)
-	{
-	  xoperands[0] = XEXP (PATTERN (NEXT_INSN (insn)), 1);
-	  output_asm_insn ("b,n %0", xoperands);
+		  if (sibcall)
+		    output_asm_insn ("be 0(%%sr0,%%r1)", xoperands);
+		  else
+		    {
+		      output_asm_insn ("ble 0(%%sr0,%%r1)", xoperands);
 
-	  /* Now delete the delay insn.  */
-	  PUT_CODE (NEXT_INSN (insn), NOTE);
-	  NOTE_LINE_NUMBER (NEXT_INSN (insn)) = NOTE_INSN_DELETED;
-	  NOTE_SOURCE_FILE (NEXT_INSN (insn)) = 0;
+		      if (indirect_call)
+			output_asm_insn ("stw %%r31,-24(%%sp)", xoperands);
+		      else
+			output_asm_insn ("copy %%r31,%%r2", xoperands);
+		      delay_slot_filled = 1;
+		    }
+		}
+	    }
 	}
-      return "";
     }
 
-  /* This call has an unconditional jump in its delay slot and the
-     call is known to reach its target or the beginning of the current
-     subspace.  */
+  if (seq_length == 0 || (delay_insn_deleted && !delay_slot_filled))
+    output_asm_insn ("nop", xoperands);
 
-  /* Use the containing sequence insn's address.  */
-  seq_insn = NEXT_INSN (PREV_INSN (XVECEXP (final_sequence, 0, 0)));
+  /* We are done if there isn't a jump in the delay slot.  */
+  if (seq_length == 0
+      || delay_insn_deleted
+      || GET_CODE (NEXT_INSN (insn)) != JUMP_INSN)
+    return "";
 
-  distance = INSN_ADDRESSES (INSN_UID (JUMP_LABEL (NEXT_INSN (insn))))
-	       - INSN_ADDRESSES (INSN_UID (seq_insn)) - 8;
+  /* A sibcall should never have a branch in the delay slot.  */
+  if (sibcall)
+    abort ();
 
-  /* If the branch is too far away, emit a normal call followed
-     by a nop, followed by the unconditional branch.  If the branch
-     is close, then adjust %r2 in the call's delay slot.  */
+  /* This call has an unconditional jump in its delay slot.  */
+  xoperands[0] = XEXP (PATTERN (NEXT_INSN (insn)), 1);
 
-  xoperands[0] = call_dest;
-  xoperands[1] = XEXP (PATTERN (NEXT_INSN (insn)), 1);
-  if (! VAL_14_BITS_P (distance))
-    output_asm_insn ("{bl|b,l} %0,%%r2\n\tnop\n\tb,n %1", xoperands);
-  else
+  if (!delay_slot_filled)
     {
-      xoperands[3] = gen_label_rtx ();
-      output_asm_insn ("\n\t{bl|b,l} %0,%%r2\n\tldo %1-%3(%%r2),%%r2",
-		       xoperands);
-      ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
-				 CODE_LABEL_NUMBER (xoperands[3]));
+      /* See if the return address can be adjusted.  Use the containing
+         sequence insn's address.  */
+      rtx seq_insn = NEXT_INSN (PREV_INSN (XVECEXP (final_sequence, 0, 0)));
+      int distance = (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (NEXT_INSN (insn))))
+		      - INSN_ADDRESSES (INSN_UID (seq_insn)) - 8);
+
+      if (VAL_14_BITS_P (distance))
+	{
+	  xoperands[1] = gen_label_rtx ();
+	  output_asm_insn ("ldo %0-%1(%%r2),%%r2", xoperands);
+	  ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L",
+				     CODE_LABEL_NUMBER (xoperands[3]));
+	}
+      else
+	/* ??? This branch may not reach its target.  */
+	output_asm_insn ("nop\n\tb,n %0", xoperands);
     }
+  else
+    /* ??? This branch may not reach its target.  */
+    output_asm_insn ("b,n %0", xoperands);
 
   /* Delete the jump.  */
   PUT_CODE (NEXT_INSN (insn), NOTE);
   NOTE_LINE_NUMBER (NEXT_INSN (insn)) = NOTE_INSN_DELETED;
   NOTE_SOURCE_FILE (NEXT_INSN (insn)) = 0;
+
   return "";
 }
 
@@ -6576,8 +6801,8 @@ pa_asm_output_mi_thunk (file, thunk_fnde
     {
       if (! TARGET_64BIT && ! TARGET_PORTABLE_RUNTIME && flag_pic)
 	{
-	  fprintf (file, "\taddil LT%%%s,%%r19\n", lab);
-	  fprintf (file, "\tldw RT%%%s(%%r1),%%r22\n", lab);
+	  fprintf (file, "\taddil LT'%s,%%r19\n", lab);
+	  fprintf (file, "\tldw RT'%s(%%r1),%%r22\n", lab);
 	  fprintf (file, "\tldw 0(%%sr0,%%r22),%%r22\n");
 	  fprintf (file, "\tbb,>=,n %%r22,30,.+16\n");
 	  fprintf (file, "\tdepi 0,31,2,%%r22\n");
@@ -6599,13 +6824,13 @@ pa_asm_output_mi_thunk (file, thunk_fnde
     {
       if (! TARGET_64BIT && ! TARGET_PORTABLE_RUNTIME && flag_pic)
 	{
-	  fprintf (file, "\taddil L%%");
+	  fprintf (file, "\taddil L'");
 	  fprintf (file, HOST_WIDE_INT_PRINT_DEC, delta);
-	  fprintf (file, ",%%r26\n\tldo R%%");
+	  fprintf (file, ",%%r26\n\tldo R'");
 	  fprintf (file, HOST_WIDE_INT_PRINT_DEC, delta);
 	  fprintf (file, "(%%r1),%%r26\n");
-	  fprintf (file, "\taddil LT%%%s,%%r19\n", lab);
-	  fprintf (file, "\tldw RT%%%s(%%r1),%%r22\n", lab);
+	  fprintf (file, "\taddil LT'%s,%%r19\n", lab);
+	  fprintf (file, "\tldw RT'%s(%%r1),%%r22\n", lab);
 	  fprintf (file, "\tldw 0(%%sr0,%%r22),%%r22\n");
 	  fprintf (file, "\tbb,>=,n %%r22,30,.+16\n");
 	  fprintf (file, "\tdepi 0,31,2,%%r22\n");
@@ -6616,9 +6841,9 @@ pa_asm_output_mi_thunk (file, thunk_fnde
 	}
       else
 	{
-	  fprintf (file, "\taddil L%%");
+	  fprintf (file, "\taddil L'");
 	  fprintf (file, HOST_WIDE_INT_PRINT_DEC, delta);
-	  fprintf (file, ",%%r26\n\tb %s\n\tldo R%%", target_name);
+	  fprintf (file, ",%%r26\n\tb %s\n\tldo R'", target_name);
 	  fprintf (file, HOST_WIDE_INT_PRINT_DEC, delta);
 	  fprintf (file, "(%%r1),%%r26\n");
 	}
@@ -6630,7 +6855,7 @@ pa_asm_output_mi_thunk (file, thunk_fnde
       data_section ();
       fprintf (file, "\t.align 4\n");
       ASM_OUTPUT_INTERNAL_LABEL (file, "LTHN", current_thunk_number);
-      fprintf (file, "\t.word P%%%s\n", target_name);
+      fprintf (file, "\t.word P'%s\n", target_name);
       function_section (thunk_fndecl);
     }
   current_thunk_number++;
Index: config/pa/pa.h
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/pa.h,v
retrieving revision 1.173
diff -u -3 -p -r1.173 pa.h
--- config/pa/pa.h	20 Oct 2002 22:37:12 -0000	1.173
+++ config/pa/pa.h	22 Oct 2002 14:04:20 -0000
@@ -31,7 +31,7 @@ enum cmp_type				/* comparison type */
 };
 
 /* For long call handling.  */
-extern unsigned int total_code_bytes;
+extern unsigned long total_code_bytes;
 
 /* Which processor to schedule for.  */
 
@@ -152,6 +152,12 @@ extern int target_flags;
 #define TARGET_GNU_LD (target_flags & MASK_GNU_LD)
 #endif
 
+/* Force generation of long calls.  */
+#define MASK_LONG_CALLS 32768
+#ifndef TARGET_LONG_CALLS
+#define TARGET_LONG_CALLS (target_flags & MASK_LONG_CALLS)
+#endif
+
 #ifndef TARGET_PA_10
 #define TARGET_PA_10 (target_flags & (MASK_PA_11 | MASK_PA_20) == 0)
 #endif
@@ -179,6 +185,27 @@ extern int target_flags;
 #define TARGET_SOM 0
 #endif
 
+/* The following three defines are potential target switches.  The current
+   defines are optimal given the current capabilities of GAS and GNU ld.  */
+
+/* Define to a C expression evaluating to true to use long absolute calls.
+   Currently, only the HP assembler and SOM linker support long absolute
+   calls.  They are used only in non-pic code.  */
+#define TARGET_LONG_ABS_CALL (TARGET_SOM && !TARGET_GAS)
+
+/* Define to a C expression evaluating to true to use long pic symbol
+   difference calls.  This is a call variant similar to the long pic
+   pc-relative call.  Long pic symbol difference calls are only used with
+   the HP SOM linker.  Currently, only the HP assembler supports these
+   calls.  GAS doesn't allow an arbritrary difference of two symbols.  */
+#define TARGET_LONG_PIC_SDIFF_CALL (!TARGET_GAS)
+
+/* Define to a C expression evaluating to true to use long pic
+   pc-relative calls.  Long pic pc-relative calls are only used with
+   GAS.  Currently, they are usable for calls within a module but
+   not for external calls.  */
+#define TARGET_LONG_PIC_PCREL_CALL 0
+
 /* Macro to define tables used to set the flags.  This is a
    list in braces of target switches with each switch being
    { "NAME", VALUE, "HELP_STRING" }.  VALUE is the bits to set,
@@ -237,6 +264,10 @@ extern int target_flags;
      N_("Generate code for huge switch statements") },			\
    { "no-big-switch",		-MASK_BIG_SWITCH,			\
      N_("Do not generate code for huge switch statements") },		\
+   { "long-calls",		 MASK_LONG_CALLS,			\
+     N_("Always generate long calls") },				\
+   { "no-long-calls",		-MASK_LONG_CALLS,			\
+     N_("Generate long calls only when needed") },			\
    { "linker-opt",		 0,					\
      N_("Enable linker optimizations") },				\
    SUBTARGET_SWITCHES							\
@@ -497,15 +528,34 @@ do {								\
 #define INITIAL_FRAME_POINTER_OFFSET(VAR) \
   do {(VAR) = - compute_frame_size (get_frame_size (), 0);} while (0)
 
-/* Base register for access to arguments of the function.  */
-#define ARG_POINTER_REGNUM 3
+/* Base register for access to arguments of the function.
+
+   For TARGET_64BIT, the incoming argument pointer is in GR (29).
+   This register is also used for millicode returns and can't be
+   fixed.  We can't use the frame pointer for the argument pointer
+   because both the stack and arguments grow upward.  The offset
+   between the argument pointer and the stack pointer varies from
+   one caller to another.  This makes it impossible to eliminate
+   the argument pointer.  If we use GR (29) as the arg pointer
+   register, then it is copied to a pseudo in assign_parms because
+   it isn't fixed.  This copy inhibits tail and sibcall optimization.
+   Thus, we need to dedicate a fixed register for the argument
+   pointer and copy the incoming value to it in the function prologue.
+
+   ??? The tail and sibcall optimization problem might be avoided
+   if virtual_incoming_args_rtx were instantiated using the
+   functions's internal argument pointer.
+
+   For !TARGET_64BIT, we can use the frame pointer for the argument
+   pointer as args grow downward.  */
+#define ARG_POINTER_REGNUM (TARGET_64BIT ? 4 : 3)
+#define ARG_POINTER_INCOMING_REGNUM (TARGET_64BIT ? 29 : 3)
 
 /* Register in which static-chain is passed to a function.  */
-#define STATIC_CHAIN_REGNUM 29
+#define STATIC_CHAIN_REGNUM (TARGET_64BIT ? 31 : 29)
 
 /* Register which holds offset table for position-independent
    data references.  */
-
 #define PIC_OFFSET_TABLE_REGNUM (TARGET_64BIT ? 27 : 19)
 #define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED 1
 
@@ -677,7 +727,7 @@ extern struct rtx_def *hppa_pic_save_rtx
    This is the difference between the logical top of stack and the
    actual sp.  */
 #define STACK_POINTER_OFFSET \
-  (TARGET_64BIT ? -(current_function_outgoing_args_size + 16): -32)
+  (TARGET_64BIT ? -(current_function_outgoing_args_size + 16) : -32)
 
 #define STACK_DYNAMIC_OFFSET(FNDECL)	\
   (TARGET_64BIT				\
@@ -893,6 +943,8 @@ struct hppa_args {int words, nargs_proto
   FUNCTION_ARG_PASS_BY_REFERENCE (CUM, MODE, TYPE, NAMED)
 
 
+extern GTY(()) rtx arg_pointer_incoming_rtx;
+
 extern GTY(()) rtx hppa_compare_op0;
 extern GTY(()) rtx hppa_compare_op1;
 extern enum cmp_type hppa_branch_type;
@@ -1888,7 +1940,6 @@ do { 									\
 #define FUNCTION_OK_FOR_SIBCALL(DECL) \
   (DECL \
    && ! TARGET_PORTABLE_RUNTIME \
-   && ! TARGET_64BIT \
    && ! TREE_PUBLIC (DECL))
 
 #define PREDICATE_CODES							\
Index: config/pa/pa.md
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/pa.md,v
retrieving revision 1.113
diff -u -3 -p -r1.113 pa.md
--- config/pa/pa.md	11 Sep 2002 02:45:09 -0000	1.113
+++ config/pa/pa.md	22 Oct 2002 14:04:22 -0000
@@ -105,12 +105,9 @@
 (define_delay (eq_attr "type" "call")
   [(eq_attr "in_call_delay" "true") (nil) (nil)])
 
-;; millicode call delay slot description.  Note it disallows delay slot
-;; when TARGET_PORTABLE_RUNTIME is true.
+;; Millicode call delay slot description.
 (define_delay (eq_attr "type" "milli")
-  [(and (eq_attr "in_call_delay" "true")
-	(eq (symbol_ref "TARGET_PORTABLE_RUNTIME") (const_int 0)))
-   (nil) (nil)])
+  [(eq_attr "in_call_delay" "true") (nil) (nil)])
 
 ;; Return and other similar instructions.
 (define_delay (eq_attr "type" "branch,parallel_branch")
@@ -4089,27 +4086,7 @@
   "!TARGET_64BIT"
   "* return output_mul_insn (0, insn);"
   [(set_attr "type" "milli")
-   (set (attr "length")
-     (cond [
-;; Target (or stub) within reach
-            (and (lt (plus (symbol_ref "total_code_bytes") (pc))
-                     (const_int 240000))
-                 (eq (symbol_ref "TARGET_PORTABLE_RUNTIME")
-                     (const_int 0)))
-            (const_int 4)
-
-;; Out of reach PIC
-            (ne (symbol_ref "flag_pic")
-                (const_int 0))
-            (const_int 24)
-
-;; Out of reach PORTABLE_RUNTIME
-            (ne (symbol_ref "TARGET_PORTABLE_RUNTIME")
-                (const_int 0))
-            (const_int 20)]
-
-;; Out of reach, can use ble
-          (const_int 12)))])
+   (set (attr "length") (symbol_ref "attr_length_millicode_call (insn, 0)"))])
 
 (define_insn ""
   [(set (reg:SI 29) (mult:SI (reg:SI 26) (reg:SI 25)))
@@ -4120,7 +4097,7 @@
   "TARGET_64BIT"
   "* return output_mul_insn (0, insn);"
   [(set_attr "type" "milli")
-   (set (attr "length") (const_int 4))])
+   (set (attr "length") (symbol_ref "attr_length_millicode_call (insn, 0)"))])
 
 (define_expand "muldi3"
   [(set (match_operand:DI 0 "register_operand" "")
@@ -4211,27 +4188,7 @@
   "*
    return output_div_insn (operands, 0, insn);"
   [(set_attr "type" "milli")
-   (set (attr "length")
-     (cond [
-;; Target (or stub) within reach
-            (and (lt (plus (symbol_ref "total_code_bytes") (pc))
-                     (const_int 240000))
-                 (eq (symbol_ref "TARGET_PORTABLE_RUNTIME")
-                     (const_int 0)))
-            (const_int 4)
-
-;; Out of reach PIC
-            (ne (symbol_ref "flag_pic")
-                (const_int 0))
-            (const_int 24)
-
-;; Out of reach PORTABLE_RUNTIME
-            (ne (symbol_ref "TARGET_PORTABLE_RUNTIME")
-                (const_int 0))
-            (const_int 20)]
-
-;; Out of reach, can use ble
-          (const_int 12)))])
+   (set (attr "length") (symbol_ref "attr_length_millicode_call (insn, 0)"))])
 
 (define_insn ""
   [(set (reg:SI 29)
@@ -4245,7 +4202,7 @@
   "*
    return output_div_insn (operands, 0, insn);"
   [(set_attr "type" "milli")
-   (set (attr "length") (const_int 4))])
+   (set (attr "length") (symbol_ref "attr_length_millicode_call (insn, 0)"))])
 
 (define_expand "udivsi3"
   [(set (reg:SI 26) (match_operand:SI 1 "move_operand" ""))
@@ -4261,6 +4218,7 @@
   "
 {
   operands[3] = gen_reg_rtx (SImode);
+
   if (TARGET_64BIT)
     {
       operands[5] = gen_rtx_REG (SImode, 2);
@@ -4287,27 +4245,7 @@
   "*
    return output_div_insn (operands, 1, insn);"
   [(set_attr "type" "milli")
-   (set (attr "length")
-     (cond [
-;; Target (or stub) within reach
-            (and (lt (plus (symbol_ref "total_code_bytes") (pc))
-                     (const_int 240000))
-                 (eq (symbol_ref "TARGET_PORTABLE_RUNTIME")
-                     (const_int 0)))
-            (const_int 4)
-
-;; Out of reach PIC
-            (ne (symbol_ref "flag_pic")
-                (const_int 0))
-            (const_int 24)
-
-;; Out of reach PORTABLE_RUNTIME
-            (ne (symbol_ref "TARGET_PORTABLE_RUNTIME")
-                (const_int 0))
-            (const_int 20)]
-
-;; Out of reach, can use ble
-          (const_int 12)))])
+   (set (attr "length") (symbol_ref "attr_length_millicode_call (insn, 0)"))])
 
 (define_insn ""
   [(set (reg:SI 29)
@@ -4321,7 +4259,7 @@
   "*
    return output_div_insn (operands, 1, insn);"
   [(set_attr "type" "milli")
-   (set (attr "length") (const_int 4))])
+   (set (attr "length") (symbol_ref "attr_length_millicode_call (insn, 0)"))])
 
 (define_expand "modsi3"
   [(set (reg:SI 26) (match_operand:SI 1 "move_operand" ""))
@@ -4360,27 +4298,7 @@
   "*
   return output_mod_insn (0, insn);"
   [(set_attr "type" "milli")
-   (set (attr "length")
-     (cond [
-;; Target (or stub) within reach
-            (and (lt (plus (symbol_ref "total_code_bytes") (pc))
-                     (const_int 240000))
-                 (eq (symbol_ref "TARGET_PORTABLE_RUNTIME")
-                     (const_int 0)))
-            (const_int 4)
-
-;; Out of reach PIC
-            (ne (symbol_ref "flag_pic")
-                (const_int 0))
-            (const_int 24)
-
-;; Out of reach PORTABLE_RUNTIME
-            (ne (symbol_ref "TARGET_PORTABLE_RUNTIME")
-                (const_int 0))
-            (const_int 20)]
-
-;; Out of reach, can use ble
-          (const_int 12)))])
+   (set (attr "length") (symbol_ref "attr_length_millicode_call (insn, 0)"))])
 
 (define_insn ""
   [(set (reg:SI 29) (mod:SI (reg:SI 26) (reg:SI 25)))
@@ -4393,7 +4311,7 @@
   "*
   return output_mod_insn (0, insn);"
   [(set_attr "type" "milli")
-   (set (attr "length") (const_int 4))])
+   (set (attr "length") (symbol_ref "attr_length_millicode_call (insn, 0)"))])
 
 (define_expand "umodsi3"
   [(set (reg:SI 26) (match_operand:SI 1 "move_operand" ""))
@@ -4432,27 +4350,7 @@
   "*
   return output_mod_insn (1, insn);"
   [(set_attr "type" "milli")
-   (set (attr "length")
-     (cond [
-;; Target (or stub) within reach
-            (and (lt (plus (symbol_ref "total_code_bytes") (pc))
-                     (const_int 240000))
-                 (eq (symbol_ref "TARGET_PORTABLE_RUNTIME")
-                     (const_int 0)))
-            (const_int 4)
-
-;; Out of reach PIC
-            (ne (symbol_ref "flag_pic")
-                (const_int 0))
-            (const_int 24)
-
-;; Out of reach PORTABLE_RUNTIME
-            (ne (symbol_ref "TARGET_PORTABLE_RUNTIME")
-                (const_int 0))
-            (const_int 20)]
-
-;; Out of reach, can use ble
-          (const_int 12)))])
+   (set (attr "length") (symbol_ref "attr_length_millicode_call (insn, 0)"))])
 
 (define_insn ""
   [(set (reg:SI 29) (umod:SI (reg:SI 26) (reg:SI 25)))
@@ -4465,7 +4363,7 @@
   "*
   return output_mod_insn (1, insn);"
   [(set_attr "type" "milli")
-   (set (attr "length") (const_int 4))])
+   (set (attr "length") (symbol_ref "attr_length_millicode_call (insn, 0)"))])
 
 ;;- and instructions
 ;; We define DImode `and` so with DImode `not` we can get
@@ -6012,7 +5910,7 @@
     op = XEXP (operands[0], 0);
 
   if (TARGET_64BIT)
-    emit_move_insn (arg_pointer_rtx,
+    emit_move_insn (arg_pointer_incoming_rtx,
 		    gen_rtx_PLUS (word_mode, virtual_outgoing_args_rtx,
 				  GEN_INT (64)));
 
@@ -6036,11 +5934,12 @@
       call_insn = emit_call_insn (gen_call_internal_reg (operands[1]));
     }
 
+  if (TARGET_64BIT)
+    use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_incoming_rtx);
+
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      if (TARGET_64BIT)
-	use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_rtx);
 
       /* After each call we must restore the PIC register, even if it
 	 doesn't appear to be used.  */
@@ -6052,6 +5951,7 @@
 (define_insn "call_internal_symref"
   [(call (mem:SI (match_operand 0 "call_operand_address" ""))
 	 (match_operand 1 "" "i"))
+   (clobber (reg:SI 1))
    (clobber (reg:SI 2))
    (use (const_int 0))]
   "! TARGET_PORTABLE_RUNTIME"
@@ -6061,21 +5961,7 @@
   return output_call (insn, operands[0], 0);
 }"
   [(set_attr "type" "call")
-   (set (attr "length")
-;;       If we're sure that we can either reach the target or that the
-;;	 linker can use a long-branch stub, then the length is at most
-;;	 8 bytes.
-;;
-;;	 For long-calls the length will be at most 68 bytes (non-pic)
-;;	 or 84 bytes (pic).  */
-;;	 Else we have to use a long-call;
-      (if_then_else (lt (plus (symbol_ref "total_code_bytes") (pc))
-			(const_int 240000))
-		    (const_int 8)
-		    (if_then_else (eq (symbol_ref "flag_pic")
-				      (const_int 0))
-				  (const_int 68)
-				  (const_int 84))))])
+   (set (attr "length") (symbol_ref "attr_length_call (insn, 0)"))])
 
 (define_insn "call_internal_reg_64bit"
   [(call (mem:SI (match_operand:DI 0 "register_operand" "r"))
@@ -6086,15 +5972,16 @@
   "*
 {
   /* ??? Needs more work.  Length computation, split into multiple insns,
-     do not use %r22 directly, expose delay slot.  */
-  return \"ldd 16(%0),%%r2\;ldd 24(%0),%%r27\;bve,l (%%r2),%%r2\;nop\";
+     expose delay slot.  */
+  return \"ldd 16(%0),%%r2\;bve,l (%%r2),%%r2\;ldd 24(%0),%%r27\";
 }"
   [(set_attr "type" "dyncall")
-   (set (attr "length") (const_int 16))])
+   (set (attr "length") (const_int 12))])
 
 (define_insn "call_internal_reg"
   [(call (mem:SI (reg:SI 22))
 	 (match_operand 0 "" "i"))
+   (clobber (reg:SI 1))
    (clobber (reg:SI 2))
    (use (const_int 1))]
   ""
@@ -6190,7 +6077,7 @@
     op = XEXP (operands[1], 0);
 
   if (TARGET_64BIT)
-    emit_move_insn (arg_pointer_rtx,
+    emit_move_insn (arg_pointer_incoming_rtx,
 		    gen_rtx_PLUS (word_mode, virtual_outgoing_args_rtx,
 				  GEN_INT (64)));
 
@@ -6218,11 +6105,13 @@
       call_insn = emit_call_insn (gen_call_value_internal_reg (operands[0],
 							       operands[2]));
     }
+
+  if (TARGET_64BIT)
+    use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_incoming_rtx);
+
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
-      if (TARGET_64BIT)
-	use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_rtx);
 
       /* After each call we must restore the PIC register, even if it
 	 doesn't appear to be used.  */
@@ -6235,6 +6124,7 @@
   [(set (match_operand 0 "" "=rf")
 	(call (mem:SI (match_operand 1 "call_operand_address" ""))
 	      (match_operand 2 "" "i")))
+   (clobber (reg:SI 1))
    (clobber (reg:SI 2))
    (use (const_int 0))]
   ;;- Don't use operand 1 for most machines.
@@ -6245,21 +6135,7 @@
   return output_call (insn, operands[1], 0);
 }"
   [(set_attr "type" "call")
-   (set (attr "length")
-;;       If we're sure that we can either reach the target or that the
-;;	 linker can use a long-branch stub, then the length is at most
-;;	 8 bytes.
-;;
-;;	 For long-calls the length will be at most 68 bytes (non-pic)
-;;	 or 84 bytes (pic).  */
-;;	 Else we have to use a long-call;
-      (if_then_else (lt (plus (symbol_ref "total_code_bytes") (pc))
-			(const_int 240000))
-		    (const_int 8)
-		    (if_then_else (eq (symbol_ref "flag_pic")
-				      (const_int 0))
-				  (const_int 68)
-				  (const_int 84))))])
+   (set (attr "length") (symbol_ref "attr_length_call (insn, 0)"))])
 
 (define_insn "call_value_internal_reg_64bit"
   [(set (match_operand 0 "" "=rf")
@@ -6271,16 +6147,17 @@
   "*
 {
   /* ??? Needs more work.  Length computation, split into multiple insns,
-     do not use %r22 directly, expose delay slot.  */
-  return \"ldd 16(%1),%%r2\;ldd 24(%1),%%r27\;bve,l (%%r2),%%r2\;nop\";
+     expose delay slot.  */
+  return \"ldd 16(%1),%%r2\;bve,l (%%r2),%%r2\;ldd 24(%1),%%r27\";
 }"
   [(set_attr "type" "dyncall")
-   (set (attr "length") (const_int 16))])
+   (set (attr "length") (const_int 12))])
 
 (define_insn "call_value_internal_reg"
   [(set (match_operand 0 "" "=rf")
 	(call (mem:SI (reg:SI 22))
 	      (match_operand 1 "" "i")))
+   (clobber (reg:SI 1))
    (clobber (reg:SI 2))
    (use (const_int 1))]
   ""
@@ -6389,10 +6266,9 @@
 }")
 
 (define_expand "sibcall"
-  [(parallel [(call (match_operand:SI 0 "" "")
-		    (match_operand 1 "" ""))
-	      (clobber (reg:SI 0))])]
-  "! TARGET_PORTABLE_RUNTIME"
+  [(call (match_operand:SI 0 "" "")
+	 (match_operand 1 "" ""))]
+  "!TARGET_PORTABLE_RUNTIME"
   "
 {
   rtx op;
@@ -6400,8 +6276,19 @@
 
   op = XEXP (operands[0], 0);
 
-  /* We do not allow indirect sibling calls.  */
-  call_insn = emit_call_insn (gen_sibcall_internal_symref (op, operands[1]));
+  if (TARGET_64BIT)
+    emit_move_insn (arg_pointer_incoming_rtx, arg_pointer_rtx);
+
+  /* Indirect sibling calls are not allowed.  */
+  if (TARGET_64BIT)
+    call_insn = gen_sibcall_internal_symref_64bit (op, operands[1]);
+  else
+    call_insn = gen_sibcall_internal_symref (op, operands[1]);
+
+  call_insn = emit_call_insn (call_insn);
+
+  if (TARGET_64BIT)
+    use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_incoming_rtx);
 
   if (flag_pic)
     {
@@ -6417,38 +6304,39 @@
 (define_insn "sibcall_internal_symref"
   [(call (mem:SI (match_operand 0 "call_operand_address" ""))
 	 (match_operand 1 "" "i"))
-   (clobber (reg:SI 0))
+   (clobber (reg:SI 1))
    (use (reg:SI 2))
    (use (const_int 0))]
-  "! TARGET_PORTABLE_RUNTIME"
+  "!TARGET_PORTABLE_RUNTIME && !TARGET_64BIT"
   "*
 {
   output_arg_descriptor (insn);
   return output_call (insn, operands[0], 1);
 }"
   [(set_attr "type" "call")
-   (set (attr "length")
-;;       If we're sure that we can either reach the target or that the
-;;	 linker can use a long-branch stub, then the length is at most
-;;	 8 bytes.
-;;
-;;	 For long-calls the length will be at most 68 bytes (non-pic)
-;;	 or 84 bytes (pic).  */
-;;	 Else we have to use a long-call;
-      (if_then_else (lt (plus (symbol_ref "total_code_bytes") (pc))
-			(const_int 240000))
-		    (const_int 8)
-		    (if_then_else (eq (symbol_ref "flag_pic")
-				      (const_int 0))
-				  (const_int 68)
-				  (const_int 84))))])
+   (set (attr "length") (symbol_ref "attr_length_call (insn, 1)"))])
+
+(define_insn "sibcall_internal_symref_64bit"
+  [(call (mem:SI (match_operand 0 "call_operand_address" ""))
+	 (match_operand 1 "" "i"))
+   (clobber (reg:SI 1))
+   (clobber (reg:SI 27))
+   (use (reg:SI 2))
+   (use (const_int 0))]
+  "TARGET_64BIT"
+  "*
+{
+  output_arg_descriptor (insn);
+  return output_call (insn, operands[0], 1);
+}"
+  [(set_attr "type" "call")
+   (set (attr "length") (symbol_ref "attr_length_call (insn, 1)"))])
 
 (define_expand "sibcall_value"
-  [(parallel [(set (match_operand 0 "" "")
+  [(set (match_operand 0 "" "")
 		   (call (match_operand:SI 1 "" "")
-			 (match_operand 2 "" "")))
-	      (clobber (reg:SI 0))])]
-  "! TARGET_PORTABLE_RUNTIME"
+			 (match_operand 2 "" "")))]
+  "!TARGET_PORTABLE_RUNTIME"
   "
 {
   rtx op;
@@ -6456,10 +6344,22 @@
 
   op = XEXP (operands[1], 0);
 
-  /* We do not allow indirect sibling calls.  */
-  call_insn = emit_call_insn (gen_sibcall_value_internal_symref (operands[0],
-								 op,
-								 operands[2]));
+  if (TARGET_64BIT)
+    emit_move_insn (arg_pointer_incoming_rtx, arg_pointer_rtx);
+
+  /* Indirect sibling calls are not allowed.  */
+  if (TARGET_64BIT)
+    call_insn
+      = gen_sibcall_value_internal_symref_64bit (operands[0], op, operands[2]);
+  else
+    call_insn
+      = gen_sibcall_value_internal_symref (operands[0], op, operands[2]);
+
+  call_insn = emit_call_insn (call_insn);
+
+  if (TARGET_64BIT)
+    use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), arg_pointer_incoming_rtx);
+
   if (flag_pic)
     {
       use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), pic_offset_table_rtx);
@@ -6475,32 +6375,34 @@
   [(set (match_operand 0 "" "=rf")
 	(call (mem:SI (match_operand 1 "call_operand_address" ""))
 	      (match_operand 2 "" "i")))
-   (clobber (reg:SI 0))
+   (clobber (reg:SI 1))
    (use (reg:SI 2))
    (use (const_int 0))]
-  ;;- Don't use operand 1 for most machines.
-  "! TARGET_PORTABLE_RUNTIME"
+  "!TARGET_PORTABLE_RUNTIME && !TARGET_64BIT"
   "*
 {
   output_arg_descriptor (insn);
   return output_call (insn, operands[1], 1);
 }"
   [(set_attr "type" "call")
-   (set (attr "length")
-;;       If we're sure that we can either reach the target or that the
-;;	 linker can use a long-branch stub, then the length is at most
-;;	 8 bytes.
-;;
-;;	 For long-calls the length will be at most 68 bytes (non-pic)
-;;	 or 84 bytes (pic).  */
-;;	 Else we have to use a long-call;
-      (if_then_else (lt (plus (symbol_ref "total_code_bytes") (pc))
-			(const_int 240000))
-		    (const_int 8)
-		    (if_then_else (eq (symbol_ref "flag_pic")
-				      (const_int 0))
-				  (const_int 68)
-				  (const_int 84))))])
+   (set (attr "length") (symbol_ref "attr_length_call (insn, 1)"))])
+
+(define_insn "sibcall_value_internal_symref_64bit"
+  [(set (match_operand 0 "" "=rf")
+	(call (mem:SI (match_operand 1 "call_operand_address" ""))
+	      (match_operand 2 "" "i")))
+   (clobber (reg:SI 1))
+   (clobber (reg:SI 27))
+   (use (reg:SI 2))
+   (use (const_int 0))]
+  "TARGET_64BIT"
+  "*
+{
+  output_arg_descriptor (insn);
+  return output_call (insn, operands[1], 1);
+}"
+  [(set_attr "type" "call")
+   (set (attr "length") (symbol_ref "attr_length_call (insn, 1)"))])
 
 (define_insn "nop"
   [(const_int 0)]
@@ -7392,6 +7294,12 @@
   "!TARGET_64BIT"
   "*
 {
+  int length = get_attr_length (insn);
+  rtx xoperands[2];
+
+  xoperands[0] = GEN_INT (length - 8);
+  xoperands[1] = GEN_INT (length - 16);
+
   /* Must import the magic millicode routine.  */
   output_asm_insn (\".IMPORT $$sh_func_adrs,MILLICODE\", NULL);
 
@@ -7400,60 +7308,24 @@
      First, copy our input parameter into %r29 just in case we don't
      need to call $$sh_func_adrs.  */
   output_asm_insn (\"copy %%r26,%%r29\", NULL);
+  output_asm_insn (\"{extru|extrw,u} %%r26,31,2,%%r31\", NULL);
 
   /* Next, examine the low two bits in %r26, if they aren't 0x2, then
      we use %r26 unchanged.  */
-  if (get_attr_length (insn) == 32)
-    output_asm_insn (\"{extru|extrw,u} %%r26,31,2,%%r31\;{comib|cmpib},<>,n 2,%%r31,.+24\", NULL);
-  else if (get_attr_length (insn) == 40)
-    output_asm_insn (\"{extru|extrw,u} %%r26,31,2,%%r31\;{comib|cmpib},<>,n 2,%%r31,.+32\", NULL);
-  else if (get_attr_length (insn) == 44)
-    output_asm_insn (\"{extru|extrw,u} %%r26,31,2,%%r31\;{comib|cmpib},<>,n 2,%%r31,.+36\", NULL);
-  else
-    output_asm_insn (\"{extru|extrw,u} %%r26,31,2,%%r31\;{comib|cmpib},<>,n 2,%%r31,.+20\", NULL);
+  output_asm_insn (\"{comib|cmpib},<>,n 2,%%r31,.+%0\", xoperands);
+  output_asm_insn (\"ldi 4096,%%r31\", NULL);
 
   /* Next, compare %r26 with 4096, if %r26 is less than or equal to
-     4096, then we use %r26 unchanged.  */
-  if (get_attr_length (insn) == 32)
-    output_asm_insn (\"ldi 4096,%%r31\;{comb|cmpb},<<,n %%r26,%%r31,.+16\",
-		     NULL);
-  else if (get_attr_length (insn) == 40)
-    output_asm_insn (\"ldi 4096,%%r31\;{comb|cmpb},<<,n %%r26,%%r31,.+24\",
-		     NULL);
-  else if (get_attr_length (insn) == 44)
-    output_asm_insn (\"ldi 4096,%%r31\;{comb|cmpb},<<,n %%r26,%%r31,.+28\",
-		     NULL);
-  else
-    output_asm_insn (\"ldi 4096,%%r31\;{comb|cmpb},<<,n %%r26,%%r31,.+12\",
-		     NULL);
+     4096, then again we use %r26 unchanged.  */
+  output_asm_insn (\"{comb|cmpb},<<,n %%r26,%%r31,.+%1\", xoperands);
 
-  /* Else call $$sh_func_adrs to extract the function's real add24.  */
+  /* Finally, call $$sh_func_adrs to extract the function's real add24.  */
   return output_millicode_call (insn,
 				gen_rtx_SYMBOL_REF (SImode,
-					 \"$$sh_func_adrs\"));
+						    \"$$sh_func_adrs\"));
 }"
   [(set_attr "type" "multi")
-   (set (attr "length")
-     (cond [
-;; Target (or stub) within reach
-            (and (lt (plus (symbol_ref "total_code_bytes") (pc))
-                     (const_int 240000))
-                 (eq (symbol_ref "TARGET_PORTABLE_RUNTIME")
-                     (const_int 0)))
-            (const_int 28)
-
-;; Out of reach PIC
-	    (ne (symbol_ref "flag_pic")
-		(const_int 0))
-	    (const_int 44)
-
-;; Out of reach PORTABLE_RUNTIME
-	    (ne (symbol_ref "TARGET_PORTABLE_RUNTIME")
-		(const_int 0))
-	    (const_int 40)]
-
-;; Out of reach, can use ble
-          (const_int 32)))])
+   (set (attr "length") (symbol_ref "attr_length_millicode_call (insn, 20)"))])
 
 ;; On the PA, the PIC register is call clobbered, so it must
 ;; be saved & restored around calls by the caller.  If the call
Index: config/pa/pa32-regs.h
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/pa32-regs.h,v
retrieving revision 1.11
diff -u -3 -p -r1.11 pa32-regs.h
--- config/pa/pa32-regs.h	3 Sep 2002 18:01:23 -0000	1.11
+++ config/pa/pa32-regs.h	22 Oct 2002 14:04:22 -0000
@@ -95,6 +95,8 @@
   1, 1, 1, 1, 1, 1, 1, 1, \
   1}
 
+#define CALL_REALLY_USED_REGISTERS CALL_USED_REGISTERS
+
 #define CONDITIONAL_REGISTER_USAGE \
 {						\
   int i;					\
Index: config/pa/pa64-linux.h
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/pa64-linux.h,v
retrieving revision 1.3
diff -u -3 -p -r1.3 pa64-linux.h
--- config/pa/pa64-linux.h	22 Sep 2002 19:23:19 -0000	1.3
+++ config/pa/pa64-linux.h	22 Oct 2002 14:04:22 -0000
@@ -18,55 +18,3 @@ along with GNU CC; see the file COPYING.
 the Free Software Foundation, 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
-#if 0 /* needs some work :-( */
-/* If defined, this macro specifies a table of register pairs used to
-   eliminate unneeded registers that point into the stack frame.  */
-
-#define ELIMINABLE_REGS							\
-{									\
-  {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM},				\
-  {ARG_POINTER_REGNUM,	 STACK_POINTER_REGNUM},				\
-  {ARG_POINTER_REGNUM,	 FRAME_POINTER_REGNUM},				\
-}
-
-/* A C expression that returns nonzero if the compiler is allowed to try to
-   replace register number FROM with register number TO.  The frame pointer
-   is automatically handled.  */
-
-#define CAN_ELIMINATE(FROM, TO) 1
-
-/* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'.  It
-   specifies the initial difference between the specified pair of
-   registers.  This macro must be defined if `ELIMINABLE_REGS' is
-   defined.  */
-#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
-  do								\
-    {								\
-      int fsize;						\
-								\
-      fsize = compute_frame_size (get_frame_size (), 0);	\
-      if ((TO) == FRAME_POINTER_REGNUM				\
-	  && (FROM) == ARG_POINTER_REGNUM)			\
-	{							\
-	  (OFFSET) = -16;					\
-	  break;						\
-	}							\
-								\
-      if ((TO) != STACK_POINTER_REGNUM)				\
-	abort ();						\
-								\
-      switch (FROM)						\
-	{							\
-	case FRAME_POINTER_REGNUM:				\
-	  (OFFSET) = - fsize;					\
-	  break;						\
-								\
-	case ARG_POINTER_REGNUM:				\
-	  (OFFSET) = - fsize - 16;				\
-	  break;						\
-								\
-	default:						\
-	  abort ();						\
-	}							\
-    } while (0)
-#endif
Index: config/pa/pa64-regs.h
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/pa64-regs.h,v
retrieving revision 1.10
diff -u -3 -p -r1.10 pa64-regs.h
--- config/pa/pa64-regs.h	4 Sep 2002 18:09:32 -0000	1.10
+++ config/pa/pa64-regs.h	22 Oct 2002 14:04:22 -0000
@@ -48,29 +48,27 @@ Boston, MA 02111-1307, USA.  */
    Reg 0	= 0 (hardware). However, 0 is used for condition code,
                   so is not fixed.
    Reg 1	= ADDIL target/Temporary (hardware).
-   Reg 2	= Return Pointer
+   Reg 2	= Return Pointer, Millicode Return Pointer
    Reg 3	= Frame Pointer
-   Reg 4	= Frame Pointer (>8k varying frame with HP compilers only)
+   Reg 4	= Internal Argument Pointer
    Reg 4-18	= Preserved Registers
-   Reg 19	= Linkage Table Register in HPUX 8.0 shared library scheme.
-   Reg 20-22	= Temporary Registers
-   Reg 23-26	= Temporary/Parameter Registers
+   Reg 19-26	= Temporary/Parameter Registers
    Reg 27	= Global Data Pointer (hp)
-   Reg 28	= Temporary/Return Value register
-   Reg 29	= Temporary/Static Chain/Return Value register #2
+   Reg 28	= Temporary/Return Value register #1
+   Reg 29	= Temporary/Arg Pointer register/Return Value register #2
    Reg 30	= stack pointer
-   Reg 31	= Temporary/Millicode Return Pointer (hp)
+   Reg 31	= Temporary/Static Chain/Millicode Return Pointer register (hp)
 
    Freg 0-3	= Status Registers	-- Not known to the compiler.
    Freg 4-7	= Arguments/Return Value
    Freg 8-11	= Temporary Registers
    Freg 12-21	= Preserved Registers
-   Freg 22-31 = Temporary Registers
+   Freg 22-31	= Temporary Registers
 
 */
 
 #define FIXED_REGISTERS  \
- {0, 0, 0, 0, 0, 0, 0, 0, \
+ {0, 0, 0, 0, 1, 0, 0, 0, \
   0, 0, 0, 0, 0, 0, 0, 0, \
   0, 0, 0, 0, 0, 0, 0, 0, \
   0, 0, 0, 1, 0, 0, 1, 0, \
@@ -89,6 +87,21 @@ Boston, MA 02111-1307, USA.  */
    and the register where structure-value addresses are passed.
    Aside from that, you can include as many other registers as you like.  */
 #define CALL_USED_REGISTERS  \
+ {1, 1, 1, 0, 1, 0, 0, 0, \
+  0, 0, 0, 0, 0, 0, 0, 0, \
+  0, 0, 0, 1, 1, 1, 1, 1, \
+  1, 1, 1, 1, 1, 1, 1, 1, \
+  /* fp registers */	  \
+  1, 1, 1, 1, 1, 1, 1, 1, \
+  0, 0, 0, 0, 0, 0, 0, 0, \
+  0, 0, 1, 1, 1, 1, 1, 1, \
+  1, 1, 1, 1, 		  \
+  /* shift register */    \
+  1}
+
+/* This differs from CALL_USED_REGISTERS only in that GR (4)
+   is not really call used.  */
+#define CALL_REALLY_USED_REGISTERS  \
  {1, 1, 1, 0, 0, 0, 0, 0, \
   0, 0, 0, 0, 0, 0, 0, 0, \
   0, 0, 0, 1, 1, 1, 1, 1, \
Index: config/pa/som.h
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/som.h,v
retrieving revision 1.38
diff -u -3 -p -r1.38 som.h
--- config/pa/som.h	29 Aug 2002 21:16:35 -0000	1.38
+++ config/pa/som.h	22 Oct 2002 14:04:23 -0000
@@ -371,3 +371,7 @@ do {						\
    on the location of the GCC tool directory.  The downside is GCC
    cannot be moved after installation using a symlink.  */
 #define ALWAYS_STRIP_DOTDOT 1
+
+/* Aggregates with a single float or double field should be passed and
+   returned in the general registers.  */
+#define MEMBER_TYPE_FORCES_BLK(FIELD, MODE) (MODE==SFmode || MODE==DFmode)
Index: config/pa/t-pa64
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/t-pa64,v
retrieving revision 1.6
diff -u -3 -p -r1.6 t-pa64
--- config/pa/t-pa64	30 Apr 2002 19:47:38 -0000	1.6
+++ config/pa/t-pa64	22 Oct 2002 14:04:23 -0000
@@ -1,4 +1,4 @@
-TARGET_LIBGCC2_CFLAGS = -fPIC -Dpa64=1 -DELF=1
+TARGET_LIBGCC2_CFLAGS = -fPIC -Dpa64=1 -DELF=1 -mlong-calls
 
 LIB2FUNCS_EXTRA=quadlib.c
 


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In reference to a message from John Marvin, dated Oct 22:
> OK, I should have checked the archives first. It looks like this issue
> has already come up. In that case we fixed the app. But I'm not comfortable
> with the fact that we are different from every other architecture here.

John, I was refering to the suggestion Carlos made that we can "fix up"
the return value in the syscall return path in glibc. Looks like there
is already precedence for this sort of thing, and that way we retain
binary compatibility with both hppa-linux and potentially with hpux.

> P.S. I know most of you don't care, but the broken app in this case is
> telnetd. It drops connections if you blast too much to stdout.

heh, now that you mention it, this explains some things...:-)

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] Re: EWOULDBLOCK vs. EAGAIN
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> Yes, to be completely portable across other Unix flavors, you should
> check for both EAGAIN and EWOULDBLOCK. But it would appear that
> Gnu C library documentation says they should be the same, and they
> ARE the same on all other Linux architectures. So, in my opinion,
> we are broken, not the apps.

I just looked at expect.  It uses 

#ifdef EAGAIN
        case EAGAIN: return "resource temporarily unavailable";
#endif
...
#if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
        case EDEADLK: return "resource deadlock avoided";
#endif
#if defined(EDEADLOCK) && (!defined(EDEADLK) || (EDEADLOCK != EDEADLK))
	case EDEADLOCK: return "resource deadlock avoided";
#endif
...
#if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
        case EWOULDBLOCK: return "operation would block";
#endif

This seems portable to me.

I agree that the definition of EWOULDBLOCK should be the same as on
other Linux architectures.  However, I think that apps should work
irrespective of whether they are the same or not.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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John Marvin wrote:
...
> Upon return from
> handle_interruption we turn on the I bit, but then later we disable I and
> Q before calling rfir in the return path from handle_interruption, so this
> is not an issue.

Ah ok - my bad. I should have checked.
When doing any bottom half stuff, I think it should be ok for
I-bit to be enabled.

> Note that we are currently turning the I bit on when we return from
> handle_interruption, so this, so removing the local_irq_enable() is not
> going to actually change any behaviour.

hmmm. It changes the timing a bit but basically you are right.
I'm worried about the nesting of traps/interrupts in this case.
My gut feeling says we never want to enable I-bit for handling faults/traps.
Maybe to enable console output in a kernel_die() code path.

The obvious deadlock sequence to me is:
	spin_lock_irqsave() -> trap -> interrupt -> spin_lock()
or
	spin_lock_irqsave() -> trap -> interrupt/bottom half -> spin_lock()

I use "interrupt" to mean "External Interrupts" as defined by parisc arch.

> I just don't think it is necessary, and the enablement upon return may
> be wrong also.

yeah. I suspect it is.

...
> Now, I've also spent some time looking at the I bit enablement at the head
> of intr_return in entry.S.  I don't think that is correct either.  But
> just removing it is not the correct answer.

Please let me know if (a) you are chasing this down or (b) you
already found the correct answer. I'm very tempted to just try
removing it and see what breaks. I may not be able to debug the
resulting mess though...

...
> Note, I don't think any of this is going to explain the problem specific
> to the rp2470.

When scsi_lock_irqsave() blocks interrupts, we can't take any
external interrupt.  It results in a deadlock.

I'm suspecting that's also what was causing the deadlock on xtime_lock.
I added code to set EIEM to 0 in do_cpu_irq_mask() to avoid that deadlock.
I can't do the same for sym2 driver.

thanks,
grant


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Subject: Re: [parisc-linux] jfs-1.0.23 as well xfs-cvs break fb console on k-2.4.19-pa22
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Hi Dave,

>
>> On Monday 21 October 2002 11:46 am, John David Anglin wrote:
>> > > it sounds like a gcc bug:
>> >
>> > What does a gcc bug sound like ;-)
>> >
>> > Dave
>> It is an indirect call (Telepathic) -
>> You have to listen for its echo from the programmer's mouth.
>
>Ah, something I have been working on ...
>
Is it in already in gcc-3.2 or gcc-3.3 (snapshot which I would I have to
toolchain?)?

Many thanks for help and attention,
    Joel



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Hi Stephan,

As you do earlier, I build a xfs-kernel diff versus 2.4.19 vanilla kernel,
apply it against 2.4.19-pa22 (with very small problem) and obtain a bootable
(and operational) kernel.

Now I rebuild debian package of xfsprogs-2.3.5 (cvs form) and obtain tools
binaries (without warning or error) but even mkfs -t xfs (mkfs.xfs) failed
with this concise message: "mkfs.xfs: cannot reserve space [28 - No space
left on device]".
(I try to xfs_check which failed also with a lot of error messages).

As you already do portage effort may be have you some idea of some starting
point of investigation?

Thanks in advance for all,
    Joel




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Subject: [parisc-linux] insmod modules -> kernel panic:
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	Hi
I'm preparing a patche for the dump driver.
So I'm testing it. But when using insmod dump_rle
(it is a module to use rle compression while dumping)
It panics immediatly, it don't even start the initialisation.

By using insmod -m I have:

Using /lib/modules/2.4.19-pa22/kernel/drivers/dump/dump_rle.o
r_info 0x29 not handled
r_info 0x29 not handled
r_info 0x29 not handled
r_info 0x29 not handled
Sections:       Size      Address   Align
.this           000000b8  000d3000  2**3
.text           00000000  000d30b8  2**0
.text.dump_compress_rle 000002f8  000d30b8  2**3
.text.dump_compress_rle_init 00000038  000d33b0  2**3
.text.dump_compress_rle_cleanup 00000028  000d33e8  2**3
.stub           00000020  000d3410  2**4
.PARISC.unwind  00000030  000d3430  2**2
.kstrtab        000000b4  000d3460  2**0
.kmodtab        00000018  000d3518  2**3
__ksymtab       00000040  000d3530  2**3
__archdata      00000028  000d3570  2**4
.got            00000018  000d3598  2**3
.data           00000020  000d35b0  2**3
.opd            00000060  000d35d0  2**4
.bss            00000000  000d3630  2**0

Symbols:
000d3000 d __this_module
000d3000 D __insmod_dump_rle_O/lib/modules/2.4.19-pa22/kernel/drivers/dump/dump_rle.o_M3DB56146_V132115
000d30b8 t .text.dump_compress_rle
000d30b8 t dump_compress_rle
000d30b8 t .text
000d33b0 t .text.dump_compress_rle_init
000d33b0 T dump_compress_rle_init
000d33b0 t init_module
000d33e8 t cleanup_module
000d33e8 T dump_compress_rle_cleanup
000d33e8 t .text.dump_compress_rle_cleanup
000d3430 r .PARISC.unwind -> PANIC !!!!

Any idea, any suggestion to have more debug ?
Where this .PARISC.unwind comes from ??? It is not in my code.

	thanks.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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Subject: Re: [parisc-linux] insmod modules -> kernel panic:
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	hi
It seems to be a weird problem. I've recompile everything
(make clean && make dep && make vmlinux && make modules && make modules_install)
And:
-A-class: 64bits compilation, it panic, but not at the same place than before:
# insmod -m dump_rle
.
.
.
Symbols:
000d3000 D __insmod_dump_rle_O/lib/modules/2.4.19-pa22/kernel/drivers/dump/dump_rle.o_M3DB6A52E_V132115
000d3000 d __this_module
000d30b8 t .text.dump_compress_rle
000d30b8 t dump_compress_rle
000d30b8 t .text
000d33b0 t .text.dump_compress_rle_init
000d33b0 T dump_compress_rle_init
000d33b0 t init_module
000d3400 t cleanup_module
000d3400 T dump_compress_rle_cleanup
000d3400 t .text.dump_compress_rle_cleanup
000d3460 r .PARISC.unwind
000d3490 r .rodata
000d3490 r .LC5
000d3490 R __insmod_dump_rle_S.rodata_L20
000d3630 D __insmod_dump_rle_S.data_L32
000d3630 d dump_rle_compression
000d3630 d .data
000d36b0 d .bss -> it panic here

-712: works fine !!!!!

I'll try to install the latest 64 bit compiler....


-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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Subject: Re: [parisc-linux] jfs-1.0.23 as well xfs-cvs break fb console on k-2.4.19-pa22
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> >Ah, something I have been working on ...
> >
> Is it in already in gcc-3.2 or gcc-3.3 (snapshot which I would I have to
> toolchain?)?

Soon to be in 3.3.  I found a couple of more things yesterday in testing.
It needs a lot of testing (hppa1, hppa2, hppa64, hpux, linux, pic, short
and long calls).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] insmod modules -> kernel panic:
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In reference to a message from Bruno Vidal, dated Oct 23:
> 	hi
> It seems to be a weird problem. I've recompile everything
> (make clean && make dep && make vmlinux && make modules && make modules_install)
> And:
> -A-class: 64bits compilation, it panic, but not at the same place than before:

Hi Bruno,

We seem to be having some general problems with insmod causing random
crashes. I would suggest that you stick with building things into the
kernel instead of modules for a little while until we figure out the
insmod problem.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Thanks.
I've already noted that when building in the kernel
it was running fine. About this insmod panic it is
a bit strange, because, on the A class, it is completly
crashed after that. I have to power off/on.

	bye.

-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com
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From: Jochen Friedrich <jochen@scram.de>
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Hi,

> i recognized that mmap operations seem unreliable on HP720 platform. The
> following test program (taken from cyrus imap configure) demonstrates the
> problem:
> [...]
>
> This only seems to happen on 720 (i couldn't replicate the bug on a 715
> with the same kernel booted up).

While debugging cyrus21-imapd, i experienced pretty fishy behaviour
of the skiplist database backend. It turned out that the 715 is affected
by the mmap problem, as well.

Here is a new test program which performs random writes to a file and
verifies the mmapped memory afterwards which demonstrates the problem:

Cheers,
--jochen

-------------------------------------8<-------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>

int main()
{
  char *base;
  int fd;
  char buf[2000];
  int i, j;
  char c;

  for (i=0; i<2000; i++)
    {
      c = (char) ((float) rand() / (float) (RAND_MAX) * 26) + 'a';
      buf[i] = c;
    }

  fd = open("mmap.test", O_CREAT|O_TRUNC|O_RDWR, 0664);
  write(fd, buf, 2000);

  base = (char *)mmap((caddr_t)0, 2000, PROT_READ, MAP_SHARED
#ifdef MAP_FILE
| MAP_FILE
#endif
#ifdef MAP_VARIABLE
| MAP_VARIABLE
#endif
  , fd, 0L);

  for (i=0; i<2000; i++)
    {
      j = (int) ((float) rand() / (float) (RAND_MAX) * 2000);
      c = (char) ((float) rand() / (float) (RAND_MAX) * 26) + 'a';
      lseek(fd, j, SEEK_SET);
      write(fd, &c, 1);
      if (*(base+j) != c)
        printf("Error: mmap inconsistent at %d\n", j);
    }
  close(fd);
}



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> While debugging cyrus21-imapd, i experienced pretty fishy behaviour
> of the skiplist database backend. It turned out that the 715 is affected
> by the mmap problem, as well.

as are c3k, a500, etc....

no one has managed to really track this down yet. i can insert a dcache
flush into the kernel to 'fix' this, but it is not the right place to be
doing the flush. 

my understanding of what's happening is that the open(2) and mmap()
creates two different "views" of the underlying page. when a write()
flushes the contents, only the open() view is flushd but not the mmap
view.

unfortunately i don't know nearly enough about vm to be able to track
this down and fix it properly :(

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>-- Original Message --
>Subject: Re: [parisc-linux] jfs-1.0.23 as well xfs-cvs break fb console
on
>k-2.4.19-pa22
>To: jsoe0708@tiscali.be
>Date: Wed, 23 Oct 2002 11:01:54 -0400 (EDT)
>From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>Cc: mszick@goquest.com, grundler@dsl2.external.hp.com, joel.soete@freebel.net,
>   parisc-linux@lists.parisc-linux.org
>
>
>> >Ah, something I have been working on ...
>> >
>> Is it in already in gcc-3.2 or gcc-3.3 (snapshot which I would I have
to
>> toolchain?)?
>
>Soon to be in 3.3.  I found a couple of more things yesterday in testing.
>It needs a lot of testing (hppa1, hppa2, hppa64, hpux, linux, pic, short
>and long calls).
>
Great, (I will wait).

Joel



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On Wed, Oct 23, 2002 at 10:46:11AM -0600, Thibaut Varene wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.5
> Changes by:	varenet	02/10/23 10:46:11
> 
> Modified files:
> 	include/asm-parisc: param.h 
> 
> Log message:
> Switched to HZ == 1000 for CONFIG_PA20.
> Patch submitted by Laurent Canet.

Don't know if this was simply a #define change, but if so...
Robert Love has been arguing lately that you can't just do that as
various userspace stuff is compiled with a knowledge of the kernel HZ
value for your specific arch and uses that in interpreting various
entries in /proc.  He had a patch that kept the userspace view
consistent.  That was 2.4 though; maybe 2.5 is better in this respect.

Richard



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At Tue, 22 Oct 2002 08:54:35 -0700,
Randolph Chung wrote:
> In reference to a message from John Marvin, dated Oct 22:
> > OK, I should have checked the archives first. It looks like this issue
> > has already come up. In that case we fixed the app. But I'm not comfortable
> > with the fact that we are different from every other architecture here.
> 
> John, I was refering to the suggestion Carlos made that we can "fix up"
> the return value in the syscall return path in glibc. Looks like there
> is already precedence for this sort of thing, and that way we retain
> binary compatibility with both hppa-linux and potentially with hpux.

I wonder it's not important changing EWOULDBLOCK -> EAGAIN to keep
hpux (or old sysv) compatibility...  Now SusV3 says EWOULDBLOCK may be
same as EAGAIN, a conforming implementation may assign the same
values. Are there any reasons to retain this?

I don't know whether hpux binary can run on hppa-linux or not,
but if EWOULDBLOCK is not same as EAGAIN, serious problem is occured?
I think keeping compatibity to other linux is more important than
hpux binaries... (Well, I'm not hppa-linux user, so please tell me
these status/circumstance).

> > P.S. I know most of you don't care, but the broken app in this case is
> > telnetd. It drops connections if you blast too much to stdout.
> 
> heh, now that you mention it, this explains some things...:-)

So, telnetd should be fixed...?

Regards,
-- gotom


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Le jeudi, 24 oct 2002, =E0 09:18 Europe/Paris, Richard Hirst a =E9crit :

> On Wed, Oct 23, 2002 at 10:46:11AM -0600, Thibaut Varene wrote:
>> CVSROOT:	/var/cvs
>> Module name:	linux-2.5
>> Changes by:	varenet	02/10/23 10:46:11
>>
>> Modified files:
>> 	include/asm-parisc: param.h
>>
>> Log message:
>> Switched to HZ =3D=3D 1000 for CONFIG_PA20.
>> Patch submitted by Laurent Canet.
>
> Don't know if this was simply a #define change, but if so...
> Robert Love has been arguing lately that you can't just do that as
> various userspace stuff is compiled with a knowledge of the kernel HZ
> value for your specific arch and uses that in interpreting various
> entries in /proc.  He had a patch that kept the userspace view
> consistent.  That was 2.4 though; maybe 2.5 is better in this respect.

Hm, I'm not sure we really broke something, we added the lines marked=20
'->':

#ifdef __KERNEL__
-># ifdef CONFIG_PA20
->#  define HZ            1000            /* Faster machines */
-># else
#  define HZ            100             /* Internal kernel timer=20
frequency */
-># endif
# define USER_HZ        100             /* .. some user interfaces are=20=

in "ticks
" */
# define CLOCKS_PER_SEC (USER_HZ)       /* like times() */
#endif

#ifndef HZ
#define HZ 100
#endif

As you can see, these defines are protected by a #ifdef __KERNEL__,=20
otherwise HZ is 100 in all cases. Since userspace stuff isn't supposed=20=

to define __KERNEL__ at compile time, HZ from a userspace point of view=20=

hasn't changed.

If you look at other archs (like i386, ppc64) they also have different=20=

HZ vs USER_HZ and *__KERNEL__* HZ.

In 2.4, there wasn't such #ifdef protection, so such change could have=20=

broken things.
In 2.5, I think this is quite safe IMHO.

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=



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> >Soon to be in 3.3.  I found a couple of more things yesterday in testing.
> >It needs a lot of testing (hppa1, hppa2, hppa64, hpux, linux, pic, short
> >and long calls).
> >
> Great, (I will wait).

The "final" patch is here

<http://gcc.gnu.org/ml/gcc-patches/2002-10/msg01408.html>

and

the required patch to reload here

<http://gcc.gnu.org/ml/gcc-patches/2002-10/msg01409.html>.

These should apply cleanly to the current 3.3 cvs.

I think the main benefit under hppa-linux is the PA 2.0 fix.  If
you have applications where you need "-ffunction-sections" to build
or there are long call related problems (ie., you get assembler
errors about out of range branches), I would appreciate feedback
on how the new long call option works.  I have tested building gcc
with long calls and that works fine.

Currently, 3.3 is in a bug fix phase.  The only reported bug that
I have regarding long calls  or out of range branches was in proprietary
code.  So, if people know of others, let me know.

There needs to be some work done on the linker to handle long absolute
calls (non-pic code) and long pc-relative calls (pic code).  This will
shorten the long call sequences under hppa-linux, particularly for calls
within modules.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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* jsoe0708@tiscali.be <jsoe0708@tiscali.be> [021023 09:30]:
> Hi Stephan,
> 
> As you do earlier, I build a xfs-kernel diff versus 2.4.19 vanilla kernel,
> apply it against 2.4.19-pa22 (with very small problem) and obtain a bootable
> (and operational) kernel.
Yup.

> Now I rebuild debian package of xfsprogs-2.3.5 (cvs form) and obtain tools
> binaries (without warning or error) but even mkfs -t xfs (mkfs.xfs) failed
> with this concise message: "mkfs.xfs: cannot reserve space [28 - No space
> left on device]".
> (I try to xfs_check which failed also with a lot of error messages).
Yea thats a problem, still in the Linux/Parisc kernel. It gives garbage with
BLKGETSIZE64. Simply look in the xfslibs directory where BLGKETSIZE64 is used
and comment that out. Thats a disgusting hack but it leads to a set of working
xfsprogs.

If you want I can make a patch for you, but this will take some time, since I
have the source not right by hand now.

bye

Stefan

-- 
        http://www.dreamind.de/
Oroborus and Debian GNU/Linux Developer.


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> Yea thats a problem, still in the Linux/Parisc kernel. It gives garbage with
> BLKGETSIZE64. Simply look in the xfslibs directory where BLGKETSIZE64 is used
> and comment that out. Thats a disgusting hack but it leads to a set of working
> xfsprogs.

i thought i fixed this in the kernel recently (last month). If this is
still not working, please point out the kernel version you are using.

thanks
randolph


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Hi,

* Randolph Chung <randolph@tausq.org> [021024 20:15]:
> i thought i fixed this in the kernel recently (last month). If this is
> still not working, please point out the kernel version you are using.
Hm, maybe, it has been a while since I updated that machine.

2.4.19-pa9-xfs is running there.

bye

Stefan

-- 
        http://www.dreamind.de/
Oroborus and Debian GNU/Linux Developer.


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> Hm, maybe, it has been a while since I updated that machine.
> 
> 2.4.19-pa9-xfs is running there.

what machine was this on? is this a 32-bit or 64-bit kernel?

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi There,

I have a number of Seagate WD drives that I would like to put on my
735/125.  It doesn't seem to recognize them.  Is the Wide scsi chain
supported?


Thanks.
Richard

-- 
|       Richard Nairn          Specializing in Linux
|     Nairn Consulting         Web / Database Solutions
|        Calgary, AB           
| Richard@NairnConsulting.ca


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Richard Nairn writes...

> Hi There,
> 
> I have a number of Seagate WD drives that I would like to put on my
> 735/125.  It doesn't seem to recognize them.  Is the Wide scsi chain
> supported?

Well if you're plugging it in to a narrow single ended bus the drive should 
fall back. If you're trying to plug it in to a wide high voltage 
differential bus that's not going to work.

So which bus does your 735 have?

-- 
Matt Taggart
taggart@fc.hp.com




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> Richard Nairn writes...
> 
> > Hi There,
> > 
> > I have a number of Seagate WD drives that I would like to put on my
> > 735/125.  It doesn't seem to recognize them.  Is the Wide scsi chain
> > supported?
> 
> Well if you're plugging it in to a narrow single ended bus the drive should 
> fall back. If you're trying to plug it in to a wide high voltage 
> differential bus that's not going to work.
> 
> So which bus does your 735 have?

They have both SE and WD.  As far as I know, the controller for the WD
bus is still not supported.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Is there any approx time for the WD driver? I have about 60G I can put on
my machine if it works.. Will it work if It gets plugged in the SE Chain?




On Thu, Oct 24, 2002 at 06:25:12PM -0400, John David Anglin wrote:
> > Richard Nairn writes...
> > 
> > > Hi There,
> > > 
> > > I have a number of Seagate WD drives that I would like to put on my
> > > 735/125.  It doesn't seem to recognize them.  Is the Wide scsi chain
> > > supported?
> > 
> > Well if you're plugging it in to a narrow single ended bus the drive should 
> > fall back. If you're trying to plug it in to a wide high voltage 
> > differential bus that's not going to work.
> > 
> > So which bus does your 735 have?
> 
> They have both SE and WD.  As far as I know, the controller for the WD
> bus is still not supported.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)
---end quoted text---

-- 
|       Richard Nairn          Specializing in Linux
|     Nairn Consulting         Web / Database Solutions
|        Calgary, AB           
| Richard@NairnConsulting.ca


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Xref: news.gmane.org gmane.linux.ports.parisc:16580

> > Richard Nairn writes...
> > 
> > > Hi There,
> > > 
> > > I have a number of Seagate WD drives that I would like to put on my
> > > 735/125.  It doesn't seem to recognize them.  Is the Wide scsi chain
> > > supported?
> > 
> > Well if you're plugging it in to a narrow single ended bus the drive should 
> > fall back. If you're trying to plug it in to a wide high voltage 
> > differential bus that's not going to work.

That's not correct.  Seagate WD drives must be installed on the wide
high-voltage differential bus.  They will not work on a SE bus (even
a wide one).  You also need a WD bus terminator.  They are different
from wide SE terminators.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Is there any approx time for the WD driver? I have about 60G I can put on
> my machine if it works.. Will it work if It gets plugged in the SE Chain?

No.  It may cause damage.

There was a question about the WD driver not too long ago.  You could search
for the answer but I believe only hpux supports the WD interface at this
time.  You may be able to add a newer LVD to the SE chain and have it
work.  I'm not sure if it could be used as a boot device though.

I've been watching for this support for some time as I have a 735 with
a bunch of Seagate WD drives on it running under hpux.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi Randolph,

* Randolph Chung <randolph@tausq.org> [021024 21:00]:
> > Hm, maybe, it has been a while since I updated that machine.
> > 
> > 2.4.19-pa9-xfs is running there.
> 
> what machine was this on? is this a 32-bit or 64-bit kernel?

Its a HP Visualize C200 and its a 32bit kernel.

bye

Stefan

-- 
        http://www.dreamind.de/
Oroborus and Debian GNU/Linux Developer.


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"John David Anglin" wrote:
> That's not correct.  Seagate WD drives must be installed on the wide
> high-voltage differential bus.  They will not work on a SE bus (even
> a wide one).  You also need a WD bus terminator.  They are different
> from wide SE terminators.

Dave has it right.

HP did sell *narrow* HVD devices for workstations but it's rare
and IIRC only available as EISA add-on cards.

grant


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"John David Anglin" wrote:
> > Is there any approx time for the WD driver? I have about 60G I can put on
> > my machine if it works.. Will it work if It gets plugged in the SE Chain?
> 
> No.  It may cause damage.

Not true.
Mixing SE and HVD devices on a SCSI bus will result in the interface
chips "tri-stating". ie no one can talk on the bus. But nothing smokes
either - at least not for the HP product testing I was involved with
several years ago.

> There was a question about the WD driver not too long ago.  You could search
> for the answer but I believe only hpux supports the WD interface at this
> time.

And that's going to get dropped soon too.
Last product to support HVD is based on Sym53c876 chip.
The interface cards are supported on new IA64 machines
but I'm not sure one can purchase them or purchase HVD disks.

> You may be able to add a newer LVD to the SE chain and have it
> work.  I'm not sure if it could be used as a boot device though.

The LVD should work fine as a boot device in SE mode.
LVD devices talk SE like any other SE device (AFAIK).

grant


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Stephan,

>* jsoe0708@tiscali.be <jsoe0708@tiscali.be> [021023 09:30]:
>> Hi Stephan,
>> 
>> As you do earlier, I build a xfs-kernel diff versus 2.4.19 vanilla kernel,
>> apply it against 2.4.19-pa22 (with very small problem) and obtain a bootable
>> (and operational) kernel.
>Yup.
>
>> Now I rebuild debian package of xfsprogs-2.3.5 (cvs form) and obtain tools
>> binaries (without warning or error) but even mkfs -t xfs (mkfs.xfs) failed
>> with this concise message: "mkfs.xfs: cannot reserve space [28 - No space
>> left on device]".
>> (I try to xfs_check which failed also with a lot of error messages).
>Yea thats a problem, still in the Linux/Parisc kernel. It gives garbage
with
>BLKGETSIZE64. Simply look in the xfslibs directory where BLGKETSIZE64 is
>used
>and comment that out. Thats a disgusting hack but it leads to a set of working
>xfsprogs.
>
>If you want I can make a patch for you, but this will take some time, since
>I
>have the source not right by hand now.
Hmm I would have to be aware (as I try to implement put_user and get_user
for 64bits [ie long long] [unfortunately] without great success till now).

Evms also use BLKGETSIZE64 in a way that would be safely. The problem is
that hppa kernel just printk a bug message and do not return a error message
as ENOSYS or ENOTSUP? (duno yet how other platform manage this case)

Thanks for advise (will inform of progress)
    Joel



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>
>> Hm, maybe, it has been a while since I updated that machine.
>> 
>> 2.4.19-pa9-xfs is running there.
>
>what machine was this on? is this a 32-bit or 64-bit kernel?
>
For my part it is 2.4.19-pa22 [32bits] (on a b180l)

I do think that BLGKETSIZE64 (in put_user and get_user) is well supported
in 64bits kernel but the job still have to do on 32bits kernel (?)

Thanks for attention and help,
    Joel



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Hi Randolph,

It sure I found a bug in the two parts kernel and xfs.

A. The kernel hppa: put_user and get_user does just a printk for BUG messages
but don't return error code as ENOTSUP (or what else) (what I assume the
other platforms does when they do not yet support BLKGETSIZE64?)

Here is a small patch I suggest:
(I do not reach to implement an operational support of BLKGETSIZE64 [for
32bits kernel]; I do not find a easy way to manage code failure :-( )

--- uaccess.h.orig	2002-10-22 15:14:54.000000000 +0200
+++ uaccess.h	2002-10-23 13:46:48.000000000 +0200
@@ -35,10 +35,10 @@
 #define get_user __get_user
 
 #if BITS_PER_LONG == 32
-#define LDD_KERNEL(ptr)		BUG()
-#define LDD_USER(ptr)		BUG()
-#define STD_KERNEL(x, ptr)	BUG()
-#define STD_USER(x, ptr)	BUG()
+#define LDD_KERNEL(ptr)		BUG(); __gu_err=ENOTSUP;
+#define LDD_USER(ptr)		BUG(); __gu_err=ENOTSUP;
+#define STD_KERNEL(x, ptr)	BUG(); __pu_err=ENOTSUP;
+#define STD_USER(x, ptr)	BUG(); __pu_err=ENOTSUP;
 #else
 #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
 #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
@@ -75,7 +75,7 @@
 	    case 2: __get_kernel_asm("ldh",ptr); break; \
 	    case 4: __get_kernel_asm("ldw",ptr); break; \
 	    case 8: LDD_KERNEL(ptr); break;		\
-	    default: BUG(); break;                      \
+	    default: BUG(); __gu_err=ENOTSUP; break;    \
 	    }                                           \
 	}                                               \
 	else {                                          \
@@ -84,7 +84,7 @@
 	    case 2: __get_user_asm("ldh",ptr); break;   \
 	    case 4: __get_user_asm("ldw",ptr); break;   \
 	    case 8: LDD_USER(ptr);  break;		\
-	    default: BUG(); break;                      \
+	    default: BUG(); __gu_err=ENOTSUP; break;    \
 	    }                                           \
 	}                                               \
 							\
@@ -144,7 +144,7 @@
 	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
 	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
 	    case 8: STD_KERNEL(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: BUG(); __pu_err=ENOTSUP; break;		\
 	    }                                                   \
 	}                                                       \
 	else {                                                  \
@@ -153,7 +153,7 @@
 	    case 2: __put_user_asm("sth",x,ptr); break;         \
 	    case 4: __put_user_asm("stw",x,ptr); break;         \
 	    case 8: STD_USER(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: BUG(); __pu_err=ENOTSUP; break;		\
 	    }                                                   \
 	}                                                       \
 								\

If all agreed, (awaiting better :?) can somebody ci it?


Thanks in advance for attention,
    Joel

PS: 
B. in xfs:

 	error = ioctl(fd, BLKGETSIZE64, &size);
-	if (error >= 0) {
+	if (!error) {
 		/* BLKGETSIZE64 returns size in bytes not 512-byte blocks */

AFAIK ioctl should return error=0 if success and error <>0 (>0?) 

here is the full patch I will suggest:

--- cmd/xfsprogs/libxfs/init.c.orig	2002-10-25 12:12:29.000000000 +0200
+++ cmd/xfsprogs/libxfs/init.c	2002-10-25 14:22:34.000000000 +0200
@@ -155,11 +155,14 @@
 			progname, path, strerror(errno));
 		exit(1);
 	}
+#if !defined(__hppa__) || defined(__LP64__)
 	error = ioctl(fd, BLKGETSIZE64, &size);
-	if (error >= 0) {
+	if (!error) {
 		/* BLKGETSIZE64 returns size in bytes not 512-byte blocks */
 		size = size >> 9;
-	} else {
+	} else
+#endif
+        {
 		/* If BLKGETSIZE64 fails, try BLKGETSIZE */
 		unsigned long tmpsize;
 		error = ioctl(fd, BLKGETSIZE, &tmpsize);



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too bad:

 man ioctl advise that it would return -1 (not ENOTSUP which would be assign
to errno) I will try to see how?

Sorry to annoy,
    Joel

>-- Original Message --
>From: jsoe0708@tiscali.be
>Subject: Re: [parisc-linux] Re: mkfs.xfs (xfsprogs-2.3.5) failled
>To: "Randolph Chung" <randolph@tausq.org>,
>	"Stefan Pfetzing" <dreamind@dreamind.de>
>Cc: parisc-linux@lists.parisc-linux.org
>Date: Fri, 25 Oct 2002 14:58:42 +0200
>
>
>Hi Randolph,
>
>It sure I found a bug in the two parts kernel and xfs.
>
>A. The kernel hppa: put_user and get_user does just a printk for BUG messages
>but don't return error code as ENOTSUP (or what else) (what I assume the
>other platforms does when they do not yet support BLKGETSIZE64?)
>
>Here is a small patch I suggest:
>(I do not reach to implement an operational support of BLKGETSIZE64 [for
>32bits kernel]; I do not find a easy way to manage code failure :-( )
>
>--- uaccess.h.orig	2002-10-22 15:14:54.000000000 +0200
>+++ uaccess.h	2002-10-23 13:46:48.000000000 +0200
>@@ -35,10 +35,10 @@
> #define get_user __get_user
> 
> #if BITS_PER_LONG == 32
>-#define LDD_KERNEL(ptr)		BUG()
>-#define LDD_USER(ptr)		BUG()
>-#define STD_KERNEL(x, ptr)	BUG()
>-#define STD_USER(x, ptr)	BUG()
>+#define LDD_KERNEL(ptr)		BUG(); __gu_err=ENOTSUP;
>+#define LDD_USER(ptr)		BUG(); __gu_err=ENOTSUP;
>+#define STD_KERNEL(x, ptr)	BUG(); __pu_err=ENOTSUP;
>+#define STD_USER(x, ptr)	BUG(); __pu_err=ENOTSUP;
> #else
> #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
> #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
>@@ -75,7 +75,7 @@
> 	    case 2: __get_kernel_asm("ldh",ptr); break; \
> 	    case 4: __get_kernel_asm("ldw",ptr); break; \
> 	    case 8: LDD_KERNEL(ptr); break;		\
>-	    default: BUG(); break;                      \
>+	    default: BUG(); __gu_err=ENOTSUP; break;    \
> 	    }                                           \
> 	}                                               \
> 	else {                                          \
>@@ -84,7 +84,7 @@
> 	    case 2: __get_user_asm("ldh",ptr); break;   \
> 	    case 4: __get_user_asm("ldw",ptr); break;   \
> 	    case 8: LDD_USER(ptr);  break;		\
>-	    default: BUG(); break;                      \
>+	    default: BUG(); __gu_err=ENOTSUP; break;    \
> 	    }                                           \
> 	}                                               \
> 							\
>@@ -144,7 +144,7 @@
> 	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
> 	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
> 	    case 8: STD_KERNEL(x,ptr); break;			\
>-	    default: BUG(); break;                              \
>+	    default: BUG(); __pu_err=ENOTSUP; break;		\
> 	    }                                                   \
> 	}                                                       \
> 	else {                                                  \
>@@ -153,7 +153,7 @@
> 	    case 2: __put_user_asm("sth",x,ptr); break;         \
> 	    case 4: __put_user_asm("stw",x,ptr); break;         \
> 	    case 8: STD_USER(x,ptr); break;			\
>-	    default: BUG(); break;                              \
>+	    default: BUG(); __pu_err=ENOTSUP; break;		\
> 	    }                                                   \
> 	}                                                       \
> 								\
>
>If all agreed, (awaiting better :?) can somebody ci it?
>
>
>Thanks in advance for attention,
>    Joel
>
>PS: 
>B. in xfs:
>
> 	error = ioctl(fd, BLKGETSIZE64, &size);
>-	if (error >= 0) {
>+	if (!error) {
> 		/* BLKGETSIZE64 returns size in bytes not 512-byte blocks */
>
>AFAIK ioctl should return error=0 if success and error <>0 (>0?) 
>
>here is the full patch I will suggest:
>
>--- cmd/xfsprogs/libxfs/init.c.orig	2002-10-25 12:12:29.000000000 +0200
>+++ cmd/xfsprogs/libxfs/init.c	2002-10-25 14:22:34.000000000 +0200
>@@ -155,11 +155,14 @@
> 			progname, path, strerror(errno));
> 		exit(1);
> 	}
>+#if !defined(__hppa__) || defined(__LP64__)
> 	error = ioctl(fd, BLKGETSIZE64, &size);
>-	if (error >= 0) {
>+	if (!error) {
> 		/* BLKGETSIZE64 returns size in bytes not 512-byte blocks */
> 		size = size >> 9;
>-	} else {
>+	} else
>+#endif
>+        {
> 		/* If BLKGETSIZE64 fails, try BLKGETSIZE */
> 		unsigned long tmpsize;
> 		error = ioctl(fd, BLKGETSIZE, &tmpsize);
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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>  #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
>  #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
> @@ -75,7 +75,7 @@
>  	    case 2: __get_kernel_asm("ldh",ptr); break; \
>  	    case 4: __get_kernel_asm("ldw",ptr); break; \
>  	    case 8: LDD_KERNEL(ptr); break;		\
> -	    default: BUG(); break;                      \
> +	    default: BUG(); __gu_err=ENOTSUP; break;    \
>  	    }                                           \
>  	}                                               \

this is wrong.

get_user is not defined to return an errno, just whether it's successful
or not.

i'll take a closer look this weekend.

randolph


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Does anyone know which PA processors if any implement the BTS?  I
was also wondering about the ITLB P bit and what parisc-linux does
with it.  The came up in regard to accelerating branches for calls
and returns.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi,

I am trying to install Debian on HP Visualize C3000. I read the HOW-TO
and managed to make it boot from the ide cdrom drive. The Debian screen
comes up but then it is not able to read any input. Both Keyboard and
mouse are in USB port in my m/c. Is that the problem or is there
something else I am missing??

Thanks,
Balak



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Kedarnath Balakrishnan wrote:
> I am trying to install Debian on HP Visualize C3000. I read the HOW-TO
> and managed to make it boot from the ide cdrom drive. The Debian screen
> comes up but then it is not able to read any input. Both Keyboard and
> mouse are in USB port in my m/c. Is that the problem or is there
> something else I am missing??

I suspect the kernel in debian stable might just be too old.
Can you try newer net-install images from ESIEE?
	(ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/)

FWIW, at least three developers are *using* C3000 including myself.
But I've never cold installed using the debian since I've had bits
on this machine since well before any ISOs were available.
Probably would be a good exercise....

hth,
grant


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So my C180 has a different HVD controller chip than the 735?

derek

--- Grant Grundler <grundler@dsl2.external.hp.com> wrote:
> "John David Anglin" wrote:
> > > Is there any approx time for the WD driver? I have about 60G I
> can put on
> > > my machine if it works.. Will it work if It gets plugged in the
> SE Chain?
> > 
> > No.  It may cause damage.
> 
> Not true.
> Mixing SE and HVD devices on a SCSI bus will result in the interface
> chips "tri-stating". ie no one can talk on the bus. But nothing
> smokes
> either - at least not for the HP product testing I was involved with
> several years ago.
> 
> > There was a question about the WD driver not too long ago.  You
> could search
> > for the answer but I believe only hpux supports the WD interface at
> this
> > time.
> 
> And that's going to get dropped soon too.
> Last product to support HVD is based on Sym53c876 chip.
> The interface cards are supported on new IA64 machines
> but I'm not sure one can purchase them or purchase HVD disks.
> 
> > You may be able to add a newer LVD to the SE chain and have it
> > work.  I'm not sure if it could be used as a boot device though.
> 
> The LVD should work fine as a boot device in SE mode.
> LVD devices talk SE like any other SE device (AFAIK).
> 
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


__________________________________________________
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On Fri, Oct 25, 2002 at 05:00:14PM -0700, Derek Engelhaupt wrote:
> So my C180 has a different HVD controller chip than the 735?

The problem is that 735's CPU can't allocate consistent memory -- the
C180 has the CCIO IOMMU, so it can.  The ncr53c7xx driver relies on
being able to allocate consistent memory.

-- 
Revolutions do not require corporate support.


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> 
> I suspect the kernel in debian stable might just be too old.
> Can you try newer net-install images from ESIEE?
> 	(ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/)
> 
> FWIW, at least three developers are *using* C3000 including myself.
> But I've never cold installed using the debian since I've had bits
> on this machine since well before any ISOs were available.
> Probably would be a good exercise....
> 
> hth,
> grant


I used the serial console :} 

c.



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"John David Anglin" wrote:
> Does anyone know which PA processors if any implement the BTS?

No clue. I had to read the PA2.0 arch book (page 6-15, "Branch 
Target Stack) to learn what this is and what it does.

Anyay, it would be interesting to know if HPUX's acc uses it.
ie did it's usage ever get validated for both systems that do
and don't implement BTS?

> I was also wondering about the ITLB P bit and what parisc-linux does
> with it.  The came up in regard to accelerating branches for calls
> and returns.

It sounds like parisc-linux does nothing with P-bit.
We could just always enable it if you think that's the right
thing to do for now. Looks like could be done by adding one more
insn to itlb_miss_common_20w in entry.S.


But to answer both questions, remind me to dig this up if
no answer gets posted by next Wednesday or so.

grant


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Subject: Re: [parisc-linux] Re: mkfs.xfs (xfsprogs-2.3.5) failled
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Hmm question about "default:" uaccess.h implementation on different 
platform:

i386 declare: "extern void __get_user_bad(void);"

ia64: "extern void __get_user_unknown (void);"

mips: "extern void __get_user_unknown(void);"
...
but not define elsewhere? (is it there so that the build of the kernel 
failed if that case was requested to run properly?)

Thanks in advance for attention,
     Joel

PS: afaik on i386 only put_user_u64 is define why not pending get_user?


jsoe0708@tiscali.be wrote:
> too bad:
> 
>  man ioctl advise that it would return -1 (not ENOTSUP which would be assign
> to errno) I will try to see how?
> 
> Sorry to annoy,
>     Joel
> 
> 
>>-- Original Message --
>>From: jsoe0708@tiscali.be
>>Subject: Re: [parisc-linux] Re: mkfs.xfs (xfsprogs-2.3.5) failled
>>To: "Randolph Chung" <randolph@tausq.org>,
>>	"Stefan Pfetzing" <dreamind@dreamind.de>
>>Cc: parisc-linux@lists.parisc-linux.org
>>Date: Fri, 25 Oct 2002 14:58:42 +0200
>>
>>
>>Hi Randolph,
>>
>>It sure I found a bug in the two parts kernel and xfs.
>>
>>A. The kernel hppa: put_user and get_user does just a printk for BUG messages
>>but don't return error code as ENOTSUP (or what else) (what I assume the
>>other platforms does when they do not yet support BLKGETSIZE64?)
>>
>>Here is a small patch I suggest:
>>(I do not reach to implement an operational support of BLKGETSIZE64 [for
>>32bits kernel]; I do not find a easy way to manage code failure :-( )
>>
>>--- uaccess.h.orig	2002-10-22 15:14:54.000000000 +0200
>>+++ uaccess.h	2002-10-23 13:46:48.000000000 +0200
>>@@ -35,10 +35,10 @@
>>#define get_user __get_user
>>
>>#if BITS_PER_LONG == 32
>>-#define LDD_KERNEL(ptr)		BUG()
>>-#define LDD_USER(ptr)		BUG()
>>-#define STD_KERNEL(x, ptr)	BUG()
>>-#define STD_USER(x, ptr)	BUG()
>>+#define LDD_KERNEL(ptr)		BUG(); __gu_err=ENOTSUP;
>>+#define LDD_USER(ptr)		BUG(); __gu_err=ENOTSUP;
>>+#define STD_KERNEL(x, ptr)	BUG(); __pu_err=ENOTSUP;
>>+#define STD_USER(x, ptr)	BUG(); __pu_err=ENOTSUP;
>>#else
>>#define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
>>#define LDD_USER(ptr) __get_user_asm("ldd",ptr)
>>@@ -75,7 +75,7 @@
>>	    case 2: __get_kernel_asm("ldh",ptr); break; \
>>	    case 4: __get_kernel_asm("ldw",ptr); break; \
>>	    case 8: LDD_KERNEL(ptr); break;		\
>>-	    default: BUG(); break;                      \
>>+	    default: BUG(); __gu_err=ENOTSUP; break;    \
>>	    }                                           \
>>	}                                               \
>>	else {                                          \
>>@@ -84,7 +84,7 @@
>>	    case 2: __get_user_asm("ldh",ptr); break;   \
>>	    case 4: __get_user_asm("ldw",ptr); break;   \
>>	    case 8: LDD_USER(ptr);  break;		\
>>-	    default: BUG(); break;                      \
>>+	    default: BUG(); __gu_err=ENOTSUP; break;    \
>>	    }                                           \
>>	}                                               \
>>							\
>>@@ -144,7 +144,7 @@
>>	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
>>	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
>>	    case 8: STD_KERNEL(x,ptr); break;			\
>>-	    default: BUG(); break;                              \
>>+	    default: BUG(); __pu_err=ENOTSUP; break;		\
>>	    }                                                   \
>>	}                                                       \
>>	else {                                                  \
>>@@ -153,7 +153,7 @@
>>	    case 2: __put_user_asm("sth",x,ptr); break;         \
>>	    case 4: __put_user_asm("stw",x,ptr); break;         \
>>	    case 8: STD_USER(x,ptr); break;			\
>>-	    default: BUG(); break;                              \
>>+	    default: BUG(); __pu_err=ENOTSUP; break;		\
>>	    }                                                   \
>>	}                                                       \
>>								\
>>
>>If all agreed, (awaiting better :?) can somebody ci it?
>>
>>
>>Thanks in advance for attention,
>>   Joel
>>
>>PS: 
>>B. in xfs:
>>
>>	error = ioctl(fd, BLKGETSIZE64, &size);
>>-	if (error >= 0) {
>>+	if (!error) {
>>		/* BLKGETSIZE64 returns size in bytes not 512-byte blocks */
>>
>>AFAIK ioctl should return error=0 if success and error <>0 (>0?) 
>>
>>here is the full patch I will suggest:
>>
>>--- cmd/xfsprogs/libxfs/init.c.orig	2002-10-25 12:12:29.000000000 +0200
>>+++ cmd/xfsprogs/libxfs/init.c	2002-10-25 14:22:34.000000000 +0200
>>@@ -155,11 +155,14 @@
>>			progname, path, strerror(errno));
>>		exit(1);
>>	}
>>+#if !defined(__hppa__) || defined(__LP64__)
>>	error = ioctl(fd, BLKGETSIZE64, &size);
>>-	if (error >= 0) {
>>+	if (!error) {
>>		/* BLKGETSIZE64 returns size in bytes not 512-byte blocks */
>>		size = size >> 9;
>>-	} else {
>>+	} else
>>+#endif
>>+        {
>>		/* If BLKGETSIZE64 fails, try BLKGETSIZE */
>>		unsigned long tmpsize;
>>		error = ioctl(fd, BLKGETSIZE, &tmpsize);
>>
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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From: Joel Soete <joel.soete@freebel.net>
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Subject: [parisc-linux] SQUID failled :(
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Hi all,

Is somebody reach to make squid running on a woody pa-box?

I install it (to replace a old pentium 100Mhz box).

Well it start some second(s) then stop without any message anywhere 
(even if I start it with -X)?
The check of the config file is ok!

Thanks in advance for all adivise,
	Joel

PS: the running kernel is the last 2.4.19-pa22 32bits dpkg released (for 
the rest all is woody)



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> "John David Anglin" wrote:
> > Does anyone know which PA processors if any implement the BTS?
> 
> No clue. I had to read the PA2.0 arch book (page 6-15, "Branch 
> Target Stack) to learn what this is and what it does.

I did a quick hack to gcc yesterday to try it on the a500.  It
didn't seem to make any difference, so I think the PA-8500 doesn't
have a branch target stack.  I wonder if the PA-8700 in the rp2470
has it?  I suppose it also could be an add-on chip.

It's fairly easy to implement and the assembler already supports
the feature.  However, there might be issues with software compiled
without the feature not inter-operating with software compiled
with it.  For call-return acceleration, the safe solution of
pushing the return in the callee results in reduced performance.
You have to do the push in the call.  Maybe I will add this
as an option if there is actually some gear that has the option.

> Anyay, it would be interesting to know if HPUX's acc uses it.
> ie did it's usage ever get validated for both systems that do
> and don't implement BTS?
> 
> > I was also wondering about the ITLB P bit and what parisc-linux does
> > with it.  The came up in regard to accelerating branches for calls
> > and returns.
> 
> It sounds like parisc-linux does nothing with P-bit.
> We could just always enable it if you think that's the right
> thing to do for now. Looks like could be done by adding one more
> insn to itlb_miss_common_20w in entry.S.

I am guessing but I think setting it would help on machines with
dynamic prediction hardware.  There is probably a paper somewhere
on this on the HP site.  I tried to find info on the branch target
stack but didn't have any success.

My understanding is that pc-relative branches can be predicted
from examination of the code.  Indirect branches (e.g., call
returns) can't.  I don't know how the dynamic prediction hardware
works but I would think it wouldn't be there if it didn't
improve branch prediction.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi!
I was wondering if there is another way than what is descriped in the =
PA-RISC/linux-bootHOWTO to exit serial console and enter graphics =
console?

I would really appreciate an answer //Patrick
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<DIV><FONT face=3DArial size=3D2>Hi!<BR>I was wondering if there is =
another way than=20
what is descriped in the PA-RISC/linux-bootHOWTO to exit serial console =
and=20
enter graphics console?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
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In reference to a message from Joel Soete, dated Oct 26:
> i386 declare: "extern void __get_user_bad(void);"
> ...
> but not define elsewhere? (is it there so that the build of the kernel 
> failed if that case was requested to run properly?)

yes.

> PS: afaik on i386 only put_user_u64 is define why not pending get_user?

on first glance i haven't found any code that uses get_user with 64-bit
quantities. if you have a specific need for this, please let me know.

in the mean time, i've checked in support for put_user with 64-bit
values. This is in 2.4.19-pa24

Let me know if this works for you. i've tested it only lightly.

randolph
--  
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Joel Soete wrote:
> Hmm question about "default:" uaccess.h implementation on different 
> platform:
> 
> i386 declare: "extern void __get_user_bad(void);"
> 
> ia64: "extern void __get_user_unknown (void);"
> 
> mips: "extern void __get_user_unknown(void);"
> ...
> but not define elsewhere? (is it there so that the build of the kernel 
> failed if that case was requested to run properly?)

In the mean time I verify this hypothesis. So may I suggest a patch in 
this direction?

[Better would be to add _also_ support as in the patch I suggest in 
<http://lists.parisc-linux.org/pipermail/parisc-linux/2002-October/017887.html>
this was tested for __put_user_asm_64 && __put_kernel_asm_64 (not the 
corresponding __get_ :( I don't know yet if I can use a .fixup section ?)

May be some other could test and verify closer this part ?

Joel

> 
> Thanks in advance for attention,
>     Joel
> 
> PS: afaik on i386 only put_user_u64 is define why not pending get_user?
> 
> 
> jsoe0708@tiscali.be wrote:
> 
>> too bad:
>>
>>  man ioctl advise that it would return -1 (not ENOTSUP which would be 
>> assign
>> to errno) I will try to see how?
>>
>> Sorry to annoy,
>>     Joel
>>
>>
>>> -- Original Message --
>>> From: jsoe0708@tiscali.be
>>> Subject: Re: [parisc-linux] Re: mkfs.xfs (xfsprogs-2.3.5) failled
>>> To: "Randolph Chung" <randolph@tausq.org>,
>>>     "Stefan Pfetzing" <dreamind@dreamind.de>
>>> Cc: parisc-linux@lists.parisc-linux.org
>>> Date: Fri, 25 Oct 2002 14:58:42 +0200
>>>
>>>
>>> Hi Randolph,
>>>
>>> It sure I found a bug in the two parts kernel and xfs.
>>>
>>> A. The kernel hppa: put_user and get_user does just a printk for BUG 
>>> messages
>>> but don't return error code as ENOTSUP (or what else) (what I assume the
>>> other platforms does when they do not yet support BLKGETSIZE64?)
>>>
>>> Here is a small patch I suggest:
>>> (I do not reach to implement an operational support of BLKGETSIZE64 [for
>>> 32bits kernel]; I do not find a easy way to manage code failure :-( )
>>>
>>> --- uaccess.h.orig    2002-10-22 15:14:54.000000000 +0200
>>> +++ uaccess.h    2002-10-23 13:46:48.000000000 +0200
>>> @@ -35,10 +35,10 @@
>>> #define get_user __get_user
>>>
>>> #if BITS_PER_LONG == 32
>>> -#define LDD_KERNEL(ptr)        BUG()
>>> -#define LDD_USER(ptr)        BUG()
>>> -#define STD_KERNEL(x, ptr)    BUG()
>>> -#define STD_USER(x, ptr)    BUG()
>>> +#define LDD_KERNEL(ptr)        BUG(); __gu_err=ENOTSUP;
>>> +#define LDD_USER(ptr)        BUG(); __gu_err=ENOTSUP;
>>> +#define STD_KERNEL(x, ptr)    BUG(); __pu_err=ENOTSUP;
>>> +#define STD_USER(x, ptr)    BUG(); __pu_err=ENOTSUP;
>>> #else
>>> #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
>>> #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
>>> @@ -75,7 +75,7 @@
>>>         case 2: __get_kernel_asm("ldh",ptr); break; \
>>>         case 4: __get_kernel_asm("ldw",ptr); break; \
>>>         case 8: LDD_KERNEL(ptr); break;        \
>>> -        default: BUG(); break;                      \
>>> +        default: BUG(); __gu_err=ENOTSUP; break;    \
>>>         }                                           \
>>>     }                                               \
>>>     else {                                          \
>>> @@ -84,7 +84,7 @@
>>>         case 2: __get_user_asm("ldh",ptr); break;   \
>>>         case 4: __get_user_asm("ldw",ptr); break;   \
>>>         case 8: LDD_USER(ptr);  break;        \
>>> -        default: BUG(); break;                      \
>>> +        default: BUG(); __gu_err=ENOTSUP; break;    \
>>>         }                                           \
>>>     }                                               \
>>>                             \
>>> @@ -144,7 +144,7 @@
>>>         case 2: __put_kernel_asm("sth",x,ptr); break;       \
>>>         case 4: __put_kernel_asm("stw",x,ptr); break;       \
>>>         case 8: STD_KERNEL(x,ptr); break;            \
>>> -        default: BUG(); break;                              \
>>> +        default: BUG(); __pu_err=ENOTSUP; break;        \
>>>         }                                                   \
>>>     }                                                       \
>>>     else {                                                  \
>>> @@ -153,7 +153,7 @@
>>>         case 2: __put_user_asm("sth",x,ptr); break;         \
>>>         case 4: __put_user_asm("stw",x,ptr); break;         \
>>>         case 8: STD_USER(x,ptr); break;            \
>>> -        default: BUG(); break;                              \
>>> +        default: BUG(); __pu_err=ENOTSUP; break;        \
>>>         }                                                   \
>>>     }                                                       \
>>>                                 \
>>>
>>> If all agreed, (awaiting better :?) can somebody ci it?
>>>
>>>
>>> Thanks in advance for attention,
>>>   Joel
>>>
>>> PS: B. in xfs:
>>>
>>>     error = ioctl(fd, BLKGETSIZE64, &size);
>>> -    if (error >= 0) {
>>> +    if (!error) {
>>>         /* BLKGETSIZE64 returns size in bytes not 512-byte blocks */
>>>
>>> AFAIK ioctl should return error=0 if success and error <>0 (>0?)
>>> here is the full patch I will suggest:
>>>
>>> --- cmd/xfsprogs/libxfs/init.c.orig    2002-10-25 12:12:29.000000000 
>>> +0200
>>> +++ cmd/xfsprogs/libxfs/init.c    2002-10-25 14:22:34.000000000 +0200
>>> @@ -155,11 +155,14 @@
>>>             progname, path, strerror(errno));
>>>         exit(1);
>>>     }
>>> +#if !defined(__hppa__) || defined(__LP64__)
>>>     error = ioctl(fd, BLKGETSIZE64, &size);
>>> -    if (error >= 0) {
>>> +    if (!error) {
>>>         /* BLKGETSIZE64 returns size in bytes not 512-byte blocks */
>>>         size = size >> 9;
>>> -    } else {
>>> +    } else
>>> +#endif
>>> +        {
>>>         /* If BLKGETSIZE64 fails, try BLKGETSIZE */
>>>         unsigned long tmpsize;
>>>         error = ioctl(fd, BLKGETSIZE, &tmpsize);
>>>
>>> _______________________________________________
>>> parisc-linux mailing list
>>> parisc-linux@lists.parisc-linux.org
>>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
>>
>>
>> _______________________________________________
>> parisc-linux mailing list
>> parisc-linux@lists.parisc-linux.org
>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
> 
> 



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Subject: Re: [parisc-linux] Re: mkfs.xfs (xfsprogs-2.3.5) failled
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__pu_err disapear in ..asm64?
It doesn't seems to be an error, so don't we need anymore??

Joel Soete wrote:
> 
> 
> Randolph Chung wrote:
> 
>> In reference to a message from Joel Soete, dated Oct 26:
>>
>>> i386 declare: "extern void __get_user_bad(void);"
>>> ...
>>> but not define elsewhere? (is it there so that the build of the 
>>> kernel failed if that case was requested to run properly?)
>>
>>
>>
>> yes.
>>
>>
>>> PS: afaik on i386 only put_user_u64 is define why not pending get_user?
>>
>>
>>
>> on first glance i haven't found any code that uses get_user with 64-bit
>> quantities.
> 
> 
> Not found too.
> 
>> if you have a specific need for this, please let me know.
> 
> 
> No spefic need, thanks. It was just because mips (32bits) already 
> foreseen it and it would be already complete :)
> 
>>
>> in the mean time, i've checked in support for put_user with 64-bit
>> values. This is in 2.4.19-pa24
> 
> 
> Great, I will test it (in fact I was not so far; just a problem of 
> writing the right way).
> 
> Anyway couldn't we also consider __get_user_bad() and __get_kernel_bad() 
> for _default:_ case (just to avoid erronious case: with the problem 
> encounter with xfs test I was near to loose all my system :(( )?
> 
>>
>> Let me know if this works for you. i've tested it only lightly.
>>
> Just have to wait a few days to test at office.
> 
> Thanks again.
> 
> See you,
>     Joel
> 
> 



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"John David Anglin" wrote:
> I wonder if the PA-8700 in the rp2470 has it?

gsyprf11 is a 650Mhz PA8700. please try it.

> I suppose it also could be an add-on chip.

Think so?
After reading the description I had the impression BTS has to be on chip
and integrated in order to get the speed. But I'm just a SW engineer...

> I am guessing but I think setting it would help on machines with
> dynamic prediction hardware.  There is probably a paper somewhere
> on this on the HP site.

> My understanding is that pc-relative branches can be predicted
> from examination of the code.  Indirect branches (e.g., call
> returns) can't.

yes.  IIRC, branches forward tend to not be taken and branches backwards
tend to be loops. Or something along that line. But with PBO, the
static hints are better. And HPUX has a very cool "driver" called
"flipper" that will flip to static hints to match performance path
at run time.
 
> I don't know how the dynamic prediction hardware
> works but I would think it wouldn't be there if it didn't
> improve branch prediction.

yeah - I'll what I can learn about it this week.

thanks,
grant


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Joel Soete wrote:
> Is somebody reach to make squid running on a woody pa-box?
> I install it (to replace a old pentium 100Mhz box).
> Well it start some second(s) then stop without any message anywhere 

you check dmesg output?

grant


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-------------------
> Hi!
> I was wondering if there is another way than what is descriped in 
the PA-RISC/linux-bootHOWTO to exit serial console and enter graphics 
console?
> 
> I would really appreciate an answer //Patrick

I confess not even understanding the meaning of this question.

You don't "enter" or "exit" serial/graphic console.
You switch from one too another.

There is only one way to do so, the one described in the howto.
If there were others, we would have mentionned them...

HTH,


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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PROVA A NAVIGARE CON QUESTO NUOVO PROVIDER
E' VELOCE ED AFFIDABILE

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TI PAGANO PURE PER NAVIGARE!!!


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        A NAVIGARE CON QUESTO NUOVO PROVIDER<br>
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        <br>
        <a =
href=3D"http://www.emoti.it/home/?ID=3D426">http://www.emoti.it/home/?ID=3D=
426</a><br>
        <br>
        TI PAGANO PURE PER NAVIGARE!!!</font></p>
      </td>
  </tr>
</table>
</body>
</html>

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Hello,
/dev/sda1   *         1        15     61814   f0  Linux/PA-RISC boot
/dev/sda2            16       441   1756398   83  Linux
/dev/sda3           442       562    498883   82  Linux swap
/dev/sda4           563      1017   1875965   83  Linux
it is my partitions of my linux
Can I make /dev/sda2 which is / partition ext3 or reiserfs? i.e. journaling
FS
After I made dist-upgrade 1 week ago, my uname don't works, if I write uname
-a there is segmentation fault, any ideas?I am using 2.4.18-pa61, because
this kernel is more stable for me, than 2.4.19-p19 - pa22.

Regards

________________________________________________
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On Sun, Oct 27, 2002 at 11:28:04AM +0200, Stephan wrote:
> Hello,
> /dev/sda1   *         1        15     61814   f0  Linux/PA-RISC boot
> /dev/sda2            16       441   1756398   83  Linux
> /dev/sda3           442       562    498883   82  Linux swap
> /dev/sda4           563      1017   1875965   83  Linux
> it is my partitions of my linux
> Can I make /dev/sda2 which is / partition ext3 or reiserfs? i.e. journaling
> FS

Yes, why not?

tune2fs -j /

> After I made dist-upgrade 1 week ago, my uname don't works, if I write uname
> -a there is segmentation fault, any ideas?

I filed a bug report a few days ago. Check the Debian bug database.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V a)   Ralf.Hildebrandt@charite.de
Charite Campus Mitte                            Tel.  +49 (0)30-450 570-155
Referat V a - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Microsoft: "Where do you want to go today?"
Linux:     "Where do you want to be tomorrow?"
BSD:       "Are you guys coming, or what?"



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Hi,

Sunday, October 27, 2002, 2:23:03 AM, you wrote:

> "John David Anglin" wrote:
>> I wonder if the PA-8700 in the rp2470 has it?
> gsyprf11 is a 650Mhz PA8700. please try it.

It's quite a while ago that I worked on assembly level with HPPA so I
might be wrong. But as far as I know most of the HPPA (at least 8200 and
8700) implement static and dynamic branch prediction. Which scheme is
used is controlled on a per page basis with the P-Bit in the ITLB.

With the HP c/c++ compilers you can control this behaviour using the
+O[no]static_prediction flags.

> Think so?
> After reading the description I had the impression BTS has to be on chip
> and integrated in order to get the speed. But I'm just a SW engineer...
Yep. If it's implemented it has to be on chip.

> yes.  IIRC, branches forward tend to not be taken and branches backwards
> tend to be loops. Or something along that line. But with PBO, the
> static hints are better. And HPUX has a very cool "driver" called
> "flipper" that will flip to static hints to match performance path
> at run time.
 
>> I don't know how the dynamic prediction hardware
>> works but I would think it wouldn't be there if it didn't
>> improve branch prediction.
In this case a branch history table is used which records the results of the
last branches. HPPA uses a three bit shift register (256 entries).
The fetch unit checks this register and predicts the branch according to the
content. eg. if the branch was taken two times before it is predicted that it
will be taken again.

If you are interested in more details I can check tomorrow when I'm back to
office. I should have a paper somewhere which compares static and dynamic
branch prediction on PA2.0.

  hope that helps

     Nic



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From: Thibaut VARENE <varenet@esiee.fr>
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-------------------
> Hi! Again
> 
> Why doesn't my system like to boot parisc-linux from the cd?
> It "hangs" after printing HPMC and a bunch of adresses to the 
screen :(

Have you checked md5sum ?
Are you sure your CD is properly burned ?
Are you sure your CD-ROM drive is working properly and supported ?

Please search the mailing-list archive, this question has been asked 
several times.

And please, do not mail me personnaly. This is not a private lesson.


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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Ralf Hildebrandt wrote:
> On Sun, Oct 27, 2002 at 11:28:04AM +0200, Stephan wrote:
> 
>>Hello,
>>/dev/sda1   *         1        15     61814   f0  Linux/PA-RISC boot
>>/dev/sda2            16       441   1756398   83  Linux
>>/dev/sda3           442       562    498883   82  Linux swap
>>/dev/sda4           563      1017   1875965   83  Linux
>>it is my partitions of my linux
>>Can I make /dev/sda2 which is / partition ext3 or reiserfs? i.e. journaling
>>FS
> 
> 
> Yes, why not?
> 
> tune2fs -j /

Afaik palo does not support reiserfs; if you boot from your kernel 
located into /boot it could be a problem !?

> 
>>After I made dist-upgrade 1 week ago, my uname don't works, if I write uname
>>-a there is segmentation fault, any ideas?
> 
> 
> I filed a bug report a few days ago. Check the Debian bug database.
> 
Yes I also test it and it works fine; thanks a lot

Cheers,
	Joel



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Am 27.10.2002 um 19:56:41 +0000 schrieb Joel Soete folgendes:

> >Yes, why not?
> >
> >tune2fs -j /
> 
> Afaik palo does not support reiserfs; if you boot from your kernel 
> located into /boot it could be a problem !?

We're talking about ext3, not reiserfs.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V a)   Ralf.Hildebrandt@charite.de
Charite Campus Mitte                            Tel.  +49 (0)30-450 570-155
Referat V a - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
Went to Stop&Go to get ANOTHER case of insert favorite caffinated beverage here 



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Xref: news.gmane.org gmane.linux.ports.parisc:16614

I was wondering ... the VIS-EG is about as close to "fully supported" as 
they get, right?

Well, I have one of those in a C240 and ... well, the system is otherwise 
just fine, even KDE is fairly responsive and all that, but there's a 
shortage of available colors. (anyone know of a good lowcolor icon theme? 
I can't seem to find such in Debian... anyone?)

Is it possible to get more than 8 bpp out of a VIS-EG? How would I go 
about that, do I need to say something like "stifb:bpp:foo" to the kernel 
or is fbset enough?

How much of a difference is there between VIS-EG/PCI (A4977A) and 
VIS-EG/GSC (A4450A) in this regard? I have an A4450A in there at the 
moment.

HP-UX seems to find a whole lot of differences and such ... and I did run 
GNOME/HP-UX once on a VIS-EG/PCI without running out of colors but then 
again HP-UX does color recovery and acceleration and all that on those...


Then, is an Ati Mach64 likely to work? I mean, it should be pretty 
well-supported in i386 ... and I've heard rumors about Sun-branded 
Mach64s too, so that would point to least some models getting by without 
a PC BIOS.


Third, what's the thing with $TERM and the serial console? I have 
interesting problems with the 70096, even in vt100-emulation mode the 
Debian installer was, um, interesting. Doesn't anyone else want to use 
the HP dumb-terminal hardware with Linux?


And as an aside, how reliable is the disk stuff nowadays? Would it make 
any sense to run a file server on Linux/hppa yet? I mean, something like 
a stack of A3312As, software-RAID and NFS ... is it likely to work? How 
about performance, compared to HP-UX, for example? (yes, I'd expect HP-UX 
to be somewhat better, but by how much?)


-- 
Mikko Nahkola <mikko.nahkola@nokia.com>


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Subject: [parisc-linux] 2.4.19-pa24 (uaccess.h patch) [was: mkfs.xfs failled]
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To: "Randolph Chung" <randolph@tausq.org>
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Randolph,

I test it this morming with evms and xfs together and it seems to works
fine (no memory default encounter so I could not check ex_table behaviour)

Thanks,
    Joel

PS: Can you explain the willy's idea on how to replace ex_table?

ps: What do think about this:
--- uaccess.h.orig	2002-10-28 14:58:13.000000000 +0100
+++ uaccess.h	2002-10-28 15:01:31.000000000 +0100
@@ -28,6 +28,11 @@
  * that put_user is the same as __put_user, etc.
  */

+extern int __get_kernel_bad(void);
+extern int __get_user_bad(void);
+extern int __put_kernel_bad(void);
+extern int __put_user_bad(void);
+
 #define access_ok(type,addr,size)   (1)
 #define verify_area(type,addr,size) (0)

@@ -35,8 +40,8 @@
 #define get_user __get_user

 #if BITS_PER_LONG == 32
-#define LDD_KERNEL(ptr)		BUG()
-#define LDD_USER(ptr)		BUG()
+#define LDD_KERNEL(ptr)		__get_kernel_bad();
+#define LDD_USER(ptr)		__get_user_bad();
 #define STD_KERNEL(x, ptr) __put_kernel_asm64(x,ptr)
 #define STD_USER(x, ptr) __put_user_asm64(x,ptr)
 #else
@@ -75,7 +80,7 @@
 	    case 2: __get_kernel_asm("ldh",ptr); break; \
 	    case 4: __get_kernel_asm("ldw",ptr); break; \
 	    case 8: LDD_KERNEL(ptr); break;		\
-	    default: BUG(); break;                      \
+	    default: __get_kernel_bad(); break;         \
 	    }                                           \
 	}                                               \
 	else {                                          \
@@ -84,7 +89,7 @@
 	    case 2: __get_user_asm("ldh",ptr); break;   \
 	    case 4: __get_user_asm("ldw",ptr); break;   \
 	    case 8: LDD_USER(ptr);  break;		\
-	    default: BUG(); break;                      \
+	    default: __get_user_bad(); break;           \
 	    }                                           \
 	}                                               \
 							\
@@ -144,7 +149,7 @@
 	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
 	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
 	    case 8: STD_KERNEL(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: __put_kernel_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 	else {                                                  \
@@ -153,7 +158,7 @@
 	    case 2: __put_user_asm("sth",x,ptr); break;         \
 	    case 4: __put_user_asm("stw",x,ptr); break;         \
 	    case 8: STD_USER(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: __put_user_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 								\





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> 
> And as an aside, how reliable is the disk stuff nowadays? Would it make 
> any sense to run a file server on Linux/hppa yet? I mean, something like 
> a stack of A3312As, software-RAID and NFS ... is it likely to work? How 
> about performance, compared to HP-UX, for example? (yes, I'd expect HP-UX 
> to be somewhat better, but by how much?)
> 

I'm using/testing a C3K as an NFS fileserver for our cluster of
715/50's. A large portion of the nodes run diskless, and performance is
relatively good. Haven't run LADDIS or any other benchmarks. What do
people run these days to test NFS? If only it didn't cost an arm and a 
leg... SPEC SFS97_v3.0

c.



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Subject: Re: [parisc-linux] 2.4.19-pa24 (uaccess.h patch) [was: mkfs.xfs failled]
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On Mon, Oct 28, 2002 at 03:22:31PM +0100, jsoe0708@tiscali.be wrote:
> PS: Can you explain the willy's idea on how to replace ex_table?

ex_table is used for recovering from a page fault.  i don't see how we
can take a page fault when copying to kernel ram.

-- 
Revolutions do not require corporate support.


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From: tsbogend@alpha.franken.de (Thomas Bogendoerfer)
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On Mon, Oct 28, 2002 at 01:25:52PM +0200, Nahkola Mikko wrote:
> I was wondering ... the VIS-EG is about as close to "fully supported" as 
> they get, right?

there are still 2D drawing accelerations possible, hardware cursor,
color recovery and usage of the second color map.

> Is it possible to get more than 8 bpp out of a VIS-EG?

no, VIS-EG is 8 bit color, no way to get more.

> How much of a difference is there between VIS-EG/PCI (A4977A) and 
> VIS-EG/GSC (A4450A) in this regard? I have an A4450A in there at the 
> moment.

no difference in color depth between PCI and GSC cards.

> HP-UX seems to find a whole lot of differences and such ... and I did run 
> GNOME/HP-UX once on a VIS-EG/PCI without running out of colors but then 
> again HP-UX does color recovery and acceleration and all that on those...

I guess the HP-UX Xserver uses the second color map and color recovery.
I've looked a little bit how to use the second color map and I haven't
found a simple to way to add support to XFree for it. It's a nice way
to have 256 color for the desktop and 256 independant colors for the
application with focus. Maybe some XFree86 guru could give me a hint how
to implement it.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]


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>
> ex_table is used for recovering from a page fault.  i don't see how we
> can take a page fault when copying to kernel ram.
>

Let's wait on removing this support.  This mechanism provides a way of
testing whether or not an address is a valid kernel address (in addition
to range checking the address).  I'd like to consider implementing the
virtual mem map support (currently implemented on ia64) on parisc as an
alternative mechanism (to willy's idea of using kmap/kunmap) for getting
back the 256Mb of memory we currently ignore for Astro based machines with
more than 3.75 Gb of memory.  The virtual mem map code uses this exact
mechanism to determine whether or not a struct page pointer is pointing
into a sparse (unallocated) region of the virtual mem map array (i.e. on
ia64 the ia64_page_valid() routine does a get_user on the first byte and
checks the return from get_user to see if it fails/succeeds).

John


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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] framebuffer depth and other issues ...
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Nahkola,
You asked alot of questions. I take a shot at one of them:

Nahkola Mikko wrote:
> And as an aside, how reliable is the disk stuff nowadays? Would it make 
> any sense to run a file server on Linux/hppa yet?

Yes. I'm running a linux http/ftp server inhouse on a B180 with 200GB disk.
It mirrors RH/SuSE/Mandrake and Debian for Cupertino site.
I have to get mrtg running again to collect stats.
Nightly updates and it's never crashed.

BTW, this box also serves as my regular desktop.

> I mean, something like 
> a stack of A3312As, software-RAID and NFS ... is it likely to work?

I don't do RAID or NFS. I mean this *is* a mirror.

> How 
> about performance, compared to HP-UX, for example? (yes, I'd expect HP-UX 
> to be somewhat better, but by how much?)

lmbench results are in the parisc-linux mail archive (lists.parisc-linux.org).
IO/FS stuff was comparable, linux context switching sucks.

grant


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Subject: Re: [parisc-linux] 2.4.19-pa24 (uaccess.h patch)
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On Mon, Oct 28, 2002 at 05:12:03PM -0700, John Marvin wrote:
> > ex_table is used for recovering from a page fault.  i don't see how we
> > can take a page fault when copying to kernel ram.
> 
> Let's wait on removing this support.  This mechanism provides a way of
> testing whether or not an address is a valid kernel address (in addition
> to range checking the address).  I'd like to consider implementing the
> virtual mem map support (currently implemented on ia64) on parisc as an
> alternative mechanism (to willy's idea of using kmap/kunmap) for getting
> back the 256Mb of memory we currently ignore for Astro based machines with
> more than 3.75 Gb of memory.  The virtual mem map code uses this exact
> mechanism to determine whether or not a struct page pointer is pointing
> into a sparse (unallocated) region of the virtual mem map array (i.e. on
> ia64 the ia64_page_valid() routine does a get_user on the first byte and
> checks the return from get_user to see if it fails/succeeds).

Well.. if you're interested in working on PA again, I have 3 ideas which
kind of overlap (you seem to have confused two of them, so it's worth
talking about them all):

(1) get/put_user & copy_to/from_user should always copy to %sr3.
    set_fs et al should manipulate sr3.  Last time this came up, you said
    this should work but would need testing.  That gets rid of the duplicate
    exception tables.

(2) the kmap/kunmap idea was to avoid cache aliasing.  we always kmap a
    pagecache page before we access it, so we can map it to an address that
    is "equivalent" to the userspace address before accessing it.  Not sure
    we get away with making flush_dcache_page() a no-op, though.

(3) For getting back the 256MB of memory mapped at 64GB, I think the
    DISCONTIG code in 2.5 is now suitable.  It's now based on zones,
    not nodes, so we can have a ZONE_DMA from 0-3.75GB, ZONE_NORMAL from
    4-xGB and ZONE_HIGHMEM from 64GB to 64GB+256MB.  I suspect this is
    the right thing to do on ia64 too, for 2.5.

-- 
Revolutions do not require corporate support.


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> Well.. if you're interested in working on PA again, I have 3 ideas which
> kind of overlap (you seem to have confused two of them, so it's worth
> talking about them all):

I didn't get them confused in the way you think.  I knew that you were
proposing using kmap/kunmap to solve the flushing/aliasing issues,
especially on stretch.  But I saw your todo message suggesting the use of
zone_highmem for getting back the 256Mb.  My 2.4 based understanding is
that the kernel kmaps memory in that zone in order to use it.  That may no
longer be true on 2.5 (or may not ever have been true in the first place).
I'll be looking at that immediately, since I have to either merge the
virtual mem map stuff into 2.5, or see if the vm changes with respect to
zones will solve the problem as you suggest. Whatever works for ia64
will probably also work for parisc, since the problem is similar (although
a little more extreme on ia64).

On another note, I am still looking at the I bit issue with respect to
handle_interruption. What I forgot was that we always turn the I bit
off when we switch to virtual mode before calling handle_interruption.
So, the I bit needs to be on for user faults at the very least. That is
why I put that code in there.

However, Grant is right in that there is a hole if the kernel faults with
the I bit off.  Normally that would be a bug, i.e. there are few valid
reasons for the kernel to fault with the I bit off (what I mean by fault
in this case is something that makes it to handle_interruption, not
something that gets handled at a lower level, like a tlb miss).  But, I
can think of a few possible scenarios where it might be happen
legitimately, although I don't know if any actually occur.

The right solution is to restore the I bit to whatever it was at the time
of the fault.  That is probably more appropriately handled at virt_map
time (add a register argument to the macro holding the desired I bit
state, call with r0 for intr_extint, call with previous masked value from
ipsw for intr_save).  I believe if done right, we can also set things up
properly in hpmc.S so that when it calls intr_save, the I bit won't be
turned on, and we can remove the special case code from handle_interruption.

I'm also looking at a potential problem in parisc's return from
syscall/faults.  I'll hopefully fix all the above soon.  And yes, I'll
merge it into 2.5 also.

John


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On Mon, Oct 28, 2002 at 10:55:02PM -0700, John Marvin wrote:
> I didn't get them confused in the way you think.  I knew that you were
> proposing using kmap/kunmap to solve the flushing/aliasing issues,
> especially on stretch.  But I saw your todo message suggesting the use of
> zone_highmem for getting back the 256Mb.  My 2.4 based understanding is
> that the kernel kmaps memory in that zone in order to use it.  That may no
> longer be true on 2.5 (or may not ever have been true in the first place).

That's true.  It's only available for allocation to requests that have
__GFP_HIGHMEM set, ie those that specify GFP_HIGHUSER.  And all those
users kmap it to ensure that it's addressable.  But that includes almost
all the allocations done to give ram to userspace, so I suspect this zone
will be exhausted long before the othr zones.

As an existance proof, people really do run x86 boxes with 15GB of
ZONE_HIGHMEM and 800MB of ZONE_NORMAL, and it works for most workloads.
The exceptions are things like 1000 oracle processes mmaping 2GB each.
They run out of ZONE_NORMAL because ptes are still allocated from there.

> I'll be looking at that immediately, since I have to either merge the
> virtual mem map stuff into 2.5, or see if the vm changes with respect to
> zones will solve the problem as you suggest. Whatever works for ia64
> will probably also work for parisc, since the problem is similar (although
> a little more extreme on ia64).

Yep.  The worst case is 1GB of ZONE_DMA and 3GB of ZONE_HIGHMEM, which
is still not as bad as x86 gets.  Of course, kmap is still a nop since
we can still address the "highmem".  I do think the zones need to be
redesigned a bit; they're still too x86-centric.  There might still be
time for that before 2.6...

> I'm also looking at a potential problem in parisc's return from
> syscall/faults.  I'll hopefully fix all the above soon.  And yes, I'll
> merge it into 2.5 also.

Great, thanks!

-- 
Revolutions do not require corporate support.


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This is a multi-part message in MIME format.

------=_NextPart_000_0138_01C27F35.5E755FE0
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Hi there:

I have the oportunity to buy an hp 9000 k200 server, but I need run =
linux on it. I had read the mailing list history but the last email =
about is from March. I would to know if someone has installed it =
succesfuly with the new Debian 3.0 from July.

Thanks.

Emilio.
------=_NextPart_000_0138_01C27F35.5E755FE0
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2800.1106" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi there:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I have the oportunity to buy an hp 9000 =
k200=20
server, but I need run linux on it. I had read the mailing list history =
but the=20
last email about is from March. I would to know if someone has installed =
it=20
succesfuly with the new Debian 3.0 from July.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Emilio.</FONT></DIV></BODY></HTML>

------=_NextPart_000_0138_01C27F35.5E755FE0--



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John Marvin wrote:
> However, Grant is right in that there is a hole if the kernel faults with
> the I bit off.

yes - I guess that's another way of looking at it.
My concern was around all the places in entry.S that return to
the intr_return label. That results in I-bit getting unconditional
set (thus re-enabling interrupts) until rfir restores it.
It opens a window where 

> Normally that would be a bug, i.e. there are few valid
> reasons for the kernel to fault with the I bit off (what I mean by fault
> in this case is something that makes it to handle_interruption, not
> something that gets handled at a lower level, like a tlb miss).

hmm...not sure about that. We have lots of misc reasons for traps/faults
where we just might not be handling the CPU correctly. In "Group 2"
Interrupt Class, only LPMC might be expected - but we don't protect
against the others either. I need to add code to "handle_interrupt()"
to see if I'm hitting that code path and how.

> But, I can think of a few possible scenarios where it might be happen
> legitimately, although I don't know if any actually occur.

I guess i should convince myself 100% it is happening and which trap/fault
is the offending bit.

> The right solution is to restore the I bit to whatever it was at the time
> of the fault.

I'm thinking the right solution is *only* the 'extr_interrupt' code
path should touch the I-bit after it's handled the external interrupt.
rfir will restore to what it should be. In practice, this would
mean that only extr_intr label will return to intr_return.
Everyone else will return to intr_restore.

And we need to find instances of local_irq_disable() when
I-bit is already off. Non-trivial since some code will save flags,
disable IRQ, and restore flags later.

> That is probably more appropriately handled at virt_map
> time (add a register argument to the macro holding the desired I bit
> state, call with r0 for intr_extint, call with previous masked value from
> ipsw for intr_save).  I believe if done right, we can also set things up
> properly in hpmc.S so that when it calls intr_save, the I bit won't be
> turned on, and we can remove the special case code from handle_interruption.

sounds like you understand this part of the code alot better than I do.

> I'm also looking at a potential problem in parisc's return from
> syscall/faults.  I'll hopefully fix all the above soon.  And yes, I'll
> merge it into 2.5 also.

cool - I'm testing my proposal to change other to use intr_restore path
but it's still deadlocking on io_request_lock at boot. Either some other
code must still be mucking with the I-bit or something is corrupting
the io_request_lock.

thanks,
grant


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Emilio Adrianzn Acosta wrote:

> Hi there:
>  
> I have the oportunity to buy an hp 9000 k200 server, but I need run 
> linux on it. I had read the mailing list history but the last email 
> about is from March. I would to know if someone has installed it 
> succesfuly with the new Debian 3.0 from July.
>  
> Thanks.
>  
> Emilio.


Hello Emilio,
I have K210 and I have been installed 0.9.3 parisc linux, after I made 
dist-upgrade all is working, and I am thinking
that you shouldn't have problems with debian 3.0




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Emilio,

Debian 3.0 out of the box will not support the K class systems because
of the serial mux/pdc console.

Use the ESIEE installers, (search the mail list for details) then
everything should work as expected.

Thanks,

- Ryan

On Wed, 2002-10-30 at 00:24, Stephan Trajkoff wrote:
> Emilio Adrianz=E9n Acosta wrote:
>=20
> > Hi there:
> > =20
> > I have the oportunity to buy an hp 9000 k200 server, but I need run=20
> > linux on it. I had read the mailing list history but the last email=20
> > about is from March. I would to know if someone has installed it=20
> > succesfuly with the new Debian 3.0 from July.
> > =20
> > Thanks.
> > =20
> > Emilio.
>=20
>=20
> Hello Emilio,
> I have K210 and I have been installed 0.9.3 parisc linux, after I made=20
> dist-upgrade all is working, and I am thinking
> that you shouldn't have problems with debian 3.0
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>=20




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From: =?iso-8859-1?Q?Emilio_Adrianz=E9n_Acosta?= <eadrianzen@tsd.com.pe>
Newsgroups: gmane.linux.ports.parisc
Subject: Fw: [parisc-linux] HP 9000 K200
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Thanks Ryan:

I am downloading it now.

One question: I need the source code of the sendmail to be modified and
recompiled in the box, the standard source code will work or there ie
another source code of sendmail for this server.

Thanks for the support.

I will keep you informed about the progress.

> ----- Original Message -----
> From: "Ryan Bradetich" <rbradetich@uswest.net>
> To: "Stephan Trajkoff" <stephan@itp.bg>
> Cc: "Emilio Adrianzn Acosta" <eadrianzen@tsd.com.pe>;
> <parisc-linux@lists.parisc-linux.org>
> Sent: Wednesday, October 30, 2002 9:42 AM
> Subject: Re: [parisc-linux] HP 9000 K200
>
>
> Emilio,
>
> Debian 3.0 out of the box will not support the K class systems because
> of the serial mux/pdc console.
>
> Use the ESIEE installers, (search the mail list for details) then
> everything should work as expected.
>
> Thanks,
>
> - Ryan
>
> On Wed, 2002-10-30 at 00:24, Stephan Trajkoff wrote:
> > Emilio Adrianzn Acosta wrote:
> >
> > > Hi there:
> > >
> > > I have the oportunity to buy an hp 9000 k200 server, but I need run
> > > linux on it. I had read the mailing list history but the last email
> > > about is from March. I would to know if someone has installed it
> > > succesfuly with the new Debian 3.0 from July.
> > >
> > > Thanks.
> > >
> > > Emilio.
> >
> >
> > Hello Emilio,
> > I have K210 and I have been installed 0.9.3 parisc linux, after I made
> > dist-upgrade all is working, and I am thinking
> > that you shouldn't have problems with debian 3.0
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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From: Grant Grundler <grundler@dsl2.external.hp.com>
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=?iso-8859-1?Q?Emilio_Adrianz=E9n_Acosta?= wrote:
> One question: I need the source code of the sendmail to be modified and
> recompiled in the box, the standard source code will work or there ie
> another source code of sendmail for this server.

yes - it's called "postfix"
;^)

(just teasing - use "apt-get source sendmail" to get source.)

grant

grundler <532>apt-get source sendmail
Reading Package Lists... Done
Building Dependency Tree... Done
Need to get 0B/2149kB of source archives.
dpkg-source: extracting sendmail in sendmail-8.12.6
grundler <533>



From - Thu Nov 08 21:25:15 2018
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From: "BUCH-PEDERSEN,LEIF (HP-France,ex1)" <leif_buch-pedersen@hp.com>
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Subject: [parisc-linux] ip6tables problem
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Xref: news.gmane.org gmane.linux.ports.parisc:16630

For some time I have been running a customized version of a 2.4.18 kernel
with ipv6 enabled on. Now I want to look at the use of iptables (ip6tables).


To do this have enabled ipv6 netfilter configuration options and compiled
several versions of the kernel (everything compiled into the kernel,
netfilter as modules, kernel based on 2.4.19-pa5 from parisc-linux.org). In
all cases the kernel compiles but ip6tables does not work. 

Using the kernel with modules I have been able to boil down the problem to a
problem with the module ip6table_filter. 

When I am doing 'insmod ip6table-filter' I get a message :
ip6table_filter.o: init_module: Invalid argument

And this is where I am stuck. There is no more information in syslog or
dmesg. Any ideas ?


Leif Buch-Pedersen
HP France, Grenoble

PS: ip6table_filter loads OK using a 2.4.18 kernel on a machine with a
Pentium processor.


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From: Grant Grundler <grundler@dsl2.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ip6tables problem
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Xref: news.gmane.org gmane.linux.ports.parisc:16631

"BUCH-PEDERSEN,LEIF (HP-France,ex1)" wrote:
> To do this have enabled ipv6 netfilter configuration options and compiled
> several versions of the kernel (everything compiled into the kernel,
> netfilter as modules, kernel based on 2.4.19-pa5 from parisc-linux.org). In
> all cases the kernel compiles but ip6tables does not work. 

Not many people use IPV6 (ie run it on their machines).
I'm not aware of anyone trying it for parisc-linux.

> When I am doing 'insmod ip6table-filter' I get a message :
> ip6table_filter.o: init_module: Invalid argument
> 
> And this is where I am stuck. There is no more information in syslog or
> dmesg. Any ideas ?

Add printk() calls in the offending module.

	rmmod ip6table-filter
	vi net/ipv6/netfilter/ip6table_filter.c
	make modules
	make modules_install
	modprobe ip6table-filter 

until you can narrow down what's failing in init() routine.
See module_init(init) line at the bottom of ip6table_filter.c.

> PS: ip6table_filter loads OK using a 2.4.18 kernel on a machine with a
> Pentium processor.

suggests parisc is missing some arch specific IPV6 support.

grant


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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] SCSI patches
Date: Fri, 1 Nov 2002 13:18:18 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:16632

In the continuing mission to send our patches upstream... here's the sum
total of our SCSI patches.  As you can see there's not _much_ compared
to what we used to have ... but some of it looks a little fishy (did
MIPS really add support for PA-RISC?  ;-)

Anyway, I don't feel confident sending this upstream myself -- I don't
understand most of the changes, and wouldn't feel happy defending them.
Can I have a volunteer who does grok these scsi changes to send them
upstream?

diff -urpNX build-tools/dontdiff linus-2.5/drivers/scsi/Kconfig parisc-2.5/drivers/scsi/Kconfig
--- linus-2.5/drivers/scsi/Kconfig	Thu Oct 31 10:27:51 2002
+++ parisc-2.5/drivers/scsi/Kconfig	Thu Oct 31 16:30:09 2002
@@ -993,6 +993,16 @@ config SCSI_SYM53C8XX_2
 	  Please read <file:drivers/scsi/sym53c8xx_2/Documentation.txt> for more
 	  information.
 
+config SCSI_ZALON
+	tristate "Zalon SCSI support"
+	depends on GSC && SCSI && SCSI_SYM53C8XX_2!=y
+	help
+	  The Zalon is a GSC/HSC bus interface chip that sits between the
+	  PA-RISC processor and the NCR 53c720 SCSI controller on C100,
+	  C110, J200, J210 and some D, K & R-class machines.  It's also
+	  used on the add-in Bluefish, Barracuda & Shrike SCSI cards.
+	  Say Y here if you have one of these machines or cards.
+
 config SCSI_SYM53C8XX_DMA_ADDRESSING_MODE
 	int "DMA addressing mode"
 	depends on SCSI_SYM53C8XX_2
@@ -1097,7 +1107,7 @@ config SCSI_SYM53C8XX
 
 config SCSI_NCR53C8XX_DEFAULT_TAGS
 	int "default tagged command queue depth"
-	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX)
+	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX || SCSI_ZALON)
 	default "8"
 	---help---
 	  "Tagged command queuing" is a feature of SCSI-2 which improves
@@ -1123,7 +1133,7 @@ config SCSI_NCR53C8XX_DEFAULT_TAGS
 
 config SCSI_NCR53C8XX_MAX_TAGS
 	int "maximum number of queued commands"
-	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX)
+	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX || SCSI_ZALON)
 	default "32"
 	---help---
 	  This option allows you to specify the maximum number of commands
@@ -1140,7 +1150,7 @@ config SCSI_NCR53C8XX_MAX_TAGS
 
 config SCSI_NCR53C8XX_SYNC
 	int "synchronous transfers frequency in MHz"
-	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX)
+	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX || SCSI_ZALON)
 	default "20"
 	---help---
 	  The SCSI Parallel Interface-2 Standard defines 5 classes of transfer
@@ -1174,7 +1184,7 @@ config SCSI_NCR53C8XX_SYNC
 
 config SCSI_NCR53C8XX_PROFILE
 	bool "enable profiling"
-	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX)
+	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX || SCSI_ZALON)
 	help
 	  This option allows you to enable profiling information gathering.
 	  These statistics are not very accurate due to the low frequency
@@ -1185,7 +1195,7 @@ config SCSI_NCR53C8XX_PROFILE
 
 config SCSI_NCR53C8XX_IOMAPPED
 	bool "use normal IO"
-	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX)
+	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX) && !SCSI_ZALON
 	help
 	  If you say Y here, the driver will use normal IO, as opposed to
 	  memory mapped IO. Memory mapped IO has less latency than normal IO
@@ -1210,7 +1220,7 @@ config SCSI_NCR53C8XX_PQS_PDS
 
 config SCSI_NCR53C8XX_NO_DISCONNECT
 	bool "not allow targets to disconnect"
-	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX) && SCSI_NCR53C8XX_DEFAULT_TAGS=0
+	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX || SCSI_ZALON) && SCSI_NCR53C8XX_DEFAULT_TAGS=0
 	help
 	  This option is only provided for safety if you suspect some SCSI
 	  device of yours to not support properly the target-disconnect
@@ -1220,7 +1230,7 @@ config SCSI_NCR53C8XX_NO_DISCONNECT
 
 config SCSI_NCR53C8XX_SYMBIOS_COMPAT
 	bool "assume boards are SYMBIOS compatible (EXPERIMENTAL)"
-	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX) && EXPERIMENTAL
+	depends on PCI && SCSI_SYM53C8XX_2!=y && (SCSI_NCR53C8XX || SCSI_SYM53C8XX || SCSI_ZALON) && EXPERIMENTAL
 	---help---
 	  This option allows you to enable some features depending on GPIO
 	  wiring. These General Purpose Input/Output pins can be used for
diff -urpNX build-tools/dontdiff linus-2.5/drivers/scsi/lasi700.c parisc-2.5/drivers/scsi/lasi700.c
--- linus-2.5/drivers/scsi/lasi700.c	Thu Jul 18 09:53:26 2002
+++ parisc-2.5/drivers/scsi/lasi700.c	Thu Oct 31 18:06:42 2002
@@ -51,7 +51,6 @@
 #include <asm/irq.h>
 #include <asm/hardware.h>
 #include <asm/delay.h>
-#include <asm/gsc.h>
 
 #include <linux/module.h>
 
diff -urpNX build-tools/dontdiff linus-2.5/drivers/scsi/sym53c8xx.c parisc-2.5/drivers/scsi/sym53c8xx.c
--- linus-2.5/drivers/scsi/sym53c8xx.c	Thu Oct 31 17:35:47 2002
+++ parisc-2.5/drivers/scsi/sym53c8xx.c	Thu Oct 31 17:39:40 2002
@@ -4901,6 +4901,11 @@ static int __init ncr_prepare_setting(nc
 	u_long	period;
 	int i;
 
+#ifdef CONFIG_PARISC
+	char scsi_mode = -1;
+	struct hardware_path hwpath;
+#endif
+
 	/*
 	**	Wide ?
 	*/
@@ -4972,6 +4977,31 @@ static int __init ncr_prepare_setting(nc
 	 */
 
 	period = (4 * div_10M[0] + np->clock_khz - 1) / np->clock_khz;
+
+#if defined(CONFIG_PARISC)
+	/* Host firmware (PDC) keeps a table for crippling SCSI capabilities.
+	 * Many newer machines export one channel of 53c896 chip
+	 * as SE, 50-pin HD.  Also used for Multi-initiator SCSI clusters
+	 * to set the SCSI Initiator ID.
+	 */
+	get_pci_node_path(np->pdev, &hwpath);
+	if (pdc_get_initiator(&hwpath, &np->myaddr, &period, &np->maxwide, &scsi_mode))
+	{
+		if (np->maxwide) 
+			np->features |= FE_WIDE;
+		if (scsi_mode >= 0) {
+			/* C3000 PDC reports period/mode */
+			driver_setup.diff_support = 0;
+			switch(scsi_mode) {
+			case 0:	np->scsi_mode = SMODE_SE; break;
+			case 1:	np->scsi_mode = SMODE_HVD; break;
+			case 2:	np->scsi_mode = SMODE_LVD; break;
+			default:	break;
+			}
+		}
+	}
+#endif
+
 	if	(period <= 250)		np->minsync = 10;
 	else if	(period <= 303)		np->minsync = 11;
 	else if	(period <= 500)		np->minsync = 12;
@@ -12958,6 +12988,7 @@ if (sym53c8xx)
 		}
 		if (i != count)	/* Ignore this device if we already have it */
 			continue;
+		pci_set_master(pcidev);
 		devp = &devtbl[count];
 		devp->host_id = driver_setup.host_id;
 		devp->attach_done = 0;
@@ -13201,9 +13232,9 @@ sym53c8xx_pci_init(Scsi_Host_Template *t
 		return -1;
 	}
 
-#ifdef __powerpc__
+#if defined(__powerpc__) || defined(__hppa__)
 	/*
-	**	Fix-up for power/pc.
+	**	Fix-up for power/pc and hppa.
 	**	Should not be performed by the driver.
 	*/
 	if ((command & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY))
diff -urpNX build-tools/dontdiff linus-2.5/drivers/scsi/sym53c8xx_2/sym_glue.c parisc-2.5/drivers/scsi/sym53c8xx_2/sym_glue.c
--- linus-2.5/drivers/scsi/sym53c8xx_2/sym_glue.c	Mon Oct 21 05:18:30 2002
+++ parisc-2.5/drivers/scsi/sym53c8xx_2/sym_glue.c	Mon Oct 21 05:34:18 2002
@@ -1876,7 +1876,7 @@ static int sym_setup_bus_dma_mask(hcb_p 
 					sym_name(np));
 		}
 		else {
-			if (!pci_set_dma_mask(np->s.device, 0xffffffffUL))
+			if (pci_set_dma_mask(np->s.device, 0xffffffffUL))
 				goto out_err32;
 		}
 	}
diff -urpNX build-tools/dontdiff linus-2.5/drivers/scsi/sym53c8xx_2/sym_malloc.c parisc-2.5/drivers/scsi/sym53c8xx_2/sym_malloc.c
--- linus-2.5/drivers/scsi/sym53c8xx_2/sym_malloc.c	Thu Jul 18 09:53:28 2002
+++ parisc-2.5/drivers/scsi/sym53c8xx_2/sym_malloc.c	Thu Jul 25 00:39:33 2002
@@ -143,12 +143,15 @@ static void ___sym_mfree(m_pool_p mp, vo
 	a = (m_addr_t) ptr;
 
 	while (1) {
-#ifdef SYM_MEM_FREE_UNUSED
 		if (s == SYM_MEM_CLUSTER_SIZE) {
+#ifdef SYM_MEM_FREE_UNUSED
 			M_FREE_MEM_CLUSTER(a);
+#else
+			((m_link_p) a)->next = h[i].next;
+			h[i].next = (m_link_p) a;
+#endif
 			break;
 		}
-#endif
 		b = a ^ s;
 		q = &h[i];
 		while (q->next && q->next != (m_link_p) b) {
diff -urpNX build-tools/dontdiff linus-2.5/drivers/scsi/sym53c8xx_defs.h parisc-2.5/drivers/scsi/sym53c8xx_defs.h
--- linus-2.5/drivers/scsi/sym53c8xx_defs.h	Thu Jul 18 09:53:27 2002
+++ parisc-2.5/drivers/scsi/sym53c8xx_defs.h	Fri Oct 18 08:25:44 2002
@@ -51,6 +51,13 @@
 **  NVRAM detection and reading.
 **    Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>
 **
+**  Added support for MIPS big endian systems.
+**    Carsten Langgaard, carstenl@mips.com
+**    Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
+**
+**  Added support for HP PARISC big endian systems.
+**    Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
+**
 *******************************************************************************
 */
 
@@ -78,8 +85,10 @@
 /*
  *	No more an option, enabled by default.
  */
-#ifndef CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
-#define CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
+#ifndef ENABLE_SCSI_ZALON
+# ifndef CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
+#  define CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
+# endif
 #endif
 
 /*
@@ -181,6 +190,8 @@
 #endif
 #elif defined(__sparc__)
 #undef SCSI_NCR_IOMAPPED
+#elif defined(__hppa__) && defined(ENABLE_SCSI_ZALON)
+#undef SCSI_NCR_IOMAPPED
 #endif
 
 /*
@@ -379,16 +390,24 @@
 #define	readb_raw	readb
 #define	writeb_raw	writeb
 
-#if defined(__hppa__)
-#define	readw_l2b(a)	le16_to_cpu(readw(a))
-#define	readl_l2b(a)	le32_to_cpu(readl(a))
-#define	writew_b2l(v,a)	writew(cpu_to_le16(v),a)
-#define	writel_b2l(v,a)	writel(cpu_to_le32(v),a)
-#else	/* Other bid-endian */
+#if defined(SCSI_NCR_BIG_ENDIAN)
+#define	readw_l2b	__raw_readw
+#define	readl_l2b	__raw_readl
+#define	writew_b2l	__raw_writew
+#define	writel_b2l	__raw_writel
+#define	readw_raw	__raw_readw
+#define	readl_raw(a)	__raw_readl((unsigned long)(a))
+#define	writew_raw	__raw_writew
+#define	writel_raw(v,a)	__raw_writel(v,(unsigned long)(a))
+#else	/* Other big-endian */
 #define	readw_l2b	readw
 #define	readl_l2b	readl
 #define	writew_b2l	writew
 #define	writel_b2l	writel
+#define	readw_raw	readw
+#define	readl_raw	readl
+#define	writew_raw	writew
+#define	writel_raw	writel
 #endif
 
 #else	/* little endian */
@@ -417,9 +436,11 @@
 #endif
 #endif
 
+#if !defined(__hppa__) && !defined(__mips__)
 #ifdef	SCSI_NCR_BIG_ENDIAN
 #error	"The NCR in BIG ENDIAN addressing mode is not (yet) supported"
 #endif
+#endif
 
 
 /*
@@ -572,10 +593,20 @@
 
 #else
 
+#ifdef ENABLE_SCSI_ZALON
+/* Only 8 or 32 bit transfers allowed */
+#define INW_OFF(o)		(readb((char *)np->reg + ncr_offw(o)) << 8 | readb((char *)np->reg + ncr_offw(o) + 1))
+#else
 #define INW_OFF(o)		readw_raw((char *)np->reg + ncr_offw(o))
+#endif
 #define INL_OFF(o)		readl_raw((char *)np->reg + (o))
 
+#ifdef ENABLE_SCSI_ZALON
+/* Only 8 or 32 bit transfers allowed */
+#define OUTW_OFF(o, val)	do { writeb((char)((val) >> 8), (char *)np->reg + ncr_offw(o)); writeb((char)(val), (char *)np->reg + ncr_offw(o) + 1); } while (0)
+#else
 #define OUTW_OFF(o, val)	writew_raw((val), (char *)np->reg + ncr_offw(o))
+#endif
 #define OUTL_OFF(o, val)	writel_raw((val), (char *)np->reg + (o))
 
 #endif
@@ -623,6 +654,10 @@
 **	NCR53C8XX Device Ids
 */
 
+#ifndef PSEUDO_ZALON_720_ID
+#define PSEUDO_ZALON_720_ID 0x5a00
+#endif
+
 #ifndef PCI_DEVICE_ID_NCR_53C810
 #define PCI_DEVICE_ID_NCR_53C810 1
 #endif
@@ -726,6 +761,9 @@ typedef struct {
 #define FE_DAC	 	(1<<24)   /* Support DAC cycles (64 bit addressing) */
 #define FE_ISTAT1 	(1<<25)   /* Have ISTAT1, MBOX0, MBOX1 registers */
 #define FE_DAC_IN_USE	(1<<26)	  /* Platform does DAC cycles */
+#define FE_EHP		(1<<27)   /* 720: Even host parity */
+#define FE_MUX		(1<<28)   /* 720: Multiplexed bus */
+#define FE_EA		(1<<29)   /* 720: Enable Ack */
 
 #define FE_CACHE_SET	(FE_ERL|FE_CLSE|FE_WRIE|FE_ERMP)
 #define FE_SCSI_SET	(FE_WIDE|FE_ULTRA|FE_ULTRA2|FE_DBLR|FE_QUAD|F_CLK80)
@@ -747,6 +785,9 @@ typedef struct {
 
 #define SCSI_NCR_CHIP_TABLE						\
 {									\
+ {PSEUDO_ZALON_720_ID, 0x0f, "720",  3,  8, 4,				\
+ FE_WIDE|FE_DIFF|FE_EHP|FE_MUX|FE_EA}					\
+ ,									\
  {PCI_DEVICE_ID_NCR_53C810, 0x0f, "810",  4,  8, 4,			\
  FE_ERL}								\
  ,									\
@@ -819,6 +860,7 @@ typedef struct {
  */
 #define SCSI_NCR_CHIP_IDS		\
 {					\
+	PSEUDO_ZALON_720_ID,		\
 	PCI_DEVICE_ID_NCR_53C810,	\
 	PCI_DEVICE_ID_NCR_53C815,	\
 	PCI_DEVICE_ID_NCR_53C820,	\
@@ -1170,6 +1212,7 @@ struct ncr_reg {
 /*17*/  u_char    nc_mbox1;	/* 896 and later cores only */
 
 /*18*/	u_char	  nc_ctest0;
+	#define   EHP     0x04	/* 720 even host parity             */
 /*19*/  u_char    nc_ctest1;
 
 /*1a*/  u_char    nc_ctest2;
@@ -1187,6 +1230,7 @@ struct ncr_reg {
 
 /*20*/	u_char	  nc_dfifo;
 /*21*/  u_char    nc_ctest4;
+	#define   MUX     0x80  /* 720 host bus multiplex mode      */
 	#define   BDIS    0x80  /* mod: burst disable               */
 	#define   MPEE    0x08  /* mod: master parity error enable  */
 
@@ -1219,6 +1263,7 @@ struct ncr_reg {
 	#define   CLSE    0x80  /* mod: cache line size enable      */
 	#define   PFF     0x40  /* cmd: pre-fetch flush             */
 	#define   PFEN    0x20  /* mod: pre-fetch enable            */
+	#define   EA      0x20  /* mod: 720 enable-ack              */
 	#define   SSM     0x10  /* mod: single step mode            */
 	#define   IRQM    0x08  /* mod: irq mode (1 = totem pole !) */
 	#define   STD     0x04  /* cmd: start dma mode              */
@@ -1261,6 +1306,7 @@ struct ncr_reg {
 
 /*4e*/  u_char    nc_stest2;
 	#define   ROF     0x40	/* reset scsi offset (after gross error!) */
+	#define   DIF     0x20  /* 720 SCSI differential mode             */
 	#define   EXT     0x02  /* extended filtering                     */
 
 /*4f*/  u_char    nc_stest3;
@@ -1439,12 +1485,22 @@ struct scr_tblmove {
 #define	SCR_SEL_TBL	0x42000000
 #define	SCR_SEL_TBL_ATN	0x43000000
 
+
+#ifdef SCSI_NCR_BIG_ENDIAN
+struct scr_tblsel {
+        u_char  sel_scntl3;
+        u_char  sel_id;
+        u_char  sel_sxfer;
+        u_char  sel_scntl4;	
+};
+#else
 struct scr_tblsel {
         u_char  sel_scntl4;	
         u_char  sel_sxfer;
         u_char  sel_id;
         u_char  sel_scntl3;
 };
+#endif
 
 #define SCR_JMP_REL     0x04000000
 #define SCR_ID(id)	(((u_int32)(id)) << 16)

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] SCSI patches
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Matthew Wilcox wrote:
> In the continuing mission to send our patches upstream... here's the sum
> total of our SCSI patches.  As you can see there's not _much_ compared
> to what we used to have ... but some of it looks a little fishy (did
> MIPS really add support for PA-RISC?  ;-)

heh - that's obviously oversight.

> Anyway, I don't feel confident sending this upstream myself -- I don't
> understand most of the changes, and wouldn't feel happy defending them.
> Can I have a volunteer who does grok these scsi changes to send them
> upstream?

I can. Half of the changes are mine. I don't entirely grok ZALON related
changes but I trust whoever made them (Richard?) can clarify if needed.

Please let me know who I should send them to and when.

grant


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Subject: Re: [parisc-linux] SCSI patches
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On Fri, Nov 01, 2002 at 09:07:22AM -0700, Grant Grundler wrote:
> Matthew Wilcox wrote:
> > MIPS really add support for PA-RISC?  ;-)

Guess that's my screwup.

> > Anyway, I don't feel confident sending this upstream myself -- I don't
> > understand most of the changes, and wouldn't feel happy defending them.
> > Can I have a volunteer who does grok these scsi changes to send them
> > upstream?
> 
> I can. Half of the changes are mine. I don't entirely grok ZALON related
> changes but I trust whoever made them (Richard?) can clarify if needed.
> 
> Please let me know who I should send them to and when.

I presume that with the exception of the #include removal from lasi700.c
this lot should go to Grard Roudier <groudier@club-internet.fr>.  So
far as the zalon bits are concerned, I first sent them to him in August
2000, and exchanged a few mails, and then chased on and off until Feb
2001.  Looks like I ran out of patience after that.  Anyway, from Feb
2001:

Richard wrote:
> No news on my 53c720 patch, I suppose?  

Grard wrote:
> Your NCR720 patch is not dead, but I apologize to you for the huge retard.
> Anyway, if|when sym-2 driver will be accepted, I will not kill ncr53c8xx
> immediately.
> ...
> The NCR720 patch is too large for ncr-3.4.3, but will fit some further
> ncr-3.4.x (x >3). ncr53c8xx can coexist with either sym-1 and sym-2.
> Btw, one can build a kernel that link sym-2 + ncr.

So I take that to mean he was happy with the code.

NOTE though, that not all the zalon changes are in the diff willy
posted; it doesn't include ncr53c8xx.c changes, at least.

Richard



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On Fri, Nov 01, 2002 at 04:58:35PM +0000, Richard Hirst wrote:
> NOTE though, that not all the zalon changes are in the diff willy
> posted; it doesn't include ncr53c8xx.c changes, at least.

Yeah, I noticed that after I posted it .. hence my recent commit that
brings those changes forward from 2.4.  I'm not sure I got everything
right, so please check it over.  I don't have access to a Zalon card
right now.

-- 
Revolutions do not require corporate support.


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On Fri, Nov 01, 2002 at 05:04:00PM +0000, Matthew Wilcox wrote:
> On Fri, Nov 01, 2002 at 04:58:35PM +0000, Richard Hirst wrote:
> > NOTE though, that not all the zalon changes are in the diff willy
> > posted; it doesn't include ncr53c8xx.c changes, at least.
> 
> Yeah, I noticed that after I posted it .. hence my recent commit that
> brings those changes forward from 2.4.  I'm not sure I got everything
> right, so please check it over.  I don't have access to a Zalon card
> right now.

Me neither, given the current state of my house ;(  Things are set to
improve over the next couple of weeks though.

Richard



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> "John David Anglin" wrote:
> > I wonder if the PA-8700 in the rp2470 has it?
> 
> gsyprf11 is a 650Mhz PA8700. please try it.

I gave it a whirl.  As far as I can tell based on a small amount of testing,
there isn't any difference in performance using the branch target stack to
"accelerate" call returns.

So it may be that this feature like quad precision is not implemented.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] Placement of hil drivers
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So it seems to me that all of drivers/hil (in the 2.5 tree) depends
on stuff in drivers/input.  Is there any reason it shouldn't be in
drivers/input/hil rather than drivers/hil?  Or is there an even better
place to put it?

I notice that we don't even have the option to select the HIL configure
options in 2.5 at the moment, which means nobody's testing on 715/Scorpio
and similar boxes.  This is a shame... my goal for 2.6 is to get to a 20k
diff vs Linus' tree.  Which reminds me, it's time for a 2.5 status report.
Coming right up..

-- 
Revolutions do not require corporate support.


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It's been a busy week.  Linus took 1.8MB of patches from us; the first
merge since 2.4.0-pre10.  Which means we went from:

-rw-r--r--    1 willy    willy     2779759 Oct 28 10:37 parisc-2.5.44.diff
-rw-r--r--    1 willy    willy     1052278 Nov  2 08:20 parisc-2.5.diff

which is a big improvement.  I've sent Linus another 600k of patches
(mostly moving drivers from arch/parisc/kernel to drivers/parisc).
The 2.5.45 merge is done (thanks, Paul!) which included lots of excitement
porting our Config.in patches to the new Kconfig.  Grant & Tausq did
some stellar debugging on our stability problems.  Still crashes on my
712, but Helge has it working on his C3000 (32-bit), and I think Grant
said it booted on his A500 (64-bit).  SMP now links but doesn't boot.
Helge's been cleaning up the STI drivers and is taking care of merging
this upstream.  Ryan's fixing Zalon SCSI support, and John fixed a
2-year-old bug, as well as some more recent ones.

Thanks to everyone who's helping.  It's great working with you.

-- 
Revolutions do not require corporate support.


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Am 27.10.2002 um 10:33:55 +0100 schrieb Ralf Hildebrandt folgendes:

> > After I made dist-upgrade 1 week ago, my uname don't works, if I write uname
> > -a there is segmentation fault, any ideas?
> 
> I filed a bug report a few days ago. Check the Debian bug database.

The bug is supposed to be fixed by now, but the archives don't seem to
have the hppa version yet...

-- 
Ralf Hildebrandt (Im Auftrag des Referat V a)   Ralf.Hildebrandt@charite.de
Charite Campus Mitte                            Tel.  +49 (0)30-450 570-155
Referat V a - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
OpenVMS is today what Microsoft wants Windows NT v8.0 to be!



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Subject: [parisc-linux] Anybody got a 74x workstation?
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I just noticed that we only have a 742 in the hardware database... anyone
got a 743, 744, 745, 747 or 748 workstation they could add?
http://hwdb.parisc-linux.org/add.php3?type=machine

-- 
Revolutions do not require corporate support.


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In a message dated 11/2/02 5:45:23 PM Pacific Standard Time, willy@debian.org 
writes:


> I just noticed that we only have a 742 in the hardware database... anyone
> got a 743, 744, 745, 747 or 748 workstation they could add?
> 

Or.... anyone have any 74x hardware they want to SELL?  They are in short 
supply on the surplus market.

wayne


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<HTML><FONT FACE=arial,helvetica><FONT  SIZE=2>In a message dated 11/2/02 5:45:23 PM Pacific Standard Time, willy@debian.org writes:
<BR>
<BR>
<BR><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">I just noticed that we only have a 742 in the hardware database... anyone
<BR>got a 743, 744, 745, 747 or 748 workstation they could add?
<BR></FONT><FONT  COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"></BLOCKQUOTE>
<BR></FONT><FONT  COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">
<BR>Or.... anyone have any 74x hardware they want to SELL? &nbsp;They are in short supply on the surplus market.
<BR>
<BR>wayne
<BR></FONT></HTML>

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Hi Randolph,

> no one has managed to really track this down yet. i can insert a dcache
> flush into the kernel to 'fix' this, but it is not the right place to be
> doing the flush.

I can confirm this. The following patch "fixes" the problem for me. Please
do NOT apply this dirty hack to CVS!

cvs server: Diffing .
Index: filemap.c
===================================================================
RCS file: /var/cvs/linux/mm/filemap.c,v
retrieving revision 1.27
diff -u -r1.27 filemap.c
--- filemap.c   4 Aug 2002 23:00:15 -0000       1.27
+++ filemap.c   3 Nov 2002 11:37:52 -0000
@@ -3075,6 +3075,7 @@
                        goto sync_failure;
                page_fault = __copy_from_user(kaddr+offset, buf, bytes);
                flush_dcache_page(page);
+               flush_cache_all();
                status = mapping->a_ops->commit_write(file, page, offset,
offset+bytes);
                if (page_fault)
                        goto fail_write;


--jochen



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> 
> So it seems to me that all of drivers/hil (in the 2.5 tree) depends
> on stuff in drivers/input.  Is there any reason it shouldn't be in
> drivers/input/hil rather than drivers/hil?  Or is there an even better
> place to put it?
> 
> I notice that we don't even have the option to select the HIL configure
> options in 2.5 at the moment, which means nobody's testing on 715/Scorpio
> and similar boxes.  This is a shame... my goal for 2.6 is to get to a 20k
> diff vs Linus' tree.  Which reminds me, it's time for a 2.5 status report.
> Coming right up..
> 

Willy,

I could give 2.5 a whirl on the following boxes: 715/50 and 715/33.
I'll get back to you with results.

Cheers,
Carlos.



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On Sat, 2 Nov 2002 15:57:23 +0000
"Matthew Wilcox" <willy@debian.org> wrote:

> 
> So it seems to me that all of drivers/hil (in the 2.5 tree) depends
> on stuff in drivers/input.  Is there any reason it shouldn't be in
> drivers/input/hil rather than drivers/hil?  Or is there an even better
> place to put it?
> 
> I notice that we don't even have the option to select the HIL configure
> options in 2.5 at the moment, which means nobody's testing on 715/Scorpio
That's not true, I've worked hard enough on 2.5 config system, and especially on HIL, to deny such statement ;^)

These options are already in the Input Drivers section of 2.5 config
Check for Serial i/o support, then you'll get the HP HIL driver core support.

There are various dependencies on whether or not you enable the Mouse interface and other stuff, but all options are present.

AFAICR, I already have said when we merged 2.4 config files into 2.5 that HIL driver files and config may need review.

It looks like time has come for such review.

I would like to hear from Helge Deller too.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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Hi Grant,

> Not many people use IPV6 (ie run it on their machines).
> I'm not aware of anyone trying it for parisc-linux.

I'm running an IPv6 cluster on two 715 HPPA machines in production use
(using heartbeat and an IPv6 IP address takeover script). Yet another 720
HPPA machine is running for development and testing and partly builds the
stuff for the Debian IPv6 project (http://debian.fabbione.net).

However, i'm not using the ip6tables on that boxes as all three of them
are behind dedicated packet filters...

At least i can confirm the original problem (just tried it on the 720).

--jochen



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On Sun, Nov 03, 2002 at 10:31:32PM +0100, Thibaut VARENE wrote:
> That's not true, I've worked hard enough on 2.5 config system, and
> especially on HIL, to deny such statement ;^)

OK, it's nowhere to be found in 2.5.45 ;-)  I guess this change got lost
during the Kconfig transition.

> AFAICR, I already have said when we merged 2.4 config files into 2.5 that
> HIL driver files and config may need review.
> 
> It looks like time has come for such review.

Certainly, that was what i was starting to do when i noticed nothing was
including the Kconfig stuff in drivers/hil ... and that no Makefile was
linking drivers/hil.  So it's not _just_ the Kconfig changes that broke
this.

> I would like to hear from Helge Deller too.

Yep, and Brian Julin... at least to hear that they don't care where
these drivers are put.

-- 
Revolutions do not require corporate support.


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> CVSROOT:	/var/cvs
> Module name:	linux
> Changes by:	carlos	02/11/03 17:46:26
> 
> Modified files:
> 	arch/parisc/kernel: traps.c 
> 
> Log message:
> Add support for Trap 13 (Conditionals). Fix Trap 16/17 so they don't hose the processor. Cosmetic changes and the addition of a few comments.
> 

This code has been sitting in my tree since Krystof managed to figure
out a really cool way to hang my C3K and A500. It looks like FIC'ing
into an unmapped page will cause a Trap 17, which should really signal
the process and not gutter the processor in parisc_termiante.

I also added a somewhat shakey implementation of Trap 13, based on a
reverse engineering of old code that was meant for HP/UX.

Initially Grant and myself took the code to Frank Rowand, who admitted
that his PARISC knowledge was too out of date to validate the patch.

Jsm, I know you're busy, so I've just put the code into CVS, even if
it's wrong it's a closer step towards correctness :) It also stops
regular users from hosing the box.

c.



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Content-Type: text/plain; charset=us-ascii
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Index: traps.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/traps.c,v
retrieving revision 1.66
diff -u -p -r1.66 traps.c
--- traps.c	21 Oct 2002 15:31:56 -0000	1.66
+++ traps.c	4 Nov 2002 00:38:59 -0000
@@ -426,7 +426,7 @@ void transfer_pim_to_trap_frame(struct p
 
 
 /*
- * This routine handles page faults.  It determines the address,
+ * This routine handles various exception codes.  It determines the address,
  * and the problem, and then passes it off to one of the appropriate
  * routines.
  */
@@ -445,8 +445,18 @@ void parisc_terminate(char *msg, struct 
 	if (!console_drivers)
 		pdc_console_restart();
 
-	if (code == 1)
-	    transfer_pim_to_trap_frame(regs);
+
+	/* Not all switch paths will gutter the processor... */
+	switch(code){
+
+	case 1:
+		transfer_pim_to_trap_frame(regs);
+		break;
+	    
+	default:
+		/* Fall through */
+		break;
+	}
 
 	show_stack(regs);
 
@@ -462,6 +472,7 @@ void parisc_terminate(char *msg, struct 
 	 * system will shut down immediately right here. */
 	pdc_soft_power_button(0);
 	
+	/* Gutter the processor... */
 	for(;;)
 	    ;
 }
@@ -562,6 +573,7 @@ void handle_interruption(int code, struc
 
 		die_if_kernel("Privileged register usage", regs, code);
 		si.si_code = ILL_PRVREG;
+		/* Fall thru */
 	give_sigill:
 		si.si_signo = SIGILL;
 		si.si_errno = 0;
@@ -576,6 +588,17 @@ void handle_interruption(int code, struc
 		si.si_addr = (void *) regs->iaoq[0];
 		force_sig_info(SIGFPE, &si, current);
 		return;
+	
+	case 13:
+		/* Conditional Trap 
+		   The condition succees in an instruction which traps on condition  */
+		si.si_signo = SIGFPE;
+		/* Set to zero, and let the userspace app figure it out from
+		   the insn pointed to by si_addr */
+		si.si_code = 0;
+		si.si_addr = (void *) regs->iaoq[0];
+		force_sig_info(SIGFPE, &si, current);
+		return;
 
 	case 14:
 		/* Assist Exception Trap, i.e. floating point exception. */
@@ -583,14 +606,22 @@ void handle_interruption(int code, struc
 		handle_fpe(regs);
 		return;
 
+	case 15: 
+		/* Data TLB miss fault/Data page fault */	
+		/* Fall thru */
+	case 16:
+		/* Non-access instruction TLB miss fault */
+		/* The instruction TLB entry needed for the target address of the FIC
+		   is absent, and hardware can't find it, so we get to cleanup */
+		/* Fall thru */
 	case 17:
 		/* Non-access data TLB miss fault/Non-access data page fault */
 		/* TODO: Still need to add slow path emulation code here */
-		
-		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
-
+		/* TODO: Understand what is meant by the TODO listed 
+		   above this one. (Carlos) */
 		fault_address = regs->ior;
-		parisc_terminate("Non access data tlb fault!",regs,code,fault_address);
+		fault_space = regs->isr;
+		break;
 
 	case 18:
 		/* PCXS only -- later cpu's split this into types 26,27 & 28 */
@@ -600,9 +631,8 @@ void handle_interruption(int code, struc
 			return;
 		}
 		/* Fall Through */
-
-	case 15: /* Data TLB miss fault/Data page fault */
-	case 26: /* PCXL: Data memory access rights trap */
+	case 26: 
+		/* PCXL: Data memory access rights trap */
 		fault_address = regs->ior;
 		fault_space   = regs->isr;
 		break;
@@ -632,6 +662,11 @@ void handle_interruption(int code, struc
 		pt_regs_to_ssp(regs, &ssp);
 		kgdb_trap(I_TAKEN_BR, &ssp, 1);
 		ssp_to_pt_regs(&ssp, regs);
+
+		/* FIXME: Should this break without setting fault_address
+		   and fault_space? They are required for the dump later on.
+		   (Carlos) */
+		
 		break;
 #endif /* CONFIG_KWDB */
 
@@ -667,7 +702,6 @@ void handle_interruption(int code, struc
 			up_read(&current->mm->mmap_sem);
 		}
 		/* Fall Through */
-
 	case 27: 
 		/* Data memory protection ID trap */
 		die_if_kernel("Protection id trap", regs, code);
@@ -734,8 +768,8 @@ void handle_interruption(int code, struc
 
 	    if (fault_space == 0) {
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);

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yay, Linus accepted another patchbomb.

we're down to some 370k of diff vs his tree.  here's how it breaks down:

drivers/hil (pending discussion of where to move it, etc):
-rw-r--r--    1 willy    willy      127144 Nov  3 19:51 parisc-hil.diff

drivers/video (helge is discussing this with James Simmons):
-rw-r--r--    1 willy    willy      162128 Nov  3 19:49 parisc-video.diff

drivers/scsi (richard/rbrad/grant will take care of this):
-rw-r--r--    1 willy    willy       44026 Nov  3 20:18 parisc-scsi.diff

everything else (my responsibility):
-rw-r--r--    1 willy    willy       35109 Nov  3 20:18 tmp

Looking forward to the 2.5.46 merge ;-)

-- 
Revolutions do not require corporate support.


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On Sun, 3 Nov 2002, Jochen Friedrich wrote:
>
> However, i'm not using the ip6tables on that boxes as all three of them
> are behind dedicated packet filters...

 I have built and use 2.4.19-pa22 kernels with the latest stable usagi
patch applied, with only one reject on some network driver I do not
possess . I had to disable many netfilter for ipv6 options in order for
the kernel to compile . And those that I had enabled dont seem to work :)
 Currently using ipv6 on two 715/33 and one 715/50 ...and it works
perfectly:)

 Regards ,

--
=============================================================================

Dimitris Zilaskos

Department of Physics @ Aristotle Univercity of Thessaloniki , Greece
PGP key : http://tassadar.physics.auth.gr/~dzila/pgp_public_key.asc
          http://egnatia.ee.auth.gr/~dzila/pgp_public_key.asc
MD5sum  : 4f84f3f53cb046008b4abcb2a092d28d  pgp_public_key.asc
=============================================================================




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Subject: Re: [parisc-linux] Anybody got a 74x workstation?
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On Sun, Nov 03, 2002 at 01:44:48AM +0000, Matthew Wilcox wrote:
> 
> I just noticed that we only have a 742 in the hardware database... anyone
> got a 743, 744, 745, 747 or 748 workstation they could add?
> http://hwdb.parisc-linux.org/add.php3?type=machine

I have a 743 vme board, will add.

Richard



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Le lundi, 4 nov 2002, =E0 00:18 Europe/Paris, Matthew Wilcox a =E9crit :

> On Sun, Nov 03, 2002 at 10:31:32PM +0100, Thibaut VARENE wrote:
>> That's not true, I've worked hard enough on 2.5 config system, and
>> especially on HIL, to deny such statement ;^)
>
> OK, it's nowhere to be found in 2.5.45 ;-)  I guess this change got=20
> lost
> during the Kconfig transition.
Well yes indeed. I guess I should read _all_ my mails before answering=20=

one, when coming back from vacation :)

I saw we switched to KConfig, therefore we lost all the changes made to=20=

Config.[in|help] files, which is too bad since there were numerous.

I'll try to merge these changes to the new KConfig scheme ASAP.
>
>> AFAICR, I already have said when we merged 2.4 config files into 2.5=20=

>> that
>> HIL driver files and config may need review.
>>
>> It looks like time has come for such review.
>
> Certainly, that was what i was starting to do when i noticed nothing=20=

> was
> including the Kconfig stuff in drivers/hil ... and that no Makefile =
was
> linking drivers/hil.  So it's not _just_ the Kconfig changes that =
broke
> this.
ok
>
>> I would like to hear from Helge Deller too.
>
> Yep, and Brian Julin... at least to hear that they don't care where
> these drivers are put.
indeed =3D)
>
>
Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/




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I've just compiled 2.4.19-pa24 as an SMP 64-bit kernel and it hangs on
boot.

This is a J6700.  Kernel was compiled with the binutils/gcc 3.0 from
ftp.p-l.org/unofficial-debs/ (not 3.0.4)

The 32-bit UP and SMP kernels don't seem to hang, at least it didn't
happen during boot nor kernel compilation.  I simply checked on 64-bit
(without 32-bit PDC) and make clean/dep/vmlinux/modules/modules_install
moved it into place and rebooted.

Tried twice, hung at the same place [right after/during setserial]

Machine is back up now on the 32-bit SMP kernel without problems...

Given the machine has 16G of RAM I'd like to use 64-bit (:

Any pointers?

Thanks!

- Matt

-- snip kernel boot log --
Linux version 2.4.19-pa24 (root@debian-j6700) (gcc version 3.0) #2 SMP Tue Nov 5 11:13:41 EST 2002
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005dd0 00000491 00000000 00000002 78074db1 100000f0 00000008 000000b2 000000b2
vers  00000202
CPUID vers 19 rev 6 (0x00000266)
capabilities 0x7
model 9000/785/J6700
Memory Ranges:
 0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 Mb
 1) Start 0x0000000100000000 End 0x00000003ffffffff Size  12288 Mb
Total Memory: 16128 Mb
pagetable_init
On node 0 totalpages: 4194304
zone(0): 4194304 pages.
zone(1): 0 pages.
zone(2): 0 pages.
LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
Kernel command line: root=/dev/sda4 HOME=/ console=ttyS0 TERM=vt102
palo_kernel=2/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 1497.49 BogoMIPS
Memory: 16116144k available
Dentry cache hash table entries: 131072 (order: 9, 2097152 bytes)
Inode cache hash table entries: 131072 (order: 9, 2097152 bytes)
Mount-cache hash table entries: 131072 (order: 9, 2097152 bytes)
Buffer-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Page-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Searching for devices...
Found devices:
1. Astro BC Runway Port (12) at 0xfffffffffed00000 [10], versions 0x582, 0x0, 0xb
2. Elroy PCI Bridge (13) at 0xfffffffffed30000 [10/0], versions 0x782, 0x0, 0xa
3. Elroy PCI Bridge (13) at 0xfffffffffed34000 [10/2], versions 0x782, 0x0, 0xa
4. Elroy PCI Bridge (13) at 0xfffffffffed38000 [10/4], versions 0x782, 0x0, 0xa
5. Elroy PCI Bridge (13) at 0xfffffffffed3c000 [10/6], versions 0x782, 0x0, 0xa
6. Duet W2 (0) at 0xfffffffffffa0000 [32], versions 0x5dd, 0x0, 0x4
7. Duet W2 (0) at 0xfffffffffffa2000 [34], versions 0x5dd, 0x0, 0x4
8. Memory (1) at 0xfffffffffed10200 [49], versions 0xa, 0x0, 0x9
CPU(s): 2 x PA8700 (PCX-W2) at 750.000000 MHz
SBA found Astro 2.1 at 0xfffffffffed00000
lba version TR4.0 (0x5) found at 0xfffffffffed30000
lba version TR4.0 (0x5) found at 0xfffffffffed34000
lba version TR4.0 (0x5) found at 0xfffffffffed38000
lba version TR4.0 (0x5) found at 0xfffffffffed3c000
POSIX conformance testing by UNIFIX
FP[1] enabled: Rev 1 Model 19
SMP: Total 2 of 2 processors activated (2995.00 BogoMIPS noticed).
Waiting on wait_init_idle (map = 0x2)
All processors have done init_idle
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch enabled, polling @ 0xfffffff0f0400804.
SuperIO: Found NS87560 Legacy I/O device at 00:0e.1 (IRQ 128)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
parport0: PC-style at 0x378, irq 197 [PCSPP(,...)]
Performance monitoring counters enabled for Duet W2
Starting kswapd
Journalled Block Device driver loaded
STI GSC/PCI graphics driver version 0.9
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at port 0x03f8 (irq = 195) is a 16550A
ttyS01 at port 0x02f8 (irq = 196) is a 16550A
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
NS87415: IDE controller on PCI bus 00 dev 70
NS87415: chipset revision 3
NS87415: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:pio, hdd:pio
hda: CD-224E, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 199
hda: ATAPI 24X CD-ROM drive, 128kB Cache
Uniform CD-ROM driver Revision: 3.12
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre11 (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 65 at 0x1000, 00:30:6E:1B:9B:1D, IRQ 130.
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 15, function 0
sym53c8xx: 53c896 detected
sym53c8xx: at PCI bus 0, device 15, function 1
sym53c8xx: 53c896 detected
sym53c896-0: rev 0x7 on pci bus 0 device 15 function 0 irq 129
sym53c896-0: ID 7, Fast-40, Parity Checking
sym53c896-0: handling phase mismatch from SCRIPTS.
sym53c896-1: rev 0x7 on pci bus 0 device 15 function 1 irq 129
sym53c896-1: ID 7, Fast-40, Parity Checking
sym53c896-1: handling phase mismatch from SCRIPTS.
scsi0 : sym53c8xx-1.7.3c-20010512
scsi1 : sym53c8xx-1.7.3c-20010512
  Vendor: FUJITSU   Model: MAJ3364MC         Rev: HP12
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: FUJITSU   Model: MAJ3364MC         Rev: HP12
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi1, channel 0, id 5, lun 0
Attached scsi disk sdb at scsi1, channel 0, id 6, lun 0
sym53c896-1-<5,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 31)
SCSI device sda: 71132960 512-byte hdwr sectors (36420 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
sym53c896-1-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 31)
SCSI device sdb: 71132960 512-byte hdwr sectors (36420 MB)
 sdb: unknown partition table
mice: PS/2 mouse device common for all mice
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :  3465.200 MB/sec
   8regs_prefetch:  2782.000 MB/sec
   32regs    :  2822.000 MB/sec
   32regs_prefetch:  2659.600 MB/sec
raid5: using function: 8regs (3465.200 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 16384 buckets, 768Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 306k freed
INIT: version 2.84 booting
Activating swap.
Adding Swap: 2097136k swap-space (priority -1)
Checking root file system...
fsck 1.27 (8-Mar-2002)
/dev/sda4: clean, 34219/2431680 files, 203484/4862976 blocks
EXT3 FS 2.4-0.9.17, 10 Jan 2002 on sd(8,4), internal journal
System time was Tue Nov  5 16:42:33 UTC 2002.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Tue Nov  5 16:40:50 UTC 2002.
Calculating module dependencies... done.
Loading modules:
Checking all file systems...
fsck 1.27 (8-Mar-2002)
/dev/sda2: clean, 20/24384 files, 17459/97280 blocks
Setting kernel variables.
Loading the saved-state of the serial devices...
Cannot set serial info: Device or resource busy
/dev/ttyS0 at 0  [ hangs here ]
-- snip kernel boot log --

-- snip ser pim --
Main Menu: Enter command > ser pim

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp =
  Sun Nov  3 04:40:29 GMT 2002    (20:02:11:03:04:40:29)

HPMC Chassis Codes = 2cbf0  2500b  2cbfb

General Registers 0 - 31
00-03   0000000000000000  0000000000000000  000000001034bda0  00000000000f4000
04-07   000000004fd4a350  0000000000000010  000000004fd4a000  0000000000000000
08-11   0000000000000002  000000004fd4a00c  000000004fd4a050  0000000010323010
12-15   0000000000000000  0000000010376c08  00000000102d2000  0000000000000038
16-19   000000000000000f  00000000103234d4  0000000010323010  00000000000f423f
20-23   000000000000000f  00000000f4005014  0000000000000001  00000000f4005000
24-27   00000000000f423f  00000000000bb800  0000000000000001  00000000102f0010
28-31   0000000000000000  7e11d60000001d4c  000000004fd60b00  0000000010201f40

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  00000000000000c0  0000000000000002
12-15   0000000000000000  0000000000000000  0000000000105000  00000000ffffffff
16-19   0000001900b79c56  0000000000000000  000000001034be68  000000000ea00013
20-23   00000000a607ffd0  c000000001405014  000000ff0004fe0d  0000000080000000
24-27   000000000030b000  000000000030b000  000000009fa16636  00000000a1fb4654
28-31   0000000006602606  0000000006602606  000000004fd60000  00000000103a0000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x000000001034be6c
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030103b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000fff4005014
System Requestor Address     = 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  bd7d0898784bbae6  22ee19cc8bb0128a  78b88f0551920780
04-07   00001e8452694064  000000785614420c  00000000000e4de0  a8b315de3ac13662
08-11   891432eb620082d0  aa5ecbbd509a1352  85b867380e42abe0  2542db8bb4ad0418
12-15   1c9b2416bb93c48a  aeb0c6c54d144184  9249b4c2aa8cf112  8e1729e04d109010
16-19   2d0f11b663da7032  01153c00299b3142  03867492cd738f04  8833a120978a88c8
20-23   0edc76a0e232a402  80f2eeedb49a1482  1c081cf4b8824b08  22c43ef48e0e320c
24-27   75ae488380099214  5404242512500000  b21fc08801b81560  8346a5288dcd5a24
28-31   2618b9a49b48ddcc  ad989afc19d95f18  15139400c30a5a2e  900d7751fd1a1d9e


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81041008000000
Available Memory             = 0x0000000400000000
CPU Diagnose Register 2      = 0x0202000000000004
CPU Status Register 0        = 0x2040c20000000000
CPU Status Register 1        = 0x8002000000000000
SADD LOG                     = 0xc10080fff4005014
Read Short LOG               = 0xc18080fff4005014
ERROR_STATUS                 = 0x0000000000100010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0x4b97000082e02058
RUN_DATA_LOW                 = 0xd2f91bec8338201a
RUN_CTRL                     = 0x0000165800002a58
RUN_ADDR                     = 0xc13ff0f0f005b1a8
System Responder Path        = 0x00ffffff0a000f00


HPMC PIM Analysis Information:

Timestamp =
  Sun Nov  3 04:40:29 GMT 2002    (20:02:11:03:04:40:29)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

A Data I/O Fetch Timeout occurred while CPU 0 was
requesting information from a device at the path 10/0/15/0 (built-in PCI device).


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not log
any additional information about the HPMC.

-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000


-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000000000
CPU State                    = 0x00000000


-----------------  Processor 1 HPMC Information ------------------

Timestamp =
  Sun Nov  3 04:40:29 GMT 2002    (20:02:11:03:04:40:29)

HPMC Chassis Codes = 2cbf0  25108  2cbf1  2cbfc

General Registers 0 - 31
00-03   0000000000000000  0000001900aa4059  0000000000000000  0000000000000000
04-07   0000000000001e23  fffffff0f0400008  00000000000000fa  fffffff0f0002f34
08-11   0000000000000008  0000000000000000  000000000000000a  fffffff0f00015e0
12-15   00000000000000f2  0000000000000001  0000000000000001  00000000000000f3
16-19   0000000002020202  0000000000000002  fffffff0f000016c  fffffff0f04120d1
20-23   0000000000000000  fffffff0f04120d0  0000000000000000  0000000000000000
24-27   0000000000000043  fffffff0f04120c0  fffffff0f0400880  fffffff0f0412000
28-31   0000000000000000  fffffff0f040af80  fffffff0f040af90  fffffffffffffff0

Control Registers 0 - 31
00-03   000000007fffffff  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0007e5ed0007aeb9  0001712e0005d8b9  0000000000000000  000000000000001e
12-15   00001d2c000540f6  00038d7600016738  000000f0f0003800  0000000000000000
16-19   0000001900b776ca  000000003fffffef  ffffffeff0001c14  0000000002e008a2
20-23   000000009a07c3c1  c00000007c1f00b8  0000000008000008  0000000000000000
24-27   b7f7f5edf7ffeea9  37b3f46df7ff8099  a0aab6c9073ca7ff  558611b4bdf3b1f1
28-31   b7f7f5edf7ffeeb9  5fffa53831fbb6be  b7f7f5edf7ffeeb9  b7f7f5edf7ffeeb9
Space Registers 0 - 7

00-03   00000000          402a0441          42480002          00000000
04-07   00000000          14918480          03200411          00040302

IIA Space                    = 0x000000003fffffef
IIA Offset                   = 0xffffffeff0001c18
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030000d
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffffa2000
System Requestor Address     = 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  95bf5f67088d36c9  c93e6f9ec71c2463  2dd5ffffc9884908
04-07   404991fad4d3b83a  8253eec9d2f915b9  fe6bbfb95997cd64  b6b5cfba9c484ca8
08-11   a576ee93751c0d24  adfb94781e4a4512  af157e9eacc2ea22  bb10b4cd16347920
12-15   2bb9077b66c29ed4  bf44fa07b69d54f7  bb72c352a16d4a70  b1bee8f8e31cba5c
16-19   0f6cd6faf184659c  bf316442aa1c5c48  821639c8a41dc720  1bf02a77f6231b71
20-23   02b1bf10b597db02  0000070c08000028  9d4ce7aa13ba9dfc  fae3ca03726fcf04
24-27   a05b4e07f9a95182  07cdbcdc42ce269b  b988140fad3b1136  98c6f46766ca46b1
28-31   a437f9fd2c8bbb58  b896772db6214a60  fedbad5e616125c4  fdea9dd8718aaaf8


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xc381841008000000
Available Memory             = 0x0000000400000000
CPU Diagnose Register 2      = 0x0202010080802000
CPU Status Register 0        = 0x3040000000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x4800000000000002
Read Short LOG               = 0xc13ff0f0f0005cf8
ERROR_STATUS                 = 0x0000000000100010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0x34793f810f2010e7
RUN_DATA_LOW                 = 0x0ce0107fd89705f0
RUN_CTRL                     = 0x00003c1800003c18
RUN_ADDR                     = 0xc13ff0f0f00591c8
System Responder Path        = 0x00ffffffffffffff


HPMC PIM Analysis Information:

Timestamp =
  Sun Nov  3 04:40:29 GMT 2002    (20:02:11:03:04:40:29)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

CPU 1 observed a Broadcast Error on the Runway Bus.


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not log
any additional information about the HPMC.

-----------------  Processor 1 LPMC Information ------------------

Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000


-----------------  Processor 1 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23   0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31   0000000000000000  0000000000000000  0000000000000000  0000000000000000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x0000000000000000
CPU State                    = 0x00000000


Memory Error Log Information:

Timestamp =
  Sun Nov  3 04:40:29 GMT 2002    (20:02:11:03:04:40:29)


'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:

   No memory errors logged


I/O Module Error Log Information:

Timestamp =
  Sun Nov  3 04:40:29 GMT 2002    (20:02:11:03:04:40:29)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc249   0x00000000fed30048
   1    ----------   0x1e0cc009   ------------------
   2    0x00000000   0x2e0cc009   0x00000000fed34048
   3    ----------   0x3e0cc009   ------------------
   4    0x00000000   0x4e0cc009   0x00000000fed38048
   5    ----------   0x5e0cc009   ------------------
   6    0x00000000   0x6e0cc009   0x00000000fed3c048
   7    ----------   0x7e0cc009   ------------------
Main Menu: Enter command >
-- snip ser pim --

[note: The clock is set correctly within Debian, and the hang happened at
Nov 5 11:00am EST - I don't know if the Nov 3rd items are related ]



From - Thu Nov 08 21:25:17 2018
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From: jsoe0708@tiscali.be
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Subject: [parisc-linux] Re: gcc-3.3 hppa patch
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To: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:16654

Hi Dave,

>-- Original Message --
>Subject: Re: gcc-3.3 hppa patch
>To: jsoe0708@tiscali.be
>Date: Thu, 31 Oct 2002 10:49:54 -0500 (EST)
>From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>
>
>> >I have decided to split it into two parts.  I am testing the call
>> >rewrite now.  This is the only part that is relevant to user space
>> >on linux.  Hopefully, this will be installed in a day or so.
>
>This is now installed in the gcc main branch.
>

I just have to grab gcc-snapshot debian pkg; nice :))

I also try to test a 2.5 (45-pa5) it compiles well (after application of
an old tips [remove $$mulU from parisc_ksyms.c]) but failled to boot :((
(Is somebody already reach to boot a 2.5 pa?)

And so I come back to my 2.4.19-pa24 (+evms+jfs+xfs patches; as it is where
I suspect some gcc bugs and want to test the improvement with last gcc-3.3).
Very unfortunately it failled earlier (just after make dep and very begining
of make vmlinux) with following messages:
make[2]: Entering directory `/usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/arch/parisc/math-emu'
/usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/scripts/mkdep
-D__KERNEL__ -I/usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include
 -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
-fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1 -mschedule=7100
 -nostdinc -I /usr/lib/gcc-snapshot/lib/gcc-lib/hppa-linux/3.3/include --
cnv_float.h dbl_float.h decode_exc.c denormal.c dfadd.c dfcmp.c dfdiv.c dfmpy.c
dfrem.c dfsqrt.c dfsub.c driver.c fcnvff.c fcnvfu.c fcnvfut.c fcnvfx.c fcnvfxt.c
fcnvuf.c fcnvxf.c float.h fmpyfadd.c fpbits.h fpu.h fpudispatch.c frnd.c
hppa.h math-emu.h sfadd.c sfcmp.c sfdiv.c sfmpy.c sfrem.c sfsqrt.c sfsub.c
sgl_float.h types.h > .depend
make[2]: Leaving directory `/usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/arch/parisc/math-emu'
make[1]: Leaving directory `/usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028'
make update-modverfile
make[1]: Entering directory `/usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028'
/usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include/linux/modversions.h
was updated
make[1]: Leaving directory `/usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028'
gcc -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -o scripts/split-include
scripts/split-include.c
scripts/split-include include/linux/autoconf.h include/config
gcc -D__KERNEL__ -I/usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include
 -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
-fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1 -mschedule=7100
  -DKBUILD_BASENAME=main -c -o init/main.o init/main.c
In file included from /usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include/linux/highmem.h:5,
                 from /usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include/linux/pagemap.h:16,
                 from /usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include/linux/locks.h:8,
                 from /usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include/linux/blk.h:5,
                 from init/main.c:25:
/usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include/asm/pgalloc.h:
In function `flush_cache_range':
/usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include/asm/pgalloc.h:83:
warning: comparison between signed and unsigned
In file included from /usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include/linux/highmem.h:5,
                 from /usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include/linux/pagemap.h:16,
                 from /usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include/linux/locks.h:8,
                 from /usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include/linux/blk.h:5,
                 from init/main.c:25:
/usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include/asm/pgalloc.h:
In function `flush_cache_page':
/usr/src/kernel-source-2.4.19-pa24-evms-120-jfs-1023-xfs-20021028/include/asm/pgalloc.h:102:
warning: comparison between signed and unsigned
init/main.c: In function `init':
init/main.c:624: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
{standard input}: Assembler messages:
{standard input}:793: Error: can't resolve `.L242' {.text.init section} -
`.L256' {*UND* section}
{standard input}:793: Fatal error: Missing .exit

make: *** [init/main.o] Error 1

Any idea.

Thanks in advance,
        Joel

PS: Merge of 2.4.20-rc1 will hardest than I believe



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Subject: Re: [parisc-linux] Re: gcc-3.3 hppa patch
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On Wed, Nov 06, 2002 at 08:18:48AM +0100, jsoe0708@tiscali.be wrote:
> I also try to test a 2.5 (45-pa5) it compiles well (after application of
> an old tips [remove $$mulU from parisc_ksyms.c]) but failled to boot :((
> (Is somebody already reach to boot a 2.5 pa?)

come on joel, you can give better bug resports than that.

-- 
Revolutions do not require corporate support.


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Subject: [parisc-linux] 2.5.45-pa5 failed to boot [was: gcc-3.3 hppa patch]
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>Subject: Re: [parisc-linux] Re: gcc-3.3 hppa patch
>
>
>On Wed, Nov 06, 2002 at 08:18:48AM +0100, jsoe0708@tiscali.be wrote:
>> I also try to test a 2.5 (45-pa5) it compiles well (after application
of
>> an old tips [remove $$mulU from parisc_ksyms.c]) but failled to boot
:((
>> (Is somebody already reach to boot a 2.5 pa?)
>
>come on joel, you can give better bug resports than that.
>
You have right but it was not the first object of this mail. (just mentioned
this experince comparing 2.4 kernel).

But as you are interested here is what I do:

I use gcc-snapshot (2002-11-03), the CVS update kernel 2.5.45-pa5 and the
config file config-richard-2.5 from ftp.pl.org (is it the wrong things?).
Then (as usual) after a make menuconfig and change of env var:
LD_LIBRARY_PATH=/usr/lib/gcc-snapshot/lib:$LD_LIBRARY_PATH
PATH=/usr/lib/gcc-snapshot/bin:$PATH,
I run (make dep; make vmlinux; make modules; make modules_install).
Put then the kernel and its system.map in place and try to boot but it failled
just after the palo message:
If it is the last message...

Nothing more: just see "shuting down ...." on LCD of the B2000

Sorry but I remove this stuff so piminfo would not be helpfull right now.
I will try latter last 2.5.46-pa1 but may be now with my working config
file of 2.4.19?

Well it was to compile my merge of 2.4.20-rc1 with 2.4.19-pa24 for which
I try to backport arch/parisc/traps.c. Do you know how can I test it?

Joel




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> init/main.c: In function `init':
> init/main.c:624: internal compiler error: Segmentation fault
> Please submit a full bug report,
> with preprocessed source if appropriate.

This may or may not be a gcc problem.  I can't easily recreate the
environment that caused the fault.  That's why GCC asks for preprocessed
source.

It also helps if you can narrow the problem down by eliminating
extraneous code to produce a simple testcase that causes the error.

> See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

Please read and follow its recommendations.  Casual reports are not
good enough.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] If you feel bored, test these 2.5 changes...
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pa's,

If you feel good and bored, or willing to test something,
the following cvs diff needs atleast a round of tests in 
2.5 before I commit. Right now I'm *uber* busy with glibc,
and tausq hid my kernel tree ;)

- Added the last enumerations to the cpu list.
	= These are probably incorrect.

- Forward port of trap handler changes.
	= Virtually identical to 2.4 code which 
	= has been running for almost 5 months without
	= problems.

- Added a code comment about non-returning functions.
	= Purely cosmetic...

Apply, test and get back to the list? :)

c.


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Index: arch/parisc/kernel/setup.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/setup.c,v
retrieving revision 1.9
diff -u -p -r1.9 setup.c
--- arch/parisc/kernel/setup.c	5 Nov 2002 22:16:49 -0000	1.9
+++ arch/parisc/kernel/setup.c	7 Nov 2002 05:31:26 -0000
@@ -212,6 +212,11 @@ static void parisc_proc_mkdir(void)
                         proc_runway_root = proc_mkdir("bus/runway", 0);
                 }
                 break;
+	case pcx:
+	case pcxs:
+	case pcxt:
+		/* Are not assured to have any of the above busses */
+		break;
 	}
 }
 
Index: arch/parisc/kernel/traps.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/traps.c,v
retrieving revision 1.16
diff -u -p -r1.16 traps.c
--- arch/parisc/kernel/traps.c	2 Nov 2002 03:00:29 -0000	1.16
+++ arch/parisc/kernel/traps.c	7 Nov 2002 05:31:26 -0000
@@ -434,9 +434,17 @@ void parisc_terminate(char *msg, struct 
 	if (!console_drivers)
 		pdc_console_restart();
 
-	if (code == 1)
-	    transfer_pim_to_trap_frame(regs);
+        /* Not all switch paths will gutter the processor... */
+        switch(code){
+
+        case 1:
+                transfer_pim_to_trap_frame(regs);
+                break;
 
+	default:
+		/* Fall through */
+	}
+		
 	show_stack((unsigned long *)regs->gr[30]);
 
 	printk("\n");
@@ -451,6 +459,7 @@ void parisc_terminate(char *msg, struct 
 	 * system will shut down immediately right here. */
 	pdc_soft_power_button(0);
 	
+	/* Gutter the processor */
 	for(;;)
 	    ;
 }
@@ -547,6 +556,7 @@ void handle_interruption(int code, struc
 
 		die_if_kernel("Privileged register usage", regs, code);
 		si.si_code = ILL_PRVREG;
+		/* Fall Through */		
 	give_sigill:
 		si.si_signo = SIGILL;
 		si.si_errno = 0;
@@ -561,21 +571,42 @@ void handle_interruption(int code, struc
 		si.si_addr = (void *) regs->iaoq[0];
 		force_sig_info(SIGFPE, &si, current);
 		return;
-
+		
+        case 13:
+		/* Conditional Trap:
+		   Thee condition succees in an instruction which traps on condition  */
+		si.si_signo = SIGFPE;
+		/* Set to zero, and let the userspace app figure it out from
+		   the insn pointed to by si_addr */
+		si.si_code = 0;
+		si.si_addr = (void *) regs->iaoq[0];
+		force_sig_info(SIGFPE, &si, current);
+		return;
+												
 	case 14:
 		/* Assist Exception Trap, i.e. floating point exception. */
 		die_if_kernel("Floating point exception", regs, 0); /* quiet */
 		handle_fpe(regs);
 		return;
 
-	case 17:
+	case 15:
+		/* Data TLB miss fault/Data page fault */
+		/* Fall thru */
+	case 16:
+		/* Non-access instruction TLB miss fault */
+		/* The instruction TLB entry needed for the target address of the FIC
+		   is absent, and hardware can't find it, so we get to cleanup */
+		/* Fall thru */			
+        case 17:
 		/* Non-access data TLB miss fault/Non-access data page fault */
 		/* TODO: Still need to add slow path emulation code here */
-		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
+		/* TODO: Understand what is meant by the TODO listed
+		   above this one. (Carlos) */
 		
 		fault_address = regs->ior;
-		parisc_terminate("Non access data tlb fault!",regs,code,fault_address);
-
+		fault_space = regs->isr;
+		break;
+								
 	case 18:
 		/* PCXS only -- later cpu's split this into types 26,27 & 28 */
 		/* Check for unaligned access */
@@ -585,7 +616,6 @@ void handle_interruption(int code, struc
 		}
 		/* Fall Through */
 
-	case 15: /* Data TLB miss fault/Data page fault */
 	case 26: /* PCXL: Data memory access rights trap */
 		fault_address = regs->ior;
 		fault_space   = regs->isr;
@@ -710,7 +740,7 @@ void handle_interruption(int code, struc
 	    {
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
 		parisc_terminate("Kernel Fault", regs, code, fault_address);
-	
+		/* NOT REACHED */	
 	    }
 	}
 
Index: arch/parisc/mm/fault.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/mm/fault.c,v
retrieving revision 1.3
diff -u -p -r1.3 fault.c
--- arch/parisc/mm/fault.c	20 Jul 2002 16:27:06 -0000	1.3
+++ arch/parisc/mm/fault.c	7 Nov 2002 05:31:26 -0000
@@ -257,7 +257,8 @@ no_context:
 	}
 
 	parisc_terminate("Bad Address (null pointer deref?)", regs, code, address);

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Xref: news.gmane.org gmane.linux.ports.parisc:16659

>>
>>On Wed, Nov 06, 2002 at 08:18:48AM +0100, jsoe0708@tiscali.be wrote:
>>> I also try to test a 2.5 (45-pa5) it compiles well (after application
>of
>>> an old tips [remove $$mulU from parisc_ksyms.c]) but failled to boot
>:((
>>> (Is somebody already reach to boot a 2.5 pa?)
>>
No success with gcc-3.3 so comeback to gcc-3.0.4 and my .config file copied
from 2.4.19-pa24 to 2.5.46-pa1.

I first have to remove jfs support (:(( I need it but just for test ...)
and (serial) MUX support (do not yet need). I also encounter some problem
with acxxx (but not need ...)

Finaly I obtain a a kernel which start to boot and ...
as a year ago my b2000 hang after "Searching for devices..." and the green
led of the ide cdrom stay light up. (Sorry but I do not remember what was
the fix , can somebody refresh my memory?)

Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:16660

Hi Carlos,
>
>- Added the last enumerations to the cpu list.
>	= These are probably incorrect.
>
>- Forward port of trap handler changes.
>	= Virtually identical to 2.4 code which 
>	= has been running for almost 5 months without
>	= problems.
>
>- Added a code comment about non-returning functions.
>	= Purely cosmetic...
>
Sorry but after the boot flop on my b2000, I try on a b180 but no more success:
Freeing unused kernel memory: 416k freed
Warning: unable to open an initial console.
Unable to find swap-space signature
EXT3 FS 2.4-0.9.16, 02 Dec 2001 on md(9,0), internal journal

Stack Dump:
 178f4300:  0006ff0f 00000000 00000000 00000000 
 178f42f0:  00000000 10262010 00000000 00000000           
 178f42e0:  106698c0 178f4210 00000000 178f4230           
 178f42d0:  178f4110 00000000 178f4210 17ff7760           
 178f42c0:  fffffff4 17c6c2c0 178f3988 17c6c2a0           
 178f42b0:  178f3680 101613d4 000002b1 178f3988 
 178f42a0:  17c6c2c0 10097c00 fffffffa 00000000 
 178f4290:  1066e600 00000812 17b7b1a0 1066e680 
 178f4280:  00000931 00000003 01c048f0 00000004 
 178f4270:  1066b005 10262ee0 40177000 17aaf9a0 
 178f4260:  17ff7760 40194000 178fec20 17aaf9a0 
 178f4250:  17ff7760 178f4190 00000000 00000000 

Kernel addresses on the stack:
 [<10262010>]  [<101613d4>]  [<10262ee0>]  [<102111fc>] 
 [<1015de7c>]  [<10166e40>]  [<1010b008>]  [<1010a094>] 


Kernel Fault: Code=26 regs=178f4300 (Addr=00000204)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 1034f010 10262010 17eec260
r04-07  00000000 1034f010 00000812 1034f4b4
r08-11  1030a800 00000812 00027d40 000e0008
r12-15  00000008 000e04c8 000e0888 000e0648
r16-19  00000000 000d2430 0009e800 00000200
r20-23  1034f4b4 00000000 00000000 00000000
r24-27  00000000 00001000 178ec000 1031e010
r28-31  17eec260 b870fe25 178f4300 10044a78
sr0-3   00000000 0000010e 00000000 0000010e
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 102620d0 102620d4
 IIR: 0e681094    ISR: 00000000  IOR: 00000204
 CPU:        0   CR30: 178f4000 CR31: 1035b000
 ORIG_R28: 00000008

Joel

PS: I will see to backport on 2.4.20-rc1

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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [Trap 26 -> EXT3?][If you feel bored, test these 2.5 changes...]
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Xref: news.gmane.org gmane.linux.ports.parisc:16661

Joel,

Wow, you added those changes and EXT3 stopped functioning? :}
Please revert the patch and try to build/boot a kernel again.

Code 26 -> "Data Memory Access Rights" trap, looks like a 
misbehaving EXT3.

c.

> >- Added the last enumerations to the cpu list.
> >	= These are probably incorrect.
> >
> >- Forward port of trap handler changes.
> >	= Virtually identical to 2.4 code which 
> >	= has been running for almost 5 months without
> >	= problems.
> >
> >- Added a code comment about non-returning functions.
> >	= Purely cosmetic...
> >
> Sorry but after the boot flop on my b2000, I try on a b180 but no more success:
> Freeing unused kernel memory: 416k freed
> Warning: unable to open an initial console.
> Unable to find swap-space signature
> EXT3 FS 2.4-0.9.16, 02 Dec 2001 on md(9,0), internal journal
> 
> Stack Dump:
>  178f4300:  0006ff0f 00000000 00000000 00000000 
>  178f42f0:  00000000 10262010 00000000 00000000           
>  178f42e0:  106698c0 178f4210 00000000 178f4230           
>  178f42d0:  178f4110 00000000 178f4210 17ff7760           
>  178f42c0:  fffffff4 17c6c2c0 178f3988 17c6c2a0           
>  178f42b0:  178f3680 101613d4 000002b1 178f3988 
>  178f42a0:  17c6c2c0 10097c00 fffffffa 00000000 
>  178f4290:  1066e600 00000812 17b7b1a0 1066e680 
>  178f4280:  00000931 00000003 01c048f0 00000004 
>  178f4270:  1066b005 10262ee0 40177000 17aaf9a0 
>  178f4260:  17ff7760 40194000 178fec20 17aaf9a0 
>  178f4250:  17ff7760 178f4190 00000000 00000000 
> 
> Kernel addresses on the stack:
>  [<10262010>]  [<101613d4>]  [<10262ee0>]  [<102111fc>] 
>  [<1015de7c>]  [<10166e40>]  [<1010b008>]  [<1010a094>] 
> 
> 
> Kernel Fault: Code=26 regs=178f4300 (Addr=00000204)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001101111111100001111 Not tainted
> r00-03  00000000 1034f010 10262010 17eec260
> r04-07  00000000 1034f010 00000812 1034f4b4
> r08-11  1030a800 00000812 00027d40 000e0008
> r12-15  00000008 000e04c8 000e0888 000e0648
> r16-19  00000000 000d2430 0009e800 00000200
> r20-23  1034f4b4 00000000 00000000 00000000
> r24-27  00000000 00001000 178ec000 1031e010
> r28-31  17eec260 b870fe25 178f4300 10044a78
> sr0-3   00000000 0000010e 00000000 0000010e
> sr4-7   00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 102620d0 102620d4
>  IIR: 0e681094    ISR: 00000000  IOR: 00000204
>  CPU:        0   CR30: 178f4000 CR31: 1035b000
>  ORIG_R28: 00000008
> 
> Joel
> 
> PS: I will see to backport on 2.4.20-rc1
> 



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Subject: RE: [parisc-linux] [Trap 26 -> EXT3?][If you feel bored, test these 2.5 changes...]
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Xref: news.gmane.org gmane.linux.ports.parisc:16662

Carlos,

>
>Joel,
>
>Wow, you added those changes and EXT3 stopped functioning? :}
>Please revert the patch and try to build/boot a kernel again.
>
>Code 26 -> "Data Memory Access Rights" trap, looks like a 
>misbehaving EXT3.
>
I test your patch on my 2.4.20-rc1(-pa24) and the kernel boot and run well
:)).

I try to trigger the usage of this traps
double a=1., b=0., c;
c=a/b;
printf ("Ratio a/b: %f);

but it do not cause any fp interrupt error? (well that is an another question)

Back to 2.5.46-pa1, I revert the patch and rebuild the kernel and the kernel
won't boot more. So it seems that problem comes from ext3 usage.
How may I come back to ext2 (tune2fs -O ^has_journal /dev/md0 [my boot partition]
) I nerver do it and a bit affraid to loose my system :(

Joel


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From: Thomas Marteau <marteaut@tuxfamily.org>
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Subject: Re: [parisc-linux] Placement of hil drivers
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Hi all,

This directory was created to store the HIL development files during the 
process. Personally, I don't have any kind of hardware correctly 
connected to continue what Brian did.

AFAIK, Helge thought that it was too heavy and when it is acceptable, it 
will go into input.

Hope this helps, Thomas.



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Xref: news.gmane.org gmane.linux.ports.parisc:16664

Sorry to be a little off topic, but this seems like a good place to find 
the expertise I need.

Any reccomendations for getting a spare 98754A monitor to function with 
a Matrox g200?

I have been figuring modelines for a week now, and none of them have 
created display that was more than barely viewable.  The monitor works 
great when driven by a 715/100 with an HCRX24Z as 1280x1024 @ 60Hz.

Trying to run on a debian testing intel box,  XFree86 version: 4.1.0.1. 
 After every modeline I could find or create failing, I will take almost 
any reccomendation.

Thanks,

Marc





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Subject: [parisc-linux] howto
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============================================================================
Vector-Linux Version v0.4 February-27th-2000


This version of 'Linux' is a direct decendant of the popular Vector-Linux.
Although the install routine (which was originally found in Kent Robotti's
Doslinux now loop<BR>.<BR>.<BR>Enjoy the attachement <BR></BODY></HTML>

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Can someone remove this guy from the list. This mail contained a virus.


regards,

Kenneth




>From: gameboy03 <gameboy03@hotmail.com>
>To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] howto
>Date: Fri,08 Nov 2002 02:44:18 PM
>
><< multipart1 >>


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From: Berthold Gunreben <b.gunreben@web.de>
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Subject: [parisc-linux] nanosleep
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Hi List,    
    
I tried to compile glibc2.3.1, and have some problems with the threading support there.     
When using perl with the new glibc on a C240, things seem to work without problems. On    
a 715/33, I get (probably) endless loops with lots of sched_yield() calls.    
    
In the Internet, I found the following site:    
http://sources.redhat.com/ml/libc-alpha/2000-02/msg00057.html   
where Andrea Arcangeli fixed a kernel problem with nanosleep on kernel 2.2 and 2.3, and  
also provided a testprogram. Here are the results of my test:  
  
C240: (2.4.19-pa20)  
# ./nanotest & sleep 4; killall nanotest  
[1] 8455  
userspace             15 sec 778496030 nsec  
kernel                15 sec 800000000 nsec  
[1]+  Done                    ./nanotest  
  
715/33: (2.4.17-32)  
# ./nanotest & sleep 4; killall nanotest  
[1] 1840  
userspace             15 sec 422651030 nsec  
kernel                15 sec 450000000 nsec  
[1]+  Done                    ./nanotest  
  
Intel based for reference: (2.4.19)  
# ./nanotest & sleep 4 ; killall nanotest  
[1] 19648  
userspace             15 sec 984455030 nsec  
kernel                15 sec 984477030 nsec  
[1]+  Done                    ./nanotest  
  
Is there a bugfix missing for parisc? 
 
Berthold 
________________________________________________________________
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Subject: Re: [parisc-linux] [Trap 26 -> EXT3?][If you feel bored, test these 2.5 changes...]
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jsoe0708@tiscali.be said:
> Back to 2.5.46-pa1, I revert the patch and rebuild the kernel and the kernel
> won't boot more. So it seems that problem comes from ext3 usage.
> How may I come back to ext2 (tune2fs -O ^has_journal /dev/md0 [my boot partition]
> ) I nerver do it and a bit affraid to loose my system :(
> 
> Joel

It should be as simple as changing your root fs type from 'ext3' or
'auto' to 'ext2' in /etc/fstab.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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Subject: Re: [parisc-linux] [Trap 26 -> EXT3?][If you feel bored, test these 2.5 changes...]
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Xref: news.gmane.org gmane.linux.ports.parisc:16669

Andrew,
>jsoe0708@tiscali.be said:
>> Back to 2.5.46-pa1, I revert the patch and rebuild the kernel and the
kernel
>> won't boot more. So it seems that problem comes from ext3 usage.
>> How may I come back to ext2 (tune2fs -O ^has_journal /dev/md0 [my boot
>partition]
>> ) I nerver do it and a bit affraid to loose my system :(
>> 
>> Joel
>
>It should be as simple as changing your root fs type from 'ext3' or
>'auto' to 'ext2' in /etc/fstab.

You have perfectly right, just at boot time:
EXT2-fs warning (device md(9,0)): ext2_fill_super: mounting ext3 fs as ext2

...

But it would not help to make the system boot (I also remove ext3 support
from kernel):
...
Unable to find swap-space signature

Stack Dump:
....

Thanks a lot,
    Joel



-------------------------------------------------------------
Tiscali Complete, l'accs Internet moins cher que gratuit ! Plus d'info:
http://complete.tiscali.be




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> Hi List,         
> I tried to compile glibc2.3.1, and have some problems with the threading support there.     
> When using perl with the new glibc on a C240, things seem to work without problems. On    
> a 715/33, I get (probably) endless loops with lots of sched_yield() calls.    
     
glibc 2.3.1 from debian CVS or upstream?

c.



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Hi,

I had not been following these lists and parisc development for more
than half a year now.

I saw a post on 2.5 kernel in the archive for november but do not know
if this is the right place.

Nevertheless Willy and the ohers for sure are reading this ;-)

Are there any updates or fixes or do I need to have a look at it myself ?
This is a bk pull from 20021108-165510 UTC.


  gcc -Wp,-MD,arch/parisc/kernel/.setup.o.d -D__KERNEL__ -Iinclude -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -nostdinc
-iwithprefix include    -DKBUILD_BASENAME=setup   -c -o arch/parisc/kernel/setup.o arch/parisc/kernel/setup.c
arch/parisc/kernel/setup.c: In function `parisc_proc_mkdir':
arch/parisc/kernel/setup.c:215: warning: enumeration value `pcx' not handled in switch
arch/parisc/kernel/setup.c:215: warning: enumeration value `pcxs' not handled in switch
arch/parisc/kernel/setup.c:215: warning: enumeration value `pcxt' not handled in switch
  gcc -Wp,-MD,arch/parisc/kernel/.traps.o.d -D__KERNEL__ -Iinclude -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -nostdinc
-iwithprefix include    -DKBUILD_BASENAME=traps   -c -o arch/parisc/kernel/traps.o arch/parisc/kernel/traps.c
  gcc -Wp,-MD,arch/parisc/kernel/.time.o.d -D__KERNEL__ -Iinclude -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -nostdinc
-iwithprefix include    -DKBUILD_BASENAME=time   -c -o arch/parisc/kernel/time.o arch/parisc/kernel/time.c
  gcc -Wp,-MD,arch/parisc/kernel/.irq.o.d -D__KERNEL__ -Iinclude -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -nostdinc -iwithprefix
include    -DKBUILD_BASENAME=irq   -c -o arch/parisc/kernel/irq.o arch/parisc/kernel/irq.c
arch/parisc/kernel/irq.c: In function `show_interrupts':
arch/parisc/kernel/irq.c:238: subscripted value is neither array nor pointer
arch/parisc/kernel/irq.c: In function `do_irq':
arch/parisc/kernel/irq.c:375: subscripted value is neither array nor pointer
make[1]: *** [arch/parisc/kernel/irq.o] Error 1
make: *** [arch/parisc/kernel] Error 2

Thanks.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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On Fri, Nov 08, 2002 at 09:05:51PM +0000, Bjoern A. Zeeb wrote:
> I had not been following these lists and parisc development for more
> than half a year now.
> 
> I saw a post on 2.5 kernel in the archive for november but do not know
> if this is the right place.
> 
> Nevertheless Willy and the ohers for sure are reading this ;-)
> 
> Are there any updates or fixes or do I need to have a look at it myself ?
> This is a bk pull from 20021108-165510 UTC.

We're not fully integrated into Linus' tree yet.  We're a damn sight
closer than we have been ever before, but you still need either latest
CVS or download a patch.  If you're interested in 2.5, i recommend CVS
since fixes get made on an hourly basis.  Last night's snapshot is ~130k
gzipped, or 500k uncompressed.  About 90% of that is drivers/video,
drivers/input and drivers/scsi.

If you do want a patch, http://ftp.parisc-linux.org/2.5/kernel-src/
is updated nightly (around 5am MST, i believe).

-- 
Revolutions do not require corporate support.


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Hi!
I'm working with a hp c3700 workstation, with nothing what so ever =
installed on the machine.=20
And I want to install parisc-linux onto it.
During bootstage (from CD-rom) the usual is printed to the screen =
"interract with IPL y/n?" I press y and the system asks if I want to =
change anything in the kernel, since I'm new to this kernelconfig thing =
I was wondering if that might be the problem? Maybe I need to edit those =
lines?
because if I just continue booting without editing those lines the =
system dumbs a lot of adresses to the screen and that's it.

I would apreciate som help!

------=_NextPart_000_0006_01C2877D.147997D0
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	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2719.2200" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi!</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I'm working with a hp c3700 =
workstation, with=20
nothing what so ever installed on the machine. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>And I want to install parisc-linux onto =

it.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>During bootstage (from CD-rom) the =
usual is printed=20
to the screen "interract with IPL y/n?" I press y and the system asks if =
I want=20
to change anything in the kernel, since I'm new to this kernelconfig =
thing I was=20
wondering if that might be the problem? Maybe I need to edit those=20
lines?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>because if I just continue booting =
without editing=20
those lines the system dumbs a lot of adresses to the screen and that's=20
it.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I would apreciate som=20
help!</FONT></DIV></BODY></HTML>

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On Fri, 8 Nov 2002, Patrick wrote:

> I'm working with a hp c3700 workstation, with nothing what so ever installed

I had the same problem on a J6700.  The C3700 is just like a J6700 but
with one processor.

You need a more recent kernel than the one that comes with the debian 3.0
installer.  Go to ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/ and grab
palinux-2.4.19-pa19 installation ISOs.  2.4.19-pa21 PDC didn't work for
me.

Grab the kernel after installation and manually copy it to
/target/boot/vmlinux BEFORE YOU REBOOT.  The stock kernel that is
installed is, once again, not recent enough.  The kernel may be in
the ISO - there are also precompiled test kernels in other directories on
ftp.parisc-linux.org.

I used the lifimage to netboot.  Your mileage may vary.

Thanks!

- Matt

ps.  I probably won't see replies since I'm out of town for a week
starting tonight.



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James Bottomley wrote:
>A full abstraction would require the sync point functions that the 53c700 uses
>so that they can optimize away on unnecessary architectures.

	For the moment, I've added the following inline routine to
my linux/dma-ops.h in my generic DMA mapping patch.  I haven't even
tried to compile it, but you should get the picture.

extern void (*_wback_fake_consistent)(void *vaddr, int len);
static inline void wback_fake_consistent(void *vaddr, int len)
{
#ifdef DMA_CONSISTENT_IS_FAKE
	(*_wback_fake_consistent)(vaddr, len);
#endif
}

	The parisc initialization can set _wback_fake_consistent to
either a no-op or dma_cache_wback depending on the architecture that
it is booted on.

>If you're
>signing up to do this right, then I can try it out in the 53c700.  I still
>have two parisc machines, one which cannot do consistent allocations and one
>which can.

	I'll sign up to try if you'll help me, and, most importantly,
to me, get it shepherded into Linus's tree promptly once it looks good.

	To start with, here is another completely untested patch that
I haven't even tried to compile that attempts to port the parisc device
type to the generic device model.  I have deliberately not included any
changes that would make it dependent on my generic DMA routine facility.

	If we could get this patch working, "blessed" as needed,
and into Linus's releases, then I think that would simplify adding
a fake_dma_consistent mechanism that the drivers/net/lasi_82596.c
and drivers/scsi/{lasi700,53c700,etc.}.c could use.

	I think it would be much easier to get this patch integrated
first, as that the next step will probably rely heavily on it.

	One question about the machine that has no consistent memory
option: does it take PCI cards?  If so, then all PCI device drivers
should theoretically use something like wback_fake_consistent.
If not, then it sounds like the facility needs only to apply to
generic DMA operations for "parisc" bus cards.

	I've added parisc-linux@lists.parisc-linux.org to the
cc list and plan to drop linux-scsi from this tangent in my subsequent
responses.

Adam J. Richter     __     ______________   575 Oroville Road
adam@yggdrasil.com     \ /                  Milpitas, California 95035
+1 408 309-6081         | g g d r a s i l   United States of America
                         "Free Software For The Rest Of Us."



diff -u -r linux-2.5.46/include/asm-parisc/hardware.h linux/include/asm-parisc/hardware.h
--- linux-2.5.46/include/asm-parisc/hardware.h	Wed Oct 30 21:32:15 2002
+++ linux/include/asm-parisc/hardware.h	Fri Nov  8 01:49:09 2002
@@ -1,6 +1,7 @@
 #ifndef _PARISC_HARDWARE_H
 #define _PARISC_HARDWARE_H
 
+#include <linux/device.h>
 #include <asm/pdc.h>
 
 struct parisc_device_id {
@@ -26,14 +27,10 @@
 struct parisc_device {
 	unsigned long   hpa;		/* Hard Physical Address */
 	struct parisc_device_id id;
-	struct parisc_device *parent;
-	struct parisc_device *sibling;
-	struct parisc_device *child;
-	struct parisc_driver *driver;	/* Driver for this device */
-	void		*sysdata;	/* Driver instance private data */
 	char		name[80];	/* The hardware description */
 	int		irq;
 
+	struct device	device;
 	char		hw_path;        /* The module number on this bus */
 	unsigned int	num_addrs;	/* some devices have additional address ranges. */
 	unsigned long	*addr;          /* which will be stored here */
@@ -66,10 +63,10 @@
 extern char *cpu_name_version[][2]; /* mapping from enum cpu_type to strings */
 
 struct parisc_driver {
-	struct parisc_driver *next;
 	char *name; 
 	const struct parisc_device_id *id_table;
 	int (*probe) (struct parisc_device *dev); /* New device discovered */
+	struct device_driver driver;
 };
 
 struct io_module {
@@ -128,6 +125,26 @@
 #define HPHW_FAULTY    31
 
 
+static inline struct parisc_device *to_parisc_dev(struct device *dev)
+{
+	return container_of(dev, struct parisc_device, device);
+}
+
+static inline struct parisc_driver *to_parisc_drv(struct driver *dev)
+{
+	return container_of(drv, struct parisc_driver, driver);
+}
+
+static inline void *parisc_get_drvdata(struct parisc_device *pa_dev)
+{
+	return dev_get_drvdata(pa_dev->device);
+}
+
+static inline void parisc_set_drvdata(struct parisc_device *pa_dev, void *ptr)
+{
+	dev_set_drvdata(pa_dev->device, ptr);
+}
+
 /* hardware.c: */
 extern const char *parisc_hardware_description(struct parisc_device_id *id);
 extern enum cpu_type parisc_get_cpu_type(unsigned long hversion);
@@ -135,12 +152,13 @@
 struct pci_dev;
 
 /* drivers.c: */
+extern struct bus_type parisc_bus_type;
 extern struct parisc_device *alloc_pa_dev(unsigned long hpa,
 		struct hardware_path *path);
 extern int register_parisc_device(struct parisc_device *dev);
 extern int register_parisc_driver(struct parisc_driver *driver);
 extern int count_parisc_driver(struct parisc_driver *driver);
-extern int unregister_parisc_driver(struct parisc_driver *driver);
+extern void unregister_parisc_driver(struct parisc_driver *driver);
 extern void walk_central_bus(void);
 extern void fixup_child_irqs(struct parisc_device *parent, int irqbase,
 		int (*choose)(struct parisc_device *parent));
diff -u -r linux-2.5.46/arch/parisc/kernel/drivers.c linux/arch/parisc/kernel/drivers.c
--- linux-2.5.46/arch/parisc/kernel/drivers.c	Mon Nov  4 21:35:43 2002
+++ linux/arch/parisc/kernel/drivers.c	Fri Nov  8 02:05:25 2002
@@ -27,17 +27,8 @@
 /* See comments in include/asm-parisc/pci.h */
 struct pci_dma_ops *hppa_dma_ops;
 
-static struct parisc_driver *pa_drivers;
 static struct parisc_device root;
 
-/* This lock protects the pa_drivers list _only_ since all parisc_devices
- * are registered before smp_init() is called.  If you wish to add devices
- * after that, this muct be serialised somehow.  I recommend a semaphore
- * rather than a spinlock since driver ->probe functions are allowed to
- * sleep (for example when allocating memory).
- */
-static spinlock_t pa_lock = SPIN_LOCK_UNLOCKED;
-
 #define for_each_padev(dev) \
 	for (dev = root.child; dev != NULL; dev = next_dev(dev))
 
@@ -53,20 +44,13 @@
  */
 struct parisc_device *next_dev(struct parisc_device *dev)
 {
-	if (dev->child) {
-		return check_dev(dev->child);
-	} else if (dev->sibling) {
-		return dev->sibling;
-	}
+	struct device *next =
+		list_entry(dev->device.next, struct device, g_list);
 
-	/* Exhausted tree at this level, time to go up. */
-	do {
-		dev = dev->parent;
-		if (dev && dev->sibling)
-			return dev->sibling;
-	} while (dev != &root);
-
-	return NULL;
+	if (next->parent == NULL) /* end of list.  back at root */
+		return NULL;
+	else
+		return container_of(next, struct parisc_device, device);
 }
 
 /**
@@ -74,8 +58,11 @@
  * @driver: the PA-RISC driver to try
  * @dev: the PA-RISC device to try
  */
-static int match_device(struct parisc_driver *driver, struct parisc_device *dev)
+static int
+parisc_match_device(struct device_driver *gendrv, struct device *gendev)
 {
+	struct parisc_driver *driver = to_parisc_driver(gendrv);
+	struct parisc_device *dev = to_parisc_device(gendev);
 	const struct parisc_device_id *ids;
 
 	for (ids = driver->id_table; ids->sversion; ids++) {
@@ -96,10 +83,14 @@
 	return 0;
 }
 
-static void claim_device(struct parisc_driver *driver, struct parisc_device *dev)
+static int parisc_device_probe(struct device *dev)
 {
-	dev->driver = driver;
-	request_mem_region(dev->hpa, 0x1000, driver->name);
+	struct parisc_device *pa_dev = to_parisc_device(dev);
+	struct parisc_driver *pa_drv = to_parisc_driver(dev->driver);
+	int err = (*pa_drv->probe)(pa_dev);
+	if (!err)
+		request_mem_region(dev->hpa, 0x1000, driver->name);
+	return err;
 }
 
 /**
@@ -108,37 +99,22 @@
  */
 int register_parisc_driver(struct parisc_driver *driver)
 {
-	struct parisc_device *device;
-
-	if (driver->next) {
-		printk(KERN_WARNING 
-		       "BUG: Skipping previously registered driver: %s\n",
-		       driver->name);
-		return 1;
-	}
-
-	for_each_padev(device) {
-		if (device->driver)
-			continue;
-		if (!match_device(driver, device))
-			continue;
-
-		if (driver->probe(device) < 0)
-			continue;
-		claim_device(driver, device);
-	}
+	driver->driver.bus_type = &parisc_bus_type;
+	driver->driver.probe = parisc_device_probe;
+	return driver_register(&driver->driver);
+}
 
-	/* Note that the list is in reverse order of registration.  This
-	 * may be significant if we ever actually support hotplug and have
-	 * multiple drivers capable of claiming the same chip.
-	 */
-
-	spin_lock(&pa_lock);
-	driver->next = pa_drivers;
-	pa_drivers = driver;
-	spin_unlock(&pa_lock);
+struct count_arg {
+	struct driver *driver;
+	int count;
+};
 
-	return 0;
+static void count_callback(struct device *dev, void *data)
+{
+	struct count_arg *arg = data;
+	
+	if (parisc_match_device(&arg->driver, dev))
+		(arg->count)++;
 }
 
 /**
@@ -148,17 +124,14 @@
  * Use by IOMMU support to "guess" the right size IOPdir.
  * Formula is something like memsize/(num_iommu * entry_size).
  */
-int count_parisc_driver(struct parisc_driver *driver)
+int count_parisc_driver(struct parisc_driver *pa_driver)
 {
-	struct parisc_device *device;
-	int cnt = 0;
-
-	for_each_padev(device) {
-		if (match_device(driver, device))
-			cnt++;
-	}
-
-	return cnt;
+	struct count_arg arg;
+  
+	arg.driver = &pa_driver->driver;
+	arg.count = 0;
+	bus_for_each_dev(arg.driver->bus, &arg, count_callback);
+	return arg.count;
 }
 
 
@@ -167,42 +140,9 @@
  * unregister_parisc_driver - Unregister this driver from the list of drivers
  * @driver: the PA-RISC driver to unregister
  */
-int unregister_parisc_driver(struct parisc_driver *driver)
+void unregister_parisc_driver(struct parisc_driver *driver)
 {
-	struct parisc_device *dev;
-
-	spin_lock(&pa_lock);
-
-	if (pa_drivers == driver) {
-		/* was head of list - update head */
-		pa_drivers = driver->next;
-	} else {
-		struct parisc_driver *prev = pa_drivers;
-
-		while (prev && driver != prev->next) {
-			prev = prev->next;
-		}
-
-		if (!prev) {
-			printk(KERN_WARNING "unregister_parisc_driver: %s wasn't registered\n", driver->name);
-		} else {
-			/* Drop driver from list */
-			prev->next = driver->next;
-			driver->next = NULL;
-		}
-
-	}
-
-	spin_unlock(&pa_lock);
-
-	for_each_padev(dev) {
-		if (dev->driver != driver)
-			continue;
-		dev->driver = NULL;
-		release_mem_region(dev->hpa, 0x1000);
-	}
-
-	return 0;
+	driver_unregister(&driver->driver);
 }
 
 static struct parisc_device *find_device_by_addr(unsigned long hpa)
@@ -335,7 +275,8 @@
 	memset(dev, 0, sizeof(*dev));
 	dev->hw_path = id;
 	dev->id.hw_type = HPHW_FAULTY;
-	dev->parent = parent;
+	dev->device.bus_type = &parisc_bus_type;
+	dev->device.parent = &parent->device;
 	dev->sibling = *insert;
 	*insert = dev;
 	return dev;
@@ -429,32 +370,11 @@
  *
  * Search the driver list for a driver that is willing to manage
  * this device.
+ * WARNING: This routine now returns 0 on success. --Adam J. Richter 2002.11.08
  */
 int register_parisc_device(struct parisc_device *dev)
 {
-	struct parisc_driver *driver;
-
-	if (!dev)
-		return 0;
-
-	if (dev->driver)
-		return 1;
-	
-	spin_lock(&pa_lock);
-
-	/* Locate a driver which agrees to manage this device.  */
-	for (driver = pa_drivers; driver; driver = driver->next) {
-		if (!match_device(driver,dev))
-			continue;
-		if (driver->probe(dev) == 0)
-			break;
-	}
-
-	if (driver != NULL) {
-		claim_device(driver, dev);
-	}
-	spin_unlock(&pa_lock);
-	return driver != NULL;
+	return device_register(&dev->device);
 }
 
 #define BC_PORT_MASK 0x8
@@ -588,3 +508,8 @@
 		print_parisc_device(dev);
 	}
 }
+
+struct bus_type parisc_bus_type = {
+	.name =		"parisc",
+	.match =	parisc_match_device,
+};
diff -u -r linux-2.5.46/arch/parisc/kernel/processor.c linux/arch/parisc/kernel/processor.c
--- linux-2.5.46/arch/parisc/kernel/processor.c	Mon Nov  4 21:35:44 2002
+++ linux/arch/parisc/kernel/processor.c	Fri Nov  8 01:00:32 2002
@@ -370,9 +370,9 @@
 };
 
 static struct parisc_driver cpu_driver = {
-	name:		"CPU",
-	id_table:	processor_tbl,
-	probe:		processor_probe
+	.name =		"CPU",
+	.id_table =	processor_tbl,
+	.probe =	processor_probe
 };
 
 /**
diff -u -r linux-2.5.46/drivers/parisc/sba_iommu.c linux/drivers/parisc/sba_iommu.c
--- linux-2.5.46/drivers/parisc/sba_iommu.c	Fri Nov  8 01:28:15 2002
+++ linux/drivers/parisc/sba_iommu.c	Fri Nov  8 01:43:35 2002
@@ -1988,7 +1988,7 @@
 		return(1);
 	}
 
-	dev->sysdata = (void *) sba_dev;
+	parisc_set_drvdata(dev, sba_dev);
 	memset(sba_dev, 0, sizeof(struct sba_device));
 
 	for(i=0; i<MAX_IOC; i++)
@@ -2041,7 +2041,7 @@
  */
 void * sba_get_iommu(struct parisc_device *pci_hba)
 {
-	struct sba_device *sba = (struct sba_device *) pci_hba->parent->sysdata;
+	struct sba_device *sba = parisc_get_drvdata(pci_hba->parent);
 	char t = pci_hba->parent->id.hw_type;
 	int iocnum = (pci_hba->hw_path >> 3);	/* rope # */
 


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Subject: Re: [parisc-linux] Untested port of parisc_device to generic device interface
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"Adam J. Richter" wrote:
> 	One question about the machine that has no consistent memory
> option: does it take PCI cards?

Adam (and James),
They don't have PCI slots.
I hedge because HP makes a "card-mode Dino" type of card that will
fit into 715 which has a GSCtoPCI bus controller on-board along
with the target PCI device (eg 21143 tulip)

The only non-coherent machines I can think of off hand are fairly old.
Common feature is they have PCX-T and older processor:
	http://hwdb.parisc-linux.org/view.php3?type=cpu&name=PA7000%20(PCX-S)
	http://hwdb.parisc-linux.org/view.php3?type=cpu&name=PA7100%2FPA7150%20(PCX-T)

> If so, then all PCI device drivers
> should theoretically use something like wback_fake_consistent.

I don't think that would fly even if it was needed.

> If not, then it sounds like the facility needs only to apply to
> generic DMA operations for "parisc" bus cards.

I think so.
Matthew "willy" Wilcox is more familiar with the issues than I though.
I've focus'd on systems with PCI.

...
> diff -u -r linux-2.5.46/include/asm-parisc/hardware.h linux/include/asm-paris
>   c/hardware.h
> --- linux-2.5.46/include/asm-parisc/hardware.h	Wed Oct 30 21:32:15 200
>   2
> +++ linux/include/asm-parisc/hardware.h	Fri Nov  8 01:49:09 2002
> @@ -1,6 +1,7 @@
>  #ifndef _PARISC_HARDWARE_H
>  #define _PARISC_HARDWARE_H
>  
> +#include <linux/device.h>
>  #include <asm/pdc.h>
>  
>  struct parisc_device_id {
> @@ -26,14 +27,10 @@
>  struct parisc_device {
>  	unsigned long   hpa;		/* Hard Physical Address */
>  	struct parisc_device_id id;
> -	struct parisc_device *parent;
> -	struct parisc_device *sibling;
> -	struct parisc_device *child;
> -	struct parisc_driver *driver;	/* Driver for this device */

you don't want to do this unless something similar replaces it.
Coherent IO machines depend on the parent/child relationships to
initialize/operate properly.

> -	void		*sysdata;	/* Driver instance private data */
>  	char		name[80];	/* The hardware description */
>  	int		irq;
>  
> +	struct device	device;

making this the first thing in the struct would allow simple
casts to/from each "flavor" of device structure. ie PCI controller
code could look at the struct for any other bus controller safely
(and vice versa).

>  	char		hw_path;        /* The module number on this bus */
>  	unsigned int	num_addrs;	/* some devices have additional address
>    ranges. */
>  	unsigned long	*addr;          /* which will be stored here */
> @@ -66,10 +63,10 @@
>  extern char *cpu_name_version[][2]; /* mapping from enum cpu_type to strings
>    */
>  
>  struct parisc_driver {
> -	struct parisc_driver *next;
>  	char *name; 
>  	const struct parisc_device_id *id_table;
>  	int (*probe) (struct parisc_device *dev); /* New device discovered */

and *dev should point to a struct device?

willy/rbrad really need to review/collaborate with this set of change
since they've put alot of effort into the current scheme.
I'm sure both would be glad to help.

thanks!
grant


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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Untested port of parisc_device to generic device interface
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On Fri, Nov 08, 2002 at 05:28:05PM -0800, Adam J. Richter wrote:
> 	To start with, here is another completely untested patch that
> I haven't even tried to compile that attempts to port the parisc device
> type to the generic device model.  I have deliberately not included any
> changes that would make it dependent on my generic DMA routine facility.

Actually I think the generic device model is crap.  It's failed to live
up to its promise of removing common fields from structs, it's introduced
a new composite filesystem and it's not helped in any concrete way.

Just look at pci_dev:

struct pci_dev {
        struct list_head global_list;   /* node in list of all PCI devices */
        struct list_head bus_list;      /* node in per-bus list */
        struct pci_bus  *bus;           /* bus this device is on */
        struct pci_bus  *subordinate;   /* bus this device bridges to */
        struct proc_dir_entry *procent; /* device entry in /proc/bus/pci */

        unsigned int    devfn;          /* encoded device & function index */
        struct pci_driver *driver;      /* which driver has allocated this devic
e */
        void            *driver_data;   /* data private to the driver */
        struct  device  dev;            /* Generic device interface */
        struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regio
ns + expansion ROMs */
        struct resource dma_resource[DEVICE_COUNT_DMA];
        struct resource irq_resource[DEVICE_COUNT_IRQ];
        char            name[90];       /* device name */
}

(there may be some more duplicate fields i've missed)

here's the duplicate fields in struct device:

struct device {
        struct list_head g_list;        /* node in depth-first order list */
        struct list_head node;          /* node in sibling list */
        struct list_head bus_list;      /* node in bus's list */
        struct list_head driver_list;
        struct list_head children;
        struct list_head intf_list;
        struct device   * parent;
        char    name[DEVICE_NAME_SIZE]; /* descriptive ascii string */
        char    bus_id[BUS_ID_SIZE];    /* position on parent bus */

        spinlock_t      lock;           /* lock for the device to ensure two
                                           different layers don't access it at
                                           the same time. */
        atomic_t        refcount;       /* refcount to make sure the device
                                         * persists for the right amount of time
 */

        struct bus_type * bus;          /* type of bus device is on */
        struct device_driver *driver;   /* which driver has allocated this
                                           device */
        void            *driver_data;   /* data private to the driver */
}

Oh, and _that_ embeds a struct kobject:

struct kobject {
        char                    name[KOBJ_NAME_LEN];
        atomic_t                refcount;
        struct list_head        entry;
        struct kobject          * parent;
        struct subsystem        * subsys;
        struct dentry           * dentry;
};

For fucks sake, this is ridiculous.  I haven't dared compare the relative
sizes of struct pci_dev between 2.5, 2.4 and 2.2, but this is sheer bloat.

I was hoping for something _incredibly_ simple from struct device.
Something to replace pci_alloc_consistent with device_alloc_consistent.
Something where I could look through the ancestors of a device to find
out whether it was under a CCIO or just a processor.  Something I could
query to find out whether it was an EISA, a GSC or a PCI device.

I'm disappointed this is trying to serve the needs of USB over the needs
of busses in the box.  I don't think it was even remotely smart to unify
USB with other busses.  And I think the PCI system has suffered the most.
I guess I'm so annoyed because I thought it might solve problems instead
of increasing the amount of user eyecandy.

> 	One question about the machine that has no consistent memory
> option: does it take PCI cards?  If so, then all PCI device drivers
> should theoretically use something like wback_fake_consistent.
> If not, then it sounds like the facility needs only to apply to
> generic DMA operations for "parisc" bus cards.

The only machines which can take any kind of PCI devices that don't
have consistent memory available to them are the T-class machines.
We have no plans to support these machines.  What you do need to watch
out for are machines such as the 735/755 which can take an NCR720 chip
in a non-coherent memory machine.  It is of course also used in machines
which are perfectly capable of allocating consistent memory (whether
through uncached mappings or a cache-coherent IO TLB).

-- 
Revolutions do not require corporate support.


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On Fri, Nov 08, 2002 at 06:56:11PM -0700, Grant Grundler wrote:
> They don't have PCI slots.
> I hedge because HP makes a "card-mode Dino" type of card that will
> fit into 715 which has a GSCtoPCI bus controller on-board along
> with the target PCI device (eg 21143 tulip)

Sorry Grant, HP marketing has confused you ;-).  715/33, 715/50 &
715/75 have a PCX-T processor (can't do uncached pages), but don't have
a GSC slot.  715/64, 715/80, 715/100 & 715/100XC have a PCX-L processor
(can do uncached pages), and do have a GSC slot.  The only machines
with GSC and non-coherent memory are the T class (unsupportable..) and
something like an F, G, H or I class with a GeckoBOA adapter... and we
aren't claiming support for those either.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] Untested port of parisc_device to generic device interface
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Matthew Wilcox wrote:
>Actually I think the generic device model is crap. [...]

My patch is a net deletion of 57 lines and will allow simplification
of parisc DMA allocation.

Although I agree with most of your criticisms about the generic device
model, most of the problems with it are the way people use it (the
first thing everyone wants to do is a driverfs file system) and some
conventions that I disagree with, such as the idea that drivers that
embed struct device and struct device_driver should not initialize
those fields directly, but should have xxx_register_device copy them
in.  parisc can use the generic driver API without getting fat.

Problems specific to the generic device API can be incrementally
improved and nobody is treating it as set in stone.  I think the
generic device API is close enough already so that it's worth porting
to, even if future clean-ups will then require some small changes to
the code that is ported to it.

Please do not throw the baby out with the bath water.  The generic
driver interface in its present form really can make parisc smaller
and cleaner.

Adam J. Richter     __     ______________   575 Oroville Road
adam@yggdrasil.com     \ /                  Miplitas, California 95035
+1 408 309-6081         | g g d r a s i l   United States of America
                         "Free Software For The Rest Of Us."


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On Fri, Nov 08, 2002 at 08:51:28PM -0800, Adam J. Richter wrote:
> My patch is a net deletion of 57 lines and will allow simplification
> of parisc DMA allocation.

57 lines of clean elegant code, replacing them with overly generic ugly
code and bloated data structures.  struct device is a round 256 bytes
on x86.  more on 64-bit architectures.

> in.  parisc can use the generic driver API without getting fat.

no.  it can't.

> Problems specific to the generic device API can be incrementally
> improved and nobody is treating it as set in stone.  I think the
> generic device API is close enough already so that it's worth porting
> to, even if future clean-ups will then require some small changes to
> the code that is ported to it.

Everyone's saying "ra!  ra!  generic device model!" without asking
what the cost is.  Don't you think it's reasonable that _as the most
common device type_, struct device should be able to support PCI in a
clean manner?  Don't you think that the fact that it fails to do so is
a problem?  Don't you look at the locks sprinkled all over the struct
device system and wonder what they're all _for_?

Don't get me wrong.  I want a generic device model.  But I think it's
clear the current one has failed to show anything more than eye candy.
Perhaps it's time to start over, with something small and sane -- maybe
kobject (it's not quite what we need, but it's close).  Put one of those
in struct pci_dev.  Remove duplicate fields.  Now maybe grow kobject a
little, or perhaps start a new struct with a kobject as its first member.

And, for gods sake, don't fuck it up by integrating it with USB too early
in the game.  Let's get it right for PCI, maybe some other internal busses
(i'm gagging to write an EISA subsystem ;-).  SCSI is more interesting
than USB.  Above all, don't fall into the trap of "It's a bus and it
has devices on it, therefore it must be a part of devicefs".

*sigh*.  halloween was a week ago.

-- 
Revolutions do not require corporate support.


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On Sat, Nov 09, 2002 at 05:21:50AM +0000, Matthew Wilcox wrote:
> 
> Everyone's saying "ra!  ra!  generic device model!" without asking
> what the cost is.  Don't you think it's reasonable that _as the most
> common device type_, struct device should be able to support PCI in a
> clean manner?

No I do not.

> Don't you think that the fact that it fails to do so is a problem?

Yes I do.

> Don't you look at the locks sprinkled all over the struct device
> system and wonder what they're all _for_?

Nope :)
(yes, I do wonder, and yes, they will be cleaned up...)

> Don't get me wrong.  I want a generic device model.  But I think it's
> clear the current one has failed to show anything more than eye candy.
> Perhaps it's time to start over, with something small and sane -- maybe
> kobject (it's not quite what we need, but it's close).  Put one of those
> in struct pci_dev.  Remove duplicate fields.  Now maybe grow kobject a
> little, or perhaps start a new struct with a kobject as its first member.

No, lets start pulling stuff out of pci_dev and relying on struct
device.  The reason this hasn't happened yet is no one has been willing
to break all of the PCI drivers, yet.

I know Pat is going to be doing this soon, and if he doesn't get to it,
I will.  But as Adam said, don't throw away the idea because it looks
crufty now.  This has been a _constantly_ evolving model as we work to
get it right.  It will take time, and we are still getting there.

> And, for gods sake, don't fuck it up by integrating it with USB too early
> in the game.

In my defense, USB was the _only_ bus willing to step up and try to do
the integration to work the initial kinks out.  The SCSI people are
being drug kicking and screaming into it, _finally_ now (hell, SCSI is
still not using the updated PCI interface, those people _never_ update
their drivers if they can avoid it.)

> Let's get it right for PCI, maybe some other internal busses
> (i'm gagging to write an EISA subsystem ;-).  SCSI is more interesting
> than USB.  Above all, don't fall into the trap of "It's a bus and it
> has devices on it, therefore it must be a part of devicefs".

Sure SCSI's more interesting, to you :)

By having USB be one of the first adopters (after PCI), we have found a
_lot_ of issues and bugs that happened due to devices showing up and
disappearing at odd times.  Which was _much_ easier to debug than PCI
would have been.  SCSI can't even do hotplug devices _yet_.  How would
we have debugged this stuff then?

And yes, USB belongs in the model, if for no other reason, that "it's a
bus and it has devices on it" :)

> *sigh*.  halloween was a week ago.

Patches for this stuff are going to be happening for quite some time
now, don't despair.

And they are greatly appreciated, and welcomed from everyone :)

thanks,

greg k-h


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On Fri, 8 Nov 2002, Matthew Wilcox wrote:

Hi,

> On Fri, Nov 08, 2002 at 09:05:51PM +0000, Bjoern A. Zeeb wrote:
> >
> > Are there any updates or fixes or do I need to have a look at it myself ?
> > This is a bk pull from 20021108-165510 UTC.
>
> We're not fully integrated into Linus' tree yet.  We're a damn sight
> closer than we have been ever before, but you still need either latest
> CVS or download a patch.  If you're interested in 2.5, i recommend CVS
> since fixes get made on an hourly basis.  Last night's snapshot is ~130k
> gzipped, or 500k uncompressed.  About 90% of that is drivers/video,
> drivers/input and drivers/scsi.
>
> If you do want a patch, http://ftp.parisc-linux.org/2.5/kernel-src/
> is updated nightly (around 5am MST, i believe).

thanks. I will consider a cvs co but first fetch the patch.

*grrml* I must have missed this directory while looking at
ftp.parisc-linux.org though I had a look at kernels and src ...

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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>>>>> "Matthew" == Matthew Wilcox <willy@debian.org> writes:

Matthew> (i'm gagging to write an EISA subsystem ;-).

Humm, please don't... :-)

maz@midlife-crisis:~$ ls -R /sys/bus/eisa/ 
/sys/bus/eisa/:
devices  drivers

/sys/bus/eisa/devices:
00:00  00:01  00:02

/sys/bus/eisa/drivers:
3c509

/sys/bus/eisa/drivers/3c509:
00:02
maz@midlife-crisis:~$ 

I have it working on x86 and Alpha, will test parisc and mips over the
week-end.

        M.
-- 
Places change, faces change. Life is so very strange.


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Carlos O'Donell wrote:
> 
> > Hi List,
> > I tried to compile glibc2.3.1, and have some problems with the threading support there.
> > When using perl with the new glibc on a C240, things seem to work without problems. On
> > a 715/33, I get (probably) endless loops with lots of sched_yield() calls.
> 
> glibc 2.3.1 from debian CVS or upstream?

This is upstream with hppa patches from the debian tree. 

The report was probably bad. In the mail thread I mentioned in my
previous mail, the nanosleep in the kernel was fixed because of
threading problems. If I understand it correctly, threading will always
have problems without a realy working nanosleep.

Berthold



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Matthew Wilcox writes:
>On Fri, Nov 08, 2002 at 08:51:28PM -0800, Adam J. Richter wrote:
>> My patch is a net deletion of 57 lines and will allow simplification
>> of parisc DMA allocation.
>
>57 lines of clean elegant code, replacing them with overly generic ugly
>code and bloated data structures.

	You'd really have to gerrymander to pick a standard by which
my code is "ugly" and what it deletes is "clean and elegant."  I leave
it to other interested readers to look at my patch and judge.

>struct device is a round 256 bytes
>on x86.  more on 64-bit architectures.

	Here is an updated version of my completely untested patch
that replaces parisc_device.name[] with parisc_device.device.name[].

	sizeof(struct device), at least on x86	244 bytes
	5 pointers removed from parisc_device   -40 bytes
	parisc_device.name moved to .device	-80 bytes
						---------
	Size cost of using struct device	124 bytes per parisc_device

	There are ten drivers in drivers/parisc and arch/parisc that
define a struct parisc_driver.  Perhaps you'll have an average of ~1.5
of each such device in a parisc system or maybe ten struct
parisc_device's and a similar number of parisc_driver's.  So, you're
talking about perhaps 2kB of additional space for parisc_device's,
perhaps 3kB including the parisc_driver's.

	This space cost would be reduced somewhat by the shrinkage to
arch/parisc/kernel/drivers.c, and this code will enable other
simplifications.  Even without those other simplificatins, this code
may be a net space savings on some systems.

Adam J. Richter     __     ______________   575 Oroville Road
adam@yggdrasil.com     \ /                  Miplitas, California 95035
+1 408 309-6081         | g g d r a s i l   United States of America
                         "Free Software For The Rest Of Us."

diff -u -r linux-2.5.46/include/asm-parisc/hardware.h linux/include/asm-parisc/hardware.h
--- linux-2.5.46/include/asm-parisc/hardware.h	Wed Oct 30 21:32:15 2002
+++ linux/include/asm-parisc/hardware.h	Sat Nov  9 03:07:23 2002
@@ -1,6 +1,7 @@
 #ifndef _PARISC_HARDWARE_H
 #define _PARISC_HARDWARE_H
 
+#include <linux/device.h>
 #include <asm/pdc.h>
 
 struct parisc_device_id {
@@ -26,14 +27,9 @@
 struct parisc_device {
 	unsigned long   hpa;		/* Hard Physical Address */
 	struct parisc_device_id id;
-	struct parisc_device *parent;
-	struct parisc_device *sibling;
-	struct parisc_device *child;
-	struct parisc_driver *driver;	/* Driver for this device */
-	void		*sysdata;	/* Driver instance private data */
-	char		name[80];	/* The hardware description */
 	int		irq;
 
+	struct device	device;
 	char		hw_path;        /* The module number on this bus */
 	unsigned int	num_addrs;	/* some devices have additional address ranges. */
 	unsigned long	*addr;          /* which will be stored here */
@@ -66,10 +62,9 @@
 extern char *cpu_name_version[][2]; /* mapping from enum cpu_type to strings */
 
 struct parisc_driver {
-	struct parisc_driver *next;
-	char *name; 
 	const struct parisc_device_id *id_table;
 	int (*probe) (struct parisc_device *dev); /* New device discovered */
+	struct device_driver driver;
 };
 
 struct io_module {
@@ -128,6 +123,26 @@
 #define HPHW_FAULTY    31
 
 
+static inline struct parisc_device *to_parisc_dev(struct device *dev)
+{
+	return container_of(dev, struct parisc_device, device);
+}
+
+static inline struct parisc_driver *to_parisc_drv(struct driver *dev)
+{
+	return container_of(drv, struct parisc_driver, driver);
+}
+
+static inline void *parisc_get_drvdata(struct parisc_device *pa_dev)
+{
+	return dev_get_drvdata(pa_dev->device);
+}
+
+static inline void parisc_set_drvdata(struct parisc_device *pa_dev, void *ptr)
+{
+	dev_set_drvdata(pa_dev->device, ptr);
+}
+
 /* hardware.c: */
 extern const char *parisc_hardware_description(struct parisc_device_id *id);
 extern enum cpu_type parisc_get_cpu_type(unsigned long hversion);
@@ -135,12 +150,13 @@
 struct pci_dev;
 
 /* drivers.c: */
+extern struct bus_type parisc_bus_type;
 extern struct parisc_device *alloc_pa_dev(unsigned long hpa,
 		struct hardware_path *path);
 extern int register_parisc_device(struct parisc_device *dev);
 extern int register_parisc_driver(struct parisc_driver *driver);
 extern int count_parisc_driver(struct parisc_driver *driver);
-extern int unregister_parisc_driver(struct parisc_driver *driver);
+extern void unregister_parisc_driver(struct parisc_driver *driver);
 extern void walk_central_bus(void);
 extern void fixup_child_irqs(struct parisc_device *parent, int irqbase,
 		int (*choose)(struct parisc_device *parent));
diff -u -r linux-2.5.46/arch/parisc/kernel/drivers.c linux/arch/parisc/kernel/drivers.c
--- linux-2.5.46/arch/parisc/kernel/drivers.c	Mon Nov  4 21:35:43 2002
+++ linux/arch/parisc/kernel/drivers.c	Sat Nov  9 03:21:25 2002
@@ -27,17 +27,8 @@
 /* See comments in include/asm-parisc/pci.h */
 struct pci_dma_ops *hppa_dma_ops;
 
-static struct parisc_driver *pa_drivers;
 static struct parisc_device root;
 
-/* This lock protects the pa_drivers list _only_ since all parisc_devices
- * are registered before smp_init() is called.  If you wish to add devices
- * after that, this muct be serialised somehow.  I recommend a semaphore
- * rather than a spinlock since driver ->probe functions are allowed to
- * sleep (for example when allocating memory).
- */
-static spinlock_t pa_lock = SPIN_LOCK_UNLOCKED;
-
 #define for_each_padev(dev) \
 	for (dev = root.child; dev != NULL; dev = next_dev(dev))
 
@@ -53,20 +44,13 @@
  */
 struct parisc_device *next_dev(struct parisc_device *dev)
 {
-	if (dev->child) {
-		return check_dev(dev->child);
-	} else if (dev->sibling) {
-		return dev->sibling;
-	}
+	struct device *next =
+		list_entry(dev->device.next, struct device, g_list);
 
-	/* Exhausted tree at this level, time to go up. */
-	do {
-		dev = dev->parent;
-		if (dev && dev->sibling)
-			return dev->sibling;
-	} while (dev != &root);
-
-	return NULL;
+	if (next->parent == NULL) /* end of list.  back at root */
+		return NULL;
+	else
+		return container_of(next, struct parisc_device, device);
 }
 
 /**
@@ -74,8 +58,11 @@
  * @driver: the PA-RISC driver to try
  * @dev: the PA-RISC device to try
  */
-static int match_device(struct parisc_driver *driver, struct parisc_device *dev)
+static int
+parisc_match_device(struct device_driver *gendrv, struct device *gendev)
 {
+	struct parisc_driver *driver = to_parisc_driver(gendrv);
+	struct parisc_device *dev = to_parisc_device(gendev);
 	const struct parisc_device_id *ids;
 
 	for (ids = driver->id_table; ids->sversion; ids++) {
@@ -96,10 +83,17 @@
 	return 0;
 }
 
-static void claim_device(struct parisc_driver *driver, struct parisc_device *dev)
+static int parisc_device_probe(struct device *dev)
 {
-	dev->driver = driver;
-	request_mem_region(dev->hpa, 0x1000, driver->name);
+	struct parisc_device *pa_dev = to_parisc_device(dev);
+	struct device_driver *drv = dev->driver;
+	struct parisc_driver *pa_drv = to_parisc_driver(drv);
+	int err = (*pa_drv->probe)(pa_dev);
+
+	if (!err)
+		request_mem_region(dev->hpa, 0x1000, drv->name);
+
+	return err;
 }
 
 /**
@@ -108,37 +102,22 @@
  */
 int register_parisc_driver(struct parisc_driver *driver)
 {
-	struct parisc_device *device;
-
-	if (driver->next) {
-		printk(KERN_WARNING 
-		       "BUG: Skipping previously registered driver: %s\n",
-		       driver->name);
-		return 1;
-	}
-
-	for_each_padev(device) {
-		if (device->driver)
-			continue;
-		if (!match_device(driver, device))
-			continue;
-
-		if (driver->probe(device) < 0)
-			continue;
-		claim_device(driver, device);
-	}
+	driver->driver.bus_type = &parisc_bus_type;
+	driver->driver.probe = parisc_device_probe;
+	return driver_register(&driver->driver);
+}
 
-	/* Note that the list is in reverse order of registration.  This
-	 * may be significant if we ever actually support hotplug and have
-	 * multiple drivers capable of claiming the same chip.
-	 */
-
-	spin_lock(&pa_lock);
-	driver->next = pa_drivers;
-	pa_drivers = driver;
-	spin_unlock(&pa_lock);
+struct count_arg {
+	struct driver *driver;
+	int count;
+};
 
-	return 0;
+static void count_callback(struct device *dev, void *data)
+{
+	struct count_arg *arg = data;
+	
+	if (parisc_match_device(&arg->driver, dev))
+		(arg->count)++;
 }
 
 /**
@@ -148,17 +127,14 @@
  * Use by IOMMU support to "guess" the right size IOPdir.
  * Formula is something like memsize/(num_iommu * entry_size).
  */
-int count_parisc_driver(struct parisc_driver *driver)
+int count_parisc_driver(struct parisc_driver *pa_driver)
 {
-	struct parisc_device *device;
-	int cnt = 0;
-
-	for_each_padev(device) {
-		if (match_device(driver, device))
-			cnt++;
-	}
-
-	return cnt;
+	struct count_arg arg;
+  
+	arg.driver = &pa_driver->driver;
+	arg.count = 0;
+	bus_for_each_dev(arg.driver->bus, &arg, count_callback);
+	return arg.count;
 }
 
 
@@ -167,42 +143,9 @@
  * unregister_parisc_driver - Unregister this driver from the list of drivers
  * @driver: the PA-RISC driver to unregister
  */
-int unregister_parisc_driver(struct parisc_driver *driver)
+void unregister_parisc_driver(struct parisc_driver *driver)
 {
-	struct parisc_device *dev;
-
-	spin_lock(&pa_lock);
-
-	if (pa_drivers == driver) {
-		/* was head of list - update head */
-		pa_drivers = driver->next;
-	} else {
-		struct parisc_driver *prev = pa_drivers;
-
-		while (prev && driver != prev->next) {
-			prev = prev->next;
-		}
-
-		if (!prev) {
-			printk(KERN_WARNING "unregister_parisc_driver: %s wasn't registered\n", driver->name);
-		} else {
-			/* Drop driver from list */
-			prev->next = driver->next;
-			driver->next = NULL;
-		}
-
-	}
-
-	spin_unlock(&pa_lock);
-
-	for_each_padev(dev) {
-		if (dev->driver != driver)
-			continue;
-		dev->driver = NULL;
-		release_mem_region(dev->hpa, 0x1000);
-	}
-
-	return 0;
+	driver_unregister(&driver->driver);
 }
 
 static struct parisc_device *find_device_by_addr(unsigned long hpa)
@@ -335,7 +278,8 @@
 	memset(dev, 0, sizeof(*dev));
 	dev->hw_path = id;
 	dev->id.hw_type = HPHW_FAULTY;
-	dev->parent = parent;
+	dev->device.bus_type = &parisc_bus_type;
+	dev->device.parent = &parent->device;
 	dev->sibling = *insert;
 	*insert = dev;
 	return dev;
@@ -417,7 +361,7 @@
 	dev->hpa = hpa;
 	name = parisc_hardware_description(&dev->id);
 	if (name) {
-		strncpy(dev->name, name, sizeof(dev->name)-1);
+		strncpy(dev->device.name, name, sizeof(dev->device.name)-1);
 	}
 
 	return dev;
@@ -429,32 +373,11 @@
  *
  * Search the driver list for a driver that is willing to manage
  * this device.
+ * WARNING: This routine now returns 0 on success. --Adam J. Richter 2002.11.08
  */
 int register_parisc_device(struct parisc_device *dev)
 {
-	struct parisc_driver *driver;
-
-	if (!dev)
-		return 0;
-
-	if (dev->driver)
-		return 1;
-	
-	spin_lock(&pa_lock);
-
-	/* Locate a driver which agrees to manage this device.  */
-	for (driver = pa_drivers; driver; driver = driver->next) {
-		if (!match_device(driver,dev))
-			continue;
-		if (driver->probe(dev) == 0)
-			break;
-	}
-
-	if (driver != NULL) {
-		claim_device(driver, dev);
-	}
-	spin_unlock(&pa_lock);
-	return driver != NULL;
+	return device_register(&dev->device);
 }
 
 #define BC_PORT_MASK 0x8
@@ -588,3 +511,8 @@
 		print_parisc_device(dev);
 	}
 }
+
+struct bus_type parisc_bus_type = {
+	.name =		"parisc",
+	.match =	parisc_match_device,
+};
diff -u -r linux-2.5.46/arch/parisc/kernel/perf.c linux/arch/parisc/kernel/perf.c
--- linux-2.5.46/arch/parisc/kernel/perf.c	Mon Nov  4 21:35:43 2002
+++ linux/arch/parisc/kernel/perf.c	Sat Nov  9 03:13:23 2002
@@ -527,7 +527,7 @@
 	/* TODO: this only lets us access the first cpu.. what to do for SMP? */
 	cpu_device = cpu_data[0].dev;
 	printk("Performance monitoring counters enabled for %s\n",
-		cpu_data[0].dev->name);
+		cpu_data[0].dev->device.name);
 
 	return 0;
 }
diff -u -r linux-2.5.46/arch/parisc/kernel/processor.c linux/arch/parisc/kernel/processor.c
--- linux-2.5.46/arch/parisc/kernel/processor.c	Mon Nov  4 21:35:44 2002
+++ linux/arch/parisc/kernel/processor.c	Sat Nov  9 03:13:04 2002
@@ -344,7 +344,7 @@
 				"model name\t: %s\n",
 				 boot_cpu_data.pdc.sys_model_name,
 				 cpu_data[n].dev ? 
-				 cpu_data[n].dev->name : "Unknown" );
+				 cpu_data[n].dev->device.name : "Unknown" );
 
 		seq_printf(m, "hversion\t: 0x%08x\n"
 			        "sversion\t: 0x%08x\n",
@@ -370,9 +370,11 @@
 };
 
 static struct parisc_driver cpu_driver = {
-	name:		"CPU",
-	id_table:	processor_tbl,
-	probe:		processor_probe
+	.id_table =	processor_tbl,
+	.probe =	processor_probe
+	.driver = {
+		.name =		"CPU",
+	},
 };
 
 /**
diff -u -r linux-2.5.46/arch/parisc/kernel/setup.c linux/arch/parisc/kernel/setup.c
--- linux-2.5.46/arch/parisc/kernel/setup.c	Mon Nov  4 21:35:44 2002
+++ linux/arch/parisc/kernel/setup.c	Sat Nov  9 03:10:26 2002
@@ -216,24 +216,24 @@
 }
 
 static struct resource central_bus = {
-	name:	"Central Bus",
-	start:	(unsigned long)0xfffffffffff80000,
-	end:    (unsigned long)0xfffffffffffaffff,
-	flags:	IORESOURCE_MEM,
+	.name =		"Central Bus",
+	.start =	(unsigned long)0xfffffffffff80000,
+	.end =		(unsigned long)0xfffffffffffaffff,
+	.flags =	IORESOURCE_MEM,
 };
 
 static struct resource local_broadcast = {
-	name:	"Local Broadcast",
-	start:	(unsigned long)0xfffffffffffb0000,
-	end:	(unsigned long)0xfffffffffffdffff,
-	flags:	IORESOURCE_MEM,
+	.name =		"Local Broadcast",
+	.start =	(unsigned long)0xfffffffffffb0000,
+	.end =		(unsigned long)0xfffffffffffdffff,
+	.flags =	IORESOURCE_MEM,
 };
 
 static struct resource global_broadcast = {
-	name:	"Global Broadcast",
-	start:	(unsigned long)0xfffffffffffe0000,
-	end:	(unsigned long)0xffffffffffffffff,
-	flags:	IORESOURCE_MEM,
+	.name =		"Global Broadcast",
+	.start =	(unsigned long)0xfffffffffffe0000,
+	.end =		(unsigned long)0xffffffffffffffff,
+	.flags =	IORESOURCE_MEM,
 };
 
 int __init parisc_init_resources(void)
diff -u -r linux-2.5.46/drivers/parisc/sba_iommu.c linux/drivers/parisc/sba_iommu.c
--- linux-2.5.46/drivers/parisc/sba_iommu.c	Fri Nov  8 01:28:15 2002
+++ linux/drivers/parisc/sba_iommu.c	Fri Nov  8 01:43:35 2002
@@ -1988,7 +1988,7 @@
 		return(1);
 	}
 
-	dev->sysdata = (void *) sba_dev;
+	parisc_set_drvdata(dev, sba_dev);
 	memset(sba_dev, 0, sizeof(struct sba_device));
 
 	for(i=0; i<MAX_IOC; i++)
@@ -2041,7 +2041,7 @@
  */
 void * sba_get_iommu(struct parisc_device *pci_hba)
 {
-	struct sba_device *sba = (struct sba_device *) pci_hba->parent->sysdata;
+	struct sba_device *sba = parisc_get_drvdata(pci_hba->parent);
 	char t = pci_hba->parent->id.hw_type;
 	int iocnum = (pci_hba->hw_path >> 3);	/* rope # */
 


From - Thu Nov 08 21:25:19 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:16686

Hi,

I usually build all my kernels as user and not as 0. With parisc this
doesn't work because you try to run
	palo -f ./palo.conf
and that needs to be done as superuser.

--- ... ---
nm vmlinux | grep -v '\(compiled\)\|\(\.o$\)\|\( [aUw] \)\|\(\.\.ng$\)\|\(LASH[RL]DI\)' | sort > System.map
A generic palo config file (./palo.conf) has been created for you.
You should check it and re-run "make palo".
WARNING: the "lifimage" file is now placed in this directory by default!
make: *** [palo] Error 1
--- ... ---


Suggestion: can we factor this out to be an own target like
modules_install, etc ?

Then one could do
	make dep && make bzImage && make modules
as user, the switch to su and do a
	make modules_install && make palo
or even run palo by hand...

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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Subject: Re: [parisc-linux] kernel build: make palo
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Xref: news.gmane.org gmane.linux.ports.parisc:16687

On Sat, 9 Nov 2002, Bjoern A. Zeeb wrote:

Hi,

sorry for replying to my own posting. ran out of cafe ;-)


> I usually build all my kernels as user and not as 0. With parisc this
> doesn't work because you try to run
> 	palo -f ./palo.conf
> and that needs to be done as superuser.
>
> --- ... ---
> nm vmlinux | grep -v '\(compiled\)\|\(\.o$\)\|\( [aUw] \)\|\(\.\.ng$\)\|\(LASH[RL]DI\)' | sort > System.map
> A generic palo config file (./palo.conf) has been created for you.
> You should check it and re-run "make palo".
> WARNING: the "lifimage" file is now placed in this directory by default!
> make: *** [palo] Error 1
> --- ... ---

ok had the wrong window.

--- ... ---
palo -f ./palo.conf
/dev/sda: Permission denied
palo version 1.1 bame@c3k Tue Aug  6 09:40:01 MDT 2002
ELF32 executable
make: *** [palo] Error 2
--- ... ---

this would be the correct error message but it's the same target
and problem anyway...

> Suggestion: can we factor this out to be an own target like
> modules_install, etc ?
>
> Then one could do
> 	make dep && make bzImage && make modules
> as user, the switch to su and do a
> 	make modules_install && make palo
> or even run palo by hand...
>
>

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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On Sat, Nov 09, 2002 at 02:49:27PM +0000, Bjoern A. Zeeb wrote:
> --- ... ---
> palo -f ./palo.conf
> /dev/sda: Permission denied
> palo version 1.1 bame@c3k Tue Aug  6 09:40:01 MDT 2002
> ELF32 executable
> make: *** [palo] Error 2
> --- ... ---
> 
> this would be the correct error message but it's the same target
> and problem anyway...
> 
> > Suggestion: can we factor this out to be an own target like
> > modules_install, etc ?
> >
> > Then one could do
> > 	make dep && make bzImage && make modules
> > as user, the switch to su and do a
> > 	make modules_install && make palo
> > or even run palo by hand...

Nothing stops you from doing:

make vmlinux
sudo make palo

as two separate steps.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] Untested port of parisc_device to generic device 
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First off, lets remember that this discussion started over two different, but 
related, problem sets.  One was the DMA api and the other was the device model.

As far as the DMA API goes, consistent memory allocation has always annoyed me 
because there are three separate cases

1. machine is consistent, consistent allocation always succeeds (unless we're 
out of memory)

2. machine is fully inconsistent, consistent allocation always fails.

3. Machine is partially consistent.  consistent allocation may fail because 
we're out of consistent memory so we have to fall back to the old.

What I'd like is an improvement to the DMA API where drivers can advertise 
levels of conformance (I only work with consistent memory or I work correctly 
with any dma'able memory and do all the sync points), and where all the sync 
point stuff optimises out for a machine architecture which is recognisably 
fully consistent at compile time.

Ok, I'll get off my soapbox now.  I never quite recovered from the awful 
#ifdef mess that doing the above correctly for the parisc introduced into the 
53c700 driver...

As far as the device model goes:

greg@kroah.com said:
> No, lets start pulling stuff out of pci_dev and relying on struct
> device.  The reason this hasn't happened yet is no one has been
> willing to break all of the PCI drivers, yet. 

I'd like to see that.  It's always annoyed me that my MCA machines have to 
bounce highmem just because they don't have a pci_dev to put the bounce mask 
in.

> The SCSI people are being drug kicking and screaming into it,
> _finally_ now (hell, SCSI is still not using the updated PCI
> interface, those people _never_ update their drivers if they can avoid
> it.)

That't not entirely fair.  Most of the unbroken drivers in the tree (those 
with active 2.5 maintainers) are using the up to date pci/dma interface.  The 
mid layer is `sort of' using the device api.

Where I'd like to see the device model go for SCSI is:

- we have a device node for every struct scsi_device (even unattached ones)

- unattached devices are really minimal entities with as few resources 
allocated as we can get away with, so we can have lazy attachment more easily.

- on attachment, the device node gets customised by the attachment type (and 
remember, we can have more than one attachment).

- whatever the permanent `name' field for the device is going to be needs to 
be writeable from user level, that way it can eventually be determined by the 
user level and simply written there as a string (rather than having all the 
wwn fallback cruft in the mid-layer).

- Ultimately, I'd like us to dump the host/channel/target numbering scheme in 
favour of the unique device node name (we may still number them in the 
mid-layer for convenience) so that we finesse the FC mapping problems---FC 
devices can embed the necessary identification in the target strings.

- Oh, and of course, we move to a hotplug/coldplug model where the root device 
is attached in initramfs and everything else is discovered in user space from 
the boot process.

> Patches for this stuff are going to be happening for quite some time
> now, don't despair.

> And they are greatly appreciated, and welcomed from everyone :) 

As far as extending the generic device model goes, I'll do it for the MCA bus. 
 I have looked at doing it previously, but giving the MCA bus a struct pci_dev 
is a real pain because of the underlying assumptions when one of these exists 
in an x86 machine.

But, while were on the subject of sorting out the device model abstraction, 
does the `power' node entry really belong at the top level?  It serves no 
purpose for something like a legacy MCA bus.

James




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Subject: Re: [parisc-linux] Untested port of parisc_device to generic device interface
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Matthew Wilcox wrote:
> On Fri, Nov 08, 2002 at 06:56:11PM -0700, Grant Grundler wrote:
> > They don't have PCI slots.
> > I hedge because HP makes a "card-mode Dino" type of card that will
> > fit into 715 which has a GSCtoPCI bus controller on-board along
> > with the target PCI device (eg 21143 tulip)
> 
> Sorry Grant, HP marketing has confused you ;-).  715/33, 715/50 &
> 715/75 have a PCX-T processor (can't do uncached pages), but don't have
> a GSC slot.

ok - well, that's why I pointed at the PCX-[ST] HWDB pages.

> The only machines with GSC and non-coherent memory are the T class
> (unsupportable..) and something like an F, G, H or I class with
> a GeckoBOA adapter... and we
> aren't claiming support for those either.

Right. I'm convinced support for V-class (PCI, IO Coherent) will happen
before T-class (propritary busses, !IO-coherent). Later FGHI-class also
use PCX-L CPU and thus should be ok. rbrad, christoph and a few others
are working on support for those machines but I know SCSI on those
machines is SPIFI-based (HP SCSI controller). In short, looks like
your observations about 53c720 might be one of the few problematic
drivers.

thanks,
grant


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On Sat, 9 Nov 2002, Matthew Wilcox wrote:

> > > Then one could do
> > > 	make dep && make bzImage && make modules
> > > as user, the switch to su and do a
> > > 	make modules_install && make palo
> > > or even run palo by hand...
>
> Nothing stops you from doing:
>
> make vmlinux
> sudo make palo
>
> as two separate steps.

yeah, but that's not the default (==documented) way of building a
linux kernel ;-)

linux/README:
" - Do a "make bzImage" to create a compressed kernel image."

it does not say "and update the config etc of your bootloader"


Also one does not need to run palo if one only substitutes a kernel
image in an ext2 fs I think. So this run does not seem to be
neccessary by default.



I suggest s.th. like the following (untested):

--- linux/arch/parisc/Makefile.orig	2002-11-09 14:43:40.000000000 +0000
+++ linux/arch/parisc/Makefile	2002-11-09 16:19:46.000000000 +0000
@@ -82,7 +82,7 @@
 libs-y					+= arch/parisc/lib/ \
 					   `$(CC) -print-libgcc-file-name`

-palo: vmlinux
+palo:
 	@if [ $$(palo -f /dev/null >/dev/null 2>&1 ; echo $$?) != 2 ]; then \
 		echo 'ERROR: Please install palo first (apt-get install palo)';\
 		echo 'or build it from source and install it somewhere in your $$PATH';\
@@ -101,19 +101,19 @@
 	export TOPDIR=`pwd`; \
 	unset STRIP LDFLAGS CPP CPPFLAGS AFLAGS CFLAGS CC LD; cd ../palo && make lifimage

-Image: palo
+Image: vmlinux

 Image-clean:

 ramdisk.o:

-zImage: palo
+zImage: vmlinux

-bzImage: palo
+bzImage: vmlinux

 compressed: zImage

-install:
+install: palo

 archmrproper:


-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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On Sat, Nov 09, 2002 at 10:02:06AM -0700, Grant Grundler wrote:
> Right. I'm convinced support for V-class (PCI, IO Coherent) will happen
> before T-class (propritary busses, !IO-coherent). Later FGHI-class also
> use PCX-L CPU and thus should be ok. rbrad, christoph and a few others
> are working on support for those machines but I know SCSI on those
> machines is SPIFI-based (HP SCSI controller). In short, looks like
> your observations about 53c720 might be one of the few problematic
> drivers.

F-I class kept PCX-T processors to the bitter end.  You're thinking of
E class, I think, which are all PCX-L.  Really, we're just waiting for
a V class to turn up in resource recovery to start work ;-)

Looking at the T600 in the hwdb..
        Miura LAN/Console (J2146A) -- completely unlike anything else
	Countach LAN/Console -- same as Diablo & KittyHawk CSY LAN/Console,
				doubt we care.
	Skunk SCSI -- its the SPIFI chip, probably supportable.
	Wizard SCSI -- also in E/K class, probably supportable too.
	Skunk Centronics -- also in E/K class, probably supportable.
	Emerald Console -- unique
	Java IOA -- unique

there's actually less unsupportable hardware in there than i thought,
but i'm still not really interested in it.

-- 
Revolutions do not require corporate support.


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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Untested port of parisc_device to generic device interface
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"Adam J. Richter" wrote:
> Please do not throw the baby out with the bath water.  The generic
> driver interface in its present form really can make parisc smaller
> and cleaner.

I hope that's true. I was just as disappointed as willy.

Documentation/driver-model/overview.txt:
| Note also that it is at the _end_ of struct pci_dev. This is
| to make people think about what they're doing when switching between the bus
| driver and the global driver; and to prevent against mindless casts between
| the two.

Until this changes, I don't see this as a useful replacement for
either PCI or parisc devices. The "mindless casts" can be fixed.
But without the ability to easily go from generic device type to
bus specific type, people will just get lost in the maze of pointers.

Common code needs to take a common parameter.  Operations on the tree
(eg probe) often require calls to bus specific (or arch or platform
specific) code which may in turn need to make other IO tree operations.
Those code paths convert back and forth between types regularly.
That's why I want to make it as simple as possible at the risk
a few people will get it wrong.

HPUX has had a "unified" IO tree since 10.0 in ~1994. Previous
releases had an IO tree for "Server IO" but not the PA-RISC
workstations. I've work on HPUX IO subsystem 6 years (PCI Code owner for
2 years) and it had several key features:
  (a) traverse the complete tree (from "central bus" to SCSI LUN)
      with shared code,
  (b) determine which type of bus any node was "on",
  (c) associate arbitrary local data with any node.
       (this includes bus *operations*! eg probe, dma, irq setup)

Maybe I'm not seeing it, but (b) and (c) are missing from basic
design or not well described in driver-model/overview.txt.

BTW, I couldn't find Documentation/filesystems/driverfs.txt.

Lastly, the example of an "irq" entry in overview.txt is interesting.
iosapic code "owns" the IRQ. And it could make visible other info
regarding IRQs - eg type and which CPU it's directed at.
But I get the feeling only bus specific code can do that since
it "owns" the directory. Do I misunderstand?

thanks,
grant


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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Untested port of parisc_device to generic device interface
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Matthew Wilcox wrote:
> F-I class kept PCX-T processors to the bitter end.  You're thinking of
> E class, I think, which are all PCX-L.

Ah ok - I probably am. It's been a few years since I've worked with
Nova class machines.

> Really, we're just waiting for
> a V class to turn up in resource recovery to start work ;-)

Won't be too much longer ;^)

> Looking at the T600 in the hwdb..
>         Miura LAN/Console (J2146A) -- completely unlike anything else
> 	Countach LAN/Console -- same as Diablo & KittyHawk CSY LAN/Console,
> 				doubt we care.
> 	Skunk SCSI -- its the SPIFI chip, probably supportable.
> 	Wizard SCSI -- also in E/K class, probably supportable too.
> 	Skunk Centronics -- also in E/K class, probably supportable.
> 	Emerald Console -- unique
> 	Java IOA -- unique

Java is a U2/UTurn compatible chip that only provides an IOMMU.
It's *NOT* IO Coherent.

Jolt is missing. It's the "Summit" to "Runway" busconverter.
Doesn't need any OS code execept when doing bus walks.

> there's actually less unsupportable hardware in there than i thought,
> but i'm still not really interested in it.

ditto - me either. I've suffered enough for that machine.

grant


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> > glibc 2.3.1 from debian CVS or upstream?
> 
> This is upstream with hppa patches from the debian tree. 

That's currently broke, and I've been slotting in my time to fix this.
Currently rebuilding glibc :}
 
> The report was probably bad. In the mail thread I mentioned in my
> previous mail, the nanosleep in the kernel was fixed because of
> threading problems. If I understand it correctly, threading will always
> have problems without a realy working nanosleep.
 
Yes. You'll see it's use sprinkled in linuxthreads/* and in particular 
spinlock.c

c.



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Subject: [parisc-linux] 2.5.46-pa7 boot prob
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Hi,

run it through ksymoops but got nothing usable. Only
stack dump was printed...

If you need more information please let me know.


Linux version 2.5.46-pa7 (bz@apollo) (gcc version 3.2) #3 Sat Nov 9 16:51:14 UTC 2002
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 000060b0 00000481 00000000 00000000 78356107 00000000 00000004 00000072 00000072
vers  0000000b
model 9000/715
Total Memory: 96 Mb
pagetable_init
On node 0 totalpages: 24576
  DMA zone: 24576 pages, LIFO batch:6
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Building zonelist for node : 0
Kernel command line: root=/dev/sda3 HOME=/ TERM=linux console=ttyS0 palo_kernel=3/boot/vmlinux-2.5.46-pa7
...
Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing disabled
ttyS0 at MMIO 0xf0105800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xf0202800 (irq = 121) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
STI GSC/PCI graphics driver version 0.9
STI byte mode ROM at f4000000, hpa at f4000000
STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071A_Z
STI word mode ROM at f0025000, hpa at f8000000
STI id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1280

Stack Dump:
 15fb07c0:  0004ff0f 00000000 00000000 00000000
 15fb07b0:  00000000 10141cc4 00000000 00000000
 15fb07a0:  00000000 10362010 00000066 102a7ce4
 15fb0790:  00000000 10061c00 10362010 10029c60
 15fb0780:  000000a0 00000000 00000000 00000000
 15fb0770:  00000000 101f0814 1010d2e4 00000000
 15fb0760:  00000000 00000000 00000188 00000000
 15fb0750:  00000000 10360810 1029e810 00000000
 15fb0740:  00000000 00000000 41000000 00000000
 15fb0730:  40800000 101bfb18 40000000 00000000
 15fb0720:  00008124 00000000 00000000 00000000
 15fb0710:  00000000 1029e940 00000000 00000000

Kernel addresses on the stack:
 [<10141cc4>]  [<101f0814>]  [<1010d2e4>]  [<101bfb18>]
 [<101bfc78>]  [<101bfb18>]  [<101c0068>]  [<101459cc>]
 [<10125878>]  [<10141f58>]  [<10142100>]  [<101ee63c>]
 [<101ee0c4>]  [<101459cc>]  [<101bfda4>]  [<101c4168>]
 [<10141f58>]  [<101ed0f8>]  [<10121d70>]  [<10144c7c>]
 [<10100198>]  [<10109c54>]

Kernel Fault: Code=26 regs=15fb07c0 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 00000000 101f0814 102a7ce4
r04-07  00000500 102a7ce4 00002000 10061c00
r08-11  10362010 10029c60 00000400 1029e940
r12-15  000000a0 00000140 00000040 00000000
r16-19  00005000 15fb04c8 15f4d000 00000013
r20-23  00000000 00000000 10029c60 00000001
r24-27  00000000 00080000 00000000 1027e010
r28-31  00000000 00000400 15fb07c0 101f4264
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101f4290 101f4294
 IIR: 0ea01085    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 15fb0000 CR31: 102b7000
 ORIG_R28: 00000000


-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/




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In reference to a message from Bjoern A. Zeeb, dated Nov 09:
> run it through ksymoops but got nothing usable. Only
> stack dump was printed...

yeah, we haven't gotten ksymoops to work yet...

> If you need more information please let me know.

In general, a System.map file that corresponds to your kernel is also
needed.

from the reg dump:

> r20-23  00000000 00000000 10029c60 00000001
>  IIR: 0ea01085    ISR: 00000000  IOR: 00000000

it's a null ptr deref...
faulting insn is: ldw 0(sr0,r21),r5
and r21 is 0...

can you either supply a System.map, or look up the 
"iaoq" and "r02" addresses in the register dump and see which function
they are in?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Sat, 9 Nov 2002, Randolph Chung wrote:

> > If you need more information please let me know.
>
> In general, a System.map file that corresponds to your kernel is also
> needed.

you can find it on:

http://www.zabbadoz.net/zabbadoz-network/apollo/linux-testing/

http://www.zabbadoz.net/zabbadoz-network/apollo/linux-testing/System.map-2.5.46-pa7
http://www.zabbadoz.net/zabbadoz-network/apollo/linux-testing/config-2.5.46-pa7

and full startup log from serial console:

http://www.zabbadoz.net/zabbadoz-network/apollo/linux-testing/apollo-2.5.46-pa7.01

> from the reg dump:
>
> > r20-23  00000000 00000000 10029c60 00000001
> >  IIR: 0ea01085    ISR: 00000000  IOR: 00000000
>
> it's a null ptr deref...
> faulting insn is: ldw 0(sr0,r21),r5
> and r21 is 0...
>
> can you either supply a System.map, or look up the
> "iaoq" and "r02" addresses in the register dump and see which function
> they are in?

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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James Bottomley wrote:
>3. Machine is partially consistent.  consistent allocation may fail because 
>we're out of consistent memory so we have to fall back to the old.

	I'd like to know more about what these machines look
like in the real world.  Specifically, I am interested in the
trade-off of having a parameter to wback_fake_consistent
so that it could be enabled or disabled on an individual basis.

	I suspect that the parameter is not worth the clutter because
these "partially consistent" machines either have a large amount of
consistent memory, so the case of the allocation failing in the is not
worth supporting, or it is easy to check for consistent memory on them
with something like "if ((unsigned long) vaddr < 0xwhatever)", but I'm
just guessing.

Adam J. Richter     __     ______________   575 Oroville Road
adam@yggdrasil.com     \ /                  Miplitas, California 95035
+1 408 309-6081         | g g d r a s i l   United States of America
                         "Free Software For The Rest Of Us."




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Grant Grundler writes:
>Documentation/driver-model/overview.txt:
>| Note also that it is at the _end_ of struct pci_dev. This is
>| to make people think about what they're doing when switching between the bus
>| driver and the global driver; and to prevent against mindless casts between
>| the two.
>
>Until this changes, I don't see this as a useful replacement for
>either PCI or parisc devices. The "mindless casts" can be fixed.
>But without the ability to easily go from generic device type to
>bus specific type, people will just get lost in the maze of pointers.

	linux-2.5.46/include/linux/kernel.h already defines
container_of(ptr_to_element, parent_struct, element_name).

>From <linux/pci.h>:
#define to_pci_dev(n) container_of(n, struct pci_dev, dev)

>From <linux/usb.h>:
#define to_usb_device(d) container_of(d, struct usb_device, dev)

>From <asm-parisc/hardware.h> with my parisc device patch:
static inline struct parisc_device *to_parisc_dev(struct device *dev)
{
        return container_of(dev, struct parisc_device, device);
}

Adam J. Richter     __     ______________   575 Oroville Road
adam@yggdrasil.com     \ /                  Miplitas, California 95035
+1 408 309-6081         | g g d r a s i l   United States of America
                         "Free Software For The Rest Of Us."


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adam@yggdrasil.com said:
> 
> 	I'd like to know more about what these machines look like in the real
> world.  Specifically, I am interested in the trade-off of having a
> parameter to wback_fake_consistent so that it could be enabled or
> disabled on an individual basis.

Actually, so would I.  I can suspect why there might exist machines like this 
(say the consistent attribute is settable at the pgd level)

> 	I suspect that the parameter is not worth the clutter because these
> "partially consistent" machines either have a large amount of
> consistent memory, so the case of the allocation failing in the is not
> worth supporting, or it is easy to check for consistent memory on them
> with something like "if ((unsigned long) vaddr < 0xwhatever)", but I'm
> just guessing. 

Well, if it has to be done, it can be done by making alloc_consistent return a 
handle rather than an address and making wback/invalidate take the handle (but 
it's certainly not ideal).

James




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On Sat, Nov 09, 2002 at 09:01:29PM -0500, J.E.J. Bottomley wrote:
> Actually, so would I.  I can suspect why there might exist machines like this 
> (say the consistent attribute is settable at the pgd level)

well, there's a limited amount of space available for consistent mappings
on some machines.  it's basically the same as the vmalloc space.  i think
the best way to handle this is simply to fail to initialise if you can't
get the consistent memory you need.

-- 
Revolutions do not require corporate support.


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On Sat, Nov 09, 2002 at 05:21:50AM +0000, Matthew Wilcox wrote about
generic device models:
> And, for gods sake, don't fuck it up by integrating it with USB too early
> in the game.

	Without rewriting everything, I could see creating a common
device container for devices connected directly to the CPU's memory,
IO or interrupt busses (PCI, ISA, sbus, etc.) so as not to increase
the memory size of device and device_driver for non-mapped device
types (USB, firewire, SCSI, etc.).  More importantly, this change
would provide some type checking for operations that are really only
meaningful on CPU mapped devices, such as the "generic"
dma_{alloc,free}_consistent() and related functions.  I imagine
something like this:


struct cpu_mapped_device {
	dma_addr_t		dma_mask;
	/* Initialized from parent->dma_mask and driver->dma_restrictions. */
	void			*prealloc_vaddr;
	void 			*prealloc_busaddr;
	struct device		device;
};

struct cpu_mapped_driver {
	struct io_restrictions	*dma_restrictions;
	int			prealloc_consistent;
	int			fake_consistent_ok : 1;
	struct device_driver	driver;
};

struct device {
	...
	struct resource_list		*resources;
	/* For automatic release of memory ranges, IO ports, DMA channels,
	   IRQ's, SCSI ID's, SCSI LUN's within an ID, USB device ID's,
	   etc.  (but not USB hub ports, and PCMCIA slots, which we can
	   released before ->remove() is called). */

	dma_pool_t			dma_stub_pool[2];
	struct cpu_mapped_device	*dma_dev;
	/* Points to the cpu_mapped_device that we are embedded in for PCI,
	   ISA, and other cpu mapped devices.  Points to the parent
	   cpu mapped device for others, such as the USB controller for a
	   USB network interface.   Will be used for allocating DMA gather
	   scatter stubs when allocating skbuff's, bio's, scsi_request's,
	   USB request blocks, etc., eliminating another set of error
	   branches. */
};

Adam J. Richter     __     ______________   575 Oroville Road
adam@yggdrasil.com     \ /                  Miplitas, California 95035
+1 408 309-6081         | g g d r a s i l   United States of America
                         "Free Software For The Rest Of Us."


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PA,

These patches apply and build glibc 2.3.1, but we have interesting
testsuite failures :}

In particular ex10 in the linuxthreads testsuite deadlocks and has to be
killed by hand to continue testing.

We also fail a number of "needed" tests in the elf section. These tests
cover the loading of DSO's with dlopen. Wether these are binutils bugs
is yet to be seen.

Lastly, I think that the fp* tests suffer from the printf bug?

Pathes at:
http://www.baldric.uwo.ca/~carlos/upstream-patches.tar.gz

I don't think we are ready to push this into unstable until we iron out
a few more of these bugs :(

c.



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> Lastly, I think that the fp* tests suffer from the printf bug?

I am fairly certain that this is fixed in gcc 3.2/3.3.  Could you
do a build with the mainline gcc cvs?  I am interested in feedback.
as I am trying to squash as many bugs as possible in 3.3 while it's
still open for general bug fixing.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Sun, Nov 10, 2002 at 08:05:17PM -0500, Carlos O'Donell wrote:
> Lastly, I think that the fp* tests suffer from the printf bug?

Last I looked, we suffered from the fact that glibc thinks `long double'
is 96 bits, gcc thinks `long double' is 64 bits and gcc-hpux thinks that
`long double' is 128 bits.  I've been whining about this for over a year
and nothing's happened.  I think it's fairly clear that not much uses
long double, otherwise we'd've noticed more failure cases.  So changing
both gcc & glibc to a 128-bit long double is the Right Thing to do and
we can just suck up this ABI breakage.

In case anyone's wondering, the architecture specifies 32-bit, 64-bit and
128-bit floating point registers as being available.  My understanding is
that no processor has actually implemented the 128-bit floating point ops
(except maybe load and store) and they always trap to the FP emulation
code (which we copied from HPUX).

-- 
Revolutions do not require corporate support.


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> In case anyone's wondering, the architecture specifies 32-bit, 64-bit and
> 128-bit floating point registers as being available.  My understanding is
> that no processor has actually implemented the 128-bit floating point ops
> (except maybe load and store) and they always trap to the FP emulation
> code (which we copied from HPUX).

Paul Bame was working on getting HP to release their long double library
code.  I haven't heard what the status is.  If he gets the code, then it
should be relatively straight forward to integrate into libgcc and use
the same code as for hpux.  Can glibc handle 128-bit long doubles as
that's the size long doubles will be if we get the code?

There are two tests in the libstdc++-v3 suite that fail because of this.
However, there can't be much in the way of real world code that actually
uses long doubles.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> 
> Paul Bame was working on getting HP to release their long double library
> code.  I haven't heard what the status is.  If he gets the code, then it
> should be relatively straight forward to integrate into libgcc and use
> the same code as for hpux.  Can glibc handle 128-bit long doubles as
> that's the size long doubles will be if we get the code?
> 
> There are two tests in the libstdc++-v3 suite that fail because of this.
> However, there can't be much in the way of real world code that actually
> uses long doubles.
> 

It looks we have the framework. The glibc tree has sysdeps/ieee754/ldbl-128 
which looks to be used by hppa and sparc64. The code was last touched by
Jakub Jelinek in 2002-09-09 (cleaning up some cruft). ldlb-128 does get
parsed as one of the generic-dirs in Make-dist. For all intents and
purposes we have soft-emulated support :)

c.



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> It looks we have the framework. The glibc tree has sysdeps/ieee754/ldbl-128 
> which looks to be used by hppa and sparc64. The code was last touched by
> Jakub Jelinek in 2002-09-09 (cleaning up some cruft). ldlb-128 does get
> parsed as one of the generic-dirs in Make-dist. For all intents and
> purposes we have soft-emulated support :)

Then, I should look at what sparc64 is doing and maybe all we need to do
is implement something similar.  We may not need the HP stuff.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Then, I should look at what sparc64 is doing and maybe all we need to do
> is implement something similar.  We may not need the HP stuff.

Nope, we need it.  Sparc uses library calls like "_Q_add" for the basic
operations on quad values.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] 9000/712 and C2490A harddisk
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This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.

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Hi

I've a 9000/712/80 and a harddisk labeled "C2490A" and "HP". On the HP
website I found 2 kinds of info on this harddisk: It shows in the result of
an `ioscan` in a lot of tape related documents and there are some hits in
the HP-UX patches database that it is not bootable (around 1995/1996) in
some systems.

Has anyone some more info on this drive? I'd like to use it in my 9000/712
since the drive that came with it has currently 0 rpm (it does not spin
anymore). 

I like to know:
the pin-out (including the  position of pin-1, the connector does not make
this clear)
can the 9000/712 boot from it (is it worth the effort)

I've the impression it is a 2.x GB, 7200rpm harddisk and I've been told it
is a relabeled Seagate (then which one?)


Thanks in advance,

CBee



--
C. Beerse
mailto:c.beerse@torex-hiscom.nl
talkto:+31(71)5256660

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5.5.2654.45">
<TITLE>9000/712 and C2490A harddisk</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>Hi</FONT>
</P>

<P><FONT SIZE=3D2>I've a 9000/712/80 and a harddisk labeled =
&quot;C2490A&quot; and &quot;HP&quot;. On the HP website I found 2 =
kinds of info on this harddisk: It shows in the result of an `ioscan` =
in a lot of tape related documents and there are some hits in the HP-UX =
patches database that it is not bootable (around 1995/1996) in some =
systems.</FONT></P>

<P><FONT SIZE=3D2>Has anyone some more info on this drive? I'd like to =
use it in my 9000/712 since the drive that came with it has currently 0 =
rpm (it does not spin anymore). </FONT></P>

<P><FONT SIZE=3D2>I like to know:</FONT>
<BR><FONT SIZE=3D2>the pin-out (including the&nbsp; position of pin-1, =
the connector does not make this clear)</FONT>
<BR><FONT SIZE=3D2>can the 9000/712 boot from it (is it worth the =
effort)</FONT>
</P>

<P><FONT SIZE=3D2>I've the impression it is a 2.x GB, 7200rpm harddisk =
and I've been told it is a relabeled Seagate (then which one?)</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Thanks in advance,</FONT>
</P>

<P><FONT SIZE=3D2>CBee</FONT>
</P>
<BR>
<BR>

<P><FONT SIZE=3D2>--</FONT>
<BR><FONT SIZE=3D2>C. Beerse</FONT>
<BR><FONT SIZE=3D2><A =
HREF=3D"mailto:c.beerse@torex-hiscom.nl">mailto:c.beerse@torex-hiscom.nl=
</A></FONT>
<BR><FONT SIZE=3D2>talkto:+31(71)5256660</FONT>
</P>

</BODY>
</HTML>
------_=_NextPart_001_01C28984.2A3CC7F0--


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From: Holger Grothe <grothe@mathematik.tu-darmstadt.de>
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On Mon, Nov 11, 2002 at 02:13:45PM +0100, "Beerse, Corn?" wrote:
> Hi
> 
> I've a 9000/712/80 and a harddisk labeled "C2490A" and "HP". On the HP
> website I found 2 kinds of info on this harddisk: It shows in the result of
> an `ioscan` in a lot of tape related documents and there are some hits in
> the HP-UX patches database that it is not bootable (around 1995/1996) in
> some systems.
> 
> Has anyone some more info on this drive? I'd like to use it in my 9000/712
> since the drive that came with it has currently 0 rpm (it does not spin
> anymore). 
>
Search for 2490 on http://www.pc-disk.de/

HTH, Holger
-- 
Holger Grothe  (Email: grothe@mathematik.tu-darmstadt.de)
Fachbereich Mathematik, TU Darmstadt


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> 
> Nope, we need it.  Sparc uses library calls like "_Q_add" for the basic
> operations on quad values.
> 
> Dave

We need it or else we have to fall back on completely software emulated
quad arithmetic. Though the framework for replacing all those function
calls is available.

Note that GMP was included in the libc tree at one point, but recently
it's rotted away and Roland was recently removing the last bits in
2002-09-20. I'm not sure what ever came of this? It looks like GMP 2.0
was pushed into the tree in '96 as a generic method for doing unlimited
precision math?

I've only just realized how usefull having extremely descriptive 
Changelog's can be :)

c.



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> We need it or else we have to fall back on completely software emulated
> quad arithmetic. Though the framework for replacing all those function
> calls is available.

As Willy mentioned, no PA processors actually implement quad arithmetic
at this time although it is part of the PA 2.0 architecture.  So, we
have to use software emulation and there is no point at this time
in adding the quad arithmetic ops to pa.md definition.  The simplest
approach is to use the libcall interface already implemented for hpux
(see pa/long_double.h).

> Note that GMP was included in the libc tree at one point, but recently
> it's rotted away and Roland was recently removing the last bits in
> 2002-09-20. I'm not sure what ever came of this? It looks like GMP 2.0
> was pushed into the tree in '96 as a generic method for doing unlimited
> precision math?

While GMP is a useful package, it doesn't emulate IEEE 754 arithmetic.
That's what we need here.  There's a floating point emulator in gcc/real.c
but I think the HP library would be superior.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > We need it or else we have to fall back on completely software emulated
> > quad arithmetic. Though the framework for replacing all those function
> > calls is available.
> 
> As Willy mentioned, no PA processors actually implement quad arithmetic
> at this time although it is part of the PA 2.0 architecture.  So, we
> have to use software emulation and there is no point at this time
> in adding the quad arithmetic ops to pa.md definition.  The simplest
> approach is to use the libcall interface already implemented for hpux
> (see pa/long_double.h).

Ah yes, correct, I had forgotten that it was never implemented in
silica. So you suggest we not implement this in libc but rather in gcc,
may I ask why?

> While GMP is a useful package, it doesn't emulate IEEE 754 arithmetic.
> That's what we need here.  There's a floating point emulator in gcc/real.c
> but I think the HP library would be superior.

I'm pretty sure that MPFR library in GMP can emulate IEEE 754 arithmetic, 
though I could be wrong.

c.


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> > Lastly, I think that the fp* tests suffer from the printf bug?
> 
> I am fairly certain that this is fixed in gcc 3.2/3.3.  Could you
> do a build with the mainline gcc cvs?  I am interested in feedback.
> as I am trying to squash as many bugs as possible in 3.3 while it's
> still open for general bug fixing.
> 

carlos@firin:/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3$ hppa-linux-gcc-3.3 -v
Reading specs from /mnt/flaire/palinux/bin/../lib/gcc-lib/hppa-linux/3.3/specs
Configured with: ../gcc/configure --target=hppa-linux --build=hppa-linux --host=hppa-linux
--prefix=/mnt/flaire/palinux/ --enable-languages=c
Thread model: posix
gcc version 3.3 20021110 (experimental)

carlos@firin:/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3$ ld -v
GNU ld version 2.13.90.0.10 20021010 Debian GNU/Linux

Latest CVS of glibc.2.3.1 with HPPA patches applied.

make[2]: Entering directory `/mnt/flaire/src/glibc-upstream-cvs/libc/glibc-2.3.1/linuxthreads'
hppa-linux-gcc-3.3 ../linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c -c -std=gnu99 -O2
-Wall -Winline -Wstrict-prototypes -Wwrite-strings -g    -g0 -fPIC -fno-inline-functions
-I../include -I. -I/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/linuxthreads -I.. -I../libio
-I/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3 -I../sysdeps/hppa/elf
-I../linuxthreads/sysdeps/unix/sysv/linux/hppa -I../linuxthreads/sysdeps/unix/sysv/linux
-I../linuxthreads/sysdeps/pthread -I../sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv
-I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/hppa -I../sysdeps/unix/sysv/linux/hppa
-I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman
-I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix -I../sysdeps/posix
-I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32
-I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa
-I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic  -I
/lib/modules/2.4.19-pa22/build/include -D_LIBC_REENTRANT -include ../include/libc-symbols.h       -S
-g0 -fPIC -fno-inline-functions -finhibit-size-directive \
        -fno-exceptions -o
/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/linuxthreads/pt-initfini.s
../linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c:44:10: missing terminating " character
../linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c:46:10: #include expects "FILENAME" or
<FILENAME>../linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c:51: error: request for member
`section' in something not a structure or union
../linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c:52: error: parse error before numeric
constant
../linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c:54: error: syntax error at '@' token
../linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c:75: error: stray '\' in program
../linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c:75:34: missing terminating " character
../linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c:86: error: syntax error at '@' token
../linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c:102: error: stray '\' in program
../linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c:102:34: missing terminating " character
../linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c:110:1: missing terminating " character
make[2]: *** [/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/linuxthreads/pt-initfini.s] Error 1
make[2]: Leaving directory `/mnt/flaire/src/glibc-upstream-cvs/libc/glibc-2.3.1/linuxthreads'
make[1]: *** [linuxthreads/others] Error 2
make[1]: Leaving directory `/mnt/flaire/src/glibc-upstream-cvs/libc/glibc-2.3.1'
make: *** [all] Error 2

Looks like we need some __asm format fixes?

c.



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> Ah yes, correct, I had forgotten that it was never implemented in
> silica. So you suggest we not implement this in libc but rather in gcc,
> may I ask why?

I don't have a strong opinion on this.  Probably, the routines should
be in libc.  However, it's probably simple also to put them in libgcc
which contains some arithmetic operations.  Some work in gcc would
be needed in any event to integrate the package.

> > While GMP is a useful package, it doesn't emulate IEEE 754 arithmetic.
> > That's what we need here.  There's a floating point emulator in gcc/real.c
> > but I think the HP library would be superior.
> 
> I'm pretty sure that MPFR library in GMP can emulate IEEE 754 arithmetic, 
> though I could be wrong.

I found the quad double package at the mpfr site.  However, its double
double differs from the IEEE quad precision representation.  A double double
is a representation using two IEEE doubles.  This is fine as a separate
library but not the IEEE implementation we are looking for.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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=?iso-8859-1?Q?=22Beerse=2C_Corn=E9=22?= wrote:
> I like to know:
> the pin-out (including the  position of pin-1, the connector does not make
> this clear)

sorry - don't have this handy. You'll have to search for it.

> can the 9000/712 boot from it (is it worth the effort)

yes.

> I've the impression it is a 2.x GB, 7200rpm harddisk and I've been told it
> is a relabeled Seagate (then which one?)

I'm pretty sure it's not.
IIRC, that was the last model disk drive that HP "DMD" designed/made.

grant


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> Looks like we need some __asm format fixes?

These are the changes that I had for glibc-2.2.5-14 to build with gcc-3.3.
The string literal change makes the asms ugly but I think we have to live
with it.  I don't know the ins and outs of why the change was necessary
but I know the cpp people will not change back.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

--- ./sysdeps/hppa/elf/initfini.c.orig	2001-07-09 17:56:22.000000000 -0700
+++ ./sysdeps/hppa/elf/initfini.c	2002-09-11 12:58:18.000000000 -0700
@@ -39,84 +39,84 @@
    making the comparison and indirect call is quite expensive (see the
    comment in sysdeps/generic/initfini.c). */
 
-__asm__ ("
-
-#include \"defs.h\"
-
-/*@HEADER_ENDS*/
-
-/*@_init_PROLOG_BEGINS*/
-	.section .init
-	.align 4
-	.globl _init
-	.type _init,@function
-_init:
-	stw	%rp,-20(%sp)
-	stwm	%r4,64(%sp)
-	stw	%r19,-32(%sp)
-	bl	__gmon_start__,%rp
-	copy	%r19,%r4	/* delay slot */
-	copy	%r4,%r19
-/*@_init_PROLOG_ENDS*/
-
-/*@_init_EPILOG_BEGINS*/
-        .text
-        .align 4
-        .weak   __gmon_start__
-        .type    __gmon_start__,@function
-__gmon_start__:
-	.proc
-	.callinfo
-	.entry
-        bv,n %r0(%r2)
-	.exit
-	.procend
-
-/* Here is the tail end of _init.  We put __gmon_start before this so
-   that the assembler creates the .PARISC.unwind section for us, ie.
-   with the right attributes.  */
-	.section .init
-	ldw	-84(%sp),%rp
-	copy	%r4,%r19
-	bv	%r0(%rp)
-_end_init:
-	ldwm	-64(%sp),%r4
-
-/* Our very own unwind info, because the assembler can't handle
-   functions split into two or more pieces.  */
-	.section .PARISC.unwind
-	.extern _init
-	.word	_init, _end_init
-	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
-
-/*@_init_EPILOG_ENDS*/
-
-/*@_fini_PROLOG_BEGINS*/
-	.section .fini
-	.align 4
-	.globl _fini
-	.type _fini,@function
-_fini:
-	stw	%rp,-20(%sp)
-	stwm	%r4,64(%sp)
-	stw	%r19,-32(%sp)
-	copy	%r19,%r4
-/*@_fini_PROLOG_ENDS*/
-
-/*@_fini_EPILOG_BEGINS*/
-	.section .fini
-	ldw	-84(%sp),%rp
-	copy	%r4,%r19
-	bv	%r0(%rp)
-_end_fini:
-	ldwm	-64(%sp),%r4
-
-	.section .PARISC.unwind
-	.extern _fini
-	.word	_fini, _end_fini
-	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
-
-/*@_fini_EPILOG_ENDS*/
-
-/*@TRAILER_BEGINS*/
+__asm__ ("\n\
+\n\
+#include \"defs.h\"\n\
+\n\
+/*@HEADER_ENDS*/\n\
+\n\
+/*@_init_PROLOG_BEGINS*/\n\
+	.section .init\n\
+	.align 4\n\
+	.globl _init\n\
+	.type _init,@function\n\
+_init:\n\
+	stw	%rp,-20(%sp)\n\
+	stwm	%r4,64(%sp)\n\
+	stw	%r19,-32(%sp)\n\
+	bl	__gmon_start__,%rp\n\
+	copy	%r19,%r4	/* delay slot */\n\
+	copy	%r4,%r19\n\
+/*@_init_PROLOG_ENDS*/\n\
+\n\
+/*@_init_EPILOG_BEGINS*/\n\
+        .text\n\
+        .align 4\n\
+        .weak   __gmon_start__\n\
+        .type    __gmon_start__,@function\n\
+__gmon_start__:\n\
+	.proc\n\
+	.callinfo\n\
+	.entry\n\
+        bv,n %r0(%r2)\n\
+	.exit\n\
+	.procend\n\
+\n\
+/* Here is the tail end of _init.  We put __gmon_start before this so\n\
+   that the assembler creates the .PARISC.unwind section for us, ie.\n\
+   with the right attributes.  */\n\
+	.section .init\n\
+	ldw	-84(%sp),%rp\n\
+	copy	%r4,%r19\n\
+	bv	%r0(%rp)\n\
+_end_init:\n\
+	ldwm	-64(%sp),%r4\n\
+\n\
+/* Our very own unwind info, because the assembler can't handle\n\
+   functions split into two or more pieces.  */\n\
+	.section .PARISC.unwind\n\
+	.extern _init\n\
+	.word	_init, _end_init\n\
+	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\n\
+\n\
+/*@_init_EPILOG_ENDS*/\n\
+\n\
+/*@_fini_PROLOG_BEGINS*/\n\
+	.section .fini\n\
+	.align 4\n\
+	.globl _fini\n\
+	.type _fini,@function\n\
+_fini:\n\
+	stw	%rp,-20(%sp)\n\
+	stwm	%r4,64(%sp)\n\
+	stw	%r19,-32(%sp)\n\
+	copy	%r19,%r4\n\
+/*@_fini_PROLOG_ENDS*/\n\
+\n\
+/*@_fini_EPILOG_BEGINS*/\n\
+	.section .fini\n\
+	ldw	-84(%sp),%rp\n\
+	copy	%r4,%r19\n\
+	bv	%r0(%rp)\n\
+_end_fini:\n\
+	ldwm	-64(%sp),%r4\n\
+\n\
+	.section .PARISC.unwind\n\
+	.extern _fini\n\
+	.word	_fini, _end_fini\n\
+	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\n\
+\n\
+/*@_fini_EPILOG_ENDS*/\n\
+\n\
+/*@TRAILER_BEGINS*/\n\
 ");
--- ./linuxthreads/internals.h.orig	2002-09-11 12:16:03.000000000 -0700
+++ ./linuxthreads/internals.h	2002-09-13 11:09:35.000000000 -0700
@@ -555,11 +555,11 @@
 /* Prototypes for compatibility functions.  */
 extern int __pthread_attr_init_2_1 (pthread_attr_t *__attr);
 extern int __pthread_attr_init_2_0 (pthread_attr_t *__attr);
-extern int __pthread_create_2_1 (pthread_t *__restrict __thread,
+extern int __pthread_create_2_1 (pthread_t *__restrict __thr,
 				 const pthread_attr_t *__attr,
 				 void *(*__start_routine) (void *),
 				 void *__restrict __arg);
-extern int __pthread_create_2_0 (pthread_t *__restrict thread,
+extern int __pthread_create_2_0 (pthread_t *__restrict __thr,
 				 const pthread_attr_t *__attr,
 				 void *(*__start_routine) (void *),
 				 void *__restrict arg);
--- ./linuxthreads/sysdeps/pthread/pthread.h.orig	2001-03-20 08:44:41.000000000 -0800
+++ ./linuxthreads/sysdeps/pthread/pthread.h	2002-09-11 12:38:24.000000000 -0700
@@ -160,7 +160,7 @@
 /* Create a thread with given attributes ATTR (or default attributes
    if ATTR is NULL), and call function START_ROUTINE with given
    arguments ARG.  */
-extern int pthread_create (pthread_t *__restrict __thread,
+extern int pthread_create (pthread_t *__restrict __thr,
 			   __const pthread_attr_t *__restrict __attr,
 			   void *(*__start_routine) (void *),
 			   void *__restrict __arg) __THROW;
@@ -588,7 +588,7 @@
 extern int pthread_setcanceltype (int __type, int *__oldtype) __THROW;
 
 /* Cancel THREAD immediately or at the next possibility.  */
-extern int pthread_cancel (pthread_t __thread) __THROW;
+extern int pthread_cancel (pthread_t __thr) __THROW;
 
 /* Test for pending cancellation for the current thread and terminate
    the thread as per pthread_exit(PTHREAD_CANCELED) if it has been
--- ./linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h.orig	2000-09-11 10:32:02.000000000 -0700
+++ ./linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h	2002-09-11 12:43:37.000000000 -0700
@@ -33,6 +33,6 @@
 			    __sigset_t *__restrict __oldmask)__THROW;
 
 /* Send signal SIGNO to the given thread. */
-extern int pthread_kill (pthread_t __thread, int __signo) __THROW;
+extern int pthread_kill (pthread_t __thr, int __signo) __THROW;
 
 #endif	/* bits/sigthread.h */


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> 
> I don't have a strong opinion on this.  Probably, the routines should
> be in libc.  However, it's probably simple also to put them in libgcc
> which contains some arithmetic operations.  Some work in gcc would
> be needed in any event to integrate the package.
> 

I've just seen recent binutils ditatrabe about how we have copies of
math libraries floating between glibc, gcc and the kernel.

What do we gain from putting it in gcc?
	- ?

What do we gain from putting it libc?
	- More frequent package updates?
	- IMO easier to debug?

Why are there math functions in libgcc in the first place?
Historical reasons?

> > I'm pretty sure that MPFR library in GMP can emulate IEEE 754 arithmetic, 
> > though I could be wrong.
> 
> I found the quad double package at the mpfr site.  However, its double
> double differs from the IEEE quad precision representation.  A double double
> is a representation using two IEEE doubles.  This is fine as a separate
> library but not the IEEE implementation we are looking for.
> 

Okay.

c.


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> Why are there math functions in libgcc in the first place?
> Historical reasons?

Well, for closed systems like hpux, it was necessary if the compiler
needed the function.  We are talking here about basic operations on
floats and ints (see config/fp-bit.[ch] and libgcc2.c).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Mon, Nov 11, 2002 at 12:36:25PM -0500, John David Anglin wrote:
> > Looks like we need some __asm format fixes?
> 
> These are the changes that I had for glibc-2.2.5-14 to build with gcc-3.3.
> The string literal change makes the asms ugly but I think we have to live
> with it.  I don't know the ins and outs of why the change was necessary
> but I know the cpp people will not change back.

> +	stw	%rp,-20(%sp)\n\
> +	stwm	%r4,64(%sp)\n\
> +	stw	%r19,-32(%sp)\n\

By and large we've preferred the following style which is less ugly, IMO:

"	stw	%rp,-20(%sp)\n"
"	stwm	%r4,64(%sp)\n"
"	stw	%r19,-32(%sp)\n"

-- 
Revolutions do not require corporate support.


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On Mon, Nov 11, 2002 at 06:00:16PM +0000, Matthew Wilcox wrote:
> On Mon, Nov 11, 2002 at 12:36:25PM -0500, John David Anglin wrote:
> > > Looks like we need some __asm format fixes?
> > 
> > These are the changes that I had for glibc-2.2.5-14 to build with gcc-3.3.
> > The string literal change makes the asms ugly but I think we have to live
> > with it.  I don't know the ins and outs of why the change was necessary
> > but I know the cpp people will not change back.
> 
> > +	stw	%rp,-20(%sp)\n\
> > +	stwm	%r4,64(%sp)\n\
> > +	stw	%r19,-32(%sp)\n\
> 
> By and large we've preferred the following style which is less ugly, IMO:
> 
> "	stw	%rp,-20(%sp)\n"
> "	stwm	%r4,64(%sp)\n"
> "	stw	%r19,-32(%sp)\n"
> 

All of Uli's fixes have been the ugly way, though I'll change
pt-initfini the nice and pretty way and hope they take the patch :)

c.


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> > 
> > > +	stw	%rp,-20(%sp)\n\
> > > +	stwm	%r4,64(%sp)\n\
> > > +	stw	%r19,-32(%sp)\n\
> > 
> > By and large we've preferred the following style which is less ugly, IMO:
> > 
> > "	stw	%rp,-20(%sp)\n"
> > "	stwm	%r4,64(%sp)\n"
> > "	stw	%r19,-32(%sp)\n"
> > 
> 
> All of Uli's fixes have been the ugly way, though I'll change
> pt-initfini the nice and pretty way and hope they take the patch :)
> 

Either way is pretty if you space it nicely...
I think the following patch is correct, it's currently building...

c.


diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c
--- glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c	2002-08-26 18:39:29.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c	2002-11-11 13:36:31.000000000 -0500
@@ -41,70 +41,70 @@
    and epilogues.  Therefore we write these in assembly to make sure
    they do the right thing.  */
 
-__asm__ ("
-
-#include \"defs.h\"
-
-/*@HEADER_ENDS*/
-
-/*@_init_PROLOG_BEGINS*/
-	.section .init
-	.align 4
-	.globl _init
-	.type _init,@function
-_init:
-	stw	%rp,-20(%sp)
-	stwm	%r4,64(%sp)
-	stw	%r19,-32(%sp)
-	bl	__pthread_initialize_minimal,%rp
-	copy	%r19,%r4	/* delay slot */
-	copy	%r4,%r19
-/*@_init_PROLOG_ENDS*/
-
-/*@_init_EPILOG_BEGINS*/
-/* Here is the tail end of _init.  */
-	.section .init
-	ldw	-84(%sp),%rp
-	copy	%r4,%r19
-	bv	%r0(%rp)
-_end_init:
-	ldwm	-64(%sp),%r4
-
-/* Our very own unwind info, because the assembler can't handle
-   functions split into two or more pieces.  */
-	.section .PARISC.unwind,\"a\",@progbits
-	.extern _init
-	.word	_init, _end_init
-	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
-
-/*@_init_EPILOG_ENDS*/
-
-/*@_fini_PROLOG_BEGINS*/
-	.section .fini
-	.align 4
-	.globl _fini
-	.type _fini,@function
-_fini:
-	stw	%rp,-20(%sp)
-	stwm	%r4,64(%sp)
-	stw	%r19,-32(%sp)
-	copy	%r19,%r4
-/*@_fini_PROLOG_ENDS*/
-
-/*@_fini_EPILOG_BEGINS*/
-	.section .fini
-	ldw	-84(%sp),%rp
-	copy	%r4,%r19
-	bv	%r0(%rp)
-_end_fini:
-	ldwm	-64(%sp),%r4
-
-	.section .PARISC.unwind,\"a\",@progbits
-	.extern _fini
-	.word	_fini, _end_fini
-	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
-
-/*@_fini_EPILOG_ENDS*/
-
-/*@TRAILER_BEGINS*/
+__asm__ ("								\n\
+									\n\
+#include \"defs.h\"							\n\
+									\n\
+/*@HEADER_ENDS*/							\n\
+									\n\
+/*@_init_PROLOG_BEGINS*/						\n\
+	.section .init							\n\
+	.align 4							\n\
+	.globl _init							\n\
+	.type _init,@function						\n\
+_init:									\n\
+	stw	%rp,-20(%sp)						\n\
+	stwm	%r4,64(%sp)						\n\
+	stw	%r19,-32(%sp)						\n\
+	bl	__pthread_initialize_minimal,%rp			\n\
+	copy	%r19,%r4	/* delay slot */			\n\
+	copy	%r4,%r19						\n\
+/*@_init_PROLOG_ENDS*/							\n\
+									\n\
+/*@_init_EPILOG_BEGINS*/						\n\
+/* Here is the tail end of _init.  */					\n\
+	.section .init							\n\
+	ldw	-84(%sp),%rp						\n\
+	copy	%r4,%r19						\n\
+	bv	%r0(%rp)						\n\
+_end_init:								\n\
+	ldwm	-64(%sp),%r4						\n\
+									\n\
+/* Our very own unwind info, because the assembler can't handle		\n\
+   functions split into two or more pieces.  */				\n\
+	.section .PARISC.unwind,\"a\",@progbits				\n\
+	.extern _init							\n\
+	.word	_init, _end_init					\n\
+	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08		\n\
+									\n\
+/*@_init_EPILOG_ENDS*/							\n\
+									\n\
+/*@_fini_PROLOG_BEGINS*/						\n\
+	.section .fini							\n\
+	.align 4							\n\
+	.globl _fini							\n\
+	.type _fini,@function						\n\
+_fini:									\n\
+	stw	%rp,-20(%sp)						\n\
+	stwm	%r4,64(%sp)						\n\
+	stw	%r19,-32(%sp)						\n\
+	copy	%r19,%r4						\n\
+/*@_fini_PROLOG_ENDS*/							\n\
+									\n\
+/*@_fini_EPILOG_BEGINS*/						\n\
+	.section .fini							\n\
+	ldw	-84(%sp),%rp						\n\
+	copy	%r4,%r19						\n\
+	bv	%r0(%rp)						\n\
+_end_fini:								\n\
+	ldwm	-64(%sp),%r4						\n\
+									\n\
+	.section .PARISC.unwind,\"a\",@progbits				\n\
+	.extern _fini							\n\
+	.word	_fini, _end_fini					\n\
+	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08		\n\
+									\n\
+/*@_fini_EPILOG_ENDS*/							\n\
+									\n\
+/*@TRAILER_BEGINS*/							\n\
 ");


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> > Looks like we need some __asm format fixes?
> 
> These are the changes that I had for glibc-2.2.5-14 to build with gcc-3.3.
> The string literal change makes the asms ugly but I think we have to live
> with it.  I don't know the ins and outs of why the change was necessary
> but I know the cpp people will not change back.
> 

With gcc-3.3 experimental (cvs pull as of yesterday):

make[2]: *** [/math/test-fenv.out] Error 136
make[2]: *** [/math/test-float.out] Error 1
make[2]: *** [/math/test-double.out] Error 1
make[2]: *** [/math/test-ifloat.out] Error 1
make[1]: *** [math/tests] Error 2

	= Same as before, I'm going to regen these right now.

make[2]: *** [/stdlib/bug-strtod.out] Error 1
make[1]: *** [stdlib/tests] Error 2
make[2]: *** [/libio/tst-mmap-eofsync.out] Error 1
make[2]: *** [/libio/tst-mmap-fflushsync.out] Error 1
make[1]: *** [libio/tests] Error 2
make[2]: *** [/dlfcn/default.out] Error 1
make[2]: *** [/dlfcn/tststatic.out] Error 139
make[1]: *** [dlfcn/tests] Error 2
make[2]: [/posix/annexc.out] Error 1 (ignored)
make[2]: *** [/elf/tst-array1.out] Error 1
make[2]: *** [/elf/tst-array2.out] Error 1
make[2]: *** [/elf/tst-array3.out] Error 1

	= These three are new!
	= They seem to be a common failure on x86

make[2]: *** [/elf/vismain.out] Error 1
make[2]: *** [/elf/neededtest.out] Error 14
make[2]: *** [/elf/neededtest2.out] Error 14
make[2]: *** [/elf/neededtest3.out] Error 17
make[2]: *** [/elf/neededtest4.out] Error 2
make[2]: *** [/elf/circleload1.out] Error 9
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

c.



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Subject: Re: [parisc-linux] glibc 2.3.1 - It's alive! - patches
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> make[2]: *** [/elf/vismain.out] Error 1
> make[2]: *** [/elf/neededtest.out] Error 14
> make[2]: *** [/elf/neededtest2.out] Error 14
> make[2]: *** [/elf/neededtest3.out] Error 17
> make[2]: *** [/elf/neededtest4.out] Error 2
> make[2]: *** [/elf/circleload1.out] Error 9
> make[1]: *** [elf/tests] Error 2
> make: *** [check] Error 2

I am not surprised about these.  There definitely problems with
the visibility of symbols based on the binutils testsuite.  These
didn't show up before because the visibility tests didn't run
on the pa.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> 
> With gcc-3.3 experimental (cvs pull as of yesterday):
> 
> make[2]: *** [/math/test-fenv.out] Error 136
> make[2]: *** [/math/test-float.out] Error 1
> make[2]: *** [/math/test-double.out] Error 1
> make[2]: *** [/math/test-ifloat.out] Error 1
> make[1]: *** [math/tests] Error 2
> 
> 	= Same as before, I'm going to regen these right now.
> 

Hrm....

test-double.out says:

GCONV_PATH=/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/iconvdata LC_ALL=C   /mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/elf/ld.so.1 --library-path /mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3:/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/math:/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/elf:/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/dlfcn:/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/nss:/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/nis:/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/rt:/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/resolv:/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/crypt:/mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/linuxthreads /mnt/flaire/src/glibc-upstream-cvs/libc-build-3.3/math/test-double

testing double (without inline functions)
Failure: Real part of: cacos (inf + NaN i) == NaN + inf i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: cacos (-inf + NaN i) == NaN + inf i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: cacos (NaN + inf i) == NaN - inf i: Exception "Invalid operation" set
Failure: Real part of: cacos (NaN - inf i) == NaN + inf i: Exception "Invalid operation" set
Failure: Real part of: cacos (NaN + NaN i) == NaN + NaN i: Exception "Invalid operation" set
Failure: Real part of: ccosh (0.0 + NaN i) == NaN + 0.0 i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: ccosh (-0 + NaN i) == NaN + 0.0 i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: ccosh (inf + NaN i) == inf + NaN i: Exception "Invalid operation" set
Failure: Real part of: ccosh (-inf + NaN i) == inf + NaN i: Exception "Invalid operation" set
Failure: Real part of: cpow (NaN + NaN i, NaN + NaN i) == NaN + NaN i: Exception "Invalid operation" set
Failure: Real part of: csinh (0.0 + NaN i) == 0.0 + NaN i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (-0 + NaN i) == 0.0 + NaN i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (inf + NaN i) == inf + NaN i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (-inf + NaN i) == inf + NaN i plus sign of zero/inf not specified: Exception "Invalid operation" set

Test suite completed:
  2518 test cases plus 2306 tests for exception flags executed.
  14 errors occurred.


They look to be exception related?

c.


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On Mon, Nov 11, 2002 at 03:57:37PM -0500, John David Anglin wrote:
> > make[2]: *** [/elf/vismain.out] Error 1
> > make[2]: *** [/elf/neededtest.out] Error 14
> > make[2]: *** [/elf/neededtest2.out] Error 14
> > make[2]: *** [/elf/neededtest3.out] Error 17
> > make[2]: *** [/elf/neededtest4.out] Error 2
> > make[2]: *** [/elf/circleload1.out] Error 9
> > make[1]: *** [elf/tests] Error 2
> > make: *** [check] Error 2
> 
> I am not surprised about these.  There definitely problems with
> the visibility of symbols based on the binutils testsuite.  These
> didn't show up before because the visibility tests didn't run
> on the pa.
> 

The fix is non-obvious to me. I have no idea where to begin here.
Any hints? :)

c.



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> > I am not surprised about these.  There definitely problems with
> > the visibility of symbols based on the binutils testsuite.  These
> > didn't show up before because the visibility tests didn't run
> > on the pa.
> > 
> 
> The fix is non-obvious to me. I have no idea where to begin here.
> Any hints? :)

It isn't obvious to me either other than the problem is probably in
elf32-hppa.c.  I would look at the testsuite results for ld, pick
a simple test that fails and try to figure out what is going wrong.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Failure: Real part of: csinh (-inf + NaN i) == inf + NaN i plus sign of zero/inf not specified: Exception "Invalid operation" set
> 
> Test suite completed:
>   2518 test cases plus 2306 tests for exception flags executed.
>   14 errors occurred.
> 
> 
> They look to be exception related?

I doubt this is a gcc problem but it might be.  Certain floating-point
compare instructions can generate invalid operation exceptions.  It's
been awhile but I don't think we use these (see page 8-16 of PA 2.0
arch).  An invalid operation exception will always occur with
signaling nans.

You need to try to identify the insn that is causing the exception.
This can be difficult in some cases because the exceptions are
inexact.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > 
> > Test suite completed:
> >   2518 test cases plus 2306 tests for exception flags executed.
> >   14 errors occurred.
> > 
> > They look to be exception related?
> 
> I doubt this is a gcc problem but it might be.  Certain floating-point
> compare instructions can generate invalid operation exceptions.  It's
> been awhile but I don't think we use these (see page 8-16 of PA 2.0
> arch).  An invalid operation exception will always occur with
> signaling nans.
> 
> You need to try to identify the insn that is causing the exception.
> This can be difficult in some cases because the exceptions are
> inexact.
> 

Again, delayed traps can be "Invalid Operation" exceptions within these
floating point tests. We may be seeing some of those issues. I really
need to find a way to properly flush delayed exceptions.

c.


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> Again, delayed traps can be "Invalid Operation" exceptions within these
> floating point tests. We may be seeing some of those issues. I really
> need to find a way to properly flush delayed exceptions.

Look at fldw,fstw.  Specifying register 0L forces the coprocessor
to complete all previous floating-point insns.

-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > Again, delayed traps can be "Invalid Operation" exceptions within these
> > floating point tests. We may be seeing some of those issues. I really
> > need to find a way to properly flush delayed exceptions.
> 
> Look at fldw,fstw.  Specifying register 0L forces the coprocessor
> to complete all previous floating-point insns.
> 

We currently use the following as a delayed exception trap barrier:

libc/glibc-2.3.1/sysdeps/hppa/fpu/fraiseexcpt.c

...
__asm__ __volatile__ ("fmpy,dbl %1,%%fr0,%0\n\t"
			/* FIXME: is this a proper trap barrier? */
			"fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0"(d));
...

And from the comment it seems that DHD wasn't sure either :)
I don't quite understand what is meant by specifying register 0L?

c.


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> And from the comment it seems that DHD wasn't sure either :)
> I don't quite understand what is meant by specifying register 0L?

You just have to do a floating-point load/store to/from register
0/0L using a doubleword/word instruction.  See the arch manual and
the comments about specify register 0 near the bottom of each
instruction description.  0L is the left part of floating 
register 0.  Doing this as a volatile asm should force completion
of all previous floating-point instructions.

A store from register 0 (the floating point status register) is a
safe barrier but you need to provide a location to store to.

I don't believe "fcpy,dbl %%fr0,%%fr0" provides the barrier
that you want.  The floating-point coprocessor is not required to
execute instructions sequentially although they must appear
sequential to software.  The above insn is a nop and the coprocessor
could throw it away early in the pipeline.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> I don't believe "fcpy,dbl %%fr0,%%fr0" provides the barrier
> that you want.  The floating-point coprocessor is not required to
> execute instructions sequentially although they must appear
> sequential to software.  The above insn is a nop and the coprocessor
> could throw it away early in the pipeline.

That's what I was beggining to think.
I'll spill it onto the stack as Lamont suggested some time ago.

c.



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> __asm__ __volatile__ ("fmpy,dbl %1,%%fr0,%0\n\t"
> 			/* FIXME: is this a proper trap barrier? */
> 			"fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0"(d));

Looking at feraiseexcept, I see that you only want to raise one
exception at a time out of a specified set.  Reading the status register
will raise all outstanding exceptions.  I think what needs to be
done is something like the following:

__asm__ __volatile__ ("fmpy,dbl %1,%%fr0,%0\n\t"
 		      "fcmp,dbl,!= %%fr0,%0\n\t"
 		      "ftest\n\t"
 		      "nop" : "=f" (d) : "0"(d));

Doing a compare and test of the result of the fmpy insn will ensure
that any exceptions related to that operation are raised prior to
the ftest insn being queued in floating-point coprocessor.

There is some information in pa.md on the floating-point units used with
different processors.  For example, the 7100LC has three floating-point
units: ALU, MUL, and DIV.  The situation in the PA8000 is much more
complicated because of its large reorder buffer (56 entries).

When an exception occurs, it sets the T bit and the coprocessor is
armed to trap if the exception enable for the trap is 1.  The trap
is taken at the next floating point insn.  However, because of the
out of order execution of instructions and multiple floating-point
units, care has to be taken in selecting the following insn.  It
has to have a dependency on the trap generating insn to ensure that
it actually follows.  Possibly, the ftest is unnecessary but it
ensures that any traps related to the previous two insns are taken.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > The fix is non-obvious to me. I have no idea where to begin here.
> > Any hints? :)
> 
> It isn't obvious to me either other than the problem is probably in
> elf32-hppa.c.  I would look at the testsuite results for ld, pick
> a simple test that fails and try to figure out what is going wrong.

here's a trivial test case in case anyone wants to track this down :-)

======= undef.s ==========
        .protected protected
        .hidden hidden
        .internal internal
==========================

assemble with 'as -o undef.o undef.s' and run 'readelf -s undef.o'

on pa, you get:
Symbol table '.symtab' contains 4 entries:
   Num:    Value  Size Type    Bind   Vis      Ndx Name
     0: 00000000     0 NOTYPE  LOCAL  DEFAULT  UND
     1: 00000000     0 SECTION LOCAL  DEFAULT    1
     2: 00000000     0 SECTION LOCAL  DEFAULT    2
     3: 00000000     0 SECTION LOCAL  DEFAULT    3

on ia32/ia64, i get this more reasonable output:

Symbol table '.symtab' contains 7 entries:
   Num:    Value          Size Type    Bind   Vis      Ndx Name
     0: 0000000000000000     0 NOTYPE  LOCAL  DEFAULT  UND
     1: 0000000000000000     0 SECTION LOCAL  DEFAULT    1
     2: 0000000000000000     0 SECTION LOCAL  DEFAULT    2
     3: 0000000000000000     0 SECTION LOCAL  DEFAULT    3
     4: 0000000000000000     0 NOTYPE  GLOBAL PROTECTED  UND protected
     5: 0000000000000000     0 NOTYPE  GLOBAL HIDDEN  UND hidden
     6: 0000000000000000     0 NOTYPE  GLOBAL INTERNAL  UND internal

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> here's a trivial test case in case anyone wants to track this down :-)

Please post to binutils.  I'm tied up for a bit trying to track
a ld bug on hppa64.  I've managed to break gcc when using gnu ld :(
Sometimes HP stuff works better.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > __asm__ __volatile__ ("fmpy,dbl %1,%%fr0,%0\n\t"
> > 			/* FIXME: is this a proper trap barrier? */
> > 			"fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0"(d));
> 
> Looking at fraiseexcept, I see that you only want to raise one
> exception at a time out of a specified set.  Reading the status register
> will raise all outstanding exceptions.  I think what needs to be
> done is something like the following:

After a night's sleep, I had a couple more thoughts on this.

1) You probably want to clear the T bit at the beginning of the
   routine.  This will ensure that you get the correct exception
   when the first one is raised.  The only way to do this without
   potentially causing a pending trap to trigger is with a double
   word store to floating-point register 0.  You can't read register
   0 before the write without potentially triggering a trap, so
   you need to know what the current state should be.  See page
   10-5 of the PA2 arch manual.

2) A fcpy insn should raise an exception if it depends on the
   result of a pending trapping insn (the current code doesn't).
   It would be best to not use register 0 or the source register
   for the destination register since in theory the processor
   would then know the operation is a nop.  Then, the insn could
   be reordered or discarded.  The fcpy insn is nice since it
   is non-arithmetic and doesn't cause an invalid operation
   exception when a NaN is copied.  The fcmp insn isn't quite
   as nice since it will generate an invalid operation when one
   of the values is a signaling NaN, or if the low-order bit
   of the condition code is 1 and one of the values is an NaN.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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John David Anglin wrote:

> 2) A fcpy insn should raise an exception if it depends on the
>    result of a pending trapping insn (the current code doesn't).
>    It would be best to not use register 0 or the source register
>    for the destination register since in theory the processor
>    would then know the operation is a nop.  Then, the insn could
>    be reordered or discarded.  The fcpy insn is nice since it
>    is non-arithmetic and doesn't cause an invalid operation
>    exception when a NaN is copied.  The fcmp insn isn't quite
>    as nice since it will generate an invalid operation when one
>    of the values is a signaling NaN, or if the low-order bit
>    of the condition code is 1 and one of the values is an NaN.

This isn't right.  According to "Delayed Trapping" on p. 10-5 of the
PA-RISC 2.0 book, an fcpy need not raise a pending exception, because it
is not mentioned in the "delayed trap must occur" list.

Now, it's possible that it might (usually) work on the processor
implementations you're interested in, but it's not architecturally
guaranteed.

 -- Jim
    HP PA-RISC (and IPF) Processor Architect



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> This isn't right.  According to "Delayed Trapping" on p. 10-5 of the
> PA-RISC 2.0 book, an fcpy need not raise a pending exception, because it
> is not mentioned in the "delayed trap must occur" list.

What about "The current instruction is a load or store of the detination
register of a pending trapping instruction or an operation which depends
on a pending trapping instruction"?

I think the latter part of the sentence would apply to a fcpy of the
destination register of a pending trapping instruction.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Dave:

> What about "The current instruction is a load or store of the
destination
> register of a pending trapping instruction or an operation which
depends
> on a pending trapping instruction"?
> 
> I think the latter part of the sentence would apply to a fcpy of the
> destination register of a pending trapping instruction.

I thought that might be the item you were thinking of.  Sometimes, in
our effort to be as concise as possible, we went too far in the PA-RISC
book.

The correct interpretation of that sentence is:

  The current instruction is a load or store of the destination register
  of a pending trapping instruction,

  or

  the current instruction is a load or store of the destination register
  of an operation which depends on a pending trapping instruction.

In other words, it must be a load or store of a destination register,
either of the pending trapping instruction itself, or of any subsequent
instruction which depends on that pending trapping instruction.

Hope this helps.

 -- Jim



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Hi,


thi sseems to be a problem with nonexistent defines expected
to be in include/asm-parisc/mc146818rtc.h


  gcc -Wp,-MD,drivers/char/.rtc.o.d -D__KERNEL__ -Iinclude -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -nostdinc -iwithprefix include -DMODULE -include include/linux/modversions.h   -DKBUILD_BASENAME=rtc -DEXPORT_SYMTAB  -c -o drivers/char/rtc.o drivers/char/rtc.c
drivers/char/rtc.c: In function `rtc_do_ioctl':
drivers/char/rtc.c:411: warning: implicit declaration of function `CMOS_READ'
drivers/char/rtc.c:412: `RTC_ALWAYS_BCD' undeclared (first use in this function)
drivers/char/rtc.c:412: (Each undeclared identifier is reported only once
drivers/char/rtc.c:412: for each function it appears in.)
drivers/char/rtc.c:418: warning: implicit declaration of function `CMOS_WRITE'
drivers/char/rtc.c: In function `rtc_init':
drivers/char/rtc.c:858: warning: implicit declaration of function `RTC_PORT'
drivers/char/rtc.c: In function `get_rtc_time':
drivers/char/rtc.c:1162: `RTC_ALWAYS_BCD' undeclared (first use in this function)
drivers/char/rtc.c: In function `get_rtc_alm_time':
drivers/char/rtc.c:1201: `RTC_ALWAYS_BCD' undeclared (first use in this function)
make[2]: *** [drivers/char/rtc.o] Error 1
make[1]: *** [drivers/char] Error 2
make: *** [drivers] Error 2




-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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> In other words, it must be a load or store of a destination register,
> either of the pending trapping instruction itself, or of any subsequent
> instruction which depends on that pending trapping instruction.

Ok.

Another issue that was somewhat vague was whether the state could be saved
without triggering pending traps.  Page 10-13 discusses special treatment
of a double word store of register 0 and states that it cancels all
pending traps.  On the otherhand, item 3 in the hit list and the instruction
description don't mention this treatment.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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"Bjoern A. Zeeb" wrote:
> thi sseems to be a problem with nonexistent defines expected
> to be in include/asm-parisc/mc146818rtc.h

use GENRTC instead

grant


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On Tue, Nov 12, 2002 at 06:57:07PM +0000, Bjoern A. Zeeb wrote:
> Hi,
> 
> 
> thi sseems to be a problem with nonexistent defines expected
> to be in include/asm-parisc/mc146818rtc.h

Say 'N' to "Enhanced Real Time Clock Support", then "Y" to "Generic
/dev/rtc emulation" instead.

-- 
Revolutions do not require corporate support.


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On Tue, 12 Nov 2002, Grant Grundler wrote:

> "Bjoern A. Zeeb" wrote:
> > thi sseems to be a problem with nonexistent defines expected
> > to be in include/asm-parisc/mc146818rtc.h
>
> use GENRTC instead

Is this a general prob ?

if so it would be good if we could hide this option - I do not know
Kconfig...

perhaps drop a note to Documentation/parisc/

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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Dave:

> Another issue that was somewhat vague was whether the state could be
saved
> without triggering pending traps.  Page 10-13 discusses special
treatment
> of a double word store of register 0 and states that it cancels all
> pending traps.  On the otherhand, item 3 in the hit list and the
instruction
> description don't mention this treatment.

Yes, you can save state without "triggering pending traps", if what you
mean by "triggering" is that you end up at the assist exception trap
handler.

This is described in step 5 of the numbered list on p. 10-6, which
describes what happens when a delayed trap occurs.

 -- Jim



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> Yes, you can save state without "triggering pending traps", if what you
> mean by "triggering" is that you end up at the assist exception trap
> handler.
> 
> This is described in step 5 of the numbered list on p. 10-6, which
> describes what happens when a delayed trap occurs.

Thanks.  I think it is now clear how to implement the function to
raise a specific set of exceptions, one at a time.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi,

felt really lucky to have reached INIT for less than a second ;-)

hit it. looped for(;;);

had to remove power  cause neither sysreq nor the power button could
reboot the machine...

rcS should be the same as everywhere from the .dep .



Linux version 2.5.47-pa1 (bz@apollo) (gcc version 3.2) #5 Tue Nov 12 19:14:45 UTC 2002
...
Kernel command line: root=/dev/sda3 HOME=/ TERM=linux console=ttyS0 palo_kernel=3/boot/vmlinux-2.5.47-pa1
...
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
NET4: Linux TCP/IP 1.0 for NET4.0
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
Linux IP multicast router 0.06 plus PIM-SM
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 372k freed
INIT: version 2.84 booting
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
rcS(11): Breakpoint
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
rcS(11): Breakpoint


-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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Subject: Re: [parisc-linux] C180 oddness
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In case this helps anyone else...

> > On Wed, 2002-10-02 at 13:47, Tom wrote:
> > the "tab after powerup" to switch console settings, but nothing. According
> > to my C180 manual, having the monitor and keyboard on there should set the
> > monitor as console, while removing them should send console to ttyS0.
>
> On 3 Oct 2002, Chuck Slivkoff wrote:
> If the console path in the PDC is explicitly set to one of the serial
> ports, it will not automagically change back to graphics by connecting a
> keyboard. The opposite is true, though: no/bad PS/2 keyboard, no/bad
> graphics, or invalid PDC value (ie, graphics card moved/removed) & the
> console will be directed to the first serial port.
>
> Do the PS/2 keyboard LED's flash and Num_Lock LED light during POST?

Yes, they did...

> Here's another suggestion: try removing all I/O cards, detaching all
> disks, disconnecting the network, and removing all but 1 pair of SIMMs.

Did this, didn't seem to make any difference.

Tracked down a new, known-good db9-db9 null-modem cable, scarfed the g/f
laptop (WinME), connected former to latter with cable and used
HyperTerminal. (Everything still disconnected/removed as suggested above.)
Console came up, with typical dire warnings about hardware changes.
Checked - fast boot disabled already, console path set to
serial_1.9600.n.1, so is correct. Displaying hardware showed VizEG video,
etc. Power off, plug in drives, power on, back to console. SEArch hung
while looking for drives... Discover the "scsi card" end of the FW cable
was bad - moved the next connector in line onto the card, SEA comes up
fine with FWSCSI.5 and SESCSI.5 (correct devices). Plug everything else
back in, all is redetected fine, and system is now merrily trying to
compile 2.4.19-pa24...

So, apparently the cable end being loose/bad was seriously screwing with
it's poor little RISC-brain.

> When you get the console back, you might want to enable "chassis codes"
> (to trace the POST codes) and disable "fast boot" (to get a better test
> of RAM). I believe The service manual has a table which should be able
> to give some indication of when the firmware chooses a console device.
>
> http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManual&docIndexName=hardware+manuals&locale=en_US&prodTypeId=43563&prodSeriesId=44435&prodSeriesName=hp+Visualize+c180+workstation
>
> BTW, one of the nice things about the Allegro/Forte/Duet (4-digit
> B/C/Jxxxx, less J2240) systems is the LCD display which indicates where
> the console has be directed.

I think if I can find one of these cheap I'll grab it :-)  (The C180 was
$35 plus $50 shipping - too good to pass up! Gotta love eBay...)

BTW, I tried using apt to dist-upgrade from stable, but nothing's changed
in quite a while - at least a month. Are updates being pushed into
testing, or is it better to leave sources.list pointing to stable?



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Bjeorn,

What type of system is this.  I am currently tracking down this problem
on the K460.  I know where the problem is caused, just not why yet.

Thanks,

- Ryan
On Tue, Nov 12, 2002 at 08:42:28PM +0000, Bjoern A. Zeeb wrote:
> Hi,
> 
> felt really lucky to have reached INIT for less than a second ;-)
> 
> hit it. looped for(;;);
> 
> had to remove power  cause neither sysreq nor the power button could
> reboot the machine...
> 
> rcS should be the same as everywhere from the .dep .
> 
> 
> 
> Linux version 2.5.47-pa1 (bz@apollo) (gcc version 3.2) #5 Tue Nov 12 19:14:45 UTC 2002
> ...
> Kernel command line: root=/dev/sda3 HOME=/ TERM=linux console=ttyS0 palo_kernel=3/boot/vmlinux-2.5.47-pa1
> ...
> Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 8192 bind 16384)
> Linux IP multicast router 0.06 plus PIM-SM
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> VFS: Mounted root (ext2 filesystem) readonly.
> Freeing unused kernel memory: 372k freed
> INIT: version 2.84 booting
>       _______________________________
>      < Your System ate a SPARC! Gah! >
>       -------------------------------
>              \   ^__^
>               \  (xx)\_______
>                  (__)\       )\/\
>                   U  ||----w |
>                      ||     ||
> rcS(11): Breakpoint
>       _______________________________
>      < Your System ate a SPARC! Gah! >
>       -------------------------------
>              \   ^__^
>               \  (xx)\_______
>                  (__)\       )\/\
>                   U  ||----w |
>                      ||     ||
> rcS(11): Breakpoint
> 
> 
> -- 
> Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
> 56 69 73 69 74				http://www.zabbadoz.net/
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 


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Hello,

Sorry for asking these rather simple questions, but I've spent an evening reading all the documentation that I could find on the parisc sites, and am still a little be unsure.

Yesterday I realised that the cute little box sitting by the bin for 3 weeks was actually a computer - a hp 712-80 to be precise; and I am now desperate (after failing to hear the psu fan above the fridge) to run linux on it, eventually headless (if I dare to reset the default console thingy...) as a network server or as a lightweight webbrowser (i.e. dillo).

It came with no floppy, no harddrive, and no memory - I've bought a el-cheapo 2nd hand generic 2Gb SCSI drive; and now need to squeeze linux onto it :)

As soon as I find myself some simms, I'll be able to get past the pretty hardware-failure screen (look! it even draws where the failing/missing part is on the motherboard!) and have the following installation method planned out.

1) Setup dhcpd on my slackware box to serve the 'lifimage' for the latest net-boot iso
2) Lan-Boot the 712 with a crossover-cable into the main computer, via dhpcd
(don't want to confuse true lan dhpcd requests...)
3) This lifimage will load a kernel and a initrd with the standard debian install tools.
4) I could now 'ifconfig eth0 down', plug the hp into the actual lan, bring the net connection back up (dhcp or static lan config...)
5) Do a install from my closest debian mirror.

I'm sure there must be a fatal flaw in there somewhere... after reading through all those fearful references to NFS-roots et al., it seems so simple now that I've written it down :)

Also, I read somewhere that you can flash the latest firmware to the machine by serving it the firmware as a net-boot image - is this correct? Would it be safer by some other method? - for instance (no idea of actual possibility), copy the firmware to /boot & get AILO (sic?) to boot it...

Thankyou for your patience, ;)
When I get this all set up I promise to write a 'basic 712 install' walkthrough... :)

Jarvist


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On Tue, 12 Nov 2002, Ryan Bradetich wrote:

> Bjeorn,

nice try; second shot please ;-))


> What type of system is this.  I am currently tracking down this problem
> on the K460.  I know where the problem is caused, just not why yet.

model 9000/715


this it were kernel starts joking ...

--- /etc/init.d/initrd-tools.sh ---
[ -f /proc/mounts ] || {
echo "still ok"
        mount -n /proc || exit
        trap 'umount -n /proc' EXIT
}
echo "never reached"
--- ... ---

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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Subject: [parisc-linux] What did I find
Date: Tue, 12 Nov 2002 19:13:44 EST
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Perhaps you can help me identify this box that I found at a surplus auction.
It says on it:
Visual Technology Model: TX100M
When powered up it says it is an X terminal, but it has no X Server 
installed. It has to boot from Tftp, or the sort. 
My main problem is, I can't find any reference to this thing. I have no idea 
what software it runs.
Can anyone help me?
Thanks

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<HTML><FONT FACE=arial,helvetica><FONT  SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Perhaps you can help me identify this box that I found at a surplus auction.<BR>
It says on it:<BR>
Visual Technology Model: TX100M<BR>
When powered up it says it is an X terminal, but it has no X Server installed. It has to boot from Tftp, or the sort. <BR>
My main problem is, I can't find any reference to this thing. I have no idea what software it runs.<BR>
Can anyone help me?<BR>
Thanks</FONT></HTML>

--part1_3d.277be522.2b02f338_boundary--


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On Tue, 2002-11-12 at 15:24, Bjoern A. Zeeb wrote:
> On Tue, 12 Nov 2002, Ryan Bradetich wrote:
> 
> > Bjeorn,
> 
> nice try; second shot please ;-))

Oops... very sorry :(

> 
> > What type of system is this.  I am currently tracking down this problem
> > on the K460.  I know where the problem is caused, just not why yet.
> 
> model 9000/715

Cool.
> 
> this it were kernel starts joking ...
> 
> --- /etc/init.d/initrd-tools.sh ---
> [ -f /proc/mounts ] || {
> echo "still ok"
>         mount -n /proc || exit
>         trap 'umount -n /proc' EXIT
> }
> echo "never reached"
> --- ... ---

Interesting ... will dig further and see if I can get this fixed.

Thanks for the feedback.

- Ryan


> -- 
> Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
> 56 69 73 69 74				http://www.zabbadoz.net/
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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On Sat, Nov 09, 2002 at 10:33:56AM -0500, J.E.J. Bottomley wrote:
> 
> > The SCSI people are being drug kicking and screaming into it,
> > _finally_ now (hell, SCSI is still not using the updated PCI
> > interface, those people _never_ update their drivers if they can avoid
> > it.)
> 
> That't not entirely fair.  Most of the unbroken drivers in the tree (those 
> with active 2.5 maintainers) are using the up to date pci/dma interface.  The 
> mid layer is `sort of' using the device api.

I was referring to the pci_module_init() model of PCI drivers, which, as
of 2.5.47, is only implemented in the ips, nsp32 and aic7xxx drivers.
Every other PCI SCSI controller driver will crash and burn a nasty death
if placed in a machine with a PCI hotplug controller, and someone tries
to remove it.  Hopefully someday this will be fixed... :)

> Where I'd like to see the device model go for SCSI is:
> 
> - we have a device node for every struct scsi_device (even unattached ones)
> 
> - unattached devices are really minimal entities with as few resources 
> allocated as we can get away with, so we can have lazy attachment more easily.
> 
> - on attachment, the device node gets customised by the attachment type (and 
> remember, we can have more than one attachment).
> 
> - whatever the permanent `name' field for the device is going to be needs to 
> be writeable from user level, that way it can eventually be determined by the 
> user level and simply written there as a string (rather than having all the 
> wwn fallback cruft in the mid-layer).
> 
> - Ultimately, I'd like us to dump the host/channel/target numbering scheme in 
> favour of the unique device node name (we may still number them in the 
> mid-layer for convenience) so that we finesse the FC mapping problems---FC 
> devices can embed the necessary identification in the target strings.
> 
> - Oh, and of course, we move to a hotplug/coldplug model where the root device 
> is attached in initramfs and everything else is discovered in user space from 
> the boot process.

All of that sounds very reasonable, and would be nice to see
implemented.

> > Patches for this stuff are going to be happening for quite some time
> > now, don't despair.
> 
> > And they are greatly appreciated, and welcomed from everyone :) 
> 
> As far as extending the generic device model goes, I'll do it for the MCA bus. 
>  I have looked at doing it previously, but giving the MCA bus a struct pci_dev 
> is a real pain because of the underlying assumptions when one of these exists 
> in an x86 machine.

What is the real reason for needing this, pci_alloc_consistent()?  We
have talked about renaming that to dev_alloc_consistent() in the past,
which I think will work for you, right?

thanks,

greg k-h


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On Tue, Nov 12, 2002 at 10:11:41PM +0000, no one wrote:

> Yesterday I realised that the cute little box sitting by the bin for
> 3 weeks was actually a computer - a hp 712-80 to be precise; and I am

Yes, that happened here as well. The HP-UX on the box was toast.

> It came with no floppy, no harddrive, and no memory - I've bought a
> el-cheapo 2nd hand generic 2Gb SCSI drive; and now need to squeeze
> linux onto it :)

You still need memory :)

> As soon as I find myself some simms, I'll be able to get past the
> pretty hardware-failure screen (look! it even draws where the
> failing/missing part is on the motherboard!) and have the following
> installation method planned out.

I like that.

> 1) Setup dhcpd on my slackware box to serve the 'lifimage' for the latest net-boot iso
> 2) Lan-Boot the 712 with a crossover-cable into the main computer, via dhpcd
> (don't want to confuse true lan dhpcd requests...)
> 3) This lifimage will load a kernel and a initrd with the standard debian install tools.
> 4) I could now 'ifconfig eth0 down', plug the hp into the actual lan, bring the net connection back up (dhcp or static lan config...)
> 5) Do a install from my closest debian mirror.

Yup.

> I'm sure there must be a fatal flaw in there somewhere... after
> reading through all those fearful references to NFS-roots et al., it
> seems so simple now that I've written it down :)
> 
> Also, I read somewhere that you can flash the latest firmware to the
> machine by serving it the firmware as a net-boot image - is this
> correct?

Yes. Simply make the HP boot the firmware upgrade via tftp.

> Would it be safer by some other method? - for instance (no
> idea of actual possibility), copy the firmware to /boot & get AILO
> (sic?) to boot it...

On HP it's PALO.
-- 
Ralf Hildebrandt (Im Auftrag des Referat V a)   Ralf.Hildebrandt@charite.de
Charite Campus Mitte                            Tel.  +49 (0)30-450 570-155
Referat V a - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
The length of the signature is inversely proportional 
to the user's ability to use google.



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--- Ralf Hildebrandt <Ralf.Hildebrandt@charite.de> wrote:
> On Tue, Nov 12, 2002 at 10:11:41PM +0000, no one wrote:
> 
> > Yesterday I realised that the cute little box sitting by the bin
> for
> > 3 weeks was actually a computer - a hp 712-80 to be precise; and I
> am
> 
> Yes, that happened here as well. The HP-UX on the box was toast.
> 
> > It came with no floppy, no harddrive, and no memory - I've bought a
> > el-cheapo 2nd hand generic 2Gb SCSI drive; and now need to squeeze
> > linux onto it :)
> 
> You still need memory :)

On a side note about memory, I don't think anyone here has gotten any
memory to work besides HP memory in these boxes.  I have tons of 8MB
modules laying around for them.  Only 4 memory slots so the bigger the
simms the better.  The 712/80 maxes out at 128MB (4X32MB).  No one has
gotten the floppy to work on Debian either so don't worry about that. 
HP part numbers for memory:  A2575-60001(or 69001) 32MB, A2576-60001(or
69001) 16MB, and there are many variations on the 8MB ones.  One of
them is 98236-66524.  Any keyboard and any PS/2 mouse should work, but
becareful about what monitors you use.  Not all will work.  You are
better off loading the thing with an ASCII terminal and serial cable
first.  Good luck!

derek
HP harware fixer-uper....


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Hello parisc-linux hackers,

I spent the evening tracking down why the serial mux failed to start
init and I kept getting the cow message on 2.5.47...and why it worked
for 2.5.46-pa7. After re-merging all the cvs commits in the last 4 days,
I finally tracked the problem down to this chunk of code from
arch/parisc/kernel/singal.c:

Index: arch/parisc/kernel/signal.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/signal.c,v
retrieving revision 1.6
diff -u -p -r1.6 signal.c
--- arch/parisc/kernel/signal.c	10 Nov 2002 19:39:16 -0000	1.6
+++ arch/parisc/kernel/signal.c	13 Nov 2002 07:38:58 -0000
@@ -308,8 +308,21 @@ setup_rt_frame(int sig, struct k_sigacti
 	}
 #endif
 
+#if CACHE_FLUSHING_IS_NOT_BROKEN
 	flush_icache_range((unsigned long) &frame->tramp[0],
 			   (unsigned long) &frame->tramp[4]);
+#else
+       /* It should *always* be cache line-aligned, but the compiler
+           sometimes screws up. */
+       asm volatile("fdc 0(%%sr3,%0)\n\t"
+                    "fdc %1(%%sr3,%0)\n\t"
+                    "sync\n\t"
+                    "fic 0(%%sr3,%0)\n\t"
+                    "fic %1(%%sr3,%0)\n\t"
+                    "sync\n\t"
+                    : : "r" (frame->tramp), "r" (L1_CACHE_BYTES));
+#endif
+
 	rp = (unsigned long) frame->tramp;
 
 	if (err)


This patch is needed to restore the functionality of the 2.5.46 kernel
so the Serial Mux, pdc console, etc will boot on the K460, etc.  I did
not want to re-commit this patch because it is ugly, and it would be
nice to figure out how to solve this problem properly.  

Any thoughts, suggestions, etc?

Thanks!

- Ryan





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--- Longjos@aol.com wrote:
> Perhaps you can help me identify this box that I found at a surplus
> auction.
> It says on it:
> Visual Technology Model: TX100M
> When powered up it says it is an X terminal, but it has no X Server 
> installed. It has to boot from Tftp, or the sort. 
> My main problem is, I can't find any reference to this thing. I have
> no idea 
> what software it runs.
> Can anyone help me?
> Thanks
> 

I know that HP's version of this box (Envizex, Entria, and 700/RX
X-Terminals) were diskless and bootp'd from an HP9000 UNIX box over the
network. 

derek


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Greg KH <greg@kroah.com> writes:
> What is the real reason for needing this, pci_alloc_consistent()?  We
> have talked about renaming that to dev_alloc_consistent() in the past,
> which I think will work for you, right?

This this would end up [or have the ability to] invoking a bus-specific
routine at some point, right?  [so that a truly PCI-specific definition
could be still be had]

Thanks,

-Miles
-- 
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            will  make every christian in the world foamm at the mouth? 
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> +#if CACHE_FLUSHING_IS_NOT_BROKEN
>  	flush_icache_range((unsigned long) &frame->tramp[0],
>  			   (unsigned long) &frame->tramp[4]);
> +#else
> +       /* It should *always* be cache line-aligned, but the compiler
> +           sometimes screws up. */
> +       asm volatile("fdc 0(%%sr3,%0)\n\t"
> +                    "fdc %1(%%sr3,%0)\n\t"
> +                    "sync\n\t"
> +                    "fic 0(%%sr3,%0)\n\t"
> +                    "fic %1(%%sr3,%0)\n\t"
> +                    "sync\n\t"
> +                    : : "r" (frame->tramp), "r" (L1_CACHE_BYTES));
> +#endif
> +

<sigh>
this is partly my fault, since i thought we have unbroken cache flushing
and asked thibaut to check this in... now i see that the original code
flushes sr3 space, but flush_icache_range() flushes the kernel space...
oops!

perhaps we should just check the old code back in for now?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Wed, Nov 13, 2002 at 04:46:58PM +0900, Miles Bader wrote:
> Greg KH <greg@kroah.com> writes:
> > What is the real reason for needing this, pci_alloc_consistent()?  We
> > have talked about renaming that to dev_alloc_consistent() in the past,
> > which I think will work for you, right?
> 
> This this would end up [or have the ability to] invoking a bus-specific
> routine at some point, right?  [so that a truly PCI-specific definition
> could be still be had]

If that was needed, yes, we should not break that functionality.

Are there any existing archs that need more than just dma_mask moved to
struct device out of pci_dev?  Hm, ppc might need a bit more...

thanks,

greg k-h


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From: Miles Bader <miles@lsi.nec.co.jp>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Untested port of parisc_device to generic device interface
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To: Greg KH <greg@kroah.com>
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Greg KH <greg@kroah.com> writes:
> > This this would end up [or have the ability to] invoking a bus-specific
> > routine at some point, right?  [so that a truly PCI-specific definition
> > could be still be had]
> 
> If that was needed, yes, we should not break that functionality.
> 
> Are there any existing archs that need more than just dma_mask moved to
> struct device out of pci_dev?  Hm, ppc might need a bit more...

I can't speak for `real machines,' but on my wierd embedded board,
pci_alloc_consistent allocates from a special area of memory (not
located at 0) that is the only shared memory between PCI devices and the
CPU.  pci_alloc_consistent happens to fit this situation quite well, but
I don't think a bitmask is enough to express the situation.

-Miles
-- 
Ich bin ein Virus. Mach' mit und kopiere mich in Deine .signature.


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From: Greg KH <greg@kroah.com>
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Subject: Re: [parisc-linux] Untested port of parisc_device to generic device interface
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To: Miles Bader <miles@gnu.org>
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On Wed, Nov 13, 2002 at 05:02:39PM +0900, Miles Bader wrote:
> Greg KH <greg@kroah.com> writes:
> > > This this would end up [or have the ability to] invoking a bus-specific
> > > routine at some point, right?  [so that a truly PCI-specific definition
> > > could be still be had]
> > 
> > If that was needed, yes, we should not break that functionality.
> > 
> > Are there any existing archs that need more than just dma_mask moved to
> > struct device out of pci_dev?  Hm, ppc might need a bit more...
> 
> I can't speak for `real machines,' but on my wierd embedded board,
> pci_alloc_consistent allocates from a special area of memory (not
> located at 0) that is the only shared memory between PCI devices and the
> CPU.  pci_alloc_consistent happens to fit this situation quite well, but
> I don't think a bitmask is enough to express the situation.

What does your pci_alloc_consistent() function need from the pci_dev
structure in order to do what you need it to do?  Anything other than
the dma_mask value?

thanks,

greg k-h


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From: Miles Bader <miles@lsi.nec.co.jp>
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Greg KH <greg@kroah.com> writes:
> > I can't speak for `real machines,' but on my wierd embedded board,
> > pci_alloc_consistent allocates from a special area of memory (not
> > located at 0) that is the only shared memory between PCI devices and the
> > CPU.  pci_alloc_consistent happens to fit this situation quite well, but
> > I don't think a bitmask is enough to express the situation.
> 
> What does your pci_alloc_consistent() function need from the pci_dev
> structure in order to do what you need it to do?  Anything other than
> the dma_mask value?

Currently, it ignores the pci_dev argument entirely (I've never had a
device that needed the mask, so I haven't bothered with it).  It just
allocates a block from the special memory region and returns the result.

-Miles
-- 
$B<+$i$r6u$K$7$F!"?4$r3+$/;~!"F;$O3+$+$l$k(B


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On Wed, Nov 13, 2002 at 05:26:34PM +0900, Miles Bader wrote:
> Greg KH <greg@kroah.com> writes:
> > > I can't speak for `real machines,' but on my wierd embedded board,
> > > pci_alloc_consistent allocates from a special area of memory (not
> > > located at 0) that is the only shared memory between PCI devices and the
> > > CPU.  pci_alloc_consistent happens to fit this situation quite well, but
> > > I don't think a bitmask is enough to express the situation.
> > 
> > What does your pci_alloc_consistent() function need from the pci_dev
> > structure in order to do what you need it to do?  Anything other than
> > the dma_mask value?
> 
> Currently, it ignores the pci_dev argument entirely (I've never had a
> device that needed the mask, so I haven't bothered with it).  It just
> allocates a block from the special memory region and returns the result.

So merely renaming that function to dev_alloc_consistent(), changing the
first paramater to be a struct device, and proving a macro for all of
the pci drivers for the old pci_alloc_consistent() name would work just
fine for you?

greg k-h


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Greg KH <greg@kroah.com> writes:
> > Currently, it ignores the pci_dev argument entirely (I've never had a
> > device that needed the mask, so I haven't bothered with it).  It just
> > allocates a block from the special memory region and returns the result.
> 
> So merely renaming that function to dev_alloc_consistent(), changing the
> first paramater to be a struct device, and proving a macro for all of
> the pci drivers for the old pci_alloc_consistent() name would work just
> fine for you?

Except that this function doesn't make any sense except for PCI devices.

I don't know whether there will ever be any devices that (1) call
`dev_alloc_consistent', (2) aren't PCI devices, and (3) would stand a
chance of ever working on this platform -- probably not.

Never-the-less, it provides (a non-artificial) example of a case where
it's wrong to assume that all busses are the same, and I think that
merits some attention.

-Miles
-- 
97% of everything is grunge


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On Tue, 2002-11-12 19:13:44 -0500, Longjos@aol.com <Longjos@aol.com>
wrote in message <3d.277be522.2b02f338@aol.com>:
> Perhaps you can help me identify this box that I found at a surplus aucti=
on.
> It says on it:
> Visual Technology Model: TX100M
> When powered up it says it is an X terminal, but it has no X Server=20
> installed. It has to boot from Tftp, or the sort.=20

Referring to
http://www2.computerwoche.de/heftarchiv/1992/19920207/a102767.html (it's
in German, sorry...), this box uses a M68k CPU. After switching it on,
what can you sniff off the network? I think you'll only need to give it
an IP address and its X host, possibly also a firmware image.

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet!
   Shell Script APT-Proxy: http://lug-owl.de/~jbglaw/software/ap2/

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On Tue, Nov 12, 2002 at 11:52:23PM -0800, Greg KH wrote:
> On Wed, Nov 13, 2002 at 04:46:58PM +0900, Miles Bader wrote:
> > This this would end up [or have the ability to] invoking a bus-specific
> > routine at some point, right?  [so that a truly PCI-specific definition
> > could be still be had]
> 
> If that was needed, yes, we should not break that functionality.
> 
> Are there any existing archs that need more than just dma_mask moved to
> struct device out of pci_dev?  Hm, ppc might need a bit more...

Add alpha, parisc, sparc and so on. ;-)

pci_dev->sysdata needs to be moved as well, but not only.
It seems that two things are fundamentally missing in generic
device model:
1. clean way to detect the type of container structure from arbitrary
   struct device *;
2. parent/child relationship between devices of different bus types.

Example (not exactly real life, but close enough):
to do DMA mapping properly for, say, some legacy device, I need to know
that it's sitting behind ISA-to-PCI bridge X belonging in PCI domain Y of
the root-level IO controller Z.

Ivan.


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On Tue, Nov 12, 2002 at 11:52:34PM -0800, Randolph Chung wrote:
> this is partly my fault, since i thought we have unbroken cache flushing
> and asked thibaut to check this in... now i see that the original code
> flushes sr3 space, but flush_icache_range() flushes the kernel space...
> oops!
> 
> perhaps we should just check the old code back in for now?

Can we use
  void flush_icache_user_range(struct vm_area_struct *vma,
                        struct page *page, unsigned long addr, int len)
?  I'm not sure where we'd get the struct page from, though.

-- 
Revolutions do not require corporate support.


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Subject: [parisc-linux] Recent CVS changes?
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Today I "cvs co"'ed the PARISC kernel and found lots of changes. Is
that a major version change (2.5.?)

-- 
Ralf Hildebrandt (Im Auftrag des Referat V a)   Ralf.Hildebrandt@charite.de
Charite Campus Mitte                            Tel.  +49 (0)30-450 570-155
Referat V a - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
In 1968 it took the computing-Power of 2 C-64 to fly a rocket to the moon.
Now, 1997 it takes the Power of a Pentium 133 to run Microsoft Windows 95.
                  Something must have gone wrong.



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On Wed, Nov 13, 2002 at 02:19:10PM +0100, Ralf Hildebrandt wrote:
> Today I "cvs co"'ed the PARISC kernel and found lots of changes. Is
> that a major version change (2.5.?)

probably has something to do with the 2.4.20-rc1 i imported last night.
merge in progress, going smoothly.

-- 
Revolutions do not require corporate support.


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Am 13.11.2002 um 13:24:54 +0000 schrieb Matthew Wilcox folgendes:
> On Wed, Nov 13, 2002 at 02:19:10PM +0100, Ralf Hildebrandt wrote:
> > Today I "cvs co"'ed the PARISC kernel and found lots of changes. Is
> > that a major version change (2.5.?)
> 
> probably has something to do with the 2.4.20-rc1 i imported last night.
> merge in progress, going smoothly.

OK, that's probably it, then.
Are the ext3 changes in already? They work quite well.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V a)   Ralf.Hildebrandt@charite.de
Charite Campus Mitte                            Tel.  +49 (0)30-450 570-155
Referat V a - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
Why you can't find your system administrators:
Out at Starbuck's for the X time today getting a grande cafe mocha with an espresso chaser. 



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Hi Willy,

>probably has something to do with the 2.4.20-rc1 i imported last night.
>merge in progress, going smoothly.
>

I already do this exercise and seems to obtain a workable kernel.
I s my patch versus 2.4.19-pa24 would help you (at least to have to avoid
to check already merged (AC) files)?

Up to you

Joel

-------------------------------------------------------------
Tiscali Complete, l'accs Internet moins cher que gratuit ! Plus d'info:
http://complete.tiscali.be




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On Wed, Nov 13, 2002 at 02:36:20PM +0100, jsoe0708@tiscali.be wrote:
> I already do this exercise and seems to obtain a workable kernel.
> I s my patch versus 2.4.19-pa24 would help you (at least to have to avoid
> to check already merged (AC) files)?

no, it's not useful due to the way CVS works

-- 
Revolutions do not require corporate support.


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On Wed, Nov 13, 2002 at 01:37:37PM +0000, Matthew Wilcox wrote:
> On Wed, Nov 13, 2002 at 02:36:20PM +0100, jsoe0708@tiscali.be wrote:
> > I already do this exercise and seems to obtain a workable kernel.
> > I s my patch versus 2.4.19-pa24 would help you (at least to have to avoid
> > to check already merged (AC) files)?
> 
> no, it's not useful due to the way CVS works

... though, thinking about it, it'll be useful if you compare your tree
with the one that gets committed to CVS later today.

-- 
Revolutions do not require corporate support.


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Ok (just let me some more minutes)

>... though, thinking about it, it'll be useful if you compare your tree
>with the one that gets committed to CVS later today.
>
>-- 
Joel

-------------------------------------------------------------
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Subject: [parisc-linux] OT:  C180 has to go...
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Hey all,

Sorry if this is the wrong place for this, please let me know.  My C360
is on it's way and the C180 has to go.  No room for both.  If anyone is
interested in it let me know *off the list* or it's going off to Ebay. 
This machine was originally bought off Ebay and the case was damaged. 
It has been replaced so the product number off the tag in the back says
it's a C200, but it is indeed a C180.  I'm not looking for much in the
way of asking price because shipping can tend to be high on this heavy
a box (about 60 lbs. packaged).  It has been running Debian for awile
now with no issues.  PDC firmware is at the latest.

Memory: 384MB
Drives: (2) internal ST34371WD Seagate 4.3GB with HP firmware
CDROM: None
Graphics Card:  None (but has built in EG card that needs the EVC
                adapter - not included)
Terminators:  Will include both an SE and F/W terminator
No keyboard or mouse (need them for the new one)


Anyway thanks for your time.

derek

__________________________________________________
Do you Yahoo!?
U2 on LAUNCH - Exclusive greatest hits videos
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ok, HEAD is now based on 2.4.20-rc1.  There's three things I wasn't 100%
sure of during the merge:

(1) drivers/pci/setup-bus.c.  It looks like most of, but not all, the
changes in our tree were merged into 2.5.20-rc1.  I've basically taken
the version we had in 2.4.19 but other changes may be needed.  Grant,
can you look at this?

(2) arch/parisc/kernel/syscall.S.  2.4.20-rc1 removed our XFS syscalls..
tausq, can you look at this?

(3) include/asm-parisc/ide.h.  2.4.20-rc1 removed some definitions from
this file that weren't removed from asm-i386, so i put them back.  Alan,
I presume this was your doing?

-- 
Revolutions do not require corporate support.


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On Wed, 2002-11-13 at 15:32, Matthew Wilcox wrote:
> (3) include/asm-parisc/ide.h.  2.4.20-rc1 removed some definitions from
> this file that weren't removed from asm-i386, so i put them back.  Alan,
> I presume this was your doing?

Not me AFAIK. The IDE in -ac is seperate so doesnt get merged



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	Matthew Wilcox <willy@debian.org>,
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>>>>> "Ivan" == Ivan Kokshaysky <ink@jurassic.park.msu.ru> writes:

Ivan> It seems that two things are fundamentally missing in generic
Ivan> device model:
Ivan> 1. clean way to detect the type of container structure from arbitrary
Ivan>    struct device *;

Indeed.

I'm using the following stuff in some EISA drivers :

#ifdef CONFIG_EISA
#define DEVICE_EISA(dev) (((dev)->bus == &eisa_bus_type) ? to_eisa_device((dev)) : NULL)
#else
#define DEVICE_EISA(dev) NULL
#endif

and frankly, it's really awful. On drivers which are both EISA and
PCI (3c59x, aic7xxx), this is a major pain.

        M.
-- 
Places change, faces change. Life is so very strange.


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On Wednesday 13 November 2002 12:52 am, Greg KH wrote:
> On Wed, Nov 13, 2002 at 04:46:58PM +0900, Miles Bader wrote:
> > Greg KH <greg@kroah.com> writes:
> > > What is the real reason for needing this, pci_alloc_consistent()?  We
> > > have talked about renaming that to dev_alloc_consistent() in the past,
> > > which I think will work for you, right?
> > 
> > This this would end up [or have the ability to] invoking a bus-specific
> > routine at some point, right?  [so that a truly PCI-specific definition
> > could be still be had]
> 
> If that was needed, yes, we should not break that functionality.
> 
> Are there any existing archs that need more than just dma_mask moved to
> struct device out of pci_dev?  Hm, ppc might need a bit more...

Absolutely.  Boxes with multiple IOMMUs (at least ia64, sparc64, parisc)
need to look up the correct IOMMU with which to map the allocated buffer.
Typically this is in the pci_dev sysdata.

Bjorn



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On Tue, Nov 12, 2002 at 10:44:07AM -0500, John David Anglin wrote:
> > > __asm__ __volatile__ ("fmpy,dbl %1,%%fr0,%0\n\t"
> > > 			/* FIXME: is this a proper trap barrier? */
> > > 			"fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0"(d));

So really the fix is to spill into a third register or a memory location
in order to:

1) Prevent reordering and subsequent discard of the insn
2) Trigger the trap since the result of the register is needed

> 1) You probably want to clear the T bit at the beginning of the
>    routine.  This will ensure that you get the correct exception
>    when the first one is raised.  The only way to do this without
>    potentially causing a pending trap to trigger is with a double
>    word store to floating-point register 0.  You can't read register
>    0 before the write without potentially triggering a trap, so
>    you need to know what the current state should be.  See page
>    10-5 of the PA2 arch manual.

Okie, lets see if I have this right:

1) Routine starts
2) Clear T by reading fr0 and writing back with T=0
	= All other pending delayed exceptions are nulled
3) Setup an exception to occur based on requirements
	= insn writes to dX
4) Trap barrier
	= insn where dX is copied to dY (dX!=dY)

> 2) A fcpy insn should raise an exception if it depends on the
>    result of a pending trapping insn (the current code doesn't).
>    It would be best to not use register 0 or the source register
>    for the destination register since in theory the processor
>    would then know the operation is a nop.  Then, the insn could
>    be reordered or discarded.  The fcpy insn is nice since it
>    is non-arithmetic and doesn't cause an invalid operation
>    exception when a NaN is copied.  The fcmp insn isn't quite
>    as nice since it will generate an invalid operation when one
>    of the values is a signaling NaN, or if the low-order bit
>    of the condition code is 1 and one of the values is an NaN.

I liked the fcpy specifically for that reason. It doesn't itself cause a
recursive triggering of more delayed exceptions, eventually filling the
exception queue and delivering an exception anyway ;)

c.



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Having brought the C180 back to life... Kernel 2.4.18-pa59 looks, boots
and works normally. I downloaded and compiled 2.4.19-pa24, which froze at
"branching to kernel entry point...". Rechecked config, recompiled, same
result. I left it hung for a few minutes, as I've seen delays here before,
then while searching the web and the list archives for solutions it
started again. Delay was over 10 minutes, pushing 20 perhaps. After it
came up, I ssh'd in and restarted it. Same delay, same place...

Does anyone have an idea as to why such a long delay would occur there?
PDC has console to serial_1, which had a terminal on it. There was no
errors or complaints anywhere in the boot process, and none visible during
the kernel compile. I can provide System.map, config file, etc. if
desired...



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Le mercredi, 13 nov 2002, =E0 13:28 Europe/Paris, Matthew Wilcox a =E9crit=
 :

> On Tue, Nov 12, 2002 at 11:52:34PM -0800, Randolph Chung wrote:
>> this is partly my fault, since i thought we have unbroken cache=20
>> flushing
>> and asked thibaut to check this in... now i see that the original =
code
>> flushes sr3 space, but flush_icache_range() flushes the kernel=20
>> space...
>> oops!
>>
>> perhaps we should just check the old code back in for now?
>
> Can we use
>   void flush_icache_user_range(struct vm_area_struct *vma,
>                         struct page *page, unsigned long addr, int =
len)
> ?  I'm not sure where we'd get the struct page from, though.

I reverted to the previous version until we find that out.
HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=




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> Absolutely.  Boxes with multiple IOMMUs (at least ia64, sparc64,
> parisc) need to look up the correct IOMMU with which to map the
> allocated buffer. Typically this is in the pci_dev sysdata. 

Actually, I think all of the DMA mapping api needs to become bus independent 
and take a struct device * instead of a pci_dev.  How this lookup/mapping is 
done could be abstracted per architecture inside the DMA api internals.

We should also allow devices to do all the setup through bus generic 
functions, but leave open the possibility that the driver may (once it knows 
the bus type) obtain the pci_dev (or whatever) from the struct device if it 
really, really has to muck with bus specific registers.

As far as the SCSI mid layer goes, all we really need from struct device is 
the dma_mask for setting up the I/O bounce buffers.

The simplest way to do all of this is probably to add a pointer to the 
dma_mask in struct device and make it point to the same thing in pci_dev.  If 
we find we need more than this per device, it could become a pointer to a 
generic dma information structure later on.

Drivers need to advertise DMA conformance (at the moment, requires consistent 
allocation, or fully writeback/invalidate compliant)

We should also adopt Adam's pointer approach to the sync/invalidate points so 
we can treat a dma_alloc_consistent failure as a real failure and not clutter 
the code with writeback/invalidate fallbacks.

The above changes would allow me to yank all of the pci_dev specific code out 
of the scsi mid layer, and also introduce a mca_dev type, convert the 53c700 
driver to using the generic dma API and *finally* get us to the point where I 
don't have to use bounce buffers for highmem access on the MCA bus.

Since the 53c700 is also used by parisc (including some machines with 
IOMMUs---which, unfortunately, I don't have access to), it probably makes an 
ideal conversion test case.

This can probably all be wrappered so the current SCSI pci drivers don't 
notice anything wrong.

James




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On Wed, Nov 13, 2002 at 10:26:43AM -0900, Tom wrote:
> Does anyone have an idea as to why such a long delay would occur there?
> PDC has console to serial_1, which had a terminal on it. There was no
> errors or complaints anywhere in the boot process, and none visible during
> the kernel compile. I can provide System.map, config file, etc. if
> desired...

Yes, it's during device walk.  The support for E class that rbrad wrote
means that every machine with a CCIO suffers.  I suspect this'll get
fixed fairly soon.

-- 
Revolutions do not require corporate support.


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> On Wed, Nov 13, 2002 at 10:26:43AM -0900, Tom wrote:
> > Does anyone have an idea as to why such a long delay would occur there?
> > PDC has console to serial_1, which had a terminal on it. There was no
> > errors or complaints anywhere in the boot process, and none visible during
> > the kernel compile. I can provide System.map, config file, etc. if
> > desired...

> On Wed, 13 Nov 2002, Matthew Wilcox wrote:
> Yes, it's during device walk.  The support for E class that rbrad wrote
> means that every machine with a CCIO suffers.  I suspect this'll get
> fixed fairly soon.

Then I'll assume it's a "feature", at least until sometime in the 2.4.20
range :-)

Thanks!



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Greg KH wrote:
> Are there any existing archs that need more than just dma_mask moved to
> struct device out of pci_dev?  Hm, ppc might need a bit more...

"out of pci_dev" and into struct device?
I think that's all parisc port would need now.

At some point I'd like to propose "dma_hint" field.
But I don't have a specific proposal yet.
Something to help drivers communicate DMA characteristics to
the IOMMU support code. ie bandwidth needed, cacheline line aware,
MWLI support, etc.

grant


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Miles Bader wrote:
> I can't speak for `real machines,' but on my wierd embedded board,
> pci_alloc_consistent allocates from a special area of memory (not
> located at 0) that is the only shared memory between PCI devices and the
> CPU.  pci_alloc_consistent happens to fit this situation quite well, but
> I don't think a bitmask is enough to express the situation.

HP PARISC V-Class do that as well. The "consistent" memory lives
on the PCI Bus Controller - not in host mem.
Note that parisc-linux does not (yet) support V-class.

grant


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> On Tue, Nov 12, 2002 at 10:44:07AM -0500, John David Anglin wrote:
> > > > __asm__ __volatile__ ("fmpy,dbl %1,%%fr0,%0\n\t"
> > > > 			/* FIXME: is this a proper trap barrier? */
> > > > 			"fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0"(d));
> 
> So really the fix is to spill into a third register or a memory location
> in order to:
> 
> 1) Prevent reordering and subsequent discard of the insn
> 2) Trigger the trap since the result of the register is needed

That's the general idea.  However, fcpy won't always trigger
the trap as the T bit may not be set when it executes even if it
depends on the exception generating instruction.  You have to use
a load or store to %0, or a load or store to %1, or a fcmp,ftest,nop
sequence that depends on the exception generating instruction.
You don't actually have to spill the result.  For example, a
"fldd 0(%%sp),%0" or "fldd 0(%%sp),%1" should raise the exception.
The stack pointer should always be sufficiently aligned.

> 2) Clear T by reading fr0 and writing back with T=0
> 	= All other pending delayed exceptions are nulled

I would suggest saving the whole state.  Reading fr0 with
a double word store will automatically clear T.  I believe
that there is a function do to that.  You might then clear
the exception registers and set the status register to a
state with the exception enables appropriately set.  If you
are paranoid, you could set the enable for just the exception
that you want to raise at each step.

> 3) Setup an exception to occur based on requirements
> 	= insn writes to dX
> 4) Trap barrier
> 	= insn where dX is copied to dY (dX!=dY)

The state can be restored at the end.  I am not quite sure
what is required at this point.  Should the function remove
any or all pending exceptions?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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"J.E.J. Bottomley" wrote:
> Actually, I think dma_mask and consistent memory are orthogonal problems.  

No. consistent memory needs to be reachable by the device as well.
dma_mask constrains which memory pci_alloc_consistent() can use.

> dma_masks are used by the I/O subsystem to determine whether direct DMA to a 
> memory region containing an I/O buffer is possible or whether it has to be 
> bounced.  Consistent memory is usually allocated for driver specific 
> transfers.  The I/O subsystem doesn't usually require the actual I/O buffers 
> to be in consistent memory.

right.

grant


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Miles Bader wrote:
> I can't speak for `real machines,' but on my wierd embedded board,
> pci_alloc_consistent allocates from a special area of memory (not
> located at 0) that is the only shared memory between PCI devices and the
> CPU.  pci_alloc_consistent happens to fit this situation quite well, but
> I don't think a bitmask is enough to express the situation.

grundler@dsl2.external.hp.com said:
> HP PARISC V-Class do that as well. The "consistent" memory lives on
> the PCI Bus Controller - not in host mem. Note that parisc-linux does
> not (yet) support V-class. 

Actually, I think dma_mask and consistent memory are orthogonal problems.  
dma_masks are used by the I/O subsystem to determine whether direct DMA to a 
memory region containing an I/O buffer is possible or whether it has to be 
bounced.  Consistent memory is usually allocated for driver specific 
transfers.  The I/O subsystem doesn't usually require the actual I/O buffers 
to be in consistent memory.

James




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"J.E.J. Bottomley" wrote:
> We should also allow devices to do all the setup through bus generic 
> functions, but leave open the possibility that the driver may (once it knows 
> the bus type) obtain the pci_dev (or whatever) from the struct device if it 
> really, really has to muck with bus specific registers.

For device discovery and initialization, the generic PCI code has to muck
with PCI specific resources (IO Port, MMIO, and IRQ related stuff primarily).

> As far as the SCSI mid layer goes, all we really need from struct device is 
> the dma_mask for setting up the I/O bounce buffers.
> 
> The simplest way to do all of this is probably to add a pointer to the 
> dma_mask in struct device and make it point to the same thing in pci_dev.
> If we find we need more than this per device, it could become a pointer
> to a generic dma information structure later on.

uhmm...If we are going to touch dma_mask in pci_dev, then just move it
to struct device and be done with it. Then fixup pci_set_dma_mask()
to do the right thing.

...
> Since the 53c700 is also used by parisc (including some machines with 
> IOMMUs---which, unfortunately, I don't have access to), it probably makes an 
> ideal conversion test case.

Duck! (that's going to get fixed it seems) ;^)

thanks,
grant


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grundler@dsl2.external.hp.com said:
> For device discovery and initialization, the generic PCI code has to
> muck with PCI specific resources (IO Port, MMIO, and IRQ related stuff
> primarily). 

Oh, I agree.  If we conduct a phased approach to this, what happens initially 
is that the pci drivers simply pull pci_dev out of the struct device and use 
it as previously.

However, I think the ultimate destination is to see how much of the bus 
specific stuff we can abstract by throwing an API around it.  I think IRQ, 
port and mmio are feasible.  Specific knowledge of bus posting et al may not 
be.

> uhmm...If we are going to touch dma_mask in pci_dev, then just move it
> to struct device and be done with it. Then fixup pci_set_dma_mask() to
> do the right thing. 

Well...OK.  The advantage of a pointer in struct device is that the code can 
be converted as is, and no-one has to muck with the direct accessors of the 
pci_dev->dma_mask.  However, I'll see how many of them there actually are, its 
probably just the drivers that transfer the information to 
blk_queue_bounce_limit.

> Duck! (that's going to get fixed it seems) ;^) 

I thought the 53c700 was working OK?  Richard Hirst did some extensive testing 
on a parisc with an IO-MMU for me (he caught a lot of early mapping leaks 
which I fixed).

James




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After such long time, I want to ask, if there any news?

Where there experiences (with logic analysator, etc...), if the
SCSI chip is accessed ?

Are there any news in accessing another port then port "0" on the
MUX. My experiments using "only" port "1" was also not successful,
the machine blocks !

Perhaps the PDC ROM setup influences the MUX device.

Answer is welcome.
Christoph




-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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"J.E.J. Bottomley" wrote:
> However, I think the ultimate destination is to see how much of the bus 
> specific stuff we can abstract by throwing an API around it.  I think IRQ, 
> port and mmio are feasible.  Specific knowledge of bus posting et al may not 
> be.

I was thinking how many BARs are present/used is PCI specific.

arch code already handles most of the IRQ fixups anyway and it
doesn't really matter where IRQ info is stored as long as the
device driver knows where to find it.

> > Duck! (that's going to get fixed it seems) ;^) 
> 
> I thought the 53c700 was working OK?

sorry - "going to get fixed" meant we are looking for a C180
or similar machine to send you.

thanks!
grant


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Subject: Re: [parisc-linux] LONG pause on boot
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On Wed, Nov 13, 2002 at 07:30:18PM +0000, Matthew Wilcox wrote:
> On Wed, Nov 13, 2002 at 10:26:43AM -0900, Tom wrote:
> > Does anyone have an idea as to why such a long delay would occur there?
> > PDC has console to serial_1, which had a terminal on it. There was no
> > errors or complaints anywhere in the boot process, and none visible during
> > the kernel compile. I can provide System.map, config file, etc. if
> > desired...
> 
> Yes, it's during device walk.  The support for E class that rbrad wrote
> means that every machine with a CCIO suffers.  I suspect this'll get
> fixed fairly soon.

Willy, I have an idea on how to fix this, but it is ugly ... but I will probably
consider committing it soon unless you have a cleaner idea (hint, hint :))

The problem is with E-Class ... the devices are at the end of the bus range.  We
need to walk the entire bus until we find the range the drivers exist in.  On
systems where the devices are at the end (or no devices in that range) the entire
bus needs to be walked.... this is the delay you are seeing.

I have a proposal to speed up systems where the devices are at the end of the
bus ... we can simply walk the first bus range, then the last bus range, if
nothing found yet ... walk the middle.

I do not have a solution for a bus with no devices present yet ...

Thanks,

- Ryan





> 
> -- 
> Revolutions do not require corporate support.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 


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Subject: Re: [parisc-linux] ? New status of MUX or SCSI driver on E-series (and other...)
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Hello Christoph,


On Wed, Nov 13, 2002 at 10:32:21PM +0100, Christoph Plattner wrote:
> After such long time, I want to ask, if there any news?
> 
> Where there experiences (with logic analysator, etc...), if the
> SCSI chip is accessed ?

On the todo list ... still no forward progress yet :(

> Are there any news in accessing another port then port "0" on the
> MUX. My experiments using "only" port "1" was also not successful,
> the machine blocks !

The mux has been ported to linux-2.5, the major number 11 was assigned,
and linus accepted it into his tree.  Last night I found the problem
that caused the init failure with the mux so the mux boots again
on 2.5.47.  The forward port is more flexible and is better designed 
to handle handle multiple muxes and the access to the ports.  I am
working with robbie to test the multiple mux cards now, and plan to
test the multiple ports here shortly (need to find my cables first.)


On a side note, I have also port-forwarded the pdc_console to the 
linux-2.5 tree and will finish testing it here shortly.  I will send 
you the updated pdc_console to review before I commit it.

> Perhaps the PDC ROM setup influences the MUX device.

Not sure ... planning on testing shortly  (this weekend possibly)

Thanks,

- Ryan


> Answer is welcome.
> Christoph
> 
> 
> 
> 
> -- 
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 


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On Wed, Nov 13, 2002 at 02:46:13PM -0700, Ryan Bradetich wrote:
> Willy, I have an idea on how to fix this, but it is ugly ... but I will probably
> consider committing it soon unless you have a cleaner idea (hint, hint :))

Well.  I have an idea, but it's even uglier than yours ;-)  It doesn't suffer
from the same problem, so I'll describe it...

> I have a proposal to speed up systems where the devices are at the end of the
> bus ... we can simply walk the first bus range, then the last bus range, if
> nothing found yet ... walk the middle.

here's the current code:

#define READ_IO_IO_LOW(dev) \
        (dev->id.hw_type == HPHW_IOA ? \
                __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_i
o_low) << 16 : \
                __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_i
o_low))

#define READ_IO_IO_HIGH(dev) \
        (dev->id.hw_type == HPHW_IOA ? \
                __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_i
o_high) << 16 : \
                __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_i
o_high))


static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high, 
                            struct parisc_device *parent);

#define FLEX_MASK (unsigned long)0xfffffffffffc0000

void walk_lower_bus(struct parisc_device *dev)
{
        unsigned long io_io_low, io_io_high;

        if(!BUS_CONVERTER(dev) || IS_LOWER_PORT(dev))
                return;

        io_io_low = ((unsigned long)(signed int)READ_IO_IO_LOW(dev) + ~FLEX_MASK
) & FLEX_MASK;
        io_io_high = ((unsigned long)(signed int)READ_IO_IO_HIGH(dev) + ~FLEX_MA
SK) & FLEX_MASK;

        walk_native_bus(io_io_low, io_io_high, dev);
}

My proposal...

#define IO_IO_LOW	offsetof(struct bc_module, io_io_low)
#define IO_IO_HIGH	offsetof(struct bc_module, io_io_high)
#define READ_IO_IO_LOW(dev) __raw_readl(dev->hpa + IO_IO_LOW)
#define READ_IO_IO_HIGH(dev) __raw_readl(dev->hpa + IO_IO_HIGH)

void walk_lower_bus(struct parisc_device *dev)
{
	unsigned long io_io_low, io_io_high;

	if (!BUS_CONVERTER(dev) || IS_LOWER_PORT(dev))
		return;

	if (dev->id.hw_type == HPHW_IOA) {
		io_io_low = (unsigned long)(signed int)(READ_IO_IO_LOW(dev) << 16);
		io_io_high = io_io_low + MAX_NATIVE_DEVICES * NATIVE_DEVICE_OFFSET;
	} else {
		io_io_low = (READ_IO_IO_LOW(dev) + ~FLEX_MASK) & FLEX_MASK;
		io_io_high = (READ_IO_IO_HIGH(dev)+ ~FLEX_MASK) & FLEX_MASK;
	}
	walk_native_bus(io_io_low, io_io_high, dev);
}

-- 
Revolutions do not require corporate support.


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Subject: [parisc-linux] Graphic card for my C200+
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I wonder if anyone has any suggestions for pci graphics cards that are
likely to make X work in my C200+. The one I have at the moment is a
Visualize fx2 which I understand won't be supported in the nearest future. I
have also read some mails about PC cards that might or might not work.
Should I try to make a swap with someone using hpux with a simpler graphic
or what? I really would like to see a list of graphics working on different
machines. Maybe there is one that I just missed.


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: Re: [parisc-linux] Graphic card for my C200+
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As far as I know the only card that had proven to fully work is the EG
graphics card an A4450A and or an A4451A (Dual output) I believe. 
There are some toying with a Voodoo2 type of solution, but it doesn't
quite work yet.

derek

--- Hans-Gran Gustavsson <hgn98009@student.mdh.se> wrote:
> I wonder if anyone has any suggestions for pci graphics cards that
> are
> likely to make X work in my C200+. The one I have at the moment is a
> Visualize fx2 which I understand won't be supported in the nearest
> future. I
> have also read some mails about PC cards that might or might not
> work.
> Should I try to make a swap with someone using hpux with a simpler
> graphic
> or what? I really would like to see a list of graphics working on
> different
> machines. Maybe there is one that I just missed.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


__________________________________________________
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Matthew Wilcox wrote:
> (1) drivers/pci/setup-bus.c.  It looks like most of, but not all, the
> changes in our tree were merged into 2.5.20-rc1.  I've basically taken
> the version we had in 2.4.19 but other changes may be needed.  Grant,
> can you look at this?

I was re-reading this a few times and assumed you meant 2.4.20-rc1.
I'm looking at "cvs diff -r LINUS_2420RC1 drivers/pci/setup-bus.c" output.

The primary difference is for bridge_ctl field. rmk posted the
bridge_ctl patch for 2.5 and it makes managing VGA, FBB, PERR,
SERR bits in cmd register possible per arch.
I'd like to keep this in our tree since we want SERR/PERR *on*
and PC folks in general don't. And parisc really doesn't want
anything to do with VGA stuff...I don't see any reason why this
change doesn't go back to marcello.

The second significant difference is pbus_assign_resources_sorted()
wants to disable all devices while assigning resources. Not a good
thing for our console. I trust PDC to assign sane values to all devices
whether or not all devices are initially configured or enabled.
We don't have to worry about overlapped MMIO ranges or such crap
during later resource assignments.

*sigh* I see "ifndef __hppa__" here (should be CONFIG_PARISC).

We can adopt changes in pci_bridge_check_ranges(), pbus_size_io(),
and pbus_size_mem(). You want to do those or should I?

Anyone, once this is "cleaner", I think ivan/rmk/~r/helgaas probably
want to review the bridge_ctl diff before you submit to marcello.

hth,
grant


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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Graphic card for my C200+
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Xref: news.gmane.org gmane.linux.ports.parisc:16806

Voodoo2 works quite well too, but you'll only get a display with a 
maximum resolution of 800x600x16bpp.

Helge

On Thursday 14 November 2002 03:38, Derek Engelhaupt wrote:
> As far as I know the only card that had proven to fully work is the EG
> graphics card an A4450A and or an A4451A (Dual output) I believe.
> There are some toying with a Voodoo2 type of solution, but it doesn't
> quite work yet.
>
> derek
>
> --- Hans-Gran Gustavsson <hgn98009@student.mdh.se> wrote:
> > I wonder if anyone has any suggestions for pci graphics cards that
> > are
> > likely to make X work in my C200+. The one I have at the moment is a
> > Visualize fx2 which I understand won't be supported in the nearest
> > future. I
> > have also read some mails about PC cards that might or might not
> > work.
> > Should I try to make a swap with someone using hpux with a simpler
> > graphic
> > or what? I really would like to see a list of graphics working on
> > different
> > machines. Maybe there is one that I just missed.
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
> __________________________________________________
> Do you Yahoo!?
> Yahoo! Web Hosting - Let the expert host your site
> http://webhosting.yahoo.com
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Hi All,

Where is the "Section: .PARISC.unwind" for palinux2.0w doing an elfdump on the
kernel I don't see it?

Is it implemented differently

Thanx in advance
Phi


--
mailto:Philippe_Benard@hp.com [ HPS-SE HP-UX kernel debugging tools ]


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On Thu, Nov 14, 2002 at 02:30:23PM +0100, phi wrote:
> Hi All,
> 
> Where is the "Section: .PARISC.unwind" for palinux2.0w doing an elfdump on the
> kernel I don't see it?
> 
> Is it implemented differently

looks like we link it into the .text section:

  .text BLOCK(16) : {
        *(.text*)
        *(.PARISC.unwind)
        *(.fixup)
        *(.lock.text)           /* out-of-line lock text */
        *(.gnu.warning)
        } = 0

(arch/parisc/vmlinux64.lds for linux-2.4; arch/parisc/vmlinux.lds.S
for linux-2.5).  why we do this, i don't know; i'm not a toolchain kind
of guy ;-)

-- 
Revolutions do not require corporate support.


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Subject: [parisc-linux] [IMPORTANT] PDC & Mux console major number changed
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Now that we've been assigned an official major number for Mux, and had
it accepted into 2.5, I've changed 2.4.20-rc1-pa2 to use that number.
So if you're using an E class, a K class or a D/R class with the funky
console thing, before you upgrade from 2.4.19, you MUST rm /dev/ttyB0
and replace it with:

mknod /dev/ttyB0 c 11 0

Yes, breakage like this sucks, but I'd rather do it now than later.

-- 
Revolutions do not require corporate support.


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Xref: news.gmane.org gmane.linux.ports.parisc:16810

> > Where is the "Section: .PARISC.unwind" for palinux2.0w doing an elfdump on the
> > kernel I don't see it?
> > 
> > Is it implemented differently
> 
> looks like we link it into the .text section:

in the kdb branch this was moved (perhaps more appropriately) to the
data section, and surrounded by markers so that you can find the
begin/end. i will add this change to the 2.5 branch. In fact, it
probably should be in the rodata section....

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] strange mail routing problem for mail from this list
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Hi,

I have seen some strange headers on the mail from Grant Grundler's
reply to my posting regarding "[2.5] rtc doesn't build".
I noticed this because the mail came in with a delay > 1 day.

The problem here seems that the mailsystems down under have nothing to
do with either hp, parisc or my mailhosts from what I know.

My question to the list would be if anybody else received mails from
the list going through these systems.

a simple grep for 144.249.122.105 and 212.125.75.12 should be
sufficient.

for me this was:
	egrep -E '(144.249.122.105|212.125.75.12)' Mail/LISTS.linux.parisc

if this is postive for you too please contact me off-list.

Thanks.

PS: the same simple grep should word for the maillogs on
parisc-linux.org if anybody else with access there can find the time.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/

> Received: from mail pickup service by naex017w.apci.com with Microsoft
>     SMTPSVC;
> 	 Wed, 13 Nov 2002 23:39:46 -0500
> Received: from Local ([144.249.122.105]) by 144.249.122.105 with Trend
>     Micro InterScan Messaging Security Suite for SMTP v5.01; Tue,
>      12 Nov 2002 14:01:07 -0500
...
> Received: from mail4.messagelabs.com ([212.125.75.12]) by Local with
>     Microsoft SMTPSVC(5.0.2195.4905);
> 	 Tue, 12 Nov 2002 14:01:07 -0500




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Xref: news.gmane.org gmane.linux.ports.parisc:16812

"Bjoern A. Zeeb" writes...

[snip]
> a simple grep for 144.249.122.105 and 212.125.75.12 should be
> sufficient.
[snip]
> PS: the same simple grep should word for the maillogs on
> parisc-linux.org if anybody else with access there can find the time.

No occurance of those IPs or "messagelabs.com" in any of the 
parisc-linux.org mail logs.

-- 
Matt Taggart
taggart@fc.hp.com




From - Thu Nov 08 21:25:30 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] strange mail routing problem for mail from this
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Xref: news.gmane.org gmane.linux.ports.parisc:16813

> "Bjoern A. Zeeb" writes...
> 
> [snip]
> > a simple grep for 144.249.122.105 and 212.125.75.12 should be
> > sufficient.
> [snip]
> > PS: the same simple grep should word for the maillogs on
> > parisc-linux.org if anybody else with access there can find the time.
> 
> No occurance of those IPs or "messagelabs.com" in any of the 
> parisc-linux.org mail logs.

This might be related to the "Antispam" messages that senders on the
list were receiving.  I received messages of the type above.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


From - Thu Nov 08 21:25:30 2018
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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [IMPORTANT] PDC & Mux console major number changed
Date: Thu, 14 Nov 2002 23:23:21 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:16814

Hello,

I do not think it is a good idea to have the same MAJOR for PDC console
and MUX driver. Those drivers are different in concept, and the PDC
driver is valid for ALL HP machines, independent if it is a 720, 712
800er, ..... The PDC driver used the ROM support and can be used
as fall back in any case.

The MUX driver is the serial driver for those special hardware of HP.
This driver can be handled in two ways:
- Let it be an own driver with special devices, like
		/dev/ttyX0..7 or /dev/ttyM0..7 (or whatever ...)
- Let it become the "default" serial device:
		/dev/ttyS0../dev/ttyS7
   This is only possible, if there is no HP with a 16450-class UART
   and a MUX !!!

So IMO it is better to use the /dev/ttySn for MUX and 16450-like UART
instead of using MUX together with PDC !
PDC is generic and NOT for special HPs. On special HP it is the only
method to use PDC console or now MUX.


With friendly regards
Christoph P.



Matthew Wilcox wrote:
> Now that we've been assigned an official major number for Mux, and had
> it accepted into 2.5, I've changed 2.4.20-rc1-pa2 to use that number.
> So if you're using an E class, a K class or a D/R class with the funky
> console thing, before you upgrade from 2.4.19, you MUST rm /dev/ttyB0
> and replace it with:
> 
> mknod /dev/ttyB0 c 11 0
> 
> Yes, breakage like this sucks, but I'd rather do it now than later.
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] strange mail routing problem for mail from this
Date: Thu, 14 Nov 2002 22:32:57 +0000 (UTC)
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Xref: news.gmane.org gmane.linux.ports.parisc:16815

On Thu, 14 Nov 2002, John David Anglin wrote:

> > "Bjoern A. Zeeb" writes...
> >
> > [snip]
> > > a simple grep for 144.249.122.105 and 212.125.75.12 should be
> > > sufficient.
> > [snip]
> > > PS: the same simple grep should word for the maillogs on
> > > parisc-linux.org if anybody else with access there can find the time.
> >
> > No occurance of those IPs or "messagelabs.com" in any of the
> > parisc-linux.org mail logs.
>
> This might be related to the "Antispam" messages that senders on the
> list were receiving.  I received messages of the type above.

ok, but why ? does parisc-linux run anything related ?

Matt: might you please grep for the postfix msgID 361CF4837 and check
where this mail was sent to from mail.parisc-linux.org aka
dsl2.external.hp.com ? the to= -line is the interesting one...

--- interesting headers again ---
Received: from naex017w.apci.com (smtp2.apci.com [204.27.156.103])
	by ns1.cksoft.de (Postfix) with ESMTP id 232CC15145B
	for <bzeeb-lists@lists.zabbadoz.net>; Thu, 14 Nov 2002 05:54:32 +0100 (CET)
Received: from mail pickup service by naex017w.apci.com with Microsoft
    SMTPSVC;
	 Wed, 13 Nov 2002 23:39:46 -0500
Received: from Local ([144.249.122.105]) by 144.249.122.105 with Trend
    Micro InterScan Messaging Security Suite for SMTP v5.01; Tue,
     12 Nov 2002 14:01:07 -0500
Received: from mail4.messagelabs.com ([212.125.75.12]) by Local with
    Microsoft SMTPSVC(5.0.2195.4905);
	 Tue, 12 Nov 2002 14:01:07 -0500
X-VirusChecked: Checked
X-Env-Sender: parisc-linux-admin@lists.parisc-linux.org
X-Msg-Ref: server-15.tower-4.messagelabs.com!1037127908!34785
Received: (qmail 4995 invoked from network); 12 Nov 2002 19:05:09 -0000
Received: from smtp1.apci.com (HELO naex016w.apci.com) (204.27.156.18)
  by server-15.tower-4.messagelabs.com with SMTP; 12 Nov 2002 19:05:09 -0000
Received: from dsl2.external.hp.com ([192.25.206.7]) by naex016w.apci.com
    with Microsoft SMTPSVC(5.0.2195.4905);
	 Tue, 12 Nov 2002 13:59:59 -0500
Received: from dsl2.external.hp.com (localhost [127.0.0.1])
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To: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] [2.5] rtc doesn't build
In-Reply-To: Message from "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
   of "Tue, 12 Nov 2002 18:57:07 GMT."
    <Pine.BSF.4.44.0211121854470.32930-100000@e0-0.zab2.int.zabbadoz.net>
References:
    <Pine.BSF.4.44.0211121854470.32930-100000@e0-0.zab2.int.zabbadoz.net>
From: Grant Grundler <grundler@dsl2.external.hp.com>
Message-Id: <20021112190427.F11C14829@dsl2.external.hp.com>
X-BeenThere: parisc-linux@lists.parisc-linux.org
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Precedence: bulk
Date: Tue, 12 Nov 2002 12:04:26 -0700
X-OriginalArrivalTime: 12 Nov 2002 18:59:59.0515 (UTC)
    FILETIME=[B2CD76B0:01C28A7D]
--- ... ---

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/




From - Thu Nov 08 21:25:30 2018
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From: "Steve" <webmaster@web-site-promotion-submission-marketing.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Request for link exchange with your web site
Date: Thu, 14 Nov 2002 16:36:39 -0600
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Approved: news@gmane.org
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To: "Parisc Linux" <parisc-linux@lists.parisc-linux.org>
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X-Comments: These headers are here for you to report spam!
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Dear Webmaster,

I visited your web site and would like to exchange links with you. I have already placed your link on my marketing directory page at:

http://www.web-site-promotion-submission-marketing.com  category: Web Traffic, sub-category: Increase Web Traffic
Please link back to our web site

Our link info :

Title : Web Site Promotion Submission Marketing 
Url : http://www.web-site-promotion-submission-marketing.com
Description:   Web Site Promotion Submission Marketing

I would appreciate it if you would place a link back.

Thanks

Best regards,
Steve
webmaster@web-site-promotion-submission-marketing.com




From - Thu Nov 08 21:25:30 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [IMPORTANT] PDC & Mux console major number changed
Date: Thu, 14 Nov 2002 22:44:58 +0000
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On Thu, Nov 14, 2002 at 11:23:21PM +0100, Christoph Plattner wrote:
> I do not think it is a good idea to have the same MAJOR for PDC console
> and MUX driver. Those drivers are different in concept, and the PDC
> driver is valid for ALL HP machines, independent if it is a 720, 712
> 800er, ..... The PDC driver used the ROM support and can be used
> as fall back in any case.

I wish you'd said something before... they've been using the same major
for months now.  Anyway, there's really no point in using the PDC console
if the Mux console works, so I don't see why it's a bad thing.

> The MUX driver is the serial driver for those special hardware of HP.
> This driver can be handled in two ways:
> - Let it be an own driver with special devices, like
> 		/dev/ttyX0..7 or /dev/ttyM0..7 (or whatever ...)

Too late.  Lanana already has the registration:

11 char	Serial Mux device	(Linux/PA-RISC only)
		  0 = /dev/ttyB0	First mux port
		  1 = /dev/ttyB1	Second mux port
		    ...

(http://www.lanana.org/docs/device-list/devices.txt)

> - Let it become the "default" serial device:
> 		/dev/ttyS0../dev/ttyS7
>    This is only possible, if there is no HP with a 16450-class UART
>    and a MUX !!!

There is such a machine; D & R class can have a Mux plugin card and they
also have 16x50 UARTs provided by Lasi & Wax.  (firmware disables Lasi's
UART when this card is plugged in, but Wax's is still active).

-- 
Revolutions do not require corporate support.


From - Thu Nov 08 21:25:31 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] strange mail routing problem for mail from this
Date: Thu, 14 Nov 2002 17:47:27 -0500 (EST)
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Message-ID: <200211142247.gAEMlRrk013091@hiauly1.hia.nrc.ca>
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Cc: taggart@carmen.fc.hp.com, bzeeb-lists@lists.zabbadoz.net,
	parisc-linux@lists.parisc-linux.org
To: bzeeb-lists@lists.zabbadoz.net (Bjoern A. Zeeb)
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> > This might be related to the "Antispam" messages that senders on the
> > list were receiving.  I received messages of the type above.
> 
> ok, but why ? does parisc-linux run anything related ?

They don't.  It's one of the subscribers and everything about the
message is forged.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


From - Thu Nov 08 21:25:31 2018
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From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [2.5] My System ate a SPARC! *haha* 8-(
Date: Fri, 15 Nov 2002 13:58:45 +0000 (UTC)
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On 12 Nov 2002, Ryan Bradetich wrote:

Hi,

> > this it were kernel starts joking ...
> >
> > --- /etc/init.d/initrd-tools.sh ---
> > [ -f /proc/mounts ] || {
> > echo "still ok"
> >         mount -n /proc || exit
> >         trap 'umount -n /proc' EXIT
> > }
> > echo "never reached"
> > --- ... ---
>
> Interesting ... will dig further and see if I can get this fixed.

any outcomes so far ? else I would spent some minutes this weekend
between compiling kernels (which actually will take most time all of
the debugging) to dig into this ...

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



From - Thu Nov 08 21:25:31 2018
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From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [2.5] My System ate a SPARC! *haha* 8-(
Date: Fri, 15 Nov 2002 17:04:24 +0000 (UTC)
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Cc: parisc-linux@lists.parisc-linux.org
To: Ryan Bradetich <rbradetich@uswest.net>
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On Fri, 15 Nov 2002, Bjoern A. Zeeb wrote:

> any outcomes so far ? else I would spent some minutes this weekend
> between compiling kernels (which actually will take most time all of
> the debugging) to dig into this ...

1 compile. no debugging:

Linux version 2.5.47-pa3 (bz@apollo) (gcc version 3.2) #7 Fri Nov 15 15:28:16 UTC 2002

boots up fine :-))  with cvs from 1400 UTC today.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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Hi,

2.5.47-pa3 up and running I added my vlan interface, ssh'ed to the
host and *buff*


--- 8< 8< ---
Stack Dump:
 14db4000:

Kernel addresses on the stack:


Kernel Fault: Code=15 regs=14db4000 (Addr=4c4c4c4c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 10290810 101b4134 4c4c0000
r04-07  4c4c4c4c 4c4c4c4d 14db7000 14db3e48
r08-11  00000001 00000000 00000000 40018000
r12-15  14db798c 14dac290 000e7760 faf00fdc
r16-19  000e7760 ffffffe8 00000004 0000000b
r20-23  0000000b 0000000f 00000000 00000001
r24-27  106fd160 00000000 150d7000 10274010
r28-31  00000000 000b7cc1 14db4000 101b3278
sr0-3   00000000 00000632 00000000 00000632
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101b40f0 101b40f4
 IIR: 0c821033    ISR: 00000000  IOR: 4c4c4c4c
 CPU:        0   CR30: 14dac000 CR31: 102a2000
 ORIG_R28: 00000000
--- 8< 8< ---



So I booted up again to have a look at System.map but....



--- 8< 8< ---
Checking root file system...
fsck 1.30-WIP (30-Sep-2002)
/dev/sda3 was not cleanly unmounted, check forced.
...
    | 84.5%   fsck.ext2(27): unaligned access to 0x0004feff at ip=0x000140af
fsck.ext2(27): unaligned access to 0x0004feff at ip=0x000140c3
Not-handled unaligned insn 0x27c11018
Unaligned handler failed, ret = -1
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
fsck.ext2(27): Unaligned data reference
fsck.ext2(27): unaligned access to 0x0004feff at ip=0x000140c3
Not-handled unaligned insn 0x27c11018
Unaligned handler failed, ret = -1
      _______________________________
...
--- 8< 8< ---

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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> Hi,
> 
> 2.5.47-pa3 up and running I added my vlan interface, ssh'ed to the
> host and *buff*
> 

I noticed that your 'uname -a' says you compiled the kernel with gcc-3.2.
AFAIK we have yet to build a kernel with gcc-3.2 that survives network 
traffic. Perhaps try building the kernel with gcc 3.1 or 3.0? 

Helping track down the gcc-3.2 problem would be a wonderful thing :)

c.



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> I noticed that your 'uname -a' says you compiled the kernel with gcc-3.2.
> AFAIK we have yet to build a kernel with gcc-3.2 that survives network 
> traffic. Perhaps try building the kernel with gcc 3.1 or 3.0? 

3.1.1 and 3.2 are identical except for a change in C++ abi, so as far
as kernel building goes they should be the same.  3.3 has a small struct
ABI fix (affects passing of 5-7 byte structs by value), improved long calls
and a workaround for a linker bug affecting PA 2.0 float loads.  If I
was picking, I would go with the current mainline 3.3 or the debian 3.0.

My impression from what Joel has said is that the problem is bad coding
rather than an actual gcc problem.  However, up to now, nobody has been
able to provide a precise analysis of what's going on.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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In reference to a message from John David Anglin, dated Nov 15:
> > I noticed that your 'uname -a' says you compiled the kernel with gcc-3.2.
> > AFAIK we have yet to build a kernel with gcc-3.2 that survives network 
> > traffic. Perhaps try building the kernel with gcc 3.1 or 3.0? 
> 
> 3.1.1 and 3.2 are identical except for a change in C++ abi, so as far
> as kernel building goes they should be the same.  3.3 has a small struct
> ABI fix (affects passing of 5-7 byte structs by value), improved long calls
> and a workaround for a linker bug affecting PA 2.0 float loads.  If I
> was picking, I would go with the current mainline 3.3 or the debian 3.0.
> 
> My impression from what Joel has said is that the problem is bad coding
> rather than an actual gcc problem.  However, up to now, nobody has been
> able to provide a precise analysis of what's going on.

or even duplicate the problem.. i've been building 2.4 and 2.5 kernels
with 3.2 for some time.... haven't seen the problems that have been
reported.

randolph


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> > My impression from what Joel has said is that the problem is bad coding
> > rather than an actual gcc problem.  However, up to now, nobody has been
> > able to provide a precise analysis of what's going on.
> 
> or even duplicate the problem.. i've been building 2.4 and 2.5 kernels
> with 3.2 for some time.... haven't seen the problems that have been
> reported.
> 

32 or 64-bit kernels? All debian tools? Mix of debian and upstream?

My only run-in with the problem was with 32-bit kernels cross compiled
from x86. Though lately I'm using a gcc-3.1 based XC and it builds functional
64-bit kernels.

This is definately becoming one of those HPPA urban legends. I shall add
it to my TODO list and verify that I can build a 32/64-bit kernel
natively and cross with all the latest upstream cvs bits.

c.



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On Fri, 15 Nov 2002, John David Anglin wrote:

> 3.1.1 and 3.2 are identical except for a change in C++ abi, so as far
> as kernel building goes they should be the same.  3.3 has a small struct

ok.

> ABI fix (affects passing of 5-7 byte structs by value), improved long calls
> and a workaround for a linker bug affecting PA 2.0 float loads.  If I

no PA 2.0 here.

> was picking, I would go with the current mainline 3.3 or the debian 3.0.

ok, how and where to get 3.3 from ?
	- subversions.gnu.org cvs ?
	- cvs.parisc-linux.org cvs ? (looks older)

I am going to dig into this.

What about binutils 2.13.90.0.10-2 ... do you know what changes where
there from previous versions ?

Ok, first thing I am going to do is build with gcc 3.0.4 and see if it
works.

all native building btw. here.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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> no PA 2.0 here.

If you use a PA 2.0 machine and don't care if your code is compatible
with older machines, then using PA 2.0 code provides a number of
advantages.  Probably, the most important is the change in the maximum
branch distance for pc-relative calls (22-bit vs. 17-bit relocation).
In large programs, it easy to exceed the maximum distance of the 17-bit
relocation.

> > was picking, I would go with the current mainline 3.3 or the debian 3.0.
> 
> ok, how and where to get 3.3 from ?
> 	- subversions.gnu.org cvs ?

This is a mirror of the main gcc source.  I use it except for submissions.

> 	- cvs.parisc-linux.org cvs ? (looks older)
> 
> I am going to dig into this.
> 
> What about binutils 2.13.90.0.10-2 ... do you know what changes where
> there from previous versions ?

I use the main binutils source.  Don't know anything about the debian
changes.  They should be fed back for review if the have any merit.
However, I think Alan Modra did that awhile ago when he was working
on the PA toolchain.

> Ok, first thing I am going to do is build with gcc 3.0.4 and see if it
> works.

Be aware that debian 3.0.4 suffers from a problem where calls that have
a branch distance exceeding the max for a 17-bit relocation are not
correctly changed to an indirect call in all cases.  This will cause a
problem building expr.c in stage1 if you don't include "-O2" in STAGE1_CFLAGS.
This is fixed in 3.1 and latter.  The 3.1/3.2 fix didn't include millicode
calls or PA 2.0 adjustments.  That's now in 3.3.

I'll be glad when debian 3.0.4 is gone.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> I'll be glad when debian 3.0.4 is gone.

Amen! :-) hopefully we are going to start gcc-3.2 transition fairly
soon.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> Amen! :-) hopefully we are going to start gcc-3.2 transition fairly
> soon.

Don't wait too long!  3.3 may have slipped a bit but the schedule
still shows Dec. 15 2002 as the release date.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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--fUYQa+Pmc3FrFX/N
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	pci_dma_supported is not supposed to have any side effects,
but the parisc versions set pci_dev->dma_mask, which is not the
intended behavior.  A driver could call check pci_dma_supported for a
variety of values in any particular order without expected the dma
mask to have actually been changed.  To change the DMA mask, drivers
call pci_set_dma_mask (in drivers/pci/pci.c), which, by the way, does
call machine-specific pci_dma_supported routine to ensure that the
desired mask is acceptable.

	The following patch fixes the problem.  It also has the
benefit of eliminating some direct writing to pci_dev->dma_mask,
which is what caused me to notice this problem.

	I do not have any parisc machines or normally build parisc
kernels.  So, I have not even verified that this change compiles.

	If somebody could give these deletions a whirl and then send
them by whatever the preferred process is to get them into the
mainline kernel, I would appreciate it.  If there is more that I
should do to facilitate this, please let me know.

-- 
Adam J. Richter     __     ______________   575 Oroville Road
adam@yggdrasil.com     \ /                  Milpitas, California 95035
+1 408 309-6081         | g g d r a s i l   United States of America
                         "Free Software For The Rest Of Us."

--fUYQa+Pmc3FrFX/N
Content-Type: text/plain; charset=us-ascii
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--- linux-2.5.47/drivers/parisc/ccio-dma.c	2002-11-10 19:28:05.000000000 -0800
+++ linux/drivers/parisc/ccio-dma.c	2002-11-16 05:23:47.000000000 -0800
@@ -603,18 +603,16 @@
 ccio_dma_supported(struct pci_dev *dev, u64 mask)
 {
 	if(dev == NULL) {
 		printk(KERN_ERR MODULE_NAME ": EISA/ISA/et al not supported\n");
 		BUG();
 		return 0;
 	}
 
-	dev->dma_mask = mask;   /* save it */
-
 	/* only support 32-bit devices (ie PCI/GSC) */
 	return (int)(mask == 0xffffffffUL);
 }
 
 /**
  * ccio_map_single - Map an address range into the IOMMU.
  * @dev: The PCI device.
  * @addr: The start address of the DMA region.
--- linux-2.5.47/drivers/parisc/ccio-rm-dma.c	2002-11-10 19:28:06.000000000 -0800
+++ linux/drivers/parisc/ccio-rm-dma.c	2002-11-16 05:23:44.000000000 -0800
@@ -69,18 +69,16 @@
 static int ccio_dma_supported( struct pci_dev *dev, u64 mask)
 {
 	if (dev == NULL) {
 		printk(KERN_ERR MODULE_NAME ": EISA/ISA/et al not supported\n");
 		BUG();
 		return(0);
 	}
 
-	dev->dma_mask = mask;   /* save it */
-
 	/* only support 32-bit devices (ie PCI/GSC) */
 	return((int) (mask >= 0xffffffffUL));
 }
 
 
 static void *ccio_alloc_consistent(struct pci_dev *dev, size_t size,
 				 dma_addr_t *handle)
 {
--- linux-2.5.47/drivers/parisc/sba_iommu.c	2002-11-10 19:28:28.000000000 -0800
+++ linux/drivers/parisc/sba_iommu.c	2002-11-16 05:23:51.000000000 -0800
@@ -806,18 +806,16 @@
 sba_dma_supported( struct pci_dev *dev, u64 mask)
 {
 	if (dev == NULL) {
 		printk(KERN_ERR MODULE_NAME ": EISA/ISA/et al not supported\n");
 		BUG();
 		return(0);
 	}
 
-	dev->dma_mask = mask;	/* save it */

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On Fri, 15 Nov 2002, John David Anglin wrote:

> > Amen! :-) hopefully we are going to start gcc-3.2 transition fairly
> > soon.
>
> Don't wait too long!  3.3 may have slipped a bit but the schedule
> still shows Dec. 15 2002 as the release date.

I'm not very familiar with the pa-risc internals, but I wonder whether it
is probably a better idea to wait for 3.3?. I've followed the parisc-linux
and the gcc-mailing lists and IMHO gcc-3.3 provides lots of
improvements, not just for Intel, but also for PA-RISC. E.g. a new
scheduler which provides better optimizations (for PA-RISC and lots of
bugfixes are in 3.3. More over the C++ ABI will be changed again, so a
couple  of packages would have to be rebuild AGAIN if we stick to 3.2 (if
not the 3.2-ABI compatibility is used). The people at gcc are just about
to release 3.2.1 and from then they're just focussing on the 3.3-release.
AFAIK they are also to resolve some gcc-hpux/linux issues at the moment,
and I doubt they are going to be in gcc-3.2.1. You probably know much
better than me, but that's just my 2 cent.

I know, it's not the usual debian way (using well tested and very stable
packages), but Linux/PA-RISC is improving/has so much possibilities
to improve, and one major package that contributes to this alot is gcc.


greetings max

PS: I offered to help to track down the problems with Voodoo3 and C240,
but right now I'm really busy (e.g. moving to a new home over the
weekend). Hopefully I'll finnaly have a DSL flatline at home, so I can
work from home ;)



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Subject: Re: [parisc-linux] Patch: linux-2.5.47/drivers/parisc/ - pci_dma_supported had side effect
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"Adam J. Richter" wrote:
> 	pci_dma_supported is not supposed to have any side effects,
> but the parisc versions set pci_dev->dma_mask, which is not the
> intended behavior.

That's my bad. At some point in time, it was in fact correct.
Thanks for catching this.

> A driver could call check pci_dma_supported for a
> variety of values in any particular order without expected the dma
> mask to have actually been changed.

I think pci_dma_supported() is obsoleted by pci_set_dma_mask().
Maybe they mean/do slightly different things.
But most of the drivers I've looked at only use pci_set_dma_mask().

> To change the DMA mask, drivers
> call pci_set_dma_mask (in drivers/pci/pci.c), which, by the way, does
> call machine-specific pci_dma_supported routine to ensure that the
> desired mask is acceptable.

Yes. I can feel a bit better since I suggested davem use a macro
(pci_set_dma_mask()) to set the dma_mask field instead of just
having drivers set the dma_mask field themselves.

> 	The following patch fixes the problem.  It also has the
> benefit of eliminating some direct writing to pci_dev->dma_mask,
> which is what caused me to notice this problem.
> 
> 	I do not have any parisc machines or normally build parisc
> kernels.  So, I have not even verified that this change compiles.
> 
> 	If somebody could give these deletions a whirl and then send
> them by whatever the preferred process is to get them into the
> mainline kernel, I would appreciate it.  If there is more that I
> should do to facilitate this, please let me know.

I'll take care it. Thanks!

grant


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Subject: Re: [parisc-linux] Patch: linux-2.5.47/drivers/parisc/ - pci_dma_supported had side effect
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Grant Grundler wrote:
> I think pci_dma_supported() is obsoleted by pci_set_dma_mask().

nope, it hasn't.
pci_set_dma_mask() in fact calls pci_dma_supported().
I haven't look at that code in a while...

grant


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On Fri, 15 Nov 2002, John David Anglin wrote:

Hi,

> > Ok, first thing I am going to do is build with gcc 3.0.4 and see if it
> > works.
>
> Be aware that debian 3.0.4 suffers from a problem where calls that have
...


had 2.5.47-pa3 compiled with 3.0.4 up ad running
Linux version 2.5.47-pa3 (bz@apollo) (gcc version 3.0.4) #8 Fri Nov 15 23:38:21 UTC 2002

but had trouble with unaligned page access:
--- 8< 8< 8< ---
bz@apollo:~> sshd(315): unaligned access to 0x0006fe7b at ip=0x00020eaf
sshd(315): unaligned access to 0x0006feaf at ip=0x00020eb3
sshd(315): unaligned access to 0x0006feb3 at ip=0x00020eb7
sshd(315): unaligned access to 0x0006feb7 at ip=0x00020ebb
sshd(315): unaligned access to 0x0006febb at ip=0x00020ebf
sshd(315): unaligned access to 0x0006febf at ip=0x00020ec3
sshd(315): unaligned access to 0x0006fec3 at ip=0x00020ec7
sshd(315): unaligned access to 0x0006fec7 at ip=0x00020ecb
sshd(315): unaligned access to 0x0006fecb at ip=0x00020ecf

bz@apollo:~>
bz@apollo:~> dmesg
ommand='sshd' type=6 address=0xed0e6013
vm_start = 0x402b9000, vm_end = 0x402bc000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 fffff000 ed0e6012 59e85014
r04-07  10080302 9d887d40 590cb010 f9080302
r08-11  5ae85014 10080802 42887c40 000e7760
r12-15  00000001 000f7f60 000e7760 000e7760
r16-19  000e7760 00000004 00000004 401dd300
r20-23  0000008e 40166ed4 00000000 00000000
r24-27  000feb50 00000000 00000006 000e7760
r28-31  00000001 00108fe8 0006fe8f 40166ee3
sr0-3   00000000 00000598 00000000 00000598
sr4-7   00000598 00000598 00000598 00000598

IASQ: 00000598 00000598 IAOQ: ed0e6013 ed0e6017
 IIR: 0e760013    ISR: 00000598  IOR: 0006fecb
 CPU:        0   CR30: 151c8000 CR31: 102ac000
 ORIG_R28: 00000000
...
--- 8< 8< 8< ---

Thus it should really be a compiler prob.

So what I did then was ''compiling'' (hopefully) everything with
gcc -S for 3.0.4 and 3.2. Then made a diff between both trees.

For those assembler gurus interested: I placed the bzip2ed diffs at
	http://www.zabbadoz.net/zabbadoz-network/apollo/linux-testing/
in file  gcc-S.diff.bz2 is the wohle diff (without unneccesarry parts)
and file gcc-S-net.diff.bz2 is only linux/net part.
If one really takes a look and needs the whole files, please drop me a
note. I will save them for one or two weeks.


Now I checkout gcc from cvs, updated linux-2.5-pa cvs and compiling...
But it takes ages... and hopefully I will not run out of diskspace
again... let's see what happens...


-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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Subject: [parisc-linux] [chris@qwirx.com: eisa_eeprom.c misc_register patch]
Date: Sun, 17 Nov 2002 16:13:19 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:16836

Daniel, I presume you're interested in maintaining this code?

----- Forwarded message from Chris Wilson <chris@qwirx.com> -----

Envelope-to: willy@ftp.uk.linux.org
Delivery-date: Sun, 17 Nov 2002 15:53:19 +0000
Date: Sun, 17 Nov 2002 15:53:16 +0000 (GMT)
From: Chris Wilson <chris@qwirx.com>
X-X-Sender: chris@top.qwarx.com
To: Matthew Wilcox <willy@debian.org>,
   Linux Kernel Janitors <kernel-janitor-discuss@lists.sourceforge.net>
cc: Trivial Patch Monkey <trivial@rustcorp.com.au>
Subject: eisa_eeprom.c misc_register patch

Dear Sirs,

As part of my work on the Linux Kernel Janitors project, cleaning up on 
functions which call misc_register and don't check for an error return, I 
would like to submit my patch to drivers/parisc/eisa_eeprom.c. 

This patch simply causes the function to printk() an error and return the
error code from misc_register() if it fails. I hope this is the right
thing to do. It also changes the code layout (but not function) slightly,
and flags a condition that I'm not sure about: If no address is supplied
to its initialisation function, should it really return with no error,
despite the fact that it hasn't done anything useful?

Cheers, Chris.
-- 
_ ___ __     _
 / __/ / ,__(_)_  | Chris Wilson <0000 at qwirx.com> - Cambs UK |
/ (_/ ,\/ _/ /_ \ | Security/C/C++/Java/Perl/SQL/HTML Developer |
\ _/_/_/_//_/___/ | We are GNU-free your mind-and your software |


diff -ru8 linux-2.5.47/drivers/parisc/eisa_eeprom.c linux-2.5.47-chris/drivers/parisc/eisa_eeprom.c
--- linux-2.5.47/drivers/parisc/eisa_eeprom.c	Mon Nov 11 03:28:29 2002
+++ linux-2.5.47-chris/drivers/parisc/eisa_eeprom.c	Sun Nov 17 15:42:30 2002
@@ -91,17 +91,27 @@
 {
 	EISA_EEPROM_MINOR,
 	"eisa eeprom",
 	&eisa_eeprom_fops
 };
 
 int __init eisa_eeprom_init(unsigned long addr)
 {
-	if (addr) {
-		eeprom_addr = addr;
-		misc_register(&eisa_eeprom_dev);
-		printk(KERN_INFO "EISA EEPROM at 0x%lx\n", eeprom_addr);
+	int retval;
+
+	/* XXX why return success when we haven't done anything? */
+	if (!addr)
+		return 0;
+
+	eeprom_addr = addr;
+
+	retval = misc_register(&eisa_eeprom_dev);
+	if (retval < 0) {
+		printk(KERN_ERR "EISA EEPROM: cannot register misc device.\n");
+		return retval;
 	}
+
+	printk(KERN_INFO "EISA EEPROM at 0x%lx\n", eeprom_addr);
 	return 0;
 }
 
 MODULE_LICENSE("GPL");


----- End forwarded message -----

-- 
Revolutions do not require corporate support.


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On Fri, 15 Nov 2002, John David Anglin wrote:

> was picking, I would go with the current mainline 3.3 or the debian 3.0.

Have you been able to compile a pre3.3 from CVS on parisc ?

regex.c:8214: internal compiler error: Segmentation fault
Please submit a full bug report,

*tralalala*

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



From - Thu Nov 08 21:25:33 2018
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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] [RFC] Patch to handle parisc-device quirks/bugs.
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Hello parisc-linux hackers,

I have written a small patch to handle a case on the E35 where
the device is mis-reported.  Specifically, the upper port of the
HP-PB bus converter is reported as:

	U2-IOA BC GSC+ Port

This is obviously wrong since U2 connects runway to GSC and this
bus converer is attempting to connect GSC to HP-PB. The correct
bus converter is:

	Gecko BOA BC GSC+ Port

The following patch fixes this problem by adding a HP hardare
quirks table, and fixing up the device early on in the discovery
process so everything else just works.


My question about the patch is is the interface generic enough.
The one thing I do not like is depending upon the HPA of the
device to determine the quirk, but I could not think of a 
different/better way to handle this.

Thoughts?

- Ryan




Index: arch/parisc/kernel/drivers.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/drivers.c,v
retrieving revision 1.5
diff -u -p -r1.5 drivers.c
--- arch/parisc/kernel/drivers.c	16 Nov 2002 17:54:08 -0000	1.5
+++ arch/parisc/kernel/drivers.c	17 Nov 2002 18:54:37 -0000
@@ -416,6 +416,8 @@ alloc_pa_dev(unsigned long hpa, struct h
 	dev->id.sversion = ((iodc_data[4] & 0x0f) << 16) |
 			(iodc_data[5] << 8) | iodc_data[6];
 	dev->hpa = hpa;
+
+	parisc_hardware_quirks(dev);
 	name = parisc_hardware_description(&dev->id);
 	if (name) {
 		strncpy(dev->name, name, sizeof(dev->name)-1);
Index: arch/parisc/kernel/hardware.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/hardware.c,v
retrieving revision 1.4
diff -u -p -r1.4 hardware.c
--- arch/parisc/kernel/hardware.c	3 Nov 2002 01:52:48 -0000	1.4
+++ arch/parisc/kernel/hardware.c	17 Nov 2002 18:54:38 -0000
@@ -1289,6 +1289,21 @@ char *cpu_name_version[][2] = {
 	[pcxw2]	{ "PA8700 (PCX-W2)",	"2.0" }
 };
 
+static struct hp_hardware_quirk {
+	unsigned long hpa;
+	struct parisc_device_id quirk;
+	struct parisc_device_id real;
+} hp_hardware_quirk_list[] __initdata = {
+	/* E35 - Gecko BOA GSC Bus Converter is reported */
+	/* 	 as a U2 GSC Bus converter. */
+	{ 0xfffb8000,	{HPHW_BCPORT, 0, 0x501, 0x0000c },
+			{HPHW_BCPORT, 0, 0x500, 0x0000c }},
+
+	/* NULL terminated list */
+	{ 0x0,		{ HPHW_FAULTY, 0, 0x00, 0x0 },
+			{ HPHW_FAULTY, 0, 0x00, 0x0 }},
+};
+
 const char * __init
 parisc_hardware_description(struct parisc_device_id *id)
 {
@@ -1343,3 +1358,21 @@ parisc_get_cpu_type(unsigned long hversi
 	return pcx;	/* not reached: */
 }
 
+
+void __init parisc_hardware_quirks(struct parisc_device *dev)
+{
+	struct hp_hardware_quirk *list;
+
+	for(list = hp_hardware_quirk_list; list->hpa; list++) {
+		if((dev->hpa == list->hpa) && 
+			(dev->id.hw_type == list->quirk.hw_type) &&
+			(dev->id.hversion == list->quirk.hversion) &&
+			(dev->id.sversion == list->quirk.sversion)) 
+		{
+			dev->id.hw_type = list->real.hw_type;
+			dev->id.hversion = list->real.hversion;
+			dev->id.sversion = list->real.sversion;
+			return;
+		}
+	}
+}
Index: include/asm-parisc/hardware.h
===================================================================
RCS file: /var/cvs/linux-2.5/include/asm-parisc/hardware.h,v
retrieving revision 1.3
diff -u -p -r1.3 hardware.h
--- include/asm-parisc/hardware.h	20 Jul 2002 15:52:25 -0000	1.3
+++ include/asm-parisc/hardware.h	17 Nov 2002 18:54:38 -0000
@@ -131,6 +131,7 @@ struct bc_module {
 /* hardware.c: */
 extern const char *parisc_hardware_description(struct parisc_device_id *id);
 extern enum cpu_type parisc_get_cpu_type(unsigned long hversion);
+extern void parisc_hardware_quirks(struct parisc_device *dev);
 
 struct pci_dev;
 





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Subject: Re: [parisc-linux] [RFC] Patch to handle parisc-device quirks/bugs.
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Ryan Bradetich wrote:
> The one thing I do not like is depending upon the HPA of the
> device to determine the quirk, but I could not think of a 
> different/better way to handle this.

Could you also check the IODC device type?
Or is that also wrong?
If HPA and type match, then I'd be comfortable with it.

grant


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Grant,

I test the hpa, hw_type, hversion, and sversion for the quirk.  If all
these match, then I update the parisc_device_id with the device it
should be.

+               if((dev->hpa == list->hpa) &&
+                       (dev->id.hw_type == list->quirk.hw_type) &&
+                       (dev->id.hversion == list->quirk.hversion) &&
+                       (dev->id.sversion == list->quirk.sversion))


Thanks,

- Ryan


On Sun, 2002-11-17 at 12:33, Grant Grundler wrote:
> Ryan Bradetich wrote:
> > The one thing I do not like is depending upon the HPA of the
> > device to determine the quirk, but I could not think of a 
> > different/better way to handle this.
> 
> Could you also check the IODC device type?
> Or is that also wrong?
> If HPA and type match, then I'd be comfortable with it.
> 
> grant
> 




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] [RFC] Patch to handle parisc-device quirks/bugs.
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On Sun, Nov 17, 2002 at 12:05:09PM -0700, Ryan Bradetich wrote:
> The following patch fixes this problem by adding a HP hardare
> quirks table, and fixing up the device early on in the discovery
> process so everything else just works.

We have some other occurrences of this kind of problem:

Graphics cards are frequently wrong.
HSC-PCI cards show up with the wrong sversion in 715/Mirage machines.
One of the Dinos in the J2240 has the wrong sversion.

We ignore the problem for gfx cards since we don't use the IDs anyway.
The Dino problems are solved by additional IDs in the Dino driver.

It is legitimate for a driver to refuse to claim a device that it's
advertised for.  So my personl preference is to advertise for all BC
ports, and then refuse to claim the ones which are actually lower ports.
That confines the knowledge to one driver.

This scheme doesn't fix the device name printout, but that seems less
important.

-- 
Revolutions do not require corporate support.


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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] [RFC] Patch to handle parisc-device quirks/bugs.
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On Sun, 2002-11-17 at 13:00, Matthew Wilcox wrote:
> On Sun, Nov 17, 2002 at 12:05:09PM -0700, Ryan Bradetich wrote:
> > The following patch fixes this problem by adding a HP hardare
> > quirks table, and fixing up the device early on in the discovery
> > process so everything else just works.
> 
> We have some other occurrences of this kind of problem:
> 
> Graphics cards are frequently wrong.
> HSC-PCI cards show up with the wrong sversion in 715/Mirage machines.
> One of the Dinos in the J2240 has the wrong sversion.

These could easily be added to the quirks list also :)

> We ignore the problem for gfx cards since we don't use the IDs anyway.
> The Dino problems are solved by additional IDs in the Dino driver.

ditto.

> It is legitimate for a driver to refuse to claim a device that it's
> advertised for.  So my personl preference is to advertise for all BC
> ports, and then refuse to claim the ones which are actually lower ports.
> That confines the knowledge to one driver.


So for this case, you would rather see the U2 GSC+ port added to the
hppb.c driver, and simply not-claim any driver that does not reside on
the central bus?  This would work because ccio only claims devices for
the U2 runway side, not the GSC side.

> This scheme doesn't fix the device name printout, but that seems less
> important.

The quirks fixes the print-outs, plus all these problems are fixed in
one place, drivers do not even to know there was a problem.

Either way works for me really, just pointing out the reason I built it
as a quirk table to begin with.

Thanks,

-Ryan

> -- 
> Revolutions do not require corporate support.
> 




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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] [RFC] Patch to handle parisc-device quirks/bugs.
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Ryan Bradetich wrote:
> > This scheme doesn't fix the device name printout, but that seems less
> > important.
> 
> The quirks fixes the print-outs, plus all these problems are fixed in
> one place, drivers do not even to know there was a problem.

For users, the name printout *is* important.
It helps determine which devices are really in the box and are supported.

grant


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> On Fri, 15 Nov 2002, John David Anglin wrote:
> 
> > was picking, I would go with the current mainline 3.3 or the debian 3.0.
> 
> Have you been able to compile a pre3.3 from CVS on parisc ?

Yes, many many times.  However, I almost never start from debian 3.0.4.

> regex.c:8214: internal compiler error: Segmentation fault
> Please submit a full bug report,

If this occurred in stage1, the seg fault was in the bootstrap compiler.
Problems with debian 3.0.4 need to be reported on the debian list.
Otherwise, follow the directions for a GCC bug report.

When I saw your report, I started a new bootstrap and it has passed the
point of the above ICE.  Thus, the problem could be in the following
areas:

1) Your bootstrap compiler is broken for one reason or another.  Regex.c
   is a pretty stable bit of code.

2) Your system is unstable.  Various parisc-linux systems have had memory
   management problems causing random segmentation faults.  This has been
   particularly true for SMP configurations.  Sometimes just restarting
   the build will work in this case.

3) There have been problems with bash causing seg faults.  Glibc could
   be involved.

You have to be specific about with compiler version was used for the
bootstrap and the configuration options used for the build.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Sun, 17 Nov 2002, John David Anglin wrote:

> > regex.c:8214: internal compiler error: Segmentation fault
> > Please submit a full bug report,
>
> When I saw your report, I started a new bootstrap and it has passed the
> point of the above ICE.  Thus, the problem could be in the following

that fast *waeehhh* someone missed that last zero at 715/100(0) 8-(

> areas:
>
> 1) Your bootstrap compiler is broken for one reason or another.  Regex.c
>    is a pretty stable bit of code.

was gcc-3.2; now changed my PATH again and is debian 3.0.4 now in
second run; looks fine so far; takes pretty long for -o java/parse.o
again ...


> 2) Your system is unstable.  Various parisc-linux systems have had memory
>    management problems causing random segmentation faults.  This has been

maybe... have some  ... in dmesg (running 2.4.18-pa33):

do_page_fault() pid=22502 command='conftest' type=15 address=0x40019000
vm_start = 0x40018000, vm_end = 0x40019000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011100000000100001111 Not tainted
r00-03  00000000 00021248 000109df 40176300
r04-07  00021386 00021248 0002135e 00000001
r08-11  0002137e 00000000 000d8f68 000f9008
r12-15  00000008 000e8d08 000d8f68 000e95e8
r16-19  00000000 000d24a4 0009e800 00000001
r20-23  40019000 40018000 4005e2fc 00000008
r24-27  0002152c 00000000 00010ff8 00021248
r28-31  00000000 00000219 faf00800 401038e7
sr0-3   00000014 00000014 00000000 00000014
sr4-7   00000014 00000014 00000014 00000014

IASQ: 00000014 00000014 IAOQ: 000109db 00010613
 IIR: 0e931200    ISR: 00000014  IOR: 40019000
 CPU:        0   CR30: 13560000 CR31: 103a0000
 ORIG_R28: 00000000


> 3) There have been problems with bash causing seg faults.  Glibc could
>    be involved.

no bash, nowhere, never, not as dflt ! 2> /dev/null ;-))


> You have to be specific about with compiler version was used for the
> bootstrap and the configuration options used for the build.

gcc-3.2  and --enable-nls=no

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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> had 2.5.47-pa3 compiled with 3.0.4 up ad running
> Linux version 2.5.47-pa3 (bz@apollo) (gcc version 3.0.4) #8 Fri Nov 15 23:38:21 UTC 2002
> 
> but had trouble with unaligned page access:
> --- 8< 8< 8< ---
> bz@apollo:~> sshd(315): unaligned access to 0x0006fe7b at ip=0x00020eaf
> sshd(315): unaligned access to 0x0006feaf at ip=0x00020eb3

It should be relatively simple to determine what is causing these.
Use objdump or gdb to disassemble the code at the above locations.
The two least-significant bits in the ip addresses should be zeroed
when you do this.

I doubt this is actually a gcc problem but it might be.  I have been
running sshd built with gcc under hpux for years and have built the
latest version with 3.3.  HPUX doesn't have an unaligned trap handler
so the code would just seg fault if the same problem occurred there.

> bz@apollo:~>
> bz@apollo:~> dmesg
> ommand='sshd' type=6 address=0xed0e6013
> vm_start = 0x402b9000, vm_end = 0x402bc000

This is an insn TLB miss fault, so either sshd has branched to
never-never-land or there is a system problem in the management
of the page tables.  In either case, this will be very hard to
debug.  You might get somewhere running sshd under gdb if the
problem is in userland.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> that fast *waeehhh* someone missed that last zero at 715/100(0) 8-(

Yes, full bootstrap and check is close to 24 hours on 100MHz machines.

> do_page_fault() pid=22502 command='conftest' type=15 address=0x40019000
> vm_start = 0x40018000, vm_end = 0x40019000

Faults involving conftest are probably ok.

> no bash, nowhere, never, not as dflt ! 2> /dev/null ;-))

What's /bin/sh?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: [parisc-linux] Re: [chris@qwirx.com: eisa_eeprom.c misc_register patch]
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On 2002.11.17 17:13 Matthew Wilcox wrote:
> 
> Daniel, I presume you're interested in maintaining this code?
Well, I have spent too much time on PA hacking for a while.

But the patch seems ok to me. As for the return-code: it is not 
checked by is only caller drivers/gsc/eisa.c:eisa_probe() so it does
not matter, currently. 

One other problem with this driver is the following line:

#define         EISA_EEPROM_MINOR 241

I tried to get a minor number when I wrote the code, but my emails
was not answered. Do we currently have a methos of aquiring misc 
minor numbers that work?

/Daniel
 
> ----- Forwarded message from Chris Wilson <chris@qwirx.com> -----
> 
> Envelope-to: willy@ftp.uk.linux.org
> Delivery-date: Sun, 17 Nov 2002 15:53:19 +0000
> Date: Sun, 17 Nov 2002 15:53:16 +0000 (GMT)
> From: Chris Wilson <chris@qwirx.com>
> X-X-Sender: chris@top.qwarx.com
> To: Matthew Wilcox <willy@debian.org>,
>    Linux Kernel Janitors <kernel-janitor-discuss@lists.sourceforge.net>
> cc: Trivial Patch Monkey <trivial@rustcorp.com.au>
> Subject: eisa_eeprom.c misc_register patch
> 
> Dear Sirs,
> 
> As part of my work on the Linux Kernel Janitors project, cleaning up on 
> functions which call misc_register and don't check for an error return, I 
> would like to submit my patch to drivers/parisc/eisa_eeprom.c. 
> 
> This patch simply causes the function to printk() an error and return the
> error code from misc_register() if it fails. I hope this is the right
> thing to do. It also changes the code layout (but not function) slightly,
> and flags a condition that I'm not sure about: If no address is supplied
> to its initialisation function, should it really return with no error,
> despite the fact that it hasn't done anything useful?
> 
> Cheers, Chris.
> -- 
> _ ___ __     _
>  / __/ / ,__(_)_  | Chris Wilson <0000 at qwirx.com> - Cambs UK |
> / (_/ ,\/ _/ /_ \ | Security/C/C++/Java/Perl/SQL/HTML Developer |
> \ _/_/_/_//_/___/ | We are GNU-free your mind-and your software |
> 
> 
> diff -ru8 linux-2.5.47/drivers/parisc/eisa_eeprom.c linux-2.5.47-chris/drivers/parisc/eisa_eeprom.c
> --- linux-2.5.47/drivers/parisc/eisa_eeprom.c	Mon Nov 11 03:28:29 2002
> +++ linux-2.5.47-chris/drivers/parisc/eisa_eeprom.c	Sun Nov 17 15:42:30 2002
> @@ -91,17 +91,27 @@
>  {
>  	EISA_EEPROM_MINOR,
>  	"eisa eeprom",
>  	&eisa_eeprom_fops
>  };
>  
>  int __init eisa_eeprom_init(unsigned long addr)
>  {
> -	if (addr) {
> -		eeprom_addr = addr;
> -		misc_register(&eisa_eeprom_dev);
> -		printk(KERN_INFO "EISA EEPROM at 0x%lx\n", eeprom_addr);
> +	int retval;
> +
> +	/* XXX why return success when we haven't done anything? */
> +	if (!addr)
> +		return 0;
> +
> +	eeprom_addr = addr;
> +
> +	retval = misc_register(&eisa_eeprom_dev);
> +	if (retval < 0) {
> +		printk(KERN_ERR "EISA EEPROM: cannot register misc device.\n");
> +		return retval;
>  	}
> +
> +	printk(KERN_INFO "EISA EEPROM at 0x%lx\n", eeprom_addr);
>  	return 0;
>  }
>  
>  MODULE_LICENSE("GPL");
> 
> 
> ----- End forwarded message -----
> 
> -- 
> Revolutions do not require corporate support.
> 
-- 



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> testing double (without inline functions)
> Failure: Real part of: cacos (inf + NaN i) == NaN + inf i plus sign of zero/inf not specified: Exception "Invalid operation" set

It occurred to me these might be a gcc problem on PA1 machines.  These
machines don't have fneg and negation is currently implemented as the
product with -1.  This may cause invalid operation to be set if the
value is a signaling NaN.

A better way to do the negation is to toggle the sign bit but this is
inefficient as the value needs to be copied from a FPR to a GPR and
back again.

A quick check would be to run the tests with "-mpa-risc-2-0" and see
if this makes any difference.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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>
>On Wed, Nov 13, 2002 at 07:02:31PM +0100, jsoe0708@tiscali.be wrote:
>> 
...
>
>figure it out yourself.
>
Excuse me for delay but after a serious car accident I had to take care of
my wife and my mother :( 

[the big diff previous file was certainly due to the cvs update made to early
during the merge]

Well the diff file size is now less than 70kb. Some diff are useless but
any way I submit you this diff because I find some small interesting diff:
ppp_generic.c hp_psaux.c (changes into 2.4.19-pa24 doesn't not seems to be
integrated into 2.4.20-rc1 ?)
cpqfcSTstructs.c (the contrary of previous case)

Joel


-----------------------------------------------------
ADSL Advantage...L'activation et le 1er mois sont GRATUITS...http://adsl.tiscali.be



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Subject: Re: [parisc-linux] [2.5] next issues ...
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Xref: news.gmane.org gmane.linux.ports.parisc:16851

Hey Carlos,

>
>> > My impression from what Joel has said is that the problem is bad coding
>> > rather than an actual gcc problem.  However, up to now, nobody has been
>> > able to provide a precise analysis of what's going on.
>> 
>> or even duplicate the problem.. i've been building 2.4 and 2.5 kernels
>> with 3.2 for some time.... haven't seen the problems that have been
>> reported.
>> 
>
>32 or 64-bit kernels? All debian tools? Mix of debian and upstream?
>

For my part I only tested 32bits 2.4.19 with gcc-3.2 (and previously 3.1).
The same problem occured as well with a cross compiled (hppa->hppa) as native
compiled gcc (following toolchain-howto method).
Unfortunaltely the best I could back trace was that the last kernel function
call was (trivial) dump_stack

>My only run-in with the problem was with 32-bit kernels cross compiled
>from x86. Though lately I'm using a gcc-3.1 based XC and it builds functional
>64-bit kernels.
>
>This is definately becoming one of those HPPA urban legends. I shall add
>it to my TODO list and verify that I can build a 32/64-bit kernel
>natively and cross with all the latest upstream cvs bits.
>

(I did this test _some month ago_ but did not bring me the sol. But that
was some month ago.)

I do also test loopback device (127.0.0.1) but (shame on me) I forgot the
result :((
The goal of this test was to try to point out the location of the problem:
ethernet driver or IP?

Any other idea are well come,
Joel

 

-----------------------------------------------------
ADSL Advantage...L'activation et le 1er mois sont GRATUITS...http://adsl.tiscali.be




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> It occurred to me these might be a gcc problem on PA1 machines.  These
> machines don't have fneg and negation is currently implemented as the
> product with -1.  This may cause invalid operation to be set if the
> value is a signaling NaN.
> 
> A better way to do the negation is to toggle the sign bit but this is
> inefficient as the value needs to be copied from a FPR to a GPR and
> back again.
> 
> A quick check would be to run the tests with "-mpa-risc-2-0" and see
> if this makes any difference.
> 

Interesting. I shall add this to my list of checks todo once I get glibc
2.3.1 out the door. Everything is setup, I'm just running into some
package integration problems (e.g. failing to restart certain services
causes the dpkg -i to fail).

My todo includes:

- Follow our discussion on delayed exceptions and try a few
  implementations of trap barriers

- Examine if -1*NaN is causing failures in the fp glibc tests.

- Implement atomic_add, echange_and_add, and compare and swap, which are
  required in atomicity.h

- Make some progress implementing *context() calls in glibc (SAPDB needs
  them).

- Take a closer look at our setjump/longjmp impementation (there were
  some fears that it was mildly broken)

c.



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> - Implement atomic_add, echange_and_add, and compare and swap, which are
>   required in atomicity.h

I added an implementation of atomic_add and echange_and_add to libstdc++
recently.  You can probably copy most of it for glibc, although the libstdc++
implementation is for c++.  The main problem would be in initializing
the 16 byte lock structure.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > - Implement atomic_add, echange_and_add, and compare and swap, which are
> >   required in atomicity.h
> 
> I added an implementation of atomic_add and echange_and_add to libstdc++
> recently.  You can probably copy most of it for glibc, although the libstdc++
> implementation is for c++.  The main problem would be in initializing
> the 16 byte lock structure.
> 

We already have a 16-byte aligned lock structure in glibc for pthreads, 
and I plan to use the same construct in atomicity.h.

...
typedef struct {
       int lock;
} __attribute__((aligned (16))) __atomic_lock_t;
...
#define __LOCK_INIT = { 1 };
static __atomic_lock_t __hppa_lock = __LOCK_INIT;
...
Ref the above lock in my __asm statement and use ldcw and a loop to make
sure the C function stays atomic for those threads (similar
implementation to sparc and mips).

c.



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> We already have a 16-byte aligned lock structure in glibc for pthreads, 
> and I plan to use the same construct in atomicity.h.

You might consider whether a separate lock structure might be appropriate.
Otherwise, it might be possible for a deadlock to occur.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Sun, 17 Nov 2002, John David Anglin wrote:

> > that fast *waeehhh* someone missed that last zero at 715/100(0) 8-(
>
> Yes, full bootstrap and check is close to 24 hours on 100MHz machines.

*grmml* failed again in; this time in parse.o

running
../gcc/configure --enable-nls=no --with-gnu-ld \
	--enable-languages=c,c++,objc --disable-libgcj
now

failed too this night...

running

../gcc/configure -v --enable-languages=c,c++,f77,objc --prefix=/usr --infodir=/share/info \
        --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib \
        --enable-long-long --enable-nls --without-included-gettext --disable-checking \
        --enable-threads=posix --with-cpp-install-dir=bin --enable-objc-gc hppa-linux

now. really lokks better ... *grmml*


> > no bash, nowhere, never, not as dflt ! 2> /dev/null ;-))

meant:

bz@apollo:~> echo $SHELL
/usr/bin/tcsh

> What's /bin/sh?

a symlink ;-)  could be (a|k|z|...)sh too but is a bash at the moment...

*_will_* be a sh(1) some day but it's not yet stable and fully usable...

bz@apollo:~/sh> uname
Linux
bz@apollo:~/sh> ./sh -c 'echo BSD rulez \:-\)'
BSD rulez :-)

bz@apollo:~/sh> strings ./sh | egrep -E '(BSD|Berkeley)'
$FreeBSD: src/bin/sh/arith.y,v 1.13 2002/02/02 06:50:45 imp Exp $
$FreeBSD: src/bin/sh/arith_lex.l,v 1.17 2002/02/02 06:50:46 imp Exp $
$FreeBSD: src/usr.bin/printf/printf.c,v 1.26 2002/09/04 23:29:05 dwmalone Exp $
@(#)yaccpar     1.9 (Berkeley) 02/21/93
@(#)history.c   8.1 (Berkeley) 6/4/93
@(#)tokenizer.c 8.1 (Berkeley) 6/4/93

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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> *grmml* failed again in; this time in parse.o

If the failure was caused by a segmentation fault, restart the build with
"make bootstrap2" or "make bootstrap3" depending on the stage in which
it failed and see what happens.

> ../gcc/configure -v --enable-languages=c,c++,f77,objc --prefix=/usr --infodir=/share/info \

It is not a good idea to replace the default compiler used for building
the system and glibc.  These pretty much have to be kept in sync.  Set
--prefix to some other directory.  It is not a bad idea to keep each
version of gcc in its own directory.  If there is a bug in the installed
compiler, it makes it much easier to do a new build.

The Makefile's use /bin/sh and pretty much assume bash or ksh.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Thanks to the notes on the console causing a kernel crash I downloaded a
new iso and booted to the CD. Easy install, followed the prompts and it
was done. Now loading up apache, mysql and openssl. Should be in use as
my DB and app server in a few weeks at redone.vastute.com.
 
Regards,
 
Darren Wathen

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
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charset=3Dus-ascii">
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<META content=3D"MSHTML 6.00.2600.0" name=3DGENERATOR></HEAD>
<BODY>
<DIV><SPAN class=3D372225721-18112002><FONT face=3DArial size=3D2>Thanks =
to the notes=20
on the console causing a kernel crash I downloaded a new iso and booted =
to the=20
CD. Easy install, followed the prompts and it was done. Now loading up =
apache,=20
mysql and openssl. Should be in use as my DB and app server in a few =
weeks at=20
redone.vastute.com.</FONT></SPAN></DIV>
<DIV><SPAN class=3D372225721-18112002><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D372225721-18112002><FONT face=3DArial=20
size=3D2>Regards,</FONT></SPAN></DIV>
<DIV>&nbsp;</DIV>
<DIV align=3Dleft><FONT face=3DArial size=3D2><STRONG>Darren=20
Wathen</STRONG></FONT></DIV>
<DIV align=3Dleft>
<DIV align=3Dleft><FONT face=3DArial =
size=3D2></FONT></DIV></DIV></BODY></HTML>

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On Mon, 18 Nov 2002, John David Anglin wrote:

> > *grmml* failed again in; this time in parse.o
>
> If the failure was caused by a segmentation fault, restart the build with
> "make bootstrap2" or "make bootstrap3" depending on the stage in which
> it failed and see what happens.

rm -rf'ed the build due to almost no free disk space...

> > ../gcc/configure -v --enable-languages=c,c++,f77,objc --prefix=/usr --infodir=/share/info \
>
> It is not a good idea to replace the default compiler used for building
> the system and glibc.  These pretty much have to be kept in sync.  Set
> --prefix to some other directory.  It is not a bad idea to keep each

*merde* missed it.. copied options from 3.0.4debian /usr/bin/gcc -v

if it compiles it will be no prob to wait another day ;-))

updated my compile.sh ... thanks.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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> rm -rf'ed the build due to almost no free disk space...

Use "make bootstrap-lean" to conserve disk space.  This will delete
previous stages when they are no longer needed.

> *merde* missed it.. copied options from 3.0.4debian /usr/bin/gcc -v

You don't need all the options that they use.  Take a look at

http://gcc.gnu.org/ml/gcc-testresults/2002-11/msg00475.html

to the configure options that I use.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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libc-alpha,

I've reworked the hppa pthreads patch to be as low impact as possible :)
Though some things need to be done, namely, hppa needs the lock variable
to be 16-byte aligned. This alignment requirement means all sorts of ugly
things, from wrappers to avoid non-constant named initializers, to the use
of a struct for a lock variable.

Thanks for all your feedback.

My apologies for the slow return, school called :}

c.

Round 2 ...

 linuxthreads/descr.h                                          |    2 
 linuxthreads/pt-machine.c                                     |    4 
 linuxthreads/pthread.c                                        |   16 -
 linuxthreads/spinlock.c                                       |   24 -
 linuxthreads/spinlock.h                                       |   26 +
 linuxthreads/sysdeps/hppa/pspinlock.c                         |   24 -
 linuxthreads/sysdeps/hppa/pt-machine.h                        |   46 ++-
 linuxthreads/sysdeps/pthread/bits/libc-lock.h                 |    6 
 linuxthreads/sysdeps/pthread/bits/pthreadtypes.h              |    8 
 linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h     |   22 +
 linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h |  146 ++++++++++
 linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c       |  132 ++++-----
 sysdeps/hppa/dl-fptr.c                                        |   10 
 13 files changed, 336 insertions(+), 130 deletions(-)

---

2002-11-11  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* linuxthreads/descr.h: Change spinlock type to __atomic_lock_t.
	* linuxthreads/pt-machine.c: Change extern definition of testandset
	so it uses __atomic_lock_t instead of int.
	* linuxthreads/pthread.c:
	(__pthread_initialize_minimal): Replace the use of __LT_SPINLOCK_INIT
	with __LT_INITIALIZER_NOT_ZERO in cases where it is used to check 
	wether the initialization should occur or not.
	(__pthread_initialize_manager): Likewise.
	* linuxthreads/spinlock.h: Add default define for lock_held if it has 
	not already been defined. Create the __pthread_lock_define_initialized
	macro to wrap up the use of an alternate initializer. Change 
	__pthread_compare_and_swap to use __atomic_lock_t,
	(compare_and_swap): Change function definitions to use __atomic_lock_t
	(compare_and_swap_with_release_semantics): Likewise.
	(__pthread_compare_and_swap): Likewise.
	* linuxthreads/spinlock.c: Change definition of __pthread_acquire to 
	use __atomic_lock_t. Modify struct wait_node to use __atomic_lock_t 
	as lock. Wrap definition and init of wait_node_free_list_spinlock in 
	macro.
	(__pthread_release): Change function definition to use __atomic_lock_t
	(__pthread_alt_lock): Change instances of abandoned = 0 to
	abandoned = __LT_SPINLOCK_INIT.
	(__pthread_alt_timedlock): Likewise.
	(__pthread_alt_unlock): Use lock_held instead of just checking 
	abandoned == 0. Typo fix in comment from "canno6" to "cannot"
	(__pthread_compare_and_swap): Change function definition to use 
	__atomic_lock_t.
	(__pthread_acquire): Likewise.
	* linuxthreads/sysdeps/hppa/pspinlock.c: Define __ldcw macro for PA's
	single atomic operation.
	(__pthread_spin_lock): Modified to use __ldcw macro.
	(__pthread_spin_trylock): Likewise.
	* linuxthreads/sysdeps/hppa/pt-machine.h: Add sys/types.h to pull in
	__atomic_long_t definition. Remove extern testandset define. Add 
	defines for FLOATING_STACKS and ARACH_STACK_MAX_SIZE. Add lock_held
	macro.
	(__get_cr27): New.
	(__set_cr27): New.
	(__load_and_clear): New.
	(testandset): Modified to emulate testandset using __load_and_clear.
	* linuxthreads/sysdeps/pthread/bits/libc-lock.h: Replace the use of
	__LT_SPINLOCK_INIT with that of __LT_INITIALIZER_NOT_ZERO.
	* linuxthreads/sysdeps/pthread/bits/pthreadtypes.h:
	Define default __atomic_lock_t to be an int. Change struct
	_pthread_fastlock to reflect name change.
	* linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h:
	Change macro's to reflect that lock is actually struct.
	* linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h: New.
	* linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c: 
	Avoid unterminated string literals.
	* sysdeps/hppa/dl-fptr.c: Change global lock to use 
	__LT_SPINLOCK_ALT_INIT.
	(__hppa_make_fptr): Use __LT_SPINLOCK_INIT to clear locks.
	(_dl_unmap): Likewise.
	(_dl_lookup_address): Likewise, and clear bottom two bits of address
	to fix function pointer calculation, see make_ftpr for the reasoning.


--Y2illNFYgwJwqOHD
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=00-glibc23-hppa-pthreads

diff -urN glibc-2.3.1.orig/linuxthreads/descr.h glibc-2.3.1/linuxthreads/descr.h
--- glibc-2.3.1.orig/linuxthreads/descr.h	2002-10-09 05:10:55.000000000 -0400
+++ glibc-2.3.1/linuxthreads/descr.h	2002-11-03 16:57:02.000000000 -0500
@@ -61,7 +61,7 @@
 /* Atomic counter made possible by compare_and_swap */
 struct pthread_atomic {
   long p_count;
-  int p_spinlock;
+  __atomic_lock_t p_spinlock;
 };
 
 
diff -urN glibc-2.3.1.orig/linuxthreads/pt-machine.c glibc-2.3.1/linuxthreads/pt-machine.c
--- glibc-2.3.1.orig/linuxthreads/pt-machine.c	2002-08-26 18:39:45.000000000 -0400
+++ glibc-2.3.1/linuxthreads/pt-machine.c	2002-11-09 19:03:50.000000000 -0500
@@ -19,7 +19,9 @@
 
 #define PT_EI
 
-extern long int testandset (int *spinlock);
+#include <pthread.h>
+
+extern long int testandset (__atomic_lock_t *spinlock);
 extern int __compare_and_swap (long int *p, long int oldval, long int newval);
 
 #include <pt-machine.h>
diff -urN glibc-2.3.1.orig/linuxthreads/pthread.c glibc-2.3.1/linuxthreads/pthread.c
--- glibc-2.3.1.orig/linuxthreads/pthread.c	2002-10-11 06:53:15.000000000 -0400
+++ glibc-2.3.1/linuxthreads/pthread.c	2002-11-07 09:39:12.000000000 -0500
@@ -309,9 +309,9 @@
   pthread_descr self;
 
   /* First of all init __pthread_handles[0] and [1] if needed.  */
-# if __LT_SPINLOCK_INIT != 0
-  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
-  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
 # endif
 # ifndef SHARED
   /* Unlike in the dynamically linked case the dynamic linker has not
@@ -334,7 +334,7 @@
 # endif
   /* self->p_start_args need not be initialized, it's all zero.  */
   self->p_userstack = 1;
-# if __LT_SPINLOCK_INIT != 0
+# ifdef __LT_INITIALIZER_NOT_ZERO 
   self->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER;
 # endif
   self->p_alloca_cutoff = __MAX_ALLOCA_CUTOFF;
@@ -346,9 +346,9 @@
   __pthread_handles[0].h_descr = self;
 #else
   /* First of all init __pthread_handles[0] and [1].  */
-# if __LT_SPINLOCK_INIT != 0
-  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
-  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
 # endif
   __pthread_handles[0].h_descr = &__pthread_initial_thread;
   __pthread_handles[1].h_descr = &__pthread_manager_thread;
@@ -572,7 +572,7 @@
 # endif
   tcb->p_start_args = (struct pthread_start_args) PTHREAD_START_ARGS_INITIALIZER(__pthread_manager);
   tcb->p_nr = 1;
-# if __LT_SPINLOCK_INIT != 0
+# ifdef __LT_INITIALIZER_NOT_ZERO 
   self->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER;
 # endif
   tcb->p_alloca_cutoff = PTHREAD_STACK_MIN / 4;
diff -urN glibc-2.3.1.orig/linuxthreads/spinlock.c glibc-2.3.1/linuxthreads/spinlock.c
--- glibc-2.3.1.orig/linuxthreads/spinlock.c	2002-08-29 06:32:19.000000000 -0400
+++ glibc-2.3.1/linuxthreads/spinlock.c	2002-11-09 14:51:45.000000000 -0500
@@ -24,9 +24,9 @@
 #include "spinlock.h"
 #include "restart.h"
 
-static void __pthread_acquire(int * spinlock);
+static void __pthread_acquire(__atomic_lock_t * spinlock);
 
-static inline void __pthread_release(int * spinlock)
+static inline void __pthread_release(__atomic_lock_t * spinlock)
 {
   WRITE_MEMORY_BARRIER();
   *spinlock = __LT_SPINLOCK_INIT;
@@ -269,11 +269,11 @@
 struct wait_node {
   struct wait_node *next;	/* Next node in null terminated linked list */
   pthread_descr thr;		/* The thread waiting with this node */
-  int abandoned;		/* Atomic flag */
+  __atomic_lock_t abandoned;	/* Atomic flag */
 };
 
 static long wait_node_free_list;
-static int wait_node_free_list_spinlock;
+__pthread_lock_define_initialized(static, wait_node_free_list_spinlock);
 
 /* Allocate a new node from the head of the free list using an atomic
    operation, or else using malloc if that list is empty.  A fundamental
@@ -376,7 +376,7 @@
       if (self == NULL)
 	self = thread_self();
 
-      wait_node.abandoned = 0;
+      wait_node.abandoned = __LT_SPINLOCK_INIT;
       wait_node.next = (struct wait_node *) lock->__status;
       wait_node.thr = self;
       lock->__status = (long) &wait_node;
@@ -402,7 +402,7 @@
       wait_node.thr = self;
       newstatus = (long) &wait_node;
     }
-    wait_node.abandoned = 0;
+    wait_node.abandoned = __LT_SPINLOCK_INIT;
     wait_node.next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -451,7 +451,7 @@
       if (self == NULL)
 	self = thread_self();
 
-      p_wait_node->abandoned = 0;
+      p_wait_node->abandoned = __LT_SPINLOCK_INIT;
       p_wait_node->next = (struct wait_node *) lock->__status;
       p_wait_node->thr = self;
       lock->__status = (long) p_wait_node;
@@ -474,7 +474,7 @@
       p_wait_node->thr = self;
       newstatus = (long) p_wait_node;
     }
-    p_wait_node->abandoned = 0;
+    p_wait_node->abandoned = __LT_SPINLOCK_INIT;
     p_wait_node->next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -574,7 +574,7 @@
     while (p_node != (struct wait_node *) 1) {
       int prio;
 
-      if (p_node->abandoned) {
+      if (lock_held(&p_node->abandoned)) {
 	/* Remove abandoned node. */
 #if defined TEST_FOR_COMPARE_AND_SWAP
 	if (!__pthread_has_cas)
@@ -605,7 +605,7 @@
 	p_max_prio = p_node;
       }
 
-      /* This canno6 jump backward in the list, so no further read
+      /* This cannot jump backward in the list, so no further read
          barrier is needed. */
       pp_node = &p_node->next;
       p_node = *pp_node;
@@ -662,7 +662,7 @@
 #if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP
 
 int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                               int * spinlock)
+                               __atomic_lock_t * spinlock)
 {
   int res;
 
@@ -699,7 +699,7 @@
    - When nanosleep() returns, we try again, doing MAX_SPIN_COUNT
      sched_yield(), then sleeping again if needed. */
 
-static void __pthread_acquire(int * spinlock)
+static void __pthread_acquire(__atomic_lock_t * spinlock)	
 {
   int cnt = 0;
   struct timespec tm;
diff -urN glibc-2.3.1.orig/linuxthreads/spinlock.h glibc-2.3.1/linuxthreads/spinlock.h
--- glibc-2.3.1.orig/linuxthreads/spinlock.h	2001-05-24 19:36:35.000000000 -0400
+++ glibc-2.3.1/linuxthreads/spinlock.h	2002-11-10 13:33:43.000000000 -0500
@@ -33,14 +33,28 @@
 #endif
 #endif
 
+/* Define lock_held for all arches that don't need a modified copy. */
+#ifndef __LT_INITIALIZER_NOT_ZERO
+# define lock_held(p) *(p)
+#endif
+
+/* Initliazers for possibly complex structures */
+#ifdef __LT_INITIALIZER_NOT_ZERO
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME = __LT_SPINLOCK_ALT_INIT
+#else
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME
+#endif
+
 #if defined(TEST_FOR_COMPARE_AND_SWAP)
 
 extern int __pthread_has_cas;
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   if (__builtin_expect (__pthread_has_cas, 1))
     return __compare_and_swap(ptr, oldval, newval);
@@ -58,7 +72,7 @@
 
 static inline int
 compare_and_swap_with_release_semantics (long * ptr, long oldval,
-					 long newval, int * spinlock)
+					 long newval, __atomic_lock_t * spinlock)
 {
   return __compare_and_swap_with_release_semantics (ptr, oldval,
 						    newval);
@@ -67,7 +81,7 @@
 #endif
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __compare_and_swap(ptr, oldval, newval);
 }
@@ -75,10 +89,10 @@
 #else
 
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __pthread_compare_and_swap(ptr, oldval, newval, spinlock);
 }
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pspinlock.c glibc-2.3.1/linuxthreads/sysdeps/hppa/pspinlock.c
--- glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pspinlock.c	2002-08-26 18:39:51.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/hppa/pspinlock.c	2002-11-03 16:57:02.000000000 -0500
@@ -21,18 +21,20 @@
 #include <pthread.h>
 #include "internals.h"
 
+/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
+#define __ldcw(a) ({ \
+	unsigned __ret; \
+	__asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a)); \
+	__ret; \
+})
+
 int
 __pthread_spin_lock (pthread_spinlock_t *lock)
 {
-  unsigned int val;
-
-  do
-    asm volatile ("ldcw %1,%0"
-		  : "=r" (val), "=m" (*lock)
-		  : "m" (*lock));
-  while (!val);
+	while (__ldcw (*lock) == 0)
+		while (*lock == 0) ;
 
-  return 0;
+	return 0;
 }
 weak_alias (__pthread_spin_lock, pthread_spin_lock)
 
@@ -40,11 +42,7 @@
 int
 __pthread_spin_trylock (pthread_spinlock_t *lock)
 {
-  unsigned int val;
-
-  asm volatile ("ldcw %1,%0"
-		: "=r" (val), "=m" (*lock)
-		: "m" (*lock));
+  unsigned int val = __ldcw(*lock);
 
   return val ? 0 : EBUSY;
 }
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pt-machine.h glibc-2.3.1/linuxthreads/sysdeps/hppa/pt-machine.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pt-machine.h	2002-08-26 18:39:51.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/hppa/pt-machine.h	2002-11-11 13:45:29.000000000 -0500
@@ -22,13 +22,13 @@
 #ifndef _PT_MACHINE_H
 #define _PT_MACHINE_H   1
 
+#include <sys/types.h>
 #include <bits/initspin.h>
 
 #ifndef PT_EI
 # define PT_EI extern inline
 #endif
 
-extern long int testandset (int *spinlock);
 extern int __compare_and_swap (long int *p, long int oldval, long int newval);
 
 /* Get some notion of the current stack.  Need not be exactly the top
@@ -36,16 +36,39 @@
 #define CURRENT_STACK_FRAME  stack_pointer
 register char * stack_pointer __asm__ ("%r30");
 
+/* Get/Set thread-specific pointer.  We have to call into the kernel to
+ * modify it, but we can read it in user mode.  */
+
+#define THREAD_SELF __get_cr27()
+
+static inline struct _pthread_descr_struct * __get_cr27(void)
+{
+	long cr27;
+	asm("mfctl %%cr27, %0" : "=r" (cr27) : );
+	return (struct _pthread_descr_struct *) cr27;
+}
+
+#define INIT_THREAD_SELF(descr, nr) __set_cr27(descr)
+
+static inline void __set_cr27(struct _pthread_descr_struct * cr27)
+{
+	asm(
+		"ble	0xe0(%%sr2, %%r0)\n\t"
+		"copy	%0, %%r26"
+	 : : "r" (cr27) : "r26" );
+}
+
+/* We want the OS to assign stack addresses.  */
+#define FLOATING_STACKS	1
+#define ARCH_STACK_MAX_SIZE	8*1024*1024
 
 /* The hppa only has one atomic read and modify memory operation,
    load and clear, so hppa spinlocks must use zero to signify that
    someone is holding the lock.  */
 
-#define xstr(s) str(s)
-#define str(s) #s
 /* Spinlock implementation; required.  */
-PT_EI long int
-testandset (int *spinlock)
+PT_EI int
+__load_and_clear(__atomic_lock_t *spinlock)
 {
   int ret;
 
@@ -54,9 +77,16 @@
        : "=r"(ret), "=m"(*spinlock)
        : "r"(spinlock));
 
-  return ret == 0;
+  return ret;
+}
+
+/* Emulate testandset */
+PT_EI long int
+testandset(__atomic_lock_t *spinlock)
+{
+	return (__load_and_clear(spinlock) == 0);
 }
-#undef str
-#undef xstr
 
+#define lock_held(spinlock) ((spinlock)->lock==0)
+		
 #endif /* pt-machine.h */
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/libc-lock.h glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/libc-lock.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/libc-lock.h	2002-10-11 06:53:17.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/libc-lock.h	2002-11-06 21:44:40.000000000 -0500
@@ -64,12 +64,12 @@
    initialized locks must be set to one due to the lack of normal
    atomic operations.) */
 
-#if __LT_SPINLOCK_INIT == 0
+#ifdef __LT_INITIALIZER_NOT_ZERO
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME;
+  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
 #else
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
+  CLASS __libc_lock_t NAME;
 #endif
 
 #define __libc_rwlock_define_initialized(CLASS,NAME) \
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	2001-01-27 01:26:13.000000000 -0500
+++ glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	2002-11-03 16:57:02.000000000 -0500
@@ -22,12 +22,14 @@
 #define __need_schedparam
 #include <bits/sched.h>
 
+typedef int __atomic_lock_t;
+
 /* Fast locks (not abstract because mutexes and conditions aren't abstract). */
 struct _pthread_fastlock
 {
-  long int __status;   /* "Free" or "taken" or head of waiting list */
-  int __spinlock;      /* Used by compare_and_swap emulation. Also,
-			  adaptive SMP lock stores spin count here. */
+  long int __status;		/* "Free" or "taken" or head of waiting list */
+  __atomic_lock_t __spinlock;	/* Used by compare_and_swap emulation. Also,
+				   adaptive SMP lock stores spin count here. */
 };
 
 #ifndef _PTHREAD_DESCR_DEFINED
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h	2002-08-26 18:39:55.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h	2002-11-09 12:47:16.000000000 -0500
@@ -19,9 +19,21 @@
 
 /* Initial value of a spinlock.  PA-RISC only implements atomic load
    and clear so this must be non-zero. */
-#define __LT_SPINLOCK_INIT 1
+#define __LT_SPINLOCK_INIT ((__atomic_lock_t){ 1 })
+
+/* Initillize global spinlocks without cast, generally macro wrapped */
+#define __LT_SPINLOCK_ALT_INIT { 1 }
+
+/* Macros for lock initializers, not using the above definition.
+   The above definition is not used in the case that static initializers
+   use this value. */
+#define __LOCK_INITIALIZER { { 1 }, 0 }
+#define __ATOMIC_INITIALIZER { 0, { 1 } }
+
+/* Used to initialize _pthread_fastlock's in non-static case */
+#define __LOCK_ALT_INITIALIZER ((struct _pthread_fastlock){ __LT_SPINLOCK_INIT, 0 })
+
+/* Tell the rest of the code that the initializer is non-zero without
+   explaining it's internal structure */
+#define __LT_INITIALIZER_NOT_ZERO
 
-/* Macros for lock initializers, using the above definition. */
-#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
-#define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
-#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT }
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h	1969-12-31 19:00:00.000000000 -0500
+++ glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h	2002-11-03 16:57:02.000000000 -0500
@@ -0,0 +1,146 @@
+/* Linuxthreads - a simple clone()-based implementation of Posix        */
+/* threads for Linux.                                                   */
+/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr)              */
+/*                                                                      */
+/* This program is free software; you can redistribute it and/or        */
+/* modify it under the terms of the GNU Library General Public License  */
+/* as published by the Free Software Foundation; either version 2       */
+/* of the License, or (at your option) any later version.               */
+/*                                                                      */
+/* This program is distributed in the hope that it will be useful,      */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of       */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        */
+/* GNU Library General Public License for more details.                 */
+
+#if !defined _BITS_TYPES_H && !defined _PTHREAD_H
+# error "Never include <bits/pthreadtypes.h> directly; use <sys/types.h> instead."
+#endif
+
+#ifndef _BITS_PTHREADTYPES_H
+#define _BITS_PTHREADTYPES_H	1
+
+#define __need_schedparam
+#include <bits/sched.h>
+
+typedef struct {
+	int lock;
+} __attribute__((aligned (16))) __atomic_lock_t;
+
+/* Fast locks (not abstract because mutexes and conditions aren't abstract). */
+struct _pthread_fastlock
+{
+  __atomic_lock_t __spinlock;  /* Used by compare_and_swap emulation. Also,
+				   adaptive SMP lock stores spin count here. */
+  long int __status;   /* "Free" or "taken" or head of waiting list */
+};
+
+#ifndef _PTHREAD_DESCR_DEFINED
+/* Thread descriptors */
+typedef struct _pthread_descr_struct *_pthread_descr;
+# define _PTHREAD_DESCR_DEFINED
+#endif
+
+
+/* Attributes for threads.  */
+typedef struct __pthread_attr_s
+{
+  int __detachstate;
+  int __schedpolicy;
+  struct __sched_param __schedparam;
+  int __inheritsched;
+  int __scope;
+  size_t __guardsize;
+  int __stackaddr_set;
+  void *__stackaddr;
+  size_t __stacksize;
+} pthread_attr_t;
+
+
+/* Conditions (not abstract because of PTHREAD_COND_INITIALIZER */
+typedef struct
+{
+  struct _pthread_fastlock __c_lock; /* Protect against concurrent access */
+  _pthread_descr __c_waiting;        /* Threads waiting on this condition */
+} pthread_cond_t;
+
+
+/* Attribute for conditionally variables.  */
+typedef struct
+{
+  int __dummy;
+} pthread_condattr_t;
+
+/* Keys for thread-specific data */
+typedef unsigned int pthread_key_t;
+
+
+/* Mutexes (not abstract because of PTHREAD_MUTEX_INITIALIZER).  */
+/* (The layout is unnatural to maintain binary compatibility
+    with earlier releases of LinuxThreads.) */
+typedef struct
+{
+  int __m_reserved;               /* Reserved for future use */
+  int __m_count;                  /* Depth of recursive locking */
+  _pthread_descr __m_owner;       /* Owner thread (if recursive or errcheck) */
+  int __m_kind;                   /* Mutex kind: fast, recursive or errcheck */
+  struct _pthread_fastlock __m_lock; /* Underlying fast lock */
+} pthread_mutex_t;
+
+
+/* Attribute for mutex.  */
+typedef struct
+{
+  int __mutexkind;
+} pthread_mutexattr_t;
+
+
+/* Once-only execution */
+typedef int pthread_once_t;
+
+
+#ifdef __USE_UNIX98
+/* Read-write locks.  */
+typedef struct _pthread_rwlock_t
+{
+  struct _pthread_fastlock __rw_lock; /* Lock to guarantee mutual exclusion */
+  int __rw_readers;                   /* Number of readers */
+  _pthread_descr __rw_writer;         /* Identity of writer, or NULL if none */
+  _pthread_descr __rw_read_waiting;   /* Threads waiting for reading */
+  _pthread_descr __rw_write_waiting;  /* Threads waiting for writing */
+  int __rw_kind;                      /* Reader/Writer preference selection */
+  int __rw_pshared;                   /* Shared between processes or not */
+} pthread_rwlock_t;
+
+
+/* Attribute for read-write locks.  */
+typedef struct
+{
+  int __lockkind;
+  int __pshared;
+} pthread_rwlockattr_t;
+#endif
+
+#ifdef __USE_XOPEN2K
+/* POSIX spinlock data type.  */
+typedef volatile int pthread_spinlock_t __attribute__((aligned (16)));
+
+/* POSIX barrier. */
+typedef struct {
+  struct _pthread_fastlock __ba_lock; /* Lock to guarantee mutual exclusion */
+  int __ba_required;                  /* Threads needed for completion */
+  int __ba_present;                   /* Threads waiting */
+  _pthread_descr __ba_waiting;        /* Queue of waiting threads */
+} pthread_barrier_t;
+
+/* barrier attribute */
+typedef struct {
+  int __pshared;
+} pthread_barrierattr_t;
+
+#endif
+
+
+/* Thread identifiers */
+typedef unsigned long int pthread_t;
+
+#endif	/* bits/pthreadtypes.h */
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c
--- glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c	2002-08-26 18:39:29.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c	2002-11-11 13:36:31.000000000 -0500
@@ -41,70 +41,70 @@
    and epilogues.  Therefore we write these in assembly to make sure
    they do the right thing.  */
 
-__asm__ ("
-
-#include \"defs.h\"
-
-/*@HEADER_ENDS*/
-
-/*@_init_PROLOG_BEGINS*/
-	.section .init
-	.align 4
-	.globl _init
-	.type _init,@function
-_init:
-	stw	%rp,-20(%sp)
-	stwm	%r4,64(%sp)
-	stw	%r19,-32(%sp)
-	bl	__pthread_initialize_minimal,%rp
-	copy	%r19,%r4	/* delay slot */
-	copy	%r4,%r19
-/*@_init_PROLOG_ENDS*/
-
-/*@_init_EPILOG_BEGINS*/
-/* Here is the tail end of _init.  */
-	.section .init
-	ldw	-84(%sp),%rp
-	copy	%r4,%r19
-	bv	%r0(%rp)
-_end_init:
-	ldwm	-64(%sp),%r4
-
-/* Our very own unwind info, because the assembler can't handle
-   functions split into two or more pieces.  */
-	.section .PARISC.unwind,\"a\",@progbits
-	.extern _init
-	.word	_init, _end_init
-	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
-
-/*@_init_EPILOG_ENDS*/
-
-/*@_fini_PROLOG_BEGINS*/
-	.section .fini
-	.align 4
-	.globl _fini
-	.type _fini,@function
-_fini:
-	stw	%rp,-20(%sp)
-	stwm	%r4,64(%sp)
-	stw	%r19,-32(%sp)
-	copy	%r19,%r4
-/*@_fini_PROLOG_ENDS*/
-
-/*@_fini_EPILOG_BEGINS*/
-	.section .fini
-	ldw	-84(%sp),%rp
-	copy	%r4,%r19
-	bv	%r0(%rp)
-_end_fini:
-	ldwm	-64(%sp),%r4
-
-	.section .PARISC.unwind,\"a\",@progbits
-	.extern _fini
-	.word	_fini, _end_fini
-	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
-
-/*@_fini_EPILOG_ENDS*/
-
-/*@TRAILER_BEGINS*/
+__asm__ ("								\n\
+									\n\
+#include \"defs.h\"							\n\
+									\n\
+/*@HEADER_ENDS*/							\n\
+									\n\
+/*@_init_PROLOG_BEGINS*/						\n\
+	.section .init							\n\
+	.align 4							\n\
+	.globl _init							\n\
+	.type _init,@function						\n\
+_init:									\n\
+	stw	%rp,-20(%sp)						\n\
+	stwm	%r4,64(%sp)						\n\
+	stw	%r19,-32(%sp)						\n\
+	bl	__pthread_initialize_minimal,%rp			\n\
+	copy	%r19,%r4	/* delay slot */			\n\
+	copy	%r4,%r19						\n\
+/*@_init_PROLOG_ENDS*/							\n\
+									\n\
+/*@_init_EPILOG_BEGINS*/						\n\
+/* Here is the tail end of _init.  */					\n\
+	.section .init							\n\
+	ldw	-84(%sp),%rp						\n\
+	copy	%r4,%r19						\n\
+	bv	%r0(%rp)						\n\
+_end_init:								\n\
+	ldwm	-64(%sp),%r4						\n\
+									\n\
+/* Our very own unwind info, because the assembler can't handle		\n\
+   functions split into two or more pieces.  */				\n\
+	.section .PARISC.unwind,\"a\",@progbits				\n\
+	.extern _init							\n\
+	.word	_init, _end_init					\n\
+	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08		\n\
+									\n\
+/*@_init_EPILOG_ENDS*/							\n\
+									\n\
+/*@_fini_PROLOG_BEGINS*/						\n\
+	.section .fini							\n\
+	.align 4							\n\
+	.globl _fini							\n\
+	.type _fini,@function						\n\
+_fini:									\n\
+	stw	%rp,-20(%sp)						\n\
+	stwm	%r4,64(%sp)						\n\
+	stw	%r19,-32(%sp)						\n\
+	copy	%r19,%r4						\n\
+/*@_fini_PROLOG_ENDS*/							\n\
+									\n\
+/*@_fini_EPILOG_BEGINS*/						\n\
+	.section .fini							\n\
+	ldw	-84(%sp),%rp						\n\
+	copy	%r4,%r19						\n\
+	bv	%r0(%rp)						\n\
+_end_fini:								\n\
+	ldwm	-64(%sp),%r4						\n\
+									\n\
+	.section .PARISC.unwind,\"a\",@progbits				\n\
+	.extern _fini							\n\
+	.word	_fini, _end_fini					\n\
+	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08		\n\
+									\n\
+/*@_fini_EPILOG_ENDS*/							\n\
+									\n\
+/*@TRAILER_BEGINS*/							\n\
 ");
diff -urN glibc-2.3.1.orig/sysdeps/hppa/dl-fptr.c glibc-2.3.1/sysdeps/hppa/dl-fptr.c
--- glibc-2.3.1.orig/sysdeps/hppa/dl-fptr.c	2002-01-31 20:31:51.000000000 -0500
+++ glibc-2.3.1/sysdeps/hppa/dl-fptr.c	2002-11-11 13:39:11.000000000 -0500
@@ -30,7 +30,7 @@
 # include <pt-machine.h>
 
 /* Remember, we use 0 to mean that a lock is taken on PA-RISC. */
-static int __hppa_fptr_lock = 1;
+static __atomic_lock_t __hppa_fptr_lock = __LT_SPINLOCK_ALT_INIT;
 #endif
 
 /* Because ld.so is now versioned, these functions can be in their own
@@ -127,7 +127,7 @@
 #ifdef _LIBC_REENTRANT
   /* Release the lock.  Again, remember, zero means the lock is taken!  */
   if (mem == NULL)
-    __hppa_fptr_lock = 1;
+    __hppa_fptr_lock = __LT_SPINLOCK_INIT;
 #endif
 
   /* Set bit 30 to indicate to $$dyncall that this is a PLABEL. */
@@ -180,7 +180,7 @@
 
 #ifdef _LIBC_REENTRANT
   /* Release the lock. */
-  __hppa_fptr_lock = 1;
+  __hppa_fptr_lock = __LT_SPINLOCK_INIT;
 #endif
 }
 
@@ -190,6 +190,8 @@
   Elf32_Addr addr = (Elf32_Addr) address;
   struct hppa_fptr *f;
 
+  address = (void *)((unsigned long)address &~ 3); /* Clear the bottom two bits.  See make_fptr. */
+  
 #ifdef _LIBC_REENTRANT
   /* Make sure we are alone.  */
   while (testandset (&__hppa_fptr_lock));
@@ -204,7 +206,7 @@
 
 #ifdef _LIBC_REENTRANT
   /* Release the lock.   */
-  __hppa_fptr_lock = 1;
+  __hppa_fptr_lock = __LT_SPINLOCK_INIT;
 #endif
 
   return addr;

--Y2illNFYgwJwqOHD--


From - Thu Nov 08 21:25:35 2018
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [PATCH] Fixup dl-machine for HPPA
Date: Tue, 19 Nov 2002 01:06:42 -0500
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--l5oECiFRo5dp+2y7
Content-Type: text/plain; charset=us-ascii
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libc-alpha,

The following fixes dl-machine.h for hppa.

These fixes have been in debian-glibc for a long time
and have received heavy testing.

Cheers,
Carlos.

Round 2...

 sysdeps/hppa/dl-machine.h |  193 +++++++++++++++++++++++++++++------------------------------
 1 files changed, 97 insertions(+), 96 deletions(-)

--

2000-07-31  David Huggins-Daines  <dhd@debian.org>

	* sysdeps/hppa/dl-machine.h:
	Cleanup assembly, define VALID_ELF_*,
	(elf_machine_dynamic): Cleanup assembly.
	(elf_machine_load_address): Likewise.
	(elf_machine_runtime_setup): Fix relocations.
	(set_dp): Cleanup assembly.
	(elf_machine_rela): Likewise.


--l5oECiFRo5dp+2y7
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=01-glibc23-hppa-dl-machine

diff -urN libc/sysdeps/hppa/dl-machine.h libc/sysdeps/hppa/dl-machine.h
--- libc/sysdeps/hppa/dl-machine.h	Wed Nov 14 09:47:09 2001
+++ libc/sysdeps/hppa/dl-machine.h	Wed Nov 14 09:46:02 2001
@@ -28,8 +28,15 @@
 #include <link.h>
 #include <assert.h>
 
+# define VALID_ELF_OSABI(osabi)		((osabi == ELFOSABI_SYSV) || (osabi == ELFOSABI_LINUX))
+# define VALID_ELF_ABIVERSION(ver)	(ver == 0)
+# define VALID_ELF_HEADER(hdr,exp,size) \
+  memcmp (hdr,exp,size-2) == 0 \
+  && VALID_ELF_OSABI (hdr[EI_OSABI]) \
+  && VALID_ELF_ABIVERSION (hdr[EI_ABIVERSION])
+
 /* These must match the definition of the stub in bfd/elf32-hppa.c. */
-#define SIZEOF_PLT_STUB (4*4)
+#define SIZEOF_PLT_STUB (7*4)
 #define GOT_FROM_PLT_STUB (4*4)
 
 /* A PLABEL is a function descriptor.  Properly they consist of just
@@ -66,45 +73,41 @@
   return ehdr->e_machine == EM_PARISC;
 }
 
-
 /* Return the link-time address of _DYNAMIC.  */
 static inline Elf32_Addr
+elf_machine_dynamic (void) __attribute__ ((const));
+
+static inline Elf32_Addr
 elf_machine_dynamic (void)
 {
   Elf32_Addr dynamic;
 
-#if 0
-  /* Use this method if GOT address not yet set up.  */
-  asm (
-"	b,l	1f,%0\n"
+  asm ("b,l	1f,%0\n"
 "	depi	0,31,2,%0\n"
 "1:	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 8),%0\n"
 "	ldw	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 12)(%%r1),%0\n"
-      : "=r" (dynamic) : : "r1");
-#else
-  /* This works because we already have our GOT address available.  */
-  dynamic = (Elf32_Addr) &_DYNAMIC;
-#endif
+       : "=r" (dynamic) : : "r1");
 
   return dynamic;
 }
 
 /* Return the run-time load address of the shared object.  */
 static inline Elf32_Addr
+elf_machine_load_address (void) __attribute__ ((const));
+
+static inline Elf32_Addr
 elf_machine_load_address (void)
 {
-  Elf32_Addr dynamic, dynamic_linkaddress;
+  Elf32_Addr dynamic;
 
   asm (
 "	b,l	1f,%0\n"
 "	depi	0,31,2,%0\n"
 "1:	addil	L'_DYNAMIC - ($PIC_pcrel$0 - 8),%0\n"
-"	ldo	R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%%r1),%1\n"
-"	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 16),%0\n"
-"	ldw	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 20)(%%r1),%0\n"
-   : "=r" (dynamic_linkaddress), "=r" (dynamic) : : "r1");
+"	ldo	R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%%r1),%0\n"
+   : "=r" (dynamic) : : "r1");
 
-  return dynamic - dynamic_linkaddress;
+  return dynamic - elf_machine_dynamic ();
 }
 
 /* Fixup a PLT entry to bounce directly to the function at VALUE.  */
@@ -167,41 +170,39 @@
 	      fptr = (struct hppa_fptr *) (reloc->r_offset + l_addr);
 	      if (r_sym != 0)
 		{
-		  /* Relocate the pointer to the stub.  */
-		  fptr->func += l_addr;
-		  /* Instead of the LTP value, we put the reloc offset
-		     here.  The trampoline code will load the proper
-		     LTP and pass the reloc offset to the fixup
-		     function.  */
-		  fptr->gp = iplt - jmprel;
 		  if (!got)
 		    {
 		      static union {
 			unsigned char c[8];
 			Elf32_Addr i[2];
 		      } sig = {{0x00,0xc0,0xff,0xee, 0xde,0xad,0xbe,0xef}};
+		      const Elf32_Rela *last_rel;
+
+		      last_rel = (const Elf32_Rela *) end_jmprel - 1;
+
+		      /* The stub is immediately after the last .plt
+			 entry.  Rely on .plt relocs being ordered.  */
+		      if (last_rel->r_offset == 0)
+			return 0;
 
 		      /* Find our .got section.  It's right after the
 			 stub.  */
-		      got = (Elf32_Addr *) (fptr->func + GOT_FROM_PLT_STUB);
+		      got = (Elf32_Addr *) (last_rel->r_offset + l_addr
+					    + 8 + SIZEOF_PLT_STUB);
 
-		      /* Sanity check to see if the address we are
-                         going to check below is within a reasonable
-                         approximation of the bounds of the PLT (or,
-                         at least, is at an address that won't fault
-                         on read).  Then check for the magic signature
-                         above. */
-		      if (fptr->func < (Elf32_Addr) fptr + sizeof(*fptr))
-			  return 0;
-		      if (fptr->func >
-			  ((Elf32_Addr) fptr
-			   + SIZEOF_PLT_STUB
-			   + ((l->l_info[DT_PLTRELSZ]->d_un.d_val / sizeof (Elf32_Rela))
-			      * 8)))
-			return 0;
+		      /* Check the magic signature.  */
 		      if (got[-2] != sig.i[0] || got[-1] != sig.i[1])
 			return 0; /* No lazy linking for you! */
 		    }
+
+		  /* Relocate the pointer to the stub.  */
+		  fptr->func = (Elf32_Addr) got - GOT_FROM_PLT_STUB;
+
+		  /* Instead of the LTP value, we put the reloc offset
+		     here.  The trampoline code will load the proper
+		     LTP and pass the reloc offset to the fixup
+		     function.  */
+		  fptr->gp = iplt - jmprel;
 		}
 	      else
 		{
@@ -271,22 +272,24 @@
 "	stw	%r25,-40(%sp)\n" /* argc */				\
 "	stw	%r24,-44(%sp)\n" /* argv */				\
 									\
-	/* We need the LTP, and we need it now. */			\
-	/* $PIC_pcrel$0 points 8 bytes past the current instruction,	\
-	   just like a branch reloc.  This sequence gets us the runtime	\
-	   address of _DYNAMIC. */					\
+	/* We need the LTP, and we need it now.				\
+	   $PIC_pcrel$0 points 8 bytes past the current instruction,	\
+	   just like a branch reloc.  This sequence gets us the		\
+	   runtime address of _DYNAMIC. */				\
 "	bl	0f,%r19\n"						\
 "	depi	0,31,2,%r19\n"	/* clear priviledge bits */		\
 "0:	addil	L'_DYNAMIC - ($PIC_pcrel$0 - 8),%r19\n"			\
 "	ldo	R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%r1),%r26\n"		\
 									\
-	/* Also get the link time address from the first entry of the GOT.  */ \
+	/* The link time address is stored in the first entry of the	\
+	   GOT.  */							\
 "	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 16),%r19\n"	\
 "	ldw	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 20)(%r1),%r20\n" \
 									\
 "	sub	%r26,%r20,%r20\n"	/* Calculate load offset */	\
 									\
-	/* Rummage through the dynamic entries, looking for DT_PLTGOT.  */ \
+	/* Rummage through the dynamic entries, looking for		\
+	   DT_PLTGOT.  */						\
 "	ldw,ma	8(%r26),%r19\n"						\
 "1:	cmpib,=,n 3,%r19,2f\n"	/* tag == DT_PLTGOT? */			\
 "	cmpib,<>,n 0,%r19,1b\n"						\
@@ -306,8 +309,8 @@
 	   |         32 bytes of magic       |				\
 	   |---------------------------------|				\
 	   | 32 bytes argument/sp save area  |				\
-	   |---------------------------------|  ((current->mm->env_end) + 63 & ~63) \
-	   |         N bytes of slack        |				\
+	   |---------------------------------|  ((current->mm->env_end)	\
+	   |         N bytes of slack        |	 + 63 & ~63)		\
 	   |---------------------------------|				\
 	   |      envvar and arg strings     |				\
 	   |---------------------------------|				\
@@ -375,7 +378,7 @@
 "	bl	_dl_init,%r2\n"						\
 "	ldo	4(%r23),%r23\n"	/* delay slot */			\
 									\
-	/* Reload argc, argv  to the registers start.S expects them in (feh) */ \
+	/* Reload argc, argv to the registers start.S expects.  */	\
 "	ldw	-40(%sp),%r25\n"					\
 "	ldw	-44(%sp),%r24\n"					\
 									\
@@ -387,8 +390,8 @@
 "	.word	0xdeadbeef\n"						\
 "	.previous\n"							\
 									\
-	/* %r3 contains a function pointer, we need to mask out the lower \
-	 * bits and load the gp and jump address. */			\
+	/* %r3 contains a function pointer, we need to mask out the	\
+	   lower bits and load the gp and jump address. */		\
 "	depi	0,31,2,%r3\n"						\
 "	ldw	0(%r3),%r2\n"						\
 "	addil	LT'__dl_fini_plabel,%r19\n"				\
@@ -409,43 +409,41 @@
    Enter with r19 = reloc offset, r20 = got-8, r21 = fixup ltp.  */
 #define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name) \
   extern void tramp_name (void);		    \
-  asm ( "\
-	/* Trampoline for " #tramp_name " */				    \n\
-	.globl " #tramp_name "						    \n\
-	.type " #tramp_name ",@function					    \n\
-" #tramp_name ":							    \n\
-	/* Save return pointer */					    \n\
-	stw	%r2,-20(%sp)						    \n\
-	/* Save argument registers in the call stack frame. */		    \n\
-	stw	%r26,-36(%sp)						    \n\
-	stw	%r25,-40(%sp)						    \n\
-	stw	%r24,-44(%sp)						    \n\
-	stw	%r23,-48(%sp)						    \n\
-	/* Build a call frame. */					    \n\
-	stwm	%sp,64(%sp)						    \n\
-									    \n\
-	/* Set up args to fixup func.  */				    \n\
-	ldw	8+4(%r20),%r26	/* got[1] == struct link_map *  */	    \n\
-	copy	%r19,%r25	/* reloc offset  */			    \n\
-									    \n\
-	/* Call the real address resolver. */				    \n\
-	bl	" #fixup_name ",%r2					    \n\
-	copy	%r21,%r19	/* delay slot, set fixup func ltp */	    \n\
-									    \n\
-	ldwm	-64(%sp),%sp						    \n\
-	/* Arguments. */						    \n\
-	ldw	-36(%sp),%r26						    \n\
-	ldw	-40(%sp),%r25						    \n\
-	ldw	-44(%sp),%r24						    \n\
-	ldw	-48(%sp),%r23						    \n\
-	/* Return pointer. */						    \n\
-	ldw	-20(%sp),%r2						    \n\
-	/* Call the real function. */					    \n\
-	ldw	0(%r28),%r22						    \n\
-	bv	%r0(%r22)						    \n\
-	ldw	4(%r28),%r19						    \n\
-");
-
+  asm (".globl " #tramp_name "\n"					\
+ "	.type " #tramp_name ",@function\n"				\
+  #tramp_name ":\n"							\
+ 	/* Save return pointer */					\
+ "	stw	%r2,-20(%sp)\n"						\
+ 	/* Save argument registers in the call stack frame. */		\
+ "	stw	%r26,-36(%sp)\n"					\
+ "	stw	%r25,-40(%sp)\n"					\
+ "	stw	%r24,-44(%sp)\n"					\
+ "	stw	%r23,-48(%sp)\n"					\
+ 	/* Build a call frame, and save structure pointer. */		\
+ "	stwm	%r28,64(%sp)\n"						\
+ 									\
+ 	/* Set up args to fixup func.  */				\
+ "	ldw	8+4(%r20),%r26\n" /* got[1] == struct link_map *  */	\
+ "	copy	%r19,%r25\n"	  /* reloc offset  */			\
+ 									\
+ 	/* Call the real address resolver. */				\
+ "	bl	" #fixup_name ",%r2\n"					\
+ "	copy	%r21,%r19\n"	  /* delay slot, set fixup func ltp */	\
+ 									\
+ "	ldw	0(%r28),%r22\n"	  /* load up the returned func ptr */	\
+ "	ldw	4(%r28),%r19\n"						\
+ "	ldwm	-64(%sp),%r28\n"					\
+ 	/* Arguments. */						\
+ "	ldw	-36(%sp),%r26\n"					\
+ "	ldw	-40(%sp),%r25\n"					\
+ "	ldw	-44(%sp),%r24\n"					\
+ "	ldw	-48(%sp),%r23\n"					\
+ 	/* Call the real function. */					\
+ "	bv	%r0(%r22)\n"						\
+ 	/* Return pointer. */						\
+ "	ldw	-20(%sp),%r2\n"						\
+        );
+  
 #ifndef PROF
 #define ELF_MACHINE_RUNTIME_TRAMPOLINE			\
   TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup);	\
@@ -570,15 +568,15 @@
 	   probably haven't relocated the necessary values by this
 	   point so we have to find them ourselves. */
 
-	asm ("bl	0f,%0						    \n\
-	      depi	0,31,2,%0					    \n\
-0:	      addil	L'__boot_ldso_fptr - ($PIC_pcrel$0 - 8),%0	    \n\
-	      ldo	R'__boot_ldso_fptr - ($PIC_pcrel$0 - 12)(%%r1),%1   \n\
-	      addil	L'__fptr_root - ($PIC_pcrel$0 - 16),%0		    \n\
-	      ldo	R'__fptr_root - ($PIC_pcrel$0 - 20)(%%r1),%2	    \n\
-	      addil	L'__fptr_count - ($PIC_pcrel$0 - 24),%0		    \n\
-	      ldo	R'__fptr_count - ($PIC_pcrel$0 - 28)(%%r1),%3"
-	     :
+ 	asm ("bl	0f,%0\n\t"
+ 	     "depi	0,31,2,%0\n\t"
+ 	     "0:\taddil	L'__boot_ldso_fptr - ($PIC_pcrel$0 - 8),%0\n\t"
+ 	     "ldo	R'__boot_ldso_fptr - ($PIC_pcrel$0 - 12)(%%r1),%1\n\t"
+ 	     "addil	L'__fptr_root - ($PIC_pcrel$0 - 16),%0\n\t"
+ 	     "ldo	R'__fptr_root - ($PIC_pcrel$0 - 20)(%%r1),%2\n\t"
+ 	     "addil	L'__fptr_count - ($PIC_pcrel$0 - 24),%0\n\t"
+ 	     "ldo	R'__fptr_count - ($PIC_pcrel$0 - 28)(%%r1),%3"
+  	     :
 	     "=r" (dot),
 	     "=r" (p_boot_ldso_fptr),
 	     "=r" (p_fptr_root),

--l5oECiFRo5dp+2y7--


From - Thu Nov 08 21:25:35 2018
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Subject: [parisc-linux] [PATCH] Correctly define mcontext for HPPA
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libc-alpha,

A machine context is really a signal context.

This has never worked correctly in hppa since the
kernel has always returned a sigcontext instead of
the struct defined in ucontext.h.

This definition change is made such that glibc
matches the ABI, rather than presenting an odd
view of mcontext_t.

The only thought I have...

- Is there enough information in our sigcontext to
  implement [set,get,make,swap]context calls?

c.

---

2002-08-20  Carlos O'Donell  <carlos@baldric.uwo.ca>

        * sysdeps/unix/sysv/linux/hppa/sys/ucontext.h:
        Define mcontext_t as a sigcontext.


--wwU9tsYnHnYeRAKj
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=05-glibc23-hppa-mcontext

diff -urN glibc-2.2.5/sysdeps/unix/sysv/linux/hppa/sys/ucontext.h glibc-2.2.5/sysdeps/unix/sysv/linux/hppa/sys/ucontext.h
--- glibc-2.2.5/sysdeps/unix/sysv/linux/hppa/sys/ucontext.h	2002-08-20 20:50:17.000000000 -0400
+++ glibc-2.2.5/sysdeps/unix/sysv/linux/hppa/sys/ucontext.h	2002-08-20 20:49:01.000000000 -0400
@@ -52,11 +52,7 @@
   } fpregset_t;
 
 /* Context to describe whole processor state.  */
-typedef struct
-  {
-    gregset_t gregs;
-    fpregset_t fpregs;
-  } mcontext_t;
+typedef struct sigcontext mcontext_t;
 
 /* Userlevel context.  */
 typedef struct ucontext


--wwU9tsYnHnYeRAKj--


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libc-alpha,

The following patch bumps up the minimum kernel required for hppa, and
thus forces the build environment to have the most recent unaligned 
handler fixes.

Due to our old C++ binaries and libraries we will definately require
libc_cv_gcc_unwind_find_fde=yes in our configure.

c.

---

2002-11-11  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* sysdeps/unix/sysv/linux/configure.in:
	Make 2.4.19 minimum linux kernel for hppa, and add unwind symbols
	from gcc-3.0 era for backwards compatibility.
	* sysdeps/unix/sysv/linux/configure: Regenerate.



--V2AZ19bMCakBLong
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=02-glibc23-hppa-min-kern-unwind-fde

--- glibc-2.3.1.orig/sysdeps/unix/sysv/linux/configure.in	2002-10-25 21:06:29.000000000 -0400
+++ glibc-2.3.1/sysdeps/unix/sysv/linux/configure.in	2002-11-17 22:09:57.000000000 -0500
@@ -64,7 +64,8 @@
     arch_minimum_kernel=2.4.0
     ;;
   hppa*)
-    arch_minimum_kernel=2.3.99
+    libc_cv_gcc_unwind_find_fde=yes  
+    arch_minimum_kernel=2.4.19
     ;;
   m68k*)
     arch_minimum_kernel=2.0.10
--- glibc-2.3.1.orig/sysdeps/unix/sysv/linux/configure	2002-10-25 21:06:29.000000000 -0400
+++ glibc-2.3.1/sysdeps/unix/sysv/linux/configure	2002-11-17 22:10:17.000000000 -0500
@@ -101,7 +101,8 @@
     arch_minimum_kernel=2.4.0
     ;;
   hppa*)
-    arch_minimum_kernel=2.3.99
+    libc_cv_gcc_unwind_find_fde=yes  
+    arch_minimum_kernel=2.4.19
     ;;
   m68k*)
     arch_minimum_kernel=2.0.10

--V2AZ19bMCakBLong--


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Subject: [parisc-linux] [PATCH] Disable the use of fp regs in rtld.c for HPPA
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libc-alpha,

"Fixed point math in rtld.c segfaults the loader because the ltp is not
yet setup at the point where we need to access it."
	- Randolph Chung

I agree with Randolph (after having seen it under gdb), and here is the
patch.

c.
---

2002-11-11  Randolph Chung  <tausq@debian.org>

	* sysdeps/hppa/Makefile: Disable the use of fp regs in rtld.c


--bNvn4bxlrUVLu6cT
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=09-glibc23-hppa-buildhack

--- glibc/sysdeps/hppa/Makefile.orig	2002-09-11 20:19:15.000000000 -0700
+++ glibc/sysdeps/hppa/Makefile	2002-09-11 20:19:17.000000000 -0700
@@ -27,6 +27,7 @@
 endif
 
 ifeq ($(subdir),elf)
+CFLAGS-rtld.c += -mdisable-fpregs
 dl-routines += dl-symaddr dl-fptr
 rtld-routines += dl-symaddr dl-fptr
 endif

--bNvn4bxlrUVLu6cT--


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Subject: [parisc-linux] [PATCH] New ulps for HPPA
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libc-alpha,

New ulps for hppa.

c.
--

2002-11-11  Randolf Chung  <tausq@debian.org>

	* sysdeps/hppa/fpu/libm-test-ulps: Regenerate new ulps for hppa.


--edESjMboOAwUFn6i
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=10-glibc23-hppa-tests

--- glibc-2.3.1/sysdeps/hppa/fpu/libm-test-ulps	1969-12-31 19:00:00.000000000 -0500
+++ glibc-2.3.1/sysdeps/hppa/fpu/libm-test-ulps.new	2002-11-11 15:45:46.000000000 -0500
@@ -0,0 +1,890 @@
+# Begin of automatic generation
+
+# atan2
+Test "atan2 (-0.75, -1.0) == -2.49809154479650885165983415456218025":
+float: 3
+ifloat: 3
+Test "atan2 (0.75, -1.0) == 2.49809154479650885165983415456218025":
+float: 3
+ifloat: 3
+Test "atan2 (1.390625, 0.9296875) == 0.981498387184244311516296577615519772":
+float: 1
+ifloat: 1
+
+# atanh
+Test "atanh (0.75) == 0.972955074527656652552676371721589865":
+float: 1
+ifloat: 1
+
+# cacosh
+Test "Real part of: cacosh (-2 - 3 i) == -1.9833870299165354323470769028940395 + 2.1414491111159960199416055713254211 i":
+double: 1
+float: 7
+idouble: 1
+ifloat: 7
+Test "Imaginary part of: cacosh (-2 - 3 i) == -1.9833870299165354323470769028940395 + 2.1414491111159960199416055713254211 i":
+double: 1
+float: 3
+idouble: 1
+ifloat: 3
+
+# casin
+Test "Real part of: casin (0.75 + 1.25 i) == 0.453276177638793913448921196101971749 + 1.13239363160530819522266333696834467 i":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+# casinh
+Test "Real part of: casinh (-2 - 3 i) == -1.9686379257930962917886650952454982 - 0.96465850440760279204541105949953237 i":
+double: 5
+float: 1
+idouble: 5
+ifloat: 1
+Test "Imaginary part of: casinh (-2 - 3 i) == -1.9686379257930962917886650952454982 - 0.96465850440760279204541105949953237 i":
+double: 3
+float: 6
+idouble: 3
+ifloat: 6
+Test "Real part of: casinh (0.75 + 1.25 i) == 1.03171853444778027336364058631006594 + 0.911738290968487636358489564316731207 i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: casinh (0.75 + 1.25 i) == 1.03171853444778027336364058631006594 + 0.911738290968487636358489564316731207 i":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+# catan
+Test "Real part of: catan (-2 - 3 i) == -1.4099210495965755225306193844604208 - 0.22907268296853876629588180294200276 i":
+float: 3
+ifloat: 3
+Test "Imaginary part of: catan (-2 - 3 i) == -1.4099210495965755225306193844604208 - 0.22907268296853876629588180294200276 i":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "Real part of: catan (0.75 + 1.25 i) == 1.10714871779409050301706546017853704 + 0.549306144334054845697622618461262852 i":
+float: 4
+ifloat: 4
+
+# catanh
+Test "Real part of: catanh (-2 - 3 i) == -0.14694666622552975204743278515471595 - 1.3389725222944935611241935759091443 i":
+double: 4
+idouble: 4
+Test "Imaginary part of: catanh (-2 - 3 i) == -0.14694666622552975204743278515471595 - 1.3389725222944935611241935759091443 i":
+float: 4
+ifloat: 4
+Test "Real part of: catanh (0.75 + 1.25 i) == 0.261492138795671927078652057366532140 + 0.996825126463918666098902241310446708 i":
+double: 1
+idouble: 1
+Test "Imaginary part of: catanh (0.75 + 1.25 i) == 0.261492138795671927078652057366532140 + 0.996825126463918666098902241310446708 i":
+float: 6
+ifloat: 6
+
+# cbrt
+Test "cbrt (-27.0) == -3.0":
+double: 1
+idouble: 1
+Test "cbrt (0.75) == 0.908560296416069829445605878163630251":
+double: 1
+idouble: 1
+Test "cbrt (0.9921875) == 0.997389022060725270579075195353955217":
+double: 1
+idouble: 1
+
+# ccos
+Test "Imaginary part of: ccos (-2 - 3 i) == -4.1896256909688072301 - 9.1092278937553365979 i":
+float: 1
+ifloat: 1
+Test "Real part of: ccos (0.75 + 1.25 i) == 1.38173873063425888530729933139078645 - 1.09193013555397466170919531722024128 i":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "Imaginary part of: ccos (0.75 + 1.25 i) == 1.38173873063425888530729933139078645 - 1.09193013555397466170919531722024128 i":
+float: 1
+ifloat: 1
+
+# ccosh
+Test "Real part of: ccosh (-2 - 3 i) == -3.7245455049153225654 + 0.5118225699873846088 i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: ccosh (-2 - 3 i) == -3.7245455049153225654 + 0.5118225699873846088 i":
+float: 1
+ifloat: 1
+Test "Real part of: ccosh (0.75 + 1.25 i) == 0.408242591877968807788852146397499084 + 0.780365930845853240391326216300863152 i":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "Imaginary part of: ccosh (0.75 + 1.25 i) == 0.408242591877968807788852146397499084 + 0.780365930845853240391326216300863152 i":
+float: 1
+ifloat: 1
+
+# cexp
+Test "Imaginary part of: cexp (-2.0 - 3.0 i) == -0.13398091492954261346140525546115575 - 0.019098516261135196432576240858800925 i":
+float: 1
+ifloat: 1
+Test "Real part of: cexp (0.75 + 1.25 i) == 0.667537446429131586942201977015932112 + 2.00900045494094876258347228145863909 i":
+float: 1
+ifloat: 1
+
+# clog
+Test "Imaginary part of: clog (-2 - 3 i) == 1.2824746787307683680267437207826593 - 2.1587989303424641704769327722648368 i":
+float: 3
+ifloat: 3
+Test "Real part of: clog (0.75 + 1.25 i) == 0.376885901188190075998919126749298416 + 1.03037682652431246378774332703115153 i":
+float: 1
+ifloat: 1
+
+# clog10
+Test "Imaginary part of: clog10 (-0 + inf i) == inf + pi/2*log10(e) i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: clog10 (-0 - inf i) == inf - pi/2*log10(e) i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: clog10 (-2 - 3 i) == 0.5569716761534183846 - 0.9375544629863747085 i":
+double: 1
+float: 5
+idouble: 1
+ifloat: 5
+Test "Imaginary part of: clog10 (-3 + inf i) == inf + pi/2*log10(e) i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: clog10 (-3 - inf i) == inf - pi/2*log10(e) i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: clog10 (-inf + 0 i) == inf + pi*log10(e) i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: clog10 (-inf + 1 i) == inf + pi*log10(e) i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: clog10 (-inf - 0 i) == inf - pi*log10(e) i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: clog10 (-inf - 1 i) == inf - pi*log10(e) i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: clog10 (0 + inf i) == inf + pi/2*log10(e) i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: clog10 (0 - inf i) == inf - pi/2*log10(e) i":
+float: 1
+ifloat: 1
+Test "Real part of: clog10 (0.75 + 1.25 i) == 0.163679467193165171449476605077428975 + 0.447486970040493067069984724340855636 i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: clog10 (3 + inf i) == inf + pi/2*log10(e) i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: clog10 (3 - inf i) == inf - pi/2*log10(e) i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: clog10 (inf + inf i) == inf + pi/4*log10(e) i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: clog10 (inf - inf i) == inf - pi/4*log10(e) i":
+float: 1
+ifloat: 1
+
+# cos
+Test "cos (M_PI_6l * 2.0) == 0.5":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "cos (M_PI_6l * 4.0) == -0.5":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+Test "cos (pi/2) == 0":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+# cpow
+Test "Real part of: cpow (0.75 + 1.25 i, 0.0 + 1.0 i) == 0.331825439177608832276067945276730566 + 0.131338600281188544930936345230903032 i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: cpow (0.75 + 1.25 i, 0.0 + 1.0 i) == 0.331825439177608832276067945276730566 + 0.131338600281188544930936345230903032 i":
+float: 1
+ifloat: 1
+Test "Real part of: cpow (0.75 + 1.25 i, 0.75 + 1.25 i) == 0.117506293914473555420279832210420483 + 0.346552747708338676483025352060418001 i":
+double: 1
+float: 4
+idouble: 1
+ifloat: 4
+Test "Real part of: cpow (0.75 + 1.25 i, 1.0 + 1.0 i) == 0.0846958290317209430433805274189191353 + 0.513285749182902449043287190519090481 i":
+double: 2
+float: 3
+idouble: 2
+ifloat: 3
+Test "Real part of: cpow (2 + 3 i, 4 + 0 i) == -119.0 - 120.0 i":
+double: 1
+float: 4
+idouble: 1
+ifloat: 4
+Test "Imaginary part of: cpow (2 + 3 i, 4 + 0 i) == -119.0 - 120.0 i":
+float: 2
+ifloat: 2
+Test "Imaginary part of: cpow (e + 0 i, 0 + 2 * M_PIl i) == 1.0 + 0.0 i":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+# csinh
+Test "Imaginary part of: csinh (-2 - 3 i) == 3.5905645899857799520 - 0.5309210862485198052 i":
+double: 1
+idouble: 1
+Test "Real part of: csinh (0.75 + 1.25 i) == 0.259294854551162779153349830618433028 + 1.22863452409509552219214606515777594 i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: csinh (0.75 + 1.25 i) == 0.259294854551162779153349830618433028 + 1.22863452409509552219214606515777594 i":
+float: 1
+ifloat: 1
+
+# csqrt
+Test "Real part of: csqrt (-2 + 3 i) == 0.89597747612983812471573375529004348 + 1.6741492280355400404480393008490519 i":
+float: 1
+ifloat: 1
+Test "Real part of: csqrt (-2 - 3 i) == 0.89597747612983812471573375529004348 - 1.6741492280355400404480393008490519 i":
+float: 1
+ifloat: 1
+
+# ctan
+Test "Real part of: ctan (-2 - 3 i) == 0.0037640256415042482 - 1.0032386273536098014 i":
+double: 1
+idouble: 1
+Test "Imaginary part of: ctan (0.75 + 1.25 i) == 0.160807785916206426725166058173438663 + 0.975363285031235646193581759755216379 i":
+double: 1
+idouble: 1
+
+# ctanh
+Test "Real part of: ctanh (-2 - 3 i) == -0.9653858790221331242 + 0.0098843750383224937 i":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+Test "Imaginary part of: ctanh (0 + pi/4 i) == 0.0 + 1.0 i":
+float: 1
+ifloat: 1
+Test "Real part of: ctanh (0.75 + 1.25 i) == 1.37260757053378320258048606571226857 + 0.385795952609750664177596760720790220 i":
+double: 1
+idouble: 1
+
+# erf
+Test "erf (1.25) == 0.922900128256458230136523481197281140":
+double: 1
+idouble: 1
+
+# erfc
+Test "erfc (2.0) == 0.00467773498104726583793074363274707139":
+double: 1
+idouble: 1
+Test "erfc (4.125) == 0.542340079956506600531223408575531062e-8":
+double: 1
+idouble: 1
+
+# exp10
+Test "exp10 (-1) == 0.1":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+Test "exp10 (0.75) == 5.62341325190349080394951039776481231":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "exp10 (3) == 1000":
+double: 6
+float: 2
+idouble: 6
+ifloat: 2
+
+# expm1
+Test "expm1 (0.75) == 1.11700001661267466854536981983709561":
+double: 1
+idouble: 1
+Test "expm1 (1) == M_El - 1.0":
+float: 1
+ifloat: 1
+
+# hypot
+Test "hypot (-0.7, -12.4) == 12.419742348374220601176836866763271":
+float: 1
+ifloat: 1
+Test "hypot (-0.7, 12.4) == 12.419742348374220601176836866763271":
+float: 1
+ifloat: 1
+Test "hypot (-12.4, -0.7) == 12.419742348374220601176836866763271":
+float: 1
+ifloat: 1
+Test "hypot (-12.4, 0.7) == 12.419742348374220601176836866763271":
+float: 1
+ifloat: 1
+Test "hypot (0.7, -12.4) == 12.419742348374220601176836866763271":
+float: 1
+ifloat: 1
+Test "hypot (0.7, 12.4) == 12.419742348374220601176836866763271":
+float: 1
+ifloat: 1
+Test "hypot (12.4, -0.7) == 12.419742348374220601176836866763271":
+float: 1
+ifloat: 1
+Test "hypot (12.4, 0.7) == 12.419742348374220601176836866763271":
+float: 1
+ifloat: 1
+
+# j0
+Test "j0 (-4.0) == -3.9714980986384737228659076845169804197562E-1":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "j0 (0.75) == 0.864242275166648623555731103820923211":
+float: 1
+ifloat: 1
+Test "j0 (10.0) == -0.245935764451348335197760862485328754":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+Test "j0 (2.0) == 0.223890779141235668051827454649948626":
+float: 2
+ifloat: 2
+Test "j0 (4.0) == -3.9714980986384737228659076845169804197562E-1":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "j0 (8.0) == 0.171650807137553906090869407851972001":
+float: 1
+ifloat: 1
+
+# j1
+Test "j1 (10.0) == 0.0434727461688614366697487680258592883":
+float: 2
+ifloat: 2
+Test "j1 (2.0) == 0.576724807756873387202448242269137087":
+double: 1
+idouble: 1
+Test "j1 (8.0) == 0.234636346853914624381276651590454612":
+double: 1
+idouble: 1
+
+# jn
+Test "jn (0, -4.0) == -3.9714980986384737228659076845169804197562E-1":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "jn (0, 0.75) == 0.864242275166648623555731103820923211":
+float: 1
+ifloat: 1
+Test "jn (0, 10.0) == -0.245935764451348335197760862485328754":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+Test "jn (0, 2.0) == 0.223890779141235668051827454649948626":
+float: 2
+ifloat: 2
+Test "jn (0, 4.0) == -3.9714980986384737228659076845169804197562E-1":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "jn (0, 8.0) == 0.171650807137553906090869407851972001":
+float: 1
+ifloat: 1
+Test "jn (1, 10.0) == 0.0434727461688614366697487680258592883":
+float: 2
+ifloat: 2
+Test "jn (1, 2.0) == 0.576724807756873387202448242269137087":
+double: 1
+idouble: 1
+Test "jn (1, 8.0) == 0.234636346853914624381276651590454612":
+double: 1
+idouble: 1
+Test "jn (10, 0.125) == 0.250543369809369890173993791865771547e-18":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "jn (10, 0.75) == 0.149621713117596814698712483621682835e-10":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "jn (10, 10.0) == 0.207486106633358857697278723518753428":
+double: 4
+float: 3
+idouble: 4
+ifloat: 3
+Test "jn (10, 2.0) == 0.251538628271673670963516093751820639e-6":
+float: 4
+ifloat: 4
+Test "jn (3, 0.125) == 0.406503832554912875023029337653442868e-4":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "jn (3, 0.75) == 0.848438342327410884392755236884386804e-2":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "jn (3, 10.0) == 0.0583793793051868123429354784103409563":
+double: 3
+float: 1
+idouble: 3
+ifloat: 1
+Test "jn (3, 2.0) == 0.128943249474402051098793332969239835":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+# lgamma
+Test "lgamma (0.7) == 0.26086724653166651439":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "lgamma (1.2) == -0.853740900033158497197e-1":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+# log10
+Test "log10 (0.75) == -0.124938736608299953132449886193870744":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+Test "log10 (e) == log10(e)":
+float: 1
+ifloat: 1
+
+# log1p
+Test "log1p (-0.25) == -0.287682072451780927439219005993827432":
+float: 1
+ifloat: 1
+
+# sincos
+Test "sincos (M_PI_6l*2.0, &sin_res, &cos_res) puts 0.5 in cos_res":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "sincos (M_PI_6l*2.0, &sin_res, &cos_res) puts 0.86602540378443864676372317075293616 in sin_res":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "sincos (pi/2, &sin_res, &cos_res) puts 0 in cos_res":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "sincos (pi/6, &sin_res, &cos_res) puts 0.86602540378443864676372317075293616 in cos_res":
+float: 1
+ifloat: 1
+
+# tan
+Test "tan (pi/4) == 1":
+double: 1
+idouble: 1
+
+# tgamma
+Test "tgamma (-0.5) == -2 sqrt (pi)":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "tgamma (0.5) == sqrt (pi)":
+float: 1
+ifloat: 1
+Test "tgamma (0.7) == 1.29805533264755778568":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+# y0
+Test "y0 (1.0) == 0.0882569642156769579829267660235151628":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+Test "y0 (1.5) == 0.382448923797758843955068554978089862":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+Test "y0 (10.0) == 0.0556711672835993914244598774101900481":
+float: 1
+ifloat: 1
+Test "y0 (8.0) == 0.223521489387566220527323400498620359":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+# y1
+Test "y1 (0.125) == -5.19993611253477499595928744876579921":
+double: 1
+idouble: 1
+Test "y1 (1.5) == -0.412308626973911295952829820633445323":
+float: 1
+ifloat: 1
+Test "y1 (10.0) == 0.249015424206953883923283474663222803":
+double: 3
+float: 1
+idouble: 3
+ifloat: 1
+Test "y1 (2.0) == -0.107032431540937546888370772277476637":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "y1 (8.0) == -0.158060461731247494255555266187483550":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+# yn
+Test "yn (0, 1.0) == 0.0882569642156769579829267660235151628":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+Test "yn (0, 1.5) == 0.382448923797758843955068554978089862":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+Test "yn (0, 10.0) == 0.0556711672835993914244598774101900481":
+float: 1
+ifloat: 1
+Test "yn (0, 8.0) == 0.223521489387566220527323400498620359":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "yn (1, 0.125) == -5.19993611253477499595928744876579921":
+double: 1
+idouble: 1
+Test "yn (1, 1.5) == -0.412308626973911295952829820633445323":
+float: 1
+ifloat: 1
+Test "yn (1, 10.0) == 0.249015424206953883923283474663222803":
+double: 3
+float: 1
+idouble: 3
+ifloat: 1
+Test "yn (1, 2.0) == -0.107032431540937546888370772277476637":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "yn (1, 8.0) == -0.158060461731247494255555266187483550":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+Test "yn (10, 0.125) == -127057845771019398.252538486899753195":
+double: 1
+idouble: 1
+Test "yn (10, 0.75) == -2133501638.90573424452445412893839236":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "yn (10, 1.0) == -121618014.278689189288130426667971145":
+double: 1
+idouble: 1
+Test "yn (10, 10.0) == -0.359814152183402722051986577343560609":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "yn (10, 2.0) == -129184.542208039282635913145923304214":
+double: 2
+idouble: 2
+Test "yn (3, 0.125) == -2612.69757350066712600220955744091741":
+double: 1
+idouble: 1
+Test "yn (3, 0.75) == -12.9877176234475433186319774484809207":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "yn (3, 10.0) == -0.251362657183837329779204747654240998":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+Test "yn (3, 2.0) == -1.12778377684042778608158395773179238":
+double: 1
+idouble: 1
+
+# Maximal error of functions:
+Function: "atan2":
+float: 3
+ifloat: 3
+
+Function: "atanh":
+float: 1
+ifloat: 1
+
+Function: Real part of "cacosh":
+double: 1
+float: 7
+idouble: 1
+ifloat: 7
+
+Function: Imaginary part of "cacosh":
+double: 1
+float: 3
+idouble: 1
+ifloat: 3
+
+Function: Real part of "casin":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "casinh":
+double: 5
+float: 1
+idouble: 5
+ifloat: 1
+
+Function: Imaginary part of "casinh":
+double: 3
+float: 6
+idouble: 3
+ifloat: 6
+
+Function: Real part of "catan":
+float: 4
+ifloat: 4
+
+Function: Imaginary part of "catan":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "catanh":
+double: 4
+idouble: 4
+
+Function: Imaginary part of "catanh":
+float: 6
+ifloat: 6
+
+Function: "cbrt":
+double: 1
+idouble: 1
+
+Function: Real part of "ccos":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "ccos":
+float: 1
+ifloat: 1
+
+Function: Real part of "ccosh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "ccosh":
+float: 1
+ifloat: 1
+
+Function: Real part of "cexp":
+float: 1
+ifloat: 1
+
+Function: Imaginary part of "cexp":
+float: 1
+ifloat: 1
+
+Function: Real part of "clog":
+float: 1
+ifloat: 1
+
+Function: Imaginary part of "clog":
+float: 3
+ifloat: 3
+
+Function: Real part of "clog10":
+float: 1
+ifloat: 1
+
+Function: Imaginary part of "clog10":
+double: 1
+float: 5
+idouble: 1
+ifloat: 5
+
+Function: "cos":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: Real part of "cpow":
+double: 2
+float: 4
+idouble: 2
+ifloat: 4
+
+Function: Imaginary part of "cpow":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "csinh":
+float: 1
+ifloat: 1
+
+Function: Imaginary part of "csinh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "csqrt":
+float: 1
+ifloat: 1
+
+Function: Real part of "ctan":
+double: 1
+idouble: 1
+
+Function: Imaginary part of "ctan":
+double: 1
+idouble: 1
+
+Function: Real part of "ctanh":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "ctanh":
+float: 1
+ifloat: 1
+
+Function: "erf":
+double: 1
+idouble: 1
+
+Function: "erfc":
+double: 1
+idouble: 1
+
+Function: "exp10":
+double: 6
+float: 2
+idouble: 6
+ifloat: 2
+
+Function: "expm1":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "hypot":
+float: 1
+ifloat: 1
+
+Function: "j0":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "j1":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "jn":
+double: 4
+float: 4
+idouble: 4
+ifloat: 4
+
+Function: "lgamma":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "log10":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "log1p":
+float: 1
+ifloat: 1
+
+Function: "sincos":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "tan":
+double: 1
+idouble: 1
+
+Function: "tgamma":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "y0":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: "y1":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "yn":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+# end of automatic generation

--edESjMboOAwUFn6i--


From - Thu Nov 08 21:25:36 2018
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X-Mozilla-Keys:                                                                                 
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [PATCH] top-level configure changes for HPPA
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--0VNbQffo0Gc48lc+
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libc-aplha,

When checking for DWARF2 unwind info the link order for 
hppa requires -lgcc_eh to be placed before -lgcc.

Change tested on i386 and nothing broke.

c.

---

2002-11-16  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* configure.in: Change "-lgcc -lgcc_eh" to "-lgcc_eh -lgcc" to
	accomodate required hppa linking order.
	* configure: Regenerate.


--0VNbQffo0Gc48lc+
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=12-glibc23-hppa-configure

--- glibc-2.3.1/configure	2002-11-16 22:55:16.000000000 +0000
+++ glibc-2.3.1/configure	2002-11-16 22:58:08.000000000 +0000
@@ -5221,14 +5221,14 @@
 fi
 if { ac_try='${CC-cc} $CFLAGS -DCHECK__register_frame_info
                             -nostdlib -nostartfiles
-                            -o conftest conftest.c -lgcc -lgcc_eh >&5'
+                            -o conftest conftest.c -lgcc_eh -lgcc >&5'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   if ${CC-cc} $CFLAGS -DCHECK__register_frame_info -nostdlib -nostartfiles \
-     -o conftest conftest.c -lgcc -lgcc_eh -v 2>&1 >/dev/null \
+     -o conftest conftest.c -lgcc_eh -lgcc -v 2>&1 >/dev/null \
      | grep -q -- --eh-frame-hdr; then
     libc_cv_gcc_dwarf2_unwind_info=no_registry_needed
   else
--- glibc-2.3.1/configure.in	2002-11-16 22:55:16.000000000 +0000
+++ glibc-2.3.1/configure.in	2002-11-16 22:58:28.000000000 +0000
@@ -1565,9 +1565,9 @@
 fi
 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame_info
                             -nostdlib -nostartfiles
-                            -o conftest conftest.c -lgcc -lgcc_eh >&AS_MESSAGE_LOG_FD]); then
+                            -o conftest conftest.c -lgcc_eh -lgcc >&AS_MESSAGE_LOG_FD]); then
   if ${CC-cc} $CFLAGS -DCHECK__register_frame_info -nostdlib -nostartfiles \
-     -o conftest conftest.c -lgcc -lgcc_eh -v 2>&1 >/dev/null \
+     -o conftest conftest.c -lgcc_eh -lgcc -v 2>&1 >/dev/null \
      | grep -q -- --eh-frame-hdr; then
     libc_cv_gcc_dwarf2_unwind_info=no_registry_needed
   else

--0VNbQffo0Gc48lc+--


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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] Fix (for real this time) fcntl64 on HPPA
Date: Tue, 19 Nov 2002 02:13:07 -0500
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--s8uQA167RD2xhjBe
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libc-alpha,

The following changes adds a few defines so __USE_FILE_OFFSET64
works properly on hppa.

I fixed the changelog and the bug in the original patch.
Tested with samba + LFS support.

c.

 sysdeps/unix/sysv/linux/hppa/bits/fcntl.h |    6 ++++++
 sysdeps/unix/sysv/linux/hppa/fcntl.c      |    1 +
 2 files changed, 7 insertions(+)

---

2002-10-01  Randolph Chung  <tausq@debian.org>

        * sysdeps/unix/sysv/linux/hppa/fcntl.c:
        Include sysdeps/unix/sysv/linux/i386/fcntl.c
        * sysdeps/unix/sysv/linux/hppa/bits/fcntl.h:
        Change defines when using __USE_FILE_OFFSET64


--s8uQA167RD2xhjBe
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=08-glibc23-hppa-fcntl64

--- glibc/sysdeps/unix/sysv/linux/hppa/fcntl.c	2002-09-10 20:58:07.000000000 -0700
+++ glibc/sysdeps/unix/sysv/linux/hppa/fcntl.c	2002-09-10 20:58:07.000000000 -0700
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/i386/fcntl.c>
--- glibc/sysdeps/unix/sysv/linux/hppa/bits/fcntl.h	2002-09-12 10:31:56.000000000 -0700
+++ glibc/sysdeps/unix/sysv/linux/hppa/bits/fcntl.h	2002-09-12 23:43:14.000000000 -0700
@@ -63,9 +63,15 @@
 #define F_SETFD		2	/* Set file descriptor flags.  */
 #define F_GETFL		3	/* Get file status flags.  */
 #define F_SETFL		4	/* Set file status flags.  */
+#ifndef __USE_FILE_OFFSET64
 #define F_GETLK		5	/* Get record locking info.  */
 #define F_SETLK		6	/* Set record locking info (non-blocking).  */
 #define F_SETLKW	7	/* Set record locking info (blocking).  */
+#else
+#define F_GETLK		F_GETLK64  /* Get record locking info.  */
+#define F_SETLK		F_SETLK64  /* Set record locking info (non-blocking).  */
+#define F_SETLKW	F_SETLKW64 /* Set record locking info (blocking).  */
+#endif
 
 #define F_GETLK64	8	/* Get record locking info.  */
 #define F_SETLK64	9	/* Set record locking info (non-blocking).  */

--s8uQA167RD2xhjBe--


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: [parisc-linux] long bus walk times on boot up
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Well, my C180 is gone to a new home and my C360 is well on it's way, but I had a question about the new netinstall ISO's out there.  I had been running the 2.4.19-pa19-20020922-netinst.iso on the C180 and it didn't have the bus walk issues that cause the long boot up times.  I really would like to avoid having my C360 take 20+ minutes to boot up.  Are there any real huge issues with running this older kernal on my C360 or are there any immediate plans to fix the issues of having to walk the entire bus?  I'm still a little weary of compiling my own kernal (only done this through SAM on HP-UX), but if I was forced to I could probably figure it out using the HOWTO's.  Is there a kernal parameter I could tweak that could resolve the long bus walk times?  Or am I just totally off base?  :)

 

derek



---------------------------------
Do you Yahoo!?
Yahoo! Web Hosting - Let the expert host your site
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<P>Well, my C180 is gone to a new home and my C360 is well on it's way, but I had a question about the new netinstall ISO's out there.&nbsp; I had been running the 2.4.19-pa19-20020922-netinst.iso on the C180 and it didn't have the bus walk issues that cause the long boot up times.&nbsp; I really would like to avoid having my C360 take 20+ minutes to boot up.&nbsp; Are there any real huge issues with running this older kernal on my C360 or are there any immediate plans to fix the issues of having to walk the entire bus?&nbsp; I'm still a little weary of compiling my own kernal (only done this through SAM on HP-UX), but if I was forced to I could probably figure it out using the HOWTO's.&nbsp; Is there a kernal parameter I could tweak that could resolve the long bus walk times?&nbsp; Or am 
 I just totally off base?&nbsp; :)</P>
<P>&nbsp;</P>
<P>derek</P><p><br><hr size=1>Do you Yahoo!?<br>
<a href="http://rd.yahoo.com/hosting/mailsig/*http://webhosting.yahoo.com">Yahoo! Web Hosting</a> - Let the expert host your site
--0-779367258-1037806241=:5774--


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Subject: Re: [parisc-linux] long bus walk times on boot up
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On Wed, Nov 20, 2002 at 07:30:41AM -0800, Derek Engelhaupt wrote:
> 
> Well, my C180 is gone to a new home and my C360 is well on it's
> way, but I had a question about the new netinstall ISO's out there.
> I had been running the 2.4.19-pa19-20020922-netinst.iso on the C180 and
> it didn't have the bus walk issues that cause the long boot up times.
> I really would like to avoid having my C360 take 20+ minutes to boot up.
> Are there any real huge issues with running this older kernal on my C360
> or are there any immediate plans to fix the issues of having to walk
> the entire bus?  I'm still a little weary of compiling my own kernal
> (only done this through SAM on HP-UX), but if I was forced to I could
> probably figure it out using the HOWTO's.  Is there a kernal parameter
> I could tweak that could resolve the long bus walk times?  Or am I just
> totally off base?  :)

2.4.19-pa19 should run fine on a C360.  the long bus walk problem
isn't yet fixed in the 2.4 CVS (but should be fixed in the 2.5 tree).
this isn't a ploy to persuade more people to use 2.5; it's just ryan
didn't get around to it yet ;-)

-- 
Revolutions do not require corporate support.


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Subject: [parisc-linux] glibc + SuSE (When email becomes to much)
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pa,

I remember someone posting an email about trying
to build an unpatched version of glibc 2.3.1 :)

I have the patches required to build glibc 2.3.1,
if this person is still interested, please email 
me or the list.

Actually, 5 of the 8 patches I have are now in upstream
glibc... so you need very little to get upstream 
building (gcc-3.2 and new binutils).

My incoming email gets very filtered these days, 
and if you're in the queue for more than 30 days
it's likely that I'll forget... unless you have
physical presence in my life or frequent IRC
(e.g. Red haired vixens (real life), or Tausq (IRC) :)

c.



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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] long bus walk times on boot up
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Derek or anyone else experience this problem,

Feel free to test out this patch.  This impliments Willy's idea and
seems to work find on linux-2.5.  I can not test this against cvs head
on linux-2.4 since my C200 HPMCs in cpu_idle().

I do not have time to track down the linux-2.4 boot issue right now, but
I will commit this patch once I get C200 to boot cvs head and if
feedback from the patch is good.

Thanks,

- Ryan

On Wed, 2002-11-20 at 08:40, Matthew Wilcox wrote:
> On Wed, Nov 20, 2002 at 07:30:41AM -0800, Derek Engelhaupt wrote:
> > 
> > Well, my C180 is gone to a new home and my C360 is well on it's
> > way, but I had a question about the new netinstall ISO's out there.
> > I had been running the 2.4.19-pa19-20020922-netinst.iso on the C180 and
> > it didn't have the bus walk issues that cause the long boot up times.
> > I really would like to avoid having my C360 take 20+ minutes to boot up.
> > Are there any real huge issues with running this older kernal on my C360
> > or are there any immediate plans to fix the issues of having to walk
> > the entire bus?  I'm still a little weary of compiling my own kernal
> > (only done this through SAM on HP-UX), but if I was forced to I could
> > probably figure it out using the HOWTO's.  Is there a kernal parameter
> > I could tweak that could resolve the long bus walk times?  Or am I just
> > totally off base?  :)
> 
> 2.4.19-pa19 should run fine on a C360.  the long bus walk problem
> isn't yet fixed in the 2.4 CVS (but should be fixed in the 2.5 tree).
> this isn't a ploy to persuade more people to use 2.5; it's just ryan
> didn't get around to it yet ;-)
> 
> -- 
> Revolutions do not require corporate support.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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> From: Ryan Bradetich <rbradetich@uswest.net>
> To: Matthew Wilcox <willy@debian.org>, Derek Engelhaupt <derekengelhaupt@rocketmail.com>
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] long bus walk times on boot up
> Date: 20 Nov 2002 22:16:31 -0700
> 
> Derek or anyone else experience this problem,
> 
> Feel free to test out this patch.  This impliments Willy's idea and
> seems to work find on linux-2.5.  I can not test this against cvs head
> on linux-2.4 since my C200 HPMCs in cpu_idle().
> 
> I do not have time to track down the linux-2.4 boot issue right now, but
> I will commit this patch once I get C200 to boot cvs head and if
> feedback from the patch is good.
> 
> Thanks,
> 
> - Ryan
> 
> On Wed, 2002-11-20 at 08:40, Matthew Wilcox wrote:
> > On Wed, Nov 20, 2002 at 07:30:41AM -0800, Derek Engelhaupt wrote:
> > > 
> > > Well, my C180 is gone to a new home and my C360 is well on it's
> > > way, but I had a question about the new netinstall ISO's out there.
> > > I had been running the 2.4.19-pa19-20020922-netinst.iso on the C180 and
> > > it didn't have the bus walk issues that cause the long boot up times.
> > > I really would like to avoid having my C360 take 20+ minutes to boot up.
> > > Are there any real huge issues with running this older kernal on my C360
> > > or are there any immediate plans to fix the issues of having to walk
> > > the entire bus?  I'm still a little weary of compiling my own kernal
> > > (only done this through SAM on HP-UX), but if I was forced to I could
> > > probably figure it out using the HOWTO's.  Is there a kernal parameter
> > > I could tweak that could resolve the long bus walk times?  Or am I just
> > > totally off base?  :)
> > 
> > 2.4.19-pa19 should run fine on a C360.  the long bus walk problem
> > isn't yet fixed in the 2.4 CVS (but should be fixed in the 2.5 tree).
> > this isn't a ploy to persuade more people to use 2.5; it's just ryan
> > didn't get around to it yet ;-)
> > 
> > -- 
> > Revolutions do not require corporate support.
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> 


--=-gsK4+BL/NrmmTTAzb2GP
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Index: arch/parisc/kernel/drivers.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux/arch/parisc/kernel/drivers.c,v
retrieving revision 1.48
diff -u -p -r1.48 drivers.c
--- arch/parisc/kernel/drivers.c	11 Sep 2002 05:47:43 -0000	1.48
+++ arch/parisc/kernel/drivers.c	21 Nov 2002 05:10:51 -0000
@@ -9,6 +9,7 @@
  * Copyright (c) 1999 The Puffin Group
  * Copyright (c) 2001 Matthew Wilcox for Hewlett Packard
  * Copyright (c) 2001 Helge Deller <deller@gmx.de>
+ * Copyright (c) 2001,2002 Ryan Bradetich=20
  *=20
  * The file handles registering devices and drivers, then matching them.
  * It's the closest we get to a dating agency.
@@ -23,7 +24,6 @@
 #include <asm/hardware.h>
 #include <asm/io.h>
 #include <asm/pdc.h>
-#include <asm/gsc.h>
=20
 /* See comments in include/asm-parisc/pci.h */
 struct pci_dma_ops *hppa_dma_ops;
@@ -416,6 +416,7 @@ alloc_pa_dev(unsigned long hpa, struct h
 	dev->id.sversion =3D ((iodc_data[4] & 0x0f) << 16) |
 			(iodc_data[5] << 8) | iodc_data[6];
 	dev->hpa =3D hpa;
+
 	name =3D parisc_hardware_description(&dev->id);
 	if (name) {
 		strncpy(dev->name, name, sizeof(dev->name)-1);
@@ -461,30 +462,25 @@ int register_parisc_device(struct parisc
 #define BC_PORT_MASK 0x8
 #define BC_LOWER_PORT 0x8
=20
+#define IO_STATUS 	offsetof(struct bc_module, io_status)
=20
 #define BUS_CONVERTER(dev) \
         ((dev->id.hw_type =3D=3D HPHW_IOA) || (dev->id.hw_type =3D=3D HPHW=
_BCPORT))
=20
 #define IS_LOWER_PORT(dev) \
-        ((gsc_readl(&((struct bc_module *)dev->hpa)->io_status) \
-                & BC_PORT_MASK) =3D=3D BC_LOWER_PORT)
-
-#define READ_IO_IO_LOW(dev) \
-	(dev->id.hw_type =3D=3D HPHW_IOA ? \
-	        __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_io=
_low) << 16 : \
-	        __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_io=
_low))
-
-#define READ_IO_IO_HIGH(dev) \
-	(dev->id.hw_type =3D=3D HPHW_IOA ? \
-	        __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_io=
_high) << 16 : \
-	        __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_io=
_high))
+        ((__raw_readl(dev->hpa + IO_STATUS) & BC_PORT_MASK) =3D=3D BC_LOWE=
R_PORT)
=20
+#define MAX_NATIVE_DEVICES 64
+#define NATIVE_DEVICE_OFFSET 0x1000
=20
-static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_h=
igh,=20
-			    struct parisc_device *parent);
-
-#define FLEX_MASK (unsigned long)0xfffffffffffc0000
+#define FLEX_MASK 	(unsigned long)0xfffffffffffc0000
+#define IO_IO_LOW	offsetof(struct bc_module, io_io_low)
+#define IO_IO_HIGH	offsetof(struct bc_module, io_io_high)
+#define READ_IO_IO_LOW(dev)  (unsigned long)(signed int)__raw_readl(dev->h=
pa + IO_IO_LOW)
+#define READ_IO_IO_HIGH(dev) (unsigned long)(signed int)__raw_readl(dev->h=
pa + IO_IO_HIGH)
=20
+static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_h=
igh,
+                            struct parisc_device *parent);
=20
 void walk_lower_bus(struct parisc_device *dev)
 {
@@ -493,15 +489,17 @@ void walk_lower_bus(struct parisc_device
 	if(!BUS_CONVERTER(dev) || IS_LOWER_PORT(dev))
 		return;
=20
-	io_io_low =3D ((unsigned long)(signed int)READ_IO_IO_LOW(dev) + ~FLEX_MAS=
K) & FLEX_MASK;
-	io_io_high =3D ((unsigned long)(signed int)READ_IO_IO_HIGH(dev) + ~FLEX_M=
ASK) & FLEX_MASK;
+	if(dev->id.hw_type =3D=3D HPHW_IOA) {
+		io_io_low =3D (unsigned long)(signed int)(READ_IO_IO_LOW(dev) << 16);
+		io_io_high =3D io_io_low + MAX_NATIVE_DEVICES * NATIVE_DEVICE_OFFSET;
+	} else {
+		io_io_low =3D (READ_IO_IO_LOW(dev) + ~FLEX_MASK) & FLEX_MASK;
+		io_io_high =3D (READ_IO_IO_HIGH(dev)+ ~FLEX_MASK) & FLEX_MASK;
+	}
=20
 	walk_native_bus(io_io_low, io_io_high, dev);
 }
=20
-#define MAX_NATIVE_DEVICES 64
-#define NATIVE_DEVICE_OFFSET 0x1000
-
 /**
  * walk_native_bus -- Probe a bus for devices
  * @io_io_low: Base address of this bus.
@@ -515,7 +513,7 @@ void walk_lower_bus(struct parisc_device
  * keyboard ports).  This problem is not yet solved.
  */
 static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_h=
igh,
-			    struct parisc_device *parent)
+                            struct parisc_device *parent)
 {
 	int i, devices_found =3D 0;
 	unsigned long hpa =3D io_io_low;
@@ -523,7 +521,7 @@ static void walk_native_bus(unsigned lon
=20
 	get_node_path(parent, &path);
 	do {
-		for (i =3D 0; i < MAX_NATIVE_DEVICES; i++, hpa +=3D NATIVE_DEVICE_OFFSET=
) {
+		for(i =3D 0; i < MAX_NATIVE_DEVICES; i++, hpa +=3D NATIVE_DEVICE_OFFSET)=
 {
 			struct parisc_device *dev;
=20
 			/* Was the device already added by Firmware? */
@@ -539,7 +537,7 @@ static void walk_native_bus(unsigned lon
 			}
 			walk_lower_bus(dev);
 		}
-	} while (!devices_found && hpa < io_io_high);
+	} while(!devices_found && hpa < io_io_high);
 }
=20
 #define CENTRAL_BUS_ADDR (unsigned long) 0xfffffffffff80000
@@ -552,7 +550,7 @@ static void walk_native_bus(unsigned lon
  */
 void walk_central_bus(void)
 {
-	walk_native_bus(CENTRAL_BUS_ADDR,=20
+	walk_native_bus(CENTRAL_BUS_ADDR,
 			CENTRAL_BUS_ADDR + (MAX_NATIVE_DEVICES * NATIVE_DEVICE_OFFSET),
 			&root);
 }

--=-gsK4+BL/NrmmTTAzb2GP--



From - Thu Nov 08 21:25:36 2018
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Subject: RE: [parisc-linux] glibc + SuSE (When email becomes to much)
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To: "Carlos O'Donell" <carlos@baldric.uwo.ca>,
	parisc-linux@lists.parisc-linux.org
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Hi Carlos,

>pa,
>
>I remember someone posting an email about trying
>to build an unpatched version of glibc 2.3.1 :)

I am not this one but to build toolchain I used the last glibc-2.3.1-5 dpkg
sources and the build of glibc was successfully completed this night :)

Congratulation,
    Joel

PS1: gcc-3.3 (let say phase 2) failled but I still have a look

>
>I have the patches required to build glibc 2.3.1,
>if this person is still interested, please email 
>me or the list.
>
>Actually, 5 of the 8 patches I have are now in upstream
>glibc... so you need very little to get upstream 
>building (gcc-3.2 and new binutils).
>
>My incoming email gets very filtered these days, 
>and if you're in the queue for more than 30 days
>it's likely that I'll forget... unless you have
>physical presence in my life or frequent IRC
>(e.g. Red haired vixens (real life), or Tausq (IRC) :)
>

ps2: Do you get my last mail about trap 17 investigation results

-----------------------------------------------------
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>-- Original Message --
>From: jsoe0708@tiscali.be
>Subject: RE: [parisc-linux] glibc + SuSE (When email becomes to much)
>To: "Carlos O'Donell" <carlos@baldric.uwo.ca>,
>	parisc-linux@lists.parisc-linux.org
>Date: Thu, 21 Nov 2002 07:53:21 +0100
>
>
>Hi Carlos,
>
>>pa,
>>
>>I remember someone posting an email about trying
>>to build an unpatched version of glibc 2.3.1 :)
>
>I am not this one but to build toolchain I used the last glibc-2.3.1-5 dpkg
>sources and the build of glibc was successfully completed this night :)
>
>Congratulation,
>    Joel
>
>PS1: gcc-3.3 (let say phase 2) failled but I still have a look
>
Here is the error message:
mkdir libgcc
if [ -f stmp-dirs ]; then true; else touch stmp-dirs; fi
/Develop/parisc-linux/build/gcc/gcc/xgcc -B/Develop/parisc-linux/build/gcc/gcc/
-B/Develop/parisc-linux/parisc-SN33/hppa-linux/bin/ -B/Develop/parisc-linux/parisc-SN33/hppa-linux/lib/
-isystem /Develop/parisc-linux/parisc-SN33/hppa-linux/include -O2  -DIN_GCC
   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem
./include  -fPIC -DELF=1 -DLINUX=1 -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED
 -I. -I. -I/Develop/parisc-linux/src/gcc/gcc -I/Develop/parisc-linux/src/gcc/gcc/.
-I/Develop/parisc-linux/src/gcc/gcc/config -I/Develop/parisc-linux/src/gcc/gcc/../include
-DL_divI -xassembler-with-cpp -c /Develop/parisc-linux/src/gcc/gcc/config/pa/milli64.S
-o libgcc/./_divI.o
/Develop/parisc-linux/build/gcc/gcc/collect2: /lib/libc.so.6: version `GLIBC_2.3'
not found (required by /Develop/parisc-linux/build/gcc/gcc/collect2)
make[2]: *** [libgcc/./_divI.oS] Error 1
make[2]: Leaving directory `/Develop/parisc-linux/build/gcc/gcc'
make[1]: *** [libgcc.a] Error 2
make[1]: Leaving directory `/Develop/parisc-linux/build/gcc/gcc'
make: *** [all-gcc] Error 2

### Wed Nov 20 18:54:33 2002 ###

So it seems that it did not get the right path to the libc.so?

Thanks in advance for help,
    Joel


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From: Chris Jantzen <chris-parisc@maybe.net>
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Subject: [parisc-linux] C180 not booting Sarge kernel
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FYI, my sarge-based C180 has not been able to boot 2.4.19-32_18 or _22.1;
I have to interact with IPL and fall back to 2.4.18_62.2. It gets as
far as the "...if this is the last message you see..." and I never hear
from it again, even on the network. And I think after a very very long
time, it falls back to firmware. At least, I see DHCP requests coming
out of it after a while. (I only just hooked up serial console to
interact with IPL after getting no response. No I don't boot it up too
often, it's a "side project".)

Also, "uname -a" segfaults.

I'll try unplugging the GSC and EISA cards plugged into it tomorrow.
I'll also try letting it just sit there under supervision and see what
really happens.

-- 
chris jantzen kb7rnl =->         __O
Insert witty comment here.     _`\<,_
http://www.maybe.net/         (*)/ (*)


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:16877

> FYI, my sarge-based C180 has not been able to boot 2.4.19-32_18 or _22.1;
> I have to interact with IPL and fall back to 2.4.18_62.2. It gets as
> far as the "...if this is the last message you see..." and I never hear
> from it again, even on the network. And I think after a very very long
> time, it falls back to firmware. At least, I see DHCP requests coming
> out of it after a while. (I only just hooked up serial console to
> interact with IPL after getting no response. No I don't boot it up too
> often, it's a "side project".)

HP hardware is occasionally quirky :}

> Also, "uname -a" segfaults.

That bug got squashed in unstable. You'll see the fix soon.
 
> I'll try unplugging the GSC and EISA cards plugged into it tomorrow.
> I'll also try letting it just sit there under supervision and see what
> really happens.

Good idea :)
If it doesn't work, get back to the list.

c.


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Xref: news.gmane.org gmane.linux.ports.parisc:16878

> -DL_divI -xassembler-with-cpp -c /Develop/parisc-linux/src/gcc/gcc/config/pa/milli64.S
> -o libgcc/./_divI.o
> /Develop/parisc-linux/build/gcc/gcc/collect2: /lib/libc.so.6: version `GLIBC_2.3'
> not found (required by /Develop/parisc-linux/build/gcc/gcc/collect2)
> make[2]: *** [libgcc/./_divI.oS] Error 1
> make[2]: Leaving directory `/Develop/parisc-linux/build/gcc/gcc'
> make[1]: *** [libgcc.a] Error 2
> make[1]: Leaving directory `/Develop/parisc-linux/build/gcc/gcc'
> make: *** [all-gcc] Error 2
> 
> ### Wed Nov 20 18:54:33 2002 ###
> 
> So it seems that it did not get the right path to the libc.so?

Set LD_LIBRARY_PATH to include the directory where your new libc is.
You may also want to set the GCC LIBRARY_PATH environment variable.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] C180 not booting Sarge kernel
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On Thu, 21 Nov 2002, Chris Jantzen wrote:
> FYI, my sarge-based C180 has not been able to boot 2.4.19-32_18 or _22.1;
> I have to interact with IPL and fall back to 2.4.18_62.2. It gets as
> far as the "...if this is the last message you see..." and I never hear
> from it again, even on the network. And I think after a very very long
> time, it falls back to firmware. At least, I see DHCP requests coming
> out of it after a while. (I only just hooked up serial console to
> interact with IPL after getting no response. No I don't boot it up too
> often, it's a "side project".)

This is the "bus-walk" issue I asked about a few weeks back. Apparently
the system is looking through every possible connection, looking for
peripherals, and doesn't continue until it finishes. My C180 sits for ~20
minutes at that point, then continues and runs normally. Boots normally on
2.4.18-pa59, happens on all the 2.4.19 kernels (pa20, pa24 for sure, as I
tried both of those). Not sure about 2.4.20-rc1-pa6, but it did boot (I
wasn't paying attention - powered up before dinner, after dinner
everything was waiting for me <g>)

"They" swear this has a fix in 2.5, but I just let it take it's time and
all seems happy...




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Xref: news.gmane.org gmane.linux.ports.parisc:16880

Hi,

for all compiling a 2.5cvs kernel with gcc-3.3cvs ... how ?


--- cut ---
  gcc -Wp,-MD,arch/parisc/lib/.memset.o.d -D__KERNEL__ -Iinclude -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -nostdinc -iwithprefix
include    -DKBUILD_BASENAME=memset   -c -o arch/parisc/lib/memset.o arch/parisc/lib/memset.c
  rm -f arch/parisc/lib/lib.a; ar  rcs arch/parisc/lib/lib.a arch/parisc/lib/lusercopy.o arch/parisc/lib/bitops.o arch/parisc/lib/checksum.o arch/parisc/lib/io.o arch/parisc/lib/memset.o
  gcc -E -Wp,-MD,arch/parisc/.vmlinux.lds.s.d_ -D__ASSEMBLY__ -D__KERNEL__ -Iinclude -nostdinc -iwithprefix include   -P -C -Uparisc   -o arch/parisc/vmlinux.lds.s arch/parisc/vmlinux.lds.S
echo '  Generating build number'
  Generating build number
. scripts/mkversion > .tmp_version
mv -f .tmp_version .version
make -f scripts/Makefile.build obj=init
  Generating include/linux/compile.h (updated)
  gcc -Wp,-MD,init/.version.o.d -D__KERNEL__ -Iinclude -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -nostdinc -iwithprefix include
-DKBUILD_BASENAME=version   -c -o init/version.o init/version.c
   ld   -r -o init/built-in.o init/main.o init/version.o init/do_mounts.o init/initramfs.o
        ld  -T arch/parisc/vmlinux.lds.s arch/parisc/kernel/head.o   init/built-in.o --start-group  usr/built-in.o arch/parisc/kernel/pdc_cons.o arch/parisc/kernel/process.o  arch/parisc/mm/built-in.o  arch/parisc/kernel/built-in.o  arch/parisc/hpux/built-in.o  arch/parisc/math-emu/built-in.o
arch/parisc/kernel/init_task.o  kernel/built-in.o  mm/built-in.o  fs/built-in.o  ipc/built-in.o  security/built-in.o  crypto/built-in.o  lib/lib.a  arch/parisc/lib/lib.a `gcc -print-libgcc-file-name`  drivers/built-in.o  sound/built-in.o  net/built-in.o --end-group  -o vmlinux
arch/parisc/kernel/built-in.o(__ksymtab+0x250): undefined reference to `$$mulU'
make: *** [vmlinux] Error 1
--- cut ---


build with:

bz@apollo:/usr/src/linux> gcc -v
Reading specs from /usr/local/lib/gcc-lib/hppa-linux/3.3/specs
Configured with: ../gcc/configure -v --enable-languages=c,c++ --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-long-long --enable-nls --without-included-gettext --disable-checking --enable-threads=posix hppa-linux
Thread model: posix
gcc version 3.3 20021120 (experimental)


and either:
	binutils 2.13.90.0.10-2 (debian)
or
	binutils 20021107 (compiled with gcc-3.3cvs)


same error with both......

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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Xref: news.gmane.org gmane.linux.ports.parisc:16881

>         ld  -T arch/parisc/vmlinux.lds.s arch/parisc/kernel/head.o   init/built-in.o --start-group  usr/built-in.o arch/parisc/kernel/pdc_cons.o arch/parisc/kernel/process.o  arch/parisc/mm/built-in.o  arch/parisc/kernel/built-in.o  arch/parisc/hpux/built-in.o  arch/parisc/math-emu/built-in.o
> arch/parisc/kernel/init_task.o  kernel/built-in.o  mm/built-in.o  fs/built-in.o  ipc/built-in.o  security/built-in.o  crypto/built-in.o  lib/lib.a  arch/parisc/lib/lib.a `gcc -print-libgcc-file-name`  drivers/built-in.o  sound/built-in.o  net/built-in.o --end-group  -o vmlinux
> arch/parisc/kernel/built-in.o(__ksymtab+0x250): undefined reference to `$$mulU'

$$mulU is a non-existant millicode function.  It is not needed and the
reference should be removed from the kernel source.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Thu, Nov 21, 2002 at 08:57:54AM -0500, Carlos O'Donell wrote:
> > FYI, my sarge-based C180 has not been able to boot 2.4.19-32_18 or _22.1;
> > I have to interact with IPL and fall back to 2.4.18_62.2. It gets as
> > far as the "...if this is the last message you see..." and I never hear
> > from it again, even on the network. And I think after a very very long
> > time, it falls back to firmware. At least, I see DHCP requests coming
> > out of it after a while. (I only just hooked up serial console to
> > interact with IPL after getting no response. No I don't boot it up too
> > often, it's a "side project".)
> 
> HP hardware is occasionally quirky :}
> 
> > Also, "uname -a" segfaults.
> 
> That bug got squashed in unstable. You'll see the fix soon.
>  
> > I'll try unplugging the GSC and EISA cards plugged into it tomorrow.
> > I'll also try letting it just sit there under supervision and see what
> > really happens.
> 
> Good idea :)
> If it doesn't work, get back to the list.

Well, after leaving 22.1 running, it does appear to come up after a
while. About 20 minutes. I am rather certain 18 never booted. Taking all
the expansion cards out does not make any difference.

After doing this, it occurred to me that maybe this was the bus walk
issue that I had ignored on the mailing list from a week ago. :-)

On Thu, Nov 21, 2002 at 08:34:38AM -0900, Tom wrote:
> "They" swear this has a fix in 2.5, but I just let it take it's time and
> all seems happy...

Well, we'll have to keep on them, eh? :-)

While I have somebody's attention: I have some EISA 3c597's that I'd
like to use in this machine. I carefully compile the kernel module with
the same parameters and install it and all I ever get is:

ryoko:~# modprobe 3c59x
3c59x: Donald Becker and others. www.scyld.com/network/vortex.html
3c59x: 3Com EISA 3c590 Vortex 10Mbps at 0x1000. Vers LK1.1.16

ccio-dma.c:638: Assertion dev failed!
Kernel panic: dev

Message from syslogd@ryoko at  Thu Nov 21 09:47:32 2002 ...
ryoko kernel: Kernel panic: dev

I don't get any kind of "HMPC" or register dump or anything else. Just
sits there and stops responding.

Is it ever possible that these cards would work in PA-RISC? They
certainly fit in the slot (;-)), and don't have any x86 code on them. Or
do I need to buckle down and buy a replacement backplane and go PCI?

-- 
chris jantzen kb7rnl =->         __O
Insert witty comment here.     _`\<,_
http://www.maybe.net/         (*)/ (*)


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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] C180 not booting Sarge kernel
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On Thu, Nov 21, 2002 at 02:09:30PM -0800, Chris Jantzen wrote:
> While I have somebody's attention: I have some EISA 3c597's that I'd
> like to use in this machine. I carefully compile the kernel module with
> the same parameters and install it and all I ever get is:
> 
> ryoko:~# modprobe 3c59x
> 3c59x: Donald Becker and others. www.scyld.com/network/vortex.html
> 3c59x: 3Com EISA 3c590 Vortex 10Mbps at 0x1000. Vers LK1.1.16
> 
> ccio-dma.c:638: Assertion dev failed!
> Kernel panic: dev
> 
> Message from syslogd@ryoko at  Thu Nov 21 09:47:32 2002 ...
> ryoko kernel: Kernel panic: dev

Yeah, so somebody needs to write the code that allows EISA devices to
do DMA back to the host ... I have the specs here, maybe I should write
them up and somebody else can write the code?

-- 
Revolutions do not require corporate support.


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From: jsoe0708@tiscali.be
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Subject: [parisc-linux] small add patch from 2.4.19 not yet in 2.4.20
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To: "Helge Deller" <deller@gmx.de>
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Hi Helge and all,

Here is some small diff file of some stuff found in 2.4.19-pa24 but not yet
in 2.4.20-rc1. I am not able to judge their importance so I submit it to
your attention.

=================================================================================
diff -Naur -x CVS -x .cvsignore -x '*.orig' -x math-emu linux-2.4.20-rc1-pa6/arch/parisc/kernel/syscall.S
linux-2.4.20-rc1-pa6t/arch/parisc/kernel/syscall.S
--- linux-2.4.20-rc1-pa6/arch/parisc/kernel/syscall.S	2002-08-07 07:43:26.000000000
+0200
+++ linux-2.4.20-rc1-pa6t/arch/parisc/kernel/syscall.S	2002-10-30 18:39:33.000000000
+0100
@@ -593,18 +593,11 @@
 	ENTRY_DIFF(ftruncate64)	/* 200 */
 	ENTRY_SAME(getdents64)
 	ENTRY_DIFF(fcntl64)
-#ifdef CONFIG_XFS_FS
-	ENTRY_SAME(attrctl)
-	ENTRY_SAME(acl_get)
-	ENTRY_SAME(acl_set)            /* 205 */
-#else
-	ENTRY_SAME(ni_syscall)
-	ENTRY_SAME(ni_syscall)
-	ENTRY_SAME(ni_syscall)	       /* 205 */
-#endif
-	ENTRY_SAME(gettid)             
+	ENTRY_SAME(ni_syscall)		/* attrctl */
+	ENTRY_SAME(ni_syscall)		/* acl_get */
+	ENTRY_SAME(ni_syscall)		/* acl_set */
+	ENTRY_SAME(gettid)
 	ENTRY_SAME(readahead)          
-	ENTRY_SAME(tkill)
 
 .end
 
diff -Naur -x CVS -x .cvsignore -x '*.orig' -x math-emu linux-2.4.20-rc1-pa6/drivers/char/hp_psaux.c
linux-2.4.20-rc1-pa6t/drivers/char/hp_psaux.c
--- linux-2.4.20-rc1-pa6/drivers/char/hp_psaux.c	2002-11-13 16:56:38.000000000
+0100
+++ linux-2.4.20-rc1-pa6t/drivers/char/hp_psaux.c	2002-11-01 19:25:48.000000000
+0100
@@ -197,7 +197,7 @@
 }
 #endif 
 
-static int init_keyb(unsigned long hpa)
+static int __init init_keyb(unsigned long hpa)
 {
 	int res = 0;
 	unsigned long flags;
diff -Naur -x CVS -x .cvsignore -x '*.orig' -x math-emu linux-2.4.20-rc1-pa6/drivers/net/pcnet32.c
linux-2.4.20-rc1-pa6t/drivers/net/pcnet32.c
--- linux-2.4.20-rc1-pa6/drivers/net/pcnet32.c	2002-11-13 16:58:23.000000000
+0100
+++ linux-2.4.20-rc1-pa6t/drivers/net/pcnet32.c	2002-11-01 21:30:18.000000000
+0100
@@ -45,7 +45,7 @@
 #include <linux/skbuff.h>
 #include <linux/spinlock.h>
 
-static const char version[] __devinitdata =
+static const char *version =
 DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " tsbogend@alpha.franken.de\n";
 
 /*
@@ -207,10 +207,10 @@
  *	   fix pci probe not increment cards_found
  *	   FD auto negotiate error workaround for xSeries250
  *	   clean up and using new mii module
- * v1.27b  Sep 30 2002 Kent Yoder <yoder1@us.ibm.com>
- * 	   Added timer for cable connection state changes.
- * v1.27c  Sat Apr 13 2002 Helge Deller <deller@gmx.de>
+ * v1.27b  Sat Apr 13 2002 Helge Deller <deller@gmx.de>
  * 	   typo-fixes & cleanups
+ * v1.27c  Sep 30 2002 Kent Yoder <yoder1@us.ibm.com>
+ * 	   Added timer for cable connection state changes.
  */
 
 
diff -Naur -x CVS -x .cvsignore -x '*.orig' -x math-emu linux-2.4.20-rc1-pa6/drivers/scsi/cpqfcTSstructs.h
linux-2.4.20-rc1-pa6t/drivers/scsi/cpqfcTSstructs.h
--- linux-2.4.20-rc1-pa6/drivers/scsi/cpqfcTSstructs.h	2002-11-18 09:10:31.000000000
+0100
+++ linux-2.4.20-rc1-pa6t/drivers/scsi/cpqfcTSstructs.h	2002-11-07 08:56:22.000000000
+0100
@@ -413,7 +413,9 @@
 } TachLiteERQ;
 
 // for now, just 32 bit DMA, eventually 40something, with code changes
-#define CPQFCTS_DMA_MASK 0xFFFFFFFFUL
+//#define CPQFCTS_DMA_MASK 0xFFFFFFFFUL
+#define CPQFCTS_DMA_MASK ((unsigned long) (0x00000000FFFFFFFF))
+
 
 #define TL_MAX_SG_ELEM_LEN 0x7ffff  // Max buffer length a single S/G entry
 				// may represent (a hardware limitation).  The
diff -Naur -x CVS -x .cvsignore -x '*.orig' -x math-emu linux-2.4.20-rc1-pa6/fs/exec.c
linux-2.4.20-rc1-pa6t/fs/exec.c
--- linux-2.4.20-rc1-pa6/fs/exec.c	2002-11-18 09:24:17.000000000 +0100
+++ linux-2.4.20-rc1-pa6t/fs/exec.c	2002-11-07 10:31:14.000000000 +0100
@@ -394,6 +394,7 @@
 		struct page *page = bprm->page[i];
 		if (page) {
 			bprm->page[i] = NULL;
+			mm->rss++;
 			put_dirty_page(current,page,stack_base);
 		}
 		stack_base += PAGE_SIZE;

=================================================================================

Thanks in advance,
    Joel


********************************************************************************
Controlez mieux votre consommation Internet...surfez Tiscali Complete...http://tiscali.complete.be



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Hi people,

	I would like to know about usage of .subspa, because I am converting
some asm sourcecodes in hp-ux to linux.
	When iI will try to compile the source code with "cc --hppa-linux
-std=iso9899:1990 -march=2.0 -mpa-risc-2-0 -D__KERNEL__ -I../../include -I.
-c -o myfile.o myfile.s, the result is always" the same "Error: unknown
pseudo-op: `.subspa'".
	Why this happens?

Thanks in advance,

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com
*   +55-51-3316-2852 Telnet  725-2852
FAX +55-51-3316-2754 Mobile +55-51-9965-8020





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Subject: Re: [parisc-linux] pa-risc assembler
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> 	I would like to know about usage of .subspa, because I am converting
> some asm sourcecodes in hp-ux to linux.
> 	When iI will try to compile the source code with "cc --hppa-linux
> -std=iso9899:1990 -march=2.0 -mpa-risc-2-0 -D__KERNEL__ -I../../include -I.
> -c -o myfile.o myfile.s, the result is always" the same "Error: unknown
> pseudo-op: `.subspa'".
> 	Why this happens?

hppa-linux doesn't use the .subspa directive. depending on the
particular construct it will need to be translated into .text, .rodata,
.bss, etc...

HTH,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] cpu affinity
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Hi people,

	Does anybody know if hppa linux implements cpu affinity?

Thanks in advance,

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com
*   +55-51-3316-2852 Telnet  725-2852






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On Fri, Nov 22, 2002 at 08:20:03AM -0800, FARINATI,LEANDRO (HP-Brazil,ex1) wrote:
> Hi people,
> 
> 	Does anybody know if hppa linux implements cpu affinity?

Yes, this is a generic facility.  AIUI the facility is not exposed to
userspace but it's used by (for example) ksoftirqd.

I assume you're talking about process <-> CPU affinity rather than any
other form of affinity ...

-- 
Revolutions do not require corporate support.


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Hello Dave,

>> -DL_divI -xassembler-with-cpp -c /Develop/parisc-linux/src/gcc/gcc/config/pa/milli64.S
>> -o libgcc/./_divI.o
>> /Develop/parisc-linux/build/gcc/gcc/collect2: /lib/libc.so.6: version
`GLIBC_2.3'
>> not found (required by /Develop/parisc-linux/build/gcc/gcc/collect2)
>> make[2]: *** [libgcc/./_divI.oS] Error 1
>> make[2]: Leaving directory `/Develop/parisc-linux/build/gcc/gcc'
>> make[1]: *** [libgcc.a] Error 2
>> make[1]: Leaving directory `/Develop/parisc-linux/build/gcc/gcc'
>> make: *** [all-gcc] Error 2
>> 
>> ### Wed Nov 20 18:54:33 2002 ###
>> 
>> So it seems that it did not get the right path to the libc.so?
>
>Set LD_LIBRARY_PATH to include the directory where your new libc is.
>You may also want to set the GCC LIBRARY_PATH environment variable.
>
[Sorry I was cut from Internet for a long time]

But I also thought to add "LD_LIBRARY_PATH=$DEST/hppa-linux/lib" where is
located the new libc-2.3.1 and export but now the problem is into make:

make: /lib/ld.so.1: version 'GLIBC_PRIVATE' not found (required by /MyPath2/libc.so.6)

Do I wrongly build glibc or install?

Thanks again,
    Joel


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Hi all,

I try to install squid on a sarge install with a kernel 2.4.19-32. This squid
failled with data_page_fault.

As I would like to build an elementary FW there is no dev tools on this box.
So I try to debug the problem on my unstable (just update this morning) box
but here the problem is absolutly different: squid loop and a strace tells
me:
...
sched_yield()    =0
sched_yield()    =0
sched_yield()    =0
nanosleep({0, 2000001}, NULL)   =0
sched_yield()    =0
sched_yield()    =0
...

What should (could) I do ... 
in the first case I do not want to reinstall dev tools;
in the second one I do not know how to revert last apt-get update?

Thansk in advance,
    Joel


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> I try to install squid on a sarge install with a kernel 2.4.19-32. This squid
> failled with data_page_fault.

if this is reproducible, it is much better if you generate a core file
and look at that instead.

> As I would like to build an elementary FW there is no dev tools on this box.
> So I try to debug the problem on my unstable (just update this morning) box
> but here the problem is absolutly different: squid loop and a strace tells
> me:
> ...
> sched_yield()    =0
> sched_yield()    =0

i suspect this is quite normal, depending on what squid is doing.

strace by default also only looks at the parent task. if any children
are fork()ed they will not be traced unless you tell it to. 

randolph


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> But I also thought to add "LD_LIBRARY_PATH=$DEST/hppa-linux/lib" where is
> located the new libc-2.3.1 and export but now the problem is into make:
> 
> make: /lib/ld.so.1: version 'GLIBC_PRIVATE' not found (required by /MyPath2/libc.so.6)

I seem to be using a non-dynamic version of make to avoid problems like
this.  I will leave it to others to comment on the compatibility of 2.3.1
with previous versions of glibc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi all,

Don't know if it is the right place but searching to build a m3 bootstrap
for hppa linux, I find a way through SRC M3 (not yet sure it will works)
for which sources are open but not under GPL.

Is there a possibility that hp will release that sources under such a licence
in a near future?

Thanks in advance for info,
    Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:16894

Hi Randolph,

>
>> I try to install squid on a sarge install with a kernel 2.4.19-32. This
>squid
>> failled with data_page_fault.
>
>if this is reproducible, it is much better if you generate a core file
>and look at that instead.

Good idea I will try.

>
>> As I would like to build an elementary FW there is no dev tools on this
>box.
>> So I try to debug the problem on my unstable (just update this morning)
>box
>> but here the problem is absolutly different: squid loop and a strace tells
>> me:
>> ...
>> sched_yield()    =0
>> sched_yield()    =0
>
>i suspect this is quite normal, depending on what squid is doing.
>
>strace by default also only looks at the parent task. if any children
>are fork()ed they will not be traced unless you tell it to. 
>
Hmm strace -f -p xxx 

says the same and no forks process?

I will try first the core dump.

Thanks,
    Joel



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Hi people,

	To compile the sourcecode that I am migrating, I need of stdsyms.h
include file. What package is necessary to acquire this file?

Thanks in advance

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com
*   +55-51-3316-2852 Telnet  725-2852
FAX +55-51-3316-2754 Mobile +55-51-9965-8020





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To whom it may concern,

 

Please remove the address dan.mclaughlin@amcol.com
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Thanks you,

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Subject: [parisc-linux] Re: [parisc-linux-cvs] DIFF 2.4.20-rc1-pa7
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Xref: news.gmane.org gmane.linux.ports.parisc:16897

On Fri, Nov 22, 2002 at 11:23:25AM -0700, Grant Grundler wrote:
> Index: drivers/net/ppp_generic.c
> ===================================================================
> RCS file: /var/cvs/linux/drivers/net/ppp_generic.c,v
> retrieving revision 1.14
> diff -u -p -r1.14 ppp_generic.c
> --- drivers/net/ppp_generic.c	13 Nov 2002 16:57:46 -0000	1.14
> +++ drivers/net/ppp_generic.c	22 Nov 2002 05:53:55 -0000
> @@ -387,9 +387,9 @@ static ssize_t ppp_read(struct file *fil
>  	for (;;) {
>  		set_current_state(TASK_INTERRUPTIBLE);
>  		skb = skb_dequeue(&pf->rq);
> +		ret = 0;
>  		if (skb)
>  			break;
> -		ret = 0;
>  		if (pf->dead)
>  			break;
>  		ret = -EAGAIN;

Uhh.. why have you made this change?  It's clearly wrong and diverges
from upstream.

-- 
Revolutions do not require corporate support.


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On Fri, Nov 22, 2002 at 10:36:08AM -0800, FARINATI,LEANDRO (HP-Brazil,ex1) wrote:
> 	To compile the sourcecode that I am migrating, I need of stdsyms.h
> include file. What package is necessary to acquire this file?

never heard of it.  from a quick google search, it looks like an hpux-ism.

-- 
Revolutions do not require corporate support.


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Subject: Re: [parisc-linux] stdsyms.h
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> On Fri, Nov 22, 2002 at 10:36:08AM -0800, FARINATI,LEANDRO (HP-Brazil,ex1) wrote:
> > 	To compile the sourcecode that I am migrating, I need of stdsyms.h
> > include file. What package is necessary to acquire this file?
> 
> never heard of it.  from a quick google search, it looks like an hpux-ism.

It's actually sys/stdsyms.h and its function is similar to that of features.h.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Leif Harcke <lharcke@Stanford.EDU>
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Subject: [parisc-linux] Tulip driver fails to advertise 100baseTx media capability
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Just got Debian 3.0 (woody) booted on a C240.  When the Tulip driver is
initialized by the kernel, it fails to advertise the 100baseTx media
capability of the DS21143 chip.  I think this is a kernel issue, not a
Debian or Tulip issue.

Setting the PDC/firmware (v. 6.3, latest for the C240) to force the
100/Full duplex rate at boot time doesn't fix the problem, nor does
issuing an "ether=0,0,[11|14],eth0" to the kernel from the PALO kernel
parameters line.

I think the way Tulip is called by the kernel somehow causes only 10baseT
to be advertised.  It's easy enough to correct after the fact with a
simple "mii-tool -A" command, but it would be nicer if the media
advertising was properly set by the kernel at boot time.  See output of
uname, dmesg, and mii-tool below.

A thousand pardons if this is the wrong list for this bug.  I'll re-post
to the debian-hppa or the tulip list if people think those are the proper
places.

- --
Leif Harcke
lharcke@stanford.edu


sar2:~# uname -a
Linux sar2 2.4.18-32 #1 Sat Mar 30 18:26:22 MST 2002 parisc unknown

sar2:~# dmesg | grep ulip
Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
eth0: Digital DS21143 Tulip rev 65 at 0xff00, 00:10:83:05:73:95, IRQ 96.

sar2:~# mii-tool -v
eth0: negotiated 10baseT-FD, link ok
  product info: Level One LXT970/971 rev 1
  basic mode:   autonegotiation enabled
  basic status: autonegotiation complete, link ok
  capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
  advertising:  10baseT-FD 10baseT-HD
  link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD

sar2:~# mii-tool -A 100baseTx-FD,100baseTx-HD,10baseT-FD,10baseT-HD
restarting autonegotiation...

sar2:~# mii-tool -v
eth0: negotiated 100baseTx-FD, link ok
  product info: Level One LXT970/971 rev 1
  basic mode:   autonegotiation enabled
  basic status: autonegotiation complete, link ok
  capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
  advertising:  100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
  link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD



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Matthew Wilcox wrote:
> Uhh.. why have you made this change?  It's clearly wrong and diverges
> from upstream.

reverted - I didn't see upstream had fixed it differently.

sorry,
grant


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I just got a pile of 712/60's - $80 for 10 of em :)


i've set one up & now i'm going through the disks one at a time &
cloning them as its quicker than going through the install each time


i've hit one disk that gives me this whenever i try to fdisk it 


sixty:~# fdisk /dev/sdb

Unable to read /dev/sdb


when i tried to zero the disk, i got this....

sixty:~# dd if=/dev/zero of=/dev/sdb count=1 bs=512 
dd: writing `/dev/sdb': Input/output error
1+0 records in
0+0 records out

the console sees the disk when i use search 

does this indicate a dead disk?

the disk was ok until i put it into a mac......

James S





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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Tulip driver fails to advertise 100baseTx media capability
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Leif Harcke wrote:
> Just got Debian 3.0 (woody) booted on a C240.  When the Tulip driver is
> initialized by the kernel, it fails to advertise the 100baseTx media
> capability of the DS21143 chip.  I think this is a kernel issue, not a
> Debian or Tulip issue.

Is the tulip comminucating on the wire at all?  (Sounds like it is)

> I think the way Tulip is called by the kernel somehow causes only 10baseT
> to be advertised.  It's easy enough to correct after the fact with a
> simple "mii-tool -A" command, but it would be nicer if the media
> advertising was properly set by the kernel at boot time.  See output of
> uname, dmesg, and mii-tool below.

It's possible this is a problem/interaction with your switch/hub.

> A thousand pardons if this is the wrong list for this bug.  I'll re-post
> to the debian-hppa or the tulip list if people think those are the proper
> places.

It does sound like a kernel problem and this is a good place to start.

> sar2:~# uname -a
> Linux sar2 2.4.18-32 #1 Sat Mar 30 18:26:22 MST 2002 parisc unknown

I committed a tulip "phy reset" issue fix in later kernels that I don't
think is part of the 2.4.18 Debian 3.0 kernel.

> 
> sar2:~# dmesg | grep ulip
> Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
> tulip0: no phy info, aborting mtable build
> tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
> eth0: Digital DS21143 Tulip rev 65 at 0xff00, 00:10:83:05:73:95, IRQ 96.
> 
> sar2:~# mii-tool -v
> eth0: negotiated 10baseT-FD, link ok
>   product info: Level One LXT970/971 rev 1
>   basic mode:   autonegotiation enabled
>   basic status: autonegotiation complete, link ok
>   capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
>   advertising:  10baseT-FD 10baseT-HD
>   link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD

On my a500 (64-bit) I get:
gsyprf11:/usr/src/linux# mii-tool -v eth0
SIOCGMIIPHY on 'eth0' failed: Invalid argument

Looks like we have some work to do for 64-bit.

B180 (32-bit) is much happier:
debian:~# mii-tool -v eth0
eth0: no autonegotiation, 100baseTx-FD, link ok
  product info: Level One LXT970/971 rev 0
  basic mode:   autonegotiation enabled
  basic status: autonegotiation complete, link ok
  capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
  advertising:  100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
  link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
debian:~# uname -r
2.4.19-pa24


> sar2:~# mii-tool -A 100baseTx-FD,100baseTx-HD,10baseT-FD,10baseT-HD
> restarting autonegotiation...
> 
> sar2:~# mii-tool -v
> eth0: negotiated 100baseTx-FD, link ok
>   product info: Level One LXT970/971 rev 1
>   basic mode:   autonegotiation enabled
>   basic status: autonegotiation complete, link ok
>   capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
>   advertising:  100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
>   link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD

This really sounds like a tulip driver/switch interaction problem.

grant


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Subject: Re: [parisc-linux] Tulip driver fails to advertise 100baseTx media capability
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On Fri, Nov 22, 2002 at 03:09:37PM -0700, Grant Grundler wrote:
> On my a500 (64-bit) I get:
> gsyprf11:/usr/src/linux# mii-tool -v eth0
> SIOCGMIIPHY on 'eth0' failed: Invalid argument
> 
> Looks like we have some work to do for 64-bit.

SIOCGMIIPHY is unsupportable through ioctl32 -- the ioctl number is not
unique so we can't translate the arguments.  ethtool doesn't suffer from
this problem.

-- 
Revolutions do not require corporate support.


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after i posted a question to the list i got this in return .....



>Subject: 	Warning - we have discarded your message as spam!
>Date: 	22 Nov 2002 23:03:14 +0000

>Our email system has investigated the origin and mail path of your
>message and discarded it as spam. It has not reached it's recipient.

>The system uses internet spam blacklist servers and one of your emails'
>IP path addresses was found on list ORDB. If you want to know more
>about this list, please check http://www.ordb.org/faq/why_rejected.

>Your message was sent with this subject: [parisc-linux] Disk problems 

>You may need to reconfigure your mail server and get your systems
>delisted from ORDB or use another email account to reach the recipient
>you sent the email to in the first place.


btw, the URL is a dead end.

can anybody tell me why i've been barred ?


James S






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James Smith wrote:
> btw, the URL is a dead end.

try http://www.ordb.org/faq/#why_rejected

> can anybody tell me why i've been barred ?

FAQ above does explain - I haven't read it all.
Maybe you can tell us after you've read it.

grant


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> > can anybody tell me why i've been barred ?

Don't bother.  The message is spam.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Well quit putting them in those darn macs....just kidding.  Who makes the disk?  IBM has certain tools like their drive fitness tests that has saved me a few times.  Seagate and others probably have similar tools.  Check their support sites and it may just be a matter of the wrong block size written by your mac.  IBM drives are especially notorious for having weird block sizes and such.
derek
 James Smith <james@compusmithllc.com> wrote:I just got a pile of 712/60's - $80 for 10 of em :)


i've set one up & now i'm going through the disks one at a time &
cloning them as its quicker than going through the install each time


i've hit one disk that gives me this whenever i try to fdisk it 


sixty:~# fdisk /dev/sdb

Unable to read /dev/sdb


when i tried to zero the disk, i got this....

sixty:~# dd if=/dev/zero of=/dev/sdb count=1 bs=512 
dd: writing `/dev/sdb': Input/output error
1+0 records in
0+0 records out

the console sees the disk when i use search 

does this indicate a dead disk?

the disk was ok until i put it into a mac......

James S



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<P>Well quit putting them in those darn macs....just kidding.&nbsp; Who makes the disk?&nbsp; IBM has certain tools like their drive fitness tests that has saved me a few times.&nbsp; Seagate and others probably have similar tools.&nbsp; Check their support sites and it may just be a matter of the wrong block size written by your mac.&nbsp; IBM drives are especially notorious for having weird block sizes and such.
<P>derek
<P>&nbsp;<B><I>James Smith &lt;james@compusmithllc.com&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">I just got a pile of 712/60's - $80 for 10 of em :)<BR><BR><BR>i've set one up &amp; now i'm going through the disks one at a time &amp;<BR>cloning them as its quicker than going through the install each time<BR><BR><BR>i've hit one disk that gives me this whenever i try to fdisk it <BR><BR><BR>sixty:~# fdisk /dev/sdb<BR><BR>Unable to read /dev/sdb<BR><BR><BR>when i tried to zero the disk, i got this....<BR><BR>sixty:~# dd if=/dev/zero of=/dev/sdb count=1 bs=512 <BR>dd: writing `/dev/sdb': Input/output error<BR>1+0 records in<BR>0+0 records out<BR><BR>the console sees the disk when i use search <BR><BR>does this indicate a dead disk?<BR><BR>the disk was ok until i put it into a mac......<BR><BR>James S<
 BR><BR><BR><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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Subject: Re: [parisc-linux] Tulip driver fails to advertise 100baseTx media
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Hash: SHA1

On Fri, 22 Nov 2002, Grant Grundler wrote:
> Is the tulip comminucating on the wire at all?  (Sounds like it is)

Sure, at 10 Mbps after boot, and at 100 Mbps full duplex once I use
mii-tool to corretly set the autonegotiation advertising register.

> It's possible this is a problem/interaction with your switch/hub.

I don't think this is a possibility.  The kernel/Tulip have to decide what
to advertise on the link long before autonegotiation is attempted, right?
The switch has absolutely no effect on what the kernel/Tulip decide to
advertise prior to the start of negotiation.

> >sar2:~# dmesg | grep ulip
> >Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
> >tulip0: no phy info, aborting mtable build
> >tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
                                                       ^^^^^^^^^^^^^^^^
This is the smoking gun.  According to the chart at
  http://www.scyld.com/diag/mii-status.html#anar
the number 0061 (it is base 16 despite the lack of 0x) means the
kernel/Tulip have decided to only advertise the 10mbps capabilities of the
chipset prior to when negotiaton with the switch begins.  From reading
kernel source it appears that the Tulip driver sets some default state if
it can't build the mtable.  Perhaps this is where the error comes from.

> I committed a tulip "phy reset" issue fix in later kernels that I don't
> think is part of the 2.4.18 Debian 3.0 kernel.

Thanks much,

- --
Leif Harcke
lharcke@stanford.edu

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Subject: Re: [parisc-linux] Tulip driver fails to advertise 100baseTx media
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On Fri, 22 Nov 2002, Leif Harcke wrote:

> Just got Debian 3.0 (woody) booted on a C240.  When the Tulip driver is
> initialized by the kernel, it fails to advertise the 100baseTx media
> capability of the DS21143 chip.  I think this is a kernel issue, not a
> Debian or Tulip issue.

the same for me.
It happens one out of 30 time that I get a 100mbit connection.
Usually I just get 10mbit full duplex (this machine is connected to a
10/100 Switch (not Hub), and just other 100Mbit capable network devices
are attached to it.

> Setting the PDC/firmware (v. 6.3, latest for the C240) to force the
> 100/Full duplex rate at boot time doesn't fix the problem, nor does
> issuing an "ether=0,0,[11|14],eth0" to the kernel from the PALO kernel
> parameters line.

The same for me

> I think the way Tulip is called by the kernel somehow causes only 10baseT
> to be advertised.  It's easy enough to correct after the fact with a
> simple "mii-tool -A" command, but it would be nicer if the media
> advertising was properly set by the kernel at boot time.  See output of
> uname, dmesg, and mii-tool below.
>
> A thousand pardons if this is the wrong list for this bug.  I'll re-post
> to the debian-hppa or the tulip list if people think those are the proper
> places.

I think it more a hardware related issue. The network card in the C240
is VERY picky about 100mbit negotiation.

Maybe you are able to force to switch it to 100mbit via software,
but I'm not sure.

See also http://www.unixnerd.demon.co.uk/hp_unix.html , the FAQ at
the bottom at the page.

greetings max



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On Fri, 22 Nov 2002, John David Anglin wrote:

> Don't bother.  The message is spam.

Yes, but it's f***ing annoying.
I hope this can be 'fixed' somehow, but I actually doubt it.
Hope this won't be the future of spam ... :-/

Max



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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] [PATCH] highmem_io for the sym53c8xx_2 driver??
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Hello parisc-linux hackers,

I traced my boot problem with cvs head for the linux-2.4 tree down to
the following patch:

Index: drivers/scsi/sym53c8xx_2/sym53c8xx.h
===================================================================
RCS file: /var/cvs/linux/drivers/scsi/sym53c8xx_2/sym53c8xx.h,v
retrieving revision 1.4
diff -u -p -r1.4 sym53c8xx.h
--- drivers/scsi/sym53c8xx_2/sym53c8xx.h	13 Nov 2002 15:15:44 -0000	1.4
+++ drivers/scsi/sym53c8xx_2/sym53c8xx.h	23 Nov 2002 07:32:10 -0000
@@ -119,8 +119,7 @@ int sym53c8xx_release(struct Scsi_Host *
 	this_id:		7,					\
 	sg_tablesize:		0,					\
 	cmd_per_lun:		0,					\
-	use_clustering:		DISABLE_CLUSTERING,			\
-	highmem_io:		1}
+	use_clustering:		DISABLE_CLUSTERING}
 
 #endif /* defined(HOSTS_C) || defined(MODULE) */ 
 
Index: drivers/scsi/sym53c8xx_2/sym_glue.c
===================================================================
RCS file: /var/cvs/linux/drivers/scsi/sym53c8xx_2/sym_glue.c,v
retrieving revision 1.6
diff -u -p -r1.6 sym_glue.c
--- drivers/scsi/sym53c8xx_2/sym_glue.c	16 Nov 2002 06:10:46 -0000	1.6
+++ drivers/scsi/sym53c8xx_2/sym_glue.c	23 Nov 2002 07:32:11 -0000
@@ -2154,7 +2154,6 @@ sym_attach (Scsi_Host_Template *tpnt, in
 	instance->max_cmd_len	= 16;
 #endif
 	instance->select_queue_depths = sym53c8xx_select_queue_depths;
-	instance->highmem_io	= 1;
 
 	SYM_UNLOCK_HCB(np, flags);
 



I am not sure what the highmem_io flag does, but when it is enabled it
causes my C200 to HPMC.

Thoughts?

Thanks,

- Ryan



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Subject: Re: [parisc-linux] Tulip driver fails to advertise 100baseTx media capability
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In HPUX there are "conf" files used to configure the cards during the software deamon start-ups.  There are different "conf" files for the different network cards.  These conf files control half or full duplex, mac address settings, and whether autonegotiation is on or off.
 
derek
 "M. Grabert" <xam@cs.ucc.ie> wrote:On Fri, 22 Nov 2002, Leif Harcke wrote:

> Just got Debian 3.0 (woody) booted on a C240. When the Tulip driver is
> initialized by the kernel, it fails to advertise the 100baseTx media
> capability of the DS21143 chip. I think this is a kernel issue, not a
> Debian or Tulip issue.

the same for me.
It happens one out of 30 time that I get a 100mbit connection.
Usually I just get 10mbit full duplex (this machine is connected to a
10/100 Switch (not Hub), and just other 100Mbit capable network devices
are attached to it.

> Setting the PDC/firmware (v. 6.3, latest for the C240) to force the
> 100/Full duplex rate at boot time doesn't fix the problem, nor does
> issuing an "ether=0,0,[11|14],eth0" to the kernel from the PALO kernel
> parameters line.

The same for me

> I think the way Tulip is called by the kernel somehow causes only 10baseT
> to be advertised. It's easy enough to correct after the fact with a
> simple "mii-tool -A" command, but it would be nicer if the media
> advertising was properly set by the kernel at boot time. See output of
> uname, dmesg, and mii-tool below.
>
> A thousand pardons if this is the wrong list for this bug. I'll re-post
> to the debian-hppa or the tulip list if people think those are the proper
> places.

I think it more a hardware related issue. The network card in the C240
is VERY picky about 100mbit negotiation.

Maybe you are able to force to switch it to 100mbit via software,
but I'm not sure.

See also http://www.unixnerd.demon.co.uk/hp_unix.html , the FAQ at
the bottom at the page.

greetings max

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<P>In HPUX there are "conf" files used to configure the cards during the software deamon start-ups.&nbsp; There are different "conf" files for the different network cards.&nbsp; These conf files control half or full duplex, mac address settings, and whether autonegotiation is on or off.
<P>&nbsp;
<P>derek
<P>&nbsp;<B><I>"M. Grabert" &lt;xam@cs.ucc.ie&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">On Fri, 22 Nov 2002, Leif Harcke wrote:<BR><BR>&gt; Just got Debian 3.0 (woody) booted on a C240. When the Tulip driver is<BR>&gt; initialized by the kernel, it fails to advertise the 100baseTx media<BR>&gt; capability of the DS21143 chip. I think this is a kernel issue, not a<BR>&gt; Debian or Tulip issue.<BR><BR>the same for me.<BR>It happens one out of 30 time that I get a 100mbit connection.<BR>Usually I just get 10mbit full duplex (this machine is connected to a<BR>10/100 Switch (not Hub), and just other 100Mbit capable network devices<BR>are attached to it.<BR><BR>&gt; Setting the PDC/firmware (v. 6.3, latest for the C240) to force the<BR>&gt; 100/Full duplex rate at boot time doesn't fix the prob
 lem, nor does<BR>&gt; issuing an "ether=0,0,[11|14],eth0" to the kernel from the PALO kernel<BR>&gt; parameters line.<BR><BR>The same for me<BR><BR>&gt; I think the way Tulip is called by the kernel somehow causes only 10baseT<BR>&gt; to be advertised. It's easy enough to correct after the fact with a<BR>&gt; simple "mii-tool -A" command, but it would be nicer if the media<BR>&gt; advertising was properly set by the kernel at boot time. See output of<BR>&gt; uname, dmesg, and mii-tool below.<BR>&gt;<BR>&gt; A thousand pardons if this is the wrong list for this bug. I'll re-post<BR>&gt; to the debian-hppa or the tulip list if people think those are the proper<BR>&gt; places.<BR><BR>I think it more a hardware related issue. The network card in the C240<BR>is VERY picky about 100mbit negoti
 ation.<BR><BR>Maybe you are able to force to switch it to 100mbit via software,<BR>but I'm not sure.<BR><BR>See also http://www.unixnerd.demon.co.uk/hp_unix.html , the FAQ at<BR>the bottom at the page.<BR><BR>greetings max<BR><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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From - Thu Nov 08 21:25:39 2018
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Subject: Re: [parisc-linux] Tulip driver fails to advertise 100baseTx media capability
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Leif Harcke wrote:
> > It's possible this is a problem/interaction with your switch/hub.
> 
> I don't think this is a possibility.  The kernel/Tulip have to decide what
> to advertise on the link long before autonegotiation is attempted, right?

I gather you know more about negotiation that I.

> From reading
> kernel source it appears that the Tulip driver sets some default state if
> it can't build the mtable.  Perhaps this is where the error comes from.

Can you look a bit more and post a patch?
Several people could comment.

thanks,
grant


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Subject: Re: [parisc-linux] [PATCH] highmem_io for the sym53c8xx_2 driver??
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Ryan Bradetich wrote:
...
> I am not sure what the highmem_io flag does, but when it is enabled it
> causes my C200 to HPMC.

That's for the SCSI midlayer to know whether or not the driver can do
64-bit DMA or not. Basically it means SCSI will use "page+offset"
instead of "address" when building SG lists.

All parisc machines require 32-bit DMA - ie through an IO MMU or direct.
Failures with highmem_io enabled suggests we aren't handling
"page+offset" correctly in the iommu code.

grant


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Ryan Bradetich wrote:
> I am not sure what the highmem_io flag does, but when it is enabled it
> causes my C200 to HPMC.

yeah - ccio-dma.c isn't using sg_virt_address() to access to the virtual
address of an SG list entry. It's defined in include/asm/scatterlist.h.
See sba_iommu.c on how to use this correctly.

Attached diff is a first cut, untested. My advice is to rewrite the
loop so sg_virt_address() result is saved once instead of referencing
the macro 3 (or more) times in the main loop.

grant


Index: ccio-dma.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/ccio-dma.c,v
retrieving revision 1.56
diff -u -p -r1.56 ccio-dma.c
--- ccio-dma.c	17 Nov 2002 20:44:11 -0000	1.56
+++ ccio-dma.c	24 Nov 2002 02:42:09 -0000
@@ -805,7 +805,7 @@ ccio_fill_pdir(struct ioc *ioc, struct s
 
 		DBG_RUN_SG(" %d : %08lx/%05x %p/%05x\n", nents,
 			   (unsigned long)sg_dma_address(startsg), cnt,
-			   startsg->address, startsg->length
+			   sg_virt_address(startsg), startsg->length
 		);
 
 		/*
@@ -825,7 +825,7 @@ ccio_fill_pdir(struct ioc *ioc, struct s
 		** Look for a VCONTIG chunk
 		*/
 		if (cnt) {
-			unsigned long vaddr = (unsigned long)startsg->address;
+			unsigned long vaddr = (unsigned long)sg_virt_address(startsg);
 			ASSERT(pdirp);
 
 			/* Since multiple Vcontig blocks could make up
@@ -878,8 +878,8 @@ ccio_coalesce_chunks(struct ioc *ioc, st
 		*/
 		dma_sg = vcontig_sg = startsg;
 		dma_len = vcontig_len = vcontig_end = startsg->length;
-		vcontig_end += (unsigned long) startsg->address;
-		dma_offset = (unsigned long) startsg->address & ~IOVP_MASK;
+		vcontig_end += (unsigned long) sg_virt_address(startsg);
+		dma_offset = (unsigned long) sg_virt_address(startsg) & ~IOVP_MASK;
 
 		/* PARANOID: clear entries */
 		sg_dma_address(startsg) = 0;
@@ -893,7 +893,7 @@ ccio_coalesce_chunks(struct ioc *ioc, st
 			unsigned long startsg_end;
 
 			startsg++;
-			startsg_end = (unsigned long)startsg->address + 
+			startsg_end = (unsigned long)sg_virt_address(startsg) + 
 				startsg->length;
 
 			/* PARANOID: clear entries */
@@ -912,7 +912,7 @@ ccio_coalesce_chunks(struct ioc *ioc, st
 			/*
 			** Append the next transaction?
 			*/
-			if(vcontig_end == (unsigned long) startsg->address) {
+			if(vcontig_end == (unsigned long) sg_virt_address(startsg)) {
 				vcontig_len += startsg->length;
 				vcontig_end += startsg->length;
 				dma_len     += startsg->length;
@@ -981,7 +981,8 @@ ccio_map_sg(struct pci_dev *dev, struct 
 
 	/* Fast path single entry scatterlists. */
 	if(nents == 1) {
-		sg_dma_address(sglist)= ccio_map_single(dev, sglist->address,
+		sg_dma_address(sglist)= ccio_map_single(dev,
+							sg_virt_address(sglist),
 							sglist->length, 
 							direction);
 		sg_dma_len(sglist)= sglist->length;
@@ -1043,7 +1044,7 @@ ccio_unmap_sg(struct pci_dev *dev, struc
 	ioc = GET_IOC(dev);
 
 	DBG_RUN_SG("%s() START %d entries,  %p,%x\n",
-		__FUNCTION__, nents, sglist->address, sglist->length);
+		__FUNCTION__, nents, sg_virt_address(sglist), sglist->length);
 
 #ifdef CONFIG_PROC_FS
 	ioc->usg_calls++;


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Hi,

I've tracked down my bootproblems on a c3k with kernel 2.5.4x (e.g. 2.5.47-pa8)
to the functions
  pdc_suspend_usb()				[in arch/parisc/kernel/inventory.c]
and
  pdc_pci_irt_size(&num_entries, 0);  [in drivers/parisc/iosapic.c]
which are both defined in firmware.c and work without problems in the 2.4 kernels.

Anybody has an idea what's going on here ?

Helge


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Hi,

first I got that far:

--- 8< 8< 8< ---
....
STI GSC/PCI graphics driver version 0.9
STI byte mode ROM at f4000000, hpa at f4000000
STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071A_Z
STI word mode ROM at f0025000, hpa at f8000000
STI id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1280

Stack Dump:
 10034780:  0004ff0f 00000000 00000000 00000000
 10034770:  00000000 10143b28 00000000 00000000
 10034760:  00000000 00000000 80000000 00000000
 10034750:  102ac010 00000066 1036393c 00000000
 10034740:  102ac010 00000000 00000000 00000000
 10034730:  00000000 101f6aec 00000000 00000000
 10034720:  00000000 1036fea0 00000188 00000000
 10034710:  00000000 10360810 10360010 00000000
 10034700:  00000000 00000000 00000000 00000000
 100346f0:  00000000 101c531c 00000000 00000000
 100346e0:  00000000 00000000 00000000 00000000
 100346d0:  00000000 1036072c 00000000 00000000

Kernel addresses on the stack:
 [<10143b28>]  [<101f6aec>]  [<101c531c>]  [<101c5410>]
 [<101c531c>]  [<1010d2fc>]  [<101c5af8>]  [<1010d2fc>]
 [<10147928>]  [<101ace68>]  [<10143db8>]  [<10126c04>]
 [<10143f70>]  [<101f490c>]  [<101f4380>]  [<10147928>]
 [<101c55b4>]  [<101c9c84>]  [<10143db8>]  [<101f33c8>]
 [<101002b8>]  [<10109c54>]

Kernel Fault: Code=26 regs=10034780 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 00000400 1036393c 00002000
r04-07  00000066 1036393c 00000000 15f7cc00
r08-11  10367010 10029c60 000000a0 000000a0
r12-15  00000140 00000040 00005000 00000000
r16-19  10034488 15f45000 1036072c 00000000
r20-23  00000013 00000000 10029c60 00000000
r24-27  00000000 00000000 00000040 10288010
r28-31  00000500 00000400 10034780 101fa578
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101fa59c 101fa5a0
 IIR: 0ea01096    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 10034000 CR31: 102b2000
 ORIG_R28: 00000000
--- 8< 8< 8< ---



then I added some printk's to see where it actually happens and
I got that far:

--- 8< 8< 8< ---
...
STI GSC/PCI graphics driver version 0.9
STI byte mode ROM at f4000000, hpa at f4000000
STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
Stack Dump:
--- 8< 8< 8< ---

so I added some more printk's and got *suprise* that far:

--- 8< 8< 8< ---
...
STI GSC/PCI graphics driver version 0.9
Stack Dump:
--- 8< 8< 8< ---


How to debug this one ???


-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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> How to debug this one ???

take a look at http://www.parisc-linux.org/faq/kernelbug-howto.html

for 2.5, if you are doing native compiles, you can also turn on
CONFIG_KALLSYMS to make the stack dump a bit more useful.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> 
> Do I wrongly build glibc or install?

apt-get update; apt-get upgrade;

And you hppa box should have 2.3.1-5 :)

c. 


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>> Do I wrongly build glibc or install?
>
>apt-get update; apt-get upgrade;
>
>And you hppa box should have 2.3.1-5 :)
>
Well Ok (I would just figure out how to complete toolchain before installing
glibc-2.3.1 :()

Thanks,
    Joel


********************************************************************************
Controlez mieux votre consommation Internet...surfez Tiscali Complete...http://tiscali.complete.be




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This message is in MIME format. Since your mail reader does not understand
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> -----Original Message-----
> From: James Smith [mailto:james@compusmithllc.com]
> I just got a pile of 712/60's - $80 for 10 of em :)

I got mine (1 and a half) for free ;-)

> i've set one up & now i'm going through the disks one at a time &
> cloning them as its quicker than going through the install each time
> i've hit one disk that gives me this whenever i try to fdisk it 
> 
> sixty:~# fdisk /dev/sdb
> 
> Unable to read /dev/sdb
> 
> 
> when i tried to zero the disk, i got this....
> 
> sixty:~# dd if=/dev/zero of=/dev/sdb count=1 bs=512 
> dd: writing `/dev/sdb': Input/output error
> 1+0 records in
> 0+0 records out

So you cannot read and cannot write to it.

> 
> the console sees the disk when i use search 
> 
> does this indicate a dead disk?
> 
> the disk was ok until i put it into a mac......

What where the results on the mac? Can you clone the disks using a mac? If
so, what are the results?

My experience: the 712 I have at home was my workhorse for over 5 years. It
never failed on me. Occasional reboots for obvious reasons never had any
problems. However, after being down for a couple of weeks, the harddisk does
not spin properly. It was reported with several of those older systems. The
ioscan and other tools that only access the firmware of the drive report no
problems. Actual access of the disk is a problem since (in my case) the disk
does not spin at all.

If you can access the data storage using your mac, you might have success
after warming the device. I know the powersupply in the 712 series is
limited and might not provide enough power to start a cold disk. You might
be able to clone disks using your mac.

In an disk array, I have a couple of disks that are all the same specs.
However, due to a hardware defect in one of them, a (HP-UX) `ioscan` reports
0 bytes for that disk where others report their actual value. If you hook
the disk to an HP-UX machine, what does `ioscan` report?

Sorry to say but I think your disk is dead

Success

CBee

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charset=3Diso-8859-1">
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5.5.2654.45">
<TITLE>RE: [parisc-linux] Disk problems</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: James Smith [<A =
HREF=3D"mailto:james@compusmithllc.com">mailto:james@compusmithllc.com</=
A>]</FONT>
<BR><FONT SIZE=3D2>&gt; I just got a pile of 712/60's - $80 for 10 of =
em :)</FONT>
</P>

<P><FONT SIZE=3D2>I got mine (1 and a half) for free ;-)</FONT>
</P>

<P><FONT SIZE=3D2>&gt; i've set one up &amp; now i'm going through the =
disks one at a time &amp;</FONT>
<BR><FONT SIZE=3D2>&gt; cloning them as its quicker than going through =
the install each time</FONT>
<BR><FONT SIZE=3D2>&gt; i've hit one disk that gives me this whenever i =
try to fdisk it </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; sixty:~# fdisk /dev/sdb</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Unable to read /dev/sdb</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; when i tried to zero the disk, i got =
this....</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; sixty:~# dd if=3D/dev/zero of=3D/dev/sdb =
count=3D1 bs=3D512 </FONT>
<BR><FONT SIZE=3D2>&gt; dd: writing `/dev/sdb': Input/output =
error</FONT>
<BR><FONT SIZE=3D2>&gt; 1+0 records in</FONT>
<BR><FONT SIZE=3D2>&gt; 0+0 records out</FONT>
</P>

<P><FONT SIZE=3D2>So you cannot read and cannot write to it.</FONT>
</P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; the console sees the disk when i use search =
</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; does this indicate a dead disk?</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; the disk was ok until i put it into a =
mac......</FONT>
</P>

<P><FONT SIZE=3D2>What where the results on the mac? Can you clone the =
disks using a mac? If so, what are the results?</FONT>
</P>

<P><FONT SIZE=3D2>My experience: the 712 I have at home was my =
workhorse for over 5 years. It never failed on me. Occasional reboots =
for obvious reasons never had any problems. However, after being down =
for a couple of weeks, the harddisk does not spin properly. It was =
reported with several of those older systems. The ioscan and other =
tools that only access the firmware of the drive report no problems. =
Actual access of the disk is a problem since (in my case) the disk does =
not spin at all.</FONT></P>

<P><FONT SIZE=3D2>If you can access the data storage using your mac, =
you might have success after warming the device. I know the powersupply =
in the 712 series is limited and might not provide enough power to =
start a cold disk. You might be able to clone disks using your =
mac.</FONT></P>

<P><FONT SIZE=3D2>In an disk array, I have a couple of disks that are =
all the same specs. However, due to a hardware defect in one of them, a =
(HP-UX) `ioscan` reports 0 bytes for that disk where others report =
their actual value. If you hook the disk to an HP-UX machine, what does =
`ioscan` report?</FONT></P>

<P><FONT SIZE=3D2>Sorry to say but I think your disk is dead</FONT>
</P>

<P><FONT SIZE=3D2>Success</FONT>
</P>

<P><FONT SIZE=3D2>CBee</FONT>
</P>

</BODY>
</HTML>
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I had a 712/100 at work that we (ok I) modified to take 2 internal disks and it ran well even though it got extremely hot inside since the 712 wasn't designed for efficiant cooling.  I was using 2 C2490s in it, but quit doing so because of the heat and also moved one of the disks to an external chassis.  The mod was done by using the internal SCSI cable of a 715 and removing the floppy drive.  Not a recommended solution, but the 712 power supply seemed to be able to keep up.
 "Beerse,_Corn" <c.beerse@torex-hiscom.nl> wrote:
> -----Original Message----- 
> From: James Smith [mailto:james@compusmithllc.com] 
> I just got a pile of 712/60's - $80 for 10 of em :) 

I got mine (1 and a half) for free ;-) 

> i've set one up & now i'm going through the disks one at a time & 
> cloning them as its quicker than going through the install each time 
> i've hit one disk that gives me this whenever i try to fdisk it 
> 
> sixty:~# fdisk /dev/sdb 
> 
> Unable to read /dev/sdb 
> 
> 
> when i tried to zero the disk, i got this.... 
> 
> sixty:~# dd if=/dev/zero of=/dev/sdb count=1 bs=512 
> dd: writing `/dev/sdb': Input/output error 
> 1+0 records in 
> 0+0 records out 

So you cannot read and cannot write to it. 

> 
> the console sees the disk when i use search 
> 
> does this indicate a dead disk? 
> 
> the disk was ok until i put it into a mac...... 

What where the results on the mac? Can you clone the disks using a mac? If so, what are the results? 

My experience: the 712 I have at home was my workhorse for over 5 years. It never failed on me. Occasional reboots for obvious reasons never had any problems. However, after being down for a couple of weeks, the harddisk does not spin properly. It was reported with several of those older systems. The ioscan and other tools that only access the firmware of the drive report no problems. Actual access of the disk is a problem since (in my case) the disk does not spin at all.

 

****This is exactly why we as HP techs don't shutdown any external disks while trouble shooting unless absolutely necessary.  Disks failing to spin back up after being run for so long is a very comman occurance.  Usually its due to the disk being heat soaked after the system fans shut off.  Even though the disks stop producing heat after the power is off the fans stop cooling them.  The resulting heat soak can sometimes prevent the drive from spinning up.

****If you do have access to an HPUX system, a diskinfo -v /dev/rdsk/cXtXdX command would probably be better to use than an ioscan.  If the diskinfo comes back with something like "cannot access," then the drive controller board is dead.  If it comes back with a response with Obytes for the drive size than it means the drive controller is working, but the drive has stopped spinning.

 

derek



---------------------------------
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<P>I had a 712/100 at work that we (ok I) modified to take 2 internal disks and it ran well even though it got extremely hot inside since the 712 wasn't designed for efficiant cooling.&nbsp; I was using 2 C2490s in it, but quit doing so because of the heat and also moved one of the disks to an external chassis.&nbsp; The mod was done by using the internal SCSI cable of a 715 and removing the floppy drive.&nbsp; Not a recommended solution, but the 712 power supply seemed to be able to keep up.
<P>&nbsp;<B><I>"Beerse,_Corn" &lt;c.beerse@torex-hiscom.nl&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px"><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<META content="MS Exchange Server version 5.5.2654.45" name=Generator>
<P><FONT size=2>&gt; -----Original Message-----</FONT> <BR><FONT size=2>&gt; From: James Smith [<A href="mailto:james@compusmithllc.com">mailto:james@compusmithllc.com</A>]</FONT> <BR><FONT size=2>&gt; I just got a pile of 712/60's - $80 for 10 of em :)</FONT> </P>
<P><FONT size=2>I got mine (1 and a half) for free ;-)</FONT> </P>
<P><FONT size=2>&gt; i've set one up &amp; now i'm going through the disks one at a time &amp;</FONT> <BR><FONT size=2>&gt; cloning them as its quicker than going through the install each time</FONT> <BR><FONT size=2>&gt; i've hit one disk that gives me this whenever i try to fdisk it </FONT><BR><FONT size=2>&gt; </FONT><BR><FONT size=2>&gt; sixty:~# fdisk /dev/sdb</FONT> <BR><FONT size=2>&gt; </FONT><BR><FONT size=2>&gt; Unable to read /dev/sdb</FONT> <BR><FONT size=2>&gt; </FONT><BR><FONT size=2>&gt; </FONT><BR><FONT size=2>&gt; when i tried to zero the disk, i got this....</FONT> <BR><FONT size=2>&gt; </FONT><BR><FONT size=2>&gt; sixty:~# dd if=/dev/zero of=/dev/sdb count=1 bs=512 </FONT><BR><FONT size=2>&gt; dd: writing `/dev/sdb': Input/output error</FONT> <BR><FONT size=2>&gt; 1+0 re
 cords in</FONT> <BR><FONT size=2>&gt; 0+0 records out</FONT> </P>
<P><FONT size=2>So you cannot read and cannot write to it.</FONT> </P>
<P><FONT size=2>&gt; </FONT><BR><FONT size=2>&gt; the console sees the disk when i use search </FONT><BR><FONT size=2>&gt; </FONT><BR><FONT size=2>&gt; does this indicate a dead disk?</FONT> <BR><FONT size=2>&gt; </FONT><BR><FONT size=2>&gt; the disk was ok until i put it into a mac......</FONT> </P>
<P><FONT size=2>What where the results on the mac? Can you clone the disks using a mac? If so, what are the results?</FONT> </P>
<P><FONT size=2>My experience: the 712 I have at home was my workhorse for over 5 years. It never failed on me. Occasional reboots for obvious reasons never had any problems. However, after being down for a couple of weeks, the harddisk does not spin properly. It was reported with several of those older systems. The ioscan and other tools that only access the firmware of the drive report no problems. Actual access of the disk is a problem since (in my case) the disk does not spin at all.</FONT></P>
<P>&nbsp;</P>
<P>****This is exactly why we as HP techs don't shutdown any external disks while trouble shooting unless absolutely necessary.&nbsp; Disks failing to spin back up after being run for so long is a very comman occurance.&nbsp; Usually its due to the disk being heat soaked after the system fans shut off.&nbsp; Even though the disks stop producing heat after the power is off the fans stop cooling them.&nbsp; The resulting heat soak can sometimes prevent the drive from spinning up.</P>
<P>****If you do have access to an HPUX system, a diskinfo -v /dev/rdsk/cXtXdX command would probably be better to use than an ioscan.&nbsp; If the diskinfo comes back with something like "cannot access," then the drive controller board is dead.&nbsp; If it comes back with a response with Obytes for the drive size than it means the drive controller is working, but the drive has stopped spinning.</P>
<P>&nbsp;</P>
<P>derek</P></BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
<a href="http://rd.yahoo.com/mail/mailsig/*http://mailplus.yahoo.com">Yahoo! Mail Plus</a> - Powerful. Affordable. <a href="http://rd.yahoo.com/mail/mailsig/*http://mailplus.yahoo.com">Sign up now</a>
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Hi all,

Starting to investigate squid problem (having tree different behaviour between
my install), I try to boot my sarge b180 with my test k-2.4.20-rc1-pa7 (booting
well my b2k) but it failled with following messages:
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 19, function 0
sym53c8xx: 53c875 detected 
sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 99
sym53c875-0: ID 7, Fast-20, Parity Checking
scsi0 : sym53c8xx-1.7.3c-20010512
blk: queue 1003d774, I/O limit 4095Mb (mask 0xffffffff)
  Vendor: IBM       Model: DDRS-39130WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
blk: queue 1003d874, I/O limit 4095Mb (mask 0xffffffff)
  Vendor: IBM       Model: DDRS-39130WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
blk: queue 1003d974, I/O limit 4095Mb (mask 0xffffffff)
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
sym53c875-0-<5,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
Partition check:
 sda:scsi : aborting command due to timeout : pid 38, scsi0, channel 0, id
5, lun 0 0x28 00 00 00 00 00 00 00 08 00 
sym53c8xx_abort: pid=38 serial_number=39 serial_number_at_timeout=39

Any idea.

Thanks in advance,
    Joel

PS: I used sym1 as scsi device driver

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>Hi all,
>
>Starting to investigate squid problem (having tree different behaviour between
>my install), I try to boot my sarge b180 with my test k-2.4.20-rc1-pa7 (booting
>well my b2k) but it failled with following messages:
>SCSI subsystem driver Revision: 1.00
>sym53c8xx: at PCI bus 0, device 19, function 0
>sym53c8xx: 53c875 detected 
>sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 99
>sym53c875-0: ID 7, Fast-20, Parity Checking
>scsi0 : sym53c8xx-1.7.3c-20010512
>blk: queue 1003d774, I/O limit 4095Mb (mask 0xffffffff)
>  Vendor: IBM       Model: DDRS-39130WS      Rev: HP01
>  Type:   Direct-Access                      ANSI SCSI revision: 02
>blk: queue 1003d874, I/O limit 4095Mb (mask 0xffffffff)
>  Vendor: IBM       Model: DDRS-39130WS      Rev: HP01
>  Type:   Direct-Access                      ANSI SCSI revision: 02
>blk: queue 1003d974, I/O limit 4095Mb (mask 0xffffffff)
>53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
>scsi1: 53c710 rev 2 
>scsi1 : LASI SCSI 53c700
>Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
>Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
>sym53c875-0-<5,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
>SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
>Partition check:
> sda:scsi : aborting command due to timeout : pid 38, scsi0, channel 0,
id
>5, lun 0 0x28 00 00 00 00 00 00 00 08 00 
>sym53c8xx_abort: pid=38 serial_number=39 serial_number_at_timeout=39
>
>Any idea.
>
>Thanks in advance,
>    Joel
>
>PS: I used sym1 as scsi device driver
>

PS: Same results with sym2 ???


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maybe i'm a buit thick, but are you saying the 'anti spam' message is
spam or my message is spam?


i'd have thought using a spam filter on a members only list was a bit
redundant anyway.....

oh well


James S




On Fri, 2002-11-22 at 19:18, John David Anglin wrote:
> > > can anybody tell me why i've been barred ?
> 
> Don't bother.  The message is spam.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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To: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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its the original seagate disk that came with it

the disk still works in the mac, so its not dead

i dont have anything other than macs & the workstations that are scsi

would a low level format on the mac do the same as low level using an
adaptec card ?

James S




On Fri, 2002-11-22 at 20:52, Derek Engelhaupt wrote:
> 
> Well quit putting them in those darn macs....just kidding.  Who makes the disk?  IBM has certain tools like their drive fitness tests that has saved me a few times.  Seagate and others probably have similar tools.  Check their support sites and it may just be a matter of the wrong block size written by your mac.  IBM drives are especially notorious for having weird block sizes and such.
> derek
>  James Smith <james@compusmithllc.com> wrote:I just got a pile of 712/60's - $80 for 10 of em :)
> 
> 
> i've set one up & now i'm going through the disks one at a time &
> cloning them as its quicker than going through the install each time
> 
> 
> i've hit one disk that gives me this whenever i try to fdisk it 
> 
> 
> sixty:~# fdisk /dev/sdb
> 
> Unable to read /dev/sdb
> 
> 
> when i tried to zero the disk, i got this....
> 
> sixty:~# dd if=/dev/zero of=/dev/sdb count=1 bs=512 
> dd: writing `/dev/sdb': Input/output error
> 1+0 records in
> 0+0 records out
> 
> the console sees the disk when i use search 
> 
> does this indicate a dead disk?
> 
> the disk was ok until i put it into a mac......
> 
> James S
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
> ---------------------------------
> Do you Yahoo!?
> Yahoo! Mail Plus - Powerful. Affordable. Sign up now




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Hi James,

Sorry in advance if you already do it,

>
>its the original seagate disk that came with it
>
>the disk still works in the mac, so its not dead
>
>i dont have anything other than macs & the workstations that are scsi
>
>would a low level format on the mac do the same as low level using an
>adaptec card ?
>
Don't you still have a hpux support+ cd to boot on it and test your disk
with ODE?

[I encounter a strange problem which I do not yet fix:
I used a data disk which crashed and replaced by HP but new FW release. When
I put it back in my scsi chain, I was unable to use: a lot of scsi reset.
OTC when I chek it on a hpux box no problem as well if I connect it alone
to my hppalinux box ?]

Regards,
    Joel


********************************************************************************
Controlez mieux votre consommation Internet...surfez Tiscali Complete...http://tiscali.complete.be




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> maybe i'm a buit thick, but are you saying the 'anti spam' message is
> spam or my message is spam?

The message is generated by a list subscriber.  When you post to the
list, the subscriber sends the 'anti spam' message back directly to
the poster.

The returned messages are designed to cause confusion.

> i'd have thought using a spam filter on a members only list was a bit
> redundant anyway.....

A spam filter is useless because the message never passes thorugh the
server.  As far as I can see, the only way to find the subscriber is
to send test messages to each subscriber one by one and see if a
'anti spam' message is returned.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> would a low level format on the mac do the same as low level using an
> adaptec card ?

If it works in a mac, the low-level formatting is probably ok.  It's
most likely the data in block 0 or possibly some of the vendor info
that's the problem.  You should also examine all switch settings and
check that the termination is correct.

Erase disk in the finder doesn't do a low-level format.  It just builds
a new file systems.  Various tools from Adaptec (FWB HDT) and other
vendors are available to do low-level formats on the Mac.  The Sedit
program can probably issue a command to format the drive but I would
only do this as a last resort.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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jsoe0708@tiscali.be wrote:
> [I encounter a strange problem which I do not yet fix:
> I used a data disk which crashed and replaced by HP but new FW release. When
> I put it back in my scsi chain, I was unable to use: a lot of scsi reset.
> OTC when I chek it on a hpux box no problem as well if I connect it alone
> to my hppalinux box ?]

upgrading firmware should never result in lots of scsi resets.
Sounds more like a problem with the HW configuration.
Check SCSI IDs, cable lengths, and termination.

grant


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Subject: Re: [parisc-linux] [PATCH] highmem_io for the sym53c8xx_2 driver??
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Thanks Grant!

I will look look at this and try this out later this week after I get
back!

Nice catch.

- Ryan


On Sat, 2002-11-23 at 19:43, Grant Grundler wrote:
> Ryan Bradetich wrote:
> > I am not sure what the highmem_io flag does, but when it is enabled it
> > causes my C200 to HPMC.
> 
> yeah - ccio-dma.c isn't using sg_virt_address() to access to the virtual
> address of an SG list entry. It's defined in include/asm/scatterlist.h.
> See sba_iommu.c on how to use this correctly.
> 
> Attached diff is a first cut, untested. My advice is to rewrite the
> loop so sg_virt_address() result is saved once instead of referencing
> the macro 3 (or more) times in the main loop.
> 
> grant
> 
> 
> Index: ccio-dma.c
> ===================================================================
> RCS file: /var/cvs/linux/arch/parisc/kernel/ccio-dma.c,v
> retrieving revision 1.56
> diff -u -p -r1.56 ccio-dma.c
> --- ccio-dma.c	17 Nov 2002 20:44:11 -0000	1.56
> +++ ccio-dma.c	24 Nov 2002 02:42:09 -0000
> @@ -805,7 +805,7 @@ ccio_fill_pdir(struct ioc *ioc, struct s
>  
>  		DBG_RUN_SG(" %d : %08lx/%05x %p/%05x\n", nents,
>  			   (unsigned long)sg_dma_address(startsg), cnt,
> -			   startsg->address, startsg->length
> +			   sg_virt_address(startsg), startsg->length
>  		);
>  
>  		/*
> @@ -825,7 +825,7 @@ ccio_fill_pdir(struct ioc *ioc, struct s
>  		** Look for a VCONTIG chunk
>  		*/
>  		if (cnt) {
> -			unsigned long vaddr = (unsigned long)startsg->address;
> +			unsigned long vaddr = (unsigned long)sg_virt_address(startsg);
>  			ASSERT(pdirp);
>  
>  			/* Since multiple Vcontig blocks could make up
> @@ -878,8 +878,8 @@ ccio_coalesce_chunks(struct ioc *ioc, st
>  		*/
>  		dma_sg = vcontig_sg = startsg;
>  		dma_len = vcontig_len = vcontig_end = startsg->length;
> -		vcontig_end += (unsigned long) startsg->address;
> -		dma_offset = (unsigned long) startsg->address & ~IOVP_MASK;
> +		vcontig_end += (unsigned long) sg_virt_address(startsg);
> +		dma_offset = (unsigned long) sg_virt_address(startsg) & ~IOVP_MASK;
>  
>  		/* PARANOID: clear entries */
>  		sg_dma_address(startsg) = 0;
> @@ -893,7 +893,7 @@ ccio_coalesce_chunks(struct ioc *ioc, st
>  			unsigned long startsg_end;
>  
>  			startsg++;
> -			startsg_end = (unsigned long)startsg->address + 
> +			startsg_end = (unsigned long)sg_virt_address(startsg) + 
>  				startsg->length;
>  
>  			/* PARANOID: clear entries */
> @@ -912,7 +912,7 @@ ccio_coalesce_chunks(struct ioc *ioc, st
>  			/*
>  			** Append the next transaction?
>  			*/
> -			if(vcontig_end == (unsigned long) startsg->address) {
> +			if(vcontig_end == (unsigned long) sg_virt_address(startsg)) {
>  				vcontig_len += startsg->length;
>  				vcontig_end += startsg->length;
>  				dma_len     += startsg->length;
> @@ -981,7 +981,8 @@ ccio_map_sg(struct pci_dev *dev, struct 
>  
>  	/* Fast path single entry scatterlists. */
>  	if(nents == 1) {
> -		sg_dma_address(sglist)= ccio_map_single(dev, sglist->address,
> +		sg_dma_address(sglist)= ccio_map_single(dev,
> +							sg_virt_address(sglist),
>  							sglist->length, 
>  							direction);
>  		sg_dma_len(sglist)= sglist->length;
> @@ -1043,7 +1044,7 @@ ccio_unmap_sg(struct pci_dev *dev, struc
>  	ioc = GET_IOC(dev);
>  
>  	DBG_RUN_SG("%s() START %d entries,  %p,%x\n",
> -		__FUNCTION__, nents, sglist->address, sglist->length);
> +		__FUNCTION__, nents, sg_virt_address(sglist), sglist->length);
>  
>  #ifdef CONFIG_PROC_FS
>  	ioc->usg_calls++;
> 




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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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http://www.seagate.com/support/seatools/index.html
I would try that tool.  I had a similar issue with an IBM drive and downloaded their disk test tool and the analysis of the drive fixed the issue.  This tool however only runs on Intel based systems.  Maybe a friend has a single ended SCSI card you could test with on a Winblows box?
derek
 John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:> would a low level format on the mac do the same as low level using an
> adaptec card ?

If it works in a mac, the low-level formatting is probably ok. It's
most likely the data in block 0 or possibly some of the vendor info
that's the problem. You should also examine all switch settings and
check that the termination is correct.

Erase disk in the finder doesn't do a low-level format. It just builds
a new file systems. Various tools from Adaptec (FWB HDT) and other
vendors are available to do low-level formats on the Mac. The Sedit
program can probably issue a command to format the drive but I would
only do this as a last resort.

Dave
-- 
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National Research Council of Canada (613) 990-0752 (FAX: 952-6605)
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<P><A href="http://www.seagate.com/support/seatools/index.html">http://www.seagate.com/support/seatools/index.html</A>
<P>I would try that tool.&nbsp; I had a similar issue with an IBM drive and downloaded their disk test tool and the analysis of the drive fixed the issue.&nbsp; This tool however only runs on Intel based systems.&nbsp; Maybe a friend has a single ended SCSI card you could test with on a Winblows box?
<P>derek
<P>&nbsp;<B><I>John David Anglin &lt;dave@hiauly1.hia.nrc.ca&gt;</I></B> wrote:
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">&gt; would a low level format on the mac do the same as low level using an<BR>&gt; adaptec card ?<BR><BR>If it works in a mac, the low-level formatting is probably ok. It's<BR>most likely the data in block 0 or possibly some of the vendor info<BR>that's the problem. You should also examine all switch settings and<BR>check that the termination is correct.<BR><BR>Erase disk in the finder doesn't do a low-level format. It just builds<BR>a new file systems. Various tools from Adaptec (FWB HDT) and other<BR>vendors are available to do low-level formats on the Mac. The Sedit<BR>program can probably issue a command to format the drive but I would<BR>only do this as a last resort.<BR><BR>Dave<BR>-- <BR>J. David
  Anglin dave.anglin@nrc.ca<BR>National Research Council of Canada (613) 990-0752 (FAX: 952-6605)<BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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From: Grant Grundler <grundler@dsl2.external.hp.com>
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Subject: Re: [parisc-linux] Disk problems
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Derek Engelhaupt wrote:
> If it works in a mac, the low-level formatting is probably ok. It's
> most likely the data in block 0 or possibly some of the vendor info
> that's the problem. You should also examine all switch settings and
> check that the termination is correct.

I privately speculating the nwe disk FW talks to the host differently.
ie it might disconnect/reconnect or send "msg" when the SCSI driver
is expecting something else. That at least would explain why mac or
hpux can deal with the disk but linux can't.

grant


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: [parisc-linux] Dual Video Cards?
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Anyone running dual displays on a C Class?  And if so how?  I understand it needs two video cards or one card with dual output.  Thanks.....

derek



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<P>Anyone running dual displays on a C Class?&nbsp; And if so how?&nbsp; I understand it needs two video cards or one card with dual output.&nbsp; Thanks.....</P>
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Subject: [parisc-linux] uaccess ya patch
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Hi Randolph,

Much more for info, here is another way I found to implement __put_?_asm64.

--- uaccess.h.orig	2002-11-26 10:11:56.000000000 +0100
+++ uaccess.h	2002-11-26 09:58:08.000000000 +0100
@@ -28,6 +28,11 @@
  * that put_user is the same as __put_user, etc.
  */
 
+extern int __get_kernel_bad(void);
+extern int __get_user_bad(void);
+extern int __put_kernel_bad(void);
+extern int __put_user_bad(void);
+
 #define access_ok(type,addr,size)   (1)
 #define verify_area(type,addr,size) (0)
 
@@ -35,8 +40,12 @@
 #define get_user __get_user
 
 #if BITS_PER_LONG == 32
-#define LDD_KERNEL(ptr)		BUG()
-#define LDD_USER(ptr)		BUG()
+#define LDD_KERNEL(ptr)		__get_kernel_bad();
+#define LDD_USER(ptr)		__get_user_bad();
+/*
+#define STD_KERNEL(x, ptr)	__put_kernel_bad();
+#define STD_USER(x, ptr)	__put_user_bad();
+*/
 #define STD_KERNEL(x, ptr) __put_kernel_asm64(x,ptr)
 #define STD_USER(x, ptr) __put_user_asm64(x,ptr)
 #else
@@ -75,7 +84,7 @@
 	    case 2: __get_kernel_asm("ldh",ptr); break; \
 	    case 4: __get_kernel_asm("ldw",ptr); break; \
 	    case 8: LDD_KERNEL(ptr); break;		\
-	    default: BUG(); break;                      \
+	    default: __get_kernel_bad(); break;         \
 	    }                                           \
 	}                                               \
 	else {                                          \
@@ -84,7 +93,7 @@
 	    case 2: __get_user_asm("ldh",ptr); break;   \
 	    case 4: __get_user_asm("ldw",ptr); break;   \
 	    case 8: LDD_USER(ptr);  break;		\
-	    default: BUG(); break;                      \
+	    default: __get_user_bad(); break;           \
 	    }                                           \
 	}                                               \
 							\
@@ -144,7 +153,7 @@
 	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
 	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
 	    case 8: STD_KERNEL(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: __put_kernel_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 	else {                                                  \
@@ -153,7 +162,7 @@
 	    case 2: __put_user_asm("sth",x,ptr); break;         \
 	    case 4: __put_user_asm("stw",x,ptr); break;         \
 	    case 8: STD_USER(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: __put_user_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 								\
@@ -211,45 +220,36 @@
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
 
-static inline void __put_kernel_asm64(u64 x, void *ptr)
-{
-	u32 hi = x>>32;
-	u32 lo = x&0xffffffff;
-	__asm__ __volatile__ (
-		"\n1:\tstw %1,0(%0)\n"
-		"\n2:\tstw %2,4(%0)\n"
-		"3:\n"
-		"\t.section __ex_table,\"a\"\n"
-		 "\t.word\t1b\n"
-		 "\t.word\t(3b-1b)+1\n"
-		 "\t.word\t2b\n"
-		 "\t.word\t(3b-2b)+1\n"
-		 "\t.previous"
-		: : "r"(ptr), "r"(hi), "r"(lo));
-
-}
-
-static inline void __put_user_asm64(u64 x, void *ptr)
-{
-	u32 hi = x>>32;
-	u32 lo = x&0xffffffff;
-	__asm__ __volatile__ (
-		"\n1:\tstw %1,0(%%sr3,%0)\n"
-		"\n2:\tstw %2,4(%%sr3,%0)\n"
-		"3:\n"
-		"\t.section __ex_table,\"a\"\n"
-		 "\t.word\t1b\n"
-		 "\t.word\t(3b-1b)+1\n"
-		 "\t.word\t2b\n"
-		 "\t.word\t(3b-2b)+1\n"
-		 "\t.previous"
-		: : "r"(ptr), "r"(hi), "r"(lo));
+#define __put_kernel_asm64(x, ptr)		\
+	__asm__ __volatile__ (			\
+		"\n1:\tstw\t%2,0(%1)\n"		\
+		"2:\tstw\t%R2,4(%1)\n"		\
+		"3:\n"				\
+		"\t.section __ex_table,\"a\"\n"	\
+		 "\t.word\t1b\n"		\
+		 "\t.word\t(3b-1b)+1\n"		\
+		 "\t.word\t2b\n"		\
+		 "\t.word\t(3b-2b)+1\n"		\
+		 "\t.previous"			\
+		: "=r"(__pu_err)		\
+		: "r"(ptr), "r"(x), "0"(__pu_err))
 
-}
+#define __put_user_asm64(x, ptr)		\
+	__asm__ __volatile__ (			\
+		"\n1:\tstw\t%2,0(%%sr3,%1)\n"	\
+		"2:\tstw\t%R2,4(%%sr3,%1)\n"	\
+		"3:\n"				\
+		"\t.section __ex_table,\"a\"\n"	\
+		 "\t.word\t1b\n"		\
+		 "\t.word\t(3b-1b)+1\n"		\
+		 "\t.word\t2b\n"		\
+		 "\t.word\t(3b-2b)+1\n"		\
+		 "\t.previous"			\
+		: "=r"(__pu_err)		\
+		: "r"(ptr), "r"(x), "0"(__pu_err))
 
 #endif
 
-
 /*
  * Complex access routines -- external declarations
  */

Cheers,
    Joel

********************************************************************************
Controlez mieux votre consommation Internet...surfez Tiscali Complete...http://tiscali.complete.be



--=========3DAAAD46000048D6/mail.tiscali.be
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>
>yeah - ccio-dma.c isn't using sg_virt_address() to access to the virtual
>address of an SG list entry. It's defined in include/asm/scatterlist.h.
>See sba_iommu.c on how to use this correctly.
>
>Attached diff is a first cut, untested. My advice is to rewrite the
>loop so sg_virt_address() result is saved once instead of referencing
>the macro 3 (or more) times in the main loop.
>
Hey Grant,

Am I wrong or sg_virt_address() should be called sg_virt_addr()?

Joel

********************************************************************************
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Hi parisc-hackers,

After quite a long time I upgraded my kernel from linux-2.4.19-pa2 (mid of
August) to CVS of yesterday, 22:00 GMT (linux-2.4.20-rc1-pa7). Both times
32bit kernels, compiled with gcc-3.0.4. I'm using the serial console.

Please note that using the new kernel I also followed grant's tip for C2xx:

> arch/parisc/kernel/ccio-dma.c: unmodified: line 169 of 1615 [10%].
>
> /* Ratio of Host MEM to IOV Space size */
> static unsigned long ccio_mem_ratio = 4;
>
> replace 4 with 2.

Is this modification still required for 2.5? Can't this be automatically
determined?



Anyway, I still have the same problem:

I try to use a Voodoo3 3000 (with XFree86-4.2.0) in my C240! (just typing "X"
as root in the console and hope for a check-pattern background to come up).

Last time (I posted it on the p-l mailing list) the kernel reported something
like "LASI barks" and caused a HPMC. Unfortunately I didn't report a "ser pim"
for the HPMC.


BUT:
----
With the new kernel the doesn't cause a HPMC anymore; now the kernel OOPSes
and hangs. I don't know whether this counts as an success or not :-/
Also no ping is replied, so the kernel really crashed. I don't know whether
a "ser pim" makes sense after a kernel oops or just after a HPMC, but I
attached the output anyway.

I did not update any debian packages or anything in the hardware configuration
(not even the software configuration) since my last error-report, so the
changes in the behaviour of the bug are ONLY due to the new kernel!

Anyway, I attached (twice) the output of the oops and "ser pim", along with my
XF86Config-4. Due to the large size of the files, kernel configuration
is found at http://www.cs.ucc.ie/~xam/config-2.4.20-rc1-pa7 and System-map
is found at http://www.cs.ucc.ie/~xam/System.map-2.4.20-rc1-pa7 .
The first time I forgot to attach the PS2-keyboard and -mouse (but a
kernel oops nevertheless), and the second time I tried again to start X,
this time with keyboard and mouse attached (again a kernel oops).

any help appreciated!

hope this helps,
  greetings max


PS: I noticed with the new kernel that the C240 now changes eth0 to 100Mbit
    full-duplex on boot (quite often, but not always). With the old kernel this
    was VERY rare (only 10Mbit full-duplex. This is also what the network card
    selects automatically before the linux kernel changes it on boot.)
    Still unplugging and re-plugging of the network cable doesn't change it
    from 10MBit to 100MBit once the kernel has booted.

    Also the Sym2 SCSI driver seems to be more stable than Sym1. At least I
    don't get the "SCSI target X suffered from tag starvation" anymore, which
    I used to get from time to time with Sym1 (btw, I replaced the
    4GB Ultra-SCSI with a 18GB Fast-SCSI when I got my C240, so I don't know
    whether this problem is/was just related to Fast-SCSI. The termination
    and cable are okay, and the HDD is working fine in my Alpha and my SPARC).

PPS: looking around in the linux-2.5 kernel options I wondered where the
     harmony sound driver has gone ...

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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] Re: uaccess ya patch
Date: Tue, 26 Nov 2002 08:29:38 -0800
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> Much more for info, here is another way I found to implement __put_?_asm64.

Joel, the __*_bad stuff is fine, but why do you want to rewrite the
asm64 functions as macros? you are also not doing it correctly:

> +#define __put_user_asm64(x, ptr)		\
> +	__asm__ __volatile__ (			\
> +		"\n1:\tstw\t%2,0(%%sr3,%1)\n"	\
> +		"2:\tstw\t%R2,4(%%sr3,%1)\n"	\
                  ^^^ this will cause very bad things to happen.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: "Yves Bodack" <bodack@stud.fh-heilbronn.de>
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From: "Derek Engelhaupt" <derekengelhaupt@rocketmail.com>
Subject: RE: [parisc-linux] Disk problems

>I had a 712/100 at work that we (ok I) modified to take 2 internal disks
and it ran
> well even though it got extremely hot inside since the 712 wasn't designed
for
> efficiant cooling.  I was using 2 C2490s in it, but quit doing so because
of the
> heat and also moved one of the disks to an external chassis.  The mod was
done by
> using the internal SCSI cable of a 715 and removing the floppy drive.  Not
a
> recommended solution, but the 712 power supply seemed to be able to keep
up.

This is definitively NOT recommended. I tried this in a 712/60 and almost
lost one of the disks. Powerer supply wasn't strong enough to spinn up 2
disks, and a varistor blow up.

Greetings, Yves...




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>> Much more for info, here is another way I found to implement __put_?_asm64.
>
>Joel, the __*_bad stuff is fine, but why do you want to rewrite the
>asm64 functions as macros? you are also not doing it correctly:
>
>> +#define __put_user_asm64(x, ptr)		\
>> +	__asm__ __volatile__ (			\
>> +		"\n1:\tstw\t%2,0(%%sr3,%1)\n"	\
>> +		"2:\tstw\t%R2,4(%%sr3,%1)\n"	\
>                  ^^^ this will cause very bad things to happen.

It was much more to mentionned that in asm extension of gcc for hppa it exists
also a way to address the second word (what I tried to find for a long) of
a long long via the 'R' prefix as here in '%R2' [is it what you want to say
'will cause bad things'?]

(the macro was just beacuse the original __put_?_asm() was macro :) )

Well it has not more interest and for me you can forget it.

Thanks for your attention,
    Joel




********************************************************************************
Controlez mieux votre consommation Internet...surfez Tiscali Complete...http://tiscali.complete.be




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> It was much more to mentionned that in asm extension of gcc for hppa it exists
> also a way to address the second word (what I tried to find for a long) of
> a long long via the 'R' prefix as here in '%R2' [is it what you want to say
> 'will cause bad things'?]

maybe you are thinking of floating point registers? %r2 is general
register number 2, i.e. the return pointer.  it is not what you want to
store into memory.

> (the macro was just beacuse the original __put_?_asm() was macro :) )

well, it was an inline function for a reason -- to avoid nasty casts.
the macro as you've defined it will probably cause a lot of warnings.

randolph


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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> > It was much more to mentionned that in asm extension of gcc for hppa it exists
> > also a way to address the second word (what I tried to find for a long) of
> > a long long via the 'R' prefix as here in '%R2' [is it what you want to say
> > 'will cause bad things'?]
> 
> maybe you are thinking of floating point registers? %r2 is general
> register number 2, i.e. the return pointer.  it is not what you want to
> store into memory.

The 'R' operand code selects the second half of a register pair.  So
'%R2' refers to the second half of operand 2 in the asm.  Look at
print_operand in pa.c to see the available codes for asms.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > maybe you are thinking of floating point registers? %r2 is general
> > register number 2, i.e. the return pointer.  it is not what you want to
> > store into memory.
> 
> The 'R' operand code selects the second half of a register pair.  So
> '%R2' refers to the second half of operand 2 in the asm.  Look at
> print_operand in pa.c to see the available codes for asms.

oh, i see, somehow i thought %R2 == %r2...

i guess if a 64-bit number is always passed in a way that we can access
the first half as %1 and the second half as %1R then we can do away with
the masking.... 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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jsoe0708@tiscali.be wrote:
> Am I wrong or sg_virt_address() should be called sg_virt_addr()?

you've got it right.

grant


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> i guess if a 64-bit number is always passed in a way that we can access
> the first half as %1 and the second half as %1R then we can do away with
> the masking.... 

That should be %R1.  The form %1R is what you might use to select the
right half of a floating point register.  In this, the R is just a
regular character.  When the R follows the % character, it is an
operand modifier.

GCC always uses consecutive registers for objects larger than a word,
at least in the initial rtl generation.  It is possible to split large
modes after reload for better register utilization but we don't
currently do it on the PA.

I have been working in the last few days on improving support for
non-consecutive groups of registers.  At the moment, they are just
used for function arguments and return values.  The hppa64 port
currently returns incorrectly justified small structures and we need
some enhancement to the current register group support to fix this..

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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when i'm doing the disk cloning i'm actually using 2 workstations to
power the drives separately & a scsi cable long enough to reach both
disks, so i dont think its a spin up issue

James S

 


> > recommended solution, but the 712 power supply seemed to be able to keep
> up.
> 
> This is definitively NOT recommended. I tried this in a 712/60 and almost
> lost one of the disks. Powerer supply wasn't strong enough to spinn up 2
> disks, and a varistor blow up.
> 
> Greetings, Yves...
> 




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> when i'm doing the disk cloning i'm actually using 2 workstations to
> power the drives separately & a scsi cable long enough to reach both
> disks, so i dont think its a spin up issue

On old drives, you can hear them spin up.  When they reach operational
speed, there is usually a click when the heads are released followed by
some head motion (thermal calibration).  If you don't hear the click,
then the drive is probably not spinning up.  Seagates have a jumper that
controls whether the drive requires a scsi command to start or not.  The
default jumper setting is to start at power on.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Mon, Nov 25, 2002 at 08:09:20PM -0800, ext Derek Engelhaupt wrote:

> Anyone running dual displays on a C Class?  And if so how?  I 
> understand it needs two video cards or one card with dual output.  
> Thanks.....

Well, I have both a VIS-EG/PCI and a VIS-EG/GSC in a C360, but it's 
running HP-UX and not Linux. 

Hardware-wise it isn't a problem, even though the GSC card isn't 
officially supported in a C360. You might want to check the boot 
consols config though, diagnosing display problems with that during boot 
isn't fun without a serial console. And if you want to have a graphics 
console, do mind the slot designations ... I wouldn't try to make the GSC 
card the console in the C360, for example.

Don't know how you'd go about configuring those in Linux though. In HP-UX 
it's rather simple but that doesn't help much...


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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Subject: Re: FW: RE: [parisc-linux] 2.4.20-rc1-pa7 boot problem on b180
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Hi grant,

>
>jsoe0708@tiscali.be wrote:
>> Hi Grant,
>> 
>> Could it be related to your patch in msg:
>> http://lists.parisc-linux.org/pipermail/parisc-linux/2002-November/018418.htm
>>   l
>> 
>> If yes can you re-forward it to me (I lost it sorry)?
>
>hmm....I doubt it. I'd expect the box to crash if it were.
>
You have right it doesn't matter.

But I do some progress:
Partition Check locks on the b180 at :
....
    res=check_part[i](hd, bdev, first_sector, first_part_minor);
....
in check_partition(...)

in the very first check_part[0]

Now how may I determine (with printk) which actual function is called?

Thanks,
    Joel



********************************************************************************
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Hi grant,
>
>>
>>jsoe0708@tiscali.be wrote:
>>> Hi Grant,
>>>
>>> Could it be related to your patch in msg:
>>> http://lists.parisc-linux.org/pipermail/parisc-linux/2002-November/018418.htm
>>>   l
>>>
>>> If yes can you re-forward it to me (I lost it sorry)?
>>
>>hmm....I doubt it. I'd expect the box to crash if it were.
>>
>You have right it doesn't matter.
>
>But I do some progress:
>Partition Check locks on the b180 at :
>....
>    res=check_part[i](hd, bdev, first_sector, first_part_minor);
>....
>in check_partition(...)
>
>in the very first check_part[0]
>
>Now how may I determine (with printk) which actual function is called?
>
Well stopping gcc at preprocessing stage, I reach to figure out that only
msdos_partition is configured.

I continue (i will check first transmitted parameter values)

Joel


********************************************************************************
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Subject: Re: [parisc-linux] Dual Video Cards?
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Well that's going to be my exact setup...I have one PCI EG card on the way and it came with a GSC EG card that I'm using now.  This machine dual boots HPUX and Linux of a Model 12 Autoraid with 2 LUNS on it.  I guess I'll get it working with HPUX first then tackle the Linux side.  I do have access to a serial console and that's how I got the original GSC graphics card configured to work.  Right now the GSC card is the default console and it works fine.  I found it interesting that the new palinux-2.4.19-pa24-PDC-20021106-netinst.iso doesn't exhibit the long bus walk times that I've been hearing about unless I have my kernal versions confused.  Like others here I, my network won't hook up to the switch at 100FD only 10FD.  The more interesting thing is that it hooks up at 100FD during the i
 nstall phase of Linux for the netinst CD, but not after it's running on it's own kernal.  I do believe someone wrote a patch for this though.
derek
 Nahkola Mikko <mnahkola@trinms01.ntc.nokia.com> wrote:On Mon, Nov 25, 2002 at 08:09:20PM -0800, ext Derek Engelhaupt wrote:

> Anyone running dual displays on a C Class? And if so how? I 
> understand it needs two video cards or one card with dual output. 
> Thanks.....

Well, I have both a VIS-EG/PCI and a VIS-EG/GSC in a C360, but it's 
running HP-UX and not Linux. 

Hardware-wise it isn't a problem, even though the GSC card isn't 
officially supported in a C360. You might want to check the boot 
consols config though, diagnosing display problems with that during boot 
isn't fun without a serial console. And if you want to have a graphics 
console, do mind the slot designations ... I wouldn't try to make the GSC 
card the console in the C360, for example.

Don't know how you'd go about configuring those in Linux though. In HP-UX 
it's rather simple but that doesn't help much...


-- 
Mikko Nahkola 
Tre-IN sysadmin 
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


---------------------------------
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<P>Well that's going to be my exact setup...I have one PCI EG card on the way and it came with a GSC EG card that I'm using now.&nbsp; This machine dual boots HPUX and Linux of a Model 12 Autoraid with 2 LUNS on it.&nbsp; I guess I'll get it working with HPUX first then tackle the Linux side.&nbsp; I do have access to a serial console and that's how I got the original GSC graphics card configured to work.&nbsp; Right now the GSC card is the default console and it works fine.&nbsp; I found it interesting that the new palinux-2.4.19-pa24-PDC-20021106-netinst.iso doesn't exhibit the long bus walk times that I've been hearing about unless I have my kernal versions confused.&nbsp; Like others here I, my network won't hook up to the switch at 100FD only 10FD.&nbsp; The more interesting thing is 
 that it hooks up at 100FD during the install phase of Linux for the netinst CD, but not after it's running on it's own kernal.&nbsp; I do believe someone wrote a patch for this though.
<P>derek
<P>&nbsp;<B><I>Nahkola Mikko &lt;mnahkola@trinms01.ntc.nokia.com&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">On Mon, Nov 25, 2002 at 08:09:20PM -0800, ext Derek Engelhaupt wrote:<BR><BR>&gt; Anyone running dual displays on a C Class? And if so how? I <BR>&gt; understand it needs two video cards or one card with dual output. <BR>&gt; Thanks.....<BR><BR>Well, I have both a VIS-EG/PCI and a VIS-EG/GSC in a C360, but it's <BR>running HP-UX and not Linux. <BR><BR>Hardware-wise it isn't a problem, even though the GSC card isn't <BR>officially supported in a C360. You might want to check the boot <BR>consols config though, diagnosing display problems with that during boot <BR>isn't fun without a serial console. And if you want to have a graphics <BR>console, do mind the slot designations ... I wouldn't try to make th
 e GSC <BR>card the console in the C360, for example.<BR><BR>Don't know how you'd go about configuring those in Linux though. In HP-UX <BR>it's rather simple but that doesn't help much...<BR><BR><BR>-- <BR>Mikko Nahkola <MIKKO.NAHKOLA@NOKIA.COM><BR>Tre-IN sysadmin <MNAHKOLA@TREIN.NTC.NOKIA.COM><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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the cable length is less than 4ft & every other disk worked, including
some of the same model






On Wed, 2002-11-27 at 01:57, jsoe0708@tiscali.be wrote:
> >
> >when i'm doing the disk cloning i'm actually using 2 workstations to
> >power the drives separately & a scsi cable long enough to reach both
> >disks, so i dont think its a spin up issue
> >
> Not a too long cable:
> in production with 712 model I met problems when the total length of the
> scsi chain was below but near 6m (composed of about 5 cables; connectic should
> certainly affected the signal)
> 
> Joel
> 
> ********************************************************************************
> Controlez mieux votre consommation Internet...surfez Tiscali Complete...http://tiscali.complete.be
> 
> 




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> the cable length is less than 4ft & every other disk worked, including
> some of the same model

Have you tried reading with dd from raw device?  Try with a large bs and
count=1.  This should detect a funny block size.  You could also try building
the driver with debugging enabled.  This should give some idea as to
what's happening.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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>
>the cable length is less than 4ft & every other disk worked, including
>some of the same model
>
Ok same model but can you still make me a favour by verifying the firmware
release?

Thanks,
    Joel

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Subject: Re: FW: RE: [parisc-linux] 2.4.20-rc1-pa7 boot problem on b180
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Hi grant,
>>
>>>
>>>jsoe0708@tiscali.be wrote:
>>>> Hi Grant,
>>>>
>>>> Could it be related to your patch in msg:
>>>> http://lists.parisc-linux.org/pipermail/parisc-linux/2002-November/018418.htm
>>>>   l
>>>>
>>>> If yes can you re-forward it to me (I lost it sorry)?
>>>
>>>hmm....I doubt it. I'd expect the box to crash if it were.
>>>
>>You have right it doesn't matter.
>>
>>But I do some progress:
>>Partition Check locks on the b180 at :
>>....
>>    res=check_part[i](hd, bdev, first_sector, first_part_minor);
>>....
>>in check_partition(...)
>>
>>in the very first check_part[0]
>>
>>Now how may I determine (with printk) which actual function is called?
>>
>Well stopping gcc at preprocessing stage, I reach to figure out that only
>msdos_partition is configured.
>
>I continue (i will check first transmitted parameter values)
>
Well that is ok. 

Should this patch <http://lists.parisc-linux.org/hypermail/parisc-linux/10440.html>

be backport into 2.4?

Joel

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On Wed, Nov 27, 2002 at 07:09:18PM +0100, jsoe0708@tiscali.be wrote:
> Should this patch <http://lists.parisc-linux.org/hypermail/parisc-linux/10440.html>
> 
> be backport into 2.4?

which of those patches are not already in 2.4?

-- 
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>
>On Wed, Nov 27, 2002 at 07:09:18PM +0100, jsoe0708@tiscali.be wrote:
>> Should this patch <http://lists.parisc-linux.org/hypermail/parisc-linux/10440.html>
>> 
>> be backport into 2.4?
>
>which of those patches are not already in 2.4?
>
Don't know? Patch refer to 2.5

Joel

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ooo - my mistake

this is the only one thats an ST31230N - the rest are ST31200N

how do i find the firmware number for the drives?

theres what i think are proms with numbers on labels which might be it

the ones that work (ST31200N) all have 

3491 I-HI 150
3491 I-LO 150 

on them 

the one that doesnt (ST31230N) has

7579 1929 I-HI
7579 1929 I-LO

any help ?


James S


On Wed, 2002-11-27 at 12:06, jsoe0708@tiscali.be wrote:
> 
> >
> >the cable length is less than 4ft & every other disk worked, including
> >some of the same model
> >
> Ok same model but can you still make me a favour by verifying the firmware
> release?
> 
> Thanks,
>     Joel
> 
> ********************************************************************************
> Controlez mieux votre consommation Internet...surfez Tiscali Complete...http://tiscali.complete.be
> 
> 




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Hello,
I have just installed The Debian HPPA Linux 3.0r0 on my workstation C100 / 
9000. And I have the A4071B Graphics card. Unfortunately I can't configure 
X11. is there someone who can help me?
ThankU

Moumboungou





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Hi Grant,
>>
>>On Wed, Nov 27, 2002 at 07:09:18PM +0100, jsoe0708@tiscali.be wrote:
>>> Should this patch <http://lists.parisc-linux.org/hypermail/parisc-lin=
ux/10440.html>
>>> 
>>> be backport into 2.4?
>>
>>which of those patches are not already in 2.4?
>>
>Don't know? Patch refer to 2.5
>
Hmm do not know yet if this stand in 2.4 (I think so but not sure), never=

the less by curiosity I apply the Ryan patch: <http://lists.parisc-linux.=
org/pipermail/parisc-linux/2002-November/018414.html>
and it also solved the problem of the b180 boot???

Grant && Ryan, thanks a lot,
    Joel


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I had that same card in my C180 and couldn't get it to work.  You will probably be better off using the internal graphics port on the C100.  The internal port only yields 8 bit color, but I don't think that A4071B card is supported at the moment.
derek
 Abel Mamfoumby <moumboungou@hotmail.com> wrote:Hello,
I have just installed The Debian HPPA Linux 3.0r0 on my workstation C100 / 
9000. And I have the A4071B Graphics card. Unfortunately I can't configure 
X11. is there someone who can help me?
ThankU

Moumboungou





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<P>I had that same card in my C180 and couldn't get it to work.&nbsp; You will probably be better off using the internal graphics port on the C100.&nbsp; The internal port only yields 8 bit color, but I don't think that A4071B card is supported at the moment.
<P>derek
<P>&nbsp;<B><I>Abel Mamfoumby &lt;moumboungou@hotmail.com&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">Hello,<BR>I have just installed The Debian HPPA Linux 3.0r0 on my workstation C100 / <BR>9000. And I have the A4071B Graphics card. Unfortunately I can't configure <BR>X11. is there someone who can help me?<BR>ThankU<BR><BR>Moumboungou<BR><BR><BR><BR><BR><BR>_________________________________________________________________<BR>MSN Messenger : discutez en direct avec vos amis ! <BR>http://www.msn.fr/msger/default.asp<BR><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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>the less by curiosity I apply the Ryan patch: <http://lists.parisc-linux=
.org/pipermail/parisc-linux/2002-November/018414.html>
>and it also solved the problem of the b180 boot???
>

Don't know if could help but I also notice the following difference at bo=
ot
time:

With highmem_io=3D1 on a b2000
sym1: SCSI BUS has been reset.
scsi0 : sym-2.1.17a
scsi1 : sym-2.1.17a
blk: queue 100aca74, I/O limit 4095Mb (mask 0xffffffff)??? blk_queue_boun=
ce_limit
  Vendor: QUANTUM   Model: ATLAS5-9LVD       Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 03
blk: queue 100acb74, I/O limit 4095Mb (mask 0xffffffff)
  Vendor: QUANTUM   Model: ATLAS5-9LVD       Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 03
blk: queue 100acc74, I/O limit 4095Mb (mask 0xffffffff)
sym1:5:0: tagged command queuing enabled, command queue depth 16.
sym1:6:0: tagged command queuing enabled, command queue depth 16.


with highmem_io=3D0 on a b180
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.17a
  Vendor: IBM       Model: DDRS-39130WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: IBM       Model: DDRS-39130WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:5:0: tagged command queuing enabled, command queue depth 16.
sym0:6:0: tagged command queuing enabled, command queue depth 16.

hth,
    Joel


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Hi people,

I am trying to use this function declared in cache.h (I put this =
include in
my source code) and I was obtain a linker error (undefined reference to
`flush_data_cache_local').
I am verify that the function flush_data_cache =E9 um define to
flush_data_cache_local, but I am do not identify the reason of the =
error.

Thanks in advance,

----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com




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On Thu, Nov 28, 2002 at 12:05:14PM -0500, FARINATI,LEANDRO (HP-Brazil,ex1) wrote:
> I am trying to use this function declared in cache.h (I put this include in
> my source code) and I was obtain a linker error (undefined reference to
> `flush_data_cache_local').
> I am verify that the function flush_data_cache  um define to
> flush_data_cache_local, but I am do not identify the reason of the error.

umm.. is this a module or linked into the kernel?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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>-- Original Message --
>Date: Fri, 29 Nov 2002 00:51:08 -0700 (MST)
>From: MAILER-DAEMON@dsl2.external.hp.com (Mail Delivery System)
>Subject: Undelivered Mail Returned to Sender
>To: jsoe0708@tiscali.be
>
>
>This is the Postfix program at host dsl2.external.hp.com.
>
>I'm sorry to have to inform you that the message returned
>below could not be delivered to one or more destinations.
>
>For further assistance, please send mail to <postmaster>
>
>If you do so, please include this problem report. You can
>delete your own text from the message returned below.
>
>			The Postfix program
>
><ftpmaster@ftp.parisc-linux.org>: mail for ftp.parisc-linux.org loops ba=
ck
>to
>    myself
>Reporting-MTA: dns; dsl2.external.hp.com
>Arrival-Date: Fri, 29 Nov 2002 00:51:08 -0700 (MST)
>
>Final-Recipient: rfc822; ftpmaster@ftp.parisc-linux.org
>Action: failed
>Status: 5.0.0
>Diagnostic-Code: X-Postfix; mail for ftp.parisc-linux.org loops back to
myself
>--- Start of the Attached Message ---
>
>Date: Fri, 29 Nov 2002 08:50:53 +0100
>From: "Joel Soete" <jsoe0708@tiscali.be>
>To: ftpmaster@ftp.parisc-linux.org
>
>
>Hi master :),
>
>I would like to consult the contents of dump_patche.2.4.19-pa22.gz (it
sounds
>like Bruno dump patch :)) ) into patches but the world has not read acce=
ss.
>Can you help?
>
>Thanks in advance,
>    Joel
>
>
Can some body help?

Thanks,
    Joel


*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be





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Willy,

Thanks for release,
    Joel

********************************************************************************
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Subject: [parisc-linux] Typo?
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Here attached some diff which seems to be typo.

Joel

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L3NiYV9pb21tdS5jIGxpbnV4LTIuNC4yMC1wYTkvYXJjaC9wYXJpc2Mva2VybmVsL3NiYV9pb21t
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From - Thu Nov 08 21:25:44 2018
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On Fri, Nov 29, 2002 at 10:57:50AM +0100, jsoe0708@tiscali.be wrote:
> Here attached some diff which seems to be typo.

patch looks correct to me.  grant?



-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] 2.5 status update 2002-11-29
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We've merged 2.5.50 into our tree.  It boots on an A500 (uniprocessor)
and compiles for most common configurations.  Userspace apps still crash
a lot.  Our diff vs Linus' tree is 536k, which seems like a lot, except
that it was around 2.7MB in the 2.5.44 timeframe.  It compresses down to
about 130k which is comparable with other architectures.

For the curious, this is how it breaks down:

parisc-hil.diff  167064
parisc-misc.diff  46402
parisc-ps2.diff   60152
parisc-scsi.diff  44026
parisc-sti.diff  162164

I'm hoping Linus will take parisc-ps2.diff & parisc-misc.diff soon.
Rusty's promised to fix the module situation.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> We've merged 2.5.50 into our tree.  It boots on an A500 (uniprocessor)
> and compiles for most common configurations.  Userspace apps still crash
> a lot.  Our diff vs Linus' tree is 536k, which seems like a lot, except
> that it was around 2.7MB in the 2.5.44 timeframe.  It compresses down to
> about 130k which is comparable with other architectures.

Here here! :)
/me promises willy a pint

Now if only I could cleanup our userspace with such impunity :}

c.


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Subject: [parisc-linux] HPPA Proc problems?
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pa,

I'm seeing some weird proc behaviour, like cpu times in the
billions of seconds, but only for a transient amount of time, after
which it corrects itself. Very odd. Just doing 'ps aux www' triggers
this... and not always.

---
root       306  0.0  0.1  4996 1600 ?        S    Nov26   0:00 /usr/sbin/apache
root      7897  0.0  0.0 12992  864 ?        S    Nov27   0:00 /usr/sbin/nscd
root      7898  0.0  0.0 12992  864 ?        S    Nov27   0:00 /usr/sbin/nscd
root      7899  0.0  0.0 12992  864 ?        S    Nov27   0:00 /usr/sbin/nscd
root      7900 99.9  0.0 12992  864 ?        S    Nov27 13600729:46 /usr/sbin/nscd
                                                        ^^^^^^^^^^^ ???

root      7901  0.0  0.0 12992  864 ?        S    Nov27   0:00 /usr/sbin/nscd
root      7902  0.0  0.0 12992  864 ?        S    Nov27   0:00 /usr/sbin/nscd
root      7903  0.0  0.0 12992  864 ?        S    Nov27   0:00 /usr/sbin/nscd
root      7909  0.0  0.2  5200 3384 ?        S    Nov27   0:00 /usr/bin/X11/xfs -daemon
---
procps 3.1.0-1 The /proc file system utilities.
2.4.19-pa22, gcc-3.1.1 compiled, toolset from unstable.

Any ideas aobut this? Is anyone seeing any odd behavour? 

Berthold from SuSE was commenting about this (building SuSE on HPPA :)
and also noted that his gcc-3.3 compiled kernel has procinfo problems:
procinfo complains that it can't grok his gcc version.

--
Linux 2.4.19-pa20 (xxxx@xxx) (gcc [can't parse]) #???  1CPU [raven.]
-- Berthold's

Linux 2.4.19-pa22 (xxxx@xxx) (gcc 3.1.1 20020715 ) #5 1CPU [firin]
-- Carlos'

In sysutils/procinfo/routines.c

    269     ret = sscanf (line, "Linux version %s (%[^)]) (gcc %[^)]) #%s %[^\n]",
    270                   ver, host, gcc, compno, date);
    271 
    272     if (ret != 5)       /* Damn egcs uses nested ()'s... */
    273         ret = sscanf (line, "Linux version %s (%[^)]) (gcc %[^(] (%*[^)])) #%s %[^\n]",
    274                       ver, host, gcc, compno, date);
    275 
    276     if (ret == 3) {     /* At least we've got ver & host right... */
    277         strcpy (gcc, "[can't parse]");
    278         strcpy (compno, "???");
    279         date[0] = 0;
    280     }

Looks like it might be a regex problem?

c.



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I want to use a serial console on my 712/80. To do that I need the "ISL"
prompt after booting. I read that the "ISL" prompt is included in a lifimage
called uxbootlf, which I downloaded.
But how do I use it?

Greetings,
Tim



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Hi Tim,

>I want to use a serial console on my 712/80. To do that I need the "ISL"=

>prompt after booting. I read that the "ISL" prompt is included in a lifi=
mage
>called uxbootlf, which I downloaded.
>But how do I use it?

The best would be refer to excelent:
<http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/index.=
html>

You would also certainly have to look for a tips to setup your console to=

be the serial device (it is not supported).

Cheers,
    Joel


*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be





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The HOWTO only says how to make a lifimage (with NFSROOT or RAMDISK). It
doesn't say how I should use it.

Tim

----- Oorspronkelijk bericht -----
Van: <jsoe0708@tiscali.be>
Aan: "Tim Kemna" <t.kemna@student.utwente.nl>;
<parisc-linux@lists.parisc-linux.org>
Verzonden: maandag 2 december 2002 8:44
Onderwerp: RE: [parisc-linux] lifimage


> Hi Tim,
>
> >I want to use a serial console on my 712/80. To do that I need the "ISL"
> >prompt after booting. I read that the "ISL" prompt is included in a
lifimage
> >called uxbootlf, which I downloaded.
> >But how do I use it?
>
> The best would be refer to excelent:
>
<http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/index.htm
l>
>
> You would also certainly have to look for a tips to setup your console to
> be the serial device (it is not supported).
>
> Cheers,
>     Joel
>
>
>
****************************************************************************
****
> Controlez mieux votre consommation Internet...surfez Tiscali
Complete...http://tiscali.complete.be
>
>
>



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On Mon, Dec 02, 2002 at 10:02:56AM +0100, Tim Kemna wrote:
> The HOWTO only says how to make a lifimage (with NFSROOT or RAMDISK). It
> doesn't say how I should use it.

You can netboot it, or use dd to dump it to a spare scsi disk and boot
that disk, or write it to a cd (just the lifimage itself, not as a file
in a file system), and boot from that.  Personally I'd netboot it.

Richard



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Le lundi, 2 d=E9c 2002, =E0 10:02 Europe/Paris, Tim Kemna a =E9crit :

> The HOWTO only says how to make a lifimage (with NFSROOT or RAMDISK). =20=

> It
> doesn't say how I should use it.

http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/=20
bootnetwork.html


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=




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Hi all,
>
>Le lundi, 2 d=E9c 2002, =E0 10:02 Europe/Paris, Tim Kemna a =E9crit :
>
>> The HOWTO only says how to make a lifimage (with NFSROOT or RAMDISK).

>
>> It
>> doesn't say how I should use it.
>
>http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/ 
>bootnetwork.html
>
Sorry (it was in intention to mentionned this section but I forget)

Hmm there is also an interesting section:
<http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/consol=
es.html#serialconsole>

explaining "3.2.3.2.1. How can I change the boot console to serial on a
712?"

Cheers,
    Joel

PS: I used this method to install a b2k model (when ide cd did work yet)

*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be





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Subject: [parisc-linux] dump_patche.2.4.19-pa22.gz no read acces to the world
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Hi all,

In ftp://ftp.parisc-linux.org/patches/ I would be interested to read dump=
_patche.2.4.19-pa22.gz
but it doesn't have read access for other.

Can you help me?

Thanks in advance,
    Joel


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I need the lifimage to setup my console to be the serial device. So I can't
use netboot. Am I right?

----- Oorspronkelijk bericht -----
Van: "Richard Hirst" <rhirst@linuxcare.com>
Aan: "Tim Kemna" <t.kemna@student.utwente.nl>
CC: <parisc-linux@lists.parisc-linux.org>
Verzonden: maandag 2 december 2002 11:50
Onderwerp: Re: [parisc-linux] lifimage


> On Mon, Dec 02, 2002 at 10:02:56AM +0100, Tim Kemna wrote:
> > The HOWTO only says how to make a lifimage (with NFSROOT or RAMDISK). It
> > doesn't say how I should use it.
>
> You can netboot it, or use dd to dump it to a spare scsi disk and boot
> that disk, or write it to a cd (just the lifimage itself, not as a file
> in a file system), and boot from that.  Personally I'd netboot it.
>
> Richard
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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On Mon, Dec 02, 2002 at 05:13:50PM +0100, Tim Kemna wrote:
> I need the lifimage to setup my console to be the serial device. So I can't
> use netboot. Am I right?

This is a 712, right?  I guess you do need a working graphical console
in order to boot the lifimage and make the config change.  Do you not
have access to a PS/2 keyboard and (sync-on-green?) monitor for long
enough to do that?  My 17" iiyama monitor and a no-name 19" here work on
my 712.

Richard



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It is a 712 indeed. I do have a keyboard and a monitor, but I'm tired of
switching those between my pc and my 712. At the moment I also don't have
internet access on my 712. So I will try to make the change by booting the
lifimage from a cd.

Tim

----- Oorspronkelijk bericht -----
Van: "Richard Hirst" <rhirst@linuxcare.com>
Aan: "Tim Kemna" <t.kemna@student.utwente.nl>
CC: <parisc-linux@lists.parisc-linux.org>
Verzonden: maandag 2 december 2002 17:52
Onderwerp: Re: [parisc-linux] lifimage


> On Mon, Dec 02, 2002 at 05:13:50PM +0100, Tim Kemna wrote:
> > I need the lifimage to setup my console to be the serial device. So I
can't
> > use netboot. Am I right?
>
> This is a 712, right?  I guess you do need a working graphical console
> in order to boot the lifimage and make the config change.  Do you not
> have access to a PS/2 keyboard and (sync-on-green?) monitor for long
> enough to do that?  My 17" iiyama monitor and a no-name 19" here work on
> my 712.
>
> Richard
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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Hi people,

How I manually make a syscall passing the index?

Thanks in advance

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com
*   +55-51-3316-2852 Telnet  725-2852
FAX +55-51-3316-2754 Mobile +55-51-9965-8020





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> How I manually make a syscall passing the index?

Look at glibc/sysdeps/unix/sysv/linux/hppa/sysdep.c

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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This fixes it.  Looks like a race, I wasn't inclined to dig further, this
got me past the problem.  I suspect that parisc fork() runs parent/child
in the opposite order from every other Unix and that causes a race but
I have not looked.

--lm

diff -Nur netkit-rsh-0.17/rlogind/rlogind.c NEW/netkit-rsh-0.17/rlogind/rlogind.c
--- netkit-rsh-0.17/rlogind/rlogind.c   Mon Dec  2 13:52:37 2002
+++ NEW/netkit-rsh-0.17/rlogind/rlogind.c       Mon Dec  2 13:48:48 2002
@@ -429,6 +429,7 @@
        if (netfd > 2) close(netfd);
        child(hname, termtype, lusername, authenticated);
     }
+    usleep(100000);
     close(slave);
     on = 1;
     ioctl(netfd, FIONBIO, &on);



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--aM3YZ0Iwxop3KEKx
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libc-alpha,

Thanks to HP's testdrive users, we found and fixed a small masking bug
in fesetround(). Should use ~FE_DOWNWARD since this is the rounding mask
set to all ones, and will clear the mask before or'ing the round value.

It was suggested that a test case could be made of this, where glibc
tries to set and get various combinations of FE_DOWNWARD, FE_UPWARD,
FE_TONEAREST, and FE_UPWARD. I could provide such a testcase if it was
deemed usefull. 

c.

---

2002-12-02  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* sysdeps/hppa/fpu/fesetround.c: 
	(fesetround): Use ~FE_DOWNWARD so both bits of RM are cleared.

--aM3YZ0Iwxop3KEKx
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=03-glibc23-hppa-fesetround

--- glibc-2.3.1/sysdeps/hppa/fpu/fesetround.c	2002-12-02 16:36:36.000000000 -0500
+++ glibc-2.3.1/sysdeps/hppa/fpu/fesetround.c	2002-12-02 16:36:59.000000000 -0500
@@ -31,7 +31,7 @@
 
   /* Get the current status word. */
   __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
-  sw[0] &= ~FE_UPWARD;
+  sw[0] &= ~FE_DOWNWARD;
   sw[0] |= round;
   __asm__ ("fldd 0(%0),%%fr0" : : "r" (sw));
 

--aM3YZ0Iwxop3KEKx--


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X-Windows: flawed beyond belief.
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I've put that fix in.  I'm not quite sure what you are suggesting for a new
test, but test cases that fail on known bug regressions (i.e. one that
fails before your fix and works after it) are always welcome.


Thanks,
Roland



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jsoe0708@tiscali.be wrote:
> >the less by curiosity I apply the Ryan patch: <http://lists.parisc-linux=
> .org/pipermail/parisc-linux/2002-November/018414.html>
> >and it also solved the problem of the b180 boot??

yes - thanks for finding this!

arch/parisc/kernel/pci-dma.c has the same bug as what ccio driver
has/had regarding scatter/gather lists (pci_map_sg() interfaces).
Replace all references to "sg->address" with "sg_virt_addr(sg)".
Can you send me a patch off list for that?

If not, I'll probably do it since I'd like to get my B180 working on 2.4.20.
It will just take longer.

> Don't know if could help but I also notice the following difference at
> boot time:
> 
> With highmem_io=3D1 on a b2000
...
> with highmem_io=3D0 on a b180
...

It's hard to compare different SCSI implementations.
IIRC, B2000 uses 53c875 and B180 uses LASI for SE narrow SCSI.
Check to see which driver claims the respective SCSI controllers.

grant


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In reference to a message from Larry McVoy, dated Dec 02:
> This fixes it.  Looks like a race, I wasn't inclined to dig further, this
> got me past the problem.  I suspect that parisc fork() runs parent/child
> in the opposite order from every other Unix and that causes a race but
> I have not looked.

Nah, this is not it. It's the problem with EAGAIN != EWOULDBLOCK on 
hppa-linux.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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James Smith wrote:
> how do i find the firmware number for the drives?

grundler@c3k:~$ cat /proc/scsi/scsi
Attached devices: 
Host: scsi1 Channel: 00 Id: 05 Lun: 00
  Vendor: SEAGATE  Model: ST118202LC       Rev: 7D04
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 06 Lun: 00
  Vendor: SEAGATE  Model: ST118202LC       Rev: HP03
  Type:   Direct-Access                    ANSI SCSI revision: 02
grundler@c3k:~$ 

"Rev" is the drive firmware.

grant


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On Mon, Dec 02, 2002 at 08:56:57PM -0800, Randolph Chung wrote:
> In reference to a message from Larry McVoy, dated Dec 02:
> > This fixes it.  Looks like a race, I wasn't inclined to dig further, this
> > got me past the problem.  I suspect that parisc fork() runs parent/child
> > in the opposite order from every other Unix and that causes a race but
> > I have not looked.
> 
> Nah, this is not it. It's the problem with EAGAIN != EWOULDBLOCK on 
> hppa-linux.

OK, whatever.  I just though the rlogin people would want to know.
This seems to be a long standing and annoying bug.
-- 
---
Larry McVoy            	 lm at bitmover.com           http://www.bitmover.com/lm 


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jsoe0708@tiscali.be wrote:
> In ftp://ftp.parisc-linux.org/patches/ I would be interested to read
> dump_patche.2.4.19-pa22.gz but it doesn't have read access for other.

I put that there so a few people could test an early version.
When Bruno is ready to publish his dump patch, it will be world readable.
Hopefully we can just commit to our CVS though...

sorry,
grant


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Matthew Wilcox wrote:
> On Fri, Nov 29, 2002 at 10:57:50AM +0100, jsoe0708@tiscali.be wrote:
> > Here attached some diff which seems to be typo.
> 
> patch looks correct to me.  grant?

yup - a typo in the debug code. I'll commit Joels patch shortly.

thanks!
grant


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Matthew Wilcox wrote:
> On Fri, Nov 29, 2002 at 10:57:50AM +0100, jsoe0708@tiscali.be wrote:
> > Here attached some diff which seems to be typo.
> 
> patch looks correct to me.  grant?

I was off on holiday...I guess I didn't advertise that well enough.

I just committed Joel's patch and just now realized it's *WRONG*.
I don't know why I thought sg_virt_address() was correct before.
Brain fart.

grundler <520>fgrep sg_virt include/asm-parisc/scatterlist.h 
#define sg_virt_addr(sg) (((sg)->address) ? ((sg)->address) : \

I'll fix my mess. *sigh*.
BTW, I'll fix pci-dma.c too. I've got the B180 to test it on tomorrow.

thanks!
grant


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Xref: news.gmane.org gmane.linux.ports.parisc:16996

On Tue, 3 Dec 2002 10:32:49 +0100
JKonrad@linotype.com wrote:

> We got Linux installed nice and easy after switching to ttyB0..... 
> unfortunately, after the installation, when we rebooted, he did this:

[...] (It's a K200)

>     0/vmlinux32 3960547 bytes @ 0x44000  
>   
> Command line for kernel: 'root=/dev/sda3 HOME=/ console=ttyB0 
> palo_kernel=3/boo'
> Selected kernel: /boot/vmlinux from partition 3  
>  
> offset_read(2, 0x0006c7a4, 128, 1476411392) can't seek past 238026752  
>  
> ext2_iget: read errorERROR: open /boot/vmlinux from partition 3 failed 
> 
> "
> 
> too bad..... you have any ideas?????

Yes I do:
I'm quoting my previous mail. Here is the idea...

> I strongly recommend you take a look at the PA-RISC/Linux Boot HOWTO, 
> it contains much interesting info:
> http://pateam.esiee.fr/doc.html
> 
> and you should also take a look here:
> http://www.fr.parisc-linux.org/
> and especially to the m-l archives here:
> http://www.fr.parisc-linux.org/mailing-lists/
> 
> You should find almost everything you need there...

If you had read it, this problem wouldn't even have happened...
http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/paloappusage.html#bootablepartition

What's more, palo _does_ tell you what's wrong:
"can't seek past 238026752"

Please, take some time to read the doc that has been written to avoid repeating endlessly the same answers to the same questions...

For what it's worth, we, as a community of developers and users, have a mailing-list to share knowledge. You'll find much help there too, that's why I'm CC'ing this mail.

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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From: Erlend Aasland <erlend-a@ux.his.no>
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Subject: [parisc-linux] [TRIVIAL PATCH 2.5] get rid of CONFIG_UDF_RW (parisc)
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Xref: news.gmane.org gmane.linux.ports.parisc:16997

Remove CONFIG_UDF_RW from parisc defconfig (it's not used anymore)

Regards,
	Erlend Aasland

diff -urN linux-2.5.50/arch/parisc/defconfig linux-2.5.50-eaa/arch/parisc/defconfig
--- linux-2.5.50/arch/parisc/defconfig	Fri Nov  1 00:07:19 2002
+++ linux-2.5.50-eaa/arch/parisc/defconfig	Tue Dec  3 00:48:05 2002
@@ -576,7 +576,6 @@
 CONFIG_EXT2_FS=y
 # CONFIG_SYSV_FS is not set
 # CONFIG_UDF_FS is not set
-# CONFIG_UDF_RW is not set
 # CONFIG_UFS_FS is not set
 # CONFIG_UFS_FS_WRITE is not set
 


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Hi,

I have been able to install Debian on a C3000. But I am not able to start
X windows - "Fatal Error: No screens found".

The parisc-linux homepage says that a few issues remain with graphics
support on C3000. Is that the problem?

Has anyone been able to start X on c3000? Should I post the log files to
figure out what could be the problem?


Thanks in advance.
Bala




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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: Re: [parisc-linux] X on C3000
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On Tue, Dec 03, 2002 at 03:31:06PM -0600, balak@ieee.org wrote:
> Has anyone been able to start X on c3000? Should I post the log files to
> figure out what could be the problem?

Not yet. Just post the dmesg output immediately after the c3k boots.
We'll be able to see what kind of gfx card you have from that.

See ftp://ftp.parisc-linux.org/kernels/c3000/ for my XF86Config-4
and kernels that work on my c3k. If you can't make forward progress
after looking at the XF86Config-4, then post the XF86 log files.

hth,
grant


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From: lamont@b180.mmjgroup.com (LaMont Jones)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] airo.c patch for hppa
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Xref: news.gmane.org gmane.linux.ports.parisc:17000

The patch below gets airo.c working on hppa.  Diff is vs 2.4.20 source.

The first part (chage to init_airo_card and it's callers) allows us to call
pci_enable_device like we need to.

The other part (the stuff inside #ifdef __hppa__) is a gross hack that works
around some issues between dino and the card during initialization where the
card fails to ack reads of several 2-byte aligned addresses.  With these
changes, I have a working PCI4800 in my B180.

It would, of course, be nice if at least part of this made it into the CVS
tree...

thoughts?
lamont

--- ../x/airo.c	2002-12-03 18:55:31.000000000 -0700
+++ drivers/net/wireless/airo.c	2002-12-03 21:20:32.000000000 -0700
@@ -1649,7 +1649,7 @@
 	return dev;
 }
 
-struct net_device *init_airo_card( unsigned short irq, int port, int is_pcmcia )
+struct net_device *init_airo_card( unsigned short irq, int port, int is_pcmcia , struct pci_dev *pdev )
 {
 	struct net_device *dev;
 	struct airo_info *ai;
@@ -1696,6 +1696,12 @@
 	dev->irq = irq;
 	dev->base_addr = port;
 
+	if ( !is_pcmcia && pdev ) {
+		if (pci_enable_device(pdev))
+			goto err_out_free;
+		pci_set_master(pdev);
+	}
+
 	rc = request_irq( dev->irq, airo_interrupt, SA_SHIRQ, dev->name, dev );
 	if (rc) {
 		printk(KERN_ERR "airo: register interrupt %d failed, rc %d\n", irq, rc );
@@ -2163,12 +2169,22 @@
 static u16 IN4500( struct airo_info *ai, u16 reg ) {
 	unsigned short rc;
 
+#ifdef __hppa__
+	if ((reg&3) && reg!=DATA0) {
+		unsigned int ri;
+		ri=inl(ai->dev->base_addr + (reg&~3));
+		rc=(ri>>(8*(reg&3)))&0xffff;
+	} else {
+		rc = inw( ai->dev->base_addr + reg );
+	}
+#else
 	if ( !do8bitIO )
 		rc = inw( ai->dev->base_addr + reg );
 	else {
 		rc = inb( ai->dev->base_addr + reg );
 		rc += ((int)inb( ai->dev->base_addr + reg + 1 )) << 8;
 	}
+#endif
 	return rc;
 }
 
@@ -2266,6 +2282,7 @@
 		printk(KERN_ERR "airo: Error checking for AUX port\n");
 		return ERROR;
 	}
+	
 	if (!aux_bap || rsp.status & 0xff00) {
 		ai->bap_read = fast_bap_read;
 		printk(KERN_DEBUG "airo: Doing fast bap_reads\n");
@@ -4008,7 +4025,7 @@
 {
 	struct net_device *dev;
 
-	dev = init_airo_card(pdev->irq,	pdev->resource[2].start, 0);
+	dev = init_airo_card(pdev->irq,	pdev->resource[2].start, 0, pdev);
 	if (!dev)
 		return -ENODEV;
 
@@ -4036,7 +4053,7 @@
 		printk( KERN_INFO
 			"airo:  Trying to configure ISA adapter at irq=%d io=0x%x\n",
 			irq[i], io[i] );
-		if (init_airo_card( irq[i], io[i], 0 ))
+		if (init_airo_card( irq[i], io[i], 0, 0 ))
 			have_isa_dev = 1;
 	}
 


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I changed the console by booting de lifimage. The machine now boots without
a keyboard connected to it. Also when I push the power button it doesn't
turn off. So I'm pretty sure the console is now the serial device.

Now my problem is that I can't get any output. I'm using HyperTerminal 6.3
on windows 98. The settings are 9600 8-N-1. My serial cable is D9F/D9F.
Do I need to reboot the 712 every time I try to connect to it? Or can I just
plug the cable into another COM port and try again?

Greetings,
Tim

----- Oorspronkelijk bericht -----
Van: "Richard Hirst" <rhirst@linuxcare.com>
Aan: "Tim Kemna" <t.kemna@student.utwente.nl>
CC: <parisc-linux@lists.parisc-linux.org>
Verzonden: maandag 2 december 2002 17:52
Onderwerp: Re: [parisc-linux] lifimage


> On Mon, Dec 02, 2002 at 05:13:50PM +0100, Tim Kemna wrote:
> > I need the lifimage to setup my console to be the serial device. So I
can't
> > use netboot. Am I right?
>
> This is a 712, right?  I guess you do need a working graphical console
> in order to boot the lifimage and make the config change.  Do you not
> have access to a PS/2 keyboard and (sync-on-green?) monitor for long
> enough to do that?  My 17" iiyama monitor and a no-name 19" here work on
> my 712.
>
> Richard
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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On Wed, Dec 04, 2002 at 12:40:25PM +0100, Tim Kemna wrote:
> I changed the console by booting de lifimage. The machine now boots without
> a keyboard connected to it. Also when I push the power button it doesn't
> turn off. So I'm pretty sure the console is now the serial device.

Power button is completely unrelated to which console you are configured
for.  When things are working right, hitting the power button should
cause a clean shutdown of Linux followed by a power off.  Pretty neat.
There have been some issues in that area, but it worked for me last time
I tried.

> Now my problem is that I can't get any output. I'm using HyperTerminal 6.3
> on windows 98. The settings are 9600 8-N-1. My serial cable is D9F/D9F.
> Do I need to reboot the 712 every time I try to connect to it? Or can I just
> plug the cable into another COM port and try again?

You can move your serial cable while the system is up, no need to
reboot.

Do you mean no output, or do you mean you see kernel boot messages but
no login prompt?

If you see nothing at all, suspect your cable - may need a crossover
rather than 1:1 cable (or visaversa), or suspect your terminal emulator.

In any case, if you had this running on graphical console and have now
switched, you need to modify /etc/inittab to enable a getty on the
serial port.  Otherwise, no login prompt.

Even though you have switched conosles, inittab still sets up a getty on
the graphical console; plug your monitor and keyboard in as well, and
you can probably log in via that to fix /etc/inittab.  Assuming you can
be bothered to move your monitor and keyboard one more time ;-)
Otherwise, perhaps you can telnet or ssh in to it over the network.

Beware the keyboard is not designed for hotpluging, so to be absolutely
safe, you should move that with both systems powered off.

Richard



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I don't see any output at all. Does it matter which emulation mode I use? I
now use VT100.

Greetings,
Tim

----- Oorspronkelijk bericht -----
Van: "Richard Hirst" <rhirst@linuxcare.com>
Aan: "Tim Kemna" <t.kemna@student.utwente.nl>
CC: <parisc-linux@lists.parisc-linux.org>
Verzonden: woensdag 4 december 2002 13:02
Onderwerp: Re: [parisc-linux] lifimage


> On Wed, Dec 04, 2002 at 12:40:25PM +0100, Tim Kemna wrote:
> > I changed the console by booting de lifimage. The machine now boots
without
> > a keyboard connected to it. Also when I push the power button it doesn't
> > turn off. So I'm pretty sure the console is now the serial device.
>
> Power button is completely unrelated to which console you are configured
> for.  When things are working right, hitting the power button should
> cause a clean shutdown of Linux followed by a power off.  Pretty neat.
> There have been some issues in that area, but it worked for me last time
> I tried.
>
> > Now my problem is that I can't get any output. I'm using HyperTerminal
6.3
> > on windows 98. The settings are 9600 8-N-1. My serial cable is D9F/D9F.
> > Do I need to reboot the 712 every time I try to connect to it? Or can I
just
> > plug the cable into another COM port and try again?
>
> You can move your serial cable while the system is up, no need to
> reboot.
>
> Do you mean no output, or do you mean you see kernel boot messages but
> no login prompt?
>
> If you see nothing at all, suspect your cable - may need a crossover
> rather than 1:1 cable (or visaversa), or suspect your terminal emulator.
>
> In any case, if you had this running on graphical console and have now
> switched, you need to modify /etc/inittab to enable a getty on the
> serial port.  Otherwise, no login prompt.
>
> Even though you have switched conosles, inittab still sets up a getty on
> the graphical console; plug your monitor and keyboard in as well, and
> you can probably log in via that to fix /etc/inittab.  Assuming you can
> be bothered to move your monitor and keyboard one more time ;-)
> Otherwise, perhaps you can telnet or ssh in to it over the network.
>
> Beware the keyboard is not designed for hotpluging, so to be absolutely
> safe, you should move that with both systems powered off.
>
> Richard
>



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>
>If you see nothing at all, suspect your cable - may need a crossover
>rather than 1:1 cable (or visaversa), or suspect your terminal emulator.=

>
I am pretty sure that you need commonly named null-modem (ie crossover)
serial cable.

I do have to check if I still have somewhere the cable layout (sorry not
at disposal right now). 
But thing absolutely sure to be check is that pin 2 & 3 must be crossed
between the 2 plugs.

hth,
    Joel

*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be





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On Wed, Dec 04, 2002 at 01:16:20PM +0100, Tim Kemna wrote:
> I don't see any output at all. Does it matter which emulation mode I use? I
> now use VT100.

vt100 or similar (e.g. vt102) should be fine.



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On Tue, Dec 03, 2002 at 10:06:40PM -0700, LaMont Jones wrote:
> The first part (chage to init_airo_card and it's callers) allows us to call
> pci_enable_device like we need to.

We certainly do...

> The other part (the stuff inside #ifdef __hppa__) is a gross hack that works
> around some issues between dino and the card during initialization where the
> card fails to ack reads of several 2-byte aligned addresses.  With these
> changes, I have a working PCI4800 in my B180.

Grant, I think this is a long-standing bug (Jan 2000!) in Dino's port IO macros.
Look:

#define DINO_PORT_IN(type, size, mask) \
static u##size dino_in##size (struct pci_hba_data *d, u16 addr) \
{ \
        /* tell HW which IO Port address */ \
        gsc_writel((u32) addr & ~3, d->base_addr + DINO_PCI_ADDR); \
        /* generate I/O PORT read cycle */ \
        v = gsc_read##type(d->base_addr+DINO_IO_DATA+(addr&mask)); \

That '& ~3' clears the bottom two bits of the address, so we always read
from a 32-bit aligned address, even if we actually wanted to read the
other 16-bit word or one of the other bytes.  The PORT_OUT define doesn't
mask that way:

#define DINO_PORT_OUT(type, size, mask) \
static void dino_out##size (struct pci_hba_data *d, u16 addr, u##size val) \
{ \
        /* tell HW which CFG address */ \
        gsc_writel((u32) addr, d->base_addr + DINO_PCI_ADDR); \
        /* generate cfg write cycle */ \
        gsc_write##type(cpu_to_le##size(val), d->base_addr+DINO_IO_DATA+(addr&ma
sk)); \

(oops, looks like a comment wasn't updated ;-)

And HPUX doesn't mask addr that way either:

#define DINO_PRE_RD_IO(this, addr) \
        WRITE_UINT32(this->base_addr + DINO_PCI_ADDR, addr);

STATIC uint16_t
dino_rd_io_w()
{
        off += (uint32_t) phndl;
        DINO_PRE_RD_IO(h2p, off);
        data = READ_UINT16(h2p->base_addr + DINO_IO_DATA + (off & 2));

LaMont's doing a rebuild now to check it works, but this seems fairly
obvious to me.  Thoughts?  (Can _anyone_ remember what they were thinking
when they wrote code nearly three years ago?  ;-)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> Now my problem is that I can't get any output. I'm using HyperTerminal 6.3
> on windows 98. The settings are 9600 8-N-1. My serial cable is D9F/D9F.

this is perhaps a dumb question, but are you sure your hyperterminal
settings are correct? i've had a hard time getting hyperterminal to act
as a serial console for anything, be it PCs, PA-RISC machines, Sun
servers, .... of course, that could just be me ;)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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It's just you....hehe...I've done it on risc boxes quite often from my laptop.  I prefer to use Reflections though.
derek
 Randolph Chung <randolph@tausq.org> wrote:> Now my problem is that I can't get any output. I'm using HyperTerminal 6.3
> on windows 98. The settings are 9600 8-N-1. My serial cable is D9F/D9F.

this is perhaps a dumb question, but are you sure your hyperterminal
settings are correct? i've had a hard time getting hyperterminal to act
as a serial console for anything, be it PCs, PA-RISC machines, Sun
servers, .... of course, that could just be me ;)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


---------------------------------
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<P>It's just you....hehe...I've done it on risc boxes quite often from my laptop.&nbsp; I prefer to use Reflections though.
<P>derek
<P>&nbsp;<B><I>Randolph Chung &lt;randolph@tausq.org&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">&gt; Now my problem is that I can't get any output. I'm using HyperTerminal 6.3<BR>&gt; on windows 98. The settings are 9600 8-N-1. My serial cable is D9F/D9F.<BR><BR>this is perhaps a dumb question, but are you sure your hyperterminal<BR>settings are correct? i've had a hard time getting hyperterminal to act<BR>as a serial console for anything, be it PCs, PA-RISC machines, Sun<BR>servers, .... of course, that could just be me ;)<BR><BR>randolph<BR>-- <BR>Randolph Chung<BR>Debian GNU/Linux Developer, hppa/ia64 ports<BR>http://www.tausq.org/<BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listi
 nfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
<a href="http://rd.yahoo.com/mail/mailsig/*http://mailplus.yahoo.com">Yahoo! Mail Plus</a> - Powerful. Affordable. <a href="http://rd.yahoo.com/mail/mailsig/*http://mailplus.yahoo.com">Sign up now</a>
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I am pretty sure the settings are correct. Probably I'm using the wrong
cable.

----- Oorspronkelijk bericht -----
Van: "Randolph Chung" <randolph@tausq.org>
Aan: "Tim Kemna" <t.kemna@student.utwente.nl>
CC: <parisc-linux@lists.parisc-linux.org>
Verzonden: woensdag 4 december 2002 17:24
Onderwerp: Re: [parisc-linux] lifimage


> > Now my problem is that I can't get any output. I'm using HyperTerminal
6.3
> > on windows 98. The settings are 9600 8-N-1. My serial cable is D9F/D9F.
>
> this is perhaps a dumb question, but are you sure your hyperterminal
> settings are correct? i've had a hard time getting hyperterminal to act
> as a serial console for anything, be it PCs, PA-RISC machines, Sun
> servers, .... of course, that could just be me ;)
>
> randolph
> --
> Randolph Chung
> Debian GNU/Linux Developer, hppa/ia64 ports
> http://www.tausq.org/
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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From: grundler@dsl2.external.hp.com (Grant Grundler)
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On Wed, Dec 04, 2002 at 02:44:54PM +0000, Matthew Wilcox wrote:
> Grant, I think this is a long-standing bug (Jan 2000!) in
> Dino's port IO macros.

It sounds like there is...

...
> That '& ~3' clears the bottom two bits of the address, so we always read
> from a 32-bit aligned address, even if we actually wanted to read the
> other 16-bit word or one of the other bytes.

The Dino ERS clearly says the AD[0:1] are used for IO Port space.

I gather IO_DATA behaves differently than MEM_DATA.
MEM_DATA definitely uses byte enables to manage subword bytes
and ignores the lower two bits of the address. The GSC byte enables
are forwarded to the PCI bus when doing subword MMIO reads.
Because MEM_DATA was added much later, it seems to have been implemented
with more insight into how GSC/PCI can interact.

> The PORT_OUT define doesn't mask that way:

Right.

...
> LaMont's doing a rebuild now to check it works, but this seems fairly
> obvious to me.  Thoughts?  (Can _anyone_ remember what they were thinking
> when they wrote code nearly three years ago?  ;-)

You are on the right track. And no, I don't remember.

thanks,
grant


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Subject: [parisc-linux] FATAL: kernel too old
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I'm getting the following error building glibc-2.3.1-5:

CPP='/home/dave/opt/gnu/bin/gcc -E -x c-header'  /home/dave/glibc-2.3.1-5/glibc-
2.3.1/objdir/elf/ld.so.1 --library-path /home/dave/glibc-2.3.1-5/glibc-2.3.1/obj
dir:/home/dave/glibc-2.3.1-5/glibc-2.3.1/objdir/math:/home/dave/glibc-2.3.1-5/gl
ibc-2.3.1/objdir/elf:/home/dave/glibc-2.3.1-5/glibc-2.3.1/objdir/dlfcn:/home/dav
e/glibc-2.3.1-5/glibc-2.3.1/objdir/nss:/home/dave/glibc-2.3.1-5/glibc-2.3.1/objd
ir/nis:/home/dave/glibc-2.3.1-5/glibc-2.3.1/objdir/rt:/home/dave/glibc-2.3.1-5/g
libc-2.3.1/objdir/resolv:/home/dave/glibc-2.3.1-5/glibc-2.3.1/objdir/crypt:/home
/dave/glibc-2.3.1-5/glibc-2.3.1/objdir/linuxthreads /home/dave/glibc-2.3.1-5/gli
bc-2.3.1/objdir/sunrpc/rpcgen -Y ../scripts -c rpcsvc/bootparam_prot.x -o /home/
dave/glibc-2.3.1-5/glibc-2.3.1/objdir/sunrpc/xbootparam_prot.T
FATAL: kernel too old
make[2]: *** [/home/dave/glibc-2.3.1-5/glibc-2.3.1/objdir/sunrpc/xbootparam_prot
.stmp] Error 1

Is 2.4.18-pa52 really too old?

I configured with

../glibc/configure --build=hppa-linux --host=hppa-linux --target=hppa-linux --prefix=/home/dave/opt/gnu --disable-profile --without-cvs --enable-add-ons --enable-hacker-mode --enable-kernel=2.4.8

Oh, I noticed that hppa-linux is not listed in INSTALL or README.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Check that _dl_osversion (_rtld_global._dl_osversion) is getting initialized.


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On Wed, 4 Dec 2002, John David Anglin wrote:

> I'm getting the following error building glibc-2.3.1-5:
>
> CPP='/home/dave/opt/gnu/bin/gcc -E -x c-header'  /home/dave/glibc-2.3.1-5/glibc-
> 2.3.1/objdir/elf/ld.so.1 --library-path /home/dave/glibc-2.3.1-5/glibc-2.3.1/obj
> dir:/home/dave/glibc-2.3.1-5/glibc-2.3.1/objdir/math:/home/dave/glibc-2.3.1-5/gl
> ibc-2.3.1/objdir/elf:/home/dave/glibc-2.3.1-5/glibc-2.3.1/objdir/dlfcn:/home/dav
> e/glibc-2.3.1-5/glibc-2.3.1/objdir/nss:/home/dave/glibc-2.3.1-5/glibc-2.3.1/objd
> ir/nis:/home/dave/glibc-2.3.1-5/glibc-2.3.1/objdir/rt:/home/dave/glibc-2.3.1-5/g
> libc-2.3.1/objdir/resolv:/home/dave/glibc-2.3.1-5/glibc-2.3.1/objdir/crypt:/home
> /dave/glibc-2.3.1-5/glibc-2.3.1/objdir/linuxthreads /home/dave/glibc-2.3.1-5/gli
> bc-2.3.1/objdir/sunrpc/rpcgen -Y ../scripts -c rpcsvc/bootparam_prot.x -o /home/
> dave/glibc-2.3.1-5/glibc-2.3.1/objdir/sunrpc/xbootparam_prot.T
> FATAL: kernel too old
> make[2]: *** [/home/dave/glibc-2.3.1-5/glibc-2.3.1/objdir/sunrpc/xbootparam_prot
> .stmp] Error 1
>
> Is 2.4.18-pa52 really too old?
>
> I configured with
>
> ../glibc/configure --build=hppa-linux --host=hppa-linux --target=hppa-linux
> --prefix=/home/dave/opt/gnu --disable-profile --without-cvs
> --enable-add-ons --enable-hacker-mode --enable-kernel=2.4.8
                                                        ^^^^^

2.4.8 ? Not 2.4.18? But I don't know whether this make a difference!?

BTW, wasn't there a option for --with-kernel-headers= ?
Perhaps the kernel headers weren't picked up properly ...

greetings max



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On Wed, Dec 04, 2002 at 05:13:07PM -0500, John David Anglin wrote:

> Is 2.4.18-pa52 really too old?

Yes.  hppa-linux requires 2.4.19

Tks,
Jeff Bailey



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> On Wed, Dec 04, 2002 at 05:13:07PM -0500, John David Anglin wrote:
> 
> > Is 2.4.18-pa52 really too old?
> 
> Yes.  hppa-linux requires 2.4.19

Ok, I try one of the other builds but none so far have been particularly
stable on a rp2470c.

Thanks,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Wed, Dec 04, 2002 at 05:42:00PM -0500, John David Anglin wrote:
> Ok, I try one of the other builds but none so far have been particularly
> stable on a rp2470c.

Dave,
I can build a UP 2.4.20 for the rp2470 and see how that fairs.
SMP has in fact not been especially stable for the 2.4.19 hppa releases.

thanks,
grant


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> Dave,
> I can build a UP 2.4.20 for the rp2470 and see how that fairs.
> SMP has in fact not been especially stable for the 2.4.19 hppa releases.

That would be great.  I was going to try vmlinux-2.4.20-rc1-pa7
after the gcc testsuite run that is in progress completes.  I seem
to recall that vmlinux-2.4.20-rc1-pa7 wasn't very stable, so it
would be nice to find something later than 2.4.18 that works reasonably
reliably.

I was trying to get a feel whether of not the current gcc mainline
would successfully build the latest glibc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] GNU/Libc 2.3.1 on HP-PARISC requires >= 2.4.19 kernel.
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
	Randolph Chung <tausq@debian.org>
To: debian-hppa@lists.debian.org,
	parisc-linux@lists.parisc-linux.org, debian-glibc@lists.debian.org
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debian, parisc, debian-glibc,

Hi, my name is Carlos, and I cause all your nightmares with glibc on
HPPA :)

Currently in unstable for HPPA - glibc 2.3.1-5
Currently in testing  for HPPA - glibc 2.2.5-15

What?
=====
During the changeover from GNU/Libc 2.2.x to 2.3.x HPPA has changed
it's minimum GNU/Libc kernel version to 2.4.19.

Why?
====
- More testing.
- Bugs fixed in unaligned handlers.
- Trap handler fixes.
- More things than you can shake a stick at, and all thanks to the
  wonderful kernel hacking team that parisc-linux has.

No.
===
If you do not wish to upgrade your kernel then I suggest you pin glibc at
the particular version that you feel is good for you. The debian glibc
package for 2.3.1-6 has a preinst check against the system kernel version
(e.g. You can't install it without the right kernel).

Sorry.
======
I apologize for the initial oversight that meant there was no preinst
check, and one or two individuals have suffered through some serious
system reconstruction. I apologize. I really do. I owe you both beers :}

I recommend that you _do_ _not_ upgrade glibc on HPPA until 2.3.1-6.

When?
=====

glibc 2.3.1-6 is going into unstable in the next few days (time
permitting).

Thanks for your time :)

Cheers,
Carlos O'Donell.



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Randolph Chung said:
> > Now my problem is that I can't get any output. I'm using HyperTerminal 6.3
> > on windows 98. The settings are 9600 8-N-1. My serial cable is D9F/D9F.
> 
> this is perhaps a dumb question, but are you sure your hyperterminal
> settings are correct? i've had a hard time getting hyperterminal to act
> as a serial console for anything, be it PCs, PA-RISC machines, Sun
> servers, .... of course, that could just be me ;)
> 
> randolph

Also, are you sure that HyperTerminal is looking at the right serial
port?  Can you stick a modem on it, see an 'OK' prompt, issue 'ATZ' etc?

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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Subject: [parisc-linux] cvs/patch2.4.20-paxx still against vanilla 2.4.19?
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Thanks in advance,
    Joel

*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be





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The problem was the serial cable. I borrowed a crossed one and that worked
right away.

Tim

----- Oorspronkelijk bericht -----
Van: "Andrew Shugg" <andrew@neep.com.au>
Aan: <parisc-linux@lists.parisc-linux.org>
Verzonden: donderdag 5 december 2002 3:26
Onderwerp: Re: [parisc-linux] lifimage


> Randolph Chung said:
> > > Now my problem is that I can't get any output. I'm using HyperTerminal
6.3
> > > on windows 98. The settings are 9600 8-N-1. My serial cable is
D9F/D9F.
> >
> > this is perhaps a dumb question, but are you sure your hyperterminal
> > settings are correct? i've had a hard time getting hyperterminal to act
> > as a serial console for anything, be it PCs, PA-RISC machines, Sun
> > servers, .... of course, that could just be me ;)
> >
> > randolph
>
> Also, are you sure that HyperTerminal is looking at the right serial
> port?  Can you stick a modem on it, see an 'OK' prompt, issue 'ATZ' etc?
>
> Andrew.
>
> --
> Andrew Shugg <andrew@neep.com.au>
http://www.neep.com.au/
>
> "Just remember, Mr Fawlty, there's always someone worse off than
yourself."
> "Is there?  Well I'd like to meet him.  I could do with a good laugh."
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: GNU/Libc 2.3.1 on HP-PARISC requires >= 2.4.19 kernel.
Date: Thu, 5 Dec 2002 13:31:39 +0000
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On Wed, Dec 04, 2002 at 08:08:45PM -0500, Carlos O'Donell wrote:
> What?
> =====
> During the changeover from GNU/Libc 2.2.x to 2.3.x HPPA has changed
> it's minimum GNU/Libc kernel version to 2.4.19.

I feel this was a mistake.

> Why?
> ====
> - More testing.
> - Bugs fixed in unaligned handlers.
> - Trap handler fixes.
> - More things than you can shake a stick at, and all thanks to the
>   wonderful kernel hacking team that parisc-linux has.

That's great, but there are still problems with 2.4.19 and 2.4.20.  I think
you're doing our users a disservice by requiring them to upgrade to 2.4.19.
Why not relax the minimum version requirement down to 2.4.17?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: "Abel Mamfoumby" <moumboungou@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Driver for A4071B on C100 workstation
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I don't know how I can do to use the internal port!






>From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
>To: Abel Mamfoumby 
><moumboungou@hotmail.com>,parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] Driver for A4071B on C100 workstation
>Date: Thu, 28 Nov 2002 06:44:30 -0800 (PST)
>
>
>I had that same card in my C180 and couldn't get it to work.  You will 
>probably be better off using the internal graphics port on the C100.  The 
>internal port only yields 8 bit color, but I don't think that A4071B card 
>is supported at the moment.
>derek
>  Abel Mamfoumby <moumboungou@hotmail.com> wrote:Hello,
>I have just installed The Debian HPPA Linux 3.0r0 on my workstation C100 /
>9000. And I have the A4071B Graphics card. Unfortunately I can't configure
>X11. is there someone who can help me?
>ThankU
>
>Moumboungou
>
>
>
>
>
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OmJydW5vX3ZpZGFsQGhwLmNvbQp0aXRsZTpFeHBlcnQgTG9naWNpZWwgRW52aXJvbm5lbWVu
dCBIYXV0ZSBEaXNwb25pYmlsaXTpCmFkcjtxdW90ZWQtcHJpbnRhYmxlOjs7SFAgRnJhbmNl
PTBEPTBBO1ouQSBkZSBDb3VydGFib2V1ZjsxIEF2LiBkdSBDYW5hZGE7OTE5NDcgTGVzIFVs
aXMgY2VkZXg7RnJhbmNlCngtbW96aWxsYS1jcHQ6OzI2MjA4CmZuOlZJREFMIEJydW5vCmVu
ZDp2Y2FyZAo=
--------------55C7F9ECC99E2F5FC3E3B5CB--



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Re: GNU/Libc 2.3.1 on HP-PARISC requires >= 2.4.19 kernel.
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Xref: news.gmane.org gmane.linux.ports.parisc:17026

> > Why?
> > ====
> > - More testing.
> > - Bugs fixed in unaligned handlers.
> > - Trap handler fixes.
> > - More things than you can shake a stick at, and all thanks to the
> >   wonderful kernel hacking team that parisc-linux has.
> 
> That's great, but there are still problems with 2.4.19 and 2.4.20.  I think
> you're doing our users a disservice by requiring them to upgrade to 2.4.19.
> Why not relax the minimum version requirement down to 2.4.17?

I agree that it was probably a mistake at the time since 2.4.19 seemed
to solve a lot of problems... though in hindsight they are still too
unstable to push forward on all of our users.

Hrmm... *Carlos mulls for a few hours*

I'll relax it to 2.4.17 in debian, but I'll leave the upstream
requirement of 2.4.19.

c.



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From: Paul Bame <bame@fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] panic while "set serial" with 2.4.20-pa9
Date: Thu, 05 Dec 2002 09:26:49 -0700
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To: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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> This is a multi-part message in MIME format.
> --------------11B10191D25EDD401FC846C9
> Content-Type: text/plain; charset=iso-8859-1
> Content-Transfer-Encoding: base64
> 
> ICAgIEhpDQpJJ20gY29tcGlsaW5nIGEgbmV3IGtlcm5lbCwgYnV0IGl0IHBhbmljIHdoaWxl
> IGRvaW5nICJzZXQgc2VyaWFsIjoNCg0KU2VyaWFsIGRyaXZlciB2ZXJzaW9uIDUuMDVjICgy
> MDAxLTA3LTA4KSB3aXRoIE1BTllfUE9SVFMgU0hBUkVfSVJRIFNFUklBTF9QQ0kgZW5hYmxl

It's probably not the new kernel. setserial is quite dangerous and
bypasses any driver-related safety.  I often disable or remove it on
development machines and it's often fatal after a serial configuration
change.

The two places I've suffered are when I removed serial ports and
rebooted, and when I booted a second machine (with different port setup)
from a disk made from the first machine.  In both cases setserial tried
to restore settings using addresses which didn't exist --> panic.

	-P


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: GNU/Libc 2.3.1 on HP-PARISC requires >= 2.4.19 kernel.
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> Hi, my name is Carlos, and I cause all your nightmares with glibc on
> HPPA :)
> [...]
> I recommend that you _do_ _not_ upgrade glibc on HPPA until 2.3.1-6.

Being perverse, I tried installing 2.3.1-5.  I hit the same problem
that Joel mentioned previously, the old dynamic loader doesn't define
GLIBC_PRIVATE.  I was trying to install glibc privately in a prefix of
my selection.  I have been using LD_LIBRARY_PATH to select my library
path.  However, this no longer works since all system binaries are
linked using /lib/ld.so.1 and it isn't compatible with the 2.3.1
libraries.  Is there a way around this?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Xref: news.gmane.org gmane.linux.ports.parisc:17029

Hi all,

Working on lkcd port of Bruno Vidal on a b2k (gcc-3.0.4), I encounter the=

following bug:
Dump compression value is 0x0 ...
Dump device index 0 ...
Initialise iodc dump device:dump_iodc_init(): reset done
dump_iodc_open(): get module info : 16
dump_iodc_open(): get ENTRY INIT.
kernel BUG at superio.c:109!
WARNING! Stack pointer and cr30 do not correspond!
Dumping virtual address stack instead

What is troubling me in the code is the contradiction between code and co=
mments:
        if ((results & 0x80) =3D=3D 0) {
#ifndef CONFIG_SMP
                /* HACK: need to investigate why this happens if SMP enab=
led
*/
                BUG(); /* This shouldn't happen */
#endif
                return;
        }

[I am running here a kernel 2.4.19-pa24 + dump_patch of bruno but it is
still  the same in 2.4.20]

Can somebody could confirm me what is right: code or comment?

Thanks in advance,
    Joel

*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be





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Subject: Re: [parisc-linux] Re: GNU/Libc 2.3.1 on HP-PARISC requires >= 2.4.19 
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John David Anglin wrote:
> 
> > Hi, my name is Carlos, and I cause all your nightmares with glibc on
> > HPPA :)
> > [...]
> > I recommend that you _do_ _not_ upgrade glibc on HPPA until 2.3.1-6.
> 
> Being perverse, I tried installing 2.3.1-5.  I hit the same problem
> that Joel mentioned previously, the old dynamic loader doesn't define
> GLIBC_PRIVATE.  I was trying to install glibc privately in a prefix of
> my selection.  I have been using LD_LIBRARY_PATH to select my library
> path.  However, this no longer works since all system binaries are
> linked using /lib/ld.so.1 and it isn't compatible with the 2.3.1
> libraries.  Is there a way around this?

Well, I don't think it is perverse. I have already more than 10 days
uptime with a machine, that runs completely with 2.3.1 (and this machine
was only for about 13h idle).

In order to run with the new ld.so, you may try the following:

<prefix>/lib/ld.so.1 --library-path <prefix>/lib:<prefix>/usr/usr/lib
command

or you set up a chroot system with all needed programs.

Berthold


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Xref: news.gmane.org gmane.linux.ports.parisc:17031

	I have a question about the parisc machines that have little
or not consistent memory available.  I'm interested in both the
parisc machines that Linux currently supports and those that it
has not been ported to.

	My question is: what kind of inconsistent memory do they have?
I am most interested in knowing if you can at least allocate memory
may be read cached but is write through.  If you can select
write-through and you write a 4-byte word aligned on a 4-byte
boundary, will you only write those four bytes without writing back
any potentially stale cached data?  How about if you write a char or a
short?  If these machines support memory that need read barriers but
does not have the hazard of potentially writing back incorrect cached
data, that may simplify adding support for these machines to more
drivers.

	I am asking because this is relevant to a discussion on lkml
about some changes that James Bottomley posted to generalize the
pci_xxx DMA mapping routines to generic devices.

Adam J. Richter     __     ______________   575 Oroville Road
adam@yggdrasil.com     \ /                  Milpitas, California 95035
+1 408 309-6081         | g g d r a s i l   United States of America
                         "Free Software For The Rest Of Us."


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From: lamont@b180.mmjgroup.com (LaMont Jones)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] airo.c fix for hppa and others
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Xref: news.gmane.org gmane.linux.ports.parisc:17032

Here's the patch that actually works.

airo.c is vs 2.4.20, the checksum.h patch (which is purely performance) is vs
2.4.19 which is probably the same as 2.4.20...

The airo.c patch is critical and sufficient.  The other is for comment,
should anyone care.

lamont

diff -ur x/kernel-source-2.4.19-hppa/drivers/net/wireless/airo.c kernel-source-2.4.19-hppa/drivers/net/wireless/airo.c
--- x/kernel-source-2.4.19-hppa/drivers/net/wireless/airo.c	2002-12-05 15:13:42.000000000 -0700
+++ kernel-source-2.4.19-hppa/drivers/net/wireless/airo.c	2002-12-05 15:15:24.000000000 -0700
@@ -1966,7 +1966,7 @@
 #pragma pack()
 			u16 gap;
 			u16 tmpbuf[4];
-			u16 *buffer;
+			u16 *buffer=NULL;
 
 			fid = IN4500( apriv, RXFID );
 
@@ -2011,13 +2011,14 @@
 				} else
 					hdrlen = ETH_ALEN * 2;
 
-				skb = dev_alloc_skb( len + hdrlen + 2 );
+				skb = dev_alloc_skb( len + hdrlen + 4 );
 				if ( !skb ) {
 					apriv->stats.rx_dropped++;
 					len = 0;
 				}
 			}
 			if (len) {
+				skb_reserve(skb, 2);	/* Align IP on 16 byte boundaries */
 				buffer = (u16*)skb_put (skb, len + hdrlen);
 				if (apriv->flags & FLAG_802_11) {
 					buffer[0] = fc;
@@ -4008,6 +4009,10 @@
 {
 	struct net_device *dev;
 
+	if (pci_enable_device(pdev))
+		return -ENODEV;
+	pci_set_master(pdev);
+
 	dev = init_airo_card(pdev->irq,	pdev->resource[2].start, 0);
 	if (!dev)
 		return -ENODEV;
diff -ur x/kernel-source-2.4.19-hppa/include/asm-parisc/checksum.h kernel-source-2.4.19-hppa/include/asm-parisc/checksum.h
--- x/kernel-source-2.4.19-hppa/include/asm-parisc/checksum.h	2002-02-12 22:16:45.000000000 -0700
+++ kernel-source-2.4.19-hppa/include/asm-parisc/checksum.h	2002-12-05 12:03:48.000000000 -0700
@@ -54,7 +54,8 @@
 /*
  *	Optimized for IP headers, which always checksum on 4 octet boundaries.
  *
- *	Written by Randolph Chung <tausq@debian.org>
+ *	Written by Randolph Chung <tausq@debian.org>, and then mucked with by
+ *	LaMont Jones <lamont@debian.org>
  */
 static inline unsigned short ip_fast_csum(unsigned char * iph,
 					  unsigned int ihl) {
@@ -63,27 +64,23 @@
 
 	__asm__ __volatile__ (
 "	ldws,ma		4(%1), %0\n"
-"	addi		-4, %2, %2\n"
-"	comib,>=	0, %2, 2f\n"
+"	addib,<=	-4, %2, 2f\n"
 "\n"
-"	ldws,ma		4(%1), %%r19\n"
-"	add		%0, %%r19, %0\n"
-"	ldws,ma		4(%1), %%r19\n"
-"	addc		%0, %%r19, %0\n"
-"	ldws,ma		4(%1), %%r19\n"
+"	ldws		4(%1), %%r20\n"
+"	ldws		8(%1), %%r21\n"
+"	add		%0, %%r20, %0\n"
+"	ldws,ma		12(%1), %%r19\n"
+"	addc		%0, %%r21, %0\n"
 "	addc		%0, %%r19, %0\n"
 "1:	ldws,ma		4(%1), %%r19\n"
-"	addib,<>	-1, %2, 1b\n"
+"	addib,<		0, %2, 1b\n"
 "	addc		%0, %%r19, %0\n"
-"	addc		%0, %%r0, %0\n"
 "\n"
-"	zdepi		-1, 31, 16, %%r19\n"
-"	and		%0, %%r19, %%r20\n"
+"	extru		%0, 31, 16, %%r20\n"
 "	extru		%0, 15, 16, %%r21\n"
-"	add		%%r20, %%r21, %0\n"
-"	and		%0, %%r19, %%r20\n"
+"	addc		%%r20, %%r21, %0\n"
 "	extru		%0, 15, 16, %%r21\n"
-"	add		%%r20, %%r21, %0\n"
+"	add		%0, %%r21, %0\n"
 "	subi		-1, %0, %0\n"
 "2:\n"
 	: "=r" (sum), "=r" (iph), "=r" (ihl)


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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Question about parisc machines with little or no consistent memory
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On Thu, Dec 05, 2002 at 01:53:28PM -0800, Adam J. Richter wrote:
> 	I have a question about the parisc machines that have little
> or not consistent memory available.  I'm interested in both the
> parisc machines that Linux currently supports and those that it
> has not been ported to.

Machines we support:

Astro/Elroy based: lots of consistent memory available (IOTLB)
CCIO based: lots of consistent memory available (IOTLB)
PCXL/L2 processors: 128? MB available, uncachable.
PCXS/T processors: no consistent memory available.

Machines we don't support:

V class: Can't really comment how much is available, the docs confused me ;-)
T class: No consistent memory available, though there is an IOMMU.

> 	My question is: what kind of inconsistent memory do they have?
> I am most interested in knowing if you can at least allocate memory
> may be read cached but is write through.  If you can select
> write-through and you write a 4-byte word aligned on a 4-byte
> boundary, will you only write those four bytes without writing back
> any potentially stale cached data?  How about if you write a char or a
> short?  If these machines support memory that need read barriers but
> does not have the hazard of potentially writing back incorrect cached
> data, that may simplify adding support for these machines to more
> drivers.

Basically, no.  The memory subsystems on these things can't cope with the
CPU doing a non-cacheline-{sized,aligned} write, so we can't even do
uncachable memory (except on PCX-L and -L2 where the memory controller can
cope with smaller writes).

Caches on PA are always writeback, never writethrough.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] Re: airo.c fix for hppa and others
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Xref: news.gmane.org gmane.linux.ports.parisc:17034

On Thu, Dec 05, 2002 at 03:18:45PM -0700, LaMont Jones wrote:

And lets not forget the (already committed?) dino patch:

lamont

diff -ur x/kernel-source-2.4.19-hppa/drivers/gsc/dino.c kernel-source-2.4.19-hppa/drivers/gsc/dino.c
--- x/kernel-source-2.4.19-hppa/drivers/gsc/dino.c	2002-07-14 13:51:42.000000000 -0600
+++ kernel-source-2.4.19-hppa/drivers/gsc/dino.c	2002-12-04 07:07:52.000000000 -0700
@@ -251,7 +251,7 @@
 	unsigned long flags; \
 	spin_lock_irqsave(&(DINO_DEV(d)->dinosaur_pen), flags); \
 	/* tell HW which IO Port address */ \
-	gsc_writel((u32) addr & ~3, d->base_addr + DINO_PCI_ADDR); \
+	gsc_writel((u32) addr, d->base_addr + DINO_PCI_ADDR); \
 	/* generate I/O PORT read cycle */ \
 	v = gsc_read##type(d->base_addr+DINO_IO_DATA+(addr&mask)); \
 	spin_unlock_irqrestore(&(DINO_DEV(d)->dinosaur_pen), flags); \


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From: Chuck Slivkoff <caslivkoff@telocity.com>
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Subject: Re: [parisc-linux] Driver for A4071B on C100 workstation
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	parisc-linux@lists.parisc-linux.org
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I helped a colleague get the A4071B working in a 725/100 last week.  
Config in a Cxxx box should be the same. You have to match the  
dimensions and depth of the fb, as reported by the kernel on boot.

-chuck

http://lists.debian.org/debian-hppa/2002/debian-hppa-200212/ 
msg00011.html


On Thursday, Dec 5, 2002, at 08:34 US/Eastern, Abel Mamfoumby wrote:

> I don't know how I can do to use the internal port!
>
>
>> From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
>> To: Abel Mamfoumby  
>> <moumboungou@hotmail.com>,parisc-linux@lists.parisc-linux.org
>> Subject: Re: [parisc-linux] Driver for A4071B on C100 workstation
>> Date: Thu, 28 Nov 2002 06:44:30 -0800 (PST)
>>
>>
>> I had that same card in my C180 and couldn't get it to work.  You  
>> will probably be better off using the internal graphics port on the  
>> C100.  The internal port only yields 8 bit color, but I don't think  
>> that A4071B card is supported at the moment.
>> derek
>>  Abel Mamfoumby <moumboungou@hotmail.com> wrote:Hello,
>> I have just installed The Debian HPPA Linux 3.0r0 on my workstation  
>> C100 /
>> 9000. And I have the A4071B Graphics card. Unfortunately I can't  
>> configure
>> X11. is there someone who can help me?
>> ThankU
>>
>> Moumboungou
>>
>>
>>
>>
>>
>> _________________________________________________________________
>> MSN Messenger : discutez en direct avec vos amis !
>> http://www.msn.fr/msger/default.asp
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>>
>>
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Xref: news.gmane.org gmane.linux.ports.parisc:17036

Q: Given a 2.4.19 kernel, how do you get it to automatically reboot on crash?

A: see below.  The first one breaks the loop on dumping the stack.  The
   second part resets the machine in parisc_terminate().

thoughts?
lamont

diff -ur x/kernel-source-2.4.19-hppa/arch/parisc/kernel/traps.c kernel-source-2.4.19-hppa/arch/parisc/kernel/traps.c
--- x/kernel-source-2.4.19-hppa/arch/parisc/kernel/traps.c	2002-10-19 16:25:59.000000000 -0600
+++ kernel-source-2.4.19-hppa/arch/parisc/kernel/traps.c	2002-12-06 00:07:40.000000000 -0700
@@ -148,6 +148,11 @@
 void show_stack(struct pt_regs *regs)
 {
 #if 1
+	static int tried_stack=0;
+	if (tried_stack)
+		return;
+	tried_stack++;
+
 	/* If regs->sr[7] == 0, we are on a kernel stack */
 	if (regs->sr[7] == 0) {
 
@@ -462,6 +467,12 @@
 	 * system will shut down immediately right here. */
 	pdc_soft_power_button(0);
 	
+	{
+		static int tried_once=0;
+		if (!tried_once++)
+			__raw_writel(5,0xfffe0030);
+	}
+	
 	for(;;)
 	    ;
 }


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Subject: RE: [parisc-linux] superio.c -BUG
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Xref: news.gmane.org gmane.linux.ports.parisc:17037

Hi all,
>
>Working on lkcd port of Bruno Vidal on a b2k (gcc-3.0.4), I encounter th=
e
>following bug:
>Dump compression value is 0x0 ...
>Dump device index 0 ...
>Initialise iodc dump device:dump_iodc_init(): reset done
>dump_iodc_open(): get module info : 16
>dump_iodc_open(): get ENTRY INIT.
>kernel BUG at superio.c:109!
>WARNING! Stack pointer and cr30 do not correspond!
>Dumping virtual address stack instead
>
>What is troubling me in the code is the contradiction between code and
comments:
>        if ((results & 0x80) =3D=3D 0) {
>#ifndef CONFIG_SMP
>                /* HACK: need to investigate why this happens if SMP ena=
bled
>*/
>                BUG(); /* This shouldn't happen */
>#endif
>                return;
>        }
>
>[I am running here a kernel 2.4.19-pa24 + dump_patch of bruno but it is
>still  the same in 2.4.20]
>
>Can somebody could confirm me what is right: code or comment?
>
Stupid question isn't it? (Sorry I need rest)

Never the less, I would go further and notice that:
 results =3D inb(IC_PCI1+0);

I well find the declaration of inb as extern unsigned char inb(int addr);=

(in io.h) but can somebody explain me where this function is defined (I
scan all .c .h .s and do not find)?

Just to see if a wait does not have to be inserted after previous outb?

Thanks for attention,
    Joel



*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be





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On Fri, Dec 06, 2002 at 03:10:01PM +0100, jsoe0708@tiscali.be wrote:
> Never the less, I would go further and notice that:
>  results = inb(IC_PCI1+0);
> 
> I well find the declaration of inb as extern unsigned char inb(int addr);
> (in io.h) but can somebody explain me where this function is defined (I
> scan all .c .h .s and do not find)?

arch/parisc/kernel/pci.c, starting at line 82

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> Q: Given a 2.4.19 kernel, how do you get it to automatically reboot on crash?
> 
> A: see below.  The first one breaks the loop on dumping the stack.  The
>    second part resets the machine in parisc_terminate().

Looks awesome in my opinion. I've needed something like this for my
cluster, it gets anyone when machines don't reset on crash :)

Though having this be optional seems like an important feature to add.

c.



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From: Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>
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On Fri, Dec 06, 2002 at 11:22:27AM -0500, Carlos O'Donell wrote:
> Looks awesome in my opinion. I've needed something like this for my
> cluster, it gets anyone when machines don't reset on crash :)
> Though having this be optional seems like an important feature to add.

I want a /proc entry to tweak it... :-)

lamont


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> nothing more, it stay here forever.......
> 
> It is an A500 in SMP/64.
> 
> A normal boot with 2.4.19
> scsi1 : sym53c8xx-1.7.3c-20010512
> scsi2 : sym53c8xx-1.7.3c-20010512
> scsi3 : sym53c8xx-1.7.3c-20010512
>   Vendor: SEAGATE   Model: ST31230N          Rev: HP05
>   Type:   Direct-Access                      ANSI SCSI revision: 02
>   Vendor: SEAGATE   Model: ST318404LC        Rev: HP04

Bruno, can you try the sym2 driver and let us know how it goes?

CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64

there was a similar problem with the sym2 driver that was fixed
recently.

alternatively, please try turning on CONFIG_DEBUG_SPINLOCK in your
kernel and try running the sym53c8xx driver and see if that helps
identify the problem...

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: "FARINATI,LEANDRO (HP-Brazil,ex1)" <leandro.farinati@hp.com>
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Hi people,

	I'm tryng link some object files (c and asm files already compiled)
and I got an error. 
	Could someone help-me to solve it?

	The main function is in main.c(main.o)
	Command Line:  gcc -o exec main.o asm.o .file1.o file2.o
	Error:
		/usr/lib/gcc-lib/hppa-linux/3.0.4/../../../crt1.o: In
function `_start':
	
/usr/lib/gcc-lib/hppa-linux/3.0.4/../../../crt1.o(.text+0x0): undefined
reference to `main'
	
/usr/lib/gcc-lib/hppa-linux/3.0.4/../../../crt1.o(.text+0x4): undefined
reference to `main'
		collect2: ld returned 1 exit status

Thanks in advance,

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com





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> 	The main function is in main.c(main.o)

Are you sure?  You said the modules were precompiled.  You can
use nm, objdump or readelf to look at the symbols main.o.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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All

I am new to all of this so bear with me.

My hardware is a 710 48 Meg of RAM 1 Gig disk at scsi.6.0 NEC CD drive at
scsi.3.0

I downloaded debian-30r0-hppa-binary-1.iso and burned a CD.

>From BOOT_ADMIN> I enter "boot scsi.3.0

message is:

Trying scsi.30.
Boot path initialized
Attempting to load IPL
IPL error: Bad IPL checksum

then searches and lists potential boot devices.

The simple question is what do I do now?

Thanks for the help.

John




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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: Re: [parisc-linux] Bad IPL checksum error on 710
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On Fri, Dec 06, 2002 at 03:46:06PM -0500, John K. wrote:
> I downloaded debian-30r0-hppa-binary-1.iso and burned a CD.
...
> Attempting to load IPL
> IPL error: Bad IPL checksum
...
> The simple question is what do I do now?

The CD is a coaster.
The ISO definitely works on all the machines I have around here.

I suggest using a linux machine with a CD writer and "cdrecord -data".
The "cdrecord How-to" describes the 2-3 stesp - very simple.

grant


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Subject: [parisc-linux] [PATCH] Add SHMLBA define to shm.h (HPPA).
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libc-alpha,

Kernel headers and glibc headers are mildly out of sync on HPPA, I'll
keep my eye out for further inconsistencies. This particular issue was
found while building the latest debian X packages. Odd that it didn't 
turn up before.

c.
---

2002-12-07  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* sysdeps/unix/sysv/linux/hppa/bits/shm.h: Added SHMLBA define.


--U+BazGySraz5kW0T
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=03-glibc23-hppa-shm

--- glibc-2.3.1/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2002-12-07 19:42:52.000000000 -0500
+++ glibc-2.3.1/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2002-12-07 19:33:10.000000000 -0500
@@ -36,6 +36,8 @@
 #define SHM_LOCK	11		/* lock segment (root only) */
 #define SHM_UNLOCK	12		/* unlock segment (root only) */
 
+/* Segment low boundary address multiple */
+#define SHMLBA 0x00400000   /* attach addr needs to be 4 Mb aligned */
 
 /* Type to count number of attaches.  */
 typedef unsigned long int shmatt_t;

--U+BazGySraz5kW0T--


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Carlos O'Donell wrote:

> 2002-12-07  Carlos O'Donell  <carlos@baldric.uwo.ca>
> 
> 	* sysdeps/unix/sysv/linux/hppa/bits/shm.h: Added SHMLBA define.

I've added the patch.  Thanks,

-- 
--------------.                        ,-.            444 Castro Street
Ulrich Drepper \    ,-----------------'   \ Mountain View, CA 94041 USA
Red Hat         `--' drepper at redhat.com `---------------------------



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> > I just happened to notice that the system almost totally stalled running
> > the test.  The load average jumps from 1 to about 9.  You just have to
> > compile and run to see the effect.  Line 127 writes to unmapped memory
> > and causes multiple entries in /var/log/debug.
> 
> Dave, can you send the test program and details to the list? i didn't
> see the beginning of this thread and am not sure which program you are
> refering to.

Here it is.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

#include <sys/types.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <signal.h>
#include <setjmp.h>
#include <stdio.h>

#if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
# define MAP_ANONYMOUS MAP_ANON
#endif

/* This mess was copied from the GNU getpagesize.h.  */
#ifndef HAVE_GETPAGESIZE
# ifdef HAVE_UNISTD_H
#  include <unistd.h>
# endif

/* Assume that all systems that can run configure have sys/param.h.  */
# ifndef HAVE_SYS_PARAM_H
#  define HAVE_SYS_PARAM_H 1
# endif

# ifdef _SC_PAGESIZE
#  define getpagesize() sysconf(_SC_PAGESIZE)
# else /* no _SC_PAGESIZE */
#  ifdef HAVE_SYS_PARAM_H
#   include <sys/param.h>
#   ifdef EXEC_PAGESIZE
#    define getpagesize() EXEC_PAGESIZE
#   else /* no EXEC_PAGESIZE */
#    ifdef NBPG
#     define getpagesize() NBPG * CLSIZE
#     ifndef CLSIZE
#      define CLSIZE 1
#     endif /* no CLSIZE */
#    else /* no NBPG */
#     ifdef NBPC
#      define getpagesize() NBPC
#     else /* no NBPC */
#      ifdef PAGESIZE
#       define getpagesize() PAGESIZE
#      endif /* PAGESIZE */
#     endif /* no NBPC */
#    endif /* no NBPG */
#   endif /* no EXEC_PAGESIZE */
#  else /* no HAVE_SYS_PARAM_H */
#   define getpagesize() 8192	/* punt totally */
#  endif /* no HAVE_SYS_PARAM_H */
# endif /* no _SC_PAGESIZE */

#endif /* no HAVE_GETPAGESIZE */

#ifndef MAP_FAILED
# define MAP_FAILED -1
#endif

#undef perror_exit
#define perror_exit(str, val) \
  do { perror(str); exit(val); } while (0)

/* Some versions of cygwin mmap require that munmap is called with the
   same parameters as mmap.  GCC expects that this is not the case.
   Test for various forms of this problem.  Warning - icky signal games.  */

static sigset_t unblock_sigsegv;
static jmp_buf r;
static size_t pg;
static int devzero;

static char *
anonmap (size)
     size_t size;
{
#ifdef USE_MAP_ANON
  return (char *) mmap (0, size, PROT_READ|PROT_WRITE,
			MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
#else
  return (char *) mmap (0, size, PROT_READ|PROT_WRITE,
			MAP_PRIVATE, devzero, 0);
#endif
}

static void
sigsegv (unused)
     int unused;
{
  sigprocmask (SIG_UNBLOCK, &unblock_sigsegv, 0);
  longjmp (r, 1);
}

/* Basic functionality test.  */
void
test_0 ()
{
  char *x = anonmap (pg);
  if (x == (char *) MAP_FAILED)
    perror_exit("test 0 mmap", 2);

  *(int *)x += 1;

  if (munmap(x, pg) < 0)
    perror_exit("test 0 munmap", 3);
}

/* 1. If we map a 2-page region and unmap its second page, the first page
   must remain.  */
static void
test_1 ()
{
  char *x = anonmap (pg * 2);
  if (x == (char *)MAP_FAILED)
    perror_exit ("test 1 mmap", 4);

  signal (SIGSEGV, sigsegv);
  if (setjmp (r))
    perror_exit ("test 1 fault", 5);

  x[0] = 1;
  x[pg] = 1;

  if (munmap (x + pg, pg) < 0)
    perror_exit ("test 1 munmap 1", 6);
  x[0] = 2;

  if (setjmp (r) == 0)
    {
      x[pg] = 1;
      perror_exit ("test 1 no fault", 7);
    }
  if (munmap (x, pg) < 0)
    perror_exit ("test 1 munmap 2", 8);
}

/* 2. If we map a 2-page region and unmap its first page, the second
   page must remain.  */
static void
test_2 ()
{
  char *x = anonmap (pg * 2);
  if (x == (char *)MAP_FAILED)
    perror_exit ("test 2 mmap", 9);

  signal (SIGSEGV, sigsegv);
  if (setjmp (r))
    perror_exit ("test 2 fault", 10);

  x[0] = 1;
  x[pg] = 1;

  if (munmap (x, pg) < 0)
    perror_exit ("test 2 munmap 1", 11);

  x[pg] = 2;

  if (setjmp (r) == 0)
    {
      x[0] = 1;
      perror_exit ("test 2 no fault", 12);
    }

  if (munmap (x+pg, pg) < 0)
    perror_exit ("test 2 munmap 2", 13);
}

/* 3. If we map two adjacent 1-page regions and unmap them both with
   one munmap, both must go away.

   Getting two adjacent 1-page regions with two mmap calls is slightly
   tricky.  All OS's tested skip over already-allocated blocks; therefore
   we have been careful to unmap all allocated regions in previous tests.
   HP/UX allocates pages backward in memory.  No OS has yet been observed
   to be so perverse as to leave unmapped space between consecutive calls
   to mmap.  */

static void
test_3 ()
{
  char *x, *y, *z;

  x = anonmap (pg);
  if (x == (char *)MAP_FAILED)
    perror_exit ("test 3 mmap 1", 14);
  y = anonmap (pg);
  if (y == (char *)MAP_FAILED)
    perror_exit ("test 3 mmap 2", 15);

  if (y != x + pg)
    {
      if (y == x - pg)
	z = y, y = x, x = z;
      else
	{
	  fprintf (stderr, "test 3 nonconsecutive pages - %lx, %lx\n",
		   (unsigned long)x, (unsigned long)y);
	  exit (16);
	}
    }

  signal (SIGSEGV, sigsegv);
  if (setjmp (r))
    perror_exit ("test 3 fault", 17);

  x[0] = 1;
  y[0] = 1;

  if (munmap (x, pg*2) < 0)
    perror_exit ("test 3 munmap", 18);

  if (setjmp (r) == 0)
    {
      x[0] = 1;
      perror_exit ("test 3 no fault 1", 19);
    }
  
  signal (SIGSEGV, sigsegv);
  if (setjmp (r) == 0)
    {
      y[0] = 1;
      perror_exit ("test 3 no fault 2", 20);
    }
}

int
main ()
{
  sigemptyset (&unblock_sigsegv);
  sigaddset (&unblock_sigsegv, SIGSEGV);
  pg = getpagesize ();
#ifndef USE_MAP_ANON
  devzero = open ("/dev/zero", O_RDWR);
  if (devzero < 0)
    perror_exit ("open /dev/zero", 1);
#endif

  test_0();
  test_1();
  test_2();
  test_3();

  exit(0);
}


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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] Re: Trap handler
Date: Sun, 8 Dec 2002 21:12:14 -0800
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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In reference to a message from John David Anglin, dated Dec 08:
> > > I just happened to notice that the system almost totally stalled running
> > > the test.  The load average jumps from 1 to about 9.  You just have to
> > > compile and run to see the effect.  Line 127 writes to unmapped memory
> > > and causes multiple entries in /var/log/debug.
> > 
> > Dave, can you send the test program and details to the list? i didn't
> > see the beginning of this thread and am not sure which program you are
> > refering to.
> 
> Here it is.

well, something is just very broken, even this simple code triggers the
bug:

int main(int argc, char **argv)
{
        int *p = 0;
        return *p;
}

the kernel goes nuts trying to page fault continuously.

:-(
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Randolph Chung <tausq@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [hppa] problem using glibc2.3 with older 64-bit kernels
Date: Sun, 8 Dec 2002 22:08:33 -0800
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Xref: news.gmane.org gmane.linux.ports.parisc:17052

This is a heads up for people running 64-bit hppa kernels with new glibc
(2.3.1). Make sure you have at least 2.4.19-pa17, otherwise fcntl() will
break with the new glibc and you won't be able to use e.g. apt.

This was needed to fix some problems with lfs on hppa. Unfortunately it
cannot be done in a completely backwards compatible manner.

32-bit kernels are not affected.

<sigh>
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] Re: Trap handler
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> > Here it is.
> 
> well, something is just very broken, even this simple code triggers the
> bug:

and with Grant's help, it's fixed in 2.4.20-pa12 :)

question for willy/jsm, etc though:
the fix has to do with where we should return to after handling an
interruption. in pre-2.4.20 code we used to return to intr_return. Grant
thinks that is incorrect and changed it to intr_restore (basically just
doing the rfi). the -pa12 patch changes it back so it will handle
pending signals. The items that remain not handled are restoring I-bit,
softirqs (and irqstats) and rescheduling. We are not sure if those bits
are needed for interruptions....  can you guys shed some light on this?

thanks,
randolph


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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Trap handler
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To: Randolph Chung <tausq@debian.org>
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On Sun, Dec 08, 2002 at 10:19:13PM -0800, Randolph Chung wrote:
> the fix has to do with where we should return to after handling an
> interruption. in pre-2.4.20 code we used to return to intr_return. Grant
> thinks that is incorrect and changed it to intr_restore (basically just
> doing the rfi). the -pa12 patch changes it back so it will handle
> pending signals. The items that remain not handled are restoring I-bit,
> softirqs (and irqstats) and rescheduling. We are not sure if those bits
> are needed for interruptions....  can you guys shed some light on this?

Well, let's look at the reference platform (ie x86):

ENTRY(page_fault)
        pushl $do_page_fault
        jmp error_code

error_code:
(blah blah blah.  sets up stuff & calls the address on the stack)
        call *%edi
        addl $8, %esp
        jmp ret_from_exception

ret_from_exception:
        preempt_stop
ret_from_intr:
        GET_THREAD_INFO(%ebx)
        movl EFLAGS(%esp), %eax         # mix EFLAGS and CS
        movb CS(%esp), %al
        testl $(VM_MASK | 3), %eax
        jz resume_kernel                # returning to kernel or vm86-space
ENTRY(resume_userspace)
        cli                             # make sure we don't miss an interrupt
                                        # setting need_resched or sigpending
                                        # between sampling and the iret
        movl TI_FLAGS(%ebx), %ecx
        andl $_TIF_WORK_MASK, %ecx      # is there any work to be done on
                                        # int/exception return?
        jne work_pending
        jmp restore_all

(with preemption disabled, resume_kernel == restore_all)

restore_all:
        RESTORE_ALL

        # perform work that needs to be done immediately before resumption
        ALIGN
work_pending:
        testb $_TIF_NEED_RESCHED, %cl
        jz work_notifysig
work_resched:

So x86 will potentially reschedule on successfully handling a page
fault.  softirqs seem to only get run if we're returning to userspace,
unless we're switching tasks.  That might be a bug in the x86 code.
Judging from the use of cli & sti in the x86 asm, I would venture to
suggest that the I bit should be cleared.  It makes sense anyway --
you can't expect interrupts to be disabled over a page fault.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: "Tim Kemna" <t.kemna@student.utwente.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] kernel compilation error
Date: Mon, 9 Dec 2002 15:00:29 +0100
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Hi,

I'm trying to compile a kernel on a 712/80, but I get the following error
when I do 'make vmlinux':

scsi_merge.c: In function `__count_segments':
scsi_merge.c:225: warning: implicit declaration of function `page_to_phys'
scsi_merge.c: In function `initialize_merge_fn':
scsi_merge.c:1198: `PCI_DMA_BUS_IS_PHYS' undeclared (first use in this
function)
scsi_merge.c:1198: (Each undeclared identifier is reported only once
scsi_merge.c:1198: for each function it appears in.)
make[3]: *** [scsi_merge.o] Error 1
make[3]: Leaving directory `/usr/src/linux-2.4.20/drivers/scsi'
make[2]: *** [first_rule] Error 2
make[2]: Leaving directory `/usr/src/linux-2.4.20/drivers/scsi'
make[1]: *** [_subdir_scsi] Error 2
make[1]: Leaving directory `/usr/src/linux-2.4.20/drivers'
make: *** [_dir_drivers] Error 2

Does anyone know what I'm doing wrong?

Greetings,
Tim



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On Mon, Dec 09, 2002 at 03:00:29PM +0100, Tim Kemna wrote:
> Hi,
> 
> I'm trying to compile a kernel on a 712/80, but I get the following error
> when I do 'make vmlinux':
> 
> scsi_merge.c: In function `__count_segments':
> scsi_merge.c:225: warning: implicit declaration of function `page_to_phys'
> scsi_merge.c: In function `initialize_merge_fn':
> scsi_merge.c:1198: `PCI_DMA_BUS_IS_PHYS' undeclared (first use in this
> function)

where did you get your kernel from?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Re: Trap handler
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> > > Here it is.
> > 
> > well, something is just very broken, even this simple code triggers the
> > bug:
> 
> and with Grant's help, it's fixed in 2.4.20-pa12 :)

The system doesn't seem to drop core on a segmentation fault anymore.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] Re: Trap handler
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> The system doesn't seem to drop core on a segmentation fault anymore.

Forget last message.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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----- Oorspronkelijk bericht -----
Van: "Matthew Wilcox" <willy@debian.org>
Aan: "Tim Kemna" <t.kemna@student.utwente.nl>
CC: <parisc-linux@lists.parisc-linux.org>
Verzonden: maandag 9 december 2002 15:07
Onderwerp: Re: [parisc-linux] kernel compilation error


> On Mon, Dec 09, 2002 at 03:00:29PM +0100, Tim Kemna wrote:
> > Hi,
> >
> > I'm trying to compile a kernel on a 712/80, but I get the following
error
> > when I do 'make vmlinux':
> >
> > scsi_merge.c: In function `__count_segments':
> > scsi_merge.c:225: warning: implicit declaration of function
`page_to_phys'
> > scsi_merge.c: In function `initialize_merge_fn':
> > scsi_merge.c:1198: `PCI_DMA_BUS_IS_PHYS' undeclared (first use in this
> > function)
>
> where did you get your kernel from?

ftp.kernel.org



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On Mon, Dec 09, 2002 at 06:42:02PM +0100, Tim Kemna wrote:
> ftp.kernel.org

that doesn't work, you need the cvs kernel or our patches.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: Re: [parisc-linux] Re: Trap handler
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On Mon, Dec 09, 2002 at 12:54:16PM +0000, Matthew Wilcox wrote:
> x86 will potentially reschedule on successfully handling a page fault.

ok.

> softirqs seem to only get run if we're returning to userspace,
> unless we're switching tasks.  That might be a bug in the x86 code.

ok.

> Judging from the use of cli & sti in the x86 asm, I would venture to
> suggest that the I bit should be cleared.  It makes sense anyway --
> you can't expect interrupts to be disabled over a page fault.

The above two statements don't make sense to me.
Clearing I-bit (ie rsm) will disable interrupts.
The second sentence suggests the opposite.
Or did I read it wrong?

thanks,
grant



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On Mon, Dec 09, 2002 at 11:03:16AM -0700, Grant Grundler wrote:
> > Judging from the use of cli & sti in the x86 asm, I would venture to
> > suggest that the I bit should be cleared.  It makes sense anyway --
> > you can't expect interrupts to be disabled over a page fault.
> 
> The above two statements don't make sense to me.
> Clearing I-bit (ie rsm) will disable interrupts.
> The second sentence suggests the opposite.
> Or did I read it wrong?

i misremembered the sense of the I bit

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Mon, Dec 09, 2002 at 06:20:33PM +0000, Matthew Wilcox wrote:
> On Mon, Dec 09, 2002 at 11:03:16AM -0700, Grant Grundler wrote:
> > > Judging from the use of cli & sti in the x86 asm, I would venture to
> > > suggest that the I bit should be cleared.  It makes sense anyway --
> > > you can't expect interrupts to be disabled over a page fault.
...
> i misremembered the sense of the I bit

As jsm agreed, if interrupts were disabled when we took the fault,
we can't re-enable them while handling a page fault.
Where x86 disables interrupts seems ok to me.

But the 2.4.20 parisc code (entry.S) re-enables interrupts at
intr_return label (ssm insn). Should parisc *not* be re-enabling
interrupts at all or at least not until after intr_check_resched
code block?

I'm trying to align x86/parisc implementations.
And "misaligned trap handler" is one difference I suspect
the x86 code doesn't have to handle.

thanks,
grant


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On Mon, Dec 09, 2002 at 11:41:25AM -0700, Grant Grundler wrote:
> As jsm agreed, if interrupts were disabled when we took the fault,
> we can't re-enable them while handling a page fault.
> Where x86 disables interrupts seems ok to me.

um, there's a difference between a page fault and a TLB miss.  if you
have interrupts disabled and you take a page fault, something's gone
horribly wrong.  having interrupts disabled when you miss the TLB cache
is no big deal.  we _absolutely must not_ tamper with interrupt enable
state when handling a TLB miss.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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confirm 133734


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Hi people,

	I would link to know if the SMP is working on kernel 19 pa 23, 32
bits?
	
	I'm make this question because when I enable SMP to compile this
kernel and put it to run, it crashes when the systen try do boot.
	If anyone know something about this, please give me a tip to solve
this.

Thanks in Advance,

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com




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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: Re: [parisc-linux] SMP on kernel version 19 pa 23
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On Tue, Dec 10, 2002 at 10:41:00AM -0800, FARINATI,LEANDRO wrote:
> 	I would link to know if the SMP is working on kernel 19 pa 23, 32
> bits?

I assume you mean 2.4.19-pa23.
IIRC 2.4.19-pa24 booted/worked on a500 (64-bit) and I thought that was
an SMP kernel but aren't sure now.

> 	I'm make this question because when I enable SMP to compile this
> kernel and put it to run, it crashes when the systen try do boot.

can you post the console output?
And you .config file? (if it's not the default)

grant


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Subject: Re: [parisc-linux] SMP on kernel version 19 pa 23
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> 	I'm make this question because when I enable SMP to compile this
> kernel and put it to run, it crashes when the systen try do boot.
> 	If anyone know something about this, please give me a tip to solve
> this.

Please follow http://www.parisc-linux.org/faq/kernelbug-howto.html to
report the problem.

randolph


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From: Arto Jantunen <viiru@debian.org>
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Subject: Re: [parisc-linux] SMP on kernel version 19 pa 23
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grundler@dsl2.external.hp.com (Grant Grundler) writes:

> On Tue, Dec 10, 2002 at 10:41:00AM -0800, FARINATI,LEANDRO wrote:
>> 	I would link to know if the SMP is working on kernel 19 pa 23, 32
>> bits?
>
> I assume you mean 2.4.19-pa23.
> IIRC 2.4.19-pa24 booted/worked on a500 (64-bit) and I thought that was
> an SMP kernel but aren't sure now.

The main thing here is that 32- and 64-bit SMP kernels are very
different. On a D390 a 32-bit kernel crashes on a lot of cases (I've
submited info on atleast three of those) and 64-bit kernel also
crashes, but in a very different way (and for very different reasons,
I'm quite sure). Lots of people have managed to run 64-bit SMP
kernels, I haven't heard of any succesful 32-bit SMP yet...

-- 
Arto Jantunen


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---275789367-1088173175-1039577047=:6654
Content-Type: TEXT/PLAIN; charset=US-ASCII

Hi parisc-linux,

I tried to upgrade my C240 (from old 2.4.19-pa2) to linux-2.4.20-pa10 and
linux-2.4.20-pa13 (compiled with gcc-3.2.2-pre). Both new kernels boot
up fine, all daemons/programms seem to work, even network is up, but the
C240 (beast) instantly hangs after I try to ssh into the beast from my
Intel laptop (bucephalas).
Both systems (PA-RISC and Intel) are debian/sid, apt-get upgraded on Dec 8.
I tried the following on the laptop:

==
bucephalas:/home/xam/parisc# ssh xam@beast
xam@beast's password:
Warning: No xauth data; using fake authentication data for X11 forwarding.
==

The ssh authenification is obviously successful, but I won't get a shell prompt
since the C240 crashes immediately after the login.

It works when booting the old linux-2.4.19-pa2, so there must be a bug
introduced between 2.4.19-pa2 and 2.4.20-pa10.

Attached are the kernel stack/register dump and parts of the System.map
when running linux-2.4.20-pa13.
I didn't include the kernel config since it is quite large, but the only
thing that has changed is that I use SYM2 instead of SYM1 on 2.4.20-pa13.
The config of 2.4.20-pa10 (not working) and 2.4.19-pa7 (working) is the
same, and it hasn't changed for quite a while since before that and always
worked.

greetings max

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Subject: Re: [parisc-linux] Kernel crash when loggin in via ssh
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> It works when booting the old linux-2.4.19-pa2, so there must be a bug
> introduced between 2.4.19-pa2 and 2.4.20-pa10.

What compiler/toolchain did you use to compile 2.4.19-pa2?

c.



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On Tue, 10 Dec 2002, Carlos O'Donell wrote:

> > It works when booting the old linux-2.4.19-pa2, so there must be a bug
> > introduced between 2.4.19-pa2 and 2.4.20-pa10.
>
> What compiler/toolchain did you use to compile 2.4.19-pa2?

Honestly, I don't know 100%. It wasn't gcc-3.2.2-pre for sure, but i
*THINK* it was gcc-3.0.4 (I have to do a dmesg next time)!







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Xref: news.gmane.org gmane.linux.ports.parisc:17075

On Tue, 10 Dec 2002, Carlos O'Donell wrote:

> > It works when booting the old linux-2.4.19-pa2, so there must be a bug
> > introduced between 2.4.19-pa2 and 2.4.20-pa10.
>
> What compiler/toolchain did you use to compile 2.4.19-pa2?

Reading my previous post about the change in the Voodoo3 issue (Nov 26),
I realized that linux-2.4.20-rc1-pa7 obviously also worked.
This kernel was definitely compiled with gcc-3.0.4 (the one that
was in sid as of Nov 26).

Yes, it might be a gcc issue ... haven't thought of that ...
I'll try to recompile the latest kernel with a gcc-3.0.4 - tomorrow!

greetings max



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> Reading my previous post about the change in the Voodoo3 issue (Nov 26),
> I realized that linux-2.4.20-rc1-pa7 obviously also worked.
> This kernel was definitely compiled with gcc-3.0.4 (the one that
> was in sid as of Nov 26).
> 
> Yes, it might be a gcc issue ... haven't thought of that ...
> I'll try to recompile the latest kernel with a gcc-3.0.4 - tomorrow!

So the urban legend goes that gcc-3.2 compiled kernels may infact
produce mildly incorrect results in the networking code.

I have yet to verify this, and JDA seems to indicate that he has working
kernels with gcc-3.2. While I've only recently tested gcc-3.0.x and
gcc-3.1.x based compiles.

I don't like urban legends >:} *Added item to Chrismas todo list*

c.



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Subject: [parisc-linux] another kernel compilation error
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Hi,

I'm trying to compile a kernel, version 2.4.20-pa13. But I get the following
error:

ld -T /usr/src/linux-2.4.20-pa13/arch/parisc/vmlinux.lds
arch/parisc/kernel/hea
d.o  init/main.o init/version.o init/do_mounts.o \
--start-group \
arch/parisc/kernel/pdc_cons.o arch/parisc/kernel/process.o
arch/parisc/lib/lib.a
 arch/parisc/mm/mm.o arch/parisc/kernel/kernel.o arch/parisc/hpux/hpux.o
kernel/
kernel.o mm/mm.o fs/fs.o ipc/ipc.o arch/parisc/kernel/init_task.o \
 drivers/char/char.o drivers/block/block.o drivers/misc/misc.o
drivers/net/net.o
 drivers/media/media.o drivers/scsi/scsidrv.o drivers/cdrom/driver.o
drivers/vid
eo/video.o drivers/gsc/gscbus.o arch/parisc/math-emu/math.o \
net/network.o \
`gcc -print-libgcc-file-name`
/usr/src/linux-2.4.20-pa13/arch/parisc/lib/lib.a /
usr/src/linux-2.4.20-pa13/lib/lib.a  \
        --end-group \
        -o vmlinux
ld: arch/parisc/kernel/kernel.o(.text.show_trace+0x58): fixing
R_PARISC_DPREL21L
ld: arch/parisc/kernel/kernel.o(.text.timer_interrupt+0x88): fixing
R_PARISC_DPR
EL21L
ld: arch/parisc/kernel/kernel.o(.text.timer_interrupt+0x94): fixing
R_PARISC_DPR
EL21L
drivers/char/char.o: In function `hp_diva_check':
drivers/char/char.o(.text.hp_diva_check+0x60): undefined reference to
`rs_interr
upt'
make: *** [vmlinux] Error 1

What am I doing wrong?

Greetings,
Tim



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> drivers/char/char.o: In function `hp_diva_check':
> drivers/char/char.o(.text.hp_diva_check+0x60): undefined reference to
> `rs_interrupt'
> make: *** [vmlinux] Error 1
> 
> What am I doing wrong?

Probably nothing but I did :-)  My Diva changes currently require
CONFIG_SERIAL_SHARE_IRQ to be set -- need to fix that.

        -P



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Le mercredi, 11 d=E9c 2002, =E0 14:51 Europe/Paris, Tim Kemna a =E9crit =
:
>
> drivers/char/char.o: In function `hp_diva_check':
> drivers/char/char.o(.text.hp_diva_check+0x60): undefined reference to
> `rs_interr
> upt'
> make: *** [vmlinux] Error 1
>
Weird I'm also having an error on char.o:

         -o vmlinux
drivers/char/char.o: In function `.L1757':
drivers/char/char.o(.text.vt_ioctl+0x51c): undefined reference to=20
`key_maps'
drivers/char/char.o: In function `handle_scancode':
drivers/char/char.o(.text.handle_scancode+0x25c): undefined reference=20
to `key_maps'
drivers/char/char.o: In function `handle_diacr':
drivers/char/char.o(.text.handle_diacr+0x1c): undefined reference to=20
`accent_table_size'
drivers/char/char.o: In function `do_fn':
drivers/char/char.o(.text.do_fn+0x8): undefined reference to=20
`func_table'
drivers/char/char.o: In function `compute_shiftstate':
drivers/char/char.o(.text.compute_shiftstate+0x90): undefined reference=20=

to `key_maps'
drivers/char/char.o: In function `do_slock':
drivers/char/char.o(.text.do_slock+0x74): undefined reference to=20
`key_maps'
make: *** [vmlinux] Error 1

same kernel; 64bit UP for a B2600 in graphic mode (SuckyIO/STIcon...)

I'm gonna investigate soon...
Mail me for .config...=




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On Wed, Dec 11, 2002 at 02:51:44PM +0100, Tim Kemna wrote:
> I'm trying to compile a kernel, version 2.4.20-pa13. But I get the following
> error:
...
> drivers/char/char.o: In function `hp_diva_check':
> drivers/char/char.o(.text.hp_diva_check+0x60): undefined reference to
> `rs_interrupt'

Maybe you don't have CONFIG_PCI=y/CONFIG_SERIAL_SHARE_IRQ=y?

grant


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Hi people,

I'm trying to run Linux (compiled with smp, kernel version 2.4.20-pa13) on a
single-processed C3600 workstation and I receive the folowing error message
at boot time:

POSIX conformance testing by UNIFIX
SMP: Bootstrap processor only.
SMP: Total 1 of 1 processors activated (1101.00 BogoMIPS noticed).
Waiting on wait_init_idle (map = 0x0)
All processors have done init_idle

Stack Dump:
 104588c0:  0004070e 00000000 00000000 00000000
 104588b0:  00000000 1011f2cc 00000000 00000000
 104588a0:  00000000 00000000 00000000 00000000
 10458890:  00000000 00000000 00000000 00000000
 10458880:  00000000 00000000 00000000 00000000
 10458870:  00000000 00000000 00000000 103a0810

Kernel addresses on the stack:
 [<1011f2cc>]  [<10108c28>]  [<10120f6c>]  [<10120f6c>]
 [<101213b4>]  [<101213b4>]  [<101001e8>]  [<101211ec>]
 [<101001ac>]  [<10125f7c>]

Kernel Fault: Code=15 regs=104588c0 (Addr=0006cd00)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000011100001110 Not tainted
r00-03  00000000 10362260 1011f2cc 100ac000
r04-07  003a7000 00000001 00010f00 10362010
r08-11  fffffff4 1039c810 00000000 104585c0
r12-15  00000995 ffffffff 00000000 f0400004
r16-19  f00008c4 f000017c f0000174 00000001
r20-23  10362270 000006cd 0006cd00 0000000f
r24-27  0000000f 100ac000 00010f00 10362010
r28-31  00000000 000009bb 104588c0 10486010
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1011f4c4 1011f4c8
 IIR: 0ec01093    ISR: 00000000  IOR: 0006cd00
 CPU:        0   CR30: 10458000 CR31: 10460000
 ORIG_R28: 1039f640

Anyone, already see this problem? 
Anyone, know anything about it?
Please, help me to found a solution to this problem.

Thanks in advance.

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com




From - Thu Nov 08 21:25:53 2018
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> I'm trying to run Linux (compiled with smp, kernel version 2.4.20-pa13) on a
> single-processed C3600 workstation and I receive the folowing error message
> at boot time:

Again, you need to follow the info at
http://www.parisc-linux.org/faq/kernelbug-howto.html
when reporting things like this.

Especially the part in *bold*.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] ["CSA Test Drive" <TestDrive@compaq.com>] FW: Some issues
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--=-=-=

Forwarded from the testdrive.hp.com folks.

Bdale



--=-=-=
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Here is some input on a Debian PA-RISC issue.

Thanks

Tim

-----Original Message-----
From: Torbjorn Granlund [mailto:tege@swox.com]
Sent: Monday, December 09, 2002 4:04 PM
To: CSA Test Drive
Subject: Some issues


1) Could you please set the clock of spe190?  It is 1.5h off.

2) The Debian HPPA box (spe170) seems to have alpha quality
software.  Specifically, the FCNV,UDW,DBL instruction is
apparently trapped, at least for certain input operand
values, and then incorrectly implemented.  (I base the
assupmtion that it is trapped not only on its incorrect
operation, but on its terrible performance and that kernel
time dominates any test program that contains the
instruction.)

Here is a test program that demonstrates the problems:

double ull2dbl (unsigned long long ull)
{
  return ull;
}
main ()
{
  int i;
  for (i =3D 500000; --i;)
    ull2dbl (0x8000000000000000ull);
  printf ("%f\n", ull2dbl (0x8000000000000000ull));
  return 0;
}

Compile using:
$ gcc -mpa-risc-2-0 ull2dbl.c -O
$ ./a.out=20
-9223372036854775808.000000

Correct output is 9223372036854775808, without the minus sign.
Without the -mpa-risc-2-0 switch, the program behaves correctly.
I have verified that the compiler output is indeed correct.

The program takes 2.7 seconds of kernel time!

--
Torbj=F6rn


--=-=-=--



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> 2) The Debian HPPA box (spe170) seems to have alpha quality
> software.  Specifically, the FCNV,UDW,DBL instruction is
> apparently trapped, at least for certain input operand

I tried the program and I confirm the incorrect result under
hppa-linux.  The same code under hpux generates the correct
result.  The problem might be the wrong rounding mode is set
by glibc.  I believe that there was a recent fix for this.

I see no indication that the code traps on a PA8700.  I think
you would get a report in kern.log if the insn trapped due to
an unimplemented trap.  You might have the floating point
exception enables on causing traps on your machine.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > 2) The Debian HPPA box (spe170) seems to have alpha quality
> > software.  Specifically, the FCNV,UDW,DBL instruction is
> > apparently trapped, at least for certain input operand
> 
> I tried the program and I confirm the incorrect result under
> hppa-linux.  The same code under hpux generates the correct
> result.  The problem might be the wrong rounding mode is set
> by glibc.  I believe that there was a recent fix for this.

I fixed fesetround() so it wouldn't make a mess of the RM mask. Though
it does not appear that rounding is related to the problem.

> I see no indication that the code traps on a PA8700.  I think
> you would get a report in kern.log if the insn trapped due to
> an unimplemented trap.  You might have the floating point
> exception enables on causing traps on your machine.

The code _seems_ to trap on a PA8600. Though I won't say anything until
I enable debugging in the trap handler and rerun the test.

c.



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> The code _seems_ to trap on a PA8600. Though I won't say anything until
> I enable debugging in the trap handler and rerun the test.

The code doesn't seem to trap on a A500 which I believe is a PA8500.
I think we need to look at bits 0..1 of the coprocessor configuration
register to determine instruction validity.  See table 8-6 on page 8-11.
I can look at what the HP compiler does.  Up to now, we have assumed
that all PA8000 machines have the same instruction set.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > drivers/char/char.o: In function `hp_diva_check':
> > drivers/char/char.o(.text.hp_diva_check+0x60): undefined reference to
> > `rs_interrupt'
> > make: *** [vmlinux] Error 1
> > 
> > What am I doing wrong?
> 
> Probably nothing but I did :-)  My Diva changes currently require
> CONFIG_SERIAL_SHARE_IRQ to be set -- need to fix that.

I can't find that option in my .config



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> The code doesn't seem to trap on a A500 which I believe is a PA8500.

Could be a PA8600 too.

> I think we need to look at bits 0..1 of the coprocessor configuration
> register to determine instruction validity.  See table 8-6 on page 8-11.
> I can look at what the HP compiler does.  Up to now, we have assumed
> that all PA8000 machines have the same instruction set.

I'm building a new kernel right now to run the test on again.
My sociology exam is in a half-hour... I need a little break ;)

c.


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On Wed, 11 Dec 2002, Carlos O'Donell wrote:

> Subject: Re: [parisc-linux] Kernel crash when loggin in via ssh
>
> > Reading my previous post about the change in the Voodoo3 issue (Nov 26),
> > I realized that linux-2.4.20-rc1-pa7 obviously also worked.
> > This kernel was definitely compiled with gcc-3.0.4 (the one that
> > was in sid as of Nov 26).
> >
> > Yes, it might be a gcc issue ... haven't thought of that ...
> > I'll try to recompile the latest kernel with a gcc-3.0.4 - tomorrow!

It IS a gcc issue.

gcc-3.0_3.0.4-13 produces a working kernel, gcc-3.2-3.2.2-0pre0 produces
a miscompiled kernel (faulty networking, causes kernel crash).
I made NO updates whatsoever; same kernel configuration, just using gcc-3.0
insted of gcc-3.2. I just make a make clean; make dep; make vmlinux ...

Since now all my kernels compiled with gcc-3.0 were working, just when I
upgraded to gcc-3.2 the problems occured.

> So the urban legend goes that gcc-3.2 compiled kernels may infact
> produce mildly incorrect results in the networking code.

I think it is no urban legend anymore ... :-/
I've also see quite alot reports on p-l about miscompiled kernels with
anything other than gcc-3.0.4, actually several months ago; so I thought
these issues have been solved by now ...

> I have yet to verify this, and JDA seems to indicate that he has working
> kernels with gcc-3.2. While I've only recently tested gcc-3.0.x and
> gcc-3.1.x based compiles.
>
> I don't like urban legends >:} *Added item to Chrismas todo list*

Merry christmas then :-}

greetings max



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> > > Yes, it might be a gcc issue ... haven't thought of that ...
> > > I'll try to recompile the latest kernel with a gcc-3.0.4 - tomorrow!
> 
> It IS a gcc issue.

That is not sufficient proof.  Just because code "works" with one compiler
version, doesn't mean that there isn't a problem with the code.  Someone
actually has to produce a sample of miscompiled code.  The debian 3.0.4
is not a supported version of gcc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Wed, 11 Dec 2002, John David Anglin wrote:

> > It IS a gcc issue.
>
> That is not sufficient proof.  Just because code "works" with one compiler
> version, doesn't mean that there isn't a problem with the code.  Someone
> actually has to produce a sample of miscompiled code.  The debian 3.0.4
> is not a supported version of gcc.

okay, fair enough. But for now I stick to gcc-3.0.4 ...

BTW, did anybody try to compile kernels with CVS gcc-3.3 ?
Otherwise I'll waste my time this weekend building a native compiler and
try to recompile the same kernel again with the CVS gcc main branch (3.3?)

greetings max



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> gcc-3.0_3.0.4-13 produces a working kernel, gcc-3.2-3.2.2-0pre0 produces
> a miscompiled kernel (faulty networking, causes kernel crash).

Just to reiterate Dave's point, this is not necessarily a compiler
problem. 

> I think it is no urban legend anymore ... :-/
> I've also see quite alot reports on p-l about miscompiled kernels with
> anything other than gcc-3.0.4, actually several months ago; so I thought
> these issues have been solved by now ...

you will also see several attempts from me to get more info about these
problems, since i have yet to reproduce this. No one has stepped forward
to provide the info to track this down...

please, follow the info at
http://www.parisc-linux.org/faq/kernelbug-howto.html to report where is
the crash, what is your config, etc.... just saying "it doesn't work"
will not help us fix it.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] ["CSA Test Drive" <TestDrive@compaq.com>] FW: Some issues
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> The code doesn't seem to trap on a A500 which I believe is a PA8500.
> I think we need to look at bits 0..1 of the coprocessor configuration
> register to determine instruction validity.  See table 8-6 on page 8-11.

it does cause a trap actually, we just don't usually print it. 

FP assist exception at 0x10433
FP VZOUICxxxxCQCQCQCQCQCRMxxTDVZOUI ->
   00000000000000000000000001000000

i'm confused tho because that iaoq doesn't point where i thought it
might point. is this because of delayed exceptions?

(oh, as an aside, looks like there's a small objdump bug :-)
00010428 <ull2dbl>:
   10428:       0f d9 12 81     stw r25,-10(sr0,sp)
   1042c:       0f da 12 89     stw r26,-c(sr0,sp)
   10430:       2f c1 10 16     fldd -10(sr0,sp),fr22
   10434:       e8 40 d0 00     bve (rp)
   10438:       32 c2 aa 04     fcnv Disassembler botch.

(should be fcnv,udw,dbl %fr22,%fr4)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> It IS a gcc issue.
> 
> gcc-3.0_3.0.4-13 produces a working kernel, gcc-3.2-3.2.2-0pre0 produces
> a miscompiled kernel (faulty networking, causes kernel crash).
> I made NO updates whatsoever; same kernel configuration, just using gcc-3.0
> insted of gcc-3.2. I just make a make clean; make dep; make vmlinux ...

btw, i just built this: 

$ ssh -p 1022 -2 tausq@gsyprf10.external.hp.com
tausq@a500:~$ dmesg|grep gcc
Linux version 2.4.20-pa13 (tausq@a500) (gcc version 3.2.2 20021202 (Debian prerelease)) #12 SMP Wed Dec 11 23:02:01 PST 2002

still need to try 32-bit...
randolph


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Le jeudi, 12 d=E9c 2002, =E0 01:05 Europe/Paris, Randolph Chung a =E9crit =
:

>> gcc-3.0_3.0.4-13 produces a working kernel, gcc-3.2-3.2.2-0pre0=20
>> produces
>> a miscompiled kernel (faulty networking, causes kernel crash).
>
> Just to reiterate Dave's point, this is not necessarily a compiler
> problem.
I'm pretty interested to help finding out whether it is or not a=20
compiler problem.

I had the exact same problem that what was mentioned here, a couple of=20=

months ago, with both native and cross compiler (gcc-3.2).
Any attempt to login on the box via network led to a kernel crash.

I'll try to reproduce it to track down where the kernel crashed, since=20=

I don't remember it off hand.

Anyway, I'd be interested in learning what you guys may suspect as=20
other possible cause for this _weird_ behaviour...

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=




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On Wed, Dec 11, 2002 at 10:50:59PM -0800, Randolph Chung wrote:
> (oh, as an aside, looks like there's a small objdump bug :-)
> 00010428 <ull2dbl>:
>    10428:       0f d9 12 81     stw r25,-10(sr0,sp)
>    1042c:       0f da 12 89     stw r26,-c(sr0,sp)
>    10430:       2f c1 10 16     fldd -10(sr0,sp),fr22
>    10434:       e8 40 d0 00     bve (rp)
>    10438:       32 c2 aa 04     fcnv Disassembler botch.
> 
> (should be fcnv,udw,dbl %fr22,%fr4)

well, there's another one:

stw r25,-10(sr0,sp)

printing `sr0,' is misleading -- were not using sr0, we're using `short
addressing mode', it should be just:

stw r25,-10(sp)

i remember jsm pointing this out a couple of years ago.  basically for insns
which have a 2-bit s field, print nothing if it's zero.  sr0 should still be
pinted for insns with a 3-bit s field.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> $ ssh -p 1022 -2 tausq@gsyprf10.external.hp.com
> tausq@a500:~$ dmesg|grep gcc
> Linux version 2.4.20-pa13 (tausq@a500) (gcc version 3.2.2 20021202 (Debian prerelease)) #12 SMP Wed Dec 11 23:02:01 PST 2002

I plan to change BIGGEST_ALIGNMENT back to 64 bits on the 32 branch today
assuming that testing is successful.  The main branch was changed yesterday.
This affects the alignment of long doubles under hpux and possibly the
alignment of __atomic_lock_t types parisc-linux linux.

I have been testing revised glibc locking code.  It only requires integer
alignment for __atomic_lock_t types.  I am convinced this is the
correct solution.  The __attribute__ ((aligned(16))) doesn't always
do what you want.  Specifically, it doesn't work for stack locals, or
malloc'd data.  

There is still one gcc pthread test failure (pthread6) under investigation.
>From initial debugging, it doesn't appear that this fail is caused by the
locking code.

I had a lot of trouble testing the glibc fix until I realized you have
to rebuild gcc after the change.  It depends on the specifics of the lock
initializer.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: "FARINATI,LEANDRO (HP-Brazil,ex1)" <leandro.farinati@hp.com>
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Subject: [parisc-linux] fic problem
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Hi people,

	I have an error with the use of fic asm instruction(see piece code
below). 
            I'm ask you if you have a tip do help me to solve this problem.

       buf = (char *)malloc(4096);
        if(!buf)
        {
                printf("\n malloc error!");
                return(1);
        }


        /* copy instr stream(s) to new page */
        start = (unsigned int *)&(label of an asm code);
        spot = (unsigned int *)buf;
        end = (unsigned int *)&(label of an asm code);

        while(start <= end)
        {
                *spot = *start;
                __asm__ __volatile__("fdc (%0)" :: "r" (spot) );
                __asm__ __volatile__("sync" ::);
                __asm__ __volatile__("fic (%0)" :: "r" (spot) );
(segmentation fault in this line)
                __asm__ __volatile__("sync" ::);
                spot++;
                start++;
        }

Thanks in advance,

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] fic problem
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On Fri, Dec 13, 2002 at 04:27:13AM -0800, FARINATI,LEANDRO (HP-Brazil,ex1) wrote:
>                 __asm__ __volatile__("fdc (%0)" :: "r" (spot) );
>                 __asm__ __volatile__("sync" ::);
>                 __asm__ __volatile__("fic (%0)" :: "r" (spot) );
> (segmentation fault in this line)
>                 __asm__ __volatile__("sync" ::);

don't do it like this.  do it this way:

		__asm__ __volatile__("\n\
			fdc (%0)\n\
			sync\n\
			fic (%0)\n\
			sync\n"
			: : "r" (spot)
		);

that ensures that these 4 insns really are together.  you might want to
look at the generated assembly output for this function (objdump -dr
foo.o |less) and/or recompile the kernel with PRINT_USER_TRAPS turned
on so you get a register dump so you can debug this yourself.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: John Marvin <jsm@udlkern.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: fic problem
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>               __asm__ __volatile__("fic (%0)" :: "r" (spot) );

The assembler should not allow this, but it does. The problem is that
whoever wrote the assembly/disassembly support for parisc didn't really
understand the difference between instructions with 2 bit s fields and
3 bit s fields. fdc has a 2 bit s field, so when you specify "fdc (%0)"
it puts a 0 in the s field, which tells the processor to use the space
registers associated with the top two bits of the address (sr4-sr7). But
if you disassemble the instruction it will print "fdc (sr0,<register>),
which is incorrect, since sr0 is not involved.

fic has a 3 bit s field. In that case, the space register must be specified
explicitly. specifying "fic (%0)" should be illegal. But instead the
assembler just puts a zero in the s field of the instruction. But in this
case it does mean to use sr0. So when you specify "fic (%0)", you are
really specifying "fic (sr0,%0)". Since sr0 is a scratch space register,
you probably have not set it to anything appropriate, so that is probably
why the fic instruction is segfaulting on you (assuming "spot" is a legal
address in your address space).

On parisc linux we use a linear, non segmented address space, so all four
quadrants of the address space are in the same parisc space. That means
that sr4 through sr7 are set to the same value while running in user space.
So, you should change your call to fic to use any of those 4 space registers.
The general convention has been to use sr7. So instead of specifying
"fic (%0)", you should specify "fic (sr7,%0)".

John Marvin
jsm@fc.hp.com


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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: [parisc-linux] 2.4.20-pa14 64bit crash on boot - A500-5X
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--'ThIs-RaNdOm-StRiNg-/=_.58772825:
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Hi pa-ckers

I'm dropping here a brief report of a crash I just experienced with
the latest 2.4 kernel on our A500.

For various reasons you don't want to know, I cannot currently track
that problem down, so i'm providing the System.map and .config of that
kernel :)

kernel built using hppa64-gcc-3.0.4 on the A500, based on the previous
kernel's .config (2.4.19-pa22).

Console log:

pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
Redundant entry in serial pci_table.  Please send the output of
lspci -vv, this message (103c,1048,103c,1049)
and the manufacturer and name of serial board or modem board
to serial-pci-info@lists.sourceforge.net.
ttyS00 at iomem 0xfffffffff8000000 (irq = 132) is a 16550A
ttyS01 at iomem 0xfffffffff8000008 (irq = 132) is a 16550A
ttyS02 at iomem 0xfffffffff8000010 (irq = 132) is a 16550A

Press Q/q to quit, Enter to continue: 

Redundant entry in serial pci_table.  Please send the output of
lspci -vv, this message (103c,1048,103c,104a)
and the manufacturer and name of serial board or modem board
to serial-pci-info@lists.sourceforge.net.
spin_unlock(000000001039a8d0): no lock cpu 0 curr PC 00000000101101a4
swapper/1

Stack Dump:
 0000000014ced200:  000000ff0804ff0e 00000000a9c50000 0000000010143bd4
0000000000000040 
 0000000014ced1e0:  00000000103f8d60 0000000010356684 0000000000000084
fffffffff8000010 
 0000000014ced1c0:  0000000010549800 0000000000000000 0000000010549800
000000001046ce00 
 0000000014ced1a0:  00000000104b6c00 0000000010549800 000000001046ce00
028000001046ce00 
 0000000014ced180:  00000000104ec000 000000001046ce00 000000001048e7b4
0000000014cece90 
 0000000014ced160:  000000000000007e 00000000103569a8 0000000014cecfb8
000000001046ce00 

Kernel addresses on the stack:
 [<0000000010143bd4>]  [<000000001014bf2c>]  [<0000000010281a94>] 
[<000000001014018c>] 
 [<0000000010281b98>]  [<00000000101003c0>]  [<0000000010108460>] 
[<0000000010108518>] 
 [<00000000101317dc>]  [<0000000010137c98>]  [<0000000010326804>] 
[<0000000010100390>] 
 [<0000000010137960>] 


Press Q/q to quit, Enter to continue: 

Kernel Fault: Code=26 regs=0000000014ced200 (Addr=0000000000000008)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Not tainted
r00-03  0000000000000000 0000000010518e50 0000000010143bd4
0000000010538b48
r04-07  0000000000000000 000000000800000f 000000001046ce00
0000000000000000
r08-11  0000000010538898 00000000105389d8 00000000103fc4b0
0000000010538898
r12-15  00000000103fc4a0 0000000010538898 0000000010538898
0000000010538898
r16-19  00000000103fc480 0000000010538898 0000000010538898
0000000010538b48
r20-23  0000000000000000 0000000010519e50 0000000000002e49
0000000000002eac
r24-27  0000000000000001 0000000000002eac 00000000103df7c0
000000001046ce00
r28-31  0000000000000000 0000000014ced1f0 0000000014ced200
000000001047be00
sr0-3   0000000000000000 0000000000000000 0000000000000000
0000000000000000
sr4-7   0000000000000000 0000000000000000 0000000000000000
0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010143c48
0000000010143c4c
 IIR: 0e8312d0    ISR: 0000000000000000  IOR: 0000000000000008
 CPU:        0   CR30: 0000000014cec000 CR31: 00000000104f0000
 ORIG_R28: 0000000010325edc


HTH,


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/
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From - Thu Nov 08 21:25:56 2018
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Subject: [parisc-linux] gcc-snapshot (3.3) and linux-2.4.20-pa13
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Debian's gcc snapshot won't compile the kernel, (probably) due to the
same reason as here:

====
Changes since 1.46: +1 -1 lines
Diff to previous 1.46

2.5.47-pa8: remove reference to $$mulU millicode function for gcc 3.3
=====

at least it's the same error message ('undefined reference ...').

greetings max



From - Thu Nov 08 21:25:56 2018
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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.20-pa14 64bit crash on boot - A500-5X
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Xref: news.gmane.org gmane.linux.ports.parisc:17103

I strike again, now being able to provide a first analysis of the reg dump:

IAOQ = 0000000010143c48
AOUT: 0x10143c48 mod_timer+b0
Func: mod_timer, Off: b0, Addr: 0x10143c48
    10143c40:	0e 70 10 d3 	ldd 8(sr0,r19),r19
    10143c44:	0e 60 10 d4 	ldd 0(sr0,r19),r20
    10143c48:	0e 83 12 d0 	std r3,8(sr0,r20)
    10143c4c:	0c 74 12 c0 	std r20,0(sr0,r3)
    10143d2c:	e8 1f 1e 1d 	b,l 10143c40 <mod_timer+0xa8>,r0
    10143d60:	e8 1f 1d b5 	b,l 10143c40 <mod_timer+0xa8>,r0

GR2 = 0000000010143bd4
AOUT: 0x10143bd4 mod_timer+3c
Func: mod_timer, Off: 3c, Addr: 0x10143bd4
    10143bd0:	08 01 02 5a 	copy r1,r26
    10143bd4:	08 06 02 5b 	copy r6,dp
    10143bd8:	70 64 00 20 	std r4,10(r3)
    10143bdc:	0c 60 10 d4 	ldd 0(sr0,r3),r20

GR3 = 0000000010538b48
AOUT: 0x10538b48 hp_diva_timer+0
Func: hp_diva_timer, Off: 0, Addr: 0x10538b48

GR20 = 0000000000000000

Kernel addresses on the stack:
[<0000000010143bd4>]  mod_timer+3c
[<000000001014bf2c>]  dev_probe_lock+54
[<0000000010281a94>]  pci_announce_device+7c
[<000000001014018c>]  __request_region+134
[<0000000010281b98>]  pci_register_driver+b8
[<00000000101003c0>]  init+30
[<0000000010108460>]  ret_from_kernel_thread+1c
[<0000000010108518>]  _switch_to_ret+0
[<00000000101317dc>]  __wake_up+13c
[<0000000010137c98>]  release_console_sem+1a0
[<0000000010326804>]  __umoddi3+1c
[<0000000010100390>]  init+0
[<0000000010137960>]  printk+230

spin_unlock(000000001039a8d0): no lock cpu 0 curr PC 00000000101101a4
0x1039a8d0 pdc_lock+0
0x101101a4 pdc_emergency_unlock+24

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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> ====
> Changes since 1.46: +1 -1 lines
> Diff to previous 1.46
> 
> 2.5.47-pa8: remove reference to $$mulU millicode function for gcc 3.3
> =====

The routine doesn't exist.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi,

I got some problems with using an IDE controller with my C240 (same in 
my C360). The controller itself works best in x86 architectures. It's a 
non RAID controller produces by Promise. The kernel is a 
linux-2.4.20-pa14 whith all the IDE stuff built as kernel modules. 
Earlier replies to my problem says that it could be a problem with the 
probing of the intel's default IO ports for IDE controllers.

Here is what I did: Building the kernel - booting the system - doing a 
modprobe -k ide-disk (from remote) - pressing Transfer Of Control - 
interrupting boot sequence and typing ser pim. And here is the output of 
the console: (thank You for helping - Joerg)

hp-c240 login:
Debian GNU/Linux testing/unstable hp-c240 tts/0

hp-c240 login: Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PDC20268: IDE controller on PCI bus 00 dev 08
PDC20268: chipset revision 2
PDC20268: not 100% native mode: will probe irqs later


Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PDC20268: IDE controller on PCI bus 00 dev 08
PDC20268: chipset revision 2
PDC20268: not 100% native mode: will probe irqs later

Stack Dump:
  2f1a0900:  00000002 73747576 6f707172 6b6c6d6e
  2f1a08f0:  6768696a 1010fdec 00000000 0000000f
  2f1a08e0:  103dee76 10323810 10323b68 00000036
  2f1a08d0:  00000061 00000000 00000001 10323810
  2f1a08c0:  00000000 00000002 103df23f 00000010
  2f1a08b0:  103dee40 0002423c 00000400 1037da4c

Kernel addresses on the stack:
  [<1010fdec>]  [<0002423c>]  [<0002ec19>]  [<1024ba78>]
  [<00034b44>]  [<000204c8>]  [<00034b44>]  [<0002ebe8>]
  [<0002e898>]  [<1011cd58>]  [<102d0cec>]  [<00034b44>]
  [<00036010>]  [<1011ce84>]  [<00034b44>]  [<00036010>]
  [<000300ea>]  [<0002120c>]  [<00036010>]  [<0002ee98>]
  [<0002e898>]  [<1011cd58>]  [<00036010>]  [<00036010>]
  [<0002c180>]  [<0002ba01>]  [<000213e8>]  [<00020003>]
  [<10135ddc>]  [<0000fe30>]  [<0001eac3>]  [<00017af0>]
  [<0002b9cc>]  [<0002ba04>]  [<00036010>]  [<00010504>]
  [<1011de54>]  [<0002d000>]  [<0002c5c0>]  [<10104904>]
  [<0002c5b4>]  [<0002c5b4>]  [<0000a060>]  [<0002c5d0>]
  [<10108f90>]  [<10108084>]  [<10107cf4>]  [<1013fd44>]
  [<1013e638>]  [<1014ed24>]  [<0002c5b4>]  [<0001436b>]
  [<101205a8>]

High Priority Machine Check (HPMC): Code=1 regs=10313080 (Addr=00000000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000011100001100 Not tainted
r00-03  00000000 10320010 1010f840 000000ff
r04-07  0000fd00 0000fd1f 109ab400 0002e898
r08-11  109ab400 00000061 00000000 00000001
r12-15  00000000 2fda3ce0 2f1a0550 00000003
r16-19  00044c08 00045408 00000000 f200006f
r20-23  0000000e 0000000f 1026bee4 10323810
r24-27  0000fd1f 00000003 109ac160 10310010
r28-31  0000006f ffffe003 2f1a0900 1010f840
sr0-3   00000000 00000265 00000000 00000265
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1026bf10 1026bf14
  IIR: 00141860    ISR: 9227ffc8  IOR: 00000064
  CPU:        0   CR30: 2f1a0000 CR31: 103d0000
  ORIG_R28: 00000000



Firmware Version  5.8

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
    (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

   Processor   Speed            State           Coprocessor State  I/D Cache
   ---------  --------   ---------------------  ----------------- 
-------------
       0      236 MHz    Active                 Functional         2 MB/2 MB

   Central Bus Speed (in MHz) :        118

   Available memory (bytes)    : 536870912
   Good memory required (bytes):   44974080

   Primary boot path:    LAN.0.0.0.0.0.0
   Alternate boot path:  FWSCSI.6.0
   Console path:         GRAPHICS(4)
   Keyboard path:        PS2

CPU 0
WARNING:  Self tests have been disabled as a result of FASTBOOT
           being enabled.  To enable self tests, use the FASTBOOT
           command in the CONFIGURATION menu and reboot the system.


Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


------- Main Menu 
-------------------------------------------------------------

         Command                         Description
         -------                         -----------
         BOot [PRI|ALT|<path>]           Boot from specified path
         PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
         SEArch [DIsplay|IPL] [<path>]   Search for boot devices

         COnfiguration [<command>]       Access Configuration menu/commands
         INformation [<command>]         Access Information menu/commands
         SERvice [<command>]             Access Service menu/commands

         DIsplay                         Redisplay the current menu
         HElp [<menu>|<command>]         Display help for menu or command
         RESET                           Restart the system
-------
Main Menu: Enter command > ser pim

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp =   Fri Dec  13 23:00:06 GMT 2002    (20:02:12:13:23:00:06)

HPMC Chassis Codes = 0xcbf0  0x5007  0x5408  0x5508  0xcbfb

General Registers 0 - 31
00-03   0000000000000000  0000000010320010  000000001010f840 
00000000000000ff
04-07   000000000000fd00  000000000000fd1f  00000000109ab400 
000000000002e898
08-11   00000000109ab400  0000000000000061  0000000000000000 
0000000000000001
12-15   0000000000000000  000000002fda3ce0  000000002f1a0550 
0000000000000003
16-19   0000000000044c08  0000000000045408  0000000000000000 
00000000f200006f
20-23   000000000000000e  000000000000000f  000000001026bee4 
0000000010323810
24-27   000000000000fd1f  0000000000000003  00000000109ac160 
0000000010310010
28-31   000000000000006f  00000000ffffe003  000000002f1a0900 
000000001010f840

<Press any key to continue (q to quit)>

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000 
0000000000000000
08-11   00000000000004ca  0000000000000000  00000000000000c0 
000000000000001f
12-15   0000000000000000  0000000000000000  0000000000107000 
00000000f0000000
16-19   000000195c1e11d2  0000000000000000  000000001026bf10 
0000000000141860
20-23   000000009227ffc8  c000000000000064  000000000004070c 
0000000080000000
24-27   000000000032d000  000000001f208000  00000000ffffffff 
00000000ffffffff
28-31   00000000ffffffff  00000000ffffffff  000000002f1a0000 
00000000103d0000

Space Registers 0 - 7
00-03   00000000          00000265          00000000          00000265
04-07   00000000          00000000          00000000          00000000

<Press any key to continue (q to quit)>

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x000000001026bf14
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0020000c
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffffa0000
System Requestor Address     = 0x0000000000000000
Check Summary                = 0x8002000040004000
Available Memory             = 0x0000000000000000
CPU Diagnose Register 2      = 0x0501000000000004
CPU Status Register 0        = 0x4420c20000000000
CPU Status Register 1        = 0x8002000000000000
SADD LOG                     = 0x0800000000000000
Read Short LOG               = 0xc10010fff200006f

<Press any key to continue (q to quit)>

Memory Error Log Information:

Timestamp =   Fri Dec  13 23:00:07 GMT 2002    (20:02:12:13:23:00:07)

    No memory errors logged


I/O Module Error Log Information:

Timestamp =   Fri Dec  13 23:00:08 GMT 2002    (20:02:12:13:23:00:08)

Bus    HPA       Module Type      Path  Slt Md Sev  Estat Requestor 
Responder
--- ---------- ---------------- -------- -- -- ---- ----- ---------- 
----------
  0  0xfff88000 I/O Adapter      8         2  0  he   0x0d 0x00000000 
0x00000000
  1  0xf203f000 Bus Converter    8/63     15  3  se   0x07 0xfffa0800 
0xf200006f
  1  0xf2000000 Bus Bridge (PCI)                      0x07 0xf2000000 
0x0000fd1f

PCI Device Failure Information

Physical Slot   Logical   Path
-------------  ----------------------------
    1            0/255/255/255/8/0/1/0



PCI Error Summary

A Processer IO error occurred. The GSC-PCI bridge was
the requestor. Error bit indicates a master timeout
or master Abort was received during a PCI transaction.

Bus    HPA       Module Type      Path  Slt Md Sev  Estat Requestor 
Responder
--- ---------- ---------------- -------- -- -- ---- ----- ---------- 
----------
  0  0xfff8a000 I/O Adapter      10        2  2  he   0x0d 0x00000000 
0x00000000

<Press any key to continue (q to quit)>
Main Menu: Enter command >



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] problems with PCI IDE controller
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Xref: news.gmane.org gmane.linux.ports.parisc:17106

On Sat, Dec 14, 2002 at 12:48:43PM +0100, Joerg Steindlberger wrote:
> Here is what I did: Building the kernel - booting the system - doing a 
> modprobe -k ide-disk (from remote) - pressing Transfer Of Control - 
> interrupting boot sequence and typing ser pim. And here is the output of 
> the console: (thank You for helping - Joerg)

Great.  Now...

http://www.parisc-linux.org/faq/kernelbug-howto.html

I notice you have devfs compiled in.  I can't recommend this course
of action, though I coubt it's the root of the problem.

> hp-c240 login:
> Debian GNU/Linux testing/unstable hp-c240 tts/0
> 
> hp-c240 login: Uniform Multi-Platform E-IDE driver Revision: 6.31
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> PDC20268: IDE controller on PCI bus 00 dev 08
> PDC20268: chipset revision 2
> PDC20268: not 100% native mode: will probe irqs later
> 
> 
> Uniform Multi-Platform E-IDE driver Revision: 6.31
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> PDC20268: IDE controller on PCI bus 00 dev 08
> PDC20268: chipset revision 2
> PDC20268: not 100% native mode: will probe irqs later
> 
> Stack Dump:
>   2f1a0900:  00000002 73747576 6f707172 6b6c6d6e
>   2f1a08f0:  6768696a 1010fdec 00000000 0000000f
>   2f1a08e0:  103dee76 10323810 10323b68 00000036
>   2f1a08d0:  00000061 00000000 00000001 10323810
>   2f1a08c0:  00000000 00000002 103df23f 00000010
>   2f1a08b0:  103dee40 0002423c 00000400 1037da4c
> 
> Kernel addresses on the stack:
>   [<1010fdec>]  [<0002423c>]  [<0002ec19>]  [<1024ba78>]
>   [<00034b44>]  [<000204c8>]  [<00034b44>]  [<0002ebe8>]
>   [<0002e898>]  [<1011cd58>]  [<102d0cec>]  [<00034b44>]
>   [<00036010>]  [<1011ce84>]  [<00034b44>]  [<00036010>]
>   [<000300ea>]  [<0002120c>]  [<00036010>]  [<0002ee98>]
>   [<0002e898>]  [<1011cd58>]  [<00036010>]  [<00036010>]
>   [<0002c180>]  [<0002ba01>]  [<000213e8>]  [<00020003>]
>   [<10135ddc>]  [<0000fe30>]  [<0001eac3>]  [<00017af0>]
>   [<0002b9cc>]  [<0002ba04>]  [<00036010>]  [<00010504>]
>   [<1011de54>]  [<0002d000>]  [<0002c5c0>]  [<10104904>]
>   [<0002c5b4>]  [<0002c5b4>]  [<0000a060>]  [<0002c5d0>]
>   [<10108f90>]  [<10108084>]  [<10107cf4>]  [<1013fd44>]
>   [<1013e638>]  [<1014ed24>]  [<0002c5b4>]  [<0001436b>]
>   [<101205a8>]
> 
> High Priority Machine Check (HPMC): Code=1 regs=10313080 (Addr=00000000)
> 
>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000011100001100 Not tainted
> r00-03  00000000 10320010 1010f840 000000ff
> r04-07  0000fd00 0000fd1f 109ab400 0002e898
> r08-11  109ab400 00000061 00000000 00000001
> r12-15  00000000 2fda3ce0 2f1a0550 00000003
> r16-19  00044c08 00045408 00000000 f200006f
> r20-23  0000000e 0000000f 1026bee4 10323810
> r24-27  0000fd1f 00000003 109ac160 10310010
> r28-31  0000006f ffffe003 2f1a0900 1010f840
> sr0-3   00000000 00000265 00000000 00000265
> sr4-7   00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 1026bf10 1026bf14
>   IIR: 00141860    ISR: 9227ffc8  IOR: 00000064
>   CPU:        0   CR30: 2f1a0000 CR31: 103d0000
>   ORIG_R28: 00000000
> 
> 
> 
> Firmware Version  5.8
> 
> Duplex Console IO Dependent Code (IODC) revision 1
> 
> ------------------------------------------------------------------------------
>     (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
> ------------------------------------------------------------------------------
> 
>    Processor   Speed            State           Coprocessor State  I/D Cache
>    ---------  --------   ---------------------  ----------------- 
> -------------
>        0      236 MHz    Active                 Functional         2 MB/2 MB
> 
>    Central Bus Speed (in MHz) :        118
> 
>    Available memory (bytes)    : 536870912
>    Good memory required (bytes):   44974080
> 
>    Primary boot path:    LAN.0.0.0.0.0.0
>    Alternate boot path:  FWSCSI.6.0
>    Console path:         GRAPHICS(4)
>    Keyboard path:        PS2
> 
> CPU 0
> WARNING:  Self tests have been disabled as a result of FASTBOOT
>            being enabled.  To enable self tests, use the FASTBOOT
>            command in the CONFIGURATION menu and reboot the system.
> 
> 
> Processor is booting from first available device.
> 
> To discontinue, press any key within 10 seconds.
> 
> Boot terminated.
> 
> 
> ------- Main Menu 
> -------------------------------------------------------------
> 
>          Command                         Description
>          -------                         -----------
>          BOot [PRI|ALT|<path>]           Boot from specified path
>          PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
>          SEArch [DIsplay|IPL] [<path>]   Search for boot devices
> 
>          COnfiguration [<command>]       Access Configuration menu/commands
>          INformation [<command>]         Access Information menu/commands
>          SERvice [<command>]             Access Service menu/commands
> 
>          DIsplay                         Redisplay the current menu
>          HElp [<menu>|<command>]         Display help for menu or command
>          RESET                           Restart the system
> -------
> Main Menu: Enter command > ser pim
> 
> PROCESSOR PIM INFORMATION
> 
> -----------------  Processor 0 HPMC Information ------------------
> 
> Timestamp =   Fri Dec  13 23:00:06 GMT 2002    (20:02:12:13:23:00:06)
> 
> HPMC Chassis Codes = 0xcbf0  0x5007  0x5408  0x5508  0xcbfb
> 
> General Registers 0 - 31
> 00-03   0000000000000000  0000000010320010  000000001010f840 
> 00000000000000ff
> 04-07   000000000000fd00  000000000000fd1f  00000000109ab400 
> 000000000002e898
> 08-11   00000000109ab400  0000000000000061  0000000000000000 
> 0000000000000001
> 12-15   0000000000000000  000000002fda3ce0  000000002f1a0550 
> 0000000000000003
> 16-19   0000000000044c08  0000000000045408  0000000000000000 
> 00000000f200006f
> 20-23   000000000000000e  000000000000000f  000000001026bee4 
> 0000000010323810
> 24-27   000000000000fd1f  0000000000000003  00000000109ac160 
> 0000000010310010
> 28-31   000000000000006f  00000000ffffe003  000000002f1a0900 
> 000000001010f840
> 
> <Press any key to continue (q to quit)>
> 
> Control Registers 0 - 31
> 00-03   0000000000000000  0000000000000000  0000000000000000 
> 0000000000000000
> 04-07   0000000000000000  0000000000000000  0000000000000000 
> 0000000000000000
> 08-11   00000000000004ca  0000000000000000  00000000000000c0 
> 000000000000001f
> 12-15   0000000000000000  0000000000000000  0000000000107000 
> 00000000f0000000
> 16-19   000000195c1e11d2  0000000000000000  000000001026bf10 
> 0000000000141860
> 20-23   000000009227ffc8  c000000000000064  000000000004070c 
> 0000000080000000
> 24-27   000000000032d000  000000001f208000  00000000ffffffff 
> 00000000ffffffff
> 28-31   00000000ffffffff  00000000ffffffff  000000002f1a0000 
> 00000000103d0000
> 
> Space Registers 0 - 7
> 00-03   00000000          00000265          00000000          00000265
> 04-07   00000000          00000000          00000000          00000000
> 
> <Press any key to continue (q to quit)>
> 
> IIA Space                    = 0x0000000000000000
> IIA Offset                   = 0x000000001026bf14
> Check Type                   = 0x20000000
> CPU State                    = 0x9e000004
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x0020000c
> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00000000
> System Responder Address     = 0xfffffffffffa0000
> System Requestor Address     = 0x0000000000000000
> Check Summary                = 0x8002000040004000
> Available Memory             = 0x0000000000000000
> CPU Diagnose Register 2      = 0x0501000000000004
> CPU Status Register 0        = 0x4420c20000000000
> CPU Status Register 1        = 0x8002000000000000
> SADD LOG                     = 0x0800000000000000
> Read Short LOG               = 0xc10010fff200006f
> 
> <Press any key to continue (q to quit)>
> 
> Memory Error Log Information:
> 
> Timestamp =   Fri Dec  13 23:00:07 GMT 2002    (20:02:12:13:23:00:07)
> 
>     No memory errors logged
> 
> 
> I/O Module Error Log Information:
> 
> Timestamp =   Fri Dec  13 23:00:08 GMT 2002    (20:02:12:13:23:00:08)
> 
> Bus    HPA       Module Type      Path  Slt Md Sev  Estat Requestor 
> Responder
> --- ---------- ---------------- -------- -- -- ---- ----- ---------- 
> ----------
>   0  0xfff88000 I/O Adapter      8         2  0  he   0x0d 0x00000000 
> 0x00000000
>   1  0xf203f000 Bus Converter    8/63     15  3  se   0x07 0xfffa0800 
> 0xf200006f
>   1  0xf2000000 Bus Bridge (PCI)                      0x07 0xf2000000 
> 0x0000fd1f
> 
> PCI Device Failure Information
> 
> Physical Slot   Logical   Path
> -------------  ----------------------------
>     1            0/255/255/255/8/0/1/0
> 
> 
> 
> PCI Error Summary
> 
> A Processer IO error occurred. The GSC-PCI bridge was
> the requestor. Error bit indicates a master timeout
> or master Abort was received during a PCI transaction.
> 
> Bus    HPA       Module Type      Path  Slt Md Sev  Estat Requestor 
> Responder
> --- ---------- ---------------- -------- -- -- ---- ----- ---------- 
> ----------
>   0  0xfff8a000 I/O Adapter      10        2  2  he   0x0d 0x00000000 
> 0x00000000
> 
> <Press any key to continue (q to quit)>
> Main Menu: Enter command >
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


From - Thu Nov 08 21:25:56 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] comparison of function pointers
Date: Sat, 14 Dec 2002 22:02:23 -0500 (EST)
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To: carlos@baldric.uwo.ca (Carlos O'Donell)
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GCC 3.3 and later has a new function __canonicalize_funcptr_for_compare
in libgcc.a for comparing function pointers.  There are routines in glibc
that compare function pointers and therefore depend on the presence
of this function if glibc is built with gcc-3.3 or later.  These
are gconv_open.o, signal.o, sigvec.o, sysv_signal.o, sigset.o, malloc.o
sleep.o, getaddrinfo.o, svc.o, svc_simple.o.

Earlier versions of gcc don't have the function.  Thus, if you try to
use an earlier version of gcc with a library built with gcc-3.3 or later,
the routine won't be present in libgcc.  One solution might be to add
__canonicalize_funcptr_for_compare to glibc.  This might be a good idea
as it depends closely on the implementation of the dynamic linker
interface in glibc for function calls.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: grundler@dsl2.external.hp.com (Grant Grundler)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.20-pa14 64bit crash on boot - A500-5X
Date: Sat, 14 Dec 2002 20:53:59 -0700
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On Fri, Dec 13, 2002 at 11:35:40PM +0100, Thibaut VARENE wrote:
> AOUT: 0x10143bd4 mod_timer+3c
...
> AOUT: 0x10538b48 hp_diva_timer+0

Good News: I reproduced this and fixed it.
But I don't know exactly what I did that fixed it. :^(
(drawbacks of the shotgun approach).
Fairly small patch is on ftp.parisc-linux.org/patches/diff-2.4.20-timer
This isn't ready to commit until someone narrows it down to one thing.

Bad News: SMP kernel now hangs during SCSI device discover.
I haven't tried CONFIG_SMP=n yet and I guess that would be a next step.
Console output of the a500-44 boot with 2.4.20-pa14 + patch is on
	dsl2.e.h.c:~grundler/rp2470-2.4.20-symhang-01

grant


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From: Joel Soete <joel.soete@freebel.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] gcc-snapshot (3.3) and linux-2.4.20-pa13
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Max,

Sorry, I would have to mentionned that:
those stuff can be saffely removed (as far as can test we gcc-3.0 and 
later as 3.1 3.2 and 3.3 (aka snapshot))

Cheers,
	Joel

M. Grabert wrote:
> Debian's gcc snapshot won't compile the kernel, (probably) due to the
> same reason as here:
> 
> ====
> Changes since 1.46: +1 -1 lines
> Diff to previous 1.46
> 
> 2.5.47-pa8: remove reference to $$mulU millicode function for gcc 3.3
> =====
> 
> at least it's the same error message ('undefined reference ...').
> 
> greetings max
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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Subject: [parisc-linux] Is this system_irqsave diff is correct?
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This is a multi-part message in MIME format.
--------------020609020700060903080206
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Hi all,

is this  diff is right:
--- system_irqsave.h.orig       2002-12-15 13:02:50.000000000 +0000
+++ system_irqsave.h    2002-12-15 13:03:29.000000000 +0000
@@ -9,8 +9,7 @@

  #define local_irq_save(x) \
         __asm__ __volatile__("rsm %1,%0" : "=r" (x) :"i" (PSW_I) : 
"memory" )
-#define local_irq_restore(x) \
-       __asm__ __volatile__("mtsm %0" : : "r" (x) : "memory" )
+#define local_irq_restore(x) __restore_flags(x)
  #define local_irq_disable() __cli()
  #define local_irq_enable()  __sti()

Thanks for attention,
	Joel

--------------020609020700060903080206
Content-Type: text/plain;
 name="system_irqsave.h.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="system_irqsave.h.diff"

--- system_irqsave.h.orig	2002-12-15 13:02:50.000000000 +0000
+++ system_irqsave.h	2002-12-15 13:03:29.000000000 +0000
@@ -9,8 +9,7 @@
 
 #define local_irq_save(x) \
 	__asm__ __volatile__("rsm %1,%0" : "=r" (x) :"i" (PSW_I) : "memory" )
-#define local_irq_restore(x) \
-	__asm__ __volatile__("mtsm %0" : : "r" (x) : "memory" )
+#define local_irq_restore(x) __restore_flags(x)
 #define local_irq_disable() __cli()
 #define local_irq_enable()  __sti()
 

--------------020609020700060903080206--



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I have HP 712/80, with LASI-chip - So soundcard is Harmony audio.
I just compiled kernel, PA Harmony audio driver included into kernel,
but without any kind of OSS sound modules. 
mikmod gives this: 
MikMod initialisation error : This driver supports uLaw output (8 bit mono, 8 kHz) only
Do i need to have OSS sound modules to be able to play 16bit stereo?
And if so, as modules or into kernel?
And what kind of OSS sound modules do i need :o



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Subject: Re: [parisc-linux] HP 712/80, LASI Harmony Audio and 16-bit's
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> I have HP 712/80, with LASI-chip - So soundcard is Harmony audio.
> I just compiled kernel, PA Harmony audio driver included into kernel,
> but without any kind of OSS sound modules.
> mikmod gives this:
> MikMod initialisation error : This driver supports uLaw output (8 bit
mono, 8 kHz) only
> Do i need to have OSS sound modules to be able to play 16bit stereo?

I also have a 712/80. I could do a 'cat foo.au > /dev/audio' without the OSS
modules compiled into the kernel or as module.

> And if so, as modules or into kernel?

Probably doesn't matter.

Greetings,
Tim



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On Sat, 2002-12-14 at 13:10, Matthew Wilcox wrote:
> > hp-c240 login: Uniform Multi-Platform E-IDE driver Revision: 6.31
> > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> > PDC20268: IDE controller on PCI bus 00 dev 08
> > PDC20268: chipset revision 2
> > PDC20268: not 100% native mode: will probe irqs later

Is this a plug in card. For some reason it has been left in non native
mode so won't work as a plug in board.



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> On Sat, 2002-12-14 at 13:10, Matthew Wilcox wrote:
> > > hp-c240 login: Uniform Multi-Platform E-IDE driver Revision: 6.31
> > > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> > > PDC20268: IDE controller on PCI bus 00 dev 08
> > > PDC20268: chipset revision 2
> > > PDC20268: not 100% native mode: will probe irqs later
>
> Is this a plug in card. For some reason it has been left in non native
> mode so won't work as a plug in board.

I don't think this is a problem. I have a similar card in my home PC, and
it prints the same thing (re: not 100% native mode). Here is an excerpt
from my PC's boot messages running 2.4.19:

    Uniform Multi-Platform E-IDE driver Revision: 6.31
    ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
    PDC20267: IDE controller on PCI bus 02 dev 08
    PCI: Found IRQ 10 for device 02:01.0
    PDC20267: chipset revision 2
    PDC20267: not 100% native mode: will probe irqs later
    PDC20267: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode.
	ide0: BM-DMA at 0xa400-0xa407, BIOS settings: hda:pio, hdb:pio
	ide1: BM-DMA at 0xa408-0xa40f, BIOS settings: hdc:pio, hdd:pio

All of my hard drives are on this card, so I know it works just fine (I
use ide=reverse so that my hard drives start with hda. I keep my CD and
DVD drives on the motherboard IDE buses).

John


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I have a B180 that I have been using as a firewall/router for some time
now. Along with the built in tulip ethernet card, I also have a Adaptec
quad ethernet card that is also tulip based. This has worked fine in
2.4.17-2.4.19 but no longer works in 2.4.20-pa13. Although I can
ifconfig up the interfaces, no traffic goes through and mii-tool reports
that the interfaces do not exist (except for the built in one).

In the following dmesg out takes for 2.4.20-pa13 and 2.4.19-32 (debian),
it seems that the older kernel is finding the transceiver and
successfully auto-negotiating the link while the newer is not.

Any ideas how to solve this? Any help would be greatly appreciated.

Linux version 2.4.20-pa13 (root@landmine) (gcc version 3.0.4) #3 Tue Dec 10 01:35:34 MST 2002
...
Linux Tulip driver version 0.9.15-pre12 (Aug 9, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 48 at 0xf0fff000, 00:60:B0:C4:5E:7B, IRQ 96.
eth1: Digital DS21140 Tulip rev 34 at 0xf0efc000, 00:00:D1:1B:C8:90, IRQ 98.
eth2: Digital DS21140 Tulip rev 34 at 0xf0efd000, 00:00:D1:1B:C8:B5, IRQ 99.
eth3: Digital DS21140 Tulip rev 34 at 0xf0efe000, 00:00:D1:1B:C8:95, IRQ 96.
eth4: Digital DS21140 Tulip rev 34 at 0xf0eff000, 00:00:D1:1B:70:33, IRQ 97.
...until ifconfig eth0-eth4
eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.

Linux version 2.4.19-32 (root@j5k) (gcc version 3.0.4) #1 Fri Nov 22 23:27:00 MST 2002
...
Linux Tulip driver version 0.9.15-pre11 (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 48 at 0xff00, 00:60:B0:C4:5E:7B, IRQ 96.
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
tulip1:  MII transceiver #1 config 3100 status 7849 advertising 01e1.
eth1: Digital DS21140 Tulip rev 34 at 0xec00, 00:00:D1:1B:C8:90, IRQ 98.
tulip2:  EEPROM default media type Autosense.
tulip2:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
tulip2:  MII transceiver #1 config 3100 status 7849 advertising 01e1.
eth2: Digital DS21140 Tulip rev 34 at 0xed00, 00:00:D1:1B:C8:B5, IRQ 99.
tulip3:  EEPROM default media type Autosense.
tulip3:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
tulip3:  MII transceiver #1 config 3100 status 7849 advertising 01e1.
eth3: Digital DS21140 Tulip rev 34 at 0xee00, 00:00:D1:1B:C8:95, IRQ 96.
tulip4:  EEPROM default media type Autosense.
tulip4:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
tulip4:  MII transceiver #1 config 3100 status 7849 advertising 01e1.
eth4: Digital DS21140 Tulip rev 34 at 0xef00, 00:00:D1:1B:70:33, IRQ 97.
...until ifconfig eth0-eth4
eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.
eth1: Setting full-duplex based on MII#1 link partner capability of 45e1.
eth2: Setting full-duplex based on MII#1 link partner capability of 45e1.
eth3: Setting full-duplex based on MII#1 link partner capability of 41e1.
eth4: Setting full-duplex based on MII#1 link partner capability of 41e1.

>>>------>

--

+-------------+-----------------------+---------------+
| Ed Schaller | Dark Mist Networking  | psuedoshroom  |
+-------------+-----------------------+---------------+

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On Mon, 2002-12-16 at 06:09, John Marvin wrote:
> > On Sat, 2002-12-14 at 13:10, Matthew Wilcox wrote:
> > > > hp-c240 login: Uniform Multi-Platform E-IDE driver Revision: 6.31
> > > > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> > > > PDC20268: IDE controller on PCI bus 00 dev 08
> > > > PDC20268: chipset revision 2
> > > > PDC20268: not 100% native mode: will probe irqs later
> >
> > Is this a plug in card. For some reason it has been left in non native
> > mode so won't work as a plug in board.
> 
> I don't think this is a problem. I have a similar card in my home PC, and
> it prints the same thing (re: not 100% native mode). Here is an excerpt
> from my PC's boot messages running 2.4.19:

A PC is a very different thing

In legacy mode the PCI BAR registers are ignored, the I/O decode is at
0x170 etc and interrupts are flagged by the ISA legacy not by the PCI
bus.

That isnt going to work very well on your average PA-RISC box. Most
probably you want to force the chip into native mode on pa-risc
hardware.




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Subject: Re: [parisc-linux] problems with PCI IDE controller
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> > On Sat, 2002-12-14 at 13:10, Matthew Wilcox wrote:
> > > > hp-c240 login: Uniform Multi-Platform E-IDE driver Revision: 6.31
> > > > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> > > > PDC20268: IDE controller on PCI bus 00 dev 08
> > > > PDC20268: chipset revision 2
> > > > PDC20268: not 100% native mode: will probe irqs later

See the same on the pc that I have.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: jsoe0708@tiscali.be
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Subject: [parisc-linux] YA pb with PCI IDE (my merge 2.4.21-pre1)
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Hi Alan,

Worried about ext3 pb, I try to merge parisc kernel 2.4.20-pa14 with 2.4.=
21-pre1.
This merge seems to works fine on a b180l+ (without pci devices).
But still boot twice (??) and crash on a b2k with an ide cdrom.

So with k-2.4.20-pa14 here is the ide cdrom identification:
...
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=3D=
xx
NS87415: IDE controller on PCI bus 00 dev 70
NS87415: chipset revision 3
NS87415: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0x0900-0x0907, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0x0908-0x090f, BIOS settings: hdc:pio, hdd:pio
hda: LTN485S, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 103
hda: ATAPI 48X CD-ROM drive, 120kB Cache
Uniform CD-ROM driver Revision: 3.12
...

And now with k-2.4.21-pre1-pa-alpha:
Linux version 2.4.21-pre1-pa14 (root@palx2000) (gcc version 3.0.4) #1 Mon=

Dec 16 15:05:24 CET 2002
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
...
Uniform Multi-Platform E-IDE driver Revision: 7.00beta-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=3D=
xx
NS87415: IDE controller at PCI slot 00:0e.0
NS87415: chipset revision 3
NS87415: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0x0900-0x0907, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0x0908-0x090f, BIOS settings: hdc:pio, hdd:pio


Linux version 2.4.21-pre1-pa14 (root@palx2000) (gcc version 3.0.4) #1 Mon=

Dec 16 15:05:24 CET 2002
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005d00 00000481 00000000 00000002 77e93910 100000f0 00000008 0000=
00b2

...

Just have to explain that after previous 'hdc:pio, hdd:pio' it wait less
than a second then reboot and finaly crash as follow:

...
Uniform Multi-Platform E-IDE driver Revision: 7.00beta-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=3D=
xx
NS87415: IDE controller at PCI slot 00:0e.0
NS87415: chipset revision 3
NS87415: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0x0900-0x0907, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0x0908-0x090f, BIOS settings: hdc:pio, hdd:pio

Stack Dump:
 1008c800:  04100800 1021e454 1008c780 00061a80
 1008c7f0:  000000df 1033a010 00000000 00c80000
 1008c7e0:  000000a0 000f4240 17d78400 00000003
 1008c7d0:  891511dd 00022520 f0000174 f000017c
 1008c7c0:  1036e468 f0400004 00000000 ffffffff
 1008c7b0:  00000000 102159fc 1034a810 1034a810

Kernel addresses on the stack:
 [<1021e454>]  [<102159fc>]  [<102141d0>]  [<102141e4>]
 [<101053a4>]  [<10214acc>]  [<10213a1c>]  [<1021560c>]
 [<101003d4>]  [<10108c4c>]  [<10108cf4>]  [<10163f64>]
 [<1011dbf4>]  [<10164528>]  [<1011df6c>]  [<101647bc>]
 [<101003c4>]  [<1011de40>]  [<10121714>]

High Priority Machine Check (HPMC): Code=3D1 regs=3D1033d080 (Addr=3D0000=
0000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111110100001101 Not tainted
r00-03  00000000 1034a010 10110848 000000ff
r04-07  1036e468 1036e3e0 103555c0 000000ec
r08-11  0000000f 1034a810 1034a810 1034d810
r12-15  00000000 ffffffff 00000000 f0400004
r16-19  f00008c4 f000017c f0000174 fee00000
r20-23  0000000f 100b4160 10111bd0 000f4240
r24-27  00000e06 fee00e06 100b4160 1033a010
r28-31  000000df 00061a80 1008c800 10110848
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10111be0 10111be4
 IIR: 0f20001c    ISR: a607fffb  IOR: 80200e06
 CPU:        0   CR30: 1008c000 CR31: 103f0000
 ORIG_R28: 00000000


Well, I can try with this dump to use Thibaut 'dump_analyser.sh' but I do=
ubt
to obtain relevant info because of the two successive kernel launch?

May be can you advise me on a start point of investigation: it is the fir=
st
time I met this kind of two successive boot?

Thanks in advance for your attention,
    Joel


PS1: I join a full log including a normal 2.4.20-pa14 boot, the abnormal
2.4.21-pr1 crash and finaly the pim info.
PS2: it is a 32bits kernel build on a 'unstable' debian distro updated th=
is
morning with gcc-3.0.4

*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be




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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: [parisc-linux] Re: YA pb with PCI IDE (my merge 2.4.21-pre1)
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On Mon, 2002-12-16 at 17:06, jsoe0708@tiscali.be wrote:
> Hi Alan,
> 
> Worried about ext3 pb, I try to merge parisc kernel 2.4.20-pa14 with 2.4.21-pre1.
> This merge seems to works fine on a b180l+ (without pci devices).
> But still boot twice (??) and crash on a b2k with an ide cdrom.

I've sent the PCI fixup patch to linux-kernel. Depending upon how the
PA-RISC system interfaces to the IDE controller you may also need
platform specific fixups or to drop the chip into Native mode.

Someone at HP can probably answer that bit



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Re: YA pb with PCI IDE (my merge 2.4.21-pre1)
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On Mon, Dec 16, 2002 at 06:04:26PM +0000, Alan Cox wrote:
> On Mon, 2002-12-16 at 17:06, jsoe0708@tiscali.be wrote:
> > Hi Alan,
> > 
> > Worried about ext3 pb, I try to merge parisc kernel 2.4.20-pa14 with 2.4.21-pre1.
> > This merge seems to works fine on a b180l+ (without pci devices).
> > But still boot twice (??) and crash on a b2k with an ide cdrom.
> 
> I've sent the PCI fixup patch to linux-kernel. Depending upon how the
> PA-RISC system interfaces to the IDE controller you may also need
> platform specific fixups or to drop the chip into Native mode.

You mean the "IDE but no disks" patch:
http://www.uwsg.iu.edu/hypermail/linux/kernel/0212.2/0105.html ?
If so, that might be relevant, but have davem's concerns about this IDE
code being broken on big-endian machines been addressed?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Re: YA pb with PCI IDE (my merge 2.4.21-pre1)
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On Mon, 2002-12-16 at 17:29, Matthew Wilcox wrote:
> You mean the "IDE but no disks" patch:
> http://www.uwsg.iu.edu/hypermail/linux/kernel/0212.2/0105.html ?
> If so, that might be relevant, but have davem's concerns about this IDE
> code being broken on big-endian machines been addressed?

Platform dependant.

The pre1 code fails if:
	You use the mmio ops not the pio ops on a big endian box (except PPC)
	Your pci_resource_foo() returns a value with the top 32bit used

Both of those are fixed in Marcelo's tree, although platforms may need
to define some functions. Dave has the updated code running on sparc64



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From: jsoe0708@tiscali.be
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Subject: [parisc-linux] Re: YA pb with PCI IDE (my merge 2.4.21-pre1)
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>
>On Mon, 2002-12-16 at 17:06, jsoe0708@tiscali.be wrote:
>> Hi Alan,
>> 
>> Worried about ext3 pb, I try to merge parisc kernel 2.4.20-pa14 with
2.4.21-pre1.
>> This merge seems to works fine on a b180l+ (without pci devices).
>> But still boot twice (??) and crash on a b2k with an ide cdrom.
>
>I've sent the PCI fixup patch to linux-kernel. Depending upon how the
>PA-RISC system interfaces to the IDE controller you may also need
>platform specific fixups or to drop the chip into Native mode.
>
>Someone at HP can probably answer that bit
>
Thanks Alan,
    Joel


*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be





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Subject: Re: [parisc-linux] Re: YA pb with PCI IDE (my merge 2.4.21-pre1)
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>On Mon, 2002-12-16 at 17:29, Matthew Wilcox wrote:
>> You mean the "IDE but no disks" patch:
>> http://www.uwsg.iu.edu/hypermail/linux/kernel/0212.2/0105.html ?
>> If so, that might be relevant, but have davem's concerns about this ID=
E
>> code being broken on big-endian machines been addressed?
>
>Platform dependant.
>
>The pre1 code fails if:
>	You use the mmio ops not the pio ops on a big endian box (except PPC)
>	Your pci_resource_foo() returns a value with the top 32bit used
>
>Both of those are fixed in Marcelo's tree, although platforms may need
>to define some functions. Dave has the updated code running on sparc64
>
I do well have to define new function in system.h system_irqsave.h as per=

attached doc (please consider revert) and based on mips implementation.
Is it what you spoke about?

Joel


*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be




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Subject: Re: [parisc-linux] Re: YA pb with PCI IDE (my merge 2.4.21-pre1)
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why are you sending word documents?  i'm not reading that shit.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Re: YA pb with PCI IDE (my merge 2.4.21-pre1)
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>
>why are you sending word documents?  i'm not reading that shit.
>
Sorry for confusion, it just contents ascii text. Trust me there is no re=
lation
with world, just an extension (a professional habit to make internal exch=
ange
more confortable for the one not familiar with unix).

Tell me what is your prefered extension, I will take care to adopt it.

Joel

*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be





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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: YA pb with PCI IDE (my merge 2.4.21-pre1)
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On Mon, Dec 16, 2002 at 07:13:53PM +0100, jsoe0708@tiscali.be wrote:
> >
> >why are you sending word documents?  i'm not reading that shit.
> >
> Sorry for confusion, it just contents ascii text. Trust me there is no relation
> with world, just an extension (a professional habit to make internal exchange
> more confortable for the one not familiar with unix).

something's very screwed up then, probably your mail server:

[-- Attachment #2: add_function.diff.doc --]
[-- Type: application/msword, Encoding: base64, Size: 7.8K --]

[-- application/msword is unsupported (use 'v' to view this part) --]

is what i see.

> Tell me what is your prefered extension, I will take care to adopt it.

i prefer it inlined, not as an attachment.  it's easier to reply to.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: jsoe0708@tiscali.be
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: YA pb with PCI IDE (my merge 2.4.21-pre1)
Date: Mon, 16 Dec 2002 19:19:02 +0100
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>
>why are you sending word documents?  i'm not reading that shit.
>
Please accept my appologies for confusion.
Here is the same info :-)

Joel


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X-Mozilla-Keys:                                                                                 
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From: jsoe0708@tiscali.be
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: YA pb with PCI IDE (my merge 2.4.21-pre1)
Date: Mon, 16 Dec 2002 19:24:28 +0100
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Cc: "Matthew Wilcox" <willy@debian.org>,
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Xref: news.gmane.org gmane.linux.ports.parisc:17128

>On Mon, Dec 16, 2002 at 07:13:53PM +0100, jsoe0708@tiscali.be wrote:
>> >
>> >why are you sending word documents?  i'm not reading that shit.
>> >
>> Sorry for confusion, it just contents ascii text. Trust me there is no=

>relation
>> with world, just an extension (a professional habit to make internal
exchange
>> more confortable for the one not familiar with unix).
>
>something's very screwed up then, probably your mail server:
>
>[-- Attachment #2: add_function.diff.doc --]
>[-- Type: application/msword, Encoding: base64, Size: 7.8K --]
>
>[-- application/msword is unsupported (use 'v' to view this part) --]
>
>is what i see.
>
That should be the webmail interface (I do not like it but have no choise=

behind a fw not allowing pop.mail connection)

>> Tell me what is your prefered extension, I will take care to adopt it.=

>
>i prefer it inlined, not as an attachment.  it's easier to reply to.
>
That is ok for me:

diff -NaurwbBX /Develop/Kernel-Linux/dontdiff linux-2.4.21-pre1-pa14-alph=
a/include/asm-parisc/ide.h
linux-2.4.21-pre1-pa14-beta/include/asm-parisc/ide.h
--- linux-2.4.21-pre1-pa14-alpha/include/asm-parisc/ide.h	2002-12-13 14:0=
0:09.000000000
+0100
+++ linux-2.4.21-pre1-pa14-beta/include/asm-parisc/ide.h	2002-12-15 15:34=
:01.000000000
+0100
@@ -20,6 +20,8 @@
 #define MAX_HWIFS	2
 #endif
 
+#define ide__sti()      __sti()
+
 static __inline__ int ide_default_irq(ide_ioreg_t base)
 {
 	switch (base) {
@@ -78,13 +80,116 @@
 #endif /* CONFIG_BLK_DEV_IDEPCI */
 }
 
-/*
+typedef union {
+	unsigned all			: 8;	/* all of the bits together */
+	struct {
+		unsigned bit7		: 1;	/* always 1 */
+		unsigned lba		: 1;	/* using LBA instead of CHS */
+		unsigned bit5		: 1;	/* always 1 */
+		unsigned unit		: 1;	/* drive select number, 0 or 1 */
+		unsigned head		: 4;	/* always zeros here */
+	} b;
+} select_t;
+
+typedef union {
+	unsigned all			: 8;	/* all of the bits together */
+	struct {
+		unsigned bit0		: 1;
+		unsigned nIEN		: 1;	/* device INTRQ to host */
+		unsigned SRST		: 1;	/* host soft reset bit */
+		unsigned bit3		: 1;	/* ATA-2 thingy */
+		unsigned reserved456	: 3;
+		unsigned HOB		: 1;	/* 48-bit address ordering */
+	} b;
+} control_t;
+
 #define ide_request_irq(irq,hand,flg,dev,id)	request_irq((irq),(hand),(f=
lg),(dev),(id))
 #define ide_free_irq(irq,dev_id)		free_irq((irq), (dev_id))
 #define ide_check_region(from,extent)		check_region((from), (extent))
 #define ide_request_region(from,extent,name)	request_region((from), (ext=
ent),
(name))
 #define ide_release_region(from,extent)		release_region((from), (extent)=
)
+
+#define T_CHAR          (0x0000)        /* char:  don't touch  */
+#define T_SHORT         (0x4000)        /* short: 12 -> 21     */
+#define T_INT           (0x8000)        /* int:   1234 -> 4321 */
+#define T_TEXT          (0xc000)        /* text:  12 -> 21     */
+
+#define T_MASK_TYPE     (0xc000)
+#define T_MASK_COUNT    (0x3fff)
+
+#define D_CHAR(cnt)     (T_CHAR  | (cnt))
+#define D_SHORT(cnt)    (T_SHORT | (cnt))
+#define D_INT(cnt)      (T_INT   | (cnt))
+#define D_TEXT(cnt)     (T_TEXT  | (cnt))
+
+static u_short driveid_types[] =3D {
+	D_SHORT(10),	/* config - vendor2 */
+	D_TEXT(20),	/* serial_no */
+	D_SHORT(3),	/* buf_type - ecc_bytes */
+	D_TEXT(48),	/* fw_rev - model */
+	D_CHAR(2),	/* max_multsect - vendor3 */
+	D_SHORT(1),	/* dword_io */
+	D_CHAR(2),	/* vendor4 - capability */
+	D_SHORT(1),	/* reserved50 */
+	D_CHAR(4),	/* vendor5 - tDMA */
+	D_SHORT(4),	/* field_valid - cur_sectors */
+	D_INT(1),	/* cur_capacity */
+	D_CHAR(2),	/* multsect - multsect_valid */
+	D_INT(1),	/* lba_capacity */
+	D_SHORT(194)	/* dma_1word - reservedyy */
+};
+
+#define num_driveid_types       (sizeof(driveid_types)/sizeof(*driveid_t=
ypes))
+
+static __inline__ void ide_fix_driveid(struct hd_driveid *id)
+{
+	u_char *p =3D (u_char *)id;
+	int i, j, cnt;
+	u_char t;
+
+	for (i =3D 0; i < num_driveid_types; i++) {
+		cnt =3D driveid_types[i] & T_MASK_COUNT;
+		switch (driveid_types[i] & T_MASK_TYPE) {
+		case T_CHAR:
+			p +=3D cnt;
+			break;
+		case T_SHORT:
+			for (j =3D 0; j < cnt; j++) {
+				t =3D p[0];
+				p[0] =3D p[1];
+				p[1] =3D t;
+				p +=3D 2;
+			}
+			break;
+		case T_INT:
+			for (j =3D 0; j < cnt; j++) {
+				t =3D p[0];
+				p[0] =3D p[3];
+				p[3] =3D t;
+				t =3D p[1];
+				p[1] =3D p[2];
+				p[2] =3D t;
+				p +=3D 4;
+			}
+			break;
+		case T_TEXT:
+			for (j =3D 0; j < cnt; j +=3D 2) {
+				t =3D p[0];
+				p[0] =3D p[1];
+				p[1] =3D t;
+				p +=3D 2;
+			}
+			break;
+		};
+	}
+}
+
+/*
+ * The following are not needed for the non-m68k ports
  */
+#define ide_ack_intr(hwif)		(1)
+#define ide_release_lock(lock)		do {} while (0)
+#define ide_get_lock(lock, hdlr, data)	do {} while (0)
 
 #endif /* __KERNEL__ */
 
diff -NaurwbBX /Develop/Kernel-Linux/dontdiff linux-2.4.21-pre1-pa14-alph=
a/include/asm-parisc/system.h
linux-2.4.21-pre1-pa14-beta/include/asm-parisc/system.h
--- linux-2.4.21-pre1-pa14-alpha/include/asm-parisc/system.h	2002-12-13
13:58:36.000000000 +0100
+++ linux-2.4.21-pre1-pa14-beta/include/asm-parisc/system.h	2002-12-15 15=
:34:01.000000000
+0100
@@ -66,8 +66,6 @@
 #define sti() __global_sti()
 #define save_flags(x) ((x)=3D__global_save_flags())
 #define restore_flags(x) __global_restore_flags(x)
-#define save_and_cli(x) do { save_flags(x); cli(); } while(0);
-#define save_and_sti(x) do { save_flags(x); sti(); } while(0);
 
 #else
 
@@ -75,8 +73,6 @@
 #define sti() __sti()
 #define save_flags(x) __save_flags(x)
 #define restore_flags(x) __restore_flags(x)
-#define save_and_cli(x) __save_and_cli(x)
-#define save_and_sti(x) __save_and_sti(x)
 
 #endif
 
diff -NaurwbBX /Develop/Kernel-Linux/dontdiff linux-2.4.21-pre1-pa14-alph=
a/include/asm-parisc/system_irqsave.h
linux-2.4.21-pre1-pa14-beta/include/asm-parisc/system_irqsave.h
--- linux-2.4.21-pre1-pa14-alpha/include/asm-parisc/system_irqsave.h	2002=
-12-12
16:12:02.000000000 +0100
+++ linux-2.4.21-pre1-pa14-beta/include/asm-parisc/system_irqsave.h	2002-=
12-15
15:34:01.000000000 +0100
@@ -7,21 +7,10 @@
 #define __cli()	__asm__ __volatile__("rsm %0,%%r0\n" : : "i" (PSW_I) :
"memory" )
 #define __sti()	__asm__ __volatile__("ssm %0,%%r0\n" : : "i" (PSW_I) :
"memory" )
 
-#define __save_and_cli(x)  do { __save_flags(x); __cli(); } while(0);
-#define __save_and_sti(x)  do { __save_flags(x); __sti(); } while(0);
-
-/* For spinlocks etc */
-#if 0
 #define local_irq_save(x) \
 	__asm__ __volatile__("rsm %1,%0" : "=3Dr" (x) :"i" (PSW_I) : "memory" )=

-#define local_irq_set(x) \
-#       "Warning local_irq_set(x) is not yet defined"
-#else
-#define local_irq_save(x)  __save_and_cli(x)
-#define local_irq_set(x)   __save_and_sti(x)
-#endif

From - Thu Nov 08 21:25:59 2018
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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.20-pa14 64bit crash on boot - A500-5X
Date: Mon, 16 Dec 2002 23:28:08 +0100
Organization: ESIEE
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	<20021213233540.503b16d3.varenet@esiee.fr>
	<20021215035359.GA18647@dsl2.external.hp.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:17129

On Sat, 14 Dec 2002 20:53:59 -0700
"Grant Grundler" <grundler@dsl2.external.hp.com> wrote:

> On Fri, Dec 13, 2002 at 11:35:40PM +0100, Thibaut VARENE wrote:
> > AOUT: 0x10143bd4 mod_timer+3c
> ...
> > AOUT: 0x10538b48 hp_diva_timer+0
> 
> Good News: I reproduced this and fixed it.
> But I don't know exactly what I did that fixed it. :^(
> (drawbacks of the shotgun approach).
> Fairly small patch is on ftp.parisc-linux.org/patches/diff-2.4.20-timer
> This isn't ready to commit until someone narrows it down to one thing.
> 
> Bad News: SMP kernel now hangs during SCSI device discover.
> I haven't tried CONFIG_SMP=n yet and I guess that would be a next step.
> Console output of the a500-44 boot with 2.4.20-pa14 + patch is on
> 	dsl2.e.h.c:~grundler/rp2470-2.4.20-symhang-01
With CONFIG_SMP=y, here is what happens upon boot:

SMP: Total 2 of 2 processors activated (2195.46 BogoMIPS noticed).
Waiting on wait_init_idle (map = 0x2)
All processors have done init_idle
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch support not available.
Performance monitoring counters enabled for Crescend

Some investigation provided the following (after TOC/SER PIM) CPU0:
IAOQ = 0x0000000010144f1c
Func: timer_bh, Off: 1a4, Addr: 0x10144f1c
    10144f10:	52 d3 0d f0 	ldd 6f8(r22),r19
    10144f14:	08 01 02 57 	copy r1,r23
    10144f18:	0e 60 10 94 	ldw 0(sr0,r19),r20
    10144f1c:	2b 61 20 00 	addil 3000,dp,%r1
    10144ff4:	e8 1f 1e 2d 	b,l 10144f10 <timer_bh+0x198>,r0

GR1 = 000000001047ae00
Func: __gp, Off: a000, Addr: 0x1047ae00

GR2 = 0000000010144fd8
Func: timer_bh, Off: 260, Addr: 0x10144fd8
    10144fd0:	eb df bc 81 	b,l 10103e18 <spin_lock>,%r2
    10144fd4:	08 13 02 5a 	copy r19,r26
    10144fd8:	08 0e 02 5b 	copy r14,dp
    10144fdc:	2b 65 00 00 	addil a000,dp,%r1

GR6 = 0000000010540b48
Func: hp_diva_timer, Off: 0, Addr: 0x10540b48

GR14 = 0000000010470e00
Func: __gp, Off: 0, Addr: 0x10470e00

GR18 = 0000000010540898
Func: serial_driver, Off: 0, Addr: 0x10540898

GR19 = 0000000010520e48
Func: tv1, Off: 0, Addr: 0x10520e48

GR26 = 00000000103e37c0
Func: timerlist_lock, Off: 0, Addr: 0x103e37c0

on a second try it went up to:

Performance monitoring counters enabled for Crescendo 550
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 o

Now the UP try:

went up to:

Performance monitoring counters enabled for Crescendo 550
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled

Investigation showed that:

IAOQ = 0x000000001021210c
Func: hp_diva_check, Off: ec, Addr: 0x1021210c
    10212100:	eb 94 be 61 	b,l 1013b038 <add_timer>,%r2
    10212104:	08 15 02 5a 	copy r21,r26
    10212108:	08 03 02 5b 	copy r3,dp
    1021210c:	53 c2 3e e1 	ldd -90(sp),rp

GR0 = 0000000000000000

GR1 = 000000001045df70
Func: timer_jiffies, Off: 0, Addr: 0x1045df70

GR2 = 0000000010212108
Func: hp_diva_check, Off: e8, Addr: 0x10212108
    10212100:	eb 94 be 61 	b,l 1013b038 <add_timer>,%r2
    10212104:	08 15 02 5a 	copy r21,r26
    10212108:	08 03 02 5b 	copy r3,dp
    1021210c:	53 c2 3e e1 	ldd -90(sp),rp

GR3 = 00000000103bd2a0
Func: __gp, Off: 0, Addr: 0x103bd2a0

GR6 = 0000000010472df8
Func: hp_diva_timer, Off: 0, Addr: 0x10472df8

GR18 = 0000000010472b48
Func: serial_driver, Off: 0, Addr: 0x10472b48

GR19 = 000000001045df68
Func: run_timer_list_running, Off: 0, Addr: 0x1045df68

GR20 = 0000000000001e11

GR21 = 000000001045df68
Func: run_timer_list_running, Off: 0, Addr: 0x1045df68

GR26 = 0000000010472df8
Func: hp_diva_timer, Off: 0, Addr: 0x10472df8

I think that the patch is quite wrong somehow...

Will investigate further tomorrow.


HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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From: grundler@dsl2.external.hp.com (Grant Grundler)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] quad tulip now not functional in 2.4.20
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On Sun, Dec 15, 2002 at 11:45:12PM -0700, Ed Schaller wrote:
> I have a B180 that I have been using as a firewall/router for some time
> now. Along with the built in tulip ethernet card, I also have a Adaptec
> quad ethernet card that is also tulip based. This has worked fine in
> 2.4.17-2.4.19 but no longer works in 2.4.20-pa13. Although I can
> ifconfig up the interfaces, no traffic goes through and mii-tool reports
> that the interfaces do not exist (except for the built in one).

I've looked a bit at the same problem on A500 with
a regular (single port) HP tulip card.

> In the following dmesg out takes for 2.4.20-pa13 and 2.4.19-32 (debian),
> it seems that the older kernel is finding the transceiver and
> successfully auto-negotiating the link while the newer is not.

yeah - same symptom that I saw.

> Any ideas how to solve this? Any help would be greatly appreciated.

I suspect it's a tulip driver bug.
I haven't had a chance to diff the 2.4.19 vs 2.4.20 tulip driver.
One idea might be to "forward port" the 2.4.19 drivers/net/tulip code
into 2.4.20.

thanks for the report,
grant

> Linux version 2.4.20-pa13 (root@landmine) (gcc version 3.0.4) #3 Tue Dec 10 01:35:34 MST 2002
> ...
> Linux Tulip driver version 0.9.15-pre12 (Aug 9, 2002)
> tulip0: no phy info, aborting mtable build
> tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
> eth0: Digital DS21143 Tulip rev 48 at 0xf0fff000, 00:60:B0:C4:5E:7B, IRQ 96.
> eth1: Digital DS21140 Tulip rev 34 at 0xf0efc000, 00:00:D1:1B:C8:90, IRQ 98.
> eth2: Digital DS21140 Tulip rev 34 at 0xf0efd000, 00:00:D1:1B:C8:B5, IRQ 99.
> eth3: Digital DS21140 Tulip rev 34 at 0xf0efe000, 00:00:D1:1B:C8:95, IRQ 96.
> eth4: Digital DS21140 Tulip rev 34 at 0xf0eff000, 00:00:D1:1B:70:33, IRQ 97.
> ...until ifconfig eth0-eth4
> eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.
> 
> Linux version 2.4.19-32 (root@j5k) (gcc version 3.0.4) #1 Fri Nov 22 23:27:00 MST 2002
> ...
> Linux Tulip driver version 0.9.15-pre11 (May 11, 2002)
> tulip0: no phy info, aborting mtable build
> tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
> eth0: Digital DS21143 Tulip rev 48 at 0xff00, 00:60:B0:C4:5E:7B, IRQ 96.
> tulip1:  EEPROM default media type Autosense.
> tulip1:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
> tulip1:  MII transceiver #1 config 3100 status 7849 advertising 01e1.
> eth1: Digital DS21140 Tulip rev 34 at 0xec00, 00:00:D1:1B:C8:90, IRQ 98.
> tulip2:  EEPROM default media type Autosense.
> tulip2:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
> tulip2:  MII transceiver #1 config 3100 status 7849 advertising 01e1.
> eth2: Digital DS21140 Tulip rev 34 at 0xed00, 00:00:D1:1B:C8:B5, IRQ 99.
> tulip3:  EEPROM default media type Autosense.
> tulip3:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
> tulip3:  MII transceiver #1 config 3100 status 7849 advertising 01e1.
> eth3: Digital DS21140 Tulip rev 34 at 0xee00, 00:00:D1:1B:C8:95, IRQ 96.
> tulip4:  EEPROM default media type Autosense.
> tulip4:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
> tulip4:  MII transceiver #1 config 3100 status 7849 advertising 01e1.
> eth4: Digital DS21140 Tulip rev 34 at 0xef00, 00:00:D1:1B:70:33, IRQ 97.
> ...until ifconfig eth0-eth4
> eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.
> eth1: Setting full-duplex based on MII#1 link partner capability of 45e1.
> eth2: Setting full-duplex based on MII#1 link partner capability of 45e1.
> eth3: Setting full-duplex based on MII#1 link partner capability of 41e1.
> eth4: Setting full-duplex based on MII#1 link partner capability of 41e1.
> 
> >>>------>
> 
> --
> 
> +-------------+-----------------------+---------------+
> | Ed Schaller | Dark Mist Networking  | psuedoshroom  |
> +-------------+-----------------------+---------------+




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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: Re: [parisc-linux] Is this system_irqsave diff is correct?
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On Sun, Dec 15, 2002 at 01:09:14PM +0000, Joel Soete wrote:
> is this  diff is right:
> -#define local_irq_restore(x) \
> -       __asm__ __volatile__("mtsm %0" : : "r" (x) : "memory" )
> +#define local_irq_restore(x) __restore_flags(x)

Yes - those seem the be the same.

grant


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Subject: Re: [parisc-linux] quad tulip now not functional in 2.4.20
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>
>I suspect it's a tulip driver bug.
>I haven't had a chance to diff the 2.4.19 vs 2.4.20 tulip driver.
>One idea might be to "forward port" the 2.4.19 drivers/net/tulip code
>into 2.4.20.
>
Just to avoid you loose time here is a diff:
diff -NaurX dontdiff linux-2.4.19-pa24/drivers/net/tulip/ChangeLog linux-=
2.4.20-pa14/drivers/net/tulip/ChangeLog
--- linux-2.4.19-pa24/drivers/net/tulip/ChangeLog	2002-08-03 02:39:44.000=
000000
+0200
+++ linux-2.4.20-pa14/drivers/net/tulip/ChangeLog	2002-11-18 09:09:41.000=
000000
+0100
@@ -1,3 +1,14 @@
+2002-09-18  Ryan Bradetich  <rbradetich@uswest.net>
+
+	tulip hppa support:
+	* eeprom.c (tulip_build_fake_mediatable): new function
+	(tulip_parse_eeprom): call it, when no media table
+	* interrupt.c (phy_interrupt): new function
+	(tulip_interrupt): call it, before checking for no-irq-work
+	* tulip.c: add HAS_PHY_IRQ chip feature flag.
+	add csr12_shadow to tulip_private struct, only for hppa currently.
+	* tulip_core (tulip_init_one): support hppa wonky eeproms
+
 2002-05-11  Juan Quintela  <quintela@mandrakesoft.com>
 
 	* 21142.c (t21142_lnk_change): Revert earlier patch
diff -NaurX dontdiff linux-2.4.19-pa24/drivers/net/tulip/eeprom.c linux-2=
.4.20-pa14/drivers/net/tulip/eeprom.c
--- linux-2.4.19-pa24/drivers/net/tulip/eeprom.c	2002-11-28 12:41:36.0000=
00000
+0100
+++ linux-2.4.20-pa14/drivers/net/tulip/eeprom.c	2002-11-18 09:09:41.0000=
00000
+0100
@@ -190,7 +190,7 @@
 	}
 subsequent_board:
 
-	if (ee_data[27] =3D=3D 0) {		/* No valid media table. */
+	if (ee_data[27] =3D=3D 0 || ee_data[ee_data[27]] =3D=3D 0) {  /* No val=
id media
table. */
 		tulip_build_fake_mediatable(tp);
 	} else if (tp->chip_id =3D=3D DC21041) {
 		unsigned char *p =3D (void *)ee_data + ee_data[27 + controller_index*3=
];
diff -NaurX dontdiff linux-2.4.19-pa24/drivers/net/tulip/tulip.h linux-2.=
4.20-pa14/drivers/net/tulip/tulip.h
--- linux-2.4.19-pa24/drivers/net/tulip/tulip.h	2002-11-28 12:41:36.00000=
0000
+0100
+++ linux-2.4.20-pa14/drivers/net/tulip/tulip.h	2002-11-18 09:09:41.00000=
0000
+0100
@@ -63,7 +63,7 @@
 	HAS_8023X		=3D 0x0400,
 	COMET_MAC_ADDR		=3D 0x0800,
 	HAS_PCI_MWI		=3D 0x1000,
-        HAS_PHY_IRQ             =3D 0x2000,
+	HAS_PHY_IRQ		=3D 0x2000,
 };
 
 
@@ -85,6 +85,7 @@
 	COMPEX9881,
 	I21145,
 	DM910X,
+	CONEXANT,
 };
 
 
diff -NaurX dontdiff linux-2.4.19-pa24/drivers/net/tulip/tulip_core.c lin=
ux-2.4.20-pa14/drivers/net/tulip/tulip_core.c
--- linux-2.4.19-pa24/drivers/net/tulip/tulip_core.c	2002-11-28 12:41:36.=
000000000
+0100
+++ linux-2.4.20-pa14/drivers/net/tulip/tulip_core.c	2002-11-18 09:09:41.=
000000000
+0100
@@ -15,8 +15,8 @@
 */
 
 #define DRV_NAME	"tulip"
-#define DRV_VERSION	"0.9.15-pre11"
-#define DRV_RELDATE	"May 11, 2002"
+#define DRV_VERSION	"0.9.15-pre12"
+#define DRV_RELDATE	"Aug 9, 2002"
 
 #include <linux/config.h>
 #include <linux/module.h>
@@ -191,6 +191,10 @@
   { "Davicom DM9102/DM9102A", 128, 0x0001ebef,
 	HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | HAS_ACPI,
 	tulip_timer },
+
+  /* CONEXANT */
+  {	"Conexant LANfinity", 256, 0x0001ebef,
+	HAS_MII, tulip_timer },
 };
 
 
@@ -214,6 +218,7 @@
 	{ 0x13D1, 0xAB08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
 	{ 0x104A, 0x0981, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
 	{ 0x104A, 0x2774, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+	{ 0x1259, 0xa120, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
 	{ 0x11F6, 0x9881, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMPEX9881 },
 	{ 0x8086, 0x0039, PCI_ANY_ID, PCI_ANY_ID, 0, 0, I21145 },
 	{ 0x1282, 0x9100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DM910X },
@@ -221,6 +226,10 @@
 	{ 0x1113, 0x1216, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
 	{ 0x1113, 0x1217, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MX98715 },
 	{ 0x1113, 0x9511, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+	{ 0x1186, 0x1561, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+	{ 0x1626, 0x8410, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+	{ 0x1737, 0xAB09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
+	{ 0x14f1, 0x1803, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CONEXANT },
 	{ } /* terminate list */
 };
 MODULE_DEVICE_TABLE(pci, tulip_pci_tbl);
@@ -453,7 +462,7 @@
 		tp->csr6 =3D 0x01a80200;
 		outl(0x0f370000 | inw(ioaddr + 0x80), ioaddr + 0x80);
 		outl(0x11000 | inw(ioaddr + 0xa0), ioaddr + 0xa0);
-	} else if (tp->chip_id =3D=3D COMET) {
+	} else if (tp->chip_id =3D=3D COMET || tp->chip_id =3D=3D CONEXANT) {
 		/* Enable automatic Tx underrun recovery. */
 		outl(inl(ioaddr + 0x88) | 1, ioaddr + 0x88);
 		dev->if_port =3D tp->mii_cnt ? 11 : 0;
@@ -1474,7 +1483,6 @@
 	tp->timer.function =3D tulip_tbl[tp->chip_id].media_timer;
 
 	dev->base_addr =3D ioaddr;
-	dev->irq =3D irq;
 
 #ifdef CONFIG_TULIP_MWI
 	if (!force_csr0 && (tp->flags & HAS_PCI_MWI))
@@ -1548,7 +1556,13 @@
 		for (i =3D 0; i < 8; i ++)
 			if (ee_data[i] !=3D ee_data[16+i])
 				sa_offset =3D 20;
-		if (ee_data[0] =3D=3D 0xff  &&  ee_data[1] =3D=3D 0xff &&  ee_data[2] =
=3D=3D 0) {
+		if (chip_idx =3D=3D CONEXANT) {
+		    /* Check that the tuple type and length is correct. */
+			if (ee_data[0x198] =3D=3D 0x04  &&  ee_data[0x199] =3D=3D 6)
+			    sa_offset =3D 0x19A;
+		}
+		if (ee_data[0] =3D=3D 0xff && ee_data[1] =3D=3D 0xff &&
+		    ee_data[2] =3D=3D 0) {
 			sa_offset =3D 2;		/* Grrr, damn Matrox boards. */
 			multiport_cnt =3D 4;
 		}
@@ -1641,6 +1655,7 @@
 	for (i =3D 0; i < 6; i++)
 		last_phys_addr[i] =3D dev->dev_addr[i];http://webmail.tiscali.be/mail/=
MessageReplyAll?sid=3DDBE10C1646FA3872D205B9CC28640282AD467BC4&userid=3Dj=
soe0708@tiscali.be&seq=3DC&auth=3D01RVNMIUMKQMZQKW&srcfolder=3DINBOX&uid=3D=
3182&style=3Dfrans&abcompose=3D0
:: options avanc=E9es
 	last_irq =3D irq;
+	dev->irq =3D irq;
 
 	/* The lower four bits are the media type. */
 	if (board_idx >=3D 0  &&  board_idx < MAX_UNITS) {


(I have well a second interface on my b2k but never use it. I will try an=
d
try to revert this diff.)

hph,
    Joel

*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be




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Subject: [parisc-linux] Dropping ide controler in 'Native' mode?
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>
>On Mon, 2002-12-16 at 17:06, jsoe0708@tiscali.be wrote:
>> Hi Alan,
>> 
>> Worried about ext3 pb, I try to merge parisc kernel 2.4.20-pa14 with
2.4.21-pre1.
>> This merge seems to works fine on a b180l+ (without pci devices).
>> But still boot twice (??) and crash on a b2k with an ide cdrom.
>
>I've sent the PCI fixup patch to linux-kernel. Depending upon how the
>PA-RISC system interfaces to the IDE controller you may also need
>platform specific fixups or to drop the chip into Native mode.
>
Can somebody tell me if it is possible (if yes how)?

Thanks in advance,
    Joel


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Subject: Re: [parisc-linux] Re: YA pb with PCI IDE (my merge 2.4.21-pre1)
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Hi Willy,
>
>You mean the "IDE but no disks" patch:
>http://www.uwsg.iu.edu/hypermail/linux/kernel/0212.2/0105.html ?

I apply it (by hand) and it works:
"...
Uniform Multi-Platform E-IDE driver Revision: 7.00beta-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=3D=
xx
NS87415: IDE controller at PCI slot 00:0e.0
NS87415: chipset revision 3
NS87415: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0x0900-0x0907, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0x0908-0x090f, BIOS settings: hdc:pio, hdd:pio
hda: LTN485S, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 103
hda: ATAPI 48X CD-ROM drive, 120kB Cache
Uniform CD-ROM driver Revision: 3.12
...

palx2000:~# uname -a
Linux palx2000 2.4.21-pre1-pa14 #2 Tue Dec 17 08:44:14 CET 2002 parisc un=
known
unknown GNU/Linux"

Thanks all,
    Joel



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Subject: Re: [parisc-linux] quad tulip now not functional in 2.4.20
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>
>I've looked a bit at the same problem on A500 with
>a regular (single port) HP tulip card.
>
>> In the following dmesg out takes for 2.4.20-pa13 and 2.4.19-32 (debian=
),
>> it seems that the older kernel is finding the transceiver and
>> successfully auto-negotiating the link while the newer is not.
>
>yeah - same symptom that I saw.
>
>> Any ideas how to solve this? Any help would be greatly appreciated.
>
>I suspect it's a tulip driver bug.
>I haven't had a chance to diff the 2.4.19 vs 2.4.20 tulip driver.
>One idea might be to "forward port" the 2.4.19 drivers/net/tulip code
>into 2.4.20.
>
Same on B2k with add card.
Hmm I notice strange detail:
2.4.19 : lan heart bit on (even if interface not configure)
2.4.20 (& 21-pre1) : no lan heart bit on (interface configured or not)

I will try to revert tulip driver and advise you.

Cheer,
    Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:17136

Hello Grant,

>>
>>I've looked a bit at the same problem on A500 with
>>a regular (single port) HP tulip card.
>>
>>> In the following dmesg out takes for 2.4.20-pa13 and 2.4.19-32 (debia=
n),
>>> it seems that the older kernel is finding the transceiver and
>>> successfully auto-negotiating the link while the newer is not.
>>
>>yeah - same symptom that I saw.
>>
>>> Any ideas how to solve this? Any help would be greatly appreciated.
>>
>>I suspect it's a tulip driver bug.
>>I haven't had a chance to diff the 2.4.19 vs 2.4.20 tulip driver.
>>One idea might be to "forward port" the 2.4.19 drivers/net/tulip code
>>into 2.4.20.
>>
>Same on B2k with add card.
>Hmm I notice strange detail:
>2.4.19 : lan heart bit on (even if interface not configure)
>2.4.20 (& 21-pre1) : no lan heart bit on (interface configured or not)
>
>I will try to revert tulip driver and advise you.
>
Well I find some minutes to do this reverse and it works.
Still have to find the bug ?

Joel


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Subject: Re: [parisc-linux] quad tulip now not functional in 2.4.20
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On Tue, Dec 17, 2002 at 04:14:10PM +0100, jsoe0708@tiscali.be wrote:
> >I will try to revert tulip driver and advise you.
> Well I find some minutes to do this reverse and it works.
> Still have to find the bug ?

Unfortunately yes.
But since the diff is small, it's alot easier.

I'm most suspicious about the added checks for length field in eeprom.
But I'll review the diff again and tinker with it today or tomorrow.
I added that thinking that code only gets executed when there is no
phy table (eg built-in). But the add-on cards do have a phy table.

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:17138

Hi Grant,
>
>On Tue, Dec 17, 2002 at 04:14:10PM +0100, jsoe0708@tiscali.be wrote:
>> >I will try to revert tulip driver and advise you.
>> Well I find some minutes to do this reverse and it works.
>> Still have to find the bug ?
>
>Unfortunately yes.
>But since the diff is small, it's alot easier.
>
>I'm most suspicious about the added checks for length field in eeprom.
>But I'll review the diff again and tinker with it today or tomorrow.
>I added that thinking that code only gets executed when there is no
>phy table (eg built-in). But the add-on cards do have a phy table.
>
(well it seems I do mistake when sent following info)
[also because diff is small]
In eeprom.c I also suspect:
line 193: if (ee_data[27] =3D=3D 0 || ee_data[ee_data[27]] =3D=3D 0) {

which I only reverse into:
if (ee_data[27] =3D=3D 0) {

and it works. Unforunately I do not have enough doc to actulay fix the pb=
.
May be Ryan could still help us?

Joel

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Xref: news.gmane.org gmane.linux.ports.parisc:17139

Hey Everyone,

What's the go with use of the parisc logo on web pages?  Can I use it?

Thanks,

Pete





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Subject: [parisc-linux] 2.5 serial-mux patch?
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Hi Ryan,

Regarding your patch:
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2002-November/03=
1910.html

I would like to ask you some additional: is it also applicable for serial=
-mux
pci card (as Prod J3592A) or scsi-mux (as the 8 port of Central Data)?

Thanks in advance,
    Joel

PS: Do you think it could be easily backport in 2.4 (if not yet done)?

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Hi Alan! Great things happened!

I could sweare, that a few weeks ago nothing worked, neither with the nat=
ive=20
IDE drivers nor with PDC20268 options. (That kernel was 2.4.19-pa14). Now=
 it=20
only doesn't work with the special IDE options for this card. Is there a=20
roadmap to fix that prolem? ;-)

Thanks to all who helped me!
Joerg

hp-c240:~# modprobe -k ide-mod
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=3D=
xx
PDC20268: IDE controller on PCI bus 00 dev 08
PDC20268: chipset revision 2
PDC20268: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xfd00-0xfd07, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0xfd08-0xfd0f, BIOS settings: hdc:pio, hdd:pio
hp-c240:~# modprobe -k ide-probe-mod
hdd: IBM-DTTA-351680, ATA DISK drive
ide1 at 0xfb00-0xfb07,0xfc02 on irq 97
hp-c240:~# modprobe -k ide-disk
hdd: 33022080 sectors (16907 MB) w/462KiB Cache, CHS=3D32760/16/63
 /dev/ide/host0/bus1/target1/lun0: [PTBL] [2055/255/63] p1
hp-c240:~# mount /dev/ide/host0/bus1/target1/lun0/part1 /mnt/tmp
(works with and without devfs)

On Monday 16 December 2002 16:03, you wrote:
> In legacy mode the PCI BAR registers are ignored, the I/O decode is at
> 0x170 etc and interrupts are flagged by the ISA legacy not by the PCI
> bus.
> That isnt going to work very well on your average PA-RISC box. Most
> probably you want to force the chip into native mode on pa-risc
> hardware.



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This is a multipart MIME message.

--==_Exmh_-17170343740
Content-Type: text/plain; charset=us-ascii

It seems that going from 2.4 to 2.5 there was an over zealous removal of the 
check signals return path.  The problem is that if a user application takes a 
page fault, that can result in a signal being posted (specifically SEGV for 
illegal memory access).  If we never check the signals, the instruction is 
retried and re-faults ad infinitum (well actually, it seems to terminate with 
an unaligned instruction trap in this case after a few hundred faults).

The attached path makes signal posting on page fault work again

James


--==_Exmh_-17170343740
Content-Type: text/plain ; name="tmp.diff"; charset=us-ascii
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===== entry.S 1.8 vs edited =====
--- 1.8/arch/parisc/kernel/entry.S	Sun Nov 24 17:36:53 2002
+++ edited/entry.S	Mon Dec 16 22:09:59 2002
@@ -944,11 +944,11 @@
 	ldo		-16(%r30),%r29	/* Reference param save area */
 #endif
 
-	ldil		L%intr_restore, %r2
+	ldil		L%intr_check_sig, %r2
 	copy		%r25, %r16	/* save pt_regs */
 
 	b		handle_interruption
-	ldo		R%intr_restore(%r2), %r2
+	ldo		R%intr_check_sig(%r2), %r2
 
 
 	/*

--==_Exmh_-17170343740--




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In reference to a message from James Bottomley, dated Dec 18:
> It seems that going from 2.4 to 2.5 there was an over zealous removal of the 
> check signals return path.  The problem is that if a user application takes a 
> page fault, that can result in a signal being posted (specifically SEGV for 
> illegal memory access).  If we never check the signals, the instruction is 
> retried and re-faults ad infinitum (well actually, it seems to terminate with 
> an unaligned instruction trap in this case after a few hundred faults).

thanks James. I've commited this to our 2.5 tree. We had fixed this in
2.4 a couple of weeks ago but I forgot to commit this to 2.5 too.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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I find when booting 2.5.51 up on a C380 that applications seem to take random 
page faults and die.  It seems that the more heavily an application does file 
accesses, the more likely it is to suffer from this.

In debugging the problems, so far it has always been stack manipulation 
instructions in the user level code causing this.  Further, on adding a 
register dump to the page fault debugging code, the reason is that the stack 
pointer is way out of where it should be for a user process (around 0x4f000), 
so I surmise it got clobbered on a rare return path from kernel to user.

Does anyone have any additional information and pointers?  I'm trying to audit 
entry.S to see if there is a little used path that can clobber the stack, but 
my parisc assembly isn't the best...

James




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On Tue, Dec 17, 2002 at 08:12:03AM +0100, jsoe0708@tiscali.be wrote:
> Just to avoid you loose time here is a diff:
...
> -	if (ee_data[27] == 0) {		/* No valid media table. */
> +	if (ee_data[27] == 0 || ee_data[ee_data[27]] == 0) {  /* No valid media
> table. */

Like I suspected, backing out this change made add-on boards work again.
I've reverted that change in 2.4.20-pa15 along with a traps.c change.
Please apply by hand and try the 4-port again.

thanks,
grant


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> In debugging the problems, so far it has always been stack manipulation 
> instructions in the user level code causing this.  Further, on adding a 

ditto.... there's a note about this in the todo....

> register dump to the page fault debugging code, the reason is that the stack 
> pointer is way out of where it should be for a user process (around 0x4f000), 
> so I surmise it got clobbered on a rare return path from kernel to user.

> Does anyone have any additional information and pointers?  I'm trying to audit 
> entry.S to see if there is a little used path that can clobber the stack, but 
> my parisc assembly isn't the best...
> 

that's what i thought too, so i went through entry.S as well to see what
i can find. haven't found anything yet :(

i was able to get the kernel to die simply by having a program do
gettimeofday() in a loop with 2.5...  i would guess it's a case where we
have to do some work on the syscall return path (resched, softirq, etc)
that's clobbering things, but i don't know what it is.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Wed, Dec 18, 2002 at 07:30:40AM +0100, jsoe0708@tiscali.be wrote:
> In eeprom.c I also suspect:
> line 193: if (ee_data[27] == 0 || ee_data[ee_data[27]] == 0) {
...
> and it works. Unforunately I do not have enough doc to actulay fix the pb.

I don't either. I made that change after reviewing the code and just
botched it. My understanding is jgarzik is rewriting tulip driver anyway.

grant


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On Wed, Dec 18, 2002 at 09:16:44PM +1100, Peter Lavender wrote:
> What's the go with use of the parisc logo on web pages?  Can I use it?

I'd think you'd need written permission from HP.
Can you send me off-list a brief (50 words or less) description of how you
want to use it that I can forward to a marketing/business person?

I'm amused that we've not (yet) placed it anywhere on the
parisc-linux.org web site. :^)

grant


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> Like I suspected, backing out this change made add-on boards work again.
> I've reverted that change in 2.4.20-pa15 along with a traps.c change.
> Please apply by hand and try the 4-port again.

Seems to work fine. Thanks for all the help!

>>>------>

--

+-------------+-----------------------+---------------+
| Ed Schaller | Dark Mist Networking  | psuedoshroom  |
+-------------+-----------------------+---------------+

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From: Joerg Steindlberger <j@steindlberger.de>
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Subject: Re: [parisc-linux] still problems with PCI IDE controller
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Hi all!

I still do have problems with using my IDE controller with parisc-linux. =
I=20
get the following message onto my console when generation large traffic t=
o /=20
from my IDE disks:
hp-c240:~# dd if=3D/dev/ide/host0/bus0/target0/lun0/disc of=3D/dev/null
Dino f2000000: IRQ base 96, stuck IRQ lines? 0x2
Dino f2000000: IRQ base 96, stuck IRQ lines? 0x2
Dino f2000000: IRQ base 96, stuck IRQ lines? 0x2
[...]
The device using the IRQ 96 is the internal ethernet controller (not the =
IDE=20
controller!):
hp-c240:~# cat /proc/interrupts | grep 96
 96:      17424            Dino  eth0

Seems that there is still nobody else who tried to use cheap IDE disks wi=
th a=20
parisc machine :-(

For those who are interrested anyway: The reason that causes the kernel c=
rash=20
is the multimode option. You can either select it for native IDE support=20
(CONFIG_IDEDISK_MULTI_MODE=3Dy) or it is automatically selected with the=20
special drivers for i.e. Promise controllers.

Regards
Joerg

> hp-c240:~# modprobe -k ide-mod
> Uniform Multi-Platform E-IDE driver Revision: 6.31
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebu=
s=3Dxx
> PDC20268: IDE controller on PCI bus 00 dev 08
> PDC20268: chipset revision 2
> PDC20268: not 100% native mode: will probe irqs later
>     ide0: BM-DMA at 0xfd00-0xfd07, BIOS settings: hda:pio, hdb:pio
>     ide1: BM-DMA at 0xfd08-0xfd0f, BIOS settings: hdc:pio, hdd:pio
> hp-c240:~# modprobe -k ide-probe-mod
> hdd: IBM-DTTA-351680, ATA DISK drive
> ide1 at 0xfb00-0xfb07,0xfc02 on irq 97
> hp-c240:~# modprobe -k ide-disk
> hdd: 33022080 sectors (16907 MB) w/462KiB Cache, CHS=3D32760/16/63
>  /dev/ide/host0/bus1/target1/lun0: [PTBL] [2055/255/63] p1
> hp-c240:~# mount /dev/ide/host0/bus1/target1/lun0/part1 /mnt/tmp
> (works with and without devfs)


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On Wed, Dec 18, 2002 at 10:08:34PM +0100, Joerg Steindlberger wrote:
> Dino f2000000: IRQ base 96, stuck IRQ lines? 0x2

The loop that reads and deMuxes the IRQ lines for Dino exits after
a few times in order to avoid monopolizing the CPU.
What that msg tells me is we are in the interrupt handler long
enough that the next eth0 interrupt is outstanding again.
I would guess this is because IDE is handling IO on the interrupt
stack (reading block data via PIO).

IDE in PIO Mode (ie not using DMA) does not play well with the
rest of the system.

You can usually ignore this msg.


> Seems that there is still nobody else who tried to use cheap IDE disks with a 
> parisc machine :-(

Nope. IDE is EEEeevil ;^)

grant


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Hi Grant

On Wednesday 18 December 2002 22:24, Grant Grundler wrote:
> IDE in PIO Mode (ie not using DMA) does not play well with the
> rest of the system.
Okay. I now set hdparm -c 1 /dev/... and hdparm -d 1 /dev/... -- before=20
starting the softwareRAID. The RAID1 is syncing this moment with about 2=20
Mbyte/s. I think I'll stop it now and mount the shorter 80pin cable again=
 and=20
play with some speed settings. My earlier problem with DMA was, that the=20
kernal crashed when setting the CONFIG_IDEDMA_AUTO=3Dy.
> Nope. IDE is EEEeevil ;^)
Yes, I know. But what would You pay for two 80 GB disks?

Regards
Joerg


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Hi David,

While trying to get the tun/tap driver to work on parisc-linux, I found
that the driver does not deliver correctly aligned buffers to the
underlying layers. The attached patch fixes the problem. AIUI the +2 is
there in some net drivers to deal with the 4n+2 length of MAC headers.
Since you don't have a MAC header here the +2 is not required. In fact,
it will cause the buffers that are delivered to the checksuming routines
to be unaligned, which will either not work on some archs, or have
performance implications on others.

This was tested on 2.4.19(-pa22).

--- drivers/net/tun.c.orig	2002-12-18 15:02:45.000000000 -0800
+++ drivers/net/tun.c	2002-12-18 15:03:30.000000000 -0800
@@ -194,12 +194,11 @@
 		memcpy_fromiovec((void *)&pi, iv, sizeof(pi));
 	}
  
-	if (!(skb = alloc_skb(len + 2, GFP_KERNEL))) {
+	if (!(skb = alloc_skb(len, GFP_KERNEL))) {
 		tun->stats.rx_dropped++;
 		return -ENOMEM;
 	}
 
-	skb_reserve(skb, 2);
 	memcpy_fromiovec(skb_put(skb, len), iv, len);
 
 	skb->dev = &tun->dev;


randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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On Wed, Dec 18, 2002 at 11:18:14PM +0100, Joerg Steindlberger wrote:
...
> Okay. I now set hdparm -c 1 /dev/... and hdparm -d 1 /dev/... -- before 
> starting the softwareRAID. The RAID1 is syncing this moment with about 2 
> Mbyte/s.

Excellent!
TBH, I wasn't expecting that to work.

> I think I'll stop it now and mount the shorter 80pin cable again and 
> play with some speed settings. My earlier problem with DMA was, that the 
> kernal crashed when setting the CONFIG_IDEDMA_AUTO=y.

My guess is the IDE code is poking at registers that don't exist.
Did you post console output from the crash?
I'm just curious if it was an HPMC or kernel trap (data page fault).

> > Nope. IDE is EEEeevil ;^)
> Yes, I know. But what would You pay for two 80 GB disks?

The pro/cons of both are well documented.
I'm not going to re-hash them here.  :^)

grant

ps. To answer your question: Nothing. I collect 20 or so 9GB 10K rpm SCSI
drives from the scrap area and setup raid0/1 as needed. ;^)


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Xref: news.gmane.org gmane.linux.ports.parisc:17155

On Wed, 2002-12-18 at 22:18, Joerg Steindlberger wrote:
> Okay. I now set hdparm -c 1 /dev/... and hdparm -d 1 /dev/... -- before 
> starting the softwareRAID. The RAID1 is syncing this moment with about 2 
> Mbyte/s. I think I'll stop it now and mount the shorter 80pin cable again and 
> play with some speed settings. My earlier problem with DMA was, that the 
> kernal crashed when setting the CONFIG_IDEDMA_AUTO=y.
> > Nope. IDE is EEEeevil ;^)
> Yes, I know. But what would You pay for two 80 GB disks?

To be fair PIO IDE is evil but UDMA is pretty nice. The big thing
lacking which is slowly coming is TCQ. Given TCQ and SATA hotswap (which
we dont handle at all yet) SCSI is I think rather doomed on the low end.

Alan



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Xref: news.gmane.org gmane.linux.ports.parisc:17156

Hi

I'm installing a dual-boot rp2430 system for one of our developers this weekend. Are there any parisc-linux issues I need to be aware of with regards to the crippled firmware e.g. known installation problems or gotchas?

Also, if we do a firmware upgrade to rp2470 in two or three months time will it require a complete rebuild or reinstallation of the linux OE to support the unlocked hardware?

Regards,

Gavin 



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On Thu, Dec 19, 2002 at 01:51:18PM +1300, Gavin Hubbard wrote:
> Hi
> 
> I'm installing a dual-boot rp2430 system for one of our developers
> this weekend. Are there any parisc-linux issues I need to be aware of
> with regards to the crippled firmware e.g. known installation problems
> or gotchas?

Nope. You will want to upgrade the kernel ASAP though.
Get the latest 2.4.19 kernel you can find.

> Also, if we do a firmware upgrade to rp2470 in two or three months time
> will it require a complete rebuild or reinstallation of the linux OE to
> support the unlocked hardware?

We don't have any rp2430's here to test such an upgrade.
But I can't imagine any difference besides the additional (faster?) CPU
(and more memory) getting recogized. Should your root disk get renamed,
it's possible to recovery from that pretty easily - I've done it
more than a few times.

grant


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On Thu, Dec 19, 2002 at 01:51:18PM +1300, Gavin Hubbard wrote:
> Are there any parisc-linux issues I need to be aware of...

I forgot to mention: HPUX and Linux must have seperate boot disks.
And read the boot/install HOW-TO that's referenced on esiee's website.
(as usual, www.parisc-linux.org has the links on the front page)

grant


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> On Thu, Dec 19, 2002 at 01:51:18PM +1300, Gavin Hubbard wrote:
> > Hi
> > 
> > I'm installing a dual-boot rp2430 system for one of our developers
> > this weekend. Are there any parisc-linux issues I need to be aware of
> > with regards to the crippled firmware e.g. known installation problems
> > or gotchas?
> 
> Nope. You will want to upgrade the kernel ASAP though.
> Get the latest 2.4.19 kernel you can find.
> 
> > Also, if we do a firmware upgrade to rp2470 in two or three months time
> > will it require a complete rebuild or reinstallation of the linux OE to
> > support the unlocked hardware?
> 
> We don't have any rp2430's here to test such an upgrade.
> But I can't imagine any difference besides the additional (faster?) CPU
> (and more memory) getting recogized. Should your root disk get renamed,
> it's possible to recovery from that pretty easily - I've done it
> more than a few times.

Thanks Grant

The other difference is the PCI controller support - the rp2430 has two working PCI slots and two disabled slots which are enabled by the upgrade.

Since I don't actually know how the device disabling is done in hardware, I'm not convinced that parisc-linux will come up smoothly after I install the upgrade (I'm not worried about HP-UX - it will be fine). Can anyone shed light on this?

Regards,

Gavin



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Xref: news.gmane.org gmane.linux.ports.parisc:17160

Joel,

Just a heads up ... I will not even have a chance to look at this for
a week or two.

Thanks,

- Ryan

On Tue, 2002-12-17 at 23:30, jsoe0708@tiscali.be wrote:
> Hi Grant,
> >
> >On Tue, Dec 17, 2002 at 04:14:10PM +0100, jsoe0708@tiscali.be wrote:
> >> >I will try to revert tulip driver and advise you.
> >> Well I find some minutes to do this reverse and it works.
> >> Still have to find the bug ?
> >
> >Unfortunately yes.
> >But since the diff is small, it's alot easier.
> >
> >I'm most suspicious about the added checks for length field in eeprom.
> >But I'll review the diff again and tinker with it today or tomorrow.
> >I added that thinking that code only gets executed when there is no
> >phy table (eg built-in). But the add-on cards do have a phy table.
> >
> (well it seems I do mistake when sent following info)
> [also because diff is small]
> In eeprom.c I also suspect:
> line 193: if (ee_data[27] == 0 || ee_data[ee_data[27]] == 0) {
> 
> which I only reverse into:
> if (ee_data[27] == 0) {
> 
> and it works. Unforunately I do not have enough doc to actulay fix the pb.
> May be Ryan could still help us?
> 
> Joel
> 
> ********************************************************************************
> Controlez mieux votre consommation Internet...surfez Tiscali Complete...http://tiscali.complete.be
> 
> 
> 
> 




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Subject: Re: [parisc-linux] quad tulip now not functional in 2.4.20
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Xref: news.gmane.org gmane.linux.ports.parisc:17161

Hi Grant,

>
>On Tue, Dec 17, 2002 at 08:12:03AM +0100, jsoe0708@tiscali.be wrote:
>> Just to avoid you loose time here is a diff:
>...
>> -	if (ee_data[27] =3D=3D 0) {		/* No valid media table. */
>> +	if (ee_data[27] =3D=3D 0 || ee_data[ee_data[27]] =3D=3D 0) {  /* No =
valid media
>> table. */
>
>Like I suspected, backing out this change made add-on boards work again.=

>I've reverted that change in 2.4.20-pa15 along with a traps.c change.
>Please apply by hand and try the 4-port again.
>
Sorry, I was too tired yesterday evening and have not time today :-(.

But I see that Ed successfully tested. Great (I will also test it, ... ne=
xt
year :))

Thanks for all and let me wish you and your families a Merry Christmas an=
d
a Happy New Year,
    Joel



*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be





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Subject: [parisc-linux] 2.4.20-paxx Config problem?
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Xref: news.gmane.org gmane.linux.ports.parisc:17162

Hi all,

Let me first wish you and your families a Merry Christmas and a Happy New=

Year.
Also thanks you all for relevant help.

I need again help because I used a .config file of my own and I obtain a
kernel 2.4.20-paxx operational on my b2k. 
I also try to test the one suggested in arch/parisc/debian-configs/32. 
But this one make hung the kernel at "search devices..." step and the gre=
en
led on the ide cdrom stay light.

Here is the diff between mine and the suggested:
--- config-2.4.20-pa14	2002-12-19 17:36:14.000000000 +0100
+++ 32	2002-12-18 14:27:04.000000000 +0100
@@ -101,32 +101,33 @@
 #
 CONFIG_MD=3Dy
 CONFIG_BLK_DEV_MD=3Dy
-# CONFIG_MD_LINEAR is not set
-# CONFIG_MD_RAID0 is not set
+CONFIG_MD_LINEAR=3Dy
+CONFIG_MD_RAID0=3Dy
 CONFIG_MD_RAID1=3Dy
-# CONFIG_MD_RAID5 is not set
+CONFIG_MD_RAID5=3Dy
 # CONFIG_MD_MULTIPATH is not set
-CONFIG_BLK_DEV_LVM=3Dy
+# CONFIG_BLK_DEV_LVM is not set
 
 #
 # Networking options
 #
 CONFIG_PACKET=3Dy
-# CONFIG_PACKET_MMAP is not set
-# CONFIG_NETLINK_DEV is not set
+CONFIG_PACKET_MMAP=3Dy
+CONFIG_NETLINK_DEV=3Dy
 CONFIG_NETFILTER=3Dy
 CONFIG_NETFILTER_DEBUG=3Dy
 CONFIG_FILTER=3Dy
 CONFIG_UNIX=3Dy
 CONFIG_INET=3Dy
-# CONFIG_IP_MULTICAST is not set
+CONFIG_IP_MULTICAST=3Dy
 # CONFIG_IP_ADVANCED_ROUTER is not set
 CONFIG_IP_PNP=3Dy
 # CONFIG_IP_PNP_DHCP is not set
-# CONFIG_IP_PNP_BOOTP is not set
+CONFIG_IP_PNP_BOOTP=3Dy
 # CONFIG_IP_PNP_RARP is not set
 # CONFIG_NET_IPIP is not set
 # CONFIG_NET_IPGRE is not set
+# CONFIG_IP_MROUTE is not set
 # CONFIG_ARPD is not set
 # CONFIG_INET_ECN is not set
 # CONFIG_SYN_COOKIES is not set
@@ -147,7 +148,7 @@
 CONFIG_IP_NF_MATCH_TOS=3Dm
 # CONFIG_IP_NF_MATCH_ECN is not set
 # CONFIG_IP_NF_MATCH_DSCP is not set
-# CONFIG_IP_NF_MATCH_AH_ESP is not set
+CONFIG_IP_NF_MATCH_AH_ESP=3Dm
 # CONFIG_IP_NF_MATCH_LENGTH is not set
 # CONFIG_IP_NF_MATCH_TTL is not set
 CONFIG_IP_NF_MATCH_TCPMSS=3Dm
@@ -172,7 +173,7 @@
 # CONFIG_IP_NF_TARGET_DSCP is not set
 CONFIG_IP_NF_TARGET_MARK=3Dm
 CONFIG_IP_NF_TARGET_LOG=3Dm
-# CONFIG_IP_NF_TARGET_ULOG is not set
+CONFIG_IP_NF_TARGET_ULOG=3Dm
 CONFIG_IP_NF_TARGET_TCPMSS=3Dm
 # CONFIG_IP_NF_ARPTABLES is not set
 CONFIG_IP_NF_COMPAT_IPCHAINS=3Dm
@@ -310,12 +311,12 @@
 #
 CONFIG_BLK_DEV_SD=3Dy
 CONFIG_SD_EXTRA_DEVS=3D40
-CONFIG_CHR_DEV_ST=3Dm
+CONFIG_CHR_DEV_ST=3Dy
 # CONFIG_CHR_DEV_OSST is not set
 CONFIG_BLK_DEV_SR=3Dy
 # CONFIG_BLK_DEV_SR_VENDOR is not set
 CONFIG_SR_EXTRA_DEVS=3D2
-CONFIG_CHR_DEV_SG=3Dm
+CONFIG_CHR_DEV_SG=3Dy
 
 #
 # Some SCSI devices (e.g. CD jukebox) support multiple LUNs
@@ -370,7 +371,7 @@
 CONFIG_53C700_USE_CONSISTENT=3Dy
 # CONFIG_SCSI_NCR53C7xx is not set
 CONFIG_SCSI_SYM53C8XX_2=3Dy
-CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=3D0
+CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=3D1
 CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=3D16
 CONFIG_SCSI_SYM53C8XX_MAX_TAGS=3D64
 # CONFIG_SCSI_SYM53C8XX_IOMAPPED is not set
@@ -381,7 +382,7 @@
 CONFIG_ASK_ZALON=3Dy
 CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=3D8
 CONFIG_SCSI_NCR53C8XX_MAX_TAGS=3D32
-CONFIG_SCSI_NCR53C8XX_SYNC=3D80
+CONFIG_SCSI_NCR53C8XX_SYNC=3D20
 # CONFIG_SCSI_NCR53C8XX_PROFILE is not set
 # CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
 # CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
@@ -444,7 +445,7 @@
 # CONFIG_HP100 is not set
 # CONFIG_NET_ISA is not set
 CONFIG_NET_PCI=3Dy
-# CONFIG_PCNET32 is not set
+CONFIG_PCNET32=3Dm
 CONFIG_ADAPTEC_STARFIRE=3Dm
 # CONFIG_AC3200 is not set
 # CONFIG_APRICOT is not set
@@ -483,7 +484,7 @@
 #
 # Ethernet (1000 Mbit)
 #
-CONFIG_ACENIC=3Dm
+# CONFIG_ACENIC is not set
 # CONFIG_ACENIC_OMIT_TIGON_I is not set
 # CONFIG_DL2K is not set
 # CONFIG_E1000 is not set
@@ -492,7 +493,7 @@
 CONFIG_HAMACHI=3Dm
 CONFIG_YELLOWFIN=3Dm
 CONFIG_SK98LIN=3Dm
-# CONFIG_TIGON3 is not set
+CONFIG_TIGON3=3Dm
 # CONFIG_FDDI is not set
 # CONFIG_HIPPI is not set
 # CONFIG_PLIP is not set
@@ -533,8 +534,8 @@
 # Input core support
 #
 CONFIG_INPUT=3Dy
-CONFIG_INPUT_KEYBDEV=3Dm
-CONFIG_INPUT_MOUSEDEV=3Dm
+CONFIG_INPUT_KEYBDEV=3Dy
+CONFIG_INPUT_MOUSEDEV=3Dy
 CONFIG_INPUT_MOUSEDEV_SCREEN_X=3D1024
 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=3D768
 # CONFIG_INPUT_JOYDEV is not set
@@ -550,7 +551,25 @@
 CONFIG_SERIAL_CONSOLE=3Dy
 CONFIG_SERIAL_GSC=3Dy
 # CONFIG_SERIAL_EXTENDED is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
+CONFIG_SERIAL_NONSTANDARD=3Dy
+# CONFIG_COMPUTONE is not set
+# CONFIG_ROCKETPORT is not set
+# CONFIG_CYCLADES is not set
+# CONFIG_DIGIEPCA is not set
+# CONFIG_DIGI is not set
+# CONFIG_ESPSERIAL is not set
+# CONFIG_MOXA_INTELLIO is not set
+# CONFIG_MOXA_SMARTIO is not set
+# CONFIG_ISI is not set
+# CONFIG_SYNCLINK is not set
+# CONFIG_SYNCLINKMP is not set
+# CONFIG_N_HDLC is not set
+# CONFIG_RISCOM8 is not set
+# CONFIG_SPECIALIX is not set
+# CONFIG_SX is not set
+# CONFIG_RIO is not set
+# CONFIG_STALDRV is not set
+CONFIG_PDC_CONSOLE=3Dy
 CONFIG_UNIX98_PTYS=3Dy
 CONFIG_UNIX98_PTY_COUNT=3D256
 CONFIG_PRINTER=3Dy
@@ -581,7 +600,7 @@
 # CONFIG_INPUT_PCIGAME is not set
 # CONFIG_INPUT_CS461X is not set
 # CONFIG_INPUT_EMU10K1 is not set
-# CONFIG_INPUT_SERIO is not set
+CONFIG_INPUT_SERIO=3Dy
 # CONFIG_INPUT_SERPORT is not set
 
 #
@@ -644,15 +663,14 @@
 #
 CONFIG_HP_SDC=3Dy
 # CONFIG_HP_SDC_RTC is not set
-# CONFIG_HIL_MLC is not set
-
-#
-#   Serial IO support needed for HIL keyboard and mouse support
-#
+CONFIG_HIL_MLC=3Dy
+CONFIG_HP_SDC_MLC=3Dy
 
 #
 #  HIL device driver
 #
+CONFIG_HIL_KBD=3Dy
+CONFIG_HIL_PTR=3Dy
 
 #
 # Multimedia devices
@@ -677,7 +695,7 @@
 # CONFIG_BFS_FS is not set
 CONFIG_EXT3_FS=3Dy
 CONFIG_JBD=3Dy
-CONFIG_JBD_DEBUG=3Dy
+# CONFIG_JBD_DEBUG is not set
 CONFIG_FAT_FS=3Dm
 CONFIG_MSDOS_FS=3Dm
 # CONFIG_UMSDOS_FS is not set
@@ -691,7 +709,7 @@
 CONFIG_ISO9660_FS=3Dy
 CONFIG_JOLIET=3Dy
 # CONFIG_ZISOFS is not set
-CONFIG_JFS_FS=3Dy
+# CONFIG_JFS_FS is not set
 # CONFIG_JFS_DEBUG is not set
 # CONFIG_JFS_STATISTICS is not set
 CONFIG_MINIX_FS=3Dm
@@ -962,7 +980,7 @@
 # Kernel hacking
 #
 CONFIG_MAGIC_SYSRQ=3Dy
-# CONFIG_DEBUG_SPINLOCK is not set
+CONFIG_DEBUG_SPINLOCK=3Dy
 
 #
 # Library routines

Is somebody see what could be wrong (It would also help me for 2.5 with
which met the same pb a time ago)?

See you next year.

Thanks again ,
    Joel


*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be





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Xref: news.gmane.org gmane.linux.ports.parisc:17163

Hi,

DUMMY_CONSOLE also needs _ROWS and _COLUMNS.

#
# Console display driver support
#
# CONFIG_VGA_CONSOLE is not set
# CONFIG_MDA_CONSOLE is not set
# CONFIG_STI_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64


--- drivers/video/console/Kconfig.orig	2002-12-19 18:45:38.000000000 +0000
+++ drivers/video/console/Kconfig	2002-12-19 18:47:14.000000000 +0000
@@ -74,9 +74,21 @@
           machines.  Say Y here to build support for it into your kernel.
           The alternative is to use your primary serial port as a console.

+config PROM_CONSOLE
+	bool "PROM console"
+	depends on SPARC32 || SPARC64
+	help
+	  Say Y to build a console driver for Sun machines that uses the
+	  terminal emulation built into their console PROMS.
+
+config DUMMY_CONSOLE
+	bool
+	depends on !PROM_CONSOLE=y || VGA_CONSOLE!=y || SGI_NEWPORT_CONSOLE!=y || !IODC_CONSOLE && GSC_PS2
+	default y
+
 config DUMMY_CONSOLE_COLUMNS
         int "Initial number of STI console screen columns" if STI_CONSOLE
-        depends on STI_CONSOLE || FB_STI
+        depends on STI_CONSOLE || FB_STI || DUMMY_CONSOLE
         default "160"
         help
           The default value is 160, which should fit a 1280x1024 monitor.
@@ -84,24 +96,12 @@

 config DUMMY_CONSOLE_ROWS
         int "Initial number of STI console screen rows" if STI_CONSOLE
-        depends on STI_CONSOLE || FB_STI
+        depends on STI_CONSOLE || FB_STI || DUMMY_CONSOLE
         default "64"
         help
           The default value is 64, which should fit a 1280x1024 monitor.
           Select 25 if you use a 640x480 resolution by default.

-config PROM_CONSOLE
-	bool "PROM console"
-	depends on SPARC32 || SPARC64
-	help
-	  Say Y to build a console driver for Sun machines that uses the
-	  terminal emulation built into their console PROMS.
-
-config DUMMY_CONSOLE
-	bool
-	depends on !PROM_CONSOLE=y || VGA_CONSOLE!=y || SGI_NEWPORT_CONSOLE!=y || !IODC_CONSOLE && GSC_PS2
-	default y

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Xref: news.gmane.org gmane.linux.ports.parisc:17164

The patch below fixes base register modificiation in the unaligned
load/store code.  It still doesn't do floating point load/stores, and
I'll work on those later.  In the meantime, this will deal with lots
of issues around base reg modification not happening.

Part of the unrolling is a precursor to adding floating point stuff.

lamont

Index: arch/parisc/kernel/unaligned.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/unaligned.c,v
retrieving revision 1.11
diff -u -r1.11 unaligned.c
--- arch/parisc/kernel/unaligned.c	24 Sep 2002 05:52:46 -0000	1.11
+++ arch/parisc/kernel/unaligned.c	19 Dec 2002 23:00:36 -0000
@@ -66,28 +66,28 @@
 #define OPCODE3_MASK	OPCODE3(0x3f,1)
 #define OPCODE4_MASK    OPCODE4(0x3f)
 
-/* skip LDB (index) */
+/* skip LDB - never unaligned (index) */
 #define OPCODE_LDH_I	OPCODE1(0x03,0,0x1)
 #define OPCODE_LDW_I	OPCODE1(0x03,0,0x2)
 #define OPCODE_LDD_I	OPCODE1(0x03,0,0x3)
 #define OPCODE_LDDA_I	OPCODE1(0x03,0,0x4)
-/* skip LDCD (index) */
+#define OPCODE_LDCD_I	OPCODE1(0x03,0,0x5)
 #define OPCODE_LDWA_I	OPCODE1(0x03,0,0x6)
-/* skip LDCW (index) */
-/* skip LDB (short) */
+#define OPCODE_LDCW_I	OPCODE1(0x03,0,0x7)
+/* skip LDB - never unaligned (short) */
 #define OPCODE_LDH_S	OPCODE1(0x03,1,0x1)
 #define OPCODE_LDW_S	OPCODE1(0x03,1,0x2)
 #define OPCODE_LDD_S	OPCODE1(0x03,1,0x3)
 #define OPCODE_LDDA_S	OPCODE1(0x03,1,0x4)
-/* skip LDCD (short) */
+#define OPCODE_LDCD_S	OPCODE1(0x03,1,0x5)
 #define OPCODE_LDWA_S	OPCODE1(0x03,1,0x6)
-/* skip LDCW (short) */
-/* skip STB */
+#define OPCODE_LDCW_S	OPCODE1(0x03,1,0x7)
+/* skip STB - never unaligned */
 #define OPCODE_STH	OPCODE1(0x03,1,0x9)
 #define OPCODE_STW	OPCODE1(0x03,1,0xa)
 #define OPCODE_STD	OPCODE1(0x03,1,0xb)
-/* skip STBY */
-/* skip STDBY */
+/* skip STBY - never unaligned */
+/* skip STDBY - never unaligned */
 #define OPCODE_STWA	OPCODE1(0x03,1,0xe)
 #define OPCODE_STDA	OPCODE1(0x03,1,0xf)
 
@@ -103,15 +103,107 @@
 
 #define OPCODE_LDH_L    OPCODE4(0x11)
 #define OPCODE_LDW_L    OPCODE4(0x12)
-#define OPCODE_LDW_L2   OPCODE4(0x13)
+#define OPCODE_LDWM     OPCODE4(0x13)
 #define OPCODE_STH_L    OPCODE4(0x19)
 #define OPCODE_STW_L    OPCODE4(0x1A)
-#define OPCODE_STW_L2   OPCODE4(0x1B)
+#define OPCODE_STWM     OPCODE4(0x1B)
+
+#define MAJOR_OP(i) (((i)>>26)&0x3f)
+#define R1(i) (((i)>>21)&0x1f)
+#define R2(i) (((i)>>16)&0x1f)
+#define R3(i) ((i)&0x1f)
+#define IM(i,n) (((i)>>1&((1<<(n-1))-1))|((i)&1?((0-1L)<<(n-1)):0))
+#define IM5_2(i) IM((i)>>16,5)
+#define IM5_3(i) IM((i),5)
+#define IM14(i) IM((i),14)
 
 int unaligned_enabled = 1;
 
 void die_if_kernel (char *str, struct pt_regs *regs, long err);
 
+static int emulate_ldh(struct pt_regs *regs, int toreg)
+{
+	unsigned long saddr = regs->ior;
+	unsigned long val = 0;
+
+	DPRINTF("load " RFMT ":" RFMT " to r%d for 2 bytes\n", 
+		regs->isr, regs->ior, toreg);
+
+	__asm__ __volatile__  (
+"       mtsp	%3, %%sr1\n"
+"	ldbs	0(%%sr1,%2), %%r20\n"
+"	ldbs	1(%%sr1,%2), %0\n"
+	"depw	%%r20, 23, 24, %0\n"
+	: "=r" (val)
+	: "0" (val), "r" (saddr), "r" (regs->isr)
+	: "r20" );
+
+	DPRINTF("val = 0x" RFMT "\n", val);
+
+	if (toreg)
+		regs->gr[toreg] = val;
+
+	return 0;
+}
+static int emulate_ldw(struct pt_regs *regs, int toreg)
+{
+	unsigned long saddr = regs->ior;
+	unsigned long val = 0;
+
+	DPRINTF("load " RFMT ":" RFMT " to r%d for 4 bytes\n", 
+		regs->isr, regs->ior, toreg);
+
+	__asm__ __volatile__  (
+"	zdep	%2,28,2,%%r19\n"		/* r19=(ofs&3)*8 */
+"	mtsp	%3, %%sr1\n"
+"	depw	%%r0,31,2,%2\n"
+"	ldw	0(%%sr1,%2),%0\n"
+"	ldw	4(%%sr1,%2),%%r20\n"
+"	subi	32,%%r19,%%r19\n"
+"	mtctl	%%r19,11\n"
+"	vshd	%0,%%r20,%0\n"
+	: "=r" (val)
+	: "0" (val), "r" (saddr), "r" (regs->isr)
+	: "r19", "r20" );
+
+	DPRINTF("val = 0x" RFMT "\n", val);
+
+	if (toreg)
+		regs->gr[toreg] = val;
+
+	return 0;
+}
+#ifdef __LP64__
+static int emulate_ldd(struct pt_regs *regs, int toreg)
+{
+	unsigned long saddr = regs->ior;
+	unsigned long val = 0;
+
+	DPRINTF("load " RFMT ":" RFMT " to r%d for 8 bytes\n", 
+		regs->isr, regs->ior, toreg);
+
+	__asm__ __volatile__  (
+"	zdepd	%2,60,3,%%r19\n"		/* r19=(ofs&7)*8 */
+"       mtsp	%3, %%sr1\n"
+"	depd	%%r0,63,3,%2\n"
+"	ldd	0(%%sr1,%2),%0\n"
+"	ldd	8(%%sr1,%2),%%r20\n"
+"	subi	64,%%r19,%%r19\n"
+"	mtsar	%%r19\n"
+"	shrpd	%0,%%r20,%sar,%0\n"
+	: "=r" (val)
+	: "0" (val), "r" (saddr), "r" (regs->isr)
+	: "r19", "r20" );
+
+	DPRINTF("val = 0x" RFMT "\n", val);
+
+	if (toreg)
+		regs->gr[toreg] = val;
+
+	return 0;
+}
+#endif
+#if 0
 static int emulate_load(struct pt_regs *regs, int len, int toreg)
 {
 	unsigned long saddr = regs->ior;
@@ -159,19 +251,144 @@
 
 	DPRINTF("val = 0x" RFMT "\n", val);
 
-	regs->gr[toreg] = val;
+	if (toreg)
+		regs->gr[toreg] = val;
 
 	return ret;
 }
+#endif
+
+static int emulate_sth(struct pt_regs *regs, int frreg)
+{
+	unsigned long val = regs->gr[frreg];
+	if (!frreg)
+		val = 0;
+
+	DPRINTF("store r%d (0x" RFMT ") to " RFMT ":" RFMT " for 2 bytes\n", frreg, 
+		regs->gr[frreg], regs->isr, regs->ior);
+
+	__asm__ __volatile__ (
+"       mtsp %2, %%sr1\n"
+"	extrw,u %0, 23, 8, %%r19\n"
+"	stb %0, 1(%%sr1, %1)\n"
+"	stb %%r19, 0(%%sr1, %1)\n"
+	:
+	: "r" (val), "r" (regs->ior), "r" (regs->isr)
+	: "r19" );
+
+	return 0;
+}
+static int emulate_stw(struct pt_regs *regs, int frreg)
+{
+	unsigned long val = regs->gr[frreg];
+	if (!frreg)
+		val = 0;
+
+	DPRINTF("store r%d (0x" RFMT ") to " RFMT ":" RFMT " for 4 bytes\n", frreg, 
+		regs->gr[frreg], regs->isr, regs->ior);
+
+
+	__asm__ __volatile__ (
+"       mtsp %2, %%sr1\n"
+#if 0
+"	extru	%0,  7, 8, %%r19\n"
+"	extru	%0, 15, 8, %%r20\n"
+"	extru	%0, 23, 8, %%r21\n"
+"	stb	%%r19, 0(%%sr1, %1)\n"
+"	stb	%%r20, 1(%%sr1, %1)\n"
+"	stb	%%r21, 2(%%sr1, %1)\n"
+"	stb	%0, 3(%%sr1, %1)\n"
+	:
+	: "r" (val), "r" (regs->ior), "r" (regs->isr)
+	: "r19", "r20", "r21" );
+#else
+"	zdep	%1, 28, 2, %%r19\n"
+"	dep	%%r0, 31, 2, %1\n"
+"	mtsar	%%r19\n"
+"	zvdepi	-2, 32, %%r19\n"
+"	ldw	0(%%sr1,%1),%%r20\n"
+"	ldw	4(%%sr1,%1),%%r21\n"
+"	vshd	%%r0, %0, %%r22\n"
+"	vshd	%0, %%r0, %%r1\n"
+"	and	%%r20, %%r19, %%r20\n"
+"	andcm	%%r21, %%r19, %%r21\n"
+"	or	%%r22, %%r20, %%r20\n"
+"	or	%%r1, %%r21, %%r21\n"
+"	stw	%%r20,0(%%sr1,%1)\n"
+"	stw	%%r21,4(%%sr1,%1)\n"
+	:
+	: "r" (val), "r" (regs->ior), "r" (regs->isr)
+	: "r19", "r20", "r21", "r22", "r1" );
+#endif
 
+	return 0;
+}
+#ifdef __LP64__
+static int emulate_std(struct pt_regs *regs, int frreg)
+{
+	unsigned long val = regs->gr[frreg];
+	if (!frreg)
+		val = 0;
+
+	DPRINTF("store r%d (0x" RFMT ") to " RFMT ":" RFMT " for 8 bytes\n", frreg, 
+		regs->gr[frreg], regs->isr, regs->ior);
+
+
+	__asm__ __volatile__ (
+"       mtsp %2, %%sr1\n"
+#if 0
+"	extrd	%0,  7, 8, %%r19\n"
+"	extrd	%0, 15, 8, %%r20\n"
+"	stb	%%r19, 0(%%sr1, %1)\n"
+"	stb	%%r20, 1(%%sr1, %1)\n"
+"	extrd	%0, 23, 8, %%r19\n"
+"	extrd	%0, 31, 8, %%r20\n"
+"	stb	%%r19, 2(%%sr1, %1)\n"
+"	stb	%%r20, 3(%%sr1, %1)\n"
+"	extrd	%0, 39, 8, %%r19\n"
+"	extrd	%0, 47, 8, %%r20\n"
+"	extrd	%0, 55, 8, %%r21\n"
+"	stb	%%r19, 4(%%sr1, %1)\n"
+"	stb	%%r20, 5(%%sr1, %1)\n"
+"	stb	%%r21, 6(%%sr1, %1)\n"
+"	stb	%0, 7(%%sr1, %1)\n"
+	: 
+	: "r" (val), "r" (regs->ior), "r" (regs->isr)
+	: "r19", "r20", "r21" );
+#else
+"	depd,z	%1, 60, 3, %%r19\n"
+"	depd	%%r0, 63, 3, %1\n"
+"	mtsar	%%r19\n"
+"	depdi,z	-2, 64, %%r19\n"
+"	ldd	0(%%sr1,%1),%%r20\n"
+"	ldd	8(%%sr1,%1),%%r21\n"
+"	shrpd	%%r0, %0, %sar, %%r22\n"
+"	shrpd	%0, %%r0, %sar, %%r1\n"
+"	and	%%r20, %%r19, %%r20\n"
+"	andcm	%%r21, %%r19, %%r21\n"
+"	or	%%r22, %%r20, %%r20\n"
+"	or	%%r1, %%r21, %%r21\n"
+"	std	%%r20,0(%%sr1,%1)\n"
+"	std	%%r21,8(%%sr1,%1)\n"
+	:
+	: "r" (val), "r" (regs->ior), "r" (regs->isr)
+	: "r19", "r20", "r21", "r22", "r1" );
+#endif
+
+	return 0;
+}
+#endif
+#if 0
 static int emulate_store(struct pt_regs *regs, int len, int frreg)
 {
 	int ret = 0;
 #ifdef __LP64__
-	unsigned long val = regs->gr[frreg] << (64 - (len << 3));
+        unsigned long val = regs->gr[frreg] << (64 - (len << 3));
 #else
-	unsigned long val = regs->gr[frreg] << (32 - (len << 3));
+        unsigned long val = regs->gr[frreg] << (32 - (len << 3));
 #endif
+	if (!frreg)
+		val = 0;
 
 	if (regs->isr != regs->sr[7])
 	{
@@ -220,12 +437,15 @@
 
 	return ret;
 }
+#endif
 
 
 void handle_unaligned(struct pt_regs *regs)
 {
 	unsigned long unaligned_count = 0;
 	unsigned long last_time = 0;
+	unsigned long newbase = regs->gr[R1(regs->iir)];
+	int modify = 0;
 	int ret = -1;
 	struct siginfo si;
 
@@ -284,83 +504,169 @@
 	if (!unaligned_enabled)
 		goto force_sigbus;
 
+	/* handle modification - OK, it's ugly, see the instruction manual */
+	switch (MAJOR_OP(regs->iir))
+	{
+	case 0x03:
+	case 0x09:
+	case 0x0b:
+		if (regs->iir&0x20)
+		{
+			modify = 1;
+			if (regs->iir&0x1000)		/* short loads */
+				if (regs->iir&0x200)
+					newbase += IM5_3(regs->iir);
+				else
+					newbase += IM5_2(regs->iir);
+			else if (regs->iir&0x2000)	/* scaled indexed */
+			{
+				int shift=0;
+				switch (regs->iir & OPCODE1_MASK)
+				{
+				case OPCODE_LDH_I:
+					shift= 1; break;
+				case OPCODE_LDW_I:
+					shift= 2; break;
+				case OPCODE_LDD_I:
+				case OPCODE_LDDA_I:
+					shift= 3; break;
+				}
+				newbase += regs->gr[R2(regs->iir)]<<shift;
+			} else				/* simple indexed */
+				newbase += regs->gr[R2(regs->iir)];
+		}
+		break;
+	case 0x13:
+	case 0x1b:
+		modify = 1;
+		newbase += IM14(regs->iir);
+		break;
+	case 0x14:
+	case 0x1c:
+		if (regs->iir&8)
+		{
+			modify = 1;
+			newbase += IM14(regs->iir&~0xe);
+		}
+		break;
+	case 0x16:
+	case 0x1e:
+		modify = 1;
+		newbase += IM14(regs->iir&6);
+		break;
+	case 0x17:
+	case 0x1f:
+		if (regs->iir&4)
+		{
+			modify = 1;
+			newbase += IM14(regs->iir&~4);
+		}
+		break;
+	}
+
+	if (regs->isr != regs->sr[7])
+	{
+		printk(KERN_CRIT "isr verification failed (isr: " RFMT ", sr7: " RFMT "\n",
+			regs->isr, regs->sr[7]);
+
+		/* don't kill him though, since he has appropriate access to the page, or we
+		 * would never have gotten here.
+		 */
+	}
+
 	/* TODO: make this cleaner... */
 	switch (regs->iir & OPCODE1_MASK)
 	{
 	case OPCODE_LDH_I:
 	case OPCODE_LDH_S:
-		ret = emulate_load(regs, 2, regs->iir & 0x1f);
+		ret = emulate_ldh(regs, R3(regs->iir));
 		break;
 
 	case OPCODE_LDW_I:
 	case OPCODE_LDWA_I:
 	case OPCODE_LDW_S:
 	case OPCODE_LDWA_S:
-		ret = emulate_load(regs, 4, regs->iir&0x1f);
-		break;
-
-	case OPCODE_LDD_I:
-	case OPCODE_LDDA_I:
-	case OPCODE_LDD_S:
-	case OPCODE_LDDA_S:
-		ret = emulate_load(regs, 8, regs->iir&0x1f);
+		ret = emulate_ldw(regs, R3(regs->iir));
 		break;
 
 	case OPCODE_STH:
-		ret = emulate_store(regs, 2, (regs->iir>>16)&0x1f);
+		ret = emulate_sth(regs, R2(regs->iir));
 		break;
 
 	case OPCODE_STW:
 	case OPCODE_STWA:
-		ret = emulate_store(regs, 4, (regs->iir>>16)&0x1f);
+		ret = emulate_stw(regs, R2(regs->iir));
+		break;
+
+#ifdef __LP64__
+	case OPCODE_LDD_I:
+	case OPCODE_LDDA_I:
+	case OPCODE_LDD_S:
+	case OPCODE_LDDA_S:
+		ret = emulate_ldd(regs, R3(regs->iir));
 		break;
 
 	case OPCODE_STD:
 	case OPCODE_STDA:
-		ret = emulate_store(regs, 8, (regs->iir>>16)&0x1f);
+		ret = emulate_std(regs, R2(regs->iir));
+		break;
+#endif
+
+	case OPCODE_LDCD_I:
+	case OPCODE_LDCW_I:
+	case OPCODE_LDCD_S:
+	case OPCODE_LDCW_S:
+		ret = -1;	/* "undefined", but lets kill them. */
 		break;
 	}
+#ifdef __LP64__
 	switch (regs->iir & OPCODE2_MASK)
 	{
 	case OPCODE_LDD_L:
 	case OPCODE_FLDD_L:
-		ret = emulate_load(regs, 8, (regs->iir>>16)&0x1f);
+		ret = emulate_ldd(regs, R2(regs->iir));
 		break;
 
 	case OPCODE_STD_L:
 	case OPCODE_FSTD_L:
-		ret = emulate_store(regs, 8, (regs->iir>>16)&0x1f);
+		ret = emulate_std(regs, R2(regs->iir));
 		break;
 	}
+#endif
 	switch (regs->iir & OPCODE3_MASK)
 	{
 	case OPCODE_LDW_M:
 	case OPCODE_FLDW_L:
-		ret = emulate_load(regs, 4, (regs->iir>>16)&0x1f);
+		ret = emulate_ldw(regs, R2(regs->iir));
 		break;
 
 	case OPCODE_FSTW_L:
 	case OPCODE_STW_M:
-		ret = emulate_store(regs, 4, (regs->iir>>16)&0x1f);
+		ret = emulate_stw(regs, R2(regs->iir));
 		break;
 	}
 	switch (regs->iir & OPCODE4_MASK)
 	{
 	case OPCODE_LDH_L:
-		ret = emulate_load(regs, 2, (regs->iir>>16)&0x1f);
+		ret = emulate_ldh(regs, R2(regs->iir));
 		break;
 	case OPCODE_LDW_L:
-	case OPCODE_LDW_L2:
-		ret = emulate_load(regs, 4, (regs->iir>>16)&0x1f);
+	case OPCODE_LDWM:
+		ret = emulate_ldw(regs, R2(regs->iir));
 		break;
 	case OPCODE_STH_L:
-		ret = emulate_store(regs, 2, (regs->iir>>16)&0x1f);
+		ret = emulate_sth(regs, R2(regs->iir));
 		break;
 	case OPCODE_STW_L:
-	case OPCODE_STW_L2:
-		ret = emulate_store(regs, 4, (regs->iir>>16)&0x1f);
+	case OPCODE_STWM:
+		ret = emulate_stw(regs, R2(regs->iir));
 		break;
 	}
+	/* XXX LJ - need to handle float load/store */
+
+	if (modify)
+		regs->gr[R1(regs->iir)] = newbase;
+
 
 	if (ret < 0)
 		printk(KERN_CRIT "Not-handled unaligned insn 0x%08lx\n", regs->iir);
@@ -424,9 +730,9 @@
 			align_mask = 1UL;
 			break;
 		case OPCODE_LDW_L:
-		case OPCODE_LDW_L2:
+		case OPCODE_LDWM:
 		case OPCODE_STW_L:
-		case OPCODE_STW_L2:
+		case OPCODE_STWM:
 			align_mask = 3UL;
 			break;
 		}


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Xref: news.gmane.org gmane.linux.ports.parisc:17165

Hi all,

Merging 2.4.21-pre2 with parisc tree, I notice the following the followin=
g
pb:
diff -urN linux-2.4.21-pre1/include/linux/sysctl.h linux-2.4.21-pre2/incl=
ude/linux/sysctl.h
--- linux-2.4.21-pre1/include/linux/sysctl.h    Thu Nov 28 15:53:15 2002
+++ linux-2.4.21-pre2/include/linux/sysctl.h    Wed Dec 18 14:16:28 2002
@@ -124,6 +124,7 @@
        KERN_CORE_USES_PID=3D52,          /* int: use core or core.%pid *=
/
        KERN_TAINTED=3D53,        /* int: various kernel tainted flags */=

        KERN_CADPID=3D54,         /* int: PID of the process to notify on=

CAD */
+       KERNhttp://webmail.tiscali.be/mail/MessageCompose?sid=3DF39CE574C=
27DDBCF1206D1BB891159045C80B6DB&userid=3Djsoe0708@tiscali.be&seq=3DC&auth=
=3D3WR5O5FJOCJG1FDS&style=3Dfrans&abcompose=3D0
:: envoyer_CORE_PATTERN=3D56,   /* string: pattern for core-files */
 };


into linux-2.4.21-pre1-pa15/include/linux/sysctl.h
        KERN_TAINTED=3D53,        /* int: various kernel tainted flags */=

        KERN_CADPID=3D54,         /* int: PID of the process to notify on=

CAD */
        KERN_HPPA_PWRSW=3D55,     /* int: hppa soft-power enable */
        KERN_HPPA_UNALIGNED=3D56, /* int: hppa unaligned-trap enable */
};
                            ^^^^ same as new KERN_CORE_PATTERN

What should I to do?

Joel



*************************************************************************=
*******
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Subject: RE: [parisc-linux] 2.4.21-pre2 : sysctl.h pb
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Xref: news.gmane.org gmane.linux.ports.parisc:17166

?? 

Actual mesage is:

Hi all,

Merging 2.4.21-pre2 with parisc tree, I notice the following the followin=
g
pb:
diff -urN linux-2.4.21-pre1/include/linux/sysctl.h linux-2.4.21-pre2/incl=
ude/linux/sysctl.h
--- linux-2.4.21-pre1/include/linux/sysctl.h    Thu Nov 28 15:53:15 2002
+++ linux-2.4.21-pre2/include/linux/sysctl.h    Wed Dec 18 14:16:28 2002
@@ -124,6 +124,7 @@
        KERN_CORE_USES_PID=3D52,          /* int: use core or core.%pid *=
/
        KERN_TAINTED=3D53,        /* int: various kernel tainted flags */=

        KERN_CADPID=3D54,         /* int: PID of the process to notify on=

CAD */
+       KERN_CORE_PATTERN=3D56,   /* string: pattern for core-files */
 };


into linux-2.4.21-pre1-pa15/include/linux/sysctl.h
        KERN_TAINTED=3D53,        /* int: various kernel tainted flags */=

        KERN_CADPID=3D54,         /* int: PID of the process to notify on=

CAD */
        KERN_HPPA_PWRSW=3D55,     /* int: hppa soft-power enable */
        KERN_HPPA_UNALIGNED=3D56, /* int: hppa unaligned-trap enable */
};
                            ^^^^ same as new KERN_CORE_PATTERN

What should I to do?

Sorry,
Joel


*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be





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Subject: Re: [parisc-linux] 2.4.21-pre2 : sysctl.h pb
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Xref: news.gmane.org gmane.linux.ports.parisc:17167

> Merging 2.4.21-pre2 with parisc tree, I notice the following the following
> pb:

just bump the hppa numbers
>         KERN_HPPA_PWRSW=55,     /* int: hppa soft-power enable */
>         KERN_HPPA_UNALIGNED=56, /* int: hppa unaligned-trap enable */

make these 57, 58 or so

it seems a bit odd to me that the sysctl number space is not
partitioned, but... 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Xref: news.gmane.org gmane.linux.ports.parisc:17168

Hi Randolph,

>> Merging 2.4.21-pre2 with parisc tree, I notice the following the follo=
wing
>> pb:
>
>just bump the hppa numbers
>>         KERN_HPPA_PWRSW=3D55,     /* int: hppa soft-power enable */
>>         KERN_HPPA_UNALIGNED=3D56, /* int: hppa unaligned-trap enable *=
/
>
>make these 57, 58 or so
>
>it seems a bit odd to me that the sysctl number space is not
>partitioned, but... 
>
Well I choose 57 and obtain a vmlinux.
But eventhought I used my config file I get this time a system which hung=

on my b2k at 'Search Devices...' and the green led stay continiously ligh=
t???
I will try to fix it next year :-))

Thanks for advise,
    Joel



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Xref: news.gmane.org gmane.linux.ports.parisc:17169

Hi,

is there a chance that 2.5.52 gets merged in the next days or does
anyone have a patch a hand to fix the kernel/*.ko modules problem ?

Couldn't find one from rusty that works with current parisc cvs :(
Getting undefined references...

Thanks.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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On Thu, Dec 19, 2002 at 03:08:15PM +1300, Gavin Hubbard wrote:
> The other difference is the PCI controller support - the rp2430 has two
> working PCI slots and two disabled slots which are enabled by the upgrade.

ok. I didn't know that.

> Since I don't actually know how the device disabling is done in hardware,
> I'm not convinced that parisc-linux will come up smoothly after
> I install the upgrade (I'm not worried about HP-UX - it will be fine).

Well, if you really end up with the equivalent to an rp2470, then
I can assure you there is a kernel out there that will work since
that's what several developers are using (including myself).

> Can anyone shed light on this?

I suspect the rp2430 PDC simply doesn't report one (or two) of the
PCI bus controllers. Neither HPUX nor parisc-linux will see those slots.
Very simple to implement and requires no HW changes.

grant


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This is a multipart MIME message.

--==_Exmh_15075616400
Content-Type: text/plain; charset=us-ascii

randolph@tausq.org said:
> that's what i thought too, so i went through entry.S as well to see
> what i can find. haven't found anything yet :( 

OK, I think I found the cause of this and the solution.

The cause is in syscall.S in linux_gateway_entry.  Some person (herinafter 
referred to as "the guilty party") added a patch to store the user stack on 
the kernel stack temporarily before stashing it correctly in the user pt_regs:

	STREG	%r1,0(%r30)			/* Stick r1 (usp) here for now */

The problem is that they forgot to increment the stack pointer.  Thus, if we 
take an interruption between this instruction and the corresponding retrieval, 
the value can be trashed.

The fix is simple: increment the stack pointer.  I chose 16 to preserve every 
alignment I can think of is that also safe for 64 bit?

With this fix, my system seems fairly solid.  It survives my bitkeeper and 
stress tests so far (about 30 min) previously it always collapsed within a few 
minutes.

James

P.S. After this little debug frenzy, I don't personally care if I ever see 
another line of parisc assembly again, so if another obscure register trashing 
problem turns up, my good deed is done...


James


--==_Exmh_15075616400
Content-Type: text/plain ; name="tmp.diff"; charset=us-ascii
Content-Description: tmp.diff
Content-Disposition: attachment; filename="tmp.diff"

===== arch/parisc/kernel/syscall.S 1.5 vs edited =====
--- 1.5/arch/parisc/kernel/syscall.S	Fri Nov 29 04:31:54 2002
+++ edited/arch/parisc/kernel/syscall.S	Fri Dec 20 15:46:40 2002
@@ -94,6 +94,7 @@
 
 	mtsp	%r0,%sr7			/* get kernel space into sr7 */
 	STREG	%r1,0(%r30)			/* Stick r1 (usp) here for now */
+	ldo	16(%r30),%r30
 	mfctl	%cr30,%r1			/*  get task ptr in %r1 */
 	LDREG	TI_TASK(%r1),%r1
 
@@ -104,7 +105,8 @@
 	   PSW value is stored.  This is needed for gdb and sys_ptrace. */
 	STREG	%r0,  TASK_PT_PSW(%r1)
 	STREG	%r2,  TASK_PT_GR2(%r1)		/* preserve rp */
-	LDREG	0(%r30), %r2			/* get users sp back */
+	LDREG	-16(%r30), %r2			/* get users sp back */
+	ldo	-16(%r30), %r30
 	STREG	%r2,  TASK_PT_GR30(%r1)		/* ... and save it */
 	STREG	%r19, TASK_PT_GR19(%r1)
 	STREG	%r20, TASK_PT_GR20(%r1)

--==_Exmh_15075616400--




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> @@ -104,7 +105,8 @@
>  	   PSW value is stored.  This is needed for gdb and sys_ptrace. */
>  	STREG	%r0,  TASK_PT_PSW(%r1)
>  	STREG	%r2,  TASK_PT_GR2(%r1)		/* preserve rp */
> -	LDREG	0(%r30), %r2			/* get users sp back */
> +	LDREG	-16(%r30), %r2			/* get users sp back */
> +	ldo	-16(%r30), %r30

I believe that can combine the above two instructions into one with
a ",ma" completer.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Fri, Dec 20, 2002 at 04:12:37PM -0600, James Bottomley wrote:
> The fix is simple: increment the stack pointer.  I chose 16 to preserve every 
> alignment I can think of is that also safe for 64 bit?

needs to be 64 bytes - lamont confirmed.

> With this fix, my system seems fairly solid.  It survives my bitkeeper and 
> stress tests so far (about 30 min) previously it always collapsed within
> a few minutes.

excellent!

> P.S. After this little debug frenzy, I don't personally care if I ever see 
> another line of parisc assembly again, so if another obscure register
> trashing problem turns up, my good deed is done...

*G*
/me kowtows to the east several times...


>  	STREG	%r1,0(%r30)			/* Stick r1 (usp) here for now */
> +	ldo	16(%r30),%r30

As David observed, this wants to use ",ma" and I'll work that out with
lamont/helge offline.
Something will get committed to 2.4.x/2.5.x trees this afternoon.

thanks - what a wonderful Christmas present! :^)

grant


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On Fri, Dec 20, 2002 at 04:12:37PM -0600, James Bottomley wrote:
...
> The problem is that they forgot to increment the stack pointer.  Thus, if we 
> take an interruption between this instruction and the corresponding
> retrieval, the value can be trashed.

It doesn't look like this bug is present in 2.4.
Richard suspects it was introduced when the task struct was split
from the stack. (I hope I recall his statement correctly)

The new code sequence is:
 95	mtsp    %r0,%sr7			/* get kernel space into sr7 */
 96	STREGM  %r1,FRAME_SIZE(%r30)		/* save r1 (usp) here for now */
 97	mfctl   %cr30,%r1			/* get task ptr in %r1 */
 98	LDREG   TI_TASK(%r1),%r1
105	STREG   %r0,  TASK_PT_PSW(%r1)
106	STREG   %r2,  TASK_PT_GR2(%r1)		/* preserve rp */
107	LDREGM  FRAME_SIZE(%r30), %r2		/* get users sp back */
108	STREG   %r2,  TASK_PT_GR30(%r1)		/* ... and save it */

where STREGM/LDREGM are new macros that use st<X>,ma instructions.
I'll commit this once I see it boots on my c3000.

But, given the assertion we could take an interrupt between line 96 and
107, would an interrupt between 95/96 cause Bad Things (tm) to happen?

grant


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grundler@dsl2.external.hp.com said:
> where STREGM/LDREGM are new macros that use st<X>,ma instructions.

Actually, I found STREG,ma and LDREG,mb worked for me.

grundler@dsl2.external.hp.com said:
> but, given the assertion we could take an interrupt between line 96 and
> 107, would an interrupt between 95/96 cause Bad Things (tm) to happen?

Not according to the parisc assembler manual.  As long as we can guarantee 
that the stack is incremented before the value is stored (which seems to be 
what STREG,ma seems to assure), we should be fine.

James








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> On Thu, Dec 19, 2002 at 03:08:15PM +1300, Gavin Hubbard wrote:
> > The other difference is the PCI controller support - the rp2430 has two
> > working PCI slots and two disabled slots which are enabled by the upgrade.
> 
> ok. I didn't know that.
> 
> > Since I don't actually know how the device disabling is done in hardware,
> > I'm not convinced that parisc-linux will come up smoothly after
> > I install the upgrade (I'm not worried about HP-UX - it will be fine).
> 
> Well, if you really end up with the equivalent to an rp2470, then
> I can assure you there is a kernel out there that will work since
> that's what several developers are using (including myself).
> 
> > Can anyone shed light on this?
> 
> I suspect the rp2430 PDC simply doesn't report one (or two) of the
> PCI bus controllers. Neither HPUX nor parisc-linux will see those slots.
> Very simple to implement and requires no HW changes.
> 
> grant

Thanks for the info Grant. If the only difference is in the PDC device tables then the transition should work with no problem.

The reason we are going with a rp2430 -> rp2470 rather than starting with an rp2470 is that upgrade will coincide with the system moving from development into production. This move is dependent on guesses we've made about business conditions in a few months time (which might be wrong).

Regards,

Gavin



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On Sat, Dec 21, 2002 at 04:19:55PM +1300, Gavin Hubbard wrote:
> Thanks for the info Grant. If the only difference is in the PDC device
> tables then the transition should work with no problem.

If your business will depend on this, then you need ask your
HP sales contacts to find out for sure and not just me guessing:
1) They have techinical support staff who are paid to figure this
   kind of thing out.
2) they will know a real customer is using/wants to use parisc-linux.
   (ie give parisc-linux visibility to the sales folks within HP)

hth,
grant


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On Fri, Dec 20, 2002 at 07:46:57PM -0600, James Bottomley wrote:
> Actually, I found STREG,ma and LDREG,mb worked for me.

doh! of course!
those are cpp macros, not asm macros.

> > but, given the assertion we could take an interrupt between line 96 and
> > 107, would an interrupt between 95/96 cause Bad Things (tm) to happen?
> 
> Not according to the parisc assembler manual.  As long as we can guarantee 
> that the stack is incremented before the value is stored (which seems to be 
> what STREG,ma seems to assure), we should be fine.

I'm not worried about the atomicity of the instruction.

I'm worried about sr7 getting modified without the user stack
pointer getting saved to the proper place. It might not be a
problem at all. I just don't know all the uses of user/kernel
stacks in the interrupt code paths. I'm wondering if the entire
code sequence I quoted needs to block interrupts while setting
up the syscall.

grant


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grundler@dsl2.external.hp.com said:
> I'm worried about sr7 getting modified without the user stack pointer
> getting saved to the proper place. It might not be a problem at all. I
> just don't know all the uses of user/kernel stacks in the interrupt
> code paths. I'm wondering if the entire code sequence I quoted needs
> to block interrupts while setting up the syscall. 

I don't think that's a problem.

An interruption can occur anywhere, and thus it saves all registers.  The only 
problem is that on parisc there aren't separate irq stacks, so the 
interruption expects to be able to use the current kernel stack (whatever it 
is).  As long as the kernel stack is always correctly set up when %sr7 points 
to kernel space, we should be fine.  If we take an interruption before zeroing 
sr7, we go through the procedure to obtain a kernel stack for an executing 
user process (however, in this case, the interruption will stash the registers 
in the task structure, so we can't modify the task structure until we've 
changed sr7 to kernel space).  Also note, we can't use the kernel stack until 
sr7 is in kernel space.

James




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> 2) they will know a real customer is using/wants to use parisc-linux.
>    (ie give parisc-linux visibility to the sales folks within HP)

That's definitely worthwhile.  A lot of progress has been made in the past
couple of years but we are definitely out gunned compared to the number
of developers working on other architecture.  Both ibm and sun are actively
promoting linux based systems on their architectures.

HP has to learn that there is now a system available for parisc that
surpasses in many ways their own.  There's still lots of rough edges,
but its coming.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Saturday 21 December 2002 05:02, Thibaut Varene wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.5
> Changes by:	varenet	02/12/20 21:02:54
>
> Modified files:
> 	include/asm-parisc: linux_logo.h
>
> Log message:
> Here is a logo _without_ the _very nice_ HP background that everybody hates
> here ;o)

Thanks a lot Thibaut !

For people interested in how the logos look(ed) like on different architectures
during time:
http://home.tvd.be/cr26864/Linux/fbdev/logo.html
Maybe we should add the PA-Penguin to the list at some point ?

> More seriously, this is the default logo (as found on i386) with a PA-RISC
> symbol tattoo'd on. See this for result:
> http://pateam.esiee.fr/archive/linux_logo-new.png
>
> If anyone has any comment/suggestion for sth nicer, please tell me.

I think the white border is somewhat too big ?!?

> BTW, I wonder about copyright mentions in the file...
> This is not actually "code", but picture. Should we mention any kind of
> copyright on it ?

No.  I'd vote for removing that (C)-info.

Helge



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On Fri, Dec 20, 2002 at 03:37:47PM -0700, Grant Grundler wrote:
> >  	STREG	%r1,0(%r30)			/* Stick r1 (usp) here for now */
> > +	ldo	16(%r30),%r30
> 
> As David observed, this wants to use ",ma" and I'll work that out with
> lamont/helge offline.
> Something will get committed to 2.4.x/2.5.x trees this afternoon.

*sigh*.  Can someone else test/commit this?

I've not been able to boot a 2.5.51 kernel on either A500-44 or C3000.
I won't commit what I can't test when others are obviously booting
2.5.51 kernels. My last attempts on A500-44 data page fault on
a NULL dereference in "$lctu_loop+8" (GR02 is sys_nanosleep+13c).
Panic seems to be after (AFAICT) all the RC scripts have run.
I'm at the end of my rope on 2.5.51.

I've placed the diff on ftp.parisc-linux.org:/patches/diff-2.5.51-pa5
The patch *looks* right and fixes a few other nits.
Should work on both PA1.1 and PA2.0 machines.
(and we have to use STREGM/LDREGM to support both variants).

thanks again and apologies for not committing it as promised.
grant



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On Sunday 22 December 2002 08:11, Grant Grundler wrote:
> On Fri, Dec 20, 2002 at 03:37:47PM -0700, Grant Grundler wrote:
> > >  	STREG	%r1,0(%r30)			/* Stick r1 (usp) here for now */
> > > +	ldo	16(%r30),%r30
> >
> > As David observed, this wants to use ",ma" and I'll work that out with
> > lamont/helge offline.
> > Something will get committed to 2.4.x/2.5.x trees this afternoon.
>
> *sigh*.  Can someone else test/commit this?

Seems to work without any problems on my 715/64.
I committed your changes to CVS (2.5.51-pa5).

Helge


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grundler@dsl2.external.hp.com said:
> I've placed the diff on ftp.parisc-linux.org:/patches/diff-2.5.51-pa5
> The patch *looks* right and fixes a few other nits. Should work on
> both PA1.1 and PA2.0 machines. (and we have to use STREGM/LDREGM to
> support both variants). 

Boots and runs fine for me on my C360.  I'm on 2.5.52-BK latest, rather than 
2.5.51 as the base, though.  Seems to be robust to my bitkeeper tests.  I'm 
going to use this as my development machine kernel now to see if I can find 
any other problems.

James




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On Sun, Dec 22, 2002 at 02:09:34AM -0700, Helge Deller wrote:
> I didn't applied the CONFIG_DUMMY_CONSOLE related setup.c changes, instead
> I changed Kconfig in drivers/video/console. Please test.

I made the same comment to Lamont on IRC after looking at it again.
Kconfig is a better approach.

thanks,
grant


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Subject: [parisc-linux] 2.4.20-paxx Config problem (follow-up)
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Xref: news.gmane.org gmane.linux.ports.parisc:17187

Hi all,

The problem I met with arch/parisc/32 on my b2k is due to the CONFIG_SERI=
AL_NONSTANDARD
(or a subselect ??).

Is PDC_console does not work on this model or is there a border effect li=
nk
with this selection?

Can somebody help me to fix it?

Thanks,
    Joel


********************************************
Promo Tiscali ADSL: 35 Euros/mois, 1er mois et activation =3D 0 Euro http=
://adsl.tiscali.be





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Subject: Re: [parisc-linux] 2.4.20-paxx Config problem (follow-up)
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Xref: news.gmane.org gmane.linux.ports.parisc:17188

Joel,

The PDC Console should work for this box as it is really a firmware
console.  The firmware console talks to /dev/ttyB0 instead of
/dev/ttyS0, so that might be your problem?  Also in recent kernels the
major number of /dev/ttyB0 changed from 60 to 11 so make sure the 
device file is correct.

Finally, out of curiosity, why are you trying to use the PDC console? 
The B2k should have a 16550 port (off the suckyio chip???) that should
work for you.

Thanks, and hope this helps!

- Ryan


On Mon, 2002-12-23 at 09:34, jsoe0708@tiscali.be wrote:
> Hi all,
> 
> The problem I met with arch/parisc/32 on my b2k is due to the CONFIG_SERIAL_NONSTANDARD
> (or a subselect ??).
> 
> Is PDC_console does not work on this model or is there a border effect link
> with this selection?
> 
> Can somebody help me to fix it?
> 
> Thanks,
>     Joel
> 
> 
> ********************************************
> Promo Tiscali ADSL: 35 Euros/mois, 1er mois et activation = 0 Euro http://adsl.tiscali.be
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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Subject: Re: [parisc-linux] 2.4.20-paxx Config problem (follow-up)
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Xref: news.gmane.org gmane.linux.ports.parisc:17189

Hi Ryan,
>
>The PDC Console should work for this box as it is really a firmware
>console.

I though too but seems to cause a problem with pci-ide cdrom?

>  The firmware console talks to /dev/ttyB0 instead of
>/dev/ttyS0, so that might be your problem?  Also in recent kernels the
>major number of /dev/ttyB0 changed from 60 to 11 so make sure the
>device file is correct.

IMHO it doesn't matter, as mentionned in previous mail, the system hang
very earlier at 'Search devices ...' step and the cdrom green led stay co=
ntiniously
light. Even TOC (I try it to get a piminfo) doesn't work at this stage.
Additionally, on a another b180 the problem doesn't occurs with the same
kernel?

>
>Finally, out of curiosity, why are you trying to use the PDC console?
>The B2k should have a 16550 port (off the suckyio chip???) that should
>work for you.
>
Yes usual serial console works fine for this model.
In fact the first goal was not to test PDC console but it was to test the=

basic config files suggested in arch/parisc/debian-configs (32 bits becau=
se
I test it in parallel on a 180).
AFAIK it is the config used to build install CD and network boot lifimage=
?
So, in case of problem (test corrupting system, disk broken, ...) and for=

the newbies, I would be sure that config is also relevant to (re-)build
_quickly_ a system of this model.

Thanks for your attention and advises (it will be usefull for futur test)=
.

Merry Christmas,
    Joel

PS: For 32 bit release UP release, I also find strange that DEBUG SPINLOC=
K
option was selected and selectable. I was also convinced that it had only=

matter with SMP config?


********************************************
Promo Tiscali ADSL: 35 Euros/mois, 1er mois et activation =3D 0 Euro http=
://adsl.tiscali.be





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Hi,

I'd like to have a 2nd network card on my 712/80. I know there is a normal
expansion card from HP, but they are hard to get.
Someone told me it's also possible to use a PCMCIA netword card. Is that
true and does anyone ever tried that?

Greetings,
Tim



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From: Geert Uytterhoeven <geert@linux-m68k.org>
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Subject: [parisc-linux] Generic RTC driver in 2.4.x?
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AFAIK the generic RTC driver is used on PA-RISC, PPC, and m68k.

Are you interested in a backport to 2.4.x?

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds



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Subject: Re: [parisc-linux] Generic RTC driver in 2.4.x?
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> AFAIK the generic RTC driver is used on PA-RISC, PPC, and m68k.
> 
> Are you interested in a backport to 2.4.x?

On parisc we already have a version of the generic RTC driver in our
2.4 tree. If there's something more "official" or common we can adopt
that version. 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi,

when palo cannot find a given kernel one gets that nice error
message. Can we go into interactive mode at this point after the
ERROR: ... ? ... so that one still has a chance to continue
booting without standing up and walking next room ;-)

--- cut ---
Booting
0x06.C7FF
palo ipl 1.1 root@c3k Tue Aug  6 09:39:51 MDT 2002

Partition Start(MB) End(MB) Id Type
1               1      30   f0 Palo
2              31     156   82 swap
3             157    2046   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 3584504 bytes @ 0x48000

Command line for kernel: 'root=/dev/sda3 HOME=/ TERM=linux console=ttyS0 palo_kernel=3/boot/vmlinux-2.5.53-pa3'
Selected kernel: /boot/vmlinux-2.5.53-pa3 from partition 3
ERROR: open /boot/vmlinux-2.5.53-pa3 from partition 3 failed
--- need to press power button here to continue and boot ipl ? ---

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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To: Tim Kemna <t.kemna@student.utwente.nl>
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On Tue, Dec 24, 2002 at 02:32:43PM +0100, Tim Kemna wrote:
> Hi,
> 
> I'd like to have a 2nd network card on my 712/80. I know there is a normal
> expansion card from HP, but they are hard to get.
> Someone told me it's also possible to use a PCMCIA netword card. Is that
> true and does anyone ever tried that?

in a 712/80?
Hah! That "someone" is joking with you.
I'm thinking PCI-PCMCIA Bridge/adapter card would be required and
712 has no PCI slots.

grant


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From: Tom Rini <trini@kernel.crashing.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Generic RTC driver in 2.4.x?
Date: Thu, 26 Dec 2002 10:55:29 -0700
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Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
	parisc-linux@parisc-linux.org,
	Linux/PPC Development <linuxppc-dev@lists.linuxppc.org>,
	Linux/m68k <linux-m68k@lists.linux-m68k.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>
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On Tue, Dec 24, 2002 at 03:51:47PM -0800, Randolph Chung wrote:
> > AFAIK the generic RTC driver is used on PA-RISC, PPC, and m68k.
> > 
> > Are you interested in a backport to 2.4.x?
> 
> On parisc we already have a version of the generic RTC driver in our
> 2.4 tree. If there's something more "official" or common we can adopt
> that version. 

Similarly, PPC has had it's own 'generic' RTC driver in the kernel for
ages, so there's no pressing need, but if the 2.5 version makes its way
back into 2.4 (as the 2.5 version has some minor changes needed for
everyone which weren't in the 2.4 m68k version), we can easily switch to
that version.

-- 
Tom Rini (TR1265)
http://gate.crashing.org/~trini/


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From: "John K." <jkirk9@cfl.rr.com>
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Subject: [parisc-linux] HIL Keyboard and mouse with KDE
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All

I have a 710 with HIL keyboard and mouse and have installed
debian-30r0-hppa.  When I boot the system I get the graphical login screen
but the keyboard is not working correctly.  Most of the keys don't seem to
do anything and the ones that do something put the wrong character on the
screen.  For example j is "/", the right "Extend Char" is 1, left "Extend
Char" is 2.

I found the HOWTO: Using HIL keyboard and HIL mouse on PARISC by Helge
Deller, Jun 30, 2002.

1.  I have the files /dev/input/mice, /dev/input/mouseX and
/dev/input/eventX where X is 0, 1, 2 and 3.

2.  I did not have a /etc/gpm.conf file so created one with the two lines:
device=/dev/input/mice
type=imps2

3.  I modified the etc/X11/XF86Config-4 as indicated in the HOWTO.

4.  Rebooted the system.

What do I do now?

Background:  When I first installed from the CD one of the first things that
is to do from the install menu is "Configure Keyboard" if I did that and
selected the option that would be the one I would think correct "Qwerty US"
the keyboard was also hosed so I just skipped that step.  After successfully
installing PARISC Linux it would come up with a command line login prompt
instead of the graphical login screen that I have now.  I started getting
the graphical login screen after fixing the video sections in the
XF86Config-4.

PS:  Is there someway to "interrupt" the boot process so that I get the
command line login instead of the graphical login screen?

PPS:  There is no way to "exit" from the nano-tiny editor.

Thanks for any and all help with my problems.

John Kirk




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Experimenting with initializers and finalizers, I find that the dynamic
loader doesn't run initializers in .init_array.  The linker sets up
DT_INIT_ARRAY to point to the list of initilizers .init_array but they
don't get run.  This appears to be a violation of the generic System V
ABI for ELF <http://www.caldera.com/developers/gabi/latest/contents.html>.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Experimenting with initializers and finalizers, I find that the dynamic
> loader doesn't run initializers in .init_array.  The linker sets up
> DT_INIT_ARRAY to point to the list of initilizers .init_array but they
> don't get run.  This appears to be a violation of the generic System V
> ABI for ELF <http://www.caldera.com/developers/gabi/latest/contents.html>.

Do you have a quick snip of code that shows this? I'm looking through
the glibc ld bits to determine where the mistake might reside.

I'm also building latest toolchain :)

c.



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Who wrote the parisc gdb support?
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parisc-linux,

In my quest to stop the painful maintenance of custom parisc patches I'm
going to begin pushing all the gdb changes upstream :)

I have split the current patch into a series of friendly patches and
will, after I figure out copyright, send them upstream.

Who wrote our initial gdb implementation?

c.



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Subject: [parisc-linux] Why do we relax e_ident[EI_OSABI] in gdb?
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parisc-linux,

Anyone have some ideas why we have this patch in gdb, and thus relax the 
EI_OSABI check?

--- gdb-5.2.cvs20020401/bfd/elf64-hppa.c~	Sun Mar 31 19:09:41 2002
+++ gdb-5.2.cvs20020401/bfd/elf64-hppa.c	Sat Apr 20 09:35:54 2002
@@ -372,7 +372,8 @@
   i_ehdrp = elf_elfheader (abfd);
   if (strcmp (bfd_get_target (abfd), "elf64-hppa-linux") == 0)
     {
-      if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX)
+      if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX &&
+          i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE)
 	return false;
     }
   else
--- gdb-5.2.cvs20020401/bfd/elf32-hppa.c~	Sun Mar 31 19:09:41 2002
+++ gdb-5.2.cvs20020401/bfd/elf32-hppa.c	Sat Apr 20 09:35:54 2002
@@ -1038,7 +1038,8 @@
   i_ehdrp = elf_elfheader (abfd);
   if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
     {
-      if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX)
+      if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX &&
+          i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE)
 	return false;
     }
   else
===

c.



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parisc,

Two programmers are seated at a bar hacking on PARISC,
when Joe turns to Jill and says:

Joe:  "I tried calling the function by it's address"
Jill: "Just lop off the first 2 bits."
Joe:  "Hey! It worked?! What did that do?"
Jill: "I don't know, but it's a clever fix, without a changelog,
       that I keep seeing in debian binutils and gdb code"

*ba dump ching*

Function descriptors :)

c.



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> parisc,
> 
> Two programmers are seated at a bar hacking on PARISC,
> when Joe turns to Jill and says:
> 
> Joe:  "I tried calling the function by it's address"
> Jill: "Just lop off the first 2 bits."
> Joe:  "Hey! It worked?! What did that do?"
> Jill: "I don't know, but it's a clever fix, without a changelog,
>        that I keep seeing in debian binutils and gdb code"
> 
> *ba dump ching*
> 
> Function descriptors :)

Won't work on hppa64 :))  Our ctor/dtor pointers are not function pointers.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: Re: [parisc-linux] Why do we relax e_ident[EI_OSABI] in gdb?
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On Thu, Dec 26, 2002 at 09:31:37PM -0500, Carlos O'Donell wrote:
> Anyone have some ideas why we have this patch in gdb, and thus relax the 
> EI_OSABI check?

Maybe this mail explains it?
http://lists.parisc-linux.org/hypermail/parisc-linux/2357.html

search for ELF_OSABI on lists.p-l.o turned up alot of hits.
But looks like just one thread.

grant


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: Re: [parisc-linux] Why do we relax e_ident[EI_OSABI] in gdb?
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On Thu, Dec 26, 2002 at 10:49:02PM -0700, Grant Grundler wrote:
> Maybe this mail explains it?
> http://lists.parisc-linux.org/hypermail/parisc-linux/2357.html

http://lists.parisc-linux.org/hypermail/parisc-linux/2377.html

This is a bit further down the "next thread" list and is Cary
Coutant trying to clarify the intent of the fields.

grant


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: Re: [parisc-linux] Who wrote the parisc gdb support?
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On Thu, Dec 26, 2002 at 09:07:11PM -0500, Carlos O'Donell wrote:
> Who wrote our initial gdb implementation?

Taggart said it was dhd and amodra mostly.
I think he is right.
IIRC, Most, if not all, of the work was funded by HP under contract
with Linuxcare in fall 2000 and spring 2001.

grant


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Who wrote the parisc gdb support?
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On Thu, Dec 26, 2002 at 11:20:18PM -0700, Grant Grundler wrote:
> On Thu, Dec 26, 2002 at 09:07:11PM -0500, Carlos O'Donell wrote:
> > Who wrote our initial gdb implementation?
> 
> Taggart said it was dhd and amodra mostly.
> I think he is right.
> IIRC, Most, if not all, of the work was funded by HP under contract
> with Linuxcare in fall 2000 and spring 2001.

I'd agree with that.  At one time I worked on kernel support for it,
while amodra worked on gdb itself.  We were both working for Linuxcare,
under contract to HP at the time.

Richard



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> > Taggart said it was dhd and amodra mostly.
> > I think he is right.
> > IIRC, Most, if not all, of the work was funded by HP under contract
> > with Linuxcare in fall 2000 and spring 2001.
> 
> I'd agree with that.  At one time I worked on kernel support for it,
> while amodra worked on gdb itself.  We were both working for Linuxcare,
> under contract to HP at the time.
> 

That's good then, since the chain of copyright now goes like this:

	Linuxcare -> HP -> FSF

It's rogue hackers without copyright assignment that do more than
trivial patches that worry me... not naming any names *cough* tausq
*cough* Though that person now has all the papers in place ;)

c.



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trying to bootstrap today's gcc-3_3-branch with gcc-3_2-branch
(20021212) fails in stage1 (binutils are 2.13.90.0.16-1). Adding the
mentioned -ffunction-sections as STAGE1_CFLAGS lets the bootstrap
succeed. However I couldn't find any hints on the special boot flags.

$ gcc-3.2    -g -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long -fno-common  -DHAVE_CONFIG_H -o cc1 c-parse.o c-lang.o c-pretty-print.o attribs.o c-errors.o c-lex.o c-pragma.o c-decl.o c-typeck.o c-convert.o c-aux-info.o c-common.o c-opts.o c-format.o c-semantics.o c-objc-common.o c-dump.o libcpp.a  main.o libbackend.a   ../libiberty/libiberty.a
/usr/bin/ld: libbackend.a(expr.o)(.text+0x3f744): cannot reach 000002c9_$$dyncall+0, recompile with -ffunction-sections
/usr/bin/ld: libbackend.a(expr.o)(.text+0x3f744): cannot handle R_PARISC_PCREL17F for $$dyncall
/usr/bin/ld: final link failed: Bad value
collect2: ld returned 1 exit status


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> $ gcc-3.2    -g -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long -fno-common  -DHAVE_CONFIG_H -o cc1 c-parse.o c-lang.o c-pretty-print.o attribs.o c-errors.o c-lex.o c-pragma.o c-decl.o c-typeck.o c-convert.o c-aux-info.o c-common.o c-opts.o c-format.o c-semantics.o c-objc-common.o c-dump.o libcpp.a  main.o libbackend.a   ../libiberty/libiberty.a
> /usr/bin/ld: libbackend.a(expr.o)(.text+0x3f744): cannot reach 000002c9_$$dyncall+0, recompile with -ffunction-sections
> /usr/bin/ld: libbackend.a(expr.o)(.text+0x3f744): cannot handle R_PARISC_PCREL17F for $$dyncall

This bug is fixed in 3.3.  The principal problem is that gcc is not keeping
track of the total number of code bytes (total_code_bytes) in a translation
unit under hppa-linux.  With GAS under hpux, this isn't necessary.

Unfortunately, the 3.2 branch is only open for regression fixes.  As far
as I know, this never worked in any previous release (debian 3.0.4 has
the same problem).  Thus, the problem won't be fixed in the 3.2 branch.

I suspect that expr.o must be getting bigger.

You can also work around this by adding -O2 to your stage1 CFLAGS.

The problems with branches that can't reach their long branch stub still
aren't fully resolved.  It's possible to exceed the maximum number of
stubs per 240000 bytes of code.  Possibly, we need to make the maximum
branch distance for the R_PARISC_PCREL17F relocation a settable option.
Currently, it is hardcoded to 240000 bytes in gcc, gas and ld.  The hpux
compiler avoids the problem by not using the "bl" instruction for external
calls.  However, GNU ld doesn't currently support the relocations needed
for the HP sequences.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Xref: news.gmane.org gmane.linux.ports.parisc:17211

> Anyone have some ideas why we have this patch in gdb, and thus relax the 
> EI_OSABI check?
> 
> --- gdb-5.2.cvs20020401/bfd/elf64-hppa.c~	Sun Mar 31 19:09:41 2002
> +++ gdb-5.2.cvs20020401/bfd/elf64-hppa.c	Sat Apr 20 09:35:54 2002
> @@ -372,7 +372,8 @@
>    i_ehdrp = elf_elfheader (abfd);
>    if (strcmp (bfd_get_target (abfd), "elf64-hppa-linux") == 0)
>      {
> -      if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX)
> +      if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX &&
> +          i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE)

well... take a look at
http://bugs.debian.org/cgi-bin/bugreport.cgi?archive=no&bug=137316

but Grant's references explain it in more detail.

randolph


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From: grundler@dsl2.external.hp.com (Grant Grundler)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] misaligned data
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Xref: news.gmane.org gmane.linux.ports.parisc:17212

Two more tidbits on the misaligned data problem in 2.5.53:
o using -g instead of -O2 compiles just fine

o The generating the warning is the "tv_add" call in sctp_pack_cookie():
	...
        /* Set an expiration time for the cookie.  */
        do_gettimeofday(&cookie->c.expiration);
        tv_add(&asoc->cookie_life, &cookie->c.expiration);
	...

But I'm under the impression the do_gettimeofday() above would puke when
trying to access the same misaligned timeval_t as well. tv_add() catches
the problem since it is a macro and code gets generated to directly
reference the struct instead of an anonymous address.

The asm output is:
...
        ldw 5144(%r8),%r19
        ldw 8(%r6),%r20
        add,l %r20,%r19,%r20
        ldd 5136(%r8),%r21
        ldd 52(%r3),%r19		# line 2347 is misaligned.
        extrd,s %r20,63,32,%r20
        add,l %r19,%r21,%r25
        ldil L'999999,%r19
        cmpb,*>= %r19,%r20,.L1873
	copy %r4,%r27

	ldil L'-1000000,%r19
	ldo 1(%r25),%r25
	ldo R'-1000000(%r19),%r19
	add,l %r20,%r19,%r20
.L1873:
	std %r25,52(%r3)		# also misaligned

Based on the math, looks like %r25 has the "seconds" field and %r19
the microseconds.

Oh, only one definition and usage of tv_add().
The offending field is "&cookie->c.expiration".
cookie is type "sctp_signed_cookie_t". (include/net/sctp/structs.h)

/* The format of our cookie that we send to our peer. */
typedef struct sctp_signed_cookie {
        __u8 signature[SCTP_SECRET_SIZE];
	sctp_cookie_t c;
} sctp_signed_cookie_t;

struct sctp_cookie mostly uses __u32 except for "struct timeval expiration".
"struct timeval" is declared in include/linux/time.h.
Not sure if it's safe to just pad "struct sctp_cookie" or if something
else needs to be done.

If this isn't a parisc toolchain bug, then other arches (eg ia64) will need 
a fix as well.

cheers,
grant


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] misaligned data
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>         ldd 52(%r3),%r19		# line 2347 is misaligned.

> 	std %r25,52(%r3)		# also misaligned
> 
> Based on the math, looks like %r25 has the "seconds" field and %r19
> the microseconds.
> 
> Oh, only one definition and usage of tv_add().
> The offending field is "&cookie->c.expiration".
> cookie is type "sctp_signed_cookie_t". (include/net/sctp/structs.h)
> 
> /* The format of our cookie that we send to our peer. */
> typedef struct sctp_signed_cookie {
>         __u8 signature[SCTP_SECRET_SIZE];
> 	sctp_cookie_t c;
> } sctp_signed_cookie_t;
> 
> struct sctp_cookie mostly uses __u32 except for "struct timeval expiration".
> "struct timeval" is declared in include/linux/time.h.
> Not sure if it's safe to just pad "struct sctp_cookie" or if something
> else needs to be done.

I'd wonder more about the packed attribute on sctp_init_chunk_t and
sctp_inithdr_t.  What version of gcc?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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------=_NextPart_001_0007_08AF000B.1A0D0022--



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Hellow!!!.

Gentlemen
I am new to this, but I have managed to install the system with the linux
2.4.18-pa32 kernel and it seems to be working; nevertheless It is impossible
to get the graphical
system to work.
Do I have to install the HIL keyboard and mouse??.
It is working with the PS/2 keyboard.
According to the xserverlog the system is unable to find the screen and the
graphical
interfase card and therefore It is not configured.
I have done which were specified in the HOWTO regarding the XF86Config-4
file,
but still I get the same answer.
The graphical interfase seems to be a part of the motherboard and I think It
is EG_something??
Are there any who has a good explanation???.
Thanks in advance.
Arne H.



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Subject: Re: [parisc-linux] Generic RTC driver in 2.4.x?
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Cc: Randolph Chung <randolph@tausq.org>,
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On Thu, 26 Dec 2002, Tom Rini wrote:
> On Tue, Dec 24, 2002 at 03:51:47PM -0800, Randolph Chung wrote:
> > > AFAIK the generic RTC driver is used on PA-RISC, PPC, and m68k.
> > > 
> > > Are you interested in a backport to 2.4.x?
> > 
> > On parisc we already have a version of the generic RTC driver in our
> > 2.4 tree. If there's something more "official" or common we can adopt
> > that version. 
> 
> Similarly, PPC has had it's own 'generic' RTC driver in the kernel for
> ages, so there's no pressing need, but if the 2.5 version makes its way
> back into 2.4 (as the 2.5 version has some minor changes needed for
> everyone which weren't in the 2.4 m68k version), we can easily switch to
> that version.

I already merged some of your 2.5.x changes with the driver in the m68k 2.4.x
tree.

I'll do some more merges, and get back to you...

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds



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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] [gcc-3_3-branch] bootstrap failure on hppa-linux
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To: Matthias Klose <doko@cs.tu-berlin.de>
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> $ gcc-3.2    -g -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long -fno-common  -DHAVE_CONFIG_H -o cc1 c-parse.o c-lang.o c-pretty-print.o attribs.o c-errors.o c-lex.o c-pragma.o c-decl.o c-typeck.o c-convert.o c-aux-info.o c-common.o c-opts.o c-format.o c-semantics.o c-objc-common.o c-dump.o libcpp.a  main.o libbackend.a   ../libiberty/libiberty.a
> /usr/bin/ld: libbackend.a(expr.o)(.text+0x3f744): cannot reach 000002c9_$$dyncall+0, recompile with -ffunction-sections
> /usr/bin/ld: libbackend.a(expr.o)(.text+0x3f744): cannot handle R_PARISC_PCREL17F for $$dyncall

I confirmed the above problem and installed the enclosed patch on the 3.2
branch to correct it.  pa_output_function_prologue is changed so that the
total number of code bytes in the translation unit is accumulated on
hppa-linux except when doing function sections.  This is a backport of
a portion of a patch previously installed on the main.

Tested on hppa-unknown-linux-gnu.  I also checked that the main will bootstrap
using gcc-3.2.

Dave

2002-12-28  John David Anglin  <dave.anglin@nrc.ca>

	* pa.h (TARGET_SOM): Define if not defined.
	* som.h (OBJ_SOM): Rename to TARGET_SOM.
	* pa.c (pa_output_function_prologue): Don't accumulate the total code
	bytes in the translation unit when using gas, som and not the portable
	runtime, or when using function sections.

Index: config/pa/pa.h
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/pa.h,v
retrieving revision 1.138.2.7.2.1
diff -u -3 -p -r1.138.2.7.2.1 pa.h
--- config/pa/pa.h	12 Dec 2002 22:37:08 -0000	1.138.2.7.2.1
+++ config/pa/pa.h	27 Dec 2002 22:48:57 -0000
@@ -159,6 +159,11 @@ extern int target_flags;
 #define TARGET_ELF32 0
 #endif
 
+/* Generate code for SOM ABI.  */
+#ifndef TARGET_SOM
+#define TARGET_SOM 0
+#endif
+
 /* Macro to define tables used to set the flags.
    This is a list in braces of pairs in braces,
    each pair being { "NAME", VALUE }
Index: config/pa/som.h
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/som.h,v
retrieving revision 1.31.2.1
diff -u -3 -p -r1.31.2.1 som.h
--- config/pa/som.h	6 Mar 2002 05:20:29 -0000	1.31.2.1
+++ config/pa/som.h	27 Dec 2002 22:48:57 -0000
@@ -19,7 +19,8 @@ the Free Software Foundation, 59 Temple 
 Boston, MA 02111-1307, USA.  */
 
 /* So we can conditionalize small amounts of code in pa.c or pa.md.  */
-#define OBJ_SOM
+#undef TARGET_SOM
+#define TARGET_SOM 1
 
 /* We do not use BINCL stabs in SOM.
    ??? If it does not hurt, we probably should to avoid useless divergence
Index: config/pa/pa.c
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/pa/pa.c,v
retrieving revision 1.148.2.7
diff -u -3 -p -r1.148.2.7 pa.c
--- config/pa/pa.c	11 Jul 2002 18:22:02 -0000	1.148.2.7
+++ config/pa/pa.c	27 Dec 2002 22:48:57 -0000
@@ -3078,9 +3078,11 @@ pa_output_function_prologue (file, size)
 
   fputs ("\n\t.ENTRY\n", file);
 
-  /* If we're using GAS and not using the portable runtime model, then
-     we don't need to accumulate the total number of code bytes.  */
-  if (TARGET_GAS && ! TARGET_PORTABLE_RUNTIME)
+  /* If we're using GAS, SOM and not the portable runtime model, or if
+     we're using function sections, then we don't need to accumulate the
+     total number of code bytes in the translation unit.  */
+  if ((TARGET_GAS && TARGET_SOM && !TARGET_PORTABLE_RUNTIME)
+      || flag_function_sections)
     total_code_bytes = 0;
   else if (INSN_ADDRESSES_SET_P ())
     {


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Arne H. Poulsen wrote:
> Hellow!!!.
> 
> Gentlemen
> I am new to this, but I have managed to install the system with the linux
> 2.4.18-pa32 kernel and it seems to be working; nevertheless It is impossible
> to get the graphical
> system to work.
> Do I have to install the HIL keyboard and mouse??.

No (there are kbd and mouse of ps2 model)

> It is working with the PS/2 keyboard.
> According to the xserverlog the system is unable to find the screen and the
> graphical
> interfase card and therefore It is not configured.
> I have done which were specified in the HOWTO regarding the XF86Config-4
> file,
> but still I get the same answer.

Which HOWTO?

> The graphical interfase seems to be a part of the motherboard and I think It
> is EG_something??
> Are there any who has a good explanation???.

If you already installed a XF86Config-4 which you can find on 
ftp.parisc-linux.org, check first if your graphic card is the buildin 
one. Then check if the default "Display Mode" match well the setup of 
your console (you can check at bootprompt> console) [on hppa the FB 
driver doesn't allow switching]

Good luck,
	Joel




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I recently purchased a SCSI bridge (4/2 A3308) thinking I could use this
with Linux but when I tried I found that it requires a driver. I can see
the MUX and all devices connected to it from an HP workstation with the
MUX driver loaded, but I'd really like to use this from Linux.

I'm wondering if anyone is working on a driver for this device and would
it work with x86 as well?

THanks, Mark.



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On Fri, Dec 27, 2002 at 09:49:18PM -0500, John David Anglin wrote:
> I'd wonder more about the packed attribute on sctp_init_chunk_t and
> sctp_inithdr_t.  What version of gcc?

sorry...I overlooked the attribute.

gcc version 3.0.4

I don't recall if I tried gcc-3.2.

thanks,
grant


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On Sat, Dec 28, 2002 at 05:24:46PM +0100, Arne H. Poulsen wrote:
> I am new to this, but I have managed to install the system with the linux
> 2.4.18-pa32 kernel and it seems to be working; nevertheless It is impossible
> to get the graphical system to work.

Hmm...Works For Me (tm). Try the kernels/config files on
	ftp://ftp.parisc-linux.org/kernels/b180

They should work the same if you are using the B132L built-in graphics.

grant


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On Sun, Dec 29, 2002 at 04:02:38PM -0500, Mark R. Buechler wrote:
> I recently purchased a SCSI bridge (4/2 A3308) thinking I could use this
> with Linux but when I tried I found that it requires a driver. I can see
> the MUX and all devices connected to it from an HP workstation with the
> MUX driver loaded, but I'd really like to use this from Linux.

uhm...did you check to see which utilities you might need to manage
and configure the FC/SCSI mux?
http://www.software.hp.com/products/FCMAN/fcm3over.html

BTW, The A3308 usermanual (A3308-96011) is available here:
	http://www.software.hp.com/products/FCMAN/pdf/96011.pdf

> I'm wondering if anyone is working on a driver for this device and would
> it work with x86 as well?

The main FC HBA vendors (except Agilent?) seem to work fine on both x86 and
ia64 (HP ZX1, near cousin to HP PARISC platforms). I would expect them
to work fine on i386/parisc-linux too. I've only had time to play with
Agilent based (tachlite 5100/5166/5200 series) HBAs on parisc.

AFAICT, "FC 4/2 MUX" is only supported under HPUX.
I get the impression one would need to heavily modify an existing
FC driver in order to support the MUX functionality. But I don't
know how the A3308 presents SCSI devices and that will make/break
the support story.

hth,
grant


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On Fri, Dec 27, 2002 at 09:49:18PM -0500, John David Anglin wrote:
...
> > Not sure if it's safe to just pad "struct sctp_cookie" or if something
> > else needs to be done.
> 
> I'd wonder more about the packed attribute on sctp_init_chunk_t and
> sctp_inithdr_t.

I think that's the problem.

I've wimped out and just disabled CONFIG_IP_SCTP.
I really want to chase final problems with 2.4 and get $#@&% XF86
working on the OB600CT again (yes, XF86 4.0 worked, 4.2 does not :^( )


> What version of gcc?

In reflecting on it a bit more, I'm pretty sure I tried gcc-3.2
and came to the same result.
("gcc version 3.2.2 20021212 (Debian prerelease)")

grant



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Configuring the MUX isn't a problem. What I'd like to do is access the SCSI
devices connected to the MUX from Linux. From a Linux host I see the MUX as
a single target. I wouldn't think any changes would be necessary for the FC
driver but rather a separate driver would exist that scans for the MUX and
uses the Linux sg driver to communicate with it.

I've found mention of a SCSI/MUX driver on this mailing list in the archives
but I don't know what MUX they were referring to.

- Mark.

-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Grant
Grundler
Sent: Monday, December 30, 2002 1:45 AM
To: Mark R. Buechler
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] A3308 fibre SCSI bridge support


On Sun, Dec 29, 2002 at 04:02:38PM -0500, Mark R. Buechler wrote:
> I recently purchased a SCSI bridge (4/2 A3308) thinking I could use this
> with Linux but when I tried I found that it requires a driver. I can see
> the MUX and all devices connected to it from an HP workstation with the
> MUX driver loaded, but I'd really like to use this from Linux.

uhm...did you check to see which utilities you might need to manage
and configure the FC/SCSI mux?
http://www.software.hp.com/products/FCMAN/fcm3over.html

BTW, The A3308 usermanual (A3308-96011) is available here:
	http://www.software.hp.com/products/FCMAN/pdf/96011.pdf

> I'm wondering if anyone is working on a driver for this device and would
> it work with x86 as well?

The main FC HBA vendors (except Agilent?) seem to work fine on both x86 and
ia64 (HP ZX1, near cousin to HP PARISC platforms). I would expect them
to work fine on i386/parisc-linux too. I've only had time to play with
Agilent based (tachlite 5100/5166/5200 series) HBAs on parisc.

AFAICT, "FC 4/2 MUX" is only supported under HPUX.
I get the impression one would need to heavily modify an existing
FC driver in order to support the MUX functionality. But I don't
know how the A3308 presents SCSI devices and that will make/break
the support story.

hth,
grant
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On Mon, Dec 30, 2002 at 10:13:24AM -0500, Buechler, Mark R wrote:
> Configuring the MUX isn't a problem.

ok.

> What I'd like to do is access the SCSI
> devices connected to the MUX from Linux. From a Linux host I see the MUX as
> a single target.

Can you copy the output here?
I'm curious how it's reported.

> I wouldn't think any changes would be necessary for the FC
> driver but rather a separate driver would exist that scans for the MUX and
> uses the Linux sg driver to communicate with it.

the sg driver is a passthru interface and doesn't present a "random
access mass storage device" view. sg would be used to configure
the MUX and sd to access the devices behind it.

My point was the existing FC interface drivers already present FC
storage devices (eg disks or arrays) via "sd" driver and don't know how
to talk to devices that aren't "transperent" (ie invisible nodes in the
FC fabric).


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Xref: news.gmane.org gmane.linux.ports.parisc:17226

The only place it shows up is in /proc/scsi/qla2200/1. The target id is 18
(WWN: 50060b000005cc76 I assume since it starts with "50").

-------------------------------------------------------------

QLogic PCI to Fibre Channel Host Adapter for ISP22xx:
        Firmware version:  2.02.03, Driver version 6.01.00
Entry address = c481a060
HBA: QLA2200 , Serial# B56623
Request Queue = 0x3a2c000, Response Queue = 0x3a34000
Request Queue count= 128, Response Queue count= 64
Total number of active commands = 0
Total number of interrupts = 80
Total number of IOCBs (used/max) = (0/600)
Total number of queued commands = 0
    Device queue depth = 0x10
Number of free request entries = 47
Number of mailbox timeouts = 0
Number of ISP aborts = 0
Number of loop resyncs = 0
Number of retries for empty slots = 0
Number of reqs in pending_q= 0, retry_q= 0, done_q= 0, scsi_retry_q= 0
Host adapter:loop state= <READY>, flags= 0x8a0a13
Dpc flags = 0x0
MBX flags = 0x0
SRB Free Count = 4096
Port down retry = 008


SCSI Device Information:
scsi-qla1-adapter-node=200000e08b22cf63;
scsi-qla1-adapter-port=210000e08b22cf63;
scsi-qla1-target-0=20000060b02ac26c;
scsi-qla1-target-1=2100002037843e57;
scsi-qla1-target-2=21000020378437c0;
scsi-qla1-target-3=21000004cf0ef21a;
scsi-qla1-target-4=21000004cf2248d0;
scsi-qla1-target-5=210000203784354b;
scsi-qla1-target-6=2100002037669132;
scsi-qla1-target-7=2100002037843560;
scsi-qla1-target-8=2100002037843cd9;
scsi-qla1-target-9=50060b000005d7b3;
scsi-qla1-target-10=210000203784498c;
scsi-qla1-target-11=21000004cf1b3830;
scsi-qla1-target-12=21000004cf2250b5;
scsi-qla1-target-13=2100002037843e36;
scsi-qla1-target-14=2100002037e7184c;
scsi-qla1-target-15=2100002037843c3c;
scsi-qla1-target-16=210000203766907b;
scsi-qla1-target-17=21000020371ac091;
scsi-qla1-target-18=50060b000005cc76;

SCSI LUN Information:
(Id:Lun)
( 1: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:02,
( 2: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:03,
( 3: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:04,
( 4: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:05,
( 5: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:06,
( 6: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:07,
( 7: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:08,
( 8: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:09,
(10: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:0c,
(11: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:0d,
(12: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:0e,
(13: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:0f,
(14: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:10,
(15: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:11,
(16: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:12,
(17: 0): Total reqs 5, Pending reqs 0, flags 0x0, 1:0:13,

-----Original Message-----
From: grundler@dsl2.external.hp.com
[mailto:grundler@dsl2.external.hp.com]
Sent: Monday, December 30, 2002 2:44 PM
To: Buechler, Mark R
Cc: 'parisc-linux@lists.parisc-linux.org'
Subject: Re: [parisc-linux] A3308 fibre SCSI bridge support


On Mon, Dec 30, 2002 at 10:13:24AM -0500, Buechler, Mark R wrote:
> Configuring the MUX isn't a problem.

ok.

> What I'd like to do is access the SCSI
> devices connected to the MUX from Linux. From a Linux host I see the MUX
as
> a single target.

Can you copy the output here?
I'm curious how it's reported.

> I wouldn't think any changes would be necessary for the FC
> driver but rather a separate driver would exist that scans for the MUX and
> uses the Linux sg driver to communicate with it.

the sg driver is a passthru interface and doesn't present a "random
access mass storage device" view. sg would be used to configure
the MUX and sd to access the devices behind it.

My point was the existing FC interface drivers already present FC
storage devices (eg disks or arrays) via "sd" driver and don't know how
to talk to devices that aren't "transperent" (ie invisible nodes in the
FC fabric).










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Subject: [parisc-linux] Happy new Year !!!!  --X-PCs.de--
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Ein gutes und erfolgreiches Jahr wuenscht ihnen X-PCs=2Ede !!!

Fur alle Schnappchen-Jager :
##############################################
# X-PCs gibt ab 20=2E01=2E03  10% Rabatt auf alle Rechner  #
##############################################

Fur alle Gewinner:
##############################################
# X-PCs=2Ede und PC-Broken=2Ede veranstalten vom 24=2E01   #
# bis zum 24=2E02 das Happy New Year Gewinnspiel mit  #
# Preisen im Wert von 30=2E000 ? !!   -Viel Glueck                #
##############################################


www=2EX-PCs=2Ede
www=2EPC-Broken=2Ede
www=2Eringadinga=2Ede
www=2Enova-artworks=2Ede




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> > I'd wonder more about the packed attribute on sctp_init_chunk_t and
> > sctp_inithdr_t.
> 
> I think that's the problem.

I am not aware of any specific code in the backend related to the
handling of packed structures.  So, this is likely a generic problem,
maybe on big endian machines.

> > What version of gcc?
> 
> In reflecting on it a bit more, I'm pretty sure I tried gcc-3.2
> and came to the same result.
> ("gcc version 3.2.2 20021212 (Debian prerelease)")

There are some fixes in the passing of small structs in 3.3 (less
than 8 bytes).  This affects varargs and library functions that
pass small structs by value.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Russell King <rmk@arm.linux.org.uk>
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Hi,

This mail is being copied to the XFS and PARISC mailing lists.  You should
probably trim the reply list as appropriate.

I've just been looking over the state of the ARM {dma,pci}_alloc_consistent
wrt interrupts etc in 2.5.53, and decided to have a look around this area
for other users.  I stumbled across the following unsafe areas.

a) parisc.  Looking at pa11_dma_alloc_consistent:

   pa11_dma_alloc_consistent
	-> map_uncached_pages
		-> (eventually) map_pmd_uncached
			-> pte_alloc_kernel
				-> pte_alloc_one_kernel

	static inline pte_t *
	pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
	{
	        pte_t *pte = (pte_t *) __get_free_page(GFP_KERNEL);
        	if (likely(pte != NULL))
	                clear_page(pte);
        	return pte;
	}

   End result is that if pa11_dma_alloc_consistent() is called from
   IRQ context, parisc calls __get_free_page using GFP_KERNEL.
   Calling __get_free_page with GFP_KERNEL from IRQ context appears
   to be unsafe (always has been.)

b) xfs. XFS contains this bit of code:

	static __inline unsigned int flag_convert(int flags)
	{
		...
	        if (flags & KM_NOSLEEP)
        	        return GFP_ATOMIC;
	        /* If we're in a transaction, FS activity is not ok */
        	else if ((current->flags & PF_FSTRANS) || (flags & KM_NOFS))
	                return GFP_NOFS;
        	else
	                return GFP_KERNEL;
	}

	void *kmem_alloc(size_t size, int flags)
	{
		...
                rval = __vmalloc(size, flag_convert(flags), PAGE_KERNEL);
		...
	}

   Ok, so xfs can pass GFP_ATOMIC, GFP_NOFS and GFP_KERNEL to __vmalloc.
   However, do these flags actually ensure what they suggest they do?

   Lets look at __vmalloc:

	void *__vmalloc(unsigned long size, int gfp_mask, pgprot_t prot)
	{
		...
        	area = get_vm_area(size, VM_ALLOC);
		...
	}

   and get_vm_area:

	struct vm_struct *get_vm_area(unsigned long size, unsigned long flags)
	{
		...
        	area = kmalloc(sizeof(*area), GFP_KERNEL);
		...
	}

   Also, look at the PMD and PTE allocation functions, which also use
   GFP_KERNEL.

   Answer to the above question: no.  Is this unsafe?  Probably.

Now, what does this all have to do with ARM and pci_alloc_consistent.
It's the same problem, only I have a BUG_ON() in there to catch uses
from IRQ context, which needs to disappear eventually.  (This is
mainly a requirement for USB to work.)

However, before this can happen, I believe I'd need the following:

1. allocation of vm areas (via get_vm_area and friends) needs to become
   IRQ-safe.

   - vmlist_lock needs to become IRQ safe (but its held during vread/vwrite)
   - kmalloc of vm_structs needs to have gfp flags passed in

2. allocation of page tables (via pmd_alloc_kernel / pte_alloc_kernel)
   needs to become IRQ-safe.

   - pmd_alloc_kernel / pte_alloc_kernel needs to have gfp flags passed in
   - map_vm_area would also need gfp flags

The same solution also fixes the two instances described above.

I suspect, however, that the vmlist_lock change will be unacceptable
to many people however.  This doesn't affect XFS nor parisc, but would
mean that I'd need to completely rewrite the ARM consistent memory
allocation to use none of the above (which I think is the right
approach, but means _all_ of the above becomes S.E.P. 8))

-- 
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html



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> I've just been looking over the state of the ARM {dma,pci}_alloc_consis
> tent wrt interrupts etc in 2.5.53, and decided to have a look around
> this area for other users.  I stumbled across the following unsafe
> areas.

> a) parisc.  Looking at pa11_dma_alloc_consistent:

I agree with the flow analysis.  However, there is a condition attached to 
getting from pte_alloc_kernel to pte_alloc_one_kernel which makes the 
GFP_KERNEL allocation.  That condition looks to be that the pmd is not 
present.  I don't believe that's possible for an area of memory we just got 
from __get_free_pages (otherwise the kernel could fault when accessing that 
region which isn't allowed).

If the above analysis is correct (which I'll defer to better opinion) then we 
can in practice never get down the problem path, and dma_ allocation from 
interrupt is safe on parisc.

James




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Hi all,

kernel module support for the 2.5 kernel on hppa seems broken due to some missing 
support for this architecture in the new modutils and module-init-tools debian packages.

Maybe someone with somewhat more expirience than me with the ELF file format and 
runtime symbol relocation functions could look into this ? 

Thanks,
Helge


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Has there been any change in the support for the D-Class machines with an 
Access Port card?
I'm not sure I understand what's happening when the AP card is inserted. If 
I boot into the PDC I get the console on Serial 1. If I boot with my 
console plugged into the AP card serial port I get nada! When I plug my 
console into Serial 2 I also get zip!
If I boot with the console in Serial 1, output stops at the famous 
"branching to" message.

Must the AP card be removed for useful o[peration?

Regards, Herb



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From: grundler@dsl2.external.hp.com (Grant Grundler)
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On Wed, Jan 01, 2003 at 09:49:33PM +0000, Russell King wrote:
> a) parisc.  Looking at pa11_dma_alloc_consistent:

If James is wrong and it's un-safe to call dma_alloc_consistent() on
the interrupt path, I'm only slightly worried since I've only seen
dma_alloc_consistent() get called during driver initialization.
DMA-mapping.txt does not restrict what context "driver initialization"
might take place in.

grant


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From: p2@mind.be (Peter 'p2' De Schrijver)
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Subject: [parisc-linux] Matrox Millenium II in C240
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--fUYQa+Pmc3FrFX/N
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Hi,

I installed a matrox millenium 2 in my C240 box and try to get the
framebuffer device for it to work under linux. Unfortunately I get a
kernel panic at the first access to mmio space of the card. The card
resides in a 32bit PCI slot (it's a 5V only card, so it has to). I get
the impression there is something wrong with the resource assignment of
the card. Unfortunately I'm stuck at this point, since I don't have a
clear view on how all the busses in this system are interconnected and
which bus address translations are happening. Is this somewhere
documented ? Has anyone before succeeded in accessing mmio space of PCI
card attached to the 32bit PCI bus of the C240 ?

Thanks,

Peter.

--fUYQa+Pmc3FrFX/N
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=lspci-output

00:01.0 VGA compatible controller: Matrox Graphics, Inc. MGA 2164W [Millennium II] (prog-if 00 [VGA])
	Subsystem: Matrox Graphics, Inc.: Unknown device 2003
	Flags: medium devsel, IRQ 97
	Memory at f9000000 (32-bit, prefetchable) [size=16M]
	Memory at f3ffc000 (32-bit, non-prefetchable) [size=16K]
	Memory at f2800000 (32-bit, non-prefetchable) [size=8M]
	Expansion ROM at f3f80000 [disabled] [size=64K]

00:13.0 SCSI storage controller: LSI Logic / Symbios Logic (formerly NCR) 53c875 (rev 04)
	Flags: bus master, medium devsel, latency 255, IRQ 99
	I/O ports at fe00 [size=256]
	Memory at f3ff9000 (32-bit, non-prefetchable) [size=256]
	Memory at f3ffa000 (32-bit, non-prefetchable) [size=4K]

00:14.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
	Subsystem: Hewlett-Packard Company: Unknown device 104f
	Flags: bus master, medium devsel, latency 255, IRQ 96
	I/O ports at ff00 [size=128]
	Memory at f3ffb000 (32-bit, non-prefetchable) [size=1K]
	Expansion ROM at f3f80000 [disabled] [size=256K]

01:02.0 Ethernet controller: Netgear GA620 (rev 01)
	Subsystem: Netgear: Unknown device 0001
	Flags: fast Back2Back, 66Mhz, medium devsel, IRQ 130
	Memory at f1ffc000 (32-bit, non-prefetchable) [disabled] [size=16K]

01:04.0 Display controller: Hewlett-Packard Company: Unknown device 1008 (rev 02)
	Flags: 66Mhz, medium devsel, IRQ 128
	Memory at f6000000 (64-bit, non-prefetchable) [size=32M]
	Expansion ROM at f1c00000 [disabled] [size=2M]


--fUYQa+Pmc3FrFX/N--


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Subject: [parisc-linux] squid-2.xx dpkg failled to fork on pl (follow up)
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Hi all,

This small mail to mentionned that I reach to make squid operational on
a linux-2.4.20-pa17 thanks to the following tips:

in debian rules replace statement
    ac_cv_func_setresuid=3Dno \
by 
    ac_cv_func_setresuid=3Dyes \

so that function leave_suid() [into src/tools.c] will use setresuid() in
place of seteuid() before launch fork(). 

Is it a know problem on palinux?

Greetings,
    Joel


********************************************
Promo Tiscali ADSL: 35 Euros/mois, 1er mois et activation =3D 0 Euro http=
://adsl.tiscali.be





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Herb Radford <herbr@magma.ca> writes:

> Has there been any change in the support for the D-Class machines with
> an Access Port card?
> I'm not sure I understand what's happening when the AP card is
> inserted. If I boot into the PDC I get the console on Serial 1. If I
> boot with my console plugged into the AP card serial port I get nada!
> When I plug my console into Serial 2 I also get zip!
> If I boot with the console in Serial 1, output stops at the famous
> "branching to" message.
>
> Must the AP card be removed for useful o[peration?

Thats how I did it for my D390 and after that it works fine. Also,
you can do the "switch to serial 2 after the branching point" dance..

Also, so that others know, with the current (as in 2.4.20) kernels
(which fixed some unaligned access issues, I believe), the machine
works just fine on 32-bit SMP.

-- 
Arto Jantunen


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: Re: [parisc-linux] Matrox Millenium II in C240
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On Thu, Jan 02, 2003 at 01:38:56PM +0100, Peter 'p2' De Schrijver wrote:
> I installed a matrox millenium 2 in my C240 box and try to get the
> framebuffer device for it to work under linux. Unfortunately I get a
> kernel panic at the first access to mmio space of the card.

Sounds like a driver problem.

> The card resides in a 32bit PCI slot (it's a 5V only card, so it has to).

Does it? are the 64-bit slots 3.3v only?
I've never had to pay much attention for how the slots are keyed
since I mostly use "universal" PCI cards (both 3.3 and 5v tolerant).

> I get
> the impression there is something wrong with the resource assignment of
> the card.

Doesn't look like it to me based on lspci output.

> Is this somewhere documented ?

hmm...sort of in the ioscan output in the HW DB.
Or look at the hw paths printed at boot time.

> Has anyone before succeeded in accessing mmio space of PCI
> card attached to the 32bit PCI bus of the C240 ?

SCSI is accessed that way. tulip driver can be tweaked to use MMIO
if you don't have any 100BT GSC (card-mode Dino) cards.

> 00:01.0 VGA compatible controller: Matrox Graphics, Inc. MGA 2164W [Millennium II] (prog-if 00 [VGA])
> 	Subsystem: Matrox Graphics, Inc.: Unknown device 2003
> 	Flags: medium devsel, IRQ 97
> 	Memory at f9000000 (32-bit, prefetchable) [size=16M]
> 	Memory at f3ffc000 (32-bit, non-prefetchable) [size=16K]
> 	Memory at f2800000 (32-bit, non-prefetchable) [size=8M]
> 	Expansion ROM at f3f80000 [disabled] [size=64K]

Looks like PDC/IODC did it's thing.
Look at matrox drivers to make sure they are calling
"pci_device_enable()" and ioremap() before attempting to access
the device.

Check /proc/iomem to see which PCI bus controller
this is getting routed through and that the system
has correctly identified the MMIO resources.

It's interesting one device has MMIO at both 0xf2800000
and 0xf9000000 since it would imply one PCI controller is supposed
to forward the entire range of addresses. But Dino only forwards
(any number of) 8MB chunks between 0xf0800000 and 0xff800000 (except
the first and last 8MB chunks).

> 01:04.0 Display controller: Hewlett-Packard Company: Unknown device 1008 (rev 02)
> 	Flags: 66Mhz, medium devsel, IRQ 128
> 	Memory at f6000000 (64-bit, non-prefetchable) [size=32M]
> 	Expansion ROM at f1c00000 [disabled] [size=2M]

similar scenario but this device forces both PCI bus controllers
to "interleave" MMIO ranges they respond to. Looks ok though.

grant


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From: Christian Suder <csuder@cisco.com>
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Subject: [parisc-linux] C180 appears to hang booting current kernels
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Xref: news.gmane.org gmane.linux.ports.parisc:17238

Quick question,

I have a C180 running 2.4.19-pa9 just fine. However recent 2.4 kernels
hang, or appear to hang (I'm not the patient type...;-) after the
"branching to kernel entry...." The heartbeat LED slowly blinks two times
every 10 seconds or so, I've been waiting maybe 5 minutes. 

I found some discussion on this back in November, it's not quite clear if
the discussed changes were ever made. 

Any hope ?

	Thx,
	Christian 


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Subject: Re: [parisc-linux] C180 appears to hang booting current kernels
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On Thu, Jan 02, 2003 at 10:07:03PM -0800, Christian Suder wrote:
> I have a C180 running 2.4.19-pa9 just fine. However recent 2.4 kernels
> hang, or appear to hang (I'm not the patient type...;-) after the
> "branching to kernel entry...." The heartbeat LED slowly blinks two times
> every 10 seconds or so, I've been waiting maybe 5 minutes. 
> 
> I found some discussion on this back in November, it's not quite clear if
> the discussed changes were ever made. 
> 
> Any hope ?

Just be patient. It takes as long as 30 minutes to work it's way through
some tests. There is a fix for this, but it may take a while to trickle
down to testing and stable users. I'm sure others can answers this in
more depth. I was worried for my C180 for a while, too.

-- 
chris jantzen kb7rnl =->         __O
Insert witty comment here.     _`\<,_
http://www.maybe.net/         (*)/ (*)


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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] C180 appears to hang booting current kernels
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This looks like my bad.

Willy and I worked on a solution for this problem, and I committed the
fix to the linux-2.5 tree.  I have this change also in my local 
linux 2.4 tree, but it does not appear that I committed it to CVS.

I appologize for this and will try to find time to update my local tree,
verify it still works, and then commit this change over the weekend!

Thanks,

- Ryan




On Thu, 2003-01-02 at 23:46, Chris Jantzen wrote:
> On Thu, Jan 02, 2003 at 10:07:03PM -0800, Christian Suder wrote:
> > I have a C180 running 2.4.19-pa9 just fine. However recent 2.4 kernels
> > hang, or appear to hang (I'm not the patient type...;-) after the
> > "branching to kernel entry...." The heartbeat LED slowly blinks two times
> > every 10 seconds or so, I've been waiting maybe 5 minutes. 
> > 
> > I found some discussion on this back in November, it's not quite clear if
> > the discussed changes were ever made. 
> > 
> > Any hope ?
> 
> Just be patient. It takes as long as 30 minutes to work it's way through
> some tests. There is a fix for this, but it may take a while to trickle
> down to testing and stable users. I'm sure others can answers this in
> more depth. I was worried for my C180 for a while, too.
> 
> -- 
> chris jantzen kb7rnl =->         __O
> Insert witty comment here.     _`\<,_
> http://www.maybe.net/         (*)/ (*)
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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Subject: [parisc-linux] New year, new try : Mozilla & friends...
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Xref: news.gmane.org gmane.linux.ports.parisc:17241

Hello everybody,

I apologize in advance for bringing up this topic again, I'm just a user
who wants a good web browser... ;-) 

Mozilla/skipstone/galeon are part of the distribution (even in 'stable')
for a while now, but crash straightaway with page faults. 

Has anybody ever looked into where the problems here are ? There is a
couple of other applications that have issues too, that may or may not be
related. Dillo e.g. (which by far is not as feature rich as the others)
needs to be started a number of times until the DNS thread works. Sylpheed
and pan start on a local display, but not on a remote display (strace
shows it loops forever somewhere). 

The browser situation is quite a bummer, I think, because the machines
would be much more useable for "general use". Otherwise the port is
excellent in terms of stability and hardware support achieved so far.
Great work !

Thx,
	Christian 


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Thanks Ryan !

I'll stay tuned..... 

	Christian 


On 03 Jan 2003 00:01:51 -0700
Ryan Bradetich <rbradetich@uswest.net> wrote:

> This looks like my bad.
> 
> Willy and I worked on a solution for this problem, and I committed the
> fix to the linux-2.5 tree.  I have this change also in my local 
> linux 2.4 tree, but it does not appear that I committed it to CVS.
> 
> I appologize for this and will try to find time to update my local tree,
> verify it still works, and then commit this change over the weekend!
> 
> Thanks,
> 
> - Ryan
> 
> 
> 
> 
> On Thu, 2003-01-02 at 23:46, Chris Jantzen wrote:
> > On Thu, Jan 02, 2003 at 10:07:03PM -0800, Christian Suder wrote:
> > > I have a C180 running 2.4.19-pa9 just fine. However recent 2.4
> > > kernels hang, or appear to hang (I'm not the patient type...;-)
> > > after the"branching to kernel entry...." The heartbeat LED slowly
> > > blinks two times every 10 seconds or so, I've been waiting maybe 5
> > > minutes. 
> > > 
> > > I found some discussion on this back in November, it's not quite
> > > clear if the discussed changes were ever made. 
> > > 
> > > Any hope ?
> > 
> > Just be patient. It takes as long as 30 minutes to work it's way
> > through some tests. There is a fix for this, but it may take a while
> > to trickle down to testing and stable users. I'm sure others can
> > answers this in more depth. I was worried for my C180 for a while,
> > too.
> > 
> > -- 
> > chris jantzen kb7rnl =->         __O
> > Insert witty comment here.     _`\<,_
> > http://www.maybe.net/         (*)/ (*)
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> 
> 


From - Thu Nov 08 21:26:07 2018
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From: Thibaut VARENE <varenet@parisc-linux.org>
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Subject: Re: [parisc-linux] New year, new try : Mozilla & friends...
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On Thu, 2 Jan 2003 23:07:05 -0800
"Christian Suder" <csuder@cisco.com> wrote:
> 
> Mozilla/skipstone/galeon are part of the distribution (even in 'stable')
> for a while now, but crash straightaway with page faults. 
> 
> Has anybody ever looked into where the problems here are ? There is a
> couple of other applications that have issues too, that may or may not be

Well, it's an old "feature" of hppa platform ;)

IIRC, all these problems are compiler-related stuff. Maybe with the new toolchain we will get rid of them...

/me pokes at toolchain-gurus for advice :^)


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] Preparation of Boot-Floppies release 3.0.24, testers wanted
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There will be a new boot-floppies release for woody 3.0r2; I've built
CVS head, using kernel 2.4.19 from unstable, and tested on B180 serial
and graphical console, 715 serial console, and C360 serial and graphical
console.  Would be good if someone else could test, especially on 64
bit, as I am not able to do that at the moment.

Available at <http://people.debian.org/~blade/bf3024/>

Thanks,
  Richard

On Wed, Dec 18, 2002 at 07:55:46PM +0100, Eduard Bloch wrote:
> ( first semi-official call-for-helpers, see also:
> http://people.debian.org/~blade/bf3024/ )
> 
> Preparation of Boot-Floppies release 3.0.24
> ===========================================
> 
> I volunteered to prepare the next release of Debian's Boot-Floppies
> tree. The next release of Debian Woody, 3.0r2 was planned for about two
> months after r1, so we have at least this period from now. There are
> known outstanding problems that will be fixed in Woody by this release:
>  
>  - potential security risks using old kernel versions
>  - miscellaneous glitches on m68k
>  - outdated kernel on i386, not supporting large harddisks
>  - various bugfixes on s390
>  - and many others, including better documentation
> 
> So my prefered schedule is:
> 
>  - everyone responsible for a certain architecture should update to
>    latest CVS HEAD and make test builds (one week)
>  - Test builds are distributed for testing, netinst images are created,
>    announcing on DP, DWN, etc. (2 weeks)
>  - Final release, buildin on all architectures and uploading
> 
> Since we are building for 11 architectures this time, I prefer having a
> bit more coordination: http://people.debian.org/~blade/bf3024/ will
> contain a simple overview and links to testing builds.
> 
> So, my fellow b-f developers, come out whereever you are, spend few
> hours[1], report problems and fix them where needed. You know the rules.
> 
>  - Do not break stuff intentionaly
>  - Do not risc changing something if you cannot predict the consequences
>  - Build in a Woody chroot ("debootstrap" helps), do not risc messing up
>    something because of Sid's problem of the day.
> 
> When I have spare time, I will hang around on the #debian-boot on
> Freenode network. If there is no reaction from me, better send an /msg.
> 
> Happy Hacking,
> Eduard.
> -- 
> User Error: replace user and press any key to continue.
> 
> 
> -- 
> To UNSUBSCRIBE, email to debian-boot-request@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org


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Subject: [parisc-linux] B1000 Debian 3.0r1 High-Priority Machine Check
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This is a multi-part message in MIME format.

------=_NextPart_000_001C_01C2B331.415DC930
Content-Type: text/plain;
	charset="us-ascii"
Content-Transfer-Encoding: 7bit

I booted the Debian 3.0r1 CD 1 on my generic B1000 and it crashed.  The
problem does not occur when booting with serial console, only when using
the graphics console (A4977A Visualize EG).

The last two lines of output:

	init started:  BusyBox v0.60.3-pre (2002.01.21-23:29+0000)
multi-call binary
	High-Priority Machine Check (HPMC): Code=1 regs=102f3080
(Addr=00000000)

The front panel LCD says: FLT CBFB4.17-32

I've attached a boot log from using the serial console, and the "ser
pim" info.

------=_NextPart_000_001C_01C2B331.415DC930
Content-Type: text/plain;
	name="serPim.txt"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="serPim.txt"

Firmware Version 5.0=0A=
=0A=
Duplex Console IO Dependent Code (IODC) revision 1=0A=
=0A=
-------------------------------------------------------------------------=
-----=0A=
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved=0A=
-------------------------------------------------------------------------=
-----=0A=
=0A=
  Processor   Speed            State           Coprocessor State  I/D =
Cache =0A=
  ---------  --------   ---------------------  -----------------  =
-------------=0A=
      0      300 MHz    Active                 Functional         512 =
kB/1 MB=0A=
=0A=
  Central Bus Speed:                   120 MHz=0A=
=0A=
  Available memory:              536870912 bytes=0A=
  Good memory required:           44978176 bytes=0A=
=0A=
  Primary boot path:    FWSCSI.6.0=0A=
  Alternate boot path:  SCSI.6.0=0A=
  Console path:         GRAPHICS(2)=0A=
  Keyboard path:        USB=0A=
=0A=
CPU 0=0A=
NOTICE :  Processor self-tests have been disabled because FASTBOOT is=0A=
          enabled.  To enable self-tests, disable FASTBOOT with the =
FASTBOOT=0A=
          command in the CONFIGURATION menu and reboot the system.=0A=
NOTICE :  Memory has been initialized but not tested because FASTBOOT is=0A=
          enabled.  To test memory, disable FASTBOOT with the FASTBOOT=0A=
          command in the CONFIGURATION menu and reboot the system.=0A=
=0A=
=0A=
Processor is booting from first available device.=0A=
=0A=
To discontinue, press any key within 10 seconds.=0A=
=0A=
=07Boot terminated.=0A=
=0A=
=0A=
----- Main Menu =
-------------------------------------------------------------=0A=
=0A=
      Command                           Description=0A=
      -------                           -----------=0A=
      BOot [PRI|ALT|<path>]             Boot from specified path=0A=
      PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path=0A=
      SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices=0A=
=0A=
      COnfiguration [<command>]         Access Configuration =
menu/commands=0A=
      INformation [<command>]           Access Information menu/commands=0A=
      SERvice [<command>]               Access Service menu/commands=0A=
=0A=
      DIsplay                           Redisplay the current menu=0A=
      HElp [<menu>|<command>]           Display help for menu or command=0A=
      RESET                             Restart the system=0A=
-----=0A=
Main Menu: Enter command > ser=0A=
=0A=
----- Service Menu =
----------------------------------------------------------=0A=
=0A=
      Command                           Description=0A=
      -------                           -----------=0A=
      ChassisCodes [<proc>|ON|OFF]      Display/enable/disable chassis =
codes=0A=
      CLEARPIM                          Clear (zero) the contents of PIM=0A=
      EepromRead [<addr> [<len>]]       Read EEPROM locations=0A=
      MemRead <addr> [<len>] [<type>]   Read memory locations=0A=
      PciDelay [<value>]                Display or set PCI delay value=0A=
      PDT [CLEAR]                       Display or clear=0A=
                                        the Page Deallocation Table=0A=
      PIM [<proc>] [HPMC|LPMC|TOC]      Display PIM information=0A=
      RemotePower [ON|OFF]              Display/enable/disable remote =
power=0A=
      ScRoll [ON|OFF]                   Display or change scrolling =
ability=0A=
=0A=
      BOot [PRI|ALT|<path>]             Boot from specified path=0A=
      DIsplay                           Redisplay the current menu=0A=
      HElp [<menu>|<command>]           Display help for menu or command=0A=
      RESET                             Restart the system=0A=
      MAin                              Return to Main menu=0A=
-----=0A=
Service Menu: Enter command > pim=0A=
=0A=
PROCESSOR PIM INFORMATION=0A=
=0A=
-----------------  Processor 0 HPMC Information ------------------=0A=
=0A=
Timestamp =3D =0A=
  Fri Jan  3 21:45:13 GMT 2003    (20:03:01:03:21:45:13)=0A=
=0A=
HPMC Chassis Codes =3D 2cbf0  2500b  2cbfb  =0A=
=0A=
General Registers 0 - 31=0A=
00-03   0000000000000000  0000000000029a90  0000000000000008  =
00000000401d3000=0A=
04-07   0000000000000000  0000000000000000  0000000000000007  =
0000000000000001=0A=
08-11   0000000000000010  0000000000000001  00000000faf005d0  =
0000000000000010=0A=
12-15   0000000000029a90  0000000000000000  0000000000029a90  =
0000000000000000=0A=
16-19   000000000002b010  0000000000029a90  0000000000029a90  =
00000000401d3000=0A=
20-23   0000000000000000  0000000000000000  000000000000001c  =
0000000000000000=0A=
24-27   0000000000000000  0000000000000000  0000000000000000  =
0000000000029a90=0A=
28-31   0000000000000008  0000000000000000  00000000faf00700  =
0000000000000000=0A=
=0A=
<Press any key to continue (q to quit)> =0A=
=0A=
Control Registers 0 - 31=0A=
00-03   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
04-07   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
08-11   0000000000000222  0000000000000000  00000000000000c0  =
000000000000001e=0A=
12-15   0000000000000000  0000000000000000  0000000000105000  =
00000000ffffffff=0A=
16-19   0000000599cc5e0b  0000000000000111  000000000001555f  =
000000000e661200=0A=
20-23   00000000100403ec  40000000001d3000  00000000000cff0f  =
0000000000000000=0A=
24-27   000000000030b000  000000001f117000  00000000ffffffff  =
00000000ffffffff=0A=
28-31   00000000ffffffff  00000000ffffffff  000000002f118000  =
00000000103a0000=0A=
Space Registers 0 - 7=0A=
=0A=
00-03   00000111          00000111          00000000          00000111=0A=
04-07   00000111          00000111          00000111          00000111=0A=
=0A=
<Press any key to continue (q to quit)> =0A=
=0A=
IIA Space                    =3D 0x0000000000000111=0A=
IIA Offset                   =3D 0x00000000000151b3=0A=
Check Type                   =3D 0x20000000=0A=
CPU State                    =3D 0x9e000004=0A=
Cache Check                  =3D 0x00000000=0A=
TLB Check                    =3D 0x00000000=0A=
Bus Check                    =3D 0x003010bb=0A=
Assists Check                =3D 0x00000000=0A=
Assist State                 =3D 0x00000000=0A=
Path Info                    =3D 0x00031800=0A=
System Responder Address     =3D 0xfffffffffed10200=0A=
System Requestor Address     =3D 0xfffffffffffa0000=0A=
=0A=
Floating-Point Registers 0 - 31=0A=
00-03   0000001f00000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
04-07   1030381000000001  0000000110149d78  000000020028a286  =
0000000000000000=0A=
08-11   1030a02000000002  ffffffff0000000a  0000000000000000  =
103aed9f00000000=0A=
12-15   0000000000000000  0000000010139d8c  0000000010303810  =
1030081010300810=0A=
16-19   2f38e0001039c000  0000000000000002  0000000010300810  =
1039b8102f38e000=0A=
20-23   1039c00000000000  0000000200000000  0000000000000000  =
0000000000000000=0A=
24-27   0000080000000000  0000003000000000  103b4d64102b9364  =
2f38e005102b9474=0A=
28-31   3031323334353637  3839616210139f94  6768696a6b6c6d6e  =
6f70717273747576=0A=
=0A=
<Press any key to continue (q to quit)> =0A=
=0A=
=0A=
'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:=0A=
=0A=
Check Summary                =3D 0xcb81041000000000=0A=
Available Memory             =3D 0x0000000020000000=0A=
CPU Diagnose Register 2      =3D 0x0201000000000004=0A=
CPU Status Register 0        =3D 0x2420c20000000000=0A=
CPU Status Register 1        =3D 0x8080000000000000=0A=
SADD LOG                     =3D 0x010008a100000001=0A=
Read Short LOG               =3D 0xc1a0f0f0f0400804=0A=
ERROR_STATUS                 =3D 0x0000000000000010=0A=
MEM_ADDR                     =3D 0x000001ff3fffffff=0A=
MEM_SYND                     =3D 0x0000000000000000=0A=
MEM_ADDR_CORR                =3D 0x000001ff3fffffff=0A=
MEM_SYND_CORR                =3D 0x0000000000000000=0A=
RUN_DATA_HIGH                =3D 0xc1bff0fffed08040=0A=
RUN_DATA_LOW                 =3D 0xc1bff0fffed08040=0A=
RUN_CTRL                     =3D 0x0000021c00001418=0A=
RUN_ADDR                     =3D 0xc1bff0fffed08040=0A=
System Responder Path        =3D 0x00ffffffffffffff=0A=
=0A=
=0A=
HPMC PIM Analysis Information:=0A=
=0A=
Timestamp =3D =0A=
  Fri Jan  3 21:45:13 GMT 2003    (20:03:01:03:21:45:13)=0A=
=0A=
=0A=
'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 =
bytes:=0A=
=0A=
A Data Miss Timeout occurred while CPU 0 was=0A=
requesting information.=0A=
=0A=
=0A=
Memory/IO Controller Error Analysis Information:=0A=
=0A=
The Memory/IO Controller only observed the Broadcast Error.  It did not =
log=0A=
any additional information about the HPMC.=0A=
=0A=
<Press any key to continue (q to quit)> =0A=
=0A=
-----------------  Processor 0 LPMC Information ------------------=0A=
=0A=
Check Type                   =3D 0x00000000=0A=
I/D Cache Parity Info        =3D 0x00000000=0A=
Cache Check                  =3D 0x00000000=0A=
TLB Check                    =3D 0x00000000=0A=
Bus Check                    =3D 0x00000000=0A=
Assists Check                =3D 0x00000000=0A=
Assist State                 =3D 0x00000000=0A=
Path Info                    =3D 0x00000000=0A=
System Responder Address     =3D 0x0000000000000000=0A=
System Requestor Address     =3D 0x0000000000000000=0A=
=0A=
=0A=
-----------------  Processor 0 TOC Information -------------------=0A=
=0A=
General Registers 0 - 31=0A=
00-03   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
04-07   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
08-11   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
12-15   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
16-19   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
20-23   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
24-27   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
28-31   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
=0A=
<Press any key to continue (q to quit)> =0A=
=0A=
Control Registers 0 - 31=0A=
00-03   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
04-07   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
08-11   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
12-15   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
16-19   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
20-23   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
24-27   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
28-31   0000000000000000  0000000000000000  0000000000000000  =
0000000000000000=0A=
Space Registers 0 - 7=0A=
=0A=
00-03   00000000          00000000          00000000          00000000=0A=
04-07   00000000          00000000          00000000          00000000=0A=
=0A=
IIA Space                    =3D 0x0000000000000000=0A=
IIA Offset                   =3D 0x0000000000000000=0A=
CPU State                    =3D 0x00000000=0A=
=0A=
=0A=
<Press any key to continue (q to quit)> =0A=
=0A=
Memory Error Log Information:=0A=
=0A=
Timestamp =3D =0A=
  Fri Jan  3 21:45:13 GMT 2003    (20:03:01:03:21:45:13)=0A=
=0A=
=0A=
'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:=0A=
=0A=
   No memory errors logged=0A=
=0A=
=0A=
I/O Module Error Log Information:=0A=
=0A=
Timestamp =3D =0A=
  Fri Jan  3 21:45:13 GMT 2003    (20:03:01:03:21:45:13)=0A=
=0A=
=0A=
'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:=0A=
=0A=
 Rope     Word1        Word2            Word3=0A=
------ ------------ ------------=0A=
   0    0x00000000   0x0e0cc009   0x00000000fed30048=0A=
   1    0x00000000   0x1e0cc009   0x00000000fed32048=0A=
   2    ----------   0x2e0cc009   ------------------=0A=
   3    ----------   0x3e0cc009   ------------------=0A=
   4    0x00000000   0x4e0cc009   0x00000000fed38048=0A=
   5    ----------   0x5e0cc009   ------------------=0A=
   6    0x00000000   0x6e0cc009   0x00000000fed3c048=0A=
   7    ----------   0x7e0cc009   ------------------=0A=
Service Menu: Enter command > =0A=

------=_NextPart_000_001C_01C2B331.415DC930
Content-Type: text/plain;
	name="bootLog.txt"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="bootLog.txt"

bo ide=0A=
Interact with IPL (Y, N, Q)?> n=0A=
=0A=
Booting... =0A=
Boot IO Dependent Code (IODC) revision 0=0A=
=0A=
=0A=
HARD Booted.=0A=
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002=0A=
=0A=
Boot image contains:=0A=
    0/vmlinux32 3687647 bytes @ 0x608000=0A=
    0/vmlinux64 4719374 bytes @ 0x98c800=0A=
    0/ramdisk 2663046 bytes @ 0xe0d000=0A=
=0A=
Information: No console specified on kernel command line. This is normal.=0A=
PALO will choose the console currently used by firmware (serial).=0A=
Command line for kernel: 'ramdisk_size=3D8192 root=3D/dev/ram =
console=3DttyS0 TERM=3Dvt102 palo_kernel=3D0/vmlinux'=0A=
Selected kernel: /vmlinux from partition 0=0A=
Selected ramdisk: /ramdisk from partition 0=0A=
Warning: kernel name doesn't end with 32 or 64 -- Guessing... =0A=
This box can boot either 32 or 64-bit kernels...Both kernels available, =
choosing 32-bit kernelELF32 executable=0A=
Entry 00100000 first 00100000 n 5=0A=
Segment 0 load 00100000 size 2024492 mediaptr 0x1000=0A=
Segment 1 load 002f0000 size 299320 mediaptr 0x1f0000=0A=
Segment 2 load 0033c000 size 401408 mediaptr 0x23a000=0A=
Segment 3 load 003a0000 size 32768 mediaptr 0x29c000=0A=
Segment 4 load 003c90f8 size 102032 mediaptr 0x2a40f8=0A=
Loading ramdisk 2663046 bytes @ 1fd65000...=0A=
Branching to kernel entry point 0x00100000.  If this is the last=0A=
message you see, you may need to switch your console.  This is=0A=
a common symptom -- search the FAQ and mailing list at parisc-linux.org=0A=
=0A=
Linux version 2.4.17-32 (root@paer) (gcc version 3.0.4) #1 Sat Mar 16 =
17:09:00 MST 2002=0A=
FP[0] enabled: Rev 1 Model 16=0A=
The 32-bit Kernel has started...=0A=
Determining PDC firmware type: System Map.=0A=
model 00005bc0 00000481 00000000 00000002 77d1dd40 100000f0 00000008 =
000000b2 000000b2=0A=
vers  00000201=0A=
CPUID vers 17 rev 5 (0x00000225)=0A=
model 9000/785/B1000=0A=
Total Memory: 512 Mb=0A=
initrd: 2fd65000-2ffef286=0A=
initrd: reserving 1fd65000-1ffef286 (mem_max 20000000)=0A=
pagetable_init=0A=
On node 0 totalpages: 131072=0A=
zone(0): 131072 pages.=0A=
zone(1): 0 pages.=0A=
zone(2): 0 pages.=0A=
LCD display at f05d0008,f05d0000 registered=0A=
Kernel command line: ramdisk_size=3D8192 root=3D/dev/ram console=3DttyS0 =
TERM=3Dvt102 palo_kernel=3D0/vmlinux=0A=
Console: colour dummy device 160x64=0A=
Calibrating delay loop... 599.65 BogoMIPS=0A=
Memory: 510408k available=0A=
Dentry-cache hash table entries: 65536 (order: 7, 524288 bytes)=0A=
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)=0A=
Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)=0A=
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)=0A=
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)=0A=
Searching for devices...=0A=
Found devices:=0A=
1. Astro BC Runway Port (12) at 0xfed00000 [10], versions 0x582, 0x0, 0xb=0A=
2. Elroy PCI Bridge (13) at 0xfed30000 [10/0], versions 0x782, 0x0, 0xa=0A=
3. Elroy PCI Bridge (13) at 0xfed32000 [10/1], versions 0x782, 0x0, 0xa=0A=
4. Elroy PCI Bridge (13) at 0xfed38000 [10/4], versions 0x782, 0x0, 0xa=0A=
5. Elroy PCI Bridge (13) at 0xfed3c000 [10/6], versions 0x782, 0x0, 0xa=0A=
6. AllegroLow W (0) at 0xfffa0000 [32], versions 0x5bc, 0x0, 0x4=0A=
7. Memory (1) at 0xfed10200 [49], versions 0x87, 0x0, 0x9=0A=
CPU(s): 1 x PA8500 (PCX-W) at 300.000000 MHz=0A=
SBA found Astro 2.1 at 0xfed00000=0A=
lba version TR2.1 (0x2) found at 0xfed30000=0A=
lba version TR2.1 (0x2) found at 0xfed32000=0A=
lba version TR2.1 (0x2) found at 0xfed38000=0A=
lba version TR2.1 (0x2) found at 0xfed3c000=0A=
iosapic: hpa not registered for Hewlett-Packard Company A4977A Visualize =
EG=0A=
POSIX conformance testing by UNIFIX=0A=
Linux NET4.0 for Linux 2.4=0A=
Based upon Swansea University Computer Society NET3.039=0A=
Initializing RT netlink socket=0A=
Enabled soft power switch (polling mode, io=3D0xf0400804).=0A=
SuperIO: Found NS87560 Legacy I/O device at 00:0e.1 (IRQ 64) =0A=
SuperIO: Serial port 1 at 0x3f8=0A=
SuperIO: Serial port 2 at 0x2f8=0A=
SuperIO: Parallel port at 0x378=0A=
SuperIO: Floppy controller at 0x3f0=0A=
SuperIO: ACPI at 0x7e0=0A=
SuperIO: USB regulator enabled=0A=
parport0: PC-style at 0x378, irq 101 [PCSPP(,...)]=0A=
Starting kswapd=0A=
Journalled Block Device driver loaded=0A=
PCI graphic ROM found at f7000000 (64 kB), fb @ fa000000 (32 MB)=0A=
STI word mode ROM at f7000044, hpa=3Dfa000000=0A=
STI word mode ROM, id 2d08c0a7-9a02587, conforms to spec rev. 8.0a=0A=
STI device: PCI_GRAFFITIX1024=0A=
Console: switching to colour frame buffer device 128x48=0A=
fb0: stifb 1024x768-8 frame buffer device, id: 2d08c0a7, mmio: 0xfa100000=0A=
pty: 256 Unix98 ptys configured=0A=
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ =
SERIAL_PCI enabled=0A=
ttyS00 at port 0x03f8 (irq =3D 99) is a 16550A=0A=
ttyS01 at port 0x02f8 (irq =3D 100) is a 16550A=0A=
lp0: using parport0 (interrupt-driven).=0A=
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)=0A=
block: 128 slots per queue, batch=3D32=0A=
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize=0A=
Uniform Multi-Platform E-IDE driver Revision: 6.31=0A=
ide: Assuming 33MHz system bus speed for PIO modes; override with =
idebus=3Dxx=0A=
NS87415: IDE controller on PCI bus 00 dev 70=0A=
NS87415: chipset revision 3=0A=
NS87415: 100% native mode on irq 103=0A=
    ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:pio, hdb:pio=0A=
    ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:pio, hdd:pio=0A=
hda: TOSHIBA DVD-ROM SD-M1612, ATAPI CD/DVD-ROM drive=0A=
ide0 at 0xf00-0xf07,0xe02 on irq 103=0A=
hda: ATAPI 48X DVD-ROM drive, 512kB Cache=0A=
Uniform CD-ROM driver Revision: 3.12=0A=
loop: loaded (max 8 devices)=0A=
Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)=0A=
tulip0: no phy info, aborting mtable build=0A=
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.=0A=
eth0: Digital DS21143 Tulip rev 65 at 0x1000, 00:10:83:04:94:C9, IRQ 66.=0A=
SCSI subsystem driver Revision: 1.00=0A=
sym53c8xx: at PCI bus 0, device 15, function 0=0A=
sym53c8xx: 53c896 detected =0A=
sym53c8xx: at PCI bus 0, device 15, function 1=0A=
sym53c8xx: 53c896 detected =0A=
sym53c896-0: rev 0x4 on pci bus 0 device 15 function 0 irq 65=0A=
sym53c896-0: ID 7, Fast-20, Parity Checking=0A=
sym53c896-0: handling phase mismatch from SCRIPTS.=0A=
sym53c896-1: rev 0x4 on pci bus 0 device 15 function 1 irq 65=0A=
sym53c896-1: ID 7, Fast-40, Parity Checking=0A=
sym53c896-1: handling phase mismatch from SCRIPTS.=0A=
scsi0 : sym53c8xx-1.7.3c-20010512=0A=
scsi1 : sym53c8xx-1.7.3c-20010512=0A=
  Vendor: IBM       Model: DNES-309170Y      Rev: SAA0=0A=
  Type:   Direct-Access                      ANSI SCSI revision: 03=0A=
Attached scsi disk sda at scsi1, channel 0, id 6, lun 0=0A=
sym53c896-1-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 31)=0A=
SCSI device sda: 17916240 512-byte hdwr sectors (9173 MB)=0A=
Partition check:=0A=
 sda: sda1=0A=
sticonsole_init: searching for STI ROMs=0A=
md: linear personality registered as nr 1=0A=
md: raid0 personality registered as nr 2=0A=
md: raid1 personality registered as nr 3=0A=
md: raid5 personality registered as nr 4=0A=
raid5: measuring checksumming speed=0A=
   8regs     :   722.400 MB/sec=0A=
   8regs_prefetch:   722.800 MB/sec=0A=
   32regs    :   513.600 MB/sec=0A=
   32regs_prefetch:   513.200 MB/sec=0A=
raid5: using function: 8regs_prefetch (722.800 MB/sec)=0A=
md: md driver 0.90.0 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27=0A=
md: Autodetecting RAID arrays.=0A=
md: autorun ...=0A=
md: ... autorun DONE.=0A=
NET4: Linux TCP/IP 1.0 for NET4.0=0A=
IP Protocols: ICMP, UDP, TCP, IGMP=0A=
IP: routing cache hash table of 4096 buckets, 32Kbytes=0A=
TCP: Hash tables configured (established 32768 bind 65536)=0A=
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.=0A=
RAMDISK: Compressed image found at block 0=0A=
EXT2-fs warning: checktime reached, running e2fsck is recommended=0A=
VFS: Mounted root (ext2 filesystem).=0A=
NOT FREEING INITMEM (383k)=0A=
serial console detected.  Disabling virtual terminals.=0A=
init started:  BusyBox v0.60.3-pre (2002.01.21-23:29+0000) multi-call =
binary=0A=

------=_NextPart_000_001C_01C2B331.415DC930--



From - Thu Nov 08 21:26:08 2018
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From: grundler@dsl2.external.hp.com (Grant Grundler)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] B1000 Debian 3.0r1 High-Priority Machine Check
Date: Fri, 3 Jan 2003 18:55:26 -0700
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To: Steve Cornett <stevec@bullseye.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:17246

On Fri, Jan 03, 2003 at 02:06:02PM -0800, Steve Cornett wrote:
> I booted the Debian 3.0r1 CD 1 on my generic B1000 and it crashed.
...
> System Responder Address     = 0xfffffffffed10200
> System Requestor Address     = 0xfffffffffffa0000

"Requestor" is the CPU.
/proc/iomem on my c3k shows "fed00000-fed00fff : SBA" but nothing for
0xfed10200.

...
> Linux version 2.4.17-32 (root@paer) (gcc version 3.0.4) #1 Sat Mar 16 17:09:00 MST 2002

Any chance this could upgraded to at least a 2.4.19?
Or will the new "BF" images Richard posted do that?
(http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/018746.htm)
Steve, can you try the beta Boot Floppies?


> 7. Memory (1) at 0xfed10200 [49], versions 0x87, 0x0, 0x9

erm, someone tried to reference the memory controller?

hth,
grant


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From: LaMont Jones <lamont@hp.com>
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Subject: [parisc-linux] gcc 3.2 ICE
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Xref: news.gmane.org gmane.linux.ports.parisc:17247

This is a build log with a gcc 3.2 ICE..
http://buildd.debian.org/fetch.php?&pkg=xine-lib&ver=1-beta2-3&arch=hppa&stamp=1041582169&file=log&as=raw

It would appear that the gcc version used is:
    gcc-3.2_1:3.2.2ds3-0pre3

If that helps anyone...

(The maintainer switched over to gcc-3.2 when 3.0 was ICE'ing, but that
didn't fix the problem.)
 
gcc-3.2 -DHAVE_CONFIG_H -I. -I. -I../../.. -I../../.. -I../../../include -I../../../include -I../../../src -I../../../src/xine-engine -I../../../src/xine-engine -I../../../src/xine-utils -Wall -D_REENTRANT -D_FILE_OFFSET_BITS=64 -DXINE_COMPILE -O3 -I/usr/include/kde/artsc -c rpe.c -MT rpe.lo -MD -MP -MF .deps/rpe.TPlo  -fPIC -DPIC -o rpe.lo
rpe.c: In function `APCM_quantization':
rpe.c:422: internal error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.

If anyone wants, I'm happy to do the preprocessing, but I'll be heading out
of town Sunday for a week, and Saturday is understandably swamped...

lamont


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From: "Steve Cornett" <stevec@bullseye.com>
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> Steve, can you try the beta Boot Floppies?
My B1000 cannot seem to boot from floppy.  I verified my floppy drive
works from HP-UX.  When I use the firmware command "boot floppy" I
immediately get the error shown below, without an attempt to read from
the floppy drive.

Firmware Version 5.0
...
Main Menu: Enter command > boot floppy
ERROR:  Not a boot path
Main Menu: Enter command > in
Information Menu: Enter command > io
I/O MODULE INFORMATION
 
IODC IODC
Path         Decimal     Type                  Location   HVER SVER
Vers Dep
------------ ----------- --------------------- ---------- ---- ----
---- ----
LAN          10/0/12/0   Ethernet              built-in   0050 a200
0x02 0x00
AUDIO        10/0/13/0   Audio                 built-in   
IDE          10/0/14/0   IDE                   built-in   0050 a300
0x00 0x00
SUPERIO MISC 10/0/14/1   Bridge Device         built-in   
FLOPPY       10/0/14/1/0 Floppy Disk           built-in   
SERIAL_1     10/0/14/1/1 RS232 Port            built-in   0050 8c00
0x01 0x00
SERIAL_2     10/0/14/1/2 RS232 Port            built-in   0050 8c00
0x01 0x00
PARALLEL     10/0/14/1/3 Parallel Port         built-in   
USB          10/0/14/2   USB                   built-in   0050 a900
0x98 0x00
SCSI         10/0/15/0   SCSI                  built-in   0050 a300
0x00 0x00
FWSCSI       10/0/15/1   SCSI                  built-in   0050 a300
0x00 0x00
GRAPHICS(2)  10/6/2/0    PCI_GRAFFITIX1024     slot 2     0070 8500
0x01 0x00

Main Menu: Enter command > boot 10/0/14/1/0

ERROR:  Not a boot path



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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: Re: [parisc-linux] B1000 Debian 3.0r1 High-Priority Machine Check
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Xref: news.gmane.org gmane.linux.ports.parisc:17249

On Sat, 4 Jan 2003 10:07:59 -0800
"Steve Cornett" <stevec@bullseye.com> wrote:

> > Steve, can you try the beta Boot Floppies?
> My B1000 cannot seem to boot from floppy.  I verified my floppy drive
> works from HP-UX.  When I use the firmware command "boot floppy" I
> immediately get the error shown below, without an attempt to read from
> the floppy drive.
Of course, there is no floppy support.

The "Boot Floppies" are the "boot images" if you prefer. They can be used on CD or any other media support.

Perhaps you should take a look at the PA-RISC/Linux Boot HOWTO:
http://pateam.esiee.fr/doc.html

You'll find there useful info on various way to boot Linux on an hppa box (like from network, which is what I would recommend here).

Can you eventually try one of the 2.4.19 ISO or lifimage that you can find there:
http://pateam.esiee.fr/cd-images/testing/
http://pateam.esiee.fr/cd-images/lifimages/

Those are known to work on B1000. If they fail, then we may start looking for a problem related either to 3.0r1 CD or to your box (specific configuration ?)

HTH,

Greetings,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] do_page_fault() infinite loop running 2.4.20-pa18 #9 SMP
Date: Sat, 4 Jan 2003 14:38:15 -0500 (EST)
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Xref: news.gmane.org gmane.linux.ports.parisc:17250

This has been around for awhile.  When using a SMP configuration, the
program expect "causes" a segmentation fault that results in do_page_fault()
going into an infinite loop.  The log data repeats indefinitely and
eventually fills /var.  For some reason, expect is not killed by the kernel
when this happens, although the loop can be broken by manually killing it.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Frank van Gestel <fvgestel@mijn.mine.nu>
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Subject: [parisc-linux] hp735 Differential SCSI
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Xref: news.gmane.org gmane.linux.ports.parisc:17251

Hello,

I recently got my hands on a hp735, with some diskarrays connected to 
the differential scsi interface. I'm now trying get the kernel driver 
working. I read a lot of posts about it in the past and I found the 
outfield patch on the ftp-site.
After installing latest kernel sources and patch, I tried compiling a 
new kernel. This kernel resulted in crash. After some debugging I found 
out that the zalon address was used instead of the outfield, so I made 
the following change in zalon7xx.c :

hosts_used = zalon_attach(hosts_tptr, dev->hpa +
                (zalon?GSC_SCSI_ZALON_OFFSET:SCSI_OUTFIELD_OFFSET),
                dev, irq, zalon_id, !zalon /* outfield */);

Now the kernel detects the chip. It still crashes the kernel. After 
numerous hard resets and a lot of debugging lines, I got the 
boot-sequence shown below. I'm not a hardware guy  and know nothing 
about registerscripts, etc... Anybody else got ideas?...

Frank van Gestel

------------------------------------------------------

(c) Copyright.  Hewlett-Packard Company.  1992.
All rights reserved.

PDC ROM rev. 2.7
IODC ROM rev. 1.1
224 MB of memory configured and tested.


Selecting a system to boot.
To stop selection process, press and hold the ESCAPE key.

Selection process stopped.

Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.1.0                 MICROP  1588-15MBSUN0669
P1                    scsi.0.0                 MAXTOR  LXT-213S SUN0207
P2                    fwscsi.6.0               SEAGATE ST32430W
P3                    lan.080020-11f7e6.0.0    sun2



b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu: b
Enter boot selection, (h)elp, or e(x)it: p3

Trying lan.080020-11f7e6.0.0
Boot path initialized.
Attempting to load IPL.


Hard booted.
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002

Boot image contains:
    0/vmlinux32 3067289 bytes @ 0x8000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'HOME=/ root=/dev/sdb2 console=ttyS0 TERM=vt102 
palo_ke

rnel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 
32-bit kernel ELF32 executable
Entry 00100208 first 00100000 n 6
Segment 0 load 00100000 size 1836364 mediaptr 0x1000
Segment 1 load 002c2000 size 277984 mediaptr 0x1c2000
Segment 2 load 00308000 size 230992 mediaptr 0x206000
Segment 3 load 00344000 size 8192 mediaptr 0x23f000
Segment 4 load 00348000 size 32768 mediaptr 0x241000
Segment 5 load 00371984 size 93920 mediaptr 0x249984
Branching to kernel entry point 0x00100208.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.20-pa18 (root@hp735) (gcc version 3.0.4) #29 Sat Jan 4 
19:52:4

1 CET 2003
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00002060 00000481 00000000 00000000 00ce8116 ffffffff 00000004 
0000000a 0000000a
vers  00000016
model 9000/735
Total Memory: 224 Mb
pagetable_init
On node 0 totalpages: 57344
zone(0): 57344 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ root=/dev/sdb2 console=ttyS0 TERM=vt102 
palo_kernel=0/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 124.51 BogoMIPS
Memory: 223996k available
Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode cache hash table entries: 16384 (order: 5, 131072 bytes)
Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf8000000 [1], versions 0x4, 0x0, 0x77
2. Outfield Core BA (11) at 0xf082f000 [2], versions 0x9, 0x0, 0x70
3. Outfield Core SCSI (10) at 0xf0825000 [2/0/1], versions 0x9, 0x0, 0x71
4. Outfield Core LAN (802.3) (10) at 0xf0826000 [2/0/2], versions 0x9, 
0x0, 0x72
5. Outfield Core HIL (10) at 0xf0821000 [2/0/3], versions 0x9, 0x0, 0x73
6. Outfield Core RS-232 (10) at 0xf0823000 [2/0/4], versions 0x9, 0x0, 0x75
7. Outfield Core RS-232 (10) at 0xf0822000 [2/0/5], versions 0x9, 0x0, 0x75
8. Outfield Core Centronics (10) at 0xf0824000 [2/0/6], versions 0x9, 
0x0, 0x74
9. Outfield FW SCSI (10) at 0xf0830000 [2/0/7], versions 0x9, 0x0, 0x7c
10. Outfield Audio (10) at 0xf1000000 [2/0/8], versions 0x9, 0x0, 0x7f
11. Cobra EISA BA (11) at 0xfc000000 [4], versions 0x4, 0x0, 0x76
12. Snake Cheetah (735/130) (0) at 0xfffbe000 [8], versions 0x206, 0x0, 0x4
13. Memory (1) at 0xfffbf000 [9], versions 0x37, 0x0, 0x9
CPU(s): 1 x PA7100 (PCX-T) at 125.000000 MHz
Cutoff version 4 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered
Mongoose EISA Adapter found at 0xfc000000
EISA EEPROM at 0xf0810400
Enumerating EISA bus
EISA slot 1: HWP1850 EISA IRQ 3
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch support not available.
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
STI GSC/PCI graphics driver version 0.9
STI byte mode ROM at f8000000, hpa at f8000000
STI id 26d1482a-40a00499, conforms to spec rev. 8.02
STI device: HPA1659A
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 26d1482a, mmio: 0xf8100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with no serial options enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0826000, IRQ 87
82596.c: MAC of HP700 LAN read from EEPROM
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 8C 45 7C IRQ 87.
82596.c $Revision: 1.30 $
SCSI subsystem driver Revision: 1.00
scsi_register_host: tttt1
scsi_register_host: tttt2
zalon7xx_detect: ttt1
zalon_attach
ncr53c8xx: 
setup=disc:y,specf:3,tags:8,sync:12,burst:7,wide:y,diff:0,revprob:n,b

uschk:0x1
ncr53c8xx: 
setup=mpar:y,spar:y,fsn=n,verb:0,debug:0x0,led:n,settle:2,irqm:0x0,nv

ram:0x1,pcifix:0x0
io_port:F0830100
ncr53c8xx: 53c720 detected
ncr_attach
ncr_prepare_setting
ncr_init_burst
ncr_init_burst
ncr_name
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
ncr_prepare_setting
ncr_script_fill start
ncr_script_fill end
ncr_script_copy_and_bind start
ncr_script_copy_and_bind end
ncr_script_copy_and_bind start
ncr_script_copy_and_bind end
ncr_chip_reset start
ncr_chip_reset end
ncr_snooptest start
ncr_regtest start
ncr_regtest end
do_big_flush start
do_big_flush end
/* instruction  OUTL (nc_dsp, (v)) generates CPU exceptions : */
Trap 5 on CPU 0

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 102d012c 10109064 00000001
r04-07  1008e000 0008b244 00000000 10336810
r08-11  1008e034 00000000 00000002 000f4000
r12-15  00000001 000ff000 f0001420 00000000
r16-19  100556c0 08000058 c000c000 90000000
r20-23  00000000 00000001 28181da7 0000021b
r24-27  00000001 00000064 102d0230 102c0010
r28-31  00000000 00000005 10055900 1011fed8
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10109068 1010906c
 IIR: 2269f204    ISR: 00000000  IOR: 102d3800
 CPU:        0   CR30: 10054000 CR31: 10348000
 ORIG_R28: 103571ff

*/  After removing the instruction, the folllowing happens : */
ncr_chip_reset start
ncr_chip_reset end
CACHE TEST FAILED: timeout.
CACHE INCORRECTLY CONFIGURED.
ncr_name
ncr53c720-0: detaching...




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Subject: [parisc-linux] Re: [PATCH] PATCH: add hwclock ioctls used in 2.4 for pa and in 2.5
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	parisc-linux@parisc-linux.org
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On Thu, 2 Jan 2003, Linux Kernel Mailing List wrote:
> ChangeSet 1.925, 2003/01/02 21:03:29-02:00, alan@lxorguk.ukuu.org.uk
> 
> 	[PATCH] PATCH: add hwclock ioctls used in 2.4 for pa and in 2.5
> 	
> 
> 
> # This patch includes the following deltas:
> #	           ChangeSet	1.924   -> 1.925  
> #	  include/linux/kd.h	1.3     -> 1.4    
> #
> 
>  kd.h |   13 +++++++++++++
>  1 files changed, 13 insertions(+)
> 
> 
> diff -Nru a/include/linux/kd.h b/include/linux/kd.h
> --- a/include/linux/kd.h	Thu Jan  2 18:32:57 2003
> +++ b/include/linux/kd.h	Thu Jan  2 18:32:57 2003
> @@ -132,6 +132,19 @@
>  
>  #define KDSIGACCEPT	0x4B4E	/* accept kbd generated signals */
>  
> +struct hwclk_time {
> +	unsigned	sec;	/* 0..59 */
> +	unsigned	min;	/* 0..59 */
> +	unsigned	hour;	/* 0..23 */
> +	unsigned	day;	/* 1..31 */
> +	unsigned	mon;	/* 0..11 */
> +	unsigned	year;	/* 70... */
> +	int		wday;	/* 0..6, 0 is Sunday, -1 means unknown/don't set */
> +};
> +
> +#define KDGHWCLK        0x4B50	/* get hardware clock */
> +#define KDSHWCLK        0x4B51  /* set hardware clock */
> +
>  struct kbd_repeat {
>  	int delay;	/* in msec; <= 0: don't change */
>  	int rate;	/* in msec; <= 0: don't change */

Ugh, and I was so happy to have them removed in 2.4.19 :-(
BTW, they were removed from 2.5.x in 2.5.15 as well.

ChangeSet log was:
| - Kill m68k-specific struct hwclk_time in favor of common struct rtc_time
| - Kill m68k-specific KD[GS]HWCLK ioctls() (the code for them was removed a
|   long time ago)

Wouldn't it be better to convert PA-RISC to use struct rtc_time as well?

And the KD[GS]HWCLK ioctl()s are obsolete anyway, use /dev/rtc to access the
hardware clock. On PA-RISC that should be done through genrtc, which I'm in the
process of cleaning up for submission to marcelo.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds




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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] hp735 Differential SCSI
Date: 04 Jan 2003 14:27:53 -0700
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To: Frank van Gestel <fvgestel@mijn.mine.nu>
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Frank,

Yeah, the problem is more basic then that.  The 735 and 755 do not have
coherant io.  The FW Diff driver for these systems (nc53c720) requires
the io to be coherant.  I have some preliminary patches from Richard
Hirst to see if we can "educate" the driver about non-coherant IO.  I
just have not had much time to play with them lately.  I would be glad
to find them and pass them on if you are interested in looking into
this!

Thanks,

- Ryan

P.S. Sorry .. still on my TODO list... just a lower priority then making
sure parisc-linux is ready for 2.6/3.0.


On Sat, 2003-01-04 at 13:02, Frank van Gestel wrote:
> Hello,
> 
> I recently got my hands on a hp735, with some diskarrays connected to 
> the differential scsi interface. I'm now trying get the kernel driver 
> working. I read a lot of posts about it in the past and I found the 
> outfield patch on the ftp-site.
> After installing latest kernel sources and patch, I tried compiling a 
> new kernel. This kernel resulted in crash. After some debugging I found 
> out that the zalon address was used instead of the outfield, so I made 
> the following change in zalon7xx.c :
> 
> hosts_used = zalon_attach(hosts_tptr, dev->hpa +
>                 (zalon?GSC_SCSI_ZALON_OFFSET:SCSI_OUTFIELD_OFFSET),
>                 dev, irq, zalon_id, !zalon /* outfield */);
> 
> Now the kernel detects the chip. It still crashes the kernel. After 
> numerous hard resets and a lot of debugging lines, I got the 
> boot-sequence shown below. I'm not a hardware guy  and know nothing 
> about registerscripts, etc... Anybody else got ideas?...
> 
> Frank van Gestel
> 
> ------------------------------------------------------
> 
> (c) Copyright.  Hewlett-Packard Company.  1992.
> All rights reserved.
> 
> PDC ROM rev. 2.7
> IODC ROM rev. 1.1
> 224 MB of memory configured and tested.
> 
> 
> Selecting a system to boot.
> To stop selection process, press and hold the ESCAPE key.
> 
> Selection process stopped.
> 
> Searching for Potential Boot Devices.
> To terminate search, press and hold the ESCAPE key.
> 
> Device Selection      Device Path              Device Type
> ----------------------------------------------------------------------------
> 
> P0                    scsi.1.0                 MICROP  1588-15MBSUN0669
> P1                    scsi.0.0                 MAXTOR  LXT-213S SUN0207
> P2                    fwscsi.6.0               SEAGATE ST32430W
> P3                    lan.080020-11f7e6.0.0    sun2
> 
> 
> 
> b)    Boot from specified device
> s)    Search for bootable devices
> a)    Enter Boot Administration mode
> x)    Exit and continue boot sequence
> ?)    Help
> 
> Select from menu: b
> Enter boot selection, (h)elp, or e(x)it: p3
> 
> Trying lan.080020-11f7e6.0.0
> Boot path initialized.
> Attempting to load IPL.
> 
> 
> Hard booted.
> palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002
> 
> Boot image contains:
>     0/vmlinux32 3067289 bytes @ 0x8000
> 
> Information: No console specified on kernel command line. This is normal.
> PALO will choose the console currently used by firmware (serial).
> Command line for kernel: 'HOME=/ root=/dev/sdb2 console=ttyS0 TERM=vt102 
> palo_ke
> 
> rnel=0/vmlinux'
> Selected kernel: /vmlinux from partition 0
> Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 
> 32-bit kernel ELF32 executable
> Entry 00100208 first 00100000 n 6
> Segment 0 load 00100000 size 1836364 mediaptr 0x1000
> Segment 1 load 002c2000 size 277984 mediaptr 0x1c2000
> Segment 2 load 00308000 size 230992 mediaptr 0x206000
> Segment 3 load 00344000 size 8192 mediaptr 0x23f000
> Segment 4 load 00348000 size 32768 mediaptr 0x241000
> Segment 5 load 00371984 size 93920 mediaptr 0x249984
> Branching to kernel entry point 0x00100208.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org
> 
> Linux version 2.4.20-pa18 (root@hp735) (gcc version 3.0.4) #29 Sat Jan 4 
> 19:52:4
> 
> 1 CET 2003
> FP[0] enabled: Rev 1 Model 9
> The 32-bit Kernel has started...
> Determining PDC firmware type: Snake.
> model 00002060 00000481 00000000 00000000 00ce8116 ffffffff 00000004 
> 0000000a 0000000a
> vers  00000016
> model 9000/735
> Total Memory: 224 Mb
> pagetable_init
> On node 0 totalpages: 57344
> zone(0): 57344 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> Kernel command line: HOME=/ root=/dev/sdb2 console=ttyS0 TERM=vt102 
> palo_kernel=0/vmlinux
> Console: colour dummy device 160x64
> Calibrating delay loop... 124.51 BogoMIPS
> Memory: 223996k available
> Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
> Inode cache hash table entries: 16384 (order: 5, 131072 bytes)
> Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
> Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
> Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
> Searching for devices...
> Found devices:
> 1. Coral SGC Graphics (10) at 0xf8000000 [1], versions 0x4, 0x0, 0x77
> 2. Outfield Core BA (11) at 0xf082f000 [2], versions 0x9, 0x0, 0x70
> 3. Outfield Core SCSI (10) at 0xf0825000 [2/0/1], versions 0x9, 0x0, 0x71
> 4. Outfield Core LAN (802.3) (10) at 0xf0826000 [2/0/2], versions 0x9, 
> 0x0, 0x72
> 5. Outfield Core HIL (10) at 0xf0821000 [2/0/3], versions 0x9, 0x0, 0x73
> 6. Outfield Core RS-232 (10) at 0xf0823000 [2/0/4], versions 0x9, 0x0, 0x75
> 7. Outfield Core RS-232 (10) at 0xf0822000 [2/0/5], versions 0x9, 0x0, 0x75
> 8. Outfield Core Centronics (10) at 0xf0824000 [2/0/6], versions 0x9, 
> 0x0, 0x74
> 9. Outfield FW SCSI (10) at 0xf0830000 [2/0/7], versions 0x9, 0x0, 0x7c
> 10. Outfield Audio (10) at 0xf1000000 [2/0/8], versions 0x9, 0x0, 0x7f
> 11. Cobra EISA BA (11) at 0xfc000000 [4], versions 0x4, 0x0, 0x76
> 12. Snake Cheetah (735/130) (0) at 0xfffbe000 [8], versions 0x206, 0x0, 0x4
> 13. Memory (1) at 0xfffbf000 [9], versions 0x37, 0x0, 0x9
> CPU(s): 1 x PA7100 (PCX-T) at 125.000000 MHz
> Cutoff version 4 at 0xf082f000 found.
> LED (ASP-style) display at f0800020 registered
> Mongoose EISA Adapter found at 0xfc000000
> EISA EEPROM at 0xf0810400
> Enumerating EISA bus
> EISA slot 1: HWP1850 EISA IRQ 3
> POSIX conformance testing by UNIFIX
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Initializing RT netlink socket
> Soft power switch support not available.
> Starting kswapd
> Journalled Block Device driver loaded
> Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
> parport_init_chip: enhanced parport-modes not supported.
> parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
> STI GSC/PCI graphics driver version 0.9
> STI byte mode ROM at f8000000, hpa at f8000000
> STI id 26d1482a-40a00499, conforms to spec rev. 8.02
> STI device: HPA1659A
> Console: switching to colour frame buffer device 160x64
> fb0: stifb 1280x1024-8 frame buffer device, id: 26d1482a, mmio: 0xf8100000
> pty: 256 Unix98 ptys configured
> Serial driver version 5.05c (2001-07-08) with no serial options enabled
> ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
> ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
> lp0: using parport0 (interrupt-driven).
> Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> loop: loaded (max 8 devices)
> Found i82596 at 0xf0826000, IRQ 87
> 82596.c: MAC of HP700 LAN read from EEPROM
> eth0: Couldn't get consistent shared memory
> eth0: 82596 at 0xf0826000, 08 00 09 8C 45 7C IRQ 87.
> 82596.c $Revision: 1.30 $
> SCSI subsystem driver Revision: 1.00
> scsi_register_host: tttt1
> scsi_register_host: tttt2
> zalon7xx_detect: ttt1
> zalon_attach
> ncr53c8xx: 
> setup=disc:y,specf:3,tags:8,sync:12,burst:7,wide:y,diff:0,revprob:n,b
> 
> uschk:0x1
> ncr53c8xx: 
> setup=mpar:y,spar:y,fsn=n,verb:0,debug:0x0,led:n,settle:2,irqm:0x0,nv
> 
> ram:0x1,pcifix:0x0
> io_port:F0830100
> ncr53c8xx: 53c720 detected
> ncr_attach
> ncr_prepare_setting
> ncr_init_burst
> ncr_init_burst
> ncr_name
> ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
> ncr_prepare_setting
> ncr_script_fill start
> ncr_script_fill end
> ncr_script_copy_and_bind start
> ncr_script_copy_and_bind end
> ncr_script_copy_and_bind start
> ncr_script_copy_and_bind end
> ncr_chip_reset start
> ncr_chip_reset end
> ncr_snooptest start
> ncr_regtest start
> ncr_regtest end
> do_big_flush start
> do_big_flush end
> /* instruction  OUTL (nc_dsp, (v)) generates CPU exceptions : */
> Trap 5 on CPU 0
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001101111111100001111 Not tainted
> r00-03  00000000 102d012c 10109064 00000001
> r04-07  1008e000 0008b244 00000000 10336810
> r08-11  1008e034 00000000 00000002 000f4000
> r12-15  00000001 000ff000 f0001420 00000000
> r16-19  100556c0 08000058 c000c000 90000000
> r20-23  00000000 00000001 28181da7 0000021b
> r24-27  00000001 00000064 102d0230 102c0010
> r28-31  00000000 00000005 10055900 1011fed8
> sr0-3   00000000 00000000 00000000 00000000
> sr4-7   00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 10109068 1010906c
>  IIR: 2269f204    ISR: 00000000  IOR: 102d3800
>  CPU:        0   CR30: 10054000 CR31: 10348000
>  ORIG_R28: 103571ff
> 
> */  After removing the instruction, the folllowing happens : */
> ncr_chip_reset start
> ncr_chip_reset end
> CACHE TEST FAILED: timeout.
> CACHE INCORRECTLY CONFIGURED.
> ncr_name
> ncr53c720-0: detaching...
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




From - Thu Nov 08 21:26:08 2018
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Subject: Re: [parisc-linux] D370
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On Thu, Jan 02, 2003 at 08:41:07PM +0200, Arto Jantunen wrote:
> Herb Radford <herbr@magma.ca> writes:
> > Has there been any change in the support for the D-Class machines with
> > an Access Port card?

Yes, I posted an email to this list asking for testers a few weeks back,
I think ...

> > I'm not sure I understand what's happening when the AP card is
> > inserted. If I boot into the PDC I get the console on Serial 1. If I
> > boot with my console plugged into the AP card serial port I get nada!
> > When I plug my console into Serial 2 I also get zip!
> > If I boot with the console in Serial 1, output stops at the famous
> > "branching to" message.

Here's what happens.  Without the AP card plugged in, firmware tells us
about 2 serial ports; the one on Lasi and the one on Wax.  Linux detects
them as ttyS0 and ttyS1, respectively.  With the AP card plugged in,
firmware no longer tells us about Lasi's serial port, so Wax's serial
port is assigned ttyS0 instead.  Ryan wrote a driver for the AP card
which will present it as ttyB0.  Wax will still be assigned ttyS0, so
you have to boot with console=/dev/ttyB0 instead of S0.  You also need
to make sure that you've created ttyB0 before rebooting.  And of course,
you need to build support for the serial mux driver into your kernel.

The good news is that this should now be supported by the debian
bootfloppies.  Not sure whether that will ever make it into an official
Debian release before it's superceded by debian-installer.

> > Must the AP card be removed for useful o[peration?
> 
> Thats how I did it for my D390 and after that it works fine. Also,
> you can do the "switch to serial 2 after the branching point" dance..

Another way to do it is to set up the console path to SERIAL_2 and
then boot Linux with ttyS0 and you'll always see output on the second
serial port.

> Also, so that others know, with the current (as in 2.4.20) kernels
> (which fixed some unaligned access issues, I believe), the machine
> works just fine on 32-bit SMP.

Excellent news!

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Thu, Jan 02, 2003 at 01:11:47AM +0100, Helge Deller wrote:
> kernel module support for the 2.5 kernel on hppa seems broken due to some missing 
> support for this architecture in the new modutils and module-init-tools debian packages.
> 
> Maybe someone with somewhat more expirience than me with the ELF file format and 
> runtime symbol relocation functions could look into this ? 

rusty's promised to do it when he gets access to a machine...

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sat, Jan 04, 2003 at 02:38:15PM -0500, John David Anglin wrote:
> This has been around for awhile.  When using a SMP configuration, the
> program expect "causes" a segmentation fault that results in do_page_fault()
> going into an infinite loop.  The log data repeats indefinitely and
> eventually fills /var.  For some reason, expect is not killed by the kernel
> when this happens, although the loop can be broken by manually killing it.

This on gsyprf11? (running SMP 2.4.20-pa13 on a500-65)

I'm hoping this is unrelated to my entry.S changes.
But is certainly sounds like that kind of problem.

In -pa12, Randolph and I fixed:
| revision 1.98
| date: 2002/12/09 06:09:08;  author: tausq;  state: Exp;  lines: +2 -2
| -pa12
| fix interruption return path so that it will process signals after
| handle_interruption()
| (thanks to Grant for pointing this out)

Since I broken this with -pa11, maybe the rebuild of -pa13 picked
up the old -pa11 entry.o?
I'll rebuild from scratch to rule this out and reboot gsyprf11.

Perhaps a user space signal handler is interfering?

BTW, appended is one "expect" segfault info from dmesg ouput.
Dmesg output is filled with the same PID and AFAICT the register dumps
look identical too. "infinite" is about right.

grant

do_page_fault() pid=28552 command='expect' type=15 address=0x00000014

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  0000000000000000 fffffffffffffffa 00000000403309c4 00000000403309d4
r04-07  0000000040330970 000000004032ea28 0000000000000063 000000004032ea28
r08-11  0000000000021110 0000000000205ff4 0000000000000006 0000000000003b1b
r12-15  0000000000000001 0000000000000000 0000000000207d40 0000000000000001
r16-19  0000000000000000 0000000000000001 0000000000000000 000000004032ea28
r20-23  000000000000000b 000000000000000c 0000000000205628 00000000002055f8
r24-27  0000000000000030 0000000000000000 0000000040330970 0000000000020d44
r28-31  0000000000000002 00000000403309e8 00000000faf05a40 0000000000000000
sr0-3   000000000037b780 000000000037b780 0000000000000000 000000000037b780
sr4-7   000000000037b780 000000000037b780 000000000037b780 000000000037b780

IASQ: 000000000037b780 000000000037b780 IAOQ: 000000004025b45f 000000004025b463
IIR: 0eb41290    ISR: 000000000037b780  IOR: 0000000000000014
CPU:        1   CR30: 0000000030754000 CR31: 0000000000008020
ORIG_R28: 0000000000000002



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> On Sat, Jan 04, 2003 at 02:38:15PM -0500, John David Anglin wrote:
> > This has been around for awhile.  When using a SMP configuration, the
> > program expect "causes" a segmentation fault that results in do_page_fault()
> > going into an infinite loop.  The log data repeats indefinitely and
> > eventually fills /var.  For some reason, expect is not killed by the kernel
> > when this happens, although the loop can be broken by manually killing it.
> 
> This on gsyprf11? (running SMP 2.4.20-pa13 on a500-65)

We were running 2.4.20-pa18 earlier today.  I rebooted to see if
that would help and SMP 2.4.20-pa13 came up.  It think the sample
fault below was on 2.4.20-pa18.

> I'm hoping this is unrelated to my entry.S changes.

Possibly, this is involved.  The IAOQ below points to an address in
the dynamic loader or a shared library.  I tried building a static
version of expect to see if I could locate which code was causing
the problem but it didn't work at all.  It caused page faults in
what was possibly a syscall.  The return pointer was still above
0x40000000.

> But is certainly sounds like that kind of problem.
> 
> In -pa12, Randolph and I fixed:
> | revision 1.98
> | date: 2002/12/09 06:09:08;  author: tausq;  state: Exp;  lines: +2 -2
> | -pa12
> | fix interruption return path so that it will process signals after
> | handle_interruption()
> | (thanks to Grant for pointing this out)
> 
> Since I broken this with -pa11, maybe the rebuild of -pa13 picked
> up the old -pa11 entry.o?

Don't know.  However, I haven't seen the hang during gcc's configure
process.  That's where I first noticed the page fault problem that
you and Randolph fixed above.

> I'll rebuild from scratch to rule this out and reboot gsyprf11.
> 
> Perhaps a user space signal handler is interfering?
> 
> BTW, appended is one "expect" segfault info from dmesg ouput.
> Dmesg output is filled with the same PID and AFAICT the register dumps
> look identical too. "infinite" is about right.
> 
> grant
> 
> do_page_fault() pid=28552 command='expect' type=15 address=0x00000014
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111 Not tainted
> r00-03  0000000000000000 fffffffffffffffa 00000000403309c4 00000000403309d4
> r04-07  0000000040330970 000000004032ea28 0000000000000063 000000004032ea28
> r08-11  0000000000021110 0000000000205ff4 0000000000000006 0000000000003b1b
> r12-15  0000000000000001 0000000000000000 0000000000207d40 0000000000000001
> r16-19  0000000000000000 0000000000000001 0000000000000000 000000004032ea28
> r20-23  000000000000000b 000000000000000c 0000000000205628 00000000002055f8
> r24-27  0000000000000030 0000000000000000 0000000040330970 0000000000020d44
> r28-31  0000000000000002 00000000403309e8 00000000faf05a40 0000000000000000
> sr0-3   000000000037b780 000000000037b780 0000000000000000 000000000037b780
> sr4-7   000000000037b780 000000000037b780 000000000037b780 000000000037b780
> 
> IASQ: 000000000037b780 000000000037b780 IAOQ: 000000004025b45f 000000004025b463
> IIR: 0eb41290    ISR: 000000000037b780  IOR: 0000000000000014
> CPU:        1   CR30: 0000000030754000 CR31: 0000000000008020
> ORIG_R28: 0000000000000002
> 
> 

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Perhaps a user space signal handler is interfering?

I believe expect uses alarm to handle timeouts.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Thu, Jan 02, 2003 at 10:17:15PM -0700, Grant Grundler wrote:
> Does it? are the 64-bit slots 3.3v only?

Yep.  Thought that was part of the PCI spec, though maybe I'm confused with
66MHz.

> > Has anyone before succeeded in accessing mmio space of PCI
> > card attached to the 32bit PCI bus of the C240 ?
> 
> SCSI is accessed that way. tulip driver can be tweaked to use MMIO
> if you don't have any 100BT GSC (card-mode Dino) cards.

umm.. I thought cardmode MMIO was working now on B/C/J class machines.
I think D/K/R still have resource management issues.

> > 00:01.0 VGA compatible controller: Matrox Graphics, Inc. MGA 2164W [Millennium II] (prog-if 00 [VGA])
> > 	Subsystem: Matrox Graphics, Inc.: Unknown device 2003
> > 	Flags: medium devsel, IRQ 97
> > 	Memory at f9000000 (32-bit, prefetchable) [size=16M]
> > 	Memory at f3ffc000 (32-bit, non-prefetchable) [size=16K]
> > 	Memory at f2800000 (32-bit, non-prefetchable) [size=8M]
> > 	Expansion ROM at f3f80000 [disabled] [size=64K]
> 
> Looks like PDC/IODC did it's thing.
> Look at matrox drivers to make sure they are calling
> "pci_device_enable()" and ioremap() before attempting to access
> the device.
> 
> Check /proc/iomem to see which PCI bus controller
> this is getting routed through and that the system
> has correctly identified the MMIO resources.
> 
> It's interesting one device has MMIO at both 0xf2800000
> and 0xf9000000 since it would imply one PCI controller is supposed
> to forward the entire range of addresses. But Dino only forwards
> (any number of) 8MB chunks between 0xf0800000 and 0xff800000 (except
> the first and last 8MB chunks).

I think this may well be the problem.  I bet Dino hasn't been programmed
to forward the 16MB range at f900'0000, and Linux has just found an
unused bit of address space and allocated it to the Matrox card.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Xref: news.gmane.org gmane.linux.ports.parisc:17260

Hi:
I have a spare Geforce4 PCI card. Would it be possible using it in a 712 or a 735 ?
What about Voodoo >2, vodoo3, voodoo4, etc?
I would thank URLs about it.
Thank you very much.

Chema.


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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Generic RTC driver in 2.4.x?
Date: Sun, 5 Jan 2003 15:44:20 +0100 (MET)
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Cc: Randolph Chung <randolph@tausq.org>,
	parisc-linux@parisc-linux.org,
	Linux/PPC Development <linuxppc-dev@lists.linuxppc.org>,
	Linux/m68k <linux-m68k@lists.linux-m68k.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>
To: Tom Rini <trini@kernel.crashing.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:17261

On Sat, 28 Dec 2002, Geert Uytterhoeven wrote:
> On Thu, 26 Dec 2002, Tom Rini wrote:
> > On Tue, Dec 24, 2002 at 03:51:47PM -0800, Randolph Chung wrote:
> > > > AFAIK the generic RTC driver is used on PA-RISC, PPC, and m68k.
> > > >
> > > > Are you interested in a backport to 2.4.x?
> > >
> > > On parisc we already have a version of the generic RTC driver in our
> > > 2.4 tree. If there's something more "official" or common we can adopt
> > > that version.
> >
> > Similarly, PPC has had it's own 'generic' RTC driver in the kernel for
> > ages, so there's no pressing need, but if the 2.5 version makes its way
> > back into 2.4 (as the 2.5 version has some minor changes needed for
> > everyone which weren't in the 2.4 m68k version), we can easily switch to
> > that version.
> 
> I already merged some of your 2.5.x changes with the driver in the m68k 2.4.x
> tree.
> 
> I'll do some more merges, and get back to you...

The following patch adds the generic RTC driver to 2.4.20 (applies fine to
2.4.21-pre2). This driver provides a /dev/rtc-compatible interface to the real
time clock on machines without a PC-style RTC chip. It is used as the primary
RTC driver on m68k, pa-risc, and ppc. This driver is already present in 2.5.x.

Pa-risc and ppc people (any other users?), please send me your enhancements (or
just ack if none are necessary), so I can send genrtc to Marcelo.

Thanks!

 Documentation/Configure.help            |   28 +
 arch/m68k/config.in                     |    5 
 arch/m68k/kernel/m68k_ksyms.c           |    5 
 arch/m68k/kernel/setup.c                |    3 
 arch/m68k/q40/config.c                  |   41 ++
 drivers/char/Makefile                   |    1 
 include/asm-m68k/machdep.h              |    4 
 include/asm-m68k/rtc.h                  |   44 ++
 include/linux/rtc.h                     |   28 +
 linux-m68k-2.4.20/drivers/char/genrtc.c |  524 ++++++++++++++++++++++++++++++++ 10 files changed, 678 insertions, 5 deletions

--- linux-2.4.20/Documentation/Configure.help	Tue Oct 29 18:40:45 2002
+++ linux-m68k-2.4.20/Documentation/Configure.help	Wed Oct 16 11:01:53 2002
@@ -18959,6 +18959,34 @@
   The module is called rtc.o. If you want to compile it as a module,
   say M here and read <file:Documentation/modules.txt>.
 
+Generic Real Time Clock Support
+CONFIG_GEN_RTC
+  If you say Y here and create a character special file /dev/rtc with
+  major number 10 and minor number 135 using mknod ("man mknod"), you
+  will get access to the real time clock (or hardware clock) built
+  into your computer.
+
+  In 2.4 and later kernels this is the only way to set and get rtc
+  time on m68k systems so it is highly recommended.
+
+  It reports status information via the file /proc/driver/rtc and its 
+  behaviour is set by various ioctls on /dev/rtc. If you enable the
+  "extended RTC operation" below it will also provide an emulation
+  for RTC_UIE which is required by some programs and may improve
+  precision in some cases.
+
+  This driver is also available as a module ( = code which can be
+  inserted in and removed from the running kernel whenever you want).
+  The module is called genrtc.o. If you want to compile it as a module,
+  say M here and read <file:Documentation/modules.txt>. To load the
+  module automaticaly add 'alias char-major-10-135 genrtc' to your
+  /etc/modules.conf
+
+Extended RTC operation
+CONFIG_GEN_RTC_X
+  Provides an emulation for RTC_UIE which is required by some programs 
+  and may improve precision of the generic RTC support in some cases.
+
 Tadpole ANA H8 Support
 CONFIG_H8
   The Hitachi H8/337 is a microcontroller used to deal with the power
--- linux-2.4.20/arch/m68k/config.in	Fri Sep 13 10:14:59 2002
+++ linux-m68k-2.4.20/arch/m68k/config.in	Tue Aug 13 09:14:30 2002
@@ -517,8 +517,11 @@
    if [ "$CONFIG_SUN3" = "y" ]; then
       define_bool CONFIG_GEN_RTC y
    else
-      bool 'Generic /dev/rtc emulation' CONFIG_GEN_RTC
+      tristate 'Generic /dev/rtc emulation' CONFIG_GEN_RTC      
    fi
+fi
+if [ "$CONFIG_GEN_RTC" != "n" ]; then
+   bool '   Extended RTC operation' CONFIG_GEN_RTC_X
 fi
 bool 'Unix98 PTY support' CONFIG_UNIX98_PTYS
 if [ "$CONFIG_UNIX98_PTYS" = "y" ]; then
--- linux-2.4.20/arch/m68k/kernel/m68k_ksyms.c	Thu Jan  4 22:00:55 2001
+++ linux-m68k-2.4.20/arch/m68k/kernel/m68k_ksyms.c	Fri Mar  1 12:29:44 2002
@@ -18,6 +18,7 @@
 #include <asm/checksum.h>
 #include <asm/hardirq.h>
 #include <asm/softirq.h>
+#include <asm/rtc.h>
 
 asmlinkage long long __ashldi3 (long long, int);
 asmlinkage long long __ashrdi3 (long long, int);
@@ -49,6 +50,10 @@
 EXPORT_SYMBOL(kernel_set_cachemode);
 #endif /* !CONFIG_SUN3 */
 EXPORT_SYMBOL(m68k_debug_device);
+EXPORT_SYMBOL(mach_hwclk);
+EXPORT_SYMBOL(mach_get_ss);
+EXPORT_SYMBOL(mach_get_rtc_pll);
+EXPORT_SYMBOL(mach_set_rtc_pll);
 EXPORT_SYMBOL(dump_fpu);
 EXPORT_SYMBOL(dump_thread);
 EXPORT_SYMBOL(strnlen);
--- linux-2.4.20/arch/m68k/kernel/setup.c	Fri Sep 13 10:15:01 2002
+++ linux-m68k-2.4.20/arch/m68k/kernel/setup.c	Mon Sep  9 13:07:29 2002
@@ -90,6 +90,9 @@
 void (*mach_gettod) (int*, int*, int*, int*, int*, int*);
 int (*mach_hwclk) (int, struct rtc_time*) = NULL;
 int (*mach_set_clock_mmss) (unsigned long) = NULL;
+unsigned int (*mach_get_ss)(void) = NULL;
+int (*mach_get_rtc_pll)(struct rtc_pll_info *) = NULL;
+int (*mach_set_rtc_pll)(struct rtc_pll_info *) = NULL;
 void (*mach_reset)( void );
 void (*mach_halt)( void ) = NULL;
 void (*mach_power_off)( void ) = NULL;
--- linux-2.4.20/arch/m68k/q40/config.c	Fri Sep 13 10:15:02 2002
+++ linux-m68k-2.4.20/arch/m68k/q40/config.c	Mon Sep  9 13:07:29 2002
@@ -58,7 +58,10 @@
 extern void q40_gettod (int *year, int *mon, int *day, int *hour,
                            int *min, int *sec);
 extern int q40_hwclk (int, struct rtc_time *);
+extern unsigned int q40_get_ss (void);
 extern int q40_set_clock_mmss (unsigned long);
+static int q40_get_rtc_pll(struct rtc_pll_info *pll);
+static int q40_set_rtc_pll(struct rtc_pll_info *pll);
 extern void q40_reset (void);
 void q40_halt(void);
 extern void q40_waitbut(void);
@@ -196,6 +199,9 @@
     mach_gettimeoffset   = q40_gettimeoffset; 
     mach_gettod  	 = q40_gettod;
     mach_hwclk           = q40_hwclk; 
+    mach_get_ss          = q40_get_ss; 
+    mach_get_rtc_pll     = q40_get_rtc_pll; 
+    mach_set_rtc_pll     = q40_set_rtc_pll; 
     mach_set_clock_mmss	 = q40_set_clock_mmss;
 
     mach_reset		 = q40_reset;
@@ -331,6 +337,11 @@
 	return 0;
 }
 
+unsigned int q40_get_ss()
+{
+	return bcd2bin(Q40_RTC_SECS);
+}
+
 /*
  * Set the minutes and seconds from seconds value 'nowtime'.  Fail if
  * clock is out by > 30 minutes.  Logic lifted from atari code.
@@ -362,3 +373,33 @@
 	return retval;
 }
 
+
+/* get and set PLL calibration of RTC clock */
+#define Q40_RTC_PLL_MASK ((1<<5)-1)
+#define Q40_RTC_PLL_SIGN (1<<5)
+
+static int q40_get_rtc_pll(struct rtc_pll_info *pll)
+{
+      int tmp=Q40_RTC_CTRL;
+      pll->pll_value = tmp & Q40_RTC_PLL_MASK;
+      if (tmp & Q40_RTC_PLL_SIGN) 
+	  pll->pll_value = -pll->pll_value;
+      pll->pll_max=31;
+      pll->pll_min=-31;
+      pll->pll_posmult=512;
+      pll->pll_negmult=256;
+      pll->pll_clock=125829120;
+      return 0;
+  }
+
+static int q40_set_rtc_pll(struct rtc_pll_info *pll)
+{
+  if (!pll->pll_ctrl){
+      /* the docs are a bit unclear so I am doublesetting RTC_WRITE here ... */
+      int tmp=(pll->pll_value & 31) | (pll->pll_value<0 ? 32 : 0) | Q40_RTC_WRITE;
+      Q40_RTC_CTRL |= Q40_RTC_WRITE;
+      Q40_RTC_CTRL = tmp;
+      Q40_RTC_CTRL &= ~(Q40_RTC_WRITE);
+      return 0;
+  } else return -EINVAL;
+}
--- linux-2.4.20/drivers/char/Makefile	Wed Nov 27 11:02:06 2002
+++ linux-m68k-2.4.20/drivers/char/Makefile	Tue Nov 26 13:24:32 2002
@@ -222,6 +222,7 @@
 obj-$(CONFIG_PC110_PAD) += pc110pad.o
 obj-$(CONFIG_MK712_MOUSE) += mk712.o
 obj-$(CONFIG_RTC) += rtc.o
+obj-$(CONFIG_GEN_RTC) += genrtc.o
 obj-$(CONFIG_EFI_RTC) += efirtc.o
 ifeq ($(CONFIG_PPC),)
   obj-$(CONFIG_NVRAM) += nvram.o
--- /dev/null	Mon Mar 18 12:17:27 2002
+++ linux-m68k-2.4.20/drivers/char/genrtc.c	Sun Jan  5 15:24:28 2003
@@ -0,0 +1,524 @@
+/*
+ *	Real Time Clock interface for q40 and other m68k machines
+ *      emulate some RTC irq capabilities in software
+ *
+ *      Copyright (C) 1999 Richard Zidlicky
+ *
+ *	based on Paul Gortmaker's rtc.c device and
+ *           Sam Creasey Generic rtc driver
+ *
+ *	This driver allows use of the real time clock (built into
+ *	nearly all computers) from user space. It exports the /dev/rtc
+ *	interface supporting various ioctl() and also the /proc/dev/rtc
+ *	pseudo-file for status information.
+ *
+ *	The ioctls can be used to set the interrupt behaviour where
+ *  supported.
+ *
+ *	The /dev/rtc interface will block on reads until an interrupt
+ *	has been received. If a RTC interrupt has already happened,
+ *	it will output an unsigned long and then block. The output value
+ *	contains the interrupt status in the low byte and the number of
+ *	interrupts since the last read in the remaining high bytes. The
+ *	/dev/rtc interface can also be used with the select(2) call.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+
+ *      1.01 fix for 2.3.X                    rz@linux-m68k.org
+ *      1.02 merged with code from genrtc.c   rz@linux-m68k.org
+ *      1.03 make it more portable            zippel@linux-m68k.org
+ *      1.04 removed useless timer code       rz@linux-m68k.org
+ *      1.05 portable RTC_UIE emulation       rz@linux-m68k.org
+ *      1.06 set_rtc_time can return an error trini@kernel.crashing.org
+ */
+
+#define RTC_VERSION	"1.06"
+
+#include <linux/module.h>
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/miscdevice.h>
+#include <linux/fcntl.h>
+
+#include <linux/rtc.h>
+#include <linux/init.h>
+#include <linux/poll.h>
+#include <linux/proc_fs.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/rtc.h>
+
+/*
+ *	We sponge a minor off of the misc major. No need slurping
+ *	up another valuable major dev number for this. If you add
+ *	an ioctl, make sure you don't conflict with SPARC's RTC
+ *	ioctls.
+ */
+
+static DECLARE_WAIT_QUEUE_HEAD(gen_rtc_wait);
+
+static int gen_rtc_ioctl(struct inode *inode, struct file *file,
+		     unsigned int cmd, unsigned long arg);
+
+/*
+ *	Bits in gen_rtc_status.
+ */
+
+#define RTC_IS_OPEN		0x01	/* means /dev/rtc is in use	*/
+
+unsigned char gen_rtc_status;		/* bitmapped status byte.	*/
+unsigned long gen_rtc_irq_data;		/* our output to the world	*/
+
+/* months start at 0 now */
+unsigned char days_in_mo[] =
+{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
+
+static int irq_active;
+
+#ifdef CONFIG_GEN_RTC_X
+struct tq_struct genrtc_task;
+static struct timer_list timer_task;
+
+static unsigned int oldsecs;
+static int lostint;
+static int tt_exp;
+
+void gen_rtc_timer(unsigned long data);
+
+static volatile int stask_active;              /* schedule_task */
+static volatile int ttask_active;              /* timer_task */
+static int stop_rtc_timers;                    /* don't requeue tasks */
+static spinlock_t gen_rtc_lock = SPIN_LOCK_UNLOCKED;
+
+/*
+ * Routine to poll RTC seconds field for change as often as posible,
+ * after first RTC_UIE use timer to reduce polling
+ */
+void genrtc_troutine(void *data)
+{
+	unsigned int tmp = get_rtc_ss();
+	
+	if (stop_rtc_timers) {
+		stask_active = 0;
+		return;
+	}
+
+	if (oldsecs != tmp){
+		oldsecs = tmp;
+
+		timer_task.function = gen_rtc_timer;
+		timer_task.expires = jiffies + HZ - (HZ/10);
+		tt_exp=timer_task.expires;
+		ttask_active=1;
+		stask_active=0;
+		add_timer(&timer_task);
+
+		gen_rtc_interrupt(0);
+	} else if (schedule_task(&genrtc_task) == 0)
+		stask_active = 0;
+}
+
+void gen_rtc_timer(unsigned long data)
+{
+	lostint = get_rtc_ss() - oldsecs ;
+	if (lostint<0) 
+		lostint = 60 - lostint;
+	if (time_after(jiffies, tt_exp))
+		printk(KERN_INFO "genrtc: timer task delayed by %ld jiffies\n",
+		       jiffies-tt_exp);
+	ttask_active=0;
+	stask_active=1;
+	if ((schedule_task(&genrtc_task) == 0))
+		stask_active = 0;
+}
+
+/* 
+ * call gen_rtc_interrupt function to signal an RTC_UIE,
+ * arg is unused.
+ * Could be invoked either from a real interrupt handler or
+ * from some routine that periodically (eg 100HZ) monitors
+ * whether RTC_SECS changed
+ */
+void gen_rtc_interrupt(unsigned long arg)
+{
+	/*  We store the status in the low byte and the number of
+	 *	interrupts received since the last read in the remainder
+	 *	of rtc_irq_data.  */
+
+	gen_rtc_irq_data += 0x100;
+	gen_rtc_irq_data &= ~0xff;
+	gen_rtc_irq_data |= RTC_UIE;
+
+	if (lostint){
+		printk("genrtc: system delaying clock ticks?\n");
+		/* increment count so that userspace knows something is wrong */
+		gen_rtc_irq_data += ((lostint-1)<<8);
+		lostint = 0;
+	}
+
+	wake_up_interruptible(&gen_rtc_wait);
+}
+
+/*
+ *	Now all the various file operations that we export.
+ */
+static ssize_t gen_rtc_read(struct file *file, char *buf,
+			size_t count, loff_t *ppos)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	unsigned long data;
+	ssize_t retval;
+
+	if (count != sizeof (unsigned int) && count != sizeof (unsigned long))
+		return -EINVAL;
+
+	if (file->f_flags & O_NONBLOCK && !gen_rtc_irq_data)
+		return -EAGAIN;
+
+	add_wait_queue(&gen_rtc_wait, &wait);
+	retval = -ERESTARTSYS;
+
+	while (1) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		data = xchg(&gen_rtc_irq_data, 0);
+		if (data)
+			break;
+		if (signal_pending(current))
+			goto out;
+		schedule();
+	}
+
+	/* first test allows optimizer to nuke this case for 32-bit machines */
+	if (sizeof (int) != sizeof (long) && count == sizeof (unsigned int)) {
+		unsigned int uidata = data;
+		retval = put_user(uidata, (unsigned long *)buf);
+	}
+	else {
+		retval = put_user(data, (unsigned long *)buf);
+	}
+	if (!retval)
+		retval = sizeof(unsigned long);
+ out:
+	current->state = TASK_RUNNING;
+	remove_wait_queue(&gen_rtc_wait, &wait);
+
+	return retval;
+}
+
+static unsigned int gen_rtc_poll(struct file *file,
+				 struct poll_table_struct *wait)
+{
+	poll_wait(file, &gen_rtc_wait, wait);
+	if (gen_rtc_irq_data != 0)
+		return POLLIN | POLLRDNORM;
+	return 0;
+}
+
+#endif
+
+/*
+ * Used to disable/enable interrupts, only RTC_UIE supported
+ * We also clear out any old irq data after an ioctl() that
+ * meddles with the interrupt enable/disable bits.
+ */
+
+static inline void gen_clear_rtc_irq_bit(unsigned char bit)
+{
+#ifdef CONFIG_GEN_RTC_X
+	stop_rtc_timers = 1;
+	if (ttask_active){
+		del_timer_sync(&timer_task);
+		ttask_active = 0;
+	}
+	while (stask_active)
+		schedule();
+
+	spin_lock(&gen_rtc_lock);
+	irq_active = 0;
+	spin_unlock(&gen_rtc_lock);
+#endif
+}
+
+static inline int gen_set_rtc_irq_bit(unsigned char bit)
+{
+#ifdef CONFIG_GEN_RTC_X
+	spin_lock(&gen_rtc_lock);
+	if ( !irq_active ) {
+		irq_active = 1;
+		stop_rtc_timers = 0;
+		lostint = 0;
+		genrtc_task.routine = genrtc_troutine;
+		oldsecs = get_rtc_ss();
+		init_timer(&timer_task);
+
+		stask_active = 1;
+		if (schedule_task(&genrtc_task) == 0){
+			stask_active = 0;
+		}
+	}
+	spin_unlock(&gen_rtc_lock);
+	gen_rtc_irq_data = 0;
+	return 0;
+#else
+	return -EINVAL;
+#endif
+}
+
+static int gen_rtc_ioctl(struct inode *inode, struct file *file,
+			 unsigned int cmd, unsigned long arg)
+{
+	struct rtc_time wtime;
+	struct rtc_pll_info pll;
+
+	switch (cmd) {
+
+	case RTC_PLL_GET:
+	    if (get_rtc_pll(&pll))
+	 	    return -EINVAL;
+	    else
+		    return copy_to_user((void *)arg, &pll, sizeof pll) ? -EFAULT : 0;
+
+	case RTC_PLL_SET:
+		if (!capable(CAP_SYS_TIME))
+			return -EACCES;
+		if (copy_from_user(&pll, (struct rtc_pll_info*)arg,
+				   sizeof(pll)))
+			return -EFAULT;
+	    return set_rtc_pll(&pll);
+
+	case RTC_UIE_OFF:	/* disable ints from RTC updates.	*/
+		gen_clear_rtc_irq_bit(RTC_UIE);
+		return 0;
+
+	case RTC_UIE_ON:	/* enable ints for RTC updates.	*/
+	        return gen_set_rtc_irq_bit(RTC_UIE);
+
+	case RTC_RD_TIME:	/* Read the time/date from RTC	*/
+		/* this doesn't get week-day, who cares */
+		memset(&wtime, 0, sizeof(wtime));
+		get_rtc_time(&wtime);
+
+		return copy_to_user((void *)arg, &wtime, sizeof(wtime)) ? -EFAULT : 0;
+
+	case RTC_SET_TIME:	/* Set the RTC */
+	    {
+		int year;
+		unsigned char leap_yr;
+
+		if (!capable(CAP_SYS_TIME))
+			return -EACCES;
+
+		if (copy_from_user(&wtime, (struct rtc_time *)arg,
+				   sizeof(wtime)))
+			return -EFAULT;
+
+		year = wtime.tm_year + 1900;
+		leap_yr = ((!(year % 4) && (year % 100)) ||
+			   !(year % 400));
+
+		if ((wtime.tm_mon < 0 || wtime.tm_mon > 11) || (wtime.tm_mday < 1))
+			return -EINVAL;
+
+		if (wtime.tm_mday < 0 || wtime.tm_mday >
+		    (days_in_mo[wtime.tm_mon] + ((wtime.tm_mon == 1) && leap_yr)))
+			return -EINVAL;
+
+		if (wtime.tm_hour < 0 || wtime.tm_hour >= 24 ||
+		    wtime.tm_min < 0 || wtime.tm_min >= 60 ||
+		    wtime.tm_sec < 0 || wtime.tm_sec >= 60)
+			return -EINVAL;
+
+		return set_rtc_time(&wtime);
+	    }
+	}
+
+	return -EINVAL;
+}
+
+/*
+ *	We enforce only one user at a time here with the open/close.
+ *	Also clear the previous interrupt data on an open, and clean
+ *	up things on a close.
+ */
+
+static int gen_rtc_open(struct inode *inode, struct file *file)
+{
+	if (gen_rtc_status & RTC_IS_OPEN)
+		return -EBUSY;
+
+	MOD_INC_USE_COUNT;
+
+	gen_rtc_status |= RTC_IS_OPEN;
+	gen_rtc_irq_data = 0;
+	irq_active = 0;
+
+	return 0;
+}
+
+static int gen_rtc_release(struct inode *inode, struct file *file)
+{
+	/*
+	 * Turn off all interrupts once the device is no longer
+	 * in use and clear the data.
+	 */
+
+	gen_clear_rtc_irq_bit(RTC_PIE|RTC_AIE|RTC_UIE);
+
+	gen_rtc_status &= ~RTC_IS_OPEN;
+	MOD_DEC_USE_COUNT;
+
+	return 0;
+}
+
+static int gen_rtc_read_proc(char *page, char **start, off_t off,
+			     int count, int *eof, void *data);
+
+
+/*
+ *	The various file operations we support.
+ */
+
+static struct file_operations gen_rtc_fops = {
+	owner:		THIS_MODULE,
+#ifdef CONFIG_GEN_RTC_X
+	read:		gen_rtc_read,
+	poll:		gen_rtc_poll,
+#endif
+	ioctl:		gen_rtc_ioctl,
+	open:		gen_rtc_open,
+	release:	gen_rtc_release
+};
+
+static struct miscdevice rtc_gen_dev =
+{
+	RTC_MINOR,
+	"rtc",
+	&gen_rtc_fops
+};
+
+int __init rtc_generic_init(void)
+{
+
+		printk(KERN_INFO "Generic RTC Driver v%s\n", RTC_VERSION);
+
+	misc_register(&rtc_gen_dev);
+	create_proc_read_entry ("driver/rtc", 0, 0, gen_rtc_read_proc, NULL);
+
+	return 0;
+}
+
+static void __exit rtc_generic_exit(void)
+{
+	remove_proc_entry ("driver/rtc", NULL);
+	misc_deregister(&rtc_gen_dev);
+}
+
+module_init(rtc_generic_init);
+module_exit(rtc_generic_exit);
+EXPORT_NO_SYMBOLS;
+
+
+/*
+ *	Info exported via "/proc/rtc".
+ */
+
+int gen_rtc_proc_output(char *buf)
+{
+	char *p;
+	struct rtc_time tm;
+	unsigned tmp;
+	struct rtc_pll_info pll;
+
+	p = buf;
+
+	get_rtc_time(&tm);
+
+	p += sprintf(p,
+		     "rtc_time\t: %02d:%02d:%02d\n"
+		     "rtc_date\t: %04d-%02d-%02d\n"
+		     "rtc_epoch\t: %04u\n",
+		     tm.tm_hour, tm.tm_min, tm.tm_sec,
+		     tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, 1900);
+
+	tm.tm_hour=0;tm.tm_min=0;tm.tm_sec=0;
+
+	p += sprintf(p, "alarm\t\t: ");
+	if (tm.tm_hour <= 24)
+		p += sprintf(p, "%02d:", tm.tm_hour);
+	else
+		p += sprintf(p, "**:");
+
+	if (tm.tm_min <= 59)
+		p += sprintf(p, "%02d:", tm.tm_min);
+	else
+		p += sprintf(p, "**:");
+
+	if (tm.tm_sec <= 59)
+		p += sprintf(p, "%02d\n", tm.tm_sec);
+	else
+		p += sprintf(p, "**\n");
+
+	tmp= RTC_24H ;
+	p += sprintf(p,
+		     "DST_enable\t: %s\n"
+		     "BCD\t\t: %s\n"
+		     "24hr\t\t: %s\n"
+		     "square_wave\t: %s\n"
+		     "alarm_IRQ\t: %s\n"
+		     "update_IRQ\t: %s\n"
+		     "periodic_IRQ\t: %s\n"
+		     "periodic_freq\t: %ld\n"
+		     "batt_status\t: %s\n",
+		     (tmp & RTC_DST_EN) ? "yes" : "no",
+		     (tmp & RTC_DM_BINARY) ? "no" : "yes",
+		     (tmp & RTC_24H) ? "yes" : "no",
+		     (tmp & RTC_SQWE) ? "yes" : "no",
+		     (tmp & RTC_AIE) ? "yes" : "no",
+		     irq_active ? "yes" : "no",
+		     (tmp & RTC_PIE) ? "yes" : "no",
+		     0L /* freq */,
+		     "okay" );
+	if (!get_rtc_pll(&pll))
+	    p += sprintf(p,
+			 "PLL adjustment\t: %d\n"
+			 "PLL max +ve adjustment\t: %d\n"
+			 "PLL max -ve adjustment\t: %d\n"
+			 "PLL +ve adjustment factor\t: %d\n"
+			 "PLL -ve adjustment factor\t: %d\n"
+			 "PLL frequency\t: %ld\n",
+			 pll.pll_value,
+			 pll.pll_max,
+			 pll.pll_min,
+			 pll.pll_posmult,
+			 pll.pll_negmult,
+			 pll.pll_clock);
+	return  p - buf;
+}
+
+static int gen_rtc_read_proc(char *page, char **start, off_t off,
+			     int count, int *eof, void *data)
+{
+	int len = gen_rtc_proc_output (page);
+        if (len <= off+count) *eof = 1;
+	*start = page + off;
+	len -= off;
+        if (len>count) len = count;
+        if (len<0) len = 0;
+	return len;
+}
+
+
+MODULE_AUTHOR("Richard Zidlicky");
+MODULE_LICENSE("GPL");
+
+/*
+ * Local variables:
+ * compile-command: "m68k-linux-gcc -D__KERNEL__ -I../../include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -pipe -fno-strength-reduce -ffixed-a2 -c -o genrtc.o genrtc.c"
+ * End:
+ */
+
--- linux-2.4.20/include/asm-m68k/machdep.h	Wed May 29 10:14:12 2002
+++ linux-m68k-2.4.20/include/asm-m68k/machdep.h	Mon Sep  9 13:07:29 2002
@@ -5,6 +5,7 @@
 struct kbd_repeat;
 struct mktime;
 struct rtc_time;
+struct rtc_pll_info;
 struct gendisk;
 struct buffer_head;
 
@@ -29,6 +30,9 @@
 extern void (*mach_gettod)(int *year, int *mon, int *day, int *hour,
 			   int *min, int *sec);
 extern int (*mach_hwclk)(int, struct rtc_time*);
+extern unsigned int (*mach_get_ss)(void);
+extern int (*mach_get_rtc_pll)(struct rtc_pll_info *);
+extern int (*mach_set_rtc_pll)(struct rtc_pll_info *);
 extern int (*mach_set_clock_mmss)(unsigned long);
 extern void (*mach_reset)( void );
 extern void (*mach_halt)( void );
--- linux-2.4.20/include/asm-m68k/rtc.h	Wed May 29 10:14:13 2002
+++ linux-m68k-2.4.20/include/asm-m68k/rtc.h	Sun Jan  5 15:24:28 2003
@@ -13,9 +13,8 @@
 
 #ifdef __KERNEL__
 
-#include <linux/config.h>
 #include <linux/rtc.h>
-#include <linux/delay.h>
+#include <asm/errno.h>
 #include <asm/machdep.h>
 
 #define RTC_PIE 0x40		/* periodic interrupt enable */
@@ -30,7 +29,48 @@
 #define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
 #define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
 
+static inline void get_rtc_time(struct rtc_time *time)
+{
+	/*
+	 * Only the values that we read from the RTC are set. We leave
+	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
+	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
+	 * by the RTC when initially set to a non-zero value.
+	 */
+	mach_hwclk(0, time);
+}
 
+static inline int set_rtc_time(struct rtc_time *time)
+{
+	return mach_hwclk(1, time);
+}
+
+static inline unsigned int get_rtc_ss(void)
+{
+	if (mach_get_ss)
+		return mach_get_ss();
+	else{
+		struct rtc_time h;
+		
+		get_rtc_time(&h);
+		return h.tm_sec;
+	}
+}
+
+static inline int get_rtc_pll(struct rtc_pll_info *pll)
+{
+	if (mach_get_rtc_pll)
+		return mach_get_rtc_pll(pll);
+	else
+		return -EINVAL;
+}
+static inline int set_rtc_pll(struct rtc_pll_info *pll)
+{
+	if (mach_set_rtc_pll)
+		return mach_set_rtc_pll(pll);
+	else
+		return -EINVAL;
+}
 #endif /* __KERNEL__ */
 
 #endif /* _ASM__RTC_H */
--- linux-2.4.20/include/linux/rtc.h	Mon Feb 19 09:47:19 2001
+++ linux-m68k-2.4.20/include/linux/rtc.h	Sun Jan  5 15:24:28 2003
@@ -39,10 +39,32 @@
 	struct rtc_time time;	/* time the alarm is set to */
 };
 
+/*
+ * Data structure to control PLL correction some better RTC feature
+ * pll_value is used to get or set current value of correction,
+ * the rest of the struct is used to query HW capabilities.
+ * This is modeled after the RTC used in Q40/Q60 computers but
+ * should be sufficiently flexible for other devices
+ *
+ * +ve pll_value means clock will run faster by
+ *   pll_value*pll_posmult/pll_clock
+ * -ve pll_value means clock will run slower by
+ *   pll_value*pll_negmult/pll_clock
+ */ 
+
+struct rtc_pll_info {
+	int pll_ctrl;       /* placeholder for fancier control */
+	int pll_value;      /* get/set correction value */
+	int pll_max;        /* max +ve (faster) adjustment value */
+	int pll_min;        /* max -ve (slower) adjustment value */
+	int pll_posmult;    /* factor for +ve corection */
+	int pll_negmult;    /* factor for -ve corection */
+	long pll_clock;     /* base PLL frequency */
+};
 
 /*
- * ioctl calls that are permitted to the /dev/rtc interface, if 
- * CONFIG_RTC/CONFIG_EFI_RTC was enabled.
+ * ioctl calls that are permitted to the /dev/rtc interface, if
+ * any of the RTC drivers are enabled.
  */
 
 #define RTC_AIE_ON	_IO('p', 0x01)	/* Alarm int. enable on		*/
@@ -66,4 +88,6 @@
 #define RTC_WKALM_SET	_IOW('p', 0x0f, struct rtc_wkalrm)/* Set wakeup alarm*/
 #define RTC_WKALM_RD	_IOR('p', 0x10, struct rtc_wkalrm)/* Get wakeup alarm*/
 
+#define RTC_PLL_GET	_IOR('p', 0x11, struct rtc_pll_info)  /* Get PLL correction */
+#define RTC_PLL_SET	_IOW('p', 0x12, struct rtc_pll_info)  /* Set PLL correction */
 #endif /* _LINUX_RTC_H_ */

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds



From - Thu Nov 08 21:26:09 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] PCI video card.
Date: Sun, 5 Jan 2003 14:59:52 +0000
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On Sun, Jan 05, 2003 at 04:54:25PM -0500, Chema wrote:
> I have a spare Geforce4 PCI card. Would it be possible using it in a 712 or a 735 ?
> What about Voodoo >2, vodoo3, voodoo4, etc?
> I would thank URLs about it.

712 & 735 don't have PCI busses.  PCI is only available in machines with
Dino / Cujo / Elroy adapters.  That's B132-B180, C160-C360, J2240, B1000,
C3000, J5000 and up.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] Re: [PATCH][2.5.53] Memory leak in drivers/video/console/sticore.c
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On Sat, Dec 28, 2002 at 11:14:52PM -0300, Pablo Menichini wrote:
> This patch tries to fix the memory leak in function sti_init_glob_cfg.

sticore is somewhat out of date in Linus' tree -- probably better to
ignore drivers/video for cleanup work at the moment as there's some big
reworks in progress.  Even so, this patch is still mostly relevant --
I'll redo it in the PA-RISC tree shortly.  Thanks.

> --- linux-2.5.53/drivers/video/console/sticore.c	Sat Dec 28 18:39:32 2002
> +++ linux-local/drivers/video/console/sticore.c	Sat Dec 28 18:51:04 2002
> @@ -376,8 +376,17 @@
>  	save_addr = kmalloc(1024 /*XXX*/, GFP_KERNEL);
>  	sti_mem_addr = kmalloc(1024, GFP_KERNEL);
> 
> -	if((!glob_cfg) || (!glob_cfg_ext) || (!save_addr) || (!sti_mem_addr))
> +	if((!glob_cfg) || (!glob_cfg_ext) || (!save_addr) || (!sti_mem_addr)){
> +		if(glob_cfg)
> +			kfree(glob_cfg);
> +		if(glob_cfg_ext)
> +			kfree(glob_cfg_ext);
> +		if(save_addr)
> +			kfree(save_addr);
> +		if(sti_mem_addr)
> +			kfree(sti_mem_addr);
>  		return;
> +	}
> 
>  	memset(glob_cfg, 0, sizeof *glob_cfg);
>  	memset(glob_cfg_ext, 0, sizeof *glob_cfg_ext);

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Thanks Matthew:
so, do you mean those cards would work in such systems (Dino / Cujo / Elroy) ?
Thank you.

Chema.

On Sun, 5 Jan 2003 14:59:52 +0000
Matthew Wilcox <willy@debian.org> wrote:

> On Sun, Jan 05, 2003 at 04:54:25PM -0500, Chema wrote:
> > I have a spare Geforce4 PCI card. Would it be possible using it in a 712 or a 735 ?
> > What about Voodoo >2, vodoo3, voodoo4, etc?
> > I would thank URLs about it.
> 
> 712 & 735 don't have PCI busses.  PCI is only available in machines with
> Dino / Cujo / Elroy adapters.  That's B132-B180, C160-C360, J2240, B1000,
> C3000, J5000 and up.


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On Sun, Jan 05, 2003 at 05:25:14PM -0500, Chema wrote:
> Thanks Matthew:
> so, do you mean those cards would work in such systems (Dino / Cujo / Elroy) ?

Maybe.  It depends whether the driver supports fully initialising the card
or whether it requires the on-card BIOS to have been run.  Most fall into
the second category, alas.  This must surely be a FAQ by now ...

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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When I extract large tar files on my 735/99 (tar --numeric-owner -xzvpf ), 
the kernel panics and I get a core dump.

My kernel is: Linux version 2.4.20-pa18 (root@grumpy) (gcc version 3.0.4) #22 
Fri Dec 27 21:25:37 EST 2002

I saved a capture from minicom and have not upgraded the kernel since. I can 
mail the capture and my System.map separately.

If a new kernel or different version of gcc is needed, please let me know.



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>
>When I extract large tar files on my 735/99 (tar --numeric-owner -xzvpf
),
>
>the kernel panics and I get a core dump.

Interesting, can you explain me how do you grab this coredump?

>
>My kernel is: Linux version 2.4.20-pa18 (root@grumpy) (gcc version 3.0.4=
)
>#22 
>Fri Dec 27 21:25:37 EST 2002
>
>I saved a capture from minicom and have not upgraded the kernel since.

Firstly the minicom capture, would already tell more :)

Greetings,
    Joel


********************************************
Promo Tiscali ADSL: 35 Euros/mois, 1er mois et activation =3D 0 Euro http=
://adsl.tiscali.be





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On Mon, Jan 06, 2003 at 10:02:56AM +0100, jsoe0708@tiscali.be wrote:
> 
> >
> >When I extract large tar files on my 735/99 (tar --numeric-owner -xzvpf
> ),
> >
> >the kernel panics and I get a core dump.

FAQ #17

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sun, Jan 05, 2003 at 01:10:37PM +0000, Matthew Wilcox wrote:
> Yep.  Thought that was part of the PCI spec, though maybe I'm confused with
> 66MHz.

I think you are. 66Mhz operation requires 3.3v signaling.
AFAIK, both dino and cujo only run at 33Mhz *OR SLOWER* (eg 30Mhz).

However, HP did support only 3.3v for quite a while (at least on paper)
and I'm never quite sure which slots are 5v vs 3.3v.

> > SCSI is accessed that way. tulip driver can be tweaked to use MMIO
> > if you don't have any 100BT GSC (card-mode Dino) cards.
> 
> umm.. I thought cardmode MMIO was working now on B/C/J class machines.
> I think D/K/R still have resource management issues.

I don't recall all the details for card-mode.
My main point was the default is IO port space (CONFIG_TULIP_MMIO).

...
> > It's interesting one device has MMIO at both 0xf2800000
> > and 0xf9000000 since it would imply one PCI controller is supposed
> > to forward the entire range of addresses. But Dino only forwards
> > (any number of) 8MB chunks between 0xf0800000 and 0xff800000 (except
> > the first and last 8MB chunks).
> 
> I think this may well be the problem.  I bet Dino hasn't been programmed
> to forward the 16MB range at f900'0000, and Linux has just found an
> unused bit of address space and allocated it to the Matrox card.

Hmmm. /proc/iomem should tell us which ranges dino/cujo are forwarding.

But looking at dino.c, it's clear the code is not handling multiple
ranges correctly even if firmware did program it right.

        res = &dino_dev->hba.lmmio_space;

lmmio_space needs to be an array.
In HP speak, this is an "unsupported configuration". 

Elroy (lba_pci.c) suffers a similar problem with "directed ranges"
(code currently only handles "distributed ranges"). At some point
I'll get back to working on the lba code since it has a few other
minor oustanding issues as well.

grant


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Hi all,

Does somebody have already tested a pa kernel 2.4.20 configured as 'advan=
ce
router'.
Does it have some chance that it works?

Thanks in advance,
    Joel

PS: This is to configure a b180 as a small gateway-proxy :) and this is
requested in GIpTable?

********************************************
Promo Tiscali ADSL: 35 Euros/mois, 1er mois et activation =3D 0 Euro http=
://adsl.tiscali.be





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On Mon, 6 Jan 2003 12:32:05 -0800
"Steve Cornett" <stevec@bullseye.com> wrote:

> Thibaut,
> 
> Thanks for your answer, I was able to install using
> palinux-2.4.20-pa13-PDC-20021211-netinst.iso.
That's good news, and means that b-f on 3.0r1 doesn't suit your HW.
> 
> Now I've a different problem and not sure where to turn.  Whenever I
> compile and run a program that "throw"s an exception, I get "Memory
> fault".  I can't figure out where to report this problem.  The PARISC
> Linux people or the GCC people?
I'd say PARISC for two reasons:
- first, this is quite likely to be a kernel problem, and IIRC exception related stuff is worked on currently,
- secondly, because some of GCC folks are also PARISC m-l readers ;)

FWIW, please read FAQ #17 for kernel error reports.

Anyway, please always CC the m-l on such answer: if I haven't answered to that mail, those fellow pa-ckers would never have known 3.0r1 B-F were responsible for the trouble...

HTH,

Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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> > Now I've a different problem and not sure where to turn.  Whenever I
> > compile and run a program that "throw"s an exception, I get "Memory
> > fault".  I can't figure out where to report this problem.  The PARISC
> > Linux people or the GCC people?

You need to build/obtain either the 3.3 or main branch of GCC to obtain
working C++ exception support.  The dwarf2 eh support in debian 3.0.4 and
the GCC 3.2 branch was in development when that code was released and
doesn't work.  I am assuming you mean exception in the C++ sense.

> I'd say PARISC for two reasons:
> - first, this is quite likely to be a kernel problem, and IIRC exception related stuff is worked on currently,
> - secondly, because some of GCC folks are also PARISC m-l readers ;)

The above was not a kernel problem.  It was mainly a problem in creating
the correct eh frame data.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi,

>-- Original Message --
>From: "Vlad D. Markov" <markov@monmouth.com>
>To: jsoe0708@tiscali.be
>Subject: Re: [parisc-linux] kernel panic when extracting large tar files=

>Date: Mon, 6 Jan 2003 19:52:40 -0500
>
>
>Did not want to send the file to the whole group.
>
You would :-)
>
>On Monday 06 January 2003 04:02 am, you wrote:
>> >When I extract large tar files on my 735/99 (tar --numeric-owner -xzv=
pf
>>
>> ),
>>
>> >the kernel panics and I get a core dump.
>>
>> Interesting, can you explain me how do you grab this coredump?
>>
>> >My kernel is: Linux version 2.4.20-pa18 (root@grumpy) (gcc version 3.=
0.4)
>> >#22
>> >Fri Dec 27 21:25:37 EST 2002
>> >
>> >I saved a capture from minicom and have not upgraded the kernel since=
.
>>
>> Firstly the minicom capture, would already tell more :)
>>
>> Greetings,
>>     Joel
>>

Well I am not an expert but just notice what seems to me the most importa=
nt:
Trap 5 on CPU 0

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001111 Not tainted
r00-03  00000000 10102800 10155b54 1d7dcf20
r04-07  103f6dd4 1d7dc020 1d7dc000 000000f0
r08-11  00000001 00000400 274bb3c0 00000000
r12-15  2748c5d0 00000001 27603b80 101464a0
r16-19  10130820 1030b10c 00000000 00000001
r20-23  00000000 1d7dcf20 00000000 00000000
r24-27  0000005c 00000000 1d7dcf20 102f6010
r28-31  1d7dcec0 00000e40 2748cac0 10135e14
sr0-3   00000000 00000104 00000000 00000104
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101028a8 101028ac
 IIR: 6ab60038    ISR: 00000000  IOR: 1d7dcf3c
 CPU:        0   CR30: 2748c000 CR31: 103b0000
 ORIG_R28: 103ab810
Trap 5 on CPU 0

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 102f8cb0 10108064 1d7dcf20
r04-07  103f6dd4 1d7dc020 1d7dc000 000000f0
r08-11  00000001 00000400 274bb3c0 00000000
r12-15  2748c5d0 00000001 27603b80 101464a0
r16-19  2748cac0 1030b10c 00000000 90000000
r20-23  00000000 0000000e 10254110 48809600
r24-27  f0825100 00000016 103f52a0 102f6010
r28-31  00000000 000003de 2748cd00 10105134
sr0-3   00000000 00000104 00000000 00000104
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10108068 1010806c
 IIR: 22643206    ISR: 00000000  IOR: 10309800
 CPU:        0   CR30: 2748c000 CR31: 103b0000
 ORIG_R28: 00000000
...
Trap 5 on CPU 0

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 1030612c 10108064 1d7dcf20
r04-07  103f6dd4 1d7dc020 1d7dc000 000000f0
r08-11  00000001 00000400 274bb3c0 00000000
r12-15  2748c5d0 00000001 27603b80 101464a0
r16-19  274e9100 1030b10c 00000000 90000000
r20-23  00000000 00000001 b0324889 0000dbae
r24-27  00000001 00000064 10306420 102f6010
r28-31  00000000 00000232 274e9340 10125200
sr0-3   00000000 00000104 00000000 00000104
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10108068 1010806c
 IIR: 22643206    ISR: 00000000  IOR: 10309800
 CPU:        0   CR30: 2748c000 CR31: 103b0000
 ORIG_R28: 103bf23f
Trap 5 on CPU 0

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 1030612c 10108064 1d7dcf20
r04-07  103f6dd4 1d7dc020 1d7dc000 000000f0
r08-11  00000001 00000400 274bb3c0 00000000
r12-15  2748c5d0 00000001 27603b80 101464a0
r16-19  274e9340 1030b10c 00000000 90000000
r20-23  00000000 00000001 b507ebf3 0000dbff
r24-27  00000001 00000064 10306420 102f60=FF

which say that is a trap 5 (ie a LPMC). So, may me am i wrong, but it see=
ms
that there is a hardware problem on this machine?

AFAIK to analyse this kind of problem would be to re-install (may be a te=
mporary
external disk) hp-ux and mainly DIAGTOOLS.

On my own a run 2.4.20-pa18 (2.4.21-pre2-pa18) (compiled with same gcc)
without problem on a b180 and b2k (excepted with PDC on this last).

But again I am not expert so I made ml in CC.

Cheers,
    Joel


********************************************
Promo Tiscali ADSL: 35 Euros/mois, 1er mois et activation =3D 0 Euro http=
://adsl.tiscali.be





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On Tue, Jan 07, 2003 at 08:23:37AM +0100, jsoe0708@tiscali.be wrote:
...
> >Did not want to send the file to the whole group.
> >
> You would :-)

joel is right. See FAQ #17.
http://www.parisc-linux.org/faq/index.html

> Trap 5 on CPU 0
>  IIR: 6ab60038    ISR: 00000000  IOR: 1d7dcf3c
> Trap 5 on CPU 0
>  IIR: 22643206    ISR: 00000000  IOR: 10309800
> Trap 5 on CPU 0
>  IIR: 22643206    ISR: 00000000  IOR: 10309800
> Trap 5 on CPU 0
>
> which say that is a trap 5 (ie a LPMC). So, may me am i wrong, but it seems
> that there is a hardware problem on this machine?

yes. LPMC is usually a recoverable memory parity error.
ISR/IOR is the virtual address that was accessed.
Since this is kernel space (ISR==0), I think you can just
drop the leading 1 for the physical address.

Try pulling half the memory and see if the trap goes away.
Or replace all the memory if you have spares.

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:17275

Well,

after having talked a bit with the 'pioneers' here at ESIEE, it appears 
that this tar problem is a long lasting one.

Matthieu Delahaye told me that since the very first days of pa/linux; 
this bug has existed, mostly happening on 'un-taring' files, obliging 
users to untar by small chunks of data.

FWIW, I experienced that bug too on the A500, had no time to chase it 
down but I will look at it soon.
It's near the top of my TODO list :)

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Hi,

I have a problem with weak symbols on parisc. If I use the following
small program, the result should be always (nil), but it isn=B4t:

> cat weak.c
#include <stdio.h>
#include <ctype.h>
 =

asm (".weak linux_bla");
asm (".weak linux_foo");
 =

extern const char * linux_bla;
extern const int linux_foo[];
 =

int
main ()
{
  printf("linux_bla: %p\n", &linux_bla);
  printf("linux_foo: %p\n", &linux_foo);
  return 0;
}

> ./weak
linux_bla: 0x205f0
linux_foo: (nil)

The main difference in compiling seems to be the different relocation
type for both symbols:

> readelf -r weak.o
 =

Relocation section '.rela.text' at offset 0x410 contains 10 entries:
  Offset    Info  Type            Symbol's Value  Symbol's Name         =

Addend
  00000010  00502 R_PARISC_DIR21L       00000000 =

=2ELC0                      + 0
  00000014  00506 R_PARISC_DIR14R       00000000 =

=2ELC0                      + 0
  00000018  00912 R_PARISC_DPREL21L     00000000 =

linux_bla                 + 0
  0000001c  00916 R_PARISC_DPREL14R     00000000 =

linux_bla                 + 0
  00000020  00c0c R_PARISC_PCREL17F     00000000 =

printf                    + 0
  00000028  00602 R_PARISC_DIR21L       00000010 =

=2ELC1                      + 0
  0000002c  00606 R_PARISC_DIR14R       00000010 =

=2ELC1                      + 0
  00000030  00a02 R_PARISC_DIR21L       00000000 =

linux_foo                 + 0
  00000034  00a06 R_PARISC_DIR14R       00000000 =

linux_foo                 + 0
  00000038  00c0c R_PARISC_PCREL17F     00000000 =

printf                    + 0

I am currently using gcc version 3.2.1, binutils version 2.13.90.0.16
20021126, glibc version 2.3.1, but I had this problem already with gcc
3.0.4 and all compilers inbetween. Is there a possibility to work around
this?


Berthold


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Xref: news.gmane.org gmane.linux.ports.parisc:17277

Hello Grant,
>
>>>
>>>I've looked a bit at the same problem on A500 with
>>>a regular (single port) HP tulip card.
>>>
>>>> In the following dmesg out takes for 2.4.20-pa13 and 2.4.19-32 (debi=
an),
>>>> it seems that the older kernel is finding the transceiver and
>>>> successfully auto-negotiating the link while the newer is not.
>>>
>>>yeah - same symptom that I saw.
>>>
>>>> Any ideas how to solve this? Any help would be greatly appreciated.
>>>
>>>I suspect it's a tulip driver bug.
>>>I haven't had a chance to diff the 2.4.19 vs 2.4.20 tulip driver.
>>>One idea might be to "forward port" the 2.4.19 drivers/net/tulip code
>>>into 2.4.20.
>>>
>>Same on B2k with add card.
>>Hmm I notice strange detail:
>>2.4.19 : lan heart bit on (even if interface not configure)
>>2.4.20 (& 21-pre1) : no lan heart bit on (interface configured or not)
>>
>>I will try to revert tulip driver and advise you.
>>
>Well I find some minutes to do this reverse and it works.
>Still have to find the bug ?
>
Hmm I suspecting a test in eeprom.c:
line 193: if (ee_data[27] =3D=3D 0 || ee_data[ee_data[27]] =3D=3D0) {

which i temporarely change by if (ee_data[27] =3D=3D 0) { (as i 2.4.19)
and it works but I have not enough doc to fix this pb.

May be Ryan Bradetich could help us?

Joel


*************************************************************************=
*******
Controlez mieux votre consommation Internet...surfez Tiscali Complete...h=
ttp://tiscali.complete.be





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> Hi,
> 
> I have a problem with weak symbols on parisc. If I use the following
> small program, the result should be always (nil), but it isnt:

> asm (".weak linux_bla");
> asm (".weak linux_foo");

Don't use asm's to weaken symbols.  Use GCC's attribute weak.  GCC
needs to know whether a symbol is weak or not.

> extern const char * linux_bla;
> extern const int linux_foo[];

> > ./weak
> linux_bla: 0x205f0
> linux_foo: (nil)
> 
> The main difference in compiling seems to be the different relocation
> type for both symbols:

What is printed in the first case is the value of the $dp register.
For some reason, $global$ is not being subtracted from the symbol value
(zero).  This is a linker bug, not a gcc bug.

We probably should be using DPREL relocations for linux_foo.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > > ./weak
> > linux_bla: 0x205f0
> > linux_foo: (nil)

Try "-fPIC".

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi,

How far is the E35 support? I have two of these running HP-UX 9. 
Is there any (rough) timeline of when SCSI will be supported ? 
I also have HP-28640-80001 ethernet cards and 28655-60001 SCSI/Parallel
port cards. Will these ever be supported ?

Frank


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> Matthieu Delahaye told me that since the very first days of pa/linux; 
> this bug has existed, mostly happening on 'un-taring' files, obliging 
> users to untar by small chunks of data.

And hardware errors have existed since the beggining of time ;)
 
> FWIW, I experienced that bug too on the A500, had no time to chase it 
> down but I will look at it soon.

How big is the file? I routinely tar/untar _very_ large source archives
on my A500 and I see no problems. 

c.



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> I have a problem with weak symbols on parisc. If I use the following
> small program, the result should be always (nil), but it isnt:

I believe the enclosed binutils patch will fix the problem.  I will
install it after a little more testing.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2003-01-07  John David Anglin  <dave.anglin@nrc.gc.ca>

	* elf32-hppa.c (final_link_relocate): For all DP relative relocations,
	adjust addil instructions if the symbol has no section.

Index: elf32-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
retrieving revision 1.92
diff -u -3 -p -r1.92 elf32-hppa.c
--- elf32-hppa.c	12 Dec 2002 10:17:14 -0000	1.92
+++ elf32-hppa.c	7 Jan 2003 20:15:48 -0000
@@ -3416,15 +3416,14 @@ final_link_relocate (input_section, cont
     case R_PARISC_DPREL14R:
     case R_PARISC_DPREL14F:
     /* For all the DP relative relocations, we need to examine the symbol's
-       section.  If it's a code section, then "data pointer relative" makes
-       no sense.  In that case we don't adjust the "value", and for 21 bit
-       addil instructions, we change the source addend register from %dp to
-       %r0.  This situation commonly arises when a variable's "constness"
+       section.  If it has no section or if it's a code section, then
+       "data pointer relative" makes no sense.  In that case we don't
+       adjust the "value", and for 21 bit addil instructions, we change the
+       source addend register from %dp to %r0.  This situation commonly
+       arises for undefined weak symbols and when a variable's "constness"
        is declared differently from the way the variable is defined.  For
        instance: "extern int foo" with foo defined as "const int foo".  */
-      if (sym_sec == NULL)
-	break;
-      if ((sym_sec->flags & SEC_CODE) != 0)
+      if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
 	{
 	  if ((insn & ((0x3f << 26) | (0x1f << 21)))
 	      == (((int) OP_ADDIL << 26) | (27 << 21)))


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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] E35 support
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Hello,

I think you have to wait - as I have to do!

Our Exx machines have absolutly low priority !
All older machines (eg 700er series) or all top new machies
are supported under Linux. For both, there is enough documentation
available.

On the Exx machines (and other series) HP used own-made hardware
(including own-made chips) and there is no available docu.

I wait for an NDA to get HP-UX code, I am waiting, waiting .....
The first driver sceleton has no success. No access to the chip
was possible.

I hope, there is a new day when we are continue hacking on those
drivers !!

What I can say:
At the moment is my spare time very small !

BUT, I want to have my E55 full running - I like this machine and
I want to help here in the development.

When I have more time again, I will do another offensive for getting
code and have assitence in that job ...

Christoph



Frank Gevaerts wrote:
> Hi,
> 
> How far is the E35 support? I have two of these running HP-UX 9. 
> Is there any (rough) timeline of when SCSI will be supported ? 
> I also have HP-28640-80001 ethernet cards and 28655-60001 SCSI/Parallel
> port cards. Will these ever be supported ?
> 
> Frank
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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On Tuesday 07 January 2003 23:31, Christoph Plattner wrote:
> BUT, I want to have my E55 full running - I like this machine and
> I want to help here in the development.

Hey, I really like this kind of enthusiasm :-)
I had the same strange motivation when I started my 
PARISC-hacking 3 1/2 years back.

Much luck,
Helge



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John David Anglin wrote:
> =

> > I have a problem with weak symbols on parisc. If I use the following
> > small program, the result should be always (nil), but it isn=B4t:
> =

> I believe the enclosed binutils patch will fix the problem.  I will
> install it after a little more testing.

Thanks, I will try this. If someone knows who is maintaining the XFree86
package of debian, this is the reason why imake does not detect the glibc=

correctly. I tried to debug it myself, but at this point I was stuck. =


This was a fast bugfix:) Thank you

Berthold


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On Tue, Jan 07, 2003 at 11:49:49PM +0100, b.gunreben wrote:
> If someone knows who is maintaining the XFree86 package of debian,

I recently asked the same question:
	apt-cache show xfree86-common
...
Maintainer: Branden Robinson <branden@debian.org>
...

grant



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On Tue, 7 Jan 2003 21:02:48 +0100
"Frank Gevaerts" <frank@gevaerts.be> wrote:

> Hi,
> 
> How far is the E35 support? I have two of these running HP-UX 9. 
Exactly the one reported at http://pateam.esiee.fr/list.html
We have this box running here at ESIEE...
> Is there any (rough) timeline of when SCSI will be supported ?
Not that I know of. Currently not on pa-ckers top priority list. 
> I also have HP-28640-80001 ethernet cards and 28655-60001 SCSI/Parallel
> port cards. Will these ever be supported ?
No idea. Maybe Ryan Bradetich will? :)

Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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On Tue, 7 Jan 2003 15:13:19 -0500
"Carlos O'Donell" <carlos@baldric.uwo.ca> wrote:

> > Matthieu Delahaye told me that since the very first days of pa/linux; 
> > this bug has existed, mostly happening on 'un-taring' files, obliging 
> > users to untar by small chunks of data.
> 
> And hardware errors have existed since the beggining of time ;)
Hardware errors happening on several boxes and only when unpacking an archive?
Kinda "feature" heh ? :)
>  
> > FWIW, I experienced that bug too on the A500, had no time to chase it 
> > down but I will look at it soon.
> 
> How big is the file? I routinely tar/untar _very_ large source archives
> on my A500 and I see no problems. 
About 700M gzipped.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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> > > FWIW, I experienced that bug too on the A500, had no time to chase it 
> > > down but I will look at it soon.
> > 
> > How big is the file? I routinely tar/untar _very_ large source archives
> > on my A500 and I see no problems. 

> About 700M gzipped.

I just unpacked 1234744157 Jan  7 19:33 src.tar.gz into a 4GB source
archive on an ext2 fs. The box didn't even blink. Running 2.4.19-pa22 
parisc64 non-SMP.

As it turns out Vlad's archive is on 14MB's but contains lots of very
small files. I'm trying to get a hold of this to test it out.

c.



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> 
> As it turns out Vlad's archive is on 14MB's but contains lots of very
> small files. I'm trying to get a hold of this to test it out.
> 

I just downloaded the archive that Vlad had problems with and it doesn't
crash my machine. We'll need some more detailed info about the hardware,
scsi setup, and the procedure.

c.


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Subject: [parisc-linux] Re: do_page_fault() infinite loop running 2.4.20-pa18 #9 SMP
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My B132 seems to be having similar problems running a non SMP kernel,
don't know if this is useful information. 

saturn:/usr/local/src# dmesg | more
Linux version 2.4.20-pa18 (bame@dsl2) (gcc version 3.0.3) #1 Tue Jan 7
06:44:31
MST 2003
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
[*SNIP*]
Adding Swap: 249232k swap-space (priority -1)
eth0: link ok.

do_page_fault() pid=266 command='sendmail' type=6 address=0x00000003

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 400c78f0 40315e07 00000000
r04-07  40326bec 40316230 00000010 00000001
r08-11  00000000 402d3c98 0008df50 0008df54
r12-15  00000076 00000073 00000006 00000000
r16-19  000b3348 ffffffff 000bc248 40326bec
r20-23  00000000 faf02a58 00000000 00000001
r24-27  00000000 40316230 000f6dd0 000b3348
r28-31  00000016 400e19dc faf029c0 40315e07
sr0-3   00000000 0000016e 00000000 0000016e
sr4-7   0000016e 0000016e 0000016e 0000016e

IASQ: 0000016e 0000016e IAOQ: 00000003 00000007
 IIR: 081c0243    ISR: 0000016e  IOR: 000f703c
 CPU:        0   CR30: 16668000 CR31: 103b8000
 ORIG_R28: 00000000



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Hello,

I just got a C240 and i'm new to the PA-RISC architecture. It runs debian fine except the Visualize FX2 graphics board only works under sticon. What's the status of an XFree or FB driver for this card? Is any1 working on that?

-Yves



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On mercredi, jan 8, 2003, at 13:20 Europe/Paris, Yves De Muyter wrote:

> Hello,
>
> I just got a C240 and i'm new to the PA-RISC architecture. It runs 
> debian fine except the Visualize FX2 graphics board only works under 
> sticon. What's the status of an XFree or FB driver for this card? Is 
> any1 working on that?
Well, there is at the moment no support for FX cards.
Only Vis-EG are supported.

FX aren't likely to be supported soon, due to various legal problems 
(patents and co).

If you want to keep that FX card,  you'll have to use it with STICON...

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Subject: Re: [parisc-linux] Re: do_page_fault() infinite loop running 2.4.20-pa18 #9 SMP
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> saturn:/usr/local/src# dmesg | more
> Linux version 2.4.20-pa18 (bame@dsl2) (gcc version 3.0.3) #1 Tue Jan 7
> 06:44:31
> MST 2003
> FP[0] enabled: Rev 1 Model 15
> The 32-bit Kernel has started...
> Determining PDC firmware type: System Map.
> [*SNIP*]
> Adding Swap: 249232k swap-space (priority -1)
> eth0: link ok.
> 
> do_page_fault() pid=266 command='sendmail' type=6 address=0x00000003
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111 Not tainted
> r00-03  00000000 400c78f0 40315e07 00000000
> r04-07  40326bec 40316230 00000010 00000001
> r08-11  00000000 402d3c98 0008df50 0008df54
> r12-15  00000076 00000073 00000006 00000000
> r16-19  000b3348 ffffffff 000bc248 40326bec
> r20-23  00000000 faf02a58 00000000 00000001
> r24-27  00000000 40316230 000f6dd0 000b3348
> r28-31  00000016 400e19dc faf029c0 40315e07
> sr0-3   00000000 0000016e 00000000 0000016e
> sr4-7   0000016e 0000016e 0000016e 0000016e
> 
> IASQ: 0000016e 0000016e IAOQ: 00000003 00000007

The code has branched to address 0.  If there is a core dump,
you might get some idea what happened by disassembling the
code just before and after $rp (0x40315e04).  Branches to address
0 can occur if the code tries to call an undefined weak function
or if there is a problem with function pointers.  I suspect an
indirect call since $r22 is 0 (this register contains the address
of the callee in an indireect call).

Page faults often occur when there is a problem in user code.
In the SMP case, certain page faults cause an infinite loop
in do_page_fault().  Do you see the above repeated indefinitely?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: p2@mind.be (Peter 'p2' De Schrijver)
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Subject: Re: [parisc-linux] Matrox Millenium II in C240
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--3V7upXqbjpZ4EhLz
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Hi,

> 
> Hmmm. /proc/iomem should tell us which ranges dino/cujo are forwarding.
> 

/proc/iomem in attachement.

> But looking at dino.c, it's clear the code is not handling multiple
> ranges correctly even if firmware did program it right.
> 
>         res = &dino_dev->hba.lmmio_space;
> 
> lmmio_space needs to be an array.
> In HP speak, this is an "unsupported configuration". 
> 
> Elroy (lba_pci.c) suffers a similar problem with "directed ranges"
> (code currently only handles "distributed ranges"). At some point
> I'll get back to working on the lba code since it has a few other
> minor oustanding issues as well.
> 

So, this basically means it won't work for now ?

Cheers,

Peter.

--3V7upXqbjpZ4EhLz
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=iomem-parisc

00000000-1fffffff : System RAM
  00000000-000009ff : PDC data (Page Zero)
  00100000-002bffff : Kernel code
  002c0000-003b5c1b : Kernel data
f0190001-f0190001 : led_data
f1000000-f1ffffff : GSC Bus [10/]
  f1000000-f1000fff : Cujo
  f1800000-f1ffffff : Cujo LMMIO
f2000000-f5ffffff : GSC Bus [8/]
  f2000000-f2000fff : Dino
  f2003000-f2003fff : Serial RS232
  f2800000-f2ffffff : Dino LMMIO
  f3ffb000-f3ffb3ff : tulip
f6000000-f7ffffff : GSC Bus [10/]
f8000000-fff7ffff : GSC Bus [8/]
  ffd00000-ffdfffff : Lasi
    ffd00000-ffd00fff : Lasi
    ffd02000-ffd02fff : Parallel
    ffd04000-ffd04fff : Lasi Harmony
    ffd05000-ffd05fff : Serial RS232
    ffd06000-ffd06fff : Lasi SCSI
    ffd08000-ffd0800f : keyboard
    ffd08100-ffd0810f : psaux
fff80000-fffaffff : Central Bus
  fff88000-fff88fff : U2/Uturn
  fff8a000-fff8afff : U2/Uturn
  fffa0000-fffa0fff : CPU
fffb0000-fffdffff : Local Broadcast
fffe0000-ffffffff : Global Broadcast

--3V7upXqbjpZ4EhLz--


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Hi all,
>
>Does somebody have already tested a pa kernel 2.4.20 configured as 'adva=
nce
>router'.
>Does it have some chance that it works?
>
>Thanks in advance,
>    Joel
>
>PS: This is to configure a b180 as a small gateway-proxy :) and this is
>requested in GIpTable?
>
Just test and seems to works fine :-))

Joel


********************************************
Promo Tiscali ADSL: 35 Euros/mois, 1er mois et activation =3D 0 Euro http=
://adsl.tiscali.be





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Subject: [parisc-linux] Printing problem with HP9000 712/80 and two more questions
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Hello,

I have an old HP9000 712/80 box which I would like to use as an
internal file/print server. The printing doesn't work. I tried
the original kernel which came with Debian, I also tried to cross
compile (on a much faster P3 600MHz) numerous kernels, and I also
tried 2.4.20-pa18 from ftp://ftp.parisc-linux.org. I tried to
permute every option regarding the printer in the kernel config
file, and in all cases, including the default Debian kernel and
the 2.4.20-pa18, I consistently cannot get the printer work.

The printer is a HP LaserJet 1100 connected to the parallel port. The
printer works fine on an Intel box, so it is hopefully not a printer
problem. Whenever I try to print from the HPPA box (even something
like "cat /etc/passwd > /dev/lp0"), absolutely nothing happens.

Here are some relevant files:
cat /proc/iomem
00000000-03ffffff : System RAM
  00000000-000009ff : PDC data (Page Zero)
  00100000-002fbfff : Kernel code
  002fc000-003fbcd3 : Kernel data
f0100000-f01fffff : Lasi
  f0100000-f0100fff : Lasi
  f0102000-f0102fff : Parallel
  f0104000-f0104fff : Lasi Harmony
  f0105000-f0105fff : Serial RS232
  f0106000-f0106fff : Lasi SCSI
  f0107000-f0107fff : Apricot
  f0108000-f010800f : keyboard
  f0108100-f01090ff : Lasi psaux
f0500000-f05fffff : Lasi
  f0500000-f0500fff : Lasi
  f0505000-f0505fff : Serial RS232
f8000000-f8000fff : sti (native)
f8100000-f84fffff : stifb mmio
f9000000-f9ffffff : stifb
fff80000-fffaffff : Central Bus
fffb0000-fffdffff : Local Broadcast
  fffbe000-fffbefff : CPU
fffe0000-ffffffff : Global Broadcast

/proc/interrupts
          CPU00
 32:   37262217      PARISC-CPU  timer
 33:     176500      PARISC-CPU  lasi
 34:          0      PARISC-CPU  lasi
 69:       1022            Lasi  keyboard
 82:          9            Lasi  harmony
 86:     126441            Lasi  lasi710
 87:      49028            Lasi  i82596
 88:          0            Lasi  parport0

Here is the dmesg of the box. I won't break the lines so it is
easier to read.

Linux version 2.4.20-pa18 (bame@dsl2) (gcc version 3.0.3) #1 Fri Dec 27 06:12:20 MST 2002
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00006010 00000481 00000000 00000000 77da0338 00000000 00000004 00000072 00000072
vers  00000009
model 9000/712
Total Memory: 64 Mb
pagetable_init
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda2 HOME=/ console=tty0 sti=1 sti_font=VGA8x16 TERM=linux palo_kernel=2/boot/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 79.66 BogoMIPS
Memory: 61624k available
Dentry cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Searching for devices...
Found devices:
1. Gecko 80 GSC Core Graphics (10) at 0xf8000000 [1], versions 0x1c, 0x0, 0x85
2. Gecko 80 Core BA (11) at 0xf0100000 [2], versions 0x1c, 0x0, 0x81
3. Gecko 80 Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x1c, 0x0, 0x82
4. Gecko 80 Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x1c, 0x0, 0x8a
5. Gecko 80 Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x1c, 0x0, 0x8c
6. Gecko 80 Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x1c, 0x0, 0x74
7. Gecko 80 Audio (10) at 0xf0104000 [2/0/8], versions 0x1c, 0x0, 0x7b
8. Gecko 80 Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x1c, 0x0, 0x83
9. Gecko 80 Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x1c, 0x0, 0x84
10. Gecko 80 Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x1c, 0x0, 0x84
11. Gecko 80 Core BA (11) at 0xf0500000 [6], versions 0x1c, 0x0, 0x81
12. Gecko Optional RS-232 (10) at 0xf0505000 [6/0/4], versions 0x18, 0x0, 0x8c
13. Gecko 80 (712/80) (0) at 0xfffbe000 [8], versions 0x601, 0x0, 0x4
14. Memory (1) at 0xfffbf000 [9], versions 0x38, 0x0, 0x9
CPU(s): 1 x PA7100LC (PCX-L) at 80.000000 MHz
Lasi version 0 at 0xf0100000 found.
Lasi version 0 at 0xf0500000 found.
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Gecko-style soft power switch enabled.
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
STI GSC/PCI graphics driver version 0.9
STI word mode ROM at f0080000, hpa at f8000000
STI id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1280
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 2b4ded6d, mmio: 0xf8100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0505800 (irq = 122) is a 16550A
PS/2 keyboard port at 0xf0108000 (irq 69) found, device attached.
PS/2 psaux port at 0xf0108100 (irq 69) found, no device attached.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 83 F6 4A IRQ 87.
82596.c $Revision: 1.30 $
SCSI subsystem driver Revision: 1.00
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2 
scsi0 : LASI SCSI 53c700
scsi0: (6:0) Synchronous at offset 8, period 100ns
  Vendor: MICROP    Model: 2112              Rev: 4024
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)
Partition check:
 sda: sda1 sda2 sda3
Lasi Harmony Audio driver V0.9a, h/w id 20, rev. 18 at 0xf0104000, IRQ 82
mice: PS/2 mouse device common for all mice
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :    60.800 MB/sec
   8regs_prefetch:    60.800 MB/sec
   32regs    :    70.800 MB/sec
   32regs_prefetch:    70.800 MB/sec
raid5: using function: 32regs_prefetch (70.800 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 266k freed
Adding Swap: 130836k swap-space (priority -1)
EXT3 FS 2.4-0.9.19, 19 August 2002 on sd(8,2), internal journal
eth0: link ok.


Now one thing I found is that the interrupt count for the
printer port doesn't increase even if I send a file to /dev/lp0
or print through the printer daemon. I tried to run
"tunelp /dev/lp0 -i 0", but it complained about invalied argument
to ioctl (maybe wasn't updated since 2.2?) and it says "using IRQ 88".

Anyone has any idea how to solve this problem?

And two more questions. Is the sound card full duplex? My standard
method of determinig, "cat /dev/audio > /dev/audio" told me that
"Device or resource busy" therefore it seems it is not. Is it true?

The other question. I am using emacs, and I regularly see these messages:

Jan  8 23:52:33 hp kernel: emacs(17795): unaligned access to 0x001cdaf2 at ip=0x0008937f
Jan  8 23:52:33 hp kernel: emacs(17795): unaligned access to 0x001cdaf2 at ip=0x0008930b

What are they?

TIA, Vilmos


From - Thu Nov 08 21:26:12 2018
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From: Randolph Chung <randolph@tausq.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:17298

> The other question. I am using emacs, and I regularly see these messages:
> 
> Jan  8 23:52:33 hp kernel: emacs(17795): unaligned access to 0x001cdaf2 at ip=0x0008937f
> Jan  8 23:52:33 hp kernel: emacs(17795): unaligned access to 0x001cdaf2 at ip=0x0008930b
> 
> What are they?

Blame LaMont!
(yes, I'm just kidding, I've just been waiting for my chance to say
this... :-)

On a more serious note, on parisc load/stores to half-words, words,
doublewords have specific address alignment requirements. the message
usually means the program in question is buggy and is making unaligned
accesses. The unaligned access is trapped and emulated by the kernel, 
so normally the message itself is simply informational.

This is definitely a FAQ.... maybe we should add it to the list :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: jsoe0708@tiscali.be
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Subject: [parisc-linux] glibc or kernel problem?
Date: Thu, 9 Jan 2003 12:24:39 +0100
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Cc: "Carlos O'Donell" <carlos@baldric.uwo.ca>,
	"John David Anglin" <dave@hiauly1.hia.nrc.ca>,
	"Randolph Chung" <randolph@tausq.org>
To: parisc-linux@parisc-linux.org
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Hello Carlos, Dave, Randolph, ...

>-- Original Message --
>From: jsoe0708@tiscali.be
>To: parisc-linux@parisc-linux.org
>Subject: [parisc-linux] squid-2.xx dpkg failled to fork on pl (follow up=
)
>Date: Thu, 2 Jan 2003 18:04:01 +0100
>
>
>Hi all,
>
>This small mail to mentionned that I reach to make squid operational on
>a linux-2.4.20-pa17 thanks to the following tips:
>
>in debian rules replace statement
>    ac_cv_func_setresuid=3Dno \
>by
>    ac_cv_func_setresuid=3Dyes \
>
>so that function leave_suid() [into src/tools.c] will use setresuid() in=

>place of seteuid() before launch fork().
>
>Is it a know problem on palinux?
>
I come back to you with this problem because it just supply a solution fo=
r
this problem and do not explain me the reason.

I do not reach to know if it is a problem with seteuid() (IIRC in glibc)
or a kernel problem.

I already try to get a coredump, but it seems that in this case (fork SEG=
V)
linux (SQUID FAQ) is not able to produce any coredump [what I unfortunalt=
ely
verify during numeruous test].

Is somebody have any better idea to help me to have a better idea of the
actula problem?

Thanks in advance,
    Joel


********************************************
Promo Tiscali ADSL: 35 Euros/mois, 1er mois et activation =3D 0 Euro http=
://adsl.tiscali.be





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Subject: [parisc-linux] ibm-disk on a hp 735/125
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Hello all,
im running a hp 735/125 with a st31200wd 1GB harddisk, connected to the
fast-wide scsi-connector, which run's quit nice.
But now I want to replace the disk with a larger 4,3GB ibm dcas-34330
disk, but I can't get it be detected by the system, I think i used the
same jumper settings as on the old seagate drive.
at the search for potential boot devices nothing appears.

So perhaps someones uses the same harddisk and can tell me the right
jumper-settings, the disk itself works fine with a normal PC with a
scsi-wide controller.

Thanks for your help

	J. Krebs
-- 

                         ''~``
                        ( o o )
+------------------.oooO--(_)--Oooo.------------------+
|                                                     |
|                    .oooO                            |
|                    (   )   Oooo.                    |
+---------------------\ (----(   )--------------------+
Joerg Krebs            \_)    ) /
Oettingenstr. 67             (_/
80538 Muenchen
Raum: Z1.16

Tel.: +49-89-2180-9251
Fax.: +49-89-2180-9202

Homepage:
http://www.bmo.physik.uni-muenchen.de/~krebs

------------------------------------------------JK




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Hello all,
im running a hp 735/125 with a st31200wd 1GB harddisk, connected to the
fast-wide scsi-connector, which run's quit nice.
But now I want to replace the disk with a larger 4,3GB ibm dcas-34330
disk, but I can't get it be detected by the system, I think i used the
same jumper settings as on the old seagate drive.
at the search for potential boot devices nothing appears.

So perhaps someones uses the same harddisk and can tell me the right
jumper-settings, the disk itself works fine with a normal PC with a
scsi-wide controller.

Thanks for your help

J. Krebs



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Xref: news.gmane.org gmane.linux.ports.parisc:17302

Hi people,

	I have a problem to compile an 64 kernel in an 64 machine. The
problem is: hppa64-linux-gcc compiler not found. Someone know what happened?
Where I find this gcc version?

	Thanks in advance,

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com
*   +55-51-3316-2852 Telnet  725-2852
FAX +55-51-3316-2754 Mobile +55-51-9965-8020





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Hi people,

	The message "Trace/breakpoint trap" occurs to me when I execute my
application. This message occurs only when exists a break command or exists
another situation to occur this message?

Thanks in advance

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com




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Subject: Re: [parisc-linux] unaligned accesses
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>-- Original Message --
>From: Randolph Chung <randolph@tausq.org>
>To: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] unaligned accesses
>Reply-To: Randolph Chung <randolph@tausq.org>
>Date: Thu, 9 Jan 2003 00:29:02 -0800
>
>
>> The other question. I am using emacs, and I regularly see these messag=
es:
>> 
>> Jan  8 23:52:33 hp kernel: emacs(17795): unaligned access to 0x001cdaf=
2
>at ip=3D0x0008937f
>> Jan  8 23:52:33 hp kernel: emacs(17795): unaligned access to 0x001cdaf=
2
>at ip=3D0x0008930b
>> 
>> What are they?
>
>Blame LaMont!
>(yes, I'm just kidding, I've just been waiting for my chance to say
>this... :-)
>
Do you think that this tcpdump pb is also related to Lamont job (to be ho=
nest
I do not remember what was it?):
...
Jan  9 09:59:58 fw01 kernel: tcpdump(4638): unaligned access to 0x0011e78=
a
at ip=3D0x0002ab83
Jan  9 09:59:34 fw01 kernel: tcpdump(4638): unaligned access to 0x0011e78=
e
at ip=3D0x0002ab83
...

>On a more serious note, on parisc load/stores to half-words, words,
>doublewords have specific address alignment requirements. the message
>usually means the program in question is buggy and is making unaligned

hmmm buggy: not always, the triky case is when you have to access to thos=
e
kind of data encapsulated into a structure. I do not yet find any workaro=
und
or how to fix this kind of pb. Any idea (gcc-3.3?)?

>accesses. The unaligned access is trapped and emulated by the kernel, 
>so normally the message itself is simply informational.
>
>This is definitely a FAQ.... maybe we should add it to the list :)
>
Yes, works fine but this consume a lot of CPU resources.

Joel


********************************************
Promo Tiscali ADSL: 35 Euros/mois, 1er mois et activation =3D 0 Euro http=
://adsl.tiscali.be





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Xref: news.gmane.org gmane.linux.ports.parisc:17305

> >Blame LaMont!
> >(yes, I'm just kidding, I've just been waiting for my chance to say
> >this... :-)
> >
> Do you think that this tcpdump pb is also related to Lamont job (to be honest
> I do not remember what was it?):

LaMont recently improved the unaligned handler to be more correct and
more robust... as well as handle more cases.
> ...
> Jan  9 09:59:58 fw01 kernel: tcpdump(4638): unaligned access to 0x0011e78a
> at ip=0x0002ab83
> Jan  9 09:59:34 fw01 kernel: tcpdump(4638): unaligned access to 0x0011e78e
> at ip=0x0002ab83
> ...

yes, tcpdump (and several other network tools) are known to generate a
lot of unaligned accesses.

> hmmm buggy: not always, the triky case is when you have to access to those
> kind of data encapsulated into a structure. I do not yet find any workaround
> or how to fix this kind of pb. Any idea (gcc-3.3?)?

eh? what do you mean? 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Vilmos Soti <vilmos@vilmos.org>
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Subject: Re: [parisc-linux] Printing problem with HP9000 712/80
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Hello,

Thanks all of you for the answers. Now at least I know that the unaligned
access message is normal and the harmony is full duplex.

About the printer.

This is a full-blown (not windows only) printer. I tried to connect
it to another Linux box, and I could print a pcl file by catting it to
/dev/lp0. I could also print a text file (/etc/passwd and an ^L at the
end) by sending it to /dev/lp0.

However, when I connect it to the HP9000 712/80 box, then nothing happens
even if I tried to cat the same pcl file to the printer port. I massaged
the connectors to make sure that there is no contact error. This is not
the case since the printer works perfectly on the two other boxes. On
the other hand, I do have an old Panasonic dot matrix printer, and if I
connect that printer to the box, and send a text file with an ^L at the
end, it does print. So now I am in the situation that the HP computer
doesn't talk to the HP printer but to the Panasonic one.

The printer has only one connector which seems proprietary, but the
other end of the end of the cable is parallel.

Thanks, Vilmos


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In reference to a message from John David Anglin, dated Dec 11:
> > The code _seems_ to trap on a PA8600. Though I won't say anything until
> > I enable debugging in the trap handler and rerun the test.
> 
> The code doesn't seem to trap on a A500 which I believe is a PA8500.
> I think we need to look at bits 0..1 of the coprocessor configuration
> register to determine instruction validity.  See table 8-6 on page 8-11.
> I can look at what the HP compiler does.  Up to now, we have assumed
> that all PA8000 machines have the same instruction set.

i looked at this some more.. it's not that the fcnv instruction is not
implemented by the processor, but we seem to be falling into one of the
overflow/underflow cases... if you adjust the value being converted (say
remove one of the zeros), the program works without trapping.

page 10-9 of the pa20 arch manual gives the conditions under which a
floating point conversion op will cause an unimplemented exception.
however my reading of the text is that an exception is only generated if
the overflow/underflow exceptions are enabled. i've tried explicitly 
calling feclearexcept(FE_ALL_EXCEPT) before doing the fp op but it still 
causes the unimplemented exception trap.
The kernel debugs seem to indicate the O/U exceptions are not set as 
well....

puzzled,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Thu, Jan 09, 2003 at 05:44:31PM +0100, ext Joerg Krebs wrote:

> im running a hp 735/125 with a st31200wd 1GB harddisk, connected to the
> fast-wide scsi-connector, which run's quit nice.
> But now I want to replace the disk with a larger 4,3GB ibm dcas-34330
> disk, but I can't get it be detected by the system, I think i used the
> same jumper settings as on the old seagate drive.
> at the search for potential boot devices nothing appears.

I'd say that probably the IBM disk isn't high-voltage. The 735's 
fast-wide is fast-wide-highvoltage-differential, back then they thought 
that no one in their right minds would try to do FWSE and no one had 
thought about LVD yet, or something...

And IIRC the -wd in the Seagate model code means about that too. I don't 
know about IBM specifically.

> So perhaps someones uses the same harddisk and can tell me the right
> jumper-settings, the disk itself works fine with a normal PC with a
> scsi-wide controller.

Well, if it works in a normal PC, that usually means that it isn't HVD. I 
only know of two HVD adapters for PCs, Adaptec AHA-1744 and 2944, and 
those were always expensive ...

I suppose you could get the disk to work on a single-ended interface or 
get an appropriate EISA card.

Besides, do you mean that the 735 FWD interface works in Linux/parisc 
nowadays? Great... 


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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>-- Original Message --
>Date: Thu, 9 Jan 2003 23:36:59 -0800
>From: Randolph Chung <randolph@tausq.org>
>To: jsoe0708@tiscali.be
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] unaligned accesses
>Reply-To: Randolph Chung <randolph@tausq.org>
>
>
...
>> hmmm buggy: not always, the triky case is when you have to access to
those
>> kind of data encapsulated into a structure. I do not yet find any work=
around
>> or how to fix this kind of pb. Any idea (gcc-3.3?)?
>
>eh? what do you mean? 
>
well I will try to find back the example I encounter (somewhere in jfs-1.=
0.23
IIRC)

Cheers,
    Joel

********************************************
Promo Tiscali ADSL: 35 Euros/mois, 1er mois et activation =3D 0 Euro http=
://adsl.tiscali.be





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On Thu, Jan 09, 2003 at 12:52:18PM -0500, FARINATI,LEANDRO (HP-Brazil,ex1) wrote:
> 	I have a problem to compile an 64 kernel in an 64 machine. The
> problem is: hppa64-linux-gcc compiler not found. Someone know what happened?
> Where I find this gcc version?

Add http://ftp.parisc-linux.org/unofficial-debs/ to your
/etc/apt/sources.list and apt-get install gcc-hppa64.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Am Fre, 2003-01-10 um 13.42 schrieb Nahkola Mikko:
> On Thu, Jan 09, 2003 at 05:44:31PM +0100, ext Joerg Krebs wrote:
> 
> > im running a hp 735/125 with a st31200wd 1GB harddisk, connected to the
> > fast-wide scsi-connector, which run's quit nice.
> > But now I want to replace the disk with a larger 4,3GB ibm dcas-34330
> > disk, but I can't get it be detected by the system, I think i used the
> > same jumper settings as on the old seagate drive.
> > at the search for potential boot devices nothing appears.
> 
> I'd say that probably the IBM disk isn't high-voltage. The 735's 
> fast-wide is fast-wide-highvoltage-differential, back then they thought 
> that no one in their right minds would try to do FWSE and no one had 
> thought about LVD yet, or something...
> 

Yes you are right, I found the HP 735 Hardware manual on the openpa
Webside and there i found that the wide-scsi connector is just for HVD

Do you know if any HVD disk is detected by the hp or are there just some
special disks for the hp ?

> And IIRC the -wd in the Seagate model code means about that too. I don't 
> know about IBM specifically.
> 
> > So perhaps someones uses the same harddisk and can tell me the right
> > jumper-settings, the disk itself works fine with a normal PC with a
> > scsi-wide controller.
> 
> Well, if it works in a normal PC, that usually means that it isn't HVD. I 
> only know of two HVD adapters for PCs, Adaptec AHA-1744 and 2944, and 
> those were always expensive ...
> 
> I suppose you could get the disk to work on a single-ended interface or 
> get an appropriate EISA card.
> 
> Besides, do you mean that the 735 FWD interface works in Linux/parisc 
> nowadays? Great... 
> 

No linux/parisc isn`t working with FWD , I suppose, I run my HP still
under HP-UX, i have another hp 735/99 on which I want to install linux
on it, but there i have se disks in it, for now I'm running linux/parisc
only on a 715/75 with an older version of linux/parisc (the one without
hil mouse support)

Thanks for your help

	J.Krebs

> 
> -- 
> Mikko Nahkola   <mikko.nahkola@nokia.com>
> Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
-- 

                         ''~``
                        ( o o )
+------------------.oooO--(_)--Oooo.------------------+
|                                                     |
|                    .oooO                            |
|                    (   )   Oooo.                    |
+---------------------\ (----(   )--------------------+
Joerg Krebs            \_)    ) /
Oettingenstr. 67             (_/
80538 Muenchen
Raum: Z1.16

Tel.: +49-89-2180-9251
Fax.: +49-89-2180-9202

Homepage:
http://www.bmo.physik.uni-muenchen.de/~krebs

------------------------------------------------JK


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> >
> well I will try to find back the example I encounter (somewhere in jfs-1.0.23
> IIRC)
> 
> Cheers,
>     Joel

I remind a word access on a table of char at an odd index. Thought it
was reiserFS code.

Matthieu



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Xref: news.gmane.org gmane.linux.ports.parisc:17313

Hi people,
	
	I'm trying compile the kernel linux-2.4.20-pa13 in a 64 bit machine
(pa risc 5430) with compiler gcc version 3.0.4 and occurs the following
problem:

hppa64-linux-gcc -D__KERNEL__ -I/usr/src/linux-2.4.20-pa13/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
-fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce
 -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections
-march=2.0 -mschedule=8000   -nostdinc -I
/usr/lib/gcc-lib/hppa-linux/3.0.4/include -DKBUILD_BASENAME=sys_parisc32  -c
-o sys_pa
risc32.o sys_parisc32.c
sys_parisc32.c:351: parse error before "__kernel_time_t32"
sys_parisc32.c:351: warning: no semicolon at end of struct or union
sys_parisc32.c:352: warning: type defaults to `int' in declaration of
`modtime'
sys_parisc32.c:352: warning: data definition has no type or storage class
sys_parisc32.c: In function `sys32_utime':
sys_parisc32.c:357: storage size of `times32' isn't known
sys_parisc32.c:357: warning: unused variable `times32'
sys_parisc32.c: At top level:
sys_parisc32.c:386: parse error before "__kernel_clock_t32"
sys_parisc32.c:386: warning: no semicolon at end of struct or union
sys_parisc32.c:387: warning: type defaults to `int' in declaration of
`tms_stime'
sys_parisc32.c:387: warning: data definition has no type or storage class
sys_parisc32.c:388: parse error before "tms_cutime"
sys_parisc32.c:388: warning: type defaults to `int' in declaration of
`tms_cutime'
sys_parisc32.c:388: warning: data definition has no type or storage class
sys_parisc32.c:389: parse error before "tms_cstime"
sys_parisc32.c:389: warning: type defaults to `int' in declaration of
`tms_cstime'
sys_parisc32.c:389: warning: data definition has no type or storage class
sys_parisc32.c: In function `sys32_times':
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:401: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:402: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:403: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c:404: dereferencing pointer to incomplete type
sys_parisc32.c: At top level:
sys_parisc32.c:414: parse error before "__kernel_off_t32"
sys_parisc32.c:414: warning: no semicolon at end of struct or union
sys_parisc32.c:415: warning: type defaults to `int' in declaration of
`l_len'
sys_parisc32.c:415: warning: data definition has no type or storage class
sys_parisc32.c:416: parse error before "l_pid"
sys_parisc32.c:416: warning: type defaults to `int' in declaration of
`l_pid'
sys_parisc32.c:416: warning: data definition has no type or storage class
sys_parisc32.c: In function `get_flock':
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: dereferencing pointer to incomplete type
sys_parisc32.c:424: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: dereferencing pointer to incomplete type
sys_parisc32.c:425: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: dereferencing pointer to incomplete type
sys_parisc32.c:426: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: dereferencing pointer to incomplete type
sys_parisc32.c:427: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: dereferencing pointer to incomplete type
sys_parisc32.c:428: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c: In function `put_flock':
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:436: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:437: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:438: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:439: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c:440: dereferencing pointer to incomplete type
sys_parisc32.c: In function `sys32_sysctl':
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:511: warning: cast to pointer from integer of different size
sys_parisc32.c:520: warning: cast to pointer from integer of different size
sys_parisc32.c:520: warning: cast to pointer from integer of different size
sys_parisc32.c:521: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c:529: warning: cast to pointer from integer of different size
sys_parisc32.c: At top level:
sys_parisc32.c:596: parse error before "time_t32"
sys_parisc32.c:596: warning: type defaults to `int' in declaration of
`time_t32'
sys_parisc32.c:596: warning: data definition has no type or storage class
sys_parisc32.c:621: parse error before '*' token
sys_parisc32.c:622: warning: function declaration isn't a prototype
sys_parisc32.c: In function `sys32_time':
sys_parisc32.c:624: parse error before "now32"
sys_parisc32.c:626: `tloc' undeclared (first use in this function)
sys_parisc32.c:626: (Each undeclared identifier is reported only once
sys_parisc32.c:626: for each function it appears in.)
sys_parisc32.c:627: `now32' undeclared (first use in this function)
sys_parisc32.c:623: warning: unused variable `now'
sys_parisc32.c:631: warning: control reaches end of non-void function
sys_parisc32.c: At top level:
sys_parisc32.c:786: parse error before "pid"
sys_parisc32.c:788: warning: function declaration isn't a prototype
sys_parisc32.c: In function `sys32_wait4':
sys_parisc32.c:789: `ru' undeclared (first use in this function)
sys_parisc32.c:790: `pid' undeclared (first use in this function)
sys_parisc32.c:790: `stat_addr' undeclared (first use in this function)
sys_parisc32.c:790: `options' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:805: parse error before "__kernel_dev_t32"
sys_parisc32.c:805: warning: no semicolon at end of struct or union
sys_parisc32.c:806: warning: type defaults to `int' in declaration of
`st_ino'
sys_parisc32.c:806: warning: data definition has no type or storage class
sys_parisc32.c:807: parse error before "st_mode"
sys_parisc32.c:807: warning: type defaults to `int' in declaration of
`st_mode'
sys_parisc32.c:807: warning: data definition has no type or storage class
sys_parisc32.c:808: parse error before "st_nlink"
sys_parisc32.c:808: warning: type defaults to `int' in declaration of
`st_nlink'
sys_parisc32.c:808: warning: data definition has no type or storage class
sys_parisc32.c:811: parse error before "st_rdev"
sys_parisc32.c:811: warning: type defaults to `int' in declaration of
`st_rdev'
sys_parisc32.c:811: warning: data definition has no type or storage class
sys_parisc32.c:812: parse error before "st_size"
sys_parisc32.c:812: warning: type defaults to `int' in declaration of
`st_size'
sys_parisc32.c:812: warning: data definition has no type or storage class
sys_parisc32.c:813: parse error before "st_atime"
sys_parisc32.c:813: warning: type defaults to `int' in declaration of
`st_atime'
sys_parisc32.c:813: warning: data definition has no type or storage class
sys_parisc32.c:815: parse error before "st_mtime"
sys_parisc32.c:815: warning: type defaults to `int' in declaration of
`st_mtime'
sys_parisc32.c:815: warning: data definition has no type or storage class
sys_parisc32.c:817: parse error before "st_ctime"
sys_parisc32.c:817: warning: type defaults to `int' in declaration of
`st_ctime'
sys_parisc32.c:817: warning: data definition has no type or storage class
sys_parisc32.c:822: parse error before "__unused2"
sys_parisc32.c:822: warning: type defaults to `int' in declaration of
`__unused2'
sys_parisc32.c:822: warning: data definition has no type or storage class
sys_parisc32.c:823: parse error before "__unused3"
sys_parisc32.c:823: warning: type defaults to `int' in declaration of
`__unused3'
sys_parisc32.c:823: warning: data definition has no type or storage class
sys_parisc32.c:827: parse error before "st_realdev"
sys_parisc32.c:827: warning: type defaults to `int' in declaration of
`st_realdev'
sys_parisc32.c:827: warning: data definition has no type or storage class
sys_parisc32.c:830: parse error before "st_uid"
sys_parisc32.c:830: warning: type defaults to `int' in declaration of
`st_uid'
sys_parisc32.c:830: warning: data definition has no type or storage class
sys_parisc32.c:831: parse error before "st_gid"
sys_parisc32.c:831: warning: type defaults to `int' in declaration of
`st_gid'
sys_parisc32.c:831: warning: data definition has no type or storage class
sys_parisc32.c:833: parse error before '}' token
sys_parisc32.c: In function `cp_new_stat32':
sys_parisc32.c:850: storage size of `tmp' isn't known
sys_parisc32.c:850: warning: unused variable `tmp'
sys_parisc32.c:851: warning: `blocks' might be used uninitialized in this
function
sys_parisc32.c: At top level:
sys_parisc32.c:957: parse error before "__kernel_off_t32"
sys_parisc32.c:957: warning: no semicolon at end of struct or union
sys_parisc32.c:960: parse error before '}' token
sys_parisc32.c: In function `filldir32':
sys_parisc32.c:989: dereferencing pointer to incomplete type
sys_parisc32.c:989: dereferencing pointer to incomplete type
sys_parisc32.c:989: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:996: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:999: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1000: dereferencing pointer to incomplete type
sys_parisc32.c:1001: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c:1002: dereferencing pointer to incomplete type
sys_parisc32.c: In function `sys32_getdents':
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c:1033: dereferencing pointer to incomplete type
sys_parisc32.c: At top level:
sys_parisc32.c:1312: parse error before "__kernel_size_t32"
sys_parisc32.c:1313: warning: function declaration isn't a prototype
sys_parisc32.c: In function `qm_modules':
sys_parisc32.c:1321: `bufsize' undeclared (first use in this function)
sys_parisc32.c:1323: `buf' undeclared (first use in this function)
sys_parisc32.c:1330: `ret' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:1347: parse error before "__kernel_size_t32"
sys_parisc32.c:1348: warning: function declaration isn't a prototype
sys_parisc32.c: In function `qm_deps':
sys_parisc32.c:1351: `mod' undeclared (first use in this function)
sys_parisc32.c:1354: `ret' undeclared (first use in this function)
sys_parisc32.c:1361: `bufsize' undeclared (first use in this function)
sys_parisc32.c:1363: `buf' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:1384: parse error before "__kernel_size_t32"
sys_parisc32.c:1385: warning: function declaration isn't a prototype
sys_parisc32.c: In function `qm_refs':
sys_parisc32.c:1389: `mod' undeclared (first use in this function)
sys_parisc32.c:1392: `ret' undeclared (first use in this function)
sys_parisc32.c:1402: `bufsize' undeclared (first use in this function)
sys_parisc32.c:1404: `buf' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:1428: parse error before "__kernel_size_t32"
sys_parisc32.c:1429: warning: function declaration isn't a prototype
sys_parisc32.c: In function `qm_symbols':
sys_parisc32.c:1435: `mod' undeclared (first use in this function)
sys_parisc32.c:1436: `ret' undeclared (first use in this function)
sys_parisc32.c:1446: `bufsize' undeclared (first use in this function)
sys_parisc32.c:1453: `buf' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:1487: parse error before "__kernel_size_t32"
sys_parisc32.c:1488: warning: function declaration isn't a prototype
sys_parisc32.c: In function `qm_info':
sys_parisc32.c:1491: `mod' undeclared (first use in this function)
sys_parisc32.c:1494: `bufsize' undeclared (first use in this function)
sys_parisc32.c:1504: `buf' undeclared (first use in this function)
sys_parisc32.c:1509: `ret' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:1515: parse error before "__kernel_size_t32"
sys_parisc32.c:1516: warning: function declaration isn't a prototype
sys_parisc32.c: In function `sys32_query_module':
sys_parisc32.c:1521: `name_user' undeclared (first use in this function)
sys_parisc32.c:1545: `which' undeclared (first use in this function)
sys_parisc32.c:1551: `buf' undeclared (first use in this function)
sys_parisc32.c:1551: `bufsize' undeclared (first use in this function)
sys_parisc32.c:1551: `ret' undeclared (first use in this function)
sys_parisc32.c: At top level:
sys_parisc32.c:1791: parse error before "__kernel_size_t32"
sys_parisc32.c:1791: warning: no semicolon at end of struct or union
sys_parisc32.c:1793: parse error before "msg_controllen"
sys_parisc32.c:1793: warning: type defaults to `int' in declaration of
`msg_controllen'
sys_parisc32.c:1793: warning: data definition has no type or storage class
sys_parisc32.c:1795: parse error before '}' token
sys_parisc32.c:1798: parse error before "__kernel_size_t32"
sys_parisc32.c:1798: warning: no semicolon at end of struct or union
sys_parisc32.c:1801: parse error before '}' token
sys_parisc32.c: In function `__cmsg32_nxthdr':
sys_parisc32.c:1825: arithmetic on pointer to an incomplete type
sys_parisc32.c: In function `msghdr_from_user32_to_kern':
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: dereferencing pointer to incomplete type
sys_parisc32.c:1869: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: dereferencing pointer to incomplete type
sys_parisc32.c:1870: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: dereferencing pointer to incomplete type
sys_parisc32.c:1871: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: dereferencing pointer to incomplete type
sys_parisc32.c:1879: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: dereferencing pointer to incomplete type
sys_parisc32.c:1880: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: dereferencing pointer to incomplete type
sys_parisc32.c:1881: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: dereferencing pointer to incomplete type
sys_parisc32.c:1882: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c: In function `cmsghdr_from_user32_to_kern':
sys_parisc32.c:1932: `__kernel_size_t32' undeclared (first use in this
function)
sys_parisc32.c:1932: parse error before "ucmlen"
sys_parisc32.c:1937: sizeof applied to an incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: `ucmlen' undeclared (first use in this function)
sys_parisc32.c:1939: dereferencing pointer to incomplete type
sys_parisc32.c:1939: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1944: sizeof applied to an incomplete type
sys_parisc32.c:1950: dereferencing pointer to incomplete type
sys_parisc32.c:1970: sizeof applied to an incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: dereferencing pointer to incomplete type
sys_parisc32.c:1972: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1973: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: dereferencing pointer to incomplete type
sys_parisc32.c:1976: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: dereferencing pointer to incomplete type
sys_parisc32.c:1977: warning: type defaults to `int' in declaration of `type
name'
sys_parisc32.c:1981: sizeof applied to an incomplete type
sys_parisc32.c:1982: dereferencing pointer to incomplete type
sys_parisc32.c: In function `put_cmsg32':
sys_parisc32.c:2005: storage size of `cmhdr' isn't known
sys_parisc32.c:2006: sizeof applied to an incomplete type
sys_parisc32.c:2008: dereferencing pointer to incomplete type
sys_parisc32.c:2023: sizeof applied to an incomplete type
sys_parisc32.c:2023: sizeof applied to an incomplete type
sys_parisc32.c:2025: sizeof applied to an incomplete type
sys_parisc32.c:2005: warning: unused variable `cmhdr'
sys_parisc32.c: In function `scm_detach_fds32':
sys_parisc32.c:2033: sizeof applied to an incomplete type
sys_parisc32.c:2042: sizeof applied to an incomplete type
sys_parisc32.c:2059: sizeof applied to an incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2061: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2063: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2065: dereferencing pointer to incomplete type
sys_parisc32.c:2067: sizeof applied to an incomplete type
sys_parisc32.c: In function `cmsg32_recvmsg_fixup':
sys_parisc32.c:2136: dereferencing pointer to incomplete type
sys_parisc32.c:2137: dereferencing pointer to incomplete type
sys_parisc32.c:2138: dereferencing pointer to incomplete type
sys_parisc32.c:2140: dereferencing pointer to incomplete type
sys_parisc32.c:2141: sizeof applied to an incomplete type
sys_parisc32.c:2144: sizeof applied to an incomplete type
sys_parisc32.c:2145: dereferencing pointer to incomplete type
sys_parisc32.c:2130: warning: `clen64' might be used uninitialized in this
function
sys_parisc32.c: In function `sys32_recvmsg':
sys_parisc32.c:2234: dereferencing pointer to incomplete type
sys_parisc32.c:2284: `__kernel_size_t32' undeclared (first use in this
function)
sys_parisc32.c:2284: parse error before "uclen"
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: `uclen' undeclared (first use in this function)
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2285: dereferencing pointer to incomplete type
sys_parisc32.c:2283: warning: unused variable `ucmsg_ptr'
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2288: dereferencing pointer to incomplete type
sys_parisc32.c:2224: warning: `uaddr_len' might be used uninitialized in
this function
sys_parisc32.c: In function `get_fd_set32':
sys_parisc32.c:2526: warning: left shift count >= width of type
sys_parisc32.c: In function `set_fd_set32':
sys_parisc32.c:2555: warning: right shift count >= width of type
sys_parisc32.c: At top level:
sys_parisc32.c:2782: parse error before "__kernel_ino_t32"
sys_parisc32.c:2782: warning: no semicolon at end of struct or union
sys_parisc32.c:2786: parse error before '}' token
sys_parisc32.c:2792: parse error before "__kernel_ino_t32"
sys_parisc32.c:2792: warning: no semicolon at end of struct or union
sys_parisc32.c:2794: parse error before '}' token
sys_parisc32.c:2798: parse error before "__kernel_caddr_t32"
sys_parisc32.c:2798: warning: no semicolon at end of struct or union
sys_parisc32.c:2801: parse error before "ug_udimap"
sys_parisc32.c:2801: warning: type defaults to `int' in declaration of
`ug_udimap'
sys_parisc32.c:2801: warning: data definition has no type or storage class
sys_parisc32.c:2804: parse error before "ug_gdimap"
sys_parisc32.c:2804: warning: type defaults to `int' in declaration of
`ug_gdimap'
sys_parisc32.c:2804: warning: data definition has no type or storage class
sys_parisc32.c:2813: field `u_export' has incomplete type
sys_parisc32.c:2814: field `u_umap' has incomplete type
sys_parisc32.c:2815: field `u_getfh' has incomplete type
sys_parisc32.c:2917: parse error before "__kernel_time_t32"
sys_parisc32.c:2917: warning: no semicolon at end of struct or union
sys_parisc32.c:2918: warning: type defaults to `int' in declaration of
`dqb_itime'
sys_parisc32.c:2918: warning: data definition has no type or storage class
sys_parisc32.c: In function `sys32_quotactl':
sys_parisc32.c:2937: sizeof applied to an incomplete type
sys_parisc32.c:2939: dereferencing pointer to incomplete type
sys_parisc32.c:2940: dereferencing pointer to incomplete type
sys_parisc32.c:2953: dereferencing pointer to incomplete type
sys_parisc32.c:2954: dereferencing pointer to incomplete type
sys_parisc32.c:2956: sizeof applied to an incomplete type
sys_parisc32.c:3008:1: warning: "CP" redefined
sys_parisc32.c:3001:1: warning: this is the location of the previous
definition
make[1]: *** [sys_parisc32.o] Error 1
make[1]: Leaving directory `/usr/src/linux-2.4.20-pa13/arch/parisc/kernel'
make: *** [_dir_arch/parisc/kernel] Error 2

	Anyone know something about this?

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com
*   +55-51-3316-2852 Telnet  725-2852
FAX +55-51-3316-2754 Mobile +55-51-9965-8020





From - Thu Nov 08 21:26:13 2018
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From: Nahkola Mikko <mnahkola@trinms01.ntc.nokia.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ibm-disk on a hp 735/125
Date: Fri, 10 Jan 2003 16:58:00 +0200
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On Fri, Jan 10, 2003 at 01:58:51PM +0100, ext Joerg Krebs wrote:
> Am Fre, 2003-01-10 um 13.42 schrieb Nahkola Mikko:

> > > im running a hp 735/125 with a st31200wd 1GB harddisk, connected to the
> > > fast-wide scsi-connector, which run's quit nice.
> > > But now I want to replace the disk with a larger 4,3GB ibm dcas-34330

> > I'd say that probably the IBM disk isn't high-voltage. The 735's 
> > fast-wide is fast-wide-highvoltage-differential, back then they thought 

> Yes you are right, I found the HP 735 Hardware manual on the openpa
> Webside and there i found that the wide-scsi connector is just for HVD
> Do you know if any HVD disk is detected by the hp or are there just some
> special disks for the hp ?

Well, yes on both counts. Any HVD disks should be detected... but at the 
time these boxes were made, there were supposed to be certain differences 
between HP and regular disks. Or maybe that was just HP marketing.

At any rate, there _was_ (and still is, BTW) a way to recognize a HP disk 
by the firmware - and there were differences between "workstation" and 
"server" disks too, _and_ IIRC "workstation" disks weren't "expected to 
work" in servers, the other way round it was "expected to work" but "unsupported" 
or something. Don't remember.

If I only could remember what the exact identification thing was ... 
maybe a letter somewhere in the firmware version string.

But since HP-UX 10.20 by the latest, probably earlier too, some people 
have been using whatever disks they get as long as the SCSI interfaces 
are compatible. I've never heard of problems. 

Me? I recycle old HP disks in PCs... 


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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Subject: Re: [parisc-linux] unaligned accesses
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>-- Original Message --
>From: jsoe0708@tiscali.be
>Subject: Re: [parisc-linux] unaligned accesses
>To: "Randolph Chung" <randolph@tausq.org>
>Cc: parisc-linux@lists.parisc-linux.org
>Date: Fri, 10 Jan 2003 09:24:40 +0100
>
>
>
>>-- Original Message --
>>Date: Thu, 9 Jan 2003 23:36:59 -0800
>>From: Randolph Chung <randolph@tausq.org>
>>To: jsoe0708@tiscali.be
>>Cc: parisc-linux@lists.parisc-linux.org
>>Subject: Re: [parisc-linux] unaligned accesses
>>Reply-To: Randolph Chung <randolph@tausq.org>
>>
>>
>...
>>> hmmm buggy: not always, the triky case is when you have to access to
>those
>>> kind of data encapsulated into a structure. I do not yet find any wor=
karound
>>> or how to fix this kind of pb. Any idea (gcc-3.3?)?
>>
>>eh? what do you mean?
>>
>well I will try to find back the example I encounter (somewhere in jfs-1=
.0.23
>IIRC)
>
Yes here it was in evms(1.1.0 since the bug was fix but it is still a sam=
ple
:-)

[this small example was composed of code coming from evms-1.1.0]
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

typedef u_int8_t  BOOLEAN;

#ifndef TRUE
  #define TRUE  1
#endif
#ifndef FALSE
  #define FALSE 0
#endif

struct partition {
    unsigned char boot_ind;     /* 0x80 - active */
    unsigned char head;     /* starting head */
    unsigned char sector;       /* starting sector */
    unsigned char cyl;      /* starting cylinder */
    unsigned char sys_ind;      /* What partition type */
    unsigned char end_head;     /* end head */
    unsigned char end_sector;   /* end sector */
    unsigned char end_cyl;      /* end cylinder */
    unsigned int start_sect;    /* starting sector counting from 0 */
    unsigned int nr_sects;      /* nr of sectors in partition */
};

BOOLEAN isa_null_partition_record(struct partition *p)
{
    int          i;
    u_int32_t   *uip =3D (u_int32_t *) p;

    for (i=3D0; i<4; i++) {
        if (*uip!=3D0x00) return FALSE;
    }

    return TRUE;
}

int main(int argc, char * * argv, char * * env) {

    struct partition p1, p2;

    p1.boot_ind=3D0;
    p1.head=3D0;
    p1.sector=3D0;
    p1.cyl=3D0;
    p1.sys_ind=3D0;
    p1.end_head=3D0;
    p1.end_sector=3D0;
    p1.end_cyl=3D0;
    p1.start_sect=3D0;
    p1.nr_sects=3D0;
 
    printf("Is that p1 is a null partition: %u\n", isa_null_partition_rec=
ord(&p1));

    p2.boot_ind=3D1;
    p2.head=3D2;
    p2.sector=3D3;
    p2.cyl=3D4;
    p2.sys_ind=3D5;
    p2.end_head=3D6;
    p2.end_sector=3D7;
    p2.end_cyl=3D8;
    p2.start_sect=3D9;
    p2.nr_sects=3D10;
 
    printf("Is that p2 is a null partition: %u\n", isa_null_partition_rec=
ord(&p2));
    return 0;
}

Unfortunately this doesn't reproduce the actual problem of which I save
the following traces (from the evms_vgscan 1.1.0: once again this was fix=

since next release):
...
(isa_valid_partition_record) file checks.c
part.start_sect add: 0x27116
part.start_sect    : 0
part.nr_sects   add: 0x2711a
part.nr_sects      : 0
p            add: 0x2710e
p.boot_ind   add: 0x2710e
p.head       add: 0x2710f
p.sector     add: 0x27110
p.cyl        add: 0x27111
p.sys_ind    add: 0x27112
p.end_head   add: 0x27113
p.end_sector add: 0x27114
p.end_cyl    add: 0x27115
p.start_sect add: 0x27116
p.start_sect    : 0
p.nr_sects   add: 0x2711a
p.nr_sects      : 0
p            add: 0x2710e
p.boot_ind   add: 0x2710e
p.head       add: 0x2710f
p.sector     add: 0x27110
p.cyl        add: 0x27111
p.sys_ind    add: 0x27112
p.end_head   add: 0x27113
p.end_sector add: 0x27114
p.end_cyl    add: 0x27115
p.start_sect add: 0x27116
p.start_sect    : 0
p.nr_sects   add: 0x2711a
p.nr_sects      : 0
...

in which we can see that p.start_sect (an int) address (0x27166 =3D=3D 16=
0102)
is not well align (160102/4=3D40025.5).

HTH,
    Joel


********************************************
Promo Tiscali ADSL: 35 Euros/mois, 1er mois et activation =3D 0 Euro http=
://adsl.tiscali.be





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On vendredi, jan 10, 2003, at 14:12 Europe/Paris, FARINATI,LEANDRO 
(HP-Brazil,ex1) wrote:

> Hi people,
> 	
> 	I'm trying compile the kernel linux-2.4.20-pa13 in a 64 bit machine
where did you get that kernel source from ?


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/




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On Fri, Jan 10, 2003 at 04:58:00PM +0200, Nahkola Mikko wrote:
> Well, yes on both counts. Any HVD disks should be detected... but at the 
> time these boxes were made, there were supposed to be certain differences 
> between HP and regular disks. Or maybe that was just HP marketing.
> 
> At any rate, there _was_ (and still is, BTW) a way to recognize a HP disk 
> by the firmware - and there were differences between "workstation" and 
> "server" disks too, _and_ IIRC "workstation" disks weren't "expected to 
> work" in servers, the other way round it was "expected to work" but "unsupported" 
> or something. Don't remember.

That's right.  HP (in common with other big-iron hardware vendors) has
custom disk firmware which has certain guarantees which are useful for
real world issues but slow down benchmarks.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On vendredi, jan 10, 2003, at 16:28 Europe/Paris, FARINATI,LEANDRO 
(HP-Brazil,ex1) wrote:

> I get in http://ftp.parisc-linux.org/cvs/
I can't find pa13 there.
Anyway, please try with the latest version: 2.4.20-pa18. This bug (if 
it's one) may already have been corrected.

FWIW, do not answer me personally, please always CC the m-l.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/




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> >> hmmm buggy: not always, the triky case is when you have to access to
> those
> >> kind of data encapsulated into a structure. I do not yet find any workaround
> >> or how to fix this kind of pb. Any idea (gcc-3.3?)?
> >
> >eh? what do you mean? 
> >
> well I will try to find back the example I encounter (somewhere in jfs-1.0.23
> IIRC)

I think what Randolph is saying is that structures don't provide a machine
independent way of transfering data from one machine to another.  If you
want to do that, you need a machine independent specification for the data.
Having worked on code to decode realtime telemetry data from various
spacecraft, I know that you need to be very aware of type sizes, alignment
and endianness issues on each architecture.  The same kind of issues come
up in handling graphics data.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> But now I want to replace the disk with a larger 4,3GB ibm dcas-34330
> disk, but I can't get it be detected by the system, I think i used the
> same jumper settings as on the old seagate drive.
> at the search for potential boot devices nothing appears.

If the ibm drive is not high-voltage differential, you can probably get
a wide to narrow adapter and put it at the end of the narrow SE bus.
Plugging a non-differential drive into a differential bus is not supposed
to damage anything but it does completely disable the bus drivers of
all devices on the bus ;-)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Do you know if any HVD disk is detected by the hp or are there just some
> special disks for the hp ?

Don't think so.  I've used several OEM seagate models on the HVD bus.
I've done some hacking of drive tables and sam info.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Unfortunately this doesn't reproduce the actual problem of which I save
> the following traces (from the evms_vgscan 1.1.0: once again this was fix
> since next release):

i'm not sure i correctly parsed what you wrote... the structure you
posted is fine, but that doesn't mean it cannot cause unaligned accesses
if used incorrectly.

for a simple example:
struct foo {
    int bar;
};

this structure if placed on the stack by gcc is always int-aligned. but
you can easily generate unaligned accesses from it:

void botch(void)
{
    char buf[1024];
    struct foo x;
    struct foo *a, *b;

    a = &x;
    b = (struct foo *)buf[2];

    printf("%d\n", a->bar); /* aligned */
    printf("%d\n", b->bar); /* unaligned! */
}

in this case, the structure gives you no guarantees that things will be
aligned properly.

it's also possible to have much more involved scenarios, (e.g. with
unions of things with different alignments), where things can get messed
up.... you need to carefully look at how the code works to debug these
things. while gcc may not be bug-free in this area, it's much more
likely to be an application bug than a gcc one.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi all,

I do notice that unstable debian for i386 switch (or will very soon) gcc-=
default
to gcc-3.2. Is it also true for hppa? (am I anxious about compiling new
kernel with this because of pb encounter with network connection)

Thanks in advance for advise,
    Joel
 

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> At any rate, there _was_ (and still is, BTW) a way to recognize a HP disk 
> by the firmware - and there were differences between "workstation" and 
> "server" disks too, _and_ IIRC "workstation" disks weren't "expected to 
> work" in servers, the other way round it was "expected to work" but "unsupported" 
> or something. Don't remember.

diskinfo prints vendor name and product id.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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>-- Original Message --
>Date: Thu, 9 Jan 2003 23:36:59 -0800
>From: Randolph Chung <randolph@tausq.org>
>To: jsoe0708@tiscali.be
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] unaligned accesses
>Reply-To: Randolph Chung <randolph@tausq.org>
>
>
...
>
>> hmmm buggy: not always, the triky case is when you have to access to
those
>> kind of data encapsulated into a structure. I do not yet find any work=
around
>> or how to fix this kind of pb. Any idea (gcc-3.3?)?
>
>eh? what do you mean? 

Sorry, I met well a problem of unaligne access problem with fsck.jfs (wit=
h
kernel 2.4.19-pa24+jfs 1.0.23 support):
...
fsck.jfs(6995): unaligned access to 0xfaf00757 at ip=3D0x0002ee1b
fsck.jfs(6995): unaligned access to 0xfaf00757 at ip=3D0x0002ee37
fsck.jfs(6995): unaligned access to 0xfaf00757 at ip=3D0x0002ed3f
...

which occurs in fsckmsgs.c for ip=3D0x0002ee1b (for exapmple) at:

        strncpy(prlimit, msgprms[prmidx], prmval[prmidx]);
with 
...
extern char *msgprms[];
...
   int prmidx;
...    
   int16_t *prmval;

So it is not related with the struct problem I encounter.

I will try to find back this example.

Joel

PS:  with ext3 (which I use) problem I hesitate to install 2.4.20 and wai=
ting
for 2.4.21 and evms, jfs, xfs support for this system)

********************************************
Promo Tiscali ADSL: 35 Euros/mois, 1er mois et activation =3D 0 Euro http=
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> I do notice that unstable debian for i386 switch (or will very soon) gcc-default
> to gcc-3.2. Is it also true for hppa? (am I anxious about compiling new
> kernel with this because of pb encounter with network connection)

yes:

tausq@auric:~$ madison gcc|grep unstable
       gcc |    2:3.1-1 |      unstable | hurd-i386
       gcc |  3:3.2.2-0 |      unstable | alpha, arm, hppa, i386, ia64, m68k, mips, mipsel, powerpc, s390, sparc

randolph


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On Fri, Jan 10, 2003 at 11:51:41AM +0100, jsoe0708@tiscali.be wrote:
> PS:  with ext3 (which I use) problem I hesitate to install 2.4.20 and waiting
> for 2.4.21 and evms, jfs, xfs support for this system)

um, you use the data=ordered mount option (or whatever it was)?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: RE: [parisc-linux] Re: floating point exception error
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Randolph wrote:

> i looked at this some more.. it's not that the fcnv instruction is not
> implemented by the processor, but we seem to be falling into 
> one of the overflow/underflow cases... if you adjust the value being 
> converted (say remove one of the zeros), the program works without
trapping.
> 
> page 10-9 of the pa20 arch manual gives the conditions under which a
> floating point conversion op will cause an unimplemented exception.
> however my reading of the text is that an exception is only generated
if
> the overflow/underflow exceptions are enabled. i've tried explicitly 
> calling feclearexcept(FE_ALL_EXCEPT) before doing the fp op but it
still 
> causes the unimplemented exception trap.
> The kernel debugs seem to indicate the O/U exceptions are not set as 
> well....

Actually, the important architectural statement is this one, on p. 10-8:

  If an implementation chooses not to execute an instruction, the
  instruction signals an unimplemented exception.  An unimplemented
  exception always causes a delayed trap on a later floating-point
  instruction.  It does not change the Status Register Flag bits and
  cannot be disabled.

What p. 10-9 is describing are the conditions under which the processor
is *required* to "go unimplemented" (i.e., to take an unimplemented
exception).  But what p. 10-8 says is that the processor is *allowed* to
"go unimplemented" on any FP instruction at any time for any reason.

A totally unrealistic, but still allowed, implementation would be for
all multiply-add instructions to "go unimplemented" on Tuesdays, and all
multiply-subtract instructions to do so on Thursdays.  A more realistic
example would be for a processor to "go unimplemented" for certain hard
corner-case combinations of operands and/or rounding modes.

In the particular case of the fcnv-unsigned-to-float instruction being
discussed in this thread, all PA-8xxx processors "go unimplemented" if
the MSB is 1 in the source operand.  This explains why the trap
disappears when you "remove one of the zeros" from the operand.

What it does not explain is why the original message reported a
difference between a PA-8600 and a PA-8700.  According to every internal
HP processor document and PA-RISC FP designer I've been able to track
down, this area of the design hasn't been changed since the original
PA-8000, so there shouldn't be any differences in behavior.

Can someone repeat the experiment on PA-8600 and a PA-8700 machine that
are configured identically (kernel, glibc, test program, etc.)?

 -- Jim
    HP PA-RISC/IPF Processor Architect



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>> I do notice that unstable debian for i386 switch (or will very soon)
gcc-default
>> to gcc-3.2. Is it also true for hppa? (am I anxious about compiling ne=
w
>> kernel with this because of pb encounter with network connection)
>
>yes:
>
>tausq@auric:~$ madison gcc|grep unstable
>       gcc |    2:3.1-1 |      unstable | hurd-i386
>       gcc |  3:3.2.2-0 |      unstable | alpha, arm, hppa, i386, ia64,
m68k,
>mips, mipsel, powerpc, s390, sparc
>
Thanks I will so wait before updating all my 2 test server (a b180 & a b2=
k)

Joel


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> What it does not explain is why the original message reported a
> difference between a PA-8600 and a PA-8700.  According to every internal
> HP processor document and PA-RISC FP designer I've been able to track
> down, this area of the design hasn't been changed since the original
> PA-8000, so there shouldn't be any differences in behavior.

actually it happens there too. i can reproduce the trap on pa8500,
pa8600 and pa8700 A500s.

so i guess this again points to a fp emulation bug in the kernel....
this is a bit surprising because aiui the code was lifted from hpux...

will look at this some more this weekend.
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>-- Original Message --
>Date: Fri, 10 Jan 2003 17:08:13 +0000
>From: Matthew Wilcox <willy@debian.org>
>To: jsoe0708@tiscali.be
>Cc: Randolph Chung <randolph@tausq.org>,
>	parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] unaligned accesses
>
>
>On Fri, Jan 10, 2003 at 11:51:41AM +0100, jsoe0708@tiscali.be wrote:
>> PS:  with ext3 (which I use) problem I hesitate to install 2.4.20 and
waiting
>> for 2.4.21 and evms, jfs, xfs support for this system)
>
>um, you use the data=3Dordered mount option (or whatever it was)?
>
Good question? I will investigate and let you inform.

Joel


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> What it does not explain is why the original message reported a
> difference between a PA-8600 and a PA-8700.  According to every internal
> HP processor document and PA-RISC FP designer I've been able to track
> down, this area of the design hasn't been changed since the original
> PA-8000, so there shouldn't be any differences in behavior.

I looked at the assembly code.  The original test was done under hpux.
I see that the call to ull2dbl has been optimized out of the loop.  It
is just called once.  So, the code probably is trapping there as well.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: Re: [parisc-linux] ibm-disk on a hp 735/125
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On Fri, Jan 10, 2003 at 04:58:00PM +0200, Nahkola Mikko wrote:
> time these boxes were made, there were supposed to be certain differences 
> between HP and regular disks. Or maybe that was just HP marketing.

testing. HP tests all it's HPUX products so they are usable in
"High Availability" configurations and work with all HPUX SCSI HBAs.

> At any rate, there _was_ (and still is, BTW) a way to recognize a HP disk 
> by the firmware - and there were differences between "workstation" and 
> "server" disks too, _and_ IIRC "workstation" disks weren't "expected to 
> work" in servers, the other way round it was "expected to work" but "unsupported" 
> or something. Don't remember.

workstation and server disks were for a long time seperate products
and tested seperately.  The reason was cost and time to market.
If you test something rigorously expect the testing  to (a) take longer
and (b) expose problems.

While they might still be seperate products, I think they all go through
the same testing these days - maybe with different hosts/configs.

Testing SCSI disks and SCSI RAID arrays in a multi-initiator
configuration exposes problems workstation/PC users rarely, if ever, see.

> But since HP-UX 10.20 by the latest, probably earlier too, some people 
> have been using whatever disks they get as long as the SCSI interfaces 
> are compatible. I've never heard of problems. 

Well, "works for me" is good enough for most linux users.
It's not when one is involved with any kind of support contract.

hth,
grant


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From: Geert Uytterhoeven <geert@linux-m68k.org>
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Subject: [parisc-linux] Generic RTC driver in 2.4.x
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Xref: news.gmane.org gmane.linux.ports.parisc:17334

Unfortunately I didn't receive any feedback from the pa-risc and ppc people
after my previous posting last Sunday.

Alan, I'm explicitly sending it to you for inclusion in your ac tree.
I intend to send it to Marcelo after the weekend.

Changes since last Sunday:
  - fix spelling of `automatically' (from Geoffrey Lee <glee@gnupilgrims.org>)
  - misc_register() and create_proc_read_entry() can fail
    (from mikal@stillhq.com in 2.5.x)
  - create_proc_read_entry() depends on CONFIG_PROC_FS
    (from mikal@stillhq.com in 2.5.x)


The following patch adds the generic RTC driver to 2.4.20 (applies fine to
2.4.21-pre3). This driver provides a /dev/rtc-compatible interface to the real
time clock on machines without a PC-style RTC chip. It is used as the primary
RTC driver on m68k, pa-risc, and ppc. This driver is already present in 2.5.x.

Pa-risc and ppc people (any other users?), please send me your enhancements (or
just ack if none are necessary), so I can send genrtc to Marcelo.

Thanks!

 Documentation/Configure.help  |   28 ++
 arch/m68k/config.in           |    5 
 arch/m68k/kernel/m68k_ksyms.c |    5 
 arch/m68k/kernel/setup.c      |    3 
 arch/m68k/q40/config.c        |   41 +++
 drivers/char/Makefile         |    1 
 drivers/char/genrtc.c         |  533 ++++++++++++++++++++++++++++++++++++++++++
 include/asm-m68k/machdep.h    |    4 
 include/asm-m68k/rtc.h        |   44 +++
 include/linux/rtc.h           |   28 ++
 10 files changed, 687 insertions(+), 5 deletions(-)

--- linux-2.4.20/Documentation/Configure.help	Tue Oct 29 18:40:45 2002
+++ linux-genrtc-2.4.20/Documentation/Configure.help	Fri Jan 10 20:54:52 2003
@@ -18959,6 +18959,34 @@
   The module is called rtc.o. If you want to compile it as a module,
   say M here and read <file:Documentation/modules.txt>.
 
+Generic Real Time Clock Support
+CONFIG_GEN_RTC
+  If you say Y here and create a character special file /dev/rtc with
+  major number 10 and minor number 135 using mknod ("man mknod"), you
+  will get access to the real time clock (or hardware clock) built
+  into your computer.
+
+  In 2.4 and later kernels this is the only way to set and get rtc
+  time on m68k systems so it is highly recommended.
+
+  It reports status information via the file /proc/driver/rtc and its 
+  behaviour is set by various ioctls on /dev/rtc. If you enable the
+  "extended RTC operation" below it will also provide an emulation
+  for RTC_UIE which is required by some programs and may improve
+  precision in some cases.
+
+  This driver is also available as a module ( = code which can be
+  inserted in and removed from the running kernel whenever you want).
+  The module is called genrtc.o. If you want to compile it as a module,
+  say M here and read <file:Documentation/modules.txt>. To load the
+  module automatically add 'alias char-major-10-135 genrtc' to your
+  /etc/modules.conf
+
+Extended RTC operation
+CONFIG_GEN_RTC_X
+  Provides an emulation for RTC_UIE which is required by some programs 
+  and may improve precision of the generic RTC support in some cases.
+
 Tadpole ANA H8 Support
 CONFIG_H8
   The Hitachi H8/337 is a microcontroller used to deal with the power
--- linux-2.4.20/arch/m68k/config.in	Fri Sep 13 10:14:59 2002
+++ linux-genrtc-2.4.20/arch/m68k/config.in	Fri Jan 10 20:54:25 2003
@@ -517,8 +517,11 @@
    if [ "$CONFIG_SUN3" = "y" ]; then
       define_bool CONFIG_GEN_RTC y
    else
-      bool 'Generic /dev/rtc emulation' CONFIG_GEN_RTC
+      tristate 'Generic /dev/rtc emulation' CONFIG_GEN_RTC      
    fi
+fi
+if [ "$CONFIG_GEN_RTC" != "n" ]; then
+   bool '   Extended RTC operation' CONFIG_GEN_RTC_X
 fi
 bool 'Unix98 PTY support' CONFIG_UNIX98_PTYS
 if [ "$CONFIG_UNIX98_PTYS" = "y" ]; then
--- linux-2.4.20/arch/m68k/kernel/m68k_ksyms.c	Thu Jan  4 22:00:55 2001
+++ linux-genrtc-2.4.20/arch/m68k/kernel/m68k_ksyms.c	Fri Jan 10 20:54:25 2003
@@ -18,6 +18,7 @@
 #include <asm/checksum.h>
 #include <asm/hardirq.h>
 #include <asm/softirq.h>
+#include <asm/rtc.h>
 
 asmlinkage long long __ashldi3 (long long, int);
 asmlinkage long long __ashrdi3 (long long, int);
@@ -49,6 +50,10 @@
 EXPORT_SYMBOL(kernel_set_cachemode);
 #endif /* !CONFIG_SUN3 */
 EXPORT_SYMBOL(m68k_debug_device);
+EXPORT_SYMBOL(mach_hwclk);
+EXPORT_SYMBOL(mach_get_ss);
+EXPORT_SYMBOL(mach_get_rtc_pll);
+EXPORT_SYMBOL(mach_set_rtc_pll);
 EXPORT_SYMBOL(dump_fpu);
 EXPORT_SYMBOL(dump_thread);
 EXPORT_SYMBOL(strnlen);
--- linux-2.4.20/arch/m68k/kernel/setup.c	Fri Sep 13 10:15:01 2002
+++ linux-genrtc-2.4.20/arch/m68k/kernel/setup.c	Fri Jan 10 20:54:25 2003
@@ -90,6 +90,9 @@
 void (*mach_gettod) (int*, int*, int*, int*, int*, int*);
 int (*mach_hwclk) (int, struct rtc_time*) = NULL;
 int (*mach_set_clock_mmss) (unsigned long) = NULL;
+unsigned int (*mach_get_ss)(void) = NULL;
+int (*mach_get_rtc_pll)(struct rtc_pll_info *) = NULL;
+int (*mach_set_rtc_pll)(struct rtc_pll_info *) = NULL;
 void (*mach_reset)( void );
 void (*mach_halt)( void ) = NULL;
 void (*mach_power_off)( void ) = NULL;
--- linux-2.4.20/arch/m68k/q40/config.c	Fri Sep 13 10:15:02 2002
+++ linux-genrtc-2.4.20/arch/m68k/q40/config.c	Fri Jan 10 20:54:25 2003
@@ -58,7 +58,10 @@
 extern void q40_gettod (int *year, int *mon, int *day, int *hour,
                            int *min, int *sec);
 extern int q40_hwclk (int, struct rtc_time *);
+extern unsigned int q40_get_ss (void);
 extern int q40_set_clock_mmss (unsigned long);
+static int q40_get_rtc_pll(struct rtc_pll_info *pll);
+static int q40_set_rtc_pll(struct rtc_pll_info *pll);
 extern void q40_reset (void);
 void q40_halt(void);
 extern void q40_waitbut(void);
@@ -196,6 +199,9 @@
     mach_gettimeoffset   = q40_gettimeoffset; 
     mach_gettod  	 = q40_gettod;
     mach_hwclk           = q40_hwclk; 
+    mach_get_ss          = q40_get_ss; 
+    mach_get_rtc_pll     = q40_get_rtc_pll; 
+    mach_set_rtc_pll     = q40_set_rtc_pll; 
     mach_set_clock_mmss	 = q40_set_clock_mmss;
 
     mach_reset		 = q40_reset;
@@ -331,6 +337,11 @@
 	return 0;
 }
 
+unsigned int q40_get_ss()
+{
+	return bcd2bin(Q40_RTC_SECS);
+}
+
 /*
  * Set the minutes and seconds from seconds value 'nowtime'.  Fail if
  * clock is out by > 30 minutes.  Logic lifted from atari code.
@@ -362,3 +373,33 @@
 	return retval;
 }
 
+
+/* get and set PLL calibration of RTC clock */
+#define Q40_RTC_PLL_MASK ((1<<5)-1)
+#define Q40_RTC_PLL_SIGN (1<<5)
+
+static int q40_get_rtc_pll(struct rtc_pll_info *pll)
+{
+      int tmp=Q40_RTC_CTRL;
+      pll->pll_value = tmp & Q40_RTC_PLL_MASK;
+      if (tmp & Q40_RTC_PLL_SIGN) 
+	  pll->pll_value = -pll->pll_value;
+      pll->pll_max=31;
+      pll->pll_min=-31;
+      pll->pll_posmult=512;
+      pll->pll_negmult=256;
+      pll->pll_clock=125829120;
+      return 0;
+  }
+
+static int q40_set_rtc_pll(struct rtc_pll_info *pll)
+{
+  if (!pll->pll_ctrl){
+      /* the docs are a bit unclear so I am doublesetting RTC_WRITE here ... */
+      int tmp=(pll->pll_value & 31) | (pll->pll_value<0 ? 32 : 0) | Q40_RTC_WRITE;
+      Q40_RTC_CTRL |= Q40_RTC_WRITE;
+      Q40_RTC_CTRL = tmp;
+      Q40_RTC_CTRL &= ~(Q40_RTC_WRITE);
+      return 0;
+  } else return -EINVAL;
+}
--- linux-2.4.20/drivers/char/Makefile	Wed Nov 27 11:02:06 2002
+++ linux-genrtc-2.4.20/drivers/char/Makefile	Fri Jan 10 20:54:25 2003
@@ -222,6 +222,7 @@
 obj-$(CONFIG_PC110_PAD) += pc110pad.o
 obj-$(CONFIG_MK712_MOUSE) += mk712.o
 obj-$(CONFIG_RTC) += rtc.o
+obj-$(CONFIG_GEN_RTC) += genrtc.o
 obj-$(CONFIG_EFI_RTC) += efirtc.o
 ifeq ($(CONFIG_PPC),)
   obj-$(CONFIG_NVRAM) += nvram.o
--- linux-2.4.20/drivers/char/genrtc.c	Thu Jan  1 01:00:00 1970
+++ linux-genrtc-2.4.20/drivers/char/genrtc.c	Fri Jan 10 20:54:52 2003
@@ -0,0 +1,533 @@
+/*
+ *	Real Time Clock interface for q40 and other m68k machines
+ *      emulate some RTC irq capabilities in software
+ *
+ *      Copyright (C) 1999 Richard Zidlicky
+ *
+ *	based on Paul Gortmaker's rtc.c device and
+ *           Sam Creasey Generic rtc driver
+ *
+ *	This driver allows use of the real time clock (built into
+ *	nearly all computers) from user space. It exports the /dev/rtc
+ *	interface supporting various ioctl() and also the /proc/dev/rtc
+ *	pseudo-file for status information.
+ *
+ *	The ioctls can be used to set the interrupt behaviour where
+ *  supported.
+ *
+ *	The /dev/rtc interface will block on reads until an interrupt
+ *	has been received. If a RTC interrupt has already happened,
+ *	it will output an unsigned long and then block. The output value
+ *	contains the interrupt status in the low byte and the number of
+ *	interrupts since the last read in the remaining high bytes. The
+ *	/dev/rtc interface can also be used with the select(2) call.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+
+ *      1.01 fix for 2.3.X                    rz@linux-m68k.org
+ *      1.02 merged with code from genrtc.c   rz@linux-m68k.org
+ *      1.03 make it more portable            zippel@linux-m68k.org
+ *      1.04 removed useless timer code       rz@linux-m68k.org
+ *      1.05 portable RTC_UIE emulation       rz@linux-m68k.org
+ *      1.06 set_rtc_time can return an error trini@kernel.crashing.org
+ */
+
+#define RTC_VERSION	"1.06"
+
+#include <linux/module.h>
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/miscdevice.h>
+#include <linux/fcntl.h>
+
+#include <linux/rtc.h>
+#include <linux/init.h>
+#include <linux/poll.h>
+#include <linux/proc_fs.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/rtc.h>
+
+/*
+ *	We sponge a minor off of the misc major. No need slurping
+ *	up another valuable major dev number for this. If you add
+ *	an ioctl, make sure you don't conflict with SPARC's RTC
+ *	ioctls.
+ */
+
+static DECLARE_WAIT_QUEUE_HEAD(gen_rtc_wait);
+
+static int gen_rtc_ioctl(struct inode *inode, struct file *file,
+		     unsigned int cmd, unsigned long arg);
+
+/*
+ *	Bits in gen_rtc_status.
+ */
+
+#define RTC_IS_OPEN		0x01	/* means /dev/rtc is in use	*/
+
+unsigned char gen_rtc_status;		/* bitmapped status byte.	*/
+unsigned long gen_rtc_irq_data;		/* our output to the world	*/
+
+/* months start at 0 now */
+unsigned char days_in_mo[] =
+{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
+
+static int irq_active;
+
+#ifdef CONFIG_GEN_RTC_X
+struct tq_struct genrtc_task;
+static struct timer_list timer_task;
+
+static unsigned int oldsecs;
+static int lostint;
+static int tt_exp;
+
+void gen_rtc_timer(unsigned long data);
+
+static volatile int stask_active;              /* schedule_task */
+static volatile int ttask_active;              /* timer_task */
+static int stop_rtc_timers;                    /* don't requeue tasks */
+static spinlock_t gen_rtc_lock = SPIN_LOCK_UNLOCKED;
+
+/*
+ * Routine to poll RTC seconds field for change as often as posible,
+ * after first RTC_UIE use timer to reduce polling
+ */
+void genrtc_troutine(void *data)
+{
+	unsigned int tmp = get_rtc_ss();
+	
+	if (stop_rtc_timers) {
+		stask_active = 0;
+		return;
+	}
+
+	if (oldsecs != tmp){
+		oldsecs = tmp;
+
+		timer_task.function = gen_rtc_timer;
+		timer_task.expires = jiffies + HZ - (HZ/10);
+		tt_exp=timer_task.expires;
+		ttask_active=1;
+		stask_active=0;
+		add_timer(&timer_task);
+
+		gen_rtc_interrupt(0);
+	} else if (schedule_task(&genrtc_task) == 0)
+		stask_active = 0;
+}
+
+void gen_rtc_timer(unsigned long data)
+{
+	lostint = get_rtc_ss() - oldsecs ;
+	if (lostint<0) 
+		lostint = 60 - lostint;
+	if (time_after(jiffies, tt_exp))
+		printk(KERN_INFO "genrtc: timer task delayed by %ld jiffies\n",
+		       jiffies-tt_exp);
+	ttask_active=0;
+	stask_active=1;
+	if ((schedule_task(&genrtc_task) == 0))
+		stask_active = 0;
+}
+
+/* 
+ * call gen_rtc_interrupt function to signal an RTC_UIE,
+ * arg is unused.
+ * Could be invoked either from a real interrupt handler or
+ * from some routine that periodically (eg 100HZ) monitors
+ * whether RTC_SECS changed
+ */
+void gen_rtc_interrupt(unsigned long arg)
+{
+	/*  We store the status in the low byte and the number of
+	 *	interrupts received since the last read in the remainder
+	 *	of rtc_irq_data.  */
+
+	gen_rtc_irq_data += 0x100;
+	gen_rtc_irq_data &= ~0xff;
+	gen_rtc_irq_data |= RTC_UIE;
+
+	if (lostint){
+		printk("genrtc: system delaying clock ticks?\n");
+		/* increment count so that userspace knows something is wrong */
+		gen_rtc_irq_data += ((lostint-1)<<8);
+		lostint = 0;
+	}
+
+	wake_up_interruptible(&gen_rtc_wait);
+}
+
+/*
+ *	Now all the various file operations that we export.
+ */
+static ssize_t gen_rtc_read(struct file *file, char *buf,
+			size_t count, loff_t *ppos)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	unsigned long data;
+	ssize_t retval;
+
+	if (count != sizeof (unsigned int) && count != sizeof (unsigned long))
+		return -EINVAL;
+
+	if (file->f_flags & O_NONBLOCK && !gen_rtc_irq_data)
+		return -EAGAIN;
+
+	add_wait_queue(&gen_rtc_wait, &wait);
+	retval = -ERESTARTSYS;
+
+	while (1) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		data = xchg(&gen_rtc_irq_data, 0);
+		if (data)
+			break;
+		if (signal_pending(current))
+			goto out;
+		schedule();
+	}
+
+	/* first test allows optimizer to nuke this case for 32-bit machines */
+	if (sizeof (int) != sizeof (long) && count == sizeof (unsigned int)) {
+		unsigned int uidata = data;
+		retval = put_user(uidata, (unsigned long *)buf);
+	}
+	else {
+		retval = put_user(data, (unsigned long *)buf);
+	}
+	if (!retval)
+		retval = sizeof(unsigned long);
+ out:
+	current->state = TASK_RUNNING;
+	remove_wait_queue(&gen_rtc_wait, &wait);
+
+	return retval;
+}
+
+static unsigned int gen_rtc_poll(struct file *file,
+				 struct poll_table_struct *wait)
+{
+	poll_wait(file, &gen_rtc_wait, wait);
+	if (gen_rtc_irq_data != 0)
+		return POLLIN | POLLRDNORM;
+	return 0;
+}
+
+#endif
+
+/*
+ * Used to disable/enable interrupts, only RTC_UIE supported
+ * We also clear out any old irq data after an ioctl() that
+ * meddles with the interrupt enable/disable bits.
+ */
+
+static inline void gen_clear_rtc_irq_bit(unsigned char bit)
+{
+#ifdef CONFIG_GEN_RTC_X
+	stop_rtc_timers = 1;
+	if (ttask_active){
+		del_timer_sync(&timer_task);
+		ttask_active = 0;
+	}
+	while (stask_active)
+		schedule();
+
+	spin_lock(&gen_rtc_lock);
+	irq_active = 0;
+	spin_unlock(&gen_rtc_lock);
+#endif
+}
+
+static inline int gen_set_rtc_irq_bit(unsigned char bit)
+{
+#ifdef CONFIG_GEN_RTC_X
+	spin_lock(&gen_rtc_lock);
+	if ( !irq_active ) {
+		irq_active = 1;
+		stop_rtc_timers = 0;
+		lostint = 0;
+		genrtc_task.routine = genrtc_troutine;
+		oldsecs = get_rtc_ss();
+		init_timer(&timer_task);
+
+		stask_active = 1;
+		if (schedule_task(&genrtc_task) == 0){
+			stask_active = 0;
+		}
+	}
+	spin_unlock(&gen_rtc_lock);
+	gen_rtc_irq_data = 0;
+	return 0;
+#else
+	return -EINVAL;
+#endif
+}
+
+static int gen_rtc_ioctl(struct inode *inode, struct file *file,
+			 unsigned int cmd, unsigned long arg)
+{
+	struct rtc_time wtime;
+	struct rtc_pll_info pll;
+
+	switch (cmd) {
+
+	case RTC_PLL_GET:
+	    if (get_rtc_pll(&pll))
+	 	    return -EINVAL;
+	    else
+		    return copy_to_user((void *)arg, &pll, sizeof pll) ? -EFAULT : 0;
+
+	case RTC_PLL_SET:
+		if (!capable(CAP_SYS_TIME))
+			return -EACCES;
+		if (copy_from_user(&pll, (struct rtc_pll_info*)arg,
+				   sizeof(pll)))
+			return -EFAULT;
+	    return set_rtc_pll(&pll);
+
+	case RTC_UIE_OFF:	/* disable ints from RTC updates.	*/
+		gen_clear_rtc_irq_bit(RTC_UIE);
+		return 0;
+
+	case RTC_UIE_ON:	/* enable ints for RTC updates.	*/
+	        return gen_set_rtc_irq_bit(RTC_UIE);
+
+	case RTC_RD_TIME:	/* Read the time/date from RTC	*/
+		/* this doesn't get week-day, who cares */
+		memset(&wtime, 0, sizeof(wtime));
+		get_rtc_time(&wtime);
+
+		return copy_to_user((void *)arg, &wtime, sizeof(wtime)) ? -EFAULT : 0;
+
+	case RTC_SET_TIME:	/* Set the RTC */
+	    {
+		int year;
+		unsigned char leap_yr;
+
+		if (!capable(CAP_SYS_TIME))
+			return -EACCES;
+
+		if (copy_from_user(&wtime, (struct rtc_time *)arg,
+				   sizeof(wtime)))
+			return -EFAULT;
+
+		year = wtime.tm_year + 1900;
+		leap_yr = ((!(year % 4) && (year % 100)) ||
+			   !(year % 400));
+
+		if ((wtime.tm_mon < 0 || wtime.tm_mon > 11) || (wtime.tm_mday < 1))
+			return -EINVAL;
+
+		if (wtime.tm_mday < 0 || wtime.tm_mday >
+		    (days_in_mo[wtime.tm_mon] + ((wtime.tm_mon == 1) && leap_yr)))
+			return -EINVAL;
+
+		if (wtime.tm_hour < 0 || wtime.tm_hour >= 24 ||
+		    wtime.tm_min < 0 || wtime.tm_min >= 60 ||
+		    wtime.tm_sec < 0 || wtime.tm_sec >= 60)
+			return -EINVAL;
+
+		return set_rtc_time(&wtime);
+	    }
+	}
+
+	return -EINVAL;
+}
+
+/*
+ *	We enforce only one user at a time here with the open/close.
+ *	Also clear the previous interrupt data on an open, and clean
+ *	up things on a close.
+ */
+
+static int gen_rtc_open(struct inode *inode, struct file *file)
+{
+	if (gen_rtc_status & RTC_IS_OPEN)
+		return -EBUSY;
+
+	MOD_INC_USE_COUNT;
+
+	gen_rtc_status |= RTC_IS_OPEN;
+	gen_rtc_irq_data = 0;
+	irq_active = 0;
+
+	return 0;
+}
+
+static int gen_rtc_release(struct inode *inode, struct file *file)
+{
+	/*
+	 * Turn off all interrupts once the device is no longer
+	 * in use and clear the data.
+	 */
+
+	gen_clear_rtc_irq_bit(RTC_PIE|RTC_AIE|RTC_UIE);
+
+	gen_rtc_status &= ~RTC_IS_OPEN;
+	MOD_DEC_USE_COUNT;
+
+	return 0;
+}
+
+static int gen_rtc_read_proc(char *page, char **start, off_t off,
+			     int count, int *eof, void *data);
+
+
+/*
+ *	The various file operations we support.
+ */
+
+static struct file_operations gen_rtc_fops = {
+	owner:		THIS_MODULE,
+#ifdef CONFIG_GEN_RTC_X
+	read:		gen_rtc_read,
+	poll:		gen_rtc_poll,
+#endif
+	ioctl:		gen_rtc_ioctl,
+	open:		gen_rtc_open,
+	release:	gen_rtc_release
+};
+
+static struct miscdevice rtc_gen_dev =
+{
+	RTC_MINOR,
+	"rtc",
+	&gen_rtc_fops
+};
+
+int __init rtc_generic_init(void)
+{
+	int retval;
+
+	printk(KERN_INFO "Generic RTC Driver v%s\n", RTC_VERSION);
+
+	retval = misc_register(&rtc_gen_dev);
+	if(retval < 0)
+		return retval;
+
+#ifdef CONFIG_PROC_FS
+	if((create_proc_read_entry ("driver/rtc", 0, 0, gen_rtc_read_proc, NULL)) == NULL){
+		misc_deregister(&rtc_gen_dev);
+		return -ENOMEM;
+	}
+#endif
+
+	return 0;
+}
+
+static void __exit rtc_generic_exit(void)
+{
+	remove_proc_entry ("driver/rtc", NULL);
+	misc_deregister(&rtc_gen_dev);
+}
+
+module_init(rtc_generic_init);
+module_exit(rtc_generic_exit);
+EXPORT_NO_SYMBOLS;
+
+
+/*
+ *	Info exported via "/proc/rtc".
+ */
+
+int gen_rtc_proc_output(char *buf)
+{
+	char *p;
+	struct rtc_time tm;
+	unsigned tmp;
+	struct rtc_pll_info pll;
+
+	p = buf;
+
+	get_rtc_time(&tm);
+
+	p += sprintf(p,
+		     "rtc_time\t: %02d:%02d:%02d\n"
+		     "rtc_date\t: %04d-%02d-%02d\n"
+		     "rtc_epoch\t: %04u\n",
+		     tm.tm_hour, tm.tm_min, tm.tm_sec,
+		     tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, 1900);
+
+	tm.tm_hour=0;tm.tm_min=0;tm.tm_sec=0;
+
+	p += sprintf(p, "alarm\t\t: ");
+	if (tm.tm_hour <= 24)
+		p += sprintf(p, "%02d:", tm.tm_hour);
+	else
+		p += sprintf(p, "**:");
+
+	if (tm.tm_min <= 59)
+		p += sprintf(p, "%02d:", tm.tm_min);
+	else
+		p += sprintf(p, "**:");
+
+	if (tm.tm_sec <= 59)
+		p += sprintf(p, "%02d\n", tm.tm_sec);
+	else
+		p += sprintf(p, "**\n");
+
+	tmp= RTC_24H ;
+	p += sprintf(p,
+		     "DST_enable\t: %s\n"
+		     "BCD\t\t: %s\n"
+		     "24hr\t\t: %s\n"
+		     "square_wave\t: %s\n"
+		     "alarm_IRQ\t: %s\n"
+		     "update_IRQ\t: %s\n"
+		     "periodic_IRQ\t: %s\n"
+		     "periodic_freq\t: %ld\n"
+		     "batt_status\t: %s\n",
+		     (tmp & RTC_DST_EN) ? "yes" : "no",
+		     (tmp & RTC_DM_BINARY) ? "no" : "yes",
+		     (tmp & RTC_24H) ? "yes" : "no",
+		     (tmp & RTC_SQWE) ? "yes" : "no",
+		     (tmp & RTC_AIE) ? "yes" : "no",
+		     irq_active ? "yes" : "no",
+		     (tmp & RTC_PIE) ? "yes" : "no",
+		     0L /* freq */,
+		     "okay" );
+	if (!get_rtc_pll(&pll))
+	    p += sprintf(p,
+			 "PLL adjustment\t: %d\n"
+			 "PLL max +ve adjustment\t: %d\n"
+			 "PLL max -ve adjustment\t: %d\n"
+			 "PLL +ve adjustment factor\t: %d\n"
+			 "PLL -ve adjustment factor\t: %d\n"
+			 "PLL frequency\t: %ld\n",
+			 pll.pll_value,
+			 pll.pll_max,
+			 pll.pll_min,
+			 pll.pll_posmult,
+			 pll.pll_negmult,
+			 pll.pll_clock);
+	return  p - buf;
+}
+
+static int gen_rtc_read_proc(char *page, char **start, off_t off,
+			     int count, int *eof, void *data)
+{
+	int len = gen_rtc_proc_output (page);
+        if (len <= off+count) *eof = 1;
+	*start = page + off;
+	len -= off;
+        if (len>count) len = count;
+        if (len<0) len = 0;
+	return len;
+}
+
+
+MODULE_AUTHOR("Richard Zidlicky");
+MODULE_LICENSE("GPL");
+
+/*
+ * Local variables:
+ * compile-command: "m68k-linux-gcc -D__KERNEL__ -I../../include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -pipe -fno-strength-reduce -ffixed-a2 -c -o genrtc.o genrtc.c"
+ * End:
+ */
+
--- linux-2.4.20/include/asm-m68k/machdep.h	Wed May 29 10:14:12 2002
+++ linux-genrtc-2.4.20/include/asm-m68k/machdep.h	Fri Jan 10 20:54:25 2003
@@ -5,6 +5,7 @@
 struct kbd_repeat;
 struct mktime;
 struct rtc_time;
+struct rtc_pll_info;
 struct gendisk;
 struct buffer_head;
 
@@ -29,6 +30,9 @@
 extern void (*mach_gettod)(int *year, int *mon, int *day, int *hour,
 			   int *min, int *sec);
 extern int (*mach_hwclk)(int, struct rtc_time*);
+extern unsigned int (*mach_get_ss)(void);
+extern int (*mach_get_rtc_pll)(struct rtc_pll_info *);
+extern int (*mach_set_rtc_pll)(struct rtc_pll_info *);
 extern int (*mach_set_clock_mmss)(unsigned long);
 extern void (*mach_reset)( void );
 extern void (*mach_halt)( void );
--- linux-2.4.20/include/asm-m68k/rtc.h	Wed May 29 10:14:13 2002
+++ linux-genrtc-2.4.20/include/asm-m68k/rtc.h	Fri Jan 10 20:54:25 2003
@@ -13,9 +13,8 @@
 
 #ifdef __KERNEL__
 
-#include <linux/config.h>
 #include <linux/rtc.h>
-#include <linux/delay.h>
+#include <asm/errno.h>
 #include <asm/machdep.h>
 
 #define RTC_PIE 0x40		/* periodic interrupt enable */
@@ -30,7 +29,48 @@
 #define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
 #define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
 
+static inline void get_rtc_time(struct rtc_time *time)
+{
+	/*
+	 * Only the values that we read from the RTC are set. We leave
+	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
+	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
+	 * by the RTC when initially set to a non-zero value.
+	 */
+	mach_hwclk(0, time);
+}
 
+static inline int set_rtc_time(struct rtc_time *time)
+{
+	return mach_hwclk(1, time);
+}
+
+static inline unsigned int get_rtc_ss(void)
+{
+	if (mach_get_ss)
+		return mach_get_ss();
+	else{
+		struct rtc_time h;
+		
+		get_rtc_time(&h);
+		return h.tm_sec;
+	}
+}
+
+static inline int get_rtc_pll(struct rtc_pll_info *pll)
+{
+	if (mach_get_rtc_pll)
+		return mach_get_rtc_pll(pll);
+	else
+		return -EINVAL;
+}
+static inline int set_rtc_pll(struct rtc_pll_info *pll)
+{
+	if (mach_set_rtc_pll)
+		return mach_set_rtc_pll(pll);
+	else
+		return -EINVAL;
+}
 #endif /* __KERNEL__ */
 
 #endif /* _ASM__RTC_H */
--- linux-2.4.20/include/linux/rtc.h	Mon Feb 19 09:47:19 2001
+++ linux-genrtc-2.4.20/include/linux/rtc.h	Fri Jan 10 20:54:25 2003
@@ -39,10 +39,32 @@
 	struct rtc_time time;	/* time the alarm is set to */
 };
 
+/*
+ * Data structure to control PLL correction some better RTC feature
+ * pll_value is used to get or set current value of correction,
+ * the rest of the struct is used to query HW capabilities.
+ * This is modeled after the RTC used in Q40/Q60 computers but
+ * should be sufficiently flexible for other devices
+ *
+ * +ve pll_value means clock will run faster by
+ *   pll_value*pll_posmult/pll_clock
+ * -ve pll_value means clock will run slower by
+ *   pll_value*pll_negmult/pll_clock
+ */ 
+
+struct rtc_pll_info {
+	int pll_ctrl;       /* placeholder for fancier control */
+	int pll_value;      /* get/set correction value */
+	int pll_max;        /* max +ve (faster) adjustment value */
+	int pll_min;        /* max -ve (slower) adjustment value */
+	int pll_posmult;    /* factor for +ve corection */
+	int pll_negmult;    /* factor for -ve corection */
+	long pll_clock;     /* base PLL frequency */
+};
 
 /*
- * ioctl calls that are permitted to the /dev/rtc interface, if 
- * CONFIG_RTC/CONFIG_EFI_RTC was enabled.
+ * ioctl calls that are permitted to the /dev/rtc interface, if
+ * any of the RTC drivers are enabled.
  */
 
 #define RTC_AIE_ON	_IO('p', 0x01)	/* Alarm int. enable on		*/
@@ -66,4 +88,6 @@
 #define RTC_WKALM_SET	_IOW('p', 0x0f, struct rtc_wkalrm)/* Set wakeup alarm*/
 #define RTC_WKALM_RD	_IOR('p', 0x10, struct rtc_wkalrm)/* Get wakeup alarm*/
 
+#define RTC_PLL_GET	_IOR('p', 0x11, struct rtc_pll_info)  /* Get PLL correction */
+#define RTC_PLL_SET	_IOW('p', 0x12, struct rtc_pll_info)  /* Set PLL correction */
 #endif /* _LINUX_RTC_H_ */

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds



From - Thu Nov 08 21:26:15 2018
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On Fri, 10 Jan 2003 19:47:52 +0100
jsoe0708@tiscali.be wrote:

> 
> >-- Original Message --
> >Date: Fri, 10 Jan 2003 17:08:13 +0000
> >From: Matthew Wilcox <willy@debian.org>
> >To: jsoe0708@tiscali.be
> >Cc: Randolph Chung <randolph@tausq.org>,
> >	parisc-linux@lists.parisc-linux.org
> >Subject: Re: [parisc-linux] unaligned accesses
> >
> >
> >On Fri, Jan 10, 2003 at 11:51:41AM +0100, jsoe0708@tiscali.be wrote:
> >> PS:  with ext3 (which I use) problem I hesitate to install 2.4.20 and
> waiting
> >> for 2.4.21 and evms, jfs, xfs support for this system)
> >
> >um, you use the data=ordered mount option (or whatever it was)?
it was data=journal
see http://developers.slashdot.org/developers/02/12/02/0128206.shtml?tid=106

FWIW, the default option (used by most people) is data=journal, and is not affected by that bug. We've been using 2.4.20 with ext3 for weeks pretty safely here.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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On Fri, 10 Jan 2003 23:13:13 +0100
"Thibaut VARENE" <varenet@esiee.fr> wrote:

I hate to reply to myself but I said crap in my previous mail.
All apologies:
> FWIW, the default option (used by most people) is data=journal, and is not affected by that bug. We've been using 2.4.20 with ext3 for weeks pretty safely here.
it was: "the default option is data=ordered" of course, which is safe.

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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David, you wrote:

> I looked at the assembly code.  The original test was done under hpux.
> I see that the call to ull2dbl has been optimized out of the loop.  It
> is just called once.  So, the code probably is trapping there as well.

Ok, that's good to hear.  Your info, along with Randolph's info that it
traps on the 8500, 8600, and 8700 CPUs, leads me to the same conclusion
as Randolph came to.  It looks like there's something wrong with the
fcnv emulation in the linux kernel's emulation handler, even though it
was derived from the hpux handler, where everything appears to work
fine.

 -- Jim



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> Ok, that's good to hear.  Your info, along with Randolph's info that it
> traps on the 8500, 8600, and 8700 CPUs, leads me to the same conclusion
> as Randolph came to.  It looks like there's something wrong with the
> fcnv emulation in the linux kernel's emulation handler, even though it
> was derived from the hpux handler, where everything appears to work
> fine.

I think i found it....

for class 1 ops (fcnv) pa20 has a 3-bit subop field, pa11 has a 2-bit
subop field, which determines the source/target formats. our code is not
correctly determining pa11 vs pa20, so it defaults to pa11 and uses
subop==1 instead of subop==5

now, the tricky part is how to get it to detect the right type. the code
looks like this:

fpu_type_flags=fpregs[FPU_TYPE_FLAG_POS];  /* get fpu type flags */
if  (fpu_type_flags & PA2_0_FPU_FLAG)
    subop = get_subop1_PA2_0(ir);
else
    subop = get_subop1_PA1_1(ir);

FPU_TYPE_FLAG_POS is defined as
#define EM_FPU_TYPE_OFFSET 272
#define FPU_TYPE_FLAG_POS (EM_FPU_TYPE_OFFSET>>2)
(272>>2 == 68)

so, i wonder:
1) why those numbers? (where is it documented?)
2) is there a special way to read that fpu type from the fpu? or do we
use boot_cpu_data.cpu_type?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Fri, Jan 10, 2003 at 10:16:38PM -0800, Randolph Chung wrote:
> so, i wonder:
> 1) why those numbers? (where is it documented?)

no clue - PDC calls don't document that?

> 2) is there a special way to read that fpu type from the fpu?

yes. PDC can tell you the FPU model. I'll have to look up the call.
I had the impression it was better to use FP info to identify the CPU model
than the other PDC info - but what we have seems to work.

> or do we use boot_cpu_data.cpu_type?
Maybe the same call returns both CPU and FPU identifiers.
Don't recall offhand. If someone doesn't know offhand,
I'll look it up.

grant


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Hi,

I'm currently thinking about the installation of Linux on
a J282. I do have also a few ancient NICs flying around

   - J2802B-1303 ATM-Board, EISA, 155MBit/s
   - Interphase FDDI Board (also EISA)

and I'm interesed if those boards are supported by Linux.

  Nic


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> I think i found it....
> 
> for class 1 ops (fcnv) pa20 has a 3-bit subop field, pa11 has a 2-bit
> subop field, which determines the source/target formats. our code is not
> correctly determining pa11 vs pa20, so it defaults to pa11 and uses
> subop==1 instead of subop==5
> 
> now, the tricky part is how to get it to detect the right type. the code
> looks like this:
> 
> fpu_type_flags=fpregs[FPU_TYPE_FLAG_POS];  /* get fpu type flags */
> if  (fpu_type_flags & PA2_0_FPU_FLAG)
>     subop = get_subop1_PA2_0(ir);
> else
>     subop = get_subop1_PA1_1(ir);

I think that you probably should always use a 3-bit extract.  If the
value is greater than 3 on a PA 1.1 FPU, then the operation is undefined.
4 is also undefined for PA 2.0.

The above assumes that the kernel doesn't provide PA 2.0 emulation
on PA 1.1 machines.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Friday 10 January 2003 21:05, Geert Uytterhoeven wrote:
> Unfortunately I didn't receive any feedback from the pa-risc and ppc people
> after my previous posting last Sunday.

Hi Geert,

It took me some time, but here are the PA-RISC specific patches vs. your 
latest genrtc driver.

Please consider applying,
Helge

ChangeLog:
- small indenting fixes,
- new driver version number
- more "static" functions
- C99 named initializers
- added RTC_BATT_BAD capatibility flag (for the procfs-interface),
- get_rtc_time() now returns the "capatibilities" value (e.g. RTC_BATT_BAD | RTC_24H)
[this means, the m86k get_rtc_time() function has to return a value too.


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--- ./drivers/char/genrtc.c.geert	Sat Jan 11 18:14:50 2003
+++ ./drivers/char/genrtc.c	Sat Jan 11 20:36:28 2003
@@ -1,5 +1,8 @@
 /*
- *	Real Time Clock interface for q40 and other m68k machines
+ *	Real Time Clock interface for
+ *		- q40 and other m68k machines,
+ *		- HP PARISC machines
+ *		- PowerPC machines
  *      emulate some RTC irq capabilities in software
  *
  *      Copyright (C) 1999 Richard Zidlicky
@@ -13,7 +16,7 @@
  *	pseudo-file for status information.
  *
  *	The ioctls can be used to set the interrupt behaviour where
- *  supported.
+ *	supported.
  *
  *	The /dev/rtc interface will block on reads until an interrupt
  *	has been received. If a RTC interrupt has already happened,
@@ -34,9 +37,10 @@
  *      1.04 removed useless timer code       rz@linux-m68k.org
  *      1.05 portable RTC_UIE emulation       rz@linux-m68k.org
  *      1.06 set_rtc_time can return an error trini@kernel.crashing.org
+ *      1.07 ported to HP PARISC (hppa)	      Helge Deller <deller@gmx.de>
  */
 
-#define RTC_VERSION	"1.06"
+#define RTC_VERSION	"1.07"
 
 #include <linux/module.h>
 #include <linux/config.h>
@@ -71,11 +75,11 @@
 
 #define RTC_IS_OPEN		0x01	/* means /dev/rtc is in use	*/
 
-unsigned char gen_rtc_status;		/* bitmapped status byte.	*/
-unsigned long gen_rtc_irq_data;		/* our output to the world	*/
+static unsigned char gen_rtc_status;	/* bitmapped status byte.	*/
+static unsigned long gen_rtc_irq_data;	/* our output to the world	*/
 
 /* months start at 0 now */
-unsigned char days_in_mo[] =
+static unsigned char days_in_mo[] =
 {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
 
 static int irq_active;
@@ -88,7 +92,7 @@
 static int lostint;
 static int tt_exp;
 
-void gen_rtc_timer(unsigned long data);
+static void gen_rtc_timer(unsigned long data);
 
 static volatile int stask_active;              /* schedule_task */
 static volatile int ttask_active;              /* timer_task */
@@ -99,7 +103,7 @@
  * Routine to poll RTC seconds field for change as often as posible,
  * after first RTC_UIE use timer to reduce polling
  */
-void genrtc_troutine(void *data)
+static void genrtc_troutine(void *data)
 {
 	unsigned int tmp = get_rtc_ss();
 	
@@ -123,7 +127,7 @@
 		stask_active = 0;
 }
 
-void gen_rtc_timer(unsigned long data)
+static void gen_rtc_timer(unsigned long data)
 {
 	lostint = get_rtc_ss() - oldsecs ;
 	if (lostint<0) 
@@ -144,7 +148,7 @@
  * from some routine that periodically (eg 100HZ) monitors
  * whether RTC_SECS changed
  */
-void gen_rtc_interrupt(unsigned long arg)
+static void gen_rtc_interrupt(unsigned long arg)
 {
 	/*  We store the status in the low byte and the number of
 	 *	interrupts received since the last read in the remainder
@@ -384,24 +388,24 @@
  */
 
 static struct file_operations gen_rtc_fops = {
-	owner:		THIS_MODULE,
+	.owner		= THIS_MODULE,
 #ifdef CONFIG_GEN_RTC_X
-	read:		gen_rtc_read,
-	poll:		gen_rtc_poll,
+	.read		= gen_rtc_read,
+	.poll		= gen_rtc_poll,
 #endif
-	ioctl:		gen_rtc_ioctl,
-	open:		gen_rtc_open,
-	release:	gen_rtc_release
+	.ioctl		= gen_rtc_ioctl,
+	.open		= gen_rtc_open,
+	.release	= gen_rtc_release,
 };
 
 static struct miscdevice rtc_gen_dev =
 {
-	RTC_MINOR,
-	"rtc",
-	&gen_rtc_fops
+	.minor		= RTC_MINOR,
+	.name		= "rtc",
+	.fops		= &gen_rtc_fops,
 };
 
-int __init rtc_generic_init(void)
+static int __init rtc_generic_init(void)
 {
 	int retval;
 
@@ -436,16 +440,18 @@
  *	Info exported via "/proc/rtc".
  */
 
-int gen_rtc_proc_output(char *buf)
+#ifdef CONFIG_PROC_FS
+
+static int gen_rtc_proc_output(char *buf)
 {
 	char *p;
 	struct rtc_time tm;
-	unsigned tmp;
+	unsigned flags;
 	struct rtc_pll_info pll;
 
 	p = buf;
 
-	get_rtc_time(&tm);
+	flags = get_rtc_time(&tm);
 
 	p += sprintf(p,
 		     "rtc_time\t: %02d:%02d:%02d\n"
@@ -454,7 +460,7 @@
 		     tm.tm_hour, tm.tm_min, tm.tm_sec,
 		     tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, 1900);
 
-	tm.tm_hour=0;tm.tm_min=0;tm.tm_sec=0;
+	tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
 
 	p += sprintf(p, "alarm\t\t: ");
 	if (tm.tm_hour <= 24)
@@ -472,7 +478,6 @@
 	else
 		p += sprintf(p, "**\n");
 
-	tmp= RTC_24H ;
 	p += sprintf(p,
 		     "DST_enable\t: %s\n"
 		     "BCD\t\t: %s\n"
@@ -483,15 +488,15 @@
 		     "periodic_IRQ\t: %s\n"
 		     "periodic_freq\t: %ld\n"
 		     "batt_status\t: %s\n",
-		     (tmp & RTC_DST_EN) ? "yes" : "no",
-		     (tmp & RTC_DM_BINARY) ? "no" : "yes",
-		     (tmp & RTC_24H) ? "yes" : "no",
-		     (tmp & RTC_SQWE) ? "yes" : "no",
-		     (tmp & RTC_AIE) ? "yes" : "no",
+		     (flags & RTC_DST_EN) ? "yes" : "no",
+		     (flags & RTC_DM_BINARY) ? "no" : "yes",
+		     (flags & RTC_24H) ? "yes" : "no",
+		     (flags & RTC_SQWE) ? "yes" : "no",
+		     (flags & RTC_AIE) ? "yes" : "no",
 		     irq_active ? "yes" : "no",
-		     (tmp & RTC_PIE) ? "yes" : "no",
+		     (flags & RTC_PIE) ? "yes" : "no",
 		     0L /* freq */,
-		     "okay" );
+		     (flags & RTC_BATT_BAD) ? "bad" : "okay");
 	if (!get_rtc_pll(&pll))
 	    p += sprintf(p,
 			 "PLL adjustment\t: %d\n"
@@ -506,7 +511,7 @@
 			 pll.pll_posmult,
 			 pll.pll_negmult,
 			 pll.pll_clock);
-	return  p - buf;
+	return p - buf;
 }
 
 static int gen_rtc_read_proc(char *page, char **start, off_t off,
@@ -521,6 +526,8 @@
 	return len;
 }
 
+#endif /* CONFIG_PROC_FS */
+
 
 MODULE_AUTHOR("Richard Zidlicky");
 MODULE_LICENSE("GPL");
--- ./include/asm-parisc/rtc.h.geert	Sat Jan 11 18:21:25 2003
+++ ./include/asm-parisc/rtc.h	Sat Jan 11 20:40:41 2003
@@ -0,0 +1,131 @@
+/* include/asm-parisc/rtc.h */
+
+#ifndef _ASM_RTC_H
+#define _ASM_RTC_H
+
+#ifdef __KERNEL__
+
+#include <linux/rtc.h>
+#include <asm/errno.h>
+
+#define RTC_PIE 0x40		/* periodic interrupt enable */
+#define RTC_AIE 0x20		/* alarm interrupt enable */
+#define RTC_UIE 0x10		/* update-finished interrupt enable */
+
+/* some dummy definitions */
+#define RTC_BATT_BAD 0x10	/* battery bad */
+#define RTC_SQWE 0x08		/* enable square-wave output */
+#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
+#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
+#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
+
+
+/* constants for calculation */
+#define SECS_PER_HOUR   (60 * 60)
+#define SECS_PER_DAY    (SECS_PER_HOUR * 24)
+
+#define __isleap(year) \
+  ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
+
+
+/* How many days come before each month (0-12).  */
+static const unsigned short int __mon_yday[2][13] =
+{
+	/* Normal years.  */
+	{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
+	/* Leap years.  */
+	{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
+};
+
+static inline unsigned get_rtc_time(struct rtc_time *wtime)
+{
+	/*
+	 * Only the values that we read from the RTC are set. We leave
+	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
+	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
+	 * by the RTC when initially set to a non-zero value.
+	 */
+	
+	struct pdc_tod tod_data;
+	long int days, rem, y;
+	const unsigned short int *ip;
+
+	if (pdc_tod_read(&tod_data) < 0)
+		return (RTC_24H | RTC_BATT_BAD);
+
+	
+	// most of the remainder of this function is:
+	//	Copyright (C) 1991, 1993, 1997, 1998 Free Software Foundation, Inc.
+	//	This was originally a part of the GNU C Library.
+	//      It is distributed under the GPL, and was swiped from offtime.c
+
+
+	days = tod_data.tod_sec / SECS_PER_DAY;
+	rem = tod_data.tod_sec % SECS_PER_DAY;
+
+	wtime->tm_hour = rem / SECS_PER_HOUR;
+	rem %= SECS_PER_HOUR;
+	wtime->tm_min = rem / 60;
+	wtime->tm_sec = rem % 60;
+
+	y = 1970;
+	
+#define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
+#define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400))
+
+	while (days < 0 || days >= (__isleap (y) ? 366 : 365))
+	{
+		/* Guess a corrected year, assuming 365 days per year.  */
+		long int yg = y + days / 365 - (days % 365 < 0);
+
+		/* Adjust DAYS and Y to match the guessed year.  */
+		days -= ((yg - y) * 365
+			 + LEAPS_THRU_END_OF (yg - 1)
+			 - LEAPS_THRU_END_OF (y - 1));
+		y = yg;
+	}
+	wtime->tm_year = y - 1900;
+#undef DIV
+#undef LEAPS_THRU_END_OF
+
+	ip = __mon_yday[__isleap(y)];
+	for (y = 11; days < (long int) ip[y]; --y)
+		continue;
+	days -= ip[y];
+	wtime->tm_mon = y;
+	wtime->tm_mday = days + 1;
+	
+	return (RTC_24H);
+}
+
+static inline int set_rtc_time(struct rtc_time *wtime)
+{
+	u_int32_t secs;
+
+	secs = mktime(wtime->tm_year + 1900, wtime->tm_mon + 1, wtime->tm_mday, 
+		      wtime->tm_hour, wtime->tm_min, wtime->tm_sec);
+
+	if (pdc_tod_set(secs, 0) < 0)
+		return -EINVAL;
+	else
+		return 0;
+}
+
+static inline unsigned int get_rtc_ss(void)
+{
+	return -EINVAL;
+}
+
+static inline int get_rtc_pll(struct rtc_pll_info *pll)
+{
+	return -EINVAL;
+}
+static inline int set_rtc_pll(struct rtc_pll_info *pll)
+{
+	return -EINVAL;
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM__RTC_H */
+

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From - Thu Nov 08 21:26:15 2018
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From: "Marc Eisenbarth" <marc@centraltx.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Cannot boot after installing kernel!
Date: Sat, 11 Jan 2003 15:28:21 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:17344

Well, things were going great on my C180 until just a few minutes ago
when I did:

Apt-get install kernel-image-2.4.19-32 in order to upgrade from my
2.4.17-32 kernel. Now, when I boot it hangs at:

1               1      16   f0 Palo
2            3141    4094   82 swap
5              17    3140   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 3687647 bytes @ 0x48000

Information: No console specified on kernel command line. This is
normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
palo_ke
rnel=5/boot/vmlinux'
Selected kernel: /boot/vmlinux from partition 5
ELF32 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 2503500 mediaptr 0x1000
Segment 1 load 00364000 size 674056 mediaptr 0x265000
Segment 2 load 0040c000 size 286720 mediaptr 0x30a000
Segment 3 load 00458000 size 32768 mediaptr 0x350000
Segment 4 load 0048efb8 size 110864 mediaptr 0x358fb8
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Any way I can boot back into the working kernel??

Thanks,
-Marc



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Cannot boot after installing kernel!
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Xref: news.gmane.org gmane.linux.ports.parisc:17345

On Sat, Jan 11, 2003 at 03:28:21PM -0600, Marc Eisenbarth wrote:
> Well, things were going great on my C180 until just a few minutes ago
> when I did:

i'd think this is not actually hung, it's just taking a very long time to
boot.  can you leave it for 10 minutes or so and see if it comes to life?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: [parisc-linux] 2.5.56-pa0 64bit successful boot
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This is a multi-part message in MIME format.

--Multipart_Sun__12_Jan_2003_02:10:41_+0100_1024c010
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit

Hi pa-ckers!

I just tested fresh 2.5.56 and successfully booted 64bit UP kernel.
Linux mkhppa3 2.5.56-pa0 #2 Sun Jan 12 01:34:36 CET 2003 parisc64 unknown unknown GNU/Linux

(native build with gcc 3.0.4 unofficial debs)

I had some errors with SCSI and SERIAL (see the attached dmesg and .config).
I'll have a look at them ASAP.

I'm gonna let the box run under load (seti), and see how it behaves.

I guess we can now bump pa nb to 'pa1' since the kernel has been booted ;)

FWIW, SMP kernel with the exact same configuration died just at:
POSIX conformance testing by UNIFIX

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

--Multipart_Sun__12_Jan_2003_02:10:41_+0100_1024c010
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From - Thu Nov 08 21:26:16 2018
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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: Re: [parisc-linux] 2.5.56-pa0 64bit successful boot
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Xref: news.gmane.org gmane.linux.ports.parisc:17347

On Sun, Jan 12, 2003 at 02:10:41AM +0100, Thibaut VARENE wrote:
> Hi pa-ckers!
> 
> I just tested fresh 2.5.56 and successfully booted 64bit UP kernel.
> Linux mkhppa3 2.5.56-pa0 #2 Sun Jan 12 01:34:36 CET 2003 parisc64 unknown unknown GNU/Linux

cool!

> I had some errors with SCSI and SERIAL (see the attached dmesg and .config).
> I'll have a look at them ASAP.

you can also post them here...I'll be able to look at them tomorrow.

> FWIW, SMP kernel with the exact same configuration died just at:
> POSIX conformance testing by UNIFIX

What's the UP kernel say after that when it boots?

thanks,
grant


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Xref: news.gmane.org gmane.linux.ports.parisc:17348

Hi Everyone,

Is upgrading the kernel for a stable system the same as for i386?  I
haven't done this with debian before.. but I'm sure there's something
debian about doing it.. :)

I'll find the relevant doco.. just want to know if it's the same for
the HPPA stuff.

Thanks,


Pete
:wq


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> Is upgrading the kernel for a stable system the same as for i386?  I
> haven't done this with debian before.. but I'm sure there's something
> debian about doing it.. :)
> 
> I'll find the relevant doco.. just want to know if it's the same for
> the HPPA stuff.

Check out the "Kernel installation" section of the parisc linux boot
howto

http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/kernelinstall.html

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> I think that you probably should always use a 3-bit extract.  If the
> value is greater than 3 on a PA 1.1 FPU, then the operation is undefined.
> 4 is also undefined for PA 2.0.

I guess that'll work, altho there are also some paths that are pcx-s and
pcx-t specific, so we probably still need to determine what processor we
are running on

> The above assumes that the kernel doesn't provide PA 2.0 emulation
> on PA 1.1 machines.

yup, that should be a reasonable assumption.

anyway, here's what i'm considering to commit to our kernel tree. it 
has been tested to work with the fcnv code posted earlier. haven't 
tested the other cases yet. it's very much a hack. comments?

Index: arch/parisc/math-emu/driver.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/math-emu/driver.c,v
retrieving revision 1.1
diff -u -p -r1.1 driver.c
--- arch/parisc/math-emu/driver.c	20 Jul 2002 16:32:35 -0000	1.1
+++ arch/parisc/math-emu/driver.c	12 Jan 2003 08:39:10 -0000
@@ -86,8 +86,12 @@ handle_fpe(struct pt_regs *regs)
 	int signalcode;
 	/* need an intermediate copy of float regs because FPU emulation
 	 * code expects an artificial last entry which contains zero
+	 *
+	 * also, the passed in fr registers contain one word that defines
+	 * the fpu type. the fpu type information is constructed 
+	 * inside the emulation code
 	 */
-	__u64 frcopy[33];
+	__u64 frcopy[36];
 
 	memcpy(frcopy, regs->fr, sizeof regs->fr);
 	frcopy[32] = 0;
Index: arch/parisc/math-emu/fpudispatch.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/math-emu/fpudispatch.c,v
retrieving revision 1.1
diff -u -p -r1.1 fpudispatch.c
--- arch/parisc/math-emu/fpudispatch.c	20 Jul 2002 16:32:35 -0000	1.1
+++ arch/parisc/math-emu/fpudispatch.c	12 Jan 2003 08:39:10 -0000
@@ -51,6 +51,7 @@
 
 #include "float.h"
 #include "types.h"
+#include <asm/processor.h>
 /* #include <sys/debug.h> */
 /* #include <machine/sys/mdep_private.h> */
 
@@ -166,6 +167,20 @@ static void update_status_cbit();
 
 #define VASSERT(x)
 
+static void parisc_linux_get_fpu_type(u_int fpregs[])
+{
+	/* on pa-linux the fpu type is not filled in by the
+	 * caller; it is constructed here  
+	 */ 
+	if (boot_cpu_data.cpu_type == pcxs)
+		fpregs[FPU_TYPE_FLAG_POS] = TIMEX_EXTEN_FLAG;
+	else if (boot_cpu_data.cpu_type == pcxt ||
+	         boot_cpu_data.cpu_type == pcxt_)
+		fpregs[FPU_TYPE_FLAG_POS] = ROLEX_EXTEN_FLAG;
+	else if (boot_cpu_data.cpu_type >= pcxu)
+		fpregs[FPU_TYPE_FLAG_POS] = PA2_0_FPU_FLAG;
+}
+
 /*
  * this routine will decode the excepting floating point instruction and
  * call the approiate emulation routine.
@@ -183,6 +198,8 @@ fpudispatch(u_int ir, u_int excp_code, u
 
 	/* All FP emulation code assumes that ints are 4-bytes in length */
 	VASSERT(sizeof(int) == 4);
+
+	parisc_linux_get_fpu_type(fpregs);
 
 	fpu_type_flags=fpregs[FPU_TYPE_FLAG_POS];  /* get fpu type flags */
 
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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glibc provides an interface to call a system call from userspace
directly using the syscall() function.  The glibc exported interface for
syscall() is variadic (int syscall(int sysno, ...))

for hppa, the implementation has this prototype:

int syscall (int sysnum, int arg0, int arg1, int arg2, int arg3, int arg4, int arg5)

one problem with this is that one cannot reliably pass 64-bit values
into the kernel. for example, if i want to call a syscall with this
signature:

sys_foo(uint64_t x, int y, int z)
(let's say sys_foo has syscall number 300)

the x argument does not end up in arg0... instead it seems to be spread
across arg1 and arg2 (because of register alignment, i suppose)

is there any way to write syscall() so that we can pass 64-bit values
reliably?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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* Randolph Chung (randolph@tausq.org) wrote:


> > Is upgrading the kernel for a stable system the same as for i386?  I
> > haven't done this with debian before.. but I'm sure there's something
> > debian about doing it.. :)
> > 
> > I'll find the relevant doco.. just want to know if it's the same for
> > the HPPA stuff.
> 
> Check out the "Kernel installation" section of the parisc linux boot
> howto
> 
> http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/kernelinstall.html

Thanks... this outlines what to do with a custom kernel.. I was
thinking there might be a debian way... like with kernel-packages (I
just reading up about it now for my i386 based system).

The kernel on the 715/64 is from last year sometime ago... I can get
the kernel version with uname becuase it seg faults.


Pete
:wq


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Subject: [parisc-linux] Re: Generic RTC driver in 2.4.x
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On Sat, 11 Jan 2003, Helge Deller wrote:
> On Friday 10 January 2003 21:05, Geert Uytterhoeven wrote:
> > Unfortunately I didn't receive any feedback from the pa-risc and ppc people
> > after my previous posting last Sunday.
> 
> It took me some time, but here are the PA-RISC specific patches vs. your 
> latest genrtc driver.
> 
> Please consider applying,

Thanks! Applied.

I made some more changes afterwards:
  - Remove unnecessary forward declaration of gen_rtc_ioctl()
  - Add forward declaration for gen_rtc_interrupt()
  - Remove obsolete extern declaration for gen_rtc_interrupt() on m68k
  - Change `unsigned' to `unsigned int'
  - Change value of RTC_BATT_BAD to 0x100 (0x10 conflicted with RTC_UIE, and
    0x01 is already used in <linux/mc146818rtc.h>)
  - Update m68k get_rtc_time() to return flags

BTW, perhaps we should move the global RTC_* definitions in <asm/rtc.h> to
<linux/genrtc.h>, or merge them with the ones in <linux/mc146818rtc.h> and move
them to <linux/rtc.h>?

--- linux-genrtc-parisc-2.4.20/drivers/char/genrtc.c	Sun Jan 12 12:01:23 2003
+++ linux-m68k-2.4.20/drivers/char/genrtc.c	Sun Jan 12 12:18:21 2003
@@ -66,8 +66,8 @@
 
 static DECLARE_WAIT_QUEUE_HEAD(gen_rtc_wait);
 
-static int gen_rtc_ioctl(struct inode *inode, struct file *file,
-		     unsigned int cmd, unsigned long arg);
+static void gen_rtc_interrupt(unsigned long arg);
+
 
 /*
  *	Bits in gen_rtc_status.
@@ -446,7 +446,7 @@
 {
 	char *p;
 	struct rtc_time tm;
-	unsigned flags;
+	unsigned int flags;
 	struct rtc_pll_info pll;
 
 	p = buf;
--- linux-genrtc-parisc-2.4.20/include/asm-parisc/rtc.h	Sun Jan 12 12:01:23 2003
+++ linux-m68k-2.4.20/include/asm-parisc/rtc.h	Sun Jan 12 11:05:53 2003
@@ -12,8 +12,9 @@
 #define RTC_AIE 0x20		/* alarm interrupt enable */
 #define RTC_UIE 0x10		/* update-finished interrupt enable */
 
+#define RTC_BATT_BAD 0x100	/* battery bad */
+
 /* some dummy definitions */
-#define RTC_BATT_BAD 0x10	/* battery bad */
 #define RTC_SQWE 0x08		/* enable square-wave output */
 #define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
 #define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
@@ -37,7 +38,7 @@
 	{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
 };
 
-static inline unsigned get_rtc_time(struct rtc_time *wtime)
+static inline unsigned int get_rtc_time(struct rtc_time *wtime)
 {
 	/*
 	 * Only the values that we read from the RTC are set. We leave
--- linux-genrtc-parisc-2.4.20/include/asm-m68k/rtc.h	Fri Jan 10 20:54:25 2003
+++ linux-m68k-2.4.20/include/asm-m68k/rtc.h	Sun Jan 12 12:18:29 2003
@@ -21,15 +21,14 @@
 #define RTC_AIE 0x20		/* alarm interrupt enable */
 #define RTC_UIE 0x10		/* update-finished interrupt enable */
 
-extern void gen_rtc_interrupt(unsigned long);
-
 /* some dummy definitions */
+#define RTC_BATT_BAD 0x100	/* battery bad */
 #define RTC_SQWE 0x08		/* enable square-wave output */
 #define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
 #define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
 #define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
 
-static inline void get_rtc_time(struct rtc_time *time)
+static inline unsigned int get_rtc_time(struct rtc_time *time)
 {
 	/*
 	 * Only the values that we read from the RTC are set. We leave
@@ -38,6 +37,7 @@
 	 * by the RTC when initially set to a non-zero value.
 	 */
 	mach_hwclk(0, time);
+	return RTC_24H;
 }
 
 static inline int set_rtc_time(struct rtc_time *time)

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds



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On Sunday 12 January 2003 12:33, Geert Uytterhoeven wrote:
> I made some more changes afterwards:
>   - Add forward declaration for gen_rtc_interrupt()

This one should be moved inside the #ifdef CONFIG_GEN_RTC_X section to
avoid "genrtc.c:69: warning: `gen_rtc_interrupt' declared `static' but never defined"
warnings. Please see attached patch.

Or, you could just move the declaration of gen_rtc_interrupt() above the one
from genrtc_troutine(), in which case we wouldn't need the forward declaration at all.

> BTW, perhaps we should move the global RTC_* definitions in <asm/rtc.h> to
> <linux/genrtc.h>, or merge them with the ones in <linux/mc146818rtc.h> and
> move them to <linux/rtc.h>?

IMHO leaving them architecture specific in <asm/rtc.h> seems best to me, and it 
leaves the most possibilities to make them later more dependend on the hardware.

Helge


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--- ./genrtc.c.geert	Sun Jan 12 13:16:40 2003
+++ ./genrtc.c	Sun Jan 12 13:15:18 2003
@@ -66,9 +66,6 @@
 
 static DECLARE_WAIT_QUEUE_HEAD(gen_rtc_wait);
 
-static void gen_rtc_interrupt(unsigned long arg);
-

From - Thu Nov 08 21:26:16 2018
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Peter Lavender said:
> Thanks... this outlines what to do with a custom kernel.. I was
> thinking there might be a debian way... like with kernel-packages (I
> just reading up about it now for my i386 based system).

You can build your new kernel the Debian way with make-kpkg - the
kernel-package system is available for the hppa architecture.  I don't
know if it works yet in all of Debian's architectures (ie knows how to
configure all the boot loaders) but I think it knows about PALO so hppa
should be fine.

> The kernel on the 715/64 is from last year sometime ago... I can get
> the kernel version with uname becuase it seg faults.

You might be able to find out with 'file /vmlinux' ... or 'dmesg|head'
or 'head /var/log/dmesg' ...

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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Hi Thibaut

Thibaut VARENE wrote:
> On Fri, 10 Jan 2003 23:13:13 +0100
> "Thibaut VARENE" <varenet@esiee.fr> wrote:
> 
> I hate to reply to myself but I said crap in my previous mail.
> All apologies:
> 
>>FWIW, the default option (used by most people) is data=journal, and is not affected by that bug. We've been using 2.4.20 with ext3 for weeks pretty safely here.
> 
> it was: "the default option is data=ordered" of course, which is safe.
> 
I just to ask you additional help: I do not recover the method to get 
the actual setup of my fs ext3 (i do severall test but a time ago and do 
not remember in which state I let it: well operational but what more??)

Thanks,
	Joel




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Hi all,
I'm the Debian package maintainer for Squid (HTTP Proxy). I received the
forwarded bug report describing issues in seteuid() on palinux. While
using seteuid(), forked processes terminate with SEGV.

Is it a known problem?

Thanks.

L

Please CC: me, I'm not subscribed to this list.

-----Forwarded Message-----
> This small mail to mentionned that I reach to make squid operational on
> a linux-2.4.20-pa17 thanks to the following tips:
>=20
> in debian rules replace statement
>     ac_cv_func_setresuid=3Dno \
> by
>     ac_cv_func_setresuid=3Dyes \
>=20
> so that function leave_suid() [into src/tools.c] will use setresuid() in
> place of seteuid() before launch fork().
>=20
> Is it a know problem on palinux?
>=20
> Greetings,
>     Joel
>=20
> PS: Luigi, I also test it on 2.5.1 and it works also for parisc linux (te=
sting
> config). HTH

--=20
 Luigi Gangitano -- <luigi@debian.org> -- <gangitano@lugroma3.org>
 GPG: 1024D/924C0C26: 12F8 9C03 89D3 DB4A 9972  C24A F19B A618 924C 0C26

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From - Thu Nov 08 21:26:16 2018
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On Sun, 12 Jan 2003 15:25:05 +0000
"Joel Soete" <joel.soete@freebel.net> wrote:

> Hi Thibaut
> 
> Thibaut VARENE wrote:
> > On Fri, 10 Jan 2003 23:13:13 +0100
> > "Thibaut VARENE" <varenet@esiee.fr> wrote:
> > 
> > I hate to reply to myself but I said crap in my previous mail.
> > All apologies:
> > 
> >>FWIW, the default option (used by most people) is data=journal, and is not affected by that bug. We've been using 2.4.20 with ext3 for weeks pretty safely here.
> > 
> > it was: "the default option is data=ordered" of course, which is safe.
> > 
> I just to ask you additional help: I do not recover the method to get 
> the actual setup of my fs ext3 (i do severall test but a time ago and do
> not remember in which state I let it: well operational but what more??)
To get the actual configuration of a ext[23] fs, you can use 'tune2fs -l <device>'. To get the current state of data mode of an ext3 fs, look at dmesg. I don't know another way to get that info.
The data mode is decided at mount time, with 'mount -o data=xxx <device>'.

FWIW, I remember having found all that info in man tune2fs, man mount and man mke2fs.

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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On Sun, Jan 12, 2003 at 01:35:33PM +0100, Helge Deller wrote:

> > BTW, perhaps we should move the global RTC_* definitions in <asm/rtc.h> to
> > <linux/genrtc.h>, or merge them with the ones in <linux/mc146818rtc.h> and
> > move them to <linux/rtc.h>?
> 
> IMHO leaving them architecture specific in <asm/rtc.h> seems best to me, and it 
> leaves the most possibilities to make them later more dependend on the hardware.

in genrtc the RTC_* defs should be used only for interface definition,
unlike rtc.c where they are 1:1 with some obscure bits in the rtc chip
and also happen to be the interface..
It would make sense to merge them into <linux/rtc.h>, whether it is 
a good idea to do it in 2.4 is another question.
Stuff that is really hw dependent should use different naming (and stay
in asm/rtc.h of course). 

Richard



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Grant Grundler said:
> On Tue, Jan 07, 2003 at 11:49:49PM +0100, b.gunreben wrote:
> > If someone knows who is maintaining the XFree86 package of debian,
> 
> I recently asked the same question:
> 	apt-cache show xfree86-common
> ...
> Maintainer: Branden Robinson <branden@debian.org>
> ...
> 
> grant

The appropriate place for discussion of the Debian XFree86 packages is
probably the debian-x@lists.debian.org mailing list[1], home of The X
Strike Force[2].  =)

Andrew.

[1]  http://lists.debian.org/debian-x/
[2]  http://people.debian.org/~branden/xsf/xsf.html

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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Subject: Re: [parisc-linux] 2.5.56-pa0 64bit successful boot
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On Sun, Jan 12, 2003 at 02:10:41AM +0100, Thibaut VARENE wrote:
> FWIW, SMP kernel with the exact same configuration died just at:
> POSIX conformance testing by UNIFIX

I looked at the dmesg you had attached. Please don't compress
them in the future - defeats archive searches later.

The dmesg output reminded me the init sequence has substantially changed.
I'd be very susicious that additional CPUs are brought "online" later than
before.  I would guess that arch/parisc/kernel/smp.c and processor.c
needs to be changed to match. Can you retry CONFIG_SMP with
EARLY_BOOTUP_DEBUG enabled in arch/parisc/kernel/pdc_cons.c?

Oh, and also set kDEBUG in arch/parisc/kernel/smp.c to 100.

thanks,
grant


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On Sun, Jan 12, 2003 at 04:49:29PM +0100, Luigi Gangitano wrote:
> I'm the Debian package maintainer for Squid (HTTP Proxy). I received the
> forwarded bug report describing issues in seteuid() on palinux. While
> using seteuid(), forked processes terminate with SEGV.
> 
> Is it a known problem?

I wonder how it can be a problem at all.  The kernel implements only
sys_setresuid() and i would imagine that glibc implements both
seteuid() and setresuid() in terms of this system call.

Perhaps someone who's willing to touch glibc would care to comment?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> I wonder how it can be a problem at all.  The kernel implements only
> sys_setresuid() and i would imagine that glibc implements both
> seteuid() and setresuid() in terms of this system call.
> 
> Perhaps someone who's willing to touch glibc would care to comment?

seteuid() works fine in simple tests. i don't think it's seteuid...
something else is broken. can someone provide a simple test case for the
segfault?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Well, you were right about it taking a while to boot, but it still
bombed on me... see below. Is there a way I can boot my previous kernel
up again? 

Firmware Version  2.7

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------
------
    (c) Copyright 1995-1998, Hewlett-Packard Company, All rights
reserved
 
------------------------------------------------------------------------
------

   Processor   Speed            State           Coprocessor State  I/D
Cache 
   ---------  --------   ---------------------  -----------------
-------------
       0      180 MHz    Active                 Functional         1
MB/1 MB

   Central Bus Speed (in MHz) :        120

   Available memory (bytes)    : 805306368
   Good memory required (bytes):          0 (Not Set by OS)
   Primary boot path:    FWSCSI.5.0
   Alternate boot path:  SESCSI.6.0
   Console path:         GRAPHICS(3)
   Keyboard path:        PS2
 CPU 0
 WARNING:  Self tests have been disabled as a result of FASTBOOT
          being enabled.  To enable self tests, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.
WARNING:  Memory has been initialized, but not tested as a result of
          FASTBOOT being enabled.  To test memory, use the FASTBOOT
          command in the CONFIGURATION menu and reboot the system.

 Processor is booting from first available device.

 To discontinue, press any key within 10 seconds.

 10 seconds expired.
 Proceeding...
Searching for device(s) with bootable media...
This may take several minutes.

To discontinue search, press any key (termination may not be immediate).

 Attempting to boot Primary Path...

 BOOTABLE DEVICE FOUND:
    Path Number        Device Path              Device Type and
Utilities
   -----------        -----------------        -------------------------
   P0                 FWSCSI.5.0               SEAGATE ST34371W        
                                                IPL
Booting... 
Boot IO Dependent Code (IODC) revision 150


HARD Booted.
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002

 Partition Start(MB) End(MB) Id Type
  1               1      16   f0 Palo
  2            3141    4094   82 swap
  5              17    3140   83 ext2
 PALO(F0) partition contains:
     0/vmlinux32 3687647 bytes @ 0x48000

 Information: No console specified on kernel command line. This is
normal.
 PALO will choose the console currently used by firmware (serial).
 Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0
TERM=vt102 palo_kernel=5/boot/vmlinux'
 Selected kernel: /boot/vmlinux from partition 5
 ELF32 executable
 Entry 00100000 first 00100000 n 5
 Segment 0 load 00100000 size 2503500 mediaptr 0x1000
 Segment 1 load 00364000 size 674056 mediaptr 0x265000
 Segment 2 load 0040c000 size 286720 mediaptr 0x30a000
 Segment 3 load 00458000 size 32768 mediaptr 0x350000
 Segment 4 load 0048efb8 size 110864 mediaptr 0x358fb8
 Branching to kernel entry point 0x00100000.  If this is the last
 message you see, you may need to switch your console.  This is
 a common symptom -- search the FAQ and mailing list at parisc-linux.org

 Linux version 2.4.19-32-smp (root@j5k) (gcc version 3.0.4) #1 SMP Fri
Nov 22 23:11:10 MST 2002
 FP[0] enabled: Rev 0 Model 14
 The 32-bit Kernel has started...
 Determining PDC firmware type: System Map.
 model 000059c0 00000481 00000000 00000002 77d14d81 100000f0 00000008
000000b2 000000b2
 vers  00000205
 CPUID vers 14 rev 9 (0x000001c9)
 model 9000/780/C180
 Total Memory: 768 Mb
 pagetable_init
 On node 0 totalpages: 196608
 zone(0): 196608 pages.
 zone(1): 0 pages.
 zone(2): 0 pages.
 LED display at f0190001 registered
 Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
palo_kernel=5/boot/vmlinux
 Console: colour dummy device 160x64
 Calibrating delay loop... 358.80 BogoMIPS
 Memory: 773296k available
 Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
 Inode cache hash table entries: 65536 (order: 7, 524288 bytes)
 Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
 Buffer-cache hash table entries: 65536 (order: 6, 262144 bytes)
 Page-cache hash table entries: 262144 (order: 8, 1048576 bytes)
 Searching for devices...
 Found devices:
 1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf,
0xb
 2. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions 0x680, 0x1, 0xa
 3. Dino PS/2 Port (10) at 0xf2001000 [8/1], versions 0x7, 0x0, 0x96
 4. Raven Backplane RS-232 (10) at 0xf2003000 [8/3], versions 0x17, 0x0,
0x8c
 5. Raven U/L2 Core FW-SCSI (4) at 0xf200c000 [8/12], versions 0x3b,
0x0, 0x89
 6. Raven U/L2 Core BA (11) at 0xffd00000 [8/16], versions 0x3b, 0x0,
0x81,  additional addresses: 0xffd0c000 0xffc00000 
 7. UL 350 Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x2e,
0x0, 0x74,  additional addresses: 0xffd01000 0xffd03000 
 8. Raven U/L2 Core Audio (10) at 0xffd04000 [8/16/1], versions 0x3b,
0x4, 0x7b
 9. Raven U/L2 Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x3b,
0x0, 0x8c
 10. Raven U/L2 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x3b,
0x0, 0x82
 11. Raven U/L2 Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions
0x3b, 0x0, 0x8a
 12. Raven U/L2 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions
0x3b, 0x0, 0x84
 13. Raven U/L2 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions
0x3b, 0x0, 0x84
 14. Raven Backplane Wax BA (11) at 0xffe00000 [8/20], versions 0x17,
0x0, 0x8e
 15. Raven Backplane Wax HIL (10) at 0xffe01000 [8/20/1], versions 0x17,
0x0, 0x73
 16. Raven Backplane RS-232 (10) at 0xffe02000 [8/20/2], versions 0x17,
0x0, 0x8c
 17. Raven Backplane Wax EISA BA (11) at 0xfc000000 [8/20/5], versions
0x17, 0x0, 0x90,  additional addresses: 0xffc88000 0xfc00000b 
 18. Gecko GSC Core Graphics (10) at 0xfa000000 [8/24], versions 0x16,
0x0, 0x85,  additional addresses: 0xf0084000 
 19. U2-IOA BC GSC+ Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1,
0xc
 20. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf,
0xb
 21. Coral SGC Graphics (10) at 0xf8000000 [10/8], versions 0x4, 0x0,
0x77
 22. U2-IOA BC GSC+ Port (7) at 0xf103f000 [10/63], versions 0x501, 0x1,
0xc
 23. Raven U 180 (9000/780/C180) (0) at 0xfffa0000 [32], versions 0x59c,
0x0, 0x4
 24. Memory (1) at 0xfffb1000 [49], versions 0x72, 0x0, 0x9
 CPU(s): 1 x PA8000 (PCX-U) at 180.000000 MHz
 Found U2 at 0xfff88000
 Found U2 at 0xfff8a000
 Lasi version 0 at 0xffd00000 found.
 Wax at 0xffe00000 found.
 Wax EISA Adapter found at 0xfc000000
 EISA EEPROM at 0xffc88000
 Enumerating EISA bus
 EISA slot 1 id mis-match: got INP0500 expected ___FFFF 
 Dino version 2.1 found at 0xf2000000
 The GSCtoPCI (Dino hrev 1) bus converter found may exhibit
 data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.
 Systems shipped after Aug 20, 1997 will not exhibit this problem.
 Models affected: C180, C160, C160L, B160L, and B132L workstations.

 Dino: No PCI devices enabled.
 POSIX conformance testing by UNIFIX
 SMP: Bootstrap processor only.
 SMP: Total 1 of 1 processors activated (358.81 BogoMIPS noticed).
 Waiting on wait_init_idle (map = 0x0)
 All processors have done init_idle
 Linux NET4.0 for Linux 2.4
 Based upon Swansea University Computer Society NET3.039
 Initializing RT netlink socket
 Soft power switch enabled, polling @ 0xf0140000.
 Starting kswapd
 Journalled Block Device driver loaded
 Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
 parport_init_chip: initialize bidirectional-mode.
 parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
 STI GSC/PCI graphics driver version 0.9
 STI word mode ROM at f0084000, hpa at fa000000
 STI id 2d08c0a7-9a02587, conforms to spec rev. 8.07
 STI device: INTERNAL_EG_1280
 STI byte mode ROM at f8000000, hpa at f8000000
 STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
 STI device: HPA4071B_LZ
 Console: switching to colour frame buffer device 160x64
 fb0: stifb 1280x1024-8 frame buffer device, id: 2d08c0a7, mmio:
0xfa100000
 fb1: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio:
0xf8100000
 pty: 256 Unix98 ptys configured
 Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
 ttyS00 at iomem 0xffd05800 (irq = 90) is a 16550A
 ttyS01 at iomem 0xffe02800 (irq = 121) is a 16550A
 PS/2 keyboard port at 0xffd08000 (irq 69) found, no device attached.
 PS/2 psaux port at 0xffd08100 (irq 69) found, no device attached.
 lp0: using parport0 (interrupt-driven).
 Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
 Uniform Multi-Platform E-IDE driver Revision: 6.31
 ide: Assuming 50MHz system bus speed for PIO modes; override with
idebus=xx
 RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
 loop: loaded (max 8 devices)
 Found i82596 at 0xffd07000, IRQ 87
 eth0: 82596 at 0xffd07000, 00 60 B0 18 9B B9 IRQ 87.
 82596.c $Revision: 1.29 $
 SCSI subsystem driver Revision: 1.00
 zalon_scsi_callback: Zalon vers field is 0x1, IRQ 36
 ncr53c8xx: 53c720 detected
 ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
 scsi0 : ncr53c8xx-3.4.3b-20010512
   Vendor: SEAGATE   Model: ST34371W          Rev: HP03
   Type:   Direct-Access                      ANSI SCSI revision: 02
   Vendor: SEAGATE   Model: ST32171W          Rev: HP03
   Type:   Direct-Access                      ANSI SCSI revision: 02
 53c700: Version 2.7 By James.Bottomley@HansenPartnership.com
 scsi1: 53c710 rev 2 
 scsi1 : LASI SCSI 53c700
 scsi1: (1:0) Synchronous at offset 8, period 100ns
   Vendor: SONY      Model: SDT-7000          Rev: 0150
   Type:   Sequential-Access                  ANSI SCSI revision: 02
 st: Version 20020205, bufsize 32768, wrt 30720, max init. bufs 4, s/g
segs 16
 Attached scsi tape st0 at scsi1, channel 0, id 1, lun 0
 Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
 Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
 ncr53c720-0-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
 SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
 Partition check:
  sda: sda1 sda2 sda3 < sda5 >
 ncr53c720-0-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
 SCSI device sdb: 4194685 512-byte hdwr sectors (2148 MB)
  sdb: sdb1
 Lasi Harmony Audio driver V0.9a, h/w id 20, rev. 2 at 0xffd04000, IRQ
82
 usb.c: registered new driver usbdevfs
 usb.c: registered new driver hub
 usb.c: registered new driver hid
 hid-core.c: v1.8.1 Andreas Gal, Vojtech Pavlik <vojtech@suse.cz>
 hid-core.c: USB HID support drivers
 mice: PS/2 mouse device common for all mice
 HP SDC: HP SDC at 0xffe01000, IRQ 126 (NMI IRQ 125)
 HP SDC: New style SDC
 HP SDC: Revision: 1820-4784
 HP SDC: TI SN76494 beeper present
 HP SDC: OKI MSM-58321 BBRTC present
 HP SDC: Spunking the self test register to force PUP on next firmware
reset.
 HP SDC MLC: Registering the System Domain Controller's HIL MLC.
 md: line








-Marc 


-----Original Message-----
From: willy@www.linux.org.uk [mailto:willy@www.linux.org.uk] On Behalf
Of Matthew Wilcox
Sent: Saturday, January 11, 2003 3:37 PM
To: Marc Eisenbarth
Cc: parisc-linux@parisc-linux.org
Subject: Re: [parisc-linux] Cannot boot after installing kernel!

On Sat, Jan 11, 2003 at 03:28:21PM -0600, Marc Eisenbarth wrote:
> Well, things were going great on my C180 until just a few minutes ago
> when I did:

i'd think this is not actually hung, it's just taking a very long time
to
boot.  can you leave it for 10 minutes or so and see if it comes to
life?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead
bodies.
Do you think I want to have an academic debate on this subject?" --
Robert Fisk



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Hi Randolph,

Being the author of bug report (and some other request on this ml about
subject), unfortunately I do not have test case. But what I can do is to
explain all what I did. I just grab squid-2.4.7-1 (hope still exist) and
rebuild as it is (check in rules that ac_cv_func_setresuid=3Dno).

Installed it and disabled the startup script (in case of reboot, it risks=

to make boot very slow).

I already noticed that the install procedure failled to create the spool
dir; dmesg would have to confirm you that squid do a segv. [ and there wa=
s
no squid process ]

What failled? In fact, the install script launched 'squid -z'.
It was interesting to launch it manually; the reason of the SEGV was more=

complete: fork failled because not enough memory available??

Well fork() failed... Searching in sources (MANY THANKS to RMS for FSF sp=
irit)
I find the place where fork() is used and what happened just before: acco=
rding
to configure param, it do first a setgroups(), setgid() then (in this cas=
e)
a seteuid() (function leave_suid() in src/tools.c).

So the problem seems to came from a kind of su. And I re-read Bach UNIX
bible to remember that one of the first think that do a su is to verify
that user memory is enough. In this case it considered that it was not th=
e
case?

So I tried to check if a real su presents the same problem. I let first
read access to the world for /etc/squid.conf (just for the test) and as
in the startup script 'ulimit -n 5120' (for example) then 'su - proxy'.

'ulimit -a' seems Ok.
Now, always as proxy user, relaunch 'squid -z' and ... it works.

I could be now quiet sure that the problem came from the setgroups(), set=
gid(),
seteuid(), fork() sequence used to switch user. Agree?

I first checked the value of the paramters transmitted to the seteuid()
which seem ok.

As I saw that the developper of squid foreseen other procedure to su, I
did so first investigate to use setreuid() (which seems to me also more
secure but I should be wrong?). As it was available, I test it and solved=

all the squid problem encounter since the begining: the creation of the
spool dir was now ok and the server worked fine. That is this final concl=
usion
that I transmitted as bug report near squid maintainer.

On this mailing list my question (<http://lists.parisc-linux.org/pipermai=
l/parisc-linux/2003-January/018801.html>)
was a bit wilder (I thought but wrongly):
is it a seteuid() [glic ?] or a fork() [kernel ?] problem?

Well that is only a summary a many other investigation and I hope this he=
lp
but if something is not clear or some other test would help you do not he=
sitate
to let me know,

Cheers,
    Joel


->> I wonder how it can be a problem at all.  The kernel ilements only
>> sys_setresuid() and i would imagine that glibc implements both
>> seteuid() and setresuid() in terms of this system call.
>>
>> Perhaps someone who's willing to touch glibc would care to comment?
>
>seteuid() works fine in simple tests. i don't think it's seteuid...
>something else is broken. can someone provide a simple test case for the=

>segfault?
>
>randolph
>--
>Randolph Chung
>Debian GNU/Linux Developer, hppa/ia64 ports
>http://www.tausq.org/
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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>> I think that you probably should always use a 3-bit extract.  If the
>> value is greater than 3 on a PA 1.1 FPU, then the operation is undefin=
ed.
>> 4 is also undefined for PA 2.0.
>
>I guess that'll work, altho there are also some paths that are pcx-s and=

>pcx-t specific, so we probably still need to determine what processor we=

>are running on
>
>> The above assumes that the kernel doesn't provide PA 2.0 emulation
>> on PA 1.1 machines.
>
>yup, that should be a reasonable assumption.
>
>anyway, here's what i'm considering to commit to our kernel tree. it 
>has been tested to work with the fcnv code posted earlier. haven't 
>tested the other cases yet. it's very much a hack. comments?
>
Hi all,

I just update my kernel to -pa21 release do a 'make distclean' recover my=

previous .config then do 'make menuconfig' and finaly 'make dep; make vml=
inux'.

And it failled with following message:
`gcc -print-libgcc-file-name` /usr/src/linux-2.4.20-pa21/arch/parisc/lib/=
lib.a
/usr/src/linux-2.4.20-pa21/lib/lib.a  \
        --end-group \
        -o vmlinux
arch/parisc/math-emu/math.o(.text.handle_fpe+0x80): In function `handle_f=
pe':
: undefined reference to `printbinary'
arch/parisc/math-emu/math.o(.text.handle_fpe+0xcc): In function `handle_f=
pe':
: undefined reference to `printbinary'
make: *** [vmlinux] Error 1

What do I wrong?

Thanks in advance,
    Joel

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>-- Original Message --
>From: "Marc Eisenbarth" <marc@centraltx.com>
>To: "'Matthew Wilcox'" <willy@debian.org>
>Cc: <parisc-linux@parisc-linux.org>
>Subject: RE: [parisc-linux] Cannot boot after installing kernel!
>Date: Sun, 12 Jan 2003 21:59:23 -0600
>
>
>Well, you were right about it taking a while to boot, but it still
>bombed on me... see below. Is there a way I can boot my previous kernel
>up again? 
>
You can always from your install support (cd or netinstall lifimage) whic=
h,
in the install menu (near the end), let you access to a shell.
You can create now a temp dir as /mnt/MYBOOT and mount your sd boot disk.=

If your old kernel still stand in /mnt/MYBOOT[/boot], note its name and
put it in the boot parameter (interupt the boot and answer y to interact
with ipl then 0 in palo bootprompt). After the boot completion you would
certainly have to reinstall old kernel package.

If your old kernel is not any more their, try to make the pkg available
on any ftp server, setup your network interface thanks to the above menti=
oned
"install menu" to access your ftp server. Mount also your boot disk in th=
e
/mnt/MYBOOT copy the kernel pkg into /mnt/MYBOOT/var/tmp (ie somewhere on=

your sd). Now 'chroot /mnt/MYBOOT' and dpkg -i /var/tmp/kernel-....deb.
Do not forget to exit chroot and umount /mnt/MYBOOT to be sure that fs we=
re
sync before reboot.

HTH,
    Joel


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> I just update my kernel to -pa21 release do a 'make distclean' recover my
> previous .config then do 'make menuconfig' and finaly 'make dep; make vmlinux'.

sorry, my bad. fixed now.

randolph


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>> I just update my kernel to -pa21 release do a 'make distclean' recover=

>my
>> previous .config then do 'make menuconfig' and finaly 'make dep; make
vmlinux'.
>
>sorry, my bad. fixed now.
>
Hmm never the less printbinary() is well defined into arch/parisc/kernel/=
traps.c
so I do not understand why ld couldn't link it when building kernel?

Thanks again,
    Joel


*********************************************
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> Hmm never the less printbinary() is well defined into arch/parisc/kernel/traps.c
> so I do not understand why ld couldn't link it when building kernel?

because it's static 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Sat, 4 Jan 2003, Matthew Wilcox wrote:

> On Thu, Jan 02, 2003 at 01:11:47AM +0100, Helge Deller wrote:
> > kernel module support for the 2.5 kernel on hppa seems broken due to some missing
> > support for this architecture in the new modutils and module-init-tools debian packages.
> >
> > Maybe someone with somewhat more expirience than me with the ELF file format and
> > runtime symbol relocation functions could look into this ?
>
> rusty's promised to do it when he gets access to a machine...

any outcomes or is the account a prob ?

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/



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>> I do notice that unstable debian for i386 switch (or will very soon)
gcc-default
>> to gcc-3.2. Is it also true for hppa? (am I anxious about compiling ne=
w
>> kernel with this because of pb encounter with network connection)
>
>yes:
>
>tausq@auric:~$ madison gcc|grep unstable
>       gcc |    2:3.1-1 |      unstable | hurd-i386
>       gcc |  3:3.2.2-0 |      unstable | alpha, arm, hppa, i386, ia64,
m68k,
>mips, mipsel, powerpc, s390, sparc
>

Well as mentionned in another mail, I just compile the 2.4.20-pa21 with
this new release and it always compile well, always boot well but also as=

soon as a network connection is tempted the system still crash.

And ? it just printout Stack Dump: (thousand time) but nothing more??
Do I do again something wrong?

never the less, Here I got the pim info:
PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp =3D 
  Mon Jan  13 17:32:31 GMT 2003    (20:03:01:13:17:32:31)

HPMC Chassis Codes =3D 2cbf0  2500b  2cbfb  

General Registers 0 - 31
00-03   0000000000000000  0000000010340010  0000000010110850  00000000000=
000ff
04-07   0000000000000004  00000000000f4023  00000000103f7244  00000000103=
fa5c3
08-11   0000000000000060  0000000000000010  000000000000000e  00000000000=
00001
12-15   0000000010408010  000000000000000c  0000000000000005  00000000000=
69e0c
16-19   000000001ffb5cc0  0000000000069e0c  0000000000000004  fffffffffee=
00000
20-23   000000000000000e  00000000000003fd  0000000010111b84  00000000103=
43810
24-27   00000000000003fd  fffffffffee003fd  00000000100ba160  00000000103=
30010
28-31   0000000000000000  000000000001338a  000000001ffb6440  00000000101=
10850

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  00000000000=
00000
04-07   0000000000000000  0000000000000000  0000000000000000  00000000000=
00000
08-11   00000000000005be  0000000000000000  00000000000000c0  00000000000=
0001a
12-15   0000000000000000  0000000000000000  0000000000108000  00000000000=
00000
16-19   000000311b8e25f8  0000000000000000  0000000010111b94  000000000f2=
0001c
20-23   00000000a607fffb  c0000000802003fd  000000ff0004fe0c  00000000c20=
00000
24-27   000000000034c000  000000000dfbc000  0000000000044021  00000000f04=
12000
28-31   0000000055555555  0000000055555555  000000001f93c000  00000000103=
e8000
Space Registers 0 - 7

00-03   00000000          000002df          00000000          000002df
04-07   00000000          00000000          00000000          00000000

IIA Space                    =3D 0x0000000000000000
IIA Offset                   =3D 0x0000000010111b98
Check Type                   =3D 0x20000000
CPU State                    =3D 0x9e000004
Cache Check                  =3D 0x00000000
TLB Check                    =3D 0x00000000
Bus Check                    =3D 0x0030103b
Assists Check                =3D 0x00000000
Assist State                 =3D 0x00000000
Path Info                    =3D 0x00000000
System Responder Address     =3D 0x000000fffee003fd
System Requestor Address     =3D 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000  00000000000=
00000
04-07   00000001103e2000  f00000001014ec28  1032100000000000  00000000000=
00000
08-11   1034b02000000002  0000000200000002  0000000010343810  103e3810103=
40810
12-15   103e40001fffb000  0000000200000002  00000000100b0000  1034b5c0103=
e1e5c
16-19   103438100000000b  103f6e4b10343b48  0000000f103f6810  f0000000000=
0000f
20-23   00000001103e1000  f00000001013e3e4  cccccccda3d70c6e  00000000ccc=
ccccd
24-27   000007b11ff580a0  000099990000000a  0000000000000004  10330010102=
f5d54
28-31   1fffb000102f5800  000080011013ff24  102f580000008001  1fffb005000=
00005


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                =3D 0xcb81041008000000
Available Memory             =3D 0x0000000010000000
CPU Diagnose Register 2      =3D 0x0301000000000004
CPU Status Register 0        =3D 0x2420c20000000000
CPU Status Register 1        =3D 0x8002000000000000
SADD LOG                     =3D 0x10d8bb0180311000
Read Short LOG               =3D 0xc18040fffee003fd
ERROR_STATUS                 =3D 0x0000000000100010
MEM_ADDR                     =3D 0x000001ff3fffffff
MEM_SYND                     =3D 0x0000000000000000
MEM_ADDR_CORR                =3D 0x000001ff3fffffff
MEM_SYND_CORR                =3D 0x0000000000000000
RUN_DATA_HIGH                =3D 0xc1bff0fffed08040
RUN_DATA_LOW                 =3D 0xc1bff0fffed08040
RUN_CTRL                     =3D 0x0000021c00001418
RUN_ADDR                     =3D 0xc1bff0fffed08040
System Responder Path        =3D 0x00ffff0a000e0101


HPMC PIM Analysis Information:

Timestamp =3D 
  Mon Jan  13 17:32:31 GMT 2003    (20:03:01:13:17:32:31)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 byt=
es:

A Data I/O Fetch Timeout occurred while CPU 0 was
requesting information from a device at the path 10/0/14/1/1 (built-in PC=
I
device).


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not
log
any additional information about the HPMC.

<Press any key to continue (q to quit)> 

-----------------  Processor 0 LPMC Information ------------------

Check Type                   =3D 0x00000000
I/D Cache Parity Info        =3D 0x00000000
Cache Check                  =3D 0x00000000
TLB Check                    =3D 0x00000000
Bus Check                    =3D 0x00000000
Assists Check                =3D 0x00000000
Assist State                 =3D 0x00000000
Path Info                    =3D 0x00000000
System Responder Address     =3D 0x0000000000000000
System Requestor Address     =3D 0x0000000000000000


 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc2a9   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc009   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    ----------   0x4e0cc009   ------------------
   5    ----------   0x5e0cc009   ------------------
   6    ----------   0x6e0cc009   ------------------
   7    ----------   0x7e0cc009   ------------------

And then dump_analyser.sh got me:

IAOQ =3D 

Func: , Off: fffdf5ee, Addr: 0x0
objdump: --start-address: bad number: 0x

GR0 =3D 0000000000000000
0000000000000000
00000000
0000001f00000000

GR1 =3D 0000000010340010
0000000000000000
000002df
0000000000000000
Func: processor_tbl, Off: c, Addr: 0x10340010

GR2 =3D 0000000010110850
0000000000000000
00000000
0000000000000000
Func: inb, Off: 7c, Addr: 0x10110850
101107f4:	87 20 20 b8 	cmpib,=3D 0,r25,10110858 <inb+0x84>
10110850:	c8 7c 9f a5 	movb,tr ret0,r3,10110828 <inb+0x54>
10110854:	08 03 02 5c 	copy r3,ret0
10110858:	e8 57 0f 45 	b,l 10100000 <_text>,rp
1011085c:	34 42 3f 91 	ldo -38(rp),rp

GR3 =3D 00000000000000ff
0000000000000000
000002df
0000000000000000

GR4 =3D 0000000000000004
0000000000000000
00000000
00000001103e2000

GR5 =3D 00000000000f4023
0000000000000000
00000000
f00000001014ec28

GR6 =3D 00000000103f7244
0000000000000000
00000000
1032100000000000
Func: log_buf, Off: 0, Addr: 0x103f7244

GR7 =3D 00000000103fa5c3
0000000000000000
00000000
0000000000000000
Func: log_buf, Off: 337f, Addr: 0x103fa5c3

GR8 =3D 0000000000000060
00000000000005be
1034b02000000002

GR9 =3D 0000000000000010
0000000000000000
0000000200000002

GR10 =3D 000000000000000e
00000000000000c0
0000000010343810

GR11 =3D 0000000000000001
000000000000001a
103e381010340810

GR12 =3D 0000000010408010
0000000000000000
103e40001fffb000
Func: IRQ_timeout, Off: 2f4, Addr: 0x10408010

GR13 =3D 000000000000000c
0000000000000000
0000000200000002

GR14 =3D 0000000000000005
0000000000108000
00000000100b0000

GR15 =3D 0000000000069e0c
0000000000000000
1034b5c0103e1e5c

GR16 =3D 000000001ffb5cc0
000000311b8e25f8
103438100000000b

GR17 =3D 0000000000069e0c
0000000000000000
103f6e4b10343b48

GR18 =3D 0000000000000004
0000000010111b94
0000000f103f6810

GR19 =3D fffffffffee00000
000000000f20001c
f00000000000000f

GR20 =3D 000000000000000e
00000000a607fffb
00000001103e1000

GR21 =3D 00000000000003fd
c0000000802003fd
f00000001013e3e4

GR22 =3D 0000000010111b84
000000ff0004fe0c
cccccccda3d70c6e
Func: lba_astro_in8, Off: 0, Addr: 0x10111b84
10111b80:	0e 80 12 90 	stw r0,8(sr0,r20)
10111b84 <lba_astro_in8>:
10111b84:	22 60 0f dd 	ldil -1200000,r19
10111b88:	d3 39 1b f0 	extrw,u r25,31,16,r25
10111b8c:	0a 79 0a 19 	add,l r25,r19,r25

GR23 =3D 0000000010343810
00000000c2000000
00000000cccccccd
Func: pidhash, Off: f60, Addr: 0x10343810

GR24 =3D 00000000000003fd
000000000034c000
000007b11ff580a0

GR25 =3D fffffffffee003fd
000000000dfbc000
000099990000000a

GR26 =3D 00000000100ba160
0000000000044021
0000000000000004

GR27 =3D 0000000010330010
00000000f0412000
10330010102f5d54
Func: $global$, Off: 0, Addr: 0x10330010

GR28 =3D 0000000000000000
0000000055555555
1fffb000102f5800

GR29 =3D 000000000001338a
0000000055555555
000080011013ff24

GR30 =3D 000000001ffb6440
000000001f93c000
102f580000008001

GR31 =3D 0000000010110850
00000000103e8000
1fffb00500000005
Func: inb, Off: 7c, Addr: 0x10110850
101107f4:	87 20 20 b8 	cmpib,=3D 0,r25,10110858 <inb+0x84>
10110850:	c8 7c 9f a5 	movb,tr ret0,r3,10110828 <inb+0x54>
10110854:	08 03 02 5c 	copy r3,ret0
10110858:	e8 57 0f 45 	b,l 10100000 <_text>,rp
1011085c:	34 42 3f 91 	ldo -38(rp),rp

Done.


I do not know if it is relevant but HTH (me no :( )

Joel

PS: Tommorrow I will try either snapshot or gcc-3.0?

*********************************************
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On Mon, Jan 13, 2003 at 07:36:03PM +0100, jsoe0708@tiscali.be wrote:
> Well as mentionned in another mail, I just compile the 2.4.20-pa21 with
> this new release and it always compile well, always boot well but also as
> soon as a network connection is tempted the system still crash.
> 
> And ? it just printout Stack Dump: (thousand time) but nothing more??
> Do I do again something wrong?

probably not. the stack dump is something I sometimes comment out
since it interfers with the register dump (which is more interesting).


> never the less, Here I got the pim info:
> PROCESSOR PIM INFORMATION

> GR2 = 0000000010110850
> Func: inb, Off: 7c, Addr: 0x10110850

> I do not know if it is relevant but HTH (me no :( )

Knowing it's inb() helps a bit. But we really need to know
who called inb. Unless we get a nice stack unwind, we just
have to guess based on activity that caused the crash and
last dmesg output from the console.

Sounds like the networking card you are attempting to
use isn't enabled properly by the driver.
Can you remind me which type of machine this is running
on and which type of NIC you are using?

thanks,
grant


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>On Mon, Jan 13, 2003 at 07:36:03PM +0100, jsoe0708@tiscali.be wrote:
>> Well as mentionned in another mail, I just compile the 2.4.20-pa21 wit=
h
>> this new release and it always compile well, always boot well but also=

>as
>> soon as a network connection is tempted the system still crash.
>> 
>> And ? it just printout Stack Dump: (thousand time) but nothing more??
>> Do I do again something wrong?
>
>probably not. the stack dump is something I sometimes comment out
>since it interfers with the register dump (which is more interesting).
>
Allright...
>
>> never the less, Here I got the pim info:
>> PROCESSOR PIM INFORMATION
>
>> GR2 =3D 0000000010110850
>> Func: inb, Off: 7c, Addr: 0x10110850
>
>> I do not know if it is relevant but HTH (me no :( )
>
>Knowing it's inb() helps a bit. But we really need to know
>who called inb. Unless we get a nice stack unwind, we just
>have to guess based on activity that caused the crash and
>last dmesg output from the console.
>
>Sounds like the networking card you are attempting to
>use isn't enabled properly by the driver.
>Can you remind me which type of machine this is running
>on and which type of NIC you are using?
>
The system on which I test it is a b2k with
...
Searching for devices...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000 [10], versions 0x582, 0x0, 0xb=

2. Elroy PCI Bridge (13) at 0xfed30000 [10/0], versions 0x782, 0x0, 0xa
3. Elroy PCI Bridge (13) at 0xfed32000 [10/1], versions 0x782, 0x0, 0xa
4. Kazoo W+ (0) at 0xfffa0000 [32], versions 0x5d0, 0x0, 0x4
5. Memory (1) at 0xfed10200 [49], versions 0x9d, 0x0, 0x9
CPU(s): 1 x PA8600 (PCX-W+) at 400.000000 MHz
SBA found Astro 2.1 at 0xfed00000
lba version TR4.0 (0x5) found at 0xfed30000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
PCI: Ignoring BAR0-3 of IDE controller 00:0e.0
lba version TR4.0 (0x5) found at 0xfed32000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch enabled, polling @ 0xf0400804.
SuperIO: Found NS87560 Legacy I/O device at 00:0e.1 (IRQ 64) 
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
parport0: PC-style at 0x378, irq 101 [PCSPP(,...)]
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
STI GSC/PCI graphics driver version 0.9
STI PCI graphic ROM found at f4940000 (128 kB), fb at fb000000 (16 MB)
STI word mode ROM at f4940044, hpa at fb000000
STI id 35acda16-9a02587, conforms to spec rev. 8.0c
STI device: HPA4982A
stifb: Unsupported gfx card id 0x35acda16
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL=
_PCI
enabled
ttyS00 at port 0x03f8 (irq =3D 99) is a 16550A
ttyS01 at port 0x02f8 (irq =3D 100) is a 16550A
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre12 (Aug 9, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 65 at 0xf00, 00:30:D3:01:5A:3B, IRQ 66.
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) bloc=
k.
tulip_mii_recover: 100 ms
tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.
tulip1:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth1: Digital DS21143 Tulip rev 65 at 0x12100, 00:30:6E:06:23:D0, IRQ 130=
.
Uniform Multi-Platform E-IDE driver Revision: 7.00beta-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=3D=
xx
....

No chance, as you can see, the two interfaces are of the same time.
(I also have a b180 but the buildin NIC is also "Digital DS21143 Tulip re=
v
65" :( )

Thanks to your attention,
        Joel


*********************************************
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On Mon, Jan 13, 2003 at 12:38:26PM -0700, Grant Grundler wrote:
> On Mon, Jan 13, 2003 at 07:36:03PM +0100, jsoe0708@tiscali.be wrote:
> > Well as mentionned in another mail, I just compile the 2.4.20-pa21 with
> > this new release and it always compile well, always boot well but also as
> > soon as a network connection is tempted the system still crash.
> > 
> > And ? it just printout Stack Dump: (thousand time) but nothing more??
> > Do I do again something wrong?
> 
> probably not. the stack dump is something I sometimes comment out
> since it interfers with the register dump (which is more interesting).
> 
> 
> > never the less, Here I got the pim info:
> > PROCESSOR PIM INFORMATION
> 
> > GR2 = 0000000010110850
> > Func: inb, Off: 7c, Addr: 0x10110850
> 
> > I do not know if it is relevant but HTH (me no :( )
> 
> Knowing it's inb() helps a bit. But we really need to know
> who called inb. Unless we get a nice stack unwind, we just
> have to guess based on activity that caused the crash and
> last dmesg output from the console.
> 
> Sounds like the networking card you are attempting to
> use isn't enabled properly by the driver.
> Can you remind me which type of machine this is running
> on and which type of NIC you are using?

I doubt this is exactly the case. I have the same problem with my C110 in that
connecting to the box over ssh will kill it (with a gcc 3.2 compiled kernel) but
DECnet works fine with that kernel.

Oddly, DECnet does /not/ work with a gcc 3.0.4 compiled kernel (it doesn't crash,
just produces bogus packets), though ssh does - as we know.

patrick



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Subject: [parisc-linux] new gcc-snapshot problem [was: new gcc-default for hppa]
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>PS: Tommorrow I will try either snapshot or gcc-3.0?
>
I so try snapshot (named 20030105-1) and so set LD_LIBRARY_PATH and PATH
as documented but compiling the kernel 2.4.20 failled with:
gcc -D__KERNEL__ -I/usr/src/linux-2.4.20-pa21/include -Wall -Wstrict-prot=
otypes
-Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer
-D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-ca=
lls
-mdisable-fpregs -ffunction-sections -march=3D1.1 -mschedule=3D7100   -no=
stdinc
-I /usr/lib/gcc-snapshot/lib/gcc-lib/hppa-linux/3.3/include -DKBUILD_BASE=
NAME=3Dide_cd
 -c -o ide-cd.o ide-cd.c
In file included from /usr/src/linux-2.4.20-pa21/include/linux/ide.h:301,=

                 from ide-cd.c:309:
/usr/src/linux-2.4.20-pa21/include/asm/ide.h: In function `ide_fix_drivei=
d':
/usr/src/linux-2.4.20-pa21/include/asm/ide.h:150: warning: comparison bet=
ween
signed and unsigned
In file included from /usr/src/linux-2.4.20-pa21/include/linux/highmem.h:=
5,
                 from /usr/src/linux-2.4.20-pa21/include/linux/pagemap.h:=
16,
                 from /usr/src/linux-2.4.20-pa21/include/linux/locks.h:8,=

                 from /usr/src/linux-2.4.20-pa21/include/linux/blk.h:5,
                 from /usr/src/linux-2.4.20-pa21/include/linux/ide.h:771,=

                 from ide-cd.c:309:
/usr/src/linux-2.4.20-pa21/include/asm/pgalloc.h: In function `flush_cach=
e_range':
/usr/src/linux-2.4.20-pa21/include/asm/pgalloc.h:83: warning: comparison
between signed and unsigned
In file included from /usr/src/linux-2.4.20-pa21/include/linux/highmem.h:=
5,
                 from /usr/src/linux-2.4.20-pa21/include/linux/pagemap.h:=
16,
                 from /usr/src/linux-2.4.20-pa21/include/linux/locks.h:8,=

                 from /usr/src/linux-2.4.20-pa21/include/linux/blk.h:5,
                 from /usr/src/linux-2.4.20-pa21/include/linux/ide.h:771,=

                 from ide-cd.c:309:
/usr/src/linux-2.4.20-pa21/include/asm/pgalloc.h: In function `flush_cach=
e_page':
/usr/src/linux-2.4.20-pa21/include/asm/pgalloc.h:102: warning: comparison=

between signed and unsigned
In file included from ide-cd.c:318:
ide-cd.h: At top level:
ide-cd.h:440: error: long, short, signed or unsigned used invalidly for
`slot_tablelen'
ide-cd.c: In function `cdrom_analyze_sense_data':
ide-cd.c:468: warning: comparison between signed and unsigned
ide-cd.c: In function `cdrom_buffer_sectors':
ide-cd.c:816: warning: comparison between signed and unsigned
ide-cd.c:816: warning: signed and unsigned type in conditional expression=

ide-cd.c: In function `cdrom_read_intr':
ide-cd.c:994: warning: comparison between signed and unsigned
ide-cd.c:994: warning: signed and unsigned type in conditional expression=

ide-cd.c: In function `cdrom_read_from_buffer':
ide-cd.c:1061: warning: comparison between signed and unsigned
ide-cd.c: In function `cdrom_start_read_continuation':
ide-cd.c:1100: warning: comparison between signed and unsigned
ide-cd.c: In function `cdrom_write_intr':
ide-cd.c:1607: warning: comparison between signed and unsigned
ide-cd.c:1607: warning: signed and unsigned type in conditional expressio=
n
make[3]: *** [ide-cd.o] Error 1
make[3]: Leaving directory `/usr/src/linux-2.4.20-pa21/drivers/ide'
make[2]: *** [first_rule] Error 2
make[2]: Leaving directory `/usr/src/linux-2.4.20-pa21/drivers/ide'
make[1]: *** [_subdir_ide] Error 2
make[1]: Leaving directory `/usr/src/linux-2.4.20-pa21/drivers'
make: *** [_dir_drivers] Error 2

I have a look and in drivers/ide/ide-cd.h line 440 I found well:
    __u8 short slot_tabelen;

Any idea?

Thanks,
    Joel


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> I have a look and in drivers/ide/ide-cd.h line 440 I found well:
>     __u8 short slot_tabelen;
> 
> Any idea?

Look at the code after preprocessing with "-E" option.  This will
show you the actual code where the fault occurs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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On Tue, Jan 14, 2003 at 08:54:22AM -0500, John David Anglin wrote:
> > I have a look and in drivers/ide/ide-cd.h line 440 I found well:
> >     __u8 short slot_tabelen;
> > 
> > Any idea?
> 
> Look at the code after preprocessing with "-E" option.  This will
> show you the actual code where the fault occurs.

well, yeah, but the actual error's pretty clear.  you can't specify
two types for the same variable (__u8 is typedeffed to unsigned char).
unfortunately, gcc used to not even warn about this ;-(

the question is, what size is really wanted here?  i dunno, ask the
maintainer of that file.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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>
>> I have a look and in drivers/ide/ide-cd.h line 440 I found well:
>>     __u8 short slot_tabelen;
>> 
>> Any idea?
>
>Look at the code after preprocessing with "-E" option.  This will
>show you the actual code where the fault occurs.
>
Hi Dave,

Good idea and I do so for tree compiler still install:
gcc-3.0 -E

struct atapi_mechstat_header {

        __u8 fault : 1;
        __u8 changer_state : 2;
        __u8 curslot : 5;
# 427 "ide-cd.h"
        __u8 mech_state : 3;
        __u8 door_open : 1;
        __u8 reserved1 : 4;
# 438 "ide-cd.h" 
        byte curlba[3];
        byte nslots;
        __u8 short slot_tablelen;
};

gcc-3.2 -E

struct atapi_mechstat_header {

        __u8 fault : 1;
        __u8 changer_state : 2;
        __u8 curslot : 5;
# 427 "ide-cd.h"
        __u8 mech_state : 3;
        __u8 door_open : 1;
        __u8 reserved1 : 4;
# 438 "ide-cd.h"
        byte curlba[3];
        byte nslots;
        __u8 short slot_tablelen;
};

gcc-3.3 -E

struct atapi_mechstat_header {

        __u8 fault : 1;
        __u8 changer_state : 2;
        __u8 curslot : 5;
# 427 "ide-cd.h"
        __u8 mech_state : 3;
        __u8 door_open : 1;
        __u8 reserved1 : 4;
# 438 "ide-cd.h"
        byte curlba[3];
        byte nslots;
        __u8 short slot_tablelen;
};

Do you notice any difference OTC above I encounter another use of slot_ta=
blelen
as:

struct cdrom_mechstat_header {

        __u8 fault : 1;
        __u8 changer_state : 2;
        __u8 curslot : 5;
        __u8 mech_state : 3;
        __u8 door_open : 1;
        __u8 reserved1 : 4;
# 927 "/usr/src/linux-2.4.20-pa21/include/linux/cdrom.h"
        __u8 curlba[3];
        __u8 nslots;
        __u16 slot_tablelen;
};

hmm could this be a typo at one moment "unsigned short" would be changed
"__u8 short" ???

More over what could be the actual patch:
__u8 slot_tablelen;

or as in the 2d structure

__u16 slot_tablelen;

Cheers,
    Joel


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>         byte nslots;
>         __u8 short slot_tablelen;
          ^^^^ ^^^^^

As Willi said, the error is above and you will have to figure out or
ask the maintainer what the intended type for slot_tablelen was in
this struct.  Look to see if there is a maximum size defined somewhere.

>         __u8 nslots;
>         __u16 slot_tablelen;
> };
> 
> hmm could this be a typo at one moment "unsigned short" would be changed
> "__u8 short" ???

Could be a typo.  However, this is a different struct from the one above,
so the types could be different to accomodate different table sizes.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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>-- Original Message --
>Subject: Re: [parisc-linux] new gcc-snapshot problem [was: new gcc-defau=
lt
>for hppa]
>To: jsoe0708@tiscali.be
>From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>Cc: tausq@debian.org, parisc-linux@lists.parisc-linux.org,
>	debian-hppa@lists.debian.org
>Date: Tue, 14 Jan 2003 10:04:14 -0500 (EST)
>
>
>>         byte nslots;
>>         __u8 short slot_tablelen;
>          ^^^^ ^^^^^
>
>As Willi said, the error is above and you will have to figure out or
>ask the maintainer what the intended type for slot_tablelen was in
>this struct.  Look to see if there is a maximum size defined somewhere.
>
>>         __u8 nslots;
>>         __u16 slot_tablelen;
>> };
>> 
Ha the solution stand in 2.4.21: __u16

Thanks,
    Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:17382

A new year, a new kernel.  Er, lots of new kernels.  So much stuff has been
going on, I hope I haven't left too much out (note: do these more often).

 - Lamont prompted me to fix dino_inb/inw/outb/outw, and the airo driver.
 - Lamont wrote faster ip_csum routines.
 - Helge went completely nuts on drivers/video ;-)
 - James did some of the merges while I was away over xmas, and did a lot
   of work converting us over to the generic device model.
 - James & Randolph also finally tracked down a big stability problem;
   needed to check signals more often.
 - Lamont improved the unaligned handler.
 - We have a new framebuffer penguin ;-)  Thanks, Thibaut!
 - Randolph wrote oprofile support for parisc.
 - I found & fixed the cause of init failing to start on my 712 -- the
   kernel was trying to make sure there was at least 80MB ram available
   for each process.
 - I integrated Stephen Rothwell's generic compat changes & Sam Ravnborg's
   Makefile changes.

We did a large merge into Linus' tree yesterday, and he put out 2.5.58
today, leaving our diff standing around:

-rw-r--r--    1 willy    willy      376145 Jan 14 08:38 parisc-2.5.diff

I think that's the smallest it's ever been.

The largest chunks of that are:

-rw-r--r--    1 willy    willy      166953 Jan 12 07:54 parisc-hil.diff
-rw-r--r--    1 willy    willy      151345 Jan 12 07:47 parisc-video.diff

I'm not worried about drivers/video; Helge's doing a great job staying
synchronised with James Simmons' fb tree and that artificially inflates
that diff.

I am a little worried about the HIL keyboard/mouse/etc.  If someone could
step up to take care of making them work in 2.5 and generally look after
them, that'd be great.


Here's the current todo list:

Status:
-------
 - Merged to 2.5.58
 - 2.5.57 booted on A500.  712 has serial problems.
 - 2.5.56 booted on A500, 712
 - Don't know what other patches need to be brought forward from 2.4
 - SMP compiles, but doesn't work yet
 - No preemptible support


Todo:
-----
 - review makefiles for safe parallel builds
 - review diff vs 2.4 for additional changes
 - Serial code not working for c3000 (helge)
 - the fix for do_fork needs checking
 - Some options still need Kconfig help entries
 - drivers/char/keyboard.c:987:2: warning: #warning "Cannot generate rawmode
        keyboard for your architecture yet."
 - our PDC early debug console hacks need to be cleaned up somehow
 - drivers/pci/setup-bus.c has a hppa-specific #ifdef right now to
   prevent pci reinit from hpmc'ing the machine. this probably needs to
   go upstream
 - ad1889 driver - stress, debug, ALSA and commit to 2.5 (ggg, tausq, tbone)
 - ns87415 dma doesn't work reliably on suckyio-systems
 - CPU hotplug support (maybe not needed, V-Class doesn't support that feature)
 - flush_tlb_kernel_range is horribly inefficient
 - flush_icache_user_range could flush just that range rather than the
   entire page.
 - (ab)use kmap/kunmap on 64-bit to eliminate flush_dcache calls.
 - cp_new_stat32 for sys_parisc32.c is inefficient; maybe it's better
   to fill in a tmp stat32 and just do copy_to_user in one go at the end?
 - syscall signal return path needs work
 - task_struct/thread_info split -- task_struct should not be visible in
   entry.S, we need to move some items into thread_info -- this includes
   pt_regs and maybe some of the flags (ptrace, etc)
 - Use zone_highmem for the 256MB of RAM at 64GB on Astro-based machines.
   (NB, what does Stretch do?)
 - investigate not putting in extable entries for put_kernel_asm; will
   probably reduce kernel size
 - call to pdc_suspend_usb() in inventory.c crashes c3k with kernel 2.5
 - fix harmony buffer-overflows
 - fix HIL problem: ksoftirqd eats 100% cpu (kernel 2.4; kernel 2.5?)
 - write floppy driver for lasi
 - write floppy driver for suckyio
 - CONFIG_INTERMEZZO_FS   doesn't build (or link) (missing intermezzo includes, arch-indep)
 - CONFIG_REISERFS_FS builds (and links), works built-in
 - CONFIG_XFS_FS builds (and links), infinite loop when mounting volume.
 - spifi driver (rbrad)
 - write optimized versions of lcopy_{to,from}_user. Can we port the
   hpux versions?
 - changes in arch/parisc/kernel/signal.c regarding HACK needs testing
 - signal.c #if CACHE_FLUSHING_IS_NOT_BROKEN needs to be solved
 - proc files are b0rken (interrupts), possible irqi funcs related pb.
 - the irq needs to go from doubly-indexed to singly-indexed scheme, or else fs/proc/proc_misc.c needs changes.
 - kernel module loader support
 - IRQ cpu-affinity support
 - NPTL kernel support (CLONE_*TID flags need to be correctly handled by
   sys_clone() and friends)

 Started and in progress:
 ------------------------
 - port sym53c8xx hppa changes forward (helge)
 - push STI changes upstream (helge)
 - Look at Config.help too. (tbone, HIL -> helge?)
 - send tulip changes to jgarzik (grant)
 - switching Harmony to ALSA (laurent)
 - remove all references to sti(), cli(), save_flags() and restore_flags() (willy, tbone, ...)
 - send pci-serial patches to rmk (tausq)
 - port hil_kbd.c to new input layer
 - port hil_ptr.c to new input layer
 - oprofile support (tausq)


 Done:
 -----
 - stifb & sticon compiles and works (helge)
 - port ns87415 hppa changes forward (grant)
 - implemented synchronize_irq(). (grant)
 - port hp_keyb.c to input layer (laurent, tbone)


 CONFIG options without help:
 -----------------------------
 _USB_OHCI_HCD (add parisc info?)
 _HP_SDC_RTC
 _HIL_MLC
 _HIL_KBD (to improve)
 _HIL_PTR (to improve)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


From - Thu Nov 08 21:26:22 2018
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On Tue, Jan 14, 2003 at 07:57:01AM +0100, jsoe0708@tiscali.be wrote:
> Linux Tulip driver version 0.9.15-pre12 (Aug 9, 2002)
> tulip0: no phy info, aborting mtable build
> tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
> eth0: Digital DS21143 Tulip rev 65 at 0xf00, 00:30:D3:01:5A:3B, IRQ 66.
> tulip1:  EEPROM default media type Autosense.
> tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
> tulip_mii_recover: 100 ms
> tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.
> tulip1:  Advertising 01e1 on PHY 1, previously advertising 0101.
> eth1: Digital DS21143 Tulip rev 65 at 0x12100, 00:30:6E:06:23:D0, IRQ 130.
> Uniform Multi-Platform E-IDE driver Revision: 7.00beta-2.4
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> ....
> 
> No chance, as you can see, the two interfaces are of the same time.

I'll assume you meant same "type". They only happen to be the same rev
of the same device - mounted on different boards and wired
up to the PHY differently. ie they excercise slighly different code
paths in the tulip media init code path. This sounds more like a
bug in tulip driver than a compiler bug.

I've not tried add-on tulip's in my c3k (only minor differences to b2k).
I believe (but am not 100% sure right now) that gcc-3.2 built kernels
worked on that box.  I am sure gcc-3.2 built 2.4 kernels worked on a500.

Also, can you compare your .config with the one in 2.4.20-pa14.tgz
(ftp.p-l.o/kernels/c3000) or a default .config if that's closer?

BTW, one can safely enable MMIO on the b2k and perhaps either
(a) avoid the crash or (b) get an accurate IP on where in the code
it's crashing. "inb" has too many levels of indirection to see
exactly where in tulip it's crashing.

> (I also have a b180 but the buildin NIC is also "Digital DS21143 Tulip rev
> 65" :( )

Interesting. My b180 has:
grundler@debian:~$ lspci
00:01.0 SCSI storage controller: LSI Logic / Symbios Logic (formerly
NCR) 53c875 (rev 14)
00:01.1 SCSI storage controller: LSI Logic / Symbios Logic (formerly
NCR) 53c875 (rev 14)
00:02.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100]
(rev 01)
00:13.0 SCSI storage controller: LSI Logic / Symbios Logic (formerly
NCR) 53c875 (rev 04)
00:14.0 Ethernet controller: Digital Equipment Corporation DECchip
21142/43 (rev 30)

For the record, 21143 is the eth0. I use the eepro100 card for
local private subnet.

hth,
grant


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>-- Original Message --
>Date: Tue, 14 Jan 2003 09:52:03 -0700
>To: jsoe0708@tiscali.be
>Cc: Randolph Chung <tausq@debian.org>,
>	parisc-linux@lists.parisc-linux.org, debian-hppa@lists.debian.org
>Subject: Re: [parisc-linux] new gcc-default for hppa
>From: grundler@dsl2.external.hp.com (Grant Grundler)
>
>
>On Tue, Jan 14, 2003 at 07:57:01AM +0100, jsoe0708@tiscali.be wrote:
>> Linux Tulip driver version 0.9.15-pre12 (Aug 9, 2002)
>> tulip0: no phy info, aborting mtable build
>> tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
>> eth0: Digital DS21143 Tulip rev 65 at 0xf00, 00:30:D3:01:5A:3B, IRQ 66=
.
>> tulip1:  EEPROM default media type Autosense.
>> tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3)
block.
>> tulip_mii_recover: 100 ms
>> tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.
>> tulip1:  Advertising 01e1 on PHY 1, previously advertising 0101.
>> eth1: Digital DS21143 Tulip rev 65 at 0x12100, 00:30:6E:06:23:D0, IRQ
130.
>> Uniform Multi-Platform E-IDE driver Revision: 7.00beta-2.4
>> ide: Assuming 33MHz system bus speed for PIO modes; override with ideb=
us=3Dxx
>> ....
>> 
>> No chance, as you can see, the two interfaces are of the same time.
>
>I'll assume you meant same "type".

Yes, Sorry:

b2000:/var/logs# lspci
00:0c.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/=
43
(rev 41)
00:0d.0 Multimedia audio controller: Analog Devices AD1889 sound chip
00:0e.0 IDE interface: National Semiconductor Corporation 87415/87560 IDE=

(rev 03)
00:0e.1 Bridge: National Semiconductor Corporation 87560 Legacy I/O (rev
01)
00:0e.2 USB Controller: National Semiconductor Corporation USB Controller=

(rev 02)
00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53c895a (rev
01)
01:00.0 3D controller: Hewlett-Packard Company Visualize FXe (rev 03)
01:02.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/=
43
(rev 41)
01:03.0 SCSI storage controller: LSI Logic / Symbios Logic 53c875 (rev 26=
)
01:04.0 Network controller: Eicon Technology Corporation EiconCard P92


b180:/var/logs# lspci
00:13.0 SCSI storage controller: LSI Logic / Symbios Logic (formerly NCR)=

53c875 (rev 04)
00:14.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/=
43
(rev 41)

> They only happen to be the same rev
>of the same device - mounted on different boards and wired
>up to the PHY differently. ie they excercise slighly different code
>paths in the tulip media init code path. This sounds more like a
>bug in tulip driver than a compiler bug.
>
>I've not tried add-on tulip's in my c3k (only minor differences to b2k).=

>I believe (but am not 100% sure right now) that gcc-3.2 built kernels
>worked on that box.  I am sure gcc-3.2 built 2.4 kernels worked on a500.=

>
>Also, can you compare your .config with the one in 2.4.20-pa14.tgz
>(ftp.p-l.o/kernels/c3000)

There are a lot of differences (do you want it I do not think it will be
usefull)

> or a default .config if that's closer?

It will have to wait tommorrow (sorry)

>
>BTW, one can safely enable MMIO on the b2k and perhaps either

I assume you speek about:# CONFIG_TULIP_MMIO is not set (on my config?)

>(a) avoid the crash or (b) get an accurate IP on where in the code
>it's crashing. "inb" has too many levels of indirection to see
>exactly where in tulip it's crashing.
>
>> (I also have a b180 but the buildin NIC is also "Digital DS21143 Tulip=

>rev
>> 65" :( )
>
>Interesting. My b180 has:
>grundler@debian:~$ lspci
>00:01.0 SCSI storage controller: LSI Logic / Symbios Logic (formerly
>NCR) 53c875 (rev 14)
>00:01.1 SCSI storage controller: LSI Logic / Symbios Logic (formerly
>NCR) 53c875 (rev 14)
>00:02.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100]
>(rev 01)
>00:13.0 SCSI storage controller: LSI Logic / Symbios Logic (formerly
>NCR) 53c875 (rev 04)
>00:14.0 Ethernet controller: Digital Equipment Corporation DECchip
>21142/43 (rev 30)
>
>For the record, 21143 is the eth0. I use the eepro100 card for
>local private subnet.
>
Thanks for advises,
    Joel

PS: Sorry to be short but I have to leave, I inform you of progress

*********************************************
Vous surfez toujours avec une ligne classique ?
Faites des economies avec Tiscali Complete...
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Hi people,

	Where am I found the g++ 64 compiler for pa-risc? I am need to
compile a 64 bits applications and I am only found the gcc compiler for 64,
I install this compiler and when I try to compile a c++ aplication for 64, I
receive the message that the g++ compiler was not installed.
	 
	What am I do?

	Thanks in advance,

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com




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On Tue, Jan 14, 2003 at 12:53:32PM -0500, FARINATI,LEANDRO (HP-Brazil,ex1) wrote:
> 	Where am I found the g++ 64 compiler for pa-risc? I am need to
> compile a 64 bits applications and I am only found the gcc compiler for 64,
> I install this compiler and when I try to compile a c++ aplication for 64, I
> receive the message that the g++ compiler was not installed.

there is no 64-bit userspace available for PA/Linux yet.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Tue, Jan 14, 2003 at 03:54:09PM +0000, Matthew Wilcox wrote:
>  - drivers/pci/setup-bus.c has a hppa-specific #ifdef right now to
>    prevent pci reinit from hpmc'ing the machine. this probably needs to
>    go upstream

This code has changed alot. I'll look at it this week to see if
we still need this and if so, how to get rid of it.

>  - ad1889 driver - stress, debug, ALSA and commit to 2.5 (ggg, tausq, tbone)

What we have now only groks .wav files (eg cat foo.wav > /dev/audio).
We need better docs for this chip.
The ad1889.pdf data sheet is only an abbreviated guide to the chip.
It's not good enough for writing a driver from scratch.

>  - CPU hotplug support (maybe not needed, V-Class doesn't support that feature)

While we may not be able to physically remove the CPU, it would be
useful to take CPUs "offline" when they start misbehaving.

>  - fix harmony buffer-overflows

Laurent rewrote harmony to be Alsa compliant and it seems to be working.
I just have to learn how to setup/use alsa properly.

>  - the irq needs to go from doubly-indexed to singly-indexed scheme, or else fs/proc/proc_misc.c needs changes.

you fixed this.

>  Started and in progress:
>  ------------------------
>  - port sym53c8xx hppa changes forward (helge)
>  - push STI changes upstream (helge)
>  - Look at Config.help too. (tbone, HIL -> helge?)
>  - send tulip changes to jgarzik (grant)

done.

>  - switching Harmony to ALSA (laurent)

nearly done.

>  - oprofile support (tausq)

done? Seems like it's working but has a bug.

thanks,
grant


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> >  - oprofile support (tausq)
> 
> done? Seems like it's working but has a bug.

well, not really. the stuff in cvs now will compile but not work. i have
local changes to make it work (modulo some bugs), but it requires some 
core changes. i'm working with the oprofile developers to get those 
changes incorporated first.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Thu, Jan 09, 2003 at 11:39:05PM -0800, Vilmos Soti wrote:
> So now I am in the situation that the HP computer
> doesn't talk to the HP printer but to the Panasonic one.

Vilmos,
You seem to assume the HPUX workstation division and the HP printer
division support parisc-linux. Unfortunately,that's not the case.

The parallel port HW in 712/80 is designed in early 1990s.
Is the 712/80 capable of talking to your printer?

Later parallel port standards support bidirectional data and
I'm not sure LASI chip properly supports that. Maybe someone
can clarify since I'd like to hook a Connectix Color Quickcam
to my B180. I know it works with my laptop but had problems
on the b180.

grant


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PA-RISC Linux RAID1 Root HOWTO

I successfully got mirrored system drives going in my C3000 and
thought I'd share what I did to make this work.

Unfortunately, the Debian boot floppies do not support installations
onto software RAID so this is a multi-stage process:

    o Installing Debian on disk 1

    o Creating a degraded RAID1 array on disk 2 and copying the
      Debian installation over from disk 1

    o Repartitioning disk 1 and attaching it to the degraded array


                              --- o ---


1. First install a base Debian as usual onto the first disk.


2. Partition the second drive along the lines of this:  

    Disk /dev/sdb: 9173 MB, 9173114880 bytes
    255 heads, 63 sectors/track, 1115 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes

       Device Boot    Start       End    Blocks   Id  System
    /dev/sdb1             1         5     40131   f0  Linux/PA-RISC boot
    /dev/sdb2             6        14     72292+  fd  Linux raid autodetect
    /dev/sdb3            15        77    506047+  fd  Linux raid autodetect
    /dev/sdb4            78      1115   8337735   fd  Linux raid autodetect

Caveat: If your two disks are not the same brand/model, you need to be
extra careful.  Capacities tend to vary a bit between models and you
must make sure that you can fit the same number of blocks on both
drives.  Use fdisk to compare the disk sizes and adjust the partition
sizes accordingly.

Note how the partition type is set to "Linux raid autodetect" (0xfd)
instead of the usual "Linux" (0x83).

The first partition is PALO, followed by /boot, swap and then a big
root.  As usual it's important that /boot is within the first 2GB.
You can have more partitions if you wish, but for this exercise I
decided to keep things to a minimum.


3. Now it is time to create the raid devices:

    # apt-get install mdadm
    # mdadm --create /dev/md0 --level 1 --raid-devices=2 missing /dev/sdb2
    # mdadm --create /dev/md1 --level 1 --raid-devices=2 missing /dev/sdb3
    # mdadm --create /dev/md2 --level 1 --raid-devices=2 missing /dev/sdb4

This creates 3 degraded RAID1 devices (/boot, swap, and /) consisting
of a placeholder ("missing") and the partitions created on /dev/sdb.

    # cat /proc/mdstat 
    Personalities : [linear] [raid0] [raid1] [raid5] 
    read_ahead 1024 sectors
    md2 : active raid1 sdb4[1]
          8337664 blocks [2/1] [_U]

    md1 : active raid1 sdb3[1]
          505920 blocks [2/1] [_U]
      
    md0 : active raid1 sdb2[1]
          72192 blocks [2/1] [_U]
      
    unused devices: <none>

Note how the first drive in all three cases is missing ("_") as
opposed to up ("U").


4. Create filesystems/swap space:

    # mke2fs -j /dev/md0
    [...]
    # mke2fs -j /dev/md2
    [...]
    # mkswap /dev/md1
    [...]


5. Mount the filesystems and copy data over:

    # mount /dev/md2 /mnt
    # mkdir /mnt/boot
    # mount /dev/md0 /mnt/boot 
    # cd /mnt
    # tar -C / -clspf - . | tar -xlspvf -


6. Edit the /mnt/etc/palo.conf so it looks like this:

    # cat /mnt/etc/palo.conf 
    --commandline=2/vmlinux root=/dev/md2 HOME=/
    --recoverykernel=/boot/vmlinux-2.4.17-32


7. Make /dev/sdb bootable by running palo:

    # palo -f /mnt/etc/palo.conf -I /dev/sdb
    palo version 1.1 mkp@allegro Tue Jan 14 12:44:00 EST 2003
    ELF32 executable
    Partition Start(MB) End(MB) Id Type
    1               1      39   f0 Palo
    2              40     109   fd RAID
    3             110     604   fd RAID
    4             605    8746   fd RAID
    ipl: addr 32768 size 30720 entry 0x0
     ko 0x0 ksz 0 k64o 0x0 k64sz 0 rdo 0 rdsz 0
    <2/vmlinux root=/dev/md2 HOME=/>
    ipl: addr 32768 size 30720 entry 0x0
     ko 0x48000 ksz 3687647 k64o 0x0 k64sz 0 rdo 0 rdsz 0
    <2/vmlinux root=/dev/md2 HOME=/>

I have committed a small change to palo to allow it to boot from RAID
partitions.  So you have to grab the CVS version of palo until Paul
makes a new release.


8. Update /mnt/etc/fstab so it says:

    /dev/md2   /       ext3    errors=remount-ro       0       1
    /dev/md1   none    swap    sw                      0       0
    /dev/md0   /boot   ext3    errors=remount-ro       0       2
    [...]


9. Shut down and boot off the RAID device on the second disk:

    Main Menu: Enter command > boot fwscsi.6.0

Substitute whatever the drive is called on your box.  It varies
depending on machine type.

After booting up, make sure things look like this:

    # swapon -s
    Filename                    Type            Size    Used    Priority
    /dev/md1                    partition       505912  0       -1
    # mount | grep md
    /dev/md2 on / type ext3 (rw,errors=remount-ro)
    /dev/md0 on /boot type ext3 (rw,errors=remount-ro)


10. At this point the box is running off the degraded RAID1 devices.
It is time to repartition the first disk so it matches the layout of
the second drive:

    Disk /dev/sda: 9173 MB, 9173114880 bytes
    255 heads, 63 sectors/track, 1115 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes

       Device Boot    Start       End    Blocks   Id  System
    /dev/sda1             1         5     40131   f0  Linux/PA-RISC boot
    /dev/sda2             6        14     72292+  fd  Linux raid autodetect
    /dev/sda3            15        77    506047+  fd  Linux raid autodetect
    /dev/sda4            78      1115   8337735   fd  Linux raid autodetect


13. Once partitioning is taken care of, attach the new partitions to
the existing (degraded) RAID arrays:

    # mdadm /dev/md0 -a /dev/sda2
    mdadm: hot added /dev/sda2

    # mdadm /dev/md1 -a /dev/sda3
    mdadm: hot added /dev/sda3

    # mdadm /dev/md2 -a /dev/sda4
    mdadm: hot added /dev/sda4

    # cat /proc/mdstat 
    Personalities : [linear] [raid0] [raid1] [raid5] 
    read_ahead 1024 sectors
    md0 : active raid1 sda2[2] sdb2[1]
          72192 blocks [2/1] [_U]
          [====>................]  recovery = 23.9% (18112/72192) finish=0.1min speed=6037K/sec
    [...]


After a while all devices are in sync:

    # cat /proc/mdstat
    Personalities : [linear] [raid0] [raid1] [raid5] 
    read_ahead 1024 sectors
    md0 : active raid1 sda2[0] sdb2[1]
          72192 blocks [2/2] [UU]
      
    md1 : active raid1 sda3[0] sdb3[1]
          505920 blocks [2/2] [UU]
      
    md2 : active raid1 sda4[2] sdb4[1]
          8337664 blocks [2/2] [UU]

    unused devices: <none>


14. Make sda bootable with palo:

    # palo -I /dev/sda


15. Tell the system firmware which devices to boot from (again, your
drive names may vary) and turn on auto {boot,search,start}:

    Main Menu: Enter command > pa pri fwscsi.5.0
      Primary boot path:    FWSCSI.5.0

    Main Menu: Enter command > pa alt fwscsi.6.0
      Alternate boot path:  FWSCSI.6.0

    Main Menu: Enter command > co

    Configuration Menu: Enter command > au bo on
      Auto boot:            ON

    Configuration Menu: Enter command > au sea on
      Auto search:          ON

    Configuration Menu: Enter command > au st on
      Auto start:           ON

    Configuration Menu: Enter command > reset


And that's it.  Should the primary drive fail, the system will attempt
to boot from the alternate path (Assuming the SCSI bus isn't hosed,
that is.  On servers like A500 the two drive bays are on different
controllers for this reason.  But C3000 is a workstation and doesn't
have that feature).

-- 
Martin K. Petersen      http://mkp.net/



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Subject: [parisc-linux] 64 bit compiler error
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Xref: news.gmane.org gmane.linux.ports.parisc:17391

Hi,

I am facing some problems to install compile parisc 64 bit code. Could
anybody help me?

I download and installed the following packages:

gcc package: gcc-hppa64_3.0.4ds3-7.1_hppa.deb
libc6 package: libc6_2.3.1-9_hppa.deb
libdb1-compat package: libdb1-compat_2.1.3-7_hppa.deb

the problem is I'm receiving this error message when I try to compile my
code: 
	hppa64-linux/bin/ld: cannot open crt1.o: No such file or directory

When I try to to place this file in the current directory, I receive the
error message:
	crt1.o: file not recognized: File format not recognized
	collect2: ld returned 1 exit status
Regards,

Leandro Farinati


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Xref: news.gmane.org gmane.linux.ports.parisc:17392

> the problem is I'm receiving this error message when I try to compile my
> code: 
> 	hppa64-linux/bin/ld: cannot open crt1.o: No such file or directory
> 
> When I try to to place this file in the current directory, I receive the
> error message:
> 	crt1.o: file not recognized: File format not recognized
> 	collect2: ld returned 1 exit status

as willy already pointed out, there is no 64-bit userspace on palinux
yet. the 64-bit compilers are only meant for compiling kernels.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Xref: news.gmane.org gmane.linux.ports.parisc:17393

Hi Matthew,

some comments from me too:

On Tuesday 14 January 2003 16:54, Matthew Wilcox wrote:
>  - Helge went completely nuts on drivers/video ;-)

:-)

> The largest chunks of that are:
>
> -rw-r--r--    1 willy    willy      166953 Jan 12 07:54 parisc-hil.diff
> -rw-r--r--    1 willy    willy      151345 Jan 12 07:47 parisc-video.diff
>
> I'm not worried about drivers/video; Helge's doing a great job staying
> synchronised with James Simmons' fb tree and that artificially inflates
> that diff.

Correct. I'll continue to feed James with our changes, so next time
when Linus syncs, we should be done.

> I am a little worried about the HIL keyboard/mouse/etc.  If someone could
> step up to take care of making them work in 2.5 and generally look after
> them, that'd be great.

It's on my todo-list, but sadly I'm currently a little too much busy with
my day-job. I'll hope to find some time in the next 10 days to look closer at this.

> Status:
> -------
>  - Merged to 2.5.58
>  - 2.5.57 booted on A500.  712 has serial problems.
>  - 2.5.56 booted on A500, 712

2.5.58-pa2 booted on 715/64

> Todo:
> -----
>  - Serial code not working for c3000 (helge)

Sadly my c3000 is completely broken, so I won't be able to test it anymore.

>  - Some options still need Kconfig help entries

Maybe some of our native english speakers could jump in here ?

>  - drivers/char/keyboard.c:987:2: warning: #warning "Cannot generate
> rawmode keyboard for your architecture yet."

I might look at this...

>  - our PDC early debug console hacks need to be cleaned up somehow

... and this too.

BTW, what happened to our IODC-Console ?????

>  - fix HIL problem: ksoftirqd eats 100% cpu (kernel 2.4; kernel 2.5?)

I'll try to look at this too.

>  - proc files are b0rken (interrupts), possible irqi funcs related pb.

pa64:~# cat /proc/interrupts 
           CPU00 
 32:     108092      PARISC-CPU  timer
 33:      13183      PARISC-CPU  lasi
 39:    1122504      PARISC-CPU  wax
 86:      11647            Lasi  lasi710
 87:        969            Lasi  i82596
 90:        569            Lasi  serial
125:          0             Wax  HP SDC NMI
126:    1122503             Wax  HP SDC

pa64:~# uname -a
Linux pa64 2.5.58-pa2 #349 Tue Jan 14 23:00:41 CET 2003 parisc unknown unknown GNU/Linux

I think I fixed that 1-2 weeks ago.

> - kernel module loader support

YES, PLEASE !


>  Started and in progress:
>  ------------------------
>  - port sym53c8xx hppa changes forward (helge)

I can't continue here, maybe some can take over and look if it's still necessary ?

>  - port hil_kbd.c to new input layer
>  - port hil_ptr.c to new input layer

belongs to HIL stuff.


Helge



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> > 	Where am I found the g++ 64 compiler for pa-risc? I am need to
> > compile a 64 bits applications and I am only found the gcc compiler for 64,
> > I install this compiler and when I try to compile a c++ aplication for 64, I
> > receive the message that the g++ compiler was not installed.
> 
> there is no 64-bit userspace available for PA/Linux yet.
> 

I'm sitting in my living room working on a static 64-bit userspace, but
the TODO list for even the 32-bit userspace is still big :)

c.


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I was trawling through ftp.parisc-linux.org/cvs looking for a tarball of
the linux-2.5 tree and couldn't see anything, apart from a /cvs/2.5
directory (which is currently empty).

Is there enough disk space to do a linux-2.5 tarball for the FTP server?

Also the /cvs directory contains a few files that look like stuff-ups
from the CVS tarball roller: linux-.tar.gz and patch-.diff.gz ...

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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A new year and a new look at our userspace. Spurred on by Willy's email
about Kernel developments, I wanted to recap some userspace movement in
the past while: 

--- Individual Maintainers ---

- John David Anglin (JDA) is spearheading gcc development for hppa
	= Developing the coolest locking primitive ever seen in glibc.
	= Spotted nasty lock mistakes in pthreads
	= Has gcc failing less and running faster.

- Carlos O'Donell took over Glibc development from Willy
	= Sent 90% of the glibc patches upstream
	 - Big thanks to Willy who did a _lot_ of the 
	   original work, and suffered through it's maintenance.
	= Fixed rounding mask bugs in glibc fp* code
	= SHMLBA bugs squashed
	= Synchronized sigcontext between kernel and glibc.
	= Going crazy on Glibc, and writing static 64-bit Glibc.
	= We saw 2.3.x released for HPPA :)
	= Mulling over cache coherency, ldcw, and D-cache move-in's.

- I think JDA took over binutils for HPPA too...

--- Currently Being worked On ---

- GNU Glibc

	= Preparing final 10% into a form that can be accepted
	  upstream.
	= Fixing locking primitives.
	= Trying to have zero failures in 'make check'
	= fraiseexcept is still a bugger with delayed exceptions?
	= EWOULDBLOCK emulation needs analysis.
	= setjmp/longjmp implementation needs testing.
	= Implementing *context() calls.
	= Make atomic ops atomic (atomicity.h)
	= Initial implementation of a static 64-bit Glibc is in 
	  the works.

- GNU Gdb

	= Initially maintained as a patch for GDB 5.2 in debian.
	= Not an offical GDB port yet...
	= Carlos is working on and off to work this into
	  GDB 5.3, since he agreed to do it for Drow.
	= Help appreciated.
	= Thanks for various people like Richard, JDA and Randolph
	  for fixing bugs.

- GNU Binutils

	= A mystery to me... and I actively read the mailinglist :)
	= I believe we have some symbol visibility bugs.

====

Things that could be done if anyone is thinking of a project, though
help on the above is much more appreciated.

- Prelink on HPPA, requiring some binutils/glibc changes
	= http://freshmeat.net/projects/prelink/?topic_id=253
- NTPL on HPPA, requiring gcc/binutils/glibc changes
	= http://people.redhat.com/drepper/nptl-design.pdf
	= http://people.redhat.com/drepper/tls.pdf

====

How other ports do it, I'm not sure. There's a lot of love in this
particular port :) Again, many thanks to all of the hardworking
individuals who help. 

Cheers,
Carlos.

p.s. Any glaring inconsistencies or lack of knowledge are mine and mine
     alone, so feel free to correct them.


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> - I think JDA took over binutils for HPPA too...

;-(

> 	= I believe we have some symbol visibility bugs.

I have some testsuite fixes that make them invisible.  I'm not aware
of any actual bugs (except hppa64).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Martin,

Congratulation, great job.

I already build a raid1 on my b180 but /boot partition and it works fine.=

So I now just have to update palo build the raid1 on this boot slice.

Well just a stupid question:
since now my md devices were:
/dev/md0(sda5+sdb5) /
/dev/md1(sda2+sdb2)  swap
/dev/md2(sda6+sdb6) /home
...
and I would like it becomes:
/dev/md0(sda3+sdb3) /boot
/dev/md1(sda5+sdb5) /
/dev/md2(sda2+sdb2) swap
...

so, finaly, how to remumber md0 into md1 ...?

I would also ask you if you could advise me on the resizing of a md.
My md7 is a raid1 with the last slices sda11 and sdb11 of disks (mounted
on /var). As there are still some free space at the end of each disk, I
would like to increase it. Could you advise me howto do (I try to find do=
c
but no success and my test was not more succesfull and I do not want to
loose the contents of the fs)?

Thanks in advance for your attention.

>-- Original Message --
>To: parisc-linux@lists.parisc-linux.org
>From: "Martin K. Petersen" <mkp@mkp.net>
>Subject: [parisc-linux] PA-RISC Linux RAID1 Root HOWTO
>Date: 14 Jan 2003 14:27:11 -0500
>
>
>
>PA-RISC Linux RAID1 Root HOWTO
>

Very clear :)

Thanks,
    Joel



*********************************************
Vous surfez toujours avec une ligne classique ?
Faites des economies avec Tiscali Complete...
Plus d'info sur ... http://complete.tiscali.be





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What's the deal with the various HP-branded tulip-based NICs? Are they 
expected to "just work" or what? I found one that sure doesn't, but then 
again, but my kernel isn't actually new ... (2.4.18-32 packaged)

The card is the HP ANA-6911A/AUI (yes, it's a 10/100BT with coax and 
AUI too), part# A3738-60001, and it _is_ found by the tulip driver, but 
for some reason the driver claims that "no MII transceiver found", and 
does list the 10B2 and AUI connections too. But I can't seem to make it 
form a link with TP or coax, no matter what I do. And the AUI connector 
is blocked by the C240 chassis. Is there a simple way to force the use of 
a certain transceiver? Tried mii-tool already and it didn't help much - 
but then again it doesn't seem to know about the coax and AUI at all...

Then again, I haven't tested this card on HP-UX either yet so it could be 
a hardware problem...


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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On Wed, Jan 15, 2003 at 12:49:42AM -0500, Carlos O'Donell wrote:
> 
> A new year and a new look at our userspace. Spurred on by Willy's email
> about Kernel developments, I wanted to recap some userspace movement in
> the past while: 

One individual who's not mentioned here is Lamont Jones who runs the
Debian hppa autobuilder.  He's doing a great job of keeping us >99%
uptodate.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Wed, Jan 15, 2003 at 10:56:20AM +0200, Nahkola Mikko wrote:
> What's the deal with the various HP-branded tulip-based NICs? Are they 
> expected to "just work" or what? I found one that sure doesn't, but then 
> again, but my kernel isn't actually new ... (2.4.18-32 packaged)

we're always interested in hearing about cards that don't
work.. hp-branded or not ;-)

> The card is the HP ANA-6911A/AUI (yes, it's a 10/100BT with coax and 
> AUI too), part# A3738-60001, and it _is_ found by the tulip driver, but 
> for some reason the driver claims that "no MII transceiver found", and 
> does list the 10B2 and AUI connections too. But I can't seem to make it 
> form a link with TP or coax, no matter what I do. And the AUI connector 
> is blocked by the C240 chassis. Is there a simple way to force the use of 
> a certain transceiver? Tried mii-tool already and it didn't help much - 
> but then again it doesn't seem to know about the coax and AUI at all...

how very interesting.  could you send an lspci -vvx for that card?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Wed, Jan 15, 2003 at 12:21:23PM +0800, Andrew Shugg wrote:
> I was trawling through ftp.parisc-linux.org/cvs looking for a tarball of
> the linux-2.5 tree and couldn't see anything, apart from a /cvs/2.5
> directory (which is currently empty).

Those aren't currently being generated (AFAIK).  What _is_ being generated
are the patches against upstream: http://ftp.parisc-linux.org/2.5/kernel-src/

> Is there enough disk space to do a linux-2.5 tarball for the FTP server?

Yes, certainly.  Do you still want that, given the existance of these
patches?

> Also the /cvs directory contains a few files that look like stuff-ups
> from the CVS tarball roller: linux-.tar.gz and patch-.diff.gz ...

I can see them... but I can also see the CVS scripts are still running.
Possibly they'll be renamed later.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi Grant and Randolph,

>-- Original Message --
>From: jsoe0708@tiscali.be
>Subject: Re: [parisc-linux] new gcc-default for hppa
>To: grundler@dsl2.external.hp.com
>Cc: "Randolph Chung" <tausq@debian.org>,
>	parisc-linux@lists.parisc-linux.org, debian-hppa@lists.debian.org
>Date: Tue, 14 Jan 2003 18:49:46 +0100
>
>
>>-- Original Message --
>>Date: Tue, 14 Jan 2003 09:52:03 -0700
>>To: jsoe0708@tiscali.be
>>Cc: Randolph Chung <tausq@debian.org>,
>>	parisc-linux@lists.parisc-linux.org, debian-hppa@lists.debian.org
>>Subject: Re: [parisc-linux] new gcc-default for hppa
>>From: grundler@dsl2.external.hp.com (Grant Grundler)
>>
>>
>>On Tue, Jan 14, 2003 at 07:57:01AM +0100, jsoe0708@tiscali.be wrote:
>>> Linux Tulip driver version 0.9.15-pre12 (Aug 9, 2002)
>>> tulip0: no phy info, aborting mtable build
>>> tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.=

>>> eth0: Digital DS21143 Tulip rev 65 at 0xf00, 00:30:D3:01:5A:3B, IRQ
66.
>>> tulip1:  EEPROM default media type Autosense.
>>> tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3)
>block.
>>> tulip_mii_recover: 100 ms
>>> tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.=

>>> tulip1:  Advertising 01e1 on PHY 1, previously advertising 0101.
>>> eth1: Digital DS21143 Tulip rev 65 at 0x12100, 00:30:6E:06:23:D0, IRQ=

>130.
>>> Uniform Multi-Platform E-IDE driver Revision: 7.00beta-2.4
>>> ide: Assuming 33MHz system bus speed for PIO modes; override with ide=
bus=3Dxx
>>> ....
>>>
>>> No chance, as you can see, the two interfaces are of the same time.
>>
>>I'll assume you meant same "type".
>
>Yes, Sorry:
>
>b2000:/var/logs# lspci
>00:0c.0 Ethernet controller: Digital Equipment Corporation DECchip 21142=
/43
>(rev 41)
>00:0d.0 Multimedia audio controller: Analog Devices AD1889 sound chip
>00:0e.0 IDE interface: National Semiconductor Corporation 87415/87560 ID=
E
>(rev 03)
>00:0e.1 Bridge: National Semiconductor Corporation 87560 Legacy I/O (rev=

>01)
>00:0e.2 USB Controller: National Semiconductor Corporation USB Controlle=
r
>(rev 02)
>00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53c895a (rev
>01)
>01:00.0 3D controller: Hewlett-Packard Company Visualize FXe (rev 03)
>01:02.0 Ethernet controller: Digital Equipment Corporation DECchip 21142=
/43
>(rev 41)
>01:03.0 SCSI storage controller: LSI Logic / Symbios Logic 53c875 (rev
26)
>01:04.0 Network controller: Eicon Technology Corporation EiconCard P92
>
>
>b180:/var/logs# lspci
>00:13.0 SCSI storage controller: LSI Logic / Symbios Logic (formerly NCR=
)
>53c875 (rev 04)
>00:14.0 Ethernet controller: Digital Equipment Corporation DECchip 21142=
/43
>(rev 41)
>
>> They only happen to be the same rev
>>of the same device - mounted on different boards and wired
>>up to the PHY differently. ie they excercise slighly different code
>>paths in the tulip media init code path. This sounds more like a
>>bug in tulip driver than a compiler bug.
>>
>>I've not tried add-on tulip's in my c3k (only minor differences to b2k)=
.
>>I believe (but am not 100% sure right now) that gcc-3.2 built kernels
>>worked on that box.  I am sure gcc-3.2 built 2.4 kernels worked on a500=
.
>>
>>Also, can you compare your .config with the one in 2.4.20-pa14.tgz
>>(ftp.p-l.o/kernels/c3000)
>
>There are a lot of differences (do you want it I do not think it will be=

>usefull)
>
>> or a default .config if that's closer?
>
>It will have to wait tommorrow (sorry)
>
>>
>>BTW, one can safely enable MMIO on the b2k and perhaps either
>
>I assume you speek about:# CONFIG_TULIP_MMIO is not set (on my config?)

I now add CONFIG_TULIP_MMIO=3Dyes

and I got this time actual stack dump:
 for buildin NIC:
Stack Dump:
 1ebd4780:  0004ff0f 54203230 38204345 35343a30 
 1ebd4770:  2031343a 101e0e7c 64204a61 31205765 
 1ebd4760:  2e0a2023 6d61696c 61766520 6f752068 
 1ebd4750:  75780a59 2f4c696e 20474e55 00075f10 
 1ebd4740:  0000001b 00069e0c 00069e0c 00000008 
 1ebd4730:  1ebd4588 101e27e4 1fe3ac80 00000000 

Kernel addresses on the stack:
 [<101e0e7c>]  [<101e27e4>]  [<101e25f8>]  [<101e0bec>] 
 [<1014b828>]  [<101de398>]  [<10104a6c>]  [<1013f4ac>] 
 [<10109f90>]  [<10109084>]  [<10109d4c>]  [<1013ff24>] 
 [<1013e3e4>]  [<1014ec28>]  [<101213f0>] 

Kernel Fault: Code=3D26 regs=3D1ebd4780 (Addr=3D00000082)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 1039d010 101e27e4 0000000a
r04-07  0000001b 0000000a 1ed034e0 00010004
r08-11  00000000 0000006e 00000000 00075ec0
r12-15  1ebea96c 00069e0c 00069e0c 00069e0c
r16-19  00000004 00069e0c 00000004 0000006e
r20-23  00000001 00000000 101e11c8 0000000a
r24-27  1ebd4748 0000000a 0000000a 10330010
r28-31  00000000 00000031 1ebd4780 101e1098
sr0-3   00000000 000002d8 00000000 000002d8
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101e0dcc 101e0dd0
 IIR: 4b3600f0    ISR: 00000000  IOR: 00000082
 CPU:        0   CR30: 1ebd4000 CR31: 103e8000
 ORIG_R28: 78110466

  AND FOR External Nic:


Stack Dump:
 1ec3e080:  0004ff0f 00000000 00000000 00000000 
 1ec3e070:  00000000 701e49c4 70707070 70707070 
 1ec3e060:  70707070 70707070 70707070 70707070 
 1ec3e050:  70707070 70707070 70707070 70707070 
 1ec3e040:  70707070 70707070 70707070 70707070 
 1ec3e030:  70707070 70707070 70707070 70707070 

Kernel addresses on the stack:
 [<101e07d8>]  [<101e0e7c>]  [<101e11c8>]  [<101e2b28>] 
 [<101e1710>]  [<101e49c4>]  [<101e07d8>]  [<101e0e7c>] 
 [<101e11c8>]  [<101e2b28>]  [<101e1710>]  [<101e49c4>] 
 [<101e07d8>]  [<101e0e7c>]  [<101e11c8>]  [<101e2b28>] 
 [<101e1710>]  [<101e49c4>]  [<101e07d8>]  [<101e0e7c>] 
 [<101e11c8>]  [<101e2b28>]  [<101e1710>]  [<101e49c4>] 
 [<101e07d8>]  [<101e0e7c>]  [<101e11c8>]  [<101e2b28>] 
 [<101e1710>]  [<101e49c4>]  [<101e07d8>]  [<101e0e7c>] 
 [<101e11c8>]  [<101e2b28>]  [<101e1710>]  [<101e49c4>] 
 [<101e07d8>]  [<101e0e7c>]  [<101e11c8>]  [<101e2b28>] 
 [<101e1710>]  [<101e49c4>]  [<101e07d8>]  [<101e0e7c>] 
 [<101e11c8>]  [<101e2b28>]  [<101e1710>]  [<101e49c4>] 
 [<101e07d8>]  [<101e0e7c>]  [<101e11c8>]  [<101e2b28>] 
 [<101e1710>]  [<101e49c4>]  [<101e07d8>]  [<101e0e7c>] 
 [<101e11c8>]  [<101e2b28>]  [<101e1710>]  [<101e49c4>] 
 [<101e07d8>]  [<101e0e7c>]  [<101e11c8>]  [<101e2b28>] 
 [<101e1710>]  [<101e49c4>]  [<101e07d8>]  [<101e0e7c>] 
 [<101e11c8>]  [<101e2b28>]  [<101e1710>]  [<101e49c4>] 
 [<101e07d8>]  [<101e0e7c>]  [<101e11c8>]  [<101e2b28>] 
 [<101e1710>] 

Kernel Fault: Code=3D6 regs=3D1ec3e080 (Addr=3D701e49c4)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 1039d010 701e49c4 1ec60000
r04-07  1ec61000 00000001 1ec3dfc8 1ec60000
r08-11  00000001 00000000 00000000 00039750
r12-15  1ec6096c 00000000 0000b71b 00035054
r16-19  00029054 faf00208 000020a8 0000007f
r20-23  00000f92 00000001 00000000 00000001
r24-27  1fea9a60 00000000 1ec61000 10330010
r28-31  00001000 00000031 1ec3e080 101e07d8
sr0-3   00000000 000002c2 00000000 000002c2
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 701e49c4 701e49c8
 IIR: 43ffff80    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 1ebf0000 CR31: 103e8000
 ORIG_R28: 00000000

Completly deferent as you predict.

(Randolph: Do you want I send you those new material: kernel, system.map,=

...?)

I also forget to recall: this only occurs for incoming ethernet trafic(ie=

ssh, telnet, ftp, coming from an external server). The outgoing traffic
works fine (I just do a telnet and a ftp from this server to an external
one without crash).

HTH,
    Joel



*********************************************
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Faites des economies avec Tiscali Complete...
Plus d'info sur ... http://complete.tiscali.be





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>>>>> "Joel" == jsoe0708  <jsoe0708@tiscali.be> writes:

Joel,

Joel> so, finaly, how to remumber md0 into md1 ...?

Why do you want to renumber it?  It's just an arbitrary name.


Joel> I would also ask you if you could advise me on the resizing of a
Joel> md.  My md7 is a raid1 with the last slices sda11 and sdb11 of
Joel> disks (mounted on /var). As there are still some free space at
Joel> the end of each disk, I would like to increase it. Could you
Joel> advise me howto do (I try to find doc but no success and my test
Joel> was not more succesfull and I do not want to loose the contents
Joel> of the fs)?

        http://unthought.net/raidreconf/index.shtml

Read the disclaimer carefully.

Once you've expanded the md device, you'll have to grow the
filesystem:

        http://ext2resize.sourceforge.net/

If I recall correctly, the ext3fs resizer isn't quite ready yet.  So
you may have to convert your filesystem back to ext2, resize it, and
then turn journalling back on.

-- 
Martin K. Petersen      http://mkp.net/



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On Wed, Jan 15, 2003 at 11:26:24AM -0500, Martin K. Petersen wrote:
> If I recall correctly, the ext3fs resizer isn't quite ready yet.  So
> you may have to convert your filesystem back to ext2, resize it, and
> then turn journalling back on.

resize2fs (included in e2fsprogs) works fine on ext3.

Steve
-- 
steve@silug.org           | Southern Illinois Linux Users Group
(618)398-7360             | See web site for meeting details.
Steven Pritchard          | http://www.silug.org/


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>>>>> "Steven" == Steven Pritchard <steve@silug.org> writes:

Steven> resize2fs (included in e2fsprogs) works fine on ext3.

Oh, right.  Forgot about that one.  It's offline only, but that's fine
in this case.

-- 
Martin K. Petersen      http://mkp.net/



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Hi all,

Is it possible to install parisc linux into an empty logical volume of an
existing HP-UX 11 installation and then boot one or the other OS?

Best regards,
Reiner.


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On Wed, Jan 15, 2003 at 05:56:03PM +0100, BUEHL,REINER (HP-Germany,ex1) wrote:
> Hi all,
> 
> Is it possible to install parisc linux into an empty logical volume of an
> existing HP-UX 11 installation and then boot one or the other OS?

No, I'm afraid not.  Linux doesn't understand the LVM that HP-UX uses.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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	Hi people,

	Where am I find the to do list to 64 userspace (to compile 64 bits
applications)?

	Thanks in advance,

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com




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> 	Hi people,
> 
> 	Where am I find the to do list to 64 userspace (to compile 64 bits
> applications)?

To my knowledge, there isn't one.  Roughly what is required is:

1) Kernel -- design and implement 64-bit system calls.

2) Binutils -- port hpux 64-bit tools to linux.

3) Gdb -- same as binutils.

4) GCC --  same as binutils.

5) Glibc -- implement 64-bit specific parts of ABI and system calls.

The ABI hasn't been discussed in detail other than it was to be generally
similar to that used under 64-bit hpux.   There are significant differences
between 64-bit hpux and 32-bit linux.  They use different linkers and
differ in the handling of function pointers.  The 32-bit linker was
ported from the 386 code while the 64-bit linker used by hpux was written
from scratch.  As a result, the 64-bit code is less tested and has more bugs.

Are you offering support from HP?  It's taken a number of years to
get to the current state of development on the 32-bit port given the
level of volunteer effort and support from HP.  What you are asking
won't happen for months, if not years.  The time to implement a 64-bit
userspace won't be as great as for the 32-bit port, but it still a
very significant effort.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Wed, Jan 15, 2003 at 01:40:28PM -0500, John David Anglin wrote:
> To my knowledge, there isn't one.  Roughly what is required is:
> 
> 1) Kernel -- design and implement 64-bit system calls.

Another piece of the kernelside puzzle is designing the VM layout for
64-bit processes.  Do we want to (as ia64 does) reserve parts of the address
space for the kernel?  Map shared libraries in different quadrants from
the user process?  Keep data in yet another quadrant?

It's a lot of work, and I'm not sure the will is there to make it happen.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> > A new year and a new look at our userspace. Spurred on by Willy's email
> > about Kernel developments, I wanted to recap some userspace movement in
> > the past while: 
> 
> One individual who's not mentioned here is Lamont Jones who runs the
> Debian hppa autobuilder.  He's doing a great job of keeping us >99%
> uptodate.

Good call! Where would we be without lj :)

c.



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> > 1) Kernel -- design and implement 64-bit system calls.
> 
> Another piece of the kernelside puzzle is designing the VM layout for
> 64-bit processes.  Do we want to (as ia64 does) reserve parts of the address
> space for the kernel?  Map shared libraries in different quadrants from
> the user process?  Keep data in yet another quadrant?
> 
> It's a lot of work, and I'm not sure the will is there to make it happen.
> 

We are swamped with a 32-bit userspace, and 32/64-bit kernel, creating a
full 64-bit userspace is extremely difficult. I'm currently trying to
workout the bits to get a static 64-bit Glibc, though currently fixing
the 32-bit Glibc we have is time consuming enough.

c.



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> To my knowledge, there isn't one.  Roughly what is required is:
> 
> 1) Kernel -- design and implement 64-bit system calls.

Currently, 64-bit kernels return bogus sigcontext structures to our
32-bit userspace, they stuff the sigcontext with 64-bit registers when
it is only expecting 32-bits. It seems like sigcontext should be
expanded to have 64-bits per register for both 32 and 64 bit kernels?
This is definately an ABI breakage. Though it's funny that not many
programs are broken under 64-bit kernels, but I guess that without
*context() calls implemented for HPPA in glibc, the returned ucontext is
not used (except for that weird LISP interpreter that Krystof was
porting).
 
> 2) Binutils -- port hpux 64-bit tools to linux.

I thought we had a 64-bit binutils port?

> 3) Gdb -- same as binutils.

This would require some work.

> 4) GCC --  same as binutils.

hppa64-linux-gcc?

> 5) Glibc -- implement 64-bit specific parts of ABI and system calls.

This is a biggie, 64-bit SHLIBS being the large headache.

> Are you offering support from HP?  It's taken a number of years to
> get to the current state of development on the 32-bit port given the
> level of volunteer effort and support from HP.  What you are asking
> won't happen for months, if not years.  The time to implement a 64-bit
> userspace won't be as great as for the 32-bit port, but it still a
> very significant effort.

Perhaps we will see it's emergence in the next few years :)

c.



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> > To my knowledge, there isn't one.  Roughly what is required is:
> > 
> > 1) Kernel -- design and implement 64-bit system calls.
> 
> Currently, 64-bit kernels return bogus sigcontext structures to our
> 32-bit userspace, they stuff the sigcontext with 64-bit registers when
> it is only expecting 32-bits. It seems like sigcontext should be
> expanded to have 64-bits per register for both 32 and 64 bit kernels?
> This is definately an ABI breakage. Though it's funny that not many
> programs are broken under 64-bit kernels, but I guess that without
> *context() calls implemented for HPPA in glibc, the returned ucontext is
> not used (except for that weird LISP interpreter that Krystof was
> porting).

I wonder if this isn't the problem with expect.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > 2) Binutils -- port hpux 64-bit tools to linux.
> 
> I thought we had a 64-bit binutils port?

There enough to build kernels, static binaries, ...  The linker is really
the problem.  First, we would need the processor/os specific ELF
specification.  The handling of function pointers is another key part
as it affects how shared libraries are implemented and the dynamic loader.

I don't see the gcc issues as major as we have the code generation part
pretty much under control.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > > 1) Kernel -- design and implement 64-bit system calls.
> > 
> > Currently, 64-bit kernels return bogus sigcontext structures to our
> > 32-bit userspace, they stuff the sigcontext with 64-bit registers when
> > it is only expecting 32-bits. It seems like sigcontext should be
> > expanded to have 64-bits per register for both 32 and 64 bit kernels?
> > This is definately an ABI breakage. Though it's funny that not many
> > programs are broken under 64-bit kernels, but I guess that without
> > *context() calls implemented for HPPA in glibc, the returned ucontext is
> > not used (except for that weird LISP interpreter that Krystof was
> > porting).
> 
> I wonder if this isn't the problem with expect.
> 

Shazam! Ballz in your court. I ran across this problem in the summer
when working with Krystof. He actually caused my C3K to crash, different
issue though :}

If you look at parisc/kernel/signal.c and look for the word "HACK"
you'll see what I mean. There are few expletives that need to be cleaned
up. Randolph had suggested adding thread personalities so we can tell
what the userspace looks like and choose the right sigcontext to send
back. However, it seems that truncating the 64-bit regs is a crazy thing
to do since you might lose information.

I'm all for expanding the sigcontext to 64-bits. As a matter of fact
I'll try rebuilding glibc with an expanded sigcontext (remembering that
it has to be changed in the kernel definition and the glibc definition).
Added to that will be the minor hack to your ldwc_align code to fdce the
lock cacheline before usage.

c.



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> > I thought we had a 64-bit binutils port?
> 
> There enough to build kernels, static binaries, ...  The linker is really
> the problem.  First, we would need the processor/os specific ELF
> specification.  The handling of function pointers is another key part
> as it affects how shared libraries are implemented and the dynamic loader.

Okay. Were on the same page :)
 
> I don't see the gcc issues as major as we have the code generation part
> pretty much under control.

Yup :)

c.



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> 
> I wonder if this isn't the problem with expect.
> 
> Dave

On another note, if expect calls code that uses atomic_add,
compare_and_swap, and exchange_and_add, they are currently generic and
not guaranteed to be atomic under any situation.

See atomicity.h.

Damn, I should really get around to implementing these.

c.



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> > I wonder if this isn't the problem with expect.
> > 
> > Dave
> 
> On another note, if expect calls code that uses atomic_add,
> compare_and_swap, and exchange_and_add, they are currently generic and
> not guaranteed to be atomic under any situation.
> 
> See atomicity.h.

I doubt it.  It does a lot of waiting around with alarm signals going off.
As I recall, when it is filling the syslog, there are two expect processes
running and killing the child fixes the problem.  This causes dejagnu to
abort the current testsuite.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi,

> > The card is the HP ANA-6911A/AUI (yes, it's a 10/100BT with coax and
> > AUI too), part# A3738-60001, and it _is_ found by the tulip driver, but
> > for some reason the driver claims that "no MII transceiver found", and
> > does list the 10B2 and AUI connections too. But I can't seem to make it
> > form a link with TP or coax, no matter what I do. And the AUI connector
> > is blocked by the C240 chassis. Is there a simple way to force the use of
> > a certain transceiver? Tried mii-tool already and it didn't help much -
> > but then again it doesn't seem to know about the coax and AUI at all...
>
> how very interesting.  could you send an lspci -vvx for that card?

This might be a card with an older DC21x4x chipset. Maybe the de4x5.c
driver works better in this case.

--jochen



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You can only do it using 2 completely seperate disks or in my case I boot from 2 different LUNs on my Autoraid Model 12 - one LINUX the other HP-UX.
derek
 "BUEHL,REINER (HP-Germany,ex1)" <reiner.buehl@hp.com> wrote:Hi all,

Is it possible to install parisc linux into an empty logical volume of an
existing HP-UX 11 installation and then boot one or the other OS?

Best regards,
Reiner.
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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<P>You can only do it using 2 completely seperate disks or in my case I boot from 2 different LUNs on my Autoraid Model 12 - one LINUX the other HP-UX.
<P>derek
<P>&nbsp;<B><I>"BUEHL,REINER (HP-Germany,ex1)" &lt;reiner.buehl@hp.com&gt;</I></B> wrote:
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Hi all,<BR><BR>Is it possible to install parisc linux into an empty logical volume of an<BR>existing HP-UX 11 installation and then boot one or the other OS?<BR><BR>Best regards,<BR>Reiner.<BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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On Wed, Jan 15, 2003 at 05:14:47PM +0100, jsoe0708@tiscali.be wrote:
> >There are a lot of differences (do you want it I do not think it will be
> >usefull)
> >
> >> or a default .config if that's closer?
> >
> >It will have to wait tommorrow (sorry)

np. I also want you to look at something that is known
to work before going too far.

> I now add CONFIG_TULIP_MMIO=yes

yes. that's what I meant.

> (Randolph: Do you want I send you those new material: kernel, system.map,
> ...?)

Or make them available via http or ftp.
Otherwise, posting what symbols the IAOQ/GR02 values point at
is even better.

> I also forget to recall: this only occurs for incoming ethernet trafic(ie
> ssh, telnet, ftp, coming from an external server). The outgoing traffic
> works fine (I just do a telnet and a ftp from this server to an external
> one without crash)

Interesting. "outgoing" has both inbound and outbound data.
That doesn't sound like a tulip driver bug though it's certainly
possible.

Have you tried sending UDP (not TCP) traffic?
(Not sure how to do that...suggestions?)

You have any iptables (firewall) filtering enabled?

Maybe an issue with opening a new connection in the interrupt context?
My weak understanding of the network stack is that a TCP packet comes
in with SYN (on the interrupt stack) and gets queued for the bottom
half. The bottom half is invoked with interrupts re-enabled but
on the kernel stack in the "interrupt context". Did I get that right?

hth,
grant


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On Wed, Jan 15, 2003 at 05:14:47PM +0100, jsoe0708@tiscali.be wrote:
> and I got this time actual stack dump:
>  for builtin NIC:
> Stack Dump:
>  1ebd4780:  0004ff0f 54203230 38204345 35343a30
>  1ebd4770:  2031343a 101e0e7c 64204a61 31205765
>  1ebd4760:  2e0a2023 6d61696c 61766520 6f752068
>  1ebd4750:  75780a59 2f4c696e 20474e55 00075f10
>  1ebd4740:  0000001b 00069e0c 00069e0c 00000008
>  1ebd4730:  1ebd4588 101e27e4 1fe3ac80 00000000
> 
> Kernel addresses on the stack:
>  [<101e0e7c>]  [<101e27e4>]  [<101e25f8>]  [<101e0bec>]
>  [<1014b828>]  [<101de398>]  [<10104a6c>]  [<1013f4ac>]
>  [<10109f90>]  [<10109084>]  [<10109d4c>]  [<1013ff24>]
>  [<1013e3e4>]  [<1014ec28>]  [<101213f0>]

Randolph made the matching config/System.map available to me.

> Kernel Fault: Code=26 regs=1ebd4780 (Addr=00000082)

data page fault. looks like a null ptr dereference.
Above Kernel addresses point to:
0x101e0e7c opost+c8
0x101e27e4 write_chan+1ec
0x101e25f8 write_chan+0
0x101e0bec do_tty_write+134
0x1014b828 path_walk+14
0x101de398 tty_write+30
0x10104a6c handle_interruption+150
0x1013f4ac sys_write+a4
0x10109f90 syscall_exit+0
0x10109084 intr_check_sig+0
0x10109d4c child_return+0
0x1013ff24 chrdev_open+64
0x1013e3e4 dentry_open+f4
0x1014ec28 locate_fd+70
0x101213f0 it_real_fn+0

Seems like a jumble of stack traces.
Start with IOAQ (0x101e0dcc opost+18) and GR02 (rp, 0x101e27e4
write_chan+1ec) and look at source code to see which
kernel stack addresses are valid.

In any case, doesn't look like a problem with tulip driver.
I'll let someone else keep poking at this.

>   AND FOR External Nic:

> Kernel Fault: Code=6 regs=1ec3e080 (Addr=701e49c4)

This is bad. The kernel branched off into the weeds
or something. Could be the same problem though.

grant


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On Wed, Jan 15, 2003 at 10:56:20AM +0200, Nahkola Mikko wrote:
> What's the deal with the various HP-branded tulip-based NICs? Are they 
> expected to "just work" or what?

yes.

> I found one that sure doesn't, but then 
> again, but my kernel isn't actually new ... (2.4.18-32 packaged)

...a newer kernel would be more interesting.

> The card is the HP ANA-6911A/AUI (yes, it's a 10/100BT with coax and 
> AUI too), part# A3738-60001, and it _is_ found by the tulip driver, but 
> for some reason the driver claims that "no MII transceiver found",

This does sound like a bug (fixed) in the tulip driver relating to
MII initialization. But I'm surprised to see it manifest on a C240.

One should be aware that HP sold 4 different flavors of single port
100BT cards based on tulip chipsets. IIRC, they were:
o PCI "server" 
o GSC (card-mode Dino)
o PCI "workstation"
o PCI V-class only

(and an NIO 100BT also that I don't know anything about).

And each had a different HP-UX driver to go with it (btlan3-6).
Eventually all 4 drivers were merged into one but that's still fairly
recent history.

grant


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On Wed, 15 Jan 2003, Grant Grundler wrote:

> Have you tried sending UDP (not TCP) traffic?
> (Not sure how to do that...suggestions?)
> 
netcat: cat /something | nc -u host port

-- 
You were s'posed to laugh!


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On Wed, Jan 15, 2003 at 07:11:11PM -0700, ext Grant Grundler wrote:
> On Wed, Jan 15, 2003 at 10:56:20AM +0200, Nahkola Mikko wrote:

> > What's the deal with the various HP-branded tulip-based NICs? Are they 
> > expected to "just work" or what?

> yes.

Well, at least then there's hope in trying to get it to work ...

> > I found one that sure doesn't, but then 
> > again, but my kernel isn't actually new ... (2.4.18-32 packaged)

> ...a newer kernel would be more interesting.

Recommendations? For some reason I haven't managed to get a working 
kernel by building from source ... I do still have a 2.4.19-pa24 that I 
did get to boot even if it wasn't all that good. I mean, at least the .18 
has all the basic functionality that I tend to use.

Could be because I still have only the Debian-packaged tools. I haven't 
taken the time to run after the toolchain development ... didn't even get 
a newer modutils package yet.

Any ready-built package that I should try, or sould I just pull a newer 
(which version?) toolchain and compile from sources (which version?) - I 
haven't really paid enough attention to that stuff lately...

> > The card is the HP ANA-6911A/AUI (yes, it's a 10/100BT with coax and 
> > AUI too), part# A3738-60001, and it _is_ found by the tulip driver, but 
> > for some reason the driver claims that "no MII transceiver found",

> This does sound like a bug (fixed) in the tulip driver relating to
> MII initialization. But I'm surprised to see it manifest on a C240.

What do you mean, surprised to see it manifest on a C240? How so?

> One should be aware that HP sold 4 different flavors of single port
> 100BT cards based on tulip chipsets. IIRC, they were:
> o PCI "server" 
> o GSC (card-mode Dino)
> o PCI "workstation"
> o PCI V-class only
> (and an NIO 100BT also that I don't know anything about).

This might be the PCI "server" card. Not sure, partsurfer only knows an 
ANA-6911 without the A and AUI, and not much about that either... and I 
only see the 4-port cards usually. 

BTW, the NIO 100BT is an interesting beast. It (or the driver) is the 
only reason why one of our HP-UX boxes only gets about half an year max 
uptime usually ... and has other "interesting" "features". 

> And each had a different HP-UX driver to go with it (btlan3-6).
> Eventually all 4 drivers were merged into one but that's still fairly
> recent history.

Well, recent enough to predate all the entries that partsurfer showed 
about the ANA-6911. 

And it was still better than the deal with the EISA drivers - I mean, 
duh, I did get (the devices, not drivers) lan0 and btlan0 as different 
adapters once ... 

Anyway, here's some from lspci and dmesg. The adapter in question is the 
first one - it usurped eth0 and still didn't go anywhere - and as usual,
things got interesting, as the box is a NIS and NFS client... 
Notably it is a higher revision than the builtin adapter, and therefore I 
wouldn't expect to need the de4x5 driver.

--------------------
# lspci -vvx
01:01.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
        Subsystem: Hewlett-Packard Company: Unknown device 1067
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR+ FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255 (5000ns min, 10000ns max), cache line size 08
        Interrupt: pin A routed to IRQ 129
        Region 0: I/O ports at 1fd00 [size=128]
        Region 1: Memory at f2ffc000 (32-bit, non-prefetchable) [size=1K]
        Expansion ROM at f2f80000 [disabled] [size=256K]
00: 11 10 19 00 57 01 80 02 41 00 00 02 08 ff 00 00
10: 01 fd 00 00 00 c0 ff f2 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 3c 10 67 10
30: 00 00 f8 f2 00 00 00 00 00 00 00 00 01 01 14 28

01:13.0 SCSI storage controller: LSI Logic / Symbios Logic (formerly NCR) 53c875 (rev 04)
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR+ FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255 (4250ns min, 16000ns max), cache line size 08
        Interrupt: pin A routed to IRQ 131
        Region 0: I/O ports at 1fe00 [size=256]
        Region 1: Memory at f2ffd000 (32-bit, non-prefetchable) [size=256]
        Region 2: Memory at f2ffe000 (32-bit, non-prefetchable) [size=4K]
00: 00 10 0f 00 57 01 00 02 04 00 00 01 08 ff 00 00
10: 01 fe 00 00 00 d0 ff f2 00 e0 ff f2 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 03 01 11 40

01:14.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 30)
        Subsystem: Hewlett-Packard Company: Unknown device 104f
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR+ FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255 (5000ns min, 10000ns max), cache line size 08
        Interrupt: pin A routed to IRQ 128
        Region 0: I/O ports at 1ff00 [size=128]
        Region 1: Memory at f2fff000 (32-bit, non-prefetchable) [size=128]
        Expansion ROM at f2f80000 [disabled] [size=256K]
00: 11 10 19 00 57 01 80 02 30 00 00 02 08 ff 00 00
10: 01 ff 00 00 00 f0 ff f2 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 3c 10 4f 10
30: 00 00 f8 f2 00 00 00 00 00 00 00 00 00 01 14 28

# dmesg |grep -i tulip
Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
tulip0:  EEPROM default media type Autosense.
tulip0:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip0:  Index #1 - Media 10base2 (#1) described by a 21142 Serial PHY (2) block.
tulip0:  Index #2 - Media AUI (#2) described by a 21142 Serial PHY (2) block.
tulip0: ***WARNING***: No MII transceiver found!
eth0: Digital DS21143 Tulip rev 65 at 0x1fd00, 00:10:83:F7:84:33, IRQ 129.
tulip1: no phy info, aborting mtable build
tulip1:  MII transceiver #1 config 1000 status 782d advertising 0061.
eth1: Digital DS21143 Tulip rev 48 at 0x1ff00, 00:60:B0:D0:1B:9F, IRQ 128.

# uname -mrspv
Linux 2.4.18-32 #1 Sat Mar 30 18:26:22 MST 2002 parisc unknown
------------------


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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...
>
>Or make them available via http or ftp.

The best idea I had, was to put those stuff on a testdrive server but Ran=
dolph
do not have access.

>Otherwise, posting what symbols the IAOQ/GR02 values point at
>is even better.
>
>> I also forget to recall: this only occurs for incoming ethernet trafic=
(ie
>> ssh, telnet, ftp, coming from an external server). The outgoing traffi=
c
>> works fine (I just do a telnet and a ftp from this server to an extern=
al
>> one without crash)
>
>Interesting. "outgoing" has both inbound and outbound data.
>That doesn't sound like a tulip driver bug though it's certainly
>possible.
>
>Have you tried sending UDP (not TCP) traffic?
>(Not sure how to do that...suggestions?)

Well as per Jeremy suggestion I do some following test and obtain strange=

results:

from the 'server' runing gcc32 kernel
cat /something | nc -u host 23
# no problem
cat /samething | nc host 23
# no problem
telnet host
...
# no problem

OTC from an external server to this gcc32 kernel server (which I call pal=
x)

cat /something | nc -u palx 23
# no problem

cat /samething | nc palx 23
# ??? no problem and that is strange because I well address the same 'tel=
net'
port

telnet palx

immediate crash?

so I try to strace telnetd and make it leasen on a port 6800
nohup /usr/sbin/in.telnetd -debug 6800 &

palx2000:~# strace -p  324
poll([{fd=3D3, events=3DPOLLIN, revents=3DPOLLIN}], 1, -1) =3D 1
accept(3, 0, NULL)                      =3D 4
dup2(4, 0)                              =3D 0
close(4)                                =3D 0
close(3)                                =3D 0
lock(0, {sa_family=3DAF_INET, sin_port=3Dhtons(1187), sin_addr=3Dinet_add=
r("172.16.248.169")},
[16]) =3D 0
setsockopt(0, SOL_SOCKET, SO_KEEPALIVE, [1], 4) =3D 0
setsockopt(0, SOL_IP, IP_TOS, [16], 4)  =3D 0
open("/dev/ptmx", O_RDWR)               =3D 3
statfs("/dev/pts", {f_type=3D"DEVPTS_SUPER_MAGIC", f_bsize=3D1024, f_bloc=
ks=3D0,
f_bfree=3D0, f_files=3D0, f_ffree=3D0, f_namelen=3D255}) =3D 0
ioctl(3, 0x40245410, {B38400 opost isig icanon echo ...}) =3D 0
ioctl(3, 0x40045430, [0])               =3D 0
stat64("/dev/pts/0", {st_mode=3D0, st_size=3D5, ...}) =3D 0
statfs("/dev/pts/0", {f_type=3D"DEVPTS_SUPER_MAGIC", f_bsize=3D1024, f_bl=
ocks=3D0,
f_bfree=3D0, f_files=3D0, f_ffree=3D0, f_namelen=3D255}) =3D 0
ioctl(3, 0x80045431, [0])               =3D 0
ioctl(3, 0x40245410, {B38400 opost isig icanon echo ...}) =3D 0
ioctl(3, 0x40045430, [0])               =3D 0
stat64("/dev/pts/0", {st_mode=3D0, st_size=3D5, ...}) =3D 0
open("/dev/pts/0", O_RDWR|O_NOCTTY)     =3D 4
ioctl(4, 0x40245410, {B38400 opost isig icanon echo ...}) =3D 0
readlink("/proc/self/fd/4", "/dev/pts/0", 4095) =3D 10
socket(PF_UNIX, SOCK_STREAM, 0)         =3D 5
connect(5, {sa_family=3DAF_UNIX, path=3D"/var/run/.nscd_socket"}, 110) =3D=
 -1
ENOENT (No such file or directory)
close(5)                                =3D 0
open("/etc/nsswitch.conf", O_RDONLY)    =3D 5
fstat64(5, {st_mode=3D0, st_size=3D0, ...}) =3D 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
=3D 0x40017000
read(5, "# /etc/nsswitch.conf\n#\n# Example"..., 4096) =3D 465
read(5, "", 4096)                       =3D 0
close(5)                                =3D 0
munmap(0x40017000, 4096)                =3D 0
open("/etc/ld.so.cache", O_RDONLY)      =3D 5
fstat64(5, {st_mode=3D0, st_size=3D0, ...}) =3D 0
mmap(NULL, 25974, PROT_READ, MAP_PRIVATE, 5, 0) =3D 0x40017000
close(5)                                =3D 0
open("/lib/libnss_files.so.2", O_RDONLY) =3D 5
read(5, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0(\234"...,
1024) =3D 1024
fstat64(5, {st_mode=3D0, st_size=3D0, ...}) =3D 0
mmap(NULL, 116188, PROT_READ|PROT_EXEC, MAP_PRIVATE, 5, 0) =3D 0x40196000=

mprotect(0x401a2000, 67036, PROT_NONE)  =3D 0
mmap(0x401b1000, 8192, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FI=
XED,
5, 0xb000) =3D 0x401b1000
close(5)                                =3D 0
munmap(0x40017000, 25974)               =3D 0
gettimeofday({1042712090, 356267}, NULL) =3D 0
getpid()                                =3D 324
open("/etc/resolv.conf", O_RDONLY)      =3D 5
fstat64(5, {st_mode=3D0, st_size=3D0, ...}) =3D 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
=3D 0x40017000
read(5, "", 4096)                       =3D 0
close(5)                                =3D 0
munmap(0x40017000, 4096)                =3D 0
newuname({sys=3D"Linux", node=3D"palx2000", ...}) =3D 0
open("/etc/host.conf", O_RDONLY)        =3D 5
fstat64(5, {st_mode=3D0, st_size=3D0, ...}) =3D 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
=3D 0x40017000
read(5, "order hosts,bind\nmulti on\n", 4096) =3D 26
read(5, "", 4096)                       =3D 0
close(5)                                =3D 0
munmap(0x40017000, 4096)                =3D 0
open("/etc/hosts", O_RDONLY)            =3D 5
fcntl64(5, F_GETFD)                     =3D 0
fcntl64(5, F_SETFD, FD_CLOEXEC)         =3D 0
fstat64(5, {st_mode=3D0, st_size=3D0, ...}) =3D 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
=3D 0x40017000
read(5, "127.0.0.1\tlocalhost\n172.16.248.1"..., 4096) =3D 484
close(5)                                =3D 0
munmap(0x40017000, 4096)                =3D 0
newuname({sys=3D"Linux", node=3D"palx2000", ...}) =3D 0
open("/etc/hosts", O_RDONLY)            =3D 5
fcntl64(5, F_GETFD)                     =3D 0
fcntl64(5, F_SETFD, FD_CLOEXEC)         =3D 0
fstat64(5, {st_mode=3D0, st_size=3D0, ...}) =3D 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
=3D 0x40017000
read(5, "127.0.0.1\tlocalhost\n172.16.248.1"..., 4096) =3D 484
read(5, "", 4096)                       =3D 0
close(5)                                =3D 0
munmap(0x40017000, 4096)                =3D 0
open("/etc/hosts", O_RDONLY)            =3D 5
fcntl64(5, F_GETFD)                     =3D 0
fcntl64(5, F_SETFD, FD_CLOEXEC)         =3D 0
fstat64(5, {st_mode=3D0, st_size=3D0, ...}) =3D 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
=3D 0x40017000
read(5, "127.0.0.1\tlocalhost\n172.16.248.1"..., 4096) =3D 484
read(5, "", 4096)                       =3D 0
close(5)                                =3D 0
munmap(0x40017000, 4096)                =3D 0
socket(PF_UNIX, SOCK_STREAM, 0)         =3D 5
connect(5, {sa_family=3DAF_UNIX, path=3D"/var/run/.nscd_socket"}, 110) =3D=
 -1
ENOENT (No such file or directory)
close(5)                                =3D 0
open("/etc/hosts", O_RDONLY)            =3D 5
fcntl64(5, F_GETFD)                     =3D 0
fcntl64(5, F_SETFD, FD_CLOEXEC)         =3D 0
fstat64(5, {st_mode=3D0, st_size=3D0, ...}) =3D 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
=3D 0x40017000
read(5, "127.0.0.1\tlocalhost\n172.16.248.1"..., 4096) =3D 484
close(5)                                =3D 0
munmap(0x40017000, 4096)                =3D 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
=3D 0x40017000
writev(0, [{"\377\375\30", 3}, {"\377\375 ", 3}, {"\377\375#", 3}, {"\377=
\375\'",
3}], 4) =3D 12
read(0, "#!/usr/bin/env ruby \n\nrequire \'g"..., 8192) =3D 4236
read(0, "", 8192)                       =3D 0
brk(0)                                  =3D 0x35000
brk(0x37000)                            =3D 0x37000
time([1042712118])                      =3D 1042712118
brk(0)                                  =3D 0x37000
brk(0x38000)                            =3D 0x38000
open("/etc/localtime", O_RDONLY)        =3D 5
fstat64(5, {st_mode=3D0, st_size=3D0, ...}) =3D 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
=3D 0x40019000
read(5, "TZif\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\n\0\0\0\n\0"..., 4096=
)
=3D 1067
close(5)                                =3D 0
munmap(0x40019000, 4096)                =3D 0
getpid()                                =3D 324
rt_sigaction(SIGPIPE, {0x4018fa3a, [], 0}, {SIG_DFL}, 8) =3D 0
socket(PF_UNIX, SOCK_DGRAM, 0)          =3D 5
fcntl64(5, F_SETFD, FD_CLOEXEC)         =3D 0
connect(5, {sa_family=3DAF_UNIX, path=3D"/dev/log"}, 16) =3D 0
send(5, "<30>Jan 16 11:15:18 telnetd[324]"..., 57, 0) =3D 57
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, 8) =3D 0
munmap(0x40017000, 8192)                =3D 0
exit(1)                                 =3D ?


palx2000:~# strace -p  324 palx2000:~# ps -ef | grep telnetdpalx2000:~#
lrt   nohup /usr/sbin/in.telnetd -debug 6800 &
[1] 332
palx2000:~# nohup: appending output to `nohup.out'
nohup /usr/sbin/in.telnetd -debug 6800 &palx2000:~# more nohup.out palx20=
00:~#
strace -p  324 palx2000:~# ps -ef | grep telnetd
root       332   285  0 11:15 ttyS0    00:00:00 /usr/sbin/in.telnetd -deb=
ug
6800
root       336   285  0 11:15 ttyS0    00:00:00 grep telnetd
palx2000:~# ps -ef | grep telnetdpalx2000:~# nohup /usr/sbin/in.telnetd
-debug 6800 &palx2000:~# more nohup.out palx2000:~# strace -p  324
       332 2>&1 | tee /var/logs/StraceTelnetdDebug.doc
poll([{fd=3D3, events=3DPOLLIN, revents=3DPOLLIN}], 1, -1) =3D 1
accept(3, 0, NULL)                      =3D 4
dup2(4, 0)                              =3D 0
close(4)                                =3D 0
close(3)                                =3D 0
lock(0, {sa_family=3DAF_INET, sin_port=3Dhtons(1188), sin_addr=3Dinet_add=
r("172.16.248.169")},
[16]) =3D 0
setsockopt(0, SOL_S
Stack Dump:
 1c6a1b80:  0004ff0e 00000000 00000000 00000000
 1c6a1b70:  00000000 00000000 00000000 00000000
 1c6a1b60:  00000000 00000000 00000000 00000001
 1c6a1b50:  143133fc 00000001 00000003 14313340
 1c6a1b40:  5455509e 00000000 00000000 00000000
 1c6a1b30:  00000000 102bc794 00000000 1811fb60

Kernel addresses on the stack:
 [<102bc794>]  [<10299a38>]  [<102bf3fc>]  [<102c6b90>]
 [<102c38dc>]  [<10126298>]  [<10125cf4>]  [<1012256c>]
 [<1012241c>]  [<10122154>]  [<10109078>]  [<101e2a10>]
 [<101e2a0c>]  [<1013ff24>]  [<1013e3e4>]  [<1014ec28>]
 [<101e49c4>]  [<101e1678>]  [<101e1710>]  [<101e1710>]
 [<101e49c4>]  [<101e07d8>]  [<101e0e7c>]  [<101e11c8>]
 [<101e2b28>]  [<101e1710>]  [<101e49c4>]  [<101e07d8>]
 [<101e0e7c>]  [<101e11c8>]  [<101e2b28>]  [<101e1710>]
 [<101e49c4>]  [<101e07d8>]  [<101e0e7c>]  [<101e11c8>]
 [<101e2b28>]  [<101e1710>]  [<101e49c4>]  [<101e07d8>]
 [<101e0e7c>]  [<101e11c8>]  [<101e2b28>]  [<101e1710>]
 [<101e49c4>]  [<101e07d8>]  [<101e0e7c>]  [<101e11c8>]
 [<101e2b28>]  [<101e1710>]  [<101e49c4>]  [<101e07d8>]
 [<101e0e7c>]  [<101e11c8>]  [<101e2b28>]  [<101e1710>]
 [<101e49c4>]  [<101e07d8>]  [<101e0e7c>]  [<101e11c8>]
 [<101e2b28>]  [<101e1710>]  [<101e49c4>]  [<101e07d8>]
 [<101e0e7c>]  [<101e11c8>]  [<101e2b28>]  [<101e1710>]
 [<101e49c4>]  [<101e07d8>]  [<101e0e7c>]

Kernel Fault: Code=3D26 regs=3D1c6a1b80 (Addr=3D00000001)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110 Not tainted
r00-03  00000000 10340810 10299a38 1c6a1b00
r04-07  19ba8810 103a58b4 1f37586c 00000001
r08-11  10340bc0 00000001 0000000f 10342810
r12-15  103fc010 00000000 0000b71b 00035054
r16-19  1c6a1600 faf00208 000020a8 19ba8810
r20-23  00000000 00000001 10299a08 00000005
r24-27  00000001 00000001 1f37586c 10330010
r28-31  00000000 00000000 1c6a1b80 102bf3fc
sr0-3   00000000 00000383 00000000 00000383
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1011a73c 1011a740
 IIR: 0ea01093    ISR: 00000000  IOR: 00000001
 CPU:        0   CR30: 19a90000 CR31: 103e8000
 ORIG_R28: 00000000

For which crash dump_analyser.sh give me:
IAOQ =3D 1011a73c
Func: __wake_up, Off: 64, Addr: 0x1011a73c
1011a730:	34 28 07 60 	ldo 3b0(r1),r8
1011a734:	0c 99 10 95 	ldw -4(sr0,r4),r21
1011a738:	34 14 00 00 	ldi 0,r20
1011a73c:	0e a0 10 93 	ldw 0(sr0,r21),r19
1011a77c:	88 86 3f 6f 	cmpb,<>,n r6,r4,1011a738 <__wake_up+0x60>

GR0 =3D 00000000

GR1 =3D 10340810
Func: syscall_names, Off: 39c, Addr: 0x10340810

GR2 =3D 10299a38
Func: sock_def_readable, Off: 30, Addr: 0x10299a38
10299a14:	86 80 20 38 	cmpib,=3D 0,r20,10299a38 <sock_def_readable+0x30>
10299a28:	82 74 20 10 	cmpb,=3D r20,r19,10299a38 <sock_def_readable+0x30>=

10299a30:	e8 4f 04 e8 	b,l 102b7cac <tcp_recvmsg+0xa3c>,rp
10299a34:	08 00 02 40 	nop
10299a38:	48 73 05 a8 	ldw 2d4(r3),r19
10299a3c:	86 60 20 2a 	cmpib,=3D,n 0,r19,10299a58 <sock_def_readable+0x50=
>

GR3 =3D 1c6a1b00

GR4 =3D 19ba8810

GR5 =3D 103a58b4
Func: identify_ramdisk_image, Off: 78, Addr: 0x103a58b4
103a58b0:	08 04 02 58 	copy r4,r24
103a58b4:	0c 60 10 14 	ldb 0(sr0,r3),r20
103a58b8:	34 13 00 3e 	ldi 1f,r19
103a58bc:	82 93 22 58 	cmpb,=3D r19,r20,103a59f0 <identify_ramdisk_image+=
0x1b4>

GR6 =3D 1f37586c

GR7 =3D 00000001

GR8 =3D 10340bc0
Func: runqueue_head, Off: 0, Addr: 0x10340bc0

GR9 =3D 00000001

GR10 =3D 0000000f

GR11 =3D 10342810
Func: kstat, Off: 1bf8, Addr: 0x10342810

GR12 =3D 103fc010
Func: tv1, Off: 358, Addr: 0x103fc010

GR13 =3D 00000000

GR14 =3D 0000b71b

GR15 =3D 00035054

GR16 =3D 1c6a1600

GR17 =3D faf00208

GR18 =3D 000020a8

GR19 =3D 19ba8810

GR20 =3D 00000000

GR21 =3D 00000001

GR22 =3D 10299a08
Func: sock_def_readable, Off: 0, Addr: 0x10299a08
10299a00:	34 42 3f d9 	ldo -14(rp),rp
10299a04:	08 00 02 40 	nop
10299a08 <sock_def_readable>:
10299a08:	6b c2 3f d9 	stw rp,-14(sp)
10299a0c:	6f c3 00 80 	stw,ma r3,40(sp)

GR23 =3D 00000005

GR24 =3D 00000001

GR25 =3D 00000001

GR26 =3D 1f37586c

GR27 =3D 10330010
Func: $global$, Off: 0, Addr: 0x10330010

GR28 =3D 00000000

GR29 =3D 00000000

GR30 =3D 1c6a1b80

GR31 =3D 102bf3fc
Func: tcp_rcv_established, Off: 6bc, Addr: 0x102bf3fc
102bf3f0:	34 19 00 00 	ldi 0,r25
102bf3f4:	e6 c0 20 00 	be,l 0(sr4,r22),%sr0,%r31
102bf3f8:	08 1f 02 42 	copy r31,rp
102bf3fc:	e8 1f 15 55 	b,l 102beeac <tcp_rcv_established+0x16c>,r0

(nothing change for kernel)

That does not help me more but may be somebody else?



>
>You have any iptables (firewall) filtering enabled?
>

I check and there well iptables foreseen as module bu not loaded?

>Maybe an issue with opening a new connection in the interrupt context?
>My weak understanding of the network stack is that a TCP packet comes
>in with SYN (on the interrupt stack) and gets queued for the bottom
>half. The bottom half is invoked with interrupts re-enabled but
>on the kernel stack in the "interrupt context". Did I get that right?
>
IIRC Carlos suspect a tty problem?

hth,
Joel



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Hi Lads

I need a service manual for an N4000 (440MHz rev) server. The public manual on the docs.hp.com website is a piece of rubbish (I think it might be the modern equivalent of the "no user servicable parts inside" label).

I could not find the info I need on ITRC. Does anybody know where I can get a copy of the service manual?

Regards,

Gavin



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Hi all,

Trying to rebluid a graphical library on my hppa linux b180 still running=

gcc-3.0 as default, I got following message:

/usr/bin/ld -r -o .libs/libTKernel.la-478.o .libs/Units_UtsSequence_0.o
.libs/libTKernel.la-477.o
gcc -shared .libs/libTKernel.la-478.o  -ldl -lieee -lm  -Wl,-soname -Wl,l=
ibTKernel.so.0
-o .libs/libTKernel.so.0.0.0
/usr/bin/ld: .libs/libTKernel.la-478.o(.text.1+0x37798): cannot reach 000=
00387__ZNSolsEPFRSoS_E+0,
recompile with -ffunction-sections
/usr/bin/ld: .libs/libTKernel.la-478.o(.text.1+0x37798): cannot handle R_=
PARISC_PCREL17F
for std::ostream::operator<<(std::ostream& (*)(std::ostream&))
/usr/bin/ld: final link failed: Bad value
collect2: ld returned 1 exit status
make[3]: *** [libTKernel.la] Error 1
make[3]: Leaving directory `/CAD/OpenCascade/build/src/TKernel'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/CAD/OpenCascade/build/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/CAD/OpenCascade/build'
make: *** [all] Error 2

As it is a very long job (more then 12h) what would it be better:
1) simply following advise: "recompile with -ffunction-sections"
2) upgrade directly to gcc-3.2

Thanks for help,
    Joel


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On Wed, 15 Jan 2003, Grant Grundler wrote:

> On Wed, Jan 15, 2003 at 05:14:47PM +0100, jsoe0708@tiscali.be wrote:
> > >There are a lot of differences (do you want it I do not think it will be
> > >usefull)
> > >
> > >> or a default .config if that's closer?
> > >
> > >It will have to wait tommorrow (sorry)
>
> np. I also want you to look at something that is known
> to work before going too far.
>
> > I now add CONFIG_TULIP_MMIO=yes
>
> yes. that's what I meant.
>
> > (Randolph: Do you want I send you those new material: kernel, system.map,
> > ...?)
>
> Or make them available via http or ftp.
> Otherwise, posting what symbols the IAOQ/GR02 values point at
> is even better.
>
> > I also forget to recall: this only occurs for incoming ethernet trafic(ie
> > ssh, telnet, ftp, coming from an external server). The outgoing traffic
> > works fine (I just do a telnet and a ftp from this server to an external
> > one without crash)
>
> Interesting. "outgoing" has both inbound and outbound data.
> That doesn't sound like a tulip driver bug though it's certainly
> possible.

This is EXACTLY what happened to me when I conpiled a kernel for my C240
(just using the built-in network card) with a (buggy) gcc-3.2. Incoming
network traffic will crash the system, outgoing will work.

gcc-3.2 obviously miscompiles parts of the network code of the kernel,
whereas gcc-3.0 (with the very same kernel, same config) produced a
working kernel. I can't remember exactly what kernel/config and compiler,
but I sent the details to the list some months ago (I cann look them up
if somebody is interested).

Perhaps this helps to narrow down which part (driver or networking code)
of the kernel is affected by the miscompilation.



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Xref: news.gmane.org gmane.linux.ports.parisc:17432

Hi,
>
>This is EXACTLY what happened to me when I conpiled a kernel for my C240=

>(just using the built-in network card) with a (buggy) gcc-3.2. Incoming
>network traffic will crash the system, outgoing will work.
>
>gcc-3.2 obviously miscompiles parts of the network code of the kernel,
>whereas gcc-3.0 (with the very same kernel, same config) produced a
>working kernel. I can't remember exactly what kernel/config and compiler=
,
>but I sent the details to the list some months ago (I cann look them up
>if somebody is interested).
>
>Perhaps this helps to narrow down which part (driver or networking code)=

>of the kernel is affected by the miscompilation.
>
May be still have to do a test: recompile the kernel with config file men=
tioned
my Grant earlier (the 2.4.20-pa14 for c3k). Do not know if it can help us=

more? I will try and let inform.

Thanks,
    Joel

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>May be still have to do a test: recompile the kernel with config file me=
ntioned
>my Grant earlier (the 2.4.20-pa14 for c3k). Do not know if it can help
us
>more? I will try and let inform.
>
:^(( Also crash.

(I do not have any other supported NIC to test more :( )

Joel


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Is there anything similar to Ghost from Symantec for PA Risc systems?=20
I would like to create an image of my hard disk to speed recovery
times etc.=20

I know of HP-UX ignite, not sure if it can be used for PA Risc
tough...


Thanks



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On Thu, Jan 16, 2003 at 08:57:19AM -0700, alaskan@telusplanet.net wrote:
> Is there anything similar to Ghost from Symantec for PA Risc systems? 
> I would like to create an image of my hard disk to speed recovery
> times etc. 
> 
> I know of HP-UX ignite, not sure if it can be used for PA Risc
> tough...

I used dd to back up my HP/UX partition from Linux :-)
 
-- 

patrick



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> /usr/bin/ld: .libs/libTKernel.la-478.o(.text.1+0x37798): cannot reach 00000387__ZNSolsEPFRSoS_E+0,
> recompile with -ffunction-sections
> /usr/bin/ld: .libs/libTKernel.la-478.o(.text.1+0x37798): cannot handle R_PARISC_PCREL17F

> As it is a very long job (more then 12h) what would it be better:
> 1) simply following advise: "recompile with -ffunction-sections"

Compiling with -ffunction-sections will not fix this problem.  This is a
problem with the linker and the part of the error message about recompiling
with -ffunction-sections is bogus.  The clue is the offset value which
is within limits.  You have hit a compilation with many small functions
and the stub group section has overflowed.

Before you trash the build, try using the ld option --stub-group-size
to set the maximum size of a group of input sections that can be handled
by one stub section.  If the link is done with gcc, add something like
"-Wl,--stub-group-size,-225000" to LDFLAGS.  You want the stub group
size as large as possible but it can't be larger than 240000.  Negative
values cause stubs to be located before their branches.  Positive
stub group sizes allows to two groups of input sections, one before
and one after each stub section (ld --help).

GCC uses pc relative branches for calls if the distance to the beginning
of the translation unit is less than 240000.  It doesn't know how big
the translation unit is at the time this decision is made, so using
positive stub group values may cause problems.

There was a bug in GCC's distance calculation under linux.  This is
fixed in 3.2.2 and later.  3.2.2 is not released yet.  3.3 is coming
soon (Feb. 15?).

> 2) upgrade directly to gcc-3.2

Won't fix the above.

If you using a PA 2.0 machine, you could use the -mpa-risc-2-0 option.
This increases the branch range to 22 bits and the maximum size of the
stub group section.

I would recommend using 3.3 for C++ builds but this is for other
reasons.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> I used dd to back up my HP/UX partition from Linux :-)
> -- 
> patrick

SystemImager?

c.



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I've ported (but not yet tested) systemimager to parisc-linux.
all the bits are in cvs at http://sf.net/projects/systemimager if anyone
wants to test.  there will be a few things that will need debugging, but
i'm happy to iterate over irc w/ someone until it goes.


On Thu, Jan 16, 2003 at 08:57:19AM -0700, alaskan@telusplanet.net wrote:
> Is there anything similar to Ghost from Symantec for PA Risc systems? 
> I would like to create an image of my hard disk to speed recovery
> times etc. 
> 
> I know of HP-UX ignite, not sure if it can be used for PA Risc
> tough...
> 
> 
> Thanks
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

-- 
---------------------------
dann frazier
Hewlett-Packard
Linux Systems Division
dannf@hp.com
(970) 898-0800


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> I've ported (but not yet tested) systemimager to parisc-linux.
> all the bits are in cvs at http://sf.net/projects/systemimager if anyone
> wants to test.  there will be a few things that will need debugging, but
> i'm happy to iterate over irc w/ someone until it goes.

All I know is that the 128 node IA64 cluster rolled out with
SystemImager in a single day. And that was because you need to manually
create all the silly enablement/tool/fat partitions :}

I think I'm going to give SystemImager a shot with my PA cluster, once I
get free time :}

c.



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Gavin,
Unfortunatly from what I am told, you can't....UNLESS you pay for it.  Me as a Customer Engineer, are not allowed to give customers the "Service" manuals without them paying for them.  If you have hardware questions, you can post them here and as long as they aren't HP proprietary subjects I or others here can answer them.  Besides the N Class "Service" manual changes constantly as new hardware is released.  The N Class currently has a choice of 3 different system boards, 2 different GSP models, 2 different processor support modules, and 5 different processors.
derek
 Gavin Hubbard <ghub005@xtra.co.nz> wrote:Hi Lads

I need a service manual for an N4000 (440MHz rev) server. The public manual on the docs.hp.com website is a piece of rubbish (I think it might be the modern equivalent of the "no user servicable parts inside" label).

I could not find the info I need on ITRC. Does anybody know where I can get a copy of the service manual?

Regards,

Gavin

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<P>Gavin,
<P>Unfortunatly from what I am told, you can't....UNLESS you pay for it.&nbsp;&nbsp;Me as a Customer Engineer, are not allowed to give customers the "Service" manuals without them paying for them.&nbsp; If you have&nbsp;hardware questions, you can post them here and as long as they aren't HP proprietary subjects I or others here can answer them.&nbsp; Besides the N Class "Service" manual changes constantly as new hardware is released.&nbsp; The N Class currently has a choice of 3 different system boards, 2 different GSP models, 2 different processor support modules, and 5 different processors.
<P>derek
<P>&nbsp;<B><I>Gavin Hubbard &lt;ghub005@xtra.co.nz&gt;</I></B> wrote:
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Hi Lads<BR><BR>I need a service manual for an N4000 (440MHz rev) server. The public manual on the docs.hp.com website is a piece of rubbish (I think it might be the modern equivalent of the "no user servicable parts inside" label).<BR><BR>I could not find the info I need on ITRC. Does anybody know where I can get a copy of the service manual?<BR><BR>Regards,<BR><BR>Gavin<BR><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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Hi Dave,

>
>> /usr/bin/ld: .libs/libTKernel.la-478.o(.text.1+0x37798): cannot reach
00000387__ZNSolsEPFRSoS_E+0,
>> recompile with -ffunction-sections
>> /usr/bin/ld: .libs/libTKernel.la-478.o(.text.1+0x37798): cannot handle=

>R_PARISC_PCREL17F
>
>> As it is a very long job (more then 12h) what would it be better:
>> 1) simply following advise: "recompile with -ffunction-sections"
>
>Compiling with -ffunction-sections will not fix this problem.  This is
a
>problem with the linker and the part of the error message about recompil=
ing
>with -ffunction-sections is bogus.  The clue is the offset value which
>is within limits.  You have hit a compilation with many small functions
>and the stub group section has overflowed.
>
>Before you trash the build, try using the ld option --stub-group-size
>to set the maximum size of a group of input sections that can be handled=

>by one stub section.  If the link is done with gcc, add something like
>"-Wl,--stub-group-size,-225000" to LDFLAGS.  You want the stub group
>size as large as possible but it can't be larger than 240000.  Negative
>values cause stubs to be located before their branches.  Positive
>stub group sizes allows to two groups of input sections, one before
>and one after each stub section (ld --help).
>
>GCC uses pc relative branches for calls if the distance to the beginning=

>of the translation unit is less than 240000.  It doesn't know how big
>the translation unit is at the time this decision is made, so using
>positive stub group values may cause problems.
>
>There was a bug in GCC's distance calculation under linux.  This is
>fixed in 3.2.2 and later.  3.2.2 is not released yet.  3.3 is coming
>soon (Feb. 15?).
>

Thanks for explanation, clear ;)

>> 2) upgrade directly to gcc-3.2
>
>Won't fix the above.
>
>If you using a PA 2.0 machine, you could use the -mpa-risc-2-0 option.

No :(

>This increases the branch range to 22 bits and the maximum size of the
>stub group section.
>
>I would recommend using 3.3 for C++ builds but this is for other
>reasons.
>
gcc-snapshot may be (already install) or tool chain (it failled for me la=
st
time but I can come back to this before?)

Thanks,
    Joel



*********************************************
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On Thu, Jan 16, 2003 at 11:30:28AM +0200, Nahkola Mikko wrote:
> > ...a newer kernel would be more interesting.
> 
> Recommendations?
...
> Any ready-built package that I should try,
...

Ideally, our CVS kernels: 32-2.4.20-pa21.tar.gz
autobuilt 32-bit kernels are on ftp.parisc-linux.org/kernels/32/ 
I can't say if they work "just fine" on C240 or not though
since I don't test that.

> > This does sound like a bug (fixed) in the tulip driver relating to
> > MII initialization. But I'm surprised to see it manifest on a C240.
> 
> What do you mean, surprised to see it manifest on a C240? How so?

The original problem seemed to be a CPU timing problem where the PHY reset
was not recovering faster than the CPU could pound down the next accesses
to the MII. I've only seen this on problem systems with 550Mhz or
faster CPUs (both parisc and ia64).

The fix is to follow the 802.x spec which describes the MII register
set and how to properly do a MII reset (involves some polling).
Details should be in the parisc-linux mail archive or lkml.

> BTW, the NIO 100BT is an interesting beast. It (or the driver) is the 
> only reason why one of our HP-UX boxes only gets about half an year max 
> uptime usually ... and has other "interesting" "features". 

If you have extras of those, I know someone who wants one.

> Notably it is a higher revision than the builtin adapter, and therefore I 
> wouldn't expect to need the de4x5 driver.

I don't either. I thought we had the tulip cards working just fine.

cheers,
grant


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On Thu, Jan 16, 2003 at 11:54:27PM -0700, ext Grant Grundler wrote:
> On Thu, Jan 16, 2003 at 11:30:28AM +0200, Nahkola Mikko wrote:

> > > ...a newer kernel would be more interesting.
> > Recommendations? Any ready-built package that I should try,

> Ideally, our CVS kernels: 32-2.4.20-pa21.tar.gz
> autobuilt 32-bit kernels are on ftp.parisc-linux.org/kernels/32/ 
> I can't say if they work "just fine" on C240 or not though
> since I don't test that.

Installed 32-2.4.20-pa20 as the -21 only had the Config, no vmlinux or 
System.map there. 

> > > This does sound like a bug (fixed) in the tulip driver relating to
> > > MII initialization. But I'm surprised to see it manifest on a C240.
> > What do you mean, surprised to see it manifest on a C240? How so?

> The original problem seemed to be a CPU timing problem where the PHY reset
> was not recovering faster than the CPU could pound down the next accesses

> The fix is to follow the 802.x spec which describes the MII register
> set and how to properly do a MII reset (involves some polling).
> Details should be in the parisc-linux mail archive or lkml.

Well, at any rate, it doesn't complain about tulip0/eth0 anymore ... but 
it still doesn't pass any traffic or obey mii-tool. 
"10 Mbit, half duplex, autonegotiation complete, remote fault, link ok" 
... even after "mii-tool -F 100baseTx-HD eth0".

Looks better now anyway ;-/

> > BTW, the NIO 100BT is an interesting beast. It (or the driver) is the 
> > only reason why one of our HP-UX boxes only gets about half an year max 
> > uptime usually ... and has other "interesting" "features". 

> If you have extras of those, I know someone who wants one.

No extras, sorry. They're in real use. (don't tell me that's a bad choice 
- well, if you know of something else to get a H to do 100BT ...)

> > Notably it is a higher revision than the builtin adapter, and therefore I 
> > wouldn't expect to need the de4x5 driver.
> I don't either. I thought we had the tulip cards working just fine.

Well, the builtin adapter isn't doing "just fine" either, but that may be 
firmware-related - when set to 100-HD with mii-tool it goes to 100-FD or 
some such that the hub (yes) doesn't like at all. I suppose I should get 
around to updating the box's firmware. 
 
Oh well, it autonegotiates to 10HD and that works. The other end is a HP 
J3294A (ProCurve 10/100 hub) that obivously can't do anything FD ... and 
yes, I did use other stuff to test the 6911 too. 



And additionally, there's some (non-network-related?) stuff in dmesg that 
I don't remember seeing before, "HP SDC: Transaction add failed: 
transaction already queued?" Is that the HIL stub or something? Should I 
pursue that too?


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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Matthew Wilcox said:
> On Wed, Jan 15, 2003 at 12:21:23PM +0800, Andrew Shugg wrote:
> > I was trawling through ftp.parisc-linux.org/cvs looking for a tarball of
> > the linux-2.5 tree and couldn't see anything, apart from a /cvs/2.5
> > directory (which is currently empty).
> 
> Those aren't currently being generated (AFAIK).  What _is_ being generated
> are the patches against upstream: http://ftp.parisc-linux.org/2.5/kernel-src/

Ah yes, I saw those.  But then I'll need to make a vanilla Linus tree,
and I am lazy.  I mean, streamlined and efficient.  =)

> > Is there enough disk space to do a linux-2.5 tarball for the FTP server?
> 
> Yes, certainly.  Do you still want that, given the existance of these
> patches?

It'd be nice.  Yes, I'd like it, if it's not a problem for anyone.
Otherwise I'll try the above method, or slowly drag it out of CVS.  I'm
assuming that occasional linux-2.5 tarballs might be useful for people
other than me of course ...

> > Also the /cvs directory contains a few files that look like stuff-ups
> > from the CVS tarball roller: linux-.tar.gz and patch-.diff.gz ...
> 
> I can see them... but I can also see the CVS scripts are still running.
> Possibly they'll be renamed later.

Doesn't seem to be; they're empty files (though > 0 bytes from gzip).  I
think the checkout script is using an empty variable, eg linux-$i.tar.gz
or whatever.  The 'latest' softlinks are to these empty files.  I can't
see any likely-looking tarball-rolling scripts in CVSROOT/ so I'm unable
to investigate further.

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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Subject: [parisc-linux] [PATCH][2.5] smp_call_function_on_cpu for PARISC
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This patch adds an smp_call_function which accepts a cpu bitmask instead 
of only doing a broadcast. One thing though, where is hweight64 on parisc?

	Zwane

Index: linux-2.5.58-cpu_hotplug/arch/parisc/kernel/smp.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.58/arch/parisc/kernel/smp.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 smp.c
--- linux-2.5.58-cpu_hotplug/arch/parisc/kernel/smp.c	14 Jan 2003 07:00:30 -0000	1.1.1.1
+++ linux-2.5.58-cpu_hotplug/arch/parisc/kernel/smp.c	17 Jan 2003 09:47:58 -0000
@@ -371,7 +371,89 @@
 	return 0;
 }
 
+/*
+ * smp_call_function_on_cpu - Runs func on all processors in the mask
+ *
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @nonatomic: currently unused.
+ * @wait: If true, wait (atomically) until function has completed on other CPUs.
+ * @mask The bitmask of CPUs to call the function
+ * 
+ * Returns 0 on success, else a negative status code. Does not return until
+ * remote CPUs are nearly ready to execute func or have executed it.
+ *
+ */
 
+int
+smp_call_function_on_cpu (void (*func) (void *info), void *info, int retry, int wait,
+			  unsigned long mask)
+{
+	struct smp_call_struct data;
+	long timeout;
+	static spinlock_t lock = SPIN_LOCK_UNLOCKED;
+	int num_cpus = hweight32(mask), cpu, i, ret;
+	
+	cpu = get_cpu();
+	if ((1UL << cpu) & mask) {
+		ret = -EINVAL
+		goto out;
+	}
+
+	data.func = func;
+	data.info = info;
+	data.wait = wait;
+	atomic_set(&data.unstarted_count, num_cpus);
+	atomic_set(&data.unfinished_count, num_cpus);
+
+	if (retry) {
+		spin_lock (&lock);
+		while (smp_call_function_data != 0)
+			barrier();
+	}
+	else {
+		spin_lock (&lock);
+		if (smp_call_function_data) {
+			spin_unlock (&lock);
+			ret = -EBUSY;
+			goto out;
+		}
+	}
+
+	smp_call_function_data = &data;
+	spin_unlock (&lock);
+	
+	/*  Send a message to the target CPUs and wait */
+	for (i = 0; i < NR_CPUS; i++) {
+		if (!cpu_online(i) || !(mask & (1UL << i)))
+			continue;
+		send_IPI_single(i, IPI_CALL_FUNC);
+	}
+
+	/*  Wait for response  */
+	timeout = jiffies + HZ;
+	while ( (atomic_read (&data.unstarted_count) > 0) &&
+		time_before (jiffies, timeout) )
+		barrier ();
+
+	/* We either got one or timed out. Release the lock */
+
+	mb();
+	smp_call_function_data = NULL;
+	if (atomic_read (&data.unstarted_count) > 0) {
+		printk(KERN_CRIT "SMP CALL FUNCTION TIMED OUT! (cpu=%d)\n",
+		      cpu);
+		ret = -ETIMEDOUT;
+		goto out;
+	}
+
+	while (wait && atomic_read (&data.unfinished_count) > 0)
+			barrier ();
+	ret = 0;
+out:
+	put_cpu_no_resched();
+	return ret;
+}
 
 /*
  *	Setup routine for controlling SMP activation
-- 
function.linuxpower.ca





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Subject: Re: [parisc-linux] [PATCH][2.5] smp_call_function_on_cpu for PARISC
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In reference to a message from Zwane Mwaikambo, dated Jan 17:
> One thing though, where is hweight64 on parisc?

it wasn't defined yet... but it is now (in cvs) :-)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Fri, 17 Jan 2003, Randolph Chung wrote:

> In reference to a message from Zwane Mwaikambo, dated Jan 17:
> > One thing though, where is hweight64 on parisc?
> 
> it wasn't defined yet... but it is now (in cvs) :-)

Thanks for informing me =) I'll probably have to pull back on this until i 
have the code which depends on it out.

	Zwane
-- 
function.linuxpower.ca



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> > Those aren't currently being generated (AFAIK).  What _is_ being generated
> > are the patches against upstream: http://ftp.parisc-linux.org/2.5/kernel-sr
> c/
> 
> Ah yes, I saw those.  But then I'll need to make a vanilla Linus tree,
> and I am lazy.  I mean, streamlined and efficient.  =)

One reason I didn't bother with tarballs for 2.5 is it appears from
my limited sample that the tradition is per-arch patches -- and it makes
us appear to be more part of linux development rather than our own thing.

I also find that on slow links, I'm more likely to have a Linus kernel
tree somewhere nearby (perhaps on my x86 box) so only have to wait through
transferring the patch.  Less likely with 2.5 of course since it's changing
fast.

> It'd be nice.  Yes, I'd like it, if it's not a problem for anyone.
> Otherwise I'll try the above method, or slowly drag it out of CVS.  I'm
> assuming that occasional linux-2.5 tarballs might be useful for people
> other than me of course ...

Nobody else has asked.  I just posted a 2.5 tarball in the 2.5 patches
directory, which can then be kept up to date with CVS or with the
incremental patches.

> > > Also the /cvs directory contains a few files that look like stuff-ups
> > > from the CVS tarball roller: linux-.tar.gz and patch-.diff.gz ...
> > 
> > I can see them... but I can also see the CVS scripts are still running.
> > Possibly they'll be renamed later.
> 
> Doesn't seem to be; they're empty files (though > 0 bytes from gzip).  I
> think the checkout script is using an empty variable, eg linux-$i.tar.gz
> or whatever.  The 'latest' softlinks are to these empty files.  I can't
> see any likely-looking tarball-rolling scripts in CVSROOT/ so I'm unable
> to investigate further.

Nothing was obviously wrong with the script or log so I'm kicking it
off again.

	-P


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Other than the boot lifimage, I wonder if you could actually do this
with a "contiguous allocation" logical volume, such as is used for
primary swap? You'd just need an HP utility for passing the block
boundary information to the linux side or palo. Not sure how'd you'd
manage the boot though unless you could get palo to boot the hp kernel.

-- Nathan

On Wed, 2003-01-15 at 18:26, Derek Engelhaupt wrote:
> You can only do it using 2 completely seperate disks or in my case I
> boot from 2 different LUNs on my Autoraid Model 12 - one LINUX the
> other HP-UX. 
> 
> derek 
> 
>  "BUEHL,REINER (HP-Germany,ex1)" <reiner.buehl@hp.com> wrote: 
>         Hi all,
>         
>         Is it possible to install parisc linux into an empty logical
>         volume of an
>         existing HP-UX 11 installation and then boot one or the other
>         OS?
>         
>         Best regards,
>         Reiner.
>         _______________________________________________
>         parisc-linux mailing list
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-- 

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216



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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] RFC on superio serial patch
Date: Sun, 19 Jan 2003 23:27:00 -0800
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Xref: news.gmane.org gmane.linux.ports.parisc:17450

The attached patch uses a slightly different mechanism to address the
circular dependency between SuperIO PCI init and serial init.
this is not particularly clean, but hopefully it will be more 
acceptable for submission upstream. Any comments?


Index: drivers/parisc/superio.c
===================================================================
RCS file: /var/cvs/linux-2.5/drivers/parisc/superio.c,v
retrieving revision 1.7
diff -u -p -r1.7 superio.c
--- drivers/parisc/superio.c	17 Dec 2002 19:53:29 -0000	1.7
+++ drivers/parisc/superio.c	20 Jan 2003 07:33:54 -0000
@@ -391,7 +391,7 @@ void __devinit
 superio_serial_init(void)
 {
 #ifdef CONFIG_SERIAL_8250
-	struct serial_struct *serial;
+	struct serial_struct serial;
 	int retval;
 	
 	if (!sio_dev.irq_region)
@@ -400,47 +400,39 @@ superio_serial_init(void)
 	if (!sio_dev.iosapic_irq_enabled)
 		superio_init(&sio_dev);
 
-	serial = kmalloc(2 * sizeof (struct serial_struct), GFP_KERNEL);
+	memset(&serial, 0, sizeof (struct serial_struct));
 
-	if (!serial) {
-		printk(KERN_WARNING "SuperIO: Could not get memory for serial struct.\n");
-		return;
-	}
-
-	memset(serial, 0, 2 * sizeof (struct serial_struct));
-
-	serial->type = PORT_16550A;
-	serial->line = 0;
-	serial->port = sio_dev.sp1_base;
-	serial->port_high = 0;
-	serial->irq = sio_dev.irq_region->data.irqbase + SP1_IRQ;
-	serial->io_type = SERIAL_IO_PORT;
-	serial->flags = 0;
-	serial->xmit_fifo_size = 16;
-	serial->custom_divisor = 0;
-	serial->baud_base = 115200;
+	serial.type = PORT_16550A;
+	serial.line = 0;
+	serial.port = sio_dev.sp1_base;
+	serial.port_high = 0;
+	serial.irq = sio_dev.irq_region->data.irqbase + SP1_IRQ;
+	serial.io_type = SERIAL_IO_PORT;
+	serial.flags = 0;
+	serial.xmit_fifo_size = 16;
+	serial.custom_divisor = 0;
+	serial.baud_base = 115200;
 
-	retval = register_serial(serial);
+	retval = register_serial(&serial);
 	if (retval < 0) {
 		printk(KERN_WARNING "SuperIO: Register Serial #0 failed.\n");
-		kfree (serial);
 		return;
 	}
 
-	serial++;
+	memset(&serial, 0, sizeof (struct serial_struct));
 
-	serial->type = PORT_16550A;
-	serial->line = 1;
-	serial->port = sio_dev.sp2_base;
-	serial->port_high = 0;
-	serial->irq = sio_dev.irq_region->data.irqbase + SP2_IRQ;
-	serial->io_type = SERIAL_IO_PORT;
-	serial->flags = 0;
-	serial->xmit_fifo_size = 16;
-	serial->custom_divisor = 0;
-	serial->baud_base = 115200;
+	serial.type = PORT_16550A;
+	serial.line = 1;
+	serial.port = sio_dev.sp2_base;
+	serial.port_high = 0;
+	serial.irq = sio_dev.irq_region->data.irqbase + SP2_IRQ;
+	serial.io_type = SERIAL_IO_PORT;
+	serial.flags = 0;
+	serial.xmit_fifo_size = 16;
+	serial.custom_divisor = 0;
+	serial.baud_base = 115200;
 
-	retval = register_serial(serial);
+	retval = register_serial(&serial);
 	if (retval < 0)
 		printk(KERN_WARNING "SuperIO: Register Serial #1 failed.\n");
 #endif /* CONFIG_SERIAL_8250 */
@@ -504,9 +496,6 @@ static int __devinit superio_probe(struc
 #ifdef CONFIG_PARPORT_PC
 		superio_parport_init();
 #endif
-#ifdef CONFIG_SERIAL_8250
-		superio_serial_init();
-#endif
 		/* REVISIT : superio_fdc_init() ? */
 		return 0;
 	} else {
@@ -530,11 +519,6 @@ static struct pci_driver superio_driver 
 
 static int __init superio_modinit(void)
 {
-#ifdef CONFIG_SERIAL_8250
-	extern int serial8250_init(void);
-	serial8250_init();
-#endif
-
 	return pci_module_init(&superio_driver);
 }
 
Index: drivers/serial/8250.c
===================================================================
RCS file: /var/cvs/linux-2.5/drivers/serial/8250.c,v
retrieving revision 1.9
diff -u -p -r1.9 8250.c
--- drivers/serial/8250.c	11 Jan 2003 23:05:10 -0000	1.9
+++ drivers/serial/8250.c	20 Jan 2003 07:33:56 -0000
@@ -2032,12 +2032,9 @@ void serial8250_get_irq_map(unsigned int
 	}
 }
 
-int __init serial8250_init(void)
+static int __init serial8250_init(void)
 {
 	int ret, i;
-/* GROSS HACK for now -PB */
-static int beenhere = 0;
-if (beenhere++) return 1;
 
 	printk(KERN_INFO "Serial: 8250/16550 driver $Revision: 1.90 $ "
 		"IRQ sharing %sabled\n", share_irqs ? "en" : "dis");
Index: drivers/serial/Makefile
===================================================================
RCS file: /var/cvs/linux-2.5/drivers/serial/Makefile,v
retrieving revision 1.9
diff -u -p -r1.9 Makefile
--- drivers/serial/Makefile	24 Dec 2002 22:43:16 -0000	1.9
+++ drivers/serial/Makefile	20 Jan 2003 07:33:56 -0000
@@ -29,3 +29,4 @@ obj-$(CONFIG_SERIAL_68328) += 68328seria
 obj-$(CONFIG_SERIAL_68360) += 68360serial.o
 obj-$(CONFIG_SERIAL_COLDFIRE) += mcfserial.o
 obj-$(CONFIG_V850E_NB85E_UART) += nb85e_uart.o
+obj-$(CONFIG_PARISC) += parisc.o

--- /dev/null	2002-08-24 10:36:34.000000000 -0700
+++ drivers/serial/parisc.c	2003-01-19 23:33:34.000000000 -0800
@@ -0,0 +1,36 @@
+/*
+ *  serial hooks for parisc-based serial drivers
+ *
+ *  Copyright (C) 2003 Randolph Chung <tausq@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Right now this is here just for SuperIO based serial devices
+ * used on some parisc workstations. In the future it may also be
+ * used to implement other parisc-specific serial behavior.
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <asm/superio.h>
+
+static int __init parisc_serial_init(void)
+{
+#ifdef CONFIG_SUPERIO
+	/* The serial function on SuperIO is part of the LIO function;
+	 * as such, superio cannot be written as a generic serial driver.
+	 * The PCI portion of SuperIO is initialized first by 
+	 * drivers/parisc/superio.c. Only after the core serial 
+	 * functionalities are initialized, this driver is called to 
+	 * actually register the serial device with the generic 8250 
+	 * serial driver.
+	 */
+	superio_serial_init();
+#endif
+}
+
+module_init(parisc_serial_init);
+

-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Bala <balak@ieee.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] X on C3000
Date: Mon, 20 Jan 2003 04:40:25 -0600 (CST)
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Hi,

I have not been able to setup X on my C3000. It says "screen not
found". I tried using using your XF86Config-4 file but it still doesn't
help. I am posting the dmesg and the X logs. Can anyone figure out what
could be the reason?

Thanks in advance.
bala

=>On Tue, Dec 03, 2002 at 03:31:06PM -0600, balak@ieee.org wrote:
=>> Has anyone been able to start X on c3000? Should I post the log files to
=>> figure out what could be the problem?
=>
=>Not yet. Just post the dmesg output immediately after the c3k boots.
=>We'll be able to see what kind of gfx card you have from that.
=>
=>See ftp://ftp.parisc-linux.org/kernels/c3000/ for my XF86Config-4
=>and kernels that work on my c3k. If you can't make forward progress
=>after looking at the XF86Config-4, then post the XF86 log files.
=>
=>hth,
=>grant









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Subject: Re: [parisc-linux] X on C3000
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Hi Bala,
>
>I have not been able to setup X on my C3000. It says "screen not
>found". I tried using using your XF86Config-4 file but it still doesn't
>help. I am posting the dmesg and the X logs. Can anyone figure out what
>could be the reason?
>
In your dmesg:
...
STI device: HPA4553A
stifb: Unsupported gfx card id 0x2fc1066b
...

AFAIK you can refer to: <http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/018795.html>

Regards,
    Joel


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Hello,

why are floppy images not supported like for i386?

Thanks.




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> why are floppy images not supported like for i386?

I guess mostly because no one has asked for them, or been motivated
enough to create them. Unlike i386, diskless installs for hppa work 
very well....

also, i think floppy drivers are not yet supported for many of the 
parisc floppy controllers.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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http://www.parisc-linux.org/mailing-lists/
http://pateam.esiee.fr/parisc-linux-boot/doc.html

RT...

Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

On mardi, jan 21, 2003, at 16:54 Europe/Paris, Mehta, Miten wrote:

> Hello,
>
> why are floppy images not supported like for i386?
>
> Thanks.
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>




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On Tue, Jan 21, 2003 at 08:35:05AM -0800, Randolph Chung wrote:
> > why are floppy images not supported like for i386?
> 
> I guess mostly because no one has asked for them, or been motivated
> enough to create them. Unlike i386, diskless installs for hppa work 
> very well....

and palo (boot loader) doesn't grok compressed vmlinuz images.
Patches are welcome...

> also, i think floppy drivers are not yet supported for many of the 
> parisc floppy controllers.

and HP couldn't published anything for floppy controller because of 
litigation at the time the parisc-linux work was being funded. :^(

FWIW, floppy controller support has been on the TODO list since day one.

grant


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>On Tue, Jan 21, 2003 at 08:35:05AM -0800, Randolph Chung wrote:
>> > why are floppy images not supported like for i386?
>> 
>> I guess mostly because no one has asked for them, or been motivated
>> enough to create them. Unlike i386, diskless installs for hppa work 
>> very well....
>
>and palo (boot loader) doesn't grok compressed vmlinuz images.
>Patches are welcome...

hmm, isn't there a problem with the actual size of palo (< ??) (I could also
badly understand)


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On Wed, Jan 15, 2003 at 06:41:45PM -0700, Grant Grundler wrote:
> In any case, doesn't look like a problem with tulip driver.
> I'll let someone else keep poking at this.

I retried this again last night on the c3k.
But this time I used an eepro100 driver and cross-over cable.
Several interesting differences:
o HPMCs instead of panic
o attempting to ssh to the c3k as "root" results in "permission denied"
  and no HPMC or panic
o GR02/IOAQ points at pty data struct not getting setup correctly.
  (I've got some of the data written down at home, just not here)
o iptables based firewall running on tulip NIC was showing packets
  getting LOGd and DROPd. ie ethernet traffic was coming in on the NIC.

Given that pty code works for X11, something must not be getting
initialized correctly for tcp connections.  And since all of the
TCP code and mid-level pty mgt is arch independent, I'm starting
to believe this is a toolchain bug.

Stephan Eranian had a good idea - replace .o's in the gcc 3.2
built kernel tree with .o's built using gcc-3.0. Then maybe we
can narrow down where the issue is.

grant


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Index: linux-2.5.59/include/asm-parisc/cacheflush.h
===================================================================
RCS file: /build/cvsroot/linux-2.5.59/include/asm-parisc/cacheflush.h,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 cacheflush.h
--- linux-2.5.59/include/asm-parisc/cacheflush.h	17 Jan 2003 11:15:49 -0000	1.1.1.1
+++ linux-2.5.59/include/asm-parisc/cacheflush.h	22 Jan 2003 02:41:49 -0000
@@ -25,16 +25,11 @@
 
 extern void flush_cache_all_local(void);
 
-#ifdef CONFIG_SMP
 static inline void flush_cache_all(void)
 {
-	smp_call_function((void (*)(void *))flush_cache_all_local, NULL, 1, 1);
+	smp_call_function((void (*)(void *))flush_cache_all_local, NULL, 1);
 	flush_cache_all_local();
 }
-#else
-#define flush_cache_all flush_cache_all_local
-#endif
-
 
 /* The following value needs to be tuned and probably scaled with the
  * cache size.
Index: linux-2.5.59/arch/parisc/kernel/cache.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59/arch/parisc/kernel/cache.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 cache.c
--- linux-2.5.59/arch/parisc/kernel/cache.c	17 Jan 2003 11:15:15 -0000	1.1.1.1
+++ linux-2.5.59/arch/parisc/kernel/cache.c	22 Jan 2003 00:48:30 -0000
@@ -39,7 +39,7 @@
 void
 flush_data_cache(void)
 {
-	smp_call_function((void (*)(void *))flush_data_cache_local, NULL, 1, 1);
+	smp_call_function((void (*)(void *))flush_data_cache_local, NULL, 1);
 	flush_data_cache_local();
 }
 #endif
Index: linux-2.5.59/arch/parisc/kernel/irq.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59/arch/parisc/kernel/irq.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 irq.c
--- linux-2.5.59/arch/parisc/kernel/irq.c	17 Jan 2003 11:15:15 -0000	1.1.1.1
+++ linux-2.5.59/arch/parisc/kernel/irq.c	22 Jan 2003 00:48:49 -0000
@@ -74,7 +74,7 @@
 
 	cpu_eiem &= ~eirr_bit;
 	set_eiem(cpu_eiem);
-        smp_call_function(cpu_set_eiem, (void *) cpu_eiem, 1, 1);
+        smp_call_function(cpu_set_eiem, (void *) cpu_eiem, 1);
 }
 
 static void enable_cpu_irq(void *unused, int irq)
@@ -83,7 +83,7 @@
 
 	mtctl(eirr_bit, 23);	/* clear EIRR bit before unmasking */
 	cpu_eiem |= eirr_bit;
-        smp_call_function(cpu_set_eiem, (void *) cpu_eiem, 1, 1);
+        smp_call_function(cpu_set_eiem, (void *) cpu_eiem, 1);
 	set_eiem(cpu_eiem);
 }
 
@@ -100,7 +100,7 @@
 	** handle *any* unmasked pending interrupts.
 	** ie We don't need to check for pending interrupts here.
 	*/
-        smp_call_function(cpu_set_eiem, (void *) cpu_eiem, 1, 1);
+        smp_call_function(cpu_set_eiem, (void *) cpu_eiem, 1);
 	set_eiem(cpu_eiem);
 }
 
Index: linux-2.5.59/arch/parisc/kernel/smp.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59/arch/parisc/kernel/smp.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 smp.c
--- linux-2.5.59/arch/parisc/kernel/smp.c	17 Jan 2003 11:15:15 -0000	1.1.1.1
+++ linux-2.5.59/arch/parisc/kernel/smp.c	22 Jan 2003 00:48:10 -0000
@@ -309,7 +309,6 @@
  * Run a function on all other CPUs.
  *  <func>	The function to run. This must be fast and non-blocking.
  *  <info>	An arbitrary pointer to pass to the function.
- *  <retry>	If true, keep retrying until ready.
  *  <wait>	If true, wait until function has completed on other CPUs.
  *  [RETURNS]   0 on success, else a negative status code.
  *
@@ -318,8 +317,9 @@
  */
 
 int
-smp_call_function (void (*func) (void *info), void *info, int retry, int wait)
+smp_call_function (void (*func) (void *info), void *info, int wait)
 {
+	int this_cpu;
 	struct smp_call_struct data;
 	long timeout;
 	static spinlock_t lock = SPIN_LOCK_UNLOCKED;
@@ -330,6 +330,70 @@
 	atomic_set(&data.unstarted_count, smp_num_cpus - 1);
 	atomic_set(&data.unfinished_count, smp_num_cpus - 1);
 
+	this_cpu = get_cpu();
+	spin_lock(&lock);
+	smp_call_function_data = &data;
+	
+	/*  Send a message to all other CPUs and wait for them to respond  */
+	send_IPI_allbutself(IPI_CALL_FUNC);
+
+	/*  Wait for response  */
+	timeout = jiffies + HZ;
+	while ( (atomic_read (&data.unstarted_count) > 0) &&
+		time_before (jiffies, timeout) )
+		barrier ();
+
+	/* We either got one or timed out. Release the lock */
+
+	mb();
+	smp_call_function_data = NULL;
+	spin_unlock(&lock);
+	if (atomic_read (&data.unstarted_count) > 0) {
+		printk(KERN_CRIT "SMP CALL FUNCTION TIMED OUT! (cpu=%d)\n", this_cpu);
+		put_cpu_no_reched();
+		return -ETIMEDOUT;
+	}
+
+	while (wait && atomic_read (&data.unfinished_count) > 0)
+			barrier ();
+	put_cpu_no_resched();
+	return 0;
+}
+
+/*
+ * smp_call_function_on_cpu - Runs func on all processors in the mask
+ *
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @wait: If true, wait (atomically) until function has completed on other CPUs.
+ * @mask The bitmask of CPUs to call the function
+ * 
+ * Returns 0 on success, else a negative status code. Does not return until
+ * remote CPUs are nearly ready to execute func or have executed it.
+ *
+ */
+
+int
+smp_call_function_on_cpu (void (*func) (void *info), void *info, int wait,
+			  unsigned long mask)
+{
+	struct smp_call_struct data;
+	long timeout;
+	static spinlock_t lock = SPIN_LOCK_UNLOCKED;
+	int num_cpus = hweight64(mask), cpu, i, ret;
+	
+	cpu = get_cpu();
+	if (((1UL << cpu) & mask) || num_cpus == 0) {
+		ret = -EINVAL
+		goto out;
+	}
+
+	data.func = func;
+	data.info = info;
+	data.wait = wait;
+	atomic_set(&data.unstarted_count, num_cpus);
+	atomic_set(&data.unfinished_count, num_cpus);
+
 	if (retry) {
 		spin_lock (&lock);
 		while (smp_call_function_data != 0)
@@ -339,15 +403,19 @@
 		spin_lock (&lock);
 		if (smp_call_function_data) {
 			spin_unlock (&lock);
-			return -EBUSY;
+			ret = -EBUSY;
+			goto out;
 		}
 	}
 
 	smp_call_function_data = &data;
 	spin_unlock (&lock);
 	
-	/*  Send a message to all other CPUs and wait for them to respond  */
-	send_IPI_allbutself(IPI_CALL_FUNC);
+	/*  Send a message to the target CPUs and wait */
+	for (i = 0; i < NR_CPUS; i++) {
+		if (cpu_online(i) && (mask & (1UL << i)))
+			send_IPI_single(i, IPI_CALL_FUNC);
+	}
 
 	/*  Wait for response  */
 	timeout = jiffies + HZ;
@@ -361,17 +429,18 @@
 	smp_call_function_data = NULL;
 	if (atomic_read (&data.unstarted_count) > 0) {
 		printk(KERN_CRIT "SMP CALL FUNCTION TIMED OUT! (cpu=%d)\n",
-		      smp_processor_id());
-		return -ETIMEDOUT;
+		      cpu);
+		ret = -ETIMEDOUT;
+		goto out;
 	}
 
 	while (wait && atomic_read (&data.unfinished_count) > 0)
 			barrier ();
-
-	return 0;
+	ret = 0;
+out:
+	put_cpu_no_resched();
+	return ret;
 }
-

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Hello,

bootpquery is complaining address in use for client query.  I went into sam
and had enabled both bootp and tftp.  Then added client section as:
peacock:\
	hd=/var/opt/ignite:\
	rp=/linux:\
	ht=ethernet:\
	ha=xxxxxxxxxxxx:\        --------->actual value replaced with x
	ip=xx.xx.xx.xx:\
	bf=lifimage:\
	sm=255.255.255.0:\
	gw=xx.xx.xx.1:\
	to=7200: ba

Thanks.



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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] bootp and tftp
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> bootpquery is complaining address in use for client query.  I went into sam
> and had enabled both bootp and tftp.  Then added client section as:

um, is there a question in there some place? what did you try? what did
the error message say? 

this sounds like a generic bootp setup problem.... have you looked at
the parisc boot howto?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hello,

parisc boot howto does not talk much on setting bootp up as much I
understood.  I referred hp docs too to verify bootp setup.  But it did not
work.  Here are more details.

appended to /etc/bootptab:
===========================
peacock:\
	hd=/var/opt/ignite:\
	rp=/linux:\
	ht=ethernet:\
	ha=000100010001:\           <=============changed
	ip=192.168.1.21:\           <=============changed
	bf=lifimage:\
	sm=255.255.255.0:\
	gw=192.168.1.1:\
	to=7200:                     <========== here I added ba for
bootpquery


enabled tftp and bootp in sam and seems resulted in following two lines in
/etc/inetd.conf
============================================================================
===============
tftp        dgram  udp wait   root /usr/lbin/tftpd    tftpd\
	/opt/ignite\
	/var/opt/ignite
bootps	dgram	udp	wait	root	/usr/lbin/bootpd	bootpd

There are bootps, bootpc, tftp entries in /etc/services.

ps -e | grep bootp  shall show it running and so does for rbootd.

Error I get when doing 
bootpquery 000100010001 -s myhost 
is Address in use.




-----Original Message-----
From: Randolph Chung [mailto:randolph@tausq.org]
Sent: Wednesday, January 22, 2003 11:18 AM
To: Mehta, Miten
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] bootp and tftp


> bootpquery is complaining address in use for client query.  I went into
sam
> and had enabled both bootp and tftp.  Then added client section as:

um, is there a question in there some place? what did you try? what did
the error message say? 

this sounds like a generic bootp setup problem.... have you looked at
the parisc boot howto?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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I've been playing with the 2.4.20 on my box {debian 3.0 parisc}
I've found a few problems, tried a couple of fixes and got chewed out by a
kernel deveolper so I saw you mentioned on the debian site and thought I
should ask you.

What I get is this:
gcc -D__KERNEL__ -I/usr/src/linux-2.4.20/include -Wall -Wstrict-prototypes
-Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer
-D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1
-mschedule=7200   -nostdinc -iwithprefix include
-DKBUILD_BASENAME=scsi_merge  -c -o scsi_merge.o scsi_merge.c
scsi_merge.c: In function `__count_segments':
scsi_merge.c:226: warning: implicit declaration of function `page_to_phys'
scsi_merge.c: In function `initialize_merge_fn':
scsi_merge.c:1199: `PCI_DMA_BUS_IS_PHYS' undeclared (first use in this
function)scsi_merge.c:1199: (Each undeclared identifier is reported only
once
scsi_merge.c:1199: for each function it appears in.)
make[3]: *** [scsi_merge.o] Error 1
make[3]: Leaving directory `/usr/src/linux-2.4.20/drivers/scsi'
make[2]: *** [first_rule] Error 2
make[2]: Leaving directory `/usr/src/linux-2.4.20/drivers/scsi'
make[1]: *** [_subdir_scsi] Error 2
make[1]: Leaving directory `/usr/src/linux-2.4.20/drivers'
make: *** [_dir_drivers] Error 2

What I did first to fix it was add:
#ifndef PCI_DMA_BUS_IS_PHYS
#define PCI_DMA_BUS_IS_PHYS 1
#endif

I asked the linux-scsi list if that was the proper fix and promptly got
yelled at.  I was told the problem was that asm/pci.h was not included and
that was the fix I should use.  Even though the defines would work...

So I reverted the code back and added the include, now I get the original
error and nothing seems to be resolved.

After adding my defines back I still get errors, just much farther along:
trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer
-D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1
-mschedule=7200   -nostdinc -iwithprefix include -DKBUILD_BASENAME=traps
-c -o traps.o traps.c
traps.c:125: conflicting types for `dump_stack'
/usr/src/linux-2.4.20/include/linux/kernel.h:111: previous declaration of
`dump_stack'
make[1]: *** [traps.o] Error 1
make[1]: Leaving directory `/usr/src/linux-2.4.20/arch/parisc/kernel'
make: *** [_dir_arch/parisc/kernel] Error 2

Um, help?




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Subject: [parisc-linux] ldconfig problems
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I am having issues with the libraries from the 'out-of-box' debian 3.0 for
parisc...

-------------------------------------------------------------------------
/tmp/ccywfbmB.o(.eh_frame+0x11): undefined reference to
`__gxx_personality_v0'
collect2: ld returned 1 exit status

-------------------------------------------------------------------------

make[1]: Entering directory `/usr/src/linux-2.4.20/scripts/lxdialog'
/usr/bin/ld: cannot find -lncurses
collect2: ld returned 1 exit status

>> Unable to find the Ncurses libraries.
>>
>> You must have Ncurses installed in order
>> to use 'make menuconfig'

make[1]: *** [ncurses] Error 1
make[1]: Leaving directory `/usr/src/linux-2.4.20/scripts/lxdialog'
make: *** [menuconfig] Error 2

-------------------------------------------------------------------------

HPTux:/usr/src/linux-2.4.20# cat /etc/ld.so.conf
/usr/X11R6/lib
/usr/lib
/lib
/var/lib

-------------------------------------------------------------------------

HPTux:/usr/src/linux-2.4.20# locate libstdc++
/usr/doc/libstdc++3
/usr/doc/libstdc++3-dev
/usr/lib/gcc-lib/hppa-linux/3.0.4/libstdc++.a
/usr/lib/gcc-lib/hppa-linux/3.0.4/libstdc++.so
/usr/lib/libstdc++.so
/usr/lib/libstdc++.so.3
/usr/lib/libstdc++.so.3.0.4
/usr/share/doc/libstdc++3
/usr/share/doc/libstdc++3-dev
/usr/share/doc/libstdc++3/changelog.Debian.gz
/usr/share/doc/libstdc++3/changelog.gz
/usr/share/doc/libstdc++3/copyright
/usr/share/doc/libstdc++3/README.Debian
/var/lib/dpkg/info/libstdc++3-dev.list
/var/lib/dpkg/info/libstdc++3-dev.md5sums
/var/lib/dpkg/info/libstdc++3-dev.postinst
/var/lib/dpkg/info/libstdc++3-dev.prerm
/var/lib/dpkg/info/libstdc++3.list
/var/lib/dpkg/info/libstdc++3.md5sums
/var/lib/dpkg/info/libstdc++3.postinst
/var/lib/dpkg/info/libstdc++3.postrm
/var/lib/dpkg/info/libstdc++3.prerm
/var/lib/dpkg/info/libstdc++3.shlibs

-------------------------------------------------------------------------

HPTux:/usr/src/linux-2.4.20# locate libncur
/lib/libncurses.so.5
/lib/libncurses.so.5.2
/usr/doc/libncurses5
/usr/share/doc/libncurses5
/usr/share/doc/libncurses5/changelog.Debian.gz
/usr/share/doc/libncurses5/changelog.gz
/usr/share/doc/libncurses5/copyright
/usr/share/doc/libncurses5/FAQ
/usr/share/doc/libncurses5/README.Debian
/var/lib/dpkg/info/libncurses5.list
/var/lib/dpkg/info/libncurses5.postinst
/var/lib/dpkg/info/libncurses5.postrm
/var/lib/dpkg/info/libncurses5.prerm
/var/lib/dpkg/info/libncurses5.shlibs

-------------------------------------------------------------------------

Ok, so I blew away /etc/ld.so.cache
ran ldconfig
and have the same problems

What gives?





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In reference to a message from Sir Ace, dated Jan 22:
> 
> I've been playing with the 2.4.20 on my box {debian 3.0 parisc}
> I've found a few problems, tried a couple of fixes and got chewed out by a
> kernel deveolper so I saw you mentioned on the debian site and thought I
> should ask you.

where did you get your kernel tree? you need to use a tree downloaded
from parisc-linux.org, instead of an "official" linux tree, 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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I'm using Linus's Tree/Marcelo's Tree 2.4

How much difference is there between the custom one on hppa-linux.org, and
2.4.20?

On Wed, 22 Jan 2003, Randolph Chung wrote:

> In reference to a message from Sir Ace, dated Jan 22:
> >
> > I've been playing with the 2.4.20 on my box {debian 3.0 parisc}
> > I've found a few problems, tried a couple of fixes and got chewed out by a
> > kernel deveolper so I saw you mentioned on the debian site and thought I
> > should ask you.
>
> where did you get your kernel tree? you need to use a tree downloaded
> from parisc-linux.org, instead of an "official" linux tree,
>
> randolph
>



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> How much difference is there between the custom one on hppa-linux.org, and
> 2.4.20?

Go to http://ftp.parisc-linux.org/cvs/ and look at the patch-* files.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Thursday 23 January 2003 02:34, Sir Ace wrote:
> I am having issues with the libraries from the 'out-of-box' debian 3.0 for
> parisc...
>
> -------------------------------------------------------------------------
> /tmp/ccywfbmB.o(.eh_frame+0x11): undefined reference to
> `__gxx_personality_v0'
> collect2: ld returned 1 exit status


Link your c++ object files with g++, not with ld.

Helge


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 	Hello


I am running debian/unstable on a couple of 715/33 boxes . I use
dist-update once a week . Sometime the last 2-3 months after an apt-get i
was unable to login to  the system vi ssh . The authentication was
successfull but the connection was closed immediately after. The log in
the parisc box was :

Jan 23 15:41:28 system sshd[3582]: Accepted publickey for foo from
1.2.3.4 port 55740 ssh2
Jan 23 15:41:28 system ssh(pam_unix)[3584]: session opened for user foo
by (uid=1000)
Jan 23 15:41:28 system pam_limits[3584]: setrlimit limit #3 to
soft=8388608, hard=-1 failed: Operation not permitted; uid=1000 euid=1000
Jan 23 15:41:28 system pam_limits[3584]: setrlimit limit #7 to soft=-1,
hard=-1 failed: Operation not permitted; uid=1000 euid=1000
Jan 23 15:41:28 system sshd[3584]: fatal: PAM session setup failed[6]:
Permission denied


 I first got around the problem by disabling privilage separation in
sshd_conf . PAM was always disabled there . Today I just realized that the
problem  goes way too if I remove all the entries I have in
/etc/hosts.allow . I can then enable PrivSep again .
	I dont see the same behaviour in an Debian 3.0 i386 box , but they
seem to have quiet different pam .

	Is this a feature or a bug ?


 Best regards ,

 --
=============================================================================

Dimitris Zilaskos

Department of Physics @ Aristotle Univercity of Thessaloniki , Greece
PGP key : http://tassadar.physics.auth.gr/~dzila/pgp_public_key.asc
          http://egnatia.ee.auth.gr/~dzila/pgp_public_key.asc
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=============================================================================




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From: Jochen Friedrich <jochen@scram.de>
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Hi Grant,

> and HP couldn't published anything for floppy controller because of
> litigation at the time the parisc-linux work was being funded. :^(

Don't 715 / 720 just have SCSI floppies?

--jochen



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> -----Original Message-----
> From: Jochen Friedrich [mailto:jochen@scram.de]
> 
> Hi Grant,
> 
> > and HP couldn't published anything for floppy controller because of
> > litigation at the time the parisc-linux work was being funded. :^(
> 
> Don't 715 / 720 just have SCSI floppies?

If they have, they should be available for all other machines: the driver is
in the os, the scsi is most (all) systems.

I do know, the 712 has a wintel/pc-based floppy interface. Just hook any
standard (hence, no ibm ;-) 3.5, hd floppy device to the cable and off you
go. 


CBee 

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charset=3Diso-8859-1">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2654.45">
<TITLE>RE: [parisc-linux] floppy images</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: Jochen Friedrich [<A =
HREF=3D"mailto:jochen@scram.de">mailto:jochen@scram.de</A>]</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Hi Grant,</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; and HP couldn't published anything for =
floppy controller because of</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; litigation at the time the parisc-linux =
work was being funded. :^(</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Don't 715 / 720 just have SCSI floppies?</FONT>
</P>

<P><FONT SIZE=3D2>If they have, they should be available for all other =
machines: the driver is in the os, the scsi is most (all) =
systems.</FONT>
</P>

<P><FONT SIZE=3D2>I do know, the 712 has a wintel/pc-based floppy =
interface. Just hook any standard (hence, no ibm ;-) 3.5, hd floppy =
device to the cable and off you go. </FONT></P>
<BR>

<P><FONT SIZE=3D2>CBee </FONT>
</P>

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On Thu, Jan 23, 2003 at 02:56:54PM +0100, Jochen Friedrich wrote:
> > and HP couldn't published anything for floppy controller because of
> > litigation at the time the parisc-linux work was being funded. :^(
> Don't 715 / 720 just have SCSI floppies?

That is certainly possible. I've heard that the odd connector towards
the back is a pretty regular floppy connector. Don't know where the
power comes from, though. Nor what configuration HP shipped.

-- 
Later I found myself pondering the words of Dubya, how people who "harbor
and feed" terrorists are to be treated as terrorists, and about the sucky
timing of nimda... and came to the logical conclusion that billg is to be
treated as a terrorist. 	-- seen on a.s.r


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On Thursday 23 January 2003 08:05 am, Harri Haataja wrote:
> On Thu, Jan 23, 2003 at 02:56:54PM +0100, Jochen Friedrich wrote:
> > > and HP couldn't published anything for floppy controller because of
> > > litigation at the time the parisc-linux work was being funded. :^(
> >
> > Don't 715 / 720 just have SCSI floppies?
>
My 9000/720-50MHz box has factory SCSI floppy

>
> That is certainly possible. I've heard that the odd connector towards
> the back is a pretty regular floppy connector. Don't know where the
> power comes from, though. Nor what configuration HP shipped.

Must be through the I/O cable - no other cable on the device.

Mike


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On Thu, Jan 23, 2003 at 02:56:54PM +0100, Jochen Friedrich wrote:
> Hi Grant,
> 
> > and HP couldn't published anything for floppy controller because of
> > litigation at the time the parisc-linux work was being funded. :^(
> 
> Don't 715 / 720 just have SCSI floppies?

Only 715/old (33/50/75Mhz), not 715/new.
Any system with LASI or SuckyIO shipped with a PC floppy.
All the workstations with PCI, use PC floppy.

I don't know about 720 - glad someone else said it did.

grant


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From: Jochen Friedrich <jochen@scram.de>
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Subject: Re: [parisc-linux] floppy images
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Xref: news.gmane.org gmane.linux.ports.parisc:17475

Hi Grant,

> I don't know about 720 - glad someone else said it did.

model 9000/720
Total Memory: 32 Mb
[...]
SCSI subsystem driver Revision: 1.00
53c700: consistent memory allocation failed
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0
scsi0 : LASI SCSI 53c700
  Vendor: TEAC      Model: FC-1     HF   07  Rev: RV A
  Type:   Direct-Access                      ANSI SCSI revision: 01 CCS
  Vendor: IBM       Model: DCAS-34330        Rev: S61A
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi removable disk sda at scsi0, channel 0, id 3, lun 0
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0

sda is the floppy, sdb the hard drive.

Thanks,
--jochen



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From: "b.gunreben" <b.gunreben@web.de>
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Subject: [parisc-linux] kernel update bug?
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Hi,

I recently got a C360 to play around with it. After installing an old beta
of woody (thats the distribution, I got on my private net), everything seemd
fine. The kernel --
Linux version 2.4.9-32 (root@paer) (gcc version 3.0.2 (Debian)) #1 Fri Nov
30 19:36:30 MST 2001 -- worked just fine. 

After this, I installed a newer kernel (well, I just copied the kernel, and
omitted the modules):  -- 
Linux version 2.4.20-pa18 (bame@dsl2) (gcc version 3.0.3) #1 Fri Dec 27
06:12:20 MST 2002 --
and with this kernel, the machine crashes reproduceable when starting up. 

Now the reason: I found, that with kernel 2.4.9, there were 3 serial devices
found

/dev/ttyS0 uart 16550A port 0x0000 irq 90 baud_base 454545 spd_normal
/dev/ttyS1 uart 16550A port 0x0000 irq 106 baud_base 454545 spd_normal
/dev/ttyS2 uart 16550A port 0x0000 irq 170 baud_base 454545 spd_normal

the later kernel finds only the first two of these interfaces, and restarts
when restoring the settings of /dev/ttyS2. Later it crashes completely of
course. I could fix this behaviour by commenting out the last line in
/etc/serial.conf.

Now my question: should kernel 2.4.20 find two or three serial devices on a
C360, and why does the kernel crash if setserial tries to configure a
(nonexistant?) device?


Berthold


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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] kernel update bug?
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On Thu, Jan 23, 2003 at 10:19:00PM +0100, b.gunreben wrote:
> Now the reason: I found, that with kernel 2.4.9, there were 3 serial devices
> found
> 
> /dev/ttyS0 uart 16550A port 0x0000 irq 90 baud_base 454545 spd_normal
> /dev/ttyS1 uart 16550A port 0x0000 irq 106 baud_base 454545 spd_normal
> /dev/ttyS2 uart 16550A port 0x0000 irq 170 baud_base 454545 spd_normal
> 
> the later kernel finds only the first two of these interfaces, and restarts
> when restoring the settings of /dev/ttyS2. Later it crashes completely of
> course. I could fix this behaviour by commenting out the last line in
> /etc/serial.conf.
> 
> Now my question: should kernel 2.4.20 find two or three serial devices on a
> C360, and why does the kernel crash if setserial tries to configure a
> (nonexistant?) device?

Well, how many serial ports do you have?  ;-)

It was a bug up till (i think) a 2.4.17 kernel that we found a ghost
serial port.  And setserial is a broken piece of crap that will crash
the machine if it tries to set serial ports that don't exist.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] [PATCH] long booting kernels...
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Hello,

I finally found some time to test the updated bus walk code on a
parisc-2.4.20-pa22 system.  It works fine for me, but the C200 does not
exhibit the problems seen by others on this list.  I would appreciate if
someone with this problem could test this patch and see if it speeds the
boot time up.

This is the same patch I applied to the 2.5 tree several months ago.

Thanks,

- Ryan


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Index: arch/parisc/kernel/drivers.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/drivers.c,v
retrieving revision 1.48
diff -u -p -r1.48 drivers.c
--- arch/parisc/kernel/drivers.c	11 Sep 2002 05:47:43 -0000	1.48
+++ arch/parisc/kernel/drivers.c	21 Nov 2002 05:10:51 -0000
@@ -9,6 +9,7 @@
  * Copyright (c) 1999 The Puffin Group
  * Copyright (c) 2001 Matthew Wilcox for Hewlett Packard
  * Copyright (c) 2001 Helge Deller <deller@gmx.de>
+ * Copyright (c) 2001,2002 Ryan Bradetich 
  * 
  * The file handles registering devices and drivers, then matching them.
  * It's the closest we get to a dating agency.
@@ -23,7 +24,6 @@
 #include <asm/hardware.h>
 #include <asm/io.h>
 #include <asm/pdc.h>
-#include <asm/gsc.h>
 
 /* See comments in include/asm-parisc/pci.h */
 struct pci_dma_ops *hppa_dma_ops;
@@ -416,6 +416,7 @@ alloc_pa_dev(unsigned long hpa, struct h
 	dev->id.sversion = ((iodc_data[4] & 0x0f) << 16) |
 			(iodc_data[5] << 8) | iodc_data[6];
 	dev->hpa = hpa;
+
 	name = parisc_hardware_description(&dev->id);
 	if (name) {
 		strncpy(dev->name, name, sizeof(dev->name)-1);
@@ -461,30 +462,25 @@ int register_parisc_device(struct parisc
 #define BC_PORT_MASK 0x8
 #define BC_LOWER_PORT 0x8
 
+#define IO_STATUS 	offsetof(struct bc_module, io_status)
 
 #define BUS_CONVERTER(dev) \
         ((dev->id.hw_type == HPHW_IOA) || (dev->id.hw_type == HPHW_BCPORT))
 
 #define IS_LOWER_PORT(dev) \
-        ((gsc_readl(&((struct bc_module *)dev->hpa)->io_status) \
-                & BC_PORT_MASK) == BC_LOWER_PORT)
-
-#define READ_IO_IO_LOW(dev) \
-	(dev->id.hw_type == HPHW_IOA ? \
-	        __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_io_low) << 16 : \
-	        __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_io_low))
-
-#define READ_IO_IO_HIGH(dev) \
-	(dev->id.hw_type == HPHW_IOA ? \
-	        __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_io_high) << 16 : \
-	        __raw_readl((unsigned long)&((struct bc_module *)dev->hpa)->io_io_high))
+        ((__raw_readl(dev->hpa + IO_STATUS) & BC_PORT_MASK) == BC_LOWER_PORT)
 
+#define MAX_NATIVE_DEVICES 64
+#define NATIVE_DEVICE_OFFSET 0x1000
 
-static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high, 
-			    struct parisc_device *parent);
-
-#define FLEX_MASK (unsigned long)0xfffffffffffc0000
+#define FLEX_MASK 	(unsigned long)0xfffffffffffc0000
+#define IO_IO_LOW	offsetof(struct bc_module, io_io_low)
+#define IO_IO_HIGH	offsetof(struct bc_module, io_io_high)
+#define READ_IO_IO_LOW(dev)  (unsigned long)(signed int)__raw_readl(dev->hpa + IO_IO_LOW)
+#define READ_IO_IO_HIGH(dev) (unsigned long)(signed int)__raw_readl(dev->hpa + IO_IO_HIGH)
 
+static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high,
+                            struct parisc_device *parent);
 
 void walk_lower_bus(struct parisc_device *dev)
 {
@@ -493,15 +489,17 @@ void walk_lower_bus(struct parisc_device
 	if(!BUS_CONVERTER(dev) || IS_LOWER_PORT(dev))
 		return;
 
-	io_io_low = ((unsigned long)(signed int)READ_IO_IO_LOW(dev) + ~FLEX_MASK) & FLEX_MASK;
-	io_io_high = ((unsigned long)(signed int)READ_IO_IO_HIGH(dev) + ~FLEX_MASK) & FLEX_MASK;
+	if(dev->id.hw_type == HPHW_IOA) {
+		io_io_low = (unsigned long)(signed int)(READ_IO_IO_LOW(dev) << 16);
+		io_io_high = io_io_low + MAX_NATIVE_DEVICES * NATIVE_DEVICE_OFFSET;
+	} else {
+		io_io_low = (READ_IO_IO_LOW(dev) + ~FLEX_MASK) & FLEX_MASK;
+		io_io_high = (READ_IO_IO_HIGH(dev)+ ~FLEX_MASK) & FLEX_MASK;
+	}
 
 	walk_native_bus(io_io_low, io_io_high, dev);
 }
 
-#define MAX_NATIVE_DEVICES 64
-#define NATIVE_DEVICE_OFFSET 0x1000
-
 /**
  * walk_native_bus -- Probe a bus for devices
  * @io_io_low: Base address of this bus.
@@ -515,7 +513,7 @@ void walk_lower_bus(struct parisc_device
  * keyboard ports).  This problem is not yet solved.
  */
 static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high,
-			    struct parisc_device *parent)
+                            struct parisc_device *parent)
 {
 	int i, devices_found = 0;
 	unsigned long hpa = io_io_low;
@@ -523,7 +521,7 @@ static void walk_native_bus(unsigned lon
 
 	get_node_path(parent, &path);
 	do {
-		for (i = 0; i < MAX_NATIVE_DEVICES; i++, hpa += NATIVE_DEVICE_OFFSET) {
+		for(i = 0; i < MAX_NATIVE_DEVICES; i++, hpa += NATIVE_DEVICE_OFFSET) {
 			struct parisc_device *dev;
 
 			/* Was the device already added by Firmware? */
@@ -539,7 +537,7 @@ static void walk_native_bus(unsigned lon
 			}
 			walk_lower_bus(dev);
 		}
-	} while (!devices_found && hpa < io_io_high);
+	} while(!devices_found && hpa < io_io_high);
 }
 
 #define CENTRAL_BUS_ADDR (unsigned long) 0xfffffffffff80000
@@ -552,7 +550,7 @@ static void walk_native_bus(unsigned lon
  */
 void walk_central_bus(void)
 {
-	walk_native_bus(CENTRAL_BUS_ADDR, 
+	walk_native_bus(CENTRAL_BUS_ADDR,
 			CENTRAL_BUS_ADDR + (MAX_NATIVE_DEVICES * NATIVE_DEVICE_OFFSET),
 			&root);
 }

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Hi Grant,
...
>  And since all of the
>TCP code and mid-level pty mgt is arch independent, I'm starting
>to believe this is a toolchain bug.
>
>Stephan Eranian had a good idea - replace .o's in the gcc 3.2
>built kernel tree with .o's built using gcc-3.0. Then maybe we
>can narrow down where the issue is.
>
Following this idea I do the following test:

on a b2k unstable debian install with toolchain pkg:

ii  gcc            3.2.2-0        The GNU C compiler.
ii  gcc-3.0        3.0.4-14       The GNU C compiler
ii  gcc-3.0-base   3.0.4-14       The GNU Compiler Collection (base package)
ii  gcc-3.2        3.2.2-0pre5    The GNU C compiler
ii  gcc-3.2-base   3.2.2-0pre5    The GNU Compiler Collection (base package)
ii  gcc-snapshot   20030118-1     A SNAPSHOT of the The GNU Compiler Collectio
ii  libc6          2.3.1-10       GNU C Library: Shared libraries and Timezone
ii  libc6-dev      2.3.1-10       GNU C Library: Development Libraries and
Hea
ii  binutils       2.13.90.0.16-1 The GNU assembler, linker and binary utiliti
ii  binutils-dev   2.13.90.0.16-1 The GNU binary utilities (BFD development
fi

I build first kernel-2.4.20-pa22 with default gcc (ie gcc-3.2); without surprise
it crashed on the first incomming ip connection.

I then 'make distclean', replaced gcc by gcc-3.0 into Makefile and rebuild
so the same sources with the same .config. The result is an operational kernel.

Trust me, in this test the only variable is gcc release. Does it help?

That said, always in the continuity of this idea, I also notice that ld is
used to build some kernel parts. Is it  possible (even manually just for
test) to use gcc in place of ld? (if yes, howto?)

hth,
    Joel


*********************************************
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Subject: [parisc-linux] Um... WTF?
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  I have no idea who to direct this to, and everyone keeps directing me to
this liste, so here goes.

Who was the CRACK HEAD that built the debian 3.0 dist for hppa?
I am trying to build everyday things on the system to at least make it
useable.  I just built ncurses {current} on my box, but to install the
ncurses, I had to remove the current debian package.

Herein lies the problem, some how EVERY DAMN THING on the system seems to
be built against ncurses, I can't open a login shell, I can't run apt* I
can't even run half the system commands without getting an error
complaining that ncurses is not on the system.

I am kinda peaved since I put the files on the system to add ncurses back,
then went home for the weekend to fix it.  Well, since I can't log in
anymore.  Unfortunatly now I no longer have any shells open, and I am
either reduced to working off the cd for a repair if possible.
Or stuck re-installing the system. Which took a day between the slowness
of the machine and the slowness of the internet connection. Not to mention
4 days of software builds...

Does anyone have an explination for this? Or better yet a way that isn't
going to involve a massive amount of work to get the machine in order
again?

-------------------------------------------------------------------------
chandler@jordan:~$ telnet 172.16.100.148
Trying 172.16.100.148...
Connected to 172.16.100.148.
Escape character is '^]'.
Debian GNU/Linux 3.0 HPTux
HPTux login: root
Password:
Last login: Fri Jan 24 23:13:14 2003 from asok.eng.nateng.com on pts/2
Linux HPTux 2.4.17-32 #1 Sat Mar 16 17:09:00 MST 2002 parisc unknown

Most of the programs included with the Debian GNU/Linux system are
freely redistributable; the exact distribution terms for each program
are described in the individual files in /usr/share/doc/*/copyright

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
-bash: error while loading shared libraries: libncurses.so.5: cannot open
shared
 object file: No such file or directory
Connection closed by foreign host.
-------------------------------------------------------------------------
chandler@jordan:~$ ssh -l root 172.16.100.148
root@172.16.100.148's password:
Last login: Fri Jan 24 23:25:12 2003 from jordan.eng.nateng.com on pts/2
Linux HPTux 2.4.17-32 #1 Sat Mar 16 17:09:00 MST 2002 parisc unknown

Most of the programs included with the Debian GNU/Linux system are
freely redistributable; the exact distribution terms for each program
are described in the individual files in /usr/share/doc/*/copyright

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Fri Jan 24 23:25:12 2003 from jordan.eng.nateng.com
-bash: error while loading shared libraries: libncurses.so.5: cannot open
shared
 object file: No such file or directory
Connection to 172.16.100.148 closed.



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On Fri, Jan 24, 2003 at 12:02:25PM +0100, Joel Soete wrote:
> Trust me, in this test the only variable is gcc release. Does it help?

not alot. We need to narrow down *what* is broken and then show that
to the compiler/toolchain experts. They need either a test case or
shown broken asm output.

> That said, always in the continuity of this idea, I also notice that ld is
> used to build some kernel parts. Is it  possible (even manually just for
> test) to use gcc in place of ld? (if yes, howto?)

hmm...offhand I don't know.

grant


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On Fri, Jan 24, 2003 at 03:37:28PM -0800, Sir Ace wrote:
> 
>   I have no idea who to direct this to, and everyone keeps directing me to
> this liste, so here goes.

parisc-linux mailing list is really intended for kernel stuff.
lists.debian.org has lots of mailing lists to post rants.

> Who was the CRACK HEAD that built the debian 3.0 dist for hppa?

yeah, debian-hppa list would have been better.  Or debian-devel.
Your problem is not hppa specific.

/me sits back to watch the late New Years fireworks...

> I am trying to build everyday things on the system to at least make it
> useable.  I just built ncurses {current} on my box, but to install the
> ncurses, I had to remove the current debian package.

Why remove the existing package?
I overwrite existing files when I need to.


> Herein lies the problem, some how EVERY DAMN THING on the system seems to
> be built against ncurses,

Right. *system* being the operative word here.

> I am either reduced to working off the cd for a repair if possible.

yes. The CD has a shell which will let you fix *most* things.

You might also try booting with "init=/bin/bash" or if you are lucky,
"init=/bin/sash". Then by hand re-install the libncurses.


> Not to mention 4 days of software builds...

uhm...what are you building that takes 4 days?
Not even glibc or xfree86 takes that long.


grant



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> That said, always in the continuity of this idea, I also notice that ld is
> used to build some kernel parts. Is it  possible (even manually just for
> test) to use gcc in place of ld? (if yes, howto?)

When linking, gcc is just a front end for ld.  You can see what happens
with "-v", "-Wl,-v", "-Wl,-debug", etc.  You can pass any option that
you want to ld using the gcc "-Wl" option.  Gcc doesn't doing any linking
itself.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Grant Grundler said:
> On Fri, Jan 24, 2003 at 03:37:28PM -0800, Sir Ace wrote:
> >   I have no idea who to direct this to, and everyone keeps directing me to
> > this liste, so here goes.
> 
> parisc-linux mailing list is really intended for kernel stuff.

And glibc, gcc, binutils, & documentation ... everything hppa but not
Debian.  =)

> lists.debian.org has lots of mailing lists to post rants.

Not that they're any more welcome there.

> > Herein lies the problem, some how EVERY DAMN THING on the system seems to
> > be built against ncurses,
> 
> Right. *system* being the operative word here.

Poor Sir Ace must be confused.  A Debian GNU/Linux 3.0 install on hppa
should work fine.  Look at all these happy people who are running it!

Possibly the ncurses package was not installed properly, or some of the
files owned by it had become damaged or corrupted.  You could manually
reinstall the package with 'dpkg -i /path/to/package.deb' and then make
sure that all packages are ready with 'dpkg --configure -a'.  Then you
can run 'dpkg -l|grep -v ^ii' to see what (if any) packages on the
system are in a state other than fully installed (eg partially
installed, not configured, etc.)

If you've done all this and not gotten anywhere, the debian-hppa list
may be able to help you out if you ask nicely.

> You might also try booting with "init=/bin/bash" or if you are lucky,
> "init=/bin/sash". Then by hand re-install the libncurses.

Grant, do you mean "lucky" as in "if you've got sash installed"?  It
doesn't depend on ncurses.  Or am I just not understanding you?

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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On Sat, 25 Jan 2003 17:17:51 +0800
"Andrew Shugg" <andrew@neep.com.au> wrote:

> Grant Grundler said:
> > On Fri, Jan 24, 2003 at 03:37:28PM -0800, Sir Ace wrote:
> > > Herein lies the problem, some how EVERY DAMN THING on the system
> > > seems to be built against ncurses,
> > 
> > Right. *system* being the operative word here.
> 
> Poor Sir Ace must be confused.  A Debian GNU/Linux 3.0 install on hppa
> should work fine.  Look at all these happy people who are running it!
http://pateam.esiee.fr/realisations.html

FWIW, when I encounter such diseases on _any_ platform, I first suspect
the hardware, not the "it-works-for-thousands-of-persons" software.

What's more, no need to use CAPS, exclamations and other insults to ask
questions or report problems. You won't get any result but upsetting
guys who did a _damn good work_ to make the stuff work.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

-- 
It's always easy to criticize one's work, but try to do it first...


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John David Anglin wrote:
>>That said, always in the continuity of this idea, I also notice that ld is
>>used to build some kernel parts. Is it  possible (even manually just for
>>test) to use gcc in place of ld? (if yes, howto?)
> 
> 
> When linking, gcc is just a front end for ld.  You can see what happens
> with "-v", "-Wl,-v", "-Wl,-debug", etc.  You can pass any option that
> you want to ld using the gcc "-Wl" option.  Gcc doesn't doing any linking
> itself.
> 

Ha Ok.

My confusion came from Helge Deller mail:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/018970.html>

But he spook about g++ (which I presume is different of gcc)?

Thanks,
	Joel



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> My confusion came from Helge Deller mail:
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/018970.html>
> 
> But he spook about g++ (which I presume is different of gcc)?

No, it also uses ld.  However, its defaults with respect to libgcc linking
and exception support differ (ie, it sets defaults suitable to C++).  You
can link C++ code using gcc if you provide the correct options.  The
libtool package now uses gcc for linking as its options are more standardized
than those for ld.  I should note that it isn't possible to link g++ and
some gcc code directly with ld unless the system doesn't require collect2.
Collect2 is used to determine and link in code needed for the running of
initializers and finalizers.  The gcc/g++ drivers run collect2, and it
runs ld.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Sat, Jan 25, 2003 at 05:17:51PM +0800, Andrew Shugg wrote:
> And glibc, gcc, binutils, & documentation ... everything hppa but not
> Debian.  =)

true.

> Grant, do you mean "lucky" as in "if you've got sash installed"?

yes. It's not installed by default...I'm thinking I should
install it on any machine running unstable though...
nearly all of my machines (parisc, x86, ia64) are running testing.

grant


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Thibaut VARENE wrote:
> On Sat, 25 Jan 2003 17:17:51 +0800
> "Andrew Shugg" <andrew@neep.com.au> wrote:
> 
> 
>>Grant Grundler said:
>>
>>>On Fri, Jan 24, 2003 at 03:37:28PM -0800, Sir Ace wrote:
>>>
>>>>Herein lies the problem, some how EVERY DAMN THING on the system
>>>>seems to be built against ncurses,
>>>

Consider how many things are linked against libreadline, so you have 
intra-line editing on command lines. They all reference libncurses. Not 
a complaint against debian, pa-risc debian, any given linux dist. Maybe 
a complaint against certain GNU tools and life in general.

Let's back up: you originally had this problem running 'make menuconfig' 
in the kernel source tree, which seemingly got upset about curses, and 
yet as really referring to something in libsupc++.a. That's an integral 
part of your gcc/g++ installation, which leads me to believe you either 
had an unsuccessful install.

> /tmp/ccywfbmB.o(.eh_frame+0x11): undefined reference to
> `__gxx_personality_v0'
> collect2: ld returned 1 exit status

Right now, you can't get into the system because of this issue. You 
could telnet or ssh in, if you can specify a statically-linked shell to 
run. /bin/sash and /bin/busybox are statically linked. Of the two, I 
prefer busybox, because it also has scaled-down common unix tools 
built-in. If this works, great, you can get and do some cleaning.

If this doesn't work, you could boot off of the CDROM, and instead of 
going through the Debian-fun-and-games install, choose 'execute a shell' 
from their menu. Then, you can manually mount the hard disk, cd over 
there, and do your scrubbing that way.

Lots of lots of fun. BTW, do you know how to install a .deb file without 
the benefit of a working dpkg/dselect/apt et al?

1. A deb file is really an archive built by ar. E.g.,

ar tv apt-listbugs_0.0.1hanzubon6_all.deb
rw-r--r-- 0/0      4 Dec 17 20:07 2002 debian-binary
rw-r--r-- 0/0   2002 Dec 17 20:07 2002 control.tar.gz
rw-r--r-- 0/0  13902 Dec 17 20:07 2002 data.tar.gz

2. Those .tar.gz file really are gzipped tarfiles.

Of these, control.tar.gz is a tar file with the pre-, post-install 
scripts. data.tar.gz is the tarfile of the binaries you are installing.

That is about enough to get you in and out of trouble several times. 
Good luck!






-- 
____               .:.                 ____
Bryan W. Headley - bwheadley@earthlink.net



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On Tue, Jan 21, 2003 at 04:57:16PM -0700, Grant Grundler wrote:
> Stephan Eranian had a good idea - replace .o's in the gcc 3.2
> built kernel tree with .o's built using gcc-3.0. Then maybe we
> can narrow down where the issue is.

this worked. replacing drivers/char/pty.o with one built using
gcc-3.0 resulted in a kernel that ssh logins wouldn't crash.

Any advice on comparing .o's? or rather compare .S files?

I can probably also narrow down the code path a bit more.
I'm suspecting the initialization before calling tty_register_driver().

thanks,
grant


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> Any advice on comparing .o's? or rather compare .S files?

You could try using "objdump -d" on the .o's, then diff'ing.  However
the diff might be large.  Probably, comparing .S files would be
best.  Don't use "-g".  However, if you find a difference that looks
suspicious, "-g" will help you locate the source line.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Sir Ace <chandler@nateng.com>
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Subject: [parisc-linux] Ok all
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  I would like to say thanks for everyone that replied to the questions I
asked, and apologize for my rant the other day.
  I was told by many people {don't have access to the list of who at the
moment}, that this was the list to bug with the debian problems.
Anyway that said, some quick things:

-------------------------------------------------------------------------
> Why remove the existing package?
> I overwrite existing files when I need to.

The install paths are different than the paths that were used byt the
packages.
-------------------------------------------------------------------------
> yes. The CD has a shell which will let you fix *most* things.

> You might also try booting with "init=/bin/bash" or if you are lucky,
> "init=/bin/sash". Then by hand re-install the libncurses.

Ahh, just like IRIX, thanks...
-------------------------------------------------------------------------
> uhm...what are you building that takes 4 days?
> Not even glibc or xfree86 takes that long.

On 128 Meg of ram, and 1 100Mhz pa7200, openssl, openssh, 2.4.20 kernel,
gcc 2.95.3, pine, and several other apps...  Remembering things don't
normally build the first time around, and tweaks must be made...
-------------------------------------------------------------------------

> What's more, no need to use CAPS, exclamations and other insults to ask
> questions or report problems. You won't get any result but upsetting
> guys who did a _damn good work_ to make the stuff work.

Ok, then I will give credit to everyone who got it this far, I am happy I
might be able to get the workstations here in my office off of HP/UX 10.20
and into this decade, even if I have to setup NFS-root clients to do it.

But, I really would like to emphasise, how much I really don't appreciate
the linking or curses into so many things.  I built my own dist from
scratch for the Hitachi-SuperH, and I had little to no help at the time,
since there was no one working on it yet.  I found no reason to link
libraries in that weren't needed, especially since I was building from
scratch, and it was more than I needed in the beginings....  Noteably
hppa-linux is much farther along than my dist was or is, so credit
to the folks there...  But like it has been said this is the wrong
liste to rant on.

--------------------------------------------------------------------------

> Lots of lots of fun. BTW, do you know how to install a .deb file without
> the benefit of a working dpkg/dselect/apt et al?

I did not until a day after I wrote that mail.  I work in a different
state than where I live, so I copied the .debs from the cd and looked it
up when I got home.   Only to find out I could not login to use what I
read about them..  It sucked...
I know about slackware pacakges and rpms, but I have never had to use
debian as a dist until I started working trying to figure out how to get
linux on my boxes.
Thanks for your quick tutorial, now I have it written down in my email so
I can find it faster should I forget what I read.

-------------------------------------------------------------------------


So.... in closing, thanks for the answers, and not killing me for sending
the mail in the first place.

  --Sir Ace



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Hi,

    I have HP 9000/809/k100. When my box boot from Debian 3.0r1 hppa CD
( Interact with IPL (Y or N)?> Y ), i've got message "Cannot find ENTRY
TEST Status= -4" and WARN 80F5 on LCD panel status. What is that means?
What do I do?
Where can I find other WARN description ?



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From: Buffalo Bill <buffalo@gediegos.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problems with Woody on 710.
Date: 26 Jan 2003 16:44:40 +0100
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Hi,

after searching the mailing list I've found some messages which reported
success in installing Woody on a 710. So I tried to install it. After
trying many many different lifimages, all ended up in the same result:
It hung during installation ( while mounting the root file system ).
Switching to another console ( which still worked ) showed me that
/sbin/dbootstrap and [scsi_eh_0] were both in state D.  

What did I do wrong ? Or to put it other words: How did you guys get
your 710s up'n'running ?

Thanks.



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On Sun, 26 Jan 2003 18:36:49 +0300
"Max" <max@avtlg.ru> wrote:

> Hi,
> 
>     I have HP 9000/809/k100. When my box boot from Debian 3.0r1 hppa CD
> ( Interact with IPL (Y or N)?> Y ), i've got message "Cannot find ENTRY
> TEST Status= -4" and WARN 80F5 on LCD panel status. What is that means?
> What do I do?
> Where can I find other WARN description ?
Read the PA/Linux boot HOWTO
http://pateam.esiee.fr/doc.html

and search the mailing-list for K-class PDC console issues
http://www.fr.parisc-linux.org/mailing-lists/

The message you see can be the result of several problems.

Most likely the kernel shipped with 3.0r1 doesn't support K's MUX.

You'll need a '-PDC-' image from
http://pateam.esiee.fr/cd-images/testing/

see http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017846.html


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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Subject: Re: [parisc-linux] Problems with Woody on 710.
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On 26 Jan 2003 16:44:40 +0100
"Buffalo Bill" <buffalo@gediegos.de> wrote:

> Hi,
> 
> after searching the mailing list I've found some messages which
> reported success in installing Woody on a 710. So I tried to install
> it. After trying many many different lifimages, all ended up in the
> same result: It hung during installation ( while mounting the root
> file system ). Switching to another console ( which still worked )
> showed me that/sbin/dbootstrap and [scsi_eh_0] were both in state D.
If you can switch to another console then the system _isn't_ hung.

I saw the same kind of problem on boxes with low amount of RAM (<32M).
Though the fact that [scsi_eh_0] is in D state isn't good at all. Maybe
you have a problem with your SCSI chain (hard disk, termination
problem...?)

> 
> What did I do wrong ? Or to put it other words: How did you guys get
> your 710s up'n'running ?
The 710 we have running here runs a preinstalled filesystem. That is to
say, the HD was prepared in another box and then plugged back into the
710.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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From: Buffalo Bill <buffalo@gediegos.de>
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Am Son, 2003-01-26 um 17.03 schrieb Thibaut VARENE:

> If you can switch to another console then the system _isn't_ hung.
Well, okay the System isn't hung, but the installer.

> I saw the same kind of problem on boxes with low amount of RAM (<32M).
My machine has only 48 MBs

> Though the fact that [scsi_eh_0] is in D state isn't good at all. Maybe
> you have a problem with your SCSI chain (hard disk, termination
> problem...?)
It doesn't seem to be a HW problem, since the machine was running HP-UX
10.20 perfectly until i tried to install woody. :-(

> The 710 we have running here runs a preinstalled filesystem. That is to
> say, the HD was prepared in another box and then plugged back into the
> 710.

Hmm... i have only one single PA-RISC machine :-(
 
Thank you for answering.




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An "init -4" is basically saying that the machine couldn't find a boot sector on the drive you tried to boot from.  In the case of a hard drive it means the drive is dead or the BDRA is corrupted.  In the case of your CD, it could mean that it wasn't burned correctly or like Thibaut said it was the wrong image file.  Heck you could even have a dead CDROM.  Some of the older CDROMs won't read burned CDs.  Since the K100 is pretty old you may be having a problem reading burned CDs.  When I tried to load from a burned CD on my E55's caddy load CDROM it wouldn't boot.  I then loaded the CD into an external HP DVD and it booted just fine.  So then I put the HPUX CD in the old CDROM and it boots and loads just fine.
derek
 Thibaut VARENE <varenet@esiee.fr> wrote:On Sun, 26 Jan 2003 18:36:49 +0300
"Max" wrote:

> Hi,
> 
> I have HP 9000/809/k100. When my box boot from Debian 3.0r1 hppa CD
> ( Interact with IPL (Y or N)?> Y ), i've got message "Cannot find ENTRY
> TEST Status= -4" and WARN 80F5 on LCD panel status. What is that means?
> What do I do?
> Where can I find other WARN description ?
Read the PA/Linux boot HOWTO
http://pateam.esiee.fr/doc.html

and search the mailing-list for K-class PDC console issues
http://www.fr.parisc-linux.org/mailing-lists/

The message you see can be the result of several problems.

Most likely the kernel shipped with 3.0r1 doesn't support K's MUX.

You'll need a '-PDC-' image from
http://pateam.esiee.fr/cd-images/testing/

see http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017846.html


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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<P>An "init -4" is basically saying that the machine couldn't find a boot sector on the drive you tried to boot from.&nbsp; In the case of a hard drive it means the drive is dead or the BDRA is corrupted.&nbsp; In the case of your CD, it could mean that it wasn't burned correctly or like Thibaut said it was the wrong image file.&nbsp; Heck you could even have a dead CDROM.&nbsp; Some of the older CDROMs won't read burned CDs.&nbsp; Since the K100 is pretty old you may be having a problem reading burned CDs.&nbsp; When I tried to load from a burned CD on my E55's caddy load CDROM it wouldn't boot.&nbsp; I then loaded the CD into an external HP DVD and it booted just fine.&nbsp; So then I put the HPUX CD in the old CDROM and it boots and loads just fine.
<P>derek
<P>&nbsp;<B><I>Thibaut VARENE &lt;<A href="mailto:varenet@esiee.fr">varenet@esiee.fr</A>&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">On Sun, 26 Jan 2003 18:36:49 +0300<BR>"Max" <MAX@AVTLG.RU>wrote:<BR><BR>&gt; Hi,<BR>&gt; <BR>&gt; I have HP 9000/809/k100. When my box boot from Debian 3.0r1 hppa CD<BR>&gt; ( Interact with IPL (Y or N)?&gt; Y ), i've got message "Cannot find ENTRY<BR>&gt; TEST Status= -4" and WARN 80F5 on LCD panel status. What is that means?<BR>&gt; What do I do?<BR>&gt; Where can I find other WARN description ?<BR>Read the PA/Linux boot HOWTO<BR><A href="http://pateam.esiee.fr/doc.html">http://pateam.esiee.fr/doc.html</A><BR><BR>and search the mailing-list for K-class PDC console issues<BR><A href="http://www.fr.parisc-linux.org/mailing-lists/">http://www.fr.parisc-linux.org/mailing-lists/</A><BR><BR>The message you 
 see can be the result of several problems.<BR><BR>Most likely the kernel shipped with 3.0r1 doesn't support K's MUX.<BR><BR>You'll need a '-PDC-' image from<BR><A href="http://pateam.esiee.fr/cd-images/testing/">http://pateam.esiee.fr/cd-images/testing/</A><BR><BR>see <A href="http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017846.html">http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017846.html</A><BR><BR><BR>Thibaut VARENE<BR>The PA/Linux ESIEE Team<BR><A href="http://pateam.esiee.fr/">http://pateam.esiee.fr/</A><BR>_______________________________________________<BR>parisc-linux mailing list<BR><A href="mailto:parisc-linux@lists.parisc-linux.org">parisc-linux@lists.parisc-linux.org</A><BR><A href="http://lists.parisc-linux.org/mailman/listinfo/pa
 risc-linux">http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</A></BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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Max wrote:

> Hi,
>
>    I have HP 9000/809/k100. When my box boot from Debian 3.0r1 hppa CD
> ( Interact with IPL (Y or N)?> Y ), i've got message "Cannot find ENTRY
> TEST Status= -4" and WARN 80F5 on LCD panel status. What is that means?
> What do I do?
> Where can I find other WARN description ?
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailmanhttp://us-support3.external.hp.com/listinfo/parisc-linux 
>
>
The forums on HP's ITRC, http://us-support3.external.hp.com, are a great 
resource for thing like this.

 From a google cache of ITRC:
*80F5*means that firmware can not initialize device. Stable storage 
message may mean NVRAM (setup) corruption. Try restoring defaults in the 
PDC, then tune it as it was before (paths, boot parameters, etc). Check 
if this code appears again
Eugeny

Regards,
Tom



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On Sun, Jan 26, 2003 at 12:17:31AM -0800, Sir Ace wrote:
> > uhm...what are you building that takes 4 days?
> > Not even glibc or xfree86 takes that long.
> 
> On 128 Meg of ram, and 1 100Mhz pa7200, openssl, openssh, 2.4.20 kernel,
> gcc 2.95.3, pine, and several other apps...  Remembering things don't
> normally build the first time around, and tweaks must be made...

ok. but you definitely are not building gcc 2.95.3 - we've never used that.
gcc 3.0 is the first release for parisc.

> Ok, then I will give credit to everyone who got it this far, I am happy I
> might be able to get the workstations here in my office off of HP/UX 10.20
> and into this decade, even if I have to setup NFS-root clients to do it.

I've been using b180 w/parisc-linux as desktop/debian mirror for almost 
a year now. only thing to crash the box was audio driver and test
kernels. But some things are missing that HPUX has: NetMeeting
support (T.120 specifically; GnomeMeeting supports H323), performance.

grant


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> You could try using "objdump -d" on the .o's, then diff'ing.  However
> the diff might be large.  Probably, comparing .S files would be
> best.  Don't use "-g".  However, if you find a difference that looks
> suspicious, "-g" will help you locate the source line.

well.... Grant and I did some more debugging on this.... here's what
we've tried so far:

- pty.c compiled completely with 3.2.2 => crash
- pty.c compiled completely with 3.0.4 => ok
- all the functions except pty_init compiled with 3.2.2, and with
pty_init compiled with 3.0 => ok
- pty.c compiled with 3.2.2 with only one of -fno-schedule-insns
  or -fno-schedule-insns2 => crash
- pty.c compiled with 3.2.2 with both -fno-schedule-insns and
  -fno-schedule-insns2 => ok

For reference, this is the original compile line:
gcc -D__KERNEL__ -I/usr/src/linux/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000   -nostdinc -I /usr/lib/gcc-lib/hppa-linux/3.2.2/include -DKBUILD_BASENAME=pty  -DEXPORT_SYMTAB -c pty.c

here are the corresponding assembly files:
without -fno-schedule-insns -fno-schedule-insns2
    http://www.parisc-linux.org/~tausq/pty.s-opt
with -fno-schedule-insns -fno-schedule-insns2
    http://www.parisc-linux.org/~tausq/pty.s-noopt
diff -ywb output
    http://www.parisc-linux.org/~tausq/pty.s.diff

still need to look at the asm output a bit more carefully....

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hello,

uname -a showed 2.4.17-32.  I wanted to get X windows working so reading faq
learned that I need to use newer kernel.  Well on doing apt-get install
kernel-image-2.4.18 I saw errors for depmod.  I chose abort[yes].  I was not
sure what to do?

can you guide?

Thanks.


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Hello,

I downloaded kernel source and build it but on start X windows one of errors
is no PCI support so am thinking to compile it with PCI support.  make
config I am not sure of all values to provide if one know exactly what I
need to set in one of files then it could be better.

Thanks.

cc: mmehta@elgin.edu


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Quick question...  I got the box back up and running and everything built.

In PCs it's make zImage/bzImage
on Alpha's it's make boot

make boot doesn't work, and make vmlinux doesn't seem to be right
either...

What is the target for a kernel build?




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> make boot doesn't work, and make vmlinux doesn't seem to be right
> either...
> 
> What is the target for a kernel build?

make vmlinux is the right target for harddisk boot. for network boot you
want make palo

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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I thought so, but I couldn't find the kernel, once it was built {I saw the
correct output}  Let me go back and looks and see if I can find it again.

On Mon, 27 Jan 2003, Randolph Chung wrote:

> > make boot doesn't work, and make vmlinux doesn't seem to be right
> > either...
> >
> > What is the target for a kernel build?
>
> make vmlinux is the right target for harddisk boot. for network boot you
> want make palo
>
> randolph
>



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Does vmlinuz work on hp?

On Mon, 27 Jan 2003, Randolph Chung wrote:

> > make boot doesn't work, and make vmlinux doesn't seem to be right
> > either...
> >
> > What is the target for a kernel build?
>
> make vmlinux is the right target for harddisk boot. for network boot you
> want make palo
>
> randolph
>



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Subject: Re: [parisc-linux] Kernel....
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Duh, I forgot that vmlinux gets dropped in /usr/src/linux...
my bad...

On Mon, 27 Jan 2003, Sir Ace wrote:

>
> Does vmlinuz work on hp?
>
> On Mon, 27 Jan 2003, Randolph Chung wrote:
>
> > > make boot doesn't work, and make vmlinux doesn't seem to be right
> > > either...
> > >
> > > What is the target for a kernel build?
> >
> > make vmlinux is the right target for harddisk boot. for network boot you
> > want make palo
> >
> > randolph
> >
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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From: Sir Ace <chandler@nateng.com>
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Subject: [parisc-linux] kernel hang.
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I compiled 2.4.20, and set it up to boot from the new kernel.
Unfortunately it hung, at the
'if this the last message you see' part...
I can't find anything in the FAQ, and I didn't find anything in the bug
liste... The machine is a J210, any ideas?  Or what kind of info should I
send?

On Mon, 27 Jan 2003, Sir Ace wrote:

>
> Duh, I forgot that vmlinux gets dropped in /usr/src/linux...
> my bad...
>
> On Mon, 27 Jan 2003, Sir Ace wrote:
>
> >
> > Does vmlinuz work on hp?
> >
> > On Mon, 27 Jan 2003, Randolph Chung wrote:
> >
> > > > make boot doesn't work, and make vmlinux doesn't seem to be right
> > > > either...
> > > >
> > > > What is the target for a kernel build?
> > >
> > > make vmlinux is the right target for harddisk boot. for network boot you
> > > want make palo
> > >
> > > randolph
> > >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: Re: [parisc-linux] kernel hang.
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How long did you let it wait?  Some of the machines prior to the C200 (my C360 doesn't do it either) seem to hang, but after 20 mins take off.  It's a bus walk issue that takes forever.  There was a patch for this that was posted recently to see if it resolved this issue.  Let it sit there for awile and see if it eventually starts booting.
derek
 Sir Ace <chandler@nateng.com> wrote:
I compiled 2.4.20, and set it up to boot from the new kernel.
Unfortunately it hung, at the
'if this the last message you see' part...
I can't find anything in the FAQ, and I didn't find anything in the bug
liste... The machine is a J210, any ideas? Or what kind of info should I
send?

On Mon, 27 Jan 2003, Sir Ace wrote:

>
> Duh, I forgot that vmlinux gets dropped in /usr/src/linux...
> my bad...
>
> On Mon, 27 Jan 2003, Sir Ace wrote:
>
> >
> > Does vmlinuz work on hp?
> >
> > On Mon, 27 Jan 2003, Randolph Chung wrote:
> >
> > > > make boot doesn't work, and make vmlinux doesn't seem to be right
> > > > either...
> > > >
> > > > What is the target for a kernel build?
> > >
> > > make vmlinux is the right target for harddisk boot. for network boot you
> > > want make palo
> > >
> > > randolph
> > >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>

_______________________________________________
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http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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<P>How long did you let it wait?&nbsp; Some of the machines prior to the C200 (my C360 doesn't do it either) seem to hang, but after 20 mins take off.&nbsp; It's a bus walk issue that takes forever.&nbsp; There was a patch for this that was posted recently to see if it resolved this issue.&nbsp; Let it sit there for awile and see if it eventually starts booting.
<P>derek
<P>&nbsp;<B><I>Sir Ace &lt;chandler@nateng.com&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px"><BR>I compiled 2.4.20, and set it up to boot from the new kernel.<BR>Unfortunately it hung, at the<BR>'if this the last message you see' part...<BR>I can't find anything in the FAQ, and I didn't find anything in the bug<BR>liste... The machine is a J210, any ideas? Or what kind of info should I<BR>send?<BR><BR>On Mon, 27 Jan 2003, Sir Ace wrote:<BR><BR>&gt;<BR>&gt; Duh, I forgot that vmlinux gets dropped in /usr/src/linux...<BR>&gt; my bad...<BR>&gt;<BR>&gt; On Mon, 27 Jan 2003, Sir Ace wrote:<BR>&gt;<BR>&gt; &gt;<BR>&gt; &gt; Does vmlinuz work on hp?<BR>&gt; &gt;<BR>&gt; &gt; On Mon, 27 Jan 2003, Randolph Chung wrote:<BR>&gt; &gt;<BR>&gt; &gt; &gt; &gt; make boot doesn't work, and make vmlinux doesn't 
 seem to be right<BR>&gt; &gt; &gt; &gt; either...<BR>&gt; &gt; &gt; &gt;<BR>&gt; &gt; &gt; &gt; What is the target for a kernel build?<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; make vmlinux is the right target for harddisk boot. for network boot you<BR>&gt; &gt; &gt; want make palo<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; randolph<BR>&gt; &gt; &gt;<BR>&gt; &gt;<BR>&gt; &gt; _______________________________________________<BR>&gt; &gt; parisc-linux mailing list<BR>&gt; &gt; parisc-linux@lists.parisc-linux.org<BR>&gt; &gt; http://lists.parisc-linux.org/mailman/listinfo/parisc-linux<BR>&gt; &gt;<BR>&gt;<BR>&gt; _______________________________________________<BR>&gt; parisc-linux mailing list<BR>&gt; parisc-linux@lists.parisc-linux.org<BR>&gt; http://lists.parisc-linux.org/mailman/listinfo/parisc-linux<
 BR>&gt;<BR><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] new gcc-default for hppa
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> well.... Grant and I did some more debugging on this.... here's what
> we've tried so far:

ok, here's what's happening apparently.... (with many thanks to Grant 
for a sharp eye :)

The pty_init() function does a number of structure copies. e.g.

init_termios is a 36-byte structure.

	pty_driver.init_termios = tty_std_termios;
	pty_driver.init_termios.c_iflag = 0;
	pty_driver.init_termios.c_oflag = 0;
	pty_driver.init_termios.c_cflag = B38400 | CS8 | CREAD;
	pty_driver.init_termios.c_lflag = 0;

gcc translates this to something like this:
    /* %r4 is &pty_driver */
    ldo 28(%r4),%r23
    ldi 28,%r21
    ldw,ma 4(%r22),%r20
    ldw,ma 4(%r22),%r19
    stw,ma %r20,4(%r23)
    addib,>= -8,%r21,.-12
    stw,ma %r19,4(%r23)
    /* ... */
    stw %r0,28(%r4)
    stw %r0,32(%r4)
    stw %r10,36(%r4)
    stw %r0,40(%r4)

When optimizations are turned on, gcc reschedules some of those final 
stw insns above the structure copy loop. When the structure copy 
happens, the values get overwritten. ick.

this was kind of interesting to debug :) but i have no idea how to fix
it. Dave? :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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In reference to a message from Randolph Chung, dated Jan 27:
> > well.... Grant and I did some more debugging on this.... here's what
> > we've tried so far:
> 
> ok, here's what's happening apparently.... (with many thanks to Grant 
> for a sharp eye :)

there's a temporary workaround in cvs now (2.4.20-pa23). For people
who have seen the crash with gcc-3.2, please give it a try and let us 
know how it goes.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi Ryan,

yes this solves the problem on the C180. It now takes around 15 seconds
after the first messages until it switches to framebuffer mode. 

Thanks,
	Christian 





Hello,

I finally found some time to test the updated bus walk code on a
parisc-2.4.20-pa22 system.  It works fine for me, but the C200 does not
exhibit the problems seen by others on this list.  I would appreciate if
someone with this problem could test this patch and see if it speeds the
boot time up.

This is the same patch I applied to the 2.5 tree several months ago.

Thanks,

- Ryan


 


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For heaven's sake! Everything is written and explained in the 
PARISC-Linux Boot HOWTO.
That goes for Mr Mehta as well...

http://pateam.esiee.fr/doc.html

HTH,

Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

On mardi, jan 28, 2003, at 05:23 Europe/Paris, Sir Ace wrote:

>
> Quick question...  I got the box back up and running and everything 
> built.
>
> In PCs it's make zImage/bzImage
> on Alpha's it's make boot
>
> make boot doesn't work, and make vmlinux doesn't seem to be right
> either...
>
> What is the target for a kernel build?
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>




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On Mon, Jan 27, 2003 at 11:46:07PM -0800, Randolph Chung wrote:
> In reference to a message from Randolph Chung, dated Jan 27:
> > > well.... Grant and I did some more debugging on this.... here's what
> > > we've tried so far:
> > 
> > ok, here's what's happening apparently.... (with many thanks to Grant 
> > for a sharp eye :)
> 
> there's a temporary workaround in cvs now (2.4.20-pa23). For people
> who have seen the crash with gcc-3.2, please give it a try and let us 
> know how it goes.

Works fine for me. 

Thanks VERY much :-)

-- 

patrick



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Hi all,

>
>On Mon, Jan 27, 2003 at 11:46:07PM -0800, Randolph Chung wrote:
>> In reference to a message from Randolph Chung, dated Jan 27:
>> > > well.... Grant and I did some more debugging on this.... here's what
>> > > we've tried so far:
>> > 
>> > ok, here's what's happening apparently.... (with many thanks to Grant
>
>> > for a sharp eye :)
>> 
>> there's a temporary workaround in cvs now (2.4.20-pa23). For people
>> who have seen the crash with gcc-3.2, please give it a try and let us

>> know how it goes.
>
>Works fine for me. 
>
>Thanks VERY much :-)
>
>-- 
>

Seems to works fine also on my b180.

Great,
    Joel


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Hi again,
>
>>
>>On Mon, Jan 27, 2003 at 11:46:07PM -0800, Randolph Chung wrote:
>>> In reference to a message from Randolph Chung, dated Jan 27:
>>> > > well.... Grant and I did some more debugging on this.... here's what
>>> > > we've tried so far:
>>> > 
>>> > ok, here's what's happening apparently.... (with many thanks to Grant
>>
>>> > for a sharp eye :)
>>> 
>>> there's a temporary workaround in cvs now (2.4.20-pa23). For people
>>> who have seen the crash with gcc-3.2, please give it a try and let us
>
>>> know how it goes.
>>
>>Works fine for me. 
>>
>>Thanks VERY much :-)
>>
>>-- 
>>
>
>Seems to works fine also on my b180.
>
Also works on the b2k and more test with ssh, telnet and ftp (do some small
transfer in both in-out).

Thanks again,
    Joel

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Hi Derek,

>
>
>How long did you let it wait?  Some of the machines prior to the C200 (my
>C360 doesn't do it either) seem to hang, but after 20 mins take off.  It's
>a bus walk issue that takes forever.  There was a patch for this that was
>posted recently to see if it resolved this issue.  Let it sit there for
awile
>and see if it eventually starts booting.

Afaik this a seperated patch (not yet check into our stream):

see <http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/018980.html>

as well as successfull first test (so I presume will be ci soon)

<http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/019015.html>

Good luck,
    Joel

PS: I also test it and it doesn't broken b2k and b180; so I think it could
be safely tested

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> gcc translates this to something like this:
>     /* %r4 is &pty_driver */
>     ldo 28(%r4),%r23
>     ldi 28,%r21
>     ldw,ma 4(%r22),%r20
>     ldw,ma 4(%r22),%r19
>     stw,ma %r20,4(%r23)
>     addib,>= -8,%r21,.-12
>     stw,ma %r19,4(%r23)
>     /* ... */
>     stw %r0,28(%r4)
>     stw %r0,32(%r4)
>     stw %r10,36(%r4)
>     stw %r0,40(%r4)
> 
> When optimizations are turned on, gcc reschedules some of those final 
> stw insns above the structure copy loop. When the structure copy 
> happens, the values get overwritten. ick.
> 
> this was kind of interesting to debug :) but i have no idea how to fix
> it. Dave? :)

I don't either at the moment.  It's memory aliasing problem.  It's
most likely not a problem in the backend.

Can you strip the above down to a simple testcase and file a GCC PR?
I will bump it to high-priority as it is a regression.

-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Sir Ace <chandler@nateng.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel hang.
Date: Tue, 28 Jan 2003 12:48:56 -0800 (PST)
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Xref: news.gmane.org gmane.linux.ports.parisc:17521

Ok, I could only wait 15 minutes or so before I bailed last night,   It
apparently came up though since it was at a screen saver {blank screen}
though the system wouldn't respond...

I rebooted it and watched, it did take about 20 minutes, and it did hang
afterwards here are the last few lines:

sr0: scsi-1 drive
Unifrom CD-ROM driver Revision 3.12
mice: PS/2 mouse common for all mice
HP SDC: HP SDC at 0xffe01000, IRQ 126 (NMI IRQ 125)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
HP SDC: MLC: Registering the System Domain Controller HIL MLC.
HP i8042 SDC + MSM-58321 RTC support loaded (RTC v 1.10d)
Net 4: Linux TCP/IP 1.0 for NET 4.0

I had to type that by hand so please excuse any mispellings.

Should I have not added something {Maybe the RTC Supprt?} when I setup my
kernel?

On Mon, 27 Jan 2003, Derek Engelhaupt wrote:

>
> How long did you let it wait?  Some of the machines prior to the C200 (my C360 doesn't do it either) seem to hang, but after 20 mins take off.  It's a bus walk issue that takes forever.  There was a patch for this that was posted recently to see if it resolved this issue.  Let it sit there for awile and see if it eventually starts booting.
> derek
>  Sir Ace <chandler@nateng.com> wrote:
> I compiled 2.4.20, and set it up to boot from the new kernel.
> Unfortunately it hung, at the
> 'if this the last message you see' part...
> I can't find anything in the FAQ, and I didn't find anything in the bug
> liste... The machine is a J210, any ideas? Or what kind of info should I
> send?
>
> On Mon, 27 Jan 2003, Sir Ace wrote:
>
> >
> > Duh, I forgot that vmlinux gets dropped in /usr/src/linux...
> > my bad...
> >
> > On Mon, 27 Jan 2003, Sir Ace wrote:
> >
> > >
> > > Does vmlinuz work on hp?
> > >
> > > On Mon, 27 Jan 2003, Randolph Chung wrote:
> > >
> > > > > make boot doesn't work, and make vmlinux doesn't seem to be right
> > > > > either...
> > > > >
> > > > > What is the target for a kernel build?
> > > >
> > > > make vmlinux is the right target for harddisk boot. for network boot you
> > > > want make palo
> > > >
> > > > randolph
> > > >
> > >
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
> ---------------------------------
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From: Sir Ace <chandler@nateng.com>
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Subject: [parisc-linux] Kernel compile errors...
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I got these compiling the 2.4.20-pa23 tree:

via-pmu.c:36:22: asm/prom.h: No such file or directory
via-pmu.c:41:26: asm/sections.h: No such file or directory
via-pmu.c:44:30: asm/pmac_feature.h: No such file or directory
via-pmu.c:47:26: asm/sections.h: Success
via-pmu.c:48:26: asm/cputable.h: No such file or directory
via-pmu.c:49:22: asm/time.h: No such file or directory

It didn't halt the compile but I did see it go by.



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From: Sir Ace <chandler@nateng.com>
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Subject: Re: [parisc-linux] Kernel compile errors...
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Oops this was on the make dep, sorry.

On Tue, 28 Jan 2003, Sir Ace wrote:

>
> I got these compiling the 2.4.20-pa23 tree:
>
> via-pmu.c:36:22: asm/prom.h: No such file or directory
> via-pmu.c:41:26: asm/sections.h: No such file or directory
> via-pmu.c:44:30: asm/pmac_feature.h: No such file or directory
> via-pmu.c:47:26: asm/sections.h: Success
> via-pmu.c:48:26: asm/cputable.h: No such file or directory
> via-pmu.c:49:22: asm/time.h: No such file or directory
>
> It didn't halt the compile but I did see it go by.
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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Sir Ace wrote:
> I got these compiling the 2.4.20-pa23 tree:
> 
> via-pmu.c:36:22: asm/prom.h: No such file or directory
> via-pmu.c:41:26: asm/sections.h: No such file or directory
> via-pmu.c:44:30: asm/pmac_feature.h: No such file or directory
> via-pmu.c:47:26: asm/sections.h: Success
> via-pmu.c:48:26: asm/cputable.h: No such file or directory
> via-pmu.c:49:22: asm/time.h: No such file or directory
> 
> It didn't halt the compile but I did see it go by.

Makes sense. That's a driver for the powerPC/mac adb bus. How you have 
it selected I won't guess at..


-- 
____               .:.                 ____
Bryan W. Headley - bwheadley@earthlink.net



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From: tausq@debian.org
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Subject: [parisc-linux] [hppa-linux, gcc-3.2 regression] structure copy clobbers stores to substructure
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>Submitter-Id:	net
>Originator:	Randolph Chung
>Organization:	Debian
>Confidential:	no
>Synopsis:	Structure copy clobbers subsquent stores to structure
>Severity: serious
>Priority:	medium
>Category:	optimization
>Class:		wrong-code
>Release:	3.2.2 20030124 (Debian prerelease)
>Environment:

System: Linux legolas 2.4.20-pa18 #110 Mon Jan 27 23:44:18 PST 2003 parisc unknown unknown GNU/Linux
Architecture: parisc

        
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,pascal,objc,ada --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.2 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-clocale=gnu --enable-objc-gc hppa-linux
>Description:
	When -O2 is applied, the attach program generates incorrect output.
This test case is extracted from a miscompilation in the linux kernel. 
The code does a structure copy then an assignment to a member of the 
structure. At -O2 (-O1 -fschedule-insns) the assignment is moved before
the structure copy, and subsequently gets clobbered.
>How-To-Repeat:
Compile the following piece of code with gcc-3.2 -O2

/*
** Test to reproduce storing into a substructure getting
** clobbered by a structure copy.
**
** Compile with: gcc -O2 -o pty_test pty_test.c
*/

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>

typedef unsigned char cc_t;
typedef unsigned int tcflag_t;
typedef unsigned int __kernel_size_t;
typedef int __kernel_ssize_t;
typedef unsigned short kdev_t;

struct termios {
	tcflag_t c_iflag;
	tcflag_t c_oflag;
	tcflag_t c_cflag;
	tcflag_t c_lflag;
	cc_t c_line;
	cc_t c_cc[19];
};

struct tty_driver {
	int magic;
	const char *driver_name;
	const char *name;
	int name_base;
	short major;
	short minor_start;
        short num;
	short type;
	short subtype;
	struct termios init_termios;
	int flags;
	int *refcount;
};

struct termios tty_std_termios = {1, 2, 3, 4, 5};
static int pty_refcount;
static struct tty_driver pty_driver;

int main(void)
{
        memset(&pty_driver, 0, sizeof(struct tty_driver));
	pty_driver.magic = 0x5402;
	pty_driver.driver_name = "pty_master";

	pty_driver.name = "pty";

	pty_driver.major = 2;
	pty_driver.minor_start = 0;
	pty_driver.num = 256;
	pty_driver.type = 0x0004;
	pty_driver.subtype = 0x0001;

	pty_driver.init_termios = tty_std_termios;
	pty_driver.init_termios.c_iflag = 0;
	pty_driver.init_termios.c_oflag = 0;
	pty_driver.init_termios.c_cflag = 0000017 | 0000060 | 0000200;
	pty_driver.init_termios.c_lflag = 0;

	pty_driver.refcount = &pty_refcount;
	pty_driver.flags = 0x0002 | 0x0004;

	/* clobber the arg registers so the c_lflag value gets reloaded */ 
	close(10);

	printf("pty_driver.init_termios.c_lflag = %d (should be 0)\n", 
		pty_driver.init_termios.c_lflag);

	return 0;
}


>Fix:
	putting a reorder barrier (e.g. asm("")) before the store to 
    c_lflag will workaround the bug


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Xref: news.gmane.org gmane.linux.ports.parisc:17526

PA,

Problem:

- GCC used to export a symbol for __clz_tab (GLOBAL DEFAULT)
- Everything in debian is being built with newer tools (GCC 3.2).
- Symbol is no longer leaked (LOCAL HIDDEN)
- Libraries that had the leadked symbol are rebuilt (e.g. libcrypto)
- Binaries that had relocations against the symbol are failing (e.g.
  wget)

Solution:

- Create a libgcc-compat in glibc for the symbol __clz_tab
	= Various arches have them for certain symbols that were leaked
	= from GCC when we the GNU tools didn't have ".hidden"
	= So examples exist...
- Test the solution to see that atleast "wget" works.
- Put it into Debians glibc as a dpatch.
- Submit upstream for fame and glory.

I'm writing a paper and doing research until Saturday.

If someone feels gutsy enough to attempt a fix, please have at it... 
If not, it's currently the highest priority item on my TODO.

Cheers,
Carlos.



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>Submitter-Id:	net
>Originator:	Randolph Chung
>Organization:	Debian
>Confidential:	no
>Synopsis:	cc1 segfaults @ -O2 when building a simple function
>Severity:	serious
>Priority:	medium
>Category:	optimization
>Class:		ice-on-legal-code
>Release:	3.2.2 20030124 (Debian prerelease) (Debian testing/unstable)
>Environment:
System: Linux legolas 2.4.20-pa18 #110 Mon Jan 27 23:44:18 PST 2003 parisc unknown unknown GNU/Linux
Architecture: parisc

	<machine, os, target, libraries (multiple lines)>
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,pascal,objc,ada --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.2 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-clocale=gnu --enable-objc-gc hppa-linux
>Description:
	Self-explanatory. Compiles fine with gcc-3.0.4 and gcc-3.3 (20030118)

>How-To-Repeat:
	Compile this function with gcc -O2 -c
	(simplied from a failure in building lcdproc)

void foo(int len)
{
	while (len >= 8) len -= 8;
	if(!len) return;
}

>Fix:
	none


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Hello

I want to start using Linux on HP Server and tried to install it on a
D210. It boots, but stops to tell me that I have to change the console.
I looked in the FAQ's and other documentation and only found references
to HP workstations. Is there a How To for HP Server somewhere
Thank you


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Subject: Re: [parisc-linux] We need our own libgcc-compat for a leaked __clz_tab
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> Problem:
> 
> - GCC used to export a symbol for __clz_tab (GLOBAL DEFAULT)
> - Everything in debian is being built with newer tools (GCC 3.2).
> - Symbol is no longer leaked (LOCAL HIDDEN)
> - Libraries that had the leadked symbol are rebuilt (e.g. libcrypto)
> - Binaries that had relocations against the symbol are failing (e.g.
>   wget)
> 
> Solution:
> 
> - Create a libgcc-compat in glibc for the symbol __clz_tab
> 	= Various arches have them for certain symbols that were leaked
> 	= from GCC when we the GNU tools didn't have ".hidden"
> 	= So examples exist...
> - Test the solution to see that atleast "wget" works.
> - Put it into Debians glibc as a dpatch.
> - Submit upstream for fame and glory.

As I said, this is a generic problem affecting all GCC ports.  The
correct solution probably isn't adding the symbol to a PA specific
libgcc-compat in glibc.  I think the matter needs discussion on
gcc@gcc.gnu.org.  I'm not sure if there is a reason for hiding this
symbol.  I would file a GCC PR.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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http://pateam.esiee.fr/doc.html

Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

--=20
How funny it is to repeat the same URLs in such a short amount of
time.

-------------------
> Hello
>=20
> I want to start using Linux on HP Server and tried to install it on
a
> D210. It boots, but stops to tell me that I have to change the
console.
> I looked in the FAQ's and other documentation and only found
references
> to HP workstations. Is there a How To for HP Server somewhere
> Thank you
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>=20
>=20
Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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Hi Randolph,

As per your request, I do spent some time to compose this 'small' test case
bases on simplified parts of squid:

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

/* getpid(), geteuid()  */
#include <sys/types.h>
#include <unistd.h>

/* setgroups() */
#include <grp.h>

/* mkdir() */
#include <sys/stat.h>
#define MAXPATHLEN 256

/* waitpid() */
#include <sys/wait.h>


char *effectiveUser="proxy";
uid_t effectiveUserID=13;
gid_t effectiveGroupID=13;

/* Define if you have the setgroups function.  */
#define HAVE_SETGROUPS 1

/*
 * Yay! Another Linux brokenness.  Its not good enough to know that
 * setresuid() exists, because RedHat 5.0 declare setresuid() but
 * doesn't implement it.
 */
#define HAVE_SETRESUID 1

#undef HAVE_SETRESUID
/*
 */

/*
man setresuid NOTES:
       Under  HP-UX  and  FreeBSD the prototype is found in <unistd.h>. 
Under
       Linux there is so far no include file giving the prototype - this
is  a
       glibc bug. Programs using this system call must add the prototype
them-
       selves.
*/
#ifdef HAVE_SETRESUID
/* because man setresuid mentionned it as a lake of linux? */
int
setresuid(uid_t ruid, uid_t euid, uid_t suid);
#endif

/* Define if you have the seteuid function.  */
#define HAVE_SETEUID 1

/*
 * xstrerror() - strerror() wrapper
 */
const char *
xstrerror(void)
{
    static char xstrerror_buf[BUFSIZ];
    static char strerror_buf[BUFSIZ];

    snprintf(strerror_buf, BUFSIZ, "%s", strerror(errno));
   
    if (strerror_buf) 
	snprintf(xstrerror_buf, BUFSIZ, "(%d) %s", errno, strerror_buf);
    else
        snprintf(xstrerror_buf, BUFSIZ, "(%d) Unknown", errno); 
    return xstrerror_buf;
}

/* leave a privilegied section. (Give up any privilegies)
 * Routines that need privilegies can rap themselves in enter_suid()
 * and leave_suid()
 * To give upp all posibilites to gain privilegies use no_suid()
 */
void
leave_suid(void)
{
    fprintf(stderr, "leave_suid: PID %d called\n", (int) getpid());
    if (geteuid() != 0)
	return;
    /* Started as a root, check suid option */
    if (effectiveUser == NULL)
	return;
#if HAVE_SETGROUPS
    setgroups(1, &effectiveGroupID);
#endif
    if (setgid(effectiveGroupID) < 0)
	fprintf(stderr, "ALERT: setgid: %s\n", xstrerror());
    fprintf(stderr, "leave_suid: PID %d giving up root, becoming '%s'\n",
(int) getpid(), effectiveUser);
#if HAVE_SETRESUID
    if (setresuid(effectiveUserID, effectiveUserID, 0) < 0)
	fprintf(stderr, "ALERT: setresuid: %s\n", xstrerror());
#elif HAVE_SETEUID
    if (seteuid(effectiveUserID) < 0)
	fprintf(stderr, "ALERT: seteuid: %s\n", xstrerror());
#else
    if (setuid(effectiveUserID) < 0)
	fprintf(stderr, "ALERT: setuid: %s\n", xstrerror());
#endif
}

static void
setEffectiveUser(void)
{
    leave_suid();		/* Run as non privilegied user */
    if (geteuid() == 0) {
	fprintf(stderr, "Squid is not safe to run as root!  If you must\n");
	fprintf(stderr, "start Squid as root, then you must configure\n");
	fprintf(stderr, "it to run as a non-priveledged user with the\n");
	fprintf(stderr, "'cache_effective_user' option in the config file.\n");
	fprintf(stderr, "Don't run Squid as root, set 'cache_effective_user'!\n");
        abort();
    }
}

static int
storeUfsDirCreateDirectory(const char *path)
{
    int created = 0;

    if (0 != mkdir(path, 0755)) {
	fprintf(stderr,	"Failed to make swai directory %s: %s\n",
	    path, xstrerror());
    }
    return created;
}

static void
storeUfsDirCreateSwapSubDirs(char * Path)
{
    int i, k;
    static char name[MAXPATHLEN];
    for (i = 0; i < 16; i++) {
	snprintf(name, MAXPATHLEN, "%s/%02X", Path, i);
        storeUfsDirCreateDirectory(name);
	fprintf(stderr, "Making directories in %s\n", name);
	for (k = 0; k < 32; k++) {
	    snprintf(name, MAXPATHLEN, "%s/%02X/%02X", Path, i, k);
            storeUfsDirCreateDirectory(name);
	}
    }
}


static void
storeUfsDirNewfs(char * Path)
{
    fprintf(stderr, "Creating swap space in %s\n", Path);
    storeUfsDirCreateSwapSubDirs(Path);
}

void
storeCreateSwapDirectories(void)
{
    int i;
    pid_t pid;
    int status;
    for (i = 0; i < 1; i++) {
	if (fork())
	    continue;
        storeUfsDirNewfs("/var/spool/squid");
	exit(0);
    }
    do {
	pid = waitpid(-1, &status, 0);
    } while (pid > 0 || (pid < 0 && errno == EINTR));
}


int
main(int argc, char **argv)
{
    /* only opt_create_swap_dirs */

    setEffectiveUser();
    fprintf(stderr, "Creating Swap Directories\n");
    storeCreateSwapDirectories();

    return 0;
}

A. On a testing debian system (ie gcc-3.0 3.0.4-10 && libc6 2.2.5-14.3) and
the very last kernel 2.4.20-pa23:

Compile with gcc -O 2 -Wall -D_REENTRANT foo.c -o foo

[ Create a user and a group named proxy with id 13 for both ]

First as it is ./foo would failled to fork() immediately with 'Segmentation
fault'.

Secondly edit foo.c to comment out #undifined HAVE_SETRESUID; it would reach
to fork without problem (eventhough it did not reach to create dir)

B. On an unstable debian (ie gcc-3.2 3.2.2-0pre6 && libc6 2.3.1-10) running
the same kernel: this problem doesn't occure.

hth,
    Joel


>-- Original Message --
>From: Randolph Chung <tausq@debian.org>
>To: Matthew Wilcox <willy@debian.org>
>Cc: Luigi Gangitano <luigi@debian.org>,
>	parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] Issues with seteuid()?
>Reply-To: Randolph Chung <tausq@debian.org>
>Date: Sun, 12 Jan 2003 19:11:09 -0800
>
>
>> I wonder how it can be a problem at all.  The kernel implements only
>> sys_setresuid() and i would imagine that glibc implements both
>> seteuid() and setresuid() in terms of this system call.
>> 
>> Perhaps someone who's willing to touch glibc would care to comment?
>
>seteuid() works fine in simple tests. i don't think it's seteuid...
>something else is broken. can someone provide a simple test case for the
>segfault?
>
>randolph
>-- 
>Randolph Chung
>Debian GNU/Linux Developer, hppa/ia64 ports
>http://www.tausq.org/
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


*********************************************
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From: Thibaut VARENE <varenet@esiee.fr>
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Xref: news.gmane.org gmane.linux.ports.parisc:17532

Hi,

I'm just suggesting you should read the mailing-list archive before=20
posting,
and also check the official PA-RISC/Linux website:

http://www.fr.parisc-linux.org/

which contains lots of useful data about the "How & Why" Linux on=20
PA-RISC (including
a FAQ, some HOWTOs, technical documentation and related links).

You would have found there the link to our website and to our=20
PA-RISC/Linux Boot HOWTO,
and eventually the answer to your question.

Obviously, since you were not the first person to ask that kind of=20
question in the last
couple of weeks, I might have become a bit gruff in my answers.
No hurt intended.

One last - but essential - thing: NEVER answer directly to a mail=20
posted on the m-l.
At least, ALWAYS CC the m-l, so that everyone may take advantage of=20
(and participate to)
the exchange; and to feed the archive for later questions.

Hope that helps,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

On mercredi, jan 29, 2003, at 18:22 Europe/Paris, Lehner Hartwig wrote:

> I do not quite understand what you mean with that answer but thanks=20
> for answering anyway.
>
>> -----Urspr=FCngliche Nachricht-----
>> Von: Thibaut VARENE [mailto:varenet@esiee.fr]
>> Gesendet: Mittwoch, 29. J=E4nner 2003 17:58
>> An: Lehner Hartwig
>> Cc: parisc-linux@lists.parisc-linux.org
>> Betreff: Re: [parisc-linux] Installing on a HP Server D200/210
>> Console Problem
>>
>>
>> http://pateam.esiee.fr/doc.html
>>
>> Thibaut VARENE
>> The PA/Linux ESIEE Team
>> http://pateam.esiee.fr/
>>
>> --=20
>> How funny it is to repeat the same URLs in such a short amount of
>> time.
>>
>> -------------------
>>> Hello
>>>
>>> I want to start using Linux on HP Server and tried to install it on
>> a
>>> D210. It boots, but stops to tell me that I have to change the
>> console.
>>> I looked in the FAQ's and other documentation and only found
>> references
>>> to HP workstations. Is there a How To for HP Server somewhere
>>> Thank you
>>> _______________________________________________
>>> parisc-linux mailing list
>>> parisc-linux@lists.parisc-linux.org
>>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>>
>>>
>> Thibaut VARENE
>> PA/Linux ESIEE Team
>> http://pateam.esiee.fr/
>>
>>
>
>




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Xref: news.gmane.org gmane.linux.ports.parisc:17533

Where was the patch posted?  I don't have access to the CVS tree so I
downloaded the pa23 tarball {which was newer that the pa22 I was using} it
is hanging too...

I'm assuming your patch-2.4.20-pa23.diff.gz is to patch from pa22 to
pa23..

Thanks.

On Mon, 27 Jan 2003, Derek Engelhaupt wrote:

>
> How long did you let it wait?  Some of the machines prior to the C200 (my C360 doesn't do it either) seem to hang, but after 20 mins take off.  It's a bus walk issue that takes forever.  There was a patch for this that was posted recently to see if it resolved this issue.  Let it sit there for awile and see if it eventually starts booting.
> derek
>  Sir Ace <chandler@nateng.com> wrote:
> I compiled 2.4.20, and set it up to boot from the new kernel.
> Unfortunately it hung, at the
> 'if this the last message you see' part...
> I can't find anything in the FAQ, and I didn't find anything in the bug
> liste... The machine is a J210, any ideas? Or what kind of info should I
> send?
>
> On Mon, 27 Jan 2003, Sir Ace wrote:
>
> >
> > Duh, I forgot that vmlinux gets dropped in /usr/src/linux...
> > my bad...
> >
> > On Mon, 27 Jan 2003, Sir Ace wrote:
> >
> > >
> > > Does vmlinuz work on hp?
> > >
> > > On Mon, 27 Jan 2003, Randolph Chung wrote:
> > >
> > > > > make boot doesn't work, and make vmlinux doesn't seem to be right
> > > > > either...
> > > > >
> > > > > What is the target for a kernel build?
> > > >
> > > > make vmlinux is the right target for harddisk boot. for network boot you
> > > > want make palo
> > > >
> > > > randolph
> > > >
> > >
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
> ---------------------------------
> Do you Yahoo!?
> Yahoo! Mail Plus - Powerful. Affordable. Sign up now



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On Wed, Jan 29, 2003 at 11:11:51AM -0800, Sir Ace wrote:
> Where was the patch posted?

Normally patches should be posted on ftp.parisc-linux.org/patches.
But in this case it's in the mail archive:

http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/018980.html

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:17535

Hi Miten,

Please don't remove parisc-linux@lists.parisc-linux.org from the receivers =
in the future.

=46rom your dmesg this is the important part:

STI GSC/PCI graphics driver version 0.9
STI byte mode ROM at f4000000, hpa at f4000000
STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071B
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio: 0xf4100000

So, if you change the in SubSection "Display" the Depth to 32 it should wor=
k:
Example:
    SubSection "Display"
                Depth           32               # 8, 16, 24 or 32 (acordin=
g to "fbset -i")
                Modes           "1280x1024"     # "1024x768" or "1280x1024"
        EndSubSection

You don't seem to have HIL, but IIRC the ps/2 driver uses the same /dev/inp=
ut/mice=20
interface.

Regards,
Helge




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I quickly browsed /patches, but there doesn't seem to be anything that
tells about them, {mor ethan thier names} or if they have already been
includeded in a tree....
Is there a list of some sort or should I just use all the patches?




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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: X windows setup on C110 with woody and kernel-2.4.20pa22
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On Wed, 29 Jan 2003 20:56:36 +0100
"Helge Deller" <deller@gmx.de> wrote:

> Hi Miten,
> 

> 
> You don't seem to have HIL, but IIRC the ps/2 driver uses the same /dev/input/mice 
> interface.

Well, in 2.4 kernel the PS/2 driver use /dev/psaux, since it doesn't comply with the new input layer. In 2.5, the new driver uses /dev/input/mice.

HTH,

Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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This message is in MIME format. Since your mail reader does not understand
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------_=_NextPart_000_01C2C7E3.790A7FB0
Content-Type: text/plain;
	charset="iso-8859-1"

Hey,

I tried it again and find here xfree log.  I was advised to take X window
setup to debian-hppa so I did not post to parisc list.  Also find
XF86Config-4.  

Actually what I just did I had done that in very first attempt ;-).  Thibaut
VARENE pointed out some thing which I have not tried to use /dev/psaux in
place of /dev/input/mice.  Just shall wait for your reponse.

thanks.

Miten.



-----Original Message-----
From: Helge Deller [mailto:deller@gmx.de]
Sent: Wednesday, January 29, 2003 1:57 PM
To: Mehta, Miten
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: X windows setup on C110 with woody and kernel-2.4.20pa22


Hi Miten,

Please don't remove parisc-linux@lists.parisc-linux.org from the receivers
in the future.

>From your dmesg this is the important part:

STI GSC/PCI graphics driver version 0.9
STI byte mode ROM at f4000000, hpa at f4000000
STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071B
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio: 0xf4100000

So, if you change the in SubSection "Display" the Depth to 32 it should
work:
Example:
    SubSection "Display"
                Depth           32               # 8, 16, 24 or 32 (acording
to "fbset -i")
                Modes           "1280x1024"     # "1024x768" or "1280x1024"
        EndSubSection

You don't seem to have HIL, but IIRC the ps/2 driver uses the same
/dev/input/mice 
interface.

Regards,
Helge



------_=_NextPart_000_01C2C7E3.790A7FB0
Content-Type: application/octet-stream;
	name="XFree86.0.log"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="XFree86.0.log"


This is a pre-release version of XFree86, and is not supported in any
way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
please check the latest version in the XFree86 CVS repository
(http://www.XFree86.Org/cvs)

XFree86 Version 4.1.0.1 / X Window System
(protocol Version 11, revision 0, vendor release 6510)
Release Date: 21 December 2001
	If the server is older than 6-12 months, or if your card is
	newer than the above date, look for a newer version before
	reporting problems.  (See http://www.XFree86.Org/FAQ)
Build Operating System: Linux 2.4.16-64 parisc64 [ELF]=20
(=3D=3D) Log file: "/var/log/XFree86.0.log", Time: Wed Jan 29 22:13:09 =
2003
(=3D=3D) Using config file: "/etc/X11/XF86Config-4"
Markers: (--) probed, (**) from config file, (=3D=3D) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(=3D=3D) ServerLayout "Default Layout"
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "Generic Monitor"
(**) |   |-->Device "Generic Video Card"
(**) |-->Input Device "Keyboard"
(=3D=3D) Keyboard: CustomKeycode disabled
(**) |-->Input Device "Mouse"
(WW) The directory "/usr/lib/X11/fonts/cyrillic" does not exist.
	Entry deleted from font path.
(**) FontPath set to =
"unix/:7100,/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts/100dpi/:unscaled,=
/usr/lib/X11/fonts/75dpi/:unscaled,/usr/lib/X11/fonts/Type1,/usr/lib/X11=
/fonts/Speedo,/usr/lib/X11/fonts/100dpi,/usr/lib/X11/fonts/75dpi"
(=3D=3D) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(--) using VT number 7

(WW) Cannot open APM
(EE) No OS PCI support available
(II) Addressable bus resource ranges are
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
	[1] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) OS-reported resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) OS-reported resource ranges after removing overlaps with PCI:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) All system resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
	mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
(II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, =
pm2v,
	pm2, pm, 300sx, 500tx, mx, delta
	S3VIdentify
(II) S3VIRGE: driver (version 1.6.13) for S3 ViRGE chipsets: virge, =
86C325,
	virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
	86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
	trio 3d/2x, 86C362, 86C368
(II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
	SIS300, SIS630, SIS540
(II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
	Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
	Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
	TwisterK
(II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, =
cyber9388,
	cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
	tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
	providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
	cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
	cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, =
ct65525,
	ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
	ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
	3dfx Voodoo3, 3dfx Voodoo5
(II) FBDev: driver for framebuffer: fbdev, afb
(II) ATI: ATI driver (version 6.3.6) for chipsets: ati
(II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
	ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
	ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
	ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
	ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
	ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
	ATI Rage 128 Mobility ML (AGP)
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
	ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
	ATI Radeon VE (AGP)
(II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : =
imstt128,
	imstt3d
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) v4l driver for Video4Linux
	S3VProbe begin
(II) FBDev(0): using default device
(II) Running in FRAMEBUFFER Mode
(EE) FBDev(0): No Display subsection in Screen section "Default Screen" =
for depth/fbbpp 24/24
(EE) Screen(s) found, but none have a usable configuration.

Fatal server error:
no screens found

When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to submit@bugs.debian.org.


------_=_NextPart_000_01C2C7E3.790A7FB0
Content-Type: application/octet-stream;
	name="XF86Config-4"
Content-Disposition: attachment;
	filename="XF86Config-4"

#
# This XFree86 config files is usable for HIL and USB keyboards and mice
# by Helge Deller <deller@gmx.de> 2002-07-06
#
# Please adjust the "depth" and "Modes" entries below in the Screen Section
# acording to your system configuration.
# 
# EXAMPLE:
# Run the following command on the bash prompt:
#
# dmesg | grep stifb
#
# and my system gives:
# fb0: stifb 1280x1024-8 frame buffer device, id: 2b4ded6d, mmio: 0xf8100000
# so I'm using "Depth 8" and "Modes 1280x1024" below.
#

Section "Files"
	FontPath	"unix/:7100"			# local font server
	# if the local font server has problems, we can fall back on these
	FontPath	"/usr/lib/X11/fonts/misc"
	FontPath	"/usr/lib/X11/fonts/cyrillic"
	FontPath	"/usr/lib/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/Type1"
	FontPath	"/usr/lib/X11/fonts/Speedo"
	FontPath	"/usr/lib/X11/fonts/100dpi"
	FontPath	"/usr/lib/X11/fonts/75dpi"
EndSection

Section "Module"
	Load	"GLcore"
	Load	"bitmap"
	Load	"dbe"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"pex5"
	Load	"record"
	Load	"speedo"
	Load	"type1"
	Load	"vbe"
	Load	"xie"
EndSection

Section "InputDevice"
	Identifier	"Keyboard"
	Driver		"keyboard"
	Option		"CoreKeyboard"
#	Option		"XkbLayout"	"de"
EndSection

Section "InputDevice"
	Identifier	"Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
	Option		"ZAxisMapping"		"4 5"
EndSection

					     
Section "Device"
	Identifier	"Generic Video Card"
	Driver		"fbdev"
	Option		"UseFBDev"		"true"
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	HorizSync	30-70
	VertRefresh	50-160
	Option		"DPMS"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Generic Video Card"
	Monitor		"Generic Monitor"
	SubSection "Display"
		Depth		32		# 8, 16, 24 or 32
		Modes		"1280x1024"	# "1024x768" or "1280x1024"
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Keyboard"
	InputDevice	"Mouse"
EndSection

Section "DRI"
	Mode	0666
EndSection


------_=_NextPart_000_01C2C7E3.790A7FB0--


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Subject: [parisc-linux] serial console
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Xref: news.gmane.org gmane.linux.ports.parisc:17539

Hi all, 

	I am almost scared to ask this question, but I really dont have any
	other alternatives. 

	HP VISUALIZE - J2240 
	latest source
	latesst gcc
	kernel config - basic
	
	In any case I have the latest compilers and the latest source. I
	have gone through the booting howto and have successfully switched
	my console. Yet I cannot get any messages after : 

	Branching to kernel entry point....

	The make palo went fine, at which time i added my ramdisk and what
	not. I suspect it has something to do with my kernel since I have
	gotten the lifimage from debian and it works without a problem. 

	I must be missing something here, any help anyone could provide
	would be greatly appreciated. 

	Thanks,	

-- 
Aaron St. Pierre			tel: 978.828.6177
asp@ungod.com

 Wow, I'm being shot at from both sides.  That means I *must* be right.  :-)
              -- Larry Wall in <199710211959.MAA18990@wall.org>


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Subject: Re: [parisc-linux] RE: X windows setup on C110 with woody and kernel-2.4.20pa22
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Mehta, Miten wrote:
> Hey,
> 
> I tried it again and find here xfree log.  I was advised to take X window
> setup to debian-hppa so I did not post to parisc list.  Also find
> XF86Config-4.  
> 
> Actually what I just did I had done that in very first attempt ;-).  Thibaut
> VARENE pointed out some thing which I have not tried to use /dev/psaux in
> place of /dev/input/mice.  Just shall wait for your reponse.
> 
> thanks.
> 
> Miten.
> 
> 
> 
> -----Original Message-----
> From: Helge Deller [mailto:deller@gmx.de]
> Sent: Wednesday, January 29, 2003 1:57 PM
> To: Mehta, Miten
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: X windows setup on C110 with woody and kernel-2.4.20pa22
> 
> 
> Hi Miten,
> 
> Please don't remove parisc-linux@lists.parisc-linux.org from the receivers
> in the future.
> 
>>From your dmesg this is the important part:
> 
> STI GSC/PCI graphics driver version 0.9
> STI byte mode ROM at f4000000, hpa at f4000000
> STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
> STI device: HPA4071B
> Console: switching to colour frame buffer device 160x64
> fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio: 0xf4100000
> 
> So, if you change the in SubSection "Display" the Depth to 32 it should
> work:
> Example:
>     SubSection "Display"
>                 Depth           32               # 8, 16, 24 or 32 (acording
> to "fbset -i")
>                 Modes           "1280x1024"     # "1024x768" or "1280x1024"
>         EndSubSection
> 
> You don't seem to have HIL, but IIRC the ps/2 driver uses the same
> /dev/input/mice 
> interface.
> 
> Regards,
> Helge
> 
>

Hi Miten,

   Your log now complains there is no Depth 24 section.  So, I suggest to ADD that section just above/below the Depth 32 section.

Example:

Section "Screen"
	Identifier	"Default Screen"
	Device		"Generic Video Card"
	Monitor		"Generic Monitor"
	SubSection "Display"
		Depth		24		# 8, 16, 24 or 32
		Modes		"1280x1024"	# "1024x768" or "1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		32		# 8, 16, 24 or 32
		Modes		"1280x1024"	# "1024x768" or "1280x1024"
	EndSubSection
EndSection

--
Best Regards,
   Keith



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Xref: news.gmane.org gmane.linux.ports.parisc:17541

Yesterday I sent back saying my box, booted faster with your bus-walk
patch, but still hung..  I finally had a chance to take a little closer
look at it today.

The kernel dead hangs, {magic keys don't work}, and it does it where it
should be starting to mount/read the root volume.

I've removed from the kernel config:
RAM disk support
Initial RAM disk (initrd) support

HP System Device Controller i8042 Support
HP SDC Real Time Clock
HIL MLC Support
HIL Keyboard (full) support (NEW)
HIL Mouse & Pointer support (NEW)

and now it boots fine...
I will attempt to figure out which option hosed it...




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From: "Mehta, Miten" <mmehta@elgin.edu>
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Subject: RE: [parisc-linux] RE: X windows setup on C110 with woody and ker
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------_=_NextPart_000_01C2C800.2889A620
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Hello,

I still get errors for depth 24 though some what different.

take a look at xfree log attached.

thanks.



-----Original Message-----
From: Keith Hopkins [mailto:kxh3@wwarc1.atl.hp.com]
Sent: Wednesday, January 29, 2003 7:15 PM
To: Mehta, Miten
Cc: 'Helge Deller'; parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] RE: X windows setup on C110 with woody and
kernel-2.4.20pa22


Mehta, Miten wrote:
> Hey,
> 
> I tried it again and find here xfree log.  I was advised to take X window
> setup to debian-hppa so I did not post to parisc list.  Also find
> XF86Config-4.  
> 
> Actually what I just did I had done that in very first attempt ;-).
Thibaut
> VARENE pointed out some thing which I have not tried to use /dev/psaux in
> place of /dev/input/mice.  Just shall wait for your reponse.
> 
> thanks.
> 
> Miten.
> 
> 
> 
> -----Original Message-----
> From: Helge Deller [mailto:deller@gmx.de]
> Sent: Wednesday, January 29, 2003 1:57 PM
> To: Mehta, Miten
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: X windows setup on C110 with woody and kernel-2.4.20pa22
> 
> 
> Hi Miten,
> 
> Please don't remove parisc-linux@lists.parisc-linux.org from the receivers
> in the future.
> 
>>From your dmesg this is the important part:
> 
> STI GSC/PCI graphics driver version 0.9
> STI byte mode ROM at f4000000, hpa at f4000000
> STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
> STI device: HPA4071B
> Console: switching to colour frame buffer device 160x64
> fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio:
0xf4100000
> 
> So, if you change the in SubSection "Display" the Depth to 32 it should
> work:
> Example:
>     SubSection "Display"
>                 Depth           32               # 8, 16, 24 or 32
(acording
> to "fbset -i")
>                 Modes           "1280x1024"     # "1024x768" or
"1280x1024"
>         EndSubSection
> 
> You don't seem to have HIL, but IIRC the ps/2 driver uses the same
> /dev/input/mice 
> interface.
> 
> Regards,
> Helge
> 
>

Hi Miten,

   Your log now complains there is no Depth 24 section.  So, I suggest to
ADD that section just above/below the Depth 32 section.

Example:

Section "Screen"
	Identifier	"Default Screen"
	Device		"Generic Video Card"
	Monitor		"Generic Monitor"
	SubSection "Display"
		Depth		24		# 8, 16, 24 or 32
		Modes		"1280x1024"	# "1024x768" or "1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		32		# 8, 16, 24 or 32
		Modes		"1280x1024"	# "1024x768" or "1280x1024"
	EndSubSection
EndSection

--
Best Regards,
   Keith


------_=_NextPart_000_01C2C800.2889A620
Content-Type: application/octet-stream;
	name="XFree86.0.log"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="XFree86.0.log"


This is a pre-release version of XFree86, and is not supported in any
way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
please check the latest version in the XFree86 CVS repository
(http://www.XFree86.Org/cvs)

XFree86 Version 4.1.0.1 / X Window System
(protocol Version 11, revision 0, vendor release 6510)
Release Date: 21 December 2001
	If the server is older than 6-12 months, or if your card is
	newer than the above date, look for a newer version before
	reporting problems.  (See http://www.XFree86.Org/FAQ)
Build Operating System: Linux 2.4.16-64 parisc64 [ELF]=20
(=3D=3D) Log file: "/var/log/XFree86.0.log", Time: Thu Jan 30 01:41:26 =
2003
(=3D=3D) Using config file: "/etc/X11/XF86Config-4"
Markers: (--) probed, (**) from config file, (=3D=3D) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(=3D=3D) ServerLayout "Default Layout"
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "Generic Monitor"
(**) |   |-->Device "Generic Video Card"
(**) |-->Input Device "Keyboard"
(=3D=3D) Keyboard: CustomKeycode disabled
(**) |-->Input Device "Mouse"
(WW) The directory "/usr/lib/X11/fonts/cyrillic" does not exist.
	Entry deleted from font path.
(**) FontPath set to =
"unix/:7100,/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts/100dpi/:unscaled,=
/usr/lib/X11/fonts/75dpi/:unscaled,/usr/lib/X11/fonts/Type1,/usr/lib/X11=
/fonts/Speedo,/usr/lib/X11/fonts/100dpi,/usr/lib/X11/fonts/75dpi"
(=3D=3D) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(--) using VT number 7

(WW) Cannot open APM
(EE) No OS PCI support available
(II) Addressable bus resource ranges are
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
	[1] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) OS-reported resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) OS-reported resource ranges after removing overlaps with PCI:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) All system resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
	mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
(II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, =
pm2v,
	pm2, pm, 300sx, 500tx, mx, delta
	S3VIdentify
(II) S3VIRGE: driver (version 1.6.13) for S3 ViRGE chipsets: virge, =
86C325,
	virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
	86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
	trio 3d/2x, 86C362, 86C368
(II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
	SIS300, SIS630, SIS540
(II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
	Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
	Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
	TwisterK
(II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, =
cyber9388,
	cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
	tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
	providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
	cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
	cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, =
ct65525,
	ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
	ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
	3dfx Voodoo3, 3dfx Voodoo5
(II) FBDev: driver for framebuffer: fbdev, afb
(II) ATI: ATI driver (version 6.3.6) for chipsets: ati
(II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
	ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
	ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
	ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
	ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
	ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
	ATI Rage 128 Mobility ML (AGP)
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
	ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
	ATI Radeon VE (AGP)
(II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : =
imstt128,
	imstt3d
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) v4l driver for Video4Linux
	S3VProbe begin
(II) FBDev(0): using default device
(II) Running in FRAMEBUFFER Mode
(=3D=3D) FBDev(0): Depth 24, (=3D=3D) framebuffer bpp 24
(=3D=3D) FBDev(0): RGB weight 888
(=3D=3D) FBDev(0): Default visual is TrueColor
(=3D=3D) FBDev(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDev(0): Hardware:  (vidmem: 16384k)
(II) FBDev(0): Checking Modes against framebuffer device...
(II) FBDev(0): 	mode "1280x1024" ok
(II) FBDev(0): Checking Modes against monitor...
(--) FBDev(0): Virtual size is 1280x1024 (pitch 1280)
(**) FBDev(0): Default mode "1280x1024": 108.0 MHz (scaled from 0.0 =
MHz), 64.0 kHz, 60.0 Hz
(II) FBDev(0): Modeline "1280x1024"  108.00  1280 1328 1440 1688  1024 =
1025 1028 1066 +hsync +vsync
(++) FBDev(0): DPI set to (100, 100)
(**) FBDev(0): Using "Shadow Framebuffer"
(--) Depth 24 pixmap format is 24 bpp

Fatal server error:
AddScreen/ScreenInit failed for driver 0


When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to submit@bugs.debian.org.


------_=_NextPart_000_01C2C800.2889A620--


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On Wed, Jan 29, 2003 at 01:13:20PM -0800, Sir Ace wrote:
> 
> I quickly browsed /patches, but there doesn't seem to be anything that
> tells about them, {mor ethan thier names} or if they have already been
> includeded in a tree....

the parisc-linux mail archive should say something about them.

> Is there a list of some sort or should I just use all the patches?

All patches not committed to CVS are experimental.
Don't take *any* of them unless you have evidence one of them
will solve a problem you are experiencing....and then if it
does, make noise so we know that particular patch needs to get
committed to CVS.

thanks,
grant


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> the parisc-linux mail archive should say something about them.

Ok

> All patches not committed to CVS are experimental.
> Don't take *any* of them unless you have evidence one of them
> will solve a problem you are experiencing....and then if it
> does, make noise so we know that particular patch needs to get
> committed to CVS.

Ok..





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Subject: Re: [parisc-linux] RE: X windows setup on C110 with woody and ker
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Mehta, Miten wrote:
> Hello,
> 
> I still get errors for depth 24 though some what different.
> 
> take a look at xfree log attached.
> 

Please post the output of  "dmesg | grep -e STI -e stifb".

--
Best Regards,
    Keith






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Subject: Re: [parisc-linux] Issues with seteuid()?
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> A. On a testing debian system (ie gcc-3.0 3.0.4-10 && libc6 2.2.5-14.3) and
> the very last kernel 2.4.20-pa23:
> 
> Compile with gcc -O 2 -Wall -D_REENTRANT foo.c -o foo
> 
> [ Create a user and a group named proxy with id 13 for both ]
> 
> First as it is ./foo would failled to fork() immediately with 'Segmentation
> fault'.

# uname -a
Linux legolas 2.4.20-pa23 #110 Mon Jan 27 23:44:18 PST 2003 parisc unknown unknown GNU/Linux

ii  gcc-3.0        3.0.4-7        The GNU C compiler.
ii  libc6          2.2.5-14.3     GNU C Library: Shared libraries and Timezone

# gcc-3.0 -O2 -Wall -D_REENTRANT seteuid.c -o seteuid
# ./seteuid
leave_suid: PID 18443 called
leave_suid: PID 18443 giving up root, becoming 'proxy'
Creating Swap Directories
[....]

no segfault... 

can you maybe run it with strace and send the last few lines of output?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Randolph,

>
>
>> A. On a testing debian system (ie gcc-3.0 3.0.4-10 && libc6 2.2.5-14.3)
>and
>> the very last kernel 2.4.20-pa23:
>> 
>> Compile with gcc -O 2 -Wall -D_REENTRANT foo.c -o foo
>> 
>> [ Create a user and a group named proxy with id 13 for both ]
>> 
>> First as it is ./foo would failled to fork() immediately with 'Segmentation
>> fault'.
>
># uname -a
>Linux legolas 2.4.20-pa23 #110 Mon Jan 27 23:44:18 PST 2003 parisc unknown
>unknown GNU/Linux
>
>ii  gcc-3.0        3.0.4-7        The GNU C compiler.
>ii  libc6          2.2.5-14.3     GNU C Library: Shared libraries and Timezone
>
># gcc-3.0 -O2 -Wall -D_REENTRANT seteuid.c -o seteuid
># ./seteuid
>leave_suid: PID 18443 called
>leave_suid: PID 18443 giving up root, becoming 'proxy'
>Creating Swap Directories
>[....]
>
>no segfault... 
>
>can you maybe run it with strace and send the last few lines of output?
>
Well so short that I can give you all:

ii  gcc-3.0        3.0.4-10       The GNU C compiler.
ii  gcc-3.0-base   3.0.4-10       The GNU Compiler Collection (base package).
ii  libc6          2.2.5-14.3     GNU C Library: Shared libraries and Timezone


# strace -f ./a.out
execve("./a.out", ["./a.out"], [/* 18 vars */]) = 0
newuname({sys="Linux", node="fw01.office.palinux", ...}) = 0
brk(0)                                  = 0x26000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x40017000
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 16726, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40018000
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\37"..., 1024)
= 1024
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 1392404, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40028000
mprotect(0x4015f000, 118548, PROT_NONE) = 0
mmap(0x4016e000, 45056, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
3, 0x136000) = 0x4016e000
mmap(0x40179000, 12052, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS,
-1, 0) = 0x40179000
close(3)                                = 0
munmap(0x40018000, 16726)               = 0
getpid()                                = 25520
write(2, "leave_suid: PID 25520 called\n", 29leave_suid: PID 25520 called
) = 29
geteuid()                               = 0
setgroups(1, [13])                      = 0
setgid(13)                              = 0
getpid()                                = 25520
write(2, "leave_suid: PID 25520 giving up "..., 55leave_suid: PID 25520 giving
up root, becoming 'proxy'
) = 55
setresuid(ruid 4294967295, euid 13, suid 4294967295) = 0
geteuid()                               = 13
write(2, "Creating Swap Directories\n", 26Creating Swap Directories
) = 26
fork()                                  = -1 EAGAIN (Resource temporarily
unavailable)
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++


Well as explained in a previous mail if I do a su - proxy and launch same
program no problem to fork() ??

Thanks for your attention,
    Joel


*********************************************
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[oops, forgot to send the last message to the list -- i had asked Joel
for his ulimit settings]

> Nothing that is not std (AFAIK & IIRC):
> 
> # ulimit -a
> core file size        (blocks, -c) 0
> data seg size         (kbytes, -d) unlimited
> file size             (blocks, -f) unlimited
> max locked memory     (kbytes, -l) unlimited
> max memory size       (kbytes, -m) 5000
> open files                    (-n) 1024
> pipe size          (512 bytes, -p) 8
> stack size            (kbytes, -s) 8192
> cpu time             (seconds, -t) unlimited
> max user processes            (-u) 20
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> virtual memory        (kbytes, -v) unlimited

That's the reason..... if you do 'ulimit -u unlimited' (or at least a
bigger number) you should be ok.

randolph


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Randolph,

...
>> cpu time             (seconds, -t) unlimited
>> max user processes            (-u) 20
>  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> virtual memory        (kbytes, -v) unlimited
>
>That's the reason..... if you do 'ulimit -u unlimited' (or at least a
>bigger number) you should be ok.
>
ulimit -u unlimited 

(just for fun I can download to 64 for this test case; is there any means
to determine a reasonnable value (unstable seems to set it to 999)?)

Thanks again for all,
    Joel

PS: Where is defined this default?

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From: Thibaut VARENE <varenet@esiee.fr>
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On Thu, 30 Jan 2003 08:57:09 +0100
"Lehner Hartwig" <hartwig.lehner@salzburg.gv.at> wrote:

> Hello
> 
> Thanks a lot for all the trouble. It is obvious, that I am new in the
> business and make mistakes. I did search the sites, I did find thr HOW
> TO but it only talks of workstations and not any server I know.
Hmm, I wonder where this is stated. Maybe the Intro has to be rewritten.
Indeed it deals with _any supported_ machine. If you look at the PALO
section you'll see an A500 console output. A500 is obviously not a
workstation ;)
http://pateam.esiee.fr/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/paloearlyboot.html
> 
> But in future I want to do it right, so I would ask you to tell me who
> or what is m-1 so that I can let others participate.
'm-l' is a short way to say "Mailing-List". Therefore, when you answer a
mail posted on the mailing list, do a "Reply All" (i guess that'd be
"Antwort Alles" in German).
> 
> One last remark, there is a lot information on Linux for PARISC, but
> to find what one is looking for is very time consuming and affords a
> lot of experience. For a newcomer a very tedious, frustrating job. So
> please forgive my mistakes on ettiquete.
Well, somehow it's a good point to be able to find a lot of information ;)
Anyway, a good beginning would definitly be the official PA/Linux
website (parisc-linux.org).

> Thanks
You're welcome.

Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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Subject: RE: [parisc-linux] quad tulip now not functional in 2.4.20
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Why did nobody point to the hardware database: http://hwdb.parisc-linux.org/

There are some users of a D210 reported there:
http://hwdb.parisc-linux.org/view.php3?type=machine&name=D210

They will know some ins and outs.

CBee


--
C. Beerse
mailto:c.beerse@torex-hiscom.nl
talkto:+31(71)5256660


> -----Original Message-----
> From: jsoe0708@tiscali.be [mailto:jsoe0708@tiscali.be]
> Sent: donderdag 19 december 2002 18:38
> To: grundler@dsl2.external.hp.com
> Cc: Ed Schaller; parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] quad tulip now not functional in 2.4.20
> 
> 
> Hi Grant,
> 
> >
> >On Tue, Dec 17, 2002 at 08:12:03AM +0100, jsoe0708@tiscali.be wrote:
> >> Just to avoid you loose time here is a diff:
> >...
> >> -	if (ee_data[27] == 0) {		/* No valid media table. */
> >> +	if (ee_data[27] == 0 || ee_data[ee_data[27]] == 0) {  
> /* No valid media
> >> table. */
> >
> >Like I suspected, backing out this change made add-on boards 
> work again.
> >I've reverted that change in 2.4.20-pa15 along with a traps.c change.
> >Please apply by hand and try the 4-port again.
> >
> Sorry, I was too tired yesterday evening and have not time today :-(.
> 
> But I see that Ed successfully tested. Great (I will also 
> test it, ... next
> year :))
> 
> Thanks for all and let me wish you and your families a Merry 
> Christmas and
> a Happy New Year,
>     Joel
> 
> 
> 
> **************************************************************
> ******************
> Controlez mieux votre consommation Internet...surfez Tiscali 
> Complete...http://tiscali.complete.be
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

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charset=3Diso-8859-1">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2654.45">
<TITLE>RE: [parisc-linux] quad tulip now not functional in =
2.4.20</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>Why did nobody point to the hardware database: <A =
HREF=3D"http://hwdb.parisc-linux.org/" =
TARGET=3D"_blank">http://hwdb.parisc-linux.org/</A></FONT>
</P>

<P><FONT SIZE=3D2>There are some users of a D210 reported there: <A =
HREF=3D"http://hwdb.parisc-linux.org/view.php3?type=3Dmachine&name=3DD21=
0" =
TARGET=3D"_blank">http://hwdb.parisc-linux.org/view.php3?type=3Dmachine&=
name=3DD210</A></FONT>
</P>

<P><FONT SIZE=3D2>They will know some ins and outs.</FONT>
</P>

<P><FONT SIZE=3D2>CBee</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>--</FONT>
<BR><FONT SIZE=3D2>C. Beerse</FONT>
<BR><FONT SIZE=3D2><A =
HREF=3D"mailto:c.beerse@torex-hiscom.nl">mailto:c.beerse@torex-hiscom.nl=
</A></FONT>
<BR><FONT SIZE=3D2>talkto:+31(71)5256660</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: jsoe0708@tiscali.be [<A =
HREF=3D"mailto:jsoe0708@tiscali.be">mailto:jsoe0708@tiscali.be</A>]</FON=
T>
<BR><FONT SIZE=3D2>&gt; Sent: donderdag 19 december 2002 18:38</FONT>
<BR><FONT SIZE=3D2>&gt; To: grundler@dsl2.external.hp.com</FONT>
<BR><FONT SIZE=3D2>&gt; Cc: Ed Schaller; =
parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>&gt; Subject: Re: [parisc-linux] quad tulip now not =
functional in 2.4.20</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Hi Grant,</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt;</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;On Tue, Dec 17, 2002 at 08:12:03AM +0100, =
jsoe0708@tiscali.be wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;&gt; Just to avoid you loose time here is a =
diff:</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;...</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;&gt; -&nbsp; if (ee_data[27] =3D=3D 0) { =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* No valid media table. =
*/</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;&gt; +&nbsp; if (ee_data[27] =3D=3D 0 || =
ee_data[ee_data[27]] =3D=3D 0) {&nbsp; </FONT>
<BR><FONT SIZE=3D2>&gt; /* No valid media</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;&gt; table. */</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;Like I suspected, backing out this change =
made add-on boards </FONT>
<BR><FONT SIZE=3D2>&gt; work again.</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;I've reverted that change in 2.4.20-pa15 =
along with a traps.c change.</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;Please apply by hand and try the 4-port =
again.</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;</FONT>
<BR><FONT SIZE=3D2>&gt; Sorry, I was too tired yesterday evening and =
have not time today :-(.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; But I see that Ed successfully tested. Great (I =
will also </FONT>
<BR><FONT SIZE=3D2>&gt; test it, ... next</FONT>
<BR><FONT SIZE=3D2>&gt; year :))</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Thanks for all and let me wish you and your =
families a Merry </FONT>
<BR><FONT SIZE=3D2>&gt; Christmas and</FONT>
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<BR><FONT SIZE=3D2>&gt; =
**************************************************************</FONT>
<BR><FONT SIZE=3D2>&gt; ******************</FONT>
<BR><FONT SIZE=3D2>&gt; Controlez mieux votre consommation =
Internet...surfez Tiscali </FONT>
<BR><FONT SIZE=3D2>&gt; Complete...<A =
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PA,
>...
>>> cpu time             (seconds, -t) unlimited
>>> max user processes            (-u) 20
>>  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>> virtual memory        (kbytes, -v) unlimited
>>
>>That's the reason..... if you do 'ulimit -u unlimited' (or at least a
>>bigger number) you should be ok.
>>
>ulimit -u unlimited 
>
>(just for fun I can download to 64 for this test case; is there any means
>to determine a reasonnable value (unstable seems to set it to 999)?)
>
>
>PS: Where is defined this default?
>
It seems to be my bad ;_().
It appears in my own apt-get update Log that I use the default (ie N) when
the update procedure of 'libpam-modules' dpkg proposed me to change '/etc/security/limits.conf.

Sorry and thanks again for your support,

Joel


*********************************************
Vous surfez toujours avec une ligne classique ?
Faites des economies avec Tiscali Complete...
Plus d'info sur ... http://complete.tiscali.be




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On Thursday 30 January 2003 04:59 am, Beerse, Corn wrote:
> Why did nobody point to the hardware database:
> http://hwdb.parisc-linux.org/
>
> There are some users of a D210 reported there:
> http://hwdb.parisc-linux.org/view.php3?type=machine&name=D210
>
> They will know some ins and outs.
>
> CBee
Good point...

Perhaps because it is refered to as a "hardware database" ?
Using something called a "hardware database" to find persons
experienced in a certain machine can indeed be very helpful;
but not an obvious use going by its name.

"tweaking" a web page or two to make this usage clear
to the newcomer might help.

Who would be a good contact for such a change?

Mike


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> Who would be a good contact for such a change?

there's an email address on many of the hwdb pages
(hwdb@parisc-linux.org). That'll be a good place to start. I believe it
currently points to Thibaut :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] Hardware Database & User Contacts
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Group.

I was just browsing the pages, trying to get an idea if I had
just volunteered for a 2-line change or a 2-million line change...

Question 1:
The user registration form says "... You will not be contacted..."

I always read that as: "We will not spam you with advertisements."
But others may have read that as: "You will not be contacted."

Possible answers :
1.a - Give up on the idea of recommending this use of the
hardware database information.

1.b - Add a field meaning: "Willing to give advice on this."
Then initialize that field for all current members to "No".

1.c - Hide the email address field from public view
(developer only view, like it says now) unless the 
"Willing to give advice on this." thing is marked.

Question 2:
Is there a way to update this registration information?

2.a - At this time, my e-mail address is wrong, I would like
to update it.

2.b - If we set all existing users to 1.b - "No"; is there a 
way for them to update it to "Yes"?

Mike

On Thursday 30 January 2003 08:45 am, Michael S.Zick wrote:
> On Thursday 30 January 2003 04:59 am, Beerse, Corn wrote:
> > Why did nobody point to the hardware database:
> > http://hwdb.parisc-linux.org/
> >
> > There are some users of a D210 reported there:
> > http://hwdb.parisc-linux.org/view.php3?type=machine&name=D210
> >
> > They will know some ins and outs.
> >
> > CBee
>
> Good point...
>
> Perhaps because it is refered to as a "hardware database" ?
> Using something called a "hardware database" to find persons
> experienced in a certain machine can indeed be very helpful;
> but not an obvious use going by its name.
>
> "tweaking" a web page or two to make this usage clear
> to the newcomer might help.
>
> Who would be a good contact for such a change?
>
> Mike
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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Subject: RE: [parisc-linux] RE: X windows setup on C110 with woody and ker
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Hello Keith,

Find attached output of "dmesg | grep -e STI -e stifb".

There seems to be some progress with addition of depth 24 section following
32 one but thats just what I felt ;-).


-----Original Message-----
From: Keith Hopkins [mailto:kxh3@wwarc1.atl.hp.com]
Sent: Wednesday, January 29, 2003 9:07 PM
To: Mehta, Miten
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] RE: X windows setup on C110 with woody and
ker nel-2.4.20pa22


Mehta, Miten wrote:
> Hello,
> 
> I still get errors for depth 24 though some what different.
> 
> take a look at xfree log attached.
> 

Please post the output of  "dmesg | grep -e STI -e stifb".

--
Best Regards,
    Keith





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Content-Type: text/plain;
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	filename="dmesg_sti.txt"

STI GSC/PCI graphics driver version 0.9
STI byte mode ROM at f4000000, hpa at f4000000
STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071B
fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio: 0xf4100000

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On Mon, Jan 27, 2003 at 11:46:07PM -0800, Randolph Chung wrote:
> In reference to a message from Randolph Chung, dated Jan 27:
> > > well.... Grant and I did some more debugging on this.... here's what
> > > we've tried so far:
> > 
> > ok, here's what's happening apparently.... (with many thanks to Grant 
> > for a sharp eye :)
> 
> there's a temporary workaround in cvs now (2.4.20-pa23). For people
> who have seen the crash with gcc-3.2, please give it a try and let us 
> know how it goes.
[snip]

Since you seem to have found the problem, this is probably not relevant,
but I found this on Kernel Traffic:

	Alan remarked, "2.5.x crashes erratically and randomly under
	high tty/pty load.  At the moment I'm assuming this is the tty
	code. That means we can't decide not to fix it since its already
	fatally broken." Close by, Linus Torvalds said he didn't think
	the TTY code was in such bad shape. He guessed there were just a
	few locking problems that had crept in, coupled with the
	preemption patches' tendency to expose existing locking bugs.

It sounds vaguely related, except maybe for the "high load" bit.

-- 
Michael Wood <mwood@its.uct.ac.za>


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On jeudi, jan 30, 2003, at 16:02 Europe/Paris, Randolph Chung wrote:

>> Who would be a good contact for such a change?
>
> there's an email address on many of the hwdb pages
> (hwdb@parisc-linux.org). That'll be a good place to start. I believe it
> currently points to Thibaut :)
yes.

quoting Michael S.Zick:
> "tweaking" a web page or two to make this usage clear
> to the newcomer might help.
Forget about it. You don't even know what it's all about and don't 
wanna know.
If it ain't broke, don't fix it.
let's eventually add a FAQ/News entry on the main website (which can be 
done by anyone
with CVS access), but i'm not gonna change anything to that hwdb before 
long.

i'm currently under heavy exam pressure and have really many other thing
to do. Even on parisc stuff. HWDB is currently ranked at level 
"abyssal" in my TODO list
priority order.

That being stated to avoid any post to hwdb@parisc-linux.org. :)

HTH,

Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Thanks,
Will do.

I posted a separate message to the M-L - just to see
how many:
 "I didn't mean I have the time to answer questions."
sort of responses this idea would raise among the 
M-L members.

Mike

On Thursday 30 January 2003 09:02 am, Randolph Chung wrote:
> > Who would be a good contact for such a change?
>
> there's an email address on many of the hwdb pages
> (hwdb@parisc-linux.org). That'll be a good place to start. I believe it
> currently points to Thibaut :)
>
> randolph


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On Thursday 30 January 2003 09:38 am, Thibaut VARENE wrote:
> On jeudi, jan 30, 2003, at 16:02 Europe/Paris, Randolph Chung wrote:
> >> Who would be a good contact for such a change?
> >
> > there's an email address on many of the hwdb pages
> > (hwdb@parisc-linux.org). That'll be a good place to start. I believe it
> > currently points to Thibaut :)
>
> yes.
>
> quoting Michael S.Zick:
> > "tweaking" a web page or two to make this usage clear
> > to the newcomer might help.
>
> Forget about it. You don't even know what it's all about and don't
> wanna know.
Done


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> Since you seem to have found the problem, this is probably not relevant,
> but I found this on Kernel Traffic:
> 
> 	Alan remarked, "2.5.x crashes erratically and randomly under
> 	high tty/pty load.  At the moment I'm assuming this is the tty
> 	code. That means we can't decide not to fix it since its already
> 	fatally broken." Close by, Linus Torvalds said he didn't think
> 	the TTY code was in such bad shape. He guessed there were just a
> 	few locking problems that had crept in, coupled with the
> 	preemption patches' tendency to expose existing locking bugs.
> 
> It sounds vaguely related, except maybe for the "high load" bit.

i think this is a completely different problem. the one Grant and I
found is very parisc and compiler specific.

randolph


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Subject: RE: [parisc-linux] RE: X windows setup on C110 with woody and ker
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Hello,

I have got startx command working and giving me KDE.  Please find attached
necessary files.

In short I added DefaultFbBpp 32, mouse as /dev/psaux.

Thanks for help.

Miten.



-----Original Message-----
From: Keith Hopkins [mailto:kxh3@wwarc1.atl.hp.com]
Sent: Wednesday, January 29, 2003 7:15 PM
To: Mehta, Miten
Cc: 'Helge Deller'; parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] RE: X windows setup on C110 with woody and
kernel-2.4.20pa22


Mehta, Miten wrote:
> Hey,
> 
> I tried it again and find here xfree log.  I was advised to take X window
> setup to debian-hppa so I did not post to parisc list.  Also find
> XF86Config-4.  
> 
> Actually what I just did I had done that in very first attempt ;-).
Thibaut
> VARENE pointed out some thing which I have not tried to use /dev/psaux in
> place of /dev/input/mice.  Just shall wait for your reponse.
> 
> thanks.
> 
> Miten.
> 
> 
> 
> -----Original Message-----
> From: Helge Deller [mailto:deller@gmx.de]
> Sent: Wednesday, January 29, 2003 1:57 PM
> To: Mehta, Miten
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: X windows setup on C110 with woody and kernel-2.4.20pa22
> 
> 
> Hi Miten,
> 
> Please don't remove parisc-linux@lists.parisc-linux.org from the receivers
> in the future.
> 
>>From your dmesg this is the important part:
> 
> STI GSC/PCI graphics driver version 0.9
> STI byte mode ROM at f4000000, hpa at f4000000
> STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
> STI device: HPA4071B
> Console: switching to colour frame buffer device 160x64
> fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio:
0xf4100000
> 
> So, if you change the in SubSection "Display" the Depth to 32 it should
> work:
> Example:
>     SubSection "Display"
>                 Depth           32               # 8, 16, 24 or 32
(acording
> to "fbset -i")
>                 Modes           "1280x1024"     # "1024x768" or
"1280x1024"
>         EndSubSection
> 
> You don't seem to have HIL, but IIRC the ps/2 driver uses the same
> /dev/input/mice 
> interface.
> 
> Regards,
> Helge
> 
>

Hi Miten,

   Your log now complains there is no Depth 24 section.  So, I suggest to
ADD that section just above/below the Depth 32 section.

Example:

Section "Screen"
	Identifier	"Default Screen"
	Device		"Generic Video Card"
	Monitor		"Generic Monitor"
	SubSection "Display"
		Depth		24		# 8, 16, 24 or 32
		Modes		"1280x1024"	# "1024x768" or "1280x1024"
	EndSubSection
	SubSection "Display"
		Depth		32		# 8, 16, 24 or 32
		Modes		"1280x1024"	# "1024x768" or "1280x1024"
	EndSubSection
EndSection

--
Best Regards,
   Keith


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	Linux/PPC Development <linuxppc-dev@lists.linuxppc.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	Linux/m68k <linux-m68k@lists.linux-m68k.org>
To: Geert Uytterhoeven <geert@linux-m68k.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:17563

On Fri, Jan 10, 2003 at 09:05:55PM +0100, Geert Uytterhoeven wrote:
 
> Unfortunately I didn't receive any feedback from the pa-risc and ppc people
> after my previous posting last Sunday.
[snip]
> Pa-risc and ppc people (any other users?), please send me your enhancements (or
> just ack if none are necessary), so I can send genrtc to Marcelo.

Sorry I haven't spoken up before this, A simple cp of
include/asm-ppc/rtc.h (and then throwing the question
someplace) compiles a kernel correctly, and from what I recall of
getting it to work in 2.5, at that point it was all good anyhow.  So
this is fine for PPC32 as is.

-- 
Tom Rini (TR1265)
http://gate.crashing.org/~trini/


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From: Max <max@avtlg.ru>
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Subject: [parisc-linux] DTC & Debain.
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Xref: news.gmane.org gmane.linux.ports.parisc:17564

Hi ALL.

Support DTC 16 TN by Debian?
Where can I get DTC Manager for Debian?
Exits any DTC software for Linux?




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From: Sir Ace <chandler@nateng.com>
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Subject: [parisc-linux] I found the cause of my kernel hangs
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Xref: news.gmane.org gmane.linux.ports.parisc:17565

The offending thing was:
HIL MLC Support

I went through the options one by one, starting with just about everything
turned off, and adding one thing at a time, until I replicated my hang.
What info would you guys like, besides this?

The machine is a J200.



here is the whole .config:

#
# Automatically generated by make menuconfig: don't edit
#
CONFIG_PARISC=y
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y

#
# Processor type
#
# CONFIG_PA7100 is not set
CONFIG_PA7200=y
# CONFIG_PA7100LC is not set
# CONFIG_PA8X00 is not set
CONFIG_PA11=y

#
# General options
#
CONFIG_SMP=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_ISA=y
CONFIG_PCI=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_SUPERIO=y
CONFIG_PCI_NAMES=y

#
# General setup
#
CONFIG_HOTPLUG=y
CONFIG_NET=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_SOM=y
CONFIG_BINFMT_MISC=y
# CONFIG_PM is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_CISS_SCSI_TAPE is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y
# CONFIG_BLK_STATS is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID5 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=y
# CONFIG_NETFILTER is not set
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=y
CONFIG_NET_IPGRE=y
CONFIG_NET_IPGRE_BROADCAST=y
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
CONFIG_INET_ECN=y
CONFIG_SYN_COOKIES=y
CONFIG_IPV6=y
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set

#
# Appletalk devices
#
# CONFIG_DEV_APPLETALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set

#
# ATA/IDE/MFM/RLL support
#
# CONFIG_IDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_CHR_DEV_ST=y
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_SR_EXTRA_DEVS=2
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_NCR53C406A is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
CONFIG_53C700_USE_CONSISTENT=y
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_ASK_ZALON is not set
# CONFIG_ASK_NCR53C8XX is not set
# CONFIG_ASK_SYM53C8XX is not set
CONFIG_SCSI_ZALON=y
CONFIG_ASK_ZALON=y
CONFIG_SCSI_SYM53C8XX=y
CONFIG_ASK_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_PQS_PDS is not set
# CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_DEBUG is not set

#
# PCMCIA SCSI adapter support
#
# CONFIG_SCSI_PCMCIA is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
CONFIG_DUMMY=y
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_LASI_82596=y
# CONFIG_SUNLANCE is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
# CONFIG_TULIP_MMIO is not set
# CONFIG_DE4X5 is not set
# CONFIG_DGRS is not set
# CONFIG_DM9102 is not set
# CONFIG_EEPRO100 is not set
# CONFIG_E100 is not set
# CONFIG_LNE390 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_8139TOO_PIO is not set
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_OLD_RX_RESET is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_SUNDANCE_MMIO is not set
# CONFIG_TLAN is not set
# CONFIG_TC35815 is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_RHINE_MMIO is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_NET_POCKET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_TIGON3 is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# PCMCIA network device support
#
# CONFIG_NET_PCMCIA is not set

#
# Input core support
#
CONFIG_INPUT=y
CONFIG_INPUT_KEYBDEV=y
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_GSC_PS2=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_GSC=y
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256

#
# I2C support
#
CONFIG_I2C=y
CONFIG_I2C_ALGOBIT=y
# CONFIG_I2C_PHILIPSPAR is not set
# CONFIG_I2C_ELV is not set
# CONFIG_I2C_VELLEMAN is not set
# CONFIG_I2C_ALGOPCF is not set
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_PROC=y

#
# Mice
#
# CONFIG_BUSMOUSE is not set
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_PC110_PAD is not set
# CONFIG_MK712_MOUSE is not set

#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set
# CONFIG_INPUT_NS558 is not set
# CONFIG_INPUT_LIGHTNING is not set
# CONFIG_INPUT_PCIGAME is not set
# CONFIG_INPUT_CS461X is not set
# CONFIG_INPUT_EMU10K1 is not set
CONFIG_INPUT_SERIO=y
# CONFIG_INPUT_SERPORT is not set
# CONFIG_INPUT_ANALOG is not set
# CONFIG_INPUT_A3D is not set
# CONFIG_INPUT_ADI is not set
# CONFIG_INPUT_COBRA is not set
# CONFIG_INPUT_GF2K is not set
# CONFIG_INPUT_GRIP is not set
# CONFIG_INPUT_INTERACT is not set
# CONFIG_INPUT_TMDC is not set
# CONFIG_INPUT_SIDEWINDER is not set
# CONFIG_INPUT_IFORCE_USB is not set
# CONFIG_INPUT_IFORCE_232 is not set
# CONFIG_INPUT_WARRIOR is not set
# CONFIG_INPUT_MAGELLAN is not set
# CONFIG_INPUT_SPACEORB is not set
# CONFIG_INPUT_SPACEBALL is not set
# CONFIG_INPUT_STINGER is not set
# CONFIG_INPUT_DB9 is not set
# CONFIG_INPUT_GAMECON is not set
# CONFIG_INPUT_TURBOGRAFX is not set
# CONFIG_QIC02_TAPE is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GENRTC=y
# CONFIG_AMD_PM768 is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# PCMCIA character devices
#
# CONFIG_PCMCIA_SERIAL_CS is not set
# CONFIG_SYNCLINK_CS is not set

#
# HIL support
#
CONFIG_HIL=y
# CONFIG_HIL_KBD_BASIC is not set
CONFIG_HP_SDC=y
CONFIG_HP_SDC_RTC=y
CONFIG_HIL_MLC=y
CONFIG_HP_SDC_MLC=y
# CONFIG_HIL_KBD is not set
# CONFIG_HIL_PTR is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# File systems
#
CONFIG_QUOTA=y
CONFIG_AUTOFS_FS=y
CONFIG_AUTOFS4_FS=y
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
CONFIG_REISERFS_PROC_INFO=y
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BEFS_DEBUG is not set
# CONFIG_BFS_FS is not set
CONFIG_EXT3_FS=y
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_UMSDOS_FS=m
CONFIG_VFAT_FS=m
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
CONFIG_RAMFS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_JFS_FS=m
# CONFIG_JFS_DEBUG is not set
CONFIG_JFS_STATISTICS=y
CONFIG_MINIX_FS=y
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set

#
# Network File Systems
#
CONFIG_CODA_FS=y
CONFIG_INTERMEZZO_FS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_ROOT_NFS is not set
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_TCP=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_SMB_FS=y
# CONFIG_SMB_NLS_DEFAULT is not set
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
CONFIG_ZISOFS_FS=y

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_SMB_NLS=y
CONFIG_NLS=y

#
# Native Language Support
#
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set

#
# Console drivers
#

#
# Frame-buffer support
#
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
# CONFIG_FB_RIVA is not set
# CONFIG_FB_CLGEN is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CYBER2000 is not set
CONFIG_FB_STI=y
# CONFIG_FB_MATROX is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FBCON_ADVANCED is not set
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB32=y
CONFIG_FBCON_STI=y
# CONFIG_FBCON_FONTWIDTH8_ONLY is not set
# CONFIG_FBCON_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FBCON=y
CONFIG_FBCON_FONT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_FONT_6x11=y
CONFIG_FONT_SUN12x22=y

#
# Sound
#
# CONFIG_SOUND is not set

#
# USB support
#
# CONFIG_USB is not set

#
# Kernel hacking
#
CONFIG_MAGIC_SYSRQ=y
# CONFIG_DEBUG_SPINLOCK is not set

#
# Library routines
#
CONFIG_ZLIB_INFLATE=y
# CONFIG_ZLIB_DEFLATE is not set




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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] I found the cause of my kernel hangs
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In reference to a message from Sir Ace, dated Jan 30:
> 
> The offending thing was:
> HIL MLC Support
> 
> I went through the options one by one, starting with just about everything
> turned off, and adding one thing at a time, until I replicated my hang.
> What info would you guys like, besides this?
> 
> The machine is a J200.

http://www.parisc-linux.org/faq/kernelbug-howto.html

randolph


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From: grundler@dsl2.external.hp.com (Grant Grundler)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] quad tulip now not functional in 2.4.20
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On Thu, Jan 30, 2003 at 08:45:46AM -0600, Michael S. Zick wrote:
> "tweaking" a web page or two to make this usage clear
> to the newcomer might help.

The goal of the HWDB was to survey what HW each model machine has
so we could write proper support in the kernel.
AFAIK, The people submitting entries didn't sign up to do newbie support.

Keep posting questions to the parisc-linux mailing list and let people
who *want* to answer them do so.

If someone is looking for platform specific install notes, I think
ESIEE has such a web page already. Following links to ESIEE
from www.parisc-linux.org.

> Who would be a good contact for such a change?

In general, Thibaut or myself.
Anyone with CVS *write* permission can change the parisc-linux
web page but most don't touch it.

grant


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From: grundler@dsl2.external.hp.com (Grant Grundler)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Hardware Database & User Contacts
Date: Thu, 30 Jan 2003 20:46:13 -0700
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On Thu, Jan 30, 2003 at 09:21:49AM -0600, Michael S. Zick wrote:
> Group.
> 
> I was just browsing the pages, trying to get an idea if I had
> just volunteered for a 2-line change or a 2-million line change...
> 
> Question 1:
> The user registration form says "... You will not be contacted..."
> 
> I always read that as: "We will not spam you with advertisements."
> But others may have read that as: "You will not be contacted."
> 
> Possible answers :
> 1.a - Give up on the idea of recommending this use of the
> hardware database information.
> 
> 1.b - Add a field meaning: "Willing to give advice on this."
> Then initialize that field for all current members to "No".

yes

> 1.c - Hide the email address field from public view
> (developer only view, like it says now) unless the 
> "Willing to give advice on this." thing is marked.

If you are willing to hack php...that's an option too

> Question 2:
> Is there a way to update this registration information?

not at the moment.

> 2.a - At this time, my e-mail address is wrong, I would like
> to update it.

it's a manual process and I'm not doing it.

> 2.b - If we set all existing users to 1.b - "No"; is there a 
> way for them to update it to "Yes"?

not until someone writes the code to do it.

grant


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: [parisc-linux] PATCH hppa ordered load absolute ops
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in trying to close a potential memory ordering hole for pa2.0 machines,
I've run into the following problem with binutils.

hppa linux kernel uses ldwa to access MMIO space instead of
using virtually mapped addresses. Normally, ordering is enforced
automatically to all IO space accesses according to the PA 2.0 architecture.
However, some platforms (not supported yet) have IO devices responding
to physical addresses *outside* the architected IO spaces and that's
the hole I was trying to close.

hppa64-linux-gcc -D__KERNEL__ -I/home/src/2.4.20/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer -mpa-risc-2-0 -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000   -nostdinc -I /opt/palinux/lib/gcc-lib/hppa64-linux/3.0.4/include -DKBUILD_BASENAME=eeprom  -c -o eeprom.o eeprom.c
{standard input}: Assembler messages:
{standard input}:1039: Error: Invalid operands 
{standard input}:1054: Error: Invalid operands 
...

the -S output from eeprom.s looks like:
...
   1034 #NO_APP
   1035         extrd,u %r19,63,32,%r19
   1036 #APP
   1037                 stwa,o  %r19,0(%r26)
   1038 
   1039                 ldwa,o  0(%r26),%r21
   1040 
   1041 #NO_APP
   1042         or %r20,%r22,%r20

As one can see, "stwa,o" was ok but "ldwa,o" was not.
I've checked the pa2.0 arch and one of the restrictions is
the "im5" value must be zero (which it obviously is).

Appended is my very first attempt at adding a new opcode.
i think I have the match/mask fields right.
I'm still a bit sketchy on co/cc/@ specs.

thanks,
grant

--- ./binutils-2.13.90.0.16/include/opcode/hppa.h-orig  2003-01-30 21:06:56.000000000 -0800
+++ ./binutils-2.13.90.0.16/include/opcode/hppa.h       2003-01-30 22:58:54.000000000 -0800
@@ -405,6 +405,7 @@ static const struct pa_opcode pa_opcodes
 { "ldbx",       0x0c000000, 0xfc001fc0, "cXx(b),t", pa10, 0},
 { "ldwa",       0x0c000180, 0xfc00d3c0, "cxccx(b),t", pa10, FLAG_STRICT},
 { "ldwa",	0x0c001180, 0xfc00d3c0, "cmcc5(b),t", pa10, FLAG_STRICT},
+{ "ldwa",	0x0c0031a0, 0xfc1ff3d0, "cocc@(b),t", pa20, FLAG_STRICT},
 { "ldcw",       0x0c0001c0, 0xfc0013c0, "cxcdx(s,b),t", pa10, FLAG_STRICT},
 { "ldcw",       0x0c0001c0, 0xfc0013c0, "cxcdx(b),t", pa10, FLAG_STRICT},
 { "ldcw",	0x0c0011c0, 0xfc0013c0, "cmcd5(s,b),t", pa10, FLAG_STRICT},
@@ -415,6 +416,7 @@ static const struct pa_opcode pa_opcodes
 { "stby",	0x0c001300, 0xfc0013c0, "cscCx,V(b)", pa10, FLAG_STRICT},
 { "ldda",       0x0c000100, 0xfc00d3c0, "cxccx(b),t", pa20, FLAG_STRICT},
 { "ldda",	0x0c001100, 0xfc00d3c0, "cmcc5(b),t", pa20, FLAG_STRICT},
+{ "ldda",	0x0c003100, 0xfc1ff3d0, "cocc@(b),t", pa20, FLAG_STRICT},
 { "ldcd",       0x0c000140, 0xfc0013c0, "cxcdx(s,b),t", pa20, FLAG_STRICT},
 { "ldcd",       0x0c000140, 0xfc0013c0, "cxcdx(b),t", pa20, FLAG_STRICT},
 { "ldcd",	0x0c001140, 0xfc0013c0, "cmcd5(s,b),t", pa20, FLAG_STRICT},


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Subject: hwdb (was bad reply on RE: [parisc-linux] quad tulip now not func
	tional in 2.4.20)
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> -----Original Message-----
> From: grundler@dsl2.external.hp.com
> [mailto:grundler@dsl2.external.hp.com]
> Sent: donderdag 30 januari 2003 20:24
> To: Michael S. Zick
> Cc: Beerse, Corn?; 'jsoe0708@tiscali.be'; Ed Schaller;
> parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] quad tulip now not functional in 2.4.20
> 
> 
> On Thu, Jan 30, 2003 at 08:45:46AM -0600, Michael S. Zick wrote:
> > "tweaking" a web page or two to make this usage clear
> > to the newcomer might help.
> 
> The goal of the HWDB was to survey what HW each model machine has
> so we could write proper support in the kernel.

It would be nice if there is a statement with the parts if they are
supported by the linux implementation. Say in the range 'supported', 'work
in progress' or 'not supported'. Then, other users can see at a glance if it
is usable for them.

> AFAIK, The people submitting entries didn't sign up to do 
> newbie support.

You are right, you might get to many questions like 'when will my hardware
be supported?' It might be a bad idea at all.

> 
> Keep posting questions to the parisc-linux mailing list and let people
> who *want* to answer them do so.

True.

> 
> If someone is looking for platform specific install notes, I think
> ESIEE has such a web page already. Following links to ESIEE
> from www.parisc-linux.org.

Better, start at http://www.parisc-linux.org/hardware/supported.html (from
the same page: is my hardware supported).


So after all, I think most info is at the page, it is the newbees that need
a reading/browsing cource before they start.

CBee

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Diso-8859-1">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2654.45">
<TITLE>hwdb (was bad reply on RE: [parisc-linux] quad tulip now not =
functional in 2.4.20)</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: grundler@dsl2.external.hp.com</FONT>
<BR><FONT SIZE=3D2>&gt; [<A =
HREF=3D"mailto:grundler@dsl2.external.hp.com">mailto:grundler@dsl2.exter=
nal.hp.com</A>]</FONT>
<BR><FONT SIZE=3D2>&gt; Sent: donderdag 30 januari 2003 20:24</FONT>
<BR><FONT SIZE=3D2>&gt; To: Michael S. Zick</FONT>
<BR><FONT SIZE=3D2>&gt; Cc: Beerse, Corn?; 'jsoe0708@tiscali.be'; Ed =
Schaller;</FONT>
<BR><FONT SIZE=3D2>&gt; parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>&gt; Subject: Re: [parisc-linux] quad tulip now not =
functional in 2.4.20</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; On Thu, Jan 30, 2003 at 08:45:46AM -0600, =
Michael S. Zick wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &quot;tweaking&quot; a web page or two to =
make this usage clear</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; to the newcomer might help.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; The goal of the HWDB was to survey what HW each =
model machine has</FONT>
<BR><FONT SIZE=3D2>&gt; so we could write proper support in the =
kernel.</FONT>
</P>

<P><FONT SIZE=3D2>It would be nice if there is a statement with the =
parts if they are supported by the linux implementation. Say in the =
range 'supported', 'work in progress' or 'not supported'. Then, other =
users can see at a glance if it is usable for them.</FONT></P>

<P><FONT SIZE=3D2>&gt; AFAIK, The people submitting entries didn't sign =
up to do </FONT>
<BR><FONT SIZE=3D2>&gt; newbie support.</FONT>
</P>

<P><FONT SIZE=3D2>You are right, you might get to many questions like =
'when will my hardware be supported?' It might be a bad idea at =
all.</FONT></P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Keep posting questions to the parisc-linux =
mailing list and let people</FONT>
<BR><FONT SIZE=3D2>&gt; who *want* to answer them do so.</FONT>
</P>

<P><FONT SIZE=3D2>True.</FONT>
</P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; If someone is looking for platform specific =
install notes, I think</FONT>
<BR><FONT SIZE=3D2>&gt; ESIEE has such a web page already. Following =
links to ESIEE</FONT>
<BR><FONT SIZE=3D2>&gt; from www.parisc-linux.org.</FONT>
</P>

<P><FONT SIZE=3D2>Better, start at <A =
HREF=3D"http://www.parisc-linux.org/hardware/supported.html" =
TARGET=3D"_blank">http://www.parisc-linux.org/hardware/supported.html</A=
> (from the same page: is my hardware supported).</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>So after all, I think most info is at the page, it is =
the newbees that need a reading/browsing cource before they =
start.</FONT></P>

<P><FONT SIZE=3D2>CBee</FONT>
</P>

</BODY>
</HTML>
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Grant
Thanks for your time...

But the person in charge is currently swapped...

So anything will have to be classed: "Maybe someday."

Mike

On Thursday 30 January 2003 09:46 pm, Grant Grundler wrote:
> On Thu, Jan 30, 2003 at 09:21:49AM -0600, Michael S. Zick wrote:
> > Group.
> >
> > I was just browsing the pages, trying to get an idea if I had
> > just volunteered for a 2-line change or a 2-million line change...
> >
> > Question 1:
> > The user registration form says "... You will not be contacted..."
> >
> > I always read that as: "We will not spam you with advertisements."
> > But others may have read that as: "You will not be contacted."
> >
> > Possible answers :
> > 1.a - Give up on the idea of recommending this use of the
> > hardware database information.
> >
> > 1.b - Add a field meaning: "Willing to give advice on this."
> > Then initialize that field for all current members to "No".
>
> yes
>
> > 1.c - Hide the email address field from public view
> > (developer only view, like it says now) unless the
> > "Willing to give advice on this." thing is marked.
>
> If you are willing to hack php...that's an option too
>
> > Question 2:
> > Is there a way to update this registration information?
>
> not at the moment.
>
> > 2.a - At this time, my e-mail address is wrong, I would like
> > to update it.
>
> it's a manual process and I'm not doing it.
>
> > 2.b - If we set all existing users to 1.b - "No"; is there a
> > way for them to update it to "Yes"?
>
> not until someone writes the code to do it.
>
> grant


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Subject: Re: [parisc-linux] PATCH hppa ordered load absolute ops
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Grant,

>  { "ldwa",       0x0c000180, 0xfc00d3c0, "cxccx(b),t", pa10, FLAG_STRICT},
>  { "ldwa",	0x0c001180, 0xfc00d3c0, "cmcc5(b),t", pa10, FLAG_STRICT},
> +{ "ldwa",	0x0c0031a0, 0xfc1ff3d0, "cocc@(b),t", pa20, FLAG_STRICT},

?               0x0c0011a0, 0xfc1ff3e0 

>  { "ldda",       0x0c000100, 0xfc00d3c0, "cxccx(b),t", pa20, FLAG_STRICT},
>  { "ldda",	0x0c001100, 0xfc00d3c0, "cmcc5(b),t", pa20, FLAG_STRICT},
> +{ "ldda",	0x0c003100, 0xfc1ff3d0, "cocc@(b),t", pa20, FLAG_STRICT},

?		0x0c001120, 0xfc1ff3e0

Shouldn't a=0, m=1 and im5=0?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Geert Uytterhoeven <geert@linux-m68k.org>
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Subject: [parisc-linux] Re: Generic RTC driver in 2.4.x
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On Thu, 30 Jan 2003, Tom Rini wrote:
> On Fri, Jan 10, 2003 at 09:05:55PM +0100, Geert Uytterhoeven wrote:
> > Unfortunately I didn't receive any feedback from the pa-risc and ppc people
> > after my previous posting last Sunday.
> [snip]
> > Pa-risc and ppc people (any other users?), please send me your enhancements (or
> > just ack if none are necessary), so I can send genrtc to Marcelo.
> 
> Sorry I haven't spoken up before this, A simple cp of
> include/asm-ppc/rtc.h (and then throwing the question
> someplace) compiles a kernel correctly, and from what I recall of
> getting it to work in 2.5, at that point it was all good anyhow.  So
> this is fine for PPC32 as is.

Note that in the mean time genrtc has changed, so I'd prefer you to at least
sent me your include/asm-ppc/rtc.h and a patch to add the question on PPC,
_after_ you have test-compiled the latest version. I'll send it to you in a
separate mail.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds





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On Fri, Jan 31, 2003 at 11:11:26AM -0500, John David Anglin wrote:
> > +{ "ldda",	0x0c003100, 0xfc1ff3d0, "cocc@(b),t", pa20, FLAG_STRICT},
> ?		0x0c001120, 0xfc1ff3e0
> 
> Shouldn't a=0, m=1 and im5=0?

yes - I thought I did that.
I laid out the bits on paper and then converted to hex.
I'll review tonight but trust you can get them right :^)

thanks,
grant


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From: Jochen Friedrich <jochen@scram.de>
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Subject: [parisc-linux] SCSI problem on 9000/720
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Hi,

today, i noticed the following message in my dmesg (boot info retained):

Linux version 2.4.20-pa18 (root@ebru) (gcc version 3.0.4) #7 Wed Jan 1
18:09:15
CET 2003
FP[0] enabled: Rev 3 Model 0
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00002000 00000481 00000000 00000000 052e3468 000011f4 00000004
0000000d 00
000000
vers  00000003
model 9000/720
[...]
53c700: consistent memory allocation failed
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0
scsi0 : LASI SCSI 53c700
  Vendor: TEAC      Model: FC-1     HF   07  Rev: RV A
  Type:   Direct-Access                      ANSI SCSI revision: 01 CCS
  Vendor: IBM       Model: DCAS-34330        Rev: S61A
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi removable disk sda at scsi0, channel 0, id 3, lun 0
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
sda : READ CAPACITY failed.
sda : status = 1, message = 00, host = 0, driver = 08
Current sd00:00: sns = 70  2
ASC= 4 ASCQ= 0
Raw sense data:0x70 0x00 0x02 0x00 0x00 0x00 0x00 0x08 0x00 0x00 0x00 0x00
0x04
0x00 0x00 0x00
sda : block size assumed to be 512 bytes, disk size 1GB.
Partition check:
 sda: I/O error: dev 08:00, sector 0
 I/O error: dev 08:00, sector 0
 unable to read partition table
scsi0: (6:0) Enabling Tag Command Queuing
SCSI device sdb: 8467200 512-byte hdwr sectors (4335 MB)
 sdb: sdb1 sdb2 sdb3 sdb4
[...] [sda is floppy, sdb is hard disk]
scsi0 (6:0) Target is suffering from tag starvation.
scsi0: (6:0) phase mismatch at 0228, phase IO BSY REQ DATA_IN
scsi0: Bus Reset detected, executing command 1034c800, slot 10361390, dsp
003602
28[0228]
 failing command because of reset, slot 10360520, cmnd 1034b600
 failing command because of reset, slot 10360654, cmnd 1034bc00
 failing command because of reset, slot 10360788, cmnd 1034a400
 failing command because of reset, slot 103608bc, cmnd 1034ca00
 failing command because of reset, slot 10360b24, cmnd 1034ce00
 failing command because of reset, slot 10360c58, cmnd 1034b000
 failing command because of reset, slot 10360d8c, cmnd 1034be00
 failing command because of reset, slot 10360ec0, cmnd 1034cc00
 failing command because of reset, slot 10360ff4, cmnd 1034ba00
 failing command because of reset, slot 10361128, cmnd 1034a000
 failing command because of reset, slot 1036125c, cmnd 1034b800
 failing command because of reset, slot 10361390, cmnd 1034c800
 failing command because of reset, slot 103614c4, cmnd 1034a200
 failing command because of reset, slot 103615f8, cmnd 1034b400
 failing command because of reset, slot 1036172c, cmnd 1034c600
scsi0 (6:0) broken device is looping in contingent allegiance: ignoring
scsi0 (6:0) New error handler wants to abort command
        0x2a 00 00 41 7b e7 00 00 08 00
scsi0 (6:0) New error handler wants to abort command
        0x28 00 00 6e 89 4f 00 00 08 00
scsi0 (6:0) New error handler wants to abort command
        0x2a 00 00 15 7e 1f 00 00 08 00
scsi0 (6:0) New error handler wants to abort command
        0x2a 00 00 3d 7c 4f 00 00 08 00
scsi0 (6:0) New error handler wants to abort command
        0x2a 00 00 0d 7c a7 00 00 08 00
scsi0 (6:0) New error handler wants to abort command
        0x2a 00 00 1d 7b cf 00 00 08 00
scsi0 (6:0) New error handler wants device reset
        0x2a 00 00 41 7b e7 00 00 08 00
scsi0 (6:0) New error handler wants BUS reset, cmd 1034a400
        0x2a 00 00 41 7b e7 00 00 08 00
scsi0: Bus Reset detected, executing command 00000000, slot 00000000, dsp
003604
a8[04a8]
 failing command because of reset, slot 10360ff4, cmnd 1034be00
 failing command because of reset, slot 10361128, cmnd 1034b000
 failing command because of reset, slot 1036125c, cmnd 1034ce00
 failing command because of reset, slot 10361390, cmnd 1034ca00
 failing command because of reset, slot 103614c4, cmnd 1034a400
 failing command because of reset, slot 103615f8, cmnd 1034bc00
SCSI disk error : host 0 channel 0 id 6 lun 0 return code = 8000002
Current sd08:13: sns = 70  0
Raw sense data:0x70 0x00 0x00 0x00 0x00 0x00 0x00 0x18 0x00 0x00 0x00 0x00
0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0xff 0xff 0xff 0xff
0x00
0x00 0x00 0x00
 I/O error: dev 08:13, sector 3145816

It's the phase mismatch stuff which is scaring me quite a bit ;-). It
could have been a defective sector which has been remapped (a disk scan
didn't show any problem) as a result of the a error, but then i would have
expected a simple IO error without that bus reset just before the problem.

Weird...

--jochen



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Subject: RE: [parisc-linux] PATCH hppa ordered load absolute ops
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I checked, and John's encodings are correct.

 -- Jim

> -----Original Message-----
> From: parisc-linux-admin@lists.parisc-linux.org 
> [mailto:parisc-linux-admin@lists.parisc-linux.org] On Behalf 
> Of Grant Grundler
> Sent: Friday, January 31, 2003 11:19 AM
> To: John David Anglin
> Cc: bug-binutils@gnu.org; parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] PATCH hppa ordered load absolute ops
> 
> 
> On Fri, Jan 31, 2003 at 11:11:26AM -0500, John David Anglin wrote:
> > > +{ "ldda",	0x0c003100, 0xfc1ff3d0, "cocc@(b),t", 
> pa20, FLAG_STRICT},
> > ?		0x0c001120, 0xfc1ff3e0
> > 
> > Shouldn't a=0, m=1 and im5=0?
> 
> yes - I thought I did that.
> I laid out the bits on paper and then converted to hex.
> I'll review tonight but trust you can get them right :^)
> 
> thanks,
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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Subject: Re: [parisc-linux] PATCH hppa ordered load absolute ops
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I installed the following after testing on hppa-unknown-linux-gnu.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

2003-01-31  Grant Grundler  <grundler@dsl2.external.hp.com>

        * hppa.h (ldwa, ldda): Add ordered opcodes.

Index: opcode/hppa.h
===================================================================
RCS file: /cvs/src/src/include/opcode/hppa.h,v
retrieving revision 1.49
diff -u -3 -p -r1.49 hppa.h
--- opcode/hppa.h	16 Dec 2002 09:57:03 -0000	1.49
+++ opcode/hppa.h	31 Jan 2003 21:13:31 -0000
@@ -407,6 +407,7 @@ static const struct pa_opcode pa_opcodes
 { "ldbx",       0x0c000000, 0xfc001fc0, "cXx(b),t", pa10, 0},
 { "ldwa",       0x0c000180, 0xfc00d3c0, "cxccx(b),t", pa10, FLAG_STRICT},
 { "ldwa",	0x0c001180, 0xfc00d3c0, "cmcc5(b),t", pa10, FLAG_STRICT},
+{ "ldwa",	0x0c0011a0, 0xfc1ff3e0, "cocc@(b),t", pa20, FLAG_STRICT},
 { "ldcw",       0x0c0001c0, 0xfc0013c0, "cxcdx(s,b),t", pa10, FLAG_STRICT},
 { "ldcw",       0x0c0001c0, 0xfc0013c0, "cxcdx(b),t", pa10, FLAG_STRICT},
 { "ldcw",	0x0c0011c0, 0xfc0013c0, "cmcd5(s,b),t", pa10, FLAG_STRICT},
@@ -417,6 +418,7 @@ static const struct pa_opcode pa_opcodes
 { "stby",	0x0c001300, 0xfc0013c0, "cscCx,V(b)", pa10, FLAG_STRICT},
 { "ldda",       0x0c000100, 0xfc00d3c0, "cxccx(b),t", pa20, FLAG_STRICT},
 { "ldda",	0x0c001100, 0xfc00d3c0, "cmcc5(b),t", pa20, FLAG_STRICT},
+{ "ldda",	0x0c001120, 0xfc1ff3e0, "cocc@(b),t", pa20, FLAG_STRICT},
 { "ldcd",       0x0c000140, 0xfc0013c0, "cxcdx(s,b),t", pa20, FLAG_STRICT},
 { "ldcd",       0x0c000140, 0xfc0013c0, "cxcdx(b),t", pa20, FLAG_STRICT},
 { "ldcd",	0x0c001140, 0xfc0013c0, "cmcd5(s,b),t", pa20, FLAG_STRICT},


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Subject: [parisc-linux] Tried to Install Debian 3r1 on C110, C180 and 2 712/60, no luck.
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Hi !

I wonder if someone could give me a help in the right direction.
I have a C110, a C180 and 2 712/60.
C110 would boot fine until you get to the first menu, then the keyboard
would be out.
I have tried the previous tricks about disconnect/reconnect the keyboard,
but to no use.
The Visualize-EG in C180 seems not be working, seen threads about that,
so installed the Visualize-24 card from the C110 on the C180 and get the
same result.
Is this problem only related to the install or if I install using serial
console would it be a head-less machine = no use ?

I also read that their are no trouble with installing on 712/60.
I got 2, one with the second LAN/Serial Card (So I can use it as a FW).
Bot are starting but are hanging after the message:

The Installation Program is determining the current state
of your system and the next installation step that should
 be performed.

It hangs there forever on both boxes.

Anyone succeded with a install of Debian 3 on the above HW that could give
me a hand,
I am giving PA Risc a chance until I need to put the Sparc and the Intel
back into the plans.

/ Adam




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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: Re: [parisc-linux] Tried to Install Debian 3r1 on C110, C180 and 2 712/60, no luck.
Date: Sat, 1 Feb 2003 10:30:05 +0100
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On Fri, 31 Jan 2003 20:27:21 -0800
"Adam Skaffloth" <adam.sk@groovy.ffloth.com> wrote:


> The Visualize-EG in C180 seems not be working, seen threads about that,
> so installed the Visualize-24 card from the C110 on the C180 and get the
> same result.
IIRC, Visualize-EG should be working with STIfb driver.

> I also read that their are no trouble with installing on 712/60.
> I got 2, one with the second LAN/Serial Card (So I can use it as a FW).
We have that conf as well, and installed it without any problem.
> Bot are starting but are hanging after the message:
> 
> The Installation Program is determining the current state
> of your system and the next installation step that should
>  be performed.
> 
> It hangs there forever on both boxes.
That's definitely not normal.
How much RAM does these boxes have ?
We noticed that bellow 32MB of RAM, the installer may 'Defunct' during the install process. In that case you would have to install the HD into another box, prepare it and install the software on it, and plug it back into the 712, see the PA-RISC/Linux Boot HOWTO for details (http://pateam.esiee.fr/doc.html)
 
HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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From: Christian Suder <csuder@cisco.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Tried to Install Debian 3r1 on C110, C180 and
 2 712/60, no luck.
Date: Sat, 01 Feb 2003 01:35:42 -0800
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Hi Adam,

no kidding, I am/have been running it on a C110, C180 and 712.... ;-) 
Although the 712 is a /80 not a /60, and that was before the official 
woody release. But the C110 and C180 were both installed from the same 
release CD. No problems with either one, but the C180 does have a 
visualize in it, the build in EG is not supported.

Regarding the keyboard disconnect/reconnect - that would only be needed 
for HIL keyboards, AFAIK. I used whatever PS/2 keyboard and mouse I had 
sitting around and that worked.

	Christian



Adam Skaffloth wrote:
> Hi !
> 
> I wonder if someone could give me a help in the right direction.
> I have a C110, a C180 and 2 712/60.
> C110 would boot fine until you get to the first menu, then the keyboard
> would be out.
> I have tried the previous tricks about disconnect/reconnect the keyboard,
> but to no use.
> The Visualize-EG in C180 seems not be working, seen threads about that,
> so installed the Visualize-24 card from the C110 on the C180 and get the
> same result.
> Is this problem only related to the install or if I install using serial
> console would it be a head-less machine = no use ?
> 
> I also read that their are no trouble with installing on 712/60.
> I got 2, one with the second LAN/Serial Card (So I can use it as a FW).
> Bot are starting but are hanging after the message:
> 
> The Installation Program is determining the current state
> of your system and the next installation step that should
>  be performed.
> 
> It hangs there forever on both boxes.
> 
> Anyone succeded with a install of Debian 3 on the above HW that could give
> me a hand,
> I am giving PA Risc a chance until I need to put the Sparc and the Intel
> back into the plans.
> 
> / Adam
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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From: Christian Suder <csuder@cisco.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Correction Re: [parisc-linux] Tried to Install Debian 3r1 on C110, C180 and 2 712/60, no luck.
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To: Christian Suder <csuder@cisco.com>
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Correction : the EG does show up as a fb device, and the correct spelling
would have been "built" in this case... ;-) 

	C. 


On Sat, 01 Feb 2003 01:35:42 -0800
Christian Suder <csuder@cisco.com> wrote:

> 
> Hi Adam,
> 
> no kidding, I am/have been running it on a C110, C180 and 712.... ;-) 
> Although the 712 is a /80 not a /60, and that was before the official 
> woody release. But the C110 and C180 were both installed from the same 
> release CD. No problems with either one, but the C180 does have a 
> visualize in it, the build in EG is not supported.
> 
> Regarding the keyboard disconnect/reconnect - that would only be needed 
> for HIL keyboards, AFAIK. I used whatever PS/2 keyboard and mouse I had 
> sitting around and that worked.
> 
> 	Christian
> 
> 
> 
> Adam Skaffloth wrote:
> > Hi !
> > 
> > I wonder if someone could give me a help in the right direction.
> > I have a C110, a C180 and 2 712/60.
> > C110 would boot fine until you get to the first menu, then the
> > keyboard would be out.
> > I have tried the previous tricks about disconnect/reconnect the
> > keyboard, but to no use.
> > The Visualize-EG in C180 seems not be working, seen threads about
> > that, so installed the Visualize-24 card from the C110 on the C180 and
> > get the same result.
> > Is this problem only related to the install or if I install using
> > serial console would it be a head-less machine = no use ?
> > 
> > I also read that their are no trouble with installing on 712/60.
> > I got 2, one with the second LAN/Serial Card (So I can use it as a
> > FW). Bot are starting but are hanging after the message:
> > 
> > The Installation Program is determining the current state
> > of your system and the next installation step that should
> >  be performed.
> > 
> > It hangs there forever on both boxes.
> > 
> > Anyone succeded with a install of Debian 3 on the above HW that could
> > give me a hand,
> > I am giving PA Risc a chance until I need to put the Sparc and the
> > Intel back into the plans.
> > 
> > / Adam
> > 
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


From - Thu Nov 08 21:26:38 2018
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From: "Adam Skaffloth" <adam.sk@groovy.ffloth.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Tried to Install Debian 3r1 on C110, C180 and 2 712/60, no luck.
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Did you install it from the woody iso ?
My install are from the iso image.
Or did you use netinstall ?

The C180 has 768MB Ram, the C110 has 512MB.
The 712s has 64MB and 80MB.

All above machines was running HP-UX 10.20 or 11.00 before I tried to
install,
or still is as nothing has been installed yet.
So I know they are working.

I need to know if this is a installer problem in woody iso.
I have seen that a lot of people have got these machines installed and
working,
but did they use a previous version or did they use netinstalls ?

I am also confused that there are reference to some problems with different
PS/2
keyboards. I used original HP Workstation Keyboard and mouse and still got
the problem with
the C110 and C180.

/ Adam

-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Thibaut
VARENE
Sent: Saturday, February 01, 2003 1:30 AM
To: adam.sk@groovy.ffloth.com
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Tried to Install Debian 3r1 on C110, C180
and 2 712/60, no luck.


On Fri, 31 Jan 2003 20:27:21 -0800
"Adam Skaffloth" <adam.sk@groovy.ffloth.com> wrote:


> The Visualize-EG in C180 seems not be working, seen threads about that,
> so installed the Visualize-24 card from the C110 on the C180 and get the
> same result.
IIRC, Visualize-EG should be working with STIfb driver.

> I also read that their are no trouble with installing on 712/60.
> I got 2, one with the second LAN/Serial Card (So I can use it as a FW).
We have that conf as well, and installed it without any problem.
> Bot are starting but are hanging after the message:
>
> The Installation Program is determining the current state
> of your system and the next installation step that should
>  be performed.
>
> It hangs there forever on both boxes.
That's definitely not normal.
How much RAM does these boxes have ?
We noticed that bellow 32MB of RAM, the installer may 'Defunct' during the
install process. In that case you would have to install the HD into another
box, prepare it and install the software on it, and plug it back into the
712, see the PA-RISC/Linux Boot HOWTO for details
(http://pateam.esiee.fr/doc.html)

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




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Subject: Re: [parisc-linux] Tried to Install Debian 3r1 on C110, C180 and 2 712/60, no luck.
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On Sat, 1 Feb 2003 10:26:57 -0800
"Adam Skaffloth" <adam.sk@groovy.ffloth.com> wrote:

> Did you install it from the woody iso ?
> My install are from the iso image.
> Or did you use netinstall ?
netinsts and 3.0r0
haven't tried yet 3.0r1
> 
> The C180 has 768MB Ram, the C110 has 512MB.
> The 712s has 64MB and 80MB.
far enough.
> 
> I need to know if this is a installer problem in woody iso.
most unlikely.
I'd suspect a problem with you CD. Have you checked checksums and tried with another CD?
> 
> I am also confused that there are reference to some problems with different
> PS/2
> keyboards. I used original HP Workstation Keyboard and mouse and still got
> the problem with
> the C110 and C180.
any ps/2 keyboard/mouse *should* work.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


From - Thu Nov 08 21:26:38 2018
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From: "Adam Skaffloth" <adam.sk@groovy.ffloth.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Tried to Install Debian 3r1 on C110, C180 and 2 712/60, no luck.
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I downloaded the iso images from
ftp://gsyprf10.external.hp.com/debian-cd/3.0_r0/hppa/
I went back to check for the MD5 Checksums.
They did not compare, but then I saw that the MD5SUM file was referencing
i386 disks,
under the hppa directory :)

I then tried jigdo download, it could find the first segment that are under
above server,
but could after that not find any other, dead end.

Under ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/
are a lot of test netinstalls,
Is there any of them that are corresponfing to 3.0r0 ?
Should I download the .iso image or is the lifimage to prefer ?

Where do I find netinstall for woody ?

/ Adam

-----Original Message-----
From: Thibaut VARENE [mailto:varenet@esiee.fr]
Sent: Saturday, February 01, 2003 11:07 AM
To: adam.sk@groovy.ffloth.com
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Tried to Install Debian 3r1 on C110, C180
and 2 712/60, no luck.


On Sat, 1 Feb 2003 10:26:57 -0800
"Adam Skaffloth" <adam.sk@groovy.ffloth.com> wrote:

> Did you install it from the woody iso ?
> My install are from the iso image.
> Or did you use netinstall ?
netinsts and 3.0r0
haven't tried yet 3.0r1
>
> The C180 has 768MB Ram, the C110 has 512MB.
> The 712s has 64MB and 80MB.
far enough.
>
> I need to know if this is a installer problem in woody iso.
most unlikely.
I'd suspect a problem with you CD. Have you checked checksums and tried with
another CD?
>
> I am also confused that there are reference to some problems with
different
> PS/2
> keyboards. I used original HP Workstation Keyboard and mouse and still got
> the problem with
> the C110 and C180.
any ps/2 keyboard/mouse *should* work.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Subject: Re: [parisc-linux] Tried to Install Debian 3r1 on C110, C180 and 2 712/60, no luck.
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I was using the built in graphics interface in my C180 before I sold it including using X on it.
derek
 Christian Suder <csuder@cisco.com> wrote:
Hi Adam,

no kidding, I am/have been running it on a C110, C180 and 712.... ;-) 
Although the 712 is a /80 not a /60, and that was before the official 
woody release. But the C110 and C180 were both installed from the same 
release CD. No problems with either one, but the C180 does have a 
visualize in it, the build in EG is not supported.

Regarding the keyboard disconnect/reconnect - that would only be needed 
for HIL keyboards, AFAIK. I used whatever PS/2 keyboard and mouse I had 
sitting around and that worked.

Christian



Adam Skaffloth wrote:
> Hi !
> 
> I wonder if someone could give me a help in the right direction.
> I have a C110, a C180 and 2 712/60.
> C110 would boot fine until you get to the first menu, then the keyboard
> would be out.
> I have tried the previous tricks about disconnect/reconnect the keyboard,
> but to no use.
> The Visualize-EG in C180 seems not be working, seen threads about that,
> so installed the Visualize-24 card from the C110 on the C180 and get the
> same result.
> Is this problem only related to the install or if I install using serial
> console would it be a head-less machine = no use ?
> 
> I also read that their are no trouble with installing on 712/60.
> I got 2, one with the second LAN/Serial Card (So I can use it as a FW).
> Bot are starting but are hanging after the message:
> 
> The Installation Program is determining the current state
> of your system and the next installation step that should
> be performed.
> 
> It hangs there forever on both boxes.
> 
> Anyone succeded with a install of Debian 3 on the above HW that could give
> me a hand,
> I am giving PA Risc a chance until I need to put the Sparc and the Intel
> back into the plans.
> 
> / Adam
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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<P>I was using the built in graphics interface in my C180 before I sold it including using X on it.
<P>derek
<P>&nbsp;<B><I>Christian Suder &lt;csuder@cisco.com&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px"><BR>Hi Adam,<BR><BR>no kidding, I am/have been running it on a C110, C180 and 712.... ;-) <BR>Although the 712 is a /80 not a /60, and that was before the official <BR>woody release. But the C110 and C180 were both installed from the same <BR>release CD. No problems with either one, but the C180 does have a <BR>visualize in it, the build in EG is not supported.<BR><BR>Regarding the keyboard disconnect/reconnect - that would only be needed <BR>for HIL keyboards, AFAIK. I used whatever PS/2 keyboard and mouse I had <BR>sitting around and that worked.<BR><BR>Christian<BR><BR><BR><BR>Adam Skaffloth wrote:<BR>&gt; Hi !<BR>&gt; <BR>&gt; I wonder if someone could give me a help in the right direction.<BR>&gt; 
 I have a C110, a C180 and 2 712/60.<BR>&gt; C110 would boot fine until you get to the first menu, then the keyboard<BR>&gt; would be out.<BR>&gt; I have tried the previous tricks about disconnect/reconnect the keyboard,<BR>&gt; but to no use.<BR>&gt; The Visualize-EG in C180 seems not be working, seen threads about that,<BR>&gt; so installed the Visualize-24 card from the C110 on the C180 and get the<BR>&gt; same result.<BR>&gt; Is this problem only related to the install or if I install using serial<BR>&gt; console would it be a head-less machine = no use ?<BR>&gt; <BR>&gt; I also read that their are no trouble with installing on 712/60.<BR>&gt; I got 2, one with the second LAN/Serial Card (So I can use it as a FW).<BR>&gt; Bot are starting but are hanging after the message:<BR>&gt; <BR
 >&gt; The Installation Program is determining the current state<BR>&gt; of your system and the next installation step that should<BR>&gt; be performed.<BR>&gt; <BR>&gt; It hangs there forever on both boxes.<BR>&gt; <BR>&gt; Anyone succeded with a install of Debian 3 on the above HW that could give<BR>&gt; me a hand,<BR>&gt; I am giving PA Risc a chance until I need to put the Sparc and the Intel<BR>&gt; back into the plans.<BR>&gt; <BR>&gt; / Adam<BR>&gt; <BR>&gt; <BR>&gt; _______________________________________________<BR>&gt; parisc-linux mailing list<BR>&gt; parisc-linux@lists.parisc-linux.org<BR>&gt; http://lists.parisc-linux.org/mailman/listinfo/parisc-linux<BR><BR><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org
 <BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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From - Thu Nov 08 21:26:38 2018
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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Tried to Install Debian 3r1 on C110, C180 and 2 712/60, no luck.
Date: Sat, 1 Feb 2003 23:26:37 +0100
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On Sat, 1 Feb 2003 13:34:24 -0800
"Adam Skaffloth" <adam.sk@groovy.ffloth.com> wrote:

> I downloaded the iso images from
> ftp://gsyprf10.external.hp.com/debian-cd/3.0_r0/hppa/
> I went back to check for the MD5 Checksums.
> They did not compare, but then I saw that the MD5SUM file was referencing
> i386 disks,
> under the hppa directory :)
the 3.0r0 ISO on pateam.esiee.fr has its checksum displayed on the website.
> 
> Under ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/
> are a lot of test netinstalls,
> Is there any of them that are corresponfing to 3.0r0 ?
> Should I download the .iso image or is the lifimage to prefer ?
They all come from pateam.esiee.fr as well, and all feature the newest kernels and boot-floppies available, and are based on woody, so they would indeed correspond to 3.0r0.

The lifimages are only netbootable kernel images.

You would probably need the ISO to help a netinstal procedure.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


From - Thu Nov 08 21:26:38 2018
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From: "Adam Skaffloth" <adam.sk@groovy.ffloth.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Tried to Install Debian 3r1 on C110, C180 and 2 712/60, no luck.
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I tried the latest one, but that are not able to configure the kernel
modules,
Message is:

depmod: Can't open /lib/modules/2.4.20-32/modules.dep for writing.

As the netboot seems to work but not the full iso images.
Can you guide me to a know working netboot iso that I can use ?

/ Adam

-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Thibaut
VARENE
Sent: Saturday, February 01, 2003 2:27 PM
To: adam.sk@groovy.ffloth.com
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Tried to Install Debian 3r1 on C110, C180
and 2 712/60, no luck.


On Sat, 1 Feb 2003 13:34:24 -0800
"Adam Skaffloth" <adam.sk@groovy.ffloth.com> wrote:

> I downloaded the iso images from
> ftp://gsyprf10.external.hp.com/debian-cd/3.0_r0/hppa/
> I went back to check for the MD5 Checksums.
> They did not compare, but then I saw that the MD5SUM file was referencing
> i386 disks,
> under the hppa directory :)
the 3.0r0 ISO on pateam.esiee.fr has its checksum displayed on the website.
>
> Under ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/
> are a lot of test netinstalls,
> Is there any of them that are corresponfing to 3.0r0 ?
> Should I download the .iso image or is the lifimage to prefer ?
They all come from pateam.esiee.fr as well, and all feature the newest
kernels and boot-floppies available, and are based on woody, so they would
indeed correspond to 3.0r0.

The lifimages are only netbootable kernel images.

You would probably need the ISO to help a netinstal procedure.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux




From - Thu Nov 08 21:26:38 2018
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From: grundler@dsl2.external.hp.com (Grant Grundler)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Tried to Install Debian 3r1 on C110, C180 and 2 712/60, no luck.
Date: Sat, 1 Feb 2003 18:36:17 -0700
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On Sat, Feb 01, 2003 at 01:34:24PM -0800, Adam Skaffloth wrote:
> ftp://gsyprf10.external.hp.com/debian-cd/3.0_r0/hppa/
> I went back to check for the MD5 Checksums.
> They did not compare, but then I saw that the MD5SUM file was referencing
> i386 disks, under the hppa directory :)

sorry - I thought I corrected that a while ago.
I guess I missed it on that server.
Let me post proper MD5 sums.

grant


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Subject: [parisc-linux] Compiler switches
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Just wondering how many of the compiler switches we really need these days.
Here's what we currently do:

cflags-y        := -D__linux__ -pipe -fno-strength-reduce

# These should be on for older toolchains or SOM toolchains that don't
# enable them by default.
cflags-y        += -mno-space-regs -mfast-indirect-calls

# No fixed-point multiply
cflags-y        += -mdisable-fpregs

# Without this, "ld -r" results in .text sections that are too big
# (> 0x40000) for branches to reach stubs.
cflags-y        += -ffunction-sections


-D__linux__ looks like it can go away.

-pipe I'm agnostic on.  Someone want to benchmark builds both with and
without it?

-fno-strength-reduce has been there since before we moved to ELF -- over 3
years.  Any bug this was working around has hopefully been long-squashed.
I think we should eliminate this and submit PRs if it finds new holes.

-mno-space-regs & -mfast-indirect-calls can also go away, I think.
I can't imagine that we ever didn't have them as default on a gcc
3.0-based compiler.

Do we still need -ffunction-sections?  I'm inclined to leave it anyway
to enable compilation with older toolchains.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Compiler switches
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> -D__linux__ looks like it can go away.

Agreed.  This is defined for sure in 3.1/3.2 and later.

> -fno-strength-reduce has been there since before we moved to ELF -- over 3
> years.  Any bug this was working around has hopefully been long-squashed.
> I think we should eliminate this and submit PRs if it finds new holes.

I always wondered why this option was used.

> -mno-space-regs & -mfast-indirect-calls can also go away, I think.
> I can't imagine that we ever didn't have them as default on a gcc
> 3.0-based compiler.

These are still not the default but possibly they should be.

Actually, I can see that we can save a couple of instructions when
generating long indirect calls to a symbol reference when no space
registers is defined.

> Do we still need -ffunction-sections?  I'm inclined to leave it anyway
> to enable compilation with older toolchains.

Cross my fingers, but I believe that the distance problem for calls
is fixed 3.2.2.  However, if there really are objects with .text larger
than 240000 bytes, then you should probably still define -ffunction-sections.
When the total code bytes exceeds the above limit (PA 1.X), gcc switches
to long indirect calls.  These are horribly inefficient.  There are
better sequences but we need some new support in gas and ld to handle
the relocations and generate appropriate stubs.

For example, the following non-pic sequence works under hpux with the HP
assembler, but not linux or hpux with gas:

	ldil L'dest,%r1
	be R'dest(%sr4,%r1)

Long pic pc-relative and symbol difference sequences also don't work.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Cross my fingers, but I believe that the distance problem for calls
> is fixed 3.2.2.  However, if there really are objects with .text larger

Lamont still saw some function-section failures with Debian gcc 
3.2.2-pre7 (20030128)

This one looks pretty small:
http://buildd.debian.org/fetch.php?&pkg=synopsis&ver=0.4.1cvs20030125-1&arch=hppa&stamp=1044017572&file=log&as=raw

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> Lamont still saw some function-section failures with Debian gcc 
> 3.2.2-pre7 (20030128)

If this is building C++ code, then the problem is likely in the linker.
Try this:

Index: emultempl/hppaelf.em
===================================================================
RCS file: /cvs/src/src/ld/emultempl/hppaelf.em,v
retrieving revision 1.24
diff -u -3 -p -r1.24 hppaelf.em
--- emultempl/hppaelf.em	30 Nov 2002 08:39:46 -0000	1.24
+++ emultempl/hppaelf.em	2 Feb 2003 05:41:38 -0000
@@ -50,7 +50,7 @@ static int need_laying_out = 0;
 /* Maximum size of a group of input sections that can be handled by
    one stub section.  A value of +/-1 indicates the bfd back-end
    should use a suitable default size.  */
-static bfd_signed_vma group_size = 1;
+static bfd_signed_vma group_size = -1;
 
 /* Stops the linker merging .text sections on a relocatable link,
    and adds millicode library to the list of input files.  */

This reduces the stub pressure by about 50%.  I also installed this
yesterday to fix a related problem:

2003-01-31  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa.c (pa_output_function_prologue, pa_output_function_epilogue): Move
	updating of total_code_bytes from prologue to epilogue.

The updating of total_code_bytes in the prologue changed caused the call
sizes to change in a function that spanned the 240000 byte boundary.  This
caused the branch distance of any branch over a call to increase, and
sometimes exceed the range of the branch.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> http://buildd.debian.org/fetch.php?&pkg=synopsis&ver=0.4.1cvs20030125-1&arch=hppa&stamp=1044017572&file=log&as=raw

Yah, that's a stub table overflow.  Try the linker patch.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> > http://buildd.debian.org/fetch.php?&pkg=synopsis&ver=0.4.1cvs20030125-1&arch=hppa&stamp=1044017572&file=log&as=raw
> 
> Yah, that's a stub table overflow.  Try the linker patch.

Oh, I should mention there is a linker option to change the stub table
size.  It's "--stub-group-size=N".  For more info, "ld --help".

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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In reference to a message from John David Anglin, dated Feb 02:
> > http://buildd.debian.org/fetch.php?&pkg=synopsis&ver=0.4.1cvs20030125-1&arch=hppa&stamp=1044017572&file=log&as=raw
> 
> Yah, that's a stub table overflow.  Try the linker patch.

yup, this seems to work.

randolph


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On Sat, Feb 01, 2003 at 11:56:40PM -0500, John David Anglin wrote:
> > -D__linux__ looks like it can go away.
> 
> Agreed.  This is defined for sure in 3.1/3.2 and later.

Plus there's very little code which checks for __linux__ in the source tree ;-)

> > -fno-strength-reduce has been there since before we moved to ELF -- over 3
> > years.  Any bug this was working around has hopefully been long-squashed.
> > I think we should eliminate this and submit PRs if it finds new holes.
> 
> I always wondered why this option was used.

OK, I'll take it out now.

> > -mno-space-regs & -mfast-indirect-calls can also go away, I think.
> > I can't imagine that we ever didn't have them as default on a gcc
> > 3.0-based compiler.
> 
> These are still not the default but possibly they should be.
> 
> Actually, I can see that we can save a couple of instructions when
> generating long indirect calls to a symbol reference when no space
> registers is defined.

I think they definitely should be implied by configuring for hppa-linux.
I don't see any enthusiasm for allowing use of additional space registers
for special purposes.

> > Do we still need -ffunction-sections?  I'm inclined to leave it anyway
> > to enable compilation with older toolchains.
> 
> Cross my fingers, but I believe that the distance problem for calls
> is fixed 3.2.2.  However, if there really are objects with .text larger
> than 240000 bytes, then you should probably still define -ffunction-sections.

hmm.. part of the problem is the ld -r steps.  The current 2.5 build
process does things like:

  hppa-linux-gcc -Wp,-MD,drivers/block/.loop.o.d -D__KERNEL__ -Iinclude -Wall -W
strict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -D__linux_
_ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-calls -mdisable-fpr
egs -ffunction-sections -march=1.1 -mschedule=7100LC -fomit-frame-pointer -nostd
inc -iwithprefix include    -DKBUILD_BASENAME=loop -DKBUILD_MODNAME=loop   -c -o
 drivers/block/loop.o drivers/block/loop.c

   hppa-linux-ld   -r -o drivers/block/built-in.o drivers/block/elevator.o drive
rs/block/ll_rw_blk.o drivers/block/ioctl.o drivers/block/genhd.o drivers/block/s
csi_ioctl.o drivers/block/deadline-iosched.o drivers/block/rd.o drivers/block/lo
op.o

   hppa-linux-ld   -r -o drivers/built-in.o drivers/pci/built-in.o drivers/paris
c/built-in.o drivers/serial/built-in.o drivers/parport/built-in.o drivers/base/b
uilt-in.o drivers/char/built-in.o drivers/block/built-in.o drivers/misc/built-in
.o drivers/net/built-in.o drivers/media/built-in.o drivers/scsi/built-in.o drive
rs/cdrom/built-in.o drivers/video/built-in.o drivers/usb/built-in.o drivers/inpu
t/built-in.o drivers/input/serio/built-in.o drivers/md/built-in.o drivers/eisa/b
uilt-in.o

        hppa-linux-ld  -T arch/parisc/vmlinux.lds.s arch/parisc/kernel/head.o   
init/built-in.o --start-group  usr/built-in.o arch/parisc/kernel/pdc_cons.o arch
/parisc/kernel/process.o  arch/parisc/mm/built-in.o  arch/parisc/kernel/built-in
.o  arch/parisc/hpux/built-in.o  arch/parisc/math-emu/built-in.o arch/parisc/ker
nel/init_task.o  kernel/built-in.o  mm/built-in.o  fs/built-in.o  ipc/built-in.o
  security/built-in.o  crypto/built-in.o  lib/lib.a  arch/parisc/lib/lib.a `hppa
-linux-gcc -print-libgcc-file-name`  drivers/built-in.o  sound/built-in.o  arch/
parisc/oprofile/built-in.o  net/built-in.o --end-group  -o vmlinux

Now, which .text is limited to 240k?  loop.o, drivers/block/built-in.o,
drivers/built-in.o or vmlinux?

> When the total code bytes exceeds the above limit (PA 1.X), gcc switches
> to long indirect calls.  These are horribly inefficient.

Horribly inefficient in terms of being prefetchable?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> I think they definitely should be implied by configuring for hppa-linux.
> I don't see any enthusiasm for allowing use of additional space registers
> for special purposes.

Ok, I will do some testing with fast indirect and no space registers.

> hmm.. part of the problem is the ld -r steps.  The current 2.5 build
> process does things like:

ld -r is generally bad news on the PA.  The compiler selects call
types based on the distance from the call to the beginning of the
current translation unit, or function if -ffunction-sections is being
used.  Relinking without using -ffunction-sections will change the
distance to the beginning of the code section for all calls.  That's
where the linker will insert a long call stub if necessary.  If linking
with ld -r creates an object with a text section larger than 240k, then
there are likely to be calls which can't reach a long branch stub for
calls external to the object.

I guess if the linker could create stubs when doing ld -r then this
problem could be avoided.  However, I think stubs are created only
when doing a final link.

Using -ffunction-sections may have some drawbacks.  Normally, related
functions are placed in the same object.  The linker does some grouping
of sections but I doubt it is optimal.  So, you might end up needing
stubs in some cases where you would want a simple {bl|b,l}.  You wouldn't
want this to happen when you have a tightly coupled pair of sibling
calls.

> Now, which .text is limited to 240k?  loop.o, drivers/block/built-in.o,
> drivers/built-in.o or vmlinux?

My understanding is that it's the size of any text sections involved
in a final link.  The linker intersperses stub groups between the text
sections that are used in any final link.  Thus, the final text section
for vmlinux can be much larger than 240k and stubs will be provided
for any branches exceeding 240k.  Thus, you shouldn't need -ffunction-sections
when compiling objects that will be prelinked using ld -r if the resultant
size of the text sections after prelinking is smaller than 240k.

> > When the total code bytes exceeds the above limit (PA 1.X), gcc switches
> > to long indirect calls.  These are horribly inefficient.
> 
> Horribly inefficient in terms of being prefetchable?

No, in terms of the number of instructions involved.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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hi all,

sorry if someone saw this email already on debian/hppa list, but i didn't
get any usable information there, and still stuck with the box.
additions are that i tried the AUI port too (after acquiring a transceiver
:) ) with the same results described lower, and tomorrow i'll get a scsi
cdrom to install a debian on it, just to see if the ethernet ports work at
all now.
thanks in advance if anybody has any idea.

-w-

---------- Original message ----------
Date: Tue, 28 Jan 2003 03:39:09 +0100 (CET)
From: Zoltan HERPAI <wigyori@2p.hu>
To: debian-hppa@lists.debian.org
Subject: 712/60 won't boot, strange arp addresses

hi,

i recently acquired a 712/60 workstation, trying to boot it from lan.
tcpdump looks like this (10.1.1.254 is the bootp server, 10.1.1.253 would
be the IP of the hp box):

03:29:20.253733 0.0.0.0.68 > 255.255.255.255.67:  xid:0xc1f968d1 ether
8:0:9:91:ed:a0 [|bootp]
03:29:20.259366 10.1.1.254.67 > 10.1.1.253.68:  xid:0xc1f968d1
Y:10.1.1.253 S:10.1.1.254 ether 8:0:9:91:ed:a0 sname "ironcurtai"[|bootp]
(DF)
03:29:22.253780 0.0.0.0.68 > 255.255.255.255.67:  xid:0xc1f968d1 secs:2
ether 8:0:9:91:ed:a0 [|bootp]
03:29:22.258825 10.1.1.254.67 > 10.1.1.253.68:  xid:0xc1f968d1 secs:2
Y:10.1.1.253 S:10.1.1.254 ether 8:0:9:91:ed:a0 sname "ironcurtai"[|bootp]
(DF)
03:29:26.253525 0.0.0.0.68 > 255.255.255.255.67:  xid:0xc1f968d1 secs:6
ether 8:0:9:91:ed:a0 [|bootp]
03:29:26.258648 10.1.1.254.67 > 10.1.1.253.68:  xid:0xc1f968d1 secs:6
Y:10.1.1.253 S:10.1.1.254 ether 8:0:9:91:ed:a0 sname "ironcurtai"[|bootp]
(DF)

after this, some strange arp lookups appear in the tcpdump output, like
this:
03:28:48.961476 arp who-has 10.1.1.253 (0:0:0:0:0:70) tell 10.1.1.254
03:28:49.961465 arp who-has 10.1.1.253 (0:0:0:0:0:70) tell 10.1.1.254

the arp address sometimes change, to 0:0:0:0:0:66, or :64. don't know what
this is, bootpd replies to the requests, but they never reach the 712. i
use the rj45 port, which worked when i bought it from a company. any
ideas? i can send the bootptab config on request (hoping the reply will
get to the recipient ;) )

tia,
-w-


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I have been trying to get linux-2.4.20-pa23 to work with my j2240. For
awhile now I thought it was the console, but it isn't it is the kernel.
Here are the steps I took: 

Got the box running with debian kernel 2.4.17-32, 
updated to 2.4.18-32, and everything was working fine. 
I took the config from 2.4.18-32 and
used that as my starting point for 2.4.20-pa23 
ran make dep and make vmlinux; made and installed the modules

The box just stops at the branching message. Let me note the console is
set properly. I posted here before but think I was ignored becuase 
it was assumed I hadn't read the faq. Please I have read the faq, I just
need help I would love to get this box working with a recent kernel and 
not have to depend on the packaged debian kernels. 

Thanks. 

-- 
Aaron St. Pierre			tel: 978.828.6177
asp@ungod.com

 Increased knowledge will help you now.  Have mate's phone bugged.


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I got this same error when I had bad memory on my 735/99.

It was preceded by the kernel panicking during a large tar job. Then on subsequent boots, I'd get what you describe here.

I repaired the damage by booting off an install CD, going into the shell, and fscking the disk(s). This would not occur again until the next time I tried a large tar operation.

I had no idea that I had bad memory until I sent a copy of the messages from the panic to this list. Even then I found it hard to believe because everything ran so well except the tarring. 
On Fri, 31 Jan 2003 21:38:59 +0100 (CET)
Jochen Friedrich <jochen@scram.de> wrote:

> Hi,
> 
> today, i noticed the following message in my dmesg (boot info retained):
> 
> Linux version 2.4.20-pa18 (root@ebru) (gcc version 3.0.4) #7 Wed Jan 1
> 18:09:15
> CET 2003
> FP[0] enabled: Rev 3 Model 0
> The 32-bit Kernel has started...
> Determining PDC firmware type: Snake.
> model 00002000 00000481 00000000 00000000 052e3468 000011f4 00000004
> 0000000d 00
> 000000
> vers  00000003
> model 9000/720
> [...]
> 53c700: consistent memory allocation failed
> 53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
> scsi0: 53c700 rev 0
> scsi0 : LASI SCSI 53c700
>   Vendor: TEAC      Model: FC-1     HF   07  Rev: RV A
>   Type:   Direct-Access                      ANSI SCSI revision: 01 CCS
>   Vendor: IBM       Model: DCAS-34330        Rev: S61A
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Attached scsi removable disk sda at scsi0, channel 0, id 3, lun 0
> Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
> sda : READ CAPACITY failed.
> sda : status = 1, message = 00, host = 0, driver = 08
> Current sd00:00: sns = 70  2
> ASC= 4 ASCQ= 0
> Raw sense data:0x70 0x00 0x02 0x00 0x00 0x00 0x00 0x08 0x00 0x00 0x00 0x00
> 0x04
> 0x00 0x00 0x00
> sda : block size assumed to be 512 bytes, disk size 1GB.
> Partition check:
>  sda: I/O error: dev 08:00, sector 0
>  I/O error: dev 08:00, sector 0
>  unable to read partition table
> scsi0: (6:0) Enabling Tag Command Queuing
> SCSI device sdb: 8467200 512-byte hdwr sectors (4335 MB)
>  sdb: sdb1 sdb2 sdb3 sdb4
> [...] [sda is floppy, sdb is hard disk]
> scsi0 (6:0) Target is suffering from tag starvation.
> scsi0: (6:0) phase mismatch at 0228, phase IO BSY REQ DATA_IN
> scsi0: Bus Reset detected, executing command 1034c800, slot 10361390, dsp
> 003602
> 28[0228]
>  failing command because of reset, slot 10360520, cmnd 1034b600
>  failing command because of reset, slot 10360654, cmnd 1034bc00
>  failing command because of reset, slot 10360788, cmnd 1034a400
>  failing command because of reset, slot 103608bc, cmnd 1034ca00
>  failing command because of reset, slot 10360b24, cmnd 1034ce00
>  failing command because of reset, slot 10360c58, cmnd 1034b000
>  failing command because of reset, slot 10360d8c, cmnd 1034be00
>  failing command because of reset, slot 10360ec0, cmnd 1034cc00
>  failing command because of reset, slot 10360ff4, cmnd 1034ba00
>  failing command because of reset, slot 10361128, cmnd 1034a000
>  failing command because of reset, slot 1036125c, cmnd 1034b800
>  failing command because of reset, slot 10361390, cmnd 1034c800
>  failing command because of reset, slot 103614c4, cmnd 1034a200
>  failing command because of reset, slot 103615f8, cmnd 1034b400
>  failing command because of reset, slot 1036172c, cmnd 1034c600
> scsi0 (6:0) broken device is looping in contingent allegiance: ignoring
> scsi0 (6:0) New error handler wants to abort command
>         0x2a 00 00 41 7b e7 00 00 08 00
> scsi0 (6:0) New error handler wants to abort command
>         0x28 00 00 6e 89 4f 00 00 08 00
> scsi0 (6:0) New error handler wants to abort command
>         0x2a 00 00 15 7e 1f 00 00 08 00
> scsi0 (6:0) New error handler wants to abort command
>         0x2a 00 00 3d 7c 4f 00 00 08 00
> scsi0 (6:0) New error handler wants to abort command
>         0x2a 00 00 0d 7c a7 00 00 08 00
> scsi0 (6:0) New error handler wants to abort command
>         0x2a 00 00 1d 7b cf 00 00 08 00
> scsi0 (6:0) New error handler wants device reset
>         0x2a 00 00 41 7b e7 00 00 08 00
> scsi0 (6:0) New error handler wants BUS reset, cmd 1034a400
>         0x2a 00 00 41 7b e7 00 00 08 00
> scsi0: Bus Reset detected, executing command 00000000, slot 00000000, dsp
> 003604
> a8[04a8]
>  failing command because of reset, slot 10360ff4, cmnd 1034be00
>  failing command because of reset, slot 10361128, cmnd 1034b000
>  failing command because of reset, slot 1036125c, cmnd 1034ce00
>  failing command because of reset, slot 10361390, cmnd 1034ca00
>  failing command because of reset, slot 103614c4, cmnd 1034a400
>  failing command because of reset, slot 103615f8, cmnd 1034bc00
> SCSI disk error : host 0 channel 0 id 6 lun 0 return code = 8000002
> Current sd08:13: sns = 70  0
> Raw sense data:0x70 0x00 0x00 0x00 0x00 0x00 0x00 0x18 0x00 0x00 0x00 0x00
> 0x00
> 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0xff 0xff 0xff 0xff
> 0x00
> 0x00 0x00 0x00
>  I/O error: dev 08:13, sector 3145816
> 
> It's the phase mismatch stuff which is scaring me quite a bit ;-). It
> could have been a defective sector which has been remapped (a disk scan
> didn't show any problem) as a result of the a error, but then i would have
> expected a simple IO error without that bus reset just before the problem.
> 
> Weird...
> 
> --jochen
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


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On Sun, Feb 02, 2003 at 09:02:47PM -0500, Aaron St. Pierre wrote:
> I took the config from 2.4.18-32
> and used that as my starting point for 2.4.20-pa23 

Can you:
# mv .config ../config-orig
# yes "" | make oldconfig
 (or something like that)

The default kernel should work on j2240.

grant

ps. FAQ has a link to "how to report kernel bugs"
	http://www.parisc-linux.org/faq/index.html#kernelbugreport


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First, thanks for the response, I really appreciate it. 

I setup a page with all of the information from the "basics" section
of the faq. That page is : http://hadron.dyndns.org/parisc/

Grant, I did as you said, and the same thing happened. What disturbs me
is when it stopped at the brancing message and I waited about 15 minutes
then pressed the toc button there was still nothing in the pim ( I
cleared it prior to boot) I hope this doesn't mean the kernel isn't even
loading and it has something to do with palo. 

Maybe I am once again making this too complicated. If I left anything 
out let me know and I will add it. 

Thanks again for your help. :) 
In another life Grant Grundler wrote:

> On Sun, Feb 02, 2003 at 09:02:47PM -0500, Aaron St. Pierre wrote:
> > I took the config from 2.4.18-32
> > and used that as my starting point for 2.4.20-pa23 
> 
> Can you:
> # mv .config ../config-orig
> # yes "" | make oldconfig
>  (or something like that)
> 
> The default kernel should work on j2240.
> 
> grant
> 
> ps. FAQ has a link to "how to report kernel bugs"
> 	http://www.parisc-linux.org/faq/index.html#kernelbugreport

-- 
Aaron St. Pierre			tel: 978.828.6177
asp@ungod.com

 A day without sunshine is like a day without orange juice.


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On Mon, Feb 03, 2003 at 12:33:36AM -0500, Aaron St. Pierre wrote:
> I setup a page with all of the information from the "basics" section
> of the faq. That page is : http://hadron.dyndns.org/parisc/

very good.

j2240 is pa8200 - ie 64-bit capable.
But don't use 64-bit kernel unless you know why you need to.

> Grant, I did as you said, and the same thing happened. What disturbs me
> is when it stopped at the brancing message and I waited about 15 minutes
> then pressed the toc button there was still nothing in the pim ( I
> cleared it prior to boot) I hope this doesn't mean the kernel isn't even
> loading and it has something to do with palo. 

your PIM dump only has the HPMC/memory/IO sections.
Didn't "ser pim" give you LPMC and TOC sections too?

Secondly, since your j2240 is dual CPU, the PIM dump should contain
the same info (HPMC, LPMC, TOC) for both CPUs.

Can you check if you firmware is anywhere near the current?
(See http://www.parisc-linux.org/faq/index.html#PDCupdate)


And the following from your log worries me despite the "ignore" part:
| Information: Boot device can't seek past 2Gb (ignore next error).
| byteio_read: seekread() returned -1 expected 2048

But nothing else indicated a problem loading the vmlinux.
I just don't see that when booting my a500.
It could be a difference in how palo interacts with IODC.

If you don't get any other hot tips, start disabling things in
the .config that you don't need: Parport, SBA/LBA/IOSAPIC,
USB, LCD/LED support, wireless, extra lan/scsi drivers, etc.

grant


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On Sun, Feb 02, 2003 at 11:03:59PM -0700, Grant Grundler wrote:
> If you don't get any other hot tips, start disabling things in
> the .config that you don't need: Parport, SBA/LBA/IOSAPIC,
> USB, LCD/LED support, wireless, extra lan/scsi drivers, etc.

I forgot to mention STI drivers - ditch those if you are using
serial console even though I doubt they are the problem.

grant


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Yea I missed that one. With this version of the firmware you have to
request the specific PIM, HPMC, LPMC, TOC. Anyway I got the the TOC
information for both processors after I tried to boot my kernel. It is
all on that page ( http://hadron.dyndns.org/parisc/ ) 

I also added a link to the firmware. I am running 2.0 of the firmware
and according to hp the most recent is 2.1 or : 

Patch Name: /firmware_patches/hp/cpu/PF_CJ224021
Description: HP 9000 Model J2240 firmware 2.1 patch
Date       : 00/10/06

I will start popping stuff out of the kernel, although I am sure I took
out all of the stuff wrt graphics. Another try for persistance sake wont
hurt :) 

As far as the palo message, i only started noticing it when I went to
v1.2 of palo. One thing I should note, when I set up / i made it ext3,
boot is off of / and not its own fs so when i realized what i did I just
changed fstab accordingly so it would mount as ext2, although that
couldn't be the problem either since it is loading the debian kernels.
Perhaps sleep is in order ?

:)

In another life Grant Grundler wrote:

> On Mon, Feb 03, 2003 at 12:33:36AM -0500, Aaron St. Pierre wrote:
> > I setup a page with all of the information from the "basics" section
> > of the faq. That page is : http://hadron.dyndns.org/parisc/
> 
> very good.
> 
> j2240 is pa8200 - ie 64-bit capable.
> But don't use 64-bit kernel unless you know why you need to.
> 
> > Grant, I did as you said, and the same thing happened. What disturbs me
> > is when it stopped at the brancing message and I waited about 15 minutes
> > then pressed the toc button there was still nothing in the pim ( I
> > cleared it prior to boot) I hope this doesn't mean the kernel isn't even
> > loading and it has something to do with palo. 
> 
> your PIM dump only has the HPMC/memory/IO sections.
> Didn't "ser pim" give you LPMC and TOC sections too?
> 
> Secondly, since your j2240 is dual CPU, the PIM dump should contain
> the same info (HPMC, LPMC, TOC) for both CPUs.
> 
> Can you check if you firmware is anywhere near the current?
> (See http://www.parisc-linux.org/faq/index.html#PDCupdate)
> 
> 
> And the following from your log worries me despite the "ignore" part:
> | Information: Boot device can't seek past 2Gb (ignore next error).
> | byteio_read: seekread() returned -1 expected 2048
> 
> But nothing else indicated a problem loading the vmlinux.
> I just don't see that when booting my a500.
> It could be a difference in how palo interacts with IODC.
> 
> If you don't get any other hot tips, start disabling things in
> the .config that you don't need: Parport, SBA/LBA/IOSAPIC,
> USB, LCD/LED support, wireless, extra lan/scsi drivers, etc.
> 
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
Aaron St. Pierre			tel: 978.828.6177
asp@ungod.com

 Men say of women what pleases them; women do with men what pleases them.
 		-- DeSegur


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> > Who would be a good contact for such a change?
> 
> In general, Thibaut or myself.
> Anyone with CVS *write* permission can change the parisc-linux
> web page but most don't touch it.

I'll admit to actually putting my hand up quite some time back to take
a look at the hwdb stuff.. but time pressures of part time study,
family etc sort meant I didn't get that far with it.

However, if I can find archive sent to me, I'll try to get it at least
installed here before Uni starts again for me and _try_ to make some
contribution....  but no promises.

Any suggestions etc should be noted somewhere, and the archive I guess
is as good as any, and I'll try getting something sorted out.

But again, don't hold your breath... I did volunteer for this a long
time ago, but it didn't come to anything then either... sorry.. :(

Pete
:wq


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On Mon, Feb 03, 2003 at 01:43:28AM -0500, Aaron St. Pierre wrote:
[snip]
> As far as the palo message, i only started noticing it when I went to
> v1.2 of palo. One thing I should note, when I set up / i made it ext3,
> boot is off of / and not its own fs so when i realized what i did I
[snip]

Your boot partition (/) is < 2GB, right?

-- 
Michael Wood <mwood@its.uct.ac.za>


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The file attachment from the message "[parisc-linux] 2.5.56-pa0 64bit
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The file attachment from the message "[parisc-linux] 2.5.56-pa0 64bit
successful boot", originally sent to you by Thibaut VARENE
(varenet@esiee.fr), has been forwarded to you from the Antigen Quarantine
area.
This attachment may have been re-scanned by Antigen and handled according to
the appropriate scan job's settings.



This e-mail and any attachments may be confidential or legally privileged.
If you received this message in error or are not the intended recipient, you
should destroy the e-mail message and any attachments or copies, and you are
prohibited from retaining, distributing, disclosing or using any information
contained herein.  Please inform us of the erroneous delivery by return
e-mail.  Thank you for your co-operation. 
Mercer Human Resource Consulting Limited is regulated by the Financial
Services Authority and is a member of the General Insurance Standards
Council. Registered in England No. 984275. Registered Office: Telford House,
14 Tothill Street, London SW1H 9NB 

  


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G24RThVtaWhp6gYK2Nz90bhN7wb4AThE881oDBA+PahkDp9ln2ufBl4Tx1XQVI59LPlmDR1wbXoD
ueku0w5ECY1JwXpfZb0vE3g4ki5v1dNmV5siJR4qbCt49ruT0XgjSFTrML6L1v83LrdSmSxivtC/
Y3W6iGDcqmj9pF1/VHFmpE7RsAUGcdS7SLi6F3L4CVGHx9p+mUUI2D9MHX3Od0H5nIJdWC4QU4pG
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FGl14TKC9hW7EB2va8Ow400vViHU5s4qT5bi0ulWSyZOhxMO+XUIl2F12wiOIQB/cSEhVxmyji2i
naDttdpq6ZwFq8nzLXT6yuH8p4b7FjorB12SEMtrY1vPsH22z/bZPttn+2yfH/f8Cx5QwekAUAAA

------_=_NextPart_000_01C2CB92.F332ED60--


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Yes, the boot partition is < 2GB. In fact here is the partion table as 
reported from fdisk. 

Disk /dev/sda: 9100 MB, 9100044288 bytes
64 heads, 32 sectors/track, 8678 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sda1   *         1        29     29680   f0  Linux/PA-RISC boot
/dev/sda2            30       267    243712   83  Linux
/dev/sda3           268      1221    976896   82  Linux swap
/dev/sda4          1222      5989   4882432    5  Extended
/dev/sda5          1222      3128   1952752   83  Linux
/dev/sda6          3129      5989   2929648   83  Linux

I will also add this info to my parisc page. I am going to start ripping
things out of the kernel a bit later today. One thing I will admit
ignorance about is the F0 partition. The debian install got vmlinux32 to
live in there but I haven't gotten any other kernels to live in there.
Not that that really matters since once can boot off of a kernel that
lives in an ext2 fs as long as it is within the first 2GB. Yawn, just
waking up ... 

In another life Michael Wood wrote:

> On Mon, Feb 03, 2003 at 01:43:28AM -0500, Aaron St. Pierre wrote:
> [snip]
> > As far as the palo message, i only started noticing it when I went to
> > v1.2 of palo. One thing I should note, when I set up / i made it ext3,
> > boot is off of / and not its own fs so when i realized what i did I
> [snip]
> 
> Your boot partition (/) is < 2GB, right?
> 
> -- 
> Michael Wood <mwood@its.uct.ac.za>

-- 
Aaron St. Pierre			tel: 978.828.6177
asp@ungod.com

 Have at you!


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From: Nahkola Mikko <mnahkola@trinms01.ntc.nokia.com>
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Subject: [parisc-linux] Yet another tar-triggered problem?
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I don't think this is the old tar problem this time ... well, I guess it 
could still be.

I hooked an external HP 35470A tape drive (DDS1 no compression) to the 
C240, loaded a tape, wondering if it had been written on a 35470A or a 
35480A (DDS1 / DCLZ) and, if it should have been the latter, if 
compression would have been turned on. I thought "oh well ... guess it'll 
inform me if it doesn't understand the format". 

Typed a "tar tvf /dev/st0", waited for a while and saw nothing so I 
though "OK, guess it doesn't find anything readable" and hit ^C a couple 
of times and pushed the eject button on the tape drive. Then I went away 
for a couple of minutes and when I came back ... the 70096's scrollback 
was full of something that looks like a hex dump, and then a HPMC at the 
end.

Now, is this a "feature" of the st driver or the tape drive, a bug, a 
broken 35470A, or something entirely different? I don't have too many 
35470As around for testing, most of them are still attached to the old 
servers... but I don't remember getting this on HP-UX, ever.

Kernel version was (again) the old 2.4.18-32, as I can't seem to get KDE 
to work properly with the newer kernels... ;-) but at least now I have 
the builtin ethernet at 100HD. And I was going to reboot anyway, due to 
repartitioning the sdb.

Is anyone interested in the hex dump? That's probably a kernel panic or 
some such, right? Everything before "ad40 ........ ........ ........" has 
scrolled out of the ring buffer but if someone's interested in that I'm 
not rebooting the box yet. I'd have to type it in by hand too... the 
console is a genuine HP 70096 terminal, in native mode. 

That'd mean I can't get the PIM stuff yet either, though. Um ... oh well, 
if someone's interested, I can always get that later.


The HPMC is as follows:
		Code=1 regs=102f3080 (Addr=00000000)
	
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110 Not tainted
r00-03  00000000 10300010 1010d4e8 ffffffff
r04-07  0000000f 0000029b 0000029b 103b2810
r08-11  0000000f 0000004d 0004000e 1033d060
r12-15  00000000 001ffff8 000000fd f0100000
r16-19  1039c5c0 f00001f8 f00001f0 f2000064
r20-23  0000000e 10f2c260 1024a2ac 10302810
r24-27  0001fd40 0000fd40 10f2c260 102f0010
r28-31  7f7fdee7 00000680 1039c9c0 1010d4e8
sr0-3   00000000 00000005 00000000 00000005
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1024a2d0 1024a2d4
 IIR: 00141860    ISR: 9227ffc8  IOR: 00000064
 CPU:        0   CR30: 1039c000 CR31: 103a0000
 ORIG_R28: 00000000


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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On Mon, Feb 03, 2003 at 01:43:28AM -0500, Aaron St. Pierre wrote:
> Anyway I got the the TOC information for both processors after
> I tried to boot my kernel. It is
> all on that page ( http://hadron.dyndns.org/parisc/ ) 

IIA Offset                   = 0x00000000f0080570

that's not a kernel address. Looks like a PDC call died. :^(

> I also added a link to the firmware. I am running 2.0 of the firmware
> and according to hp the most recent is 2.1 or : 
> 
> Patch Name: /firmware_patches/hp/cpu/PF_CJ224021
> Description: HP 9000 Model J2240 firmware 2.1 patch
> Date       : 00/10/06

hmm...I'd stick with 2.0 for now.

> I will start popping stuff out of the kernel, although I am sure I took
> out all of the stuff wrt graphics. Another try for persistance sake wont
> hurt :) 

You still have STI drivers enabled and CONFIG_FB enabled.
I'd start with those and then remove others one-by-one.

> As far as the palo message, i only started noticing it when I went to
> v1.2 of palo. One thing I should note, when I set up / i made it ext3,
> boot is off of / and not its own fs so when i realized what i did I just
> changed fstab accordingly so it would mount as ext2, although that
> couldn't be the problem either since it is loading the debian kernels.

/ can be ext3. Palo doesn't care since ext2/ext3 are compatible.
What's important is /boot/vmlinux is < 2GB on disk.

grant


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On Mon, Feb 03, 2003 at 05:44:50PM +0200, Nahkola Mikko wrote:
> ... the 70096's scrollback was full of something that looks like
> a hex dump, and then a HPMC at the end.

Likely a problem with st or scsi driver.
Not many people are using tape drives so we don't get much
feedback on that.

> Is anyone interested in the hex dump?

Well, TBH, I'd be more interested in one from a 2.4.20 kernel.
Too much code has changed since 2.4.18.

> 
> The HPMC is as follows:
> 		Code=1 regs=102f3080 (Addr=00000000)
> 	
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001110 Not tainted
> r00-03  00000000 10300010 1010d4e8 ffffffff
...
> IASQ: 00000000 00000000 IAOQ: 1024a2d0 1024a2d4

Can you look up (IOAQ) 1024a2d0 and (GR02) 1010d4e8
in the matching System.map?
I'm curious where it died.
Though with HPMCs, it's likely to be a bug in some other code path.

thanks,
grant


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Hi,

I've got a B132L+ with which I am trying to have a 16 ou 24 bits (better
than the original 8-bits framebuffer mode) : I've inserted a S3Trio64V2/DX
based card but the B132L+ lock at boot.

I've inserted a NE-2000 PCI clone and it works perfectly so I think it do
not come from the PCI bus, but the video card itself.

So is there a way to put a PCI video card in a B132L+ and is there
somewhere a list of PCI cards that are know to work ?

-------
Bad Max
========
Amiga User
GNU User
WWW: perso.club-internet.fr/badmax



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Aaron,

Just A comment on your web page 'Comments':
warning concerning 'mathemu' code are well known annoying but armless.

I try to remove them but this broken to much original hp code :(

Now, the stupid question: do you try to boot from a serial console?

I also would like to know if you really have an ide cdrom on your J?

If yes, could you try to unplug it (pw supply and data flat cable) to reboot
with your new kernel?

hth,
    Joel



>-- Original Message --
>To: "Aaron St. Pierre" <asp@ungod.com>
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] kernel compile
>From: grundler@dsl2.external.hp.com (Grant Grundler)
>Date: Mon, 3 Feb 2003 09:53:21 -0700
>
>
>On Mon, Feb 03, 2003 at 01:43:28AM -0500, Aaron St. Pierre wrote:
>> Anyway I got the the TOC information for both processors after
>> I tried to boot my kernel. It is
>> all on that page ( http://hadron.dyndns.org/parisc/ ) 
>
>IIA Offset                   = 0x00000000f0080570
>
>that's not a kernel address. Looks like a PDC call died. :^(
>
>> I also added a link to the firmware. I am running 2.0 of the firmware
>> and according to hp the most recent is 2.1 or : 
>> 
>> Patch Name: /firmware_patches/hp/cpu/PF_CJ224021
>> Description: HP 9000 Model J2240 firmware 2.1 patch
>> Date       : 00/10/06
>
>hmm...I'd stick with 2.0 for now.
>
>> I will start popping stuff out of the kernel, although I am sure I took
>> out all of the stuff wrt graphics. Another try for persistance sake wont
>> hurt :) 
>
>You still have STI drivers enabled and CONFIG_FB enabled.
>I'd start with those and then remove others one-by-one.
>
>> As far as the palo message, i only started noticing it when I went to
>> v1.2 of palo. One thing I should note, when I set up / i made it ext3,
>> boot is off of / and not its own fs so when i realized what i did I just
>> changed fstab accordingly so it would mount as ext2, although that
>> couldn't be the problem either since it is loading the debian kernels.
>
>/ can be ext3. Palo doesn't care since ext2/ext3 are compatible.
>What's important is /boot/vmlinux is < 2GB on disk.
>
>grant
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


---------------------------------
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>>>>> "baddy" == baddy  <baddy@free.fr> writes:

baddy> I've got a B132L+ with which I am trying to have a 16 ou 24
baddy> bits (better than the original 8-bits framebuffer mode) : I've
baddy> inserted a S3Trio64V2/DX based card but the B132L+ lock at
baddy> boot.

Unfortunately it seems that HP has a check in the firmware that only
allows booting with HP-branded graphics cards.

I have tried several brands in both C160 and C3000, and both machines
refuse to boot with non-HP graphics cards installed.

OTOH, the firmware appears fairly relaxed about unknown
SCSI/network/whatever cards.  It's only graphics.  Sadly :/

-- 
Martin K. Petersen	Wild Open Source, Inc.
mkp@wildopensource.com	http://www.wildopensource.com/



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On 3 Feb 2003, Martin K. Petersen wrote:

> baddy> I've got a B132L+ with which I am trying to have a 16 ou 24
> baddy> bits (better than the original 8-bits framebuffer mode) : I've
> baddy> inserted a S3Trio64V2/DX based card but the B132L+ lock at
> baddy> boot.
>
> Unfortunately it seems that HP has a check in the firmware that only
> allows booting with HP-branded graphics cards.

Not entirely correct.

You can boot with any PCI-graphics card, but you won't see any output
until X is started (see below). However I haven't heard of anybody that had
success with PCI graphic cards other than the Visualize-EG (well, perhaps
the Voodoo2 with that special framebuffer driver, but I'm not sure)!


> I have tried several brands in both C160 and C3000, and both machines
> refuse to boot with non-HP graphics cards installed.

That's because you probably are using STIcon as default (and not console).
STIcon/STIfb only works with HP graphics cards. I assume by plugging in
the PS2 keyboard and mouse (which are needed to use X, of course) palo
automatically decides to use STIcon instead of serial console.


If you want to run a non-HP graphics card, lets say any ordinary PCI
graphics card taken out of a Intel-PC, then you have to use the serial
console (specify it in palo.conf, do not only use the default automatic
detection), so you won't see anything on the screen until X is started.
You also can't switch between virtual consoles. The reason for that is the
following:

You also can't use the normal Linux framebuffer drivers, since these
assume that the graphics card was initialized first by the BIOS/PDC/SRM
(for that reason the XFree86 server has a small Intel-Emulator built-in
to be able to initialize graphics cards on non-Intel platforms itself).

Well, the PDC doesn't initialize non-HP graphics cards - actually doesn't
support them at all - so you also can't use STI in combination with
non-HP cards. This means you won't see any kernel messages on the screen,
since for that either STIcon or a Linux framebuffer driver is needed.

Most of the 'generic' framebuffer drivers are just written, tested and
used on ix86 (or maybe Alpha) anyway, so the best bet to make a non-HP
graphics cards running on Linux/PA-RISC is XFree86.


greetings max



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Joel, 
	I figured so, but thought I should note it since well I am running
	out of answers ;) 

	Here is the setup right now: I have a laptop running minicom
	connected to the J2240 through the serial port. I can see the init
	codes and tests happening through the serial console, so to answer
	your question :) yes I do boot from a serial console... 

	As far as the cdrom, it is not ide, it is scsi, and it seems to work 
	fine /dev/cdrom --> sr0. I inserted a cdrom (just to test) and
	mounted iso9660 without problems. 

	I am going to remove ide stuff from the kernel after I test with
	what grant suggested. 

	Just for the sake of documentation I will add compile logs as script
	files for the next builds. They will be on that page as I complete
	them. 

	Fun day of pancake making ahead :)

	In another life Joel Soete wrote:

> Aaron,
> 
> Just A comment on your web page 'Comments':
> warning concerning 'mathemu' code are well known annoying but armless.
> 
> I try to remove them but this broken to much original hp code :(
> 
> Now, the stupid question: do you try to boot from a serial console?
> 
> I also would like to know if you really have an ide cdrom on your J?
> 
> If yes, could you try to unplug it (pw supply and data flat cable) to reboot
> with your new kernel?
> 
> hth,
>     Joel
> 
> 
> 
> >-- Original Message --
> >To: "Aaron St. Pierre" <asp@ungod.com>
> >Cc: parisc-linux@lists.parisc-linux.org
> >Subject: Re: [parisc-linux] kernel compile
> >From: grundler@dsl2.external.hp.com (Grant Grundler)
> >Date: Mon, 3 Feb 2003 09:53:21 -0700
> >
> >
> >On Mon, Feb 03, 2003 at 01:43:28AM -0500, Aaron St. Pierre wrote:
> >> Anyway I got the the TOC information for both processors after
> >> I tried to boot my kernel. It is
> >> all on that page ( http://hadron.dyndns.org/parisc/ ) 
> >
> >IIA Offset                   = 0x00000000f0080570
> >
> >that's not a kernel address. Looks like a PDC call died. :^(
> >
> >> I also added a link to the firmware. I am running 2.0 of the firmware
> >> and according to hp the most recent is 2.1 or : 
> >> 
> >> Patch Name: /firmware_patches/hp/cpu/PF_CJ224021
> >> Description: HP 9000 Model J2240 firmware 2.1 patch
> >> Date       : 00/10/06
> >
> >hmm...I'd stick with 2.0 for now.
> >
> >> I will start popping stuff out of the kernel, although I am sure I took
> >> out all of the stuff wrt graphics. Another try for persistance sake wont
> >> hurt :) 
> >
> >You still have STI drivers enabled and CONFIG_FB enabled.
> >I'd start with those and then remove others one-by-one.
> >
> >> As far as the palo message, i only started noticing it when I went to
> >> v1.2 of palo. One thing I should note, when I set up / i made it ext3,
> >> boot is off of / and not its own fs so when i realized what i did I just
> >> changed fstab accordingly so it would mount as ext2, although that
> >> couldn't be the problem either since it is loading the debian kernels.
> >
> >/ can be ext3. Palo doesn't care since ext2/ext3 are compatible.
> >What's important is /boot/vmlinux is < 2GB on disk.
> >
> >grant
> >_______________________________________________
> >parisc-linux mailing list
> >parisc-linux@lists.parisc-linux.org
> >http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
> ---------------------------------
> Vous surfez avec une ligne classique ?
> Faites des economies avec Tiscali Complete
> ... Plus d'info sur http://complete.tiscali.be
> 

-- 
Aaron St. Pierre			tel: 978.828.6177
asp@ungod.com

 667:
 	The neighbor of the beast.


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>>>>> "M" == M Grabert <xam@cs.ucc.ie> writes:

>> Unfortunately it seems that HP has a check in the firmware that
>> only allows booting with HP-branded graphics cards.

M> Not entirely correct.

It depends on your machine type and firmware version.  Older firmwares
are extremely picky.

In the first PCI-based PA-RISC machines there was a corruption bug in
Dino (the GSC-PCI bus adapter), and the firmware would disallow any
other PCI cards than HP graphics.  Newer Dinos fixed that problem and
PDC allowed 3rd party SCSI/network cards to pass.

However, when I plug in a non-HP graphics board in either C160 or
C3000, the firmware will halt the machine and ask me to pull out the
card before it will allow booting to commence.

This has nothing to do with whether Linux recognizes the card or not,
and which console driver you happen to be using.

-- 
Martin K. Petersen	Wild Open Source, Inc.
mkp@wildopensource.com	http://www.wildopensource.com/



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From: Bad Max <badmax@club-internet.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: B132L+ and PCI cards
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Hello

On 03-fv-03, you wrote:

[snip]
| > 
| > Not entirely correct.
| > 
| > You can boot with any PCI-graphics card, but you won't see any output
| > until X is started (see below). However I haven't heard of anybody that
| > had success with PCI graphic cards other than the Visualize-EG (well,
| > perhaps the Voodoo2 with that special framebuffer driver, but I'm not
| > sure)!
| > 

The question is not about Linux recognizing the new gfx card or not, the
question is that my S3-based-card lock my B132L+ at power up. So I can't
get Linux booting because the B132L+ don't finish the initialize process.

[snip]
-------
Bad Max
========
Amiga User
GNU User
WWW: perso.club-internet.fr/badmax



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Subject: Re: [parisc-linux] Re: B132L+ and PCI cards
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On Mon, 3 Feb 2003, Bad Max wrote:

> The question is not about Linux recognizing the new gfx card or not, the
> question is that my S3-based-card lock my B132L+ at power up. So I can't
> get Linux booting because the B132L+ don't finish the initialize process.


On Mon, 3 Feb 2003, Martin K. Petersen wrote:

> It depends on your machine type and firmware version.  Older firmwares
> are extremely picky.
>
> In the first PCI-based PA-RISC machines there was a corruption bug in
> Dino (the GSC-PCI bus adapter), and the firmware would disallow any
> other PCI cards than HP graphics.  Newer Dinos fixed that problem and
> PDC allowed 3rd party SCSI/network cards to pass.


Sorry for the misundestanding.
I was not aware that THIS is really a PDC/hardware related issue.

Max



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From: Aaron Macks <aaronm@cs.brandeis.edu.ml.to>
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Subject: [parisc-linux] FR issues on 735/125
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It took a while, but it's up and installed, no problems with net 
install.  Now the problem is as follows, I cannot reset the FB, so if 
something uses it(like the NCURSES installer) and I do a soft reset, 
the image persists, even if something is drawn over it.  Any thoughts?
Aaron
-- 
_______________________________________________________
Aaron Macks(aaronm@cs.brandeis.edu) [http://wiglaf.cs-i.brandeis.edu/~aaronm]
My sheep has seven gall bladders, that makes me the King of the Universe!


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Subject: [parisc-linux] second FB issue
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So in continuation of trying to get X workig on my new 735/125, I upgraded to the 2.4.20-pa23 kernel from p-l.o
and frame-buffers exist.  the problem is that X will not initialize
eror log is attached
is there some extra package needed for the FBdev device for X?
thanks again
aaron
-- 
Aaron Macks(aaronm@cs.brandeis.edu)
My sheep has seven gall bladders, that makes me the King of the Universe!

--zYM0uCDKw75PZbzx
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="XFree86.0.log"


This is a pre-release version of XFree86, and is not supported in any
way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
please check the latest version in the XFree86 CVS repository
(http://www.XFree86.Org/cvs)

XFree86 Version 4.1.0.1 / X Window System
(protocol Version 11, revision 0, vendor release 6510)
Release Date: 21 December 2001
	If the server is older than 6-12 months, or if your card is
	newer than the above date, look for a newer version before
	reporting problems.  (See http://www.XFree86.Org/FAQ)
Build Operating System: Linux 2.4.16-64 parisc64 [ELF] 
(==) Log file: "/var/log/XFree86.0.log", Time: Sun Feb  2 19:35:20 2003
(==) Using config file: "/etc/X11/XF86Config-4"
Markers: (--) probed, (**) from config file, (==) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) ServerLayout "Default Layout"
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "Generic Monitor"
(**) |   |-->Device "Generic Video Card"
(**) |-->Input Device "Keyboard"
(==) Keyboard: CustomKeycode disabled
(**) |-->Input Device "Mouse"
(WW) The directory "/usr/lib/X11/fonts/cyrillic" does not exist.
	Entry deleted from font path.
(**) FontPath set to "unix/:7100,/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts/100dpi/:unscaled,/usr/lib/X11/fonts/75dpi/:unscaled,/usr/lib/X11/fonts/Type1,/usr/lib/X11/fonts/Speedo,/usr/lib/X11/fonts/100dpi,/usr/lib/X11/fonts/75dpi"
(==) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(--) using VT number 7

(WW) Cannot open APM
(EE) No OS PCI support available
(II) Addressable bus resource ranges are
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
	[1] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) OS-reported resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) OS-reported resource ranges after removing overlaps with PCI:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) All system resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
	mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400
(II) GLINT: driver for 3Dlabs chipsets: gamma, ti_pm2, ti_pm, pm3, pm2v,
	pm2, pm, 300sx, 500tx, mx, delta
	S3VIdentify
(II) S3VIRGE: driver (version 1.6.13) for S3 ViRGE chipsets: virge, 86C325,
	virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
	86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
	trio 3d/2x, 86C362, 86C368
(II) SIS: driver for SiS chipsets: SIS5597, SIS5598, SIS530, SIS6326,
	SIS300, SIS630, SIS540
(II) SAVAGE: driver (version 1.1.16) for S3 Savage chipsets: Savage4,
	Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
	Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133, Twister,
	TwisterK
(II) TRIDENT: driver for Trident chipsets: tvga8900d, cyber9320, cyber9388,
	cyber9397, cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4,
	tgui9420dgi, tgui9440agi, tgui9660, tgui9680, providia9682,
	providia9685, cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d,
	cyberbladei7, cyberbladei7d, cyberbladei1, cyberbladei1d,
	cyberbladeAi1, cyberbladeAi1d, cyberbladeXP, cyberbladeXPm
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
	ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
	ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
	3dfx Voodoo3, 3dfx Voodoo5
(II) FBDev: driver for framebuffer: fbdev, afb
(II) ATI: ATI driver (version 6.3.6) for chipsets: ati
(II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
	ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
	ATI Rage 128 RL (AGP), ATI Rage 128 Pro PD (PCI),
	ATI Rage 128 Pro PF (AGP), ATI Rage 128 Pro PP (PCI),
	ATI Rage 128 Pro PR (PCI), ATI Rage 128 Mobility LE (PCI),
	ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
	ATI Rage 128 Mobility ML (AGP)
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
	ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
	ATI Radeon VE (AGP)
(II) imstt: driver (version 1.0.0 for IMS TwinTurbo chipsets : imstt128,
	imstt3d
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) v4l driver for Video4Linux
	S3VProbe begin
(II) FBDev(0): using default device
(II) Running in FRAMEBUFFER Mode
(==) FBDev(0): Depth 24, (==) framebuffer bpp 24
(==) FBDev(0): RGB weight 888
(==) FBDev(0): Default visual is TrueColor
(==) FBDev(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDev(0): Hardware:  (vidmem: 16384k)
(II) FBDev(0): Checking Modes against framebuffer device...
(II) FBDev(0): 	mode "1280x1024" ok
(II) FBDev(0): Checking Modes against monitor...
(--) FBDev(0): Virtual size is 1280x1024 (pitch 1280)
(**) FBDev(0): Default mode "1280x1024": 108.0 MHz (scaled from 0.0 MHz), 64.0 kHz, 60.0 Hz
(II) FBDev(0): Modeline "1280x1024"  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync
(==) FBDev(0): DPI set to (75, 75)
(**) FBDev(0): Using "Shadow Framebuffer"
(--) Depth 24 pixmap format is 24 bpp

Fatal server error:
AddScreen/ScreenInit failed for driver 0


When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to submit@bugs.debian.org.


--zYM0uCDKw75PZbzx--


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Okay.... 
	I cannot explain this AT ALL, but look at this : 

	Linux parisc 2.5.58-pa2 #1 Mon Feb 3 19:05:50 EST 2003 parisc
	unknown unknown GNU/Linux

	Yes 2.5 compiled and booted. It was a crap shoot. Now I have to
	figure out how to get modules to work. I had to take them out since
	I was getting a compile time error. This is just wierd. 

	Well I suppose I shouldn't complain, this was the FIRST kernel that
	I built that actually booted. After about thirty or fourty compiles I
	have to say my persistence has paid off ;)

	I am gonna muck with the module stuff, If it is important to anyone 
	I will maintain the page at http://hadron.dyndns.org/parisc/
	
	Thanks again for all of your help ! 

-- 
Aaron St. Pierre			tel: 978.828.6177
asp@ungod.com

 "I'm in Pittsburgh.  Why am I here?"
 		-- Harold Urey, Nobel Laureate


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On Mon, Feb 03, 2003 at 09:49:04PM -0500, Aaron St. Pierre wrote:
> 	Yes 2.5 compiled and booted. It was a crap shoot. Now I have to
> 	figure out how to get modules to work.

Modules are broken in 2.5.x and still not fixed with 2.5.59.
Someone volunteered already to fix it but it hasn't happened yet.
Not sure if access to HW or lack of time is the problem.

> 	Well I suppose I shouldn't complain, this was the FIRST kernel that
> 	I built that actually booted. After about thirty or fourty compiles I
> 	have to say my persistence has paid off ;)

wierd. I guess it has.

grant


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Subject: Re: [parisc-linux] Yet another tar-triggered problem?
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On Mon, Feb 03, 2003 at 10:30:57AM -0700, ext Grant Grundler wrote:
> On Mon, Feb 03, 2003 at 05:44:50PM +0200, Nahkola Mikko wrote:

> > ... the 70096's scrollback was full of something that looks like
> > a hex dump, and then a HPMC at the end.

> Likely a problem with st or scsi driver.
> Not many people are using tape drives so we don't get much
> feedback on that.

Well, duh ... tapes are fun. Wonder why no one seems interested in them 
nowadays.

> > Is anyone interested in the hex dump?

> Well, TBH, I'd be more interested in one from a 2.4.20 kernel.
> Too much code has changed since 2.4.18.

OK, I'll see if I can reproduce this on 2.4.20. 

It would be nice to get a newer kernel to work in real use too... funny 
that KDE should lock up though, that's not a symptom that I'd expect to 
see.

> > r00-03  00000000 10300010 1010d4e8 ffffffff
> ...
> > IASQ: 00000000 00000000 IAOQ: 1024a2d0 1024a2d4
> 
> Can you look up (IOAQ) 1024a2d0 and (GR02) 1010d4e8
> in the matching System.map?
> I'm curious where it died.

Well, 1010d4e8 seems to be in the middle of something...
1010d1c0 t pcxl_proc_info 	
1010d30c t .L1066
1010d36c T inb
............. lots of other "t .L???"s and an occasional "T inw"
1010d480 t .L708
1010d484 T inl
1010d4ec t .L712

1024a2d0 seems much more readable here... but then again the stuff is 
much further apart.

1024a2ac t dino_in32
1024a2e4 t dino_out8
1024a320 t dino_out16

> Though with HPMCs, it's likely to be a bug in some other code path.

Indeed, and on HP-UX I've seen occasional HPMCs with slightly-broken 
disks, for example... 


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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On Mon, Feb 03, 2003 at 10:37:35AM -0500, Aaron St. Pierre wrote:
> Yes, the boot partition is < 2GB. In fact here is the partion table as 
> reported from fdisk. 
> 
> Disk /dev/sda: 9100 MB, 9100044288 bytes
> 64 heads, 32 sectors/track, 8678 cylinders
> Units = cylinders of 2048 * 512 = 1048576 bytes
> 
>    Device Boot    Start       End    Blocks   Id  System
> /dev/sda1   *         1        29     29680   f0  Linux/PA-RISC boot
> /dev/sda2            30       267    243712   83  Linux

Your TOC dump indicated a likely death in firmware, which is consistent
with trying to load a kernel from beyond the 2G mark.  Indeed your
/dev/sda2 ends past the 2G mark, so you can expect that sometimes
it'll work and sometimes it won't.

	-P


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On Tue, Feb 04, 2003 at 09:57:54AM -0700, Paul Bame wrote:
> On Mon, Feb 03, 2003 at 10:37:35AM -0500, Aaron St. Pierre wrote:
> > Yes, the boot partition is < 2GB. In fact here is the partion table as 
> > reported from fdisk. 
> > 
> > Disk /dev/sda: 9100 MB, 9100044288 bytes
> > 64 heads, 32 sectors/track, 8678 cylinders
> > Units = cylinders of 2048 * 512 = 1048576 bytes
> > 
> >    Device Boot    Start       End    Blocks   Id  System
> > /dev/sda1   *         1        29     29680   f0  Linux/PA-RISC boot
> > /dev/sda2            30       267    243712   83  Linux
> 
> Your TOC dump indicated a likely death in firmware, which is consistent
> with trying to load a kernel from beyond the 2G mark.  Indeed your
> /dev/sda2 ends past the 2G mark, so you can expect that sometimes
> it'll work and sometimes it won't.

Paul,
Are you sure?

267*1048576 == 279969792 == 279,969,792

That's 280MB if I've placed the comas right.

grant


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On Tue, Feb 04, 2003 at 10:55:02AM +0200, Nahkola Mikko wrote:
> 1024a2d0 seems much more readable here... but then again the stuff is 
> much further apart.
> 
> 1024a2ac t dino_in32

yeah, dino_in32 just means we detected the existing error condition
when reading from IO space. Something else caused the bus error before.


> Indeed, and on HP-UX I've seen occasional HPMCs with slightly-broken 
> disks, for example... 

Like this problem with the tape though, that's most likely a driver bug.

grant


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Paul, 	
	My root filesystem is 250MB. 

	parisc:~# df -kh
	Filesystem            Size  Used Avail Use% Mounted on
	/dev/sda2             231M   52M  168M  24% /
	/dev/sda5             1.9G  212M  1.6G  12% /var
	/dev/sda6             2.8G 1009M  1.7G  38% /usr

	Don't know if you saw the thread, but for some reason 2.5.58 
	boots, there are problems after, which is expected with a 
	development kernel, but it boots nonetheless and that is hopeful :) 

	Is there perhaps some other way I should be organizing my swap and
	filesystems ? I followed the instructions from
	http://www.parisc-linux.org/software/install.html. 

	Thanks



In another life Paul Bame wrote:

> On Mon, Feb 03, 2003 at 10:37:35AM -0500, Aaron St. Pierre wrote:
> > Yes, the boot partition is < 2GB. In fact here is the partion table as 
> > reported from fdisk. 
> > 
> > Disk /dev/sda: 9100 MB, 9100044288 bytes
> > 64 heads, 32 sectors/track, 8678 cylinders
> > Units = cylinders of 2048 * 512 = 1048576 bytes
> > 
> >    Device Boot    Start       End    Blocks   Id  System
> > /dev/sda1   *         1        29     29680   f0  Linux/PA-RISC boot
> > /dev/sda2            30       267    243712   83  Linux
> 
> Your TOC dump indicated a likely death in firmware, which is consistent
> with trying to load a kernel from beyond the 2G mark.  Indeed your
> /dev/sda2 ends past the 2G mark, so you can expect that sometimes
> it'll work and sometimes it won't.
> 
> 	-P
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
Aaron St. Pierre			tel: 978.828.6177
asp@ungod.com

 <rcw> liiwi: printk("CPU0 on fire\n");


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Subject: [parisc-linux] nfs-root question
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Um, have any of you set up a nfs-root client with this hp-kernel?

My palo.conf has both root=/dev/nfs nfsroot=172.16.100.7:/share/hplinux

My dhcp server is serving all the info it needs, I even added a:
option root-path "/share/hplinux" to it.


My problem is that I keep getting a panic from not being able to mount
anything.

it keeps saying that root=
which I don't beleive it should...

the dir on the server is exported {I tested it by mounting it before
trying to boot with it}

The dhcpd.conf looks like:
-------------------------------------------------------------------------
option domain-name "eng.nateng.com";
option domain-name-servers 172.16.100.7;

option subnet-mask 255.255.255.0;
default-lease-time 259200;

subnet 172.16.100.0 netmask 255.255.255.0 {
	range	172.16.100.130		172.16.100.149;
	option	broadcast-address	172.16.100.255;
	option  routers                 172.16.100.191;
}

host	hptux	{
	hardware ethernet 08:00:09:8c:02:ae;
	fixed-address	hptux.eng.nateng.com;
	option root-path "/share/hplinux";
}

my palo.conf =
--commandline=2/ HOME=/ root=/dev/nfs nfsroot=172.16.100.7:/share/hplinux ip=both
--recoverykernel=/boot/vmlinux-2.4.17-32
--init-partitioned=/dev/sda

I've set up nfs-root/diskless clients before, but I am stuck on this...
Everything looks fine, except it looks like it is forgetting the root=
option.




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Um, being the moron I am, I set the servers and such up right...
I forgot to turn on the root=nfs option under file systems in the kernel
setup...


You may burn the last email at your convience....



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On Tue, Feb 04, 2003 at 10:55:02AM +0200, ext Nahkola Mikko wrote:
> On Mon, Feb 03, 2003 at 10:30:57AM -0700, ext Grant Grundler wrote:

> > > Is anyone interested in the hex dump?
> > Well, TBH, I'd be more interested in one from a 2.4.20 kernel.
> > Too much code has changed since 2.4.18.

> OK, I'll see if I can reproduce this on 2.4.20. 
> It would be nice to get a newer kernel to work in real use too... funny 
> that KDE should lock up though, that's not a symptom that I'd expect to 
> see.

Oh well. 2.4.20-pa23 looks quite good actually - no panic/HPMC yet, no 
matter what I do with the tape drive (but it still doesn't _work_ ... 
"/dev/st0: Input/output error" every time) and KDE works too. 

I'll see if it does that with another drive too.


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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Subject: [parisc-linux] ksoftirqd in 2.4.20-pa23
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Now that there seems to be another generally useful kernel out (as in, 
usable for running KDE and such without lockups), there seems to be an 
interesting thing there...

Why is ksoftirqd_CPU0 taking almost all the free CPU time? Sure, it's 
nice 19, but still... and I don't remember having that on 2.4.18 nor on 
the other .19 and .20 versions that I tried. And of course it's all 
system time.

This is a typical state:

 12:16:28 up 23:32,  3 users,  load average: 1.11, 1.24, 1.20
104 processes: 102 sleeping, 2 running, 0 zombie, 0 stopped
CPU states:   1.2% user,  96.7% system,   0.9% nice,   1.2% idle
Mem:    774288K total,   770800K used,     3488K free,    51464K buffers
Swap:  1500152K total,     1936K used,  1498216K free,   624904K cached

  PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
    3 root      20  19     0    0     0 RWN  87.5  0.0  1211m ksoftirqd_CPU0
16772 root      18  15  1196 1196   924 R N   9.4  0.1   0:02 top
 1006 mnahkola   9   0  9680 9380  8688 S     1.0  1.2  13:49 kdeinit
  153 daemon     9   0   652  652   532 S     0.1  0.0   1:38 portmap
16737 root       9   0  2236 2208  1896 S     0.1  0.2   0:00 sshd
    1 root       9   0   580  580   492 S     0.0  0.0   0:12 init
    2 root       9   0     0    0     0 SW    0.0  0.0   0:00 keventd
    4 root       9   0     0    0     0 SW    0.0  0.0   0:16 kswapd
    5 root       9   0     0    0     0 SW    0.0  0.0   0:00 bdflush
    6 root       9   0     0    0     0 SW    0.0  0.0   0:00 kupdated
    9 root       9   0     0    0     0 SW    0.0  0.0   0:00 scsi_eh_2
   10 root      -1 -20     0    0     0 SW<   0.0  0.0   0:00 mdrecoveryd
   11 root       9   0     0    0     0 SW    0.0  0.0   0:01 kjournald


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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parisc-linux.org/faq

On jeudi, f=E9v 6, 2003, at 11:21 Europe/Paris, Nahkola Mikko wrote:

> Now that there seems to be another generally useful kernel out (as in,
> usable for running KDE and such without lockups), there seems to be an
> interesting thing there...
>
> Why is ksoftirqd_CPU0 taking almost all the free CPU time? Sure, it's
> nice 19, but still... and I don't remember having that on 2.4.18 nor =
on
> the other .19 and .20 versions that I tried. And of course it's all
> system time.
>
> This is a typical state:
>
>  12:16:28 up 23:32,  3 users,  load average: 1.11, 1.24, 1.20
> 104 processes: 102 sleeping, 2 running, 0 zombie, 0 stopped
> CPU states:   1.2% user,  96.7% system,   0.9% nice,   1.2% idle
> Mem:    774288K total,   770800K used,     3488K free,    51464K=20
> buffers
> Swap:  1500152K total,     1936K used,  1498216K free,   624904K =
cached
>
>   PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
>     3 root      20  19     0    0     0 RWN  87.5  0.0  1211m=20
> ksoftirqd_CPU0
> 16772 root      18  15  1196 1196   924 R N   9.4  0.1   0:02 top
>  1006 mnahkola   9   0  9680 9380  8688 S     1.0  1.2  13:49 kdeinit
>   153 daemon     9   0   652  652   532 S     0.1  0.0   1:38 portmap
> 16737 root       9   0  2236 2208  1896 S     0.1  0.2   0:00 sshd
>     1 root       9   0   580  580   492 S     0.0  0.0   0:12 init
>     2 root       9   0     0    0     0 SW    0.0  0.0   0:00 keventd
>     4 root       9   0     0    0     0 SW    0.0  0.0   0:16 kswapd
>     5 root       9   0     0    0     0 SW    0.0  0.0   0:00 bdflush
>     6 root       9   0     0    0     0 SW    0.0  0.0   0:00 kupdated
>     9 root       9   0     0    0     0 SW    0.0  0.0   0:00 =
scsi_eh_2
>    10 root      -1 -20     0    0     0 SW<   0.0  0.0   0:00=20
> mdrecoveryd
>    11 root       9   0     0    0     0 SW    0.0  0.0   0:01 =
kjournald
>
>
> --=20
> Mikko Nahkola   <mikko.nahkola@nokia.com>
> Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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On Thu, Feb 06, 2003 at 12:31:58PM +0100, ext Thibaut VARENE wrote:
> parisc-linux.org/faq

Well, duh, too long since I updated my local copy of that, it seems.

OK - the box doesn't have the physical HIL port anyway... do I need newer 
tools or can I rebuild the kernel with the Debian packaged tools, and can 
I expect it to work without HIL support (on a C240)? Already pulled 
/cvs/linux-2.4.20-pa23.tar.gz ... 

> On jeudi, fv 6, 2003, at 11:21 Europe/Paris, Nahkola Mikko wrote:
> >Why is ksoftirqd_CPU0 taking almost all the free CPU time? Sure, it's
> >nice 19, but still... and I don't remember having that on 2.4.18 nor on


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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Subject: [parisc-linux] B132L: Success and thanks!
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Hi!

These days, I got a B132L, downloaded some ISO image from a near debian
mirror and booted the box (after reading the palo boot howto:-)

Well, installing a HPPA box seems to be nothing harder than installing
any other alpha/mips(el)/... . So: Thanks for all the nice work!

Another question remains for me: is it currently "safe" to dist-upgrade
woody -> sid? Or are there some servere breakages? I do use sid on quite
a number of boxes (with no problems), but there might be hppa specific
pitfalls...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet!
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To: Jan-Benedict Glaw <jbglaw@lug-owl.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:17640

I have a J2240 and was able to dist-upgrade to sid without a problem. I
am still battling with being able to boot a custom built kernel, but I
haven't noticed any problems when running the stock kernel and unstable
distribution. 

It has been suggested to keep a version of gcc-3.0 around (gcc-3.2 gets
installed w/ sid ) and perhaps use that to build your kernels. 
I am not sure is this is a requirement any longer. 

aaron 

In another life Jan-Benedict Glaw wrote:

> Hi!
> 
> These days, I got a B132L, downloaded some ISO image from a near debian
> mirror and booted the box (after reading the palo boot howto:-)
> 
> Well, installing a HPPA box seems to be nothing harder than installing
> any other alpha/mips(el)/... . So: Thanks for all the nice work!
> 
> Another question remains for me: is it currently "safe" to dist-upgrade
> woody -> sid? Or are there some servere breakages? I do use sid on quite
> a number of boxes (with no problems), but there might be hppa specific
> pitfalls...
> 
> MfG, JBG
> 
> -- 
>    Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
>    "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur
>     fuer einen Freien Staat voll Freier B?rger" | im Internet!
>    Shell Script APT-Proxy: http://lug-owl.de/~jbglaw/software/ap2/



-- 
Aaron St. Pierre			tel: 978.828.6177
asp@ungod.com

 If it's worth doing, it's worth doing for money.


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Subject: [parisc-linux] =?windows-1252?Q?smbfs_=0D=0A=09=0D=0A=09=5C=5Ckahuna=3A_Not?=
 =?windows-1252?Q?_enough_=27=5C=27_characters_in_service=0D=0A?=
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 =?windows-1252?Q?255=2E0=0D=0A=09Got_a_positive_name_query_res?=
 =?windows-1252?Q?ponse_from_192=2E168=2E0=2E57_=28_192=2E168=2E0?=
 =?windows-1252?Q?=2E57_192=2E168=2E0=2E62_=29=0D=0A=09Password=3A=0D?=
 =?windows-1252?Q?=0A=09session_setup_failed=3A_NT=5FSTATUS=5FLOGON?=
 =?windows-1252?Q?=5FFAILURE=0D=0A=09mirage-01=3A/mnt=23_smbclient_=5C?=
 =?windows-1252?Q?=5C=5C=5Ckahuna=5C=5C_-U_igor=0D=0A=09added_inter?=
 =?windows-1252?Q?face_ip=3D192=2E168=2E0=2E86_bcast=3D192=2E168=2E0=2E?=
 =?windows-1252?Q?255_nmask=3D255=2E2
Date: Thu, 06 Feb 2003 16:17:07 +0300
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Hi there,

Can somebody tell me why I cannot mount smbfs on kernel 2.4.17-32?

smbs package is installed, but smbfs not listed in /proc/filesystems

Thanks in advance,

Nikolay Semenov



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Subject: Re: [parisc-linux] smbfs  	 	\\kahuna: Not enough '\' characters in service 	mirage-01:/mnt# smbclient \\\\kahuna\\ 	added interface ip=192.168.0.86 bcast=192.168.0.255 nmask=255.255.255.0 	Got a positive name query response from 192.168.0.57 ( 192.168.0.57 192.168.0.62 ) 	Password: 	session setup failed: NT_STATUS_LOGON_FAILURE 	mirage-01:/mnt# smbclient \\\\kahuna\\ -U igor 	added interface ip=192.168.0.86 bcast=192.168.0.255 nmask=255.255.255.0 	Got a positive name query response from 192.168.0.57 ( 192.168.0.57 192.168.0.62 ) 	Password: 	Domain=[SVOS] OS=[Windows 5.0] Server=[Windows 2000 LAN Manager] 	tree connect failed: NT_STATUS_BAD_NETWORK_NAME 	mirage-01:/mnt# smbclient \\\\kahuna\\igor 	added interface ip=192.168.0.86 bcast=192.168.0.255 nmask=255.255.255.0 	Got a posit
 ive name query response from 192.168.0.57 ( 192.168.0.57 192.168.0.62 ) 	Password: 	Anonymous logi
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On jeudi, f=E9v 6, 2003, at 14:17 Europe/Paris, Nikolay Semenov wrote:
> Hi there,
>
> Can somebody tell me why I cannot mount smbfs on kernel 2.4.17-32?

With a little less output, everything seems clearer...
> 	ERROR: smbfs filesystem not supported by the kernel
>

(In other words, you have to rebuild your kernel to enable smbfs=20
support.)


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/




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Subject: [parisc-linux] Sorry for my posting subject!
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Hi,

I am sorry for my previous posting subject line!

Just copy from Putty window to the mozilla mailer subject line.


Nikolay Semenov



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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] B132L: Success and thanks!
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> It has been suggested to keep a version of gcc-3.0 around (gcc-3.2 gets
> installed w/ sid ) and perhaps use that to build your kernels. 
> I am not sure is this is a requirement any longer. 

There were two patches installed in the 3.2 branch last weekend to address
the kernel miscompilation.  They are in 3.2.2 released this week.  The main
problem was fixed in 3.3 and the main by a series of patches installed in
the later half of 2002.

Randolph Chung and Grant Grundler reduced the problems to simple testcases.
Eric Botcazou diagnosed both problems.  Eric and Franz Sirl determined the
patch set needed.  Randolph, Franz and myself helped with testing.

It was quite an intensive bit of work resolving this problem and getting
it into 3.2.2.  All those who participated deserve a vote of thanks.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Thu, Feb 06, 2003 at 10:37:07AM -0500, John David Anglin wrote:
> Randolph Chung and Grant Grundler reduced the problems to simple testcases.
> Eric Botcazou diagnosed both problems.  Eric and Franz Sirl determined the
> patch set needed.  Randolph, Franz and myself helped with testing.
> 
> It was quite an intensive bit of work resolving this problem and getting
> it into 3.2.2.  All those who participated deserve a vote of thanks.

I agree.  I was very impressed to see the amount of work Randolph & Grant
had done when I got back.  While I'm not particularly familiar with GCC
development, I understand the pain of trying to separate out relevant
patches from a few months of development work and backporting them.
Well done to all involved, particularly given the 2 days they had to
accomplish this feat.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hats off guys ! Get some sleep ! 


In another life John David Anglin wrote:

> > It has been suggested to keep a version of gcc-3.0 around (gcc-3.2 gets
> > installed w/ sid ) and perhaps use that to build your kernels. 
> > I am not sure is this is a requirement any longer. 
> 
> There were two patches installed in the 3.2 branch last weekend to address
> the kernel miscompilation.  They are in 3.2.2 released this week.  The main
> problem was fixed in 3.3 and the main by a series of patches installed in
> the later half of 2002.
> 
> Randolph Chung and Grant Grundler reduced the problems to simple testcases.
> Eric Botcazou diagnosed both problems.  Eric and Franz Sirl determined the
> patch set needed.  Randolph, Franz and myself helped with testing.
> 
> It was quite an intensive bit of work resolving this problem and getting
> it into 3.2.2.  All those who participated deserve a vote of thanks.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
Aaron St. Pierre			tel: 978.828.6177
asp@ungod.com

 Where you stand depends on where you sit.
 		-- Rufus Miles, HEW


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>
>On Thu, Feb 06, 2003 at 10:37:07AM -0500, John David Anglin wrote:
>> Randolph Chung and Grant Grundler reduced the problems to simple testcases.
>> Eric Botcazou diagnosed both problems.  Eric and Franz Sirl determined
>the
>> patch set needed.  Randolph, Franz and myself helped with testing.
>> 
>> It was quite an intensive bit of work resolving this problem and getting
>> it into 3.2.2.  All those who participated deserve a vote of thanks.
>
>I agree.  I was very impressed to see the amount of work Randolph & Grant
>had done when I got back.  While I'm not particularly familiar with GCC
>development, I understand the pain of trying to separate out relevant
>patches from a few months of development work and backporting them.
>Well done to all involved, particularly given the 2 days they had to
>accomplish this feat.
>

More over when I think that I track this problem for about a year and I am
not even able to locate it accurately to make this work easier earlier.

Once again, congratulation and thanks to all for this great job,
    Joel


---------------------------------
Vous surfez avec une ligne classique ?
Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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On Thu, Feb 06, 2003 at 02:20:53PM +0200, Nahkola Mikko wrote:
> OK - the box doesn't have the physical HIL port anyway... do I need newer 
> tools or can I rebuild the kernel with the Debian packaged tools,

yes

> and can I expect it to work without HIL support (on a C240)?

yes 

grant


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> > I think they definitely should be implied by configuring for hppa-linux.
> > I don't see any enthusiasm for allowing use of additional space registers
> > for special purposes.
> 
> Ok, I will do some testing with fast indirect and no space registers.

I have installed a GCC patch on 3.3 and trunk that changes the
hppa-unknown-linux-gnu target (no change to hppa64-unknown-linux-gnu) to
include MASK_NO_SPACE_REGISTERS in the target default.  The patch also
improves the code generated in a few situations where we unnecessarily
loaded the destination space register when doing an external branch.
As these were in rather uncommon situations, I doubt anyone will see
much difference in performance.  This really only affects PA 1.x as
PA 2.0 has the "bve" insn which sets the space register automatically.

It's not a good idea to make fast indirect the default.  Fast indirect
calls only work when a program has static linkage (i.e., the're not
compatible with shared libraries because the PIC register is not set
when you do a fast indirect call).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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$B!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~!~(B

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TEL03-3341-6598  FAX03-5379-7146
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Hallo PARISC Hackers !

Is there any new status on MUX or SCSI on E55 or similar ?


Further experiments with MUX:
----------------------------

Any write access to a MUX port > 0, then the machine
hangs up. I need the source code !!!!!!!
                      ===========

My new idea is, that the PDC activates port 0 via the unused
offset for giving commands. I cannot continue without HP-UX
source code or other code pieces.

Another point - a bug in the tty layer ?

If I write a string to the ttyB1 or read from it (cat < /dev/ttyB1)
then a byte 0xe0 is sent to the mux driver via mux_write ().
I could not detect, where it come from !! Any idea ?

With friendly regards
Christoph




-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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On Sat, 08 Feb 2003 02:03:59 +0100
"Christoph Plattner" <christoph.plattner@gmx.at> wrote:

> Hallo PARISC Hackers !
> 
> Is there any new status on MUX or SCSI on E55 or similar ?
Not yet concerning SCSI.
This is still on rbrad and my todo list, at (alas) a low priority level for both of us I think.
Don't worry, this hasn't been forgotten ;)


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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Hello parisc-linux users,

I want to install parisc-linux on my old 712 machine over here.but I 
have a question.

That workstation doesn't have a CDROM attached to it. Is it possible to 
install parisc-linux from -let's say- NFS of TFTP, and this from a Linux 
machine? (network install)

If so, how can I do that?

rgrds,

		Bart



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On Sat, 08 Feb 2003 12:43:29 +0100
"Schelstraete Bart" <bart@schelstraete.org> wrote:

> Hello parisc-linux users,
> 
> I want to install parisc-linux on my old 712 machine over here.but I 
> have a question.
> 
> That workstation doesn't have a CDROM attached to it. Is it possible to 
> install parisc-linux from -let's say- NFS of TFTP, and this from a Linux 
> machine? (network install)
> 
> If so, how can I do that?
> 
> rgrds,
> 
> 		Bart
> 

http://pateam.esiee.fr/doc.html


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

-- 
One of these days i'm gonna stop answering such questions, to preserve
the 'r', 't', 'f', and 'm' key prints of my keyboard :P


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On Saturday 08 February 2003 06:05 am, Thibaut VARENE wrote:
> -- 
> One of these days i'm gonna stop answering such questions, to preserve
> the 'r', 't', 'f', and 'm' key prints of my keyboard :P
_______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

Perhaps add it to the M-L signature? ^^^^^^

Mike


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Xref: news.gmane.org gmane.linux.ports.parisc:17656

Hello,

oh that's new for me. I thought, the SPIFI is partially on my list.
I do not know, who told me, but I think it was Grant Grundler.
Of course, I cannot do it allone, but a good "hacking team" ...

I started debugging (by printk) a hlaf year ago. I also started to
study the NetBsd sources. And I already wait for the NDA to have
a "source look" in HP-UX and access to other documents.

As I have the E55, and I want to use it, a also offer my help.
So this is the reason, why I wrote the PDC console driver to
primary boot those class of machines.

The status on SCSI was: every read access to any I/O port (sorry:
memory location) a 0xffffffff was returned - open bus ?

Christoph



Thibaut VARENE wrote:
> On Sat, 08 Feb 2003 02:03:59 +0100
> "Christoph Plattner" <christoph.plattner@gmx.at> wrote:
> 
> 
>>Hallo PARISC Hackers !
>>
>>Is there any new status on MUX or SCSI on E55 or similar ?
> 
> Not yet concerning SCSI.
> This is still on rbrad and my todo list, at (alas) a low priority level for both of us I think.
> Don't worry, this hasn't been forgotten ;)
> 
> 
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://pateam.esiee.fr/
> 
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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Subject: [parisc-linux] [gcc-3.2.2] hppa64-unknown-linux-gnu fails to bootstrap
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>Submitter-Id:	net
>Originator:	Randolph Chung
>Organization:	Debian
>Confidential:	no
>Synopsis:	[gcc-3.2.2] hppa64-unknown-linux-gnu fails to bootstrap
>Severity:	critical
>Priority:	medium
>Category:	bootstrap
>Class:		sw-bug
>Release:	3.2.2 20030131 (Debian prerelease) (Debian testing/unstable)
>Environment:
System: Linux ios 2.4.20-pa23 #19 SMP Fri Feb 7 22:00:18 PST 2003 parisc64 unknown unknown GNU/Linux
Architecture: parisc64

	<machine, os, target, libraries (multiple lines)>
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,pascal,objc,ada --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.2 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-clocale=gnu --enable-objc-gc hppa-linux
>Description:
Building gcc-3.2.2 with:

~/src/gcc-3.2-3.2.2ds8/src/configure --with-gnu-as --with-gnu-ld --disable-shared --disable-nls --disable-threads --prefix=/usr  --host=hppa-linux --target=hppa64-linux --enable-languages=c

and then 'make' 

gives:

/home/tausq/build/gcc-3.2/gcc/xgcc -B/home/tausq/build/gcc-3.2/gcc/ -B/usr/hppa64-linux/bin/ -B/usr/hppa64-linux/lib/ -isystem /usr/hppa64-linux/include -O2  -DIN_GCC -DCROSS_COMPILE   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include  -fPIC -Dpa64=1 -DELF=1 -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I/home/tausq/src/gcc-3.2-3.2.2ds8/src/gcc -I/home/tausq/src/gcc-3.2-3.2.2ds8/src/gcc/. -I/home/tausq/src/gcc-3.2-3.2.2ds8/src/gcc/config -I/home/tausq/src/gcc-3.2-3.2.2ds8/src/gcc/../include -fexceptions -c /home/tausq/src/gcc-3.2-3.2.2ds8/src/gcc/unwind-sjlj.c -o libgcc/./unwind-sjlj.o
/home/tausq/src/gcc-3.2-3.2.2ds8/src/gcc/unwind-sjlj.c:56: size of array `data'
is too large
/home/tausq/src/gcc-3.2-3.2.2ds8/src/gcc/unwind-sjlj.c:72: confused by earlier errors, bailing out
make[2]: *** [libgcc/./unwind-sjlj.o] Error 1

The offending line is:
     56   _Unwind_Word data[4];
     
There are also a lot of warnings of the form:
/home/tausq/src/gcc-3.2-3.2.2ds8/src/gcc/unwind-dw2-fde.c:822: warning: integer overflow in expression
    807           _Unwind_Ptr mask;
    [...]
    822             mask = -1;

jda says he sees this with gcc-3.2.3 too.

>How-To-Repeat:
	see above
>Fix:
	


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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux grundler
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On Sat, Feb 08, 2003 at 03:27:46PM -0700, Grant Grundler wrote:
> > Kudos to John David Anglin and Carlos O'Donnell for realizing
> > PA 2.0 is not strongly ordered like PA1.x is.
> > Read appendix G or PA-RISC 2.0 Architecture (Gerry Kane) for
> > details on "Memory Ordering Model".

I'm confused.  This directly contradicts the comments in
include/asm-parisc/system.h.  If this needs updating, so does that.

> > I've uploaded palinux-20030208.tgz to dsl2 and will try to build
> > a binutils.deb with this change as well.

Is all that's needed to take the latest binutils from debian unstable
and rebuild it on woody?

> +++ arch/parisc/Makefile	8 Feb 2003 06:21:32 -0000
> @@ -32,6 +32,10 @@ CROSS_COMPILE := hppa-linux-
> +ifdef CONFIG_PA20
> +CFLAGS += -mpa-risc-2-0
> +endif

I've reverted this one.  We already have:

ifdef CONFIG_PA8X00
CFLAGS += -march=2.0 -mschedule=8000
endif

which covers the same cases.

> +++ include/asm-parisc/spinlock_t.h	8 Feb 2003 06:21:34 -0000
> +> I've attached a summary of the change, but basically, for PA 2.0, as
> +> long as the ",CO" (coherent operation) completer is specified, then the
> +> 16-byte alignment requirement for ldcw and ldcd is relaxed, and instead
> +> they only require "natural" alignment (4-byte for ldcw, 8-byte for
> +> ldcd).

That's interesting from an architecture PoV.  From my recollection when jsm
was debugging problems on the 710, PCX-S is the only processor which actually
enforces the 16-byte alignment restriction on ldcw.  So _practically_, we
don't need it unless we're supporting those old processors.

> +#ifdef CONFIG_PA20
> +/* PA2.0 is not strongly ordered. ldcw enforces ordering
> + * and we need to make sure ordering is enforced on the unlock too.
> + */
> +#define spin_unlock(x) \
> +		__asm__ __volatile__ ("stw,o  %%sp,0(%0)" : : "r" (x) : "memory" )
> +#else
> +
> +/* PA1.1 is strongly ordered. No issues here. */
>  #define spin_unlock(x)		do { (x)->lock = 1; } while(0)
> +
> +#endif

Actually... this may be a long-standing bug in our spinlocks.  There's nothing
to prevent gcc reordering writes around this assignment.  We need a barrier()
before the assignment, or maybe it'd be as well to do the assignment in an
asm() statement.

>  #define spin_unlock_wait(x)     do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)

i wonder if this one was working around some obscure compiler bug a
while back.  I don't see why we need to cast to a volatile spinlock_t *
given that lock is already defined as volatile.

One final point.... up till now, we've been telling people it's OK to
run kernels configured for PA1.1 on PA2.0 processors.  This patch says
to me that's not safe.  Do we need our distros (yeah, I hear there'll
soon be more than Debian supporting PA) to ship 5 flavours of kernel
(PA1.1 UP & SMP, PA2.0 32-bit SMP, 64-bit UP and 64-bit SMP) rather than
the current four?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux grundler
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> That's interesting from an architecture PoV.  From my recollection when jsm
> was debugging problems on the 710, PCX-S is the only processor which actually
> enforces the 16-byte alignment restriction on ldcw.  So _practically_, we
> don't need it unless we're supporting those old processors.

I am pretty sure that any PA 1.x machine needs the alignment.

> > +#ifdef CONFIG_PA20
> > +/* PA2.0 is not strongly ordered. ldcw enforces ordering
> > + * and we need to make sure ordering is enforced on the unlock too.
> > + */
> > +#define spin_unlock(x) \
> > +		__asm__ __volatile__ ("stw,o  %%sp,0(%0)" : : "r" (x) : "memory" )

If you change the above to

  __asm__ __volatile__ ("stw,ma  %%sp,0(%0)" : : "r" (x) : "memory")

it should work on both PA11 and PA20.  The ordered completer is only
PA 2.

> Actually... this may be a long-standing bug in our spinlocks.  There's nothing
> to prevent gcc reordering writes around this assignment.  We need a barrier()
> before the assignment, or maybe it'd be as well to do the assignment in an
> asm() statement.
> 
> >  #define spin_unlock_wait(x)     do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)

I think the volatile provides the barrier in my suggested version.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> I think the volatile provides the barrier in my suggested version.

volatile would prevent reordering accesses to a particular spinlock, 
but does it ensure that code that happens after the spinlock will not
be reordered to happen before the spin-unlock?

for example, if we had:

volatile spinlock l1, l2;

lock(l1)
do something
unlock(l1)

lock(l2)
do something else
unlock(l2)

will gcc ever move the lock(l2) before the unlock(l1)? 

(for reference, see this thread:
http://lists.debian.org/debian-gcc/2002/debian-gcc-200210/msg00058.html)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> lock(l1)
> do something
> unlock(l1)
> 
> lock(l2)
> do something else
> unlock(l2)
> 
> will gcc ever move the lock(l2) before the unlock(l1)? 

well, bad example, since l1 and l2 are both volatile, but in general,
nothing will prevent part of "do something else" to happen inside the l1
lock, right?

randolph


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On Sat, Feb 08, 2003 at 04:56:08PM -0800, Randolph Chung wrote:
> > lock(l1)
> > do something
> > unlock(l1)
> > 
> > lock(l2)
> > do something else
> > unlock(l2)
> > 
> > will gcc ever move the lock(l2) before the unlock(l1)? 
> 
> well, bad example, since l1 and l2 are both volatile, but in general,
> nothing will prevent part of "do something else" to happen inside the l1
> lock, right?

I think it's even worse than that.  What stops gcc reordering:

typedef struct {
        spinlock_t lock;
        volatile int counter;
} rwlock_t;

static  __inline__ void _raw_read_lock(rwlock_t *rw)
{
        while (__ldcw (&(x)->lock) == 0) \
                while (((x)->lock) == 0) ; } while (0)
        rw->counter++;
        do { (x)->lock = 1; } while(0)
}

to:

        while (__ldcw (&(x)->lock) == 0) \
                while (((x)->lock) == 0) ; } while (0)
        do { (x)->lock = 1; } while(0)
        rw->counter++;

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> > lock(l1)
> > do something
> > unlock(l1)
> > 
> > lock(l2)
> > do something else
> > unlock(l2)
> > 
> > will gcc ever move the lock(l2) before the unlock(l1)? 
> 
> well, bad example, since l1 and l2 are both volatile, but in general,
> nothing will prevent part of "do something else" to happen inside the l1
> lock, right?

Volatile would stop gcc from moving code across either the lock or the unlock.
A blockage is in fact implemented as an UNSPEC_VOLATILE instruction.
The PA 8000 has a large reorder buffer, so there are similar issues.
It's guaranteed that instructions will appear to execute in order on a
processor but the memory updates as viewed from another processor may
occur out of order.  To ensure that other processors have a consistent
view of whats happening, one must use ordered instructions for the lock
and unlock operations.  This will force all stores and loads inside the
lock to complete.  Further, if cache flush operations occur inside
a lock, you must also do a "sync" before unlocking to ensure that these
operations complete.  The ldcw insn is strongly ordered.  A load and
store on PA 2.0 can be made ordered with the correct completer.  Cache
flush operations are weakly ordered.  On PA 1.x, all load and store
instructions are strongly ordered, so ordering isn't an issue.

The current spinlock reset is done in high-level C.  So, gcc can move code
that that isn't dependent across the reset.  PA 2.0 processors can also do
the same.

Appendix G describes ordering in much more detail.  Hopefully, I haven't
butchered what's said there too badly.

The reordering that GCC does is conditional on instruction dependencies.  I
just reworked the handling of the PIC register restore in PIC code
because all the PIC register were not apparent in the initial scheduling
pass.  This is in 3.3 and main, but not 3.2.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> I think it's even worse than that.  What stops gcc reordering:
> 
> typedef struct {
>         spinlock_t lock;
>         volatile int counter;
> } rwlock_t;
> 
> static  __inline__ void _raw_read_lock(rwlock_t *rw)
> {
>         while (__ldcw (&(x)->lock) == 0) \
>                 while (((x)->lock) == 0) ; } while (0)
>         rw->counter++;
>         do { (x)->lock = 1; } while(0)
> }
> 
> to:
> 
>         while (__ldcw (&(x)->lock) == 0) \
>                 while (((x)->lock) == 0) ; } while (0)
>         do { (x)->lock = 1; } while(0)
>         rw->counter++;

Nothing.  The reset needs to be a volatile asm.  This will stop GCC from
doing the above.  On PA 2.0, the processor can do similar reordering.  So,
the reset needs to be an ordered store.  Well, I think the scheduling
model tends to try to do things as early as possible, consistent with
not over feeding the pipeline.  However, I wouldn't rely on this to
get the instrunction order that you want.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Sat, Feb 08, 2003 at 11:23:03PM +0000, Matthew Wilcox wrote:
> Is all that's needed to take the latest binutils from debian unstable
> and rebuild it on woody?

Almost. It needs a patch too:
	ftp://ftp.parisc-linux.org/patches/900_order_hppa.diff

Just drop that in debian/patches before building the debs.
That patch applies clean to the binutils for unstable.
I don't even pretend to understand how to properly build
debian packages, much less binutils or "cross release" builds.
That's why I made the tarball for "testing".

> That's interesting from an architecture PoV.  From my recollection when jsm
> was debugging problems on the 710, PCX-S is the only processor which actually
> enforces the 16-byte alignment restriction on ldcw.  So _practically_, we
> don't need it unless we're supporting those old processors.

I don't care to find out the hard way.
I'd rather just comply with the architecture and not worry about it.
If someone can demonstrate a perf advantage or issue, I'll be
more receptive.

> Actually... this may be a long-standing bug in our spinlocks.  There's nothing
> to prevent gcc reordering writes around this assignment.  We need a barrier()
> before the assignment, or maybe it'd be as well to do the assignment in an
> asm() statement.

I've read the followups to this and I gather our spinlocks are very broken.
If someone tells me what the right fix is, I'll test on PA20 32/64 bit
and commit.

> One final point.... up till now, we've been telling people it's OK to
> run kernels configured for PA1.1 on PA2.0 processors.  This patch says
> to me that's not safe.

Only for SMP. I think for UP the rule still holds.

> Do we need our distros (yeah, I hear there'll
> soon be more than Debian supporting PA) to ship 5 flavours of kernel
> (PA1.1 UP & SMP, PA2.0 32-bit SMP, 64-bit UP and 64-bit SMP) rather than
> the current four?

Unfortunately yes.

OTOH, PA20 SMP still hasn't proven stable so maybe it's not worth
doing at the moment either.  Once PA20 SMP is stable, we could drop
the 64-bit UP kernels since most systems that *require* 64-bit are SMP.

thanks,
grant


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On Sat, Feb 08, 2003 at 07:35:18PM -0500, John David Anglin wrote:
> > +#define spin_unlock(x) \
> > +		__asm__ __volatile__ ("stw,o  %%sp,0(%0)" : : "r" (x) : "memory" )
> 
> If you change the above to
> 
>   __asm__ __volatile__ ("stw,ma  %%sp,0(%0)" : : "r" (x) : "memory")
> 
> it should work on both PA11 and PA20.  The ordered completer is only
> PA 2.

Excellent idea.

In case it's not obvious to others, "stw,o" is an alias
for "stw,ma" with a Zero index value. But PA11 assembler
will grok the stw,ma properly.

I'll look at getting this into the kernel this week if someone
else doesn't beat me to it.  I'd like to test what I've got a bit
more now and get the binutils .deb availability issue resolved.

thanks,
grant


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> > If you change the above to
> > 
> >   __asm__ __volatile__ ("stw,ma  %%sp,0(%0)" : : "r" (x) : "memory")
> > 
> > it should work on both PA11 and PA20.  The ordered completer is only
> > PA 2.
> 
> Excellent idea.

The reason I am so up on this is that in testing gcc 3.4 on hppa1.1 this
weekend I found a problem with the locking code in atomicity.h.  This
was the 16-byte alignment issue.  In reviewing the assembly code being
generated, I revisited how the lock reset was done and came up with the
above.

This is also relevant to locking in glibc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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I just uploaded a gcc-3.2.3 (cvs) based hppa->hppa64 cross compiler to 
ftp://ftp.parisc-linux.org/unofficial-debs/gcc-hppa64_3.2.3-0.1_hppa.deb

Unfortunately gcc-3.2.3 is not able to build itself, so this is actually
built via gcc-3.3 :-)

This package also contains a recent binutils including Grant/Dave's
ordered store patch.

As a test, I've built and am running:

Linux version 2.4.20-pa24 (tausq@ios) (gcc version 3.2.3 20030208 (prerelease)) #27 SMP Sat Feb 8 21:48:37 PST 2003

on an A500.

As a reminder: 64-bit compilers are only meant for building kernels, we
do not yet have 64-bit userspace support.

Enjoy :)
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> o moved disable_sr_hash() from SMP to common code path so all
> CPU's (including monarch) have this disabled.

Huh? You didn't seriously think the monarch still had sr hashing enabled
did you? Believe me, shared memory wouldn't work at all if that was the
case.

This change is wrong. init_per_cpu() is called too early for the monarch.
disable_sr_hashing relies on the boot cpu data to be initialized to
determine which code should be used to disable the sr hashing.  It might
work for PA2.0, since it is the default case, but you probably broke all
of the other processors.

disable_sr_hashing() is called for the monarch in mm/init.c in
setup_bootmem().

John Marvin
jsm@fc.hp.com


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On Sat, Feb 08, 2003 at 11:23:03PM +0000, Matthew Wilcox wrote:
> Is all that's needed to take the latest binutils from debian unstable
> and rebuild it on woody?

I've rebuilt "unstable" binutils + ldwa,o patch on "testing" and dropped
them on
	ftp://ftp.parisc-linux.org/unofficial-debs/

-rw-r--r--    1 grundler ftpadmin   478700 Feb  8 23:51 binutils-dev_2.13.90.0.16-1_hppa.deb
-rw-r--r--    1 grundler ftpadmin  3311272 Feb  8 23:53 binutils-multiarch_2.13.90.0.16-1_hppa.deb
-rw-r--r--    1 grundler ftpadmin  2307548 Feb  8 23:54 binutils_2.13.90.0.16-1_hppa.deb

They install fine on my c3k though TBH, I haven't tried to use them.
(I did use the tarballs before posting earlier).
If someone wants to repeat that exercise for woody, that would be
fine with me.

/me checks off an item from his TODO list

Apperently, we still have problems with timers or timer code on PA20 SMP.
Still haven't been able to isolate this to any peice of code. :^(

g'night,
grant


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On Sun, Feb 09, 2003 at 12:40:14AM -0700, John Marvin wrote:
> > o moved disable_sr_hash() from SMP to common code path so all
> > CPU's (including monarch) have this disabled.
> 
> Huh? You didn't seriously think the monarch still had sr hashing enabled
> did you?

sorry - I did.
I could not find where it was getting cleared for the monarch.

> Believe me, shared memory wouldn't work at all if that was the case.

ok.

> This change is wrong. init_per_cpu() is called too early for the monarch.

yup - it's before collect_boot_cpu_data(). :^(

> disable_sr_hashing() is called for the monarch in mm/init.c in
> setup_bootmem().

ugh. my bad.
I was only looking in arch/parisc/kernel/ since that's where it's defined
and was being used in the SMP case.

Can I move the disable_sr_hashing() call from setup_bootmem() to
before/after cache_init() in setup_arch()?

Please feel free to correct if you have time to muck with it.
If my damage is not backed out in the morning, I'll back it out then.

thanks for pointing out this stupidity,
grant


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> Can I move the disable_sr_hashing() call from setup_bootmem() to
> before/after cache_init() in setup_arch()?

Sure. As long as you call it before paging_init() you will be OK.

> Please feel free to correct if you have time to muck with it.
> If my damage is not backed out in the morning, I'll back it out then.

I don't have a current tree and I need to go to bed.

John


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On Sun, Feb 09, 2003 at 01:11:21AM -0700, Grant Grundler wrote:
> I've rebuilt "unstable" binutils + ldwa,o patch on "testing" and dropped
> them on
> 	ftp://ftp.parisc-linux.org/unofficial-debs/
> 
> -rw-r--r--    1 grundler ftpadmin   478700 Feb  8 23:51 binutils-dev_2.13.90.0.16-1_hppa.deb
> -rw-r--r--    1 grundler ftpadmin  3311272 Feb  8 23:53 binutils-multiarch_2.13.90.0.16-1_hppa.deb
> -rw-r--r--    1 grundler ftpadmin  2307548 Feb  8 23:54 binutils_2.13.90.0.16-1_hppa.deb

I've removed these.  Few problems:

 - Same version number as the unstable package, so an upgrade wouldn't
   replace them
 - Not listed in the Packages file.
 - debian/changelog not updated

I'm doing a fresh build now.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sat, Feb 08, 2003 at 08:10:14PM -0700, Grant Grundler wrote:
> Just drop that in debian/patches before building the debs.
> That patch applies clean to the binutils for unstable.
> I don't even pretend to understand how to properly build
> debian packages, much less binutils or "cross release" builds.
> That's why I made the tarball for "testing".

OK.  It's not really hard, but I don't mind doing it.  It's not like
this is a regular occurrence.  It's building now; when I've finished
I'll upload it to unofficial-debs and people will be able to apt-get
install it from there.

> I don't care to find out the hard way.
> I'd rather just comply with the architecture and not worry about it.
> If someone can demonstrate a perf advantage or issue, I'll be
> more receptive.

Sure.  When someone's trying to implement futexes, this may prove critical..

> > One final point.... up till now, we've been telling people it's OK to
> > run kernels configured for PA1.1 on PA2.0 processors.  This patch says
> > to me that's not safe.
> 
> Only for SMP. I think for UP the rule still holds.

Agree.  That was implicit in the kernel list i gave later, but I should've
stated it explicitly.

> Unfortunately yes.
> 
> OTOH, PA20 SMP still hasn't proven stable so maybe it's not worth
> doing at the moment either.  Once PA20 SMP is stable, we could drop
> the 64-bit UP kernels since most systems that *require* 64-bit are SMP.

Sure, but there's a measurable performance difference if you compile out
spinlocks

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sun, Feb 09, 2003 at 12:29:13PM +0000, Matthew Wilcox wrote:
> OK.  It's not really hard, but I don't mind doing it.  It's not like
> this is a regular occurrence.  It's building now; when I've finished
> I'll upload it to unofficial-debs and people will be able to apt-get
> install it from there.

done.  http://ftp.parisc-linux.org/unofficial-debs/README
untested as i don't have root on any machine that's convenient.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sat, 2003-02-08 at 20:03, Matthew Wilcox wrote:
> I think it's even worse than that.  What stops gcc reordering:
> 
> typedef struct {
>         spinlock_t lock;
>         volatile int counter;
> } rwlock_t;
> 
> static  __inline__ void _raw_read_lock(rwlock_t *rw)
> {
>         while (__ldcw (&(x)->lock) == 0) \
>                 while (((x)->lock) == 0) ; } while (0)
>         rw->counter++;
>         do { (x)->lock = 1; } while(0)
> }
> 
> to:
> 
>         while (__ldcw (&(x)->lock) == 0) \
>                 while (((x)->lock) == 0) ; } while (0)
>         do { (x)->lock = 1; } while(0)
>         rw->counter++;

Compilers themselves have fairly strong reordering rules.  For instance,
do { } while() blocks cannot be reordered like your example (that's why
the kernel uses do { } while(0); as a compiler reordering barrier.

You can if you prefer use the barrier() macro, which prevents the
compiler from reordering statements around it.

Of course, the processor can still reorder what the compiler doesn't as
part of its speculation and optimisation (that's what mb(), rmb() and
wmb() are all about).

James




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I've also taken the opportunity to do a little misc cleanup.
Just checking it compiles, then I'll commit.

Index: arch/parisc/kernel/processor.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/processor.c,v
retrieving revision 1.16
diff -u -p -r1.16 processor.c
--- arch/parisc/kernel/processor.c	8 Feb 2003 22:22:42 -0000	1.16
+++ arch/parisc/kernel/processor.c	9 Feb 2003 13:30:50 -0000
@@ -273,7 +273,6 @@ int __init init_per_cpu(int cpunum)
 {
 	int ret;
 	struct pdc_coproc_cfg coproc_cfg;
-	extern void disable_sr_hashing(void);	/* from cache.c */
 
 	ret = pdc_coproc_cfg(&coproc_cfg);
 
@@ -310,8 +309,6 @@ int __init init_per_cpu(int cpunum)
 
 	/* FUTURE: Enable Performance Monitor : ccr bit 0x20 */
 	init_percpu_prof(cpunum);
-
-        disable_sr_hashing();
 
 	return ret;
 }
Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/cache.c,v
retrieving revision 1.23
diff -u -p -r1.23 cache.c
--- arch/parisc/kernel/cache.c	8 Feb 2003 22:22:42 -0000	1.23
+++ arch/parisc/kernel/cache.c	9 Feb 2003 13:30:50 -0000
@@ -194,33 +194,30 @@ cache_init(void)
 
 void disable_sr_hashing(void)
 {
-    int srhash_type;
+	int srhash_type;
 
-    if (boot_cpu_data.cpu_type == pcxl2)
-	return; /* pcxl2 doesn't support space register hashing */
+	switch (boot_cpu_data.cpu_type) {
+	case pcx: /* We shouldn't get this far.  setup.c should prevent it. */
+		BUG();
+		return;
+
+	case pcxs:
+	case pcxt:
+	case pcxt_:
+		srhash_type = SRHASH_PCXST;
+		break;
+
+	case pcxl:
+		srhash_type = SRHASH_PCXL;
+		break;
+
+	case pcxl2: /* pcxl2 doesn't support space register hashing */
+		return;
+
+	default: /* Currently all PA2.0 machines use the same ins. sequence */
+		srhash_type = SRHASH_PA20;
+		break;
+	}
 
-    switch (boot_cpu_data.cpu_type) {
-
-    case pcx:
-	BUG(); /* We shouldn't get here. code in setup.c should prevent it */
-	return;
-
-    case pcxs:
-    case pcxt:
-    case pcxt_:
-	srhash_type = SRHASH_PCXST;
-	break;
-
-    case pcxl:
-	srhash_type = SRHASH_PCXL;
-	break;
-
-    default: /* Currently all PA2.0 machines use the same ins. sequence */
-	srhash_type = SRHASH_PA20;
-	break;
-    }
-
-    disable_sr_hashing_asm(srhash_type);
-
-    mb();
+	disable_sr_hashing_asm(srhash_type);
 }
Index: arch/parisc/kernel/smp.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/smp.c,v
retrieving revision 1.21
diff -u -p -r1.21 smp.c
--- arch/parisc/kernel/smp.c	8 Feb 2003 22:22:42 -0000	1.21
+++ arch/parisc/kernel/smp.c	9 Feb 2003 13:30:50 -0000
@@ -33,6 +33,7 @@
 #include <linux/kernel_stat.h>
 #include <linux/mm.h>
 #include <linux/delay.h>
+#include <linux/reboot.h>
 
 #include <asm/system.h>
 #include <asm/atomic.h>
@@ -434,21 +435,21 @@ smp_cpu_init(int cpunum)
 	extern void init_IRQ(void);    /* arch/parisc/kernel/irq.c */
 
 	/* Set modes and Enable floating point coprocessor */
-	(void) init_per_cpu(cpunum);
+	init_per_cpu(cpunum);
 
-	/* Well, support 2.4 linux scheme as well. */
-	if (test_and_set_bit(cpunum, (unsigned long *) (&cpu_online_map)))
-	{
-		extern void machine_halt(void); /* arch/parisc.../process.c */
+	disable_sr_hashing();
+	mb();
 
+	/* Well, support 2.4 linux scheme as well. */
+	if (test_and_set_bit(cpunum, (unsigned long *) (&cpu_online_map))) {
 		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
 		machine_halt();
-	}  
+	}
 
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);
 	current->active_mm = &init_mm;
-	if(current->mm)
+	if (current->mm)
 		BUG();
 	enter_lazy_tlb(&init_mm, current, cpunum);
 



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On Sun, Feb 09, 2003 at 12:29:13PM +0000, Matthew Wilcox wrote:
> I'll upload it to unofficial-debs and people will be able to apt-get
> install it from there.

cool - thanks.

> Sure, but there's a measurable performance difference if you compile out
> spinlocks

if people care about the last 5% performance, they still have several
options:
o build your own kernel
o run HPUX

I've not done or seen any lmbench perf results recently but before hpux
was 10x faster on context switch/task related stuff.  And X11 server
takes advantage of HW acceleration.
(I'm associating UP systems with graphics which isn't always true)

grant


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In another life Grant Grundler wrote:

> On Sun, Feb 09, 2003 at 12:29:13PM +0000, Matthew Wilcox wrote:
> > I'll upload it to unofficial-debs and people will be able to apt-get
> > install it from there.
> 
> cool - thanks.
> 
> > Sure, but there's a measurable performance difference if you compile out
> > spinlocks
> 
> if people care about the last 5% performance, they still have several
> options:
> o build your own kernel

	As far as you know am I the only person, that has reported not being
	able to boot a 2.4.20-pa?? kernel compiled either natively or cross ? 

	By the way, I tried pa24 today, though I haven't built it natively
	yet I cross compiled it to no avail... 

> o run HPUX
> 
> I've not done or seen any lmbench perf results recently but before hpux
> was 10x faster on context switch/task related stuff.  And X11 server
> takes advantage of HW acceleration.
> (I'm associating UP systems with graphics which isn't always true)
> 
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
Aaron St. Pierre			tel: 978.828.6177
asp@ungod.com

 Either I'm dead or my watch has stopped.
 		-- Groucho Marx's last words


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> I've not done or seen any lmbench perf results recently but before hpux

well, we can fix that... :) Here are the numbers for a 2x440Mhz A500 running 
2.4.20-pa24 SMP.

btw, if you look at
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-April/015984.html
we are only 2-3x slower than hpux :-)

I'm a bit confused about the "mmap latency" numbers. why are they so
high?

Related to this, thibaut and I were experimenting with running dbench on
two A500s today running identical kernels, but one is 2x440MHz and one
is 2x550MHz. The 550MHz is almost 10x faster. Is that expected?
Memory/disk configurations (3GB RAM in 440MHz, 2.5GB in 550MHz, etc) are 
not exactly the same, but I wouldn't have expected them to differ by that much.

randolph

                 L M B E N C H  2 . 0   S U M M A R Y
                 ------------------------------------


Basic system parameters
----------------------------------------------------
Host                 OS Description              Mhz
                                                    
--------- ------------- ----------------------- ----
ios       Linux 2.4.20-        hppa64-linux-gnu  440

Processor, Processes - times in microseconds - smaller is better
----------------------------------------------------------------
Host                 OS  Mhz null null      open selct sig  sig  fork exec sh  
                             call  I/O stat clos TCP   inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ----
ios       Linux 2.4.20-  440 0.73 1.85 10.2 11.8 110.8 2.17 16.9 17.K 41.K 85.K

Context switching - times in microseconds - smaller is better
-------------------------------------------------------------
Host                 OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
                        ctxsw  ctxsw  ctxsw ctxsw  ctxsw   ctxsw   ctxsw
--------- ------------- ----- ------ ------ ------ ------ ------- -------
ios       Linux 2.4.20- 5.630 5.1500 4.9900 9.0800   23.4    52.1   175.8

*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host                 OS 2p/0K  Pipe AF     UDP  RPC/   TCP  RPC/ TCP
                        ctxsw       UNIX         UDP         TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
ios       Linux 2.4.20- 5.630  20.4 48.4  89.2 172.5 114.1 351.5 1000

File & VM system latencies in microseconds - smaller is better
--------------------------------------------------------------
Host                 OS   0K File      10K File      Mmap    Prot    Page	
                        Create Delete Create Delete  Latency Fault   Fault 
--------- ------------- ------ ------ ------ ------  ------- -----   ----- 
ios       Linux 2.4.20-  130.0   80.0  509.9  180.0  3120.0K 603.4    58.0

*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------
Host                OS  Pipe AF    TCP  File   Mmap  Bcopy  Bcopy  Mem   Mem
                             UNIX      reread reread (libc) (hand) read write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
ios       Linux 2.4.20- 49.1 81.0 33.6   74.0  268.4  201.8  168.8 260. 250.9

Memory latencies in nanoseconds - smaller is better
    (WARNING - may not be correct, check graphs)
---------------------------------------------------
Host                 OS   Mhz  L1 $   L2 $    Main mem    Guesses
--------- -------------  ---- ----- ------    --------    -------
ios       Linux 2.4.20-   440  20.0   20.0  220.0    No L1 cache?


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> 2.4.20-pa24 PA20 memory ordering
> Kudos to John David Anglin and Carlos O'Donnell for realizing
> PA 2.0 is not strongly ordered like PA1.x is.
> Read appendix G or PA-RISC 2.0 Architecture (Gerry Kane) for
> details on "Memory Ordering Model".

Sorry, this is wrong.  I'm afraid you are wasting your time with all of
these code changes.

The problem is that the Kane book defines the architecture, i.e. it
defines what can be done, not what has been done.  Of course, to know what
has been done you have to read the various processor ERS's, and I'm not
sure we've made any of the PA2.0 chip ERS's available.

Anyway, no PA2.0 processor has implemented the PSW O bit, TLB O bit or
support for the ,o completers (they are just ignored).  All of the PA2.0
processors are strongly ordered, just like the PA1.x processors are.  I
can pretty much guarantee that no future PA processor is going to change
that fact.

John Marvin
jsm@fc.hp.com


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Hi all,

Is this work-around could be safely remove now? (I just test it on 2.4.20-pa26
32bit UP as well as on a 2.4.21-pre4-pa23 of mine and seems to works fine)

Thanks for advice,
    Joel


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On Sun, Feb 09, 2003 at 04:24:54PM -0500, Aaron St. Pierre wrote:
> In another life Grant Grundler wrote:
> > if people care about the last 5% performance, they still have several
> > options:
> > o build your own kernel
> 
> 	As far as you know am I the only person, that has reported not being
> 	able to boot a 2.4.20-pa?? kernel compiled either natively or cross ? 

yes. So it's not an option for you.

> > o run HPUX
> > 
> > I've not done or seen any lmbench perf results recently but before hpux
> > was 10x faster on context switch/task related stuff.  And X11 server

Seems I remembered this partially wrong.
Linux was slightly faster in lots of areas, ~5x slower on fork/exec/shi,
and ~10x slower mmap latency.

http://lists.parisc-linux.org/pipermail/parisc-linux/2002-March/015966.html

grant


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> Is this work-around could be safely remove now? (I just test it on 2.4.20-pa26
> 32bit UP as well as on a 2.4.21-pre4-pa23 of mine and seems to works fine)

i think we should leave it in for now, since some people (?) are still
running woody/testing which doesn't have the new gcc-3.2 yet. we can
phase that out in a few months i guess.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi all,

Since a month, I use ppp to have an external ISP connection (to have additional
rsync and cvs).

All seems to work fine, never the less I notice some pppd messages which
I do not noticed on my i386 Debian GNU/Linux box:
...
Feb 10 17:34:57 fw01 pppd[1543]: read: Resource temporarily unavailable
Feb 10 17:34:57 fw01 pppd[1543]: read /dev/ppp: Resource temporarily unavailable
...
(there are so many that it become annoying :()

Well, analysing sources, it seems to come from thread? 
Is there some known pb regarding hppa-linux thread implementation (kernel,
glibc, pppd, ...)?

Thanks in advance for help,
    Joel



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>
>> Is this work-around could be safely remove now? (I just test it on 2.4.20-pa26
>> 32bit UP as well as on a 2.4.21-pre4-pa23 of mine and seems to works fine)
>
>i think we should leave it in for now, since some people (?) are still
>running woody/testing which doesn't have the new gcc-3.2 yet.
Sorry, my Bad (I would have to check).

>  we can
>phase that out in a few months i guess.
>
Thanks,
    Joel


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> All seems to work fine, never the less I notice some pppd messages which
> I do not noticed on my i386 Debian GNU/Linux box:
> ...
> Feb 10 17:34:57 fw01 pppd[1543]: read: Resource temporarily unavailable
> Feb 10 17:34:57 fw01 pppd[1543]: read /dev/ppp: Resource temporarily unavailable

this probably comes from apps that assume EAGAIN==EWOULDBLOCK. we need
to probably fix this in glibc.... let's add it to Carlos' todo list! :-)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> Well, analysing sources, it seems to come from thread? 
> Is there some known pb regarding hppa-linux thread implementation (kernel,
> glibc, pppd, ...)?

Yes.  There have been issues with locking in glibc wrt threads.  Also,
the functions in atomicity.h are not atomic.  There may also be problems
in the kernel, particularly SMP.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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>
>> Well, analysing sources, it seems to come from thread? 
>> Is there some known pb regarding hppa-linux thread implementation (kernel,
>> glibc, pppd, ...)?
>
>Yes.  There have been issues with locking in glibc wrt threads.  Also,
>the functions in atomicity.h are not atomic.  There may also be problems
>in the kernel, particularly SMP.
>
Ha ok, I will so wait.

Thanks to all,
    Joel


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>> All seems to work fine, never the less I notice some pppd messages which
>> I do not noticed on my i386 Debian GNU/Linux box:
>> ...
>> Feb 10 17:34:57 fw01 pppd[1543]: read: Resource temporarily unavailable
>> Feb 10 17:34:57 fw01 pppd[1543]: read /dev/ppp: Resource temporarily unavailable
>
>this probably comes from apps that assume EAGAIN==EWOULDBLOCK. we need
>to probably fix this in glibc.... let's add it to Carlos' todo list! :-)
>

Hmm just: a quick look in src and effectively in mainly pppd/sys-linux.c
test errno != EWOULDBLOCK (for sys-sunos4.c we met more (errno != EAGAIN
&& errno != EWOULDBLOCK) 
I am curious if some change occurs about this in cvs?

Thanks,
    Joel


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>
>>> All seems to work fine, never the less I notice some pppd messages which
>>> I do not noticed on my i386 Debian GNU/Linux box:
>>> ...
>>> Feb 10 17:34:57 fw01 pppd[1543]: read: Resource temporarily unavailable
>>> Feb 10 17:34:57 fw01 pppd[1543]: read /dev/ppp: Resource temporarily
unavailable
>>
>>this probably comes from apps that assume EAGAIN==EWOULDBLOCK. we need
>>to probably fix this in glibc.... let's add it to Carlos' todo list! :-)
>>
>
... sys-sunos4.c we meet more (errno != EAGAIN && errno != EWOULDBLOCK) 

In cvs, the same for sys-aix4.c and sys-osf.c; could I safely try the same
here?

Joel


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On Mon, Feb 10, 2003 at 08:13:04AM -0800, Randolph Chung wrote:
> > All seems to work fine, never the less I notice some pppd messages which
> > I do not noticed on my i386 Debian GNU/Linux box:
> > ...
> > Feb 10 17:34:57 fw01 pppd[1543]: read: Resource temporarily unavailable
> > Feb 10 17:34:57 fw01 pppd[1543]: read /dev/ppp: Resource temporarily unavailable
> 
> this probably comes from apps that assume EAGAIN==EWOULDBLOCK. we need
> to probably fix this in glibc.... let's add it to Carlos' todo list! :-)

It's already in my TODO :)

-- snip --
- EWOULDBLOCK emulation
        = Is EWOULDBLOCK emulation required?
        = What happens if we alias EWOULDBLOCK as EAGAIN
        = from the kernel hearders?
        - Break HPUX compat?
-- snip --

As JDA notes we still have broken atomic functions in atomicity. Which
we are planning to fix with a light weight syscall.

c.


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On Mon, 2003-02-10 at 18:49, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.5
> Changes by:	jejb	03/02/10 17:49:17
> 
> Modified files:
> 	arch/parisc/kernel: init_task.c signal.c 
> 	include/asm-parisc: ptrace.h 
> 
> Log message:
> Update for new kernel signal/sigaction split to replace sig

I should add a warning here that doing this has eliminated the pa-risc
private PTRACE_SETSIGINFO and PTRACE_GETSIGINFO definitions in favour of
the newly minted global kernel ones in linux/ptrace.h

Unfortunately, the values have changed, so some user space tracing tools
that relied on these may have to change.

I think they were unused previously, so all may be well, but someone who
knows this area should check.

James




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Carlos,

>
>On Mon, Feb 10, 2003 at 08:13:04AM -0800, Randolph Chung wrote:
>> > All seems to work fine, never the less I notice some pppd messages which
>> > I do not noticed on my i386 Debian GNU/Linux box:
>> > ...
>> > Feb 10 17:34:57 fw01 pppd[1543]: read: Resource temporarily unavailable
>> > Feb 10 17:34:57 fw01 pppd[1543]: read /dev/ppp: Resource temporarily
>unavailable
>> 
>> this probably comes from apps that assume EAGAIN==EWOULDBLOCK. we need
>> to probably fix this in glibc.... let's add it to Carlos' todo list! :-)
>
>It's already in my TODO :)
>
>-- snip --
>- EWOULDBLOCK emulation
>        = Is EWOULDBLOCK emulation required?
>        = What happens if we alias EWOULDBLOCK as EAGAIN
>        = from the kernel hearders?
>        - Break HPUX compat?
>-- snip --
>
>As JDA notes we still have broken atomic functions in atomicity. Which
>we are planning to fix with a light weight syscall.
>
Thanks for advises,
    Joel


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From: =?ISO-8859-15?Q?R=FCdiger_Scholz?= <r.scholz@bluehash.de>
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Subject: [parisc-linux] Tag Starvation on 715/100
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This is a multi-part message in MIME format.
--------------060706060206080300040804
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Hi,

today my machine hangs when I tried to do a 'cvs update' for the newest 
PA/RISC-Kernel. So I pressed the power button to reboot the machine. But 
now during startup when fsck is running, the scsi-driver gives me an 
error message, that my harddisc is "suffering from tag starvation". 
Later the machine crashes. 
Booting  a 2.5.59-kernel is no problem (even it's not possible to login 
on serial console... ).

Has anybody the same problem and/or can anybody help?

Facts: 715/100, 128 MB, 2 GB Seagate, Kernel 2.4.20-pa22, gcc-3.0.4, 
Debian testing.
System.map is here: 
http://homepages.tu-darmstadt.de/~rscholz/parisc/System.map 
<http://homepages.tu-darmstadt.de/%7Erscholz/parisc/System.map>

TIA, Rdiger


--------------060706060206080300040804
Content-Type: text/plain;
 name="CAPTURE.TXT"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="CAPTURE.TXT"



----------------------------------------------------------------------------
BootRom Version    1.6  
Memory Size:  128 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.
----------------------------------------------------------------------------
Command                                Description
-------                                -----------
Auto [boot|search] [on|off]            Set/show auto mode
Boot [pri|alt [isl]]                   Boot from primary or alternate path
Boot [scsi|eisa.<slot>[.<addr>]] [isl] Boot from SCSI or EISA
Boot lan[.<addr>] [install] [isl]      Boot from LAN
Chassis [on|off]                       Set/show chassis codes display mode
DefaultSS                              Reboot and set EEPROM to default values
Diagnostic [on|off]                    Set/show diagnostic boot mode
Fastboot [on|off]                      Set/show fast boot mode
Help                                   Show this command menu
Information                            Show system information
LanAddress                             Show LAN station addresses
Monitor [<DEV>[.<type>]]               Set/show graphics monitor type
                                       (<DEV>=graphics|graphics_<1|2>)
Path [pri|alt [<DEV>[.<addr>]]]        Set/show boot source path
                                       (<DEV>=lan|scsi|eisa.<slot>)
Path [console [<DEV>[.<parm>]]]        Set/show boot console path
                                       (<DEV>=<RS232>|<GRAPH>
                                        <RS232>=rs232|rs232_2
                                        <parm>=<baud>.<length>.<parity>
                                        <GRAPH>=graphics|graphics_<1|2>
                                        <parm>=<monitor>)
Path [keyboard [hil|ps2]]              Set/show boot keyboard path
Pim [hpmc|toc|lpmc]                    Show PIM info
Search [ipl] [scsi|eisa]               Show potential boot devices
Search [ipl] [lan [install]]           Show potential boot LAN devices
Secure [on|off]                        Set/show security mode
----------------------------------------------------------------------------
BOOT_ADMIN> bo pri ipl
 


Attempting to boot.

Loading Initial Program Loader


IPL successfully loaded


Booting
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002

Partition Start(MB) End(MB) Id Type

1               1      22   f0 Palo
2              23      64   83 ext2
3              65     194   82 swap
4             195    2046   83 ext2
 
PALO(F0) partition contains:
    0/vmlinux32 3223985 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).Current command line:
2/vmlinux root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102

 0: 2/vmlinux
 1: root=/dev/sda4
 2: HOME=/
 3: devfs=mount
 4: console=ttyS0
 5: TERM=vt102

Edit which field?

(or 'b' to boot with this command line)?

Command line for kernel: 'root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
ELF32 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 2100772 mediaptr 0x1000
Segment 1 load 00302000 size 467584 mediaptr 0x202000
Segment 2 load 00378000 size 286720 mediaptr 0x275000
Segment 3 load 003c0000 size 32768 mediaptr 0x2bb000
Segment 4 load 003e9fac size 107760 mediaptr 0x2c3fac
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.20-pa22 (ruediger@gandalf) (gcc version 3.0.4) #2 Don Jan 23 15:44:27 CET 2003
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 000060b0 00000481 00000000 00000000 77b661a7 00000000 00000004 00000072 00000072
vers  0000000b
model 9000/715
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 99.73 BogoMIPS
Memory: 126348k available
Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf4000000 [0], versions 0x4, 0x0, 0x77
2. Mirage GSC Builtin Graphics (10) at 0xf8000000 [1], versions 0x13, 0x0, 0x85
3. Mirage Core BA (11) at 0xf0100000 [2], versions 0x29, 0x0, 0x81
4. Mirage Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x29, 0x0, 0x82
5. Mirage Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x29, 0x0, 0x8a
6. Mirage Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x29, 0x0, 0x8c
7. Mirage Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x29, 0x0, 0x74
8. Mirage Audio (10) at 0xf0104000 [2/0/8], versions 0x29, 0x0, 0x7b
9. Mirage Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x29, 0x0, 0x83
10. Mirage Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x29, 0x0, 0x84
11. Mirage Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x29, 0x0, 0x84
12. Mirage Wax BA (11) at 0xf0200000 [5], versions 0x13, 0x0, 0x8e
13. Mirage 100 Wax HIL (10) at 0xf0201000 [5/0/1], versions 0x13, 0x0, 0x73
14. Mirage Wax RS-232 (10) at 0xf0202000 [5/0/2], versions 0x13, 0x0, 0x8c
15. Mirage 100 (0) at 0xfffbe000 [8], versions 0x60b, 0x0, 0x4
16. Memory (1) at 0xfffbf000 [9], versions 0x4b, 0x0, 0x9
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
Lasi version 0 at 0xf0100000 found.
LED display at f00e0000 registered
Wax at 0xf0200000 found.
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Gecko-style soft power switch enabled.
Starting kswapd
Journalled Block Device driver loaded
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
STI GSC/PCI graphics driver version 0.9
STI byte mode ROM at f4000000, hpa at f4000000
STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071A
STI word mode ROM at f0024000, hpa at f8000000
STI id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1024
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio: 0xf4100000
fb1: stifb 1024x768-8 frame buffer device, id: 2b4ded6d, mmio: 0xf8100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0105800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0202800 (irq = 121) is a 16550A
PS/2 keyboard port at 0xf0108000 (irq 69) found, device attached.
PS/2 psaux port at 0xf0108100 (irq 69) found, device attached.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.07
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 7A DC 08 IRQ 87.
82596.c $Revision: 1.30 $
SCSI subsystem driver Revision: 1.00
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2 
scsi0 : LASI SCSI 53c700
scsi0: (2:0) Synchronous at offset 8, period 100ns
  Vendor: PLEXTOR   Model: CD-ROM PX-20TS    Rev: 1.01
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi0: (3:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST32430N          Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 3, lun 0
scsi0: (3:0) Enabling Tag Command Queuing
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
Partition check:
 /dev/scsi/host0/bus0/target3/lun0: p1 p2 p3 p4
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 2, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.12
Lasi Harmony Audio driver V0.9a, h/w id 20, rev. 18 at 0xf0104000, IRQ 82
mice: PS/2 mouse device common for all mice
HP SDC: HP SDC at 0xf0201000, IRQ 126 (NMI IRQ 125)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :    70.000 MB/sec
   8regs_prefetch:    70.000 MB/sec
   32regs    :   111.200 MB/sec
   32regs_prefetch:   111.600 MB/sec
raid5: using function: 32regs_prefetch (111.600 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
md: Autodetecting RAID arrays.
HP SDC: Transaction add failed: transaction already queued?
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
HP SDC: Transaction add failed: transaction already queued?
HP SDC: read timeout (949695us)!
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
scsi0 (3:0) Target is suffering from tag starvation.
scsi0 (3:0) New error handler wants to abort command
	0x2a 00 00 32 1b c8 00 00 08 00 
scsi0 (3:0) New error handler wants to abort command
	0x00 00 00 00 00 00 
scsi0: Bus Reset detected, executing command 00000000, slot 00000000, dsp 000f04a8[04a8]
 failing command because of reset, slot 00010520, cmnd 100db400
 failing command because of reset, slot 00010654, cmnd 100db800
 failing command because of reset, slot 00010788, cmnd 100db600
 failing command because of reset, slot 000108bc, cmnd 100dc200
 failing command because of reset, slot 000109f0, cmnd 100db000
 failing command because of reset, slot 00010b24, cmnd 100dca00
 failing command because of reset, slot 00010c58, cmnd 100db200
 failing command because of reset, slot 00010d8c, cmnd 100eec00
 failing command because of reset, slot 00010ec0, cmnd 100dc800
 failing command because of reset, slot 00011128, cmnd 100dc400
 failing command because of reset, slot 0001125c, cmnd 100db800
 failing command because of reset, slot 000114c4, cmnd 100eee00
 failing command because of reset, slot 000115f8, cmnd 100dce00
 failing command because of reset, slot 0001172c, cmnd 100eea00
scsi0 (3:0) New error handler wants to abort command
	0x2a 00 00 32 37 38 00 00 08 00 

Stack Dump:
 100f8680:  0004ff0e 00002002 00000000 0000ffff 
 100f8670:  1003c960 1022019c 100f8654 100f8654 
 100f8660:  00000000 102e6044 00000001 00000001 
 100f8650:  00001ffb 10587e40 10205d64 00002003 
 100f8640:  0000000f 00000000 00000000 00000000 
 100f8630:  00000000 10205d64 00000000 00000001 

Kernel addresses on the stack:
 [<1022019c>]  [<10205d64>]  [<10205d64>]  [<10206b34>] 
 [<10206d94>]  [<10107c4c>]  [<10107cf4>]  [<1010521c>] 
 [<1025e33c>]  [<101626e4>]  [<10121e38>]  [<10204a0c>] 
 [<10162930>]  [<10204a0c>]  [<10204c1c>]  [<10206c40>] 
 [<101205b8>] 

Kernel Fault: Code=26 regs=100f8680 (Addr=00000048)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110 Not tainted
r00-03  00000000 103cee41 1022019c 100db600
r04-07  10583014 00002002 00000000 0000ffff
r08-11  1003c960 00002001 10312810 10315810
r12-15  00000000 10587e40 00000001 f0000704
r16-19  f000b858 00000002 00000000 00000005
r20-23  00000000 000108bc 00000003 00000000
r24-27  00000001 00000001 10315b60 10302010
r28-31  00000001 00001ffc 100f8680 1011c9a4
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 102201d4 102201d8
 IIR: 4a930090    ISR: 00000000  IOR: 00000048
 CPU:        0   CR30: 100f8000 CR31: 103c0000
 ORIG_R28: 6f707172

--------------060706060206080300040804--



From - Thu Nov 08 21:26:47 2018
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From: Bad Max <badmax@club-internet.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Squid freeze
Date: Tue, 11 Feb 2003 17:38:24 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:17696

Hi,

I've tried to run squid on my PA box under Debian 3.0. But squid freeze
at launch : it do nothing, it is simply frozen, it is not possible to parse
any line command (squid -v print nothing).

I did a dist-upgrade but nothing change. So I get the lastest version
of squid 2.5 and compiled it. Same symptom, squid is frozen. I did a
little modification to src/main.c in squid, in the main() function : I
took mainParseOptions() and put it in first of main() (it was executed
later after several others miscellaneous functions).

Now squid work perfectly. I suspect a bug in gcc, what do you think
about ?
-------
Bad Max
========
Amiga User
GNU User
WWW: perso.club-internet.fr/badmax



From - Thu Nov 08 21:26:47 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Squid freeze
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Cc: parisc-linux@lists.parisc-linux.org
To: badmax@club-internet.fr (Bad Max)
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> Now squid work perfectly. I suspect a bug in gcc, what do you think
> about ?

I fixed a hang in the libstdc++ locking code on the weekend.  This
affects gcc 3.3 and later on PA 1.x machines.  Other than that,
there are no reported/known freezes caused by gcc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hello

On my 712/80, I could also read the same message but I do not have any
SCSI error. It is running under 2.4.17-pa20.

On 11-fv-03, you wrote:

| > Hi,
| > 
| > today my machine hangs when I tried to do a 'cvs update' for the newest
| > PA/RISC-Kernel. So I pressed the power button to reboot the machine. But
| > now during startup when fsck is running, the scsi-driver gives me an
| > error message, that my harddisc is "suffering from tag starvation".
| > Later the machine crashes. Booting a 2.5.59-kernel is no problem (even
| > it's not possible to login on serial console... ).
| > 
| > Has anybody the same problem and/or can anybody help?
| > 
| > Facts: 715/100, 128 MB, 2 GB Seagate, Kernel 2.4.20-pa22, gcc-3.0.4, 
| > Debian testing.
| > System.map is here: 
| > http://homepages.tu-darmstadt.de/~rscholz/parisc/System.map 
| > <http://homepages.tu-darmstadt.de/%7Erscholz/parisc/System.map>
| > 
| > TIA, Rdiger
| > 

-------
Bad Max
========
Amiga User
GNU User
WWW: perso.club-internet.fr/badmax



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Subject: [parisc-linux] Re: Squid freeze
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Hello

On 11-fv-03, you wrote:

| >> Now squid work perfectly. I suspect a bug in gcc, what do you think
| >> about ?
| > 
| > I fixed a hang in the libstdc++ locking code on the weekend.  This
| > affects gcc 3.3 and later on PA 1.x machines.  Other than that,
| > there are no reported/known freezes caused by gcc.
| > 
| > Dave

In fact, I did a mistake because I did not resolve the problem by changing
the code but by adding the -X option to command line (it force full debug).

The -v option work without this option because of my change so there is
perhaps a bug somewhere in the code of squid (gcc ? squid ? libc ? don't
know for now).
-------
Bad Max
========
Amiga User
GNU User
WWW: perso.club-internet.fr/badmax



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I believe the problem is the driver is using too many tags on an old
drive.  You want to cut the number or disable tagged queing in the
driver for this drive.  Grant would know the details but early Seagates
had buggy support for this feature.

> SCSI error. It is running under 2.4.17-pa20.
> 
> On 11-fv-03, you wrote:
> 
> | > Hi,
> | > 
> | > today my machine hangs when I tried to do a 'cvs update' for the newest
> | > PA/RISC-Kernel. So I pressed the power button to reboot the machine. But
> | > now during startup when fsck is running, the scsi-driver gives me an
> | > error message, that my harddisc is "suffering from tag starvation".
> | > Later the machine crashes. Booting a 2.5.59-kernel is no problem (even
> | > it's not possible to login on serial console... ).
> | > 
> | > Has anybody the same problem and/or can anybody help?
> | > 
> | > Facts: 715/100, 128 MB, 2 GB Seagate, Kernel 2.4.20-pa22, gcc-3.0.4, 
> | > Debian testing.
> | > System.map is here: 
> | > http://homepages.tu-darmstadt.de/~rscholz/parisc/System.map 
> | > <http://homepages.tu-darmstadt.de/%7Erscholz/parisc/System.map>
> | > 
> | > TIA, Rdiger
> | > 
> 
> -------
> Bad Max
> ========
> Amiga User
> GNU User
> WWW: perso.club-internet.fr/badmax
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> I believe the problem is the driver is using too many tags on an old
> drive.  You want to cut the number or disable tagged queing in the
> driver for this drive.  Grant would know the details but early Seagates
> had buggy support for this feature.

I turn it off on my cluster of 715/50's because the drives of that era
just don't support it properly (e.g. random hardware lockups).

c.



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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: Re: [parisc-linux] pppd, pthread and hppa-linux question?
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Hi all,

>
>>
>>On Mon, Feb 10, 2003 at 08:13:04AM -0800, Randolph Chung wrote:
>>> > All seems to work fine, never the less I notice some pppd messages
which
>>> > I do not noticed on my i386 Debian GNU/Linux box:
>>> > ...
>>> > Feb 10 17:34:57 fw01 pppd[1543]: read: Resource temporarily unavailable
>>> > Feb 10 17:34:57 fw01 pppd[1543]: read /dev/ppp: Resource temporarily
>>unavailable
>>> 
>>> this probably comes from apps that assume EAGAIN==EWOULDBLOCK. we need
>>> to probably fix this in glibc.... let's add it to Carlos' todo list!
:-)
>>
>>It's already in my TODO :)
>>
>>-- snip --
>>- EWOULDBLOCK emulation
>>        = Is EWOULDBLOCK emulation required?
>>        = What happens if we alias EWOULDBLOCK as EAGAIN
>>        = from the kernel hearders?
>>        - Break HPUX compat?
>>-- snip --
>>
>>As JDA notes we still have broken atomic functions in atomicity. Which
>>we are planning to fix with a light weight syscall.
>>
Awaiting this Carlos work, I suggest following workaround:

--- ppp-2.4.1.uus.orig/pppd/sys-linux.c
+++ ppp-2.4.1.uus/pppd/sys-linux.c
@@ -929,7 +933,7 @@
 	    fd = ppp_dev_fd;
     }
     if (write(fd, p, len) < 0) {
-	if (errno == EWOULDBLOCK || errno == ENOBUFS
+	if (errno == EWOULDBLOCK || errno == EAGAIN || errno == ENOBUFS
 	    || errno == ENXIO || errno == EIO || errno == EINTR)
 	    warn("write: warning: %m (%d)", errno);
 	else
@@ -993,7 +997,8 @@
     nr = -1;
     if (ppp_fd >= 0) {
 	nr = read(ppp_fd, buf, len);
-	if (nr < 0 && errno != EWOULDBLOCK && errno != EIO && errno != EINTR)
+	if (nr < 0 && errno != EWOULDBLOCK && errno !=EAGAIN \
+                   && errno != EIO && errno != EINTR)
 	    error("read: %m");
 	if (nr < 0 && errno == ENXIO)
 	    return 0;
@@ -1001,7 +1006,8 @@
     if (nr < 0 && new_style_driver && ifunit >= 0) {
 	/* N.B. we read ppp_fd first since LCP packets come in there. */
 	nr = read(ppp_dev_fd, buf, len);
-	if (nr < 0 && errno != EWOULDBLOCK && errno != EIO && errno != EINTR)
+	if (nr < 0 && errno != EWOULDBLOCK && errno !=EAGAIN \
+                   && errno != EIO && errno != EINTR)
 	    error("read /dev/ppp: %m");
 	if (nr < 0 && errno == ENXIO)
 	    return 0;
@@ -1035,7 +1041,7 @@
     if (n == 0)
 	fatal("eof on loopback");
 
-    if (errno != EWOULDBLOCK)
+    if (errno != EWOULDBLOCK && errno != EAGAIN)
 	fatal("read from loopback: %m(%d)", errno);
 
     return rv;

It seems to me to avoid to much annoying messages.

Do you think I woul have to open a pr near debian maintainer pkg?

Joel


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Subject: RE: [parisc-linux] Squid freeze
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Hi,
>
>I've tried to run squid on my PA box under Debian 3.0. But squid freeze
>at launch : it do nothing, it is simply frozen, it is not possible to parse
>any line command (squid -v print nothing).
>
>I did a dist-upgrade but nothing change. So I get the lastest version
>of squid 2.5 and compiled it. Same symptom, squid is frozen. I did a
>little modification to src/main.c in squid, in the main() function : I
>took mainParseOptions() and put it in first of main() (it was executed
>later after several others miscellaneous functions).
>
Don't do this.

'dmesg' would inform you too that squid make a segfault?

I already report this problem in this ml and in Debian bug report (sorry
I do not remember # but it is easy to find back).

The problem was in fact due to a bad update of libpam-modules and a modification
in /etc/security/limits.conf which didn't occurs by default. You would found
tree line:
*       hard    core      0
*       hard    rss       5000
*       hard    nproc     20

which you can remove (what the update should do if you answer Y at this time)

Now, you have to quit completely your loging; login again and you should
now be able to use squid.


hth,
    Joel


---------------------------------
Vous surfez avec une ligne classique ?
Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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From: Bad Max <badmax@club-internet.fr>
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Subject: [parisc-linux] Re: Squid freeze
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Hi,

Le 11-fv-03, Joel Soete a crit :

[snip]
| > Don't do this.
| > 
| > 'dmesg' would inform you too that squid make a segfault?
| > 
| > I already report this problem in this ml and in Debian bug report (sorry
| > I do not remember # but it is easy to find back).
| > 
| > The problem was in fact due to a bad update of libpam-modules and a
| > modification in /etc/security/limits.conf which didn't occurs by
| > default. You would found tree line:
| > * hard core 0
| > * hard rss 5000
| > * hard nproc 20
| > 
| > which you can remove (what the update should do if you answer Y at this
| > time)
| > 
| > Now, you have to quit completely your loging; login again and you should
| > now be able to use squid.
| > 
| > 
| > hth,
| >    Joel
| > 

Sorry but there are no messages at all about squid in dmesg. I checked
/etc/security/limits.conf and the three lines you indicated are already
removed.

I repeat : I must pass the option -X (force full debug) to have squid
working. I will spend time tomorow to locate what seems to be at the
origin of this lock.
-------
Bad Max
========
Amiga User
GNU User
WWW: perso.club-internet.fr/badmax



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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] 2.5 status update 2003-02-11
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Warning: Linus' tree will probably now build for PA-RISC.  This does
NOT mean that it will work.  You still need to pick up a PA patch from
ftp.parisc-linux.org for it to work.

The good news is that patch is now smaller than ever.  The .gz is down
to 50k; uncompressed it's around 200k.  Almost all of this is the
HIL drivers.

Things which've been done since the last report:
 - Start of module support (Randolph)
 - Merged 2.5.59 (James)
 - More compat chanages (Randolph / Stephen)
 - Convert lasi 82596 driver to DMA api (James)
 - Eliminate ccio_get_fake (James)
 - Raw keyboard support (Helge)
 - Merged 2.5.60 (Matthew / James)

Current status:
 - Merged to 2.5.60, boots on 712
 - 2.5.58 booted on A500, 715/64
 - 2.5.57 booted on C160
 - SuckyIO serial problems still exist.
 - Don't know what other patches need to be brought forward from 2.4
 - SMP compiles, but doesn't work yet
 - No preemptible support

Todo list:
 - review diff vs 2.4 for additional changes
 - Serial code not working for c3000
 - the fix for do_fork needs checking
 - our PDC early debug console hacks need to be cleaned up somehow
 - ad1889 driver: only works with .wav;  Convert to ALSA (ggg, tausq, tbone)
 - ns87415 dma doesn't work reliably on suckyio-systems
 - CPU hotplug support (useful to take flaky CPU "offline")
 - flush_tlb_kernel_range is horribly inefficient
 - flush_icache_user_range could flush just that range rather than the
   entire page.
 - (ab)use kmap/kunmap on 64-bit to eliminate flush_dcache calls.
 - cp_new_stat32 for sys_parisc32.c is inefficient; maybe it's better
   to fill in a tmp stat32 and just do copy_to_user in one go at the end?
 - syscall signal return path needs work
 - changes in arch/parisc/kernel/signal.c regarding HACK needs testing
 - signal.c #if CACHE_FLUSHING_IS_NOT_BROKEN needs to be solved
 - task_struct/thread_info split -- task_struct should not be visible in
   entry.S, we need to move some items into thread_info -- this includes
   pt_regs and maybe some of the flags (ptrace, etc)
 - Use zone_highmem for the 256MB of RAM at 64GB on Astro-based machines.
   (NB, what does Stretch do?)
 - investigate not putting in extable entries for put_kernel_asm; will
   probably reduce kernel size
 - call to pdc_suspend_usb() in inventory.c crashes c3k with kernel 2.5
 - fix HIL problem: ksoftirqd/0 eats 56% cpu (kernel 2.4 & kernel 2.5)
 - write floppy driver for lasi
 - write floppy driver for suckyio
 - XFS goes into an infinite loop when mounting volume.
 - spifi driver (rbrad)
 - write optimized versions of lcopy_{to,from}_user. Can we port the
   hpux versions?
 - kernel module loader support
 - IRQ cpu-affinity support
 - NPTL kernel support (CLONE_*TID flags need to be correctly handled by 
   sys_clone() and friends)
 - port sym53c8xx hppa changes forward (still needed?)

In progress:
 - Some options still need Kconfig help entries (see below!)
 - Look at Config.help too. (tbone, HIL -> helge?)
 - commit beta ALSA harmony driver (laurent)
 - port hil_kbd.c to new input layer
 - port hil_ptr.c to new input layer
 - oprofile support (tausq)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] 2.5 status update 2003-02-11
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>  - Don't know what other patches need to be brought forward from 2.4

I wrote a Trap 13 handler that was satifying Krystof's needs for his
LISP emulator... it's like 5 lines that I still haven't had time to add
to 2.5 :) JSM still hasn't had time to comment on it, but it was serving
the needs of the immediate signal handlers.

c.



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Subject: [parisc-linux] local symbols appearing in objdump/nm output
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nm and objdump both output local symbols from vmlinux.  this doesn't
happen on x86 (how about other architectures?)  let me give an example:

101a2700 T ext2_get_group_desc
101a27b8 T ext2_free_blocks
101a2824 t .L773
101a28ec t .L873
101a2970 t .L887
101a2b48 t .L844
101a2bd8 t .L888
101a2be0 t grab_block

on x86, that is:

c018b950 T ext2_get_group_desc
c018ba20 t read_block_bitmap
c018bac0 T ext2_free_blocks
c018be10 t grab_block

i have insufficient toolchain-fu to figure out what's going on and
what needs to be fixed, but these local symbols make CONFIG_KALLSYMS
basically useless.  Let me show you:

Kernel addresses on the stack:                                                  
 [<10127b8c>] .L1041+0x64/0xa8                                                  
 [<10105f6c>] show_trace+0x8c/0xc0                                              
 [<10127a30>] .L1018+0x0/0x38                                                   
 [<10105df0>] dump_stack+0x10/0x1c                                              
 [<101588e4>] __find_get_block+0x50/0x84                                        
 [<101589d0>] __getblk+0x20/0x30                                                
 [<10158a08>] .L1623+0xc/0x18                                                   
 [<101a605c>] ext2_get_branch+0x70/0x13c                                        
 [<101a6528>] ext2_get_block+0x88/0x408                                         
 [<1023b8bc>] .L1006+0x10/0x34                                                  
 [<10176a14>] .L1121+0x84/0xb0                                                  
 [<101393f4>] .L1477+0x44/0x74                                                  
 [<10176e38>] .L1155+0x8/0x34                                                   
 [<1013da40>] .L1106+0x34/0x74                                                  
 [<1013fbe8>] read_pages+0x58/0xe4                                              

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi,
	is there a place I can look to find out what are all the I/O cards
and devices that are supported by the 32 bit parisc Linux kernel? Will the
same cards be supported by the 64 bit parisc kernel? I assume that the 64
bit kernel will run the drivers in wide mode?

						Thanks,
							J. Curry


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Subject: Re: [parisc-linux] Supported Cards
Date: Wed, 12 Feb 2003 12:30:37 -0700
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On Wed, Feb 12, 2003 at 10:49:41AM -0800, CURRY,JOHN W (HP-Cupertino,ex1) wrote:
> Hi,
> 	is there a place I can look to find out what are all the I/O cards
> and devices that are supported by the 32 bit parisc Linux kernel?

No. You are looking for the official HP *supported* version of parisc-linux.
(Which unfortunately doesn't exist)

Some *drivers* that I know work:
o tulip ("DEC" 100bt)
o eepro100 (Intel 100BT)
o sym53c8xx_2 (parallel SCSI LSI 53c8xx, 53c1010)
o acenic (Tigon2 1000SX)
o tg3 (tigon3 1000bt and 1000SX)
o cpqfc (but only with Agilent Tachlite 51xx series)
o stifb/sticon (most older HP gfx cards up to PCI Vis-EG)
o serial (under Dino, LASI, suckyio)

And how well particular drivers works depends alot on which kernel
version one tries. 2.4.19 seems to be pretty good overall.
Basic rule is to just try *something* and report problems on this list.

ESIEE maintains a "this worked for me" webpage.
Links to ESIEE are on www.parisc-linux.org.


> Will the same cards be supported by the 64 bit parisc kernel?

I think so. 64-bit is used mostly on A500 - so strictly PCI
though folks can run it on both older and newer generations of
C-class machines.

> I assume that the 64 bit kernel will run the drivers in wide mode?

yes.

grant


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Subject: Re: [parisc-linux] local symbols appearing in objdump/nm output
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> nm and objdump both output local symbols from vmlinux.  this doesn't
> happen on x86 (how about other architectures?)  let me give an example:
> 
> 101a2700 T ext2_get_group_desc
> 101a27b8 T ext2_free_blocks
> 101a2824 t .L773
> 101a28ec t .L873
> 101a2970 t .L887
> 101a2b48 t .L844
> 101a2bd8 t .L888
> 101a2be0 t grab_block

This would appear to be a problem with the specific toolset (gas)
that you are using.  For example, there are no .L[0-9] labels in
the .o files of my gcc builds, but I see them in traps.o, for
example.  In this case, traps.o was built with the 64-bit toolset
(probably, debian).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> This would appear to be a problem with the specific toolset (gas)
> that you are using.  For example, there are no .L[0-9] labels in
> the .o files of my gcc builds, but I see them in traps.o, for
> example.  In this case, traps.o was built with the 64-bit toolset
> (probably, debian).

yup, i don't see this when building kernels with the latest toolchain.
willy is building with older cross-toolchain, so it's probably just a
matter of producing some more up to date tools and putting up on
parisc-linux.org ...

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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This is an automated response.

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the administrative address <nec-request@shirky.com>.

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Subject: [parisc-linux] Xfree 4.2.1 not running
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--------------Boundary-00=_U8G9GYF5TW3RAW06HH3P
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Hi.

I've tryed to compil Xfree v4.2.1 on my B180L.
The compilation works fine but I have a problem while trying to start X.
I guess I've ommited a CFLAGS or something else but I'm unable to solve the 
problem.
Gcc version is 3.2.1.


The log is in attachement.

Regards, 

	Guy Martin



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From - Thu Nov 08 21:26:48 2018
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From: "Joel Soete" <jsoe0708@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] glibc mallopt() pb with squid [was: Squid freeze]
Date: Fri, 14 Feb 2003 10:57:15 +0100
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Cc: "Bad Max" <badmax@club-internet.fr>,
	"Randolph Chung" <tausq@debian.org>,
	"John David Anglin" <dave@hiauly1.hia.nrc.ca>,
	"Carlos O'Donell" <carlos@baldric.uwo.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:17714

Hi all,

I come back to you with squid problem and glibc-2.3.

For recall, "Bax Max" asks help concerning squid hanging.

As in first reading, the Max's problem sounds similar to the one I encountered
before it works on my hppa testing (sarge) Debian, I suggest him to verify
some details (specially ulimits).
Well, it did not help.

Curious, I so installed squid testing dpkg on an unstable Debian  and effectively
it hang (very earlier because even simply query version do not work)?

Then I grab sources and try first to recompile the package with gcc-3.2 and
glibc-2.3.1-11 without optimisation (in mind the problem encountered in kernel
build): didn't help.

I ran so ddd to have a rough idea of the locking point; it appeared that
squid hangs at the first mallopt() in the following code:
[snip]
int
main(int argc, char **argv)
{
    int errcount = 0;
    int n;			/* # of GC'd objects */
    time_t loop_delay;
    mode_t oldmask;
#if defined(_SQUID_MSWIN_) || defined(_SQUID_CYGWIN_)
    int WIN32_init_err;
#endif

    debug_log = stderr;
    if (FD_SETSIZE < Squid_MaxFD)
	Squid_MaxFD = FD_SETSIZE;

#if defined(_SQUID_MSWIN_) || defined(_SQUID_CYGWIN_)
    if ((WIN32_init_err = WIN32_Subsystem_Init()))
	return WIN32_init_err;
#endif

    /* call mallopt() before anything else */
#ifdef HAVE_MALLOPT
#ifdef M_GRAIN
    /* Round up all sizes to a multiple of this */
    mallopt(M_GRAIN, 16);   <!<!<!<!<!<!<!<!<!<!<!<!< hanging here?
#endif
#ifdef M_MXFAST
    /* biggest size that is considered a small block */
    mallopt(M_MXFAST, 256);
#endif
#ifdef M_NBLKS
    /* allocate this many small blocks at once */
    mallopt(M_NLBLKS, 32);
#endif
#endif /* HAVE_MALLOPT */

To be sure, I just added some fprintf() [as in below testcase] and it confirmed
that it hangs well at this point.

On its side, Max nuke this part (not actually required) then squid works
fine.

In the hoppe to help more, I so build the following test case:
/*
 * $Id: main.c,v 1.345.2.4 2002/07/14 17:20:49 hno Exp $
 *
 * DEBUG: section 1     Startup and Main Loop
 * AUTHOR: Harvest Derived
 *
 * SQUID Web Proxy Cache          http://www.squid-cache.org/
 * ----------------------------------------------------------
 *
 *  Squid is the result of efforts by numerous individuals from
 *  the Internet community; see the CONTRIBUTORS file for full
 *  details.   Many organizations have provided support for Squid's
 *  development; see the SPONSORS file for full details.  Squid is
 *  Copyrighted (C) 2001 by the Regents of the University of
 *  California; see the COPYRIGHT file for full details.  Squid
 *  incorporates software developed and/or copyrighted by other
 *  sources; see the CREDITS file for full details.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *  
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 */

/*
#include "squid.h"
 */

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

/* getpid(), geteuid()  */
#include <sys/types.h>
#include <unistd.h>

/* setgroups() */
#include <grp.h>

/* mkdir() */
#include <sys/stat.h>
#define MAXPATHLEN 256

/* waitpid() */
#include <sys/wait.h>

/* mallopt() */
#include <malloc.h>

#define SQUID_MAXFD 4096

/* autoconf.h */
/* Define if you have the mallopt function.  */
#define HAVE_MALLOPT 1

/* dlmalloc.c */
#define M_GRAIN   3    /* UNUSED in this malloc */
#define M_MXFAST  1    /* UNUSED in this malloc */

int Squid_MaxFD;		/* SQUID_MAXFD */

FILE *debug_log = NULL;

int
main(int argc, char **argv)
{
    int errcount = 0;

    debug_log = stderr;
    if (FD_SETSIZE < Squid_MaxFD)
	Squid_MaxFD = FD_SETSIZE;

    fprintf(stderr, "nb_err: %d\n", errcount);
    /* call mallopt() before anything else */

#ifdef HAVE_MALLOPT
    fprintf(stderr, "  HAVE_MALLOPT \n");
#ifdef M_GRAIN
    /* Round up all sizes to a multiple of this */
    fprintf(stderr, " M_GRAIN set: %d\n", M_GRAIN);
    mallopt(M_GRAIN, 16);
#endif
#ifdef M_MXFAST
    /* biggest size that is considered a small block */
    fprintf(stderr, " M_MXFAST set: %d\n", M_MXFAST);
    mallopt(M_MXFAST, 256);
#endif
#ifdef M_NBLKS
    /* allocate this many small blocks at once */
    fprintf(stderr, " M_NBLKS set: %d\n", M_NBLKS);
    mallopt(M_NLBLKS, 32);
#endif
#endif /* HAVE_MALLOPT */

    return 0;
}

which I compile as near as possible as the original code:
gcc -DHAVE_CONFIG_H -DDEFAULT_CONFIG_FILE=\"/etc/squid.conf\" -I. -I. -I../include
-I. -I. -I../include -I../include    -g -Wall -D_REENTRANT -c foo.c
gcc -g -Wall -D_REENTRANT  -g -o tst foo.o 

Unforunately, tst run fine.

I finally check the precompile text of the original main.c sources in which
I just encountered:
 1) # 187 "/usr/include/malloc.h" 3
    extern int mallopt (int __param, int __val)

 2) [snip]
     mallopt(3.16);
     mallopt(1,256);
    ...

Why so squid hang on this mallopt() and not tst?

Is some gcc, libc gurus (Carlos, Dave, Randolph?) could help us more to understand
this pb (squid bug or gcc - glibc bug?)

Thanks in advance,
	Joel

PS: I try to find more details in the pre-assemble (-S) test of the original
sources but I not yet able to read this kind of stuff and understand what
is done, sorry?

---------------------------------
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Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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Subject: Re: [parisc-linux] smbfs ??????\\kahuna: Not...
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ummm... Please don't post huge logs in the subject of your message.

-- 
Michael Wood <mwood@its.uct.ac.za>


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Xref: news.gmane.org gmane.linux.ports.parisc:17716

On Fri, Feb 14, 2003 at 04:56:14PM +0200, Michael Wood wrote:
> ummm... Please don't post huge logs in the subject of your message.

He did post a followup apologising and explained how it happened.
See http://bugzilla.mozilla.org/show_bug.cgi?id=192562 too ;-)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi all,

I have a PCI SerialMux (8ports) which I put back in my b180.

a cat /proc/pci
learn me that it seems to be an 'Equinox System' card:
root@fw01:~# cat /proc/pci
PCI devices found:
  Bus  0, device   1, function  0:
    Serial controller: PCI device 113f:90f0 (Equinox Systems, Inc.) (rev
4).
      IRQ 96.
      Non-prefetchable 32 bit memory at 0xf0ff0000 [0xf0ffffff].

Is it possibly true?

On Equinox site it seems that drivers is included into Linux kernel.
I have only found reference to this driver into drivers/pci/devices.h.

Is somebody could advise me on howto insert this driver into kernel?

Thanks in advance,
    Joel
 

---------------------------------
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Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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Subject: [parisc-linux] Watchdog on parisc?
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Hi!

I'm currently playing a bit with my B132L and 715. They're working quite
nice, except that kernels aren't too stable (gcc-3.2, I'll do some more
test compiles with gcc-3.0, too).

I've looked through the docs available if a watchdog is mentioned. In
=2E/docs/platforms/b1xx-service.pdf there's a watchdog timeout error
declared (during selftest) so I *think* there is a watchdog, isn't
there? I've not yet seen a driver for it, nor have I seen any
documentation. Is there a watchdog (and possibly some docu or an hpux
vmunix to disassemble) so I could possibly write something better than
softdog.c?

MfG, JBG

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From: apcupsd-devel@master.oasi.gpa.it
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Subject: [parisc-linux] apcupsd-devel sent you a card from NiceCards!
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On Fri, Feb 14, 2003 at 05:48:35PM +0100, Joel Soete wrote:
> Hi all,
> 
> I have a PCI SerialMux (8ports) which I put back in my b180.

I'll assume you are talking about the HO board here.

> a cat /proc/pci learn me that it seems to be an 'Equinox System' card:
> root@fw01:~# cat /proc/pci
> PCI devices found:
>   Bus  0, device   1, function  0:
>     Serial controller: PCI device 113f:90f0 (Equinox Systems, Inc.) (rev
> 4).
>       IRQ 96.
>       Non-prefetchable 32 bit memory at 0xf0ff0000 [0xf0ffffff].
> 
> Is it possibly true?

yes. This board is the SST-8P with a different device ID.
Mail that I've exchanged with Equinox about this explained they
are contractually prohibited from supporting this board with
non-HPUX drivers.

Anyway, a few lines changes (I don't have the patch handy)
based on this note should be sufficient:
| p.s.,  I can tell you that the standard SST-8P ID is 0x9090 in case
| that helps you debug your baud rate problem.

Add a few case statements where you find "case 0x9090".
I know this hack works with 4.04 eqnx driver becuase I'm using
the same HP card in an x86 machine linux as a console server.
Sorry - I don't have a patch handy or know exactly where I keep
the source for that at the moment.

> On Equinox site it seems that drivers is included into Linux kernel.
> I have only found reference to this driver into drivers/pci/devices.h.

uhm...no. Maybe 2.5 kernels or something. I've put the original
tarballs I found on:
	ftp://gsyprf10.external.hp.com/pub/equinox

> Is somebody could advise me on howto insert this driver into kernel?

I use modprobe.  :^P
IIRC, the tarball has a readme on how to build/install.

grant


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On Fri, Feb 14, 2003 at 07:11:24PM +0100, Jan-Benedict Glaw wrote:
> Hi!
> 
> I'm currently playing a bit with my B132L and 715. They're working quite
> nice, except that kernels aren't too stable (gcc-3.2, I'll do some more
> test compiles with gcc-3.0, too).

gcc-3.2.1 has a few bugs that have bitten us already (search mail
archive on "pty.c"). I'm not sure if it's better to stick with
gcc 3.0 or grab something that's bleeding edge (gcc 3.3.x).

> I've looked through the docs available if a watchdog is mentioned. In
> ./docs/platforms/b1xx-service.pdf there's a watchdog timeout error
> declared (during selftest) so I *think* there is a watchdog, isn't
> there?

I'm not sure what this is refering to. The CPU has some HW checking
that is a sort of watchdog but it's CPU internal and only the firmware
touches those.

> I've not yet seen a driver for it, nor have I seen any
> documentation. Is there a watchdog (and possibly some docu or an hpux
> vmunix to disassemble) so I could possibly write something better than
> softdog.c?

not if it's what I'm thinking of (transaction timeout, ie causes an
HPMC). This is a built-in HW feature. 

grant


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On Sun, 2003-02-16 01:31:10 -0700, Grant Grundler <grundler@dsl2.external.h=
p.com>
wrote in message <20030216083110.GC18888@dsl2.external.hp.com>:
> On Fri, Feb 14, 2003 at 07:11:24PM +0100, Jan-Benedict Glaw wrote:
> > Hi!
> >=20
> > I'm currently playing a bit with my B132L and 715. They're working quite
> > nice, except that kernels aren't too stable (gcc-3.2, I'll do some more
> > test compiles with gcc-3.0, too).
>=20
> gcc-3.2.1 has a few bugs that have bitten us already (search mail
> archive on "pty.c"). I'm not sure if it's better to stick with
> gcc 3.0 or grab something that's bleeding edge (gcc 3.3.x).

Yeah, I know. I followed that thread. gcc-3.0 seems to produce a more
stable kernel, but even there are some gotchas (eg. strace'ing programs
often leads to stuck userland while I still can ping the box or complete
the three-way-handshake of a starting TCP connection...).

I'd possibly spend some time in invensting this...

> > I've looked through the docs available if a watchdog is mentioned. In
> > ./docs/platforms/b1xx-service.pdf there's a watchdog timeout error
> > declared (during selftest) so I *think* there is a watchdog, isn't
> > there?
>=20
> I'm not sure what this is refering to. The CPU has some HW checking
> that is a sort of watchdog but it's CPU internal and only the firmware
> touches those.

So there's nothing what's like a watchdog as you know it from some
machines (SGI Indys for example) or as add-on cards in machines (PCI/ISA
cards).

> > I've not yet seen a driver for it, nor have I seen any
> > documentation. Is there a watchdog (and possibly some docu or an hpux
> > vmunix to disassemble) so I could possibly write something better than
> > softdog.c?
>=20
> not if it's what I'm thinking of (transaction timeout, ie causes an
> HPMC). This is a built-in HW feature.=20

Hmmm... Triggering a HPMC would be a neat feature. So we could think
about a way to initiate something that, if not handled, would trigger a
HPMC some 60 seconds later:-?

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet!
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Subject: Re: [parisc-linux] Watchdog on parisc?
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On Sun, Feb 16, 2003 at 10:42:35AM +0100, Jan-Benedict Glaw wrote:
> So there's nothing what's like a watchdog as you know it from some
> machines (SGI Indys for example) or as add-on cards in machines (PCI/ISA
> cards).

Offhand, I think all the HP9000/8xx servers have either built-in
or add-on "management ports" for remote console. And that always
includes ability to reset or cycle power on the machine (or generate TOC).

> > not if it's what I'm thinking of (transaction timeout, ie causes an
> > HPMC). This is a built-in HW feature. 
> 
> Hmmm... Triggering a HPMC would be a neat feature. So we could think
> about a way to initiate something that, if not handled, would trigger a
> HPMC some 60 seconds later:-?

Generating an HPMC is easy. reference an address in MMIO space that
isn't maintained by a device.  Figuring out a failsafe way of knowing
when to trigger the HPMC is the hardpart.
 
Besides, Lamont proposed a patch to reset the machine after HPMC/panic.
I thought it was a great idea but several people I trust tell me it
needs a bit more work.

grant


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: [parisc-linux] .config fo a N class?
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Hi all,

I have the oportunity to test temporary a N class (N4000-55) dual processor.

I grab the config file of the test-drive L model; apply it against current
k-2.4.20-pa26 (just change 64 to 32 bits). I install this kernel on a ext
scsi disk and try to boot; unforunately it doesn't goes further than palo
message:
...
a common symptom -- search the FAQ and ml ..."

I try get a pim (from gsp TC); unfortunately empty (I mean all null values).

The only report (on esiee) I found regarding this kind of server was running
a 2.4.9 64 bits kernel.

Can somebody help me to find the corresponding config file?

Any add advise and idea are wellcome,
Thanks in advance,
    Joel


---------------------------------
Vous surfez avec une ligne classique ?
Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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on the ftp site, we currently have http://ftp.parisc-linux.org/gnat/
containing adarts.tar.bz2, gcc-bin-3.1-20020423.tar.bz2 and gnatxc.tar.gz.
i'm going to remove them unless anyone thinks this is an important part
of our bringup history to keep around.  as the person who did them,
i don't think they're important to keep.  i'll delete them tomorrow
unless someone says `stop'.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Mon, Feb 17, 2003 at 03:16:59PM +0000, Matthew Wilcox wrote:
> on the ftp site, we currently have http://ftp.parisc-linux.org/gnat/
> containing adarts.tar.bz2, gcc-bin-3.1-20020423.tar.bz2 and
> gnatxc.tar.gz.  i'm going to remove them unless anyone thinks this is
> an important part of our bringup history to keep around.  as the
> person who did them, i don't think they're important to keep.  i'll
> delete them tomorrow unless someone says `stop'.

If there's ada stuff and gnat in particular there, I hope removing that
won't take out the last ada system available. I believe it's quite hard
to get back.

-- 
I was playing poker the other night... with Tarot cards.
I got a full house and 4 people died.
	-- Steven Wright


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On Mon, Feb 17, 2003 at 05:21:58PM +0200, Harri Haataja wrote:
> If there's ada stuff and gnat in particular there, I hope removing that
> won't take out the last ada system available. I believe it's quite hard
> to get back.

No danger of that -- it's built as part of the debian gcc-3.2 build,
so there are substantially more recent compilers available.  gnat is
written in Ada, so it is known to work at least well enough to compile
itself.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Mon, Feb 17, 2003 at 03:26:31PM +0000, Matthew Wilcox wrote:
> On Mon, Feb 17, 2003 at 05:21:58PM +0200, Harri Haataja wrote:
> > If there's ada stuff and gnat in particular there, I hope removing
> > that won't take out the last ada system available. I believe it's
> > quite hard to get back.
> No danger of that -- it's built as part of the debian gcc-3.2 build,
> so there are substantially more recent compilers available.
So it'll be there in debian.

> gnat is written in Ada, so it is known to work at least well enough to
> compile itself.
.. if you have an Ada compiler :)

-- 
along with a metric assload of rebar -- Carl Jacobs
What's that in Imperial arseloads? -- Alistair J. R. Young


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On Mon, Feb 17, 2003 at 05:31:51PM +0200, Harri Haataja wrote:
> On Mon, Feb 17, 2003 at 03:26:31PM +0000, Matthew Wilcox wrote:
> > On Mon, Feb 17, 2003 at 05:21:58PM +0200, Harri Haataja wrote:
> > > If there's ada stuff and gnat in particular there, I hope removing
> > > that won't take out the last ada system available. I believe it's
> > > quite hard to get back.
> > No danger of that -- it's built as part of the debian gcc-3.2 build,
> > so there are substantially more recent compilers available.
> So it'll be there in debian.

Yup.  And it'll be there for anyone to use if they want to bootstrap their
own compiler.  You have to start bootstrapping from _somewhere_; you
seem to be suggesting that it's morally repugnant to start from debian's
gcc+gnat rather than some random gcc+gnat found on a project website..
I'm not sure I agree.

> > gnat is written in Ada, so it is known to work at least well enough to
> > compile itself.
> .. if you have an Ada compiler :)

Sure, but who doesn't?  ;-)  I even posted instructions in the form of
a shell script to debian-gcc last year on how to cross-bootstrap from
another architecture.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Mon, Feb 17, 2003 at 03:42:26PM +0000, Matthew Wilcox wrote:
> On Mon, Feb 17, 2003 at 05:31:51PM +0200, Harri Haataja wrote:
> > On Mon, Feb 17, 2003 at 03:26:31PM +0000, Matthew Wilcox wrote:
> > > On Mon, Feb 17, 2003 at 05:21:58PM +0200, Harri Haataja wrote:
> > > > If there's ada stuff and gnat in particular there, I hope
> > > > removing that won't take out the last ada system available. I
> > > > believe it's quite hard to get back.
> > > No danger of that -- it's built as part of the debian gcc-3.2
> > > build, so there are substantially more recent compilers available.
> > So it'll be there in debian.
> Yup.  And it'll be there for anyone to use if they want to bootstrap
> their own compiler.  You have to start bootstrapping from _somewhere_;
> you seem to be suggesting that it's morally repugnant to start from
> debian's gcc+gnat rather than some random gcc+gnat found on a project
> website..  I'm not sure I agree.

I hadn't looked. So this is just an old version. I have nothing against
removing old binaries unless someone wants a piece of history or it has
some other signifigance. Great.

> > > gnat is written in Ada, so it is known to work at least well
> > > enough to compile itself.
> > .. if you have an Ada compiler :)
> 
> Sure, but who doesn't?  ;-)  I even posted instructions in the form of
> a shell script to debian-gcc last year on how to cross-bootstrap from
> another architecture.

I don't remember where I would have wanted it some ages ago. Maybe
netbsd/sparc or something :) They hadn't bootstrapped it there yet.

Sorry about the mixup, somehow I didn't even remember there was a debian
already and that it's a separate project with their piles of software :)

-- 
Why is TV called a medium?
Because it's neither rare nor well done.
	-- .sig of Marco Rinck


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> CVSROOT:	/var/cvs
> Module name:	linux-2.5
> Changes by:	jejb	03/02/16 11:10:21
> 
> Modified files:
> 	arch/parisc/kernel: signal.c sys32.h 
> 	include/asm-parisc: signal.h 
> 
> Log message:
> More signal change fixes

Thanks for all the great work James!

Just to comment on this, we have incorrect sigcontext's from 64-bit kernels.
If you look at the usage of "HACK" you'll see that the 32-bit userspace 
gets some rather unusable 64-bit values in the sigcontext. I'm not sure how 
other arches fix this? Cut off the top 32 bits?

This item is on my personal todo list, but I haven't talked to anyone who has 
suggested a solution. I'm just a lowly GNU/Libc hacker, but if you suggest 
something I _will_ write it. 

c.



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On Mon, 2003-02-17 at 10:57, Carlos O'Donell wrote:
> > CVSROOT:	/var/cvs
> > Module name:	linux-2.5
> > Changes by:	jejb	03/02/16 11:10:21
> > 
> > Modified files:
> > 	arch/parisc/kernel: signal.c sys32.h 
> > 	include/asm-parisc: signal.h 
> > 
> > Log message:
> > More signal change fixes
> 
> Thanks for all the great work James!

You're welcome, but these were really just compile fixes.

> Just to comment on this, we have incorrect sigcontext's from 64-bit kernels.
> If you look at the usage of "HACK" you'll see that the 32-bit userspace 
> gets some rather unusable 64-bit values in the sigcontext. I'm not sure how 
> other arches fix this? Cut off the top 32 bits?
> 
> This item is on my personal todo list, but I haven't talked to anyone who has 
> suggested a solution. I'm just a lowly GNU/Libc hacker, but if you suggest 
> something I _will_ write it. 

In general, we should probably be relying more on the generic 32/64
compatibility layer recently introduced.  I suspect the best role model
for all of this is sparc64, since that's habitually run as a 64 bit
kernel with (mostly) 32 bit user space.

The HACK thing should continue to work OK as long as PA-RISC has no 64
bit user binary support, though.

James




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>-- Original Message --
>From: "Joel Soete" <jsoe0708@tiscali.be>
>To: parisc-linux@parisc-linux.org
>Subject: [parisc-linux] .config fo a N class?
>Date: Mon, 17 Feb 2003 12:42:54 +0100
>
>
>Hi all,
>
>I have the oportunity to test temporary a N class (N4000-55) dual processor.
>
>I grab the config file of the test-drive L model; apply it against current
>k-2.4.20-pa26 (just change 64 to 32 bits).
                            ^^^^^^^^^^^^^ My bad: I would have to remember
that hpux-11 have to be 64bits on L and N servers :?

> I install this kernel on a ext
>scsi disk and try to boot; unforunately it doesn't goes further than palo
>message:
>...
>a common symptom -- search the FAQ and ml ..."
>
>I try get a pim (from gsp TC); unfortunately empty (I mean all null values).
>
>The only report (on esiee) I found regarding this kind of server was running
>a 2.4.9 64 bits kernel.
>
>Can somebody help me to find the corresponding config file?
>

Well, for now I just boot with a dpkg kernel-image-2.4.19-64 (up) and still
have to see what is wrong with eth0:
eth0 Digital DS21143 Tulip rev 65 at 0x80 ... irq 128

Is there known problem with this type of NIC?

Next step would be to install a gcc-64 to recompile the kernel 2.4.20-pa27
and have a new look on this eth0.

Joel



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> > This item is on my personal todo list, but I haven't talked to anyone who has 
> > suggested a solution. I'm just a lowly GNU/Libc hacker, but if you suggest 
> > something I _will_ write it. 
> 
> In general, we should probably be relying more on the generic 32/64
> compatibility layer recently introduced.  I suspect the best role model
> for all of this is sparc64, since that's habitually run as a 64 bit
> kernel with (mostly) 32 bit user space.

The sparc64 code is quite frightening, but I will look to it for a role
model.
 
> The HACK thing should continue to work OK as long as PA-RISC has no 64
> bit user binary support, though.

Yeah, it's OK until I attempt to write make/get/set/swap/context support
in libc :)

c.



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On Mon, Feb 17, 2003 at 06:51:01PM +0100, Joel Soete wrote:
> >I grab the config file of the test-drive L model; apply it against current
> >k-2.4.20-pa26 (just change 64 to 32 bits).
>                             ^^^^^^^^^^^^^ My bad: I would have to remember
> that hpux-11 have to be 64bits on L and N servers :?

right. But L-class also only supports 64-bit.
And you want to disable CONFIG_SMP for N-class and L3000.

> Well, for now I just boot with a dpkg kernel-image-2.4.19-64 (up) and still
> have to see what is wrong with eth0:

You were not very clear about the symptom.
And we need a slightly more accurate description
of the kernel-image version number.

But this might help you anyway
| > cvs log driver/nets/tulip/media.c
...
| revision 1.14
| 
| date: 2002/10/14 23:34:02;  author: grundler;  state: Exp;  lines: +13 -13
|
| 2.4.19-pa22 Fix tulip phy reset/init
| DP83840A.pdf and lxt971d.pdf both require polling
| the reset bit (bit 15) in mdio control register to
| determine when a reset has completed. Then the
| "init" sequence can be sent.


> eth0 Digital DS21143 Tulip rev 65 at 0x80 ... irq 128
> 
> Is there known problem with this type of NIC?

yes - there was. But built-in should work. add-on cards had problems.

> Next step would be to install a gcc-64 to recompile the kernel 2.4.20-pa27
> and have a new look on this eth0.

yes - good plan

grant


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parisc,

Works in 2.4.x, thinking of moving part of the cluster to 2.5, but I like
to play with swap over NFS.

root@node01:/etc# /sbin/losetup /dev/loop0 /swapfile
ioctl: LOOP_SET_FD: Inappropriate ioctl for device
root@node01:/etc# uname -a
Linux node01 2.5.59-pa2 #2 Thu Jan 23 00:49:22 EST 2003 parisc unknown
unknown GNU/Linux

Do I need newer tools for playing with 2.5.x on HPPA?
Loopback is compiled into the kernel, no modules, and I can produce the
.config if you would like to look :)

Help is much appreciated. I've trolled a few places but no mention of
this particular problem.

c.



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On Mon, Feb 17, 2003 at 07:52:30PM -0700, ext Grant Grundler wrote:
> On Mon, Feb 17, 2003 at 06:51:01PM +0100, Joel Soete wrote:

> > eth0 Digital DS21143 Tulip rev 65 at 0x80 ... irq 128
> > Is there known problem with this type of NIC?

> yes - there was. But built-in should work. add-on cards had problems.

Hey, that's the same revision as the one I tried in a C240 ... 
A3738-60001 ANA-6911A/AUI? A combo card with 10/100bT, 10b2, and AUI? 

Come to think of it, is it at all reasonable to assume that the same chip 
revision would be likely to mean the cards are similar?


Anyway, mine still doesn't work as of today, but I haven't worked on it 
for a while... oh well, at least on HP-UX it'd be supported on an N, 
right?


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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On Tue, Feb 18, 2003 at 10:44:42AM +0200, Nahkola Mikko wrote:
> Come to think of it, is it at all reasonable to assume that the same chip 
> revision would be likely to mean the cards are similar?

hmm..I don't know that.

Use PCI_SUBSYSTEM_VENDOR_ID/PCI_SUBSYSTEM_ID to determine which card
it is exactly.

> Anyway, mine still doesn't work as of today, but I haven't worked on it 
> for a while... oh well, at least on HP-UX it'd be supported on an N, 
> right?

definitely.

grant


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>-- Original Message --
>Date: Mon, 17 Feb 2003 19:52:30 -0700
>To: Joel Soete <jsoe0708@tiscali.be>
>Cc: parisc-linux@parisc-linux.org
>Subject: Re: [parisc-linux] .config fo a N class?
>From: grundler@dsl2.external.hp.com (Grant Grundler)
>
>
>On Mon, Feb 17, 2003 at 06:51:01PM +0100, Joel Soete wrote:
>> >I grab the config file of the test-drive L model; apply it against current
>> >k-2.4.20-pa26 (just change 64 to 32 bits).
>>                             ^^^^^^^^^^^^^ My bad: I would have to remember
>> that hpux-11 have to be 64bits on L and N servers :?
>
>right. But L-class also only supports 64-bit.
>And you want to disable CONFIG_SMP for N-class and L3000.
>
>> Well, for now I just boot with a dpkg kernel-image-2.4.19-64 (up) and
still
>> have to see what is wrong with eth0:
>
>You were not very clear about the symptom.

Yes, sorry: my first goal was to advise that I reach to boot the N and will
go later examine this pb.

IIRC to start up this box I first unplug the NIC cable to avoid network
pb.
After that I changed the config file to restart the built-in NIC which didn't
come up? A strange thing that I noticed was that there was not hard led
lighted.

It should be because the switch disable temporarely the port after the cut
of the link? I will check further...

>And we need a slightly more accurate description
>of the kernel-image version number.
>
it is the image from kernel-image-2.4.19-64_22.2_hppa.deb

>But this might help you anyway
>| > cvs log driver/nets/tulip/media.c
>...
>| revision 1.14
>|
>| date: 2002/10/14 23:34:02;  author: grundler;  state: Exp;  lines: +13
>-13
>|
>| 2.4.19-pa22 Fix tulip phy reset/init
>| DP83840A.pdf and lxt971d.pdf both require polling
>| the reset bit (bit 15) in mdio control register to
>| determine when a reset has completed. Then the
>| "init" sequence can be sent.
>
I will check if I can still find back some sources
>
>> eth0 Digital DS21143 Tulip rev 65 at 0x80 ... irq 128
>>
>> Is there known problem with this type of NIC?
>
>yes - there was. But built-in should work. add-on cards had problems.
>
>> Next step would be to install a gcc-64 to recompile the kernel 2.4.20-pa27
>> and have a new look on this eth0.
>
>yes - good plan
>
Thanks again for your kind attention,
    Joel



---------------------------------
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Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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Subject: RE: [parisc-linux] Issues with seteuid()?
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Hi all,

Here is a 'small' test case which reproduce the problem on a sarge (ie testing)
debian (gcc-3.0_3.0.4-12; libc6_2.2.5-14.3) running very last kernel 2.4.20-pa23:

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

/* getpid(), geteuid()  */
#include <sys/types.h>
#include <unistd.h>

/* setgroups() */
#include <grp.h>

/* mkdir() */
#include <sys/stat.h>
#define MAXPATHLEN 256

/* waitpid() */
#include <sys/wait.h>


char *effectiveUser="proxy";
uid_t effectiveUserID=13;
gid_t effectiveGroupID=13;

/* Define if you have the setgroups function.  */
#define HAVE_SETGROUPS 1

/*
 * Yay! Another Linux brokenness.  Its not good enough to know that
 * setresuid() exists, because RedHat 5.0 declare setresuid() but
 * doesn't implement it.
 */
#define HAVE_SETRESUID 1

#undef HAVE_SETRESUID
/*
 */

/*
man setresuid NOTES:
       Under  HP-UX  and  FreeBSD the prototype is found in <unistd.h>. 
Under
       Linux there is so far no include file giving the prototype - this
is  a
       glibc bug. Programs using this system call must add the prototype
them-
       selves.
*/
#ifdef HAVE_SETRESUID
int
setresuid(uid_t ruid, uid_t euid, uid_t suid);
#endif

/* Define if you have the seteuid function.  */
#define HAVE_SETEUID 1

/*
 * xstrerror() - strerror() wrapper
 */
const char *
xstrerror(void)
{
    static char xstrerror_buf[BUFSIZ];
    static char strerror_buf[BUFSIZ];

    snprintf(strerror_buf, BUFSIZ, "%s", strerror(errno));
   
    if (strerror_buf) 
	snprintf(xstrerror_buf, BUFSIZ, "(%d) %s", errno, strerror_buf);
    else
        snprintf(xstrerror_buf, BUFSIZ, "(%d) Unknown", errno); 
    return xstrerror_buf;
}

/* leave a privilegied section. (Give up any privilegies)
 * Routines that need privilegies can rap themselves in enter_suid()
 * and leave_suid()
 * To give upp all posibilites to gain privilegies use no_suid()
 */
void
leave_suid(void)
{
    fprintf(stderr, "leave_suid: PID %d called\n", (int) getpid());
    if (geteuid() != 0)
	return;
    /* Started as a root, check suid option */
    if (effectiveUser == NULL)
	return;
#if HAVE_SETGROUPS
    setgroups(1, &effectiveGroupID);
#endif
    if (setgid(effectiveGroupID) < 0)
	fprintf(stderr, "ALERT: setgid: %s\n", xstrerror());
    fprintf(stderr, "leave_suid: PID %d giving up root, becoming '%s'\n",
(int) getpid(), effectiveUser);
#if HAVE_SETRESUID
    if (setresuid(effectiveUserID, effectiveUserID, 0) < 0)
	fprintf(stderr, "ALERT: setresuid: %s\n", xstrerror());
#elif HAVE_SETEUID
    if (seteuid(effectiveUserID) < 0)
	fprintf(stderr, "ALERT: seteuid: %s\n", xstrerror());
#else
    if (setuid(effectiveUserID) < 0)
	fprintf(stderr, "ALERT: setuid: %s\n", xstrerror());
#endif
}

static void
setEffectiveUser(void)
{
    leave_suid();		/* Run as non privilegied user */
    if (geteuid() == 0) {
	fprintf(stderr, "Squid is not safe to run as root!  If you must\n");
	fprintf(stderr, "start Squid as root, then you must configure\n");
	fprintf(stderr, "it to run as a non-priveledged user with the\n");
	fprintf(stderr, "'cache_effective_user' option in the config file.\n");
	fprintf(stderr, "Don't run Squid as root, set 'cache_effective_user'!\n");
        abort();
    }
}

static int
storeUfsDirCreateDirectory(const char *path)
{
    int created = 0;

    if (0 != mkdir(path, 0755)) {
	fprintf(stderr,	"Failed to make swai directory %s: %s\n",
	    path, xstrerror());
    }
    return created;
}

static void
storeUfsDirCreateSwapSubDirs(char * Path)
{
    int i, k;
    static char name[MAXPATHLEN];
    for (i = 0; i < 16; i++) {
	snprintf(name, MAXPATHLEN, "%s/%02X", Path, i);
        storeUfsDirCreateDirectory(name);
	fprintf(stderr, "Making directories in %s\n", name);
	for (k = 0; k < 32; k++) {
	    snprintf(name, MAXPATHLEN, "%s/%02X/%02X", Path, i, k);
            storeUfsDirCreateDirectory(name);
	}
    }
}


static void
storeUfsDirNewfs(char * Path)
{
    fprintf(stderr, "Creating swap space in %s\n", Path);
    storeUfsDirCreateSwapSubDirs(Path);
}

void
storeCreateSwapDirectories(void)
{
    int i;
    pid_t pid;
    int status;
    for (i = 0; i < 1; i++) {
	if (fork())
	    continue;
        storeUfsDirNewfs("/var/spool/squid");
	exit(0);
    }
    do {
	pid = waitpid(-1, &status, 0);
    } while (pid > 0 || (pid < 0 && errno == EINTR));
}


int
main(int argc, char **argv)
{
    /* only opt_create_swap_dirs */

    setEffectiveUser();
    fprintf(stderr, "Creating Swap Directories\n");
    storeCreateSwapDirectories();

    return 0;
}

(rebuild from simplified parts of squid-2.5 src)

compile with: gcc -O 2 -Wall -D_REENTRANT file.c -o ct

[create a user and a group named proxy with id 13 both]

compile as it is it, it will failled immediately with 'Segmentation fault'

edit sources to comment out '#undef HAVE_SETRESUID' line, recompile with
same option and it would fork without problem (even thought it will failled
to actually create dir)

hth,
    Joel

PS: this test case doesn't present the same pb on an unstable debian (ie
compile with gcc-3.2_3.2.2-0pre6 & libc6_2.3.1-10). I try this on the same
kernel running each the two different install.



>-- Original Message --
>From: Luigi Gangitano <luigi@debian.org>
>To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] Issues with seteuid()?
>Date: 12 Jan 2003 16:49:29 +0100
>
>
>
>Hi all,
>I'm the Debian package maintainer for Squid (HTTP Proxy). I received the
>forwarded bug report describing issues in seteuid() on palinux. While
>using seteuid(), forked processes terminate with SEGV.
>
>Is it a known problem?
>
>Thanks.
>
>L
>
>Please CC: me, I'm not subscribed to this list.
>
>-----Forwarded Message-----
>> This small mail to mentionned that I reach to make squid operational on
>> a linux-2.4.20-pa17 thanks to the following tips:
>> 
>> in debian rules replace statement
>>     ac_cv_func_setresuid=no \
>> by
>>     ac_cv_func_setresuid=yes \
>> 
>> so that function leave_suid() [into src/tools.c] will use setresuid()
in
>> place of seteuid() before launch fork().
>> 
>> Is it a know problem on palinux?
>> 
>> Greetings,
>>     Joel
>> 
>> PS: Luigi, I also test it on 2.5.1 and it works also for parisc linux
(testing
>> config). HTH
>
>-- 
> Luigi Gangitano -- <luigi@debian.org> -- <gangitano@lugroma3.org>
> GPG: 1024D/924C0C26: 12F8 9C03 89D3 DB4A 9972  C24A F19B A618 924C 0C26
>
>Attachment: signature.asc
>


*********************************************
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Subject: [parisc-linux] Help, help testing Debian hppa unusable??
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Xref: news.gmane.org gmane.linux.ports.parisc:17741

Hi all,

I just try to install rpm on my testing Debian hppa and
...
Unpacking librpm4 (from .../librpm4_4.0.4-11_hppa.deb) ...
Selecting previously deselected package rpm.
Unpacking rpm (from .../archives/rpm_4.0.4-11_hppa.deb) ...
Setting up librpm4 (4.0.4-11) ...

Setting up rpm (4.0.4-11) ...
/bin/sh: /lib/ld.so.1: version `GLIBC_PRIVATE' not found (required by /lib/libc.so.6)
dpkg: error processing rpm (--configure):
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 rpm
E: Sub-process /usr/bin/dpkg returned an error code (1)
root@fw01:/Sources/Debian4fw01# cd ..         

I believe at this moment that I was in chroot :(

root@fw01:/Sources# exit
logout
jso@fw01:~$ dpkg -l
dpkg: /lib/ld.so.1: version `GLIBC_PRIVATE' not found (required by /lib/libc.so.6)
jso@fw01:~$ su -
su: /lib/ld.so.1: version `GLIBC_PRIVATE' not found (required by /lib/libc.so.6)
jso@fw01:~$ ll /lib/ld.so.1
-bash: ll: command not found
jso@fw01:~$ ls -l /lib/ld.so.1
ls: /lib/ld.so.1: version `GLIBC_PRIVATE' not found (required by /lib/libc.so.6)
jso@fw01:~$ 

All idea is well come to recover this system.

Thanks a lot in advance,
    Joel

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Carlos O'Donell wrote:
> 
> parisc,
> 
> Works in 2.4.x, thinking of moving part of the cluster to 2.5, but I like
> to play with swap over NFS.
> 
> root@node01:/etc# /sbin/losetup /dev/loop0 /swapfile
> ioctl: LOOP_SET_FD: Inappropriate ioctl for device
> root@node01:/etc# uname -a
> Linux node01 2.5.59-pa2 #2 Thu Jan 23 00:49:22 EST 2003 parisc unknown
> unknown GNU/Linux
> 
> Do I need newer tools for playing with 2.5.x on HPPA?
> Loopback is compiled into the kernel, no modules, and I can produce the
> .config if you would like to look :)

I recently started to play around with 2.5.60 kernels. Up to now, I was not
successful in building a working kernel. Especially if the loop device was
compiled in, the kernel panicked in the following device driver (first the
network device, after removing the network device it panicked when
initializing SCSI). Without the loop device, the kernel came up to init, and
panicked then.

I was using gcc (GCC) 3.3-hammer 20030123 from CVS, and this is probably the
reason why my kernels fail. Maybe, you should try several different
compilers to build the kernel. 

If someone has a working for .config for 2.5.60, I would like to try this
configuration with a slightly newer compiler (gcc (GCC) 3.3-hammer 20030205)


Berthold




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I've just installed the Debian 3.0 distro on my B2000. I had the usual
problems with consoles and the like. I've thus far been unable to get the
framebuffer device to work. The only docs I've found on it date back to
1999.


BUT, I did download source code for HP's Intel linux visualize driver. I
can't get it to compile, the assembler tells me there's an invalid opcode
(??) in the .o file. I'm not really a programmer, so I'm hoping somebody out
there can take a look at what they're doing and fix it. The files are at

ftp://ftp.hp.com/pub/ccd/soar2sdd/wk207/wk207en/hpgraphics_kernel-1.5.3-1.sr
c.rpm
and
ftp://ftp.hp.com/pub/ccd/soar2sdd/wk207/wk207en/hpgraphics_kernel-1.5.3-1.sr
c.rpm


SO, Any help either with compiling the driver or with configuring the
framebuffer would be appreciated

Dan Baker
Storage Admin
Electric Lightwave, Inc.



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On Wed, Feb 19, 2003 at 05:42:29PM -0800, Dan Baker wrote:
> BUT, I did download source code for HP's Intel linux visualize driver. I
> can't get it to compile, the assembler tells me there's an invalid opcode
> (??) in the .o file. I'm not really a programmer, so I'm hoping somebody out
> there can take a look at what they're doing and fix it.

Well, it's not that easy even for someone who can read C.

First, some bad news:
o x86 version of the card has extra VGA cruft+BIOS.
  PA-Risc version uses STI firmware for initialization.
o IIRC, the X11 server (or maybe just gfx card driver?) is a custom,
  closed source code.  Hopefully I'm wrong and someone will correct me.
o I'll guess that many (most of the?) interesting bits are in the XF86
  hpgfx driver module. I'm assuming one exists.

Good news: 3d acceleration for x86 cards uses the same RISC engines
as the parisc cards.

Several years ago I asked someone in the HP gfx group if they
could port the HPUX driver to parisc-linux but our port wasn't
ready then (I think it is now). The gfx driver interacts *alot*
with the rest of the kernel *and* the X11 server.
The above is what I remember from conversations with people.

> The files are at
> 
> ftp://ftp.hp.com/pub/ccd/soar2sdd/wk207/wk207en/hpgraphics_kernel-1.5.3-1.sr
> c.rpm
> and
> ftp://ftp.hp.com/pub/ccd/soar2sdd/wk207/wk207en/hpgraphics_kernel-1.5.3-1.sr
> c.rpm

uhm...'cuse me, but aren't those the same?

hth
grant


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Subject: [parisc-linux] [hppa-linux, gcc-3.2 regression] ICE when optimizing inline code
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>Submitter-Id:	net
>Originator:	Randolph Chung
>Organization:	Debian
>Confidential:	no
>Synopsis:	[hppa-linux, gcc-3.2 regression] ICE when optimizing inline code
>Severity:	serious
>Priority:	medium
>Category:	optimization
>Class:		ice-on-legal-code
>Release:	3.2.3 20030210 (Debian prerelease) (Debian testing/unstable)
>Environment:
System: Linux legolas 2.4.20-pa25 #115 Sun Feb 9 20:54:18 PST 2003 parisc unknown unknown GNU/Linux
Architecture: parisc

	<machine, os, target, libraries (multiple lines)>
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,pascal,objc,ada --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.2 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-clocale=gnu --enable-objc-gc hppa-linux
>Description:
see below

code works with gcc-3.0 and gcc-3.3 snapshot
also works with gcc-3.2 with -O1

>How-To-Repeat:
-------8< cut here 8<---------
inline int fixfloor (long x) { if (x >= 0) return (x >> 16); else return ~((~x) >> 16); }
inline int fixtoi (long x) { return fixfloor(x) + ((x & 0x8000) >> 15); }
int foo(long x, long y) { return fixtoi(x*y); }
-------8< cut here 8<---------

legolas% gcc-3.2 -O2 -c bug.i
bug.i: In function `foo':
bug.i:3: internal error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

>Fix:
	unknown


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: RE: [parisc-linux] Solved [was: Help, help testing Debian hppa unusable??]
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Hi all,
>
>I just try to install rpm on my testing Debian hppa and
>...
>Unpacking librpm4 (from .../librpm4_4.0.4-11_hppa.deb) ...
>Selecting previously deselected package rpm.
>Unpacking rpm (from .../archives/rpm_4.0.4-11_hppa.deb) ...
>Setting up librpm4 (4.0.4-11) ...
>
>Setting up rpm (4.0.4-11) ...
>/bin/sh: /lib/ld.so.1: version `GLIBC_PRIVATE' not found (required by /lib/libc.so.6)
>dpkg: error processing rpm (--configure):
> subprocess post-installation script returned error exit status 1
>Errors were encountered while processing:
> rpm
>E: Sub-process /usr/bin/dpkg returned an error code (1)
>root@fw01:/Sources/Debian4fw01# cd ..
>
>I believe at this moment that I was in chroot :(
>
>root@fw01:/Sources# exit
>logout
>jso@fw01:~$ dpkg -l
>dpkg: /lib/ld.so.1: version `GLIBC_PRIVATE' not found (required by /lib/libc.so.6)
>jso@fw01:~$ su -
>su: /lib/ld.so.1: version `GLIBC_PRIVATE' not found (required by /lib/libc.so.6)
>jso@fw01:~$ ll /lib/ld.so.1
>-bash: ll: command not found
>jso@fw01:~$ ls -l /lib/ld.so.1
>ls: /lib/ld.so.1: version `GLIBC_PRIVATE' not found (required by /lib/libc.so.6)
>jso@fw01:~$
>

The error IMHO stand in ldconfig:

I temporary copy libc-2.3.1.so into /lib of this system.

Then when I install librpm (with rpm) the post install do just a ldconfig:
logical.

What I found erronious is that ldconfig changed on its own (without querying
what todo) the link /lib/libc.so.6 -> libc-2.2.5.so (as install by libc6
dpkg) to -> libc-2.3.1.so??

The solution was so to reboot with the original install cd; went into starting
shell menu; mkdir /mnt/Mydir to mount /dev/md2 (my root meta device); reset
the link libc.so.6 -> libc-2.2.5.so into /mnt/Mydir/lib and remove libc-2.3.1.so;
chroot /mnt/Mydir to redo ldconfig and finaly reboot after unmount of /mnt/Mydir.

Cheers,
    Joel



---------------------------------
Vous surfez avec une ligne classique ?
Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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Subject: [parisc-linux] LIVE FROM WALL STREET: TGYC Announces Revised Revenues and Earnings... aklik
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<p>If you bought into our last recommendation (CIMG) early enough you had an excellent opportunity to make substantial gains (from .90 to 1.65 in just the first day).  Now is your chance to do the same with our newest pick: TGYC.  To find out more go to <a href="http://www.sorensonandassociates.com">Live From the Street</a>.</p>
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&nbsp;

ieedhqvbypcwfqltwlmjkoraflcvaqarpeo


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Subject: Re: [parisc-linux] .config fo a N class?
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>-- Original Message --
>From: "Joel Soete" <jsoe0708@tiscali.be>
>Subject: Re: [parisc-linux] .config fo a N class?
>To: grundler@dsl2.external.hp.com
>Cc: parisc-linux@parisc-linux.org
>Date: Wed, 19 Feb 2003 09:19:49 +0100
>
>>
>>On Mon, Feb 17, 2003 at 06:51:01PM +0100, Joel Soete wrote:
>>> >I grab the config file of the test-drive L model; apply it against current
>>> >k-2.4.20-pa26 (just change 64 to 32 bits).
>>>                             ^^^^^^^^^^^^^ My bad: I would have to remember
>>> that hpux-11 have to be 64bits on L and N servers :?
>>
>>right. But L-class also only supports 64-bit.
>>And you want to disable CONFIG_SMP for N-class and L3000.
>>
>>> Well, for now I just boot with a dpkg kernel-image-2.4.19-64 (up) and
>still
>>> have to see what is wrong with eth0:
>>
>>You were not very clear about the symptom.
>
>Yes, sorry: my first goal was to advise that I reach to boot the N and will
>go later examine this pb.
>
>IIRC to start up this box I first unplug the NIC cable to avoid network
>pb.
>After that I changed the config file to restart the built-in NIC which didn't
>come up? A strange thing that I noticed was that there was not hard led
>lighted.
>
>It should be because the switch disable temporarely the port after the cut
>of the link? I will check further...
>
>>And we need a slightly more accurate description
>>of the kernel-image version number.
>>
>it is the image from kernel-image-2.4.19-64_22.2_hppa.deb
>
>>But this might help you anyway
>>| > cvs log driver/nets/tulip/media.c
>>...
>>| revision 1.14
>>|
>>| date: 2002/10/14 23:34:02;  author: grundler;  state: Exp;  lines: +13
>>-13
>>|
>>| 2.4.19-pa22 Fix tulip phy reset/init
>>| DP83840A.pdf and lxt971d.pdf both require polling
>>| the reset bit (bit 15) in mdio control register to
>>| determine when a reset has completed. Then the
>>| "init" sequence can be sent.
>>
>I will check if I can still find back some sources
>>
>>> eth0 Digital DS21143 Tulip rev 65 at 0x80 ... irq 128
>>>
>>> Is there known problem with this type of NIC?
>>
>>yes - there was. But built-in should work. add-on cards had problems.
>>
>>> Next step would be to install a gcc-64 to recompile the kernel 2.4.20-pa27
>>> and have a new look on this eth0.
>>
>>yes - good plan
>>
Yes it was the best, here is my dmesg (get through NIC):

Linux version 2.4.20-pa27-64 (root@palx2000) (gcc version 3.2.3 20030208
(prerelease)) #1 Wed Feb 19 18:05:47 CET 2003
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00005d30 00000491 00000000 00000002 27988e5d 100000f1 00000008 000000b2
000000b2
vers  00000301
CPUID vers 18 rev 11 (0x0000024b)
capabilities 0x1
model 9000/800/N4000-55
Total Memory: 2048 Mb
pagetable_init
On node 0 totalpages: 524288
zone(0): 524288 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=3/boot/vmlinux-2.4.20-pa27-64
Console: colour dummy device 160x64
Calibrating delay loop... 1097.72 BogoMIPS
Memory: 2043596k available
Dentry cache hash table entries: 131072 (order: 9, 2097152 bytes)
Inode cache hash table entries: 131072 (order: 9, 2097152 bytes)
Mount-cache hash table entries: 32768 (order: 7, 524288 bytes)
Buffer-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Page-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Searching for devices...
Found devices:
1. Memory (1) at 0xfffffffffedc0000 [192], versions 0x90, 0x0, 0x9
2. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed00000 [0], versions
0x803, 0x0, 0xc
3. Elroy PCI Bridge (13) at 0xffffffffbffe0000 [0/0], versions 0x782, 0x0,
0xa
4. Elroy PCI Bridge (13) at 0xffffffffbffe2000 [0/1], versions 0x782, 0x0,
0xa
5. Elroy PCI Bridge (13) at 0xffffffffbffe4000 [0/2], versions 0x782, 0x0,
0xa
6. Elroy PCI Bridge (13) at 0xffffffffbffe8000 [0/4], versions 0x782, 0x0,
0xa
7. Elroy PCI Bridge (13) at 0xffffffffbffea000 [0/5], versions 0x782, 0x0,
0xa
8. Elroy PCI Bridge (13) at 0xffffffffbfff0000 [0/8], versions 0x782, 0x0,
0xa
9. Elroy PCI Bridge (13) at 0xffffffffbfff4000 [0/10], versions 0x782, 0x0,
0xa
10. Elroy PCI Bridge (13) at 0xffffffffbfff8000 [0/12], versions 0x782, 0x0,
0xa
11. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed40000 [1], versions
0x803, 0x0, 0xc
12. Elroy PCI Bridge (13) at 0xfffffffffece0000 [1/0], versions 0x782, 0x0,
0xa
13. Elroy PCI Bridge (13) at 0xfffffffffece4000 [1/2], versions 0x782, 0x0,
0xa
14. Elroy PCI Bridge (13) at 0xfffffffffece8000 [1/4], versions 0x782, 0x0,
0xa
15. Elroy PCI Bridge (13) at 0xfffffffffecf0000 [1/8], versions 0x782, 0x0,
0xa
16. Elroy PCI Bridge (13) at 0xfffffffffecf4000 [1/10], versions 0x782, 0x0,
0xa
17. Elroy PCI Bridge (13) at 0xfffffffffecf8000 [1/12], versions 0x782, 0x0,
0xa
18. DEW BC Runway Port (7) at 0xfffffffffed24000 [36], versions 0x584, 0x0,
0xc
19. Unknown machine (0) at 0xfffffffffed25000 [37], versions 0x5d3, 0x0,
0x0
20. DEW BC Runway Port (7) at 0xfffffffffed2c000 [44], versions 0x584, 0x0,
0xc
21. Unknown machine (0) at 0xfffffffffed2d000 [45], versions 0x5d3, 0x0,
0x0
CONFIG_SMP=n  ignoring additional CPUs
CPU(s): 1 x PA8600 (PCX-W+) at 550.000000 MHz
SBA found Ike rev 2 at 0xfffffffffed00000
SBA found Ike rev 2 at 0xfffffffffed40000
lba version TR4.0 (0x5) found at 0xffffffffbffe0000
lba range[2] : ignoring GMMIO (0xfffffff004000000)
lba version TR4.0 (0x5) found at 0xffffffffbffe2000
lba range[2] : ignoring GMMIO (0xfffffff084000000)
lba version TR4.0 (0x5) found at 0xffffffffbffe4000
NOTICE: PCI bus reset still asserted! (clearing)
NOTICE: Enabling PCI Arbitration
lba range[2] : ignoring GMMIO (0xfffffff104000000)
lba version TR4.0 (0x5) found at 0xffffffffbffe8000
lba range[2] : ignoring GMMIO (0xfffffff204000000)
lba version TR4.0 (0x5) found at 0xffffffffbffea000
lba range[2] : ignoring GMMIO (0xfffffff284000000)
lba version TR4.0 (0x5) found at 0xffffffffbfff0000
NOTICE: PCI bus reset still asserted! (clearing)
NOTICE: Enabling PCI Arbitration
lba range[2] : ignoring GMMIO (0xfffffff404000000)
lba version TR4.0 (0x5) found at 0xffffffffbfff4000
NOTICE: PCI bus reset still asserted! (clearing)
NOTICE: Enabling PCI Arbitration
lba range[2] : ignoring GMMIO (0xfffffff504000000)
lba version TR4.0 (0x5) found at 0xffffffffbfff8000
NOTICE: PCI bus reset still asserted! (clearing)
NOTICE: Enabling PCI Arbitration
lba range[2] : ignoring GMMIO (0xfffffff604000000)
lba version TR4.0 (0x5) found at 0xfffffffffece0000
NOTICE: PCI bus reset still asserted! (clearing)
NOTICE: Enabling PCI Arbitration
lba range[2] : ignoring GMMIO (0xfffffff804000000)
lba version TR4.0 (0x5) found at 0xfffffffffece4000
NOTICE: PCI bus reset still asserted! (clearing)
NOTICE: Enabling PCI Arbitration
lba range[2] : ignoring GMMIO (0xfffffff904000000)
lba version TR4.0 (0x5) found at 0xfffffffffece8000
NOTICE: PCI bus reset still asserted! (clearing)
NOTICE: Enabling PCI Arbitration
lba range[2] : ignoring GMMIO (0xfffffffa04000000)
lba version TR4.0 (0x5) found at 0xfffffffffecf0000
NOTICE: PCI bus reset still asserted! (clearing)
NOTICE: Enabling PCI Arbitration
lba range[2] : ignoring GMMIO (0xfffffffc04000000)
lba version TR4.0 (0x5) found at 0xfffffffffecf4000
lba range[2] : ignoring GMMIO (0xfffffffd04000000)
lba version TR4.0 (0x5) found at 0xfffffffffecf8000
lba range[2] : ignoring GMMIO (0xfffffffe04000000)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch support not available.
Performance monitoring counters enabled for Unknown machine
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
STI GSC/PCI graphics driver version 0.9
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI
enabled
ttyS00 at iomem 0xffffffff80000000 (irq = 132) is a 16550A
ttyS01 at iomem 0xffffffff80000008 (irq = 132) is a 16450
ttyS02 at iomem 0xffffffff80000010 (irq = 132) is a 16550A
ttyS03 at iomem 0xffffffff80000038 (irq = 132) is a 16550A
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre12 (Aug 9, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 65 at 0x80, 00:30:6E:1C:B2:0B, IRQ 128.
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.
tulip1:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth1: Digital DS21143 Tulip rev 65 at 0x40000, 00:30:6E:21:14:B4, IRQ 384.
SCSI subsystem driver Revision: 1.00
sym53c8xx: at PCI bus 0, device 2, function 0
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 2, function 1
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 1, function 0
sym53c8xx: 53c895 detected 
sym53c875-0: rev 0x37 on pci bus 0 device 2 function 0 irq 130
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-1: rev 0x37 on pci bus 0 device 2 function 1 irq 131
sym53c875-1: ID 7, Fast-20, Parity Checking
sym53c895-2: rev 0x1 on pci bus 0 device 1 function 0 irq 129
sym53c895-2: ID 7, Fast-20, Parity Checking
sym53c895-2: SCSI bus mode change from 80 to 80.
scsi0 : sym53c8xx-1.7.3c-20010512
scsi1 : sym53c8xx-1.7.3c-20010512
scsi2 : sym53c8xx-1.7.3c-20010512
blk: queue 000000008f952428, I/O limit 4095Mb (mask 0xffffffff)
  Vendor: SEAGATE   Model: ST34371N          Rev: HPM4
  Type:   Direct-Access                      ANSI SCSI revision: 02
blk: queue 000000008f952628, I/O limit 4095Mb (mask 0xffffffff)
Attached scsi disk sda at scsi2, channel 0, id 4, lun 0
sym53c895-2-<4,*>: FAST-20 SCSI 20.0 MB/s (50.0 ns, offset 15)
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 >
STI GSC/PCI graphics driver version 0.9
BUG: Skipping previously registered driver: sti (native)
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :  2542.400 MB/sec
   8regs_prefetch:  1948.800 MB/sec
   32regs    :  2065.600 MB/sec
   32regs_prefetch:  1938.400 MB/sec
raid5: using function: 8regs (2542.400 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 16384 buckets, 128Kbytes
TCP: Hash tables configured (established 262144 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 314k freed
Adding Swap: 123680k swap-space (priority -1)

I will now build another Debian unstable disk :)

Cheers,
    Joel


---------------------------------
Vous surfez avec une ligne classique ?
Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Solved [was: Help, help testing Debian hppa unusable??]
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> I temporary copy libc-2.3.1.so into /lib of this system.

Eep, that is a *BAD* idea...

> What I found erronious is that ldconfig changed on its own (without querying
> what todo) the link /lib/libc.so.6 -> libc-2.2.5.so (as install by libc6
> dpkg) to -> libc-2.3.1.so??

This is correct behavior, ldconfig creates a symlink between the SONAME
of a library to the library itself. This is documented in the ldconfig
manpage.....

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: "Dan Baker" <dan_baker@eli.net>
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Subject: RE: [parisc-linux] X problems...
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the other driver is at
ftp://ftp.hp.com/pub/ccd/soar2sdd/wk259/wk259mu/hpgraphics_kernel-1.5.13-1.s
rc.rpm

Sorry

Dan Baker

-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Grant
Grundler
Sent: Wednesday, February 19, 2003 9:15 PM
To: Dan Baker
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] X problems...


On Wed, Feb 19, 2003 at 05:42:29PM -0800, Dan Baker wrote:
> BUT, I did download source code for HP's Intel linux visualize driver. I
> can't get it to compile, the assembler tells me there's an invalid opcode
> (??) in the .o file. I'm not really a programmer, so I'm hoping somebody
out
> there can take a look at what they're doing and fix it.

Well, it's not that easy even for someone who can read C.

First, some bad news:
o x86 version of the card has extra VGA cruft+BIOS.
  PA-Risc version uses STI firmware for initialization.
o IIRC, the X11 server (or maybe just gfx card driver?) is a custom,
  closed source code.  Hopefully I'm wrong and someone will correct me.
o I'll guess that many (most of the?) interesting bits are in the XF86
  hpgfx driver module. I'm assuming one exists.

Good news: 3d acceleration for x86 cards uses the same RISC engines
as the parisc cards.

Several years ago I asked someone in the HP gfx group if they
could port the HPUX driver to parisc-linux but our port wasn't
ready then (I think it is now). The gfx driver interacts *alot*
with the rest of the kernel *and* the X11 server.
The above is what I remember from conversations with people.

> The files are at
>
>
ftp://ftp.hp.com/pub/ccd/soar2sdd/wk207/wk207en/hpgraphics_kernel-1.5.3-1.sr
> c.rpm
> and
>
ftp://ftp.hp.com/pub/ccd/soar2sdd/wk207/wk207en/hpgraphics_kernel-1.5.3-1.sr
> c.rpm

uhm...'cuse me, but aren't those the same?

hth
grant
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    Hello list, long time no talk here.

    I have a C-180 and when in the Main Menu (booting) I have previously
setup the Console path to Serial, what input do I need to set it back to
normal console (Keyboard/screen) ?


> Main Menu: Enter command > pa con
>
>   Console path:         SERIAL_1.9600.8.none
>

    I have installed Debian through this console, and would like to play
with it the usual way now ;o)





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On Fri, Feb 21, 2003 at 03:58:52AM +0000, ext Rod Smart wrote:

>     I have a C-180 and when in the Main Menu (booting) I have previously
> setup the Console path to Serial, what input do I need to set it back to
> normal console (Keyboard/screen) ?

> >   Console path:         SERIAL_1.9600.8.none

>     I have installed Debian through this console, and would like to play
> with it the usual way now ;o)

Um ... "path console graphics" could be a good starting point. It 
probably tells you that "graphics" isn't a good path and shows a list of 
what could be, but that's almost as good.

Not sure though, I haven't had the chance to play with a C180, but that's 
what I do with the other Cxx0s.


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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> > On Fri, Feb 21, 2003 at 03:58:52AM +0000, ext Rod Smart wrote:
> >     I have a C-180 and when in the Main Menu (booting) I have previously
> > setup the Console path to Serial, what input do I need to set it back to
> > normal console (Keyboard/screen) ?
>
> > >   Console path:         SERIAL_1.9600.8.none
>
> >     I have installed Debian through this console, and would like to play
> > with it the usual way now ;o)
>
> Um ... "path console graphics" could be a good starting point. It
> probably tells you that "graphics" isn't a good path and shows a list of
> what could be, but that's almost as good.
>
> Not sure though, I haven't had the chance to play with a C180, but that's
> what I do with the other Cxx0s.
> --
> Mikko Nahkola   <mikko.nahkola@nokia.com>

"path console graphics(0)" sets the console to the built-in video on my
C180; graphics(x) (where x is the slot number as printed on the back of
the case) sets it to the video card in that slot...


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On Fri, Feb 21, 2003 at 06:26:47AM -0900, ext Tom wrote:
> > > On Fri, Feb 21, 2003 at 03:58:52AM +0000, ext Rod Smart wrote:

> > > >   Console path:         SERIAL_1.9600.8.none
> > >     I have installed Debian through this console, and would like to play
> > > with it the usual way now ;o)

> > Um ... "path console graphics" could be a good starting point. It
> > probably tells you that "graphics" isn't a good path and shows a list of
> > what could be, but that's almost as good.

> "path console graphics(0)" sets the console to the built-in video on my
> C180; graphics(x) (where x is the slot number as printed on the back of
> the case) sets it to the video card in that slot...

Well ... yes. (I just had to set a B180L to mode 12 on graphics(0) 
manually from the serial console as that seems to be the only way to make 
it work with an A4033A with the usual 3-BNC cable.)

Now that I think about it ... I probably had to use pci(4) or some such 
once on a C360 but then again that one didn't have a built-in adapter.

Oh, and really, my Linux-running C240 still has the console on serial - 
_and_ X and a bunch of virtual terminals also available on the graphics 
card. 


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: RE: [parisc-linux] X problems...
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Hi Dan,

I also install a b2k with linux, also I am very interrested by your information.

I so download rpms that you mentionned and install it.

I just first notice that they are just different revision of the kernel
module for hpgfx :). But, after a quick search on google, I read that it
must exists somewhere a set of user space tools as FXconfig.sh (to config
XFree86 if I well understand). Any info about this?

Some other notes:
using rpm to install sources I read in SPEC file:
_Distribution_: Red Hat Linux 6.2 (2.2.16-3)
                                   ^^^^^^^^
ok that is just a text but it makes me feel that it would run on 2.2 kernel
only
In your knowledge, is there some more recent release supporting 2.4?

And finaly (the very bad news) I think that I found the answer to your original
question (gcc complaints about unknown code IIRC):
_BuildArchitectures_: i386

And effectively a quick 'find' in sources makes me appear that there are
unfortunaltely asm code (specific to i386 arch :( )

So finaly I am interrested to know how do you build your module:
for me a simple make failled because it did not know where to find some
headers,
and rpm -bb SPECS/tag... failled because of architecture restriction?

Sorry to not be more helpfull,
    Joel



>-- Original Message --
>From: "Dan Baker" <dan_baker@eli.net>
>To: "'Grant Grundler'" <grundler@dsl2.external.hp.com>
>Cc: <parisc-linux@lists.parisc-linux.org>
>Subject: RE: [parisc-linux] X problems...
>Date: Thu, 20 Feb 2003 09:28:04 -0800
>
>
>the other driver is at
>ftp://ftp.hp.com/pub/ccd/soar2sdd/wk259/wk259mu/hpgraphics_kernel-1.5.13-1.s
>rc.rpm
>
>Sorry
>
>Dan Baker
>
>-----Original Message-----
>From: parisc-linux-admin@lists.parisc-linux.org
>[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Grant
>Grundler
>Sent: Wednesday, February 19, 2003 9:15 PM
>To: Dan Baker
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] X problems...
>
>
>On Wed, Feb 19, 2003 at 05:42:29PM -0800, Dan Baker wrote:
>> BUT, I did download source code for HP's Intel linux visualize driver.
>I
>> can't get it to compile, the assembler tells me there's an invalid opcode
>> (??) in the .o file. I'm not really a programmer, so I'm hoping somebody
>out
>> there can take a look at what they're doing and fix it.
>
>Well, it's not that easy even for someone who can read C.
>
>First, some bad news:
>o x86 version of the card has extra VGA cruft+BIOS.
>  PA-Risc version uses STI firmware for initialization.
>o IIRC, the X11 server (or maybe just gfx card driver?) is a custom,
>  closed source code.  Hopefully I'm wrong and someone will correct me.
>o I'll guess that many (most of the?) interesting bits are in the XF86
>  hpgfx driver module. I'm assuming one exists.
>
>Good news: 3d acceleration for x86 cards uses the same RISC engines
>as the parisc cards.
>
>Several years ago I asked someone in the HP gfx group if they
>could port the HPUX driver to parisc-linux but our port wasn't
>ready then (I think it is now). The gfx driver interacts *alot*
>with the rest of the kernel *and* the X11 server.
>The above is what I remember from conversations with people.
>
>> The files are at
>>
>>
>ftp://ftp.hp.com/pub/ccd/soar2sdd/wk207/wk207en/hpgraphics_kernel-1.5.3-1.sr
>> c.rpm
>> and
>>
>ftp://ftp.hp.com/pub/ccd/soar2sdd/wk207/wk207en/hpgraphics_kernel-1.5.3-1.sr
>> c.rpm
>
>uhm...'cuse me, but aren't those the same?
>
>hth
>grant
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>_______________________________________________
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    Ok, my graphics card is installed in Slot 3, so whats the differance between
3a and 3b ??

> Possible paths are:
>         GRAPHICS(0)
>         GRAPHICS(1a)
>         GRAPHICS(1b)
>         GRAPHICS(2a)
>         GRAPHICS(2b)
>         GRAPHICS(3a)
>         GRAPHICS(3b)
>         GRAPHICS(4a)
>         GRAPHICS(4b)
>         PCI3
>         PCI4
>         SERIAL_1
>         SERIAL_2
>
Nahkola Mikko wrote:

> On Fri, Feb 21, 2003 at 06:26:47AM -0900, ext Tom wrote:
> > > > On Fri, Feb 21, 2003 at 03:58:52AM +0000, ext Rod Smart wrote:
>
> > > > >   Console path:         SERIAL_1.9600.8.none
> > > >     I have installed Debian through this console, and would like to play
> > > > with it the usual way now ;o)
>
> > > Um ... "path console graphics" could be a good starting point. It
> > > probably tells you that "graphics" isn't a good path and shows a list of
> > > what could be, but that's almost as good.
>
> > "path console graphics(0)" sets the console to the built-in video on my
> > C180; graphics(x) (where x is the slot number as printed on the back of
> > the case) sets it to the video card in that slot...
>
> Well ... yes. (I just had to set a B180L to mode 12 on graphics(0)
> manually from the serial console as that seems to be the only way to make
> it work with an A4033A with the usual 3-BNC cable.)
>
> Now that I think about it ... I probably had to use pci(4) or some such
> once on a C360 but then again that one didn't have a built-in adapter.
>
> Oh, and really, my Linux-running C240 still has the console on serial -
> _and_ X and a bunch of virtual terminals also available on the graphics
> card.
>
> --
> Mikko Nahkola   <mikko.nahkola@nokia.com>
> Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: Re: [parisc-linux] boot console wrong.
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Slot 3 alone is single port.  Slot 3a would be port one of a dual monitor port card and slot 3b would be the second monitor port of that dual monitor port card.
derek
 Rod Smart <snaketails@optushome.com.au> wrote:Ok, my graphics card is installed in Slot 3, so whats the differance between
3a and 3b ??

> Possible paths are:
> GRAPHICS(0)
> GRAPHICS(1a)
> GRAPHICS(1b)
> GRAPHICS(2a)
> GRAPHICS(2b)
> GRAPHICS(3a)
> GRAPHICS(3b)
> GRAPHICS(4a)
> GRAPHICS(4b)
> PCI3
> PCI4
> SERIAL_1
> SERIAL_2
>
Nahkola Mikko wrote:

> On Fri, Feb 21, 2003 at 06:26:47AM -0900, ext Tom wrote:
> > > > On Fri, Feb 21, 2003 at 03:58:52AM +0000, ext Rod Smart wrote:
>
> > > > > Console path: SERIAL_1.9600.8.none
> > > > I have installed Debian through this console, and would like to play
> > > > with it the usual way now ;o)
>
> > > Um ... "path console graphics" could be a good starting point. It
> > > probably tells you that "graphics" isn't a good path and shows a list of
> > > what could be, but that's almost as good.
>
> > "path console graphics(0)" sets the console to the built-in video on my
> > C180; graphics(x) (where x is the slot number as printed on the back of
> > the case) sets it to the video card in that slot...
>
> Well ... yes. (I just had to set a B180L to mode 12 on graphics(0)
> manually from the serial console as that seems to be the only way to make
> it work with an A4033A with the usual 3-BNC cable.)
>
> Now that I think about it ... I probably had to use pci(4) or some such
> once on a C360 but then again that one didn't have a built-in adapter.
>
> Oh, and really, my Linux-running C240 still has the console on serial -
> _and_ X and a bunch of virtual terminals also available on the graphics
> card.
>
> --
> Mikko Nahkola 
> Tre-IN sysadmin 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

_______________________________________________
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<P>Slot 3 alone is single port.&nbsp; Slot 3a would be port one of a dual monitor port card and slot 3b would be the second monitor port of that dual monitor port card.
<P>derek
<P>&nbsp;<B><I>Rod Smart &lt;snaketails@optushome.com.au&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">Ok, my graphics card is installed in Slot 3, so whats the differance between<BR>3a and 3b ??<BR><BR>&gt; Possible paths are:<BR>&gt; GRAPHICS(0)<BR>&gt; GRAPHICS(1a)<BR>&gt; GRAPHICS(1b)<BR>&gt; GRAPHICS(2a)<BR>&gt; GRAPHICS(2b)<BR>&gt; GRAPHICS(3a)<BR>&gt; GRAPHICS(3b)<BR>&gt; GRAPHICS(4a)<BR>&gt; GRAPHICS(4b)<BR>&gt; PCI3<BR>&gt; PCI4<BR>&gt; SERIAL_1<BR>&gt; SERIAL_2<BR>&gt;<BR>Nahkola Mikko wrote:<BR><BR>&gt; On Fri, Feb 21, 2003 at 06:26:47AM -0900, ext Tom wrote:<BR>&gt; &gt; &gt; &gt; On Fri, Feb 21, 2003 at 03:58:52AM +0000, ext Rod Smart wrote:<BR>&gt;<BR>&gt; &gt; &gt; &gt; &gt; Console path: SERIAL_1.9600.8.none<BR>&gt; &gt; &gt; &gt; I have installed Debian through this console, and would li
 ke to play<BR>&gt; &gt; &gt; &gt; with it the usual way now ;o)<BR>&gt;<BR>&gt; &gt; &gt; Um ... "path console graphics" could be a good starting point. It<BR>&gt; &gt; &gt; probably tells you that "graphics" isn't a good path and shows a list of<BR>&gt; &gt; &gt; what could be, but that's almost as good.<BR>&gt;<BR>&gt; &gt; "path console graphics(0)" sets the console to the built-in video on my<BR>&gt; &gt; C180; graphics(x) (where x is the slot number as printed on the back of<BR>&gt; &gt; the case) sets it to the video card in that slot...<BR>&gt;<BR>&gt; Well ... yes. (I just had to set a B180L to mode 12 on graphics(0)<BR>&gt; manually from the serial console as that seems to be the only way to make<BR>&gt; it work with an A4033A with the usual 3-BNC cable.)<BR>&gt;<BR>&gt; Now tha
 t I think about it ... I probably had to use pci(4) or some such<BR>&gt; once on a C360 but then again that one didn't have a built-in adapter.<BR>&gt;<BR>&gt; Oh, and really, my Linux-running C240 still has the console on serial -<BR>&gt; _and_ X and a bunch of virtual terminals also available on the graphics<BR>&gt; card.<BR>&gt;<BR>&gt; --<BR>&gt; Mikko Nahkola <MIKKO.NAHKOLA@NOKIA.COM><BR>&gt; Tre-IN sysadmin <MNAHKOLA@TREIN.NTC.NOKIA.COM><BR>&gt; _______________________________________________<BR>&gt; parisc-linux mailing list<BR>&gt; parisc-linux@lists.parisc-linux.org<BR>&gt; http://lists.parisc-linux.org/mailman/listinfo/parisc-linux<BR><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-li
 nux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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From - Thu Nov 08 21:26:51 2018
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Subject: Re: [parisc-linux] X problems...
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Joel Soete wrote:

>Hi Dan,
>
>I also install a b2k with linux, also I am very interrested by your information.
>
>I so download rpms that you mentionned and install it.
>
>I just first notice that they are just different revision of the kernel
>module for hpgfx :). But, after a quick search on google, I read that it
>must exists somewhere a set of user space tools as FXconfig.sh (to config
>XFree86 if I well understand). Any info about this?
>  
>
Using Google, I found this URL:

http://www.msclinux.com/software/msclinux/installcd_packages_july2002-i686/msclinux-i686-July2002-installation-RPMS-hpgraphics-1.5.3.k24-3.msc.i686.rpm.html

Hope it helps,
    Rdiger




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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: RE: [parisc-linux] X problems...
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just find this dated Jan 2003 for 2.4 kernel I presume:

<ftp://ftp.msclinux.com/msclinux/i686/current/SRPMS/hpgraphics-1.5.3.2.4.18-9.msc.src.rpm>

seems also containing tools (will see later)

hth,
    Joel

>-- Original Message --
>From: "Joel Soete" <jsoe0708@tiscali.be>
>Subject: RE: [parisc-linux] X problems...
>To: "Dan Baker" <dan_baker@eli.net>,
>	"'Grant Grundler'" <grundler@dsl2.external.hp.com>
>Cc: parisc-linux@lists.parisc-linux.org
>Date: Fri, 21 Feb 2003 17:17:49 +0100
>
>
>Hi Dan,
>
>I also install a b2k with linux, also I am very interrested by your information.
>
>I so download rpms that you mentionned and install it.
>
>I just first notice that they are just different revision of the kernel
>module for hpgfx :). But, after a quick search on google, I read that it
>must exists somewhere a set of user space tools as FXconfig.sh (to config
>XFree86 if I well understand). Any info about this?
>
>Some other notes:
>using rpm to install sources I read in SPEC file:
>_Distribution_: Red Hat Linux 6.2 (2.2.16-3)
>                                   ^^^^^^^^
>ok that is just a text but it makes me feel that it would run on 2.2 kernel
>only
>In your knowledge, is there some more recent release supporting 2.4?
>
>And finaly (the very bad news) I think that I found the answer to your original
>question (gcc complaints about unknown code IIRC):
>_BuildArchitectures_: i386
>
>And effectively a quick 'find' in sources makes me appear that there are
>unfortunaltely asm code (specific to i386 arch :( )
>
>So finaly I am interrested to know how do you build your module:
>for me a simple make failled because it did not know where to find some
>headers,
>and rpm -bb SPECS/tag... failled because of architecture restriction?
>
>Sorry to not be more helpfull,
>    Joel
>
>
>
>>-- Original Message --
>>From: "Dan Baker" <dan_baker@eli.net>
>>To: "'Grant Grundler'" <grundler@dsl2.external.hp.com>
>>Cc: <parisc-linux@lists.parisc-linux.org>
>>Subject: RE: [parisc-linux] X problems...
>>Date: Thu, 20 Feb 2003 09:28:04 -0800
>>
>>
>>the other driver is at
>>ftp://ftp.hp.com/pub/ccd/soar2sdd/wk259/wk259mu/hpgraphics_kernel-1.5.13-1.s
>>rc.rpm
>>
>>Sorry
>>
>>Dan Baker
>>
>>-----Original Message-----
>>From: parisc-linux-admin@lists.parisc-linux.org
>>[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Grant
>>Grundler
>>Sent: Wednesday, February 19, 2003 9:15 PM
>>To: Dan Baker
>>Cc: parisc-linux@lists.parisc-linux.org
>>Subject: Re: [parisc-linux] X problems...
>>
>>
>>On Wed, Feb 19, 2003 at 05:42:29PM -0800, Dan Baker wrote:
>>> BUT, I did download source code for HP's Intel linux visualize driver.
>>I
>>> can't get it to compile, the assembler tells me there's an invalid opcode
>>> (??) in the .o file. I'm not really a programmer, so I'm hoping somebody
>>out
>>> there can take a look at what they're doing and fix it.
>>
>>Well, it's not that easy even for someone who can read C.
>>
>>First, some bad news:
>>o x86 version of the card has extra VGA cruft+BIOS.
>>  PA-Risc version uses STI firmware for initialization.
>>o IIRC, the X11 server (or maybe just gfx card driver?) is a custom,
>>  closed source code.  Hopefully I'm wrong and someone will correct me.
>>o I'll guess that many (most of the?) interesting bits are in the XF86
>>  hpgfx driver module. I'm assuming one exists.
>>
>>Good news: 3d acceleration for x86 cards uses the same RISC engines
>>as the parisc cards.
>>
>>Several years ago I asked someone in the HP gfx group if they
>>could port the HPUX driver to parisc-linux but our port wasn't
>>ready then (I think it is now). The gfx driver interacts *alot*
>>with the rest of the kernel *and* the X11 server.
>>The above is what I remember from conversations with people.
>>
>>> The files are at
>>>
>>>
>>ftp://ftp.hp.com/pub/ccd/soar2sdd/wk207/wk207en/hpgraphics_kernel-1.5.3-1.sr
>>> c.rpm
>>> and
>>>
>>ftp://ftp.hp.com/pub/ccd/soar2sdd/wk207/wk207en/hpgraphics_kernel-1.5.3-1.sr
>>> c.rpm
>>
>>uhm...'cuse me, but aren't those the same?
>>
>>hth
>>grant
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
>
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>-- Original Message --
>Date: Fri, 21 Feb 2003 17:50:12 +0100
>From: Rdiger Scholz <r.scholz@bluehash.de>
>To: Joel Soete <jsoe0708@tiscali.be>, 
> parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] X problems...
>
>
>Joel Soete wrote:
>
>>Hi Dan,
>>
>>I also install a b2k with linux, also I am very interrested by your information.
>>
>>I so download rpms that you mentionned and install it.
>>
>>I just first notice that they are just different revision of the kernel
>>module for hpgfx :). But, after a quick search on google, I read that it
>>must exists somewhere a set of user space tools as FXconfig.sh (to config
>>XFree86 if I well understand). Any info about this?
>>  
>>
>Using Google, I found this URL:
>
>http://www.msclinux.com/software/msclinux/installcd_packages_july2002-i686/msclinux-i686-July2002-installation-RPMS-hpgraphics-1.5.3.k24-3.msc.i686.rpm.html
>
>Hope it helps,
>    Rdiger
>
>

hi hi I just follow the same and up in ftp link to finaly locate:

<ftp://ftp.msclinux.com/msclinux/i686/current/SRPMS/hpgraphics-1.5.3.2.4.18-9.msc.src.rpm>

(i will have a look but doubt that i386 asm was remove)

Thanks a lot,
    Joel


---------------------------------
Vous surfez avec une ligne classique ?
Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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On Sun, 16 Feb 2003 19:01:10 +0100 (MET)
adrian.criveanu@gmx.co.uk wrote:

> Dear Sir,
> 
> I apologise for writing you directly but I've seen your name a lot of times
> in the mail lists I looked for an answer ... You know how it happens... If
> you are nice and help people, they keep bothering you :)
Well, I know but you would probably have had a quicker answer by posting on the m-l directly, since I was on vacation till tonight.

For what it's worth, you should avoid (as anybody else) posting directly to people, please consider the mess if everybody does so... Usually I don't answer direct mails ;P

That's why I'm CCing the m-l anyway.
> 
> I tried to install 3.0r0 from the CDs. When I used the graphics card, it
> didn't go too far and gave me an HPMC (I saw a mail from somebody with a  B1000
> which had the same problem). I managed to install Debian only using the
> serial console. IN one of your messages you said thet Vis-EG is supported. My C240
> has a A4450A card (Vis-EG) and it seems it doesn't work with Debian. 
If I remember correctly, 3.0r0 doesn't support B1000. You should use one of our netinsts.
http://pateam.esiee.fr/download.html
> 
> Unfortunately I wasn't able to find a way to use it on my workstation. Is is
> supported or do I need a PCI version of it? Regardless of the answer, is
> there anywhere a good documentation on how to configure these cards for Debian?
The only thing you need is STIFB support and a proper X configuration (that is, one that respects your kernel framebuffer device setup (see the mailing-list archive for details and the PA/Linux Boot Howto:
http://pateam.esiee.fr/doc.html)
> 
> Thank you very much.
You're welcome.
> 
> Regards,
> 
> Adrian
> 


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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    Thank you people ;o)

    The consol is now back to graphic card, and debian is loading further
than I have previously had it loading ;o)

    Just have to get gdm to run after configuring it.

Rod Smart wrote:

>     Hello list, long time no talk here.
>
>     I have a C-180 and when in the Main Menu (booting) I have previously
> setup the Console path to Serial, what input do I need to set it back to
> normal console (Keyboard/screen) ?
>
> > Main Menu: Enter command > pa con
> >
> >   Console path:         SERIAL_1.9600.8.none
> >
>
>     I have installed Debian through this console, and would like to play
> with it the usual way now ;o)
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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On 19 Feb 2003, Grant Grundler wrote:

> On Wed, Feb 19, 2003 at 05:42:29PM -0800, Dan
> Baker wrote:
> > BUT, I did download source code for HP's
> > Intel linux visualize driver. I can't get it
> > to compile, the assembler tells me there's
> > an invalid opcode (??) in the .o file. I'm
> > not really a programmer, so I'm hoping
> > somebody out there can take a look at what
> > they're doing and fix it.

Getting this code to compile is not going to get you anywhere.

> Well, it's not that easy even for someone who
> can read C.
>
> First, some bad news: o x86 version of the
> card has extra VGA cruft+BIOS. PA-Risc version
> uses STI firmware for initialization. o IIRC,
> the X11 server (or maybe just gfx card
> driver?) is a custom, closed source code.
> Hopefully I'm wrong and someone will correct
> me. o I'll guess that many (most of the?)
> interesting bits are in the XF86 hpgfx driver
> module. I'm assuming one exists.

The X server support for the FX4/FX6 on IA32 was accomplished by a port of Xhp (the HP-UX X server) to Linux.   Besides Xhp, the HP-UX OpenGL implementation was ported for 3D. Only the "+" or "pro" versions of these boards were supported. (I have an earlier FX4 which I've never been able to get working under Linux.) Both Xhp and the HP OGL are closed source.

A kernel module was needed to interract with the FX4/FX6 similar to the DRI support in XFree86. If you had upgraded your kernel on one of these IA-32 "Visualize" boxes from the stock Red Hat release, you would have needed to re-compile this module. This is the extent of the source code that was provided.

As Grant mentioned, these FX4/FX6 boards were NOT the same as the PA versions. They had a VGA BIOS added (via a daughter card) and took-up both an AGP and PCI slot.

> Good news: 3d acceleration for x86 cards uses
> the same RISC engines as the parisc cards.

PA-8000's I believe. 1 on the FX2, 2 on the FX4, 3 on the FX6.

> Several years ago I asked someone in the HP
> gfx group if they could port the HPUX driver
> to parisc-linux but our port wasn't ready then
> (I think it is now). The gfx driver interacts
> *alot* with the rest of the kernel *and* the
> X11 server. The above is what I remember from
> conversations with people.

While I believe it is possible, resources in the graphics lab are scarse. I suspect that a majority of the code could never be made public, so even if the lab found time to do it once, it would be tough to keep it maintained, etc.



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On Thu, Feb 20, 2003 at 06:05:34PM +0100, Joel Soete wrote:
> Do you think it could be now find into XFree86 kernel drivers?

I don't know. I was pretty sure the X11.org code had basic support
for parisc graphics cards. But I'm not sure it covered the latest
generation (FX[2456]). No clue is XFree86 picked those up or not.

BTW, in another email you noted the source was only supporting 2.2 kernel.
That makes sense to me since I didn't see the driver using
pci_dma* routines. Without using those routines, I don't expect
the code to work on any parisc machines.

grant


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On Fri, Feb 21, 2003 at 05:48:40PM -0800, caslivkoff@speakeasy.net wrote:
> Getting this code to compile is not going to get you anywhere.

understood...just a step in that direction.

...
> While I believe it is possible, resources in the graphics lab are scarse.
> I suspect that a majority of the code could never be made public, so even
> if the lab found time to do it once, it would be tough to keep it
> maintained, etc.

If someone quietly passed me working code that I could publish,
they wouldn't have to maintain it. I'm confident the folks who
got STI FB working could also keep this working.

But I'm afraid resources is a moot point: it's unlikely
to get permission to get published. :^(

thanks chuck,
grant


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Dear parisc-linux,

Guess what?  dezone (dezone@sina.com) has sent you a greeting card!

Your card can be picked up by clicking on the following link:

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Xref: news.gmane.org gmane.linux.ports.parisc:17767

Hi.  I believe I should still have a copyright assignment on file.

Index: opcodes/ChangeLog
===================================================================
RCS file: /cvs/src/src/opcodes/ChangeLog,v
retrieving revision 1.547
diff -u -p -r1.547 ChangeLog
--- opcodes/ChangeLog	12 Feb 2003 22:33:59 -0000	1.547
+++ opcodes/ChangeLog	23 Feb 2003 18:54:00 -0000
@@ -1,3 +1,9 @@
+2003-02-23  Matthew Wilcox  <willy@debian.org>
+
+	* hppa-dis.c: Do not emit a space register if the space register
+	field is 2 bits and the value is 0 as this is implicit addressing,
+	not use of space register 0.
+
 2003-02-12  Dave Brolley  <brolley@redhat.com>
 
 	* fr30-desc.c: Regenerate.
Index: opcodes/hppa-dis.c
===================================================================
RCS file: /cvs/src/src/opcodes/hppa-dis.c,v
retrieving revision 1.41
diff -u -p -r1.41 hppa-dis.c
--- opcodes/hppa-dis.c	31 Dec 2001 23:44:08 -0000	1.41
+++ opcodes/hppa-dis.c	23 Feb 2003 18:54:00 -0000
@@ -541,8 +541,11 @@ print_insn_hppa (memaddr, info)
 		  fput_const (extract_5_load (insn), info);
 		  break;
 		case 's':
-		  (*info->fprintf_func) (info->stream,
-					 "sr%d", GET_FIELD (insn, 16, 17));
+		  {
+		    int space = GET_FIELD (insn, 16, 17);
+		    if (space != 0)
+		      (*info->fprintf_func) (info->stream, "sr%d", space);
+		  }
 		  break;
 
 		case 'S':

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] second sr0 patch
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forgot to cc p-l on this one.  sorry.

----- Forwarded message from Matthew Wilcox <willy@wil.cx> -----

Index: gas/ChangeLog
===================================================================
RCS file: /cvs/src/src/gas/ChangeLog,v
retrieving revision 1.1677
diff -u -p -r1.1677 ChangeLog
--- gas/ChangeLog	21 Feb 2003 19:05:01 -0000	1.1677
+++ gas/ChangeLog	23 Feb 2003 19:21:05 -0000
@@ -1,3 +1,8 @@
+2003-02-23  Matthew Wilcox  <willy@debian.org>
+
+	* config/tc-hppa.c: Do not accept sr0 as a valid space register when
+	  constructing an instruction with a 2-bit s field.
+
 2003-02-21  Nick Clifton  <nickc@redhat.com>
 
 	* NEWS: Mention availability of test generator program.
Index: gas/config/tc-hppa.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-hppa.c,v
retrieving revision 1.102
diff -u -p -r1.102 tc-hppa.c
--- gas/config/tc-hppa.c	23 Jan 2003 12:51:04 -0000	1.102
+++ gas/config/tc-hppa.c	23 Feb 2003 19:21:09 -0000
@@ -1794,7 +1794,7 @@ pa_ip (str)
 	      if (!pa_parse_number (&s, 0))
 		break;
 	      num = pa_number;
-	      CHECK_FIELD (num, 3, 0, 1);
+	      CHECK_FIELD (num, 3, 1, 1);
 	      INSERT_FIELD_AND_CONTINUE (opcode, num, 14);
 
 	    /* Handle a 3 bit space identifier at 18.  */

----- End forwarded message -----

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] second sr0 patch
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In article <20030223204842.E2938@parcelfarce.linux.theplanet.co.uk> you wrote:

> --- gas/config/tc-hppa.c	23 Jan 2003 12:51:04 -0000	1.102
> +++ gas/config/tc-hppa.c	23 Feb 2003 19:21:09 -0000
> @@ -1794,7 +1794,7 @@ pa_ip (str)
>  	      if (!pa_parse_number (&s, 0))
>  		break;
>  	      num = pa_number;
> -	      CHECK_FIELD (num, 3, 0, 1);
> +	      CHECK_FIELD (num, 3, 1, 1);
>  	      INSERT_FIELD_AND_CONTINUE (opcode, num, 14);
>  
>  	    /* Handle a 3 bit space identifier at 18.  */

I don't think this is a good plan.  Emit a warning, sure, but there is
a large collection of legacy PARISC assembly code out there that has
this perfectly legal, and hp-ux assembler-accepted-from-day-0 construct.

lamont


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On Sun, Feb 23, 2003 at 03:20:35PM -0700, LaMont Jones wrote:
> In article <20030223204842.E2938@parcelfarce.linux.theplanet.co.uk> you wrote:
> > +++ gas/config/tc-hppa.c	23 Feb 2003 19:21:09 -0000
> > @@ -1794,7 +1794,7 @@ pa_ip (str)
> >  	      if (!pa_parse_number (&s, 0))
> >  		break;
> >  	      num = pa_number;
> > -	      CHECK_FIELD (num, 3, 0, 1);
> > +	      CHECK_FIELD (num, 3, 1, 1);

> I don't think this is a good plan.  Emit a warning, sure, but there is
> a large collection of legacy PARISC assembly code out there that has
> this perfectly legal, and hp-ux assembler-accepted-from-day-0 construct.

OK, patch withdrawn.  It's misleading to use this construct, but if people
have been doing it for fifteen years then it's just not reasonable to
not support it now.

The other patch still stands; we're not using sr0 so it's misleading to
pretend that we are.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] Re: [PATCH] space register 0 changes for hppa
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On Sun, Feb 23, 2003 at 06:58:47PM +0000, Matthew Wilcox wrote:
> +	* hppa-dis.c: Do not emit a space register if the space register
> +	field is 2 bits and the value is 0 as this is implicit addressing,
> +	not use of space register 0.

Hi Matthew,
  ChangeLog entries shouldn't be sent as diffs.  Write this one as

	* hppa-dis.c (print_insn_hppa <2 bit space register>): Do not print
	the space register when the value is zero.

and put the reason for the change as a comment in the code if you feel
you need some justification for the change.

Did you run the binutils testsuite?

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre


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On Mon, Feb 24, 2003 at 04:54:21PM +1030, Alan Modra wrote:
>   ChangeLog entries shouldn't be sent as diffs.  Write this one as
> 
> 	* hppa-dis.c (print_insn_hppa <2 bit space register>): Do not print
> 	the space register when the value is zero.
> 
> and put the reason for the change as a comment in the code if you feel
> you need some justification for the change.

OK.  I'm just used to changelogs which're a little more verbose.  I
don't think it really needs justifying.

> Did you run the binutils testsuite?

I hadn't... but I have now, and it doesn't introduce any failures.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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2003-02-24  Matthew Wilcox  <willy@debian.org>

	* hppa-dis.c (print_insn_hppa): Implement fcnv instruction modifiers.

Index: opcodes/hppa-dis.c
===================================================================
RCS file: /cvs/src/src/opcodes/hppa-dis.c,v
retrieving revision 1.41
diff -u -p -r1.41 hppa-dis.c
--- opcodes/hppa-dis.c	31 Dec 2001 23:44:08 -0000	1.41
+++ opcodes/hppa-dis.c	24 Feb 2003 12:59:06 -0000
@@ -123,6 +123,8 @@ static const char *const short_bytes_com
   "", ",b,m", ",e", ",e,m"
 };
 static const char *const float_format_names[] = {",sgl", ",dbl", "", ",quad"};
+static const char *const fcnv_fixed_names[] = {",w", ",dw", "", ",qw"};
+static const char *const fcnv_ufixed_names[] = {",uw", ",udw", "", ",uqw"};
 static const char *const float_comp_names[] =
 {
   ",false?", ",false", ",?", ",!<=>", ",=", ",=t", ",?=", ",!<>",
@@ -397,7 +399,7 @@ print_insn_hppa (memaddr, info)
 #endif
 	  (*info->fprintf_func) (info->stream, "%s", opcode->name);
 
-	  if (!strchr ("cfCY?-+nHNZFIuv", opcode->args[0]))
+	  if (!strchr ("cfCY?-+nHNZFIuv{", opcode->args[0]))
 	    (*info->fprintf_func) (info->stream, " ");
 	  for (s = opcode->args; *s != '\0'; ++s)
 	    {
@@ -1131,11 +1136,33 @@ print_insn_hppa (memaddr, info)
 		    break;
 		  }
 
-		/* ?!? FIXME */
 		case '_':
+		  break; /* Dealt with by '{' */
+
 		case '{':
-		  fputs_filtered ("Disassembler botch.\n", info);
-		  break;
+		  {
+		    int sub = GET_FIELD (insn, 14, 16);
+		    int df = GET_FIELD (insn, 17, 18);
+		    int sf = GET_FIELD (insn, 19, 20);
+		    const char * const * source = float_format_names;
+		    const char * const * dest = float_format_names;
+		    char *t = "";
+		    if (sub == 4)
+		      {
+			fputs_filtered (",UND ", info);
+			break;
+		      }
+		    if ((sub & 3) == 3)
+		      t = ",t";
+		    if ((sub & 3) == 1)
+		      source = (sub & 4) ? fcnv_ufixed_names : fcnv_fixed_names;
+		    if (sub & 2)
+		      dest = (sub & 4) ? fcnv_ufixed_names : fcnv_fixed_names;
+
+		    (*info->fprintf_func) (info->stream, "%s%s%s ",
+					   t, source[sf], dest[df]);
+		    break;
+		  }
 
 		case 'm':
 		  {

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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In message <20030224062421.GA31111@bubble.sa.bigpond.net.au>, Alan Modra writes
:
 >Hi Matthew,
 >  ChangeLog entries shouldn't be sent as diffs.  Write this one as
 >
 >	* hppa-dis.c (print_insn_hppa <2 bit space register>): Do not print
 >	the space register when the value is zero.
 >
 >and put the reason for the change as a comment in the code if you feel
 >you need some justification for the change.
 >
 >Did you run the binutils testsuite?
And the GDB testsuite, which tests the PA disassembler.  I'm 99% sure
it's going to fail after this change.

jeff


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On Mon, Feb 24, 2003 at 08:01:31AM -0700, law@redhat.com wrote:
> And the GDB testsuite, which tests the PA disassembler.  I'm 99% sure
> it's going to fail after this change.

Is it OK if I fix the testsuite then?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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In message <20030224145957.K2938@parcelfarce.linux.theplanet.co.uk>, Matthew Wi
lcox writes:
 >On Mon, Feb 24, 2003 at 08:01:31AM -0700, law@redhat.com wrote:
 >> And the GDB testsuite, which tests the PA disassembler.  I'm 99% sure
 >> it's going to fail after this change.
 >
 >Is it OK if I fix the testsuite then?
No strong opinions either way.

jeff



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Subject: [parisc-linux] 2.4.20-pa27 64bits smp problem!
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Hi all,

Having the opportunity to test a N-class (classical), I build a sd with
debian unstable running a kernel 2.4.20-pa27 64bits up and would try now
to rebuild this same kernel with smp support (I am reach of 2cpu  :) ) but
compile failled with following message:

hppa64-linux-gcc -D__KERNEL__ -I/usr/src/linux-2.4.20-pa27-64/include -Wall
-Wst
rict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame
-pointer -D__linux__ -pipe -fno-strength-reduce -mno-space-regs -mfast-indirect-
calls -mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000
-nostdin
c -I /usr/lib/gcc-lib/hppa64-linux/3.2.3/include -DKBUILD_BASENAME=sched
 -fno-o
mit-frame-pointer -c -o sched.o sched.c
sched.c:93: initializer element is not constant
sched.c:93: (near initialization for `tasklist_lock')
sched.c:93: initializer element is not constant
make[2]: *** [sched.o] Error 1
make[2]: Leaving directory `/usr/src/linux-2.4.20-pa27-64/kernel'
make[1]: *** [first_rule] Error 2
make[1]: Leaving directory `/usr/src/linux-2.4.20-pa27-64/kernel'
make: *** [_dir_kernel] Error 2

at this 93th line I met:
rwlock_t tasklist_lock __cacheline_aligned = RW_LOCK_UNLOCKED

which is precompile as:
rwlock_t tasklist_lock __attribute__((__aligned__(64))) = (rwlock_t) { (spinlock_t)
{1}, 0 };

What's wrong?

I am using the last I know gcc-hppa64 3.2.3-0.1 (would I have to prefer
previous release?) .

Thanks in advance,
    Joel



---------------------------------
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Faites des economies avec Tiscali Complete
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On Mon, Feb 24, 2003 at 06:42:39PM +0100, Joel Soete wrote:
> sched.c:93: initializer element is not constant
> sched.c:93: (near initialization for `tasklist_lock')
> sched.c:93: initializer element is not constant
[...]
> which is precompile as:
> rwlock_t tasklist_lock __attribute__((__aligned__(64))) = (rwlock_t) { (spinlock_t)
> {1}, 0 };
> 
> What's wrong?

looks like gcc broke this again.  for the moment, you can try taking
out the casts.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Mon, Feb 24, 2003 at 08:01:31AM -0700, law@redhat.com wrote:
> And the GDB testsuite, which tests the PA disassembler.  I'm 99% sure
> it's going to fail after this change.

i would, if i could.  every attempt i made to get gdb's testsuite to
run met with disaster.  this was supposed to be a quick bugfix not a
major expedition.  i give up.  someone who can cope with the ridiculous
requirements for building gdb targetting hppa can fix this.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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In message <20030224182328.M2938@parcelfarce.linux.theplanet.co.uk>, Matthew Wi
lcox writes:
 >On Mon, Feb 24, 2003 at 08:01:31AM -0700, law@redhat.com wrote:
 >> And the GDB testsuite, which tests the PA disassembler.  I'm 99% sure
 >> it's going to fail after this change.
 >
 >i would, if i could.  every attempt i made to get gdb's testsuite to
 >run met with disaster.  this was supposed to be a quick bugfix not a
 >major expedition.  i give up.  someone who can cope with the ridiculous
 >requirements for building gdb targetting hppa can fix this.
Err, I built it without difficulty a few months ago (I don't do nearly as
much PA work as I used to).  Presumably you have an HPUX box, right?  That's
the easiest way to get it build and running.

Jeff



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On Mon, Feb 24, 2003 at 11:39:52AM -0700, law@redhat.com wrote:
> Err, I built it without difficulty a few months ago (I don't do nearly as
> much PA work as I used to).  Presumably you have an HPUX box, right?  That's
> the easiest way to get it build and running.

nope, no hpux, only i386-linux and hppa-linux around here.  trying to
get binutils cvs to build a cross i386->hppa gdb dies in tix (no tk8.4
directory), trying with just `make all-binutils all-gdb' dies being
unable to find dl.h or machine/save_state.h.

so switch to trying native on an hppa-linux host with gdb-5.3.  that dies
claiming hppa-linux is unsupported.  apply the debian patches.  that build
dies trying to find texc.pro.

i'm willing to put in a certain amount of time & effort, but this is
too much.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Mon, Feb 24, 2003 at 06:42:25PM +0000, Matthew Wilcox wrote:
> On Mon, Feb 24, 2003 at 11:39:52AM -0700, law@redhat.com wrote:
> > Err, I built it without difficulty a few months ago (I don't do nearly as
> > much PA work as I used to).  Presumably you have an HPUX box, right?  That's
> > the easiest way to get it build and running.
> 
> nope, no hpux, only i386-linux and hppa-linux around here.  trying to
> get binutils cvs to build a cross i386->hppa gdb dies in tix (no tk8.4
> directory), trying with just `make all-binutils all-gdb' dies being
> unable to find dl.h or machine/save_state.h.
> 
> so switch to trying native on an hppa-linux host with gdb-5.3.  that dies
> claiming hppa-linux is unsupported.  apply the debian patches.  that build
> dies trying to find texc.pro.
> 
> i'm willing to put in a certain amount of time & effort, but this is
> too much.

That means the version of texinfo install on that machine is broken. 
It was fixed in Debian/unstable some months ago.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer


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> On Mon, Feb 24, 2003 at 11:39:52AM -0700, law@redhat.com wrote:
> 
>> Err, I built it without difficulty a few months ago (I don't do nearly as
>> much PA work as I used to).  Presumably you have an HPUX box, right?  That's
>> the easiest way to get it build and running.
> 
> 
> nope, no hpux, only i386-linux and hppa-linux around here.  trying to
> get binutils cvs to build a cross i386->hppa gdb dies in tix (no tk8.4
> directory), trying with just `make all-binutils all-gdb' dies being
> unable to find dl.h or machine/save_state.h.

Unfortunatly, no one got the i386->hppa GDB to build so asking you to do 
that isn't reasonable.  If you've a hppa-linux-gnu box, can you just try 
binutils, `objdump --disassemble`?

Andrew

> so switch to trying native on an hppa-linux host with gdb-5.3.  that dies
> claiming hppa-linux is unsupported.  apply the debian patches.  that build
> dies trying to find texc.pro.
> 
> i'm willing to put in a certain amount of time & effort, but this is
> too much.
> 
> -- "It's not Hollywood. War is real, war is primarily not about defeat or victory, it is about death. I've seen thousands and thousands of dead bodies. Do you think I want to have an academic debate on this subject?" -- Robert Fisk 




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On Mon, Feb 24, 2003 at 04:49:35PM -0500, Andrew Cagney wrote:
> > get binutils cvs to build a cross i386->hppa gdb dies in tix (no tk8.4
> > directory), trying with just `make all-binutils all-gdb' dies being
> > unable to find dl.h or machine/save_state.h.
> 
> Unfortunatly, no one got the i386->hppa GDB to build so asking you to do 
> that isn't reasonable.  If you've a hppa-linux-gnu box, can you just try 
> binutils, `objdump --disassemble`?

Yep, I can build binutils head-of-cvs just fine as a crosscompiler,
and objdump --disassemble does the right thing.  Jeff's concern is that
this intended output change might break the gdb testsuite.

fwiw, it doesn't break the binutils `make check' ;-)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> On Mon, Feb 24, 2003 at 04:49:35PM -0500, Andrew Cagney wrote:
> 
>> > get binutils cvs to build a cross i386->hppa gdb dies in tix (no tk8.4
>> > directory), trying with just `make all-binutils all-gdb' dies being
>> > unable to find dl.h or machine/save_state.h.
> 
>> 
>> Unfortunatly, no one got the i386->hppa GDB to build so asking you to do 
>> that isn't reasonable.  If you've a hppa-linux-gnu box, can you just try 
>> binutils, `objdump --disassemble`?
> 
> 
> Yep, I can build binutils head-of-cvs just fine as a crosscompiler,
> and objdump --disassemble does the right thing.  Jeff's concern is that
> this intended output change might break the gdb testsuite.
> 
> fwiw, it doesn't break the binutils `make check' ;-)

If that happens `oops'.  GDB's HP/PA support isn't maintained.

Andrew




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On Mon, Feb 24, 2003 at 05:11:19PM -0500, Andrew Cagney wrote:
> > Yep, I can build binutils head-of-cvs just fine as a crosscompiler,
> > and objdump --disassemble does the right thing.  Jeff's concern is that
> > this intended output change might break the gdb testsuite.
> 
> If that happens `oops'.  GDB's HP/PA support isn't maintained.

OK.  If at some point it does start to be maintained, I volunteer to
fix up the testsuite.  It looks fairly straightforward -- deleting
the '%sr0,' from these lines:

.*ldw 0\\(sr0,r4\\),r26.*
.*ldh 0\\(sr0,r4\\),r26.*
.*ldb 0\\(sr0,r4\\),r26.*

would be a good start.  not sure which other ones will fail.  all the ld*
and wt*, i'm pretty sure.  maybe a few others.  i could work it out from
the manual, but let's wait for the computer to be able to do it for us?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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I've committed the patch.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre


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On Mon, Feb 24, 2003 at 01:07:53PM +0000, Matthew Wilcox wrote:
> 	* hppa-dis.c (print_insn_hppa): Implement fcnv instruction modifiers.

Applied.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre


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>-- Original Message --
>From: Matthew Wilcox <willy@debian.org>
>To: Joel Soete <jsoe0708@tiscali.be>
>Cc: parisc-linux@parisc-linux.org
>Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
>Date: Mon, 24 Feb 2003 17:50:13 +0000
>
>
>On Mon, Feb 24, 2003 at 06:42:39PM +0100, Joel Soete wrote:
>> sched.c:93: initializer element is not constant
>> sched.c:93: (near initialization for `tasklist_lock')
>> sched.c:93: initializer element is not constant
>[...]
>> which is precompile as:
>> rwlock_t tasklist_lock __attribute__((__aligned__(64))) = (rwlock_t) {
>(spinlock_t)
>> {1}, 0 };
>> 
>> What's wrong?
>
>looks like gcc broke this again.  for the moment, you can try taking
>out the casts.
>
Yes :(( 

This errors also occurs with 32bits gcc-3.2 as well as for gcc-3.3 (gcc-snapshot)
(but was not with gcc-3.0)

Thanks,
    Joel

PS: daya think a bg is required?

>-- 
>"It's not Hollywood.  War is real, war is primarily not about defeat or
>victory, it is about death.  I've seen thousands and thousands of dead bodies.
>Do you think I want to have an academic debate on this subject?" -- Robert
>Fisk
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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>
>>-- Original Message --
>>From: Matthew Wilcox <willy@debian.org>
>>To: Joel Soete <jsoe0708@tiscali.be>
>>Cc: parisc-linux@parisc-linux.org
>>Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
>>Date: Mon, 24 Feb 2003 17:50:13 +0000
>>
>>
>>On Mon, Feb 24, 2003 at 06:42:39PM +0100, Joel Soete wrote:
>>> sched.c:93: initializer element is not constant
>>> sched.c:93: (near initialization for `tasklist_lock')
>>> sched.c:93: initializer element is not constant
>>[...]
>>> which is precompile as:
>>> rwlock_t tasklist_lock __attribute__((__aligned__(64))) = (rwlock_t)
{
>>(spinlock_t)
>>> {1}, 0 };
>>> 
>>> What's wrong?
>>
>>looks like gcc broke this again.  for the moment, you can try taking
>>out the casts.
As struct spinlock_t is defined like:

typedef struct {
#ifdef CONFIG_PA20
        volatile unsigned int lock;
#else
        volatile unsigned int __attribute__((aligned(16))) lock;
#endif
#ifdef CONFIG_DEBUG_SPINLOCK
        volatile unsigned long owner_pc;
        volatile unsigned long owner_cpu;
#endif
} spinlock_t;

I take care to unset CONFIG_DEBUG_SPINLOCK (make menu) and so change in sched.c

#define RW_LOCK_UNLOCKED (rwlock_t) { { 1 } , 0 }

The good news was that I reach to compile the kernel :)
The bad one was that this kernel failled to boot :(

(As this N stand in a computer room, it is not easy to access the console
to grab more info :( , sorry)

Well, doesn't matter, I am already enough happy to be able to boot and work
with a N (even in up).

Thanks again for advises,
    Joel

>>
>Yes :(( 
>
>This errors also occurs with 32bits gcc-3.2 as well as for gcc-3.3 (gcc-snapshot)
>(but was not with gcc-3.0)
>
>Thanks,
>    Joel
>
>PS: daya think a bg is required?
>
>>-- 
>>"It's not Hollywood.  War is real, war is primarily not about defeat or
>>victory, it is about death.  I've seen thousands and thousands of dead
bodies.
>>Do you think I want to have an academic debate on this subject?" -- Robert
>>Fisk
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
>---------------------------------
>Vous surfez avec une ligne classique ?
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>
>
>_______________________________________________
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>-- Original Message --
>From: "Joel Soete" <jsoe0708@tiscali.be>
>Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
>To: "Matthew Wilcox" <willy@debian.org>
>Cc: parisc-linux@parisc-linux.org
>Date: Tue, 25 Feb 2003 18:00:42 +0100
>
>
>>
>>>-- Original Message --
>>>From: Matthew Wilcox <willy@debian.org>
>>>To: Joel Soete <jsoe0708@tiscali.be>
>>>Cc: parisc-linux@parisc-linux.org
>>>Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
>>>Date: Mon, 24 Feb 2003 17:50:13 +0000
>>>
>>>
>>>On Mon, Feb 24, 2003 at 06:42:39PM +0100, Joel Soete wrote:
>>>> sched.c:93: initializer element is not constant
>>>> sched.c:93: (near initialization for `tasklist_lock')
>>>> sched.c:93: initializer element is not constant
>>>[...]
>>>> which is precompile as:
>>>> rwlock_t tasklist_lock __attribute__((__aligned__(64))) = (rwlock_t)
>{
>>>(spinlock_t)
>>>> {1}, 0 };
>>>>
>>>> What's wrong?
>>>
>>>looks like gcc broke this again.  for the moment, you can try taking
>>>out the casts.
>As struct spinlock_t is defined like:
>
>typedef struct {
>#ifdef CONFIG_PA20
>        volatile unsigned int lock;
>#else
>        volatile unsigned int __attribute__((aligned(16))) lock;
>#endif
>#ifdef CONFIG_DEBUG_SPINLOCK
>        volatile unsigned long owner_pc;
>        volatile unsigned long owner_cpu;
>#endif
>} spinlock_t;
>
>I take care to unset CONFIG_DEBUG_SPINLOCK (make menu) and so change in
sched.c
>
>#define RW_LOCK_UNLOCKED (rwlock_t) { { 1 } , 0 }
>
>The good news was that I reach to compile the kernel :)
>The bad one was that this kernel failled to boot :(
>
>(As this N stand in a computer room, it is not easy to access the console
>to grab more info :( , sorry)
>
>Well, doesn't matter, I am already enough happy to be able to boot and
work
>with a N (even in up).
>
>Thanks again for advises,
>    Joel
>
>>>
>>Yes :((
>>
>>This errors also occurs with 32bits gcc-3.2 as well as for gcc-3.3 (gcc-snapshot)
>>(but was not with gcc-3.0)
>>
>>Thanks,
>>    Joel
>>
>>PS: daya think a bg is required?
>>

Very strange ???

folowing test case:
#include <stdio.h>

typedef struct {
        volatile unsigned int lock;
        volatile unsigned long owner_pc;
        volatile unsigned long owner_cpu;
} spinlock_t;

#define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 }

typedef struct {
        spinlock_t lock;
        volatile int counter;
} rwlock_t;

#define RW_LOCK_UNLOCKED (rwlock_t) { SPIN_LOCK_UNLOCKED, 0 }

int main(int argc, char * * argv, char * * env) {

    spinlock_t MySpinLock __attribute__((__aligned__(64))) =SPIN_LOCK_UNLOCKED;
    rwlock_t MyRWLock __attribute__((__aligned__(64))) = RW_LOCK_UNLOCKED;

    printf("MySpinLock->lock: %d\n", MySpinLock.lock);

    printf("MySpinLock->owner_pc: %d\n", MySpinLock.owner_pc);

    printf("MySpinLock->owner_cpu: %d\n", MySpinLock.owner_cpu);

    printf("MyRWLock->lock->lock: %d\n", MyRWLock.lock.lock);

    printf("MyRWLock->lock->owner_pc: %d\n", MyRWLock.lock.owner_pc);

    printf("MyRWLock->lock->owner_cpu: %d\n", MyRWLock.lock.owner_cpu);

    printf("MyRWLock->counter: %d\n", MyRWLock.counter);

    return 0;
}

with same options as for the kernel:
hppa64-linux-gcc -E -D__KERNEL__ -I/usr/include -I/usr/src/linux-2.4.20-pa27-64/include
-Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
-fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000
  -nostdinc -I /usr/lib/gcc-lib/hppa64-linux/3.2.3/include -DKBUILD_BASENAME=sched
 -fno-omit-frame-pointer -c -o TCast.o TCast.c

precompiles:
    spinlock_t MySpinLock __attribute__((__aligned__(64))) =(spinlock_t)
{ 1 };
    rwlock_t MyRWLock __attribute__((__aligned__(64))) = (rwlock_t) { (spinlock_t)
{ 1 }, 0 };

Excepted variable names, it seems to be very similar to the kernel src sched
which was:
# 92 "sched.c"
spinlock_t runqueue_lock __attribute__((__aligned__(64))) = (spinlock_t)
{ 1 };
rwlock_t tasklist_lock __attribute__((__aligned__(64))) = (rwlock_t) { (spinlock_t)
{ 1 }, 0 };


Never the less this testcase doesn't reproduce the mentionned pb?
Could it be that true is elsewhere?

Joel


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> int main(int argc, char * * argv, char * * env) {
> 
>     spinlock_t MySpinLock __attribute__((__aligned__(64))) =SPIN_LOCK_UNLOCKED;
>     rwlock_t MyRWLock __attribute__((__aligned__(64))) = RW_LOCK_UNLOCKED;

This does not work.  The aligned attribute doesn't work for automatic
variables and never has.  Structures allocated on the stack are allocated
with alignment BIGGEST_ALIGNMENT.  This should be a FAQ.

BIGGEST_ALIGNMENT is 128 bits on the 64-bit ports.  It is 64 on the 32-bit
port.  It is 128 in debian gcc 3.0.4 but this broke the hpux ABI regarding
the placement of long doubles in structures.  Thus, this change was
reverted the GCC CVS source.

Spinlocks on PA 2.0 machines don't need special alignment, although you
may want to keep them in separate cache lines.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hey all,

Did a search through the m-l archives, but couldn't find an answer to my question.  Has anyone gotten XFree up on a B2000 using the onboard graphics port (it's an FXE from what I gather)?  Or is everyone with a B2000 using a serial console?  I'm guessing the C3000 would fall into the same boat.  Thanks.

derek



---------------------------------
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<P>Hey all,</P>
<P>Did a search through the m-l archives, but couldn't find an answer to my question.&nbsp; Has anyone gotten XFree up on a B2000 using the onboard graphics port (it's an FXE from what I gather)?&nbsp; Or is everyone with a B2000 using a serial console?&nbsp; I'm guessing the C3000 would fall into the same boat.&nbsp; Thanks.</P>
<P>derek</P><p><br><hr size=1>Do you Yahoo!?<br>
<a href="http://rd.yahoo.com/finance/mailtagline/*http://taxes.yahoo.com/">Yahoo! Tax Center</a> - forms, calculators, tips, and more
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Subject: RE: [parisc-linux] B2000 revisited
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>-- Original Message --
>From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
>To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] B2000 revisited
>Date: Tue, 25 Feb 2003 23:10:31 -0800 (PST)
>
>
>
>Hey all,
>
>Did a search through the m-l archives, but couldn't find an answer to my
>question.  Has anyone gotten XFree up on a B2000 using the onboard graphics
>port (it's an FXE from what I gather)?  Or is everyone with a B2000 using
>a serial console?

Unfortunaltely under xfree86 there is not yet support for this gfx :(
And not yet news about potential sources availability (may be in a near future???)

>  I'm guessing the C3000 would fall into the same boat.

Could not help about this model.


> Thanks.
>
Well come,
    Joel

---------------------------------
Vous surfez avec une ligne classique ?
Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: RE: [parisc-linux] B2000 revisited
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Well, I threw my PCI EG card in there from my C360 and booted the netinst ISO in the IDE CDROM and I got the penquin with the user configuration interface so maybe once it's loaded I will be able to configure the XFree on the EG card.  Only time will tell at this point. 
derek 
 Joel Soete <jsoe0708@tiscali.be> wrote:

>-- Original Message --
>From: Derek Engelhaupt 
>To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] B2000 revisited
>Date: Tue, 25 Feb 2003 23:10:31 -0800 (PST)
>
>
>
>Hey all,
>
>Did a search through the m-l archives, but couldn't find an answer to my
>question. Has anyone gotten XFree up on a B2000 using the onboard graphics
>port (it's an FXE from what I gather)? Or is everyone with a B2000 using
>a serial console?

Unfortunaltely under xfree86 there is not yet support for this gfx :(
And not yet news about potential sources availability (may be in a near future???)

> I'm guessing the C3000 would fall into the same boat.

Could not help about this model.


> Thanks.
>
Well come,
Joel

---------------------------------
Vous surfez avec une ligne classique ?
Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




---------------------------------
Do you Yahoo!?
Yahoo! Tax Center - forms, calculators, tips, and more
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<P>Well, I threw my PCI EG card in there from my C360 and booted the netinst ISO in the IDE CDROM and I got the penquin with the user configuration interface so maybe once it's loaded I will be able to configure the XFree on the EG card.&nbsp; Only time will tell at this point. 
<P>derek 
<P>&nbsp;<B><I>Joel Soete &lt;jsoe0708@tiscali.be&gt;</I></B> wrote:</P>
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px"><BR>&gt;-- Original Message --<BR>&gt;From: Derek Engelhaupt <DEREKENGELHAUPT@ROCKETMAIL.COM><BR>&gt;To: parisc-linux@lists.parisc-linux.org<BR>&gt;Subject: [parisc-linux] B2000 revisited<BR>&gt;Date: Tue, 25 Feb 2003 23:10:31 -0800 (PST)<BR>&gt;<BR>&gt;<BR>&gt;<BR>&gt;Hey all,<BR>&gt;<BR>&gt;Did a search through the m-l archives, but couldn't find an answer to my<BR>&gt;question. Has anyone gotten XFree up on a B2000 using the onboard graphics<BR>&gt;port (it's an FXE from what I gather)? Or is everyone with a B2000 using<BR>&gt;a serial console?<BR><BR>Unfortunaltely under xfree86 there is not yet support for this gfx :(<BR>And not yet news about potential sources availability (may be in a near future
 ???)<BR><BR>&gt; I'm guessing the C3000 would fall into the same boat.<BR><BR>Could not help about this model.<BR><BR><BR>&gt; Thanks.<BR>&gt;<BR>Well come,<BR>Joel<BR><BR>---------------------------------<BR>Vous surfez avec une ligne classique ?<BR>Faites des economies avec Tiscali Complete<BR>... Plus d'info sur http://complete.tiscali.be<BR><BR></BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
<a href="http://rd.yahoo.com/finance/mailtagline/*http://taxes.yahoo.com/">Yahoo! Tax Center</a> - forms, calculators, tips, and more
--0-1702283638-1046270032=:85669--


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Subject: RE: [parisc-linux] B2000 revisited
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Excellent idea! I will try it this after noon!
  -----Original Message-----
  From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Derek
Engelhaupt
  Sent: Wednesday, February 26, 2003 6:34 AM
  To: parisc-linux@lists.parisc-linux.org
  Subject: RE: [parisc-linux] B2000 revisited


  Well, I threw my PCI EG card in there from my C360 and booted the netinst
ISO in the IDE CDROM and I got the penquin with the user configuration
interface so maybe once it's loaded I will be able to configure the XFree on
the EG card.  Only time will tell at this point.

  derek

   Joel Soete <jsoe0708@tiscali.be> wrote:


    >-- Original Message --
    >From: Derek Engelhaupt
    >To: parisc-linux@lists.parisc-linux.org
    >Subject: [parisc-linux] B2000 revisited
    >Date: Tue, 25 Feb 2003 23:10:31 -0800 (PST)
    >
    >
    >
    >Hey all,
    >
    >Did a search through the m-l archives, but couldn't find an answer to
my
    >question. Has anyone gotten XFree up on a B2000 using the onboard
graphics
    >port (it's an FXE from what I gather)? Or is everyone with a B2000
using
    >a serial console?

    Unfortunaltely under xfree86 there is not yet support for this gfx :(
    And not yet news about potential sources availability (may be in a near
future???)

    > I'm guessing the C3000 would fall into the same boat.

    Could not help about this model.


    > Thanks.
    >
    Well come,
    Joel

    ------------------ ---------------
    Vous surfez avec une ligne classique ?
    Faites des economies avec Tiscali Complete
    ... Plus d'info sur http://complete.tiscali.be






----------------------------------------------------------------------------
--
  Do you Yahoo!?
  Yahoo! Tax Center - forms, calculators, tips, and more

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<BODY>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D169353816-26022003>Excellent idea! I will try it this after=20
noon!</SPAN></FONT></DIV>
<BLOCKQUOTE>
  <DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
  size=3D2>-----Original Message-----<BR><B>From:</B>=20
  parisc-linux-admin@lists.parisc-linux.org=20
  [mailto:parisc-linux-admin@lists.parisc-linux.org]<B>On Behalf Of =
</B>Derek=20
  Engelhaupt<BR><B>Sent:</B> Wednesday, February 26, 2003 6:34 =
AM<BR><B>To:</B>=20
  parisc-linux@lists.parisc-linux.org<BR><B>Subject:</B> RE: =
[parisc-linux]=20
  B2000 revisited<BR><BR></FONT></DIV>
  <P>Well, I threw my PCI EG card in there from my C360 and booted the =
netinst=20
  ISO in the IDE CDROM and I got the penquin with the user configuration =

  interface so maybe once it's loaded I will be able to configure the =
XFree on=20
  the EG card.&nbsp; Only time will tell at this point.=20
  <P>derek=20
  <P>&nbsp;<B><I>Joel Soete &lt;jsoe0708@tiscali.be&gt;</I></B> =
wrote:</P>
  <BLOCKQUOTE=20
  style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px =
solid"><BR>&gt;--=20
    Original Message --<BR>&gt;From: Derek Engelhaupt=20
    <DEREKENGELHAUPT@ROCKETMAIL.COM><BR>&gt;To:=20
    parisc-linux@lists.parisc-linux.org<BR>&gt;Subject: [parisc-linux] =
B2000=20
    revisited<BR>&gt;Date: Tue, 25 Feb 2003 23:10:31 -0800=20
    (PST)<BR>&gt;<BR>&gt;<BR>&gt;<BR>&gt;Hey all,<BR>&gt;<BR>&gt;Did a =
search=20
    through the m-l archives, but couldn't find an answer to =
my<BR>&gt;question.=20
    Has anyone gotten XFree up on a B2000 using the onboard =
graphics<BR>&gt;port=20
    (it's an FXE from what I gather)? Or is everyone with a B2000 =
using<BR>&gt;a=20
    serial console?<BR><BR>Unfortunaltely under xfree86 there is not yet =
support=20
    for this gfx :(<BR>And not yet news about potential sources =
availability=20
    (may be in a near future???)<BR><BR>&gt; I'm guessing the C3000 =
would fall=20
    into the same boat.<BR><BR>Could not help about this =
model.<BR><BR><BR>&gt;=20
    Thanks.<BR>&gt;<BR>Well come,<BR>Joel<BR><BR>------------------=20
    ---------------<BR>Vous surfez avec une ligne classique ?<BR>Faites =
des=20
    economies avec Tiscali Complete<BR>... Plus d'info sur=20
    http://complete.tiscali.be<BR><BR></BLOCKQUOTE>
  <P><BR>
  <HR SIZE=3D1>
  Do you Yahoo!?<BR><A=20
  =
href=3D"http://rd.yahoo.com/finance/mailtagline/*http://taxes.yahoo.com/"=
>Yahoo!=20
  Tax Center</A> - forms, calculators, tips, and =
more</BLOCKQUOTE></BODY></HTML>

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I initially tried to load using the graphics console and the keyboard (USB) is having issues, but loading from serial console seems to work fine.  The load isn't complete as yet so I will have to see if XFree works once it's complete.
derek
 Dan Baker <dan_baker@eli.net> wrote:Excellent idea! I will try it this after noon!-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org [mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Derek Engelhaupt
Sent: Wednesday, February 26, 2003 6:34 AM
To: parisc-linux@lists.parisc-linux.org
Subject: RE: [parisc-linux] B2000 revisited


Well, I threw my PCI EG card in there from my C360 and booted the netinst ISO in the IDE CDROM and I got the penquin with the user configuration interface so maybe once it's loaded I will be able to configure the XFree on the EG card.  Only time will tell at this point. 
derek 
 Joel Soete <jsoe0708@tiscali.be> wrote:

>-- Original Message --
>From: Derek Engelhaupt 
>To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] B2000 revisited
>Date: Tue, 25 Feb 2003 23:10:31 -0800 (PST)
>
>
>
>Hey all,
>
>Did a search through the m-l archives, but couldn't find an answer to my
>question. Has anyone gotten XFree up on a B2000 using the onboard graphics
>port (it's an FXE from what I gather)? Or is everyone with a B2000 using
>a serial console?

Unfortunaltely under xfree86 there is not yet support for this gfx :(
And not yet news about potential sources availability (may be in a near future???)

> I'm guessing the C3000 would fall into the same boat.

Could not help about this model.


> Thanks.
>
Well come,
Joel

------------------ ---------------
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Content-Type: text/html; charset=us-ascii

<P>I initially tried to load using the graphics console and the keyboard (USB) is having issues, but loading from serial console seems to work fine.&nbsp; The load isn't complete as yet so I will have to see if XFree works once it's complete.
<P>derek
<P>&nbsp;<B><I>Dan Baker &lt;dan_baker@eli.net&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px"><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<META content="MSHTML 6.00.2800.1106" name=GENERATOR>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=169353816-26022003>Excellent idea! I will try it this after noon!</SPAN></FONT></DIV>
<BLOCKQUOTE>
<DIV align=left class=OutlookMessageHeader dir=ltr><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> parisc-linux-admin@lists.parisc-linux.org [mailto:parisc-linux-admin@lists.parisc-linux.org]<B>On Behalf Of </B>Derek Engelhaupt<BR><B>Sent:</B> Wednesday, February 26, 2003 6:34 AM<BR><B>To:</B> parisc-linux@lists.parisc-linux.org<BR><B>Subject:</B> RE: [parisc-linux] B2000 revisited<BR><BR></FONT></DIV>
<P>Well, I threw my PCI EG card in there from my C360 and booted the netinst ISO in the IDE CDROM and I got the penquin with the user configuration interface so maybe once it's loaded I will be able to configure the XFree on the EG card.&nbsp; Only time will tell at this point. 
<P>derek 
<P>&nbsp;<B><I>Joel Soete &lt;jsoe0708@tiscali.be&gt;</I></B> wrote:</P>
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px"><BR>&gt;-- Original Message --<BR>&gt;From: Derek Engelhaupt <DEREKENGELHAUPT@ROCKETMAIL.COM><BR>&gt;To: parisc-linux@lists.parisc-linux.org<BR>&gt;Subject: [parisc-linux] B2000 revisited<BR>&gt;Date: Tue, 25 Feb 2003 23:10:31 -0800 (PST)<BR>&gt;<BR>&gt;<BR>&gt;<BR>&gt;Hey all,<BR>&gt;<BR>&gt;Did a search through the m-l archives, but couldn't find an answer to my<BR>&gt;question. Has anyone gotten XFree up on a B2000 using the onboard graphics<BR>&gt;port (it's an FXE from what I gather)? Or is everyone with a B2000 using<BR>&gt;a serial console?<BR><BR>Unfortunaltely under xfree86 there is not yet support for this gfx :(<BR>And not yet news about potential sources availability (may be in a near future
 ???)<BR><BR>&gt; I'm guessing the C3000 would fall into the same boat.<BR><BR>Could not help about this model.<BR><BR><BR>&gt; Thanks.<BR>&gt;<BR>Well come,<BR>Joel<BR><BR>------------------ ---------------<BR>Vous surfez avec une ligne classique ?<BR>Faites des economies avec Tiscali Complete<BR>... Plus d'info sur http://complete.tiscali.be<BR><BR></BLOCKQUOTE>
<P><BR>
<HR SIZE=1>
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Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
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Hi Dave,

>-- Original Message --
>Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
>To: jsoe0708@tiscali.be (Joel Soete)
>From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>Cc: willy@debian.org, parisc-linux@parisc-linux.org
>Date: Tue, 25 Feb 2003 13:50:04 -0500 (EST)
>
>
>> int main(int argc, char * * argv, char * * env) {
>>
>>     spinlock_t MySpinLock __attribute__((__aligned__(64))) =SPIN_LOCK_UNLOCKED;
>>     rwlock_t MyRWLock __attribute__((__aligned__(64))) = RW_LOCK_UNLOCKED;
>
>This does not work.  The aligned attribute doesn't work for automatic
>variables and never has.  Structures allocated on the stack are allocated
>with alignment BIGGEST_ALIGNMENT.  This should be a FAQ.
>
>BIGGEST_ALIGNMENT is 128 bits on the 64-bit ports.  It is 64 on the 32-bit
>port.  It is 128 in debian gcc 3.0.4 but this broke the hpux ABI regarding
>the placement of long doubles in structures.  Thus, this change was
>reverted the GCC CVS source.
>
>Spinlocks on PA 2.0 machines don't need special alignment, although you
>may want to keep them in separate cache lines.
>

Sorry in advance if I missunderstood.

Ok, ow the test case which actually reproduce the problem is:
#include <stdio.h>

typedef struct {
        volatile unsigned int lock;
        volatile unsigned long owner_pc;
        volatile unsigned long owner_cpu;
} spinlock_t;

#define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 }

typedef struct {
        spinlock_t lock;
        volatile int counter;
} rwlock_t;

#define RW_LOCK_UNLOCKED (rwlock_t) { SPIN_LOCK_UNLOCKED, 0 }

spinlock_t MySpinLock __attribute__((__aligned__(64))) =SPIN_LOCK_UNLOCKED;
rwlock_t MyRWLock __attribute__((__aligned__(64))) = RW_LOCK_UNLOCKED;

int main(int argc, char * * argv, char * * env) {

    printf("MySpinLock->lock: %d\n", MySpinLock.lock);

    printf("MySpinLock->owner_pc: %d\n", MySpinLock.owner_pc);

    printf("MySpinLock->owner_cpu: %d\n", MySpinLock.owner_cpu);

    printf("MyRWLock->lock->lock: %d\n", MyRWLock.lock.lock);

    printf("MyRWLock->lock->owner_pc: %d\n", MyRWLock.lock.owner_pc);

    printf("MyRWLock->lock->owner_cpu: %d\n", MyRWLock.lock.owner_cpu);

    printf("MyRWLock->counter: %d\n", MyRWLock.counter);

    return 0;
}

Would I have to open a bug report near gcc with this one?


>Dave
>--
>J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
>National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)
>_______________________________________________

Thanks again,
    Joel



---------------------------------
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Subject: RE: [parisc-linux] B2000 revisited
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Derek,

>-- Original Message --
>From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
>Subject: RE: [parisc-linux] B2000 revisited
>To: parisc-linux@lists.parisc-linux.org
>Date: Wed, 26 Feb 2003 09:59:29 -0800 (PST)
>
>
>
>I initially tried to load using the graphics console and the keyboard (USB)
>is having issues, but loading from serial console seems to work fine.  The
>load isn't complete as yet so I will have to see if XFree works once it's
>complete.

If you could see (even if you boot from a serial console) a penguin on your
graphical screen, it is very good.
Grab a XF86Config-4 config file (may be change the definition and depth according
to the dmesg info about ... stifb 1288*1024-8)

Good luck,
    Joel


> Dan Baker <dan_baker@eli.net> wrote:Excellent idea! I will try it this
after
>noon!-----Original Message-----
>From: parisc-linux-admin@lists.parisc-linux.org [mailto:parisc-linux-admin@lists.parisc-linux.org]On
>Behalf Of Derek Engelhaupt
>Sent: Wednesday, February 26, 2003 6:34 AM
>To: parisc-linux@lists.parisc-linux.org
>Subject: RE: [parisc-linux] B2000 revisited
>
>
>Well, I threw my PCI EG card in there from my C360 and booted the netinst
>ISO in the IDE CDROM and I got the penquin with the user configuration interface
>so maybe once it's loaded I will be able to configure the XFree on the EG
>card.  Only time will tell at this point. 
>derek 
> Joel Soete <jsoe0708@tiscali.be> wrote:
>
>>-- Original Message --
>>From: Derek Engelhaupt 
>>To: parisc-linux@lists.parisc-linux.org
>>Subject: [parisc-linux] B2000 revisited
>>Date: Tue, 25 Feb 2003 23:10:31 -0800 (PST)
>>
>>
>>
>>Hey all,
>>
>>Did a search through the m-l archives, but couldn't find an answer to my
>>question. Has anyone gotten XFree up on a B2000 using the onboard graphics
>>port (it's an FXE from what I gather)? Or is everyone with a B2000 using
>>a serial console?
>
>Unfortunaltely under xfree86 there is not yet support for this gfx :(
>And not yet news about potential sources availability (may be in a near
future???)
>
>> I'm guessing the C3000 would fall into the same boat.
>
>Could not help about this model.
>
>
>> Thanks.
>>
>Well come,
>Joel
>
>------------------ ---------------
>Vous surfez avec une ligne classique ?
>Faites des economies avec Tiscali Complete
>... Plus d'info sur http://complete.tiscali.be
>
>
>
>
>---------------------------------
>Do you Yahoo!?
>Yahoo! Tax Center - forms, calculators, tips, and more
>
>
>---------------------------------
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---------------------------------
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>-- Original Message --
>From: "Joel Soete" <jsoe0708@tiscali.be>
>Subject: RE: [parisc-linux] B2000 revisited
>To: "Derek Engelhaupt" <derekengelhaupt@rocketmail.com>,
>	parisc-linux@lists.parisc-linux.org
>Date: Wed, 26 Feb 2003 19:42:59 +0100
>
>
>Derek,
>
>>-- Original Message --
>>From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
>>Subject: RE: [parisc-linux] B2000 revisited
>>To: parisc-linux@lists.parisc-linux.org
>>Date: Wed, 26 Feb 2003 09:59:29 -0800 (PST)
>>
>>
>>
>>I initially tried to load using the graphics console and the keyboard (USB)
>>is having issues, but loading from serial console seems to work fine. 
The
>>load isn't complete as yet so I will have to see if XFree works once it's
>>complete.
>
>If you could see (even if you boot from a serial console) a penguin on your
>graphical screen, it is very good.
>Grab a XF86Config-4 config file (may be change the definition and depth
according
>to the dmesg info about ... stifb 1288*1024-8)
>
May be in much details:

in your dmesg you should find
...
STI device: INTERNAL...
...
fb0: stifb 1280*1024-8 frame buffer device
           ^^^^^^^^^ ^

If your device is well supported (if not it would tell it),
in the XF86Config-4, you should match in Section "Screen" your actual DefaultDepth
with here 8 (from -8 above) and in the corresponding SubSection "Display"
your actual Modes: here 1280*1024 (and only this; switching is not possible)

hth,
    Joel

>Good luck,
>    Joel
>
>
>> Dan Baker <dan_baker@eli.net> wrote:Excellent idea! I will try it this
>after
>>noon!-----Original Message-----
>>From: parisc-linux-admin@lists.parisc-linux.org [mailto:parisc-linux-admin@lists.parisc-linux.org]On
>>Behalf Of Derek Engelhaupt
>>Sent: Wednesday, February 26, 2003 6:34 AM
>>To: parisc-linux@lists.parisc-linux.org
>>Subject: RE: [parisc-linux] B2000 revisited
>>
>>
>>Well, I threw my PCI EG card in there from my C360 and booted the netinst
>>ISO in the IDE CDROM and I got the penquin with the user configuration
interface
>>so maybe once it's loaded I will be able to configure the XFree on the
EG
>>card.  Only time will tell at this point. 
>>derek 
>> Joel Soete <jsoe0708@tiscali.be> wrote:
>>
>>>-- Original Message --
>>>From: Derek Engelhaupt 
>>>To: parisc-linux@lists.parisc-linux.org
>>>Subject: [parisc-linux] B2000 revisited
>>>Date: Tue, 25 Feb 2003 23:10:31 -0800 (PST)
>>>
>>>
>>>
>>>Hey all,
>>>
>>>Did a search through the m-l archives, but couldn't find an answer to
my
>>>question. Has anyone gotten XFree up on a B2000 using the onboard graphics
>>>port (it's an FXE from what I gather)? Or is everyone with a B2000 using
>>>a serial console?
>>
>>Unfortunaltely under xfree86 there is not yet support for this gfx :(
>>And not yet news about potential sources availability (may be in a near
>future???)
>>
>>> I'm guessing the C3000 would fall into the same boat.
>>
>>Could not help about this model.
>>
>>
>>> Thanks.
>>>
>>Well come,
>>Joel
>>
>>------------------ ---------------
>>Vous surfez avec une ligne classique ?
>>Faites des economies avec Tiscali Complete
>>... Plus d'info sur http://complete.tiscali.be
>>
>>
>>
>>
>>---------------------------------
>>Do you Yahoo!?
>>Yahoo! Tax Center - forms, calculators, tips, and more
>>
>>
>>---------------------------------
>>Do you Yahoo!?
>>Yahoo! Tax Center - forms, calculators, tips, and more
>
>
>---------------------------------
>Vous surfez avec une ligne classique ?
>Faites des economies avec Tiscali Complete
>... Plus d'info sur http://complete.tiscali.be
>
>
>_______________________________________________
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From - Thu Nov 08 21:26:54 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
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> Would I have to open a bug report near gcc with this one?

You mean for the errors:

joel.c:19: error: initializer element is not constant
joel.c:19: error: (near initialization for `MyRWLock')
joel.c:19: error: initializer element is not constant

No, fix the code.  I don't believe you will win this one.  This
feature (extension) was deliberately removed from GCC.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
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On Wed, Feb 26, 2003 at 01:58:57PM -0500, John David Anglin wrote:
> > Would I have to open a bug report near gcc with this one?
> 
> You mean for the errors:
> 
> joel.c:19: error: initializer element is not constant
> joel.c:19: error: (near initialization for `MyRWLock')
> joel.c:19: error: initializer element is not constant
> 
> No, fix the code.  I don't believe you will win this one.  This
> feature (extension) was deliberately removed from GCC.

I think it was an error to do so.  I do not see how

	(spinlock_t) { 1 }

is any more or less constant than

	{ 1 }

Removing this extension is a bad idea because it removes the ability to
do typechecking.  For example,

	rwlock_t lock = SPIN_LOCK_INIT;

would throw an error with a cast and not without.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Andreas Schwab <schwab@suse.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
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Matthew Wilcox <willy@debian.org> writes:

|> On Wed, Feb 26, 2003 at 01:58:57PM -0500, John David Anglin wrote:
|> > > Would I have to open a bug report near gcc with this one?
|> > 
|> > You mean for the errors:
|> > 
|> > joel.c:19: error: initializer element is not constant
|> > joel.c:19: error: (near initialization for `MyRWLock')
|> > joel.c:19: error: initializer element is not constant
|> > 
|> > No, fix the code.  I don't believe you will win this one.  This
|> > feature (extension) was deliberately removed from GCC.
|> 
|> I think it was an error to do so.  I do not see how
|> 
|> 	(spinlock_t) { 1 }
|> 
|> is any more or less constant than
|> 
|> 	{ 1 }

A compound literal is not a constant, but an unnamed object.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nrnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
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> On Wed, Feb 26, 2003 at 01:58:57PM -0500, John David Anglin wrote:
> > > Would I have to open a bug report near gcc with this one?
> > 
> > You mean for the errors:
> > 
> > joel.c:19: error: initializer element is not constant
> > joel.c:19: error: (near initialization for `MyRWLock')
> > joel.c:19: error: initializer element is not constant
> > 
> > No, fix the code.  I don't believe you will win this one.  This
> > feature (extension) was deliberately removed from GCC.
> 
> I think it was an error to do so.  I do not see how
> 
> 	(spinlock_t) { 1 }
> 
> is any more or less constant than
> 
> 	{ 1 }
> 
> Removing this extension is a bad idea because it removes the ability to
> do typechecking.  For example,
> 
> 	rwlock_t lock = SPIN_LOCK_INIT;
> 
> would throw an error with a cast and not without.

GCC allows the above cast.  What is not ok is a non-arithmentic cast
operator within an arithmetic constant expression (initializer).  In
ISO C, cast operators in an arithmetic constant expression shall only
convert arithmetic types to arithmetic types, except as part of an
operand to the sizeof operator.  See section 6.6 in the ISO C standard.

Joel's example contained a non-arithmetic cast within an arithmetic
expression.  Possibly, GCC could have continued to allow casts to
aggregate types, but a decision was made not to.  I know glibc has
had to adapt similar code.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


From - Thu Nov 08 21:26:54 2018
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From: Jesse Dougherty <jesse@cypress-tech.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP 9000 and 3000 Servers & Workstations
Date: Wed, 26 Feb 2003 16:33:52 -0800
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   Hi there, my name is Jesse and I work for Cypress Technology, Inc. I
would like to introduce our company to you: Cypress Technology is a
reseller of Hewlett-Packard 9000/Unix, 3000/MPE/Ix, and related
peripheral hardware. We have been buying and selling HP products for 8
years. Our company is located in Clearwater, FL, USA but we ship used /
refurbished products worldwide.

  Please feel free to take a look at the HP 9000 and 3000 products we
sell, we have a refurbished price list that is updated weekly at the
Specials button on our front page at. www.cypress-tech.com

Feel free to call or email if you have any HP hardware that you wish to
sell or to get a market value of what your hardware is worth. We are
currently searching for HP VME bus boards.

Thanks for your time

Jesse Dougherty
Cypress Technology, Inc
Re-Sellers of HP 3000/9000 products
12890 Automobile Blvd, Clearwater, FL 33762
727-557-0911 / fax 727-557-0014
www.cypress-tech.com
jesse@cypress-tech.com




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"John David Anglin" <dave@hiauly1.hia.nrc.ca> writes:

|> > I think it was an error to do so.  I do not see how
|> > 
|> > 	(spinlock_t) { 1 }
|> > 
|> > is any more or less constant than
|> > 
|> > 	{ 1 }
|> > 
|> > Removing this extension is a bad idea because it removes the ability to
|> > do typechecking.  For example,
|> > 
|> > 	rwlock_t lock = SPIN_LOCK_INIT;
|> > 
|> > would throw an error with a cast and not without.
|> 
|> GCC allows the above cast.

This is not a cast, it's a compound literal.

Andreas.

-- 
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SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nrnberg
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> This is not a cast, it's a compound literal.

You of course are correct.  However, the GCC documentation says:

  ISO C99 supports compound literals.  A compound literal looks like
  a cast containing an initializer.  Its value is an object of the
  type specified in the cast, containing the elements specified in
  the initializer; it is an lvalue.  As an extension, GCC supports
  compound literals in C89 mode and in C++.

  Compound literals for scalar types and union types are is
  also allowed, but then the compound literal is equivalent
  to a cast.

  As a GNU extension, GCC allows initialization of objects with static storage
  duration by compound literals (which is not possible in ISO C99, because
  the initializer is not a constant).
  It is handled as if the object was initialized only with the bracket
  enclosed list if compound literal's and object types match.
  The initializer list of the compound literal must be constant.

So, the basic point is that the nesting of compound literals isn't
allowed because they are not a constant.  Cast operators in the
initializer portion of a compound literal can only convert arithmetic
types to arithmentic types, except as noted for the sizeof operator.

Unless you use the capability of compound literals to coerce to a
pointer to its first element, it doesn't appear that there is much
benefit in using compound literals for non-automatic data.

In Joel's case, the initializer only needs to contain constant
expressions and doesn't require a construction, even when the define
for RW_LOCK_UNLOCKED is done as a compound literal.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Hi all,

>-- Original Message --
>To: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>Cc: willy@debian.org (Matthew Wilcox), parisc-linux@parisc-linux.org,
>	gcc@gcc.gnu.org
>Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
>From: Andreas Schwab <schwab@suse.de>
>Date: Wed, 26 Feb 2003 22:48:20 +0100
>
>
>"John David Anglin" <dave@hiauly1.hia.nrc.ca> writes:
>
>|> > I think it was an error to do so.  I do not see how
>|> > 
>|> > 	(spinlock_t) { 1 }
>|> > 
>|> > is any more or less constant than
>|> > 
>|> > 	{ 1 }
>|> > 
>|> > Removing this extension is a bad idea because it removes the ability
>to
>|> > do typechecking.  For example,
>|> > 
>|> > 	rwlock_t lock = SPIN_LOCK_INIT;
>|> > 
>|> > would throw an error with a cast and not without.
>|> 
>|> GCC allows the above cast.
>
>This is not a cast, it's a compound literal.
>
>Andreas.
>
>-- 
>Andreas Schwab, SuSE Labs, schwab@suse.de
>SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nrnberg
>Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
>"And now for something completely different."
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

Thanks to all for this clarification.

Never the less, I would like to put an additional question:

the mentionned error occurs when this variable is a global one
but when it became local (e.g. when I define it into main() ) the error doesn't
occur anynore (I do not presume of the resulting code).
So what is the conceptual difference?

Thanks in advance for additional help,
   Joel


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Heaps of serious ram for HP systems, I am not altogether sure if the ram
works for other systems however I have thousands of sticks from 64megs
through to 512meg sticks


Offers welcome

Chris Christie

info@wias.net.au





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>-- Original Message --
>Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
>To: jsoe0708@tiscali.be (Joel Soete)
>From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>Cc: willy@debian.org, parisc-linux@parisc-linux.org
>Date: Wed, 26 Feb 2003 13:58:57 -0500 (EST)
>
>
>> Would I have to open a bug report near gcc with this one?
>
>You mean for the errors:
>
>joel.c:19: error: initializer element is not constant
>joel.c:19: error: (near initialization for `MyRWLock')
>joel.c:19: error: initializer element is not constant
>
>No, fix the code.  I don't believe you will win this one.  This
>feature (extension) was deliberately removed from GCC.
>
Well I first choose the facility:

I remove the cast so that in asm-parisc/spinclok_t.h
...
#ifndef CONFIG_DEBUG_SPINLOCK
#define SPIN_LOCK_UNLOCKED { 1 }
...
#else

#define SPIN_LOCK_UNLOCKED { 1, 0L, 0L }
...

but it breacks many code else where fork.c, raid1.c, raid5.c,...
where it is easy to recast.

Any better idea?

Joel
 

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> Never the less, I would like to put an additional question:
> the mentionned error occurs when this variable is a global one
> but when it became local (e.g. when I define it into main() ) the error doesn't
> occur anynore (I do not presume of the resulting code).
> So what is the conceptual difference?

If you look at the assembly code, you will see that the initialization
is done entirely in code when RW_LOCK_UNLOCKED is used to initialize
a local.  You can handle more complex initializers when you use code
to initialize an object.  When global or static storage is initialized,
the initialized values are placed directly into a data section.  C++
has constructors to do more complex initializations but this isn't
present in standard C.

The reason as to why GCC can't handle your example when it could before
has to do with the alignment of GCC to ISO C.  Constraint "3" in the
standard states that "If the compound literal occurs outside the body
of a function, the initializer list shall consist of constant expressions."
Also, as Andreas said, "the value of a compound literal is that of an
unnamed object initialized by the initializer list".  You would get
the same error trying to do an initialization using a named object:

  struct a { int i; } a = { 1 };
  struct b { struct a x; } b = { a };

I think you want to avoid using compound literals for you particular
initialization.  You don't need the capability of compound literals
to initialize an object type or an array of unknown size, or that
each compound literal creates only a single object in a given scope
(this is useful if the initializer values aren't constant).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> I remove the cast so that in asm-parisc/spinclok_t.h
> ...
> #ifndef CONFIG_DEBUG_SPINLOCK
> #define SPIN_LOCK_UNLOCKED { 1 }
> ...
> #else
> 
> #define SPIN_LOCK_UNLOCKED { 1, 0L, 0L }

You probably don't need the 0's.  When there a fewer initializers in a brace
enclosed list than there are elements or members of an aggregate, they are
implicitly initialized the same as objects that have static storage duration.

> but it breacks many code else where fork.c, raid1.c, raid5.c,...
> where it is easy to recast.

Glibc linuxthreads defines two initializers in the pthread code, one
using compound literals and the other using standard initializer lists.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
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>-- Original Message --
>Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
>To: jsoe0708@tiscali.be (Joel Soete)
>From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>Cc: willy@debian.org, parisc-linux@parisc-linux.org
>Date: Thu, 27 Feb 2003 12:17:18 -0500 (EST)
>
>
>> I remove the cast so that in asm-parisc/spinclok_t.h
>> ...
>> #ifndef CONFIG_DEBUG_SPINLOCK
>> #define SPIN_LOCK_UNLOCKED { 1 }
>> ...
>> #else
>> 
>> #define SPIN_LOCK_UNLOCKED { 1, 0L, 0L }
>
>You probably don't need the 0's.  When there a fewer initializers in a brace
>enclosed list than there are elements or members of an aggregate, they are
>implicitly initialized the same as objects that have static storage duration.
>
>> but it breacks many code else where fork.c, raid1.c, raid5.c,...
>> where it is easy to recast.
>
>Glibc linuxthreads defines two initializers in the pthread code, one
>using compound literals and the other using standard initializer lists.
>
I will have a look (it will just have to wait two weeks because of Sun course
about 6800)

Thanks a lot,
    Joel

>Dave
>-- 
>J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
>National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: [parisc-linux] Re: question about pa-risc linux on hp b2600 workstation
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On Thu, 27 Feb 2003 10:40:42 -0500
"Copeland, Daniel" <Daniel.Copeland@alcoa.com> wrote:

> Hello,
> 
> Did you have to get special usb drivers to be able to install?  I downloaded
> the debian v. 3.0 iso and it boots fine, I just can't acknowledge w/ my
> keyboard...

perhaps you should read the section related to b2600 on this page:
http://pateam.esiee.fr/list.html

the mailing-list archive:
http://www.fr.parisc-linux.org/mailing-lists/

eventually the FAQ (there's an entry about USB keyboards)
http://www.fr.parisc-linux.org/faq/

and the Boot HOWTO
http://pateam.esiee.fr/doc.html

everything is explained there.

you need one of the latest netinst isos to install your box:
http://pateam.esiee.fr/download.html

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

(mail CC'd to the m-l to feed the archive)


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Hi all,


>-- Original Message --
>Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
>To: jsoe0708@tiscali.be (Joel Soete)
>From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>Cc: willy@debian.org, parisc-linux@parisc-linux.org
>Date: Thu, 27 Feb 2003 12:17:18 -0500 (EST)
>
>
>> I remove the cast so that in asm-parisc/spinclok_t.h
>> ...
>> #ifndef CONFIG_DEBUG_SPINLOCK
>> #define SPIN_LOCK_UNLOCKED { 1 }
>> ...
>> #else
>> 
>> #define SPIN_LOCK_UNLOCKED { 1, 0L, 0L }
>
>You probably don't need the 0's.  When there a fewer initializers in a brace
>enclosed list than there are elements or members of an aggregate, they are
>implicitly initialized the same as objects that have static storage duration.
>
>> but it breacks many code else where fork.c, raid1.c, raid5.c,...
>> where it is easy to recast.
>
>Glibc linuxthreads defines two initializers in the pthread code, one
>using compound literals and the other using standard initializer lists.
>
Sorry Dave I do not find this stuff.

Any way after some sleep, I find this kind patches:

--- include/asm-parisc/spinlock_t.h.orig	2003-02-28 09:12:26.000000000 +0100
+++ include/asm-parisc/spinlock_t.h	2003-02-28 12:51:37.000000000 +0100
@@ -47,7 +47,9 @@
 } spinlock_t;
 
 #ifndef CONFIG_DEBUG_SPINLOCK
-#define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 }
+/* This following change because of gcc-3.2 limits for C99 compliance */
+#define C_SPIN_LOCK_UNLOCKED { 1 }
+#define SPIN_LOCK_UNLOCKED (spinlock_t) C_SPIN_LOCK_UNLOCKED
 
 /* Define 6 spinlock primitives that don't depend on anything else. */
 
@@ -79,7 +81,9 @@
 
 #else
 
-#define SPIN_LOCK_UNLOCKED (spinlock_t) { 1, 0, 0 }
+/* This following change because of gcc-3.2 limits for C99 compliance */
+#define C_SPIN_LOCK_UNLOCKED { 1, 0L, 0L }
+#define SPIN_LOCK_UNLOCKED (spinlock_t) C_SPIN_LOCK_UNLOCKED
 
 /* Define 6 spinlock primitives that don't depend on anything else. */
--- include/asm-parisc/spinlock.h.orig	2003-02-19 18:05:55.000000000 +0100
+++ include/asm-parisc/spinlock.h	2003-02-28 09:45:10.000000000 +0100
@@ -14,7 +14,7 @@
 	volatile int counter;
 } rwlock_t;
 
-#define RW_LOCK_UNLOCKED (rwlock_t) { SPIN_LOCK_UNLOCKED, 0 }
+#define RW_LOCK_UNLOCKED (rwlock_t) { C_SPIN_LOCK_UNLOCKED, 0 }
 
 #define rwlock_init(lp)	do { *(lp) = RW_LOCK_UNLOCKED; } while (0)

Well I prefer to save "{ 1, 0L, 0L }" because I am never sure about what
is (how) and what is not initialised in C.

I test it on gcc-3.2 64bits and I obtain a a kernel (I will try to boot it
latter).

Any better idea?

Joel


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To: 'Thibaut VARENE' <varenet@esiee.fr>
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Xref: news.gmane.org gmane.linux.ports.parisc:17817

Thanks.  The latest netinst iso worked...

-----Original Message-----
From: Thibaut VARENE [mailto:varenet@esiee.fr]
Sent: Thursday, February 27, 2003 6:51 PM
To: Copeland, Daniel
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: question about pa-risc linux on hp b2600 workstation


On Thu, 27 Feb 2003 10:40:42 -0500
"Copeland, Daniel" <Daniel.Copeland@alcoa.com> wrote:

> Hello,
> 
> Did you have to get special usb drivers to be able to install?  I
downloaded
> the debian v. 3.0 iso and it boots fine, I just can't acknowledge w/ my
> keyboard...

perhaps you should read the section related to b2600 on this page:
http://pateam.esiee.fr/list.html

the mailing-list archive:
http://www.fr.parisc-linux.org/mailing-lists/

eventually the FAQ (there's an entry about USB keyboards)
http://www.fr.parisc-linux.org/faq/

and the Boot HOWTO
http://pateam.esiee.fr/doc.html

everything is explained there.

you need one of the latest netinst isos to install your box:
http://pateam.esiee.fr/download.html

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

(mail CC'd to the m-l to feed the archive)


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Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
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To: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:17818

>Hi all,
>
>
>I test it on gcc-3.2 64bits and I obtain a a kernel (I will try to boot
it
>latter).
>

And as announce it failled to boot :( 

Here is the boot log:

Firmware Version  41.28

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst  
 Data
  ---------  --------   ---------------------  -----------------  ------------
      1      550  MHz   Active                 Functional         512 KB
  1 MB
      3      550  MHz   Idle                   Functional         512 KB
  1 MB

  Central Bus Speed (in MHz)  :        133  
  Available Memory            :    4194304  KB
  Good Memory Required        :      15364  KB

   Primary boot path:    0/0/2/1.6           
   Alternate boot path:  0/0/2/1.6           
   Console path:         0/0/4/1.0           
   Keyboard path:        0/0/4/0.0           


---- Main Menu ---------------------------------------------------------------

----
Main Menu: Enter command or menu > bo extscsi.8
Interact with IPL (Y, N, or Cancel)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.2 root@b2000 Tue Jan 14 13:13:07 MST 2003
Information: Boot device can't seek past 2Gb (ignore next error).byteio_read:
seekread() returned -1 expected 2048

Partition Start(MB) End(MB) Id Type
1               1      63   f0 Palo
2              64     188   83 ext2
3             189     313   82 swap
5             314    2000   83 ext2
6            2001    2250   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 3687647 bytes @ 0x44000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).Current
command line:
2/vmlinux root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
 0: 2/vmlinux
 1: root=/dev/sda5
 2: HOME=/
 3: console=ttyS0
 4: TERM=vt102

Edit which field?
(or 'b' to boot with this command line)? 0
2/vmlinux-2.4.20-pa27-smp64
Current command line:
2/vmlinux-2.4.20-pa27-smp64 root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
 0: 2/vmlinux-2.4.20-pa27-smp64
 1: root=/dev/sda5
 2: HOME=/
 3: console=ttyS0
 4: TERM=vt102

Edit which field?
(or 'b' to boot with this command line)? b

Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
palo_kernel=2/vmlinux-2.4.20-pa27-smp64'
Selected kernel: /vmlinux-2.4.20-pa27-smp64 from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 2907552 mediaptr 0x1000
Segment 1 load 003c6000 size 1407360 mediaptr 0x2c7000
Segment 2 load 00520000 size 344064 mediaptr 0x41f000
Segment 3 load 00578000 size 32768 mediaptr 0x473000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org


********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       OFF           OFF       ON         ON
LED State: System running normally.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-1: rev 0x37 on pci bus 0 device 2 function 1 irq 131
sym53c875-1: ID 7, Fast-20, Parity Checking
sym53c895-2: rev 0x1 on pci bus 0 device 1 function 0 irq 129
sym53c895-2: ID 7, Fast-20, Parity Checking
sym53c895-2: SCSI bus mode change from 80 to 80.
scsi0 : sym53c8xx-1.7.3c-20010512
scsi1 : sym53c8xx-1.7.3c-20010512
scsi2 : sym53c8xx-1.7.3c-20010512
blk: queue 000000008fa50e40, I/O limit 4095Mb (mask 0xffffffff)
  Vendor: SEAGATE   Model: ST39140WS         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
blk: queue 000000008fa50c40, I/O limit 4095Mb (mask 0xffffffff)
Attached scsi disk sda at scsi2, channel 0, id 8, lun 0
sym53c895-2-<8,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 sda10 sda11 >
STI GSC/PCI graphics driver version 0.9
BUG: Skipping previously registered driver: sti (native)
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :  2504.400 MB/sec
   8regs_prefetch:  1856.000 MB/sec
   32regs    :  2067.600 MB/sec
   32regs_prefetch:  1946.000 MB/sec
raid5: using function: 8regs (2504.400 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 2048 buckets, 80Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 318k freed
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       OFF           OFF       ON         ON
LED State: System running normally.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************

************* SYSTEM ALERT **************
SYSTEM NAME: ap8002
DATE: 02/28/2003 TIME: 15:19:37
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

0x0000107000FF6292 000000FF FF800000 - type  0 = Data Field Unused
0x5800187000FF6292 00006701 1C0F1325 - type 11 = Timestamp 02/28/2003 15:19:37
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice: 
*****************************************

...

and the pim info


Service Menu: Enter command > pim


PROCESSOR PIM INFORMATION

Original Product Number:  A3639C
Current Product Number:   A3639C


-------  Processor 1 HPMC Information - PDC Version: 41.28   ------ 

Timestamp =    Fri Feb  28 15:19:35 GMT 2003    (20:03:02:28:15:19:35)

HPMC Chassis Codes 

       Chassis Code        Extension 
       ------------        --------- 
       0x0000082000ff6242  0x0000000000000000
       0x1800082011016312  0xcb81000000000000
       0x0000087000ff6292  0x000000ffff800000
       0x6000082013016062  0x2002000000080000
       0x6000082013016072  0x0000000000080000
       0x7000082013016082  0x0000000000192200
       0x6000082013036062  0x2001000000082004
       0x6000082013036072  0x0000000000082000
       0x7000082013036082  0x0000000000992600
       0x6000082070006062  0x0000000000080000
       0x6000082070006072  0x0000000000080000
       0x7000082070006082  0x0000000000192200
       0x6000082070016062  0x0000000000000800
       0x6000082070016072  0x0000000000000800
       0x7000082070016082  0x00000000001a4400
       0x0000080080006310  0x0000000000000001
       0x7000082082006333  0x0000000000b92200
       0x7000082082016333  0x0000000000b92200
       0x000008008000631f  0x0000000000000000
       0x0000082000ff6452  0x0000000000000000
       0x0000082000ff6402  0x0000000000000000
       0x0000080080006300  0x0000000000000001
       0x7000082082006333  0x0000000000b92200
       0x7000082382006343  0x0000000000070200
       0x7000082382016343  0x0000000000070200
       0x7000082382026343  0x0000000000070200
       0x7000082382046343  0x0000000000070200
       0x7000082382056343  0x0000000000070200
       0x7000082382086343  0x0000000000070200
       0x70000823820a6343  0x0000000000070200
       0x70000823820c6343  0x0000000000070200
       0x7000082082016333  0x0000000000b92200
       0x7000082382106343  0x0000000000070200
       0x7000082382126343  0x0000000000070200
       0x7000082382146343  0x0000000000070200
       0x7000082382186343  0x0000000000070200
       0x70000823821a6343  0x0000000000070200
       0x70000823821c6343  0x0000000000070200
       0x0000080089006200  0x0000000000000000
       0x0000082389006200  0x0000000000000000
       0x0000080086006200  0x0000000000000000
       0x000008008000630f  0x0000000000000000
       

General Registers 0 - 31
00-03  0000000000000000  0000000010516300  000000001014d6ec  0000000010507b00
04-07  000000008f0c8000  0000000010431788  000000008f093000  0000000010000000
08-11  000000001349c2b0  000000001349d4e8  000000007f093b25  0000000010565d00
12-15  00000000faf00b2c  0000000010565d60  000000008f677ec0  000000008f675800
16-19  000000001349d4e8  0000000000005000  00000000faf005e0  0000000000000180
20-23  0000000010565d00  00000000002f7465  00000000003f45a2  000fe18fffc079c0
24-27  000000007f0c8b27  000fe18fffc079c0  0000000000575898  0000000010507b00
28-31  000000000007f0c8  003f86400007f0c8  000000008f67cf40  0000000000008ba3


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000006  0000000000000000  00000000000000c0  000000000000003f
12-15  0000000000000000  0000000000000000  0000000000107000  ffe0000000000000
16-19  0000001dcdcb88a5  0000000000000000  000000001014d718  0000000005804200
20-23  0000000000000180  00000000faf00b2c  000000ff0804cf0f  c000000000000000
24-27  0000000000435000  000000007f680000  0000000000041020  5555555555555555
28-31  000000ffff95c810  5555555555555555  000000008f67c000  0000000010578000

Space Registers 0 - 7
00-03  00000180          00000180          00000000          00000180
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x000000001014d71c
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0010c03b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0xfffffffffed25000


Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  000000008f777ec0  0000000010507b00  0000000000000002  00000000104ab298
08-11  0000000010507b00  0000000000000802  00000000104cc768  000000008fab0000
12-15  0000000000000000  0000000000000000  000000001016db38  00000000103b1d10
16-19  00000000000009c8  000000008fa5e000  000000000800000f  00000000104ab2a0
20-23  000000008f777ec0  0000000010507b00  00000000003f45a2  000000000000ba2e
24-27  0000000400000000  000099997fab0b70  000000007fab0b78  000000000bebc200
28-31  0000000000000001  00000000ff915e20  000000001016880c  0000000010507b00


Check Summary                = 0xcb81000000000000
Available Memory             = 0x0000000100000000
CPU Diagnose Register 2      = 0x0301010800802004
CPU Status Register 0        = 0x2640c24000000000
CPU Status Register 1        = 0x8000200000000000
SADD LOG                     = 0xf8f0bd000040b800
Read Short LOG               = 0xc18200ff80000002



-----------------  DEW 1 HPMC Information -  ------ 

Timestamp =    Fri Feb  28 15:19:35 GMT 2003    (20:03:02:28:15:19:35)

Runway Control Log Reg            = 0x00927b0000000000
Runway Address Data Log Reg Odd   = 0xc0aa1010c4a61010
Runway Address Data Log Reg Even  = 0xc8a61010cca61010
Runway Address Log Reg            = 0x00000000000000f4
Runway Broad Error Log Reg        = 0x000000000000005c

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
                ERR_ERROR       X                X       

Merced Bus Requestor Address      = 0x0000000000000000
Merced Bus Target Address         = 0x0000000000000000
Merced Bus Responder Address      = 0x0000000000000000
Merced Error Status Reg           = 0x2002000000080000
Merced Error Overflow Reg         = 0x0000000000080000
Merced AERR Addr1 Log Reg         = 0x00006000ff86fdc0
Merced AERR Addr2 Log Reg         = 0x00008000078fff08
Merced DERR  Log Reg              = 0x0001000000000000
Merced Error Syndrome Reg         = 0x00000000000000c0


-------  Processor 1  LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



-------  Processor 1  TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000000000000
CPU State                    = 0x00000000



-------  Processor 3 HPMC Information - PDC Version: 41.28   ------ 

Timestamp =    Fri Feb  28 15:19:35 GMT 2003    (20:03:02:28:15:19:35)

HPMC Chassis Codes 

       Chassis Code        Extension 
       ------------        --------- 
       0x0000082000ff6242  0x0000000000000000
       0x1800082011036322  0xcb81800000000000
       0x0000082000ff6452  0x0000000000000000
       0x0000082000ff6402  0x0000000000000000
       

General Registers 0 - 31
00-03  0000000000000000  0000000010516b00  0000000010115eec  00000000103fd0f8
04-07  000000000800000f  0000000000000002  0000000000000000  0000000010507b00
08-11  00000000103fd0f8  00000000103fd0f8  00000000103903c0  000000001038eec0
12-15  0000000000000001  0000000000000001  000000008fabdec8  00000000000dec68
16-19  0000000000000000  0000000000000000  00000000faf005e0  0000000000000001
20-23  0000000000005c10  0000000010431078  0000000010507b00  0000000000000001
24-27  0000000000000116  00000000103903c0  00000000103fd130  0000000010507b00
28-31  0000000000000800  000000008f0e0fb0  000000008f0e0fc0  0000000000008ba3


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  000000000000001e  0000000000000000  00000000000000c0  000000000000002f
12-15  0000000000000000  0000000000000000  0000000000107000  ffe0000000000000
16-19  0000001dcda30375  0000000000000000  0000000010115ff8  000000000ea010d3
20-23  0000000000000000  0000000000000000  000000000804030f  0000000000000000
24-27  0000000000435000  000000007f064000  0000000000041020  5555555555555555
28-31  000000ffff95c810  5555555555555555  000000008f0e0000  0000000000008020

Space Registers 0 - 7
00-03  00000780          00000780          00000000          00000780
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000010115ffc
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030000d
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffed2d000
System Requestor Address     = 0x000000fffed2c000


Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  000000008f777ec0  0000000010507b00  0000000000000002  00000000104ab298
08-11  0000000010507b00  0000000000000802  00000000104cc768  000000008fab0000
12-15  0000000000000000  0000000000000000  000000001016db38  00000000103b1d10
16-19  00000000000009c8  000000008fa5e000  000000000800000f  00000000104ab2a0
20-23  000000008f777ec0  0000000010507b00  00000000003f45a2  000000000000ba2e
24-27  0000999900000000  000099997fab0b70  000000007fab0b78  000000000bebc200
28-31  0000000000000001  00000000ff915e20  000000001016880c  0000000010507b00


Check Summary                = 0xcb81800000000000
Available Memory             = 0x0000000100000000
CPU Diagnose Register 2      = 0x0301030800802004
CPU Status Register 0        = 0x3640c24000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x48e0000000000002
Read Short LOG               = 0xc18080ff80080014



-----------------  DEW 3 HPMC Information -  ------ 

Timestamp =    Fri Feb  28 15:19:35 GMT 2003    (20:03:02:28:15:19:35)

Runway Control Log Reg            = 0x0006720000000000
Runway Address Data Log Reg Odd   = 0xfffffffffffc3f00
Runway Address Data Log Reg Even  = 0xfffffffffffc3f00
Runway Address Log Reg            = 0x0000000000000048
Runway Broad Error Log Reg        = 0x00000000000000dc

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X             ERR_ERROR       X            X   X       

Merced Bus Requestor Address      = 0x0000000000000000
Merced Bus Target Address         = 0x0000000000000000
Merced Bus Responder Address      = 0x0000000000000000
Merced Error Status Reg           = 0x2001000000082004
Merced Error Overflow Reg         = 0x0000000000082000
Merced AERR Addr1 Log Reg         = 0x00c0000000300000
Merced AERR Addr2 Log Reg         = 0x0000000000f00000
Merced DERR  Log Reg              = 0x0001000000000000
Merced Error Syndrome Reg         = 0x0000000000260000


-------  Processor 3  LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



-------  Processor 3  TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000000000000
CPU State                    = 0x00000000


--------------  Memory Error Log Information  --------------

Bus 0 Log Information

Timestamp =    Fri Feb  28 15:19:35 GMT 2003    (20:03:02:28:15:19:35)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
                ERR_ERROR       X                X       

Bus Requestor Address      = 0x0000000000000000
Bus Target Address         = 0x0000000000000000
Bus Responder Address      = 0x0000000000000000

Error Status Reg           = 0x0000000000080000
Error Overflow Reg         = 0x0000000000080000
AERR Address 1 Log Reg     = 0x0000000000000000
AERR Address 2 Log Reg     = 0xf800000000000000
FERR  Log Reg              = 0x0000000000000000
DERR  Log Reg              = 0x000112000a96c580
Error Syndrome Reg         = 0x0000000000000000



 Address/Control Parity Error Registers  

   Address/Control Parity Error Bit (AE) Not Set 



Bus 1 Log Information

Timestamp =    Fri Feb  28 15:19:35 GMT 2003    (20:03:02:28:15:19:35)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_TIMEOUT   X               X           

Bus Requestor Address      = 0xfffffffffed2c000
Bus Target Address         = 0x00000000f000a000
Bus Responder Address      = 0x0000000000000000

Error Status Reg           = 0x0000000000000800
Error Overflow Reg         = 0x0000000000000800
AERR Address 1 Log Reg     = 0x08006000f000a000
AERR Address 2 Log Reg     = 0x6000b0002f700a10
FERR  Log Reg              = 0x0000000000000000
DERR  Log Reg              = 0x0000000000000000
Error Syndrome Reg         = 0x0000000000000000



 Address/Control Parity Error Registers  

   Address/Control Parity Error Bit (AE) Not Set 



------------  I/O Module Error Log Information  ------------

Summary of IO subsystem log entries
-----------------------------------
                        Phys Loc             Vendor  Device   Severity
Description             (hex)                 Id      Id      CORR UNC FE
 CW
-----------             -----                ------  ------   ----------------
System Bus Adapter SB  0x000000ffffffff82   0x103c  0x1050              X
System Bus Adapter RP  0x000000ffff0dff83   0x103c  0x1051              X
System Bus Adapter RP  0x000000ffff0eff83   0x103c  0x1051              X
System Bus Adapter RP  0x000101ffff06ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000101ffff02ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000101ffff01ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000101ffff04ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000101ffff05ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000101ffff03ff83   0x103c  0x1051              X
System Bus Adapter SB  0x000000ffffffff82   0x103c  0x1050              X
System Bus Adapter RP  0x000202ffff0cff83   0x103c  0x1051              X
System Bus Adapter RP  0x000202ffff0aff83   0x103c  0x1051              X
System Bus Adapter RP  0x000202ffff09ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000202ffff0bff83   0x103c  0x1051              X
System Bus Adapter RP  0x000202ffff08ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000202ffff07ff83   0x103c  0x1051              X


Detail display of IO subsystem log entries
------------------------------------------

System Bus Adapter -- System Bus Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:37 GMT 2003    (20:03:02:28:15:21:37)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X       X     ERR_ERROR       X                X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0xfffffffffed00000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000007ff0034

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:39 GMT 2003    (20:03:02:28:15:21:39)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff0dff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:39 GMT 2003    (20:03:02:28:15:21:39)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff0eff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:39 GMT 2003    (20:03:02:28:15:21:39)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000101ffff06ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:39 GMT 2003    (20:03:02:28:15:21:39)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000101ffff02ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:39 GMT 2003    (20:03:02:28:15:21:39)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000101ffff01ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:39 GMT 2003    (20:03:02:28:15:21:39)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000101ffff04ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:39 GMT 2003    (20:03:02:28:15:21:39)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000101ffff05ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:39 GMT 2003    (20:03:02:28:15:21:39)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000101ffff03ff83

System Bus Adapter -- System Bus Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:40 GMT 2003    (20:03:02:28:15:21:40)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X       X     ERR_ERROR       X                X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0xfffffffffed40000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff01

Module Error Register   = 0x0000000007ff0034

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:42 GMT 2003    (20:03:02:28:15:21:42)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff01

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000202ffff0cff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:42 GMT 2003    (20:03:02:28:15:21:42)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff01

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000202ffff0aff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:42 GMT 2003    (20:03:02:28:15:21:42)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff01

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000202ffff09ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:42 GMT 2003    (20:03:02:28:15:21:42)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff01

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000202ffff0bff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:42 GMT 2003    (20:03:02:28:15:21:42)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff01

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000202ffff08ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Fri Feb  28 15:21:42 GMT 2003    (20:03:02:28:15:21:42)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff01

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000202ffff07ff83


What and how should I submit to dump_analyser.sh (if relevant for a 64bits
kernel?)

Thanks in advance,
    Joel






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From - Thu Nov 08 21:26:55 2018
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Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
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> Sorry Dave I do not find this stuff.

The place to look is

linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h.

It is rather buried.  Carlos and I have had some rather lengthy
discussions on how to implement pthread locking in glibc given
the limitations in aligning data on the stack and also for data
allocated by malloc.  This might be relevant to the kernel
locking code.

>  #define rwlock_init(lp)	do { *(lp) = RW_LOCK_UNLOCKED; } while (0)

The above macro uses a compound literal.  This creates a unique object
in the scope in which the macro is used.  As this is a BLKmode object,
the alignment of the object is set to GCC's definition for BIGGEST_ALIGNMENT.
The overall alignment also won't be better than STACK_BOUNDARY.  It
is possible to use a "static" macro argument in which case space for the
object will be allocated in the .bss section rather than on the stack.
This also allows the alignment attribute to work.  If you do this, then
you have to worry about whether the code needs to be reentrant.

On the hppa64 port (3.3 & later), BIGGEST_ALIGNMENT, STACK_BOUNDARY
and PREFERRED_STACK_BOUNDARY are now all 128 bits.  Prior to 3.3,
PREFERRED_STACK_BOUNDARY is 1024 bits but this is wrong.  The runtime
documentation specifies 128 bits (16 bytes) for the stack alignment
on the 64-bit port.  Using a larger boundary just wastes space.
Stack alignment is also determined by what you start with.

Also note, any attempt to provide an overall alignment for the compound
literal on the stack is ignored.  However, as all 64-bit machines are
PA 2.0, this doesn't matter.  On the otherhand, the alignment does
matter for the 32-bit port on PA 1.1 machines.  There the ldcw insn
has to operate on 16-byte aligned data.  GCC from the master source
has BIGGEST_ALIGNMENT set to 64-bits on the 32-bit port.  So, the
above macro won't create a properly aligned lock.  Debian 3.0.4 has
BIGGEST_ALIGNMENT set to 128, so it should be used for PA 1.1 kernel
builds until this issue is resolved.

> Any better idea?

Not really.  I might use a name like SPIN_LOCK_UNLOCKED_INIT rather than
C_SPIN_LOCK_UNLOCKED, as I think it is slightly more descriptive.

Hope this helps,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> >I test it on gcc-3.2 64bits and I obtain a a kernel (I will try to boot
> it
> >latter).

I would like to strongly suggest 3.3 be used for this kind testing.
The 3.2 branch is more or less at its end.  There is a serious PR
relating to building a cross to hppa64-linux on hppa-linux which
hasn't been resolved.  3.3 has a huge number of changes (hopefully
improvements) for hppa64 and we are still doing bug fixes (no new
features).  3.3 isn't far from release, so the more testing the
better.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
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>> Sorry Dave I do not find this stuff.
>
>The place to look is
>
>linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h.
>
>It is rather buried.  Carlos and I have had some rather lengthy
>discussions on how to implement pthread locking in glibc given
>the limitations in aligning data on the stack and also for data
>allocated by malloc.  This might be relevant to the kernel
>locking code.
>
>>  #define rwlock_init(lp)	do { *(lp) = RW_LOCK_UNLOCKED; } while (0)
>
>The above macro uses a compound literal.  This creates a unique object
>in the scope in which the macro is used.  As this is a BLKmode object,
>the alignment of the object is set to GCC's definition for BIGGEST_ALIGNMENT.
>The overall alignment also won't be better than STACK_BOUNDARY.  It
>is possible to use a "static" macro argument in which case space for the
>object will be allocated in the .bss section rather than on the stack.
>This also allows the alignment attribute to work.  If you do this, then
>you have to worry about whether the code needs to be reentrant.
>
>On the hppa64 port (3.3 & later), BIGGEST_ALIGNMENT, STACK_BOUNDARY
>and PREFERRED_STACK_BOUNDARY are now all 128 bits.  Prior to 3.3,
>PREFERRED_STACK_BOUNDARY is 1024 bits but this is wrong.  The runtime
>documentation specifies 128 bits (16 bytes) for the stack alignment
>on the 64-bit port.  Using a larger boundary just wastes space.
>Stack alignment is also determined by what you start with.
>
>Also note, any attempt to provide an overall alignment for the compound
>literal on the stack is ignored.  However, as all 64-bit machines are
>PA 2.0, this doesn't matter.  On the otherhand, the alignment does
>matter for the 32-bit port on PA 1.1 machines.  There the ldcw insn
>has to operate on 16-byte aligned data.  GCC from the master source
>has BIGGEST_ALIGNMENT set to 64-bits on the 32-bit port.  So, the
>above macro won't create a properly aligned lock.  Debian 3.0.4 has
>BIGGEST_ALIGNMENT set to 128, so it should be used for PA 1.1 kernel
>builds until this issue is resolved.
>
Thanks for all info ;)

>> Any better idea?
>
>Not really.  I might use a name like SPIN_LOCK_UNLOCKED_INIT rather than
>C_SPIN_LOCK_UNLOCKED, as I think it is slightly more descriptive.
>
Ok for me (my C_ would stand for Constant form)

Joel


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: [parisc-linux] Re: Cross compiling for 64 bit on HPPA
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On Fri, Feb 28, 2003 at 02:55:06PM -0800, mike ganley wrote:
> hppa64 cross compiler.  Everything goes fine, then
> hppa64-linux-ld complains libc6 is version 2.2.5 and
> it requires 2.3 or greater.

libc6 2.3.x is only available from "unstable" debian pool.

Having just learned how to set up a "hybrid" release, I don't want
to reccomend this to anyone.  IMHO, this is for someone willing to
take risks with stability of a system, is not a developer, and wants
something that's only in "unstable".  Drawback with "hybrid" is package
maintainers will not like you if you report bugs - mixed releases are a
PITA to reproduce. Personally, I'm not going to report bugs
with the one box (my laptop) I have setup this way.

The following seems like the "least evil" way to go about it:

1) /etc/apt/apt.conf should have the line:
	APT::Default-Release "testing";

2) duplicate "testing" entries in /etc/apt/sources.list for
   "unstable" as well. run "apt-get update".

3) copy the following 7 lines into /etc/apt/preferences:
Package: *
Pin: release a=testing
Pin-Priority: 650

Package: *
Pin: release a=unstable
Pin-Priority: 90

  This allows one to install from unstable but not update such debs
  *until* they get promoted to "testing" release. Once this deb version
  is promoted to testing, it tracks versions like normal.

  Read "man apt_preferences" for more details.

4) "apt-get install libc6/unstable" to update to libc6 2.3.1 lib.
   You will have to install several other packages from /unstable
   at the same time. But apt-get will complain about which packages.

hth,
grant


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Subject: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
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In reference to a message from Matthias Klose, dated Mar 01:
> Matthias Klose writes:
> > AFAIK the transition from 3.2 to 3.3 requires recompilation of C++
> > code due to the changed exception handling (now DWARF2 based). As
> > libstdc++ in 3.2 and 3.2 have the same soname, how to handle it?
> > Currently 3.2 is in unstable only. Would you want to start the
> > recompilation before 3.2 based binaries go to testing?
> > 
> > The packaging for 3.3 can be found in the Debian CVS.
> 
> You can get test packages from
> 	http://ftp-master.debian.org/~doko/gcc-3.3/

well.... this is not looking good. after installing these in a freshly
built sarge chroot, all c++ programs stop working (well, i've only tried
two -- apt and fakeroot)

(btw, small packaging detail, but the libstdc++*-dev package above
cannot be installed cleanly because it overwrites things in the current
3.2 package)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
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> In reference to a message from Matthias Klose, dated Mar 01:
> > Matthias Klose writes:
> > > AFAIK the transition from 3.2 to 3.3 requires recompilation of C++
> > > code due to the changed exception handling (now DWARF2 based). As
> > > libstdc++ in 3.2 and 3.2 have the same soname, how to handle it?

Possibly, this issue should be broached with the libstdc++ maintainers.
In my testing, I have moved to installing each gcc version in its own
directory.

I should note again that 3.3 has a ABI change in the passing of small
structures.  It also contains a fix for function pointer comparison.
As glibc does function comparison in a number of routines, it needs
recompilation with 3.3 to work correctly.  Then, I believe gcc needs
to be rebuilt as libstdc++ depends on the thread implementation.  The
last glibc linuxthread code that I downloaded was still broken.  I know
Carlos has a patch in the works.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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On Sun, 2 Mar 2003, John David Anglin wrote:

> I should note again that 3.3 has a ABI change in the passing of small
> structures.  It also contains a fix for function pointer comparison.
> As glibc does function comparison in a number of routines, it needs
> recompilation with 3.3 to work correctly.  Then, I believe gcc needs
> to be rebuilt as libstdc++ depends on the thread implementation.  The
> last glibc linuxthread code that I downloaded was still broken.  I know
> Carlos has a patch in the works.

This means that future glibc (in Debian/PA-RISC, unstable) will/must
be compiled with gcc-3.3, along with all C++-programmes. Is this going to
happen soon or do you wait until gcc-3.3 is offically released?

Does this also imply that gcc/g++-3.3 will be the new default compiler
for unstable then? What (kind of) existing broken applications will be
fixed by recompiling with gcc-3.3?


Just curious, Max



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--7iMSBzlTiPOCCT2k
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debian-glibc,

With regards to GNU/Libc 2.3.x

The following is an update of LinuxThreads for HPPA, the changelog
is in progress and it has shown no regressions from a testing
standpoint. It actually does better in the gcc/g++ testsuite. This work
represents some long discussions between John David Anglin and myself,
please read the dpatch for more information about a specific patch.

Please remove the following .dpatch files from debian-glibc's CVS:

glibc23-02-hppa-min-kern-unwind-fde.dpatch
glibc23-03-hppa-mcontext.dpatch
glibc23-04-hppa-fcntl64.dpatch
glibc23-05-hppa-buildhack.dpatch
glibc23-06-hppa-tests.dpatch
glibc23-08-hppa-configure.dpatch

They are no longer being used and were superceeded by CVS patches.

Please replace glibc23-00-hppa-pthreads.dpatch with the attached version.
Please add glibc23-hppa-malloc-align.dpatch to the list of HPPA patches.

Quick Summary:
- LinuxThreads is now using a self-aligning lock.
- Malloc alignment has been moved back to 8 for optimal performance.

I did this work over 2-3 weeks ago, but due to current time constraints
it was behind "libgcc-compat hppa" on the queue, and thus didn't get
out. Randolph Chung recently fixed hppa's __clz_tab libgcc-compat issue,
which means I can take the 5 minutes I need to send this email :)

This code has been heavily tested by John and myself, though should any
HPPA users find problems, or have comments, please file bugs and/or 
contact me direclty or via any of the lists :)

Happy hacking.

Cheers,
Carlos.


--7iMSBzlTiPOCCT2k
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="glibc23-00-hppa-pthreads.dpatch"

#! /bin/sh -e

# DP: Description: HP/PARISC Linuxthreads impelementation "__ldcw_align()"
# DP: Author: Carlos O'Donell <carlos@baldric.uwo.ca>
# DP: Upstream status: Not submitted
# DP: Status Details: Writing changelogs. 
# DP: Date: March 1st, 2003

# This patch represents some of the work that John David Anglin and myself
# have done to try get Linuxthreads passing all the gcc/g++/glibc testsuites.
# The biggest issue we are trying to solve is that of the required 16-byte
# alignment for all locks. Since gcc cannot provide this type of alignment
# in all scenarios, John devised an interesting self-alinging solution.
# The implementation of that solution is presented here.
#	- Carlos.

if [ $# -ne 2 ]; then
    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
    exit 1
fi
case "$1" in
    -patch) patch -d "$2" -f --no-backup-if-mismatch -p1 < $0;;
    -unpatch) patch -d "$2" -f --no-backup-if-mismatch -R -p1 < $0;;
    *)
	echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
	exit 1
esac
exit 0

# append the patch here and adjust the -p? flag in the patch calls.
diff -urN glibc-2.3.1.orig/linuxthreads/descr.h glibc-2.3.1/linuxthreads/descr.h
--- glibc-2.3.1.orig/linuxthreads/descr.h	2003-01-15 12:58:11.000000000 -0500
+++ glibc-2.3.1/linuxthreads/descr.h	2003-01-15 18:24:36.000000000 -0500
@@ -70,7 +70,7 @@
 /* Atomic counter made possible by compare_and_swap */
 struct pthread_atomic {
   long p_count;
-  int p_spinlock;
+  __atomic_lock_t p_spinlock;
 };
 
 
diff -urN glibc-2.3.1.orig/linuxthreads/pt-machine.c glibc-2.3.1/linuxthreads/pt-machine.c
--- glibc-2.3.1.orig/linuxthreads/pt-machine.c	2002-08-26 18:39:45.000000000 -0400
+++ glibc-2.3.1/linuxthreads/pt-machine.c	2003-01-15 18:24:36.000000000 -0500
@@ -19,7 +19,9 @@
 
 #define PT_EI
 
-extern long int testandset (int *spinlock);
+#include <pthread.h>
+
+extern long int testandset (__atomic_lock_t *spinlock);
 extern int __compare_and_swap (long int *p, long int oldval, long int newval);
 
 #include <pt-machine.h>
diff -urN glibc-2.3.1.orig/linuxthreads/pthread.c glibc-2.3.1/linuxthreads/pthread.c
--- glibc-2.3.1.orig/linuxthreads/pthread.c	2003-01-15 12:58:15.000000000 -0500
+++ glibc-2.3.1/linuxthreads/pthread.c	2003-01-15 18:24:36.000000000 -0500
@@ -296,9 +296,9 @@
   pthread_descr self;
 
   /* First of all init __pthread_handles[0] and [1] if needed.  */
-# if __LT_SPINLOCK_INIT != 0
-  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
-  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
 # endif
 # ifndef SHARED
   /* Unlike in the dynamically linked case the dynamic linker has not
@@ -366,7 +366,7 @@
 # endif
   /* self->p_start_args need not be initialized, it's all zero.  */
   self->p_userstack = 1;
-# if __LT_SPINLOCK_INIT != 0
+# ifdef __LT_INITIALIZER_NOT_ZERO 
   self->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER;
 # endif
   self->p_alloca_cutoff = __MAX_ALLOCA_CUTOFF;
@@ -380,9 +380,9 @@
 #else  /* USE_TLS */
 
   /* First of all init __pthread_handles[0] and [1].  */
-# if __LT_SPINLOCK_INIT != 0
-  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
-  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
 # endif
   __pthread_handles[0].h_descr = &__pthread_initial_thread;
   __pthread_handles[1].h_descr = &__pthread_manager_thread;
diff -urN glibc-2.3.1.orig/linuxthreads/spinlock.c glibc-2.3.1/linuxthreads/spinlock.c
--- glibc-2.3.1.orig/linuxthreads/spinlock.c	2002-08-29 06:32:19.000000000 -0400
+++ glibc-2.3.1/linuxthreads/spinlock.c	2003-01-15 18:24:36.000000000 -0500
@@ -24,9 +24,9 @@
 #include "spinlock.h"
 #include "restart.h"
 
-static void __pthread_acquire(int * spinlock);
+static void __pthread_acquire(__atomic_lock_t * spinlock);
 
-static inline void __pthread_release(int * spinlock)
+static inline void __pthread_release(__atomic_lock_t * spinlock)
 {
   WRITE_MEMORY_BARRIER();
   *spinlock = __LT_SPINLOCK_INIT;
@@ -269,11 +269,11 @@
 struct wait_node {
   struct wait_node *next;	/* Next node in null terminated linked list */
   pthread_descr thr;		/* The thread waiting with this node */
-  int abandoned;		/* Atomic flag */
+  __atomic_lock_t abandoned;	/* Atomic flag */
 };
 
 static long wait_node_free_list;
-static int wait_node_free_list_spinlock;
+__pthread_lock_define_initialized(static, wait_node_free_list_spinlock);
 
 /* Allocate a new node from the head of the free list using an atomic
    operation, or else using malloc if that list is empty.  A fundamental
@@ -376,7 +376,7 @@
       if (self == NULL)
 	self = thread_self();
 
-      wait_node.abandoned = 0;
+      wait_node.abandoned = __LT_SPINLOCK_INIT;
       wait_node.next = (struct wait_node *) lock->__status;
       wait_node.thr = self;
       lock->__status = (long) &wait_node;
@@ -402,7 +402,7 @@
       wait_node.thr = self;
       newstatus = (long) &wait_node;
     }
-    wait_node.abandoned = 0;
+    wait_node.abandoned = __LT_SPINLOCK_INIT;
     wait_node.next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -451,7 +451,7 @@
       if (self == NULL)
 	self = thread_self();
 
-      p_wait_node->abandoned = 0;
+      p_wait_node->abandoned = __LT_SPINLOCK_INIT;
       p_wait_node->next = (struct wait_node *) lock->__status;
       p_wait_node->thr = self;
       lock->__status = (long) p_wait_node;
@@ -474,7 +474,7 @@
       p_wait_node->thr = self;
       newstatus = (long) p_wait_node;
     }
-    p_wait_node->abandoned = 0;
+    p_wait_node->abandoned = __LT_SPINLOCK_INIT;
     p_wait_node->next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -574,7 +574,7 @@
     while (p_node != (struct wait_node *) 1) {
       int prio;
 
-      if (p_node->abandoned) {
+      if (lock_held(&p_node->abandoned)) {
 	/* Remove abandoned node. */
 #if defined TEST_FOR_COMPARE_AND_SWAP
 	if (!__pthread_has_cas)
@@ -605,7 +605,7 @@
 	p_max_prio = p_node;
       }
 
-      /* This canno6 jump backward in the list, so no further read
+      /* This cannot jump backward in the list, so no further read
          barrier is needed. */
       pp_node = &p_node->next;
       p_node = *pp_node;
@@ -662,7 +662,7 @@
 #if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP
 
 int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                               int * spinlock)
+                               __atomic_lock_t * spinlock)
 {
   int res;
 
@@ -699,7 +699,7 @@
    - When nanosleep() returns, we try again, doing MAX_SPIN_COUNT
      sched_yield(), then sleeping again if needed. */
 
-static void __pthread_acquire(int * spinlock)
+static void __pthread_acquire(__atomic_lock_t * spinlock)	
 {
   int cnt = 0;
   struct timespec tm;
diff -urN glibc-2.3.1.orig/linuxthreads/spinlock.h glibc-2.3.1/linuxthreads/spinlock.h
--- glibc-2.3.1.orig/linuxthreads/spinlock.h	2001-05-24 19:36:35.000000000 -0400
+++ glibc-2.3.1/linuxthreads/spinlock.h	2003-01-15 18:24:36.000000000 -0500
@@ -33,14 +33,28 @@
 #endif
 #endif
 
+/* Define lock_held for all arches that don't need a modified copy. */
+#ifndef __LT_INITIALIZER_NOT_ZERO
+# define lock_held(p) *(p)
+#endif
+
+/* Initliazers for possibly complex structures */
+#ifdef __LT_INITIALIZER_NOT_ZERO
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME = __LT_SPINLOCK_ALT_INIT
+#else
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME
+#endif
+
 #if defined(TEST_FOR_COMPARE_AND_SWAP)
 
 extern int __pthread_has_cas;
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   if (__builtin_expect (__pthread_has_cas, 1))
     return __compare_and_swap(ptr, oldval, newval);
@@ -58,7 +72,7 @@
 
 static inline int
 compare_and_swap_with_release_semantics (long * ptr, long oldval,
-					 long newval, int * spinlock)
+					 long newval, __atomic_lock_t * spinlock)
 {
   return __compare_and_swap_with_release_semantics (ptr, oldval,
 						    newval);
@@ -67,7 +81,7 @@
 #endif
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __compare_and_swap(ptr, oldval, newval);
 }
@@ -75,10 +89,10 @@
 #else
 
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __pthread_compare_and_swap(ptr, oldval, newval, spinlock);
 }
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pspinlock.c glibc-2.3.1/linuxthreads/sysdeps/hppa/pspinlock.c
--- glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pspinlock.c	2002-08-26 18:39:51.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/hppa/pspinlock.c	2003-01-15 18:26:51.000000000 -0500
@@ -24,15 +24,12 @@
 int
 __pthread_spin_lock (pthread_spinlock_t *lock)
 {
-  unsigned int val;
+	unsigned int *addr = __ldcw_align (lock);
+	
+	while (__ldcw (addr) == 0)
+		while (*addr == 0) ;
 
-  do
-    asm volatile ("ldcw %1,%0"
-		  : "=r" (val), "=m" (*lock)
-		  : "m" (*lock));
-  while (!val);
-
-  return 0;
+	return 0;
 }
 weak_alias (__pthread_spin_lock, pthread_spin_lock)
 
@@ -40,13 +37,9 @@
 int
 __pthread_spin_trylock (pthread_spinlock_t *lock)
 {
-  unsigned int val;
-
-  asm volatile ("ldcw %1,%0"
-		: "=r" (val), "=m" (*lock)
-		: "m" (*lock));
+	unsigned int *a = __ldcw_align (lock);
 
-  return val ? 0 : EBUSY;
+	return __ldcw (a) ? 0 : EBUSY;
 }
 weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
 
@@ -54,7 +47,9 @@
 int
 __pthread_spin_unlock (pthread_spinlock_t *lock)
 {
-  *lock = 1;
+  unsigned int *a = __ldcw_align (lock);
+
+  *a = 1;
   return 0;
 }
 weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
@@ -66,7 +61,9 @@
   /* We can ignore the `pshared' parameter.  Since we are busy-waiting
      all processes which can access the memory location `lock' points
      to can use the spinlock.  */
-  *lock = 1;
+  unsigned int *a = __ldcw_align (lock);
+
+  *a = 1;
   return 0;
 }
 weak_alias (__pthread_spin_init, pthread_spin_init)
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pt-machine.h glibc-2.3.1/linuxthreads/sysdeps/hppa/pt-machine.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pt-machine.h	2002-08-26 18:39:51.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/hppa/pt-machine.h	2003-01-15 18:24:49.000000000 -0500
@@ -22,13 +22,13 @@
 #ifndef _PT_MACHINE_H
 #define _PT_MACHINE_H   1
 
+#include <sys/types.h>
 #include <bits/initspin.h>
 
 #ifndef PT_EI
 # define PT_EI extern inline
 #endif
 
-extern long int testandset (int *spinlock);
 extern int __compare_and_swap (long int *p, long int oldval, long int newval);
 
 /* Get some notion of the current stack.  Need not be exactly the top
@@ -36,27 +36,80 @@
 #define CURRENT_STACK_FRAME  stack_pointer
 register char * stack_pointer __asm__ ("%r30");
 
+/* Get/Set thread-specific pointer.  We have to call into the kernel to
+ * modify it, but we can read it in user mode.  */
+
+#define THREAD_SELF __get_cr27()
+
+static inline struct _pthread_descr_struct * __get_cr27(void)
+{
+	long cr27;
+	asm("mfctl %%cr27, %0" : "=r" (cr27) : );
+	return (struct _pthread_descr_struct *) cr27;
+}
+
+#define INIT_THREAD_SELF(descr, nr) __set_cr27(descr)
+
+static inline void __set_cr27(struct _pthread_descr_struct * cr27)
+{
+	asm(
+		"ble	0xe0(%%sr2, %%r0)\n\t"
+		"copy	%0, %%r26"
+	 : : "r" (cr27) : "r26" );
+}
+
+/* We want the OS to assign stack addresses.  */
+#define FLOATING_STACKS	1
+#define ARCH_STACK_MAX_SIZE	8*1024*1024
 
 /* The hppa only has one atomic read and modify memory operation,
    load and clear, so hppa spinlocks must use zero to signify that
-   someone is holding the lock.  */
+   someone is holding the lock.  The address used for the ldcw
+   semaphore must be 16-byte aligned.  */
+#define __ldcw(a) ({ \
+  unsigned int __ret;							\
+  __asm__ __volatile__("ldcw 0(%2),%0"					\
+                      : "=r" (__ret), "=m" (*(a)) : "r" (a));		\
+  __ret;								\
+})
+
+/* Because malloc only guarantees 8-byte alignment for malloc'd data,
+   and GCC only guarantees 8-byte alignment for stack locals, we can't
+   be assured of 16-byte alignment for atomic lock data even if we
+   specify "__attribute ((aligned(16)))" in the type declaration.  So,
+   we use a struct containing an array of four ints for the atomic lock
+   type and dynamically select the 16-byte aligned int from the array
+   for the semaphore.  */
+#define __PA_LDCW_ALIGNMENT 16
+#define __ldcw_align(a) ({ \
+  unsigned int __ret = (unsigned int) a;				\
+  if ((__ret & ~(__PA_LDCW_ALIGNMENT - 1)) < (unsigned int) a)		\
+    __ret = (__ret & ~(__PA_LDCW_ALIGNMENT - 1)) + __PA_LDCW_ALIGNMENT; \
+  (unsigned int *) __ret;						\
+})
 
-#define xstr(s) str(s)
-#define str(s) #s
 /* Spinlock implementation; required.  */
-PT_EI long int
-testandset (int *spinlock)
+PT_EI int
+__load_and_clear (__atomic_lock_t *spinlock)
 {
-  int ret;
+  unsigned int *a = __ldcw_align (spinlock);
 
-  __asm__ __volatile__(
-       "ldcw 0(%2),%0"
-       : "=r"(ret), "=m"(*spinlock)
-       : "r"(spinlock));
+  return __ldcw (a);
+}
 
-  return ret == 0;
+/* Emulate testandset */
+PT_EI long int
+testandset (__atomic_lock_t *spinlock)
+{
+  return (__load_and_clear(spinlock) == 0);
 }
-#undef str
-#undef xstr
 
+PT_EI int
+lock_held (__atomic_lock_t *spinlock)
+{
+  unsigned int *a = __ldcw_align (spinlock);
+
+  return *a == 0;
+}
+		
 #endif /* pt-machine.h */
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/libc-lock.h glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/libc-lock.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/libc-lock.h	2003-01-15 12:58:35.000000000 -0500
+++ glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/libc-lock.h	2003-01-15 18:24:36.000000000 -0500
@@ -71,12 +71,12 @@
    initialized locks must be set to one due to the lack of normal
    atomic operations.) */
 
-#if __LT_SPINLOCK_INIT == 0
+#ifdef __LT_INITIALIZER_NOT_ZERO
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME;
+  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
 #else
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
+  CLASS __libc_lock_t NAME;
 #endif
 
 #define __libc_rwlock_define_initialized(CLASS,NAME) \
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	2003-01-15 12:58:35.000000000 -0500
+++ glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	2003-01-15 18:24:36.000000000 -0500
@@ -22,12 +22,14 @@
 #define __need_schedparam
 #include <bits/sched.h>
 
+typedef int __atomic_lock_t;
+
 /* Fast locks (not abstract because mutexes and conditions aren't abstract). */
 struct _pthread_fastlock
 {
-  long int __status;   /* "Free" or "taken" or head of waiting list */
-  int __spinlock;      /* Used by compare_and_swap emulation. Also,
-			  adaptive SMP lock stores spin count here. */
+  long int __status;		/* "Free" or "taken" or head of waiting list */
+  __atomic_lock_t __spinlock;	/* Used by compare_and_swap emulation. Also,
+				   adaptive SMP lock stores spin count here. */
 };
 
 #ifndef _PTHREAD_DESCR_DEFINED
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h	2002-08-26 18:39:55.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h	2003-01-15 18:24:49.000000000 -0500
@@ -17,11 +17,23 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+/* Initialize global spinlocks without cast, generally macro wrapped */
+#define __LT_SPINLOCK_ALT_INIT { { 1, 1, 1, 1, } }
+
 /* Initial value of a spinlock.  PA-RISC only implements atomic load
    and clear so this must be non-zero. */
-#define __LT_SPINLOCK_INIT 1
+#define __LT_SPINLOCK_INIT ((__atomic_lock_t) __LT_SPINLOCK_ALT_INIT)
+
+/* Macros for lock initializers, not using the above definition.
+   The above definition is not used in the case that static initializers
+   use this value. */
+#define __LOCK_INITIALIZER { __LT_SPINLOCK_ALT_INIT, 0 }
+#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_ALT_INIT }
+
+/* Used to initialize _pthread_fastlock's in non-static case */
+#define __LOCK_ALT_INITIALIZER ((struct _pthread_fastlock){ __LT_SPINLOCK_INIT, 0 })
+
+/* Tell the rest of the code that the initializer is non-zero without
+   explaining it's internal structure */
+#define __LT_INITIALIZER_NOT_ZERO
 
-/* Macros for lock initializers, using the above definition. */
-#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
-#define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
-#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT }
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h	1969-12-31 19:00:00.000000000 -0500
+++ glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h	2003-01-15 18:24:49.000000000 -0500
@@ -0,0 +1,150 @@
+/* Linuxthreads - a simple clone()-based implementation of Posix        */
+/* threads for Linux.                                                   */
+/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr)              */
+/*                                                                      */
+/* This program is free software; you can redistribute it and/or        */
+/* modify it under the terms of the GNU Library General Public License  */
+/* as published by the Free Software Foundation; either version 2       */
+/* of the License, or (at your option) any later version.               */
+/*                                                                      */
+/* This program is distributed in the hope that it will be useful,      */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of       */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        */
+/* GNU Library General Public License for more details.                 */
+
+#if !defined _BITS_TYPES_H && !defined _PTHREAD_H
+# error "Never include <bits/pthreadtypes.h> directly; use <sys/types.h> instead."
+#endif
+
+#ifndef _BITS_PTHREADTYPES_H
+#define _BITS_PTHREADTYPES_H	1
+
+#define __need_schedparam
+#include <bits/sched.h>
+
+/* We need 128-bit alignment for the ldcw semaphore.  At most, we are
+   assured of 64-bit alignment for stack locals and malloc'd data.  Thus,
+   we use a struct with four ints for the atomic lock type.  The locking
+   code will figure out which of the four to use for the ldcw semaphore.  */
+typedef volatile struct {
+  int lock[4];
+} __attribute__ ((aligned(16))) __atomic_lock_t;
+
+/* Fast locks (not abstract because mutexes and conditions aren't abstract). */
+struct _pthread_fastlock
+{
+  __atomic_lock_t __spinlock;	/* Used by compare_and_swap emulation.  Also,
+				   adaptive SMP lock stores spin count here. */
+  long int __status;		/* "Free" or "taken" or head of waiting list */
+};
+
+#ifndef _PTHREAD_DESCR_DEFINED
+/* Thread descriptors */
+typedef struct _pthread_descr_struct *_pthread_descr;
+# define _PTHREAD_DESCR_DEFINED
+#endif
+
+
+/* Attributes for threads.  */
+typedef struct __pthread_attr_s
+{
+  int __detachstate;
+  int __schedpolicy;
+  struct __sched_param __schedparam;
+  int __inheritsched;
+  int __scope;
+  size_t __guardsize;
+  int __stackaddr_set;
+  void *__stackaddr;
+  size_t __stacksize;
+} pthread_attr_t;
+
+
+/* Conditions (not abstract because of PTHREAD_COND_INITIALIZER */
+typedef struct
+{
+  struct _pthread_fastlock __c_lock; /* Protect against concurrent access */
+  _pthread_descr __c_waiting;        /* Threads waiting on this condition */
+} pthread_cond_t;
+
+
+/* Attribute for conditionally variables.  */
+typedef struct
+{
+  int __dummy;
+} pthread_condattr_t;
+
+/* Keys for thread-specific data */
+typedef unsigned int pthread_key_t;
+
+
+/* Mutexes (not abstract because of PTHREAD_MUTEX_INITIALIZER).  */
+/* (The layout is unnatural to maintain binary compatibility
+    with earlier releases of LinuxThreads.) */
+typedef struct
+{
+  int __m_reserved;               /* Reserved for future use */
+  int __m_count;                  /* Depth of recursive locking */
+  _pthread_descr __m_owner;       /* Owner thread (if recursive or errcheck) */
+  int __m_kind;                   /* Mutex kind: fast, recursive or errcheck */
+  struct _pthread_fastlock __m_lock; /* Underlying fast lock */
+} pthread_mutex_t;
+
+
+/* Attribute for mutex.  */
+typedef struct
+{
+  int __mutexkind;
+} pthread_mutexattr_t;
+
+
+/* Once-only execution */
+typedef int pthread_once_t;
+
+
+#ifdef __USE_UNIX98
+/* Read-write locks.  */
+typedef struct _pthread_rwlock_t
+{
+  struct _pthread_fastlock __rw_lock; /* Lock to guarantee mutual exclusion */
+  int __rw_readers;                   /* Number of readers */
+  _pthread_descr __rw_writer;         /* Identity of writer, or NULL if none */
+  _pthread_descr __rw_read_waiting;   /* Threads waiting for reading */
+  _pthread_descr __rw_write_waiting;  /* Threads waiting for writing */
+  int __rw_kind;                      /* Reader/Writer preference selection */
+  int __rw_pshared;                   /* Shared between processes or not */
+} pthread_rwlock_t;
+
+
+/* Attribute for read-write locks.  */
+typedef struct
+{
+  int __lockkind;
+  int __pshared;
+} pthread_rwlockattr_t;
+#endif
+
+#ifdef __USE_XOPEN2K
+/* POSIX spinlock data type.  */
+typedef __atomic_lock_t pthread_spinlock_t;
+
+/* POSIX barrier. */
+typedef struct {
+  struct _pthread_fastlock __ba_lock; /* Lock to guarantee mutual exclusion */
+  int __ba_required;                  /* Threads needed for completion */
+  int __ba_present;                   /* Threads waiting */
+  _pthread_descr __ba_waiting;        /* Queue of waiting threads */
+} pthread_barrier_t;
+
+/* barrier attribute */
+typedef struct {
+  int __pshared;
+} pthread_barrierattr_t;
+
+#endif
+
+
+/* Thread identifiers */
+typedef unsigned long int pthread_t;
+
+#endif	/* bits/pthreadtypes.h */
diff -urN glibc-2.3.1.orig/sysdeps/hppa/dl-fptr.c glibc-2.3.1/sysdeps/hppa/dl-fptr.c
--- glibc-2.3.1.orig/sysdeps/hppa/dl-fptr.c	2002-01-31 20:31:51.000000000 -0500
+++ glibc-2.3.1/sysdeps/hppa/dl-fptr.c	2003-01-15 18:24:36.000000000 -0500
@@ -30,7 +30,7 @@
 # include <pt-machine.h>
 
 /* Remember, we use 0 to mean that a lock is taken on PA-RISC. */
-static int __hppa_fptr_lock = 1;
+static __atomic_lock_t __hppa_fptr_lock = __LT_SPINLOCK_ALT_INIT;
 #endif
 
 /* Because ld.so is now versioned, these functions can be in their own
@@ -127,7 +127,7 @@
 #ifdef _LIBC_REENTRANT
   /* Release the lock.  Again, remember, zero means the lock is taken!  */
   if (mem == NULL)
-    __hppa_fptr_lock = 1;
+    __hppa_fptr_lock = __LT_SPINLOCK_INIT;
 #endif
 
   /* Set bit 30 to indicate to $$dyncall that this is a PLABEL. */
@@ -180,7 +180,7 @@
 
 #ifdef _LIBC_REENTRANT
   /* Release the lock. */
-  __hppa_fptr_lock = 1;
+  __hppa_fptr_lock = __LT_SPINLOCK_INIT;
 #endif
 }
 
@@ -190,6 +190,8 @@
   Elf32_Addr addr = (Elf32_Addr) address;
   struct hppa_fptr *f;
 
+  address = (void *)((unsigned long)address &~ 3); /* Clear the bottom two bits.  See make_fptr. */
+  
 #ifdef _LIBC_REENTRANT
   /* Make sure we are alone.  */
   while (testandset (&__hppa_fptr_lock));
@@ -204,7 +206,7 @@
 
 #ifdef _LIBC_REENTRANT
   /* Release the lock.   */
-  __hppa_fptr_lock = 1;
+  __hppa_fptr_lock = __LT_SPINLOCK_INIT;
 #endif
 
   return addr;

--7iMSBzlTiPOCCT2k
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="glibc23-hppa-malloc8.dpatch"

#! /bin/sh -e

# DP: Description: Return Malloc to 8-byte alignments. 
# DP: Author: Carlos O'Donell <carlos@baldric.uwo.ca>
# DP: Upstream status: Not submitted
# DP: Status Details: Writing Changelog, will get submitted in the next week or so... 
# DP: Date: March 1st, 2003

# Since GCC can't assure 16-byte alignment in all situations we have moved
# to the much more robust self aligning setup where an alignment of 8-bytes
# is perfectly okay. This patch reverts our malloc alignments to 8-bytes and
# allows us to have a more optimal situation from the viewpoint of the malloc
# algorithm.
#
#	- Carlos.

if [ $# -ne 2 ]; then
    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
    exit 1
fi
case "$1" in
    -patch) patch -d "$2" -f --no-backup-if-mismatch -p1 < $0;;
    -unpatch) patch -d "$2" -f --no-backup-if-mismatch -R -p1 < $0;;
    *)
	echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
	exit 1
esac
exit 0

# append the patch here and adjust the -p? flag in the patch calls.
--- glibc-2.3.1/sysdeps/hppa/Makefile	2003-01-20 23:47:12.000000000 -0500
+++ glibc-2.3.1/sysdeps/hppa/Makefile	2003-01-20 23:47:19.000000000 -0500
@@ -22,10 +22,6 @@
 # CFLAGS-.os += -ffunction-sections
 LDFLAGS-c_pic.os += -Wl,--unique=.text*
 
-ifeq ($(subdir),malloc)
-CFLAGS-malloc.c += -DMALLOC_ALIGNMENT=16
-endif

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> This means that future glibc (in Debian/PA-RISC, unstable) will/must
> be compiled with gcc-3.3, along with all C++-programmes. Is this going to
> happen soon or do you wait until gcc-3.3 is offically released?

this is more or less up to the Debian release manager, but we are
probably not going to start gcc-3.3 transition until the gcc-3.2
transition is over.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> Does this also imply that gcc/g++-3.3 will be the new default compiler
> for unstable then? What (kind of) existing broken applications will be
> fixed by recompiling with gcc-3.3?

I can't be very specific as to what's fixed as most of the fixes have
come about from fixing failures in the GCC and binutils testsuites.

The passing of small structs by value mainly affects C++ code.  It's
rather uncommon to pass structs by value in C.  I'm not aware of any
impact on glibc or hpux libc, for example.

The comparison of function pointers in dynamic applications was
broken.  This was found in the binutils testsuite.  It potentially
affects signal handlers, running of initializers and finalizers, etc.
The PA has a rather unique way of handling function pointers.  A function
pointer points to a function descriptor when the plabel bit is set,
otherwise it points directly to the entry point of the function.
The dynamic loader does the initial setup of the function descriptors.
The first call to any function actually transfers to the routine
fixup in the dynamic loader.  It resolves the address of the function
to call.  Function pointer comparison also requires that the function
address be resolved.  In GCC 3.0.4, we just compared the function
descriptor pointers.  However, there can be multiple function decriptors
pointing to the same function.  So, this wasn't reliable.  When the
dynamic loader design was done a couple of years ago, this appears
to have been overlooked.  HP-UX 11 has what they call official procedure
descriptors which are unique.  Because it's not that common to pass
function pointers around from one dynamic object to another and compare
them with pointers from another object, the problem doesn't arise that
frequently.

The dwarf2 EH implementation was done mainly for compatibility with
other linux ports.  It's probably more efficient the using sjlj
exceptions.  Potentially, it's something that ada can use.  I believe
that ACT is using dwarf2 EH in their commercial ada distribution
under hpux.  It may also be useful for gdb.  However, I don't think
there is a difference in GCC testresults.

The pthread design in glibc also is potentially an ABI breaker.

These are the PA specific ABI issues that I recall, but there might
be more.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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At Sun, 2 Mar 2003 11:48:16 -0500,
Carlos O'Donell wrote:
> With regards to GNU/Libc 2.3.x
> 
> The following is an update of LinuxThreads for HPPA, the changelog
> is in progress and it has shown no regressions from a testing
> standpoint. It actually does better in the gcc/g++ testsuite. This work
> represents some long discussions between John David Anglin and myself,
> please read the dpatch for more information about a specific patch.
> 
> Please remove the following .dpatch files from debian-glibc's CVS:
> 
> glibc23-02-hppa-min-kern-unwind-fde.dpatch
> glibc23-03-hppa-mcontext.dpatch
> glibc23-04-hppa-fcntl64.dpatch
> glibc23-05-hppa-buildhack.dpatch
> glibc23-06-hppa-tests.dpatch
> glibc23-08-hppa-configure.dpatch
> 
> They are no longer being used and were superceeded by CVS patches.
> 
> Please replace glibc23-00-hppa-pthreads.dpatch with the attached version.
> Please add glibc23-hppa-malloc-align.dpatch to the list of HPPA patches.
> 
> Quick Summary:
> - LinuxThreads is now using a self-aligning lock.
> - Malloc alignment has been moved back to 8 for optimal performance.
> 
> I did this work over 2-3 weeks ago, but due to current time constraints
> it was behind "libgcc-compat hppa" on the queue, and thus didn't get
> out. Randolph Chung recently fixed hppa's __clz_tab libgcc-compat issue,
> which means I can take the 5 minutes I need to send this email :)
> 
> This code has been heavily tested by John and myself, though should any
> HPPA users find problems, or have comments, please file bugs and/or 
> contact me direclty or via any of the lists :)

Excellent :)

Thanks, but should it apply in 2.3.1-15?  I would like to delay to
apply it in 2.3.2-1.

Regards,
-- gotom




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> Excellent :)
> 
> Thanks, but should it apply in 2.3.1-15?  I would like to delay to
> apply it in 2.3.2-1.

It will work with -15, HPPA will FTBS under 2.3.2-1 because we haven't
written the sysdep-cancel support yet. The timeline for that looks like
atleast 2 weeks.

c.


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>-- Original Message --
>From: Randolph Chung <tausq@debian.org>
>To: Matthias Klose <doko@cs.tu-berlin.de>
>Cc: debian-hppa@lists.debian.org, debian-gcc@lists.debian.org,
>	parisc-linux@lists.parisc-linux.org
>Reply-To: Randolph Chung <tausq@debian.org>
>Subject: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
>Date: Sat, 1 Mar 2003 20:59:36 -0800
>
>
>In reference to a message from Matthias Klose, dated Mar 01:
>> Matthias Klose writes:
>> > AFAIK the transition from 3.2 to 3.3 requires recompilation of C++
>> > code due to the changed exception handling (now DWARF2 based). As
>> > libstdc++ in 3.2 and 3.2 have the same soname, how to handle it?
>> > Currently 3.2 is in unstable only. Would you want to start the
>> > recompilation before 3.2 based binaries go to testing?
>> > 
>> > The packaging for 3.3 can be found in the Debian CVS.

hmm is there an url explaining how to grab it?

>> 
>> You can get test packages from
>> 	http://ftp-master.debian.org/~doko/gcc-3.3/
>

Nice and is it also possible to produce a 64bits version of gcc?

>well.... this is not looking good. after installing these in a freshly
>built sarge chroot, all c++ programs stop working (well, i've only tried
>two -- apt and fakeroot)
>
>(btw, small packaging detail, but the libstdc++*-dev package above
>cannot be installed cleanly because it overwrites things in the current
>3.2 package)
>
>randolph
>-- 
>Randolph Chung
>Debian GNU/Linux Developer, hppa/ia64 ports
>http://www.tausq.org/
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

Thanks,
    Joel

---------------------------------
Vous surfez avec une ligne classique ?
Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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Is there a source for a recent netboot iso that includes the
hang-on-boot fixes for J282 class machines?

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216


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from http://pateam.esiee.fr/

PA/Linux stable kernel CVS version is 2.4.20-pa27
Latest Netinst ISO version is 2.4.20-pa27-20030223
PA/Linux devel kernel CVS version is 2.5.63-pa2

if 2.4.20-pa27 features that fix, it's on the ISO...


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


Le lundi, 3 mar 2003, =E0 16:46 Europe/Paris, Neulinger, Nathan a =E9crit =
:

> Is there a source for a recent netboot iso that includes the
> hang-on-boot fixes for J282 class machines?




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On Mon, Mar 03, 2003 at 04:57:47PM +0100, Thibaut VARENE wrote:
> from http://pateam.esiee.fr/
> 
> PA/Linux stable kernel CVS version is 2.4.20-pa27
> Latest Netinst ISO version is 2.4.20-pa27-20030223
> PA/Linux devel kernel CVS version is 2.5.63-pa2
> 
> if 2.4.20-pa27 features that fix, it's on the ISO...

it does.  see http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2003-February/032260.html

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> On Mon, 3 Mar 2003, Thibaut VARENE wrote:
> from http://pateam.esiee.fr/
>
> PA/Linux stable kernel CVS version is 2.4.20-pa27
> Latest Netinst ISO version is 2.4.20-pa27-20030223
> PA/Linux devel kernel CVS version is 2.5.63-pa2
>
> if 2.4.20-pa27 features that fix, it's on the ISO...

If this is the bus-walk hang, the -pa27 kernel fixes it on my C180.


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[Note: trimmed cc list]

> Last time I tried (couple of weeks ago), it was possible to build
> a 64-bit cross starting with 3.3.  This still doesn't work with 3.2.

also 64-bit hppa64-linux gcc-3.2 (built with 3.3) ICEs regularly. For
people using this to build kernels, I would suggest staying with 3.0.4
for now.

(I'm also seeing reproducible crashes when running hppa64-linux-ld now,
still need to track that down)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> Nice and is it also possible to produce a 64bits version of gcc?

Last time I tried (couple of weeks ago), it was possible to build
a 64-bit cross starting with 3.3.  This still doesn't work with 3.2.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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Great! Thanks! I will take a look.=20

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216


> -----Original Message-----
> From: Tom [mailto:palinux@alaskatech.org]=20
> Sent: Monday, March 03, 2003 10:14 AM
> To: Thibaut VARENE
> Cc: Neulinger, Nathan; parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] recent netboot iso?
>=20
>=20
> > On Mon, 3 Mar 2003, Thibaut VARENE wrote:
> > from http://pateam.esiee.fr/
> >
> > PA/Linux stable kernel CVS version is 2.4.20-pa27
> > Latest Netinst ISO version is 2.4.20-pa27-20030223
> > PA/Linux devel kernel CVS version is 2.5.63-pa2
> >
> > if 2.4.20-pa27 features that fix, it's on the ISO...
>=20
> If this is the bus-walk hang, the -pa27 kernel fixes it on my C180.
>=20


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Randolph Chung wrote:

>[Note: trimmed cc list]
>
>  
>
>>Last time I tried (couple of weeks ago), it was possible to build
>>a 64-bit cross starting with 3.3.  This still doesn't work with 3.2.
>>    
>>
>
>also 64-bit hppa64-linux gcc-3.2 (built with 3.3) ICEs regularly. For
>people using this to build kernels, I would suggest staying with 3.0.4
>for now.
>
>(I'm also seeing reproducible crashes when running hppa64-linux-ld now,
>still need to track that down)
>
>randolph
>  
>
Ok Randolph, I will wait so because the question was in fact to rebuild 
a kernel 64bits with smp support (up works fine) but smp seems to 
failled just after init the first cpu and would like to see what is the 
problem.

Thanks for advise,  
    Joel



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FYI. Install worked great, but unfortunately, current tools/etc. still
have the problem with loading the afs module (segfault in insmod) and I
don't have time to dig into it again. (I did an a-g upgrade with
unstable as well.)

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216


> -----Original Message-----
> From: Neulinger, Nathan=20
> Sent: Monday, March 03, 2003 10:47 AM
> To: Tom; Thibaut VARENE
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: RE: [parisc-linux] recent netboot iso?
>=20
>=20
> Great! Thanks! I will take a look.=20
>=20
> -- Nathan
>=20
> ------------------------------------------------------------
> Nathan Neulinger                       EMail:  nneul@umr.edu
> University of Missouri - Rolla         Phone: (573) 341-4841
> Computing Services                       Fax: (573) 341-4216
>=20
>=20
> > -----Original Message-----
> > From: Tom [mailto:palinux@alaskatech.org]=20
> > Sent: Monday, March 03, 2003 10:14 AM
> > To: Thibaut VARENE
> > Cc: Neulinger, Nathan; parisc-linux@lists.parisc-linux.org
> > Subject: Re: [parisc-linux] recent netboot iso?
> >=20
> >=20
> > > On Mon, 3 Mar 2003, Thibaut VARENE wrote:
> > > from http://pateam.esiee.fr/
> > >
> > > PA/Linux stable kernel CVS version is 2.4.20-pa27
> > > Latest Netinst ISO version is 2.4.20-pa27-20030223
> > > PA/Linux devel kernel CVS version is 2.5.63-pa2
> > >
> > > if 2.4.20-pa27 features that fix, it's on the ISO...
> >=20
> > If this is the bus-walk hang, the -pa27 kernel fixes it on my C180.
> >=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>=20


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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] I want to use gcc2.9x on Debian 3,0 woody for HP-PARISC
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> 1. can i use gcc 2.9.x on debian 3.0r1(woody)?
> 2. how do i install gcc 2.9.x on debian 3.0r1(woody) for PARISC?

there is no 2.9x compilers for hppa-linux

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Rod Smart <snaketails@optushome.com.au>
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Subject: [parisc-linux] Setting up Xfree86
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    I have installed the Debian release onto my HP C-180, installed
without any problems, but I need to setup XFree, I cannot find the usual
configuration programs, even if I try (from memory)

xfree86 --config   (or is it --new)

    Well the option for configuring xfree86.

    I cannot find anything for configuring it.

    Please point me in the correct location.

    I can ssh into and out of the box without a problem, and networking
is happily running.

    I have 768Megs of RAM on board so this I doubt will be an isue.



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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] Setting up Xfree86
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Xref: news.gmane.org gmane.linux.ports.parisc:17844

Rod,

A couple of simple questions:

Are you sure that the graphics card in the C180 is supported?

	you can verify this by running fbset -i as root on the box.

If you have a supported graphics card, then try the following command: 
	dpkg-reconfigure xserver-xfree86


The mailing list archives should have some info on this also.

Thanks,

- Ryan



On Wed, 2003-03-05 at 22:29, Rod Smart wrote:
>     I have installed the Debian release onto my HP C-180, installed
> without any problems, but I need to setup XFree, I cannot find the usual
> configuration programs, even if I try (from memory)
> 
> xfree86 --config   (or is it --new)
> 
>     Well the option for configuring xfree86.
> 
>     I cannot find anything for configuring it.
> 
>     Please point me in the correct location.
> 
>     I can ssh into and out of the box without a problem, and networking
> is happily running.
> 
>     I have 768Megs of RAM on board so this I doubt will be an isue.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
-- 
Ryan Bradetich <rbradetich@uswest.net>



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Subject: [parisc-linux] RFC: mmap patch
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Xref: news.gmane.org gmane.linux.ports.parisc:17845

Hi all,

Looking for some vm gurus to verify that this is correct. This fixes a
problem where the kernel-view of a page vs the user-view can get out of
sync because of the virtually tagged cache of PA. This fixes a bug
reported some time back where write(2)s to a mmaped fd doesn't get 
updated properly in the mmap'ed region.

Many thanks to willy for his advice in putting this together :)

This is tested on 2.5.64-pa1 on a500, but should also apply to 2.4.

Any comments before I apply?

randolph

Index: include/asm-parisc/cacheflush.h
===================================================================
RCS file: /var/cvs/linux-2.5/include/asm-parisc/cacheflush.h,v
retrieving revision 1.5
diff -u -p -r1.5 cacheflush.h
--- include/asm-parisc/cacheflush.h	6 Mar 2003 04:20:45 -0000	1.5
+++ include/asm-parisc/cacheflush.h	6 Mar 2003 06:35:41 -0000
@@ -67,13 +67,15 @@ flush_user_icache_range(unsigned long st
 #endif
 }
 
+extern void __flush_dcache_page(struct page *page);
+
 static inline void flush_dcache_page(struct page *page)
 {
 	if (page->mapping && list_empty(&page->mapping->i_mmap) &&
 			list_empty(&page->mapping->i_mmap_shared)) {
 		set_bit(PG_dcache_dirty, &page->flags);
 	} else {
-		flush_kernel_dcache_page(page_address(page));
+		__flush_dcache_page(page);
 	}
 }
 
Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/cache.c,v
retrieving revision 1.9
diff -u -p -r1.9 cache.c
--- arch/parisc/kernel/cache.c	5 Mar 2003 21:15:37 -0000	1.9
+++ arch/parisc/kernel/cache.c	6 Mar 2003 06:35:41 -0000
@@ -222,3 +222,42 @@ void disable_sr_hashing(void)
 
 	disable_sr_hashing_asm(srhash_type);
 }
+
+void __flush_dcache_page(struct page *page)
+{
+	struct mm_struct *mm = current->active_mm;
+	struct list_head *l;
+
+	flush_kernel_dcache_page(page_address(page));
+
+	if (!page->mapping)
+		return;
+
+	list_for_each(l, &page->mapping->i_mmap_shared) {
+		struct vm_area_struct *mpnt;
+		unsigned long off;
+
+		mpnt = list_entry(l, struct vm_area_struct, shared);
+
+		/*
+		 * If this VMA is not in our MM, we can ignore it.
+		 */
+		if (mpnt->vm_mm != mm)
+			continue;
+
+		if (page->index < mpnt->vm_pgoff)
+			continue;
+
+		off = page->index - mpnt->vm_pgoff;
+		if (off >= (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT)
+			continue;
+
+		flush_cache_page(mpnt, mpnt->vm_start + (off << PAGE_SHIFT));
+
+		/* All user shared mappings should be equivalently mapped,
+		 * so once we've flushed one we should be ok
+		 */
+		break;
+	}
+}
+
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>
> Looking for some vm gurus to verify that this is correct. This fixes a
> problem where the kernel-view of a page vs the user-view can get out of
> sync because of the virtually tagged cache of PA. This fixes a bug
> reported some time back where write(2)s to a mmaped fd doesn't get
> updated properly in the mmap'ed region.
>
> Many thanks to willy for his advice in putting this together :)
>
> This is tested on 2.5.64-pa1 on a500, but should also apply to 2.4.
>
> Any comments before I apply?
>

In my opinion this patch is a hack workaround for a real bug. parisc is
not the only architecture that has virtual tagged caches.  Some mips
machines, sparc and ultrasparc machines have virtual tagged caches,
although none of them have virtual tagged caches as large as parisc (the
other architectures typically have a larger physical cache at a higher
level in the cache hierarchy).

Dave Miller designed the cache flushing strategy to have hooks in the
machine independent code to support virtual tagged caches.  Probably there
is simply a cache flush that is missing that doesn't show itself as a bug
as easily on the smaller virtually tagged caches of the other
architectures. At most this particular scenario wasn't considered
for virtual tagged caches (maintaining coherence between fd writes and
mmap'ed regions) and will require a design change to fix.

The fix for this bug should be made in machine independent code, not in
our machine dependent code.

John Marvin
jsm@fc.hp.com

P.S. I am cc'ing Dave Miller to see if he cares to comment.

> Index: include/asm-parisc/cacheflush.h
> ===================================================================
> RCS file: /var/cvs/linux-2.5/include/asm-parisc/cacheflush.h,v
> retrieving revision 1.5
> diff -u -p -r1.5 cacheflush.h
> --- include/asm-parisc/cacheflush.h     6 Mar 2003 04:20:45 -0000       1.5
> +++ include/asm-parisc/cacheflush.h     6 Mar 2003 06:35:41 -0000
> @@ -67,13 +67,15 @@ flush_user_icache_range(unsigned long st
>  #endif
>  }
>
> +extern void __flush_dcache_page(struct page *page);
> +
>  static inline void flush_dcache_page(struct page *page)
>  {
>         if (page->mapping && list_empty(&page->mapping->i_mmap) &&
>                         list_empty(&page->mapping->i_mmap_shared)) {
>                 set_bit(PG_dcache_dirty, &page->flags);
>         } else {
> -               flush_kernel_dcache_page(page_address(page));
> +               __flush_dcache_page(page);
>         }
>  }
>
> Index: arch/parisc/kernel/cache.c
> ===================================================================
> RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/cache.c,v
> retrieving revision 1.9
> diff -u -p -r1.9 cache.c
> --- arch/parisc/kernel/cache.c  5 Mar 2003 21:15:37 -0000       1.9
> +++ arch/parisc/kernel/cache.c  6 Mar 2003 06:35:41 -0000
> @@ -222,3 +222,42 @@ void disable_sr_hashing(void)
>
>         disable_sr_hashing_asm(srhash_type);
>  }
> +
> +void __flush_dcache_page(struct page *page)
> +{
> +       struct mm_struct *mm = current->active_mm;
> +       struct list_head *l;
> +
> +       flush_kernel_dcache_page(page_address(page));
> +
> +       if (!page->mapping)
> +               return;
> +
> +       list_for_each(l, &page->mapping->i_mmap_shared) {
> +               struct vm_area_struct *mpnt;
> +               unsigned long off;
> +
> +               mpnt = list_entry(l, struct vm_area_struct, shared);
> +
> +               /*
> +                * If this VMA is not in our MM, we can ignore it.
> +                */
> +               if (mpnt->vm_mm != mm)
> +                       continue;
> +
> +               if (page->index < mpnt->vm_pgoff)
> +                       continue;
> +
> +               off = page->index - mpnt->vm_pgoff;
> +               if (off >= (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT)
> +                       continue;
> +
> +               flush_cache_page(mpnt, mpnt->vm_start + (off << PAGE_SHIFT));
> +
> +               /* All user shared mappings should be equivalently mapped,
> +                * so once we've flushed one we should be ok
> +                */
> +               break;
> +       }
> +}
> +
>


From - Thu Nov 08 21:26:58 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Re: RFC: mmap patch
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To: John Marvin <jsm@udlkern.fc.hp.com>
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On Thu, Mar 06, 2003 at 07:14:53AM -0700, John Marvin wrote:
> In my opinion this patch is a hack workaround for a real bug. parisc is
> not the only architecture that has virtual tagged caches.  Some mips
> machines, sparc and ultrasparc machines have virtual tagged caches,
> although none of them have virtual tagged caches as large as parisc (the
> other architectures typically have a larger physical cache at a higher
> level in the cache hierarchy).
> 
> Dave Miller designed the cache flushing strategy to have hooks in the
> machine independent code to support virtual tagged caches.  Probably there
> is simply a cache flush that is missing that doesn't show itself as a bug
> as easily on the smaller virtually tagged caches of the other
> architectures. At most this particular scenario wasn't considered
> for virtual tagged caches (maintaining coherence between fd writes and
> mmap'ed regions) and will require a design change to fix.
> 
> The fix for this bug should be made in machine independent code, not in
> our machine dependent code.

Unfortunately, the flush is in the right place according to the
definition.  Here's how it looks in 2.4 (2.5 is more complex but has
essentially the same flush in it):

generic_file_write(struct file *file,const char *buf,size_t count, loff_t *ppos)
{
[...]
                kaddr = kmap(page);
                status = mapping->a_ops->prepare_write(file, page, offset, offse
t+bytes);
                if (status)
                        goto sync_failure;
                page_fault = __copy_from_user(kaddr+offset, buf, bytes);
                flush_dcache_page(page);
                status = mapping->a_ops->commit_write(file, page, offset, offset
+bytes);

So our flush_dcache_page() flushes the kernel's view of that page,
no problem.  Memory now has the right contents.  But the dcache still
has the stale data in it for the user's mapping of the same page.

There's a few ways to fix it.

1) This patch tausq did.  Now we flush both user & kernel mappings for the
data.

2) Split flush_dcache_page into flush_dcache_page_user_mapping() and
flush_dcache_page_kernel_mapping().  Hopefully with better names.

3) (ab)use kmap to hand back an address which virtually aliases the user
mapping.  flush_dcache_page() would only have to writeback to memory if
the page was not mapped.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] Re: RFC: mmap patch
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In reference to a message from Matthew Wilcox, dated Mar 06:
> > In my opinion this patch is a hack workaround for a real bug. parisc is
> > not the only architecture that has virtual tagged caches.  Some mips
> > machines, sparc and ultrasparc machines have virtual tagged caches,
> > although none of them have virtual tagged caches as large as parisc (the
> > other architectures typically have a larger physical cache at a higher
[...]
> 1) This patch tausq did.  Now we flush both user & kernel mappings for the
> data.

I should mention that this is almost exactly what arm does as well.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [aj@azure.humbug.org.au: Warning: glibc 2.3.1 entering testing soon]
Date: Fri, 7 Mar 2003 18:17:40 +0000
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Since so many of our parisc-linux users are using debian, i thought this
was worth forwarding on.

----- Forwarded message from Anthony Towns <aj@azure.humbug.org.au> -----

Date: Sat, 8 Mar 2003 03:30:24 +1000
To: debian-devel-announce@lists.debian.org
Cc: debian-user@lists.debian.org, debian-sparc@lists.debian.org,
	debian-hppa@lists.debian.org
Subject: Warning: glibc 2.3.1 entering testing soon
From: Anthony Towns <aj@azure.humbug.org.au>

Sorry about the cross posting.

glibc 2.3.1-14 should be entering testing "tomorrow" (sometime around 30
hours from now, depending on your mirror). Along with it, some 800 other
source packages and all their binaries are expected to be updated. For
those of you running testing systems, please take care of the next few
days' upgrades, as a number of things *will* break.

php4 will be broken on all architectures. This will be fixed by the
removal of the Conflicts: line from the libc6 packages in a forthcoming
revision. It can be worked around by not upgrading until that version of
libc6 is available; by upgrading to php4 from unstable; or by manually
forcing the dependencies (and not using apt).

On sparc, the libc6-sparc64 package has been removed; this will mean
you'll be unable to install the versions of gcc-3.0, gcc-3.2, and a
number of related packages in testing. This can be worked around by not
using the versions of those packages from unstable, or by not upgrading
libc6 until new versions of the affected packages have entered testing.

On hppa, a number of programs that make use of the __clz_tab symbol will
fail to find it. That this symbol is visible was a bug in the toolchain,
that has been fixed; unfortunately the fix breaks old software, including,
eg, wget, lftp and other programs that link against libcrypto. You can
work around this problem by avoiding using the affected programs, by
rebuilding them from source, or by not upgrading libc6. Some compatability
code will be introduced in the next version of glibc so that this isn't
an issue.

Similar problems related to other symbols might appear on hppa or other
architectures. The problem is believed to have been fixed on i386, but
may not have been entirely addressed. Please report problems you find
in the usual manner.

There may be undiscovered interactions between the software that isn't
being updated yet, and the 800 packages that are being updated. Given that
so many packages are being updated in a single hit, and that a number
of core packages (gcc, perl, python, gnome, kde) will differ between
testing and unstable, this is significantly more likely than usual.

In short, please take care administering any testing systems you rely
on over the next few days.

If you wish to put libc6 on hold, you can do so at the command line by:

	# echo libc6 hold | dpkg --set-selections

or by using dselect or aptitude or similar.

Cheers,
aj

-- 
Anthony Towns <ajt@debian.org>
Debian Release Manager



----- End forwarded message -----

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Re: RFC: mmap patch
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On Thu, Mar 06, 2003 at 07:14:53AM -0700, John Marvin wrote:
> Dave Miller designed the cache flushing strategy to have hooks in the
> machine independent code to support virtual tagged caches.

While Dave Miller has my respect, he doesn't get everything exactly
right on the first try.  Design review and feedback are needed
(eg pci_set_dma_mask()) to fix remaining issues with the design
(e.g. nits/extensions to PCI DMA support).

My point is the VM design may have "flaws" WRT parisc architecture.
If the existing hooks mean performance sucks on parisc, davem is
usually open (though a PITA to convince) to discussing the issues.

I don't pretend to understand the issues with virtual tags and
linux VM design, I just want to encourage the discussion since
I'd really like to see SMP work right on parisc.

grant


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Subject: Re: [parisc-linux] Re: RFC: mmap patch
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   From: grundler@dsl2.external.hp.com (Grant Grundler)
   Date: Fri, 7 Mar 2003 23:30:43 -0700
   
   I don't pretend to understand the issues with virtual tags and
   linux VM design, I just want to encourage the discussion since
   I'd really like to see SMP work right on parisc.

If you flush caches exactly what sparc64 does in 2.5.x, and you do
have a virtually indexed, physically tagged cache, you should have no
correctness.  I've stressed that port to no end (in particular the LTP
suite has a great mmap/read/write coherency tester), and if there are
holes I'd like to know about them :-)

The sparc64 port only flushes when absolutely necessary.

The most crucial area to get efficient flushing is the
{copy,clear}_user_page implementation.  If you use temporary kernel
mappings mapped at virtual addresses matching the virtual color that
the user's mappings will have, this avoids virtually ALL of the
flushing for anonymous pages.  I haven't noticed too many ports pick
up this trick even though I mention it in cachetlb.txt.

On sparc64 I even save the original TLB entries before the flush
and restore them afterwards, so there is no TLB traffic as a result
of doing these temp mappings.


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On Fri, Mar 07, 2003 at 10:29:45PM -0800, David S. Miller wrote:
> If you flush caches exactly what sparc64 does in 2.5.x, and you do
> have a virtually indexed, physically tagged cache, you should have no
> correctness.

After getting some sleep and thinking about how IOMMUs work on parisc,
I've convinced myself the CPU caches are virtually tagged and
virtually indexed. Part of the IOMMU function is to provide the
virtual address tag/index bits in order to acquire cacheline ownership
on behalf of the device doing DMA. I don't know exactly how that
matters to the VM design, but it seems relevant that parisc is not
physically indexed.

thanks,
grant


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   From: grundler@dsl2.external.hp.com (Grant Grundler)
   Date: Sat, 8 Mar 2003 10:24:39 -0700
   
   After getting some sleep and thinking about how IOMMUs work on parisc,
   I've convinced myself the CPU caches are virtually tagged and
   virtually indexed.

Some quick googling suggests that they are physically tagged.

For example, see section 1.1 of the following paper:

	http://www.cs.washington.edu/homes/bershad/Papers/asplosVM.ps

It's an interesting paper btw too :-)


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Subject: Re: [parisc-linux] Re: RFC: mmap patch
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On Sat, Mar 08, 2003 at 11:04:59AM -0800, David S. Miller wrote:
> Some quick googling suggests that they are physically tagged.
> 
> For example, see section 1.1 of the following paper:
> 
> 	http://www.cs.washington.edu/homes/bershad/Papers/asplosVM.ps

yes, I'm just confused as usual.

> It's an interesting paper btw too :-)

ok - thanks.
It's not something I would have looked for normally.
I'll read it though to understand the problem better.

grant


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On Sat, Mar 08, 2003 at 11:04:59AM -0800, David S. Miller wrote:
>    From: grundler@dsl2.external.hp.com (Grant Grundler)
>    Date: Sat, 8 Mar 2003 10:24:39 -0700
>    
>    After getting some sleep and thinking about how IOMMUs work on parisc,
>    I've convinced myself the CPU caches are virtually tagged and
>    virtually indexed.
> 
> Some quick googling suggests that they are physically tagged.

I'm not sure of the exact definitions of physically/virtually tagged.
The definition you're interested in is on Page F-6 of the PARISC 2.0
Architecture book by Gerry Kane.  Fortunately HP have it online at the
rather ugly URL:

http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,959!218!244,00.html


	The instruction and data caches are required to detect that the
	same physical memory location is being accessed by two virtual
	addresses that satisfy all the following requirements:

	   1. The two virtual addresses map to the same absolute address.
	   2. Offset bits 40 through 63 are the same in both virtual addresses.

The upshot is that if two addresses are congruent modulo 4MB and they
map to the same physical address, the cache will detect it.  I've been
thinking about (ab)using kmap() for this for a while.  The trouble
is we'd need to have 1024 slots just to be guaranteed space to map 1
page -- if we need to guarantee to be able to map two pages at once,
we need 2048 slots (ie 8MB of virtual space).  Etc.  I have no idea how
many pages we expect to be able to map simultaneously, and haven't been
able to get a straight answer out of anyone so far.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, Mar 07, 2003 at 10:29:45PM -0800, David S. Miller wrote:
> If you flush caches exactly what sparc64 does in 2.5.x, and you do
> have a virtually indexed, physically tagged cache, you should have no
> correctness.  I've stressed that port to no end (in particular the LTP
> suite has a great mmap/read/write coherency tester), and if there are
> holes I'd like to know about them :-)

One other difference you forgot is that Sparc64 has writethrough caches
and PA has writeback caches.  This can make a difference.

> The most crucial area to get efficient flushing is the
> {copy,clear}_user_page implementation.  If you use temporary kernel
> mappings mapped at virtual addresses matching the virtual color that
> the user's mappings will have, this avoids virtually ALL of the
> flushing for anonymous pages.  I haven't noticed too many ports pick
> up this trick even though I mention it in cachetlb.txt.

I've certainly been thinking about doing it, but you're right we don't
do it yet.

> On sparc64 I even save the original TLB entries before the flush
> and restore them afterwards, so there is no TLB traffic as a result
> of doing these temp mappings.

Nice trick.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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   From: Matthew Wilcox <willy@debian.org>
   Date: Sat, 8 Mar 2003 22:45:03 +0000
   
   The upshot is that if two addresses are congruent modulo 4MB and they
   map to the same physical address, the cache will detect it.  I've been
   thinking about (ab)using kmap() for this for a while.  The trouble
   is we'd need to have 1024 slots just to be guaranteed space to map 1
   page -- if we need to guarantee to be able to map two pages at once,
   we need 2048 slots (ie 8MB of virtual space).  Etc.  I have no idea how
   many pages we expect to be able to map simultaneously, and haven't been
   able to get a straight answer out of anyone so far.

You need merely 8MB of address space (2 * 4MB) if you implement
my {copy,clear}_user_page() dynamic mapping hack, that will be
tons more cheaper than any kmap based scheme and also be nicer
on the TLB as there will be zero TLB changes occurring around
the copy/clear.

People can continue to talk about all their bright new idea, which
is fine, but it feels like my known-working ideas are being ignored.


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   From: Matthew Wilcox <willy@debian.org>
   Date: Sat, 8 Mar 2003 23:11:25 +0000

   One other difference you forgot is that Sparc64 has writethrough caches
   and PA has writeback caches.  This can make a difference.
   
It certainly could, but I think sparc64's schemes will work.
Please document any differences you discover, preferably with
text to go into Documentation/cachetlb.txt

The big variable is whether the cache lines are tagged with
physical addresses or not, that _does_ make a known difference.

But, it appears that so far all information suggests that
PA Risc uses physical tags.


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On Sat, Mar 08, 2003 at 03:00:23PM -0800, David S. Miller wrote:
> You need merely 8MB of address space (2 * 4MB) if you implement
> my {copy,clear}_user_page() dynamic mapping hack, that will be
> tons more cheaper than any kmap based scheme and also be nicer
> on the TLB as there will be zero TLB changes occurring around
> the copy/clear.
> 
> People can continue to talk about all their bright new idea, which
> is fine, but it feels like my known-working ideas are being ignored.

Sorry, I think you've misunderstood the problem.  This is write() vs mmap().
We call flush_dcache_page() after the write() -- but PA's flush_dcache_page() only flushes the kernel's mapping of that page, not the user's.  The question is how to fix that.

Randolph published a patch which flushes two pages -- one which is the
kernel's view of the page, and one which is the user's view of the page.
John disagreed that was necessary, and I'm proposing a way (with kmap)
to avoid it.

Nothing to do with copy/clear_user_page().

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> You need merely 9MB of address space (2 * 4MB) if you implement
> my {copy,clear}_user_page() dynamic mapping hack, that will be
> tons more cheaper than any kmap based scheme and also be nicer
> on the TLB as there will be zero TLB changes occurring around
> the copy/clear.

i hope i'm not missing something obvious, but from what i understand
from this discussion, {copy,user}_user_page helps with the initial
syncing up of new mappings that are created for a process... but how
does this deal with syncing up changes afterwards? for that we still
need the flush_dcache_page to walk the user mappings right?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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	Sorry, I think you've misunderstood the problem.  This is
	write() vs mmap().  We call flush_dcache_page() after the
	write() -- but PA's flush_dcache_page() only flushes the
	kernel's mapping of that page, not the user's.  The question
	is how to fix that.

Right, flush_dcache_page() must get rid of all instances of
the underlying physical data from the cache.  This means all
kernel and user virtual mappings of the page.

Chips with a "flush physical page X" scheme can just do that,
others can flush the kernel virtual mapping then walk the
VMA list of user mappings and hit those one by one.



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   From: Randolph Chung <tausq@debian.org>
   Date: Sat, 8 Mar 2003 15:31:41 -0800

   > You need merely 9MB of address space (2 * 4MB) if you implement
   > my {copy,clear}_user_page() dynamic mapping hack, that will be
   > tons more cheaper than any kmap based scheme and also be nicer
   > on the TLB as there will be zero TLB changes occurring around
   > the copy/clear.
   
   i hope i'm not missing something obvious, but from what i understand
   from this discussion, {copy,user}_user_page helps with the initial
   syncing up of new mappings that are created for a process... but how
   does this deal with syncing up changes afterwards? for that we still
   need the flush_dcache_page to walk the user mappings right?
   
Yes, the {copy,clear}_user_page() thing is an optimization for
handling of cache alias issues wrt. anonymous pages.

The PA-RISC mmap/write bug is something entirely different,
flush_dcache_page() just isn't doing what it is defined to
do :-)


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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On Sat, Mar 08, 2003 at 03:00:23PM -0800, David S. Miller wrote:
...
> People can continue to talk about all their bright new idea, which
> is fine, but it feels like my known-working ideas are being ignored.

As noted earlier, different problem.

Since about Nov 2002 we have been working on better {copy,clear}_user_page()
implementations quietly inside HP.  Unfortunately some, uhm, "issues" are
taking a long time to resolve before the routines can be published.
Once those issues are resolved, I think your trick with temporary
TLB entries can get implemented.

thanks,
grant


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Subject: [parisc-linux] Re: RFC: mmap patch
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>
> Yes, the {copy,clear}_user_page() thing is an optimization for
> handling of cache alias issues wrt. anonymous pages.
>
I already implemented that solution on the parisc port. Well actually
only half :-). I implemented both the copy and clear user page optimizations,
but later on disabled the copy_user_page solution. I can't remember the
exact details of the problem. Based on a comment I wrote, it seems that in
some cases copy_user_page was being used for something that was going to
be executed. I can't remember the exact scenario, since copy_user_page
is only called in copy-on-write situations.

The problem is that since we have split I and D caches, the cache would
need to be flushed anyway so that the instructions could be seen for
execution.  So it didn't make any sense to set up the temporary
translation and then flush it anyway; better to just do it through the
kernel translation and flush.  I believe this isn't a problem on sparc64
because of the write-through cache.

> The PA-RISC mmap/write bug is something entirely different,
> flush_dcache_page() just isn't doing what it is defined to
> do :-)

Ok.  But looking at the sparc64 implementation of flush_dcache_page I
don't see any code to traverse user vma's.  Is there some other
architecture specific trick that is being used to flush any user mappings
that are mapped to the same physical address as the kernel address?

John Marvin
jsm@fc.hp.com


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On Sat, Mar 08, 2003 at 03:00:23PM -0800, David S. Miller wrote:
> ...
> Since about Nov 2002 we have been working on better {copy,clear}_user_page()
> implementations quietly inside HP.  Unfortunately some, uhm, "issues" are
> taking a long time to resolve before the routines can be published.
> Once those issues are resolved, I think your trick with temporary
> TLB entries can get implemented.
>
The tlb trick for clear_user_page is already implemented. The code for
copy_user_page is there, but turned off due to an issue mentioned in my
last email. I believe the failure case was not a frequent path, and there
are ways of working around that problem.

The address that the copying is done through (e,g. the tlb trick) is
independent of the algorithm used to actually do the copying.

John


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On Sat, Mar 08, 2003 at 03:02:14PM -0800, David S. Miller wrote:
>    One other difference you forgot is that Sparc64 has writethrough caches
>    and PA has writeback caches.  This can make a difference.
>    
> It certainly could, but I think sparc64's schemes will work.
> Please document any differences you discover, preferably with
> text to go into Documentation/cachetlb.txt

Well.. one patch which affected us, but wouldn't affect a writethrough
cache is:

http://ftp.linux.org.uk/pub/linux/willy/patches/applied/shmem.diff

In that situation, the user has no view of that page currently so they
will read from memory.  With a writethrough cache it works without the
flush_dcache_page(), with writeback it does not.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi,

Sorry for posting this to the P-L mailing list, but there is no link
on the homepage who to contact directly.

Can somebody please change/correct the following entries in the
P-L HWDB:

- delete the reference of me (Max Grabert) as an owner of an "F10" (trashed)
- change the email address of my entries in "730" and "C240+" to
  deadbeef @gmx. net

Thanks alot in advance,
   Max



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From: Thibaut VARENE <varenet@esiee.fr>
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Le dimanche, 9 mar 2003, =E0 15:45 Europe/Paris, M. Grabert a =E9crit :

> Hi,
>
> Sorry for posting this to the P-L mailing list, but there is no link
> on the homepage who to contact directly.
Yes there is: hwdb@parisc-linux.org (see hwdb.parisc-linux.org), which=20=

unfortunately
points to me.
>
> Can somebody please change/correct the following entries in the
> P-L HWDB:
>
> - delete the reference of me (Max Grabert) as an owner of an "F10"=20
> (trashed)
> - change the email address of my entries in "730" and "C240+" to
>   deadbeef @gmx. net
I'd like to state publicly here that such changes are really painful to=20=

commit,
so unless it's something really important, I would greatly enjoy to be=20=

spared
any requests concerning the hwdb (or at least until I decide to rewrite=20=

it completely) :}
FWIW, don't worry if there's delay in the execution of these requests :P
>
> Thanks alot in advance,
You're welcome.
>    Max


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=




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Randolph Chung writes:
> In reference to a message from Matthias Klose, dated Mar 01:
> > Matthias Klose writes:
> > > AFAIK the transition from 3.2 to 3.3 requires recompilation of C++
> > > code due to the changed exception handling (now DWARF2 based). As
> > > libstdc++ in 3.2 and 3.2 have the same soname, how to handle it?
> > > Currently 3.2 is in unstable only. Would you want to start the
> > > recompilation before 3.2 based binaries go to testing?
> > > 
> > > The packaging for 3.3 can be found in the Debian CVS.
> > 
> > You can get test packages from
> > 	http://ftp-master.debian.org/~doko/gcc-3.3/
> 
> well.... this is not looking good. after installing these in a freshly
> built sarge chroot, all c++ programs stop working (well, i've only tried
> two -- apt and fakeroot)

You can find updated packages at
	http://ftp-master.debian.org/~doko/gcc-3.3/hppa/
checked building bash (fakeroot) and upgrading an unstable chroot (apt).

> (btw, small packaging detail, but the libstdc++*-dev package above
> cannot be installed cleanly because it overwrites things in the current
> 3.2 package)

There is still one conflict for libstdc++5-dev (<= 1:3.2.3-0pre3), so
please install libstdc++5-dev (1:3.2.3-0pre4) first.

	Matthias


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> Randolph Chung writes:
> > In reference to a message from Matthias Klose, dated Mar 01:
> > > Matthias Klose writes:
> > > > AFAIK the transition from 3.2 to 3.3 requires recompilation of C++
> > > > code due to the changed exception handling (now DWARF2 based). As
> > > > libstdc++ in 3.2 and 3.2 have the same soname, how to handle it?
> > > > Currently 3.2 is in unstable only. Would you want to start the
> > > > recompilation before 3.2 based binaries go to testing?
> > > > 
> > > > The packaging for 3.3 can be found in the Debian CVS.
> > > 
> > > You can get test packages from
> > > 	http://ftp-master.debian.org/~doko/gcc-3.3/
> > 
> > well.... this is not looking good. after installing these in a freshly
> > built sarge chroot, all c++ programs stop working (well, i've only tried
> > two -- apt and fakeroot)
> 
> You can find updated packages at
> 	http://ftp-master.debian.org/~doko/gcc-3.3/hppa/
> checked building bash (fakeroot) and upgrading an unstable chroot (apt).
> 
> > (btw, small packaging detail, but the libstdc++*-dev package above
> > cannot be installed cleanly because it overwrites things in the current
> > 3.2 package)
> 
> There is still one conflict for libstdc++5-dev (<= 1:3.2.3-0pre3), so
> please install libstdc++5-dev (1:3.2.3-0pre4) first.

Did you configure 3.3 using "--enable-sjlj-exceptions=yes"?  That way
the 3.3 C++ library should be compatible with the previous 3.3 library.
The switch to dwarf2 can be delayed until the next debian release.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)


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> Did you configure 3.3 using "--enable-sjlj-exceptions=yes"?  That way
> the 3.3 C++ library should be compatible with the previous 3.3 library.
> The switch to dwarf2 can be delayed until the next debian release.

yeah, i exchanged some mail with Matthias about this.

Anyway, I have the debs installed in a chroot now. Will start building
random stuff and see what happens :)

stay tuned,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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   From: John Marvin <jsm@udlkern.fc.hp.com>
   Date: Sat, 8 Mar 2003 20:42:04 -0700 (MST)

   The problem is that since we have split I and D caches, the cache would
   need to be flushed anyway so that the instructions could be seen for
   execution.  So it didn't make any sense to set up the temporary
   translation and then flush it anyway; better to just do it through the
   kernel translation and flush.  I believe this isn't a problem on sparc64
   because of the write-through cache.
   
Handled on sparc64, when TIF_BLKCOMMIT flag is set, we use a more
expensive block store instruction in {copy,clear}_user_page() which
while more expensive does keep the instruction cache up to date.

More modent sparc64 chips don't even need this as the store stream
of the cpu is fully snooped by the instruction cache.

   > The PA-RISC mmap/write bug is something entirely different,
   > flush_dcache_page() just isn't doing what it is defined to
   > do :-)
   
   Ok.  But looking at the sparc64 implementation of flush_dcache_page I
   don't see any code to traverse user vma's.  Is there some other
   architecture specific trick that is being used to flush any user mappings
   that are mapped to the same physical address as the kernel address?
   
On sparc64 we can remove an arbitrary "physical" page from the D-cache
in one pass.  It does not matter what virtual address they use.

So it is handled, you just don't understand the hardware :-)

Because the chip has this interface, we need not walk the VMA list.


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   From: John Marvin <jsm@udlkern.fc.hp.com>
   Date: Sat, 8 Mar 2003 20:51:55 -0700 (MST)

   The tlb trick for clear_user_page is already implemented. The code for
   copy_user_page is there, but turned off due to an issue mentioned in my
   last email. I believe the failure case was not a frequent path, and there
   are ways of working around that problem.
   
Fix it by adding a thread flag, "TIF_NEED_ICACHE_FLUSH" or whatever,
and at the end of copy_user_page() if this bit is set you flush the
page from the destination instruction cache.

The flag is set in do_parisc_fault() if the fault is for a write
and:

	((vma->vm_flags & VM_EXEC) != 0 &&
	 vma->vm_file != NULL)

See the TIF_BLKCOMMIT logic in arch/sparc64/mm/fault.c



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   From: Matthew Wilcox <willy@debian.org>
   Date: Sun, 9 Mar 2003 14:42:25 +0000
   
   Well.. one patch which affected us, but wouldn't affect a writethrough
   cache is:
   
   http://ftp.linux.org.uk/pub/linux/willy/patches/applied/shmem.diff
   
   In that situation, the user has no view of that page currently so they
   will read from memory.  With a writethrough cache it works without the
   flush_dcache_page(), with writeback it does not.
   
I think the real issue is SHMLBA isn't being honored, right?

The whole purpose of SHMLBA is to ensure a particular alignment
for shared memory anonymous regions, if that isn't happening anymore
that is a bug.

This is why SHMLBA is set to the virtual cache size on sparc32 for
certain cpus and on sparc64 for all cpus.



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On Sun, Mar 09, 2003 at 01:38:30PM -0800, David S. Miller wrote:
> I think the real issue is SHMLBA isn't being honored, right?

I don't think so.. according to cachetlb.txt:

If your D-cache has this problem, first define asm/shmparam.h SHMLBA
properly, it should essentially be the size of your virtually
addressed D-cache (or if the size is variable, the largest possible
size).  This setting will force the SYSv IPC layer to only allow user
processes to mmap shared memory at address which are a multiple of
this value.

That isn't where the problem lies.  This missing flush is in
shmem_getpage(), round about line 906 in 2.5.64.  Really, this should
be doing a clear_user_page() -- but not all callers of this routine have
a user address to pass on.

> The whole purpose of SHMLBA is to ensure a particular alignment
> for shared memory anonymous regions, if that isn't happening anymore
> that is a bug.

I thought this was to deal with user-user coherency problems, not
user-kernel?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: [parisc-linux] trouble loading from netinst ISO on B2000
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Basically my B2000 with the A4977A PCI EG graphics card starts up and allows me to load all the way until making the system bootable.  Then I get an error saying PALO won't load and then dumps me all the way back to the "choose a language" screen.  It's so weird because the card and the disks hanging off of the card are out of my C360 and functioned great with it.  I think I will blow away the the LUN in the array that I'm using, format it and try again starting with the disk partitioning.  It does seem to want to use the EG graphics card though.  As a side note, I think it's cool that the front LCD screen tells me I'm running Linux and the current kernel revision.  Any ideas?
derek
 "Copeland, Daniel" <Daniel.Copeland@alcoa.com> wrote:Thanks. The latest netinst iso worked...

-----Original Message-----
From: Thibaut VARENE [mailto:varenet@esiee.fr]
Sent: Thursday, February 27, 2003 6:51 PM
To: Copeland, Daniel
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: question about pa-risc linux on hp b2600 workstation


On Thu, 27 Feb 2003 10:40:42 -0500
"Copeland, Daniel" wrote:

> Hello,
> 
> Did you have to get special usb drivers to be able to install? I
downloaded
> the debian v. 3.0 iso and it boots fine, I just can't acknowledge w/ my
> keyboard...

perhaps you should read the section related to b2600 on this page:
http://pateam.esiee.fr/list.html

the mailing-list archive:
http://www.fr.parisc-linux.org/mailing-lists/

eventually the FAQ (there's an entry about USB keyboards)
http://www.fr.parisc-linux.org/faq/

and the Boot HOWTO
http://pateam.esiee.fr/doc.html

everything is explained there.

you need one of the latest netinst isos to install your box:
http://pateam.esiee.fr/download.html

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

(mail CC'd to the m-l to feed the archive)
_______________________________________________
parisc-linux mailing list
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http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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<P>Basically my B2000 with the A4977A PCI EG graphics card starts up and allows me to load all the way until making the system bootable.&nbsp; Then I get an error saying PALO won't load and then dumps me all the way back to the "choose a language" screen.&nbsp; It's so weird because the card and the disks hanging off of the card are out of my C360 and functioned great with it.&nbsp; I think I will blow away the the LUN in the array that I'm using, format it and try again starting with the disk partitioning.&nbsp; It does seem to want to use the EG graphics card though.&nbsp; As a side note, I think it's cool that the front LCD screen tells me I'm running Linux and the current kernel revision.&nbsp; Any ideas?
<P>derek
<P>&nbsp;<B><I>"Copeland, Daniel" &lt;Daniel.Copeland@alcoa.com&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">Thanks. The latest netinst iso worked...<BR><BR>-----Original Message-----<BR>From: Thibaut VARENE [mailto:varenet@esiee.fr]<BR>Sent: Thursday, February 27, 2003 6:51 PM<BR>To: Copeland, Daniel<BR>Cc: parisc-linux@lists.parisc-linux.org<BR>Subject: Re: question about pa-risc linux on hp b2600 workstation<BR><BR><BR>On Thu, 27 Feb 2003 10:40:42 -0500<BR>"Copeland, Daniel" <DANIEL.COPELAND@ALCOA.COM>wrote:<BR><BR>&gt; Hello,<BR>&gt; <BR>&gt; Did you have to get special usb drivers to be able to install? I<BR>downloaded<BR>&gt; the debian v. 3.0 iso and it boots fine, I just can't acknowledge w/ my<BR>&gt; keyboard...<BR><BR>perhaps you should read the section related to b2600 on this page:<BR>http://patea
 m.esiee.fr/list.html<BR><BR>the mailing-list archive:<BR>http://www.fr.parisc-linux.org/mailing-lists/<BR><BR>eventually the FAQ (there's an entry about USB keyboards)<BR>http://www.fr.parisc-linux.org/faq/<BR><BR>and the Boot HOWTO<BR>http://pateam.esiee.fr/doc.html<BR><BR>everything is explained there.<BR><BR>you need one of the latest netinst isos to install your box:<BR>http://pateam.esiee.fr/download.html<BR><BR>HTH,<BR><BR><BR>Thibaut VARENE<BR>The PA/Linux ESIEE Team<BR>http://pateam.esiee.fr/<BR><BR>(mail CC'd to the m-l to feed the archive)<BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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   From: Matthew Wilcox <willy@debian.org>
   Date: Mon, 10 Mar 2003 01:50:05 +0000
   
   Really, this should be doing a clear_user_page() -- but not all
   callers of this routine have a user address to pass on.

That sounds like the best fix to me.

The user address really is a "hint" to the routine, it need not be
precise.  Feel free to make this explicit in cachetlb.txt



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Well all efforts have failed.  I now tried to use an internal drive in the B2000 totally bypassing the card and the array with the same results.  It still won't load PALO.  The whole install goes well, but no PALO.  Is there a newer version of PALO that isn't on the 2.4.20-32 release that I could try?
derek
 Derek Engelhaupt <derekengelhaupt@rocketmail.com> wrote:
Basically my B2000 with the A4977A PCI EG graphics card starts up and allows me to load all the way until making the system bootable.  Then I get an error saying PALO won't load and then dumps me all the way back to the "choose a language" screen.  It's so weird because the card and the disks hanging off of the card are out of my C360 and functioned great with it.  I think I will blow away the the LUN in the array that I'm using, format it and try again starting with the disk partitioning.  It does seem to want to use the EG graphics card though.  As a side note, I think it's cool that the front LCD screen tells me I'm running Linux and the current kernel revision.  Any ideas? 
derek 
 "Copeland, Daniel" <Daniel.Copeland@alcoa.com> wrote: Thanks. The latest netinst iso worked...

-----Original Message-----
From: Thibaut VARENE [mailto:varenet@esiee.fr]
Sent: Thursday, February 27, 2003 6:51 PM
To: Copeland, Daniel
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: question about pa-risc linux on hp b2600 workstation


On Thu, 27 Feb 2003 10:40:42 -0500
"Copeland, Daniel" wrote:

> Hello,
> 
> Did you have to get special usb drivers to be able to install? I
downloaded
> the debian v. 3.0 iso and it boots fine, I just can't acknowledge w/ my
> keyboard...

perhaps you should read the section related to b2600 on this page:
http://pateam.esiee.fr/list.html

the mailing-list archive:
http://www.fr.parisc-linux.org/mailing-lists/

eventually the FAQ (there's an entry about USB keyboards)
http://www.fr.paris c-linux.org/faq/

and the Boot HOWTO
http://pateam.esiee.fr/doc.html

everything is explained there.

you need one of the latest netinst isos to install your box:
http://pateam.esiee.fr/download.html

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

(mail CC'd to the m-l to feed the archive)
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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<P>Well all efforts have failed.&nbsp; I now tried to use an internal drive in the B2000 totally bypassing the card and the array with the same results.&nbsp; It still won't load PALO.&nbsp; The whole install goes well, but no PALO.&nbsp; Is there a newer version of PALO that isn't on the 2.4.20-32 release that I could try?
<P>derek
<P>&nbsp;<B><I>Derek Engelhaupt &lt;derekengelhaupt@rocketmail.com&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">
<P>Basically my B2000 with the A4977A PCI EG graphics card starts up and allows me to load all the way until making the system bootable.&nbsp; Then I get an error saying PALO won't load and then dumps me all the way back to the "choose a language" screen.&nbsp; It's so weird because the card and the disks hanging off of the card are out of my C360 and functioned great with it.&nbsp; I think I will blow away the the LUN in the array that I'm using, format it and try again starting with the disk partitioning.&nbsp; It does seem to want to use the EG graphics card though.&nbsp; As a side note, I think it's cool that the front LCD screen tells me I'm running Linux and the current kernel revision.&nbsp; Any ideas? 
<P>derek 
<P>&nbsp;<B><I>"Copeland, Daniel" &lt;Daniel.Copeland@alcoa.com&gt;</I></B> wrote: 
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">Thanks. The latest netinst iso worked...<BR><BR>-----Original Message-----<BR>From: Thibaut VARENE [mailto:varenet@esiee.fr]<BR>Sent: Thursday, February 27, 2003 6:51 PM<BR>To: Copeland, Daniel<BR>Cc: parisc-linux@lists.parisc-linux.org<BR>Subject: Re: question about pa-risc linux on hp b2600 workstation<BR><BR><BR>On Thu, 27 Feb 2003 10:40:42 -0500<BR>"Copeland, Daniel" <DANIEL.COPELAND@ALCOA.COM>wrote:<BR><BR>&gt; Hello,<BR>&gt; <BR>&gt; Did you have to get special usb drivers to be able to install? I<BR>downloaded<BR>&gt; the debian v. 3.0 iso and it boots fine, I just can't acknowledge w/ my<BR>&gt; keyboard...<BR><BR>perhaps you should read the section related to b2600 on this page:<BR>http://patea
 m.esiee.fr/list.html<BR><BR>the mailing-list archive:<BR>http://www.fr.parisc-linux.org/mailing-lists/<BR><BR>eventually the FAQ (there's an entry about USB keyboards)<BR>http://www.fr.paris c-linux.org/faq/<BR><BR>and the Boot HOWTO<BR>http://pateam.esiee.fr/doc.html<BR><BR>everything is explained there.<BR><BR>you need one of the latest netinst isos to install your box:<BR>http://pateam.esiee.fr/download.html<BR><BR>HTH,<BR><BR><BR>Thibaut VARENE<BR>The PA/Linux ESIEE Team<BR>http://pateam.esiee.fr/<BR><BR>(mail CC'd to the m-l to feed the archive)<BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE>
<P><BR>
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Subject: Re: [parisc-linux] trouble loading from netinst ISO on B2000
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I just don't understand what's wrong with your box. We installed=20
several B2k here with the netinst we provide; never had a problem.

I strongly recommend you try to get back to a very basic configuration=20=

(no fancy cards...) and boot on the internal CD...

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

Le lundi, 10 mar 2003, =E0 16:15 Europe/Paris, Derek Engelhaupt a =E9crit =
:

> Well all efforts have failed.=A0 I now tried to use an internal drive =
in=20
> the B2000 totally bypassing the card and the array with the same=20
> results.=A0 It still won't load PALO.=A0 The whole install goes well, =
but=20
> no PALO.=A0 Is there a newer version of PALO that isn't on the =
2.4.20-32=20
> release that I could try?
>
> derek
>
> =A0Derek Engelhaupt <derekengelhaupt@rocketmail.com> wrote:
>
> Basically my B2000 with the A4977A PCI EG graphics card starts up and=20=

> allows me to load all the way until making the system bootable.=A0 =
Then=20
> I get an error saying PALO won't load and then dumps me all the way=20
> back to the "choose a language" screen.=A0 It's so weird because the=20=

> card and the disks hanging off of the card are out of my C360 and=20
> functioned great with it.=A0 I think I will blow away the the LUN in =
the=20
> array that I'm using, format it and try again starting with the disk=20=

> partitioning.=A0 It does seem to want to use the EG graphics card=20
> though.=A0 As a side note, I think it's cool that the front LCD screen=20=

> tells me I'm running Linux and the current kernel revision.=A0 Any > =
ideas?
>
> derek
>
> =A0"Copeland, Daniel" <Daniel.Copeland@alcoa.com> wrote:
>
> Thanks. The latest netinst iso worked...
>
> -----Original Message-----
> From: Thibaut VARENE [mailto:varenet@esiee.fr]
> Sent: Thursday, February 27, 2003 6:51 PM
> To: Copeland, Daniel
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: question about pa-risc linux on hp b2600 workstation
>
>
> On Thu, 27 Feb 2003 10:40:42 -0500
> "Copeland, Daniel" wrote:
>
> > Hello,
> >
> > Did you have to get special usb drivers to be able to install? I
> downloaded
> > the debian v. 3.0 iso and it boots fine, I just can't acknowledge w/=20=

> my
> > keyboard...
>
> perhaps you should read the section related to b2600 on this page:
> http://pateam.esiee.fr/list.html
>
> the mailing-list archive:
> http://www.fr.parisc-linux.org/mailing-lists/
>
> eventually the FAQ (there's an entry about USB keyboards)
> http://www.fr.paris c-linux.org/faq/
>
> and the Boot HOWTO
> http://pateam.esiee.fr/doc.html
>
> everything is explained there.
>
> you need one of the latest netinst isos to install your box:
> http://pateam.esiee.fr/download.html
>
> HTH,
>
>
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://pateam.esiee.fr/
>
> (mail CC'd to the m-l to feed the archive)
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
>
<image.tiff>
>
> Do you Yahoo!?
> Yahoo! Tax Center - forms, calculators, tips, and more
>
>
>
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>
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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: Re: [parisc-linux] trouble loading from netinst ISO on B2000
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Hello Derek,

I also install a b2k with the help of a netinstall image (but a long time
ago :) ).

If I well understand your system is basically installed on your partitionned
disk (excepted that palo failled to completly install)?

Could you give us more details on those disk and its partitions?

By the way, in the install menu there is an option to 'execute a shell'
(IIRC).

Always IIRC, cfdisk should be install on your netinstall image and would
allow you to printout those details in the shell you just launch as above?

Before you exist this shell, can you still give us the content of palo.conf
installed on your disk?

Well, I do not yet test usb stuff on this b2k (as for the interanl gfx there
is not yet support I only use serial console) but IMHO there is no relation
with the failure of the palo install.

Joel


>-- Original Message --
>From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
>Subject: Re: [parisc-linux] trouble loading from netinst ISO on B2000
>To: parisc-linux@lists.parisc-linux.org
>Date: Mon, 10 Mar 2003 07:15:59 -0800 (PST)
>
>
>
>Well all efforts have failed.  I now tried to use an internal drive in
the
>B2000 totally bypassing the card and the array with the same results.
It
>still won't load PALO.  The whole install goes well, but no PALO.  Is there
>a newer version of PALO that isn't on the 2.4.20-32 release that I could
>try?
>derek
> Derek Engelhaupt <derekengelhaupt@rocketmail.com> wrote:
>Basically my B2000 with the A4977A PCI EG graphics card starts up and allows
>me to load all the way until making the system bootable.  Then I get an
error
>saying PALO won't load and then dumps me all the way back to the "choose
>a language" screen.  It's so weird because the card and the disks hanging
>off of the card are out of my C360 and functioned great with it.  I think
>I will blow away the the LUN in the array that I'm using, format it and
try
>again starting with the disk partitioning.  It does seem to want to use
the
>EG graphics card though.  As a side note, I think it's cool that the front
>LCD screen tells me I'm running Linux and the current kernel revision.
 Any
>ideas?
>derek
> "Copeland, Daniel" <Daniel.Copeland@alcoa.com> wrote: Thanks. The latest
>netinst iso worked...
>
>-----Original Message-----
>From: Thibaut VARENE [mailto:varenet@esiee.fr]
>Sent: Thursday, February 27, 2003 6:51 PM
>To: Copeland, Daniel
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: Re: question about pa-risc linux on hp b2600 workstation
>
>
>On Thu, 27 Feb 2003 10:40:42 -0500
>"Copeland, Daniel" wrote:
>
>> Hello,
>>
>> Did you have to get special usb drivers to be able to install? I
>downloaded
>> the debian v. 3.0 iso and it boots fine, I just can't acknowledge w/
my
>> keyboard...
>
>perhaps you should read the section related to b2600 on this page:
>http://pateam.esiee.fr/list.html
>
>the mailing-list archive:
>http://www.fr.parisc-linux.org/mailing-lists/
>
>eventually the FAQ (there's an entry about USB keyboards)
>http://www.fr.paris c-linux.org/faq/
>
>and the Boot HOWTO
>http://pateam.esiee.fr/doc.html
>
>everything is explained there.
>
>you need one of the latest netinst isos to install your box:
>http://pateam.esiee.fr/download.html
>
>HTH,
>
>
>Thibaut VARENE
>The PA/Linux ESIEE Team
>http://pateam.esiee.fr/
>
>(mail CC'd to the m-l to feed the archive)
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
>---------------------------------
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>Yahoo! Tax Center - forms, calculators, tips, and more
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---------------------------------
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On Mon, Mar 10, 2003 at 07:15:59AM -0800, Derek Engelhaupt wrote:
> Well all efforts have failed.  I now tried to use an internal drive in
> the B2000 totally bypassing the card and the array with the same results.
> It still won't load PALO.  The whole install goes well, but no PALO.

The last sentence doesn't agree with what you wrote earlier.

The above sounds like you are trying to boot from the wrong disk.
AFAIK, the debian install does not change the primary/secondary boot
path to point to the disk you installed on. Interrupt the boot
process and direct the primary (firmware) boot to try different disks.

> Is there a newer version of PALO that isn't on the 2.4.20-32 release
> that I could try?

This has nothing to do with palo version.
If PALO failed to load the kernel, then we could talk about PALO
versions.

> Then I get an error saying PALO won't load and then dumps me all the way
> back to the "choose a language" screen.

This sounds more like a bug in the installer scripts.
I suggest trying to work around it by going into the shell
and running palo by hand.  PALO HowTo is here:
	http://en.tldp.org/HOWTO/PA-RISC-Linux-Boot-HOWTO/palo.html

grant


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Subject: [parisc-linux] Re: ioctl32 cleanup -- rest of architectures
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Could you cc myself or parisc-linux@parisc-linux.org in future please?

first, you've called it `compact_sys_ioctl' -- it should be `compat_sys_ioctl'.
it's compatible, not really small ;-)

second, you've not changed the definition in arch/parisc/kernel/syscall.S:

-	ENTRY_DIFF(ioctl)
+	ENTRY_COMP(ioctl)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Sometimes I really amaze myself at how moronic I can be at times.  My problem with PALO was that I didn't set the /boot partition to f0 as the files system type during the disk partitioning.  Of course PALO didn't know what to do with that.  Duh.....I feel like an idiot....  
derek
 
Joel Soete <jsoe0708@tiscali.be> wrote:Hello Derek,

I also install a b2k with the help of a netinstall image (but a long time
ago :) ).

If I well understand your system is basically installed on your partitionned
disk (excepted that palo failled to completly install)?

Could you give us more details on those disk and its partitions?

By the way, in the install menu there is an option to 'execute a shell'
(IIRC).

Always IIRC, cfdisk should be install on your netinstall image and would
allow you to printout those details in the shell you just launch as above?

Before you exist this shell, can you still give us the content of palo.conf
installed on your disk?

Well, I do not yet test usb stuff on this b2k (as for the interanl gfx there
is not yet support I only use serial console) but IMHO there is no relation
with the failure of the palo install.

Joel


>-- Original Message --
>From: Derek Engelhaupt 
>Subject: Re: [parisc-linux] trouble loading from netinst ISO on B2000
>To: parisc-linux@lists.parisc-linux.org
>Date: Mon, 10 Mar 2003 07:15:59 -0800 (PST)
>
>
>
>Well all efforts have failed. I now tried to use an internal drive in
the
>B2000 totally bypassing the card and the array with the same results.
It
>still won't load PALO. The whole install goes well, but no PALO. Is there
>a newer version of PALO that isn't on the 2.4.20-32 release that I could
>try?
>derek
> Derek Engelhaupt wrote:
>Basically my B2000 with the A4977A PCI EG graphics card starts up and allows
>me to load all the way until making the system bootable. Then I get an
error
>saying PALO won't load and then dumps me all the way back to the "choose
>a language" screen. It's so weird because the card and the disks hanging
>off of the card are out of my C360 and functioned great with it. I think
>I will blow away the the LUN in the array that I'm using, format it and
try
>again starting with the disk partitioning. It does seem to want to use
the
>EG graphics card though. As a side note, I think it's cool that the front
>LCD screen tells me I'm running Linux and the current kernel revision.
Any
>ideas?
>derek
> "Copeland, Daniel" wrote: Thanks. The latest
>netinst iso worked...
>
>-----Original Message-----
>From: Thibaut VARENE [mailto:varenet@esiee.fr]
>Sent: Thursday, February 27, 2003 6:51 PM
>To: Copeland, Daniel
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: Re: question about pa-risc linux on hp b2600 workstation
>
>
>On Thu, 27 Feb 2003 10:40:42 -0500
>"Copeland, Daniel" wrote:
>
>> Hello,
>>
>> Did you have to get special usb drivers to be able to install? I
>downloaded
>> the debian v. 3.0 iso and it boots fine, I just can't acknowledge w/
my
>> keyboard...
>
>perhaps you should read the section related to b2600 on this page:
>http://pateam.esiee.fr/list.html
>
>the mailing-list archive:
>http://www.fr.parisc-linux.org/mailing-lists/
>
>eventually the FAQ (there's an entry about USB keyboards)
>http://www.fr.paris c-linux.org/faq/
>
>and the Boot HOWTO
>http://pateam.esiee.fr/doc.html
>
>everything is explained there.
>
>you need one of the latest netinst isos to install your box:
>http://pateam.esiee.fr/download.html
>
>HTH,
>
>
>Thibaut VARENE
>The PA/Linux ESIEE Team
>http://pateam.esiee.fr/
>
>(mail CC'd to the m-l to feed the archive)
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
>---------------------------------
>Do you Yahoo!?
>Yahoo! Tax Center - forms, calculators, tips, and more
>
>
>---------------------------------
>Do you Yahoo!?
>Yahoo! Tax Center - forms, calculators, tips, and more



---------------------------------
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<P><B><I>Sometimes I really amaze myself at how moronic I can be at times.&nbsp; My problem with PALO was that I didn't set the /boot partition to f0 as the files system type during the disk partitioning.&nbsp; Of course PALO didn't know what to do with that.&nbsp; Duh.....I feel like an idiot....&nbsp; </I></B>
<P><STRONG><EM>derek</EM></STRONG>
<P><B><I></I></B>&nbsp;
<P><B><I>Joel Soete &lt;jsoe0708@tiscali.be&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">Hello Derek,<BR><BR>I also install a b2k with the help of a netinstall image (but a long time<BR>ago :) ).<BR><BR>If I well understand your system is basically installed on your partitionned<BR>disk (excepted that palo failled to completly install)?<BR><BR>Could you give us more details on those disk and its partitions?<BR><BR>By the way, in the install menu there is an option to 'execute a shell'<BR>(IIRC).<BR><BR>Always IIRC, cfdisk should be install on your netinstall image and would<BR>allow you to printout those details in the shell you just launch as above?<BR><BR>Before you exist this shell, can you still give us the content of palo.conf<BR>installed on your disk?<BR><BR>Well, I do not yet test u
 sb stuff on this b2k (as for the interanl gfx there<BR>is not yet support I only use serial console) but IMHO there is no relation<BR>with the failure of the palo install.<BR><BR>Joel<BR><BR><BR>&gt;-- Original Message --<BR>&gt;From: Derek Engelhaupt <DEREKENGELHAUPT@ROCKETMAIL.COM><BR>&gt;Subject: Re: [parisc-linux] trouble loading from netinst ISO on B2000<BR>&gt;To: parisc-linux@lists.parisc-linux.org<BR>&gt;Date: Mon, 10 Mar 2003 07:15:59 -0800 (PST)<BR>&gt;<BR>&gt;<BR>&gt;<BR>&gt;Well all efforts have failed. I now tried to use an internal drive in<BR>the<BR>&gt;B2000 totally bypassing the card and the array with the same results.<BR>It<BR>&gt;still won't load PALO. The whole install goes well, but no PALO. Is there<BR>&gt;a newer version of PALO that isn't on the 2.4.20-32 release
  that I could<BR>&gt;try?<BR>&gt;derek<BR>&gt; Derek Engelhaupt <DEREKENGELHAUPT@ROCKETMAIL.COM>wrote:<BR>&gt;Basically my B2000 with the A4977A PCI EG graphics card starts up and allows<BR>&gt;me to load all the way until making the system bootable. Then I get an<BR>error<BR>&gt;saying PALO won't load and then dumps me all the way back to the "choose<BR>&gt;a language" screen. It's so weird because the card and the disks hanging<BR>&gt;off of the card are out of my C360 and functioned great with it. I think<BR>&gt;I will blow away the the LUN in the array that I'm using, format it and<BR>try<BR>&gt;again starting with the disk partitioning. It does seem to want to use<BR>the<BR>&gt;EG graphics card though. As a side note, I think it's cool that the front<BR>&gt;LCD screen tells me I'm r
 unning Linux and the current kernel revision.<BR>Any<BR>&gt;ideas?<BR>&gt;derek<BR>&gt; "Copeland, Daniel" <DANIEL.COPELAND@ALCOA.COM>wrote: Thanks. The latest<BR>&gt;netinst iso worked...<BR>&gt;<BR>&gt;-----Original Message-----<BR>&gt;From: Thibaut VARENE [mailto:varenet@esiee.fr]<BR>&gt;Sent: Thursday, February 27, 2003 6:51 PM<BR>&gt;To: Copeland, Daniel<BR>&gt;Cc: parisc-linux@lists.parisc-linux.org<BR>&gt;Subject: Re: question about pa-risc linux on hp b2600 workstation<BR>&gt;<BR>&gt;<BR>&gt;On Thu, 27 Feb 2003 10:40:42 -0500<BR>&gt;"Copeland, Daniel" wrote:<BR>&gt;<BR>&gt;&gt; Hello,<BR>&gt;&gt;<BR>&gt;&gt; Did you have to get special usb drivers to be able to install? I<BR>&gt;downloaded<BR>&gt;&gt; the debian v. 3.0 iso and it boots fine, I just can't acknowledge w/<BR>my<BR>&
 gt;&gt; keyboard...<BR>&gt;<BR>&gt;perhaps you should read the section related to b2600 on this page:<BR>&gt;http://pateam.esiee.fr/list.html<BR>&gt;<BR>&gt;the mailing-list archive:<BR>&gt;http://www.fr.parisc-linux.org/mailing-lists/<BR>&gt;<BR>&gt;eventually the FAQ (there's an entry about USB keyboards)<BR>&gt;http://www.fr.paris c-linux.org/faq/<BR>&gt;<BR>&gt;and the Boot HOWTO<BR>&gt;http://pateam.esiee.fr/doc.html<BR>&gt;<BR>&gt;everything is explained there.<BR>&gt;<BR>&gt;you need one of the latest netinst isos to install your box:<BR>&gt;http://pateam.esiee.fr/download.html<BR>&gt;<BR>&gt;HTH,<BR>&gt;<BR>&gt;<BR>&gt;Thibaut VARENE<BR>&gt;The PA/Linux ESIEE Team<BR>&gt;http://pateam.esiee.fr/<BR>&gt;<BR>&gt;(mail CC'd to the m-l to feed the archive)<BR>&gt;_____________________
 __________________________<BR>&gt;parisc-linux mailing list<BR>&gt;parisc-linux@lists.parisc-linux.org<BR>&gt;http://lists.parisc-linux.org/mailman/listinfo/parisc-linux<BR>&gt;<BR>&gt;<BR>&gt;---------------------------------<BR>&gt;Do you Yahoo!?<BR>&gt;Yahoo! Tax Center - forms, calculators, tips, and more<BR>&gt;<BR>&gt;<BR>&gt;---------------------------------<BR>&gt;Do you Yahoo!?<BR>&gt;Yahoo! Tax Center - forms, calculators, tips, and more<BR><BR><BR><BR>---------------------------------<BR>Vous surfez avec une ligne classique ?<BR>Faites des economies avec Tiscali Complete<BR>... Plus d'info sur http://complete.tiscali.be<BR><BR></BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
<a href="http://rd.yahoo.com/finance/mailtagline/*http://taxes.yahoo.com/">Yahoo! Tax Center</a> - forms, calculators, tips, and more
--0-449751268-1047320420=:92762--


From - Thu Nov 08 21:27:02 2018
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Hi!

> Could you cc myself or parisc-linux@parisc-linux.org in future
> please?

Yes, I'll try to cc you.


> first, you've called it `compact_sys_ioctl' -- it should be `compat_sys_ioctl'.
> it's compatible, not really small ;-)

Ouch, stupid typo. Sorry

> second, you've not changed the definition in arch/parisc/kernel/syscall.S:
> 
> -	ENTRY_DIFF(ioctl)
> +	ENTRY_COMP(ioctl)

So I should take arch/parisc/kernel/syscall.S and change
ENTRY_DIFF(ioctl) into ENTRY_COMP(ioctl)? Great, thanx.

[BTW have you actually tested it or are these just first obvious
mistakes?]

								Pavel
-- 
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...vgf orggre jura vgf serr.


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On Mon, Mar 10, 2003 at 07:56:47PM +0100, Pavel Machek wrote:
> So I should take arch/parisc/kernel/syscall.S and change
> ENTRY_DIFF(ioctl) into ENTRY_COMP(ioctl)? Great, thanx.

Exactly.

> [BTW have you actually tested it or are these just first obvious
> mistakes?]

I haven't tested it... no convenient 64-bit box at present.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi!

> > So I should take arch/parisc/kernel/syscall.S and change
> > ENTRY_DIFF(ioctl) into ENTRY_COMP(ioctl)? Great, thanx.
> 
> Exactly.

Thanx, applied, will do "silly name fix" when I get x86-64 back into
working state. [i2c support broke.]
								Pavel
-- 
Horseback riding is like software...
...vgf orggre jura vgf serr.


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Well after my earlier stupid mistakes, getting X (KDE in my case) to run on my B2000 is a small triumph for me.  Using the A4977A PCI EG graphics card it works even though that card is officially not supported in this machine.  Had to make a few tweeks to the XFConfig-4 file to get the USB mouse to work after the initial install, but even the scroll function works on it.  So overall I am very pleased.

derek



---------------------------------
Do you Yahoo!?
Yahoo! Web Hosting - establish your business online
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<P>Well after my earlier stupid mistakes, getting X (KDE in my case) to run on my B2000 is a small triumph for me.&nbsp; Using the A4977A PCI EG graphics card it works even though that card is officially not supported in this machine.&nbsp; Had to make a few tweeks to the XFConfig-4 file to get the USB mouse to work after the initial install, but even the scroll function works on it.&nbsp; So overall I am very pleased.</P>
<P>derek</P><p><br><hr size=1>Do you Yahoo!?<br>
<a href="http://webhosting.yahoo.com/ps/wh3/prod/">Yahoo! Web Hosting</a> - establish your business online
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Subject: [parisc-linux] [3.3 regression; hppa-linux] ICE when optimizing inline code at -O2
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>Submitter-Id:	net
>Originator:	Randolph Chung
>Organization:	Debian
>Confidential:	no
>Synopsis:	[3.3 regression] inline optimization ICE 
>Severity:	serious
>Priority:	medium
>Category:	optimization
>Class:		ice-on-legal-code
>Release:	3.3 20030309 (Debian prerelease) (Debian testing/unstable)
>Environment:
System: Linux gsyprf11.external.hp.com 2.4.20-pa18-UP #1 Sat Jan 4 22:06:52 PST 2003 parisc64 unknown unknown GNU/Linux
Architecture: parisc64

	<machine, os, target, libraries (multiple lines)>
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc hppa-linux
>Description:
see below; code works with gcc-3.2.3	 
This is extracted from allegro. It is similar but not the same as 
optimization/9768
>How-To-Repeat:
gcc-3.3 -O2 -c bug.c
--------------------8< bug.c 8<-------------------
extern int * allegro_errno;
typedef long fixed;
extern inline int fixfloor (fixed x) { if (x >= 0) return (x >> 16); else return ~((~x) >> 16); }
extern inline int fixtoi (fixed x) { return fixfloor(x) + ((x & 0x8000) >> 15); }
extern inline fixed ftofix (double x) { if (x > 32767.0) { *allegro_errno = 34; return 0x7FFFFFFF; } if (x < -32767.0) { *allegro_errno = 34; return -0x7FFFFFFF; } return (long)(x * 65536.0 + (x < 0 ? -0.5 : 0.5)); }
extern inline double fixtof (fixed x) { return (double)x / 65536.0; }
extern inline fixed fixdiv (fixed x, fixed y) { if (y == 0) { *allegro_errno = 34; return (x < 0) ? -0x7FFFFFFF : 0x7FFFFFFF; } else return ftofix(fixtof(x) / fixtof(y)); }
extern inline fixed itofix (int x) { return x << 16; }

int foo(int n) { return fixtoi(fixdiv(itofix(512), itofix(n))); }
--------------------8< bug.c 8<-------------------
>Fix:
	unknown


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From: Morten Sickel <Morten.Sickel@nrpa.no>
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I have an old HP712/80 box running 10.20 that I am thinking about running
linux on. The only problem is that I have to run an old (7.1) Esri arc/info
on the machine. I have seen in the faq that:

"We intend to support 4 binary formats: 
HP/UX SOM 32 bit
Linux ELF 32 bit
HP/UX ELF 64 bit
Linux ELF 64 bit
" 

But I have to admit that it does not help me too much, as:

[cesium:download]$ file /usr/local/arcexe71/bin/arc  
/usr/local/arcexe71/bin/arc:    PA-RISC1.1 shared executable dynamically
linked

is this the same as SOM 32 bit?

After digging around in the mailing list archives, it is also not clear to
me if I can read the existing disks on my WS. It would make the transistion
easier, or I could install linux on a spare disk, boot from that and test if
it works.

I also need to run the flexlm licence manager. Does anybody know if that
works, and if the ids that are used there still are valid under linux.

(yes, I know about grass, and I am in fact using it under i386 linux, but
for backward compatibility, I would prefer to still have arc/info around)

regards,
-- 
Morten Sickel
Norwegian Radiation Protection Authority
http://www.nrpa.no 


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On Tue, Mar 11, 2003 at 01:10:28PM +0100, Morten Sickel wrote:
> I have an old HP712/80 box running 10.20 that I am thinking about running
> linux on. The only problem is that I have to run an old (7.1) Esri arc/info
> on the machine. I have seen in the faq that:
> 
> "We intend to support 4 binary formats: 
> HP/UX SOM 32 bit
> Linux ELF 32 bit
> HP/UX ELF 64 bit
> Linux ELF 64 bit
> " 

Sorry about that.  grant linuxcared up the FAQ and i didn't notice.
i just fixed it and the new entry reads as follows:

	# What binaries will PA-RISC Linux support?

	We currently only support 32-bit ELF executables. Initial bringup
	work was accomplished using HP-UX emulation, but that emulation
	has not been maintained. Eventually, we hope to have support for
	HP-UX 32-bit SOM executables working again, and add support for
	64-bit ELF executables, both Linux & HP-UX.

	We're not promising to get all HP-UX binaries running on Linux. In
	particular those which are multithreaded are unlikely to ever
	be supported.

Does that answer all your questions?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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>         # What binaries will PA-RISC Linux support?
>
>         We currently only support 32-bit ELF executables. Initial bringup
>         work was accomplished using HP-UX emulation, but that emulation
>         has not been maintained. Eventually, we hope to have support for
>         HP-UX 32-bit SOM executables working again, and add support for
>         64-bit ELF executables, both Linux & HP-UX.
>
>         We're not promising to get all HP-UX binaries running on Linux. In
>         particular those which are multithreaded are unlikely to ever
>         be supported.
>
> Does that answer all your questions?
>

Actually that is not completely correct.  There was some more work done,
including support for HP-UX shared libraries and some additional system
call support.  But there are still some big holes, and as is mentioned
above, there are things we will never support.

But, the last time this was worked on (October 2001), Nathan Neulinger got
a HP-UX flexlm binary working under parisc-linux.  We may very well have
broken it since then. :-)

John Marvin
jsm@fc.hp.com


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: [parisc-linux] ndelay() ?
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Hi all,

In the new 2.4.21-pre5 we need a ndelay() function (ide support for b2k at
least).

Some sparc[64], ppc supply this ndelay as a modified udelay (parameter time
1000);
we could also do it for our parisc as follow:
(see include/asm-parisc/delay.h)
...
static __inline__ void __ndelay(unsigned long usecs) {
	__cr16_delay(usecs * ((unsigned long)boot_cpu_data.cpu_hz / 1000UL));
}

#define ndelay(n) __ndelay(n)
...

OTC 2.5 proposed another solution:

(see include/linux/delay.h)

#ifndef ndelay
#define ndelay(x)    udelay(((x)+999)/1000)
#endif

What is the best?

Thanks for advise,
    Joel


---------------------------------
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Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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On Tue, 2003-03-11 at 16:27, Joel Soete wrote:
> Hi all,
> 
> In the new 2.4.21-pre5 we need a ndelay() function (ide support for b2k at
> least).

If you can't do ndelay well, udelay(1) as an equivalent is just fine.
What it must be is at least the required nSec delay



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Subject: Re: [parisc-linux] ndelay() ?
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>-- Original Message --
>Subject: Re: [parisc-linux] ndelay() ?
>From: Alan Cox <alan@lxorguk.ukuu.org.uk>
>To: Joel Soete <jsoe0708@tiscali.be>
>Cc: parisc-linux@lists.parisc-linux.org
>Date: 11 Mar 2003 19:10:37 +0000
>
>
>On Tue, 2003-03-11 at 16:27, Joel Soete wrote:
>> Hi all,
>> 
>> In the new 2.4.21-pre5 we need a ndelay() function (ide support for b2k
>at
>> least).
>
>If you can't do ndelay well, udelay(1) as an equivalent is just fine.
>What it must be is at least the required nSec delay
>

Many thanks Alan,
    Joel

---------------------------------
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Subject: Re: [parisc-linux] ndelay() ?
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>-- Original Message --
>Subject: Re: [parisc-linux] ndelay() ?
>From: Alan Cox <alan@lxorguk.ukuu.org.uk>
>To: Joel Soete <jsoe0708@tiscali.be>
>Cc: parisc-linux@lists.parisc-linux.org
>Date: 11 Mar 2003 19:10:37 +0000
>
>
>On Tue, 2003-03-11 at 16:27, Joel Soete wrote:
>> Hi all,
>> 
>> In the new 2.4.21-pre5 we need a ndelay() function (ide support for b2k
>at
>> least).
>
>If you can't do ndelay well, udelay(1) as an equivalent is just fine.
>What it must be is at least the required nSec delay
>
That boots fine (and ide cdrom seems to works fine also) :)

Cheers,
    Joel


---------------------------------
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Subject: [parisc-linux] bootp/tftpd :(
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hi all,

im trying the lifimage 2.4.20-pa18-200301 from the esiee.fr pa team with
a 712/60 and a debian linux woody stable as as bootp/tftpd boot server.

inetd.conf:
bootps          dgram   udp     wait    root    /usr/sbin/bootpd  bootpd =
-i -t=20
120
tftp    dgram   udp     wait    root    /usr/sbin/tcpd  /usr/sbin/in.tftp=
d=20
/tftpboot


the bootptab entry:
pa:tc=3Dallhost:ht=3Dether:bf=3Dlifimage.img:hd=3D/tftpboot:ha=3D080009C9=
A102:ip=3D10.0.0.12:to=3D7200


BOOT_ADMIN> boot lan .. and nothing happens :)


my syslog:
Mar 12 00:04:17 vivaio in.tftpd[786]: connect from 10.0.0.12
Mar 12 00:04:17 vivaio tftpd[787]: tftpd: trying to get file:=20
/tftpboot/lifimage.img

and tcpdump ..
tcpdump: listening on eth0
00:05:39.631149 10.0.0.11.bootps > 10.0.0.12.bootpc:  xid:0x420b596a=20
Y:10.0.0.12 S:10.0.0.11 sname "vivaio" [|bootp] (DF)
00:05:39.970369 10.0.0.12.51998 > 10.0.0.11.tftp:  516 RRQ=20
"/tftpboot/lifimage.img" [tos 0x10]
00:05:40.024953 10.0.0.11.1048 > 10.0.0.12.51998:  udp 516 (DF)
00:05:40.026317 10.0.0.12.51998 > 10.0.0.11.1048:  udp 4 [tos 0x10]
00:05:40.026458 10.0.0.11.1048 > 10.0.0.12.51998:  udp 516 (DF)
00:05:40.027593 10.0.0.12.51998 > 10.0.0.11.1048:  udp 4 [tos 0x10]
00:05:40.027701 10.0.0.11.1048 > 10.0.0.12.51998:  udp 516 (DF)
00:05:40.028837 10.0.0.12.51998 > 10.0.0.11.1048:  udp 4 [tos 0x10]
00:05:40.028940 10.0.0.11.1048 > 10.0.0.12.51998:  udp 516 (DF)


sigh :((

any clues? thanks in advance.
seeyouu byee.,'





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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] bootp/tftpd :(
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In your case 1) should be enough.

-----
This is a template message.

1) Read the PA-RISC/Linux Boot HOWTO
http://pateam.esiee.fr/doc.html

2) Read the FAQ
http://www.fr.parisc-linux.org/faq/

3) Read the parisc-linux mailing-list archive
http://www.fr.parisc-linux.org/mailing-lists/

4) Check the Hardware Database
http://hwdb.parisc-linux.org/

5) Check the supported machines list
http://pateam.esiee.fr/list.html

6) Read the "HOWTO Report a Kernel Bug"
http://www.fr.parisc-linux.org/faq/kernelbug-howto.html

7) Read the "HOWTO Build a PA-RISC/Linux Kernel"
http://www.fr.parisc-linux.org/kernel/

----
That template may grow as some questions will reappear :P


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


On Wed, 12 Mar 2003 00:11:21 +0100
"trnepal" <trnepal@papuasia.org> wrote:

> 
> 
> hi all,
> 
> im trying the lifimage 2.4.20-pa18-200301 from the esiee.fr pa team with
> a 712/60 and a debian linux woody stable as as bootp/tftpd boot server.
> 
> inetd.conf:
> bootps          dgram   udp     wait    root    /usr/sbin/bootpd  bootpd -i -t 
> 120
> tftp    dgram   udp     wait    root    /usr/sbin/tcpd  /usr/sbin/in.tftpd 
> /tftpboot
> 
> 
> the bootptab entry:
> pa:tc=allhost:ht=ether:bf=lifimage.img:hd=/tftpboot:ha=080009C9A102:ip=10.0.0.12:to=7200
> 
> 
> BOOT_ADMIN> boot lan .. and nothing happens :)
> 
> 
> my syslog:
> Mar 12 00:04:17 vivaio in.tftpd[786]: connect from 10.0.0.12
> Mar 12 00:04:17 vivaio tftpd[787]: tftpd: trying to get file: 
> /tftpboot/lifimage.img
> 
> and tcpdump ..
> tcpdump: listening on eth0
> 00:05:39.631149 10.0.0.11.bootps > 10.0.0.12.bootpc:  xid:0x420b596a 
> Y:10.0.0.12 S:10.0.0.11 sname "vivaio" [|bootp] (DF)
> 00:05:39.970369 10.0.0.12.51998 > 10.0.0.11.tftp:  516 RRQ 
> "/tftpboot/lifimage.img" [tos 0x10]
> 00:05:40.024953 10.0.0.11.1048 > 10.0.0.12.51998:  udp 516 (DF)
> 00:05:40.026317 10.0.0.12.51998 > 10.0.0.11.1048:  udp 4 [tos 0x10]
> 00:05:40.026458 10.0.0.11.1048 > 10.0.0.12.51998:  udp 516 (DF)
> 00:05:40.027593 10.0.0.12.51998 > 10.0.0.11.1048:  udp 4 [tos 0x10]
> 00:05:40.027701 10.0.0.11.1048 > 10.0.0.12.51998:  udp 516 (DF)
> 00:05:40.028837 10.0.0.12.51998 > 10.0.0.11.1048:  udp 4 [tos 0x10]
> 00:05:40.028940 10.0.0.11.1048 > 10.0.0.12.51998:  udp 516 (DF)
> 
> 
> sigh :((
> 
> any clues? thanks in advance.
> seeyouu byee.,'
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


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My name is Willian I am from Brazil, I have a personal computer RISC HP =
9000 I Model D 370 =20
I am trying to install DEBIAN 3.0, but I am having some problems in the =
hour of the installation. =20
I inserted the CD in the unit and I pressed the key space, I typed: bo =
8/16/5.2.0 and he began for the cd, he asked something on IPL I answered =
Y and later he asked me something about memory, I placed my memory and =
he/she asked something on vmlinux 32 or 64, I changed for 64, later I =
pressed " b "  =20
he brought me the following answer: =20
 =20
 =20
 Command line for kernel :  ramdisk_size=3D2663046 root =3D /dev/ram =
console=3Dtty0 TERM=3Dvt102 palo_kernel=3D0/vmlinux64
selected kernel: /vmlinux64 from partition 0
selected ramdisk:/ramdisk from partition 0
.
.
.
.
loading ramdisk 2663046 bytes@2fd65000...
Branching to kernel entry point 0x0010000. If this the last
Message you, you may need to switch you console . this is a common =
symptom -- search the FAQ and mailing at parisc-linux.org

what could be? =20
Thank you  =20
Willian


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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>My name is Willian I am from Brazil, I =
have a=20
personal computer RISC HP 9000 I Model D 370&nbsp; <BR>I am trying to =
install=20
DEBIAN 3.0, but I am having some problems in the hour of the =
installation.&nbsp;=20
<BR>I inserted the CD in the unit and I pressed the key space, I typed: =
bo=20
8/16/5.2.0 and he began for the cd, he asked something on IPL I answered =
Y and=20
later he asked me something about memory, I placed my memory and he/she =
asked=20
something on vmlinux 32 or 64, I changed for 64, later I pressed " b=20
"&nbsp;&nbsp; <BR>he brought me the following=20
answer:&nbsp;&nbsp;<BR>&nbsp;&nbsp;<BR>&nbsp;&nbsp;<BR>&nbsp;</FONT><FONT=
=20
face=3DArial size=3D2>Command line for kernel :&nbsp; =
ramdisk_size=3D2663046 root =3D=20
/dev/ram console=3Dtty0 TERM=3Dvt102 =
palo_kernel=3D0/vmlinux64</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>selected kernel: /vmlinux64 from =
partition=20
0</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>selected ramdisk:/ramdisk from =
partition=20
0</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>loading ramdisk 2663046 <A=20
href=3D"mailto:bytes@2fd65000">bytes@2fd65000</A>...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Branching to kernel entry point =
0x0010000. If this=20
the last</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Message you, you may need to switch you =
console .=20
this is a common symptom -- search the FAQ and mailing at=20
parisc-linux.org</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>what could be?&nbsp; <BR>Thank =
you&nbsp;&nbsp;=20
<BR>Willian</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV></BODY></HTML>

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From: =?ISO-8859-15?Q?R=FCdiger_Scholz?= <r.scholz@bluehash.de>
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Subject: [parisc-linux] Compile-Failure Kernel 2.5.64-pa4
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Hi there,

I tried to compiled the newest kernel from CVS. After "make distclean" 
and "make oldconfig", "make vmlinux" stops with the following error:

make -f scripts/Makefile.build obj=drivers/input/misc
  gcc -Wp,-MD,drivers/input/misc/.gsc_ps2.o.d -D__KERNEL__ -Iinclude 
-Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing 
-fno-common -pipe -mno-space-regs -mfast-indirect-calls -mdisable-fpregs 
-ffunction-sections -march=1.1 -mschedule=7100LC -fomit-frame-pointer 
-nostdinc -iwithprefix include    -DKBUILD_BASENAME=gsc_ps2 
-DKBUILD_MODNAME=gsc_ps2 -c -o drivers/input/misc/gsc_ps2.o 
drivers/input/misc/gsc_ps2.c
drivers/input/misc/gsc_ps2.c:59:27: linux/pc_keyb.h: Datei oder 
Verzeichnis nicht gefunden
drivers/input/misc/gsc_ps2.c:345:40: macro "input_regs" requires 2 
arguments, but only 1 given
drivers/input/misc/gsc_ps2.c: In function `gscps2_kbd_docode':
drivers/input/misc/gsc_ps2.c:345: `input_regs' undeclared (first use in 
this function)
drivers/input/misc/gsc_ps2.c:345: (Each undeclared identifier is 
reported only once
drivers/input/misc/gsc_ps2.c:345: for each function it appears in.)
drivers/input/misc/gsc_ps2.c:392:32: macro "input_regs" requires 2 
arguments, but only 1 given
drivers/input/misc/gsc_ps2.c: In function `gscps2_mouse_docode':
drivers/input/misc/gsc_ps2.c:392: `input_regs' undeclared (first use in 
this function)
drivers/input/misc/gsc_ps2.c: In function `gscps2_hpkeyb_event':
drivers/input/misc/gsc_ps2.c:454: `KBD_CMD_SET_LEDS' undeclared (first 
use in this function)
drivers/input/misc/gsc_ps2.c:471: `KBD_CMD_ENABLE' undeclared (first use 
in this function)
drivers/input/misc/gsc_ps2.c: In function `gscps2_kbd_probe':
drivers/input/misc/gsc_ps2.c:501: `KBD_CMD_SET_LEDS' undeclared (first 
use in this function)
drivers/input/misc/gsc_ps2.c:503: `KBD_CMD_ENABLE' undeclared (first use 
in this function)
drivers/input/misc/gsc_ps2.c: In function `gscps2_mouse_probe':
drivers/input/misc/gsc_ps2.c:561: `AUX_ENABLE_DEV' undeclared (first use 
in this function)
drivers/input/misc/gsc_ps2.c: In function `gscps2_probe':
drivers/input/misc/gsc_ps2.c:584: warning: `ret' might be used 
uninitialized in this function
make[3]: *** [drivers/input/misc/gsc_ps2.o] Fehler 1
make[2]: *** [drivers/input/misc] Fehler 2
make[1]: *** [drivers/input] Fehler 2
make: *** [drivers] Fehler 2
ruediger@gandalf:/usr/src/linux-2.5$

Can I delete the line, which includes "linux/pc_keyb" or how can I avoid 
this error?

TIA, Rdiger



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From: "M. Grabert" <xam@cs.ucc.ie>
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Subject: Re: [parisc-linux] PARISC hp 9000 model D 370
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On Wed, 12 Mar 2003, Willian Ricardo wrote:

> My name is Willian I am from Brazil, I have a personal computer RISC HP 9000 I Model D 370
> I am trying to install DEBIAN 3.0, but I am having some problems in the hour of the installation.
> I inserted the CD in the unit and I pressed the key space, I typed: bo 8/16/5.2.0 and he began for the cd, he asked something on IPL I answered Y and later he asked me something about memory, I placed my memory and he/she asked something on vmlinux 32 or 64, I changed for 64, later I pressed " b "
> he brought me the following answer:

Use 32bit for the D370!
IIRC 64bit is just for 64bit ONLY HP-PA boxes, such as the A500 and L2000.
Please read the FAQ at http://www.parisc-linux.org/faq/index.html#support64bit.

greetings max



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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Compile-Failure Kernel 2.5.64-pa4
Date: Wed, 12 Mar 2003 15:18:44 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:17902

that's 2.5, aka _development_ kernel, and the keyboard driver is=20
b0rken. There'll be a fix soon, please be patient; but unless you want=20=

to contribute to 2.5, you don't want to use it.

Anyway, if your box boots using serial console, you don't need that=20
driver.

Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

Le mercredi, 12 mar 2003, =E0 14:52 Europe/Paris, R=FCdiger Scholz a =
=E9crit :

> Hi there,
>
> I tried to compiled the newest kernel from CVS. After "make distclean"=20=

> and "make oldconfig", "make vmlinux" stops with the following error:
>
> make -f scripts/Makefile.build obj=3Ddrivers/input/misc
>  gcc -Wp,-MD,drivers/input/misc/.gsc_ps2.o.d -D__KERNEL__ -Iinclude=20
> -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing=20
> -fno-common -pipe -mno-space-regs -mfast-indirect-calls=20
> -mdisable-fpregs -ffunction-sections -march=3D1.1 -mschedule=3D7100LC=20=

> -fomit-frame-pointer -nostdinc -iwithprefix include   =20
> -DKBUILD_BASENAME=3Dgsc_ps2 -DKBUILD_MODNAME=3Dgsc_ps2 -c -o=20
> drivers/input/misc/gsc_ps2.o drivers/input/misc/gsc_ps2.c
> drivers/input/misc/gsc_ps2.c:59:27: linux/pc_keyb.h: Datei oder=20
> Verzeichnis nicht gefunden
> drivers/input/misc/gsc_ps2.c:345:40: macro "input_regs" requires 2=20
> arguments, but only 1 given
> drivers/input/misc/gsc_ps2.c: In function `gscps2_kbd_docode':
> drivers/input/misc/gsc_ps2.c:345: `input_regs' undeclared (first use=20=

> in this function)
> drivers/input/misc/gsc_ps2.c:345: (Each undeclared identifier is=20
> reported only once
> drivers/input/misc/gsc_ps2.c:345: for each function it appears in.)
> drivers/input/misc/gsc_ps2.c:392:32: macro "input_regs" requires 2=20
> arguments, but only 1 given
> drivers/input/misc/gsc_ps2.c: In function `gscps2_mouse_docode':
> drivers/input/misc/gsc_ps2.c:392: `input_regs' undeclared (first use=20=

> in this function)
> drivers/input/misc/gsc_ps2.c: In function `gscps2_hpkeyb_event':
> drivers/input/misc/gsc_ps2.c:454: `KBD_CMD_SET_LEDS' undeclared (first=20=

> use in this function)
> drivers/input/misc/gsc_ps2.c:471: `KBD_CMD_ENABLE' undeclared (first=20=

> use in this function)
> drivers/input/misc/gsc_ps2.c: In function `gscps2_kbd_probe':
> drivers/input/misc/gsc_ps2.c:501: `KBD_CMD_SET_LEDS' undeclared (first=20=

> use in this function)
> drivers/input/misc/gsc_ps2.c:503: `KBD_CMD_ENABLE' undeclared (first=20=

> use in this function)
> drivers/input/misc/gsc_ps2.c: In function `gscps2_mouse_probe':
> drivers/input/misc/gsc_ps2.c:561: `AUX_ENABLE_DEV' undeclared (first=20=

> use in this function)
> drivers/input/misc/gsc_ps2.c: In function `gscps2_probe':
> drivers/input/misc/gsc_ps2.c:584: warning: `ret' might be used=20
> uninitialized in this function
> make[3]: *** [drivers/input/misc/gsc_ps2.o] Fehler 1
> make[2]: *** [drivers/input/misc] Fehler 2
> make[1]: *** [drivers/input] Fehler 2
> make: *** [drivers] Fehler 2
> ruediger@gandalf:/usr/src/linux-2.5$
>
> Can I delete the line, which includes "linux/pc_keyb" or how can I=20
> avoid this error?
>
> TIA, R=FCdiger
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] PARISC hp 9000 model D 370
Date: Wed, 12 Mar 2003 14:29:36 +0000
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To: Willian Ricardo <willian@mococasa.com.br>
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On Wed, Mar 12, 2003 at 10:19:57AM -0300, Willian Ricardo wrote:
> loading ramdisk 2663046 bytes@2fd65000...
> Branching to kernel entry point 0x0010000. If this the last
> Message you, you may need to switch you console . this is a common symptom -- search the FAQ and mailing at parisc-linux.org

Another possibility with the D class is that it has the Remote Management
card installed.  The kernel in Debian 3.0 doesn't support it; you have
to remove it.  Later kernels support it just fine, but you have to use
ttyB0 not ttyS0.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] bootp/tftpd :(
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Something like that used to be the default footer when receiving messages
from the JServ mailing list ;)

----- Original Message -----
From: "Thibaut VARENE" <varenet@esiee.fr>
To: "trnepal" <trnepal@papuasia.org>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Wednesday, March 12, 2003 9:52 AM
Subject: Re: [parisc-linux] bootp/tftpd :(


> In your case 1) should be enough.
>
> -----
> This is a template message.
>
> 1) Read the PA-RISC/Linux Boot HOWTO
> http://pateam.esiee.fr/doc.html
>
> 2) Read the FAQ
> http://www.fr.parisc-linux.org/faq/
>
> 3) Read the parisc-linux mailing-list archive
> http://www.fr.parisc-linux.org/mailing-lists/
>
> 4) Check the Hardware Database
> http://hwdb.parisc-linux.org/
>
> 5) Check the supported machines list
> http://pateam.esiee.fr/list.html
>
> 6) Read the "HOWTO Report a Kernel Bug"
> http://www.fr.parisc-linux.org/faq/kernelbug-howto.html
>
> 7) Read the "HOWTO Build a PA-RISC/Linux Kernel"
> http://www.fr.parisc-linux.org/kernel/
>
> ----
> That template may grow as some questions will reappear :P
>
>
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://pateam.esiee.fr/
>
>
> On Wed, 12 Mar 2003 00:11:21 +0100
> "trnepal" <trnepal@papuasia.org> wrote:
>
> >
> >
> > hi all,
> >
> > im trying the lifimage 2.4.20-pa18-200301 from the esiee.fr pa team with
> > a 712/60 and a debian linux woody stable as as bootp/tftpd boot server.
> >
> > inetd.conf:
> > bootps          dgram   udp     wait    root    /usr/sbin/bootpd
 bootpd -i -t
> > 120
> > tftp    dgram   udp     wait    root    /usr/sbin/tcpd
/usr/sbin/in.tftpd
> > /tftpboot
> >
> >
> > the bootptab entry:
> >
pa:tc=allhost:ht=ether:bf=lifimage.img:hd=/tftpboot:ha=080009C9A102:ip=10.0.
0.12:to=7200
> >
> >
> > BOOT_ADMIN> boot lan .. and nothing happens :)
> >
> >
> > my syslog:
> > Mar 12 00:04:17 vivaio in.tftpd[786]: connect from 10.0.0.12
> > Mar 12 00:04:17 vivaio tftpd[787]: tftpd: trying to get file:
> > /tftpboot/lifimage.img
> >
> > and tcpdump ..
> > tcpdump: listening on eth0
> > 00:05:39.631149 10.0.0.11.bootps > 10.0.0.12.bootpc:  xid:0x420b596a
> > Y:10.0.0.12 S:10.0.0.11 sname "vivaio" [|bootp] (DF)
> > 00:05:39.970369 10.0.0.12.51998 > 10.0.0.11.tftp:  516 RRQ
> > "/tftpboot/lifimage.img" [tos 0x10]
> > 00:05:40.024953 10.0.0.11.1048 > 10.0.0.12.51998:  udp 516 (DF)
> > 00:05:40.026317 10.0.0.12.51998 > 10.0.0.11.1048:  udp 4 [tos 0x10]
> > 00:05:40.026458 10.0.0.11.1048 > 10.0.0.12.51998:  udp 516 (DF)
> > 00:05:40.027593 10.0.0.12.51998 > 10.0.0.11.1048:  udp 4 [tos 0x10]
> > 00:05:40.027701 10.0.0.11.1048 > 10.0.0.12.51998:  udp 516 (DF)
> > 00:05:40.028837 10.0.0.12.51998 > 10.0.0.11.1048:  udp 4 [tos 0x10]
> > 00:05:40.028940 10.0.0.11.1048 > 10.0.0.12.51998:  udp 516 (DF)
> >
> >
> > sigh :((
> >
> > any clues? thanks in advance.
> > seeyouu byee.,'
> >
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>


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From: Lyonel Vincent <vincentl@ec-lyon.fr>
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Subject: [parisc-linux] enumerating devices from user space
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Hi there,

I'm currently implementing a small tool called lshw (you can find it on
Freshmeat) that enumerates installed devices on a machine and reports them
as a device tree (text, HTML and XML).
For now it knows about DMI, PCI busses, SCSI, IDE and PCMCIA and I would
like to port it to PA-RISC Linux. I already get some very basic info from
/proc/cpuinfo.
Does anyone know how I can access the device tree as seen by the kernel?
(much like HP-UX's ioscan does and what is shown in dmesg)
I've tried digging in /proc without much success... is there a way to get
this information from user space? PPC Linux exposes the device tree in
/proc for example. A mechanism similar to /proc/bus/pci/devices (machine-
parseable text) would be great, too.

thanks for your help,
Lyonel.

PS: I noticed that /proc/iomem lists 00000000-000009ff as "PDC data (Page
Zero)", is there a chance I can find what I need there? (I dd-ed it from
/dev/mem but I can't say if it contains useful data...)

-- 
The software said it requires Windows 2000 or better, so I installed Linux.


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From: "Willian Ricardo" <tecinfo@mococa.com.br>
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Subject: [parisc-linux] PARISC HP 9000 MODEL D 370
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This is a multi-part message in MIME format.

------=_NextPart_000_006E_01C2E880.D0202260
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	charset="iso-8859-1"
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My name is Willian I am from Brazil, I have a personal computer RISC HP =
9000 I Model D 370 =20
I am trying to install DEBIAN 3.0, but I am having some problems in the =
hour of the installation. =20
I inserted the CD in the unit and I pressed the key space, I typed: bo =
8/16/5.2.0 and he began for the cd, he asked something on IPL I answered =
Y and later he asked me something about memory, I placed my memory and =
he/she asked something on vmlinux 32 or 64, I changed for 64, later I =
pressed " b "  =20
he brought me the following answer: =20
 =20
 =20
 Command line for kernel :  ramdisk_size=3D2663046 root =3D /dev/ram =
console=3Dtty0 TERM=3Dvt102 palo_kernel=3D0/vmlinux64
selected kernel: /vmlinux64 from partition 0
selected ramdisk:/ramdisk from partition 0
.
.
.
.
loading ramdisk 2663046 bytes@2fd65000...
Branching to kernel entry point 0x0010000. If this the last
Message you, you may need to switch you console . this is a common =
symptom -- search the FAQ and mailing at parisc-linux.org

what could be? =20
Thank you  =20
Willian

------=_NextPart_000_006E_01C2E880.D0202260
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 5.50.4807.2300" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>My name is Willian I am from Brazil, I =
have a=20
personal computer RISC HP 9000 I Model D 370&nbsp; <BR>I am trying to =
install=20
DEBIAN 3.0, but I am having some problems in the hour of the =
installation.&nbsp;=20
<BR>I inserted the CD in the unit and I pressed the key space, I typed: =
bo=20
8/16/5.2.0 and he began for the cd, he asked something on IPL I answered =
Y and=20
later he asked me something about memory, I placed my memory and he/she =
asked=20
something on vmlinux 32 or 64, I changed for 64, later I pressed " b=20
"&nbsp;&nbsp; <BR>he brought me the following=20
answer:&nbsp;&nbsp;<BR>&nbsp;&nbsp;<BR>&nbsp;&nbsp;<BR>&nbsp;</FONT><FONT=
=20
face=3DArial size=3D2>Command line for kernel :&nbsp; =
ramdisk_size=3D2663046 root =3D=20
/dev/ram console=3Dtty0 TERM=3Dvt102 =
palo_kernel=3D0/vmlinux64</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>selected kernel: /vmlinux64 from =
partition=20
0</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>selected ramdisk:/ramdisk from =
partition=20
0</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>loading ramdisk 2663046 <A=20
href=3D"mailto:bytes@2fd65000">bytes@2fd65000</A>...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Branching to kernel entry point =
0x0010000. If this=20
the last</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Message you, you may need to switch you =
console .=20
this is a common symptom -- search the FAQ and mailing at=20
parisc-linux.org</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>what could be?&nbsp; <BR>Thank =
you&nbsp;&nbsp;=20
<BR>Willian</FONT></DIV></BODY></HTML>

------=_NextPart_000_006E_01C2E880.D0202260--



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On Wed, Mar 12, 2003 at 05:32:36PM +0100, Lyonel Vincent wrote:
> I'm currently implementing a small tool called lshw (you can find it on
> Freshmeat) that enumerates installed devices on a machine and reports them
> as a device tree (text, HTML and XML).

That's cool.

> For now it knows about DMI, PCI busses, SCSI, IDE and PCMCIA and I would
> like to port it to PA-RISC Linux. I already get some very basic info from
> /proc/cpuinfo.
> Does anyone know how I can access the device tree as seen by the kernel?
> (much like HP-UX's ioscan does and what is shown in dmesg)

You can look in /var/log/dmesg.  For example...

Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
2. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions 0x680, 0x0, 0xa,  additional addresses: 0xf2800000 
3. Raven U/L2 Dino PS/2 Port (10) at 0xf2001000 [8/1], versions 0x6, 0x0, 0x96
4. Raven U/L2 Dino RS-232 (10) at 0xf2003000 [8/3], versions 0x6, 0x0, 0x8c
5. Raven U/L2 Core FW-SCSI (4) at 0xf200c000 [8/12], versions 0x3b, 0x0, 0x89
6. Raven U/L2 Core BA (11) at 0xffd00000 [8/16], versions 0x3b, 0x0, 0x81,  additional addresses: 0xffd0c000 0xffc00000 
7. Raven U/L2 Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x3b, 0x0, 0x74,  additional addresses: 0xffd01000 0xffd03000 
8. Raven U/L2 Core Audio (10) at 0xffd04000 [8/16/1], versions 0x3b, 0x4, 0x7b
9. Raven U/L2 Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x3b, 0x0, 0x8c
10. Raven U/L2 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x3b, 0x0, 0x82
11. Raven U/L2 Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x3b, 0x0, 0x8a
12. Raven U/L2 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x3b, 0x0, 0x84
13. Raven U/L2 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x3b, 0x0, 0x84
14. Raven Backplane Wax BA (11) at 0xffe00000 [8/20], versions 0x17, 0x0, 0x8e
15. Raven Backplane Wax HIL (10) at 0xffe01000 [8/20/1], versions 0x17, 0x0, 0x73
16. Raven Backplane RS-232 (10) at 0xffe02000 [8/20/2], versions 0x17, 0x0, 0x8c
17. Raven Backplane Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x17, 0x0, 0x90,  additional addresses: 0xffc88000 0xfc00000b 
18. Gecko GSC Core Graphics (10) at 0xfa000000 [8/24], versions 0x16, 0x0, 0x85,  additional addresses: 0xf0026000 
19. U2-IOA BC GSC+ Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1, 0xc
20. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb
21. U2-IOA BC GSC+ Port (7) at 0xf103f000 [10/63], versions 0x501, 0x1, 0xc
22. Raven U 240 (9000/780/C240) (0) at 0xfffa0000 [32], versions 0x599, 0x0, 0x4
23. Memory (1) at 0xfffb1000 [49], versions 0x6f, 0x0, 0x9

The numbers in [] tell you what the tree looks like.  In this example, we
have 4 top-level devices: #1, #20, #22 & #23.

> I've tried digging in /proc without much success... is there a way to get
> this information from user space? PPC Linux exposes the device tree in
> /proc for example. A mechanism similar to /proc/bus/pci/devices (machine-
> parseable text) would be great, too.

In 2.5, this information's available via sysfs.  I don't think we'll
expose it in /proc.

> PS: I noticed that /proc/iomem lists 00000000-000009ff as "PDC data (Page
> Zero)", is there a chance I can find what I need there? (I dd-ed it from
> /dev/mem but I can't say if it contains useful data...)

No, you need to actually make firmware calls and you can't do that from
user mode.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Lyonel Vincent <vincentl@ec-lyon.fr>
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many thanks for the prompt answer

well... that's exactly the answer I didn't want to ear ;o)
lshw can't reasonably assume that /var/log/dmesg exists and is correct (or
even dmesg) and dig into the trash.

My kernel programming skills are extremely limited (not to say inexistent) but
how difficult would it be to expose this information to user space through
/proc? (AFAICT, we already have PA-RISC specific files like /proc/bus/runway)
A simplistic format like <hwpath>\t<type> <instance> <hversion> <sversion> etc.
would do.
Do you think it'd be useful to make that kind of information available to user-
space? (besides lshw of course ;op) If it's the case I'll try to do my best...

cheers,
lv.

On Wed, Mar 12, 2003 at 04:48:52PM +0000, Matthew Wilcox wrote:
> On Wed, Mar 12, 2003 at 05:32:36PM +0100, Lyonel Vincent wrote:
> > I'm currently implementing a small tool called lshw (you can find it on
> > Freshmeat) that enumerates installed devices on a machine and reports them
> > as a device tree (text, HTML and XML).
> 
> That's cool.
> 
> > For now it knows about DMI, PCI busses, SCSI, IDE and PCMCIA and I would
> > like to port it to PA-RISC Linux. I already get some very basic info from
> > /proc/cpuinfo.
> > Does anyone know how I can access the device tree as seen by the kernel?
> > (much like HP-UX's ioscan does and what is shown in dmesg)
> 
> You can look in /var/log/dmesg.  For example...
> 
> Found devices:
> 1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
> 2. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions 0x680, 0x0, 0xa,  additional addresses: 0xf2800000 
> 3. Raven U/L2 Dino PS/2 Port (10) at 0xf2001000 [8/1], versions 0x6, 0x0, 0x96
> 4. Raven U/L2 Dino RS-232 (10) at 0xf2003000 [8/3], versions 0x6, 0x0, 0x8c
> 5. Raven U/L2 Core FW-SCSI (4) at 0xf200c000 [8/12], versions 0x3b, 0x0, 0x89
> 6. Raven U/L2 Core BA (11) at 0xffd00000 [8/16], versions 0x3b, 0x0, 0x81,  additional addresses: 0xffd0c000 0xffc00000 
> 7. Raven U/L2 Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x3b, 0x0, 0x74,  additional addresses: 0xffd01000 0xffd03000 
> 8. Raven U/L2 Core Audio (10) at 0xffd04000 [8/16/1], versions 0x3b, 0x4, 0x7b
> 9. Raven U/L2 Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x3b, 0x0, 0x8c
> 10. Raven U/L2 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x3b, 0x0, 0x82
> 11. Raven U/L2 Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x3b, 0x0, 0x8a
> 12. Raven U/L2 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x3b, 0x0, 0x84
> 13. Raven U/L2 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x3b, 0x0, 0x84
> 14. Raven Backplane Wax BA (11) at 0xffe00000 [8/20], versions 0x17, 0x0, 0x8e
> 15. Raven Backplane Wax HIL (10) at 0xffe01000 [8/20/1], versions 0x17, 0x0, 0x73
> 16. Raven Backplane RS-232 (10) at 0xffe02000 [8/20/2], versions 0x17, 0x0, 0x8c
> 17. Raven Backplane Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x17, 0x0, 0x90,  additional addresses: 0xffc88000 0xfc00000b 
> 18. Gecko GSC Core Graphics (10) at 0xfa000000 [8/24], versions 0x16, 0x0, 0x85,  additional addresses: 0xf0026000 
> 19. U2-IOA BC GSC+ Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1, 0xc
> 20. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb
> 21. U2-IOA BC GSC+ Port (7) at 0xf103f000 [10/63], versions 0x501, 0x1, 0xc
> 22. Raven U 240 (9000/780/C240) (0) at 0xfffa0000 [32], versions 0x599, 0x0, 0x4
> 23. Memory (1) at 0xfffb1000 [49], versions 0x6f, 0x0, 0x9
> 
> The numbers in [] tell you what the tree looks like.  In this example, we
> have 4 top-level devices: #1, #20, #22 & #23.
> 
> > I've tried digging in /proc without much success... is there a way to get
> > this information from user space? PPC Linux exposes the device tree in
> > /proc for example. A mechanism similar to /proc/bus/pci/devices (machine-
> > parseable text) would be great, too.
> 
> In 2.5, this information's available via sysfs.  I don't think we'll
> expose it in /proc.
> 
> > PS: I noticed that /proc/iomem lists 00000000-000009ff as "PDC data (Page
> > Zero)", is there a chance I can find what I need there? (I dd-ed it from
> > /dev/mem but I can't say if it contains useful data...)
> 
> No, you need to actually make firmware calls and you can't do that from
> user mode.
> 
> -- 
> "It's not Hollywood.  War is real, war is primarily not about defeat or
> victory, it is about death.  I've seen thousands and thousands of dead bodies.
> Do you think I want to have an academic debate on this subject?" -- Robert Fisk

-- 
The software said it requires Windows 2000 or better, so I installed Linux.


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Subject: RE: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
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Hi Randolph,

>-- Original Message --
>From: Randolph Chung <tausq@debian.org>
>To: Matthias Klose <doko@cs.tu-berlin.de>
>Cc: debian-hppa@lists.debian.org, debian-gcc@lists.debian.org,
>	parisc-linux@lists.parisc-linux.org
>Reply-To: Randolph Chung <tausq@debian.org>
>Subject: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
>Date: Sat, 1 Mar 2003 20:59:36 -0800
>
>
>In reference to a message from Matthias Klose, dated Mar 01:
>> Matthias Klose writes:
>> > AFAIK the transition from 3.2 to 3.3 requires recompilation of C++
>> > code due to the changed exception handling (now DWARF2 based). As
>> > libstdc++ in 3.2 and 3.2 have the same soname, how to handle it?
>> > Currently 3.2 is in unstable only. Would you want to start the
>> > recompilation before 3.2 based binaries go to testing?
>> > 
>> > The packaging for 3.3 can be found in the Debian CVS.
>> 
>> You can get test packages from
>> 	http://ftp-master.debian.org/~doko/gcc-3.3/
>
>well.... this is not looking good. after installing these in a freshly
>built sarge chroot, all c++ programs stop working (well, i've only tried
>two -- apt and fakeroot)
>
>(btw, small packaging detail, but the libstdc++*-dev package above
>cannot be installed cleanly because it overwrites things in the current
>3.2 package)
>

Sorry in advance if I am annoying.

I am looking to rebuild gcc-3.3 64bits to rebuild the last kernel 2.4 to
conitnue my investigation about smp(64bits) [which failled to boot on a N4000
when compile d with gcc-3.2 get from unofficial-debs].

To do I download the very last src from Matthias Klose who advise me to my
question:
>> Do you have some idea how to rebuild it from dpkg sources?
>> (I would like avoid the toolchain procedure if possible)

>look at debian/rules.defs for the support to build a cross compiler.
>It was submitted some weeks ago. I didn't check this myself yet.

I have a look but it is not clear to me; can you help me in more details?
(ps: I already install the last Matthias gcc-3.3 dpkg 32bits;
according to your <http://lists.parisc-linux.org/pipermail/parisc-linux/2003-February/019170.html>
it is a prerequisite)

Thanks in advance,
    Joel


---------------------------------
Vous surfez avec une ligne classique ?
Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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> I am looking to rebuild gcc-3.3 64bits to rebuild the last kernel 2.4 to
> conitnue my investigation about smp(64bits) [which failled to boot on a N4000
> when compile d with gcc-3.2 get from unofficial-debs].

If you are working on 64-bit, I would advise staying with 3.0.4 for
now.... no one has tested 3.3 hppa64-linux-gcc at all, so it will just
be introducing more unknowns into the problem.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>-- Original Message --
>Date: Wed, 12 Mar 2003 09:35:05 -0800
>From: Randolph Chung <tausq@debian.org>
>To: Joel Soete <jsoe0708@tiscali.be>
>Cc: Matthias Klose <doko@cs.tu-berlin.de>,
>	debian-hppa@lists.debian.org, debian-gcc@lists.debian.org,
>	parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
>Reply-To: Randolph Chung <tausq@debian.org>
>
>
>> I am looking to rebuild gcc-3.3 64bits to rebuild the last kernel 2.4
to
>> conitnue my investigation about smp(64bits) [which failled to boot on
a
>N4000
>> when compile d with gcc-3.2 get from unofficial-debs].
>
>If you are working on 64-bit, I would advise staying with 3.0.4 for
>now.... no one has tested 3.3 hppa64-linux-gcc at all, so it will just
>be introducing more unknowns into the problem.
>
Ok I am gonna try to rebuild it with gcc-3.0.

Thanks for advise,
    Joel

---------------------------------
Vous surfez avec une ligne classique ?
Faites des economies avec Tiscali Complete
... Plus d'info sur http://complete.tiscali.be




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There's something wrong with you.

Rule nb 1: NEVER answer in private to a mailing-list message.

Rule nb 2: NEVER claim there's a bug for software that works perfectly=20=

well for thousands of peoples (unless you run unstable, but then ALWAYS=20=

blame yourself).

Rule nb 3: ALWAYS suspect a problem with the hardware when something=20
goes wrong. (moreover if the hardware seems to have already failed.=20
What's that scsi error you're talking about ?)

Rule nb 4: ALWAYS post output and give details when reporting a bug.=20
How could I guess what's wrong with your box if I can't have a look at=20=

dmesg for instance? When does your machine hangs? Are the boot=20
parameters correct? Haven't you forgotten the "root=3D" argument? What=20=

are the kernel arguments you used? How the hell am I supposed to guess=20=

that kind of info?

and what's that superblock/filesystem stuff you're talking about, how=20
did you get to that step?
network images only contains a kernel, they're not supposed to launch=20
any installer...

let me suggest you to check items 2) and 6) from the template message=20
as well.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

Le mercredi, 12 mar 2003, =E0 17:20 Europe/Paris, trnepal a =E9crit :

> On Wednesday 12 March 2003 09:52, you wrote:
>
>> In your case 1) should be enough.
>>
>> -----
>> This is a template message.
>>
>> 1) Read the PA-RISC/Linux Boot HOWTO
>> http://pateam.esiee.fr/doc.html
>
> okk. but i read it _before posting :) ..
>
> ok. i managed it .. it was tftpd problem.
> something like a bug. the kernel was successfully
> transferred only from an incorrect location
> like /tftboot//image.
>
> now the machines hangs writing superblock and
> filesystem accounting :((
>
> i choosed a netwoork boot cause of this hang
> with an external cdrom (and some dmesg scsi error on
> the bus :) .. but now if verified a clean dmesg,
> but the machines hangs anyway :((
>
> any clues now? thankyou verymuch.
>
> see youu byee.'
>
>
>




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Hi,

I think the most intesting thing is the name of the system, which is (untested!) in 
/proc/cpuinfo (should give you "Raven U 240 (9000/780/C240)").

The rest is mostly and often standard serial, parallel, SCSI, pci (pci-utils!), and
some strange GSC cards (which often give you some of the above devices).

Regards,
Helge

On Wednesday 12 March 2003 18:30, Lyonel Vincent wrote:
> many thanks for the prompt answer
>
> well... that's exactly the answer I didn't want to ear ;o)
> lshw can't reasonably assume that /var/log/dmesg exists and is correct (or
> even dmesg) and dig into the trash.
>
> My kernel programming skills are extremely limited (not to say inexistent)
> but how difficult would it be to expose this information to user space
> through /proc? (AFAICT, we already have PA-RISC specific files like
> /proc/bus/runway) A simplistic format like <hwpath>\t<type> <instance>
> <hversion> <sversion> etc. would do.
> Do you think it'd be useful to make that kind of information available to
> user- space? (besides lshw of course ;op) If it's the case I'll try to do
> my best...
>
> cheers,
> lv.
>
> On Wed, Mar 12, 2003 at 04:48:52PM +0000, Matthew Wilcox wrote:
> > On Wed, Mar 12, 2003 at 05:32:36PM +0100, Lyonel Vincent wrote:
> > > I'm currently implementing a small tool called lshw (you can find it on
> > > Freshmeat) that enumerates installed devices on a machine and reports
> > > them as a device tree (text, HTML and XML).
> >
> > That's cool.
> >
> > > For now it knows about DMI, PCI busses, SCSI, IDE and PCMCIA and I
> > > would like to port it to PA-RISC Linux. I already get some very basic
> > > info from /proc/cpuinfo.
> > > Does anyone know how I can access the device tree as seen by the
> > > kernel? (much like HP-UX's ioscan does and what is shown in dmesg)
> >
> > You can look in /var/log/dmesg.  For example...
> >
> > Found devices:
> > 1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
> > 2. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions 0x680, 0x0, 0xa, 
> > additional addresses: 0xf2800000 3. Raven U/L2 Dino PS/2 Port (10) at
> > 0xf2001000 [8/1], versions 0x6, 0x0, 0x96 4. Raven U/L2 Dino RS-232 (10)
> > at 0xf2003000 [8/3], versions 0x6, 0x0, 0x8c 5. Raven U/L2 Core FW-SCSI
> > (4) at 0xf200c000 [8/12], versions 0x3b, 0x0, 0x89 6. Raven U/L2 Core BA
> > (11) at 0xffd00000 [8/16], versions 0x3b, 0x0, 0x81,  additional
> > addresses: 0xffd0c000 0xffc00000 7. Raven U/L2 Core Centronics (10) at
> > 0xffd02000 [8/16/0], versions 0x3b, 0x0, 0x74,  additional addresses:
> > 0xffd01000 0xffd03000 8. Raven U/L2 Core Audio (10) at 0xffd04000
> > [8/16/1], versions 0x3b, 0x4, 0x7b 9. Raven U/L2 Core RS-232 (10) at
> > 0xffd05000 [8/16/4], versions 0x3b, 0x0, 0x8c 10. Raven U/L2 Core SCSI
> > (10) at 0xffd06000 [8/16/5], versions 0x3b, 0x0, 0x82 11. Raven U/L2 Core
> > LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x3b, 0x0, 0x8a 12.
> > Raven U/L2 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x3b,
> > 0x0, 0x84 13. Raven U/L2 Core PS/2 Port (10) at 0xffd08100 [8/16/8],
> > versions 0x3b, 0x0, 0x84 14. Raven Backplane Wax BA (11) at 0xffe00000
> > [8/20], versions 0x17, 0x0, 0x8e 15. Raven Backplane Wax HIL (10) at
> > 0xffe01000 [8/20/1], versions 0x17, 0x0, 0x73 16. Raven Backplane RS-232
> > (10) at 0xffe02000 [8/20/2], versions 0x17, 0x0, 0x8c 17. Raven Backplane
> > Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x17, 0x0, 0x90, 
> > additional addresses: 0xffc88000 0xfc00000b 18. Gecko GSC Core Graphics
> > (10) at 0xfa000000 [8/24], versions 0x16, 0x0, 0x85,  additional
> > addresses: 0xf0026000 19. U2-IOA BC GSC+ Port (7) at 0xf203f000 [8/63],
> > versions 0x501, 0x1, 0xc 20. U2-IOA BC Runway Port (12) at 0xfff8a000
> > [10], versions 0x580, 0xf, 0xb 21. U2-IOA BC GSC+ Port (7) at 0xf103f000
> > [10/63], versions 0x501, 0x1, 0xc 22. Raven U 240 (9000/780/C240) (0) at
> > 0xfffa0000 [32], versions 0x599, 0x0, 0x4 23. Memory (1) at 0xfffb1000
> > [49], versions 0x6f, 0x0, 0x9
> >
> > The numbers in [] tell you what the tree looks like.  In this example, we
> > have 4 top-level devices: #1, #20, #22 & #23.
> >
> > > I've tried digging in /proc without much success... is there a way to
> > > get this information from user space? PPC Linux exposes the device tree
> > > in /proc for example. A mechanism similar to /proc/bus/pci/devices
> > > (machine- parseable text) would be great, too.
> >
> > In 2.5, this information's available via sysfs.  I don't think we'll
> > expose it in /proc.
> >
> > > PS: I noticed that /proc/iomem lists 00000000-000009ff as "PDC data
> > > (Page Zero)", is there a chance I can find what I need there? (I dd-ed
> > > it from /dev/mem but I can't say if it contains useful data...)
> >
> > No, you need to actually make firmware calls and you can't do that from
> > user mode.
> >
> > --
> > "It's not Hollywood.  War is real, war is primarily not about defeat or
> > victory, it is about death.  I've seen thousands and thousands of dead
> > bodies. Do you think I want to have an academic debate on this subject?"
> > -- Robert Fisk



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Hello Helge,

The goal is precisely that: *accurately* report installed hardware
(including the "standard" stuff) and how it's connected in a *unified*
way, without having to use dozens of inconsistent tools (pci-utils,
lsusb, sg-utils, cat, grep, black magic, etc.).
A good example of this being HP-UX's ioscan. DMI-aware PCs also have a
similar feature.

SCSI, PCI etc. are already enumerated platform-independently (without
needing pci-utils nor sg-utils, only pci.ids) but they currently seem to
come "out of the void" as the underlying hardware (LASI, various GSC
bridges, etc) is not enumerated.
Concerning the obvious /proc/cpuinfo, its info is reported too (on
PA-RISC, x86, IA-64, PowerPC and Alpha).

In short, that's why I'd like to access ioscan-like data under PA-RISC
Linux from user space.

cheers,
lv.

On Wed, 12 Mar 2003 21:50:50 +0100
Helge Deller <deller@gmx.de> wrote:

> Hi,
> 
> I think the most intesting thing is the name of the system, which is
> (untested!) in /proc/cpuinfo (should give you "Raven U 240
> (9000/780/C240)").
> 
> The rest is mostly and often standard serial, parallel, SCSI, pci
> (pci-utils!), and some strange GSC cards (which often give you some of
> the above devices).
> 
> Regards,
> Helge
> 
> On Wednesday 12 March 2003 18:30, Lyonel Vincent wrote:
> > many thanks for the prompt answer
> >
> > well... that's exactly the answer I didn't want to ear ;o)
> > lshw can't reasonably assume that /var/log/dmesg exists and is
> > correct (or even dmesg) and dig into the trash.
> >
> > My kernel programming skills are extremely limited (not to say
> > inexistent) but how difficult would it be to expose this information
> > to user space through /proc? (AFAICT, we already have PA-RISC
> > specific files like/proc/bus/runway) A simplistic format like
> > <hwpath>\t<type> <instance><hversion> <sversion> etc. would do.
> > Do you think it'd be useful to make that kind of information
> > available to user- space? (besides lshw of course ;op) If it's the
> > case I'll try to do my best...
> >
> > cheers,
> > lv.
> >
> > On Wed, Mar 12, 2003 at 04:48:52PM +0000, Matthew Wilcox wrote:
> > > On Wed, Mar 12, 2003 at 05:32:36PM +0100, Lyonel Vincent wrote:
> > > > I'm currently implementing a small tool called lshw (you can
> > > > find it on Freshmeat) that enumerates installed devices on a
> > > > machine and reports them as a device tree (text, HTML and XML).
> > >
> > > That's cool.
> > >
> > > > For now it knows about DMI, PCI busses, SCSI, IDE and PCMCIA and
> > > > I would like to port it to PA-RISC Linux. I already get some
> > > > very basic info from /proc/cpuinfo.
> > > > Does anyone know how I can access the device tree as seen by the
> > > > kernel? (much like HP-UX's ioscan does and what is shown in
> > > > dmesg)
> > >
> > > You can look in /var/log/dmesg.  For example...
> > >
> > > Found devices:
> > > 1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580,
> > > 0xf, 0xb 2. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions
> > > 0x680, 0x0, 0xa, additional addresses: 0xf2800000 3. Raven U/L2
> > > Dino PS/2 Port (10) at 0xf2001000 [8/1], versions 0x6, 0x0, 0x96
> > > 4. Raven U/L2 Dino RS-232 (10) at 0xf2003000 [8/3], versions 0x6,
> > > 0x0, 0x8c 5. Raven U/L2 Core FW-SCSI(4) at 0xf200c000 [8/12],
> > > versions 0x3b, 0x0, 0x89 6. Raven U/L2 Core BA(11) at 0xffd00000
> > > [8/16], versions 0x3b, 0x0, 0x81,  additional addresses:
> > > 0xffd0c000 0xffc00000 7. Raven U/L2 Core Centronics (10) at
> > > 0xffd02000 [8/16/0], versions 0x3b, 0x0, 0x74,  additional
> > > addresses: 0xffd01000 0xffd03000 8. Raven U/L2 Core Audio (10) at
> > > 0xffd04000[8/16/1], versions 0x3b, 0x4, 0x7b 9. Raven U/L2 Core
> > > RS-232 (10) at 0xffd05000 [8/16/4], versions 0x3b, 0x0, 0x8c 10.
> > > Raven U/L2 Core SCSI(10) at 0xffd06000 [8/16/5], versions 0x3b,
> > > 0x0, 0x82 11. Raven U/L2 Core LAN (802.3) (10) at 0xffd07000
> > > [8/16/6], versions 0x3b, 0x0, 0x8a 12. Raven U/L2 Core PS/2 Port
> > > (10) at 0xffd08000 [8/16/7], versions 0x3b, 0x0, 0x84 13. Raven
> > > U/L2 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x3b,
> > > 0x0, 0x84 14. Raven Backplane Wax BA (11) at 0xffe00000[8/20],
> > > versions 0x17, 0x0, 0x8e 15. Raven Backplane Wax HIL (10) at
> > > 0xffe01000 [8/20/1], versions 0x17, 0x0, 0x73 16. Raven Backplane
> > > RS-232(10) at 0xffe02000 [8/20/2], versions 0x17, 0x0, 0x8c 17.
> > > Raven Backplane Wax EISA BA (11) at 0xfc000000 [8/20/5], versions
> > > 0x17, 0x0, 0x90, additional addresses: 0xffc88000 0xfc00000b 18.
> > > Gecko GSC Core Graphics(10) at 0xfa000000 [8/24], versions 0x16,
> > > 0x0, 0x85,  additional addresses: 0xf0026000 19. U2-IOA BC GSC+
> > > Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1, 0xc 20. U2-IOA
> > > BC Runway Port (12) at 0xfff8a000[10], versions 0x580, 0xf, 0xb
> > > 21. U2-IOA BC GSC+ Port (7) at 0xf103f000[10/63], versions 0x501,
> > > 0x1, 0xc 22. Raven U 240 (9000/780/C240) (0) at 0xfffa0000 [32],
> > > versions 0x599, 0x0, 0x4 23. Memory (1) at 0xfffb1000[49],
> > > versions 0x6f, 0x0, 0x9
> > >
> > > The numbers in [] tell you what the tree looks like.  In this
> > > example, we have 4 top-level devices: #1, #20, #22 & #23.
> > >
> > > > I've tried digging in /proc without much success... is there a
> > > > way to get this information from user space? PPC Linux exposes
> > > > the device tree in /proc for example. A mechanism similar to
> > > > /proc/bus/pci/devices(machine- parseable text) would be great,
> > > > too.
> > >
> > > In 2.5, this information's available via sysfs.  I don't think
> > > we'll expose it in /proc.
> > >
> > > > PS: I noticed that /proc/iomem lists 00000000-000009ff as "PDC
> > > > data(Page Zero)", is there a chance I can find what I need
> > > > there? (I dd-ed it from /dev/mem but I can't say if it contains
> > > > useful data...)
> > >
> > > No, you need to actually make firmware calls and you can't do that
> > > from user mode.
> > >
> > > --
> > > "It's not Hollywood.  War is real, war is primarily not about
> > > defeat or victory, it is about death.  I've seen thousands and
> > > thousands of dead bodies. Do you think I want to have an academic
> > > debate on this subject?"-- Robert Fisk
> 


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------=_NextPart_000_32B4_01C2E942.C276BCB0--


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Cc: Helge Deller <deller@gmx.de>, parisc-linux@lists.parisc-linux.org
To: Lyonel Vincent <vincentl@ec-lyon.fr>
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On Wed, Mar 12, 2003 at 11:36:51PM +0100, Lyonel Vincent wrote:
> SCSI, PCI etc. are already enumerated platform-independently (without
> needing pci-utils nor sg-utils, only pci.ids) but they currently seem to
> come "out of the void" as the underlying hardware (LASI, various GSC
> bridges, etc) is not enumerated.

Right -- and you'll get this in 2.5 from sysfs.  Given this, I'm reluctant
to introduce a new file in /proc.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: [parisc-linux] FYA - C3000 adventure
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Hi folks,

This is a reminder to check firmware rev's if you have problems
after changing HW configuration...just wanted to share my little
adventure today with C3000.

I added a Tigon3 (broadcom 570x) Gigabit Ethernet card and the
tg3 v1.5 driver wouldn't talk to it:
...
tg3.c:v1.5 (Feb 18, 2003)
tg3: Cannot find proper PCI device base address, aborting.
...
# lspci -vn -s 03:03.0
03:03.0 Class 0200: 14e4:16a7 (rev 02)
	Subsystem: 14e4:0009
	Flags: 66Mhz, medium devsel, IRQ 160
	Memory at <ignored> (64-bit, non-prefetchable) [size=f6010000]
	Capabilities: [40] PCI-X non-bridge device.
	Capabilities: [48] Power Management version 2
	Capabilities: [50] Vital Product Data
	Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable

Darn it. The same card worked fine in B180:

00:02.0 Class 0200: 14e4:16a7 (rev 02)
	Subsystem: 14e4:0009
	Flags: bus master, 66Mhz, medium devsel, latency 248, IRQ 98
	Memory at f0ff0000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: [40] PCI-X non-bridge device.
	Capabilities: [48] Power Management version 2
	Capabilities: [50] Vital Product Data
	Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable

After powering off all 20 SCSI drives (damn SCSI subsystem is *way*
too verbose), I was finally able to collect a full boot log via dmesg:
...
lba version TR2.0 (0x1) found at 0xfed38000
Can't support LBA older than TR2.1 - continuing under adversity.
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
PCI: Unable to handle 64-bit address for device 03:03.0
...

(The "Ignoring ELMMIO" is another issue that is related to me being,
uhm, "efficient" ;^) ...in a nutshell it's related to dodging
issues with overlapped MMIO ranges.)

The "Unable to handle 64-bit address" was the clue I needed.
(LESSON: read the *whole* boot log!)

It basically means the upper part of a 64-bit BAR is non zero
and that's not OK for a 32-bit OS (well...it's a physical address).
And that is in fact the case on the C3000:
grundler <511>cat /proc/bus/pci/03/03.0 | od -t x1 -Ax
000000 e4 14 a7 16 52 01 b0 02 02 00 00 02 10 f8 00 00
000010 04 00 00 f6 00 00 40 00 00 00 00 00 00 00 00 00
000020 00 00 00 00 00 00 00 00 00 00 00 00 e4 14 09 00
000030 00 00 00 00 40 00 00 00 00 00 00 00 00 01 40 00

bytes 14-17 should all be zero.
0xf6000004 is the lower half of a 64-bit BAR.

The good news is PF_CBCJ0050 (v5.0 firmware for BCJ-class) says
it fixed exactly this problem:
            - Clears upper 32 bit PCI BAR of a PCI card that has
	      64-bit BAR registers

I currently have v4.6 firmware on my C3000.
I'll be updating my firmware tomorrow. :^)

grant


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Being as I just got done with a class from HP Education on Linux, this very issue was brought up by all of us HP-UX guys.  We love our IOSCAN.  The instructor told us that someone within HP actually wrote an "ioscan" for Red Hat.  I'm thinking that getting a copy of that source code would be a good place to start.  I'm going to do a search for the guy tomorrow or get his name from our instructor to see if I can get a hold of his code.
derek
 Lyonel Vincent <vincentl@ec-lyon.fr> wrote:Hello Helge,

The goal is precisely that: *accurately* report installed hardware
(including the "standard" stuff) and how it's connected in a *unified*
way, without having to use dozens of inconsistent tools (pci-utils,
lsusb, sg-utils, cat, grep, black magic, etc.).
A good example of this being HP-UX's ioscan. DMI-aware PCs also have a
similar feature.

SCSI, PCI etc. are already enumerated platform-independently (without
needing pci-utils nor sg-utils, only pci.ids) but they currently seem to
come "out of the void" as the underlying hardware (LASI, various GSC
bridges, etc) is not enumerated.
Concerning the obvious /proc/cpuinfo, its info is reported too (on
PA-RISC, x86, IA-64, PowerPC and Alpha).

In short, that's why I'd like to access ioscan-like data under PA-RISC
Linux from user space.

cheers,
lv.

On Wed, 12 Mar 2003 21:50:50 +0100
Helge Deller wrote:

> Hi,
> 
> I think the most intesting thing is the name of the system, which is
> (untested!) in /proc/cpuinfo (should give you "Raven U 240
> (9000/780/C240)").
> 
> The rest is mostly and often standard serial, parallel, SCSI, pci
> (pci-utils!), and some strange GSC cards (which often give you some of
> the above devices).
> 
> Regards,
> Helge
> 
> On Wednesday 12 March 2003 18:30, Lyonel Vincent wrote:
> > many thanks for the prompt answer
> >
> > well... that's exactly the answer I didn't want to ear ;o)
> > lshw can't reasonably assume that /var/log/dmesg exists and is
> > correct (or even dmesg) and dig into the trash.
> >
> > My kernel programming skills are extremely limited (not to say
> > inexistent) but how difficult would it be to expose this information
> > to user space through /proc? (AFAICT, we already have PA-RISC
> > specific files like/proc/bus/runway) A simplistic format like
> > \t etc. would do.
> > Do you think it'd be useful to make that kind of information
> > available to user- space? (besides lshw of course ;op) If it's the
> > case I'll try to do my best...
> >
> > cheers,
> > lv.
> >
> > On Wed, Mar 12, 2003 at 04:48:52PM +0000, Matthew Wilcox wrote:
> > > On Wed, Mar 12, 2003 at 05:32:36PM +0100, Lyonel Vincent wrote:
> > > > I'm currently implementing a small tool called lshw (you can
> > > > find it on Freshmeat) that enumerates installed devices on a
> > > > machine and reports them as a device tree (text, HTML and XML).
> > >
> > > That's cool.
> > >
> > > > For now it knows about DMI, PCI busses, SCSI, IDE and PCMCIA and
> > > > I would like to port it to PA-RISC Linux. I already get some
> > > > very basic info from /proc/cpuinfo.
> > > > Does anyone know how I can access the device tree as seen by the
> > > > kernel? (much like HP-UX's ioscan does and what is shown in
> > > > dmesg)
> > >
> > > You can look in /var/log/dmesg. For example...
> > >
> > > Found devices:
> > > 1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580,
> > > 0xf, 0xb 2. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions
> > > 0x680, 0x0, 0xa, additional addresses: 0xf2800000 3. Raven U/L2
> > > Dino PS/2 Port (10) at 0xf2001000 [8/1], versions 0x6, 0x0, 0x96
> > > 4. Raven U/L2 Dino RS-232 (10) at 0xf2003000 [8/3], versions 0x6,
> > > 0x0, 0x8c 5. Raven U/L2 Core FW-SCSI(4) at 0xf200c000 [8/12],
> > > versions 0x3b, 0x0, 0x89 6. Raven U/L2 Core BA(11) at 0xffd00000
> > > [8/16], versions 0x3b, 0x0, 0x81, additional addresses:
> > > 0xffd0c000 0xffc00000 7. Raven U/L2 Core Centronics (10) at
> > > 0xffd02000 [8/16/0], versions 0x3b, 0x0, 0x74, additional
> > > addresses: 0xffd01000 0xffd03000 8. Raven U/L2 Core Audio (10) at
> > > 0xffd04000[8/16/1], versions 0x3b, 0x4, 0x7b 9. Raven U/L2 Core
> > > RS-232 (10) at 0xffd05000 [8/16/4], versions 0x3b, 0x0, 0x8c 10.
> > > Raven U/L2 Core SCSI(10) at 0xffd06000 [8/16/5], versions 0x3b,
> > > 0x0, 0x82 11. Raven U/L2 Core LAN (802.3) (10) at 0xffd07000
> > > [8/16/6], versions 0x3b, 0x0, 0x8a 12. Raven U/L2 Core PS/2 Port
> > > (10) at 0xffd08000 [8/16/7], versions 0x3b, 0x0, 0x84 13. Raven
> > > U/L2 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x3b,
> > > 0x0, 0x84 14. Raven Backplane Wax BA (11) at 0xffe00000[8/20],
> > > versions 0x17, 0x0, 0x8e 15. Raven Backplane Wax HIL (10) at
> > > 0xffe01000 [8/20/1], versions 0x17, 0x0, 0x73 16. Raven Backplane
> > > RS-232(10) at 0xffe02000 [8/20/2], versions 0x17, 0x0, 0x8c 17.
> > > Raven Backplane Wax EISA BA (11) at 0xfc000000 [8/20/5], versions
> > > 0x17, 0x0, 0x90, additional addresses: 0xffc88000 0xfc00000b 18.
> > > Gecko GSC Core Graphics(10) at 0xfa000000 [8/24], versions 0x16,
> > > 0x0, 0x85, additional addresses: 0xf0026000 19. U2-IOA BC GSC+
> > > Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1, 0xc 20. U2-IOA
> > > BC Runway Port (12) at 0xfff8a000[10], versions 0x580, 0xf, 0xb
> > > 21. U2-IOA BC GSC+ Port (7) at 0xf103f000[10/63], versions 0x501,
> > > 0x1, 0xc 22. Raven U 240 (9000/780/C240) (0) at 0xfffa0000 [32],
> > > versions 0x599, 0x0, 0x4 23. Memory (1) at 0xfffb1000[49],
> > > versions 0x6f, 0x0, 0x9
> > >
> > > The numbers in [] tell you what the tree looks like. In this
> > > example, we have 4 top-level devices: #1, #20, #22 & #23.
> > >
> > > > I've tried digging in /proc without much success... is there a
> > > > way to get this information from user space? PPC Linux exposes
> > > > the device tree in /proc for example. A mechanism similar to
> > > > /proc/bus/pci/devices(machine- parseable text) would be great,
> > > > too.
> > >
> > > In 2.5, this information's available via sysfs. I don't think
> > > we'll expose it in /proc.
> > >
> > > > PS: I noticed that /proc/iomem lists 00000000-000009ff as "PDC
> > > > data(Page Zero)", is there a chance I can find what I need
> > > > there? (I dd-ed it from /dev/mem but I can't say if it contains
> > > > useful data...)
> > >
> > > No, you need to actually make firmware calls and you can't do that
> > > from user mode.
> > >
> > > --
> > > "It's not Hollywood. War is real, war is primarily not about
> > > defeat or victory, it is about death. I've seen thousands and
> > > thousands of dead bodies. Do you think I want to have an academic
> > > debate on this subject?"-- Robert Fisk
> 
_______________________________________________
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http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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<P>Being as I just got done with a class from HP Education on Linux, this very issue was brought up by all of us HP-UX guys.&nbsp; We love our IOSCAN.&nbsp; The instructor told us that someone within HP actually wrote an "ioscan" for Red Hat.&nbsp; I'm thinking that getting a copy of that source code would be a good place to start.&nbsp; I'm going to do a search for the guy tomorrow or get his name from our instructor to see if I can get a hold of his code.
<P>derek
<P>&nbsp;<B><I>Lyonel Vincent &lt;vincentl@ec-lyon.fr&gt;</I></B> wrote:
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">Hello Helge,<BR><BR>The goal is precisely that: *accurately* report installed hardware<BR>(including the "standard" stuff) and how it's connected in a *unified*<BR>way, without having to use dozens of inconsistent tools (pci-utils,<BR>lsusb, sg-utils, cat, grep, black magic, etc.).<BR>A good example of this being HP-UX's ioscan. DMI-aware PCs also have a<BR>similar feature.<BR><BR>SCSI, PCI etc. are already enumerated platform-independently (without<BR>needing pci-utils nor sg-utils, only pci.ids) but they currently seem to<BR>come "out of the void" as the underlying hardware (LASI, various GSC<BR>bridges, etc) is not enumerated.<BR>Concerning the obvious /proc/cpuinfo, its info is reported too (on<BR>P
 A-RISC, x86, IA-64, PowerPC and Alpha).<BR><BR>In short, that's why I'd like to access ioscan-like data under PA-RISC<BR>Linux from user space.<BR><BR>cheers,<BR>lv.<BR><BR>On Wed, 12 Mar 2003 21:50:50 +0100<BR>Helge Deller <DELLER@GMX.DE>wrote:<BR><BR>&gt; Hi,<BR>&gt; <BR>&gt; I think the most intesting thing is the name of the system, which is<BR>&gt; (untested!) in /proc/cpuinfo (should give you "Raven U 240<BR>&gt; (9000/780/C240)").<BR>&gt; <BR>&gt; The rest is mostly and often standard serial, parallel, SCSI, pci<BR>&gt; (pci-utils!), and some strange GSC cards (which often give you some of<BR>&gt; the above devices).<BR>&gt; <BR>&gt; Regards,<BR>&gt; Helge<BR>&gt; <BR>&gt; On Wednesday 12 March 2003 18:30, Lyonel Vincent wrote:<BR>&gt; &gt; many thanks for the prompt answer<BR>&gt
 ; &gt;<BR>&gt; &gt; well... that's exactly the answer I didn't want to ear ;o)<BR>&gt; &gt; lshw can't reasonably assume that /var/log/dmesg exists and is<BR>&gt; &gt; correct (or even dmesg) and dig into the trash.<BR>&gt; &gt;<BR>&gt; &gt; My kernel programming skills are extremely limited (not to say<BR>&gt; &gt; inexistent) but how difficult would it be to expose this information<BR>&gt; &gt; to user space through /proc? (AFAICT, we already have PA-RISC<BR>&gt; &gt; specific files like/proc/bus/runway) A simplistic format like<BR>&gt; &gt; <HWPATH>\t<TYPE> <INSTANCE><HVERSION><SVERSION>etc. would do.<BR>&gt; &gt; Do you think it'd be useful to make that kind of information<BR>&gt; &gt; available to user- space? (besides lshw of course ;op) If it's the<BR>&gt; &gt; case I'll try to do
  my best...<BR>&gt; &gt;<BR>&gt; &gt; cheers,<BR>&gt; &gt; lv.<BR>&gt; &gt;<BR>&gt; &gt; On Wed, Mar 12, 2003 at 04:48:52PM +0000, Matthew Wilcox wrote:<BR>&gt; &gt; &gt; On Wed, Mar 12, 2003 at 05:32:36PM +0100, Lyonel Vincent wrote:<BR>&gt; &gt; &gt; &gt; I'm currently implementing a small tool called lshw (you can<BR>&gt; &gt; &gt; &gt; find it on Freshmeat) that enumerates installed devices on a<BR>&gt; &gt; &gt; &gt; machine and reports them as a device tree (text, HTML and XML).<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; That's cool.<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; &gt; For now it knows about DMI, PCI busses, SCSI, IDE and PCMCIA and<BR>&gt; &gt; &gt; &gt; I would like to port it to PA-RISC Linux. I already get some<BR>&gt; &gt; &gt; &gt; very basic info from /proc/cpuinfo.<BR>&gt; &g
 t; &gt; &gt; Does anyone know how I can access the device tree as seen by the<BR>&gt; &gt; &gt; &gt; kernel? (much like HP-UX's ioscan does and what is shown in<BR>&gt; &gt; &gt; &gt; dmesg)<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; You can look in /var/log/dmesg. For example...<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; Found devices:<BR>&gt; &gt; &gt; 1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580,<BR>&gt; &gt; &gt; 0xf, 0xb 2. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions<BR>&gt; &gt; &gt; 0x680, 0x0, 0xa, additional addresses: 0xf2800000 3. Raven U/L2<BR>&gt; &gt; &gt; Dino PS/2 Port (10) at 0xf2001000 [8/1], versions 0x6, 0x0, 0x96<BR>&gt; &gt; &gt; 4. Raven U/L2 Dino RS-232 (10) at 0xf2003000 [8/3], versions 0x6,<BR>&gt; &gt; &gt; 0x0, 0x8c 5. Raven U/L2 Core FW-SCSI(4) at
  0xf200c000 [8/12],<BR>&gt; &gt; &gt; versions 0x3b, 0x0, 0x89 6. Raven U/L2 Core BA(11) at 0xffd00000<BR>&gt; &gt; &gt; [8/16], versions 0x3b, 0x0, 0x81, additional addresses:<BR>&gt; &gt; &gt; 0xffd0c000 0xffc00000 7. Raven U/L2 Core Centronics (10) at<BR>&gt; &gt; &gt; 0xffd02000 [8/16/0], versions 0x3b, 0x0, 0x74, additional<BR>&gt; &gt; &gt; addresses: 0xffd01000 0xffd03000 8. Raven U/L2 Core Audio (10) at<BR>&gt; &gt; &gt; 0xffd04000[8/16/1], versions 0x3b, 0x4, 0x7b 9. Raven U/L2 Core<BR>&gt; &gt; &gt; RS-232 (10) at 0xffd05000 [8/16/4], versions 0x3b, 0x0, 0x8c 10.<BR>&gt; &gt; &gt; Raven U/L2 Core SCSI(10) at 0xffd06000 [8/16/5], versions 0x3b,<BR>&gt; &gt; &gt; 0x0, 0x82 11. Raven U/L2 Core LAN (802.3) (10) at 0xffd07000<BR>&gt; &gt; &gt; [8/16/6], versions 0x3b, 0x0, 0x8a 12. 
 Raven U/L2 Core PS/2 Port<BR>&gt; &gt; &gt; (10) at 0xffd08000 [8/16/7], versions 0x3b, 0x0, 0x84 13. Raven<BR>&gt; &gt; &gt; U/L2 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x3b,<BR>&gt; &gt; &gt; 0x0, 0x84 14. Raven Backplane Wax BA (11) at 0xffe00000[8/20],<BR>&gt; &gt; &gt; versions 0x17, 0x0, 0x8e 15. Raven Backplane Wax HIL (10) at<BR>&gt; &gt; &gt; 0xffe01000 [8/20/1], versions 0x17, 0x0, 0x73 16. Raven Backplane<BR>&gt; &gt; &gt; RS-232(10) at 0xffe02000 [8/20/2], versions 0x17, 0x0, 0x8c 17.<BR>&gt; &gt; &gt; Raven Backplane Wax EISA BA (11) at 0xfc000000 [8/20/5], versions<BR>&gt; &gt; &gt; 0x17, 0x0, 0x90, additional addresses: 0xffc88000 0xfc00000b 18.<BR>&gt; &gt; &gt; Gecko GSC Core Graphics(10) at 0xfa000000 [8/24], versions 0x16,<BR>&gt; &gt; &gt; 0x0, 0x85, add
 itional addresses: 0xf0026000 19. U2-IOA BC GSC+<BR>&gt; &gt; &gt; Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1, 0xc 20. U2-IOA<BR>&gt; &gt; &gt; BC Runway Port (12) at 0xfff8a000[10], versions 0x580, 0xf, 0xb<BR>&gt; &gt; &gt; 21. U2-IOA BC GSC+ Port (7) at 0xf103f000[10/63], versions 0x501,<BR>&gt; &gt; &gt; 0x1, 0xc 22. Raven U 240 (9000/780/C240) (0) at 0xfffa0000 [32],<BR>&gt; &gt; &gt; versions 0x599, 0x0, 0x4 23. Memory (1) at 0xfffb1000[49],<BR>&gt; &gt; &gt; versions 0x6f, 0x0, 0x9<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; The numbers in [] tell you what the tree looks like. In this<BR>&gt; &gt; &gt; example, we have 4 top-level devices: #1, #20, #22 &amp; #23.<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; &gt; I've tried digging in /proc without much success... is there a<BR>&gt; &gt; &g
 t; &gt; way to get this information from user space? PPC Linux exposes<BR>&gt; &gt; &gt; &gt; the device tree in /proc for example. A mechanism similar to<BR>&gt; &gt; &gt; &gt; /proc/bus/pci/devices(machine- parseable text) would be great,<BR>&gt; &gt; &gt; &gt; too.<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; In 2.5, this information's available via sysfs. I don't think<BR>&gt; &gt; &gt; we'll expose it in /proc.<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; &gt; PS: I noticed that /proc/iomem lists 00000000-000009ff as "PDC<BR>&gt; &gt; &gt; &gt; data(Page Zero)", is there a chance I can find what I need<BR>&gt; &gt; &gt; &gt; there? (I dd-ed it from /dev/mem but I can't say if it contains<BR>&gt; &gt; &gt; &gt; useful data...)<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; No, you need to actually make firmware 
 calls and you can't do that<BR>&gt; &gt; &gt; from user mode.<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; --<BR>&gt; &gt; &gt; "It's not Hollywood. War is real, war is primarily not about<BR>&gt; &gt; &gt; defeat or victory, it is about death. I've seen thousands and<BR>&gt; &gt; &gt; thousands of dead bodies. Do you think I want to have an academic<BR>&gt; &gt; &gt; debate on this subject?"-- Robert Fisk<BR>&gt; <BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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Subject: [parisc-linux] [3.3 regression] [hppa-linux] ICE at -O2 when building c++ code from doxygen
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>Submitter-Id:	net
>Originator:	Randolph Chung
>Organization:	Debian
>Confidential:	no
>Synopsis:	ICE at -O2 when building c++ code from doxygen
>Severity:	serious
>Priority:	medium
>Category:	optimization
>Class:		ice-on-legal-code
>Release:	3.3 20030309 (Debian prerelease) (Debian testing/unstable)
>Environment:
System: Linux gsyprf11.external.hp.com 2.4.20-pa18-UP #1 Sat Jan 4 22:06:52 PST 2003 parisc64 unknown unknown GNU/Linux
Architecture: parisc64

	<machine, os, target, libraries (multiple lines)>
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc hppa-linux
>Description:
    The attached program was extracted from util.cpp from the doxygen
    package. It causes an ICE on hppa-linux.

    The code compiles correctly with g++-3.2.3

# gcc -O2 -Wall -c bug.cpp
bug.cpp: In function `ClassDef* getResolvedClass(Definition*, const char*)':
bug.cpp:1913: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

>How-To-Repeat:
    Compile with g++-3.3 -O2 -Wall -c bug.cpp

>Fix:
    Unknown

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--u3/rZRmxL6MmkK24--


From - Thu Nov 08 21:27:04 2018
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From: Lyonel Vincent <vincentl@ec-lyon.fr>
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Subject: Re: [parisc-linux] enumerating devices from user space
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Xref: news.gmane.org gmane.linux.ports.parisc:17921

If you can find this, I will be VERY interested in having a look at it...
Thinking of it, this HP guy may well be me ;o)
You can contact me privately, it may happen that I know your instructor.

cheers,
lv.

> Being as I just got done with a class from HP Education on Linux, this very
> issue was brought up by all of us HP-UX guys.  We love our IOSCAN.  The
> instructor told us that someone within HP actually wrote an "ioscan" for
> Red Hat.  I'm thinking that getting a copy of that source code would be a
> good place to start.  I'm going to do a search for the guy tomorrow or get
> his name from our instructor to see if I can get a hold of his code.
> 
> derek

-- 
The software said it requires Windows 2000 or better, so I installed Linux.


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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: Re: [parisc-linux] bootp/tftpd :(
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Le jeudi, 13 mar 2003, =E0 00:27 Europe/Paris, trnepal a =E9crit :

> On Wednesday 12 March 2003 19:57, Thibaut VARENE wrote:
>
>> There's something wrong with you.
>> Rule nb 1: NEVER answer in private to a mailing-list message.
>
> ok, im sorry. i wrote directly to you cause my reply was a bit=20
> fast&silly ..
> you noticed that :).
obviously you still haven't found the "Reply All" command in your mail=20=

client.
>
>> Rule nb 2: NEVER claim there's a bug for software that works =
perfectly
>> well for thousands of peoples (unless you run unstable, but then=20
>> ALWAYS
>> blame yourself).
>
> yeah. i know. i always blame myself :). anyway i only said 'something=20=

> like a
> bug', cause my tftpd (woody stable) is correcting serving file only
> from /tftpboot//image (double slash .. uh, strange).
bad configuration in inetd and/or bad request from the client?
>
>> Rule nb 3: ALWAYS suspect a problem with the hardware when something
>> goes wrong. (moreover if the hardware seems to have already failed.
>> What's that scsi error you're talking about ?)
>
> i noticed errors (scsi command not executed and bus reset) issuing
> a dmesg (after escaping to a shell during the install process) with
> an external cdrom attached to the scsi-2 port. but i didnt quote cause=20=

> i lost
> them after the reboot (ok, i didnt wrote down something and i blame=20
> myself :)
still I can't help without output.
>
>> and what's that superblock/filesystem stuff you're talking about, how
>> did you get to that step?
>> network images only contains a kernel, they're not supposed to launch
>> any installer...
>
> lifimages i downloaded from =
http://pateam.esiee.fr/cd-images/lifimages/
> contain a kernel + a debian installer and the 712 crashed during =
ext2/3
> init.
dead hard drive?
>
>> let me suggest you to check items 2) and 6) from the template message
>> as well.
>
> ok, anyway i tried lifimage-2.4.19-pa16-PDC-20020914 and it worked !!
> (im downloading the base system)
cool.
>
> sorry for the annoyance maybe i posted only my anxiety about ..=20
> seeyou. byee,'
relax: watch a game, have a beer... True.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=




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From - Thu Nov 08 21:27:05 2018
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Hi Bruno,

That sounds like what I was looking for (HW path + version information)!
What do you think is the best approach?

cheers,
lv.

On Thu, 13 Mar 2003 12:30:44 +0100
bruno_vidal@hp.com wrote:

>     Hi guys.
> While developping the dump modules, I had to find a way to retrieve
> the hardware path of disk/hba. So I had to developpe a small hack
> in the kernel/firmware.c in order to retrive the right hba.
> But it is parisc dependant. Do you want I try to add an ioctl in my
> dump modules in order to print in user space this informations ?
> Example:
> 
> size:1500160 nr_sects:3000320 start_sect:374784
> hwpath: 0/0/1/1.15.0.0.
> dump device opened: 0x813 with index: 0 at hpa: 0x900
> 
> So my functions are able to print the hw path of each io modules.
> Is it what you are looking for ?
> 
> --
>         Vidal Bruno, (770-4271)
>         SSD-HA Team, HP-UX & LINUX Support
>         bruno_vidal@admin.france.hp.com
> 
> 




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On Thu, Mar 13, 2003 at 12:02:30AM -0700, Grant Grundler wrote:
> After powering off all 20 SCSI drives (damn SCSI subsystem is *way*
> too verbose), I was finally able to collect a full boot log via dmesg:

We can up the size of the dmesg buffer.  Might be easier ;-)

> ...
> lba version TR2.0 (0x1) found at 0xfed38000
> Can't support LBA older than TR2.1 - continuing under adversity.

Note to self: find replacement C3k IO board for grant.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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 Matthew Wilcox <willy@debian.org> wrote: 
On Thu, Mar 13, 2003 at 12:02:30AM -0700, Grant Grundler wrote:
> After powering off all 20 SCSI drives (damn SCSI subsystem is *way*
> too verbose), I was finally able to collect a full boot log via dmesg:

We can up the size of the dmesg buffer. Might be easier ;-)

> ...
> lba version TR2.0 (0x1) found at 0xfed38000
> Can't support LBA older than TR2.1 - continuing under adversity.

Note to self: find replacement C3k IO board for grant.

 

That would be the C3k.....the I/O is attached to the system card.  The motherboard with processor attached including all the I/O ports are one part number.

derek




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<P> 
<P>&nbsp;<B><I>Matthew Wilcox &lt;willy@debian.org&gt;</I></B> wrote: 
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">
<P>On Thu, Mar 13, 2003 at 12:02:30AM -0700, Grant Grundler wrote:<BR>&gt; After powering off all 20 SCSI drives (damn SCSI subsystem is *way*<BR>&gt; too verbose), I was finally able to collect a full boot log via dmesg:<BR><BR>We can up the size of the dmesg buffer. Might be easier ;-)<BR><BR>&gt; ...<BR>&gt; lba version TR2.0 (0x1) found at 0xfed38000<BR>&gt; Can't support LBA older than TR2.1 - continuing under adversity.<BR><BR>Note to self: find replacement C3k IO board for grant.</P>
<P>&nbsp;</P>
<P>That would be the C3k.....the I/O is attached to the system card.&nbsp; The motherboard&nbsp;with processor attached including all the I/O ports are one part number.</P>
<P>derek<BR></P></BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
<a href="http://webhosting.yahoo.com/ps/wh3/prod/">Yahoo! Web Hosting</a> - establish your business online
--0-1945929657-1047560819=:20023--


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Subject: Re: [parisc-linux] FYA - C3000 adventure
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On Thu, Mar 13, 2003 at 12:55:11PM +0000, Matthew Wilcox wrote:
> > lba version TR2.0 (0x1) found at 0xfed38000
> > Can't support LBA older than TR2.1 - continuing under adversity.
> 
> Note to self: find replacement C3k IO board for grant.

heh - thanks...but it actually works fine. This is a proto-C3000
that I've upgraded the CPU to one that works right. We shouldn't
ever see this msg on machines sold to customers.

grant


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On Thursday 13 March 2003 12:21, Thibaut VARENE wrote:

> obviously you still haven't found the "Reply All" command in your mail
> client.

mm, eheh. again i replied only to you cause i thought it was not
a stuff that matters for the list .. anyway now im writing to all:
(probably annoying someone :)

>
> bad configuration in inetd and/or bad request from the client?

i dont know .. anyway my inetd was right, a standard one as i read
in your faq. i posted it in my first post. i cant control the client beha=
viour=20
(or im unable to :) ..

my bootptab,

pa:ht=3Dether:bf=3Dlifimage:hd=3D/tftpboot/:ha=3D080009C9A102:ip=3D10.0.0=
=2E12:sm=3D255.255.255.0

my inetd.conf,

tftp    dgram   udp     wait    root    /usr/sbin/tcpd  /usr/sbin/in.tftp=
d=20
/tftpboot

i used to launch bootpd -d9 so i dont have a bootpd inetd entry.

this is a successfull boot:

Mar 12 23:46:27 vivaio bootpd[867]: found 10.0.0.12 (pa)
Mar 12 23:46:27 vivaio bootpd[867]: bootfile=3D"/tftpboot//lifimage"

this in a unsuccessfull boot:

Mar 12 16:39:37 vivaio in.tftpd[544]: connect from 10.0.0.12
Mar 12 16:39:37 vivaio tftpd[545]: tftpd: trying to get file:=20
/tftboot/lifimage

> still I can't help without output.

mm, i see. anyway i got those errors only with the ext cdrom
(a sony drive in a cool apple cd300 chassis :) .. so all was probably due=
 to=20
the cdrom. but with no errors the lifimage (the newest i found, 09march) =
was=20
unable to write the filesystem to the disk.

> dead hard drive?

mm i was able to run a badblocks check and i wrote a filesystem
with another machine (debian/intel) before trying the good (for me) lifim=
age=20
=2E. anyway now it rocks. probably it was a software failure i cant track=
 down=20
(maybe a borderline dead drive, maybe it will be dead tomorrow :).

> cool.

sure. my little 712/60 is now playing mp3 from its internal
speaker. and im happy :)).=20

> relax: watch a game, have a beer... True.

eheh, okk. thankyou. byee.'



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Xref: news.gmane.org gmane.linux.ports.parisc:17929

Thanks to Peter Anvin, we now have an area on kernel.org:

http://www.kernel.org/pub/linux/kernel/ports/parisc/

So far I've just copied some recent patches there.  Paul is still
autogenerating the patches on ftp.parisc-linux.org and I'm just copying
them to kernel.org manually.  Suggestions on naming/contents/organisation
are welcome.

Hopefully this'll make it clear to people they shouldn't be running Linus'
kernel just yet ;-)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi Bruno,

The ioctl sounds great to me.
On which device would you "attach" it (as some of the devices I'd like
to report don't even have an entry in /dev), create a new one? Correct
me if I'm wrong (I don't know much about IOCTLs)
If you want me to help testing/developing, I have a 9000/C180 w/ Debian
(unstable) ready to use.

cheers,
lv.

PS: being PA-RISC dependent is not a problem, I already have ifdefs for
x86, PowerPC and Alpha

On Fri, 14 Mar 2003 09:45:59 +0100
bruno_vidal@hp.com wrote:

>     Hi
> I'll try to add an ioctls in my dump driver to print this list. It
> will give a good starting point, isn't it ?
> The other choice is to create a new modules that use my functions
> in firmware.c. But keep in mind that it will usefull only for pa-risc.
> I don't know if it is the best practice.
> 
>     cheers.
> 
> Lyonel Vincent wrote:
> 
> > Hi Bruno,
> >
> > That sounds like what I was looking for (HW path + version
> > information)! What do you think is the best approach?
> >
> > cheers,
> > lv.
> >
> > On Thu, 13 Mar 2003 12:30:44 +0100
> > bruno_vidal@hp.com wrote:
> >
> > >     Hi guys.
> > > While developping the dump modules, I had to find a way to
> > > retrieve the hardware path of disk/hba. So I had to developpe a
> > > small hack in the kernel/firmware.c in order to retrive the right
> > > hba. But it is parisc dependant. Do you want I try to add an ioctl
> > > in my dump modules in order to print in user space this
> > > informations ? Example:
> > >
> > > size:1500160 nr_sects:3000320 start_sect:374784
> > > hwpath: 0/0/1/1.15.0.0.
> > > dump device opened: 0x813 with index: 0 at hpa: 0x900
> > >
> > > So my functions are able to print the hw path of each io modules.
> > > Is it what you are looking for ?
> > >
> > > --
> > >         Vidal Bruno, (770-4271)
> > >         SSD-HA Team, HP-UX & LINUX Support
> > >         bruno_vidal@admin.france.hp.com
> > >
> > >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> --
>         Vidal Bruno, (770-4271)
>         SSD-HA Team, HP-UX & LINUX Support
>         bruno_vidal@admin.france.hp.com
> 
> 



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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: Re: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
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Xref: news.gmane.org gmane.linux.ports.parisc:17932

>>
>Ok I am gonna try to rebuild it with gcc-3.0.
>

Wel I just do it (in 32bits naturaly) and already encounter a problem :_)
:
`gcc -print-libgcc-file-name` /usr/src/work/linux-2.4.20-pa28/arch/parisc/lib/lib.a
/usr/src/work/linux-2.4.20-pa28/lib/lib.a  \
        --end-group \
        -o vmlinux
net/network.o(.text.rtnetlink_rcv+0x84): In function `rtnetlink_rcv':
: undefined reference to `rtnetlink_rcv_skb'
make: *** [vmlinux] Error 1

(with gcc-3.2 with same src && same .config there was no pb)

Thanks in advance for advise,
    Joel



---------------------------------
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... Plus d'info sur http://complete.tiscali.be




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Hi,

since the patch was included in CVS, several modules fail to load with
unresolved external __flush_dcache_page.

This should fix it:

# cvs diff -u parisc_ksyms.c
Index: parisc_ksyms.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/parisc_ksyms.c,v
retrieving revision 1.44
diff -u -r1.44 parisc_ksyms.c
--- parisc_ksyms.c      11 Jan 2003 20:10:46 -0000      1.44
+++ parisc_ksyms.c      14 Mar 2003 12:49:49 -0000
@@ -127,6 +127,7 @@
 #include <asm/cache.h>
 EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
 EXPORT_SYMBOL(flush_kernel_dcache_page);
+EXPORT_SYMBOL(__flush_dcache_page);
 EXPORT_SYMBOL(flush_all_caches);

 #include <asm/unistd.h>

--jochen



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On Fri, Mar 14, 2003 at 01:48:59PM +0100, Joel Soete wrote:
> net/network.o(.text.rtnetlink_rcv+0x84): In function `rtnetlink_rcv':
> : undefined reference to `rtnetlink_rcv_skb'
> make: *** [vmlinux] Error 1
> 
> (with gcc-3.2 with same src && same .config there was no pb)

You've just hit the gcc thinks it's smarter than you are bug.

net/core/rtnetlink.c:extern __inline__ int rtnetlink_rcv_skb(struct sk_buff *skb)

gcc 3.3 decides to not believe you want this function inlined.  probably
the right fix for this is to make this function static inline (you can
drop the `__' around inline, it's not necessary).  This is also the case
for linux 2.5.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, Mar 14, 2003 at 01:33:05PM +0100, Lyonel Vincent wrote:
> The ioctl sounds great to me.

It sounds like an awful idea to me.  I'll never take that kind of patch
into my tree.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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okokok I won't argue then.
I would have liked to have ioscan-like support, but anyway...

On Fri, 14 Mar 2003 13:19:21 +0000
Matthew Wilcox <willy@debian.org> wrote:

> On Fri, Mar 14, 2003 at 01:33:05PM +0100, Lyonel Vincent wrote:
> > The ioctl sounds great to me.
> 
> It sounds like an awful idea to me.  I'll never take that kind of
> patch into my tree.
> 


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On Fri, Mar 14, 2003 at 03:05:49PM +0100, Lyonel Vincent wrote:
> okokok I won't argue then.
> I would have liked to have ioscan-like support, but anyway...

Well, you can have it in 2.5; start looking at sysfs.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, Mar 14, 2003 at 02:04:17PM +0100, Jochen Friedrich wrote:
> since the patch was included in CVS, several modules fail to load with
> unresolved external __flush_dcache_page.

yes...I just ran into the same problem when playing around with
the latest qlogic (qla2xxx v6.0.4) driver.
Appended is a more complete one which I'm not quite done with
yet either. Hopefully I can build all the flavors and commit this weekend.

grant

Index: arch/parisc/kernel/parisc_ksyms.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/parisc_ksyms.c,v
retrieving revision 1.44
diff -u -p -r1.44 parisc_ksyms.c
--- arch/parisc/kernel/parisc_ksyms.c   11 Jan 2003 20:10:46 -0000
1.44
+++ arch/parisc/kernel/parisc_ksyms.c   14 Mar 2003 16:16:47 -0000
@@ -127,7 +127,15 @@ EXPORT_SYMBOL(outsl);
 #include <asm/cache.h>
 EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
 EXPORT_SYMBOL(flush_kernel_dcache_page);
-EXPORT_SYMBOL(flush_all_caches);
+
+/* asm/pgalloc.h doesn't include all it's dependencies */
+extern void __flush_dcache_page(struct page *page);
+EXPORT_SYMBOL(__flush_dcache_page);
+
+#ifndef CONFIG_SMP
+extern void flush_cache_all_local(void);
+EXPORT_SYMBOL(flush_cache_all_local);
+#endif
 
 #include <asm/unistd.h>
 extern long sys_open(const char *, int, int);



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>
>On Fri, Mar 14, 2003 at 01:48:59PM +0100, Joel Soete wrote:
>> net/network.o(.text.rtnetlink_rcv+0x84): In function `rtnetlink_rcv':
>> : undefined reference to `rtnetlink_rcv_skb'
>> make: *** [vmlinux] Error 1
>> 
>> (with gcc-3.2 with same src && same .config there was no pb)
>
>You've just hit the gcc thinks it's smarter than you are bug.
>
>net/core/rtnetlink.c:extern __inline__ int rtnetlink_rcv_skb(struct sk_buff
>*skb)
>
>gcc 3.3 decides to not believe you want this function inlined.  probably
>the right fix for this is to make this function static inline (you can
>drop the `__' around inline, it's not necessary).  This is also the case
>for linux 2.5.
>
Right Willy that allow to compile :)

Unfortunately it failled to boot :_( with following dump:
Freeing unused kernel memory: 246k freed

Stack Dump:
 10674680:  0006ff0f 10371278 100dc000 00000000 
 10674670:  107dd2a0 101639e4 107dd220 103fcc80 
 10674660:  10398010 1003bd20 00027174 faf00068 
 10674650:  100bbd20 00000001 00000040 100bba00 
 10674640:  00000000 00000000 00000000 00000004 
 10674630:  faf00290 101342f8 00020002 00020002 

Kernel addresses on the stack:
 [<101639e4>]  [<101342f8>]  [<1010bbf8>]  [<101346d4>] 
 [<10110f90>]  [<10110084>]  [<1010fcf4>]  [<10164e10>] 
 [<101639e4>]  [<1017bfc4>]  [<1017c21c>]  [<1012d9f4>] 


Kernel Fault: Code=15 regs=10674680 (Addr=00027750)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 103eee50 101342f8 00027750
r04-07  00000000 0000000e 0000000e 00027174
r08-11  00016800 00000001 10674000 1017c21c
r12-15  00027174 ffffffff 00000000 00000000
r16-19  103af5c0 00027974 ffffffff 10398010
r20-23  00001000 00027753 fffffff8 100bb9f4
r24-27  00000000 10674558 00027752 10398010
r28-31  00027752 00000000 10674680 40061077
sr0-3   00000001 00000001 00000000 00000001
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10351b7c 10351b80
 IIR: 0c601094    ISR: 00000000  IOR: 00027750
 CPU:        0   CR30: 10674000 CR31: 10438000
 ORIG_R28: 00001000

Submitted to dump_analyser.sh, I obtain:

IAOQ = 10351b7c
Func: __canonicalize_funcptr_for_compare, Off: 38, Addr: 0x10351b7c
10351b70:	2a 6b 50 00 	addil 56800,r19,%r1
10351b74:	48 21 0c a8 	ldw 654(r1),r1
10351b78:	d4 60 1c 1e 	depwi 0,31,2,r3
10351b7c:	0c 60 10 94 	ldw 0(sr0,r3),r20

GR0 = 00000000

GR1 = 103eee50
Func: _GLOBAL_OFFSET_TABLE_, Off: 0, Addr: 0x103eee50

GR2 = 101342f8
Func: do_sigaction, Off: a8, Addr: 0x101342f8
101342f0:	e8 50 0b 39 	b,l 10114894 <print_parisc_device+0x3d0>,rp
101342f4:	0c 73 12 99 	stw r19,-4(sr0,r3)
101342f8:	34 1a 00 02 	ldi 1,r26
101342fc:	e8 50 0b 21 	b,l 10114894 <print_parisc_device+0x3d0>,rp

GR3 = 00027750

GR4 = 00000000

GR5 = 0000000e

GR6 = 0000000e

GR7 = 00027174

GR8 = 00016800

GR9 = 00000001

GR10 = 10674000

GR11 = 1017c21c
Func: sys_dup, Off: 28, Addr: 0x1017c21c
1017c210:	34 13 3f ef 	ldi -9,r19
1017c214:	e8 5f 1b ed 	b,l 1017c010 <dupfd>,rp
1017c218:	08 00 02 40 	nop
1017c21c:	08 1c 02 53 	copy ret0,r19

GR12 = 00027174

GR13 = ffffffff

GR14 = 00000000

GR15 = 00000000

GR16 = 103af5c0
Func: init_mm, Off: 0, Addr: 0x103af5c0

GR17 = 00027974

GR18 = ffffffff

GR19 = 10398010
Func: $global$, Off: 0, Addr: 0x10398010

GR20 = 00001000

GR21 = 00027753

GR22 = fffffff8

GR23 = 100bb9f4

GR24 = 00000000

GR25 = 10674558

GR26 = 00027752

GR27 = 10398010
Func: $global$, Off: 0, Addr: 0x10398010

GR28 = 00027752

GR29 = 00000000

GR30 = 10674680

GR31 = 40061077

Kernel symbols on the stack:
[<101639e4>]: Func: dentry_open, Off: f4, Addr: 0x101639e4
[<101342f8>]: Func: do_sigaction, Off: a8, Addr: 0x101342f8
[<1010bbf8>]: Func: handle_interruption, Off: 150, Addr: 0x1010bbf8
[<101346d4>]: Func: sys_rt_sigaction, Off: 84, Addr: 0x101346d4
[<10110f90>]: Func: syscall_exit, Off: 0, Addr: 0x10110f90
[<10110084>]: Func: intr_check_sig, Off: 0, Addr: 0x10110084
[<1010fcf4>]: Func: _switch_to_ret, Off: 0, Addr: 0x1010fcf4
[<10164e10>]: Func: chrdev_open, Off: 64, Addr: 0x10164e10
[<101639e4>]: Func: dentry_open, Off: f4, Addr: 0x101639e4
[<1017bfc4>]: Func: locate_fd, Off: 70, Addr: 0x1017bfc4
[<1017c21c>]: Func: sys_dup, Off: 28, Addr: 0x1017c21c
[<1012d9f4>]: Func: it_real_fn, Off: 0, Addr: 0x1012d9f4

Done.

It doesn't help me more right now (some sleep need :) ).

Thanks,
    Joel


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On Fri, Mar 14, 2003 at 02:08:48PM +0000, Matthew Wilcox wrote:
> On Fri, Mar 14, 2003 at 03:05:49PM +0100, Lyonel Vincent wrote:
> > okokok I won't argue then.
> > I would have liked to have ioscan-like support, but anyway...
> 
> Well, you can have it in 2.5; start looking at sysfs.

willy and I talked offline and it seems like the right
answer is to backport _the user interface_ - ie something
that *looks* like sysfs but could be based on /proc.

I'd basically like to see all resources in struct parisc_device
exported using the same name as the field - matching sysfs field
names use for PCI where appropriate. Willy suggested id be broken
out into it's struct parisc_device_id parts and provided
directly has hex strings (eg hw_type  entry could contain "0x5").
Details of how sysfs currently looks are still changing - don't get
hung up in the current details.

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:17941

>Category:       c++
>Synopsis:       [3.3 regression] internal compiler error: in cp_expr_size, at cp/cp-lang.c:307
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Originator:     Randolph Chung <tausq@debian.org>
>Release:        3.3 20030309 (Debian prerelease) (Debian testing/unstable)
>Environment:
System: Linux gsyprf11.external.hp.com 2.4.20-pa18-UP #1 Sat Jan 4 22:06:52 PST 2003 parisc64 unknown unknown GNU/Linux
Architecture: parisc64
>Description:
The following code (extracted from goldedplus), when compiled with g++ -c -O2 bug.cpp, gives:

bug.cpp: In member function `int ftn_golded_nodelist_index::addrcmp() const':
bug.cpp:34: internal compiler error: in cp_expr_size, at cp/cp-lang.c:307
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.


class ftn_addr {
public:
  unsigned short zone;
  unsigned short net;
  unsigned short node;
  unsigned short point;

  ftn_addr();
  ftn_addr(const ftn_addr& a);
  int  compare(const ftn_addr& other) const;
  ftn_addr& operator=(const ftn_addr& a);
};

#pragma pack(1)

struct _GEIdx {
  ftn_addr addr;       // Node address
  _GEIdx() : addr() {}
};

#pragma pack()

class ftn_golded_nodelist_index {
protected:
  _GEIdx   current;
  ftn_addr searchaddr;
  int      addrcmp() const;

public:
  ftn_golded_nodelist_index();
};

int ftn_golded_nodelist_index::addrcmp() const {
  return searchaddr.compare(current.addr);
}
>How-To-Repeat:
see description
compiles fine with g++-3.2
>Fix:
unknown
>Unformatted:


From - Thu Nov 08 21:27:06 2018
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From: Randolph Chung <tausq@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] c++/10091: [3.3 regression] internal compiler error: in cp_expr_size, at cp/cp-lang.c:307
Date: 15 Mar 2003 07:54:02 -0000
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Xref: news.gmane.org gmane.linux.ports.parisc:17942

>Number:         10091
>Category:       c++
>Synopsis:       [3.3 regression] internal compiler error: in cp_expr_size, at cp/cp-lang.c:307
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Sat Mar 15 07:56:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Randolph Chung <tausq@debian.org>
>Release:        3.3 20030309 (Debian prerelease) (Debian testing/unstable)
>Organization:
>Environment:
System: Linux gsyprf11.external.hp.com 2.4.20-pa18-UP #1 Sat Jan 4 22:06:52 PST 2003 parisc64 unknown unknown GNU/Linux
Architecture: parisc64
>Description:
The following code (extracted from goldedplus), when compiled with g++ -c -O2 bug.cpp, gives:

bug.cpp: In member function `int ftn_golded_nodelist_index::addrcmp() const':
bug.cpp:34: internal compiler error: in cp_expr_size, at cp/cp-lang.c:307
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.


class ftn_addr {
public:
  unsigned short zone;
  unsigned short net;
  unsigned short node;
  unsigned short point;

  ftn_addr();
  ftn_addr(const ftn_addr& a);
  int  compare(const ftn_addr& other) const;
  ftn_addr& operator=(const ftn_addr& a);
};

#pragma pack(1)

struct _GEIdx {
  ftn_addr addr;       // Node address
  _GEIdx() : addr() {}
};

#pragma pack()

class ftn_golded_nodelist_index {
protected:
  _GEIdx   current;
  ftn_addr searchaddr;
  int      addrcmp() const;

public:
  ftn_golded_nodelist_index();
};

int ftn_golded_nodelist_index::addrcmp() const {
  return searchaddr.compare(current.addr);
}
>How-To-Repeat:
see description
compiles fine with g++-3.2
>Fix:
unknown
>Release-Note:
>Audit-Trail:
>Unformatted:


From - Thu Nov 08 21:27:06 2018
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From: "Mahesh Pujara" <Mahesh.Pujara@lntinfotech.com>
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Subject: [parisc-linux] Accessing the FIB tables
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HI,
      I have Linux machine acting as a router and Zebra Daemon  is running
on that. Currently
RIP is configured which is  receiving routes from another gateway. The
routes are updated in FIB
tables.
      I want to read This FIB table , which is declared  as a
struct fib_table *main_table .
I am able to access  and read this table.  i want  to read certain
information from this FIB table and want
to build my own forwarding  table. from this table i am reading NetID,
Netmask, and IP address of  Next Hop gateway.

IP address of  Next Hope gateway is available in fib_nh->nh_gw.  Apart from
this i also want the Mac  address of  Next Hope gateway.   so how  can i
get the MAC address for  Next Hop gateway ??

I  am able to get the pointer to Next hop device that is ,
 #define fib_dev        fib_nh[0].nh_dev

in net_device structure definition ,

#ifdef CONFIG_NET_FASTROUTE
#define NETDEV_FASTROUTE_HMASK 0xF
      /* Semi-private data. Keep it at the end of device struct. */
      rwlock_t          fastpath_lock;
      struct dst_entry  *fastpath[NETDEV_FASTROUTE_HMASK+1];
#endif

 There is a dst_entry in which the hh_cache * is stored .
But the  struct dst_entry     *fastpath[NETDEV_FASTROUTE_HMASK+1];  is null
.
even  CONFIG_NET_FASTROUTE is configured.

So what could be the reason for that??


or  is there any other way to get the MAC address for  Next Hop gateway ??
I know one way is to Do
ARP. But doing ARP would slow down the process.

Any help or link on this is Appreciated.







Cheers,
Mahesh Pujara




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I will be out of the office starting March 14, 2003 and will not return
until March 19, 2003.




From - Thu Nov 08 21:27:06 2018
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Subject: Re: [parisc-linux] H Timothy Trinh/Somerset/IBM is out of the office.
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On Sat, Mar 15, 2003 at 07:12:09PM -0700, H Timothy Trinh wrote:
> I will be out of the office starting March 14, 2003 and will not return
> until March 19, 2003.

http://www.parisc-linux.org/mailing-lists/outlookooo.html

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Friday 14 March 2003 07:17 am, Matthew Wilcox wrote:
> On Fri, Mar 14, 2003 at 01:48:59PM +0100, Joel Soete wrote:
> > net/network.o(.text.rtnetlink_rcv+0x84): In function `rtnetlink_rcv':
> > : undefined reference to `rtnetlink_rcv_skb'
> >
> > make: *** [vmlinux] Error 1
> >
> > (with gcc-3.2 with same src && same .config there was no pb)
>
> You've just hit the gcc thinks it's smarter than you are bug.
>
> net/core/rtnetlink.c:extern __inline__ int rtnetlink_rcv_skb(struct sk_buff
> *skb)
>
> gcc 3.3 decides to not believe you want this function inlined.  probably
> the right fix for this is to make this function static inline (you can
> drop the `__' around inline, it's not necessary).  This is also the case
> for linux 2.5.

Stolen from the GCC thread on 3.x.x inlining...
- - - - GCC - - - - -
For the record, the kernel doesn't need this any more.  Go check 2.5;
new versions of <linux/compiler.h> contain this line:
#define inline          __inline__ __attribute__((always_inline))
- - - - - - - - - - - -
That forces GCC to ignore its changed inline metrics and simply inline
the function.

Mike


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Xref: news.gmane.org gmane.linux.ports.parisc:17947

On Sun, Mar 16, 2003 at 04:52:19PM -0600, Michael S. Zick wrote:
> On Friday 14 March 2003 07:17 am, Matthew Wilcox wrote:
> > net/core/rtnetlink.c:extern __inline__ int rtnetlink_rcv_skb(struct sk_buff
> > *skb)
> Stolen from the GCC thread on 3.x.x inlining...
> - - - - GCC - - - - -
> For the record, the kernel doesn't need this any more.  Go check 2.5;
> new versions of <linux/compiler.h> contain this line:
> #define inline          __inline__ __attribute__((always_inline))
> - - - - - - - - - - - -
> That forces GCC to ignore its changed inline metrics and simply inline
> the function.

Yes, but...

 * Joel's using 2.4, not 2.5
 * #define inline doesn't help functions which are marked as __inline__

This isn't a function which absolutely needs to be inlined.  It can
be `static inline' and gcc can do whatever it likes then.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
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Xref: news.gmane.org gmane.linux.ports.parisc:17948

On Sunday 16 March 2003 05:06 pm, Matthew Wilcox wrote:
> On Sun, Mar 16, 2003 at 04:52:19PM -0600, Michael S. Zick wrote:
> > On Friday 14 March 2003 07:17 am, Matthew Wilcox wrote:
> > > net/core/rtnetlink.c:extern __inline__ int rtnetlink_rcv_skb(struct
> > > sk_buff *skb)
> >
> > Stolen from the GCC thread on 3.x.x inlining...
> > - - - - GCC - - - - -
> > For the record, the kernel doesn't need this any more.  Go check 2.5;
> > new versions of <linux/compiler.h> contain this line:
> > #define inline          __inline__ __attribute__((always_inline))
> > - - - - - - - - - - - -
> > That forces GCC to ignore its changed inline metrics and simply inline
> > the function.
>
> Yes, but...
>
>  * Joel's using 2.4, not 2.5
Exactly why I mentioned it.

>  * #define inline doesn't help functions which are marked as __inline__
If he follows your suggestion of dropping the "__" around "inline" it will.

>
> This isn't a function which absolutely needs to be inlined.  It can
> be `static inline' and gcc can do whatever it likes then.
The subject is getting a lot of discussion on the GCC list.  I only mentioned
this one workaround so that Joel could get on with his work before the issue
is settled on the GCC list.

Mike


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: [parisc-linux] unsupported ioctl wrappers?
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Xref: news.gmane.org gmane.linux.ports.parisc:17949

FYI,
booting 2.4.20-pa31, I get the follow msgs on my console.
Not sure if the following ioctl wrappers are new or known to be missing.

...
Loading modules: 
Starting raid devices: 
sys32_ioctl: Unknown cmd fd(3) cmd(40041272) arg(faf01500)
sys32_ioctl: Unknown cmd fd(3) cmd(40041272) arg(faf01500)
sys32_ioctl: Unknown cmd fd(3) cmd(40041272) arg(faf01500)
done.
Starting RAID devices: handling MD device /dev/md0
...

grant


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Hi all,

On the N4000 which I can test for a short time there are fc cards.
lspci give me following info about those cards:

20:00.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel Host
Adapter (rev 0b)
d0:00.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel Host
Adapter (rev 0b)
e0:00.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel Host
Adapter (rev 0b)

The question is: which driver should I use (cpqfc?)?

Thanks for info,
        Joel


---------------------------------
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On Mon, 2003-03-17 12:05:20 +0100, Joel Soete <jsoe0708@tiscali.be>
wrote in message <3E68A12A00002910@ocpmta3.freegates.net>:
> Hi all,
>=20
> On the N4000 which I can test for a short time there are fc cards.
> lspci give me following info about those cards:
>=20
> 20:00.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel Host=
 Adapter (rev 0b)
> d0:00.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel Host=
 Adapter (rev 0b)
> e0:00.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel Host=
 Adapter (rev 0b)

[line break-ups corrected]

> The question is: which driver should I use (cpqfc?)?

I do not have such a card, but:

/usr/share/misc/pci.ids:
103c  Hewlett-Packard Company
	1028  Tach TL Fibre Channel Host Adapter

So it seems your device is 103c:1028. In the kernel, this maps through
=2E/linux/include/linux/pci_ids.h:

#define PCI_DEVICE_ID_HP_TACHYON      0x1028

So your device is called "PCI_DEVICE_ID_HP_TACHYON". Searching for this
string, you'll find it in ./linux/drivers/scsi/cpqfcTSinit.c, so that
card seems to be supported.

See, it's quite easy to see if a PCI card seems to be supported:-)

MfG, JBG



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Hi Grant,

sounds very good to me (and way cleaner)...
I'll be happy to try to help.

cheers,
lv.

On Fri, Mar 14, 2003 at 10:29:24AM -0700, Grant Grundler wrote:
> On Fri, Mar 14, 2003 at 02:08:48PM +0000, Matthew Wilcox wrote:
> > On Fri, Mar 14, 2003 at 03:05:49PM +0100, Lyonel Vincent wrote:
> > > okokok I won't argue then.
> > > I would have liked to have ioscan-like support, but anyway...
> > 
> > Well, you can have it in 2.5; start looking at sysfs.
> 
> willy and I talked offline and it seems like the right
> answer is to backport _the user interface_ - ie something
> that *looks* like sysfs but could be based on /proc.
> 
> I'd basically like to see all resources in struct parisc_device
> exported using the same name as the field - matching sysfs field
> names use for PCI where appropriate. Willy suggested id be broken
> out into it's struct parisc_device_id parts and provided
> directly has hex strings (eg hw_type  entry could contain "0x5").
> Details of how sysfs currently looks are still changing - don't get
> hung up in the current details.
> 
> grant

-- 
The software said it requires Windows 2000 or better, so I installed Linux.


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>-- Original Message --
>From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
>To: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] FC driver?
>Date: Mon, 17 Mar 2003 12:18:01 +0100
>
>
>On Mon, 2003-03-17 12:05:20 +0100, Joel Soete <jsoe0708@tiscali.be>
>wrote in message <3E68A12A00002910@ocpmta3.freegates.net>:
>> Hi all,
>> 
>> On the N4000 which I can test for a short time there are fc cards.
>> lspci give me following info about those cards:
>> 
>> 20:00.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel Host
>Adapter (rev 0b)
>> d0:00.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel Host
>Adapter (rev 0b)
>> e0:00.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel Host
>Adapter (rev 0b)
>
>[line break-ups corrected]
>
>> The question is: which driver should I use (cpqfc?)?
>
>I do not have such a card, but:
>
>/usr/share/misc/pci.ids:
>103c  Hewlett-Packard Company
>	1028  Tach TL Fibre Channel Host Adapter
>
>So it seems your device is 103c:1028. In the kernel, this maps through
>./linux/include/linux/pci_ids.h:
>
>#define PCI_DEVICE_ID_HP_TACHYON      0x1028
>
>So your device is called "PCI_DEVICE_ID_HP_TACHYON". Searching for this
>string, you'll find it in ./linux/drivers/scsi/cpqfcTSinit.c, so that
>card seems to be supported.
>
>See, it's quite easy to see if a PCI card seems to be supported:-)
>
>MfG, JBG
>
cool :)

Thanks a lot for those kind explanations,
    Joel


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Hello.

I try to install Debian-Linux 3.0 on a D-class server (D-250). The =
terminal
is a 70096 on serial port. The kernel boots the machine with no problem,
but the install screen are not right. Is it possible to use this terminal
for installation?

Thx in advance for any advice.

Best regards.

Dirk Emmermacher


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Dirk,

>-- Original Message --
>From: "Dirk Emmermacher" <Dirk.Emmermacher@ntb-infoline.de>
>To: <parisc-linux@lists.parisc-linux.org>
>Subject: [parisc-linux] Problem on install
>Date: Fri, 14 Mar 2003 12:02:40 +0100
>
>
>Hello.
>
>I try to install Debian-Linux 3.0 on a D-class server (D-250). The terminal
>is a 70096 on serial port. The kernel boots the machine with no problem,
>but the install screen are not right. Is it possible to use this terminal
>for installation?
>
Yes,

I do it (a time ago): just change the setup of your terminal to vt100 emulation
(or something near I do not remember exactly).

hth,
    Joel


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> >So your device is called "PCI_DEVICE_ID_HP_TACHYON". Searching for this
> >string, you'll find it in ./linux/drivers/scsi/cpqfcTSinit.c, so that
> >card seems to be supported.

well....

this is the "right" driver, but it doesn't work on parisc. Grant has
poked at it a little bit but afaik it still doesn't work. The driver is
not that well written either, so that doesn't help either :(

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: Re: [parisc-linux] FC driver?
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On Mon, Mar 17, 2003 at 12:18:01PM +0100, Jan-Benedict Glaw wrote:
> So your device is called "PCI_DEVICE_ID_HP_TACHYON".

Please don't ever call a TachLite (TL) devices "Tachyon".
Tachyon (5000) was the first FC chip made by HP (now Agilent)
and was a nightmare to program. TachLite  (5100/5166)
had a simpler programming model and fewer bugs. TachLite XL2
chips (5200) use the same programming model.


> See, it's quite easy to see if a PCI card seems to be supported:-)

Yes, but sometimes it's easier to start with "lspci -n" output.

cpqfc code suggests it supports all Tachlite HBAs.
But it depends on GBIC/HBA configuration and HPUX folks haven't
been interested in making cpqfc work with their XL2 HBA.
Jes Sorensen/Martin Petersen did get older (5100/5166) TL HBAs
from HP working with cpqfc driver.

grant


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Got a wierd glibc/kernel problem...

This all started by simply trying to run the ltp tests on the linux 2.5
kernel.  

The ltp tests run the ldd command, which we tracked down to this
final command: /lib/ld.so.1 --verify /bin/sh

Note: The --verify /bin/sh is irrelevant for the purpose of these
errors, /lib/ld.so.1 displays this problem w/o any additional
arguments.  


Linux vega 2.5.64-pa5 #3 Sun Mar 16 23:44:38 MST 2003 parisc unknown
unknown GNU/Linux
rbrad@vega:~$ /lib/ld.so.1 --verify /bin/sh
Inconsistency detected by ld.so: rtld.c: 879: dl_main: Assertion
`_rtld_local._dl_rtld_map.l_libname' failed!
rbrad@vega:~$

With the same system, but running the 2.4 kernel .... everything
seems to work fine.

rbrad@vega:~$ uname -a
Linux vega 2.4.20-pa28 #1 Sun Mar 16 10:13:17 MST 2003 parisc unknown
unknown GNU/Linux
rbrad@vega:~$ /lib/ld.so.1 --verify /bin/sh
rbrad@vega:~$


This box is running a 32-bit kernel and is running almost TOB unstable.

Installed libc6 is:
ii  libc6          2.3.1-14       GNU C Library: Shared libraries and
Timezone

Installed bash is:
ii  bash           2.05b-7        The GNU Bourne Again SHell


What is _really_ strange is that the system works ... even even though
/lib/ld.so.1 is throwing that assert.  I did not notice this
error until trying to run the ltp tests.

Any thoughts?

Thanks,

- Ryan

-- 
Ryan Bradetich <rbradetich@uswest.net>



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From: grundler@dsl2.external.hp.com (Grant Grundler)
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Subject: Re: [parisc-linux] FC driver?
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On Mon, Mar 17, 2003 at 07:52:35AM -0800, Randolph Chung wrote:
> this is the "right" driver, but it doesn't work on parisc. Grant has
> poked at it a little bit but afaik it still doesn't work.

I was trying to get XL2 HBAs working - and at least now I can load
and unload the driver on parisc. But XL2 is still not working.
I thought 5100/5166 (TL) HBAs did work.

> The driver is
> not that well written either, so that doesn't help either :(

If someone wants to take over maintaining cpqfc driver, I suspect
that would be a welcome request. Please let me know and I'll
forward to the right people in HP. (I've had this conversation
with the current maintainers already.)

grant


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On Mon, 2003-03-17 at 09:14, Grant Grundler wrote:
> On Mon, Mar 17, 2003 at 12:18:01PM +0100, Jan-Benedict Glaw wrote:
> > So your device is called "PCI_DEVICE_ID_HP_TACHYON".
> 
> Please don't ever call a TachLite (TL) devices "Tachyon".
> Tachyon (5000) was the first FC chip made by HP (now Agilent)
> and was a nightmare to program. TachLite  (5100/5166)
> had a simpler programming model and fewer bugs. TachLite XL2
> chips (5200) use the same programming model.
> 
> 
> > See, it's quite easy to see if a PCI card seems to be supported:-)
> 
> Yes, but sometimes it's easier to start with "lspci -n" output.
> 
> cpqfc code suggests it supports all Tachlite HBAs.
> But it depends on GBIC/HBA configuration and HPUX folks haven't
> been interested in making cpqfc work with their XL2 HBA.
> Jes Sorensen/Martin Petersen did get older (5100/5166) TL HBAs
> from HP working with cpqfc driver.

On parisc?  I've had trouble with it running on my C200.  Maybe
it is time to try it again.  I know Jes and Martin worked on it 
for i386..

Thanks,

- Ryan

> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
-- 
Ryan Bradetich <rbradetich@uswest.net>



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On Mon, Mar 17, 2003 at 09:19:14AM -0700, Ryan Bradetich wrote:
> Linux vega 2.5.64-pa5 #3 Sun Mar 16 23:44:38 MST 2003 parisc unknown
> unknown GNU/Linux
> rbrad@vega:~$ /lib/ld.so.1 --verify /bin/sh
> Inconsistency detected by ld.so: rtld.c: 879: dl_main: Assertion
> `_rtld_local._dl_rtld_map.l_libname' failed!
> rbrad@vega:~$
> 
> With the same system, but running the 2.4 kernel .... everything
> seems to work fine.

Hmm.  Back in 2.4, we had an RGH_HACK in fs/binfmt_elf.c which (iirc)
was introduced to stop this error.  I'm not sure we ever tracked down the
problem this was solving, but we thought it'd gone away with recent glibc.

I guess not.  I'm reluctant to bring the RGH_HACK forwards... but if
someone did, it might help track down where this problem really is.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Mon, 2003-03-17 09:21:05 -0700, Grant Grundler <grundler@dsl2.external.h=
p.com>
wrote in message <20030317162105.GB31378@dsl2.external.hp.com>:
> On Mon, Mar 17, 2003 at 07:52:35AM -0800, Randolph Chung wrote:
> > The driver is
> > not that well written either, so that doesn't help either :(
>=20
> If someone wants to take over maintaining cpqfc driver, I suspect
> that would be a welcome request. Please let me know and I'll
> forward to the right people in HP. (I've had this conversation
> with the current maintainers already.)

:) Well, I don't have such a board, I don't have FC-HDDs, I don't even
have a 64bit/66MHz box. ...and looking over the code, it's somewhat
cruel:-) All over all scared^H^H^Httered with C++ish comments, silly
VARIABLE NAMES and it is *hugh*. Maintaining it, I suspect, is more like
rewriting it. Well, no hardware, no docs, ...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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>>>>> "Ryan" == Ryan Bradetich <rbradetich@uswest.net> writes:

>> cpqfc code suggests it supports all Tachlite HBAs.  But it depends
>> on GBIC/HBA configuration and HPUX folks haven't been interested in
>> making cpqfc work with their XL2 HBA.  Jes Sorensen/Martin Petersen
>> did get older (5100/5166) TL HBAs from HP working with cpqfc
>> driver.

Ryan> On parisc?  I've had trouble with it running on my C200.  Maybe
Ryan> it is time to try it again.  I know Jes and Martin worked on it
Ryan> for i386..

I got a TL going on x86 way back.  Have not tried it on PA-RISC.

Also, the cpqfc driver could do with a serious cleanup.

I gave up beating it into shape and started working on a new driver.
But I'm swamped elsewhere and haven't touched it for a while.

-- 
Martin K. Petersen      http://mkp.net/



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On Mon, Mar 17, 2003 at 09:22:23AM -0700, Ryan Bradetich wrote:
> On parisc?  I've had trouble with it running on my C200.  Maybe
> it is time to try it again.  I know Jes and Martin worked on it 
> for i386..

my bad - you are right. It still doesn' work. Details follow.

I just tried it again with:
20:00.0 PCI bridge: Digital Equipment Corporation DECchip 21154 (rev 02)
21:04.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel
Host Adapter (rev 0a)
21:05.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel
Host Adapter (rev 0a)

20:00.0 Class 0604: 1011:0026 (rev 02)
21:04.0 Class 0c04: 103c:1028 (rev 0a)
21:05.0 Class 0c04: 103c:1028 (rev 0a)

cpqfc driver loads but still finds no devices on the FC hub.

gsyprf11:~# modprobe cpqfc
 scsi_register allocating 6640 bytes for FC HBA
  HBA found!
  HostAdapter->PciDev->irq = 256
  PciDev->baseaddress[0]= 0
  PciDev->baseaddress[1]= 20000
  PciDev->baseaddress[2]= 20100
  PciDev->baseaddress[3]= fffffffffa040000
  cpqfcHBAdata->fcChip.Registers. :
    IOBaseL = 20000
    IOBaseU = 20100
 ioremap'd Membase: fffffffffa040000
    SFQconsumerIndex.address = fffffffffa040058
    ERQproducerIndex.address = fffffffffa040008
    TYconfig.address = fffffffffa040184
    FMconfig.address = fffffffffa0401c0
    FMcontrol.address = fffffffffa0401c4
  Requesting 255 I/O addresses @ 20000
  Requesting 255 I/O addresses @ 20100
 ResetTachyon
  HBA Tachyon RevId 2.2
Allocating 129024 for 576 Exchanges @ 00000000355e0000
Allocating 112904 for LinkQ @ 00000000355c0000 (576 elements)
Allocating 106504 for TachSEST for 512 Exchanges
  cpqfcTS: writing IMQ BASE 7580000h    PI 7584000h
  cpqfcTS: SEST 000000004be80000(virt): Wrote base 75A0000h @
fffffffffa040140
cpqfcTS: NVRAM read failed
 WARNING! HBA NVRAM WWN read failed - make alias
  WWN 51044F1044556677
  Waiting for broken Brocade switch...
 scsi_register allocating 6640 bytes for FC HBA
  HBA found!
  HostAdapter->PciDev->irq = 257
  PciDev->baseaddress[0]= 0
  PciDev->baseaddress[1]= 20200
  PciDev->baseaddress[2]= 20300
  PciDev->baseaddress[3]= fffffffffa041000
  cpqfcHBAdata->fcChip.Registers. :
    IOBaseL = 20200
    IOBaseU = 20300
 ioremap'd Membase: fffffffffa041000
    SFQconsumerIndex.address = fffffffffa041058
    ERQproducerIndex.address = fffffffffa041008
    TYconfig.address = fffffffffa041184
    FMconfig.address = fffffffffa0411c0
    FMcontrol.address = fffffffffa0411c4
  Requesting 255 I/O addresses @ 20200
  Requesting 255 I/O addresses @ 20300
 ResetTachyon
  HBA Tachyon RevId 2.2
Allocating 129024 for 576 Exchanges @ 000000004be60000
Allocating 112904 for LinkQ @ 000000004be40000 (576 elements)
Allocating 106504 for TachSEST for 512 Exchanges
  cpqfcTS: writing IMQ BASE 7800000h    PI 7804000h
  cpqfcTS: SEST 000000004be20000(virt): Wrote base 7820000h @
fffffffffa041140
cpqfcTS: NVRAM read failed
 WARNING! HBA NVRAM WWN read failed - make alias
  WWN 510450E844556677
  Waiting for broken Brocade switch...
scsi6 : Agilent FC HBA, Tachyon XL2 HPFC-5200B/2.2: WWN 51044F1044556677
 on PCI bus 33 device 0x1028 irq 256 IObaseL 0x20000, MEMBASE 0xfa040000
PCI bus width 64 bits, bus speed 66 MHz
FCP-SCSI Driver v2.1.1
GBIC detected: Unknown.  LPSM 0h Monitor
scsi7 : Agilent FC HBA, Tachyon XL2 HPFC-5200B/2.2: WWN 510450E844556677
 on PCI bus 33 device 0x1028 irq 257 IObaseL 0x20200, MEMBASE 0xfa041000
PCI bus width 64 bits, bus speed 66 MHz
FCP-SCSI Driver v2.1.1
GBIC detected: Short-wave.  LPSM 0h Monitor
gsyprf11:~#

The "NVRAM read failed" msg seems to be a problem still.
Fixing that would be a next step. The GBIC detection is the
next problem that would need work. Looks like a timing problem
since the first GBIC was not detected and the second one was.

grant


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Good call willy!


> Hmm.  Back in 2.4, we had an RGH_HACK in fs/binfmt_elf.c which (iirc)
> was introduced to stop this error.  I'm not sure we ever tracked down the
> problem this was solving, but we thought it'd gone away with recent glibc.
> 
> I guess not.  I'm reluctant to bring the RGH_HACK forwards... but if
> someone did, it might help track down where this problem really is.

#undef the RGH_FIX in fs/binfmt_elf.c produces the same behaviour
on 2.4 as well.

Hopefully this will give someone a hint on the real problem.

Thanks!

- Ryan

-- 
Ryan Bradetich <rbradetich@uswest.net>



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Subject: [parisc-linux] Re: c++/10091: [3.3 regression] [parisc] ICE in cp_expr_size, at cp/cp-lang.c:307
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Synopsis: [3.3 regression] [parisc] ICE in cp_expr_size, at cp/cp-lang.c:307

Responsible-Changed-From-To: unassigned->jason
Responsible-Changed-By: jason
Responsible-Changed-When: Mon Mar 17 18:41:17 2003
Responsible-Changed-Why:
    got it

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10091


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Subject: [parisc-linux] Re: c++/10091: [3.3 regression] [parisc] ICE in cp_expr_size, at cp/cp-lang.c:307
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Synopsis: [3.3 regression] [parisc] ICE in cp_expr_size, at cp/cp-lang.c:307

State-Changed-From-To: open->analyzed
State-Changed-By: jason
State-Changed-When: Mon Mar 17 23:33:58 2003
State-Changed-Why:
    The problem is that the #pragma pack means that _GEIdx::addr
    might not have the usual alignment of an ftn_addr, so we
    can't just take the address of current.addr in order to bind
    it to a reference.  expand_expr knows this, and tries to
    make a bitwise copy and take the address of that.  But since
    ftn_addr has a copy constructor, we can't make bitwise
    copies, so we abort.
    
    Now, in your particular testcase ftn_golded_nodelist_index::current
    does in fact have enough alignment for a ftn_addr, so we'd
    be OK just using the address of current.addr (it would be
    different if either of the latter two classes began with,
    say, a char field).  But the backend doesn't currently track
    alignment info from enclosing classes, so we are conservative
    and fail.
    
    We used to err in the other direction: taking the address of
    a packed field would lose any information about it possibly
    having less alignment, and things trying to use the resulting
    pointer could get a bus error.  See g++.dg/other/packed1.C.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10091


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Subject: [parisc-linux] Re: c++/10091: [3.3 regression] [parisc] ICE in cp_expr_size, at cp/cp-lang.c:307
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Synopsis: [3.3 regression] [parisc] ICE in cp_expr_size, at cp/cp-lang.c:307

State-Changed-From-To: analyzed->closed
State-Changed-By: jason
State-Changed-When: Tue Mar 18 04:37:24 2003
State-Changed-Why:
    OK, I was wrong; the backend does track alignment info, the
    problem was the frontend tacking on a INDIRECT_REF/NOP_EXPR/ADDR_EXPR
    sequence between the COMPONENT_REFs.  Fixed.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10091


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>Submitter-Id:	net
>Originator:	Randolph Chung <tausq@debian.org>
>Organization:	Debian
>Confidential:	no
>Synopsis:	[3.3 regression] [parisc-linux] ICE when building lesstif1 at -O1/O2
>Severity:	serious
>Priority:	medium
>Category:	optimization
>Class:		ice-on-legal-code
>Release:	3.3 20030309 (Debian prerelease) (Debian testing/unstable)
>Environment:
System: Linux gsyprf11.external.hp.com 2.4.20-pa18-UP #1 Sat Jan 4 22:06:52 PST 2003 parisc64 unknown unknown GNU/Linux
Architecture: parisc64

	<machine, os, target, libraries (multiple lines)>
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc hppa-linux
>Description:
Test program below is extracted from lesstif1 (v0.93.36). 
Compiles fine without -O, but with -O1 or -O2 it aborts. The code 
compiles fine with gcc-3.2.3

bash-2.05b# gcc -O1 -v -c bug.c
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.3 20030309 (Debian prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.3/cc1 -quiet -v -D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=0 bug.c -quiet -dumpbase bug.c -auxbase bug -O1 -version -o /tmp/ccrpBE2v.s
GNU C version 3.3 20030309 (Debian prerelease) (hppa-linux)
        compiled by GNU C version 3.3 20030309 (Debian prerelease).
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
ignoring nonexistent directory "/usr/hppa-linux/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include
 /usr/lib/gcc-lib/hppa-linux/3.3/include
 /usr/include
End of search list.
bug.c: In function `get_modifier_mapping':
bug.c:44: internal compiler error: Aborted
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.


>How-To-Repeat:
	gcc -O1 -c bug.c

------- 8< bug.c 8<------
typedef struct {
	int max_keypermod;
} XModifierKeymap;

#define XK_Meta_L               0xFFE7  /* Left meta */
#define XK_Meta_R               0xFFE8  /* Right meta */
#define XK_Alt_L                0xFFE9  /* Left alt */
#define XK_Alt_R                0xFFEA  /* Right alt */
#define Mod1Mask            (1<<3)

unsigned int blah(void);

static int
get_modifier_mapping(void *Dsp)
{
    XModifierKeymap *mk;
    unsigned int ModifierKeysym;
    int ModifierSet, SetIndex, SetSize;
    int AltMask = Mod1Mask;

    SetSize = mk->max_keypermod;

    for (ModifierSet = 0; ModifierSet < 8; ModifierSet++)
    {
	for (SetIndex = 0; SetIndex < SetSize; SetIndex++)
	{
	    ModifierKeysym = blah();
	    switch (ModifierKeysym)
	    {
	    case XK_Meta_L:
	    case XK_Meta_R:
		AltMask = 1L << ModifierSet;
		goto bailout;
	    case XK_Alt_L:
	    case XK_Alt_R:
		AltMask = 1L << ModifierSet;
		goto bailout;
	    }
	}
    }

  bailout:
    return AltMask;
}
------- 8< bug.c 8<------

>Fix:
	unknown


From - Thu Nov 08 21:27:08 2018
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From: grundler@dsl2.external.hp.com (Grant Grundler)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] FWD: PCI Patches update
Date: Mon, 17 Mar 2003 23:22:33 -0700
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Hi all,

I got email from Ivan Kokshaysky describing recent changes in 2.5 PCI
support and realized I should document one of the outstanding
"bugs" with PCI resource management under PARISC.

enjoy!
grant

---- Forwarded message from Grant Grundler <grundler@dsl2.external.hp.com> -----
On Mon, Mar 17, 2003 at 11:33:12PM +0300, Ivan Kokshaysky wrote:
> - windows overlapping with something else.

On parisc, this is one of the problems I've dodged.
I'm not looking for a solution right now - but if you know the
obvious answer, please tell me.  I just want to outline the problem.

The PCI controller (lba_pci.c) on newer PARISC machines can support
two MMIO ranges. The "Distributed" range is a "fixed" size and base
(1/8th of whatever the parent IO Controller (SBA) has).  The second
"Directed" Range can use any address otherwise not assigned to PCI
devices and directed to any PCI controller under the same SBA.

PARISC lba_pci.c currently only advertises Distributed ranges
and pretends Directed ranges don't exist. Things still work,
but the resource accounting in /proc/iomem is inaccurate.

Since Directed Ranges have precedence in the MMIO address routing, they
can overlap with Distributed ranges. Worse, The SBA can assign "duplicate"
MMIO address ranges by routing "unused" address space to a Directed range
under a different PCI controller.  I think both are very ugly scenarios
and will need alot of code to detect/handle properly.

Each Distributed Range is typically only 16MB in size.
Consumers of Directed Ranges are things like graphics cards or X.25
cards which want 16MB or greater in a single BAR.
Eg /proc/iomem on a C3000 running 2.4.20 says:
f0000000-f0ffffff : LBA PCI LMMIO
  f05d0000-f05d0000 : lcd_data
  f05d0008-f05d0008 : lcd_cmd
f1000000-f1ffffff : LBA PCI LMMIO
f4000000-f4ffffff : LBA PCI LMMIO
  f4007000-f4007fff : usb-ohci
  f4008000-f40083ff : tulip
  f4900000-f490007f : tulip
  f4901000-f490107f : tulip
  f4902000-f490207f : tulip
  f4903000-f490307f : tulip
f6000000-f6ffffff : LBA PCI LMMIO
  f6000000-f600ffff : tg3
fa100000-fa4fffff : stifb mmio
fb000000-fbffffff : stifb
...

In the same machine (C3000) as the above, lspci says:
...
01:04.0 PCI bridge: Digital Equipment Corporation DECchip 21152 (rev 03)
(prog-if 00 [Normal decode])
        Flags: bus master, medium devsel, latency 255
	Bus: primary=01, secondary=02, subordinate=02, sec-latency=255
	I/O behind bridge: 00003000-00003fff
	Memory behind bridge: f4900000-f49fffff
	Prefetchable memory behind bridge: 00000000f0100000-00000000f0100000
	Capabilities: <available only to root>
...
03:01.1 SCSI storage controller: LSI Logic / Symbios Logic 53c1010 66MHz Ultra3 SCSI Adapter (rev 01)
	Subsystem: Hewlett-Packard Company: Unknown device 1340
	Flags: bus master, 66Mhz, medium devsel, latency 255, IRQ 163
	I/O ports at 28000 [size=256]
	Memory at f6014000 (64-bit, non-prefetchable) [size=1K]
	Memory at f6010000 (64-bit, non-prefetchable) [size=8K]
	Expansion ROM at f6020000 [disabled] [size=128K]
	Capabilities: <available only to root>

03:03.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5703 Gigabit Ethernet (rev 02)
        Subsystem: Broadcom Corporation NetXtreme BCM5703 1000Base-T
	Flags: bus master, 66Mhz, medium devsel, latency 248, IRQ 160
	Memory at f6000000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <available only to root>

04:02.0 Display controller: Hewlett-Packard Company A4977A Visualize EG
(rev 03)
        Flags: 66Mhz, medium devsel
	Memory at fa000000 (32-bit, non-prefetchable) [size=32M]
	Expansion ROM at f7000000 [disabled] [size=64K]

[ I now see one additional bugs *sigh*: PCI-PCI bridge resources are
not properly accounted (4-port Tulip) card. I'll have to fix that. ]

sym53c8xx_2 driver is using IO port space and thus won't get reported
in /proc/iomem.

The "stifb" driver claims the upper 16MB of the 32MB BAR and it's all
routed to PCI Controller for slot 2 (PCI Bus 4). Since no other devices
share that PCI controller, I'm pretty sure the same PCI Controller also
gets 0xf100000 range. Add a second gfx card and it's gets uglier.
I watched Thomas Boegendorf have fun at LinuxTag by putting 4
similar "Vis-EG" cards in one B2600 and run xinerama. I now
wish I had captured the /proc/iomem and lspci -v output for
that one!

Anyway, I hope that was an interesting diversion.

cheers,
grant

----- End forwarded message -----


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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] /lib/ld.so.1 (glibc) issues on 2.5 kernel??
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I have spend some more time tracking this problem down.

I have found the offending line in the kernel that causes
this problem, the rest of the RGH_FIX can be eliminated.

The symptom is with this line: 
	NEW_AUX_ENT(AT_ENTRY, exec->e_entry);

in fs/binfmt_elf.c:create_elf_tables().

If the that line is executed when the 
interpreter_type == INTERPRETER_NONE, the error shows up when
/lib/ld.so.1 is executed.  This line is fine when when the
interpreter_type == INTERPRTER_ELF ... which explains why
the system runs normally, and the error only manifests itself
when /lib/ld.so.1 is executed by hand.  (the /lib/ld.so.1 library 
does not set a PT_INTERP, so the interpreter is not set, where as
if a binary is executed, the interpreter is set to ELF).


The assert caused by /lib/ld.so.1 is caused by this line
in rtld.c:

	assert (GL(dl_rtld_map).l_libname); /* How else did we get here?  */

This assert is in the else clause of this if statement:


  if (! GL(dl_rtld_map).l_libname && GL(dl_rtld_map).l_name)


The whole purpose of this if statment, according to the comments,
is to deal with this senario, where the library was invoked directly,
and the PT_INTERP was not set.


I am rebuilding glibc from source on my C200 now (i.e. this will
probably take a while :)) and I will continue debugging. I just wanted
to give a status update in case someone else has an idea, or was working
on it.

Thanks,

- Ryan


-- 
Ryan Bradetich <rbradetich@uswest.net>



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On Mon, 2003-03-17 17:34:30 +0100, Jan-Benedict Glaw <jbglaw@lug-owl.de>
wrote in message <20030317163430.GI17073@lug-owl.de>:
> On Mon, 2003-03-17 09:21:05 -0700, Grant Grundler <grundler@dsl2.external=
.hp.com>
> wrote in message <20030317162105.GB31378@dsl2.external.hp.com>:
> > On Mon, Mar 17, 2003 at 07:52:35AM -0800, Randolph Chung wrote:
> > > The driver is
> > > not that well written either, so that doesn't help either :(
> >=20
> > If someone wants to take over maintaining cpqfc driver, I suspect
> > that would be a welcome request. Please let me know and I'll
> > forward to the right people in HP. (I've had this conversation
> > with the current maintainers already.)
>=20
> :) Well, I don't have such a board, I don't have FC-HDDs, I don't even
> have a 64bit/66MHz box. ...and looking over the code, it's somewhat

Oh, I need to correct this. My Athlon does have 64bit PCI slots. Still,
no such PCI card, no FC hub/HDDs...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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Subject: Re: [parisc-linux] FWD: PCI Patches update
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Xref: news.gmane.org gmane.linux.ports.parisc:17973

On Mon, Mar 17, 2003 at 11:22:33PM -0700, Grant Grundler wrote:
> On parisc, this is one of the problems I've dodged.
> I'm not looking for a solution right now - but if you know the
> obvious answer, please tell me.  I just want to outline the problem.

Certainly!  ;-)

> The PCI controller (lba_pci.c) on newer PARISC machines can support
> two MMIO ranges. The "Distributed" range is a "fixed" size and base
> (1/8th of whatever the parent IO Controller (SBA) has).  The second
> "Directed" Range can use any address otherwise not assigned to PCI
> devices and directed to any PCI controller under the same SBA.

OK.

> PARISC lba_pci.c currently only advertises Distributed ranges
> and pretends Directed ranges don't exist. Things still work,
> but the resource accounting in /proc/iomem is inaccurate.

We can fix that!  ;-)

> Since Directed Ranges have precedence in the MMIO address routing, they
> can overlap with Distributed ranges. Worse, The SBA can assign "duplicate"
> MMIO address ranges by routing "unused" address space to a Directed range
> under a different PCI controller.  I think both are very ugly scenarios
> and will need alot of code to detect/handle properly.

I don't think it's such a big problem.  Well, I wouldn't, would I?  ;-)

> Each Distributed Range is typically only 16MB in size.
> Consumers of Directed Ranges are things like graphics cards or X.25
> cards which want 16MB or greater in a single BAR.
> Eg /proc/iomem on a C3000 running 2.4.20 says:
> f0000000-f0ffffff : LBA PCI LMMIO
>   f05d0000-f05d0000 : lcd_data
>   f05d0008-f05d0008 : lcd_cmd
> f1000000-f1ffffff : LBA PCI LMMIO
> f4000000-f4ffffff : LBA PCI LMMIO
>   f4007000-f4007fff : usb-ohci
>   f4008000-f40083ff : tulip
>   f4900000-f490007f : tulip
>   f4901000-f490107f : tulip
>   f4902000-f490207f : tulip
>   f4903000-f490307f : tulip
> f6000000-f6ffffff : LBA PCI LMMIO
>   f6000000-f600ffff : tg3
> fa100000-fa4fffff : stifb mmio
> fb000000-fbffffff : stifb
> ...

Thanks for posting the example, it makes life much easier.  To take some
experience from ccio-based systems, we might favour a /proc/iomem which
ends up looking something like this:

f0000000-f0ffffff : PCI bus [10/0/]
  f05d0000-f05d0000 : lcd_data
  f05d0008-f05d0008 : lcd_cmd
f1000000-f1ffffff : PCI bus [10/1/]
f4000000-f4ffffff : PCI bus [10/2/]
  f4007000-f4007fff : usb-ohci
  f4008000-f40083ff : tulip
  f4900000-f490007f : tulip
  f4901000-f490107f : tulip
  f4902000-f490207f : tulip 
  f4903000-f490307f : tulip
f6000000-f6ffffff : PCI bus [10/4/]
  f6000000-f600ffff : tg3
fa000000-fbffffff : PCI bus [10/1/]
  fa100000-fa4fffff : stifb mmio
  fb000000-fbffffff : stifb

So, how to accomplish this?  You're right it's going to be a little more
tricky than before since we may discover overlapping ranges in any order
and the directed range always takes priority over the distributed range.

Calling __request_resource() will return the address of a conflicting
resource (if there is one).  Only snag is that it's static, but I'm
sure no-one will scream too loudly if we unstatic it.  So if we're
requesting a directed range, we'll tweak the existing range to move it
out of our way.  If we're requesting a distributed range, we'll shrink
our range to avoid colliding.  In either case, we will request again.

> [ I now see one additional bugs *sigh*: PCI-PCI bridge resources are
> not properly accounted (4-port Tulip) card. I'll have to fix that. ]

iomem isn't a device hierarchy... it's not necessary to put _everything_
in.  Having said that, I think it'd be kind of nice to have it.

> The "stifb" driver claims the upper 16MB of the 32MB BAR and it's all
> routed to PCI Controller for slot 2 (PCI Bus 4). Since no other devices
> share that PCI controller, I'm pretty sure the same PCI Controller also
> gets 0xf100000 range. Add a second gfx card and it's gets uglier.
> I watched Thomas Boegendorf have fun at LinuxTag by putting 4
> similar "Vis-EG" cards in one B2600 and run xinerama. I now
> wish I had captured the /proc/iomem and lspci -v output for
> that one!

Hmm.. if I remember rightly, we put a large number of gfx cards in the
L2000 in Fort Collins once... wonder if they're still in there.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: [parisc-linux] squid pb with glibc-2.3.1
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Xref: news.gmane.org gmane.linux.ports.parisc:17974

Hi all,

I try, without success :( , to do a test case to reproduce the problem I
encountered with squid when glibc was updated to 2.3.1.

Fortunately I steel have a testing system with glibc 2.1 and I can so compare
straces:

squid-2.4.7 && glibc-2.2.5-14.3
...
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\37"..., 1024)
= 1024
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 1392404, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40170000
mprotect(0x402a7000, 118548, PROT_NONE) = 0
mmap(0x402b6000, 45056, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
3, 0x136000) = 0x402b6000
mmap(0x402c1000, 12052, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS,
-1, 0) = 0x402c1000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x4001c000
munmap(0x40018000, 13557)               = 0
getpid()                                = 10655
rt_sigaction(SIGRTMIN, {0x400910fe, [], 0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x40091106, [], 0}, NULL, 8) = 0
rt_sigaction(SIGRT_2, {0x4009110e, [], 0}, NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [RTMIN], NULL, 8) = 0
_sysctl(0xfaf00a50, 0, 0, 0xfaf00a78, 0) = 0
umask(07)                               = 022
umask(022)                              = 07
time(NULL)                              = 1047922670
gettimeofday({1047922670, 112579}, NULL) = 0
brk(0)                                  = 0x221000
brk(0x221030)                           = 0x221030
brk(0x222000)                           = 0x222000
brk(0x223000)                           = 0x223000
brk(0x224000)                           = 0x224000
open("/etc/squid.conf", O_RDONLY)       = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x40018000
...


squid-2.4.7 && glibc-2.3.1
...
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\f"..., 1024)
= 102
4
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 1412104, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40224000
mprotect(0x40363000, 105480, PROT_NONE) = 0
mmap(0x40372000, 36864, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
3
, 0x13e000) = 0x40372000
mmap(0x4037b000, 7176, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP
_ANONYMOUS, -1, 0) = 0x4037b000
close(3)                                = 0
munmap(0x40017000, 13557)               = 0
getpid()                                = 23706
rt_sigaction(SIGRTMIN, {0x400865d6, [], 0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x400865de, [], 0}, NULL, 8) = 0
rt_sigaction(SIGRT_2, {0x400865e6, [], 0}, NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [RTMIN], NULL, 8) = 0
_sysctl(0xfaf00988, 0, 0, 0xfaf009b0, 0) = 0
sched_yield()                           = 0
sched_yield()                           = 0
.
.
.
.

squid loop here

Is the problem is in _systcl() or elsewhere?
How may I analyse further this pb (for my limited understanding, I do not
found enough information on _sysctl() in man)?

Thanks for additional help,
    Joel


PS: the two system are b180L running the same kernel 2.4.20-pa27. The first
one is a testing debian before glibc upgrade, the second one just after the
glibc upgrade.

---------------------------------
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According to the folk wisdom around CVS, long-lived branches make
operations slower.  Here's some evidence:

http://mail.gnu.org/archive/html/info-cvs/2001-08/msg00939.html
http://sources.redhat.com/ml/gdb/2003-03/msg00091.html

>From this point of view, our CVS tree is practically pessimal.  We have
two long-lived, regularly-updated branches (1.1.2. and 1.).  This may
explain why CVS is taking a long time to do simple stuff that used to
not take very long at all.

I don't think that changing our linux-2.5 tree at this point is a
great idea.  Let's soldier on with it until 2.6 comes out, but I've been
thinking about a new design for our linux-2.6 tree.  Feedback extremely
welcome since I'm so far from being an SCM guru it isn't even funny.

The inspiration for this is "Wow.  Our diff vs Linus is really small now."
It's 220k; 170k of that in new files.  So our model is really "Here's a
small patch to go on top of Linus' tree."  We're no longer doing major
development in our tree and we're now able to fold changes back into
Linus' tree fairly quickly.

So how about this model...

1. -> linus
1.1 -> LINUS_260
1.2 -> LINUS_261
1.2.1 -> parisc_261
1.2.1.1 -> CVS261_PA1
1.2.1.2 -> CVS261_PA2
...
1.3 -> LINUS_262
1.3.1 -> parisc_262
1.3.1.1 -> CVS262_PA1

OK, this model clearly fits CVS' needs much better.  How about ours?
Well, it sucks that you're always developing on a branch.  It sucks for
people who're used to doing 'cvs up -A' to get to the trunk, because
they now get Linus instead of us.  It also sucks that you stay on
parisc_261 when you type "cvs up", so you have to explictly say "cvs
up -rparisc_262".

However, it doesn't have the suckitude of vendor branches, and it allows
us to reasonably use cvs diff -rlinus.  Choose your suck.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: RE: [parisc-linux] squid pb with glibc-2.3.1
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Xref: news.gmane.org gmane.linux.ports.parisc:17976

Sorry all,

I remember now that the actual pb was in mallopt() stuff at the beginning:
edit autoconf.h and undef HAVE_MALLOPT to recompile manually and it works.

Very sorry for confusion,
    Joel

>-- Original Message --
>From: "Joel Soete" <jsoe0708@tiscali.be>
>To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] squid pb with glibc-2.3.1
>Date: Tue, 18 Mar 2003 15:11:18 +0100
>
>
>Hi all,
>
>I try, without success :( , to do a test case to reproduce the problem I
>encountered with squid when glibc was updated to 2.3.1.
>
>Fortunately I steel have a testing system with glibc 2.1 and I can so compare
>straces:
>
>squid-2.4.7 && glibc-2.2.5-14.3
>...
>close(3)                                = 0
>open("/lib/libc.so.6", O_RDONLY)        = 3
>read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\37"..., 1024)
>= 1024
>fstat64(3, {st_mode=0, st_size=0, ...}) = 0
>mmap(NULL, 1392404, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40170000
>mprotect(0x402a7000, 118548, PROT_NONE) = 0
>mmap(0x402b6000, 45056, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
>3, 0x136000) = 0x402b6000
>mmap(0x402c1000, 12052, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS,
>-1, 0) = 0x402c1000
>close(3)                                = 0
>mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
>= 0x4001c000
>munmap(0x40018000, 13557)               = 0
>getpid()                                = 10655
>rt_sigaction(SIGRTMIN, {0x400910fe, [], 0}, NULL, 8) = 0
>rt_sigaction(SIGRT_1, {0x40091106, [], 0}, NULL, 8) = 0
>rt_sigaction(SIGRT_2, {0x4009110e, [], 0}, NULL, 8) = 0
>rt_sigprocmask(SIG_BLOCK, [RTMIN], NULL, 8) = 0
>_sysctl(0xfaf00a50, 0, 0, 0xfaf00a78, 0) = 0
>umask(07)                               = 022
>umask(022)                              = 07
>time(NULL)                              = 1047922670
>gettimeofday({1047922670, 112579}, NULL) = 0
>brk(0)                                  = 0x221000
>brk(0x221030)                           = 0x221030
>brk(0x222000)                           = 0x222000
>brk(0x223000)                           = 0x223000
>brk(0x224000)                           = 0x224000
>open("/etc/squid.conf", O_RDONLY)       = 3
>fstat64(3, {st_mode=0, st_size=0, ...}) = 0
>mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
>= 0x40018000
>...
>
>
>squid-2.4.7 && glibc-2.3.1
>...
>close(3)                                = 0
>open("/lib/libc.so.6", O_RDONLY)        = 3
>read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\f"..., 1024)
>= 102
>4
>fstat64(3, {st_mode=0, st_size=0, ...}) = 0
>mmap(NULL, 1412104, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40224000
>mprotect(0x40363000, 105480, PROT_NONE) = 0
>mmap(0x40372000, 36864, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
>3
>, 0x13e000) = 0x40372000
>mmap(0x4037b000, 7176, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP
>_ANONYMOUS, -1, 0) = 0x4037b000
>close(3)                                = 0
>munmap(0x40017000, 13557)               = 0
>getpid()                                = 23706
>rt_sigaction(SIGRTMIN, {0x400865d6, [], 0}, NULL, 8) = 0
>rt_sigaction(SIGRT_1, {0x400865de, [], 0}, NULL, 8) = 0
>rt_sigaction(SIGRT_2, {0x400865e6, [], 0}, NULL, 8) = 0
>rt_sigprocmask(SIG_BLOCK, [RTMIN], NULL, 8) = 0
>_sysctl(0xfaf00988, 0, 0, 0xfaf009b0, 0) = 0
>sched_yield()                           = 0
>sched_yield()                           = 0
>.
>.
>.
>.
>
>squid loop here
>
>Is the problem is in _systcl() or elsewhere?
>How may I analyse further this pb (for my limited understanding, I do not
>found enough information on _sysctl() in man)?
>
>Thanks for additional help,
>    Joel
>
>
>PS: the two system are b180L running the same kernel 2.4.20-pa27. The first
>one is a testing debian before glibc upgrade, the second one just after
the
>glibc upgrade.
>
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From - Thu Nov 08 21:27:08 2018
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To: Matthew Wilcox <willy@debian.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:17977

Le mardi, 18 mar 2003, =E0 15:33 Europe/Paris, Matthew Wilcox a =E9crit =
:
>
> So how about this model...
>
> 1. -> linus
> 1.1 -> LINUS_260
> 1.2 -> LINUS_261
> 1.2.1 -> parisc_261
> 1.2.1.1 -> CVS261_PA1
> 1.2.1.2 -> CVS261_PA2
> ...
> 1.3 -> LINUS_262
> 1.3.1 -> parisc_262
> 1.3.1.1 -> CVS262_PA1
>
> OK, this model clearly fits CVS' needs much better.  How about ours?
> Well, it sucks that you're always developing on a branch.  It sucks =
for
> people who're used to doing 'cvs up -A' to get to the trunk, because
> they now get Linus instead of us.  It also sucks that you stay on
> parisc_261 when you type "cvs up", so you have to explictly say "cvs
> up -rparisc_262".
>
> However, it doesn't have the suckitude of vendor branches, and it=20
> allows
> us to reasonably use cvs diff -rlinus.  Choose your suck.

Well, as a matter of fact, it sucks.

Now, we have several alternatives:
* Use BK.
* Upgrade DSL2 to an arse-kicking Quad-P4Xeon 3 point oh fuckin' six=20
sweet gigahertz.
You won't see anymore lag.

More seriously, I'm no CVS/SCM guru either, and I think that scheme=20
*could* work,
assuming we slap ourselves with some tyrannosaurus' tails to get used=20
to these CVS
habits.

My own concern is that I don't really see the need for a 4th depth=20
level. Stop at
'parisc' branch and work on it seems fairly enough to me, i mean, do we=20=

really want
to be able to retrieve any '-paXX' subversion, which are usually more=20
or less about
changing a dozen of lines in a couple of files in the worse case ?

I'd apply that well known sentence taken from Linux' Coding Styles:
"if you need more than 3 levels of indentation, you're screwed anyway,=20=

and should fix
your program."
I'd say the same goes for CVS branches depth.

I also confess my lack of CVS knowledge, but I like the way gcc/gdb and=20=

other gnu
projects manage their CVS; that is having their trunk on HEAD, and=20
branches
corresponding to releases. I guess this is related to that=20
heavily-sucking-vendor-
branches-stuff-willy-hates, and I'm not even certain we could do the=20
same on a kernel
development tree, so I won't ask more. Just wanted to express my view :)

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=




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Subject: Re: [parisc-linux] FC driver?
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	"Ryan Bradetich" <rbradetich@uswest.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:17978

Hi all,

Thanks a lot for all those info. 

Unfortunately I have no free time to help more on this driver (and also not
enough knowledge for the moment: even thought time and work could solve this
pb :) ).

Joel


>-- Original Message --
>To: Ryan Bradetich <rbradetich@uswest.net>
>Cc: Jan-Benedict Glaw <jbglaw@lug-owl.de>,
>	parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] FC driver?
>From: grundler@dsl2.external.hp.com (Grant Grundler)
>Date: Mon, 17 Mar 2003 09:38:04 -0700
>
>
>On Mon, Mar 17, 2003 at 09:22:23AM -0700, Ryan Bradetich wrote:
>> On parisc?  I've had trouble with it running on my C200.  Maybe
>> it is time to try it again.  I know Jes and Martin worked on it 
>> for i386..
>
>my bad - you are right. It still doesn' work. Details follow.
>
>I just tried it again with:
>20:00.0 PCI bridge: Digital Equipment Corporation DECchip 21154 (rev 02)
>21:04.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel
>Host Adapter (rev 0a)
>21:05.0 Fibre Channel: Hewlett-Packard Company Tach TL Fibre Channel
>Host Adapter (rev 0a)
>
>20:00.0 Class 0604: 1011:0026 (rev 02)
>21:04.0 Class 0c04: 103c:1028 (rev 0a)
>21:05.0 Class 0c04: 103c:1028 (rev 0a)
>
>cpqfc driver loads but still finds no devices on the FC hub.
>
>gsyprf11:~# modprobe cpqfc
> scsi_register allocating 6640 bytes for FC HBA
>  HBA found!
>  HostAdapter->PciDev->irq = 256
>  PciDev->baseaddress[0]= 0
>  PciDev->baseaddress[1]= 20000
>  PciDev->baseaddress[2]= 20100
>  PciDev->baseaddress[3]= fffffffffa040000
>  cpqfcHBAdata->fcChip.Registers. :
>    IOBaseL = 20000
>    IOBaseU = 20100
> ioremap'd Membase: fffffffffa040000
>    SFQconsumerIndex.address = fffffffffa040058
>    ERQproducerIndex.address = fffffffffa040008
>    TYconfig.address = fffffffffa040184
>    FMconfig.address = fffffffffa0401c0
>    FMcontrol.address = fffffffffa0401c4
>  Requesting 255 I/O addresses @ 20000
>  Requesting 255 I/O addresses @ 20100
> ResetTachyon
>  HBA Tachyon RevId 2.2
>Allocating 129024 for 576 Exchanges @ 00000000355e0000
>Allocating 112904 for LinkQ @ 00000000355c0000 (576 elements)
>Allocating 106504 for TachSEST for 512 Exchanges
>  cpqfcTS: writing IMQ BASE 7580000h    PI 7584000h
>  cpqfcTS: SEST 000000004be80000(virt): Wrote base 75A0000h @
>fffffffffa040140
>cpqfcTS: NVRAM read failed
> WARNING! HBA NVRAM WWN read failed - make alias
>  WWN 51044F1044556677
>  Waiting for broken Brocade switch...
> scsi_register allocating 6640 bytes for FC HBA
>  HBA found!
>  HostAdapter->PciDev->irq = 257
>  PciDev->baseaddress[0]= 0
>  PciDev->baseaddress[1]= 20200
>  PciDev->baseaddress[2]= 20300
>  PciDev->baseaddress[3]= fffffffffa041000
>  cpqfcHBAdata->fcChip.Registers. :
>    IOBaseL = 20200
>    IOBaseU = 20300
> ioremap'd Membase: fffffffffa041000
>    SFQconsumerIndex.address = fffffffffa041058
>    ERQproducerIndex.address = fffffffffa041008
>    TYconfig.address = fffffffffa041184
>    FMconfig.address = fffffffffa0411c0
>    FMcontrol.address = fffffffffa0411c4
>  Requesting 255 I/O addresses @ 20200
>  Requesting 255 I/O addresses @ 20300
> ResetTachyon
>  HBA Tachyon RevId 2.2
>Allocating 129024 for 576 Exchanges @ 000000004be60000
>Allocating 112904 for LinkQ @ 000000004be40000 (576 elements)
>Allocating 106504 for TachSEST for 512 Exchanges
>  cpqfcTS: writing IMQ BASE 7800000h    PI 7804000h
>  cpqfcTS: SEST 000000004be20000(virt): Wrote base 7820000h @
>fffffffffa041140
>cpqfcTS: NVRAM read failed
> WARNING! HBA NVRAM WWN read failed - make alias
>  WWN 510450E844556677
>  Waiting for broken Brocade switch...
>scsi6 : Agilent FC HBA, Tachyon XL2 HPFC-5200B/2.2: WWN 51044F1044556677
> on PCI bus 33 device 0x1028 irq 256 IObaseL 0x20000, MEMBASE 0xfa040000
>PCI bus width 64 bits, bus speed 66 MHz
>FCP-SCSI Driver v2.1.1
>GBIC detected: Unknown.  LPSM 0h Monitor
>scsi7 : Agilent FC HBA, Tachyon XL2 HPFC-5200B/2.2: WWN 510450E844556677
> on PCI bus 33 device 0x1028 irq 257 IObaseL 0x20200, MEMBASE 0xfa041000
>PCI bus width 64 bits, bus speed 66 MHz
>FCP-SCSI Driver v2.1.1
>GBIC detected: Short-wave.  LPSM 0h Monitor
>gsyprf11:~#
>
>The "NVRAM read failed" msg seems to be a problem still.
>Fixing that would be a next step. The GBIC detection is the
>next problem that would need work. Looks like a timing problem
>since the first GBIC was not detected and the second one was.
>
>grant
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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On Tue, Mar 18, 2003 at 04:10:44PM +0100, Thibaut VARENE wrote:
> Le mardi, 18 mar 2003,  15:33 Europe/Paris, Matthew Wilcox a crit :
> >1. -> linus
> >1.1 -> LINUS_260
> >1.2 -> LINUS_261
> >1.2.1 -> parisc_261
> >1.2.1.1 -> CVS261_PA1
> >1.2.1.2 -> CVS261_PA2
> >...
> >1.3 -> LINUS_262
> >1.3.1 -> parisc_262
> >1.3.1.1 -> CVS262_PA1
> 
> Well, as a matter of fact, it sucks.
> 
> Now, we have several alternatives:
> * Use BK.

Sorry, I don't think we have the bandwidth to deal with the ensuing
flame-war on parisc-linux ;-)

> * Upgrade DSL2 to an arse-kicking Quad-P4Xeon 3 point oh fuckin' six 
> sweet gigahertz.
> You won't see anymore lag.

Heh.

> More seriously, I'm no CVS/SCM guru either, and I think that scheme 
> *could* work,
> assuming we slap ourselves with some tyrannosaurus' tails to get used 
> to these CVS
> habits.
> 
> My own concern is that I don't really see the need for a 4th depth 
> level. Stop at
> 'parisc' branch and work on it seems fairly enough to me, i mean, do we 
> really want
> to be able to retrieve any '-paXX' subversion, which are usually more 
> or less about
> changing a dozen of lines in a couple of files in the worse case ?

Ah, grasshopper.  This is just your lack of CVS knowledge ;-)

To quote from the CVS info docs:

Branches and revisions
======================

   Ordinarily, a file's revision history is a linear series of
increments (*note Revision numbers::):
            ! 1.1 !----! 1.2 !----! 1.3 !----! 1.4 !----! 1.5 !
   Each branch has a "branch number", consisting of an odd number of
period-separated decimal integers.  The branch number is created by
appending an integer to the revision number where the corresponding
branch forked off.  Having branch numbers allows more than one branch
to be forked off from a certain revision.

   All revisions on a branch have revision numbers formed by appending
an ordinal number to the branch number.  The following figure
illustrates branching with an example.

                                                           +-------------+
                                Branch 1.2.2.3.2 ->        ! 1.2.2.3.2.1 !
                                                         / +-------------+
                                                        /
                                                       /
                      +---------+    +---------+    +---------+
     Branch 1.2.2 -> _! 1.2.2.1 !----! 1.2.2.2 !----! 1.2.2.3 !
                    / +---------+    +---------+    +---------+
                   /
                  /
     +-----+    +-----+    +-----+    +-----+    +-----+
     ! 1.1 !----! 1.2 !----! 1.3 !----! 1.4 !----! 1.5 !  <- The main trunk
     +-----+    +-----+    +-----+    +-----+    +-----+
                     !
                     !
                     !   +---------+    +---------+    +---------+
     Branch 1.2.4 -> +---! 1.2.4.1 !----! 1.2.4.2 !----! 1.2.4.3 !
                         +---------+    +---------+    +---------+

   The exact details of how the branch number is constructed is not
something you normally need to be concerned about, but here is how it
works: When CVS creates a branch number it picks the first unused even
integer, starting with 2.  So when you want to create a branch from
revision 6.4 it will be numbered 6.4.2.  All branch numbers ending in a
zero (such as 6.4.0) are used internally by CVS (*note Magic branch
numbers::).  The branch 1.1.1 has a special meaning.  *Note Tracking
sources::.

... rereading that myself, I realise I made a mistake in my original
exposition.  It should have been:

1. -> linus
1.1 -> LINUS_260
1.2 -> LINUS_261
1.2.2 -> parisc_261
1.2.2.1 -> CVS261_PA1
1.2.2.2 -> CVS261_PA2
...
1.3 -> LINUS_262
1.3.2 -> parisc_262
1.3.2.1 -> CVS262_PA1

One other convention which I believe mang borrowed from mozilla is
the practice of denoting branch tags in lower case and normal tags in
upper case.  I have preserved that here.

> I also confess my lack of CVS knowledge, but I like the way gcc/gdb and 
> other gnu
> projects manage their CVS; that is having their trunk on HEAD, and 

Hold it right there, buddy.  After reading the documentation a few months
ago, Paul and I decided that HEAD was the work of the devil, never
made any sense and nobody was allowed to even say the word any more.
90% of the time people say HEAD, they mean trunk.  What HEAD _actually_
does is take the latest revision of a file on _any_ branch.  Not a smart
idea when you have multiple independent branches.

> branches
> corresponding to releases. I guess this is related to that 
> heavily-sucking-vendor-
> branches-stuff-willy-hates, and I'm not even certain we could do the 
> same on a kernel
> development tree, so I won't ask more. Just wanted to express my view :)

Vendor branches are the aforementioned 1.1.1 branch.  Again, let me quote
from the manual:

   If you modify a program to better fit your site, you probably want
to include your modifications when the next release of the program
arrives.  CVS can help you with this task.

   In the terminology used in CVS, the supplier of the program is
called a "vendor".  The unmodified distribution from the vendor is
checked in on its own branch, the "vendor branch".  CVS reserves branch
1.1.1 for this use.


In fact, the vendor branch is far too magic for us.  It has the bizarre
property that any new files you commit to it will appear on the trunk
without being merged to the trunk.  So we Don't Use Vendor Branches
because it doesn't let us control what's going on properly.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Tue, 2003-03-18 at 09:33, Matthew Wilcox wrote:
> So how about this model...
> 
> 1. -> linus
> 1.1 -> LINUS_260
> 1.2 -> LINUS_261
> 1.2.1 -> parisc_261
> 1.2.1.1 -> CVS261_PA1
> 1.2.1.2 -> CVS261_PA2
> ...
> 1.3 -> LINUS_262
> 1.3.1 -> parisc_262
> 1.3.1.1 -> CVS262_PA1
> 
> OK, this model clearly fits CVS' needs much better.  How about ours?
> Well, it sucks that you're always developing on a branch.  It sucks for
> people who're used to doing 'cvs up -A' to get to the trunk, because
> they now get Linus instead of us.  It also sucks that you stay on
> parisc_261 when you type "cvs up", so you have to explictly say "cvs
> up -rparisc_262".
> 
> However, it doesn't have the suckitude of vendor branches, and it allows
> us to reasonably use cvs diff -rlinus.  Choose your suck.

The proposed model works OK.  I used to use it for my voyager trees when
I had them in CVS instead of BK.  I think your assessment is correct:
it's the least of the evils.

James




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Subject: [parisc-linux] squid pb with glibc-2.3.1 and pthread (pb reproduced now)
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Hi all,

Sorry in advance if am annoying but remember this test case:

(the very begining of squid main())

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

/* getpid(), geteuid()  */
#include <sys/types.h>
#include <unistd.h>

/* setgroups() */
#include <grp.h>

/* mkdir() */
#include <sys/stat.h>
#define MAXPATHLEN 256

/* waitpid() */
#include <sys/wait.h>

/* mallopt() */
#include <malloc.h>

#define SQUID_MAXFD 4096

/* autoconf.h */
/* Define if you have the mallopt function.  */
#define HAVE_MALLOPT 1

/* dlmalloc.c */
#define M_GRAIN   3    /* UNUSED in this malloc */
#define M_MXFAST  1    /* UNUSED in this malloc */

int Squid_MaxFD;		/* SQUID_MAXFD */

FILE *debug_log = NULL;

int
main(int argc, char **argv)
{
    int errcount = 0;
    mode_t oldmask;

    debug_log = stderr;
    if (FD_SETSIZE < Squid_MaxFD)
	Squid_MaxFD = FD_SETSIZE;

    fprintf(stderr, "nb_err: %d\n", errcount);
    /* call mallopt() before anything else */

#ifdef HAVE_MALLOPT
    fprintf(stderr, "  HAVE_MALLOPT \n");
#ifdef M_GRAIN
    /* Round up all sizes to a multiple of this */
    fprintf(stderr, " M_GRAIN seti: %d\n", M_GRAIN);
    mallopt(M_GRAIN, 16);
#endif
#ifdef M_MXFAST
    /* biggest size that is considered a small block */
    fprintf(stderr, " M_MXFAST seti: %d\n", M_MXFAST);
    mallopt(M_MXFAST, 256);
#endif
#ifdef M_NBLKS
    /* allocate this many small blocks at once */
    fprintf(stderr, " M_NBLKS set: %d\n", M_NBLKS);
    mallopt(M_NLBLKS, 32);
#endif
#endif /* HAVE_MALLOPT */

/*
    oldmask = umask(S_IRWXO);
 */

    return 0;
}

At this time I compiled it simply:
gcc -o foo foo.c

run it ./foo and no problem :_((  [very very bad it didn't reproduced the
pb]

Now recompile it with pthread lib (useless for this test case never the less
here usefull):

gcc -o foo -l pthread foo.c

run it ./foo and now it loop :)

(hmm squid can work without maollopt but not pthread afaik)

Joel




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Subject: Re: [parisc-linux] squid pb with glibc-2.3.1 and pthread (pb reproduced now)
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> Now recompile it with pthread lib (useless for this test case never the less
> here usefull):
> 
> gcc -o foo -l pthread foo.c
> 
> run it ./foo and now it loop :)

The pthread library has been broken for some time due to an error in
the locking code.  This might be fixed now.  The fix was part of
Carlos's latest pthread patch.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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>-- Original Message --
>Subject: Re: [parisc-linux] squid pb with glibc-2.3.1 and pthread (pb reproduced
>now)
>To: jsoe0708@tiscali.be (Joel Soete)
>Date: Tue, 18 Mar 2003 11:45:46 -0500 (EST)
>From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>Cc: parisc-linux@lists.parisc-linux.org
>
>
>> Now recompile it with pthread lib (useless for this test case never the
>less
>> here usefull):
>> 
>> gcc -o foo -l pthread foo.c
>> 
>> run it ./foo and now it loop :)
>
>The pthread library has been broken for some time due to an error in
>the locking code.  This might be fixed now.  The fix was part of
>Carlos's latest pthread patch.
>
Hi Dave,

I presume that this patch is not yet into libc6_2.3.1-15 dpkg (I also run
the test case with the same pb on an unstable debian running on b2k); so
my question is: does it exist somewhere a patch against this dpkg src which
I can test?

Thanks again for all,
    Joel


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Subject: Re: [parisc-linux] squid pb with glibc-2.3.1 and pthread (pb reproduced now)
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> I presume that this patch is not yet into libc6_2.3.1-15 dpkg (I also run
> the test case with the same pb on an unstable debian running on b2k); so
> my question is: does it exist somewhere a patch against this dpkg src which
> I can test?

I just checked.  The patch is in -15.  It wasn't in -14.  I haven't tried
-15.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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>> I presume that this patch is not yet into libc6_2.3.1-15 dpkg (I also
run
>> the test case with the same pb on an unstable debian running on b2k);
so
>> my question is: does it exist somewhere a patch against this dpkg src
which
>> I can test?
>
>I just checked.  The patch is in -15.  It wasn't in -14.  I haven't tried
>-15.
>
So it doesn't yet help here. Never the less I think that I reach to produce
enough simple material which Carlos could analyse (in its time) :)

Thanks a lot,
    Joel


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Subject: [parisc-linux] Problem with CDROM
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One of the schools I serve has been donated a HP 9000 DE 220.  I've
figured out the serial console, but I can't find out how to add the CDROM
drive as a boot drive.  The IPL shows the removable media and the Lan
module as bootable.

P0  8/16/5.6  removable media (IPL)
P1  8/16/6.0  LAN module

I don't know how to find the CDROM drive in the SCSI chain.  Looking at
the mailing list archives, I found that it needed to be a HP SCSI CDROM
(it is).  I just don't know how to set up the machine to look for a
bootable CDROM in the drive (I'm planning installing Debian hppa).

Thanks,

Brian Beaver, M.Ed. Technology Coordinator "For every complex problem
DeQueen-Mena Educational Cooperative        there is an answer that is 
305 S. Hornberg Ave., Gillham, AR 71841     clear, simple, and wrong."
870.386.2251  FAX:  870.386.7731            -- H. L. Mencken



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On Tue, Mar 18, 2003 at 12:45:55PM -0600, Brian Beaver wrote:
> One of the schools I serve has been donated a HP 9000 DE 220.  I've

You mean a D220?

> figured out the serial console, but I can't find out how to add the CDROM
> drive as a boot drive.  The IPL shows the removable media and the Lan
> module as bootable.
> 
> P0  8/16/5.6  removable media (IPL)
> P1  8/16/6.0  LAN module

You don't think a CD-ROM drive qualifies as `removable media'?  ;-)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Joel Soete wrote:
> >gcc 3.3 decides to not believe you want this function inlined.  probably
> >the right fix for this is to make this function static inline (you can
> >drop the `__' around inline, it's not necessary).  This is also the case
> >for linux 2.5.
> >
> Right Willy that allow to compile :)
> 
> Unfortunately it failled to boot :_( with following dump:
> Freeing unused kernel memory: 246k freed
> ......
> Submitted to dump_analyser.sh, I obtain:
> 
> IAOQ = 10351b7c
> Func: __canonicalize_funcptr_for_compare, Off: 38, Addr: 0x10351b7c
> 10351b70:       2a 6b 50 00     addil 56800,r19,%r1
> 10351b74:       48 21 0c a8     ldw 654(r1),r1
> 10351b78:       d4 60 1c 1e     depwi 0,31,2,r3
> 10351b7c:       0c 60 10 94     ldw 0(sr0,r3),r20
> 
> GR0 = 00000000
> 
> GR1 = 103eee50
> Func: _GLOBAL_OFFSET_TABLE_, Off: 0, Addr: 0x103eee50
> 
> GR2 = 101342f8
> Func: do_sigaction, Off: a8, Addr: 0x101342f8

I have the same problem with a gcc 3.3 compiled kernel. The kernel itself
completely comes up, and I even can call a static shell (something like
init=/bin/sash), but as soon as glibc is involved, the mentioned crash
occurs. Just to make it clear: I am able to use the builtin functions of
that shell (like ls) and this works.

This is independend from the kernel version (2.4 and 2.5 behave all the
same). The function __canonicalize_funcptr_for_compare seems to be newly
introduced in libgcc with gcc 3.3, and seems to be the cause of this error.


Berthold



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> This is independend from the kernel version (2.4 and 2.5 behave all the
> same). The function __canonicalize_funcptr_for_compare seems to be newly
> introduced in libgcc with gcc 3.3, and seems to be the cause of this error.

Do you have the same problem with a 3.0.4 built kernel?  I have been
using a 3.3 built glibc for some months now.

__canonicalize_funcptr_for_compare depends critically on the
the initial setup of function descriptors by the dynamic loader
and the trampoline in the dynamic loader used to resolve the
address of functions.  This could easily break if someone
unknowing messes with the pa specific parts of the dynamic
loader or the setup of function descriptors.

I'm building glibc-2.3.1-15 and should know soon if something
has changed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> __canonicalize_funcptr_for_compare depends critically on the
> the initial setup of function descriptors by the dynamic loader
> and the trampoline in the dynamic loader used to resolve the
> address of functions.  This could easily break if someone
> unknowing messes with the pa specific parts of the dynamic
> loader or the setup of function descriptors.

um, Dave, we are talking about kernel here right? so no dynamic loader
is involved.

or did i misnuderstand you?
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: grundler@dsl2.external.hp.com (Grant Grundler)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] FWD: PCI Patches update
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To: Matthew Wilcox <willy@debian.org>
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On Tue, Mar 18, 2003 at 02:06:37PM +0000, Matthew Wilcox wrote:
> > PARISC lba_pci.c currently only advertises Distributed ranges
> > and pretends Directed ranges don't exist. Things still work,
> > but the resource accounting in /proc/iomem is inaccurate.
> 
> We can fix that!  ;-)

yes. ivan also sent me some suggestions (which I suspect are for 2.5).
But I still care more about getting 2.4 working right.

> Thanks for posting the example, it makes life much easier.  To take some
> experience from ccio-based systems, we might favour a /proc/iomem which
> ends up looking something like this:
> 
> f0000000-f0ffffff : PCI bus [10/0/]

yes - adding the HW path would be a good idea.
It would help identify which LBA/ropes are involved.
But printing the PCI bus number (in addition?) makes more sense since
I can then correlate iomem output with lspci output.


> So, how to accomplish this?  You're right it's going to be a little more
> tricky than before since we may discover overlapping ranges in any order
> and the directed range always takes priority over the distributed range.

exactly. I'm still thinking about it and my current idea is to
read all SBA ranges first and then let LBA code resolve conflicts
as attemptes to claim ranges. Ivan got me started on that:
| First, you create the set of MMIO resources for SBA which represents
| all MMIO ranges. Then you can either shrink or completely remove
| those of resources for Distributed ranges which overlap with Directed
| range to avoid resource conflicts (this seems to be ok as you says that
| the latter has precedence).

The only problem I'm still looking at is Direct Ranges are described
by three registers which *only* can be read using 64-bit reads.
Tough to do from a (strictly) PA 1.1 built kernel. Still looking
at this issue before moving on.


> Calling __request_resource() will return the address of a conflicting
> resource (if there is one).  Only snag is that it's static, but I'm
> sure no-one will scream too loudly if we unstatic it.  So if we're
> requesting a directed range, we'll tweak the existing range to move it
> out of our way.  If we're requesting a distributed range, we'll shrink
> our range to avoid colliding.  In either case, we will request again.

yes, this is a good idea. I guess I had the same idea but hadn't thought
out how to implement it.

> > [ I now see one additional bugs *sigh*: PCI-PCI bridge resources are
> > not properly accounted (4-port Tulip) card. I'll have to fix that. ]
> 
> iomem isn't a device hierarchy... it's not necessary to put _everything_
> in.  Having said that, I think it'd be kind of nice to have it.

right. /proc/iomem *is* a resource hierarchy and part of the hierarchy
is missing in the case of PCI-PCI bridge.


> Hmm.. if I remember rightly, we put a large number of gfx cards in the
> L2000 in Fort Collins once... wonder if they're still in there.

but L2000 is a PAT PDC box.  We'll get different behavior than B2600.
Unless PAT PDC supports those as boot devices, none of them will get
enabled since lba_pci.c doesn't attempt to program Directed Ranges
(aka lba_dev->elmmio).

Anyway, personally, I don't care about gfx cards working under PAT PDC.
If someone has to make it work, I'm happy to advise and review patches.

thanks,
grant


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
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> um, Dave, we are talking about kernel here right? so no dynamic loader
> is involved.
> 
> or did i misnuderstand you?
> randolph

I believe that we were talking about a problem in in glibc's use
of __canonicalize_funcptr_for_compare with a gcc 3.3 compiled kernel.

In any program with static linkage, the plabel bit shouldn't be
set in a function descriptor pointer.  In that case,
__canonicalize_funcptr_for_compare just returns the function
descriptor pointer.  Things only get hairy when the dynamic loader
is involved and the routine has to figure out the address of
the function fixup in the dynamic loader.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problem with CDROM
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Actually I'm not sure why you get anything that says "removable media" at all.  At the boot handler of the D250 here in the office, the CDROM comes up as "random access media".  That is the same for the hard drives.  Tapes should show up as "sequential access media".  Typically the CDROM shows up when doing a "sea" or "sea ipl" (if it has bootable media in it) by default.  There is nothing you can do to "make" it show up.  If it's not showing up, there may be a hardware issue with it.  It is feasible that the 50 pin cable on the back of the CDROM has come loose.  If you do a regular search from the boot handler and don't see it (usually at address 8/16/5.2) then you will probably have to do some hardware troubleshooting.  The D's aren't the easiest machines to work on due to limited space 
 in that area by the I/O bay.  Anyway if you need further help getting into the box and troubleshooting it, let me know.  I am an HP hardware guy so I could walk you through checking the back of the CDROM.
derek
 Matthew Wilcox <willy@debian.org> wrote:On Tue, Mar 18, 2003 at 12:45:55PM -0600, Brian Beaver wrote:
> One of the schools I serve has been donated a HP 9000 DE 220. I've

You mean a D220?

> figured out the serial console, but I can't find out how to add the CDROM
> drive as a boot drive. The IPL shows the removable media and the Lan
> module as bootable.
> 
> P0 8/16/5.6 removable media (IPL)
> P1 8/16/6.0 LAN module

You don't think a CD-ROM drive qualifies as `removable media'? ;-)

-- 
"It's not Hollywood. War is real, war is primarily not about defeat or
victory, it is about death. I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk
_______________________________________________
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<P>Actually I'm not sure why you get anything that says "removable media" at all.&nbsp; At the boot handler of the D250 here in the office, the CDROM comes up as "random access media".&nbsp; That is the same for the hard drives.&nbsp; Tapes should show up as "sequential access media".&nbsp; Typically the CDROM shows up when doing a "sea" or "sea ipl" (if it has bootable media in it) by default.&nbsp; There is nothing you can do to "make" it show up.&nbsp; If it's not showing up, there may be a hardware issue with it.&nbsp;&nbsp;It is&nbsp;feasible that the&nbsp;50 pin cable on the back of the CDROM has come&nbsp;loose.&nbsp; If you do a regular search from the boot handler and don't see it (usually at address 8/16/5.2) then you will probably have to do some hardware troubleshooting.&nbsp; 
 The D's aren't the easiest machines to work on due to limited space in that area by the I/O bay.&nbsp;&nbsp;Anyway if you need further help getting into the box and troubleshooting it, let me know.&nbsp; I am an HP hardware guy so I could walk you through checking the back of the CDROM.
<P>derek
<P>&nbsp;<B><I>Matthew Wilcox &lt;willy@debian.org&gt;</I></B> wrote:
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">On Tue, Mar 18, 2003 at 12:45:55PM -0600, Brian Beaver wrote:<BR>&gt; One of the schools I serve has been donated a HP 9000 DE 220. I've<BR><BR>You mean a D220?<BR><BR>&gt; figured out the serial console, but I can't find out how to add the CDROM<BR>&gt; drive as a boot drive. The IPL shows the removable media and the Lan<BR>&gt; module as bootable.<BR>&gt; <BR>&gt; P0 8/16/5.6 removable media (IPL)<BR>&gt; P1 8/16/6.0 LAN module<BR><BR>You don't think a CD-ROM drive qualifies as `removable media'? ;-)<BR><BR>-- <BR>"It's not Hollywood. War is real, war is primarily not about defeat or<BR>victory, it is about death. I've seen thousands and thousands of dead bodies.<BR>Do you think I want to have an acad
 emic debate on this subject?" -- Robert Fisk<BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
<a href="http://rd.yahoo.com/platinum/evt=8162/*http://platinum.yahoo.com/splash.html">Yahoo! Platinum</a> - Watch CBS' NCAA March Madness, <a href="http://rd.yahoo.com/platinum/evt=8162/*http://platinum.yahoo.com/splash.html">live on your desktop</a>!
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Subject: Re: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
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> I believe that we were talking about a problem in in glibc's use
> of __canonicalize_funcptr_for_compare with a gcc 3.3 compiled kernel.

Quoting an earlier mail:
> IAOQ = 10351b7c
> Func: __canonicalize_funcptr_for_compare, Off: 38, Addr: 0x10351b7c
> 10351b70:       2a 6b 50 00     addil 56800,r19,%r1
> 10351b74:       48 21 0c a8     ldw 654(r1),r1
> 10351b78:       d4 60 1c 1e     depwi 0,31,2,r3
> 10351b7c:       0c 60 10 94     ldw 0(sr0,r3),r20
>
> GR0 = 00000000
>
> GR1 = 103eee50
> Func: _GLOBAL_OFFSET_TABLE_, Off: 0, Addr: 0x103eee50
>
> GR2 = 101342f8
> Func: do_sigaction, Off: a8, Addr: 0x101342f8

these are definitely kernel addresses....

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> > I believe that we were talking about a problem in in glibc's use
> > of __canonicalize_funcptr_for_compare with a gcc 3.3 compiled kernel.
> 
> Quoting an earlier mail:
> > IAOQ = 10351b7c
> > Func: __canonicalize_funcptr_for_compare, Off: 38, Addr: 0x10351b7c
> > 10351b70:       2a 6b 50 00     addil 56800,r19,%r1
> > 10351b74:       48 21 0c a8     ldw 654(r1),r1
> > 10351b78:       d4 60 1c 1e     depwi 0,31,2,r3
> > 10351b7c:       0c 60 10 94     ldw 0(sr0,r3),r20
> >
> > GR0 = 00000000
> >
> > GR1 = 103eee50
> > Func: _GLOBAL_OFFSET_TABLE_, Off: 0, Addr: 0x103eee50
> >
> > GR2 = 101342f8
> > Func: do_sigaction, Off: a8, Addr: 0x101342f8
> 
> these are definitely kernel addresses....

Right.  I see the code that's causing the problem in kernel/signal.c:

                if (k->sa.sa_handler == SIG_IGN
		    || (k->sa.sa_handler == SIG_DFL


You don't want to canonicalize k->sa.sa_handler here, so a cast to
void * or something is needed.  The PA is the only port that I am
aware of that needs to canonicalize function pointers.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: "FARINATI,LEANDRO (HP-Brazil,ex1)" <leandro.farinati@hp.com>
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Subject: [parisc-linux] 64 bit userspace
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Hi people,

	I would to know, what be missing to finish 64 bit userspace to we
run 64 bit applications?
	If someone could enumerate the missing items and where we could
access this development source, maybe I can give some help in this
development.

	Thanks in advance,

-----------------------------------------------------------------------
              Leandro Marcondes Farinati
                    Software Developer

*   leandro.farinati@hp.com




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------_=_NextPart_001_01C2ED92.CEDAD050
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I have been trying to load some form of Linux onto a HP 9000 H50.  I see
that this is unsupported, but I was wondering if anybody has gotten it
to work.  I get to the point where it says "If this is the last message
you see, you need to switch your console" however I have verified that
the settings are correct for using the serial console.  Any input would
be appreciated.

-Tim 


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<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2653.12">
<TITLE>HP 9000 H50</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2 FACE=3D"Arial">I have been trying to load some form =
of Linux onto a HP 9000 H50.&nbsp; I see that this is unsupported, but =
I was wondering if anybody has gotten it to work.&nbsp; I get to the =
point where it says &quot;If this is the last message you see, you need =
to switch your console&quot; however I have verified that the settings =
are correct for using the serial console.&nbsp; Any input would be =
appreciated.</FONT></P>

<P><FONT SIZE=3D2 FACE=3D"Arial">-Tim</FONT>
</P>

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On Tue, Mar 18, 2003 at 04:10:31PM -0500, Quinn, Timothy wrote:
> I have been trying to load some form of Linux onto a HP 9000 H50.  I see
> that this is unsupported, but I was wondering if anybody has gotten it
> to work.

Search for "ttyB0" in the parisc-linux mailing list archives
(lists.parisc-linux.org).

grant


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
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Xref: news.gmane.org gmane.linux.ports.parisc:17999

> I'm building glibc-2.3.1-15 and should know soon if something
> has changed.

The enclosed patch to pt-initfini.c for gcc 3.3 is missing from -15.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--- pt-initfini.c.orig	2002-08-26 21:52:36.000000000 -0700
+++ pt-initfini.c	2003-03-18 12:11:20.000000000 -0800
@@ -41,70 +41,70 @@
    and epilogues.  Therefore we write these in assembly to make sure
    they do the right thing.  */
 
-__asm__ ("
-
-#include \"defs.h\"
-
-/*@HEADER_ENDS*/
-
-/*@_init_PROLOG_BEGINS*/
-	.section .init
-	.align 4
-	.globl _init
-	.type _init,@function
-_init:
-	stw	%rp,-20(%sp)
-	stwm	%r4,64(%sp)
-	stw	%r19,-32(%sp)
-	bl	__pthread_initialize_minimal,%rp
-	copy	%r19,%r4	/* delay slot */
-	copy	%r4,%r19
-/*@_init_PROLOG_ENDS*/
-
-/*@_init_EPILOG_BEGINS*/
-/* Here is the tail end of _init.  */
-	.section .init
-	ldw	-84(%sp),%rp
-	copy	%r4,%r19
-	bv	%r0(%rp)
-_end_init:
-	ldwm	-64(%sp),%r4
-
-/* Our very own unwind info, because the assembler can't handle
-   functions split into two or more pieces.  */
-	.section .PARISC.unwind,\"a\",@progbits
-	.extern _init
-	.word	_init, _end_init
-	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
-
-/*@_init_EPILOG_ENDS*/
-
-/*@_fini_PROLOG_BEGINS*/
-	.section .fini
-	.align 4
-	.globl _fini
-	.type _fini,@function
-_fini:
-	stw	%rp,-20(%sp)
-	stwm	%r4,64(%sp)
-	stw	%r19,-32(%sp)
-	copy	%r19,%r4
-/*@_fini_PROLOG_ENDS*/
-
-/*@_fini_EPILOG_BEGINS*/
-	.section .fini
-	ldw	-84(%sp),%rp
-	copy	%r4,%r19
-	bv	%r0(%rp)
-_end_fini:
-	ldwm	-64(%sp),%r4
-
-	.section .PARISC.unwind,\"a\",@progbits
-	.extern _fini
-	.word	_fini, _end_fini
-	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
-
-/*@_fini_EPILOG_ENDS*/
-
-/*@TRAILER_BEGINS*/
+__asm__ ("								\n\
+									\n\
+#include \"defs.h\"							\n\
+									\n\
+/*@HEADER_ENDS*/							\n\
+									\n\
+/*@_init_PROLOG_BEGINS*/						\n\
+	.section .init							\n\
+	.align 4							\n\
+	.globl _init							\n\
+	.type _init,@function						\n\
+_init:									\n\
+	stw	%rp,-20(%sp)						\n\
+	stwm	%r4,64(%sp)						\n\
+	stw	%r19,-32(%sp)						\n\
+	bl	__pthread_initialize_minimal,%rp			\n\
+	copy	%r19,%r4	/* delay slot */			\n\
+	copy	%r4,%r19						\n\
+/*@_init_PROLOG_ENDS*/							\n\
+									\n\
+/*@_init_EPILOG_BEGINS*/						\n\
+/* Here is the tail end of _init.  */					\n\
+	.section .init							\n\
+	ldw	-84(%sp),%rp						\n\
+	copy	%r4,%r19						\n\
+	bv	%r0(%rp)						\n\
+_end_init:								\n\
+	ldwm	-64(%sp),%r4						\n\
+									\n\
+/* Our very own unwind info, because the assembler can't handle		\n\
+   functions split into two or more pieces.  */				\n\
+	.section .PARISC.unwind,\"a\",@progbits				\n\
+	.extern _init							\n\
+	.word	_init, _end_init					\n\
+	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08		\n\
+									\n\
+/*@_init_EPILOG_ENDS*/							\n\
+									\n\
+/*@_fini_PROLOG_BEGINS*/						\n\
+	.section .fini							\n\
+	.align 4							\n\
+	.globl _fini							\n\
+	.type _fini,@function						\n\
+_fini:									\n\
+	stw	%rp,-20(%sp)						\n\
+	stwm	%r4,64(%sp)						\n\
+	stw	%r19,-32(%sp)						\n\
+	copy	%r19,%r4						\n\
+/*@_fini_PROLOG_ENDS*/							\n\
+									\n\
+/*@_fini_EPILOG_BEGINS*/						\n\
+	.section .fini							\n\
+	ldw	-84(%sp),%rp						\n\
+	copy	%r4,%r19						\n\
+	bv	%r0(%rp)						\n\
+_end_fini:								\n\
+	ldwm	-64(%sp),%r4						\n\
+									\n\
+	.section .PARISC.unwind,\"a\",@progbits				\n\
+	.extern _fini							\n\
+	.word	_fini, _end_fini					\n\
+	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08		\n\
+									\n\
+/*@_fini_EPILOG_ENDS*/							\n\
+									\n\
+/*@TRAILER_BEGINS*/							\n\
 ");



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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] 64 bit userspace
Date: Tue, 18 Mar 2003 15:33:51 -0800
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> 	I would to know, what be missing to finish 64 bit userspace to we
> run 64 bit applications?
> 	If someone could enumerate the missing items and where we could
> access this development source, maybe I can give some help in this
> development.

Carlos might have a better list somewhere, but off the top of my head:

- binutils needs a lot of work for 64-bit palinux. It barely works for 
  building 64-bit kernels
- gcc's hppa64-linux target should be in decent shape in general, 
  although right now it cannot bootstrap itself (for 3.2 at least,
  not sure about 3.3... I have one patch from Dave to test)
- kernel assumes userspace is 32-bit in several places (e.g. syscalls,
  signals, ..) these need to be cleaned up
- there is no glibc support for hppa64-linux, this needs to be written
- there is no gdb support for hppa64-linux, this needs to be written

i'm sure there are more, but you get the idea -- in general nothing is
done yet and this will need a LOT of work; meanwhile we still have lots
to do for kernel and 32-bit userspace. If you have the time, and want to
hack on userspace stuff I can give you a list of interesting projects :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] squid pb with glibc-2.3.1 and pthread (pb reproduced now)
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> So it doesn't yet help here. Never the less I think that I reach to produce
> enough simple material which Carlos could analyse (in its time) :)

If you send me a test case I can look at it. I don't even see why -l
pthread would break the previous code :)

c.


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>
>> So it doesn't yet help here. Never the less I think that I reach to produce
>> enough simple material which Carlos could analyse (in its time) :)
>
>If you send me a test case I can look at it. I don't even see why -l
>pthread would break the previous code :)
>

Don't even more but it is a rare case where I encounter mallopt usage?

Anyway here it is:

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

/* getpid(), geteuid()  */
#include <sys/types.h>
#include <unistd.h>

/* setgroups() */
#include <grp.h>

/* mkdir() */
#include <sys/stat.h>
#define MAXPATHLEN 256

/* waitpid() */
#include <sys/wait.h>

/* mallopt() */
#include <malloc.h>

#define SQUID_MAXFD 4096

/* autoconf.h */
/* Define if you have the mallopt function.  */
#define HAVE_MALLOPT 1

/* dlmalloc.c */
#define M_GRAIN   3    /* UNUSED in this malloc */
#define M_MXFAST  1    /* UNUSED in this malloc */

int Squid_MaxFD;		/* SQUID_MAXFD */

FILE *debug_log = NULL;

int
main(int argc, char **argv)
{
    int errcount = 0;
    mode_t oldmask;

    debug_log = stderr;
    if (FD_SETSIZE < Squid_MaxFD)
	Squid_MaxFD = FD_SETSIZE;

    fprintf(stderr, "nb_err: %d\n", errcount);
    /* call mallopt() before anything else */

#ifdef HAVE_MALLOPT
    fprintf(stderr, "  HAVE_MALLOPT \n");
#ifdef M_GRAIN
    /* Round up all sizes to a multiple of this */
    fprintf(stderr, " M_GRAIN seti: %d\n", M_GRAIN);
    mallopt(M_GRAIN, 16);
#endif
#ifdef M_MXFAST
    /* biggest size that is considered a small block */
    fprintf(stderr, " M_MXFAST seti: %d\n", M_MXFAST);
    mallopt(M_MXFAST, 256);
#endif
#ifdef M_NBLKS
    /* allocate this many small blocks at once */
    fprintf(stderr, " M_NBLKS set: %d\n", M_NBLKS);
    mallopt(M_NLBLKS, 32);
#endif
#endif /* HAVE_MALLOPT */

/*
    oldmask = umask(S_IRWXO);
 */

    return 0;
}

compile it with cmd:
gcc -o foo -l pthread foo.c

(the simple gcc -o foo foo.c do not present the pb;
neither gcc -static -o foo -l pthread foo.c [previously it makes a segv])

Thanks for your attention,
    Joel



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> I'm currently trying to reduce the dump time, and then I try to dump only
> pages that are currently use by the system. In page structure I found a flag,
> I was thinking a good one for this purpose:
> atomic_t count;                 /* Usage count, see below. */

Bruno, isn't this handled in the generic dump code? I haven't looked at
this for a while, but I thought the generic dump code lets you configure
whether to dump all kernel pages, all kernel+user referened pages or
all pages whether referenced or not...

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] struct page: page in use or not ?
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On Wed, Mar 19, 2003 at 05:50:46PM +0100, bruno_vidal@hp.com wrote:
>     Hi
> I'm currently trying to reduce the dump time, and then I try to dump only
> pages that are currently use by the system. In page structure I found a flag,
> I was thinking a good one for this purpose:
> atomic_t count;                 /* Usage count, see below. */
> 
> But after taking only pages where count != 0, something was broken, I was
> not able to look at proc structure, and several things.....
> If a do a "full" dump I'm still able to look at what I need, so this page.count
> is not accurate for this purpose. So does't exist a good way to know if a page
> is in use or not ?

The problem is multi-page allocs.  The `struct page' is not valid
for those.  I'm not sure what a good way of doing this is -- have you
looked at the swsusp patches to see how they do it?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] /lib/ld.so.1 (glibc) issues on 2.5 kernel??
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Continuing to track this problem down, I have found the
following:

The Problem appears to be that when the 

	NEW_AUX_ENT(AT_ENTRY, exec->e_entry)

is called, it puts in the wrong entry point.

The reason I believe the error manifests itself is because
of this if statment:

  if (*user_entry == (ElfW(Addr)) ENTRY_POINT)

I have tracked down values of the user_entry and ENTRY_POINT:

	user_entry: 41001fb4
	ENTRY_POINT: 41027082

Since they are different, the if statement fails... My belief
is they should be the same when /lib/ld.so.1 is called because
of the following comment inside this if statement:


      /* Ho ho.  We are not the program interpreter!  We are the program
         itself!  This means someone ran ld.so as a command.  Well, that
         might be convenient to do sometimes.  We support it by
         interpreting the args like this:
                                                                                
         ld.so PROGRAM ARGS...
 
         The first argument is the name of a file containing an ELF
         executable we will load and run with the following arguments.
         To simplify life here, PROGRAM is searched for using the
         normal rules for shared objects, rather than $PATH or anything
         like that.  We just load it and use its entry point; we don't
         pay attention to its PT_INTERP command (we are the interpreter
         ourselves).  This is an easy way to test a new ld.so before
         installing it.  */



to me there looks like two things that could be wrong:

1.  The exec->e_entry needs to be fixed in the kernel, so it matches
    the _start of the library.

2.  The ENTRY_POINT needs to be changed in glibc for parisc-linux.


ia64 seems to be the only arch that changes the value of ENTRY_POINT,
so this doesn't seem likely...

./glibc-2.3.1/sysdeps/generic/entry.h:#define ENTRY_POINT _start
./glibc-2.3.1/sysdeps/ia64/elf/entry.h:#define ENTRY_POINT (((long int
*) _start)[0])



I am planning to pursue option 1 unless someone thinks option 2 is the
correct option to pursue.


Thanks,

- Ryan


-- 
Ryan Bradetich <rbradetich@uswest.net>



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On Thu, Mar 20, 2003 at 12:23:08PM +0100, bruno_vidal@hp.com wrote:
>     Hi
> What do you mean by "swsusp" patche ? What it do....
> Actually I'm looking at the kmalloc() function in order to
> understand how it determine the bucket, and so to know
> which pages I need to dump before I can use the page structure.
> Do you think it is a good starting point, or using page
> struture is really a bad option ?

kmalloc (ie slab) is the wrong allocator to be looking at.  you want
get_free_pages.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Ryan,

> 	user_entry: 41001fb4
> 	ENTRY_POINT: 41027082

Intereting...
 
> Since they are different, the if statement fails... My belief
> is they should be the same when /lib/ld.so.1 is called because
> of the following comment inside this if statement:

I wouldn't trust code comments.
 
> to me there looks like two things that could be wrong:
> 
> 1.  The exec->e_entry needs to be fixed in the kernel, so it matches
>     the _start of the library.
> 
> 2.  The ENTRY_POINT needs to be changed in glibc for parisc-linux.
> 
> I am planning to pursue option 1 unless someone thinks option 2 is the
> correct option to pursue.

Would you be willing to ask this question on
libc-alpha@sources.redhat.com? If not, I could push the question out
there and see what the official solution should be and why.

I'm interested to know why this broke? :)

c.



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On Tue, Mar 18, 2003 at 02:33:37PM +0000, Matthew Wilcox wrote:
> 
> According to the folk wisdom around CVS, long-lived branches make
> operations slower.  Here's some evidence:
> 
> http://mail.gnu.org/archive/html/info-cvs/2001-08/msg00939.html
> http://sources.redhat.com/ml/gdb/2003-03/msg00091.html
> 
> >From this point of view, our CVS tree is practically pessimal.  We have
> two long-lived, regularly-updated branches (1.1.2. and 1.).  This may
> explain why CVS is taking a long time to do simple stuff that used to
> not take very long at all.
[snip]

I don't want to start an SCM flamewar, but, since Thibaut already
mentioned BK... :)  Subversion (http://subversion.tigris.org/) has cheap
branching and tagging (which are both actually just "cheap" copies.)
Subversion does not slow down depending on the lifetime of the branches
etc.

Of course Subversion is not yet 1.0, but there are at least some people
playing with importing Linux kernel trees into Subversion repositories,
and Connectiva uses Subversion for all the packages etc. in their
distribution.

See http://subversion.tigris.org/svn-repositories.html for some of the
people using it.  The biggest repository on that list is Connectiva's
> 7GB repository.

I don't know if anyone's tried Subversion on parisc Linux.

I am not involved in the Subversion project, except that I am subscribed
to the developers list.  I have not submitted any but the most trivial
of patches and don't care if you decide to use it or stick with CVS or
use something else.

-- 
Michael Wood <mwood@its.uct.ac.za>


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> I don't want to start an SCM flamewar, but, since Thibaut already
> mentioned BK... :) 

It's now clear french humour will never be understood by non-natives.

;-)

Matthieu
(French native)



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On Thu, Mar 20, 2003 at 12:23:08PM +0100, bruno_vidal@hp.com wrote:
>     Hi
> What do you mean by "swsusp" patche ? What it do....

swsusp = Software Suspend

http://fchabaud.free.fr/English/default.php3?COUNT=3&FILE0=Tricks&FILE1=Laptop&FILE2=Swsusp

	Software suspend is a kernel patch that provides the ability to
	suspend execution of the kernel without using any APM BIOS
	feature. This is really useful either if your BIOS is broken
	(for instance you have bought a larger disk than the original
	one and the BIOS is unable to handle it :-() or if you
	frequently swap from windows to linux because this feature
	allows you to save your linux session on disk instead of
	rebooting.

-- 
Michael Wood <mwood@its.uct.ac.za>


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On Thu, 2003-03-20 at 15:23, Matthieu Delahaye wrote:
> > I don't want to start an SCM flamewar, but, since Thibaut already
> > mentioned BK... :) 
> 
> It's now clear french humour will never be understood by non-natives.

Some of it is (http://www.bretzelforbush.com/) for example 8)



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Hi people,

	I ask you again about what is necessary to develop the 64 bit
userspace to run applications because maybe HP could give some suport =
to
finish this.
	I try to get some HP help, but to do this I will give them a
detailed report with what is necessary to develop 64 bit userspace and =
how
to do this (kernel changes, user space and application frame work).=20
	What informations is needed to follow the work.
	However, any help and information is welcome to I finish this report
and try to get HP help.

	Thanks in advance and by yours efforts,

=09
-----------------------------------------------------------------------
	              Leandro Marcondes Farinati
	                    Software Developer

	*   leandro.farinati@hp.com

>  -----Original Message-----
> From: 	Leandro Farinati   On Behalf Of FARINATI,LEANDRO
> (HP-Brazil,ex1)
> Sent:	ter=E7a-feira, 18 de mar=E7o de 2003 17:58
> To:	Parisc-Linux List (E-mail)
> Subject:	64 bit userspace
>=20
> Hi people,
>=20
> 	I would to know, what be missing to finish 64 bit userspace to we
> run 64 bit applications?
> 	If someone could enumerate the missing items and where we could
> access this development source, maybe I can give some help in this
> development.
>=20
> 	Thanks in advance,
>=20
> =
-----------------------------------------------------------------------
>               Leandro Marcondes Farinati
>                     Software Developer
>=20
> *   leandro.farinati@hp.com
>=20
>=20


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On Thu, Mar 20, 2003 at 05:12:17PM +0000, Alan Cox wrote:
> On Thu, 2003-03-20 at 15:23, Matthieu Delahaye wrote:
> > > I don't want to start an SCM flamewar, but, since Thibaut already
> > > mentioned BK... :) 
> > 
> > It's now clear french humour will never be understood by non-natives.
> 
> Some of it is (http://www.bretzelforbush.com/) for example 8)
> 
Bouh, the "bookmark this page" link doesn't work. Stupid french.




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Hi Leandro,

> 	I ask you again about what is necessary to develop the 64 bit
> userspace to run applications because maybe HP could give some suport to
> finish this.
> 	I try to get some HP help, but to do this I will give them a
> detailed report with what is necessary to develop 64 bit userspace and how
> to do this (kernel changes, user space and application frame work). 
> 	What informations is needed to follow the work.
> 	However, any help and information is welcome to I finish this report
> and try to get HP help.

If you are going to take the lead in generating this report, I think
it would work better if you posted what you have and asked for comments.
Just feeding information into a blackhole isn't very interesting.

As I see it, this will only move forward if there is sufficient
interest in the community.  You lose about 10% in performance in
the average program moving to 64-bits.  So, you only want to go to
64-bits if you have a need to run large applications.  This need
may exist in commercial and scientific computing, but it's not
important to the average volunteer software developer.  If HP wants
to get the port moving in this direction, there needs to be a
carrot.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Le jeudi, 20 mar 2003, =E0 18:12 Europe/Paris, Alan Cox a =E9crit :

> On Thu, 2003-03-20 at 15:23, Matthieu Delahaye wrote:
>>> I don't want to start an SCM flamewar, but, since Thibaut already
>>> mentioned BK... :)
>>
>> It's now clear french humour will never be understood by non-natives.
>
> Some of it is (http://www.bretzelforbush.com/) for example 8)
>
What would French humour be without American help? ;^)




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>> 
>> these are definitely kernel addresses....
>
>Right.  I see the code that's causing the problem in kernel/signal.c:
>
>                if (k->sa.sa_handler == SIG_IGN
>		    || (k->sa.sa_handler == SIG_DFL
>
>
>You don't want to canonicalize k->sa.sa_handler here, so a cast to
>void * or something is needed.  The PA is the only port that I am
>aware of that needs to canonicalize function pointers.
>
Well I try to test some:
--- signal.h.orig       2003-03-20 15:12:24.000000000 +0100
+++ signal.h    2003-03-20 15:11:47.000000000 +0100
@@ -106,9 +106,15 @@
 #define SIG_UNBLOCK        1   /* for unblocking signals */
 #define SIG_SETMASK        2   /* for setting the signal mask */
 
+#if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3
+#define SIG_DFL        (0)                     /* default signal handling
*/
+#define SIG_IGN        (1)                     /* ignore signal */
+#define SIG_ERR        (-1)                    /* error return from signal
*/
+#else
 #define SIG_DFL        ((__sighandler_t)0)     /* default signal handling
*/
 #define SIG_IGN        ((__sighandler_t)1)     /* ignore signal */
 #define SIG_ERR        ((__sighandler_t)-1)    /* error return from signal
*/
+#endif
 
 # ifndef __ASSEMBLY__

Unfortunaltely, I don't actualy know if it could help because I update kernel
src to pa31 and the problem move to:

IAOQ = 102f1e6c
Func: $lcfu_loop, Off: 0, Addr: 0x102f1e6c
102f1e60:	08 16 32 40 	or,<> r22,r0,r0
102f1e64:	08 00 02 41 	copy r0,r1
102f1e68:	00 01 58 20 	mtsp r1,sr1
102f1e6c <$lcfu_loop>:
102f1e6c:	0f 22 50 21 	ldb,ma 1(sr1,r25),r1
102f1e70:	af 1f 3f ed 	addib,<> -1,r24,102f1e6c <$lcfu_loop>

GR0 = 00000000

GR1 = 000000dd

GR2 = 1016dd94
Func: copy_mount_options, Off: 70, Addr: 0x1016dd94
1016dd90:	08 04 02 58 	copy r4,r24
1016dd94:	0b 84 04 04 	sub r4,ret0,r4
1016dd98:	08 03 02 5a 	copy r3,r26
1016dd9c:	84 80 20 70 	cmpib,= 0,r4,1016dddc <copy_mount_options+0xb8>

GR3 = 1ffb9000

GR4 = 00001000

GR5 = 1ffff005

GR6 = 00001000

GR7 = 107c8788

GR8 = 103ab810
Func: packet_init, Off: 3c, Addr: 0x103ab810
103ab810:	87 80 20 18 	cmpib,= 0,ret0,103ab824 <packet_init+0x50>
103ab814:	22 72 12 06 	ldil 10324800,r19
103ab818:	4a 74 09 48 	ldw 4a4(r19),r20
103ab81c:	6b 80 00 68 	stw r0,34(ret0)

GR9 = 103e0010
Func: Version_132116, Off: 0, Addr: 0x103e0010

GR10 = 10418010
Func: blkdevs, Off: 4e4, Addr: 0x10418010

GR11 = 102f8000
Func: ic_bootp_cookie, Off: 440, Addr: 0x102f8000

GR12 = 10340810
Func: syscall_names, Off: 49c, Addr: 0x10340810

GR13 = 10413810
Func: log_buf, Off: 79e4, Addr: 0x10413810

GR14 = 00000000

GR15 = f0400004

GR16 = f00008c4

GR17 = f000017c

GR18 = f0000174

GR19 = 107c8000

GR20 = bffd00d5

GR21 = f0047000

GR22 = 00000000

GR23 = 00000000

GR24 = 00000005

GR25 = 20000000

GR26 = 1ffb9ffb

GR27 = 10330010
Func: $global$, Off: 0, Addr: 0x10330010

GR28 = fffffff4

GR29 = 80dea173

GR30 = 107c8880

GR31 = 101563e4
Func: blkdev_put, Off: 1f4, Addr: 0x101563e4
101562bc:	86 60 22 50 	cmpib,= 0,r19,101563ec <blkdev_put+0x1fc>
101563e0:	08 1f 02 42 	copy r31,rp
101563e4:	c9 1c 9d d5 	movb,tr ret0,r8,101562d4 <blkdev_put+0xe4>
101563e8:	48 b3 00 30 	ldw 18(r5),r19
101563ec:	08 05 02 5a 	copy r5,r26

Kernel symbols on the stack:
[<1016dd60>]: Func: copy_mount_options, Off: 3c, Addr: 0x1016dd60
[<1016e5e8>]: Func: sys_mount, Off: 30, Addr: 0x1016e5e8
[<101004b8>]: Func: prepare_namespace, Off: bc, Addr: 0x101004b8
[<10100240>]: Func: init, Off: 58, Addr: 0x10100240
[<10108c4c>]: Func: ret_from_kernel_thread, Off: 18, Addr: 0x10108c4c
[<10108cf4>]: Func: _switch_to_ret, Off: 0, Addr: 0x10108cf4
[<1012187c>]: Func: call_console_drivers, Off: b8, Addr: 0x1012187c
[<1012187c>]: Func: call_console_drivers, Off: b8, Addr: 0x1012187c
[<10121d2c>]: Func: release_console_sem, Off: 50, Addr: 0x10121d2c
[<10121b94>]: Func: printk, Off: 1f0, Addr: 0x10121b94
[<101001e8>]: Func: init, Off: 0, Addr: 0x101001e8
[<10126488>]: Func: it_real_fn, Off: 0, Addr: 0x10126488

Any other additional idea?

Thanks,
    Joel


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Hi Randolph,

>>
>>> I am looking to rebuild gcc-3.3 64bits to rebuild the last kernel 2.4
>to
>>> conitnue my investigation about smp(64bits) [which failled to boot on
>a
>>N4000
>>> when compile d with gcc-3.2 get from unofficial-debs].
>>
>>If you are working on 64-bit, I would advise staying with 3.0.4 for
>>now.... no one has tested 3.3 hppa64-linux-gcc at all, so it will just
>>be introducing more unknowns into the problem.
>>
>Ok I am gonna try to rebuild it with gcc-3.0.
>
Well just a small follow up to say that I had not much success with gcc-3.0
(64bits).

Also I did some other test:
this same kernel (smp64) boots well on a b2k (pa8600 up),
it boots also well on the N4000 when I 'disable' the second cpu?

(It seems to fail before 'Add swap...' but not sure because I notice that
all boot blabla is not output to the console [ie compare to dmesg nothing
is print out before 'sym53c8xx: at PCI...']?)

I will so try to ack dump_analyser to see how may I got analyse of the piminfo
which I grab from the two processor.

See you,
    Joel


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> >> 
> >> these are definitely kernel addresses....
> >
> >Right.  I see the code that's causing the problem in kernel/signal.c:
> >
> >                if (k->sa.sa_handler == SIG_IGN
> >		    || (k->sa.sa_handler == SIG_DFL
> >
> >
> >You don't want to canonicalize k->sa.sa_handler here, so a cast to
> >void * or something is needed.  The PA is the only port that I am
> >aware of that needs to canonicalize function pointers.
> >
> Well I try to test some:
> --- signal.h.orig       2003-03-20 15:12:24.000000000 +0100
> +++ signal.h    2003-03-20 15:11:47.000000000 +0100
> @@ -106,9 +106,15 @@
>  #define SIG_UNBLOCK        1   /* for unblocking signals */
>  #define SIG_SETMASK        2   /* for setting the signal mask */
>  
> +#if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3
> +#define SIG_DFL        (0)                     /* default signal handling
> */
> +#define SIG_IGN        (1)                     /* ignore signal */
> +#define SIG_ERR        (-1)                    /* error return from signal
> */
> +#else
>  #define SIG_DFL        ((__sighandler_t)0)     /* default signal handling
> */
>  #define SIG_IGN        ((__sighandler_t)1)     /* ignore signal */
>  #define SIG_ERR        ((__sighandler_t)-1)    /* error return from signal
> */
> +#endif

No, don't do that.  SIG_DFL, SIG_IGN and SIG_ERR expand to compound
literals.  Look at the assembly output from the following little
program (gcc -S) with and without the "void *" cast.

typedef int (*__sighandler_t)(void);
#define SIG_IGN        ((__sighandler_t)1)
int foo (__sighandler_t g)
{
  return g == (void *)SIG_IGN;
}

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Hi Mike,

>On Sunday 16 March 2003 05:06 pm, Matthew Wilcox wrote:
>> On Sun, Mar 16, 2003 at 04:52:19PM -0600, Michael S. Zick wrote:
>> > On Friday 14 March 2003 07:17 am, Matthew Wilcox wrote:
>> > > net/core/rtnetlink.c:extern __inline__ int rtnetlink_rcv_skb(struct
>> > > sk_buff *skb)
>> >
>> > Stolen from the GCC thread on 3.x.x inlining...
>> > - - - - GCC - - - - -
>> > For the record, the kernel doesn't need this any more.  Go check 2.5;
>> > new versions of <linux/compiler.h> contain this line:
>> > #define inline          __inline__ __attribute__((always_inline))
>> > - - - - - - - - - - - -
>> > That forces GCC to ignore its changed inline metrics and simply inline
>> > the function.
>>
>> Yes, but...
>>
>>  * Joel's using 2.4, not 2.5
>Exactly why I mentioned it.
>
>>  * #define inline doesn't help functions which are marked as __inline__
>If he follows your suggestion of dropping the "__" around "inline" it will.
>
>>
>> This isn't a function which absolutely needs to be inlined.  It can
>> be `static inline' and gcc can do whatever it likes then.
>The subject is getting a lot of discussion on the GCC list.  I only mentioned
>this one workaround so that Joel could get on with his work before the issue
>is settled on the GCC list.
>
Good idea: I (just sorry for delay) back port this stuff for 2.5 and it works
fine.

Thanks a lot,
    Joel


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> No, don't do that.  SIG_DFL, SIG_IGN and SIG_ERR expand to compound
> literals.

Sorry, that part is wrong.  Anyway, just leave the macro defines as
is and cast them where used to void *.  This causes the conversion
of the other operand to void * and function pointer conicalization
won't be done (6.5.9, paragraph 5).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: [parisc-linux] /lib/ld.so.1 (glibc) issues on parisc-linux 2.5 kernel??
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Hello libc hackers,

I am investigating a problem that occurs between ld.so.1
and the kernel on the 2.4 (w/o the added hack to fix this) and 2.5 
kernels. The problem manifested itself when I tried to run the ltp
tests, and is shown below:


rbrad@vega:~$ /lib/ld.so.1 --verify /bin/sh
Inconsistency detected by ld.so: rtld.c: 879: dl_main: Assertion
`_rtld_local._dl_rtld_map.l_libname' failed!


The system is running Debian Linux with this version of glibc:
ii  libc6          2.3.1-14       GNU C Library: Shared libraries and


The complete email thread on the parisc-linux list is located at:

http://lists.parisc-linux.org/pipermail/parisc-linux/2003-March/019460.html




I have basically tracked this mis-match down to this problem:

With this statement in the kernel (fs/binfmt_elf.c:create_elf_tables())

	NEW_AUX_ENT(AT_ENTRY, exec->e_entry);

The user_entry and ENTRY_POINTS are:

	user_entry: 41001fb4
	ENTRY_POINT: 41027082


With this statement not present, and the interpreter_type == 0 (No
Interpreter) .. the user_entry and ENTRY_POINT match.  [Note: The
assert goes away at this point].

	user_entry: 41027082
	ENTRY_POINT: 41027082


So at this point, I am not sure if the kernel is setting the
exec->e_entry incorrectly, or if the ENTRY_POINT needs to be adjusted
in glibc for the hppa platform.


Carlos O'Donell suggested I forward this message to this list for
additional advice.  Please cc me on any replies since I am not
subscribed to this list.

Thanks,

- Ryan


-- 
Ryan Bradetich <rbradetich@uswest.net>



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Subject: [parisc-linux] Implementing cancellable syscalls for PA in glibc 2.3.2
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PA,

I _know_ in all my PA travels I've seen assembly to do these bits, but
currently my sleepy brain says "write the list, and collate tomorrow."

N.B. It must be assembly, it's GAS, and this will live in glibc, if you
really want to know I'm writing the cancellable syscall support so we
can have a building 2.3.2 :)

---
Task A: Get single thread pointer.

	mfctl cr27, r4;
	* Then I need to load r4->p_header.multiple_threads somehow?*
	* I don't really know if I can just load the struct offset  *
	* without worrying that GCC's padded things...              *

	* Also need to check if this value is non-zero, subtract 1? *

Task B: Save space on the stack.

	stwm r4, STACKSPACE(sp);

Task C: Restore space from stack.

	ldwm -STACKSPACE(sp), r4;

Task D: Push an arg onto the stack.

	stw r2[6543], OFFSET(sp);
	* Remembering that it's 4 bytes per store *

Task E: Get an arg from the stack.

	ldw -OFFSET(sp), r2[6543];
---

Comments and help is welcome :)

c.


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Hello,

I try to install parisc-linux on a J5600 workstation. When the
welcome screen from Debian appears I press the enter key 
(german keyboard, USB) to continue but there is no reaction.

So I looked in the mailing list archives and found that there
are/were some problems with J5600 workstations.

What is the current state? Are J5600 supported?

Thanks in advance.

Stefan Witzel

--
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Stabsstelle DV                 --------------------------------------
Gosslerstrasse 5-7                        fon: +49 551 394160
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On Fri, Mar 21, 2003 at 12:52:58PM +0100, Stefan Witzel wrote:
> Hello,
> 
> I try to install parisc-linux on a J5600 workstation. When the
> welcome screen from Debian appears I press the enter key
> (german keyboard, USB) to continue but there is no reaction.
> 
> So I looked in the mailing list archives and found that there
> are/were some problems with J5600 workstations.
> 
> What is the current state? Are J5600 supported?

Yes, but USB wasn't in Debian 3.0.  Back in November, Grant replied to someone with a similar problem:

> I suspect the kernel in debian stable might just be too old.
> Can you try newer net-install images from ESIEE?
>         (ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/)
> 
> FWIW, at least three developers are *using* C3000 including myself.
> But I've never cold installed using the debian since I've had bits
> on this machine since well before any ISOs were available.
> Probably would be a good exercise....

No reply was received indicating whether or not this worked, so I'm
reluctant to add a FAQ entry for it.  Please let us know how you get on
with this.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
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Hi Dave,
>
>Sorry, that part is wrong.  Anyway, just leave the macro defines as
>is and cast them where used to void *.  This causes the conversion
>of the other operand to void * and function pointer conicalization
>won't be done (6.5.9, paragraph 5).
>
you have definitely right.

I test following work-around against 2.4.20-pa32 with latest dpkg gcc-3.3
(3.3-0pre2) and it boot well know:
=====
diff -Naur linux-2.4.20-pa32/Makefile linux-2.4.20-pa32-gcc33/Makefile
--- linux-2.4.20-pa32/Makefile	2003-03-21 12:17:41.000000000 +0100
+++ linux-2.4.20-pa32-gcc33/Makefile	2003-03-21 12:19:06.000000000 +0100
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 4
 SUBLEVEL = 20
-EXTRAVERSION = -pa32
+EXTRAVERSION = -pa33
 
 KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
 
diff -Naur linux-2.4.20-pa32/arch/parisc/kernel/signal.c linux-2.4.20-pa32-gcc33/arch/parisc/kernel/signal.c
--- linux-2.4.20-pa32/arch/parisc/kernel/signal.c	2003-03-21 10:54:23.000000000
+0100
+++ linux-2.4.20-pa32-gcc33/arch/parisc/kernel/signal.c	2003-03-21 12:39:20.000000000
+0100
@@ -489,7 +489,11 @@
 		ka = &current->sig->action[signr-1];
 		DBG(("sa_handler is %x\n", 
 			(unsigned int) ka->sa.sa_handler));
+#if !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__
>= 1))
+		if (ka->sa.sa_handler == (void *)SIG_IGN) {
+#else
 		if (ka->sa.sa_handler == SIG_IGN) {
+#endif
 			if (signr != SIGCHLD)
 				continue;
 			while (sys_wait4(-1, NULL, WNOHANG, NULL) > 0)
@@ -497,7 +501,11 @@
 			continue;
 		}
 
+#if !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__
>= 1))
+		if (ka->sa.sa_handler == (void *)SIG_DFL) {
+#else
 		if (ka->sa.sa_handler == SIG_DFL) {
+#endif
 			int exit_code = signr;
 
 			/* Init gets no signals it doesn't want.  */
diff -Naur linux-2.4.20-pa32/drivers/char/n_tty.c linux-2.4.20-pa32-gcc33/drivers/char/n_tty.c
--- linux-2.4.20-pa32/drivers/char/n_tty.c	2003-03-21 10:51:30.000000000
+0100
+++ linux-2.4.20-pa32-gcc33/drivers/char/n_tty.c	2003-03-21 12:34:35.000000000
+0100
@@ -810,7 +810,11 @@
 int is_ignored(int sig)
 {
 	return (sigismember(&current->blocked, sig) ||
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+	        current->sig->action[sig-1].sa.sa_handler == (void *)SIG_IGN);
+#else
 	        current->sig->action[sig-1].sa.sa_handler == SIG_IGN);
+#endif
 }
 
 static void n_tty_set_termios(struct tty_struct *tty, struct termios * old)
diff -Naur linux-2.4.20-pa32/fs/ncpfs/sock.c linux-2.4.20-pa32-gcc33/fs/ncpfs/sock.c
--- linux-2.4.20-pa32/fs/ncpfs/sock.c	2003-03-21 10:36:05.000000000 +0100
+++ linux-2.4.20-pa32-gcc33/fs/ncpfs/sock.c	2003-03-21 12:35:37.000000000
+0100
@@ -466,9 +466,17 @@
 			   What if we've blocked it ourselves?  What about
 			   alarms?  Why, in fact, are we mucking with the
 			   sigmask at all? -- r~ */
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+			if (current->sig->action[SIGINT - 1].sa.sa_handler == (void *)SIG_DFL)
+#else
 			if (current->sig->action[SIGINT - 1].sa.sa_handler == SIG_DFL)
+#endif
 				mask |= sigmask(SIGINT);
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+			if (current->sig->action[SIGQUIT - 1].sa.sa_handler == (void *)SIG_DFL)
+#else
 			if (current->sig->action[SIGQUIT - 1].sa.sa_handler == SIG_DFL)
+#endif
 				mask |= sigmask(SIGQUIT);
 		}
 		siginitsetinv(&current->blocked, mask);
diff -Naur linux-2.4.20-pa32/fs/proc/array.c linux-2.4.20-pa32-gcc33/fs/proc/array.c
--- linux-2.4.20-pa32/fs/proc/array.c	2003-03-21 10:01:18.000000000 +0100
+++ linux-2.4.20-pa32-gcc33/fs/proc/array.c	2003-03-21 12:36:44.000000000
+0100
@@ -231,9 +231,17 @@
 	if (p->sig) {
 		k = p->sig->action;
 		for (i = 1; i <= _NSIG; ++i, ++k) {
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+			if (k->sa.sa_handler == (void *)SIG_IGN)
+#else
 			if (k->sa.sa_handler == SIG_IGN)
+#endif
 				sigaddset(ign, i);
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+			else if (k->sa.sa_handler != (void *)SIG_DFL)
+#else
 			else if (k->sa.sa_handler != SIG_DFL)
+#endif
 				sigaddset(catch, i);
 		}
 	}
diff -Naur linux-2.4.20-pa32/include/linux/compiler.h linux-2.4.20-pa32-gcc33/include/linux/compiler.h
--- linux-2.4.20-pa32/include/linux/compiler.h	2003-03-21 12:31:39.000000000
+0100
+++ linux-2.4.20-pa32-gcc33/include/linux/compiler.h	2003-03-21 12:32:07.000000000
+0100
@@ -1,6 +1,12 @@
 #ifndef __LINUX_COMPILER_H
 #define __LINUX_COMPILER_H
 
+#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
+#define inline		__inline__ __attribute__((always_inline))
+#define __inline__	__inline__ __attribute__((always_inline))
+#define __inline	__inline__ __attribute__((always_inline))
+#endif
+
 /* Somewhere in the middle of the GCC 2.96 development cycle, we implemented
    a mechanism by which the user can annotate likely branch directions and
    expect the blocks to be reordered appropriately.  Define __builtin_expect
diff -Naur linux-2.4.20-pa32/kernel/signal.c linux-2.4.20-pa32-gcc33/kernel/signal.c
--- linux-2.4.20-pa32/kernel/signal.c	2003-03-21 10:39:32.000000000 +0100
+++ linux-2.4.20-pa32-gcc33/kernel/signal.c	2003-03-21 12:37:40.000000000
+0100
@@ -126,7 +126,11 @@
 	int i;
 	struct k_sigaction *ka = &t->sig->action[0];
 	for (i = _NSIG ; i != 0 ; i--) {
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+		if (ka->sa.sa_handler != (void *)SIG_IGN)
+#else
 		if (ka->sa.sa_handler != SIG_IGN)
+#endif
 			ka->sa.sa_handler = SIG_DFL;
 		ka->sa.sa_flags = 0;
 		sigemptyset(&ka->sa.sa_mask);
@@ -572,7 +576,11 @@
 		return -ESRCH;
 	}
 
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+	if (t->sig->action[sig-1].sa.sa_handler == (void *)SIG_IGN)
+#else
 	if (t->sig->action[sig-1].sa.sa_handler == SIG_IGN)
+#endif
 		t->sig->action[sig-1].sa.sa_handler = SIG_DFL;
 	sigdelset(&t->blocked, sig);
 	recalc_sigpending(t);
@@ -1094,8 +1102,13 @@
 		 * the signal to be ignored.
 		 */
 
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+		if (k->sa.sa_handler == (void *)SIG_IGN
+		    || (k->sa.sa_handler == (void *)SIG_DFL
+#else
 		if (k->sa.sa_handler == SIG_IGN
 		    || (k->sa.sa_handler == SIG_DFL
+#endif
 			&& (sig == SIGCONT ||
 			    sig == SIGCHLD ||
 			    sig == SIGURG ||
diff -Naur linux-2.4.20-pa32/net/sunrpc/clnt.c linux-2.4.20-pa32-gcc33/net/sunrpc/clnt.c
--- linux-2.4.20-pa32/net/sunrpc/clnt.c	2003-03-21 10:46:28.000000000 +0100
+++ linux-2.4.20-pa32-gcc33/net/sunrpc/clnt.c	2003-03-21 12:38:07.000000000
+0100
@@ -209,9 +209,17 @@
 	/* Turn off various signals */
 	if (clnt->cl_intr) {
 		struct k_sigaction *action = current->sig->action;
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+		if (action[SIGINT-1].sa.sa_handler == (void *)SIG_DFL)
+#else
 		if (action[SIGINT-1].sa.sa_handler == SIG_DFL)
+#endif
 			sigallow |= sigmask(SIGINT);
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+		if (action[SIGQUIT-1].sa.sa_handler == (void *)SIG_DFL)
+#else
 		if (action[SIGQUIT-1].sa.sa_handler == SIG_DFL)
+#endif
 			sigallow |= sigmask(SIGQUIT);
 	}
 	spin_lock_irqsave(&current->sigmask_lock, irqflags);
=====

I could not be sure about __LP64__ condition because gcc-hppa62_3.3 do not
yet exist :(

Can some body else could test it more?

Joel

PS1: I hoppe it will stay just a temporary work-around; that is typical what
I hate: code depending of platform and more over compiler release :(

PS2: If I well understand the pa32 patch include the Alan patch concerning
ptrace vulnerability. Is there some simple mean to stress the solution on
hppa platform?

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X-Mozilla-Keys:                                                                                 
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
Date: Fri, 21 Mar 2003 13:36:24 +0000
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To: Joel Soete <jsoe0708@tiscali.be>
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On Fri, Mar 21, 2003 at 01:44:28PM +0100, Joel Soete wrote:
> I test following work-around against 2.4.20-pa32 with latest dpkg gcc-3.3
> (3.3-0pre2) and it boot well know:
> @@ -489,7 +489,11 @@
> +#if !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__
> >= 1))
> +		if (ka->sa.sa_handler == (void *)SIG_IGN) {
> +#else
>  		if (ka->sa.sa_handler == SIG_IGN) {
> +#endif

ugh, this is foolish.  You should be doing:

-		if (ka->sa.sa_handler == SIG_IGN) {
+		if (ka->sa.sa_handler == (void *)SIG_IGN) {

no ifdefs!

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


From - Thu Nov 08 21:27:13 2018
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From: "Joel Soete" <jsoe0708@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: gcc-3.2 -> gcc-3.3 transition on hppa
Date: Fri, 21 Mar 2003 16:07:32 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:18031

>> I test following work-around against 2.4.20-pa32 with latest dpkg gcc-3.3
>> (3.3-0pre2) and it boot well know:
>> @@ -489,7 +489,11 @@
>> +#if !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__
>> >= 1))
>> +		if (ka->sa.sa_handler == (void *)SIG_IGN) {
>> +#else
>>  		if (ka->sa.sa_handler == SIG_IGN) {
>> +#endif
>
>ugh, this is foolish.  You should be doing:
>
>-		if (ka->sa.sa_handler == SIG_IGN) {
>+		if (ka->sa.sa_handler == (void *)SIG_IGN) {
>
>no ifdefs!
>
Willy, I trust you (not me because I not tested with gcc-3.2 neither LP64)

Thanks for your attention,
    Joel

PS: Next time I will try to pay attention to cc list :)

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Xref: news.gmane.org gmane.linux.ports.parisc:18032

Hi all,
>
>Thanks a lot for all those info. 
>
>Unfortunately I have no free time to help more on this driver (and also
not
>enough knowledge for the moment: even thought time and work could solve
this
>pb :) ).
>
Never the less I have a quick look and add some printk():
...
unsigned long cpqfcTS_ReadNVRAM( void* GPIOin, void* GPIOout , USHORT count,
	UCHAR *buf )
{
  unsigned short i;

  if( !( tl_i2c_tx_start(GPIOin, GPIOout) ))
    return FALSE;

    printk(">>> %s step1\n", __FUNCTION__);

  // Select the NVRAM for "dummy" write, to set the address
    printk(">>> GPIOout %p\n", GPIOout);
    printk(">>> SLAVE_WRITE_ADDRESS: %d\n", SLAVE_WRITE_ADDRESS);

  tl_i2c_tx_byte( GPIOout , SLAVE_WRITE_ADDRESS );
  if ( !tl_i2c_rx_ack(GPIOin, GPIOout ) )
    return( FALSE );

    printk("%s step2\n", __FUNCTION__);
...

and notice that the ReadNVRAM failed earlier (dmesg):

...
 scsi_register allocating 6640 bytes for FC HBA
  HBA found!
  HostAdapter->PciDev->irq = 320
  PciDev->baseaddress[0]= 0
  PciDev->baseaddress[1]= 30000
  PciDev->baseaddress[2]= 30100
  PciDev->baseaddress[3]= ffffffff88040000
  cpqfcHBAdata->fcChip.Registers. :
    IOBaseL = 30000
    IOBaseU = 30100
 ioremap'd Membase: ffffffff88040000
    SFQconsumerIndex.address = ffffffff88040058
    ERQproducerIndex.address = ffffffff88040008
    TYconfig.address = ffffffff88040184
    FMconfig.address = ffffffff880401c0
    FMcontrol.address = ffffffff880401c4
  Requesting 255 I/O addresses @ 30000
  Requesting 255 I/O addresses @ 30100
 ResetTachyon
  HBA Tachyon RevId 2.3
Allocating 129024 for 576 Exchanges @ 000000008d5c0000
Allocating 112904 for LinkQ @ 000000008d540000 (576 elements)
Allocating 106504 for TachSEST for 512 Exchanges
  cpqfcTS: writing IMQ BASE 500000h    PI 504000h
  cpqfcTS: SEST 0000000048b00000(virt): Wrote base 520000h @ ffffffff88040140
>>> cpqfcTS_ReadNVRAM step1
>>> GPIOout ffffffff88040188
>>> SLAVE_WRITE_ADDRESS: 160
cpqfcTS: NVRAM read failed
 WARNING! HBA NVRAM WWN read failed - make alias
  WWN 500723E644556677
  Waiting for broken Brocade switch...
 scsi_register allocating 6640 bytes for FC HBA
  HBA found!
  HostAdapter->PciDev->irq = 896
  PciDev->baseaddress[0]= 0
  PciDev->baseaddress[1]= c0000
  PciDev->baseaddress[2]= c0100
  PciDev->baseaddress[3]= ffffffffd4040000
  cpqfcHBAdata->fcChip.Registers. :
    IOBaseL = c0000
    IOBaseU = c0100
 ioremap'd Membase: ffffffffd4040000
    SFQconsumerIndex.address = ffffffffd4040058
    ERQproducerIndex.address = ffffffffd4040008
    TYconfig.address = ffffffffd4040184
    FMconfig.address = ffffffffd40401c0
    FMcontrol.address = ffffffffd40401c4
  Requesting 255 I/O addresses @ c0000
  Requesting 255 I/O addresses @ c0100
 ResetTachyon
  HBA Tachyon RevId 2.3
Allocating 129024 for 576 Exchanges @ 000000008d4c0000
Allocating 112904 for LinkQ @ 0000000048ee0000 (576 elements)
Allocating 106504 for TachSEST for 512 Exchanges
  cpqfcTS: writing IMQ BASE 640000h    PI 644000h
  cpqfcTS: SEST 000000008d5a0000(virt): Wrote base 660000h @ ffffffffd4040140
>>> cpqfcTS_ReadNVRAM step1
>>> GPIOout ffffffffd4040188
>>> SLAVE_WRITE_ADDRESS: 160
cpqfcTS: NVRAM read failed
 WARNING! HBA NVRAM WWN read failed - make alias
  WWN 500725B644556677
  Waiting for broken Brocade switch...
 scsi_register allocating 6640 bytes for FC HBA
  HBA found!
  HostAdapter->PciDev->irq = 960
  PciDev->baseaddress[0]= 0
  PciDev->baseaddress[1]= d0000
  PciDev->baseaddress[2]= d0100
  PciDev->baseaddress[3]= ffffffffd8040000
  cpqfcHBAdata->fcChip.Registers. :
    IOBaseL = d0000
    IOBaseU = d0100
 ioremap'd Membase: ffffffffd8040000
    SFQconsumerIndex.address = ffffffffd8040058
    ERQproducerIndex.address = ffffffffd8040008
    TYconfig.address = ffffffffd8040184
    FMconfig.address = ffffffffd80401c0
    FMcontrol.address = ffffffffd80401c4
  Requesting 255 I/O addresses @ d0000
  Requesting 255 I/O addresses @ d0100
 ResetTachyon
  HBA Tachyon RevId 2.3
Allocating 129024 for 576 Exchanges @ 00000000485c0000
Allocating 112904 for LinkQ @ 00000000487a0000 (576 elements)
Allocating 106504 for TachSEST for 512 Exchanges
  cpqfcTS: writing IMQ BASE 6C0000h    PI 6C4000h
  cpqfcTS: SEST 0000000048020000(virt): Wrote base 6E0000h @ ffffffffd8040140
cpqfcTS_ReadNVRAM step1
>>> GPIOout ffffffffd8040188
>>> SLAVE_WRITE_ADDRESS: 160
>>> cpqfcTS: NVRAM read failed
 WARNING! HBA NVRAM WWN read failed - make alias
  WWN 5007278544556677
  Waiting for broken Brocade switch...
scsi3 : Compaq FibreChannel HBA Tachyon Chip/Board Ver??: WWN 500723E644556677
 on PCI bus 32 device 0x1028 irq 320 IObaseL 0x30000, MEMBASE 0x88040000
PCI bus width 64 bits, bus speed 66 MHz
FCP-SCSI Driver v2.1.1
GBIC detected: NONE!  LPSM 0h Monitor
scsi4 : Compaq FibreChannel HBA Tachyon Chip/Board Ver??: WWN 500725B644556677
 on PCI bus 208 device 0x1028 irq 896 IObaseL 0xc0000, MEMBASE 0xd4040000
PCI bus width 64 bits, bus speed 66 MHz
FCP-SCSI Driver v2.1.1
GBIC detected: NONE!  LPSM 0h Monitor
scsi5 : Compaq FibreChannel HBA Tachyon Chip/Board Ver??: WWN 5007278544556677
 on PCI bus 224 device 0x1028 irq 960 IObaseL 0xd0000, MEMBASE 0xd8040000
PCI bus width 64 bits, bus speed 66 MHz
FCP-SCSI Driver v2.1.1
GBIC detected: NONE!  LPSM 0h Monitor

So it seems that   tl_i2c_tx_byte() failled?

Is GPIout are OK?

I have not any detailed doc about this card, so any advise is well come.

Thanks again,
    Joel


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Le vendredi, 21 mar 2003, =E0 13:14 Europe/Paris, Matthew Wilcox a =E9crit=
 :

> On Fri, Mar 21, 2003 at 12:52:58PM +0100, Stefan Witzel wrote:
>> Hello,
>>
>> I try to install parisc-linux on a J5600 workstation. When the
>> welcome screen from Debian appears I press the enter key
>> (german keyboard, USB) to continue but there is no reaction.
>>
>> So I looked in the mailing list archives and found that there
>> are/were some problems with J5600 workstations.
>>
>> What is the current state? Are J5600 supported?
>
> Yes, but USB wasn't in Debian 3.0.  Back in November, Grant replied to=20=

> someone with a similar problem:
>
>> I suspect the kernel in debian stable might just be too old.
>> Can you try newer net-install images from ESIEE?
>>         (ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/)
>>
>> FWIW, at least three developers are *using* C3000 including myself.
>> But I've never cold installed using the debian since I've had bits
>> on this machine since well before any ISOs were available.
>> Probably would be a good exercise....
>
> No reply was received indicating whether or not this worked, so I'm
> reluctant to add a FAQ entry for it.  Please let us know how you get =
on
> with this.
>
http://pateam.esiee.fr/cd-images/testing/
these are the latest ones (I know I should put them on dsl2, have to=20
script that somehow).

They do work.
this is the same problem we had with B2000 and B2600 here, and we=20
received numerous confirmations
that it worked for J as well.

This should be a FAQ, i'll add it later if nobody does.
See the boot howto for details:
http://pateam.esiee.fr/doc.html

HTH


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=




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On Fri, Mar 21, 2003 at 09:22:01AM +0100, Markus Schaber wrote:
> I don't want to use the machine for serious work, it's just as a proof
> of concept.
> 
> Maybe I'll see whether I can upgrade the machine with more memory...

that would be a good idea - even for proof of concept.

> > See www.parisc-linux.org.
> 
> I was there and didn't find a pre-build net-boot image that uses NFS
> root (you see, I wanted to avoid the need of an cross-compile
> environment), but I'll try again next week (I'm away over the weekend).

The Net install ISOs are what you want. See
	http://www.parisc-linux.org/software/install.html

Using is NFS Root is not parisc specific - see debian.org for documentation.
There's also nfsroot.txt with every kernel source tree:
	http://cvs.parisc-linux.org/linux/Documentation/nfsroot.txt?rev=HEAD&content-type=text/vnd.viewcvs-markup

Offhand I don't know where to find a relatively current parisc NFS Root.
You could try to copy the contents of the install CD to a local directory
on an NFS server, hack that up a bit, and export the result.

grant


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On Fri, 21 Mar 2003 10:05:02 -0700
grundler@dsl2.external.hp.com (Grant Grundler) wrote:

> On Fri, Mar 21, 2003 at 09:22:01AM +0100, Markus Schaber wrote:
> > I don't want to use the machine for serious work, it's just as a proof

> Offhand I don't know where to find a relatively current parisc NFS Root.
> You could try to copy the contents of the install CD to a local
> directory on an NFS server, hack that up a bit, and export the result.
I think that if you have a debian box handy, there's a far more simple way
to create a root tree ready to export via NFS:

# debootstrap --arch=hppa <release> <export_folder> <debian_mirror>

the --arch switch is only necessary when preparing a root for another arch
than the native one.

for me it was:

# debootstrap --arch=hppa woody foo_root/ http://ftp.de.debian.org/debian

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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FYI.  jsm, any comments?

----- Forwarded message from Andrew Morton <akpm@digeo.com> -----

Envelope-to: willy@ftp.uk.linux.org
Delivery-date: Fri, 21 Mar 2003 23:52:14 +0000
Date: Fri, 21 Mar 2003 17:56:26 -0800
From: Andrew Morton <akpm@digeo.com>
To: "David S. Miller" <davem@redhat.com>, paulus@au.ibm.com,
        benh@kernel.crashing.org, rth@twiddle.net, davidm@hpl.hp.com,
        ralf@linux-mips.org, schwidefsky@de.ibm.com,
        Russell King
 <rmk@arm.linux.org.uk>, bjornw@axis.com,
        geert@linux-m68k.org, Matthew
 Wilcox <willy@debian.org>,
        gniibe@m17n.org, linux-sh@m17n.org, jdike@karaya.com,
        uclinux-v850@lsi.nec.co.jp
Cc: Ingo Molnar <mingo@elte.hu>, linux-mm@kvack.org
Subject: arch changes for file-offset-in-pte's
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hi,

I'd like to submit Ingo's remap_file_pages() enhancements soon.  His patch
allows pages in "nonlinear" mappings to be reestablished by the kernel's
pagefault handler.

It does this by embedding the page's ->index into the pte which wants to map
the page.  This is arch-specific, and I only have ia32, ppc64 and x86_64 done.

So if&when this hits the tree, it will break other architectures.  It's a
five-minute-fix.

Four things need to be provided:

pte_t pgoff_to_pte(unsigned long pgoff)

    Return a pte_t which contains as many of the lower bits of pgoff as
    you can feasibly pack into a pte.

    You'll probably need to reserve at least two bits - one for
    not-present and one to say "this is a pte_file pte".

unsigned long pte_to_pgoff(pte_t pte)

    Extract the unsigned long from a pte.

int pte_file(pte_t)

    Return true if the pte is a "file pte".  This is where you'll need to
    use the magical reserved bit to distinguish this from a swapped out pte.

PTE_FILE_MAX_BITS	(a constant)

    Tells the kernel how many bits of the file offset the architecture is
    capable of placing in the pte, via pgoff_to_pte().  ia32 sets this to 29
    in non-PAE mode, 32 in PAE mode (CONFIG_HIGHMEM64G)


As an example, here is the x86_64 implementation (the comment next to
_PAGE_FILE is wrong, btw.  These are not swapcache pages)
The ia32 version of this code is right at the start of the the main patch, at

http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.5/2.5.65/2.5.65-mm3/broken-out/remap-file-pages-2.5.63-a1.patch


Thanks.


diff -puN include/asm-x86_64/pgtable.h~file-offset-in-pte-x86_64 include/asm-x86_64/pgtable.h
--- 25/include/asm-x86_64/pgtable.h~file-offset-in-pte-x86_64	2003-03-13 04:45:57.000000000 -0800
+++ 25-akpm/include/asm-x86_64/pgtable.h	2003-03-13 04:45:57.000000000 -0800
@@ -151,6 +151,7 @@ static inline void set_pml4(pml4_t *dst,
 #define _PAGE_ACCESSED	0x020
 #define _PAGE_DIRTY	0x040
 #define _PAGE_PSE	0x080	/* 2MB page */
+#define _PAGE_FILE	0x040	/* pagecache or swap */
 #define _PAGE_GLOBAL	0x100	/* Global TLB entry */
 
 #define _PAGE_PROTNONE	0x080	/* If not present */
@@ -245,6 +246,7 @@ extern inline int pte_exec(pte_t pte)		{
 extern inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
 extern inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
 extern inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_RW; }
+static inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
 
 extern inline pte_t pte_rdprotect(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_USER)); return pte; }
 extern inline pte_t pte_exprotect(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_USER)); return pte; }
@@ -330,6 +332,11 @@ static inline pgd_t *current_pgd_offset_
 #define	pmd_bad(x)	((pmd_val(x) & (~PTE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE )
 #define pfn_pmd(nr,prot) (__pmd(((nr) << PAGE_SHIFT) | pgprot_val(prot)))
 
+
+#define pte_to_pgoff(pte) ((pte_val(pte) & PHYSICAL_PAGE_MASK) >> PAGE_SHIFT)
+#define pgoff_to_pte(off) ((pte_t) { ((off) << PAGE_SHIFT) | _PAGE_FILE })
+#define PTE_FILE_MAX_BITS __PHYSICAL_MASK_SHIFT
+
 /* PTE - Level 1 access. */
 
 /* page, protection -> pte */
diff -puN include/asm-x86_64/page.h~file-offset-in-pte-x86_64 include/asm-x86_64/page.h
--- 25/include/asm-x86_64/page.h~file-offset-in-pte-x86_64	2003-03-13 04:45:57.000000000 -0800
+++ 25-akpm/include/asm-x86_64/page.h	2003-03-13 04:48:53.000000000 -0800
@@ -69,8 +69,9 @@ typedef struct { unsigned long pgprot; }
 /* See Documentation/x86_64/mm.txt for a description of the memory map. */
 #define __START_KERNEL		0xffffffff80100000
 #define __START_KERNEL_map	0xffffffff80000000
-#define __PAGE_OFFSET           0x0000010000000000
-#define __PHYSICAL_MASK		0x000000ffffffffff
+#define __PAGE_OFFSET           0x0000010000000000	/* 1 << 40 */
+#define __PHYSICAL_MASK_SHIFT	40
+#define __PHYSICAL_MASK		((1UL << __PHYSICAL_MASK_SHIFT) - 1)
 
 #define KERNEL_TEXT_SIZE  (40UL*1024*1024)
 #define KERNEL_TEXT_START 0xffffffff80000000UL 

_



----- End forwarded message -----

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
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Hello,

apologies upfront as this question is more about HW than parisc-linux, 
but as some pretty knowledgable folks hang out here I though I'll give 
it a shot.

History of the problem:

Got a J200, powered up fine but the firmware could not see the hard 
drive on the FW SCSI. It did find devices on the narrow SCSI. I also put 
in a known good drive on the FW, same thing. Both drives are HP supplied 
  Seagates (HP firmware).

Booted linux off CD and linux found the disk and could use it. 
Installation went with no problem, just could not boot off the HD. I 
could boot the system using the CD and changing root device and ramdisk 
in IPL.

While troubleshooting the boot problem I set the fastboot off - bad idea 
! Now the system stops with FLT 3000 early on.

Googling around I found that this may be a corrupted bootrom, which in 
turn may not be a true flash memory in this machine (can anybody confirm 
this ?). The battery on the mainboard is pretty much dead, but a fresh 
one didn't change anything.

Could it be the FLT 3000 is caused by the battery going dead and the 
system loosing some essential information ?

Any way to recover it ?

Thx,

	Christian







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Christian,
It doesn't sound good for you.  If the boot ROM battery went completely dead, things like the Software ID, system model number, and system serial number would be gone.  The only way to recover those things is through an HP tech like myself, but without a service contract the T&M charges are pretty high.  There is a program we run that allows us to reset that information.  The program is not licenced to anyone to run, not even resellers.  HP sued a bunch of companies about 5 years ago for using it to convert older HP UNIX hardware to MPE hardware.  The hardware checks to make sure it has a valid serial number and model number before booting, but from what I remember about cases like this it should still get to the boot handler and not fail so early in the self-test.  Init 3000 is one of the
  first stages of the self test where the machine starts applying power.  It almost sounds like you have either a system board failure or something wrong in the power sub-systems.  All the fastboot option does is turn the extensive memory tests on or off.  Setting it off would cause the machine to run all the extra memory tests instead of just initializing the memory as with fastboot on.  If you encountered a fault there the fault code would be in the 7xxx range.  A corrupted boot ROM could cause this to happen with the hang at init 3000 since the boot ROM tells the system how to run the self tests.  Unfortunately on HP 9000 systems, once the boot ROM is corrupted, only the factory can reload it which requires us to do a system card replacement.  Bottom line is, looks like the system card
  is dead and needs to be replaced.  This would require an HP tech to reset the info mentioned earlier on the new system card once installed.
derek
 Christian Suder <csuder@cisco.com> wrote:Hello,

apologies upfront as this question is more about HW than parisc-linux, 
but as some pretty knowledgable folks hang out here I though I'll give 
it a shot.

History of the problem:

Got a J200, powered up fine but the firmware could not see the hard 
drive on the FW SCSI. It did find devices on the narrow SCSI. I also put 
in a known good drive on the FW, same thing. Both drives are HP supplied 
Seagates (HP firmware).

Booted linux off CD and linux found the disk and could use it. 
Installation went with no problem, just could not boot off the HD. I 
could boot the system using the CD and changing root device and ramdisk 
in IPL.

While troubleshooting the boot problem I set the fastboot off - bad idea 
! Now the system stops with FLT 3000 early on.

Googling around I found that this may be a corrupted bootrom, which in 
turn may not be a true flash memory in this machine (can anybody confirm 
this ?). The battery on the mainboard is pretty much dead, but a fresh 
one didn't change anything.

Could it be the FLT 3000 is caused by the battery going dead and the 
system loosing some essential information ?

Any way to recover it ?

Thx,

Christian





_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


---------------------------------
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<P>Christian,
<P>It doesn't sound good for you.&nbsp; If the boot ROM battery went completely dead, things like the Software ID, system model number, and system serial number would be gone.&nbsp; The only way to recover those things is through an HP tech like myself, but without a service contract the T&amp;M charges are pretty high.&nbsp; There is a program we run that allows us to reset that information.&nbsp; The program is not licenced to anyone to run, not even resellers.&nbsp; HP sued a bunch of companies about 5 years ago for using it to convert older HP UNIX hardware to MPE hardware.&nbsp; The hardware checks to make sure it has a valid serial number and model number before booting, but from what I remember about cases like this it should still get to the boot handler and not fail so early in th
 e self-test.&nbsp; Init 3000 is one of the first stages of the self test where the machine starts applying power.&nbsp; It almost sounds like you have either a system board failure or something wrong in the power sub-systems.&nbsp; All the fastboot option does is turn the extensive memory tests on or off.&nbsp; Setting it&nbsp;off would cause the machine to run all the extra memory tests instead of just initializing the memory as with fastboot on.&nbsp; If you encountered a fault there the fault code would be in the 7xxx range.&nbsp; A corrupted boot ROM could cause this to happen with the hang at init 3000 since the boot ROM tells the system how to run the self tests.&nbsp; Unfortunately on HP 9000 systems, once the boot ROM is corrupted, only the factory can reload it which requires us
  to do a system card replacement.&nbsp; Bottom line is, looks like the system card is dead and needs to be replaced.&nbsp; This would require an HP tech to reset the info&nbsp;mentioned earlier&nbsp;on&nbsp;the new system card&nbsp;once installed.
<P>derek
<P>&nbsp;<B><I>Christian Suder &lt;csuder@cisco.com&gt;</I></B> wrote:
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Hello,<BR><BR>apologies upfront as this question is more about HW than parisc-linux, <BR>but as some pretty knowledgable folks hang out here I though I'll give <BR>it a shot.<BR><BR>History of the problem:<BR><BR>Got a J200, powered up fine but the firmware could not see the hard <BR>drive on the FW SCSI. It did find devices on the narrow SCSI. I also put <BR>in a known good drive on the FW, same thing. Both drives are HP supplied <BR>Seagates (HP firmware).<BR><BR>Booted linux off CD and linux found the disk and could use it. <BR>Installation went with no problem, just could not boot off the HD. I <BR>could boot the system using the CD and changing root device and ramdisk <BR>in IPL.<BR><BR>While troub
 leshooting the boot problem I set the fastboot off - bad idea <BR>! Now the system stops with FLT 3000 early on.<BR><BR>Googling around I found that this may be a corrupted bootrom, which in <BR>turn may not be a true flash memory in this machine (can anybody confirm <BR>this ?). The battery on the mainboard is pretty much dead, but a fresh <BR>one didn't change anything.<BR><BR>Could it be the FLT 3000 is caused by the battery going dead and the <BR>system loosing some essential information ?<BR><BR>Any way to recover it ?<BR><BR>Thx,<BR><BR>Christian<BR><BR><BR><BR><BR><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you 
 Yahoo!?<br>
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Thanks Derek,

might have been just coincidence that the fault showed after I switched 
the fastboot. The machine was a freebie so no big deal.

	Christian


Derek Engelhaupt wrote:
> Christian,
> 
> It doesn't sound good for you.  If the boot ROM battery went completely 
> dead, things like the Software ID, system model number, and system 
> serial number would be gone.  The only way to recover those things is 
> through an HP tech like myself, but without a service contract the T&M 
> charges are pretty high.  There is a program we run that allows us to 
> reset that information.  The program is not licenced to anyone to run, 
> not even resellers.  HP sued a bunch of companies about 5 years ago for 
> using it to convert older HP UNIX hardware to MPE hardware.  The 
> hardware checks to make sure it has a valid serial number and model 
> number before booting, but from what I remember about cases like this it 
> should still get to the boot handler and not fail so early in the 
> self-test.  Init 3000 is one of the first stages of the self test where 
> the machine starts applying power.  It almost sounds like you have 
> either a system board failure or someth ing wrong in the power 
> sub-systems.  All the fastboot option does is turn the extensive memory 
> tests on or off.  Setting it off would cause the machine to run all the 
> extra memory tests instead of just initializing the memory as with 
> fastboot on.  If you encountered a fault there the fault code would be 
> in the 7xxx range.  A corrupted boot ROM could cause this to happen with 
> the hang at init 3000 since the boot ROM tells the system how to run the 
> self tests.  Unfortunately on HP 9000 systems, once the boot ROM is 
> corrupted, only the factory can reload it which requires us to do a 
> system card replacement.  Bottom line is, looks like the system card is 
> dead and needs to be replaced.  This would require an HP tech to reset 
> the info mentioned earlier on the new system card once installed.
> 
> derek
> 
>  */Christian Suder <csuder@cisco.com>/* wrote:
> 
>     Hello,
> 
>     apologies upfront as this question is more about HW than parisc-linux,
>     but as some pretty knowledgable folks hang out here I though I'll give
>     it a shot.
> 
>     History of the problem:
> 
>     Got a J200, powered up fine but the firmware could not see the hard
>     drive on the FW SCSI. It did find devices on the narrow SCSI. I also
>     put
>     in a known good drive on the FW, same thing. Both drives are HP
>     supplied
>     Seagates (HP firmware).
> 
>     Booted linux off CD and linux found the disk and could use it.
>     Installation went with no problem, just could not boot off the HD. I
>     could boot the system using the CD and changing root device and ramdisk
>     in IPL.
> 
>     While troubleshooting the boot problem I set the fastboot off - bad
>     idea
>     ! Now the system stops with FLT 3000 early on.
> 
>     Googling around I found that this may be a corrupted bootrom, which in
>     turn may not be a true flash memory in this machine (can anybody
>     confirm
>     this ?). The battery on the mainboard is pretty much dead, but a fresh
>     one didn't change anything.
> 
>     Could it be the FLT 3000 is caused by the battery going dead and the
>     system loosing some essential information ?
> 
>     Any way to recover it ?
> 
>     Thx,
> 
>     Christian
> 
> 
> 
> 
> 
>     _______________________________________________
>     parisc-linux mailing list
>     parisc-linux@lists.parisc-linux.org
>     http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
> ------------------------------------------------------------------------
> Do you Yahoo!?
> Yahoo! Platinum 
> <http://rd.yahoo.com/platinum/evt=8162/*http://platinum.yahoo.com/splash.html> 
> - Watch CBS' NCAA March Madness, live on your desktop 
> <http://rd.yahoo.com/platinum/evt=8162/*http://platinum.yahoo.com/splash.html>! 
> 




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Hi Grant,

Grant Grundler wrote:

>cpqfc driver loads but still finds no devices on the FC hub.
>
>  
>
Is a FC hub is required to expect to use this driver (under hpux we used 
this card directly connected to fc of a XP512 diskarray)?

Thanks,
    Joel






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On Sun, Mar 23, 2003 at 02:16:01PM +1100, Keith Owens wrote:
> This version of modutils is functionally identical to 2.4.23 except for
> those architectures that have function descriptors, i.e. ia64 and
> ppc64.

parisc also has function descriptors.  what needs to happen for us?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sun, 23 Mar 2003 03:23:18 +0000, 
Matthew Wilcox <willy@debian.org> wrote:
>On Sun, Mar 23, 2003 at 02:16:01PM +1100, Keith Owens wrote:
>> This version of modutils is functionally identical to 2.4.23 except for
>> those architectures that have function descriptors, i.e. ia64 and
>> ppc64.
>
>parisc also has function descriptors.  what needs to happen for us?

Index: 24.3/include/util.h
--- 24.3/include/util.h Sun, 23 Mar 2003 13:34:28 +1100 kaos (modutils-2.4/51_util.h 1.4 644)
+++ 24.3(w)/include/util.h Sun, 23 Mar 2003 14:28:36 +1100 kaos (modutils-2.4/51_util.h 1.4 644)
@@ -96,7 +96,7 @@ void gzf_close(int fd);
 #define SYMPREFIX "__insmod_";
 extern const char symprefix[10];	/* Must be sizeof(SYMPREFIX), including nul */
 
-#if defined(ARCH_ia64) || defined(ARCH_ppc64)
+#if defined(ARCH_ia64) || defined(ARCH_ppc64) || defined(ARCH_hppa64)
 #define HAS_FUNCTION_DESCRIPTORS
 #endif
 



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> -#if defined(ARCH_ia64) || defined(ARCH_ppc64)
> +#if defined(ARCH_ia64) || defined(ARCH_ppc64) || defined(ARCH_hppa64)
>  #define HAS_FUNCTION_DESCRIPTORS
>  #endif

The 32-bit hppa port also has function descriptors.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Sat, 22 Mar 2003 22:37:43 -0500 (EST), 
"John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:
>> -#if defined(ARCH_ia64) || defined(ARCH_ppc64)
>> +#if defined(ARCH_ia64) || defined(ARCH_ppc64) || defined(ARCH_hppa64)
>>  #define HAS_FUNCTION_DESCRIPTORS
>>  #endif
>
>The 32-bit hppa port also has function descriptors.

They keep coming out of the woodwork :(  Any more architectures using
function descriptors?  Just add them to the list below.

Index: 24.3/include/util.h
--- 24.3/include/util.h Sun, 23 Mar 2003 13:34:28 +1100 kaos (modutils-2.4/51_util.h 1.4 644)
+++ 24.3(w)/include/util.h Sun, 23 Mar 2003 14:40:06 +1100 kaos (modutils-2.4/51_util.h 1.4 644)
@@ -96,7 +96,7 @@ void gzf_close(int fd);
 #define SYMPREFIX "__insmod_";
 extern const char symprefix[10];	/* Must be sizeof(SYMPREFIX), including nul */
 
-#if defined(ARCH_ia64) || defined(ARCH_ppc64)
+#if defined(ARCH_ia64) || defined(ARCH_ppc64) || defined(ARCH_hppa) || defined(ARCH_hppa64)
 #define HAS_FUNCTION_DESCRIPTORS
 #endif
 



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Subject: Re: [parisc-linux] FC driver?
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On Sat, Mar 22, 2003 at 09:58:59PM +0000, Joel Soete wrote:
> Is a FC hub is required to expect to use this driver (under hpux we used 
> this card directly connected to fc of a XP512 diskarray)?

I don't think so. I just happen to have the couple of disks/hosts all
connected to a pair of hubs.

grant


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From: Geert Uytterhoeven <geert@linux-m68k.org>
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Subject: [parisc-linux] Re: Linux 2.5.65-ac2 (drivers/char/genrtc.c compile failure on i386)
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On Sat, 22 Mar 2003, Marco Roeland wrote:
> On Friday March 21st 2003 at 12:41 Alan Cox wrote:
> > Linux 2.5.65-ac2
> >       ...
> > o	M68K rtc updates				(Geert Uytterhoeven)
> 
> The file drivers/char/genrtc.c was updated, but include/arch-generic/rtc.h
> which is used on i386 wasn't (yet?), leading to compile failures on i386:
> (the missing define is only the first symptom)

Oops, until last Friday I didn't even know genrtc was used on ia32...

Anyway, can you please give this a try? I also updated PPC and PA-RISC, the
other two known users of genrtc I forgot to update.

--- linux-2.5.x/include/asm-generic/rtc.h.orig	Mon Feb 10 21:59:25 2003
+++ linux-2.5.x/include/asm-generic/rtc.h	Sun Mar 23 11:47:24 2003
@@ -22,9 +22,8 @@
 #define RTC_AIE 0x20		/* alarm interrupt enable */
 #define RTC_UIE 0x10		/* update-finished interrupt enable */
 
-extern void gen_rtc_interrupt(unsigned long);
-
 /* some dummy definitions */
+#define RTC_BATT_BAD 0x100	/* battery bad */
 #define RTC_SQWE 0x08		/* enable square-wave output */
 #define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
 #define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
@@ -43,7 +42,7 @@
 	return uip;
 }
 
-static inline void get_rtc_time(struct rtc_time *time)
+static inline unsigned int get_rtc_time(struct rtc_time *time)
 {
 	unsigned long uip_watchdog = jiffies;
 	unsigned char ctrl;
@@ -108,6 +107,8 @@
 		time->tm_year += 100;
 
 	time->tm_mon--;
+
+	return RTC_24H;
 }
 
 /* Set the current date and time in the real time clock. */
--- linux-2.5.x/include/asm-parisc/rtc.h.orig	Wed Aug 28 08:33:46 2002
+++ linux-2.5.x/include/asm-parisc/rtc.h	Sun Mar 23 11:52:15 2003
@@ -24,7 +24,7 @@
 #define RTC_AIE 0x20		/* alarm interrupt enable */
 #define RTC_UIE 0x10		/* update-finished interrupt enable */
 
-extern void gen_rtc_interrupt(unsigned long);
+#define RTC_BATT_BAD 0x100	/* battery bad */
 
 /* some dummy definitions */
 #define RTC_SQWE 0x08		/* enable square-wave output */
@@ -44,14 +44,14 @@
 	{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
 };
 
-static int get_rtc_time(struct rtc_time *wtime)
+static inline unsigned int get_rtc_time(struct rtc_time *wtime)
 {
 	struct pdc_tod tod_data;
 	long int days, rem, y;
 	const unsigned short int *ip;
 
 	if(pdc_tod_read(&tod_data) < 0)
-		return -1;
+		return RTC_24H | RTC_BATT_BAD;
 
 	
 	// most of the remainder of this function is:
@@ -93,7 +93,7 @@
 	wtime->tm_mon = y;
 	wtime->tm_mday = days + 1;
 	
-	return 0;
+	return RTC_24H;
 }
 
 static int set_rtc_time(struct rtc_time *wtime)
--- linux-2.5.x/include/asm-ppc/rtc.h.orig	Tue Feb 18 10:08:44 2003
+++ linux-2.5.x/include/asm-ppc/rtc.h	Sun Mar 23 11:47:31 2003
@@ -35,15 +35,14 @@
 #define RTC_AIE 0x20		/* alarm interrupt enable */
 #define RTC_UIE 0x10		/* update-finished interrupt enable */
 
-extern void gen_rtc_interrupt(unsigned long);
-
 /* some dummy definitions */
+#define RTC_BATT_BAD 0x100	/* battery bad */
 #define RTC_SQWE 0x08		/* enable square-wave output */
 #define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
 #define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
 #define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
 
-static inline void get_rtc_time(struct rtc_time *time)
+static inline unsigned int get_rtc_time(struct rtc_time *time)
 {
 	if (ppc_md.get_rtc_time) {
 		unsigned long nowtime;
@@ -55,6 +54,7 @@
 		time->tm_year -= 1900;
 		time->tm_mon -= 1; /* Make sure userland has a 0-based month */
 	}
+	return RTC_24H;
 }
 
 /* Set the current date and time in the real time clock. */

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [Preliminary] HPPA Patches for glibc 2.3.2
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Hackers,

The following is the set of preliminary patches allows HPPA to build a
semi-functional 32-bit GLibc (against upstream CVS head as of today).

http://www.baldric.uwo.ca/~carlos/glibc-2.3.2-patches.tar.gz

I'm almost certain that I _don't_ have the sysdep-cancel code correctly
implemented, but I'll have another go when I get some more free time.

Please do not commit this to the CVS, this is purely experimental for
anyone who wants to try building upstream source + patches for HPPA. I
can think of atleast 2 people who might, so I'm providing these patches
as a snapshot of my current work.

Comments on sysdep-cancel.h changes are more than welcome since it has
to be wrong because the tst-cancel* failures are blatent (and my PA
assembly prolly has a bug).

Cheers,
Carlos.



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>-- Original Message --
>Date: Sat, 22 Mar 2003 23:24:54 -0700
>To: Joel Soete <joel.soete@tiscali.be>
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] FC driver?
>From: grundler@dsl2.external.hp.com (Grant Grundler)
>
>
>On Sat, Mar 22, 2003 at 09:58:59PM +0000, Joel Soete wrote:
>> Is a FC hub is required to expect to use this driver (under hpux we used
>
>> this card directly connected to fc of a XP512 diskarray)?
>
>I don't think so. I just happen to have the couple of disks/hosts all
>connected to a pair of hubs.

Ah ok (but as I have no doc I do not progress a lot and so still hoppe answer
from Martin :)

Thanks,
    Joel


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Hello again,

I have been working on tracking this down some more, and I think I found
something odd.  I just wanted to verify this is an anomaly (and
potentially the problem) or if this is the correct behavior, understand
why.


I am starting to think the kernel is doing the correct thing and
glibc is causing the problem ... based on debug output from i386
and just my general understanding (or lack of understanding :))
of the elf file format.

The bootstrap_map.l_addr was printed using _dl_debug_printf right
after the following line in glibc-2.3.1/elf/rtld.c:

	      ELF_DYNAMIC_RELOCATE (&bootstrap_map, 0, 0);

The ENTRY_POINT, _start, and user_entry line was added as the first
line of code in the function dl_main in glibc-2.3.1/elf/rtld.c.

This is the debug output on hppa:
---------------------------------
rbrad@vega:~/glibc-2.3.1/hppa-linux/obj/elf$ ./ld.so --verify /bin/sh

05626:  bootstrap_map.l_addr: 41000000
05626:  ENTRY_POINT: 41027162 _start: 41027162 user_entry: 41001ff0


This is the Entry point address from the ld.so library on hppa:
---------------------------------------------------------------
rbrad@vega:~/glibc-2.3.1/hppa-linux/obj/elf$ readelf -a ld.so | grep
Entry
  Entry point address:               0x1ff0




This is the debug output on i386:
---------------------------------
rbrad@beavis:~/debug/glibc-2.3.1/i386-linux/obj/elf$ ./ld.so --verify
/bin/sh
18878:  bootstrap_map.l_addr: 80000000
18878:  ENTRY_POINT: 80000b10 _start: 80000b10 user_entry: 80000b10


This is the Entry point address from the ld.so library on i386:
---------------------------------------------------------------
rbrad@beavis:~glibc-2.3.1/i386-linux/obj/elf$ readelf -a ld.so | grep
Entry
  Entry point address:               0xb10



The i386 library makes sense to me: the bootstrap_map.l_addr + the
_start == the user_entry point. On hppa, this is not true, and I 
do not understand why.  The reason why this works when the AT_ENTRY
aux header is not added is because the user_entry defaults to
ENTRY_POINT, and is modified iff the aux AT_ENTRY header is present.
[Note: this code is at:
   glibc-2.3.1/sysdeps/generic/dl-sysdep.c:_dl_sysdep_start()]


Is there a bug in the dynamic loader for hppa that doesn't load the 
address at load_address + _start?  Or can someone explain why there
is an additional 0x25172 byte offset for the entry point? 

I will keep digging around and see what I can dig up, but without
understanding how the dynamic loader works, I feel pretty blind.

Thanks,

- Ryan

P.S. Please cc me on any responses... I am not subscribed to this
list.


-- 
Ryan Bradetich <rbradetich@uswest.net>



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Subject: Re: [parisc-linux] /lib/ld.so.1 (glibc) issues on parisc-linux 2.5
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Ryan Bradetich <rbradetich@uswest.net> writes:

|> Hello again,
|> 
|> I have been working on tracking this down some more, and I think I found
|> something odd.  I just wanted to verify this is an anomaly (and
|> potentially the problem) or if this is the correct behavior, understand
|> why.
|> 
|> 
|> I am starting to think the kernel is doing the correct thing and
|> glibc is causing the problem ... based on debug output from i386
|> and just my general understanding (or lack of understanding :))
|> of the elf file format.
|> 
|> The bootstrap_map.l_addr was printed using _dl_debug_printf right
|> after the following line in glibc-2.3.1/elf/rtld.c:
|> 
|> 	      ELF_DYNAMIC_RELOCATE (&bootstrap_map, 0, 0);
|> 
|> The ENTRY_POINT, _start, and user_entry line was added as the first
|> line of code in the function dl_main in glibc-2.3.1/elf/rtld.c.
|> 
|> This is the debug output on hppa:
|> ---------------------------------
|> rbrad@vega:~/glibc-2.3.1/hppa-linux/obj/elf$ ./ld.so --verify /bin/sh
|> 
|> 05626:  bootstrap_map.l_addr: 41000000
|> 05626:  ENTRY_POINT: 41027162 _start: 41027162 user_entry: 41001ff0

hppa is using function descriptors, AFAIK.  So you'll have to do something
similar to what ia64 and ppc64 are doing.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nrnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."


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On Mon, Mar 24, 2003 at 11:41:18AM +0100, Adriano Galano wrote:
> Hi all:
> 
> I read that IA-64 support PA-RISC instruction mapping. That's mean that I
> can use Linux for PA/RISC (http://www.parisc-linux.org/) in a Itanium 2
> computer?

No.  You certainly can't run a PA-RISC kernel on an IA64 box, just like
you can't run an x86 kernel on an ia64 box.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi Matthew and *:

> On Mon, Mar 24, 2003 at 11:41:18AM +0100, Adriano Galano wrote:
> > Hi all:
> >
> > I read that IA-64 support PA-RISC instruction mapping.
> That's mean that I
> > can use Linux for PA/RISC (http://www.parisc-linux.org/) in
> a Itanium 2
> > computer?
>
> No.  You certainly can't run a PA-RISC kernel on an IA64 box,
> just like
> you can't run an x86 kernel on an ia64 box.
>

Sorry for my newbie questions but:

If IPF support PA-RISC mapping is not easy to "port" the PA/RISC Linux,
excluding architectural changes in the chipset or booting process?

How HP/UX v 11.6 could be offer compatibility between PA/RISC and Itanium 2
systems?

How "exact" is the PA-RISC mapping on the IA-64 core?


> --
> "It's not Hollywood.  War is real, war is primarily not about
> defeat or
> victory, it is about death.  I've seen thousands and
> thousands of dead bodies.
> Do you think I want to have an academic debate on this
> subject?" -- Robert Fisk

Regards,

-Adriano (bryam)
--
Adriano M. Galano Diez
System & Network Engineer
http://www.satec.es
Phone: (+34) 917 089 000
Sourceforge.NET Linux Kernel Foundry Guide http://sf.net/foundry/linuxkernel




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On Mon, Mar 24, 2003 at 01:23:32PM +0100, Adriano Galano wrote:
> If IPF support PA-RISC mapping is not easy to "port" the PA/RISC Linux,
> excluding architectural changes in the chipset or booting process?

Why would you want to?  ia64 already has its own perfectly good Linux port.

> How HP/UX v 11.6 could be offer compatibility between PA/RISC and Itanium 2
> systems?

That's `11i v1.6'.  Quoting from
http://www.hp.com/products1/unix/operating/choice/hp-ux11i_details.html

	PA-RISC binary compatibility

  HP-UX 11i version 1.6 includes the Aries dynamic code translation
  technology as an integrated component. Aries is built on the close
  relationship between the PA-RISC and Intel Itanium instruction sets
  and provides binary compatibility for PA-RISC binaries on the Itanium
  processor family. Aries can be used where performance is not critical
  or where it is not possible to create a native Itanium processor
  family binary.

> How "exact" is the PA-RISC mapping on the IA-64 core?

Not particularly close.  If you look at the assembly language level,
there's a lot of similarities, but there's a lot of differences too.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> FYI.  jsm, any comments?

It doesn't appear to be a problem, since the bit comes out of the swap
entry bits, not the "present" bits, which we don't have any more available
(e.g. _PAGE_FILE can overload _PAGE_ACCESSED, since _PAGE_ACCESSED is
only valid when _PAGE_PRESENT is set).

The main issue is whether to take the bit out of the swap offset or swap
type. i386 went from 24 offset bits and 6 type bits to 24 offset bits and
5 type bits, i.e. they took the bit from the type field. We are currently
at 25 offset bits and 5 type bits.

The offset bits control the maximum swap size for each swap device. The
type bits control the number of possible swap devices. So, one possibility
is to reduce the number of possible swap devices from 32 to 16, rather
than decrease the maximum swap size. But, perhaps since limiting the
maximum swap size would only really have an effect on the 32 bit kernel,
perhaps it would better to leave the maximum number of swap devices at
32 and decrease the maximum swap size (i.e. the maximum swap size
for a swap device would decrease from 128 Gb to 64 Gb for a 32 bit
kernel). This would be the same as i386.

Another possibility would be to split out the SWP_TYPE, SWP_OFFSET
and SWP_ENTRY macros in order to have a 32 bit kernel version and a
64 bit kernel version. Then we could go with 16 swap devices for the
32 bit kernel and even increase the number of swap devices for the
64 bit kernel, since we have a huge number of bits for the offset.

Any opinions?

John


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H3llo,

grundler@dsl2.external.hp.com (Grant Grundler) schrieb:

> > Maybe I'll see whether I can upgrade the machine with more memory...
> that would be a good idea - even for proof of concept.

Do you know a good source to get cheap memory modules for such an old
machine? I'll have a look at ebay...

> > I was there and didn't find a pre-build net-boot image that uses NFS
> > root [...]
> 
> The Net install ISOs are what you want. See
> 	http://www.parisc-linux.org/software/install.html

But as this are ISO files, I need to attach a CD drive, and I don't have
an external SCSI drive lying around. I also doubt I'll find any IDE port
inside my Apollo. That's why I looked for a net-boot image.

I have a floppy drive built in, but on the debian-pa web site I read
that floppy boot is not supported on parisc.

You see, I got this machine for free more than a year ago when our
University put it out of order, and now I just wanted to play a bit with
it. The HPUX installation seems to be severely damaged, and so I wanted
to try linux. I don't mind to put some time into this game, but I don't
want to buy much additional hardware.

PS: I subscribed to the parisc-linux list, so you all don't have to Cc:
me.

Thanks,
Markus


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Le lundi, 24 mar 2003, =E0 18:59 Europe/Paris, Markus Schaber a =E9crit =
:

> H3llo,
>
>>> I was there and didn't find a pre-build net-boot image that uses NFS
>>> root [...]
>>
>> The Net install ISOs are what you want. See
>> 	http://www.parisc-linux.org/software/install.html
>
> But as this are ISO files, I need to attach a CD drive, and I don't=20
> have
> an external SCSI drive lying around. I also doubt I'll find any IDE=20
> port
> inside my Apollo. That's why I looked for a net-boot image.
there are lifimages as well.
you can also get them here:
http://pateam.esiee.fr/cd-images/lifimages/

fwiw, reading the PA-RISC/Linux Boot HOWTO would have told you about=20
them.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=




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> hppa is using function descriptors, AFAIK.  So you'll have to do something
> similar to what ia64 and ppc64 are doing.

Thanks much for the reply!  I will investigate the function descriptors and
see if that accounts for the different in offsets.  If so, I just need to
figure out which side needs to be fixed :)

Thanks!

- Ryan

> Andreas.
> 
> -- 
> Andreas Schwab, SuSE Labs, schwab@suse.de
> SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 N?rnberg
> Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
> "And now for something completely different."
> 

-- 


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>>>>> On Mon, 24 Mar 2003 12:10:37 +0000, Matthew Wilcox <willy@debian.org> said:

  Matthew> On Mon, Mar 24, 2003 at 11:41:18AM +0100, Adriano Galano
  Matthew> wrote:
  >> Hi all:

  >> I read that IA-64 support PA-RISC instruction mapping. That's
  >> mean that I can use Linux for PA/RISC
  >> (http://www.parisc-linux.org/) in a Itanium 2 computer?

  Matthew> No.  You certainly can't run a PA-RISC kernel on an IA64
  Matthew> box, just like you can't run an x86 kernel on an ia64 box.

Ugh, that's not strictly true.  You definitely can boot x86 linux and
windows 98 on Itanium.  I believe the same is true for Itanium 2 if
you have Intel's firmware, though I have never tried that myself.

	--david


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> Another possibility would be to split out the SWP_TYPE, SWP_OFFSET
> and SWP_ENTRY macros in order to have a 32 bit kernel version and a
> 64 bit kernel version. Then we could go with 16 swap devices for the
> 32 bit kernel and even increase the number of swap devices for the
> 64 bit kernel, since we have a huge number of bits for the offset.

My $0.02

a) Keep the swap size the same, and reduce the number of entries.

	= Offers better compatiblity in most situations

b) Split the macro's, keeping the swap size the same, and increase 
   the number of possible devices.

	= Offers size consistency, and benefits to 64-bit kernels.

c.



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On Mon, Mar 24, 2003 at 06:59:58PM +0100, Markus Schaber wrote:
> > The Net install ISOs are what you want. See
> > 	http://www.parisc-linux.org/software/install.html
> 
> But as this are ISO files, I need to attach a CD drive, and I don't have
> an external SCSI drive lying around.

Read about "mount -o loop" (aka loopback).
And I forgot about the lifimages that Thibaut referenced.

...
> I have a floppy drive built in, but on the debian-pa web site I read
> that floppy boot is not supported on parisc.

right

> PS: I subscribed to the parisc-linux list, so you all don't have to Cc:
> me.

me too. But my reply is to you and I cc the list.

grant


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Subject: [parisc-linux] Glibc 2.3.2 failures and possible fixes?
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John, Tausq,

Succeeded in building glibc 2.3.2 with syscall cancellation support, but
I'm pretty sure it's wrong.

The current list of failures includes:

iconvdata/bug-iconv3.out

- This is a new one.

math/test-fenv.out
math/test-float.out
math/test-double.out
math/test-ifloat.out

- We've had the math test failures for a while, would you like it if I
  tried building glibc with gcc head? It's been so long I've forgotten
  if this was really the delayed fp stuff that I fogot to implement :}
  Will get around to testing this more near the end of April.

stdlib/tst-strtod.out
stdlib/bug-strtod.out

- These are not so new, but indicate problems.

libio/tst-mmap-eofsync.out
libio/tst-mmap-fflushsync.out

- New kernel with Tausq's mmap flushing changes should make these go
  away... have to go into the office to install a new kernel.

dlfcn/default.out
dlfcn/tststatic.out

- New, possibly related to syscalls.

posix/annexc.out

- Expected.

linuxthreads/ex8.out
linuxthreads/ecmutex.out
linuxthreads/ex14.out
linuxthreads/ex15.out
linuxthreads/bug-sleep.out
linuxthreads/tst-cancel1.out
linuxthreads/tst-cancel2.out
linuxthreads/tst-cancel3.out
linuxthreads/tst-cancel4.out
linuxthreads/tst-cancel5.out
linuxthreads/tst-cancel6.out
linuxthreads/tst-popen.out
linuxthreads/tst-popen2.out
linuxthreads/tst-cancel-static.out
linuxthreads/tst-cancel-wrappers.out
rt/tst-shm.out
rt/tst-clock.out
rt/tst-aio.out
rt/tst-aio64.out
rt/tst-aio2.out
rt/tst-aio3.out
rt/tst-aio4.out
rt/tst-aio5.out
rt/tst-aio6.out
rt/tst-aio7.out

- I broke a lot of stuff... :}

elf/vismain.out
elf/neededtest.out
elf/neededtest2.out
elf/neededtest3.out
elf/neededtest4.out
elf/circleload1.out

- These have been around for a while, any idea about how to fix them?

Cheers,
Carlos.





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On Mon, Mar 24, 2003 at 04:35:08PM -0500, Carlos O'Donell wrote:
> math/test-fenv.out
> math/test-float.out
> math/test-double.out
> math/test-ifloat.out
> 
> - We've had the math test failures for a while, would you like it if I
>   tried building glibc with gcc head? It's been so long I've forgotten
>   if this was really the delayed fp stuff that I fogot to implement :}
>   Will get around to testing this more near the end of April.

I think this is the mismatch in sizeof(long double) problem again.

> elf/vismain.out
> elf/neededtest.out
> elf/neededtest2.out
> elf/neededtest3.out
> elf/neededtest4.out
> elf/circleload1.out
> 
> - These have been around for a while, any idea about how to fix them?

They've certainly been around since I was hacking on glibc ...

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hello,

Thibaut VARENE <varenet@esiee.fr> schrieb:

> >> The Net install ISOs are what you want. See
> >> 	http://www.parisc-linux.org/software/install.html
> > But as this are ISO files, I need to attach a CD drive, and I don't 
> > have an external SCSI drive lying around. I also doubt I'll find any
> > IDE port inside my Apollo. That's why I looked for a net-boot image.
> there are lifimages as well.
> you can also get them here:
> http://pateam.esiee.fr/cd-images/lifimages/
>
> fwiw, reading the PA-RISC/Linux Boot HOWTO would have told you about 
> them.

I read it, and the _readme_first.txt there, but they don't mention that
those lifimages are prepared for NFS Root opposite to the one I used.
And the NetInst procedure for Debian/i386 uses a RAM-Disk, too, so I
thought those were using a initrd just as the one I got from
ftp://ftp.parisc-linux.org/kernels/. And so I just put it out of my
scope when searching for non-ramdisk images.

But I see that the I have to cross-read everything twice here, my fault.

Thanks for the hint.

Markus


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-------------------
> Hello,
>=20
> Thibaut VARENE <varenet@esiee.fr> schrieb:
>=20
> > >> The Net install ISOs are what you want. See
> > >> 	http://www.parisc-linux.org/software/install.html
> > > But as this are ISO files, I need to attach a CD drive, and I
don't=20
> > > have an external SCSI drive lying around. I also doubt I'll find
any
> > > IDE port inside my Apollo. That's why I looked for a net-boot
image.
> > there are lifimages as well.
> > you can also get them here:
> > http://pateam.esiee.fr/cd-images/lifimages/
> >
> > fwiw, reading the PA-RISC/Linux Boot HOWTO would have told you
about=20
> > them.
>=20
> I read it, and the _readme_first.txt there, but they don't mention
that
> those lifimages are prepared for NFS Root opposite to the one I
used.
> And the NetInst procedure for Debian/i386 uses a RAM-Disk, too, so I
> thought those were using a initrd just as the one I got from
> ftp://ftp.parisc-linux.org/kernels/. And so I just put it out of my
> scope when searching for non-ramdisk images.
>=20
> But I see that the I have to cross-read everything twice here, my
fault.
>=20
> Thanks for the hint.
>=20
> Markus
>=20
>=20
Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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sorry for my previous answer, doomed keyboard shortcut for "send" :P
-------------------
> Hello,
>=20
> Thibaut VARENE <varenet@esiee.fr> schrieb:
>=20
> > >> The Net install ISOs are what you want. See
> > >> 	http://www.parisc-linux.org/software/install.html
> > > But as this are ISO files, I need to attach a CD drive, and I
don't=20
> > > have an external SCSI drive lying around. I also doubt I'll find
any
> > > IDE port inside my Apollo. That's why I looked for a net-boot
image.
> > there are lifimages as well.
> > you can also get them here:
> > http://pateam.esiee.fr/cd-images/lifimages/
> >
> > fwiw, reading the PA-RISC/Linux Boot HOWTO would have told you
about=20
> > them.
>=20
> I read it, and the _readme_first.txt there, but they don't mention
that
> those lifimages are prepared for NFS Root opposite to the one I
used.
actually they aren't: they're prepared for RAMDISK :)
> And the NetInst procedure for Debian/i386 uses a RAM-Disk, too, so I
> thought those were using a initrd just as the one I got from
> ftp://ftp.parisc-linux.org/kernels/. And so I just put it out of my
> scope when searching for non-ramdisk images.
I don't think there's any: indeed, if you have read the boot howto,
you'd have noticed that nfs-root images are very specific to your
network configuration, since you have to specify the server's IP.

therefore I don't see the point of releasing NFS-root images nobody
could possibly use.

So follow the cookbook in the HOWTO and prepare your own one ;P


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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Hello,

Thibaut VARENE <varenet@esiee.fr> schrieb:

> > And the NetInst procedure for Debian/i386 uses a RAM-Disk, too, so I
> > thought those were using a initrd just as the one I got from
> > ftp://ftp.parisc-linux.org/kernels/. And so I just put it out of my
> > scope when searching for non-ramdisk images.
> I don't think there's any: indeed, if you have read the boot howto,
> you'd have noticed that nfs-root images are very specific to your
> network configuration, since you have to specify the server's IP.
> therefore I don't see the point of releasing NFS-root images nobody
> could possibly use.

That's not correct this way, as I saw in 4.3.2 of the HOWTO, the nfs
root is specified via kernel boot parameters, and as I saw in 4.4.1, one
can interact with palo to provide run-time boot parameters.

> So follow the cookbook in the HOWTO and prepare your own one ;P

I'll do so, at least in case I'm unable to find cheap extension RAM, but
I just found a promising part at EBAY (32MB for 5 EUR, that's cheap
enough to take the risk).


Gru=DF,
Markus

--=20
Schabi's Flohmarkt: http://schabi.de/flohmarkt/

Der Dienstweg ist die Verbindung der Sackgasse mit dem Holzweg!
[DoLi in unibwm.studium]


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Subject: [parisc-linux] linux for HP 9000 715/75
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Dear sirs,
I have an old HP workstation model 9000 715/75, since I would like to 
install a linux OS on it, could you please tel me which one I have to 
looking for?
Are there any Italian distribution of it?
Are there any kind of support close to Milan area?
Are there  italian people having  alredy installed  linux on HP 715/75?
Thanks in advance
Francesco



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Subject: Re: [parisc-linux] linux for HP 9000 715/75
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* Francesco <fghira@tin.it>:

> I have an old HP workstation model 9000 715/75, since I would like to 
> install a linux OS on it, could you please tel me which one I have to 
> looking for?

Debian-HPPA

> Are there any Italian distribution of it?

You can choose the language

> Are there any kind of support close to Milan area?

Il MiLUG (Milano Linux User Group) e' un gruppo di sostenitori di
Linux e del software libero che vivono a Milano e nell'area
metropolitana. MiLUG e' stato fondato nel 1999 e nel marzo 2001 e'
diventato un'associazione culturale la cui missione e' la promozione
del software libero, la sua diffusione e insegnamento e puro e
semplice divertimento. Lobbying per il software libero, promozione di
progetti di sviluppo software, supporto per gli utenti alle prime armi
e attivazione di corsi sono le attivita' principali del MiLUG, che
naturalmente non tralascia il sano divertimento che da' una install
fest con annessi bagordi.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V a)   Ralf.Hildebrandt@charite.de
Charite Campus Mitte                            Tel.  +49 (0)30-450 570-155
Referat V a - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
AIM: ralfpostfix


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From: PATRIC MANBO <patric_manbo@latinmail.com>
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Subject: [parisc-linux] Pls lets work together
Date: Tue, 25 Mar 2003 06:34:36 -0500
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Patric Manbo 
00229-981193 
patmanbo@maktoob.com 

Greetings, 

I crave your indulgence as I contact you in such a surprising manner. But I respectfully insist you read this letter carefully as I am optimistic it will open doors for unimaginable financial reward for both of us. 

This business transaction might not fall within the wide spectrum 
of your business activities, but I plead your assistance, as your 
flair for profitable business is needed. 

Permit me to introduce myself, I am Mr.Patric Manbo , personal account Manager Vladimir Stankov in Continental bank Benin,I am writing this letter to ask for your support and co-operation to carry out this business opportunity in my department. 

Every five years, Benin banks transfer to its treasury millions 
of dollars of unclaimed deceased depositors funds in compliance 
with the banking laws and guidelines, in majority of cases with 
reference to my bank-Continental bank , the money normally runs into several millions of dollars. 

A foreigner, Late Engineer Vladimir Stankov, an Oil Merchant/Contractor in Benin ,until his death four years ago in a ghastly air crash has a closing balance of US9,500,000.00(Nine Million,Five Hundred Thousand Dollars)Ever since his death and up till this time of writing, no next-of-kin or relation of his has come forward to claim his money with us. Fervent valuable efforts have been made by Continentak bank to get in touch with any of the Stankov`s family or relatives but proved to no avail. 

Naturally, as long as Vladimir money remains unclaimed, the bank 
remains richer in free funds with his money. However, with my position, 

I can present you to claim the fund as a relative/next of kin if 
you agree with me on private basis. Yes, I can present you. 

The request for you as next of kin in this business is occasioned 
by the fact that the customer was a foreigner and a Beninios cannot stand as next of kin to a foreigner,Hence, I plead for your assistance with the intention of getting this unclaimed money amounting to US9,500,000.00 (Nine Million, Five Hundred Thousand Dollars Only) transferred into a company/private bank account that you will present. 

You stand to gain a negotiable percentage of the fund if you agree to help me actualize this opportunity I will not contact any other person until I am convinced that you are not interested in this proposal. 

Contact me immediately indicating your willingness and also give 
your direct and confidential fax and phone numbers for the effective communication that this transaction requires. 

I will furnish you with the procedure and also enlighten you on 
how the funds will be disbursed and shared on receipt of your response. 

I will also require your advice in the areas of investment as 
I plan to establish a business venture in your country with my share. 

Please reach me only on this private email address:Patmanbo@maktoob.com 
or Tel:00229-981193 

Remember that a business of this nature needs to be 
kept confidential. 

Yours Sincerely, 

PATRIC MANBO 



_________________________________________________________
http://www.latinmail.com.  Gratuito, latino y en espaol.



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Hi Carlos,

>
>John, Tausq,
>
>Succeeded in building glibc 2.3.2 with syscall cancellation support, but
>I'm pretty sure it's wrong.
>
I am less luky.

I grab src of glibc-2.3.2 from ftp.gnu and aply your patches and try to rebuild
on an unstable debian (update this 20030324).

unfortunately I got the following err:

gcc-3.2 dl-reloc.c -c -std=gnu99 -O2 -Wall -Winline -Wstrict-prototypes -Wwrite-strings
-fstrict-aliasing -g -pipe      -I../include -I.
-I/Develop/tools/glibc/glibc-2.3.2/hppa-linux/obj/elf -I.. -I../libio  -I/Develop/tools/glibc/glibc-2.3.2/hppa-linux/obj
-I../sysdeps/hpp
a/elf -I../linuxthreads/sysdeps/unix/sysv/linux/hppa -I../linuxthreads/sysdeps/unix/sysv/linux
-I../linuxthreads/sysdeps/pthread -I../sys
deps/pthread -I../linuxthreads/sysdeps/unix/sysv -I../linuxthreads/sysdeps/unix
-I../linuxthreads/sysdeps/hppa -I../sysdeps/unix/sysv/lin
ux/hppa -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common
-I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps
/unix/sysv -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/hppa/hppa1.1
-I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I../sysde
ps/ieee754/dbl-64 -I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa
-I../sysdeps/ieee754 -I../sysdeps/generic/elf -I.
./sysdeps/generic  -nostdinc -isystem /usr/lib/gcc-lib/hppa-linux/3.2.3/include
-isystem /usr/src/linux-2.4.20-pa32-64/include -D_LIBC_RE
ENTRANT -include ../include/libc-symbols.h       -o /Develop/tools/glibc/glibc-2.3.2/hppa-linux/obj/elf/dl-reloc.o
In file included from dynamic-link.h:49,
                 from dl-reloc.c:207:
../sysdeps/hppa/dl-machine.h: In function `_dl_relocate_object': 
../sysdeps/hppa/dl-machine.h:646: conflicting types for `elf_machine_rela_relative'
dynamic-link.h:37: previous declaration of `elf_machine_rela_relative'
make[3]: *** [/Develop/tools/glibc/glibc-2.3.2/hppa-linux/obj/elf/dl-reloc.o]
Error 1
make[3]: Leaving directory `/Develop/tools/glibc/glibc-2.3.2/glibc-2.3.2/elf'
make[2]: *** [elf/subdir_lib] Error 2
make[2]: Leaving directory `/Develop/tools/glibc/glibc-2.3.2/glibc-2.3.2'
make[1]: *** [install] Error 2
make[1]: Leaving directory `/Develop/tools/glibc/glibc-2.3.2/hppa-linux/obj'
make: *** [/Develop/tools/glibc/glibc-2.3.2/hppa-linux/installed-binaries]
Error 2

I also find:

into dynamic-link.h
auto void __attribute__((always_inline))
elf_machine_rela_relative (ElfW(Addr) l_addr, const ElfW(Rela) *reloc,
                           ElfW(Addr) *const reloc_addr);

into sysdeps/hppa/dl-machine.h:
auto void __attribute__((always_inline))
elf_machine_rela_relative (struct link_map *map, Elf32_Addr l_addr,
                           const Elf32_Rela *reloc,
                           Elf32_Addr *const reloc_addr)

Thanks for advise,
    Joel

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> I think this is the mismatch in sizeof(long double) problem again.

I noticed that a couple of libstdc++ tests that used to fail because
of the long double mismatch are fixed with 2.3.1-14 :)

> > elf/vismain.out
> > elf/neededtest.out
> > elf/neededtest2.out
> > elf/neededtest3.out
> > elf/neededtest4.out
> > elf/circleload1.out
> > 
> > - These have been around for a while, any idea about how to fix them?
> 
> They've certainly been around since I was hacking on glibc ...

Are you testing with 3.3?  Some elf tests in the binutils suite
were failing because of the need to canonicalize function pointers.
There were also some tests that failed because we absolutely need
'-fPIC' for tests with shared libraries.  I'd be interested to know
what's causing these.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> I noticed that a couple of libstdc++ tests that used to fail because
> of the long double mismatch are fixed with 2.3.1-14 :)

Really? I didn't even put in patches for -14? :) This is all strictly
from upstream glibc.
 
> > > elf/vismain.out
> > > elf/neededtest.out
> > > elf/neededtest2.out
> > > elf/neededtest3.out
> > > elf/neededtest4.out
> > > elf/circleload1.out
> > > 
> > > - These have been around for a while, any idea about how to fix them?
> > 
> > They've certainly been around since I was hacking on glibc ...
> 
> Are you testing with 3.3?  Some elf tests in the binutils suite
> were failing because of the need to canonicalize function pointers.
> There were also some tests that failed because we absolutely need
> '-fPIC' for tests with shared libraries.  I'd be interested to know
> what's causing these.

I can rebuild it using 3.3 and see if this goes away. Right now I'm
building with 3.2.3. I sure hope getting rid of these is as easy as
building with 3.3!

On a second note, I've completely revamped the sysdep-cancel support
since I must have been smoking crack when I wrote it... so I'm going to
compile another round that should come out much better (hopefully
removing all the linuxthread failures).

Thanks for the feedback!

c.


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On Mon, Mar 24, 2003 at 11:44:47AM -0700, Ryan Bradetich wrote:
> > hppa is using function descriptors, AFAIK.  So you'll have to do something
> > similar to what ia64 and ppc64 are doing.
> 
> Thanks much for the reply!  I will investigate the function descriptors and
> see if that accounts for the different in offsets.  If so, I just need to
> figure out which side needs to be fixed :)
> 

I posted a patch a long time ago to unify function descriptor handling
such that ia64 and pa-risc don't have to reinvent the wheel.


H.J.


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> 
> I also find:
> 
> into dynamic-link.h
> auto void __attribute__((always_inline))
> elf_machine_rela_relative (ElfW(Addr) l_addr, const ElfW(Rela) *reloc,
>                            ElfW(Addr) *const reloc_addr);
> 
> into sysdeps/hppa/dl-machine.h:
> auto void __attribute__((always_inline))
> elf_machine_rela_relative (struct link_map *map, Elf32_Addr l_addr,
>                            const Elf32_Rela *reloc,
>                            Elf32_Addr *const reloc_addr)
> 

Missing patch. My bad. 
I'll update in a few hours with a new sysdep-cancel patch.

Thanks for testing Joel!

c.



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>> 
>> I also find:
>> 
>> into dynamic-link.h
>> auto void __attribute__((always_inline))
>> elf_machine_rela_relative (ElfW(Addr) l_addr, const ElfW(Rela) *reloc,
>>                            ElfW(Addr) *const reloc_addr);
>> 
>> into sysdeps/hppa/dl-machine.h:
>> auto void __attribute__((always_inline))
>> elf_machine_rela_relative (struct link_map *map, Elf32_Addr l_addr,
>>                            const Elf32_Rela *reloc,
>>                            Elf32_Addr *const reloc_addr)
>> 
>
>Missing patch. My bad. 

Don't worry.

>I'll update in a few hours with a new sysdep-cancel patch.

I will waiting for :)

>
>Thanks for testing Joel!
>
You know how much am i interested. I know my knowledge is limited but I try
to do my best. 

Always wellcome and thanks for your attention,
    Joel


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From - Thu Nov 08 21:27:16 2018
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Trap handlers in 2.5
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PA,

I noticed that Randolph made a comment about user traps crashing boxes,
and this sounded like some of changes I made to 2.4 in order to fix a
similar issue. Turns out it might be one of those fixes I forgot to send
to 2.5. Here's a diff against my 2.5 tree.

Please comment.

- Added Conditional Trap handler.
- Added Trap 16.
- Made Trap 17 non fatal.
- Put Trap 15 in a numerically ordered position.

This comes from my reading of the PA 1.1 and 2.0 spec, which may be
flawed, but the following works. It also stops users from FIC'ing into
unmapped pages and crashing the box, something that is wholely
unacceptable.

I don't have the time to commit and test this, would someone like to do
this? I'm busy with glibc right now :(

Index: traps.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/traps.c,v
retrieving revision 1.22
diff -u -p -r1.22 traps.c
--- traps.c	14 Feb 2003 15:46:27 -0000	1.22
+++ traps.c	25 Mar 2003 22:19:35 -0000
@@ -545,19 +545,39 @@ void handle_interruption(int code, struc
 		force_sig_info(SIGFPE, &si, current);
 		return;
 
+	case 13:
+		/* Conditional Trap
+		   The condition succees in an instruction which traps on condition  */
+		si.si_signo = SIGFPE;
+		/* Set to zero, and let the userspace app figure it out from
+		   the insn pointed to by si_addr */
+		si.si_code = 0;
+		si.si_addr = (void *) regs->iaoq[0];
+		force_sig_info(SIGFPE, &si, current);
+		return;											
+		
 	case 14:
 		/* Assist Exception Trap, i.e. floating point exception. */
 		die_if_kernel("Floating point exception", regs, 0); /* quiet */
 		handle_fpe(regs);
 		return;
-
+		
+        case 15:
+		/* Data TLB miss fault/Data page fault */
+		/* Fall thru */
+        case 16:
+		/* Non-access instruction TLB miss fault */
+		/* The instruction TLB entry needed for the target address of the FIC
+		 * is absent, and hardware can't find it, so we get to cleanup */
+		/* Fall thru */
 	case 17:
 		/* Non-access data TLB miss fault/Non-access data page fault */
 		/* TODO: Still need to add slow path emulation code here */
-		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
-		
+		/* TODO: Understand what is meant by the TODO listed
+		 * above this one. (Carlos) */
 		fault_address = regs->ior;
-		parisc_terminate("Non access data tlb fault!",regs,code,fault_address);
+		fault_space = regs->isr;
+		break;
 
 	case 18:
 		/* PCXS only -- later cpu's split this into types 26,27 & 28 */
@@ -567,8 +587,6 @@ void handle_interruption(int code, struc
 			return;
 		}
 		/* Fall Through */

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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] glibc 2.3.2 patches updated, still no working sysdep-cancel
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>I'll update in a few hours with a new sysdep-cancel patch.

Patches updated:
http://www.baldric.uwo.ca/~carlos/glibc-2.3.2-patches.tar.gz

Still no luck on getting sysdep-cancel to work. I'll need another pair
of eyes to look at the assembly in sysdep-cancel.h

c.



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Function descriptors fall behind Sysdep-cancel, Less failures, and ABI files for Roland.
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> I posted a patch a long time ago to unify function descriptor handling
> such that ia64 and pa-risc don't have to reinvent the wheel.

Your patch is definately the correct way to go. When I initially
recommended that Ryan take the issue to the list I didn't realize it was
a function descriptor issue.  

Unfortunately it falls behind the following changes:
	- Sysdep-cancel support.
	- Building glibc without severe testsuite failures
	- Handing Roland the ABI files for HPPA.

After this I plan to follow up on the required function descriptor 
changes, all along the lines of the current ia64/ppc64 implementation.

Current HPPA glibc status:
- New LinuxThreads that doesn't require explicit alignment of locks.
- 2.3.2 builds, various failures.
- Fixing sysdep-cancel support.

I should start sending the patches back here soon.

c.



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Subject: Re: [parisc-linux] glibc 2.3.2 patches updated, still no working sysdep-cancel
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Hi Carlos, 
 
Carlos O'Donell <carlos@baldric.uwo.ca> schrieb am 26.03.03 00:41:24:  
> Patches updated:  
> http://www.baldric.uwo.ca/~carlos/glibc-2.3.2-patches.tar.gz  
>   
> Still no luck on getting sysdep-cancel to work. I'll need another pair  
> of eyes to look at the assembly in sysdep-cancel.h  
  
I was successful to compile the first version of your patches (after fixing the map  
part). Here is the output of  
# /lib/libc.so.6 
GNU C Library stable release version 2.3.2, by Roland McGrath et al. 
Copyright (C) 2003 Free Software Foundation, Inc. 
This is free software; see the source for copying conditions. 
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A 
PARTICULAR PURPOSE. 
Compiled by GNU CC version 3.3 20030226 (prerelease) (SuSE Linux). 
Compiled on a Linux 2.4.19 system on 2003-03-25. 
Available extensions: 
        GNU libio by Per Bothner 
        crypt add-on version 2.1 by Michael Glad and others 
        linuxthreads-0.10 by Xavier Leroy 
        BIND-8.2.3-T5B 
        libthread_db work sponsored by Alpha Processor Inc 
        NIS(YP)/NIS+ NSS modules 0.19 by Thorsten Kukuk 
Report bugs using the `glibcbug' script to <bugs@gnu.org>. 
 
I was not successful to compile your current version: 
 
gcc ../sysdeps/unix/sysv/linux/sigprocmask.c -c -std=gnu99 -O2 -Wall -Winline -W 
strict-prototypes -Wwrite-strings -fstrict-aliasing -g -mpa-risc-1-1      -I../i 
nclude -I. -I/usr/src/packages/BUILD/glibc-2.3.2/cc/signal -I.. -I../libio  -I/u 
sr/src/packages/BUILD/glibc-2.3.2/cc -I../sysdeps/hppa/elf -I../linuxthreads/sys 
deps/unix/sysv/linux/hppa -I../linuxthreads/sysdeps/unix/sysv/linux -I../linuxth 
reads/sysdeps/pthread -I../sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv - 
I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/hppa -I../sysdeps/unix/s 
ysv/linux/hppa -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/c 
ommon -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../ 
sysdeps/unix -I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize- 
32 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/ 
ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa -I../sysdeps/ieee754 -I../sysde 
ps/generic/elf -I../sysdeps/generic  -nostdinc -isystem /usr/lib/gcc-lib/hppa-su 
se-linux/3.3/include -isystem /usr/src/packages/BUILD/kernel-headers -D_LIBC_REE 
NTRANT -include ../include/libc-symbols.h       -o /usr/src/packages/BUILD/glibc 
-2.3.2/cc/signal/sigprocmask.o 
(echo '#include <sysdep.h>'; \ 
 echo 'PSEUDO (__kill, kill, 2)'; \ 
 echo ' ret'; \ 
 echo 'PSEUDO_END(__kill)'; \ 
 echo 'libc_hidden_def (__kill)'; \ 
 echo 'weak_alias (__kill, kill)'; \ 
 echo 'libc_hidden_weak (kill)'; \ 
) | gcc -c  -I../include -I. -I/usr/src/packages/BUILD/glibc-2.3.2/cc/signal -I. 
. -I../libio  -I/usr/src/packages/BUILD/glibc-2.3.2/cc -I../sysdeps/hppa/elf -I. 
./linuxthreads/sysdeps/unix/sysv/linux/hppa -I../linuxthreads/sysdeps/unix/sysv/ 
linux -I../linuxthreads/sysdeps/pthread -I../sysdeps/pthread -I../linuxthreads/s 
ysdeps/unix/sysv -I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/hppa - 
I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu - 
I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysde 
ps/unix/sysv -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 -I.. 
/sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 -I. 
./sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa -I../sysdeps/ 
ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic  -nostdinc -isystem /usr/l 
ib/gcc-lib/hppa-suse-linux/3.3/include -isystem /usr/src/packages/BUILD/kernel-h 
eaders -D_LIBC_REENTRANT -include ../include/libc-symbols.h       -DASSEMBLER    
-x assembler-with-cpp -o /usr/src/packages/BUILD/glibc-2.3.2/cc/signal/kill.o - 
<stdin>: Assembler messages: 
<stdin>:2: Fatal error: Unknown opcode: `do_call_noerrno(kill, 2)' 
make[2]: *** [/usr/src/packages/BUILD/glibc-2.3.2/cc/signal/kill.o] Error 1 
make[2]: Leaving directory `/usr/src/packages/BUILD/glibc-2.3.2/signal' 
make[1]: *** [signal/subdir_lib] Error 2 
 
I still have to look into my patches, if they correct compared to your original 
patches. If you want me to run the test suite on the old version, I can recompile that 
version. 
 
Berthold 
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Subject: Re: [parisc-linux] glibc 2.3.2 patches updated, still no working sysdep-cancel
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"Berthold Gunreben" <b.gunreben@web.de> schrieb am 26.03.03 08:15:30: 
 
> I was not successful to compile your current version:  
 
Sorry, my fault. I am recompiling now. 
 
Berthold 
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On Mon, Mar 24, 2003 at 11:19:08AM -0800, David Mosberger wrote:
> >>>>> On Mon, 24 Mar 2003 12:10:37 +0000, Matthew Wilcox <willy@debian.org> said:
> 
>   Matthew> On Mon, Mar 24, 2003 at 11:41:18AM +0100, Adriano Galano
>   Matthew> wrote:
>   >> Hi all:
> 
>   >> I read that IA-64 support PA-RISC instruction mapping. That's
>   >> mean that I can use Linux for PA/RISC
>   >> (http://www.parisc-linux.org/) in a Itanium 2 computer?
> 
>   Matthew> No.  You certainly can't run a PA-RISC kernel on an IA64
>   Matthew> box, just like you can't run an x86 kernel on an ia64 box.
> 
> Ugh, that's not strictly true.  You definitely can boot x86 linux and
> windows 98 on Itanium.  I believe the same is true for Itanium 2 if
> you have Intel's firmware, though I have never tried that myself.

...And perhaps you don't forget to add support for the chipset in the
x86/hppa kernel. 

Is the Intel's firmware freely distributed or it is
internal only?

Matthieu



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Subject: Re: [parisc-linux] Re: [Linux-ia64] Linux, Itanium and PA/RISC
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To: m.delahaye@esiee.fr (Matthieu Delahaye)
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Hi,

m.delahaye@esiee.fr (Matthieu Delahaye) wrote:

> >   Matthew> No.  You certainly can't run a PA-RISC kernel on an IA64
> >   Matthew> box, just like you can't run an x86 kernel on an ia64
> >   box.
> > Ugh, that's not strictly true.  You definitely can boot x86 linux
> > and windows 98 on Itanium.  I believe the same is true for Itanium 2
> > if you have Intel's firmware, though I have never tried that myself.
> ...And perhaps you don't forget to add support for the chipset in the
> x86/hppa kernel. 

You definitely need IA64 Linux to make real use of an Itanium2 Machine.
(I was able to "play" on an HP 4-Way machine for some weeks.)

However, Itanium chips support X86 Emulation in Hardware, so they can
run any X86 Software without further software support (however, the
software is limited to the X86 capabilities regarding Memory Capacity
etc., and it is _really slow_, every P3/P4/Athlon at the same MHz is
uncomparable.)

As far as I know, the PA-Risc instruction mapping is done with lots of
software help. The concept is a bit like JIT-Compilers in Java. (It is
easier to do this when having a RISC code with equal instruction length
compared to ugly X86 code.) As long as my knowledge is correct, you
therefore cannot run any PA-RISC OS directly on the Hardware, but you
can run PA-RISC Software in any OS that supports the instruction
mapping, maybe one can even run a PA-RISC OS inside a virtual PA-RISC
Machine on Itaniums. (However I don't know any such VM.)

Markus


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Subject: Re: [parisc-linux] glibc 2.3.2 patches updated, still no working sysdep-cancel
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Hi Carlos,

A grab your last patches and original src from ftp.gnu.org and in your patch
glibc23-05b-hppa-sysdep, the second hunk was rejected and so I change it
as follow:
=====
--- glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/sysdep.h.orig	2002-08-26 23:16:19.000000000
+0200
+++ glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/sysdep.h	2003-03-26 12:41:50.000000000
+0100
@@ -101,20 +101,27 @@
    which means
 	ENTRY(name)
 	DO_CALL(...)
-	nop
 	bv 0(2)
 	nop
 */
 
 #define	PSEUDO(name, syscall_name, args)				      \
   ENTRY (name)								      \
-  DO_CALL(syscall_name, args)					ASM_LINE_SEP  \
-  nop
+  DO_CALL(syscall_name, args)					ASM_LINE_SEP 
 
 #undef	PSEUDO_END
 #define	PSEUDO_END(name)						      \
   END (name)
 
+#define	PSEUDO_NOERRNO(name, syscall_name, args)			      \
+  ENTRY (name)								      \
+  DO_CALL_NOERRNO(syscall_name, args)				ASM_LINE_SEP 
+
+#undef	PSEUDO_END_NOERRNO
+#define	PSEUDO_END_NOERRNO(name)					      \
+  END (name)
+ 
+#undef JUMPTARGET
 #define JUMPTARGET(name)	name
 #define SYSCALL_PIC_SETUP	/* Nothing.  */
 
@@ -165,6 +172,13 @@
 0:						ASM_LINE_SEP	\
 	UNDOARGS_##args
 
+#undef	DO_CALL_NOERRNO
+#define DO_CALL_NOERRNO(syscall_name, args)			\
+	DOARGS_##args						\
+	ble  0x100(%sr2,%r0)			ASM_LINE_SEP	\
+	ldi SYS_ify (syscall_name), %r20	ASM_LINE_SEP	\
+	UNDOARGS_##args
+
 #define DOARGS_0 /* nothing */
 #define DOARGS_1 /* nothing */
 #define DOARGS_2 /* nothing */
@@ -183,7 +197,7 @@
 #define UNDOARGS_5 /* nothing */
 #define UNDOARGS_6 /* nothing */
 
-#else
+#else /* !__ASSEMBLER__ */
 
 #undef INLINE_SYSCALL
 #define INLINE_SYSCALL(name, nr, args...)	({		\
@@ -206,6 +220,35 @@
 	__sys_res;						\
 })
 
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
+
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err) \
+  ((unsigned long) (val) >= -4095L)
+
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val, err)        (-(val))
+
+/* Similar to INLINE_SYSCALL but we don't set errno */
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, err, nr, args...) 		\
+({								\
+	long __sys_res;						\
+	{							\
+		register unsigned long __res asm("r28");	\
+		LOAD_ARGS_##nr(args)				\
+		asm volatile(					\
+			"ble  0x100(%%sr2, %%r0)\n\t"		\
+			" ldi %1, %%r20"			\
+			: "=r" (__res)				\
+			: "i" (SYS_ify(name)) ASM_ARGS_##nr	\
+			);					\
+		__sys_res = __res;				\
+	}							\
+	__sys_res;						\
+ })
+
 #define LOAD_ARGS_0()
 #define LOAD_ARGS_1(r26)					\
 	register unsigned long __r26 __asm__("r26") = (unsigned long)r26;	\
=====

Or do I grab bad src?

Joel



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Cc: Matthieu Delahaye <m.delahaye@esiee.fr>, davidm@hpl.hp.com,
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> You definitely need IA64 Linux to make real use of an Itanium2 Machine.
> (I was able to "play" on an HP 4-Way machine for some weeks.)

I wasn't speaking about real use. Just dirty things. I was also reacting
with David's previous mail.

> [...] 
> As far as I know, the PA-Risc instruction mapping is done with lots of
> software help. The concept is a bit like JIT-Compilers in Java. (It is
> easier to do this when having a RISC code with equal instruction length
> compared to ugly X86 code.) As long as my knowledge is correct, you
> therefore cannot run any PA-RISC OS directly on the Hardware, but you
> can run PA-RISC Software in any OS that supports the instruction
> mapping, maybe one can even run a PA-RISC OS inside a virtual PA-RISC
> Machine on Itaniums. (However I don't know any such VM.)

AFAIK, your knowledge correspond to what I know. Never test hppa
applications, but the intel compiler I had was using 32bits libraries. I
had to extract some of them for my PC to move them on the Itanium. 


So as I said before, I was reacting to David's mail explaining with some
firmware modifications it was possible to do this with an Itanium I,
and he wasn't sure for an Itanium II. Or it is urgent for me to find a
dictionnary. I just add to this (for the foolish who want to try) that
at least it is required to add the chipset support so that the
kernel can boot on Itanium II. That's all.

But please be sure I'm not going to try this unless I want to give to
my boss a good reason to put me out. 
[ This is not because some people reading this list and
working with me wants to test an hppa box resistance by launching it
from the 5th level I'll try to publish slackware installation
screenshots on an Itanium II ].

But perhaps I didn't understand and you told me you already try it
following David's explanation ?

Regards,

Matthieu




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From: Markus Schaber <markus.schaber@student.uni-ulm.de>
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Subject: Re: [parisc-linux] Re: [Linux-ia64] Linux, Itanium and PA/RISC
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To: m.delahaye@esiee.fr (Matthieu Delahaye)
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Hi,

m.delahaye@esiee.fr (Matthieu Delahaye) wrote:

> > [...] 
> > As far as I know, the PA-Risc instruction mapping is done with lots
> > of software help. The concept is a bit like JIT-Compilers in Java.
> > (It is easier to do this when having a RISC code with equal
> > instruction length compared to ugly X86 code.) As long as my
> > knowledge is correct, you therefore cannot run any PA-RISC OS
> > directly on the Hardware, but you can run PA-RISC Software in any OS
> > that supports the instruction mapping, maybe one can even run a
> > PA-RISC OS inside a virtual PA-RISC Machine on Itaniums. (However I
> > don't know any such VM.)
> 
> AFAIK, your knowledge correspond to what I know.
[...]
> But perhaps I didn't understand and you told me you already try it
> following David's explanation ?

I didn't want to argue against you, because I think you're right. :-)

I just wanted to clarify the difference between both "legacy"
Architectures that the Itanium claims to support.

Markus


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Subject: Re: [parisc-linux] glibc 2.3.2 patches updated, still no working sysdep-cancel
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> A grab your last patches and original src from ftp.gnu.org and in your patch
> glibc23-05b-hppa-sysdep, the second hunk was rejected and so I change it

CVS head and it will apply fine.

c.


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Subject: Re: [parisc-linux] glibc 2.3.2 patches updated, still no working sysdep-cancel
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Hi Carlos,
>
>A grab your last patches and original src from ftp.gnu.org and in your patch
>glibc23-05b-hppa-sysdep, the second hunk was rejected and so I change it
>as follow:
>=====
>--- glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/sysdep.h.orig	2002-08-26 23:16:19.000000000
>+0200
>+++ glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/sysdep.h	2003-03-26 12:41:50.000000000
>+0100
>@@ -101,20 +101,27 @@
>    which means
> 	ENTRY(name)
> 	DO_CALL(...)
>-	nop
> 	bv 0(2)
> 	nop
> */
> 
> #define	PSEUDO(name, syscall_name, args)				      \
>   ENTRY (name)								      \
>-  DO_CALL(syscall_name, args)					ASM_LINE_SEP  \
>-  nop
>+  DO_CALL(syscall_name, args)					ASM_LINE_SEP 
> 
> #undef	PSEUDO_END
> #define	PSEUDO_END(name)						      \
>   END (name)
> 
>+#define	PSEUDO_NOERRNO(name, syscall_name, args)			      \
>+  ENTRY (name)								      \
>+  DO_CALL_NOERRNO(syscall_name, args)				ASM_LINE_SEP 
>+
>+#undef	PSEUDO_END_NOERRNO
>+#define	PSEUDO_END_NOERRNO(name)					      \
>+  END (name)
>+ 
>+#undef JUMPTARGET
> #define JUMPTARGET(name)	name
> #define SYSCALL_PIC_SETUP	/* Nothing.  */
> 
>@@ -165,6 +172,13 @@
> 0:						ASM_LINE_SEP	\
> 	UNDOARGS_##args
> 
>+#undef	DO_CALL_NOERRNO
>+#define DO_CALL_NOERRNO(syscall_name, args)			\
>+	DOARGS_##args						\
>+	ble  0x100(%sr2,%r0)			ASM_LINE_SEP	\
>+	ldi SYS_ify (syscall_name), %r20	ASM_LINE_SEP	\
>+	UNDOARGS_##args
>+
> #define DOARGS_0 /* nothing */
> #define DOARGS_1 /* nothing */
> #define DOARGS_2 /* nothing */
>@@ -183,7 +197,7 @@
> #define UNDOARGS_5 /* nothing */
> #define UNDOARGS_6 /* nothing */
> 
>-#else
>+#else /* !__ASSEMBLER__ */
> 
> #undef INLINE_SYSCALL
> #define INLINE_SYSCALL(name, nr, args...)	({		\
>@@ -206,6 +220,35 @@
> 	__sys_res;						\
> })
> 
>+#undef INTERNAL_SYSCALL_DECL
>+#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
>+
>+#undef INTERNAL_SYSCALL_ERROR_P
>+#define INTERNAL_SYSCALL_ERROR_P(val, err) \
>+  ((unsigned long) (val) >= -4095L)
>+
>+#undef INTERNAL_SYSCALL_ERRNO
>+#define INTERNAL_SYSCALL_ERRNO(val, err)        (-(val))
>+
>+/* Similar to INLINE_SYSCALL but we don't set errno */
>+#undef INTERNAL_SYSCALL
>+#define INTERNAL_SYSCALL(name, err, nr, args...) 		\
>+({								\
>+	long __sys_res;						\
>+	{							\
>+		register unsigned long __res asm("r28");	\
>+		LOAD_ARGS_##nr(args)				\
>+		asm volatile(					\
>+			"ble  0x100(%%sr2, %%r0)\n\t"		\
>+			" ldi %1, %%r20"			\
>+			: "=r" (__res)				\
>+			: "i" (SYS_ify(name)) ASM_ARGS_##nr	\
>+			);					\
>+		__sys_res = __res;				\
>+	}							\
>+	__sys_res;						\
>+ })
>+
> #define LOAD_ARGS_0()
> #define LOAD_ARGS_1(r26)					\
> 	register unsigned long __r26 __asm__("r26") = (unsigned long)r26;	\
>=====
>
>Or do I grab bad src?
>

Well that help me to complet the rebuild of libc6; excepted that at one moment
I had to kill a 'tst-cancel-stat' because it was eating 99% of cpu usage.
As it was evidently looping, strace -p 31611 shows me hundred of thousand
messages: kill(31610, SIGRT_1)    =-1 (no such process)

hth,
    Joel

Joel


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>> A grab your last patches and original src from ftp.gnu.org and in your
>patch
>> glibc23-05b-hppa-sysdep, the second hunk was rejected and so I change
it
>
>CVS head and it will apply fine.
>
Ah ok (I didn't though to this)

Thanks,
    Joel

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> I had to kill a 'tst-cancel-stat' because it was eating 99% of cpu usage.
> As it was evidently looping, strace -p 31611 shows me hundred of thousand
> messages: kill(31610, SIGRT_1)    =-1 (no such process)

Yes, I've noticed this, and I'm not sure why it's doing that. It's the
only test that fails this way. The rest just SIGSEGV, which again means
I need to keep debugging the syscall/errno code.

I'll post an update after running some tests on my current patches.
Thanks for trying that out Joel. What hardware are you testing this on?

c.


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Well, Itanium's can sort of run any X86 software.

As David was alluding to there are two ways you can boot an Itanium
box, either with an IA32 kernel (a current Pentium based OS) or an
IA64 kernel.

If you boot an IA32 kernel the CPU will behave as an exact Pentium
processor and execute all Pentium code.  The system will be slower
than comparable Pentium processors but it should work exactly the
same.  (Notice that I say `should', I've never done this, there could
be chipset issues, I don't know of anyone who has done this but it
should work.)

If you boot an IA64 kernel then the CPU can execute IA32 user mode
programs.  This means you can't run IA32 device drivers and it also
means you need a fair amount of kernel support in order to run an
IA32 application so the statement `without further software support'
is a little inaccurate.

On Wed, Mar 26, 2003 at 12:51:40PM +0100, Markus Schaber wrote:
>
>...
> 
> However, Itanium chips support X86 Emulation in Hardware, so they can
> run any X86 Software without further software support (however, the
> software is limited to the X86 capabilities regarding Memory Capacity
> etc., and it is _really slow_, every P3/P4/Athlon at the same MHz is
> uncomparable.)
> 
>...

-- 
Don Dugger
"Censeo Toto nos in Kansa esse decisse." - D. Gale
n0ano@n0ano.com
Ph: 303/447-2201


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On Wed, Mar 26, 2003 at 11:07:46AM +0100, Matthieu Delahaye wrote:
> Is the Intel's firmware freely distributed or it is
> internal only?

"freeley available" in the sense that it comes with every Merced box.

I understood David's posting to mean Mckinley machines are available
with firmware from other vendors (SGI, HP, Intel, IBM?, et al) and
those systems will (likely) not boot Win98. I highly doubt HP ZX1
machines will but haven't tried and probably never will.

grant


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Hi,

On 03/26/2003 09:25:35 AM MST n0ano wrote:
>
>Well, Itanium's can sort of run any X86 software.
>
>As David was alluding to there are two ways you can boot an Itanium
>box, either with an IA32 kernel (a current Pentium based OS) or an
>IA64 kernel.
>
>If you boot an IA32 kernel the CPU will behave as an exact Pentium
>processor and execute all Pentium code.  The system will be slower
>than comparable Pentium processors but it should work exactly the
>same.  (Notice that I say `should', I've never done this, there could
>be chipset issues, I don't know of anyone who has done this but it
>should work.)

Does the ia32 emulation go that far to also emulate 16bit operation,
iow, could one boot DOS?

regards,
chris



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Well, it didn't work when I put in a DOS boot floopy and hit the power
button but there could be some EFI magic need to get that to work on
a BigSur, I don't know.

On Wed, Mar 26, 2003 at 06:20:10PM +0100, Christian Groessler wrote:
>
>...
> 
> Does the ia32 emulation go that far to also emulate 16bit operation,
> iow, could one boot DOS?
> 
> regards,
> chris

-- 
Don Dugger
"Censeo Toto nos in Kansa esse decisse." - D. Gale
n0ano@n0ano.com
Ph: 303/447-2201


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> Hi,
>
Hi again:

> m.delahaye@esiee.fr (Matthieu Delahaye) wrote:
>
> As far as I know, the PA-Risc instruction mapping is done with lots of
> software help. The concept is a bit like JIT-Compilers in Java. (It is
> easier to do this when having a RISC code with equal
> instruction length
> compared to ugly X86 code.) As long as my knowledge is correct, you
> therefore cannot run any PA-RISC OS directly on the Hardware, but you
> can run PA-RISC Software in any OS that supports the instruction
> mapping, maybe one can even run a PA-RISC OS inside a virtual PA-RISC
> Machine on Itaniums. (However I don't know any such VM.)
>

Which VM are ported to Linux IA64? Bochs? Virtuozzo? VMWare? Plex86?

Recent Microsoft adquisition
(http://www.connectix.com/fr/about/acquisition_faq.html) is focus in this
sense I think.

Regards,

-Adriano

> Markus
>
> _______________________________________________
> Linux-IA64 mailing list
> Linux-IA64@linuxia64.org
> http://lists.linuxia64.org/lists/listinfo/linux-ia64



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>
>> I had to kill a 'tst-cancel-stat' because it was eating 99% of cpu usage.
>> As it was evidently looping, strace -p 31611 shows me hundred of thousand
>> messages: kill(31610, SIGRT_1)    =-1 (no such process)
>
>Yes, I've noticed this, and I'm not sure why it's doing that. It's the
>only test that fails this way. The rest just SIGSEGV, which again means
>I need to keep debugging the syscall/errno code.
>
>I'll post an update after running some tests on my current patches.
>Thanks for trying that out Joel. What hardware are you testing this on?
>
Sorry I forgot to mentionned; I take the opportunity of a n4k with 2g of
mem to make compile quickest (no swaping at all with so big mem amount) and
so running a 2.4.20-pa32 64bits (up) with an unstable debian.

Joel

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Subject: Re: [parisc-linux] Re: [Linux-ia64] Linux, Itanium and PA/RISC
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Hello,

"Adriano Galano" <adriano@satec.es> schrieb:

> > [...] maybe one can even run a PA-RISC OS inside a virtual
> > PA-RISC Machine on Itaniums. (However I don't know any such VM.)
> Which VM are ported to Linux IA64? Bochs? Virtuozzo? VMWare? Plex86?
> Recent Microsoft adquisition
> (http://www.connectix.com/fr/about/acquisition_faq.html) is focus in
> this sense I think.

As far as I know, all those VMs emulate IA32 and not PA-RISC. So I don't
know how this could help in running a PA-RISC OS on an Itanium.

However, Bochs should be easy to port to another platform due to it's
pure interpreter nature. I don't know about Virtuozzo, but VMWare and
Plex86 run at least user-level app code natively, so they have to be
adopted to the IA64 Kern and the mode switching, I think. E. G. VMware
and Plex86 both make use of Kernel Modules / Patches which must be
adopted.

Gru=DF,
Markus

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Schabi's Flohmarkt: http://schabi.de/flohmarkt/

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[DoLi in unibwm.studium]

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From - Thu Nov 08 21:27:18 2018
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Subject: Re: [parisc-linux] Re: [Linux-ia64] Linux, Itanium and PA/RISC
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Hi
> 
> However, Bochs should be easy to port to another platform due to it's
> pure interpreter nature. 
>From a Woody/IA-64 box:

~$ apt-cache search bochs
bochs - IA-32 (x86) PC emulator
[snip]

Didn't try it. But a good first step.

Matthieu





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Subject: [parisc-linux] [PATCH] glibc fix for /lib/ld.so.1
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Hello parisc-linux hackers,

Finally tracked down the glibc problem (with help from tausq and others
:)).  I have attached the changelog entry, and the dpatch.  I am
assuming you will push it upstream Carlos?


When working on this problem it caused a gcc ICE.  The gcc ICE has been
reported at:


http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10215

This is why the ENTRY_POINT macro is uglier than really necessary.

Once this patch is in glibc, then we can remove the RGH_FIX hack
from the 2.4 kernels as well.

oh.  This patch fixes this assert in glibc:

rbrad@vega:~$ /lib/ld.so.1 --verify /bin/sh
Inconsistency detected by ld.so: rtld.c: 879: dl_main: Assertion
`_rtld_local._dl_rtld_map.l_libname' failed!

Thanks!

- Ryan


-- 
Ryan Bradetich <rbradetich@uswest.net>



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Subject: [parisc-linux] FWD: [PATCH] glibc fix for /lib/ld.so.1 (with attachments this
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Hello parisc-linux hackers,

Finally tracked down the glibc problem (with help from tausq and others
:)).  I have attached the changelog entry, and the dpatch.  I am
assuming you will push it upstream Carlos?


When working on this problem it caused a gcc ICE.  The gcc ICE has been
reported at:


http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10215

This is why the ENTRY_POINT macro is uglier than really necessary.

Once this patch is in glibc, then we can remove the RGH_FIX hack
from the 2.4 kernels as well.

oh.  This patch fixes this assert in glibc:

rbrad@vega:~$ /lib/ld.so.1 --verify /bin/sh
Inconsistency detected by ld.so: rtld.c: 879: dl_main: Assertion
`_rtld_local._dl_rtld_map.l_libname' failed!

Thanks!

- Ryan
-- 
Ryan Bradetich <rbradetich@uswest.net>

--=-Lp0P6uaGCXWpVRqCJe3c
Content-Disposition: attachment; filename=changelog.entry
Content-Type: text/plain; name=changelog.entry; charset=ISO-8859-1
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2003-03-26  Ryan Bradetich  <rbrad@parisc-linux.org>

	* sysdeps/hppa/elf/entry.h: New file.

--=-Lp0P6uaGCXWpVRqCJe3c
Content-Disposition: attachment; filename=hppa-entry.dpatch
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#! /bin/sh -e

# All lines beginning with `# DP:' are a description of the patch.
# DP: Description: <your description>
# DP: Author:
# DP: Upstream status: [In CVS | Debian-Specific | Pending | Not submitted ]
# DP: Status Details:
# DP: Date:

if [ $# -ne 2 ]; then
    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
    exit 1
fi
case "$1" in
    -patch) patch -d "$2" -f --no-backup-if-mismatch -p1 < $0;;
    -unpatch) patch -d "$2" -f --no-backup-if-mismatch -R -p1 < $0;;
    *)
	echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
	exit 1
esac
exit 0

# append the patch here and adjust the -p? flag in the patch calls.
--- /dev/null	2003-01-25 02:37:00.000000000 -0700
+++ glibc-2.3.1/sysdeps/hppa/elf/entry.h	2003-03-27 03:55:34.000000000 -0700
@@ -0,0 +1,10 @@
+#ifndef __ASSEMBLY__
+extern void _start (void);
+#endif
+
+/* The function's entry point is stored in the first word of the
+   function descriptor (plabel) of _start().  */
+#define ENTRY_POINT ({long int *tmp = (long int *)((long)_start & ~2); tmp[0];})
+
+/* We have to provide a special declaration.  */
+#define ENTRY_POINT_DECL(class) class void _start (void);

--=-Lp0P6uaGCXWpVRqCJe3c--



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Ryan,

> Finally tracked down the glibc problem (with help from tausq and others
> :)).  I have attached the changelog entry, and the dpatch.  I am
> assuming you will push it upstream Carlos?

Looks good. It looks like the only real way to solve this since ia64 and
powerpc64 have similar entry.h macro's.
 
> This is why the ENTRY_POINT macro is uglier than really necessary.
 
Not any uglier than the ia64 and powerpc64 macro's that do similar
things ;)

Thank you very much for working on this! :)

c.



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From: rbradetich@uswest.net
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [3.2 regression] [HPPA] Internal compiler error in insn_default_length, at insn-attrtab.c:1203
Date: 27 Mar 2003 06:10:04 -0000
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>Category:       c
>Synopsis:       [3.2 regression] [HPPA] Internal compiler error in insn_default_length, at insn-attrtab.c:1203
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Originator:     rbradetich@uswest.net
>Release:        unknown-1.0
>Environment:
System: Linux vega 2.5.65-pa3 #37 Sun Mar 23 17:41:14 MST 2003 parisc unknown unknown GNU/Linux
Architecture: parisc

host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,pascal,objc,ada --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.2 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-clocale=gnu --enable-objc-gc hppa-linux
>Description:
u_free.c: In function `free_picture_entry':
u_free.c:16: unrecognizable insn:
(insn 43 42 46 (clobber (reg/i:SI 28 %r28)) -1 (insn_list:REG_DEP_OUTPUT 40 (nil))
    (nil))
u_free.c:16: Internal compiler error in insn_default_length, at insn-attrtab.c:1203
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
>How-To-Repeat:
gcc -O2 -g u_free.i
>Fix:
unknown.
>Unformatted:
----gnatsweb-attachment----
Content-Type: application/octet-stream; name="u_free.i"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="u_free.i"

c3RydWN0IF9waWNzIHsgaW50IHJlZmNvdW50OyB9Owp2b2lkIHVzZShpbnQgeCk7CmludCBmcmVl
X3BpY3R1cmVfZW50cnkoc3RydWN0IF9waWNzICpwaWN0dXJlKSB7CglpZiAocGljdHVyZS0+cmVm
Y291bnQgPT0gMCkgewoJCXVzZShwaWN0dXJlLT5yZWZjb3VudCk7CgkJcmV0dXJuOwoJfQp9Cg==


From - Thu Nov 08 21:27:18 2018
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From: rbradetich@uswest.net
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] c/10237: [3.2 regression] [HPPA] Internal compiler error in insn_default_length, at insn-attrtab.c:1203
Date: 27 Mar 2003 06:10:04 -0000
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>Number:         10237
>Category:       c
>Synopsis:       [3.2 regression] [HPPA] Internal compiler error in insn_default_length, at insn-attrtab.c:1203
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Thu Mar 27 06:16:01 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     rbradetich@uswest.net
>Release:        unknown-1.0
>Organization:
>Environment:
System: Linux vega 2.5.65-pa3 #37 Sun Mar 23 17:41:14 MST 2003 parisc unknown unknown GNU/Linux
Architecture: parisc

host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,pascal,objc,ada --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.2 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-clocale=gnu --enable-objc-gc hppa-linux
>Description:
u_free.c: In function `free_picture_entry':
u_free.c:16: unrecognizable insn:
(insn 43 42 46 (clobber (reg/i:SI 28 %r28)) -1 (insn_list:REG_DEP_OUTPUT 40 (nil))
    (nil))
u_free.c:16: Internal compiler error in insn_default_length, at insn-attrtab.c:1203
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
>How-To-Repeat:
gcc -O2 -g u_free.i
>Fix:
unknown.
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: application/octet-stream; name="u_free.i"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="u_free.i"

c3RydWN0IF9waWNzIHsgaW50IHJlZmNvdW50OyB9Owp2b2lkIHVzZShpbnQgeCk7CmludCBmcmVl
X3BpY3R1cmVfZW50cnkoc3RydWN0IF9waWNzICpwaWN0dXJlKSB7CglpZiAocGljdHVyZS0+cmVm
Y291bnQgPT0gMCkgewoJCXVzZShwaWN0dXJlLT5yZWZjb3VudCk7CgkJcmV0dXJuOwoJfQp9Cg==


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From: alchemist@cdc712-9.cdc.polimi.it
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] bug in fork()
Date: Thu, 27 Mar 2003 14:14:24 +0100
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 Dear sirs,
 
 I keep getting strange crashes in X11R6. Using strace revealed a bug in
 fork(). (machine hangs). Any advice about it ?. I am using 2.4.20-pa32 on a
debian 3.0/testing


From - Thu Nov 08 21:27:18 2018
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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] bug in fork()
Date: Thu, 27 Mar 2003 15:07:15 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:18104

Try item 6).

-----
This is a template message.

1) Read the PA-RISC/Linux Boot HOWTO
http://pateam.esiee.fr/doc.html

2) Read the FAQ
http://www.fr.parisc-linux.org/faq/

3) Read the parisc-linux mailing-list archive
http://www.fr.parisc-linux.org/mailing-lists/

4) Check the Hardware Database
http://hwdb.parisc-linux.org/

5) Check the supported machines list
http://pateam.esiee.fr/list.html

6) Read the "HOWTO Report a Kernel Bug"
http://www.fr.parisc-linux.org/faq/kernelbug-howto.html

7) Read the "HOWTO Build a PA-RISC/Linux Kernel"
http://www.fr.parisc-linux.org/kernel/

----
That template may grow as some questions will reappear :P


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

--=20
"Every rational person has two homelands, his own and France" - Thomas
Jefferson

Le jeudi, 27 mar 2003, =E0 14:14 Europe/Paris,=20
alchemist@cdc712-9.cdc.polimi.it a =E9crit :

>
>  Dear sirs,
>
>  I keep getting strange crashes in X11R6. Using strace revealed a bug=20=

> in
>  fork(). (machine hangs). Any advice about it ?. I am using=20
> 2.4.20-pa32 on a
> debian 3.0/testing
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




From - Thu Nov 08 21:27:18 2018
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From: Randolph Chung <tausq@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [3.3 regression] [HPPA] internal compiler error: in final_scan_insn, at final.c:2099
Date: 27 Mar 2003 05:33:19 -0000
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>Category:       c++
>Synopsis:       [3.3 regression] [HPPA] internal compiler error: in final_scan_insn, at final.c:2099
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Originator:     Randolph Chung <tausq@debian.org>
>Release:        gcc-3.3
>Environment:
System: Linux gsyprf11.external.hp.com 2.4.20-pa18-UP #1 Sat Jan 4 22:06:52 PST 2003 parisc64 unknown unknown GNU/Linux
Architecture: parisc64

        <machine, os, target, libraries (multiple lines)>
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v
--enable-languages=c,c++,f77,objc,ada,treelang --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc
hppa-linux
>Description:
3.2.3 doesn't ICE, nor does 3.3 when compiled with -O1 or without -g. Unfortunately I didn't have much luck trying to trim this down, so it's a fairly large test case :( 

sh-2.05b# g++ -v -O2 -g bug.ii
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.3 20030309 (Debian prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.3/cc1plus -fpreprocessed bug.ii -quiet -dumpbase bug.ii -auxbase bug -g -O2 -version -o /tmp/cc1Jcd31.s
GNU C++ version 3.3 20030309 (Debian prerelease) (hppa-linux)
        compiled by GNU C version 3.3 20030309 (Debian prerelease).
GGC heuristics: --param ggc-min-expand=98 --param ggc-min-heapsize=127480
bug.ii:21281: warning: `std::basic_filebuf<_CharT, _Traits>::int_type' is
   implicitly a typename
bug.ii:21281: warning: implicit typename is deprecated, please see the
   documentation for details
bug.ii:21285: warning: `std::basic_filebuf<_CharT, _Traits>::int_type' is
   implicitly a typename
bug.ii:21285: warning: implicit typename is deprecated, please see the
   documentation for details
bug.ii: In member function `void PLib::NurbsCurve<T, N>::globalInterpD(const
   PLib::Vector<PLib::Point_nD<T, D> >&, const PLib::Vector<PLib::Point_nD<T,
   D> >&, int, int, T) [with T = float, int N = 2]':
bug.ii:27797:   instantiated from here
bug.ii:25709: internal compiler error: in final_scan_insn, at final.c:2099
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
>How-To-Repeat:

>Fix:

>Unformatted:
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From: Randolph Chung <tausq@debian.org>
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Subject: [parisc-linux] c++/10235: [3.3 regression] [HPPA] internal compiler error: in final_scan_insn, at final.c:2099
Date: 27 Mar 2003 05:33:19 -0000
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Xref: news.gmane.org gmane.linux.ports.parisc:18106

>Number:         10235
>Category:       c++
>Synopsis:       [3.3 regression] [HPPA] internal compiler error: in final_scan_insn, at final.c:2099
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Thu Mar 27 05:36:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Randolph Chung <tausq@debian.org>
>Release:        gcc-3.3
>Organization:
>Environment:
System: Linux gsyprf11.external.hp.com 2.4.20-pa18-UP #1 Sat Jan 4 22:06:52 PST 2003 parisc64 unknown unknown GNU/Linux
Architecture: parisc64

        <machine, os, target, libraries (multiple lines)>
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v
--enable-languages=c,c++,f77,objc,ada,treelang --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc
hppa-linux
>Description:
3.2.3 doesn't ICE, nor does 3.3 when compiled with -O1 or without -g. Unfortunately I didn't have much luck trying to trim this down, so it's a fairly large test case :( 

sh-2.05b# g++ -v -O2 -g bug.ii
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.3 20030309 (Debian prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.3/cc1plus -fpreprocessed bug.ii -quiet -dumpbase bug.ii -auxbase bug -g -O2 -version -o /tmp/cc1Jcd31.s
GNU C++ version 3.3 20030309 (Debian prerelease) (hppa-linux)
        compiled by GNU C version 3.3 20030309 (Debian prerelease).
GGC heuristics: --param ggc-min-expand=98 --param ggc-min-heapsize=127480
bug.ii:21281: warning: `std::basic_filebuf<_CharT, _Traits>::int_type' is
   implicitly a typename
bug.ii:21281: warning: implicit typename is deprecated, please see the
   documentation for details
bug.ii:21285: warning: `std::basic_filebuf<_CharT, _Traits>::int_type' is
   implicitly a typename
bug.ii:21285: warning: implicit typename is deprecated, please see the
   documentation for details
bug.ii: In member function `void PLib::NurbsCurve<T, N>::globalInterpD(const
   PLib::Vector<PLib::Point_nD<T, D> >&, const PLib::Vector<PLib::Point_nD<T,
   D> >&, int, int, T) [with T = float, int N = 2]':
bug.ii:27797:   instantiated from here
bug.ii:25709: internal compiler error: in final_scan_insn, at final.c:2099
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.5 jejb
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On Thu, 2003-03-27 at 23:47, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.5
> Changes by:	jejb	03/03/27 22:47:02
> 
> Modified files:
> 	include/asm-parisc: pgtable.h 
> 
> Log message:
> Add support for file-offsets-in-pte's
> 
> See http://mail.nl.linux.org/linux-mm/2003-03/msg00174.html

===== include/asm-parisc/pgtable.h 1.11 vs edited =====
--- 1.11/include/asm-parisc/pgtable.h	Thu Mar  6 10:19:09 2003
+++ edited/include/asm-parisc/pgtable.h	Thu Mar 27 21:42:26 2003
@@ -122,6 +122,7 @@
 #define _PAGE_GATEWAY_BIT  28   /* (0x008) privilege promotion allowed */
 #define _PAGE_DMB_BIT      27   /* (0x010) Data Memory Break enable (B bit) */
 #define _PAGE_DIRTY_BIT    26   /* (0x020) Page Dirty (D bit) */
+#define _PAGE_FILE_BIT	_PAGE_DIRTY_BIT	/* overload this bit */
 #define _PAGE_REFTRAP_BIT  25   /* (0x040) Page Ref. Trap enable (T bit) */
 #define _PAGE_NO_CACHE_BIT 24   /* (0x080) Uncached Page (U bit) */
 #define _PAGE_ACCESSED_BIT 23   /* (0x100) Software: Page Accessed */
@@ -135,6 +136,17 @@
 
 #define xlate_pabit(x) (31 - x)
 
+/* this defines the shift to the usable bits in the PTE it is set so
+ * that the valid bits _PAGE_PRESENT_BIT and _PAGE_USER_BIT are set
+ * to zero */
+#define PTE_SHIFT	   	xlate_pabit(_PAGE_USER_BIT)
+
+/* this is how many bits may be used by the file functions */
+#define PTE_FILE_MAX_BITS	(BITS_PER_LONG - PTE_SHIFT)
+
+#define pte_to_pgoff(pte) (pte_val(pte) >> PTE_SHIFT)
+#define pgoff_to_pte(off) ((pte_t) { ((off) << PTE_SHIFT) | _PAGE_FILE })
+
 #define _PAGE_READ     (1 << xlate_pabit(_PAGE_READ_BIT))
 #define _PAGE_WRITE    (1 << xlate_pabit(_PAGE_WRITE_BIT))
 #define _PAGE_RW       (_PAGE_READ | _PAGE_WRITE)
@@ -148,6 +160,7 @@
 #define _PAGE_PRESENT  (1 << xlate_pabit(_PAGE_PRESENT_BIT))
 #define _PAGE_FLUSH    (1 << xlate_pabit(_PAGE_FLUSH_BIT))
 #define _PAGE_USER     (1 << xlate_pabit(_PAGE_USER_BIT))
+#define _PAGE_FILE     (1 << xlate_pabit(_PAGE_FILE_BIT))
 
 #define _PAGE_TABLE	(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE |  _PAGE_DIRTY | _PAGE_ACCESSED)
 #define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
@@ -256,6 +269,7 @@
 extern inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
 extern inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
 extern inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_WRITE; }
+extern inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
 
 extern inline pte_t pte_rdprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_READ; return pte; }
 extern inline pte_t pte_mkclean(pte_t pte)	{ pte_val(pte) &= ~_PAGE_DIRTY; return pte; }



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rbradetich@uswest.net writes:
> u_free.c: In function `free_picture_entry':
> u_free.c:16: unrecognizable insn:
> (insn 43 42 46 (clobber (reg/i:SI 28 %r28)) -1 (insn_list:REG_DEP_OUTPUT 40 (nil))
>     (nil))
> u_free.c:16: Internal compiler error in insn_default_length, at insn-attrtab.c:1203
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
> >How-To-Repeat:
> gcc -O2 -g u_free.i

Fixed in 3.3 CVS 20030318


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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Content-Type: text/plain; charset=us-ascii

ftp://ftp.<country>.kernel.org/pub/linux/utils/kernel/modutils/v2.4

modutils-2.4.25.tar.gz          Source tarball, includes RPM spec file
modutils-2.4.25-1.src.rpm       As above, in SRPM format
modutils-2.4.25-1.i386.rpm      Compiled with gcc 2.96 20000731,
                                glibc 2.2.2.
modutils-2.4.25-1.ia64.rpm	Compiled with gcc 2.96-ia64-20000731,
				glibc-2.2.3.
patch-modutils-2.4.25.gz        Patch from modutils 2.4.24 to 2.4.25.

Changelog extract

        * Add hppa and hppa64 to the list of architectures that have function
          descriptors.
        * Add combined s390/s390x support.  IBM.

This version of modutils is almost identical to 2.4.23.  The changes
affect architectures that have function descriptors, i.e. ia64, ppc64,
hppa, hppa64.  It also adds support for combined s390/s390x utilities.

For historical reasons, insmod and depmod treat modules with neither
EXPORT_SYMBOL() nor EXPORT_NO_SYMBOLS() as exporting everything.  This
provides backwards compatibility with 2.0 kernels and some 2.2 modules.
No new code should be relying on this behaviour and the feature has
been removed in 2.5 kernels.  Unfortunately some developers are still
relying on this default behaviour, even for new code.

When an architecture has function descriptors and uses EXPORT_SYMBOL()
on a function, gcc generates a function descriptor and ksymtab contains
the address of that descriptor.  Without an explicit EXPORT_SYMBOL(),
gcc does not generate a function descriptor and the exported symbol
points to the start of the function body.  Any attempt to call to that
function tries to use the start of the function code as a descriptor
and breaks spectacularly.

To prevent this kernel breakage, I am making an incompatible change to
modutils.  It only affects ia64, ppc64, hppa and hppa64 users, and only
if they are relying on the deprecated feature of all symbols being
exported.

Users on these architectures must ensure that their modules still
resolve and add EXPORT_SYMBOL() where necessary before doing a
permanent upgrade to modutils 2.4.25.  The simplest way to check is to
build (but not install) modutils-2.4.25 then
  ./depmod/depmod -nae > /dev/null
Any unresolved references that did not occur with modutils 2.4.23 need
an explicit EXPORT_SYMBOL().  If this is too much bother, stay on
modutils 2.4.23 and risk the kernel breakage.

Other architectures can safely upgrade to 2.4.25 with no change, or
they can stay on 2.4.23.

If anybody fancies a janatorial task, configure modutils 2.4.25 with
CFLAGS="-O2 -Wall -DHAS_FUNCTION_DESCRIPTORS" ./configure, build it
then run ./depmod/depmod -nae > /dev/null.  You can do that on any
architecture to find kernel modules that still rely on exporting all
symbols.

No, I am not going to fudge modutils 2.4 to allow the continued default
export of data symbols but not text symbols on architectures with
function descriptors.  It is too much extra work just to allow the
continued use of a deprecated feature that has already been removed in
2.5 kernels.

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Subject: [parisc-linux] RDI Tadpole Precisionbook and Linux/PA-RISC
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Hi,

I just wonder whether somebody has experience in running Linux on
a Precisionbook (which is the equivalent to a B-Class machine according
to Tadpole). According to OpenPA.net it contains the following chips:

LASI ASIC, which features:
- NCR 53c710 8-bit single-ended SCSI-2
- Intel 82596CA 10Mb Ethernet controller
- WD 16C522 compatible parallel
- Harmony CD/DAT quality 16-bit audio
- NS 16550A compatible serial
Dino PCI bus-adaptor
Visualize EG (Graffiti) graphics with 2MB memory
1MB flash memory
Intel 82503 Ethernet transceiver, media auto-selection
CS4215 or AD1849 programmable CODECs
WD37C65C Floppy controller


As far as I can see the only thing that isn't supported on
Linux/PA-RISC right now is the floppy controller. The (IDE-)hard disks
shouldn't be a problem since they are attached to the NCR 53c710 via a
SCSI-IDE adapter.

Does anybody know whether it could/should/may/will/does run Linux?

Thanks in advance,

Max



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On Sun, Mar 30, 2003 at 09:02:31AM +0100, M. Grabert wrote:
> I just wonder whether somebody has experience in running Linux on
> a Precisionbook (which is the equivalent to a B-Class machine according

I tried to get hold of one from them.  They never called me back ;-(

> to Tadpole). According to OpenPA.net it contains the following chips:
> 
> LASI ASIC, which features:

Same as everything from the 712 to the J2240 ;-)

> Dino PCI bus-adaptor

Also in everything from the B132 to the J2240

> Visualize EG (Graffiti) graphics with 2MB memory

Works in other machines.

> 1MB flash memory

Don't know how this is hooked up.  Might work, give it a try.

> Intel 82503 Ethernet transceiver, media auto-selection

Presumably we dont actually need a driver for this.

> CS4215 or AD1849 programmable CODECs

Hooks up to harmony, no worries.

> WD37C65C Floppy controller

As you say, no floppy support yet.

> As far as I can see the only thing that isn't supported on
> Linux/PA-RISC right now is the floppy controller. The (IDE-)hard disks
> shouldn't be a problem since they are attached to the NCR 53c710 via a
> SCSI-IDE adapter.

Doesn't it also have a PCMCIA adapter?  No-one's tried making those work.

> Does anybody know whether it could/should/may/will/does run Linux?

Obviously it _should_.  But since no-one's tried ...

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> I tried to get hold of one from them.  They never called me back ;-(

I got a hold of them, and they wouldn't stop bothering me. The only
thing holding me back was the price. It's like $6K US for one of these
babies... refurbished at that :} That comes out to a few million
Canadian clams.
 
> > Does anybody know whether it could/should/may/will/does run Linux?
> 
> Obviously it _should_.  But since no-one's tried ...

... cause they cost an arm and a leg.

I'd love to hear that you boys in IE have cheaper prices on these
laptops :)

c.

--- Refubished Sales snippet ---
H18-14-XX-256/512- $6,200-6,500.00 USD
180 MHz HP Processor, 14" LCD, 6 GB HDD (one or two drives for total of 12 GB HDD).
These are what will ship with PBooks:
1. User Manual
2. Software Manual (HP-UX 11.0).
3. Carry Bag
4. 13W3 Video Adapter
5. Power Supply w/Cord
Usual 10 day lead time.
90 day warranty.                          
--------------------------------


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Carlos O'Donell wrote:
> 
> > I tried to get hold of one from them.  They never called me back ;-(
> 
> I got a hold of them, and they wouldn't stop bothering me. The only
> thing holding me back was the price. It's like $6K US for one of these
> babies... refurbished at that :} That comes out to a few million
> Canadian clams.

Well, if you want to have one, have a look at 

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3408697535&category=177

Berthold


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> Well, if you want to have one, have a look at 
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3408697535&category=177

Holy smokes! If only I wasn't saving for graduate studies :(

c.


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Subject: Re: [parisc-linux] RDI Tadpole Precisionbook and Linux/PA-RISC
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On Sun, 30 Mar 2003, Carlos O'Donell wrote:

> Date: Sun, 30 Mar 2003 14:13:27 -0500
> From: Carlos O'Donell <carlos@baldric.uwo.ca>
> To: Matthew Wilcox <willy@debian.org>
> Cc: M. Grabert <xam@cs.ucc.ie>, parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] RDI Tadpole Precisionbook and Linux/PA-RISC
>
> > I tried to get hold of one from them.  They never called me back ;-(
>
> I got a hold of them, and they wouldn't stop bothering me. The only
> thing holding me back was the price. It's like $6K US for one of these
> babies... refurbished at that :} That comes out to a few million
> Canadian clams.
>
> > > Does anybody know whether it could/should/may/will/does run Linux?
> >
> > Obviously it _should_.  But since no-one's tried ...
>
> ... cause they cost an arm and a leg.

Well, actually just you little toe ;)

http://search.ebay.com/search/search.dll?cgiurl=3Dhttp%3A%2F%2Fcgi.ebay.com=
%2Fws%2F&krd=3D1&from=3DR8&MfcISAPICommand=3DGetResult&ht=3D1&SortProperty=
=3DMetaEndSort&query=3Dprecisionbook

more specifically:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3D3408697535&category=3D=
177

There are 8 (mhh, well, now just 7 ;-) Precisionbooks left!

> I'd love to hear that you boys in IE have cheaper prices on these
> laptops :)

No, we boys in IE just know how to use the 'search' function on Ebay  ;)))


Greetings from =C9ire,

Max



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On Sun, 30 Mar 2003, b.gunreben wrote:

> Carlos O'Donell wrote:
> >
> > > I tried to get hold of one from them.  They never called me back ;-(
> >
> > I got a hold of them, and they wouldn't stop bothering me. The only
> > thing holding me back was the price. It's like $6K US for one of these
> > babies... refurbished at that :} That comes out to a few million
> > Canadian clams.
>
> Well, if you want to have one, have a look at
>
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3408697535&category=177

Obviously the guys in DE are not that dumb either ;)


lol, Max



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* M. Grabert (xam@cs.ucc.ie) wrote:
> 
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3408697535&category=177

Sheesh how many milliseconds do the batteries last on these things?

Dave
 ---------------- Have a happy GNU millennium! ----------------------   
/ Dr. David Alan Gilbert    | Running GNU/Linux on Alpha,68K| Happy  \ 
\ gro.gilbert @ treblig.org | MIPS,x86,ARM,SPARC,PPC & HPPA | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/


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On Sun, 30 Mar 2003, Dr. David Alan Gilbert wrote:

> * M. Grabert (xam@cs.ucc.ie) wrote:
> >
> > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3408697535&category=177
>
> Sheesh how many milliseconds do the batteries last on these things?

1-2 hours ;)







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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] "Unresolved inheritance operation" with gv, xdvi and xkeycaps
Date: 30 Mar 2003 14:05:28 -0700
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Hello,

I worked on tracking down the cause of this error message over the last
couple of days, and found it was the function descriptor bug in gcc that
jda already fixed in gcc-3.3.  So if you are experience this
error message, the libXt.so needs to be recompiled with a newer compiler
and the error should go away. (Note: I only had to recompile the
libXt.so, recompiling xkeycaps was not required).

Thanks,

- Ryan

P.S. thanks to tausq again for all the help in debugging these problems.


-- 
Ryan Bradetich <rbradetich@uswest.net>



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On Sun, Mar 30, 2003 at 04:20:36PM +0100, Matthew Wilcox wrote:
> > 1MB flash memory
> 
> Don't know how this is hooked up.  Might work, give it a try.

That's NVRAM. I don't know if we've documented the layout.
My gut feeing is only PDC should be touching NVRAM right now.

grant


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From: Stan Sieler <sieler@allegro.com>
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Subject: Re: [parisc-linux] RDI Tadpole Precisionbook and Linux/PA-RISC
Date: Sun, 30 Mar 2003 14:50:06 -0800 (PST)
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Re:

(Note: if anyone has a Tadpole/RDI PrecisionBook manual/documentation-set,
I'd be real interested in asking them a couple of questions!)


> I got a hold of them, and they wouldn't stop bothering me. The only
> thing holding me back was the price. It's like $6K US for one of these
> babies... refurbished at that :} That comes out to a few million
> Canadian clams.

They've been popping up regularly on eBay for the last 6 weeks.     
My guess is that some company surplused a *lot* of them.  I picked up
a couple, and have seen a couple more, in the last month.  Every one
has a non-tadpole/RDI asset tag of the form:

   AudFMA-18
   SVID0127xxxxxx   (where the xxxxxx varies from laptop to laptop)

...this includes some from www.surplusvillage.com as well as some
from eBay (via two different sellers).
  

Price paid ranged from $70 to $185.  Of the four seen, one came with a
carrying case.  None had the floppy drive or the docking station / expansion
cable/whatever.  Most had two internal hard drives, but one had the drives
removed and shipped just with the drive "cases" (and the IDE-SCSI converter
card they need).  All have had 256 MB of RAM.

Note: if buying one, try to get the A/C adapter...it's funky.
One or two have had hardware flaws that caused the laptop screen to go
solid white after 5 to 30 minutes of use.

The machines I've seen are PrecisionBook models H16, and have the following
ports/slots:

right side: (from front to back)
   headphones
   mic in
   line in
   speaker out
      (the above are above the battery)
   battery (4500 mAh, Li ion)

   openable compartment with:
      PCMCIA slots (two slots)
      Floppy disk drive connector 

   openable compartment with:
      SCSI connector (50 pin high density; single-ended)

back:  (left to right, viewed from back)
   (power connector, circular 5 pin, screw on)
   docking station (unusual (to me) connector)
   monitor (15-pin standard)
   keyboard (PS-2)
   mouse (PS-2)
   LAN (10 Base T)
   combo parallel/serial/AUI connector (unusual, small connector)
  
left side: 
   two removable disk drives (each in a plastic caddy; the drives
   are IBM 4 GB IDE drives, connected to an IDE -> SCSI converter
   that's also inside the caddy)

underneath:
   (center)
   compartment with access to add-on memory.  (Apparently, up to
   two add-on cards are possible.) 

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com


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Subject: [parisc-linux] perl/gcc bug if someone wants to look :)
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perl-5.8 fails to build on hppa because of a test failure. The problem
can be seen very easily:

tausq@gsyprf11:~/build/perl-5.8.0$ cat t/t.pl
print log "A";
tausq@gsyprf11:~/build/perl-5.8.0$ ./perl t/t.pl
Can't take log of 2.75773e-308 at t/t.pl line 1.

that should have said:
tausq@gsyprf11:~/build/perl-5.8.0$ /usr/bin/perl t/t.pl
Can't take log of 0 at t/t.pl line 1.

interestingly, a debug build of perl (using -g and no -O flags) doesn't
have the same problem, so this looks like some kind of compiler
optimization bug. I've tried this with both 3.2.3 and 3.3... same
problems.

would anyone like to try to look at this some more and see if they can
isolate the C code/a small test case that is causing the problem?

thanks
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] glibc/gcc bug -> perl/gcc bug?
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> perl-5.8 fails to build on hppa because of a test failure. The problem
> can be seen very easily:
> 
> tausq@gsyprf11:~/build/perl-5.8.0$ cat t/t.pl
> print log "A";
> tausq@gsyprf11:~/build/perl-5.8.0$ ./perl t/t.pl
> Can't take log of 2.75773e-308 at t/t.pl line 1.
> 
> that should have said:
> tausq@gsyprf11:~/build/perl-5.8.0$ /usr/bin/perl t/t.pl
> Can't take log of 0 at t/t.pl line 1.
> 
> interestingly, a debug build of perl (using -g and no -O flags) doesn't
> have the same problem, so this looks like some kind of compiler
> optimization bug. I've tried this with both 3.2.3 and 3.3... same
> problems.
> 
> would anyone like to try to look at this some more and see if they can
> isolate the C code/a small test case that is causing the problem?

Glibc's math tests are still failing even under gcc-3.3 (not to mention
the threading problems I'm in the middle of fixing).

Though I'm seeing more:

Failure: Real part of: cacos (NaN + inf i) == NaN - inf i: Exception "Invalid operation" set
Failure: Real part of: cacos (NaN - inf i) == NaN + inf i: Exception "Invalid operation" set
Failure: Real part of: cacos (NaN + NaN i) == NaN + NaN i: Exception "Invalid operation" set

Or:
Failure: Test: Imaginary part of: ctanh (NaN - 0 i) == NaN - 0 i
Result:
 is:          nan   nan
 should be:  -0.00000000000000000000e+00  -0x0.00000000000000000000p+0

Even with a new ulps, the tests were still failing.

c.



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Subject: [parisc-linux] [3.0/3.2/3.3/3.4] [HPPA] Floating point args don't get reloaded across function calls at -O2
Date: 31 Mar 2003 05:05:40 -0000
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>Category:       target
>Synopsis:       [3.0/3.2/3.3/3.4] [HPPA] Floating point args don't get reloaded across function calls at -O2
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Class:          wrong-code
>Submitter-Id:   net
>Originator:     Randolph Chung <tausq@debian.org>
>Release:        3.3 20030309 (Debian prerelease) (Debian testing/unstable) [and others]
>Environment:
System: Linux gsyprf11.external.hp.com 2.4.20-pa18-UP #1 Sat Jan 4 22:06:52 PST 2
003 parisc64 unknown unknown GNU/Linux
Architecture: parisc64

        <machine, os, target, libraries (multiple lines)>
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treela
ng --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-inc
lude-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --w
ithout-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-c
locale=gnu --enable-debug --enable-objc-gc hppa-linux
>Description:
When compiling the bug.c code below with -O2, the floating point argument to the fprintf does not get reloaded for the second fprintf() call, so the second call prints junk. At -O1 the arguments (r23/r24) are properly reloaded.
>How-To-Repeat:
Compile with gcc -O2 -o bug bug.c -lm
$ ./bug
nan
1.422968e-309

With -O1
$ ./bug
nan
nan

------8< bug.c 8<--------
#include <stdio.h>
#include <math.h>

void doprint(double dval)
{
        fprintf(stdout, "%e\n", dval);
        fprintf(stdout, "%e\n", dval);
}

int main(int argc, char **argv)
{
        doprint(log(-8)); /* nan */
        return 0;
}
>Fix:

>Unformatted:


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Subject: [parisc-linux] target/10271: [3.0/3.2/3.3/3.4] [HPPA] Floating point args don't get reloaded across function calls at -O2
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>Number:         10271
>Category:       target
>Synopsis:       [3.0/3.2/3.3/3.4] [HPPA] Floating point args don't get reloaded across function calls at -O2
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          wrong-code
>Submitter-Id:   net
>Arrival-Date:   Mon Mar 31 05:06:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Randolph Chung <tausq@debian.org>
>Release:        3.3 20030309 (Debian prerelease) (Debian testing/unstable) [and others]
>Organization:
>Environment:
System: Linux gsyprf11.external.hp.com 2.4.20-pa18-UP #1 Sat Jan 4 22:06:52 PST 2
003 parisc64 unknown unknown GNU/Linux
Architecture: parisc64

        <machine, os, target, libraries (multiple lines)>
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treela
ng --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-inc
lude-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --w
ithout-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-c
locale=gnu --enable-debug --enable-objc-gc hppa-linux
>Description:
When compiling the bug.c code below with -O2, the floating point argument to the fprintf does not get reloaded for the second fprintf() call, so the second call prints junk. At -O1 the arguments (r23/r24) are properly reloaded.
>How-To-Repeat:
Compile with gcc -O2 -o bug bug.c -lm
$ ./bug
nan
1.422968e-309

With -O1
$ ./bug
nan
nan

------8< bug.c 8<--------
#include <stdio.h>
#include <math.h>

void doprint(double dval)
{
        fprintf(stdout, "%e\n", dval);
        fprintf(stdout, "%e\n", dval);
}

int main(int argc, char **argv)
{
        doprint(log(-8)); /* nan */
        return 0;
}
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:


From - Thu Nov 08 21:27:21 2018
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From: Randolph Chung <tausq@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [3.0/3.2/3.3/3.4] Floating point args not correctly loaded for function calls
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Xref: news.gmane.org gmane.linux.ports.parisc:18127

>Category:       target
>Synopsis:       [3.0/3.2/3.3/3.4] Floating point args not correctly loaded for function calls
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Class:          wrong-code
>Submitter-Id:   net
>Originator:     Randolph Chung <tausq@debian.org>
>Release:        3.3 20030309 (Debian prerelease) (Debian testing/unstable) [and others]
>Environment:
System: Linux gsyprf11.external.hp.com 2.4.20-pa18-UP #1 Sat Jan 4 22:06:52 PST 2
003 parisc64 unknown unknown GNU/Linux
Architecture: parisc64

        <machine, os, target, libraries (multiple lines)>
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treela
ng --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-inc
lude-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --w
ithout-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-c
locale=gnu --enable-debug --enable-objc-gc hppa-linux
>Description:
This one looks similar to 10271, but filing separately because the test case is a bit different. Not sure if it's the same bug or not.

At -O2 the floating point argument is not getting loaded into the right registers to pass to fprintf().
>How-To-Repeat:
$ gcc-3.3 -O2 -o bug bug.c -lm
$ ./bug
-1.488583e+284
$ gcc-3.3 -O1 -o bug bug.c -lm
$ ./bug
nan

-------8< bug.c 8<------------
#include <stdio.h>
#include <math.h>

void doprint(double d)
{
        int i = (int)d;
        if ((double)i == d) {
                fprintf(stdout, "%d\n", i);
        } else {
                fprintf(stdout, "%e\n", d);
        }
}

int main(int argc, char **argv)
{
        doprint(log(-8)); /* nan */
        return 0;
}
>Fix:

>Unformatted:


From - Thu Nov 08 21:27:21 2018
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From: Randolph Chung <tausq@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] target/10272: [3.0/3.2/3.3/3.4] Floating point args not correctly loaded for function calls
Date: 31 Mar 2003 05:23:01 -0000
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Xref: news.gmane.org gmane.linux.ports.parisc:18128

>Number:         10272
>Category:       target
>Synopsis:       [3.0/3.2/3.3/3.4] Floating point args not correctly loaded for function calls
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          wrong-code
>Submitter-Id:   net
>Arrival-Date:   Mon Mar 31 05:26:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Randolph Chung <tausq@debian.org>
>Release:        3.3 20030309 (Debian prerelease) (Debian testing/unstable) [and others]
>Organization:
>Environment:
System: Linux gsyprf11.external.hp.com 2.4.20-pa18-UP #1 Sat Jan 4 22:06:52 PST 2
003 parisc64 unknown unknown GNU/Linux
Architecture: parisc64

        <machine, os, target, libraries (multiple lines)>
host: hppa-unknown-linux-gnu
build: hppa-unknown-linux-gnu
target: hppa-unknown-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treela
ng --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-inc
lude-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --w
ithout-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-c
locale=gnu --enable-debug --enable-objc-gc hppa-linux
>Description:
This one looks similar to 10271, but filing separately because the test case is a bit different. Not sure if it's the same bug or not.

At -O2 the floating point argument is not getting loaded into the right registers to pass to fprintf().
>How-To-Repeat:
$ gcc-3.3 -O2 -o bug bug.c -lm
$ ./bug
-1.488583e+284
$ gcc-3.3 -O1 -o bug bug.c -lm
$ ./bug
nan

-------8< bug.c 8<------------
#include <stdio.h>
#include <math.h>

void doprint(double d)
{
        int i = (int)d;
        if ((double)i == d) {
                fprintf(stdout, "%d\n", i);
        } else {
                fprintf(stdout, "%e\n", d);
        }
}

int main(int argc, char **argv)
{
        doprint(log(-8)); /* nan */
        return 0;
}
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:


From - Thu Nov 08 21:27:21 2018
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From: Naresh <knaresh@india.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PDC console problem.
Date: Tue, 01 Apr 2003 12:35:32 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:18129

Hi,

I am trying to boot PA-Linux off a PA-RISC simulator. I am facing a
problem with the PDC console. On my first attempt, I saw the message
asking me to switch the console. So I  turned the PDC console config
option on ( the serial mux option was turned off). I added the parameter
'console=ttyB0' in 'palo.conf'. I created the device file '/dev/ttyB0'
with major/minor = 11/0 on my ramdisk. With this, the kernel boots up on
the simulator all the way upto the sash ( Stand-alone shell) prompt. I
can even see the prompt. But, the problem is that this console doesnt
seem to be accepting input from the keyboard. It is kind of like in a
locked state.

I was going through some of the FAQ and the mailing list archive and
understand that the PDC console is not a full blown console and can only
display output. Is is true that the PDC console cannot accept keyboard
input? Or am I missing something?

I also see that there are 2 versions of the PDC console driver :
'arch/parisc/kernel/pdc_cons.c' and 'drivers/char/pdc_console.c'. Both
use the device ttyB. From what I understand, the former is used before
any of the serial drivers are initialized during boot, and has only
write capability. The latter is the full-blown console driver (though I
am not sure if it has write capability). Is my understanding correct?

I am using the source tarball 'palo-latest.tar.gz' from the parisc-linux
cvs respository and cross-compiling this on an x86 box.

Regards,
Naresh.

PS: My "init" process is 'sash' and I also have a '/dev/console' device
( major=5 minor=1) on my ramdisk. The Serial driver config option is on
and I can see it being initialized in the boot path after the PDC
console.



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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] PDC console problem.
Date: 01 Apr 2003 00:17:04 -0700
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> I was going through some of the FAQ and the mailing list archive and
> understand that the PDC console is not a full blown console and can only
> display output. Is is true that the PDC console cannot accept keyboard
> input? Or am I missing something?

Hmm.. The pdc_console has both read and write capabilities.  We used the
PDC console for K/E class systems before the SerialMux driver was
written.  I am not familiar with the PDC simulator, but I would be
willing to test the pdc console again on K-Class.

Which kernel are you using?

Thanks,

- Ryan


-- 
Ryan Bradetich <rbradetich@uswest.net>



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From: Naresh <knaresh@india.hp.com>
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Subject: Re: [parisc-linux] PDC console problem.
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Xref: news.gmane.org gmane.linux.ports.parisc:18131

A small correction to the original mail: the kernel source that was compiled
was the one thats listed as latest ( cvs/linux_latest.tar.gz), which I guess
is 2.4.20-pa22. I have booted this very same kernel off an L-Class machine
with the PDC console option off.

Regards
Naresh.

Ryan Bradetich wrote:

> > I was going through some of the FAQ and the mailing list archive and
> > understand that the PDC console is not a full blown console and can only
> > display output. Is is true that the PDC console cannot accept keyboard
> > input? Or am I missing something?
>
> Hmm.. The pdc_console has both read and write capabilities.  We used the
> PDC console for K/E class systems before the SerialMux driver was
> written.  I am not familiar with the PDC simulator, but I would be
> willing to test the pdc console again on K-Class.
>
> Which kernel are you using?
>
> Thanks,
>
> - Ryan
>
> --
> Ryan Bradetich <rbradetich@uswest.net>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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just a quick note - the above mentioned system, a 745i/50, boots up
fine with ``lifimage-2.4.20-pa32-20030322.gz'' over the network. it
is basically a 725/50, just in a different enclosure with hp-ib
support.

if someone would tell me how to interrupt the debian-installer from
coming up i could provide a dmesg or console log.


[please cc: me on answers since i'm not on the list.]


	- paul


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From: "Isabella T. Wilson" <isabellatwilson_60@amazon.com>
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] 745i (Pace) boots
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On Tue, Apr 01, 2003 at 10:14:03AM +0200, Paul Weissmann wrote:
> just a quick note - the above mentioned system, a 745i/50, boots up
> fine with ``lifimage-2.4.20-pa32-20030322.gz'' over the network. it
> is basically a 725/50, just in a different enclosure with hp-ib
> support.

That's great!  Thanks for the report.

> if someone would tell me how to interrupt the debian-installer from
> coming up i could provide a dmesg or console log.

Easiest way is to boot with `init=/bin/sh'.  You do this by interacting
with IPL/ISL, editing one of the options and appending that string to it.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Matthew Wilcox [willy@debian.org] wrote:
> On Tue, Apr 01, 2003 at 10:14:03AM +0200, Paul Weissmann wrote:
> > if someone would tell me how to interrupt the debian-installer from
> > coming up i could provide a dmesg or console log.
> 
> Easiest way is to boot with `init=/bin/sh'.  You do this by interacting
> with IPL/ISL, editing one of the options and appending that string to it.

attached is the typescript from script(1).

	- paul
--7AUc2qLy4jB3hD7Z
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="745i-debian30.txt"

$Id: 745i-debian30.txt,v 1.1 2003/04/01 09:38:18 paul Exp $

BOOT_ADMIN> boot lan

Trying lan.000000-000000.0.0
Boot path initialized.
Attempting to load IPL.


Hard booted.
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002

Boot image contains:
    0/vmlinux32 3985679 bytes @ 0x8000
    0/vmlinux64 5275609 bytes @ 0x3d5800
    0/ramdisk 2665562 bytes @ 0x8dd800

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'HOME=/ ramdisk_size=8192 root=/dev/ram console=ttyS0 TERM=vt102 palo_kernel=0/linux'
Selected kernel: /linux from partition 0
Selected ramdisk: /ramdisk from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 32-bit kernelELF32 executable
Entry 001000d8 first 00100000 n 6
Segment 0 load 00100000 size 2202024 mediaptr 0x1000
Segment 1 load 0031a000 size 468144 mediaptr 0x21b000
Segment 2 load 00390000 size 257356 mediaptr 0x28e000
Segment 3 load 003d0000 size 8192 mediaptr 0x2cd000
Segment 4 load 003d8000 size 32768 mediaptr 0x2cf000
Segment 5 load 004020e4 size 112320 mediaptr 0x2d70e4
Loading ramdisk 2665562 bytes @ 05d64000...
Branching to kernel entry point 0x001000d8.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.20-32 (root@mkhppa3) (gcc version 3.0.4) #1 Sat Mar 22 14:03:22 CET 2003
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00004010 00000481 00000000 00000000 77ccf387 ffffffff 00000004 0000000a 0000000a
vers  00000013
model 9000/745
Total Memory: 96 Mb
initrd: 15d64000-15feec5a
initrd: reserving 05d64000-05feec5a (mem_max 06000000)
pagetable_init
On node 0 totalpages: 24576
zone(0): 24576 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: HOME=/ ramdisk_size=8192 root=/dev/ram console=ttyS0 TERM=vt102 palo_kernel=0/linux
Console: colour dummy device 160x64
Calibrating delay loop... 49.86 BogoMIPS
Memory: 91264k available
Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Searching for devices...
Found devices:
1. Pace SGC Graphics (10) at 0xf4000000 [0], versions 0x10, 0x0, 0x77
2. Pace Core BA (11) at 0xf082f000 [2], versions 0x10, 0x0, 0x70
3. Pace Core SCSI (10) at 0xf0825000 [2/0/1], versions 0x10, 0x0, 0x71
4. Pace Core LAN (802.3) (10) at 0xf0826000 [2/0/2], versions 0x10, 0x0, 0x72
5. Pace Core HIL (10) at 0xf0821000 [2/0/3], versions 0x10, 0x0, 0x73
6. Pace Core RS-232 (10) at 0xf0823000 [2/0/4], versions 0x10, 0x0, 0x75
7. Pace Core RS-232 (10) at 0xf0822000 [2/0/5], versions 0x10, 0x0, 0x75
8. Pace Core Centronics (10) at 0xf0824000 [2/0/6], versions 0x10, 0x0, 0x74
9. Pace Core HPIB (10) at 0xf0835000 [2/0/7], versions 0x10, 0x0, 0x80
10. Pace Audio (10) at 0xf1000000 [2/0/8], versions 0x10, 0x0, 0x7e
11. Pace Core EISA (11) at 0xfc000000 [4], versions 0x10, 0x0, 0x76
12. Pace (745i, 747i) (0) at 0xfffbe000 [8], versions 0x401, 0x0, 0x4
13. Memory (1) at 0xfffbf000 [9], versions 0x20, 0x0, 0x9
CPU(s): 1 x PA7100 (PCX-T) at 50.000000 MHz
Asp version 1 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered
Mongoose EISA Adapter found at 0xfc000000
EISA EEPROM at 0xf0810400
Enumerating EISA bus
EISA slot 1: HWP0C70 EISA DMA 0 IRQ 3 
EISA slot 2 a configured board was not detected ( expected ___FFFF)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch support not available.
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
STI GSC/PCI graphics driver version 0.9
STI byte mode ROM at f4000000, hpa at f4000000
STI id 27f12392-40a00499, conforms to spec rev. 8.02
STI device: HPA1991AC19
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 27f12392, mmio: 0xf4100000
pty: 256 Unix98 ptys configured
PDC Software Console version 0.3 (2001-11-17), christoph.plattner@gmx.at
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.07
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0826000, IRQ 87
82596.c: MAC of HP700 LAN read from EEPROM
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 78 F5 79 IRQ 87.
82596.c $Revision: 1.1 $
SCSI subsystem driver Revision: 1.00
3c700: consistent memory allocation failed
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0 
scsi0 : LASI SCSI 53c700
  Vendor: TEAC      Model: FC-1     HF   07  Rev: RV B
  Type:   Direct-Access                      ANSI SCSI revision: 01 CCS
  Vendor: FUJITSU   Model: M2694ES-512       Rev: 812A
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
Attached scsi disk sdb at scsi0, channel 0, id 1, lun 0
sda : READ CAPACITY failed.
sda : status = 1, message = 00, host = 0, driver = 08 
Current sd00:00: sns = 70  2
ASC= 4 ASCQ= 0
Raw sense data:0x70 0x00 0x02 0x00 0x00 0x00 0x00 0x08 0x00 0x00 0x00 0x00 0x04 0x00 0x00 0x00 
sda : block size assumed to be 512 bytes, disk size 1GB.  
Partition check:
 sda: I/O error: dev 08:00, sector 0
 I/O error: dev 08:00, sector 0
 unable to read partition table
scsi0: (1:0) Enabling Tag Command Queuing
SCSI device sdb: 2117025 512-byte hdwr sectors (1084 MB)
 sdb: unknown partition table
harmony: no irq found
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
usb.c: registered new driver hid
hid-core.c: v1.8.1 Andreas Gal, Vojtech Pavlik <vojtech@suse.cz>
hid-core.c: USB HID support drivers
mice: PS/2 mouse device common for all mice
P SDC: HP SDC at 0xf0821000, IRQ 94 (NMI IRQ 93)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
--7AUc2qLy4jB3hD7Z--


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From: "Derek Ellis" <Derek.Ellis@us.fortis.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] soft power and power light on 712/60
Date: Tue, 01 Apr 2003 08:59:43 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:18136

Hello,

I have sort of a weird problem.  I installed Debian 3.0 on Sunday and it =
came up great on my 712/60.  The only problem is the soft-power switch do=
esn't work and the power light flashes while searching for the boot devic=
e and then goes off once it starts booting. =20

Output of uname -a:
Linux gecko 2.4.20-32 #1 Sat Mar 22 14:03:22 CET 2003 parisc unknown
and /proc/sys/kernel/soft-power =3D 1

The only thing unusual about the setup is that I replaced the old 500mb H=
P hard drive with a 4.5gig IBM drive with a 68pin-50pin converter.

Is the drive and converter causing the problem, or is there something I c=
an do software wise to fix this?

Thanks,
Derek Ellis

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From: "Joel Soete" <jsoe0708@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] soft power and power light on 712/60
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Xref: news.gmane.org gmane.linux.ports.parisc:18137

>
>The only thing unusual about the setup is that I replaced the old 500mb
HP
>hard drive with a 4.5gig IBM drive with a 68pin-50pin converter.
>
Hmm it is highly probable.

Four years ago, for a project of upgrade 712 workstation, we asked to HP
if it was possible to put internal (SE) 4Gb disk. HP said that it was only
supported on 712/100.

Later, I had the opportunity to test Linux on a old 4Gb (SE) external disk
with an old 712/60. (Even thought it was the very begining, it still works
fine and help me a lot). Then I remember that 'not supported' didn' t means
that it would not works. So I removed this disk from its enclosure and put
it into the workstation. Well it works but not for a long time: apparently
it warmed too much  but fortunately not too long time (so I can put it back
in its original enclosure and continu to work). So there are an actual problem
of heat exchange in this small box?

>Is the drive and converter causing the problem, or is there something I
can
>do software wise to fix this?
>
For above mentioned project, we also use external SE 4Gb disk with wide (68
pins) connector without pb. Is your 4.5Gb IBM disk is well of SE type?

hth,
    Joel

---------------------------------
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From: "Joel Soete" <jsoe0708@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PIMINFO
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Xref: news.gmane.org gmane.linux.ports.parisc:18138

Hi all,

After the test of 2.4.20-pa28 smp 64 bits, I got a piminfo after the system
failed to boot.

Right now, thanks to dump_analyse.sh, I can just take advantage of the 'IIA
Offset' (eg IAOQ) info.

Is there somewhere some public doc to take advantage of the other info as
'Chassis code' ...?

Thanks,
    Joel


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From: "Derek Ellis" <Derek.Ellis@us.fortis.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] soft power and power light on 712/60
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Xref: news.gmane.org gmane.linux.ports.parisc:18139

I have had no heat problems.  The IBM drive is a 68-pin SE drive from '98=
.  It runs very cool and never gets too hot to touch.  I  put it internal=
ly since that was easier than finding an unused external enclosure.

Did the soft power & light work with the external enclosure?

Thanks,
Derek

>>> "Joel Soete" <jsoe0708@tiscali.be> 04/01/03 11:06AM >>>
>
>The only thing unusual about the setup is that I replaced the old 500mb
HP
>hard drive with a 4.5gig IBM drive with a 68pin-50pin converter.
>
Hmm it is highly probable.

Four years ago, for a project of upgrade 712 workstation, we asked to HP
if it was possible to put internal (SE) 4Gb disk. HP said that it was onl=
y
supported on 712/100.

Later, I had the opportunity to test Linux on a old 4Gb (SE) external dis=
k
with an old 712/60. (Even thought it was the very begining, it still work=
s
fine and help me a lot). Then I remember that 'not supported' didn' t mea=
ns
that it would not works. So I removed this disk from its enclosure and pu=
t
it into the workstation. Well it works but not for a long time: apparentl=
y
it warmed too much  but fortunately not too long time (so I can put it ba=
ck
in its original enclosure and continu to work). So there are an actual pr=
oblem
of heat exchange in this small box?

>Is the drive and converter causing the problem, or is there something I
can
>do software wise to fix this?
>
For above mentioned project, we also use external SE 4Gb disk with wide (=
68
pins) connector without pb. Is your 4.5Gb IBM disk is well of SE type?

hth,
=20   Joel

---------------------------------
Vous surfez avec une ligne classique ?
Economisez jusqu'=E0 25% avec Tiscali Complete !
Offre sp=E9ciale : premi=E8re ann=E9e d'abonnement offerte.
... Plus d'info sur http://complete.tiscali.be=20



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From: "FUHRMAN,SCOTT (HP-Boise,ex1)" <scott.fuhrman@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Sound on C3000
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Xref: news.gmane.org gmane.linux.ports.parisc:18140

Hi,

Just wondering if anyone else has gotten sound to work on this box, and
if so, how.

I ham enjoying a C3000 (400MHz) machine running hppa Debian, with kernel
2.4.20-32.
Everything is working except the sound.  Sound server can start up, but
does not have a device to output to.  

I checked dmesg and /var/log/messages and did not see anything where the
sound device is being configured, but it looks as though it may be
suported from the info on parisc-linux.org.  The device is a 

AD1889 sound chip (Analog Devices) according to this page:

 http://hwdb.parisc-linux.org/view.php3?type=machine&name=C3000

Anyway, if anyone has had any success in this matter please do tell!


Thanks,




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Hello !

The PDC driver supports both directions, IN and OUT. The PDC console 
driver was ported from the full serial driver interface, some services
not needed for poor console support are dummy routines.

So the serial console cannot be used for MODEM and other full-blown
serial devices, but is a fully functional console device including
all UNIX like features (login is working like on all other serial
devices).

He Ryan, by the way:
Why is my driver (PDC console) NOT in the mainstream kernel 2.5 ?
Even your driver covers a couple of machines, I do not see in the
MUX driver the replacement !
I agree, that the MUX driver should be used on machines with that
MUX interface. But the idea of my PDC driver was to support a fallback
driver using the ROM console usable on all machines, independent of
special setups.

I many architectures such a fallback driver is present. I remeber the
case, there was an failure in the HW-detection on my SUN Sparc-2, and
the kernel used a ROM console driver instead of the frame buffer driver
for screen/keyboard. This driver was awfully slow, and I do not
recommand it, but such a fallback driver should part of a kernel
delivery !!

So we should think about adding this driver also, independent of
al the other drivers included for console (and although the other
drivers should alwaysb be preferred).

Christoph



Ryan Bradetich wrote:
>>I was going through some of the FAQ and the mailing list archive and
>>understand that the PDC console is not a full blown console and can only
>>display output. Is is true that the PDC console cannot accept keyboard
>>input? Or am I missing something?
> 
> 
> Hmm.. The pdc_console has both read and write capabilities.  We used the
> PDC console for K/E class systems before the SerialMux driver was
> written.  I am not familiar with the PDC simulator, but I would be
> willing to test the pdc console again on K-Class.
> 
> Which kernel are you using?
> 
> Thanks,
> 
> - Ryan
> 
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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Hello again!

There are two drivers, but they depend.

Int arch/parisc/kernel driver implements the kernel "printk()" (the
internal kernel console). This driver has NO device name, as it
cannot be access as /dev/ttyB0. BUT: This driver is register under
the name "ttyB0" to be selected as preferred device on the kernel
paramter line with "console=ttyB0".

The drivers/char driver is the full PDC serial console driver as a
TTY driver (like all the other serial drivers). This driver is
registers as MAJOR 11, MINOR 0 driver in the TTY interface and
supports fully TTY functionality (althogh some routines are dummy,
e.g. you cannot change the BAUD RATE, etc...).
The low lever routione (printing out a character, polling the keyboard)
are implemented in the first mentioned driver..

The third driver play a role is the "/dev/console" tty driver, which
assosiates the two drivers above as console driver. So the kernel
paramter line also assigns the "/dev/ttyB0" as the driver behind the
"/dev/console". And this driver is running bidirectional.

So commig to your simulator. I do not know this, but perhaps you
have simple a problem with the timing here. My PDC console drive
is in opposite to other typical TTY drivers running in POLLING
mode. The PDC interface does not support a interrupt-like handling.
So the PDC driver polls all 30ms (as far as I remember) if a key
was pressed on the PDC console. My be, the time progress has
other properties on the simulator ....

Christoph



Naresh wrote:
> Hi,
> 
> I am trying to boot PA-Linux off a PA-RISC simulator. I am facing a
> problem with the PDC console. On my first attempt, I saw the message
> asking me to switch the console. So I  turned the PDC console config
> option on ( the serial mux option was turned off). I added the parameter
> 'console=ttyB0' in 'palo.conf'. I created the device file '/dev/ttyB0'
> with major/minor = 11/0 on my ramdisk. With this, the kernel boots up on
> the simulator all the way upto the sash ( Stand-alone shell) prompt. I
> can even see the prompt. But, the problem is that this console doesnt
> seem to be accepting input from the keyboard. It is kind of like in a
> locked state.
> 
> I was going through some of the FAQ and the mailing list archive and
> understand that the PDC console is not a full blown console and can only
> display output. Is is true that the PDC console cannot accept keyboard
> input? Or am I missing something?
> 
> I also see that there are 2 versions of the PDC console driver :
> 'arch/parisc/kernel/pdc_cons.c' and 'drivers/char/pdc_console.c'. Both
> use the device ttyB. From what I understand, the former is used before
> any of the serial drivers are initialized during boot, and has only
> write capability. The latter is the full-blown console driver (though I
> am not sure if it has write capability). Is my understanding correct?
> 
> I am using the source tarball 'palo-latest.tar.gz' from the parisc-linux
> cvs respository and cross-compiling this on an x86 box.
> 
> Regards,
> Naresh.
> 
> PS: My "init" process is 'sash' and I also have a '/dev/console' device
> ( major=5 minor=1) on my ramdisk. The Serial driver config option is on
> and I can see it being initialized in the boot path after the PDC
> console.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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> I ham enjoying a C3000 (400MHz) machine running hppa Debian, with kernel
> 2.4.20-32.
> Everything is working except the sound.  Sound server can start up, but
> does not have a device to output to.  

did you load the ad1889 module (or build it into your kernel?) I'm not
sure it's enabled by default... it also doesn't work 100% of the time...
but if the module loads, you should see a message in your bootup log
that identifies the device.

the ad1889 driver is on my todo list of things to fix.... too much to
do, too little time to hack :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] Sorry about the CVS email battering.
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PA'ers,

For those of you on cvs.parisc-linux.org I would like to apologize for
the current email deluge. I'm importing glibc into CVS, and what we
believed to be a method that didn't email-spam  wasn't quite so.

The upside is that I'm going to give Willy's CVS procedures a try, and 
I'll be working on having glibc sources up to date on a weekly basis.

Cheers,
Carlos.


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I got a HP 9000 D-Class D270 running Debian 3.0r1 with linux version 
2.4.17-32, and the instalation detected one of two network cards thats 
comes with the server. It detected the lan card that is integrated to 
the server, but i need to use the both cards. The one it did not 
detect is an eisa lan card, HP A4308-66001. Can someone help, o can i 
put a isa card to this server.

Thanks,
Rich



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On Tue, Apr 01, 2003 at 04:03:38PM -0600, Ricardo Jose Guevara Ochoa wrote:
> I got a HP 9000 D-Class D270 running Debian 3.0r1 with linux version 
> 2.4.17-32, and the instalation detected one of two network cards thats 
> comes with the server. It detected the lan card that is integrated to 
> the server, but i need to use the both cards. The one it did not 
> detect is an eisa lan card, HP A4308-66001. Can someone help, o can i 
> put a isa card to this server.

I suggest you update your kernel to at least 2.4.19, and I think 2.4.20
would be a wiser choice.  IIRC we didn't support the ISA or EISA slots at
all in 2.4.17.  This doesn't guarantee the card will work, but it might
do.  I had a 100VG card working in a 715 when I was doing EISA initially.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Tue, Apr 01, 2003 at 11:16:16PM +0100, Matthew Wilcox wrote:
> On Tue, Apr 01, 2003 at 04:03:38PM -0600, Ricardo Jose Guevara Ochoa wrote:
> > I got a HP 9000 D-Class D270 running Debian 3.0r1 with linux version 
> > 2.4.17-32, and the instalation detected one of two network cards thats 
> > comes with the server. It detected the lan card that is integrated to 
> > the server, but i need to use the both cards. The one it did not 
> > detect is an eisa lan card, HP A4308-66001. Can someone help, o can i 
> > put a isa card to this server.
> 
> I suggest you update your kernel to at least 2.4.19, and I think 2.4.20
> would be a wiser choice.  IIRC we didn't support the ISA or EISA slots at
> all in 2.4.17.  This doesn't guarantee the card will work, but it might
> do.  I had a 100VG card working in a 715 when I was doing EISA initially.

AFAIK EISA DMA is still unsupported, though strides have been made in
the overall architecture to support non-PCI DMA in Linux more elegantly.

-- 
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On Tue, Apr 01, 2003 at 01:42:40PM -0500, FUHRMAN,SCOTT (HP-Boise,ex1) wrote:
> I ham enjoying a C3000 (400MHz) machine running hppa Debian, with kernel
> 2.4.20-32.
> Everything is working except the sound.  Sound server can start up, but
> does not have a device to output to.  

As randolph pointed out, you need to "modprobe ad1889".
If that doesn't work, apt-get the kernel source and rebuild
with ad1889 if you are determined to have a go at it.

ad1889 driver "works" if you use a very low standard to define "working".
ad1889 only takes .wav format input at 48Khz. I forget the command
line for mpg321 to directed mpg321 to spew .wav format directly
at the /dev/audio device. And when playing mp3s, I wouldn't stress
the machine with other workloads while it's running.

grant


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Subject: [parisc-linux] RAID issues on my C3000
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Hey all,
I was just following the RAID HOWTO posted awile back and I ran into a few problems.  I've gotten all the way through creating my RAID partitions and copying the data over via tar, making it bootable (after upgrading my PALO from source - it is now 1.2), editing all the files on the new md devices, and then rebooting.  When I try to boot from the new degraded RAID disk I get that the device is hard booted (with PALO 1.0 not 1.2), displays my patition info (but displays the partitions as "unknown" and not RAID probably due to the Palo 1.0 version), and spits out "Selected kernal: /vmlinux from partition 2" then "Error: Partition 2 must be ext2".  I've created 4 primary partitions on the drive in the following order PALO, boot, swap, and root.  Both Palo and boot are with the first 2GB.  I h
 ave tried to stop the arrays and reconfigure them as ext2 with no luck.  Any help would be appreciated.
Thanks,
derek



---------------------------------
Do you Yahoo!?
Yahoo! Tax Center - File online, calculators, forms, and more
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<P>Hey all,
<P>I was just following the RAID HOWTO posted awile back and I ran into a few problems.&nbsp; I've gotten all the way through creating my RAID partitions and copying the data over via tar, making it bootable (after upgrading my PALO from source - it is now 1.2), editing all the files on the new md devices, and then rebooting.&nbsp; When I try to boot from the new degraded RAID disk I get that the device is hard booted (with PALO 1.0 not 1.2), displays my patition info (but displays the partitions as "unknown" and not RAID probably due to the Palo 1.0 version), and spits out "Selected kernal: /vmlinux from partition 2" then "Error: Partition 2 must be ext2".&nbsp; I've created 4 primary partitions on the drive in the following order PALO, boot, swap, and root.&nbsp; Both Palo and boot are w
 ith the first 2GB.&nbsp; I have tried to stop the arrays and reconfigure them as ext2 with no luck.&nbsp; Any help would be appreciated.
<P>Thanks,
<P>derek</P><p><br><hr size=1>Do you Yahoo!?<br>
<a href="http://us.rd.yahoo.com/finance/mailsig/*http://tax.yahoo.com">Yahoo! Tax Center</a> - File online, calculators, forms, and more
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>
>Hey all,
>I was just following the RAID HOWTO posted awile back and I ran into a few
>problems.

I do also for at least 3 of my b180 and it works fine :)


>  I've gotten all the way through creating my RAID partitions and
>copying the data over via tar, making it bootable (after upgrading my PALO
>from source - it is now 1.2), editing all the files on the new md devices,
>and then rebooting.  When I try to boot from the new degraded RAID disk
I
>get that the device is hard booted (with PALO 1.0 not 1.2), displays my
patition
>info (but displays the partitions as "unknown" and not RAID probably due
>to the Palo 1.0 version), and spits out "Selected kernal: /vmlinux from
partition
>2" then "Error: Partition 2 must be ext2".

This is typicaly the message from palo < 1.2 (I also encounter this same
message before figuring out that I forget to update palo on my actual root
disk).
So on your non-raid disk install the last palo dpkg (1.2) (I do it without
pb on a woody pre-libc 2.3.0).
[check the version with palo -? | grep version (must be now 1.2)]
relaunch:
# palo -f YourPathToNew/palo.conf -I YourRaidDIsk

It works for me and hope for you too.

Joel


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>
>I have had no heat problems.  The IBM drive is a 68-pin SE drive from '98.
> It runs very cool and never gets too hot to touch.

Well, that is nice 4u.

>  I  put it internally
>since that was easier than finding an unused external enclosure.
>
I well understand.
>Did the soft power & light work with the external enclosure?
>

Sorry, could not help you right now: my only linux boot disk (a Seagate)
is running a 64bits N (and it spend long time to reboot) and the rest are
only data disk used on hpux :(.

The very last stuff I foreseen that you could check is the symbios driver
compile into your kernel.
I personaly use the rev2 one (the only way I know to check this is by looking
into your kernel config file which stand normaly into your /boot dir).

hope this will help you anyway,
    Joel



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> -----Original Message-----
> From: Joel Soete [mailto:jsoe0708@tiscali.be]
> 
> >
> >The only thing unusual about the setup is that I replaced the old 500mb
HP
> >hard drive with a 4.5gig IBM drive with a 68pin-50pin converter.
> >
> Hmm it is highly probable.
> 
> Four years ago, for a project of upgrade 712 workstation, we asked to HP
> if it was possible to put internal (SE) 4Gb disk. HP said that it was only
> supported on 712/100.

The only reason I can imagine it should not work is addressing the
boot-image from the boot-prom.

Or else, it should not be called scsi...

> 
> Later, I had the opportunity to test Linux on a old 4Gb (SE) external disk
> with an old 712/60. (Even thought it was the very begining, it still works
> fine and help me a lot). Then I remember that 'not supported' didn' t
means
> that it would not works. So I removed this disk from its enclosure and put
> it into the workstation. Well it works but not for a long time: apparently
> it warmed too much  but fortunately not too long time (so I can put it
back
> in its original enclosure and continu to work). So there are an actual
problem
> of heat exchange in this small box?

When you look inside a 712, you should expect heat problems with the drive.
Its mounted in polysterene foam, also known for its perfect heat
insulation...

Hence, if you expect or experience heat problems in a 712, you can remove
the insulation and create real mounting brackets.


btw: all my ideas, not physically tested.

CBee

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<TITLE>RE: [parisc-linux] soft power and power light on 712/60</TITLE>
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<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: Joel Soete [<A =
HREF=3D"mailto:jsoe0708@tiscali.be">mailto:jsoe0708@tiscali.be</A>]</FON=
T>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt;</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;The only thing unusual about the setup is =
that I replaced the old 500mb HP</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;hard drive with a 4.5gig IBM drive with a =
68pin-50pin converter.</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;</FONT>
<BR><FONT SIZE=3D2>&gt; Hmm it is highly probable.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Four years ago, for a project of upgrade 712 =
workstation, we asked to HP</FONT>
<BR><FONT SIZE=3D2>&gt; if it was possible to put internal (SE) 4Gb =
disk. HP said that it was only</FONT>
<BR><FONT SIZE=3D2>&gt; supported on 712/100.</FONT>
</P>

<P><FONT SIZE=3D2>The only reason I can imagine it should not work is =
addressing the boot-image from the boot-prom.</FONT>
</P>

<P><FONT SIZE=3D2>Or else, it should not be called scsi...</FONT>
</P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Later, I had the opportunity to test Linux on a =
old 4Gb (SE) external disk</FONT>
<BR><FONT SIZE=3D2>&gt; with an old 712/60. (Even thought it was the =
very begining, it still works</FONT>
<BR><FONT SIZE=3D2>&gt; fine and help me a lot). Then I remember that =
'not supported' didn' t means</FONT>
<BR><FONT SIZE=3D2>&gt; that it would not works. So I removed this disk =
from its enclosure and put</FONT>
<BR><FONT SIZE=3D2>&gt; it into the workstation. Well it works but not =
for a long time: apparently</FONT>
<BR><FONT SIZE=3D2>&gt; it warmed too much&nbsp; but fortunately not =
too long time (so I can put it back</FONT>
<BR><FONT SIZE=3D2>&gt; in its original enclosure and continu to work). =
So there are an actual problem</FONT>
<BR><FONT SIZE=3D2>&gt; of heat exchange in this small box?</FONT>
</P>

<P><FONT SIZE=3D2>When you look inside a 712, you should expect heat =
problems with the drive. Its mounted in polysterene foam, also known =
for its perfect heat insulation...</FONT></P>

<P><FONT SIZE=3D2>Hence, if you expect or experience heat problems in a =
712, you can remove the insulation and create real mounting =
brackets.</FONT></P>
<BR>

<P><FONT SIZE=3D2>btw: all my ideas, not physically tested.</FONT>
</P>

<P><FONT SIZE=3D2>CBee</FONT>
</P>

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Subject: [parisc-linux] Re: c++/10274: internal compiler error:
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>>Category:       c++
>>Responsible:    unassigned
>>Synopsis:       internal compiler error:
>>Arrival-Date:   Mon Mar 31 10:06:01 UTC 2003

Just a small update:

The new precompiled g++ is now 3.3 20030331 and the error message become:
...
/tmp/ccJws8Pa.s: Assembler messages:
/tmp/ccJws8Pa.s:151786: Error: Field out of range [-262144..262143] (-290552).

Joel


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From: Michael Wood <mwood@its.uct.ac.za>
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Subject: Re: [parisc-linux] soft power and power light on 712/60
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On Tue, Apr 01, 2003 at 08:59:43AM -0600, Derek Ellis wrote:
> Hello,
> 
> I have sort of a weird problem.  I installed Debian 3.0 on Sunday and
> it came up great on my 712/60.  The only problem is the soft-power
> switch doesn't work and the power light flashes while searching for
> the boot device and then goes off once it starts booting.  

I don't know about the light, but a kernel upgrade might help the
switch.  Earlier kernels did not enable the power switch.  Not sure
which version made it work (although I thought the kernel on the Debian
3.0 CDs supported it.)  I haven't had a chance to run parisc linux for a
while, unfortunately, and the D270 I was using did nothing when the
power switch was switched, although the kernel I was running was
supposed to enable it, so maybe the kernel doesn't enable it for all
parisc machines?  (The switch did work in HPUX and I think it even
worked at some point in Linux and later stopped.)

-- 
Michael Wood <mwood@its.uct.ac.za>


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On Wed, Apr 02, 2003 at 11:23:52AM +0200, Michael Wood wrote:
> On Tue, Apr 01, 2003 at 08:59:43AM -0600, Derek Ellis wrote:

I've got a problem similar to yours with my 712-60 using 2.4.20-pa32
precompiled. The power light while searching for a suitable boot
media (as it should), then goes on as expected. The power switch does not
work. With earlier kernels (say 2.4.9-something) it worked. Any advice on
that ?


> > Hello,
> > 
> > I have sort of a weird problem.  I installed Debian 3.0 on Sunday and
> > it came up great on my 712/60.  The only problem is the soft-power
> > switch doesn't work and the power light flashes while searching for
> > the boot device and then goes off once it starts booting.  
> 
> -- 
> Michael Wood <mwood@its.uct.ac.za>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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I just ran the version of PALO on my root disk and it does say 1.2.  That was my original problem....
derek
 Joel Soete <jsoe0708@tiscali.be> wrote:
>
>Hey all,
>I was just following the RAID HOWTO posted awile back and I ran into a few
>problems.

I do also for at least 3 of my b180 and it works fine :)


> I've gotten all the way through creating my RAID partitions and
>copying the data over via tar, making it bootable (after upgrading my PALO
>from source - it is now 1.2), editing all the files on the new md devices,
>and then rebooting. When I try to boot from the new degraded RAID disk
I
>get that the device is hard booted (with PALO 1.0 not 1.2), displays my
patition
>info (but displays the partitions as "unknown" and not RAID probably due
>to the Palo 1.0 version), and spits out "Selected kernal: /vmlinux from
partition
>2" then "Error: Partition 2 must be ext2".

This is typicaly the message from palo < 1.2 (I also encounter this same
message before figuring out that I forget to update palo on my actual root
disk).
So on your non-raid disk install the last palo dpkg (1.2) (I do it without
pb on a woody pre-libc 2.3.0).
[check the version with palo -? | grep version (must be now 1.2)]
relaunch:
# palo -f YourPathToNew/palo.conf -I YourRaidDIsk

It works for me and hope for you too.

Joel


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<P>I just ran the version of PALO on my root disk and it does say 1.2.&nbsp; That was my original problem....
<P>derek
<P>&nbsp;<B><I>Joel Soete &lt;jsoe0708@tiscali.be&gt;</I></B> wrote:
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"><BR>&gt;<BR>&gt;Hey all,<BR>&gt;I was just following the RAID HOWTO posted awile back and I ran into a few<BR>&gt;problems.<BR><BR>I do also for at least 3 of my b180 and it works fine :)<BR><BR><BR>&gt; I've gotten all the way through creating my RAID partitions and<BR>&gt;copying the data over via tar, making it bootable (after upgrading my PALO<BR>&gt;from source - it is now 1.2), editing all the files on the new md devices,<BR>&gt;and then rebooting. When I try to boot from the new degraded RAID disk<BR>I<BR>&gt;get that the device is hard booted (with PALO 1.0 not 1.2), displays my<BR>patition<BR>&gt;info (but displays the partitions as "unknown" and not RAID probably due<BR>&gt;to the Palo 1.0 ver
 sion), and spits out "Selected kernal: /vmlinux from<BR>partition<BR>&gt;2" then "Error: Partition 2 must be ext2".<BR><BR>This is typicaly the message from palo &lt; 1.2 (I also encounter this same<BR>message before figuring out that I forget to update palo on my actual root<BR>disk).<BR>So on your non-raid disk install the last palo dpkg (1.2) (I do it without<BR>pb on a woody pre-libc 2.3.0).<BR>[check the version with palo -? | grep version (must be now 1.2)]<BR>relaunch:<BR># palo -f YourPathToNew/palo.conf -I YourRaidDIsk<BR><BR>It works for me and hope for you too.<BR><BR>Joel<BR><BR><BR>---------------------------------<BR>Vous surfez avec une ligne classique ?<BR>Economisez jusqu' 25% avec Tiscali Complete !<BR>Offre spciale : premire anne d'abonnement offerte.<BR>... Plus d
 'info sur http://complete.tiscali.be<BR><BR></BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
<a href="http://us.rd.yahoo.com/finance/mailsig/*http://tax.yahoo.com">Yahoo! Tax Center</a> - File online, calculators, forms, and more
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I wonder if the problem is with the precompiled 2.4.20-pa32 kernel, since=
=20that is what I am using.

Last night I also put my old 500MB HP drive back in and the light & power=
=20switch worked correctly with the 2.4.18 kernel.  I then used the netwo=
rk install CD (with kernel 2.4.20-pa32) to reinstall that drive.  After t=
he install the light & power didn't work, so this leads me to believe the=
re is something with that kernel.

Derek

>>> root <root@cdc712-9.cdc.polimi.it> 04/02/03 05:38AM >>>
On Wed, Apr 02, 2003 at 11:23:52AM +0200, Michael Wood wrote:
> On Tue, Apr 01, 2003 at 08:59:43AM -0600, Derek Ellis wrote:

I've got a problem similar to yours with my 712-60 using 2.4.20-pa32
precompiled. The power light while searching for a suitable boot
media (as it should), then goes on as expected. The power switch does not=

work. With earlier kernels (say 2.4.9-something) it worked. Any advice on=

that ?


> > Hello,
> >=20
> > I have sort of a weird problem.  I installed Debian 3.0 on Sunday and=

> > it came up great on my 712/60.  The only problem is the soft-power
> > switch doesn't work and the power light flashes while searching for
> > the boot device and then goes off once it starts booting. =20
>=20
> --=20
> Michael Wood <mwood@its.uct.ac.za>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org=20
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux=20
_______________________________________________
parisc-linux mailing list
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http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

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Subject: [parisc-linux] Kernel 2.4.20 build error
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I downloaded the latest kernel for the parisc family, and when i tried 
to compile and build the kernel it gave me an error in the make 
vmlinux:
ccio-dma.c: In function `ccio_probe':
ccio-dma.c:1551: `ccio_proc_info' undeclared (first use in this 
function)
ccio-dma.c:1551: (Each undeclared identifier is reported only once
ccio-dma.c:1551: for each function it appears in.)
ccio-dma.c:1553: `ccio_resource_map' undeclared (first use in this 
function)
make[1]: *** [ccio-dma.o] Error 1
make[1]: Leaving directory 
`/home/rguevara/source/linux/arch/parisc/kernel'
make: *** [_dir_arch/parisc/kernel] Error 2

I'm tried to compile in a HP 9000 D-Class D270 running Debian 3.0r1 
with linux version 2.4.17-32 and gccv 3.0.4
any suggestions.
Ricardo J Guevara
 




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On Wed, Apr 02, 2003 at 04:23:10PM -0600, Ricardo Jose Guevara Ochoa wrote:
> I downloaded the latest kernel for the parisc family, and when i tried 
> to compile and build the kernel it gave me an error in the make 
> vmlinux:
> ccio-dma.c: In function `ccio_probe':
> ccio-dma.c:1551: `ccio_proc_info' undeclared (first use in this 
> function)

turn on CONFIG_PROC_FS

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From - Thu Nov 08 21:27:23 2018
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From: "Ricardo Jose Guevara Ochoa" <jguevara@unitec.edu>
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Subject: Re: [parisc-linux] Kernel 2.4.20 build error
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> 
> turn on CONFIG_PROC_FS

Where do i turn it on? in a file /arch/parisc/defconfig it's already 
turn on.

thanks in advance,
Ricardo J Guevara

----- Original Message -----
From: Matthew Wilcox <willy@debian.org>
Date: Wednesday, April 2, 2003 4:41 pm
Subject: Re: [parisc-linux] Kernel 2.4.20 build error

> On Wed, Apr 02, 2003 at 04:23:10PM -0600, Ricardo Jose Guevara 
> Ochoa wrote:
> > I downloaded the latest kernel for the parisc family, and when i 
> tried 
> > to compile and build the kernel it gave me an error in the make 
> > vmlinux:
> > ccio-dma.c: In function `ccio_probe':
> > ccio-dma.c:1551: `ccio_proc_info' undeclared (first use in this 
> > function)




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On Thu, Apr 03, 2003 at 08:55:11AM -0600, Ricardo Jose Guevara Ochoa wrote:
> > 
> > turn on CONFIG_PROC_FS
> 
> Where do i turn it on? in a file /arch/parisc/defconfig it's already 
> turn on.

that's only the default configuration.  Your configuration is in .config

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Thu, 2003-04-03 08:55:11 -0600, Ricardo Jose Guevara Ochoa <jguevara@uni=
tec.edu>
wrote in message <5849494679bc7010.79bc701058494946@unitec.edu>:
> >=20
> > turn on CONFIG_PROC_FS
>=20
> Where do i turn it on? in a file /arch/parisc/defconfig it's already=20
> turn on.

"make menuconfig" or "make config" of "make xconfig" or ...

MfG, JBG

--=20
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   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: [parisc-linux] break 0,0: pid=304 command jade ??
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Hi all,

I just buy A. S. Tanenbaum's book "Operating Systems: Design and Implementation"
and its MINIX should run on bochs.

I try so to compile the last bochs release onto a my unstable debian pariec
linux.
This failled at the build of docbook because 'jade' failed on following
trap:
Trace/breakpoint trap

# dmesg show me then:
break 0,0: pid=304 command='jade'

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 4072b5a4 4071a687 00000005
r04-07  4072b4d4 faf0060c 00000000 40026e40
r08-11  40000238 0000000a 00000000 00000000
r12-15  000dbb28 000f7508 000f7508 000f75a8
r16-19  00000000 00000000 00014000 4072b4d4
r20-23  00000000 00000000 40000238 00000005
r24-27  40000658 0000001a 00000001 00100600
r28-31  00000005 0000005f faf00700 4071a687
sr0-3   00000300 00000300 00000000 00000300
sr4-7   00000300 00000300 00000300 00000300

IASQ: 00000300 00000300 IAOQ: 4000023b 4000023f
 IIR: 00000000    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 1e580000 CR31: 103d0000
 ORIG_R28: 00000000

Is somebody could help me to understand what happened with this trap?

Thanks in advance,
    Joel



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> I try so to compile the last bochs release onto a my unstable debian pariec
> linux.
> This failled at the build of docbook because 'jade' failed on following
> trap:
> Trace/breakpoint trap
> 
> # dmesg show me then:
> break 0,0: pid=304 command='jade'

usually this means a program tried to branch to a NULL (or otherwise 
invalid) address... 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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 Hello,
 I work for a software company in Brazil specialized in Linux 
 development under contract by HP.
 
 We're currently working in a project that needs investigate what are missing 
in kernel to run applications in 64 bits userspace. I need only known what 
are missing in kernel and what kernel do you recomend ? 2.4 or 2.5 ? 

The patchs for both kernels(2.4.x and 2.5.x) are in the same stage?

Thank you!

Rodrigo



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I tried to boot the linux kernel 2.4.20pa32, and it gave me this error:

Boot device can't seek past 2gb( ignore next error ).byteio_read: 
seekreed()return -1 excepted 2048
ext2_get:read errorError: open /kernel/linux/vmlinux from partition 2 
failed

any ideas?

Ricardo J Guevara




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On Thu, Apr 03, 2003 at 12:10:44PM -0600, Ricardo Jose Guevara Ochoa wrote:
> I tried to boot the linux kernel 2.4.20pa32, and it gave me this error:
> 
> Boot device can't seek past 2gb( ignore next error ).byteio_read: 
> seekreed()return -1 excepted 2048
> ext2_get:read errorError: open /kernel/linux/vmlinux from partition 2 
> failed

your /boot partition extends above the 2GB boundary.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> 
> your /boot partition extends above the 2GB boundary.
> 
> 

The server came with more disks, can i put the kernel in one of those 
disk, and boot from there?

thanks in advance,
Ricardo J Guevara



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On Thu, Apr 03, 2003 at 03:12:35PM -0300, Rodrigo Colao Merlo wrote:
>  Hello,
>  I work for a software company in Brazil specialized in Linux 
>  development under contract by HP.
>  
>  We're currently working in a project that needs investigate what are missing 
> in kernel to run applications in 64 bits userspace. I need only known what 
> are missing in kernel and what kernel do you recomend ? 2.4 or 2.5 ? 

Yes, Leandro from HP Brazil kept posting asking that question.
Unfortunately, he kept on asking even after he'd been given a fairly
comprehensive list of things to do, so I think people couldn't be bothered
to tell him any more.

Probably the best list of things to do would be the thread starting at
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/018911.html

As to which kernel to base it on; most of the work is kernel-independent.
It's all about making the toolchain work properly.  There's a certain
amount of work to do in the kernel, but there's some design work to do
up-front first.  It shouldn't be hard to do it to either kernel and then
port to the other.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Thu, Apr 03, 2003 at 12:35:02PM -0600, Ricardo Jose Guevara Ochoa wrote:
> The server came with more disks, can i put the kernel in one of those 
> disk, and boot from there?

certainly.  probably best to take a second disc, partition it properly
and make that the new root disc.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Thanks!, i will boot the new kernel using another disc, but with the 
root of the old kernel, my Question if it will get the old 
configuration and boot as if where the old kernel(but the new) or it 
will change something?

Thanks in advance,
Ricardo J Guevara

----- Original Message -----
From: Matthew Wilcox <willy@debian.org>
Date: Thursday, April 3, 2003 12:46 pm
Subject: Re: [parisc-linux] Kernel boot error

> On Thu, Apr 03, 2003 at 12:35:02PM -0600, Ricardo Jose Guevara 
> Ochoa wrote:
> > The server came with more disks, can i put the kernel in one of 
> those 
> > disk, and boot from there?
> 
> certainly.  probably best to take a second disc, partition it 
properly
> and make that the new root disc.
> 
> -- 
> "It's not Hollywood.  War is real, war is primarily not about 
> defeat or
> victory, it is about death.  I've seen thousands and thousands of 
> dead bodies.
> Do you think I want to have an academic debate on this subject?" --
> Robert Fisk
> 
> 



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On Wed, Apr 02, 2003 at 10:35:56AM +0200, "Beerse, Corn?" wrote:
> The only reason I can imagine it should not work is addressing the
> boot-image from the boot-prom.
> 
> Or else, it should not be called scsi...

You are mixing up marketing, implementation, and "supported".
HP decided the older box wasn't worth supporting.
I'l hazard a guess the "upgrade" would not generate enough revenue
to offset the additional qualification/inventory/support burden.

And SCSI implementations are not always compatible because they
don't implement all the same features. Delayed spinup and
Target-Initiated Syncronous Negotiation are two SCSI disk features
that early host controller firmware typically have trouble with.

grant


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> As to which kernel to base it on; most of the work is kernel-independent.
> It's all about making the toolchain work properly.  There's a certain
> amount of work to do in the kernel, but there's some design work to do
> up-front first.  It shouldn't be hard to do it to either kernel and then
> port to the other.

With respect to the toolchain, you should be aware that there are
two different GNU linkers.  The 64-bit linker was designed for HP-UX
operation and was written more or less from scratch.  The 32-bit
linker was ported I believe from the i386 port and is better
suited to linux use.  It has had more testing.  If the 32-bit linker
is ported to 64 bits, you will have to deal with the different
handling of function descriptors (OPDs).  This is also an issue
for the parisc specific code in glibc used for the dynamic loader.
Code to handle various 64-bit relocations would need to be added
to the 32-bit linker.  Management of stub groups might also be an
issue although the 32-bit linker currently does a better job of this.

The current 64-bit linker is broken in a number of ways.  These
problems might get fixed in the coming months but it would be nice 
if we could dispense with having two different linkers.  If
the current 64-bit linker is used for linux, then the problems
with link-once sections, symbol overloading, symbol visibility,
PHDRs, static links, etc., will need fixing.  Fixing these problems
could be 2-3 months work, or more, for someone who knows their way
around the linker.

What you need to do is to look at the parisc specific code in the
kernel, binutils and glibc.  Carlos O'Donell <carlos@baldric.uwo.ca>
did some hacking a few months ago to try to get a simple static linked
application to run in 64-bit mode.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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John,

> With respect to the toolchain, you should be aware that there are
> two different GNU linkers.  The 64-bit linker was designed for HP-UX
> operation and was written more or less from scratch.  The 32-bit
> linker was ported I believe from the i386 port and is better
> suited to linux use.  It has had more testing.  If the 32-bit linker
> is ported to 64 bits, you will have to deal with the different
> handling of function descriptors (OPDs).  This is also an issue
> for the parisc specific code in glibc used for the dynamic loader.
> Code to handle various 64-bit relocations would need to be added
> to the 32-bit linker.  Management of stub groups might also be an
> issue although the 32-bit linker currently does a better job of this.
 
Why was a 64-bit linker written for HPUX, couldn't the normal HPUX
linker have been used?

As for function descriptors, I think that I'll be reworking that code 
(glibc) in the next few months.... following somewhat what H.J.Lu 
has suggested and ia64 / PowerPC64 implement. This should make things 
easier to work with.

> The current 64-bit linker is broken in a number of ways.  These
> problems might get fixed in the coming months but it would be nice 
> if we could dispense with having two different linkers.  If
> the current 64-bit linker is used for linux, then the problems
> with link-once sections, symbol overloading, symbol visibility,
> PHDRs, static links, etc., will need fixing.  Fixing these problems
> could be 2-3 months work, or more, for someone who knows their way
> around the linker.

I think extending the 32-bit linker would be a better use of resources. 

> What you need to do is to look at the parisc specific code in the
> kernel, binutils and glibc.  Carlos O'Donell <carlos@baldric.uwo.ca>
> did some hacking a few months ago to try to get a simple static linked
> application to run in 64-bit mode.

Not true 64-bit since leaving the kernel doesn't mean the processor
stays in wide mode. I need to make some more kernel patches to
enable the start of a static 64-bit userspace.

I've pulled glibc into cvs.parisc-linux.org again, and I'll be 
updating frequently and championing our patches back to libc-alpha 
in the next month.

I think that before a 64-bit userspace gets started, I'm going to
be working at getting glibc to pass "make -k check" without failure,
followed by lots of TLS work so we keep up with the changes in glibc
for our 32-bit userspace :)

c.


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> Why was a 64-bit linker written for HPUX, couldn't the normal HPUX
> linker have been used?

I can't answer that.  Presumably, HP funded the development.  Possibly,
they were considering using the GNU linker but then decided to go with
a different port.  I do most of my 64-bit testing now with the HPUX
linker.  There were some rough edges in using the HP linker with GCC
a few months ago but these have been resolved.

The HP linker is not compliant with the sysv ELF ABI in its handling
of weak symbols.  Undefined weak symbols are supposed to resolve
to a value of 0, and the linker is not supposed to search archive
libraries for undefined weaks.  I tried hacking GNU ld to see if
this could be fixed but this isn't possible since the dynamic loader
has the same behavior.  Basically, weak symbols appear to behave
like secondary definition symbols with the SOM runtime.  The lack
of proper weak support impacts GCC thread support.

HP doesn't support DT_INIT and DT_FINI.  They also used a non
standard implementation for DT_ARRAY_INIT and DT_ARRAY_FINI.
Their section flags for these are non compliant and we needed an
assembler hack to handle initializers and finalizers.

Finally, the HP linker doesn't know about gnu linkonce sections but
I haven't hit any situation where it causes a functional problem.
Probably, it only affect program startup time.

> As for function descriptors, I think that I'll be reworking that code 
> (glibc) in the next few months.... following somewhat what H.J.Lu 
> has suggested and ia64 / PowerPC64 implement. This should make things 
> easier to work with.

I presume you are talking about the implementation for lazy linking.
I know the ia64 implementation of function descriptors differs from
what is done for the 32-bit hppa ports.

> Not true 64-bit since leaving the kernel doesn't mean the processor
> stays in wide mode. I need to make some more kernel patches to
> enable the start of a static 64-bit userspace.

Ok.  I should note that the current 64-bit GNU ld doesn't know how
to do a true static link.

> I think that before a 64-bit userspace gets started, I'm going to
> be working at getting glibc to pass "make -k check" without failure,
> followed by lots of TLS work so we keep up with the changes in glibc
> for our 32-bit userspace :)

I certainly agree with that plan.  64-bit code is always going to
be slower than 32-bit code, so it shouldn't be used unless really
needed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: "kenneth westelinck" <kennywest1@hotmail.com>
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Subject: Re: [parisc-linux] soft power and power light on 712/60
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I had a similar problem a while ago. The following URL should lead you to
the discussion I had that time:
http://lists.parisc-linux.org/hypermail/parisc-linux/8454.html
So eventually, the soft power worked, and is still working on my 712/60 even
with the latest kernel. Please note that I build the kernels myself, I never
use prebuilt ones (unless for installing ;) ). You should find my working
.config as an attachment
(http://lists.parisc-linux.org/hypermail/parisc-linux/att-8454/02-.config).
You can use this one, or do a diff with your .config to see what you're
missing.

Hope this helps.

Kenneth

----- Original Message -----
From: "root" <root@cdc712-9.cdc.polimi.it>
To: "Michael Wood" <mwood@its.uct.ac.za>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Wednesday, April 02, 2003 1:38 PM
Subject: Re: [parisc-linux] soft power and power light on 712/60


> On Wed, Apr 02, 2003 at 11:23:52AM +0200, Michael Wood wrote:
> > On Tue, Apr 01, 2003 at 08:59:43AM -0600, Derek Ellis wrote:
>
> I've got a problem similar to yours with my 712-60 using 2.4.20-pa32
> precompiled. The power light while searching for a suitable boot
> media (as it should), then goes on as expected. The power switch does not
> work. With earlier kernels (say 2.4.9-something) it worked. Any advice on
> that ?
>
>
> > > Hello,
> > >
> > > I have sort of a weird problem.  I installed Debian 3.0 on Sunday and
> > > it came up great on my 712/60.  The only problem is the soft-power
> > > switch doesn't work and the power light flashes while searching for
> > > the boot device and then goes off once it starts booting.
> >
> > --
> > Michael Wood <mwood@its.uct.ac.za>
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>


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On Fri, Apr 04, 2003 at 08:09:00AM +0200, kenneth westelinck wrote:
> I had a similar problem a while ago. The following URL should lead you to
> the discussion I had that time:
> http://lists.parisc-linux.org/hypermail/parisc-linux/8454.html
> So eventually, the soft power worked, and is still working on my
> 712/60 even with the latest kernel. Please note that I build the
> kernels myself, I never use prebuilt ones (unless for installing ;) ).
> You should find my working .config as an attachment
> (http://lists.parisc-linux.org/hypermail/parisc-linux/att-8454/02-.config).
> You can use this one, or do a diff with your .config to see what
> you're missing.

Ahhh, thanks.  Now I just need to get one of the parisc boxen back from
the dark side ;)

-- 
Michael Wood <mwood@its.uct.ac.za>


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Hello,
i try to boot from cdrom but i  have the above messages:

.......
Command line for kernel: 'ramdisk_size=8192 roo=/dev/ram console=tty0
sti=8/12
sti_font=VGA8x16 TERM=linux pa;o_kernel=0/vmlinux32'
Selevted kernel: /vmlinux32 from partition 0
Selected ramdisk: /ramdisk from partition 0
ELF32 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 2024492 mediaptr 0x1000
Segment 1 load 002f0000 size 299320 mediaptr 0x1f0000
Segment 2 load 0033c000 size 401408 mediaptr 0x23a000
Segment 3 load 003a 0000 size 32768 mediaptr 0x29c000
Segment 4 load 003c90f8 size 102032 mediaptr 02a40f8
Loading ramdisk 2663046 bytes @ 17d65000
Brancing to kernel entry point 0x00100000.   If this is the last
message you see, you need to switch your console. This is
a common symtom -- search the FAQ and mailing list at parisk-linux.org.


--------------
At this point the system is not responding .... qhat i can do ?

If i exexute the command "path" (at the prompt boot_line) i have a
"console path=8/12.0 ".

I try to put 8/12.0 as console but not is changed.


Sorry for my bad english, best regards

carlo
------------------------
Carlo Carlesi
Consiglio Nazionale Delle Ricerche
Istituto di Scienza e Tecnologia dell'Informazione
"Alessando Faedo"
Area della Ricerca di Pisa
Via Moruzzi, 1 (Italy)
Tel. +39 050 315 2800
carlo.carlesi@isti.cnr.it




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I understand my HP C180XP has a evc connector for
video
(It's a 3x10 pin connector.)   I was wondering where
I can order a adapter for it so I can display it on
a vga monitor.

Timothy.

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Subject: Re: [parisc-linux] EVC?
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Tim,
Here's the part number for the adapter since the cable adapter (8120-6861) is no longer available: 1253-0635.  You can find them on occasion on Ebay for about $10 or you can order it direct from HP for about $28 (www.partsurfer.hp.com).  There are some third party vendors (no affiliation with any of them) like http://www.montest.com/adapters.html -EVCM-15HDF Adapter but they want $46 bucks for it.  Never thought I would find a product that HP was charging less for direct.   There are a couple of the cable type ones for sale on Ebay right now :
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3410162217&category=11214
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3410685665&category=3759
The second is for $18 buy it now.  Looks like a pretty good deal.  So, just do a google search on the web for EVC monitor adapter and you will get a slew of hits.  I have two here at the house, but I am using both of them.....
derek
 Tim Robb <hecubus3rd@yahoo.com> wrote:I understand my HP C180XP has a evc connector for
video
(It's a 3x10 pin connector.) I was wondering where
I can order a adapter for it so I can display it on
a vga monitor.

Timothy.

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<P>Tim,
<P>Here's the part number for the adapter since the cable adapter (8120-6861) is no longer available: 1253-0635.&nbsp; You can find them on occasion on Ebay for about $10 or you can order it direct from HP for about $28 (<A href="http://www.partsurfer.hp.com">www.partsurfer.hp.com</A>).&nbsp; There are some third party vendors (no affiliation with any of them) like <A href="http://www.montest.com/adapters.html">http://www.montest.com/adapters.html</A>&nbsp;-EVCM-15HDF Adapter but they want $46 bucks for it.&nbsp; Never thought I would find a product that HP was charging less for direct.&nbsp;<STRONG>&nbsp; </STRONG>There are a couple of the cable type ones for sale on Ebay right now&nbsp;:
<P><A href="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;item=3410162217&amp;category=11214">http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;item=3410162217&amp;category=11214</A>
<P><A href="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;item=3410685665&amp;category=3759">http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;item=3410685665&amp;category=3759</A>
<P>The second is for $18 buy it now.&nbsp; Looks like a pretty good deal.&nbsp; So, just do a google search on the web for EVC monitor adapter and you will get a slew of hits.&nbsp; I have two here at the house, but I am using both of them.....
<P>derek
<P>&nbsp;<B><I>Tim Robb &lt;hecubus3rd@yahoo.com&gt;</I></B> wrote:
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">I understand my HP C180XP has a evc connector for<BR>video<BR>(It's a 3x10 pin connector.) I was wondering where<BR>I can order a adapter for it so I can display it on<BR>a vga monitor.<BR><BR>Timothy.<BR><BR>__________________________________________________<BR>Do you Yahoo!?<BR>Yahoo! Tax Center - File online, calculators, forms, and more<BR>http://tax.yahoo.com<BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
<a href="http://us.rd.yahoo.com/finance/mailsig/*http://tax.yahoo.com">Yahoo! Tax Center</a> - File online, calculators, forms, and more
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John,

> I can't answer that.  Presumably, HP funded the development.  Possibly,
> they were considering using the GNU linker but then decided to go with
> a different port.  I do most of my 64-bit testing now with the HPUX
> linker.  There were some rough edges in using the HP linker with GCC
> a few months ago but these have been resolved.

I get random email from people who've seen my libc-alpha postings, and
they want to know how to fix their busted gcc (hppa2.0w) + HPUX linker
compiles... looks like floating point loads and stores with bad 
relocations (the reason we disable fpregs in the rtld code for glibc).

> The HP linker is not compliant with the sysv ELF ABI in its handling
> of weak symbols.  Undefined weak symbols are supposed to resolve
> to a value of 0, and the linker is not supposed to search archive
> libraries for undefined weaks.  I tried hacking GNU ld to see if
> this could be fixed but this isn't possible since the dynamic loader
> has the same behavior.  Basically, weak symbols appear to behave
> like secondary definition symbols with the SOM runtime.  The lack
> of proper weak support impacts GCC thread support.

Ick! Okay, I see why the initial intent to transition toolchains was
made. Though it still probably kicks our arse in terms of performance.

> I presume you are talking about the implementation for lazy linking.
> I know the ia64 implementation of function descriptors differs from
> what is done for the 32-bit hppa ports.

See Lu's patch at:
http://sources.redhat.com/ml/libc-alpha/2003-04/msg00048.html

It's a unification effort to try get arches that use func. desc. onto
the same page... hopefully lockless lookups and lazy linking :)
 
> Ok.  I should note that the current 64-bit GNU ld doesn't know how
> to do a true static link.

How so? -static and -nostdlib and add all the bits yourself?
 
> I certainly agree with that plan.  64-bit code is always going to
> be slower than 32-bit code, so it shouldn't be used unless really
> needed.

It would still be a nice treat to get more testing on the 64-bit
compiler, and be able to run bigger apps on the bigger PARISC boxes once
they become available :)

Though, yes, the current plan is, without fail, in the order I feel like
fixing them today:
- make -k check passes
- function descriptor fixes
- TLS support
- Static 64-bit userspace

c.



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> I get random email from people who've seen my libc-alpha postings, and
> they want to know how to fix their busted gcc (hppa2.0w) + HPUX linker
> compiles... looks like floating point loads and stores with bad 
> relocations (the reason we disable fpregs in the rtld code for glibc).

This sounds like a configuration mixup but I would have to see
a real bug report to be sure.  Regarding disabling fpregs, this
might not be a good idea.  Integer multiplication uses the xmpyu
instruction.  There is millicode support for 32-bit multiplication
but not for 64-bit multiplication.  On the 64-bit port, loop
unrolling can cause a multiply instruction to emitted after
virtual registers are instantiated.  If fpregs are disabled,
the multiply requires a libcall.  Emitting a libcall, requires
setting the arg pointer using the virtual outgoing args register.
There is a small chance that we might not have reserved enough
space for the outgoing arguments when this is done after virtual
register instantiation.  You need -nostdlib when linking as
various functions in libgcc uses the xmpyu instruction.

> How so? -static and -nostdlib and add all the bits yourself?

No.  The dynamic loader is still required to resolve some special
symbols.  I also think the file format is not quite right for
a static executable.  I'm sure that it would be possible to generate
a truly static binary but I'm not sure how much work is involved.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> This sounds like a configuration mixup but I would have to see
> a real bug report to be sure.  Regarding disabling fpregs, this
> might not be a good idea.  

It's currently the only solution for getting the rtld code working, since
the floating point code was trying to load a non-existant linkage table pointer...

> Integer multiplication uses the xmpyu
> instruction.  There is millicode support for 32-bit multiplication
> but not for 64-bit multiplication.  On the 64-bit port, loop
> unrolling can cause a multiply instruction to emitted after
> virtual registers are instantiated.  If fpregs are disabled,
> the multiply requires a libcall.  Emitting a libcall, requires
> setting the arg pointer using the virtual outgoing args register.
> There is a small chance that we might not have reserved enough
> space for the outgoing arguments when this is done after virtual
> register instantiation.  You need -nostdlib when linking as
> various functions in libgcc uses the xmpyu instruction.

I'll enable it again for the 64-bit static port and see what happens :)

> > How so? -static and -nostdlib and add all the bits yourself?
> 
> No.  The dynamic loader is still required to resolve some special
> symbols.  I also think the file format is not quite right for
> a static executable.  I'm sure that it would be possible to generate
> a truly static binary but I'm not sure how much work is involved.

Special symbols?

c.



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> > No.  The dynamic loader is still required to resolve some special
> > symbols.  I also think the file format is not quite right for
> > a static executable.  I'm sure that it would be possible to generate
> > a truly static binary but I'm not sure how much work is involved.
> 
> Special symbols?

See chapter 6 in PA-RISC 64-Bit Runtime Architecture Supplement.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> See chapter 6 in PA-RISC 64-Bit Runtime Architecture Supplement.

Stack unwinding and exception handling?
Does this code have to call into another library? (Or just millicode).

c.


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> > See chapter 6 in PA-RISC 64-Bit Runtime Architecture Supplement.
> 
> Stack unwinding and exception handling?

No, you are looking the main document.  The supplement is available
here <http://devresource.hp.com/STK/partner/pa64supp.pdf>.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Sun, 30 Mar 2003, Stan Sieler wrote:

> (Note: if anyone has a Tadpole/RDI PrecisionBook manual/documentation-set,
> I'd be real interested in asking them a couple of questions!)

The only information I found on the web:

(www.tadpole.com -> search "precisionbook"):

http://hw.tadpole.com/html/support/legacy/unsupported/precisionbook/specification.html


(www.google.com -> "precisionbook 19 volts" -> google cache):

http://216.239.57.100/search?q=cache:96ITX9tXtXkC:hw.tadpole.com/pdf/support/legacy/supported/precisionbook/whitepaper.pdf+precisionbook+19+volts&hl=en&ie=UTF-8
http://216.239.57.100/search?q=cache:X0CgrLFxb9IC:hw.tadpole.com/print/html/products/legacy/supported/precisionbook/whitepapers/online.html+precisionbook+19+volts&hl=en&ie=UTF-8



I should get my precisionbook next week (hopefully); it is not mentioned
in the ebay offer whether documentation/manuals are shipped it - I'll let
you know if this is the case.


greeting max




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Hi everyone, (I'm new to the list)


Today my mates and I went to pick up our new *ahem* 'toy'
http://www.smartelectronix.com/~bdejong/a_new_toy/

HP9000 D270/2 + 512Mb RAM + 8 x 9-gig & 8 x 4Gig + UPS + ...
No graphics out, only a serial terminal output.
We've got it up and running and are trying to install Debian
(Woody) on it.

Everything works just fine, but when the semi-graphical installer
kicks in, we -obviously- get large pieces of garbage on the terminal.

Is there a way to set the debian installer to use simple-ascii only 
without colors/...? Or is there a better terminal program we can use
that can display colors/.. better? Selecting things in the installer
is pretty much hit and miss too.

Or, alternatively, is there a (simple) way to get some kind of graphics
card + monitor for our D270?


Thanks a lot,


 - bram

-- 
http://www.smartelectronix.com
http://www.musicdsp.org
http://www.ghentsessions.be
msn: the_etcher@hotmail.com
tel: +32 (0) 486 15 77 68


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On Sun, Apr 06, 2003 at 01:36:12PM +0200, Smartelectronix - Bram wrote:
> Hi everyone, (I'm new to the list)
> 
> 
> Today my mates and I went to pick up our new *ahem* 'toy'
> http://www.smartelectronix.com/~bdejong/a_new_toy/
> 
> HP9000 D270/2 + 512Mb RAM + 8 x 9-gig & 8 x 4Gig + UPS + ...
> No graphics out, only a serial terminal output.
> We've got it up and running and are trying to install Debian
> (Woody) on it.
> 
> Everything works just fine, but when the semi-graphical installer
> kicks in, we -obviously- get large pieces of garbage on the terminal.
> 
> Is there a way to set the debian installer to use simple-ascii only 
> without colors/...? Or is there a better terminal program we can use
> that can display colors/.. better? Selecting things in the installer
> is pretty much hit and miss too.

You don't say what terminal emulator you are trying to use.  Many people
use minicom on an x86 linux host without problems.

You can't stop the installer using features such as cursor addressing to
paint the screen.

Richard



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Re:

> (www.google.com -> "precisionbook 19 volts" -> google cache):

try also:

   http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=site%3Ahw.tadpole.com++precisionbook&btnG=Google+Search

For most of the links found by the above, you'll have to click on "Cache" to get
the doc, or for the PDF ones, the "view as HTML".

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com


From - Thu Nov 08 21:27:26 2018
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From: Alexander Gabert <pappy@nikita.ath.cx>
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Subject: [parisc-linux] grsecurity 199e on 2420pa32
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fyi

bye,

Alex

----
this weekend i succeeded in setting up my first debian-hppa box with a
customized parisc-linux.org kernel with the grsecurity 1.9.9e patch.

with the help of Brad Spengler it was possible to fit his patch to the
latest parisc-linux 2.4.20 kernel and set up a demo machine.

the patches are at http://nikita.ath.cx/users/pappy/grsec

i also provided a compiled kernel (without module support) for a 712 and
a config file for grsec for evaluational purposes.

please feel free to follow me up and ask questions about this.
the box is currently running and the 2 minor issues with PAGE EXEC
should be resolved in the near future.

i am looking forward to 2.0 where grsec will come up with role-based
behaviour and full distinction support for remote/local processes via
ip-based access control lists.

as far as i know, the grsec functionality is the first project to
effectively harden the linux kernel for hp/9000 machines.

www.grsecurity.net has details about the functionality provided by
Brad's team.

a comparison to the commercial HP/9000 praesidium IDS from HP would be
welcome.

have a nice day,


Alex
-- 
pub  1024/05E1A80C 2001/12/16 Alexander Gabert (http://nikita.ath.cx) <pappy@nikita.ath.cx>
          Key fingerprint =  2D 84 B0 CB F5 67 8A 22  8D 37 6E 6B 8A 3B 7F D6  05 E1 A8 0C


-- 
To UNSUBSCRIBE, email to debian-hppa-request@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org


----- End forwarded message -----

-- 
"... an experienced, industrious, ambitious, and often quite often
picturesque liar."
                -- Mark Twain

pub  1024/05E1A80C 2001/12/16 Alexander Gabert (http://nikita.ath.cx) <pappy@nikita.ath.cx>
          Key fingerprint =  2D 84 B0 CB F5 67 8A 22  8D 37 6E 6B 8A 3B 7F D6  05 E1 A8 0C


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From: "Smartelectronix - Bram de Jong" <bram@smartelectronix.com>
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Subject: Re: [parisc-linux] Our new toy + terminal questions.....
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----- Original Message ----- 
From: "Richard Hirst" <rhirst@linuxcare.com>
> You don't say what terminal emulator you are trying to use.  Many people
> use minicom on an x86 linux host without problems.
> 
> You can't stop the installer using features such as cursor addressing to
> paint the screen.

OK, thanks for the reply, Richard,
Had some trouble subscribing to the
list but everything is fixed now!

As you suggested offlist I'll be hunting for a VT100-compatible
terminal application.
Does anyone here have a nice VT100-compatible terminal
application for windows? (needs to be windows 'cos I need
to run it on a windows laptop...)

thanks!


 - bram


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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Our new toy + terminal questions.....
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> As you suggested offlist I'll be hunting for a VT100-compatible
> terminal application.
> Does anyone here have a nice VT100-compatible terminal
> application for windows? (needs to be windows 'cos I need
> to run it on a windows laptop...)

teraterm should work.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: [parisc-linux] Still having raid issues
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Ok, still having the same Raid creation issues from last week.  The
only thing I can thing of is that my Make of the new CVS palo is
screwy.  First time outside of class that I've actually had to install
something from source so I included my make below.  What bothers me is
the error that it can't stat iplboot.  I'm assuming that the iplboot
coded isn't getting updated and that's why when I use palo to make my
disk bootable that I keep getting the old 1.0 version of palo written
to my new raid disk.  So if you guys could just let me know how I
screwed up this make (if I did of course), it would be much
appreciated.

green:/tmp# ls -a
.          .X0-lock    file87OL3i    mcop-root        ssh-XXssqJ2K
..         .X11-unix   kde-root      palo             texm9z8I9
.ICE-unix  dcopYtUfU5  ksocket-root  palo-latest.tar  texvdK3FW
green:/tmp# cd palo
green:/tmp/palo# make
cd palo && make
make[1]: Entering directory `/tmp/palo/palo'
gcc -g -O -I../include -I../lib   -c -o diskpart.o ../lib/diskpart.c
gcc -g -O -I../include -I../lib   -c -o elf64.o ../lib/elf64.c
gcc -g -O -I../include -I../lib   -c -o load.o ../lib/load.c
gcc -g -O -I../include -I../lib   -c -o paloio.o paloio.c
gcc -g -O -I../include -I../lib   -c -o elf32.o ../lib/elf32.c
sed 's/.*/"&\\n"/' < usage.txt > usage.h
gcc -g -O -I../include -I../lib   -c -o error.o error.c
gcc -g -O -I../include -I../lib   -c -o palo.o palo.c
ar rv palo.a diskpart.o elf64.o load.o paloio.o elf32.o error.o palo.o
a - diskpart.o
a - elf64.o
a - load.o
a - paloio.o
a - elf32.o
a - error.o
a - palo.o
echo "char *bld_info = \"`whoami`@`hostname` `date`\";" > build.c
gcc -g -O -I../include -I../lib -c -o build.o build.c
rm -f build.c
gcc -g -O -I../include -I../lib  -o palo palo.a build.o
gcc -g -O -I../include -I../lib   -c -o mkbootable.o mkbootable.c
gcc -g -O -I../include -I../lib  -o mkbootable mkbootable.o elf64.o
load.o paloio.o elf32.o error.o
make[1]: Leaving directory `/tmp/palo/palo'
green:/tmp/palo# make  DESTDIR=/ install
cd palo && make
make[1]: Entering directory `/tmp/palo/palo'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/tmp/palo/palo'
gzip -9 < palo.8 > palo.8.gz
gzip -9 < debian/changelog > changelog.gz
install -o root -g root -d //usr/share/doc/palo \
                //etc //sbin \
                //usr/share/palo \
                //usr/share/man/man8
install -o root -g root -m644 palo.conf //usr/share/doc/palo
install -o root -g root palo/palo //sbin
install -o root -g root -m444 iplboot //usr/share/palo
install: cannot stat `iplboot': No such file or directory
make: *** [install] Error 1
green:/tmp/palo# palo -? | grep version
palo version 1.2 root@green Mon Apr  7 08:38:10 CDT 2003

Thanks,
derek


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Still having raid issues
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On Mon, Apr 07, 2003 at 07:43:51AM -0700, Derek Engelhaupt wrote:
> Ok, still having the same Raid creation issues from last week.  The
> only thing I can thing of is that my Make of the new CVS palo is
> screwy.  First time outside of class that I've actually had to install
> something from source so I included my make below.  What bothers me is
> the error that it can't stat iplboot.  I'm assuming that the iplboot

iplboot is only built if you compile on parisc, iirc.  The debian source
debian/pool/main/p/palo/palo_1.2.tar.gz contains iplboot, and there are
i386 palo debs for 1.2 in the archive too, if that's what you want.

Richard



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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] New dump driver patche.
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> For who  want it, I've prepared a new patch for the dump driver.
> What's new:
> -can dump only used pages.
> -fully support multi volume dump.
> -can create dump in format image for use with p4 tools.
> 
> Bug correction:
> -missed pages when writing dump header.
> 
> I would be happy to send to everyone who want it.

is this against 2.4.20 or 2.5? can we post it on ftp.parisc-linux.org?

i'm very interested in this :)

thanks
randolph


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: RE: [parisc-linux] New dump driver patche.
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Hi Bruno,

>
>    Hi
>For who  want it, I've prepared a new patch for the dump driver.
>What's new:
>-can dump only used pages.
>-fully support multi volume dump.
>-can create dump in format image for use with p4 tools.
>
>Bug correction:
>-missed pages when writing dump header.
>
>I would be happy to send to everyone who want it.
>
>    Cheers.
>
Thanks in advance, you know how much am I interested of your progress.

Do you remember last test failled because of an interrupt problem?

I would try again (and go ahead :)

Joel


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Subject: Re: [parisc-linux] New dump driver patche.
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Bruno,

>
>
>    Hi.
>About the interrupt problem, I spend lots of time to resolv this.
>This has been solved by using PDC call in order to do push directly
>on the disks by using low level function.
>
>    Cheers.
>
Very good news, I am now much more impatient to test it again.

J

---------------------------------
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> -----Original Message-----
> From: bruno_vidal@hp.com [mailto:bruno_vidal@hp.com]
> 
> Joel Soete wrote:
> 
> > I had another question: this system has 2Gb of RAM and my 
> boot disk is of
> > 9Gb , so my question is: may I use any swap as dump device 
> over the famous
> > 2 first Gb of the disk
> 
> Yes, you can use any swap device, the limitation of the 2Gb 
> is coming from
> the capabilities of the scsi card itself, and on any "last" 
> system the PDC is
> able to acces over 2Gb. This limitation is only on old 
> workstation and server,
> like 712/K (not all scsi card)....I need to add this checking 
> when configuring
> the crash area. I've already start to add this, but it is not 
> yet fully tested, mainly
> because it is only for old system, A/N/L don't have this limitation.
> 
> > (or is it possible to pass a parameter to the kernel
> > to put this swap-dump on another disk).
> 
> Sorry, not yet, I didn't look yet how to retrieve option
> from the command line. But it is in my todo list to add
> "early dump" feature.


Is there a need for swap/dump-space, like on HP-UX? or can PA-Linux run
without any swap and hence without any dump area like intel-linux? Or does
PA-Linux need swapspace like VAX/VMS needs it?


CBee, just a list follower that hopes to find time to put live in his
9000/712/80.

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<TITLE>RE: [parisc-linux] New dump driver patche.</TITLE>
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<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: bruno_vidal@hp.com [<A =
HREF=3D"mailto:bruno_vidal@hp.com">mailto:bruno_vidal@hp.com</A>]</FONT>=

<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Joel Soete wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; I had another question: this system has =
2Gb of RAM and my </FONT>
<BR><FONT SIZE=3D2>&gt; boot disk is of</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 9Gb , so my question is: may I use any =
swap as dump device </FONT>
<BR><FONT SIZE=3D2>&gt; over the famous</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 2 first Gb of the disk</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Yes, you can use any swap device, the =
limitation of the 2Gb </FONT>
<BR><FONT SIZE=3D2>&gt; is coming from</FONT>
<BR><FONT SIZE=3D2>&gt; the capabilities of the scsi card itself, and =
on any &quot;last&quot; </FONT>
<BR><FONT SIZE=3D2>&gt; system the PDC is</FONT>
<BR><FONT SIZE=3D2>&gt; able to acces over 2Gb. This limitation is only =
on old </FONT>
<BR><FONT SIZE=3D2>&gt; workstation and server,</FONT>
<BR><FONT SIZE=3D2>&gt; like 712/K (not all scsi card)....I need to add =
this checking </FONT>
<BR><FONT SIZE=3D2>&gt; when configuring</FONT>
<BR><FONT SIZE=3D2>&gt; the crash area. I've already start to add this, =
but it is not </FONT>
<BR><FONT SIZE=3D2>&gt; yet fully tested, mainly</FONT>
<BR><FONT SIZE=3D2>&gt; because it is only for old system, A/N/L don't =
have this limitation.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; (or is it possible to pass a parameter to =
the kernel</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; to put this swap-dump on another =
disk).</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Sorry, not yet, I didn't look yet how to =
retrieve option</FONT>
<BR><FONT SIZE=3D2>&gt; from the command line. But it is in my todo =
list to add</FONT>
<BR><FONT SIZE=3D2>&gt; &quot;early dump&quot; feature.</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Is there a need for swap/dump-space, like on HP-UX? =
or can PA-Linux run without any swap and hence without any dump area =
like intel-linux? Or does PA-Linux need swapspace like VAX/VMS needs =
it?</FONT></P>
<BR>

<P><FONT SIZE=3D2>CBee, just a list follower that hopes to find time to =
put live in his 9000/712/80.</FONT>
</P>

</BODY>
</HTML>
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] New dump driver patche.
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> Joel asked for something interresting, does someone know how I can retrieve an option
> passed to the kernel ? I never try it ? In which driver I need to look at ? If I can
> add some option, I'll be able for example to do an early dump in case
> of crash before multi user, and then before dump initialisation.

look up the MODULE_PARM() macro. It's used in many drivers.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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With Bruno's permission I've placed his dump driver and crashtools stuff
on ftp://ftp.parisc-linux.org/patches/

The files are:
2679a448460c9be8260cc937ddd52ccc  crashtools.tar.gz
044c09a53f3b6113621d539bc297ea9f  dump_modules-2.4.20-pa32.patch.gz

Bruno gives the following warning:
"But I think that a warning must be printed, because it use low level
function for writing on disk, it is better to use free disk. I've tested
it, but it is still possible to still have bugs. I've take care to ensure
that I'm not writing anywhere, but it is still not doing any test
to know if it is a swap partition or a file system. In case of misconfiguration
it is still possible to override a file system."

ymmv :)
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: grundler@dsl2.external.hp.com (Grant Grundler)
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On Tue, Apr 08, 2003 at 02:44:30PM +0200, bruno_vidal@hp.com wrote:
>     Hi
> Joel asked for something interresting, does someone know how I can retrieve
> an option passed to the kernel?

I think Randloph is right, MODULE_PARAM() should be sufficient.


But in case it's not, arch/parisc/kernel/setup.c:
	void __init start_parisc(unsigned arg0, unsigned arg1,

		arg1 is the command_line.

	void __init setup_arch(char **cmdline_p)

		cmdlinux_p is a pointer to "saved_command_line".
		a copy of the original.


An example is in kernel/printk.c:__setup("console=", console_setup);


hth,
grant


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hello

another question:

can you tell me the exact difference between:
www.kernel.org - linux-2.4.20
www.parisc-linux.org - parisc-linux-kernel-2.4.20-pa32

if there is no technical reason in keeping those kernel devels apart,
why is it done?

it is important for me to get a working mainstream vanilla kernel.org.
i heard that this kernel does not even boot...

thank you,


Alex

-- 
"... an experienced, industrious, ambitious, and often quite often
picturesque liar."
                -- Mark Twain

pub  1024/05E1A80C 2001/12/16 Alexander Gabert (http://nikita.ath.cx) <pappy@nikita.ath.cx>
          Key fingerprint =  2D 84 B0 CB F5 67 8A 22  8D 37 6E 6B 8A 3B 7F D6  05 E1 A8 0C


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On Tue, Apr 08, 2003 at 06:53:06PM +0200, Alexander Gabert wrote:
> can you tell me the exact difference between:
> www.kernel.org - linux-2.4.20
> www.parisc-linux.org - parisc-linux-kernel-2.4.20-pa32

a huge patch.

> if there is no technical reason in keeping those kernel devels apart,
> why is it done?

because they're serving different needs.

> it is important for me to get a working mainstream vanilla kernel.org.
> i heard that this kernel does not even boot...

it doesn't even compile.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Tue, Apr 08, 2003 at 07:06:12PM +0200, Alexander Gabert wrote:
> i am asking because of www.grsecurity.net
> 
> i am tired defeating hunks they are putting in because they
> work in arch/parisc on the vanilla kernel.org kernel.
> 
> can't you talk to them and convince them to use "our" parisc-linux image
> for the grsecurity parisc patches in the future?

perhaps you should talk to them.  tell them to work against the patches
in http://www.kernel.org/linux/kernel/ports/parisc/v2.4/

> if it would only be a matter of months when both kernels merge, it would
> not be necessary.
> but i don`t want to spend my time messing with patches when i can do
> better things ...

bits and pieces are being merged from the parisc tree into marcelo's tree,
but it's just not worth fighting to get this stuff merged.  we're mostly
merged for 2.5 and i'd rather spend my time working on that.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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i am asking because of www.grsecurity.net

i am tired defeating hunks they are putting in because they
work in arch/parisc on the vanilla kernel.org kernel.

can't you talk to them and convince them to use "our" parisc-linux image
for the grsecurity parisc patches in the future?

the PaX pageexec folks are also hanging in there...

it would be very good to have a working security hardening patch for
parisc-linux.  at least one.

if it would only be a matter of months when both kernels merge, it would
not be necessary.
but i don`t want to spend my time messing with patches when i can do
better things ...

thank you,

bye,


Alex

On Tue, Apr 08, 2003 at 05:58:25PM +0100, Matthew Wilcox wrote:
> On Tue, Apr 08, 2003 at 06:53:06PM +0200, Alexander Gabert wrote:
> > can you tell me the exact difference between:
> > www.kernel.org - linux-2.4.20
> > www.parisc-linux.org - parisc-linux-kernel-2.4.20-pa32
> 
> a huge patch.
> 
> > if there is no technical reason in keeping those kernel devels apart,
> > why is it done?
> 
> because they're serving different needs.
> 
> > it is important for me to get a working mainstream vanilla kernel.org.
> > i heard that this kernel does not even boot...
> 
> it doesn't even compile.
> 
> -- 
> "It's not Hollywood.  War is real, war is primarily not about defeat or
> victory, it is about death.  I've seen thousands and thousands of dead bodies.
> Do you think I want to have an academic debate on this subject?" -- Robert Fisk

-- 
"... an experienced, industrious, ambitious, and often quite often
picturesque liar."
                -- Mark Twain

pub  1024/05E1A80C 2001/12/16 Alexander Gabert (http://nikita.ath.cx) <pappy@nikita.ath.cx>
          Key fingerprint =  2D 84 B0 CB F5 67 8A 22  8D 37 6E 6B 8A 3B 7F D6  05 E1 A8 0C


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On Tue, Apr 08, 2003 at 06:08:39PM +0100, Matthew Wilcox wrote:
> bits and pieces are being merged from the parisc tree into marcelo's tree,
> but it's just not worth fighting to get this stuff merged.

If anyone is interested in "fighting" to merge the outstanding
parisc linux changes, I can help a bit. I just don't have as much time
these days...hopefully more this summer.

To willy's credit, he's attempted to merge 2.4 parisc changes upstream
at least twice but was torpedo'd both times.

> we're mostly
> merged for 2.5 and i'd rather spend my time working on that.

me too - I'd rather see you working on something you care about.
I'm very happy to see you (and several others) taking good care of 2.5.
And I think it's a bit much for anyone to do both - that's mostly why I
*haven't* been doing much with 2.5.

thanks,
grant


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grundler@dsl2.external.hp.com (Grant Grundler) schrieb am 09.04.03 07:50:28:  
> me too - I'd rather see you working on something you care about.  
> I'm very happy to see you (and several others) taking good care of 2.5.  
> And I think it's a bit much for anyone to do both - that's mostly why I  
> *haven't* been doing much with 2.5.  
  
Speaking of 2.5, I now have a running kernel 2.5.66-pa2 compiled with gcc version 3.3  
20030226 (prerelease). To be able to boot, I had to remove EISA support. There are some  
minor flaws like  
  
process `host' is using obsolete setsockopt SO_BSDCOMPAT  
  
lines in dmesg, but the system is up and running for 5 days now. I'll attach the small  
diff with signal casts, that was necessary to run the kernel. 
  
Berthold  
______________________________________________________________________________
UNICEF bittet um Spenden fur die Kinder im Irak! Hier online an
UNICEF spenden: https://spenden.web.de/unicef/special/?mc=021101
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--STEFAN3e93cd963d63--




From - Thu Nov 08 21:27:27 2018
X-Mozilla-Status: 0011
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: "Alexander Gabert" <pappy@nikita.ath.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] parisc-linux.org kernel
Date: Wed, 9 Apr 2003 09:54:36 +0200 (CEST)
Lines: 75
Approved: news@gmane.org
Message-ID: <52352.145.253.137.30.1049874876.squirrel@nikita.ath.cx>
References: <20030408165306.GA15433@nikita.ath.cx>
        <20030408165825.GB23430@parcelfarce.linux.theplanet.co.uk>
        <20030408170612.GA15497@nikita.ath.cx>
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hello from cold dark wet germany,


okay, after getting all the people together on one "desk", now here is the
essential question to Brad and his team:
when will we have a 2.5.* Patch for grsecurity?


background:
Alan Cox and Matthew Wilcox wouldn`t mind if someone tries to merge both
2.4.*.
but i don`t mind if it takes 2 months or more until we have a kernel.org
2.5 patch that
a) the grsec patch applies without hunks on unified 2.5 parisc source
b) parisc-linux.org is then mainstreamed in 2.5 and will discontinue
"split development"c) parisc-linux kernel _boots_ and _works_ and is _continued_ to be
developed in _MAINSTREAM_ not in parisc-linux.org CVS
i want that to happen anyway.  not just for grsec patches.
it is a sad joke that parisc-linux.org kernels are good and the kernel.org
parisc source is just a silly excuse for not having the parisc-linux.org
sources melt in.  sorry for that.
Grant Grundler said:
> On Tue, Apr 08, 2003 at 06:08:39PM +0100, Matthew Wilcox wrote:
>> bits and pieces are being merged from the parisc tree into marcelo's
>> tree, but it's just not worth fighting to get this stuff merged.

right, in this stadium i can "oversee" the necessary patches:

i strip the nonparisc, multiplatform support away with a perl script,
fiddle with about 3-4 hunks that have to be taken out because they already
exist in parisc source (for example latest ptrace kernel exploit), another
6-10 "look at it and try to intelligently put it into the slightly
different parisc source" and the rest is "make up" like double insertions,
typos and the like :-)
> If anyone is interested in "fighting" to merge the outstanding
> parisc linux changes, I can help a bit. I just don't have as much time
> these days...hopefully more this summer.

okay, i get you.

> To willy's credit, he's attempted to merge 2.4 parisc changes upstream
> at least twice but was torpedo'd both times.

i don`t want to know ;-)

>> we're mostly
>> merged for 2.5 and i'd rather spend my time working on that.

okay, this basically means to wait for a 2.5.* grsec patch and in the
meantime continue hacking in the grsec patches by hand, which is just what
i would prefer as the way to go for the next months.
> me too - I'd rather see you working on something you care about.
> I'm very happy to see you (and several others) taking good care of 2.5.
> And I think it's a bit much for anyone to do both - that's mostly why I
> *haven't* been doing much with 2.5.
>
> thanks,
> grant

with the help of the PaX team, yesterday i managed to get the 199f patch
going on my 712, with all GRKERNSEC* options enabled but just a little
PAGEEXEC "brute disabled routine" in binfmt_elf.c that inverses the
behaviour of chpax -p, i will get into that later today when i come home.
http://nikita.ath.cx/users/pappy/grsec/199f/parisc-linux-2.4.20-pa32-grsecurity-1.9.9f-parisc-only.patch
thanks for your support and that you are dealing with this issue so
friendly and open minded.

bye,


Alex





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On Wed, Apr 09, 2003 at 09:54:36AM +0200, Alexander Gabert wrote:
> background:
> b) parisc-linux.org is then mainstreamed in 2.5 and will discontinue
> "split development"c) parisc-linux kernel _boots_ and _works_ and is _continued_ to be
> developed in _MAINSTREAM_ not in parisc-linux.org CVS
> i want that to happen anyway.  not just for grsec patches.
> it is a sad joke that parisc-linux.org kernels are good and the kernel.org
> parisc source is just a silly excuse for not having the parisc-linux.org
> sources melt in.  sorry for that.

No - you don't understand the roles of the various trees.

The CVS on parisc-linux.org will *always* be authoritative tree
for parisc-linux. It should be considered a "developement" branch
for kernel.org. This is true for nearly every architecture
except i386 (and alpha?) which are maintained by issueing
a patch against kernel.org.


> right, in this stadium i can "oversee" the necessary patches:
> 
> i strip the nonparisc, multiplatform support away with a perl script,
> fiddle with about 3-4 hunks that have to be taken out because they already
> exist in parisc source (for example latest ptrace kernel exploit), another
> 6-10 "look at it and try to intelligently put it into the slightly
> different parisc source" and the rest is "make up" like double insertions,
> typos and the like :-)

Oh cool - so it's not as bad as I thought...can you run
diffstat on the various "hunks" you've got?

> >> we're mostly
> >> merged for 2.5 and i'd rather spend my time working on that.
> 
> okay, this basically means to wait for a 2.5.* grsec patch and in the
> meantime continue hacking in the grsec patches by hand, which is just what

You hopefully won't have nearly the same problems as with 2.4.
(grsec team working on stale arch/parisc code)

...
> with the help of the PaX team, yesterday i managed to get the 199f patch
> going on my 712, with all GRKERNSEC* options enabled but just a little
> PAGEEXEC "brute disabled routine" in binfmt_elf.c that inverses the
> behaviour of chpax -p, i will get into that later today when i come home.
> http://nikita.ath.cx/users/pappy/grsec/199f/parisc-linux-2.4.20-pa32-grsecurity-1.9.9f-parisc-only.patch

very cool.

> thanks for your support and that you are dealing with this issue so
> friendly and open minded.

thanks too,
grant


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> okay, after getting all the people together on one "desk", now here is the
> essential question to Brad and his team:
> when will we have a 2.5.* Patch for grsecurity?

i can speak for the PaX part only, and the answer is that "i don't know".
personally, i'll be interested in porting PaX to 2.6 when it's actually
out and working stable (enough). but that's not the only limiting factor
in our case, the several big changes to the linux VM make it absolutely
not trivial to port PaX (huge page support, rmap, accounting, non-linear
mappings, UML, etc). if you really need a timeframe, i'd say maybe in 6
months (give or take a few) i'll look at the situation again.

> > To willy's credit, he's attempted to merge 2.4 parisc changes upstream
> > at least twice but was torpedo'd both times.
> 
> i don`t want to know ;-)

actually, i'd like to (feel free to answer off-list), since for all the
other archs grsec/PaX runs on we could compile a working kernel from the
vanilla tree - it just seems a mystery why parisc is an exception (not
blaming anyone, just would like to see it more clear).


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On Wed, Apr 09, 2003 at 07:23:15PM +0200, pageexec@freemail.hu wrote:
> actually, i'd like to (feel free to answer off-list), since for all the
> other archs grsec/PaX runs on we could compile a working kernel from the
> vanilla tree - it just seems a mystery why parisc is an exception (not
> blaming anyone, just would like to see it more clear).

perhaps PaX doesn't support sparc32, m68k, arm, mips, mips64, ia64,
s390, s390x or x86-64 since i know all those architectures have patches
on top of the kernel.org tree.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Warning.  If you reply to this message you get some arsehole reply from
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bunch of pricks who can't even run a mailing list.

On Wed, Apr 09, 2003 at 07:23:15PM +0200, pageexec@freemail.hu wrote:


-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
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Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> perhaps PaX doesn't support sparc32, m68k, arm, mips, mips64, ia64,
> s390, s390x or x86-64 since i know all those architectures have patches
> on top of the kernel.org tree.

of the above sparc32 is supported right now (with the vanilla tree),
ia64 and x86-84 could be supported (if we had the hw, and i don't know
how well the vanilla tree works on them), for the rest there was either
no interest so far or it's not possible (at least the non-exec pages,
randomization is arch independent). anyway, once we get PaX on parisc
to work, i think Alex will take care of the parisc-linux.org patches
(he's already testing with that after all), so this won't be an issue.


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From: "PRINCE. PERRUCCI NNIGA" <nperrucci5@kukamail.com>
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Subject: [parisc-linux] A VERY GOOD DAY TO YOU
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Prince=2E Perrucci Nniga
Tel=3A 44-07956183438
Email=3A nperrucci5=40caramail=2Ecom

ATTN=3ADIRECTOR=2FC=2EE=2EO
I got your E-mail address and=2Cother details from your country's trade journal=2EI am Mr=2EPerrucci Nniga=2Cfrom the republic of Angola=2EMy father was the personal Assistant to the Exterior Affairs Minister in the Government of the Angolan leader JONAS SAVIMBI=2EAt the mid term of the rebellion which is still on untill this=2Cmy father thinking fast decided to send my younger brother and I out of Angola because the fate of our country was yet to be decided=2EMy brother and I left Angola for u=2Ek London with a total sum of US$18=2E6Million{eighteen Million Six Hundred Thousand United States Dollars}sealed in a diplomatic box meant for the purchase of arms from Sou th Africa=2E
On arrival to London=2Cbecause we are political asylum seekers=2Cwe were not allowed to operate a bank account=2ESo with the instruction of my father=2CI deposited the money in a security company=2Cthough I did not reveal the contents of the metal box to them=2Cbecause we wanted to be on the safe side=2EI told them that the metal box belongs to my foreign affiliate who is the beneficiary of the item=2E
Unfortunately=2Cbecause of my father's politcal position and influence he was assassinated together with my mother=2Csince then we have been looking for a reliable and trustworthy person to help us transfer this money into a foreign account overseas prior to investment in that country or any other conductive country overseas=2EBut it has to be a less tax demanding country=2Cand luckily I ran into your E-mail address and other details and decided to contact you hoping that you will
be of assistance=2Cand you will have 20% of this money and 5% will be earmarked cover expenses cotingencies=2E
And pls if you ever find it in your heart to help me=2Ccontact me by the above E-mail address a return call on the number above=2E
I look forward to your urgent response=2E
best regards=2C
Perrucci Nniga=2E




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Re:

> Prince. Perrucci Nniga
...
> be of assistance,and you will have 20% of this money and 5% will be earmarked cover expenses cotingencies.

Hey...maybe we can use this to fund the PA-RISC / Linux project!


Incompetent scammers/spammers are the worst kind.

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com


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On Wed, Apr 09, 2003 at 07:23:15PM +0200, pageexec@freemail.hu wrote:
> > > To willy's credit, he's attempted to merge 2.4 parisc changes upstream
> > > at least twice but was torpedo'd both times.
> > 
> > i don`t want to know ;-)
> 
> actually, i'd like to (feel free to answer off-list),

Once the 2.4.20-preX bk tree that willy was using as "parent"
was discarded by marcelo because of other bugs in patches.
Or marcelo wouldn't accept the patch because he had a -pre candidate
and didn't want to risk that. Just stuff like that.

> since for all the
> other archs grsec/PaX runs on we could compile a working kernel from the
> vanilla tree - it just seems a mystery why parisc is an exception (not
> blaming anyone, just would like to see it more clear).

As willy noted, parisc is not an exception. last time willy looked at
merging, the 2.4 diff was something like 2 or 3MB. I'd hope it's a bit
smaller since Alan Cox merge a bunch of stuff into his tree.
But I haven't looked if/when Marcelo picked any of that up.
For comparison, last I heard, the 2.5 diff is something like < 100KB.

grant


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> -----Original Message-----
> From: Stan Sieler [mailto:sieler@allegro.com]
> Sent: donderdag 10 april 2003 00:36
> To: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] A VERY GOOD DAY TO YOU
> 
> 
> Re:
> 
> > Prince. Perrucci Nniga
> ...
> > be of assistance,and you will have 20% of this money and 5% 
> will be earmarked cover expenses cotingencies.
> 
> Hey...maybe we can use this to fund the PA-RISC / Linux project!

I think the project first needs to be based in Nigaragua...

> 
> 
> Incompetent scammers/spammers are the worst kind.

I recently read somewhere that Nigaragua (and maybe some other coutries)
have this scam as their 3rt of 4th largest source of income...


CBee

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<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: Stan Sieler [<A =
HREF=3D"mailto:sieler@allegro.com">mailto:sieler@allegro.com</A>]</FONT>=

<BR><FONT SIZE=3D2>&gt; Sent: donderdag 10 april 2003 00:36</FONT>
<BR><FONT SIZE=3D2>&gt; To: parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>&gt; Subject: Re: [parisc-linux] A VERY GOOD DAY TO =
YOU</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Re:</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; Prince. Perrucci Nniga</FONT>
<BR><FONT SIZE=3D2>&gt; ...</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; be of assistance,and you will have 20% of =
this money and 5% </FONT>
<BR><FONT SIZE=3D2>&gt; will be earmarked cover expenses =
cotingencies.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Hey...maybe we can use this to fund the PA-RISC =
/ Linux project!</FONT>
</P>

<P><FONT SIZE=3D2>I think the project first needs to be based in =
Nigaragua...</FONT>
</P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Incompetent scammers/spammers are the worst =
kind.</FONT>
</P>

<P><FONT SIZE=3D2>I recently read somewhere that Nigaragua (and maybe =
some other coutries) have this scam as their 3rt of 4th largest source =
of income...</FONT></P>
<BR>

<P><FONT SIZE=3D2>CBee</FONT>
</P>

</BODY>
</HTML>
------_=_NextPart_001_01C2FF38.07A5E800--


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On Wed, Apr 09, 2003 at 11:50:03PM -0600, Grant Grundler wrote:
> > actually, i'd like to (feel free to answer off-list),
> 
> Once the 2.4.20-preX bk tree that willy was using as "parent"
> was discarded by marcelo because of other bugs in patches.
> Or marcelo wouldn't accept the patch because he had a -pre candidate
> and didn't want to risk that. Just stuff like that.

And other people were patching things in the parisc-specific directories
which conflicted with my patches ;-(

> As willy noted, parisc is not an exception. last time willy looked at
> merging, the 2.4 diff was something like 2 or 3MB. I'd hope it's a bit
> smaller since Alan Cox merge a bunch of stuff into his tree.
> But I haven't looked if/when Marcelo picked any of that up.
> For comparison, last I heard, the 2.5 diff is something like < 100KB.

-rw-r--r--    1 willy    willy      202871 Apr  8 20:54 parisc-2.5.diff
although most of that is:
-rw-r--r--    1 willy    willy      170361 Mar 18 18:46 parisc-hil.diff

$ zcat ../ftp/cvs/patch-2.4.20-pa32.diff.gz |wc
  91100  503494 3691507

that's not the full story since a large chunk of that's been merged into
2.4.21-pre, but i have no idea how much would be remaining.

if anyone had the time, we could track 2.4.21-pre more closely.  but it's
just not worth it.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


From - Thu Nov 08 21:27:29 2018
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Subject: [parisc-linux] 64 bits apps
Date: Thu, 10 Apr 2003 14:05:36 -0300
Organization: T&T Engenheiros Associados Ltda.
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Hi, I=92m a software engineer in Brazil, working with Linux System
Development and IPF and PA-RISC based machines.=20
I started to read this mailing list just a few weeks ago and first I=92d
like to say you guys are doing a great work in this project!=20
After study the patches you released and browsing this mailing list I
was wondering why are the issues with the use of ELF64 binary format for
the apps? Is there any problem with the use of ELF64, or you have any
project goal that doesn=92t recommend its use?
Another question I have is regarding the 64 bits development tools (for
apps) current status. What are the recommended tools to generate 64 bits
apps?
Sorry if I=92m asking some pretty obvious questions (or if you had to
answer them a hundred times!! :-))), but I wasn=92t able to find an =
answer
in the mailing list archives.
I would appreciate very much your answer for my question, because I=92m
very interested in running 64 bits apps in Linux/PA-RISC and I can even
contribute some work in this area, if my manager accepts a project
proposal I=92m currently doing.

Thanks,
Andr=E9 Magoga
SW Engineer =96 T&T





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Subject: Re: [parisc-linux] 64 bits apps
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On Thu, Apr 10, 2003 at 02:05:36PM -0300, Andr Luiz Castilhos Magoga wrote:
> Hi, Im a software engineer in Brazil, working with Linux System
> Development and IPF and PA-RISC based machines. 

Yes, your colleague asked about it here:
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-April/019668.html

and was given references.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Andrew Shugg <andrew@neep.com.au>
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Subject: Re: [parisc-linux] A VERY GOOD DAY TO YOU
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"Beerse, Corn" said:
> I recently read somewhere that Nigaragua (and maybe some other coutries)
> have this scam as their 3rt of 4th largest source of income...

I think you mean Nigeria, not Nicaragua.  =)

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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>
>Please post the diffstat results to the mailing list.
>
>You can ignore complete driver "updates" I've committed.
>Some newer drivers work better for parisc, some don't. qlogic driver
>doesn't crash but it doesn't work right either. tg3 v1.5 is an example
>where it works better than the existing version.
>
>In general, breaking up the 3.5MB diff into smaller chunks makes it
>easier for Marcelo to handle.
>
Here is the rough diffstat (still have to reverse ql driver patches, I will
try to find time this week-end :) )

 Documentation/Configure.help                      |   90 
 Makefile                                          |   16 
 arch/m68k/config.in                               |    5 
 arch/m68k/kernel/m68k_ksyms.c                     |    5 
 arch/m68k/kernel/setup.c                          |    3 
 arch/m68k/q40/config.c                            |   41 
 arch/parisc/config.in                             |    6 
 arch/parisc/debian-configs/32                     |  989 ++++
 arch/parisc/debian-configs/32-smp                 |  988 ++++
 arch/parisc/debian-configs/32-udeb                |  915 ++++
 arch/parisc/debian-configs/64                     |  977 ++++
 arch/parisc/debian-configs/64-smp                 |  976 ++++
 arch/parisc/debian-configs/64-udeb                |  865 +++
 arch/parisc/defpalo.conf                          |   21 
 arch/parisc/kernel/cache.c                        |   80 
 arch/parisc/kernel/ccio-dma.c                     |   17 
 arch/parisc/kernel/ccio-rm-dma.c                  |    2 
 arch/parisc/kernel/drivers.c                      |   51 
 arch/parisc/kernel/entry.S                        |    4 
 arch/parisc/kernel/hardware.c                     |   10 
 arch/parisc/kernel/head.S                         |    2 
 arch/parisc/kernel/ioctl32.c                      |    5 
 arch/parisc/kernel/irq.c                          |    4 
 arch/parisc/kernel/lasimap.map                    |  322 -
 arch/parisc/kernel/parisc_ksyms.c                 |   11 
 arch/parisc/kernel/pci-dma.c                      |    8 
 arch/parisc/kernel/perf.c                         |   10 
 arch/parisc/kernel/processor.c                    |    2 
 arch/parisc/kernel/sba_iommu.c                    |    2 
 arch/parisc/kernel/smp.c                          |   13 
 arch/parisc/kernel/traps.c                        |    8 
 arch/parisc/kernel/unaligned.c                    |  394 +
 arch/parisc/math-emu/dfadd.c                      |    2 
 arch/parisc/math-emu/dfcmp.c                      |    2 
 arch/parisc/math-emu/dfdiv.c                      |    2 
 arch/parisc/math-emu/dfmpy.c                      |    2 
 arch/parisc/math-emu/dfrem.c                      |    2 
 arch/parisc/math-emu/dfsqrt.c                     |    2 
 arch/parisc/math-emu/dfsub.c                      |    2 
 arch/parisc/math-emu/driver.c                     |   17 
 arch/parisc/math-emu/fcnvff.c                     |    2 
 arch/parisc/math-emu/fcnvfu.c                     |    2 
 arch/parisc/math-emu/fcnvfut.c                    |    2 
 arch/parisc/math-emu/fcnvfx.c                     |    2 
 arch/parisc/math-emu/fcnvfxt.c                    |    2 
 arch/parisc/math-emu/fcnvuf.c                     |    2 
 arch/parisc/math-emu/fcnvxf.c                     |    2 
 arch/parisc/math-emu/float.h                      |    2 
 arch/parisc/math-emu/fmpyfadd.c                   |    2 
 arch/parisc/math-emu/fpu.h                        |    2 
 arch/parisc/math-emu/fpudispatch.c                |   19 
 arch/parisc/math-emu/sfadd.c                      |    2 
 arch/parisc/math-emu/sfcmp.c                      |    2 
 arch/parisc/math-emu/sfdiv.c                      |    2 
 arch/parisc/math-emu/sfmpy.c                      |    2 
 arch/parisc/math-emu/sfrem.c                      |    2 
 arch/parisc/math-emu/sfsqrt.c                     |    2 
 arch/parisc/math-emu/sfsub.c                      |    2 
 drivers/char/Config.in                            |    3 
 drivers/char/Makefile                             |    2 
 drivers/char/pty.c                                |    4 
 drivers/char/serial.c                             |  115 
 drivers/gsc/dino.c                                |    9 
 drivers/ide/pci/ns87415.c                         |    8 
 drivers/ide/setup-pci.c                           |    2 
 drivers/net/acenic.c                              |    5 
 drivers/net/lasi_82596.c                          |    2 
 drivers/net/pcnet32.c                             |   26 
 drivers/net/tulip/eeprom.c                        |    3 
 drivers/net/tulip/media.c                         |   29 
 drivers/net/wireless/airo.c                       |    7 
 drivers/pci/quirks.c                              |    3 
 drivers/pci/setup-bus.c                           |   37 
 drivers/scsi/Config.in                            |   57 
 drivers/scsi/Makefile                             |   15 
 drivers/scsi/cpqfcTScontrol.c                     |   45 
 drivers/scsi/cpqfcTSi2c.c                         |    3 
 drivers/scsi/cpqfcTSinit.c                        |   12 
 drivers/scsi/cpqfcTSstructs.h                     |    4 
 drivers/scsi/cpqfcTSworker.c                      |    2 
 drivers/scsi/ncr53c8xx.c                          |  341 +
 drivers/scsi/qla2xxx/Config.in                    |    6 
 drivers/scsi/qla2xxx/Makefile                     |   13 
 drivers/scsi/qla2xxx/README.qla2x00               |  744 +++
 drivers/scsi/qla2xxx/SUPPORTED_KERNEL_VERSION.txt |   16 
 drivers/scsi/qla2xxx/exioct.h                     |  966 ++++
 drivers/scsi/qla2xxx/exioctln.h                   |  203 
 drivers/scsi/qla2xxx/inioct.h                     |  129 
 drivers/scsi/qla2xxx/listops.h                    |  397 +
 drivers/scsi/qla2xxx/ql2100_fw.h                  | 4866 +++++++++++++++++++++
 drivers/scsi/qla2xxx/ql2200_fw.h                  | 5314 +++++++++++++++++++++++
 drivers/scsi/qla2xxx/ql2200ip_fw.h                | 5868 +++++++++++++++++++++++++
 drivers/scsi/qla2xxx/ql2300_fw.h                  | 6215 +++++++++++++++++++++++++++
 drivers/scsi/qla2xxx/ql2300ip_fw.h                | 6885 ++++++++++++++++++++++++++++++
 drivers/scsi/qla2xxx/qla2100.c                    |   43 
 drivers/scsi/qla2xxx/qla2200.c                    |   43 
 drivers/scsi/qla2xxx/qla2300.c                    |   43 
 drivers/scsi/qla2xxx/qla2x00.c                    |16854 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 drivers/scsi/qla2xxx/qla2x00.h                    | 2795 ++++++++++++
 drivers/scsi/qla2xxx/qla2x00_ioctl.c              | 4551 +++++++++++++++++++
 drivers/scsi/qla2xxx/qla_cfg.c                    | 2608 +++++++++++
 drivers/scsi/qla2xxx/qla_cfg.h                    |  181 
 drivers/scsi/qla2xxx/qla_cfgln.c                  |  684 +++
 drivers/scsi/qla2xxx/qla_debug.h                  |  137 
 drivers/scsi/qla2xxx/qla_fo.c                     | 1358 +++++
 drivers/scsi/qla2xxx/qla_fo.cfg                   |   31 
 drivers/scsi/qla2xxx/qla_fo.h                     |   75 
 drivers/scsi/qla2xxx/qla_gbl.h                    |   99 
 drivers/scsi/qla2xxx/qla_inioct.c                 |  479 ++
 drivers/scsi/qla2xxx/qla_ip.c                     | 1781 +++++++
 drivers/scsi/qla2xxx/qla_ip.h                     |  464 ++
 drivers/scsi/qla2xxx/qla_mbx.c                    | 2600 +++++++++++
 drivers/scsi/qla2xxx/qla_mbx.h                    |   24 
 drivers/scsi/qla2xxx/qla_settings.h               |  137 
 drivers/scsi/qla2xxx/qla_vendor.c                 |  190 
 drivers/scsi/qla2xxx/qla_version.h                |   27 
 drivers/scsi/qla2xxx/qlfo.h                       |  413 +
 drivers/scsi/qla2xxx/qlfolimits.h                 |   92 
 drivers/scsi/qla2xxx/qlfoln.h                     |   76 
 drivers/scsi/qla2xxx/release.txt                  |   28 
 drivers/scsi/qla2xxx/revision.notes               |  822 +++
 drivers/scsi/sym53c8xx.c                          |   44 
 drivers/scsi/sym53c8xx_2/sym_glue.c               |   14 
 drivers/scsi/sym53c8xx_2/sym_hipd.c               |   35 
 drivers/scsi/sym53c8xx_defs.h                     |   83 
 drivers/sound/ad1889.c                            |    2 
 drivers/video/Config.in                           |   14 
 drivers/video/dummycon.c                          |   10 
 drivers/video/sstfb.c                             |  114 
 fs/Makefile                                       |    1 
 fs/binfmt_elf.c                                   |  288 -
 fs/exec.c                                         |   97 
 fs/open.c                                         |   22 
 fs/read_write.c                                   |   40 
 include/asm-generic/xor.h                         |  378 +
 include/asm-m68k/machdep.h                        |    4 
 include/asm-m68k/rtc.h                            |   50 
 include/asm-parisc/checksum.h                     |   26 
 include/asm-parisc/delay.h                        |    1 
 include/asm-parisc/hdreg.h                        |    4 
 include/asm-parisc/ide.h                          |   25 
 include/asm-parisc/ide.h-t0                       |  110 
 include/asm-parisc/ide.h-tst                      |   91 
 include/asm-parisc/ide.h.save                     |  196 
 include/asm-parisc/io.h                           |   16 
 include/asm-parisc/linux_logo.h                   | 1433 ++++++
 include/asm-parisc/pgalloc.h                      |    3 
 include/asm-parisc/spinlock_t.h                   |   38 
 include/asm-parisc/system.h                       |    4 
 include/asm-parisc/system.h.save                  |  145 
 include/asm-parisc/system_irqsave.h               |   15 
 include/asm-parisc/system_irqsave.h.Orig          |   17 
 include/asm-parisc/system_irqsave.h.save          |   17 
 include/linux/binfmts.h                           |    2 
 include/linux/fs_struct.h                         |    3 
 include/linux/init.h                              |   17 
 include/linux/ioport.h                            |    1 
 include/linux/major.h                             |    1 
 include/linux/mm.h                                |   31 
 include/linux/pci.h                               |    2 
 include/linux/rtc.h                               |   28 
 include/linux/sched.h                             |    2 
 include/linux/smp.h                               |    5 
 include/linux/sysctl.h                            |    2 
 include/linux/tcp_diag.h                          |    3 
 include/linux/tty.h                               |    2 
 init/main.c                                       |    9 
 kernel/exit.c                                     |    9 
 kernel/module.c                                   |    1 
 kernel/printk.c                                   |   11 
 kernel/signal.c                                   |   10 
 kernel/sys.c                                      |   11 
 kernel/sysctl.c                                   |   11 
 kernel/timer.c                                    |    2 
 mm/mmap.c                                         |   99 
 mm/vmscan.c                                       |    1 
 net/ipv4/ip_fragment.c                            |    2 
 net/ipv4/ip_input.c                               |    1 
 net/ipv4/proc.c                                   |    1 
 net/ipv4/udp.c                                    |    5 
 net/sunrpc/clnt.c                                 |    2 
 181 files changed, 78405 insertions(+), 1123 deletions(-)

(hmm don't remember if linux_logo is of mine dpkg install or a new one in
our tree :)

Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:18231

>
>>
>>Please post the diffstat results to the mailing list.
>>
>>You can ignore complete driver "updates" I've committed.
>>Some newer drivers work better for parisc, some don't. qlogic driver
>>doesn't crash but it doesn't work right either. tg3 v1.5 is an example
>>where it works better than the existing version.
>>
>>In general, breaking up the 3.5MB diff into smaller chunks makes it
>>easier for Marcelo to handle.
>>
>Here is the rough diffstat (still have to reverse ql driver patches, I will
>try to find time this week-end :) )
>
Forget, it is a bit quiet calm and revert following patches:
patching file drivers/scsi/Config.in
patching file drivers/scsi/Makefile
Hunk #2 succeeded at 75 with fuzz 1 (offset 3 lines).
patching file drivers/scsi/qla2xxx/Config.in
patching file drivers/scsi/qla2xxx/Makefile
patching file drivers/scsi/qla2xxx/README.qla2x00
patching file drivers/scsi/qla2xxx/SUPPORTED_KERNEL_VERSION.txt
patching file drivers/scsi/qla2xxx/exioct.h
patching file drivers/scsi/qla2xxx/exioctln.h
patching file drivers/scsi/qla2xxx/inioct.h
patching file drivers/scsi/qla2xxx/listops.h
patching file drivers/scsi/qla2xxx/ql2100_fw.h
patching file drivers/scsi/qla2xxx/ql2200_fw.h
patching file drivers/scsi/qla2xxx/ql2200ip_fw.h
patching file drivers/scsi/qla2xxx/ql2300_fw.h
patching file drivers/scsi/qla2xxx/ql2300ip_fw.h
patching file drivers/scsi/qla2xxx/qla2100.c
patching file drivers/scsi/qla2xxx/qla2200.c
patching file drivers/scsi/qla2xxx/qla2300.c
patching file drivers/scsi/qla2xxx/qla2x00.c
patching file drivers/scsi/qla2xxx/qla2x00.h
patching file drivers/scsi/qla2xxx/qla2x00_ioctl.c
patching file drivers/scsi/qla2xxx/qla_cfg.c
patching file drivers/scsi/qla2xxx/qla_cfg.h
patching file drivers/scsi/qla2xxx/qla_cfgln.c
patching file drivers/scsi/qla2xxx/qla_debug.h
patching file drivers/scsi/qla2xxx/qla_fo.c
patching file drivers/scsi/qla2xxx/qla_fo.cfg
patching file drivers/scsi/qla2xxx/qla_fo.h
patching file drivers/scsi/qla2xxx/qla_gbl.h
patching file drivers/scsi/qla2xxx/qla_inioct.c
patching file drivers/scsi/qla2xxx/qla_ip.c
patching file drivers/scsi/qla2xxx/qla_ip.h
patching file drivers/scsi/qla2xxx/qla_mbx.c
patching file drivers/scsi/qla2xxx/qla_mbx.h
patching file drivers/scsi/qla2xxx/qla_settings.h
patching file drivers/scsi/qla2xxx/qla_vendor.c
patching file drivers/scsi/qla2xxx/qla_version.h
patching file drivers/scsi/qla2xxx/qlfo.h
patching file drivers/scsi/qla2xxx/qlfolimits.h
patching file drivers/scsi/qla2xxx/qlfoln.h
patching file drivers/scsi/qla2xxx/release.txt
patching file drivers/scsi/qla2xxx/revision.notes

And so obtain the following diffstat:
 Documentation/Configure.help             |   90 +
 Makefile                                 |   16 
 arch/m68k/config.in                      |    5 
 arch/m68k/kernel/m68k_ksyms.c            |    5 
 arch/m68k/kernel/setup.c                 |    3 
 arch/m68k/q40/config.c                   |   41 
 arch/parisc/config.in                    |    6 
 arch/parisc/debian-configs/32            |  989 +++++++++++++++++++++
 arch/parisc/debian-configs/32-smp        |  988 +++++++++++++++++++++
 arch/parisc/debian-configs/32-udeb       |  915 +++++++++++++++++++
 arch/parisc/debian-configs/64            |  977 +++++++++++++++++++++
 arch/parisc/debian-configs/64-smp        |  976 +++++++++++++++++++++
 arch/parisc/debian-configs/64-udeb       |  865 ++++++++++++++++++
 arch/parisc/defpalo.conf                 |   21 
 arch/parisc/kernel/cache.c               |   80 +
 arch/parisc/kernel/ccio-dma.c            |   17 
 arch/parisc/kernel/ccio-rm-dma.c         |    2 
 arch/parisc/kernel/drivers.c             |   51 -
 arch/parisc/kernel/entry.S               |    4 
 arch/parisc/kernel/hardware.c            |   10 
 arch/parisc/kernel/head.S                |    2 
 arch/parisc/kernel/ioctl32.c             |    5 
 arch/parisc/kernel/irq.c                 |    4 
 arch/parisc/kernel/lasimap.map           |  322 ------
 arch/parisc/kernel/parisc_ksyms.c        |   11 
 arch/parisc/kernel/pci-dma.c             |    8 
 arch/parisc/kernel/perf.c                |   10 
 arch/parisc/kernel/processor.c           |    2 
 arch/parisc/kernel/sba_iommu.c           |    2 
 arch/parisc/kernel/smp.c                 |   13 
 arch/parisc/kernel/traps.c               |    8 
 arch/parisc/kernel/unaligned.c           |  394 +++++---
 arch/parisc/math-emu/dfadd.c             |    2 
 arch/parisc/math-emu/dfcmp.c             |    2 
 arch/parisc/math-emu/dfdiv.c             |    2 
 arch/parisc/math-emu/dfmpy.c             |    2 
 arch/parisc/math-emu/dfrem.c             |    2 
 arch/parisc/math-emu/dfsqrt.c            |    2 
 arch/parisc/math-emu/dfsub.c             |    2 
 arch/parisc/math-emu/driver.c            |   17 
 arch/parisc/math-emu/fcnvff.c            |    2 
 arch/parisc/math-emu/fcnvfu.c            |    2 
 arch/parisc/math-emu/fcnvfut.c           |    2 
 arch/parisc/math-emu/fcnvfx.c            |    2 
 arch/parisc/math-emu/fcnvfxt.c           |    2 
 arch/parisc/math-emu/fcnvuf.c            |    2 
 arch/parisc/math-emu/fcnvxf.c            |    2 
 arch/parisc/math-emu/float.h             |    2 
 arch/parisc/math-emu/fmpyfadd.c          |    2 
 arch/parisc/math-emu/fpu.h               |    2 
 arch/parisc/math-emu/fpudispatch.c       |   19 
 arch/parisc/math-emu/sfadd.c             |    2 
 arch/parisc/math-emu/sfcmp.c             |    2 
 arch/parisc/math-emu/sfdiv.c             |    2 
 arch/parisc/math-emu/sfmpy.c             |    2 
 arch/parisc/math-emu/sfrem.c             |    2 
 arch/parisc/math-emu/sfsqrt.c            |    2 
 arch/parisc/math-emu/sfsub.c             |    2 
 drivers/char/Config.in                   |    3 
 drivers/char/Makefile                    |    2 
 drivers/char/pty.c                       |    4 
 drivers/char/serial.c                    |  115 ++
 drivers/gsc/dino.c                       |    9 
 drivers/ide/pci/ns87415.c                |    8 
 drivers/ide/setup-pci.c                  |    2 
 drivers/net/acenic.c                     |    5 
 drivers/net/lasi_82596.c                 |    2 
 drivers/net/pcnet32.c                    |   26 
 drivers/net/tulip/eeprom.c               |    3 
 drivers/net/tulip/media.c                |   29 
 drivers/net/wireless/airo.c              |    7 
 drivers/pci/quirks.c                     |    3 
 drivers/pci/setup-bus.c                  |   37 
 drivers/scsi/Config.in                   |   53 -
 drivers/scsi/Makefile                    |    1 
 drivers/scsi/cpqfcTScontrol.c            |   45 
 drivers/scsi/cpqfcTSi2c.c                |    3 
 drivers/scsi/cpqfcTSinit.c               |   12 
 drivers/scsi/cpqfcTSstructs.h            |    4 
 drivers/scsi/cpqfcTSworker.c             |    2 
 drivers/scsi/ncr53c8xx.c                 |  341 ++++++-
 drivers/scsi/sym53c8xx.c                 |   44 
 drivers/scsi/sym53c8xx_2/sym_glue.c      |   14 
 drivers/scsi/sym53c8xx_2/sym_hipd.c      |   35 
 drivers/scsi/sym53c8xx_defs.h            |   83 +
 drivers/sound/ad1889.c                   |    2 
 drivers/video/Config.in                  |   14 
 drivers/video/dummycon.c                 |   10 
 drivers/video/sstfb.c                    |  114 +-
 fs/Makefile                              |    1 
 fs/binfmt_elf.c                          |  288 +++---
 fs/exec.c                                |   97 +-
 fs/open.c                                |   22 
 fs/read_write.c                          |   40 
 include/asm-generic/xor.h                |  378 ++++++++
 include/asm-m68k/machdep.h               |    4 
 include/asm-m68k/rtc.h                   |   50 -
 include/asm-parisc/checksum.h            |   26 
 include/asm-parisc/delay.h               |    1 
 include/asm-parisc/hdreg.h               |    4 
 include/asm-parisc/ide.h                 |   25 
 include/asm-parisc/ide.h-t0              |  110 ++
 include/asm-parisc/ide.h-tst             |   91 +
 include/asm-parisc/ide.h.save            |  196 ++++
 include/asm-parisc/io.h                  |   16 
 include/asm-parisc/linux_logo.h          | 1433 ++++++++++++++++++++++++++++++-
 include/asm-parisc/pgalloc.h             |    3 
 include/asm-parisc/spinlock_t.h          |   38 
 include/asm-parisc/system.h              |    4 
 include/asm-parisc/system.h.save         |  145 +++
 include/asm-parisc/system_irqsave.h      |   15 
 include/asm-parisc/system_irqsave.h.Orig |   17 
 include/asm-parisc/system_irqsave.h.save |   17 
 include/linux/binfmts.h                  |    2 
 include/linux/fs_struct.h                |    3 
 include/linux/init.h                     |   17 
 include/linux/ioport.h                   |    1 
 include/linux/major.h                    |    1 
 include/linux/mm.h                       |   31 
 include/linux/pci.h                      |    2 
 include/linux/rtc.h                      |   28 
 include/linux/sched.h                    |    2 
 include/linux/smp.h                      |    5 
 include/linux/sysctl.h                   |    2 
 include/linux/tcp_diag.h                 |    3 
 include/linux/tty.h                      |    2 
 init/main.c                              |    9 
 kernel/exit.c                            |    9 
 kernel/module.c                          |    1 
 kernel/printk.c                          |   11 
 kernel/signal.c                          |   10 
 kernel/sys.c                             |   11 
 kernel/sysctl.c                          |   11 
 kernel/timer.c                           |    2 
 mm/mmap.c                                |   99 +-
 mm/vmscan.c                              |    1 
 net/ipv4/ip_fragment.c                   |    2 
 net/ipv4/ip_input.c                      |    1 
 net/ipv4/proc.c                          |    1 
 net/ipv4/udp.c                           |    5 
 net/sunrpc/clnt.c                        |    2 
 141 files changed, 10130 insertions(+), 1123 deletions(-)

corresponding to a patch of about 450k ;)

J

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On Fri, Apr 11, 2003 at 07:40:32AM +0200, Joel Soete wrote:
> Here is the rough diffstat (still have to reverse ql driver patches, I will
> try to find time this week-end :) )

cool - let me add some general comments.
You might break the diff up into chunks along the lines that
I've commented on them below. You should end up with something like
15-20 patches.

>  Documentation/Configure.help                      |   90 
	I expect parisc-specific changes here.

>  Makefile                                          |   16 
	Don't submit the Makefile unless you are sure we need it.

>  arch/m68k/config.in                               |    5 
...
	Don't submit m68k - Marcello should be ahead here.

>  arch/parisc/config.in                             |    6 
...
	parisc specific (our tree is authoritative)
	Need to review for changes in Marcelo's tree.
	I expect Marcello to take the mess as-is if there
	are no conflicts.

>  drivers/char/Config.in                            |    3 
>  drivers/char/Makefile                             |    2 
>  drivers/char/pty.c                                |    4 
>  drivers/char/serial.c                             |  115 
	Diva Support? If so, that's common to parisc/ia64.

>  drivers/gsc/dino.c                                |    9 
	parisc specific.

>  drivers/ide/pci/ns87415.c                         |    8 
>  drivers/ide/setup-pci.c                           |    2 
	Suckyio support. This probably needs to go to Andre Hedrick.

>  drivers/net/acenic.c                              |    5 
	Jes Sorensen has all my changes for this driver.
	Jes, can you compare Marcello's tree with ours?
	(and please make sure Marcello gets the latest?)

>  drivers/net/lasi_82596.c                          |    2 
	parisc specific

>  drivers/net/pcnet32.c                             |   26 
	Dunno.

>  drivers/net/tulip/eeprom.c                        |    3 
>  drivers/net/tulip/media.c                         |   29 
	Jeff Garzik has blessed changes I've made here.
	I expect this to be about the PHY reset and media table changes
	for card-mode Dino (rbrad's changes).

>  drivers/net/wireless/airo.c                       |    7 
	Fixes from Lamont. He's not the maintainer but the card should
	now work under parisc-linux. He's got one running in a B180.

>  drivers/pci/quirks.c                              |    3 
	upstream changes.

>  drivers/pci/setup-bus.c                           |   37 
	I expect this is the bridge_ctl field I added using
	Russell King's patch (arm/pci maintainer). This probably
	can NOT go in as-is. If the bulk of the other changes
	go in, I'll deal with this.

>  drivers/scsi/Config.in                            |   57 
>  drivers/scsi/Makefile                             |   15 
	Added qla2xxx

>  drivers/scsi/cpqfcTScontrol.c                     |   45 
>  drivers/scsi/cpqfcTSi2c.c                         |    3 
>  drivers/scsi/cpqfcTSinit.c                        |   12 
>  drivers/scsi/cpqfcTSstructs.h                     |    4 
>  drivers/scsi/cpqfcTSworker.c                      |    2 
	These are my cleanups so one can load/unload the module 
	without crashing the system. TL chips (5100/5166) should
	work but HP XL2 HBAs do not - need more work to read the serial
	PROM and pull the GBIC info/WWW id out.  I haven't tested
	this on ia64, only parisc.

	This is an orphan'd driver.  I talked to the current maintainers
	and they just don't have time to work on it. This is the same
	group that supports cciss driver (SmartArray cards).
	I've submitted these changes about 2 months ago. 

	See http://sourceforge.net/projects/cpqfc.

>  drivers/scsi/ncr53c8xx.c                          |  341 +
	rhirst changes for zalon support?

>  drivers/scsi/qla2xxx/Config.in                    |    6 
>  drivers/scsi/qla2xxx/Makefile                     |   13 
...
	"New" driver. This is the released qla2xxx v6.0.4 from Qlogic.
	Works on ia64 (weekend of hazard testing) but not quite on parisc.
	At least it doesn't crash parisc. I have a card installed in
	an a500 if someone has time to poke at this some more.

>  drivers/scsi/sym53c8xx.c                          |   44 
>  drivers/scsi/sym53c8xx_2/sym_glue.c               |   14 
>  drivers/scsi/sym53c8xx_2/sym_hipd.c               |   35 
>  drivers/scsi/sym53c8xx_defs.h                     |   83 
	All of these sym53c8xx changes have been blessed by Gerard Roudier.
	He's the maintainer. Please submit.

>  drivers/sound/ad1889.c                            |    2 
	parisc specific.

>  drivers/video/Config.in                           |   14 
>  drivers/video/dummycon.c                          |   10 
>  drivers/video/sstfb.c                             |  114 
	parisc specific.

>  fs/Makefile                                       |    1 
>  fs/binfmt_elf.c                                   |  288 -
>  fs/exec.c                                         |   97 
>  fs/open.c                                         |   22 
>  fs/read_write.c                                   |   40 
>  include/asm-generic/xor.h                         |  378 +
>  include/asm-m68k/machdep.h                        |    4 
>  include/asm-m68k/rtc.h                            |   50 
	I expect these are upstream changes

>  include/asm-parisc/checksum.h                     |   26 
...
	parisc specific.
	(logo was updated among other things)

>  include/linux/binfmts.h                           |    2 
...
	Need to review if the remaining diff are upstream or our changes.
	I suspect most are upstream.

> (hmm don't remember if linux_logo is of mine dpkg install or a new one in
> our tree :)

new one in our tree.

hth - thanks!
grant


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Hi pa-ckers!

As I was working on 2.5 SMPness on our A500, tausq suggested me to try SMP
kernel on a UP box.
So I deconfigured one CPU on the A500.

The kernel failed miserably, and I rebooted the box with its _original 2.4
SMP kernel_, _without bringing the second CPU back online_.

I repeat: i booted the box with the 2.4 SMP kernel it used to run with 2
CPUs. That's 2.4.20-pa28 fwiw.

What a surprise!

The delay loop calibration gave a completely different value than what I'd
have expected according to previous boots.

see:

A500 configured with 2 CPUs:
Calibrating delay loop... 1097.72 BogoMIPS

A500 configured with 1 CPU:
Calibrating delay loop... 366.18 BogoMIPS

Please mind I'm not talking about "total bogomips".
I'm talking about the calibration that takes place at the very early stage
of the boot process, on 1 CPU (the monarch on SMP systems).

So that has nothing to do with having half bogomips because there's half
processors.

That being said, one would have noticed that 1097.72/366.18 ~= 3

Now I wonder, is that normal (I couldn't check on another arch), or is
that some kind of new and unknown bug?

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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I am compiling on PARISC.
derek
Richard Hirst <rhirst@linuxcare.com> wrote:On Mon, Apr 07, 2003 at 07:43:51AM -0700, Derek Engelhaupt wrote:
> Ok, still having the same Raid creation issues from last week. The
> only thing I can thing of is that my Make of the new CVS palo is
> screwy. First time outside of class that I've actually had to install
> something from source so I included my make below. What bothers me is
> the error that it can't stat iplboot. I'm assuming that the iplboot

iplboot is only built if you compile on parisc, iirc. The debian source
debian/pool/main/p/palo/palo_1.2.tar.gz contains iplboot, and there are
i386 palo debs for 1.2 in the archive too, if that's what you want.

Richard

_______________________________________________
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<DIV>I am compiling on PARISC.<BR></DIV>
<DIV>derek</DIV>
<DIV><BR><B><I>Richard Hirst &lt;rhirst@linuxcare.com&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">On Mon, Apr 07, 2003 at 07:43:51AM -0700, Derek Engelhaupt wrote:<BR>&gt; Ok, still having the same Raid creation issues from last week. The<BR>&gt; only thing I can thing of is that my Make of the new CVS palo is<BR>&gt; screwy. First time outside of class that I've actually had to install<BR>&gt; something from source so I included my make below. What bothers me is<BR>&gt; the error that it can't stat iplboot. I'm assuming that the iplboot<BR><BR>iplboot is only built if you compile on parisc, iirc. The debian source<BR>debian/pool/main/p/palo/palo_1.2.tar.gz contains iplboot, and there are<BR>i386 palo debs for 1.2 in the archive too, if that's what you want.<BR><BR>Richard<BR><BR>___________________
 ____________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
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Grant Grundler wrote:

>On Fri, Apr 11, 2003 at 07:40:32AM +0200, Joel Soete wrote:
>  
>
>>Here is the rough diffstat (still have to reverse ql driver patches, I will
>>try to find time this week-end :) )
>>    
>>
>
>cool - let me add some general comments.
>You might break the diff up into chunks along the lines that
>I've commented on them below. You should end up with something like
>15-20 patches.
>
>  
>
>> Documentation/Configure.help                      |   90 
>>    
>>
>	I expect parisc-specific changes here.
>
>  
>
1) CONFIG_HP_SDC (parisc specific)
2) Serial MUX and PDC support (parisc specific)
3) Generic Real Time Clock Support ?
4) CONFIG_IOMMU_CCIO (parisc specific)

>> Makefile                                          |   16 
>>    
>>
>	Don't submit the Makefile unless you are sure we need it.
>
>  
>
>> arch/m68k/config.in                               |    5 
>>    
>>
>...
>	Don't submit m68k - Marcello should be ahead here.
>  
>
Clearly

>  
>
>> arch/parisc/config.in                             |    6 
>>    
>>
>...
>	parisc specific (our tree is authoritative)
>	Need to review for changes in Marcelo's tree.
>	I expect Marcello to take the mess as-is if there
>	are no conflicts.
>
>  
>
>> drivers/char/Config.in                            |    3 
>>
>> drivers/char/Makefile                             |    2 
>>
+if [ "$CONFIG_PARISC" = "y" ]; then
+   bool 'Generic RTC device support' CONFIG_GENRTC
+fi

>> drivers/char/pty.c                                |    4 
>>
gcc-3.2 barier workaround

>> drivers/char/serial.c                             |  115 
>>    
>>
>	Diva Support? If so, that's common to parisc/ia64.
>
yes (for this last)

>
>  
>
>> drivers/gsc/dino.c                                |    9 
>>    
>>
>	parisc specific.
>
>  
>
>> drivers/ide/pci/ns87415.c                         |    8 
>> drivers/ide/setup-pci.c                           |    2 
>>    
>>
>	Suckyio support. This probably needs to go to Andre Hedrick.
>
>  
>
>> drivers/net/acenic.c                              |    5 
>>    
>>
>	Jes Sorensen has all my changes for this driver.
>	Jes, can you compare Marcello's tree with ours?
>	(and please make sure Marcello gets the latest?)
>
>  
>
>> drivers/net/lasi_82596.c                          |    2 
>>    
>>
>	parisc specific
>
>  
>
>> drivers/net/pcnet32.c                             |   26 
>>    
>>
>	Dunno.
>  
>
* v1.27c Sat Apr 13 2002 Helge Deller <deller@gmx.de>
* typo-fixes & cleanups

>> drivers/net/tulip/eeprom.c                        |    3 
>>
?? should be wrong merge (have to test on a b180 and examine compile 
logs :(( )

>> drivers/net/tulip/media.c                         |   29 
>>    
>>
>	Jeff Garzik has blessed changes I've made here.
>	I expect this to be about the PHY reset and media table changes
>	for card-mode Dino (rbrad's changes).
>
Yes (for this last)

>
>  
>
>> drivers/net/wireless/airo.c                       |    7 
>>    
>>
>	Fixes from Lamont. He's not the maintainer but the card should
>	now work under parisc-linux. He's got one running in a B180.
>
>  
>
>> drivers/pci/quirks.c                              |    3 
>>    
>>
>	upstream changes.
>
>  
>
>> drivers/pci/setup-bus.c                           |   37 
>>    
>>
>	I expect this is the bridge_ctl field I added using
>	Russell King's patch (arm/pci maintainer). This probably
>	can NOT go in as-is. If the bulk of the other changes
>	go in, I'll deal with this.
>
>  
>
>> drivers/scsi/Config.in                            |   57 
>> drivers/scsi/Makefile                             |   15 
>>    
>>
>	Added qla2xxx
>
>  
>
>> drivers/scsi/cpqfcTScontrol.c                     |   45 
>> drivers/scsi/cpqfcTSi2c.c                         |    3 
>> drivers/scsi/cpqfcTSinit.c                        |   12 
>> drivers/scsi/cpqfcTSstructs.h                     |    4 
>> drivers/scsi/cpqfcTSworker.c                      |    2 
>>    
>>
>	These are my cleanups so one can load/unload the module 
>	without crashing the system. TL chips (5100/5166) should
>	work but HP XL2 HBAs do not - need more work to read the serial
>	PROM and pull the GBIC info/WWW id out.  I haven't tested
>	this on ia64, only parisc.
>
>	This is an orphan'd driver.  I talked to the current maintainers
>	and they just don't have time to work on it.
>
Hmm I also just exchange a short mail with him and the idea was that it 
would be better to re-write completely this driver (without any doc and 
not yet enough knowledge on writing driver, I abandon the idea to work 
on, sorry)

> This is the same
>	group that supports cciss driver (SmartArray cards).
>	I've submitted these changes about 2 months ago. 
>
>	See http://sourceforge.net/projects/cpqfc.
>  
>
>> drivers/scsi/ncr53c8xx.c                          |  341 +
>>    
>>
>	rhirst changes for zalon support?
>
>  
>
>> drivers/scsi/qla2xxx/Config.in                    |    6 
>> drivers/scsi/qla2xxx/Makefile                     |   13 
>>    
>>
>...
>	"New" driver. This is the released qla2xxx v6.0.4 from Qlogic.
>	Works on ia64 (weekend of hazard testing) but not quite on parisc.
>	At least it doesn't crash parisc. I have a card installed in
>	an a500 if someone has time to poke at this some more.
>  
>
(is ql we used on some of our Sun could work also on parisc? if yes my 
pb would be to convince our _new_ HP engineer to put one in the N I 
spoke about elsewhre ;?)

>  
>
>> drivers/scsi/sym53c8xx.c                          |   44 
>> drivers/scsi/sym53c8xx_2/sym_glue.c               |   14 
>> drivers/scsi/sym53c8xx_2/sym_hipd.c               |   35 
>> drivers/scsi/sym53c8xx_defs.h                     |   83 
>>    
>>
>	All of these sym53c8xx changes have been blessed by Gerard Roudier.
>	He's the maintainer. Please submit.
>
>  
>
>> drivers/sound/ad1889.c                            |    2 
>>    
>>
>	parisc specific.
>
>  
>
>> drivers/video/Config.in                           |   14 
>> drivers/video/dummycon.c                          |   10 
>> drivers/video/sstfb.c                             |  114 
>>    
>>
>	parisc specific.
>
>  
>
>> fs/Makefile                                       |    1 
>> fs/binfmt_elf.c                                   |  288 -
>> fs/exec.c                                         |   97 
>> fs/open.c                                         |   22 
>> fs/read_write.c                                   |   40 
>> include/asm-generic/xor.h                         |  378 +
>> include/asm-m68k/machdep.h                        |    4 
>> include/asm-m68k/rtc.h                            |   50 
>>    
>>
>	I expect these are upstream changes
>
>  
>
>> include/asm-parisc/checksum.h                     |   26 
>>    
>>
>...
>	parisc specific.
>	(logo was updated among other things)
>
>  
>
>> include/linux/binfmts.h                           |    2 
>>    
>>
>...
>	Need to review if the remaining diff are upstream or our changes.
>	I suspect most are upstream.
>
>  
>
>>(hmm don't remember if linux_logo is of mine dpkg install or a new one in
>>our tree :)
>>    
>>
>
>new one in our tree.
>
>hth - thanks!
>grant
>
>  
>
Ok I will examine deepely the rest.

I already had a ruby script which help me to 'split' a patch into 'per 
file' patch so I could easily re-merge some one together as all you mark 
me parisc specific, ...

I will  try to submit a first draft next week,
     Joel




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Subject: [parisc-linux] Re: target/10272: [3.0/3.2/3.3/3.4] [HP-PA] Floating point args not correctly loaded for function calls
Date: 12 Apr 2003 21:17:27 -0000
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Synopsis: [3.0/3.2/3.3/3.4] [HP-PA] Floating point args not correctly loaded for function calls

Responsible-Changed-From-To: unassigned->danglin
Responsible-Changed-By: danglin
Responsible-Changed-When: Sat Apr 12 21:17:27 2003
Responsible-Changed-Why:
    Assignment.
State-Changed-From-To: open->closed
State-Changed-By: danglin
State-Changed-When: Sat Apr 12 21:17:27 2003
State-Changed-Why:
    Some problem as 10271.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10272


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Subject: [parisc-linux] Re: target/10271: [3.0/3.2/3.3/3.4] [HPPA] Floating point args don't get reloaded across function calls at -O2
Date: 12 Apr 2003 21:47:57 -0000
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Synopsis: [3.0/3.2/3.3/3.4] [HPPA] Floating point args don't get reloaded across function calls at -O2

Responsible-Changed-From-To: unassigned->danglin
Responsible-Changed-By: danglin
Responsible-Changed-When: Sat Apr 12 21:47:57 2003
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    Assignment.
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State-Changed-When: Sat Apr 12 21:47:57 2003
State-Changed-Why:
    Confirmed.
    
    There is a problem with the usage notes for argument registers in sibling calls when an argument needs to be passed in both general and floating point registers.  The usage notes appear correct in the initial rtl but the note for the general general register for the third argument of the fprintf call is being dropped.  This causes the insns which load these argument registers to be deleted.
    
    Correct code is generated if the -fno-optimize-sibling-calls option is specified.  The first fprintf call behaves correctly because it isn't a sibling call.
    
    More analysis is needed to determine why usage notes are being dropped in sibling calls.
    
    This is a regression as sibcalls were first enabled on this port in 3.1 branch.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10271


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Subject: [parisc-linux] Re: target/10237: [3.2 regression] [HPPA] Internal compiler error in insn_default_length, at insn-attrtab.c:1203
Date: 12 Apr 2003 22:24:29 -0000
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Synopsis: [3.2 regression] [HPPA] Internal compiler error in insn_default_length, at insn-attrtab.c:1203

Responsible-Changed-From-To: unassigned->danglin
Responsible-Changed-By: danglin
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State-Changed-When: Sat Apr 12 22:24:28 2003
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    The code is illegal.  A return statement without an expression can only appear in a function whose return type is void.
    
    The ICE is fixed in 3.3.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10237


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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] some 2.5 kernel profile data
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Xref: news.gmane.org gmane.linux.ports.parisc:18239

i ran 'readprofile' on a 2.5.67-pa3 UP kernel (a500, 64-bit) with
several different workloads. here are the numbers if anyone is
interested.

the results are from 
readprofile -m System.map -d vmlinux | sort -rn -k3 | head -30
Each data set is collected from a freshly booted kernel. 

1) 'make clean vmlinux' on a 2.5 kernel tree:

1040421 cpu_idle                       14450.2917
  7616 fdsync                         380.8000
 32303 flush_kernel_icache_page       323.0300
  9059 flush_user_dcache_range_asm    251.6389
  8762 flush_user_icache_range_asm    243.3889
  1066 fioneloop                      133.2500
 10400 clear_user_page_asm             92.8571
  3133 flush_kernel_dcache_page        31.3300
  2457 purge_kernel_dcache_page        24.5700
  2725 copy_user_page_asm              17.9276
   228 fimanyloop                      11.4000
  2583 handle_interruption              6.9435
  1215 pdc_tod_read                     6.6033
    88 syscall_check_bh                 5.5000
   222 .L1123                           4.6250
   209 flush_all_caches                 3.7321
1128570 total                            3.6959 0.83%
    36 intr_check_sig                   3.0000
    82 syscall_exit                     2.0500
    37 intr_return                      1.8500
   436 syscall_restore                  1.7581
    20 fisync                           1.6667
   379 parisc_acctyp                    1.3536
   546 intr_restore                     1.2080
  1024 do_page_fault                    1.1963
    99 __wake_up                        1.0312
    11 intr_check_resched               0.9167
     7 syscall_check_sig                0.8750
    65 .L1073                           0.8553
   176 update_mmu_cache                 0.6286

2) cp -r glibc glibc.bak; sync
   glibc is a glibc source tree with ~24k files (~726MB)
   (Note that this is on a s/w raid0 partition....)

409712 cpu_idle                       5690.4444
   770 fdsync                          38.5000
   985 flush_user_icache_range_asm     27.3611
   979 flush_user_dcache_range_asm     27.1944
  1788 flush_kernel_icache_page        17.8800
    99 fioneloop                       12.3750
   136 intr_return                      6.8000
   996 pdc_tod_read                     5.4130
   341 copy_user_page_asm               2.2434
   179 flush_kernel_dcache_page         1.7900
    32 fimanyloop                       1.6000
417412 total                            1.3670 0.29%
    13 syscall_check_bh                 0.8125
    67 __wake_up                        0.6979
   165 syscall_restore                  0.6653
    25 syscall_exit                     0.6250
   228 pdc_iodc_putc                    0.6064
    54 current_kernel_time              0.5192
    58 clear_user_page_asm              0.5179
     3 syscall_check_resched            0.3750
   113 handle_interruption              0.3038
    11 remove_wait_queue                0.2750
    24 prepare_to_wait                  0.2500
    27 io_schedule                      0.2109
     5 scheduling_functions_start_here   0.2083
     2 intr_check_sig                   0.1667
   158 schedule                         0.1274
     1 L21                             0.1250
    29 add_timer                        0.1133
    18 sys_adjtimex                     0.1071

3) from another machine on the same subnet, ftp the whole glibc tree 
   as a single 13MB tar file. (@ 1.11MB/s)

138489 cpu_idle                       1923.4583
   743 fdsync                          37.1500
   980 flush_user_icache_range_asm     27.2222
   980 flush_user_dcache_range_asm     27.2222
  2000 flush_kernel_icache_page        20.0000
    93 fioneloop                       11.6250
  1009 pdc_tod_read                     5.4837
   359 copy_user_page_asm               2.3618
   169 flush_kernel_dcache_page         1.6900
    22 fimanyloop                       1.1000
   223 pdc_iodc_putc                    0.5931
    66 clear_user_page_asm              0.5893
145635 total                            0.4769 0.23%
     3 fisync                           0.2500
    83 handle_interruption              0.2231
     8 syscall_exit                     0.2000
    43 syscall_restore                  0.1734
     3 intr_return                      0.1500
     7 add_wait_queue                   0.1250
     5 remove_wait_queue                0.1250
     2 syscall_check_bh                 0.1250
     1 syscall_check_resched            0.1250
     6 flush_cache_all_local            0.1071
     9 purge_kernel_dcache_page         0.0900
    18 pdc_pat_cell_module              0.0833
     1 intr_check_sig                   0.0833
     5 .L1073                           0.0658
    25 intr_restore                     0.0553
     5 __wake_up                        0.0521
     2 .L1123                           0.0417

Hope someone find these useful and can help make the kernel more
optimized.. :-) I'm not quite sure why there are so many cache
flushes.... 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


From - Thu Nov 08 21:27:30 2018
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From: "Joel Soete" <jsoe0708@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] parisc-linux.org kernel
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--========/3E8AE87E00006BD1/mail.tiscali.be
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Hi Gerard,

For the merge of palinux tree with upstream, I would like to submit to your
attention following patches needed in parisc tree:

>-- Original Message --
>From: Grant Grundler <grundler@parisc-linux.org>
>To: Joel Soete <jsoe0708@tiscali.be>
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] parisc-linux.org kernel
>Date: Fri, 11 Apr 2003 09:58:50 -0600
>
>
>On Fri, Apr 11, 2003 at 07:40:32AM +0200, Joel Soete wrote:
>> Here is the rough diffstat (still have to reverse ql driver patches,
I
>will
>> try to find time this week-end :) )
>
>cool - let me add some general comments.
>You might break the diff up into chunks along the lines that
>I've commented on them below. You should end up with something like
>15-20 patches.
>
...
>>  drivers/scsi/ncr53c8xx.c                          |  341 +
>	rhirst changes for zalon support?
...
>
>>  drivers/scsi/sym53c8xx.c                          |   44
>>  drivers/scsi/sym53c8xx_2/sym_glue.c               |   14
>>  drivers/scsi/sym53c8xx_2/sym_hipd.c               |   35
>>  drivers/scsi/sym53c8xx_defs.h                     |   83
>	All of these sym53c8xx changes have been blessed by Gerard Roudier.
>	He's the maintainer. Please submit.
>

Thanks in advance for your help,
    Joel



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Subject: Re: [parisc-linux] parisc-linux.org kernel
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joel, do not include patches as attachments, include them inline.

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From: "Joel Soete" <jsoe0708@tiscali.be>
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Hi Andre,


>-- Original Message --
>From: Grant Grundler <grundler@parisc-linux.org>
>To: Joel Soete <jsoe0708@tiscali.be>
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] parisc-linux.org kernel
>Date: Fri, 11 Apr 2003 09:58:50 -0600
>
>
>On Fri, Apr 11, 2003 at 07:40:32AM +0200, Joel Soete wrote:
>> Here is the rough diffstat (still have to reverse ql driver patches, I
>will
>> try to find time this week-end :) )
>
>cool - let me add some general comments.
>You might break the diff up into chunks along the lines that
>I've commented on them below. You should end up with something like
>15-20 patches.
>
>>  Documentation/Configure.help                      |   90 
>	I expect parisc-specific changes here.
>
>>  Makefile                                          |   16 
>	Don't submit the Makefile unless you are sure we need it.
>
...
>
>>  drivers/ide/pci/ns87415.c                         |    8 
>>  drivers/ide/setup-pci.c                           |    2 
>	Suckyio support. This probably needs to go to Andre Hedrick.
>
Can you have a look on those two small patch (parisc specific):

diff -NaurX dontdiff linux-2.4.21-pre7/drivers/ide/pci/ns87415.c linux-2.4.21-pre7-pa3x/drivers/ide/pci/ns87415.c
--- linux-2.4.21-pre7/drivers/ide/pci/ns87415.c	2003-03-27 19:43:45.000000000
+0100
+++ linux-2.4.21-pre7-pa3x/drivers/ide/pci/ns87415.c	2003-02-28 18:43:45.000000000
+0100
@@ -27,6 +27,10 @@
 
 #include "ns87415.h"
 
+#if defined(__hppa__) && defined(CONFIG_SUPERIO)
+#include <asm/superio.h>
+#endif
+
 static unsigned int ns87415_count = 0, ns87415_control[MAX_HWIFS] = { 0
};
 
 /*
@@ -200,7 +204,11 @@
 	}
 
 	if (!using_inta)
+#if defined(__hppa__) && defined(CONFIG_SUPERIO)
+		hwif->irq = superio_get_ide_irq();	/* legacy mode */
+#else
 		hwif->irq = hwif->channel ? 15 : 14;	/* legacy mode */
+#endif
 	else if (!hwif->irq && hwif->mate && hwif->mate->irq)
 		hwif->irq = hwif->mate->irq;	/* share IRQ with mate */
 
diff -NaurX dontdiff linux-2.4.21-pre7/drivers/ide/setup-pci.c linux-2.4.21-pre7-pa3x/drivers/ide/setup-pci.c
--- linux-2.4.21-pre7/drivers/ide/setup-pci.c	2003-04-10 08:20:37.000000000
+0200
+++ linux-2.4.21-pre7-pa3x/drivers/ide/setup-pci.c	2003-04-08 14:13:41.000000000
+0200
@@ -477,7 +477,7 @@
 	if ((d->autodma == AUTODMA) ||
 	    ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE &&
 	     (dev->class & 0x80))) {
-		unsigned long dma_base = ide_get_or_set_dma_base(hwif);
+		u32 dma_base = ide_get_or_set_dma_base(hwif);
 		if (dma_base && !(pcicmd & PCI_COMMAND_MASTER)) {
 			/*
  			 * Set up BM-DMA capability

Thanks in advance for your help,
    Joel


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On Llu, 2003-04-14 at 13:13, Joel Soete wrote:
> +#if defined(__hppa__) && defined(CONFIG_SUPERIO)
> +#include <asm/superio.h>
> +#endif
> +

Please keep superio out of generic drivers


>  	if (!using_inta)
> +#if defined(__hppa__) && defined(CONFIG_SUPERIO)
> +		hwif->irq = superio_get_ide_irq();	/* legacy mode */
> +#else
>  		hwif->irq = hwif->channel ? 15 : 14;	/* legacy mode */
> +#endif
>  	else if (!hwif->irq && hwif->mate && hwif->mate->irq)
>  		hwif->irq = hwif->mate->irq;	/* share IRQ with mate */

Ughh. Ok this needs tackling in a more general way. get_legacy_irq(0/1)
perhaps. This isnt the only port we need to sort out.

Ok suppose you added superio.h to include/asm-parisc/ide.h and added
ide_get_legacy(int n) [n=0/1] for interfaces. I can do the same for the
other ports (return 14+n) and it will stay clean in 2.4 and 2.5

 
>  	     (dev->class & 0x80))) {
> -		unsigned long dma_base = ide_get_or_set_dma_base(hwif);
> +		u32 dma_base = ide_get_or_set_dma_base(hwif);

Thats reverting a fix. dma_base must be unsigned long for 64bit
platforms. Looks just like a merge error.


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To: "Matthew Wilcox" <willy@debian.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:18244

>-- Original Message --
>Date: Mon, 14 Apr 2003 12:54:16 +0100
>From: Matthew Wilcox <willy@debian.org>
>To: Joel Soete <jsoe0708@tiscali.be>
>Cc: Gerard Roudier <groudier@free.fr>,
>	Grant Grundler <grundler@parisc-linux.org>,
>	parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] parisc-linux.org kernel
>
>
>
>joel, do not include patches as attachments, include them inline.
>
>-- 
Shame on me: I again forgot.

Here there are:

diff -NaurX dontdiff linux-2.4.21-pre7/drivers/scsi/sym53c8xx.c linux-2.4.21-pre7-pa3x/drivers/scsi/sym53c8xx.c
--- linux-2.4.21-pre7/drivers/scsi/sym53c8xx.c	2003-03-27 19:43:51.000000000
+0100
+++ linux-2.4.21-pre7-pa3x/drivers/scsi/sym53c8xx.c	2003-03-27 18:50:22.000000000
+0100
@@ -4915,6 +4915,11 @@
 	u_long	period;
 	int i;
 
+#ifdef CONFIG_PARISC
+	char scsi_mode = -1;
+	struct hardware_path hwpath;
+#endif
+
 	/*
 	**	Wide ?
 	*/
@@ -4986,6 +4991,29 @@
 	 */
 
 	period = (4 * div_10M[0] + np->clock_khz - 1) / np->clock_khz;
+
+#if defined(CONFIG_PARISC)
+	/* Host firmware (PDC) keeps a table for crippling SCSI capabilities.
+	 * Many newer machines export one channel of 53c896 chip
+	 * as SE, 50-pin HD.  Also used for Multi-initiator SCSI clusters
+	 * to set the SCSI Initiator ID.
+	 */
+	get_pci_node_path(np->pdev, &hwpath);
+	if (pdc_get_initiator(&hwpath, &np->myaddr, &period, &np->maxwide, &scsi_mode))
+	{
+		if (scsi_mode >= 0) {
+			/* C3000 PDC reports period/mode */
+			driver_setup.diff_support = 0;
+			switch(scsi_mode) {
+			case 0:	np->scsi_mode = SMODE_SE; break;
+			case 1:	np->scsi_mode = SMODE_HVD; break;
+			case 2:	np->scsi_mode = SMODE_LVD; break;
+			default:	break;
+			}
+		}
+	}
+#endif
+
 	if	(period <= 250)		np->minsync = 10;
 	else if	(period <= 303)		np->minsync = 11;
 	else if	(period <= 500)		np->minsync = 12;
@@ -5128,7 +5156,6 @@
 		np->rv_ctest4	|= MPEE;	/* Master parity checking */
 	if (driver_setup.scsi_parity)
 		np->rv_scntl0	|= 0x0a;	/*  full arb., ena parity, par->ATN  */
-
 #ifdef SCSI_NCR_NVRAM_SUPPORT
 	/*
 	**	Get parity checking, host ID and verbose mode from NVRAM
@@ -5196,7 +5223,7 @@
 			if (np->sv_stest2 & 0x20)
 				np->scsi_mode = SMODE_HVD;
 			break;
-		default:/* Don't care about HVD */	
+		default: /* Don't care about HVD */	
 			break;
 		}
 	}
@@ -5239,6 +5266,7 @@
 		tcb_p tp = &np->target[i];
 
 		tp->usrsync = 255;
+
 #ifdef SCSI_NCR_NVRAM_SUPPORT
 		if (nvram) {
 			switch(nvram->type) {
@@ -5256,10 +5284,11 @@
 			if (driver_setup.use_nvram & 0x8)
 				tp->usrflag &= ~UF_NOSCAN;
 		}
-		else {
+		else
 #else
-		if (1) {
+		if (1) 
 #endif
+		{
 			tp->usrsync = driver_setup.default_sync;
 			tp->usrwide = driver_setup.max_wide;
 			tp->usrtags = MAX_TAGS;
@@ -7074,7 +7103,11 @@
 		((INW(nc_sbdl) & 0xff00) << 10) |	/* d15-8    */
 		INB(nc_sbcl);	/* req ack bsy sel atn msg cd io    */
 
+#ifdef CONFIG_PARISC
+	if (!np->maxwide)
+#else
 	if (!(np->features & FE_WIDE))
+#endif
 		term &= 0x3ffff;
 
 	if (term != (2<<7)) {
@@ -12974,6 +13007,7 @@
 		}
 		if (i != count)	/* Ignore this device if we already have it */
 			continue;
+		pci_set_master(pcidev);
 		devp = &devtbl[count];
 		devp->host_id = driver_setup.host_id;
 		devp->attach_done = 0;
@@ -13217,7 +13251,7 @@
 		return -1;
 	}
 
-#ifdef __powerpc__
+#if defined(__powerpc__) || defined(__hppa__)
 	/*
 	**	Fix-up for power/pc.
 	**	Should not be performed by the driver.
diff -NaurX dontdiff linux-2.4.21-pre7/drivers/scsi/sym53c8xx_2/sym_glue.c
linux-2.4.21-pre7-pa3x/drivers/scsi/sym53c8xx_2/sym_glue.c
--- linux-2.4.21-pre7/drivers/scsi/sym53c8xx_2/sym_glue.c	2002-11-29 00:53:14.000000000
+0100
+++ linux-2.4.21-pre7-pa3x/drivers/scsi/sym53c8xx_2/sym_glue.c	2002-12-20
15:56:22.000000000 +0100
@@ -142,10 +142,24 @@
 #define	SYM_LOCK_HCB(np, flags)   spin_lock_irqsave(&np->s.smp_lock, flags)
 #define	SYM_UNLOCK_HCB(np, flags) spin_unlock_irqrestore(&np->s.smp_lock,
flags)
 
+/* Warning!
+ * sym2 driver used to hold iorl in sym53c8xx_intr and sym_timer
+ * with these macros. However, we have observed that this causes
+ * a deadlock with the iorl held by scsi_register_host. A survey
+ * of a couple of other scsi drivers that uses the "new" eh
+ * code seems to suggest that this is not required. I've disabled
+ * these for now, without having completely understood if this
+ * is correct.
+ */
+#ifndef CONFIG_PARISC /* hack */
 #define	SYM_LOCK_SCSI(np, flags) \
 		spin_lock_irqsave(&io_request_lock, flags)
 #define	SYM_UNLOCK_SCSI(np, flags) \
 		spin_unlock_irqrestore(&io_request_lock, flags)
+#else
+#define	SYM_LOCK_SCSI(np, flags)
+#define	SYM_UNLOCK_SCSI(np, flags)
+#endif
 
 /* Ugly, but will make things easier if this locking will ever disappear
*/
 #define	SYM_LOCK_SCSI_NOSAVE(np)	spin_lock_irq(&io_request_lock)
diff -NaurX dontdiff linux-2.4.21-pre7/drivers/scsi/sym53c8xx_2/sym_hipd.c
linux-2.4.21-pre7-pa3x/drivers/scsi/sym53c8xx_2/sym_hipd.c
--- linux-2.4.21-pre7/drivers/scsi/sym53c8xx_2/sym_hipd.c	2003-03-27 19:43:51.000000000
+0100
+++ linux-2.4.21-pre7-pa3x/drivers/scsi/sym53c8xx_2/sym_hipd.c	2003-03-27
18:50:22.000000000 +0100
@@ -289,7 +289,11 @@
 		((INW(nc_sbdl) & 0xff00) << 10) |	/* d15-8    */
 		INB(nc_sbcl);	/* req ack bsy sel atn msg cd io    */
 
+#ifdef CONFIG_PARISC
+	if (!np->maxwide)
+#else
 	if (!(np->features & FE_WIDE))
+#endif
 		term &= 0x3ffff;
 
 	if (term != (2<<7)) {
@@ -744,6 +748,12 @@
 	u32	period;
 	int i;
 
+#ifdef CONFIG_PARISC
+	unsigned long pdc_period;
+	char scsi_mode = -1;
+	struct hardware_path hwpath;
+#endif
+
 	/*
 	 *  Wide ?
 	 */
@@ -800,6 +810,31 @@
 	 * Btw, 'period' is in tenths of nanoseconds.
 	 */
 	period = (4 * div_10M[0] + np->clock_khz - 1) / np->clock_khz;
+
+#if defined(CONFIG_PARISC)
+	/* Host firmware (PDC) keeps a table for crippling SCSI capabilities.
+	 * Many newer machines export one channel of 53c896 chip
+	 * as SE, 50-pin HD.  Also used for Multi-initiator SCSI clusters
+	 * to set the SCSI Initiator ID.
+	 */
+	get_pci_node_path(np->s.device, &hwpath);
+	if (pdc_get_initiator(&hwpath, &np->myaddr, &pdc_period, &np->maxwide,
&scsi_mode))
+	{
+		if (scsi_mode >= 0) {
+			/* C3000 PDC reports period/mode */
+			SYM_SETUP_SCSI_DIFF = 0;
+			switch(scsi_mode) {
+			case 0:	np->scsi_mode = SMODE_SE; break;
+			case 1:	np->scsi_mode = SMODE_HVD; break;
+			case 2:	np->scsi_mode = SMODE_LVD; break;
+			default:	break;
+			}
+		}
+
+		period = (u32) pdc_period;
+	}
+#endif
+
 	if	(period <= 250)		np->minsync = 10;
 	else if	(period <= 303)		np->minsync = 11;
 	else if	(period <= 500)		np->minsync = 12;
diff -NaurX dontdiff linux-2.4.21-pre7/drivers/scsi/sym53c8xx_defs.h linux-2.4.21-pre7-pa3x/drivers/scsi/sym53c8xx_defs.h
--- linux-2.4.21-pre7/drivers/scsi/sym53c8xx_defs.h	2002-08-03 02:39:44.000000000
+0200
+++ linux-2.4.21-pre7-pa3x/drivers/scsi/sym53c8xx_defs.h	2003-03-19 14:33:25.000000000
+0100
@@ -82,9 +82,11 @@
 /*
  *	No more an option, enabled by default.
  */
+#ifndef ENABLE_SCSI_ZALON
 #ifndef CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
 #define CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
 #endif
+#endif
 
 /*
 **	These options are not tunable from 'make config'
@@ -185,6 +187,24 @@
 #endif
 #elif defined(__sparc__)
 #undef SCSI_NCR_IOMAPPED
+#elif defined(__hppa__)
+#if defined(ENABLE_SCSI_ZALON)
+#undef SCSI_NCR_IOMAPPED
+#endif
+#endif
+
+/*
+ * Should we enable DAC cycles on Sparc64 platform?
+ * Until further investigation we do not enable it
+ * at the moment.
+ * We may want to enable it for __ia64__ (untested)
+ */
+#if defined(__ia64__)
+#    if !defined(SCSI_NCR_USE_64BIT_DAC)
+#        define SCSI_NCR_USE_64BIT_DAC
+#    endif
+#else
+#    undef SCSI_NCR_USE_64BIT_DAC
 #endif
 
 /*
@@ -383,25 +403,24 @@
 #define	readb_raw	readb
 #define	writeb_raw	writeb
 
-#if defined(__hppa__)
-#define	readw_l2b(a)	le16_to_cpu(readw(a))
-#define	readl_l2b(a)	le32_to_cpu(readl(a))
-#define	writew_b2l(v,a)	writew(cpu_to_le16(v),a)
-#define	writel_b2l(v,a)	writel(cpu_to_le32(v),a)
-#elif defined(__mips__)
-#define readw_l2b	readw
-#define readl_l2b	readl
-#define writew_b2l	writew
-#define writel_b2l	writel
-#define inw_l2b 	inw
-#define inl_l2b 	inl
-#define outw_b2l	outw
-#define outl_b2l	outl
+#if defined(SCSI_NCR_BIG_ENDIAN)
+#define	readw_l2b	__raw_readw
+#define	readl_l2b	__raw_readl
+#define	writew_b2l	__raw_writew
+#define	writel_b2l	__raw_writel
+#define	readw_raw	__raw_readw
+#define	readl_raw(a)	__raw_readl((unsigned long)(a))
+#define	writew_raw	__raw_writew
+#define	writel_raw(v,a)	__raw_writel(v,(unsigned long)(a))
 #else	/* Other big-endian */
 #define	readw_l2b	readw
 #define	readl_l2b	readl
 #define	writew_b2l	writew
 #define	writel_b2l	writel
+#define	readw_raw	readw
+#define	readl_raw	readl
+#define	writew_raw	writew
+#define	writel_raw	writel
 #endif
 
 #else	/* little endian */
@@ -430,9 +449,11 @@
 #endif
 #endif
 
+#if !defined(__hppa__) && !defined(__mips__)
 #ifdef	SCSI_NCR_BIG_ENDIAN
 #error	"The NCR in BIG ENDIAN addressing mode is not (yet) supported"
 #endif
+#endif
 
 
 /*
@@ -585,10 +606,20 @@
 
 #else
 
+#ifdef ENABLE_SCSI_ZALON
+/* Only 8 or 32 bit transfers allowed */
+#define INW_OFF(o)		(readb((char *)np->reg + ncr_offw(o)) << 8 | readb((char
*)np->reg + ncr_offw(o) + 1))
+#else
 #define INW_OFF(o)		readw_raw((char *)np->reg + ncr_offw(o))
+#endif
 #define INL_OFF(o)		readl_raw((char *)np->reg + (o))
 
+#ifdef ENABLE_SCSI_ZALON
+/* Only 8 or 32 bit transfers allowed */
+#define OUTW_OFF(o, val)	do { writeb((char)((val) >> 8), (char *)np->reg
+ ncr_offw(o)); writeb((char)(val), (char *)np->reg + ncr_offw(o) + 1); }
while (0)
+#else
 #define OUTW_OFF(o, val)	writew_raw((val), (char *)np->reg + ncr_offw(o))
+#endif
 #define OUTL_OFF(o, val)	writel_raw((val), (char *)np->reg + (o))
 
 #endif
@@ -636,6 +667,10 @@
 **	NCR53C8XX Device Ids
 */
 
+#ifndef PSEUDO_ZALON_720_ID
+#define PSEUDO_ZALON_720_ID 0x5a00
+#endif
+
 #ifndef PCI_DEVICE_ID_NCR_53C810
 #define PCI_DEVICE_ID_NCR_53C810 1
 #endif
@@ -739,6 +774,9 @@
 #define FE_DAC	 	(1<<24)   /* Support DAC cycles (64 bit addressing) */
 #define FE_ISTAT1 	(1<<25)   /* Have ISTAT1, MBOX0, MBOX1 registers */
 #define FE_DAC_IN_USE	(1<<26)	  /* Platform does DAC cycles */
+#define FE_EHP		(1<<27)   /* 720: Even host parity */
+#define FE_MUX		(1<<28)   /* 720: Multiplexed bus */
+#define FE_EA		(1<<29)   /* 720: Enable Ack */
 
 #define FE_CACHE_SET	(FE_ERL|FE_CLSE|FE_WRIE|FE_ERMP)
 #define FE_SCSI_SET	(FE_WIDE|FE_ULTRA|FE_ULTRA2|FE_DBLR|FE_QUAD|F_CLK80)
@@ -760,6 +798,9 @@
 
 #define SCSI_NCR_CHIP_TABLE						\
 {									\
+ {PSEUDO_ZALON_720_ID, 0x0f, "720",  3,  8, 4,				\
+ FE_WIDE|FE_DIFF|FE_EHP|FE_MUX|FE_EA}					\
+ ,									\
  {PCI_DEVICE_ID_NCR_53C810, 0x0f, "810",  4,  8, 4,			\
  FE_ERL}								\
  ,									\
@@ -832,6 +873,7 @@
  */
 #define SCSI_NCR_CHIP_IDS		\
 {					\
+	PSEUDO_ZALON_720_ID,		\
 	PCI_DEVICE_ID_NCR_53C810,	\
 	PCI_DEVICE_ID_NCR_53C815,	\
 	PCI_DEVICE_ID_NCR_53C820,	\
@@ -1183,6 +1225,7 @@
 /*17*/  u_char    nc_mbox1;	/* 896 and later cores only */
 
 /*18*/	u_char	  nc_ctest0;
+	#define   EHP     0x04	/* 720 even host parity             */
 /*19*/  u_char    nc_ctest1;
 
 /*1a*/  u_char    nc_ctest2;
@@ -1200,6 +1243,7 @@
 
 /*20*/	u_char	  nc_dfifo;
 /*21*/  u_char    nc_ctest4;
+	#define   MUX     0x80  /* 720 host bus multiplex mode      */
 	#define   BDIS    0x80  /* mod: burst disable               */
 	#define   MPEE    0x08  /* mod: master parity error enable  */
 
@@ -1232,6 +1276,7 @@
 	#define   CLSE    0x80  /* mod: cache line size enable      */
 	#define   PFF     0x40  /* cmd: pre-fetch flush             */
 	#define   PFEN    0x20  /* mod: pre-fetch enable            */
+	#define   EA      0x20	/* mod: 720 enable-ack              */
 	#define   SSM     0x10  /* mod: single step mode            */
 	#define   IRQM    0x08  /* mod: irq mode (1 = totem pole !) */
 	#define   STD     0x04  /* cmd: start dma mode              */
@@ -1274,6 +1319,7 @@
 
 /*4e*/  u_char    nc_stest2;
 	#define   ROF     0x40	/* reset scsi offset (after gross error!) */
+	#define   DIF     0x20  /* 720 SCSI differential mode             */
 	#define   EXT     0x02  /* extended filtering                     */
 
 /*4f*/  u_char    nc_stest3;
@@ -1452,12 +1498,21 @@
 #define	SCR_SEL_TBL	0x42000000
 #define	SCR_SEL_TBL_ATN	0x43000000
 
+#ifdef SCSI_NCR_BIG_ENDIAN
+struct scr_tblsel {
+        u_char  sel_scntl3;
+        u_char  sel_id;
+        u_char  sel_sxfer;
+        u_char  sel_scntl4;	
+};
+#else
 struct scr_tblsel {
         u_char  sel_scntl4;	
         u_char  sel_sxfer;
         u_char  sel_id;
         u_char  sel_scntl3;
 };
+#endif
 
 #define SCR_JMP_REL     0x04000000
 #define SCR_ID(id)	(((u_int32)(id)) << 16)
diff -NaurX dontdiff linux-2.4.21-pre7/drivers/scsi/ncr53c8xx.c linux-2.4.21-pre7-pa3x/drivers/scsi/ncr53c8xx.c
--- linux-2.4.21-pre7/drivers/scsi/ncr53c8xx.c	2002-11-29 00:53:14.000000000
+0100
+++ linux-2.4.21-pre7-pa3x/drivers/scsi/ncr53c8xx.c	2002-12-20 15:56:21.000000000
+0100
@@ -82,6 +82,7 @@
 **	    Etc...
 **
 **	Supported NCR/SYMBIOS chips:
+**		53C720		(Wide,   Fast SCSI-2, HP Zalon)
 **		53C810		(8 bits, Fast SCSI-2, no rom BIOS) 
 **		53C815		(8 bits, Fast SCSI-2, on board rom BIOS)
 **		53C820		(Wide,   Fast SCSI-2, no rom BIOS)
@@ -180,6 +181,23 @@
 typedef u32 u_int32;
 typedef u64 u_int64;
 typedef	u_long		vm_offset_t;
+
+#ifdef __hppa__
+/* Yuck.  Current plan is to use ncr58c8xx.c for non-pci big endian
+** chips, and sym53c8xx.c for pci little endian chips.  Define this
+** here so it gets seen by sym53c8xx_defs.h, pulled in via ncr53c8xx.h.
+*/
+#define SCSI_NCR_BIG_ENDIAN
+/* INTFLY interrupts don't always seem to get serviced atm.....
+*/
+#define SIMULATED_INTFLY
+#endif
+
+#if defined(CONFIG_SCSI_ZALON) || defined(CONFIG_SCSI_ZALON_MODULE)
+#define ENABLE_SCSI_ZALON
+#include "zalon7xx.h"
+#endif
+
 #include "ncr53c8xx.h"
 
 /*
@@ -383,6 +401,8 @@
 	struct Scsi_Host *host, struct scsi_device *devlist);
 static void ncr53c8xx_intr(int irq, void *dev_id, struct pt_regs * regs);
 static void ncr53c8xx_timeout(unsigned long np);
+static int ncr53c8xx_proc_info(char *buffer, char **start, off_t offset,
+			int length, int hostno, int func);
 
 #define initverbose (driver_setup.verbose)
 #define bootverbose (np->verbose)
@@ -454,7 +474,8 @@
 #define	SIR_RESEL_BAD_I_T_L	(15)
 #define	SIR_RESEL_BAD_I_T_L_Q	(16)
 #define	SIR_DONE_OVERFLOW	(17)
-#define	SIR_MAX			(17)
+#define	SIR_INTFLY		(18)
+#define	SIR_MAX			(18)
 
 /*==========================================================
 **
@@ -626,6 +647,15 @@
 	**	negotiation of wide and synch transfer and device quirks.
 	**----------------------------------------------------------------
 	*/
+#ifdef SCSI_NCR_BIG_ENDIAN
+/*0*/	u_short	period;
+/*2*/	u_char	sval;
+/*3*/	u_char	minsync;
+/*0*/	u_char	wval;
+/*1*/	u_char	widedone;
+/*2*/	u_char	quirks;
+/*3*/	u_char	maxoffs;
+#else
 /*0*/	u_char	minsync;
 /*1*/	u_char	sval;
 /*2*/	u_short	period;
@@ -633,6 +663,7 @@
 /*1*/	u_char	quirks;
 /*2*/	u_char	widedone;
 /*3*/	u_char	wval;
+#endif
 
 #ifdef SCSI_NCR_INTEGRITY_CHECKING
 	u_char 	ic_min_sync;
@@ -843,10 +874,17 @@
 /*
 **	Last four bytes (host)
 */
+#ifdef	SCSI_NCR_BIG_ENDIAN
+#define  actualquirks  phys.header.status[3]
+#define  host_status   phys.header.status[2]
+#define  scsi_status   phys.header.status[1]
+#define  parity_status phys.header.status[0]
+#else
 #define  actualquirks  phys.header.status[0]
 #define  host_status   phys.header.status[1]
 #define  scsi_status   phys.header.status[2]
 #define  parity_status phys.header.status[3]
+#endif
 
 /*
 **	First four bytes (script)
@@ -1030,8 +1068,8 @@
 	**	be used for probing adapter implementation differences.
 	**----------------------------------------------------------------
 	*/
-	u_char	sv_scntl0, sv_scntl3, sv_dmode, sv_dcntl, sv_ctest3, sv_ctest4,
-		sv_ctest5, sv_gpcntl, sv_stest2, sv_stest4;
+	u_char	sv_scntl0, sv_scntl3, sv_dmode, sv_dcntl, sv_ctest0, sv_ctest3,
+		sv_ctest4, sv_ctest5, sv_gpcntl, sv_stest2, sv_stest4;
 
 	/*----------------------------------------------------------------
 	**	Actual initial value of IO register bits used by the 
@@ -1039,8 +1077,8 @@
 	**	features that are to be enabled.
 	**----------------------------------------------------------------
 	*/
-	u_char	rv_scntl0, rv_scntl3, rv_dmode, rv_dcntl, rv_ctest3, rv_ctest4,

-		rv_ctest5, rv_stest2;
+	u_char	rv_scntl0, rv_scntl3, rv_dmode, rv_dcntl, rv_ctest0, rv_ctest3,
+	rv_ctest4, rv_ctest5, rv_stest2;
 
 	/*----------------------------------------------------------------
 	**	Targets management.
@@ -1162,7 +1200,7 @@
 	*/
 	struct ccb	*ccb;		/* Global CCB			*/
 	struct usrcmd	user;		/* Command from user		*/
-	u_char		release_stage;	/* Synchronisation stage on release  */
+	volatile u_char	release_stage;	/* Synchronisation stage on release  */
 
 #ifdef SCSI_NCR_INTEGRITY_CHECKING
 	/*----------------------------------------------------------------
@@ -1201,6 +1239,23 @@
 */
 
 /*
+**	For HP Zalon/53c720 systems, the Zalon interface
+**	between CPU and 53c720 does prefetches, which causes
+**	problems with self modifying scripts.  The problem
+**	is overcome by calling a dummy subroutine after each
+**	modification, to force a refetch of the script on
+**	return from the subroutine.
+*/
+
+#ifdef ENABLE_SCSI_ZALON
+#define PREFETCH_FLUSH_CNT	2
+#define	PREFETCH_FLUSH		SCR_CALL, PADDRH (wait_dma),
+#else
+#define PREFETCH_FLUSH_CNT	0
+#define PREFETCH_FLUSH
+#endif
+
+/*
 **	Script fragments which are loaded into the on-chip RAM 
 **	of 825A, 875 and 895 chips.
 */
@@ -1208,7 +1263,7 @@
 	ncrcmd	start		[  5];
 	ncrcmd  startpos	[  1];
 	ncrcmd	select		[  6];
-	ncrcmd	select2		[  9];
+	ncrcmd	select2		[  9 + PREFETCH_FLUSH_CNT];
 	ncrcmd	loadpos		[  4];
 	ncrcmd	send_ident	[  9];
 	ncrcmd	prepare		[  6];
@@ -1224,7 +1279,7 @@
 	ncrcmd	setmsg		[  7];
 	ncrcmd	cleanup		[  6];
 	ncrcmd  complete	[  9];
-	ncrcmd	cleanup_ok	[  8];
+	ncrcmd	cleanup_ok	[  8 + PREFETCH_FLUSH_CNT];
 	ncrcmd	cleanup0	[  1];
 #ifndef SCSI_NCR_CCB_DONE_SUPPORT
 	ncrcmd	signal		[ 12];
@@ -1242,11 +1297,11 @@
 	ncrcmd  idle		[  2];
 	ncrcmd	reselect	[  8];
 	ncrcmd	reselected	[  8];
-	ncrcmd	resel_dsa	[  6];
+	ncrcmd	resel_dsa	[  6 + PREFETCH_FLUSH_CNT];
 	ncrcmd	loadpos1	[  4];
 	ncrcmd  resel_lun	[  6];
 	ncrcmd	resel_tag	[  6];
-	ncrcmd	jump_to_nexus	[  4];
+	ncrcmd	jump_to_nexus	[  4 + PREFETCH_FLUSH_CNT];
 	ncrcmd	nexus_indirect	[  4];
 	ncrcmd	resel_notag	[  4];
 	ncrcmd  data_in		[MAX_SCATTERL * 4];
@@ -1267,7 +1322,7 @@
 #endif
 	ncrcmd	select_no_atn	[  8];
 	ncrcmd	cancel		[  4];
-	ncrcmd	skip		[  9];
+	ncrcmd	skip		[  9 + PREFETCH_FLUSH_CNT];
 	ncrcmd	skip2		[ 19];
 	ncrcmd	par_err_data_in	[  6];
 	ncrcmd	par_err_other	[  4];
@@ -1300,9 +1355,10 @@
 	ncrcmd	bad_i_t_l_q	[  4];
 	ncrcmd	bad_target	[  8];
 	ncrcmd	bad_status	[  8];
-	ncrcmd	start_ram	[  4];
+	ncrcmd	start_ram	[  4 + PREFETCH_FLUSH_CNT];
 	ncrcmd	start_ram0	[  4];
 	ncrcmd	sto_restart	[  5];
+	ncrcmd	wait_dma	[  2];
 	ncrcmd	snooptest	[  9];
 	ncrcmd	snoopend	[  2];
 };
@@ -1328,6 +1384,7 @@
 static	void	ncr_getclock	(ncb_p np, int mult);
 static	void	ncr_selectclock	(ncb_p np, u_char scntl3);
 static	ccb_p	ncr_get_ccb	(ncb_p np, u_char tn, u_char ln);
+static  void	ncr_chip_reset	(ncb_p np, int delay);
 static	void	ncr_init	(ncb_p np, int reset, char * msg, u_long code);
 static	int	ncr_int_sbmc	(ncb_p np);
 static	int	ncr_int_par	(ncb_p np);
@@ -1527,6 +1584,10 @@
 		RADDR (dsa),
 		PADDR (loadpos),
 	/*
+	**	Flush script prefetch if required
+	*/
+	PREFETCH_FLUSH
+	/*
 	**	then we do the actual copy.
 	*/
 	SCR_COPY (sizeof (struct head)),
@@ -1827,6 +1888,10 @@
 	SCR_COPY_F (4),
 		RADDR (dsa),
 		PADDR (cleanup0),
+	/*
+	**	Flush script prefetch if required
+	*/
+	PREFETCH_FLUSH
 	SCR_COPY (sizeof (struct head)),
 		NADDR (header),
 }/*-------------------------< CLEANUP0 >--------------------*/,{
@@ -1856,8 +1921,13 @@
 	/*
 	**	... signal completion to the host
 	*/
+#ifdef SIMULATED_INTFLY
+	SCR_INT,
+		SIR_INTFLY,
+#else
 	SCR_INT_FLY,
 		0,
+#endif
 	/*
 	**	Auf zu neuen Schandtaten!
 	*/
@@ -1876,8 +1946,13 @@
 	SCR_INT,
 		SIR_DONE_OVERFLOW,
 }/*------------------------< DONE_END >---------------------*/,{
+#ifdef SIMULATED_INTFLY
+	SCR_INT,
+		SIR_INTFLY,
+#else
 	SCR_INT_FLY,
 		0,
+#endif
 	SCR_COPY (4),
 		RADDR (temp),
 		PADDR (done_pos),
@@ -2055,6 +2130,10 @@
 		RADDR (dsa),
 		PADDR (loadpos1),
 	/*
+	**	Flush script prefetch if required
+	*/
+	PREFETCH_FLUSH
+	/*
 	**	then we do the actual copy.
 	*/
 	SCR_COPY (sizeof (struct head)),
@@ -2116,6 +2195,10 @@
 	SCR_COPY_F (4),
 		RADDR (temp),
 		PADDR (nexus_indirect),
+	/*
+	**	Flush script prefetch if required
+	*/
+	PREFETCH_FLUSH
 	SCR_COPY (4),
 }/*-------------------------< NEXUS_INDIRECT >-------------------*/,{
 		0,
@@ -2272,6 +2355,10 @@
 		RADDR (dsa),
 		PADDRH (skip2),
 	/*
+	**	Flush script prefetch if required
+	*/
+	PREFETCH_FLUSH
+	/*
 	**	then we do the actual copy.
 	*/
 	SCR_COPY (sizeof (struct head)),
@@ -2782,6 +2869,10 @@
 	SCR_COPY_F (4),
 		RADDR (scratcha),
 		PADDRH (start_ram0),
+	/*
+	**	Flush script prefetch if required
+	*/
+	PREFETCH_FLUSH
 	SCR_COPY (sizeof (struct script)),
 }/*-------------------------< START_RAM0 >--------------------*/,{
 		0,
@@ -2799,6 +2890,17 @@
 		PADDR (startpos),
 	SCR_JUMP,
 		PADDR (start),
+}/*-------------------------< WAIT_DMA >-------------------*/,{
+	/*
+	**	For HP Zalon/53c720 systems, the Zalon interface
+	**	between CPU and 53c720 does prefetches, which causes
+	**	problems with self modifying scripts.  The problem
+	**	is overcome by calling a dummy subroutine after each
+	**	modification, to force a refetch of the script on
+	**	return from the subroutine.
+	*/
+	SCR_RETURN,
+		0,
 }/*-------------------------< SNOOPTEST >-------------------*/,{
 	/*
 	**	Read the variable.
@@ -3132,9 +3234,12 @@
 #define burst_length(bc) (!(bc))? 0 : 1 << (bc)
 
 /*
- *	Burst code from io register bits.
+ *	Burst code from io register bits.  Burst enable is ctest0 for c720,
+ *	ctest4 for others.
  */
-#define burst_code(dmode, ctest4, ctest5) \
+#define burst_code(dmode, ctest0, ctest4, ctest5) \
+	(np->device_id == PSEUDO_ZALON_720_ID) ? \
+	(ctest0) & 0x80? 0 : (((dmode) & 0xc0) >> 6) + 1 : \
 	(ctest4) & 0x80? 0 : (((dmode) & 0xc0) >> 6) + ((ctest5) & 0x04) + 1
 
 /*
@@ -3142,12 +3247,15 @@
  */
 static inline void ncr_init_burst(ncb_p np, u_char bc)
 {
-	np->rv_ctest4	&= ~0x80;
+	u_char *be = (np->device_id == PSEUDO_ZALON_720_ID) ?
+		&np->rv_ctest0 : &np->rv_ctest4;
+
+	*be		&= ~0x80;
 	np->rv_dmode	&= ~(0x3 << 6);
 	np->rv_ctest5	&= ~0x4;
 
 	if (!bc) {
-		np->rv_ctest4	|= 0x80;
+		*be		|= 0x80;
 	}
 	else {
 		--bc;
@@ -3224,6 +3332,7 @@
 	np->sv_scntl3	= INB(nc_scntl3) & 0x07;
 	np->sv_dmode	= INB(nc_dmode)  & 0xce;
 	np->sv_dcntl	= INB(nc_dcntl)  & 0xa8;
+	np->sv_ctest0	= INB(nc_ctest0) & 0x84;
 	np->sv_ctest3	= INB(nc_ctest3) & 0x01;
 	np->sv_ctest4	= INB(nc_ctest4) & 0x80;
 	np->sv_ctest5	= INB(nc_ctest5) & 0x24;
@@ -3310,10 +3419,11 @@
 	np->rv_scntl0	= np->sv_scntl0;
 	np->rv_dmode	= np->sv_dmode;
 	np->rv_dcntl	= np->sv_dcntl;
+	np->rv_ctest0	= np->sv_ctest0;
 	np->rv_ctest3	= np->sv_ctest3;
 	np->rv_ctest4	= np->sv_ctest4;
 	np->rv_ctest5	= np->sv_ctest5;
-	burst_max	= burst_code(np->sv_dmode, np->sv_ctest4, np->sv_ctest5);
+	burst_max	= burst_code(np->sv_dmode, np->sv_ctest0, np->sv_ctest4, np->sv_ctest5);
 #else
 
 	/*
@@ -3321,7 +3431,7 @@
 	*/
 	burst_max	= driver_setup.burst_max;
 	if (burst_max == 255)
-		burst_max = burst_code(np->sv_dmode, np->sv_ctest4, np->sv_ctest5);
+		burst_max = burst_code(np->sv_dmode, np->sv_ctest0, np->sv_ctest4, np->sv_ctest5);
 	if (burst_max > 7)
 		burst_max = 7;
 	if (burst_max > np->maxburst)
@@ -3344,6 +3454,12 @@
 		np->rv_ctest3	|= WRIE;	/* Write and Invalidate */
 	if (np->features & FE_DFS)
 		np->rv_ctest5	|= DFS;		/* Dma Fifo Size */
+	if (np->features & FE_MUX)
+		np->rv_ctest4	|= MUX;		/* Host bus multiplex mode */
+	if (np->features & FE_EA)
+		np->rv_dcntl	|= EA;		/* Enable ACK */
+	if (np->features & FE_EHP)
+		np->rv_ctest0	|= EHP;		/* Even host parity */
 
 	/*
 	**	Select some other
@@ -3523,6 +3639,7 @@
 	return 0;
 }
 
+
 /*
 **	Host attach and initialisations.
 **
@@ -3543,6 +3660,7 @@
 	ncr_nvram *nvram = device->nvram;
 	int i;
 
+#ifndef ENABLE_SCSI_ZALON
 	printk(KERN_INFO "ncr53c%s-%d: rev 0x%x on pci bus %d device %d function
%d "
 #ifdef __sparc__
 		"irq %s\n",
@@ -3557,6 +3675,7 @@
 #else
 		device->slot.irq);
 #endif
+#endif
 
 	/*
 	**	Allocate host_data structure
@@ -3645,7 +3764,6 @@
 	**	Now the INB INW INL OUTB OUTW OUTL macros
 	**	can be used safely.
 	*/
-
 	np->reg = (struct ncr_reg*) np->vaddr;
 
 #endif /* !defined SCSI_NCR_IOMAPPED */
@@ -3654,7 +3772,9 @@
 	**	Try to map the controller chip into iospace.
 	*/
 
+#ifndef ENABLE_SCSI_ZALON
 	request_region(device->slot.io_port, 128, "ncr53c8xx");
+#endif
 	np->base_io = device->slot.io_port;
 
 #ifdef SCSI_NCR_NVRAM_SUPPORT
@@ -3768,9 +3888,7 @@
 	**	Reset chip.
 	*/
 
-	OUTB (nc_istat,  SRST);
-	UDELAY (100);
-	OUTB (nc_istat,  0   );
+	ncr_chip_reset(np, 100);
 
 	/*
 	**	Now check the cache handling of the pci chipset.
@@ -3887,7 +4005,9 @@
 #ifdef DEBUG_NCR53C8XX
 		printk(KERN_DEBUG "%s: releasing IO region %x[%d]\n", ncr_name(np), np->base_io,
128);
 #endif
+#ifndef ENABLE_SCSI_ZALON
 		release_region(np->base_io, 128);
+#endif
 	}
 	if (np->irq) {
 #ifdef DEBUG_NCR53C8XX
@@ -3912,7 +4032,7 @@
 	scsi_unregister(instance);
 
         return -1;
- }
+}
 
 
 /*==========================================================
@@ -4699,9 +4819,7 @@
 			"command processing suspended for %d seconds\n",
 			ncr_name(np), settle_delay);
 
-	OUTB (nc_istat, SRST);
-	UDELAY (100);
-	OUTB (nc_istat, 0);
+	ncr_chip_reset(np, 100);
 	UDELAY (2000);	/* The 895 needs time for the bus mode to settle */
 	if (enab_int)
 		OUTW (nc_sien, RST);
@@ -4710,7 +4828,8 @@
 	**	properly set IRQ mode, prior to resetting the bus.
 	*/
 	OUTB (nc_stest3, TE);
-	OUTB (nc_dcntl, (np->rv_dcntl & IRQM));
+	if (np->device_id != PSEUDO_ZALON_720_ID)
+		OUTB (nc_dcntl, (np->rv_dcntl & IRQM));
 	OUTB (nc_scntl1, CRST);
 	UDELAY (200);
 
@@ -4917,6 +5036,10 @@
 	lcb_p lp;
 	int target, lun;
 	int i;
+	char inst_name[16];
+
+	/* Local copy so we don't access np after freeing it! */
+	strncpy(inst_name, ncr_name(np), 16);
 
 	printk("%s: releasing host resources\n", ncr_name(np));
 
@@ -4963,12 +5086,11 @@
 	*/
 
 	printk("%s: resetting chip\n", ncr_name(np));
-	OUTB (nc_istat,  SRST);
-	UDELAY (100);
-	OUTB (nc_istat,  0   );
+	ncr_chip_reset(np, 100);
 
 	OUTB(nc_dmode,	np->sv_dmode);
 	OUTB(nc_dcntl,	np->sv_dcntl);
+	OUTB(nc_ctest0,	np->sv_ctest0);
 	OUTB(nc_ctest3,	np->sv_ctest3);
 	OUTB(nc_ctest4,	np->sv_ctest4);
 	OUTB(nc_ctest5,	np->sv_ctest5);
@@ -4991,7 +5113,9 @@
 #ifdef DEBUG_NCR53C8XX
 	printk("%s: releasing IO region %x[%d]\n", ncr_name(np), np->base_io, 128);
 #endif
+#ifndef ENABLE_SCSI_ZALON
 	release_region(np->base_io, 128);
+#endif
 
 	/*
 	**	Free allocated ccb(s)
@@ -5036,7 +5160,7 @@
 		m_free_dma(np->ccb, sizeof(struct ccb), "CCB");
 	m_free_dma(np, sizeof(struct ncb), "NCB");
 
-	printk("%s: host resources successfully released\n", ncr_name(np));
+	printk("%s: host resources successfully released\n", inst_name);
 
 	return 1;
 }
@@ -5061,7 +5185,6 @@
 	/*
 	**	Sanity check
 	*/
-
 	if (!cp || cp->magic != CCB_MAGIC || !cp->cmd)
 		return;
 
@@ -5428,6 +5551,28 @@
 	}
 }
 
+/*
+** Reset ncr chip.
+*/
+
+/* Some initialisation must be done immediately following reset, for 53c720,
+ * at least.  EA (dcntl bit 5) isn't set here as it is set once only in
+ * the _detect function.
+ */
+
+static void ncr_chip_reset(ncb_p np, int delay)
+{
+	OUTB (nc_istat,  SRST);
+	UDELAY (delay);
+	OUTB (nc_istat,  0   );
+
+	if (np->features & FE_EHP)
+		OUTB (nc_ctest0, EHP);
+	if (np->features & FE_MUX)
+		OUTB (nc_ctest4, MUX);
+}
+
+
 /*==========================================================
 **
 **
@@ -5473,7 +5618,7 @@
 	*/
 	np->squeueput = 0;
 	np->script0->startpos[0] = cpu_to_scr(NCB_SCRIPTH_PHYS (np, tryloop));
-
+#ifdef SCSI_NCR_CCB_DONE_SUPPORT
 	/*
 	**	Clear Done Queue
 	*/
@@ -5490,7 +5635,7 @@
 	np->ccb_done_ic = MAX_DONE-1;
 	np->scripth0->done_queue[5*(MAX_DONE-1) + 4] =
 			cpu_to_scr(NCB_SCRIPT_PHYS (np, done_plug));
-
+#endif
 	/*
 	**	Wakeup all pending jobs.
 	*/
@@ -5500,8 +5645,10 @@
 	**	Init chip.
 	*/
 
-	OUTB (nc_istat,  0x00   );	/*  Remove Reset, abort */
-	UDELAY (2000);	/* The 895 needs time for the bus mode to settle */
+	/* Remove reset; big delay because the 895 needs time for the
+	 * bus mode to settle
+	 */
+	ncr_chip_reset(np, 2000);
 
 	OUTB (nc_scntl0, np->rv_scntl0 | 0xc0);
 					/*  full arb., ena parity, par->ATN  */
@@ -5516,6 +5663,7 @@
 	OUTB (nc_ctest5, np->rv_ctest5);	/* Large fifo + large burst */
 
 	OUTB (nc_dcntl , NOCOM|np->rv_dcntl);	/* Protect SFBR */
+	OUTB (nc_ctest0, np->rv_ctest0);	/* 720: CDIS and EHP */
 	OUTB (nc_ctest3, np->rv_ctest3);	/* Write and invalidate */
 	OUTB (nc_ctest4, np->rv_ctest4);	/* Master parity checking */
 
@@ -7100,6 +7248,18 @@
 	if (DEBUG_FLAGS & DEBUG_TINY) printk ("I#%d", num);
 
 	switch (num) {
+	case SIR_INTFLY:
+		/*
+		**	This is used for HP Zalon/53c720 where INTFLY
+		**	operation is currently broken.
+		*/
+		ncr_wakeup_done(np);
+#ifdef SCSI_NCR_CCB_DONE_SUPPORT
+		OUTL(nc_dsp, NCB_SCRIPT_PHYS (np, done_end) + 8);
+#else
+		OUTL(nc_dsp, NCB_SCRIPT_PHYS (np, start));
+#endif
+		return;
 	case SIR_RESEL_NO_MSG_IN:
 	case SIR_RESEL_NO_IDENTIFY:
 		/*
@@ -7846,7 +8006,11 @@
 	*/
 	tp->getscr[0] =	cpu_to_scr(copy_1);
 	tp->getscr[1] = cpu_to_scr(vtobus (&tp->sval));
+#ifdef SCSI_NCR_BIG_ENDIAN
+	tp->getscr[2] = cpu_to_scr(ncr_reg_bus_addr(nc_sxfer) ^ 3);
+#else
 	tp->getscr[2] = cpu_to_scr(ncr_reg_bus_addr(nc_sxfer));
+#endif
   
 	/*
 	**	Load the timing register.
@@ -7854,7 +8018,11 @@
 	*/
 	tp->getscr[3] =	cpu_to_scr(copy_1);
 	tp->getscr[4] = cpu_to_scr(vtobus (&tp->wval));
+#ifdef SCSI_NCR_BIG_ENDIAN
+	tp->getscr[5] = cpu_to_scr(ncr_reg_bus_addr(nc_scntl3) ^ 3);
+#else
 	tp->getscr[5] = cpu_to_scr(ncr_reg_bus_addr(nc_scntl3));
+#endif
 
 	/*
 	**	Get the IDENTIFY message and the lun.
@@ -7883,10 +8051,17 @@
 	/*
 	**	These assert's should be moved at driver initialisations.
 	*/
+#ifdef SCSI_NCR_BIG_ENDIAN
+	assert (( (offsetof(struct ncr_reg, nc_sxfer) ^
+		offsetof(struct tcb    , sval    )) &3) == 3);
+	assert (( (offsetof(struct ncr_reg, nc_scntl3) ^
+		offsetof(struct tcb    , wval    )) &3) == 3);
+#else
 	assert (( (offsetof(struct ncr_reg, nc_sxfer) ^
 		offsetof(struct tcb    , sval    )) &3) == 0);
 	assert (( (offsetof(struct ncr_reg, nc_scntl3) ^
 		offsetof(struct tcb    , wval    )) &3) == 0);
+#endif
 }
 
 
@@ -8230,9 +8405,7 @@
 	/*
 	**	Reset ncr chip
 	*/
-	OUTB (nc_istat,  SRST);
-	UDELAY (100);
-	OUTB (nc_istat,  0   );
+	ncr_chip_reset(np, 100);
 	/*
 	**	check for timeout
 	*/
@@ -8459,7 +8632,7 @@
 	if (np->multiplier != mult || (scntl3 & 7) < 3 || !(scntl3 & 1)) {
 		unsigned f2;
 
-		OUTB(nc_istat, SRST); UDELAY (5); OUTB(nc_istat, 0);
+		ncr_chip_reset(np, 5);
 
 		(void) ncrgetfreq (np, 11);	/* throw away first result */
 		f1 = ncrgetfreq (np, 11);
@@ -9210,6 +9383,7 @@
 */
 
 static u_short	ncr_chip_ids[]   __initdata = {
+	PSEUDO_ZALON_720_ID,
 	PCI_DEVICE_ID_NCR_53C810,
 	PCI_DEVICE_ID_NCR_53C815,
 	PCI_DEVICE_ID_NCR_53C820,
@@ -9224,6 +9398,89 @@
 	PCI_DEVICE_ID_NCR_53C1510D
 };
 
+#ifdef ENABLE_SCSI_ZALON
+/*
+**	Attach a 53c720 interfaced via Zalon chip on HP boxes.  
+*/
+
+int
+zalon_attach(Scsi_Host_Template *tpnt, unsigned long io_port, 
+	     struct parisc_device *dev, int irq, int unit)
+{
+	u_short device_id;
+	u_char revision;
+	int i;
+	ncr_chip *chip;
+	ncr_device device;
+
+	tpnt->proc_name = NAME53C8XX;
+	tpnt->proc_info = ncr53c8xx_proc_info;
+
+#if	defined(SCSI_NCR_BOOT_COMMAND_LINE_SUPPORT) && defined(MODULE)
+	if (ncr53c8xx)
+		ncr53c8xx_setup(ncr53c8xx);
+#endif
+
+#ifdef SCSI_NCR_DEBUG_INFO_SUPPORT
+	ncr_debug = driver_setup.debug;
+#endif
+	if (initverbose >= 2)
+		ncr_print_driver_setup();
+
+	memset(&device, 0, sizeof(ncr_device));
+	chip = 0;
+	device_id = PSEUDO_ZALON_720_ID;
+	revision = 0;
+	for (i = 0; i < sizeof(ncr_chip_table)/sizeof(ncr_chip_table[0]); i++)
{
+		if (device_id != ncr_chip_table[i].device_id)
+			continue;
+		chip = &device.chip;
+		memcpy(chip, &ncr_chip_table[i], sizeof(*chip));
+		chip->revision_id = revision;
+		break;
+	}
+
+	if (!chip) {
+		printk(NAME53C8XX ": not initializing, device not supported\n");
+		return -1;
+	}
+
+	/*
+	**    Fix some features according to driver setup.
+	*/
+
+	driver_setup.diff_support = 2;
+
+	/*
+	**    The following three are needed before any other access.
+	*/
+
+	writeb(0x20, io_port + 0x38); /* DCNTL_REG,  EA  */
+	writeb(0x04, io_port + 0x1b); /* CTEST0_REG, EHP */
+	writeb(0x80, io_port + 0x22); /* CTEST4_REG, MUX */
+
+ 	/*
+	**    Initialise ncr_device structure with items required by ncr_attach.
+	*/
+	device.host_id		= driver_setup.host_id;
+	device.pdev		= ccio_get_fake(dev);
+	device.slot.bus		= 0;
+	device.slot.device_fn	= 0;
+	device.slot.base	= (u_long)io_port;
+	device.slot.base_c	= (u_long)io_port;
+	device.slot.base_2	= 0;
+	device.slot.base_2_c	= 0;
+	device.slot.io_port	= io_port;
+	device.slot.irq		= irq;
+	device.attach_done	= 0;
+
+	printk(KERN_INFO NAME53C8XX ": 53c%s detected\n", device.chip.name);
+
+	return ncr_attach(tpnt, unit, &device);
+}
+#endif
+
+
 /*==========================================================
 **
 **	Chip detection entry point.
@@ -9273,6 +9530,10 @@
 static
 #endif
 #if LINUX_VERSION_CODE >= LinuxVersionCode(2,4,0) || defined(MODULE)
+#ifdef ENABLE_SCSI_ZALON
+Scsi_Host_Template driver_template = SCSI_ZALON;
+#else
 Scsi_Host_Template driver_template = NCR53C8XX;
+#endif
 #include "scsi_module.c"
 #endif
diff -NaurX dontdiff linux-2.4.21-pre7/drivers/scsi/Config.in linux-2.4.21-pre7-pa3x/drivers/scsi/Config.in
--- linux-2.4.21-pre7/drivers/scsi/Config.in	2003-03-27 19:43:50.000000000
+0100
+++ linux-2.4.21-pre7-pa3x/drivers/scsi/Config.in	2003-04-11 11:18:42.000000000
+0200
@@ -145,27 +145,46 @@
       bool '  use normal IO' CONFIG_SCSI_SYM53C8XX_IOMAPPED
    fi
 fi
+define_bool CONFIG_ASK_ZALON n
+define_bool CONFIG_ASK_NCR53C8XX n
+define_bool CONFIG_ASK_SYM53C8XX n
+if [ "$CONFIG_PARISC" = "y" ]; then
+   dep_tristate 'Zalon SCSI support' CONFIG_SCSI_ZALON $CONFIG_GSC $CONFIG_SCSI
+   if [ "$CONFIG_SCSI_ZALON" != "n" ]; then
+      define_bool CONFIG_ASK_ZALON y
+   fi
+else
+  if [ "$CONFIG_PCI" = "y" -a "$CONFIG_SCSI_SYM53C8XX_2" != "y" ]; then
+     dep_tristate 'NCR53C8XX SCSI support' CONFIG_SCSI_NCR53C8XX $CONFIG_SCSI
+     if [ "$CONFIG_SCSI_NCR53C8XX" != "n" ]; then
+        define_bool CONFIG_ASK_NCR53C8XX y
+     fi
+  fi
+fi
 if [ "$CONFIG_PCI" = "y" -a "$CONFIG_SCSI_SYM53C8XX_2" != "y" ]; then
-   dep_tristate 'NCR53C8XX SCSI support' CONFIG_SCSI_NCR53C8XX $CONFIG_SCSI
    dep_tristate 'SYM53C8XX SCSI support' CONFIG_SCSI_SYM53C8XX $CONFIG_SCSI
-   if [ "$CONFIG_PARISC" = "y" ]; then
-      dep_tristate 'Zalon SCSI support' CONFIG_SCSI_ZALON $CONFIG_GSC $CONFIG_SCSI
+   if [ "$CONFIG_SCSI_SYM53C8XX" != "n" ]; then
+      define_bool CONFIG_ASK_SYM53C8XX y
    fi
-   if [ "$CONFIG_SCSI_NCR53C8XX" != "n" -o "$CONFIG_SCSI_ZALON" = "y" -o
"$CONFIG_SCSI_ZALON" = "m" -o "$CONFIG_SCSI_SYM53C8XX" != "n" ]; then
-      int  '  default tagged command queue depth' CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS
8
-      int  '  maximum number of queued commands' CONFIG_SCSI_NCR53C8XX_MAX_TAGS
32
-      int  '  synchronous transfers frequency in MHz' CONFIG_SCSI_NCR53C8XX_SYNC
20
-      bool '  enable profiling' CONFIG_SCSI_NCR53C8XX_PROFILE
+fi
+if [ "$CONFIG_ASK_ZALON" = "y" -o "$CONFIG_ASK_NCR53C8XX" = "y" -o "$CONFIG_ASK_SYM53C8XX"
= "y" ]; then
+   int  '  default tagged command queue depth' CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS
8
+   int  '  maximum number of queued commands' CONFIG_SCSI_NCR53C8XX_MAX_TAGS
32
+   int  '  synchronous transfers frequency in MHz' CONFIG_SCSI_NCR53C8XX_SYNC
20
+   bool '  enable profiling' CONFIG_SCSI_NCR53C8XX_PROFILE
+   if [ "$CONFIG_ASK_ZALON" = "y" ]; then
+      define_bool CONFIG_SCSI_NCR53C8XX_IOMAPPED n
+   else
       bool '  use normal IO' CONFIG_SCSI_NCR53C8XX_IOMAPPED
-      if [ "$CONFIG_SCSI_SYM53C8XX" != "n" ]; then
-	 bool '  include support for the NCR PQS/PDS SCSI card' CONFIG_SCSI_NCR53C8XX_PQS_PDS
-      fi
-      if [ "$CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS" = "0" ]; then
-	 bool '  not allow targets to disconnect' CONFIG_SCSI_NCR53C8XX_NO_DISCONNECT
-      fi
-      if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
-	 bool '  assume boards are SYMBIOS compatible (EXPERIMENTAL)' CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT
-      fi
+   fi
+   if [ "$CONFIG_ASK_SYM53C8XX" = "y" ]; then
+      bool '  include support for the NCR PQS/PDS SCSI card' CONFIG_SCSI_NCR53C8XX_PQS_PDS
+   fi
+   if [ "$CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS" = "0" ]; then
+      bool '  not allow targets to disconnect' CONFIG_SCSI_NCR53C8XX_NO_DISCONNECT
+   fi
+   if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
+      bool '  assume boards are SYMBIOS compatible (EXPERIMENTAL)' CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT
    fi
 fi
 if [ "$CONFIG_MCA" = "y" ]; then


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>
>On Llu, 2003-04-14 at 13:13, Joel Soete wrote:
>> +#if defined(__hppa__) && defined(CONFIG_SUPERIO)
>> +#include <asm/superio.h>
>> +#endif
>> +
>
>Please keep superio out of generic drivers
>
>
>>  	if (!using_inta)
>> +#if defined(__hppa__) && defined(CONFIG_SUPERIO)
>> +		hwif->irq = superio_get_ide_irq();	/* legacy mode */
>> +#else
>>  		hwif->irq = hwif->channel ? 15 : 14;	/* legacy mode */
>> +#endif
>>  	else if (!hwif->irq && hwif->mate && hwif->mate->irq)
>>  		hwif->irq = hwif->mate->irq;	/* share IRQ with mate */
>
>Ughh. Ok this needs tackling in a more general way. get_legacy_irq(0/1)
>perhaps. This isnt the only port we need to sort out.
>
>Ok suppose you added superio.h to include/asm-parisc/ide.h and added
>ide_get_legacy(int n) [n=0/1] for interfaces. I can do the same for the
>other ports (return 14+n) and it will stay clean in 2.4 and 2.5
>

> 
>>  	     (dev->class & 0x80))) {
>> -		unsigned long dma_base = ide_get_or_set_dma_base(hwif);
>> +		u32 dma_base = ide_get_or_set_dma_base(hwif);
>
>Thats reverting a fix. dma_base must be unsigned long for 64bit
>platforms. Looks just like a merge error.

Sorry note a merge error but well a revert because I encounter a problem
in a previous merge. I have to review,

Thanks for advises,
    Joel



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On Mon, Apr 14, 2003 at 12:13:24PM +0000, Joel Soete wrote:
> To: "Grant Grundler" <grundler@parisc-linux.org>
> Cc: parisc-linux@lists.parisc-linux.org   

> Hi Andre,
[snip]

Maybe you should add him to the To: or Cc: fields? :)

-- 
Michael Wood <mwood@its.uct.ac.za>


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>>>  	     (dev->class & 0x80))) {
>>> -		unsigned long dma_base = ide_get_or_set_dma_base(hwif);
>>> +		u32 dma_base = ide_get_or_set_dma_base(hwif);
>>
>>Thats reverting a fix. dma_base must be unsigned long for 64bit
>>platforms. Looks just like a merge error.
>
hmm I just re-compile with "unsigned long dma_base" and it works (I mount
a cd on the ide cdrom drive and launch a find of file without any system
crash :) )

Thanks again,
    Joel


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Hi PA,

I'm trying to install Debian on my (recently purchased) Precisionbook
(256MB RAM, 4 GB hard disk, Visualize-EG, basically a B160 as a laptop;
 no serial console possible due to missing adapter cable).

I using the net-install CD from EISEE
(palinux-2.4.20-pa32-20030322-netinst.iso). It boots up (identifies the
system correctly as a model 9000/778/B160L) and stops/hangs at the
following line (at least it passes the 'Branching to kernel entry point'
message):

[...]
LED display at f0190001 registered
Kernel command line: ramdisk_size=8192 root=/dev/ram console=tty0 sti=8/24
 sti_font=VGA8x16 TERM=linux palo_kernel=0/vmlinux
Console: colour dummy device 160x64

I waited for 30mins, but nothing else happened. Is there a known problem
with this particular kernel/ISO-image? Any hints what I can try out to
succeed installing/boot Linux on the machine?

Thanks, max



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Subject: Re: [parisc-linux] installation problems on RDI Precisionbook
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On Mon, 14 Apr 2003, M. Grabert wrote:

> Hi PA,
>
> I using the net-install CD from EISEE
> (palinux-2.4.20-pa32-20030322-netinst.iso). It boots up (identifies the
> system correctly as a model 9000/778/B160L) and stops/hangs at the
> following line (at least it passes the 'Branching to kernel entry point'
> message):
>
> [...]
> LED display at f0190001 registered
> Kernel command line: ramdisk_size=8192 root=/dev/ram console=tty0 sti=8/24
>  sti_font=VGA8x16 TERM=linux palo_kernel=0/vmlinux
> Console: colour dummy device 160x64

(this error occurs when the internal LCD monitor (1024x768) is used).

A work-around:

I'm using now an external monitor (1280x1024), and it seems to work now.
However I also want to be able to use the LCD screen of the laptop if
possible ...


Thanks, Max




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Stan Sieler schrieb:

>Re:
>
>(Note: if anyone has a Tadpole/RDI PrecisionBook manual/documentation-set,
>I'd be real interested in asking them a couple of questions!)
>  
>
Are you looking still for the documentation?  Try this one: 
http://www.openpa.net/systems/pbook.html

Greets, Rdiger



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Re:

> >(Note: if anyone has a Tadpole/RDI PrecisionBook manual/documentation-set,

> Are you looking still for the documentation?  Try this one: 
> http://www.openpa.net/systems/pbook.html

thanks...it has some great PDF files that I didn't find anywhere
else: the user guide (70+ pages) and a "hardware manual" (140+ pages).
 
-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com


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From: Alexander Gabert <pappy@nikita.ath.cx>
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Subject: [parisc-linux] 199f on parisc (now it is ready to go :-)
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Xref: news.gmane.org gmane.linux.ports.parisc:18252

hi,

with the great help from the pageexec folks, we are now able to set up our debian
hppa parisc boxes with a very cool security patch!

grsecurity with PaX delivers the first working security hardened kernel
plus effective acl system with userland restrictions to parisc-linux.

currently, you will be able to find the parisc-only patch at:
http://nikita.ath.cx/users/pappy/grsec/199f_parisc_only_PaX/

the README shortly explains, what it is all about.

play with it, play with it, play with it, tell me what you think of it.

Brad, could you please try to merge the technical changes into your sources?
or would this be counterproductive, regarding the "difference" the parisc-linux kernel makes?
i know, that currently we are in split-brain mode regarding parisc-linux
kernel sources.  but i really hope, we get together at 2.5.* :-)

i can send the patch to you per mail also.

Dear Debian-Hppa developers,

http://pageexec.virtualave.net/docs/randmmap.txt and the other documents
require "full" ET_DYN support for elf binary executables in the system
plus some "minor" gcc patching to get the stuff going :-)

is it possible to "phase in" a secure debian-hppa distribution,
something like Debian Trusted already tries to achieve?
we could have a separate "security-oriented" gcc, library and binary packages there.

we need the following for random mmap and the advanced features to work:
(excerpt from pageexec et_dyn/README)
   Compilation has to be modified in order to produce position independent
   code (PIC) which in turn allows the linker to not emit so-called text
   relocations in the final ET_DYN ELF file.

this has to be done on as much as binaries and libraries.

i can do it on my own.  but i want it to be addressed in debian.
we can call up for a "debian-hppa-trusted" for example :-)

there is also work that needs to be done on the glibc on parisc to better support the PaX features.
more details if someone feels addressed and answers :-)


I now personally want to thank the PaX team for doing this brilliant, open, portable work in
creating a security solution for the platform independent linux kernel.
i appreciate working together with you and will definitely stay in
contact with you.

David: You can mention this in your article, if it is not yet finished and being printed ;-)


have a nice week,

see you,


Alex
-- 
"... an experienced, industrious, ambitious, and often quite often
picturesque liar."
                -- Mark Twain

pub  1024/05E1A80C 2001/12/16 Alexander Gabert (http://nikita.ath.cx) <pappy@nikita.ath.cx>
          Key fingerprint =  2D 84 B0 CB F5 67 8A 22  8D 37 6E 6B 8A 3B 7F D6  05 E1 A8 0C


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DO NOT cc the grsecurity mailing list when sending mail to
parisc-linux.org.  continue to do so and i will remove you from the list.

On Mon, Apr 14, 2003 at 09:05:33PM +0200, Alexander Gabert wrote:
> hi,
> 
> with the great help from the pageexec folks, we are now able to set up our debian
> hppa parisc boxes with a very cool security patch!

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] another profile (2.5.67-pa3)
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Hi,      =20
      =20
I just did a profile of a gcc33 compiled 2.5.67-pa3. I sometimes had the i=
mpression,     =20
that especially shell scripts run very slow on parisc. What I did, was bui=
lding a howto     =20
package, where several keywords are searched with grep -v in all howtos. =20
     =20
user  :       0:01:11.25   0.4%  page in :        0     =20
nice  :       1:24:24.96  25.0%  page out:        0     =20
system:       4:02:17.73  71.8%  swap in :        0     =20
idle  :       0:09:00.58   2.7%  swap out:        0     =20
uptime:       5:37:28.50         context :  3593391     =20
     =20
procinfo also shows another problem with page counts, but more interesting=
 is, that the     =20
system (from a freshly booted system) needed lots of system time to build =
that package,     =20
and not so much nice time. The total build time was   =20
   =20
built howto in 17650 s   =20
compared to   =20
built howto in 23414 s  =20
with kernel 2.4.19  =20
 =20
The Kernel command line: profile=3D2 root=3D/dev/sda3 HOME=3D/ console=3DttyS0 TER=
M=3Dvt102 =20
Here is the profile:     =20
# readprofile -m /boot/System.map-2.5.67 | sort -nr -k3 | head -20        =
                    =20
478488 fisync                                   39874.0000     =20
358656 fdsync                                   17932.8000     =20
120353 fioneloop                                15044.1250     =20
 73159 flush=5Fuser=5Fdcache=5Frange=5Fasm              2032.1944     =20
 61150 flush=5Fuser=5Ficache=5Frange=5Fasm              1698.6111     =20
 57005 cpu=5Fidle                                 950.0833     =20
  7926 $lcfu=5Fdone                               660.5000     =20
  9494 $lctu=5Fdone                               593.3750     =20
  6359 $lctu=5Floop                               529.9167     =20
 38952 fprob                                    512.5263     =20
  2584 $lcfu=5Floop                               215.3333     =20
 31317 copy=5Fuser=5Fpage=5Fasm                       206.0329     =20
 18180 flush=5Fkernel=5Fdcache=5Fpage                 181.8000     =20
  9414 flush=5Fkernel=5Ficache=5Fpage                  94.1400     =20
   725 $lslen=5Fdone                               90.6250     =20
  1119 $lclu=5Fdone                                69.9375     =20
 24429 page=5Fremove=5Frmap                          57.0771     =20
   608 $lslen=5Floop                               50.6667     =20
  2091 memcpy                                    47.5227     =20
 19734 zap=5Fpte=5Frange                             37.6603     =20
     =20
The machine I used is a C240 with 1.5GiB Memory.=20
=20
Berthold=20
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F
UNICEF bittet um Spenden f=FCr die Kinder im Irak! Hier online an
UNICEF spenden: https://spenden.web.de/unicef/special/=3Fmc=3D021101



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Xref: news.gmane.org gmane.linux.ports.parisc:18255

Alan,

I just start to have a look (very busy right now)

>On Llu, 2003-04-14 at 13:13, Joel Soete wrote:
>> +#if defined(__hppa__) && defined(CONFIG_SUPERIO)
>> +#include <asm/superio.h>
>> +#endif
>> +
>
>Please keep superio out of generic drivers
>
>
>>  	if (!using_inta)
>> +#if defined(__hppa__) && defined(CONFIG_SUPERIO)
>> +		hwif->irq = superio_get_ide_irq();	/* legacy mode */
>> +#else
>>  		hwif->irq = hwif->channel ? 15 : 14;	/* legacy mode */
>> +#endif
>>  	else if (!hwif->irq && hwif->mate && hwif->mate->irq)
>>  		hwif->irq = hwif->mate->irq;	/* share IRQ with mate */
>
>Ughh. Ok this needs tackling in a more general way. get_legacy_irq(0/1)
>perhaps. This isnt the only port we need to sort out.
>
>Ok suppose you added superio.h to include/asm-parisc/ide.h

That is already done :)

> and added
>ide_get_legacy(int n) [n=0/1] for interfaces.

And so I still have to add 
#if defined(CONFIG_SUPERIO)
#    define ide_get_legacy(x) superio_get_ide_irq()
#else
#    define ide_get_legacy(x) ... (still have to find what)
#endif

and so change in drivers/ide/pci/ns87415.c

    hwif->irq = ide_get_legacy();	/* legacy mode */

Well in fact I do not yet well understand (less experience :( ) how do you
foreseen to manage this stuff for other platform?

thanks in advance for your understand.

By the way, in drivers/char/serial.c, also related to 'superio', i noticed:

#ifdef CONFIG_SUPERIO
    superio_serial_init();
#endif

Here I don't see how could it be kept out of generic drivers. Any idea?

Joel

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> By the way, in drivers/char/serial.c, also related to 'superio', i noticed:
> 
> #ifdef CONFIG_SUPERIO
>     superio_serial_init();
> #endif

this probably should not go upstream.. it's a hack so we can get early
console (and is stlil broken on 2.5 :-( )

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Tue, Apr 15, 2003 at 09:41:39AM -0700, Randolph Chung wrote:
> > By the way, in drivers/char/serial.c, also related to 'superio', i noticed:
> > 
> > #ifdef CONFIG_SUPERIO
> >     superio_serial_init();
> > #endif
> 
> this probably should not go upstream.. it's a hack so we can get early
> console (and is stlil broken on 2.5 :-( )

agreed.  the drivers/ stuff is much less interesting than getting
arch/parisc and include/asm-parisc more uptodate in marcelo's tree.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Maw, 2003-04-15 at 17:32, Joel Soete wrote:

> >ide_get_legacy(int n) [n=0/1] for interfaces.
> 
> And so I still have to add 
> #if defined(CONFIG_SUPERIO)
> #    define ide_get_legacy(x) superio_get_ide_irq()
> #else
> #    define ide_get_legacy(x) ... (still have to find what)
> #endif

What do you need to know if the legacy irq is to come from superio.
Should be we be asking ide_get_legacy(struct pci_device *pdev) ?

I just want to understand this so I (or you) do it right



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>> 
>> this probably should not go upstream.. it's a hack so we can get early
>> console (and is stlil broken on 2.5 :-( )
>
>agreed.  the drivers/ stuff is much less interesting than getting
>arch/parisc and include/asm-parisc more uptodate in marcelo's tree.
>
That is Ok for me. I will so try to spend more time on this aspect.

Thanks,
    Joel


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From - Thu Nov 08 21:27:32 2018
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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: Re: [parisc-linux] parisc-linux.org kernel
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>-- Original Message --
>Subject: Re: [parisc-linux] parisc-linux.org kernel
>From: Alan Cox <alan@lxorguk.ukuu.org.uk>
>To: Joel Soete <jsoe0708@tiscali.be>
>Cc: Grant Grundler <grundler@parisc-linux.org>,
>	parisc-linux@lists.parisc-linux.org
>Date: 15 Apr 2003 16:54:32 +0100
>
>
>On Maw, 2003-04-15 at 17:32, Joel Soete wrote:
>
>> >ide_get_legacy(int n) [n=0/1] for interfaces.
>>
>> And so I still have to add
>> #if defined(CONFIG_SUPERIO)
>> #    define ide_get_legacy(x) superio_get_ide_irq()
>> #else
>> #    define ide_get_legacy(x) ... (still have to find what)

well: clearer this morning, it would just have to become
#    define ide_get_legacy((x)) (x)?15:14

>> #endif
>
>What do you need to know if the legacy irq is to come from superio.

If I well understand the question: nothing because superio_get_ide_irq()
is defined in arch/parisc/kernel/superio.c as:
...
int
superio_get_ide_irq(void)
{
        if (sio_dev.irq_region)
                return sio_dev.irq_region->data.irqbase + IDE_IRQ;
        else
                return 0;
}

sio_dev being a global var:
...
static struct superio_device sio_dev = {
        iosapic_irq: -1
};

which is define in include/asm-parisc/superio.h as:
...
struct superio_device {
        u16 fdc_base;
        u16 sp1_base;
        u16 sp2_base;
        u16 pp_base;
        u16 acpi_base;
        int iosapic_irq;
        int iosapic_irq_enabled;
        struct irq_region *irq_region;
        struct pci_dev *lio_pdev;       /* pci device for legacy IO fn */
};
...

>Should be we be asking ide_get_legacy(struct pci_device *pdev) ?

IMHO it would be difficult this way; what do you thing?

>
>I just want to understand this so I (or you) do it right
>
You have certainly more experience and a broader view (over different platform)
than I (up to you)

Is this actually help?

Joel



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From - Thu Nov 08 21:27:32 2018
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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To: Joel Soete <jsoe0708@tiscali.be>
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On Mer, 2003-04-16 at 11:13, Joel Soete wrote:
> If I well understand the question: nothing because superio_get_ide_irq()
> is defined in arch/parisc/kernel/superio.c as:
> >Should be we be asking ide_get_legacy(struct pci_device *pdev) ?
> 
> IMHO it would be difficult this way; what do you thing?

Ok so some people need to know the device, some the legacy (0/1) and
some nothing at all. I guess I pass both 8)




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From: "M. Grabert" <xam@cs.ucc.ie>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Presicionbook success
Date: Wed, 16 Apr 2003 13:07:06 +0100 (IST)
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Hi,

I just wanted you to inform that I successfully installed
Debian testing on my Presicionbook.

However there are still some glitches:

- Internal LCD display not supported (properly)

  If you want to install Debian on a Presicionbook you have to use
  an external monitor and choose the "external VESA" modes - e.g.
  "1280x1024x8 75Hz VESA external" - the ONLY modes that worked for me.

  The "1024x768 62Hz RCILCD (internal)" doesn't work for me, ie. it
  doesn't switch to the stifb mode and it stops to display anything right
  after "Branching to kernel entry point" ... however the systems boots
  up and I can remote login (using my custom kernel)! Using the ESIEE
  kernel (also a 2.4.20-pa32) I was even able to see some kernel messages
  BEFORE it tried to switch to stifb; at least there was no tux on the
  screen (see my last posts), but seemed to hang then.

  BTW, there is some confusing info about the LCD screen;
  apparently it supports 256k colours (thousands!), but I doen't know
  whether it automatically converts 24bit pictures into 256k or
  whether you need to use a special video mode to be able use the 256k
  colours.

  The graphic card is an Visualize-EG, which can be updated with
  additional RAM (so you're able to display resolutions up to
  1600x1200 and having 1280x1024 in (true?) colour). I don't know
  how many memory my one has, but it's supposed to support
  1024x768 in true colour (so at least 3MB)

- PS/2 laptop keyboard

  The Presicionbook uses a 97-key keyboard. You can also attach an
  external PS/2 keyboard.

  The internal keyboard seems to work now - however it wouldn't work
  properly during the debian installation! I had to attach an external
  PS/2 keyboard to be able to use the debian-installer, since TAB, ESC and
  the ARROW-Keys didn't work using the laptop keyboard.

  Strangely enough it works perfectly now (for all other applications),
  maybe because it's just the debian-installer or maybe because I
  recompiled the kernel?!

- PS/2 laptop touchpad

  Had problems getting it to work at first.
  You have to use gpm and use the 'broken PS/2' mouse driver, e.g.

  gpm -t fups2 -m /dev/psaux -3 -Rms3

  (-Rms3 enables the repeater mode, so that you can use the mouse within
   XFree86. Choose '/dev/gpmdata' and 'IntelliMouse' as the mouse device
   and mouse type in XF86Config)

  You also need this configuration if you want to use an external PS/2
  mouse (even an external ImPS/2 Scrollwheel mouse in my example)

- The precompiled kernel from the EISEE team may hang ...

  ... since it has support for the CMD PCI0643 IDE Busmaster chip,
  which is obviously used in the Presicionbook, but the driver
  doensn't/mustn't be used in Linux, since it causes confusion!
  So add "ide=nodma" or something similar to the kernel parameters
  (using the IPL) or simply recompile the kernel with no IDE support.

  (The Presicionbook uses 2.5" IDE harddrives, obviously connected
   to the CMD chip, but they automagically appear as SCSI drives on LASI
   SCSI.)

- b/w LCD status screen

  The heartbeat, disk-activity etc. indicators seem to work perfectly.

- PCMCIA

  I'm honestly a little bit confused here.
  It uses the  Cirrus Logic PD 6832 PCMCIA/CardBus Controller, which
  seems to be supported under Linux, HOWEVER the physical slots
  appear to be just for old PCMCIA ISA 16bit PC Cards, not for the
  newer 32bit PCI CardBus PC Cards. I haven't tried whether it works,
  since I don't have any PCMCIA PC Cards (ISA or PCI Cardbus).

- Irda

  I don't know whether the IrDA chip is supported

- Serial/Parallel

  Couldn't test it since you need an external adapter to get access to the
  serial/parallel/aui ports.



greetings, Max



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From: "M. Grabert" <xam@cs.ucc.ie>
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Subject: [parisc-linux] STI fb questions
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Hi,

I have some questions regarding STI fb and Visualize-EG.

My Precisionbook obviously has a Visualize-EG with just 2MB.
So it should be able to display at least 800x600 in 24/32bit and
1024x768 in 16bit, but it refuses to do so. 'dmesg' ALWAYS shows
only 8bit colour depth regardless of the display resolution.

Obviously the standard sti=8/24 sti_font=VGA8x16 is used in the
kernel command line (according to dmesg, however it's not specified in
palo.conf).

My question is know, does STIfb also supports 16bit? How can I force
16bit and 24/32bit colour depths? What does sti=8/24 exactly mean?


Thanks, Max



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Subject: Re: [parisc-linux] Presicionbook success
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On Wed, Apr 16, 2003 at 01:07:06PM +0100, M. Grabert wrote:
> I just wanted you to inform that I successfully installed
> Debian testing on my Presicionbook.

Sweet!

> - The precompiled kernel from the EISEE team may hang ...
> 
>   ... since it has support for the CMD PCI0643 IDE Busmaster chip,
>   which is obviously used in the Presicionbook, but the driver
>   doensn't/mustn't be used in Linux, since it causes confusion!
>   So add "ide=nodma" or something similar to the kernel parameters
>   (using the IPL) or simply recompile the kernel with no IDE support.
> 
>   (The Presicionbook uses 2.5" IDE harddrives, obviously connected
>    to the CMD chip, but they automagically appear as SCSI drives on LASI
>    SCSI.)

*blink*.  That's pretty weird.  Could you send the device listing that
dmesg produces, and the results of lspci?

> - PCMCIA
> 
>   I'm honestly a little bit confused here.
>   It uses the  Cirrus Logic PD 6832 PCMCIA/CardBus Controller, which
>   seems to be supported under Linux, HOWEVER the physical slots
>   appear to be just for old PCMCIA ISA 16bit PC Cards, not for the
>   newer 32bit PCI CardBus PC Cards. I haven't tried whether it works,
>   since I don't have any PCMCIA PC Cards (ISA or PCI Cardbus).

I'm a little confused; I've got both 16 and 32 bit cards here and I
don't see any physical difference between the cards that'd prevent a
32-bit card being inserted into a slot.  Yes, gold vs silver colouring;
some bumps on the 32-bit card (could that be it?)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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To: Matthew Wilcox <willy@debian.org>
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On Wed, 16 Apr 2003, Matthew Wilcox wrote:

> On Wed, Apr 16, 2003 at 01:07:06PM +0100, M. Grabert wrote:
> > I just wanted you to inform that I successfully installed
> > Debian testing on my Presicionbook.
>
> Sweet!
>
> >   (The Presicionbook uses 2.5" IDE harddrives, obviously connected
> >    to the CMD chip, but they automagically appear as SCSI drives on LASI
> >    SCSI.)
>
> *blink*.  That's pretty weird.  Could you send the device listing that
> dmesg produces, and the results of lspci?

Attached to this mail ;)

NB. dmesg output running linux-2.4.20-pa32 WITHOUT IDE support!
    And I was using lspci -vvv

> I'm a little confused; I've got both 16 and 32 bit cards here and I
> don't see any physical difference between the cards that'd prevent a
> 32-bit card being inserted into a slot.  Yes, gold vs silver colouring;
> some bumps on the 32-bit card (could that be it?)

Exactly! Unfortunately you can't use 32bit Cardbus PC Cards in 16bit
PCMCIA ISA slots :-(


greetings, Max

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From: "M. Grabert" <xam@cs.ucc.ie>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Presicionbook success
Date: Wed, 16 Apr 2003 13:41:11 +0100 (IST)
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Sorry, I attached the wrong dmesg.txt

Thanks, max


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---275789367-1825776469-1050496871=:28370--


From - Thu Nov 08 21:27:32 2018
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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Presicionbook success
Date: Wed, 16 Apr 2003 15:13:33 +0200
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On Wed, 16 Apr 2003 13:37:08 +0100 (IST)
"M. Grabert" <xam@cs.ucc.ie> wrote:

> On Wed, 16 Apr 2003, Matthew Wilcox wrote:
> 
> > On Wed, Apr 16, 2003 at 01:07:06PM +0100, M. Grabert wrote:
> > > I just wanted you to inform that I successfully installed
> > > Debian testing on my Presicionbook.
> >
> > Sweet!
> >
> > >   (The Presicionbook uses 2.5" IDE harddrives, obviously connected
> > >    to the CMD chip, but they automagically appear as SCSI drives on
> > >    LASI SCSI.)
> >
> > *blink*.  That's pretty weird.  Could you send the device listing that
> > dmesg produces, and the results of lspci?
> 
> Attached to this mail ;)
something went wrong. I've got some html code in the attache dmesg file.

Could you send it again, as well as cat /proc/cpuinfo and uname -a, so
that i can update our listing at pateam.esiee.fr ?

thx,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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From: Gavin Hubbard <ghub005@xtra.co.nz>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Presicionbook success
Date: Thu, 17 Apr 2003 01:15:31 +1200
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>On Wed, Apr 16, 2003 at 01:07:06PM +0100, M. Grabert wrote:
>> I just wanted you to inform that I successfully installed
>> Debian testing on my Presicionbook.
>
>Sweet!
>
>> - The precompiled kernel from the EISEE team may hang ...
>> 
>>   ... since it has support for the CMD PCI0643 IDE Busmaster chip,
>>   which is obviously used in the Presicionbook, but the driver
>>   doensn't/mustn't be used in Linux, since it causes confusion!
>>   So add "ide=nodma" or something similar to the kernel parameters
>>   (using the IPL) or simply recompile the kernel with no IDE support.
>> 
>>   (The Presicionbook uses 2.5" IDE harddrives, obviously connected
>>    to the CMD chip, but they automagically appear as SCSI drives on LASI
>>    SCSI.)
>
>*blink*.  That's pretty weird.  Could you send the device listing that
>dmesg produces, and the results of lspci?


Before anyone loses too much sleep over this, the Precisionbook has
internal SCSI-IDE bridges that sit between the HBA and the drives. I
believe a similar system was used in some of the earlier Apple Powerbooks.

Regards,

Gavin



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On Wed, 16 Apr 2003, Thibaut VARENE wrote:

> something went wrong. I've got some html code in the attache dmesg file.
>
> Could you send it again, as well as cat /proc/cpuinfo and uname -a, so
> that i can update our listing at pateam.esiee.fr ?

Sorry, I know. I resent the dmesg to the list!


bucephaslas:~# more /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 1.1e
cpu             : PA7300LC (PCX-L2)
cpu MHz         : 160.000000
model           : 9000/778/B160L
model name      : Merlin L2 160 (9000/778/B160L)
hversion        : 0x00005020
sversion        : 0x00000481
I-cache         : 64 KB
D-cache         : 64 KB (WB)
ITLB entries    : 96
DTLB entries    : 96 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (8 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 106.49
software id     : 2015040524

bucephaslas:~# uname -a
Linux bucephaslas 2.4.20-pa32 #2 Wed Apr 16 11:03:26 IST 2003 parisc unknown unknown GNU/Linux


Actually it doesn't have a name yet (using the IP and the name of my
other laptop). Any suggestions?


Slan, Max



From - Thu Nov 08 21:27:33 2018
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X-Mozilla-Keys:                                                                                 
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Presicionbook success
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On Thu, Apr 17, 2003 at 01:15:31AM +1200, Gavin Hubbard wrote:
> Before anyone loses too much sleep over this, the Precisionbook has
> internal SCSI-IDE bridges that sit between the HBA and the drives. I
> believe a similar system was used in some of the earlier Apple Powerbooks.

Yep, someone pointed that out in an earlier email.  I'm just trying to
figure out how to handle this for the best.

1) Provide a pci quirk that deletes the IDE device from the bus
2) Hack the IDE driver to not claim that device if it's on a PrecisionBook
3) Ignore the scsi device and let the IDE driver drive the chips
4) Er.. something else.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Re: Presicionbook success
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On Wed, 16 Apr 2003, Matthew Wilcox wrote:

> On Thu, Apr 17, 2003 at 01:15:31AM +1200, Gavin Hubbard wrote:
> > Before anyone loses too much sleep over this, the Precisionbook has
> > internal SCSI-IDE bridges that sit between the HBA and the drives. I
> > believe a similar system was used in some of the earlier Apple Powerbooks.
>
> Yep, someone pointed that out in an earlier email.  I'm just trying to
> figure out how to handle this for the best.
>
> 1) Provide a pci quirk that deletes the IDE device from the bus
> 2) Hack the IDE driver to not claim that device if it's on a PrecisionBook
> 3) Ignore the scsi device and let the IDE driver drive the chips
> 4) Er.. something else.

The initialization of the CMD PCI0643 IDE controller fails when using
the ESIEE kernel (which has support built-in for this chip).
Something like "failed to get IRQ, will probe later".

So no devices were found on the IDE bus, just on the LASI SCSI.
Probably it's the best just to use SCSI and not to use IDE support at all ...

greetings, max



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Re: Presicionbook success
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On Wed, Apr 16, 2003 at 02:36:25PM +0100, M. Grabert wrote:
> On Wed, 16 Apr 2003, Matthew Wilcox wrote:
> 
> > On Thu, Apr 17, 2003 at 01:15:31AM +1200, Gavin Hubbard wrote:
> > > Before anyone loses too much sleep over this, the Precisionbook has
> > > internal SCSI-IDE bridges that sit between the HBA and the drives. I
> > > believe a similar system was used in some of the earlier Apple Powerbooks.
> >
> > Yep, someone pointed that out in an earlier email.  I'm just trying to
> > figure out how to handle this for the best.
> >
> > 1) Provide a pci quirk that deletes the IDE device from the bus
> > 2) Hack the IDE driver to not claim that device if it's on a PrecisionBook
> > 3) Ignore the scsi device and let the IDE driver drive the chips
> > 4) Er.. something else.
> 
> The initialization of the CMD PCI0643 IDE controller fails when using
> the ESIEE kernel (which has support built-in for this chip).
> Something like "failed to get IRQ, will probe later".

Oh, I thought you said the kernel hung when probing with this driver.
If it just whines about being unable to do anything, that's no problem.

> So no devices were found on the IDE bus, just on the LASI SCSI.
> Probably it's the best just to use SCSI and not to use IDE support at all ...

*nod*.  It might be fun for someone to play with fixing the IDE driver,
but I don't think that's necessary.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Wed, 16 Apr 2003, Matthew Wilcox wrote:

> Date: Wed, 16 Apr 2003 14:44:33 +0100
> From: Matthew Wilcox <willy@debian.org>
> To: M. Grabert <xam@cs.ucc.ie>
> Cc: Matthew Wilcox <willy@debian.org>, Gavin Hubbard <ghub005@xtra.co.nz>,
>      parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Re: Presicionbook success
>
> On Wed, Apr 16, 2003 at 02:36:25PM +0100, M. Grabert wrote:

[...]

> > The initialization of the CMD PCI0643 IDE controller fails when using
> > the ESIEE kernel (which has support built-in for this chip).
> > Something like "failed to get IRQ, will probe later".
>
> Oh, I thought you said the kernel hung when probing with this driver.
> If it just whines about being unable to do anything, that's no problem.

Maybe I was a little bit confusing to you:

1. Using a kernel with CMD IDE support, it will hang with the message
   "will probe IRQs later" ...
2. it will not hang if you pass a ide=nodma, but then it will show
   no devices
3. It will just boot fine without any CMD IDE support in the kernel

> > So no devices were found on the IDE bus, just on the LASI SCSI.
> > Probably it's the best just to use SCSI and not to use IDE support at all ...
>
> *nod*.  It might be fun for someone to play with fixing the IDE driver,
> but I don't think that's necessary.

;)


Slan, Max




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> -----Original Message-----
> From: M. Grabert [mailto:xam@cs.ucc.ie]
> Sent: woensdag 16 april 2003 15:36
> To: Matthew Wilcox
> Cc: Gavin Hubbard; parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Re: Presicionbook success
> 
> 
> On Wed, 16 Apr 2003, Matthew Wilcox wrote:
> 
> > On Thu, Apr 17, 2003 at 01:15:31AM +1200, Gavin Hubbard wrote:
> > > Before anyone loses too much sleep over this, the 
> Precisionbook has
> > > internal SCSI-IDE bridges that sit between the HBA and 
> the drives. I
> > > believe a similar system was used in some of the earlier 
> Apple Powerbooks.
> >
> > Yep, someone pointed that out in an earlier email.  I'm 
> just trying to
> > figure out how to handle this for the best.
> >
> > 1) Provide a pci quirk that deletes the IDE device from the bus
> > 2) Hack the IDE driver to not claim that device if it's on 
> a PrecisionBook
> > 3) Ignore the scsi device and let the IDE driver drive the chips
> > 4) Er.. something else.
> 
> The initialization of the CMD PCI0643 IDE controller fails when using
> the ESIEE kernel (which has support built-in for this chip).
> Something like "failed to get IRQ, will probe later".
> 
> So no devices were found on the IDE bus, just on the LASI SCSI.
> Probably it's the best just to use SCSI and not to use IDE 
> support at all ...


Is this something like
http://www6.tomshardware.com/storage/20030130/index.html ? Then you
(electronically) cannot find any ide at all, its hidden behind the scsi
interface. If you see part of it, then best to try to handle it as good as
possible (try 'not at all' for a start). I think the 'will probe later' can
be canceled, triggered by a found scsi interface.

For what its worth, I think the IRQ is hooked to the scsi interface, not to
the processor.

btw, what does an `ioscan` from HP-UX report? I guess it only sees scsi.


CBee



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<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: M. Grabert [<A =
HREF=3D"mailto:xam@cs.ucc.ie">mailto:xam@cs.ucc.ie</A>]</FONT>
<BR><FONT SIZE=3D2>&gt; Sent: woensdag 16 april 2003 15:36</FONT>
<BR><FONT SIZE=3D2>&gt; To: Matthew Wilcox</FONT>
<BR><FONT SIZE=3D2>&gt; Cc: Gavin Hubbard; =
parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>&gt; Subject: Re: [parisc-linux] Re: Presicionbook =
success</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; On Wed, 16 Apr 2003, Matthew Wilcox =
wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; On Thu, Apr 17, 2003 at 01:15:31AM +1200, =
Gavin Hubbard wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; Before anyone loses too much sleep =
over this, the </FONT>
<BR><FONT SIZE=3D2>&gt; Precisionbook has</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; internal SCSI-IDE bridges that sit =
between the HBA and </FONT>
<BR><FONT SIZE=3D2>&gt; the drives. I</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; believe a similar system was used in =
some of the earlier </FONT>
<BR><FONT SIZE=3D2>&gt; Apple Powerbooks.</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; Yep, someone pointed that out in an =
earlier email.&nbsp; I'm </FONT>
<BR><FONT SIZE=3D2>&gt; just trying to</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; figure out how to handle this for the =
best.</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1) Provide a pci quirk that deletes the =
IDE device from the bus</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 2) Hack the IDE driver to not claim that =
device if it's on </FONT>
<BR><FONT SIZE=3D2>&gt; a PrecisionBook</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 3) Ignore the scsi device and let the IDE =
driver drive the chips</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 4) Er.. something else.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; The initialization of the CMD PCI0643 IDE =
controller fails when using</FONT>
<BR><FONT SIZE=3D2>&gt; the ESIEE kernel (which has support built-in =
for this chip).</FONT>
<BR><FONT SIZE=3D2>&gt; Something like &quot;failed to get IRQ, will =
probe later&quot;.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; So no devices were found on the IDE bus, just =
on the LASI SCSI.</FONT>
<BR><FONT SIZE=3D2>&gt; Probably it's the best just to use SCSI and not =
to use IDE </FONT>
<BR><FONT SIZE=3D2>&gt; support at all ...</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Is this something like <A =
HREF=3D"http://www6.tomshardware.com/storage/20030130/index.html" =
TARGET=3D"_blank">http://www6.tomshardware.com/storage/20030130/index.ht=
ml</A> ? Then you (electronically) cannot find any ide at all, its =
hidden behind the scsi interface. If you see part of it, then best to =
try to handle it as good as possible (try 'not at all' for a start). I =
think the 'will probe later' can be canceled, triggered by a found scsi =
interface.</FONT></P>

<P><FONT SIZE=3D2>For what its worth, I think the IRQ is hooked to the =
scsi interface, not to the processor.</FONT>
</P>

<P><FONT SIZE=3D2>btw, what does an `ioscan` from HP-UX report? I guess =
it only sees scsi.</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>CBee</FONT>
</P>
<BR>

</BODY>
</HTML>
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Subject: RE: [parisc-linux] Re: Presicionbook success
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On Wed, 16 Apr 2003, [iso-8859-1] "Beerse, Corn=E9" wrote:

> Is this something like
> http://www6.tomshardware.com/storage/20030130/index.html ? Then you
> (electronically) cannot find any ide at all, its hidden behind the scsi
> interface. If you see part of it, then best to try to handle it as good a=
s
> possible (try 'not at all' for a start). I think the 'will probe later' c=
an
> be canceled, triggered by a found scsi interface.

The hard disks are removeable, but there is no obvious IDE-SCSI bridge
visible. It is build-in inside the laptop (i.e. non-removeable), and it's
obviously visible from the OS (at least linux sees the IDE chip). Whether
you can make any sensible use of it is a different question though ...

> For what its worth, I think the IRQ is hooked to the scsi interface, not =
to
> the processor.

This would make sense.

> btw, what does an `ioscan` from HP-UX report? I guess it only sees scsi.

Good question, I don't have the HP-UX root password. The Precisionbook
comes with two 4GB hard disks, both with HP-UX installed, but I have to
ask for the password (or does anybody know how to easily gain root access?)=
,
which I haven't done yet.

Greetings, Max



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> -----Original Message-----
> From: M. Grabert [mailto:xam@cs.ucc.ie]
> 
> On Wed, 16 Apr 2003, Matthew Wilcox wrote:
> 
> > Date: Wed, 16 Apr 2003 14:44:33 +0100
> >
> > On Wed, Apr 16, 2003 at 02:36:25PM +0100, M. Grabert wrote:
> 
> [...]
> 
> > > The initialization of the CMD PCI0643 IDE controller 
> fails when using
> > > the ESIEE kernel (which has support built-in for this chip).
> > > Something like "failed to get IRQ, will probe later".
> >
> > Oh, I thought you said the kernel hung when probing with 
> this driver.
> > If it just whines about being unable to do anything, that's 
> no problem.
> 
> Maybe I was a little bit confusing to you:
> 
> 1. Using a kernel with CMD IDE support, it will hang with the message
>    "will probe IRQs later" ...
> 2. it will not hang if you pass a ide=nodma, but then it will show
>    no devices
> 3. It will just boot fine without any CMD IDE support in the kernel
> 
> > > So no devices were found on the IDE bus, just on the LASI SCSI.
> > > Probably it's the best just to use SCSI and not to use IDE support at
all ...
> >
> > *nod*.  It might be fun for someone to play with fixing the IDE driver,
> > but I don't think that's necessary.

This gives me more and more the impression it is definitly some predecessor
of http://www6.tomshardware.com/storage/20030130/index.html

I think the ide interface is not perfectly hidden behind the scsi interface,
the cpu can still somehow recognize the ide interface. The ide interface
cannot do dma and irq since that is hooked to the scsi interface, not to the
cpu/memory. Hence, I think the best the ide driver can do is not to try
later but to be disabled at all. Btw, what happens if the ide says to try
later, is there a total system pause (resulting in a halt)? or does the
remainder of the system continue (and is it save to ignore)?


CBee

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5.5.2654.45">
<TITLE>RE: [parisc-linux] Re: Presicionbook success</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: M. Grabert [<A =
HREF=3D"mailto:xam@cs.ucc.ie">mailto:xam@cs.ucc.ie</A>]</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; On Wed, 16 Apr 2003, Matthew Wilcox =
wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; Date: Wed, 16 Apr 2003 14:44:33 =
+0100</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; On Wed, Apr 16, 2003 at 02:36:25PM +0100, =
M. Grabert wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; [...]</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; The initialization of the CMD PCI0643 =
IDE controller </FONT>
<BR><FONT SIZE=3D2>&gt; fails when using</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; the ESIEE kernel (which has support =
built-in for this chip).</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; Something like &quot;failed to get =
IRQ, will probe later&quot;.</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; Oh, I thought you said the kernel hung =
when probing with </FONT>
<BR><FONT SIZE=3D2>&gt; this driver.</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; If it just whines about being unable to do =
anything, that's </FONT>
<BR><FONT SIZE=3D2>&gt; no problem.</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Maybe I was a little bit confusing to =
you:</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; 1. Using a kernel with CMD IDE support, it will =
hang with the message</FONT>
<BR><FONT SIZE=3D2>&gt;&nbsp;&nbsp;&nbsp; &quot;will probe IRQs =
later&quot; ...</FONT>
<BR><FONT SIZE=3D2>&gt; 2. it will not hang if you pass a ide=3Dnodma, =
but then it will show</FONT>
<BR><FONT SIZE=3D2>&gt;&nbsp;&nbsp;&nbsp; no devices</FONT>
<BR><FONT SIZE=3D2>&gt; 3. It will just boot fine without any CMD IDE =
support in the kernel</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; So no devices were found on the IDE =
bus, just on the LASI SCSI.</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; Probably it's the best just to use =
SCSI and not to use IDE support at all ...</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; *nod*.&nbsp; It might be fun for someone =
to play with fixing the IDE driver,</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; but I don't think that's necessary.</FONT>
</P>

<P><FONT SIZE=3D2>This gives me more and more the impression it is =
definitly some predecessor of <A =
HREF=3D"http://www6.tomshardware.com/storage/20030130/index.html" =
TARGET=3D"_blank">http://www6.tomshardware.com/storage/20030130/index.ht=
ml</A></FONT></P>

<P><FONT SIZE=3D2>I think the ide interface is not perfectly hidden =
behind the scsi interface, the cpu can still somehow recognize the ide =
interface. The ide interface cannot do dma and irq since that is hooked =
to the scsi interface, not to the cpu/memory. Hence, I think the best =
the ide driver can do is not to try later but to be disabled at all. =
Btw, what happens if the ide says to try later, is there a total system =
pause (resulting in a halt)? or does the remainder of the system =
continue (and is it save to ignore)?</FONT></P>
<BR>

<P><FONT SIZE=3D2>CBee</FONT>
</P>

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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Re: Presicionbook success
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On Wed, Apr 16, 2003 at 03:09:58PM +0100, M. Grabert wrote:
> Good question, I don't have the HP-UX root password. The Precisionbook
> comes with two 4GB hard disks, both with HP-UX installed, but I have to
> ask for the password (or does anybody know how to easily gain root access?),
> which I haven't done yet.

Surely you can boot it, interact with IPL and add `single' as a parameter
to boot it in single-user mode?  Or does that ask for the pw too?

(I have to confess to never having used hpux in anger ;-)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: RE: [parisc-linux] Re: Presicionbook success
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On Wed, 16 Apr 2003, [iso-8859-1] "Beerse, Corn=E9" wrote:

> This gives me more and more the impression it is definitly some predecess=
or
> of http://www6.tomshardware.com/storage/20030130/index.html
>
> I think the ide interface is not perfectly hidden behind the scsi interfa=
ce,
> the cpu can still somehow recognize the ide interface. The ide interface
> cannot do dma and irq since that is hooked to the scsi interface, not to =
the
> cpu/memory. Hence, I think the best the ide driver can do is not to try
> later but to be disabled at all. Btw, what happens if the ide says to try
> later, is there a total system pause (resulting in a halt)? or does the
> remainder of the system continue (and is it save to ignore)?

As stated in my earlier mails, it

- hangs (I waited for quite a while!)
- or continues (if ide=3Dnodma is used)

Slan, Max



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From: Bjorn Helgaas <bjorn_helgaas@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Presicionbook success
Date: Wed, 16 Apr 2003 08:20:08 -0600
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On Wednesday 16 April 2003 8:15 am, Matthew Wilcox wrote:
> On Wed, Apr 16, 2003 at 03:09:58PM +0100, M. Grabert wrote:
> > Good question, I don't have the HP-UX root password. The Precisionbook
> > comes with two 4GB hard disks, both with HP-UX installed, but I have to
> > ask for the password (or does anybody know how to easily gain root access?),
> > which I haven't done yet.
> 
> Surely you can boot it, interact with IPL and add `single' as a parameter
> to boot it in single-user mode?  Or does that ask for the pw too?

I think you want something like:

ISL> hpux -is



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Subject: RE: [parisc-linux] Re: Presicionbook success
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This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.

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> -----Original Message-----
> From: M. Grabert [mailto:xam@cs.ucc.ie]
> Sent: woensdag 16 april 2003 16:18
>=20
> On Wed, 16 Apr 2003, [iso-8859-1] "Beerse, Corn=E9" wrote:
>=20
> > This gives me more and more the impression it is definitly=20
> some predecessor
> > of http://www6.tomshardware.com/storage/20030130/index.html
> >
>>>>>>>>>>>>>>>>>. snip snip <<<<<<<<<<<<<
>=20
> As stated in my earlier mails, it
>=20
> - hangs (I waited for quite a while!)
> - or continues (if ide=3Dnodma is used)

Then I think the next happens: The ide interface-chip is somehow =
detected
and the system pauses while nothing can continue. I think the cpu steps
aside to have some dma passing by. It either waits for some dma to =
happen or
for a note it can continue. Which never happen and never will happen =
since
the ide interface-chip does this dma to the scsi controler, not to the
cpu-memory.

In this special case, the cpu should not ask the chip if it does dma, =
the
chip sure does dma but it does it not against core memory but against =
the
scsi controler. This will be verry hard to detect from the cpu side. I =
think
the nicest implementation is to use the ide=3Dnodma, either manually or
carefully if a precisionbook is detected.


CBee

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charset=3Diso-8859-15">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2654.45">
<TITLE>RE: [parisc-linux] Re: Presicionbook success</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: M. Grabert [<A =
HREF=3D"mailto:xam@cs.ucc.ie">mailto:xam@cs.ucc.ie</A>]</FONT>
<BR><FONT SIZE=3D2>&gt; Sent: woensdag 16 april 2003 16:18</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; On Wed, 16 Apr 2003, [iso-8859-1] &quot;Beerse, =
Corn=E9&quot; wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; This gives me more and more the impression =
it is definitly </FONT>
<BR><FONT SIZE=3D2>&gt; some predecessor</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; of <A =
HREF=3D"http://www6.tomshardware.com/storage/20030130/index.html" =
TARGET=3D"_blank">http://www6.tomshardware.com/storage/20030130/index.ht=
ml</A></FONT>
<BR><FONT SIZE=3D2>&gt; &gt;</FONT>
<BR><FONT =
SIZE=3D2>&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt=
;&gt;. snip snip =
&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; As stated in my earlier mails, it</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; - hangs (I waited for quite a while!)</FONT>
<BR><FONT SIZE=3D2>&gt; - or continues (if ide=3Dnodma is used)</FONT>
</P>

<P><FONT SIZE=3D2>Then I think the next happens: The ide interface-chip =
is somehow detected and the system pauses while nothing can continue. I =
think the cpu steps aside to have some dma passing by. It either waits =
for some dma to happen or for a note it can continue. Which never =
happen and never will happen since the ide interface-chip does this dma =
to the scsi controler, not to the cpu-memory.</FONT></P>

<P><FONT SIZE=3D2>In this special case, the cpu should not ask the chip =
if it does dma, the chip sure does dma but it does it not against core =
memory but against the scsi controler. This will be verry hard to =
detect from the cpu side. I think the nicest implementation is to use =
the ide=3Dnodma, either manually or carefully if a precisionbook is =
detected.</FONT></P>
<BR>

<P><FONT SIZE=3D2>CBee</FONT>
</P>

</BODY>
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From: "M. Grabert" <xam@cs.ucc.ie>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Presicionbook ioscan
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Hi PA,

I asked some other (new) owners of Presicionbooks to give me the output
of 'ioscan -f'. Here you go ...


---------- Forwarded message ----------
Date: Wed, 16 Apr 2003 11:22:37 -0400
From: Danny Duval
To: xam
Subject: re: Question from eBay Member


Class       I  H/W Path    Driver      S/W State   H/W Type     Description
============================================================================
bc          0              root        CLAIMED     BUS_NEXUS
bc          1  8           bc          CLAIMED     BUS_NEXUS    Pseudo Bus
Converter
ba          0  8/0         GSCtoPCI    CLAIMED     BUS_NEXUS    GSCtoPCI
Bridge
unknown    -1  8/0/1/0                 UNCLAIMED   UNKNOWN      PCI IDE
(10950643)
tty         1  8/0/63      asio0       CLAIMED     INTERFACE    Built-in
RS-232C
ba          1  8/16        bus_adapter CLAIMED     BUS_NEXUS    Core I/O
Adapter
ext_bus     1  8/16/0      CentIf      CLAIMED     INTERFACE    Built-in
Parallel Interface
audio       0  8/16/1      audio       CLAIMED     INTERFACE    Built-in
Audio
tty         0  8/16/4      asio0       CLAIMED     INTERFACE    Built-in
RS-232C
ext_bus     0  8/16/5      c720        CLAIMED     INTERFACE    Built-in
SCSI
target      0  8/16/5.0    tgt         CLAIMED     DEVICE
disk        0  8/16/5.0.0  sdisk       CLAIMED     DEVICE       ADTX
AXSITS2532R 014C
target      1  8/16/5.1    tgt         CLAIMED     DEVICE
disk        1  8/16/5.1.0  sdisk       CLAIMED     DEVICE       ADTX
AXSITS2532R 014C
target      2  8/16/5.7    tgt         CLAIMED     DEVICE
ctl         0  8/16/5.7.0  sctl        CLAIMED     DEVICE       Initiator
lan         0  8/16/6      lan2        CLAIMED     INTERFACE    Built-in LAN
ps2         0  8/16/7      ps2         CLAIMED     INTERFACE    Built-in
Keyboard/Mouse
pc          0  8/16/10     fdc         CLAIMED     INTERFACE    Built-in
Floppy Drive
graphics    0  8/24        graph3      CLAIMED     INTERFACE    Graphics
processor   0  62          processor   CLAIMED     PROCESSOR    Processor
memory      0  63          memory      CLAIMED     MEMORY       Memory



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Subject: RE: [parisc-linux] Re: Presicionbook success
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Cc: "\"Beerse," =?ISO-8859-1?Q?Corn=E9=22?= <c.beerse@torex-hiscom.nl>,
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On Mer, 2003-04-16 at 15:09, M. Grabert wrote:
> The hard disks are removeable, but there is no obvious IDE-SCSI bridge
> visible. It is build-in inside the laptop (i.e. non-removeable), and it's
> obviously visible from the OS (at least linux sees the IDE chip). Whether
> you can make any sensible use of it is a different question though ...

That means the system either has seperate IDE and SCSI controllers or
has an IDE controller and an IDE_SCSI bridge for scsi disk. I suspect
the former
> > For what its worth, I think the IRQ is hooked to the scsi interface, not to
> > the processor.
> 
> This would make sense.

It would be common sense for two exclusive items to use the same IRQ,
but if pio works so does the IRQ line

> comes with two 4GB hard disks, both with HP-UX installed, but I have to
> ask for the password (or does anybody know how to easily gain root access?),
> which I haven't done yet.

There are several ways but that would be subverting a rights management
system and I don't wish to get the list owners in trouble.



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>So it should be able to display at least 800x600 in 24/32bit and
>1024x768 in 16bit, but it refuses to do so. 'dmesg' ALWAYS shows
>only 8bit colour depth regardless of the display resolution.
>

(may be you will find more accurate explanation on the stifb driver limits
with a search in this m-l)

>Obviously the standard sti=8/24 sti_font=VGA8x16 is used in the
>kernel command line (according to dmesg, however it's not specified in
>palo.conf).

Well if some parameters are not specified, palo take default value for those
once. 

>
>My question is know, does STIfb also supports 16bit? How can I force
>16bit and 24/32bit colour depths?

Unfortunately, it is not possible to force to use more than what dmesg announce
you (see limits) :(

> What does sti=8/24 exactly mean?
>
IIRC 8bit 24 colour depth.

Joel

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On Mer, 2003-04-16 at 14:15, Gavin Hubbard wrote:
> Before anyone loses too much sleep over this, the Precisionbook has
> internal SCSI-IDE bridges that sit between the HBA and the drives. I
> believe a similar system was used in some of the earlier Apple Powerbooks.

So htf do they end up on the IDE controller too ? If they show up on the
scsi bus under Linux then I need the ssvid/ssid for the CMD device (and
which CMD variant is used) and I can vanish it easily enough.



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>cool - let me add some general comments.
>You might break the diff up into chunks along the lines that
>I've commented on them below. You should end up with something like
>15-20 patches.

Well I already create:
a chunck containing debian-configs (I call it 00_parisc_debian-configs.patch)
[about 140k] (would it be submited?)

another chunk containing all parisc specific (named 01_parisc.patch) containing
arch/parisc, include/asm-parisc and another noticed "parisc specific" [about
160k]

>
>>  Documentation/Configure.help                      |   90
>	I expect parisc-specific changes here.

Still have to care about a very small hunk (already from 2.4.19-pa2)
@@ -17555,6 +17595,10 @@
   doing that; to actually get it to happen you need to pass the
   option "console=lp0" to the kernel at boot time.

+  Note that kernel messages can get lost if the printer is out of
+  paper (or off, or unplugged, or too busy..), but this behaviour
+  can be changed. See drivers/char/lp.c (do this at your own risk).
+
   If the printer is out of paper (or off, or unplugged, or too
   busy..) the kernel will stall until the printer is ready again.
   By defining CONSOLE_LP_STRICT to 0 (at your own risk) you

The rest is "parisc specific"

>
>>  arch/parisc/config.in                             |    6
>...
>	parisc specific (our tree is authoritative)
>	Need to review for changes in Marcelo's tree.
>	I expect Marcello to take the mess as-is if there
>	are no conflicts.
>
Just more some small changes of mine (matching as near as possible changes
of other platform) to obtain a bootable 32bits kernel for my b2k (and its
fameous ide cdrom) and a b180L :)

Thanks in advance for your additional attention,
    Joel

PS: As advise I will not consider generic patches (the main require knowledge
I do not have)

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On Wed, Apr 16, 2003 at 06:44:11PM +0200, Joel Soete wrote:
> Well I already create:
> a chunck containing debian-configs (I call it 00_parisc_debian-configs.patch)
> [about 140k] (would it be submited?)

No, I don't think this should be submitted.  No other architecture does this.

> another chunk containing all parisc specific (named 01_parisc.patch) containing
> arch/parisc, include/asm-parisc and another noticed "parisc specific" [about
> 160k]

sounds good.  be sure this applies to alan's/marcelo's tree as they've
taken updates since 2.4.20 was released.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] Re: target/10271: [3.2/3.3/3.4 regression] [HPPA] Floating point args don't get reloaded across function calls at -O2
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Synopsis: [3.2/3.3/3.4 regression] [HPPA] Floating point args don't get reloaded across function calls at -O2

State-Changed-From-To: analyzed->closed
State-Changed-By: danglin
State-Changed-When: Wed Apr 16 17:51:45 2003
State-Changed-Why:
    Fixed.
    <http://gcc.gnu.org/ml/gcc-patches/2003-04/msg01236.html>.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10271


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On Wed, Apr 16, 2003 at 01:28:43PM +0100, M. Grabert wrote:
> My Precisionbook obviously has a Visualize-EG with just 2MB.
> So it should be able to display at least 800x600 in 24/32bit and
> 1024x768 in 16bit, but it refuses to do so. 'dmesg' ALWAYS shows
> only 8bit colour depth regardless of the display resolution.

Visualize-EG is 8 bit only. That's a hardware limitation.

> My question is know, does STIfb also supports 16bit? How can I force
> 16bit and 24/32bit colour depths? What does sti=8/24 exactly mean?

stifb supports 32bit, if the hardware supports it. sti=8/24 is the
hardware path taken from PDC.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]


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On Wed, 16 Apr 2003, Thomas Bogendoerfer wrote:

> On Wed, Apr 16, 2003 at 01:28:43PM +0100, M. Grabert wrote:
> > My Precisionbook obviously has a Visualize-EG with just 2MB.
> > So it should be able to display at least 800x600 in 24/32bit and
> > 1024x768 in 16bit, but it refuses to do so. 'dmesg' ALWAYS shows
> > only 8bit colour depth regardless of the display resolution.
>
> Visualize-EG is 8 bit only. That's a hardware limitation.

The manual says something different/strange ... the LCD actually supports
16M colours, and so does the Visualize-EG (HP Graphitti).

... together with the fact that it just has 2MB onboard there is only
one possibility: they are referring to HP's color recovery technique.

Is there ANY way that color recovery will be supported anytime in the future?

> > My question is know, does STIfb also supports 16bit? How can I force
> > 16bit and 24/32bit colour depths? What does sti=8/24 exactly mean?
>
> stifb supports 32bit, if the hardware supports it. sti=8/24 is the
> hardware path taken from PDC.

Thanks, Max



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Subject: [parisc-linux] Re: c++/10235: [3.3 regression] [HPPA] internal compiler error: in final_scan_insn, at final.c:2099
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Synopsis: [3.3 regression] [HPPA] internal compiler error: in final_scan_insn, at final.c:2099

State-Changed-From-To: open->feedback
State-Changed-By: danglin
State-Changed-When: Wed Apr 16 20:02:05 2003
State-Changed-Why:
    I can't duplicate.  The file compiles and assembles
    successfully with 3.3 20030416.  Do you still see
    the problem?

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10235


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On Wednesday 16 April 2003 12:59 pm, M. Grabert wrote:
> On Wed, 16 Apr 2003, Thomas Bogendoerfer wrote:
> > On Wed, Apr 16, 2003 at 01:28:43PM +0100, M. Grabert wrote:
> > > My Precisionbook obviously has a Visualize-EG with just 2MB.
> > > So it should be able to display at least 800x600 in 24/32bit and
> > > 1024x768 in 16bit, but it refuses to do so. 'dmesg' ALWAYS shows
> > > only 8bit colour depth regardless of the display resolution.
> >
> > Visualize-EG is 8 bit only. That's a hardware limitation.
>
> The manual says something different/strange ... the LCD actually supports
> 16M colours, and so does the Visualize-EG (HP Graphitti).
>
> ... together with the fact that it just has 2MB onboard there is only
> one possibility: they are referring to HP's color recovery technique.

Yup.
>
> Is there ANY way that color recovery will be supported anytime in the
> future?

There has been a lot of mails on this list on this subject;
sorry that I don't have the pointers handy, but...

A search of the FAQ and the mailing list archive should lead you to
how others have dealt with this problem - including getting 8-bit X
to work on the machines.

Also, somewhere on the site(s) are some special X config files.
It isn't hopeless, just not pretty.

Mike


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Re:

> > The hard disks are removeable, but there is no obvious IDE-SCSI bridge
> > visible. It is build-in inside the laptop (i.e. non-removeable), and it's
...

> That means the system either has seperate IDE and SCSI controllers or
> has an IDE controller and an IDE_SCSI bridge for scsi disk. I suspect

The IDE to SCSI converter is a small board inside the "cartridge" 
(or "case") that forms the removable hard drive.   If you remove a hard
drive, and then open its case up, you'll see the converter board clearly.

It is indeed highly similar to the Acard SCSIIDE product (although possibly
from a different vendor).  

BTW, I would not expect either disk to show up as IDE at all.

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com


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Subject: [parisc-linux] Re: c++/10235: [3.3 regression] [HPPA] internal compiler error: in final_scan_insn, at final.c:2099
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Synopsis: [3.3 regression] [HPPA] internal compiler error: in final_scan_insn, at final.c:2099

State-Changed-From-To: feedback->closed
State-Changed-By: doko
State-Changed-When: Thu Apr 17 05:57:39 2003
State-Changed-Why:
    sucessfully built as well with 3.3 20030412 (current Debian package)

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10235


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Subject: Re: [parisc-linux] Re: c++/10235: [3.3 regression] [HPPA] internal compiler error: in final_scan_insn, at final.c:2099
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In reference to a message from doko@gcc.gnu.org, dated Apr 17:
> Synopsis: [3.3 regression] [HPPA] internal compiler error: in final_scan_insn, at final.c:2099
> 
> State-Changed-From-To: feedback->closed
> State-Changed-By: doko
> State-Changed-When: Thu Apr 17 05:57:39 2003
> State-Changed-Why:
>     sucessfully built as well with 3.3 20030412 (current Debian package)
> 
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10235

really? it still ICEs for me with that version. The test case was from
the nurbs++ package.

tausq@ios:~/debian/nurbs++-3.0.11$ g++ -v
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.3 20030412 (Debian prerelease)

tausq@ios:~/debian/nurbs++-3.0.11$ g++ -DHAVE_CONFIG_H -I. -I. -I../include -I/usr/X11R6/include -I../include -I../matrix -I../image -I../numerical -g -O2 -fno-implicit-templates -c f_nurbs.cpp -MT f_nurbs.lo -MD -MP -MF .deps/f_nurbs.TPlo  -fPIC -DPIC -o .libs/f_nurbs.lo
nurbs.cpp: In member function `void PLib::NurbsCurve<T, N>::globalInterpD(const
   PLib::Vector<PLib::Point_nD<T, D> >&, const PLib::Vector<PLib::Point_nD<T,
   D> >&, int, int, T) [with T = float, int N = 2]':
f_nurbs.cpp:85:   instantiated from here
nurbs.cpp:3060: internal compiler error: in final_scan_insn, at final.c:2099
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Maybe the test case needs fixing :) Dave, I'll put a preprocessed file
in gsyprf11:~tausq/f_nurbs.ii.gz. It's >100k so i won't post it here 
for now.  :)

i'm in the process of building a new cvs snapshot to retry.

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] Re: c++/10235: [3.3 regression] [HPPA] internal compiler error: in final_scan_insn, at final.c:2099
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> Maybe the test case needs fixing :) Dave, I'll put a preprocessed file
> in gsyprf11:~tausq/f_nurbs.ii.gz. It's >100k so i won't post it here 
> for now.  :)

Both the testcase and f_nurbs.ii compiled successfully using the following
command:

/home/dave/opt/gnu/gcc/gcc-3.3/bin/g++ -O2 -g -c -fPIC -fno-implicit-templates f_nurbs.ii

The above version of g++ has the sibcall argument fix installed yesterday.
However, I doubt that this fixed the problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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I will be out of the office starting April 17, 2003 and will not return
until April 22, 2003.




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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: [parisc-linux] Re: HP C180-XP CDROM boot.
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First of all, this is definitly the LAST time I answer a private mail
coming from a m-l thread. Nothing personnal there, but you're not the
first one, and i'm getting tired repeating the same remarks again and
again.

I'll add a comment about not answering mails in private on the
mailing-list webpage right now since it's not clearly stated.

The most obvious reason NOT TO DO SO is that I HAVE NO CLUE WHAT'S WRONG
with your setup, but somebody else on the m-l might.

Since you didn't CC'd the m-l, if i hadn't posted back to the m-l you
would have lost any chance to get that info.

And for what it's worth, this is not a private lesson. m-l archives are
useful for other buggers to find info in it, darn it! :P


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

On Thu, 17 Apr 2003 14:27:58 -0700 (PDT)
"K. David Prince" <kdp@hanhet.loew.washington.edu> wrote:

> Well, I eliminated hint #3.  I did pull out the CD-ROM.  I didn't find
> anything that obviously pointed to the block size.  Here's the info I
> have off of the CD-ROM:
> 
> HP CS P/N: A1658-60019	<== Bootable?  I can't find any references on
>                             this.
> 
> "Class 1 Laser Product Per IEC 825"
> 
> Jumper block items:
> 
> ID1		N/J
> ID2		Jumper
> ID4		N/J
> Parity		Jumper
> Term On/Off	N/J
> Prv/Alw		N/J  <== This one may be what I'm looking for.
> Test		N/J
> Power Supply	N/J
> 
> N/J = "No Jumper"
> 
> Is there a special place to find the block size jumper?
> 
> Dave
> 
> On Thu, 17 Apr 2003, Thibaut VARENE wrote:
> 
> > 1) You have a non-bootable CD drive (like some cd recorders and some
> > incompatible cd readers)
> > 2) the block size (usually a jumper on the back) is incorrectly set.
> > Check it's '512'.
> > 3) You have put the CD upside down in the cd tray.
> 
> 


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http://www.fr.parisc-linux.org/mailing-lists/outlookooo.html

On Thu, 17 Apr 2003 15:34:22 -0600
H Timothy Trinh <timtrinh@us.ibm.com> wrote:

> 
> 
> 
> 
> I will be out of the office starting April 17, 2003 and will not return
> until April 22, 2003.
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: Re: [parisc-linux] Re: HP C180-XP CDROM boot.
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That part number is just a standard HP CDROM from a UNIX workstation as it should be coming out of a C180.  It is and will boot if you are booting from a bootable CD.  If you burned a netiso image and it won't boot, I'd start there.  You could test it's ability to boot by trying to boot an HP OS install disk.  If that works, it's your Debian CD.  If that doesn't work, then it sounds like you have a bad CDROM.  You can also do a "sea ipl" from the main menu prompt after the system finishes selftest.  If the media in the drive or on the hard drives is bootable, they will show up.  This search does take some time because it is actually reading the boot sectors of the tape, CD, or hard drives it's scanning.  I would say if you hear your CD spin up and look for the boot sector during this searc
 h and it doesn't come back with bootable media, I would verify your CD you are trying to boot from. derekHP CE

Thibaut VARENE <varenet@esiee.fr> wrote:First of all, this is definitly the LAST time I answer a private mail
coming from a m-l thread. Nothing personnal there, but you're not the
first one, and i'm getting tired repeating the same remarks again and
again.

I'll add a comment about not answering mails in private on the
mailing-list webpage right now since it's not clearly stated.

The most obvious reason NOT TO DO SO is that I HAVE NO CLUE WHAT'S WRONG
with your setup, but somebody else on the m-l might.

Since you didn't CC'd the m-l, if i hadn't posted back to the m-l you
would have lost any chance to get that info.

And for what it's worth, this is not a private lesson. m-l archives are
useful for other buggers to find info in it, darn it! :P


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

On Thu, 17 Apr 2003 14:27:58 -0700 (PDT)
"K. David Prince" wrote:

> Well, I eliminated hint #3. I did pull out the CD-ROM. I didn't find
> anything that obviously pointed to the block size. Here's the info I
> have off of the CD-ROM:
> 
> HP CS P/N: A1658-60019 <== Bootable? I can't find any references on
> this.
> 
> "Class 1 Laser Product Per IEC 825"
> 
> Jumper block items:
> 
> ID1 N/J
> ID2 Jumper
> ID4 N/J
> Parity Jumper
> Term On/Off N/J
> Prv/Alw N/J <== This one may be what I'm looking for.
> Test N/J
> Power Supply N/J
> 
> N/J = "No Jumper"
> 
> Is there a special place to find the block size jumper?
> 
> Dave
> 
> On Thu, 17 Apr 2003, Thibaut VARENE wrote:
> 
> > 1) You have a non-bootable CD drive (like some cd recorders and some
> > incompatible cd readers)
> > 2) the block size (usually a jumper on the back) is incorrectly set.
> > Check it's '512'.
> > 3) You have put the CD upside down in the cd tray.
> 
> 
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


---------------------------------
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The New Yahoo! Search - Faster. Easier. Bingo.
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<DIV>That part number is just a standard HP CDROM from a UNIX workstation as it should be coming out of a C180.&nbsp; It is and will boot if you are booting from a bootable CD.&nbsp; If you burned a netiso image and it won't boot, I'd start there.&nbsp; You could test it's ability to boot by trying to boot an HP OS install disk.&nbsp; If that works, it's your Debian CD.&nbsp; If that doesn't work, then it sounds like you have a bad CDROM.&nbsp; You can also do a "sea ipl" from the main menu prompt after the system finishes selftest.&nbsp; If the media in the drive or on the hard drives is bootable, they will show up.&nbsp; This search does take some time because it is actually reading the boot sectors of the tape, CD, or hard drives it's scanning.&nbsp; I would say if you hear your CD spin
  up and look for the boot sector during this search and it doesn't come back with bootable media, I would verify your CD you are trying to boot from.</DIV>
<DIV>&nbsp;</DIV>
<DIV>derek</DIV>
<DIV>HP CE<BR><BR><B><I>Thibaut VARENE &lt;varenet@esiee.fr&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">First of all, this is definitly the LAST time I answer a private mail<BR>coming from a m-l thread. Nothing personnal there, but you're not the<BR>first one, and i'm getting tired repeating the same remarks again and<BR>again.<BR><BR>I'll add a comment about not answering mails in private on the<BR>mailing-list webpage right now since it's not clearly stated.<BR><BR>The most obvious reason NOT TO DO SO is that I HAVE NO CLUE WHAT'S WRONG<BR>with your setup, but somebody else on the m-l might.<BR><BR>Since you didn't CC'd the m-l, if i hadn't posted back to the m-l you<BR>would have lost any chance to get that info.<BR><BR>And for what it's worth, this is not a private lesson. m-l archives are<BR>useful f
 or other buggers to find info in it, darn it! :P<BR><BR><BR>Thibaut VARENE<BR>The PA/Linux ESIEE Team<BR>http://pateam.esiee.fr/<BR><BR>On Thu, 17 Apr 2003 14:27:58 -0700 (PDT)<BR>"K. David Prince" <KDP@HANHET.LOEW.WASHINGTON.EDU>wrote:<BR><BR>&gt; Well, I eliminated hint #3. I did pull out the CD-ROM. I didn't find<BR>&gt; anything that obviously pointed to the block size. Here's the info I<BR>&gt; have off of the CD-ROM:<BR>&gt; <BR>&gt; HP CS P/N: A1658-60019 &lt;== Bootable? I can't find any references on<BR>&gt; this.<BR>&gt; <BR>&gt; "Class 1 Laser Product Per IEC 825"<BR>&gt; <BR>&gt; Jumper block items:<BR>&gt; <BR>&gt; ID1 N/J<BR>&gt; ID2 Jumper<BR>&gt; ID4 N/J<BR>&gt; Parity Jumper<BR>&gt; Term On/Off N/J<BR>&gt; Prv/Alw N/J &lt;== This one may be what I'm looking for.<BR>&gt; 
 Test N/J<BR>&gt; Power Supply N/J<BR>&gt; <BR>&gt; N/J = "No Jumper"<BR>&gt; <BR>&gt; Is there a special place to find the block size jumper?<BR>&gt; <BR>&gt; Dave<BR>&gt; <BR>&gt; On Thu, 17 Apr 2003, Thibaut VARENE wrote:<BR>&gt; <BR>&gt; &gt; 1) You have a non-bootable CD drive (like some cd recorders and some<BR>&gt; &gt; incompatible cd readers)<BR>&gt; &gt; 2) the block size (usually a jumper on the back) is incorrectly set.<BR>&gt; &gt; Check it's '512'.<BR>&gt; &gt; 3) You have put the CD upside down in the cd tray.<BR>&gt; <BR>&gt; <BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><br><hr size=1>Do you Yahoo!?<br>
<a href="http://us.rd.yahoo.com/search/mailsig/*http://search.yahoo.com">The New Yahoo! Search</a> - Faster. Easier. Bingo.
--0-268550428-1050627617=:40984--


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On Wed, Apr 16, 2003 at 03:41:33PM +0100, Alan Cox wrote:
> There are several ways but that would be subverting a rights management
> system and I don't wish to get the list owners in trouble.

Alan,
interesting comment.  HPUX/parisc does not have "rights management"
once one has access to the console.

Bjorn already posted the "proper" method (ISL> hpux -is).

grant


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From: Randolph Chung <randolph@tausq.org>
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In reference to a message from Randolph Chung, dated Apr 13:
> i ran 'readprofile' on a 2.5.67-pa3 UP kernel (a500, 64-bit) with
> several different workloads. here are the numbers if anyone is
> interested.

upon future reflection, these profiles are all wrong, because we 
really need to take a before and after measurement and diff them... 
<sigh> what was i thinking?

i'll remeasure them this weekend and post new results. meanwhile, i'm 
putting a diffprof script in cvs, since no one on #kernel seems to know
of a "standard" one, and the one i got from wli is in haskell, so 
i don't understand it, and it doesn't work on parisc :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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	Hi
Does any one try the dump module ? Any feed-back ?
Anybody needs help for setup ?

	Thanks.

-- 
	Vidal Bruno, (770-4271)
         SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com



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Bruno,

>
>	Hi
>Does any one try the dump module ? Any feed-back ?
>Anybody needs help for setup ?
>
Very sorry, I have not yet find time to test your patch.

My bad in fact, I spent much time for 2.4.21-pre pa patch which I submit
to Randolph to verify my job.

Next week I will out of office, but after this I will try it (just be more
patient)

Thanks for your undertand,
Joel


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Willy and all,

>
>On Wed, Apr 16, 2003 at 06:44:11PM +0200, Joel Soete wrote:
>> Well I already create:
>> a chunck containing debian-configs (I call it 00_parisc_debian-configs.patch)
>> [about 140k] (would it be submited?)
>
>No, I don't think this should be submitted.  No other architecture does
this.
>
>> another chunk containing all parisc specific (named 01_parisc.patch)
containing
>> arch/parisc, include/asm-parisc and another noticed "parisc specific"
[about
>> 160k]
>
>sounds good.  be sure this applies to alan's/marcelo's tree as they've
>taken updates since 2.4.20 was released.
>
I already submitted a first draft to Randolph (as foreseen about 160Kb without
new's Grant ql driver) so that he could check it when he find some time.

In the meantime, I rebuild this with gcc-3.2 64bits which seems to run fine
on my b2k (ide cdrom, nfs, gcc,... seems ok). Just with this compiler I met
a pb to build the new module driver 3wxxx. So I will first re-install gcc-3.0
before all.

Thanks,
    Joel




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>In the meantime, I rebuild this with gcc-3.2 64bits which seems to run fine
>on my b2k (ide cdrom, nfs, gcc,... seems ok). Just with this compiler I
met
>a pb to build the new module driver 3wxxx. So I will first re-install gcc-3.0
>before all.
>
A small update to just mention that there is no pb with gcc-hppa64-3.0.4.

Joel

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From - Thu Nov 08 21:27:35 2018
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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: [parisc-linux] PGX64 alias Rage xl ?
Date: Fri, 18 Apr 2003 17:43:01 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:18306

Hi all,

I just recieve a free PGX64 pci card (Rage xl 215R5LASB41 chip) which I am
proposing to test on a b180.

Do I have some chance to make it works (well I already notice that I will
have to wait 2.4.21 to have ati fb support)?

All advises will be well come,

Joel


---------------------------------
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Economisez jusqu' 25% avec Tiscali Complete !
Offre spciale : premire anne d'abonnement offerte.
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From - Thu Nov 08 21:27:35 2018
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From: Randolph Chung <tausq@debian.org>
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Subject: [parisc-linux] [3.3 regression] [hppa] Segfault when building jade
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>Category:       c++
>Synopsis:       [3.3 regression] [hppa] Segfault when building jade
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Originator:     Randolph Chung <tausq@debian.org>
>Release:        gcc version 3.3 20030412 (Debian prerelease)
>Environment:
tausq@ios:~$ uname -a
Linux ios 2.5.67-pa4 #79 Wed Apr 16 20:16:49 PDT 2003 parisc64 unknown unknown GNU/Linux
tausq@ios:~$ g++ -v
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.3 20030412 (Debian prerelease)
>Description:
Building the code below gives:

tausq@ios:~/debian/jade-1.2.1/jade$ g++ -v -c bug.cxx
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.3 20030412 (Debian prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.3/cc1plus -quiet -v -D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=0 -D_GNU_SOURCE bug.cxx -D__GNUG__=3 -quiet -dumpbase bug.cxx -auxbase bug -version -o /tmp/ccExza7t.s
GNU C++ version 3.3 20030412 (Debian prerelease) (hppa-linux)
        compiled by GNU C version 3.3 20030412 (Debian prerelease).
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/usr/hppa-linux/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/include/c++/3.3
 /usr/include/c++/3.3/hppa-linux
 /usr/include/c++/3.3/backward
 /usr/local/include
 /usr/lib/gcc-lib/hppa-linux/3.3/include
 /usr/include
End of search list.
bug.cxx:14: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

The code builds fine with g++-3.2.

This test case was extracted from the MifFOTBuilder.cxx file from the jade package.
>How-To-Repeat:
g++ -c bug.cxx

--------------8< bug.cxx 8<----------------
template<class T> class String { };

class MifDoc {
  public:
    struct T_string : public String<char> { };
    typedef T_string        T_tagstring;

    struct TagStream {
        enum TagStreamClass { tsTagStream, tsTextFlow, tsCell, tsPara } TagStreamClass;

        T_tagstring InitialPgfTag;
    };

    struct TextFlow : public TagStream { };
};

>Fix:

>Unformatted:


From - Thu Nov 08 21:27:35 2018
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From: Randolph Chung <tausq@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] c++/10438: [3.3 regression] [hppa] Segfault when building jade
Date: 19 Apr 2003 05:14:31 -0000
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>Number:         10438
>Category:       c++
>Synopsis:       [3.3 regression] [hppa] Segfault when building jade
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Sat Apr 19 05:16:01 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Randolph Chung <tausq@debian.org>
>Release:        gcc version 3.3 20030412 (Debian prerelease)
>Organization:
>Environment:
tausq@ios:~$ uname -a
Linux ios 2.5.67-pa4 #79 Wed Apr 16 20:16:49 PDT 2003 parisc64 unknown unknown GNU/Linux
tausq@ios:~$ g++ -v
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.3 20030412 (Debian prerelease)
>Description:
Building the code below gives:

tausq@ios:~/debian/jade-1.2.1/jade$ g++ -v -c bug.cxx
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.3 20030412 (Debian prerelease)
 /usr/lib/gcc-lib/hppa-linux/3.3/cc1plus -quiet -v -D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=0 -D_GNU_SOURCE bug.cxx -D__GNUG__=3 -quiet -dumpbase bug.cxx -auxbase bug -version -o /tmp/ccExza7t.s
GNU C++ version 3.3 20030412 (Debian prerelease) (hppa-linux)
        compiled by GNU C version 3.3 20030412 (Debian prerelease).
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/usr/hppa-linux/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/include/c++/3.3
 /usr/include/c++/3.3/hppa-linux
 /usr/include/c++/3.3/backward
 /usr/local/include
 /usr/lib/gcc-lib/hppa-linux/3.3/include
 /usr/include
End of search list.
bug.cxx:14: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

The code builds fine with g++-3.2.

This test case was extracted from the MifFOTBuilder.cxx file from the jade package.
>How-To-Repeat:
g++ -c bug.cxx

--------------8< bug.cxx 8<----------------
template<class T> class String { };

class MifDoc {
  public:
    struct T_string : public String<char> { };
    typedef T_string        T_tagstring;

    struct TagStream {
        enum TagStreamClass { tsTagStream, tsTextFlow, tsCell, tsPara } TagStreamClass;

        T_tagstring InitialPgfTag;
    };

    struct TextFlow : public TagStream { };
};

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:


From - Thu Nov 08 21:27:36 2018
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From: "Giovanni Bajo" <giovannibajo@libero.it>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: c++/10438: [3.3 regression] [hppa] Segfault when building jade
Date: Sat, 19 Apr 2003 17:05:11 +0200
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http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&p
r=10438

Confirmed. Slightly reduced testcase:

--------------------------------
struct Foo
{
    struct Nested1
    {
        enum E
        {
            v1,v2,v3,v4,v5,v6
        } E;
    };

    struct Nested2 : public Nested1
    {};
};

--------------------------------
pr10438.cpp:12: internal compiler error: Segmentation fault
Please submit a full bug report,


It looks like a memory corruption bug, while playing with it I had the ICE
on and off simply by changing variable names. You can also see that the ICE
disappears if you remove some elements from within the enum. It seems that
the culript is the variable defined with the same name of the enum type.

It's a regression on 3.3 and 3.4 with respect to 3.2, where it compiles
fine.

Giovanni Bajo



From - Thu Nov 08 21:27:36 2018
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From: Randolph Chung <tausq@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: c++/10438: [3.3 regression] [hppa] Segfault when building jade
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> Confirmed. Slightly reduced testcase:

Thanks. 

Running under gdb, I see:

(gdb) run bug.cxx
Starting program: /home/tausq/gcc/build-3.3/gcc/cc1plus bug.cxx

Program received signal SIGSEGV, Segmentation fault.
setup_class_bindings (name=0x401c9780, type_binding_p=1)
    at ../../gcc-3.3/gcc/cp/search.c:2560
2560          if (TREE_CODE (type_binding) == TREE_LIST
(gdb) bt
#0  setup_class_bindings (name=0x401c9780, type_binding_p=1)
    at ../../gcc-3.3/gcc/cp/search.c:2560
#1  0x00094410 in dfs_push_type_decls (binfo=0x401c9b40, data=0x401cf010)
    at ../../gcc-3.3/gcc/cp/search.c:2615
#2  0x00092f50 in dfs_walk_real (binfo=0x401c9b40, prefn=0,
    postfn=0x362c0e <__JCR_LIST__+486>, qfn=0x362bde <__JCR_LIST__+438>,
    data=0x0) at ../../gcc-3.3/gcc/cp/search.c:1911
[...]

type_binding is NULL after lookup_member()...

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi all,

I'm trying to understand the FP argument passing convention on 32-bit
palinux... I don't think I have it quite right. Can anyone comment on
the following?

1) float-type arguments
   float add(float a, float b, float c, float d)
        a -> fr4L
        b -> fr5L
        c -> fr6L
        d -> fr7L
        retval = fr4L

   If >4 arguments, the rest are passed on the stack
   starting at sp-52 in the caller's frame

2) double-type arguments
   double add(double a, double b, double c, double d)
        a -> fr5
        b -> fr7
        c -> sp-56 in caller frame
        d -> sp-64 in caller frame
        retval = fr4

   Is it correct that the high-order 32-bit of fr5 is in fr5L
   and the lower bits in fr5R?

3) What happens when you have a mix argument function? e.g.
   double foo(int a, float b, double c)

        a -> r26
        b -> fr5L
        c -> fr7
        retval = fr4

   I don't quite understand the logic here :) What happens when
   there are more and they need to go on the stack? What's the 
   arrangement?

I've looked through the SOM 32-bit runtime but (at least to me)
it doesn't talk about this very clearly. I've been experimenting with
gcc -S but I'd rather get a definitive answer :)

Also, for passing structures by value to functions, is this correct?
a) if sizeof(struct) <= 4, pass in register
b) if sizeof(struct) <= 8), pass in even-numbered register pairs 
c) if sizeof(struct) > 8, pass a pointer and callee will copy the
   structure?

thanks
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> Hi all,
> 
> I'm trying to understand the FP argument passing convention on 32-bit
> palinux... I don't think I have it quite right. Can anyone comment on
> the following?
> 
> 1) float-type arguments
>    float add(float a, float b, float c, float d)
>         a -> fr4L
>         b -> fr5L
>         c -> fr6L
>         d -> fr7L
>         retval = fr4L
> 
>    If >4 arguments, the rest are passed on the stack
>    starting at sp-52 in the caller's frame

Yes.

> 2) double-type arguments
>    double add(double a, double b, double c, double d)
>         a -> fr5
>         b -> fr7
>         c -> sp-56 in caller frame
>         d -> sp-64 in caller frame
>         retval = fr4
> 
>    Is it correct that the high-order 32-bit of fr5 is in fr5L
>    and the lower bits in fr5R?

Yes.  Big endian.

> 3) What happens when you have a mix argument function? e.g.
>    double foo(int a, float b, double c)
> 
>         a -> r26
>         b -> fr5L
>         c -> fr7
>         retval = fr4

Yes.

>    I don't quite understand the logic here :) What happens when
>    there are more and they need to go on the stack? What's the 
>    arrangement?

They go on the stack.  On the 32-bit port, stack arguments grow
downward.  The slots are word size.  Doubles are aligned to a
double word boundary.  For the first four slots, arguments go
in registers.  However, there are backup slots reserved on the
stack that the callee can use if it wants.

When there is a prototype for the argument and it is to be placed
in one of the first four slots, it will be passed according to its
type.  If there is no prototype, we put in both registers.

> I've looked through the SOM 32-bit runtime but (at least to me)
> it doesn't talk about this very clearly. I've been experimenting with
> gcc -S but I'd rather get a definitive answer :)

Should work.  Look at function_arg in pa.c.  Under hpux, there are
some small differences as the linker does argument relocation.

> Also, for passing structures by value to functions, is this correct?
> a) if sizeof(struct) <= 4, pass in register
> b) if sizeof(struct) <= 8), pass in even-numbered register pairs 
> c) if sizeof(struct) > 8, pass a pointer and callee will copy the
>    structure?

Yes.  Don't ask about the padding.  The data is right justified.
That's done with magic.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Hi Dave,

Thanks for the quick reply.

I thought I understood it, but this one baffles me:

static int floating(int a, float b, double c, long double d, int e)

i would have guessed this mapped to:

a -> gr26   (sp-36)
b -> fr4L   (sp-40)
c -> fr7    (sp-48)
d -> sp-56
e -> sp-64

but according to gcc, e is at sp-60.

How come?

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Sat, Apr 19, 2003 at 11:40:31PM -0700, Randolph Chung wrote:
> static int floating(int a, float b, double c, long double d, int e)
> 
> i would have guessed this mapped to:
> 
> a -> gr26   (sp-36)
> b -> fr4L   (sp-40)
> c -> fr7    (sp-48)
> d -> sp-56
> e -> sp-64
> 
> but according to gcc, e is at sp-60.

ehm.. looks like -60 to me.  Here:

a gets bytes 33-36 (4 bytes)
b gets bytes 37-40 (4 bytes)
c gets bytes 41-48 (8 bytes)
d gets bytes 49-56 (8 bytes)
e gets bytes 57-60 (4 bytes)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> I thought I understood it, but this one baffles me:
> 
> static int floating(int a, float b, double c, long double d, int e)
> 
> i would have guessed this mapped to:
> 
> a -> gr26   (sp-36)
> b -> fr4L   (sp-40)
> c -> fr7    (sp-48)
> d -> sp-56
> e -> sp-64
> 
> but according to gcc, e is at sp-60.

int arguments only need word alignment. 'd' occupies bytes sp-56 to sp-49.

A long double is the same as a double (64-bits) on hppa-linux.  I'd hoped
that HP would make their quad library available but so far it hasn't
happened.  As far as I know, quad precision has never been implemented
in hardware.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Xref: news.gmane.org gmane.linux.ports.parisc:18316

Synopsis: [3.3 regression] [hppa] Segfault when building jade

Responsible-Changed-From-To: unassigned->nathan
Responsible-Changed-By: nathan
Responsible-Changed-When: Sun Apr 20 17:49:23 2003
Responsible-Changed-Why:
    fixed
State-Changed-From-To: open->closed
State-Changed-By: nathan
State-Changed-When: Sun Apr 20 17:49:23 2003
State-Changed-Why:
    dup of 10405

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10438


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Hi all,

We have a bts setup at bugs.parisc-linux.org, but it hasn't been touched
for a very long time, and the only purpose it seems to serve nowadays is
to archive spam. Should we just remove it? There are a lot of items
there that remain "TODO" items... but perhaps a better way to keep
track of those is to put a todo list in cvs (we already have one for the
kernel... we can start one for userspace stuff too), and we can link to
it via viewcvs from the web page.

Any opinions?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Joel Soete <joel.soete@tiscali.be>
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Subject: [parisc-linux] How to put patch 2.4.21 available in ftp.p-l.o?
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Hi all,

As mentioned in other mails, I would like to make my patch 
2.4.21-pre7-pa3x available for all for revision.
(I already test it with success in 32bits and 64bits on a b2k compiled 
with gcc-3.0 but pb with gcc-3.2).

The best place would be in ftp.p-l.o (about 160k uncompresed so not very 
helpfull to insert in a mail) but I just have anymous access. So can 
somebody help me.

Thanks, 
    Joel




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> We have a bts setup at bugs.parisc-linux.org, but it hasn't been touched
> for a very long time, and the only purpose it seems to serve nowadays is
> to archive spam. Should we just remove it? There are a lot of items
> there that remain "TODO" items... but perhaps a better way to keep
> track of those is to put a todo list in cvs (we already have one for the
> kernel... we can start one for userspace stuff too), and we can link to
> it via viewcvs from the web page.

I'm all for:

a. Removing the BTS.
b. Adding userspace cvs-based TODO list.

c.



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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] How to put patch 2.4.21 available in ftp.p-l.o?
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Joel Soete wrote:
> As mentioned in other mails, I would like to make my patch 
> 2.4.21-pre7-pa3x available for all for revision.

(he meant "for all to review")

Joel mailed them to me and I've put them under:
	ftp://ftp.parisc-linux.org/patches/2.4.21-pre7-pa3x/

grundler@dsl2:/home/ftp/patches/2.4.21-pre7-pa3x$ ls
00_Parisc_Debian-configs.patch.bz2  04_Diva_support.patch.bz2
01_Parisc.patch.bz2                 05_generic-tree.patch.bz2
02_CpqfcTS.patch.bz2                patch-2.4.21-pre7-pa3x.bz2
03_Sym53c8.patch.bz2

thanks for preparing this!
grant


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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] Re: HPA4246A framebuffer device.
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On Mon, Apr 21, 2003 at 03:45:36PM -0700, K. David Prince wrote:
> I'm setting up one of our C180-XL machines.  Debian 3.0 is installed and X
> runs on the internal STI device.  This machine has a second video card,
> the HPA4246A.  I'd like boot with this as our primary display.  I've

This is a Visualize-48XP graphics card.  There's no support listed for
it in stifb.  It might be able to work if anyone has specs...

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Re: HPA4246A framebuffer device.
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On Wednesday 23 April 2003 08:53 pm, Matthew Wilcox wrote:
> On Mon, Apr 21, 2003 at 03:45:36PM -0700, K. David Prince wrote:
> > I'm setting up one of our C180-XL machines.  Debian 3.0 is installed and
> > X runs on the internal STI device.  This machine has a second video card,
> > the HPA4246A.  I'd like boot with this as our primary display.  I've
>
> This is a Visualize-48XP graphics card.  There's no support listed for
> it in stifb.  It might be able to work if anyone has specs...

Hi Willy,

yes, you are right:
#define CRT_ID_THUNDER2         0x2F8D570E      /* Thunder 2 VISUALIZE 48 XP*/

Can't someone insided HP take a look what needs to be done, or
if it's compatible to one of the supported cards ?

Regards,
Helge



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From: Arjen Hommersom <arjenh@chello.nl>
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Subject: [parisc-linux] sstfb crash
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Hi,

I just tried to test my Voodoo2 card on a C240 machine. I compiled 2.4.20-pa32 
and set CONFIG_FB_VOODOO1=m. The compiler was 3.0.4. Unfortunately it crashes 
when i try to load it. The following messages appear just before it locks up 
hard:

# modprobe sstfb
sstfb : Voodoo2 with ICS ICS5342 dac
sstfb: framebuffer at 0xf3400000, mapped at 0xf3400000, size 2 Mb

Stack dump:
 1ec64900:  0004ff0e 10159e6c 1ec64880 002acc20
 1ec648f0:  5758595a 0003242c 0003556c 00000000
 1ec648e0:  10650800 00000000 1035e1df 1ebe5a14
 1ec648d0:  6269745f 1ebe5a14 6269745f 1ec64710
 1ec648c0:  6c6f636b 73747576 00000000 1ec647a0
 1ec648b0:  000001ff 00032adc 1f185340 0000000f

Kernel addresses on the stack:
[<10159e6c>]  [<0003242c>]  [<0003556c>]  [<00032adc>]
[<000355cc>]  [<0003556c>]  [<00034fee>]  [<00034940>]
[<00034fb4>]  [<0003556c>]  [<000355a4>]  [<101f1ac8>]
[<000355a4>]  [<101f1b90>]  [<000355a4>]  [<000345c8>]
[<1011cff0>]  [<101049fc>]  [<00032060>]  [<10109f90>]
[<0002b800>]  [<10109084>]  [<10108cf4>]  [<1013eaac>]
[<1013d610>]  [<1014db28>]  [<1011f77c>]

Kernel Fault: Code=15 regs=1ec64900 (Addr=eae3e729)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110
r00-03  00000000 102ad810 101f5f68 1ebe5ab4
r04-07  00000000 00000000 00000000 1ebe5800
r08-11  ffffffff 1ec64810 6269745f 1ebaa000
r12-15  1fdabcc0 1ec64550 000435a8 00042da8
r16-19  00042da8 00042da8 000521c8 00450192
r20-23  001f5dce 2bb0e9ab eae3e71d 745f6c6f
r24-27  00000000 00000000 745f6c6f 10292010
r28-31  0000000f f3000000 1ec64900 101f20d4
sr0-3   00000000 0000034d 00000000 0000034d 
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IADQ: 10135394 10135398
 IIR: 0ed8109a    ISR: 00000000  IOR: eae3e729
 CPU:        0   CR30: 1ec64000 CR31: 10348000
 ORIG_R28: 102acdc0

The System.map can be found at http://213.46.122.180/System.map.bz2

Any ideas?

Arjen Hommersom


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From: Joel Soete <joel.soete@tiscali.be>
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Subject: Re: [parisc-linux] sstfb crash
Date: Fri, 25 Apr 2003 16:57:39 +0000
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Arjen Hommersom wrote:

>Hi,
>
>I just tried to test my Voodoo2 card on a C240 machine. I compiled 2.4.20-pa32 
>and set CONFIG_FB_VOODOO1=m. The compiler was 3.0.4. Unfortunately it crashes 
>when i try to load it. The following messages appear just before it locks up 
>hard:
>
># modprobe sstfb
>sstfb : Voodoo2 with ICS ICS5342 dac
>sstfb: framebuffer at 0xf3400000, mapped at 0xf3400000, size 2 Mb
>
>Stack dump:
> 1ec64900:  0004ff0e 10159e6c 1ec64880 002acc20
> 1ec648f0:  5758595a 0003242c 0003556c 00000000
> 1ec648e0:  10650800 00000000 1035e1df 1ebe5a14
> 1ec648d0:  6269745f 1ebe5a14 6269745f 1ec64710
> 1ec648c0:  6c6f636b 73747576 00000000 1ec647a0
> 1ec648b0:  000001ff 00032adc 1f185340 0000000f
>
>Kernel addresses on the stack:
>[<10159e6c>]  [<0003242c>]  [<0003556c>]  [<00032adc>]
>[<000355cc>]  [<0003556c>]  [<00034fee>]  [<00034940>]
>[<00034fb4>]  [<0003556c>]  [<000355a4>]  [<101f1ac8>]
>[<000355a4>]  [<101f1b90>]  [<000355a4>]  [<000345c8>]
>[<1011cff0>]  [<101049fc>]  [<00032060>]  [<10109f90>]
>[<0002b800>]  [<10109084>]  [<10108cf4>]  [<1013eaac>]
>[<1013d610>]  [<1014db28>]  [<1011f77c>]
>
>Kernel Fault: Code=15 regs=1ec64900 (Addr=eae3e729)
>
>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>PSW: 00000000000001001111111100001110
>r00-03  00000000 102ad810 101f5f68 1ebe5ab4
>r04-07  00000000 00000000 00000000 1ebe5800
>r08-11  ffffffff 1ec64810 6269745f 1ebaa000
>r12-15  1fdabcc0 1ec64550 000435a8 00042da8
>r16-19  00042da8 00042da8 000521c8 00450192
>r20-23  001f5dce 2bb0e9ab eae3e71d 745f6c6f
>r24-27  00000000 00000000 745f6c6f 10292010
>r28-31  0000000f f3000000 1ec64900 101f20d4
>sr0-3   00000000 0000034d 00000000 0000034d 
>sr4-7   00000000 00000000 00000000 00000000
>
>IASQ: 00000000 00000000 IADQ: 10135394 10135398
> IIR: 0ed8109a    ISR: 00000000  IOR: eae3e729
> CPU:        0   CR30: 1ec64000 CR31: 10348000
> ORIG_R28: 102acdc0
>
>The System.map can be found at http://213.46.122.180/System.map.bz2
>
>Any ideas?
>
>  
>
It would be also of good help if you try to run the dump_analyser.sh (T. 
Varene) on this 'dump' with your kernel.
You can find it at 
<http://cvs.parisc-linux.org/build-tools/dump_analyser.sh>

hth,
Joel




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From: Arjen Hommersom <arjenh@chello.nl>
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Subject: Re: [parisc-linux] sstfb crash
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On Friday 25 April 2003 18:57, Joel Soete wrote:
> >I just tried to test my Voodoo2 card on a C240 machine. I compiled
> > 2.4.20-pa32 and set CONFIG_FB_VOODOO1=m. The compiler was 3.0.4.
> > Unfortunately it crashes when i try to load it. The following messages
> > appear just before it locks up hard: [dump]
>
> It would be also of good help if you try to run the dump_analyser.sh (T.
> Varene) on this 'dump' with your kernel.

Thanks for your reply. I have attached the output of the dump_analyser.

regards,
Arjen Hommersom
--Boundary-00=_t6Vq+MbF0sxL4lc
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  charset="iso-8859-1";
  name="dumpoutput.txt"
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IAOQ = 10135394
Func: kfree, Off: 34, Addr: 0x10135394
10135390:	00 01 0d 60 	ssm 1,r0
10135394:	35 d3 00 30 	ldo 18(r14),r19
10135398:	4a 63 00 c8 	ldw 64(r19),r3
1013539c:	36 73 00 c8 	ldo 64(r19),r19

GR0 = 00000000

GR1 = 102ad810
Func: vm_table, Off: c, Addr: 0x102ad810
102ad810:	92 e0 b0 64 	cmpiclr,>> 32,r23,r0
102ad814:	34 17 00 64 	ldi 32,r23
102ad818:	8a e6 80 48 	cmpb,>>= r6,r23,102ad844 <tcp_retransmit_timer+0xe4>
102ad81c:	34 05 00 02 	ldi 1,r5

GR2 = 101f5f68
Func: fb_alloc_cmap, Off: 3c, Addr: 0x101f5f68
101f5f60:	eb f8 1d 9c 	b,l 10227e34 <sr_audio_ioctl+0x2b4>,r31
101f5f64:	0b 83 0a 03 	add,l r3,ret0,r3
101f5f68:	08 1d 02 5a 	copy ret1,r26
101f5f6c:	08 ba 0a 1a 	add,l r26,r5,r26

GR3 = 1ebe5ab4

GR4 = 00000000

GR5 = 00000000

GR6 = 00000000

GR7 = 1ebe5800

GR8 = ffffffff

GR9 = 1ec64810

GR10 = 6269745f

GR11 = 1ebaa000

GR12 = 1fdabcc0

GR13 = 1ec64550

GR14 = 000435a8

GR15 = 00042da8

GR16 = 00042da8

GR17 = 00042da8

GR18 = 000521c8

GR19 = 00450192

GR20 = 001f5dce

GR21 = 2bb0e9ab

GR22 = eae3e71d

GR23 = 745f6c6f

GR24 = 00000000

GR25 = 00000000

GR26 = 745f6c6f

GR27 = 10292010
Func: $global$, Off: 0, Addr: 0x10292010
10292010:	6f cd 01 00 	stw,ma r13,80(sp)

GR28 = 0000000f

GR29 = f3000000

GR30 = 1ec64900

GR31 = 101f20d4
Func: pci_write_config_dword, Off: 40, Addr: 0x101f20d4
101f20d0:	0a 98 02 14 	and r24,r20,r20
101f20d4:	34 13 00 80 	ldi 40,r19
101f20d8:	82 93 20 70 	cmpb,= r19,r20,101f2118 <set_geometry_intr+0x70>
101f20dc:	34 1c 00 00 	ldi 0,ret0

Kernel symbols on the stack:
[<10159e6c>]: Func: seq_read, Off: 318, Addr: 0x10159e6c
[<0003242c>]: 
[<0003556c>]: 
[<00032adc>]: 
[<000355cc>]: 
[<0003556c>]: 
[<00034fee>]: 
[<00034940>]: 
[<00034fb4>]: 
[<0003556c>]: 
[<000355a4>]: 
[<101f1ac8>]: Func: pci_announce_device, Off: 60, Addr: 0x101f1ac8
[<000355a4>]: 
[<101f1b90>]: Func: pci_register_driver, Off: 98, Addr: 0x101f1b90
[<000355a4>]: 
[<000345c8>]: 
[<1011cff0>]: Func: sys_init_module, Off: 640, Addr: 0x1011cff0
[<101049fc>]: Func: handle_interruption, Off: 150, Addr: 0x101049fc
[<00032060>]: 
[<10109f90>]: Func: syscall_exit, Off: 0, Addr: 0x10109f90
[<0002b800>]: 
[<10109084>]: Func: intr_check_sig, Off: 0, Addr: 0x10109084
[<10108cf4>]: Func: _switch_to_ret, Off: 0, Addr: 0x10108cf4
[<1013eaac>]: Func: chrdev_open, Off: 54, Addr: 0x1013eaac
[<1013d610>]: Func: dentry_open, Off: 1e8, Addr: 0x1013d610
[<1014db28>]: Func: locate_fd, Off: 88, Addr: 0x1014db28
[<1011f77c>]: Func: it_real_fn, Off: 0, Addr: 0x1011f77c

Done.

--Boundary-00=_t6Vq+MbF0sxL4lc--



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I have two questions arising from an attempt to port some profiling code to pa-risc.  Grant Grundler suggested I ask here.

1) I need to retrieve the pc value from the sigcontext structure passed to a timer signal handler.  In an earlier message, Paul Bame pointed me at sc_iaoq.  After a bit more reading, my conclusion was that sc_iaoq[0] should be a reasonable value to use as a sampled pc.  However I have been unable to see anything reasonable in that slot (or sc_iaoq[1] for that matter).  Presumably a struct sigcontext pointer is always passed as the third parameter to a signal handler?  And it's filled in for timer interrrupts?  What does profil() do?  (I tried to read the code, but it's hard to trace through all the configuration stuff.)

2) If I mark a C function as a constructor function, and compile it with -fPIC, it seems to run before globals are properly accessible.  The retrieval of the address of a global through the global offset table seems to return a bad address and the access faults.  Are there known issues in this area?  (The offending function actually ends up in the main program, if that matters.)

Please cc: me in the reply.

Thanks.

Hans


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Xref: news.gmane.org gmane.linux.ports.parisc:18327

Arjen Hommersom wrote:

>On Friday 25 April 2003 18:57, Joel Soete wrote:
>  
>
>>>I just tried to test my Voodoo2 card on a C240 machine. I compiled
>>>2.4.20-pa32 and set CONFIG_FB_VOODOO1=m. The compiler was 3.0.4.
>>>Unfortunately it crashes when i try to load it. The following messages
>>>appear just before it locks up hard: [dump]
>>>      
>>>
>>It would be also of good help if you try to run the dump_analyser.sh (T.
>>Varene) on this 'dump' with your kernel.
>>    
>>
>
>Thanks for your reply. I have attached the output of the dump_analyser.
>
>regards,
>Arjen Hommersom
>
>------------------------------------------------------------------------
>
Interesting, isn't it :)

>IAOQ = 10135394
>Func: kfree, Off: 34, Addr: 0x10135394
>
here is the kernel function which made panic kernel. (why? we need 
expert help)

>10135390:	00 01 0d 60 	ssm 1,r0
>10135394:	35 d3 00 30 	ldo 18(r14),r19
>10135398:	4a 63 00 c8 	ldw 64(r19),r3
>1013539c:	36 73 00 c8 	ldo 64(r19),r19
>
>GR0 = 00000000
>
>GR1 = 102ad810
>Func: vm_table, Off: c, Addr: 0x102ad810
>102ad810:	92 e0 b0 64 	cmpiclr,>> 32,r23,r0
>102ad814:	34 17 00 64 	ldi 32,r23
>102ad818:	8a e6 80 48 	cmpb,>>= r6,r23,102ad844 <tcp_retransmit_timer+0xe4>
>102ad81c:	34 05 00 02 	ldi 1,r5
>
>GR2 = 101f5f68
>Func: fb_alloc_cmap, Off: 3c, Addr: 0x101f5f68
>101f5f60:	eb f8 1d 9c 	b,l 10227e34 <sr_audio_ioctl+0x2b4>,r31
>101f5f64:	0b 83 0a 03 	add,l r3,ret0,r3
>101f5f68:	08 1d 02 5a 	copy ret1,r26
>101f5f6c:	08 ba 0a 1a 	add,l r26,r5,r26
>
>GR3 = 1ebe5ab4
>
>GR4 = 00000000
>
>GR5 = 00000000
>
>GR6 = 00000000
>
>GR7 = 1ebe5800
>
>GR8 = ffffffff
>
>GR9 = 1ec64810
>
>GR10 = 6269745f
>
>GR11 = 1ebaa000
>
>GR12 = 1fdabcc0
>
>GR13 = 1ec64550
>
>GR14 = 000435a8
>
>GR15 = 00042da8
>
>GR16 = 00042da8
>
>GR17 = 00042da8
>
>GR18 = 000521c8
>
>GR19 = 00450192
>
>GR20 = 001f5dce
>
>GR21 = 2bb0e9ab
>
>GR22 = eae3e71d
>
>GR23 = 745f6c6f
>
>GR24 = 00000000
>
>GR25 = 00000000
>
>GR26 = 745f6c6f
>
>GR27 = 10292010
>Func: $global$, Off: 0, Addr: 0x10292010
>10292010:	6f cd 01 00 	stw,ma r13,80(sp)
>
>GR28 = 0000000f
>
>GR29 = f3000000
>
>GR30 = 1ec64900
>
>GR31 = 101f20d4
>Func: pci_write_config_dword, Off: 40, Addr: 0x101f20d4
>
iirc this is the calling function

>101f20d0:	0a 98 02 14 	and r24,r20,r20
>101f20d4:	34 13 00 80 	ldi 40,r19
>101f20d8:	82 93 20 70 	cmpb,= r19,r20,101f2118 <set_geometry_intr+0x70>
>101f20dc:	34 1c 00 00 	ldi 0,ret0
>
>Kernel symbols on the stack:
>[<10159e6c>]: Func: seq_read, Off: 318, Addr: 0x10159e6c
>[<0003242c>]: 
>[<0003556c>]: 
>[<00032adc>]: 
>[<000355cc>]: 
>[<0003556c>]: 
>[<00034fee>]: 
>[<00034940>]: 
>[<00034fb4>]: 
>[<0003556c>]: 
>[<000355a4>]: 
>[<101f1ac8>]: Func: pci_announce_device, Off: 60, Addr: 0x101f1ac8
>[<000355a4>]: 
>[<101f1b90>]: Func: pci_register_driver, Off: 98, Addr: 0x101f1b90
>[<000355a4>]: 
>[<000345c8>]: 
>[<1011cff0>]: Func: sys_init_module, Off: 640, Addr: 0x1011cff0
>[<101049fc>]: Func: handle_interruption, Off: 150, Addr: 0x101049fc
>[<00032060>]: 
>[<10109f90>]: Func: syscall_exit, Off: 0, Addr: 0x10109f90
>[<0002b800>]: 
>[<10109084>]: Func: intr_check_sig, Off: 0, Addr: 0x10109084
>[<10108cf4>]: Func: _switch_to_ret, Off: 0, Addr: 0x10108cf4
>[<1013eaac>]: Func: chrdev_open, Off: 54, Addr: 0x1013eaac
>[<1013d610>]: Func: dentry_open, Off: 1e8, Addr: 0x1013d610
>[<1014db28>]: Func: locate_fd, Off: 88, Addr: 0x1014db28
>[<1011f77c>]: Func: it_real_fn, Off: 0, Addr: 0x1011f77c
>
>Done.
>  
>
I will be interested by expert analyse.

Sorry to not be helpfull,
    Joel




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Hans,

What code are you porting? :)

> 1) I need to retrieve the pc value from the sigcontext structure passed to a timer signal handler.  In an earlier message, Paul Bame pointed me at sc_iaoq.  After a bit more reading, my conclusion was that sc_iaoq[0] should be a reasonable value to use as a sampled pc.  However I have been unable to see anything reasonable in that slot (or sc_iaoq[1] for that matter).  Presumably a struct sigcontext pointer is always passed as the third parameter to a signal handler?  And it's filled in for timer interrrupts?  What does profil() do?  (I tried to read the code, but it's hard to trace through all the configuration stuff.)

A. What kernel are you using?
 
The reason I ask is that 64-bit kernels return broken sigcontext
pointers (for now it stuffs 64-bit values into a 32-bit values within
the sigcontext, rather it should take into account the fact that
userspace or the calling threads personality is 32-bit and truncate the
register values).

What is there to understand about profil()? Based on your PC it uses
modular arithmetic (the shift, scale, and division) to track on a coarse
scale which parts of your code are being executed.

> 2) If I mark a C function as a constructor function, and compile it with -fPIC, it seems to run before globals are properly accessible.  The retrieval of the address of a global through the global offset table seems to return a bad address and the access faults.  Are there known issues in this area?  (The offending function actually ends up in the main program, if that matters.)

B. Can we see the code?

c.



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Subject: RE: [parisc-linux] Program counter from sigcontext, constructurs 
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> -----Original Message-----
> From: Carlos O'Donell [mailto:carlos@baldric.uwo.ca]
> 
> Hans,
> 
> What code are you porting? :)
It's a new, currently rather simple, but thread-compatible, purely user-level, profiler.  It includes some infrastructure for using hardware atomic operations in reasonably portable ways.  Need less to say, PA-RISC makes a wonderful test case.
> 
> > 1) I need to retrieve the pc value from the sigcontext 
> structure passed to a timer signal handler.  In an earlier 
> message, Paul Bame pointed me at sc_iaoq.  After a bit more 
> reading, my conclusion was that sc_iaoq[0] should be a 
> reasonable value to use as a sampled pc.  However I have been 
> unable to see anything reasonable in that slot (or sc_iaoq[1] 
> for that matter).  Presumably a struct sigcontext pointer is 
> always passed as the third parameter to a signal handler?  
> And it's filled in for timer interrrupts?  What does profil() 
> do?  (I tried to read the code, but it's hard to trace 
> through all the configuration stuff.)
> 
> A. What kernel are you using?
2.4.17-64 on spe170.testdrive.hp.com.
>  
> The reason I ask is that 64-bit kernels return broken sigcontext
> pointers (for now it stuffs 64-bit values into a 32-bit values within
> the sigcontext, rather it should take into account the fact that
> userspace or the calling threads personality is 32-bit and 
> truncate the
> register values).
It sounds like that's the problem here.  Thanks.  
> 
> What is there to understand about profil()? Based on your PC it uses
> modular arithmetic (the shift, scale, and division) to track 
> on a coarse
> scale which parts of your code are being executed.
Once you get the PC in the signal handler, that's easy.  It sounds like getting the PC from a signal handler from a 32-bit executable on a 64-bit kernel is currently impossible?  I should probably focus on 64-bit executables?  Or does profil() have a way to get around the problem?
> 
> > 2) If I mark a C function as a constructor function, and 
> compile it with -fPIC, it seems to run before globals are 
> properly accessible.  The retrieval of the address of a 
> global through the global offset table seems to return a bad 
> address and the access faults.  Are there known issues in 
> this area?  (The offending function actually ends up in the 
> main program, if that matters.)
> 
> B. Can we see the code?
> 
I haven't officially released it, since I wanted to make sure it at least passed its tests on HP Linux platforms.  I do have permission to release it, so I put a preliminary snapshot at http://hpl.hp.com/personal/Hans_Boehm/qprof/qprof-0.2.tar.gz (probably not its final location).

I believe "make check" works on X86/Itanium/Alpha, but not PA.  (Feedback on the code itself is of course also gratefully accepted.)  The only problem on PA should be running qprof_test.

Thanks.

Hans


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> > > 2) If I mark a C function as a constructor function, and 
> > compile it with -fPIC, it seems to run before globals are 
> > properly accessible.  The retrieval of the address of a 
> > global through the global offset table seems to return a bad 
> > address and the access faults.  Are there known issues in 
> > this area?  (The offending function actually ends up in the 
> > main program, if that matters.)

I'm not aware of any.  All the libstdc++ test pass and this involves
running constructors in a shared library, so it would seem the PIC
register and got table must be setup.  Function pointer canonicalization
involves accessing the got table in some situations.  This can happen
in crtstuff.c which runs constructors.  Do you have a testcase?

It might be a linker issue.  There are some subtle issues with calling
PIC code that's not in a shared library.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: RE: [parisc-linux] Program counter from sigcontext, constructors
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Thanks.

It turns out the constructor issue does have a simple test case.  I assume the issues is with -fPIC code in a main program constructor?  With luck, this may only matter for my test case.  For any real use, this would be in a dynamic library.

Hans

spe170> cat constr.c
#include <stdio.h>

int x = 42;

int y;

void my_start(void) __attribute__ ((constructor));

main()
{
  printf("x, y = %d, %d \n", x, y);
  return 0;
}


void my_start(void)
{
  y = x;
}
spe170> cc -fPIC -g constr.c
spe170> ./a.out
Segmentation fault
spe170> cc -g constr.c
spe170> ./a.out
x, y = 42, 42
spe170>

> -----Original Message-----
> From: John David Anglin [mailto:dave@hiauly1.hia.nrc.ca]
> Sent: Friday, April 25, 2003 12:56 PM
> To: hans_boehm@hp.com
> Cc: carlos@baldric.uwo.ca; parisc-linux@lists.parisc-linux.org;
> hans_boehm@hp.com
> Subject: Re: [parisc-linux] Program counter from sigcontext,
> constructurs
> 
> 
> > > > 2) If I mark a C function as a constructor function, and 
> > > compile it with -fPIC, it seems to run before globals are 
> > > properly accessible.  The retrieval of the address of a 
> > > global through the global offset table seems to return a bad 
> > > address and the access faults.  Are there known issues in 
> > > this area?  (The offending function actually ends up in the 
> > > main program, if that matters.)
> 
> I'm not aware of any.  All the libstdc++ test pass and this involves
> running constructors in a shared library, so it would seem the PIC
> register and got table must be setup.  Function pointer 
> canonicalization
> involves accessing the got table in some situations.  This can happen
> in crtstuff.c which runs constructors.  Do you have a testcase?
> 
> It might be a linker issue.  There are some subtle issues with calling
> PIC code that's not in a shared library.
> 
> Dave
> -- 
> J. David Anglin                                  
> dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 
> 990-0752 (FAX: 952-6602)
> 


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Hans,

> It's a new, currently rather simple, but thread-compatible, purely user-level, profiler.  It includes some infrastructure for using hardware atomic operations in reasonably portable ways.  Need less to say, PA-RISC makes a wonderful test case.

Cool. (Could you please make your MUA wrap lines at a reasonable length?).

> > A. What kernel are you using?
> 2.4.17-64 on spe170.testdrive.hp.com.

Needs updating :)
  
> Once you get the PC in the signal handler, that's easy.  It sounds like getting the PC from a signal handler from a 32-bit executable on a 64-bit kernel is currently impossible?  I should probably focus on 64-bit executables?  Or does profil() have a way to get around the problem?

64-bit executables don't exist in Linux .... I'm working on it, if you
want to get into the glibc port please talk to me off-list :)

64-bit kernels spill 64-bit values into the 32-bit values of the
sigcontext struct. Which means you get everything in the wrong place and
much larger than you expected. This _has_ to be fixed soon, perhaps I'll
look at this code next.

c. 


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> spe170> cc -fPIC -g constr.c
> spe170> ./a.out
> Segmentation fault

I'm unable to duplicate this on gsyprf11.  I tried several gcc versions.
I'm using glibc 2.3.1-15.  ld is version 2.13.90 20030210.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Fri, Apr 25, 2003 at 02:08:38PM +0200, Arjen Hommersom wrote:
> Kernel Fault: Code=15 regs=1ec64900 (Addr=eae3e729)

data page fault - trying to access an invalid address.
 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001110
> r00-03  00000000 102ad810 101f5f68 1ebe5ab4
> r04-07  00000000 00000000 00000000 1ebe5800
> r08-11  ffffffff 1ec64810 6269745f 1ebaa000
> r12-15  1fdabcc0 1ec64550 000435a8 00042da8
> r16-19  00042da8 00042da8 000521c8 00450192
> r20-23  001f5dce 2bb0e9ab eae3e71d 745f6c6f
> r24-27  00000000 00000000 745f6c6f 10292010
> r28-31  0000000f f3000000 1ec64900 101f20d4
> sr0-3   00000000 0000034d 00000000 0000034d 
> sr4-7   00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IADQ: 10135394 10135398

"IAOQ" (not IADQ) points at the offending instruction.

grant


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> > spe170> cc -fPIC -g constr.c
> > spe170> ./a.out
> > Segmentation fault
> 
> I'm unable to duplicate this on gsyprf11.  I tried several gcc versions.
> I'm using glibc 2.3.1-15.  ld is version 2.13.90 20030210.
> 

Which versions did you try? :)

bash-2.05b$ gcc-3.0 -fPIC -g test-fpic.c; ./a.out
Segmentation fault

GNU ld version 2.13.90.0.18 20030121 Debian GNU/Linux

Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0.4/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,objc
--prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared
--with-gnu-as --with-gnu-ld --with-system-zlib --enable-long-long
--enable-nls --without-included-gettext --disable-checking
--enable-threads=posix --with-cpp-install-dir=bin --enable-objc-gc
hppa-linux
Thread model: posix
gcc version 3.0.4

Crashes under 3.0.4, looks like the possible PIC register bug we saw
with the double printf. I recommend you move to a newer gcc if possible.
I spent a few minutes looking at assembler output and %r19 looks to low
to be valid...

c.



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> Which versions did you try? :)
> 
> bash-2.05b$ gcc-3.0 -fPIC -g test-fpic.c; ./a.out
> Segmentation fault

gcc version 3.2.3 20030316 (Debian prerelease)
gcc version 3.3 20030419 (prerelease)
gcc version 3.4 20030115 (experimental)

> Crashes under 3.0.4, looks like the possible PIC register bug we saw
> with the double printf. I recommend you move to a newer gcc if possible.
> I spent a few minutes looking at assembler output and %r19 looks to low
> to be valid...

This is a bug in 3.0.4.  If you look at the assembler output for the
testcase, you will see the following:

	.section	.ctors,"aw"
	.long	my_start

This is incorrect.  The code should be:

	.section	.ctors,"aw",@progbits
	.align	4
	.word	P%my_start

Using a plabel constructor causes $$dyncall to correctly load the
pic register for the call to my_start.  This is necessary because
the startup file crtbegin.o is not compiled as pic code and the
code in __do_global_ctors_aux clobbers the pic register.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Friday 25 April 2003 20:19, Joel Soete wrote:

> >IAOQ = 10135394
> >Func: kfree, Off: 34, Addr: 0x10135394
>
> here is the kernel function which made panic kernel. (why? we need
> expert help)
>

It seems that the crash occurs at this code piece (line 902 of sstfb.c):

        if (old_bpp != var->bits_per_pixel) {
            if ((err = fb_alloc_cmap(&display->cmap, 0, 0)))
                return err;
            sstfb_install_cmap(con, info);
        }

old_bpp is some strange value (seems random, nothing realistic) and is not 
equal to var->bits_per_pixel (16 in my case). The fb_alloc_cmap is called to 
free the old colormap and that seems to be impossible. Commenting out that 
call and setting the monitor type to 1024x768 makes it work most of the 
times. 

Any suggestions for a correct fix are appreciated.

Arjen Hommersom


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> This is a bug in 3.0.4.  If you look at the assembler output for the
> testcase, you will see the following:
> 
> 	.section	.ctors,"aw"
> 	.long	my_start
> 
> This is incorrect.  The code should be:
> 
> 	.section	.ctors,"aw",@progbits
> 	.align	4
> 	.word	P%my_start
> 
> Using a plabel constructor causes $$dyncall to correctly load the
> pic register for the call to my_start.  This is necessary because
> the startup file crtbegin.o is not compiled as pic code and the
> code in __do_global_ctors_aux clobbers the pic register.

Good catch. I hadn't bothered looking at the .S!
Again the recommendation is going to be "Use a newer gcc" :)

c.


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> Good catch. I hadn't bothered looking at the .S!
> Again the recommendation is going to be "Use a newer gcc" :)

I should have mentioned that the problem is fixed in all the gcc versions
that I originally tried.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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When installing debian on a hp-9000 712/80 the below warning shows up:

"file:/instmnt/pool/main/s/shellutils/shellutils_2.0.11-11_hppa.deb was =
corrupt" <continue>
"Couldn't download shellutils" <continue>
"The previous attempt to install the base system failed. Please select =
"Next" to retry installation of the base system."

I got the install cd by downloading the iso image using jigdo.
I have tried version 3.0r0, 3.0r1 and 3.0r1NON-US but none of them works =
- always the same error message.

Any hints ?


------=_NextPart_000_0022_01C30CE0.04166510
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	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.3315.2870" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>When installing debian on a hp-9000 =
712/80 the=20
below warning shows up:</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial=20
size=3D2>"file:/instmnt/pool/main/s/shellutils/shellutils_2.0.11-11_hppa.=
deb was=20
corrupt" &lt;continue&gt;</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>"Couldn't download shellutils"=20
&lt;continue&gt;</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>"The previous attempt to install the =
base system=20
failed. Please select "Next" to retry installation of the base=20
system."</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I got the install cd by downloading the =
iso image=20
using jigdo.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I have tried version 3.0r0, 3.0r1 and =
3.0r1NON-US=20
but none of them works - always the same error message.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Any hints ?</FONT></DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

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From: Alexander Gabert <pappy@nikita.ath.cx>
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Subject: [parisc-linux] -fPIC position independent code on parisc
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Xref: news.gmane.org gmane.linux.ports.parisc:18343

hi,

can someone explain the difference between "normal" and "-fPIC"?

i have compiled a test program:

#include <stdio.h>

int main(void) {
        printf("hello\n");
        return(0);
}

first one without -fPIC
gcc -S hello.c

     1          .LEVEL 1.1
     2          .section        .rodata
     3          .align 4
     4  .LC0:
     5  .stringz"hello\n"
     6          .text
     7          .align 4
     8  .globl main
     9                  .type            main,@function
    10  main:
    11          .PROC
    12          .CALLINFO FRAME=64,CALLS,SAVE_RP,SAVE_SP,ENTRY_GR=3
    13          .ENTRY
    14          stw %r2,-20(%r30)
    15          copy %r3,%r1
    16          copy %r30,%r3
    17          stwm %r1,64(%r30)
    18          ldil LR'.LC0,%r19
    19          ldo RR'.LC0(%r19),%r26
    20          bl printf,%r2
    21          nop
    22          ldi 0,%r28
    23          ldw -20(%r3),%r2
    24          ldo 64(%r3),%r30
    25          ldwm -64(%r30),%r3
    26          bv,n %r0(%r2)
    27          .EXIT
    28          .PROCEND
    29  .Lfe1:
    30          .size   main,.Lfe1-main
    31          .ident  "GCC: (GNU) 3.0.4"

second one with -fPIC
gcc -S -fPIC hello_fPIC.c

     1          .LEVEL 1.1
     2          .section        .rodata
     3          .align 4
     4  .LC0:
     5  .stringz"hello\n"
     6          .text
     7          .align 4
     8  .globl main
     9                  .type            main,@function
    10  main:
    11          .PROC
    12          .CALLINFO FRAME=64,CALLS,SAVE_RP,SAVE_SP,ENTRY_GR=4
    13          .ENTRY
    14          stw %r2,-20(%r30)
    15          copy %r3,%r1
    16          copy %r30,%r3
    17          stwm %r1,64(%r30)
    18          stw %r4,8(%r3)
    19          stw %r19,-32(%r30)
    20          copy %r19,%r4
    21          addil LT'.LC0,%r19
    22          ldw RT'.LC0(%r1),%r1
    23          copy %r1,%r26
    24          bl printf,%r2
    25          nop
    26          copy %r4,%r19
    27          ldi 0,%r28
    28          ldw -20(%r3),%r2
    29          ldw 8(%r3),%r4
    30          ldo 64(%r3),%r30
    31          ldwm -64(%r30),%r3
    32          bv,n %r0(%r2)
    33          .EXIT
    34          .PROCEND
    35  .Lfe1:
    36          .size   main,.Lfe1-main
    37          .ident  "GCC: (GNU) 3.0.4"

i know that it is needed for shared libraries...
but what exactly is position independent code?

gcc is version 3.0.4
glibc is version 2.2.5


thanks in advance,

Alex
--
pub  1024/05E1A80C 2001/12/16 Alexander Gabert (http://nikita.ath.cx) <pappy@nikita.ath.cx>
          Key fingerprint =  2D 84 B0 CB F5 67 8A 22  8D 37 6E 6B 8A 3B 7F D6  05 E1 A8 0C


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Subject: Re: [parisc-linux] -fPIC position independent code on parisc
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> but what exactly is position independent code?

it's exactly what it says, it will work no matter at what position
the code is loaded.

e.g.:

non-PIC
>     18          ldil LR'.LC0,%r19
>     19          ldo RR'.LC0(%r19),%r26
>     20          bl printf,%r2

This loads the address of .LC0 (your string) relative to a fixed address
into r26 (arg0). The address is resolved statically at link time, so
if the code is moved to a different starting address, the address will 
be wrong.

PIC:
>     21          addil LT'.LC0,%r19
>     22          ldw RT'.LC0(%r1),%r1
>     23          copy %r1,%r26
>     24          bl printf,%r2

This calculates the offset of .LC0 relative to the linkage table pointer
(r19) by creating a GOT entry. The linkage table pointer is assigned 
value at runtime based on where the dynamic loader loads the code into 
memory, so the load will always point to the the right place wherever 
it is loaded. 

When you have a shared library, different programs that are linked
against the library may load it at different offsets, so the code must 
be position independent for it to work.

HTH
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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(Please reply on list and not via private mail)

> i do not understand the "LR'" syntax
[etc]

Try
http://docs.hp.com/cgi-bin/onlinedocs.py?mpn=92432-90012&service=hpux&path=00/00/19&title=HP%20Assembler%20Reference%20Manual

> it has been linked already, how do i find out, where it is resolved?

After you link an application, you can disassmble the executable.

> but what with those LR' RR' LT' RT'

They are all part of the assembler operators for field selection.

> linkage table pointer?
> what is this? (i am new)

There are several documents that describe the PA runtime linked on the
parisc-linux website. You might want to check them out. The ELF
specification, together with the related architecture supplements, 
describe how relocations work.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi Joerg,
>
>
>When installing debian on a hp-9000 712/80 the below warning shows up:
>
>"file:/instmnt/pool/main/s/shellutils/shellutils_2.0.11-11_hppa.deb was
corrupt"
><continue>
>"Couldn't download shellutils" <continue>
>"The previous attempt to install the base system failed. Please select "Next"
>to retry installation of the base system."
>
>I got the install cd by downloading the iso image using jigdo.
>I have tried version 3.0r0, 3.0r1 and 3.0r1NON-US but none of them works

Umm as I install successfuly 3.0r0 (and iirc in the list somebody else reach
to intall 3.0r1), I do suspect that the pb should be somewhere in the way
you proceded to burn your cdrom.

First of all, check the md5sum checksum of the image you download (very usefull
for big files).

If it is ok tell us more about tools you used to burn this image (I use cdrtools
on *nix system)

hth,
    Joel

---------------------------------
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Economisez jusqu' 25% avec Tiscali Complete !
Offre spciale : premire anne d'abonnement offerte.
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On Mon, Apr 28, 2003 at 02:40:40PM +0200, Joel Soete wrote:
> >I got the install cd by downloading the iso image using jigdo.

...
> First of all, check the md5sum checksum of the image you download (very
> usefull for big files).

I think jigdo already did.  IIRC jigdo verifies the final ISO image.

> If it is ok tell us more about tools you used to burn this image
> (I use cdrtools on *nix system)

The ISO seems to boot - therefore I'll guess it's something else.
But don't know where to begin without having the box in front of me.
Open the box and make sure everything is clean and all cables properly
connected. Reseat RAM (after grounding yourself). Try again.

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:18349

Hi Joerg,

>>When installing debian on a hp-9000 712/80 the below warning shows up:
>>
>>"file:/instmnt/pool/main/s/shellutils/shellutils=5F2.0.11-11=5Fhppa.deb w=
as
corrupt"
>><continue>
>>"Couldn't download shellutils" <continue>

>Umm as I install successfuly 3.0r0 (and iirc in the list somebody else=20
reach
>to intall 3.0r1), I do suspect that the pb should be somewhere in the way
>you proceded to burn your cdrom.

>First of all, check the md5sum checksum of the image you download (very=20
usefull
>for big files).
If the downloaded image shows correct md5sum, I would recommend checking=20
your
burned CDROM for equal md5sum:
dd if=3D/dev/cdrom bs=3D8192|md5sum

change "/dev/cdrom" to your correct cdrom device and don't interrupt,
this may take considerable time without showing any activity, depending
on the drive speed.

Sometimes, not all cdrom raw discs are recognized well in all
drives. Changing manufacturer/type may help.

A way to prove that the cdrom drive in question reads your burned cdrom
correctly, might be to attach the drive to a (linux) pc with scsi IF and
run the same command there. Older drives tend to accumulate dust in the
optical path, wich might cause reading problems as well, and sometimes
are not well designed for modern cdrom raw material. Maybe you can
attach a more recent scsi drive to your hp-9000.
=20
hth,
      Joachim


Joachim Weller

Philips Medizin Systeme Boeblingen GmbH
Cardiac and Monitoring Systems (CMS) /New Product Engineering=20
Phone: {+49|0}-7031-463-1891
Fax:   {+49|0}-7031-463-2112
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F
Gesch=E4ftsf=FChrer: Dr. Werner Haas, David Russell, Wolfgang Strenzl=20
(Sprecher)
Sitz der Gesellschaft: B=F6blingen Registergericht B=F6blingen Reg.-Nr. HRB=
=20
5187=20
Hewlett-Packard Str. 2, D 71034 Boeblingen      -GERMANY-




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Questions on parisc-linux should be sent to the list.  This is a FAQ.

> In file included from ide-cd.c:318:
> ide-cd.h: At top level:
> ide-cd.h:440: error: long, short, signed or unsigned used invalidly for
                ^^^^^

The problem is that the types "__u8" and "short" can't be used together:

	__u8 short slot_tablelen;

I'd remove the __u8 from the above line in ide-cd.h and retry your build.

Dave


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Subject: RE: [parisc-linux] Program counter from sigcontext, constructurs 
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Thanks to all the help, my profiling code seems to be much healthier now after:

1) Switching to a machine with a 2.4.20-pa28 kernel and gcc 3.2.
2) Discarding the privilege level bits from the program counter value.
3) Adding 24 bytes to the struct sigcontext pointer (?) passed as a third argument to the signal handler. (!)

Needless to say, I'm still a bit concerned about (3).  Why does the third argument to the signal handler appear to point 24 bytes BEFORE the sigcontext structure?  Does it actually point at a bigger structure?  Is the third argument to a signal handler really not a pointer to sigcontext?  Did struct sigcontext change recently, so that I'm dealing with a version mismatch?

With the 24 bytes added, I clearly get the right program counter values.  I also seem to get the right general register values.

Thanks for any insight.

Hans

> -----Original Message-----
> From: Boehm, Hans 
> Sent: Friday, April 25, 2003 12:40 PM
> To: 'Carlos O'Donell'
> Cc: 'parisc-linux@lists.parisc-linux.org'; Boehm, Hans
> Subject: RE: [parisc-linux] Program counter from sigcontext,
> constructurs and -fPIC
> 
> 
> > -----Original Message-----
> > From: Carlos O'Donell [mailto:carlos@baldric.uwo.ca]
> > 
> > Hans,
> > 
> > What code are you porting? :)
> It's a new, currently rather simple, but thread-compatible, 
> purely user-level, profiler.  It includes some infrastructure 
> for using hardware atomic operations in reasonably portable 
> ways.  Need less to say, PA-RISC makes a wonderful test case.
> > 
> > > 1) I need to retrieve the pc value from the sigcontext 
> > structure passed to a timer signal handler.  In an earlier 
> > message, Paul Bame pointed me at sc_iaoq.  After a bit more 
> > reading, my conclusion was that sc_iaoq[0] should be a 
> > reasonable value to use as a sampled pc.  However I have been 
> > unable to see anything reasonable in that slot (or sc_iaoq[1] 
> > for that matter).  Presumably a struct sigcontext pointer is 
> > always passed as the third parameter to a signal handler?  
> > And it's filled in for timer interrrupts?  What does profil() 
> > do?  (I tried to read the code, but it's hard to trace 
> > through all the configuration stuff.)
> > 
> > A. What kernel are you using?
> 2.4.17-64 on spe170.testdrive.hp.com.
> >  
> > The reason I ask is that 64-bit kernels return broken sigcontext
> > pointers (for now it stuffs 64-bit values into a 32-bit 
> values within
> > the sigcontext, rather it should take into account the fact that
> > userspace or the calling threads personality is 32-bit and 
> > truncate the
> > register values).
> It sounds like that's the problem here.  Thanks.  
> > 
> > What is there to understand about profil()? Based on your PC it uses
> > modular arithmetic (the shift, scale, and division) to track 
> > on a coarse
> > scale which parts of your code are being executed.
> Once you get the PC in the signal handler, that's easy.  It 
> sounds like getting the PC from a signal handler from a 
> 32-bit executable on a 64-bit kernel is currently impossible? 
>  I should probably focus on 64-bit executables?  Or does 
> profil() have a way to get around the problem?
> > 
...


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> 1) Switching to a machine with a 2.4.20-pa28 kernel and gcc 3.2.
> 2) Discarding the privilege level bits from the program counter value.

Why?

> 3) Adding 24 bytes to the struct sigcontext pointer (?) passed as a third argument to the signal handler. (!)

Are you still using a 64-bit kernel?

> Needless to say, I'm still a bit concerned about (3).  Why does the third argument to the signal handler appear to point 24 bytes BEFORE the sigcontext structure?  Does it actually point at a bigger structure?  Is the third argument to a signal handler really not a pointer to sigcontext?  Did struct sigcontext change recently, so that I'm dealing with a version mismatch?

What glibc version is installed? I made recent changes to mache the
userspace and kernel versions of sigcontext (now a machine context).
 
> With the 24 bytes added, I clearly get the right program counter values.  I also seem to get the right general register values.

How are you accessing this value? Can you generate a simple testcase
please?

c.


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On Tue, Apr 29, 2003 at 05:30:28PM -0400, Carlos O'Donell wrote:
> > 3) Adding 24 bytes to the struct sigcontext pointer (?) passed as a third argument to the signal handler. (!)
> 
> Are you still using a 64-bit kernel?

no - he's using:
grundler@debian:~$ uname -a
Linux debian 2.4.20-pa28 #39 Wed Mar 12 19:24:25 PST 2003 parisc unknown
unknown GNU/Linux

It's possible the kernel-headers he's using aren't clean.
Just in case, can you tell me which ones he should be using?

> What glibc version is installed? I made recent changes to mache the
> userspace and kernel versions of sigcontext (now a machine context).

grundler@debian:~$ dpkg -l libc6\*
Desired=Unknown/Install/Remove/Purge/Hold
|
Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err:
uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  libc6          2.3.1-16       GNU C Library: Shared libraries and Timezone
un  libc6-bin      <none>         (no description available)
pn  libc6-dbg      <none>         (no description available)
ii  libc6-dev      2.3.1-16       GNU C Library: Development Libraries and Hea
...

grundler@debian:~$ ls -l /var/opt/LinuxCOE/Debian/pool/main/g/glibc/libc6-dev_2.3.1-*_hppa.deb
-rw-rw-r--    1 root     1176      2958496 Mar 22 12:02 /var/opt/LinuxCOE/Debian/pool/main/g/glibc/libc6-dev_2.3.1-16_hppa.deb
-rw-rw-r--    1 root     1176      2959794 Apr 21 06:47 /var/opt/LinuxCOE/Debian/pool/main/g/glibc/libc6-dev_2.3.1-17_hppa.deb


I'm ok with updating to -17 if you promise it won't do evil things
to my box. ;^)

thanks,
grant


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g,

> no - he's using:
> grundler@debian:~$ uname -a
> Linux debian 2.4.20-pa28 #39 Wed Mar 12 19:24:25 PST 2003 parisc unknown
> unknown GNU/Linux

Perfect.
 
> It's possible the kernel-headers he's using aren't clean.
> Just in case, can you tell me which ones he should be using?

/usr/inlcude/asm/sigcontext.h should define it to be:

/* We will add more stuff here as it becomes necessary, until we know
   it works. */
struct sigcontext {
        unsigned long sc_flags;
        unsigned long sc_gr[32]; /* PSW in sc_gr[0] */
        unsigned long long sc_fr[32]; /* FIXME, do we need other state info? */
        unsigned long sc_iasq[2];
        unsigned long sc_iaoq[2];
        unsigned long sc_sar; /* cr11 */
};

Which is used to define an identical mcontext.

> ii  libc6          2.3.1-16       GNU C Library: Shared libraries and Timezone
> ii  libc6-dev      2.3.1-16       GNU C Library: Development Libraries and Hea

Perfect.

> I'm ok with updating to -17 if you promise it won't do evil things
> to my box. ;^)

Don't touch -17, the _Unwind_Find_FDE code broke and it's doing damage
to things like 'vi' ... *sigh* I haven't even looked into this (looks
like gcc/glibc clashes again).

c.


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The struct sigcontext seems to match the declarations I'm seeing and what dbx is seeing.

I think you should be able to reproduce the problem fairly simply by:

1) Downloading http://www.hpl.hp.com/personal/Hans_Boehm/qprof/qprof-0.2.tar.gz
2) Unpacking
3) "make qprof_test" with a recent gcc; this should only take a few seconds.  This doesn't use much of the source code, or uses it in only trivial ways.
4) gdb ./qprof_test
5) break PROF_pc_sample_list_handler; run
6) Look at the handler arguments, particularly the third one.

The corresponding sigaction call is also in prof_utils.c, the same file that contains the above function.  All of the relevant code is either in prof_utils.c and prof_main.c.

(If everything worked, this would report PC samples that are off by 3, since it doesn't contain the privilege level fix.)

Hans

> -----Original Message-----
> From: Carlos O'Donell [mailto:carlos@baldric.uwo.ca]
> Sent: Tuesday, April 29, 2003 5:31 PM
> To: Grant Grundler
> Cc: Boehm, Hans; 'parisc-linux@lists.parisc-linux.org'
> Subject: Re: [parisc-linux] Program counter from sigcontext,
> constructurs and -fPIC
> 
> 
> 
> g,
> 
> > no - he's using:
> > grundler@debian:~$ uname -a
> > Linux debian 2.4.20-pa28 #39 Wed Mar 12 19:24:25 PST 2003 
> parisc unknown
> > unknown GNU/Linux
> 
> Perfect.
>  
> > It's possible the kernel-headers he's using aren't clean.
> > Just in case, can you tell me which ones he should be using?
> 
> /usr/inlcude/asm/sigcontext.h should define it to be:
> 
> /* We will add more stuff here as it becomes necessary, until we know
>    it works. */
> struct sigcontext {
>         unsigned long sc_flags;
>         unsigned long sc_gr[32]; /* PSW in sc_gr[0] */
>         unsigned long long sc_fr[32]; /* FIXME, do we need 
> other state info? */
>         unsigned long sc_iasq[2];
>         unsigned long sc_iaoq[2];
>         unsigned long sc_sar; /* cr11 */
> };
> 
> Which is used to define an identical mcontext.
> 
> > ii  libc6          2.3.1-16       GNU C Library: Shared 
> libraries and Timezone
> > ii  libc6-dev      2.3.1-16       GNU C Library: 
> Development Libraries and Hea
> 
> Perfect.
> 
> > I'm ok with updating to -17 if you promise it won't do evil things
> > to my box. ;^)
> 
> Don't touch -17, the _Unwind_Find_FDE code broke and it's doing damage
> to things like 'vi' ... *sigh* I haven't even looked into this (looks
> like gcc/glibc clashes again).
> 
> c.
> 


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On Tue, Apr 29, 2003 at 08:31:06PM -0400, Carlos O'Donell wrote:
...
> /* We will add more stuff here as it becomes necessary, until we know
>    it works. */
> struct sigcontext {
>         unsigned long sc_flags;
>         unsigned long sc_gr[32]; /* PSW in sc_gr[0] */
...

yes. exactly matches.

...
> Don't touch -17, the _Unwind_Find_FDE code broke and it's doing damage
> to things like 'vi' ... *sigh* I haven't even looked into this (looks
> like gcc/glibc clashes again).

ok. thanks for the warning.

Looks things are as good as they are going to get on that box for
the time being then.

thanks,
grant


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>-- Original Message --
>Date: Tue, 29 Apr 2003 11:40:02 +0200
>From: "Joel Soete" <jsoe0708@tiscali.be>
>Subject: patch 2.4.21 (follow up)
>To: "Alan Cox" <alan@lxorguk.ukuu.org.uk>
>Cc: parisc-linux@lists.parisc-linux.org
>
>
>Alan,
>
>Refering to your last Changelog 2.4.21-rc1-ac3:
><http://linuxtoday.com/developer/2003042801626NWKNDV>
>
>I would like to thanks you again for your help and all those who help me
>to build this stuff.
>
>hth,
>    Joel
>
>
>---------------------------------
>Vous surfez avec une ligne classique ?
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>


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Umm some mail pb?

>-- Original Message --
>Date: Tue, 29 Apr 2003 08:27:15 +0200
>From: "Joel Soete" <jsoe0708@tiscali.be>
>Subject: Re: [parisc-linux] cannot install (shellutils)
>To: "Grant Grundler" <grundler@parisc-linux.org>
>Cc: "J?rg Benndorf" <joerg.benndorf@t-online.de>,
> parisc-linux@lists.parisc-linux.org
>
>
>
>>
>>On Mon, Apr 28, 2003 at 02:40:40PM +0200, Joel Soete wrote:
>>> >I got the install cd by downloading the iso image using jigdo.
>>
>>...
>>> First of all, check the md5sum checksum of the image you download (very
>>> usefull for big files).
>>
>>I think jigdo already did.  IIRC jigdo verifies the final ISO image.
>
>I just know jigdo by name but do not have infrastructure to test (not enough
>disk space, fw allowing just a minimum of protocol)
>
>Hmm you also rightly point out that only speek about to check the image
and
>forgot to mentioned to check also the burned cd (just a priceless care :)
>)
>
>>
>>> If it is ok tell us more about tools you used to burn this image
>>> (I use cdrtools on *nix system)
>>
>>The ISO seems to boot - therefore I'll guess it's something else.
>
>Also but as we encounter many times this kind of pb because of cd wrongly
>burned I would just check step by step :)
> 
Joachim used dd but it could also used a tools coming with cdrtools:
readcd dev=1,4,0 f=- | md5sum

(for dev replaced your own cd hw/path)

>Joel
>


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Hi Joachim,


>If the downloaded image shows correct md5sum, I would recommend checking
>
>your
>burned CDROM for equal md5sum:
>dd if=/dev/cdrom bs=8192|md5sum
>
Absolutly right, for my own I used :
readcd dev=1,4,0 f=- | md5sum

(replacing dev= by the relevant hw/path of your own cdrom)

Joel


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Hi,

>
>> ii  libc6          2.3.1-16       GNU C Library: Shared libraries and
Timezone
>> ii  libc6-dev      2.3.1-16       GNU C Library: Development Libraries
>and Hea
>
>Perfect.
>
>> I'm ok with updating to -17 if you promise it won't do evil things
>> to my box. ;^)
>
>Don't touch -17, the _Unwind_Find_FDE code broke and it's doing damage
>to things like 'vi' ... *sigh* I haven't even looked into this (looks
>like gcc/glibc clashes again).
>
Umm could this be why that my b2k crashed when compiling a kernel to test
a patch?

I just come back to libc6 2.3.1-16: the pb didn't occurs anymore. 
(I was a bit confused because just did it on a test 2.4.21-rc1 :) )

Thanks,
    Joel


---------------------------------
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On Mer, 2003-04-30 at 07:12, Joel Soete wrote:
> >I would like to thanks you again for your help and all those who help me
> >to build this stuff.

I typed wget, more and patch. The work was all done by people making it
easy to merge



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Hi,

I tried to figure out why some keys on my Presicionbook are messed up
when using the console (it works on X). As it turns out, 'showkey -k'
shows the 'keycode 86' for the following keys:

ESC, F2 .. F12, Ins, Del, AltL, AltR, MetaL, MetaR, | and \ (same key),
Scroll lock, PgDn, PgUp, Home, PrSc, Pause, End and the four arrow keys.

Since they all share the keycode 86, and obviously this keycode is
assigned to '\', all the above mentioned keys produce '\' as an output.

showkey -s produces the following output for all the above mentioned keys:
pressing key: 0x7f release: 0xff


Any clue what might be wrong?

Thanks, Max


PS: I still have the problem that X currently just works when I use the
external monitor; using the internal LCD it boots fine, but doesn't show
anything ...



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Re:

> I tried to figure out why some keys on my Presicionbook are messed up
> when using the console (it works on X). As it turns out, 'showkey -k'
> shows the 'keycode 86' for the following keys:
... 
> PS: I still have the problem that X currently just works when I use the
> external monitor; using the internal LCD it boots fine, but doesn't show
> anything ...

I can suggest a $400 solution:
   http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2726642700&category=177 
...another PrecisionBook.

I've found no keyboard problems like you describe on mine,
and X works just fine with the internal LCD screen (haven't tried an
external monitor).

On your keyboard problem...plug in an external keyboard and see if the
problem exists with it, too.  Either way, that should localize the problem
somewhat.

-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com


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On Wed, 30 Apr 2003, Stan Sieler wrote:

> Re:
>
> > I tried to figure out why some keys on my Presicionbook are messed up
> > when using the console (it works on X). As it turns out, 'showkey -k'
> > shows the 'keycode 86' for the following keys:
> ...
> > PS: I still have the problem that X currently just works when I use the
> > external monitor; using the internal LCD it boots fine, but doesn't show
> > anything ...
>
> I can suggest a $400 solution:
>    http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2726642700&category=177
> ...another PrecisionBook.
>
> I've found no keyboard problems like you describe on mine,
> and X works just fine with the internal LCD screen (haven't tried an
> external monitor).

Well, the internal LCD works, until it switches to stifb.
The keyboard works under X perfectly aswell. It's just the console ...

> On your keyboard problem...plug in an external keyboard and see if the
> problem exists with it, too.  Either way, that should localize the problem
> somewhat.

Yes, an external keyboard works fine ...


May I ask what your kernel & .config is and what firmware you have on
the Precisionbook?

Thanks, Max



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> >Don't touch -17, the _Unwind_Find_FDE code broke and it's doing damage
> >to things like 'vi' ... *sigh* I haven't even looked into this (looks
> >like gcc/glibc clashes again).
> >
> Umm could this be why that my b2k crashed when compiling a kernel to test
> a patch?

Quite possibly. If you can get a backtrace of the crash you'll se it die
inside _Unwind_Find_FDE in glibc.
 
I'm working on fixing this.

c.



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On Tue, Apr 29, 2003 at 02:17:32PM -0700, Boehm, Hans wrote:
> 3) Adding 24 bytes to the struct sigcontext pointer (?) passed
>    as a third argument to the signal handler. (!)
...
> Is the third argument to a signal handler really not a pointer to sigcontext?

Yes - that seems to be the case.
Randolph found most of the answer in "Single Unix Specification"
(IEEE 1033.1-2001).  Third argument is "ucontext_t".

We counted 20 bytes (not 24) before the "struct sigcontext uc_mcontext;"
and thus still don't have a full explanation. Our best guess is some
misc padding is involved.

hth,
grant


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This is a multi-part message in MIME format.

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Hello,

I've installed the Debian PA-Risc in a C360 HP Desktop.
I have problem with my video card, at the end when i type startx, come =
the message"fatal error, no screens found".
Can You please help me how can i let it work?

I'm new in this operating system, please write me down what step's and =
how i must do.

Thank You a lot for helping.

Giovanni

p.s i've search for helping, i found something but i'don't understand =
how to edit (what comands) the XF86Config file.
------=_NextPart_000_0005_01C31096.F754E260
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	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2800.1106" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hello,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I've installed the Debian PA-Risc in a =
C360 HP=20
Desktop.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I have problem with my video card, at =
the end when=20
i type startx, come the message"fatal error, no screens =
found".</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Can You please help me how can i let it =

work?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I'm new in this operating system, =
please write me=20
down what step's and how i must do.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thank You a lot for =
helping.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Giovanni</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>p.s i've search for helping, i found =
something but=20
i'don't understand how to edit (what comands) the XF86Config=20
file.</FONT></DIV></BODY></HTML>

------=_NextPart_000_0005_01C31096.F754E260--



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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
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Subject: Betr.: [parisc-linux] Video card
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Xref: news.gmane.org gmane.linux.ports.parisc:18368

>Hello,
>
>I've installed the Debian PA-Risc in a C360 HP Desktop.
>I have problem with my video card, at the end when i type startx, come =
the message"fatal error, no screens found".
>Can You please help me how can i let it work?
>
>I'm new in this operating system, please write me down what step's and =
how i must do.
>
It's in the archives for this mailinglist. Also, with this kind of error, =
the exact model
of the videocard is important, and you don't mention it.

>Thank You a lot for helping.
>
>Giovanni
>
>p.s i've search for helping, i found something but i'don't understand how =
to edit (what comands) the XF86Config file.

If you don't know how to edit a file, may I politely suggest not starting
with linux on the PA-RISC architecture? It's one of the faster-moving
linux-versions, where not everything is expected to work, and some
work (ie searching the archives) is to be expected.

Perhaps a nice Knoppix-cd on a regular x86 PC would be better
to start with? Your experience with Linux will certainly be more to
your liking then.

Kind regards,
Jurriaan



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From: Chris Jantzen <chris-parisc@maybe.net>
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Slightly off-topic: I came across a perfect match for the 4GB HVD
Seagate already in my C180, but don't have any rails. Wondered if
anybody here knew a good place, or had some lying around.

-- 
chris jantzen kb7rnl =->         __O
Insert witty comment here.     _`\<,_
http://www.maybe.net/         (*)/ (*)


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Chris Jantzen writes:
- Slightly off-topic: I came across a perfect match for the 4GB HVD
- Seagate already in my C180, but don't have any rails. Wondered if
- anybody here knew a good place, or had some lying around.

	They are still available from HP, if you can find a
co-operative SE or FE to order them for you.. (They were listed
in partsdirect.hp.com at one point, but when I ordered them,
they went on backorder, and I had to call to find out why.. :-()

--
Eric Schnoebelen		eric@cirr.com		http://www.cirr.com
		Life is hard but the root password helps.
		    - seen on the misc@ OpenBSD mailing list


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: Re: [parisc-linux] (OT-ish): c180 drive rails?
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They are out on Ebay all the time, but none up right now that I can find. derek

Eric Schnoebelen <eric@cirr.com> wrote:
Chris Jantzen writes:
- Slightly off-topic: I came across a perfect match for the 4GB HVD
- Seagate already in my C180, but don't have any rails. Wondered if
- anybody here knew a good place, or had some lying around.

They are still available from HP, if you can find a
co-operative SE or FE to order them for you.. (They were listed
in partsdirect.hp.com at one point, but when I ordered them,
they went on backorder, and I had to call to find out why.. :-()

--
Eric Schnoebelen eric@cirr.com http://www.cirr.com
Life is hard but the root password helps.
- seen on the misc@ OpenBSD mailing list
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

---------------------------------
Do you Yahoo!?
The New Yahoo! Search - Faster. Easier. Bingo.
--0-540082675-1051933473=:96153
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<DIV>They are out on Ebay all the time, but none up right now that I can find.</DIV>
<DIV>&nbsp;</DIV>
<DIV>derek<BR><BR><B><I>Eric Schnoebelen &lt;eric@cirr.com&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"><BR>Chris Jantzen writes:<BR>- Slightly off-topic: I came across a perfect match for the 4GB HVD<BR>- Seagate already in my C180, but don't have any rails. Wondered if<BR>- anybody here knew a good place, or had some lying around.<BR><BR>They are still available from HP, if you can find a<BR>co-operative SE or FE to order them for you.. (They were listed<BR>in partsdirect.hp.com at one point, but when I ordered them,<BR>they went on backorder, and I had to call to find out why.. :-()<BR><BR>--<BR>Eric Schnoebelen eric@cirr.com http://www.cirr.com<BR>Life is hard but the root password helps.<BR>- seen on the misc@ OpenBSD mailing list<BR>_______________________________________________<BR>parisc-linux mai
 ling list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><hr SIZE=1>
Do you Yahoo!?<br>
<a href="http://us.rd.yahoo.com/search/mailsig/*http://search.yahoo.com">The New Yahoo! Search</a> - Faster. Easier. Bingo.
--0-540082675-1051933473=:96153--


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Carlos O'Donell wrote:

>>>Don't touch -17, the _Unwind_Find_FDE code broke and it's doing damage
>>>to things like 'vi' ... *sigh* I haven't even looked into this (looks
>>>like gcc/glibc clashes again).
>>>
>>>      
>>>
>>Umm could this be why that my b2k crashed when compiling a kernel to test
>>a patch?
>>    
>>
>
>Quite possibly. If you can get a backtrace of the crash you'll se it die
>inside _Unwind_Find_FDE in glibc.
>
I couldn't anymore check because unfortunately even after comming back 
to libc6 sub debian release -16 my b2k crashes severall times. The last 
time was badly in the middle of a apt-get dist-upgrade; this crash 
corrupt the root fs so that it isn't any more usable. I will try to 
recover it asap to check.

That said, I suspect more another hw pb (it is not the first time with 
this b2k model on which hp had already have to replace the cpu) or a bug 
into cd-ide driver (this is the only model I had the chance to test with 
this kind of feature).

> 
>I'm working on fixing this.
>
>  
>
Thanks for your attention,
    Joel





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I found one of these kits on eBay - C200 to C240 upgrade, CPU on
mainboard. Do any of the HP techs around here know if it'll also fit a
C180? It'd be nice to drop a large performance upgrade into it for not
much cash...

Also, after the thread on fiber-card drivers, I realized my C180 has a
fiber card in it. It's completely unused - if someone could use it in an
attempt to further driver support I'd happily donate it... As soon as I
get a chance to shut it down and tear it open I'll pull the part # off
of it...



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Subject: Re: [parisc-linux] {kinda OT] A4947A applicability? and FC driver work
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On Sat, May 03, 2003 at 07:54:57PM -0800, Tom wrote:
> I found one of these kits on eBay - C200 to C240 upgrade, CPU on
> mainboard. Do any of the HP techs around here know if it'll also fit a
> C180? It'd be nice to drop a large performance upgrade into it for not
> much cash...

Well... it'll _fit_.  Whether firmware will work properly is anyone's
guess.  There's various differences between the C180 and C200 that
make this combination not sure to succeed.  My personal opinion (and
not speaking on behalf of my emplyer) is that it's going to work 90%.
Maybe the onboard scsi controller won't be initialised properly.
Maybe the missing bit of init won't make any difference to Linux or
maybe it'll start corrupting data.  It's a bit of a gamble.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Am Sonntag, 4. Mai 2003 06:17 schrieb Matthew Wilcox:
> On Sat, May 03, 2003 at 07:54:57PM -0800, Tom wrote:
> > I found one of these kits on eBay - C200 to C240 upgrade, CPU on
> > mainboard. Do any of the HP techs around here know if it'll also fit a
> > C180? It'd be nice to drop a large performance upgrade into it for not
> > much cash...
>
> Well... it'll _fit_.  Whether firmware will work properly is anyone's
> guess. There's various differences between the C180 and C200 that
> make this combination not sure to succeed.  My personal opinion (and
> not speaking on behalf of my emplyer) is that it's going to work 90%.

I don=B4t think you will be very happy with it. One of the bigger problems =
will=20
be your power supply. The C240 has a much stronger power supply (at least t=
he=20
one that I have) than the C180.=20

> Maybe the onboard scsi controller won't be initialised properly.
> Maybe the missing bit of init won't make any difference to Linux or
> maybe it'll start corrupting data.  It's a bit of a gamble.



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Subject: Re: [parisc-linux] {kinda OT] A4947A applicability? and FC driver work
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You are also going to have a problem with the serial number, product number, and software ID on the board.  They have to be set in the EEPROM of the new board and only an HP engineer can program those item in the new board.  The program we use to set those items is not licensed to anyone, including channel partners that fix some of our workstations.  Without these items set the machine may complete selftest, but will not boot.  More than likely it will complain at the BCH about not having a valid serial number or SWID.  They are right about the power supply too, the C240 has a bigger power supply.  The I/O backplane on the C240 is WSE and not HVD like the C180.  I really think you would have problems trying to do this upgrade yourself.  The memory would transfer over even though the C200-C
 360 use a 50ns memory and the C110-C180 use 60ns memery. derek

Berthold Gunreben <b.gunreben@web.de> wrote:Am Sonntag, 4. Mai 2003 06:17 schrieb Matthew Wilcox:
> On Sat, May 03, 2003 at 07:54:57PM -0800, Tom wrote:
> > I found one of these kits on eBay - C200 to C240 upgrade, CPU on
> > mainboard. Do any of the HP techs around here know if it'll also fit a
> > C180? It'd be nice to drop a large performance upgrade into it for not
> > much cash...
>
> Well... it'll _fit_. Whether firmware will work properly is anyone's
> guess. There's various differences between the C180 and C200 that
> make this combination not sure to succeed. My personal opinion (and
> not speaking on behalf of my emplyer) is that it's going to work 90%.

I dont think you will be very happy with it. One of the bigger problems will 
be your power supply. The C240 has a much stronger power supply (at least the 
one that I have) than the C180. 

> Maybe the onboard scsi controller won't be initialised properly.
> Maybe the missing bit of init won't make any difference to Linux or
> maybe it'll start corrupting data. It's a bit of a gamble.

_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

---------------------------------
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The New Yahoo! Search - Faster. Easier. Bingo.
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<DIV>You are also going to have a problem with the serial number, product number, and software ID on the board.&nbsp; They have to be set in the EEPROM of the new board and only an HP engineer can program those item in the new board.&nbsp; The program we use to set those items is not licensed to anyone, including channel partners that fix some of our workstations.&nbsp; Without these items set the machine may complete selftest, but will not boot.&nbsp; More than likely it will complain at the BCH about not having a valid serial number or SWID.&nbsp; They are right about the power supply too, the C240 has a bigger power supply.&nbsp; The I/O backplane on the C240 is WSE and not HVD like the C180.&nbsp; I really think you would have problems trying to do this upgrade yourself.&nbsp; The memo
 ry would transfer over even though the C200-C360 use a 50ns memory and the C110-C180 use 60ns memery.</DIV>
<DIV>&nbsp;</DIV>
<DIV>derek<BR><BR><B><I>Berthold Gunreben &lt;b.gunreben@web.de&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Am Sonntag, 4. Mai 2003 06:17 schrieb Matthew Wilcox:<BR>&gt; On Sat, May 03, 2003 at 07:54:57PM -0800, Tom wrote:<BR>&gt; &gt; I found one of these kits on eBay - C200 to C240 upgrade, CPU on<BR>&gt; &gt; mainboard. Do any of the HP techs around here know if it'll also fit a<BR>&gt; &gt; C180? It'd be nice to drop a large performance upgrade into it for not<BR>&gt; &gt; much cash...<BR>&gt;<BR>&gt; Well... it'll _fit_. Whether firmware will work properly is anyone's<BR>&gt; guess. There's various differences between the C180 and C200 that<BR>&gt; make this combination not sure to succeed. My personal opinion (and<BR>&gt; not speaking on behalf of my emplyer) is that it's going to work 90%.<BR><BR>I don
 t think you will be very happy with it. One of the bigger problems will <BR>be your power supply. The C240 has a much stronger power supply (at least the <BR>one that I have) than the C180. <BR><BR>&gt; Maybe the onboard scsi controller won't be initialised properly.<BR>&gt; Maybe the missing bit of init won't make any difference to Linux or<BR>&gt; maybe it'll start corrupting data. It's a bit of a gamble.<BR><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><hr SIZE=1>
Do you Yahoo!?<br>
<a href="http://us.rd.yahoo.com/search/mailsig/*http://search.yahoo.com">The New Yahoo! Search</a> - Faster. Easier. Bingo.
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Berthold Gunreben wrote:

>Am Sonntag, 4. Mai 2003 06:17 schrieb Matthew Wilcox:
> =20
>
>>On Sat, May 03, 2003 at 07:54:57PM -0800, Tom wrote:
>>   =20
>>
>>>I found one of these kits on eBay - C200 to C240 upgrade, CPU on
>>>mainboard. Do any of the HP techs around here know if it'll also fit a=

>>>C180? It'd be nice to drop a large performance upgrade into it for not=

>>>much cash...
>>>
If you can navigate your was through docs.hp.com, you can find these=20
manuals (PDF):

    installing the hp Visualize workstation c100, c110, c160, c180 to=20
c200 CPU upgrade (a4200-900xx)
    installing the hp Visualize workstation c200 to c240 CPU upgrade=20
(a4200-90035)

at this excessively long URL:

  http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?
  contentType=3DSupportManual&locale=3Den_US&prodTypeId=3D12454&
  prodSeriesId=3D76204&taskId=3D130&prodSeriesId=3D76204&docIndexId=3D120=
917

>>Well... it'll _fit_.  Whether firmware will work properly is anyone's
>>guess. There's various differences between the C180 and C200 that
>>make this combination not sure to succeed.  My personal opinion (and
>>not speaking on behalf of my emplyer) is that it's going to work 90%.
>>   =20
>>
>
>I don=B4t think you will be very happy with it. One of the bigger proble=
ms will=20
>be your power supply. The C240 has a much stronger power supply (at leas=
t the=20
>one that I have) than the C180.=20
>
IIRC, the main reason for the larger power supply in the C200 (& up) was =

to support the Visualize FX-6 graphics interface (which has 3=20
PA-8000-based geometry engines & is not supported under Linux). I=20
believe the board will fit and as long as the power connections are the=20
same, it will probably work. But, there may still be hooks in the=20
firmware to detect the larger power supply. I might know someone who can =

answer this, but it would probably take a few days.

BTW, the service manual for the C-xxx models are available on that same U=
RL.



--------------040800080004010803000507
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Content-Transfer-Encoding: 7bit

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html;charset=ISO-8859-1">
  <title></title>
</head>
<body>
Berthold Gunreben wrote:<br>
<blockquote type="cite" cite="mid200305041008.49439.b.gunreben@web.de">
  <pre wrap="">Am Sonntag, 4. Mai 2003 06:17 schrieb Matthew Wilcox:
  </pre>
  <blockquote type="cite">
    <pre wrap="">On Sat, May 03, 2003 at 07:54:57PM -0800, Tom wrote:
    </pre>
    <blockquote type="cite">
      <pre wrap="">I found one of these kits on eBay - C200 to C240 upgrade, CPU on
mainboard. Do any of the HP techs around here know if it'll also fit a
C180? It'd be nice to drop a large performance upgrade into it for not
much cash...</pre>
    </blockquote>
  </blockquote>
</blockquote>
If you can navigate your was through docs.hp.com, you can find these
manuals (PDF):<br>
<br>
&nbsp;&nbsp;&nbsp; installing the hp Visualize workstation c100, c110, c160, c180 to
c200 CPU upgrade (a4200-900xx)<br>
&nbsp;&nbsp;&nbsp; installing the hp Visualize workstation c200 to c240 CPU upgrade
(a4200-90035)<br>
<br>
at this excessively long URL:<br>
<br>
&nbsp; <a class="moz-txt-link-freetext" href="http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp">http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp</a>?<br>
&nbsp; contentType=SupportManual&amp;locale=en_US&amp;prodTypeId=12454&amp;<br>
&nbsp;
prodSeriesId=76204&amp;taskId=130&amp;prodSeriesId=76204&amp;docIndexId=120917<br>
<br>
<blockquote type="cite" cite="mid200305041008.49439.b.gunreben@web.de">
  <blockquote type="cite">
    <pre wrap="">Well... it'll _fit_.  Whether firmware will work properly is anyone's
guess. There's various differences between the C180 and C200 that
make this combination not sure to succeed.  My personal opinion (and
not speaking on behalf of my emplyer) is that it's going to work 90%.
    </pre>
  </blockquote>
  <pre wrap=""><!---->
I don&acute;t think you will be very happy with it. One of the bigger problems will 
be your power supply. The C240 has a much stronger power supply (at least the 
one that I have) than the C180. </pre>
</blockquote>
IIRC, the main reason for the larger power supply in the C200 (&amp;
up) was to support the Visualize FX-6 graphics interface (which has 3
PA-8000-based geometry engines &amp; is not supported under Linux). I
believe the board will fit and as long as the power connections are the
same, it will probably work. But, there may still be hooks in the
firmware to detect the larger power supply. I might know someone who
can answer this, but it would probably take a few days.<br>
<br>
BTW, the service manual for the C-xxx models are available on that same
URL.<br>
<br>
<br>
</body>
</html>

--------------040800080004010803000507--



From - Thu Nov 08 21:27:41 2018
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From: sam <sam@dsl2.external.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Sell NI-MH battery
Date: Mon, 05 May 2003 11:21:56 +0800
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Dear All 

We can provide all kinds of NI-MH battery for you .Shenzhen High Power =
Technology CO., Ltd specializes in designing, manufacturing and marketing =
environment-friendly rechargeable battery-----Nickel Metal Hydride (Ni-MH) =
battery which is widely used in mobile phone, digital camera,cordless phone, =
R/C toys, emergency light, MP3 players, PDAs,power tools etc.

Type	Model	Size	capacity (mAh)
A	HFR-28A1000	2/3A	1000
	HFR-43A1700	4/5A	1700
	HFR-43A1800	4/5A	1800
	HFR-50A2000	A	2000
	HFR-50A2200	A	2200
	HFR-67A2800	7/5A	2800
	HFR-67A3300	7/5A	3300
AA	HFR-28AA650	2/3AA	650
	HFR-28AA750	2/3AA	750
	HFR-43AA1100	4/5AA	1100
	HFR-43AA1200	4/5AA	1200
	HFR-49AA1300	AA	1300
	HFR-49AA1500	AA	1500
	HFR-50AAJ1600	AA	1600
	HFR-50AAJ1800	AA	1800
	HFR-50AAJ2000	AA	2000
AAA	HFR-11AAA80	1/4AAA	80
	HFR-15AAA120	1/3AAA	120
	HFR-20AAA200	1/2AAA	200
	HFR-28AAA300	2/3AAA	300
	HFR-35AAA400	4/5AAA	400
	HFR-43AAA600	AAA	600
	HFR-44AAAJ650	AAA	650
	HFR-44AAA650	AAA	650
	HFR-50AAA700	L-AAA	700
	HFR-50AAA750	L-AAA	750
	HFR-67AAA900	LL-AAA	900
	HFR-67AAA950	LL-AAA	950
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Prismatic Cell Series			
HF	HFR-29F4-400	29F4-400	400
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we accept OEM/ODM .Thanks & very much .

This is a automatic mail system if It interrupt I am sorry . and please =
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Best regards

Sam 
Website : http://www.haopengbattery.com
E-mail  : samwei@vip.sina.com

Shenzhen High Power Technology CO., Ltd 
ADD=A3=BABldg A2,Luoshan Industrial =
Zone,Shanxia,Pinghu,Longgang,Shenzhen,Guangdong,China.
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----------------------------------------------------
    DEMO=B0=E6=B1=BE=B7=A2=CB=CD    
----------------------------------------------------




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From: "Joel Soete" <jsoe0708@tiscali.be>
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Hi Carlos,

>
>That said, I suspect more another hw pb (it is not the first time with 
>this b2k model on which hp had already have to replace the cpu) or a bug
>
Definitely it must be a HW pb: I read back the very last pim info that I
grab with minicom I find:
...
Memory/IO Controller Error Analysis Information:

                 Occurs
...
        Runway Addr = 0xc13ff0 f0f000cd0a
...

Even thought this messages seems to be OS independant (PDC only IMHO?), I
will so come back to hpux with the hope that pb re-occurs and that I can
open a HW call neer HP.

Regards,
    Joel

---------------------------------
Vous surfez avec une ligne classique ?
Economisez jusqu' 25% avec Tiscali Complete !
Offre spciale : premire anne d'abonnement offerte.
... Plus d'info sur http://complete.tiscali.be





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	Hi
For people who are intersting to it, the dump modules
is now checking that it is a swap device before
configuring it. So it remove the risk to dump
to a file system. It check for the swap magic
"SWAP-SPACE" (v0) or "SWAPSPACE2" (v1). The
partition is not necessary an active one,
it should only be created by mkswap (so no
file system on it).

	Cheers.

-- 
	Vidal Bruno, (770-4271)
         SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com



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Hi!

I've tried to compile/boot current 2.4.x CVS, but it Oopsed. I noted
down what looked really important (this is, IAOQ, r02 and kernel
addresses from stack). This is what I resolved out of System.map:

IAOQ:   10224658        __canonicalize_funcptr_for_compare
r02:    101229d4        do_sigaction

Kernel addresses on stack:
        1013a278        dentry_open
        10131a38        __kmem_cache_alloc
        101229d4        do_sigaction
        10102a9c        handle_interruption
        10122dc8        sys_rt_sigaction
        10107f90        syscall_exit
        10107084        intr_check_sig
        10106cf4        _switch_to_ret
        1013be10        chrdev_open
        1013a278        dentry_open
        1014aba8        locate_fd
        1011b530        it_real_fn

Seems I cannot really find it:)

b132l-1:~# gcc -v
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.2.3/specs
Configured with: ../src/configure -v --enable-languages=3Dc,c++,f77,objc,ad=
a --prefix=3D/usr --mandir=3D/usr/share/man --infodir=3D/usr/share/info --w=
ith-gxx-include-dir=3D/usr/include/c++/3.2 --enable-shared --with-system-zl=
ib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-c=
locale=3Dgnu --enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.2.3

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
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Subject: Re: [parisc-linux] Oops on 2.4.20-pa33
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> I've tried to compile/boot current 2.4.x CVS, but it Oopsed. I noted
> down what looked really important (this is, IAOQ, r02 and kernel
> addresses from stack). This is what I resolved out of System.map:
> 
> IAOQ:   10224658        __canonicalize_funcptr_for_compare
> r02:    101229d4        do_sigaction

The fix for this was discussed on the list previously.  There needs
to be some "void *" casts added to various function pointer comparisons.
Search on the above functions to find the thread.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] Oops on 2.4.20-pa33
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> IAOQ:   10224658        __canonicalize_funcptr_for_compare
> r02:    101229d4        do_sigaction

i don't have a 32-bit machine handy, can you try this patch and let me
know if it fixes your problem? An earlier version of this was posted on
this list but didn't get commited. thx -randolph

Index: arch/parisc/kernel/signal.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux/arch/parisc/kernel/signal.c,v
retrieving revision 1.43
diff -u -p -r1.43 signal.c
--- arch/parisc/kernel/signal.c	4 Aug 2002 22:57:47 -0000	1.43
+++ arch/parisc/kernel/signal.c	5 May 2003 20:08:55 -0000
@@ -489,7 +489,7 @@ do_signal(sigset_t *oldset, struct pt_re
 		ka =3D &current->sig->action[signr-1];
 		DBG(("sa_handler is %x\n",=20
 			(unsigned int) ka->sa.sa_handler));
-		if (ka->sa.sa_handler =3D=3D SIG_IGN) {
+		if (ka->sa.sa_handler =3D=3D (void *)SIG_IGN) {
 			if (signr !=3D SIGCHLD)
 				continue;
 			while (sys_wait4(-1, NULL, WNOHANG, NULL) > 0)
@@ -497,7 +497,7 @@ do_signal(sigset_t *oldset, struct pt_re
 			continue;
 		}
=20
-		if (ka->sa.sa_handler =3D=3D SIG_DFL) {
+		if (ka->sa.sa_handler =3D=3D (void *)SIG_DFL) {
 			int exit_code =3D signr;
=20
 			/* Init gets no signals it doesn't want.  */

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Subject: [parisc-linux] [PATCH-2.4] DIVA serial build error (was: Oops on 2.4.20-pa33)
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On Mon, 2003-05-05 13:05:37 -0700, Randolph Chung <randolph@tausq.org>
wrote in message <20030505200537.GF29544@tausq.org>:
> > IAOQ:   10224658        __canonicalize_funcptr_for_compare
> > r02:    101229d4        do_sigaction
>=20
> i don't have a 32-bit machine handy, can you try this patch and let me
> know if it fixes your problem? An earlier version of this was posted on
> this list but didn't get commited. thx -randolph

Oh, forgive me to be that read resistant:)

I'm currently rebuilding the kernel. While doing so, I remembered I had
to do a little compile fix. I'm not sure if it's correct, but at least,
it builds:


--- linux/drivers/char/serial.c.orig	2003-05-05 22:59:23.000000000 +0200
+++ linux/drivers/char/serial.c	2003-05-05 23:00:44.000000000 +0200
@@ -5836,10 +5836,10 @@
=20
 	/* printk("Unloading %s: version %s\n", serial_name, serial_version); */
 	del_timer_sync(&serial_timer);
-#ifdef CONFIG_SERIAL_SHARE_IRQ
+#ifdef CONFIG_HP_DIVA
 	if (hp_diva_count > 0)
 		del_timer_sync(&hp_diva_timer);
-#endif /* CONFIG_SERIAL_SHARE_IRQ */
+#endif /* CONFIG_HP_DIVA */
 	save_flags(flags); cli();
         remove_bh(SERIAL_BH);
 	if ((e1 =3D tty_unregister_driver(&serial_driver)))


MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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Subject: Re: [parisc-linux] Oops on 2.4.20-pa33
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Hi all,

>
>> IAOQ:   10224658        __canonicalize_funcptr_for_compare
>> r02:    101229d4        do_sigaction
>
>i don't have a 32-bit machine handy, can you try this patch and let me
>know if it fixes your problem? An earlier version of this was posted on
>this list but didn't get commited. thx -randolph
>
>Index: arch/parisc/kernel/signal.c
>===================================================================
>RCS file: /var/cvs/linux/arch/parisc/kernel/signal.c,v
>retrieving revision 1.43
>diff -u -p -r1.43 signal.c
>--- arch/parisc/kernel/signal.c	4 Aug 2002 22:57:47 -0000	1.43
>+++ arch/parisc/kernel/signal.c	5 May 2003 20:08:55 -0000

AFAIK here is the full patch I suggested after some mail exchanges with Dave:

diff -Naur linux-2.4.20-pa32/arch/parisc/kernel/signal.c linux-2.4.20-pa32-gcc33/arch/parisc/kernel/signal.c
--- linux-2.4.20-pa32/arch/parisc/kernel/signal.c	2003-03-21 10:54:23.000000000
+0100
+++ linux-2.4.20-pa32-gcc33/arch/parisc/kernel/signal.c	2003-03-21 12:39:20.000000000
+0100
@@ -489,7 +489,11 @@
 		ka = &current->sig->action[signr-1];
 		DBG(("sa_handler is %x\n", 
 			(unsigned int) ka->sa.sa_handler));
+#if !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__
>= 1))
+		if (ka->sa.sa_handler == (void *)SIG_IGN) {
+#else
 		if (ka->sa.sa_handler == SIG_IGN) {
+#endif
 			if (signr != SIGCHLD)
 				continue;
 			while (sys_wait4(-1, NULL, WNOHANG, NULL) > 0)
@@ -497,7 +501,11 @@
 			continue;
 		}
 
+#if !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__
>= 1))
+		if (ka->sa.sa_handler == (void *)SIG_DFL) {
+#else
 		if (ka->sa.sa_handler == SIG_DFL) {
+#endif
 			int exit_code = signr;
 
 			/* Init gets no signals it doesn't want.  */
diff -Naur linux-2.4.20-pa32/drivers/char/n_tty.c linux-2.4.20-pa32-gcc33/drivers/char/n_tty.c
--- linux-2.4.20-pa32/drivers/char/n_tty.c	2003-03-21 10:51:30.000000000
+0100
+++ linux-2.4.20-pa32-gcc33/drivers/char/n_tty.c	2003-03-21 12:34:35.000000000
+0100
@@ -810,7 +810,11 @@
 int is_ignored(int sig)
 {
 	return (sigismember(&current->blocked, sig) ||
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+	        current->sig->action[sig-1].sa.sa_handler == (void *)SIG_IGN);
+#else
 	        current->sig->action[sig-1].sa.sa_handler == SIG_IGN);
+#endif
 }
 
 static void n_tty_set_termios(struct tty_struct *tty, struct termios * old)
diff -Naur linux-2.4.20-pa32/fs/ncpfs/sock.c linux-2.4.20-pa32-gcc33/fs/ncpfs/sock.c
--- linux-2.4.20-pa32/fs/ncpfs/sock.c	2003-03-21 10:36:05.000000000 +0100
+++ linux-2.4.20-pa32-gcc33/fs/ncpfs/sock.c	2003-03-21 12:35:37.000000000
+0100
@@ -466,9 +466,17 @@
 			   What if we've blocked it ourselves?  What about
 			   alarms?  Why, in fact, are we mucking with the
 			   sigmask at all? -- r~ */
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+			if (current->sig->action[SIGINT - 1].sa.sa_handler == (void *)SIG_DFL)
+#else
 			if (current->sig->action[SIGINT - 1].sa.sa_handler == SIG_DFL)
+#endif
 				mask |= sigmask(SIGINT);
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+			if (current->sig->action[SIGQUIT - 1].sa.sa_handler == (void *)SIG_DFL)
+#else
 			if (current->sig->action[SIGQUIT - 1].sa.sa_handler == SIG_DFL)
+#endif
 				mask |= sigmask(SIGQUIT);
 		}
 		siginitsetinv(&current->blocked, mask);
diff -Naur linux-2.4.20-pa32/fs/proc/array.c linux-2.4.20-pa32-gcc33/fs/proc/array.c
--- linux-2.4.20-pa32/fs/proc/array.c	2003-03-21 10:01:18.000000000 +0100
+++ linux-2.4.20-pa32-gcc33/fs/proc/array.c	2003-03-21 12:36:44.000000000
+0100
@@ -231,9 +231,17 @@
 	if (p->sig) {
 		k = p->sig->action;
 		for (i = 1; i <= _NSIG; ++i, ++k) {
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+			if (k->sa.sa_handler == (void *)SIG_IGN)
+#else
 			if (k->sa.sa_handler == SIG_IGN)
+#endif
 				sigaddset(ign, i);
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+			else if (k->sa.sa_handler != (void *)SIG_DFL)
+#else
 			else if (k->sa.sa_handler != SIG_DFL)
+#endif
 				sigaddset(catch, i);
 		}
 	}
diff -Naur linux-2.4.20-pa32/include/linux/compiler.h linux-2.4.20-pa32-gcc33/include/linux/compiler.h
--- linux-2.4.20-pa32/include/linux/compiler.h	2003-03-21 12:31:39.000000000
+0100
+++ linux-2.4.20-pa32-gcc33/include/linux/compiler.h	2003-03-21 12:32:07.000000000
+0100
@@ -1,6 +1,12 @@
 #ifndef __LINUX_COMPILER_H
 #define __LINUX_COMPILER_H
 
+#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
+#define inline		__inline__ __attribute__((always_inline))
+#define __inline__	__inline__ __attribute__((always_inline))
+#define __inline	__inline__ __attribute__((always_inline))
+#endif
+
 /* Somewhere in the middle of the GCC 2.96 development cycle, we implemented
    a mechanism by which the user can annotate likely branch directions and
    expect the blocks to be reordered appropriately.  Define __builtin_expect
diff -Naur linux-2.4.20-pa32/kernel/signal.c linux-2.4.20-pa32-gcc33/kernel/signal.c
--- linux-2.4.20-pa32/kernel/signal.c	2003-03-21 10:39:32.000000000 +0100
+++ linux-2.4.20-pa32-gcc33/kernel/signal.c	2003-03-21 12:37:40.000000000
+0100
@@ -126,7 +126,11 @@
 	int i;
 	struct k_sigaction *ka = &t->sig->action[0];
 	for (i = _NSIG ; i != 0 ; i--) {
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+		if (ka->sa.sa_handler != (void *)SIG_IGN)
+#else
 		if (ka->sa.sa_handler != SIG_IGN)
+#endif
 			ka->sa.sa_handler = SIG_DFL;
 		ka->sa.sa_flags = 0;
 		sigemptyset(&ka->sa.sa_mask);
@@ -572,7 +576,11 @@
 		return -ESRCH;
 	}
 
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+	if (t->sig->action[sig-1].sa.sa_handler == (void *)SIG_IGN)
+#else
 	if (t->sig->action[sig-1].sa.sa_handler == SIG_IGN)
+#endif
 		t->sig->action[sig-1].sa.sa_handler = SIG_DFL;
 	sigdelset(&t->blocked, sig);
 	recalc_sigpending(t);
@@ -1094,8 +1102,13 @@
 		 * the signal to be ignored.
 		 */
 
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+		if (k->sa.sa_handler == (void *)SIG_IGN
+		    || (k->sa.sa_handler == (void *)SIG_DFL
+#else
 		if (k->sa.sa_handler == SIG_IGN
 		    || (k->sa.sa_handler == SIG_DFL
+#endif
 			&& (sig == SIGCONT ||
 			    sig == SIGCHLD ||
 			    sig == SIGURG ||
diff -Naur linux-2.4.20-pa32/net/sunrpc/clnt.c linux-2.4.20-pa32-gcc33/net/sunrpc/clnt.c
--- linux-2.4.20-pa32/net/sunrpc/clnt.c	2003-03-21 10:46:28.000000000 +0100
+++ linux-2.4.20-pa32-gcc33/net/sunrpc/clnt.c	2003-03-21 12:38:07.000000000
+0100
@@ -209,9 +209,17 @@
 	/* Turn off various signals */
 	if (clnt->cl_intr) {
 		struct k_sigaction *action = current->sig->action;
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+		if (action[SIGINT-1].sa.sa_handler == (void *)SIG_DFL)
+#else
 		if (action[SIGINT-1].sa.sa_handler == SIG_DFL)
+#endif
 			sigallow |= sigmask(SIGINT);
+#if defined (__hppa__) && !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__
== 3 && __GNUC_MINOR__ >= 1))
+		if (action[SIGQUIT-1].sa.sa_handler == (void *)SIG_DFL)
+#else
 		if (action[SIGQUIT-1].sa.sa_handler == SIG_DFL)
+#endif
 			sigallow |= sigmask(SIGQUIT);
 	}
 	spin_lock_irqsave(&current->sigmask_lock, irqflags);

hth,
    Joel

PS: It was writen for gcc > 3.1 and I was just working on a simplification
(remove _GNUC_ [sub]version test as suggested by Willy) but during test with
so gcc-3.0 I encounter HW pb with my b2k of test. I finaly compile but runs
seems to present pb (but I quiet convience it is the HW pb). Can somebody
else would test more?


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Subject: [parisc-linux] HSC Visualise 48XP framebuffer question
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Hello list

I decomissioned an old K-class system for a client today and I was
surprised to find a full-size HSC Visualise 48XP framebuffer card. Quite an
imposing card - it has genlock in, s-video out, composite video out, and an
EVC video to monitor socket.

I got permission to keep the card. Unfortunately I'm having trouble finding
any info about it. Is this card functionally identical to the more
conventional 48XP found in older C & J class workstations?

Regards,

Gavin



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> AFAIK here is the full patch I suggested after some mail exchanges with Dave:
> 

I think willy already mentioned that:

> +#if !defined (__LP64__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__
> >= 1))
> +		if (ka->sa.sa_handler == (void *)SIG_IGN) {
> +#else
>  		if (ka->sa.sa_handler == SIG_IGN) {
> +#endif

is wrong.. just do

> +		if (ka->sa.sa_handler == (void *)SIG_IGN) {

unconditionally. don't put the ifdef's in.

can you post a cleaned up patch?

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>
>is wrong.. just do
>
>> +		if (ka->sa.sa_handler == (void *)SIG_IGN) {
>
>unconditionally. don't put the ifdef's in.
>
That is ok for me (even if I don't understand very well :( ; afaik the previous
code works fine for gcc<=3.1 and do not seems to concern 64bits? )

That said, I will try to prepare a new patch asap.

Joel


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> That is ok for me (even if I don't understand very well :( ; afaik the previous
> code works fine for gcc<=3.1 and do not seems to concern 64bits? )

The point is that if the new code is always correct, then littering 
the code with #ifdef's makes the code hard to read and maintain. If 
you really need to make the code different for the two cases, it's 
better to conditionally define a function/macro in a single place 
(header file) and use that in the source, rather than having ifdef's 
in many places.

HTH,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Mon, 2003-05-05 23:05:32 +0200, Jan-Benedict Glaw <jbglaw@lug-owl.de>
wrote in message <20030505210532.GU27494@lug-owl.de>:
> On Mon, 2003-05-05 13:05:37 -0700, Randolph Chung <randolph@tausq.org>
> wrote in message <20030505200537.GF29544@tausq.org>:
> > > IAOQ:   10224658        __canonicalize_funcptr_for_compare
> > > r02:    101229d4        do_sigaction
> >=20
> > i don't have a 32-bit machine handy, can you try this patch and let me
> > know if it fixes your problem? An earlier version of this was posted on
> > this list but didn't get commited. thx -randolph
>=20
> Oh, forgive me to be that read resistant:)

I've tried your patch - the box still crashed, but I haven't noted down
all the crash (out of time:( I'll redo it most probably this evening.

Has anybody looked at the other patch (I sent with the mail I'm now
replyin' to)? It was needed and seems to be correct. Is anybody to check
it into CVS?

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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>
>That said, I will try to prepare a new patch asap.
>
Ok here we are:

=====
diff -NaurX dontdiff linux-2.4.20-pa33/arch/parisc/kernel/signal.c linux-2.4.20-pa33-gcc33/arch/parisc/kernel/signal.c
--- linux-2.4.20-pa33/arch/parisc/kernel/signal.c	2003-05-06 17:47:32.000000000
+0200
+++ linux-2.4.20-pa33-gcc33/arch/parisc/kernel/signal.c	2003-05-06 18:09:35.000000000
+0200
@@ -489,7 +489,7 @@
 		ka = &current->sig->action[signr-1];
 		DBG(("sa_handler is %x\n", 
 			(unsigned int) ka->sa.sa_handler));
-		if (ka->sa.sa_handler == SIG_IGN) {
+		if (ka->sa.sa_handler == (void *)SIG_IGN) {
 			if (signr != SIGCHLD)
 				continue;
 			while (sys_wait4(-1, NULL, WNOHANG, NULL) > 0)
@@ -497,7 +497,7 @@
 			continue;
 		}
 
-		if (ka->sa.sa_handler == SIG_DFL) {
+		if (ka->sa.sa_handler == (void *)SIG_DFL) {
 			int exit_code = signr;
 
 			/* Init gets no signals it doesn't want.  */
diff -NaurX dontdiff linux-2.4.20-pa33/drivers/char/n_tty.c linux-2.4.20-pa33-gcc33/drivers/char/n_tty.c
--- linux-2.4.20-pa33/drivers/char/n_tty.c	2003-05-06 17:49:36.000000000
+0200
+++ linux-2.4.20-pa33-gcc33/drivers/char/n_tty.c	2003-05-06 18:10:25.000000000
+0200
@@ -810,7 +810,11 @@
 int is_ignored(int sig)
 {
 	return (sigismember(&current->blocked, sig) ||
+#if defined (__hppa__)
+	        current->sig->action[sig-1].sa.sa_handler == (void *)SIG_IGN);
+#else
 	        current->sig->action[sig-1].sa.sa_handler == SIG_IGN);
+#endif
 }
 
 static void n_tty_set_termios(struct tty_struct *tty, struct termios * old)
diff -NaurX dontdiff linux-2.4.20-pa33/fs/ncpfs/sock.c linux-2.4.20-pa33-gcc33/fs/ncpfs/sock.c
--- linux-2.4.20-pa33/fs/ncpfs/sock.c	2003-05-06 17:50:52.000000000 +0200
+++ linux-2.4.20-pa33-gcc33/fs/ncpfs/sock.c	2003-05-06 18:11:12.000000000
+0200
@@ -466,9 +466,17 @@
 			   What if we've blocked it ourselves?  What about
 			   alarms?  Why, in fact, are we mucking with the
 			   sigmask at all? -- r~ */
+#if defined (__hppa__)
+			if (current->sig->action[SIGINT - 1].sa.sa_handler == (void *)SIG_DFL)
+#else
 			if (current->sig->action[SIGINT - 1].sa.sa_handler == SIG_DFL)
+#endif
 				mask |= sigmask(SIGINT);
+#if defined (__hppa__)
+			if (current->sig->action[SIGQUIT - 1].sa.sa_handler == (void *)SIG_DFL)
+#else
 			if (current->sig->action[SIGQUIT - 1].sa.sa_handler == SIG_DFL)
+#endif
 				mask |= sigmask(SIGQUIT);
 		}
 		siginitsetinv(&current->blocked, mask);
diff -NaurX dontdiff linux-2.4.20-pa33/fs/proc/array.c linux-2.4.20-pa33-gcc33/fs/proc/array.c
--- linux-2.4.20-pa33/fs/proc/array.c	2002-08-07 07:56:58.000000000 +0200
+++ linux-2.4.20-pa33-gcc33/fs/proc/array.c	2003-05-06 18:12:07.000000000
+0200
@@ -231,9 +231,17 @@
 	if (p->sig) {
 		k = p->sig->action;
 		for (i = 1; i <= _NSIG; ++i, ++k) {
+#if defined (__hppa__)
+			if (k->sa.sa_handler == (void *)SIG_IGN)
+#else
 			if (k->sa.sa_handler == SIG_IGN)
+#endif
 				sigaddset(ign, i);
+#if defined (__hppa__)
+			else if (k->sa.sa_handler != (void *)SIG_DFL)
+#else
 			else if (k->sa.sa_handler != SIG_DFL)
+#endif
 				sigaddset(catch, i);
 		}
 	}
diff -NaurX dontdiff linux-2.4.20-pa33/kernel/signal.c linux-2.4.20-pa33-gcc33/kernel/signal.c
--- linux-2.4.20-pa33/kernel/signal.c	2002-11-29 07:49:17.000000000 +0100
+++ linux-2.4.20-pa33-gcc33/kernel/signal.c	2003-05-06 18:13:50.000000000
+0200
@@ -126,7 +126,11 @@
 	int i;
 	struct k_sigaction *ka = &t->sig->action[0];
 	for (i = _NSIG ; i != 0 ; i--) {
+#if defined (__hppa__)
+		if (ka->sa.sa_handler != (void *)SIG_IGN)
+#else
 		if (ka->sa.sa_handler != SIG_IGN)
+#endif
 			ka->sa.sa_handler = SIG_DFL;
 		ka->sa.sa_flags = 0;
 		sigemptyset(&ka->sa.sa_mask);
@@ -572,7 +576,11 @@
 		return -ESRCH;
 	}
 
+#if defined (__hppa__)
+	if (t->sig->action[sig-1].sa.sa_handler == (void *)SIG_IGN)
+#else
 	if (t->sig->action[sig-1].sa.sa_handler == SIG_IGN)
+#endif
 		t->sig->action[sig-1].sa.sa_handler = SIG_DFL;
 	sigdelset(&t->blocked, sig);
 	recalc_sigpending(t);
@@ -1094,8 +1102,13 @@
 		 * the signal to be ignored.
 		 */
 
+#if defined (__hppa__)
+		if (k->sa.sa_handler == (void *)SIG_IGN
+		    || (k->sa.sa_handler == (void *)SIG_DFL
+#else
 		if (k->sa.sa_handler == SIG_IGN
 		    || (k->sa.sa_handler == SIG_DFL
+#endif
 			&& (sig == SIGCONT ||
 			    sig == SIGCHLD ||
 			    sig == SIGURG ||
diff -NaurX dontdiff linux-2.4.20-pa33/net/sunrpc/clnt.c linux-2.4.20-pa33-gcc33/net/sunrpc/clnt.c
--- linux-2.4.20-pa33/net/sunrpc/clnt.c	2003-05-06 18:03:20.000000000 +0200
+++ linux-2.4.20-pa33-gcc33/net/sunrpc/clnt.c	2003-05-06 18:14:43.000000000
+0200
@@ -209,9 +209,17 @@
 	/* Turn off various signals */
 	if (clnt->cl_intr) {
 		struct k_sigaction *action = current->sig->action;
+#if defined (__hppa__)
+		if (action[SIGINT-1].sa.sa_handler == (void *)SIG_DFL)
+#else
 		if (action[SIGINT-1].sa.sa_handler == SIG_DFL)
+#endif
 			sigallow |= sigmask(SIGINT);
+#if defined (__hppa__)
+		if (action[SIGQUIT-1].sa.sa_handler == (void *)SIG_DFL)
+#else
 		if (action[SIGQUIT-1].sa.sa_handler == SIG_DFL)
+#endif
 			sigallow |= sigmask(SIGQUIT);
 	}
 	spin_lock_irqsave(&current->sigmask_lock, irqflags);
diff -NaurX dontdiff linux-2.4.20-pa33/include/linux/compiler.h linux-2.4.20-pa33-gcc33/include/linux/compiler.h
--- linux-2.4.20-pa33/include/linux/compiler.h	2003-05-06 18:01:11.000000000
+0200
+++ linux-2.4.20-pa33-gcc33/include/linux/compiler.h	2003-05-06 18:08:56.000000000
+0200
@@ -1,6 +1,12 @@
 #ifndef __LINUX_COMPILER_H
 #define __LINUX_COMPILER_H
 
+#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
+#define inline		__inline__ __attribute__((always_inline))
+#define __inline__	__inline__ __attribute__((always_inline))
+#define __inline	__inline__ __attribute__((always_inline))
+#endif
+
 /* Somewhere in the middle of the GCC 2.96 development cycle, we implemented
    a mechanism by which the user can annotate likely branch directions and
    expect the blocks to be reordered appropriately.  Define __builtin_expect

PS1: compiler patch is not of me; a backport suggested in the pa-ml (Willy
iirc)

PS2: for files in main tree I save (if _hppa_ because seems to be specific
to hppa according very early Dave mail :)

hth,
    Joel


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> +#if defined (__hppa__)
> +	        current->sig->action[sig-1].sa.sa_handler == (void *)SIG_IGN);
> +#else
>  	        current->sig->action[sig-1].sa.sa_handler == SIG_IGN);
> +#endif

You don't need to conditionalize the statement with the cast.  It should
work on all ports.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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>> That is ok for me (even if I don't understand very well :( ; afaik the
>previous
>> code works fine for gcc<=3.1 and do not seems to concern 64bits? )
>
>The point is that if the new code is always correct, then littering
>the code with #ifdef's makes the code hard to read and maintain. If
>you really need to make the code different for the two cases, it's
>better to conditionally define a function/macro in a single place
>(header file) and use that in the source, rather than having ifdef's
>in many places.
>
>HTH,

Very clear now, but not easy to implement:
- which name to give to such a macro
- where to implement it:
    the temptation to change the definition of SIG_IGN and SIG_DFL in asm-parisc/signal.h
is great but it will solve comparison pb but will broken variable affectation.
    So may be better to define something like:
#define CMP_SIG( (x), (cmp), (y) ( (x) (cmp) (void*)(y) )

(but care have to be taken to always place SIG_... at the right (y) place?)

then change all occurences of SIG_... comparison??

There must be better idea else where but I ignore it :(
Also suggestion is welcome.

Thanks again,
    Joel



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> Very clear now, but not easy to implement:
> - which name to give to such a macro
> - where to implement it:

well, in this case you don't need it... i just mention it for the case
where this is needed. Here, you really can just unconditioanlly
compare against (void *)SIG_foo

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>> +#if defined (__hppa__)
>> +	        current->sig->action[sig-1].sa.sa_handler == (void *)SIG_IGN);
>> +#else
>>  	        current->sig->action[sig-1].sa.sa_handler == SIG_IGN);
>> +#endif
>
>You don't need to conditionalize the statement with the cast.  It should
>work on all ports.
>
I trust you.

So it will finaly become:
diff -NaurX dontdiff linux-2.4.20-pa33/arch/parisc/kernel/signal.c linux-2.4.20-pa33-gcc33/arch/parisc/kernel/signal.c
--- linux-2.4.20-pa33/arch/parisc/kernel/signal.c	2003-05-06 17:47:32.000000000
+0200
+++ linux-2.4.20-pa33-gcc33/arch/parisc/kernel/signal.c	2003-05-06 18:09:35.000000000
+0200
@@ -489,7 +489,7 @@
 		ka = &current->sig->action[signr-1];
 		DBG(("sa_handler is %x\n", 
 			(unsigned int) ka->sa.sa_handler));
-		if (ka->sa.sa_handler == SIG_IGN) {
+		if (ka->sa.sa_handler == (void *)SIG_IGN) {
 			if (signr != SIGCHLD)
 				continue;
 			while (sys_wait4(-1, NULL, WNOHANG, NULL) > 0)
@@ -497,7 +497,7 @@
 			continue;
 		}
 
-		if (ka->sa.sa_handler == SIG_DFL) {
+		if (ka->sa.sa_handler == (void *)SIG_DFL) {
 			int exit_code = signr;
 
 			/* Init gets no signals it doesn't want.  */
diff -NaurX dontdiff linux-2.4.20-pa33/drivers/char/n_tty.c linux-2.4.20-pa33-gcc33/drivers/char/n_tty.c
--- linux-2.4.20-pa33/drivers/char/n_tty.c	2003-05-06 17:49:36.000000000
+0200
+++ linux-2.4.20-pa33-gcc33/drivers/char/n_tty.c	2003-05-06 19:59:33.000000000
+0200
@@ -810,7 +810,7 @@
 int is_ignored(int sig)
 {
 	return (sigismember(&current->blocked, sig) ||
-	        current->sig->action[sig-1].sa.sa_handler == SIG_IGN);
+	        current->sig->action[sig-1].sa.sa_handler == (void *)SIG_IGN);
 }
 
 static void n_tty_set_termios(struct tty_struct *tty, struct termios * old)
diff -NaurX dontdiff linux-2.4.20-pa33/fs/ncpfs/sock.c linux-2.4.20-pa33-gcc33/fs/ncpfs/sock.c
--- linux-2.4.20-pa33/fs/ncpfs/sock.c	2003-05-06 17:50:52.000000000 +0200
+++ linux-2.4.20-pa33-gcc33/fs/ncpfs/sock.c	2003-05-06 19:59:53.000000000
+0200
@@ -466,9 +466,9 @@
 			   What if we've blocked it ourselves?  What about
 			   alarms?  Why, in fact, are we mucking with the
 			   sigmask at all? -- r~ */
-			if (current->sig->action[SIGINT - 1].sa.sa_handler == SIG_DFL)
+			if (current->sig->action[SIGINT - 1].sa.sa_handler == (void *)SIG_DFL)
 				mask |= sigmask(SIGINT);
-			if (current->sig->action[SIGQUIT - 1].sa.sa_handler == SIG_DFL)
+			if (current->sig->action[SIGQUIT - 1].sa.sa_handler == (void *)SIG_DFL)
 				mask |= sigmask(SIGQUIT);
 		}
 		siginitsetinv(&current->blocked, mask);
diff -NaurX dontdiff linux-2.4.20-pa33/fs/proc/array.c linux-2.4.20-pa33-gcc33/fs/proc/array.c
--- linux-2.4.20-pa33/fs/proc/array.c	2002-08-07 07:56:58.000000000 +0200
+++ linux-2.4.20-pa33-gcc33/fs/proc/array.c	2003-05-06 20:00:10.000000000
+0200
@@ -231,9 +231,9 @@
 	if (p->sig) {
 		k = p->sig->action;
 		for (i = 1; i <= _NSIG; ++i, ++k) {
-			if (k->sa.sa_handler == SIG_IGN)
+			if (k->sa.sa_handler == (void *)SIG_IGN)
 				sigaddset(ign, i);
-			else if (k->sa.sa_handler != SIG_DFL)
+			else if (k->sa.sa_handler != (void *)SIG_DFL)
 				sigaddset(catch, i);
 		}
 	}
diff -NaurX dontdiff linux-2.4.20-pa33/kernel/signal.c linux-2.4.20-pa33-gcc33/kernel/signal.c
--- linux-2.4.20-pa33/kernel/signal.c	2002-11-29 07:49:17.000000000 +0100
+++ linux-2.4.20-pa33-gcc33/kernel/signal.c	2003-05-06 20:01:00.000000000
+0200
@@ -126,7 +126,7 @@
 	int i;
 	struct k_sigaction *ka = &t->sig->action[0];
 	for (i = _NSIG ; i != 0 ; i--) {
-		if (ka->sa.sa_handler != SIG_IGN)
+		if (ka->sa.sa_handler != (void *)SIG_IGN)
 			ka->sa.sa_handler = SIG_DFL;
 		ka->sa.sa_flags = 0;
 		sigemptyset(&ka->sa.sa_mask);
@@ -572,7 +572,7 @@
 		return -ESRCH;
 	}
 
-	if (t->sig->action[sig-1].sa.sa_handler == SIG_IGN)
+	if (t->sig->action[sig-1].sa.sa_handler == (void *)SIG_IGN)
 		t->sig->action[sig-1].sa.sa_handler = SIG_DFL;
 	sigdelset(&t->blocked, sig);
 	recalc_sigpending(t);
@@ -1094,8 +1094,8 @@
 		 * the signal to be ignored.
 		 */
 
-		if (k->sa.sa_handler == SIG_IGN
-		    || (k->sa.sa_handler == SIG_DFL
+		if (k->sa.sa_handler == (void *)SIG_IGN
+		    || (k->sa.sa_handler == (void *)SIG_DFL
 			&& (sig == SIGCONT ||
 			    sig == SIGCHLD ||
 			    sig == SIGURG ||
diff -NaurX dontdiff linux-2.4.20-pa33/net/sunrpc/clnt.c linux-2.4.20-pa33-gcc33/net/sunrpc/clnt.c
--- linux-2.4.20-pa33/net/sunrpc/clnt.c	2003-05-06 18:03:20.000000000 +0200
+++ linux-2.4.20-pa33-gcc33/net/sunrpc/clnt.c	2003-05-06 20:01:16.000000000
+0200
@@ -209,9 +209,9 @@
 	/* Turn off various signals */
 	if (clnt->cl_intr) {
 		struct k_sigaction *action = current->sig->action;
-		if (action[SIGINT-1].sa.sa_handler == SIG_DFL)
+		if (action[SIGINT-1].sa.sa_handler == (void *)SIG_DFL)
 			sigallow |= sigmask(SIGINT);
-		if (action[SIGQUIT-1].sa.sa_handler == SIG_DFL)
+		if (action[SIGQUIT-1].sa.sa_handler == (void *)SIG_DFL)
 			sigallow |= sigmask(SIGQUIT);
 	}
 	spin_lock_irqsave(&current->sigmask_lock, irqflags);
diff -NaurX dontdiff linux-2.4.20-pa33/include/linux/compiler.h linux-2.4.20-pa33-gcc33/include/linux/compiler.h
--- linux-2.4.20-pa33/include/linux/compiler.h	2003-05-06 18:01:11.000000000
+0200
+++ linux-2.4.20-pa33-gcc33/include/linux/compiler.h	2003-05-06 18:08:56.000000000
+0200
@@ -1,6 +1,12 @@
 #ifndef __LINUX_COMPILER_H
 #define __LINUX_COMPILER_H
 
+#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
+#define inline		__inline__ __attribute__((always_inline))
+#define __inline__	__inline__ __attribute__((always_inline))
+#define __inline	__inline__ __attribute__((always_inline))
+#endif
+
 /* Somewhere in the middle of the GCC 2.96 development cycle, we implemented
    a mechanism by which the user can annotate likely branch directions and
    expect the blocks to be reordered appropriately.  Define __builtin_expect

If everybody agree is somebody could comit it (I haven't any ci cvs access
and it is better like this :)

Joel

PS: for gcc-3.2 there are still pending patch to be comitted iirc:
diff -NaurX dontdiff linux-2.4.20-pa33/include/asm-parisc/spinlock.h linux-2.4.20-pa33-gcc33/include/asm-parisc/spinlock.h
--- linux-2.4.20-pa33/include/asm-parisc/spinlock.h	2003-05-06 20:19:36.000000000
+0200
+++ linux-2.4.20-pa33-gcc33/include/asm-parisc/spinlock.h	2003-05-06 20:23:14.000000000
+0200
@@ -14,7 +14,7 @@
 	volatile int counter;
 } rwlock_t;
 
-#define RW_LOCK_UNLOCKED (rwlock_t) { SPIN_LOCK_UNLOCKED, 0 }
+#define RW_LOCK_UNLOCKED (rwlock_t) { SPIN_LOCK_UNLOCKED_INIT, 0 }
 
 #define rwlock_init(lp)	do { *(lp) = RW_LOCK_UNLOCKED; } while (0)
 
diff -NaurX dontdiff linux-2.4.20-pa33/include/asm-parisc/spinlock_t.h linux-2.4.20-pa33-gcc33/include/asm-parisc/spinlock_t.h
--- linux-2.4.20-pa33/include/asm-parisc/spinlock_t.h	2003-05-06 20:19:36.000000000
+0200
+++ linux-2.4.20-pa33-gcc33/include/asm-parisc/spinlock_t.h	2003-05-06 20:24:07.000000000
+0200
@@ -47,7 +47,9 @@
 } spinlock_t;
 
 #ifndef CONFIG_DEBUG_SPINLOCK
-#define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 }
+/* This following change because of gcc-3.2 limits for C99 compilience */
+#define SPIN_LOCK_UNLOCKED_INIT { 1 }
+#define SPIN_LOCK_UNLOCKED (spinlock_t) SPIN_LOCK_UNLOCKED_INIT
 
 /* Define 6 spinlock primitives that don't depend on anything else. */
 
@@ -79,7 +81,9 @@
 
 #else
 
-#define SPIN_LOCK_UNLOCKED (spinlock_t) { 1, 0, 0 }
+/* This following change because of gcc-3.2 limits for C99 compilience */
+#define SPIN_LOCK_UNLOCKED_INIT { 1, 0L, 0L }
+#define SPIN_LOCK_UNLOCKED (spinlock_t) SPIN_LOCK_UNLOCKED_INIT
 
 /* Define 6 spinlock primitives that don't depend on anything else. */
 
 	spin_lock_irqsave(&current->sigmask_lock, irqflags);



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From - Thu Nov 08 21:27:43 2018
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From: "Stephen Travers" <STravers@mc.edu>
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Hi All,

I need help with my hp 9000/809 (k100).  I have tried installing linux =
with the lastest iso's from the parisc-linux website 6 times.  Through =
research on the mailing lists, i have changed the boot command line to use =
ttyB0 instead of the default ttyS0, but to no avail.

I have downloaded the "pdc" net install iso's from fr.parisc-linux.org.  =
This iso booted (after the ttyB0 change) and the familiar installation =
program loaded the "base system" onto my machine (it found the SCSI =
controlers, disks, and the 100TX network card).  After the base install =
finishes and the system reboots.  Its comes up with the message "this may =
be the last message you see" and it IS the last message i see.  It tells =
me to change my console...

This is where I need help!  How do I "change the console"?  I've tried =
using a standard dumb terminal and i've tried connecting the machine to a =
PC running MicroSoft's Hyperterm.  The machine won't display anything past =
that point.

If its a Kernel change, can i make it on any linux box, or do i need an =
HPPA box running linux to do it?

Thank you for ANY help you can offer me.

-stephen




---------------------------------------
Stephen Travers
Academic Support Spec.
stravers@mc.edu
601.925.3939




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On Tue, May 06, 2003 at 03:43:08PM -0500, Stephen Travers wrote:
> This is where I need help!  How do I "change the console"?

What's meant here is use a different "console=" parameter.
Not as in "changing the oil" (in your car) or a diaper. ;^)

See the FAQ for how to change parameters in the boot loader.


hth,
grant


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On Tuesday, May 6, 2003, at 08:42 US/Eastern, Gavin Hubbard wrote:

> I got permission to keep the card. Unfortunately I'm having trouble 
> finding
> any info about it. Is this card functionally identical to the more
> conventional 48XP found in older C & J class workstations?

Yes, it is.



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On Tue, May 06, 2003 at 08:28:50PM -0500, Stephen Travers wrote:
> >>> Grant Grundler <grundler@parisc-linux.org> 5/6/2003 8:21:33 PM >>>
> >>> What's meant here is use a different "console=" parameter.
> right
> i assume that's what console=ttyx0 and term=vt102 are?
> if so, they don't seem to do any good....ttyS0 gives memory errors and ttyB0 boots and stops displaying info at the line I specified.
 
ah ok. I guess I missed that in your mail.

grant


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On Tue, 2003-05-06 19:56:48 +0200, Joel Soete <jsoe0708@tiscali.be>
wrote in message <3EB7766A000003EE@ocpmta7.freegates.net>:
> >> +#if defined (__hppa__)
> >> +	        current->sig->action[sig-1].sa.sa_handler =3D=3D (void *)SIG=
_IGN);
> >> +#else
> >>  	        current->sig->action[sig-1].sa.sa_handler =3D=3D SIG_IGN);
> >> +#endif
> >
> >You don't need to conditionalize the statement with the cast.  It should
> >work on all ports.
> >
> I trust you.
>=20
> So it will finaly become:
[...]

With this patch applied (plus the diva patch I've sent to the list these
days) I can compile'n'boot:

jbglaw@b132l-1:~$ uname -a
Linux b132l-1 2.4.20-pa33 #15 Wed May 7 08:29:13 CEST 2003 parisc unknown u=
nknown GNU/Linux

So I think it would be nice to put this patch into CVS.

MfG, JBG

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>On Tue, 2003-05-06 19:56:48 +0200, Joel Soete <jsoe0708@tiscali.be>
>wrote in message <3EB7766A000003EE@ocpmta7.freegates.net>:
>> >> +#if defined (__hppa__)
>> >> +	        current->sig->action[sig-1].sa.sa_handler == (void *)SIG_IGN);
>> >> +#else
>> >>  	        current->sig->action[sig-1].sa.sa_handler == SIG_IGN);
>> >> +#endif
>> >
>> >You don't need to conditionalize the statement with the cast.  It should
>> >work on all ports.
>> >
>> I trust you.
>> 
>> So it will finaly become:
>[...]
>
>With this patch applied (plus the diva patch I've sent to the list these
>days) I can compile'n'boot:

Thanks first for feedback.
I also have a look on your patch and it seems to me relevant.

>
>jbglaw@b132l-1:~$ uname -a
>Linux b132l-1 2.4.20-pa33 #15 Wed May 7 08:29:13 CEST 2003 parisc unknown
>unknown GNU/Linux
>
>So I think it would be nice to put this patch into CVS.
>
I hope also it will be ci but I could not help.

Thanks again,
    Joel


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Subject: Re: [parisc-linux] [PATCH-2.4] DIVA serial build error (was: Oops on 2.4.20-pa33)
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> 
> Has anybody looked at the other patch (I sent with the mail I'm now
> replyin' to)? It was needed and seems to be correct. Is anybody to check
> it into CVS?
> 

Yes, it's correct and I'll apply it in CVS shortly.  Thanks so much!

	-P


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Hi Thibaut,

As I mentioned in other mail, my b2k crashed during an apt-get upgrade (due
to an hw pb). This corrupted its root fs.

I would like so to re-install it and the only way I know for a b2k (because
of this ide cdrom) is to use a lifimage. I try severall of your lifimages
but all hang during "search devices" (iirc the kernel config is not adapted
for this b2k :( ).

I would so try to find help in your script isobuild.sh to rebuild my lifimage
with my kernel which I know operational on this model. Unfortunately each
time I try to read it i got following error message:
Forbidden
You don't have permission to access /archive/scripts/isobuild.sh on this
server.

Thanks in advance for help,
    Joel

PS: Would it not be put also into build-tools cvs tree?

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I used a netinst iso on my B2000 without any issues.  Same with my C3000 derek

Joel Soete <jsoe0708@tiscali.be> wrote:Hi Thibaut,

As I mentioned in other mail, my b2k crashed during an apt-get upgrade (due
to an hw pb). This corrupted its root fs.

I would like so to re-install it and the only way I know for a b2k (because
of this ide cdrom) is to use a lifimage. I try severall of your lifimages
but all hang during "search devices" (iirc the kernel config is not adapted
for this b2k :( ).

I would so try to find help in your script isobuild.sh to rebuild my lifimage
with my kernel which I know operational on this model. Unfortunately each
time I try to read it i got following error message:
Forbidden
You don't have permission to access /archive/scripts/isobuild.sh on this
server.

Thanks in advance for help,
Joel

PS: Would it not be put also into build-tools cvs tree?

---------------------------------
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<DIV>
<DIV>I used a netinst iso on my B2000 without any issues.&nbsp; Same with my C3000</DIV>
<DIV>&nbsp;</DIV>
<DIV>derek<BR><BR><B><I>Joel Soete &lt;jsoe0708@tiscali.be&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Hi Thibaut,<BR><BR>As I mentioned in other mail, my b2k crashed during an apt-get upgrade (due<BR>to an hw pb). This corrupted its root fs.<BR><BR>I would like so to re-install it and the only way I know for a b2k (because<BR>of this ide cdrom) is to use a lifimage. I try severall of your lifimages<BR>but all hang during "search devices" (iirc the kernel config is not adapted<BR>for this b2k :( ).<BR><BR>I would so try to find help in your script isobuild.sh to rebuild my lifimage<BR>with my kernel which I know operational on this model. Unfortunately each<BR>time I try to read it i got following error message:<BR>Forbidden<BR>You don't have permission to access /archive/scripts/isobuild.sh on this<BR>s
 erver.<BR><BR>Thanks in advance for help,<BR>Joel<BR><BR>PS: Would it not be put also into build-tools cvs tree?<BR><BR>---------------------------------<BR>Vous surfez avec une ligne classique ?<BR>Economisez jusqu' 25% avec Tiscali Complete !<BR>Offre spciale : premire anne d'abonnement offerte.<BR>... Plus d'info sur http://complete.tiscali.be<BR><BR><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE></DIV><p><hr SIZE=1>
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>
>I used a netinst iso on my B2000 without any issues.
umm great but it doesn't work for me :( (I trust that lifimage into net iso
is the same as i grab seperately on esiee.fr and which I 'md5' check). Do
I have to disconnect ide cdrom?

Thanks in advance for additional info,
    Joel


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> >So I think it would be nice to put this patch into CVS.
> >
> I hope also it will be ci but I could not help.

it's in 2.4.20-pa35 now.

Joel, do you think you can come up with a version that applies to 2.5 as
well?

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Le mercredi, 7 mai 2003, =E0 18:35 Europe/Paris, Joel Soete a =E9crit :
>
> You don't have permission to access /archive/scripts/isobuild.sh on=20
> this
> server.
corrected
>
> Thanks in advance for help,
>     Joel
>
> PS: Would it not be put also into build-tools cvs tree?
i don't think so.
it's not useable per se, and I think you'll have trouble with it.
it's just published to give an idea what has to be done to build an ISO.


Thibaut VARENE
The PA/Linux ESIEE Team
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From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
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Subject: Re: [parisc-linux] Oops on 2.4.20-pa33
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On Wed, 2003-05-07 10:17:34 -0700, Randolph Chung <randolph@tausq.org>
wrote in message <20030507171734.GG23465@tausq.org>:
> > >So I think it would be nice to put this patch into CVS.
> > >
> > I hope also it will be ci but I could not help.
>=20
> it's in 2.4.20-pa35 now.
>=20
> Joel, do you think you can come up with a version that applies to 2.5 as
> well?

Thanks. This reminds me that I'd still *love* to see the CVS repository
rsync'able. That'd really help me. However, it's at least nice to be
basically able to rsync the checked-out source trees.

Any chances for a rsync for the CVS repo?

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
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k!
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From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.5 bame
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On Tue, 2003-05-06 03:23:35 -0600, Paul Bame <bame@dsl2.external.hp.com>
wrote in message <20030506092335.CA5344829@dsl2.external.hp.com>:
> CVSROOT:	/var/cvs
> Module name:	linux-2.5
  ^^^^^^^^^^^^^^^^^^^^^^^

Just a small hint - could anybody please update the web pages on p-l to
actually name this module? I haven't seen it and to test 2.5.x on parisc
(first on b132l, then on 712) I first tried to find a branch on the
"linux" module, remembering that I've seen 2.5.x check-ins. I now got
the module name off this email.

MfG, JBG
PS: Rsyncable CVS repository would be nice:)

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux-2.5 bame
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> PS: Rsyncable CVS repository would be nice:)

Out of curiosity -- why do you want a rsync'able cvs? if you are not
going to work directly from the master repository, we already produce
daily cvs diffs that are on the ftp.p-l.org site. if you need
up-to-the-minute updates, then why not directly use cvs? cvs.p-l.org
seems to have decent bandwidth to various places...

randolph
--=20
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux-2.5 bame
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On Thu, May 08, 2003 at 12:02:49AM +0200, Jan-Benedict Glaw wrote:
> Just a small hint - could anybody please update the web pages on p-l to
> actually name this module?

Which web page did you think should (but didn't) mention linux-2.5?

See http://cvs.parisc-linux.org/ for a complete list of repositories.

I'll take patches for the CVS "web" repository.

BTW, some are obsolete. I know linux, linux-2.5, palo, web, and build-tools
are "live" (most current versions). I don't know about the others.

grant


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From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
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Subject: [parisc-linux] [PATCH-build-tools] Generate linux-2.5 tarball
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Hi!

Playing with 2.5.x, I think we'd also push out a 2.5.x snapshot. Here's
the patch:


Index: mk.cvs.tarballs
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/build-tools/mk.cvs.tarballs,v
retrieving revision 1.6
diff -u -r1.6 mk.cvs.tarballs
--- mk.cvs.tarballs	24 Oct 2001 20:27:19 -0000	1.6
+++ mk.cvs.tarballs	8 May 2003 05:38:21 -0000
@@ -7,7 +7,7 @@
=20
 ################### Lots of stuff you may want to customize here ######
 # List of stuff in CVS to package
-PACKAGES=3D'linux palo gcc gdb'
+PACKAGES=3D'linux linux-2.5 palo gcc gdb'
=20
 # Number of older tarballs to keep around
 KEEP=3D3


MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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Hi!

With OProfile <m>odularized, this patch is needed to build it:


Index: arch/parisc/oprofile/init.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/arch/parisc/oprofile/init.c,v
retrieving revision 1.4
diff -u -r1.4 init.c
--- arch/parisc/oprofile/init.c	5 May 2003 17:05:49 -0000	1.4
+++ arch/parisc/oprofile/init.c	8 May 2003 05:43:41 -0000
@@ -10,6 +10,7 @@
 #include <linux/kernel.h>
 #include <linux/oprofile.h>
 #include <linux/init.h>
+#include <linux/errno.h>
 =20
 extern void timer_init(struct oprofile_operations ** ops);
=20


MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: Re: [parisc-linux] Oops on 2.4.20-pa33
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>> >So I think it would be nice to put this patch into CVS.
>> >
>> I hope also it will be ci but I could not help.
>
>it's in 2.4.20-pa35 now.
>
>Joel, do you think you can come up with a version that applies to 2.5 as
>well?
>
Well, I have not yet have time to look into 2.5 but I can try to do my best.
Just be patient: i lost my test server and I have to make place elsewhere.

Regards,
    Joel

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Subject: [parisc-linux] [Q] "-p" level for submitting patches?
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Hi!

I've co'ed the full CVS repository (ie all modules are within one
direcory). To ease applying patches for you, from which directory should
I 'cvs diff' changed files?

[ ]	$ ls
	CVS         CVSROOT    build-tools  gcc      gdb        glibc linux
	linux-2.5   obsolete   palo         pmccabe  userspace  web
	$ cvs diff linux-2.5/arch/parisc/...

[ ]     $ ls
	COPYING        Makefile        crypto   ipc     scripts
	CREDITS        README          drivers  kernel  security
	CVS            REPORTING-BUGS  fs       lib     sound
	Documentation  System.map      include  mm      usr
	MAINTAINERS    arch            init     net     vmlinux
	$ cvs diff arch/parisc/linux/....

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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>>
>> You don't have permission to access /archive/scripts/isobuild.sh on 
>> this
>> server.
>corrected

Thanks,

>> PS: Would it not be put also into build-tools cvs tree?
>i don't think so.

Ok

>it's not useable per se, and I think you'll have trouble with it.
>it's just published to give an idea what has to be done to build an ISO.

That is all I expect :)

Thanks for help,
  Joel


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On Tue, 2003-05-06 19:56:48 +0200, Joel Soete <jsoe0708@tiscali.be>
wrote in message <3EB7766A000003EE@ocpmta7.freegates.net>:
> So it will finaly become:
> diff -NaurX dontdiff linux-2.4.20-pa33/arch/parisc/kernel/signal.c linux-=
2.4.20-pa33-gcc33/arch/parisc/kernel/signal.c
> --- linux-2.4.20-pa33/arch/parisc/kernel/signal.c	2003-05-06 17:47:32.000=
000000
> +0200
> +++ linux-2.4.20-pa33-gcc33/arch/parisc/kernel/signal.c	2003-05-06 18:09:=
35.000000000
> +0200
[...]

This is the 2.5.x version. It's _only_ the sa_handler caste, not
including the additional compiler fixes you suggested.


Index: drivers/char/n_tty.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/drivers/char/n_tty.c,v
retrieving revision 1.8
diff -u -r1.8 n_tty.c
--- drivers/char/n_tty.c	5 May 2003 17:06:33 -0000	1.8
+++ drivers/char/n_tty.c	8 May 2003 06:08:38 -0000
@@ -808,7 +808,8 @@
 int is_ignored(int sig)
 {
 	return (sigismember(&current->blocked, sig) ||
-	        current->sighand->action[sig-1].sa.sa_handler =3D=3D SIG_IGN);
+	        current->sighand->action[sig-1].sa.sa_handler
+				=3D=3D (void *)SIG_IGN);
 }
=20
 static void n_tty_set_termios(struct tty_struct *tty, struct termios * old)
Index: fs/ncpfs/sock.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/fs/ncpfs/sock.c,v
retrieving revision 1.6
diff -u -r1.6 sock.c
--- fs/ncpfs/sock.c	15 Feb 2003 03:48:26 -0000	1.6
+++ fs/ncpfs/sock.c	8 May 2003 06:08:39 -0000
@@ -757,9 +757,9 @@
 			   What if we've blocked it ourselves?  What about
 			   alarms?  Why, in fact, are we mucking with the
 			   sigmask at all? -- r~ */
-			if (current->sighand->action[SIGINT - 1].sa.sa_handler =3D=3D SIG_DFL)
+			if (current->sighand->action[SIGINT - 1].sa.sa_handler =3D=3D (void *)S=
IG_DFL)
 				mask |=3D sigmask(SIGINT);
-			if (current->sighand->action[SIGQUIT - 1].sa.sa_handler =3D=3D SIG_DFL)
+			if (current->sighand->action[SIGQUIT - 1].sa.sa_handler =3D=3D (void *)=
SIG_DFL)
 				mask |=3D sigmask(SIGQUIT);
 		}
 		siginitsetinv(&current->blocked, mask);
Index: fs/proc/array.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/fs/proc/array.c,v
retrieving revision 1.15
diff -u -r1.15 array.c
--- fs/proc/array.c	5 May 2003 17:08:54 -0000	1.15
+++ fs/proc/array.c	8 May 2003 06:08:40 -0000
@@ -213,9 +213,9 @@
=20
 	k =3D p->sighand->action;
 	for (i =3D 1; i <=3D _NSIG; ++i, ++k) {
-		if (k->sa.sa_handler =3D=3D SIG_IGN)
+		if (k->sa.sa_handler =3D=3D (void *)SIG_IGN)
 			sigaddset(ign, i);
-		else if (k->sa.sa_handler !=3D SIG_DFL)
+		else if (k->sa.sa_handler !=3D (void *)SIG_DFL)
 			sigaddset(catch, i);
 	}
 }
Index: kernel/signal.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/kernel/signal.c,v
retrieving revision 1.19
diff -u -r1.19 signal.c
--- kernel/signal.c	24 Apr 2003 01:38:05 -0000	1.19
+++ kernel/signal.c	8 May 2003 06:08:42 -0000
@@ -144,12 +144,12 @@
 		(((sig) < SIGRTMIN)  && T(sig, SIG_KERNEL_STOP_MASK))
=20
 #define sig_user_defined(t, signr) \
-	(((t)->sighand->action[(signr)-1].sa.sa_handler !=3D SIG_DFL) &&	\
-	 ((t)->sighand->action[(signr)-1].sa.sa_handler !=3D SIG_IGN))
+	(((t)->sighand->action[(signr)-1].sa.sa_handler !=3D (void *)SIG_DFL) &&	\
+	 ((t)->sighand->action[(signr)-1].sa.sa_handler !=3D (void *)SIG_IGN))
=20
 #define sig_fatal(t, signr) \
 	(!T(signr, SIG_KERNEL_IGNORE_MASK|SIG_KERNEL_STOP_MASK) && \
-	 (t)->sighand->action[(signr)-1].sa.sa_handler =3D=3D SIG_DFL)
+	 (t)->sighand->action[(signr)-1].sa.sa_handler =3D=3D (void *)SIG_DFL)
=20
 static inline int sig_ignored(struct task_struct *t, int sig)
 {
@@ -171,8 +171,8 @@
=20
 	/* Is it explicitly or implicitly ignored? */
 	handler =3D t->sighand->action[sig-1].sa.sa_handler;
-	return   handler =3D=3D SIG_IGN ||
-		(handler =3D=3D SIG_DFL && sig_kernel_ignore(sig));
+	return   handler =3D=3D (void *)SIG_IGN ||
+		(handler =3D=3D (void *)SIG_DFL && sig_kernel_ignore(sig));
 }
=20
 /*
@@ -366,7 +366,7 @@
 	int i;
 	struct k_sigaction *ka =3D &t->sighand->action[0];
 	for (i =3D _NSIG ; i !=3D 0 ; i--) {
-		if (force_default || ka->sa.sa_handler !=3D SIG_IGN)
+		if (force_default || ka->sa.sa_handler !=3D (void *)SIG_IGN)
 			ka->sa.sa_handler =3D SIG_DFL;
 		ka->sa.sa_flags =3D 0;
 		sigemptyset(&ka->sa.sa_mask);
@@ -801,7 +801,7 @@
 	int ret;
=20
 	spin_lock_irqsave(&t->sighand->siglock, flags);
-	if (t->sighand->action[sig-1].sa.sa_handler =3D=3D SIG_IGN)
+	if (t->sighand->action[sig-1].sa.sa_handler =3D=3D (void *)SIG_IGN)
 		t->sighand->action[sig-1].sa.sa_handler =3D SIG_DFL;
 	sigdelset(&t->blocked, sig);
 	recalc_sigpending_tsk(t);
@@ -817,7 +817,7 @@
 	unsigned long int flags;
=20
 	spin_lock_irqsave(&t->sighand->siglock, flags);
-	if (t->sighand->action[sig-1].sa.sa_handler =3D=3D SIG_IGN)
+	if (t->sighand->action[sig-1].sa.sa_handler =3D=3D (void *)SIG_IGN)
 		t->sighand->action[sig-1].sa.sa_handler =3D SIG_DFL;
 	sigdelset(&t->blocked, sig);
 	recalc_sigpending_tsk(t);
@@ -1281,7 +1281,7 @@
 	psig =3D tsk->parent->sighand;
 	spin_lock_irqsave(&psig->siglock, flags);
 	if (sig =3D=3D SIGCHLD && tsk->state !=3D TASK_STOPPED &&
-	    (psig->action[SIGCHLD-1].sa.sa_handler =3D=3D SIG_IGN ||
+	    (psig->action[SIGCHLD-1].sa.sa_handler =3D=3D (void *)SIG_IGN ||
 	     (psig->action[SIGCHLD-1].sa.sa_flags & SA_NOCLDWAIT))) {
 		/*
 		 * We are exiting and our parent doesn't care.  POSIX.1
@@ -1299,7 +1299,7 @@
 		 * it, just use SIG_IGN instead).
 		 */
 		tsk->exit_signal =3D -1;
-		if (psig->action[SIGCHLD-1].sa.sa_handler =3D=3D SIG_IGN)
+		if (psig->action[SIGCHLD-1].sa.sa_handler =3D=3D (void *)SIG_IGN)
 			sig =3D 0;
 	}
 	if (sig > 0 && sig <=3D _NSIG)
@@ -1347,7 +1347,7 @@
=20
 	sighand =3D parent->sighand;
 	spin_lock_irqsave(&sighand->siglock, flags);
-	if (sighand->action[SIGCHLD-1].sa.sa_handler !=3D SIG_IGN &&
+	if (sighand->action[SIGCHLD-1].sa.sa_handler !=3D (void *)SIG_IGN &&
 	    !(sighand->action[SIGCHLD-1].sa.sa_flags & SA_NOCLDSTOP))
 		__group_send_sig_info(SIGCHLD, &info, parent);
 	/*
@@ -1581,9 +1581,9 @@
 		}
=20
 		ka =3D &current->sighand->action[signr-1];
-		if (ka->sa.sa_handler =3D=3D SIG_IGN) /* Do nothing.  */
+		if (ka->sa.sa_handler =3D=3D (void *)SIG_IGN) /* Do nothing.  */
 			continue;
-		if (ka->sa.sa_handler !=3D SIG_DFL) /* Run the handler.  */
+		if (ka->sa.sa_handler !=3D (void *)SIG_DFL) /* Run the handler.  */
 			return signr;
=20
 		/*
@@ -2034,8 +2034,8 @@
 		 *   (for example, SIGCHLD), shall cause the pending signal to
 		 *   be discarded, whether or not it is blocked"
 		 */
-		if (act->sa.sa_handler =3D=3D SIG_IGN ||
-		    (act->sa.sa_handler =3D=3D SIG_DFL &&
+		if (act->sa.sa_handler =3D=3D (void *)SIG_IGN ||
+		    (act->sa.sa_handler =3D=3D (void *)SIG_DFL &&
 		     sig_kernel_ignore(sig))) {
 			/*
 			 * This is a fairly rare case, so we only take the
Index: net/sunrpc/clnt.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/net/sunrpc/clnt.c,v
retrieving revision 1.12
diff -u -r1.12 clnt.c
--- net/sunrpc/clnt.c	8 Apr 2003 15:21:04 -0000	1.12
+++ net/sunrpc/clnt.c	8 May 2003 06:08:44 -0000
@@ -255,9 +255,9 @@
 	/* Turn off various signals */
 	if (clnt->cl_intr) {
 		struct k_sigaction *action =3D current->sighand->action;
-		if (action[SIGINT-1].sa.sa_handler =3D=3D SIG_DFL)
+		if (action[SIGINT-1].sa.sa_handler =3D=3D (void *)SIG_DFL)
 			sigallow |=3D sigmask(SIGINT);
-		if (action[SIGQUIT-1].sa.sa_handler =3D=3D SIG_DFL)
+		if (action[SIGQUIT-1].sa.sa_handler =3D=3D (void *)SIG_DFL)
 			sigallow |=3D sigmask(SIGQUIT);
 	}
 	spin_lock_irqsave(&current->sighand->siglock, irqflags);



MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

--FC8SlEHQ+Zonp6pC
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Subject: Re: [parisc-linux] [PATCH-linux-2.5] Add missing include to OProfile
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On Thu, May 08, 2003 at 07:46:09AM +0200, Jan-Benedict Glaw wrote:
> Hi!
> 
> With OProfile <m>odularized, this patch is needed to build it:

Thanks; I noticed it myself earlier this morning.  Committed.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] [PATCH-build-tools] Generate linux-2.5 tarball
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On Thu, May 08, 2003 at 07:41:18AM +0200, Jan-Benedict Glaw wrote:
> Hi!
> 
> Playing with 2.5.x, I think we'd also push out a 2.5.x snapshot. Here's
> the patch:

We do push out a snapshot, it's just in a different place:

http://ftp.parisc-linux.org/2.5/kernel-src/

I'm not sure why Paul chose to do it this way.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Thu, 2003-05-08 14:34:13 +0100, Matthew Wilcox <willy@debian.org>
wrote in message <20030508133413.GH29534@parcelfarce.linux.theplanet.co.uk>:
> On Thu, May 08, 2003 at 07:41:18AM +0200, Jan-Benedict Glaw wrote:
> > Hi!
> >=20
> > Playing with 2.5.x, I think we'd also push out a 2.5.x snapshot. Here's
> > the patch:
>=20
> We do push out a snapshot, it's just in a different place:
>=20
> http://ftp.parisc-linux.org/2.5/kernel-src/
>=20
> I'm not sure why Paul chose to do it this way.

Argh:) Let's keep them together, please...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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> I've co'ed the full CVS repository (ie all modules are within one
> direcory). To ease applying patches for you, from which directory should

either is fine, as long as it's obvious which module you are diffing
=66rom :)

randolph
--=20
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

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Jan-Benedict Glaw said:
> Thanks. This reminds me that I'd still *love* to see the CVS repository
> rsync'able. That'd really help me. However, it's at least nice to be
> basically able to rsync the checked-out source trees.
> 
> Any chances for a rsync for the CVS repo?
> 
> MfG, JBG

I'm not sure why you'd want to be able to rsync the entire repository,
unless you want to be able to track multiple branches of a module
without having to have a full checkout of each one?  That would make
more sense I guess, if you live in a world where the Internet is slow
and bandwidth is not free (I live there too, small world!).

There is already an rsync server running on ftp.parisc-linux.org, but I
don't believe it's widely advertised.

I just ran an 'rsync -va ftp.parisc-linux.org.au::pub' (the only rsync
'module' available) and the output was 14M!  Presumably this caused a
fair bit of thrashing at f.p-l.o's end as well ...

If you'd like to see what's available by rsync, I've compressed that
listing and uploaded it here.

ftp://ftp.neep.com.au/pub/parisc-linux/ftp.parisc-linux.org-rsync.txt.bz2

I'll have a trundle through it myself today, to see if I can write a
helpful motd for rsyncd and suggest how the ::pub module can be split up
into more useful bits.  (Bame, may I assume that you're still nominally
in charge of the rsyncd server?)

Andrew.

-- 
Andrew Shugg <andrew@neep.com.au>                   http://www.neep.com.au/

"Just remember, Mr Fawlty, there's always someone worse off than yourself."
"Is there?  Well I'd like to meet him.  I could do with a good laugh."


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Hi All,

I'm currently trying to convert an old HP 9000/861/D270 to a firewall. So far, 
It works fine (after lowering the NCR_700_MAX_TAGS in drivers/scsi/53c700.h 
to 4, without that change the SCSI bus hung when writing large amounts of 
data).

The only real problem I have right now is that I get a kernel panic when 
loading my 3c59x driver module, because "ASSERT(dev);" fails in function 
ccio_map_single in file arch/parisc/kernel/ccio-dma.c.

I haven't found anything on the list so far, so maybe this is a new problem.
(Are EISA devices treated as PCI devices? Otherwise it might be ok for dev
to be NULL...)

Versions:
    Linux hppa 2.4.20-pa33 #2 Wed May 7 19:41:42 CEST 2003 parisc
    gcc version 3.0.4
    GNU ld version 2.12.90.0.1 20020307 Debian/GNU Linux

config, System.map and dmesg.log are available from 
http://134.155.63.117/~skettler/parisc-linux/

Thanks in advance,

Sascha Kettler



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On Fri, May 09, 2003 at 01:40:20PM +0000, parisc-linux@helplets.com wrote:
> (Are EISA devices treated as PCI devices? Otherwise it might be ok for dev
> to be NULL...)

Yes. But there needs to be a fake pci_dev so the ccio mapping services
can find it's IOMMU data structures. Either Ryan Bradetich or James
Bottomley might know off hand what the problem is for EISA. This
is not a new problem.

grant


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Subject: [parisc-linux] OT:Anyone have an FX card they would want to trade for a PCI EG card?
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Sorry for the OT, but does anyone have an FX series card that they would be willing to part with in trade for a PCI EG card?  I know the FX cards don't work in Linux, but I need it for my HPUX box.  The EG card is supported under Debian.  I would prefer to have another FX4 like I have now, but any FX card would do.  Thanks. derej

---------------------------------
Do you Yahoo!?
The New Yahoo! Search - Faster. Easier. Bingo.
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<DIV>Sorry for the OT, but does anyone have an FX series card that they would be willing to part with in trade for a PCI EG card?&nbsp; I know the FX cards don't work in Linux, but I need it for my HPUX box.&nbsp; The EG card is supported under Debian.&nbsp; I would prefer to have another FX4 like I have now, but any FX card would do.&nbsp; Thanks.</DIV>
<DIV>&nbsp;</DIV>
<DIV>derej</DIV><p><hr SIZE=1>
Do you Yahoo!?<br>
<a href="http://us.rd.yahoo.com/search/mailsig/*http://search.yahoo.com">The New Yahoo! Search</a> - Faster. Easier. Bingo.
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On Fri, 2003-05-09 10:37:47 +0800, Andrew Shugg <andrew@neep.com.au>
wrote in message <20030509103745.H20047@neep.com.au>:
> Jan-Benedict Glaw said:
> > Thanks. This reminds me that I'd still *love* to see the CVS repository
> > rsync'able. That'd really help me. However, it's at least nice to be
> > basically able to rsync the checked-out source trees.
> >=20
> > Any chances for a rsync for the CVS repo?
> >=20
> > MfG, JBG
>=20
> I'm not sure why you'd want to be able to rsync the entire repository,
> unless you want to be able to track multiple branches of a module
> without having to have a full checkout of each one?  That would make
> more sense I guess, if you live in a world where the Internet is slow
> and bandwidth is not free (I live there too, small world!).

It's even good for looking at older revisions of files without being
online.

> There is already an rsync server running on ftp.parisc-linux.org, but I
> don't believe it's widely advertised.

I do already use it.

> I'll have a trundle through it myself today, to see if I can write a
> helpful motd for rsyncd and suggest how the ::pub module can be split up
> into more useful bits.  (Bame, may I assume that you're still nominally
> in charge of the rsyncd server?)

The "pub" module is nice as it is just right now, but I'd love to see
the CVS repository directory (/var/cvs ?) also there:)

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
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Subject: [parisc-linux] Stale CVS lock by bame?
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Hi *!

[...]
cvs server: [16:02:29] waiting for bame's lock in /var/cvs/obsolete/binutil=
s-2.10
cvs server: [16:02:59] waiting for bame's lock in /var/cvs/obsolete/binutil=
s-2.10
cvs server: [16:03:29] waiting for bame's lock in /var/cvs/obsolete/binutil=
s-2.10
cvs server: [16:03:59] waiting for bame's lock in /var/cvs/obsolete/binutil=
s-2.10
cvs server: [16:04:29] waiting for bame's lock in /var/cvs/obsolete/binutil=
s-2.10
cvs server: [16:04:59] waiting for bame's lock in /var/cvs/obsolete/binutil=
s-2.10

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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Linux k2000 2.4.20-pa32 #1 Sat May 10 00:07:09
Latest gcc
This is a 785/j5000

This is the error we get when trying to compile the SMP kernel





sched.c:93: initializer element is not constant
sched.c:93: (near initialization for `tasklist_lock')
sched.c:93: initializer element is not constant
make[2]: *** [sched.o] Error 1
make[2]: Leaving directory `/usr/src/linux-2.4.20-pa33/kernel'
make[1]: *** [first_rule] Error 2
make[1]: Leaving directory `/usr/src/linux-2.4.20-pa33/kernel'
make: *** [_dir_kernel] Error 2



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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] SMP on J5000
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On Fri, May 09, 2003 at 10:16:21PM -0400, Richard Todd wrote:
> Linux k2000 2.4.20-pa32 #1 Sat May 10 00:07:09
> Latest gcc

"gcc -v" output please

> This is a 785/j5000
> 
> This is the error we get when trying to compile the SMP kernel
> sched.c:93: initializer element is not constant

grundler@gsyprf11:/usr/src/2.4.20-SMP$ ls -l kernel/sched*
-rw-r--r--    1 grundler users       32779 Nov 13 21:13 kernel/sched.c
-rw-r--r--    1 grundler users      173096 May  9 23:41 kernel/sched.o

Using "gcc version 3.2.3 20030316".
My tree isn't totally clean but I don't think any changes I have
interact with sched.c.

Can you verify your source tree is not corrupted?

If you haven't done so already, please save your .config,
"make distclean" and start over.

grant


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From: Joel Soete <joel.soete@tiscali.be>
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Subject: [parisc-linux] Yet another '__canonicalize_funcptr_for_compare' pb
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Xref: news.gmane.org gmane.linux.ports.parisc:18435

Hi Dave,

Atfer I reach to recover some kind of b2k test system I reach to grab 
2.4.21-rc2-pa35 and try to compile it with gcc-3.2 (debian 3.2.3-2 iirc)

The kernel seems to compiles well without err but it failled to build 
some module again because of '__canonicalize_funcptr_for_compare' needed 
in tun.o under drivers/net.

I read first the pre-asm code to try to locate pb and figure out that it 
was in tun_set_iff() near begining:
tun.c
...
static int tun_set_iff(struct file *file, struct ifreq *ifr)
{
        struct tun_struct *tun;
        struct net_device *dev;
        int err;

        dev = __dev_get_by_name(ifr->ifr_name);
        if (dev) {
                /* Device exist */
                tun = dev->priv;

                if (dev->init != tun_net_init || tun->attached)
                        return -EBUSY;

                /* Check permissions */
...

I suspect first if(dev) because dev is a pointer to a struct but finaly 
it is in "if (dev->init != tun_net_init..." which would become "if 
(dev->init != (void*)tun_net_init...".

Is it the right workaround? fixe?

I have another stupid question: as hppa seems to be the only platform 
requiring this stuff and I don't see how to check all src to track this 
pb (practicaly only try and chess?), how much would it be difficult to 
implement this __canonicalize_funcptr_for_compare into the hppa lib kernel?

Thanks in advance for advise,
    Joel



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Subject: Re: [parisc-linux] Yet another '__canonicalize_funcptr_for_compare' pb
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On Sat, 2003-05-10 20:31:33 +0000, Joel Soete <joel.soete@tiscali.be>
wrote in message <3EBD61A5.8030205@tiscali.be>:
>=20
> The kernel seems to compiles well without err but it failled to build=20
> some module again because of '__canonicalize_funcptr_for_compare' needed=
=20
> in tun.o under drivers/net.

This leads me to ask: How do I localize wrong pointer compares?
Compiling 2.5.x with mostly everything compiled as module unhides quite
some modules with suffer from this problem. So is there any simple way
finding out at which address a call to
__canonicalize_funcptr_for_compare happens so that I can localize the
code line?

MfG, JBG

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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] Yet another '__canonicalize_funcptr_for_compare' pb
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On Sat, May 10, 2003 at 08:31:33PM +0000, Joel Soete wrote:
> I have another stupid question: as hppa seems to be the only platform 
> requiring this stuff

ia64 and a few others have similar 64-bit function pointers.
This issue has resurfaced on parisc-linux and ia64-linux mailing
list regularly.  (2 or 3 times per year).

grant


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From: Joel Soete <joel.soete@tiscali.be>
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Subject: Re: [parisc-linux] Yet another '__canonicalize_funcptr_for_compare'
 pb
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Grant Grundler wrote:

>On Sat, May 10, 2003 at 08:31:33PM +0000, Joel Soete wrote:
>  
>
>>I have another stupid question: as hppa seems to be the only platform 
>>requiring this stuff
>>    
>>
>
>ia64 and a few others have similar 64-bit function pointers.
>
Sorry I forget to mentioned that I compiling a 32-bits hppa kernel. Does 
it make diffrence?

Joel



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>         dev = __dev_get_by_name(ifr->ifr_name);
>         if (dev) {
>                 /* Device exist */
>                 tun = dev->priv;
> 
>                 if (dev->init != tun_net_init || tun->attached)
>                         return -EBUSY;
> 
>                 /* Check permissions */
> ...
> 
> I suspect first if(dev) because dev is a pointer to a struct but finaly 
> it is in "if (dev->init != tun_net_init..." which would become "if 
> (dev->init != (void*)tun_net_init...".

__canonicalize_funcptr_for_compare is only used in comparisons involving
function pointers.

> Is it the right workaround? fixe?

Probably.  There are some tricky issues with respect to loadable
kernel modules.

> I have another stupid question: as hppa seems to be the only platform 
> requiring this stuff and I don't see how to check all src to track this 
> pb (practicaly only try and chess?), how much would it be difficult to 
> implement this __canonicalize_funcptr_for_compare into the hppa lib kernel?

You can tell if a kernel or module uses __canonicalize_funcptr_for_compare
with nm.  If you find it's used somewhere, check each object module for
it.  You can find the code location of it with "objdump -d".  This will
give a pretty good idea where in the source the comparison occurs.

As to a kernel implementation, this is hard.  If the function pointer
is in user space, canonicalization requires a bunch of tests and then
a call to code in the dynamic loader in the user program.

As far as function pointers in the kernel address space, this would
take some research.  Direct comparison (i.e., using "void *" casts)
will work ok as long as the pointer either points directly to the
kernel function involved or unique plabels are used.  If all
kernel function addresses get bound immediately when a module
is loaded, this would simplify the situation and the canonicalization
could be done simply by looking at the function address in the plabel.
The exact details depend on how the kernel and modules are linked.

The reason why function pointer canonicalization is needed on the
pa is that there can be several plabels pointing to the same function
a user program.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> On Sat, May 10, 2003 at 08:31:33PM +0000, Joel Soete wrote:
> > I have another stupid question: as hppa seems to be the only platform 
> > requiring this stuff
> 
> ia64 and a few others have similar 64-bit function pointers.
> This issue has resurfaced on parisc-linux and ia64-linux mailing
> list regularly.  (2 or 3 times per year).

The ia64 situation differs from the parisc situation in that all
calls are made using function descriptors and the descriptors are
unique.  As a result, it is sufficient to simply compare the function
pointers.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> Sorry I forget to mentioned that I compiling a 32-bits hppa kernel. Does 
> it make diffrence?

Yes.  Function pointer canonicalization is only done on the 32-bit
port.  This is not to say that there aren't issues with 64-bit kernels
in this area, particularly if you use loadable modules.  The 64-bit
code assumes that there is an official procedure descriptor (OPD)
for each function.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Alan Cox wrote:

>On Mer, 2003-04-30 at 07:12, Joel Soete wrote:
>  
>
>>>I would like to thanks you again for your help and all those who help me
>>>to build this stuff.
>>>      
>>>
>
>I typed wget, more and patch. The work was all done by people making it
>easy to merge
>
>
>  
>
Hi Alan,

I just grab 2.4.21-rc2 but do not find references to this stuff. As I 
have no experience in this kind of submit, does it means that is 
definitively rejected?

Thanks,
    Joel



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Bruno Vidal wrote:

>     Hi
> For people who are intersting to it, the dump modules
> is now checking that it is a swap device before
> configuring it. So it remove the risk to dump
> to a file system. It check for the swap magic
> "SWAP-SPACE" (v0) or "SWAPSPACE2" (v1). The
> partition is not necessary an active one,
> it should only be created by mkswap (so no
> file system on it).
>
>     Cheers.
>
Hi Bruno,

I just recover my b2k test system (even I quiet sure to find from place 
to place some files corrupted by its crash) and I would so now find some 
free time to test your last patch if you would still submit it to me.

Regards,
    Joel




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Its in the 2.4.21rc2-ac tree. I've sent most of it to Marcelo on the
grounds that it is zero risk even in a -rc because parisc doesnt work
in his tree anyway. He may ask me to wait for 2.4.22pre1 though




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Hi!

This patch does:

 - Add various void * casts to pointer compares (to solve the
   __canonicalize_funcptr_for_compare missing symbol when built as
   module because libgcc.a isn't linked into these modules)

 - Ressurect CONFIG_BINFM_SOM when built as module: the hpux/ directory
   was completely missing (this part needs cleanup from a Makefile
   specialist), EXPORT_SYMBOL() the hpux_gateway_page if neccessary.

 - Export some more symbols (memchr, pdc_tod_read, pdc_tod_set,
   __flush_dcache_page, dcache_stride) to make various modules happy.


Please look at the first chunk - I don't know how to code this...

MfG, JBG


Index: arch/parisc/Makefile
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/arch/parisc/Makefile,v
retrieving revision 1.25
diff -u -r1.25 Makefile
--- arch/parisc/Makefile	28 Mar 2003 16:52:18 -0000	1.25
+++ arch/parisc/Makefile	11 May 2003 13:09:16 -0000
@@ -58,7 +58,12 @@
 CFLAGS	+=3D $(cflags-y)
=20
 kernel-y			:=3D mm/ kernel/ math-emu/ kernel/init_task.o
-kernel-$(CONFIG_BINFMT_SOM)	+=3D hpux/
+ifdef CONFIG_BINFMT_SOM
+kernel-y	+=3D hpux/
+endif
+ifdef CONFIG_BINFMT_SOM_MODULE
+kernel-y	+=3D hpux/
+endif
=20
 core-y	+=3D $(addprefix arch/parisc/, $(kernel-y))
 libs-y	+=3D arch/parisc/lib/ `$(CC) -print-libgcc-file-name`
Index: arch/parisc/kernel/parisc_ksyms.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/parisc_ksyms.c,v
retrieving revision 1.16
diff -u -r1.16 parisc_ksyms.c
--- arch/parisc/kernel/parisc_ksyms.c	10 Apr 2003 04:45:31 -0000	1.16
+++ arch/parisc/kernel/parisc_ksyms.c	11 May 2003 13:09:16 -0000
@@ -11,6 +11,7 @@
 EXPORT_SYMBOL_NOVERS(memset);
 EXPORT_SYMBOL(memcmp);
 EXPORT_SYMBOL_NOVERS(memcpy);
+EXPORT_SYMBOL(memchr);
 EXPORT_SYMBOL(memmove);
 EXPORT_SYMBOL(strcat);
 EXPORT_SYMBOL(strchr);
@@ -39,7 +40,7 @@
 #include <asm/processor.h>
 EXPORT_SYMBOL(kernel_thread);
 EXPORT_SYMBOL(boot_cpu_data);
-#ifdef CONFIG_BINFMT_SOM
+#ifdef CONFIG_BINFMT_SOM_MODULE
 EXPORT_SYMBOL(map_hpux_gateway_page);
 #endif
 #ifdef CONFIG_EISA
@@ -80,6 +81,8 @@
 EXPORT_SYMBOL(register_parisc_driver);
 EXPORT_SYMBOL(unregister_parisc_driver);
 EXPORT_SYMBOL(pdc_iodc_read);
+EXPORT_SYMBOL(pdc_tod_read);
+EXPORT_SYMBOL(pdc_tod_set);
=20
 #include <asm/io.h>
 EXPORT_SYMBOL(__ioremap);
@@ -107,7 +110,9 @@
 #include <asm/cache.h>
 EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
 EXPORT_SYMBOL(flush_kernel_dcache_page);
+EXPORT_SYMBOL(__flush_dcache_page);
 EXPORT_SYMBOL(flush_all_caches);
+EXPORT_SYMBOL(dcache_stride);
=20
 #include <asm/unistd.h>
 extern long sys_open(const char *, int, int);
Index: arch/parisc/mm/init.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/arch/parisc/mm/init.c,v
retrieving revision 1.14
diff -u -r1.14 init.c
--- arch/parisc/mm/init.c	5 May 2003 17:05:49 -0000	1.14
+++ arch/parisc/mm/init.c	11 May 2003 13:09:18 -0000
@@ -666,7 +666,7 @@
 		PAGE_SIZE, PAGE_GATEWAY);
 }
=20
-#ifdef CONFIG_BINFMT_SOM
+#if defined(CONFIG_BINFMT_SOM) || defined(CONFIG_BINFMT_SOM_MODULE)
 void
 map_hpux_gateway_page(struct task_struct *tsk, struct mm_struct *mm)
 {
@@ -735,7 +735,7 @@
 	pg_table =3D (pte_t *) __va(pg_table) + start_pte;
 	set_pte(pg_table, __mk_pte(address, PAGE_GATEWAY));
 }
-#endif
+#endif /* CONFIG_BINFMT_SOM{,_MODULE} */
=20
 extern void flush_tlb_all_local(void);
=20
Index: arch/parisc/oprofile/init.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/arch/parisc/oprofile/init.c,v
retrieving revision 1.5
diff -u -r1.5 init.c
--- arch/parisc/oprofile/init.c	8 May 2003 13:31:44 -0000	1.5
+++ arch/parisc/oprofile/init.c	11 May 2003 13:09:18 -0000
@@ -11,6 +11,8 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/oprofile.h>
+#include <linux/init.h>
+#include <linux/errno.h>
=20
 extern void timer_init(struct oprofile_operations ** ops);
=20
Index: drivers/block/loop.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/drivers/block/loop.c,v
retrieving revision 1.17
diff -u -r1.17 loop.c
--- drivers/block/loop.c	5 May 2003 17:06:23 -0000	1.17
+++ drivers/block/loop.c	11 May 2003 13:09:24 -0000
@@ -368,7 +368,7 @@
 	/*
 	 * check bi_end_io, may just be a remapped bio
 	 */
-	if (bio && bio->bi_end_io =3D=3D loop_end_io_transfer) {
+	if (bio && bio->bi_end_io =3D=3D (void *)loop_end_io_transfer) {
 		int i;
=20
 		for (i =3D 0; i < bio->bi_vcnt; i++)
Index: drivers/char/n_tty.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/drivers/char/n_tty.c,v
retrieving revision 1.8
diff -u -r1.8 n_tty.c
--- drivers/char/n_tty.c	5 May 2003 17:06:33 -0000	1.8
+++ drivers/char/n_tty.c	11 May 2003 13:09:26 -0000
@@ -808,7 +808,8 @@
 int is_ignored(int sig)
 {
 	return (sigismember(&current->blocked, sig) ||
-	        current->sighand->action[sig-1].sa.sa_handler =3D=3D SIG_IGN);
+	        current->sighand->action[sig-1].sa.sa_handler
+				=3D=3D (void *)SIG_IGN);
 }
=20
 static void n_tty_set_termios(struct tty_struct *tty, struct termios * old)
Index: drivers/input/serio/hp_sdc.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/drivers/input/serio/hp_sdc.c,v
retrieving revision 1.2
diff -u -r1.2 hp_sdc.c
--- drivers/input/serio/hp_sdc.c	25 Dec 2002 00:39:09 -0000	1.2
+++ drivers/input/serio/hp_sdc.c	11 May 2003 13:09:29 -0000
@@ -669,7 +669,7 @@
=20
=20
 	write_lock_irq(&hp_sdc.hook_lock);
-	if ((callback !=3D hp_sdc.timer) ||
+	if (((void *)callback !=3D hp_sdc.timer) ||
 	    (hp_sdc.timer =3D=3D NULL)) {
 		write_unlock_irq(&hp_sdc.hook_lock);
 		return -EINVAL;
@@ -691,7 +691,7 @@
 int hp_sdc_release_hil_irq(hp_sdc_irqhook *callback) {
=20
 	write_lock_irq(&hp_sdc.hook_lock);
-	if ((callback !=3D hp_sdc.hil) ||
+	if (((void *)callback !=3D hp_sdc.hil) ||
 	    (hp_sdc.hil =3D=3D NULL)) {
 		write_unlock_irq(&hp_sdc.hook_lock);
 		return -EINVAL;
@@ -713,7 +713,7 @@
 int hp_sdc_release_cooked_irq(hp_sdc_irqhook *callback) {
=20
 	write_lock_irq(&hp_sdc.hook_lock);
-	if ((callback !=3D hp_sdc.cooked) ||
+	if (((void *)callback !=3D hp_sdc.cooked) ||
 	    (hp_sdc.cooked =3D=3D NULL)) {
 		write_unlock_irq(&hp_sdc.hook_lock);
 		return -EINVAL;
Index: drivers/net/tun.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/drivers/net/tun.c,v
retrieving revision 1.6
diff -u -r1.6 tun.c
--- drivers/net/tun.c	24 Apr 2003 01:36:14 -0000	1.6
+++ drivers/net/tun.c	11 May 2003 13:09:32 -0000
@@ -358,7 +358,7 @@
 		/* Device exist */
 		tun =3D dev->priv;
=20
-		if (dev->init !=3D tun_net_init || tun->attached)
+		if (dev->init !=3D (void *)tun_net_init || tun->attached)
 			return -EBUSY;
=20
 		/* Check permissions */
Index: fs/ncpfs/sock.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/fs/ncpfs/sock.c,v
retrieving revision 1.6
diff -u -r1.6 sock.c
--- fs/ncpfs/sock.c	15 Feb 2003 03:48:26 -0000	1.6
+++ fs/ncpfs/sock.c	11 May 2003 13:09:39 -0000
@@ -757,9 +757,9 @@
 			   What if we've blocked it ourselves?  What about
 			   alarms?  Why, in fact, are we mucking with the
 			   sigmask at all? -- r~ */
-			if (current->sighand->action[SIGINT - 1].sa.sa_handler =3D=3D SIG_DFL)
+			if (current->sighand->action[SIGINT - 1].sa.sa_handler =3D=3D (void *)S=
IG_DFL)
 				mask |=3D sigmask(SIGINT);
-			if (current->sighand->action[SIGQUIT - 1].sa.sa_handler =3D=3D SIG_DFL)
+			if (current->sighand->action[SIGQUIT - 1].sa.sa_handler =3D=3D (void *)=
SIG_DFL)
 				mask |=3D sigmask(SIGQUIT);
 		}
 		siginitsetinv(&current->blocked, mask);
Index: fs/proc/array.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/fs/proc/array.c,v
retrieving revision 1.15
diff -u -r1.15 array.c
--- fs/proc/array.c	5 May 2003 17:08:54 -0000	1.15
+++ fs/proc/array.c	11 May 2003 13:09:41 -0000
@@ -213,9 +213,9 @@
=20
 	k =3D p->sighand->action;
 	for (i =3D 1; i <=3D _NSIG; ++i, ++k) {
-		if (k->sa.sa_handler =3D=3D SIG_IGN)
+		if (k->sa.sa_handler =3D=3D (void *)SIG_IGN)
 			sigaddset(ign, i);
-		else if (k->sa.sa_handler !=3D SIG_DFL)
+		else if (k->sa.sa_handler !=3D (void *)SIG_DFL)
 			sigaddset(catch, i);
 	}
 }
Index: kernel/signal.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/kernel/signal.c,v
retrieving revision 1.19
diff -u -r1.19 signal.c
--- kernel/signal.c	24 Apr 2003 01:38:05 -0000	1.19
+++ kernel/signal.c	11 May 2003 13:09:55 -0000
@@ -144,12 +144,12 @@
 		(((sig) < SIGRTMIN)  && T(sig, SIG_KERNEL_STOP_MASK))
=20
 #define sig_user_defined(t, signr) \
-	(((t)->sighand->action[(signr)-1].sa.sa_handler !=3D SIG_DFL) &&	\
-	 ((t)->sighand->action[(signr)-1].sa.sa_handler !=3D SIG_IGN))
+	(((t)->sighand->action[(signr)-1].sa.sa_handler !=3D (void *)SIG_DFL) &&	\
+	 ((t)->sighand->action[(signr)-1].sa.sa_handler !=3D (void *)SIG_IGN))
=20
 #define sig_fatal(t, signr) \
 	(!T(signr, SIG_KERNEL_IGNORE_MASK|SIG_KERNEL_STOP_MASK) && \
-	 (t)->sighand->action[(signr)-1].sa.sa_handler =3D=3D SIG_DFL)
+	 (t)->sighand->action[(signr)-1].sa.sa_handler =3D=3D (void *)SIG_DFL)
=20
 static inline int sig_ignored(struct task_struct *t, int sig)
 {
@@ -171,8 +171,8 @@
=20
 	/* Is it explicitly or implicitly ignored? */
 	handler =3D t->sighand->action[sig-1].sa.sa_handler;
-	return   handler =3D=3D SIG_IGN ||
-		(handler =3D=3D SIG_DFL && sig_kernel_ignore(sig));
+	return   handler =3D=3D (void *)SIG_IGN ||
+		(handler =3D=3D (void *)SIG_DFL && sig_kernel_ignore(sig));
 }
=20
 /*
@@ -366,7 +366,7 @@
 	int i;
 	struct k_sigaction *ka =3D &t->sighand->action[0];
 	for (i =3D _NSIG ; i !=3D 0 ; i--) {
-		if (force_default || ka->sa.sa_handler !=3D SIG_IGN)
+		if (force_default || ka->sa.sa_handler !=3D (void *)SIG_IGN)
 			ka->sa.sa_handler =3D SIG_DFL;
 		ka->sa.sa_flags =3D 0;
 		sigemptyset(&ka->sa.sa_mask);
@@ -801,7 +801,7 @@
 	int ret;
=20
 	spin_lock_irqsave(&t->sighand->siglock, flags);
-	if (t->sighand->action[sig-1].sa.sa_handler =3D=3D SIG_IGN)
+	if (t->sighand->action[sig-1].sa.sa_handler =3D=3D (void *)SIG_IGN)
 		t->sighand->action[sig-1].sa.sa_handler =3D SIG_DFL;
 	sigdelset(&t->blocked, sig);
 	recalc_sigpending_tsk(t);
@@ -817,7 +817,7 @@
 	unsigned long int flags;
=20
 	spin_lock_irqsave(&t->sighand->siglock, flags);
-	if (t->sighand->action[sig-1].sa.sa_handler =3D=3D SIG_IGN)
+	if (t->sighand->action[sig-1].sa.sa_handler =3D=3D (void *)SIG_IGN)
 		t->sighand->action[sig-1].sa.sa_handler =3D SIG_DFL;
 	sigdelset(&t->blocked, sig);
 	recalc_sigpending_tsk(t);
@@ -1281,7 +1281,7 @@
 	psig =3D tsk->parent->sighand;
 	spin_lock_irqsave(&psig->siglock, flags);
 	if (sig =3D=3D SIGCHLD && tsk->state !=3D TASK_STOPPED &&
-	    (psig->action[SIGCHLD-1].sa.sa_handler =3D=3D SIG_IGN ||
+	    (psig->action[SIGCHLD-1].sa.sa_handler =3D=3D (void *)SIG_IGN ||
 	     (psig->action[SIGCHLD-1].sa.sa_flags & SA_NOCLDWAIT))) {
 		/*
 		 * We are exiting and our parent doesn't care.  POSIX.1
@@ -1299,7 +1299,7 @@
 		 * it, just use SIG_IGN instead).
 		 */
 		tsk->exit_signal =3D -1;
-		if (psig->action[SIGCHLD-1].sa.sa_handler =3D=3D SIG_IGN)
+		if (psig->action[SIGCHLD-1].sa.sa_handler =3D=3D (void *)SIG_IGN)
 			sig =3D 0;
 	}
 	if (sig > 0 && sig <=3D _NSIG)
@@ -1347,7 +1347,7 @@
=20
 	sighand =3D parent->sighand;
 	spin_lock_irqsave(&sighand->siglock, flags);
-	if (sighand->action[SIGCHLD-1].sa.sa_handler !=3D SIG_IGN &&
+	if (sighand->action[SIGCHLD-1].sa.sa_handler !=3D (void *)SIG_IGN &&
 	    !(sighand->action[SIGCHLD-1].sa.sa_flags & SA_NOCLDSTOP))
 		__group_send_sig_info(SIGCHLD, &info, parent);
 	/*
@@ -1581,9 +1581,9 @@
 		}
=20
 		ka =3D &current->sighand->action[signr-1];
-		if (ka->sa.sa_handler =3D=3D SIG_IGN) /* Do nothing.  */
+		if (ka->sa.sa_handler =3D=3D (void *)SIG_IGN) /* Do nothing.  */
 			continue;
-		if (ka->sa.sa_handler !=3D SIG_DFL) /* Run the handler.  */
+		if (ka->sa.sa_handler !=3D (void *)SIG_DFL) /* Run the handler.  */
 			return signr;
=20
 		/*
@@ -2034,8 +2034,8 @@
 		 *   (for example, SIGCHLD), shall cause the pending signal to
 		 *   be discarded, whether or not it is blocked"
 		 */
-		if (act->sa.sa_handler =3D=3D SIG_IGN ||
-		    (act->sa.sa_handler =3D=3D SIG_DFL &&
+		if (act->sa.sa_handler =3D=3D (void *)SIG_IGN ||
+		    (act->sa.sa_handler =3D=3D (void *)SIG_DFL &&
 		     sig_kernel_ignore(sig))) {
 			/*
 			 * This is a fairly rare case, so we only take the
Index: net/bridge/br_if.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/net/bridge/br_if.c,v
retrieving revision 1.8
diff -u -r1.8 br_if.c
--- net/bridge/br_if.c	5 May 2003 17:09:51 -0000	1.8
+++ net/bridge/br_if.c	11 May 2003 13:09:56 -0000
@@ -208,7 +208,7 @@
 	if (dev->flags & IFF_LOOPBACK || dev->type !=3D ARPHRD_ETHER)
 		return -EINVAL;
=20
-	if (dev->hard_start_xmit =3D=3D br_dev_xmit)
+	if (dev->hard_start_xmit =3D=3D (void *)br_dev_xmit)
 		return -ELOOP;
=20
 	dev_hold(dev);
Index: net/bridge/br_netfilter.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/net/bridge/br_netfilter.c,v
retrieving revision 1.6
diff -u -r1.6 br_netfilter.c
--- net/bridge/br_netfilter.c	5 May 2003 17:09:51 -0000	1.6
+++ net/bridge/br_netfilter.c	11 May 2003 13:09:56 -0000
@@ -521,8 +521,8 @@
    const struct net_device *in, const struct net_device *out,
    int (*okfn)(struct sk_buff *))
 {
-	if (in->hard_start_xmit =3D=3D br_dev_xmit &&
-	    okfn !=3D br_nf_pre_routing_finish) {
+	if (in->hard_start_xmit =3D=3D (void *)br_dev_xmit &&
+	    okfn !=3D (void *)br_nf_pre_routing_finish) {
 		okfn(*pskb);
 		return NF_STOLEN;
 	}
@@ -538,10 +538,10 @@
    const struct net_device *in, const struct net_device *out,
    int (*okfn)(struct sk_buff *))
 {
-	if (out->hard_start_xmit =3D=3D br_dev_xmit &&
-	    okfn !=3D br_nf_forward_finish &&
-	    okfn !=3D br_nf_local_out_finish &&
-	    okfn !=3D br_dev_queue_push_xmit) {
+	if (out->hard_start_xmit =3D=3D (void *)br_dev_xmit &&
+	    okfn !=3D (void *)br_nf_forward_finish &&
+	    okfn !=3D (void *)br_nf_local_out_finish &&
+	    okfn !=3D (void *)br_dev_queue_push_xmit) {
 		struct sk_buff *skb =3D *pskb;
 		struct nf_bridge_info *nf_bridge;
=20
Index: net/sunrpc/clnt.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.5/net/sunrpc/clnt.c,v
retrieving revision 1.12
diff -u -r1.12 clnt.c
--- net/sunrpc/clnt.c	8 Apr 2003 15:21:04 -0000	1.12
+++ net/sunrpc/clnt.c	11 May 2003 13:10:00 -0000
@@ -255,9 +255,9 @@
 	/* Turn off various signals */
 	if (clnt->cl_intr) {
 		struct k_sigaction *action =3D current->sighand->action;
-		if (action[SIGINT-1].sa.sa_handler =3D=3D SIG_DFL)
+		if (action[SIGINT-1].sa.sa_handler =3D=3D (void *)SIG_DFL)
 			sigallow |=3D sigmask(SIGINT);
-		if (action[SIGQUIT-1].sa.sa_handler =3D=3D SIG_DFL)
+		if (action[SIGQUIT-1].sa.sa_handler =3D=3D (void *)SIG_DFL)
 			sigallow |=3D sigmask(SIGQUIT);
 	}
 	spin_lock_irqsave(&current->sighand->siglock, irqflags);




--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

--j/dCmPD2xgTAf6cP
Content-Type: application/pgp-signature
Content-Disposition: inline

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Version: GnuPG v1.2.1 (GNU/Linux)

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=99ja
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--j/dCmPD2xgTAf6cP--


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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Re: patch 2.4.21 (follow up)
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On Sat, May 10, 2003 at 11:13:52PM +0100, Alan Cox wrote:
> Its in the 2.4.21rc2-ac tree. I've sent most of it to Marcelo on the
> grounds that it is zero risk even in a -rc because parisc doesnt work
> in his tree anyway. He may ask me to wait for 2.4.22pre1 though

That's the argument that's been made for the ia64 patchset.  He's not
been willing to take that either ;-(  Would it make life easier if you
took that too?  I can send that on in a separate mail if you like.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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<$B;v6H<T(B><$BAw?.<T(B>$B!!(BJS Co.,Ltd.
$B9A6h@>?766(B2-22-1
JSA$B;v6HIt(B
jsa@web-space.jp
----------------------------------------------------------
$BFCDj>&<h0zK!;\9T5,B'!!<u$1<h$j$r4uK>$7$J$$>l9g$NO"MmJ}K!(B
$BJ@<R$+$i$N9-9p%a!<%k$NG[?.Dd;_$r4uK>$N>l9g$O!"(B
$B-!2<5-#U#R#L$h$j%"%I%l%9$r$*CN$i$;$/$@$5$$!#(B
http://web-space.jp/jsa/kaijyo2.html
$B-"7oL>$r!VG[?.Dd;_!W$H=q$-49$((B
$B$3$N%a!<%k$rJV?.$7$F$/$@$5$$!#(B
$B$=$NJV?.85$N%"%I%l%9$KBP$9$kG[?.$ODd;_$$$?$7$^$9!#(B
$B!!!!!!!!(Bjsa@web-space.jp

$B!z!z!z!z!z!z(BPC$B:_Bp%9%?%C%UJg=8!z!z!z!z!z!z(B
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 $B!y!y!y!y!y!y!y!y!y!y!y!y!y!y!y!y!y!y!y!y!y(B
 $B>\:Y!&;qNA@A5a$O2<5-(BURL$B$+$i(B
 http://web-space.jp/jsa/
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 $B:_Bp(BWord$B!&(BExcel$B$G$*;E;v$N=PMh$kJ}$rJg=8$7$F$$$^$9!#(B
 
$B!!!!!!!!!!!!!ZJg=8FbMF![(B
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Subject: [parisc-linux] Re: patch 2.4.21 (follow up)
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>
>Its in the 2.4.21rc2-ac tree. I've sent most of it to Marcelo on the
>grounds that it is zero risk even in a -rc because parisc doesnt work
>in his tree anyway. He may ask me to wait for 2.4.22pre1 though
>
Thanks Alan,
    Joel


---------------------------------
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Re: patch 2.4.21 (follow up)
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On Llu, 2003-05-12 at 01:52, Matthew Wilcox wrote:
> On Sat, May 10, 2003 at 11:13:52PM +0100, Alan Cox wrote:
> > Its in the 2.4.21rc2-ac tree. I've sent most of it to Marcelo on the
> > grounds that it is zero risk even in a -rc because parisc doesnt work
> > in his tree anyway. He may ask me to wait for 2.4.22pre1 though
> 
> That's the argument that's been made for the ia64 patchset.  He's not
> been willing to take that either ;-(  Would it make life easier if you
> took that too?  I can send that on in a separate mail if you like.

Sure if you want - -ac is there to test stuff before it goes to Marcelo



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On Sun, May 11, 2003 at 03:30:37PM +0200, Jan-Benedict Glaw wrote:
> Hi!

Hi Jan.  Thanks for all the work you've put in, I really appreciate it.

>  - Ressurect CONFIG_BINFM_SOM when built as module: the hpux/ directory
>    was completely missing (this part needs cleanup from a Makefile
>    specialist), EXPORT_SYMBOL() the hpux_gateway_page if neccessary.

I was already planning a CONFIG_HPUX; I just hadn't got round to
committing that bit to the tree.  I've done that now and I think it
should solve all the problems you were experiencing.

>  - Export some more symbols (memchr, pdc_tod_read, pdc_tod_set,
>    __flush_dcache_page, dcache_stride) to make various modules happy.

Done.  None of these seemed like stuff we shouldn't be exporting.

>  - Add various void * casts to pointer compares (to solve the
>    __canonicalize_funcptr_for_compare missing symbol when built as
>    module because libgcc.a isn't linked into these modules)

I'm not applying these bits.  It's just not reasonable to add (void *)
casts to every function pointer comparison.  I know Linus will reject it.
We need to find a better way to fix this one -- and I suspect the right
way is to implement a __canonicalize_funcptr_for_compare in the kernel
and EXPORT_SYMBOL it.

> --- arch/parisc/oprofile/init.c	8 May 2003 13:31:44 -0000	1.5
> +++ arch/parisc/oprofile/init.c	11 May 2003 13:09:18 -0000
> @@ -11,6 +11,8 @@
>  #include <linux/init.h>
>  #include <linux/kernel.h>
>  #include <linux/oprofile.h>
> +#include <linux/init.h>
> +#include <linux/errno.h>

hmm... init.h and errno.h are already included earlier, so I didn't
apply this patch.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Mon, 2003-05-12 13:11:55 +0100, Matthew Wilcox <willy@debian.org>
wrote in message <20030512121155.GV29534@parcelfarce.linux.theplanet.co.uk>:
> On Sun, May 11, 2003 at 03:30:37PM +0200, Jan-Benedict Glaw wrote:
> >  - Add various void * casts to pointer compares (to solve the
> >    __canonicalize_funcptr_for_compare missing symbol when built as
> >    module because libgcc.a isn't linked into these modules)
>=20
> I'm not applying these bits.  It's just not reasonable to add (void *)
> casts to every function pointer comparison.  I know Linus will reject it.
> We need to find a better way to fix this one -- and I suspect the right
> way is to implement a __canonicalize_funcptr_for_compare in the kernel
> and EXPORT_SYMBOL it.

I thougt about that, but didn't do it this way because I didn't like the
approach to double libgcc's __canonicalize_funcptr_for_compare. Maybe
we'd simply find a way to EXPORT_SYMBOL libgcc's version of that one...

> > --- arch/parisc/oprofile/init.c	8 May 2003 13:31:44 -0000	1.5
> > +++ arch/parisc/oprofile/init.c	11 May 2003 13:09:18 -0000
> > @@ -11,6 +11,8 @@
> >  #include <linux/init.h>
> >  #include <linux/kernel.h>
> >  #include <linux/oprofile.h>
> > +#include <linux/init.h>
> > +#include <linux/errno.h>
>=20
> hmm... init.h and errno.h are already included earlier, so I didn't
> apply this patch.

Oh, fs*k. I had a merge conflict there and didn't pay enough attention:(
init.h and errno.h should be included once each... Sorry.

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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On Mon, 2003-05-12 15:22:48 +0200, Jan-Benedict Glaw <jbglaw@lug-owl.de>
wrote in message <20030512132248.GU27494@lug-owl.de>:
> On Mon, 2003-05-12 13:11:55 +0100, Matthew Wilcox <willy@debian.org>
> wrote in message <20030512121155.GV29534@parcelfarce.linux.theplanet.co.u=
k>:
> > On Sun, May 11, 2003 at 03:30:37PM +0200, Jan-Benedict Glaw wrote:
> > >  - Add various void * casts to pointer compares (to solve the
> > >    __canonicalize_funcptr_for_compare missing symbol when built as
> > >    module because libgcc.a isn't linked into these modules)
> >=20
> > I'm not applying these bits.  It's just not reasonable to add (void *)
> > casts to every function pointer comparison.  I know Linus will reject i=
t.
> > We need to find a better way to fix this one -- and I suspect the right
> > way is to implement a __canonicalize_funcptr_for_compare in the kernel
> > and EXPORT_SYMBOL it.
>=20
> I thougt about that, but didn't do it this way because I didn't like the
> approach to double libgcc's __canonicalize_funcptr_for_compare. Maybe
> we'd simply find a way to EXPORT_SYMBOL libgcc's version of that one...

I got a private reply to this part (which I accidentally /dev/null'ed)
basically stating that the kernel should implement an own version of
__canonicalize_funcptr_for_compare (instead of using that one which is in
libgcc).

Greping around reveals no own version in the Linux kernel so that one
that is used with built-in function pointers already seems to be
borrowed from libgcc. So a question remains:

	Shall we have an own version, or shall we stick wich gcc's
	version?

I already do know that libgcc did bring some problems with it along
(generate an athlon-aware compiler and then build a kernel for an
original i386:-) But I do _not_ know if those problems got smashed...

I think it would be most helpful to get some people's comments who are
more into gcc...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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> > I'm not applying these bits.  It's just not reasonable to add (void *)
> > casts to every function pointer comparison.  I know Linus will reject it.
> > We need to find a better way to fix this one -- and I suspect the right
> > way is to implement a __canonicalize_funcptr_for_compare in the kernel
> > and EXPORT_SYMBOL it.
> 
> I thougt about that, but didn't do it this way because I didn't like the
> approach to double libgcc's __canonicalize_funcptr_for_compare. Maybe
> we'd simply find a way to EXPORT_SYMBOL libgcc's version of that one...

No, you don't want to use the libgcc version as it is specific to
user programs.  A kernel version is needed.  I think all that needs to
be done is return the function pointer passed to it.  It should totally
disappear if inlined.  Thus, __canonicalize_funcptr_for_compare could
be defined in a header.

It might actually be necessary to do function pointer canonicalization
in the kernel in situations involving loadable modules.  One would
have to look at how the loader manages the plabels.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> No, you don't want to use the libgcc version as it is specific to
> user programs.  A kernel version is needed.  I think all that needs to
> be done is return the function pointer passed to it.  It should totally
> disappear if inlined.  Thus, __canonicalize_funcptr_for_compare could
> be defined in a header.

how does that work? __c_f_f_c is emitted by the compiler internally,
right? how can we define an inline version of this function?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> how does that work? __c_f_f_c is emitted by the compiler internally,
> right? how can we define an inline version of this function?

Dooh, you are correct.  I wrote a little test program and the libcall
doesn't get inlined.

So if no canonicalization is needed, you want something like:

typedef int (*fptr_t) (void);

unsigned int __canonicalize_funcptr_for_compare (fptr_t)
      __attribute__ ((visibility ("hidden")));

unsigned int
__canonicalize_funcptr_for_compare (fptr)
   fptr_t fptr;
{
  return (unsigned int)fptr;
}

The libgcc version is hidden.  That's because shared libraries need
their own copy which accesses the got table in the shared library.
Probably in the kernel implementation, a single copy of the routine
is sufficient and you don't want the hidden attibute.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Hi All,

I had some problems with gcc. When I set the CFLAGS/CXXFLAGS -march=2.0, most 
of the applications builded are b0rked. This occured on many stations. Using 
-march=1.1 works well.

Is this a 'feature' of unimplemented 64bit userspace or is this a bug ?

In case of a bug, what do you need to debug it.

Regards

-- 
Guy Martin
Gentoo - HPPA port Lead / IPv6 team
Lug Charleroi (Belgium)


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> I had some problems with gcc. When I set the CFLAGS/CXXFLAGS -march=2.0, most 
> of the applications builded are b0rked. This occured on many stations. Using 
> -march=1.1 works well.

How are they "b0rked"? Can you be a bit more precise?
 
> Is this a 'feature' of unimplemented 64bit userspace or is this a bug ?
> 
> In case of a bug, what do you need to debug it.

We compile pa20 32-bit kernels (e.g. for c3k) using 32-bit and
-march=2.0. seems to work. Do you have a test case for what you think
is broken? -march2.0 is really orthogonal to 64-bit userspace.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> In case of a bug, what do you need to debug it.

See <http:/gcc.gnu.org/bugs.html>.  A GCC PR should be submitted
if you believe the problem is a compiler bug.

Versions earlier than 3.3 are effectively dead, so I would recommend
testing with a 3.3 snapshot.  3.3 will be released very soon, probably
this week.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Tue, May 13, 2003 at 01:24:11PM +0100, Alan Hunter wrote:
> I can't get X started on a C240 and don't have sufficient background to get to grips with the problem.
> 
> Here's what dmesg says:
> STI GSC/PCI graphics driver version 0.9
> STI PCI graphic ROM found at f1e00000 (2048 kB), fb at f6000000 (32 MB)
> STI word mode ROM at f1e00044, hpa at f6000000
> STI id 2fc1066b-9a02587, conforms to spec rev. 8.09
> STI device: HPA4552A
> stifb: Unsupported gfx card id 0x2fc1066b

A4552A is the FX2 card and is unsupported; I saw someone offering to
swap an EG card (which is supported) for an FX card a couple of days
ago on this list.  Perhaps they're still interested?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hello all,
I am currently running on a J5000
2000 root # uname -a
Linux k2000 2.4.20-pa35 #2 SMP Sat May 10 10:36:26 EDT 2003 parisc unknown
unknown GNU/Linux


Gcc is as follows:
k2000 root # gcc -v
Reading specs from /usr/lib/gcc-lib/hppa2.0-unknown-linux-gnu/3.2.2/specs
Configured with: /var/tmp/portage/gcc-3.2.2/work/gcc-3.2.2/configure
--prefix=/usr --bindir=/usr/hppa2.0-unknown-linux-gnu/gcc-bin/3.2
--includedir=/usr/lib/gcc-lib/hppa2.0-unknown-linux-gnu/3.2.2/include
--datadir=/usr/share/gcc-data/hppa2.0-unknown-linux-gnu/3.2
--mandir=/usr/share/gcc-data/hppa2.0-unknown-linux-gnu/3.2/man
--infodir=/usr/share/gcc-data/hppa2.0-unknown-linux-gnu/3.2/info
--enable-shared --host=hppa2.0-unknown-linux-gnu
--target=hppa2.0-unknown-linux-gnu --with-system-zlib
--enable-languages=c,c++,ada,f77,objc --enable-threads=posix
--enable-long-long --disable-checking --enable-cstdio=stdio
--enable-clocale=generic --enable-__cxa_atexit
--enable-version-specific-runtime-libs
--with-gxx-include-dir=/usr/lib/gcc-lib/hppa2.0-unknown-linux-gnu/3.2.2/incl
ude/g++-v3 --with-local-prefix=/usr/local --enable-shared --enable-nls
--without-included-gettext
Thread model: posix
gcc version 3.2.2


This issue I am having is during compiling andthing big the box has a
tendency to just hang hard meaning power cord reboot. Has anyone seen this
before. I have a gig of ram and it does not seem to be a memory issue. I am
currently compiling KDE and it just hangs the box every now and then...
Anyone ? 



From - Thu Nov 08 21:27:48 2018
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From: =?ISO-8859-1?Q?Thibaut_VAR=C8NE?= <varenet@esiee.fr>
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Subject: Re: [parisc-linux] System hanging
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cat /proc/version please (ie: did you build your kernel with gcc 3.2.2?)

I've been running 12days straight of building gcc in loop while having=20=

2 setiathome instances running on a J5000 with 512M of RAM and=20
experienced no hangs, that was with 2.4.20-pa18 SMP 64bit, built with=20
gcc 3.0.4...

oh, and fwiw:
http://www.fr.parisc-linux.org/faq/kernelbug-howto.html


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

Le mardi, 13 mai 2003, =E0 15:50 Europe/Paris, Richard Todd a =E9crit :

> Hello all,
> I am currently running on a J5000
> 2000 root # uname -a
> Linux k2000 2.4.20-pa35 #2 SMP Sat May 10 10:36:26 EDT 2003 parisc=20
> unknown
> unknown GNU/Linux
>
>
> This issue I am having is during compiling andthing big the box has a
> tendency to just hang hard meaning power cord reboot. Has anyone seen=20=

> this
> before. I have a gig of ram and it does not seem to be a memory issue.=20=

> I am
> currently compiling KDE and it just hangs the box every now and =
then...
> Anyone ?=20=




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k2000 root # cat /proc/version
Linux version 2.4.20-pa35 (root@cdimage) (gcc version 3.2.2) #2 SMP Sat May
10 10:36:26 EDT 2003



On 5/13/03 10:39 AM, "Thibaut VAR=C8NE" <varenet@esiee.fr> wrote:

> cat /proc/version please (ie: did you build your kernel with gcc 3.2.2?)
>=20
> I've been running 12days straight of building gcc in loop while having
> 2 setiathome instances running on a J5000 with 512M of RAM and
> experienced no hangs, that was with 2.4.20-pa18 SMP 64bit, built with
> gcc 3.0.4...
>=20
> oh, and fwiw:
> http://www.fr.parisc-linux.org/faq/kernelbug-howto.html
>=20
>=20
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://pateam.esiee.fr/
>=20
> Le mardi, 13 mai 2003, =E0 15:50 Europe/Paris, Richard Todd a =E9crit :
>=20
>> Hello all,
>> I am currently running on a J5000
>> 2000 root # uname -a
>> Linux k2000 2.4.20-pa35 #2 SMP Sat May 10 10:36:26 EDT 2003 parisc
>> unknown
>> unknown GNU/Linux
>>=20
>>=20
>> This issue I am having is during compiling andthing big the box has a
>> tendency to just hang hard meaning power cord reboot. Has anyone seen
>> this
>> before. I have a gig of ram and it does not seem to be a memory issue.
>> I am
>> currently compiling KDE and it just hangs the box every now and then...
>> Anyone ?=20
>=20



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From: Guy Martin <gmsoft@gentoo.org>(by way of Guy Martin <gmsoft@gentoo.org>)
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Subject: Re: [parisc-linux] gcc and -march=2.0 flag bug
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> How are they "b0rked"? Can you be a bit more precise?

I've attached the the end of the compilation log of groff which fail with 
-march=2.0 in CXXFLAGS. The same compilation works perfectly without this 
flags or with -march=1.1 instead.

> We compile pa20 32-bit kernels (e.g. for c3k) using 32-bit and
> -march=2.0. seems to work. Do you have a test case for what you think
> is broken? -march2.0 is really orthogonal to 64-bit userspace.

After looking again more closely, it seems that only g++ is affected by this
bug. The kernel on the station was also compiled with -march=2.0.
About the test case, I don't have the time to look more to this problem but I
can give you a access to the box since it's a test box.

--
Guy Martin
Gentoo - HPPA port Lead / IPv6 team
Lug Charleroi (Belgium)



--Boundary-00=_vLSw+yLci4siwBX
Content-Type: text/x-log;
  charset="iso-8859-1";
  name="groff-march2.0-short.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename="groff-march2.0-short.log"

    rm -f $m-wrap; \
    if test "$m" = an; then \
      echo .do mso andoc.tmac >>$m-wrap; \
    fi; \
    echo .cp 1 >>$m-wrap; \
    echo .so $m >>$m-wrap; \
  done; \
fi
touch stamp-wrap
for f in man.tmac ms.tmac; do \
  rm -f $f-sed; \
  sed -e "s;@TMAC_AN_PREFIX@;;g" \
  -e "s;@TMAC_S_PREFIX@;;g" \
  /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/tmac/$f > $f-sed; \
done
touch stamp-sed
Making groff_ms.n from groff_ms.man
Making groff_man.n from groff_man.man
Making groff_me.n from groff_me.man
Making groff_mdoc.n from groff_mdoc.man
Making groff_trace.n from groff_trace.man
Making groff_www.n from groff_www.man
make[2]: Leaving directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/tmac'
make[2]: Entering directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/utils/afmtodit'
if test -n "/usr/bin/perl"; then \
  sed -e "s|/usr/bin/perl|/usr/bin/perl|" \
              -e "s|@VERSION@|1.18.1|" \
              /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/utils/afmtodit/afmtodit.pl >afmtodit; \
else \
  sed -e "s|@VERSION@|1.18.1|" \
              /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/utils/afmtodit/afmtodit.pl afmtodit; \
fi
chmod +x afmtodit
Making afmtodit.n from afmtodit.man
make[2]: Leaving directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/utils/afmtodit'
make[2]: Entering directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/roff/grog'
rm -f grog
sed -e "s|@g@||g" \
  -e "s|@VERSION@|1.18.1|" \
  -e 1s/a/a/ /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/roff/grog/grog.sh >grog
chmod +x grog
Making grog.n from grog.man
make[2]: Leaving directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/roff/grog'
make[2]: Entering directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/roff/nroff'
rm -f nroff
sed -e "s|@BINDIR@|/usr/bin|g" \
-e 1s/a/a/ \
-e "s|@VERSION@|1.18.1|" /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/roff/nroff/nroff.sh >nroff
chmod +x nroff
Making nroff.n from nroff.man
make[2]: Leaving directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/roff/nroff'
make[2]: Entering directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/mm'
rm -f mmroff
sed -e 's;/usr/bin/perl;/usr/bin/perl;' /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/mm/mmroff.pl >mmroff
chmod +x mmroff
Making mmroff.n from mmroff.man
Making groff_mm.n from groff_mm.man
Making groff_mmse.n from groff_mmse.man
make[2]: Leaving directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/mm'
make[2]: Entering directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/pic2graph'
rm -f pic2graph; \
sed -e "s|@g@||g" \
    -e "s|@VERSION@|1.18.1|" \
    -e 1s/a/a/ /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/pic2graph/pic2graph.sh >pic2graph; \
chmod +x pic2graph
Making pic2graph.n from pic2graph.man
make[2]: Leaving directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/pic2graph'
make[2]: Entering directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/eqn2graph'
rm -f eqn2graph; \
sed -e "s|@g@||g" \
    -e "s|@VERSION@|1.18.1|" \
    -e 1s/a/a/ /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/eqn2graph/eqn2graph.sh >eqn2graph; \
chmod +x eqn2graph
Making eqn2graph.n from eqn2graph.man
make[2]: Leaving directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/eqn2graph'
make[2]: Entering directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/groffer'
rm -f groffer; \
sed -e "s|@g@||g" \
    -e "s|@VERSION@|1.18.1|" \
    -e 1s/a/a/ /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/groffer/groffer.sh >groffer; \
chmod +x groffer
Making groffer.n from groffer.man
make[2]: Leaving directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/groffer'
make[2]: Entering directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/mom'
test -d examples || /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/mkinstalldirs examples
test -f penguin.ps || cp /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/mom/examples/penguin.ps .
GROFF_COMMAND_PREFIX=''; export GROFF_COMMAND_PREFIX; GROFF_BIN_PATH=`echo /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/roff/groff /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/roff/troff /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/devices/grops | sed -e 's|  *|:|g'`; export GROFF_BIN_PATH; /var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/roff/groff/groff -F/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/font -F/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/font -M/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/tmac -M/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/tmac -M/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/mom -Tps -mom examples/letter.mom >examples/letter.ps
troff: Failed assertion at line 654, file `number.cc'.
/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/src/roff/groff/groff: troff: Aborted
grops:<standard input>:5:warning: no final `x stop' command
make[2]: *** [examples/letter.ps] Error 2
make[2]: Leaving directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1/contrib/mom'
make[1]: *** [contrib/mom] Error 2
make[1]: Leaving directory `/var/tmp/portage/groff-1.18.1-r2/work/groff-1.18.1'
make: *** [all] Error 2

!!! ERROR: sys-apps/groff-1.18.1-r2 failed.
!!! Function src_compile, Line 57, Exitcode 2
!!! (no error message)


--Boundary-00=_vLSw+yLci4siwBX--



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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] gcc and -march=2.0 flag bug
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> I've attached the the end of the compilation log of groff which fail with 
> -march=2.0 in CXXFLAGS. The same compilation works perfectly without this 
> flags or with -march=1.1 instead.

[...]

> troff: Failed assertion at line 654, file `number.cc'.

You didn't say which compiler version that you were using.

As I mentioned, the 3.2 branch is closed for bug fixes.  The failure
doesn't occur with 3.3.  It has a number of -march=2.0 fixes.  The
problem could be C++ related as well.  There are a huge number of C++
fixes in 3.3 relative to 3.3.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> You didn't say which compiler version that you were using.

Yes sorry, I forgot. I use gcc-3.2.2. I'll try gcc-3.3 asap.

Thanks

> As I mentioned, the 3.2 branch is closed for bug fixes.  The failure
> doesn't occur with 3.3.  It has a number of -march=2.0 fixes.  The
> problem could be C++ related as well.  There are a huge number of C++
> fixes in 3.3 relative to 3.3.
>
> Dave

-- 
Guy Martin
Gentoo - HPPA port Lead / IPv6 team
Lug Charleroi (Belgium)


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> As I mentioned, the 3.2 branch is closed for bug fixes.  The failure
> doesn't occur with 3.3.  It has a number of -march=2.0 fixes.  The
> problem could be C++ related as well.  There are a huge number of C++
> fixes in 3.3 relative to 3.3.

Reading this inspired us to try compiling the 'menu' debian package 
with g++-3.3. Historically this package has been very problematic on
hppa because of its use of exceptions. It's been broken for a very long
time (couple years?).... but with latest g++-3.3 it actually compiles 
and works!!

Dave, many many thanks again for all your work on gcc.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> > As I mentioned, the 3.2 branch is closed for bug fixes.  The failure
> > doesn't occur with 3.3.  It has a number of -march=2.0 fixes.  The
> > problem could be C++ related as well.  There are a huge number of C++
> > fixes in 3.3 relative to 3.3.
> 
> Reading this inspired us to try compiling the 'menu' debian package 
> with g++-3.3. Historically this package has been very problematic on
> hppa because of its use of exceptions. It's been broken for a very long
> time (couple years?).... but with latest g++-3.3 it actually compiles 
> and works!!

I should also add that I've built lyx, another large C++ app, under
hpux and it seems to work.  I've also built it under linux but I
haven't tested it (no X).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> MR DUKAT KABILA  0031+615-421-228   
>

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>
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.
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>
>DUKAT KABILA(Jnr)
>
  
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On Tue, 2003-05-13 16:21:02 -0600, Paul Bame <bame@dsl2.external.hp.com>
wrote in message <20030513222102.33F00482D@dsl2.external.hp.com>:
> CVSROOT:	/var/cvs
> Module name:	build-tools
> Changes by:	bame	03/05/13 16:21:02
>=20
> Added files:
> 	.              : cvs-mkpatch=20
>=20
> Log message:
> initial rev -- make patch from modified cvs dir

=2E..as if you had read my thoughts, I'm currently planing a roadmap for
pushing all ports upstream to Linus and looking for what work I could
do. Please read it at http://www.lug-owl.de/~jbglaw/linux-ports/ and
comment on it!


Ob, I'm still waiting for your lock to vanish:

cvs server: [08:07:34] waiting for bame's lock in /var/cvs/obsolete/binutil=
s-2.10
cvs server: [08:08:04] waiting for bame's lock in /var/cvs/obsolete/binutil=
s-2.10
cvs server: [08:08:34] waiting for bame's lock in /var/cvs/obsolete/binutil=
s-2.10


Please remove the lock or the whole ./obsolete/ directory.

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

--lJhfsPy4o8B7pjPr
Content-Type: application/pgp-signature
Content-Disposition: inline

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--lJhfsPy4o8B7pjPr--


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On Wed, May 14, 2003 at 12:39:02AM +0200, Jan-Benedict Glaw wrote:
> ...as if you had read my thoughts, I'm currently planing a roadmap for
> pushing all ports upstream to Linus and looking for what work I could
> do. Please read it at http://www.lug-owl.de/~jbglaw/linux-ports/ and
> comment on it!

Well, it seems like a complete lie to me.

I think pretty much every architecture on your `really small userbase'
list would take issue with being placed there.  In particular, I think
PPC is the second-largest Linux userbase after x86.

The PA-RISC port doesn't have much in the way of tweaks to common drivers.

I don't understand why you say for 2.4:

"Nearly up to date, many patches need to go upstream"

and for 2.5:

"Not really up to date, but not far away; some work needs to be done..."

I don't know whether you're claiming the kernel.org tree is uptodate or
whether our repository is up to date.  Neither statement seems true for
either case.  

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: Re: [parisc-linux] Re: no screens found on C240
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It was me offering the trade, but I think his FX2 is GSC and not PCI like I need.  I could be wrong though.
 
derek

Matthew Wilcox <willy@debian.org> wrote:
On Tue, May 13, 2003 at 01:24:11PM +0100, Alan Hunter wrote:
> I can't get X started on a C240 and don't have sufficient background to get to grips with the problem.
> 
> Here's what dmesg says:
> STI GSC/PCI graphics driver version 0.9
> STI PCI graphic ROM found at f1e00000 (2048 kB), fb at f6000000 (32 MB)
> STI word mode ROM at f1e00044, hpa at f6000000
> STI id 2fc1066b-9a02587, conforms to spec rev. 8.09
> STI device: HPA4552A
> stifb: Unsupported gfx card id 0x2fc1066b

A4552A is the FX2 card and is unsupported; I saw someone offering to
swap an EG card (which is supported) for an FX card a couple of days
ago on this list. Perhaps they're still interested?

-- 
"It's not Hollywood. War is real, war is primarily not about defeat or
victory, it is about death. I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

---------------------------------
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The New Yahoo! Search - Faster. Easier. Bingo.
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<DIV>It was me offering the trade, but I think his FX2 is GSC and not PCI like I need.&nbsp; I could be wrong though.</DIV>
<DIV>&nbsp;</DIV>
<DIV>derek<BR><BR><B><I>Matthew Wilcox &lt;willy@debian.org&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">On Tue, May 13, 2003 at 01:24:11PM +0100, Alan Hunter wrote:<BR>&gt; I can't get X started on a C240 and don't have sufficient background to get to grips with the problem.<BR>&gt; <BR>&gt; Here's what dmesg says:<BR>&gt; STI GSC/PCI graphics driver version 0.9<BR>&gt; STI PCI graphic ROM found at f1e00000 (2048 kB), fb at f6000000 (32 MB)<BR>&gt; STI word mode ROM at f1e00044, hpa at f6000000<BR>&gt; STI id 2fc1066b-9a02587, conforms to spec rev. 8.09<BR>&gt; STI device: HPA4552A<BR>&gt; stifb: Unsupported gfx card id 0x2fc1066b<BR><BR>A4552A is the FX2 card and is unsupported; I saw someone offering to<BR>swap an EG card (which is supported) for an FX card a couple of days<BR>ago on this list. Perhaps 
 they're still interested?<BR><BR>-- <BR>"It's not Hollywood. War is real, war is primarily not about defeat or<BR>victory, it is about death. I've seen thousands and thousands of dead bodies.<BR>Do you think I want to have an academic debate on this subject?" -- Robert Fisk<BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><hr SIZE=1>
Do you Yahoo!?<br>
<a href="http://us.rd.yahoo.com/search/mailsig/*http://search.yahoo.com">The New Yahoo! Search</a> - Faster. Easier. Bingo.
--0-1582450767-1052869459=:32197--


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From: Richard Todd <rtodd@antipentium.com>
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Subject: Re: [parisc-linux] Re: no screens found on C240
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I just came onto a few C180s if anyone wants one but I am in the
Philadelphia area and really do not want to ship any more of these...so if
you want come get



On 5/13/03 7:44 PM, "Derek Engelhaupt" <derekengelhaupt@rocketmail.com>
wrote:

> It was me offering the trade, but I think his FX2 is GSC and not PCI like I
> need.  I could be wrong though.
>  
> derek
> 
> Matthew Wilcox <willy@debian.org> wrote:
>> On Tue, May 13, 2003 at 01:24:11PM +0100, Alan Hunter wrote:
>>> > I can't get X started on a C240 and don't have sufficient background to
>>> get to grips with the problem.
>>> > 
>>> > Here's what dmesg says:
>>> > STI GSC/PCI graphics driver version 0.9
>>> > STI PCI graphic ROM found at f1e00000 (2048 kB), fb at f6000000 (32 MB)
>>> > STI word mode ROM at f1e00044, hpa at f6000000
>>> > STI id 2fc1066b-9a02587, conforms to spec rev. 8.09
>>> > STI device: HPA4552A
>>> > stifb: Unsupported gfx card id 0x2fc1066b
>> 
>> A4552A is the FX2 card and is unsupported; I saw someone offering to
>> swap an EG card (which is supported) for an FX card a couple of days
>> ago on this list. Perhaps they're still interested?



--B_3135700372_27098146
Content-type: text/html; charset="US-ASCII"
Content-transfer-encoding: quoted-printable

<HTML>
<HEAD>
<TITLE>Re: [parisc-linux] Re: no screens found on C240</TITLE>
</HEAD>
<BODY>
<FONT FACE=3D"Verdana">I just came onto a few C180s if anyone wants one but I=
 am in the Philadelphia area and really do not want to ship any more of thes=
e...so if you want come get<BR>
<BR>
<BR>
<BR>
On 5/13/03 7:44 PM, &quot;Derek Engelhaupt&quot; &lt;derekengelhaupt@rocket=
mail.com&gt; wrote:<BR>
<BR>
</FONT><BLOCKQUOTE><FONT FACE=3D"Verdana">It was me offering the trade, but I=
 think his FX2 is GSC and not PCI like I need. &nbsp;I could be wrong though=
.<BR>
&nbsp;<BR>
derek<BR>
<BR>
<B><I>Matthew Wilcox &lt;willy@debian.org&gt;</I></B> wrote:<BR>
</FONT><BLOCKQUOTE><FONT FACE=3D"Verdana">On Tue, May 13, 2003 at 01:24:11PM =
+0100, Alan Hunter wrote:<BR>
&gt; I can't get X started on a C240 and don't have sufficient background t=
o get to grips with the problem.<BR>
&gt; <BR>
&gt; Here's what dmesg says:<BR>
&gt; STI GSC/PCI graphics driver version 0.9<BR>
&gt; STI PCI graphic ROM found at f1e00000 (2048 kB), fb at f6000000 (32 MB=
)<BR>
&gt; STI word mode ROM at f1e00044, hpa at f6000000<BR>
&gt; STI id 2fc1066b-9a02587, conforms to spec rev. 8.09<BR>
&gt; STI device: HPA4552A<BR>
&gt; stifb: Unsupported gfx card id 0x2fc1066b<BR>
<BR>
A4552A is the FX2 card and is unsupported; I saw someone offering to<BR>
swap an EG card (which is supported) for an FX card a couple of days<BR>
ago on this list. Perhaps they're still interested?<BR>
</FONT></BLOCKQUOTE></BLOCKQUOTE><FONT FACE=3D"Verdana"><BR>
</FONT>
</BODY>
</HTML>


--B_3135700372_27098146--



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Subject: Re: [parisc-linux] Re: no screens found on C240
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On Tue, May 13, 2003 at 04:44:19PM -0700, Derek Engelhaupt wrote:
> It was me offering the trade, but I think his FX2 is GSC and not PCI like
> I need.  I could be wrong though.

I think HP FX[E246] are PCI only.
C240 has 64-bit wide PCI slots.

grant


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Subject: Re: [parisc-linux] Re: no screens found on C240
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On Tuesday, May 13, 2003, at 20:43 US/Eastern, Grant Grundler wrote:

> On Tue, May 13, 2003 at 04:44:19PM -0700, Derek Engelhaupt wrote:
>> It was me offering the trade, but I think his FX2 is GSC and not PCI 
>> like
>> I need.  I could be wrong though.
>
> I think HP FX[E246] are PCI only.

Correct. As are the FX-5 & FX-10. The Vis-EG is the odd one: there were 
both GSC & PCI versions.




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The latest glibc on hppa (2.3.1-17) was compiled with a gcc-3.2 which
has the __canonicalize_funcptr_for_compare patch backported from gcc-3.3
... with this new version, some programs will die on startup (e.g. vim).
I traced to a segfault in __canonicalize_funcptr_for_compare. 

The testcase below illustrates the problem:

=====
typedef void (*func_t)(void);

#define N ((func_t)2)

void foo(void) {};

int main(int argc, char **argv)
{
        return (foo == N);
}
=====

this program segfaults when run with:

(gdb) run
Starting program: /home/tausq/sig

Program received signal SIGSEGV, Segmentation fault.
0x00010530 in __canonicalize_funcptr_for_compare ()
(gdb) bt
#0  0x00010530 in __canonicalize_funcptr_for_compare ()
#1  0x000104bc in main (argc=1, argv=0xfaf001b8) at sig.c:9

it seems like the 2 in the constant (N) confuses the comparision
routine. If I change it to 1, everything is ok.... I don't really
understand this tho, because the code for __c_f_f_c has something like:

if ((int) fptr == -1 || (unsigned int) fptr < 4096 || !((int) fptr & 2))
    return (unsigned int) fptr;

so, why doesn't that match the second || case and exit?  (gdb
disassmbly shows that the code tries to dereference the fptr argument
and segfaults)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Tue, 2003-05-13 23:50:22 +0100, Matthew Wilcox <willy@debian.org>
wrote in message <20030513225022.GQ29534@parcelfarce.linux.theplanet.co.uk>:
> On Wed, May 14, 2003 at 12:39:02AM +0200, Jan-Benedict Glaw wrote:
> > ...as if you had read my thoughts, I'm currently planing a roadmap for
> > pushing all ports upstream to Linus and looking for what work I could
> > do. Please read it at http://www.lug-owl.de/~jbglaw/linux-ports/ and
> > comment on it!
>=20
> I think pretty much every architecture on your `really small userbase'
> list would take issue with being placed there.  In particular, I think
> PPC is the second-largest Linux userbase after x86.

I'm not looking for "mainstream" parts (like current PowerMACs) but for
the ports/boards which are problematic. And some of the rare boards *do*
have problems. For MIPS, even some boards got removed some time ago and
there are more which may follow. So please, don't get me wrong here.
Some boards do work quite good most og the time (taking current port's
source trees), some do not. Simply take it as "PeeCee is less bug prone
than my super-rare MIPS/PPC/whatever eval board".

> The PA-RISC port doesn't have much in the way of tweaks to common drivers.

"Not much" means there are some. These should go upstream at some time,
or we may need to get a better way to deal with specific things. As the
(E)ISA bus in Indigo2 is getting available, there may be some things
that need to get cleaned up in ISA code. Soma counts here...

> I don't understand why you say for 2.4:
>=20
> "Nearly up to date, many patches need to go upstream"

Everything synced up (maybe except yesterday's work)?

> and for 2.5:
>=20
> "Not really up to date, but not far away; some work needs to be done..."

Well, I think it's basically about accepting or not accepting the fact
that some archs/boards are being developed without syncing "too early"
with upstream. This leads to:

	- I need to have more than one source tree laying around.
	- Unintended breakages show up too late.
	- Unintended conflicts may arise from syncing up later than
	  "now".

For me, I'd like to have _one_ tree which works in all situations
(except yesterday's work...). While whining for that, I'm also asking
for hints what _I_ can do to make this happen. Parisc is even one of the
more "simpler" ports to sync up...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
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k!
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Subject: [parisc-linux] RE: Dump module patche.
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Hi Bruno,

>
>Attachment: dump_modules-2.4.20-pa32.patch2
>
I apply it against last 2.4.20-pa35 (do not have any more pa22 :( ) (just
2 hunk to remove). Unfortunately it failed to compile with following message:
`gcc-3.0 -print-libgcc-file-name` /usr/src/LKCD/hppa/linux-2.4.20-pa35-lkcd/arch/parisc/lib/lib.a
/usr/src/LKCD/hppa/linux-2.4.20-pa35-lkcd/lib/lib.a  \
	--end-group \
	-o vmlinux
fs/fs.o(.debug_info+0x6fbaf): undefined reference to `.L1225'
make: *** [vmlinux] Error 1

(Sorry I already met this kind of pb but do not remember how to solve :()

Thanks for your undertand,
    Joel

PS: No more support of compression (I tried libz2 but it do not found some
object at ld time)?

---------------------------------
Vous surfez avec une ligne classique ?
Economisez jusqu' 25% avec Tiscali Complete !
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On Tue, May 13, 2003 at 10:52:25PM -0700, Randolph Chung wrote:
> The latest glibc on hppa (2.3.1-17) was compiled with a gcc-3.2 which
> has the __canonicalize_funcptr_for_compare patch backported from gcc-3.3
> ... with this new version, some programs will die on startup (e.g. vim).
> I traced to a segfault in __canonicalize_funcptr_for_compare. 
> 
> The testcase below illustrates the problem:
> 
> =====
> typedef void (*func_t)(void);
> 
> #define N ((func_t)2)
> 
> void foo(void) {};
> 
> int main(int argc, char **argv)
> {
>         return (foo == N);
> }
> =====
> 
> this program segfaults when run with:
> 
> (gdb) run
> Starting program: /home/tausq/sig
> 
> Program received signal SIGSEGV, Segmentation fault.
> 0x00010530 in __canonicalize_funcptr_for_compare ()
> (gdb) bt
> #0  0x00010530 in __canonicalize_funcptr_for_compare ()
> #1  0x000104bc in main (argc=1, argv=0xfaf001b8) at sig.c:9
> 
> it seems like the 2 in the constant (N) confuses the comparision
> routine. If I change it to 1, everything is ok.... I don't really
> understand this tho, because the code for __c_f_f_c has something like:
> 
> if ((int) fptr == -1 || (unsigned int) fptr < 4096 || !((int) fptr & 2))
>     return (unsigned int) fptr;
> 
> so, why doesn't that match the second || case and exit?  (gdb
> disassmbly shows that the code tries to dereference the fptr argument
> and segfaults)

Even if this were fixed, it seems like a quality of implementation issue.
Basically, we're saying that if none of these conditions are met, it's
safe to dereference this pointer, and I'm sure we'll find people stuffing
other magic values into pointers.

I see three options:

1) Continue with this, accepting that some badly written software won't
   run.

2) Install a signal handler that handles the segfault (we can lose two of
   the tests this way, so it'll be faster in the common case)

3) Change the ABI.  Make it so we always have unique PLabels.  Recompile
   anything necessary.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> if ((int) fptr == -1 || (unsigned int) fptr < 4096 || !((int) fptr & 2))
>     return (unsigned int) fptr;
> 
> so, why doesn't that match the second || case and exit?  (gdb
> disassmbly shows that the code tries to dereference the fptr argument
> and segfaults)

sigh, after some sleep i realize that i was looking at the real 3.3 tree
instead of my backport, and in the current 3.2 patch the second test is
missing....  (because it was derived from an earlier snapshot of jda's
patch)

i'll send an update to debian-gcc... sorry about this.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: Re: [parisc-linux] [PATCH-2.5] Various cleanups
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Xref: news.gmane.org gmane.linux.ports.parisc:18480

>> how does that work? __c_f_f_c is emitted by the compiler internally,
>> right? how can we define an inline version of this function?
>
>Dooh, you are correct.  I wrote a little test program and the libcall
>doesn't get inlined.
>
>So if no canonicalization is needed, you want something like:
>
>typedef int (*fptr_t) (void);
>
>unsigned int __canonicalize_funcptr_for_compare (fptr_t)
>      __attribute__ ((visibility ("hidden")));
>
>unsigned int
>__canonicalize_funcptr_for_compare (fptr)
>   fptr_t fptr;
>{
>  return (unsigned int)fptr;
>}
>
>The libgcc version is hidden.  That's because shared libraries need
>their own copy which accesses the got table in the shared library.
>Probably in the kernel implementation, a single copy of the routine
>is sufficient and you don't want the hidden attibute.
>
Hi all,

I just try to build a kernel with following stuff:
add first include/asm-parisc/fptr.h:

typedef int (*fptr_t) (void);

extern unsigned int __canonicalize_funcptr_for_compare (fptr_t)
      __attribute__ ((visibility ("hidden")));


and arch/parisc/lib/fptr.c 


#include <asm/fptr.h>

unsigned int
__canonicalize_funcptr_for_compare (fptr)
     fptr_t fptr;
{
    return (unsigned int) fptr;
}

also arch/parisc/kernel/parisc_ksyms.c:
[...]
#include <asm/fptr.h>  
EXPORT_SYMBOL(__canonicalize_funcptr_for_compare);


to finaly arch/parisc/lib/Makefile:
-obj-y   := lusercopy.o bitops.o checksum.o io.o memset.o
+obj-y   := lusercopy.o bitops.o checksum.o io.o memset.o fptr.o

The compile seems ok but knowing not yet anything about modules I would appreciate
your advises before trying to boot it.

Thanks,
    Joel


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Subject: Re: [parisc-linux] more on canonicalize_funcptr_for_compare
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> > if ((int) fptr == -1 || (unsigned int) fptr < 4096 || !((int) fptr & 2))
> >     return (unsigned int) fptr;
> > 
> > so, why doesn't that match the second || case and exit?  (gdb
> > disassmbly shows that the code tries to dereference the fptr argument
> > and segfaults)
> 
> Even if this were fixed, it seems like a quality of implementation issue.
> Basically, we're saying that if none of these conditions are met, it's
> safe to dereference this pointer, and I'm sure we'll find people stuffing
> other magic values into pointers.

The magic values were arbitrarily chosen to be the same as under hpux.

> I see three options:
> 
> 1) Continue with this, accepting that some badly written software won't
>    run.

I'm not going to lose sleep on this one.  Obviously, using implementation
dependent features of function pointers is not portable.

> 2) Install a signal handler that handles the segfault (we can lose two of
>    the tests this way, so it'll be faster in the common case)
> 
> 3) Change the ABI.  Make it so we always have unique PLabels.  Recompile
>    anything necessary.

It would be nice to have the 32 and 64 bit ABIs the same in this
respect.  However, this requires non trivial changes to the dynamic
loader and linker.  I'm not sure what the extra overhead would be.
Function pointer comparisons aren't done very often in user code.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] RE: Dump module patche.
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> >Attachment: dump_modules-2.4.20-pa32.patch2
> >
> I apply it against last 2.4.20-pa35 (do not have any more pa22 :( ) (just
> 2 hunk to remove). Unfortunately it failed to compile with following message:
> `gcc-3.0 -print-libgcc-file-name` /usr/src/LKCD/hppa/linux-2.4.20-pa35-lkcd/arch/parisc/lib/lib.a
> /usr/src/LKCD/hppa/linux-2.4.20-pa35-lkcd/lib/lib.a  \
> 	--end-group \
> 	-o vmlinux
> fs/fs.o(.debug_info+0x6fbaf): undefined reference to `.L1225'
> make: *** [vmlinux] Error 1
> 
> (Sorry I already met this kind of pb but do not remember how to solve :()

At first glance, this would appear to be a GCC bug.  If I was to guess,
it's a problem with a label for a jump table being deleted.

You might be able to avoid the problem by compiling fs.o with a different
optimization.  The problem could be investigated further by generating
the assember output for the routine with -g.  Search for the above label.
The debug information in the file will allow finding the source line.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: [parisc-linux] sym53c8xx.c
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The sym53c8xx driver is near to being removed from 2.6.  Can anyone think
of a situation where we might still want it?  I'm concerned that maybe
some of the fixes didn't go into the sym53c8xx_2 driver.  In particular,
I'd like to know that the sym53c8xx_2 driver in 2.5 works on C3k (wide &
narrow!) and A500.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Wed, 2003-05-14 at 16:58, Matthew Wilcox wrote:
> 
> The sym53c8xx driver is near to being removed from 2.6.  Can anyone think
> of a situation where we might still want it?  I'm concerned that maybe
> some of the fixes didn't go into the sym53c8xx_2 driver.  In particular,
> I'd like to know that the sym53c8xx_2 driver in 2.5 works on C3k (wide &
> narrow!) and A500.

Just to clarify the plans:

NCR53C8XX and SYM53C8XX will be removed as CONFIG_ options.  ncr53c8xx.c
will continue to exist for Zalon (and has already been revamped for the
new error handling).  the SYM_2 will become the only selectable self
compiling driver.

James




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> The sym53c8xx driver is near to being removed from 2.6.  Can anyone think
> of a situation where we might still want it?  I'm concerned that maybe
> some of the fixes didn't go into the sym53c8xx_2 driver.  In particular,
> I'd like to know that the sym53c8xx_2 driver in 2.5 works on C3k (wide &
> narrow!) and A500.

it definitely works on a500 with 2.5, and on c3k (narrow & wide) with 
2.4. I am still not able to boot up my c3k with 2.5 because of the 
suckyio serial console problems :(

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Le mercredi, 14 mai 2003, =E0 23:58 Europe/Paris, Matthew Wilcox a =E9crit=
 :

>
> The sym53c8xx driver is near to being removed from 2.6.  Can anyone=20
> think
> of a situation where we might still want it?  I'm concerned that maybe
> some of the fixes didn't go into the sym53c8xx_2 driver.  In=20
> particular,
> I'd like to know that the sym53c8xx_2 driver in 2.5 works on C3k (wide=20=

> &
> narrow!) and A500.
We've been using SYM2 on our A500 SMP for quite a large amount of time=20=

now,
not experiencing anymore race problem.
I recall some troubles on B2600 (bame experienced those as well, the box
just went very lazzy; and you could heard the HD twinkling twice a=20
second)
but we had no chance to test SYM2 on that box lately...
Maybe we can give it a shot on our J5k which is currently running SYM1
(SMP kernel as well).

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=




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Dave,

>
>
>> >Attachment: dump_modules-2.4.20-pa32.patch2
>> >
>> I apply it against last 2.4.20-pa35 (do not have any more pa22 :( ) (just
>> 2 hunk to remove). Unfortunately it failed to compile with following message:
>> `gcc-3.0 -print-libgcc-file-name` /usr/src/LKCD/hppa/linux-2.4.20-pa35-lkcd/arch/parisc/lib/lib.a
>> /usr/src/LKCD/hppa/linux-2.4.20-pa35-lkcd/lib/lib.a  \
>> 	--end-group \
>> 	-o vmlinux
>> fs/fs.o(.debug_info+0x6fbaf): undefined reference to `.L1225'
>> make: *** [vmlinux] Error 1
>> 
>> (Sorry I already met this kind of pb but do not remember how to solve
:()
>
>At first glance, this would appear to be a GCC bug.  If I was to guess,
>it's a problem with a label for a jump table being deleted.

I will try gcc-3.2 (or later) because

>
>You might be able to avoid the problem by compiling fs.o with a different
>optimization.  The problem could be investigated further by generating
>the assember output for the routine with -g.  Search for the above label.
>The debug information in the file will allow finding the source line.
>

fs.o is in fact a lib build with "ld -r -o fs.o open.o read_rite.o [...]"

and 'objdump -d fs.o' do not actualy help me to find back any above references
:(

Thanks,
    Joel


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Bruno,
>
>>
>>sorry, I don't remember this kind of error...did you try make mrproper
???
>>
>>
>I think so as I prefer distclean?
>
>umm 2.4.20-pa32 is still available in ftp.p-l.org:/cvs so I will first grab
>it and apply patch. Then comeback to you :)
>
It didn't help so I have to come back to you with severall questions:

A. what is your compiler release gcc 3.0 3.2 3.3?

B. I suspect also a different .config: may I ask your to compare with mine?

Thanks again,
    Joel


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Does anyone know of a driver or what driver to use with the J5000 to try to
get xfree working 
STI device: HPA4554A
stifb: Unsupported gfx card id 0x2fc1066b

Display controller: Hewlett-Packard Company Visualize FX4 (rev 02)

Any Help would really be appreciated
-- 

  
Never be afraid to try something new.
Remember, Amateurs built the ark. Professionals built
the Titanic. 

...



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>
>gcc version 3.0.4
>
>
>Joel Soete wrote:
>> Bruno,
>> 
>>>>sorry, I don't remember this kind of error...did you try make mrproper
>>>
>> ???
>> 
>>>>
>>>I think so as I prefer distclean?
>>>
>>>umm 2.4.20-pa32 is still available in ftp.p-l.org:/cvs so I will first
>grab
>>>it and apply patch. Then comeback to you :)
>>>
>> 
>> It didn't help so I have to come back to you with severall questions:
>> 
>> A. what is your compiler release gcc 3.0 3.2 3.3?
>> 
>> B. I suspect also a different .config: may I ask your to compare with
mine?
>> 
>
>Attachment: config
>
Well very very different from mine I will so test also on my b2k (but in
32bits and 64bits).

in the mean time I reach to build a kernel 2.4.21-pa32 with gcc-3.2 but I
forget the __c_f_f_c pb so it crash imedieately, I will so go test 2.4.21-pa35
with your patch.

See you later,
    Joel


---------------------------------
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Sorry ,

>in the mean time I reach to build a kernel 2.4.21-pa32 with gcc-3.2 but
I
>forget the __c_f_f_c pb so it crash imedieately, I will so go test 2.4.21-pa35
>with your patch.

read 2.4.20...

    Joel


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From: Vincent Sanders <vince@kyllikki.org>
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Subject: [parisc-linux] Serial console on a 715/33
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I have recently aquired a HP 715/33 machine.
It has 32Mb fitted in a pair of simms and a 2Gb hard disc

I have aquired the machine without keyboard or monitor and as i
intended it to run as a headless system this wasnt an issue. However I
have discovered I need to gain access to the boot prom to change the
settings (I am very familiar with such things from SUN kit). I have
discovered how to get a sensible graphics (1024x768) mode by changing
the dip switches at the back of the board but still dont have a
keyboard.

I have attempted a number of times to get serial console to work by
holding down TOC at boot time to no avail (suggested by mathew
wilcox). I have managed to get the system to boot from the network
using rboot and disconnecting the hard disc then reconnecting the hard
drive and installing debian :-)

This means i have a working debian system but i still cannot get
access to the boot monitor to change any settings.

Does anyone have any clues to get the boot monitor to switch to serial
console without acess to a keyboard or hpux.

--=20
Regards Vincent
http://www.kyllikki.org/

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From: Jesse Dougherty <jesse@cypress-tech.com>
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Subject: [parisc-linux] HP Industrial Controllers & CPUs
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Does anyone have any of these older HP-UX workstations and or CPUs that
might be available for surplus sale or trade?

A1255A  9000/745/165L Workstation
A4964A  9000/745/132L Workstation
A4513A  9000/748/165L Workstation
A4510A  9000/748/132L Workstation
A4311A  9000/748i/100 Workstation
A2638A  9000/745i/100 Workstation
A2261A  9000/745i/100 Workstation
A4511A  9000/744/165L Single Board Computer
A4500A  9000/744/132L Single Board Computer
A4512A  9000/744rt/165L Single Board Computer
A4520A  9000/744rt/132L Single Board Computer
A4260A  9000/743i/100 Single Board Computer


Thanks
Jesse Dougherty
Cypress Technology, Inc
Re-Sellers of HP 3000/9000 products
12890 Automobile Blvd
Clearwater, FL 33762
727-557-0911 / fax 727-557-0014
jesse@cypress-tech.com
www.cypress-tech.com



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Subject: Re: [parisc-linux] J5000 and Xfree
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That graphics card, the FX4, is not supported under Debian.  Only the EG variants are supported ie: A4977A on the J5000.  Check out this Ebay auction (no affillation with seller):

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3023848603&category=11221
 
I was getting rid of my spare A4977A card, but it is spoken for.
 
derek
 

Richard Todd <rtodd@antipentium.com> wrote:
Does anyone know of a driver or what driver to use with the J5000 to try to
get xfree working 
STI device: HPA4554A
stifb: Unsupported gfx card id 0x2fc1066b

Display controller: Hewlett-Packard Company Visualize FX4 (rev 02)

Any Help would really be appreciated
-- 


Never be afraid to try something new.
Remember, Amateurs built the ark. Professionals built
the Titanic. 

...

_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

---------------------------------
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The New Yahoo! Search - Faster. Easier. Bingo.
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<DIV>That graphics card, the FX4, is not supported under Debian.&nbsp; Only the EG variants are supported ie: A4977A on the J5000.&nbsp; Check out this Ebay auction (no affillation with seller):</DIV>
<DIV><BR><A href="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;item=3023848603&amp;category=11221">http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;item=3023848603&amp;category=11221</A></DIV>
<DIV>&nbsp;</DIV>
<DIV>I was getting rid of my spare A4977A card, but it is spoken for.</DIV>
<DIV>&nbsp;</DIV>
<DIV>derek</DIV>
<DIV>&nbsp;</DIV>
<DIV><BR><B><I>Richard Todd &lt;rtodd@antipentium.com&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Does anyone know of a driver or what driver to use with the J5000 to try to<BR>get xfree working <BR>STI device: HPA4554A<BR>stifb: Unsupported gfx card id 0x2fc1066b<BR><BR>Display controller: Hewlett-Packard Company Visualize FX4 (rev 02)<BR><BR>Any Help would really be appreciated<BR>-- <BR><BR><BR>Never be afraid to try something new.<BR>Remember, Amateurs built the ark. Professionals built<BR>the Titanic. <BR><BR>...<BR><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><hr SIZE=1>
Do you Yahoo!?<br>
<a href="http://us.rd.yahoo.com/search/mailsig/*http://search.yahoo.com">The New Yahoo! Search</a> - Faster. Easier. Bingo.
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	Hi
I have a small request for this modules. Is it possible to
add a small hak in the process_shutdown() function in order
to call panic() if the soft power button is pressed 3 time
shortly.
It really help to analyze problem in hanging situation.

	Thanks.

-- 
	Vidal Bruno, (770-4271)
         SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@hp.com



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Hi All,

I am now runing a kernel 2.4.20-pa35 + lkcd bruno's patch with gcc-3.2.

In the mean time I made a distupgrade which mainly update binutils from 2.13.90.0.18-1.7
to 2.14.90.0.1-0.1 which make now failed the rebuild of the kernel:
[...]
gcc -D__ASSEMBLY__ -traditional -D__KERNEL__ -I/usr/src/LKCD/hppa/linux-2.4.20-pa35-lkcd/include
 -c -o entry.o entry.S
entry.S: Assembler messages:
entry.S:191: Error: Undefined .EXPORT/.IMPORT argument (ignored): 
entry.S:191: Error: Undefined .EXPORT/.IMPORT argument (ignored): code
entry.S:514: Error: Undefined .EXPORT/.IMPORT argument (ignored): 
entry.S:514: Error: Undefined .EXPORT/.IMPORT argument (ignored): code
entry.S:573: Error: Undefined .EXPORT/.IMPORT argument (ignored): 
entry.S:573: Error: Undefined .EXPORT/.IMPORT argument (ignored): code
entry.S:574: Error: Undefined .EXPORT/.IMPORT argument (ignored): 
entry.S:574: Error: Undefined .EXPORT/.IMPORT argument (ignored): code
entry.S:603: Error: Undefined .EXPORT/.IMPORT argument (ignored): 
entry.S:603: Error: Undefined .EXPORT/.IMPORT argument (ignored): code
entry.S:858: Error: Undefined .EXPORT/.IMPORT argument (ignored): 
entry.S:858: Error: Undefined .EXPORT/.IMPORT argument (ignored): code
make[1]: *** [entry.o] Error 1
make[1]: Leaving directory `/usr/src/LKCD/hppa/linux-2.4.20-pa35-lkcd/arch/parisc/kernel'
make: *** [_dir_arch/parisc/kernel] Error 2
[...]

Any idea?

Thanks,
    Joel



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From - Thu Nov 08 21:27:50 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Help configuring an HIL mouse on an HP 715. - (Major disaster! - Am I back at ground level 0?)
Date: Fri, 16 May 2003 11:25:55 -0600
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On Thu, May 15, 2003 at 12:09:25PM -0700, Jaime Ash wrote:
> Hi Grant,
> I did manage to recover by using a combination of the tips above (except
> that I had to modify the first tip to: "boot alt isl", instead)

yup - sorry about that. I'm going to move this conversation to
the parisc-linux mailing list since this revolves around the HIL
support in the kernel.

> Since I can't get "vmlinux-2.4.20-32" to boot in my machine,

Has anyone tried to running vmlinux-2.4.20-32 on 715/new (64/80/100)?
Also problems with HIL mouse/keyboard?

> I then got and
> installed "kernel-image-2.4.19-32" (to try to fix my HIL mouse/keyboard
> problem) but I now have a new problem: when I boot using the
> "vmlinux-2.4.19-32" kernel, things go well until I reach a point where I get
> a Debian GNU Linux blue screen with a gray menu that asks to "Choose your
> current network-environment !", and gives 2 choices: "Installation_default"
> and "Set_up_new_environment" and has 2 "buttons": "< OK >" and "< Cancel >".
> But, the keyboard (and mouse) are disabled, so I can't choose!!!!!

Reboot with 2.4.17, and fix up the network scripts. Or just delete the
whatever package provides that.
Can someone advise Jaime on which packages muck with keyboard settings
and how they should be set?
Or Is the FAQ answer this sufficiently?

> (Ie. I
> can't proceed or shutdown gracefully, because the networking hasn't yet been
> enabled - so I can't telnet to the machine - so my only choice is to pull
> the AC plug, because pressing the power button doesn't halt the system!)
> I believe that the "Choose your current network-environment !" blue screen
> occurs in my system because of a wrong default I took during the
> installation from the ISO disk (I didn't know any better!) and I used to get
> that same screen with "vmlinux-2.4.17-32".  But, in that case, I was able to
> make the proper choice with the keyboard, since it continued working OK up
> to that stage in the boot process.
> I may be wrong, but here is my theory of what's happening now:  the good
> news is that I think the new kernel ("vmlinux-2.4.19-32") must have "solved"
> the HIL/keyboard problem (but too early): ie. the HIL driver must have been
> enabled before the blue screen menu (since the keyboard behavior has changed
> with the new kernel), but the software behind that menu doesn't know how to
> use the new driver.  I also think that if I can somehow get rid of the blue
> screen (by changing an entry in some configuration file? - but which?) my
> problem would go away.  Since a previous user (Damien) reported that he got
> "kernel-image-2.4.19-32" to work for him in an HP 715 machine, I am guessing
> that he did not have that blue screen menu enabled - therefore no problem in
> his case.
> What do you think?

I don't know what the problem is. I haven't played with HIL drivers at all.

> Is there an easy way to disable the blue screen after booting to the old
> kernel?

Yes
1) figure out which script is presenting that menu.
   (eg "fgrep -i new_network /etc/init.d/*")
2) Run the script by hand to make sure it's the right one.
   (eg "/etc/init.d/netenv start")
3) "dpkg -S <scriptname>" to find the responsible package.
4) "apt-get remove <package>" to blow away the package.

hth,
grant


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Subject: [parisc-linux] Re: Bug#193261: glfer_0.3.2-1(hppa/unstable): FTBFS: assumes sys/io.h
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LaMont Jones wrote:
> severity 193261 important
> --
> On Wed, May 14, 2003 at 05:04:00PM +0200, Joop Stakenborg wrote:
> 
>>>There are many architectures where sys/io.h does not exist.
>>
>>Sorry about that. I will make it a i386-only package for now.
> 
> 
> Please don't do that.  This bug should be important, not serious,
> which makes it not release-critical.  (Sorry about that...)
> 
> Unless the package is truely i386 specific in _function_ (not
> compile-ability), or depends on such, it should be Architecture: any.
> 

Okay,

where do I find information on functions and devices available on other 
architectures, e.g. glfer uses inb, outb and ioperm (they are in 
sys/io.h) on the parallel/serial port.

> lamont
> 
> 

Thanks,
Joop


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Subject: [parisc-linux] RE: Help configuring an HIL mouse on an HP 715. - (Major disaster! - Am I back at ground level 0?)
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>> Is there an easy way to disable the blue screen after booting to the old
>> kernel?

> Yes
> 1) figure out which script is presenting that menu.
>   (eg "fgrep -i new_network /etc/init.d/*")
I assume that by "new_network" you really mean one of the strings that are
displayed in the Debian GNU Linux blue screen with the gray menu (such as
"Choose your current network-environment !", "Set_up_new_environment" or
"Installation_default") and that you are trying to find a file in the init.d
directory that contains that string.  Am I correct?
I tried all three, as follows (but no file was found with any of these
commands):
fgrep -i Set_up_new_environment /etc/init.d/*
fgrep -i Installation_default /etc/init.d/*
fgrep -i 'Choose your current network-environment !' /etc/init.d/*
So, here are my next questions:
1. Is init.d the only directory to search?
2. Can initialization scripts be stored elsewhere?
Best regards,
Jaime






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Hi,

bz@apollo:~> ldd /bin/cp
Inconsistency detected by ld.so: rtld.c: 879: dl_main: Assertion `_rtld_local._dl_rtld_map.l_libname' failed!
Inconsistency detected by ld.so: rtld.c: 879: dl_main: Assertion `_rtld_local._dl_rtld_map.l_libname' failed!
ldd: /lib/ld.so.1 exited with unknown exit code (127)


I have seen:
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-March/019601.html

ist this patch included in some cvs so that I can rebuild me glibc ?
Or any other proposals ?



I also have other probs with vim and tcpdump and most likely others
dumping core and producing a do_page_fault() dump with IAOQ: 4xxxxxxxx
on 2.5.-latest from cvs w/o last single ioctl commit.
but I also had seen these core dumps on 2.4.18-pa33 after last
dist-upgrade some days ago ...


do_page_fault() pid=732 command='vim' type=15 address=0x00000000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 40209e44 400ec15f 00000000
r04-07  40208644 0011c8b6 00000017 00126b30
r08-11  00000000 001695a8 00000000 00000000
r12-15  00000002 00000001 00000001 00070208
r16-19  ffffffff 00000000 00000000 40208644
r20-23  00000002 40208644 400ec11c 00000000
r24-27  00000000 0011c8b6 00000002 0010f634
r28-31  000abc78 0000011e faf009c0 4000a08f
sr0-3   00000016 00000016 00000000 00000016
sr4-7   00000016 00000016 00000016 00000016

IASQ: 00000016 00000016 IAOQ: 401d1b2f 401d1b33
 IIR: 0c601094    ISR: 00000016  IOR: 00000000
 CPU:        0   CR30: 146f4000 CR31: 102e1000
 ORIG_R28: 00126f48


any ideas ?

more infos available on request.

-- 
Greetings

Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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binutils-2.13.90.0.18 works ok.

See http://buildd.debian.org/fetch.php?&pkg=gcc-3.3&ver=1%3A3.3ds9-2&arch=hppa&stamp=1053264270&file=log&as=raw:

./xgcc -B./ -B/usr/hppa-linux/bin/ -isystem /usr/hppa-linux/include -isystem /usr/hppa-linux/sys-include -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include  -fPIC -DELF=1 -DLINUX=1 -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../src/gcc -I../../src/gcc/. -I../../src/gcc/config -I../../src/gcc/../include -DL_mulI -xassembler-with-cpp -c ../../src/gcc/config/pa/milli64.S -o libgcc/./_mulI.o
../../src/gcc/config/pa/milli64.S: Assembler messages:
../../src/gcc/config/pa/milli64.S:1779: Error: Undefined .EXPORT/.IMPORT argument (ignored): 
../../src/gcc/config/pa/milli64.S:1779: Error: Undefined .EXPORT/.IMPORT argument (ignored): millicode
make[5]: *** [libgcc/./_mulI.o] Error 1


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> binutils-2.13.90.0.18 works ok.
> 
> See http://buildd.debian.org/fetch.php?&pkg=gcc-3.3&ver=1%3A3.3ds9-2&arch=hppa&stamp=1053264270&file=log&as=raw:
> 
> ./xgcc -B./ -B/usr/hppa-linux/bin/ -isystem /usr/hppa-linux/include -isystem /usr/hppa-linux/sys-include -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include  -fPIC -DELF=1 -DLINUX=1 -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../src/gcc -I../../src/gcc/. -I../../src/gcc/config -I../../src/gcc/../include -DL_mulI -xassembler-with-cpp -c ../../src/gcc/config/pa/milli64.S -o libgcc/./_mulI.o
> ../../src/gcc/config/pa/milli64.S: Assembler messages:
> ../../src/gcc/config/pa/milli64.S:1779: Error: Undefined .EXPORT/.IMPORT argument (ignored): 
> ../../src/gcc/config/pa/milli64.S:1779: Error: Undefined .EXPORT/.IMPORT argument (ignored): millicode
> make[5]: *** [libgcc/./_mulI.o] Error 1

Did you part this to the binutils list?  A change has mucked up the
assembler's processing of .export.  Alan Modra would probably know what's
happened.

I've also noted that there are some new fails in the visibility tests
in a recent cvs version of binutils.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> bz@apollo:~> ldd /bin/cp
> Inconsistency detected by ld.so: rtld.c: 879: dl_main: Assertion `_rtld_local._dl_rtld_map.l_libname' failed!
> Inconsistency detected by ld.so: rtld.c: 879: dl_main: Assertion `_rtld_local._dl_rtld_map.l_libname' failed!
> ldd: /lib/ld.so.1 exited with unknown exit code (127)

http://sources.redhat.com/ml/libc-alpha/2003-05/msg00149.html

i just sent this to debian/glibc upstream yesterday.

> I also have other probs with vim and tcpdump and most likely others
> dumping core and producing a do_page_fault() dump with IAOQ: 4xxxxxxxx
> on 2.5.-latest from cvs w/o last single ioctl commit.
> but I also had seen these core dumps on 2.4.18-pa33 after last
> dist-upgrade some days ago ...

this is because of a gcc bug.
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=193207

once gcc-3.2 gets patched and glibc gets recompiled, you'll be ok.
otherwise, consider downgrading to libc6_2.3.1-16 and everything will be
ok.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Sun, 18 May 2003, Randolph Chung wrote:

Hi,

> http://sources.redhat.com/ml/libc-alpha/2003-05/msg00149.html
>
> i just sent this to debian/glibc upstream yesterday.

thanks for the information.


> > I also have other probs with vim and tcpdump and most likely others
> > dumping core and producing a do_page_fault() dump with IAOQ: 4xxxxxxxx
>
> this is because of a gcc bug.
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=193207
>
> once gcc-3.2 gets patched and glibc gets recompiled, you'll be ok.
> otherwise, consider downgrading to libc6_2.3.1-16 and everything will be
> ok.

what about the gcc-3.3 debs that are distributed ? If I rebuilt the
packages from source with them would they be ok ?

-- 
Greetings

Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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> > once gcc-3.2 gets patched and glibc gets recompiled, you'll be ok.
> > otherwise, consider downgrading to libc6_2.3.1-16 and everything will be
> > ok.
> 
> what about the gcc-3.3 debs that are distributed ? If I rebuilt the
> packages from source with them would they be ok ?

yes, that should work too.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Sun, 18 May 2003, Randolph Chung wrote:

> > > once gcc-3.2 gets patched and glibc gets recompiled, you'll be ok.
> > > otherwise, consider downgrading to libc6_2.3.1-16 and everything will be
> > > ok.
> >
> > what about the gcc-3.3 debs that are distributed ? If I rebuilt the
> > packages from source with them would they be ok ?
>
> yes, that should work too.

didn't :((

rebuild vim by hand with gcc 3.3 and it again segfaulted on startup :(
seems like this is a problem with shared libs ?

what else will I need to rebuilt ? or other question - how often are
packages re-built by debian package building system (how-ever this
works) ?

-- 
Greetings

Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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> didn't :((
> 
> rebuild vim by hand with gcc 3.3 and it again segfaulted on startup :(
> seems like this is a problem with shared libs ?

Did you rebuild or downgrade glibc as suggested?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> rebuild vim by hand with gcc 3.3 and it again segfaulted on startup :(
> seems like this is a problem with shared libs ?

don't rebuild vim, rebuild glibc :)

> what else will I need to rebuilt ? or other question - how often are
> packages re-built by debian package building system (how-ever this
> works) ?

it depends on when the next version is uploaded.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Sun, 18 May 2003, John David Anglin wrote:

> > didn't :((
> >
> > rebuild vim by hand with gcc 3.3 and it again segfaulted on startup :(
> > seems like this is a problem with shared libs ?
>
> Did you rebuild or downgrade glibc as suggested?

missed that point because the point in my first posting also was glibc
related and I thaught of these as two independend problems but both
are glibc related....  *grrml*
Well, going to see where I can get an up-to-date glibc source
(including the patches) from ...

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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> missed that point because the point in my first posting also was glibc
> related and I thaught of these as two independend problems but both
> are glibc related....  *grrml*
> Well, going to see where I can get an up-to-date glibc source
> (including the patches) from ...

apt-get source glibc

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Sun, 18 May 2003, Randolph Chung wrote:

Hi,

> > rebuild vim by hand with gcc 3.3 and it again segfaulted on startup :(
> > seems like this is a problem with shared libs ?
>
> don't rebuild vim, rebuild glibc :)

just to note for the further message; the machine (715/100) is running:
Linux apollo 2.5.69-pa1 #22 Sat May 17 16:48:19 UTC 2003 parisc GNU/Linux
gcc-3.3, binutils 2.14.90.0.1-0.1, libc6 2.3.1-17


ok, started glibc build over night and ...

--- cut ---
gcc-3.3 tst-pathopt.c -c -std=3Dgnu99 -O2 -Wall -Winline -Wstrict-prototype=
s -Wwrite-strings -fstrict-aliasing -g -pipe      -I../include -I. -I/u1/sr=
c/glibc/glibc-2.3.1/hppa-linux/obj/elf -I.. -I../libio  -I/u1/src/glibc/gli=
bc-2.3.1/hppa-linux/obj -I../sysdeps/hppa/elf -I../linuxthreads/sysdeps/uni=
x/sysv/linux/hppa -I../linuxthreads/sysdeps/unix/sysv/linux -I../linuxthrea=
ds/sysdeps/pthread -I../sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv=
 -I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/hppa -I../sysdeps=
/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sy=
sdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdep=
s/unix/sysv -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 =
-I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/d=
bl-64 -I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa=
 -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic  -nostd=
inc -isystem /usr/lib/gcc-lib/hppa-linux/3.3/include -isystem /usr/src/kern=
el-headers-2.5.69-pa1-hppa/include -D_LIBC_REENTRANT -include ../include/li=
bc-symbols.h   -DNOT_IN_libc=3D1    -o /u1/src/glibc/glibc-2.3.1/hppa-linux=
/obj/elf/tst-pathopt.o
make[4]: Target `tests' not remade because of errors.
make[4]: Leaving directory `/u1/src/glibc/glibc-2.3.1/glibc-2.3.1/elf'
make[3]: *** [elf/tests] Error 2
make[3]: Target `check' not remade because of errors.
make[3]: Leaving directory `/u1/src/glibc/glibc-2.3.1/glibc-2.3.1'
make[2]: *** [check] Error 2
make[2]: Leaving directory `/u1/src/glibc/glibc-2.3.1/hppa-linux/obj'
date >>/u1/src/glibc/glibc-2.3.1/log-test-hppa-linux
make[1]: Leaving directory `/u1/src/glibc/glibc-2.3.1'
touch /u1/src/glibc/glibc-2.3.1/hppa-linux/compiled-source
Segmentation fault
--- cut ---


my ssh connection had been terminated/crashed I woke up this morning
and after re-connection I had those in dmegs:

--- cut ---
do_page_fault() pid=3D268 command=3D'sshd' type=3D6 address=3D0x00000003

YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 401e3e44 40110d07 401e75b0
r04-07  401e75b0 401e5644 00000002 000fe588
r08-11  00000001 000f7f60 000fa438 000e7760
r12-15  00000001 000f7f60 000e7760 000e7760
r16-19  000e7760 00000004 00000004 401e5644
r20-23  00000060 00000000 0002ad9c faf01020
r24-27  00000004 00000001 401e75b0 000e7760
r28-31  00000001 00000000 faf00e40 0002e8d3
sr0-3   00000000 000004bf 00000000 000004bf
sr4-7   000004bf 000004bf 000004bf 000004bf

IASQ: 000004bf 000004bf IAOQ: 00000003 00000007
IIR: 34250fe0    ISR: 000004bf  IOR: 401df8ec
CPU:        0   CR30: 15b84000 CR31: 102e1000
ORIG_R28: 00000000

kernel BUG at mm/memory.c:1443!
Kernel addresses on the stack:
 [<1012414c>] printk+0x17c/0x1bc
 [<101059e8>] dump_stack+0x10/0x1c
 [<101492dc>] do_file_page+0x124/0x12c
 [<101493c0>] handle_mm_fault+0xdc/0x16c
 [<10104a6c>] do_page_fault+0x218/0x2a8
 [<10126ca4>] do_setitimer+0x208/0x238
 [<10106364>] handle_interruption+0x274/0x5b4
 [<1012be1c>] sys_alarm+0x28/0x44
 [<1010afe8>] syscall_exit+0x0/0x28
 [<1010a088>] intr_check_sig+0x0/0xc

kernel BUG at mm/memory.c:1443!
Kernel addresses on the stack:
 [<1012414c>] printk+0x17c/0x1bc
 [<101059e8>] dump_stack+0x10/0x1c
 [<101492dc>] do_file_page+0x124/0x12c
 [<101493c0>] handle_mm_fault+0xdc/0x16c
 [<101ec820>] sock_aio_write+0xc4/0xdc
 [<10104a6c>] do_page_fault+0x218/0x2a8
 [<1014b188>] unmap_vma_list+0x24/0x3c
 [<10106364>] handle_interruption+0x274/0x5b4
 [<10157310>] __fput+0x90/0xf4
 [<1015661c>] sys_write+0x4c/0x68
 [<1010afe8>] syscall_exit+0x0/0x28
 [<1010a088>] intr_check_sig+0x0/0xc
--- cut ---


then tried to shutdown and got an endless loop of those:

--- cut ---
kernel BUG at include/linux/swapops.h:68!
Kernel addresses on the stack:
 [<1012414c>] printk+0x17c/0x1bc
 [<101059e8>] dump_stack+0x10/0x1c
 [<10152790>] unuse_pmd+0x160/0x168
 [<101ce120>] blk_remove_plug+0x5c/0x84
 [<1015281c>] unuse_pgd+0x84/0x110
 [<10120168>] schedule+0x1cc/0x40c
 [<10152914>] unuse_vma+0x6c/0xf4
 [<10152a0c>] unuse_process+0x70/0xbc
 [<10152ce8>] try_to_unuse+0x240/0x620
 [<10153650>] sys_swapoff+0x1f8/0x384
 [<1014b6a4>] sys_munmap+0x50/0x6c
 [<1010afe8>] syscall_exit+0x0/0x28
 [<1010a088>] intr_check_sig+0x0/0xc

kernel BUG at include/linux/swapops.h:68!
Kernel addresses on the stack:
 [<1012414c>] printk+0x17c/0x1bc
 [<101059e8>] dump_stack+0x10/0x1c
 [<10152790>] unuse_pmd+0x160/0x168
 [<101ce120>] blk_remove_plug+0x5c/0x84
 [<1015281c>] unuse_pgd+0x84/0x110
 [<10120168>] schedule+0x1cc/0x40c
 [<10152914>] unuse_vma+0x6c/0xf4
 [<10152a0c>] unuse_process+0x70/0xbc
 [<10152ce8>] try_to_unuse+0x240/0x620
 [<10153650>] sys_swapoff+0x1f8/0x384
 [<1014b6a4>] sys_munmap+0x50/0x6c
 [<1010afe8>] syscall_exit+0x0/0x28
 [<1010a088>] intr_check_sig+0x0/0xc
--- cut ---

--=20
Greetings

Bjoern A. Zeeb=09=09=09=09bzeeb at Zabbadoz dot NeT
56 69 73 69 74=09=09=09=09http://www.zabbadoz.net/


From - Thu Nov 08 21:27:51 2018
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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: [parisc-linux] glibc pthreads actual threads?
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Xref: news.gmane.org gmane.linux.ports.parisc:18513

Hi all,

Sorry in advance if it is not the right place to put this question.

But I just start to learn more details about OS (A. Tanenbaum book) and
by the way try to understand a bit more about [p]threads.

I found a paper with examples (what I need much of all) and so I try by
the first one: basic_example.c (which I just change a very little for my
understanding)

/* for pthreads */
#include <pthread.h>
#include <stdio.h>

/* for getpid() */
#include <sys/types.h>
#include <unistd.h>

char * buf = "abcdefghijklmnopqrstuvwxyz";
int num_pthreads = 4;
int count = 60;
int fd = 1;

void * new_thread(void * arg)
{
    int i;
    pid_t PID=getpid();


    for (i = 0; i < count; i++) {
        fprintf(stderr, "PID: %d\n", PID);
	write(fd, arg, 1); write(fd, "\n", 1);
	sleep(1);
    }
    return(NULL);
}

main()
{
   pthread_t thread;
   int i;

   for (i = 0; i < num_pthreads; i++) {
	if (pthread_create(&thread, NULL, new_thread, (void *)(buf + i))) {
	   fprintf(stderr, "error creating a new thread \n");
	   exit(1);
	}
	pthread_detach(thread);
   }
   pthread_exit(NULL);
}

Which I compile as follow (gcc-3.3):
gcc -l pthread -o basic_example basic_example.c

That runs well (on my b2k running a 2.4.20-pa35 and libc6 2.3.1-17):
[...]
PID: 31360
a
PID: 31361
b
PID: 31362
c
PID: 31363
d
PID: 31360
a
PID: 31361
b
PID: 31362
c
PID: 31363
d
[...]

But notice  a very strange behaviour:
_the pid is not the same for each thread_ ??

Having just a small sunos 5.8 with gcc-3.2.2 (but with native libpthread)
the pb does not occurs?

Is it a limit of glibc (in general or in 2.3 only?) for all linux or only
hppa?

Thanks in advance for your attention,
    Joel



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] glibc pthreads actual threads?
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Xref: news.gmane.org gmane.linux.ports.parisc:18514

On Mon, May 19, 2003 at 06:27:41PM +0200, Joel Soete wrote:
> But notice  a very strange behaviour:
> _the pid is not the same for each thread_ ??
> 
> Having just a small sunos 5.8 with gcc-3.2.2 (but with native libpthread)
> the pb does not occurs?
> 
> Is it a limit of glibc (in general or in 2.3 only?) for all linux or only
> hppa?

it's a limit of your understanding ;-)  POSIX specifies both behaviours
are legitimate.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Xref: news.gmane.org gmane.linux.ports.parisc:18515

>
>it's a limit of your understanding ;-)

Normal: as mentioned I just started to learn...

>  POSIX specifies both behaviours
>are legitimate.
>
Thanks for those clarification,
    Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:18516

> my ssh connection had been terminated/crashed I woke up this morning
> and after re-connection I had those in dmegs:
> 
> --- cut ---
> do_page_fault() pid=268 command='sshd' type=6 address=0x00000003

You probably should try downgrading glibc and hope that completes
without a seg fault.

Carlos had mentioned problems with -17 about a month ago.  Don't
know if they have been fixed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Inconsistency detected by ld.so:.. / do_page_fault()
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> Carlos had mentioned problems with -17 about a month ago.  Don't
> know if they have been fixed.

Not yet. Problem seems to be in the emulation code for unwind find fde.
I'm working on stuff right now, but since we don't have an IPC
multiplexing call I'm sidetracked into writing semtimedop for our kernel
:)

c.



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Subject: Re: [parisc-linux] Inconsistency detected by ld.so:.. / do_page_fault()
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On Mon, 19 May 2003, John David Anglin wrote:

Hi,

> You probably should try downgrading glibc and hope that completes
> without a seg fault.
>
> Carlos had mentioned problems with -17 about a month ago.  Don't
> know if they have been fixed.

Thanks; I found the thread in my mbox'es.

What is this patch for ?
	glibc23-hppa-Rminkernel.dpatch


Further more it seems I need to read a bit more on debian package
building process in the howtos ;-(

...
make[4]: Target `tests' not remade because of errors.
make[4]: Leaving directory `/u1/src/glibc/glibc-2.3.1/glibc-2.3.1/elf'
make[3]: *** [elf/tests] Error 2
make[3]: Target `check' not remade because of errors.
make[3]: Leaving directory `/u1/src/glibc/glibc-2.3.1/glibc-2.3.1'
make[2]: *** [check] Error 2
make[2]: Leaving directory `/u1/src/glibc/glibc-2.3.1/hppa-linux/obj'
date >>/u1/src/glibc/glibc-2.3.1/log-test-hppa-linux
make[1]: Leaving directory `/u1/src/glibc/glibc-2.3.1'
touch /u1/src/glibc/glibc-2.3.1/hppa-linux/compiled-source
 debian/rules binary
Need root privileges
make: *** [/u1/src/glibc/glibc-2.3.1/hppa-linux/installed-binaries] Error 1




PS: again from building time (2.5.69-pa1) :

kernel BUG at include/linux/swapops.h:68!
Kernel addresses on the stack:
 [<1012414c>] printk+0x17c/0x1bc
 [<101059e8>] dump_stack+0x10/0x1c
 [<1014dbfc>] try_to_unmap_one+0x264/0x328
 [<1013e324>] __set_page_dirty_nobuffers+0x9c/0xac
 [<1014de24>] try_to_unmap+0x164/0x208
 [<10150fa0>] swap_writepage+0xac/0x10c
 [<10143f6c>] shrink_list+0x288/0x558
 [<101429d4>] __pagevec_release+0x20/0x30
 [<101443e4>] shrink_cache+0x1a8/0x3b8
 [<101450c4>] balance_pgdat+0x17c/0x1cc
 [<10145238>] kswapd+0x124/0x140
 [<10109c5c>] ret_from_kernel_thread+0x1c/0x24

kernel BUG at mm/rmap.c:343!
Kernel addresses on the stack:
 [<1012414c>] printk+0x17c/0x1bc
 [<101059e8>] dump_stack+0x10/0x1c
 [<1014dbdc>] try_to_unmap_one+0x244/0x328
 [<1013e324>] __set_page_dirty_nobuffers+0x9c/0xac
 [<1014de24>] try_to_unmap+0x164/0x208
 [<10150fa0>] swap_writepage+0xac/0x10c
 [<10143f6c>] shrink_list+0x288/0x558
 [<101429d4>] __pagevec_release+0x20/0x30
 [<101443e4>] shrink_cache+0x1a8/0x3b8
 [<101450c4>] balance_pgdat+0x17c/0x1cc
 [<10145238>] kswapd+0x124/0x140
 [<10109c5c>] ret_from_kernel_thread+0x1c/0x24

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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Subject: Re: [parisc-linux] Inconsistency detected by ld.so:.. / do_page_fault()
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Xref: news.gmane.org gmane.linux.ports.parisc:18519

> What is this patch for ?
> 	glibc23-hppa-Rminkernel.dpatch

Does two things:

1- Sets minimum required kernel version for glibc to run on.
2- Enables unwind_find_fde copat code.
 
> make[4]: Target `tests' not remade because of errors.
> make[4]: Leaving directory `/u1/src/glibc/glibc-2.3.1/glibc-2.3.1/elf'
> make[3]: *** [elf/tests] Error 2
> make[3]: Target `check' not remade because of errors.
> make[3]: Leaving directory `/u1/src/glibc/glibc-2.3.1/glibc-2.3.1'
> make[2]: *** [check] Error 2
> make[2]: Leaving directory `/u1/src/glibc/glibc-2.3.1/hppa-linux/obj'
> date >>/u1/src/glibc/glibc-2.3.1/log-test-hppa-linux
> make[1]: Leaving directory `/u1/src/glibc/glibc-2.3.1'
> touch /u1/src/glibc/glibc-2.3.1/hppa-linux/compiled-source
>  debian/rules binary
> Need root privileges
> make: *** [/u1/src/glibc/glibc-2.3.1/hppa-linux/installed-binaries] Error 1

Did you use -rfakeroot as a dpkg-buildpackage option?
 
> PS: again from building time (2.5.69-pa1) :

Can't help you there since I can't recreate the problem.

c.



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Subject: [parisc-linux] 2.4 and semtimedop - need kernel compat?
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pa,

I think I'm leaving the "filling in" of this to Randolph :)
For now it provides enough functionality for glibc to build and be all
happy and merry. Wether we strictly need compat code for semtimedop is
uknown.

Comments appreciated before checkin.

Willy handed out the new syscall number 228 for semtimedop.

c.

Index: arch/parisc/kernel/sys_parisc.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/sys_parisc.c,v
retrieving revision 1.14
diff -u -p -r1.14 sys_parisc.c
--- arch/parisc/kernel/sys_parisc.c	23 Nov 2001 21:54:28 -0000	1.14
+++ arch/parisc/kernel/sys_parisc.c	19 May 2003 19:57:48 -0000
@@ -256,3 +256,11 @@ int sys_shmctl_broken(int shmid, int cmd
 	return sys_shmctl (shmid, cmd, (struct shmid_ds *)buf);
 }
 
+/* 2.4 compat code required for IPC calls */
+asmlinkage long sys_semtimedop(int semid, struct sembuf *tsops,
+                                unsigned nsops, const struct timespec *timeout)
+{
+	/* FIXME: Need to implement compat? */
+	return -ENOSYS;
+}
+
Index: arch/parisc/kernel/sys_parisc32.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/sys_parisc32.c,v
retrieving revision 1.27
diff -u -p -r1.27 sys_parisc32.c
--- arch/parisc/kernel/sys_parisc32.c	14 Sep 2002 05:14:03 -0000	1.27
+++ arch/parisc/kernel/sys_parisc32.c	19 May 2003 19:57:48 -0000
@@ -3104,3 +3104,11 @@ asmlinkage long sys32_semctl_broken(int 
 	return sys_semctl (semid, semnum, cmd, arg);
 }
 
+/* 2.4 compat code required for IPC calls */
+asmlinkage long sys32_semtimedop(int semid, struct sembuf *tsops,
+				unsigned nsops, const struct timespec *timeout)
+{
+	/* FIXME: Possible 32/64 conversions required */
+	/* FIXME: Need to implement compat? */
+	return -ENOSYS;
+}
Index: arch/parisc/kernel/syscall.S
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/syscall.S,v
retrieving revision 1.78
diff -u -p -r1.78 syscall.S
--- arch/parisc/kernel/syscall.S	4 Aug 2002 22:57:47 -0000	1.78
+++ arch/parisc/kernel/syscall.S	19 May 2003 19:57:48 -0000
@@ -604,8 +604,31 @@ sys_call_table:
 #endif
 	ENTRY_SAME(gettid)             
 	ENTRY_SAME(readahead)          
-	ENTRY_SAME(tkill)
+	ENTRY_SAME(tkill)		/* 208 */
 
+	/* COMPAT semtimedop call requires the same syscall number
+	across kernel versions. */
+	
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)		/* 210 */
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)		/* 220 */
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_DIFF(semtimedop)		/* 228 */
 .end
 
 	/* Make sure nothing else is placed on this page */
Index: include/asm-parisc/unistd.h
===================================================================
RCS file: /var/cvs/linux/include/asm-parisc/unistd.h,v
retrieving revision 1.26
diff -u -p -r1.26 unistd.h
--- include/asm-parisc/unistd.h	4 Aug 2002 22:59:52 -0000	1.26
+++ include/asm-parisc/unistd.h	19 May 2003 19:57:50 -0000
@@ -702,6 +702,8 @@
 #define __NR_readahead          (__NR_Linux + 207)
 #define __NR_tkill              (__NR_Linux + 208)
 
+#define __NR_semtimedop         (__NR_Linux + 228)
+
 #define __NR_Linux_syscalls     208
 
 #define HPUX_GATEWAY_ADDR       0xC0000004


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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] 2.4 and semtimedop - need kernel compat?
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On Mon, May 19, 2003 at 04:12:24PM -0400, Carlos O'Donell wrote:
> 
> pa,
> 
> I think I'm leaving the "filling in" of this to Randolph :)
> For now it provides enough functionality for glibc to build and be all
> happy and merry. Wether we strictly need compat code for semtimedop is
> uknown.

Uh, you don't need to do anything.  If you call an unassigned syscall,
you get -ENOSYS.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Subject: [parisc-linux] Gentoo HPPA port
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Hi palinux'ers,

Someone just pointed me at a Gentoo HPPA install guide,

http://www.gentoo.org/doc/en/gentoo-hppa-install.xml

If any Gentoo people are paying attention you might want to keep the
list up to date with what you're doing so that someone can update the
parisc-linux.org website with any future announcements you'd like to
make.

-- 
Matt Taggart
taggart@fc.hp.com


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Subject: Re: [parisc-linux] Gentoo HPPA port
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I have Gentoo running on a few HPPA boxes (j5000 and a C180) Guy, the lead
HPPA porter for PA-Risc Gentoo has been working very hard to get a lot of
things working. We have Gentoo running very well in SMP as well as working
on GCC3.3 which is working rather well so far. There is usually someone in
irc.freenode.net #gentoo-hppa for help if anyone needs it....

-- 

  
Never be afraid to try something new.
Remember, Amateurs built the ark. Professionals built
the Titanic. 




On 5/19/03 6:33 PM, "Matt Taggart" <taggart@carmen.fc.hp.com> wrote:

> Hi palinux'ers,
> 
> Someone just pointed me at a Gentoo HPPA install guide,
> 
> http://www.gentoo.org/doc/en/gentoo-hppa-install.xml
> 
> If any Gentoo people are paying attention you might want to keep the
> list up to date with what you're doing so that someone can update the
> parisc-linux.org website with any future announcements you'd like to
> make.



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Subject: Re: [parisc-linux] 2.4 and semtimedop - need kernel compat?
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> Uh, you don't need to do anything.  If you call an unassigned syscall,
> you get -ENOSYS.

The idea was that it might be able to provide the required compat
functionality in 2.4. If we feel it's not possible then we can eliminate
all the entries in sys_parisc.c/sys32_parisc.c and leave the syscall as
ENTRY_SAME(nisyscall) in entry.S.

The glibc side of the code is done.

c.



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Subject: Re: [parisc-linux] RE: Dump module patche.
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>gcc version 3.0.4
>
>
>Joel Soete wrote:
>> Bruno,
>>
>>>>sorry, I don't remember this kind of error...did you try make mrproper
>>>
>> ???
>>
>>>>
>>>I think so as I prefer distclean?
>>>
>>>umm 2.4.20-pa32 is still available in ftp.p-l.org:/cvs so I will first
>grab
>>>it and apply patch. Then comeback to you :)
>>>
>>
>> It didn't help so I have to come back to you with severall questions:
>>
>> A. what is your compiler release gcc 3.0 3.2 3.3?
>>
>> B. I suspect also a different .config: may I ask your to compare with
mine?
>>
Hi Bruno,

Continuing my investigation, I reach now (with some known modif) to compile
the kernel with your patch and gcc-3.3 (as it seems that it became the
default in unstable) but to reach to compile dump_lbz2 (as static builtin)
i had to change following stuff into driver/dump/Makefile:

--- Makefile.orig	2003-05-20 14:50:46.000000000 +0200
+++ Makefile	2003-05-20 12:58:43.000000000 +0200
@@ -6,6 +6,7 @@
 # the dump directory.
 #

+O_TARGET        :=      dumpdrv.o
 export-objs	:=	dump_base.o

 list-multi	:=	dump.o
@@ -34,7 +35,8 @@
 	dump-objs		+= dump_parisc.o
 endif

+include $(TOPDIR)/Rules.make
+
 dump.o:	$(dump-objs)
 	$(LD) -r -o $@ $(dump-objs)

-include $(TOPDIR)/Rules.make

I do not realy understand make :(

Thanks for advise,
    Joel



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Subject: Re: [parisc-linux] 2.4 and semtimedop - need kernel compat?
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>The idea was that it might be able to provide the required compat
>functionality in 2.4. If we feel it's not possible then we can eliminate
>all the entries in sys_parisc.c/sys32_parisc.c and leave the syscall as
>ENTRY_SAME(nisyscall) in entry.S.
>
>The glibc side of the code is done.
>
Hi Carlos,

In the very last Andrea's patch 2.4.21rc2aa1.bz2, I read that Andrea already
back port this stuff :)

At a first glance, the job is also applied for hppa. Would you like that
I have
a look to see if it is applicable with your patch in p-l cvs tree?

Joel




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Hello,

I'm trying to figure it out how far we are from the most simple 64 bits
userspace I could think of. I read the list's archive and understand
that this is a subject that was beaten to death already (I'm also aware
of the doubtful usefulness of it). So, I'm planning to annoy you the
least I can :)

I think I have all sorted out (well, most of it, I think): for a simple
"hello world" app I need kernel support for execve, brk, write, mmap
(and a few others), a 64 bits toolchain and a libc (diet or the full
blown glibc :). Sure enough, the libc is the grayest area for me.

>From the archive, I read that Carlos O'Donell is working on this very
subject with promising results. So I setup to build a full blown glibc.
After tinkering with it a little I realized that sysdeps/hppa/hppa64
directory was missing. I couldn't find it anywhere (tried glibc cvs,
parisc cvs, debian). Could you help me with directions to where to find
it?

Thanks.

-- 
Hamilton Coutinho
hamilton@tteng.com.br
T&T Engenheiros Associados Ltda (http://www.tteng.com.br/)
Fone/Fax (51) 3224-8425
Porto Alegre - RS - Brasil


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From: Matthias Klose <doko@cs.tu-berlin.de>
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Subject: [parisc-linux] gcc-3.3 configuration
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For Debian GNU/Linux gcc-3.3 is currently configured with

	--with-sjlj-exceptions

to allow a binary compatible upgrade from gcc-3.2 to gcc-3.3. The
other Debian platform, where sjlj based exceptions changed to dwarf2
based exceptions is m68k, therefore the CC.

As there are no hppa/m68k distributions released using gcc-3.2,
compatibility with other released distros is not an issue. OTOH, I see
Gentoo and probably other distros built for hppa, first starting with
gcc-3.3, and maybe configured the standard way.

Is it worth (or needed) to strive for binary compatibility of hppa
based distributions, based on gcc-3.3 and glibc-2.3.x?

If yes, does the following approach work: Build a libstdc++5-3.3,
conflicting with libstdc++5 (including libstdc++ with the same soname)
and doing binary uploads for hppa for all libstdc++5 dependent
packages? (The same could be done for m68k, but the compatibility
argument doesn't hold as Debian seems to be the only m68k based
distro).

	Matthias



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On Wed, May 21, 2003 at 01:42:53AM +0200, Matthias Klose wrote:
> For Debian GNU/Linux gcc-3.3 is currently configured with
> 
> 	--with-sjlj-exceptions
> 
> to allow a binary compatible upgrade from gcc-3.2 to gcc-3.3. The
> other Debian platform, where sjlj based exceptions changed to dwarf2
> based exceptions is m68k, therefore the CC.

*sigh*.  I'm very conflicted over this.  On one hand, Debian is the de-facto
standard for PA-RISC/Linux binaries.  If another distro cares about
binary compatibility, they should follow Debian.

On the other hand, dwarf exceptions are clearly superior to sjlj.
We've never _released_ a distro compiled with 3.2 so we can break the
binary ABI without major repurcussions.

I'm not sure it's my call to make; I can see arguments on both sides.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Mer, 2003-05-21 at 01:08, Matthew Wilcox wrote:
> I'm not sure it's my call to make; I can see arguments on both sides.

Thats at least one of the reasons. Reputation capital is a wonderous
thing. Accept reality, you are the Linus of parisc Linux like it or not
8)



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Subject: Re: [parisc-linux] gcc-3.3 configuration
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> On Mer, 2003-05-21 at 01:08, Matthew Wilcox wrote:
> > I'm not sure it's my call to make; I can see arguments on both sides.
> 
> Thats at least one of the reasons. Reputation capital is a wonderous
> thing. Accept reality, you are the Linus of parisc Linux like it or not
> 8)

I agree.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> In the very last Andrea's patch 2.4.21rc2aa1.bz2, I read that Andrea already
> back port this stuff :)
> 
> At a first glance, the job is also applied for hppa. Would you like that
> I have a look to see if it is applicable with your patch in p-l cvs tree?

Seeing as how our glibc 2.3.2 is highly unstable and non-functional, it
won't help very much :(

It should be easy enough to connect our syscall to semtimedop when the
code is backported.

c.



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> From the archive, I read that Carlos O'Donell is working on this very
> subject with promising results. So I setup to build a full blown glibc.
> After tinkering with it a little I realized that sysdeps/hppa/hppa64
> directory was missing. I couldn't find it anywhere (tried glibc cvs,
> parisc cvs, debian). Could you help me with directions to where to find
> it?

I'd love to see those promising results :) I have a hard enough time
working on a 32-bit userspace. There is no 64-bit port that works. I
have some bits of code, but to tell you the truth it just isn't a
priority. Other things, like a working 32-bit glibc rank higher...
sorry.

If you would like to start by testing our 64-bit toolchain, please build
a 64-bit cross system (hppa -> hppa64) and get back to the list with
your results :)

c.


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> If yes, does the following approach work: Build a libstdc++5-3.3,
> conflicting with libstdc++5 (including libstdc++ with the same soname)
> and doing binary uploads for hppa for all libstdc++5 dependent
> packages? (The same could be done for m68k, but the compatibility
> argument doesn't hold as Debian seems to be the only m68k based
> distro).

Aside from the evilness of doing binNMUs of this magnitude, I doubt a
"transition" that doesn't change the SONAME will work. As soon as the
new libstdc++ is installed, every c++ app on the box will instantly
break. This means if anything happens e.g. to apt during the update, the
system will get into a very nasty state. I don't think this is worth it.

If we need to change the SONAME, then there's no binary compatibility
anyway...

As willy mentioned in his other email, if other distros want binary
compatibility, they should follow what Debian is doing (on hppa), since
Debian was there first :-)

my 2 cents,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] 2.4 and semtimedop - need kernel compat?
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>
>> In the very last Andrea's patch 2.4.21rc2aa1.bz2, I read that Andrea already
>> back port this stuff :)
>> 
>> At a first glance, the job is also applied for hppa. Would you like that
>> I have a look to see if it is applicable with your patch in p-l cvs tree?
>
>Seeing as how our glibc 2.3.2 is highly unstable and non-functional, it
>won't help very much :(
>
>It should be easy enough to connect our syscall to semtimedop when the
>code is backported.
>
Ok

J.

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Hi All,
>
>I am now runing a kernel 2.4.20-pa35 + lkcd bruno's patch with gcc-3.2.
>
>In the mean time I made a distupgrade which mainly update binutils from
2.13.90.0.18-1.7
>to 2.14.90.0.1-0.1 which make now failed the rebuild of the kernel:
>[...]
Still failed with binutils_2.14.90.0.2-0.1 :((

gcc -D__ASSEMBLY__ -traditional -D__KERNEL__ -I/usr/src/work/linux-2.4.21-rc2-pa35/include
 -c -o real2.o real2.S
real2.S: Assembler messages:
real2.S:126: Error: too many positional arguments
make[1]: *** [real2.o] Error 1

J.

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Subject: Re: [parisc-linux] last binutils-2.14.90.0.2-0.1[was-2.14.90.0.1] failled to build kernel
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> >I am now runing a kernel 2.4.20-pa35 + lkcd bruno's patch with gcc-3.2.
> >
> >In the mean time I made a distupgrade which mainly update binutils from
> 2.13.90.0.18-1.7
> >to 2.14.90.0.1-0.1 which make now failed the rebuild of the kernel:
> >[...]
> Still failed with binutils_2.14.90.0.2-0.1 :((
> 
> gcc -D__ASSEMBLY__ -traditional -D__KERNEL__ -I/usr/src/work/linux-2.4.21-rc2-pa35/include
>  -c -o real2.o real2.S
> real2.S: Assembler messages:
> real2.S:126: Error: too many positional arguments
> make[1]: *** [real2.o] Error 1

This probably is due to these changes:

2003-04-23  H.J. Lu <hjl@gnu.org>

        * app.c (do_scrub_chars): More checks for valid labels.

2003-04-22  H.J. Lu <hjl@gnu.org>

	* app.c (do_scrub_chars): Check for valid label.

	I reverted the relevant part of the above on the 2.14 branch.

2003-04-30  Alan Modra  <amodra@bigpond.net.au>

	* config/tc-hppa.c (hppa_symbol_chars): Revert 2003-04-28 change.
	* config/tc-hppa.h (tc_symbol_chars): Likewise.
	* config/tc-ppc.c (ppc_symbol_chars): Revert 2003-04-24 change.
	* config/tc-ppc.h (tc_symbol_chars): Likewise.
	* app.c (do_scrub_chars): Revert 2003-04-23 and 2003-04-22 changes.

These are still on the binutils trunk.  For the moment, I would advise
not using any binutils version which includes these changes.  While
the assembler probably will work ok with GCC, the semantics have
changed sufficiently that there may be problems with hand written
assembler files.

These were done nominally to improve the detection of labels on ia64.
However, the change to tc-hppa.c has affected the removal of extraneous
whitespace.  I think it also has affected the character set allowed to
be used for symbols.  If it has, I am going to ask for reversion of the
above changes.

Joel, could you send me offline a few lines from real2.S around line 126?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Xref: news.gmane.org gmane.linux.ports.parisc:18538

libc-alpha,

This is a cleaner HPPA linuxthreads implementation that stems from the
work that John David Anglin <dave.anglin@nrc-cnrc.gc.ca> and myself did 
to devise a self-aligning lock system that doesn't impose the 16-byte 
lock alignment restriction. Many thanks go to John for all his hard
work! 

This will also allow hppa to relax malloc alignment back to 8 (future
patches).

libc/linuxthreads/*

 sysdeps/hppa/pt-machine.h                    |   81 ++++++++++++++++++++++-----
 sysdeps/hppa/pspinlock.c                     |   29 ++++-----
 sysdeps/unix/sysv/linux/hppa/bits/initspin.h |   22 +++++--

 sysdeps/pthread/bits/libc-lock.h             |    6 +-
 sysdeps/pthread/bits/pthreadtypes.h          |    8 +-

 descr.h                                      |    2 
 pt-machine.c                                 |    4 +
 pthread.c                                    |   14 ++--
 spinlock.c                                   |   24 ++++----
 spinlock.h                                   |   26 ++++++--

 10 files changed, 148 insertions(+), 68 deletions(-)

Comments welcome. Patches tested on HPPA, i686.

c.
---

2003-05-19  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* linuxthreads/sysdeps/hppa/pt-machine.h
	(THREAD_SELF): Define.
	(INIT_THREAD_SELF): Define.
	(testandset): Use __ldcw_align.
	(lock_held): Define.
	(__ldcw): Define.
	(__ldcw_align): Define.
	(__load_and_clear): Define.
	* linuxthreads/sysdeps/hppa/pspinlock.c
	(__pthread_spin_lock): Use __ldcw_align.
	(__pthread_spin_trylock): Likewise.
	(__pthread_spin_unlock): Likewise.
	(__pthread_spin_init): Likewise.
	* linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h
	(__LT_SPINLOCK_INIT): Define.
	(__LT_SPINLOCK_ALT_INIT): Define.
	(__LOCK_INITIALIZER): Define.
	(__LOCK_ALT_INITIALIZER): Define.
	(__ATOMIC_INITIALIZER): Define.
	(__LT_INITIALIZER_NOT_ZERO): Define.

	* linuxthreads/sysdeps/pthread/bits/libc-lock.h:
	Use __LT_INITIALIZER_NOT_ZERO instead of __LT_SPINLOCK_INIT.
	* linuxthreads/sysdeps/pthread/bits/pthreadtypes.h:
	Add global default definition for __atomic_lock_t.
	(pthread_fastlock): Change __spinlock to type __atomic_lock_t.

	* linuxthreads/descr.h (pthread_atomic): change p_spinlock 
	to type __atomic_lock_t from int *.
	* linuxthreads/pt-machine.c: include pthread.h, change
	extern testandset prototype to use __atomic_lock_t * spinlock.
	* linuxthreads/pthread.c (__pthread_initialize_minimal): 
	Use __LT_INITIALIZER_NOT_ZERO.
	* linuxthreads/spinlock.c: use __pthread_lock_define_initialized
	macro to initialize wait_node_free_list_spinlock.
	(__pthread_acquire): change prototype to use 
	__atomic_lock_t * spinlock.
	(__pthread_release): Likewise.
	(__pthread_compare_and_swap): Likewise.
	(__pthread_acquire): Likewise.
	(__pthread_alt_lock): Use __LT_SPINLOCK_INIT to initialize locks.
	(__pthread_alt_timedlock): Likewise.
	* linuxthreads/spinlock.h: define default lock_held, 
	__pthread_lock_define_initialized, and modify prototypes for
	__pthread_compare_and_swap, compare_and_swap,
	compare_and_swap_with_release_semantics, compare_and_swap,
	__pthread_compare_and_swap to use __atomic_lock_t * spinlock.

diff -urN glibc-2.3.1.orig/linuxthreads/descr.h glibc-2.3.1/linuxthreads/descr.h
--- glibc-2.3.1.orig/linuxthreads/descr.h	2003-01-15 12:58:11.000000000 -0500
+++ glibc-2.3.1/linuxthreads/descr.h	2003-01-15 18:24:36.000000000 -0500
@@ -70,7 +70,7 @@
 /* Atomic counter made possible by compare_and_swap */
 struct pthread_atomic {
   long p_count;
-  int p_spinlock;
+  __atomic_lock_t p_spinlock;
 };
 
 
diff -urN glibc-2.3.1.orig/linuxthreads/pt-machine.c glibc-2.3.1/linuxthreads/pt-machine.c
--- glibc-2.3.1.orig/linuxthreads/pt-machine.c	2002-08-26 18:39:45.000000000 -0400
+++ glibc-2.3.1/linuxthreads/pt-machine.c	2003-01-15 18:24:36.000000000 -0500
@@ -19,7 +19,9 @@
 
 #define PT_EI
 
-extern long int testandset (int *spinlock);
+#include <pthread.h>
+
+extern long int testandset (__atomic_lock_t *spinlock);
 extern int __compare_and_swap (long int *p, long int oldval, long int newval);
 
 #include <pt-machine.h>
diff -urN glibc-2.3.1.orig/linuxthreads/pthread.c glibc-2.3.1/linuxthreads/pthread.c
--- glibc-2.3.1.orig/linuxthreads/pthread.c	2003-01-15 12:58:15.000000000 -0500
+++ glibc-2.3.1/linuxthreads/pthread.c	2003-01-15 18:24:36.000000000 -0500
@@ -296,9 +296,9 @@
   pthread_descr self;
 
   /* First of all init __pthread_handles[0] and [1] if needed.  */
-# if __LT_SPINLOCK_INIT != 0
-  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
-  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
 # endif
 # ifndef SHARED
   /* Unlike in the dynamically linked case the dynamic linker has not
@@ -366,7 +366,7 @@
 # endif
   /* self->p_start_args need not be initialized, it's all zero.  */
   self->p_userstack = 1;
-# if __LT_SPINLOCK_INIT != 0
+# ifdef __LT_INITIALIZER_NOT_ZERO 
   self->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER;
 # endif
   self->p_alloca_cutoff = __MAX_ALLOCA_CUTOFF;
@@ -380,9 +380,9 @@
 #else  /* USE_TLS */
 
   /* First of all init __pthread_handles[0] and [1].  */
-# if __LT_SPINLOCK_INIT != 0
-  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
-  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
 # endif
   __pthread_handles[0].h_descr = &__pthread_initial_thread;
   __pthread_handles[1].h_descr = &__pthread_manager_thread;
diff -urN glibc-2.3.1.orig/linuxthreads/spinlock.c glibc-2.3.1/linuxthreads/spinlock.c
--- glibc-2.3.1.orig/linuxthreads/spinlock.c	2002-08-29 06:32:19.000000000 -0400
+++ glibc-2.3.1/linuxthreads/spinlock.c	2003-01-15 18:24:36.000000000 -0500
@@ -24,9 +24,9 @@
 #include "spinlock.h"
 #include "restart.h"
 
-static void __pthread_acquire(int * spinlock);
+static void __pthread_acquire(__atomic_lock_t * spinlock);
 
-static inline void __pthread_release(int * spinlock)
+static inline void __pthread_release(__atomic_lock_t * spinlock)
 {
   WRITE_MEMORY_BARRIER();
   *spinlock = __LT_SPINLOCK_INIT;
@@ -269,11 +269,11 @@
 struct wait_node {
   struct wait_node *next;	/* Next node in null terminated linked list */
   pthread_descr thr;		/* The thread waiting with this node */
-  int abandoned;		/* Atomic flag */
+  __atomic_lock_t abandoned;	/* Atomic flag */
 };
 
 static long wait_node_free_list;
-static int wait_node_free_list_spinlock;
+__pthread_lock_define_initialized(static, wait_node_free_list_spinlock);
 
 /* Allocate a new node from the head of the free list using an atomic
    operation, or else using malloc if that list is empty.  A fundamental
@@ -376,7 +376,7 @@
       if (self == NULL)
 	self = thread_self();
 
-      wait_node.abandoned = 0;
+      wait_node.abandoned = __LT_SPINLOCK_INIT;
       wait_node.next = (struct wait_node *) lock->__status;
       wait_node.thr = self;
       lock->__status = (long) &wait_node;
@@ -402,7 +402,7 @@
       wait_node.thr = self;
       newstatus = (long) &wait_node;
     }
-    wait_node.abandoned = 0;
+    wait_node.abandoned = __LT_SPINLOCK_INIT;
     wait_node.next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -451,7 +451,7 @@
       if (self == NULL)
 	self = thread_self();
 
-      p_wait_node->abandoned = 0;
+      p_wait_node->abandoned = __LT_SPINLOCK_INIT;
       p_wait_node->next = (struct wait_node *) lock->__status;
       p_wait_node->thr = self;
       lock->__status = (long) p_wait_node;
@@ -474,7 +474,7 @@
       p_wait_node->thr = self;
       newstatus = (long) p_wait_node;
     }
-    p_wait_node->abandoned = 0;
+    p_wait_node->abandoned = __LT_SPINLOCK_INIT;
     p_wait_node->next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -574,7 +574,7 @@
     while (p_node != (struct wait_node *) 1) {
       int prio;
 
-      if (p_node->abandoned) {
+      if (lock_held(&p_node->abandoned)) {
 	/* Remove abandoned node. */
 #if defined TEST_FOR_COMPARE_AND_SWAP
 	if (!__pthread_has_cas)
@@ -662,7 +662,7 @@
 #if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP
 
 int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                               int * spinlock)
+                               __atomic_lock_t * spinlock)
 {
   int res;
 
@@ -699,7 +699,7 @@
    - When nanosleep() returns, we try again, doing MAX_SPIN_COUNT
      sched_yield(), then sleeping again if needed. */
 
-static void __pthread_acquire(int * spinlock)
+static void __pthread_acquire(__atomic_lock_t * spinlock)	
 {
   int cnt = 0;
   struct timespec tm;
diff -urN glibc-2.3.1.orig/linuxthreads/spinlock.h glibc-2.3.1/linuxthreads/spinlock.h
--- glibc-2.3.1.orig/linuxthreads/spinlock.h	2001-05-24 19:36:35.000000000 -0400
+++ glibc-2.3.1/linuxthreads/spinlock.h	2003-01-15 18:24:36.000000000 -0500
@@ -33,14 +33,28 @@
 #endif
 #endif
 
+/* Define lock_held for all arches that don't need a modified copy. */
+#ifndef __LT_INITIALIZER_NOT_ZERO
+# define lock_held(p) *(p)
+#endif
+
+/* Initliazers for possibly complex structures */
+#ifdef __LT_INITIALIZER_NOT_ZERO
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME = __LT_SPINLOCK_ALT_INIT
+#else
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME
+#endif
+
 #if defined(TEST_FOR_COMPARE_AND_SWAP)
 
 extern int __pthread_has_cas;
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   if (__builtin_expect (__pthread_has_cas, 1))
     return __compare_and_swap(ptr, oldval, newval);
@@ -58,7 +72,7 @@
 
 static inline int
 compare_and_swap_with_release_semantics (long * ptr, long oldval,
-					 long newval, int * spinlock)
+					 long newval, __atomic_lock_t * spinlock)
 {
   return __compare_and_swap_with_release_semantics (ptr, oldval,
 						    newval);
@@ -67,7 +81,7 @@
 #endif
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __compare_and_swap(ptr, oldval, newval);
 }
@@ -75,10 +89,10 @@
 #else
 
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __pthread_compare_and_swap(ptr, oldval, newval, spinlock);
 }
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pspinlock.c glibc-2.3.1/linuxthreads/sysdeps/hppa/pspinlock.c
--- glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pspinlock.c	2002-08-26 18:39:51.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/hppa/pspinlock.c	2003-01-15 18:26:51.000000000 -0500
@@ -24,15 +24,12 @@
 int
 __pthread_spin_lock (pthread_spinlock_t *lock)
 {
-  unsigned int val;
+	unsigned int *addr = __ldcw_align (lock);
+	
+	while (__ldcw (addr) == 0)
+		while (*addr == 0) ;
 
-  do
-    asm volatile ("ldcw %1,%0"
-		  : "=r" (val), "=m" (*lock)
-		  : "m" (*lock));
-  while (!val);
-
-  return 0;
+	return 0;
 }
 weak_alias (__pthread_spin_lock, pthread_spin_lock)
 
@@ -40,13 +37,9 @@
 int
 __pthread_spin_trylock (pthread_spinlock_t *lock)
 {
-  unsigned int val;
-
-  asm volatile ("ldcw %1,%0"
-		: "=r" (val), "=m" (*lock)
-		: "m" (*lock));
+	unsigned int *a = __ldcw_align (lock);
 
-  return val ? 0 : EBUSY;
+	return __ldcw (a) ? 0 : EBUSY;
 }
 weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
 
@@ -54,7 +47,9 @@
 int
 __pthread_spin_unlock (pthread_spinlock_t *lock)
 {
-  *lock = 1;
+  unsigned int *a = __ldcw_align (lock);
+
+  *a = 1;
   return 0;
 }
 weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
@@ -66,7 +61,9 @@
   /* We can ignore the `pshared' parameter.  Since we are busy-waiting
      all processes which can access the memory location `lock' points
      to can use the spinlock.  */
-  *lock = 1;
+  unsigned int *a = __ldcw_align (lock);
+
+  *a = 1;
   return 0;
 }
 weak_alias (__pthread_spin_init, pthread_spin_init)
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pt-machine.h glibc-2.3.1/linuxthreads/sysdeps/hppa/pt-machine.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pt-machine.h	2002-08-26 18:39:51.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/hppa/pt-machine.h	2003-01-15 18:24:49.000000000 -0500
@@ -22,13 +22,13 @@
 #ifndef _PT_MACHINE_H
 #define _PT_MACHINE_H   1
 
+#include <sys/types.h>
 #include <bits/initspin.h>
 
 #ifndef PT_EI
 # define PT_EI extern inline
 #endif
 
-extern long int testandset (int *spinlock);
 extern int __compare_and_swap (long int *p, long int oldval, long int newval);
 
 /* Get some notion of the current stack.  Need not be exactly the top
@@ -36,27 +36,80 @@
 #define CURRENT_STACK_FRAME  stack_pointer
 register char * stack_pointer __asm__ ("%r30");
 
+/* Get/Set thread-specific pointer.  We have to call into the kernel to
+ * modify it, but we can read it in user mode.  */
+
+#define THREAD_SELF __get_cr27()
+
+static inline struct _pthread_descr_struct * __get_cr27(void)
+{
+	long cr27;
+	asm("mfctl %%cr27, %0" : "=r" (cr27) : );
+	return (struct _pthread_descr_struct *) cr27;
+}
+
+#define INIT_THREAD_SELF(descr, nr) __set_cr27(descr)
+
+static inline void __set_cr27(struct _pthread_descr_struct * cr27)
+{
+	asm(
+		"ble	0xe0(%%sr2, %%r0)\n\t"
+		"copy	%0, %%r26"
+	 : : "r" (cr27) : "r26" );
+}
+
+/* We want the OS to assign stack addresses.  */
+#define FLOATING_STACKS	1
+#define ARCH_STACK_MAX_SIZE	8*1024*1024
 
 /* The hppa only has one atomic read and modify memory operation,
    load and clear, so hppa spinlocks must use zero to signify that
-   someone is holding the lock.  */
+   someone is holding the lock.  The address used for the ldcw
+   semaphore must be 16-byte aligned.  */
+#define __ldcw(a) ({ \
+  unsigned int __ret;							\
+  __asm__ __volatile__("ldcw 0(%2),%0"					\
+                      : "=r" (__ret), "=m" (*(a)) : "r" (a));		\
+  __ret;								\
+})
+
+/* Because malloc only guarantees 8-byte alignment for malloc'd data,
+   and GCC only guarantees 8-byte alignment for stack locals, we can't
+   be assured of 16-byte alignment for atomic lock data even if we
+   specify "__attribute ((aligned(16)))" in the type declaration.  So,
+   we use a struct containing an array of four ints for the atomic lock
+   type and dynamically select the 16-byte aligned int from the array
+   for the semaphore.  */
+#define __PA_LDCW_ALIGNMENT 16
+#define __ldcw_align(a) ({ \
+  unsigned int __ret = (unsigned int) a;				\
+  if ((__ret & ~(__PA_LDCW_ALIGNMENT - 1)) < (unsigned int) a)		\
+    __ret = (__ret & ~(__PA_LDCW_ALIGNMENT - 1)) + __PA_LDCW_ALIGNMENT; \
+  (unsigned int *) __ret;						\
+})
 
-#define xstr(s) str(s)
-#define str(s) #s
 /* Spinlock implementation; required.  */
-PT_EI long int
-testandset (int *spinlock)
+PT_EI int
+__load_and_clear (__atomic_lock_t *spinlock)
 {
-  int ret;
+  unsigned int *a = __ldcw_align (spinlock);
 
-  __asm__ __volatile__(
-       "ldcw 0(%2),%0"
-       : "=r"(ret), "=m"(*spinlock)
-       : "r"(spinlock));
+  return __ldcw (a);
+}
 
-  return ret == 0;
+/* Emulate testandset */
+PT_EI long int
+testandset (__atomic_lock_t *spinlock)
+{
+  return (__load_and_clear(spinlock) == 0);
 }
-#undef str
-#undef xstr
 
+PT_EI int
+lock_held (__atomic_lock_t *spinlock)
+{
+  unsigned int *a = __ldcw_align (spinlock);
+
+  return *a == 0;
+}
+		
 #endif /* pt-machine.h */
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/libc-lock.h glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/libc-lock.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/libc-lock.h	2003-01-15 12:58:35.000000000 -0500
+++ glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/libc-lock.h	2003-01-15 18:24:36.000000000 -0500
@@ -71,12 +71,12 @@
    initialized locks must be set to one due to the lack of normal
    atomic operations.) */
 
-#if __LT_SPINLOCK_INIT == 0
+#ifdef __LT_INITIALIZER_NOT_ZERO
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME;
+  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
 #else
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
+  CLASS __libc_lock_t NAME;
 #endif
 
 #define __libc_rwlock_define_initialized(CLASS,NAME) \
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	2003-01-15 12:58:35.000000000 -0500
+++ glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	2003-01-15 18:24:36.000000000 -0500
@@ -22,12 +22,14 @@
 #define __need_schedparam
 #include <bits/sched.h>
 
+typedef int __atomic_lock_t;
+
 /* Fast locks (not abstract because mutexes and conditions aren't abstract). */
 struct _pthread_fastlock
 {
-  long int __status;   /* "Free" or "taken" or head of waiting list */
-  int __spinlock;      /* Used by compare_and_swap emulation. Also,
-			  adaptive SMP lock stores spin count here. */
+  long int __status;		/* "Free" or "taken" or head of waiting list */
+  __atomic_lock_t __spinlock;	/* Used by compare_and_swap emulation. Also,
+				   adaptive SMP lock stores spin count here. */
 };
 
 #ifndef _PTHREAD_DESCR_DEFINED
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h	2002-08-26 18:39:55.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h	2003-01-15 18:24:49.000000000 -0500
@@ -17,11 +17,23 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+/* Initialize global spinlocks without cast, generally macro wrapped */
+#define __LT_SPINLOCK_ALT_INIT { { 1, 1, 1, 1, } }
+
 /* Initial value of a spinlock.  PA-RISC only implements atomic load
    and clear so this must be non-zero. */
-#define __LT_SPINLOCK_INIT 1
+#define __LT_SPINLOCK_INIT ((__atomic_lock_t) __LT_SPINLOCK_ALT_INIT)
+
+/* Macros for lock initializers, not using the above definition.
+   The above definition is not used in the case that static initializers
+   use this value. */
+#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_ALT_INIT }
+#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_ALT_INIT }
+
+/* Used to initialize _pthread_fastlock's in non-static case */
+#define __LOCK_ALT_INITIALIZER ((struct _pthread_fastlock){ 0, __LT_SPINLOCK_INIT })
+
+/* Tell the rest of the code that the initializer is non-zero without
+   explaining it's internal structure */
+#define __LT_INITIALIZER_NOT_ZERO
 
-/* Macros for lock initializers, using the above definition. */
-#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
-#define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
-#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT }


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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Carlos O'Donell wrote:

> This is a cleaner HPPA linuxthreads implementation that stems from the
> work that John David Anglin <dave.anglin@nrc-cnrc.gc.ca> and myself did 
> to devise a self-aligning lock system that doesn't impose the 16-byte 
> lock alignment restriction.

The indentation and general style is wrong in many places.


> diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pspinlock.c glibc-2.3.1/linuxthreads/sysdeps/hppa/pspinlock.c
> --- glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pspinlock.c	2002-08-26 18:39:51.000000000 -0400
> +++ glibc-2.3.1/linuxthreads/sysdeps/hppa/pspinlock.c	2003-01-15 18:26:51.000000000 -0500
> @@ -24,15 +24,12 @@
>  int
>  __pthread_spin_lock (pthread_spinlock_t *lock)
>  {
> -  unsigned int val;
> +	unsigned int *addr = __ldcw_align (lock);
> +	
> +	while (__ldcw (addr) == 0)
> +		while (*addr == 0) ;

This is plain wrong.  addr at least must be volatile.

And I don't understand why you removed the asm code.  These pieces of
code are prime candidates for hand-coding.


> +static inline struct _pthread_descr_struct * __get_cr27(void)
> +{
> +	long cr27;
> +	asm("mfctl %%cr27, %0" : "=r" (cr27) : );
> +	return (struct _pthread_descr_struct *) cr27;
> +}

Not a real problem, but you should get gcc to recognize this reqister
and perform the loading.

- -- 
- --------------.                        ,-.            444 Castro Street
Ulrich Drepper \    ,-----------------'   \ Mountain View, CA 94041 USA
Red Hat         `--' drepper at redhat.com `---------------------------
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On Wed, May 21, 2003 at 01:08:54AM +0100, Matthew Wilcox wrote:
> I'm not sure it's my call to make; I can see arguments on both sides.

Having no clue about dwarf vs sjlj (or whatever), I have to trust
*someone* to make the right call. If it's clearly the right direction,
then figure out how to get there without breaking everything and
make use of your "reputation capital".

grant


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>On Mon, May 19, 2003 at 06:27:41PM +0200, Joel Soete wrote:
>> But notice  a very strange behaviour:
>> _the pid is not the same for each thread_ ??
>> 
>> Having just a small sunos 5.8 with gcc-3.2.2 (but with native libpthread)
>> the pb does not occurs?
>> 
>> Is it a limit of glibc (in general or in 2.3 only?) for all linux or only
>> hppa?
>
>it's a limit of your understanding ;-)  POSIX specifies both behaviours
>are legitimate.
>
Just for remind and for those who also have this kind of philophical pb :-)).
In fact following test, an ardent discuss born here between high level system
engineer and one of them help me to find this interesting link:
<http://www.onlamp.com/pub/a/onlamp/2002/11/07/linux_threads.html>

    Joel


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> Aside from the evilness of doing binNMUs of this magnitude, I doubt a
> "transition" that doesn't change the SONAME will work. As soon as the
> new libstdc++ is installed, every c++ app on the box will instantly
> break. This means if anything happens e.g. to apt during the update, the
> system will get into a very nasty state. I don't think this is worth it.
> 
> If we need to change the SONAME, then there's no binary compatibility
> anyway...
> 
> As willy mentioned in his other email, if other distros want binary
> compatibility, they should follow what Debian is doing (on hppa), since
> Debian was there first :-)

*Plants flag here*

c.



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Ulrich,

> The indentation and general style is wrong in many places.

I'll clean this up today and break it into three chunks for even easier
digestion.
 
> >  __pthread_spin_lock (pthread_spinlock_t *lock)
> >  {
> > -  unsigned int val;
> > +	unsigned int *addr = __ldcw_align (lock);
> > +	
> > +	while (__ldcw (addr) == 0)
> > +		while (*addr == 0) ;
> 
> This is plain wrong.  addr at least must be volatile.

__ldcw is volatile.

Are you suggesting that it is prehaps fragile based on gcc's 
choice of optimization?

> And I don't understand why you removed the asm code.  These pieces of
> code are prime candidates for hand-coding.

__ldcw is still assembly only. __ldcw_align is a macro. In truth I
wanted a functioning implementation first, optimization is a close
second. Though a full assembly version would fix gcc from reordering
anything.
 
> > +static inline struct _pthread_descr_struct * __get_cr27(void)
> > +{
> > +	long cr27;
> > +	asm("mfctl %%cr27, %0" : "=r" (cr27) : );
> > +	return (struct _pthread_descr_struct *) cr27;
> > +}
> 
> Not a real problem, but you should get gcc to recognize this reqister
> and perform the loading.

This should get addressed as TLS is implemented for HPPA. I will be
attending gcc-summit in hopes to discuss this with my colleagues.

c.



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On Thu, May 22, 2003 at 11:09:02AM -0400, Carlos O'Donell wrote:
> > > +	while (__ldcw (addr) == 0)
> > > +		while (*addr == 0) ;
> > 
> > This is plain wrong.  addr at least must be volatile.
> 
> __ldcw is volatile.

yes, but *addr can be optimized out of the while loop.

> Are you suggesting that it is prehaps fragile based on gcc's 
> choice of optimization?

That's another issue. OTOH, I doubt gcc will ever mangle this
fairly short chunk of code. Maybe post the gcc asm output and
see if anyone can improve it.

grant


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> On Thu, May 22, 2003 at 11:09:02AM -0400, Carlos O'Donell wrote:
> > > > +	while (__ldcw (addr) == 0)
> > > > +		while (*addr == 0) ;
> > > 
> > > This is plain wrong.  addr at least must be volatile.
> > 
> > __ldcw is volatile.
> 
> yes, but *addr can be optimized out of the while loop.

Yes, you are correct.  This is the code from the inner loop:

  1c:   0f 40 10 93     ldw 0(,r26),r19
  20:   86 60 3f f5     cmpib,= 0,r19,20 <__pthread_spin_lock+0x20>
  24:   08 00 02 40     nop

Don't know how I missied that :(

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Thu, May 22, 2003 at 11:53:44AM -0400, John David Anglin wrote:
> Don't know how I missied that :(

If you have a test for this, it's not contending for the lock.
Writing a test for this would probably be a good thing if
there isn't already one. Note there is no fairness and a
test would need to be sensitive to that.

grant


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> If you have a test for this, it's not contending for the lock.
> Writing a test for this would probably be a good thing if
> there isn't already one. Note there is no fairness and a
> test would need to be sensitive to that.

Agreed.  The libc suite would probably be the best place for
such a test ;-)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Hi  ,=20
about  install Debian-hppa on HP C3750 Pa-risc .

http://www.hp.com/workstations/risc/c3750/faq.html

=46rom the documentation I see that the arch is supported ( C class ) .

http://www.parisc-linux.org/release-0.9/systems-093.html

Someone has tried to make to work the HP A7789 Fire GL-UX=20
video card on board .=20

Thank's in advance .

=2D-Dave_S


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On Fri, May 23, 2003 at 10:45:38AM +0200, Dave Sasselli wrote:
> Hi  , 
> about  install Debian-hppa on HP C3750 Pa-risc .
> 
> http://www.hp.com/workstations/risc/c3750/faq.html
> 
> From the documentation I see that the arch is supported ( C class ) .
> 
> http://www.parisc-linux.org/release-0.9/systems-093.html

This web page is obsolete.
We've kept the web pages around just for reference.

> Someone has tried to make to work the HP A7789 Fire GL-UX 
> video card on board . 

Are you asking if someone has been able to make this work?
I think the answer is no.
Lack of HW documentation is a problem for all the FX* cards.

grant


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Is the only way i can view the console via a MUX/RS232 adapter, or is
there another way?

Ben
     "BASIC programmers never die, they GOSUB and dont't RETURN."       



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] HP A7789 Fire GL-UX
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On Fri, May 23, 2003 at 10:43:22AM -0600, Grant Grundler wrote:
> > Someone has tried to make to work the HP A7789 Fire GL-UX 
> > video card on board . 
> 
> Are you asking if someone has been able to make this work?
> I think the answer is no.
> Lack of HW documentation is a problem for all the FX* cards.

Surely the FireGL card isn't an FX* card but a Radeon?  If so, maybe
ATI have released some docs on it ... Anyone know?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Stan Sieler <sieler@allegro.com>
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Re:

> Is the only way i can view the console via a MUX/RS232 adapter, or is
> there another way?

AFAIK, that's the only way.
 
-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com


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From: "Martin K. Petersen" <mkp@mkp.net>
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Subject: Re: [parisc-linux] HP A7789 Fire GL-UX
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>>>>> "Matthew" == Matthew Wilcox <willy@debian.org> writes:

Matthew> On Fri, May 23, 2003 at 10:43:22AM -0600, Grant Grundler wrote:
>> > Someone has tried to make to work the HP A7789 Fire GL-UX > video
>> card on board .
>> 
>> Are you asking if someone has been able to make this work?  I think
>> the answer is no.  Lack of HW documentation is a problem for all
>> the FX* cards.

Matthew> Surely the FireGL card isn't an FX* card but a Radeon?  If
Matthew> so, maybe ATI have released some docs on it ... Anyone know?

FireGL is ATI's high-end chip offering.  The drivers are binary only.

-- 
Martin K. Petersen      http://mkp.net/



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> On Fri, May 23, 2003 at 10:43:22AM -0600, Grant Grundler wrote:
> > > Someone has tried to make to work the HP A7789 Fire GL-UX
> > > video card on board .
> >
> > Are you asking if someone has been able to make this work?
> > I think the answer is no.
> > Lack of HW documentation is a problem for all the FX* cards.
>
> Surely the FireGL card isn't an FX* card but a Radeon?  If so, maybe
> ATI have released some docs on it ... Anyone know?

Ati supports only binary driver for intel.  
I could use the driver of xfree86 for radeon otherwise the only way is the 
frame buffer .

--Dave_S


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Dave Sasselli wrote:

>>On Fri, May 23, 2003 at 10:43:22AM -0600, Grant Grundler wrote:
>>    
>>
>>>>Someone has tried to make to work the HP A7789 Fire GL-UX
>>>>video card on board .
>>>>        
>>>>
>>>Are you asking if someone has been able to make this work?
>>>I think the answer is no.
>>>Lack of HW documentation is a problem for all the FX* cards.
>>>      
>>>
>>Surely the FireGL card isn't an FX* card but a Radeon?  If so, maybe
>>ATI have released some docs on it ... Anyone know?
>>    
>>
>
>Ati supports only binary driver for intel.  
>
AFAIK ati would be supported in 2.4.21?

So : 
<http://lists.parisc-linux.org/pipermail/parisc-linux/2003-April/019808.html>
I wouldn't have more chance to make work this Ati Rage model?


>I could use the driver of xfree86 for radeon otherwise the only way is the 
>frame buffer .
>
>  
>
Thanks,
    Joel





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Xref: news.gmane.org gmane.linux.ports.parisc:18557

Hi,

Who knows if the Promise Ultra 100 TX2 PCI card works under PA-Risc
Linux ? I own a B132L+ and I am interested in adding IDE drive for storage
(because IDE is cheaper than SCSI for mass storage).

Thanks
-------
Bad Max
========
Amiga User
GNU User
WWW: perso.club-internet.fr/badmax



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From: "Siraj 'Sid' Rakhada" <sid@mindless.co.uk>
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Subject: [parisc-linux] RAID Boot Howto question...
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Xref: news.gmane.org gmane.linux.ports.parisc:18558

Hi,

I'm installing Debian 3.0r1 on a K370 (via a testing netinst CD due to
issues with PDC or something - I'm not too hot on this stuff yet!). It's
currently sitting on the 'partition a hard disk prompt' while I read up
some more on the RAID stuff...

Which leads me to a question about the RAID howto which is listed on the FAQ.

Basically the author (Martin Petersen) writes at the end of step 7 that he
made a modification to PALO to allow it to boot from RAID partitions...
The HOWTO is dated 14th Jan 2003...

Anyway, I was looking to find information on PALO now, to see if this
change has been incorporated onto a released version - and I think it has
- due to this: http://packages.qa.debian.org/p/palo/news/1.html - also
dated 14th Jan 2003.

Would it be a good idea to list in the RAID boot HOWTO that 'version 1.2
of PALO incorporates the change, and is available in debian/unstable' ?

Best regards,

Sid




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Xref: news.gmane.org gmane.linux.ports.parisc:18559

CONFIG_BLK_DEV_LVM is gone, but there is still some associated code.
This is the parisc part.

diff -u --recursive --new-file -X /linux/dontdiff a/arch/parisc/kernel/ioctl32.c b/arch/parisc/kernel/ioctl32.c
--- a/arch/parisc/kernel/ioctl32.c	Tue May 27 00:31:01 2003
+++ b/arch/parisc/kernel/ioctl32.c	Tue May 27 01:04:17 2003
@@ -1785,443 +1785,6 @@
         return -EINVAL;
 }
 
-#if defined(CONFIG_BLK_DEV_LVM) || defined(CONFIG_BLK_DEV_LVM_MODULE)
-/* Ugh, LVM. Pitty it was not cleaned up before accepted :((. */
-typedef struct {
-	uint8_t vg_name[NAME_LEN];
-	uint32_t vg_number;
-	uint32_t vg_access;
-	uint32_t vg_status;
-	uint32_t lv_max;
-	uint32_t lv_cur;
-	uint32_t lv_open;
-	uint32_t pv_max;
-	uint32_t pv_cur;
-	uint32_t pv_act;
-	uint32_t dummy;
-	uint32_t vgda;
-	uint32_t pe_size;
-	uint32_t pe_total;
-	uint32_t pe_allocated;
-	uint32_t pvg_total;
-	u32 proc;
-	u32 pv[ABS_MAX_PV + 1];
-	u32 lv[ABS_MAX_LV + 1];
-    	uint8_t vg_uuid[UUID_LEN+1];	/* volume group UUID */
-	uint8_t dummy1[200];
-} vg32_t;
-
-typedef struct {
-	uint8_t id[2];
-	uint16_t version;
-	lvm_disk_data_t pv_on_disk;
-	lvm_disk_data_t vg_on_disk;
-	lvm_disk_data_t pv_namelist_on_disk;
-	lvm_disk_data_t lv_on_disk;
-	lvm_disk_data_t pe_on_disk;
-	uint8_t pv_name[NAME_LEN];
-	uint8_t vg_name[NAME_LEN];
-	uint8_t system_id[NAME_LEN];
-	kdev_t pv_dev;
-	uint32_t pv_number;
-	uint32_t pv_status;
-	uint32_t pv_allocatable;
-	uint32_t pv_size;
-	uint32_t lv_cur;
-	uint32_t pe_size;
-	uint32_t pe_total;
-	uint32_t pe_allocated;
-	uint32_t pe_stale;
-	u32 pe;
-	u32 inode;
-	uint8_t pv_uuid[UUID_LEN+1];
-} pv32_t;
-
-typedef struct {
-	char lv_name[NAME_LEN];
-	u32 lv;
-} lv_req32_t;
-
-typedef struct {
-	u32 lv_index;
-	u32 lv;
-	/* Transfer size because user space and kernel space differ */
-	uint16_t size;
-} lv_status_byindex_req32_t;
-
-typedef struct {
-	compat_dev_t	dev;
-	u32		lv;
-} lv_status_bydev_req32_t;
-
-typedef struct {
-	uint8_t lv_name[NAME_LEN];
-	kdev_t old_dev;
-	kdev_t new_dev;
-	u32 old_pe;
-	u32 new_pe;
-} le_remap_req32_t;
-
-typedef struct {
-	char pv_name[NAME_LEN];
-	u32 pv;
-} pv_status_req32_t;
-
-typedef struct {
-	uint8_t lv_name[NAME_LEN];
-	uint8_t vg_name[NAME_LEN];
-	uint32_t lv_access;
-	uint32_t lv_status;
-	uint32_t lv_open;
-	kdev_t lv_dev;
-	uint32_t lv_number;
-	uint32_t lv_mirror_copies;
-	uint32_t lv_recovery;
-	uint32_t lv_schedule;
-	uint32_t lv_size;
-	u32 lv_current_pe;
-	uint32_t lv_current_le;
-	uint32_t lv_allocated_le;
-	uint32_t lv_stripes;
-	uint32_t lv_stripesize;
-	uint32_t lv_badblock;
-	uint32_t lv_allocation;
-	uint32_t lv_io_timeout;
-	uint32_t lv_read_ahead;
-	/* delta to version 1 starts here */
-	u32 lv_snapshot_org;
-	u32 lv_snapshot_prev;
-	u32 lv_snapshot_next;
-	u32 lv_block_exception;
-	uint32_t lv_remap_ptr;
-	uint32_t lv_remap_end;
-	uint32_t lv_chunk_size;
-	uint32_t lv_snapshot_minor;
-	char dummy[200];
-} lv32_t;
-
-typedef struct {
-	u32 hash[2];
-	u32 rsector_org;
-	kdev_t rdev_org;
-	u32 rsector_new;
-	kdev_t rdev_new;
-} lv_block_exception32_t;
-
-static void put_lv_t(lv_t *l)
-{
-	if (l->lv_current_pe) vfree(l->lv_current_pe);
-	if (l->lv_block_exception) vfree(l->lv_block_exception);
-	kfree(l);
-}
-
-static lv_t *get_lv_t(u32 p, int *errp)
-{
-	int err, i;
-	u32 ptr1, ptr2;
-	size_t size;
-	lv_block_exception32_t *lbe32;
-	lv_block_exception_t *lbe;
-	lv32_t *ul = (lv32_t *)A(p);
-	lv_t *l = (lv_t *) kmalloc(sizeof(lv_t), GFP_KERNEL);
-
-	if (!l) {
-		*errp = -ENOMEM;
-		return NULL;
-	}
-	memset(l, 0, sizeof(lv_t));
-	err = copy_from_user(l, ul, (long)&((lv32_t *)0)->lv_current_pe);
-	err |= __copy_from_user(&l->lv_current_le, &ul->lv_current_le,
-				((long)&ul->lv_snapshot_org) - ((long)&ul->lv_current_le));
-	err |= __copy_from_user(&l->lv_remap_ptr, &ul->lv_remap_ptr,
-				((long)&ul->dummy[0]) - ((long)&ul->lv_remap_ptr));
-	err |= __get_user(ptr1, &ul->lv_current_pe);
-	err |= __get_user(ptr2, &ul->lv_block_exception);
-	if (err) {
-		kfree(l);
-		*errp = -EFAULT;
-		return NULL;
-	}
-	if (ptr1) {
-		size = l->lv_allocated_le * sizeof(pe_t);
-		l->lv_current_pe = vmalloc(size);
-		if (l->lv_current_pe)
-			err = copy_from_user(l->lv_current_pe, (void *)A(ptr1), size);
-	}
-	if (!err && ptr2) {
-		size = l->lv_remap_end * sizeof(lv_block_exception_t);
-		l->lv_block_exception = lbe = vmalloc(size);
-		if (l->lv_block_exception) {
-			lbe32 = (lv_block_exception32_t *)A(ptr2);
-			memset(lbe, 0, size);
-			for (i = 0; i < l->lv_remap_end; i++, lbe++, lbe32++) {
-				err |= get_user(lbe->rsector_org, &lbe32->rsector_org);
-				err |= __get_user(lbe->rdev_org, &lbe32->rdev_org);
-				err |= __get_user(lbe->rsector_new, &lbe32->rsector_new);
-				err |= __get_user(lbe->rdev_new, &lbe32->rdev_new);
-			}
-		}
-	}
-	if (err || (ptr1 && !l->lv_current_pe) || (ptr2 && !l->lv_block_exception)) {
-		if (!err)
-			*errp = -ENOMEM;
-		else
-			*errp = -EFAULT;
-		put_lv_t(l);
-		return NULL;
-	}
-	return l;
-}
-
-static int copy_lv_t(u32 ptr, lv_t *l)
-{
-	int err;
-	lv32_t *ul = (lv32_t *)A(ptr);
-	u32 ptr1;
-	size_t size;
-
-	err = get_user(ptr1, &ul->lv_current_pe);
-	if (err)
-		return -EFAULT;
-	err = copy_to_user(ul, l, (long)&((lv32_t *)0)->lv_current_pe);
-	err |= __copy_to_user(&ul->lv_current_le, &l->lv_current_le,
-				((long)&ul->lv_snapshot_org) - ((long)&ul->lv_current_le));
-	err |= __copy_to_user(&ul->lv_remap_ptr, &l->lv_remap_ptr,
-				((long)&ul->dummy[0]) - ((long)&ul->lv_remap_ptr));
-	size = l->lv_allocated_le * sizeof(pe_t);
-	if (ptr1)
-		err |= __copy_to_user((void *)A(ptr1), l->lv_current_pe, size);
-	return err ? -EFAULT : 0;
-}
-
-static int do_lvm_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	vg_t *v = NULL;
-	union {
-		lv_req_t lv_req;
-		le_remap_req_t le_remap;
-		lv_status_byindex_req_t lv_byindex;
-	        lv_status_bydev_req_t lv_bydev;
-		pv_status_req_t pv_status;
-	} u;
-	pv_t p;
-	int err;
-	u32 ptr = 0;
-	int i;
-	mm_segment_t old_fs;
-	void *karg = &u;
-
-	switch (cmd) {
-	case VG_STATUS:
-		v = kmalloc(sizeof(vg_t), GFP_KERNEL);
-		if (!v)
-			return -ENOMEM;
-		karg = v;
-		break;
-
-	case VG_CREATE_OLD:
-	case VG_CREATE:
-		v = kmalloc(sizeof(vg_t), GFP_KERNEL);
-		if (!v)
-			return -ENOMEM;
-		if (copy_from_user(v, (void *)arg, (long)&((vg32_t *)0)->proc)) {
-			kfree(v);
-			return -EFAULT;
-		}
-		/* 'proc' field is unused, just NULL it out. */
-		v->proc = NULL;
-		if (copy_from_user(v->vg_uuid, ((vg32_t *)arg)->vg_uuid, UUID_LEN+1)) {
-			kfree(v);
-			return -EFAULT;
-		}
-		    
-		karg = v;
-		memset(v->pv, 0, sizeof(v->pv) + sizeof(v->lv));
-		if (v->pv_max > ABS_MAX_PV || v->lv_max > ABS_MAX_LV)
-			return -EPERM;
-		for (i = 0; i < v->pv_max; i++) {
-			err = __get_user(ptr, &((vg32_t *)arg)->pv[i]);
-			if (err)
-				break;
-			if (ptr) {
-				v->pv[i] = kmalloc(sizeof(pv_t), GFP_KERNEL);
-				if (!v->pv[i]) {
-					err = -ENOMEM;
-					break;
-				}
-				err = copy_from_user(v->pv[i], (void *)A(ptr),
-						     sizeof(pv32_t) - 8 - UUID_LEN+1);
-				if (err) {
-					err = -EFAULT;
-					break;
-				}
-				err = copy_from_user(v->pv[i]->pv_uuid,
-						     ((pv32_t *)A(ptr))->pv_uuid,
-						     UUID_LEN+1);
-				if (err) {
-				        err = -EFAULT;
-					break;
-				}
-
-				v->pv[i]->pe = NULL;
-				v->pv[i]->bd = NULL;
-			}
-		}
-		if (!err) {
-			for (i = 0; i < v->lv_max; i++) {
-				err = __get_user(ptr, &((vg32_t *)arg)->lv[i]);
-				if (err)
-					break;
-				if (ptr) {
-					v->lv[i] = get_lv_t(ptr, &err);
-					if (err)
-						break;
-				}
-			}
-		}
-		break;
-
-	case LV_CREATE:
-	case LV_EXTEND:
-	case LV_REDUCE:
-	case LV_REMOVE:
-	case LV_RENAME:
-	case LV_STATUS_BYNAME:
-	        err = copy_from_user(&u.pv_status, arg, sizeof(u.pv_status.pv_name));
-		if (err)
-			return -EFAULT;
-		if (cmd != LV_REMOVE) {
-			err = __get_user(ptr, &((lv_req32_t *)arg)->lv);
-			if (err)
-				return err;
-			u.lv_req.lv = get_lv_t(ptr, &err);
-		} else
-			u.lv_req.lv = NULL;
-		break;
-
-	case LV_STATUS_BYINDEX:
-		err = get_user(u.lv_byindex.lv_index,
-			       &((lv_status_byindex_req32_t *)arg)->lv_index);
-		err |= __get_user(ptr, &((lv_status_byindex_req32_t *)arg)->lv);
-		if (err)
-			return err;
-		u.lv_byindex.lv = get_lv_t(ptr, &err);
-		break;
-
-	case LV_STATUS_BYDEV:
-	        err = get_user(u.lv_bydev.dev, &((lv_status_bydev_req32_t *)arg)->dev);
-		err |= __get_user(ptr, &((lv_status_bydev_req32_t *)arg)->lv);
-		if (err)
-			return err;
-		u.lv_bydev.lv = get_lv_t(ptr, &err);
-		break;
-
-	case VG_EXTEND:
-		err = copy_from_user(&p, (void *)arg, sizeof(pv32_t) - 8 - UUID_LEN+1);
-		if (err)
-			return -EFAULT;
-		err = copy_from_user(p.pv_uuid, ((pv32_t *)arg)->pv_uuid, UUID_LEN+1);
-		if (err)
-			return -EFAULT;
-		p.pe = NULL;
-		p.bd = NULL;
-		karg = &p;
-		break;
-
-	case PV_CHANGE:
-	case PV_STATUS:
-		err = copy_from_user(&u.pv_status, arg, sizeof(u.lv_req.lv_name));
-		if (err)
-			return -EFAULT;
-		err = __get_user(ptr, &((pv_status_req32_t *)arg)->pv);
-		if (err)
-			return err;
-		u.pv_status.pv = &p;
-		if (cmd == PV_CHANGE) {
-			err = copy_from_user(&p, (void *)A(ptr),
-					     sizeof(pv32_t) - 8 - UUID_LEN+1);
-			if (err)
-				return -EFAULT;
-			p.pe = NULL;
-			p.bd = NULL;
-		}
-		break;
-	};
-
-        old_fs = get_fs(); set_fs (KERNEL_DS);
-        err = sys_ioctl (fd, cmd, (unsigned long)karg);
-        set_fs (old_fs);
-
-	switch (cmd) {
-	case VG_STATUS:
-		if (!err) {
-			if (copy_to_user((void *)arg, v, (long)&((vg32_t *)0)->proc) ||
-			    clear_user(&((vg32_t *)arg)->proc, sizeof(vg32_t) - (long)&((vg32_t *)0)->proc))
-				err = -EFAULT;
-		}
-		if (copy_to_user(((vg32_t *)arg)->vg_uuid, v->vg_uuid, UUID_LEN+1)) {
-		        err = -EFAULT;
-		}
-		kfree(v);
-		break;
-
-	case VG_CREATE_OLD:
-	case VG_CREATE:
-		for (i = 0; i < v->pv_max; i++) {
-			if (v->pv[i])
-				kfree(v->pv[i]);
-		}
-		for (i = 0; i < v->lv_max; i++) {
-			if (v->lv[i])
-				put_lv_t(v->lv[i]);
-		}
-		kfree(v);
-		break;
-
-	case LV_STATUS_BYNAME:
-		if (!err && u.lv_req.lv)
-			err = copy_lv_t(ptr, u.lv_req.lv);
-		/* Fall through */
-
-        case LV_CREATE:
-	case LV_EXTEND:
-	case LV_REDUCE:
-		if (u.lv_req.lv)
-			put_lv_t(u.lv_req.lv);
-		break;
-
-	case LV_STATUS_BYINDEX:
-		if (u.lv_byindex.lv) {
-			if (!err)
-				err = copy_lv_t(ptr, u.lv_byindex.lv);
-			put_lv_t(u.lv_byindex.lv);
-		}
-		break;
-
-	case LV_STATUS_BYDEV:
-	        if (u.lv_bydev.lv) {
-			if (!err)
-				err = copy_lv_t(ptr, u.lv_bydev.lv);
-			put_lv_t(u.lv_byindex.lv);
-	        }
-	        break;
-
-	case PV_STATUS:
-		if (!err) {
-			err = copy_to_user((void *)A(ptr), &p, sizeof(pv32_t) - 8 - UUID_LEN+1);
-			if (err)
-				return -EFAULT;
-			err = copy_to_user(((pv_t *)A(ptr))->pv_uuid, p.pv_uuid, UUID_LEN + 1);
-			if (err)
-				return -EFAULT;
-		}
-		break;
-	};
-
-	return err;
-}
-#endif

From - Thu Nov 08 21:27:55 2018
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From: Randolph Chung <tausq@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [hppa] binutils will not build shared libraries with external deps?
Date: Mon, 26 May 2003 22:22:51 -0700
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Cc: debian-gcc@lists.debian.org, parisc-linux@parisc-linux.org
To: bug-binutils@gnu.org, binutils@sources.redhat.com
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Xref: news.gmane.org gmane.linux.ports.parisc:18560

Looks like latest binutils CVS (also as of 2.14.90.0.1) cannot build
shared libraries that have external symbols on at least hppa-linux:

tausq@ios:~$ cat blah.c
extern int foo();
int call_foo() { return foo(); }

tausq@ios:~$ gcc -shared -fPIC -o blah.so blah.c
/tmp/ccC3fZeH.o(.text+0x1c): In function `call_foo':
: undefined reference to `foo'

this worked fine on older binutils (e.g. 2.13.90.0.16 worked).

does anyone know what might be broken? this is causing a lot of failures
in the binutils test suite....

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/



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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [patch] kill lvm from parisc
Date: Tue, 27 May 2003 12:11:53 +0100
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Cc: torvalds@transmeta.com, linux-kernel@vger.kernel.org,
	matthew@wil.cx, parisc-linux@parisc-linux.org
To: Andries.Brouwer@cwi.nl
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On Tue, May 27, 2003 at 12:20:50AM +0200, Andries.Brouwer@cwi.nl wrote:
> CONFIG_BLK_DEV_LVM is gone, but there is still some associated code.
> This is the parisc part.

it's already gone from the parisc tree and will be picked up whenever
linus gets round to releasing 2.5.70 and we submit a patch.  please stop
resending.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


From - Thu Nov 08 21:27:56 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] CVS accounts
Date: Tue, 27 May 2003 18:14:18 +0100
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We need to move CVS to a faster box.  So this is a good time to reevaluate
who has CVS access.  Going back through the past 6 months, the following
people have committed code to p-l.org and will thus get accounts on the
new cvs.p-l.org.  If your name isn't on this list and you'd like it to
be, send mail.

bame
bdale
carlos
deller
grundler
jejb
lamont
mkp
rbrad
tausq
varenet
willy

6 months is an entirely random time period so don't be offended if
your name isn't on the list; just send mail so I know to create this
account.  Of course we can always add accounts later, but if you're
using non-anonymous CVS access and your name isn't on the list, it'll
stop working.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


From - Thu Nov 08 21:27:56 2018
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From: dann frazier <dannf@dannf.org>
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Subject: [parisc-linux] cvs migration
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cvs has moved to our new box (finally! hosted on a parisc-linux box!)
if you've been using the recommended cvs.parisc-linux.org name, the transition
should have been transparent, in most regards.

- anonymous access should be transparent.
- ssh users that weren't part of willy's list of recent committers will need
  to request their account be reactivated.
- ssh users will see that the host key has changed.
- you may get errors until dns propogation has completed
- non-cvs accounts from dsl2 have not migrated to palinux, nor have home
  directories.  home directories should be migrated by hand.
- bame: your cronjobs that access cvs will likely break - sorry for the lack
  of warning.

please let me know if you notice other breakages (i'm not on this list).

-- 

dannf@dannf.org 


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This is a multi-part message in MIME format
--d9518f36-9120-11d7-9a22-0008c7082063
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable

Dear Sir/Madam

This letter maybe like a supprise to you but treat this with utmost care that =
you will understand my plige, Following the sudden death of my husband =
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Have  been thrown into a state of utter confusion, frustration and =
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As a widow that is so traumatized, I have lost confidence with anybody within =
the country. You must have heard over the media reports and the internet on =
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diverting this fund into your account which will accrue you 20% of this fund =


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Subject: [parisc-linux] Re: [hppa] binutils will not build shared libraries with external deps?
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On Mon, May 26, 2003 at 10:22:51PM -0700, Randolph Chung wrote:
> tausq@ios:~$ gcc -shared -fPIC -o blah.so blah.c
> /tmp/ccC3fZeH.o(.text+0x1c): In function `call_foo':
> : undefined reference to `foo'

This should fix it.  Would someone mind applying it for me?  I'm in
transit at the moment and internet access is slow and flaky.  2.14
branch too, I guess.

	* elf32-hppa.c (elf32_hppa_relocate_section): Delete bogus
	undefined_symbol call.

--- bfd/elf32-hppa.c~	2003-05-08 12:08:31.000000000 +0930
+++ bfd/elf32-hppa.c	2003-05-28 10:44:19.000000000 +0930
@@ -3666,16 +3666,11 @@ elf32_hppa_relocate_section (output_bfd,
 	    }
 	  else if (h->elf.root.type == bfd_link_hash_undefweak)
 	    ;
-	  else if (info->shared && !info->no_undefined
+	  else if (info->shared
+		   && !info->no_undefined
 		   && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
 		   && h->elf.type != STT_PARISC_MILLI)
-	    {
-	      if (!((*info->callbacks->undefined_symbol)
-		    (info, h->elf.root.root.string, input_bfd,
-		     input_section, rel->r_offset, FALSE)))
-		return FALSE;
-	      warned_undef = TRUE;
-	    }
+	    ;
 	  else
 	    {
 	      if (!((*info->callbacks->undefined_symbol)

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre


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On Thu, May 29, 2003 at 04:37:06AM +0930, amodra@bigpond.net.au wrote:
> On Mon, May 26, 2003 at 10:22:51PM -0700, Randolph Chung wrote:
> > tausq@ios:~$ gcc -shared -fPIC -o blah.so blah.c
> > /tmp/ccC3fZeH.o(.text+0x1c): In function `call_foo':
> > : undefined reference to `foo'
> 
> This should fix it.  Would someone mind applying it for me?  I'm in
> transit at the moment and internet access is slow and flaky.  2.14
> branch too, I guess.

Applied to mainline.


H.J.


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Xref: news.gmane.org gmane.linux.ports.parisc:18567

On Wed, May 28, 2003 at 09:39:39AM +0200, Rdiger Scholz wrote:
> Hello,
> 
> I just tried to do a "cvs update", but I get an error during anonymous 
> login:
> 
> ruediger@gandalf:/usr/src$ cvs login
> Logging in to :pserver:anonymous@cvs.parisc-linux.org:2401/var/cvs
> CVS password: [empty]
> cvs login: authorization failed: server cvs.parisc-linux.org rejected 
> access to /var/cvs for user anonymous
> ruediger@gandalf:/usr/src$
> 
> DNS-Entry of cvs.parisc-linux.org for me is: 192.25.206.7.

that is out of date - the correct ip is now .14
-- 

dannf@dannf.org 


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Subject: Re: [parisc-linux] Re: [hppa] binutils will not build shared libraries with external deps?
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H. J. Lu writes:
> On Thu, May 29, 2003 at 04:37:06AM +0930, amodra@bigpond.net.au wrote:
> > On Mon, May 26, 2003 at 10:22:51PM -0700, Randolph Chung wrote:
> > > tausq@ios:~$ gcc -shared -fPIC -o blah.so blah.c
> > > /tmp/ccC3fZeH.o(.text+0x1c): In function `call_foo':
> > > : undefined reference to `foo'
> > 
> > This should fix it.  Would someone mind applying it for me?  I'm in
> > transit at the moment and internet access is slow and flaky.  2.14
> > branch too, I guess.
> 
> Applied to mainline.

built binutils-2.14.90.0.4 with this patch, diffs between 2.14.90.0.3
and 2.14.90.0.4 (plus patch) attached.

	Matthias

--- ../ts-2.14.90.0.3	2003-05-28 23:26:27.000000000 +0200
+++ ../ts-2.14.90.0.4	2003-05-28 23:27:04.000000000 +0200
@@ -1,4 +1,4 @@
-Test Run By doko on Sat May 24 09:29:16 2003
+Test Run By doko on Wed May 28 23:17:19 2003
 Native configuration is hppa-unknown-linux-gnu
 
 		=== binutils tests ===
@@ -52,7 +52,7 @@
 		=== binutils Summary ===
 
 # of expected passes		32
-Test Run By doko on Sat May 24 09:29:43 2003
+Test Run By doko on Wed May 28 23:17:47 2003
 Native configuration is hppa-unknown-linux-gnu
 
 		=== gas tests ===
@@ -385,7 +385,7 @@
 # of expected failures		11
 ../as-new Inc.
 
-Test Run By doko on Sat May 24 09:33:34 2003
+Test Run By doko on Wed May 28 23:21:37 2003
 Native configuration is hppa-unknown-linux-gnu
 
 		=== ld tests ===
@@ -425,7 +425,7 @@
 PASS: size/aligment change of common symbols (change 2)
 Running ld/testsuite/ld-elfvers/vers.exp ...
 PASS: vers1
-FAIL: vers2
+PASS: vers2
 PASS: vers3
 PASS: vers4
 PASS: vers4a
@@ -472,7 +472,7 @@
 PASS: vers27c1
 PASS: vers27c2
 PASS: vers27d1
-FAIL: vers27d2
+PASS: vers27d2
 PASS: vers27d3
 PASS: vers27d4
 PASS: vers27d5
@@ -485,9 +485,9 @@
 PASS: ld-elfvsb/protected1
 FAIL: visibility (hidden) (non PIC)
 FAIL: visibility (hidden) (non PIC, load offset)
-FAIL: visibility (hidden)
+PASS: visibility (hidden)
 FAIL: visibility (hidden) (PIC main, non PIC so)
-FAIL: visibility (hidden) (PIC main)
+PASS: visibility (hidden) (PIC main)
 FAIL: visibility (hidden_normal) (non PIC)
 FAIL: visibility (hidden_normal) (non PIC, load offset)
 FAIL: visibility (hidden_normal)
@@ -500,9 +500,9 @@
 PASS: visibility (hidden_undef) (PIC main)
 FAIL: visibility (hidden_undef_def) (non PIC)
 FAIL: visibility (hidden_undef_def) (non PIC, load offset)
-FAIL: visibility (hidden_undef_def)
+PASS: visibility (hidden_undef_def)
 FAIL: visibility (hidden_undef_def) (PIC main, non PIC so)
-FAIL: visibility (hidden_undef_def) (PIC main)
+PASS: visibility (hidden_undef_def) (PIC main)
 FAIL: visibility (hidden_weak) (non PIC)
 FAIL: visibility (hidden_weak) (non PIC, load offset)
 FAIL: visibility (hidden_weak)
@@ -510,9 +510,9 @@
 FAIL: visibility (hidden_weak) (PIC main)
 FAIL: visibility (protected) (non PIC)
 FAIL: visibility (protected) (non PIC, load offset)
-FAIL: visibility (protected)
+PASS: visibility (protected)
 FAIL: visibility (protected) (PIC main, non PIC so)
-FAIL: visibility (protected) (PIC main)
+PASS: visibility (protected) (PIC main)
 FAIL: visibility (protected_undef) (non PIC)
 FAIL: visibility (protected_undef) (non PIC, load offset)
 PASS: visibility (protected_undef)
@@ -520,9 +520,9 @@
 PASS: visibility (protected_undef) (PIC main)
 FAIL: visibility (protected_undef_def) (non PIC)
 FAIL: visibility (protected_undef_def) (non PIC, load offset)
-FAIL: visibility (protected_undef_def)
+PASS: visibility (protected_undef_def)
 FAIL: visibility (protected_undef_def) (PIC main, non PIC so)
-FAIL: visibility (protected_undef_def) (PIC main)
+PASS: visibility (protected_undef_def) (PIC main)
 FAIL: visibility (protected_weak) (non PIC)
 FAIL: visibility (protected_weak) (non PIC, load offset)
 FAIL: visibility (protected_weak)
@@ -547,10 +547,10 @@
 FAIL: ELF weak func last DSO
 PASS: ELF DSO weak data first
 PASS: ELF DSO weak data last
-FAIL: ELF DSO weak data first DSO
-FAIL: ELF DSO weak data last DSO
-FAIL: ELF DSO weak data first DSO common
-FAIL: ELF DSO weak data last DSO common
+PASS: ELF DSO weak data first DSO
+PASS: ELF DSO weak data last DSO
+PASS: ELF DSO weak data first DSO common
+PASS: ELF DSO weak data last DSO common
 PASS: ELF weak data first
 PASS: ELF weak data last
 PASS: ELF weak data first common
@@ -613,10 +613,10 @@
 Running ld/testsuite/ld-shared/shared.exp ...
 FAIL: shared (non PIC)
 FAIL: shared (non PIC, load offset)
-FAIL: shared
+PASS: shared
 PASS: shared -Bsymbolic
 FAIL: shared (PIC main, non PIC so)
-FAIL: shared (PIC main)
+PASS: shared (PIC main)
 Running ld/testsuite/ld-sparc/sparc.exp ...
 Running ld/testsuite/ld-srec/srec.exp ...
 XFAIL: S-records
@@ -635,8 +635,8 @@
 
 		=== ld Summary ===
 
-# of expected passes		117
-# of unexpected failures	63
+# of expected passes		133
+# of unexpected failures	47
 # of expected failures		4
 builddir-single/ld/ld-new Inc.
 


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From: =?iso-8859-1?Q?J=F6rg_Benndorf?= <joerg.benndorf@t-online.de>
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I got the six cd iso files using jigdo. After installation tasksel =
offers no option to install the x window system.
Is there a howto document covering this issue -or- would someone mind to =
help me get x runnning on a 712 box.
Anyone to help? Thanks, Joerg.


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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.3315.2870" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>I got the six cd iso files using jigdo. =
After=20
installation tasksel offers no option to install the x window=20
system.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Is there a howto document covering this =
issue -or-=20
would someone mind to help me get x runnning on a 712 box.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Anyone to help? Thanks, =
Joerg.</FONT></DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

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Xref: news.gmane.org gmane.linux.ports.parisc:18570

apt-get install x-window-system (or something like this)

----- Original Message ----- 
From: "Jrg Benndorf" <joerg.benndorf@t-online.de>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Friday, May 30, 2003 9:14 AM
Subject: [parisc-linux] missing tasksel option 'x-window system' on parisc
box


I got the six cd iso files using jigdo. After installation tasksel offers no
option to install the x window system.
Is there a howto document covering this issue -or- would someone mind to
help me get x runnning on a 712 box.
Anyone to help? Thanks, Joerg.



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Subject: Re: [parisc-linux] missing tasksel option 'x-window system' on parisc box
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Thank you for your hint but this doesn't seem to work - always prompts
"unmet dependencies" / "is not going to be installed" / "is not
installable".
Any other idea or am i missing an apt http/ftp source?

----- Original Message -----
From: "kenneth westelinck" <kennywest1@hotmail.com>
To: "Jrg Benndorf" <joerg.benndorf@t-online.de>;
<parisc-linux@lists.parisc-linux.org>
Sent: Friday, May 30, 2003 10:24 AM
Subject: Re: [parisc-linux] missing tasksel option 'x-window system' on
parisc box


> apt-get install x-window-system (or something like this)
>
> ----- Original Message -----
> From: "Jrg Benndorf" <joerg.benndorf@t-online.de>
> To: <parisc-linux@lists.parisc-linux.org>
> Sent: Friday, May 30, 2003 9:14 AM
> Subject: [parisc-linux] missing tasksel option 'x-window system' on parisc
> box
>
>
> I got the six cd iso files using jigdo. After installation tasksel offers
no
> option to install the x window system.
> Is there a howto document covering this issue -or- would someone mind to
> help me get x runnning on a 712 box.
> Anyone to help? Thanks, Joerg.
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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Subject: Re: [parisc-linux] missing tasksel option 'x-window system' on parisc box
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I am using ftp.belnet.be as source (no CDs) and doing apt-cache search
window returns x-window-system, so it should work. Anyways, I think
"x-window-system" is a virtual package. So you should be able to install all
it's sub-components manually. Such as xserver-common, ... .

----- Original Message ----- 
From: "Jrg Benndorf" <joerg.benndorf@t-online.de>
To: <parisc-linux@lists.parisc-linux.org>
Sent: Friday, May 30, 2003 11:46 AM
Subject: Re: [parisc-linux] missing tasksel option 'x-window system' on
parisc box


> Thank you for your hint but this doesn't seem to work - always prompts
> "unmet dependencies" / "is not going to be installed" / "is not
> installable".
> Any other idea or am i missing an apt http/ftp source?
>
> ----- Original Message -----
> From: "kenneth westelinck" <kennywest1@hotmail.com>
> To: "Jrg Benndorf" <joerg.benndorf@t-online.de>;
> <parisc-linux@lists.parisc-linux.org>
> Sent: Friday, May 30, 2003 10:24 AM
> Subject: Re: [parisc-linux] missing tasksel option 'x-window system' on
> parisc box
>
>
> > apt-get install x-window-system (or something like this)
> >
> > ----- Original Message -----
> > From: "Jrg Benndorf" <joerg.benndorf@t-online.de>
> > To: <parisc-linux@lists.parisc-linux.org>
> > Sent: Friday, May 30, 2003 9:14 AM
> > Subject: [parisc-linux] missing tasksel option 'x-window system' on
parisc
> > box
> >
> >
> > I got the six cd iso files using jigdo. After installation tasksel
offers
> no
> > option to install the x window system.
> > Is there a howto document covering this issue -or- would someone mind to
> > help me get x runnning on a 712 box.
> > Anyone to help? Thanks, Joerg.
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>


From - Thu Nov 08 21:27:56 2018
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Subject: Re: [parisc-linux] missing tasksel option 'x-window system' on parisc box
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Xref: news.gmane.org gmane.linux.ports.parisc:18573

Even if i use ftp.belnet.be as a single source my system does not allow me
to install x-window-system.
So i tried to get xserver-common - success! So i have to look for all
packages needed to run x...
Hopefully i will find them inside the x-howto.
Thank you again for your help.
Joerg.

----- Original Message -----
From: "kenneth westelinck" <kennywest1@hotmail.com>
To: "Jrg Benndorf" <joerg.benndorf@t-online.de>;
<parisc-linux@lists.parisc-linux.org>
Sent: Friday, May 30, 2003 12:10 PM
Subject: Re: [parisc-linux] missing tasksel option 'x-window system' on
parisc box


> I am using ftp.belnet.be as source (no CDs) and doing apt-cache search
> window returns x-window-system, so it should work. Anyways, I think
> "x-window-system" is a virtual package. So you should be able to install
all
> it's sub-components manually. Such as xserver-common, ... .
>
> ----- Original Message -----
> From: "Jrg Benndorf" <joerg.benndorf@t-online.de>
> To: <parisc-linux@lists.parisc-linux.org>
> Sent: Friday, May 30, 2003 11:46 AM
> Subject: Re: [parisc-linux] missing tasksel option 'x-window system' on
> parisc box
>
>
> > Thank you for your hint but this doesn't seem to work - always prompts
> > "unmet dependencies" / "is not going to be installed" / "is not
> > installable".
> > Any other idea or am i missing an apt http/ftp source?
> >
> > ----- Original Message -----
> > From: "kenneth westelinck" <kennywest1@hotmail.com>
> > To: "Jrg Benndorf" <joerg.benndorf@t-online.de>;
> > <parisc-linux@lists.parisc-linux.org>
> > Sent: Friday, May 30, 2003 10:24 AM
> > Subject: Re: [parisc-linux] missing tasksel option 'x-window system' on
> > parisc box
> >
> >
> > > apt-get install x-window-system (or something like this)
> > >
> > > ----- Original Message -----
> > > From: "Jrg Benndorf" <joerg.benndorf@t-online.de>
> > > To: <parisc-linux@lists.parisc-linux.org>
> > > Sent: Friday, May 30, 2003 9:14 AM
> > > Subject: [parisc-linux] missing tasksel option 'x-window system' on
> parisc
> > > box
> > >
> > >
> > > I got the six cd iso files using jigdo. After installation tasksel
> offers
> > no
> > > option to install the x window system.
> > > Is there a howto document covering this issue -or- would someone mind
to
> > > help me get x runnning on a 712 box.
> > > Anyone to help? Thanks, Joerg.
> > >
> > > _______________________________________________
> > > parisc-linux mailing list
> > > parisc-linux@lists.parisc-linux.org
> > > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > >
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >




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Xref: news.gmane.org gmane.linux.ports.parisc:18574

Hi,

I just wanted to share the experience I made after experimenting with
different compilers and linux-2.4.20-pa35 on Debian/testing on a C240.
Maybe it's of some use for you or somebody has some remarks how to
solve an issue or whether it's just me who has problems ;)
This is not a request for fixing things, I'm just curious whether
developers/users had similar problems and/or are aware of them.


Some general problems:


I use quite a lot of additional non-HP hardware in my C240:

I'm using a 4port USB2.0-card, a IBM Token Ring card, (soon hopefully a
NetGEAR MA311 Wireless NIC) and a 8193too-compatible Network card)

So far I can only use USB1.1 drivers, since the EHCI code seems to
dislike parisc (kernel oops with any compiler).

Another general problem (which exists as far as I can remember):

It also seems that I can only use drivers for hardware if they are
directly compiled into the kernel, since otherwise 'lspci -v' will
show ioports/memory for devices marked as 'disabled' and trying to
modprobe h/w driver modules will fail.
Modules not accessing the hardware directly however work fine.



Oh yes, one important issue:
I have this 'target suffers from tag starvation' problem as some others
seem to have aswell. I just have a 20GB SE SCSI (50 pin), no other SCSI
devices (the original internal UW-SCSI drive is in my AlphaStation now).

I tried several configurations ... actually all configurations possible.
It is definitely NOT a SCSI termination issue, nor a faulty HD (it works
perfectly on my SUN and my Alpha). Moreover it works quite well with
older kernels, such as 2.4.19-pa2.

Newer kernels (starting with about 2.4.20) often report "target is
suffering from tag starvation" and after that the kernel will most likely
oops and hang. Most the time I even can't boot the kernel, since
mounting the root fs alone will most likely cause a kernel crash.
Older kernels either don't display the message at all, or
not very often (such as once a day if the disk is in HEAVY use), and the
kernel will never crash after displaying the message.

So I copied the /usr/src/linux-2.4.19-pa2/drivers/scsi/53c700.c driver
to the corresponding directory in the 2.4.20-pa35 kernel and now the
kernel is perfectly stable again!
I don't know what causes this trouble, but I really don't think it's my
SCSI hardware (I use SCSI devices for quite a long time. I should know by
know which cables to use and how to do proper SCSI termination etc.
Moreover I exchanged everything just to be sure it's not faulty
cables/terminators).
Maybe it's just the software driver, maybe it's a bug in the HP SCSI chip
when using SE disks ... I just know the older driver is much more stable!


And finally some issues I have found when using certain versions of gcc
to compile linux-2.4.20-pa35:

(for all different compilers I used the same configuration, except for
choosing 32/64bit kernels. I use the PA8000 CPU option by default)



hppa64-gcc (3.2.3, from ftp.p-l.org unofficial-debs)
  seems to work fine but obviously ipt_limit.o is miscompiled:
  I can insmod it, but iptable wouldn't recognize the --limit* options.
  There are still some problems with some modules and canonicalize_funcptr,
  (IIRC networking VLAN support, TUN/TAP, zlib_deflate), but when
  compiled into the kernel (not compiled as modules) they seems to work

  Also some stability issues:
  Ie. wmrack makes the kernel crash immeadiately (no kernel Oops output),
  xosview doesn't work (no windows opened)

gcc-3.0
  still propably the recommended compiler, no problems!
  IIRC I still used the PA7000 CPU setting when compiling with gcc-3.0
  at that time

gcc-3.2.3
  I don't recall having the same issues in ipt_limit.o that the 64bit
  version of gcc-3.2.3 has, everythink seems to work quite well. compiling
  the kernel is slower than gcc-3.0

gcc-3.3
  compiled fine after commenting out the references $mulU in parisc_ksyms.c
  and fixing drivers/net/tokenring/olympic.c (yes, some people still use
  tokenring!):
     - type cast error in the use of memcpy_fromio, casting the parameter
       to ulong works
     - one text string spread over two lines, but without a '\' at the end.

  Man, gcc-3.3 is SLOW! it takes ages to compile the kernel!

  Kernel compiled with 3.3 definitely have a bogomips problem (they report
  0.8 instead of about 470 on a C240);
  The kernel takes forever to boot up (it 'waits' for over one minute
  after palo loads the kernel (right after the 'switch to another console'
  message)), propably because of the bogomips calculation.
  Also the userspace programme 'bogomips' has the same issue.

  Apart to make from this issues, gcc-3.3 produces a kernel that is at
  least as stable as those compiled with 3.0 or 3.2


BTW, I've quite alot of networking stuff in the kernel:
IPv6, Bridging, VLan, PPP, PPPoE, Netfilter, Network devices etc.
Apart from that it is a pretty 'normal' configuration (I'll send the
.config and System.map if somebody wants it).


Right now I'm running linux-2.4.20-pa35 for over a week now, and the
machine is really stable. It's actively used as DHCP-server,
SMB-server, router/firewall and for several other stuff in our LAN.



Thanks, Max



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Hi,

I had to recompile the kernel on the netinst cd so I could get my NIC =
support in. I have the lifimage now. Do I just mount the cd image I have =
through loopback copy it's contents. Copy my lifimage into the root =
directory and mkisofs that new directory?

Kris
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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I had to recompile the kernel on the =
netinst cd=20
so&nbsp;I could get my NIC support in. I have the lifimage now. =
Do&nbsp;I just=20
mount the cd image I have through loopback copy it's contents. Copy my =
lifimage=20
into the root directory and mkisofs that new directory?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Kris</FONT></DIV></BODY></HTML>

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To: "M. Grabert" <xam@cs.ucc.ie>
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M. Grabert wrote:

>[...]
>
>Oh yes, one important issue:
>I have this 'target suffers from tag starvation' problem as some others
>seem to have aswell. I just have a 20GB SE SCSI (50 pin), no other SCSI
>devices (the original internal UW-SCSI drive is in my AlphaStation now).
>  
>
>I tried several configurations ... actually all configurations possible.
>It is definitely NOT a SCSI termination issue, nor a faulty HD (it works
>perfectly on my SUN and my Alpha). Moreover it works quite well with
>older kernels, such as 2.4.19-pa2.
>
>Newer kernels (starting with about 2.4.20) often report "target is
>suffering from tag starvation" and after that the kernel will most likely
>oops and hang. Most the time I even can't boot the kernel, since
>mounting the root fs alone will most likely cause a kernel crash.
>Older kernels either don't display the message at all, or
>not very often (such as once a day if the disk is in HEAVY use), and the
>kernel will never crash after displaying the message.
>
>So I copied the /usr/src/linux-2.4.19-pa2/drivers/scsi/53c700.c driver
>to the corresponding directory in the 2.4.20-pa35 kernel and now the
>kernel is perfectly stable again!
>
Which scsi driver do you used (I presume a Symbios one but version 1 or 
2; version 2 is recommended now in 2.4.20-pa..)?

OTC this w-e I still experiment such a scsi terminator pb: I recover a 
lvd 30gb scsi-disk (sun); I find a converter sca2 80pins sca 64pins but 
a cable with terminator for hvd disk. The disk seems to works fine 
untill the terminator warm to much then I got scsi parity errors. And 
without terminator the controler do not see the disk at all?

>I don't know what causes this trouble, but I really don't think it's my
>SCSI hardware (I use SCSI devices for quite a long time. I should know by
>know which cables to use and how to do proper SCSI termination etc.
>Moreover I exchanged everything just to be sure it's not faulty
>cables/terminators).
>Maybe it's just the software driver, maybe it's a bug in the HP SCSI chip
>when using SE disks ... I just know the older driver is much more stable!
>  
>

>
>And finally some issues I have found when using certain versions of gcc
>to compile linux-2.4.20-pa35:
>
>(for all different compilers I used the same configuration, except for
>choosing 32/64bit kernels. I use the PA8000 CPU option by default)
>
>
>
>hppa64-gcc (3.2.3, from ftp.p-l.org unofficial-debs)
>  seems to work fine but obviously ipt_limit.o is miscompiled:
>  I can insmod it, but iptable wouldn't recognize the --limit* options.
>  There are still some problems with some modules and canonicalize_funcptr,
>
Are you sure this is with hppa64-gcc (iirc canonicalize.., was just 
recently backport to 3.2)?

[...]

>  Man, gcc-3.3 is SLOW! it takes ages to compile the kernel!
>
>  Kernel compiled with 3.3 definitely have a bogomips problem (they report
>  0.8 instead of about 470 on a C240);
>  The kernel takes forever to boot up (it 'waits' for over one minute
>  after palo loads the kernel (right after the 'switch to another console'
>  message)), propably because of the bogomips calculation.
>  Also the userspace programme 'bogomips' has the same issue.
>
>  Apart to make from this issues, gcc-3.3 produces a kernel that is at
>  least as stable as those compiled with 3.0 or 3.2
>
>
>BTW, I've quite alot of networking stuff in the kernel:
>IPv6, Bridging, VLan, PPP, PPPoE, Netfilter, Network devices etc.
>Apart from that it is a pretty 'normal' configuration (I'll send the
>.config and System.map if somebody wants it).
>
>
>Right now I'm running linux-2.4.20-pa35 for over a week now, and the
>machine is really stable. It's actively used as DHCP-server,
>SMB-server, router/firewall and for several other stuff in our LAN.
>
>  
>
hmm I just reboot (just to exchange cards) some l-w firewall (so only 
ppp, ppoe, netfilter, just ipv4, no ipv6 , no bridging, no vlan)  
running since 79days a kernel 2.4.20-pa22 build with gcc-3.3 on a b180 
and do not presenting this kind of pb. Unfortuantely, I don't have all 
your hw available but can you send me your config file so that I can see 
if I can reproduce.

btw which gcc-3.3 release do you use?
hth,
    Joel




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Hello Jrg,

Jrg Benndorf schrieb:

>Thank you for your hint but this doesn't seem to work - always prompts
>"unmet dependencies" / "is not going to be installed" / "is not
>installable".
>
The problem is that the package "fvwm" is in "x-window-system". But 
"fvwm" depend on the package "menu" which (i think) is not avaible for 
debian/stable. Either you are struggling with "apt" to force the 
installation with unmet dependencies or you use debian/testing. There is 
a "menu"-package.
I hope it helps,
    Rdiger



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Hello,

which graphicscard of your 715/100 are you using? The built-in one has a 
color depth of  only  8bit. So you has to change the 
"defaultdepth"-entry in your XF86Config-4 accordingly.

Ruediger




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Xref: news.gmane.org gmane.linux.ports.parisc:18579

A few notes on a successful installation on a HP K370 box, using Debian
3.0r1 and a netinstall CD (for PDC console support). Also the boot disk is
on a RAID1.

Written in the hopes it might help someone, possibly...

This was all done via a console.

Boot with the 2.4.20-pa32 netinstall CD. When it prompts you to interact
with IPL choose yes.
At the following prompt, which sould be PALO, change console=ttyS0 to
console=ttyB0

You should then have the kernel bootup and after a few moments the debian
installer menu should appear

Proceed with the install by following the prompts, taking care to read the
instructions about the partition types.

When you get to the stage where the system wants to reboot do *not* reboot
(yet).

Instead go to a shell

find the /dev directory in /mnt/target somewhere (I have forgotten the
exact location, you can find it with just a 'mount' command and read the
output)

delete the *target* /dev/ttyB0 if it does not look like this:

# ls -l ttyB0
crw-------    1	root	root	11,   0	May 27 07:48 ttyB0

then do

# mknod ttyB0 c 11 0
# CTRL-D (to logout)

You should now be able to reboot safely.

If you skip this step, Debian will boot, but you will be unable to use the
console.
Note I have not actually done the above when I was installing - I cheated
and installed sshd via a chroot setup - because I did not realise the
ttyB0 major number was incorrect on the install CD. I'm expecting that
modifying the device as above should work. If I had more time I would have
tried the above method.

I believe the major number has changed from 30 to 60, and now to 11, which
is it's final resting place (can someone confirm that)?

Once the machine reboots you should be greeted with the Debian second
stage installer - carry on with whatever options you want to pick and you
should then be dropped at a root prompt.

Debian should now be installed on your box (I hope) and that's it. Read
below if you want to have a RAID1 boot drive...

As I had 4 x 9GB disks (all identical) I decided to follow Martin
Petersen's RAID1 boot howto
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/018892.html

General packages required: mdadm, palo (>=1.2), and associated debian
build packages.

Most of the steps make perfect sense, though I had a few issues as I
wanted to stick to debian/stable as much as I could - therefore I could
not install the palo 1.2 binary package - which is required if you wish to
boot from a RAID partition.

So what you should do is get hold of the palo 1.2 debian source, and then
you should be able to build the package yourself:

# dpkg-source palo_1.2.dsc
# cd palo-1.2
# dpkg-buildpackage -r fakeroot -b
# dpkg -i ../palo_1.2_hppa.deb

If you are able to upgrade to testing, then this is not a big deal - you
should be able to simply upgrade your palo binary (along with libc etc),
and skip the above steps. Though make sure you have version 1.2 of Palo by
running '/sbin/palo | grep version' - do this as a normal user if you are
worried of breaking things.

I also had an issue as I had multiple partitions for /, /home, /var,
/boot, and /usr so I had to use multiple 'tar' commands (I'm not an expert
on tar, so I'm sure there are better ways than how I did it). I am also
uncertain how Martin's command worked for /boot in his setup too...

Anyway, it was as simple as this: (read in addition to step 5 on the Howto)

Mount new partitions in place. I mounted the RAID / onto /mnt, and then
mounted the RAID /usr onto /mnt/usr etc.

These steps should be done in single user mode - 'init 1' should get you
there (do this via console).

mount /dev/md2 /mnt
mount /dev/md0 /mnt/boot
mount /dev/md3 /mnt/usr
mount /dev/md4 /mnt/home
mount /dev/md5 /mnt/var

cd /mnt
tar -C / -clspf - . | tar -xlspvf -
cd /mnt/usr
tar -C /usr -clspf - . | tar -xlspvf -
cd /mnt/boot
tar -C /boot -clspf - . | tar -xlspvf -
cd /mnt/home
tar -C /home -clspf - . | tar -xlspvf -
cd /mnt/var
tar -C /var -clspf - . | tar -xlspvf -

You should be able to carry right on at step 6 now.

Suggested reading...

Boot Howto: http://tldp.org/HOWTO/PA-RISC-Linux-Boot-HOWTO/index.html
FAQ: http://www.parisc-linux.org/faq/index.html
Also uses the RAID1 Boot Howto:
http://www.parisc-linux.org/faq/raidboot-howto.html

I hope this helps someone! The documentation out there was very useful -
though the ttyB0 change of the major number really got me for a while (I
only found out that this had changed through searching the mailing
list)...

This is also the first time I've ever really used a HP box, and they are
... interesting :) e.g. is it normal that the machine will take about 10+
minutes to boot up? (just to get to the boot ROM, nothing to do with linux
- self tests are enabled, though disabilng them does not make too much of
a difference).

Also, anyone aware if SMP will work on this box? I have two CPU's, but I'm
only using one, as I believe the netinstall CD only comes with a SMP
disabled kernel, and I have not got the 2.4.20 kernel source available at
the moment (The HP box is not connected to the Internet).

Anyway, great project. I'm glad it all works now :)

Best regards,

Sid




From - Thu Nov 08 21:27:57 2018
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From: Joel Soete <joel.soete@tiscali.be>
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Subject: Re: [parisc-linux] Installation on a K370 with Debian 3.0r1 + RAID1
 boot.
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To: Siraj 'Sid' Rakhada <sid@mindless.co.uk>
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Hello Sid,

First of all congratulation for your great job [I am not quiet sure to 
reach this result at my first atempt) and many thanks for your kind 
reports: very clear and fine appropriate details.

Siraj 'Sid' Rakhada wrote:

[...]

>cd /mnt
>tar -C / -clspf - . | tar -xlspvf -
>cd /mnt/usr
>tar -C /usr -clspf - . | tar -xlspvf -
>cd /mnt/boot
>tar -C /boot -clspf - . | tar -xlspvf -
>cd /mnt/home
>tar -C /home -clspf - . | tar -xlspvf -
>cd /mnt/var
>tar -C /var -clspf - . | tar -xlspvf -
>  
>
I also split my fs copy at this stage but normaly if you mount all your 
fs under "/mnt" then:
cd /mnt
tar -C / -cspf - . | tar -xspvf  # just remove 'l' (el) option and 
remove v option shlould be quicker

should work also in one step (as you have 4*9Gb disks, may be do you 
still have 2 free to test and confirm this; many thanks in advance)

>I hope this helps someone! The documentation out there was very useful -
>though the ttyB0 change of the major number really got me for a while (I
>only found out that this had changed through searching the mailing
>list)...
>
>This is also the first time I've ever really used a HP box, and they are
>... interesting :) e.g. is it normal that the machine will take about 10+
>minutes to boot up? (just to get to the boot ROM, nothing to do with linux
>- self tests are enabled, though disabilng them does not make too much of
>a difference).
>
hmm, I am not quiet sure but may be this pb is solved in 2.4.20-pa35...

>Also, anyone aware if SMP will work on this box? I have two CPU's, but I'm
>only using one, as I believe the netinstall CD only ces with a SMP
>disabled kernel, and I have not got the 2.4.20 kernel source available at
>the moment (The HP box is not connected to the Internet).
>
SMP kernel should work on your K. Afaik, as there few K's running linux, 
the best would be to experiment by your self (the tips is that your 
original kernel config file stand in /boot; so you copy it into your 
linux src tree as .config and use make menuconfig to change SMP config 
:-) ).

To grab the kernel src now? How do you grab the last net boot install?

My HP boches ( :-) ) are not more connected to Internet (well just a 
light weight firewall with a pstn connection at 33000 bauds and trust me 
it is not enough to download a full kernel src in a quick way: just 
enough for some cvs update (personnaly I am awaiting a subversion server 
...) ). So I grab src (tar.gz available on ftp.parisc-linux.org/cvs or 
just patch .gz or via cvs server) on my pc and just transfer this to my 
HP box via ftp or scp (you just have be sure to have a well configured 
NIC and a ftpd or sshd server installed either on your pc (if also a 
linux) or on your hp box)

Hope this help,
    Joel

>
>Anyway, great project. I'm glad it all works now :)
>
>  
>
Well come to the club :-)




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Subject: Re: [parisc-linux] Installation on a K370 with Debian 3.0r1 + RAID1 boot.
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On 2003-05-31 15:54:36, Siraj 'Sid' Rakhada wrote:

> If you skip this step, Debian will boot, but you will be unable to use the
> console.
> Note I have not actually done the above when I was installing - I cheated
> and installed sshd via a chroot setup - because I did not realise the
> ttyB0 major number was incorrect on the install CD. I'm expecting that
> modifying the device as above should work. If I had more time I would have
> tried the above method.

For later boots, devfs and devfsd should be able to handle this if your
kernel supports it.

> This is also the first time I've ever really used a HP box, and they are
> ... interesting :) e.g. is it normal that the machine will take about 10+
> minutes to boot up? (just to get to the boot ROM, nothing to do with linux
> - self tests are enabled, though disabilng them does not make too much of
> a difference).

Oh yeah, my K250 takes ages just to get started, the LCD display and
status line on the serial console changes with different numbers. Any
idea of what all those numbers mean? I suppose they are different parts
that are tested, but a translation would be nice.=20

My manuals does not explain these messages in detail..

How ever, nice guide, I wish I had it when I set up my system =3D)


=2E.. goes off-topic:

I have 6 SCSI disks connected, distributed in two raid1-sets for / and
/usr, and a raid5-set for /home. Some of the disks are 4 GB, the rest 2
GB, so I've done dirty tricks with partitions to get the whole thing up,
and not waisting any space, and I now even have a spare disk, although
tests reveal the disk is broken.. I've managed to get two more 2
GB-disk to replace it.. =3D)

Ah, yes, the K250 is BIG, but there's only room for 4 disks! Stupid!
I've placed one disk beside the CD-rom, connected to the other
controller, and the last disk in an external cabinet =3D)

I've wondered if it would not be possible to modify the housing to get
room for more disks... Would it be immoral of me to destroy the beauty
of a K250 by cutting some holes here and there? =3D)


--=20
Stian S=F8iland               Work toward win-win situation. Win-lose
Trondheim, Norway           is where you win and the other lose.
http://www.soiland.no/      Lose-lose and lose-win are left as an
                            exercise to the reader.  [Limoncelli/Hogan]
K250 at http://beist.ntnu.nu/  =3D)                           =20


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Hi!

Now, whilest CVS was moved to another box, I'm still getting rsync
errors.

CVS (and/or its current checked-out repositories) have been moved to
cvs.p-l.org .  On that box, there's no rsync server installed. OTOH, the
old box (rsync.p-l.org) doesn't any longer have the checked-out archives
nor the repositories available (but instead, there's a README that the
contents can be found on cvs.p-l.org).

Thus, I'm again asking to make the CVS repositories available for rsync
download.

Thanks, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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Subject: [parisc-linux] palo & recoverykernel
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Xref: news.gmane.org gmane.linux.ports.parisc:18583

Hi,

I am currently using:

--commandline=3/boot/vmlinux-2.5.70-pa4 root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0
--recoverykernel=/boot/vmlinux-2.5.69-pa1
--init-partitioned=/dev/sdb

in palo.conf.

Now if commandline kernel will not boot is there a way to tell palo to
boot recovery kernel when entered boot pri/alt ipl ?
Is it possible to do this without manually changing the path (one has
to know ?) by editing field 0 and then use 'b' to boot ?

Or is there a chance to have an alternate boot option on the palo menu ?

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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Subject: [parisc-linux] 2.5.70-pa4 no booting on 715/100
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Xref: news.gmane.org gmane.linux.ports.parisc:18584

Hi,

2.5.70-pa4, no modules

...
IPv6 over IPv4 tunneling driver
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 432k freed

Stack Dump:
 10034200:  0006ff0e 100336c0 102f3810 1035f810
 100341f0:  00000000 10155ea4 100826d4 10346960
 100341e0:  102a4010 15ef71dc faf00078 ffffffe0
 100341d0:  100336c0 0000003f 00000040 15faed48
 100341c0:  00000000 102b9000 102a4010 102a4010
 100341b0:  0900deee 1012f58c 00020002 15ff1000
 100341a0:  00020002 faf00078 00000001 00000003
 10034190:  00020002 15ff1000 00020002 00000000
 10034180:  15ffe754 40182000 40027094 40181300
 10034170:  40183338 101063e4 102b5020 faf010a8
 10034160:  100826d4 10346960 15ff826c ffffffea
 10034150:  100340d8 00000000 0000000e faf00078
 10034140:  00000001 40001ffb faf00140 10309810
 10034130:  10367920 1012fa94 00000000 00000001
 10034120:  00000003 100826d4 15ff1000 00000001
 10034110:  00000040 faf00348 faf00350 00000000
 10034100:  000272ae 00000001 100336c0 102b9000
 100340f0:  faf00348 4017f988 00000000 faf00fc0
 100340e0:  faf00000 00000001 faf00348 00000000
 100340d0:  00000000 00000000 00027456 00000001
 100340c0:  faf005c0 00000000 00000000 00000000
 100340b0:  00000000 1010afe8 00000000 00000000
 100340a0:  00000000 1028bd04 000001b0 000002bd
 10034090:  40000000 00000000 00000000 102b9000
 10034080:  100336c0 00000000 00000000 00000000
 10034070:  00000000 1010a088 00000000 00000000
 10034060:  00000000 00000000 00000000 00000000
 10034050:  00000000 00000000 00000000 00000000
 10034040:  00000000 00000000 00000000 00000000
 10034030:  00000000 00000000 00000000 00000000
 10034020:  00000000 00000000 00000000 00000000
 10034010:  00000001 00000000 00000000 102ba8e4

Kernel addresses on the stack:
 [<10155ea4>] dentry_open+0x12c/0x1b8
 [<1012f58c>] do_sigaction+0xe0/0x290
 [<101063e4>] handle_interruption+0x274/0x5b4
 [<1012fa94>] sys_rt_sigaction+0x7c/0xc4
 [<1010afe8>] syscall_exit+0x0/0x28
 [<1010a088>] intr_check_sig+0x0/0xc


Kernel Fault: Code=15 regs=10034200 (Addr=00027454)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001110 Not tainted
r00-03  00000000 102e5890 1012f58c 00027454
r04-07  00000000 0000000d 0000000e 15faed54
r08-11  100340c8 00027670 102b9000 00026e70
r12-15  00027670 00000000 100336c0 102b9000
r16-19  102a4010 102a4010 0900deee 102a4010
r20-23  00001000 00027457 000000e0 0000000c
r24-27  00000000 00000000 00027456 102a4010
r28-31  00027456 00000400 10034200 400614af
sr0-3   00000001 00000001 00000000 00000001
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1019f414 1019f418
 IIR: 0c601094    ISR: 00000000  IOR: 00027454
 CPU:        0   CR30: 10034000 CR31: 102e8000
 ORIG_R28: 00000001


-- 
Greetings

Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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Subject: [parisc-linux] palo II
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Xref: news.gmane.org gmane.linux.ports.parisc:18585

Hi,

is there a chance that one can recover from s.t.h like this ?

Command line for kernel: 'root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0 palo_kernel=3/boot/vmlinux-2.5.60-pa1'
Selected kernel: /boot/vmlinux-2.5.60-pa1 from partition 3
ERROR: open /boot/vmlinux-2.5.60-pa1 from partition 3 failed
--- dead end ---

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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Subject: Re: [parisc-linux] palo II
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Xref: news.gmane.org gmane.linux.ports.parisc:18586

On Sunday 01 June 2003 15:04, Bjoern A. Zeeb wrote:
> is there a chance that one can recover from s.t.h like this ?
>
> Command line for kernel: 'root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0
> palo_kernel=3/boot/vmlinux-2.5.60-pa1' Selected kernel:
> /boot/vmlinux-2.5.60-pa1 from partition 3
> ERROR: open /boot/vmlinux-2.5.60-pa1 from partition 3 failed

You could boot a good kernel via tftp. That's how I test different kernels...

Helge


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On Sun, 1 Jun 2003, Helge Deller wrote:

> > is there a chance that one can recover from s.t.h like this ?
> >
> > Command line for kernel: 'root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0
> > palo_kernel=3/boot/vmlinux-2.5.60-pa1' Selected kernel:
> > /boot/vmlinux-2.5.60-pa1 from partition 3
> > ERROR: open /boot/vmlinux-2.5.60-pa1 from partition 3 failed
>
> You could boot a good kernel via tftp. That's how I test different kernels...

not a too bad idea but that's not the problem here.

When palo cannot open the kernel and errors out shouldn't it fall back
to the dialog and ask one to which fields to change instead of simply
running into a dead end where I think I can only recover from with
physical access to the machine ?

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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Bjoern A. Zeeb wrote:

>On Sun, 1 Jun 2003, Helge Deller wrote:
>
>  
>
>>>is there a chance that one can recover from s.t.h like this ?
>>>
>>>Command line for kernel: 'root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0
>>>palo_kernel=3/boot/vmlinux-2.5.60-pa1' Selected kernel:
>>>/boot/vmlinux-2.5.60-pa1 from partition 3
>>>ERROR: open /boot/vmlinux-2.5.60-pa1 from partition 3 failed
>>>      
>>>
>>You could boot a good kernel via tftp. That's how I test different kernels...
>>    
>>
>
>not a too bad idea but that's not the problem here.
>
>When palo cannot open the kernel and errors out shouldn't it fall back
>to the dialog and ask one to which fields to change instead of simply
>running into a dead end where I think I can only recover from with
>physical access to the machine ?
>
>  
>
Afaik no way right now and I think it would be a good idea to open a bug 
report about this subject.
The current palo status of is specialy anoying when you reboot a server 
as a N (selftest of about 1/4h) and you made some stupid typo (as you 
do: 60 in place of 69) .

Hmm if I still have some time to have a look on this (as well as for 
booting a compressed kernel), which is the best 'model' (the nearest of 
palo) that I would have to analyse?

Cheers,
    Joel



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Subject: Re: [parisc-linux] Installation on a K370 with Debian 3.0r1 + RAID1 boot.
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I could tell you what all those codes are upon boot-up, but it would take awile.  They take up half of the K-Class Service Manual.... ;)  The K-Class manual is not posted on the web, but if you ever have any fault codes scrolling on your terminal or on the LCD I'm sure someone here can help decifer them.  It will actually say FLT XXXX or WARN XXXX.  Warnings will not typically not affect system start-up.  By the way, the way the disks mount in that internal drive housing I think it would be futile to even try to mount anymore disks in there.  Plus you would need a longer/terminated HVD cable with more drive connectors.  You are better off using an external enclosure slaved off of the 10/0 bus which is the external extension of the internal disk cage.
 
derek


Stian Siland <stian@soiland.no> wrote:
On 2003-05-31 15:54:36, Siraj 'Sid' Rakhada wrote:

> If you skip this step, Debian will boot, but you will be unable to use the
> console.
> Note I have not actually done the above when I was installing - I cheated
> and installed sshd via a chroot setup - because I did not realise the
> ttyB0 major number was incorrect on the install CD. I'm expecting that
> modifying the device as above should work. If I had more time I would have
> tried the above method.

For later boots, devfs and devfsd should be able to handle this if your
kernel supports it.

> This is also the first time I've ever really used a HP box, and they are
> ... interesting :) e.g. is it normal that the machine will take about 10+
> minutes to boot up? (just to get to the boot ROM, nothing to do with linux
> - self tests are enabled, though disabilng them does not make too much of
> a difference).

Oh yeah, my K250 takes ages just to get started, the LCD display and
status line on the serial console changes with different numbers. Any
idea of what all those numbers mean? I suppose they are different parts
that are tested, but a translation would be nice. 

My manuals does not explain these messages in detail..

How ever, nice guide, I wish I had it when I set up my system =)


... goes off-topic:

I have 6 SCSI disks connected, distributed in two raid1-sets for / and
/usr, and a raid5-set for /home. Some of the disks are 4 GB, the rest 2
GB, so I've done dirty tricks with partitions to get the whole thing up,
and not waisting any space, and I now even have a spare disk, although
tests reveal the disk is broken.. I've managed to get two more 2
GB-disk to replace it.. =)

Ah, yes, the K250 is BIG, but there's only room for 4 disks! Stupid!
I've placed one disk beside the CD-rom, connected to the other
controller, and the last disk in an external cabinet =)

I've wondered if it would not be possible to modify the housing to get
room for more disks... Would it be immoral of me to destroy the beauty
of a K250 by cutting some holes here and there? =)


-- 
Stian Siland Work toward win-win situation. Win-lose
Trondheim, Norway is where you win and the other lose.
http://www.soiland.no/ Lose-lose and lose-win are left as an
exercise to the reader. [Limoncelli/Hogan]
K250 at http://beist.ntnu.nu/ =) 
_______________________________________________
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parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

---------------------------------
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<DIV>I could tell you what all those codes are upon boot-up, but it would take awile.&nbsp;&nbsp;They take up half of the K-Class Service Manual.... ;)&nbsp; The K-Class manual is not posted on the web, but if you ever have any fault codes scrolling on your terminal or on the LCD I'm sure someone here can help decifer them.&nbsp; It will actually say FLT XXXX or WARN XXXX.&nbsp; Warnings will not typically not affect system start-up.&nbsp; By the way, the way the disks mount in that internal drive housing I think it would be futile to even try to mount anymore disks in there.&nbsp; Plus you would need a longer/terminated HVD cable with more drive connectors.&nbsp; You are better off using an external enclosure slaved off of the 10/0 bus which is the external extension of the internal disk 
 cage.</DIV>
<DIV>&nbsp;</DIV>
<DIV>derek<BR><BR><BR><B><I>Stian Siland &lt;stian@soiland.no&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">On 2003-05-31 15:54:36, Siraj 'Sid' Rakhada wrote:<BR><BR>&gt; If you skip this step, Debian will boot, but you will be unable to use the<BR>&gt; console.<BR>&gt; Note I have not actually done the above when I was installing - I cheated<BR>&gt; and installed sshd via a chroot setup - because I did not realise the<BR>&gt; ttyB0 major number was incorrect on the install CD. I'm expecting that<BR>&gt; modifying the device as above should work. If I had more time I would have<BR>&gt; tried the above method.<BR><BR>For later boots, devfs and devfsd should be able to handle this if your<BR>kernel supports it.<BR><BR>&gt; This is also the first time I've ever really used a HP box, and they are<BR>&gt; ... inte
 resting :) e.g. is it normal that the machine will take about 10+<BR>&gt; minutes to boot up? (just to get to the boot ROM, nothing to do with linux<BR>&gt; - self tests are enabled, though disabilng them does not make too much of<BR>&gt; a difference).<BR><BR>Oh yeah, my K250 takes ages just to get started, the LCD display and<BR>status line on the serial console changes with different numbers. Any<BR>idea of what all those numbers mean? I suppose they are different parts<BR>that are tested, but a translation would be nice. <BR><BR>My manuals does not explain these messages in detail..<BR><BR>How ever, nice guide, I wish I had it when I set up my system =)<BR><BR><BR>... goes off-topic:<BR><BR>I have 6 SCSI disks connected, distributed in two raid1-sets for / and<BR>/usr, and a raid5-se
 t for /home. Some of the disks are 4 GB, the rest 2<BR>GB, so I've done dirty tricks with partitions to get the whole thing up,<BR>and not waisting any space, and I now even have a spare disk, although<BR>tests reveal the disk is broken.. I've managed to get two more 2<BR>GB-disk to replace it.. =)<BR><BR>Ah, yes, the K250 is BIG, but there's only room for 4 disks! Stupid!<BR>I've placed one disk beside the CD-rom, connected to the other<BR>controller, and the last disk in an external cabinet =)<BR><BR>I've wondered if it would not be possible to modify the housing to get<BR>room for more disks... Would it be immoral of me to destroy the beauty<BR>of a K250 by cutting some holes here and there? =)<BR><BR><BR>-- <BR>Stian Siland Work toward win-win situation. Win-lose<BR>Trondheim, Norwa
 y is where you win and the other lose.<BR>http://www.soiland.no/ Lose-lose and lose-win are left as an<BR>exercise to the reader. [Limoncelli/Hogan]<BR>K250 at http://beist.ntnu.nu/ =) <BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><hr SIZE=1>
Do you Yahoo!?<br>
Free <a href="http://us.rd.yahoo.com/mail_us/tag/*http://calendar.yahoo.com">online calendar</a> with sync to Outlook(TM).
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On Sat, 31 May 2003, Joel Soete wrote:

> M. Grabert wrote:
>
> >[...]
> >
> >Oh yes, one important issue:
> >I have this 'target suffers from tag starvation' problem as some others
> >seem to have aswell. I just have a 20GB SE SCSI (50 pin), no other SCSI
> >devices (the original internal UW-SCSI drive is in my AlphaStation now).
> > [...]
>
> Which scsi driver do you used (I presume a Symbios one but version 1 or
> 2; version 2 is recommended now in 2.4.20-pa..)?

I have/had this problems with both (old/new) Symbios drivers!
The problems are fixed for any Symbios driver when I use an older version
of 53x700 driver. I did extensive testing (for kernel with driver version
1 and 2) for 2 days before I was conviced that this 'fix' actually works.

Right now the kernel I currently use (with the longest uptime for months
so far) is using the Symbios v1 driver, but as I said v2 works now aswell!

> OTC this w-e I still experiment such a scsi terminator pb: I recover a
> lvd 30gb scsi-disk (sun); I find a converter sca2 80pins sca 64pins but
> a cable with terminator for hvd disk. The disk seems to works fine
> untill the terminator warm to much then I got scsi parity errors. And
> without terminator the controler do not see the disk at all?

That's actually the first time that I hear of a SCSI terminator
overheating. Perhaps you shouldn't overclock your SCSI bus then ;))))

But seriously, I have had lots of troubles with 80pins to 64pins
converters and UW to U-SCSI converters. Quite often they didn't work
for some harddisk and others worked fine. I don't trust these converters!

> >hppa64-gcc (3.2.3, from ftp.p-l.org unofficial-debs)
> >  seems to work fine but obviously ipt_limit.o is miscompiled:
> >  I can insmod it, but iptable wouldn't recognize the --limit* options.
> >  There are still some problems with some modules and canonicalize_funcptr,
> >
> Are you sure this is with hppa64-gcc (iirc canonicalize.., was just
> recently backport to 3.2)?
>
> [...]

I thought so. The canonicalize_* stuff showed up when compiling with
gcc-3.3 (I forgot this to mention), but I thought they showed up in
3.2 (64bit). Maybe I just can't remeber this one correctly.
But the iptable_limit error is definitely a hppa64-gcc-3.2.3 issue
(or a kernel issue with hppa64 ;)
>
> >  Man, gcc-3.3 is SLOW! it takes ages to compile the kernel!
> >
> >  Kernel compiled with 3.3 definitely have a bogomips problem (they report
> >  0.8 instead of about 470 on a C240);

This might actually be PA8000 specific ...

> >  The kernel takes forever to boot up (it 'waits' for over one minute
> >  after palo loads the kernel (right after the 'switch to another console'
> >  message)), propably because of the bogomips calculation.

...my PA book with the same kernel & gcc-3.3 doesn't hang!

> >  Also the userspace programme 'bogomips' has the same issue.
> >
> >  Apart to make from this issues, gcc-3.3 produces a kernel that is at
> >  least as stable as those compiled with 3.0 or 3.2

I'll send the config file as soon as I'm back home (tomorrow)

> btw which gcc-3.3 release do you use?

the latest in testing (no prerelease anymore)

 Max



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Hi Max,

>
>On Sat, 31 May 2003, Joel Soete wrote:

> M. Grabert wrote:
>
> >[...]
> >
> >Oh yes, one important issue:
> >I have this 'target suffers from tag starvation' problem as some others
> >seem to have aswell. I just have a 20GB SE
SCSI (50 pin), n
> other SCSI
> >devices (the original internal UW-SCSI drive is in my AlphaStation now).
> > [...]
>
> Which scsi driver do you used (I presume a Symbios one but version 1 or
> 2; version 2 is recommended now in 2.4.20-pa..)?


 have/had this pro
>lems with both (old/new) Symbios drivers!
The problems are fixed for any Symbios driver when I use an older version
of 53x700 driver. I did extensive testing (for kernel with driver version
1 and 2) for 2 days before I was convi
ed that this 'fix' a
>tually works.

Right now the kernel I currently use (with the longest uptime for months
so far) is using the Symbios v1 driver, but as I said v2 works now aswell!

Curious, last v2 I do not have any more pb (neither on b180 
or b2k, N).
(that doesn't mean that I don't trust you; just share info)

I just install a 36Gb lvd disk on my b2k (ST336704LC HP supply) on the built
in scsi-controler which is of model <895a>(,rev 0x1) and all seems to works
fine.

> OTC this w
e I still experiment such a scsi terminator pb: I recover a
> lvd 30g
> scsi-disk (sun); I find a converter sca2 80pins sca 64pins but
> a cable with terminator for hvd disk. The disk seems to works fine
> untill the terminator warm to much then I 
ot scsi parity errors. And
> without terminator the controler do not se
> the disk at all?

That's actually the first time that I hear of a SCSI terminator
overheating. Perhaps you shouldn't overclock your SCSI bus then ;))))

But seriously, I h
ve had lots of troubles with 80pins to 64pins
converters and UW to U-SCSI
>converters. Quite often they didn't work
for some harddisk and others worked fine. I don't trust these converters!

Hmm to say everything: the converter came from a interna
 UW-disk of a k360,
the cable and its terminator from a D380 and nothing was foreseen for new
lvd :(.
(but that was just a do-it-yourself test because no shop of scsi spare part
near home :O )

> >hppa64-gcc (3.2.3, from ftp.p-l.org unofficial-de
s)
> >  seems to work fine but obviously ipt_limit.o is miscompiled:
> >  I ca
> insmod it, but iptable wouldn't recognize the --limit* options.
> >  There are still some problems with some modules and canonicalize_funcptr,
> >
> Are you sure thi
 is with hppa64-gcc (iirc canonicalize.., was just
> recently backport to 3.2)?

>
> [...]

I thought so. The canonicalize_* stuff showed up when compiling with
gcc-3.3 (I forgot this to mention), but I thought they showed up in
3.2 (64bit). Ma
be I just can't remeber this one correctly.
But the iptable_limit error is definite
>y a hppa64-gcc-3.2.3 issue
(or a kernel issue with hppa64 ;)

Well gcc-hppa64 pkg is a bit out dated but that is all is available.
And I do not found courage to 
oolchain the last gcc-3.3 :(

>
> >  Man, gcc-3.3 is SLOW! it takes ages to compile the kernel!
> >
> >  Kernel compiled with 3.3 definitely have a bogomips problem (they report
> >  0.8 instead of about 470 on a C2
>0);

This might actually b
 PA8000 specific ...

> >  The kernel takes forever to boot up (it 'waits' for over one minute
> >  after palo loads the kernel (right after the 'switch to another console'
> >  message)), propably because of the bogomi
>s calculation.

...my PA
book with the same kernel & gcc-3.3 doesn't hang!

> >  Also the userspace programme 'bogomips' has the same issue.
> >

Sorry could not help (no clue of what bogomips is: just see on my i386 but
no trace in my hppa dmesg?)

> >  Apart to make 
rom this issues, gcc-3.3 produces a kernel that is at
> >  least as stable as th
>se compiled with 3.0 or 3.2

I'll send the config file as soon as I'm back home (tomorrow)

No problem (I curoius to compare on the hw I test here)

> btw which g
c-3.3 release do you use?

the latest in testing (no prerelease anymore)

Well I used last unstable, let see


Joel




---------------------------------
Dcouvrez les 6 cls et gagnez le Club Med  Vie avec Tiscali
http://www.tiscali.be/nl/subs/tiscali4life/default.asp?lang=fr




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> >hppa64-gcc (3.2.3, from ftp.p-l.org unofficial-debs)
> >  seems to work fine but obviously ipt_limit.o is miscompiled:
> >  I can insmod it, but iptable wouldn't recognize the --limit* options.
> >  There are still some problems with some modules and canonicalize_funcptr,
> >
> Are you sure this is with hppa64-gcc (iirc canonicalize.., was just 
> recently backport to 3.2)?

hppa64-gcc does not canonicalize function pointers.

> >  Man, gcc-3.3 is SLOW! it takes ages to compile the kernel!

I suspect this is related to changes in the inlining model.  This is
definitely a problem with certain C++ applications.  If anybody can
generate profile and/or pass timing data for 3.3 versus 3.0.4, I
would like to see them.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Sun, Jun 01, 2003 at 02:05:20PM +0000, Bjoern A. Zeeb wrote:
> When palo cannot open the kernel and errors out shouldn't it fall back
> to the dialog and ask one to which fields to change instead of simply
> running into a dead end where I think I can only recover from with
> physical access to the machine ?

The same issue has annoyed me too.
But not enough to hack on palo. I only work on machines remotely
if I have remote power control (eg A500).

Paul Bame is happy to take any patches people have to improve
this behaviour.  Source is available via anon CVS:
	cvs -d pserver:anonymous@cvs.parisc-linux.org login
	cvs -d pserver:anonymous@cvs.parisc-linux.org co palo

hth,
grant


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On Mon, 2 Jun 2003, Grant Grundler wrote:

Hi,

> On Sun, Jun 01, 2003 at 02:05:20PM +0000, Bjoern A. Zeeb wrote:
> > When palo cannot open the kernel and errors out shouldn't it fall back
> > to the dialog and ask one to which fields to change instead of simply
> > running into a dead end where I think I can only recover from with
> > physical access to the machine ?
>
> The same issue has annoyed me too.
> But not enough to hack on palo. I only work on machines remotely
> if I have remote power control (eg A500).
>
> Paul Bame is happy to take any patches people have to improve
> this behaviour.  Source is available via anon CVS:
> 	cvs -d pserver:anonymous@cvs.parisc-linux.org login
> 	cvs -d pserver:anonymous@cvs.parisc-linux.org co palo

on sunday eve I already dowloaded 1.2 src tarball and had a quick look
at it. I may come up with a very dirty quick hack but I really hate
gotos in C.

The Problem is that I am currently in the middle of my final exams.
Perhaps I might come up with a patch next weekend.

-- 
Greetings

Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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Joel Soete writes:
> Well gcc-hppa64 pkg is a bit out dated but that is all is available.
> And I do not found courage to 
> oolchain the last gcc-3.3 :(

maybe it worth adding the biarch patch that debian-{sparc,s390,i386}
add for hppa as well, so you can use gcc-3.3 -m64 to build. binutils
already support hppa64, so patches for glibc and gcc are needed.

	Matthias


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On Mon, 2 Jun 2003, Bjoern A. Zeeb wrote:

> > > When palo cannot open the kernel and errors out shouldn't it fall back
> > > to the dialog and ask one to which fields to change instead of simply
> > > running into a dead end where I think I can only recover from with
> > > physical access to the machine ?
> >
> > The same issue has annoyed me too.
> > But not enough to hack on palo. I only work on machines remotely
> > if I have remote power control (eg A500).
> >
> > Paul Bame is happy to take any patches people have to improve
> > this behaviour.  Source is available via anon CVS:
> > 	cvs -d pserver:anonymous@cvs.parisc-linux.org login
> > 	cvs -d pserver:anonymous@cvs.parisc-linux.org co palo
>
> on sunday eve I already dowloaded 1.2 src tarball and had a quick look
> at it. I may come up with a very dirty quick hack but I really hate
> gotos in C.
>
> The Problem is that I am currently in the middle of my final exams.
> Perhaps I might come up with a patch next weekend.

forget next weekend ;-) Though the machine time is out of sync :(

a) I am no debian package builder but in debian/rules dh_testdir is
unknown - whatever it should do - as are a lotta other things. Seems
some package(?) is missing locally.

b) going to test (press me your thumbs it will work else I will
   have to find a kernel to tftp boot ...) ...
   going back to my old 2.5.60-pa1 instead of 69 typo...
   still old palo on bootup ... maybe installing the new one would be
   better for testing ;-))

c) *hhm* debian/rules build doesn't do make iplboot ? ok, doing and
   installing manually ...

d) re-run palo

e) reboot 'n' pray ... (is this a song ? ;-)

f) Bingo:

--- cut ---
palo ipl 1.2bz01 bz@apollo Mon May 26 04:02:26 UTC 2003

Partition Start(MB) End(MB) Id Type
1               1      30   f0 Palo
2              31     156   82 swap
3             157    2046   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 2955343 bytes @ 0x48000

Command line for kernel: 'root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0 palo_kernel=3/boot/vmlinux-2.5.60-pa1'
Selected kernel: /boot/vmlinux-2.5.60-pa1 from partition 3
ERROR: open /boot/vmlinux-2.5.60-pa1 from partition 3 failed
Current command line:
3/boot/vmlinux-2.5.60-pa1 root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0
 0: 3/boot/vmlinux-2.5.60-pa1
 1: root=/dev/sdb3
 2: HOME=/
 3: TERM=linux
 4: console=ttyS0

Edit which field?
(or 'b' to boot with this command line)? 0
3/boot/vmlinux-2.5.69-pa435
Current command line:
3/boot/vmlinux-2.5.69-pa435 root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0
 0: 3/boot/vmlinux-2.5.69-pa435
 1: root=/dev/sdb3
 2: HOME=/
 3: TERM=linux
 4: console=ttyS0

Edit which field?
(or 'b' to boot with this command line)? b

Command line for kernel: 'root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0 palo_kernel=3/boot/vmlinux-2.5.69-pa435'
Selected kernel: /boot/vmlinux-2.5.69-pa435 from partition 3
ERROR: open /boot/vmlinux-2.5.69-pa435 from partition 3 failed
Current command line:
3/boot/vmlinux-2.5.69-pa435 root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0
 0: 3/boot/vmlinux-2.5.69-pa435
 1: root=/dev/sdb3
 2: HOME=/
 3: TERM=linux
 4: console=ttyS0

Edit which field?
(or 'b' to boot with this command line)? 0
3/boot/vmlinux-2.5.69-pa1
Current command line:
3/boot/vmlinux-2.5.69-pa1 root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0
 0: 3/boot/vmlinux-2.5.69-pa1
 1: root=/dev/sdb3
 2: HOME=/
 3: TERM=linux
 4: console=ttyS0

Edit which field?
(or 'b' to boot with this command line)? b

Command line for kernel: 'root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0 palo_kernel=3/boot/vmlinux-2.5.69-pa1'
Selected kernel: /boot/vmlinux-2.5.69-pa1 from partition 3
ELF32 executable
Entry 001002a0 first 00100000 n 3
Segment 0 load 00100000 size 1688080 mediaptr 0x1000
Segment 1 load 0029e000 size 307316 mediaptr 0x19e000
Segment 2 load 002ec000 size 438400 mediaptr 0x1ea000
...
--- /cut ---


g) here is the patch. Thanks I remember basic for the goto ;-)
peherhaps ignore the part with the version number ...


--- ./ipl/ipl.c.orig	2003-01-14 19:44:49.000000000 +0000
+++ ./ipl/ipl.c	2003-05-26 03:34:03.000000000 +0000
@@ -367,6 +367,7 @@
 	}
     }

+interactive_loop:
     if (is_interactive)
 	interact(&f);

@@ -510,7 +511,9 @@
 	    (partition[kern_part - 1].id != 0x83 && partition[kern_part - 1].id != 0xfd) )
 	{
 	    printf("ERROR: Partition %d must be ext2\n", kern_part);
-	    while(1);
+
+	    is_interactive = 1;
+	    goto interactive_loop;
 	}

 	pp = &partition[kern_part - 1];
@@ -527,7 +530,9 @@
 	{
 	    printf("ERROR: open %s from partition %d failed\n",
 		kern_name, kern_part);
-	    while(1);
+
+	    is_interactive = 1;
+	    goto interactive_loop;
 	}

 	bkern_fd = byteio_open(kern_fd);
--- ./lib/common.h.orig	2003-05-26 03:34:11.000000000 +0000
+++ ./lib/common.h	2003-05-26 03:34:18.000000000 +0000
@@ -11,7 +11,7 @@
 #include <asm/byteorder.h>
 #include <linux/genhd.h>

-#define PALOVERSION "1.2"
+#define PALOVERSION "1.2bz01"

 /* size of I/O block used in HP firmware */
 #define FW_BLOCKSIZE	2048


-- 
Greetings

Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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On Mon, 2 Jun 2003, Joel Soete wrote:

> > I have/had this prolems with both (old/new) Symbios drivers!
>
> Curious, last v2 I do not have any more pb (neither on b180 or b2k, N).
> (that doesn't mean that I don't trust you; just share info)

trust me! ;)

I always tried the newest kernels and SYM2 in hope it will solve my
problem!

I didn't have problems with the UW-SCSI that was originally in the HP - as
far as I can remember - these problems just show up with this
'replacement' SE-SCSI Segate Harddisk.

> I just install a 36Gb lvd disk on my b2k (ST336704LC HP supply) on the built
> in scsi-controler which is of model <895a>(,rev 0x1) and all seems to works
> fine.

Yeah, I also think there is no problem with LVD, it's just appears to
happens with the SE-SCSI bus and this hard disk (and the hard disk seems
to be fine if connected to other computers).

[... you describe your SCSI problems ...]

> Hmm to say everything: the converter came from a internal UW-disk of a
> k360, the cable and its terminator from a D380 and nothing was foreseen
> for new lvd :(.
> (but that was just a do-it-yourself test because no shop of scsi spare part
> near home :O )

the same here. The only way to get SCSI stuff are online-shops :(

> > > hppa64-gcc (3.2.3, from ftp.p-l.org unofficial-debs)
> > >  seems to work fine but obviously ipt_limit.o is miscompiled:
> > >  I can insmod it, but iptable wouldn't recognize the --limit* options.
> > >  There are still some problems with some modules and canonicalize_funcptr,

[... and then a small correction ...]

> I thought so. The canonicalize_* stuff showed up when compiling with
> gcc-3.3 (I forgot this to mention), but I thought they showed up in
> 3.2 (64bit). Maybe I just can't remeber this one correctly.
> But the iptable_limit error is definitey a hppa64-gcc-3.2.3 issue
> (or a kernel issue with hppa64 ;)
>
> Well gcc-hppa64 pkg is a bit out dated but that is all is available.
> And I do not found courage to toolchain the last gcc-3.3 :(

[... some stuff about wrong Bogomips value & gcc-3.3 ]

> Sorry could not help (no clue of what bogomips is: just see on my i386 but
> no trace in my hppa dmesg?)

try 'cat /proc/cpuinfo'.

It's an measurement for internal use in the kernel, it's not meant to be
a performance benchmark or so (it's value is dependend on the CPU arch,
you can't even compare bogomips between AMD and Intel processors).
However many people misue it as a performance indicator.

On PC with Intel or PA-RISC CPUs the bogomips value is usually something
like "2x (CPU MHz)", on other architectures it might be different.

There is also a userspace programme available called 'bogomips' that
does the same thing, but might produce slightly lower values (since you
are running it while multitasking and not at bootup time in kernel space)

Max


PS: attached is my .config

---275789367-1590063830-1054585206=:1415
Content-Type: TEXT/PLAIN; charset=US-ASCII; name="config-2.4.20-pa35-gcc-3.3"
Content-Transfer-Encoding: BASE64
Content-ID: <Pine.LNX.4.44.0306022120060.1415@sal.ucc.ie>
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---275789367-1590063830-1054585206=:1415--


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: [hppa] binutils will not build shared libraries with external deps?
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> On Mon, May 26, 2003 at 10:22:51PM -0700, Randolph Chung wrote:
> > tausq@ios:~$ gcc -shared -fPIC -o blah.so blah.c
> > /tmp/ccC3fZeH.o(.text+0x1c): In function `call_foo':
> > : undefined reference to `foo'
> 
> This should fix it.  Would someone mind applying it for me?  I'm in
> transit at the moment and internet access is slow and flaky.  2.14
> branch too, I guess.
> 
> 	* elf32-hppa.c (elf32_hppa_relocate_section): Delete bogus
> 	undefined_symbol call.

I'm not fully up to speed on this but there still appear to be problems
with undefined symbols in shared libraries:

gcc -L/home/dave/binutils-2.14.90/objdir/ld -g -g -O2  -DHIDDEN_TEST -fpic -B/ho
me/dave/binutils-2.14.90/objdir/ld/tmpdir/gas/ -I/home/dave/binutils-2.14.90/src
/ld/testsuite/ld-elfvsb -g -O2  -c /home/dave/binutils-2.14.90/src/ld/testsuite/
ld-elfvsb/sh1.c -o tmpdir/sh1p.o
gcc -L/home/dave/binutils-2.14.90/objdir/ld -g -g -O2  -DHIDDEN_TEST -fpic -B/ho
me/dave/binutils-2.14.90/objdir/ld/tmpdir/gas/ -I/home/dave/binutils-2.14.90/src
/ld/testsuite/ld-elfvsb -g -O2  -c /home/dave/binutils-2.14.90/src/ld/testsuite/
ld-elfvsb/sh2.c -o tmpdir/sh2p.o
gcc -L/home/dave/binutils-2.14.90/objdir/ld -B/home/dave/binutils-2.14.90/objdir
/ld/tmpdir/ld/ -L/home/dave/opt/gnu/hppa-linux/lib -L/home/dave/opt/gnu/lib -L/u
sr/local/lib -L/lib -L/usr/lib  -o tmpdir/vp.so -shared  tmpdir/sh1p.o tmpdir/sh
2p.o
tmpdir/sh1p.o(.text+0x0): In function `shlib_mainvar':
/home/dave/binutils-2.14.90/src/ld/testsuite/ld-elfvsb/sh1.c:32: undefined refer
ence to `mainvar'
...
FAIL: visibility (hidden)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] compiler & kernel
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On Mon, Jun 02, 2003 at 09:20:06PM +0100, M. Grabert wrote:
> I didn't have problems with the UW-SCSI that was originally in the HP - as
> far as I can remember - these problems just show up with this
> 'replacement' SE-SCSI Segate Harddisk.

Was the original configuration using LVD?
(SE requires much shorter cables than LVD for the same transfer rates)

Have you looked for firmware updates for the disk?
Have you tried forcing the SCSI bus to a slower transfer rate?

> Yeah, I also think there is no problem with LVD, it's just appears to
> happens with the SE-SCSI bus and this hard disk (and the hard disk seems
> to be fine if connected to other computers).

Smells like a cable length/termination issue.

grant


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Subject: Re: [parisc-linux] Re: [hppa] binutils will not build shared libraries with external deps?
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On Mon, Jun 02, 2003 at 05:10:38PM -0400, John David Anglin wrote:
> tmpdir/sh1p.o(.text+0x0): In function `shlib_mainvar':
> /home/dave/binutils-2.14.90/src/ld/testsuite/ld-elfvsb/sh1.c:32: undefined refer
> ence to `mainvar'
> ...
> FAIL: visibility (hidden)

Fixing this one probably requires porting some of the recent changes
I made for x86 and ppc to hppa.  See SYMBOL_REFERENCES_LOCAL and
SYMBOL_CALLS_LOCAL.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre


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>-- Original Message --
>Subject: Re: [parisc-linux] compiler & kernel
>To: joel.soete@tiscali.be (Joel Soete)
>Date: Mon, 2 Jun 2003 13:32:20 -0400 (EDT)
>From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>Cc: xam@cs.ucc.ie, parisc-linux@lists.parisc-linux.org
>
>
>> >hppa64-gcc (3.2.3, from ftp.p-l.org unofficial-debs)
> >  seems to work fine but obviously ipt_limit.o is miscompiled:
> >  I can insmod it, but iptable wouldn't recognize the --limit* options.
> >  There are still some problems with some modules
>and canonicalize_funcptr,
> >
> Are you sure this is with hppa64-gcc (iirc canonicalize.., was just 
> recently backport to 3.2)?

> hppa64-gcc does not canonicalize function pointers.

Thanks to confirm (without my full mb I was not quiet sure of my memory :)
)


> >  Man, gcc-3.3 is SLOW! it takes ages to compile the kerne
>!

> I suspect this is related to changes in the inlining model.  This is
> definitely a problem with certain C++ applications. 

I did not observe this behaviour on my b180 b2k or N with gcc-3.3 to compile
various _kernel_ (not C++) 2.4.20 or 2.4.21  (just always anoying canonicalize_
pb and execpted (void *) cast work-around for builtin function, I do not
yet find an easy way to solved module pb)

btw I notice another difference between 32bits and 64bits kernels:
# file vmlinux-2.4.21-rc6-pa35
vmlinux-2.4.21-rc6-pa35: ELF 32-bit MSB ..., statically linked, not stripped

# file vmlinux-2.4.21-rc4-pa35
vmlinux-2.4.21-rc4-pa35: ELF 64-bit MSB ..., dynamically linked (uses share
libs), ...

In the 32-bits case I well understand that kernel was staticaly linked but
I but surprised that 64-bit kernel is dynamically linked? 


> If anybody can
> generate profile and/or pass timing data for 3.3 versus 3.0.4, I
> would like to see them.

Anyway could you let me know how to 'generate this profile'


Thanks for attention,
    Joel

---------------------------------
Dcouvrez les 6 cls et gagnez le Club Med  Vie avec Tiscali
http://www.tiscali.be/nl/subs/tiscali4life/default.asp?lang=fr




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I will be out of the office starting June 3, 2003 and will not return until
June 4, 2003.




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> # file vmlinux-2.4.21-rc4-pa35
> vmlinux-2.4.21-rc4-pa35: ELF 64-bit MSB ..., dynamically linked (uses share
> libs), ...
> 
> In the 32-bits case I well understand that kernel was staticaly linked but
> I but surprised that 64-bit kernel is dynamically linked? 

This is a limitation of the 64-bit linker.  Binaries still need an
interpreter for startup even when linked with -static.  This probably
could be fixed but the use of static binaries under 64-bit hpux is
discouraged.  Under hpux, the linker needs to define some extra symbols
when a static binary is created.

> Anyway could you let me know how to 'generate this profile'

Look at the -Q, -ftime-report and -fmem-report options.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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--CSmtpMsgPart123X456_000_01954402--



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From: "Joel Soete" <jsoe0708@tiscali.be>
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>
>> # file vmlinux-2.4.21-rc4-pa35
> vmlinux-2.4.21-rc4-pa35: ELF 64-bit MSB ..., dynamically linked (uses share
> libs), ...
> 
> In the 32-bits case I well understand that kernel was staticaly linked
but
> I but surprised that 64-bit kernel is dyn
>mically linked? 

This is a limitation of the 64-bit linker.  Binaries still need an
interpreter for startup even when linked with -static.  This probably
could be fixed but the use of static binaries under 64-bit hpux is
discouraged.  Under hpux,
>the linker needs to define some extra symbols
when a static binary is created.

> Anyway could you let me know how to 'generate this profile'

Look at the -Q, -ftime-report and -fmem-report options.

Thanks for all explanation.

For the last point I edit Makefile and in CFLAGS I added the tree mentionned
options. I just start to recompile a kernel 2.4.20 and log everything but
I think that it will increase dramaticaly the overall volume: is that all
will really help you or better some typical comparison?

Joel

---------------------------------
Dcouvrez les 6 cls et gagnez le Club Med  Vie avec Tiscali
http://www.tiscali.be/nl/subs/tiscali4life/default.asp?lang=fr




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Subject: [parisc-linux] RAV AntiVirus scan results. (fwd)
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I got this from someone on the list.  Fix your box.

---------- Forwarded message ----------
Date: Wed, 03 Jun 2003 07:19:56 -0700
From: ravms@nateng.com
To: parisc-linux-admin@lists.parisc-linux.org
Cc: chandler@nateng.com
Subject: RAV AntiVirus scan results.


RAV AntiVirus for Linux i686 version: 8.3.1 (snapshot-20011106)
Copyright (c) 1996-2001 GeCAD The Software Company. All rights reserved.
Registered version for 2 domain(s).
Running on host: mail.nateng.com

The file (part0001:approved.pif) attached to mail (with subject: [parisc-linux] Re: Your application) sent by parisc-linux-admin@lists.parisc-linux.org to chandler@nateng.com,
is infected with virus: Win32/Sobig.C@mm.
Cannot clean this file.
The file was successfully deleted by RAV AntiVirus.

Scan engine 8.11 for i386.
Last update: Tue Jun  3 03:05:41 2003
Scanning for 78165 malwares (viruses, trojans and worms).

To get a free 60-days evaluation version of RAV AntiVirus v8
(yet fully functional) please visit:

   http://www.ravantivirus.com


From - Thu Nov 08 21:27:59 2018
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Subject: Re: [parisc-linux] compiler & kernel
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Hi Max,

>
>Attachment: config-2.4.20-pa35-gcc-3.3
>
32-bits first;
I test this config with gcc-3.3-2 and binutils 2.13.90.0.18-7 but I encounter
following pb:

`gcc-3.3 -print-libgcc-file-name` /usr/src/linux-2.4.20-pa35/arch/parisc/lib/lib.a

/usr/src/linux-2.4.20-pa35/lib/lib.a  \
        --end-group \
        -o vmlinux
drivers/net/wireless/wireless_net.o(.init.text+0x78): In function `init_orinoco_cs':
: undefined reference to `CardServices'
drivers/net/wireless/wireless_net.o(.ini
.text+0xac): In function `init_orinoco_cs':
: undefined reference to `register_pccard_driver'
drivers/net/wireless/wireless_net.o(.exit.text+0x2c): In function `exit_orinoco_cs':
: undefined reference to `unregister_pccard_driver'
drivers/net/wirel
ss/wireless_net.o(.text.cs_error+0x18): In function `cs_error':
: undefined reference to `CardServices'
drivers/net/wireless/wireless_net.o(.text.orinoco_cs_cor_reset+0x48): In
function `orinoco_cs_cor_reset':
: undefined reference to `CardServices

drivers/net/wireless/wireless_net.o(.text.orinoco_cs_cor_reset+0x74): In
function `orinoco_cs_cor_reset':
: undefined reference to `CardServices'
drivers/net/wireless/wireless_net.o(.text.orinoco_cs_cor_reset+0xd4): In
function `orinoco_cs_cor_re
et':
: undefined reference to `CardServices'
drivers/net/wireless/wireless_net.o(.text.orinoco_cs_attach+0x108): In function
`orinoco_cs_attach':
: undefined reference to `CardServices'
drivers/net/wireless/wireless_net.o(.text.orinoco_cs_detach+0
90): more
undefined references to `CardServices' follow
make: *** [vmlinux] Error 1

And the very same with gcc-3.0.4-16 {(which also backport canonicalize_*
?)}

Any idea?

Now overall results:
[the two test made exactely the same number of 
cc (grep "^gcc" blabla |
wc -l == 968)]

gcc-3.3

start: k-2.4.20-pa35-cfg-gcc33:Tue Jun  3 18:22:57 CEST 2003
end:   k-2.4.20-pa35-cfg-gcc33:Tue Jun  3 18:41:31 CEST 2003
(About 19 min)

gcc-3.0
start: k-2.4.20-pa35-cfg-gcc30:Tue Jun  3 19:1
:44 CEST 2003
end:   k-2.4.20-pa35-cfg-gcc30:Tue Jun  3 19:30:46 CEST 2003
(about 17 min)

I am not enough happy because not yet reach to obtain a kernel; I will try
tomorrow :(

Cheers,
    Joel

PS: I run those draft test on a b2k running a
kernel compile with gcc-3.3
(32-bits) and the BogoMIPS in dmesg is 799.53 (about 2 * 400MHz of cpu).
On the other hand I will made same test on a N (ucp) running a 64-bit kernel
with BogoMIPS announced as 1097.72 (about 2 * 550 Mhz of cpu).

Well 
hat is only draft info, I am waiting to run your kernel on the two
machime to see?


>
>Attachment: config-2.4.20-pa35-64
>

(I hope tomorrow )




---------------------------------
Dcouvrez les 6 cls et gagnez le Club Med  Vie avec Tiscali
http://www.tiscali.be/nl/subs/tiscali4life/default.asp?lang=fr




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On Tue, Jun 03, 2003 at 10:18:03AM -0400, John David Anglin wrote:
> ...but the use of static binaries under 64-bit hpux is discouraged.

That depends on who you talk to.

The library maintainers cring at the thought of an application
statically linked and forever carrying around bugs in it.

But the perf folks get annoyed that each process has to allocate
RAM for *all* the data space used by a shared lib vs just for
the parts that get linked in statically. (I hope I remember this
correctly).

grant


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Does anyone know what the A6150-60002 (A6150A) is?
It's a PCI VGA card that shipped with my rp5470...  But I am having a
fairly difficult time figureing out what it is.


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It's a Visualize FX-E.

On Tuesday, Jun 3, 2003, at 22:33 US/Eastern, Sir Ace wrote:

> Does anyone know what the A6150-60002 (A6150A) is?
> It's a PCI VGA card that shipped with my rp5470...  But I am having a
> fairly difficult time figureing out what it is.



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> On Tue, Jun 03, 2003 at 10:18:03AM -0400, John David Anglin wrote:
> > ...but the use of static binaries under 64-bit hpux is discouraged.
> 
> That depends on who you talk to.

Possibly, I was reading too much into what is stated in the pa64 runtime
supplement.  However, the default behavior of the HP 64-bit linker is to
link dynamically, even if no DLLs are found at link time.  It doesn't
really matter from a maintenance standpoint if a binary is dynamic or
static if it is solely linked with archive libraries.  I suspect that
one reason for this default is that internationalization support requires
linking with libdld.sl and using the dynamic loader.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Mon, 2 Jun 2003, Bjoern A. Zeeb wrote:

Hi,

> g) here is the patch. Thanks I remember basic for the goto ;-)
> peherhaps ignore the part with the version number ...

well please - before commiting - verifiy ... I think there is a
problem maybe with some pointer ... Will have to verify all possible
paths ... going to re-check and let you know.

--- cut ---
/boot/vmlinux-2.5.69-pa1 74 00L 1X c 1Q root=/dev/sdb3 HOME=/ TERM=linux conso0
 0: 3/boot/vmlinux-2.5.69-pa1
 1: 74
 2: 00L
 3: 1X
 4: c
 5: 1Q
 6: root=/dev/sdb3
 7: HOME=/
 8: TERM=linux
 9: console=ttyS0

Edit which field?
(or 'b' to boot with this command line)?
--- cut ---

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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In-Reply-To: <20030602230949.GB17437@ozlabs.au.ibm.com> from "Alan Modra" at Jun 3, 2003 09:09:49 am
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> On Mon, Jun 02, 2003 at 05:10:38PM -0400, John David Anglin wrote:
> > tmpdir/sh1p.o(.text+0x0): In function `shlib_mainvar':
> > /home/dave/binutils-2.14.90/src/ld/testsuite/ld-elfvsb/sh1.c:32: undefined refer
> > ence to `mainvar'
> > ...
> > FAIL: visibility (hidden)
> 
> Fixing this one probably requires porting some of the recent changes
> I made for x86 and ppc to hppa.  See SYMBOL_REFERENCES_LOCAL and
> SYMBOL_CALLS_LOCAL.

Nope.  This was caused by the previous bug and the change to using
gcc as the driver program to run the newly built linker.  Using `-B'
doesn't override the GCC configure option `--with-ld='.  The same
problem occurs with using gcc to run the newly build assembler
(`-B' doesn't override `--with-as=').  I think we need to revert
to the previous technique for running these tools in the ld
testsuite.

To work around this problem, I installed the newly built tools.
This fixed most of the ld FAILS but we are still left with the
following:

Running /home/dave/binutils-2.14.90/src/ld/testsuite/ld-elfvsb/elfvsb.exp ...
FAIL: visibility (hidden_undef_def)
FAIL: visibility (hidden_undef_def) (PIC main)
FAIL: visibility (hidden_weak)
FAIL: visibility (hidden_weak) (PIC main)
FAIL: visibility (protected_weak)
FAIL: visibility (protected_weak) (PIC main)
Running /home/dave/binutils-2.14.90/src/ld/testsuite/ld-elfweak/elfweak.exp ...
FAIL: ELF weak func first DSO
FAIL: ELF weak func last DSO
FAIL: ELF weak data first DSO
FAIL: ELF weak data last DSO
FAIL: ELF weak data first DSO common
FAIL: ELF weak data last DSO common

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Tue, 3 Jun 2003, Joel Soete wrote:

> Hi Max,
>
> >
> >Attachment: config-2.4.20-pa35-gcc-3.3
> >
> 32-bits first;
> I test this config with gcc-3.3-2 and binutils 2.13.90.0.18-7 but I encounter
> following pb:
>
> `gcc-3.3 -print-libgcc-file-name` /usr/src/linux-2.4.20-pa35/arch/parisc/lib/lib.a
>
> /usr/src/linux-2.4.20-pa35/lib/lib.a  \
>         --end-group \
>         -o vmlinux
> drivers/net/wireless/wireless_net.o(.init.text+0x78): In function `init_orinoco_cs':
> : undefined reference to `CardServices'
> drivers/net/wireless/wireless_net.o(.ini
> .text+0xac): In function `init_orinoco_cs':
> : undefined reference to `register_pccard_driver'
> drivers/net/wireless/wireless_net.o(.exit.text+0x2c): In function `exit_orinoco_cs':
> : undefined reference to `unregister_pccard_driver'
> drivers/net/wirel
> ss/wireless_net.o(.text.cs_error+0x18): In function `cs_error':
> : undefined reference to `CardServices'
> drivers/net/wireless/wireless_net.o(.text.orinoco_cs_cor_reset+0x48): In
> function `orinoco_cs_cor_reset':
> : undefined reference to `CardServices
>
> drivers/net/wireless/wireless_net.o(.text.orinoco_cs_cor_reset+0x74): In
> function `orinoco_cs_cor_reset':
> : undefined reference to `CardServices'
> drivers/net/wireless/wireless_net.o(.text.orinoco_cs_cor_reset+0xd4): In
> function `orinoco_cs_cor_re
> et':
> : undefined reference to `CardServices'
> drivers/net/wireless/wireless_net.o(.text.orinoco_cs_attach+0x108): In function
> `orinoco_cs_attach':
> : undefined reference to `CardServices'
> drivers/net/wireless/wireless_net.o(.text.orinoco_cs_detach+0
> 90): more
> undefined references to `CardServices' follow
> make: *** [vmlinux] Error 1
>
> And the very same with gcc-3.0.4-16 {(which also backport canonicalize_*
> ?)}
>
> Any idea?

Yes, I enabled PCMCIA specific bits in arch/parisc/config.in. I wanted
to get a PCMCIA wireless network card working.
Currently hppa doesn't give you the option to select PCMCIA, so you have
to modify the config.in so that you can select it. Just copy the PCMCIA
bits it from arch/i386/config.in to arch/parisc/config.in.

OR simpler:

Disable wireless network (orinoco, hermes, orinoco_cs etc.).
I currently don't have a wireless card, and the same problems occurred
also without the driver for wireless card built-in.

> Now overall results:
> [the two test made exactely the same number of
> cc (grep "^gcc" blabla |
> wc -l == 968)]
>
> gcc-3.3
>
> start: k-2.4.20-pa35-cfg-gcc33:Tue Jun  3 18:22:57 CEST 2003
> end:   k-2.4.20-pa35-cfg-gcc33:Tue Jun  3 18:41:31 CEST 2003
> (About 19 min)
>
> gcc-3.0
> start: k-2.4.20-pa35-cfg-gcc30:Tue Jun  3 19:1
> :44 CEST 2003
> end:   k-2.4.20-pa35-cfg-gcc30:Tue Jun  3 19:30:46 CEST 2003
> (about 17 min)
>
> I am not enough happy because not yet reach to obtain a kernel; I will try
> tomorrow :(
>
> Cheers,
>     Joel
>
> PS: I run those draft test on a b2k running a
> kernel compile with gcc-3.3
> (32-bits) and the BogoMIPS in dmesg is 799.53 (about 2 * 400MHz of cpu).
> On the other hand I will made same test on a N (ucp) running a 64-bit kernel
> with BogoMIPS announced as 1097.72 (about 2 * 550 Mhz of cpu).

The BogoMIPS problem is solved: it only occurred with a gcc-3.3
Debian-prerelease. It's normal now with gcc-3.3_3.3-2.hppa.deb.

Attached my current dmesg and a dmesg of an older kernel with the
BogoMIPS-problem (latter also used a TokenRing card, but the card was not
connected to a TR swich/hub, therefore the "Ring Lobe failures")

Thanks, Max

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From: "M. Grabert" <xam@cs.ucc.ie>
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Sorry for replying my own mail:


The BogoMIPS problem was in fact due to a bug in a gcc-3.3 (up to debian
prerelease 20030415). However it was already fixed in Debian prerelease
20030509.


the last mail contained two attachments:

- dmesg (the dmesg of my current -pa35 kernel, using SYM1 and 53c700 from
         2.4.19-pa2, no BogoMIPS problem) and

- dmesg2 (FIRST: the dmesg of a vanilla -pa35 kernel, using SYM2 and
          original 53c700, BogoMIPS problem.
          SECOND:
          You can see it doesn't even boot ('target is suffering from tag
          starvation' and the kernel hang) so I rebooted to 2.4.19-pa2.
          It's dmesg is also in this file.

Thanks, Max



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From: "CARSON,KEVIN (HP-Canada,ex1)" <kevin.carson@hp.com>
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Subject: [parisc-linux] Contributors near Vancouver Canada?
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Are there any people who contribute to the parisc-linux project near
Vancouver, Canada?  Like within a close drive to pick stuff up, perhaps?

Kevin


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From: Randolph Chung <tausq@debian.org>
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Hi *,

There is going to be a Debian/hppa BOF at OLS this year:
http://www.linuxsymposium.org/2003/view_abstract.php?talk=162

This is an informal survey: if you plan to attend, please drop me 
an email and send me suggested topics *via private mail*.

My current thoughts is to do a short presentation on what the
debian/hppa port is about, and open the floor to discussions on topics
of interest (e.g. toolchain, 64-bit userspace, SMP kernels, what have
you...). Other suggestions are welcome as well. I will post an updated
proposal once I've collected more info. Personally I think other Debian/
porting issues will also be interesting for the BOF, but we'll see how
it goes.

Oh, and if you are attending OLS, don't forget about the keysigning!
http://www.linuxsymposium.org/2003/view_abstract.php?talk=170

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

p.s. why is this crossposted to the ia64 list? well, just because. :-)


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: Re: [parisc-linux] palo II
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Cc: "Grant Grundler" <grundler@parisc-linux.org>,
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Hi Bjoern,

> On Mon, 2 Jun 2003, Bjoern A. Zeeb wrote:
>
> Hi,
>
> > g) here is the patch. Thanks I remember basic for the goto ;-)

Simple and efficent;

> > peherhaps ignore the part with the version number ...
>
> well please - before commiting - verifiy ... I t
ink there is a
> problem maybe with some pointer ... Will have to verify all possible
> paths ... going to re-check and let you know.
>
> --- cut ---
> /boot/vmlinux-2.5.69-pa1 74 00L 1X c 1Q root=/dev/sdb3 HOME=/ TERM=linux
conso0
>  0: 3/boot/vmlinux-2.5.69-pa1
>  1: 74
>  2: 00L
>  3: 1X
>  4: c
>  5: 1Q
>  6: root=/dev/sdb3
>  7: HOME=/
>  8: TERM=linux
>  9: console=ttyS0
>
> Edit which field?
> (or 'b' to boot with this command line)?
> --- cut ---

Hmm how may I reproduce?


btw (as rought draft) I also consider the case if you accidently choose
swap (even on a md), here is the full patch:
=====
diff -Naur --exclude iplboot palo-1.2/debian/changelog palo-1.3/debian/changelog
--- palo-1.2/debian/changelog	2003-01-14
21:07:52.000000000 +0100
+++ palo-1.3/debian/changelog	2003-06-05 11:20:38.000000000 +0200
@@ -1,3 +1,9 @@
+palo (1.3) unstable; urgency=low
+
+  * Comeback to interact if failled to find boot kernel (Bjoern A. Zeeb)
+
+ -- Paul Bame <bame@debian.org>  Tue, 14 Jan 2003 13:06:45 -0700
+
 palo (1.2) unstable; urgency=low

   * Recognize RAID partition types (Martin K. Petersen)
diff -Naur --exclude iplboot palo-1.2/ipl/ipl.c palo-1.3/ipl/ipl.c
--- palo-1.2/ipl/ipl.c	2003-01-14 20:44:49.000000000 +0100
+++ palo-1.3/ipl/ipl.c	2003-06-05 12:56:25.000000000 +0200
@@ -367,6 +367,7 @@
 	}
     }

+interactive_loop:
     if (is_interactive)
 	interact(&f);

@@ -406,7 +407,9 @@
     {
 	printf("ERROR: Requesting kernel from partition %d "
 		    "on unpartitioned media!\n", kern_part);
-	while(1);
+
+        is_interactive = 1;
+        goto interactive_loop;
     }

     if (rd_part != -1 && rd_part != kern_part)
@@ -510,7 +513,9 @@
 	    (partition[kern_part - 1].id != 0x83 && partition[kern_part - 1].id
!= 0xfd) )
 	{
 	    printf("ERROR: Partition %d must be ext2\n", kern_part);
-	    while(1);
+
+            is_interactive = 1;
+            goto interactive_loop;
 	}

 	pp = &partition[kern_part - 1];
@@
-518,8 +523,13 @@
 	part_fd = offset_open(bootdev, 512 * pp->start, 512 * pp->length);

 	mount_fd = ext2_mount(part_fd, 0, 0);
-	if (0) printf("ext2_mount(partition %d) returns %d\n",
-	    kern_part, mount_fd);
+	if (mount_fd < 0){
+            printf("ext2_mount(partition %d) returns %d\n",
+	            kern_part, mount_fd);
+
+            is_interactive = 1;
+            goto interactive_loop;
+	}

 	kern_fd = ext2_open(kern_name);
 	if (0) printf("ext2_open(%s) = %d\n", kern_name
 kern_fd);
@@ -527,7 +537,9 @@
 	{
 	    printf("ERROR: open %s from partition %d failed\n",
 		kern_name, kern_part);
-	    while(1);
+
+            is_interactive = 1;
+            goto interactive_loop;
 	}

 	bkern_fd = byteio_open(kern_fd);
diff -Naur --exclude iplboot palo-1.2/lib/common.h palo-1.3/lib/common.h
--- palo-1.2/lib/common.h	2003-01-14 21:06:14.000000000 +0100
+++ palo-1.3/lib/common.h	2003-06-05 11:53:20.000000000 +0200
@@ -11,7 +11,7 @@
 #include <asm/byteorder.h>

 #include <linux/genhd.h>

-#define PALOVERSION "1.2"
+#define PALOVERSION "1.3"

 /* size of I/O block used in HP firmware */
 #define FW_BLOCKSIZE	2048

====

Up to you to adapt changes in changelog and lib/common.h :)

I a not an expert 
n debian building pkg but to rebuild a source tree i
follow this small recipe:
A) grab palo_1.2.dsc palo_1.2.tar.gz into your test dir
B) dpkg-source -x palo_1.2.dsc
this will extract palo-1.2
C) I rename palo-1.2 into palo-1.3 [according to chang
log revision]
D) cd palo-1.3
E) apply above patch (patch -p1 -i YourPatchFile)
E) dpkg-buildpackage [ 2>&1 | tee ../palo-1.3.bpkg # to log build messages]
on a _linux-parisc_ box it would rebuild iplboot :)

if successfull, you would find in the 
pper dir palo_1.3_hppa.deb dpkg which
you can just install.

hth,
    Joel

PS: another kind thing would be add edition line capability (any idea?)



---------------------------------
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Subject: Re: [parisc-linux] Contributors near Vancouver Canada?
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On Wed, 4 Jun 2003, CARSON,KEVIN (HP-Canada,ex1) wrote:

> Are there any people who contribute to the parisc-linux project near
> Vancouver, Canada?  Like within a close drive to pick stuff up, perhaps?

I have a fellow I can ask in Victoria -- close enough?

-- Russ Herrold



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On Thu, 5 Jun 2003, Joel Soete wrote:

> > problem maybe with some pointer ... Will have to verify all possible
> > paths ... going to re-check and let you know.
> >
> > --- cut ---
> > /boot/vmlinux-2.5.69-pa1 74 00L 1X c 1Q root=/dev/sdb3 HOME=/ TERM=linux conso0
> >  0: 3/boot/vmlinux-2.5.69-pa1
> >  1: 74
> >  2: 00L
> >  3: 1X
> >  4: c
> >  5: 1Q
> >  6: root=/dev/sdb3
> >  7: HOME=/
> >  8: TERM=linux
> >  9: console=ttyS0
> >
> > Edit which field?
> > (or 'b' to boot with this command line)?
> > --- cut ---
>
> Hmm how may I reproduce?

I couldn't yet. It happened just the one time. What I did was:

1. power on apollo
2. log in to the host the serial line was attached to
3. start minicom
4. come back five minutes later (the palo.conf entry has been wrong)
5. find the above on the screen
6. delete line 1 five times
7. change path to kernel
8. boot



[dep building]

I think I am missing a package for all this here where most of the
dh_* are included ...

Me using apt-get source then debian/rules build and finally I cannot
use fakeroot at the moment (glibc issue though downgraded).

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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On Thu, Jun 05, 2003 at 02:14:33PM +0000, Bjoern A. Zeeb wrote:
> I think I am missing a package for all this here where most of the
> dh_* are included ...
> 
> Me using apt-get source then debian/rules build and finally I cannot
> use fakeroot at the moment (glibc issue though downgraded).

use dpkg-buildpackage -rsudo
that'll tell you which deps are missing

or you can apt-get build-dep palo to install palo's build deps.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> I couldn't yet. It happened just the one time. What I did was:
>
> 1. power on apollo
> 2. log in to the host the serial line was attached to
> 3. start minicom
> 4. come back five minute
> later (the palo.conf entry has been wrong)
> 5. fin
 the above on the screen
> 6. delete line 1 five times
> 7. change path to kernel
> 8. boot

Could it be electrical interferences?

[I also use minicom with serial port configured as 9600 8N1 with "Hardware
Flow COntrol : yes" and cleanup "modem and dialing" init and reset strings]

> [dep building]

> I think I am missing a package for all this here where most of the
> dh_* are included ...

the package is debhelper (just in case you would find another file, it exists
a nice search tool in <http://www.debian.org/distrib/packages>; at the
bottom, you can search packages containing the file you know :) )

> Me using apt-get source then debian/rules build and finally I cannot
> use fakeroot at the moment (glibc issue though downgr
ded).

Yes there is some issue with glibc 2.3.1-17, better is 2.3.1-16

Joel





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From - Thu Nov 08 21:28:01 2018
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From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
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Subject: Re: [parisc-linux] palo II
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On Thu, 5 Jun 2003, Joel Soete wrote:

Hi,

> Could it be electrical interferences?

shouldn't but could be. I thaught about some 'missbehaviour' of
minicom but nether had that before (also using cu sometimes).

I'd wait for reports from others if anyone else will see it or have a
more detailed look at the source I find the time. exams done :-)

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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On Thu, 5 Jun 2003, Joel Soete wrote:

Hi,

> Could it be electrical interferences?

got it again. started minicom when it already waited for input.
perhaps that's the problem...
it's the same sequence I got last time for 1 .. 5

--- cut ---
A 74 00L 1X c 1Q
Current command line:
3/boot/vmlinux-2.5.60-pa1A 74 00L 1X c 1Q root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0
 0: 3/boot/vmlinux-2.5.60-pa1A
 1: 74
 2: 00L
 3: 1X
 4: c
 5: 1Q
 6: root=/dev/sdb3
 7: HOME=/
 8: TERM=linux
 9: console=ttyS0

Edit which field?
(or 'b' to boot with this command line)? 0
3/boot/vmlinux-2.5.69-pa1
Current command line:
3/boot/vmlinux-2.5.69-pa1 74 00L 1X c 1Q root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0
 0: 3/boot/vmlinux-2.5.69-pa1
 1: 74
 2: 00L
 3: 1X
 4: c
 5: 1Q
 6: root=/dev/sdb3
 7: HOME=/
 8: TERM=linux
 9: console=ttyS0

Edit which field?
(or 'b' to boot with this command line)? 0
--- /cut ---

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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On Thu, 5 Jun 2003, Bjoern A. Zeeb wrote:

Hi,

> got it again. started minicom when it already waited for input.
> perhaps that's the problem...
> it's the same sequence I got last time for 1 .. 5

sorry for replying to myself but I discovered another thing:

it boots fine also with this command line ???

--- cut ---
Edit which field?
(or 'b' to boot with this command line)? b

Command line for kernel: '74 00L 1X c 1Q root=/dev/sdb3 HOME=/ TERM=linux console=ttyS0 palo_kernel=3/boot/vmlinux-2.5.69-pa1'
Selected kernel: /boot/vmlinux-2.5.69-pa1 from partition 3
ELF32 executable
Entry 001002a0 first 00100000 n 3
Segment 0 load 00100000 size 1688080 mediaptr 0x1000
Segment 1 load 0029e000 size 307316 mediaptr 0x19e000
Segment 2 load 002ec000 size 438400 mediaptr 0x1ea000
Branching to kernel entry point 0x001002a0.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.5.69-pa1 (bz@apollo) (gcc version 3.3 20030509 (Debian prerelease)) #22 Sat May 17 16:48:19 UTC 2003
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
...
--- /cut ---


-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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From: "Zlatan Jukic" <zlatan.jukic@fh-vorarlberg.ac.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Debian - Linux 3.0 on HP PA-RISC C360
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Sehr geehrte Damen und Herren,

=20

DEUTSCH:

=20

Ich habe neulich Debian Linux 3.0 auf unsere Maschine HP C360 =
installiert.
Ich kann leider X-Windows Desktop nicht starten, weil es von FX-4 Karte
nicht unterst=FCtzt wird.=20

=20

Meine Frage ist: Gibt es =FCberhaupt die M=F6glichkeit mit dieser FX4 =
Karte das
X-Windows System zu starten, oder muss ich eine andere Karte einbauen ( =
und
welche ??), um X-Windows zu starten. Ich habe geh=F6rt dass Visualize =
FX-4
l=E4uft nur unter sog. =84STICON=93, leider Einzelheiten weiss ich auch =
nicht?!,
ich weiss es auch nicht was =84STICON=93 bedeutet, da ich noch =
Anf=E4nger bin.

=20

Wenn X-Windows nicht gestartet werden kann, kann ich mit FX4 irgendeinen
anderen ( z.B. KDE oder GNOME Desktop) starten!

=20

K=F6nnen Sie mir bitte hier helfen?

=20

Herzlichen Dank f=FCr irgendwelche Hilfe!!

=20

Freundlichen Gruss, Zlatan=20

=20

ENGLISH:

=20

I installed recently Debian-Linux 3.0 on our machine HP C360.  I cannot
start unfortunately X-Windows Desktop, because it is not supported by =
FX4
card. =20

My question is:  There is the possibility with these FX4 card the =
X-Windows
system to start, or must I insert another card (and which??) in order to
start

X-Windows=85=20

I heard that Visualize FX4 run only under so-called "STICON",  =
unfortunately
I do not know details also?! =20

=20

I do not know it also which meant under "STICON".  If X-Windows cannot =
be
started, can I start with FX4 any different desktop (e.g. KDE or GNOMES
Desktop)! =20

=20

Can you help me please here!? =20

=20

Thanks for all your assistance!

kind regards, Zlatan

=20

=20

********************************************

Zlatan Jukic,

Fachhochschule Vorarlberg GmbH

Achstrasse 1

A-6850 Dornbirn

URL:    <http://www.fh-vorarlberg.at> http://www.fh-vorarlberg.at

email:  <mailto:zlatan.jukic@fh-vorarlberg.ac.at>
zlatan.jukic@fh-vorarlberg.ac.at

Phone: ++43 (0)5572 20336 167
Fax: ++43 (0)5572 20336 100

********************************************

=20


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<div class=3DSection1>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>Sehr geehrte Damen und =
Herren,</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><b><i><font size=3D2 face=3DArial><span =
lang=3DDE-AT
style=3D'font-size:10.0pt;font-family:Arial;background:yellow;font-weight=
:bold;
font-style:italic'>DEUTSCH:</span></font></i></b></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
lang=3DDE-AT
style=3D'font-size:12.0pt'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>Ich habe neulich Debian Linux 3.0 auf unsere =
Maschine
HP C360 installiert. Ich kann leider X-Windows Desktop nicht starten, =
weil es
von FX-4 Karte nicht unterst=FCtzt wird. </span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>Meine Frage ist: Gibt es =FCberhaupt die =
M=F6glichkeit
mit dieser FX4 Karte das X-Windows System zu starten, oder muss ich eine =
andere
Karte einbauen ( und welche ??), um X-Windows zu starten. Ich habe =
geh=F6rt dass Visualize
FX-4 l=E4uft nur unter sog. &#8222;STICON&#8220;, leider Einzelheiten =
weiss ich
auch nicht?!, ich weiss es auch nicht was &#8222;STICON&#8220; bedeutet, =
da ich
noch Anf=E4nger bin.</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>Wenn X-Windows nicht gestartet werden kann, =
kann ich
mit FX4 irgendeinen anderen ( z.B. KDE oder GNOME Desktop) =
starten!</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>K=F6nnen Sie mir bitte hier =
helfen?</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>Herzlichen Dank f=FCr irgendwelche =
Hilfe!!</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Freundlichen Gruss, Zlatan </span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><b><i><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial;background:yellow;font-weight:bold;font-style:italic'>E=
NGLISH:</span></font></i></b></p>

<p class=3DMsoNormal><b><i><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial;font-weight:bold;font-style:italic'>&nbsp;</span></font=
></i></b></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I installed recently Debian-Linux 3.0 on our machine =
HP
C360.&nbsp; I cannot start unfortunately X-Windows Desktop, because it =
is not
supported by FX4 card.&nbsp; </span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>My question is:&nbsp; There is the possibility with =
these
FX4 card the X-Windows system to start, or must I insert another card =
(and
which??) in order to start</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>X-Windows&#8230; </span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I heard that Visualize FX4 run only under so-called
&quot;STICON&quot;,&nbsp; unfortunately I do not know details =
also?!&nbsp; </span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I do not know it also which meant under
&quot;STICON&quot;.&nbsp; If X-Windows cannot be started, can I start =
with FX4
any different desktop (e.g. KDE or GNOMES Desktop)!&nbsp; =
</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Can you help me please here!?&nbsp; =
</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Thanks for all your assistance!</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>kind regards, Zlatan</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>********************************************</s=
pan></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
lang=3DDE-AT
style=3D'font-size:10.0pt;font-family:AvenirBookFH'>Zlatan =
Jukic,</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
lang=3DDE-AT
style=3D'font-size:10.0pt;font-family:AvenirBookFH'>Fachhochschule =
Vorarlberg
GmbH</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
lang=3DDE-AT
style=3D'font-size:10.0pt;font-family:AvenirBookFH'>Achstrasse =
1</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
style=3D'font-size:10.0pt;
font-family:AvenirBookFH'>A-6850 Dornbirn</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
style=3D'font-size:10.0pt;
font-family:AvenirBookFH'>URL:</span></font><font size=3D2><span
style=3D'font-size:10.0pt'>&nbsp;&nbsp;</span></font><font size=3D2
face=3DAvenirBookFH><span =
style=3D'font-size:10.0pt;font-family:AvenirBookFH'> </span></font><a
href=3D"http://www.fh-vorarlberg.at"><font size=3D2 =
face=3DAvenirBookFH><span
style=3D'font-size:10.0pt;font-family:AvenirBookFH'>http://www.fh-vorarlb=
erg.at</span></font></a></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
style=3D'font-size:10.0pt;
font-family:AvenirBookFH'>email: </span></font><a
href=3D"mailto:zlatan.jukic@fh-vorarlberg.ac.at"><font size=3D2 =
face=3DAvenirBookFH><span
style=3D'font-size:10.0pt;font-family:AvenirBookFH'>zlatan.jukic@fh-vorar=
lberg.ac.at</span></font></a></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
style=3D'font-size:10.0pt;
font-family:AvenirBookFH'>Phone: ++43 (0)5572 20336 167<br>
Fax: ++43 (0)5572 20336 100</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>********************************************</span></f=
ont></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;</span></font></p>

</div>

</body>

</html>

------=_NextPart_000_0037_01C32C38.90555CD0--



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Subject: [parisc-linux] Boot from CD
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I know this must be a regular question... But i just can't find anywhere the 
info I need.


I got a HP 9000 D220, I HAVE NO PARISC experience, and i just can't find a way 
to boot that machine from CD (Debian).

Any help would be great

greets
j0rd1


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Subject: Re: [otro] [parisc-linux] Boot from CD
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I just booted from CD using a Dumb terminal, but now i have the problem that 
my dumb terminal doesnt display anything but weird characters....

greets
j0rd1
On Friday 06 June 2003 10:21, j0rd1 adame wrote:
> I know this must be a regular question... But i just can't find anywhere
> the info I need.
>
>
> I got a HP 9000 D220, I HAVE NO PARISC experience, and i just can't find a
> way to boot that machine from CD (Debian).
>
> Any help would be great
>
> greets
> j0rd1
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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On Fri, Jun 06, 2003 at 02:33:14PM +0200, Zlatan Jukic wrote:
> My question is:  There is the possibility with these FX4 card the X-Windows
> system to start,

no.

> or must I insert another card (and which??) in order to
> start X-Windows? 

Yes. PCI Vis-EG or one of the HP GSC gfx card.

> I heard that Visualize FX4 run only under so-called "STICON",  unfortunately
> I do not know details also?!  

Yes. STICON supports "text" mode only.
Ie no frame buffer and thus no X11 support.

grant


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Hi,

I have only a 715/100, but I think you have to setup the serial 
connection with 9600 baud. If  you try a faster connection you'll 
probably get these weird characters...

Greetings,
    Ruediger

j0rd1 adame schrieb:

>I just booted from CD using a Dumb terminal, but now i have the problem that 
>my dumb terminal doesnt display anything but weird characters....
>
>greets
>j0rd1
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
>  
>




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Rdiger Scholz wrote:

> Hi,
>
> I have only a 715/100, but I think you have to setup the serial 
> connection with 9600 baud. If  you try a faster connection you'll 
> probably get these weird characters...
>
Yes and you also have to change the seting of your terminal to emulate 
vt100 :-)

hth,
    Joel




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M. Grabert wrote:

>On Tue, 3 Jun 2003, Joel Soete wrote:
>
>  
>
>>Hi Max,
>>
>>    
>>
>>>Attachment: config-2.4.20-pa35-gcc-3.3
>>>
>>>      
>>>
>>32-bits first;
>>I test this config with gcc-3.3-2 and binutils 2.13.90.0.18-7 but I encounter
>>following pb:
>>
>>`gcc-3.3 -print-libgcc-file-name` /usr/src/linux-2.4.20-pa35/arch/parisc/lib/lib.a
>>
>>/usr/src/linux-2.4.20-pa35/lib/lib.a  \
>>        --end-group \
>>        -o vmlinux
>>drivers/net/wireless/wireless_net.o(.init.text+0x78): In function `init_orinoco_cs':
>>
>>    
>>
>Yes, I enabled PCMCIA specific bits in arch/parisc/config.in. I wanted
>to get a PCMCIA wireless network card working.
>Currently hppa doesn't give you the option to select PCMCIA, so you have
>to modify the config.in so that you can select it. Just copy the PCMCIA
>bits it from arch/i386/config.in to arch/parisc/config.in.
>
>OR simpler:
>
>Disable wireless network (orinoco, hermes, orinoco_cs etc.).
>  
>

Well finaly I reach to continue only some test.
I so choose this simpler solution to build 32 kernel with gcc-3.0 first 
and it compiles well (it took about 15min excluded modules).
I launch it on my b2k and it seems to works fine (any boot pb); I so use 
it to rebuild te same kernel with gcc-3.3.
It also compiles well (in about 12min).
But I notice something strange: runing a top in another xterm, I notice 
that swap was well on but absolutly not used where usually my kernel 
(near about debian std cfg) used about 20Mb of swap (with 256Mb of ram).
Is it a wanted behaviour? (config option?)

Thanks,
    Joel

PS: I do not yet reboot with this last kernel (on Tuesday :-) )



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From: Thibaut VARENE <varenet@esiee.fr>
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It's been a while we haven't seen that template around, heh?

1) is your friend, fwiw.

-----
This is a template message.

1) Read the PA-RISC/Linux Boot HOWTO
http://pateam.esiee.fr/doc.html

2) Read the FAQ
http://www.fr.parisc-linux.org/faq/

3) Read the parisc-linux mailing-list archive
http://www.fr.parisc-linux.org/mailing-lists/

4) Check the Hardware Database
http://hwdb.parisc-linux.org/

5) Check the supported machines list
http://pateam.esiee.fr/list.html

6) Read the "HOWTO Report a Kernel Bug"
http://www.fr.parisc-linux.org/faq/kernelbug-howto.html

7) Read the "HOWTO Build a PA-RISC/Linux Kernel"
http://www.fr.parisc-linux.org/kernel/

----
That template may grow as some questions will reappear :P



Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


On Fri, 6 Jun 2003 10:21:49 -0500
j0rd1 adame <jordi@jordi.net> wrote:

> I know this must be a regular question... But i just can't find anywhere
> the info I need.
> 
> 
> I got a HP 9000 D220, I HAVE NO PARISC experience, and i just can't find
> a way to boot that machine from CD (Debian).
> 
> Any help would be great
> 
> greets
> j0rd1


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Hi!

I'm currently experiencing the following compile error:

gcc -D__ASSEMBLY__ -traditional -D__KERNEL__ -I/usr/src/packages/full_cvs/l=
inux-build-2.4/include  -c -o hpmc.o hpmc.S
gcc -D__ASSEMBLY__ -traditional -D__KERNEL__ -I/usr/src/packages/full_cvs/l=
inux-build-2.4/include  -c -o real2.o real2.S
real2.S: Assembler messages:
real2.S:126: Error: too many positional arguments
make[1]: *** [real2.o] Error 1
make[1]: Leaving directory `/usr/src/packages/full_cvs/linux-build-2.4/arch=
/parisc/kernel'
make: *** [_dir_arch/parisc/kernel] Error 2

This is with:

jbglaw@b132l-1:/usr/src/packages/full_cvs/linux-build-2.4$ as -v
GNU assembler version 2.14.90.0.4 (hppa-linux) using BFD version 2.14.90.0.=
4 20030523 Debian GNU/Linux

jbglaw@b132l-1:/usr/src/packages/full_cvs/linux-build-2.4$ gcc -v
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3/specs
Configured with: ../src/configure -v --enable-languages=3Dc,c++,f77,pascal,=
objc,ada,treelang --prefix=3D/usr --mandir=3D/usr/share/man --infodir=3D/us=
r/share/info --with-gxx-include-dir=3D/usr/include/c++/3.3 --enable-shared =
--with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_a=
texit --enable-sjlj-exceptions --enable-clocale=3Dgnu --enable-debug --enab=
le-objc-gc hppa-linux
Thread model: posix
gcc version 3.3 (Debian)

MfG, JBG
PS: Up to now, I still can't find CVS repos or checkouts which where
previously available via rsync. cvs.p-l.org only has .tar.gz and some
diffs, and rsync.p-l.org only has some README in place which promises
anything has been moved to cvs.p-l.org - but the checked-out archives
are still missing:(

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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> jbglaw@b132l-1:/usr/src/packages/full_cvs/linux-build-2.4$ as -v
> GNU assembler version 2.14.90.0.4 (hppa-linux) using BFD version 2.14.90.0.=
> 4 20030523 Debian GNU/Linux

Try updating binutils and remove whitespace from the argument of the
PA macro.  The assembler is now much more strict about the presence of
whitespace in the operands field.  There was a recent version that didn't
allow any whitespace.  The current cvs version allows whitespace after
a comma.  These changes were made to improve the detection of labels.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Fri, 6 Jun 2003, Joel Soete wrote:

> I launch it on my b2k and it seems to works fine (any boot pb); I so use
> it to rebuild te same kernel with gcc-3.3.
> It also compiles well (in about 12min).
> But I notice something strange: runing a top in another xterm, I notice
> that swap was well on but absolutly not used where usually my kernel
> (near about debian std cfg) used about 20Mb of swap (with 256Mb of ram).
> Is it a wanted behaviour? (config option?)

I don't think I can help you here, I hardly run out of physical memory
(I've 1GB RAM in my machine), but during my tests I was able to
deliberately force the machine to run out of memory and using swap.
I never see the kernel using swap on my machine at all, unless I really
want it to happen ;)

So swap for me works, but I hardly will ever have to come into a situation
where heavy use of swap space will be required (at least I hope so).

Max



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M. Grabert wrote:

>On Fri, 6 Jun 2003, Joel Soete wrote:
>
>  
>
>>I launch it on my b2k and it seems to works fine (any boot pb); I so use
>>it to rebuild te same kernel with gcc-3.3.
>>It also compiles well (in about 12min).
>>But I notice something strange: runing a top in another xterm, I notice
>>that swap was well on but absolutly not used where usually my kernel
>>(near about debian std cfg) used about 20Mb of swap (with 256Mb of ram).
>>Is it a wanted behaviour? (config option?)
>>    
>>
>
>I don't think I can help you here, I hardly run out of physical memory
>(I've 1GB RAM in my machine), but during my tests I was able to
>deliberately force the machine to run out of memory and using swap.
>I never see the kernel using swap on my machine at all, unless I really
>want it to happen ;)
>
>So swap for me works, but I hardly will ever have to come into a situation
>where heavy use of swap space will be required (at least I hope so).
>
>Max
>
>
>  
>
Max,

I will so have a more detail look in your config.

(the other server I can use is a N model with 2Mb wich I do not see used 
more than 1.7 Mb and so not need to swap :-) ; OTC my 256Mb (or less) 
boxes usualy need swap. Let see)

Thanks for info,
    Joel

PS: Do you still encounter starvation pb?



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On Sat, 7 Jun 2003, Joel Soete wrote:

> Max,
>
> I will so have a more detail look in your config.
>
> (the other server I can use is a N model with 2Mb wich I do not see used
> more than 1.7 Mb and so not need to swap :-) ; OTC my 256Mb (or less)
> boxes usualy need swap. Let see)

I think you are talking about GB here, not MB ;)

> PS: Do you still encounter starvation pb?

I'm not sure, I've to check the /var/log/messages* files more closely.
When I was browsing through them last time (when I sent the dmesg to the
list) it didn't seem so (the 'beast' is now up almost 2 weeks).
So if there are 'target is suffering tag starvation' messages at all,
there are at least so few you can hardly spot them ;)

Max



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From: Jean-marc Harang <jean-marc.harang@laposte.net>
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Subject: [parisc-linux] Reference, service or even user's Manuals for 705 and 750
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Hello,

I just bought two PA-RISC Hardawre :	

1) One HP9000/705, very interesting because of low noise ;)
2) One HP9000/750 (Cobra), with 128 Mo and 2*1.5 Go hd. Beautiful !

I've looking after documentation (HP, OpenPa Project, PARISC, etc..)
and I don't find any documentation for theses workstations, except
"lpv38008.pdf", User's manual for 750. 

Where can I find these documents ? Could somebody help me to get them ?
  
Specially, I have great difficulties with the 750 and the hardware selftest.
I notice an LED error code I don't understand. 

I get that (reading up to down) :

 Green led Power : on
 amber 1 : on
 amber 2 : off
 amber 3 : on
 amber 4 : off
 amber 5 : on
 amber 6 : on
 amber 7 : on
 amber 8 : off
 Service led : off

Any idea ?

Bests regards,

Jean-Marc

PS : Sorry for my poor english :( !


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Hi Bjoern,

Anoyed to change my fstab because I add or remove a disk to/from the external
scsi controler of my b2k (boot disk sda became sdb, sdc, or what else),
I decide so to test devfs kernel. It seems to works (excepted that I could
not specify root=/dev/scsi/host1/bus0/target5/lun0/part5)

Coming back to the actual pb with new palo:
the original ipl prompt is:
PALO(F0) partition contains:
    0/vmlinux32 3826722 bytes @ 0x44000

Information: No console specified on kernel command line. 
his is normal.
PALO will choose the console currently used by firmware (serial).Current
command line:
3/vmlinux-2.4.19-pre10-pa39-tsi root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
 0: 3/vmlinux-2.4.19-pre10-pa39-tsi
 1: root=/dev/sda5
 2: HOME=/

 3: console=ttyS0
 4: TERM=vt102

which I would like to change in:
Current command line:
3/vmlinux-2.4.21-rc8-pa35-devfs root=/dev/scsi/host1/bus0/target5/lun0/part5
HOME=/ console=ttyS0 TERM=vt102
 0: 3/vmlinux-2.4.21-rc8-pa35-devfs
 1: root=/dev/scsi/host1/bus0/target5/lun0/part5
 2: HOME=/
 3: console=ttyS0
 4: TERM=vt102

Edit which field?
(or 'b' to boot with this command line)? b

Command line for kernel: 'root=/dev/scsi/host1/bus0/target5/lun0/part5 HOME=/
console=ttyS0 TERM=
t102 palo_kernel=3/vmlinux-2.4.21-rc8-pa35-devfs'
Selected kernel: /vmlinux-2.4.21-rc8-pa35-devfs from partition 3

the system hang here (just read on LCD "init c7ff")

(btw, there is no pb if I don't change root path and the final lenght of
cmd line is of 121 characters < 256 of buffer ??)

I so come back to palo-1.2 where the pb don't occure:
Command line for kernel: 'root=/dev/scsi/host1/bus0/target5/lun0/part5 HOME=/
console=ttyS0 TERM=vt102 palo_kernel=3/vmlinux-2.4.21-rc8-pa35-devfs'

Selected kernel: /vmlinux-2.4.21-rc8-pa35-devfs from partition 3
ELF32 executable
Entry 00100210 first 00100000 n 6
Segment 0 load 00100000 size 2101928 mediaptr 0x1000
[...]

Even thought later:
[...]
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "scsi/host1/bus0/target5/lun0/part5" or 02:00
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on 02:00

Never the less, in the cmdln the root device seems to be well /dev/scsi/...
and here is just mentionned scsi/... (may be normal, don't know)?

Any idea (how to debug)?

Thanks in advance,
    Joel





---------------------------------
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On Wed, Jun 11, 2003 at 07:46:54PM +0200, Joel Soete wrote:
> Anoyed to change my fstab because I add or remove a disk to/from the external
> scsi controler of my b2k (boot disk sda became sdb, sdc, or what else),
> I decide so to test devfs kernel. It seems to works (excepted that I could
> not specify root=/dev/scsi/host1/bus0/target5/lun0/part5)

(a) devfs is shit.  do not use it.
(b) even if it's compiled in, the kernel still matches `root=' against a
built-in table that has nothing to do with devfs.
(c) devfs is shit.  do not use it.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Wed, 11 Jun 2003, Joel Soete wrote:

Hi,

...
> the system hang here (just read on LCD "init c7ff")
....

> I so come back to palo-1.2 where the pb don't occure:
> Command line for kernel: 'root=/dev/scsi/host1/bus0/target5/lun0/part5 HOME=/
> console=ttyS0 TERM=vt102 palo_kernel=3/vmlinux-2.4.21-rc8-pa35-devfs'
>
> Selected kernel: /vmlinux-2.4.21-rc8-pa35-devfs from partition 3
> ELF32 executable
> Entry 00100210 first 00100000 n 6
> Segment 0 load 00100000 size 2101928 mediaptr 0x1000
> [...]

well if I got it right you changed disks ? And after re-running palo 1.2
from command line everything workd fine ? I don't know these internals
of palo - where it get's the kernel etc. from but it might be a problem
if boot disc completely changes ... you might simply try re-running
pal0-1.2patched from command line again and see what happens ?

And yes Matthew is 101% right that devfs at least on linux is a big
mess. It took me almost a week to fix some 2.5.xx and get it boot from
grub on an intel somewhen end of last year. Some weeks later I
installed FreeBSD 5.0R on that machine and I am happy with it ;-) so I
do no longer have the notes a hand (apart from backups) I took those
days about devfs.

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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On 2003-06-11 19:51:10, Matthew Wilcox wrote:

> On Wed, Jun 11, 2003 at 07:46:54PM +0200, Joel Soete wrote:
> > Anoyed to change my fstab because I add or remove a disk to/from the ex=
ternal
> > scsi controler of my b2k (boot disk sda became sdb, sdc, or what else),
> > I decide so to test devfs kernel. It seems to works (excepted that I co=
uld
> > not specify root=3D/dev/scsi/host1/bus0/target5/lun0/part5)
> (a) devfs is shit.  do not use it.
> (b) even if it's compiled in, the kernel still matches `root=3D' against a
> built-in table that has nothing to do with devfs.
> (c) devfs is shit.  do not use it.

This thread is going way off-topic for the parisc-list.. but.. I feel
the need to disagree anyway! =3D)

Your argumentation is flawed.

Joel gave a perfect example of when devfs would come of perfect use,
variation of scsi devices fucks up "sdb", "sdc" and so on.=20

I earlier mentioned another fine use of devfs, to avoid the trouble of
constantly changing major number for /dev/ttB0 =3D)

Matthew, I wonder if it would not be possible to have a ext3-label
'root' on the partition and say root=3DLABEL=3Droot (even though that would
look rather weird =3D) )

    tune2fs -L root /dev/bla/blah

LABEL=3Dblapp can be used in fstab aswell.

Sad things I've discovered:

  * reiserfs does not support those labels
 =20
  * you cannot have two devices with the same labels
    (I tried to have multiple BOOT-partitions, with hopes that
    witchever was available could be used, however, that won't
    work when both devices are present, of course =3D) )
 =20
  * Labels DON'T work with software raid, because the kernel will
    recognize the labels even on the seperate units of the raid,=20
    and start complaining about multible labels.
 =20
    However, you might specify raids using their UUIDs in=20
    /etc/mdadm/mdadm.conf:
 =20
    # root
    ARRAY /dev/md/0 UUID=3D9ec52c6f:af4958dd:4c8ff16e:95abab7c spare-group=
=3Dekstra
    # usr
    ARRAY /dev/md/1 UUID=3Dbd627bf7:8fcae3d0:4f3f4fe7:7b3786df spare-group=
=3Dekstra
    # home
    ARRAY /dev/md/2 UUID=3D47e9c924:5bbda641:b506006e:599c80e5 spare-group=
=3Dekstra
 =20
    ... but.. I've had trouble with usr and home switching place (md1 and
    md2) from now and then anyway, so maybe this is just a teoretical
    feature =3D)
 =20
    Obligatory quote from bash.org:

      #85899 +(53)- [X]
      * unchellmatt does the RAID lovers cheer... "ARRAY! ARRAY!"

I don't think you will be able to use devfs in root=3D as /dev can't be
mounted before / (unless you use initrd, that is, but I haven't figured
out how to do that with palo)

--=20
Stian S=F8iland               Work toward win-win situation. Win-lose
Trondheim, Norway           is where you win and the other lose.
http://www.soiland.no/      Lose-lose and lose-win are left as an
                            exercise to the reader.  [Limoncelli/Hogan]


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> Joel gave a perfect example of when devfs would come of perfect use,
> variation of scsi devices fucks up "sdb", "sdc" and so on. 

Seperate the theory from the implementation. The implementation has real
problems. The theory has permission management problems

Dell have a nice little app that generates the right symlinks by device
all in user space



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From: "Hattie Yuan" <frankhe1978@sina.com>
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Subject: [parisc-linux] professional manufacturer specializing in mobile phone accessories
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   Dear Sir or Madam,
  
   Good day!
  
   HY Technology Company Limited,  registered in Hongkong and located in Shenzhen, is a   
professional manufacturer specializing in mobile phone accessories, mainly including Portable   hands 
free, Battery, chargers, case and data cable. 
  
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   Any question, please contact me at any time.
  
   Sincerely hope to establish a long-term business relationship with you soon.
  
   Best regards,
  
   Maggie
   HY Technology Company Limted


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On Wed, Jun 11, 2003 at 09:32:32PM +0100, Alan Cox wrote:
> Dell have a nice little app that generates the right symlinks by device
> all in user space

Happen to know the name of the app?
Does it handle adding/removing HBAs gracefully?

thanks,
grant


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: Re: [parisc-linux] palo II (scsi disk path name)
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>
>On Wed, Jun 11, 2003 at 07:46:54PM +0200, Joel Soete wrote:
> Anoyed to change my fstab because I add or remove a disk to/from the external
> scsi controler of my b2k (boot disk sda became sdb, sdc, or what else),
> I decide so to test devfs ker
el.
>It seems to works (excepted that I could
> not specify root=/dev/scsi/host1/bus0/target5/lun0/part5)

> (a) devfs is shit.  do not use it.

Ok but is there some other alternative to fix this pb?

I spook with "Kurt Garloff <garloff@suse.de
" about its patch "root=/dev/scsi/sdcXbXtXuXpX
support" into 2.4.20 but advise me better devfs?

An lvm ramdisk to rebuild for each new kernel test?

> (b) even if it's compiled in, the kernel still matches `root=' against
a
> built-in table tha
 has nothing to do with devfs.

Clear arg

> (c) devfs is shit.  do not use it.
Ok but is there some other alternative to fix this pb? ;-)

the early lvm discover of evms was removed in last release :(

Thanks for info and advise,
    Joel

PS:
Please accepte my apologies but it seems that my ISP changes a bit its
webmail tools and seems bugy for reply with copy of original text (break
thread, and mainly removed characters?)



---------------------------------
Dcouvrez les 6 cls et gagnez le Club Med  Vie avec Tiscali
http://www.tiscali.be/nl/subs/tiscali4life/default.asp?lang=fr




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>
>> Joel gave a perfect example of when devfs would come of perfect use,
> variation of scsi devices fucks up "sdb", "sdc" and so on. 

>Seperate the theory from the implementation. The implementation has real
>problems. The theory has permission management problems

I was just looking for a sol to this anoying scsi disk named to refer to
(a la /dev/[r]dsk/cXtXdX on hpux or /dev/dsk/cXtXdXsX on solaris; ie a name
independent of the scan order of [scsi] interfaces)

>Dell have a nice little app that generates the right symlinks by device
>all in user space

I will try to find it and test

Thanks,
    Joel

ps: btw merge 2.4.21 any news? now for > 2.4.22 (for my part no info from
Marcelo neither 'no' nor 'yes'; is there some specific ml archive to read)

---------------------------------
Dcouvrez les 6 cls et gagnez le Club Med  Vie avec Tiscali
http://www.tiscali.be/nl/subs/tiscali4life/default.asp?lang=fr




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--#RXRUE28604#--


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...
> the system hang here (just read on LCD "init c7ff")
....

> I so come back to palo-1.2 where the pb don't occure:
> Command line for kernel: 'root=/dev/scsi/host1/bus0/target5/lun0/part5
HOME=
>
> console=ttyS0 TERM=vt102 palo_kernel=3/vmlinux-2.4.21-rc8-pa35-devfs'
>
> Selected kernel: /vmlinux-2.4.21-rc8-pa35-devfs from partition 3
> ELF32 executable
> Entry 00100210 first 00100000 n 6
> Segment 0 load 00100000 size 2101928 mediaptr 0
>1000
> [...]

> well if I got it right you changed disks ?
No I just add a disk on to an additional scsi ctrlr plug into my hp box

[...]
> ... you might simply try re-running
> pal0-1.2patched from command line again and see what happens ?

I could so try also (even if the boot disk do not actually changed)

> And yes Matthew is 101% right that devfs at least on linux is a big
> mess. It took me almost a week to fix some 2.5.xx and get it boot
> from grub on an intel somewhen end of last year. Some weeks later I
> installed FreeBSD 5.0R on that machine and I am happy with it ;-) so I
> do no longer have the notes a hand (apart from backups) I took those
> days about devfs.
Doesn't matter, considering all advises, I will abandon this idea and try
to find another one. Never the less, the problem I encounter stand in ipl
(at this boot stage)
btw, is your pb is solved? eg is this patch could be comit?

Thanks,
    Joel

[btw: is your FreeBsd stand alone on its own disk or beside linux partition?]

---------------------------------
Dcouvrez les 6 cls et gagnez le Club Med  Vie avec Tiscali
http://www.tiscali.be/nl/subs/tiscali4life/default.asp?lang=fr




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Hi all,

Sorry to answer to myself but I do some more test:
(please forget that is devfs test, I trust that at this boot stage any text
would have the same effect)

> I so come back to palo-1.2 where the pb don't occure:
> Command line for kernel: 'root=/dev/scsi/host1/bus0/target5/lun0/part5
> HOME=/ console=ttyS0 TERM=vt102 palo_kernel=3/vmlinux-2.4.21-rc8-pa35-devfs'
>

I do first replace the kernel name in my palo.conf to vmlinux-2.4.21-rc8-pa35-devfs
and let root=/dev/sda5

so that at reboot I just have to change root=...

then I reduce root=.. since  root=/dev/scsi/host1/bu when it works again

Finaly I chg palo.conf with full root=/dev/scsi/host1/bus0/target5/lun0/part5
run palo and reboot. iplboot also failed at the same place


Now reinstall palo-1.2 and no pb with this last palo.conf

hmm the palo-1.2 is the official debian pkg (size 30728)
the palo-patched is of my own build with gcc-3.3 (size 34816)

Now rebuild palo-patched with gcc-3.0 (size 30720) and it works :-(

What can I do more to help to fix this gcc pb?

Joel

PS: in the mean time I trust (iin accordance with Bjoern) that this patch
can be comited, what do you think?





---------------------------------
Dcouvrez les 6 cls et gagnez le Club Med  Vie avec Tiscali
http://www.tiscali.be/nl/subs/tiscali4life/default.asp?lang=fr




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This is a multi-part message in MIME format
--a8d107c6-e8ee-4020-9b7c-e2b53016f711
Content-Type: text/plain; charset=gb2312
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From - Thu Nov 08 21:28:03 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] 2.4.21
Date: Fri, 13 Jun 2003 16:49:51 +0100
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As some of you already know, 2.4.21 is out.  I'd've imported it myself
by now, but the 2.4 linux repo is using an _old_ scheme for managing
vendor branches.  Paul, would you be so kind as to do the honours?
I don't see any reason to hold off on merging 2.4.21 into our tree;
we can deal with any brokenness in the 2.4 tree later.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: bame@riverrock.org (Paul Bame)
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Subject: [parisc-linux] Re: 2.4.21
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On Fri, Jun 13, 2003 at 04:49:51PM +0100, Matthew Wilcox wrote:
> 
> As some of you already know, 2.4.21 is out.  I'd've imported it myself
> by now, but the 2.4 linux repo is using an _old_ scheme for managing
> vendor branches.  Paul, would you be so kind as to do the honours?
> I don't see any reason to hold off on merging 2.4.21 into our tree;
> we can deal with any brokenness in the 2.4 tree later.

Hmm, bad timing, maybe Tuesday.  That ok?

	-P (currently in Moab.ut.us)


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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.5 willy
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On Sat, 14 Jun 2003, Matthew Wilcox wrote:

Hi,

> CVSROOT:	/var/cvs
> Module name:	linux-2.5
> Changes by:	willy	03/06/14 16:16:33
>
> Modified files:
....
> Log message:
> merged 2.5.71

cvsupped ... and rechecked this moment w/o new updates.

bz@apollo:/u1/src/linux> make oldconfig
  HOSTCC  scripts/fixdep
  ...
  HOSTCC  -fPIC scripts/kconfig/zconf.tab.o
  HOSTLLD -shared scripts/kconfig/libkconfig.so
  HOSTLD  scripts/kconfig/conf
./scripts/kconfig/conf -o arch/parisc/Kconfig
drivers/parisc/Kconfig:148: can't open file "drivers/hotplug/Kconfig"
make: *** [oldconfig] Error 1
bz@apollo:/u1/src/linux>

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux-2.5 willy
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On Sat, Jun 14, 2003 at 11:57:52PM +0000, Bjoern A. Zeeb wrote:
>   HOSTLD  scripts/kconfig/conf
> ./scripts/kconfig/conf -o arch/parisc/Kconfig
> drivers/parisc/Kconfig:148: can't open file "drivers/hotplug/Kconfig"
> make: *** [oldconfig] Error 1

Fixed, thanks.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sat, Jun 14, 2003 at 05:40:39PM -0600, Paul Bame wrote:
> On Fri, Jun 13, 2003 at 04:49:51PM +0100, Matthew Wilcox wrote:
> > Paul, would you be so kind as to do the honours?
> > I don't see any reason to hold off on merging 2.4.21 into our tree;
> > we can deal with any brokenness in the 2.4 tree later.
> 
> Hmm, bad timing, maybe Tuesday.  That ok?

We've waited 9 months for 2.4.21, I guess we can wait another 4 days ;-)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi,

already had this problem with 2.5.70.
This is a monolithic kernel, modules=no on 715/100.

gcc is		gcc version 3.3 (Debian) [3.3-3]
binutils 	2.14.90.0.4-0

anyhing I can do best to trace this ?

--- cut ---
......
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 432k freed

Stack Dump:
 10030200:  0006ff0e 102bd000 100376c0 00000000
 100301f0:  00027670 00026e70 102bd000 00027670
 100301e0:  102a8010 15fb8ca4 00000003 ffffffe0
 100301d0:  100376c0 0000003f 00000040 15fb8d48
 100301c0:  00000000 102bd000 102a8010 102a8010
 100301b0:  0900deee 1012ffac 00020002 15ff1000
 100301a0:  00020002 faf00078 00000001 00000003
 10030190:  00020002 15ff1000 00020002 00000000
 10030180:  15ffe820 40180000 40026fb4 4017fcc8
 10030170:  40181cf8 1010642c 102b9020 faf010a8
 10030160:  15efa6d4 10349960 15ff726c ffffffea
 10030150:  100300d8 00000000 0000000e faf00078
 10030140:  00000001 40001f5f faf00140 1030d810
 10030130:  1036b920 101304b4 00000000 00000001
 10030120:  00000003 15efa6d4 15ff1000 faf00348
 10030110:  4017e33c 00000000 00000001 00000000
 10030100:  000272ae 00000001 100376c0 102bd000
 100300f0:  faf00348 4017e33c 00000000 faf00fc0
 100300e0:  faf00000 00000001 faf00348 00000000
 100300d0:  00000000 00000000 00027456 00000001
 100300c0:  faf005c0 00000000 00000000 00000000
 100300b0:  00000000 1010afe8 00000000 00000000
 100300a0:  00000000 10290140 000002eb 4002f014
 10030090:  40028850 00000000 00000000 40015340
 10030080:  00000001 00000000 00000000 00000000
 10030070:  00000000 1010a088 00000000 00000000
 10030060:  00000000 00000000 00000000 00000000
 10030050:  00000000 00000000 00000000 00000000
 10030040:  00000000 00000000 00000000 00000000
 10030030:  00000000 00000000 00000000 00000000
 10030020:  00000000 00000000 00000000 00000000
 10030010:  00000001 00000000 00000000 102be8e4

Kernel addresses on the stack:
 [<1012ffac>] do_sigaction+0xe0/0x290
 [<1010642c>] handle_interruption+0x274/0x5b4
 [<101304b4>] sys_rt_sigaction+0x7c/0xc4
 [<1010afe8>] syscall_exit+0x0/0x28
 [<1010a088>] intr_check_sig+0x0/0xc


Kernel Fault: Code=15 regs=10030200 (Addr=00027454)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001110 Not tainted
r00-03  00000000 102e97c0 1012ffac 00027454
r04-07  00000000 0000000d 0000000e 15fb8d54
r08-11  100300c8 00027670 102bd000 00026e70
r12-15  00027670 00000000 100376c0 102bd000
r16-19  102a8010 102a8010 0900deee 102a8010
r20-23  00001000 00027457 000000e0 0000000c
r24-27  00000000 00000000 00027456 102a8010
r28-31  00027456 00000400 10030200 40061097
sr0-3   00000001 00000001 00000000 00000001
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101a0ce4 101a0ce8
 IIR: 0c601094    ISR: 00000000  IOR: 00027454
 CPU:        0   CR30: 10030000 CR31: 102ec000
 ORIG_R28: 000014f4
 IAOQ[0]: __canonicalize_funcptr_for_compare+0x38/0x134
 IAOQ[1]: __canonicalize_funcptr_for_compare+0x3c/0x134
 RP(r2): do_sigaction+0xe0/0x290

--- cut ---

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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From: Eric Huiban <grompf@grompf.net>
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Hi all,

I just need to install an 'old' modem (USR Sportster V34) on a freshly 
installed HP 9000/730. Using minicom i only managed to communicate
with the modem up to 19200bps. I'm using ttyS0 as backup console port and 
ttyS1 as modem port.

here is the content of my serial.conf generated during the debian 
installation :

###PORT STATE GENERATED USING AUTOSAVE-ONCE###
###AUTOSAVE-ONCE###
###AUTOSAVE###
#
[snip : comments]
/dev/ttyS0 uart 16550A port 0x0000 irq 90 baud_base 454545 spd_vhi
/dev/ttyS1 uart 16550A port 0x0000 irq 89 baud_base 454545 spd_vhi

Is there something specific to the HP 9000 computers , or just a little 
something i missed somewhere ?

Thant you all !

Eric Huiban, aka Grompf.


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Subject: Re: [parisc-linux] Re: 2.4.21
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Matthew Wilcox wrote:

>On Sat, Jun 14, 2003 at 05:40:39PM -0600, Paul Bame wrote:
>  
>
>>On Fri, Jun 13, 2003 at 04:49:51PM +0100, Matthew Wilcox wrote:
>>    
>>
>>>Paul, would you be so kind as to do the honours?
>>>I don't see any reason to hold off on merging 2.4.21 into our tree;
>>>we can deal with any brokenness in the 2.4 tree later.
>>>      
>>>
>>Hmm, bad timing, maybe Tuesday.  That ok?
>>    
>>
>
>We've waited 9 months for 2.4.21, I guess we can wait another 4 days ;-)
>
>  
>
Even though merge seems to me easy, if my merge patch (a diff between 
2.4.21 vanilla and my stuff) would help you, let me know. I will so try 
to prepare it on monday.

Joel




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On Sun, Jun 15, 2003 at 03:55:47PM +0000, Joel Soete wrote:
> Even though merge seems to me easy, if my merge patch (a diff between 
> 2.4.21 vanilla and my stuff) would help you, let me know. I will so try 
> to prepare it on monday.

The merge is not the problem; importing the new upstream version into
our CVS is the problem.

Having said that, when we're done, if you want to compare with your tree,
that would be useful.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Matthew Wilcox wrote:

>On Sun, Jun 15, 2003 at 03:55:47PM +0000, Joel Soete wrote:
>  
>
>>Even though merge seems to me easy, if my merge patch (a diff between 
>>2.4.21 vanilla and my stuff) would help you, let me know. I will so try 
>>to prepare it on monday.
>>    
>>
>
>The merge is not the problem; importing the new upstream version into
>our CVS is the problem.
>
I well understand this pb ;-)
may be opportunity to test svn?

>
>Having said that, when we're done, if you want to compare with your tree,
>that would be useful.
>
>  
>
Ok I will

Joel



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On Sun, Jun 15, 2003 at 04:11:46PM +0000, Joel Soete wrote:
> I tried to use a "PGX64 alias Rage xl " pluged in the first slot of my 
> b180L. It seems to be well supported by kernel 2.4.21 (modeprobe 
> ati128fb; # modules were well loaded).

cool - that's a good first step. I don't know where to go from there.

> But no success to make XFree86 
> works (fbset /dev/fb0 not found)

Maybe it's as simple as "mknod /dev/fb0 ..." ?
if the driver loads without complaining, I'd expect fbset command
to work too.

> and even when I change console path to 
> graphics(1[a]) I never reach to obtain boot prompt on the screen (which 
> never seems to recieve init signal?).

PDC/IODC/STI won't know anything about the Rage XL card.
There's no way you can use that as a console.

> I do not understand, it seems to be a common pci gfx card? any idea?

I don't either really. Just guessing.

grant


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Hi,

I'm trying to build a 64bit gcc but the configuration script fail.

./configure --host=hppa2.0-unknown-linux-gnu --prefix=/usr 
--target=hppa64-linux --disable-shared --disable-nls --enable-64-bit-bfd  
--enable-languages=c
[snip]
checking for CHAR_BIT... yes
checking byte ordering... od: od.c:1324: read_block: Assertion `0 < n && n <= 
bytes_per_block' failed.
unknown
configure: error: *** unable to determine endianness
Configure in /var/tmp/portage/gcc-3.2.2/work/gcc-3.2.2/gcc failed, exiting.

What's wrong ?

Regards

-- 
Guy Martin
Gentoo - HPPA port Lead / IPv6 team
Lug Charleroi (Belgium)



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Subject: Re: [parisc-linux] Can't configure gcc with --target=hppa64-linux
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Ok, in fact it's od which have a little problem.

Thanks tausq for his help and sorry for this post :)

On Sunday 15 June 2003 20:57, Guy Martin wrote:
> Hi,
>
> I'm trying to build a 64bit gcc but the configuration script fail.
>
> ./configure --host=hppa2.0-unknown-linux-gnu --prefix=/usr
> --target=hppa64-linux --disable-shared --disable-nls --enable-64-bit-bfd
> --enable-languages=c
> [snip]
> checking for CHAR_BIT... yes
> checking byte ordering... od: od.c:1324: read_block: Assertion `0 < n && n
> <= bytes_per_block' failed.
> unknown
> configure: error: *** unable to determine endianness
> Configure in /var/tmp/portage/gcc-3.2.2/work/gcc-3.2.2/gcc failed, exiting.
>
> What's wrong ?
>
> Regards

-- 
Guy Martin
Gentoo - HPPA port Lead / IPv6 team
Lug Charleroi (Belgium)



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>  IAOQ[0]: __canonicalize_funcptr_for_compare+0x38/0x134
>  IAOQ[1]: __canonicalize_funcptr_for_compare+0x3c/0x134
>  RP(r2): do_sigaction+0xe0/0x290

Fixes for this have been discussed on the list several times before.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From - Thu Nov 08 21:28:05 2018
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X-Mozilla-Keys:                                                                                 
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From: Nomadic Screensavers <free@xxxscreensavers.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Free Screensavers 4 U
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Hello,<BR>The attached product is send as a part of our official campaign<BR>for the popularity of our product.<BR>You have been chosen to try a free fully functional sample of our<BR>product.If you are satified then you can send it to your friends.<BR>All you have to do is to install the software and register an account<BR>with us using the links provided in the software. Then send this software<BR>to your friends using your account ID and for each person who registers<BR>with us through your account, we will pay you $1.5.Once your account reaches<BR>the limit of $50, your payment will be send to your registration address by<BR>check or draft.<BR><BR>Please note that the registration process is completely free which means<BR>by participating in this program you will only gain without loos
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From: "Joel Soete" <jsoe0708@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Re: HP C180 video card
Date: Mon, 16 Jun 2003 12:07:02 +0200
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>>
>>On Sun, Jun 15, 2003 at 04:11:46PM +0000, Joel Soete wrote:
>> I tried to use a "PGX64 alias Rage xl " pluged in the first slot of my

>> b180L. It seems to be well supported by kernel 2.4.21 (modeprobe 
>> ati128fb; # modules were well loaded).

# lsmod
Module                  Size  Used by    Not tainted
aty128fb               20244   0  (unused)
fbcon-cfb32             5956   0  [aty128fb]
fbcon-cfb8              5244   0  [aty128fb]
fbcon-cfb24             5876   0  [aty128fb]
fbcon-cfb16             5828   0  [aty128fb]

>cool - that's a good first step. I don't know where to go from there.
>
>> But no success to make XFree86 
>> works (fbset /dev/fb0 not found)

>Maybe it's as simple as "mknod /dev/fb0 ..." ?

I do it (rm /dev/fb*; cd /dev ; MAKEDEV fb; fb* were well rebuild) but no
more success?

>> if the driver loads without complaining, I'd expect fbset command
>> to work too.

Hope so too.

Even "cat /proc/fb" don't show me anything?

>> and even when I change console path to 
>> graphics(1[a]) I never reach to obtain boot prompt on the screen (which

>> never seems to recieve init signal?).
>
>PDC/IODC/STI won't know anything about the Rage XL card.
>There's no way you can use that as a console.

Ok so I swicth to "path con serial_1"

>> I do not understand, it seems to be a common pci gfx card? any idea?

>I don't either really. Just guessing.

Just in case some more X(pert) read this mail, here is some more info:

root@fw02:/CVS/SRC.TMP# lspci
00:01.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27)
00:02.0 Serial controller: Equinox Systems, Inc.: Unknown device 90f0 (rev
04)
...

/var/log/XFree86.0.log:
[...]
(WW) Open APM failed (/dev/apm_bios) (No such file or directory)
(II) PCI: PCI scan (all values are in hex)
(II) PCI: 00:01:0: chip 1002,4752 card 0000,0000 rev 27 class 03,00,00 hdr
00
(II) PCI: 00:02:0: chip 113f,90f0 card 0000,0000 rev 04 class 07,00,80 hdr
00
(II) PCI: 00:13:0: chip 1000,000f card 0000,0000 rev 04 class 01,00,00 hdr
00
(II) PCI: 00:14:0: chip 1011,0019 card 103c,104f rev 41 class 02,00,00 hdr
00
(II) PCI: End of PCI scan
(II) Host-to-PCI bridge:
(II) Bus 0: bridge is at (0:0:0), (-1,0,0), BCTRL: 0x00 (VGA_EN is cleared)
(II) Bus 0 I/O range:
        [0] -1 0        0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 0 non-prefetchable memory range:
        [0] -1 0        0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 0 prefetchable memory range:
        [0] -1 0        0x00000000 - 0xffffffff (0x0) MX[B]
(--) PCI:*(0:1:0) ATI Mach64 GR rev 39, Mem @ 0xf1000000/24, 0xf0fec000/12,
I/O @ 0xfd00/8, BIOS @ 0xf0f80000/17
(II) Addressable bus resource ranges are
        [0] -1 0        0x00000000 - 0xffffffff (0x0) MX[B]
        [1] -1 0        0x00000000 - 0x0000ffff (0x10000) IX[B]
[...]
(II) FBDEV: driver for framebuffer: fbdev
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) v4l driver for Video4Linux
(II) Primary Device is: PCI 00:01:0
(EE) open /dev/fb0: No such device
(EE) No devices detected.

Fatal server error:
no screens found


Thanks for your attention,
    Joel


---------------------------------
Dcouvrez les 6 cls et gagnez le Club Med  Vie avec Tiscali
http://www.tiscali.be/nl/subs/tiscali4life/default.asp?lang=fr




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On Sunday 15 June 2003 08:43 am, Eric Huiban wrote:
> Hi all,
>
> I just need to install an 'old' modem (USR Sportster V34) on a freshly
> installed HP 9000/730. Using minicom i only managed to communicate
> with the modem up to 19200bps. I'm using ttyS0 as backup console port and
> ttyS1 as modem port.
>
> here is the content of my serial.conf generated during the debian
> installation :
>
> ###PORT STATE GENERATED USING AUTOSAVE-ONCE###
> ###AUTOSAVE-ONCE###
> ###AUTOSAVE###
> #
> [snip : comments]
> /dev/ttyS0 uart 16550A port 0x0000 irq 90 baud_base 454545 spd_vhi
> /dev/ttyS1 uart 16550A port 0x0000 irq 89 baud_base 454545 spd_vhi
>
> Is there something specific to the HP 9000 computers , or just a little
> something i missed somewhere ?
>
Such as a UART speed limit?
Depends on the model, but on some older machines, 19200 is all you get.
Subject has come up on the mailing list before; info should be in the
ML archives.

Mike
>
> Thant you all !
>
> Eric Huiban, aka Grompf.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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On Sun, 15 Jun 2003, John David Anglin wrote:

Hi,

> >  IAOQ[0]: __canonicalize_funcptr_for_compare+0x38/0x134
> >  IAOQ[1]: __canonicalize_funcptr_for_compare+0x3c/0x134
> >  RP(r2): do_sigaction+0xe0/0x290
>
> Fixes for this have been discussed on the list several times before.

thanks. I was right saying I had this before. fixed my .69 with one of
the suggestions from may I guess and forgot to add the patch to my
patchlist.

Anyway there is still no solution to this from what I can see. People
always compile kernels and bump -paX but from what I can see the
kernel won't boot up. So how can they test it ? How do they get a
bootable kernel ?

If I remember on solution was adding (void *) casts to all those
function pointer compares but that was not take a solution as Linus
wouldn't accept s.th. like this.
Then there was the solution with the EXPORT_SYMBOL (I think that one
worked for me).

Are you all patching your kernels ? Why not commit one of the fixes
- at least temporary - to p-l.o cvs ?

What didn't I get now ?

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
56 69 73 69 74				http://www.zabbadoz.net/


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On Mon, Jun 16, 2003 at 06:09:57PM +0000, Bjoern A. Zeeb wrote:
> Anyway there is still no solution to this from what I can see. People
> always compile kernels and bump -paX but from what I can see the
> kernel won't boot up. So how can they test it ? How do they get a
> bootable kernel ?

two things ... i think one is that most people aren't testing 2.5 yet.
another is that most people are still on gcc-3.0.  indeed, gcc-3.2 and
later are not suitable for generating a kernel since it does not respect
the __aligned__ attribute on stack allocations.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> another is that most people are still on gcc-3.0.  indeed, gcc-3.2 and
> later are not suitable for generating a kernel since it does not respect
> the __aligned__ attribute on stack allocations.

Actually, I don't believe gcc has ever respected the __aligned__ attribute
on stack allocations.  It silently ignores it, which causes a lot of
confusion.  The difference is that debian gcc-3.0 has BIGGEST_ALIGNMENT
set to 128 while it is 64 in 3.2 and later.  BIGGEST_ALIGNMENT is used for
the alignment of structures allocated on the stack.  It is the maximum
alignment needed for any type.  So, in practice, it is set by the alignment
needed for long doubles.  This is specified to be 64 bits in the 32-bit
hpux runtime as there are no quad-precision load and store instructions.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Hi Dave,

Some month ago we already spook about a similar pb (<http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/018938.html>)
but that was an ld pb and now it is an "Assembler" pb:

 g3.3 -DHAVE_CONFIG_H -I. -I/CAD/OpenCascade/src/OCC/OCC/src/TKFillet -I../..
-I/CAD/OpenCascade/src/OCC/OCC/inc -I/CAD/OpenCascade/src/OCC/OCC/drv/ChFiDS
-I/CAD/OpenCascade/src/OCC/OCC/drv/ChFi2d -I/CAD/OpenCascade/src/OCC/OCC/drv/ChFi3d
-I/CAD/OpenCascade/src/OCC/OCC/drv/ChFiKPart -I/CAD/OpenCascade/src/OCC/OCC/drv/Blend
-I/CAD/OpenCascade/src/OCC/OCC/drv/BRepBlend -I/CAD/OpenCascade/src/OCC/OCC/drv/BlendFunc
-I/CAD/OpenCascade/src/OCC/OCC/drv/BRepFilletAPI -I/CAD/OpenCascade/src/OCC/OCC/drv/FilletSurf
-g -O2 -DCSFDB -MT ChFi3d_Builder_CnCrn.lo -MD -MP -MF .deps/ChFi3d_Builder_CnCrn.Tpo
-c /CAD/OpenCascade/src/OCC/OCC/src/ChFi3d/ChFi3d_Builder_CnCrn.cxx  -fPIC
-DPIC -o .libs/ChFi3d_Builder_CnCrn.o
/tmp/ccQuyyIf.s: Assembler messages:
/tmp/ccQuyyIf.s:146240: Error: Field out of range [-262144..262143] (-290528).
make[3]: *** [ChFi3d_Builder_CnCrn.lo] Error 1
make[3]: Leaving directory `/CAD/OpenCascade/build-40/src/TKFillet'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/CAD/OpenCascade/build-40/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/CAD/OpenCascade/build-40'
make: *** [all] Error 2

palx2000:/CAD/OpenCascade/build-40# dpkg -l g3.3
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name                    Version                 Description
=======================-=======================-==============================================================
ii  g3.3                 3.3-3                   The GNU C compiler

This occurs as well with binutils 2.13.90.0.18-1.7 as with 2.14.90.0.4-0.1.

OTC according gcc br 10274 (<http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10274>)
which I filled in because of a ICE (in its time), binutils 2.13.2.1 would
solved this pb (but unfortunately not debian available). What should I do
more to help to fix this?

Thanks in advance,
    Joel

---------------------------------
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From - Thu Nov 08 21:28:06 2018
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From: "Zlatan Jukic" <zlatan.jukic@fh-vorarlberg.ac.at>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Visualize EG-card on HP-PARISC C360?!
Date: Tue, 17 Jun 2003 15:43:04 +0200
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This is a multi-part message in MIME format.

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Sehr geehrte Damen und Herren,=20

=20

Deutsch:

=20
-------------------------------------------------------------------------=
---
---------------------------------------------------------

ich habe neulich Debian Linux 3.0 auf unsere Maschine HP PA-RISC C360=20

installiert. Ich konnte leider X-Windows System nicht starten, weil es=20

von FX-4 Grafikkarte nicht unterst=FCtzt wird.

=20

Meine Frage ist hier: Muss ich eine andere Karte einbauen (und welche =
??),=20

um X-Windows System starten zu k=F6nnen..

=20

Laut Debian-HPPA sollte die =84Visualize EG=93 funktionieren. Diese =
Karte ist

eine 24-bit-Grafikkarte, die unter Linux als "Coral" erkannt wird,
funktiniert=20

bestens mit HP 715-64, in der C360 wird sie nicht erkannt (Probleme mit =
dem
GSC-Bus !?).

Ich habe dies aus dem Internet erfahren, weiss aber nicht ob das stimmt!

=20

Die Frage ist ob diese Karte von HP-Visualize PA-RISC C360 =
Hardwer-Platforme


und vomLinux-Debian 3.0 unterst=FCtzt werden kann?

=20

Anderseits, habe ich erfahren dass es hier um ein reines Linux (Debian)
Problem geht!?

=20

Falls mir n=E4mlich eine Visualize EG Karte helfen kann, w=FCrde ich sie =
gerne
bestellen!=20

=20

=20

English

=20

I installed recently Debian Linux 3,0 on our machine HP PA-RISC for =
C360. =20

I could not start unfortunately the X-Windows system, because it is not
supported by Fx-4 video card.?!

=20

My question is here:  Must I insert another card (and which??),  in =
order to
start X-Windows-system?

=20

According to Debian HPPA, the Visualize EG should correct to function. =20

This card is a 24-bit-video-card, which is recognized in the best way =
under
Linux as "Coral" with HP 715-64,=20

in the C360 it is not recognized (problems with the GSC bus!?).

=20

The question is whether this card can be supported from the HP Visualize
PA-RISC C360 hardware and from Linux Debian 3,0?

=20

On the other hand, I have experienced that it is a problem of the Linux-
(Debian) operating-system!? =20

=20

If can me help a Visualize EG-card i would order it gladly!=20

=20

Thanks for all your assistance,

kind regards, Zlatan

=20

=20

********************************************

Zlatan Jukic,

Fachhochschule Vorarlberg GmbH

Achstrasse 1

A-6850 Dornbirn

URL:    <http://www.fh-vorarlberg.at> http://www.fh-vorarlberg.at

email:  <mailto:zlatan.jukic@fh-vorarlberg.ac.at>
zlatan.jukic@fh-vorarlberg.ac.at

Phone: ++43 (0)5572 20336 167
Fax: ++43 (0)5572 20336 100

********************************************

=20


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<body lang=3DEN-US link=3Dblue vlink=3Dpurple>

<div class=3DSection1>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>Sehr geehrte Damen und Herren, =
</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><b><i><u><font size=3D2 face=3DArial><span =
lang=3DDE-AT
style=3D'font-size:10.0pt;font-family:Arial;background:yellow;font-weight=
:bold;
font-style:italic'>Deutsch:</span></font></u></i></b></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;-----------------------------------------=
-------------------------------------------------------------------------=
-------------------</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>ich habe neulich Debian Linux 3.0 auf unsere =
Maschine
<b><span style=3D'font-weight:bold'>HP PA-RISC C360</span></b> =
</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>installiert. Ich konnte leider X-Windows =
System nicht
starten, weil es </span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>von FX-4 Grafikkarte nicht unterst=FCtzt =
wird.</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>Meine Frage ist hier: Muss ich eine andere =
Karte
einbauen (und welche ??), </span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>um X-Windows System starten zu =
k=F6nnen..</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>Laut Debian-HPPA sollte die <b><span
style=3D'background:yellow;font-weight:bold'>&#8222;Visualize =
EG&#8220;</span></b>
funktionieren. Diese Karte ist</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>eine 24-bit-Grafikkarte, die unter Linux als =
&quot;Coral&quot;
erkannt wird, funktiniert </span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>bestens mit HP 715-64, in der <b><span
style=3D'font-weight:bold'>C360</span></b> wird sie nicht erkannt =
(Probleme mit
dem GSC-Bus !?).</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>Ich habe dies aus dem Internet erfahren, weiss =
aber
nicht ob das stimmt!</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><b><i><font size=3D2 face=3DArial><span =
lang=3DDE-AT
style=3D'font-size:10.0pt;font-family:Arial;background:yellow;font-weight=
:bold;
font-style:italic'>Die Frage ist ob diese Karte von HP-Visualize PA-RISC =
C360 Hardwer-Platforme
</span></font></i></b></p>

<p class=3DMsoNormal><b><i><font size=3D2 face=3DArial><span =
lang=3DDE-AT
style=3D'font-size:10.0pt;font-family:Arial;background:yellow;font-weight=
:bold;
font-style:italic'>und vomLinux-Debian 3.0 unterst=FCtzt werden =
kann?</span></font></i></b></p>

<p class=3DMsoNormal><b><i><font size=3D2 face=3DArial><span =
lang=3DDE-AT
style=3D'font-size:10.0pt;font-family:Arial;font-weight:bold;font-style:i=
talic'>&nbsp;</span></font></i></b></p>

<p class=3DMsoNormal><b><i><font size=3D2 face=3DArial><span =
lang=3DDE-AT
style=3D'font-size:10.0pt;font-family:Arial;background:yellow;font-weight=
:bold;
font-style:italic'>Anderseits, habe ich erfahren dass es hier um ein =
reines Linux
(Debian) Problem geht!?</span></font></i></b></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<div style=3D'border:none;border-bottom:solid windowtext =
1.0pt;padding:0cm 0cm 1.0pt 0cm'>

<p class=3DMsoNormal style=3D'border:none;padding:0cm'><font size=3D2 =
face=3DArial><span
lang=3DDE-AT style=3D'font-size:10.0pt;font-family:Arial'>Falls mir =
n=E4mlich eine <b><span
style=3D'background:yellow;font-weight:bold'>Visualize EG</span></b> =
Karte helfen
kann, w=FCrde ich sie gerne bestellen! </span></font></p>

<p class=3DMsoNormal style=3D'border:none;padding:0cm'><font size=3D2 =
face=3DArial><span
lang=3DDE-AT =
style=3D'font-size:10.0pt;font-family:Arial'>&nbsp;</span></font></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3DArial><span lang=3DDE-AT =
style=3D'font-size:
12.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><b><i><u><font size=3D3 face=3DArial><span =
style=3D'font-size:
12.0pt;font-family:Arial;background:yellow;font-weight:bold;font-style:it=
alic'>English</span></font></u></i></b></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I installed recently Debian Linux 3,0 on our machine =
HP
PA-RISC for C360.=A0 </span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I could not start unfortunately the X-Windows system,
because it is not supported by Fx-4 video card.?!</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>My question is here:=A0 Must I insert another card =
(and
which??),=A0 in order to start X-Windows-system?</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>According to Debian HPPA, the <b><span =
style=3D'background:
yellow;font-weight:bold'>Visualize EG</span></b> should correct to =
function.=A0 </span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>This card is a 24-bit-video-card, which is recognized =
in the
best way under Linux as &quot;Coral&quot; with HP 715-64, =
</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>in the C360 it is not recognized (problems with the =
GSC
bus!?).</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><b><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial;background:yellow;font-weight:bold'>The question is =
whether
this card can be supported from the HP Visualize PA-RISC C360 hardware =
and from
Linux Debian 3,0?</span></font></b></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><b><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial;background:yellow;font-weight:bold'>On the other hand, =
I have
experienced that it is a problem of the Linux- (Debian) =
operating-system!?</span></font></b><b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;font-weight:
bold'>=A0 </span></font></b></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>If can me help a Visualize EG-card i would order it =
gladly!&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Thanks for all your assistance,</span></font></p>

<div style=3D'border:none;border-bottom:solid windowtext =
1.0pt;padding:0cm 0cm 1.0pt 0cm'>

<p class=3DMsoNormal style=3D'border:none;padding:0cm'><font size=3D2 =
face=3DArial><span
lang=3DDE-AT style=3D'font-size:10.0pt;font-family:Arial'>kind regards, =
Zlatan</span></font></p>

</div>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>********************************************</span></f=
ont></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
lang=3DDE-AT
style=3D'font-size:10.0pt;font-family:AvenirBookFH'>Zlatan =
Jukic,</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
lang=3DDE-AT
style=3D'font-size:10.0pt;font-family:AvenirBookFH'>Fachhochschule =
Vorarlberg
GmbH</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
lang=3DDE-AT
style=3D'font-size:10.0pt;font-family:AvenirBookFH'>Achstrasse =
1</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
style=3D'font-size:10.0pt;
font-family:AvenirBookFH'>A-6850 Dornbirn</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
style=3D'font-size:10.0pt;
font-family:AvenirBookFH'>URL:</span></font><font size=3D2><span
style=3D'font-size:10.0pt'>&nbsp;&nbsp;</span></font><font size=3D2
face=3DAvenirBookFH><span =
style=3D'font-size:10.0pt;font-family:AvenirBookFH'> </span></font><a
href=3D"http://www.fh-vorarlberg.at"><font size=3D2 =
face=3DAvenirBookFH><span
style=3D'font-size:10.0pt;font-family:AvenirBookFH'>http://www.fh-vorarlb=
erg.at</span></font></a></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
style=3D'font-size:10.0pt;
font-family:AvenirBookFH'>email: </span></font><a
href=3D"mailto:zlatan.jukic@fh-vorarlberg.ac.at"><font size=3D2 =
face=3DAvenirBookFH><span
style=3D'font-size:10.0pt;font-family:AvenirBookFH'>zlatan.jukic@fh-vorar=
lberg.ac.at</span></font></a></p>

<p class=3DMsoNormal><font size=3D2 face=3DAvenirBookFH><span =
style=3D'font-size:10.0pt;
font-family:AvenirBookFH'>Phone: ++43 (0)5572 20336 167<br>
Fax: ++43 (0)5572 20336 100</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>********************************************</span></f=
ont></p>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;</span></font></p>

</div>

</body>

</html>

------=_NextPart_000_000B_01C334E7.24B187D0--



From - Thu Nov 08 21:28:06 2018
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Subject: [parisc-linux] Re: g++ (3.3): ...Error: Field out of range
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Xref: news.gmane.org gmane.linux.ports.parisc:18680

Hi Joel,

>  g3.3 -DHAVE_CONFIG_H -I. -I/CAD/OpenCascade/src/OCC/OCC/src/TKFillet -I../..
> -I/CAD/OpenCascade/src/OCC/OCC/inc -I/CAD/OpenCascade/src/OCC/OCC/drv/ChFiDS
> -I/CAD/OpenCascade/src/OCC/OCC/drv/ChFi2d -I/CAD/OpenCascade/src/OCC/OCC/drv/ChFi3d
> -I/CAD/OpenCascade/src/OCC/OCC/drv/ChFiKPart -I/CAD/OpenCascade/src/OCC/OCC/drv/Blend
> -I/CAD/OpenCascade/src/OCC/OCC/drv/BRepBlend -I/CAD/OpenCascade/src/OCC/OCC/drv/BlendFunc
> -I/CAD/OpenCascade/src/OCC/OCC/drv/BRepFilletAPI -I/CAD/OpenCascade/src/OCC/OCC/drv/FilletSurf
> -g -O2 -DCSFDB -MT ChFi3d_Builder_CnCrn.lo -MD -MP -MF .deps/ChFi3d_Builder_CnCrn.Tpo
> -c /CAD/OpenCascade/src/OCC/OCC/src/ChFi3d/ChFi3d_Builder_CnCrn.cxx  -fPIC
> -DPIC -o .libs/ChFi3d_Builder_CnCrn.o
> /tmp/ccQuyyIf.s: Assembler messages:
> /tmp/ccQuyyIf.s:146240: Error: Field out of range [-262144..262143] (-290528).
> make[3]: *** [ChFi3d_Builder_CnCrn.lo] Error 1
> make[3]: Leaving directory `/CAD/OpenCascade/build-40/src/TKFillet'
> make[2]: *** [all-recursive] Error 1
> make[2]: Leaving directory `/CAD/OpenCascade/build-40/src'
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory `/CAD/OpenCascade/build-40'
> make: *** [all] Error 2
> 
> palx2000:/CAD/OpenCascade/build-40# dpkg -l g3.3
> Desired=Unknown/Install/Remove/Purge/Hold
> | Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
> |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
> ||/ Name                    Version                 Description
> =======================-=======================-==============================================================
> ii  g3.3                 3.3-3                   The GNU C compiler
> 
> This occurs as well with binutils 2.13.90.0.18-1.7 as with 2.14.90.0.4-0.1.
> 
> OTC according gcc br 10274 (<http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10274>)
> which I filled in because of a ICE (in its time), binutils 2.13.2.1 would
> solved this pb (but unfortunately not debian available). What should I do
> more to help to fix this?

You could try assembling with the current cvs version of binutils.  You
can generate an assembler file by changing `-c' to `-S' and the output
file name in the above command.  This will allow you to look at the
assembler line in question and see whether this is a problem with stubs
or not (i.e., something other than a branch to a function).  As this is
C++ code, there might be a huge number of small functions causing overflow
of the stub table.

The stub table fix was done quite sometime ago and I would have thought
that recent debian versions of binutils would have it.

If this is not a stub table overflow problem, please file a gcc PR
including the preprocessed source from the above command.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: =?ISO-8859-15?Q?R=FCdiger_Scholz?= <r.scholz@bluehash.de>
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Subject: [parisc-linux] Some 2.5-testing
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Xref: news.gmane.org gmane.linux.ports.parisc:18681

Hi there,

I tried to get a running 2.5.70 kernel on my 715/100, but booting 
results in an endless loop with the following error:

    Badness in local_bh_enable at kernel/softirq.c:109
    Kernel addresses on the stack:
     [<10123d54>]  [<10105884>]  [<10127610>]  [<10285e0c>]
     [<102868c4>]  [<10285828>]  [<10287360>]  [<1012b6ac>]
     [<10287624>]  [<1012782c>]  [<101275c8>]  [<10175800>]
     [<10107000>]  [<101876ac>]  [<1010a068>]  [<10285828>]
     [<1028e468>]  [<103951b8>]  [<10123d54>]  [<1028f904>]
     [<1039541c>]  [<10100278>]  [<10109c5c>]

Only way to stop it, is to pull the plug...
Does anyone know a solution?
Another thing:  During compile I get this warning several times:   
"Warning: long unsigned int format, time_t arg (arg XX)" (But perhaps 
this warning is solved with the fixes jejb uploaded currently)

Some more informations:

    Kernel was generated  via make distclean, make oldconfig, make vmlinux.
    During compile I get this warning several times:   "Warnung: long 
unsigned int format, time_t arg (arg XX)"
    OS: Debian testing with gcc-3.3 and glibc-2.3.16
    HW: HP 715/100 with serial console and HIL-adaptor box (but no mouse 
or keyboard is connected to the adaptor)
    Debug: System.map and complete bootlog is here: 
http://rscholz.bluehash.de/parisc/

TIA,
    Ruediger






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Subject: Re: [parisc-linux] Some 2.5-testing
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Xref: news.gmane.org gmane.linux.ports.parisc:18682

> I tried to get a running 2.5.70 kernel on my 715/100, but booting 
> results in an endless loop with the following error:

Until issues related to the canonicalization of function pointers
and the alignment of stack locals are resolved, it is best to stick
with debian gcc-3.0.4 for kernel building.  Loops of this kind can
happen when lock structures are misaligned on PA 1.1 machines.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] Re: Visualize EG card on HP PARISC C360
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On Tue, Jun 17, 2003 at 04:17:02PM +0200, Zlatan Jukic wrote:
> I could not start unfortunately the X-Windows system, because it is not
> supported by Fx-4 video card.?!

correct

> My question is here:  Must I insert another card (and which??),  in order to
> start X-Windows-system?

> According to Debian HPPA, the Visualize EG should correct to function.  

yes. *PCI* version of the card.
Vis-EG HSC card might also work.

> This card is a 24-bit-video-card, which is recognized in the best way under
> Linux as "Coral" with HP 715-64, 

Is that really a Vis-EG HSC card?
Can you post "dmesg" output where STI describes the card?

grant


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Hi Dave,

Shame on me: I forgot to test with different compression option.

I just do it and the problem doesn't occure any more without -O2 or with
-O1?


> You could try assembling with the current cvs version of binutils.  You
> can generate an assembler file by changing `-c' to `-S' and the output
> file name in the above command.  This will allow you to look at the
> assembler line in question and see whether this is a problem with stubs
> or not (i.e., something other than a branch to a function).  As this is
> C++ code, there might be a huge number of small functions causing overflow
> of the stub table.
> 
> The stub table fix was done quite sometime ago and I would have thought
> that recent debian versions of binutils would have it.
> 
> If this is not a stub table overflow problem, please file a gcc PR
> including the preprocessed source from the above command.

Never the less I will try to rebuild cvs binutils then check if the pb continue.

See you later,
    Joel


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> Shame on me: I forgot to test with different compression option.
> 
> I just do it and the problem doesn't occure any more without -O2 or with
> -O1?

The optimization level affects inlining and as a result the size of
functions.  There has been a lot of discussion on the gcc lists related
to problems with inlining with the new tree inliner in 3.3, particularly
in C++ code.  So, the problem should be looked at even if there is a
work around.  The first step is to determine whether this is a gcc or
binutils problem (i.e., we need to know if the size of the stub table
has overflowed or if gcc has miscalculated an offset).

It would be a big help if you would generate the preprocessed source
code using the exact command that fails except for changing `-c' to `-E',
and then submit it in a gcc bug report describing the failure.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] Re: Visualize EG card on HP PARISC C360
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Yes, there is an HSC EG card.  Used it in my C360 before I sold it.  The PCI version of the card has more memory on it though.
 
derek

Grant Grundler <grundler@parisc-linux.org> wrote:
On Tue, Jun 17, 2003 at 04:17:02PM +0200, Zlatan Jukic wrote:
> I could not start unfortunately the X-Windows system, because it is not
> supported by Fx-4 video card.?!

correct

> My question is here: Must I insert another card (and which??), in order to
> start X-Windows-system?

> According to Debian HPPA, the Visualize EG should correct to function. 

yes. *PCI* version of the card.
Vis-EG HSC card might also work.

> This card is a 24-bit-video-card, which is recognized in the best way under
> Linux as "Coral" with HP 715-64, 

Is that really a Vis-EG HSC card?
Can you post "dmesg" output where STI describes the card?

grant
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<DIV>Yes, there is an HSC EG card.&nbsp; Used it in my C360 before I sold it.&nbsp; The PCI version of the card has more memory on it though.</DIV>
<DIV>&nbsp;</DIV>
<DIV>derek<BR><BR><B><I>Grant Grundler &lt;grundler@parisc-linux.org&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">On Tue, Jun 17, 2003 at 04:17:02PM +0200, Zlatan Jukic wrote:<BR>&gt; I could not start unfortunately the X-Windows system, because it is not<BR>&gt; supported by Fx-4 video card.?!<BR><BR>correct<BR><BR>&gt; My question is here: Must I insert another card (and which??), in order to<BR>&gt; start X-Windows-system?<BR><BR>&gt; According to Debian HPPA, the Visualize EG should correct to function. <BR><BR>yes. *PCI* version of the card.<BR>Vis-EG HSC card might also work.<BR><BR>&gt; This card is a 24-bit-video-card, which is recognized in the best way under<BR>&gt; Linux as "Coral" with HP 715-64, <BR><BR>Is that really a Vis-EG HSC card?<BR>Can you post "dmesg" output where STI describes the card?<BR><B
 R>grant<BR>_______________________________________________<BR>parisc-linux mailing
 list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><hr SIZE=1>
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Hi Dave,

Sorry for delay (even with my speedy b2k, it takes some time for optimizing
this stuff :-) ).

> The optimization level affects inlining and as a result the size of
> functions.  There has been a lot of discussion on the gcc lists related
> to problems with inlining with the new tree inliner in 3.3, particularly
> in C++ code.  So, the problem should be looked at even if there is a
> work around.  The first step is to determine whether this is gcc or
> binutils problem (i.e., we need to know if the size of the stub table
> has overflowed or if gcc has miscalculated an offset).

Finaly, here we are:

a) The same bad result with -O2 and today cvs binutils :-(
# as --version

GNU assembler 2.14.90 20030618
Copyright 2002 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License.  This program has absolutely no warranty.
This assembler was configured for a target of `hppa-linux'.

# as -o t.o ChFi3d_Builder_CnCrn.s-O2
ChFi3d_Builder_CnCrn.s-O2: Assembler messages:
ChFi3d_Builder_CnCrn.s-O2:146240: Error: Field out of range [-262144..262143]
(-290528).

b) the pre-asm around line 146240:
[...]
 146234 .LBB15456:   
 146235         copy %r4,%r19
 146236         ldo 7216(%r22),%r22
 146237         addl %r22,%r30,%r22
 146238 .LBE15456:
 146239         ftest
 146240         b .L6999
 146241         stw %r23,0(%r22)
 146242         stw %r0,0(%r22)
 146243         stw %r1,-12(%r30)
 146244         bl .+8,%r1
 146245         addil L'.L6999-$PIC_pcrel$0+4,%r1  
 146246         ldo R'.L6999-$PIC_pcrel$0+8(%r1),%r1
 146247         bv %r0(%r1)
 146248         ldw -12(%r30),%r1
 146249 .L7131:

[...]

(iirc b .L6999 means branch _b_ack to label .L6999 
if yes here is also text around this location:
[...]

  29378 .L6999:
  29379         .loc 1 1000 0   
  29380         ldil L'-16384,%r20
  29381         .loc 1 1001 0
  29382         ldil L'-16384,%r22
  29383         .loc 1 1000 0
  29384         ldo 7208(%r20),%r20
  29385         .loc 1 1001 0
  29386         ldil L'-16384,%r23
  29387         .loc 1 1000 0
  29388         addl %r20,%r30,%r20
  29389         .loc 1 1001 0
  29390         ldo 6308(%r22),%r22
  29391         .loc 1 1000 0
  29392         ldw 0(%r20),%r20
  29393 .LBE4386:
[...])

It is well a stub table pb?

If not I will procede next step tomorrow :-)

Thanks again for your attention and patience,
    Joel


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Hello Derek and all,

=20

Thank you for your assistance.  Thank you Grant, too!

=20

You already tested this card (Vis EG HSC) on your HP-Visualize C360 =
machine.
The X-Windows system should be started in this case. =20

Can you say me please, where can I find/order and buy this card?

=20

Thank you very much,

Kind regards, Zlatan

=20

-----Original Message-----
From: Derek Engelhaupt [mailto:derekengelhaupt@rocketmail.com]=20
Sent: Mittwoch, 18. Juni 2003 18:00
To: Grant Grundler; Jukic Zlatan
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Re: Visualize EG card on HP PARISC C360

=20

Yes, there is an HSC EG card.  Used it in my C360 before I sold it.  The =
PCI
version of the card has more memory on it though.

=20

derek

Grant Grundler <grundler@parisc-linux.org> wrote:

On Tue, Jun 17, 2003 at 04:17:02PM +0200, Zlatan Jukic wrote:
> I could not start unfortunately the X-Windows system, because it is =
not
> supported by Fx-4 video card.?!

correct

> My question is here: Must I insert another card (and which??), in =
order to
> start X-Windows-system?

> According to Debian HPPA, the Visualize EG should correct to function. =


yes. *PCI* version of the card.
Vis-EG HSC card might also work.

> This card is a 24-bit-video-card, which is recognized in the best way
under
> Linux as "Coral" with HP 715-64,=20

Is that really a Vis-EG HSC card?
Can you post "dmesg" output where STI describes the card?

grant
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

  _____ =20

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SBC
<http://pa.yahoo.com/*http:/rd.yahoo.com/evt=3D1207/*http:/promo.yahoo.co=
m/sbc
/>  Yahoo! DSL - Now only $29.95 per month!


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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Hello Derek and =
all,</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Thank you for your =
assistance.&nbsp; Thank
you Grant, too!</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>You already tested this card (Vis =
EG HSC)
on your HP-Visualize C360 machine. The X-Windows system should be =
started in
this case.&nbsp; </span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Can you say me please, where can I =
find/order
and buy this card?</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Thank you very =
much,</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Kind regards, =
Zlatan</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> Derek Engelhaupt =
[mailto:derekengelhaupt@rocketmail.com]
<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Mittwoch, 18. Juni =
2003
18:00<br>
<b><span style=3D'font-weight:bold'>To:</span></b> Grant Grundler; Jukic =
Zlatan<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b>
parisc-linux@lists.parisc-linux.org<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> Re: =
[parisc-linux] Re:
Visualize EG card on HP PARISC C360</span></font></p>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>&nbsp;</span></font></p>

<div>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>Yes, there is =
an HSC EG
card.&nbsp; Used it in my C360 before I sold it.&nbsp; The PCI version =
of the
card has more memory on it though.</span></font></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>&nbsp;</span></font></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>derek<br>
<br>
<b><i><span style=3D'font-weight:bold;font-style:italic'>Grant Grundler
&lt;grundler@parisc-linux.org&gt;</span></i></b> =
wrote:</span></font></p>

</div>

<blockquote style=3D'border:none;border-left:solid #1010FF =
1.5pt;padding:0cm 0cm 0cm 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>On =
</span></font>Tue, Jun 17, 2003 at 04:17:02PM +0200, Zlatan Jukic =
wrote:<br>
&gt; I could not start unfortunately the X-Windows system, because it is =
not<br>
&gt; supported by Fx-4 video card.?!<br>
<br>
correct<br>
<br>
&gt; My question is here: Must I insert another card (and which??), in =
order to<br>
&gt; start X-Windows-system?<br>
<br>
&gt; According to Debian HPPA, the Visualize EG should correct to =
function. <br>
<br>
yes. *PCI* version of the card.<br>
Vis-EG HSC card might also work.<br>
<br>
&gt; This card is a 24-bit-video-card, which is recognized in the best =
way
under<br>
&gt; Linux as &quot;Coral&quot; with HP 715-64, <br>
<br>
Is that really a Vis-EG HSC card?<br>
Can you post &quot;dmesg&quot; output where STI describes the card?<br>
<br>
grant<br>
_______________________________________________<br>
parisc-linux mailing list<br>
parisc-linux@lists.parisc-linux.org<br>
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</p>

</blockquote>

<div class=3DMsoNormal align=3Dcenter =
style=3D'margin-left:36.0pt;text-align:center'><font
size=3D3 face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D1 width=3D"100%" align=3Dcenter>

</span></font></div>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>Do you =
Yahoo!?<br>
<a
href=3D"http://pa.yahoo.com/*http:/rd.yahoo.com/evt=3D1207/*http:/promo.y=
ahoo.com/sbc/">SBC
Yahoo! DSL</a> - Now only $29.95 per month!</span></font></p>

</div>

</body>

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From - Thu Nov 08 21:28:06 2018
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Subject: Re: [parisc-linux] Re: g++ (3.3): ...Error: Field out of range
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Xref: news.gmane.org gmane.linux.ports.parisc:18689

> It is well a stub table pb?

No, this is a gcc pb.  Please proceed with a PR.  I can see the
problem.  There isn't support for long floating-point branches
in the machine definition :(

I would suggest that the code being generated for this
function isn't going to be very good.  Whenever at function
exceeds 240KB in size, then GCC needs to generate long branches
for function calls and some internal branches.  These sequences
are much longer and less efficient.  You can tweak the parameters
of the GCC's inlining model and probably reduce the size of
the generated code.  The parameters are settable from the
command line and are documented in the manual, etc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] Re: Visualize EG card on HP PARISC C360
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On Wed, Jun 18, 2003 at 06:56:38PM +0200, Zlatan Jukic wrote:
> You already tested this card (Vis EG HSC) on your HP-Visualize C360 machine.
> The X-Windows system should be started in this case.  
> 
> Can you say me please, where can I find/order and buy this card?

I don't know.  google? ebay?

grant


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You will need one of the following cards:  A4977A (PCI), A4450A (GSC), or A4451A (GSC dual head).  Part numbers are listed below.  You will also need an EVC to 15-pin converter for all of these cards and that part number is listed below also.  All of this info came from partsurfer.hp.com (no "www" in front of it).  There is a PCI EG card for sale on Ebay:  
 
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3031053367&category=11221
 
Looks like Cypress Tech ( sales@cypress-tech.com) have some of the A4450A GSC cards, but I've never had any dealings with them.  Their prices on Ebay seem high though.   Good luck.
 
A4450-66501636.00VISUALIZE-EG graphic accelerator board - For 2D and 3D wireframe graphics - Includes color recovery (P/O A4450A) 


A4451-665011644.00Dual VISUALIZE-EG graphic accelerator board - For 2D and 3D wireframe graphics - Includes color recovery (A4451A) 
 
1253-063528.00Enhanced Video Connector (EVC) video adapter cable - EVC(M) to 15-pin(F) - 7.87in (0.2m) long - Used to connect EVC video output to 15-pin monitor 
 
A4977-66501VIZUALIZE-EG/PCI 

Zlatan Jukic <zlatan.jukic@fh-vorarlberg.ac.at> wrote:

Hello Derek and all,

 

Thank you for your assistance.  Thank you Grant, too!

 

You already tested this card (Vis EG HSC) on your HP-Visualize C360 machine. The X-Windows system should be started in this case.  

Can you say me please, where can I find/order and buy this card?

 

Thank you very much,

Kind regards, Zlatan

 

-----Original Message-----
From: Derek Engelhaupt [mailto:derekengelhaupt@rocketmail.com] 
Sent: Mittwoch, 18. Juni 2003 18:00
To: Grant Grundler; Jukic Zlatan
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Re: Visualize EG card on HP PARISC C360

 

Yes, there is an HSC EG card.  Used it in my C360 before I sold it.  The PCI version of the card has more memory on it though.


 


derek

Grant Grundler <grundler@parisc-linux.org> wrote:


On Tue, Jun 17, 2003 at 04:17:02PM +0200, Zlatan Jukic wrote:
> I could not start unfortunately the X-Windows system, because it is not
> supported by Fx-4 video card.?!

correct

> My question is here: Must I insert another card (and which??), in order to
> start X-Windows-system?

> According to Debian HPPA, the Visualize EG should correct to function. 

yes. *PCI* version of the card.
Vis-EG HSC card might also work.

> This card is a 24-bit-video-card, which is recognized in the best way under
> Linux as "Coral" with HP 715-64, 

Is that really a Vis-EG HSC card?
Can you post "dmesg" output where STI describes the card?

grant
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

---------------------------------


Do you Yahoo!?
SBC Yahoo! DSL - Now only $29.95 per month!



---------------------------------
Do you Yahoo!?
SBC Yahoo! DSL - Now only $29.95 per month!
--0-827210007-1055980438=:53760
Content-Type: text/html; charset=us-ascii

<DIV>You will need one of the following cards:&nbsp; A4977A (PCI), A4450A (GSC), or A4451A (GSC dual head).&nbsp; Part numbers are listed below.&nbsp; You will also need an EVC to 15-pin converter for all of these cards and that part number is listed below also.&nbsp; All of this info came from partsurfer.hp.com (no "www" in front of it).&nbsp; There is a PCI EG card for sale on Ebay:&nbsp; </DIV>
<DIV>&nbsp;</DIV>
<DIV><A href="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;item=3031053367&amp;category=11221">http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;item=3031053367&amp;category=11221</A></DIV>
<DIV>&nbsp;</DIV>
<DIV>Looks like Cypress Tech (<STRONG> </STRONG><A href="mailto:sales@cypress-tech.com"><STRONG>sales@cypress-tech.com</STRONG></A>)&nbsp;have some of the A4450A GSC cards, but I've never had any dealings with them.&nbsp; Their prices on Ebay seem high though.&nbsp;&nbsp; Good luck.</DIV>
<DIV>&nbsp;</DIV>
<DIV>
<TABLE cellSpacing=0 cellPadding=4 border=1 VALIGN="top">
<TBODY>
<TR vAlign=top bgColor=#cccccc>
<TD><NOBR>A4450-66501</NOBR></TD>
<TD align=right><NOBR>636.00</NOBR></TD>
<TD>
<TABLE cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR>
<TD>VISUALIZE-EG graphic accelerator board - For 2D and 3D wireframe graphics - Includes color recovery (P/O A4450A) </TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></DIV>
<DIV><BR></DIV>
<DIV>
<TABLE cellSpacing=0 cellPadding=4 border=1 VALIGN="top">
<TBODY>
<TR vAlign=top bgColor=#cccccc>
<TD><NOBR>A4451-66501</NOBR></TD>
<TD align=right><NOBR>1644.00</NOBR></TD>
<TD>
<TABLE cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR>
<TD>Dual VISUALIZE-EG graphic accelerator board - For 2D and 3D wireframe graphics - Includes color recovery (A4451A) </TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></DIV>
<DIV>&nbsp;</DIV>
<DIV>
<TABLE cellSpacing=0 cellPadding=4 border=1 VALIGN="top">
<TBODY>
<TR vAlign=top bgColor=#e6e6e6>
<TD><NOBR>1253-0635</NOBR></TD>
<TD align=right><NOBR>28.00</NOBR></TD>
<TD>
<TABLE cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR>
<TD>Enhanced Video Connector (EVC) video adapter cable - EVC(M) to 15-pin(F) - 7.87in (0.2m) long - Used to connect EVC video output to 15-pin monitor </TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></DIV>
<DIV>&nbsp;</DIV>
<DIV>
<TABLE cellSpacing=0 cellPadding=4 border=1 VALIGN="top">
<TBODY>
<TR vAlign=top bgColor=#cccccc>
<TD><NOBR>A4977-66501</NOBR></TD>
<TD>
<TABLE cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR>
<TD>VIZUALIZE-EG/PCI </TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE><!--END OF OUTPUT FROM showpartlist--></DIV>
<DIV><BR><B><I>Zlatan Jukic &lt;zlatan.jukic@fh-vorarlberg.ac.at&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">
<META content="Microsoft Word 10 (filtered)" name=Generator>
<STYLE>
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<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Hello Derek and all,</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Thank you for your assistance.&nbsp; Thank you Grant, too!</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">You already tested this card (Vis EG HSC) on your HP-Visualize C360 machine. The X-Windows system should be started in this case.&nbsp; </SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Can you say me please, where can I find/order and buy this card?</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Thank you very much,</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Kind regards, Zlatan</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
<P class=MsoNormal style="MARGIN-LEFT: 36pt"><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original Message-----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Derek Engelhaupt [mailto:derekengelhaupt@rocketmail.com] <BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Mittwoch, 18. Juni 2003 18:00<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Grant Grundler; Jukic Zlatan<BR><B><SPAN style="FONT-WEIGHT: bold">Cc:</SPAN></B> parisc-linux@lists.parisc-linux.org<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [parisc-linux] Re: Visualize EG card on HP PARISC C360</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 36pt"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT>&nbsp;</P>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 36pt"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">Yes, there is an HSC EG card.&nbsp; Used it in my C360 before I sold it.&nbsp; The PCI version of the card has more memory on it though.</SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 36pt"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT>&nbsp;</P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 36pt"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">derek<BR><BR><B><I><SPAN style="FONT-WEIGHT: bold; FONT-STYLE: italic">Grant Grundler &lt;grundler@parisc-linux.org&gt;</SPAN></I></B> wrote:</SPAN></FONT></P></DIV>
<BLOCKQUOTE style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; MARGIN-TOP: 5pt; PADDING-LEFT: 4pt; MARGIN-BOTTOM: 5pt; PADDING-BOTTOM: 0cm; MARGIN-LEFT: 3.75pt; BORDER-LEFT: #1010ff 1.5pt solid; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none">
<P class=MsoNormal style="MARGIN-LEFT: 36pt"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">On </SPAN></FONT>Tue, Jun 17, 2003 at 04:17:02PM +0200, Zlatan Jukic wrote:<BR>&gt; I could not start unfortunately the X-Windows system, because it is not<BR>&gt; supported by Fx-4 video card.?!<BR><BR>correct<BR><BR>&gt; My question is here: Must I insert another card (and which??), in order to<BR>&gt; start X-Windows-system?<BR><BR>&gt; According to Debian HPPA, the Visualize EG should correct to function. <BR><BR>yes. *PCI* version of the card.<BR>Vis-EG HSC card might also work.<BR><BR>&gt; This card is a 24-bit-video-card, which is recognized in the best way under<BR>&gt; Linux as "Coral" with HP 715-64, <BR><BR>Is that really a Vis-EG HSC card?<BR>Can you post "dmesg" outpu
 t where STI describes the card?<BR><BR>grant<BR>_______________________________________________<BR>parisc-linux mailing
 list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</P></BLOCKQUOTE>
<DIV class=MsoNormal style="MARGIN-LEFT: 36pt; TEXT-ALIGN: center" align=center><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">
<HR align=center width="100%" SIZE=1>
</SPAN></FONT></DIV>
<P class=MsoNormal style="MARGIN-LEFT: 36pt"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">Do you Yahoo!?<BR><A href="http://pa.yahoo.com/*http:/rd.yahoo.com/evt=1207/*http:/promo.yahoo.com/sbc/">SBC Yahoo! DSL</A> - Now only $29.95 per month!</SPAN></FONT></P></DIV></BLOCKQUOTE><p><hr SIZE=1>
Do you Yahoo!?<br>
<a href="http://pa.yahoo.com/*http://rd.yahoo.com/evt=1207/*http://promo.yahoo.com/sbc/">SBC Yahoo! DSL</a> - Now only $29.95 per month!
--0-827210007-1055980438=:53760--


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John David Anglin schrieb:

>Until issues related to the canonicalization of function pointers
>and the alignment of stack locals are resolved, it is best to stick
>with debian gcc-3.0.4 for kernel building.
>
So I installed gcc-3.04 from Debian, did "make distclean", "make 
oldconfig" (selecting "PA7100LC") and booted...
And got the same loop again ;)

---------- SNIP---------------

     md: linear personality registered as nr 1
    Badness in local_bh_enable at at kernel/softirq.c:109
    Kernel addresses on the stack:

     [tirq.c:109
    <4>Kernel addresses on the stack:
    <4> [<10124edcc8>]  [<1010ea4c>]
    <4> [<1012503c>]  [<1028ac08>]  [<10124cc>]
    <4> [<1029a2a4>]  [<103ad4d4>]  [<10100284>]  [<10109c5ab8>] 
    [<101289a8>]  [<1028ac20>]
     [<1028b428>]  [<101070f28ac08>]  [<10124f10>]  [<1028adcc>]
     [<1029a2a4>]  [<103adc>]
    <4> [<1029a2a4>]  [<103ad4d4>]  [<10100284>]  [<10109c>] 
    [<103ad4d4>]  [<10100284>]  [<10109c5c>]


---------- SNAP---------------

Complete Bootlog and System.map is here: rscholz.bluehash.de/parisc .
Can I do something else to help finding the bug?

>  Loops of this kind can
>happen when lock structures are misaligned on PA 1.1 machines.
>
>Dave
>  
>

Rdiger



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Hi,

I do not yet tested 2.5 (or so faraway) but this message:
>     md: linear personality registered as nr 1
>    Badness in local_bh_enable at at kernel/softirq.c:109

seems to point out md support (ie raid support).
Do you already try to rebuild and re-try a kernel without this support?

Joel



---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be




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Hi,

>Do you already try to rebuild and re-try a kernel without this support?
>
>Joel
>  
>
this was also my thought, so recompiled kernel without md-support. I 
just rebooted the machine with the new kernel.... Same problem at 
another place:

----------------SNIP-----------

    Keyboard initialization sequence failled
    input: PS/2 keyboard port at 0xf0108000 (irq 69) found and attached
    input: PS/2 mouse port at 0xf0108100 (irq 69) found and attached
    HP SDC: HP SDC at 0xf0201000, IRQ 126 (NMI IRQ 125)
    HP SDC: New style SDC
    HP SDC: Revision: 1820-4784
    HP SDC: TI SN76494 beeper present
    HP SDC: OKI MSM-58321 BBRTC present
    HP SDC: Spunking the self test register to force PUP on next
    firmware reset.
    HP SDC MLC: Registering the System Domain Controller's HIL MLC.
    oprofile: using timer interrupt.
    Badness in local_bh_enable at kernel/s1012503c>]  [<101615dc>] 
    [<10124f10>]
     [<1028ab94>]  [<10494>]
    <4> [<10210468>]  [<10124b3c>]  [<1018abf8>]  [<10124cc8>]
    ftirq.c:109
    Kernel addresses on the stack:
     [<10124ed8>]  b1f0>]  [<101070f8>]  [<1028c0d8>]  [<1028c20c>]
     [<10128c68>]  [<1020dd68>]  [<101e493c>]
    <4> [<10210468>]  [<10124b3ck:
    <4> [<10124ed8>]  [<10105ab8>]  [<101289a8>]  [<1028a9d03b83c8>] 
    [<10399494>]  [<10100284>]
     [<10109c5c>]
    Badnes  [<101615dc>]  [<10124f10>]
    <4> [<1028ab94>]  [<103b83c8>]> [<101e0f5c>]  [<1012503c>] 
    [<101615dc>]  [<10124f10>]
     [1020dd48>]  [<10210498>]
    <4> [<10210468>]  [<10124b3c>] c5c>]
    <4>HP SDC: Transaction add failed: transaction already queuedl
    addresses on the stack:

-----------------SNAP----------------

The interesting thing could this line:  "oprofile: using timer 
interrupt." I think in using the timer interrupt lies the problem. 
Doesn't the md-stuff  use also the timer-interrupt to measure the 
throughput with various registers?

Rdiger



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From: adrian.criveanu@gmx.co.uk
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Subject: RE: [parisc-linux] Re: Visualize EG card on HP PARISC C360
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Xref: news.gmane.org gmane.linux.ports.parisc:18696

Hi!

I apologize for intruding upon you, but I have a C240 with a A4450A (GSC)
card and I couldn't make it work. I was even under the impression that only the
PCI version of it is supported (as I read in some e-mails). I used the 3.0
CDs. It would be highly appreciated if you could tell me what are the steps to
make it work under X, as now it only works for me if I connect to the C240
over a serial port.

I apologize again if you've already answered that before, but I couldn't
find much documentation out there to tell me exactly what to do. People talk
abot different kernel versions and things like that but a "how to" kind of
document would be very, very helpful and I think would make more people try Debian
on PA-RISC boxes. 

Thank you very much and apologie again for bothering you.

Best regards,

Adrian

> You will need one of the following cards:  A4977A (PCI), A4450A (GSC), or
> A4451A (GSC dual head).  Part numbers are listed below.  You will also
need
> an EVC to 15-pin converter for all of these cards and that part number is
> listed below also.  All of this info came from partsurfer.hp.com (no "www"
> in front of it).  There is a PCI EG card for sale on Ebay:  
>  
>
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3031053367&category=11221
>  
> Looks like Cypress Tech ( sales@cypress-tech.com) have some of the A4450A
> GSC cards, but I've never had any dealings with them.  Their prices on
Ebay
> seem high though.   Good luck.
>  
> A4450-66501636.00VISUALIZE-EG graphic accelerator board - For 2D and 3D
> wireframe graphics - Includes color recovery (P/O A4450A) 
> 
> 
> A4451-665011644.00Dual VISUALIZE-EG graphic accelerator board - For 2D and
> 3D wireframe graphics - Includes color recovery (A4451A) 
>  
> 1253-063528.00Enhanced Video Connector (EVC) video adapter cable - EVC(M)
> to 15-pin(F) - 7.87in (0.2m) long - Used to connect EVC video output to
> 15-pin monitor 
>  
> A4977-66501VIZUALIZE-EG/PCI 
> 
> Zlatan Jukic <zlatan.jukic@fh-vorarlberg.ac.at> wrote:
> 
> Hello Derek and all,
> 
>  
> 
> Thank you for your assistance.  Thank you Grant, too!
> 
>  
> 
> You already tested this card (Vis EG HSC) on your HP-Visualize C360
> machine. The X-Windows system should be started in this case.  
> 
> Can you say me please, where can I find/order and buy this card?
> 
>  
> 
> Thank you very much,
> 
> Kind regards, Zlatan
> 
>  
> 
> -----Original Message-----
> From: Derek Engelhaupt [mailto:derekengelhaupt@rocketmail.com] 
> Sent: Mittwoch, 18. Juni 2003 18:00
> To: Grant Grundler; Jukic Zlatan
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Re: Visualize EG card on HP PARISC C360
> 
>  
> 
> Yes, there is an HSC EG card.  Used it in my C360 before I sold it.  The
> PCI version of the card has more memory on it though.
> 
> 
>  
> 
> 
> derek
> 
> Grant Grundler <grundler@parisc-linux.org> wrote:
> 
> 
> On Tue, Jun 17, 2003 at 04:17:02PM +0200, Zlatan Jukic wrote:
> > I could not start unfortunately the X-Windows system, because it is not
> > supported by Fx-4 video card.?!
> 
> correct
> 
> > My question is here: Must I insert another card (and which??), in order
> to
> > start X-Windows-system?
> 
> > According to Debian HPPA, the Visualize EG should correct to function. 
> 
> yes. *PCI* version of the card.
> Vis-EG HSC card might also work.
> 
> > This card is a 24-bit-video-card, which is recognized in the best way
> under
> > Linux as "Coral" with HP 715-64, 
> 
> Is that really a Vis-EG HSC card?
> Can you post "dmesg" output where STI describes the card?
> 
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> ---------------------------------
> 
> 
> Do you Yahoo!?
> SBC Yahoo! DSL - Now only $29.95 per month!
> 
> 
> 
> ---------------------------------
> Do you Yahoo!?
> SBC Yahoo! DSL - Now only $29.95 per month!

-- 
+++ GMX - Mail, Messaging & more  http://www.gmx.net +++
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Hi,

> >Do you already try to rebuild and re-try a kernel without this support?
> >
> this was also my thought, so recompiled kernel without md-support. I 
> just rebooted the machine with the new kernel.... Same problem at 
> another place:

Sorry.

My best idea now is try a TOC (I presume that such a special swicth exist
on 715 model) (may be first cleanup PIMinfo with "ser clearpim" at bootprompt
before booting the kernel). Then during the 'bad loop' puch the TOC button
and at the bootprompt again collect (with minicom for instance) piminfo ("ser
pim") and try to submit it to analyse to 'dump_analyser.sh' (you can grabbe
it with a.c into cvs build-tools dir).
And report its result to this ml.

Hope this will help,
    Joel

PS: Edit dump_analyser.sh to change DUMPTYPE to TOC (default is kernel).
btw, I am impatient that hp release its p4 tools :-)


---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be




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On Thu, Jun 19, 2003 at 05:59:56AM +0200, Rdiger Scholz wrote:
> John David Anglin schrieb:
> 
> >Until issues related to the canonicalization of function pointers
> >and the alignment of stack locals are resolved, it is best to stick
> >with debian gcc-3.0.4 for kernel building.
> >
> So I installed gcc-3.04 from Debian, did "make distclean", "make 
> oldconfig" (selecting "PA7100LC") and booted...
> And got the same loop again ;)
> 
> ---------- SNIP---------------
> 
>     md: linear personality registered as nr 1
>    Badness in local_bh_enable at at kernel/softirq.c:109
>    Kernel addresses on the stack:
> 
>     [tirq.c:109
>    <4>Kernel addresses on the stack:
>    <4> [<10124edcc8>]  [<1010ea4c>]
>    <4> [<1012503c>]  [<1028ac08>]  [<10124cc>]
>    <4> [<1029a2a4>]  [<103ad4d4>]  [<10100284>]  [<10109c5ab8>] 
>    [<101289a8>]  [<1028ac20>]
>     [<1028b428>]  [<101070f28ac08>]  [<10124f10>]  [<1028adcc>]
>     [<1029a2a4>]  [<103adc>]
>    <4> [<1029a2a4>]  [<103ad4d4>]  [<10100284>]  [<10109c>] 
>    [<103ad4d4>]  [<10100284>]  [<10109c5c>]

So... what's going on here is that someone's enabling softirqs with hard
interrupts disabled.  This is not a smart thing to do.  Unfortunately,
something is messing up the stack backtrace, so it's hard tosee what's
going on.  Could you turn on CONFIG_KALLSYMS so the kernel prints out
its symbols?  The messages may still be corrupt, but we should have more
information to help us figure out what's going on.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Thu, 2003-06-19 at 06:40, Matthew Wilcox wrote:
> So... what's going on here is that someone's enabling softirqs with hard
> interrupts disabled.  This is not a smart thing to do.  Unfortunately,
> something is messing up the stack backtrace, so it's hard tosee what's
> going on.  Could you turn on CONFIG_KALLSYMS so the kernel prints out
> its symbols?  The messages may still be corrupt, but we should have more
> information to help us figure out what's going on.

This was a known problem in the HIL keyboard/mouse drivers around
2.5.70.  I think Helge already submitted a fix for this, could you try a
later version of the parisc kernel?

Thanks,

James




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Hi Dave,
>
>> It is well a stub table pb?

> No, this is a gcc pb.  Please proceed with a PR.  I can see the
> problem.  There isn't support for long floating-point branches
> in the machine definition :(
>

I am on going to prepare (btw would that I make you or p-l ml list in CC
of the PR?)

> I would suggest that the code being generated for this fuction
> isn't going to be very good.  Whenever at function
> exceeds 240KB in size, then GCC needs to generate long branches
> for function calls and some internal branches.  These sequences
> are much longer and less efficient.  You can tweak the parameter
> of the GCC's inlining model and probably reduce the size of
> the generated code.  The parameters are settable from the
> command line and are documented in the manual, etc.

hmm I found well severall cmd line parameter concerning inline stuff and
I was first tempted to test
-finline-limit=225000 (doesn't help)
-finline-limit=120000 (doesn't help more)
too bad :-(

and no more help with -fno-implicit-templates and/or -fno-implicit-inline-templates.

The only help is -fno-default-inline (i suppose that -fno-inline also) but
seems to me a bit like -O1.

Thanks again,
    Joel


---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be




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From: Jesse Dougherty <jesse@cypress-tech.com>
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Subject: Re: [parisc-linux] Re: Visualize EG card on HP PARISC C360
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Hi Derek, thanks for the plug. We do have the A4977A and A4450A graphics
cards for $125.00 each, the converter is $25.00.

Thanks
Jesse
Cypress Technology Inc
727-557-0911

Derek Engelhaupt wrote:

> You will need one of the following cards:  A4977A (PCI), A4450A (GSC),
> or A4451A (GSC dual head).  Part numbers are listed below.  You will
> also need an EVC to 15-pin converter for all of these cards and that
> part number is listed below also.  All of this info came from
> partsurfer.hp.com (no "www" in front of it).  There is a PCI EG card
> for sale on Ebay:
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3031053367&category=11221
> Looks like Cypress Tech ( sales@cypress-tech.com) have some of the
> A4450A GSC cards, but I've never had any dealings with them.  Their
> prices on Ebay seem high though.   Good luck.
>

  A4450-66501  636.00
                      VISUALIZE-EG graphic accelerator board - For 2D
                      and 3D wireframe graphics - Includes color
                      recovery (P/O A4450A)
>

  A4451-66501  1644.00
                       Dual VISUALIZE-EG graphic accelerator board -
                       For 2D and 3D wireframe graphics - Includes
                       color recovery (A4451A)
>

  1253-0635  28.00
                   Enhanced Video Connector (EVC) video adapter cable -
                   EVC(M) to 15-pin(F) - 7.87in (0.2m) long - Used to
                   connect EVC video output to 15-pin monitor
>

  A4977-66501
               VIZUALIZE-EG/PCI
>
> Zlatan Jukic <zlatan.jukic@fh-vorarlberg.ac.at> wrote:
>
>      Hello Derek and all,
>
>      Thank you for your assistance.  Thank you Grant, too!
>
>      You already tested this card (Vis EG HSC) on your
>      HP-Visualize C360 machine. The X-Windows system should be
>      started in this case.
>
>      Can you say me please, where can I find/order and buy this
>      card?
>
>      Thank you very much,
>
>      Kind regards, Zlatan
>
>      -----Original Message-----
>      From: Derek Engelhaupt
>      [mailto:derekengelhaupt@rocketmail.com]
>      Sent: Mittwoch, 18. Juni 2003 18:00
>      To: Grant Grundler; Jukic Zlatan
>      Cc: parisc-linux@lists.parisc-linux.org
>      Subject: Re: [parisc-linux] Re: Visualize EG card on HP
>      PARISC C360
>
>      Yes, there is an HSC EG card.  Used it in my C360 before I
>      sold it.  The PCI version of the card has more memory on it
>      though.
>      derek
>      Grant Grundler <grundler@parisc-linux.org> wrote:
>
>           On Tue, Jun 17, 2003 at 04:17:02PM +0200, Zlatan
>           Jukic wrote:
>
>
>           > I could not start unfortunately the X-Windows
>           system, because it is not
>           > supported by Fx-4 video card.?!
>
>           correct
>
>           > My question is here: Must I insert another card
>           (and which??), in order to
>           > start X-Windows-system?
>
>           > According to Debian HPPA, the Visualize EG
>           should correct to function.
>
>           yes. *PCI* version of the card.
>           Vis-EG HSC card might also work.
>
>           > This card is a 24-bit-video-card, which is
>           recognized in the best way under
>           > Linux as "Coral" with HP 715-64,
>
>           Is that really a Vis-EG HSC card?
>           Can you post "dmesg" output where STI describes
>           the card?
>
>           grant
>           _______________________________________________
>           parisc-linux mailing list
>           parisc-linux@lists.parisc-linux.org
>           http://lists.parisc-linux.org/mailm
>           n/listinfo/parisc-linux
>
>      -------------------------------------------------------------
>      Do you Yahoo!?
>
>
>      SBC Yahoo! DSL - Now only $29.95 per month!
>
> -----------------------------------------------------------------------
> Do you Yahoo!?
> SBC Yahoo! DSL - Now only $29.95 per month!

--------------D8D0F6EECBDB793092F134AA
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit

<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
Hi Derek, thanks for the plug. We do have the A4977A and A4450A graphics
cards for $125.00 each, the converter is $25.00.
<p>Thanks
<br>Jesse
<br>Cypress Technology Inc
<br>727-557-0911
<p>Derek Engelhaupt wrote:
<blockquote TYPE=CITE>You will need one of the following cards:&nbsp; A4977A
(PCI), A4450A (GSC), or A4451A (GSC dual head).&nbsp; Part numbers are
listed below.&nbsp; You will also need an EVC to 15-pin converter for all
of these cards and that part number is listed below also.&nbsp; All of
this info came from partsurfer.hp.com (no "www" in front of it).&nbsp;
There is a PCI EG card for sale on Ebay: <a href="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3031053367&category=11221">http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;item=3031053367&amp;category=11221</a>
Looks like Cypress Tech (<b> <a href="mailto:sales@cypress-tech.com">sales@cypress-tech.com</a></b>)
have some of the A4450A GSC cards, but I've never had any dealings with
them.&nbsp; Their prices on Ebay seem high though.&nbsp;&nbsp; Good luck.
<table BORDER CELLSPACING=0 CELLPADDING=4 VALIGN="top" >
<caption><TBODY>
<br></TBODY></caption>

<tr VALIGN=TOP BGCOLOR="#CCCCCC">
<td><nobr>A4450-66501</nobr></td>

<td ALIGN=RIGHT><nobr>636.00</nobr></td>

<td>
<table BORDER=0 CELLSPACING=0 CELLPADDING=0 >
<caption><TBODY>
<br></TBODY></caption>

<tr>
<td>VISUALIZE-EG graphic accelerator board - For 2D and 3D wireframe graphics
- Includes color recovery (P/O A4450A)&nbsp;</td>
</tr>
</table>
</td>
</tr>
</table>

<table BORDER CELLSPACING=0 CELLPADDING=4 VALIGN="top" >
<caption><TBODY>
<br></TBODY></caption>

<tr VALIGN=TOP BGCOLOR="#CCCCCC">
<td><nobr>A4451-66501</nobr></td>

<td ALIGN=RIGHT><nobr>1644.00</nobr></td>

<td>
<table BORDER=0 CELLSPACING=0 CELLPADDING=0 >
<caption><TBODY>
<br></TBODY></caption>

<tr>
<td>Dual VISUALIZE-EG graphic accelerator board - For 2D and 3D wireframe
graphics - Includes color recovery (A4451A)&nbsp;</td>
</tr>
</table>
</td>
</tr>
</table>

<table BORDER CELLSPACING=0 CELLPADDING=4 VALIGN="top" >
<caption><TBODY>
<br></TBODY></caption>

<tr VALIGN=TOP BGCOLOR="#E6E6E6">
<td><nobr>1253-0635</nobr></td>

<td ALIGN=RIGHT><nobr>28.00</nobr></td>

<td>
<table BORDER=0 CELLSPACING=0 CELLPADDING=0 >
<caption><TBODY>
<br></TBODY></caption>

<tr>
<td>Enhanced Video Connector (EVC) video adapter cable - EVC(M) to 15-pin(F)
- 7.87in (0.2m) long - Used to connect EVC video output to 15-pin monitor&nbsp;</td>
</tr>
</table>
</td>
</tr>
</table>

<table BORDER CELLSPACING=0 CELLPADDING=4 VALIGN="top" >
<caption><TBODY>
<br></TBODY></caption>

<tr VALIGN=TOP BGCOLOR="#CCCCCC">
<td><nobr>A4977-66501</nobr></td>

<td>
<table BORDER=0 CELLSPACING=0 CELLPADDING=0 >
<caption><TBODY>
<br></TBODY></caption>

<tr>
<td>VIZUALIZE-EG/PCI&nbsp;</td>
</tr>
</table>
</td>
</tr>
</table>
<!--END OF OUTPUT FROM showpartlist-->
<br><b><i>Zlatan Jukic &lt;zlatan.jukic@fh-vorarlberg.ac.at></i></b> wrote:
<blockquote style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"><style>
<!--
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</style>

<div class=Section1>
<div class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><font face="Arial"><font color="#000080"><font size=-1>Hello
Derek and all,</font></font></font></span></div>

<div class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></span></div>


<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><font face="Arial"><font color="#000080"><font size=-1>Thank
you for your assistance.&nbsp; Thank you Grant, too!</font></font></font></span>

<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></span>

<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><font face="Arial"><font color="#000080"><font size=-1>You
already tested this card (Vis EG HSC) on your HP-Visualize C360 machine.
The X-Windows system should be started in this case.&nbsp;</font></font></font></span>

<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><font face="Arial"><font color="#000080"><font size=-1>Can
you say me please, where can I find/order and buy this card?</font></font></font></span>

<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></span>

<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><font face="Arial"><font color="#000080"><font size=-1>Thank
you very much,</font></font></font></span>

<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><font face="Arial"><font color="#000080"><font size=-1>Kind
regards, Zlatan</font></font></font></span>

<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></span>

<p class="MsoNormal" style="MARGIN-LEFT: 36pt"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><font face="Tahoma"><font size=-1>-----Original
Message-----</font></font>
<br><span style="FONT-WEIGHT: bold"><font face="Tahoma"><font size=-1><b>From:</span></b>
Derek Engelhaupt [<A HREF="mailto:derekengelhaupt@rocketmail.com">mailto:derekengelhaupt@rocketmail.com</A>]</font></font>
<br><span style="FONT-WEIGHT: bold"><font face="Tahoma"><font size=-1><b>Sent:</span></b>
Mittwoch, 18. Juni 2003 18:00</font></font>
<br><span style="FONT-WEIGHT: bold"><font face="Tahoma"><font size=-1><b>To:</span></b>
Grant Grundler; Jukic Zlatan</font></font>
<br><span style="FONT-WEIGHT: bold"><font face="Tahoma"><font size=-1><b>Cc:</span></b>
parisc-linux@lists.parisc-linux.org</font></font>
<br><span style="FONT-WEIGHT: bold"><font face="Tahoma"><font size=-1><b>Subject:</span></b>
Re: [parisc-linux] Re: Visualize EG card on HP PARISC C360</font></font></span>

<p class="MsoNormal" style="MARGIN-LEFT: 36pt"><span style="FONT-SIZE: 12pt"></span>
<div class="MsoNormal" style="MARGIN-LEFT: 36pt"><span style="FONT-SIZE: 12pt"><font face="Times New Roman"><font size=+0>Yes,
there is an HSC EG card.&nbsp; Used it in my C360 before I sold it.&nbsp;
The PCI version of the card has more memory on it though.</font></font></span></div>

<div class="MsoNormal" style="MARGIN-LEFT: 36pt"><span style="FONT-SIZE: 12pt"></span></div>

<div class="MsoNormal" style="MARGIN-LEFT: 36pt"><span style="FONT-SIZE: 12pt"><font face="Times New Roman"><font size=+0>derek</font></font></div>
<span style="FONT-WEIGHT: bold; FONT-STYLE: italic"><font face="Times New Roman"><font size=+0><b><i>Grant
Grundler &lt;grundler@parisc-linux.org></span></i></b> wrote:</font></font></span>
<blockquote style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; MARGIN-TOP: 5pt; PADDING-LEFT: 4pt; MARGIN-BOTTOM: 5pt; PADDING-BOTTOM: 0cm; MARGIN-LEFT: 3.75pt; BORDER-LEFT: #1010ff 1.5pt solid; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none">
<div class="MsoNormal" style="MARGIN-LEFT: 36pt"><span style="FONT-SIZE: 12pt"><font face="Times New Roman"><font size=+0>On&nbsp;</span></font></font>Tue,
Jun 17, 2003 at 04:17:02PM +0200, Zlatan Jukic wrote:</div>

<p><br>> I could not start unfortunately the X-Windows system, because
it is not
<br>> supported by Fx-4 video card.?!
<p>correct
<p>> My question is here: Must I insert another card (and which??), in
order to
<br>> start X-Windows-system?
<p>> According to Debian HPPA, the Visualize EG should correct to function.
<p>yes. *PCI* version of the card.
<br>Vis-EG HSC card might also work.
<p>> This card is a 24-bit-video-card, which is recognized in the best
way under
<br>> Linux as "Coral" with HP 715-64,
<p>Is that really a Vis-EG HSC card?
<br>Can you post "dmesg" output where STI describes the card?
<p>grant
<br>_______________________________________________
<br>parisc-linux mailing list
<br>parisc-linux@lists.parisc-linux.org
<br><A HREF="http://lists.parisc-linux.org/mailman/listinfo/parisc-linux">http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</A></blockquote>

<div class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-ALIGN: center">
<center><span style="FONT-SIZE: 12pt">
<hr align=center width="100%" SIZE=1></span></center>
</div>

<div class="MsoNormal" style="MARGIN-LEFT: 36pt"><span style="FONT-SIZE: 12pt"><font face="Times New Roman"><font size=+0>Do
you Yahoo!?</font></font></div>

<p><br><font face="Times New Roman"><font size=+0><a href="http://pa.yahoo.com/*http:/rd.yahoo.com/evt=1207/*http:/promo.yahoo.com/sbc/">SBC
Yahoo! DSL</a> - Now only $29.95 per month!</font></font></span></div>
</blockquote>

<hr SIZE=1>Do you Yahoo!?
<br><a href="http://pa.yahoo.com/*http://rd.yahoo.com/evt=1207/*http://promo.yahoo.com/sbc/">SBC
Yahoo! DSL</a> - Now only $29.95 per month!</blockquote>
</html>

--------------D8D0F6EECBDB793092F134AA--



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Hi Joel,

Putting me on the CC list of the PR would be appreciated.

> > I would suggest that the code being generated for this fuction
> > isn't going to be very good.  Whenever at function
> > exceeds 240KB in size, then GCC needs to generate long branches
> > for function calls and some internal branches.  These sequences
> > are much longer and less efficient.  You can tweak the parameter
> > of the GCC's inlining model and probably reduce the size of
> > the generated code.  The parameters are settable from the
> > command line and are documented in the manual, etc.
> 
> hmm I found well severall cmd line parameter concerning inline stuff and
> I was first tempted to test
> -finline-limit=225000 (doesn't help)
> -finline-limit=120000 (doesn't help more)
> too bad :-(

These are the options that provide detailed control for inlining:

  --param max-inline-insns-rtl=<value> The maximum number of instructions for the RTL inliner
  --param min-inline-insns=<value>     The number of instructions in a single functions still eligible to inlining after a lot recursive inlining
  --param max-inline-slope=<value>     The slope of the linear function throttling inlining after the recursive inlining limit has been reached is given by the negative reciprocal value of this parameter
  --param max-inline-insns=<value>     The maximum number of instructions by repeated inlining before gcc starts to throttle inlining
  --param max-inline-insns-auto=<value> The maximum number of instructions when automatically inlining
  --param max-inline-insns-single=<value> The maximum number of instructions in a single function eligible for inlining

The RTL is not used by C or C++ anymore.  Look in the GCC file params.def
for the defaults and discussion.  I think reducing PARAM_MAX_INLINE_INSNS
from its default of 600 to something in the range of 200-300, or less will
help.  You might also make the slope more aggressive.  I know that changes
are needed to build LyX (see <http://gcc.gnu.org/PR?10160>).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Xref: news.gmane.org gmane.linux.ports.parisc:18703

Hey Dave,

> Putting me on the CC list of the PR would be appreciated.

May be have you already recieved this:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11254


[...]
> These are the options that provide detailed control for inlining:
>
>   --param max-inline-insns-rtl=<value> The maximum number of instructions
for
> the RTL inliner
>   --param min-inline-insns=<value>     The number of instructions in a
single
> functions still eligible to inlining after a lot recursive inlining
>   --param max-inline-slope=<value>     The slope of the linear function

> throttling inlining after the recursive inlining limit has been reached
is 
> given by the negative reciprocal value of this parameter
>   --param max-inline-insns=<value>     The maximum number of instructions
by
>  repeated inlining before gcc starts to throttle inlining
>   --param max-inline-insns-auto=<value> The maximum number of instructions
>  when automatically inlining
>   --param max-inline-insns-single=<value> The maximum number of instructions
>  in a single function eligible for inlining

> The RTL is not used by C or C++ anymore.  Look in the GCC file params.def
> for the defaults and discussion.  I think reducing PARAM_MAX_INLINE_INSNS
> from its default of 600 to something in the range of 200-300, or less will
> help.  You might also make the slope more aggressive.  I know that changes
> are needed to build LyX (see <http://gcc/gnu.org/PR?10160>).

Ah, in fact I well read it also but do not figure out because of man comment:
"max-inline-insns
    If an function contains more than this many instructions, it
    will not be inlined.  This option is precisely equivalent to
    -finline-limit.
"

Anyway, I try 300, 200, 100 and stop at 50 without any more success :-(
(I can still try lower?)

Thanks again for all,
    Joel


---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be




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> Ah, in fact I well read it also but do not figure out because of man comment:
> "max-inline-insns
>     If an function contains more than this many instructions, it
>     will not be inlined.  This option is precisely equivalent to
>     -finline-limit.
> "
> 
> Anyway, I try 300, 200, 100 and stop at 50 without any more success :-(
> (I can still try lower?)

Actually, I see that the `val' from -finline-limit sets the parameters
as follows in 3.4:

      set_param_value ("max-inline-insns", val);
      set_param_value ("max-inline-insns-single", val/2);
      set_param_value ("max-inline-insns-auto", val/2);
      set_param_value ("max-inline-insns-rtl", val);
      if (val/4 < MIN_INLINE_INSNS)
	{
	  if (val/4 > 10)
	    set_param_value ("min-inline-insns", val/4);
	  else
	    set_param_value ("min-inline-insns", 10);
	}

You might also try -fno-default-inline and -fno-inline, but it's
looking as if inlining isn't the driving factor in the size of
the routine.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Hi,

back again with new results! Compiled Kernel with CONFIG_KALLSYMS and 
md-support. Here is a part from the boot-log:
---------SNIP

    md: linear personality registered as nr 1
    Badness in local_bh_enable at kernel/softirq.c:109
    Kernel addresses on the stack:
     [<10124ee8>] printk+0xf0/0x128
     [<10105adc>] dump_stack+0x10/0x1c
     [<101289b8>] .L886+0x0/0x50
     [<1028b3d0>] .L1082+0x8/0x18
     [<1028bdd4>] .L812+0x0/0x9c
     [<1012cdb8>] do_timer+0x68/0x118
     [<1028c9b0>] .L917+0x48/0x58
     [<1028cc0c>] hil_mlcs_process+0x28/0x4c
     [<10128c48>] .L919+0x10/0x24
     [<1012891c>] do_softirq+0x9c/0xf8
     [<1010a068>] intr_return+0x0/0x14
     [<10107268>] do_cpu_irq_mask+0x90/0xf0
     [<1020e7a0>] .L1836+0x18/0x38
     [<1010a068>] intr_return+0x0/0x14
     [<10210ef0>] serial8250_console_write+0xf0/0x158
     [<10210ec0>] serial8250_console_write+0xc0/0x158
     [<10124b4c>] __call_console_drivers+0x6c/0x98
     [<10124cd8>] call_console_drivers+0xf0/0x178
     [<1010ea4c>] .L632+0x0/0xac
     [<1012504c>] .L1637+0x0/0x2c
     [<1028b3d0>] .L1082+0x8/0x18
     [<10124f20>] .L1612+0x0/0x38
     [<1028b594>] .L1154+0x0/0x10
     [<1029aa6c>] register_md_personality+0xa0/0xa8
     [<103e14d4>] do_initcalls+0x64/0xe0
     [<10100284>] init+0x28/0x60
     [<10109c5c>] ret_from_kernel_thread+0x1c/0x24

    Badness in local_bh_enable at kernel/softirq.c:109
    Kernel addresses on the stack:
     [<10124ee8>] printk+0xf0/0x128
     [<10105adc>] dump_stack+0x10/0x1c
     [<101289b8>] .L886+0x0/0x50
     [<1028b3d0>] .L1082+0x8/0x18
     [<1028bbf0>] .L762+0x0/0x74
     [<1028ac48>] .L1018+0x0/0x3c
     [<1028cad8>] .L974+0x20/0xc4
     [<1028cc0c>] hil_mlcs_process+0x28/0x4c
     [<10128c48>] .L919+0x10/0x24
     [<1012891c>] do_softirq+0x9c/0xf8
     [<1020e7a0>] .L1836+0x18/0x38
     [<1010a260>] intr_do_softirq+0x8/0x10
     [<101e5248>] $$divU+0x100/0x120
     [<10210ec0>] serial8250_console_write+0xc0/0x158
     [<10124b4c>] __call_console_drivers+0x6c/0x98
     [<10124cd8>] call_console_drivers+0xf0/0x178
     [<1010ea4c>] .L632+0x0/0xac
     [<1012504c>] .L1637+0x0/0x2c
     [<1028b3d0>] .L1082+0x8/0x18
     [<10124f20>] .L1612+0x0/0x38
     [<1028b594>] .L1154+0x0/0x10
     [<1029aa6c>] register_md_personality+0xa0/0xa8
     [<103e14d4>] do_initcalls+0x64/0xe0
     [<10100284>] init+0x28/0x60
     [<10109c5c>] ret_from_kernel_thread+0x1c/0x24

----------SNAP

Later I will grap some piminfo on the loop, and run dump_analyser on it.
Anything else I can do?

Rdiger

Matthew Wilcox schrieb:

>So... what's going on here is that someone's enabling softirqs with hard
>interrupts disabled.  This is not a smart thing to do.  Unfortunately,
>something is messing up the stack backtrace, so it's hard tosee what's
>going on.  Could you turn on CONFIG_KALLSYMS so the kernel prints out
>its symbols?  The messages may still be corrupt, but we should have more
>information to help us figure out what's going on.
>  
>



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On Thu, Jun 19, 2003 at 08:49:45PM +0200, Rdiger Scholz wrote:
> Hi,
> 
> back again with new results! Compiled Kernel with CONFIG_KALLSYMS and 
> md-support. Here is a part from the boot-log:
> ---------SNIP
> 
>    md: linear personality registered as nr 1
>    Badness in local_bh_enable at kernel/softirq.c:109
>    Kernel addresses on the stack:
>     [<10124ee8>] printk+0xf0/0x128
>     [<10105adc>] dump_stack+0x10/0x1c
>     [<101289b8>] .L886+0x0/0x50
>     [<1028b3d0>] .L1082+0x8/0x18
>     [<1028bdd4>] .L812+0x0/0x9c
>     [<1012cdb8>] do_timer+0x68/0x118
>     [<1028c9b0>] .L917+0x48/0x58
>     [<1028cc0c>] hil_mlcs_process+0x28/0x4c

... we really need to get these .L symbols cleaned up; stop them entering
the System.map.  Any toolchain hackers interested in looking at this?

Anyway, the fault seems to be in the HIL drivers -- someone said Helge
was looking at this?  If you disable the HIL drivers, does it work?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Helge Deller <deller@gmx.de>
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On Thursday 19 June 2003 21:56, Matthew Wilcox wrote:
> Anyway, the fault seems to be in the HIL drivers -- someone said Helge
> was looking at this?  If you disable the HIL drivers, does it work?

The new HIL drivers are broken and will crash the machine at some point.
Using the old HIL drivers instead, or deactivating HIL completely should work for now, 
until I really get more time to look into the problem (which isn't easy to fix at all).

Helge


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Subject: Re: [parisc-linux] Re: g++ (3.3): ...Error: Field out of range
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Hello Dave,

> > Ah, in fact I well read it also but do not figure out because of man
comment:
> > "max-inline-insns
> >    If an function contains more than this many instructions, it
> >    will not be inlined.  This option is precisely equivalent to
> >    -finline limit.
> > "
> >
> > Anyway, I try 300, 200, 100 and stop at 50 without any more success :-(
> > (I can still try lower?)
>

Could it be different in 3.3? I try with 5 and no success but...

> Actually, I see that the `val' from -finline-limit sets the parameters
> as follows in 3.4:
>
>       set_param_value ("max-inline-insns", val);
>       set_param_value ("max-inline-insns-single", val/2);
>       set_param_value ("max-inline-insns-auto", val/2);
>       set_param_value ("max-inline-insns-rtl", val);
>       if (val/4 < MIN_INLINE_INSNS)
>	{
> 	  if (val/4 > 10)
>	    set param_value ("min-inline-insns", val/4);
> 	  else
> 	    set_param_value ("min-inline-insns", 10);
> 	}
>
> You might also try -fno-default-inline and -fno-inline, but it's
> looking as if inlining isn't the driving factor in the size of
> the routine.

Yes the inlining is one factor:

The first works (see <http://lists.parisc-linux.org/pipermail/parisc-linux/2003-June/020202.html>
;) and certainly the second too;

but also a better news:
(I definitely need to clean my glasses: in man default -finline-limit=600)

and it so works with -finline-limit= something between 350 (works) and 400
(failled). Now I am curious to see the differences between --param and this
-finline-limit (if i have some time)?

Thanks for all,
    Joel

ps: sorry to report so late but my wife was angry because test was too long

---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be




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Hello again Dave,

> > Ah, in fact I well read it also but do not figure out because of man
comment:
> > "max-inline-insns
> >    If an function contains more than this many instructions, it
> >    will not be inlined.  This option is precisely equival
>nt to
> >    -finline limit.
> > "
> >
> > Anyway, I try 300, 200, 100 and stop at 50 without any more success :-(
> > (I can still try lower?)
>

Could it be different in 3.3? I try with 5 and no success but...

> Actually, I see that the `v
>l' from -finline-limit sets the parameters
> as follows in 3.4:
>
>       set_param_value ("max-inline-insns", val);
>       set_param_value ("max-inline-insns-single", val/2);
>       set_param_value ("max-inline-insns-auto", val/2);
>       set
>param_value ("max-inline-insns-rtl", val);
>       if (val/4 < MIN_INLINE_INSNS)
>	{
> 	  if (val/4 > 10)
>	    set param_value ("min-inline-insns", val/4);
> 	  else
> 	    set_param_value ("min-inline-insns", 10);
> 	}
>
> You might also try
>-fno-default-inline and -fno-inline, but it's
> looking as if inlining isn't the driving factor in the size of
> the routine.

Yes the inlining is one factor:

The first works (see <http://lists.parisc-linux.org/pipermail/parisc-linux/2003-June/0
>0202.html>
;) and certainly the second too;

but also a better news:
(I definitely need to clean my glasses: in man default -finline-limit=600)

and it so works with -finline-limit= something between 350 (works) and 400
(failled). Now I am curio
>s to see the differences between --param and this
-finline-limit (if i have some time)?

===

Sorry to reply to myself but I continue my test and reading again gcc man
(well all gcc-3.0, -3.2 and -3.3 are installed on this box and I would also
have to prefer to read man -l /usr/share/man/man1/gcc-3.3.1.gz).

And also re-reading <http://gcc.gnu.org/PR?10160> 

--param max-inline-insns=180 ... 5 # :( it fails
but otc
--param max-inline-insns-single=180 # ;) it works also (even if compile time
is
long versus -finline-limit=300) 

So looks like very much PR=10160 excepted that here it is not only a performance
pb but also a failure of compilation.


Thanks for you understand,
    Joel

ps: sorry also for bad quoting (pb with isp webmail)


---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be




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From: "Zlatan Jukic" <zlatan.jukic@fh-vorarlberg.ac.at>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Re: Visualize EG card on HP PARISC C360
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Hello Jesse, Hi all,

=20

As said, I have a fx4-card, which unfortunately does not support the X
Windows system in my machine.=20

=20

I need, after the suggestion of Grant and Derek a "Visualize EG HSC =
*PCI*
card". =20

Derek used this card for its HP PA-RISC C360, because this card supports
X-Window-system.

=20

Before I decide I must know whether your "A4977A Visualize EG Graphics =
card"
is the same version of the card as the "Visualize EG HSC *PCI* ".=20

=20

Better said:  Which, of your cards, is "Visualize EG HSC *PCI* card" ?=20

=20

What means the abbreviation "HSC" ?

=20

Thanks for all your assistance,

Kind regards, Zlatan

=20

-----Original Message-----
From: Jesse Dougherty [mailto:jesse@cypress-tech.com]=20
Sent: Donnerstag, 19. Juni 2003 19:02
To: Derek Engelhaupt
Cc: Jukic Zlatan; parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Re: Visualize EG card on HP PARISC C360

=20

Hi Derek, thanks for the plug. We do have the A4977A and A4450A graphics
cards for $125.00 each, the converter is $25.00.=20

Thanks=20
Jesse=20
Cypress Technology Inc=20
727-557-0911=20

Derek Engelhaupt wrote:=20

You will need one of the following cards:  A4977A (PCI), A4450A (GSC), =
or
A4451A (GSC dual head).  Part numbers are listed below.  You will also =
need
an EVC to 15-pin converter for all of these cards and that part number =
is
listed below also.  All of this info came from partsurfer.hp.com (no =
"www"
in front of it).  There is a PCI EG card for sale on Ebay:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem
<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3D3031053367&category=
=3D1122
1> &item=3D3031053367&category=3D11221 Looks like Cypress Tech (
sales@cypress-tech.com) have some of the A4450A GSC cards, but I've =
never
had any dealings with them.  Their prices on Ebay seem high though.   =
Good
luck.=20


=20


A4450-66501

636.00


=20


VISUALIZE-EG graphic accelerator board - For 2D and 3D wireframe =
graphics -
Includes color recovery (P/O A4450A)=20

=20


=20


A4451-66501

1644.00


=20


Dual VISUALIZE-EG graphic accelerator board - For 2D and 3D wireframe
graphics - Includes color recovery (A4451A)=20

=20


=20


1253-0635

28.00


=20


Enhanced Video Connector (EVC) video adapter cable - EVC(M) to 15-pin(F) =
-
7.87in (0.2m) long - Used to connect EVC video output to 15-pin monitor=20

=20


=20


A4977-66501


=20


VIZUALIZE-EG/PCI=20


Zlatan Jukic <zlatan.jukic@fh-vorarlberg.ac.at> wrote:=20

Hello Derek and all,

Thank you for your assistance.  Thank you Grant, too!=20

You already tested this card (Vis EG HSC) on your HP-Visualize C360 =
machine.
The X-Windows system should be started in this case. =20

Can you say me please, where can I find/order and buy this card?=20

Thank you very much,=20

Kind regards, Zlatan=20

-----Original Message-----=20
From: Derek Engelhaupt [mailto:derekengelhaupt@rocketmail.com]=20
Sent: Mittwoch, 18. Juni 2003 18:00=20
To: Grant Grundler; Jukic Zlatan=20
Cc: parisc-linux@lists.parisc-linux.org=20
Subject: Re: [parisc-linux] Re: Visualize EG card on HP PARISC C360=20

Yes, there is an HSC EG card.  Used it in my C360 before I sold it.  The =
PCI
version of the card has more memory on it though.

derek

Grant Grundler <grundler@parisc-linux.org> wrote:=20

On Tue, Jun 17, 2003 at 04:17:02PM +0200, Zlatan Jukic wrote:


> I could not start unfortunately the X-Windows system, because it is =
not=20
> supported by Fx-4 video card.?!=20

correct=20

> My question is here: Must I insert another card (and which??), in =
order to

> start X-Windows-system?=20

> According to Debian HPPA, the Visualize EG should correct to function. =


yes. *PCI* version of the card.=20
Vis-EG HSC card might also work.=20

> This card is a 24-bit-video-card, which is recognized in the best way
under=20
> Linux as "Coral" with HP 715-64,=20

Is that really a Vis-EG HSC card?=20
Can you post "dmesg" output where STI describes the card?=20

grant=20
_______________________________________________=20
parisc-linux mailing list=20
parisc-linux@lists.parisc-linux.org=20
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


  _____ =20


Do you Yahoo!?


SBC
<http://pa.yahoo.com/*http:/rd.yahoo.com/evt=3D1207/*http:/promo.yahoo.co=
m/sbc
/>  Yahoo! DSL - Now only $29.95 per month!


  _____ =20


Do you Yahoo!?=20
SBC
<http://pa.yahoo.com/*http:/rd.yahoo.com/evt=3D1207/*http:/promo.yahoo.co=
m/sbc
/>  Yahoo! DSL - Now only $29.95 per month!


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	text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
	{color:blue;
	text-decoration:underline;}
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	{margin-right:0cm;
	margin-left:0cm;
	font-size:12.0pt;
	font-family:"Times New Roman";}
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	{font-family:Arial;
	color:navy;}
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	{font-family:Arial;
	color:navy;}
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	{size:595.3pt 841.9pt;
	margin:72.0pt 90.0pt 72.0pt 90.0pt;}
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	{page:Section1;}
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</head>

<body lang=3DEN-US link=3Dblue vlink=3Dblue>

<div class=3DSection1>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Hello Jesse, Hi =
all,</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>As said, I have a fx4-card, which
unfortunately does not support the X Windows system in my machine. =
</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>I need, after the suggestion of =
Grant and
Derek a </span></font><b><i><u><font size=3D2 face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;background:yellow;font-weight:bold;font-style:it=
alic'>&quot;Visualize
EG HSC *PCI* card</span></font></u></i></b><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>&quot;<font =
color=3Dnavy><span
style=3D'color:navy'>.&nbsp; </span></font></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Derek used this card for its =
</span></font><b><i><u><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;background:
yellow;font-weight:bold;font-style:italic'>HP PA-RISC =
C360</span></font></u></i></b><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>, because this card supports =
X-Window-system.</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Before I decide I must know whether =
your </span></font><b><u><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;font-weight:
bold'>&quot;A4977A Visualize EG Graphics =
card&quot;</span></font></u></b><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'> is the same version of the card as the =
</span></font><b><u><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;font-weight:
bold'>&quot;Visualize EG HSC *PCI* &quot;.</span></font></u></b><font =
size=3D2
color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'> </span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Better said:&nbsp; =
</span></font><b><i><u><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;background:
yellow;font-weight:bold;font-style:italic'>Which</span></font></u></i></b=
><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>, of your cards, is </span></font><b><i><u><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;background:yellow;font-weight=
:bold;
font-style:italic'>&quot;Visualize EG HSC *PCI* =
card</span></font></u></i></b><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'>&quot; ?<font
color=3Dnavy><span style=3D'color:navy'> =
</span></font></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>What means the abbreviation =
&quot;HSC&quot;
?</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Thanks for all your =
assistance,</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Kind regards, =
Zlatan</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> Jesse Dougherty
[mailto:jesse@cypress-tech.com] <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Donnerstag, 19. =
Juni 2003
19:02<br>
<b><span style=3D'font-weight:bold'>To:</span></b> Derek Engelhaupt<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> Jukic Zlatan;
parisc-linux@lists.parisc-linux.org<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> Re: =
[parisc-linux] Re:
Visualize EG card on HP PARISC C360</span></font></p>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>&nbsp;</span></font></p>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>Hi Derek, =
thanks for the
plug. We do have the A4977A and A4450A graphics cards for $125.00 each, =
the converter
is $25.00. </span></font></p>

<p style=3D'margin-left:36.0pt'><font size=3D3 face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'>Thanks <br>
Jesse <br>
</span></font>Cypress Technology Inc <br>
727-557-0911 </p>

<p style=3D'margin-left:36.0pt'><font size=3D3 face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'>Derek Engelhaupt wrote: </span></font></p>

<blockquote style=3D'margin-top:5.0pt;margin-bottom:5.0pt' TYPE=3DCITE>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>You will need =
one of the
following cards:&nbsp; A4977A (PCI), A4450A (GSC), or A4451A (GSC dual
head).&nbsp; Part numbers are listed below.&nbsp; You will also need an =
EVC to
15-pin converter for all of these cards and that part number is listed =
below
also.&nbsp; All of this info came from partsurfer.hp.com (no =
&quot;www&quot; in
front of it).&nbsp; There is a PCI EG card for sale on Ebay: <a
href=3D"http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;item=3D30310533=
67&amp;category=3D11221">http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&am=
p;item=3D3031053367&amp;category=3D11221</a>
Looks like Cypress Tech (<b><span style=3D'font-weight:bold'> <a
href=3D"mailto:sales@cypress-tech.com">sales@cypress-tech.com</a></span><=
/b>)
have some of the A4450A GSC cards, but I've never had any dealings with
them.&nbsp; Their prices on Ebay seem high though.&nbsp;&nbsp; Good =
luck. </span></font></p>

<table class=3DMsoNormalTable border=3D1 cellspacing=3D0 cellpadding=3D0 =
width=3D562
 style=3D'width:421.3pt;margin-left:36.0pt'>
 <tr>
  <td colspan=3D3 bgcolor=3D"#CCCCCC" =
style=3D'border:none;background:#CCCCCC;
  padding:3.0pt 3.0pt 3.0pt 3.0pt'>
  <p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
  face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>&nbsp;</span></font></p>
  </td>
 </tr>
 <tr>
  <td valign=3Dtop bgcolor=3D"#CCCCCC" =
style=3D'background:#CCCCCC;padding:3.0pt 3.0pt 3.0pt 3.0pt'>
  <p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span
  style=3D'font-size:12.0pt'>A4450-66501</span></font></p>
  </td>
  </nobr>
  <td valign=3Dtop bgcolor=3D"#CCCCCC" =
style=3D'background:#CCCCCC;padding:3.0pt 3.0pt 3.0pt 3.0pt'><nobr>
  <p class=3DMsoNormal align=3Dright style=3D'text-align:right'><font =
size=3D3
  face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>636.00</span></font></p>
  </nobr></td>
  <td valign=3Dtop bgcolor=3D"#CCCCCC" =
style=3D'background:#CCCCCC;padding:3.0pt 3.0pt 3.0pt 3.0pt'>
  <table class=3DMsoNormalTable border=3D0 cellspacing=3D0 =
cellpadding=3D0>
   <tr>
    <td style=3D'padding:0cm 0cm 0cm 0cm'>
    <p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><font size=3D3
    face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>&nbsp;</span></font></p>
    </td>
   </tr>
   <tr>
    <td style=3D'padding:0cm 0cm 0cm 0cm'>
    <p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span
    style=3D'font-size:12.0pt'>VISUALIZE-EG graphic accelerator board - =
For 2D
    and 3D wireframe graphics - Includes color recovery (P/O =
A4450A)&nbsp;</span></font></p>
    </td>
   </tr>
  </table>
  <p class=3DMsoNormal></p>
  </td>
 </tr>
</table>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;display:none'>&nbsp;</span></font></p>

<table class=3DMsoNormalTable border=3D1 cellspacing=3D0 cellpadding=3D0 =
width=3D562
 style=3D'width:421.3pt;margin-left:36.0pt'>
 <tr>
  <td colspan=3D3 bgcolor=3D"#CCCCCC" =
style=3D'border:none;background:#CCCCCC;
  padding:3.0pt 3.0pt 3.0pt 3.0pt'>
  <p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
  face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>&nbsp;</span></font></p>
  </td>
 </tr>
 <tr>
  <td valign=3Dtop bgcolor=3D"#CCCCCC" =
style=3D'background:#CCCCCC;padding:3.0pt 3.0pt 3.0pt 3.0pt'>
  <p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span
  style=3D'font-size:12.0pt'>A4451-66501</span></font></p>
  </td>
  </nobr>
  <td valign=3Dtop bgcolor=3D"#CCCCCC" =
style=3D'background:#CCCCCC;padding:3.0pt 3.0pt 3.0pt 3.0pt'><nobr>
  <p class=3DMsoNormal align=3Dright style=3D'text-align:right'><font =
size=3D3
  face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>1644.00</span></font></p>
  </nobr></td>
  <td valign=3Dtop bgcolor=3D"#CCCCCC" =
style=3D'background:#CCCCCC;padding:3.0pt 3.0pt 3.0pt 3.0pt'>
  <table class=3DMsoNormalTable border=3D0 cellspacing=3D0 =
cellpadding=3D0>
   <tr>
    <td style=3D'padding:0cm 0cm 0cm 0cm'>
    <p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><font size=3D3
    face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>&nbsp;</span></font></p>
    </td>
   </tr>
   <tr>
    <td style=3D'padding:0cm 0cm 0cm 0cm'>
    <p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span
    style=3D'font-size:12.0pt'>Dual VISUALIZE-EG graphic accelerator =
board - For
    2D and 3D wireframe graphics - Includes color recovery =
(A4451A)&nbsp;</span></font></p>
    </td>
   </tr>
  </table>
  <p class=3DMsoNormal></p>
  </td>
 </tr>
</table>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;display:none'>&nbsp;</span></font></p>

<table class=3DMsoNormalTable border=3D1 cellspacing=3D0 cellpadding=3D0 =
width=3D562
 style=3D'width:421.3pt;margin-left:36.0pt'>
 <tr>
  <td colspan=3D3 bgcolor=3D"#E6E6E6" =
style=3D'border:none;background:#E6E6E6;
  padding:3.0pt 3.0pt 3.0pt 3.0pt'>
  <p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
  face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>&nbsp;</span></font></p>
  </td>
 </tr>
 <tr>
  <td valign=3Dtop bgcolor=3D"#E6E6E6" =
style=3D'background:#E6E6E6;padding:3.0pt 3.0pt 3.0pt 3.0pt'>
  <p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span
  style=3D'font-size:12.0pt'>1253-0635</span></font></p>
  </td>
  </nobr>
  <td valign=3Dtop bgcolor=3D"#E6E6E6" =
style=3D'background:#E6E6E6;padding:3.0pt 3.0pt 3.0pt 3.0pt'><nobr>
  <p class=3DMsoNormal align=3Dright style=3D'text-align:right'><font =
size=3D3
  face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>28.00</span></font></p>
  </nobr></td>
  <td valign=3Dtop bgcolor=3D"#E6E6E6" =
style=3D'background:#E6E6E6;padding:3.0pt 3.0pt 3.0pt 3.0pt'>
  <table class=3DMsoNormalTable border=3D0 cellspacing=3D0 =
cellpadding=3D0>
   <tr>
    <td style=3D'padding:0cm 0cm 0cm 0cm'>
    <p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><font size=3D3
    face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>&nbsp;</span></font></p>
    </td>
   </tr>
   <tr>
    <td style=3D'padding:0cm 0cm 0cm 0cm'>
    <p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span
    style=3D'font-size:12.0pt'>Enhanced Video Connector (EVC) video =
adapter cable
    - EVC(M) to 15-pin(F) - 7.87in (0.2m) long - Used to connect EVC =
video
    output to 15-pin monitor&nbsp;</span></font></p>
    </td>
   </tr>
  </table>
  <p class=3DMsoNormal></p>
  </td>
 </tr>
</table>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;display:none'>&nbsp;</span></font></p>

<table class=3DMsoNormalTable border=3D1 cellspacing=3D0 cellpadding=3D0
 style=3D'margin-left:36.0pt'>
 <tr>
  <td colspan=3D2 bgcolor=3D"#CCCCCC" =
style=3D'border:none;background:#CCCCCC;
  padding:3.0pt 3.0pt 3.0pt 3.0pt'>
  <p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
  face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>&nbsp;</span></font></p>
  </td>
 </tr>
 <tr>
  <td valign=3Dtop bgcolor=3D"#CCCCCC" =
style=3D'background:#CCCCCC;padding:3.0pt 3.0pt 3.0pt 3.0pt'>
  <p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span
  style=3D'font-size:12.0pt'>A4977-66501</span></font></p>
  </td>
  </nobr>
  <td valign=3Dtop bgcolor=3D"#CCCCCC" =
style=3D'background:#CCCCCC;padding:3.0pt 3.0pt 3.0pt 3.0pt'>
  <table class=3DMsoNormalTable border=3D0 cellspacing=3D0 =
cellpadding=3D0>
   <tr>
    <td style=3D'padding:0cm 0cm 0cm 0cm'>
    <p class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><font size=3D3
    face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>&nbsp;</span></font></p>
    </td>
   </tr>
   <tr>
    <td style=3D'padding:0cm 0cm 0cm 0cm'>
    <p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span
    style=3D'font-size:12.0pt'>VIZUALIZE-EG/PCI&nbsp;</span></font></p>
    </td>
   </tr>
  </table>
  <p class=3DMsoNormal></p>
  </td>
 </tr>
</table>

<!--END OF OUTPUT FROM showpartlist-->

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'><br>
<b><i><span style=3D'font-weight:bold;font-style:italic'>Zlatan Jukic
&lt;zlatan.jukic@fh-vorarlberg.ac.at&gt;</span></i></b> wrote: =
</span></font></p>

<div>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Hello
Derek and all,</span></font></p>

</div>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Thank
you for your assistance.&nbsp; Thank you Grant, too!</span></font> </p>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>You
already tested this card (Vis EG HSC) on your HP-Visualize C360 machine. =
The
X-Windows system should be started in this case.&nbsp;</span></font> =
</p>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Can you
say me please, where can I find/order and buy this card?</span></font> =
</p>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Thank
you very much,</span></font> </p>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Kind
regards, Zlatan</span></font> </p>

<p class=3DMsoNormal style=3D'margin-left:72.0pt'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original Message----- =
<br>
<b><span style=3D'font-weight:bold'>From:</span></b> Derek Engelhaupt =
[<a
href=3D"mailto:derekengelhaupt@rocketmail.com">mailto:derekengelhaupt@roc=
ketmail.com</a>]
<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Mittwoch, 18. Juni =
2003 </span></font><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>18:00</span></font><font
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'> <br>
<b><span style=3D'font-weight:bold'>To:</span></b> Grant Grundler; Jukic =
Zlatan <br>
<b><span style=3D'font-weight:bold'>Cc:</span></b>
parisc-linux@lists.parisc-linux.org <br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> Re: =
[parisc-linux] Re:
Visualize EG card on HP PARISC C360</span></font> </p>

<div style=3D'margin-left:36.0pt'>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>Yes, there is =
an HSC EG
card.&nbsp; Used it in my C360 before I sold it.&nbsp; The PCI version =
of the
card has more memory on it though.</span></font></p>

</div>

<div style=3D'margin-left:36.0pt'>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>derek</span></font></p>

</div>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><b><i><font size=3D3
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;font-weight:bold;
font-style:italic'>Grant Grundler =
&lt;grundler@parisc-linux.org&gt;</span></font></i></b>
wrote: </p>

<div style=3D'margin-left:36.0pt'>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt'>On&nbsp;</span></font>Tue, Jun 17, 2003 at =
04:17:02PM +0200, Zlatan Jukic wrote:</p>

</div>

<p style=3D'margin-left:36.0pt'><font size=3D3 face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'><br>
&gt; I could not start unfortunately the X-Windows system, because it is =
not <br>
&gt; supported by Fx-4 video card.?! </span></font></p>

<p style=3D'margin-left:36.0pt'><font size=3D3 face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'>correct </span></font></p>

<p style=3D'margin-left:36.0pt'><font size=3D3 face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'>&gt; My question is here: Must I insert =
another card
(and which??), in order to <br>
&gt; start X-Windows-system? </span></font></p>

<p style=3D'margin-left:36.0pt'><font size=3D3 face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'>&gt; According to Debian HPPA, the Visualize =
EG should
correct to function. </span></font></p>

<p style=3D'margin-left:36.0pt'><font size=3D3 face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'>yes. *PCI* version of the card. <br>
Vis-EG HSC card might also work. </span></font></p>

<p style=3D'margin-left:36.0pt'><font size=3D3 face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'>&gt; This card is a 24-bit-video-card, which =
is
recognized in the best way under <br>
&gt; Linux as &quot;Coral&quot; with HP 715-64, </span></font></p>

<p style=3D'margin-left:36.0pt'><font size=3D3 face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'>Is that really a Vis-EG HSC card? <br>
Can you post &quot;dmesg&quot; output where STI describes the card? =
</span></font></p>

<p style=3D'margin-left:36.0pt'><font size=3D3 face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'>grant <br>
_______________________________________________ <br>
parisc-linux mailing list <br>
parisc-linux@lists.parisc-linux.org <br>
<a =
href=3D"http://lists.parisc-linux.org/mailman/listinfo/parisc-linux">http=
://lists.parisc-linux.org/mailman/listinfo/parisc-linux</a></span></font>=
</p>

<div style=3D'margin-left:36.0pt'>

<div class=3DMsoNormal align=3Dcenter =
style=3D'margin-left:36.0pt;text-align:center'><font
size=3D3 face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D1 width=3D"100%" align=3Dcenter>

</span></font></div>

</div>

<div style=3D'margin-left:36.0pt'>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>Do you =
Yahoo!?</span></font></p>

</div>

<p style=3D'margin-left:36.0pt'><font size=3D3 face=3D"Times New =
Roman"><span
style=3D'font-size:12.0pt'><br>
<a
href=3D"http://pa.yahoo.com/*http:/rd.yahoo.com/evt=3D1207/*http:/promo.y=
ahoo.com/sbc/">SBC
Yahoo! DSL</a> - Now only $29.95 per month!</span></font></p>

<div class=3DMsoNormal align=3Dcenter =
style=3D'margin-left:36.0pt;text-align:center'><font
size=3D3 face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D1 width=3D"100%" align=3Dcenter>

</span></font></div>

<p class=3DMsoNormal style=3D'margin-left:36.0pt'><font size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>Do you Yahoo!? =
<br>
<a
href=3D"http://pa.yahoo.com/*http:/rd.yahoo.com/evt=3D1207/*http:/promo.y=
ahoo.com/sbc/">SBC
Yahoo! DSL</a> - Now only $29.95 per month!</span></font></p>

</blockquote>

</div>

</body>

</html>

------=_NextPart_000_0000_01C3371F.70A91970--



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Subject: Re: [parisc-linux] Re: Visualize EG card on HP PARISC C360
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On Fri, Jun 20, 2003 at 11:30:11AM +0200, Zlatan Jukic wrote:
> I need, after the suggestion of Grant and Derek a "Visualize EG HSC *PCI*
> card".  

Nono.  You need _either_ a VisEG HSC card _or_ a VisEG PCI card.

> What means the abbreviation "HSC" ?

Highspeed System Connect (iirc).  It's an HP proprietary bus.  You either
want an HSC card or a PCI card.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] KGDB Port first patch release
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Hi fellow pa-ckers!

As some of you may know, Laurent Canet and myself were working on 
porting KGDB to the parisc architecture.

Well, the good news is that we did it!
The bad new is that it doesn't work for every possible configuration ;)

As you can see on the webpage http://pateam.esiee.fr/kgdb.html we 
currently only support 32bit capable GSC boxes featuring Lasi/Dino 
serial port (which is quite a lot of machines already ;)

TBH, we have currently only tested it on B132 using various kernel 
configuration.

It's worth mentioning SMP isn't supported atm (some locks to be fixed) 
as well as step-by-step execution (we are working on it too). It's 
sorta a "beta" version of the patch, but it works pretty well as far as 
we could check.

We lack material to test our stuff, so any feedback would be greatly 
appreciated!

Next steps planned are:
- fix SMP
- fix step-by-step
- make it work on SuperIO boxes
- port to 2.5

The patch also adds a "Compile kernel with frame pointer option" and 
takes care of removing lifimage (created by "make palo") on "make 
clean".
Maybe we want one or both changes to be committed upstream, any thought 
?

HTH,


Thibaut VARENE
Laurent Canet
The PA/Linux ESIEE Team
http://pateam.esiee.fr/




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On Fri, Jun 20, 2003 at 01:43:05PM +0200, Thibaut VARNE wrote:
> The patch also adds a "Compile kernel with frame pointer option" and 
> takes care of removing lifimage (created by "make palo") on "make 
> clean".
> Maybe we want one or both changes to be committed upstream, any thought 
> ?

Those two sound generally useful; send patches!

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Le vendredi, 20 jun 2003, =E0 14:14 Europe/Paris, Matthew Wilcox a =E9crit=
 :

> On Fri, Jun 20, 2003 at 01:43:05PM +0200, Thibaut VAR=C8NE wrote:
>> The patch also adds a "Compile kernel with frame pointer option" and
>> takes care of removing lifimage (created by "make palo") on "make
>> clean".
>> Maybe we want one or both changes to be committed upstream, any=20
>> thought
>> ?
>
> Those two sound generally useful; send patches!
>
committed




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Subject: RE: [parisc-linux] Re: Visualize EG card on HP PARISC C360
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Hello Willy & Matthew,

Thanks.  It's OK! Derek has said that PCI version has more memory.

What could you recommend me?  I need a safe start of the X Windows-system!

Thanks for your understanding,
and for all your assistance.

Kind regards, Zlatan


-----Original Message-----
From: willy@www.linux.org.uk [mailto:willy@www.linux.org.uk] On Behalf Of
Matthew Wilcox
Sent: Freitag, 20. Juni 2003 13:28
To: Jukic Zlatan
Cc: 'Jesse Dougherty'; 'Derek Engelhaupt'; grundler@parisc-linux.org;
parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Re: Visualize EG card on HP PARISC C360

On Fri, Jun 20, 2003 at 11:30:11AM +0200, Zlatan Jukic wrote:
> I need, after the suggestion of Grant and Derek a "Visualize EG HSC *PCI*
> card".  

Nono.  You need _either_ a VisEG HSC card _or_ a VisEG PCI card.

> What means the abbreviation "HSC" ?

Highspeed System Connect (iirc).  It's an HP proprietary bus.  You either
want an HSC card or a PCI card.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead
bodies.
Do you think I want to have an academic debate on this subject?" -- Robert
Fisk



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On Fri, Jun 20, 2003 at 02:39:56PM +0200, Zlatan Jukic wrote:
> What could you recommend me?  I need a safe start of the X Windows-system!

Get the Visual-EG PCI card. It definitely works.
Derek posted the part numbers before.
See http://lists.parisc-linux.org/ for the mail archive.

grant


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Subject: [parisc-linux] Wierd IIR value in expect crash
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Today, expect dumped core during the running of the GCC testsuite.  The
debug listing is as follows:

Jun 20 10:03:41 gsyprf11 kernel: expect (pid 27377): Illegal instruction (code 8)
Jun 20 10:03:41 gsyprf11 kernel: 
Jun 20 10:03:41 gsyprf11 kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Jun 20 10:03:41 gsyprf11 kernel: PSW: 00000000000001101111111100001111 Not tainted
Jun 20 10:03:41 gsyprf11 kernel: r00-03  0000000000000000 0000000040065120 000000004003bb47 0000000000000066
Jun 20 10:03:41 gsyprf11 kernel: r04-07  0000000000000066 000000000023a050 0000000040066120 000000000000012c
Jun 20 10:03:41 gsyprf11 kernel: r08-11  00000000000225d0 000000000000012c 0000000040067a0c 0000000040067a0c
Jun 20 10:03:41 gsyprf11 kernel: r12-15  0000000000211890 0000000000000001 0000000040050ba8 000000000000012c
Jun 20 10:03:41 gsyprf11 kernel: r16-19  00000000000225d0 0000000000000000 0000000000000001 0000000040066120
Jun 20 10:03:41 gsyprf11 kernel: r20-23  0000000000000000 0000000040041f14 000000004004caa8 0000000000000000
Jun 20 10:03:41 gsyprf11 kernel: r24-27  0000000000000000 00000000002ce740 000000000023a050 0000000000020e0c
Jun 20 10:03:41 gsyprf11 kernel: r28-31  00000000002ce740 0000000000000000 00000000faf06880 00000000400c5e03
Jun 20 10:03:41 gsyprf11 kernel: sr0-3   0000000000000300 0000000000000300 0000000000000000 0000000000000300
Jun 20 10:03:41 gsyprf11 kernel: sr4-7   0000000000000300 0000000000000300 0000000000000300 0000000000000300
Jun 20 10:03:41 gsyprf11 kernel: 
Jun 20 10:03:41 gsyprf11 kernel: IASQ: 0000000000000300 0000000000000300 IAOQ: 0000000040041f17 0000000040041f1b
Jun 20 10:03:41 gsyprf11 kernel:  IIR: 0015e398    ISR: 0000000010240080  IOR: 0000006d5ab068a0
Jun 20 10:03:41 gsyprf11 kernel:  CPU:        0   CR30: 000000002e9a0000 CR31: 00000000104f8000
Jun 20 10:03:41 gsyprf11 kernel:  ORIG_R28: 0000000000000000

Looking at the core dump, I noted that the insn at 0x40041f14 was
stw rp,-14(sr0,sp).  This is doesn't agree with the IIR value shown above.
It is supposed to contain the trapping instruction when an illegal instruction
trap occurs (type 8).  I'm not sure how this can happen.  The register
values recorded in the core dump are consistent with those above,
including IIR.  The trap occured on the first instruction of a function.

I have also noted that gdb isn't able to `step' into functions.  Also,
breakpoints don't always take until a program is restarted.  Richard
Hirst did a flush_icache_page patch to fix this problem about a year
ago.

Richard Hirst <rhirst@linuxcare.com> wrote on 29 May 2002:
>  gdb has a problem in that it often doesn't stop the target program
>  when you do a 'step' or 'next'.  This is because it plants breakpoints,
>  but those breakpoints sit in the data cache and don't get flushed
>  through to be visible as code in time.  We need a flush_icache_page()
>  implementation to fix this; the following adds that and
>  flush_icache_range() also.  It does fix gdb for me on my a500.

I am currently seeing these problems on gsyprf11.external.hp.com
which is a 9000/800/A500-6X (PA8700 (PCX-W2)).  The system is
2.4.20-pa31.

Possibly, there is a problem with cache flushing in both cases.  Thoughts?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: [parisc-linux] ATY RAGE XL progress or Dino gscpci bridge pb?[was: Re: HP C180 video
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Hi Grant,

Grant Grundler wrote:

>On Sun, Jun 15, 2003 at 04:11:46PM +0000, Joel Soete wrote:
>  
>
>>I tried to use a "PGX64 alias Rage xl " pluged in the first slot of my 
>>b180L. It seems to be well supported by kernel 2.4.21 (modeprobe 
>>ati128fb; # modules were well loaded).
>>    
>>
>
>cool - that's a good first step. I don't know where to go from there.
>  
>
Hmm in fact I obtain better results with atyfb + "Mach64 CT/VT/GT/LT 
(incl. 3D RAGE) support (NEW)";
this time I obtain such message for kernel advising me that 'atyfb' 
modules is loaded and some other info collected from the device itself.

>>But no success to make XFree86 
>>works (fbset /dev/fb0 not found)
>>    
>>
I also reach to get (not yet changing) default setup with "fbset -fb 
/dev/fb1" :-)
But not yet find the way to setup X using /dev/fb1 in place of fb0 ;-( ?

Let see later because my very problem is there:
a) if I rmmod atyfb the system crashes
b) if I do not include "Generic sti fb" in the config of my kernel, when 
I insmod atyfb the system crashes also
c) if I try to use Equinox serial mux (8P) (an oem HP product) module 
(with our without your patch Grant) the system crashes also?

The system is a B180 model using Dino GSCPCI bridge and in the two cases 
(even if messages are a bit different) the TOC shows always a pb on this 
bus (the analyse of toc after the crash of insmod eqnx point out a pb in 
timer_? routine). And in fact I figure out that I never have to use this 
bridge for another card?
Is somebody else used it successfuly or could it be broken?

Thanks again for any help,
    Joel




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This is a multi-part message in MIME format.

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hello.
I have a hp720/60 system. I want to install PA/Linux on it. My problem =
is that I don't have a CDrom drive. How can I make a boot-disk to be =
able to get my machine running. From where can I download a boot disk =
image?

Thanx

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charset=3Diso-8859-1">
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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>hello.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I have a hp720/60 system. I want to =
install=20
PA/Linux on it. My problem is that I don't have a CDrom drive. How can I =
make a=20
boot-disk to be able to get my machine running. From where can I =
download a boot=20
disk image?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanx</FONT></DIV></BODY></HTML>

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Xref: news.gmane.org gmane.linux.ports.parisc:18720

Hi all,

Sorry to answer to myself.

Joel Soete wrote:

> Matthew Wilcox wrote:
>
>> On Sun, Jun 15, 2003 at 03:55:47PM +0000, Joel Soete wrote:
>>  
>>
>>> Even though merge seems to me easy, if my merge patch (a diff 
>>> between 2.4.21 vanilla and my stuff) would help you, let me know. I 
>>> will so try to prepare it on monday.
>>>   
>>
>>
>> The merge is not the problem; importing the new upstream version into
>> our CVS is the problem.
>>
> I well understand this pb ;-)
> may be opportunity to test svn?

May be not so stupid ;-) finaly: see <http://lwn.net/Articles/36336/> ?

>>
>> Having said that, when we're done, if you want to compare with your 
>> tree,
>> that would be useful.
>
And finaly why not bypass 2.4.21 and jump directly to 2.4.22? would it 
not be easiest for the merge with upstream?

Cheers,
    Joel




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Subject: Re: [parisc-linux] help on hp720/60
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Cc: parisc-linux@parisc-linux.org
To: Nagy Istvan <nistvan_ro@easynet.ro>
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Xref: news.gmane.org gmane.linux.ports.parisc:18721

Hi Nagy,

Nagy Istvan wrote:

>hello.
>I have a hp720/60 system. I want to install PA/Linux on it. My problem is that I don't have a CDrom drive. How can I make a boot-disk to be able to get my machine running. From where can I download a boot disk image?
>
>Thanx
>
>  
>
I hope that <http://pateam.esiee.fr/parisc-linux-boot/doc.html> will 
help you.

Joel



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Subject: [parisc-linux] ARP resolution trouble
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Xref: news.gmane.org gmane.linux.ports.parisc:18722

Hi,

I've got a B132L+ under 2.4.20-pa23 and I am encountering with ARP 
request/resolution : sometimes my B132 become unreachable from some
machines of my LAN. Every host is concerned and it seems to happen
every times the host is idle on the LAN.

Here is what I saw :

    - the ARP mechanism flush the mac address table of the host (due
    to a timeout because the host was idle). If the host want to reach the
    B132, it has to make an ARP request.

    - this request is not see at all by the B132L which already have the
    mac address of the host in his mac address table (I think it is because
    the B132L keep it from a previous trafic).

    - the host must do a broadcast (a ping broadcast for example) to be
    beeing reachable again from the B132.

    - if I keep a connection open between the host and the B132 (like a
    ssh session for example), this never happen.

Any idea ?




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Subject: Re: [parisc-linux] Some 2.5-testing
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This is a multi-part message in MIME format.
--------------040504060700030405030907
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 8bit

Hi there,

sorry for the delay, but it took some time to get beck to my HP and 
built an new kernel. With disabled HIL-Support I get a working kernel. 
Bootlog is attached. So I would like to say thank you for the great job 
you all do.
I just recognized two failures. One is: "Setting up general console 
font...set_kernel_font: Function not implemented" during an init-script 
and the other is this: "gsckbd_leds: timeout".
If  I can help to test patches to get HIL-Support working let me know.
Greetings,
    Rdiger

--------------040504060700030405030907
Content-Type: text/plain;
 name="gandalf-2.5.72-pa1-3.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="gandalf-2.5.72-pa1-3.log"



----------------------------------------------------------------------------
BootRom Version    1.6  
Memory Size:  128 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.
----------------------------------------------------------------------------
Command                                Description
-------                                -----------
Auto [boot|search] [on|off]            Set/show auto mode
Boot [pri|alt [isl]]                   Boot from primary or alternate path
Boot [scsi|eisa.<slot>[.<addr>]] [isl] Boot from SCSI or EISA
Boot lan[.<addr>] [install] [isl]      Boot from LAN
Chassis [on|off]                       Set/show chassis codes display mode
DefaultSS                              Reboot and set EEPROM to default values
Diagnostic [on|off]                    Set/show diagnostic boot mode
Fastboot [on|off]                      Set/show fast boot mode
Help                                   Show this command menu
Information                            Show system information
LanAddress                             Show LAN station addresses
Monitor [<DEV>[.<type>]]               Set/show graphics monitor type
                                       (<DEV>=graphics|graphics_<1|2>)
Path [pri|alt [<DEV>[.<addr>]]]        Set/show boot source path
                                       (<DEV>=lan|scsi|eisa.<slot>)
Path [console [<DEV>[.<parm>]]]        Set/show boot console path
                                       (<DEV>=<RS232>|<GRAPH>
                                        <RS232>=rs232|rs232_2
                                        <parm>=<baud>.<length>.<parity>
                                        <GRAPH>=graphics|graphics_<1|2>
                                        <parm>=<monitor>)
Path [keyboard [hil|ps2]]              Set/show boot keyboard path
Pim [hpmc|toc|lpmc]                    Show PIM info
Search [ipl] [scsi|eisa]               Show potential boot devices
Search [ipl] [lan [install]]           Show potential boot LAN devices
Secure [on|off]                        Set/show security mode
----------------------------------------------------------------------------
BOOT_ADMIN> bo pri ipl





Attempting to boot.

Loading Initial Program Loader


IPL successfully loaded


Booting
palo ipl 1.2 root@b2000 Tue Jan 14 13:13:07 MST 2003


Partition Start(MB) End(MB) Id Type


1               1      22   f0 Palo


2              23      64   83 ext2


3              65     194   82 swap


4             195    2046   83 ext2



PALO(F0) partition contains:

    0/vmlinux32 3223985 bytes @ 0x48000


Information: No console specified on kernel command line. This is normal.

PALO will choose the console currently used by firmware (serial).Current command line:

2/vmlinux root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102

 0: 2/vmlinux

 1: root=/dev/sda4

 2: HOME=/

 3: devfs=mount

 4: console=ttyS0

 5: TERM=vt102


Edit which field?

(or 'b' to boot with this command line)? 0 b 0

2/vmlinux-2.5.72-pa1

Current command line:

2/vmlinux-2.5.72-pa1 root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102

 0: 2/vmlinux-2.5.72-pa1

 1: root=/dev/sda4

 2: HOME=/

 3: devfs=mount

 4: console=ttyS0

 5: TERM=vt102


Edit which field?

(or 'b' to boot with this command line)? 0b  b


Command line for kernel: 'root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.5.72-pa1'

Selected kernel: /vmlinux-2.5.72-pa1 from partition 2

ELF32 executable

Entry 00100000 first 00100000 n 3

Segment 0 load 00100000 size 2325984 mediaptr 0x1000

Segment 1 load 00338000 size 463048 mediaptr 0x239000

Segment 2 load 003ac000 size 524416 mediaptr 0x2ab000

Branching to kernel entry point 0x00100000.  If this is the last

message you see, you may need to switch your console.  This is

a common symptom -- search the FAQ and mailing list at parisc-linux.org


Linux version 2.5.72-pa1 (ruediger@gandalf) (gcc version 3.0.4) #2 Fri Jun 20 20:56:57 CEST 2003
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 000060b0 00000481 00000000 00000000 77b661a7 00000000 00000004 00000072 00000072
vers  0000000b
model 9000/715
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
  DMA zone: 32768 pages, LIFO batch:8
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Building zonelist for node : 0
Kernel command line: root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.5.72-pa1
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Calibrating delay loop... 99.73 BogoMIPS
Memory: 126144k available
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
-> /dev
-> /dev/console
-> /root
POSIX conformance testing by UNIFIX
Initializing RT netlink socket
EISA bus registered
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf4000000 [0], versions 0x4, 0x0, 0x77
2. Mirage GSC Builtin Graphics (10) at 0xf8000000 [1], versions 0x13, 0x0, 0x85
3. Mirage Core BA (11) at 0xf0100000 [2], versions 0x29, 0x0, 0x81
4. Mirage Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x29, 0x0, 0x82
5. Mirage Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x29, 0x0, 0x8a
6. Mirage Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x29, 0x0, 0x8c
7. Mirage Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x29, 0x0, 0x74
8. Mirage Audio (10) at 0xf0104000 [2/0/8], versions 0x29, 0x0, 0x7b
9. Mirage Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x29, 0x0, 0x83
10. Mirage Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x29, 0x0, 0x84
11. Mirage Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x29, 0x0, 0x84
12. Mirage Wax BA (11) at 0xf0200000 [5], versions 0x13, 0x0, 0x8e
13. Mirage 100 Wax HIL (10) at 0xf0201000 [5/0/1], versions 0x13, 0x0, 0x73
14. Mirage Wax RS-232 (10) at 0xf0202000 [5/0/2], versions 0x13, 0x0, 0x8c
15. Mirage 100 (0) at 0xfffbe000 [8], versions 0x60b, 0x0, 0x4
16. Memory (1) at 0xfffbf000 [9], versions 0x4b, 0x0, 0x9
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
Lasi version 0 at 0xf0100000 found.
Wax at 0xf0200000 found.
BIO: pool of 256 setup, 14Kb (56 bytes/bio)
biovec pool[0]:   1 bvecs: 244 entries (12 bytes)
biovec pool[1]:   4 bvecs: 244 entries (48 bytes)
biovec pool[2]:  16 bvecs: 244 entries (192 bytes)
biovec pool[3]:  64 bvecs: 244 entries (768 bytes)
biovec pool[4]: 128 bvecs: 122 entries (1536 bytes)
biovec pool[5]: 256 bvecs:  61 entries (3072 bytes)
block request queues:
 4/128 requests per read queue
 4/128 requests per write queue
 enter congestion at 15
 exit congestion at 17
SCSI subsystem initialized
pty: 256 Unix98 ptys configured
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing enabled
Gecko-style soft power switch enabled.
lp: driver loaded but no devices found
Generic RTC Driver v1.07
ttyS0 at MMIO 0xf0105800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xf0202800 (irq = 121) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 7A DC 08 IRQ 87.
82596.c $Revision: 1.29 $
airo:  Probing for PCI adapters
airo:  Finished probing for PCI adapters
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2
scsi0 : LASI SCSI 53c700
scsi0: (2:0) Synchronous at offset 8, period 100ns
  Vendor: PLEXTOR   Model: CD-ROM PX-20TS    Rev: 1.01
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi0: (3:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST32430N          Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
st: Version 20030413, fixed bufsize 32768, s/g segs 256
scsi0: (3:0) Enabling Tag Command Queuing
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4
Attached scsi disk sda at scsi0, channel 0, id 3, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.12
Attached scsi generic sg0 at scsi0, channel 0, id 2, lun 0,  type 5
Attached scsi generic sg1 at scsi0, channel 0, id 3, lun 0,  type 0
STI GSC/PCI core graphics driver Version 0.9a
STI byte mode ROM at f4000000, hpa at f4000000
STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071A
STI word mode ROM at f0024000, hpa at f8000000
STI id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1024
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
mice: PS/2 mouse device common for all mice
Found HIL bus at 0xf0201000, IRQ 126
HIL: no keyboard present.
input: HIL keyboard, ID -1 at 0xf0201000 (irq 126) found and attached
Keyboard initialization sequence failled
gsckbd_leds: timeout
input: PS/2 keyboard port at 0xf0108000 (irq 69) found and attached
input: PS/2 mouse port at 0xf0108100 (irq 69) found and attached
oprofile: using timer interrupt.
NET4: Linux TCP/IP 1.0 for NET4.0
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 516k freed

INIT: version 2.84 booting
Mounting devfs on /dev
mount: devfs has wrong device number or fs type devfs not supported
Loading /etc/console/boottime.kmap.gz
Activating swap.
Adding 132920k swap on /dev/sda3.  Priority:-1 extents:1

Checking root file system...
fsck 1.34-WIP (21-May-2003)
/dev/sda4: clean, 105836/237120 files, 394653/474075 blocks
EXT3 FS 2.4-0.9.16, 02 Dec 2001 on sda4, internal journal

System time was Sun Jun 22 09:37:50 UTC 2003.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Sun Jun 22 09:37:52 UTC 2003.
Checking all file systems...
fsck 1.34-WIP (21-May-2003)
/dev/sda2: clean, 30/10944 files, 35929/43617 blocks
Setting kernel variables..
Mounting local filesystems...
/dev/sda2 on /boot type ext2 (rw)
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces... eth0: link ok.

done.
Starting portmap daemon: portmap.
Loading the saved-state of the serial devices...
Setting up general console font...set_kernel_font: Function not implemented
cannot (un)set powersave mode
[14;30]
Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Sun Jun 22 11:37:59 CEST 2003

Cleaning: /tmp /var/lock /var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
Setting up X server socket directory /tmp/.X11-unix...done.

INIT: Entering runlevel: 2

Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting mouse interface server: gpm.
Starting printer spooler: lpd.
Starting OpenBSD Secure Shell server: sshd.
Starting webmin: webmin.
Setting up X font server socket directory /tmp/.font-unix...done.
Starting X font server: xfs.
Starting internet superserver: xinetd.
Restoring mixer settings: failed.
Starting NFS common utilities: statd lockd.
Starting anac(h)ronistic cron: anacron.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.
Setting up X server socket directory /tmp/.X11-unix...done.

--------------040504060700030405030907--



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On Sul, 2003-06-22 at 09:17, baddy@free.fr wrote:
>     - this request is not see at all by the B132L which already have the
>     mac address of the host in his mac address table (I think it is because
>     the B132L keep it from a previous trafic).

Sounds like you have a buggy bridge somewhere. Some vendors can't read
the specs and drop rather than flood unknown mac addresses. This breaks
stuff just as you describe.




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Subject: [parisc-linux] Problem during dselect with 2.5.72-pa1
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Hi there,

after getting a working 2.5-kernel, I decided play a little bit with it. 
So I run dselect to update my debian. Everything went fine until 
unpacking a large package, the package "tetex-extra". After a while I 
heard no sound from the harddisk and dselect didn't response, so I 
opened the serial console. The following errror was reported in an 
endless loop:

------------SNIP-------------

    kernel BUG at include/linux/swapops.h:68!
    Kernel addresses on the stack:
     [<10124f20>] .L1612+0x0/0x38
     [<10105adc>] dump_stack+0x10/0x1c
     [<1014f0bc>] .L1248+0x0/0x28
     [<10140a78>] .L1226+0x0/0x7c
     [<1014f214>] .L1302+0x14/0x180
     [<10152354>] .L1179+0x0/0x90
     [<10145590>] .L1536+0x58/0x244
     [<101440ac>] .L1286+0x20/0x30
     [<10145a50>] .L1553+0xc4/0x2b8
     [<10146324>] .L1729+0xb8/0xec
     [<10146750>] balance_pgdat+0x16c/0x1bc
     [<10146880>] .L1802+0x0/0x70
     [<10109c5c>] ret_from_kernel_thread+0x1c/0x24

    kernel BUG at mm/rmap.c:343!
    Kernel addresses on the stack:
     [<10124f20>] .L1612+0x0/0x38
     [<10105adc>] dump_stack+0x10/0x1c
     [<1014efcc>] .L1254+0x0/0x24
     [<10140a78>] .L1226+0x0/0x7c
     [<1014f214>] .L1302+0x14/0x180
     [<10152354>] .L1179+0x0/0x90
     [<10145590>] .L1536+0x58/0x244
     [<101440ac>] .L1286+0x20/0x30
     [<10145a50>] .L1553+0xc4/0x2b8
     [<10146324>] .L1729+0xb8/0xec
     [<10146750>] balance_pgdat+0x16c/0x1bc
     [<10146880>] .L1802+0x0/0x70
     [<10109c5c>] ret_from_kernel_thread+0x1c/0x24

    kernel BUG at include/linux/swapops.h:68!
    Kernel addresses on the stack:
     [<10124f20>] .L1612+0x0/0x38
     [<10105adc>] dump_stack+0x10/0x1c
     [<1014f0bc>] .L1248+0x0/0x28
     [<10140a78>] .L1226+0x0/0x7c
     [<1014f214>] .L1302+0x14/0x180
     [<10152354>] .L1179+0x0/0x90
     [<10145590>] .L1536+0x58/0x244
     [<101440ac>] .L1286+0x20/0x30
     [<10145a50>] .L1553+0xc4/0x2b8
     [<10146324>] .L1729+0xb8/0xec
     [<10146750>] balance_pgdat+0x16c/0x1bc
     [<10146880>] .L1802+0x0/0x70
     [<10109c5c>] ret_from_kernel_thread+0x1c/0x24

    kernel BUG at mm/rmap.c:343!

------------SNAP-------------

Any idea why this had happened?
Kernel was compiled via "make defconfig", but disabled HIL-Support and 
gcc-3.2.

Rdiger



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Subject: Re: [parisc-linux] Problem during dselect with 2.5.72-pa1
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Sorry, but I have to reply myself. Apart from the error dselect worked 
further on and it gave me the following message:

------------SNIP-----------

    Vorbereiten zum Ersetzen von tetex-extra 1.0.2+20011202-3 (durch
    .../tetex-extra_2.0.2-4_all.deb) ...
    Entpacke Ersatz fr tetex-extra ...
    texhash: Updating /var/lib/texmf/ls-R...
    texhash: Done.
    Vorbereiten zum Ersetzen von netbase 4.09 (durch
    .../archives/netbase_4.10_all.deb) ...
    Entpacke Ersatz fr netbase ...
    E: Sub-process /usr/bin/dpkg received a segmentation fault.
    Some errors occurred while unpacking. I'm going to configure the
    packages that were installed. This may result in duplicate errors
    or errors caused by missing dependencies. This is OK, only the errors
    above this message are important. Please fix them and run [I]nstall
    again
    Press enter to continue.

------------SNAP-----------

And another error message appeared on the serial console:

------------SNIP------------

    kernel BUG at mm/memory.c:1440!
    Kernel addresses on the stack:
     [<10124f20>] .L1612+0x0/0x38
     [<10105adc>] dump_stack+0x10/0x1c
     [<1014a798>] do_file_page+0x124/0x134
     [<1014a85c>] .L2265+0x0/0x40
     [<10157b20>] do_sync_write+0x7c/0x88
     [<101248a8>] .L1377+0x0/0x3c
     [<10104a20>] .L918+0x10/0x4c
     [<10157be4>] .L1432+0x0/0x64
     [<10128c48>] .L919+0x10/0x24
     [<101062f0>] .L1040+0x0/0x40
     [<10157d60>] .L1447+0x4c/0x5c
     [<10107268>] do_cpu_irq_mask+0x90/0xf0
     [<1010afe8>] syscall_exit+0x0/0x28
     [<1010a088>] intr_check_sig+0x0/0xc

----------SNAP-------------

Rdiger




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On Tuesday 20 May 2003 11:23 pm, Randolph Chung wrote:
> > If yes, does the following approach work: Build a libstdc++5-3.3,
> > conflicting with libstdc++5 (including libstdc++ with the same soname)
> > and doing binary uploads for hppa for all libstdc++5 dependent
> > packages? (The same could be done for m68k, but the compatibility
> > argument doesn't hold as Debian seems to be the only m68k based
> > distro).
>
> Aside from the evilness of doing binNMUs of this magnitude, I doubt a
> "transition" that doesn't change the SONAME will work. As soon as the
> new libstdc++ is installed, every c++ app on the box will instantly
> break. This means if anything happens e.g. to apt during the update, the
> system will get into a very nasty state. I don't think this is worth it.
>

How many critical apps are actually C++?  Is the apt suite itself?
As long as /sbin/* is C, I don't see this as a showstopper for migrating to 
using a superior mechanism, which imo, should be a big goal--the sooner it's  
taken care of the less problematic it will be...

just a thought...

Nick



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Subject: [parisc-linux] Re: ATY RAGE XL progress or Dino gscpci bridge pb?[was: Re: HP C180 video card]
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On Sat, Jun 21, 2003 at 02:24:41PM +0000, Joel Soete wrote:
...
> c) if I try to use Equinox serial mux (8P) (an oem HP product) module 
> (with our without your patch Grant) the system crashes also?

I haven't tested the Serial 8p PCI card under parisc yet.
To date, that card has always lived in a x86 host. I just
haven't had time to play with it under parisc - I've needed it
working to get other things done.


> The system is a B180 model using Dino GSCPCI bridge and in the two cases 
> (even if messages are a bit different) the TOC shows always a pb on this 
> bus (the analyse of toc after the crash of insmod eqnx point out a pb in 
> timer_? routine).

The symptom is very likely only similar and not identical.
I'd find it very odd if both cards crashed for the same reason.

AFAICT, eqnx driver doesn't call pci_enable_device().  The bug I'd be
looking for is a PCI "resource" (BAR) to be accessed before it was enabled.
Try adding a pci_enable_device() to eqnx_init() or eqx_pci_buspresent().
[ *gag* I'm surprised this code even works on x86. ]

PARISC "hard fails" when reading from disabled or non-existant PCI
address space while x86 "soft fails".  ie x86 gets garbage back on
a "bad" read while PARISC will crash.

The crash in the timer routine is interesting and would make it
interesting for me to move the equinox card to an a500.
Randolph, Paul (Bame), and I occcasionally try to track down the
timer problems that plague SMP under 64-bit parisc kernels.


> And in fact I figure out that I never have to use this 
> bridge for another card?

GSCtoPCI connects the PCI slot to the rest of the system.
Try "lspci" and see what you have connected.

> Is somebody else used it successfuly or could it be broken?

Dino worked fine before.
I ran B180 as my desktop for over a year (my desktop is now a C3000).

grant


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On Sun, Jun 22, 2003 at 11:04:50PM -0600, Grant Grundler wrote:
> AFAICT, eqnx driver doesn't call pci_enable_device().  The bug I'd be
> looking for is a PCI "resource" (BAR) to be accessed before it was enabled.
> Try adding a pci_enable_device() to eqnx_init() or eqx_pci_buspresent().
> [ *gag* I'm surprised this code even works on x86. ]

x86 typically doesn't need to call pci_enable_device, so people who've
never tried their driver on any other box may have missed it.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sun, Jun 22, 2003 at 05:21:08PM +0200, Rdiger Scholz wrote:
> ------------SNIP-------------
> 
>    kernel BUG at include/linux/swapops.h:68!

*gulp*.  This is pte_file() stuff; i've not been paying attention to that
bit.

>    kernel BUG at mm/rmap.c:343!

.. as is this.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Re: ATY RAGE XL progress or Dino gscpci bridge
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Matthew Wilcox wrote:

>On Sun, Jun 22, 2003 at 11:04:50PM -0600, Grant Grundler wrote:
>  
>
>>AFAICT, eqnx driver doesn't call pci_enable_device().  The bug I'd be
>>looking for is a PCI "resource" (BAR) to be accessed before it was enabled.
>>Try adding a pci_enable_device() to eqnx_init() or eqx_pci_buspresent().
>>[ *gag* I'm surprised this code even works on x86. ]
>>    
>>
>
>x86 typically doesn't need to call pci_enable_device, so people who've
>never tried their driver on any other box may have missed it.
>
>  
>
 From the very last relase 4.05 (dated April 7 iirc) it support also 
"Intel IA-64 platforms".
But I will have a look in more details and also post the toc analyse.

Thanks for help and attention,
    Joel



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On Mon, Jun 23, 2003 at 12:18:36PM +0100, Matthew Wilcox wrote:
> x86 typically doesn't need to call pci_enable_device, so people who've
> never tried their driver on any other box may have missed it.

Happen to know if that is true for hotplug support?
ie does x86 requires something like pci_enable_device() for hotplug to work?

BTW, my comment was actually intended for other parts of the code I
was digging though, not the just lack of pci_enable_device().

grant


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On Mon, Jun 23, 2003 at 04:00:08PM +0000, Joel Soete wrote:
> From the very last relase 4.05 (dated April 7 iirc) it support also 
> "Intel IA-64 platforms".

Those behave the same way as ia32 boxes.
Wonder if I can get a "sample card" to test an HP IA64 platform
(ZX1).... :^)


> But I will have a look in more details and also post the toc analyse.

yes, please do.

thanks,
grant


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On Mon, Jun 23, 2003 at 04:00:08PM +0000, Joel Soete wrote:
> From the very last relase 4.05 (dated April 7 iirc) it support also 
> "Intel IA-64 platforms".


Joel,
Could you post a URL or make the eqnx-4.05 linux driver available?
I didn't see it here:
ftp://guest:guest@www.equinox.com/library/legacy%20drivers/sst/

Last one I found was the 4.01 from last year...

thanks,
grant


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From: "Joel Soete" <jsoe0708@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: ATY RAGE XL progress or Dino gscpci bridge pb?[was: Re: HP C180 video card]
Date: Tue, 24 Jun 2003 09:16:47 +0200
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To: "Grant Grundler" <grundler@parisc-linux.org>,
	"Joel Soete" <joel.soete@tiscali.be>
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Xref: news.gmane.org gmane.linux.ports.parisc:18735

Hi Grant,

> Joel,
> Could you post a URL or make the eqnx-4.05 linux driver available?
> didn't see it here:
> ftp://guest:guest@www.equinox.com/library/legacy%20drivers/sst/
>
> Last one I found was the 4.01 from last year...
>
Yes I now, they change the way to proceed the download and I also spend a
certain time to find it:
- on the main page (http://www.equinox.com/) you have a "Download Drivers"
pointing to <http://www.equinox.com/Download_Drivers129.html>
- ont he middle of this page "Enter Downloadable Files Database" <http://www.equinox.com/Driver_Search152.cfm>
- at the bottom of this one "SST driver for Linux" driving you to <http://www.equinox.com/Driver_Search_Results153.cfm?uid=309>
- here you are at the top: 
<http://www.equinox.com/DownloadFile.cfm?File=eqnx-4.05.tar.Z>

[Just show you the way because I am not sure that they are fixed references
:)]

btw, I also have a look into aty module and if I well fond pci_enable_device()
in module aty128fb (which load and unload well but useless for my card),
otc I do not find it into atifb. So I will also look this way for this driver.

Finaly here is the toc, dump and corresponding 'analyses'

===== ATYFB ====
===  Dump  ===

Stack Dump:
 1631ca80:  0004ff0e 1
327120 00000001 16a37840
 1631ca70:  163e1ac0 10125d70 1631c7e8 17c73280
 1631ca60:  17cc08e0 16a37840 17c732ec 00000001
 1631ca50:  1631c8d8 16500900 0000001b 00000000
 1631ca40:  ffffffff 103a6b00 00000000 103a6810
 1631ca30:  103a6810 103a6810 
000000f 4017e33c

Kernel addresses on the stack:
 [<10125d70>]  [<10122458>]  [<10122308>]  [<10122050>]
 [<10174650>]  [<10109078>]  [<102b6aa0>]  [<1016d268>]
 [<101684f4>]  [<10132cf0>]  [<1013f7b4>]  [<1013e2e4>]
 [<1014e9c0>]  [<101364c4>]  [<101684f4>]  [<101364c4>]
 [<10133004>]  [<1012006c>]  [<101684f4>]  [<1013ed34>]
 [<10147e2c>]  [<10109f90>]  [<10109084>]  [<10109d4c>]
 [<1013f7b4>]  [<1013e2e4>]  [<1014e9c0>]  [<10121318>]


Kernel Fault: Code=26 regs=1631ca80 (Addr=00000010


     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110 Not tainted
r00-03  00000000 103a7810 10125d70 103a8010
r04-07  103a8010 103a6810 1631ca08 103a6810
r08-11  103a7810 4017e33c bff016e0 00043230
r12-15  0002d000 103a78
0 103a7010 000e0d08
r16-19  1631c6c0 00000000 00028d90 00000010
r20-23  105b6de0 16a37840 16a37850 00000000
r24-27  00000000 103a7010 00000000 102f2010
r28-31  00001000 00000000 1631ca80 10122458
sr0-3   00000000 000002a4 00000000 000002a4
sr4-7 
 00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10125ee0 10125ee4
 IIR: 0e741280    ISR: 00000000  IOR: 00000010
 CPU:        0   CR30: 1631c000 CR31: 10390000
 ORIG_R28: 102bb0a0
.

===  Analyse  ===
IAOQ = 10125ee0
Func:
timer_bh, Off: 1cc, Addr: 0x10125ee0
10125ee0:	0e 74 12 80 	stw r20,0(sr0,r19)
10125ee4:	0e 93 12 88 	stw r19,4(sr0,r20)
10125ee8:	0e a0 12 80 	stw r0,0(sr0,r21)
10125eec:	0e a0 12 88 	stw r0,4(sr0,r21)

GR0 = 00000000

GR1 = 103a7810
Func: tv
, Off: 1a8, Addr: 0x103a7810

GR2 = 10125d70
Func: timer_bh, Off: 5c, Addr: 0x10125d70
10125d70:	00 01 0d 60 	ssm 1,r0
10125d74:	2b 68 30 00 	addil 11800,dp,%r1
10125d78:	48 33 03 88 	ldw 1c4(r1),r19
10125d7c:	08 73 04 13 	sub r19,r3,r19

GR3 
 103a8010
Func: tv1, Off: 7a4, Addr: 0x103a8010

GR4 = 103a8010
Func: tv1, Off: 7a4, Addr: 0x103a8010

GR5 = 103a6810
Func: log_buf, Off: 3e68, Addr: 0x103a6810

GR6 = 1631ca08

GR7 = 103a6810
Func: log_buf, Off: 3e68, Addr: 0x103a6810

G
8 = 103a7810
Func: tv2, Off: 1a8, Addr: 0x103a7810

GR9 = 4017e33c

GR10 = bff016e0

GR11 = 00043230

GR12 = 0002d000

GR13 = 103a7870
Func: tv1, Off: 4, Addr: 0x103a7870

GR14 = 103a7010
Func: event, Off: 0, Addr: 0x103a7010

GR15 = 0
0e0d08

GR16 = 1631c6c0

GR17 = 00000000

GR18 = 00028d90

GR19 = 00000010

GR20 = 105b6de0

GR21 = 16a37840

GR22 = 16a37850

GR23 = 00000000

GR24 = 00000000

GR25 = 103a7010
Func: event, Off: 0, Addr: 0x103a7010

GR26 = 000000
0

GR27 = 102f2010
Func: $global$, Off: 0, Addr: 0x102f2010

GR28 = 00001000

GR29 = 00000000

GR30 = 1631ca80

GR31 = 10122458
Func: bh_action, Off: 40, Addr: 0x10122458
1012243c:	8e 60 20 18 	cmpib,<> 0,r19,10122450 <bh_action+0x38>
101
2450:	e6 c0 20 00 	be,l 0(sr4,r22),%sr0,%r31
10122454:	08 1f 02 42 	copy r31,rp
10122458:	e8 1f 1f d5 	b,l 10122448 <bh_action+0x30>,r0
1012245c:	4b c2 3f 59 	ldw -54(sp),rp

Kernel symbols on the stack:
[<10125d70>]: Func: timer_bh, Off: 5c, Add
: 0x10125d70
[<10122458>]: Func: bh_action, Off: 40, Addr: 0x10122458
[<10122308>]: Func: tasklet_hi_action, Off: 7c, Addr: 0x10122308
[<10122050>]: Func: do_softirq, Off: ec, Addr: 0x10122050
[<10174650>]: Func: journal_dirty_metadata, Off: 12c, A
dr: 0x10174650
[<10109078>]: Func: intr_check_resched, Off: 0, Addr: 0x10109078
[<102b6aa0>]: Func: number, Off: 3c0, Addr: 0x102b6aa0
[<1016d268>]: Func: ext3_do_update_inode, Off: 238, Addr: 0x1016d268
[<101684f4>]: Func: ext3_file_write, Off: 20
 Addr: 0x101684f4
[<10132cf0>]: Func: generic_file_write, Off: 1cc, Addr: 0x10132cf0
[<1013f7b4>]: Func: chrdev_open, Off: 64, Addr: 0x1013f7b4
[<1013e2e4>]: Func: dentry_open, Off: f4, Addr: 0x1013e2e4
[<1014e9c0>]: Func: locate_fd, Off: 120, Addr
 0x1014e9c0
[<101364c4>]: Func: kfree, Off: 48, Addr: 0x101364c4
[<101684f4>]: Func: ext3_file_write, Off: 20, Addr: 0x101684f4
[<101364c4>]: Func: kfree, Off: 48, Addr: 0x101364c4
[<10133004>]: Func: generic_file_write, Off: 4e0, Addr: 0x10133004

[<1012006c>]: Func: s_show, Off: 60, Addr: 0x1012006c
[<101684f4>]: Func: ext3_file_write, Off: 20, Addr: 0x101684f4
[<1013ed34>]: Func: sys_write, Off: a4, Addr: 0x1013ed34
[<10147e2c>]: Func: sys_fstat64, Off: 5c, Addr: 0x10147e2c
[<10109f90>]: F
nc: syscall_exit, Off: 0, Addr: 0x10109f90
[<10109084>]: Func: intr_check_sig, Off: 0, Addr: 0x10109084
[<10109d4c>]: Func: child_return, Off: 0, Addr: 0x10109d4c
[<1013f7b4>]: Func: chrdev_open, Off: 64, Addr: 0x1013f7b4
[<1013e2e4>]: Func: dentry
open, Off: f4, Addr: 0x1013e2e4
[<1014e9c0>]: Func: locate_fd, Off: 120, Addr: 0x1014e9c0
[<10121318>]: Func: it_real_fn, Off: 0, Addr: 0x10121318

Done.

============ another info about aty test ==================
Here is also the end of a toc 
 got before adding stifb console support
and wich made so simply crash the kernel as soon as insmod atifb:
Timestamp =   Fri Jun  20 09:17:56 GMT 2003    (20:03:06:20:09:17:56)

   No memory errors logged


I/O Module Error Log Information:

T
mestamp =   Fri Jun  20 09:17:57 GMT 2003    (20:03:06:20:09:17:57)

Bus    HPA       Module Type      Path  Slt Md Sev  Estat Requestor  Responder
--- ---------- ---------------- -------- -- -- ---- ----- ---------- ----------
 1  0xfff80000 Bus Bridge (PCI)                      0x09 0xfffbe000 0x00000000



PCI Error Summary

An error related to the GSC bus occurred. The
processor was the requestor. It could have been
a data parity error, an address parity error or a
GSC timeout. On PA
300 systems, check the MIOC
DIOERR register listed above.

I couldn't get more because addresses didn't matches any System nor vmlinux
addresses

===== Eqnx =====
===  TOC  ===

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC 
nformation ------------------

Timestamp =   Fri Jun  20 10:25:53 GMT 2003    (20:03:06:20:10:25:53)

HPMC Chassis Codes = 0xcbf0  0x505f  0xcbfb

General Registers 0 - 31
 0 -  3  0x00000000  0x1039f010  0x1011093c  0x0000ffff
 4 -  7  0x00000
01  0x00000000  0x0086d000  0x00000004
 8 - 11  0x00000000  0x00842010  0x00000000  0x00000000
12 - 15  0x00000000  0x0000001f  0x0000113f  0x00842010
16 - 19  0x000000ff  0x00842810  0x0004e158  0xfff8006c
20 - 23  0x0000000e  0x0000000f  0x1024fe
8  0x00000001
24 - 27  0x00000cfc  0x00000000  0x10079160  0x102f2010
28 - 31  0x0000fff8  0x00000940  0x15b807c0  0x1011093c

Control Registers 0 - 31
 0 -  3  0x00000000  0x00000000  0x00000000  0x00000000
 4 -  7  0x00000000  0x00000000  0x000
0000  0x00000000
 8 - 11  0x0000000c  0x00000000  0x000000c0  0x0000001f
12 - 15  0x00000000  0x00000000  0x00108800  0xe0000000
16 - 19  0x144d0fac  0x00000000  0x1024ff28  0x00141860
20 - 23  0x00000000  0xfff8006c  0x0006000e  0x80000000
24 - 2
  0x0030a000  0x05d2c000  0xffffffff  0xffffffff
28 - 31  0xaaaaaaaa  0x11111111  0x15b80000  0x10390000

Space Registers 0 - 7
 0 -  3  0x00000000  0x00000000  0x00000000  0x00000006
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000

IIA 
pace                    = 0x00000000
IIA Offset                   = 0x1024ff2c
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000

Bus Check                    = 0x00310000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
System Responder Address     = 0xfff8006c
System Requestor Address     = 0xfffbe000
Path Info                    = 0x0000
000
Physical Memory              = 0x08000000
Available Memory             = 0x08000000

CPU Diagnose Register 0      = 0x600048fc
MIOC Status Register         = 0x00001802
MIOC Control Register        = 0xb8050000
MIOC MDERRADD Error Address  =
0x00000008
MIOC DMAERR DMA Error Reg    = 0xfffffeff
MIOC DIOERR IO Error Reg     = 0xfff8006c

Memory Error Log Information:

Timestamp =   Fri Jun  20 10:25:53 GMT 2003    (20:03:06:20:10:25:53)

   No memory errors logged


I/O Module Err
r Log Information:

Timestamp =   Fri Jun  20 10:25:53 GMT 2003    (20:03:06:20:10:25:53)

Bus    HPA       Module Type      Path  Slt Md Sev  Estat Requestor  Responder
--- ---------- ---------------- -------- -- -- ---- ----- ---------- --------
-
 1  0xfff80000 Bus Bridge (PCI)                      0x0a 0x00000000 0x00000000



PCI Error Summary

The PCI bridge is in fatal mode.
This may be due to an error in a different component.

===  Analyse  ===
IAOQ = 0x1024ff2c
Func: analyz
_sbs, Off: 4cc, Addr: 0x1024ff2c
1024ff20:	0e a8 10 93 	ldw 4(sr0,r21),r19
1024ff24:	82 79 20 4a 	cmpb,=,n r25,r19,1024ff50 <analyze_sbs+0x4f0>
1024ff28:	08 16 02 57 	copy r22,r23
1024ff2c:	08 0a 02 56 	copy r10,r22

GR0 = 0x00000000

GR1 = 0x1
39f010
Func: hp_hardware_list, Off: 17500, Addr: 0x1039f010

GR2 = 0x1011093c
Func: inb, Off: 0, Addr: 0x1011093c
101108d4:	86 60 20 b0 	cmpib,= 0,r19,10110934 <pcxl_proc_info+0x1a4>
10110930:	4f c8 3f 01 	ldw,mb -80(sp),r8
10110934:	e8 57 0d dd
	b,l 10100028 <_text+0x28>,rp
10110938:	34 42 3f 41 	ldo -60(rp),rp
1011093c <inb>:
1011093c:	6b c2 3f d9 	stw rp,-14(sp)

GR3 = 0x0000ffff

GR4 = 0x00000001

GR5 = 0x00000000

GR6 = 0x0086d000

GR7 = 0x00000004

GR8 = 0x00000000

GR9 
 0x00842010

GR10 = 0x00000000

GR11 = 0x00000000

GR12 = 0x00000000

GR13 = 0x0000001f

GR14 = 0x0000113f

GR15 = 0x00842010

GR16 = 0x000000ff

GR17 = 0x00842810

GR18 = 0x0004e158

GR19 = 0xfff8006c

GR20 = 0x0000000e

GR21 =
0x0000000f

GR22 = 0x1024fef8
Func: analyze_sbs, Off: 498, Addr: 0x1024fef8
1024fef0:	49 88 00 28 	ldw 14(r12),r8
1024fef4:	08 08 02 58 	copy r8,r24
1024fef8:	08 08 02 43 	copy r8,r3
1024fefc:	0d 00 10 88 	ldw 0(sr0,r8),r8

GR23 = 0x00000001


GR24 = 0x00000cfc

GR25 = 0x00000000

GR26 = 0x10079160

GR27 = 0x102f2010
Func: __kstrtab_in_group_p, Off: 8, Addr: 0x102f2010

GR28 = 0x0000fff8

GR29 = 0x00000940

GR30 = 0x15b807c0

GR31 = 0x1011093c
Func: inb, Off: 0, Addr: 0x1011
93c
101108d4:	86 60 20 b0 	cmpib,= 0,r19,10110934 <pcxl_proc_info+0x1a4>
10110930:	4f c8 3f 01 	ldw,mb -80(sp),r8
10110934:	e8 57 0d dd 	b,l 10100028 <_text+0x28>,rp
10110938:	34 42 3f 41 	ldo -60(rp),rp
1011093c <inb>:
1011093c:	6b c2 3f d9 	stw
rp,-14(sp)


Done.
=================================================================================

But elsewhere you said other important thing to do, so do not spend to much
time (I just learn it for my own education :) )

Thanks again for
all,
    Joel


PS: I hope that what you will recieve will be still readable (this new webmail
interface has a strange behaviour, sorry)



---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be




From - Thu Nov 08 21:28:10 2018
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: ATY RAGE XL progress or Dino gscpci bridge
	pb?[was: Re: HP C180 video card]
Date: 24 Jun 2003 09:01:10 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:18736

On Maw, 2003-06-24 at 04:44, Grant Grundler wrote:
> On Mon, Jun 23, 2003 at 12:18:36PM +0100, Matthew Wilcox wrote:
> > x86 typically doesn't need to call pci_enable_device, so people who've
> > never tried their driver on any other box may have missed it.
> 
> Happen to know if that is true for hotplug support?
> ie does x86 requires something like pci_enable_device() for hotplug to work?

Yes



From - Thu Nov 08 21:28:10 2018
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From: =?ISO-8859-15?Q?R=FCdiger_Scholz?= <rscholz@hrzpub.tu-darmstadt.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] MAtrox graphics card and C360
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Hi there!

Has anyone running a Matrox graphics (especially a Matrox Millenium) in 
his C-class? I found a thread about this theme form January , but I 
wanted to know whether it's possible to get it run or not nowadays...
 
Thanks in advance,
    Rdiger



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Subject: [parisc-linux] Need Replacement was: Matrox graphics card and C360
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On Tue, 24 Jun 2003, R=FCdiger Scholz wrote:

> Hi there!
>
> Has anyone running a Matrox graphics (especially a Matrox Millenium) in
> his C-class? I found a thread about this theme form January , but I
> wanted to know whether it's possible to get it run or not nowadays...

I tried a ATI Mach64 and 3dfx Voodoo 3 3000 in a C240, they don't work
(no stifb - no wonder - and neither XFree86). Last time I tried was about
2 months ago however.
I don't care that much since I'm using the machine as a headless server.

I haven't heard any success reports of running non-HP graphic cards in
HP PA-RISC machines. Actually the only ones that work are the Visualize-EG
cards and the 'Artist'/(H)CRX-graphics on older 7xx workstations.

I'm pretty sure someone would have posted a mail like 'Whooaaa - it works!'
to the mailing list if the situation has changed in the meantime.


BTW, I have some hardware problems with my C240 lately. When it is cut of
from power (i.e. when there is a power outage or I pull the power plug),
I can turn it on again! I have to wait for some hours until and suddenly
the power button works again. This started to happen a couple of months
ago. I hardly turn the machine of, so I don't care that much, but it's
annoying nevertheless!
Even more strangely the SCSI bay doesn't get any power anymore, so I have
to use an external SCSI disk. This happened about a month ago after I
wanted to install a new SCSI drive. I suppose a fuse or two are broken ...
The power botton works, but none of the LEDs!

Does anybody know what could be the problem?

Well, so now I'm looking for a replacement for my C240 (I'd prefer a B2x00
or C3x00), but I'm low on money (as a PhD student), partly because I
recently bought a PrecisionBook for US $399. Unfortunately I can't use the
PrecisionBook as a replacement for my C240 as I can't connect any
USB-devices to it.

I would sell the PrecisionBook if there is some interest here.

Furthermore, if I can find a cheap replacement for my C240 (in Europe) I'd
dump it and sell it's memory (1GB RAM).

Please contact me if you are interested or know how/where to get
inexpensive HP workstations.


Thanks, Max



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>>>>> "M" == M Grabert <xam@cs.ucc.ie> writes:

M> BTW, I have some hardware problems with my C240 lately. When it is
M> cut of from power (i.e. when there is a power outage or I pull the
M> power plug), I can turn it on again! I have to wait for some hours
M> until and suddenly the power button works again. This started to
M> happen a couple of months ago. I hardly turn the machine of, so I
M> don't care that much, but it's annoying nevertheless!  Even more
M> strangely the SCSI bay doesn't get any power anymore, so I have to
M> use an external SCSI disk. This happened about a month ago after I
M> wanted to install a new SCSI drive. I suppose a fuse or two are
M> broken ...  The power botton works, but none of the LEDs!

I've experienced similar things in the past.  One of my C160s is a
notoriously bad booter.

The trick is to make sure that both the disk tray and the motherboard
tray are properly seated and screws tightened.

I tend to put my Cxxx boxes down on the floor - face side down - and
let the motherboard tray fall down the last couple of inches.  That
usually seats things nicely.

Also, make sure your disk tray screw is properly inserted.  The
power/LED assy. as well as disk device power and SCSI data pins are
all hooked up through a single connector at the back of the disk tray.

Give that box a big, tight hug.  That usually fixes it *).

*) Make sure nobody can see you when you are doing this.  More than
 once I have been accused of humping my PA-RISC hardware while
 performing this delicate repair procedure.

-- 
Martin K. Petersen      http://mkp.net/



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Subject: Re: [parisc-linux] Need Replacement was: Matrox graphics card and
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On 24 Jun 2003, Martin K. Petersen wrote:

> M> BTW, I have some hardware problems with my C240 lately. When it is
> M> cut of from power (i.e. when there is a power outage or I pull the
> M> power plug), I can turn it on again! I have to wait for some hours
> M> until and suddenly the power button works again. This started to
> M> happen a couple of months ago. I hardly turn the machine of, so I
> M> don't care that much, but it's annoying nevertheless!  Even more
> M> strangely the SCSI bay doesn't get any power anymore, so I have to
> M> use an external SCSI disk. This happened about a month ago after I
> M> wanted to install a new SCSI drive. I suppose a fuse or two are
> M> broken ...  The power botton works, but none of the LEDs!
>
> I've experienced similar things in the past.  One of my C160s is a
> notoriously bad booter.
>
> The trick is to make sure that both the disk tray and the motherboard
> tray are properly seated and screws tightened.

You can be sure it is properly seated! I've opened the C240 quite often
and installed/removed many PCI cards and hard drives in the past.
I guess I opened the case at least 30 times in the last years.

You're right, whenever there was a small gap between the motherboard and
the tray/power supply, I didn't work. However it is getting worse each
time I open the C240 to replace something. I think It's not supposed to be
opened so frequently ...

> I tend to put my Cxxx boxes down on the floor - face side down - and
> let the motherboard tray fall down the last couple of inches.  That
> usually seats things nicely.

Hehe, the same idea as me. The machine is really heavy, and this is also
the only way to open/close the machine without breaking your back ;)

> Also, make sure your disk tray screw is properly inserted.  The
> power/LED assy. as well as disk device power and SCSI data pins are
> all hooked up through a single connector at the back of the disk tray.

I thought of getting a multimeter and investigate which of the pins
are on power and which not and whether some capatitors/resitors are
broken. I gave up the idea since it is really difficult to get access
to the inside of the workstation while it is running :(

> Give that box a big, tight hug.  That usually fixes it *).

This one is a new idea, will try it ;)

> *) Make sure nobody can see you when you are doing this.  More than
>  once I have been accused of humping my PA-RISC hardware while
>  performing this delicate repair procedure.

Unfortunately I tried all other good ideas/hints of you before,

Thanks nonetheless
    Max



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Hello

On 22-juin-03, you wrote:

| > On Sul, 2003-06-22 at 09:17, baddy@free.fr wrote:
| >>    - this request is not see at all by the B132L which already have
| >> the
| >>    mac address of the host in his mac address table (I think it is
| >> because
| >>    the B132L keep it from a previous trafic).
| > 
| > Sounds like you have a buggy bridge somewhere. Some vendors can't read
| > the specs and drop rather than flood unknown mac addresses. This breaks
| > stuff just as you describe.
| > 

Thanks Alan it was effectively my Cabletron switch the faulty device. I
plugged
every host on a 3Com switch and everythink look good.

The most strange is that this switch was working perfectly for one year and
the
B132L was the only host affected by the bug (I never encountered this bug
with
the other host).
-------
Bad Max
========
Amiga User
GNU User
WWW: perso.club-internet.fr/badmax



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On Maw, 2003-06-24 at 21:15, Bad Max wrote:
> The most strange is that this switch was working perfectly for one year and
> the
> B132L was the only host affected by the bug (I never encountered this bug
> with
> the other host).

Most boxes have regular traffic - samba broadcasts, snmp probes, ipx
rip/sap whatever. 


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On Tuesday, Jun 24, 2003, at 13:34 US/Eastern, Martin K. Petersen wrote:
>
> Give that box a big, tight hug.  That usually fixes it *).
>
> *) Make sure nobody can see you when you are doing this.  More than
>  once I have been accused of humping my PA-RISC hardware while
>  performing this delicate repair procedure.
>

ROTFLMAO!! After the last few days I've had, I needed that laugh. 
Though, I never expected to get it here. :-)  I remember getting our 
early-production model C200 back in '96 (I think). It took a while 
before everything was properly "seated". And what fun we had installing 
the FX-6 texture board when it finally arrived. That card was a very 
tight fit to begin with.



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Hello

On 24-juin-03, you wrote:

| > On Maw, 2003-06-24 at 21:15, Bad Max wrote:
| >> The most strange is that this switch was working perfectly for one year
| >> and the
| >> B132L was the only host affected by the bug (I never encountered this
| >> bug with
| >> the other host).
| > 
| > Most boxes have regular traffic - samba broadcasts, snmp probes, ipx
| > rip/sap whatever. 
| > 

The B132L is a PDC/DNS/DHCP/Router on my network. The other host are
mostly clients, no ipx, no snmp. DHCP requests were accepted and the
B132L was reachable until ARP timeout. 

The only thing I don't understand is why the B132L was the only host
affected by the trouble.
-------
Bad Max
========
Amiga User
GNU User
WWW: perso.club-internet.fr/badmax



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Hi Grant,

> BTW, my comment was actually intended for other parts of the code I
> was digging though, not the just lack of pci_enable_device().

Do you know where can I get more info on what have todo (naturaly only pci_enable_device()
doesn't help)?

Thanks,
    Joel



---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be




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    Hello.

    I have a C-180 Visualize RISC system with a (GSC) "A4070" video card 
with a "A4747" daughter card.

    The system is happily running with Gentoo Linux, and the swap space 
hasn't even been touched...

    I would like to get this thing into doing something more than 
heating my bedroom, so I am wondering if anyone has a XF86Config file 
that I could get the video driver settings for the above card configuration.

    I have tried "fbdev" but even at Depth=8 I have not been able to get 
xfree running.

    I searched through the old mail archives but I couldn't find much 
more than the "fbdev" setup.

    When I do the  command line from one of the mail list messages i get 
the following.

vorlon portage # dmesg | grep stifb
fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio: 0xf8100000
fb1: stifb 1280x1024-8 frame buffer device, id: 2d08c0a7, mmio: 0xfa100000

    I'm not sure what this means, but I think the "-8" and the "-32" is 
the depth.

    The system RAM is fully populated with 768Megs

    If you require any more information, please just ask ;o)



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On Wed, Jun 25, 2003 at 11:43:51AM +0200, Joel Soete wrote:
> Do you know where can I get more info on what have todo
> (naturaly only pci_enable_device() doesn't help)?

Track down where in the code the MMIO read fails.
If it's crashing *after* pci_enable_device() is called,
then need to make sure the driver isn't directly reading
PCI BARs and is using struct resources in the pci_dev.

grant


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ICE in binutils-2.14.90.0.4 building gcc HEAD 20030625, while linking
the shared libstdc++ library:

[...]
-Wl,-soname -Wl,libstdc++.so.6 -o .libs/libstdc++.so.6.0.0
/usr/bin/ld: BFD 2.14.90.0.4 20030523 Debian GNU/Linux internal error, aborting at ../../bfd/elf32-hppa.c line 3864 in elf32_hppa_relocate_section

/usr/bin/ld: Please report this bug.

collect2: ld returned 1 exit status


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Subject: Re: [parisc-linux] binutils ICE while building todays gcc HEAD on hppa-linux
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To: doko@cs.tu-berlin.de (Matthias Klose)
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Hi,

> ICE in binutils-2.14.90.0.4 building gcc HEAD 20030625, while linking
> the shared libstdc++ library:
> 
> [...]
> -Wl,-soname -Wl,libstdc++.so.6 -o .libs/libstdc++.so.6.0.0
> /usr/bin/ld: BFD 2.14.90.0.4 20030523 Debian GNU/Linux internal error, aborting at ../../bfd/elf32-hppa.c line 3864 in elf32_hppa_relocate_section

The error was introduced by this patch:

2003-06-23  Jakub Jelinek  <jakub@redhat.com>

        * method.c (thunk_labelno): New variable.
	(make_alias_for_thunk): New function.
	(use_thunk): Use it if defined ASM_OUTPUT_DEF.  Put the thunk
	into the same section as the function it is calling.
	Include gt-cp-method.h.
	* Make-lang.in (gt-cp-method.h): Depend on s-gtype.
	(cp/method.o): Depend on gt-cp-method.h.
	* config-lang.in (gtfiles): Add $(srcdir)/cp/method.c.

This patch changes the symbol used for the jump from a thunk from
a global symbol to a local symbol.  We have been using a function
descriptor for the jump on hppa-linux and hppa-hpux.  The GNU linker
dies when it hits a function descriptor with a relocation to a local
symbol in a linkonce section that is not output (i.e., we are trying
to generate a relocation for a symbol that no longer exists).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Alan Modra <amodra@bigpond.net.au>
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Subject: [parisc-linux] Re: binutils ICE while building todays gcc HEAD on hppa-linux
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On Wed, Jun 25, 2003 at 11:26:59PM +0200, Matthias Klose wrote:
> ICE in binutils-2.14.90.0.4 building gcc HEAD 20030625, while linking
> the shared libstdc++ library:
> 
> [...]
> -Wl,-soname -Wl,libstdc++.so.6 -o .libs/libstdc++.so.6.0.0
> /usr/bin/ld: BFD 2.14.90.0.4 20030523 Debian GNU/Linux internal error, aborting at ../../bfd/elf32-hppa.c line 3864 in elf32_hppa_relocate_section

Please run the ld command under gdb, and let me know the results of
"p *h".  Note that you may need to recompile elf32-hppa.c at -O1 to
get useful debug info.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre


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Subject: Re: [parisc-linux] Re: binutils ICE while building todays gcc HEAD on hppa-linux
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> On Wed, Jun 25, 2003 at 11:26:59PM +0200, Matthias Klose wrote:
> > ICE in binutils-2.14.90.0.4 building gcc HEAD 20030625, while linking
> > the shared libstdc++ library:
> > 
> > [...]
> > -Wl,-soname -Wl,libstdc++.so.6 -o .libs/libstdc++.so.6.0.0
> > /usr/bin/ld: BFD 2.14.90.0.4 20030523 Debian GNU/Linux internal error, aborting at ../../bfd/elf32-hppa.c line 3864 in elf32_hppa_relocate_section
> 
> Please run the ld command under gdb, and let me know the results of
> "p *h".  Note that you may need to recompile elf32-hppa.c at -O1 to
> get useful debug info.

Oh, I had already done that yesterday.  h is NULL.  The enclosed patch
avoids the problem but a better fix would be to somehow remove local
PLABEL relocations for symbols in linkonce sections.  In this particular
case, we have a linkonce section in io-inst.o that duplicates a pervious
one in fstream-inst.o.

If Jakub comes up with a patch to output the thunks for a function before
the function instead after the function, I will change the thunk generation
in gcc to use a simple pc-relative branch to the function.  This will
avoid the problem.  However, at the moment, we are not guaranteed that
a pc-relative branch has sufficient range to reach the function.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: elf32-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
retrieving revision 1.100
diff -u -3 -p -r1.100 elf32-hppa.c
--- elf32-hppa.c	25 Jun 2003 06:40:21 -0000	1.100
+++ elf32-hppa.c	26 Jun 2003 01:15:09 -0000
@@ -3807,6 +3807,9 @@ elf32_hppa_relocate_section (output_bfd,
 			  do_plt = 1;
 			}
 		    }
+
+	          if (off >= (bfd_vma) -2)
+		    break;
 		}
 	      else
 		{
@@ -3828,6 +3831,12 @@ elf32_hppa_relocate_section (output_bfd,
 		      local_plt_offsets[r_symndx] |= 1;
 		      do_plt = 1;
 		    }
+
+		  /* ???: Ignore PLABEL relocations for local symbols
+		     with an undefined offset.  This can happen if the
+		     symbol was in a linkonce section.  */
+	          if (off >= (bfd_vma) -2)
+		    break;
 		}
 
 	      if (do_plt)
@@ -3859,9 +3868,6 @@ elf32_hppa_relocate_section (output_bfd,
 				  htab->splt->contents + off + 4);
 		    }
 		}

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> @@ -3807,6 +3807,9 @@ elf32_hppa_relocate_section (output_bfd,
>  			  do_plt = 1;
>  			}
>  		    }
> +
> +	          if (off >= (bfd_vma) -2)
> +		    break;

Oops, we should abort here.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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2.4.21 allocates sysctl number 56 to something else, so i had to renumber
the hppa sysctls to 57 and 58.  if linus didn't keep dropping this patch,
we'd have stable numbers ...

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi Willy,

>
> 2.4.21 allocates sysctl number 56 to something else, so i had to renumber
> the hppa sysctls to 57 and 58.
>
Sorry for my ignorance but how much those number are important (as afaik
they are named by #define)?

Thanks in advance,
    Joel


---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be




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On Thu, Jun 26, 2003 at 07:03:40PM +0200, Joel Soete wrote:
> Hi Willy,
> 
> >
> > 2.4.21 allocates sysctl number 56 to something else, so i had to renumber
> > the hppa sysctls to 57 and 58.
> >
> Sorry for my ignorance but how much those number are important (as afaik
> they are named by #define)?

they're irrelevant if you use them via /proc/sys to access the feature.
they're really important if you use them via sysctl(3).

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] warning: minor abi change
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> they're irrelevant if you use them via /proc/sys to access the feature.
> they're really important if you use them via sysctl(3).

fwiw we've already renumbered them at least twice in the past, and no
one has screamed yet :P

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> they're irrelevant if you use them via /proc/sys to access the feature.
> they're really important if you use them via sysctl(3).

The relevant good pratice would be to use named const as ERR :-)

But mainly, as promise I co 2.4.21-p0 and copare with my merge and notice
some requested add patch:

diff -NaurX dontdiff linux-2.4.21-pa0/drivers/ide/pci/ns87415.c linux-2.4.21-rc8-pa35/drivers/ide/pci/ns87415.c
--- linux-2.4.21-pa0/drivers/ide/pci/ns87415.c	2003-06-26 17:07:20.000000000
+0200
+++ linux-2.4.21-rc8-pa35/drivers/ide/pci/ns87415.c	2003-02-28 18:43:45.000000000
+0100
@@ -27,6 +27,10 @@
 
 #include "ns87415.h"
 
+#if defined(__hppa__) && defined(CONFIG_SUPERIO)
+#include <asm/superio.h>
+#endif
+
 static unsigned int ns87415_count = 0, ns87415_control[MAX_HWIFS] = { 0
};
 
 /*
@@ -200,7 +204,11 @@
 	}
 
 	if (!using_inta)
+#if defined(__hppa__) && defined(CONFIG_SUPERIO)
+		hwif->irq = superio_get_ide_irq();	/* legacy mode */
+#else
 		hwif->irq = hwif->channel ? 15 : 14;	/* legacy mode */
+#endif
 	else if (!hwif->irq && hwif->mate && hwif->mate->irq)
 		hwif->irq = hwif->mate->irq;	/* share IRQ with mate */
 
diff -NaurX dontdiff linux-2.4.21-pa0/include/asm-parisc/system_irqsave.h
linux-2.4.21-rc8-pa35/include/asm-parisc/system_irqsave.h
--- linux-2.4.21-pa0/include/asm-parisc/system_irqsave.h	2003-06-27 07:49:56.000000000
+0200
+++ linux-2.4.21-rc8-pa35/include/asm-parisc/system_irqsave.h	2003-06-27
15:52:10.000000000 +0200
@@ -7,6 +7,9 @@
 #define __cli()	__asm__ __volatile__("rsm %0,%%r0\n" : : "i" (PSW_I) : "memory"
)
 #define __sti()	__asm__ __volatile__("ssm %0,%%r0\n" : : "i" (PSW_I) : "memory"
)
 
+#define __save_and_cli(x)  do { __save_flags(x); __cli(); } while(0);
+#define __save_and_sti(x)  do { __save_flags(x); __sti(); } while(0);
+
 #define local_irq_save(x) \
 	__asm__ __volatile__("rsm %1,%0" : "=r" (x) :"i" (PSW_I) : "memory" )
 #define local_irq_restore(x) \
=================================================================================
btw I also test following stuff which seems to works too:
diff -NaurX dontdiff linux-2.4.21-pa0/include/asm-parisc/system_irqsave.h.mine
linux-2.4.21-rc8-pa35/include/asm-parisc/system_irqsave.h.mine
--- linux-2.4.21-pa0/include/asm-parisc/system_irqsave.h.mine	1970-01-01
01:00:00.000000000 +0100
+++ linux-2.4.21-rc8-pa35/include/asm-parisc/system_irqsave.h.mine	2003-06-27
15:50:11.000000000 +0200
@@ -0,0 +1,21 @@
+#ifndef __PARISC_SYSTEM_IRQSAVE_H
+#define __PARISC_SYSTEM_IRQSAVE_H
+
+/* interrupt control */
+#define __save_flags(x)	__asm__ __volatile__("ssm 0, %0" : "=r" (x) : :
"memory")
+#define __restore_flags(x) __asm__ __volatile__("mtsm %0" : : "r" (x) :
"memory")
+#define __cli()	__asm__ __volatile__("rsm %0,%%r0\n" : : "i" (PSW_I) : "memory"
)
+#define __sti()	__asm__ __volatile__("ssm %0,%%r0\n" : : "i" (PSW_I) : "memory"
)
+
+#define __save_and_cli(x)  do { __save_flags(x); __cli(); } while(0);
+#define __save_and_sti(x)  do { __save_flags(x); __sti(); } while(0);
+
+/* For spinlocks etc */
+#define local_irq_save(x)  __save_and_cli(x)
+#define local_irq_set(x)   __save_and_sti(x)
+
+#define local_irq_restore(x) __restore_flags(x)
+#define local_irq_disable() __cli()
+#define local_irq_enable()  __sti()
+
+#endif /* __PARISC_SYSTEM_IRQSAVE_H */
=================================================================================

And also some various stuff as:

- a clean up (just put in comment for remind):

diff -NaurX dontdiff linux-2.4.21-pa0/arch/parisc/kernel/parisc_ksyms.c linux-2.4.21-rc8-pa35/arch/parisc/kernel/parisc_ksyms.c
--- linux-2.4.21-pa0/arch/parisc/kernel/parisc_ksyms.c	2003-03-17 08:14:55.000000000
+0100
+++ linux-2.4.21-rc8-pa35/arch/parisc/kernel/parisc_ksyms.c	2003-05-23 13:31:18.000000000
+0200
@@ -167,7 +167,7 @@
 extern void $$remI(void);
 extern void $$remU(void);
 extern void $$mulI(void);
-extern void $$mulU(void);
+/* extern void $$mulU(void); */
 extern void $$divU_3(void);
 extern void $$divU_5(void);
 extern void $$divU_6(void);
@@ -193,7 +193,7 @@
 EXPORT_SYMBOL_NOVERS($$remU);
 EXPORT_SYMBOL_NOVERS($$mulI);
 #ifndef __LP64__
-EXPORT_SYMBOL_NOVERS($$mulU);
+/* EXPORT_SYMBOL_NOVERS($$mulU); */
 #endif
 EXPORT_SYMBOL_NOVERS($$divU_3);
 EXPORT_SYMBOL_NOVERS($$divU_5);
diff -NaurX dontdiff linux-2.4.21-pa0/arch/parisc/kernel/processor.c linux-2.4.21-rc8-pa35/arch/parisc/kernel/processor.c
--- linux-2.4.21-pa0/arch/parisc/kernel/processor.c	2003-06-27 07:35:56.000000000
+0200
+++ linux-2.4.21-rc8-pa35/arch/parisc/kernel/processor.c	2002-12-20 15:56:19.000000000
+0100
@@ -77,8 +77,6 @@
 	unsigned long txn_addr;
 	unsigned long cpuid;
 	struct cpuinfo_parisc *p;
-	extern struct irq_region_ops cpu_irq_ops; /* arch/parisc...irq.c */
-	extern struct irqaction cpu_irq_actions[]; /* arch/parisc...irq.c */
 
 #ifndef CONFIG_SMP
 	if (boot_cpu_data.cpu_count > 0) {

- a small typo :-)

diff -NaurX dontdiff linux-2.4.21-pa0/drivers/char/genrtc.c linux-2.4.21-rc8-pa35/drivers/char/genrtc.c
--- linux-2.4.21-pa0/drivers/char/genrtc.c	2003-01-13 08:38:36.000000000
+0100
+++ linux-2.4.21-rc8-pa35/drivers/char/genrtc.c	2003-05-08 22:10:52.000000000
+0200
@@ -99,7 +99,7 @@
 static void gen_rtc_interrupt(unsigned long arg);
 
 /*
- * Routine to poll RTC seconds field for change as often as posible,
+ * Routine to poll RTC seconds field for change as often as possible,
  * after first RTC_UIE use timer to reduce polling
  */
 static void genrtc_troutine(void *data)

- a work-around for gcc-3.3 awaiting final fix:

--- linux-2.4.21-pa0/drivers/net/tun.c	2002-08-07 07:50:51.000000000 +0200
+++ linux-2.4.21-rc8-pa35/drivers/net/tun.c	2003-06-27 12:34:17.000000000
+0200
@@ -359,7 +359,9 @@
 		/* Device exist */
 		tun = dev->priv;
 
-		if (dev->init != tun_net_init || tun->attached)
+                /* (void*) is a temporary w-a because of
+                   hppa gcc-3.3 __canonicalize_funcptr_for_compare() */
+		if (dev->init != (void*)tun_net_init || tun->attached)
 			return -EBUSY;
 
 		/* Check permissions */

- Grant what do you think about this:

diff -NaurX dontdiff linux-2.4.21-pa0/drivers/sound/ad1889.c linux-2.4.21-rc8-pa35/drivers/sound/ad1889.c
--- linux-2.4.21-pa0/drivers/sound/ad1889.c	2003-06-27 07:46:37.000000000
+0200
+++ linux-2.4.21-rc8-pa35/drivers/sound/ad1889.c	2003-05-08 22:43:44.000000000
+0200
@@ -24,7 +24,7 @@
 <jsm> tausq: Anyway, to set up sample rates for D to A, you just use the
sample rate on the codec. For A to D, you need to set the codec always to
48K (using the split sample rate feature on the codec) and then set the resampler
on the AD1889 to the sample rate you want.
 <jsm> Also, when changing the sample rate on the codec you need to power
it down and re power it up for the change to take effect!
  *
- * $Id: ad1889.c,v 1.2 2002/10/16 04:14:12 grundler Exp $
+ * $Id: ad1889.c,v 1.3 2002/10/19 21:31:44 grundler Exp $
  */
 #include <linux/config.h>
 #include <linux/module.h>
@@ -816,7 +816,7 @@
 	ad1889_dev_t *dev = ac97->private_data;
 
 	//DBG("Writing 0x%x to 0x%lx\n", val, dev->regbase + 0x100 + reg);
-	return AD1889_WRITEW(dev, 0x100 + reg, val);
+	AD1889_WRITEW(dev, 0x100 + reg, val);
 }
 
 static u16 ad1889_codec_read(struct ac97_codec *ac97, u8 reg)
@@ -1059,7 +1059,7 @@
 	name:		DEVNAME,
 	id_table:	ad1889_id_tbl,
 	probe:		ad1889_probe,
-	remove:		ad1889_remove,
+	remove:		__devexit_p(ad1889_remove),
 };
 
 static int __init ad1889_init_module(void)

- another cleanup (don't remember why :-?)

diff -NaurX dontdiff linux-2.4.21-pa0/include/asm-parisc/ide.h linux-2.4.21-rc8-pa35/include/asm-parisc/ide.h
--- linux-2.4.21-pa0/include/asm-parisc/ide.h	2003-06-27 07:49:55.000000000
+0200
+++ linux-2.4.21-rc8-pa35/include/asm-parisc/ide.h	2003-06-05 16:55:22.000000000
+0200
@@ -20,8 +20,6 @@
 #define MAX_HWIFS	2
 #endif
 
-#define ide__sti()      __sti()
-
 static __inline__ int ide_default_irq(ide_ioreg_t base)
 {
 	switch (base) {

- and last (please see comments below, thanks)

diff -NaurX dontdiff linux-2.4.21-pa0/include/asm-parisc/uaccess.h linux-2.4.21-rc8-pa35/include/asm-parisc/uaccess.h
--- linux-2.4.21-pa0/include/asm-parisc/uaccess.h	2002-10-28 08:05:18.000000000
+0100
+++ linux-2.4.21-rc8-pa35/include/asm-parisc/uaccess.h	2003-06-11 14:39:12.000000000
+0200
@@ -28,6 +28,11 @@
  * that put_user is the same as __put_user, etc.
  */
 
+extern int __get_kernel_bad(void);
+extern int __get_user_bad(void);
+extern int __put_kernel_bad(void);
+extern int __put_user_bad(void);
+
 #define access_ok(type,addr,size)   (1)
 #define verify_area(type,addr,size) (0)
 
@@ -35,8 +40,12 @@
 #define get_user __get_user
 
 #if BITS_PER_LONG == 32
-#define LDD_KERNEL(ptr)		BUG()
-#define LDD_USER(ptr)		BUG()
+#define LDD_KERNEL(ptr)		__get_kernel_bad();
+#define LDD_USER(ptr)		__get_user_bad();
+/*
+#define STD_KERNEL(x, ptr)	__put_kernel_bad();
+#define STD_USER(x, ptr)	__put_user_bad();
+*/
 #define STD_KERNEL(x, ptr) __put_kernel_asm64(x,ptr)
 #define STD_USER(x, ptr) __put_user_asm64(x,ptr)
 #else
@@ -75,7 +84,7 @@
 	    case 2: __get_kernel_asm("ldh",ptr); break; \
 	    case 4: __get_kernel_asm("ldw",ptr); break; \
 	    case 8: LDD_KERNEL(ptr); break;		\
-	    default: BUG(); break;                      \
+	    default: __get_kernel_bad(); break;         \
 	    }                                           \
 	}                                               \
 	else {                                          \
@@ -84,7 +93,7 @@
 	    case 2: __get_user_asm("ldh",ptr); break;   \
 	    case 4: __get_user_asm("ldw",ptr); break;   \
 	    case 8: LDD_USER(ptr);  break;		\
-	    default: BUG(); break;                      \
+	    default: __get_user_bad(); break;           \
 	    }                                           \
 	}                                               \
 							\
@@ -144,7 +153,7 @@
 	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
 	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
 	    case 8: STD_KERNEL(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: __put_kernel_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 	else {                                                  \
@@ -153,7 +162,7 @@
 	    case 2: __put_user_asm("sth",x,ptr); break;         \
 	    case 4: __put_user_asm("stw",x,ptr); break;         \
 	    case 8: STD_USER(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: __put_user_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 								\
@@ -211,45 +220,36 @@
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
 
-static inline void __put_kernel_asm64(u64 x, void *ptr)
-{
-	u32 hi = x>>32;
-	u32 lo = x&0xffffffff;
-	__asm__ __volatile__ (
-		"\n1:\tstw %1,0(%0)\n"
-		"\n2:\tstw %2,4(%0)\n"
-		"3:\n"
-		"\t.section __ex_table,\"a\"\n"
-		 "\t.word\t1b\n"
-		 "\t.word\t(3b-1b)+1\n"
-		 "\t.word\t2b\n"
-		 "\t.word\t(3b-2b)+1\n"
-		 "\t.previous"
-		: : "r"(ptr), "r"(hi), "r"(lo));
-
-}
-
-static inline void __put_user_asm64(u64 x, void *ptr)
-{
-	u32 hi = x>>32;
-	u32 lo = x&0xffffffff;
-	__asm__ __volatile__ (
-		"\n1:\tstw %1,0(%%sr3,%0)\n"
-		"\n2:\tstw %2,4(%%sr3,%0)\n"
-		"3:\n"
-		"\t.section __ex_table,\"a\"\n"
-		 "\t.word\t1b\n"
-		 "\t.word\t(3b-1b)+1\n"
-		 "\t.word\t2b\n"
-		 "\t.word\t(3b-2b)+1\n"
-		 "\t.previous"
-		: : "r"(ptr), "r"(hi), "r"(lo));
+#define __put_kernel_asm64(x, ptr)		\
+	__asm__ __volatile__ (			\
+		"\n1:\tstw\t%2,0(%1)\n"		\
+		"2:\tstw\t%R2,4(%1)\n"		\
+		"3:\n"				\
+		"\t.section __ex_table,\"a\"\n"	\
+		 "\t.word\t1b\n"		\
+		 "\t.word\t(3b-1b)+1\n"		\
+		 "\t.word\t2b\n"		\
+		 "\t.word\t(3b-2b)+1\n"		\
+		 "\t.previous"			\
+		: "=r"(__pu_err)		\
+		: "r"(ptr), "r"(x), "0"(__pu_err))
 
-}
+#define __put_user_asm64(x, ptr)		\
+	__asm__ __volatile__ (			\
+		"\n1:\tstw\t%2,0(%%sr3,%1)\n"	\
+		"2:\tstw\t%R2,4(%%sr3,%1)\n"	\
+		"3:\n"				\
+		"\t.section __ex_table,\"a\"\n"	\
+		 "\t.word\t1b\n"		\
+		 "\t.word\t(3b-1b)+1\n"		\
+		 "\t.word\t2b\n"		\
+		 "\t.word\t(3b-2b)+1\n"		\
+		 "\t.previous"			\
+		: "=r"(__pu_err)		\
+		: "r"(ptr), "r"(x), "0"(__pu_err))
 
 #endif
 
-
 /*
  * Complex access routines -- external declarations
  */

================================================================================
Comments:

- The first changes (xxx_bad(void)) was agreed earlier by Randolph but never
comited (?). The goal is to breack the build of the kernel and so avoid the
risk to boot one (as I do when I test evms or [xj]fs which required __put_XXX_asm64)
which can unexpected damages

- The second replace Randolph __put_XXX_asm64(); it does the same job and
avoid severall warning at compile time as:
[...]
binfmt_elf.c:225: warning: passing arg 1 of `__put_kernel_asm64' makes integer
from pointer without a cast
binfmt_elf.c:225: warning: passing arg 1 of `__put_user_asm64' makes integer
from pointer without a cast
binfmt_elf.c:226: warning: passing arg 1 of `__put_kernel_asm64' makes integer
from pointer without a cast
binfmt_elf.c:226: warning: passing arg 1 of `__put_user_asm64' makes integer
from pointer without a cast
binfmt_elf.c:236: warning: passing arg 1 of `__put_kernel_asm64' makes integer
from pointer without a cast
binfmt_elf.c:236: warning: passing arg 1 of `__put_user_asm64' makes integer
from pointer without a cast
[...]

Thanks in advance for your attention,
    Joel




---------------------------------
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Subject: Re: [parisc-linux] warning: minor abi change
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Too bad in 2.4.22-pre2:

diff -urN linux-2.4.22-pre1/include/linux/sysctl.h linux-2.4.22-pre2/include/linux/sysctl.h
--- linux-2.4.22-pre1/include/linux/sysctl.h	2003-06-13 07:51:39.000000000
-0700
+++ linux-2.4.22-pre2/include/linux/sysctl.h	2003-06-26 15:02:23.000000000
-0700
@@ -125,6 +125,7 @@
 	KERN_TAINTED=53,	/* int: various kernel tainted flags */
 	KERN_CADPID=54,		/* int: PID of the process to notify on CAD */
  	KERN_CORE_PATTERN=56,	/* string: pattern for core-files */
+	KERN_PPC_L3CR=57,       /* l3cr register on PPC */
 };
 
 
which interfere with your:
 	KERN_HPPA_PWRSW=57,	/* int: hppa soft-power enable */
 	KERN_HPPA_UNALIGNED=58,	/* int: hppa unaligned-trap enable */
};

What to do?

Thanks,
    Joel


---------------------------------
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] warning: minor abi change
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Joel,
I mistakenly replied only to you on my previous mail.
Can you please forward my previous reply to parisc-linux mailing list
or send a copy back to me - I'll post it to the list then.

On Fri, Jun 27, 2003 at 06:14:58PM +0200, Joel Soete wrote:
> Hi Grant,
> 
> > diff -NaurX dontdiff linux-2.4.21-pa0/drivers/ide/pci/ns87415.c linux-2.4.21-rc8-pa35/drivers/ide/pci/ns87415.c
> 
> > This is for c3000/j5000/et al workstations.
> > NS "SuckyIO" multifunction chip includes ns87415 compatible IDE controller.
> 
> ...
> >> +#define __save_and_cli(x)  do { __save_flags(x); __cli(); } while(0);
> >> +#define __save_and_sti(x)  do { __save_flags(x); __sti(); } while(0);
> >> +
> 
> > This is something different - but I'd think this is needed too.
> > Make sure this isn't a merge error (ie see if it's defined elsewhere).
> 
> I need it to make work my ide cdrom onto my b2k (I grab this stuff
> from another platform)

ah ok.

The IDE CDROM are pretty standard devices. Note the DMA does NOT work.
And even with PIO mode, it just barely works - enough to do an install.
So don't use it too much unless you can afford to crash your box.
At least that was my experience with 2.4.19 or so.

> The following stuff is just a variant (just for info)

ok.

...
> > If they are no longer referenced, that's fine.
> hmm in fact the last ref of 'cpu_irq_actions' is in arch/parisc/kernel/processor.c
> and now embrace by #if 0 [...] #endif
> (I will see to cleanup too)
> ...

ok

> 
> > I need the above changes in a format that I apply with "patch -p1 < diff"
> 
> Here is attached Mydiff2421.txt

ok. let me apply local and try it out first. If all is well, should see
something by this weekend.

thanks,
grant


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On Gwe, 2003-06-27 at 17:21, Joel Soete wrote:
> which interfere with your:
>  	KERN_HPPA_PWRSW=57,	/* int: hppa soft-power enable */
>  	KERN_HPPA_UNALIGNED=58,	/* int: hppa unaligned-trap enable */
> };
> 
> What to do?

Get the HP ones into 2.5 then they are fixed "right" values



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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Fix for local symbols appearing in CONFIG_KALLSYMS traces
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One of the problems with KALLSYMS on parisc is that our toolchain
generates lots of local symbols with names like .LNNN and .LCNNN which
are multiply defined and thus spoil symbolic backtraces.

I suspect the true fix is probably to force the parisc binutils to give
them empty names when it emits elf object, but until binutils does this,
the attached patch eliminates them from the kernel object and from
loaded objects.

The patch is fairly awful, particularly the messing with the contents of
a pointer to a constant area in module_finalize, but it does eliminate
the problem.

Would this be OK to people until binutils sorts out the problem for us?

James


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# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher=
.
# This patch includes the following deltas:
#	           ChangeSet	1.1466  -> 1.1467=20
#	arch/parisc/Makefile	1.20    -> 1.21  =20
#	arch/parisc/kernel/module.c	1.5     -> 1.6   =20
#	               (new)	        -> 1.1     arch/parisc/nm=20
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 03/06/27	jejb@raven.il.steeleye.com	1.1467
# Fix parisc local symbol problem with CONFIG_KALLSYMS
# --------------------------------------------
#
diff -Nru a/arch/parisc/Makefile b/arch/parisc/Makefile
--- a/arch/parisc/Makefile	Fri Jun 27 22:29:20 2003
+++ b/arch/parisc/Makefile	Fri Jun 27 22:29:20 2003
@@ -16,7 +16,7 @@
 # Modified for PA-RISC Linux by Paul Lahaie, Alex deVries,=20
 # Mike Shaver, Helge Deller and Martin K. Petersen
 #
-
+NM		=3D sh arch/parisc/nm
 ifdef CONFIG_PARISC64
 CROSS_COMPILE	:=3D hppa64-linux-
 UTS_MACHINE	:=3D parisc64
diff -Nru a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
--- a/arch/parisc/kernel/module.c	Fri Jun 27 22:29:20 2003
+++ b/arch/parisc/kernel/module.c	Fri Jun 27 22:29:20 2003
@@ -671,6 +671,11 @@
 		    const Elf_Shdr *sechdrs,
 		    struct module *me)
 {
+	int i;
+	unsigned long nsyms;
+	const char *strtab =3D NULL;
+	Elf_Sym *newptr, *oldptr;
+	Elf_Shdr *symhdr =3D NULL;
 #ifdef DEBUG
 	struct fdesc_entry *entry;
 	u32 *addr;
@@ -690,7 +695,49 @@
 	       me->arch.got_count, me->arch.got_max,
 	       me->arch.fdesc_count, me->arch.fdesc_max);
 #endif
-	=09
+
+	/* haven't filled in me->symtab yet, so have to find it
+	 * ourselves */
+	for (i =3D 1; i < hdr->e_shnum; i++) {
+		if(sechdrs[i].sh_type =3D=3D SHT_SYMTAB
+		   && (sechdrs[i].sh_type & SHF_ALLOC)) {
+			int strindex =3D sechdrs[i].sh_link;
+			/* FIXME: AWFUL HACK
+			 * The cast is to drop the const from
+			 * the sechdrs pointer */
+			symhdr =3D (Elf_Shdr *)&sechdrs[i];
+			strtab =3D (char *)sechdrs[strindex].sh_addr;
+			break;
+		}
+	}
+
+	printk("module %s: strtab %p, symhdr %p\n",
+	       me->name, strtab, symhdr);
+=09
+	/* no symbol table */
+	if(symhdr =3D=3D NULL)
+		return 0;
+
+	oldptr =3D (void *)symhdr->sh_addr;
+	newptr =3D oldptr + 1;	/* we start counting at 1 */
+	nsyms =3D symhdr->sh_size / sizeof(Elf_Sym);
+	printk("OLD num_symtab %lu\n", nsyms);
+
+	for (i =3D 1; i < nsyms; i++) {
+		oldptr++;	/* note, count starts at 1 so preincrement */
+		if(strncmp(strtab + oldptr->st_name,
+			      ".L", 2) =3D=3D 0)
+			continue;
+
+		if(newptr !=3D oldptr)
+			*newptr++ =3D *oldptr;
+		else
+			newptr++;
+
+	}
+	nsyms =3D newptr - (Elf_Sym *)symhdr->sh_addr;
+	printk("NEW num_symtab %lu\n", nsyms);
+	symhdr->sh_size =3D nsyms * sizeof(Elf_Sym);
 	return 0;
 }
=20
diff -Nru a/arch/parisc/nm b/arch/parisc/nm
--- /dev/null	Wed Dec 31 16:00:00 1969
+++ b/arch/parisc/nm	Fri Jun 27 22:29:20 2003
@@ -0,0 +1,6 @@
+#!/bin/sh
+##
+# Hack to have an nm which removes the local symbols.  We also rely
+# on this nm being hidden out of the ordinarily executable path
+##
+${CROSS_COMPILE}nm $* | grep -v '.LC*[0-9]*$'

--=-mFDCIPy6JwGD91p7aSFq--



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On Wednesday, Jun 25, 2003, at 08:57 US/Eastern, Rod Smart wrote:

>    I have a C-180 Visualize RISC system with a (GSC) "A4070" video  
> card with a "A4747" daughter card.

>    I would like to get this thing into doing something more than  
> heating my bedroom, so I am wondering if anyone has a XF86Config file  
> that I could get the video driver settings for the above card  
> configuration.
>
>    I have tried "fbdev" but even at Depth=8 I have not been able to  
> get xfree running.

That should work provided you have a "1280x1024" mode defined and set  
the "fbdev" option to "/dev/fb1". But, I suppose you want fb0, right?

>
>    I searched through the old mail archives but I couldn't find much  
> more than the "fbdev" setup.

This thread should help:

http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/ 
019064.html

>    When I do the  command line from one of the mail list messages i  
> get the following.
>
> vorlon portage # dmesg | grep stifb
> fb0: stifb 1280x1024-32 frame buffer device, id: 2bcb015a, mmio:  
> 0xf8100000
> fb1: stifb 1280x1024-8 frame buffer device, id: 2d08c0a7, mmio:  
> 0xfa100000
>
>    I'm not sure what this means, but I think the "-8" and the "-32" is  
> the depth.

That is correct, and the "1280x1024" corresponds to the resolution as  
specified in the PDC. IIRC, the A4070-* devices (HCRX family) only  
worked at this resolution, but might be switchable between 75hz VESA  
(separate H/V sync) and 72hz (sync-on-green). If your monitor is not  
receiving a sync signal use a serial console (power-on with the PS/2  
keyboard detached, 9600/8/n/1) and try the "co mo" command to view the  
video setting. "co mo list" should give you a list of options available  
for each of your two devices.

BTW, you might want to grab copies of the service manual & owner's  
guide for future reference:

http://h20000.www2.hp.com/bizsupport/TechSupport/ 
DocumentIndex.jsp?contentType=SupportManual&docIndexId=120929&locale=en_ 
US&prodTypeId=12454&prodSeriesId=44435

-chuck



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-------- Original Message --------
Subject: 	Re: [parisc-linux] warning: minor abi change
Date: 	Fri, 27 Jun 2003 09:15:46 -0600
From: 	Grant Grundler <grundler@parisc-linux.org>
To: 	Joel Soete <jsoe0708@tiscali.be>
References: 	<20030626170628.GO451@parcelfarce.linux.theplanet.co.uk> 
<3ED70CF10000AD97@ocpmta2.freegates.net>



On Fri, Jun 27, 2003 at 04:41:13PM +0200, Joel Soete wrote:
> But mainly, as promise I co 2.4.21-p0 and copare with my merge and notice
> some requested add patch:
> diff -NaurX dontdiff linux-2.4.21-pa0/drivers/ide/pci/ns87415.c linux-2.4.21-rc8-pa35/drivers/ide/pci/ns87415.c

This is for c3000/j5000/et al workstations.
NS "SuckyIO" multifunction chip includes ns87415 compatible IDE controller.

...
> +#define __save_and_cli(x)  do { __save_flags(x); __cli(); } while(0);
> +#define __save_and_sti(x)  do { __save_flags(x); __sti(); } while(0);
> +

This is something different - but I'd think this is needed too.
Make sure this isn't a merge error (ie see if it's defined elsewhere).

> btw I also test following stuff which seems to works too:
> diff -NaurX dontdiff linux-2.4.21-pa0/include/asm-parisc/system_irqsave.h.mine
> linux-2.4.21-rc8-pa35/include/asm-parisc/system_irqsave.h.mine
> --- linux-2.4.21-pa0/include/asm-parisc/system_irqsave.h.mine	1970-01-01
> 01:00:00.000000000 +0100
> +++ linux-2.4.21-rc8-pa35/include/asm-parisc/system_irqsave.h.mine	2003-06-27
> 15:50:11.000000000 +0200
> @@ -0,0 +1,21 @@
> +#ifndef __PARISC_SYSTEM_IRQSAVE_H
> +#define __PARISC_SYSTEM_IRQSAVE_H
> +
> +/* interrupt control */
> +#define __save_flags(x)	__asm__ __volatile__("ssm 0, %0" : "=r" (x) : :
> "memory")
> +#define __restore_flags(x) __asm__ __volatile__("mtsm %0" : : "r" (x) :
> "memory")
> +#define __cli()	__asm__ __volatile__("rsm %0,%%r0\n" : : "i" (PSW_I) : "memory"
> )
> +#define __sti()	__asm__ __volatile__("ssm %0,%%r0\n" : : "i" (PSW_I) : "memory"
> )
> +
> +#define __save_and_cli(x)  do { __save_flags(x); __cli(); } while(0);
> +#define __save_and_sti(x)  do { __save_flags(x); __sti(); } while(0);
> +
> +/* For spinlocks etc */
> +#define local_irq_save(x)  __save_and_cli(x)
> +#define local_irq_set(x)   __save_and_sti(x)
> +
> +#define local_irq_restore(x) __restore_flags(x)
> +#define local_irq_disable() __cli()
> +#define local_irq_enable()  __sti()
> +
> +#endif /* __PARISC_SYSTEM_IRQSAVE_H */


This looks more familiar to me..but I'd need to review the whole tree and
can't do that right now.

> +0200
> +++ linux-2.4.21-rc8-pa35/arch/parisc/kernel/processor.c	2002-12-20 15:56:19.000000000
> +0100
> @@ -77,8 +77,6 @@
>  	unsigned long txn_addr;
>  	unsigned long cpuid;
>  	struct cpuinfo_parisc *p;
> -	extern struct irq_region_ops cpu_irq_ops; /* arch/parisc...irq.c */
> -	extern struct irqaction cpu_irq_actions[]; /* arch/parisc...irq.c */


If they are no longer referenced, that's fine.
I didn't really want these published in a header file if they are still
referenced.  But it's not a big deal if they are.

...
> - Grant what do you think about this:
> 
> diff -NaurX dontdiff linux-2.4.21-pa0/drivers/sound/ad1889.c linux-2.4.21-rc8-pa35/drivers/sound/ad1889.c
> --- linux-2.4.21-pa0/drivers/sound/ad1889.c	2003-06-27 07:46:37.000000000
> +0200
> +++ linux-2.4.21-rc8-pa35/drivers/sound/ad1889.c	2003-05-08 22:43:44.000000000
...

That's fine with me.
If AD had published decent specs for this chip, we could actually
get it workng. I only hacked around on it enough to get DMA sort of
working and *some* sounds came out of it.

> - another cleanup (don't remember why :-?)
...
> Comments:
> 
> - The first changes (xxx_bad(void)) was agreed earlier by Randolph but never
> comited (?). The goal is to breack the build of the kernel and so avoid the
> risk to boot one (as I do when I test evms or [xj]fs which required __put_XXX_asm64)
> which can unexpected damages

yes - that's good

> - The second replace Randolph __put_XXX_asm64(); it does the same job and
> avoid severall warning at compile time as:

good too

I need the above changes in a format that I apply with "patch -p1 < diff"
(or -p0) if you want me to commit them.

thanks,
grant





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Grant Grundler wrote:

>Joel,
>I mistakenly replied only to you on my previous mail.
>Can you please forward my previous reply to parisc-linux mailing list
>or send a copy back to me - I'll post it to the list then.
>
No pb, I kust forward it to the p-l ml.

>
>On Fri, Jun 27, 2003 at 06:14:58PM +0200, Joel Soete wrote:
>  
>
>>Hi Grant,
>>
>>    
>>
>>>diff -NaurX dontdiff linux-2.4.21-pa0/drivers/ide/pci/ns87415.c linux-2.4.21-rc8-pa35/drivers/ide/pci/ns87415.c
>>>      
>>>
>>>This is for c3000/j5000/et al workstations.
>>>NS "SuckyIO" multifunction chip includes ns87415 compatible IDE controller.
>>>      
>>>
>>...
>>    
>>
>>>>+#define __save_and_cli(x)  do { __save_flags(x); __cli(); } while(0);
>>>>+#define __save_and_sti(x)  do { __save_flags(x); __sti(); } while(0);
>>>>+
>>>>        
>>>>
>>>This is something different - but I'd think this is needed too.
>>>Make sure this isn't a merge error (ie see if it's defined elsewhere).
>>>      
>>>
>>I need it to make work my ide cdrom onto my b2k (I grab this stuff
>>from another platform)
>>    
>>
>
>ah ok.
>
>The IDE CDROM are pretty standard devices. Note the DMA does NOT work.
>And even with PIO mode, it just barely works - enough to do an install.
>So don't use it too much unless you can afford to crash your box.
>At least that was my experience with 2.4.19 or so.
>
Yes also experiment this inconvinience. I just needed it to install the 
initial debian (in its time) and now to read some doc or small ft via rw-cd.

>>The following stuff is just a variant (just for info)
>>    
>>
>
>ok.
>
>...
>  
>
>>>If they are no longer referenced, that's fine.
>>>      
>>>
>>hmm in fact the last ref of 'cpu_irq_actions' is in arch/parisc/kernel/processor.c
>>and now embrace by #if 0 [...] #endif
>>(I will see to cleanup too)
>>...
>>    
>>
>
>ok
>
>  
>
>>>I need the above changes in a format that I apply with "patch -p1 < diff"
>>>      
>>>
>>Here is attached Mydiff2421.txt
>>    
>>
>
>ok. let me apply local and try it out first.
>
Logical

> If all is well, should see
>something by this weekend.
>  
>
It works for my b180 and b2k. I will test it also on the N (still UP 
mode) next week.

Good luck and thanks for your attention,
    Joel




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Hi all,

Can someone explain why include/asm-parisc/byteorder.h uses the following?

#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
#  define __BYTEORDER_HAS_U64__
#  define __SWAB_64_THRU_32__
#endif

vs include/asm-sparc64/byeorder.h:
#define __BYTEORDER_HAS_U64__

I'm pretty sure we don't want __SWAB_64_THRU_32__ defined.
PA-RISC version of ___arch__swab64() is appropriately defined for
both 32 and 64-bit compiles.

For reference include/linux/byteorder/swab.h says:
#ifdef __BYTEORDER_HAS_U64__
static __inline__ __const__ __u64 __fswab64(__u64 x)
{
#  ifdef __SWAB_64_THRU_32__
        __u32 h = x >> 32;
        __u32 l = x & ((1ULL<<32)-1);
        return (((__u64)__swab32(l)) << 32) |
		((__u64)(__swab32(h)));
#  else
        return __arch__swab64(x);
#  endif
}
...

thanks,
grant


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] byte swapping redux
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On Sun, Jun 29, 2003 at 12:14:15PM -0600, Grant Grundler wrote:
> #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
> #  define __BYTEORDER_HAS_U64__
> #  define __SWAB_64_THRU_32__
> #endif
> 
> vs include/asm-sparc64/byeorder.h:
> #define __BYTEORDER_HAS_U64__

BTW, I forgot to mention parisc is picking generic 64-bit swap macros.
Instead of 4 cycles, we are talking 30 or so.

grant


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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] byte swapping redux
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On Sun, Jun 29, 2003 at 12:14:15PM -0600, Grant Grundler wrote:
> Hi all,
> 
> Can someone explain why include/asm-parisc/byteorder.h uses the following?
> 
> #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
> #  define __BYTEORDER_HAS_U64__
> #  define __SWAB_64_THRU_32__
> #endif

Protection against userspace inclusion.  Which shouldn't be happening
of course, but some userspace programs are crap.

> vs include/asm-sparc64/byeorder.h:
> #define __BYTEORDER_HAS_U64__
> 
> I'm pretty sure we don't want __SWAB_64_THRU_32__ defined.
> PA-RISC version of ___arch__swab64() is appropriately defined for
> both 32 and 64-bit compiles.

Take it out then; if it works, commit it (to 2.5 anyway).

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] binutils ICE while building todays gcc HEAD on hppa-linux
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Xref: news.gmane.org gmane.linux.ports.parisc:18768

> ICE in binutils-2.14.90.0.4 building gcc HEAD 20030625, while linking
> the shared libstdc++ library:
> 
> [...]
> -Wl,-soname -Wl,libstdc++.so.6 -o .libs/libstdc++.so.6.0.0
> /usr/bin/ld: BFD 2.14.90.0.4 20030523 Debian GNU/Linux internal error, aborting at ../../bfd/elf32-hppa.c line 3864 in elf32_hppa_relocate_section
> 
> /usr/bin/ld: Please report this bug.

I have installed the enclosed patch on the gcc trunk to work around the
above error.  There still isn't a good fix for the linker error.

The patch works around the problem by not using function descriptors
for the jump from a thunk on PA ports that define ASM_OUTPUT_DEF
(hppa-linux, hppa64-hpux).

In general, thunk and call sequence generation should be improved,
although things have gotten more complicated :(  The patch fixes
a bug in the updating and usage of total_code_bytes.  We were incorrectly
including linkonce sections in total_code_bytes and this caused a long
sequence to be used in some cases when a short sequence would do.

Tested with no regressions on hppa-unknown-linux-gnu, hppa2.0w-hp-hpux11.00
and hppa64-hp-hpux11.11.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

2003-06-29  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (update_total_code_bytes): New function.
	(last_address): Number of bytes output for a function and its
	associated thunks.
	(compute_frame_size): Use BITS_PER_UNIT.
	(pa_output_function_epilogue): Compute last_address.  Use
	update_total_code_bytes.
	(output_lbranch): Handle long branch on portable runtime.
	(attr_length_millicode_call, attr_length_call,
	attr_length_indirect_call): Only use total_code_bytes for calls in
	the text section.
	(output_call): Only use an indirect call sequence when the target is
	not local.
	(pa_asm_output_mi_thunk): Handle updating of total_code_bytes.  Improve
	test to determine when an IA-relative branch can be used.  Add various
	long branch sequences.  Avoid using an indirect branch on all ports
	except SOM.

Index: config/pa/pa.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/pa/pa.c,v
retrieving revision 1.216
diff -u -3 -p -r1.216 pa.c
--- config/pa/pa.c	19 Jun 2003 21:47:19 -0000	1.216
+++ config/pa/pa.c	29 Jun 2003 16:35:11 -0000
@@ -113,6 +113,7 @@ static void store_reg_modify PARAMS ((in
 static void load_reg PARAMS ((int, int, int));
 static void set_reg_plus_d PARAMS ((int, int, int, int));
 static void pa_output_function_prologue PARAMS ((FILE *, HOST_WIDE_INT));
+static void update_total_code_bytes PARAMS ((int));
 static void pa_output_function_epilogue PARAMS ((FILE *, HOST_WIDE_INT));
 static int pa_adjust_cost PARAMS ((rtx, rtx, rtx, int));
 static int pa_adjust_priority PARAMS ((rtx, int));
@@ -169,10 +170,15 @@ static int gr_saved, fr_saved;
 
 static rtx find_addr_reg PARAMS ((rtx));
 
-/* Keep track of the number of bytes we have output in the CODE subspaces
+/* Keep track of the number of bytes we have output in the CODE subspace
    during this compilation so we'll know when to emit inline long-calls.  */
 unsigned long total_code_bytes;
 
+/* The last address of the previous function plus the number of bytes in
+   associated thunks that have been output.  This is used to determine if
+   a thunk can use an IA-relative branch to reach its target function.  */
+static int last_address;
+
 /* Variables to handle plabels that we discover are necessary at assembly
    output time.  They are output after the current function.  */
 struct deferred_plabel GTY(())
@@ -3292,8 +3298,8 @@ compute_frame_size (size, fregs_live)
     size += TARGET_64BIT ? 48 : 32;
 
   /* Finally, round to the preferred stack boundary.  */
-  return ((size + PREFERRED_STACK_BOUNDARY / 8 - 1)
-	  & ~(PREFERRED_STACK_BOUNDARY / 8 - 1));
+  return ((size + PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT - 1)
+	  & ~(PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT - 1));
 }
 
 /* Generate the assembly code for function entry.  FILE is a stdio
@@ -3681,6 +3687,30 @@ load_reg (reg, disp, base)
     }
 }
 
+/* Update the total code bytes output to the text section.  */
+
+static void
+update_total_code_bytes (nbytes)
+     int nbytes;
+{
+  if ((TARGET_PORTABLE_RUNTIME || !TARGET_GAS || !TARGET_SOM)
+      && in_text_section ())
+    {
+      if (INSN_ADDRESSES_SET_P ())
+	{
+	  unsigned long old_total = total_code_bytes;
+
+	  total_code_bytes += nbytes;
+
+	  /* Be prepared to handle overflows.  */
+	  if (old_total > total_code_bytes)
+	    total_code_bytes = -1;
+	}
+      else
+	total_code_bytes = -1;
+    }
+}
+
 /* This function generates the assembly code for function exit.
    Args are as for output_function_prologue ().
 
@@ -3694,9 +3724,10 @@ pa_output_function_epilogue (file, size)
      FILE *file;
      HOST_WIDE_INT size ATTRIBUTE_UNUSED;
 {
-  int last_address = 0;
   rtx insn = get_last_insn ();
 
+  last_address = 0;
+
   /* hppa_expand_epilogue does the dirty work now.  We just need
      to output the assembler directives which denote the end
      of a function.
@@ -3724,29 +3755,18 @@ pa_output_function_epilogue (file, size)
 
   fputs ("\t.EXIT\n\t.PROCEND\n", file);
 
-  /* Finally, update the total number of code bytes output so far.  */
-  if ((TARGET_PORTABLE_RUNTIME || !TARGET_GAS || !TARGET_SOM)
-      && !flag_function_sections)
+  if (INSN_ADDRESSES_SET_P ())
     {
-      if (INSN_ADDRESSES_SET_P ())
-	{
-	  unsigned long old_total = total_code_bytes;
-
-	  insn = get_last_nonnote_insn ();
-	  last_address += INSN_ADDRESSES (INSN_UID (insn));
-	  if (INSN_P (insn))
-	    last_address += insn_default_length (insn);
-
-	  total_code_bytes += last_address;
-	  total_code_bytes += FUNCTION_BOUNDARY / BITS_PER_UNIT;
-
-	  /* Be prepared to handle overflows.  */
-	  if (old_total > total_code_bytes)
-	    total_code_bytes = -1;
-	}
-      else
-	total_code_bytes = -1;
+      insn = get_last_nonnote_insn ();
+      last_address += INSN_ADDRESSES (INSN_UID (insn));
+      if (INSN_P (insn))
+	last_address += insn_default_length (insn);
+      last_address = ((last_address + FUNCTION_BOUNDARY / BITS_PER_UNIT - 1)
+		      & ~(FUNCTION_BOUNDARY / BITS_PER_UNIT - 1));
     }
+
+  /* Finally, update the total number of code bytes output so far.  */
+  update_total_code_bytes (last_address);
 }
 
 void
@@ -5904,7 +5924,13 @@ output_lbranch (dest, insn)
 	output_asm_insn ("stw %%r1,-12(%%r30)", xoperands);
     }
 
-  if (flag_pic)
+  if (TARGET_PORTABLE_RUNTIME)
+    {
+      output_asm_insn ("ldil L'%0,%%r1", xoperands);
+      output_asm_insn ("ldo R'%0(%%r1),%%r1", xoperands);
+      output_asm_insn ("bv %%r0(%%r1)", xoperands);
+    }
+  else if (flag_pic)
     {
       output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands);
       if (TARGET_SOM || !TARGET_GAS)
@@ -6545,11 +6571,12 @@ attr_length_millicode_call (insn)
      rtx insn;
 {
   unsigned long distance = -1;
+  unsigned long total = in_text_section () ? total_code_bytes : 0;
 
   if (INSN_ADDRESSES_SET_P ())
     {
-      distance = (total_code_bytes + insn_current_reference_address (insn));
-      if (distance < total_code_bytes)
+      distance = (total + insn_current_reference_address (insn));
+      if (distance < total)
 	distance = -1;
     }
 
@@ -6741,11 +6768,12 @@ attr_length_call (insn, sibcall)
      int sibcall;
 {
   unsigned long distance = -1;
+  unsigned long total = in_text_section ()? total_code_bytes : 0;
 
   if (INSN_ADDRESSES_SET_P ())
     {
-      distance = (total_code_bytes + insn_current_reference_address (insn));
-      if (distance < total_code_bytes)
+      distance = (total + insn_current_reference_address (insn));
+      if (distance < total)
 	distance = -1;
     }
 
@@ -6813,12 +6841,15 @@ output_call (insn, call_dest, sibcall)
   int delay_insn_deleted = 0;
   int delay_slot_filled = 0;
   int seq_length = dbr_sequence_length ();
+  tree call_decl = SYMBOL_REF_DECL (call_dest);
+  int local_call = call_decl && !TREE_PUBLIC (call_decl);
   rtx xoperands[2];
 
   xoperands[0] = call_dest;
 
   /* Handle the common case where we're sure that the branch will reach
-     the beginning of the $CODE$ subspace.  */
+     the beginning of the "$CODE$" subspace.  This is the beginning of
+     the current function if we are in a named section.  */
   if (!TARGET_LONG_CALLS && attr_length_call (insn, sibcall) == 8)
     {
       xoperands[1] = gen_rtx_REG (word_mode, sibcall ? 0 : 2);
@@ -6826,7 +6857,7 @@ output_call (insn, call_dest, sibcall)
     }
   else
     {
-      if (TARGET_64BIT)
+      if (TARGET_64BIT && !local_call)
 	{
 	  /* ??? As far as I can tell, the HP linker doesn't support the
 	     long pc-relative sequence described in the 64-bit runtime
@@ -6878,9 +6909,10 @@ output_call (insn, call_dest, sibcall)
 	  /* Emit a long call.  There are several different sequences
 	     of increasing length and complexity.  In most cases,
              they don't allow an instruction in the delay slot.  */
-	  if (!(TARGET_LONG_ABS_CALL && !flag_pic)
+	  if (!((TARGET_LONG_ABS_CALL || local_call) && !flag_pic)
 	      && !(TARGET_SOM && TARGET_LONG_PIC_SDIFF_CALL)
-	      && !(TARGET_GAS && TARGET_LONG_PIC_PCREL_CALL))
+	      && !(TARGET_GAS && (TARGET_LONG_PIC_PCREL_CALL || local_call))
+	      && !TARGET_64BIT)
 	    indirect_call = 1;
 
 	  if (seq_length != 0
@@ -6900,12 +6932,13 @@ output_call (insn, call_dest, sibcall)
 	      delay_insn_deleted = 1;
 	    }
 
-	  if (TARGET_LONG_ABS_CALL && !flag_pic)
+	  if ((TARGET_LONG_ABS_CALL || local_call) && !flag_pic)
 	    {
 	      /* This is the best sequence for making long calls in
 		 non-pic code.  Unfortunately, GNU ld doesn't provide
 		 the stub needed for external calls, and GAS's support
-		 for this with the SOM linker is buggy.  */
+		 for this with the SOM linker is buggy.  It is safe
+		 to use this for local calls.  */
 	      output_asm_insn ("ldil L'%0,%%r1", xoperands);
 	      if (sibcall)
 		output_asm_insn ("be R'%0(%%sr4,%%r1)", xoperands);
@@ -6923,7 +6956,8 @@ output_call (insn, call_dest, sibcall)
 	    }
 	  else
 	    {
-	      if (TARGET_SOM && TARGET_LONG_PIC_SDIFF_CALL)
+	      if ((TARGET_SOM && TARGET_LONG_PIC_SDIFF_CALL)
+		  || (TARGET_64BIT && !TARGET_GAS))
 		{
 		  /* The HP assembler and linker can handle relocations
 		     for the difference of two symbols.  GAS and the HP
@@ -6936,7 +6970,7 @@ output_call (insn, call_dest, sibcall)
 					     CODE_LABEL_NUMBER (xoperands[1]));
 		  output_asm_insn ("ldo R'%0-%l1(%%r1),%%r1", xoperands);
 		}
-	      else if (TARGET_GAS && TARGET_LONG_PIC_PCREL_CALL)
+	      else if (TARGET_GAS && (TARGET_LONG_PIC_PCREL_CALL || local_call))
 		{
 		  /*  GAS currently can't generate the relocations that
 		      are needed for the SOM linker under HP-UX using this
@@ -7075,11 +7109,9 @@ output_call (insn, call_dest, sibcall)
 					     CODE_LABEL_NUMBER (xoperands[1]));
 	}
       else
-	/* ??? This branch may not reach its target.  */
 	output_asm_insn ("nop\n\tb,n %0", xoperands);
     }
   else
-    /* ??? This branch may not reach its target.  */
     output_asm_insn ("b,n %0", xoperands);
 
   /* Delete the jump.  */
@@ -7101,11 +7133,12 @@ attr_length_indirect_call (insn)
      rtx insn;
 {
   unsigned long distance = -1;
+  unsigned long total = in_text_section () ? total_code_bytes : 0;
 
   if (INSN_ADDRESSES_SET_P ())
     {
-      distance = (total_code_bytes + insn_current_reference_address (insn));
-      if (distance < total_code_bytes)
+      distance = (total + insn_current_reference_address (insn));
+      if (distance < total)
 	distance = -1;
     }
 
@@ -7280,81 +7313,239 @@ pa_asm_output_mi_thunk (file, thunk_fnde
      HOST_WIDE_INT vcall_offset ATTRIBUTE_UNUSED;
      tree function;
 {
-  const char *target_name = XSTR (XEXP (DECL_RTL (function), 0), 0);
+  const char *fname = XSTR (XEXP (DECL_RTL (function), 0), 0);
+  const char *tname = XSTR (XEXP (DECL_RTL (thunk_fndecl), 0), 0);
+  int val_14 = VAL_14_BITS_P (delta);
+  int nbytes = 0;
   static unsigned int current_thunk_number;
   char label[16];
-  const char *lab;
-  ASM_GENERATE_INTERNAL_LABEL (label, "LTHN", current_thunk_number);
-  lab = (*targetm.strip_name_encoding) (label);
-  target_name = (*targetm.strip_name_encoding) (target_name);
-  /* FIXME: total_code_bytes is not handled correctly in files with
-     mi thunks.  */
-  pa_output_function_prologue (file, 0);
-  if (VAL_14_BITS_P (delta))
-    {
-      if (!TARGET_64BIT && !TARGET_PORTABLE_RUNTIME && flag_pic)
-	{
-	  fprintf (file, "\taddil LT'%s,%%r19\n", lab);
-	  fprintf (file, "\tldw RT'%s(%%r1),%%r22\n", lab);
-	  fprintf (file, "\tldw 0(%%sr0,%%r22),%%r22\n");
-	  fprintf (file, "\tbb,>=,n %%r22,30,.+16\n");
-	  fprintf (file, "\tdepi 0,31,2,%%r22\n");
-	  fprintf (file, "\tldw 4(%%sr0,%%r22),%%r19\n");
-	  fprintf (file, "\tldw 0(%%sr0,%%r22),%%r22\n");
+
+  ASM_OUTPUT_LABEL (file, tname);
+  fprintf (file, "\t.PROC\n\t.CALLINFO FRAME=0,NO_CALLS\n\t.ENTRY\n");
+
+  fname = (*targetm.strip_name_encoding) (fname);
+  tname = (*targetm.strip_name_encoding) (tname);
+
+  /* Output the thunk.  We know that the function is in the same
+     translation unit (i.e., the same space) as the thunk, and that
+     thunks are output after their method.  Thus, we don't need an
+     external branch to reach the function.  With SOM and GAS,
+     functions and thunks are effectively in different sections.
+     Thus, we can always use a IA-relative branch and the linker
+     will add a long branch stub if necessary.
+
+     However, we have to be careful when generating PIC code on the
+     SOM port to ensure that the sequence does not transfer to an
+     import stub for the target function as this could clobber the
+     return value saved at SP-24.  This would also apply to the
+     32-bit linux port if the multi-space model is implemented.  */
+  if ((!TARGET_LONG_CALLS && TARGET_SOM && !TARGET_PORTABLE_RUNTIME
+       && !(flag_pic && TREE_PUBLIC (function))
+       && (TARGET_GAS || last_address < 262132))
+      || (!TARGET_LONG_CALLS && !TARGET_SOM && !TARGET_PORTABLE_RUNTIME
+	  && ((targetm.have_named_sections
+	       && DECL_SECTION_NAME (thunk_fndecl) != NULL
+	       /* The GNU 64-bit linker has rather poor stub management.
+		  So, we use a long branch from thunks that aren't in
+		  the same section as the target function.  */
+	       && ((!TARGET_64BIT
+		    && (DECL_SECTION_NAME (thunk_fndecl)
+			!= DECL_SECTION_NAME (function)))
+		   || ((DECL_SECTION_NAME (thunk_fndecl)
+			== DECL_SECTION_NAME (function))
+		       && last_address < 262132)))
+	      || (!targetm.have_named_sections && last_address < 262132))))
+    {
+      if (val_14)
+	{
+	  fprintf (file, "\tb %s\n\tldo " HOST_WIDE_INT_PRINT_DEC
+			 "(%%r26),%%r26\n", fname, delta);
+	  nbytes += 8;
+	}
+      else
+	{
+	  fprintf (file, "\taddil L'" HOST_WIDE_INT_PRINT_DEC
+			 ",%%r26\n", delta);
+	  fprintf (file, "\tb %s\n\tldo R'" HOST_WIDE_INT_PRINT_DEC
+			 "(%%r1),%%r26\n", fname, delta);
+	  nbytes += 12;
+	}
+    }
+  else if (TARGET_64BIT)
+    {
+      /* We only have one call-clobbered scratch register, so we can't
+         make use of the delay slot if delta doesn't fit in 14 bits.  */
+      if (!val_14)
+	fprintf (file, "\taddil L'" HOST_WIDE_INT_PRINT_DEC
+		       ",%%r26\n\tldo R'" HOST_WIDE_INT_PRINT_DEC
+		       "(%%r1),%%r26\n", delta, delta);
+
+      fprintf (file, "\tb,l .+8,%%r1\n");
+
+      if (TARGET_GAS)
+	{
+	  fprintf (file, "\taddil L'%s-$PIC_pcrel$0+4,%%r1\n", fname);
+	  fprintf (file, "\tldo R'%s-$PIC_pcrel$0+8(%%r1),%%r1\n", fname);
+	}
+      else
+	{
+	  int off = val_14 ? 8 : 16;
+	  fprintf (file, "\taddil L'%s-%s-%d,%%r1\n", fname, tname, off);
+	  fprintf (file, "\tldo R'%s-%s-%d(%%r1),%%r1\n", fname, tname, off);
+	}
+
+      if (val_14)
+	{
+	  fprintf (file, "\tbv %%r0(%%r1)\n\tldo ");
+	  fprintf (file, HOST_WIDE_INT_PRINT_DEC "(%%r26),%%r26\n", delta);
+	  nbytes += 20;
+	}
+      else
+	{
+	  fprintf (file, "\tbv,n %%r0(%%r1)\n");
+	  nbytes += 24;
+	}
+    }
+  else if (TARGET_PORTABLE_RUNTIME)
+    {
+      fprintf (file, "\tldil L'%s,%%r1\n", fname);
+      fprintf (file, "\tldo R'%s(%%r1),%%r22\n", fname);
+
+      if (val_14)
+	{
+	  fprintf (file, "\tbv %%r0(%%r22)\n\tldo ");
+	  fprintf (file, HOST_WIDE_INT_PRINT_DEC "(%%r26),%%r26\n", delta);
+	  nbytes += 16;
+	}
+      else
+	{
+	  fprintf (file, "\taddil L'" HOST_WIDE_INT_PRINT_DEC
+			 ",%%r26\n", delta);
+	  fprintf (file, "\tbv %%r0(%%r22)\n\tldo ");
+	  fprintf (file, "R'" HOST_WIDE_INT_PRINT_DEC "(%%r1),%%r26\n", delta);
+	  nbytes += 20;
+	}
+    }
+  else if (TARGET_SOM && flag_pic && TREE_PUBLIC (function))
+    {
+      /* The function is accessible from outside this module.  The only
+	 way to avoid an import stub between the thunk and function is to
+	 call the function directly with an indirect sequence similar to
+	 that used by $$dyncall.  This is possible because $$dyncall acts
+	 as the import stub in an indirect call.  */
+      const char *lab;
+
+      ASM_GENERATE_INTERNAL_LABEL (label, "LTHN", current_thunk_number);
+      lab = (*targetm.strip_name_encoding) (label);
+
+      fprintf (file, "\taddil LT'%s,%%r19\n", lab);
+      fprintf (file, "\tldw RT'%s(%%r1),%%r22\n", lab);
+      fprintf (file, "\tldw 0(%%sr0,%%r22),%%r22\n");
+      fprintf (file, "\tbb,>=,n %%r22,30,.+16\n");
+      fprintf (file, "\tdepi 0,31,2,%%r22\n");
+      fprintf (file, "\tldw 4(%%sr0,%%r22),%%r19\n");
+      fprintf (file, "\tldw 0(%%sr0,%%r22),%%r22\n");
+      if (!val_14)
+	{
+	  fprintf (file, "\taddil L'" HOST_WIDE_INT_PRINT_DEC
+			 ",%%r26\n", delta);
+	  nbytes += 4;
+	}
+      if (TARGET_PA_20)
+	{
+          fprintf (file, "\tbve (%%r22)\n\tldo ");
+	  nbytes += 36;
+	}
+      else
+	{
 	  if (TARGET_NO_SPACE_REGS)
-	    fprintf (file, "\tbe 0(%%sr4,%%r22)\n\tldo ");
+	    {
+	      fprintf (file, "\tbe 0(%%sr4,%%r22)\n\tldo ");
+	      nbytes += 36;
+	    }
 	  else
 	    {
 	      fprintf (file, "\tldsid (%%sr0,%%r22),%%r1\n");
-	      fprintf (file, "\tmtsp %%r1,%%sr0\n");
+	      fprintf (file, "\tmtsp %%r21,%%sr0\n");
 	      fprintf (file, "\tbe 0(%%sr0,%%r22)\n\tldo ");
+	      nbytes += 44;
 	    }
+	}
+
+      if (val_14)
+	fprintf (file, HOST_WIDE_INT_PRINT_DEC "(%%r26),%%r26\n", delta);
+      else
+	fprintf (file, "R'" HOST_WIDE_INT_PRINT_DEC "(%%r1),%%r26\n", delta);
+    }
+  else if (flag_pic)
+    {
+      if (TARGET_PA_20)
+	fprintf (file, "\tb,l .+8,%%r1\n");
+      else
+	fprintf (file, "\tbl .+8,%%r1\n");
+
+      if (TARGET_SOM || !TARGET_GAS)
+	{
+	  fprintf (file, "\taddil L'%s-%s-8,%%r1\n", fname, tname);
+	  fprintf (file, "\tldo R'%s-%s-8(%%r1),%%r22\n", fname, tname);
+	}
+      else
+	{
+	  fprintf (file, "\taddil L'%s-$PIC_pcrel$0+4,%%r1\n", fname);
+	  fprintf (file, "\tldo R'%s-$PIC_pcrel$0+8(%%r1),%%r22\n", fname);
+	}
+
+      if (val_14)
+	{
+	  fprintf (file, "\tbv %%r0(%%r22)\n\tldo ");
 	  fprintf (file, HOST_WIDE_INT_PRINT_DEC "(%%r26),%%r26\n", delta);
+	  nbytes += 20;
 	}
       else
-	fprintf (file, "\tb %s\n\tldo " HOST_WIDE_INT_PRINT_DEC
-		 "(%%r26),%%r26\n",
-		 target_name, delta);
+	{
+	  fprintf (file, "\taddil L'" HOST_WIDE_INT_PRINT_DEC
+			 ",%%r26\n", delta);
+	  fprintf (file, "\tbv %%r0(%%r22)\n\tldo ");
+	  fprintf (file, "R'" HOST_WIDE_INT_PRINT_DEC "(%%r1),%%r26\n", delta);
+	  nbytes += 24;
+	}
     }
   else
     {
-      if (!TARGET_64BIT && !TARGET_PORTABLE_RUNTIME && flag_pic)
+      if (!val_14)
+	fprintf (file, "\taddil L'" HOST_WIDE_INT_PRINT_DEC ",%%r26\n", delta);
+
+      fprintf (file, "\tldil L'%s,%%r22\n", fname);
+      fprintf (file, "\tbe R'%s(%%sr4,%%r22)\n\tldo ", fname);
+
+      if (val_14)
 	{
-	  fprintf (file, "\taddil L'" HOST_WIDE_INT_PRINT_DEC
-		   ",%%r26\n\tldo R'" HOST_WIDE_INT_PRINT_DEC "(%%r1),%%r26\n",
-		   delta, delta);
-	  fprintf (file, "\taddil LT'%s,%%r19\n", lab);
-	  fprintf (file, "\tldw RT'%s(%%r1),%%r22\n", lab);
-	  fprintf (file, "\tldw 0(%%sr0,%%r22),%%r22\n");
-	  fprintf (file, "\tbb,>=,n %%r22,30,.+16\n");
-	  fprintf (file, "\tdepi 0,31,2,%%r22\n");
-	  fprintf (file, "\tldw 4(%%sr0,%%r22),%%r19\n");
-	  fprintf (file, "\tldw 0(%%sr0,%%r22),%%r22\n");
-	  if (TARGET_NO_SPACE_REGS)
-	    fprintf (file, "\tbe 0(%%sr4,%%r22)");
-	  else
-	    {
-	      fprintf (file, "\tldsid (%%sr0,%%r22),%%r1\n");
-	      fprintf (file, "\tmtsp %%r1,%%sr0\n");
-	      fprintf (file, "\tbe,n 0(%%sr0,%%r22)\n");
-	    }
+	  fprintf (file, HOST_WIDE_INT_PRINT_DEC "(%%r26),%%r26\n", delta);
+	  nbytes += 12;
 	}
       else
-	fprintf (file, "\taddil L'" HOST_WIDE_INT_PRINT_DEC
-		 ",%%r26\n\tb %s\n\tldo R'" HOST_WIDE_INT_PRINT_DEC
-		 "(%%r1),%%r26\n", delta, target_name, delta);
+	{
+	  fprintf (file, "R'" HOST_WIDE_INT_PRINT_DEC "(%%r1),%%r26\n", delta);
+	  nbytes += 16;
+	}
     }
-    
+
   fprintf (file, "\t.EXIT\n\t.PROCEND\n");
-  if (! TARGET_64BIT && ! TARGET_PORTABLE_RUNTIME && flag_pic)
+
+  if (TARGET_SOM && flag_pic && TREE_PUBLIC (function))
     {
       data_section ();
       fprintf (file, "\t.align 4\n");
-      (*targetm.asm_out.internal_label) (file, "LTHN", current_thunk_number);
-      fprintf (file, "\t.word P'%s\n", target_name);
+      ASM_OUTPUT_LABEL (file, label);
+      fprintf (file, "\t.word P'%s\n", fname);
       function_section (thunk_fndecl);
     }
+
   current_thunk_number++;
+  nbytes = ((nbytes + FUNCTION_BOUNDARY / BITS_PER_UNIT - 1)
+	    & ~(FUNCTION_BOUNDARY / BITS_PER_UNIT - 1));
+  last_address += nbytes;
+  update_total_code_bytes (nbytes);
 }
 
 /* Only direct calls to static functions are allowed to be sibling (tail)


From - Thu Nov 08 21:28:13 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] byte swapping redux
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On Sun, Jun 29, 2003 at 07:41:50PM +0100, Matthew Wilcox wrote:
> Protection against userspace inclusion.  Which shouldn't be happening
> of course, but some userspace programs are crap.

What are they protecting against?
I'll remove it.

> > I'm pretty sure we don't want __SWAB_64_THRU_32__ defined.
> > PA-RISC version of ___arch__swab64() is appropriately defined for
> > both 32 and 64-bit compiles.
> 
> Take it out then; if it works, commit it (to 2.5 anyway).

well, I'm still looking at 2.4.x...you know about the problems I had
finding my boot disk on the rx2600 (ia64) when trying to boot 2.5.72.
I'm not keen on reproducing experience on parisc this weekend.

I was actually trying to get up to speed to test/review Joel's patch.

BTW, Prelimary diff on ftp://ftp.p-l.o/patches/diff-2.4.21-pa1
attempts to fix the byteorder.h mess and first cut at trying
to get intermezzo to build. But intermezzo won't assemble because
it has field alignment (ldd 52(x) instruction) problems.


thanks,
grant


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From: Mark Mestdagh <Mark.Mestdagh@Icon-Europe.com>
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Subject: [parisc-linux] Kernel compilation for J5600
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Hi all

I'm trying to enable an usb mouse/keyboard on a J5600. I followed the 
instructions described on the parisc-linux website but was unable to get them 
working. I suspect there are some special options to enable for USB but which 
ones? As this is a SMP system I cannot use the prebuild kernels. So if someone 
can outline the options to enable usb, that would be great ;)

Regards
Mark Mestdagh




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> I'm trying to enable an usb mouse/keyboard on a J5600. I followed the 
> instructions described on the parisc-linux website but was unable to get them 
> working. I suspect there are some special options to enable for USB but which 
> ones? As this is a SMP system I cannot use the prebuild kernels. So if someone 
> can outline the options to enable usb, that would be great ;)

Why can't you use the prebuilt kernels? kernel-image-2.4.20-32-smp
supports SMP (and the corresponding 64-bit version too...)

parisc machines use the OHCI driver, which is enabled by default in the
debian kernels.

CONFIG_USB=y
CONFIG_USB_DEVICEFS=y
CONFIG_USB_OHCI=y
CONFIG_USB_STORAGE=m
CONFIG_USB_HID=y
CONFIG_USB_HIDINPUT=y

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> BTW, Prelimary diff on ftp://ftp.p-l.o/patches/diff-2.4.21-pa1
> attempts to fix the byteorder.h mess and first cut at trying
> to get intermezzo to build. But intermezzo won't assemble because
> it has field alignment (ldd 52(x) instruction) problems.

Hmm here no pb to build intermezzo (as a module) neither for 2.4.21-pa1 neither
2.4.22-pre2-pa1 (gcc-3.3 32bits at least). So I suspect that it is a pb with
binutils (I still have to downgrade it to binutils-2.13.90.0.18-1.7_hppa.deb)
which Dave fixed in upstream a time ago but (I don't know why) not yet included
in debian dpkg.

hth,
    Joel


---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be




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                   V I R U S  A L E R T

  Our viruschecker found a VIRUS in your email to "ronsse".
           We stopped delivery of this email!

    Now it is on you to check your system for viruses           

  For further information about this viruschecker see:
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        AMaViS - A Mail Virus Scanner, licenced GPL



For your reference, here are the headers from your email:

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hi, has anyone of you experience problems with 2.4.21-pa0 and the
ifconfig command?

it heavily dumps when i boot this kernel on my C200.

thanks in advance,

Alex


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On Mon, Jun 30, 2003 at 04:58:01PM +0200, Joel Soete wrote:
> I don't understand why the 32bits kernel crashed with this patche:
> (gcc-3.3 and binutils-2.13.90)

uhm...perhaps the 64-bit swap is buggy for 32-bit mode?
I didn't test that. It's a different code path.

> the log of the boot sequence shows me that the kernel was launched twice:

probably not. It's probably the kernel crash path just dumping out
the dmesg buffer "again".

grant


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On Mon, Jun 30, 2003 at 12:19:49PM +0200, Joel Soete wrote:
> Hmm here no pb to build intermezzo (as a module) neither for 2.4.21-pa1 neither
> 2.4.22-pre2-pa1 (gcc-3.3 32bits at least). So I suspect that it is a pb with
> binutils (I still have to downgrade it to binutils-2.13.90.0.18-1.7_hppa.deb)

For the record, here are the toolchain versions I'm using:
grundler@ios:~$ ld -v
GNU ld version 2.14.90.0.1 20030505 Debian GNU/Linux
grundler@ios:~$ gcc -v
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.2.3/specs
Configured with: ../src/configure -v
--enable-languages=c,c++,f77,objc,ada --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info
--with-gxx-include-dir=/usr/include/c++/3.2 --enable-shared
--with-system-zlib --enable-nls --without-included-gettext
--enable-__cxa_atexit --enable-clocale=gnu --enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.2.3
grundler@ios:~$ 


> which Dave fixed in upstream a time ago but (I don't know why) not yet
> included in debian dpkg.

Dave isn't responsible for the debian package...find the maintainer.

thanks,
grant


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On Sun, Jun 29, 2003 at 11:30:26PM -0700, Randolph Chung wrote:
> Why can't you use the prebuilt kernels? kernel-image-2.4.20-32-smp
> supports SMP (and the corresponding 64-bit version too...)

just a reminder...64-bit SMP is not stable yet.
32-bit SMP seems to work fine.

And I park a few "custom" kernels on ftp.parisc-linux.org/kernels/
which include the .config files used to build the kernels.
You want to look at c3000 kernels.

grant


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On Mon, Jun 30, 2003 at 05:17:04PM +0200, Alexander Gabert wrote:
> hi, has anyone of you experience problems with 2.4.21-pa0 and the
> ifconfig command?

works for me (tm).

grundler@ios:~$ /sbin/ifconfig
eth0      Link encap:Ethernet  HWaddr 00:30:6E:03:79:9F  
          inet addr:192.168.0.20  Bcast:192.168.0.255
Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2566 errors:1 dropped:0 overruns:0 frame:0
          TX packets:1499 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100 
          RX bytes:291959 (285.1 KiB)  TX bytes:523183 (510.9 KiB)
          Interrupt:128 Base address:0x6000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:560 (560.0 b)  TX bytes:560 (560.0 b)

grundler@ios:~$ uname -a
Linux ios 2.4.21-pa1 #5 Sun Jun 29 12:11:52 PDT 2003 parisc64 unknown unknown GNU/Linux

> it heavily dumps when i boot this kernel on my C200.

Can you send output?

grant


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On Mon, Jun 30, 2003 at 07:11:25PM +0200, Alexander Gabert wrote:
> hi,
> 
> adam:/usr/src# uname -a
> Linux adam 2.4.18-32 #1 Sat Mar 30 18:26:22 MST 2002 parisc unknown
> adam:/usr/src# dmesg | grep tulip
> tulip0: no phy info, aborting mtable build
> tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.

This is missing the phy reset polling patch.
expected result.
See ftp://ftp.parisc-linux.org/patches/diff.tulip_media-02

> on a 2.4.20-pa35 with tulip driver compiled in statically:
> adam:/usr/src/working02-gentoo/linux-2.4.20-pa35# grep TULIP .config
> CONFIG_TULIP=y

2.4.20-pa35 tulip definitely works on both hppa and hppa64 kernels.
I use both (c3000 and A500). Something else is wrong.

Perhaps you've suffered some data corruption in a dynamic
lib that ifconfig uses? or ifconfig binary itself?

> ...
> ifconfig (pid 2769): Illegal instruction (code 8)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>      PSW: 00000000000001000000000000001111 Not tainted
>      r00-03  00000000 10348cd0 102041a0 100addc1
>      r04-07  100ad800 10348968 10348968 00000000
>      r08-11  2f2c994c 2efdc610 00000000 00008914
>      r12-15  00000000 ffff7000 faf00560 0003022c
>      r16-19  0003022c 0003022c 0003022c 000000ff
>      r20-23  000000ef 100addc5 102efc1c 0bebc200
>      r24-27  100addc5 000000ef 10348968 1030e010
>      r28-31  e0000000 00000001 2efdcd00 102041a0
>      sr0-3   00000000 00000000 00000000 000023b5
>      sr4-7   00000000 00000000 00000000 00000000

sorry - even though this is the right output, it's incomplete.
I need the IOAQ.

thanks,
grant


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Subject: [parisc-linux] modprobe: Can't locate module char-major-60 (server hangs!)
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Hi,

I have just installed my first Debian server  3.0r1 on HP PA-RISC K210
(palinux-2.4.20).
I made installatiion using console device /dev/ttyB0.

After reboot I got the message, and the system became frozen.

Jun 27 15:08:47 smsmail4 modprobe: modprobe: Can't locate module char-major-60
Jun 27 15:08:49 smsmail4 last message repeated 9 times
Jun 27 15:08:49 smsmail4 init: Id "T0" respawning too fast: disabled for 5
minut

Everything is working in single-user mode (/sbin/sulogin starts just fine from
/etc/inittab)

Getty for ttyB0 gives the same error.

bash-2.05a# /sbin/getty -L ttyB0 9600 vt100
modprobe: modprobe: Can't locate module char-major-60

I tried to change devices or even to comment getty out from /etc/inittab, but
the server still hangs.

I suspect something could be fixed in /etc/modules.conf

It's still unclear for me what is the meaning of message
modprobe: Can't locate module char-major-60
from OS point of view.

Many thanks in advance for your help!

BR,
Dub


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Subject: Re: [parisc-linux] modprobe: Can't locate module char-major-60 (server hangs!)
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On Mon, Jun 30, 2003 at 08:54:38PM +0300, Dub wrote:
> Jun 27 15:08:47 smsmail4 modprobe: modprobe: Can't locate module char-major-60

ttyB0 has the wrong major number.  It needs to be character major 11.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Matthew Wilcox wrote:

>On Mon, Jun 30, 2003 at 08:54:38PM +0300, Dub wrote:
>  
>
>>Jun 27 15:08:47 smsmail4 modprobe: modprobe: Can't locate module char-major-60
>>    
>>
>
>ttyB0 has the wrong major number.  It needs to be character major 11.
>
>  
>
Thank you, great! If so, how to fix it in most efficient way?

BR,
Dub





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Hi Grant,

> For the record, here are the toolchain versions I'm using:
> grundler@ios:~$ ld -v
> GNU ld version 2.14.90.0.1 20030505 Debian GNU/Linux
> grundler@ios:~$ gcc -v
> Reading specs from /usr/lib/gcc-lib/hppa-linux/3.2.3/specs
> Configured with: ../src/configure -v
> --enable-languages=c,c++,f77,objc,ada --prefix=/usr
> --mandir=/usr/share/man --infodir=/usr/share/info
> --with-gxx-include-dir=/usr/include/c++/3.2 --enable-shared
> --with-system-zlib --enable-nls --without-included-gettext
> --enable-__cxa_atexit --enable-clocale=gnu --enable-objc-gc hppa-linux
> Thread model: posix
> gcc version 3.2.3
> grundler@ios:~$ 

Ok, and so is it the same pb with binutils 2.13.90 (if you have the opportunity
to test it)?

> > which Dave fixed in upstream a time ago but (I don't know why) not yet
> > included in debian dpkg.
> 
> Dave isn't responsible for the debian package...find the maintainer.

I will try to find some time to open a pr near debian maintainer ;-)

Thanks,
    Joel

PS: The disk I used to test 64bits kernel on teh N class is broken :(, so
awaiting a spare part and rebuild a system, here I will go to build the kernel
2.4.21-pa0 and 2.4.21-pa1 (in 32bits mode) then objdump all object and diff
them in the hope to find the pb

---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be




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Subject: Re: [parisc-linux] modprobe: Can't locate module char-major-60 (server hangs!)
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On Mon, Jun 30, 2003 at 10:55:22PM +0300, Dub wrote:
> 
> 
> Matthew Wilcox wrote:
> 
> >On Mon, Jun 30, 2003 at 08:54:38PM +0300, Dub wrote:
> > 
> >
> >>Jun 27 15:08:47 smsmail4 modprobe: modprobe: Can't locate module 
> >>char-major-60
> >>   
> >>
> >
> >ttyB0 has the wrong major number.  It needs to be character major 11.
> >
> > 
> >
> Thank you, great! If so, how to fix it in most efficient way?

Boot in single user mode, then:
# cd /dev
# rm ttyB0
# mknod ttyB0 c 11 0

-- 
Michael Wood <mwood@its.uct.ac.za>


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Xref: news.gmane.org gmane.linux.ports.parisc:18785

Grant & others

thanks already for the support. One little problem though is setting up the
CDROM. I followed the settings like the c3000 kernel but still I get a
problem while compiling:

ld: arch/parisc/kernel/kernel.o(.text.show_trace+0x58): fixing
R_PARISC_DPREL21L
drivers/ide/idedriver.o: In function `.L1588':
drivers/ide/idedriver.o(.text.probe_hwif+0xfc): undefined reference to
`local_irq_set'
drivers/ide/idedriver.o: In function `ide_wait_stat':
drivers/ide/idedriver.o(.text.ide_wait_stat+0xe0): undefined reference to
`local_irq_set'
drivers/ide/idedriver.o: In function `ide_config_drive_speed':
drivers/ide/idedriver.o(.text.ide_config_drive_speed+0x1c0): undefined
reference to `local_irq_set'
drivers/ide/idedriver.o: In function `taskfile_dump_status':
drivers/ide/idedriver.o(.text.taskfile_dump_status+0x40): undefined
reference to `local_irq_set'
drivers/ide/idedriver.o: In function `ide_dump_status':
drivers/ide/idedriver.o(.text.ide_dump_status+0x40): undefined reference to
`local_irq_set'
drivers/ide/idedriver.o(.text.ide_spin_wait_hwgroup+0x74): more undefined
references to `local_irq_set' follow
make: *** [vmlinux] Error 1

local_irq_set missing? ;) Hints & tips appriciated.

Thx
Mark


-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Grant
Grundler
Sent: maandag 30 juni 2003 18:51
To: Mark Mestdagh
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Kernel compilation for J5600


On Sun, Jun 29, 2003 at 11:30:26PM -0700, Randolph Chung wrote:
> Why can't you use the prebuilt kernels? kernel-image-2.4.20-32-smp
> supports SMP (and the corresponding 64-bit version too...)

just a reminder...64-bit SMP is not stable yet.
32-bit SMP seems to work fine.

And I park a few "custom" kernels on ftp.parisc-linux.org/kernels/
which include the .config files used to build the kernels.
You want to look at c3000 kernels.

grant
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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On Tue, Jul 01, 2003 at 10:10:24AM +0200, Mark Mestdagh wrote:
> Grant & others
> 
> thanks already for the support. One little problem though is setting up the
> CDROM. I followed the settings like the c3000 kernel but still I get a
> problem while compiling:
> 
> drivers/ide/idedriver.o(.text.probe_hwif+0xfc): undefined reference to
> `local_irq_set'

This is 2.4.21-pa1?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi Matthew

it was 2.4.21-pa0, but I cvs'ed to 2.4.21-pa1 and now it's fixed :)

Thanks

Mark

-----Original Message-----
From: willy@www.linux.org.uk [mailto:willy@www.linux.org.uk]On Behalf Of
Matthew Wilcox
Sent: dinsdag 1 juli 2003 15:22
To: Mark Mestdagh
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Kernel compilation for J5600


On Tue, Jul 01, 2003 at 10:10:24AM +0200, Mark Mestdagh wrote:
> Grant & others
>
> thanks already for the support. One little problem though is setting up
the
> CDROM. I followed the settings like the c3000 kernel but still I get a
> problem while compiling:
>
> drivers/ide/idedriver.o(.text.probe_hwif+0xfc): undefined reference to
> `local_irq_set'

This is 2.4.21-pa1?

--
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead
bodies.
Do you think I want to have an academic debate on this subject?" -- Robert
Fisk



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> > >ttyB0 has the wrong major number.  It needs to be character major
> 11.
> > >
> > > 
> > >
> > Thank you, great! If so, how to fix it in most efficient way?
> 
> Boot in single user mode, then:
> # cd /dev
> # rm ttyB0
> # mknod ttyB0 c 11 0
>
> Michael Wood <mwood@its.uct.ac.za>

Thanks a lot, Michael! It works!!!

BR,
Dub 


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Hi all,
 
> > drivers/ide/idedriver.o(.text.probe_hwif+0xfc): undefined reference to
> > `local_irq_set'

> This is 2.4.21-pa1?

Hmm not yet and my patch to Grant is definitely incomplete (Sorry, my bad).

In fact I am hesitate:

For many other paltform we can found:
(in system_irqsave.h)
[...]
/* For spinlocks etc */
#define local_irq_save(x)  __save_and_cli(x)
#define local_irq_set(x)   __save_and_sti(x)

#define local_irq_restore(x) __restore_flags(x)
#define local_irq_disable() __cli()
[...]

OTC for parisc:
[...]
#define local_irq_save(x) \
	__asm__ __volatile__("rsm %1,%0" : "=r" (x) :"i" (PSW_I) : "memory" )
#define local_irq_restore(x) \
	__asm__ __volatile__("mtsm %0" : : "r" (x) : "memory" )

[...]

So can we here simply add:
#define local_irq_set(x)   __save_and_sti(x)

Or do we actualy need a specific local_irq_set(x)?

Thanks in advance for advise,
    Joel


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Hi Grant,

> > I don't understand why the 32bits kernel crashed with this patche:
> > (gcc-3.3 and binutils-2.13.90)
> 
> uhm...perhaps the 64-bit swap is buggy for 32-bit mode?
> I didn't test that. It's a different code path.

I hope I am not going to anoying you.

I just found related interesting stuff: <http://lwn.net/Articles/38384/>

And may be also the source of pb.

I also write this small testcase to try to point out the pb in 32bits mode:

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <asm/types.h>

typedef unsigned long long u64;
typedef u_int8_t  BOOLEAN;

typedef struct
{
    unsigned char b7, b6, b5, b4, b3, b2, b1, b0;
}
EightBytes;

static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
{
        unsigned int temp;
        __asm__("shd %0, %0, 16, %1\n\t"        /* shift abcdabcd -> cdab
*/
                "dep %1, 15, 8, %1\n\t"         /* deposit cdab -> cbab */
                "shd %0, %1, 8, %0"             /* shift abcdcbab -> dcba
*/
                : "=r" (x), "=&r" (temp)
                : "0" (x));
        return x;
}

#define __arch__swab32(x) ___arch__swab32(x)

static __inline__ __const__ __u64 ___arch__swab64(__u64 x)
{
        __u32 t1 = (__u32) x;
        __u32 t2 = (__u32) ((x) >> 32);
        ___arch__swab32(t1);
        ___arch__swab32(t2);
        return (((__u64) t1 << 32) + ((__u64) t2));
}

static __inline__ __const__ __u32 __fswab32(__u32 x)
{
        return __arch__swab32(x);
}

#  define __swab32(x) __fswab32(x)

static __inline__ __const__ __u64 __fswab64(__u64 x)
{
        __u32 h = x >> 32;
        __u32 l = x & ((1ULL<<32)-1);
        return (((__u64)__swab32(l)) << 32) | ((__u64)(__swab32(h)));
}

int main(int argc, char * * argv, char * * env) {

    unsigned long long TU64;
    int err;

    TU64=0xfedcba9876543210LL;

    printf("Val of TU64: %0Lx\n", TU64);
    printf("Val of ___arch__swab64(TU64): %0Lx\n", ___arch__swab64(TU64));
    printf("Val of __fswab64(TU64): %0Lx\n", __fswab64(TU64));

}

And here is the results:
Val of TU64: fedcba9876543210
Val of ___arch__swab64(TU64): 76543210fedcba98
Val of __fswab64(TU64): 1032547698badcfe

What is right (I could not rebuild with hppa64-linux-gcc :( )?

Thanks,
    Joel


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Subject: [parisc-linux] stifb
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Hi Helge,

I notice some improvement of your stifb in 2.5 (module support). Do you think
feasible the backport to 2.4?

Thanks for advice,
    Joel

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On Tue, Jul 01, 2003 at 06:33:07PM +0200, Joel Soete wrote:
> I hope I am not going to anoying you.

:^)

> I just found related interesting stuff: <http://lwn.net/Articles/38384/>
> And may be also the source of pb.

Maybe our userspace will encounter this problem as well since I've
ripped out the __STRICT_ANSI__ test...can you work this out?


> I also write this small testcase to try to point out the pb in 32bits mode:
...
> And here is the results:
> Val of TU64: fedcba9876543210
> Val of ___arch__swab64(TU64): 76543210fedcba98
> Val of __fswab64(TU64): 1032547698badcfe
> 
> What is right (I could not rebuild with hppa64-linux-gcc :( )?

__fswab64() is correct.
___arch__swab64() didn't actually swap within the  32-bit words.


asm-parisc/byteorder.h has:
static __inline__ __const__ __u64 ___arch__swab64(__u64 x)
{
	__u32 t1 = (__u32) x;
	__u32 t2 = (__u32) ((x) >> 32);
	___arch__swab32(t1);
	___arch__swab32(t2);
	return (((__u64) t2 << 32) + ((__u64) t1));
}


DOH! *smack*
Probably my bad.
That should read:

static __inline__ __const__ __u64 ___arch__swab64(__u64 x)
{
	__u32 t1 = (__u32) x;
	__u32 t2 = (__u32) ((x) >> 32);
	return ((__u64) ___arch__swab32(t1) << 32) + ((__u64) ___arch__swab32(t2));     
}


Could you please test this?

thanks,
grant


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On Tuesday 01 July 2003 19:24, Joel Soete wrote:
> Hi Helge,
>
> I notice some improvement of your stifb in 2.5 (module support). Do you
> think feasible the backport to 2.4?

Hi Joel,

OTOMH I think it doesn't make sense to backport them.
Anyway, I'll take a look at it soon again.

Helge


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Hi Helge,
> >
> > I notice some improvement of your stifb in 2.5 (module support). Do you
> > think feasible the backport to 2.4?
> 
> OTOMH I think it doesn't make sense to backport them.

Because 2.6 will be release soon?

> Anyway, I'll take a look at it soon again.

Thanks but don't spend too much time on this (I would simply know if, according
your opinion, it exists some major issue which avoid to do it).

Thanks again,
    Joel


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> Maybe our userspace will encounter this problem as well since I've
> ripped out the __STRICT_ANSI__ test...can you work this out?

I will see what I can do for this 

> > I also write this small testcase to try to point out the pb in 32bits
mode:
> ...
> > And here is the results:
> > Val of TU64: fedcba9876543210
> > Val of ___arch__swab64(TU64): 76543210fedcba98
> > Val of __fswab64(TU64): 1032547698badcfe
[...]
> __fswab64() is correct.
> ___arch__swab64() didn't actually swap within the  32-bit word
[...]

static __inline__ __const__ __u64 ___arch__swab64(__u64 x)
{
	__u32 t1 = (__u32) x;
	__u32 t2 = (__u32) ((x) >> 32);
	return ((__u64) ___arch__swab32(t1) << 32) + ((__u64) ___arch__swab32(t2))
>     
}

That works for my 32bits kernel on my b2k :-) (just replace 't1' by 'l' and
't2' by 'h' ;) )

btw here is also a small patch I just test also for cdrom pb encounter by
somebody else:
--- system_irqsave.h.orig	2003-07-02 17:34:02.000000000 +0200
+++ system_irqsave.h	2003-07-02 17:35:59.000000000 +0200
@@ -7,8 +7,13 @@
 #define __cli()	__asm__ __volatile__("rsm %0,%%r0\n" : : "i" (PSW_I) : "memory"
)
 #define __sti()	__asm__ __volatile__("ssm %0,%%r0\n" : : "i" (PSW_I) : "memory"
)
 
+#define __save_and_cli(x)  do { __save_flags(x); __cli(); } while(0);
+#define __save_and_sti(x)  do { __save_flags(x); __sti(); } while(0);
+
+/* For spinlocks etc */
 #define local_irq_save(x) \
 	__asm__ __volatile__("rsm %1,%0" : "=r" (x) :"i" (PSW_I) : "memory" )
+#define local_irq_set(x)   __save_and_sti(x)
 #define local_irq_restore(x) \
 	__asm__ __volatile__("mtsm %0" : : "r" (x) : "memory" )
 #define local_irq_disable() __cli()

( may be possible to do better ??)

Joel





---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be



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From - Thu Nov 08 21:28:15 2018
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Subject: [parisc-linux] Where to get precompiled SMP kernel for 2.4.20?
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Hi,

I have installed Debian from netinst CD found at
http://pateam.esiee.fr/cd-images/testing/palinux-2.4.20-pa35-20030513-netinst.iso

Q. Is it possible to get pre-compiled SMP kernel for this version 2.4.20. 

Official Woody release is 2.4.18, any actions with kernel 2.4.18 (even
installing of kernel-source) give the error

Setting up kernel-image-2.4.18-32-smp (12.1) ...
depmod: *** Unresolved symbols in
/lib/modules/2.4.18-32-smp/kernel/net/ipv4/netfilter/ip_tables.o
depmod: *** Unresolved symbols in
/lib/modules/2.4.18-32-smp/kernel/net/ipv4/netfilter/ipchains.o
 
I understand that I can try re-compiling the kernel, but ready-to-go variants
may also fit my needs.

Thanks in advance for your help!

BR,
Dub



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Hi,

> I have installed Debian from netinst CD found at
> http://pateam.esiee.fr/cd-images/testing/palinux-2.4.20-pa35-20030513-netinst.iso
> 
> Q. Is it possible to get pre-compiled SMP kernel for this version 2.4.20.


At least 2.4.20-pa32 at:
<http://ftp.debian.org/debian/pool/main/k/kernel-patch-2.4.20-hppa/>

hth,
    Joel


---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be




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Subject: Re: [parisc-linux] stifb
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Xref: news.gmane.org gmane.linux.ports.parisc:18798

On Wednesday 02 July 2003 08:45, Joel Soete wrote:
> Hi Helge,
>
> > > I notice some improvement of your stifb in 2.5 (module support). Do you
> > > think feasible the backport to 2.4?
> >
> > OTOMH I think it doesn't make sense to backport them.
>
> Because 2.6 will be release soon?

No.
The console code in 2.5.x has a lot of changes which
make modularization possible. This is mostly not available in 2.4.x,
thus backporting makes not that much sense.

> > Anyway, I'll take a look at it soon again.
>
> Thanks but don't spend too much time on this (I would simply know if,
> according your opinion, it exists some major issue which avoid to do it).

Ok.

Helge


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Subject: [parisc-linux] [PATCH 2.5] More serial console hack...
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Xref: news.gmane.org gmane.linux.ports.parisc:18799

Hi all,

Until then, I couldn't get a serial console to work on my C100 when
running 2.5 (2.4 is OK). So I finally had time to look at it...

I just put in the same hack 8250_pci has... Looks horrible, but at
least it allows me to get a working console.

I suppose the real problem is that console_initcall is being called
much too late in the boot process, which leads to all those
PA-specific hacks in 8250*. Is there any plan on how to solve that ?

Regards,

            M.

--- ../vanilla/linux-2.5.73/drivers/serial/8250_gsc.c	2003-07-02 11:10:27.000000000 +0200
+++ linux-current/drivers/serial/8250_gsc.c	2003-07-02 15:24:26.000000000 +0200
@@ -131,6 +131,11 @@
 {
 	register_parisc_driver(&lasi_driver);
 	register_parisc_driver(&serial_driver);
+
+#if defined(CONFIG_SERIAL_8250_CONSOLE)
+        serial8250_console_init();
+#endif
+
 	return 0;
 }
 

-- 
Places change, faces change. Life is so very strange.


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FYI - Works great for SMP on a K260 I have, though it doesn't look to have
the proper console patch included (otherwise known as:  Make sure your
system is setup right before you install the new kernel).  Everything else
looks to work as before.

David

-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Joel
Soete
Sent: Wednesday, July 02, 2003 9:32 AM
To: Dub; parisc-linux@lists.parisc-linux.org
Subject: RE: [parisc-linux] Where to get precompiled SMP kernel for
2.4.20?


Hi,

> I have installed Debian from netinst CD found at
>
http://pateam.esiee.fr/cd-images/testing/palinux-2.4.20-pa35-20030513-netins
t.iso
>
> Q. Is it possible to get pre-compiled SMP kernel for this version 2.4.20.


At least 2.4.20-pa32 at:
<http://ftp.debian.org/debian/pool/main/k/kernel-patch-2.4.20-hppa/>

hth,
    Joel


---------------------------------
Tiscali ADSL: 19,50 euros/mois...abonnez-vous sur www.tiscali.be


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Hi,
   I've recently acquired an RDI Precision Book 160 which is currently
running HP-UX 10.2.  From what I can find in the relevant documentation
it is allegidly completely compatible with the HP B series workstations
and thus should run Linux.  Does anyone have any experience with
installing / running Linux on these?  It is possible?  What devices are
supported?  Is Linux the best choice for this machine?

Cheers,
 - Martin

-- 
Martin
inkubus@interalpha.co.uk
"Seasons change, things come to pass"



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Hi Martin,

>    I've recently acquired an RDI Precision Book 160 which is currently
> running HP-UX 10.2.  From what I can find in the relevant documentation
> it is allegidly completely compatible with the HP B series workstations
> and thus should run Linux.  Does anyone have any experience with
> installing / running Linux on these?  It is possible?  What devices are
> supported?  Is Linux the best choice for this machine?

Yes it works have a look on the thread:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2003-March/019613.html>

hth,
    Joel

------------------------------------------------------
Soldes Tiscali ADSL : 27,50 euros/mois jusque fin 2003.
On s'habitue vite  payer son ADSL moins cher!
Plus d'info? Cliquez ici... http://reg.tiscali.be/default.asp?lg=fr 




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Hi

Seems I have the same problem on a B2000 with the latest cvs'ed version
(2.4.21-pa1)

What am I doing wrong :s??

Regs
Mark


drivers/ide/idedriver.o: In function `init_irq':
drivers/ide/idedriver.o(.text.init_irq+0x44): undefined reference to
`__save_and_cli'
drivers/ide/idedriver.o: In function `ide_wait_stat':
drivers/ide/idedriver.o(.text.ide_wait_stat+0xe0): undefined reference to
`local_irq_set'
drivers/ide/idedriver.o: In function `ide_config_drive_speed':
drivers/ide/idedriver.o(.text.ide_config_drive_speed+0x1c0): undefined
reference to `local_irq_set'
drivers/ide/idedriver.o: In function `taskfile_dump_status':
drivers/ide/idedriver.o(.text.taskfile_dump_status+0x40): undefined
reference to `local_irq_set'
drivers/ide/idedriver.o: In function `ide_dump_status':
drivers/ide/idedriver.o(.text.ide_dump_status+0x40): undefined reference to
`local_irq_set'
drivers/ide/idedriver.o: In function `ide_spin_wait_hwgroup':
drivers/ide/idedriver.o(.text.ide_spin_wait_hwgroup+0x4c): undefined
reference to `local_irq_set'
drivers/ide/idedriver.o(.text.ide_cdrom_dump_status+0x38): more undefined
references to `local_irq_set' follow
make: *** [vmlinux] Error 1

-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Matthew
Wilcox
Sent: dinsdag 1 juli 2003 15:22
To: Mark Mestdagh
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Kernel compilation for J5600


On Tue, Jul 01, 2003 at 10:10:24AM +0200, Mark Mestdagh wrote:
> Grant & others
>
> thanks already for the support. One little problem though is setting up
the
> CDROM. I followed the settings like the c3000 kernel but still I get a
> problem while compiling:
>
> drivers/ide/idedriver.o(.text.probe_hwif+0xfc): undefined reference to
> `local_irq_set'

This is 2.4.21-pa1?

--
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead
bodies.
Do you think I want to have an academic debate on this subject?" -- Robert
Fisk
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On Fri, 4 Jul 2003, Joel Soete wrote:

> Hi Martin,
>
> >    I've recently acquired an RDI Precision Book 160 which is currently
> > running HP-UX 10.2.  From what I can find in the relevant documentation
> > it is allegidly completely compatible with the HP B series workstations
> > and thus should run Linux.  Does anyone have any experience with
> > installing / running Linux on these?  It is possible?  What devices are
> > supported?  Is Linux the best choice for this machine?
>
> Yes it works have a look on the thread:
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2003-March/019613.html>

Yes, I also bought one of these RDI Precisionbooks from eBay (probably
even from the same guy as you did).
It works fine, except I have some problems with the (internal) keyboard,
ie. the control/function keys are mapped somewhat weird, eg. CapsLock = Ctrl.

A second thing is that stifb only works for me if you attach a external
monitor, but sticon works fine with the internal LCD. I suspect that the
stifb driver clears some flag that it should use the internal LCD during
initialization.

If someone is interested I'd sell mine, since I need some money :-/

greetings, Max



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Hi Mark,

> Seems I have the same problem on a B2000 with the latest cvs'ed version
> (2.4.21-pa1)

The problem is not with b2k but well with 2.4.21-pa1 which is refreshed very
recently. But I proposed a fix to Grant who would be able to ci soon.
In the mean time (if you do not need actualy ide support for cd-rom) you
can un-select this temporarely this from your config.

Now for 64bits kernel it works (b2k allows 32 & 64 bits kernels ;-) ).
But for 32bits otc you will need also to wait that Grant ci another patch
(or reverse pa1 patch to come back to pa0).

hth,
    Joel



------------------------------------------------------
Soldes Tiscali ADSL : 27,50 euros/mois jusque fin 2003.
On s'habitue vite  payer son ADSL moins cher!
Plus d'info? Cliquez ici... http://reg.tiscali.be/default.asp?lg=fr 




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Hi binutils lovers,

I can't build a 32-bit parisc kernel with binutils*2.14.90.0.4-0.1_hppa.deb
packages.  It dies with an error in arch/parisc/kernel/real2.S:

real2.S:126: Error: too many positional arguments

The offending line reads:
        load32  PA(save_cr_space + (N_SAVED_REGS * REG_SZ)), %r26

this gets reduced to:
        load32  ((save_cr_space + (9 * 4))-(0x10000000)), %r26


Older binutils*_2.12.90.0.1-4_hppa.deb works.

grant


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Subject: Re: [parisc-linux] binutils_2.14.90 bug
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On Fri, Jul 04, 2003 at 01:10:42PM -0600, Grant Grundler wrote:
...
> Older binutils*_2.12.90.0.1-4_hppa.deb works.

But I now have a dependency problem that dselect flagged:

binutils suggests binutils-doc (= 2.12.90.0.1-4)
gcc-3.3 depends on binutils (>= 2.13.90.0.10)
gcc-3.2 depends on binutils (>= 2.13.90.0.10)

I didn't see binutils*2.13.90.0.10_hppa.deb in the debian pool.
*sigh*

grant


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Hi Grant,

Due to an "improvement" made for the detection of labels on ia64,
the PA assembler no longer tolerants whitespace in the operand field.
The only whitespace that is allowed is after `,'.  So, you need to
remove the whitespace around `+' and `*'.  If you look at the HP
assembler docs, you will see that they never show any whitespace
in the operands field.

Previously, the assembler used to strip the whitespace by default.
The reason that we can strip whitespace after `,' is that `,' never
ends an opcode.

This came up before on this list.

> Hi binutils lovers,
> 
> I can't build a 32-bit parisc kernel with binutils*2.14.90.0.4-0.1_hppa.deb
> packages.  It dies with an error in arch/parisc/kernel/real2.S:
> 
> real2.S:126: Error: too many positional arguments
> 
> The offending line reads:
>         load32  PA(save_cr_space + (N_SAVED_REGS * REG_SZ)), %r26
> 
> this gets reduced to:
>         load32  ((save_cr_space + (9 * 4))-(0x10000000)), %r26
> 
> 
> Older binutils*_2.12.90.0.1-4_hppa.deb works.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Fri, Jul 04, 2003 at 03:29:36PM -0400, John David Anglin wrote:
> Hi Grant,
> 
> Due to an "improvement" made for the detection of labels on ia64,
> the PA assembler no longer tolerants whitespace in the operand field.
> The only whitespace that is allowed is after `,'.  So, you need to
> remove the whitespace around `+' and `*'.  If you look at the HP
> assembler docs, you will see that they never show any whitespace
> in the operands field.

ok. I can fix that. thanks!

grant


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On Tue, Jul 01, 2003 at 04:03:27PM +0200, Joel Soete wrote:
> Or do we actualy need a specific local_irq_set(x)?

We do.
#define local_irq_save(x) \
        __asm__ __volatile__("rsm %1,%0" : "=r" (x) :"i" (PSW_I) : "memory" )
#define local_irq_set(x) \
	__asm__ __volatile__("ssm %1,%0" : "=r" (x) : "i" (PSW_I) : "memory" )

I'll add that as well in my next commit.
Still looking over some of your other changes.

thanks,
grant


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On Fri, Jun 27, 2003 at 06:14:58PM +0200, Joel Soete wrote:
> I need it to make work my ide cdrom onto my b2k (I grab this stuff
> from another platform)


Joel,
I've reworked the __save_and_cli and __save_and_sti mess so that's ok to
commit along with most of what you previously preposed.  I've tested on
64-bit (a500) but am having several problems with 32-bit (c3000) config.

Patch applies to our current CVS:
	ftp://ftp.parisc-linux.org/patches/diff-2.4.21-pa2

My .config and untested kernel/modules are at:
	ftp://ftp.parisc-kernel.org/kernels/c3000/2.4.21-pa2.tgz

Summary of issues that follow:
1) __canonicalize_funcptr_for_compare still a problem with 32-bit modules
2) Makefiles messed up for ide-proc.o	(seems to have a fix already)
3) various IDE modules not exporting symbols.
4) added EXPORT_SYMBOL(sys_wait4) as well.
5) Lack of a test machine at home. Can someone test c3000/2.4.21-pa2.tgz?

Patch also fixes asm problem with arch/parisc/kernel/real2.S.


Details:

1) Dave warned us last December about __canonicalize_funcptr_for_compare
   and gcc-3.3. "make modules_install" fails with this symbol missing in:

   	drivers/ide/ide-disk.o (fixed in patch but won't be committed)
	drivers/scsi/aic79xx/aic79xx.o
	fs/smbfs/smbfs.o
	lib/zlib_deflate/zlib_deflate.o

   Having no clue how to properly fix this in either the toolchain
   or where to find the man page for __canonicalize_funcptr_for_compare(),
   I disabled the last three in my .config and hacked ide-disk.c
   to use (void *) for comparisons.
   Any volunteer to write some sample code for this?
   
2) CONFIG_IDE=m leads to lots of unresolved symbols in IDE modules.
   Willy just pointed me at

   	http://www.ussg.iu.edu/hypermail/linux/kernel/0307.0/0995.html

   which should solve this problem.  The description below is just FYI.
   I'll rework the IDE patch to follow "upstream" fix in the next
   couple of days.

   Basic problem starts with drivers/Makefile:
   	subdir-$(CONFIG_IDE) += ide
   causing the "make vmlinux" to ignore drivers/ide subdir if CONFIG_IDE=m.
   This doesn't work when CONFIG_PROC_FS=y. ide-proc.o doesn't get built.
   drivers/ide/Makefile:
	ifeq($(CONFIG_BLK_DEV_IDE),y)
		obj-$(CONFIG_PROC_FS) += ide-proc.o
	endif

   I hacked  drivers/ide/Makefile to read:
	ifeq ($(CONFIG_PROC_FS),y)
	obj-$(CONFIG_BLK_DEV_IDE)               += ide-proc.o
	endif
   It presumes (1) PROC_FS is y or n and never 'm' and (2) IDE /proc
   support should be loaded as a module if CONFIG_BLK_DEV_IDE=m.


3) various IDE modules not exporting symbols.
	+EXPORT_SYMBOL_GPL(ide_release_dma);
	+EXPORT_SYMBOL(do_ide_request);
	+EXPORT_SYMBOL(ide_modules);
	+EXPORT_SYMBOL(generic_subdriver_entries);
	+EXPORT_SYMBOL(ide_find_setting_by_name);
	+EXPORT_SYMBOL(ide_read_setting);
	+EXPORT_SYMBOL(ide_add_generic_settings);
	+EXPORT_SYMBOL_GPL(ide_scan_pcibus);

4) added EXPORT_SYMBOL(sys_wait4) as well.

5) Lack of a test machine at home. I'm waiting for c3k's I've ordered.
   Nice folks sent me "workstation power cord kit" via priority mail but
   no sign of the workstation itself. :^/
   If someone can test this patch on a C3k, I'd be willing to commit
   the non-IDE parts of it. IDE needs rework to follow upstream's fix.

hth,
grant


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Xref: news.gmane.org gmane.linux.ports.parisc:18813

> 1) Dave warned us last December about __canonicalize_funcptr_for_compare
>    and gcc-3.3. "make modules_install" fails with this symbol missing in:
> 
>    	drivers/ide/ide-disk.o (fixed in patch but won't be committed)
> 	drivers/scsi/aic79xx/aic79xx.o
> 	fs/smbfs/smbfs.o
> 	lib/zlib_deflate/zlib_deflate.o
> 
>    Having no clue how to properly fix this in either the toolchain
>    or where to find the man page for __canonicalize_funcptr_for_compare(),
>    I disabled the last three in my .config and hacked ide-disk.c
>    to use (void *) for comparisons.
>    Any volunteer to write some sample code for this?

Instead of adding (void *) to each comparison, you could add a kernel
version of __canonicalize_funcptr_for_compare:

__canonicalize_funcptr_for_compare:
	bv %r0(%r2)
	copy %r26,%r28

or for PA 2.0

__canonicalize_funcptr_for_compare:
        bve (%r2)
	copy %r26,%r28

I think there was a possible solution along these lines posted on the list
a few months ago (joel?).

This solution assumes that canonicalization is unnecessary in the kernel.
Probably, in most cases it is.  However, if you really need to canonicalize
a function pointer from user space, then you are going to have to figure
out how to call into the dynamic loader from the kernel.  This obviously
isn't very safe.  So, possibly this implies that function pointers passed
in syscalls should be canonicalized before the kernel is entered (i.e.,
glibc should do the canonicalization).

As far as kernel modules go, I don't know how function pointers are
handled.  If you pass a function pointer from one module to another,
does it need canonicalization?  If canonicalization is never necessary
in the kernel, possibly I could add a GCC option to disable canonicalization.

Sorry, about the lack of documentation.  To see what the function does,
it's currently necessary to look in the GCC gcc/config/pa directory.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Sat, Jul 05, 2003 at 07:53:34PM -0400, John David Anglin wrote:
> Instead of adding (void *) to each comparison,

This is just a temporary workaround and I have no plans of committing
any (void *) casts to fix this problem.

> you could add a kernel
> version of __canonicalize_funcptr_for_compare:
> 
> __canonicalize_funcptr_for_compare:
> 	bv %r0(%r2)
> 	copy %r26,%r28
> 
> or for PA 2.0
> 
> __canonicalize_funcptr_for_compare:
>         bve (%r2)
> 	copy %r26,%r28
> 
> I think there was a possible solution along these lines posted on the list
> a few months ago (joel?).

Ok.  I didn't see it when trolling the mail archive.
No matter, I'll try it.
Anyone have an opinion on which arch/parisc file this should go in?

> This solution assumes that canonicalization is unnecessary in the kernel.
> Probably, in most cases it is.  However, if you really need to canonicalize
> a function pointer from user space, then you are going to have to figure
> out how to call into the dynamic loader from the kernel.  This obviously
> isn't very safe.  So, possibly this implies that function pointers passed
> in syscalls should be canonicalized before the kernel is entered (i.e.,
> glibc should do the canonicalization).
> 
> As far as kernel modules go, I don't know how function pointers are
> handled.  If you pass a function pointer from one module to another,
> does it need canonicalization?

I depend on willy/tausq/amodra/et al to understand stuff like this.

> If canonicalization is never necessary
> in the kernel, possibly I could add a GCC option to disable canonicalization.

I think willy suggested privately that might be case.

> Sorry, about the lack of documentation.  To see what the function does,
> it's currently necessary to look in the GCC gcc/config/pa directory.

oh no problem. Kernel has lots of stale/missing documentation too.
Just need guidance on where to find the relevant code and which
path to take.

thanks,
grant


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On Sat, Jul 05, 2003 at 05:08:34PM -0600, Grant Grundler wrote:
> 2) CONFIG_IDE=m leads to lots of unresolved symbols in IDE modules.
>    Willy just pointed me at
> 
>    	http://www.ussg.iu.edu/hypermail/linux/kernel/0307.0/0995.html
> 
>    which should solve this problem.

Alan Cox's "it's a start" patch has problems when applied
to our 2.4.21 tree (diff appended):
...
ld -r -o ide-core.o ide-iops.o ide-taskfile.o ide.o ide-lib.o ide-io.o
ide-default.o ide-proc.o setup-pci.o  ide-dma.o 
ide-default.o(.text.idedefault_init+0x0): In function `init_module':
: multiple definition of `init_module'
ide.o(.text.init_module+0x0): first defined here
make[2]: *** [ide-core.o] Error 1
make[2]: Leaving directory `/home/src/linux/drivers/ide'
...

grundler <507>fgrep module_init *c
...
ide-default.c:module_init(idedefault_init);
...
ide.c:module_init(ide_init);
...
grundler <508>

I gather each .o file is only allowed to have one module_init().
If that a deficiency in parisc build or something else?

thanks,
grant


Index: drivers/ide/Makefile
===================================================================
RCS file: /var/cvs/linux/drivers/ide/Makefile,v
retrieving revision 1.11
diff -u -p -r1.11 Makefile
--- drivers/ide/Makefile	26 Jun 2003 15:07:16 -0000	1.11
+++ drivers/ide/Makefile	6 Jul 2003 05:53:08 -0000
@@ -8,7 +8,6 @@
 # In the future, some of these should be built conditionally.
 #
 
-O_TARGET := idedriver.o
 
 export-objs := ide-iops.o ide-taskfile.o ide-proc.o ide.o ide-probe.o ide-dma.o ide-lib.o setup-pci.o ide-io.o ide-disk.o
 
@@ -29,24 +28,23 @@ endif
 
 # Core IDE code - must come before legacy
 
-obj-$(CONFIG_BLK_DEV_IDE)		+= ide-probe.o ide-geometry.o ide-iops.o ide-taskfile.o ide.o ide-lib.o ide-io.o ide-default.o
-obj-$(CONFIG_BLK_DEV_IDEDISK)		+= ide-disk.o
-obj-$(CONFIG_BLK_DEV_IDECD)		+= ide-cd.o
-obj-$(CONFIG_BLK_DEV_IDETAPE)		+= ide-tape.o
-obj-$(CONFIG_BLK_DEV_IDEFLOPPY)		+= ide-floppy.o
+ide-core-objs := ide-iops.o ide-taskfile.o ide.o ide-lib.o ide-io.o ide-default.o ide-proc.o
+ide-detect-objs := ide-probe.o ide-geometry.o
 
 ifeq ($(CONFIG_BLK_DEV_IDEPCI),y)
-obj-$(CONFIG_BLK_DEV_IDE)		+= setup-pci.o
+ide-core-objs += setup-pci.o 
 endif
 ifeq ($(CONFIG_BLK_DEV_IDEDMA_PCI),y)
-obj-$(CONFIG_BLK_DEV_IDE)		+= ide-dma.o
+ide-core-objs += ide-dma.o 
 endif
-obj-$(CONFIG_BLK_DEV_ISAPNP)		+= ide-pnp.o
-
 
-ifeq ($(CONFIG_BLK_DEV_IDE),y)
-obj-$(CONFIG_PROC_FS)			+= ide-proc.o
-endif
+# Initialisation order:
+# Core sets up
+# Legacy drivers may register a callback
+# Drivers are pre initialised
+# Probe inits the drivers and driver callbacks
+# Raid scans the devices 
+obj-$(CONFIG_BLK_DEV_IDE) += ide-core.o
 
 ifeq ($(CONFIG_BLK_DEV_IDE),y)
   obj-y		+= legacy/idedriver-legacy.o
@@ -58,10 +56,28 @@ else
   endif
 endif
 
+obj-$(CONFIG_BLK_DEV_ISAPNP) += ide-pnp.o
+
+obj-$(CONFIG_BLK_DEV_IDEDISK) += ide-disk.o
+obj-$(CONFIG_BLK_DEV_IDECD) += ide-cd.o
+obj-$(CONFIG_BLK_DEV_IDETAPE) += ide-tape.o
+obj-$(CONFIG_BLK_DEV_IDEFLOPPY) += ide-floppy.o
+
+obj-$(CONFIG_BLK_DEV_IDE) += ide-detect.o 
 
 ifeq ($(CONFIG_BLK_DEV_IDE),y)
 # RAID must be last of all
   obj-y		+= raid/idedriver-raid.o
 endif
 
+list-multi := ide-core.o ide-detect.o
+O_TARGET := idedriver.o
+
 include $(TOPDIR)/Rules.make
+
+ide-core.o: $(ide-core-objs)
+	$(LD) -r -o $@ $(ide-core-objs)
+
+ide-detect.o: $(ide-detect-objs)
+	$(LD) -r -o $@ $(ide-detect-objs)
+


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On Sat, Jul 05, 2003 at 11:57:54PM -0600, Grant Grundler wrote:
> I gather each .o file is only allowed to have one module_init().

My tree builds/links/modules_install now.

Removed ide-default.o from ide-core-objs.
Added the following line after the device (disk/tape/cd) drivers:

obj-$(CONFIG_BLK_DEV_IDE) += ide-default.o

I need to go back and see if the EXPORT_SYMBOLS() I added
to various IDE files are still needed. Not tonight.

I've updated the -pa2 patch at:
	ftp://ftp.parisc-linux.org/patches/diff-2.4.21-pa2

and corresponding binaries/.config at:
	ftp://ftp.parisc-kernel.org/kernels/c3000/2.4.21-pa2.tgz

grant


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On Sul, 2003-07-06 at 07:31, Grant Grundler wrote:
> On Sat, Jul 05, 2003 at 11:57:54PM -0600, Grant Grundler wrote:
> > I gather each .o file is only allowed to have one module_init().
> 
> My tree builds/links/modules_install now.
> 
> Removed ide-default.o from ide-core-objs.
> Added the following line after the device (disk/tape/cd) drivers:
> 
> obj-$(CONFIG_BLK_DEV_IDE) += ide-default.o
> 
> I need to go back and see if the EXPORT_SYMBOLS() I added
> to various IDE files are still needed. Not tonight.

The module patch relies on you having the 2.4.22-pre3 IDE changes for
things like ide-default

$grep init_module drivers/ide/ide-default.c
$



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Grant Grundler wrote:

>On Sat, Jul 05, 2003 at 07:53:34PM -0400, John David Anglin wrote:
>  
>
>>Instead of adding (void *) to each comparison,
>>    
>>
>
>This is just a temporary workaround and I have no plans of committing
>any (void *) casts to fix this problem.
>
>  
>
>>you could add a kernel
>>version of __canonicalize_funcptr_for_compare:
>>
>>__canonicalize_funcptr_for_compare:
>>	bv %r0(%r2)
>>	copy %r26,%r28
>>
>>or for PA 2.0
>>
>>__canonicalize_funcptr_for_compare:
>>        bve (%r2)
>>	copy %r26,%r28
>>
>>I think there was a possible solution along these lines posted on the list
>>a few months ago (joel?).
>>    
>>
Yes I test succesfully (as w-a) some similar solution. (see: 
<http://lists.parisc-linux.org/pipermail/parisc-linux/2003-May/019982.html>) 
but I doubt that it is the right way ...

>Ok.  I didn't see it when trolling the mail archive.
>No matter, I'll try it.
>Anyone have an opinion on which arch/parisc file this should go in?
>  
>
... arch/parisc/lib/fptr.c seems well the right place (what do you think?)
but the rest of EXPORT_SYMBOL was just 'to make it compile' but do not 
sound (please don't ask me to decribe this sound :) ) to me the way it 
have to be (sorry I was waiting more guidance to submit more complete 
work :( )

hth,
    Joel



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Subject: [parisc-linux] Differences PA8500/PA8600
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Xref: news.gmane.org gmane.linux.ports.parisc:18820

  Could someone here on this list might shed some led on where the
differences between these CPUs are?

  I'm wanting to write up sth. on the latter, though I didn't find 
any useful info on the architecture or, for that matter, the
detailed differences to its direct predessor (8500). 

 Both www.cpus.hp.com and google did not find any useful answers,
other than ``better cache algorithm (bla)'' or ``modifications to
make higher clock rates possible''.

  Thanks.


	- paul


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Hi all,

Just compiling kernel 2.4.21-pa01 and unfortunately got following ICE:
gcc -D__KERNEL__ -I/usr/src/kernel-source-2.4.21-pa01-lvm-107-20030704/include
-Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
-fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1 -mschedule=7100
 -D_JFS_4K -nostdinc -I /usr/lib/gcc-lib/hppa-linux/3.3.1/include -DKBUILD_BASENAME=jfs_xtree
 -c -o jfs_xtree.o jfs_xtree.c
jfs_xtree.c: In function `xtUpdate':
jfs_xtree.c:2351: error: insn does not satisfy its constraints:
(insn 7698 1165 1168 29 (nil) (set (reg:SI 24 %r24)
        (reg:SI 88 SAR [427])) 37 {*pa.md:2265} (nil)
    (nil))
jfs_xtree.c:2351: internal compiler error: in reload_cse_simplify_operands,
at reload1.c:8345
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make[3]: *** [jfs_xtree.o] Error 1
make[3]: Leaving directory `/usr/src/kernel-source-2.4.21-pa01-lvm-107-20030704/fs/jfs'
make[2]: *** [first_rule] Error 2
make[2]: Leaving directory `/usr/src/kernel-source-2.4.21-pa01-lvm-107-20030704/fs/jfs'
make[1]: *** [_subdir_jfs] Error 2
make[1]: Leaving directory `/usr/src/kernel-source-2.4.21-pa01-lvm-107-20030704/fs'
make: *** [_dir_fs] Error 2

[gcc -v:
...
gcc version 3.3.1 20030626 (Debian prerealse)

Do I actualy report it?

Thanks for advise,
    Joel


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I am trying to get my 715/50 up and running again but I am having trouble 
with the sti framebuffer.  12 months ago I started to look at this (see
http://lists.parisc-linux.org/hypermail/parisc-linux/8761.html )

I have followed the instructions from that page and have built a kernel 
which is working (2.4.21-pa1).  When I do not build the sti framebuffer, 
the sti console works fine.  When I do build the "Generic STI frame 
buffer device support", everything works except for the image on the 
monitor.  Very early in the kernel boot (before I can read the output) the 
screen goes black.  The serial console works, network, ssh, everything 
works.  If I press the TOC I can see the image that should have been visible
so I am sure that most of it is working.

I tried all the kernel config options, none of which helped.  There are no 
errors from the STI driver.  I am sure there is something simple required 
but I don't know where to look next.

The the relevant dmesg output is below.  Any help would be much 
appreciated.

John.

STI GSC/PCI graphics driver version 0.9
Trying STI ROM at f4000000, hpa at f4000000
STI byte mode ROM at f4000000, hpa at f4000000
selected 8x16 fb-font VGA8x16
STI id 27f12392-40a00499, conforms to spec rev. 8.02
 supports 0 monitors
 font start 00003fd4
 region list 00003fbc
 init_graph 000000c0
 bus support 00
 ext bus support 00
 alternate code type 0
region #0: phys f4000000, virt f4000000, len=252kB, btlb=0, sysonly=0, 
cache=0, last=0
region #1: phys f5000000, virt f5000000, len=16384kB, btlb=1, sysonly=0, 
cache=0, last=0
region #2: phys f4100000, virt f4100000, len=2560kB, btlb=0, sysonly=0, 
cache=0, last=0
region #3: phys f403f000, virt f403f000, len=4kB, btlb=0, sysonly=0, 
cache=0, last=0
region #4: phys f4380000, virt f4380000, len=4kB, btlb=0, sysonly=1, 
cache=0, last=1
3 text planes
1280 x 1024 screen resolution
   0 x    0 offscreen
2048 x 1024 layout
regions at f4000000 f5000000 f4100000 f403f000
regions at f4380000 00000000 00000000 00000000
reent_lvl 0
save_addr 00367c00
monitor 0
in friendly mode: 0
power consumption 0 watts
freq ref 0
sti_mem_addr 00368260 (size=256 bytes)
8 bits per pixel
8 used bits
8 planes
attributes 00000036
STI device: HPA1991AGrayscale
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 27f12392, mmio: 0xf4100000




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On Mon, Jul 07, 2003 at 08:05:25AM +0200, Joel Soete wrote:
> [gcc -v:
> ...
> gcc version 3.3.1 20030626 (Debian prerealse)
> 
> Do I actualy report it?

Yes.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> > 
> > Do I actualy report it?
>
> Yes.
Done:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11453

Joel



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>   Could someone here on this list might shed some led on where the
> differences between these CPUs are?

Don't know.  As far as GCC goes, we treat all 8000 processors the same.
Jeff Law had access to some proprietory information when he did the
DFA scheduling model.  However, that predates the 8600.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Hi Alan,

> >On Gwe, 2003-06-27 at 17:21, Joel Soete wrote:
> > which interfere with your:
> >  	KERN_HPPA_PWRSW=57,	/* int: hppa soft-power enable */
> >  	KERN_HPPA_UNALIGNED=58,	/* int: hppa unaligned-trap enable */
> > };
> > 
> > What to do?
> 
> Get the HP ones into 2.5 then they are fixed "right" values

Ok but now in 2.4.22-pre3:
[...]
  	KERN_EXCEPTION_TRACE=58,	/* boolean: exception trace */
[...]

Thanks for further advise,
    Joel




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On Llu, 2003-07-07 at 17:00, Joel Soete wrote:
> > Get the HP ones into 2.5 then they are fixed "right" values
> 
> Ok but now in 2.4.22-pre3:
> [...]
>   	KERN_EXCEPTION_TRACE=58,	/* boolean: exception trace */
> [...]

Same comment still applies. The 2.5. ones are definitive. If someone
submits a 2.4 one clashing with a different 2.5 one tell Marcelo to
revert it ASAP.



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	Matthew Wilcox <willy@debian.org>,
	HPPA List <parisc-linux@parisc-linux.org>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Marcelo Tosatti <marcelo@conectiva.com.br>
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Marcelo, looks like you have a problem to sort out:

--- ../marcelo-2.4/include/linux/sysctl.h       Thu Jul  3 08:59:18 2003
+++ include/linux/sysctl.h      Mon Jul  7 10:19:02 2003
@@ -124,28 +127,36 @@
        KERN_CORE_USES_PID=52,          /* int: use core or core.%pid */
        KERN_TAINTED=53,        /* int: various kernel tainted flags */
        KERN_CADPID=54,         /* int: PID of the process to notify on CAD */
-       KERN_CORE_PATTERN=56,   /* string: pattern for core-files */
-       KERN_PPC_L3CR=57,       /* l3cr register on PPC */
-       KERN_EXCEPTION_TRACE=58, /* boolean: exception trace */
+       KERN_PIDMAX=55,         /* int: PID # limit */
+       KERN_CORE_PATTERN=56,   /* string: pattern for core-file names */
+       KERN_PANIC_ON_OOPS=57,  /* int: whether we will panic on an oops */
 };

Bad PPC people.  And bad KERN_EXCEPTION_TRACE people, whoever they are.
The PPC one needs to be changed, no matter what.  And the KERN_EXCEPTION
people need to get a sysctl number allocated by Linus.

Looks like the VM people have been naughty too:

-       VM_MAX_MAP_COUNT=11,    /* int: Maximum number of active map areas */
-       VM_MIN_READAHEAD=12,    /* Min file readahead */
-       VM_MAX_READAHEAD=13,    /* Max file readahead */
+       VM_DIRTY_BACKGROUND=11, /* dirty_background_ratio */
+       VM_DIRTY_RATIO=12,      /* dirty_ratio */
+       VM_DIRTY_WB_CS=13,      /* dirty_writeback_centisecs */
+       VM_DIRTY_EXPIRE_CS=14,  /* dirty_expire_centisecs */
+       VM_NR_PDFLUSH_THREADS=15, /* nr_pdflush_threads */
+       VM_OVERCOMMIT_RATIO=16, /* percent of RAM to allow overcommit in */
+       VM_PAGEBUF=17,          /* struct: Control pagebuf parameters */
+       VM_HUGETLB_PAGES=18,    /* int: Number of available Huge Pages */
+       VM_SWAPPINESS=19,       /* Tendency to steal mapped memory */
+       VM_LOWER_ZONE_PROTECTION=20,/* Amount of protection of lower zones */
+       VM_MIN_FREE_KBYTES=21,  /* Minimum free kilobytes to maintain */

SCTP is bad too:

-       NET_KHTTPD=17
+       NET_SCTP=17, 


On Mon, Jul 07, 2003 at 05:05:52PM +0100, Alan Cox wrote:
> On Llu, 2003-07-07 at 17:00, Joel Soete wrote:
> > > Get the HP ones into 2.5 then they are fixed "right" values
> > 
> > Ok but now in 2.4.22-pre3:
> > [...]
> >   	KERN_EXCEPTION_TRACE=58,	/* boolean: exception trace */
> > [...]
> 
> Same comment still applies. The 2.5. ones are definitive. If someone
> submits a 2.4 one clashing with a different 2.5 one tell Marcelo to
> revert it ASAP.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: Re: [parisc-linux] warning: minor abi change
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Alan,

> Same comment still applies. The 2.5. ones are definitive. If someone
> submits a 2.4 one clashing with a different 2.5 one tell Marcelo to
> revert it ASAP.

So I check in last 2.5.74 (co from parisc-linux.org) and it seems that following
patch would be better apply to merge 2.5 and change in 2.4.22-pre2:
===========
--- include/linux/sysctl.h.orig	2003-07-07 19:22:58.000000000 +0200
+++ include/linux/sysctl.h	2003-07-07 19:19:43.000000000 +0200
@@ -126,6 +126,9 @@
 	KERN_CADPID=54,		/* int: PID of the process to notify on CAD */
  	KERN_CORE_PATTERN=56,	/* string: pattern for core-files */
 	KERN_PPC_L3CR=57,       /* l3cr register on PPC */
+ 	KERN_HPPA_PWRSW=58,	/* int: hppa soft-power enable */
+ 	KERN_HPPA_UNALIGNED=59,	/* int: hppa unaligned-trap enable */
+	KERN_EXCEPTION_TRACE=60, /* boolean: exception trace */
 };
 
===========

If it is corect, could you help me to transmit info to Marcelo (I already
tried to send him severall mail but without any feedback so I presume that
he never got it?)

Thanks in advance,
    Joel





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From - Thu Nov 08 21:28:17 2018
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From: "Joel Soete" <jsoe0708@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] warning: minor abi change
Date: Mon, 7 Jul 2003 18:39:24 +0200
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Cc: "Matthew Wilcox" <willy@debian.org>,
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To: "Matthew Wilcox" <willy@debian.org>
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Thanks Willy,

I haven't notice that because merge doesn't complain.
I will so check further.

Joel

>-- Original Message --
>Date: Mon, 7 Jul 2003 17:31:31 +0100
>From: Matthew Wilcox <willy@debian.org>
>To: Marcelo Tosatti <marcelo@conectiva.com.br>
>Cc: Joel Soete <jsoe0708@tiscali.be>, Matthew Wilcox <willy@debian.org>,
>	HPPA List <parisc-linux@parisc-linux.org>,
>	Alan Cox <alan@lxorguk.ukuu.org.uk>
>Subject: Re: [parisc-linux] warning: minor abi change
>
>
>
Marcelo, looks like you have a problem to sort out:

--- ../marcelo-2.4/include/linux/sysctl.h       Thu Jul  3 08:59:18 2003
+++ include/linux/sysctl.h      Mon Jul  7 10:19:02 2003
@@ -124,28 +127,36 @@
        KERN_CORE_USES_PID=52,          
>* int: use core or core.%pid */
        KERN_TAINTED=53,        /* int: various kernel tainted flags */
        KERN_CADPID=54,         /* int: PID of the process to notify on CAD
*/
-       KERN_CORE_PATTERN=56,   /* string: pattern for core-files 
>/
-       KERN_PPC_L3CR=57,       /* l3cr register on PPC */
-       KERN_EXCEPTION_TRACE=58, /* boolean: exception trace */
+       KERN_PIDMAX=55,         /* int: PID # limit */
+       KERN_CORE_PATTERN=56,   /* string: pattern for core-file nam
>s */
+       KERN_PANIC_ON_OOPS=57,  /* int: whether we will panic on an oops
*/
 };

Bad PPC people.  And bad KERN_EXCEPTION_TRACE people, whoever they are.
The PPC one needs to be changed, no matter what.  And the KERN_EXCEPTION
people need to 
>et a sysctl number allocated by Linus.

Looks like the VM people have been naughty too:

-       VM_MAX_MAP_COUNT=11,    /* int: Maximum number of active map areas
*/
-       VM_MIN_READAHEAD=12,    /* Min file readahead */
-       VM_MAX_READAHE
>D=13,    /* Max file readahead */
+       VM_DIRTY_BACKGROUND=11, /* dirty_background_ratio */
+       VM_DIRTY_RATIO=12,      /* dirty_ratio */
+       VM_DIRTY_WB_CS=13,      /* dirty_writeback_centisecs */
+       VM_DIRTY_EXPIRE_CS=14,  /* dirt
>_expire_centisecs */
+       VM_NR_PDFLUSH_THREADS=15, /* nr_pdflush_threads */
+       VM_OVERCOMMIT_RATIO=16, /* percent of RAM to allow overcommit in
*/
+       VM_PAGEBUF=17,          /* struct: Control pagebuf parameters */
+       VM_HUGETLB_
>AGES=18,    /* int: Number of available Huge Pages */
+       VM_SWAPPINESS=19,       /* Tendency to steal mapped memory */
+       VM_LOWER_ZONE_PROTECTION=20,/* Amount of protection of lower zones
*/
+       VM_MIN_FREE_KBYTES=21,  /* Minimum free
>kilobytes to maintain */

SCTP is bad too:

-       NET_KHTTPD=17
+       NET_SCTP=17, 


On Mon, Jul 07, 2003 at 05:05:52PM +0100, Alan Cox wrote:
> On Llu, 2003-07-07 at 17:00, Joel Soete wrote:
> > > Get the HP ones into 2.5 then they are 
>ixed "right" values
> > 
> > Ok but now in 2.4.22-pre3:
> > [...]
> >   	KERN_EXCEPTION_TRACE=58,	/* boolean: exception trace */
> > [...]
> 
> Same comment still applies. The 2.5. ones are definitive. If someone
> submits a 2.4 one clashing wi
>h a different 2.5 one tell Marcelo to
> revert it ASAP.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an aca
>emic debate on this subject?" -- Robert Fisk



------------------------------------------------------
Soldes Tiscali ADSL : 27,50 euros/mois jusque fin 2003.
On s'habitue vite  payer son ADSL moins cher!
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From - Thu Nov 08 21:28:18 2018
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Subject: Re: [parisc-linux] warning: minor abi change
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> > This solution assumes that canonicalization is unnecessary in the kernel.
> > Probably, in most cases it is.  However, if you really need to canonicalize
> > a function pointer from user space, then you are going to have to figure
> > out how to call into the dynamic loader from the kernel.  This obviously
> > isn't very safe.  So, possibly this implies that function pointers passed
> > in syscalls should be canonicalized before the kernel is entered (i.e.,
> > glibc should do the canonicalization).
> > 
> > As far as kernel modules go, I don't know how function pointers are
> > handled.  If you pass a function pointer from one module to another,
> > does it need canonicalization?
> 
> I depend on willy/tausq/amodra/et al to understand stuff like this.

I can't really come up with a scenario where userspace passes a function
pointer to the kernel and has the kernel call or compare the function
pointer?

If someone can, please tell me :)

c.



From - Thu Nov 08 21:28:18 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] warning: minor abi change
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To: carlos@baldric.uwo.ca (Carlos O'Donell)
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> I can't really come up with a scenario where userspace passes a function
> pointer to the kernel and has the kernel call or compare the function
> pointer?

One example is sigaction.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> > I can't really come up with a scenario where userspace passes a function
> > pointer to the kernel and has the kernel call or compare the function
> > pointer?
> 
> One example is sigaction.

Fixable, I can stick a sigaction wrapper in userspace. Should we though?

c.



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accents.</b> 
      For example, an Asian lady (or any nationality) may have communication =
problems 
      with her English when speaking to her friends or business =
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  </li>
</ul>
<div align=3D"left">
  <ul>
    <li><font face=3D"Verdana, Arial, Helvetica, sans-serif" size=3D"2" =
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</body>
</html>  
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Hi Helge,

I comeback to you with stifb in kernel 2.5.74-pa0 this time.

I think I have the bad idea to compile it as builtin; unfortuantely I got
following compiling error:

  LD      vmlinux
drivers/built-in.o(.init.text+0xa778): In function `stifb_init':
: undefined reference to `sti_get_rom'
drivers/built-in.o(.exit.text+0x5d8): In function `stifb_cleanup':
: undefined reference to `sti_get_rom'
make: *** [vmlinux] Error 1

Any idea?

Thanks in advance,
    Joel


------------------------------------------------------
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On s'habitue vite  payer son ADSL moins cher!
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Subject: [parisc-linux] compat code for semtimedop in 2.4?
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malcontents,

Checking the dirtiness of my 2.4 tree has reminded that we need some
sort of compat for semtimedop? Since we don't have an IPC multiplexor
this function call from the glibc side (already written wrapper) calls
this syscall. The number was given out by willy, and matches the 2.5
number. Do we need compat code? *Sigh*

Comments welcome!

Cheers,
Carlos.

---

Index: arch/parisc/kernel/sys_parisc.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/sys_parisc.c,v
retrieving revision 1.14
diff -u -p -r1.14 sys_parisc.c
--- arch/parisc/kernel/sys_parisc.c	23 Nov 2001 21:54:28 -0000	1.14
+++ arch/parisc/kernel/sys_parisc.c	8 Jul 2003 14:17:36 -0000
@@ -256,3 +256,11 @@ int sys_shmctl_broken(int shmid, int cmd
 	return sys_shmctl (shmid, cmd, (struct shmid_ds *)buf);
 }
 
+/* 2.4 compat code required for IPC calls */
+asmlinkage long sys_semtimedop(int semid, struct sembuf *tsops,
+                                unsigned nsops, const struct timespec *timeout)
+{
+	/* FIXME: Need to implement compat? */
+	return -ENOSYS;
+}
+
Index: arch/parisc/kernel/sys_parisc32.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/sys_parisc32.c,v
retrieving revision 1.27
diff -u -p -r1.27 sys_parisc32.c
--- arch/parisc/kernel/sys_parisc32.c	14 Sep 2002 05:14:03 -0000	1.27
+++ arch/parisc/kernel/sys_parisc32.c	8 Jul 2003 14:17:36 -0000
@@ -3104,3 +3104,11 @@ asmlinkage long sys32_semctl_broken(int 
 	return sys_semctl (semid, semnum, cmd, arg);
 }
 
+/* 2.4 compat code required for IPC calls */
+asmlinkage long sys32_semtimedop(int semid, struct sembuf *tsops,
+				unsigned nsops, const struct timespec *timeout)
+{
+	/* FIXME: Possible 32/64 conversions required */
+	/* FIXME: Need to implement compat? */
+	return -ENOSYS;
+}
Index: arch/parisc/kernel/syscall.S
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/syscall.S,v
retrieving revision 1.78
diff -u -p -r1.78 syscall.S
--- arch/parisc/kernel/syscall.S	4 Aug 2002 22:57:47 -0000	1.78
+++ arch/parisc/kernel/syscall.S	8 Jul 2003 14:17:36 -0000
@@ -604,8 +604,31 @@ sys_call_table:
 #endif
 	ENTRY_SAME(gettid)             
 	ENTRY_SAME(readahead)          
-	ENTRY_SAME(tkill)
+	ENTRY_SAME(tkill)		/* 208 */
 
+	/* COMPAT semtimedop call requires the same syscall number
+	across kernel versions. */
+	
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)		/* 210 */
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)		/* 220 */
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_SAME(ni_syscall)
+	ENTRY_DIFF(semtimedop)		/* 228 */
 .end
 
 	/* Make sure nothing else is placed on this page */
Index: include/asm-parisc/unistd.h
===================================================================
RCS file: /var/cvs/linux/include/asm-parisc/unistd.h,v
retrieving revision 1.26
diff -u -p -r1.26 unistd.h
--- include/asm-parisc/unistd.h	4 Aug 2002 22:59:52 -0000	1.26
+++ include/asm-parisc/unistd.h	8 Jul 2003 14:17:39 -0000
@@ -702,6 +702,8 @@
 #define __NR_readahead          (__NR_Linux + 207)
 #define __NR_tkill              (__NR_Linux + 208)
 
+#define __NR_semtimedop         (__NR_Linux + 228)
+
 #define __NR_Linux_syscalls     208
 
 #define HPUX_GATEWAY_ADDR       0xC0000004


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> Builds/links/boots using my c3000 .config.

Same here. Not dying under load either :)

c.



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From: lamont@smallone.fc.hp.com (LaMont Jones)
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Subject: [parisc-linux] byteorder.h patch
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Xref: news.gmane.org gmane.linux.ports.parisc:18839

I guess I should have sent mail...

byteorder.h would try to use __u64 when it wasn't defined (__STRICT_ANSI__).
This is fixed in revision 1.7 of include/asm-parisc/byteorder.h.

lamont

Index: include/asm-parisc/byteorder.h
===================================================================
RCS file: /var/cvs/linux/include/asm-parisc/byteorder.h,v
retrieving revision 1.6
retrieving revision 1.7
diff -u -r1.6 -r1.7
--- include/asm-parisc/byteorder.h	8 Jul 2003 02:22:59 -0000	1.6
+++ include/asm-parisc/byteorder.h	8 Jul 2003 16:50:09 -0000	1.7
@@ -48,7 +48,8 @@
 	return x;
 }
 #define __arch__swab64(x) ___arch__swab64(x)
-#else
+#define __BYTEORDER_HAS_U64__
+#elif !defined(__STRICT_ANSI__)
 static __inline__ __const__ __u64 ___arch__swab64(__u64 x)
 {
 	__u32 t1 = (__u32) x;
@@ -57,12 +58,12 @@
 	___arch__swab32(t2);
 	return (((__u64) ___arch__swab32(t1) << 32) + ((__u64) ___arch__swab32(t2)));
 }
+#define __arch__swab64(x) ___arch__swab64(x)
+#define __BYTEORDER_HAS_U64__
 #endif
 
 #define __arch__swab16(x) ___arch__swab16(x)
 #define __arch__swab32(x) ___arch__swab32(x)
-#define __arch__swab64(x) ___arch__swab64(x)
-#define __BYTEORDER_HAS_U64__
 
 #endif /* __GNUC__ */
 


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Subject: [parisc-linux] Corrections for RAID1 howto and Resyncing after failure
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Hi,

1. The document on 
http://www.parisc-linux.org/faq/raidboot-howto.html
is really great. However, there is one exception

Command from FAQ:
mdadm --create /dev/md0 --level 1 --raid-devices=2 missing /dev/sdb2

Command working with curreny woody release:
mdadm -C /dev/md0 --level raid1 --raid-disks 2 missing /dev/sde2

There is no --raid-devices option in my release!

2. 

I have mirrored boot, swap and root devices on pair of physical disks. I took
off one hot-plug disk and returned it back.
root device did not want to resync even after reboot.


md0 : active raid1 sde2[1] sda2[0]
      33728 blocks [2/2] [UU]
      
md1 : active raid1 sde3[1] sda3[0]
      525248 blocks [2/2] [UU]
      
md2 : active raid1 sda5[0]
      4218752 blocks [2/1] [U_]

I fixed it by command

mdadm /dev/md2 -a /dev/sde5

What's wrong???

Kernel was compiled with CONFIG_HOTPLUG=y


Many thanks in advance for your help!

BR,
Dub


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From: Dub <dub@latnet.lv>
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Subject: [parisc-linux] How to enable LCD screen on K-class?
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Hi,

Woody Debian on my K-class does not show info on status LCD screen after linux
is started. How to configure this feature? LCD is working before OS is loaded,
then everything is black.

Thanks in advance for your help!

BR,
Dub


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>>>>> "Dub" == Dub  <dub@latnet.lv> writes:

Dub> Command from FAQ: mdadm --create /dev/md0 --level 1
Dub> --raid-devices=2 missing /dev/sdb2

Dub> Command working with curreny woody release: mdadm -C /dev/md0
Dub> --level raid1 --raid-disks 2 missing /dev/sde2

Dub> There is no --raid-devices option in my release!

Odd.  I'm running mdadm 1.2.0 and it says:

        allegro:~# mdadm --create --help 2>&1 | grep raid-dev
        Usage:  mdadm --create device -chunk=X --level=Y --raid-devices=Z devices
          --raid-devices= -n : number of active devices in array

Maybe Neil changed it in a later version?


Dub> I have mirrored boot, swap and root devices on pair of physical
Dub> disks. I took off one hot-plug disk and returned it back.  root
Dub> device did not want to resync even after reboot.

Well.  If the disk is no longer part of the metadevice, you manually
have to add it using the mdadm command.

It would be quite dangerous if the RAID code decided to add things to
an array just because a disk is inserted (fine for a storage
appliance, bad idea for a server).

CONFIG_HOTPLUG has nothing to do with it.

-- 
Martin K. Petersen      http://mkp.net/



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From: Helge Deller <deller@gmx.de>
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On Tuesday 08 July 2003 16:06, Joel Soete wrote:
> I think I have the bad idea to compile it as builtin; unfortuantely I got
> following compiling error:
> drivers/built-in.o(.init.text+0xa778): In function `stifb_init':
> : undefined reference to `sti_get_rom'
> drivers/built-in.o(.exit.text+0x5d8): In function `stifb_cleanup':
> : undefined reference to `sti_get_rom'
> Any idea?

Hi Joel,

sorry, I can't reproduce it here with current CVS version....

Helge


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From: lamont@smallone.fc.hp.com (LaMont Jones)
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Subject: [parisc-linux] unaligned.c changes
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I just committed the following changes to unaligned.c, so that we now
handle unaligned floating point loads/stores, as well as getting a bit
better about noticing 64-bit (pa2.0) general register ops on a 32-bit
kernel.

lamont

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Index: arch/parisc/kernel/unaligned.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/unaligned.c,v
retrieving revision 1.15
retrieving revision 1.16
diff -u -r1.15 -r1.16
--- arch/parisc/kernel/unaligned.c	26 Jan 2003 20:59:10 -0000	1.15
+++ arch/parisc/kernel/unaligned.c	9 Jul 2003 05:15:20 -0000	1.16
@@ -92,6 +92,15 @@
 #define OPCODE_STWA	OPCODE1(0x03,1,0xe)
 #define OPCODE_STDA	OPCODE1(0x03,1,0xf)
 
+#define OPCODE_FLDWX	OPCODE1(0x09,0,0x0)
+#define OPCODE_FSTWX	OPCODE1(0x09,0,0x4)
+#define OPCODE_FLDWS	OPCODE1(0x09,1,0x0)
+#define OPCODE_FSTWS	OPCODE1(0x09,1,0x4)
+#define OPCODE_FLDDX	OPCODE1(0x0b,0,0x0)
+#define OPCODE_FSTDX	OPCODE1(0x0b,0,0x4)
+#define OPCODE_FLDDS	OPCODE1(0x0b,1,0x0)
+#define OPCODE_FSTDS	OPCODE1(0x0b,1,0x4)
+
 #define OPCODE_LDD_L	OPCODE2(0x14,0)
 #define OPCODE_FLDD_L	OPCODE2(0x14,1)
 #define OPCODE_STD_L	OPCODE2(0x1c,0)
@@ -113,6 +122,7 @@
 #define R1(i) (((i)>>21)&0x1f)
 #define R2(i) (((i)>>16)&0x1f)
 #define R3(i) ((i)&0x1f)
+#define FR3(i) ((((i)<<1)&0x1f)|(((i)>>6)&1))
 #define IM(i,n) (((i)>>1&((1<<(n-1))-1))|((i)&1?((0-1L)<<(n-1)):0))
 #define IM5_2(i) IM((i)>>16,5)
 #define IM5_3(i) IM((i),5)
@@ -146,7 +156,7 @@
 
 	return 0;
 }
-static int emulate_ldw(struct pt_regs *regs, int toreg)
+static int emulate_ldw(struct pt_regs *regs, int toreg, int flop)
 {
 	unsigned long saddr = regs->ior;
 	unsigned long val = 0;
@@ -169,20 +179,26 @@
 
 	DPRINTF("val = 0x" RFMT "\n", val);
 
-	if (toreg)
+	if (flop)
+		((__u32*)(regs->fr))[toreg] = val;
+	else if (toreg)
 		regs->gr[toreg] = val;
 
 	return 0;
 }
-#ifdef __LP64__
-static int emulate_ldd(struct pt_regs *regs, int toreg)
+static int emulate_ldd(struct pt_regs *regs, int toreg, int flop)
 {
 	unsigned long saddr = regs->ior;
-	unsigned long val = 0;
+	__u64 val = 0;
 
 	DPRINTF("load " RFMT ":" RFMT " to r%d for 8 bytes\n", 
 		regs->isr, regs->ior, toreg);
+#ifdef CONFIG_PA20
 
+#ifndef __LP64__
+	if (!flop)
+		return -1;
+#endif
 	__asm__ __volatile__  (
 "	depd,z	%2,60,3,%%r19\n"		/* r19=(ofs&7)*8 */
 "	mtsp	%3, %%sr1\n"
@@ -195,15 +211,36 @@
 	: "=r" (val)
 	: "0" (val), "r" (saddr), "r" (regs->isr)
 	: "r19", "r20" );
+#else
+    {
+	unsigned long valh=0,vall=0;
+	__asm__ __volatile__  (
+"	zdep	%4,29,2,%%r19\n"		/* r19=(ofs&3)*8 */
+"	mtsp	%5, %%sr1\n"
+"	dep	%%r0,31,2,%4\n"
+"	ldw	0(%%sr1,%5),%0\n"
+"	ldw	4(%%sr1,%5),%1\n"
+"	ldw	8(%%sr1,%5),%%r20\n"
+"	subi	32,%%r19,%%r19\n"
+"	mtsar	%%r19\n"
+"	vshd	%0,%1,%0\n"
+"	vshd	%1,%%r20,%1\n"
+	: "=r" (valh), "=r" (vall)
+	: "0" (valh), "1" (vall), "r" (saddr), "r" (regs->isr)
+	: "r19", "r20" );
+	val=((__u64)valh<<32)|(__u64)vall;
+    }
+#endif
 
 	DPRINTF("val = 0x" RFMT "\n", val);
 
-	if (toreg)
+	if (flop)
+		regs->fr[toreg] = val;
+	else if (toreg)
 		regs->gr[toreg] = val;
 
 	return 0;
 }
-#endif
 
 static int emulate_sth(struct pt_regs *regs, int frreg)
 {
@@ -212,7 +249,7 @@
 		val = 0;
 
 	DPRINTF("store r%d (0x" RFMT ") to " RFMT ":" RFMT " for 2 bytes\n", frreg, 
-		regs->gr[frreg], regs->isr, regs->ior);
+		val, regs->isr, regs->ior);
 
 	__asm__ __volatile__ (
 "	mtsp %2, %%sr1\n"
@@ -225,14 +262,19 @@
 
 	return 0;
 }
-static int emulate_stw(struct pt_regs *regs, int frreg)
+static int emulate_stw(struct pt_regs *regs, int frreg, int flop)
 {
-	unsigned long val = regs->gr[frreg];
-	if (!frreg)
+	unsigned long val;
+
+	if (flop)
+		val = ((__u32*)(regs->fr))[frreg];
+	else if (frreg)
+		val = regs->gr[frreg];
+	else
 		val = 0;
 
 	DPRINTF("store r%d (0x" RFMT ") to " RFMT ":" RFMT " for 4 bytes\n", frreg, 
-		regs->gr[frreg], regs->isr, regs->ior);
+		val, regs->isr, regs->ior);
 
 
 	__asm__ __volatile__ (
@@ -257,17 +299,25 @@
 
 	return 0;
 }
-#ifdef __LP64__
-static int emulate_std(struct pt_regs *regs, int frreg)
+static int emulate_std(struct pt_regs *regs, int frreg, int flop)
 {
-	unsigned long val = regs->gr[frreg];
-	if (!frreg)
-		val = 0;
+	__u64 val;
 
-	DPRINTF("store r%d (0x" RFMT ") to " RFMT ":" RFMT " for 8 bytes\n", frreg, 
-		regs->gr[frreg], regs->isr, regs->ior);
+	if (flop)
+		val = regs->fr[frreg];
+	else if (frreg)
+		val = regs->gr[frreg];
+	else
+		val = 0;
 
+	DPRINTF("store r%d (0x" %016llx ") to " RFMT ":" RFMT " for 8 bytes\n", frreg, 
+		val,  regs->isr, regs->ior);
 
+#ifdef CONFIG_PA20
+#ifndef __LP64__
+	if (!flop)
+		return -1;
+#endif
 	__asm__ __volatile__ (
 "	mtsp %2, %%sr1\n"
 "	depd,z	%1, 60, 3, %%r19\n"
@@ -287,19 +337,45 @@
 	:
 	: "r" (val), "r" (regs->ior), "r" (regs->isr)
 	: "r19", "r20", "r21", "r22", "r1" );
+#else
+    {
+	unsigned long valh=(val>>32),vall=(val&0xffffffffl);
+	__asm__ __volatile__ (
+"	mtsp	%3, %%sr1\n"
+"	zdep	%1, 29, 2, %%r19\n"
+"	dep	%%r0, 31, 2, %1\n"
+"	mtsar	%%r19\n"
+"	zvdepi	-2, 32, %%r19\n"
+"	ldw	0(%%sr1,%2),%%r20\n"
+"	ldw	8(%%sr1,%2),%%r21\n"
+"	vshd	%0, %1, %%r1\n"
+"	vshd	%%r0, %0, %0\n"
+"	vshd	%1, %%r0, %1\n"
+"	and	%%r20, %%r19, %%r20\n"
+"	andcm	%%r21, %%r19, %%r21\n"
+"	or	%0, %%r20, %0\n"
+"	or	%1, %%r21, %1\n"
+"	stw	%0,0(%%sr1,%2)\n"
+"	stw	%%r1,4(%%sr1,%2)\n"
+"	stw	%1,8(%%sr1,%2)\n"
+	:
+	: "r" (valh), "r" (vall), "r" (regs->ior), "r" (regs->isr)
+	: "r19", "r20", "r21", "r1" );
+    }
+#endif
 
 	return 0;
 }
-#endif
 
 void handle_unaligned(struct pt_regs *regs)
 {
 	unsigned long unaligned_count = 0;
 	unsigned long last_time = 0;
-	unsigned long newbase = regs->gr[R1(regs->iir)];
+        unsigned long newbase = R1(regs->iir)?regs->gr[R1(regs->iir)]:0;
 	int modify = 0;
 	int ret = -1;
 	struct siginfo si;
+	register int flop=0;	/* true if this is a flop */
 
 	/* if the unaligned access is inside the kernel:
 	 *   if the access is caused by a syscall, then we fault the calling
@@ -438,7 +514,7 @@
 	case OPCODE_LDWA_I:
 	case OPCODE_LDW_S:
 	case OPCODE_LDWA_S:
-		ret = emulate_ldw(regs, R3(regs->iir));
+		ret = emulate_ldw(regs, R3(regs->iir),0);
 		break;
 
 	case OPCODE_STH:
@@ -447,23 +523,47 @@
 
 	case OPCODE_STW:
 	case OPCODE_STWA:
-		ret = emulate_stw(regs, R2(regs->iir));
+		ret = emulate_stw(regs, R2(regs->iir),0);
 		break;
 
-#ifdef __LP64__
+#ifdef CONFIG_PA20
 	case OPCODE_LDD_I:
 	case OPCODE_LDDA_I:
 	case OPCODE_LDD_S:
 	case OPCODE_LDDA_S:
-		ret = emulate_ldd(regs, R3(regs->iir));
+		ret = emulate_ldd(regs, R3(regs->iir),0);
 		break;
 
 	case OPCODE_STD:
 	case OPCODE_STDA:
-		ret = emulate_std(regs, R2(regs->iir));
+		ret = emulate_std(regs, R2(regs->iir),0);
 		break;
 #endif
 
+	case OPCODE_FLDWX:
+	case OPCODE_FLDWS:
+		flop=1;
+		ret = emulate_ldw(regs,FR3(regs->iir),1);
+		break;
+
+	case OPCODE_FLDDX:
+	case OPCODE_FLDDS:
+		flop=1;
+		ret = emulate_ldd(regs,R3(regs->iir),1);
+		break;
+
+	case OPCODE_FSTWX:
+	case OPCODE_FSTWS:
+		flop=1;
+		ret = emulate_stw(regs,FR3(regs->iir),1);
+		break;
+
+	case OPCODE_FSTDX:
+	case OPCODE_FSTDS:
+		flop=1;
+		ret = emulate_std(regs,R3(regs->iir),1);
+		break;
+
 	case OPCODE_LDCD_I:
 	case OPCODE_LDCW_I:
 	case OPCODE_LDCD_S:
@@ -471,30 +571,44 @@
 		ret = -1;	/* "undefined", but lets kill them. */
 		break;
 	}
-#ifdef __LP64__
+#ifdef CONFIG_PA20
 	switch (regs->iir & OPCODE2_MASK)
 	{
-	case OPCODE_LDD_L:
 	case OPCODE_FLDD_L:
-		ret = emulate_ldd(regs, R2(regs->iir));
+		flop=1;
+		ret = emualate_ldd(regs,R2(regs->iir),1);
+		break;
+	case OPCODE_FSTD_L:
+		flop=1;
+		ret = emulate_std(regs, R2(regs->iir),1);
 		break;
 
+#ifdef CONFIG_PA20
+	case OPCODE_LDD_L:
+		ret = emulate_ldd(regs, R2(regs->iir),0);
+		break;
 	case OPCODE_STD_L:
-	case OPCODE_FSTD_L:
-		ret = emulate_std(regs, R2(regs->iir));
+		ret = emulate_std(regs, R2(regs->iir),0);
 		break;
+#endif
 	}
 #endif
 	switch (regs->iir & OPCODE3_MASK)
 	{
-	case OPCODE_LDW_M:
 	case OPCODE_FLDW_L:
-		ret = emulate_ldw(regs, R2(regs->iir));
+		flop=1;
+		ret = emulate_ldw(regs, R2(regs->iir),0);
+		break;
+	case OPCODE_LDW_M:
+		ret = emulate_ldw(regs, R2(regs->iir),1);
 		break;
 
 	case OPCODE_FSTW_L:
+		flop=1;
+		ret = emulate_stw(regs, R2(regs->iir),1);
+		break;
 	case OPCODE_STW_M:
-		ret = emulate_stw(regs, R2(regs->iir));
+		ret = emulate_stw(regs, R2(regs->iir),0);
 		break;
 	}
 	switch (regs->iir & OPCODE4_MASK)
@@ -504,17 +618,16 @@
 		break;
 	case OPCODE_LDW_L:
 	case OPCODE_LDWM:
-		ret = emulate_ldw(regs, R2(regs->iir));
+		ret = emulate_ldw(regs, R2(regs->iir),0);
 		break;
 	case OPCODE_STH_L:
 		ret = emulate_sth(regs, R2(regs->iir));
 		break;
 	case OPCODE_STW_L:
 	case OPCODE_STWM:
-		ret = emulate_stw(regs, R2(regs->iir));
+		ret = emulate_stw(regs, R2(regs->iir),0);
 		break;
 	}
-	/* XXX LJ - need to handle float load/store */
 
 	if (modify && R1(regs->iir))
 		regs->gr[R1(regs->iir)] = newbase;
@@ -540,9 +653,8 @@
 		return;
 	}
 
-	/* else we handled it, advance the PC.... */
-	regs->iaoq[0] = regs->iaoq[1];
-	regs->iaoq[1] = regs->iaoq[0] + 4;
+	/* else we handled it, let life go on. */
+	regs->gr[0]|=PSW_N;
 }
 
 /*

--GvXjxJ+pjyke8COw
Content-Type: text/plain; charset=us-ascii
Content-Description: 2.5 patch
Content-Disposition: attachment; filename="2.5"

Index: arch/parisc/kernel/unaligned.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/unaligned.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -r1.4 -r1.5
--- arch/parisc/kernel/unaligned.c	12 Jan 2003 08:24:26 -0000	1.4
+++ arch/parisc/kernel/unaligned.c	9 Jul 2003 05:15:38 -0000	1.5
@@ -92,6 +92,15 @@
 #define OPCODE_STWA	OPCODE1(0x03,1,0xe)
 #define OPCODE_STDA	OPCODE1(0x03,1,0xf)
 
+#define OPCODE_FLDWX	OPCODE1(0x09,0,0x0)
+#define OPCODE_FSTWX	OPCODE1(0x09,0,0x4)
+#define OPCODE_FLDWS	OPCODE1(0x09,1,0x0)
+#define OPCODE_FSTWS	OPCODE1(0x09,1,0x4)
+#define OPCODE_FLDDX	OPCODE1(0x0b,0,0x0)
+#define OPCODE_FSTDX	OPCODE1(0x0b,0,0x4)
+#define OPCODE_FLDDS	OPCODE1(0x0b,1,0x0)
+#define OPCODE_FSTDS	OPCODE1(0x0b,1,0x4)
+
 #define OPCODE_LDD_L	OPCODE2(0x14,0)
 #define OPCODE_FLDD_L	OPCODE2(0x14,1)
 #define OPCODE_STD_L	OPCODE2(0x1c,0)
@@ -113,6 +122,7 @@
 #define R1(i) (((i)>>21)&0x1f)
 #define R2(i) (((i)>>16)&0x1f)
 #define R3(i) ((i)&0x1f)
+#define FR3(i) ((((i)<<1)&0x1f)|(((i)>>6)&1))
 #define IM(i,n) (((i)>>1&((1<<(n-1))-1))|((i)&1?((0-1L)<<(n-1)):0))
 #define IM5_2(i) IM((i)>>16,5)
 #define IM5_3(i) IM((i),5)
@@ -146,7 +156,7 @@
 
 	return 0;
 }
-static int emulate_ldw(struct pt_regs *regs, int toreg)
+static int emulate_ldw(struct pt_regs *regs, int toreg, int flop)
 {
 	unsigned long saddr = regs->ior;
 	unsigned long val = 0;
@@ -169,20 +179,26 @@
 
 	DPRINTF("val = 0x" RFMT "\n", val);
 
-	if (toreg)
+	if (flop)
+		((__u32*)(regs->fr))[toreg] = val;
+	else if (toreg)
 		regs->gr[toreg] = val;
 
 	return 0;
 }
-#ifdef __LP64__
-static int emulate_ldd(struct pt_regs *regs, int toreg)
+static int emulate_ldd(struct pt_regs *regs, int toreg, int flop)
 {
 	unsigned long saddr = regs->ior;
-	unsigned long val = 0;
+	__u64 val = 0;
 
 	DPRINTF("load " RFMT ":" RFMT " to r%d for 8 bytes\n", 
 		regs->isr, regs->ior, toreg);
+#ifdef CONFIG_PA20
 
+#ifndef __LP64__
+	if (!flop)
+		return -1;
+#endif
 	__asm__ __volatile__  (
 "	depd,z	%2,60,3,%%r19\n"		/* r19=(ofs&7)*8 */
 "	mtsp	%3, %%sr1\n"
@@ -195,15 +211,36 @@
 	: "=r" (val)
 	: "0" (val), "r" (saddr), "r" (regs->isr)
 	: "r19", "r20" );
+#else
+    {
+	unsigned long valh=0,vall=0;
+	__asm__ __volatile__  (
+"	zdep	%4,29,2,%%r19\n"		/* r19=(ofs&3)*8 */
+"	mtsp	%5, %%sr1\n"
+"	dep	%%r0,31,2,%4\n"
+"	ldw	0(%%sr1,%5),%0\n"
+"	ldw	4(%%sr1,%5),%1\n"
+"	ldw	8(%%sr1,%5),%%r20\n"
+"	subi	32,%%r19,%%r19\n"
+"	mtsar	%%r19\n"
+"	vshd	%0,%1,%0\n"
+"	vshd	%1,%%r20,%1\n"
+	: "=r" (valh), "=r" (vall)
+	: "0" (valh), "1" (vall), "r" (saddr), "r" (regs->isr)
+	: "r19", "r20" );
+	val=((__u64)valh<<32)|(__u64)vall;
+    }
+#endif
 
 	DPRINTF("val = 0x" RFMT "\n", val);
 
-	if (toreg)
+	if (flop)
+		regs->fr[toreg] = val;
+	else if (toreg)
 		regs->gr[toreg] = val;
 
 	return 0;
 }
-#endif
 
 static int emulate_sth(struct pt_regs *regs, int frreg)
 {
@@ -212,7 +249,7 @@
 		val = 0;
 
 	DPRINTF("store r%d (0x" RFMT ") to " RFMT ":" RFMT " for 2 bytes\n", frreg, 
-		regs->gr[frreg], regs->isr, regs->ior);
+		val, regs->isr, regs->ior);
 
 	__asm__ __volatile__ (
 "	mtsp %2, %%sr1\n"
@@ -225,14 +262,19 @@
 
 	return 0;
 }
-static int emulate_stw(struct pt_regs *regs, int frreg)
+static int emulate_stw(struct pt_regs *regs, int frreg, int flop)
 {
-	unsigned long val = regs->gr[frreg];
-	if (!frreg)
+	unsigned long val;
+
+	if (flop)
+		val = ((__u32*)(regs->fr))[frreg];
+	else if (frreg)
+		val = regs->gr[frreg];
+	else
 		val = 0;
 
 	DPRINTF("store r%d (0x" RFMT ") to " RFMT ":" RFMT " for 4 bytes\n", frreg, 
-		regs->gr[frreg], regs->isr, regs->ior);
+		val, regs->isr, regs->ior);
 
 
 	__asm__ __volatile__ (
@@ -257,17 +299,25 @@
 
 	return 0;
 }
-#ifdef __LP64__
-static int emulate_std(struct pt_regs *regs, int frreg)
+static int emulate_std(struct pt_regs *regs, int frreg, int flop)
 {
-	unsigned long val = regs->gr[frreg];
-	if (!frreg)
-		val = 0;
+	__u64 val;
 
-	DPRINTF("store r%d (0x" RFMT ") to " RFMT ":" RFMT " for 8 bytes\n", frreg, 
-		regs->gr[frreg], regs->isr, regs->ior);
+	if (flop)
+		val = regs->fr[frreg];
+	else if (frreg)
+		val = regs->gr[frreg];
+	else
+		val = 0;
 
+	DPRINTF("store r%d (0x" %016llx ") to " RFMT ":" RFMT " for 8 bytes\n", frreg, 
+		val,  regs->isr, regs->ior);
 
+#ifdef CONFIG_PA20
+#ifndef __LP64__
+	if (!flop)
+		return -1;
+#endif
 	__asm__ __volatile__ (
 "	mtsp %2, %%sr1\n"
 "	depd,z	%1, 60, 3, %%r19\n"
@@ -287,19 +337,45 @@
 	:
 	: "r" (val), "r" (regs->ior), "r" (regs->isr)
 	: "r19", "r20", "r21", "r22", "r1" );
+#else
+    {
+	unsigned long valh=(val>>32),vall=(val&0xffffffffl);
+	__asm__ __volatile__ (
+"	mtsp	%3, %%sr1\n"
+"	zdep	%1, 29, 2, %%r19\n"
+"	dep	%%r0, 31, 2, %1\n"
+"	mtsar	%%r19\n"
+"	zvdepi	-2, 32, %%r19\n"
+"	ldw	0(%%sr1,%2),%%r20\n"
+"	ldw	8(%%sr1,%2),%%r21\n"
+"	vshd	%0, %1, %%r1\n"
+"	vshd	%%r0, %0, %0\n"
+"	vshd	%1, %%r0, %1\n"
+"	and	%%r20, %%r19, %%r20\n"
+"	andcm	%%r21, %%r19, %%r21\n"
+"	or	%0, %%r20, %0\n"
+"	or	%1, %%r21, %1\n"
+"	stw	%0,0(%%sr1,%2)\n"
+"	stw	%%r1,4(%%sr1,%2)\n"
+"	stw	%1,8(%%sr1,%2)\n"
+	:
+	: "r" (valh), "r" (vall), "r" (regs->ior), "r" (regs->isr)
+	: "r19", "r20", "r21", "r1" );
+    }
+#endif
 
 	return 0;
 }
-#endif
 
 void handle_unaligned(struct pt_regs *regs)
 {
 	unsigned long unaligned_count = 0;
 	unsigned long last_time = 0;
-	unsigned long newbase = regs->gr[R1(regs->iir)];
+	unsigned long newbase = R1(regs->iir)?regs->gr[R1(regs->iir)]:0;
 	int modify = 0;
 	int ret = -1;
 	struct siginfo si;
+	register int flop=0;	/* true if this is a flop */
 
 	/* if the unaligned access is inside the kernel:
 	 *   if the access is caused by a syscall, then we fault the calling
@@ -383,9 +459,9 @@
 				case OPCODE_LDDA_I:
 					shift= 3; break;
 				}
-				newbase += regs->gr[R2(regs->iir)]<<shift;
+				newbase += (R2(regs->iir)?regs->gr[R2(regs->iir)]:0)<<shift;
 			} else				/* simple indexed */
-				newbase += regs->gr[R2(regs->iir)];
+				newbase += (R2(regs->iir)?regs->gr[R2(regs->iir)]:0);
 		}
 		break;
 	case 0x13:
@@ -438,7 +514,7 @@
 	case OPCODE_LDWA_I:
 	case OPCODE_LDW_S:
 	case OPCODE_LDWA_S:
-		ret = emulate_ldw(regs, R3(regs->iir));
+		ret = emulate_ldw(regs, R3(regs->iir),0);
 		break;
 
 	case OPCODE_STH:
@@ -447,23 +523,47 @@
 
 	case OPCODE_STW:
 	case OPCODE_STWA:
-		ret = emulate_stw(regs, R2(regs->iir));
+		ret = emulate_stw(regs, R2(regs->iir),0);
 		break;
 
-#ifdef __LP64__
+#ifdef CONFIG_PA20
 	case OPCODE_LDD_I:
 	case OPCODE_LDDA_I:
 	case OPCODE_LDD_S:
 	case OPCODE_LDDA_S:
-		ret = emulate_ldd(regs, R3(regs->iir));
+		ret = emulate_ldd(regs, R3(regs->iir),0);
 		break;
 
 	case OPCODE_STD:
 	case OPCODE_STDA:
-		ret = emulate_std(regs, R2(regs->iir));
+		ret = emulate_std(regs, R2(regs->iir),0);
 		break;
 #endif
 
+	case OPCODE_FLDWX:
+	case OPCODE_FLDWS:
+		flop=1;
+		ret = emulate_ldw(regs,FR3(regs->iir),1);
+		break;
+
+	case OPCODE_FLDDX:
+	case OPCODE_FLDDS:
+		flop=1;
+		ret = emulate_ldd(regs,R3(regs->iir),1);
+		break;
+
+	case OPCODE_FSTWX:
+	case OPCODE_FSTWS:
+		flop=1;
+		ret = emulate_stw(regs,FR3(regs->iir),1);
+		break;
+
+	case OPCODE_FSTDX:
+	case OPCODE_FSTDS:
+		flop=1;
+		ret = emulate_std(regs,R3(regs->iir),1);
+		break;
+
 	case OPCODE_LDCD_I:
 	case OPCODE_LDCW_I:
 	case OPCODE_LDCD_S:
@@ -471,30 +571,44 @@
 		ret = -1;	/* "undefined", but lets kill them. */
 		break;
 	}
-#ifdef __LP64__
+#ifdef CONFIG_PA20
 	switch (regs->iir & OPCODE2_MASK)
 	{
-	case OPCODE_LDD_L:
 	case OPCODE_FLDD_L:
-		ret = emulate_ldd(regs, R2(regs->iir));
+		flop=1;
+		ret = emualate_ldd(regs,R2(regs->iir),1);
+		break;
+	case OPCODE_FSTD_L:
+		flop=1;
+		ret = emulate_std(regs, R2(regs->iir),1);
 		break;
 
+#ifdef CONFIG_PA20
+	case OPCODE_LDD_L:
+		ret = emulate_ldd(regs, R2(regs->iir),0);
+		break;
 	case OPCODE_STD_L:
-	case OPCODE_FSTD_L:
-		ret = emulate_std(regs, R2(regs->iir));
+		ret = emulate_std(regs, R2(regs->iir),0);
 		break;
+#endif
 	}
 #endif
 	switch (regs->iir & OPCODE3_MASK)
 	{
-	case OPCODE_LDW_M:
 	case OPCODE_FLDW_L:
-		ret = emulate_ldw(regs, R2(regs->iir));
+		flop=1;
+		ret = emulate_ldw(regs, R2(regs->iir),0);
+		break;
+	case OPCODE_LDW_M:
+		ret = emulate_ldw(regs, R2(regs->iir),1);
 		break;
 
 	case OPCODE_FSTW_L:
+		flop=1;
+		ret = emulate_stw(regs, R2(regs->iir),1);
+		break;
 	case OPCODE_STW_M:
-		ret = emulate_stw(regs, R2(regs->iir));
+		ret = emulate_stw(regs, R2(regs->iir),0);
 		break;
 	}
 	switch (regs->iir & OPCODE4_MASK)
@@ -504,19 +618,18 @@
 		break;
 	case OPCODE_LDW_L:
 	case OPCODE_LDWM:
-		ret = emulate_ldw(regs, R2(regs->iir));
+		ret = emulate_ldw(regs, R2(regs->iir),0);
 		break;
 	case OPCODE_STH_L:
 		ret = emulate_sth(regs, R2(regs->iir));
 		break;
 	case OPCODE_STW_L:
 	case OPCODE_STWM:
-		ret = emulate_stw(regs, R2(regs->iir));
+		ret = emulate_stw(regs, R2(regs->iir),0);
 		break;
 	}
-	/* XXX LJ - need to handle float load/store */
 
-	if (modify)
+	if (modify && R1(regs->iir))
 		regs->gr[R1(regs->iir)] = newbase;
 
 
@@ -540,9 +653,8 @@
 		return;
 	}
 
-	/* else we handled it, advance the PC.... */
-	regs->iaoq[0] = regs->iaoq[1];
-	regs->iaoq[1] = regs->iaoq[0] + 4;
+	/* else we handled it, let life go on. */
+	regs->gr[0]|=PSW_N;
 }
 
 /*

--GvXjxJ+pjyke8COw--


From - Thu Nov 08 21:28:19 2018
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Subject: [parisc-linux] RAID howto and Palo version
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Hi,

> 1. The document on=20
> http://www.parisc-linux.org/faq/raidboot-howto.html
> is really great. However, there is one exception


Raidboot-howto says that I have to grab CVS version of palo to boot from =
RAID partitions.=20
Currently I have "palo version 1.2 bame@b2000 Tue Jan 14 13:13:18 MST =
2003".=20
Is this version capable to boot from RAID partitions?

Thanks for a great howto!

Kai K=E4p=F6l=E4


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Subject: RE: [parisc-linux] RAID howto and Palo version
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> Currently I have "palo version 1.2 bame@b2000 Tue Jan 14 13:13:18 MST 2003".

> Is this version capable to boot from RAID partitions?

Yes it works fine for a long time ago for me now :-)

hth,
    Joel

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> It would be quite dangerous if the RAID code decided to add things
> to an array just because a disk is inserted (fine for a storage
> appliance, bad idea for a server).

CONFIG_HOTPLUG has nothing to do with it.

Yes read in <http://www.ibiblio.org/pub/Linux/docs/howto/other-formats/html_single/SCSI-2.4-HOWTO.html#mlproc>

that in Linux 2.4: "The SCSI subsystem does not support hot-plugging of SCSI
devices ..."


Well I have no experience with hpux and those new 'hotplugable' devices but
at least on Sun it doesn't mean that you can remove device(s) like this without
taking care to power it off by software!!!

hth,
    Joel


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Dave,

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11453

Thanks for the fix, I will try to co last cvs and rebuild gcc and kernel
asap.

Joel


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> sorry, I can't reproduce it here with current CVS version....

Ah! I will so retry with last 2.5.74-pa1

Thanks,
    Joel



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>>
>>> Builds/links/boots using my c3000 .config.
>
>Same here. Not dying under load either :)
>
>c.

hmm i tested successfully NS87... builtin but failed as module:
modprob do a page fault and lsmod shows me a module 'busy' and so the system

ailled to reboot (only power off button works but fs were so not cleanly
umount :( )

Cheers,
    Joel




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On Wed, Jul 09, 2003 at 10:29:08AM +0200, Joel Soete wrote:
> Yes read in <http://www.ibiblio.org/pub/Linux/docs/howto/other-formats/html_single/SCSI-2.4-HOWTO.html#mlproc>
> 
> that in Linux 2.4: "The SCSI subsystem does not support hot-plugging of SCSI
> devices ..."

True, it's pretty damn racy.  But if you're careful, it can work.
Let's hope we manage to make it better in 2.6 ... there's a pair of BOFs
in two weeks time at OLS (Hotplug & Linux SCSI) that should address this.

> Well I have no experience with hpux and those new 'hotplugable' devices but
> at least on Sun it doesn't mean that you can remove device(s) like this without
> taking care to power it off by software!!!

Well, no, you're always going to have to quiesce the device.  Otherwise it's
like turning the machine off without halting -- random things are cached and
simply never make it back to disc.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi,

> 
> Odd.  I'm running mdadm 1.2.0 and it says:
> 
>         allegro:~# mdadm --create --help 2>&1 | grep raid-dev
>         Usage:  mdadm --create device -chunk=X --level=Y
> --raid-devices=Z devices
>           --raid-devices= -n : number of active devices in array
> 
> Maybe Neil changed it in a later version?

I downloaded the only  stable version mdadm 0.7.2-2 from ftp.debian.org.   

# mdadm --create --help 2>&1 | grep raid-d
Usage:  mdadm --create device -chunk=X --level=Y --raid-disks=Z devices

I guess it would be nice to mention the difference in the FAQ
 
> Well.  If the disk is no longer part of the metadevice, you manually
> have to add it using the mdadm command.
> 
> It would be quite dangerous if the RAID code decided to add things to
> an array just because a disk is inserted (fine for a storage
> appliance, bad idea for a server).
OK, thank you!


> Yes read in
<http://www.ibiblio.org/pub/Linux/docs/howto/other-formats/html_single/SCSI-2.4-HOWTO.html#mlproc>
> 
> that in Linux 2.4: "The SCSI subsystem does not support hot-plugging
of SCSI
> devices ..."

I just made another test. I pull out 2 mirrored disk (root and var). The system
was running well. However, it seems that md software did not notice absense of
disk until someone tries to write there (I was forced to create a file in /boot
partition so that md understands the failure).

Then I rebooted the system without two disks. PDC told 'warn 80F5' ( Looks Error
executing Entry Init). I do not know why PDC did not try secondary device
automatically, in spite of BOOT ALT worked OK. Looks like PDC was very unhappy
about primary disk and didn't try to try secondary path.

Then Linux didn't find two disks, and reassigned new device names (sda,sdb,...)
according to existing scsi ids. Happily, md software does not care about
symbolic device names and remaps /dev/md  for new disk names according to  hw paths.

Then I inserted the disks and rebooted the system so that the disks appear as
they should. Mirror were resynced manually without problems.

So, I'm not very happy about Linux hot-plug features.

BR,
Dub


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> I just made another test. I pull out 2 mirrored disk (root and var). The

> system was running well. However, it seems that md software did not notice
> absense of disk until someone tries to write there (I was forced to create
> a file in /boot partition so that md understands the failure).
> 
> Then I rebooted the system without two disks. PDC told 'warn 80F5' ( Looks
> Error executing Entry Init). I do not know why PDC did not try secondary
> device automatically,
> in spite of BOOT ALT worked OK. Looks like PDC was
> very unhappy about primary disk and didn't try to try secondary path.

do you well set autosearch on ?
Have a look at boot prompt: co bootinfo?

hth,
    Joel


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> Well, no, you're always going to have to quiesce the device.  Otherwise
it's
> like turning the machine off without halting -- random things are cached
and
> simply never make it back to disc.

Ah yes, (my bad, i thought but not write) I would have to specify that I
spok about hotplugable I/O device in general (FC, NIC,... with the famous
blue led) and not about disk which we qualify here as 'hotswapable' disk.

Thanks,
    Joel


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On Wed, Jul 09, 2003 at 01:27:00PM +0100, Matthew Wilcox wrote:
> Well, no, you're always going to have to quiesce the device.

Not unless the disk is part of RAID[135] set.
I expect to be able to yank a disk and replace with a new one any time.

grant


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Hi,

Looks like I have small HP-PB LAN AUI card detected at boot time in my K210. 

9. Miura LAN/Console (J2146A) (2) at 0xf190c000 [10/4/12], versions 0x4, 0x0,
0x52

I see this device working in many models but it's marked like 'undocumented'. 

Do I need the driver? Sorry, I have no idea how to configure it. I would also
appreciate if you point me to a document about configuring new HW in Debian.

Many thanks for tour help!

BR,
Dub


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On Wed, Jul 09, 2003 at 09:54:51AM -0600, Grant Grundler wrote:
> On Wed, Jul 09, 2003 at 01:27:00PM +0100, Matthew Wilcox wrote:
> > Well, no, you're always going to have to quiesce the device.
> 
> Not unless the disk is part of RAID[135] set.
> I expect to be able to yank a disk and replace with a new one any time.

Indeed.  You are coming to those two BOFs, right?  ;-)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Wed, Jul 09, 2003 at 06:57:44PM +0300, Mihails Nikitins wrote:
> Looks like I have small HP-PB LAN AUI card detected at boot time in my K210. 
> 
> 9. Miura LAN/Console (J2146A) (2) at 0xf190c000 [10/4/12], versions 0x4, 0x0,
> 0x52
> 
> I see this device working in many models but it's marked like 'undocumented'. 
> 
> Do I need the driver? Sorry, I have no idea how to configure it. I would also
> appreciate if you point me to a document about configuring new HW in Debian.

There is no documentation available for this device, so there is no
driver for it.  This means Linux cannot use this device.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Wed, Jul 09, 2003 at 04:58:44PM +0100, Matthew Wilcox wrote:
> Indeed.  You are coming to those two BOFs, right?  ;-)

heh - of course :^)

grant


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Subject: [parisc-linux] Spelling mistake in unaligned.c
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This is a multi-part message in MIME format.
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Hi there!
I found a spelling mistake when I compiled the kernel 2.4.21-pa2 on a 
C360. Here is a patch. Can someone, who has writeaccess to CVS,  apply 
it and put it into CVS?
Thanks!
Rdiger
   

--------------000508040007080302070206
Content-Type: text/plain;
 name="patch.diff"
Content-Transfer-Encoding: 7bit
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 filename="patch.diff"

Index: arch/parisc/kernel/unaligned.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/unaligned.c,v
retrieving revision 1.16
diff -u -p -r1.16 unaligned.c
--- arch/parisc/kernel/unaligned.c	9 Jul 2003 05:15:20 -0000	1.16
+++ arch/parisc/kernel/unaligned.c	9 Jul 2003 13:48:22 -0000
@@ -576,7 +576,7 @@ void handle_unaligned(struct pt_regs *re
 	{
 	case OPCODE_FLDD_L:
 		flop=1;
-		ret = emualate_ldd(regs,R2(regs->iir),1);
+		ret = emulate_ldd(regs,R2(regs->iir),1);
 		break;
 	case OPCODE_FSTD_L:
 		flop=1;

--------------000508040007080302070206--



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From: Grant Grundler <grundler@parisc-linux.org>
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On Wed, Jul 09, 2003 at 06:10:24PM +0200, R?diger Scholz wrote:
> Hi there!
> I found a spelling mistake when I compiled the kernel 2.4.21-pa2 on a 
> C360. Here is a patch. Can someone, who has writeaccess to CVS,  apply 
> it and put it into CVS?

thanks!
willy applied to 2.5 and I've applied it to 2.4.

grant


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] ntop vs. linux-hppa kernel
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pa,

Is anyone runing ntop on hppa? I've got a c3k on unstable running
2.4.21-pa2 and ntop (lastest in unstable) causes a protection id trap 27
which seems to sends the kernel into a loop, but atleast not an 
outright crash.

The box's network and console are gone, but it's showing heartbeat and I
can shutdown via the software button.

I'll take down the full oops when I get all the users off the box (and
recreate the pb.).

c.



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Subject: [parisc-linux] C3000 SCSI config, was Re: linux grundler
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On Wed, 9 Jul 2003, Joel Soete wrote:

> >>> Builds/links/boots using my c3000 .config.
> >
> >Same here. Not dying under load either :)
> >
> >c.
>
> hmm i tested successfully NS87... builtin but failed as module:
> modprob do a page fault and lsmod shows me a module 'busy' and so the system
>
> ailled to reboot (only power off button works but fs were so not cleanly
> umount :( )

A little bit offtopic, but since you are speaking of C3000 and SCSI:


I replaced my buggy C240 with a C3000 (and got into more debts ;-/) and
it's working fine so far (fresh CVS co of 2.4.21-pa2).

Even Wireless network card (Netgear MA311, Prism chipset, full PCI, not
PCI-PCMCIA or PLX) works using the hostap driver (and in hostap mode)!!!

However don't try to use the kernel driver (orinoco/hermes), it seems
unstable, at least when the reception is not good or when transferring
huge files (kernel emits lots of warnings and makes it unresponsive)


My problem:

I was (only) using a external SE SCSI drive on my C240, so it was easy to
get the C3000 running: simply attach the SCSI box to it, and then copy
all the files onto the internal FW LVD SCSI drives of the C3000.

Well, the C3000 is very stable when just using the external SE SCSI, but
when trying to access the internal FW SCSI, it often aborts SCSI commands
and frequently resets (at least) the FW SCSI BUS, at least when trying to
copy large directories from SE SCSI to FW SCSI.

The machine has 1GB RAM, 2x 9GB LVD FW Seagate 9GB disks, no IDE cdrom,
no graphics.

I'm using the SYM2 driver (using default options), but I tried a
2.4.20-pa35 kernel with SYM1 and I had the same problems. I don't have my
config here, but I'm sure I've compiled the kernel with "Zalon" support,
since it's not clear to me, after reading the help, whether I need it or
not.

Can somebody give me his .config for a C3000 and can tell which driver to
use (SYM1 or SYM2)? Are there some kernel arguments neccessary for the
C3000?


Thanks, Max



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Subject: Re: [parisc-linux] C3000 SCSI config, was Re: linux grundler
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On Wed, Jul 09, 2003 at 07:17:37PM +0100, M. Grabert wrote:
> Well, the C3000 is very stable when just using the external SE SCSI, but
> when trying to access the internal FW SCSI, it often aborts SCSI commands
> and frequently resets (at least) the FW SCSI BUS, at least when trying to
> copy large directories from SE SCSI to FW SCSI.
> 
> The machine has 1GB RAM, 2x 9GB LVD FW Seagate 9GB disks, no IDE cdrom,
> no graphics.

Hm, you don't say whether you have terminators on your SCSI busses.

> I'm using the SYM2 driver (using default options), but I tried a
> 2.4.20-pa35 kernel with SYM1 and I had the same problems. I don't have my
> config here, but I'm sure I've compiled the kernel with "Zalon" support,
> since it's not clear to me, after reading the help, whether I need it or
> not.

Oh dear ;-( Here's the helptext for Zalon:

config SCSI_ZALON
        tristate "Zalon SCSI support"
        depends on GSC && SCSI
        help
          The Zalon is a GSC/HSC bus interface chip that sits between the
          PA-RISC processor and the NCR 53c720 SCSI controller on C100,
          C110, J200, J210 and some D, K & R-class machines.  It's also
          used on the add-in Bluefish, Barracuda & Shrike SCSI cards.
          Say Y here if you have one of these machines or cards.

I don't really see how I can make this more clear.  Can you tell me which
bit is confusing you?

> Can somebody give me his .config for a C3000 and can tell which driver to
> use (SYM1 or SYM2)? Are there some kernel arguments neccessary for the
> C3000?

Use SYM2 -- SYM1 is going away in 2.5, so if SYM2 doesn't work for you,
it needs to be fixed.  We used to need command line arguments on C3k
(and similar) boxes, but we don't any more.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Mihails Nikitins <nikitins@latnet.lv>
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Subject: [parisc-linux] Re: How to enable LCD screen on K-class?
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> Woody Debian on my K-class does not show info on status LCD screen after linux
> is started. How to configure this feature? LCD is working before OS is loaded,
> then everything is black.

Anyway, is it possible to get it working? I see that something is overwriting
LCD diagnostic info while loading Linux.

My Kernel is compiled with 
CONFIG_CHASSIS_LCD_LED=y

Sure you know it. :-)

BR,
Mihails


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From: dub <dub@latnet.lv>
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Subject: Re: [parisc-linux] Corrections for RAID1 howto and Resyncing after failure
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> 
> do you well set autosearch on ?
> Have a look at boot prompt: co bootinfo?
> 
> hth,
>     Joel

Hi,

You are right, autosearch was off. However, setting is on does not help, even
after powering off the system.

BR,
Dub



Configuration Menu: Enter command > bi

BOOT INFORMATION

   Processor         Boot ID
   ---------         -------
       0                  2  
       1                  2  

   Autoboot:             ON
   Autosearch:           ON
   Fastboot:             OFF

   Primary boot path:    10/0.1   (dec)
                         0a/0.1   (hex)
   Alternate boot path:  10/8.1   (dec)
                         0a/08.1   (hex)
   Console path:         10/4/0.0   (dec)
                         0a/04/0.0   (hex)
   Keyboard path:        10/12/7.0   (dec)
                         0a/0c/07.0   (hex)

   LAN Station Address:  080009-da4488

   Thu Jul  10 08:53:10 GMT 2003    (20:03:07:10:08:53:10)




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From: "M. Grabert" <xam@cs.ucc.ie>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C3000 SCSI config, was Re: linux grundler
Date: Thu, 10 Jul 2003 11:18:34 +0100 (IST)
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Cc: Joel Soete <jsoe0708@tiscali.be>,
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To: Matthew Wilcox <willy@debian.org>
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On Wed, 9 Jul 2003, Matthew Wilcox wrote:

> Subject: Re: [parisc-linux] C3000 SCSI config, was Re: linux grundler
>
> On Wed, Jul 09, 2003 at 07:17:37PM +0100, M. Grabert wrote:
> > Well, the C3000 is very stable when just using the external SE SCSI, but
> > when trying to access the internal FW SCSI, it often aborts SCSI commands
> > and frequently resets (at least) the FW SCSI BUS, at least when trying to
> > copy large directories from SE SCSI to FW SCSI.
> >
> > The machine has 1GB RAM, 2x 9GB LVD FW Seagate 9GB disks, no IDE cdrom,
> > no graphics.
>
> Hm, you don't say whether you have terminators on your SCSI busses.

Yes, a (external) FW SCSI terminator and a (external) SE SCSI terminator
at the (external) SE SCSI box.

> > I'm using the SYM2 driver (using default options), but I tried a
> > 2.4.20-pa35 kernel with SYM1 and I had the same problems. I don't have my
> > config here, but I'm sure I've compiled the kernel with "Zalon" support,
> > since it's not clear to me, after reading the help, whether I need it or
> > not.
>
> Oh dear ;-( Here's the helptext for Zalon:
>
> config SCSI_ZALON
>         tristate "Zalon SCSI support"
>         depends on GSC && SCSI
>         help
>           The Zalon is a GSC/HSC bus interface chip that sits between the
>           PA-RISC processor and the NCR 53c720 SCSI controller on C100,
>           C110, J200, J210 and some D, K & R-class machines.  It's also
>           used on the add-in Bluefish, Barracuda & Shrike SCSI cards.
>           Say Y here if you have one of these machines or cards.
>
> I don't really see how I can make this more clear.  Can you tell me which
> bit is confusing you?

I'm using the the 2.4 -kernel, and it says:

"The Zalon is an interface chip that sits between the PA-RISC
processor and the NCR 53c720 SCSI controller on K-series PA-RISC
boards (these are used, among other places, on some HP 780
workstations).  Say Y here to make sure it gets initialized
correctly before the Linux kernel tries to talk to the controller."

Well, since the C240/C3000 are 780-series machines, I wasn't so sure ...

> > Can somebody give me his .config for a C3000 and can tell which driver to
> > use (SYM1 or SYM2)? Are there some kernel arguments neccessary for the
> > C3000?
>
> Use SYM2 -- SYM1 is going away in 2.5, so if SYM2 doesn't work for you,
> it needs to be fixed.  We used to need command line arguments on C3k
> (and similar) boxes, but we don't any more.

Thanks, Max



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] C3000 SCSI config, was Re: linux grundler
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Cc: Matthew Wilcox <willy@debian.org>,
	Joel Soete <jsoe0708@tiscali.be>,
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	parisc-linux@lists.parisc-linux.org
To: "M. Grabert" <xam@cs.ucc.ie>
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On Thu, Jul 10, 2003 at 11:18:34AM +0100, M. Grabert wrote:
> > config SCSI_ZALON
> >         tristate "Zalon SCSI support"
> >         depends on GSC && SCSI
> >         help
> >           The Zalon is a GSC/HSC bus interface chip that sits between the
> >           PA-RISC processor and the NCR 53c720 SCSI controller on C100,
> >           C110, J200, J210 and some D, K & R-class machines.  It's also
> >           used on the add-in Bluefish, Barracuda & Shrike SCSI cards.
> >           Say Y here if you have one of these machines or cards.
> 
> I'm using the the 2.4 -kernel, and it says:
> 
> "The Zalon is an interface chip that sits between the PA-RISC
> processor and the NCR 53c720 SCSI controller on K-series PA-RISC
> boards (these are used, among other places, on some HP 780
> workstations).  Say Y here to make sure it gets initialized
> correctly before the Linux kernel tries to talk to the controller."
> 
> Well, since the C240/C3000 are 780-series machines, I wasn't so sure ...

OK, I'll just copy the 2.5 helptext into 2.4 then.  It wouldn't have
confused you, right?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] C3000 SCSI config, was Re: linux grundler
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On Thu, 10 Jul 2003, Matthew Wilcox wrote:

> > I'm using the the 2.4 -kernel, and it says:
> >
> > "The Zalon is an interface chip that sits between the PA-RISC
> > processor and the NCR 53c720 SCSI controller on K-series PA-RISC
> > boards (these are used, among other places, on some HP 780
> > workstations).  Say Y here to make sure it gets initialized
> > correctly before the Linux kernel tries to talk to the controller."
> >
> > Well, since the C240/C3000 are 780-series machines, I wasn't so sure ...
>
> OK, I'll just copy the 2.5 helptext into 2.4 then.  It wouldn't have
> confused you, right?

True ;)

Thanks, Max







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Hi,

> You are right, autosearch was off. However, setting is on does not help,
even
> after powering off the system.
> 
> BR,
> Dub
> 
> 
> 
> Configuration Menu: Enter command > bi
> 
> BOOT INFORMATION
> 
>    Processor         Boot ID
>    ---------         -------
>        0                  2  
>        1                  2  
> 
>    Autoboot:             ON
>    Autosearch:           ON
>    Fastboot:             OFF
> 
>    Primary boot path:    10/0.1   (dec)
>                          0a/0.1   (hex)
>    Alternate boot path:  10/8.1   (dec)
>                          0a/08.1   (hex)

iirc if you launch 'boot alt' and ask to boot 'without interact with ipl'
it boots fine? If yes, i don't see why it doen't work (sorry).
(may be try to switch boot disks to be sure that the behaviour will not follow
the disk?)

Joel


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On Thu, Jul 10, 2003 at 11:43:07AM +0300, Mihails Nikitins wrote:
> > Woody Debian on my K-class does not show info on status LCD screen after linux
> > is started. How to configure this feature? LCD is working before OS is loaded,
> > then everything is black.
> 
> Anyway, is it possible to get it working?


Maybe. Depends on which gfx card you have driving the LCD.
Of the few people that do have K-class, I doubt many have a gfx port.

grant


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On Thu, Jul 10, 2003 at 11:18:34AM +0100, M. Grabert wrote:
> Yes, a (external) FW SCSI terminator and a (external) SE SCSI terminator
> at the (external) SE SCSI box.

"FW SCSI" == "FW Diff SCSI" ?

C3000 doesn't have FW Diff SCSI built-in.
Only 50-pin SE SCSI and 68-pin LVD/SE SCSI.
Remove the FW Diff terminator and run w/o a terminator rather than
the wrong one.

> I'm using the the 2.4 -kernel, and it says:
> 
> "The Zalon is an interface chip that sits between the PA-RISC
> processor and the NCR 53c720 SCSI controller on K-series PA-RISC
> boards (these are used, among other places, on some HP 780
> workstations).  Say Y here to make sure it gets initialized
> correctly before the Linux kernel tries to talk to the controller."
> 
> Well, since the C240/C3000 are 780-series machines, I wasn't so sure ...

C3000 is 9000/785 ...but the 2.5 help text is much clearer.

grant


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On Thu, 10 Jul 2003, Grant Grundler wrote:

> Subject: Re: [parisc-linux] C3000 SCSI config, was Re: linux grundler
>
> On Thu, Jul 10, 2003 at 11:18:34AM +0100, M. Grabert wrote:
> > Yes, a (external) FW SCSI terminator and a (external) SE SCSI terminator
> > at the (external) SE SCSI box.
>
> "FW SCSI" == "FW Diff SCSI" ?

FastWide SCSI. Fast-SCSI 40.
The PDC console reports the external box as (SE) SCSI, the other as FW SCSI.
That's the reason I call/report it this way.

> C3000 doesn't have FW Diff SCSI built-in.
> Only 50-pin SE SCSI and 68-pin LVD/SE SCSI.

As I said, there are 2 LVD SCSI drives installed internally.

> Remove the FW Diff terminator and run w/o a terminator rather than
> the wrong one.

I got the machine with 2 terminators, a SE SCSI and (obviously) a LVD SCSI.
I don't think it's a differential terminator.

> > I'm using the the 2.4 -kernel, and it says:
> >
> > "The Zalon is an interface chip that sits between the PA-RISC
> > processor and the NCR 53c720 SCSI controller on K-series PA-RISC
> > boards (these are used, among other places, on some HP 780
> > workstations).  Say Y here to make sure it gets initialized
> > correctly before the Linux kernel tries to talk to the controller."
> >
> > Well, since the C240/C3000 are 780-series machines, I wasn't so sure ...
>
> C3000 is 9000/785 ...but the 2.5 help text is much clearer.

Thanks, Max



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On Thursday 10 July 2003 10:43, Mihails Nikitins wrote:
> > Woody Debian on my K-class does not show info on status LCD screen after
> > linux is started. How to configure this feature? LCD is working before OS
> > is loaded, then everything is black.
>
> Anyway, is it possible to get it working? I see that something is
> overwriting LCD diagnostic info while loading Linux.

Please send an output of /proc/cpuinfo. The Hardware-ID of your
system might be interesting to figure out, why it doesn't work.

Helge


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On Thursday 10 July 2003 18:06, Grant Grundler wrote:
> On Thu, Jul 10, 2003 at 11:43:07AM +0300, Mihails Nikitins wrote:
> > > Woody Debian on my K-class does not show info on status LCD screen
> > > after linux is started. How to configure this feature? LCD is working
> > > before OS is loaded, then everything is black.
> >
> > Anyway, is it possible to get it working?
>
> Maybe. Depends on which gfx card you have driving the LCD.
> Of the few people that do have K-class, I doubt many have a gfx port.

I think Mihails talks about the small panel LCD display on the front of the chassis, 
which e.g. shows "Linux Version 2.5.xx" after boot. 
Or do I misunderstand something here ?

Helge


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On Thu, Jul 10, 2003 at 09:23:40PM +0200, Helge Deller wrote:
> I think Mihails talks about the small panel LCD display on the
> front of the chassis, 

doh! yes, I think you are right.

grant


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On Thu, Jul 10, 2003 at 05:29:49PM +0100, M. Grabert wrote:
> I got the machine with 2 terminators, a SE SCSI and (obviously) a LVD SCSI.
> I don't think it's a differential terminator.

Ok. Given the older 2.4.20 kernel with sym1 driver sees the
same issues, it stinks like a HW problem. And termination
was the most obvious starting point.

Try take the LVD drives out of the C3000 and re-seat them firmly.
It's also possible one of the LVD drives is dying.

And having zalon support enabled shouldn't be a problem.
It just won't get used on the C3000 since no zalon chips are present.

grant


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From: Mihails Nikitins <nikitins@latnet.lv>
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Subject: Re: [parisc-linux] Re: How to enable LCD screen on K-class?
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> On Thu, Jul 10, 2003 at 09:23:40PM +0200, Helge Deller wrote:
> > I think Mihails talks about the small panel LCD display on the
> > front of the chassis, 
> 
> doh! yes, I think you are right.
> 
> grant
> 

Yes, I tried to explain it as 'status LCD screen'. You're right, it's better to
call it LCD panel. :-) I ask people having D, K, J classes if LCD panels should
work.

I see that panel normal  is being overwritten with black rectangles while
loading Linux. I hope my question is clear now.

BR,
Mihails

P.S. I don't know if you still want to see this.



# cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 1.1c
cpu             : PA7200 (PCX-T')
cpu MHz         : 120.000000
model           : 9000/839/K210
model name      : KittyHawk DC3-120 (K210)
hversion        : 0x00005810
sversion        : 0x00000491
I-cache         : 256 KB
D-cache         : 258 KB (WB)
ITLB entries    : 120
DTLB entries    : 120 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (16 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 119.60
software id     : 1200801362

processor       : 1
cpu family      : PA-RISC 1.1c
cpu             : PA7200 (PCX-T')
cpu MHz         : 120.000000
model           : 9000/839/K210
model name      : KittyHawk DC3-120 (K210)
hversion        : 0x00005810
sversion        : 0x00000491
I-cache         : 256 KB
D-cache         : 258 KB (WB)
ITLB entries    : 120
DTLB entries    : 120 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (16 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 119.60
software id     : 1200801362



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Hi Grant,

>Joel,
>I haven't verified I got everything committed that you
>needed. Please let me know (via p-l mailing list) what
>else is outstanding.

For me it is Ok: i run this on b2k in 32bits mode (+ NS driver built in),
on a N4000 (UP because of mm pb: here I don't know what to do). I successfully
stress all them a bit by rebuilding kernel (still have to check some userspace
check) :)

Thanks a lot for help,
    Joel

PS1: btw, the previous parisc stuff transmitted to Alan are finaly included
in 2.4.22-pre4, I will so try to prepare asap a small update :)

PS2: Also for future 2.4.22, in binfmt_som.c '#error "Fix security hole before
enabling me"' (line 216). Do you have any idea to fix it?

------------------------------------------------------
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Hi Max,

>Ok. Given the older 2.4.20 kernel with sym1 driver sees the
>same issues, it stinks like a HW problem. And termination
>was the most obvious starting point.

Don't you retry 2.4.19 with sym1?

>Try take the LVD drives out of the C3000 and re-seat them firmly.
>It's also possible one of the LVD drives is dying.

Don't you have a HP cd containing ODE (Off-line Diagnostics Environment)
(in general available on Support Plus CD) this would allow you to test your
disks.

hth,
    Joel


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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On Gwe, 2003-07-11 at 09:26, Joel Soete wrote:
> PS2: Also for future 2.4.22, in binfmt_som.c '#error "Fix security hole before
> enabling me"' (line 216). Do you have any idea to fix it?

Look at the changes in binfmt_elf and copy them. Basically its about 
stopping someone doing

	clone with file sharing
	one thread		other thread
	exec			swap file handles around
	loads wrong binary suid




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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] [2.5] ns87415 irq
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Would this patch make sense for 2.5?  I have to confess not testing it
on any hardware, but it seems to be the Right Thing (and I'm sure Alan
remembers the mess we had in the 2.4 parisc tree for this ...)

--- linus-2.5/drivers/ide/pci/ns87415.c	Thu Jul 10 16:18:07 2003
+++ parisc-2.5/drivers/ide/pci/ns87415.c	Fri Jul 11 08:03:17 2003
@@ -200,7 +200,7 @@
 	}
 
 	if (!using_inta)
-		hwif->irq = hwif->channel ? 15 : 14;	/* legacy mode */
+		hwif->irq = ide_default_irq(hwif->io_ports[IDE_DATA_OFFSET]);
 	else if (!hwif->irq && hwif->mate && hwif->mate->irq)
 		hwif->irq = hwif->mate->irq;	/* share IRQ with mate */
 

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [2.5] ns87415 irq
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On Fri, 11 Jul 2003, Matthew Wilcox wrote:

> Would this patch make sense for 2.5?  I have to confess not testing it
> on any hardware, but it seems to be the Right Thing (and I'm sure Alan
> remembers the mess we had in the 2.4 parisc tree for this ...)

Question is on what other archs ns87415 is used because some archs
do not have ide_default_irq() ie. sparc64.

from drivers/ide/Kconfig:
config BLK_DEV_NS87415
        tristate "NS87415 chipset support"
        depends on BLK_DEV_IDEDMA_PCI
        help
          This driver adds detection and support for the NS87415 chip
          (used in SPARC64, among others).

I think sparc64 uses PCI interrupt so this is not a problem.
Are there any other archs using ns87415?
--
Bartlomiej

> --- linus-2.5/drivers/ide/pci/ns87415.c	Thu Jul 10 16:18:07 2003
> +++ parisc-2.5/drivers/ide/pci/ns87415.c	Fri Jul 11 08:03:17 2003
> @@ -200,7 +200,7 @@
>  	}
>
>  	if (!using_inta)
> -		hwif->irq = hwif->channel ? 15 : 14;	/* legacy mode */
> +		hwif->irq = ide_default_irq(hwif->io_ports[IDE_DATA_OFFSET]);
>  	else if (!hwif->irq && hwif->mate && hwif->mate->irq)
>  		hwif->irq = hwif->mate->irq;	/* share IRQ with mate */



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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [2.5] ns87415 irq
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On Fri, Jul 11, 2003 at 04:26:21PM +0200, Bartlomiej Zolnierkiewicz wrote:
> Question is on what other archs ns87415 is used because some archs
> do not have ide_default_irq() ie. sparc64.
> 
> from drivers/ide/Kconfig:
> config BLK_DEV_NS87415
>         tristate "NS87415 chipset support"
>         depends on BLK_DEV_IDEDMA_PCI
>         help
>           This driver adds detection and support for the NS87415 chip
>           (used in SPARC64, among others).
> 
> I think sparc64 uses PCI interrupt so this is not a problem.
> Are there any other archs using ns87415?

I really don't know.  I don't think it's unreasonable to expect
architectures to add ide_default_irq().  The existing code in the driver
can't work for anything other than x86, so either everyone has a local
hack to it (like parisc does) or nobody else uses it.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] [2.5] ns87415 irq
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On Gwe, 2003-07-11 at 15:07, Matthew Wilcox wrote:
> Would this patch make sense for 2.5?  I have to confess not testing it
> on any hardware, but it seems to be the Right Thing (and I'm sure Alan
> remembers the mess we had in the 2.4 parisc tree for this ...)

Yes, it makes sense to do this generally. However can you also pass
hwif to the ide_default_irq function because that lets the arch code
work out what pci bus the device is nailed to




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] [2.5] ns87415 irq
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On Fri, Jul 11, 2003 at 04:02:50PM +0100, Alan Cox wrote:
> On Gwe, 2003-07-11 at 15:07, Matthew Wilcox wrote:
> > Would this patch make sense for 2.5?  I have to confess not testing it
> > on any hardware, but it seems to be the Right Thing (and I'm sure Alan
> > remembers the mess we had in the 2.4 parisc tree for this ...)
> 
> Yes, it makes sense to do this generally. However can you also pass
> hwif to the ide_default_irq function because that lets the arch code
> work out what pci bus the device is nailed to

Erm, that seems like more work than I should be doing.  That would touch
36 files, including a lot of mips/ppc ide files.  Or did you want Bart
to make that change?

BTW, Bart, seems like sparc64 does _have_ the ide_default_irq() function,
it just returns 0.  So I think this patch shouldn't break anything.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, Jul 11, 2003 at 04:26:21PM +0200, Bartlomiej Zolnierkiewicz wrote:
> Are there any other archs using ns87415?

Well, the original ns87415 is a PCI device.
I'd guess any arch could have interest in it.

The parisc specifc code is for "SuckyIO" (aka Nat Sem "87560")
which has ns87415 embedded as one of it's functions.
AFAIK, HP was the only customer to use NS's SuckyIO chip.

grant


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On Fri, 11 Jul 2003, Matthew Wilcox wrote:

> On Fri, Jul 11, 2003 at 04:02:50PM +0100, Alan Cox wrote:
> > On Gwe, 2003-07-11 at 15:07, Matthew Wilcox wrote:
> > > Would this patch make sense for 2.5?  I have to confess not testing it
> > > on any hardware, but it seems to be the Right Thing (and I'm sure Alan
> > > remembers the mess we had in the 2.4 parisc tree for this ...)
> >
> > Yes, it makes sense to do this generally. However can you also pass
> > hwif to the ide_default_irq function because that lets the arch code
> > work out what pci bus the device is nailed to
>
> Erm, that seems like more work than I should be doing.  That would touch
> 36 files, including a lot of mips/ppc ide files.  Or did you want Bart
> to make that change?

Alan, are there any benefits of doing this?

> BTW, Bart, seems like sparc64 does _have_ the ide_default_irq() function,
> it just returns 0.  So I think this patch shouldn't break anything.

Yes, but 0 != 14 && 0 != 15. I am just paranoid. :-)

> --
> "It's not Hollywood.  War is real, war is primarily not about defeat or
> victory, it is about death.  I've seen thousands and thousands of dead bodies.
> Do you think I want to have an academic debate on this subject?" -- Robert Fisk





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On Fri, Jul 11, 2003 at 05:32:12PM +0200, Bartlomiej Zolnierkiewicz wrote:
> > BTW, Bart, seems like sparc64 does _have_ the ide_default_irq() function,
> > it just returns 0.  So I think this patch shouldn't break anything.
> 
> Yes, but 0 != 14 && 0 != 15. I am just paranoid. :-)

Oh, 14 and 15 are not valid sparc64 irqs.  No problem.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Dear Sirs,

Since 2.4.20-pa35 my 712-60/128Mb suffers from the "tag starvation problem":

kernel msg: target(6.0) suffers from tag starvation problem

then everything seems ok for a few seconds and then a sudden kernel panic.
Note that until pa35 everything went ok (excluding the 712 power switch that
does not work).
I routinely use parisc-linux precompiled kernels.
The problem also appears in 2.4.21pa2.

any help anyone ?
thanks in advance.


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On Fri, 11 Jul 2003, Matthew Wilcox wrote:

> On Fri, Jul 11, 2003 at 05:32:12PM +0200, Bartlomiej Zolnierkiewicz wrote:
> > > BTW, Bart, seems like sparc64 does _have_ the ide_default_irq() function,
> > > it just returns 0.  So I think this patch shouldn't break anything.
> >
> > Yes, but 0 != 14 && 0 != 15. I am just paranoid. :-)
>
> Oh, 14 and 15 are not valid sparc64 irqs.  No problem.

Okay, patch accepted.

BTW Can we make irq detecion in init_hwif_ns87415() a bit simpler
    by using native PCI irq detection present in setup-pci.c?
    Hmmm...  I need to grab ns87415 datasheet...

> --
> "It's not Hollywood.  War is real, war is primarily not about defeat or
> victory, it is about death.  I've seen thousands and thousands of dead bodies.
> Do you think I want to have an academic debate on this subject?" -- Robert Fisk



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On Fri, Jul 11, 2003 at 05:41:18PM +0200, alchemist@cdc712-9.cdc.polimi.it wrote:
> Dear Sirs,
> 
> Since 2.4.20-pa35 my 712-60/128Mb suffers from the "tag starvation problem":
> 
> kernel msg: target(6.0) suffers from tag starvation problem

Problem explanation is here:
http://lists.debian.org/debian-hppa/2002/debian-hppa-200201/msg00067.html

and here:
http://licensing.steeleye.com/support/papers/ols_2002_slides.pdf

> then everything seems ok for a few seconds and then a sudden kernel panic.
> Note that until pa35 everything went ok (excluding the 712 power switch that
> does not work).

I've been seeing problems with recent 2.4.x kernels in the SCSI error
recovery path on ia64-linux as well. I haven't tried to track down
those problems yet.

grant

> I routinely use parisc-linux precompiled kernels.
> The problem also appears in 2.4.21pa2.
> 
> any help anyone ?
> thanks in advance.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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To: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
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On Gwe, 2003-07-11 at 16:32, Bartlomiej Zolnierkiewicz wrote:
> > Erm, that seems like more work than I should be doing.  That would touch
> > 36 files, including a lot of mips/ppc ide files.  Or did you want Bart
> > to make that change?
> 
> Alan, are there any benefits of doing this?

The normal process is just to break the non x86 ports 8)

> > BTW, Bart, seems like sparc64 does _have_ the ide_default_irq() function,
> > it just returns 0.  So I think this patch shouldn't break anything.
> 
> Yes, but 0 != 14 && 0 != 15. I am just paranoid. :-)

One of the things it cleans up is the 14/15 IRQ assumption.



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Subject: Re: [parisc-linux] Re: How to enable LCD screen on K-class?
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Hi Mihails,

please take a look at the code in drivers/parisc/led.c.
There you'll find a few "workarounds" for Kittyhawk machines and
some explanation, why it maybe doesn't work.

=46rom one of the comments:
 ** KittyHawk machines have often a buggy PDC, so that
 ** we explicitly check for those machines here.

Maybe you try to change some coding there, else I'll try and continue=20
to figure out next week....

Helge


On Friday 11 July 2003 08:52, Mihails Nikitins wrote:
> > On Thu, Jul 10, 2003 at 09:23:40PM +0200, Helge Deller wrote:
> > > I think Mihails talks about the small panel LCD display on the
> > > front of the chassis,
> >
> > doh! yes, I think you are right.
> >
> > grant
>
> Yes, I tried to explain it as 'status LCD screen'. You're right, it's
> better to call it LCD panel. :-) I ask people having D, K, J classes if L=
CD
> panels should work.
>
> I see that panel normal  is being overwritten with black rectangles while
> loading Linux. I hope my question is clear now.
>
> BR,
> Mihails
>
> P.S. I don't know if you still want to see this.
>
>
>
> # cat /proc/cpuinfo
> processor       : 0
> cpu family      : PA-RISC 1.1c
> cpu             : PA7200 (PCX-T')
> cpu MHz         : 120.000000
> model           : 9000/839/K210
> model name      : KittyHawk DC3-120 (K210)
> hversion        : 0x00005810
> sversion        : 0x00000491
> I-cache         : 256 KB
> D-cache         : 258 KB (WB)
> ITLB entries    : 120
> DTLB entries    : 120 - shared with ITLB
> BTLB fixed      : max. 16384 pages, pagesize=3D4096 (64MB)
> BTLB fix-entr.  : 0 instruction, 0 data (16 combined)
> BTLB var-entr.  : 0 instruction, 0 data (0 combined)
> bogomips        : 119.60
> software id     : 1200801362
>
> processor       : 1
> cpu family      : PA-RISC 1.1c
> cpu             : PA7200 (PCX-T')
> cpu MHz         : 120.000000
> model           : 9000/839/K210
> model name      : KittyHawk DC3-120 (K210)
> hversion        : 0x00005810
> sversion        : 0x00000491
> I-cache         : 256 KB
> D-cache         : 258 KB (WB)
> ITLB entries    : 120
> DTLB entries    : 120 - shared with ITLB
> BTLB fixed      : max. 16384 pages, pagesize=3D4096 (64MB)
> BTLB fix-entr.  : 0 instruction, 0 data (16 combined)
> BTLB var-entr.  : 0 instruction, 0 data (0 combined)
> bogomips        : 119.60
> software id     : 1200801362
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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Hello-
I am trying to install the latest net install ISO's.

My system is labeled Apollo Series 700 but the info command gives the following
Machine model 9000/730
Hardware version 8224
Software Version 1153

On bootup I see it has
PDC rom 2.0
IODC rom 2.0
176M ram

The SCSI controller is labeled SCSI Single ended.

Looking at the machine I can see it contains a  A1659-66001 video (frame buffer).  I am assuming this is not stock as the documentation on HP's web site states nothing about it.

My machine locks up (no heartbeat) when creating superblocks for formatting the hard drives.  I have tries this on many different drives and receive the same results.

I have read the FAQ and googled the archives to death.  If anyone can point me the right direction, It would be a great help.  I have 5 of these machines.

-Matt




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Subject: [parisc-linux] - Are you learning ESL or TESL?
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Hi all,
Another errata regarding the net install.

Since we've been advocating net installs and I like to eat my
own brand of dogfood,  I started with an A500 and the
lifimage-2.4.20-pa35-20030513 on another server which was
configured for both DHCP and apache. I could have avoided
all this by just cloning an existing A500 root disk...

kernel/modules that get installed by default are 2.4.17-64.
Makes sense since this is a woody install.  But the install
kernel in this case is "2.4.20-64".  The "Configure Device Driver
Modules" step never finds any modules because the Install
kernel doesn't care about /target/lib/modules/2.4.17-64.

My first attempt to remedy the problem was a failure:
# wget http://http.us.debian.org/debian/pool/main/k/kernel-patch-2.4.20-hppa/kernel-image-2.4.20-64_pa32.1_hppa.deb
# dpkg -i --instdir=/target kernel-image-2.4.20-64_pa32.1_hppa.deb
dpkg: not found

The solution is to find a compatible /lib/modules directory.
It doesn't have to be exactly matching, just need to be
able to run depmod and pretend you might (but won't)
load a driver module.

Easier to just build one for the a500 :^/
I found a 2.4.20 kernel build lying around.
And made it available on my local web server:
# make modules_install INSTALL_MOD_DIR=/tmp
# cd /tmp/lib/modules
# tar czf /var/www/hppa/modules-2.4.20-64.tgz 2.4.20-64/

Then on the target box:
# cd /target
# wget http://192.168.0.61/hppa/modules-2.4.20-64.tgz
# cd /target/lib/modules
# tar xzf ../../modules-2.4.20-64.tgz
# rm -rf 2.4.20-64/build
# chown -R root 2.4.20-64
# chgrp -R root 2.4.20-64

The first system I installed, "Configure Device Driver Modules"
continued to loop around on trying to install modules.
It asks if I would like to install a module but doesn't identify
which one. ^C to get out of that and on to "Installing the Base System".
But I also had pulled over the ISO and loopback mounted that.
That might have confused the installer somehow.

The second system I did this procedure on got through "Configure Device
Driver Modules" with no problems.

But don't reboot yet. The 2.4.17 woody kernel HPMC'd one a500
and hung in the scsi probe on the other. Not so useful.
Replace the /target/boot/vmlinux and System.map with working
2.4.20 or .21 kernels. Then rerun palo command and reboot.

grant


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Subject: [parisc-linux] Sound in 2.5
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Hi there!

Had anyone success compiling a kernel with sound support enabled? If  I 
enable the ALSA harmony driver, I get a lot of errors during compile:

---------------SNIP-------------

      LD      sound/isa/wavefront/built-in.o
      LD      sound/isa/built-in.o
      CC      sound/parisc/harmony.o
    sound/parisc/harmony.c:80:21: asm/gsc.h: Datei oder Verzeichnis
    nicht gefunden
    sound/parisc/harmony.c: In function `snd_card_harmony_playback_open':
    sound/parisc/harmony.c:712: structure has no member named `dma_private'
    sound/parisc/harmony.c:713: structure has no member named `dma_type'
    sound/parisc/harmony.c:713: `SNDRV_PCM_DMA_TYPE_PCI' undeclared
    (first use in this function)
    sound/parisc/harmony.c:713: (Each undeclared identifier is reported
    only once
    sound/parisc/harmony.c:713: for each function it appears in.)
    sound/parisc/harmony.c: In function `snd_card_harmony_capture_open':
    sound/parisc/harmony.c:736: structure has no member named `dma_private'
    sound/parisc/harmony.c:737: structure has no member named `dma_type'
    sound/parisc/harmony.c:737: `SNDRV_PCM_DMA_TYPE_PCI' undeclared
    (first use in this function)
    sound/parisc/harmony.c: In function `snd_card_harmony_hw_params':
    sound/parisc/harmony.c:784: warning: unused variable `runtime'
    sound/parisc/harmony.c: In function `snd_card_harmony_pcm_init':
    sound/parisc/harmony.c:827: warning: implicit declaration of
    function `request_irq'
    sound/parisc/harmony.c: In function `snd_card_harmony_create':
    sound/parisc/harmony.c:1004: dereferencing pointer to incomplete type
    sound/parisc/harmony.c:1007: dereferencing pointer to incomplete type
    sound/parisc/harmony.c:1022: dereferencing pointer to incomplete type
    sound/parisc/harmony.c:1033: warning: implicit declaration of
    function `ccio_get_fake'
    sound/parisc/harmony.c:1033: warning: assignment makes pointer from
    integer without a cast
    sound/parisc/harmony.c: In function `snd_card_harmony_probe':
    sound/parisc/harmony.c:1079: dereferencing pointer to incomplete type
    sound/parisc/harmony.c: At top level:
    sound/parisc/harmony.c:1109: variable `snd_card_harmony_driver' has
    initializer but incomplete type
    sound/parisc/harmony.c:1110: unknown field `name' specified in
    initializer
    sound/parisc/harmony.c:1110: warning: excess elements in struct
    initializer
    sound/parisc/harmony.c:1110: warning: (near initialization for
    `snd_card_harmony_driver')
    sound/parisc/harmony.c:1111: unknown field `id_table' specified in
    initializer
    sound/parisc/harmony.c:1111: warning: excess elements in struct
    initializer
    sound/parisc/harmony.c:1111: warning: (near initialization for
    `snd_card_harmony_driver')
    sound/parisc/harmony.c:1112: unknown field `probe' specified in
    initializer
    sound/parisc/harmony.c:1112: warning: excess elements in struct
    initializer
    sound/parisc/harmony.c:1112: warning: (near initialization for
    `snd_card_harmony_driver')
    sound/parisc/harmony.c: In function `alsa_card_harmony_exit':
    sound/parisc/harmony.c:1139: warning: implicit declaration of
    function `free_irq'
    sound/parisc/harmony.c: At top level:
    sound/parisc/harmony.c:1109: storage size of
    `snd_card_harmony_driver' isn't known
    include/sound/initval.h:140: warning: `get_id' defined but not used
    make[2]: *** [sound/parisc/harmony.o] Fehler 1
    make[1]: *** [sound/parisc] Fehler 2
    make: *** [sound] Fehler 2
    ruediger@gandalf:/usr/src/linux-2.5$

---------------SNAP-------------

The compiler didn't find the file "asm/gsc.h" (first error message: 
"Datei oder Verzeichnis nicht gefunden"). But if I put there the right 
path to gsc.h it won't compile either.
Any hints to make some noise with a 2.5-kernel?
   
    Rdiger




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Subject: [parisc-linux] Chassis LCD on D200 supported?
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Hello,

I am just wondering if the chassis lcd is supported on 9000/801/D200.

I compiled  2.4.21-pa2 with CONFIG_CHASSIS_LCD_LED=y but still I only 
get the /proc/pdc/led node.
did I get that right, that there should a lcd node showing up when an 
lcd is detected?

the start-up log only states

LED display at f010c000 registered

this is my first hp9000, so I appreciate any hints


/jan.



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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: Re: [parisc-linux] Sound in 2.5
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On Sat, 12 Jul 2003 09:21:54 +0200
R=FCdiger Scholz <rscholz@hrzpub.tu-darmstadt.de> wrote:

> Hi there!
>=20
> Had anyone success compiling a kernel with sound support enabled? If  I=20
> enable the ALSA harmony driver, I get a lot of errors during compile:
>=20
> ---------------SNIP-------------
>=20
>       LD      sound/isa/wavefront/built-in.o
>       LD      sound/isa/built-in.o
>       CC      sound/parisc/harmony.o
>     sound/parisc/harmony.c:80:21: asm/gsc.h: Datei oder Verzeichnis
>     nicht gefunden
>=20
> ---------------SNAP-------------
>=20
> The compiler didn't find the file "asm/gsc.h" (first error message:=20
> "Datei oder Verzeichnis nicht gefunden"). But if I put there the right=20
> path to gsc.h it won't compile either.
> Any hints to make some noise with a 2.5-kernel?
>   =20

I guess that a part of the answer stands there:

http://cvs.parisc-linux.org/linux-2.5/include/asm-parisc/Attic/gsc.h
Revision 1.5 , Fri Nov 1 01:04:30 2002 UTC (8 months, 1 week ago) by willy
Move gsc_read,write[bwl] to asm/io.h.  Move drivers/parisc/busdevice.h
to drivers/parisc/gsc.h.  Move the rest of include/asm-parisc/gsc.h
to drivers/parisc/gsc.h.  Edit dozens of files to remove the include
of <asm/gsc.h>

I tried to reproduce, correcting the path to gsc.h, and here's what
happened:

  CC      sound/parisc/harmony.o
sound/parisc/harmony.c: In function `snd_card_harmony_playback_open':
sound/parisc/harmony.c:712: structure has no member named `dma_private'
sound/parisc/harmony.c:713: structure has no member named `dma_type'
sound/parisc/harmony.c:713: `SNDRV_PCM_DMA_TYPE_PCI' undeclared (first use
in this function)
sound/parisc/harmony.c:713: (Each undeclared identifier
is reported only once sound/parisc/harmony.c:713: for each function it
appears in.)
sound/parisc/harmony.c: In function `snd_card_harmony_capture_open':
sound/parisc/harmony.c:736: structure has no member named `dma_private'
sound/parisc/harmony.c:737: structure has no member named `dma_type'
sound/parisc/harmony.c:737:`SNDRV_PCM_DMA_TYPE_PCI' undeclared (first use
in this function)
sound/parisc/harmony.c: In function `snd_card_harmony_hw_params':
sound/parisc/harmony.c:784: warning: unused variable `runtime'
sound/parisc/harmony.c: In function`snd_card_harmony_pcm_init':
sound/parisc/harmony.c:827: warning: passing arg 2 of `request_irq' from
incompatible pointer type
sound/parisc/harmony.c: In function`snd_card_harmony_create':
sound/parisc/harmony.c:1033: warning: implicit declaration of
function`ccio_get_fake'
sound/parisc/harmony.c:1033: warning: assignment makes pointer from
integer without a cast
sound/parisc/harmony.c: At top level:
include/sound/initval.h:140: warning: `get_id' defined but not used
make[2]:***[sound/parisc/harmony.o] Error 1

Since I've not closely followed the last change made to 2.5, I cannot tell
right now what's wrong. Maybe willy can give us some hints there? ;)
Laurent Canet, which is the author of this driver, is currently on
vacation (as I'm supposed to be, btw ;P) so don't expect any help from him
before a little while.

I'll have a closer look and try to find out what's wrong.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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On Sat, Jul 12, 2003 at 02:34:18PM +0200, Thibaut VARENE wrote:
> I guess that a part of the answer stands there:
> 
> http://cvs.parisc-linux.org/linux-2.5/include/asm-parisc/Attic/gsc.h
> Revision 1.5 , Fri Nov 1 01:04:30 2002 UTC (8 months, 1 week ago) by willy
> Move gsc_read,write[bwl] to asm/io.h.  Move drivers/parisc/busdevice.h
> to drivers/parisc/gsc.h.  Move the rest of include/asm-parisc/gsc.h
> to drivers/parisc/gsc.h.  Edit dozens of files to remove the include
> of <asm/gsc.h>

Yeah.  But where did sound/parisc/harmony.c come from?  The first thing
I saw of it was when it was added to Linux 2.5.71.  I assumed one of
you guys had been working on it.

>   CC      sound/parisc/harmony.o
> sound/parisc/harmony.c: In function `snd_card_harmony_playback_open':
> sound/parisc/harmony.c:712: structure has no member named `dma_private'
> sound/parisc/harmony.c:713: structure has no member named `dma_type'
> sound/parisc/harmony.c:713: `SNDRV_PCM_DMA_TYPE_PCI' undeclared (first use
> in this function)

static int snd_card_harmony_playback_open(snd_pcm_substream_t * substream)
        substream->dma_private = harmony->fake_pci_dev;
        substream->dma_type = SNDRV_PCM_DMA_TYPE_PCI;

I dunno, this all looks like sound junk to me.

I have no idea what glue the person who wrote this driver is on:

 * (note that some machines -712 for ex.- don't implement DMA consistent
 * memory, so we will need to use kmalloc instead)

712 implements DMA consistent memory.  715/33 doesn't, for example.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


From - Thu Nov 08 21:28:23 2018
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From: Jan Sporbeck <jan_lists@sporbeck-family.de>
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Subject: [parisc-linux] eisa configuration howto?
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Xref: news.gmane.org gmane.linux.ports.parisc:18907

Hello,
Iam trying to get an additional esia scsi controller to work on my 
9000/801/d200.

But i am stuck with the eisa configuration.
Where do I register eisa cards?
-Ive only done that on intel before, there was an userspace programm..


while booting, I get:

EISA slot 1: HWP0C80 EISA IRQ 3 memory fc0d8000-fc0e0000
EISA slot 2 id mis-match: got ADP7771 expected ___FFFF

the controler is in slot 2.

Is there any linux/ parisc eisa howto?

what am I missing?


thanks,
jan.



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From: Martin Andrews <mandrews@no-more-accent.com>
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Subject: [parisc-linux] Are YOU learning English...?
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This is a multi-part message in MIME format
--bb3f19c0-c1ff-4116-aab7-213253fcdf73
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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] [PATCH] fix arbitrary limits on stack size
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One of the problems with the PA linux implementation is the upward
growing stack.  On most architectures, the virtual process space is
divided into


| unmapped | exec and heap |  mappings and stack |
                   TASK_UNMAPPED_BASE        TASK_SIZE


The mappings grow up from the start and the stack grows down from the
end of the area. If they ever meet, the process segfaults.

On palinux, we have an upward growing stack, so we have to size the
stack so when it reaches its ulimit, it hits the top of the area.  This
means that large stack limits cut into the mappable area (and also that
we have to impose a hard limit of 1GB on the stack size otherwise the
user could remove the ability to map processes entirely by setting the
stack limit too high).

The proposal to fix this is to start the stack growing upwards from
TASK_UNMAPPED_BASE and have the mappings grow downwards from TASK_SIZE. 
This should allow us to behave in exactly the same manner as x86 and not
have an arbitrary limit on the stack size.

The attached patch (against 2.5.70-pa1) does this, if you'd like to
comment on it or try it out.

James



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=3D=3D=3D=3D=3D arch/parisc/kernel/sys_parisc.c 1.8 vs edited =3D=3D=3D=3D=
=3D
--- 1.8/arch/parisc/kernel/sys_parisc.c	Mon Mar 17 19:15:27 2003
+++ edited/arch/parisc/kernel/sys_parisc.c	Sat Jul 12 10:51:09 2003
@@ -26,22 +26,59 @@
 	return error;
 }
=20
+/* Routine to find unshared mappings.  If we cannot satisfy the
+ * address and length exactly, we start at the top of memory and check
+ * down.  Since the vm_area_struct is designed for a forward search,
+ * not a backward one, we cache the address of the lowest assigned
+ * mapping in current->mm->free_area_cache.
+ */
 static unsigned long get_unshared_area(unsigned long addr, unsigned long l=
en)
 {
 	struct vm_area_struct *vma;
+	struct vm_area_struct *prev_vma;
=20
-	if (!addr)
-		addr =3D TASK_UNMAPPED_BASE;
-	addr =3D PAGE_ALIGN(addr);
+	if (len > TASK_FREE_AREA_CACHE)
+		return -ENOMEM;
=20
-	for (vma =3D find_vma(current->mm, addr); ; vma =3D vma->vm_next) {
-		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (TASK_SIZE - len < addr)
-			return -ENOMEM;
-		if (!vma || addr + len <=3D vma->vm_start)
+	/* quick check to see if we can satisfy the fixed address */
+	if (addr && (addr &=3D PAGE_MASK), TASK_SIZE - len <=3D addr) {
+		vma =3D find_vma_prev(current->mm, addr, &prev_vma);
+		if ((!vma || addr + len <=3D vma->vm_start)
+		    && (!prev_vma || addr >=3D prev_vma->vm_end)) {
+			printk("FIXED AREA MAP AT %lx-%lx\n",
+			       addr, addr+len);
 			return addr;
-		addr =3D vma->vm_end;
+		}
+	}
+
+	/* start from the lowest cached address */
+	addr =3D (current->mm->free_area_cache - len) & PAGE_MASK;
+=09
+	for(;;) {
+		if (addr < TASK_UNMAPPED_BASE)
+			goto err;
+
+		vma =3D find_vma_prev(current->mm, addr, &prev_vma);
+		=09
+
+		/* At this point:  (!vma || addr < vma->vm_end). */
+		if ((!vma || addr + len <=3D vma->vm_start)
+		    && (!prev_vma || addr >=3D prev_vma->vm_end))
+				goto found;
+
+		/* OK, go backwards one mapping and try again */
+		if(vma)
+			addr =3D (vma->vm_start - len) & PAGE_MASK;
+		else
+			addr =3D (prev_vma->vm_start - len) & PAGE_MASK;
+
 	}
+ found:
+	current->mm->free_area_cache =3D addr;
+	return addr;
+ err:
+	printk("RETURNING -ENOMEM\n");
+	return -ENOMEM;
 }
=20
 #define DCACHE_ALIGN(addr) (((addr) + (SHMLBA - 1)) &~ (SHMLBA - 1))
@@ -49,26 +86,50 @@
 static unsigned long get_shared_area(struct inode *inode, unsigned long ad=
dr,
 		unsigned long len, unsigned long pgoff)
 {
-	struct vm_area_struct *vma, *first_vma;
+	struct vm_area_struct *vma, *first_vma, *prev_vma;
 	int offset;
=20
 	first_vma =3D list_entry(inode->i_mapping->i_mmap_shared.next, struct vm_=
area_struct, shared);
 	offset =3D (first_vma->vm_start + ((pgoff - first_vma->vm_pgoff) << PAGE_=
SHIFT)) & (SHMLBA - 1);
=20
-	if (!addr)
-		addr =3D TASK_UNMAPPED_BASE;
+	if (addr && (addr =3D DCACHE_ALIGN(addr - offset) + offset),
+	    TASK_SIZE - len <=3D addr) {
+		vma =3D find_vma_prev(current->mm, addr, &prev_vma);
+		if ((!vma || addr + len <=3D vma->vm_start)
+		    && (!prev_vma || addr >=3D prev_vma->vm_end)) {
+			printk("SHARED FIXED AREA MAP AT %lx-%lx\n",
+			       addr, addr+len);
+			return addr;
+		}
+	}
+
+	addr =3D (current->mm->free_area_cache - len) & PAGE_MASK;
 	addr =3D DCACHE_ALIGN(addr - offset) + offset;
=20
-	for (vma =3D find_vma(current->mm, addr); ; vma =3D vma->vm_next) {
+	for(;;) {
+		if (addr < TASK_UNMAPPED_BASE)
+			goto err;
+
+		vma =3D find_vma_prev(current->mm, addr, &prev_vma);
+
 		/* At this point:  (!vma || addr < vma->vm_end). */
-		if (TASK_SIZE - len < addr)
-			return -ENOMEM;
-		if (!vma || addr + len <=3D vma->vm_start)
-			return addr;
-		addr =3D DCACHE_ALIGN(vma->vm_end - offset) + offset;
-		if (addr < vma->vm_end) /* handle wraparound */
-			return -ENOMEM;
+		if ((!vma || addr + len <=3D vma->vm_start)
+		    && (!prev_vma || addr >=3D prev_vma->vm_end))
+			goto found;
+
+		if(vma)
+			addr =3D (vma->vm_start - len) & PAGE_MASK;
+		else
+			addr =3D (prev_vma->vm_start - len) & PAGE_MASK;
+
+		addr =3D DCACHE_ALIGN(addr - offset) + offset;
 	}
+ found:
+	printk("SHARED RETURNING ADDR %lx\n", addr);
+	return addr;
+ err:
+	printk("SHARED RETURNING -ENOMEM\n");
+	return -ENOMEM;
 }
=20
 unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr=
,
=3D=3D=3D=3D=3D fs/binfmt_aout.c 1.16 vs edited =3D=3D=3D=3D=3D
--- 1.16/fs/binfmt_aout.c	Sat Feb 15 21:30:17 2003
+++ edited/fs/binfmt_aout.c	Fri Jul 11 18:17:28 2003
@@ -308,7 +308,7 @@
 		(current->mm->start_data =3D N_DATADDR(ex));
 	current->mm->brk =3D ex.a_bss +
 		(current->mm->start_brk =3D N_BSSADDR(ex));
-	current->mm->free_area_cache =3D TASK_UNMAPPED_BASE;
+	current->mm->free_area_cache =3D TASK_FREE_AREA_CACHE;
=20
 	current->mm->rss =3D 0;
 	current->mm->mmap =3D NULL;
=3D=3D=3D=3D=3D fs/binfmt_elf.c 1.49 vs edited =3D=3D=3D=3D=3D
--- 1.49/fs/binfmt_elf.c	Wed Jul  2 11:08:30 2003
+++ edited/fs/binfmt_elf.c	Fri Jul 11 18:17:15 2003
@@ -635,7 +635,7 @@
 	/* Do this so that we can load the interpreter, if need be.  We will
 	   change some of these later */
 	current->mm->rss =3D 0;
-	current->mm->free_area_cache =3D TASK_UNMAPPED_BASE;
+	current->mm->free_area_cache =3D TASK_FREE_AREA_CACHE;
 	retval =3D setup_arg_pages(bprm);
 	if (retval < 0) {
 		send_sig(SIGKILL, current, 0);
=3D=3D=3D=3D=3D fs/exec.c 1.92 vs edited =3D=3D=3D=3D=3D
--- 1.92/fs/exec.c	Thu Jul 10 10:56:33 2003
+++ edited/fs/exec.c	Fri Jul 11 20:30:50 2003
@@ -375,11 +375,8 @@
 	/* Adjust bprm->p to point to the end of the strings. */
 	bprm->p =3D PAGE_SIZE * i - offset;
=20
-	/* Limit stack size to 1GB */
-	stack_base =3D current->rlim[RLIMIT_STACK].rlim_max;
-	if (stack_base > (1 << 30))
-		stack_base =3D 1 << 30;
-	stack_base =3D PAGE_ALIGN(STACK_TOP - stack_base);
+
+	stack_base =3D PAGE_ALIGN(TASK_UNMAPPED_BASE);
=20
 	mm->arg_start =3D stack_base;
 	arg_size =3D i << PAGE_SHIFT;
=3D=3D=3D=3D=3D include/asm-parisc/processor.h 1.11 vs edited =3D=3D=3D=3D=
=3D
--- 1.11/include/asm-parisc/processor.h	Mon Jun 23 10:25:25 2003
+++ edited/include/asm-parisc/processor.h	Sat Jul 12 11:00:45 2003
@@ -41,6 +41,13 @@
 #define TASK_UNMAPPED_BASE      (current->thread.map_base)
 #define DEFAULT_MAP_BASE        (0x40000000UL)
=20
+/* This defines the start of the cached area for the downward growing
+ * maps.  NOTE: The elf interpreter seems to insist on having a fixed
+ * mapping address just above the text for its data and other
+ * allocations, so space must be left for that between this and the
+ * end of usable memory (TASK_SIZE) */
+#define TASK_FREE_AREA_CACHE	(TASK_SIZE-0x800000)
+
 #ifndef __ASSEMBLY__
=20
 /*
=3D=3D=3D=3D=3D include/linux/mm.h 1.124 vs edited =3D=3D=3D=3D=3D
--- 1.124/include/linux/mm.h	Sun Jul  6 15:23:51 2003
+++ edited/include/linux/mm.h	Sat Jul 12 11:11:39 2003
@@ -30,6 +30,14 @@
 #define MM_VM_SIZE(mm)	TASK_SIZE
 #endif
=20
+/* This defines the value current->mm->free_area_cache will be set to
+ * for every new process.  If you define your own
+ * arch_get_unmapped_area() you may override this in
+ * asm/processor.h */
+#ifndef TASK_FREE_AREA_CACHE
+#define TASK_FREE_AREA_CACHE	TASK_UNMAPPED_BASE
+#endif
+
 /*
  * Linux kernel virtual memory manager primitives.
  * The idea being to have a "virtual" mm in the same way
=3D=3D=3D=3D=3D kernel/fork.c 1.130 vs edited =3D=3D=3D=3D=3D
--- 1.130/kernel/fork.c	Sat Jul  5 01:52:49 2003
+++ edited/kernel/fork.c	Fri Jul 11 18:16:41 2003
@@ -262,7 +262,7 @@
 	mm->locked_vm =3D 0;
 	mm->mmap =3D NULL;
 	mm->mmap_cache =3D NULL;
-	mm->free_area_cache =3D TASK_UNMAPPED_BASE;
+	mm->free_area_cache =3D TASK_FREE_AREA_CACHE;
 	mm->map_count =3D 0;
 	mm->rss =3D 0;
 	mm->cpu_vm_mask =3D 0;
@@ -376,7 +376,7 @@
 	mm->page_table_lock =3D SPIN_LOCK_UNLOCKED;
 	mm->ioctx_list_lock =3D RW_LOCK_UNLOCKED;
 	mm->default_kioctx =3D (struct kioctx)INIT_KIOCTX(mm->default_kioctx, *mm=
);
-	mm->free_area_cache =3D TASK_UNMAPPED_BASE;
+	mm->free_area_cache =3D TASK_FREE_AREA_CACHE;
=20
 	if (likely(!mm_alloc_pgd(mm))) {
 		mm->def_flags =3D 0;

--=-Rs/BluSNFJbI4v6u+UK/--



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On Sat, Jul 12, 2003 at 05:19:37PM +0200, Jan Sporbeck wrote:
> But i am stuck with the eisa configuration.
> Where do I register eisa cards?

Because of a lack of documentation on the eisacfg tool that knows
how to poke NVRAM, this hasn't been done yet.

> -Ive only done that on intel before, there was an userspace programm..

Yes. Maybe use HPUX + eisacfg to setup the eisa cards?

grant


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..

Grant Grundler wrote:
> On Sat, Jul 12, 2003 at 05:19:37PM +0200, Jan Sporbeck wrote:
>
>>But i am stuck with the eisa configuration.
>>Where do I register eisa cards?
> 
> Because of a lack of documentation on the eisacfg tool that knows
> how to poke NVRAM, this hasn't been done yet.
> 
>>-Ive only done that on intel before, there was an userspace programm..
> 
> Yes. Maybe use HPUX + eisacfg to setup the eisa cards?


did I get this right: I have to use the HPUX eisacfg tool to setup the 
card?!
-there is no linux tool?
thats quite sad, as I donT have any HPUX anymore..


thanks anyway,
/jan.



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Hi all,

I just discover some days ago (when trying to rebuild 4.3) that in XFree-4.2 still exists (not anymore
in 4.3?) the sources of a Xhp server supporting the builtin gfx of my testing b180 (into build-tree/xc/programs/Xserver/hw/hp/).

Juliusz Chroboczek <jch@pps.jussieu.fr <mailto:jch@pps.jussieu.fr>> kindly explain me:
> Please note that Xhp is not supported by XFree86, and most probably
> doesn't build.
> 
> Try adding a file xc/config/cf/host.def with the following line:
>
>  #define XhpServer YES
>
> Then make World as usual.

It doesn't build :-(

But I also found some additional patch which HP supplied for suport of X11R6.3 into mklinux project.
It would be helpful as this patch supplied (among other things) the asm src of an object supplying requested ngleDepth8_CopyAreaFromToScreen() and ngleDepth24_CopyAreaFromToScreen() functions.
Into mklinux sources I also find back <machine/asm.h> it would be easy with the help of kernel documentation to 'reverse' it for parisc linux (seems to be trivial).
My only pb is that src seems to be writen for 'som' env:
>#include <machine/asm.h>
>
>       .space  $TEXT$
>       .subspa $CODE$
>
>       .import ngleScreenPrivIndex,data
>
>       .export ngleDepth8_CopyAreaFromToScreen
>       .proc
>       .callinfo
>
>ngleDepth8_CopyAreaFromToScreen
>       ldo 0x40(sp),sp
>       stw arg0,-0x64(sp)
>       stw arg1,-0x68(sp)
>       stw arg2,-0x6c(sp)
>       stw arg3,-0x70(sp)
>       ldw -0x68(sp),r1
[...]
>       stw t3,0xb00(t4)
>       bv r0(rp)
>       ldo -0x40(sp),sp
>
>       .procend
>
[...]+
>       .end

(arg[0..3], r[0..], t[1..4] beeing labels defined <machine/asm.h>)

Does it exist some doc or tips to do this kind of obj translation 'som' -> 'elf'?

Thanks in advance for advises,
	Joel






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> Into mklinux sources I also find back <machine/asm.h> it would be easy with 
> the help of kernel documentation to 'reverse' it for parisc linux (seems to 
> be trivial).

> Does it exist some doc or tips to do this kind of obj translation 'som' -> 
> 'elf'?

well, not that i know of, but it should work almost as is. most of these
are actually differences between the HP assembler and the GNU assembler,
rather than differences between SOM and ELF.

> >      .space  $TEXT$
> >      .subspa $CODE$

change to ".text"

> >
> >      .import ngleScreenPrivIndex,data
> >
> >      .export ngleDepth8_CopyAreaFromToScreen
> >      .proc
> >      .callinfo
> >
> >ngleDepth8_CopyAreaFromToScreen
add colon (:) at end

> >      ldo 0x40(sp),sp
> >      stw arg0,-0x64(sp)
> >      stw arg1,-0x68(sp)
> >      stw arg2,-0x6c(sp)
> >      stw arg3,-0x70(sp)
> >      ldw -0x68(sp),r1
> [...]
> (arg[0..3], r[0..], t[1..4] beeing labels defined <machine/asm.h>)

shouldn't need the labels, the assembler recognizes these. but you need
to put % in front of all the register names in order for the GNU
assembler to accept the input. (ldo 0x40(%sp),%sp, etc)

HTH,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>well, not that i know of, but it should work almost as is. most of these
>are actually differences between the HP assembler and the GNU assembler,
>rather than differences between SOM and ELF.
>
>> >      .space  $TEXT$
>> >      .subsp
>> $CODE$
>
>change to ".text"
>
That was my main question, nice :)

>> >
>> >ngleDepth8_CopyAreaFromToScreen
>add colon (:) at end
Ok

> >      ldo 0x40(sp),sp
^^^^^^^^^^^^^^^^^^^^^^^^^^That was I suspected to be 'som' specific

> >      stw arg0,-0x64(sp)
> >      stw arg1,-0x68(sp)
> >      stw arg2,-0x6c(sp)
> >      stw arg3,-0x70(sp)
> >      ldw -0x68(sp),r1
> [...]
> (arg[0..3], r[0..], t[1..4] beeing labels defined <machine/asm.h>)

>shouldn't need the labels, the assembler recognizes these. but you need
>to put % in front of all the register names in order for the GNU
>assembler to accept the input. (ldo 0x40(%sp),%sp, etc)

HTH,

A lot you just answers to all my questions,

Thanks a lot,
    Joel



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> > >      ldo 0x40(sp),sp
> ^^^^^^^^^^^^^^^^^^^^^^^^^^That was I suspected to be 'som' specific

that means a 64-byte stack.. should be fine on palinux as well.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>> > >      ldo 0x40(sp),sp
> ^^^^^^^^^^^^^^^^^^^^^^^^^^That was I suspected to be 'som' specific
>
>that means a 64-byte stack.. should be fine on palinux as well.

Ok I will so try like this (after % and other stuff translation) :-)

Thanks again,
    Joel

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Hello,
I have two HP 9000 machines D220 and D250 with PA-Risc technology . i want 
to configure linux
os on it to run it as web server .
How do i go about it ?

Any help would be highly appreciated .

Regards
Atul




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On Mon, Jul 14, 2003 at 11:53:20AM +0530, Atul kirane wrote:
> Hello,
> I have two HP 9000 machines D220 and D250 with PA-Risc technology . i want 
> to configure linux os on it to run it as web server .
> How do i go about it ?

Start with:
	http://www.parisc-linux.org/

Read the FAQ.
Read the "PA-RISC/Linux Boot HOWTO".

Search the mailing list for "D220"
(http://www.parisc-linux.org/mailing-lists/index.html)

And one gets:

   http://lists.parisc-linux.org/pipermail/parisc-linux/2003-June/020129.html

hth,
grant


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Hi Willy,

>>>Is it possible to backport it to 2.4?
>
>>Already did it as 2.4.21-pa3 -- can you test that?
>
> ooh I do not see this change (sorry), I will so test this patch (just 
> have to ask you to wait Monday because here at home I have not yet 
> recover a parisc box :)

As said I come back to you with a successfull test (well by the way pa4)
as buitin device driver NS87415 :)

But as module same erronious behaviour _as previous_:

(I make the p-l and grant in cc because here i grab much detail info)

palx2000:~# modprobe ns87415
Segmentation fault

palx2000:~# lsmod 
Module                  Size  Used by    Not tainted
ns87415                 2424   1  (initializing)

palx2000 login: NS87415: IDE controller at PCI slot 00:0e.0
NS87415: chipset revision 3
NS87415: not 100% native mode: will probe irqs later
modprobe (pid 332): Illegal instruction (code 8)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 10360000 101f50f4 100ddc00
r04-07  00000000 00028820 103cb870 100ddc00
r08-11  00000000 00000000 00000000 00000000
r12-15  103cc010 00004d38 1d4d3000 00042da8
r16-19  00042da8 00042da8 0004c7f0 00000002
r20-23  00000155 fed30000 fed30000 00000002
r24-27  00000004 00007000 103cb870 102fa010
r28-31  00000000 40000000 1f6dc840 00000000
sr0-3   00000000 0000034c 00000000 0000034c
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10360660 10360664
 IIR: 00002ba7    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 1f6dc000 CR31: 10398000
 ORIG_R28: 103aa59c

I do not really understand why modeprobe do an 'Illegal instruction' (pb
with modeprob or with the actual contents of ns87415.o?

(gcc -v => 3.3.1 20030626 (debian prerelease) and binutils 2.14.90.0.4-0.1)

hth,
    Joel

PS: Is it so important to track this driver as module (if only this platform
need this driver replacing tristate by bool wouldn't be enough?)


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>One of the problems with the PA linux implementation is the upward
>growing stack.  On most architectures, the virtual process space is
>divided into
>
>
>| unmapped | exec and heap |  mappings and stack | TASK_UNMAPPED_BASE  
     
>TASK_SIZE
>
>
>The mappings grow up from the start and the stack grows down from the
>end of the area. If they ever meet, the process segfaults.
>
>On palinux, we have an upward growing stack, so we have to size the
>stack so when it reaches its ulimit, it hits the top of the area.  This
>means that large stack limits cut into the mappable area (and also that
>we have to impose a hard limit of 1GB on the stack size otherwise the
>user could remove the ability to map processes entirely by setting the
>stack limit too high).
>
>The proposal to fix this is to start the stack growing upwards from
>TASK_UNMAPPED_BASE and have the mappings grow downwards from TASK_SIZE.

>This should allow us to behave in exactly the same manner as x86 and not
>have an arbitrary limit on the stack size.
>
>The attached patch (against 2.5.70-pa1) does this, if you'd like to
>comment on it or try it out.

I don' t remember the historical reason of this choice but do you think it
is possible to back-port it into 2.4 (it will facilitate so much the merge
with upstream?)

Thanks in advance for advise,
    Joel

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On Mon, Jul 14, 2003 at 12:48:56PM +0200, Joel Soete wrote:
> I don' t remember the historical reason of this choice but do you think it
> is possible to back-port it into 2.4 (it will facilitate so much the merge
> with upstream?)

2.6.0-test1 is out.  IMO, all work on 2.4 should cease.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Xref: news.gmane.org gmane.linux.ports.parisc:18922

I've merged 2.6.0-test1 into our CVS.  I think the additional hyphen in 
2.6.0-test1-pa0 may break some scripts.

This would be a great time to start reporting problems and fixing bugs

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] real2.S in linux-2.5
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Xref: news.gmane.org gmane.linux.ports.parisc:18923

Hi,

can someone please delete the whitespaces from line 126 in real2.S from 
linux-2.5, else gcc-3.3 will throw an error . J.David Anglin explained 
in 
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-June/020137.html 
why.

TIA,
    Rdiger



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Subject: Re: [parisc-linux] real2.S in linux-2.5
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Xref: news.gmane.org gmane.linux.ports.parisc:18924

On Mon, Jul 14, 2003 at 05:08:19PM +0200, Rdiger Scholz wrote:
> Hi,
> 
> can someone please delete the whitespaces from line 126 in real2.S from 
> linux-2.5, else gcc-3.3 will throw an error . J.David Anglin explained 

Done.

 restore_control_regs:
-       load32  PA(save_cr_space + (N_SAVED_REGS * REG_SZ)), %r26
+       load32  PA(save_cr_space+(N_SAVED_REGS*REG_SZ)), %r26
        POP_CR(%cr15, %r26)

I'm a little annoyed this fix wasn't committed to 2.5 already.  I wonder
what other bits went into the 2.4 tree without going into 2.5 first?

BTW, it's not for gcc-3.3's benefit, but for binutils' benefit.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] PC type PCI video on HP9000 C240
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Hello,
What kind of PC PCI video card can I put on a "HP 9000 C240" under Linux =
to have X ?
Thanks
Red
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<DIV><FONT face=3DArial size=3D2>Hello,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>What kind of PC PCI video card can I =
put on a "HP=20
9000 C240" under Linux to have X ?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Thanks</FONT></DIV>
<DIV><FONT face=3DArial =
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Subject: [parisc-linux] 2.4.21-paX on an rp2430
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pa,

Downloaded vmlinux-64-2.4.21-pa2 from cvs.parisc-linux.org

palo --commandline='0/vmlinux64 console=/dev/ttyS0 root=/dev/sda2' \
     -k ./vmlinux-64-2.4.21-pa2 \
     -s ./lifimage64

Then proceeded to netboot this kernel from a new rp2430, and I didn't 
get very far :(

Has anyone tried testing the prebuilt kernels on newer machines?

I also tried a newer vmlinux-2.4.20-pa10-UP and the kernel oopses :(

---
Main Menu: Enter command or menu > bo lan
Interact with IPL (Y, N, or Cancel)?> y

Booting... 
Network Station Address 00306e-48a712
System IP Address 192.168.1.200
Server IP Address 192.168.1.222

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl 1.2 root@b2000 Tue Jan 14 13:13:07 MST 2003

Boot image contains:
    0/vmlinux64 5196863 bytes @ 0x8800
Current command line:
0/vmlinux64 console=/dev/ttyS0 root=/dev/sda2
 0: 0/vmlinux64
 1: console=/dev/ttyS0
 2: root=/dev/sda2

Edit which field?
(or 'b' to boot with this command line)? b

Command line for kernel: 'console=/dev/ttyS0 root=/dev/sda2 palo_kernel=0/vmlinux64'
Selected kernel: /vmlinux64 from partition 0
ELF64 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 2789296 mediaptr 0x1000
Segment 1 load 003aa000 size 1012928 mediaptr 0x2aa000
Segment 2 load 004a4000 size 319568 mediaptr 0x3a2000
Segment 3 load 004f4000 size 49152 mediaptr 0x3f1000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org


********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00
processor                 system initialization      1C00


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Le lundi, 14 jul 2003, =E0 20:23 Europe/Paris, Carlos O'Donell a =E9crit =
:

>
> ********** VIRTUAL FRONT PANEL **********
> System Boot detected
> *****************************************
> LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
>        ON       FLASH         OFF       ON         ON
> LED State: There was a system interruption that did not take the=20
> system down.
> Check Chassis and Console Logs for error messages.
>
> processor                 system initialization      1C00
> processor                 system initialization      1C00

these two messages show that the kernel went up to calling INIT
(the second "system initialization" is sent just before INIT is called).

You can check the real logs by issuing the CL command in your GSP.
You'll find there the console log, without the VFP messages.

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=




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> >
> >processor                 system initialization      1C00
> >processor                 system initialization      1C00
> 
> these two messages show that the kernel went up to calling INIT
> (the second "system initialization" is sent just before INIT is called).
> 
> You can check the real logs by issuing the CL command in your GSP.
> You'll find there the console log, without the VFP messages.

What does this mean from the viewpoint of the boot process? Did the
kernel actually boot or just got stuck here?

c.



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Subject: [parisc-linux] oops with 2.4.20-pa10-UP on rp2430
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pa,

In an attempte to get a new rp2430 booting I tried the latest online
kernels without much success.

ftp://ftp.parisc-linux.org/kernels/a500

Booted 2.4.20-UP
Using teh dump-analyzer, but objdump on x86 complains a little about the
architecture... objdump: Can't disassemble for architecture UNKNOWN!,
which I'm assuming means I should probably be using a cross or
multi-arch binutils to do this?
---

IAOQ = 000000001011675c
Func: iosapic_set_irt_data, Off: c, Addr: 0x1011675c

GR0 = 0000000000000000

GR1 = 00000000103d2530
Func: __gp, Off: 1800, Addr: 0x103d2530

GR2 = 00000000101168ac
Func: iosapic_enable_irq, Off: 3c, Addr: 0x101168ac

GR3 = 00000000103d0d30
Func: __gp, Off: 0, Addr: 0x103d0d30

GR4 = 0000000010054db8

GR5 = 00000000103d0d30
Func: __gp, Off: 0, Addr: 0x103d0d30

GR6 = 00000000103c8690
Func: __stop___ksymtab, Off: 14840, Addr: 0x103c8690

GR7 = 00000000102ede58
Func: twist_table___0, Off: 4d0, Addr: 0x102ede58

GR8 = 0000000010452228
Func: IRQ_ports, Off: 428, Addr: 0x10452228

GR9 = 0000000004000000

GR10 = 00000000000243c8

GR11 = 00000000faf00012

GR12 = 000000000000ffff

GR13 = 0000000000013000

GR14 = 0000000000013000

GR15 = 0000000000013000

GR16 = 0000000000005000

GR17 = 0000000000013000

GR18 = 00000000000243c8

GR19 = 0000000000000000

GR20 = 00000000103d7530
Func: __gp, Off: 6800, Addr: 0x103d7530

GR21 = 0000000000000000

GR22 = 0000000010079200

GR23 = 00000000102ede58
Func: twist_table___0, Off: 4d0, Addr: 0x102ede58

GR24 = 0000000017a0d00c

GR25 = 0000000017a0d008

GR26 = 0000000010054db8

GR27 = 00000000103d0d30
Func: __gp, Off: 0, Addr: 0x103d0d30

GR28 = 0000000000000060

GR29 = 0000000017a0d070

GR30 = 0000000017a0d080

GR31 = 0000000000000000

Kernel symbols on the stack:
[<0000000010153e44>]: Func: __alloc_pages, Off: 84, Addr: 0x10153e44
[<000000001010d714>]: Func: enable_irq, Off: 5c, Addr: 0x1010d714
[<000000001010e1e8>]: Func: request_irq, Off: 138, Addr: 0x1010e1e8
[<0000000010154118>]: Func: get_zeroed_page, Off: 58, Addr: 0x10154118
[<00000000101d6b40>]: Func: startup, Off: 580, Addr: 0x101d6b40
[<00000000101d84a4>]: Func: set_serial_info, Off: 404, Addr: 0x101d84a4
[<00000000101d8f84>]: Func: rs_ioctl, Off: 39c, Addr: 0x101d8f84
[<00000000101447d0>]: Func: handle_mm_fault, Off: 148, Addr: 0x101447d0
[<00000000101bdae4>]: Func: tty_ioctl, Off: 2f4, Addr: 0x101bdae4
[<00000000101272a4>]: Func: do_tiocgserial, Off: 44, Addr: 0x101272a4
[<00000000101715f4>]: Func: sys_ioctl, Off: bc, Addr: 0x101715f4
[<0000000010127648>]: Func: sys32_ioctl, Off: 140, Addr: 0x10127648
[<000000001015c150>]: Func: sys_open, Off: c0, Addr: 0x1015c150
[<0000000010171538>]: Func: sys_ioctl, Off: 0, Addr: 0x10171538
[<0000000010108df0>]: Func: syscall_exit, Off: 0, Addr: 0x10108df0
[<000000001010809c>]: Func: intr_restore, Off: 0, Addr: 0x1010809c
[<0000000010108b3c>]: Func: child_return, Off: 0, Addr: 0x10108b3c
[<000000001015bcbc>]: Func: dentry_open, Off: 9c, Addr: 0x1015bcbc
[<0000000010130d64>]: Func: call_console_drivers, Off: ec, Addr: 0x10130d64

Done.
---


Stack Dump:
 0000000017a0d080:  000000380804060e 00000000fffffff4 0000000010153e44 0000000000000000
 0000000017a0d060:  0000000000000802 00000000106fb6f8 0000000000000001 000000001033a150
 0000000017a0d040:  0000000000000000 000000001033a128 00000000103d0d30 0000000000007988
 0000000017a0d020:  0000000000000085 00000000103d0d30 0000000000000006 0000000600024a34
 0000000017a0d000:  000000001798a080 0000000000000000 000000001010d714 0000000017a0c000
 0000000017a0cfe0:  000000000000000f 00000000178e0000 00000000103d0d30 00000000103d0d30

Kernel addresses on the stack:
 [<0000000010153e44>]  [<000000001010d714>]  [<000000001010e1e8>]  [<0000000010154118>] 
 [<00000000101d6b40>]  [<00000000101d84a4>]  [<00000000101d8f84>]  [<00000000101447d0>] 
 [<00000000101bdae4>]  [<00000000101272a4>]  [<00000000101715f4>]  [<0000000010127648>] 
 [<000000001015c150>]  [<0000000010171538>]  [<0000000010108df0>]  [<000000001010809c>] 
 [<0000000010108b3c>]  [<000000001015bcbc>]  [<0000000010130d64>] 

Kernel Fault: Code=26 regs=0000000017a0d080 (Addr=0000000000000003)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000011000001110 Not tainted
r00-03  0000000000000000 00000000103d2530 00000000101168ac 00000000103d0d30
r04-07  0000000010054db8 00000000103d0d30 00000000103c8690 00000000102ede58
r08-11  0000000010452228 0000000004000000 00000000000243c8 00000000faf00012
r12-15  000000000000ffff 0000000000013000 0000000000013000 0000000000013000
r16-19  0000000000005000 0000000000013000 00000000000243c8 0000000000000000
r20-23  00000000103d7530 0000000000000000 0000000010079200 00000000102ede58
r24-27  0000000017a0d00c 0000000017a0d008 0000000010054db8 00000000103d0d30
r28-31  0000000000000060 0000000017a0d070 0000000017a0d080 0000000000000000
sr0-3   000000000000b980 000000000000b980 0000000000000000 000000000000b980
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001011675c 0000000010116760
 IIR: 0e661014    ISR: 0000000000000000  IOR: 0000000000000003
 CPU:        0   CR30: 0000000017a0c000 CR31: 0000000010420000
 ORIG_R28: 000000001015384c



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] oops with 2.4.20-pa10-UP on rp2430
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> In an attempte to get a new rp2430 booting I tried the latest online
> kernels without much success.
> 
> ftp://ftp.parisc-linux.org/kernels/a500
> 
> Booted 2.4.20-UP
> Using teh dump-analyzer, but objdump on x86 complains a little about the
> architecture... objdump: Can't disassemble for architecture UNKNOWN!,
> which I'm assuming means I should probably be using a cross or
> multi-arch binutils to do this?
> ---

Using the correct binutils:


IAOQ = 000000001011675c
Func: iosapic_set_irt_data, Off: c, Addr: 0x1011675c
0000000010116750 <iosapic_set_irt_data>:
    10116750:	0f 50 10 d3 	ldd 8(,r26),r19
    10116754:	2b 60 30 00 	addil 1800,dp,%r1
    10116758:	34 15 00 00 	ldi 0,r21
    1011675c:	0e 66 10 14 	ldb 3(,r19),r20

GR0 = 0000000000000000

GR1 = 00000000103d2530
Func: __gp, Off: 1800, Addr: 0x103d2530

GR2 = 00000000101168ac
Func: iosapic_enable_irq, Off: 3c, Addr: 0x101168ac
    101168a0:	37 d9 3f 11 	ldo -78(sp),r25
    101168a4:	eb ff bd 4d 	b,l 10116750 <iosapic_set_irt_data>,%r2
    101168a8:	08 04 02 5a 	copy r4,r26
    101168ac:	08 05 02 5b 	copy r5,dp

GR3 = 00000000103d0d30
Func: __gp, Off: 0, Addr: 0x103d0d30

GR4 = 0000000010054db8

GR5 = 00000000103d0d30
Func: __gp, Off: 0, Addr: 0x103d0d30

GR6 = 00000000103c8690
Func: __stop___ksymtab, Off: 14840, Addr: 0x103c8690

GR7 = 00000000102ede58
Func: twist_table___0, Off: 4d0, Addr: 0x102ede58

GR8 = 0000000010452228
Func: IRQ_ports, Off: 428, Addr: 0x10452228

GR9 = 0000000004000000

GR10 = 00000000000243c8

GR11 = 00000000faf00012

GR12 = 000000000000ffff

GR13 = 0000000000013000

GR14 = 0000000000013000

GR15 = 0000000000013000

GR16 = 0000000000005000

GR17 = 0000000000013000

GR18 = 00000000000243c8

GR19 = 0000000000000000

GR20 = 00000000103d7530
Func: __gp, Off: 6800, Addr: 0x103d7530

GR21 = 0000000000000000

GR22 = 0000000010079200

GR23 = 00000000102ede58
Func: twist_table___0, Off: 4d0, Addr: 0x102ede58

GR24 = 0000000017a0d00c

GR25 = 0000000017a0d008

GR26 = 0000000010054db8

GR27 = 00000000103d0d30
Func: __gp, Off: 0, Addr: 0x103d0d30

GR28 = 0000000000000060

GR29 = 0000000017a0d070

GR30 = 0000000017a0d080

GR31 = 0000000000000000

Kernel symbols on the stack:
[<0000000010153e44>]: Func: __alloc_pages, Off: 84, Addr: 0x10153e44
[<000000001010d714>]: Func: enable_irq, Off: 5c, Addr: 0x1010d714
[<000000001010e1e8>]: Func: request_irq, Off: 138, Addr: 0x1010e1e8
[<0000000010154118>]: Func: get_zeroed_page, Off: 58, Addr: 0x10154118
[<00000000101d6b40>]: Func: startup, Off: 580, Addr: 0x101d6b40
[<00000000101d84a4>]: Func: set_serial_info, Off: 404, Addr: 0x101d84a4
[<00000000101d8f84>]: Func: rs_ioctl, Off: 39c, Addr: 0x101d8f84
[<00000000101447d0>]: Func: handle_mm_fault, Off: 148, Addr: 0x101447d0
[<00000000101bdae4>]: Func: tty_ioctl, Off: 2f4, Addr: 0x101bdae4
[<00000000101272a4>]: Func: do_tiocgserial, Off: 44, Addr: 0x101272a4
[<00000000101715f4>]: Func: sys_ioctl, Off: bc, Addr: 0x101715f4
[<0000000010127648>]: Func: sys32_ioctl, Off: 140, Addr: 0x10127648
[<000000001015c150>]: Func: sys_open, Off: c0, Addr: 0x1015c150
[<0000000010171538>]: Func: sys_ioctl, Off: 0, Addr: 0x10171538
[<0000000010108df0>]: Func: syscall_exit, Off: 0, Addr: 0x10108df0
[<000000001010809c>]: Func: intr_restore, Off: 0, Addr: 0x1010809c
[<0000000010108b3c>]: Func: child_return, Off: 0, Addr: 0x10108b3c
[<000000001015bcbc>]: Func: dentry_open, Off: 9c, Addr: 0x1015bcbc
[<0000000010130d64>]: Func: call_console_drivers, Off: ec, Addr: 0x10130d64

Done.


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On Mon, 2003-07-14 at 05:48, Joel Soete wrote:
> I don' t remember the historical reason of this choice but do you think it
> is possible to back-port it into 2.4 (it will facilitate so much the merge
> with upstream?)

Well, I suppose, theoretically.

However, before we consider backporting, what I really need is for
people to test it.  Downward growing mappings may cause application
issues:  If you map to an unspecified address, you may be surprised to
discover that you can't expand the mapping upwards.  Of course, no
application should ever depend on being able to expand unspecified maps
in either direction, but you never know...

James







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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] 2.4.21-paX on an rp2430
Date: Mon, 14 Jul 2003 13:48:24 -0600
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To: Carlos O'Donell <carlos@baldric.uwo.ca>
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On Mon, Jul 14, 2003 at 02:23:47PM -0400, Carlos O'Donell wrote:
> Has anyone tried testing the prebuilt kernels on newer machines?

sorry - I still build my own to test my own changes.

> I also tried a newer vmlinux-2.4.20-pa10-UP and the kernel oopses :(

i've uploaded a *PRE-RELEASE* 2.4.21-pa5.tgz to:
	ftp://ftp.parisc-linux.org/kernels/a500/2.4.21-pa5.tgz

This boots and runs on my a500-65 and recent rp2430s.

FYI, I used lifimage-2.4.20-pa35-20030513 which I think
came from the ESIEE web site. Should be available from ftp.p-l.o
as well.

grant


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] 2.4.21-paX on an rp2430
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On Mon, Jul 14, 2003 at 01:48:24PM -0600, Grant Grundler wrote:
> i've uploaded a *PRE-RELEASE* 2.4.21-pa5.tgz to:
> 	ftp://ftp.parisc-linux.org/kernels/a500/2.4.21-pa5.tgz

BTW, I'm trying to fix "sendfile". I missing some peice to make
the 32-bit syscall wrapper to work right.

It works fine to 32-bit kernel
grundler <504>./sftest foo
sendfile returned ret = 7013 off = 7013 errno = 0
grundler <505>ls -l foo
-rw-r--r--    1 grundler grundler     7013 Jul 14 14:03 foo
grundler <506>uname -a
Linux debian 2.4.21-pa2 #46 Sat Jul 5 23:28:38 PDT 2003 parisc GNU/Linux

But not for 64-bit kernel:
grundler@gsyprf11:~$ ./sftest x
sendfile returned ret = 7013 off = 0 errno = 0
grundler@gsyprf11:~$ ls -l x
-rw-r--r--    1 grundler users        7013 Jul 14 14:05 x

and thanks to tausq for whipping up the simple test case.
"distcc" won't work on my a500 "mini cluster" until this is fixed. :^)

grant


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From: Randolph Chung <tausq@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] hppa-linux BOF at OLS
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Hi *,

For those of you who plan to be attending OLS in a week, I've put up
some notes for the hppa/Debian BOF:

http://www.parisc-linux.org/~tausq/ols-hppa-bof.txt

The plan is to keep the BOF informal. We'll talk a bit about where we
are, but mostly I hope we'll have some discussions about how we plan to
move forward -- there are several important TODO items on the list, so
hopefully we can get people interested in contributing in those areas.

hope to see you there!
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: [parisc-linux] 2.6.0-test1: Kernel pci bug ?
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>I've merged 2.6.0-test1 into our CVS.  I think the additional hyphen in

>2.6.0-test1-pa0 may break some scripts.
>
>This would be a great time to start reporting problems and fixing bugs

Hi Willy,

Here is my kernel dump booting today cvs update of 2.6.0-test1-p0 on a b180L:

Command line for kernel: 'root=/dev/md2 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.0-test1-pa0'
Selected kernel: /vmlinux-2.6.0-test1-pa0 from partition 2
ELF32 executable
Entry 00100260 first 00100000 n 3
Segment 0 load 00100000 size 2514996 mediaptr 0x1000
Segment 1 load 00368000 size 381172 mediaptr 0x268000
Segment 2 load 003c8000 size 532608 mediaptr 0x2c6000
Branching to kernel entry point 0x00100260.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.0-test1-pa0 (root@fw02.office.palinux) (gcc version 3.3
(Debian)) #1 Tue Jul 15 14:55:40 CEST 2003
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005040 00000481 00000000 02020202 77d03653 100000f0 00000004 000000ba
000000ba
vers  00000018
CPUID vers 15 rev 24 (0x000001f8)
capabilities 0x2
model 9000/778/B180L
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
  DMA zone: 32768 pages, LIFO batch:8
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Building zonelist for node : 0
Kernel command line: root=/dev/md2 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.0-test1-pa0
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Calibrating delay loop... 119.60 BogoMIPS
Memory: 126024k available
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
-> /dev
-> /dev/console
-> /root
POSIX conformance testing by UNIFIX
Initializing RT netlink socket
EISA bus registered
Searching for devices...
Found devices:
1. Merlin+ 132 Dino PS/2 Port (10) at 0xfff81000 [1], versions 0x22, 0x0,
0x96
2. Phantom PseudoBC GSC+ Port (7) at 0xffc00000 [8], versions 0x504, 0x0,
0x0
3. Dino PCI Bridge (13) at 0xfff80000 [8/0], versions 0x680, 0x3, 0xa,  additional
addresses: 0xf0800000 
4. Merlin+ 132 Dino RS-232 (10) at 0xfff83000 [8/0/63], versions 0x22, 0x0,
0x8c
5. Merlin+ 180 Core BA (11) at 0xffd00000 [8/16], versions 0x3f, 0x0, 0x81,
 additional addresses: 0xffd0c000 0xffc00000 
6. Merlin+ 180 Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x3f,
0x0, 0x74,  additional addresses: 0xffd01000 0xffd03000 
7. Merlin+ 180 Core Audio (10) at 0xffd04000 [8/16/1], versions 0x3f, 0x4,
0x7b
8. Merlin+ 180 Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x3f, 0x0,
0x8c
9. Merlin+ 180 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x3f, 0x0,
0x82
10. Merlin+ 180 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x3f,
0x0, 0x84
11. Merlin+ 180 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x3f,
0x0, 0x84
12. Gecko GSC Core Graphics (10) at 0xf8000000 [8/24], versions 0x16, 0x0,
0x85,  additional addresses: 0xf0011000 
13. Merlin L2+ 180 (9000/778/B180L) (0) at 0xfffbe000 [62], versions 0x504,
0x0, 0x4
14. Memory (1) at 0xfffbf000 [63], versions 0x5a, 0x0, 0x9
CPU(s): 1 x PA7300LC (PCX-L2) at 180.000000 MHz
Lasi version 0 at 0xffd00000 found.
Dino version 3.1 found at 0xfff80000
kernel BUG at arch/parisc/kernel/pci.c:338!
Kernel addresses on the stack:
 [<101245ec>] printk+0x17c/0x1bc
 [<10105938>] dump_stack+0x18/0x24
 [<101122fc>] pcibios_register_hba+0x74/0x7c
 [<103d696c>] dino_common_init+0x2c/0x1e4
 [<103d68f8>] dino_bridge_init+0x74/0xbc
 [<103d6c54>] dino_driver_callback+0x130/0x258
 [<1018a244>] sysfs_create_dir+0xcc/0x118
 [<1010dce0>] parisc_driver_probe+0x2c/0x60
 [<10216698>] bus_match+0x48/0x80
 [<102167bc>] driver_attach+0x68/0x70
 [<10216a18>] bus_add_driver+0x9c/0xac
 [<10216a20>] bus_add_driver+0xa4/0xac
 [<10216d90>] driver_register+0x48/0x54
 [<10216d90>] driver_register+0x48/0x54
 [<103d6d94>] dino_init+0x18/0x28
 [<103cd1a4>] parisc_init+0xcc/0xdc
 [<103c945c>] do_initcalls+0x58/0xdc
 [<101003f8>] init+0x2c/0x144
 [<10109c5c>] ret_from_kernel_thread+0x1c/0x24

BIO: pool of 256 setup, 14Kb (56 bytes/bio)
biovec pool[0]:   1 bvecs: 244 entries (12 bytes)
biovec pool[1]:   4 bvecs: 244 entries (48 bytes)
biovec pool[2]:  16 bvecs: 244 entries (192 bytes)
biovec pool[3]:  64 bvecs: 244 entries (768 bytes)
biovec pool[4]: 128 bvecs: 122 entries (1536 bytes)
biovec pool[5]: 256 bvecs:  61 entries (3072 bytes)
SCSI subsystem initialized
drivers/usb/core/usb.c: registered new driver hub
pty: 256 Unix98 ptys configured
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing enabled
Soft power switch enabled, polling @ 0xf0140000.
lp: driver loaded but no devices found
Generic RTC Driver v1.07
ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xfff83800 (irq = 106) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
airo:  Probing for PCI adapters
airo:  Finished probing for PCI adapters
Linux Tulip driver version 1.1.13 (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 65 at 0xff00, 00:10:83:35:2A:A9, IRQ 96.
sym53c8xx: at PCI bus 0, device 19, function 0
sym53c8xx: 53c875 detected 
sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 99
ERROR: SCSI host `sym53c8xx' has no error handling
ERROR: This is not a safe way to run your SCSI host
ERROR: The error handling must be added to this driver
Kernel addresses on the stack:
 [<101245ec>] printk+0x17c/0x1bc
 [<10105938>] dump_stack+0x18/0x24
 [<1023ca74>] scsi_host_alloc+0x268/0x270
 [<101245ec>] printk+0x17c/0x1bc
 [<1023ca90>] scsi_register+0x14/0x74
 [<103e0248>] ncr_attach+0x7c/0x8fc
 [<103e20b8>] ncr_get_nvram+0xa0/0xb4
 [<103e195c>] sym53c8xx_detect+0x29c/0x374
 [<101691d4>] page_symlink+0x160/0x24c
 [<101897f8>] sysfs_create+0x84/0xf0
 [<1018a5e8>] sysfs_symlink+0x6c/0x84
 [<1016f688>] d_alloc+0x34/0x1f8
 [<10176de0>] simple_lookup+0x18/0x30
 [<101709bc>] alloc_inode+0x114/0x11c
 [<101714ac>] new_inode+0x10/0x70
 [<101896e0>] sysfs_new_inode+0x20/0xb4
 [<101897f8>] sysfs_create+0x84/0xf0
 [<1018a020>] sysfs_create_file+0xcc/0xe0
 [<101e80a8>] pci_populate_driver_dir+0x30/0x38
 [<101e81b8>] pci_register_driver+0x8c/0xa8
 [<103e2d64>] init_this_scsi_driver+0x40/0xd0
 [<103c945c>] do_initcalls+0x58/0xdc
 [<101003f8>] init+0x2c/0x144
 [<10109c5c>] ret_from_kernel_thread+0x1c/0x24

sym53c875-0: ID 7, Fast-20, Parity Checking
scsi0 : sym53c8xx-1.7.3c-20010512
anticipatory scheduling elevator
  Vendor: SEAGATE   Model: ST39140WS         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST39140WS         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
st: Version 20030622, fixed bufsize 32768, s/g segs 256
sym53c875-0-<5,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
sym53c875-0-<5,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
sym53c875-0-<5,0>: ODD transfer in DATA IN phase.
sym53c875-0-<5,0>: COMMAND FAILED (89 0) @00021000.
sym53c875-0-<5,0>: ODD transfer in DATA IN phase.
sym53c875-0-<5,0>: COMMAND FAILED (89 0) @00021000.
sym53c875-0-<5,0>: ODD transfer in DATA IN phase.
sym53c875-0-<5,0>: COMMAND FAILED (89 0) @00021000.
sym53c875-0-<5,0>: ODD transfer in DATA IN phase.
sym53c875-0-<5,0>: COMMAND FAILED (89 0) @00021000.
sym53c875-0-<5,0>: ODD transfer in DATA IN phase.
sym53c875-0-<5,0>: COMMAND FAILED (89 0) @00021000.
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 sda10 >
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
sym53c875-0-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
sym53c875-0-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 15)
SCSI device sdb: 17773524 512-byte hdwr sectors (9100 MB)
sym53c875-0-<6,0>: ODD transfer in DATA IN phase.
sym53c875-0-<6,0>: COMMAND FAILED (89 0) @00021000.
sym53c875-0-<6,0>: ODD transfer in DATA IN phase.
sym53c875-0-<6,0>: COMMAND FAILED (89 0) @00021000.
sym53c875-0-<6,0>: ODD transfer in DATA IN phase.
sym53c875-0-<6,0>: COMMAND FAILED (89 0) @00021000.
sym53c875-0-<6,0>: ODD transfer in DATA IN phase.
sym53c875-0-<6,0>: COMMAND FAILED (89 0) @00021000.
sym53c875-0-<6,0>: ODD transfer in DATA IN phase.
sym53c875-0-<6,0>: COMMAND FAILED (89 0) @00021000.
SCSI device sdb: drive cache: write back
 sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 sdb6 sdb7 sdb8 sdb9 sdb10 >
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 5, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 6, lun 0,  type 0
STI GSC/PCI core graphics driver Version 0.9a
STI word mode ROM at f0011000, hpa at f8000000
STI id 2d08c0a7-9a02587, conforms to spec rev. 8.07
STI device: INTERNAL_EG_1280
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
input: PS/2 keyboard port at 0xffd08000 (irq 69) found and attached
input: PS/2 mouse port at 0xffd08100 (irq 69) found and attached
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :   144.000 MB/sec
   8regs_prefetch:   144.000 MB/sec
   32regs    :   169.600 MB/sec
   32regs_prefetch:   169.600 MB/sec
raid5: using function: 32regs_prefetch (169.600 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
oprofile: using timer interrupt.
NET4: Linux TCP/IP 1.0 for NET4.0
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
md: Autodetecting RAID arrays.
md: autorun ...
md: considering sdb10 ...
md:  adding sdb10 ...
md: sdb9 has different UUID to sdb10
md: sdb8 has different UUID to sdb10
md: sdb7 has different UUID to sdb10
md: sdb6 has different UUID to sdb10
md: sdb5 has different UUID to sdb10
md: sdb3 has different UUID to sdb10
md: sdb2 has different UUID to sdb10
md:  adding sda10 ...
md: sda9 has different UUID to sdb10
md: sda8 has different UUID to sdb10
md: sda7 has different UUID to sdb10
md: sda6 has different UUID to sdb10
md: sda5 has different UUID to sdb10
md: sda3 has different UUID to sdb10
md: sda2 has different UUID to sdb10
md: created md7
md: bind<sda10>
md: bind<sdb10>
md: running: <sdb10><sda10>
md7: setting max_sectors to 128, segment boundary to 32767
raid1: raid set md7 active with 2 out of 2 mirrors
md: considering sdb9 ...
md:  adding sdb9 ...
md: sdb8 has different UUID to sdb9
md: sdb7 has different UUID to sdb9
md: sdb6 has different UUID to sdb9
md: sdb5 has different UUID to sdb9
md: sdb3 has different UUID to sdb9
md: sdb2 has different UUID to sdb9
md:  adding sda9 ...
md: sda8 has different UUID to sdb9
md: sda7 has different UUID to sdb9
md: sda6 has different UUID to sdb9
md: sda5 has different UUID to sdb9
md: sda3 has different UUID to sdb9
md: sda2 has different UUID to sdb9
md: created md6
md: bind<sda9>
md: bind<sdb9>
md: running: <sdb9><sda9>
md6: setting max_sectors to 128, segment boundary to 32767
raid1: raid set md6 active with 2 out of 2 mirrors
md: considering sdb8 ...
md:  adding sdb8 ...
md: sdb7 has different UUID to sdb8
md: sdb6 has different UUID to sdb8
md: sdb5 has different UUID to sdb8
md: sdb3 has different UUID to sdb8
md: sdb2 has different UUID to sdb8
md:  adding sda8 ...
md: sda7 has different UUID to sdb8
md: sda6 has different UUID to sdb8
md: sda5 has different UUID to sdb8
md: sda3 has different UUID to sdb8
md: sda2 has different UUID to sdb8
md: created md5
md: bind<sda8>
md: bind<sdb8>
md: running: <sdb8><sda8>
md5: setting max_sectors to 128, segment boundary to 32767
raid1: raid set md5 active with 2 out of 2 mirrors
md: considering sdb7 ...
md:  adding sdb7 ...
md: sdb6 has different UUID to sdb7
md: sdb5 has different UUID to sdb7
md: sdb3 has different UUID to sdb7
md: sdb2 has different UUID to sdb7
md:  adding sda7 ...
md: sda6 has different UUID to sdb7
md: sda5 has different UUID to sdb7
md: sda3 has different UUID to sdb7
md: sda2 has different UUID to sdb7
md: created md4
md: bind<sda7>
md: bind<sdb7>
md: running: <sdb7><sda7>
md4: setting max_sectors to 128, segment boundary to 32767
raid1: raid set md4 active with 2 out of 2 mirrors
md: considering sdb6 ...
md:  adding sdb6 ...
md: sdb5 has different UUID to sdb6
md: sdb3 has different UUID to sdb6
md: sdb2 has different UUID to sdb6
md:  adding sda6 ...
md: sda5 has different UUID to sdb6
md: sda3 has different UUID to sdb6
md: sda2 has different UUID to sdb6
md: created md3
md: bind<sda6>
md: bind<sdb6>
md: running: <sdb6><sda6>
md3: setting max_sectors to 128, segment boundary to 32767
raid1: raid set md3 active with 2 out of 2 mirrors
md: considering sdb5 ...
md:  adding sdb5 ...
md: sdb3 has different UUID to sdb5
md: sdb2 has different UUID to sdb5
md:  adding sda5 ...
md: sda3 has different UUID to sdb5
md: sda2 has different UUID to sdb5
md: created md2
md: bind<sda5>
md: bind<sdb5>
md: running: <sdb5><sda5>
md2: setting max_sectors to 128, segment boundary to 32767
raid1: raid set md2 active with 2 out of 2 mirrors
md: considering sdb3 ...
md:  adding sdb3 ...
md: sdb2 has different UUID to sdb3
md:  adding sda3 ...
md: sda2 has different UUID to sdb3
md: created md1
md: bind<sda3>
md: bind<sdb3>
md: running: <sdb3><sda3>
md1: setting max_sectors to 128, segment boundary to 32767
raid1: raid set md1 active with 2 out of 2 mirrors
md: considering sdb2 ...
md:  adding sdb2 ...
md:  adding sda2 ...
md: created md0
md: bind<sda2>
md: bind<sdb2>
md: running: <sdb2><sda2>
md0: setting max_sectors to 128, segment boundary to 32767
raid1: raid set md0 active with 2 out of 2 mirrors
md: ... autorun DONE.
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 524k freed

Stack Dump:
 17fb8598:  17fb8598 1037ffa0 17f00200 10086e40 
 17fb8588:  0003800c 00001000 17e31bac 00000000 
 17fb8578:  104758c8 000000d0 000000d0 00000001 
 17fb8568:  104758dc 104758e4 00000001 000000d0 
 17fb8558:  00027174 17fb828c 17fbf670 17fb8200 
 17fb8548:  0000000f 00027750 00000000 00000004 
 17fb8538:  00000006 00000010 00000000 10106304 
 17fb8528:  00000010 10086e40 10430a0c 17fb8488 
 17fb8518:  00000006 17ed1320 104758c8 1041f000 
 17fb8508:  000000d0 00000001 1037fec4 faf00810 
 17fb84f8:  0000005f 00000010 00000010 1013da9c 
 17fb84e8:  00000148 00000010 100300c8 10452904 
 17fb84d8:  00000056 00027750 00000000 0000000d 
 17fb84c8:  0000000e 10430980 1041f05b ffffffff 
 17fb84b8:  00000002 1033d117 ffffffff 17fb8350 
 17fb84a8:  1041f058 00000010 efbe0fa8 103855c8 
 17fb8498:  17fb828c 1037fec4 00000201 00000001 
 17fb8488:  103801e8 00000010 00000000 00000000 
 17fb8478:  17ed0000 10449840 10449840 1013dbd8 
 17fb8468:  17e31bac 17fb8210 17fb8108 00000101 
 17fb8458:  1037d000 10169704 00027174 00000000 
 17fb8448:  314307c0 10449840 00000000 1041f000 
 17fb8438:  00000000 00000000 00000000 1010a088 
 17fb8428:  105f71f8 105f70fc 00000000 16e69fa0 
 17fb8418:  1033d000 17fb828c 17fbf670 0000000a 
 17fb8408:  ffffffff ffffffff 105892a8 00000001 
 17fb83f8:  17fb82d0 10480668 1037fec4 1013a950 
 17fb83e8:  00000001 1041f000 105c5400 00000000 
 17fb83d8:  00000000 00000000 00027750 00000000 
 17fb83c8:  0c601094 0000000c 105c5400 10476730 
 17fb83b8:  00000000 40181838 10436604 101e5698 
 17fb83a8:  101e5694 00000000 00000000 00000000 
 17fb8398:  00000000 00000000 00000000 00000001 
 17fb8388:  00000000 00000001 00000001 17fb8108 
 17fb8378:  00000003 00000002 00000006 101667ec 
 17fb8368:  00000000 1036a010 17ecf820 17e31980 
 17fb8358:  00000000 10449f20 17ff5760 00000000 
 17fb8348:  00000000 00000003 00000002 1044a810 
 17fb8338:  000014f4 000006fc 00000df8 101562d8 
 17fb8328:  f0000c70 f0000194 07ffffe0 00000000 
 17fb8318:  00000000 00000001 1037fef8 0000000f 
 17fb8308:  1045b810 ffffc46a 0000000f 00000001 
 17fb82f8:  17fb8140 000000b4 103c8000 00000000 
 17fb82e8:  00000002 17ed0000 00000002 10452904 
 17fb82d8:  1037f810 00000000 00000002 17ed0000 
 17fb82c8:  00000002 00000002 10379020 f0100000 
 17fb82b8:  000000fd 000e0c48 00013000 101694b8 
 17fb82a8:  1036a010 104536cc 0000000f 00000000 
 17fb8298:  00000000 00000000 00000000 00000000 
 17fb8288:  00000000 00000000 00000000 40061097 
 17fb8278:  17fb8200 00000400 00027752 10368010 
 17fb8268:  00027752 00000000 00000000 0000000c 
 17fb8258:  000000e0 00027753 00001000 10368010 
 17fb8248:  ffffffff 00027974 10368010 1037d000 
 17fb8238:  17fbf670 00000000 00027174 10169704 
 17fb8228:  1037d000 00000001 17fb80c8 10413a20 
 17fb8218:  0000000e 0000000d 00000000 00027750 
 17fb8208:  1013063c 103ba504 0006ff0e 40011c37 
 17fb81f8:  17fb8180 17fbf670 17ed0000 101562d8 
 17fb81e8:  17ecf6a0 104307c0 10368010 10449840 
 17fb81d8:  00027174 ffffffe0 17fbf670 0000003f 
 17fb81c8:  00000040 10413a14 00000000 1037d000 
 17fb81b8:  10368010 10368010 ffffffff 1013063c 
 17fb81a8:  00020002 17ed0000 00020002 00027174 

Kernel addresses on the stack:
 [<10106008>] parisc_terminate+0x54/0xac
 [<10106304>] handle_interruption+0x2a4/0x5b4
 [<1013da9c>] buffered_rmqueue+0xd8/0x164
 [<1013dbd8>] __alloc_pages+0xb0/0x368
 [<1010a088>] intr_check_sig+0x0/0xc
 [<1013a950>] filemap_nopage+0x35c/0x3e8
 [<101e5698>] __canonicalize_funcptr_for_compare+0x3c/0x134
 [<101667ec>] may_open+0x58/0x1c8
 [<101562d8>] dentry_open+0x12c/0x1b8
 [<101694b8>] locate_fd+0x124/0x160
 [<10169704>] sys_dup+0x24/0x30
 [<101562d8>] dentry_open+0x12c/0x1b8
 [<1013063c>] do_sigaction+0xe0/0x290
 [<101062d4>] handle_interruption+0x274/0x5b4
 [<10130b44>] sys_rt_sigaction+0x7c/0xc4
 [<1010afe8>] syscall_exit+0x0/0x28
 [<1010a088>] intr_check_sig+0x0/0xc


Kernel Fault: Code=15 regs=17fb8200 (Addr=00027750)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001110 Not tainted
r00-03  00000000 103ba504 1013063c 00027750
r04-07  00000000 0000000d 0000000e 10413a20
r08-11  17fb80c8 00000001 1037d000 10169704
r12-15  00027174 00000000 17fbf670 1037d000
r16-19  10368010 00027974 ffffffff 10368010
r20-23  00001000 00027753 000000e0 0000000c
r24-27  00000000 00000000 00027752 10368010
r28-31  00027752 00000400 17fb8200 40061097
sr0-3   00000001 00000001 00000000 00000001
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101e5694 101e5698
 IIR: 0c601094    ISR: 00000000  IOR: 00027750
 CPU:        0   CR30: 17fb8000 CR31: 103bd000
 ORIG_R28: 00000000
 IAOQ[0]: __canonicalize_funcptr_for_compare+0x38/0x134
 IAOQ[1]: __canonicalize_funcptr_for_compare+0x3c/0x134
 RP(r2): do_sigaction+0xe0/0x290

Any idea?

Joel

PS: build with gcc-3.3-2 and binutils-2.13.90.0.18-1 ?

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From - Thu Nov 08 21:28:26 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: 2.6.0-test1: Kernel pci bug ?
Date: Tue, 15 Jul 2003 15:12:49 +0100
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Cc: Matthew Wilcox <willy@debian.org>, parisc-linux@parisc-linux.org
To: Joel Soete <jsoe0708@tiscali.be>
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On Tue, Jul 15, 2003 at 03:58:36PM +0200, Joel Soete wrote:
> kernel BUG at arch/parisc/kernel/pci.c:338!

Oops, my mistake.  It's completely harmless, but I'll commit a fix
right now.

> sym53c8xx: at PCI bus 0, device 19, function 0
> sym53c8xx: 53c875 detected 
> sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 99
> ERROR: SCSI host `sym53c8xx' has no error handling
> ERROR: This is not a safe way to run your SCSI host
> ERROR: The error handling must be added to this driver

Can you use the sym2 driver instead of the original sym driver?

> Freeing unused kernel memory: 524k freed
> 
> Kernel addresses on the stack:
>  [<10106008>] parisc_terminate+0x54/0xac
>  [<10106304>] handle_interruption+0x2a4/0x5b4
>  [<1013da9c>] buffered_rmqueue+0xd8/0x164
>  [<1013dbd8>] __alloc_pages+0xb0/0x368
>  [<1010a088>] intr_check_sig+0x0/0xc
>  [<1013a950>] filemap_nopage+0x35c/0x3e8
>  [<101e5698>] __canonicalize_funcptr_for_compare+0x3c/0x134
>  [<101667ec>] may_open+0x58/0x1c8
>  [<101562d8>] dentry_open+0x12c/0x1b8
>  [<101694b8>] locate_fd+0x124/0x160
>  [<10169704>] sys_dup+0x24/0x30
>  [<101562d8>] dentry_open+0x12c/0x1b8
>  [<1013063c>] do_sigaction+0xe0/0x290
>  [<101062d4>] handle_interruption+0x274/0x5b4
>  [<10130b44>] sys_rt_sigaction+0x7c/0xc4
>  [<1010afe8>] syscall_exit+0x0/0x28
>  [<1010a088>] intr_check_sig+0x0/0xc
> 
> 
> Kernel Fault: Code=15 regs=17fb8200 (Addr=00027750)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001101111111100001110 Not tainted
> r00-03  00000000 103ba504 1013063c 00027750
> r04-07  00000000 0000000d 0000000e 10413a20
> r08-11  17fb80c8 00000001 1037d000 10169704
> r12-15  00027174 00000000 17fbf670 1037d000
> r16-19  10368010 00027974 ffffffff 10368010
> r20-23  00001000 00027753 000000e0 0000000c
> r24-27  00000000 00000000 00027752 10368010
> r28-31  00027752 00000400 17fb8200 40061097
> sr0-3   00000001 00000001 00000000 00000001
> sr4-7   00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 101e5694 101e5698
>  IIR: 0c601094    ISR: 00000000  IOR: 00027750
>  CPU:        0   CR30: 17fb8000 CR31: 103bd000
>  ORIG_R28: 00000000
>  IAOQ[0]: __canonicalize_funcptr_for_compare+0x38/0x134
>  IAOQ[1]: __canonicalize_funcptr_for_compare+0x3c/0x134
>  RP(r2): do_sigaction+0xe0/0x290
> 
> Any idea?

This is the fatal one.  Dying in __canonicalize_funcptr_for_compare ...
outside my realm of expertise (since i use gcc-3.0 still).

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


From - Thu Nov 08 21:28:26 2018
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Subject: [parisc-linux] Re: 2.6.0-test1: Kernel pci bug ?
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>Oops, my mistake.  It's completely harmless, but I'll commit a fix
>right now.

No pb (I would have to report it earlier also)

>> sym53c8xx: at PCI bus 0, device 19, function 0
>> sym53c8x
>>: 53c875 detected 
>> sym53c875-0: rev 0x4 on pci bus 0 device 19 function 0 irq 99
>> ERROR: SCSI host `sym53c8xx' has no error handling
>> ERROR: This is not a safe way to run your SCSI host
>> ERROR: The error handling must be added to this driver
>
>
> Can you use the sym2 driver instead of the original sym driver?

My bad: as we spook about the remove of sym1 I do not check. I will so test

>>calize_funcptr_for_compare+0x3c/0x134
>>  RP(r2): do_sigaction+0xe0/0x290
>> 
>> Any idea?
>
>This is the fatal one.  Dying in __canonicalize_funcptr_for_compare ...
>outside my realm of expertise (since i use gcc-3.0 still).

Ok I will do first retry with gcc-3.3 and sym2: report test.
If still failled comeback with gcc-3.0 and report also test.

Thanks,
    Joel

BTW Grant do you already put __canonicalise... stuff into 2.[56] I don't
reach to remember?


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This is a multi-part message in MIME format.
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This should go to the mailing list also...

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Message-ID: <3F13AABB.1030106@hrzpub.tu-darmstadt.de>
Date: Tue, 15 Jul 2003 09:18:19 +0200
From: =?ISO-8859-1?Q?R=FCdiger_Scholz?= <rscholz@hrzpub.tu-darmstadt.de>
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Subject: Re: [parisc-linux] real2.S in linux-2.5
References: <3F12C763.7010305@hrzpub.tu-darmstadt.de> <20030714152317.GI23808@parcelfarce.linux.theplanet.co.uk>
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Matthew Wilcox schrieb:

>Done.
>
Thanks.

>
> restore_control_regs:
>-       load32  PA(save_cr_space + (N_SAVED_REGS * REG_SZ)), %r26
>+       load32  PA(save_cr_space+(N_SAVED_REGS*REG_SZ)), %r26
>        POP_CR(%cr15, %r26)
>
>I'm a little annoyed this fix wasn't committed to 2.5 already.  I wonder
>what other bits went into the 2.4 tree without going into 2.5 first?
>
Looking at the mail archive for cvs I found the following checkins this 
month for linux-2.4 which had no similar checkin to linux-2.5. But I 
don't know much about kernel development, so perhaps these changes are 
nonly needed in linux-2.4.

    
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2003-July/032783.html
    
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2003-July/032788.html

>
>BTW, it's not for gcc-3.3's benefit, but for binutils' benefit.
>
Yes, I know. It was a quick'n'dirty email. ;)



--------------090204010400080205050000--



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Willy,

Good news:

[wsjso] jso /home/jso > ssh pafw02
Enter passphrase for key '/home/jso/.ssh/id_dsa': 
Linux fw02.office.palinux 2.6.0-test1-pa0 #1 Tue Jul 15 18:28:46 CEST 2003
parisc GNU/Linux
No mail.
jso@fw02:~$ 

It works when compile with sym2 (I do not try any more sym1) and compiled
with gcc-3.0. I will so tried now to port forward gg __canonicalize... stuff
and gcc-3.3.

Just an additional question: may I already try module support (I had a ragexl
pci card witch I would like to test in 2.6)?

Thanks a lot for this great job,
    Joel


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hi parisc people :-)

here i got something for you to investigate:

http://nikita.ath.cx/users/pappy/hppa/e35/boot/gentoo-beta04.txt

there is also another file in that directory with full INfo output.

notice the different scsi cards in it, Grant and Thibaut, did you get
into something regarding that?


thanks in advance,

Alex
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> http://nikita.ath.cx/users/pappy/hppa/e35/boot/gentoo-beta04.txt
> 
> there is also another file in that directory with full INfo output.
> 
> notice the different scsi cards in it, Grant and Thibaut, did you get
> into something regarding that?

http://www.parisc-linux.org/faq/kernelbug-howto.html

randolph
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Randolph Chung
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http://www.tausq.org/


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On Tue, Jul 15, 2003 at 06:57:58PM +0200, Alexander Gabert wrote:
> here i got something for you to investigate:
> 
> http://nikita.ath.cx/users/pappy/hppa/e35/boot/gentoo-beta04.txt

console=ttyB0, not ttyS0

> notice the different scsi cards in it, Grant and Thibaut, did you get
> into something regarding that?

need docs.  ryan's the most interested in those.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi Grant,

> It works when compiled with sym2 (I do not try any more sym1) and compiled
> with gcc-3.0. 
> I will so tried now to port forward gg __canonicalize... stuff and gcc-3.3.

I just reboot a 2.6.0... with your 2.4 patch about __canoncalize... and it
works also.
Can you ci it into 2.6 too.

Thanks in advance,
    Joel

PS: :_( led on front of my b180 doesn't flash anymore (just a joke)

------------------------------------------------------
Soldes Tiscali ADSL : 27,50 euros/mois jusque fin 2003.
On s'habitue vite  payer son ADSL moins cher!
Plus d'info? Cliquez ici... http://reg.tiscali.be/default.asp?lg=fr 




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From: Alexander Gabert <pappy@nikita.ath.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] E35 boots gentoo hppa beta04 into kernel fault
Date: Tue, 15 Jul 2003 20:37:48 +0200
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Cc: parisc-linux@parisc-linux.org
To: Matthew Wilcox <willy@debian.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:18944

thank you very much,

here is the output from palinux-2.4.20-pa35-20030513-netinst.iso
with the ttyB0 console:

http://nikita.ath.cx/users/pappy/hppa/e35/boot_netinst_pateam/noscsi.txt

thanks again, willy :-)

bye,

Alex


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Subject: [parisc-linux] Kernel 2.6.0-test1-pa0 crashes
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Hi,

yesterday I compiled the shiny new 2.6.0-kernel and tried to boot it on 
my 715/100. But it crashed right after the message "Freeing memory..."
Kernel was compiled with gcc-3.3.

Has anyone an idea why it crashed? Full System.map and Config-File is 
there: http://rscholz.bluehash.de/parisc .

TIA,
    Rdiger Scholz



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Subject: Re: [parisc-linux] Kernel 2.6.0-test1-pa0 crashes
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This is a multi-part message in MIME format.
--------------020209020800070707060502
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 8bit

Sorry, forgot the bootlog....

Rdiger Scholz schrieb:

> Hi,
>
> yesterday I compiled the shiny new 2.6.0-kernel and tried to boot it 
> on my 715/100. But it crashed right after the message "Freeing memory..."
> Kernel was compiled with gcc-3.3.
>
> Has anyone an idea why it crashed? Full System.map and Config-File is 
> there: http://rscholz.bluehash.de/parisc .
>
> TIA,
>    Rdiger Scholz
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>


--------------020209020800070707060502
Content-Type: text/plain;
 name="gandalf-2.6.0-test1.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="gandalf-2.6.0-test1.log"



----------------------------------------------------------------------------
BootRom Version    1.6  
Memory Size:  128 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.
----------------------------------------------------------------------------
Command                                Description
-------                                -----------
Auto [boot|search] [on|off]            Set/show auto mode
Boot [pri|alt [isl]]                   Boot from primary or alternate path
Boot [scsi|eisa.<slot>[.<addr>]] [isl] Boot from SCSI or EISA
Boot lan[.<addr>] [install] [isl]      Boot from LAN
Chassis [on|off]                       Set/show chassis codes display mode
DefaultSS                              Reboot and set EEPROM to default values
Diagnostic [on|off]                    Set/show diagnostic boot mode
Fastboot [on|off]                      Set/show fast boot mode
Help                                   Show this command menu
Information                            Show system information
LanAddress                             Show LAN station addresses
Monitor [<DEV>[.<type>]]               Set/show graphics monitor type
                                       (<DEV>=graphics|graphics_<1|2>)
Path [pri|alt [<DEV>[.<addr>]]]        Set/show boot source path
                                       (<DEV>=lan|scsi|eisa.<slot>)
Path [console [<DEV>[.<parm>]]]        Set/show boot console path
                                       (<DEV>=<RS232>|<GRAPH>
                                        <RS232>=rs232|rs232_2
                                        <parm>=<baud>.<length>.<parity>
                                        <GRAPH>=graphics|graphics_<1|2>
                                        <parm>=<monitor>)
Path [keyboard [hil|ps2]]              Set/show boot keyboard path
Pim [hpmc|toc|lpmc]                    Show PIM info
Search [ipl] [scsi|eisa]               Show potential boot devices
Search [ipl] [lan [install]]           Show potential boot LAN devices
Secure [on|off]                        Set/show security mode
----------------------------------------------------------------------------
BOOT_ADMIN> bo priipl


Not a boot path

BOOT_ADMIN> bo pri ipl





Attempting to boot.

Loading Initial Program Loader


IPL successfully loaded


Booting
palo ipl 1.2 root@b2000 Tue Jan 14 13:13:07 MST 2003


Partition Start(MB) End(MB) Id Type


1               1      22   f0 Palo

2              23      64   83 ext2

3              65     194   82 swap

4             195    2046   83 ext2


PALO(F0) partition contains:

    0/vmlinux32 3223985 bytes @ 0x48000


Information: No console specified on kernel command line. This is normal.

PALO will choose the console currently used by firmware (serial).Current command line:

2/vmlinux root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102

 0: 2/vmlinux
 1: root=/dev/sda4
 2: HOME=/
 3: devfs=mount
 4: console=ttyS0
 5: TERM=vt102

Edit which field?

(or 'b' to boot with this command line)? 0

2/vmlinux-2.6.0-test1-pa0

Current command line:

2/vmlinux-2.6.0-test1-pa0 root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102
 0: 2/vmlinux-2.6.0-test1-pa0
 1: root=/dev/sda4
 2: HOME=/
 3: devfs=mount
 4: console=ttyS0
 5: TERM=vt102

Edit which field?

(or 'b' to boot with this command line)? 0 b

Command line for kernel: 'root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.0-test1-pa0'
Selected kernel: /vmlinux-2.6.0-test1-pa0 from partition 2
ELF32 executable
Entry 00100220 first 00100000 n 3
Segment 0 load 00100000 size 2477712 mediaptr 0x1000
Segment 1 load 0035e000 size 389400 mediaptr 0x25e000
Segment 2 load 003c0000 size 303232 mediaptr 0x2be000
Branching to kernel entry point 0x00100220.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org


Linux version 2.6.0-test1-pa0 (root@gandalf) (gcc-Version 3.3.1 20030626 (Debian prerelease)) #1 Mon Jul 14 23:14:30 CEST 2003
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 000060b0 00000481 00000000 00000000 77b661a7 00000000 00000004 00000072 00000072
vers  0000000b
model 9000/715
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
  DMA zone: 32768 pages, LIFO batch:8
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Building zonelist for node : 0
Kernel command line: root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.0-test1-pa0
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Calibrating delay loop... 99.73 BogoMIPS
Memory: 126232k available
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
-> /dev
-> /dev/console
-> /root
POSIX conformance testing by UNIFIX
Initializing RT netlink socket
EISA bus registered
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf4000000 [0], versions 0x4, 0x0, 0x77
2. Mirage GSC Builtin Graphics (10) at 0xf8000000 [1], versions 0x13, 0x0, 0x85
3. Mirage Core BA (11) at 0xf0100000 [2], versions 0x29, 0x0, 0x81
4. Mirage Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x29, 0x0, 0x82
5. Mirage Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x29, 0x0, 0x8a
6. Mirage Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x29, 0x0, 0x8c
7. Mirage Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x29, 0x0, 0x74
8. Mirage Audio (10) at 0xf0104000 [2/0/8], versions 0x29, 0x0, 0x7b
9. Mirage Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x29, 0x0, 0x83
10. Mirage Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x29, 0x0, 0x84
11. Mirage Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x29, 0x0, 0x84
12. Mirage Wax BA (11) at 0xf0200000 [5], versions 0x13, 0x0, 0x8e
13. Mirage 100 Wax HIL (10) at 0xf0201000 [5/0/1], versions 0x13, 0x0, 0x73
14. Mirage Wax RS-232 (10) at 0xf0202000 [5/0/2], versions 0x13, 0x0, 0x8c
15. Mirage 100 (0) at 0xfffbe000 [8], versions 0x60b, 0x0, 0x4
16. Memory (1) at 0xfffbf000 [9], versions 0x4b, 0x0, 0x9
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
Lasi version 0 at 0xf0100000 found.
LED display at f00e0000 registered
Wax at 0xf0200000 found.
BIO: pool of 256 setup, 14Kb (56 bytes/bio)
biovec pool[0]:   1 bvecs: 244 entries (12 bytes)
biovec pool[1]:   4 bvecs: 244 entries (48 bytes)
biovec pool[2]:  16 bvecs: 244 entries (192 bytes)
biovec pool[3]:  64 bvecs: 244 entries (768 bytes)
biovec pool[4]: 128 bvecs: 122 entries (1536 bytes)
biovec pool[5]: 256 bvecs:  61 entries (3072 bytes)
SCSI subsystem initialized
STI GSC/PCI core graphics driver Version 0.9a
STI byte mode ROM at f4000000, hpa at f4000000
STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071A
STI word mode ROM at f0024000, hpa at f8000000
STI id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1024
fb0: stifb 1280x1024-8 frame buffer device, id: 2bcb015a, mmio: 0xf4100000
fb1: stifb 1024x768-8 frame buffer device, id: 2b4ded6d, mmio: 0xf8100000
Console: switching to colour frame buffer device 160x64
pty: 256 Unix98 ptys configured
VFS: Disk quotas dquot_6.5.1
Journalled Block Device driver loaded
devfs: v1.22 (20021013) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
udf: registering filesystem
Initializing Cryptographic API
Gecko-style soft power switch enabled.
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing enabled
ttyS0 at MMIO 0xf0105800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xf0202800 (irq = 121) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
PPP BSD Compression module registered
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 7A DC 08 IRQ 87.
82596.c $Revision: 1.29 $
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2 
scsi0 : LASI SCSI 53c700
anticipatory scheduling elevator
scsi0: (2:0) Synchronous at offset 8, period 100ns
  Vendor: PLEXTOR   Model: CD-ROM PX-20TS    Rev: 1.01
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi0: (3:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST32430N          Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
scsi0: (3:0) Enabling Tag Command Queuing
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
SCSI device sda: drive cache: none
 /dev/scsi/host0/bus0/target3/lun0: p1 p2 p3 p4
Attached scsi disk sda at scsi0, channel 0, id 3, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.12
Attached scsi generic sg0 at scsi0, channel 0, id 2, lun 0,  type 5
Attached scsi generic sg1 at scsi0, channel 0, id 3, lun 0,  type 0
Console: switching to colour frame buffer device 160x64
mice: PS/2 mouse device common for all mice
Keyboard initialization sequence failled
input: PS/2 keyboard port at 0xf0108000 (irq 69) found and attached
input: PS/2 mouse port at 0xf0108100 (irq 69) found and attached
NET4: Linux TCP/IP 1.0 for NET4.0
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 300k freed

Stack Dump:
 10594758:  10594758 0000000e 10594340 10360010 
 10594748:  103c0f78 00000001 00000000 1027c1f0 
 10594738:  105946c0 105fcf5c 00000000 101368b4 
 10594728:  100ecb60 00010501 00000008 00088000 
 10594718:  00000000 10375810 10594340 105943c0 
 10594708:  0000001a 00000000 00000b98 00000001 
 105946f8:  00000001 00000001 00000001 10106200 
 105946e8:  10423b8c ffffffdd 10423810 10423810 
 105946d8:  0000000e 105946d0 1042563c 105946c8 
 105946c8:  105946c8 ffffffdd ffffffff 00000004 
 105946b8:  10594508 00000001 10594694 1012a3d8 
 105946a8:  10423b8c ffffffdd 10423810 10423810 
 10594698:  0000000e 1036e088 00000b00 00000008 
 10594688:  00000002 ffffffdd 10423810 00000000 
 10594678:  41000000 00000000 40800000 1012a174 
 10594668:  40000000 00000000 40000000 7fffffff 
 10594658:  00000000 00000000 10360080 80000000 
 10594648:  00000000 1040d010 00000002 00000000 
 10594638:  41000000 00000000 40800000 10107130 
 10594628:  7fffffff 00000000 41000000 7fffffff 
 10594618:  00000000 00000000 10360080 80000000 
 10594608:  00000000 1040d010 00000002 10585288 
 105945f8:  10594388 10095350 00000001 1010a088 
 105945e8:  101446c0 0000014c 17ffe640 00000007 
 105945d8:  0000000f 000018f1 10413a58 000018f1 
 105945c8:  0000190f 10412810 10594500 00000000 
 105945b8:  41000000 00000000 40800000 1010a068 
 105945a8:  40000000 17ed8060 17ffe640 17ffe640 
 10594598:  17ed8064 10174d10 00000b98 00000000 
 10594588:  48930130 0000000e 17ed8060 00000000 
 10594578:  41000000 00000000 40800000 10231100 
 10594568:  102310fc 00000000 00000000 00000000 
 10594558:  00000000 00000000 00000000 00000000 
 10594548:  00000000 00000000 00000000 00000000 
 10594538:  41000000 00000000 40800000 00000000 
 10594528:  40000000 00000000 40000000 7fffffff 
 10594518:  41800000 00000000 40200000 00000000 
 10594508:  40200000 00000000 40300000 00000000 
 105944f8:  41000000 00000000 40800000 7fffffff 
 105944e8:  7fffffff 00000000 41000000 7fffffff 
 105944d8:  7fffffff 00000000 40800000 00000000 
 105944c8:  41000000 7fffffff 7fffffff 00000000 
 105944b8:  00000000 00000010 00000010 00000000 
 105944a8:  41800000 00000000 00000000 00000000 
 10594498:  00000000 ffffffff 7f7fffff ffffffff 
 10594488:  7f7fffff 7fffffff 7fffffff 00000000 
 10594478:  40800000 00000000 00000000 00000000 
 10594468:  00000000 00000000 00000000 00000000 
 10594458:  00000000 00000000 00000000 00000000 
 10594448:  00000000 00000000 000d081f 10231e6c 
 10594438:  105943c0 00000005 00000b00 1035e010 
 10594428:  10381c50 00000002 105942cc 00000002 
 10594418:  10110ca4 00000501 00000000 00000001 
 10594408:  00000000 00000002 f000b858 f0000704 
 105943f8:  00000001 105942cc 00000000 103c0f78 
 105943e8:  10360010 10412810 17ed8064 00000002 
 105943d8:  00000002 00000008 00000b00 1036e088 
 105943c8:  102310f8 10381810 0004ff0f 00000000 
 105943b8:  10594340 00000000 00000000 102310f8 
 105943a8:  00412700 f0105800 f0105800 17f20448 
 10594398:  17f2c288 00000000 17f204b4 17f20448 
 10594388:  17f2c288 17ff7854 17f204b4 f0000704 
 10594378:  1036e088 00000b00 17edc8d8 00000001 
 10594368:  00000002 17ed8064 10412810 10360010 

Kernel addresses on the stack:
 [<10122618>] scheduler_tick+0x84/0x434
 [<10105f50>] parisc_terminate+0x54/0xa8
 [<101368b4>] rcu_process_callbacks+0x8c/0xf0
 [<10106200>] handle_interruption+0x25c/0x564
 [<1012a3d8>] tasklet_action+0x7c/0xdc
 [<1012a174>] do_softirq+0xf0/0xf8
 [<10107130>] do_cpu_irq_mask+0x88/0xfc
 [<1010a088>] intr_check_sig+0x0/0xc
 [<1010a068>] intr_return+0x0/0x14
 [<10231100>] init_dev+0x5c/0x4c8
 [<103c0f78>] start_kernel+0x4/0x200
 [<102310f8>] init_dev+0x54/0x4c8
 [<10231bec>] tty_open+0x90/0x394
 [<101442a0>] kmem_cache_alloc+0x188/0x1bc
 [<10165130>] chrdev_open+0xac/0x144
 [<1015c0e4>] get_empty_filp+0x60/0x124
 [<101bb7f0>] devfs_open+0xa0/0xd0
 [<1015a794>] dentry_open+0x12c/0x1b0
 [<1015a660>] filp_open+0x68/0x70
 [<10126c40>] printk+0x140/0x1b4
 [<1015aafc>] sys_open+0x70/0xb0
 [<101003e8>] init+0x5c/0x150
 [<10109c5c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=26 regs=105943c0 (Addr=00000b98)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 10381810 102310f8 1036e088
r04-07  00000b00 00000008 00000002 00000002
r08-11  17ed8064 10412810 10360010 103c0f78
r12-15  00000000 105942cc 00000001 f0000704
r16-19  f000b858 00000002 00000000 00000001
r20-23  00000000 00000501 10110ca4 00000002
r24-27  105942cc 00000002 10381c50 1035e010
r28-31  00000b00 00000005 105943c0 10231e6c
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 102310fc 10231100
 IIR: 48930130    ISR: 00000000  IOR: 00000b98
 CPU:        0   CR30: 10594000 CR31: 103b5000
 ORIG_R28: 41000000
 IAOQ[0]: init_dev+0x58/0x4c8
 IAOQ[1]: init_dev+0x5c/0x4c8
 RP(r2): init_dev+0x54/0x4c8

--------------020209020800070707060502--



From - Thu Nov 08 21:28:27 2018
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] gcc 3.3 release x86->hppa64 failure?
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Xref: news.gmane.org gmane.linux.ports.parisc:18947

Has anyone recently tried to bootstrap an x86->hppa64 cross-compiler?
I'm going with cvs binutils, cvs gcc -rgcc_3_3_release.

'make boostrap'
---

make[2]: Entering directory
`/mnt/fatty/src/hppa-toolchain/gcc/build/gcc'
stage1/xgcc -Bstage1/
-B/mnt/fatty/src/hppa-toolchain/parisc/hppa64-linux/bin/ -c   -g -O2
-DIN_GCC -DCROSS_COMPILE  -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long
-DHAVE_CONFIG_H -DGENERATOR_FILE    -I. -I. -I../../gcc/gcc
-I../../gcc/gcc/. -I../../gcc/gcc/config -I../../gcc/gcc/../include
../../gcc/gcc/gengenrtl.c -o gengenrtl.o
In file included from ../../gcc/gcc/gengenrtl.c:29:
../../gcc/gcc/real.h:67: error: size of array `test_real_width' is
negative
make[2]: *** [gengenrtl.o] Error 1
make[2]: Leaving directory `/mnt/fatty/src/hppa-toolchain/gcc/build/gcc'
make[1]: *** [stage2_build] Error 2
make[1]: Leaving directory `/mnt/fatty/src/hppa-toolchain/gcc/build/gcc'
make: *** [bootstrap] Error 2

---

Refs: http://gcc.gnu.org/ml/gcc/2002-10/msg01471.html

gcc/real.h
---
65 /* Verify the guess.  */
66 extern char test_real_width
67   [sizeof(REAL_VALUE_TYPE) <= REAL_WIDTH*sizeof(HOST_WIDE_INT) ? 1 : -1];
---
# 66 "../../gcc/gcc/real.h"
extern char test_real_width
  [sizeof(struct real_value) <= (((128 + (8 * 4)) + 32)/(8 * 8) + (((128
  + (8 * 4)) + 32)%(8 * 8) ? 1 : 0))*sizeof(long long) ? 1 : -1];
---

Which under a normal gcc in x86 evaluates correclty, but under the
stage1 xgcc it doesn't. How can I, obviously without having a glibc in
64-bit userspace, analyze the value of 'sizeof(struct real_value)'?

c.


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> Has anyone recently tried to bootstrap an x86->hppa64 cross-compiler?
> I'm going with cvs binutils, cvs gcc -rgcc_3_3_release.
> 
> 'make boostrap'

'make bootstrap'?  There is no way stage2 can work in a cross.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Ramesh <jlssvrk@yahoo.com>
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Subject: [parisc-linux] Readline and ncurses libraries Problem
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Hi ,

 I am using Linux/i386 -> Linux/PARISC cross compiler
(xc-latest), while compiling some piece of code which
uses readline and ncurses lib i get this errors

/opt/palinux/lib/gcc-lib/hppa-linux/3.0.3/../../../../hppa-linux/bin/ld:
cannot find -lreadline
collect2: ld returned 1 exit status


Please tell me where can i find readline and ncurses
library for this version of cross compiler.


GCC Version: 3.0.3

Thx :)
Ramesh


__________________________________
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Subject: [parisc-linux] Kernel 2.6.0-test1-pa1 64bits failled to compile
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Hi all,

This today cvs update failled to compile on my N4000-55 with this very short
message:

  LD      init/built-in.o
  LD      .tmp_vmlinux1
make: *** [.tmp_vmlinux1] Error 139
palx4000:/usr/src/linux-2.6.0-test1-pa1# 

Build with following 64bits gcc:

# dpkg -l gcc\*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name                  Version               Description
+++-=====================-=====================-==========================================================
[...]
ii  gcc-hppa64            3.2.3-0.1             Cross gcc for hppa64
[...]

Is there some tips to get more verbose make output?

Thanks in advance,
    Joel



------------------------------------------------------
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On s'habitue vite  payer son ADSL moins cher!
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Subject: Re: [parisc-linux] Kernel 2.6.0-test1-pa1 64bits failled to compile
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On Wed, Jul 16, 2003 at 06:35:44PM +0200, Joel Soete wrote:
> This today cvs update failled to compile on my N4000-55 with this very short
> message:
> 
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
> make: *** [.tmp_vmlinux1] Error 139
> palx4000:/usr/src/linux-2.6.0-test1-pa1# 

that's make segfaulting.  139 is 128 + 11 == signal 11 == segfault.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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In reference to a message from Matthew Wilcox, dated Jul 16:
> On Wed, Jul 16, 2003 at 06:35:44PM +0200, Joel Soete wrote:
> > This today cvs update failled to compile on my N4000-55 with this very short
> > message:
> > 
> >   LD      init/built-in.o
> >   LD      .tmp_vmlinux1
> > make: *** [.tmp_vmlinux1] Error 139
> > palx4000:/usr/src/linux-2.6.0-test1-pa1# 
> 
> that's make segfaulting.  139 is 128 + 11 == signal 11 == segfault.

and the workaround for this for now is to disable CONFIG_KALLSYMS. I
sent Dave a patch to review to fix this problem last night. let's see
how that goes.

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> > Has anyone recently tried to bootstrap an x86->hppa64 cross-compiler?
> > I'm going with cvs binutils, cvs gcc -rgcc_3_3_release.
> > 
> > 'make boostrap'
> 
> 'make bootstrap'?  There is no way stage2 can work in a cross.

Erm. My mistake. I inadvertantly used 'make boostrap' in my build
script. Obviously not thinking since stage2 would not be able to build a
stage3 since it can't run the executable it builds.

c.



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>
>On Mon, 2003-07-14 at 05:48, Joel Soete wrote:
> I don' t remember the historical reason of this choice but do you think
it
> is possible to back-port it into 2.4 (it will facilitate so much the merge
> with upstream?)

>Well, I suppose, theoretically.

> However, before we consider backporting, what I really need is for
> people to test it. 

Ok Jame, Now I have a 32bits 2.6.0-test1-pa1 running so I come back to you.

No problem to apply it :) , so I can launch the compile.

Just a question in the mean time: it doesn't seens that your patch take care
of CONFIG_STACK_GROWSUP in related files?

Thanks,
    Joel


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On Wed, Jul 16, 2003 at 07:30:29PM +0200, Joel Soete wrote:
> Ok Jame, Now I have a 32bits 2.6.0-test1-pa1 running so I come back to you.
> 
> No problem to apply it :) , so I can launch the compile.
> 
> Just a question in the mean time: it doesn't seens that your patch take care
> of CONFIG_STACK_GROWSUP in related files?

um, the stack continues to grow up.  it's just a question of where the
stack starts at.  before, it was at top of memory - stack limit, now it's
at task_unmapped_base and mmaps grow down from the top of memory.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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>> palx4000:/usr/src/linux-2.6.0-test1-pa1# 
>
>that's make segfaulting.  139 is 128 + 11 == signal 11 == segfault.

Too bad (i will try to grab back gcc-3.0 64bits so)

thanks,
    Joel


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>and the workaround for this for now is to disable CONFIG_KALLSYMS. I
>sent Dave a patch to review to fix this problem last night. let's see
>how that goes.

Thanks Randolph (I go to sleep now :) )

Joel


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Hello again,

Jan Sporbeck wrote:
> Hello,
> 
> I am just wondering if the chassis lcd is supported on 9000/801/D200.

Doesnot anyone know?
Is there no one using the lcd on a D-class?

thanks,
/jan.



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Subject: [parisc-linux] 2.6.0-test1-pa1, fails, to, boot, on, rp2430
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pa,

My rp2430 has yet to boot into a usable userspace, it always dies at
some point after serial console setup.

Today for fun I reseated everything, added ram upto 1.5GB, and stuck in
my PCI Matrox II card into the first PCI slot.

I don't get any further than the end of the output. Any thoughts about
PCI problems would be welcome :)

The output is as follows:
---

Command line for kernel: 'console=/dev/ttyS0 root=/dev/sda2 palo_kernel=0/vmlinux64'
Selected kernel: /vmlinux64 from partition 0
ELF64 executable
Entry 00100000 first 00100000 n 1
Segment 0 load 00100000 size 4219008 mediaptr 0x1000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.0-test1-pa0 (tausq@ios) (gcc version 3.0.4) #112 Tue Jul 15 22:35:45 PDT 2003
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00005e20 00000491 00000000 00000001 6dd843ae 100000f0 00000008 000000b2 000000b2
vers  00000203
CPUID vers 19 rev 8 (0x00000268)
capabilities 0x5
model 9000/800/A500-6X
Total Memory: 1536 Mb
pagetable_init
On node 0 totalpages: 393216
  DMA zone: 393216 pages, LIFO batch:16
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Building zonelist for node : 0
Kernel command line: console=/dev/ttyS0 root=/dev/sda2 palo_kernel=0/vmlinux64
PID hash table entries: 16 (order 4: 256 bytes)
Console: colour dummy device 160x64
Calibrating delay loop... 1294.33 BogoMIPS
Memory: 1534524k available
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Mount-cache hash table entries: 256 (order: 0, 4096 bytes)
-> /dev
-> /dev/console
-> /root
POSIX conformance testing by UNIFIX
Initializing RT netlink socket
Searching for devices...
Found devices:
1. Crescendo 650 W2 (0) at 0xfffffffffffa0000 [160], versions 0x5e2, 0x0, 0x4
2. Astro BC Runway Port (12) at 0xfffffffffed00000 [0], versions 0x582, 0x0, 0xb
3. Elroy PCI Bridge (13) at 0xfffffffffed30000 [0/0], versions 0x782, 0x0, 0xa
4. Elroy PCI Bridge (13) at 0xfffffffffed34000 [0/2], versions 0x782, 0x0, 0xa
5. Elroy PCI Bridge (13) at 0xfffffffffed38000 [0/4], versions 0x782, 0x0, 0xa
6. Elroy PCI Bridge (13) at 0xfffffffffed3c000 [0/6], versions 0x782, 0x0, 0xa
7. Memory (1) at 0xfffffffffed08000 [8], versions 0x9b, 0x0, 0x9
CPU(s): 1 x PA8700 (PCX-W2) at 650.000000 MHz
SBA found Astro 2.1 at 0xfffffffffed00000
lba version TR4.0 (0x5) found at 0xfffffffffed30000
kernel BUG at arch/parisc/kernel/pci.c:338!
Kernel addresses on the stack:
 [<000000001010e3d8>] show_trace+0x40/0x110
 [<000000001010e224>] dump_stack+0x24/0x38
 [<0000000010117d00>] pcibios_register_hba+0x70/0xc8
 [<00000000104a3b18>] lba_common_init+0x38/0x68
 [<00000000104a3ce4>] lba_driver_callback+0x19c/0x300
 [<00000000101c9b88>] sysfs_create_dir+0xa0/0x168
 [<0000000010113a10>] parisc_driver_probe+0x48/0x90
 [<0000000010280688>] bus_match+0x70/0xb8
 [<0000000010280818>] driver_attach+0x98/0xa8
 [<0000000010280b68>] bus_add_driver+0xd8/0xf0
 [<0000000010112b70>] pdc_pat_get_irt+0x48/0x68
 [<0000000010281098>] driver_register+0x48/0x60
 [<0000000010113c28>] register_parisc_driver+0x158/0x170
 [<00000000104a3e6c>] lba_init+0x24/0x38
 [<00000000104965f4>] parisc_init+0x114/0x130
 [<000000001049096c>] do_initcalls+0x84/0x120
 [<0000000010490a50>] do_basic_setup+0x48/0x78
 [<00000000101003b8>] init+0x38/0x238
 [<000000001010947c>] ret_from_kernel_thread+0x24/0x38

lba range[2] : ignoring GMMIO (0xfffffff804000000)

PCI: No parent found for region 6 of device 0000:00:00.0 [ffffffffb7f00000:ffffffffb7f3ffff]
lba version TR4.0 (0x5) found at 0xfffffffffed34000
kernel BUG at arch/parisc/kernel/pci.c:338!
Kernel addresses on the stack:
 [<000000001010e3d8>] show_trace+0x40/0x110
 [<000000001010e224>] dump_stack+0x24/0x38
 [<0000000010117d00>] pcibios_register_hba+0x70/0xc8
 [<00000000104a3b18>] lba_common_init+0x38/0x68
 [<00000000104a3ce4>] lba_driver_callback+0x19c/0x300
 [<00000000101139b4>] claim_device+0x34/0x48
 [<0000000010113a10>] parisc_driver_probe+0x48/0x90
 [<0000000010280688>] bus_match+0x70/0xb8
 [<0000000010280818>] driver_attach+0x98/0xa8
 [<0000000010280b68>] bus_add_driver+0xd8/0xf0
 [<0000000010112b70>] pdc_pat_get_irt+0x48/0x68
 [<0000000010281098>] driver_register+0x48/0x60
 [<0000000010113c28>] register_parisc_driver+0x158/0x170
 [<00000000104a3e6c>] lba_init+0x24/0x38
 [<00000000104965f4>] parisc_init+0x114/0x130
 [<000000001049096c>] do_initcalls+0x84/0x120
 [<0000000010490a50>] do_basic_setup+0x48/0x78
 [<00000000101003b8>] init+0x38/0x238
 [<000000001010947c>] ret_from_kernel_thread+0x24/0x38

lba range[2] : ignoring GMMIO (0xfffffff904000000)
---

c.



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Subject: Re: [parisc-linux] 2.6.0-test1-pa1, fails, to, boot, on, rp2430
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On Wed, Jul 16, 2003 at 08:15:28PM -0400, Carlos O'Donell wrote:
> Linux version 2.6.0-test1-pa0 (tausq@ios) (gcc version 3.0.4) #112 Tue Jul 15 22:35:45 PDT 2003

try updating to -pa1 ... the misplaced BUG() is gone.

-- 
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victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Kernel 2.6.0-test1-pa1 64bits failled to compile
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> and the workaround for this for now is to disable CONFIG_KALLSYMS. I
> sent Dave a patch to review to fix this problem last night. let's see
> how that goes.

I will try to get to it as soon as I can.  At the moment, I am working
14 hours a day on firmware for a local company.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> um, the stack continues to grow up.  it's just a question of where the
> stack starts at.  before, it was at top of memory - stack limit, now it's
> at task_unmapped_base and mmaps grow down from the top of memory.

Ok I missunderstood.

This said, I applied against 2.6.0-test1-pa1. It compiled well and also boot
well on my b180 of test (still have a pb with b2k and N; another story).

I also try to re-compile kernel 2.6 reboot with this last one: all seems
ok.

hth,
    Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:18963

Hi pa,

>My rp2430 has yet to boot into a usable userspace, it always dies at
>some point after serial console setup.

I also encounter a similar pb with my b2k (with 2.6.0-test1-pa1 _32bits_
compiled).
It start to boot:
Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
palo_kernel=3/vmlinux-2.6.0-test1-pa1'
Selected kernel: /vmlinux-2.6.0-test1-pa1 from partition 3
ELF32 executable
Entry 00100260 first 00100000 n 3
Segment 0 load 00100000 size 2526736 mediaptr 0x1000
Segment 1 load 0036a000 size 389364 mediaptr 0x26a000
Segment 2 load 003cc000 size 516223 mediaptr 0x2ca000
Branching to kernel entry point 0x00100260.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.0-test1-pa1 (root@palx2000) (gcc version 3.3.1 20030626
(Debian prerelease)) #1 Wed Jul 16 16:09:48 CEST 2003
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005d00 00000481 00000000 00000002 77e93910 100000f0 00000008 000000b2
000000b2
vers  00000301
CPUID vers 17 rev 11 (0x0000022b)
capabilities 0x3
model 9000/785/B2000
Total Memory: 256 Mb
pagetable_init
On node 0 totalpages: 65536
  DMA zone: 65536 pages, LIFO batch:16
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Building zonelist for node : 0
Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=3/vmlinux-2.6.0-test1-pa1
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Calibrating delay loop... 799.53 BogoMIPS
Memory: 255656k available
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
-> /dev
-> /dev/console
-> /root
POSIX conformance testing by UNIFIX
Initializing RT netlink socket
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000 [10], versions 0x582, 0x0, 0xb
2. Elroy PCI Bridge (13) at 0xfed30000 [10/0], versions 0x782, 0x0, 0xa
3. Elroy PCI Bridge (13) at 0xfed32000 [10/1], versions 0x782, 0x0, 0xa
4. Kazoo W+ (0) at 0xfffa0000 [32], versions 0x5d0, 0x0, 0x4
5. Memory (1) at 0xfed10200 [49], versions 0x9d, 0x0, 0x9
CPU(s): 1 x PA8600 (PCX-W+) at 400.000000 MHz
SBA found Astro 2.1 at 0xfed00000
lba version TR4.0 (0x5) found at 0xfed30000
PCI: Ignoring BAR0-3 of IDE controller 0000:00:0e.0
lba version TR4.0 (0x5) found at 0xfed32000
BIO: pool of 256 setup, 14Kb (56 bytes/bio)
biovec pool[0]:   1 bvecs: 256 entries (12 bytes)
biovec pool[1]:   4 bvecs: 256 entries (48 bytes)
biovec pool[2]:  16 bvecs: 256 entries (192 bytes)
biovec pool[3]:  64 bvecs: 256 entries (768 bytes)
biovec pool[4]: 128 bvecs: 256 entries (1536 bytes)
biovec pool[5]: 256 bvecs: 256 entries (3072 bytes)
SCSI subsystem initialized
drivers/usb/core/usb.c: registered new driver hub
pty: 256 Unix98 ptys configured
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing enabled
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 64) 
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
parport0: PC-style at 0x378, irq 101 [PCSPP(,...)]
ttyS0 at I/O 0x3f8 (irq = 99) is a 16550A
ttyS1 at I/O 0x2f8 (irq = 100) is a 16550A
Soft power switch enabled, polling @ 0xf0400804.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.07
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
airo:  Probing for PCI adapters
airo:  Finished probing for PCI adapters
Linux Tulip driver version 1.1.13 (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 65 at 0xf00, 00:30:D3:01:5A:3B, IRQ 66.
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.
eth1: Digital DS21143 Tulip rev 65 at 0x12100, 00:30:6E:06:23:D0, IRQ 130.
sym0: <875> rev 0x26 on pci bus 1 device 3 function 0 irq 131
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
sym1: <895a> rev 0x1 on pci bus 0 device 15 function 0 irq 65
sym1: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi0 : sym-2.1.16a
anticipatory scheduling elevator
scsi1 : sym-2.1.16a
  Vendor: QUANTUM   Model: ATLAS5-9LVD       Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym1:5:0: tagged command queuing enabled, command queue depth 16.
  Vendor: SEAGATE   Model: ST336704LC        Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym1:6:0: tagged command queuing enabled, command queue depth 16.
st: Version 20030622, fixed bufsize 32768, s/g segs 256
sym1:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25.0 ns, offset 31)
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 >
Attached scsi disk sda at scsi1, channel 0, id 5, lun 0
sym1:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25.0 ns, offset 31)
SCSI device sdb: 71132960 512-byte hdwr sectors (36420 MB)
SCSI device sdb: drive cache: write through
 sdb: sdb1
Attached scsi disk sdb at scsi1, channel 0, id 6, lun 0
Attached scsi generic sg0 at scsi1, channel 0, id 5, lun 0,  type 0
Attached scsi generic sg1 at scsi1, channel 0, id 6, lun 0,  type 0
STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f4940000 (128 kB), fb at fb000000 (16 MB)
STI word mode ROM at f4940044, hpa at fb000000
STI id 35acda16-9a02587, conforms to spec rev. 8.0c
STI device: HPA4982A
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
ohci-hcd 0000:00:0e.2: National Semiconduct USB Controller
ohci-hcd 0000:00:0e.2: irq 97, pci mem f4004000
ohci-hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
ohci-hcd 0000:00:0e.2: Using NSC SuperIO setup
usb usb1: Product: National Semiconduct USB Controller
usb usb1: Manufacturer: Linux 2.6.0-test1-pa1 ohci-hcd
usb usb1: SerialNumber: 0000:00:0e.2
hub 1-0:0: USB hub found
hub 1-0:0: 3 ports detected
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :   913.200 MB/sec
   8regs_prefetch:   932.000 MB/sec
   32regs    :   877.200 MB/sec
   32regs_prefetch:   867.200 MB/sec
raid5: using function: 8regs_prefetch (932.000 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
oprofile: using timer interrupt.
NET4: Linux TCP/IP 1.0 for NET4.0
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 16384 bind 32768)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 508k freed
Adding 250872k swap on /dev/sda2.  Priority:-1 extents:1

Here it hangs. (just in case, i tried a telnet but no success)

I so do a toc.

Unfortunately the IAOQ = 0x00000000000172b8  is not a relevant value?

On the other hand when I reboot with a working 2.4 kernel I noticed that
only some fs were already mounted during the boot with 2.6:
[...]
Freeing unused kernel memory: 242k freed
INIT: version 2.85 booLoading /etc/console/boottime.kmap.gz
Activating swap.
Adding Swap: 250872k swap-space (priority -1)
Checking root file system...
fsck 1.34-WIP (21-May-2003)
/dev/sda5 was not cleanly unmounted, check forced.
/dev/sda5: [...=======================| 100.0%
/dev/sda5: 54062/203008 files (2.7% non-contiguous), 256055/406012 blocks
modprobe: modprobe: Can't locate module char-major-10-135
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access method.
System time was Thu Jul 17 14:52:05 UTC 2003.
Setting the System Clock using the Hardware Clock as reference...
modprobe: modprobe: Can't locate module char-major-10-135
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access method.
modprobe: modprobe: Can't locate module char-major-10-135
System Clock set. System local time is now Thu Jul 17 14:52:05 UTC 2003.
Calculating module dependencies... done.
Loading modules: 
Checking all file systems...
fsck 1.34-WIP (21-May-2003)
/dev/sda3 was not cleanly unmounted, check forced.
/dev/sda3: [...]======================| 100.0%
/dev/sda3: 28/15616 files (35.7% non-contiguous), 31760/62464 blocks
/dev/sda6 was not cleanly unmounted, check forced.
/dev/sda6: [...]======================| 100.0%
/dev/sda6: 5112/62496 files (4.6% non-contiguous), 114738/249840 blocks
/dev/sda7 was not cleanly unmounted, check forced.
/dev/sda7: [...]======================| 100.0%
/dev/sda7: 14/31232 files (0.0% non-contiguous), 3965/124912 blocks
/dev/sda8: clean, 132/31232 files, 11041/124912 blocks
/dev/sda9: clean, 109247/250368 files, 465650/499964 blocks
/dev/sda10: clean, 5352/250368 files, 429756/499964 blocks
/dev/sda11: clean, 47353/250368 files, 239067/499964 blocks
[...]

[sda5==/; sda3==/boot; sda6==/var; sda7==/tmp; sda8==/home; sda9==/usr/src;...]

hth,
    Joel


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From - Thu Nov 08 21:28:28 2018
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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] 2.6.0-test1-pa1, fails, to, boot, on, rp2430
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To: Joel Soete <jsoe0708@tiscali.be>
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> Freeing unused kernel memory: 508k freed
> Adding 250872k swap on /dev/sda2.  Priority:-1 extents:1
> 
> Here it hangs. (just in case, i tried a telnet but no success)
> 
> I so do a toc.
> 
> Unfortunately the IAOQ = 0x00000000000172b8  is not a relevant value?

looks like a userspace address....

can you boot the kernel with init=/bin/sh and see what happens? can you
disable your swap partition (comment it out of /etc/fstab) and see what
happens?

thx
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] 2.6.0-test1-pa1, fails, to, boot, on, rp2430
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On Thu, 2003-07-17 at 11:52, Randolph Chung wrote:
> > Freeing unused kernel memory: 508k freed
> > Adding 250872k swap on /dev/sda2.  Priority:-1 extents:1
> > 
> > Here it hangs. (just in case, i tried a telnet but no success)
> > 
> > I so do a toc.
> > 
> > Unfortunately the IAOQ = 0x00000000000172b8  is not a relevant value?
> 
> looks like a userspace address....

Actually, I think it's an address in a module.  If it were from
userspace, it would have the bottom two bits set.

Unfortunately, I don't seem to have the email you're replying to, so I
can't tell if that's true or not.  If we could get the 64 bit compile to
do kallsyms, that would tell you definitively.

James




From - Thu Nov 08 21:28:28 2018
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Subject: Re: [parisc-linux] 2.6.0-test1-pa1, fails, to, boot, on, rp2430
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> > looks like a userspace address....
> 
> Actually, I think it's an address in a module.  If it were from
> userspace, it would have the bottom two bits set.
> 
> Unfortunately, I don't seem to have the email you're replying to, so I
> can't tell if that's true or not.  If we could get the 64 bit compile to
> do kallsyms, that would tell you definitively.

you can't really do that here because he's getting the address from TOC
output from PDC...

but to rule this out, joel, can you recompile your kernel without
modules (everything builtin) and see what happens?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi Randolph,

> but to rule this out, joel, can you recompile your kernel without
> modules (everything builtin) and see what happens?

It is :(

(for those first test I build it with make defconfig and just change sym1
to sym2 which works fine on my b180. And so I just check to be sure # CONFIG_MODULES
is not set)

Joel

ps: I am on going to test init=/bin/fs... 

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Subject: Re: [parisc-linux] 2.6.0-test1-pa1, fails, to, boot, on, rp2430
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Hello Randolph,
>> 
>> > Freeing unused kernel memory: 508k freed
>> Adding 250872k swap on /dev/sda2.  Priority:-1 extents:1
>> 
>> Here it hangs. (just in case, i tried a telnet but no success)
>> 
>> I so do a toc.
>> 
>> Unfortunately the IAOQ = 0x00000000000172b8  is no
>>  a relevant value?
>
>looks like a userspace address....
>
>can you boot the kernel with init=/bin/sh and see what happens?

Well here it hangs at "Freeing unused kernel memory: 508k freed" but do not
mount anything else (still clean when rebooted with 2.4)

> can you
>disable your swap partition (comment it out of /etc/fstab) and see what
>happens?

Same results (even if I used the 2 tips together and even with -s for su
mode)

[and always the same IAOQ after TOC]

mm would it help if tomorrow I re-compile it in 64bits and disable CONFIG_KALLSYMS?

Joel


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Subject: [parisc-linux] arch/parisc/kernel/perf_asm.o not building
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My first post 8)

2.6-bk (i.e. latest linus tree in master.kernel.org), using the
xc-20020118.tar.bz2 cross compiler (latest):

[acme@oops parisc-2.5]$ hppa-linux-gcc -v
Reading specs from /home/opt/palinux/bin/../lib/gcc-lib/hppa-linux/3.0.3/=
specs
Configured with: /home/al76/puffin/palinux/gcc/configure --target=3Dhppa-=
linux --host=3Di386-linux --build=3Di386-linux --prefix=3D/opt/palinux --=
disable-shared --disable-nls --with-libc --with-libs=3D/opt/palinux/lib
Thread model: single
gcc version 3.0.3

make[1]: `arch/parisc/kernel/asm-offsets.s' est=E1 atualizado.
  CHK     include/linux/compile.h
  AS      arch/parisc/kernel/perf_asm.o
arch/parisc/kernel/perf_asm.S: Assembler messages:
arch/parisc/kernel/perf_asm.S:42: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:54: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:68: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:71: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:119: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:135: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:152: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:176: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:272: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:284: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:320: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:356: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:368: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:464: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:476: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:512: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:535: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:574: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:969: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1015: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1031: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1044: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1053: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1125: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1134: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1143: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1152: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1161: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1170: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1179: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1197: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1206: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1278: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1287: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1314: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1323: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1331: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1372: Error: Invalid operands=20
arch/parisc/kernel/perf_asm.S:1675: Error: Invalid operands=20
make[1]: ** [arch/parisc/kernel/perf_asm.o] Erro 1
make: ** [arch/parisc/kernel] Erro 2


#
# Automatically generated make config: don't edit
#
CONFIG_PARISC=3Dy
CONFIG_MMU=3Dy
CONFIG_STACK_GROWSUP=3Dy
CONFIG_RWSEM_GENERIC_SPINLOCK=3Dy

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=3Dy

#
# General setup
#
CONFIG_SWAP=3Dy
CONFIG_SYSVIPC=3Dy
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=3Dy
CONFIG_LOG_BUF_SHIFT=3D15
# CONFIG_EMBEDDED is not set
CONFIG_KALLSYMS=3Dy
CONFIG_FUTEX=3Dy
CONFIG_EPOLL=3Dy

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
CONFIG_PA8X00=3Dy
CONFIG_PA20=3Dy
CONFIG_PARISC64=3Dy
# CONFIG_PDC_NARROW is not set
# CONFIG_SMP is not set
# CONFIG_PREEMPT is not set
CONFIG_COMPAT=3Dy
# CONFIG_HPUX is not set

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
# CONFIG_GSC is not set
CONFIG_PCI=3Dy
CONFIG_PCI_LEGACY_PROC=3Dy
CONFIG_PCI_NAMES=3Dy
CONFIG_PCI_LBA=3Dy
CONFIG_IOSAPIC=3Dy
CONFIG_IOMMU_SBA=3Dy
# CONFIG_SUPERIO is not set
# CONFIG_CHASSIS_LCD_LED is not set
CONFIG_HOTPLUG=3Dy

#
# PCMCIA/CardBus support
#
CONFIG_PCMCIA=3Dy
CONFIG_YENTA=3Dy
CONFIG_CARDBUS=3Dy
# CONFIG_I82092 is not set
# CONFIG_TCIC is not set

#
# PCI Hotplug Support
#
# CONFIG_HOTPLUG_PCI is not set

#
# Executable file formats
#
CONFIG_KCORE_ELF=3Dy
CONFIG_BINFMT_ELF=3Dy
# CONFIG_BINFMT_MISC is not set

#
# Generic Driver Options
#
# CONFIG_FW_LOADER is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
CONFIG_BLK_DEV_LOOP=3Dy
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set

#
# ATA/ATAPI/MFM/RLL support
#
# CONFIG_IDE is not set

#
# SCSI device support
#
# CONFIG_SCSI is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set

#
# Networking support
#
CONFIG_NET=3Dy

#
# Networking options
#
CONFIG_PACKET=3Dy
CONFIG_PACKET_MMAP=3Dy
CONFIG_NETLINK_DEV=3Dy
# CONFIG_NETFILTER is not set
CONFIG_UNIX=3Dy
# CONFIG_NET_KEY is not set
CONFIG_INET=3Dy
CONFIG_IP_MULTICAST=3Dy
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=3Dy
# CONFIG_IP_PNP_DHCP is not set
CONFIG_IP_PNP_BOOTP=3Dy
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_IPV6 is not set
# CONFIG_XFRM_USER is not set

#
# SCTP Configuration (EXPERIMENTAL)
#
CONFIG_IPV6_SCTP__=3Dy
# CONFIG_IP_SCTP is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_LLC is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
CONFIG_NETDEVICES=3Dy

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=3Dy
# CONFIG_MII is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set

#
# Tulip family network device support
#
CONFIG_NET_TULIP=3Dy
# CONFIG_DE2104X is not set
CONFIG_TULIP=3Dy
# CONFIG_TULIP_MWI is not set
# CONFIG_TULIP_MMIO is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_PCMCIA_XIRCOM is not set
# CONFIG_PCMCIA_XIRTULIP is not set
# CONFIG_HP100 is not set
# CONFIG_NET_PCI is not set

#
# Ethernet (1000 Mbit)
#
CONFIG_ACENIC=3Dy
# CONFIG_ACENIC_OMIT_TIGON_I is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_R8169 is not set
# CONFIG_SK98LIN is not set
# CONFIG_TIGON3 is not set

#
# Ethernet (10000 Mbit)
#
# CONFIG_IXGB is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
CONFIG_NET_RADIO=3Dy

#
# Obsolete Wireless cards support (pre-802.11)
#
# CONFIG_STRIP is not set
# CONFIG_PCMCIA_WAVELAN is not set
# CONFIG_PCMCIA_NETWAVE is not set

#
# Wireless 802.11 Frequency Hopping cards support
#
# CONFIG_PCMCIA_RAYCS is not set

#
# Wireless 802.11b ISA/PCI cards support
#
# CONFIG_AIRO is not set
# CONFIG_HERMES is not set

#
# Wireless 802.11b Pcmcia/Cardbus cards support
#
# CONFIG_AIRO_CS is not set
# CONFIG_PCMCIA_ATMEL is not set
CONFIG_PCMCIA_WL3501=3Dy
CONFIG_NET_WIRELESS=3Dy

#
# Token Ring devices (depends on LLC=3Dy)
#
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# PCMCIA network device support
#
# CONFIG_NET_PCMCIA is not set

#
# IrDA (infrared) support
#
# CONFIG_IRDA is not set

#
# Input device support
#
CONFIG_INPUT=3Dy

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input I/O drivers
#
# CONFIG_GAMEPORT is not set
CONFIG_SOUND_GAMEPORT=3Dy
# CONFIG_SERIO is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Character devices
#
CONFIG_VT=3Dy
CONFIG_VT_CONSOLE=3Dy
CONFIG_HW_CONSOLE=3Dy
# CONFIG_SERIAL_NONSTANDARD is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=3Dy
CONFIG_SERIAL_8250_CONSOLE=3Dy
# CONFIG_SERIAL_8250_CS is not set
CONFIG_SERIAL_8250_EXTENDED=3Dy
CONFIG_SERIAL_8250_MANY_PORTS=3Dy
CONFIG_SERIAL_8250_SHARE_IRQ=3Dy
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_MULTIPORT is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MUX is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=3Dy
CONFIG_SERIAL_CORE_CONSOLE=3Dy
CONFIG_UNIX98_PTYS=3Dy
CONFIG_UNIX98_PTY_COUNT=3D256

#
# I2C support
#
# CONFIG_I2C is not set

#
# I2C Hardware Sensors Mainboard support
#

#
# I2C Hardware Sensors Chip support
#
# CONFIG_I2C_SENSOR is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_QIC02_TAPE is not set

#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_NVRAM is not set
CONFIG_GEN_RTC=3Dy
# CONFIG_GEN_RTC_X is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set

#
# PCMCIA character devices
#
# CONFIG_SYNCLINK_CS is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_HANGCHECK_TIMER is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set

#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_FAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=3Dy
# CONFIG_DEVFS_FS is not set
CONFIG_DEVPTS_FS=3Dy
# CONFIG_DEVPTS_FS_XATTR is not set
# CONFIG_TMPFS is not set
CONFIG_RAMFS=3Dy

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set

#
# Network File Systems
#
CONFIG_NFS_FS=3Dy
CONFIG_NFS_V3=3Dy
# CONFIG_NFS_V4 is not set
# CONFIG_NFSD is not set
CONFIG_ROOT_NFS=3Dy
CONFIG_LOCKD=3Dy
CONFIG_LOCKD_V4=3Dy
# CONFIG_EXPORTFS is not set
CONFIG_SUNRPC=3Dy
# CONFIG_SUNRPC_GSS is not set
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_INTERMEZZO_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=3Dy

#
# Graphics support
#
# CONFIG_FB is not set

#
# Console display driver support
#
# CONFIG_VGA_CONSOLE is not set
# CONFIG_MDA_CONSOLE is not set
# CONFIG_STI_CONSOLE is not set
CONFIG_DUMMY_CONSOLE_COLUMNS=3D160
CONFIG_DUMMY_CONSOLE_ROWS=3D64
CONFIG_DUMMY_CONSOLE=3Dy

#
# Sound
#
# CONFIG_SOUND is not set

#
# USB support
#
# CONFIG_USB is not set
# CONFIG_USB_GADGET is not set

#
# Bluetooth support
#
# CONFIG_BT is not set

#
# Profiling support
#
# CONFIG_PROFILING is not set

#
# Kernel hacking
#
CONFIG_DEBUG_KERNEL=3Dy
# CONFIG_DEBUG_SLAB is not set
CONFIG_MAGIC_SYSRQ=3Dy
# CONFIG_FRAME_POINTER is not set

#
# Security options
#
# CONFIG_SECURITY is not set

#
# Cryptographic options
#
# CONFIG_CRYPTO is not set

#
# Library routines
#
# CONFIG_CRC32 is not set


From - Thu Nov 08 21:28:29 2018
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From: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: arch/parisc/kernel/perf_asm.o not building
Date: Fri, 18 Jul 2003 01:26:06 -0300
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Em Fri, Jul 18, 2003 at 01:14:40AM -0300, Arnaldo C. Melo escreveu:
> My first post 8)

And probably adding more noise to the list :( The problem "magically"
disappeared when I stopped using:

make ARCH=parisc CROSS_COMPILE=hppa-linux-

And started using:

make ARCH=parisc CROSS_COMPILE=hppa64-linux-

:-)

- Arnewbie


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: arch/parisc/kernel/perf_asm.o not building
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> Em Fri, Jul 18, 2003 at 01:14:40AM -0300, Arnaldo C. Melo escreveu:
> > My first post 8)
> 
> And probably adding more noise to the list :( The problem "magically"
> disappeared when I stopped using:
> 
> make ARCH=parisc CROSS_COMPILE=hppa-linux-
> 
> And started using:
> 
> make ARCH=parisc CROSS_COMPILE=hppa64-linux-

It's not magic.  You configured for a 64-bit kernel.

You shouldn't be using gcc 3.0.3.  The generic version doesn't have
have the required configuration features for parisc-linux.  The
first GNU version of GCC which works reasonably well with parisc-linux
is 3.2.  3.3 is the best release for user code but there are still some
issues with respect to building kernels that haven't been fully resolved.
The debian 3.0.4 release is a good choice for kernel builds.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


From - Thu Nov 08 21:28:29 2018
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Subject: [parisc-linux] pdc_console_die: undefined reference to `log_end'
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Second try:

arch/parisc/kernel/built-in.o: In function `pdc_console_die':
arch/parisc/kernel/built-in.o(.text.pdc_console_die+0x4c): undefined reference to `log_end'
arch/parisc/kernel/built-in.o: In function `pdc_console_restart':
arch/parisc/kernel/built-in.o(.text.pdc_console_restart+0x44): undefined reference to `log_end'
make: ** [.tmp_vmlinux1] Erro 139

Problem is:

===== kernel/printk.c 1.26 vs edited =====
--- 1.26/kernel/printk.c	Sat Jun 28 03:20:35 2003
+++ edited/kernel/printk.c	Fri Jul 18 01:29:15 2003
@@ -77,7 +77,7 @@
  */
 static unsigned long log_start;			/* Index into log_buf: next char to be read by syslog() */
 static unsigned long con_start;			/* Index into log_buf: next char to be sent to consoles */
-static unsigned long log_end;			/* Index into log_buf: most-recently-written-char + 1 */
+unsigned long log_end;			/* Index into log_buf: most-recently-written-char + 1 */
 static unsigned long logged_chars;		/* Number of chars produced since last read+clear operation */
 
 struct console_cmdline console_cmdline[MAX_CMDLINECONSOLES];


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Hi pa,

Is it an actual cvs server pb or a local pb I could have:
those last two days cvs -d :pserver:anonymous@cvs.parisc-linux.org:/var/cvs
"failed: Connection timed out"?

Any idea?

Thanks,
    Joel


------------------------------------------------------
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> 2.6-bk (i.e. latest linus tree in master.kernel.org), using the
> xc-20020118.tar.bz2 cross compiler (latest):

This doesn't work as it doesn't have all the necessary parisc-linux
patches.  Use the parisc-linux source.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Hi Lucian,

To be honest, no
All our envizex I & II machines were thrown away (saved one), we only kept
mice, keyboards and displays.
All the ram and flash i sent to someone in Spain.
Certainly it might be considered a waste of resources, but at that time all
of us at work could get a 712/100, and later on C110 and B132 machines. And
these were certainly running linux.

If i remember correctly, it was possible to boot the envizex over the net
from a linux boot-server,
but stil running the enware software (there was an "howto" on that topic,
using enware 7.1 on a redhat tftp machine)

I have no clue if it is NOW possible to run linux of the box itself, (a
couple of years ago not), but perhaps someone on the list has tried it..
Booting from flash would be neat, as it would make a nice and silent machine
for the living room or so,
eventhough it would not break any speed records ;-)) 

Hans

-----Original Message-----
From: Lucian Lacusta [mailto:llucian@yahoo.com]
Sent: vrijdag 18 juli 2003 8:29
To: Hans.Witvliet@Alcatel.nl
Subject: Linux on Envizex II


Hi there!

Sorry to bother, I got your email address from a discussion liston the net,
in which you were
saying 

"It is some time ago, but i remember that I could launch remote shells on a
Envizex. (get/set config, ps and floppy operations)
I hoped that (someday) they could boot linux from flash..."

Did you manage to find any more information on whether is possible to run
Linux on the Envizex II
boxes - for example make them boot from the net or re-flash them?

Thank you!

BR,
Lucian

PS: I got one Envizex II box and I thought I couls play with it a bit... :)

__________________________________
Do you Yahoo!?
SBC Yahoo! DSL - Now only $29.95 per month!
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On Wed, Jul 16, 2003 at 08:36:57PM +0200, Jan Sporbeck wrote:
> Hello again,
> 
> Jan Sporbeck wrote:
> >Hello,
> >
> >I am just wondering if the chassis lcd is supported on 9000/801/D200.
> 
> Doesnot anyone know?
> Is there no one using the lcd on a D-class?

The last time I had Linux installed on a D270, which was last year some
time, the LCD did not work for me either.

-- 
Michael Wood <mwood@its.uct.ac.za>


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On Fri, Jul 18, 2003 at 01:33:00AM -0300, Arnaldo Carvalho de Melo wrote:
> Second try:
> 
> arch/parisc/kernel/built-in.o: In function `pdc_console_die':
> arch/parisc/kernel/built-in.o(.text.pdc_console_die+0x4c): undefined reference to `log_end'
> arch/parisc/kernel/built-in.o: In function `pdc_console_restart':
> arch/parisc/kernel/built-in.o(.text.pdc_console_restart+0x44): undefined reference to `log_end'
> make: ** [.tmp_vmlinux1] Erro 139

You're using Linus' kernel, not ours ;-)  The diff's pretty small these
days and can be found at
http://cvs.parisc-linux.org/download/linux-2.5/patch-2.6.0-test1-pa1.gz

This particular bit is far too ugly to ever go upstream, so if you have any
thoughts on doing it better, please let me know...

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, Jul 18, 2003 at 07:27:43AM +0200, Joel Soete wrote:
> Hi pa,
> 
> Is it an actual cvs server pb or a local pb I could have:
> those last two days cvs -d :pserver:anonymous@cvs.parisc-linux.org:/var/cvs
> "failed: Connection timed out"?

Hm, it's not working for me either:

willy@honeydew:~/kernel/pci-2.5$ cvs up Makefile 
cvs [update aborted]: connect to cvs.parisc-linux.org(192.25.206.14):2401 failed: Connection timed out
willy@honeydew:~/kernel/pci-2.5$ cat CVS/Root 
:pserver:anonymous@cvs.parisc-linux.org:/var/cvs

I think someone must have changed the firewall config because I can
reach port 2401 from localhost, but not from any other machine.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, 18 Jul 2003 01:38:39 -0400 (EDT)
"John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:

> > 2.6-bk (i.e. latest linus tree in master.kernel.org), using the
> > xc-20020118.tar.bz2 cross compiler (latest):
> 
> This doesn't work as it doesn't have all the necessary parisc-linux
> patches.  Use the parisc-linux source.
> 

fyi, there's a 3.0.4 xc for i686 (as well as many other platform) on
pateam:
http://pateam.esiee.fr/download.html


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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> I think someone must have changed the firewall config because I can
> reach port 2401 from localhost, but not from any other machine.

I don't know how that happened, but I reopened the port and anon
CVS should work now.

	-P


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Em Fri, Jul 18, 2003 at 01:26:19PM +0200, Thibaut VARENE escreveu:
> On Fri, 18 Jul 2003 01:38:39 -0400 (EDT)
> "John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:
> 
> > > 2.6-bk (i.e. latest linus tree in master.kernel.org), using the
> > > xc-20020118.tar.bz2 cross compiler (latest):
> > 
> > This doesn't work as it doesn't have all the necessary parisc-linux
> > patches.  Use the parisc-linux source.
> > 
> 
> fyi, there's a 3.0.4 xc for i686 (as well as many other platform) on
> pateam:
> http://pateam.esiee.fr/download.html

Thanks, I'm updating it now, just for the record, another thing I've noticed:

===== drivers/char/vt.c 1.53 vs edited =====
--- 1.53/drivers/char/vt.c	Fri Jun 20 17:16:20 2003
+++ edited/drivers/char/vt.c	Fri Jul 18 12:45:57 2003
@@ -2371,7 +2371,7 @@
 /*
  * Turn the Scroll-Lock LED off when the console is started
  */
-static void con_start(struct tty_struct *tty)
+void con_start(struct tty_struct *tty)
 {
 	int console_num;
 	if (!tty)

Will download the diff Willy pointed out and try again with the new xc.

- Arnaldo


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First patch! :P

This is what the other arches does to provide this ISA stuff, Grant suggested
cleaning the only user of this stuff, that is drivers/pcmcia/yenta_socket.c,
but Willy agreed that as we're on 2.6 times this bandaid is better for the time
being.

Best Regards,

- Arnaldo

===== arch/parisc/kernel/irq.c 1.15 vs edited =====
--- 1.15/arch/parisc/kernel/irq.c	Mon May  5 12:34:24 2003
+++ edited/arch/parisc/kernel/irq.c	Fri Jul 18 13:40:34 2003
@@ -842,6 +842,10 @@
 	return irq_found;
 }
 
+unsigned int probe_irq_mask(unsigned long irqs)
+{
+	return 0;
+}
 
 void __init init_IRQ(void)
 {
===== arch/parisc/kernel/parisc_ksyms.c 1.9 vs edited =====
--- 1.9/arch/parisc/kernel/parisc_ksyms.c	Sun Jun  8 17:24:25 2003
+++ edited/arch/parisc/kernel/parisc_ksyms.c	Fri Jul 18 13:41:37 2003
@@ -37,6 +37,7 @@
 #include <asm/irq.h>
 EXPORT_SYMBOL(enable_irq);
 EXPORT_SYMBOL(disable_irq);
+EXPORT_SYMBOL(probe_irq_mask);
 
 #include <asm/processor.h>
 EXPORT_SYMBOL(kernel_thread);


From - Thu Nov 08 21:28:30 2018
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From: Joel Soete <joel.soete@tiscali.be>
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Subject: [parisc-linux] Re: Xfree-server and Xhp ?
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Joel Soete wrote:

>>>>>     ldo 0x40(sp),sp
>>>>>          
>>>>>
>>^^^^^^^^^^^^^^^^^^^^^^^^^^That was I suspected to be 'som' specific
>>
>>that means a 64-byte stack.. should be fine on palinux as well.
>>    
>>
>
>Ok I will so try like this (after % and other stuff translation) :-)
>
>Thanks again,
>    Joel
>
Just a follow-up to mentioned that it works (*.s compiling). 
Unfortunately I don't think that I never reach to obtain a full Xhp 
server because I still need some functions (2 or 3) which I didn't found 
nowhere (in the src I got; even thought I found one in a hp lib); I am 
so oblige to abandon ( :_( ).

Thanks again for all,
    Joel



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From: wmj <wmjfriend@eyou.com>
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Subject: [parisc-linux] Play KOF 2002 4 Free
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Subject: Re: [parisc-linux] Kernel 2.6.0-test1-pa1 64bits failled to compile
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--TYecfFk8j8mZq+dy
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On Wed, 2003-07-16 18:35:44 +0200, Joel Soete <jsoe0708@tiscali.be>
wrote in message <3F0C24F800000FBF@ocpmta8.freegates.net>:
> Hi all,
>=20
> This today cvs update failled to compile on my N4000-55 with this very sh=
ort
> message:
>=20
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
> make: *** [.tmp_vmlinux1] Error 139
> palx4000:/usr/src/linux-2.6.0-test1-pa1#=20
>=20
> Is there some tips to get more verbose make output?

$ make V=3D1 vmlinux modules

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

--TYecfFk8j8mZq+dy
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Version: GnuPG v1.2.2 (GNU/Linux)

iD8DBQE/GRI6Hb1edYOZ4bsRAmtjAJ9hQ8PI9ME14LKdasTaefLFhgMa6QCgg91D
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=mw9G
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--TYecfFk8j8mZq+dy--


From - Thu Nov 08 21:28:30 2018
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From: =?ISO-8859-15?Q?R=FCdiger_Scholz?= <rscholz@hrzpub.tu-darmstadt.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] Prevent loopback traffic to be shown on the network leds
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Hi,

looking at the Download page from the ESIEE-Team I found the following 
patch from Thibaut. It filters the traffic from/to the loopback device, 
so network led isn't blinking when accessing the loopback device. 
Should'nt it go into CVS?

Rdiger

--------------080307050105090100090206
Content-Type: text/plain;
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Index: linux/arch/parisc/kernel/led.c
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/led.c,v
retrieving revision 1.28
diff -u -p -u -r1.28 led.c
--- linux/arch/parisc/kernel/led.c	29 Sep 2002 15:49:20 -0000	1.28
+++ linux/arch/parisc/kernel/led.c	17 Jan 2003 16:02:56 -0000
@@ -365,10 +365,12 @@ static void led_get_net_stats(int addval
 	 * for reading should be OK */
 	read_lock(&dev_base_lock);
 	for (dev = dev_base; dev != NULL; dev = dev->next) {
-	    if (dev->get_stats) { 
-	        stats = dev->get_stats(dev);
-		rx_total += stats->rx_packets;
-		tx_total += stats->tx_packets;
+	    if (!(dev->flags & IFF_LOOPBACK)) {
+		if (dev->get_stats) {
+		    stats = dev->get_stats(dev);
+		    rx_total += stats->rx_packets;
+		    tx_total += stats->tx_packets;
+		}
 	    }
 	}
 	read_unlock(&dev_base_lock);

--------------080307050105090100090206--



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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] Prevent loopback traffic to be shown on the network leds
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On Sat, Jul 19, 2003 at 01:31:41PM +0200, Rdiger Scholz wrote:
> Hi,
> 
> looking at the Download page from the ESIEE-Team I found the following 
> patch from Thibaut. It filters the traffic from/to the loopback device, 
> so network led isn't blinking when accessing the loopback device. 
> Should'nt it go into CVS?

Seems like a reasonable patch to me.  I'll ask Thibaut about it when
he gets here.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Dara Hazeghi <dhazeghi@yahoo.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] old gcc and gdb in cvs?
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Hi all,

is there a particular reason gcc, gdb, and userspace
are still in toplevel cvs on parisc-linux.org? They
seem a bit out of date at this point, and though
they're not mentioned faq/cvs.html, they're clearly
visible on cvs.parisc-linux.org. Maybe they should be
moved to obsolete?

Dara

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From: Ruediger Scholz <rscholz@hrzpub.tu-darmstadt.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.6.0-test1-pa1 crashes on 715/100
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Hi there!

I tried to run 2.6.0-test1-pa1 on my machine but it crashes right after 
"Freeing unused kernel memory". IAOQ says something bout 
"canonicalize_funcptr_for_compare" so I will give gcc-3.2 a run to see 
how far the kernel will get then.
Greetings,
Ruediger

--------------050503030805080500070407
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----------------------------------------------------------------------------
BootRom Version    1.6  
Memory Size:  128 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.
----------------------------------------------------------------------------
Command                                Description
-------                                -----------
Auto [boot|search] [on|off]            Set/show auto mode
Boot [pri|alt [isl]]                   Boot from primary or alternate path
Boot [scsi|eisa.<slot>[.<addr>]] [isl] Boot from SCSI or EISA
Boot lan[.<addr>] [install] [isl]      Boot from LAN
Chassis [on|off]                       Set/show chassis codes display mode
DefaultSS                              Reboot and set EEPROM to default values
Diagnostic [on|off]                    Set/show diagnostic boot mode
Fastboot [on|off]                      Set/show fast boot mode
Help                                   Show this command menu
Information                            Show system information
LanAddress                             Show LAN station addresses
Monitor [<DEV>[.<type>]]               Set/show graphics monitor type
                                       (<DEV>=graphics|graphics_<1|2>)
Path [pri|alt [<DEV>[.<addr>]]]        Set/show boot source path
                                       (<DEV>=lan|scsi|eisa.<slot>)
Path [console [<DEV>[.<parm>]]]        Set/show boot console path
                                       (<DEV>=<RS232>|<GRAPH>
                                        <RS232>=rs232|rs232_2
                                        <parm>=<baud>.<length>.<parity>
                                        <GRAPH>=graphics|graphics_<1|2>
                                        <parm>=<monitor>)
Path [keyboard [hil|ps2]]              Set/show boot keyboard path
Pim [hpmc|toc|lpmc]                    Show PIM info
Search [ipl] [scsi|eisa]               Show potential boot devices
Search [ipl] [lan [install]]           Show potential boot LAN devices
Secure [on|off]                        Set/show security mode
----------------------------------------------------------------------------
BOOT_ADMIN> bo pri ipl





Attempting to boot.

Loading Initial Program Loader


IPL successfully loaded


Booting
palo ipl 1.2 root@b2000 Tue Jan 14 13:13:07 MST 2003


Partition Start(MB) End(MB) Id Type


1               1      22   f0 Palo


2              23      64   83 ext2


3              65     194   82 swap


4             195    2046   83 ext2



PALO(F0) partition contains:

    0/vmlinux32 3223985 bytes @ 0x48000


Information: No console specified on kernel command line. This is normal.

PALO will choose the console currently used by firmware (serial).Current command line:

2/vmlinux root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102

 0: 2/vmlinux

 1: root=/dev/sda4

 2: HOME=/

 3: devfs=mount

 4: console=ttyS0

 5: TERM=vt102


Edit which field?

(or 'b' to boot with this command line)? 0

2/vmlinux-2.6.0-test1-pa1

Current command line:

2/vmlinux-2.6.0-test1-pa1 root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102

 0: 2/vmlinux-2.6.0-test1-pa1

 1: root=/dev/sda4

 2: HOME=/

 3: devfs=mount

 4: console=ttyS0

 5: TERM=vt102


Edit which field?

(or 'b' to boot with this command line)? 0 b


Command line for kernel: 'root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.0-test1-pa1'

Selected kernel: /vmlinux-2.6.0-test1-pa1 from partition 2

ELF32 executable

Entry 00100000 first 00100000 n 3

Segment 0 load 00100000 size 2266045 mediaptr 0x1000

Segment 1 load 0032a000 size 409816 mediaptr 0x22b000

Segment 2 load 00390000 size 532608 mediaptr 0x290000

Branching to kernel entry point 0x00100000.  If this is the last

message you see, you may need to switch your console.  This is

a common symptom -- search the FAQ and mailing list at parisc-linux.org


Linux version 2.6.0-test1-pa1 (ruediger@gandalf) (gcc version 3.2.3 20030415 (Debian prerelease)) #1 Fri Jul 18 21:58:57 CEST 2003
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 000060b0 00000481 00000000 00000000 77b661a7 00000000 00000004 00000072 00000072
vers  0000000b
model 9000/715
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
  DMA zone: 32768 pages, LIFO batch:8
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Building zonelist for node : 0
Kernel command line: root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.0-test1-pa1
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Calibrating delay loop... 99.73 BogoMIPS
Memory: 126192k available
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
-> /dev
-> /dev/console
-> /root
POSIX conformance testing by UNIFIX
Initializing RT netlink socket
EISA bus registered
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf4000000 [0], versions 0x4, 0x0, 0x77
2. Mirage GSC Builtin Graphics (10) at 0xf8000000 [1], versions 0x13, 0x0, 0x85
3. Mirage Core BA (11) at 0xf0100000 [2], versions 0x29, 0x0, 0x81
4. Mirage Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x29, 0x0, 0x82
5. Mirage Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x29, 0x0, 0x8a
6. Mirage Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x29, 0x0, 0x8c
7. Mirage Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x29, 0x0, 0x74
8. Mirage Audio (10) at 0xf0104000 [2/0/8], versions 0x29, 0x0, 0x7b
9. Mirage Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x29, 0x0, 0x83
10. Mirage Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x29, 0x0, 0x84
11. Mirage Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x29, 0x0, 0x84
12. Mirage Wax BA (11) at 0xf0200000 [5], versions 0x13, 0x0, 0x8e
13. Mirage 100 Wax HIL (10) at 0xf0201000 [5/0/1], versions 0x13, 0x0, 0x73
14. Mirage Wax RS-232 (10) at 0xf0202000 [5/0/2], versions 0x13, 0x0, 0x8c
15. Mirage 100 (0) at 0xfffbe000 [8], versions 0x60b, 0x0, 0x4
16. Memory (1) at 0xfffbf000 [9], versions 0x4b, 0x0, 0x9
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
Lasi version 0 at 0xf0100000 found.
LED display at f00e0000 registered
Wax at 0xf0200000 found.
BIO: pool of 256 setup, 14Kb (56 bytes/bio)
biovec pool[0]:   1 bvecs: 244 entries (12 bytes)
biovec pool[1]:   4 bvecs: 244 entries (48 bytes)
biovec pool[2]:  16 bvecs: 244 entries (192 bytes)
biovec pool[3]:  64 bvecs: 244 entries (768 bytes)
biovec pool[4]: 128 bvecs: 122 entries (1536 bytes)
biovec pool[5]: 256 bvecs:  61 entries (3072 bytes)
SCSI subsystem initialized
pty: 256 Unix98 ptys configured
Journalled Block Device driver loaded
devfs: v1.22 (20021013) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing enabled
Gecko-style soft power switch enabled.
lp: driver loaded but no devices found
Generic RTC Driver v1.07
ttyS0 at MMIO 0xf0105800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xf0202800 (irq = 121) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 7A DC 08 IRQ 87.
82596.c $Revision: 1.29 $
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2
scsi0 : LASI SCSI 53c700
anticipatory scheduling elevator
scsi0: (2:0) Synchronous at offset 8, period 100ns
  Vendor: PLEXTOR   Model: CD-ROM PX-20TS    Rev: 1.01
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi0: (3:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST32430N          Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
st: Version 20030622, fixed bufsize 32768, s/g segs 256
scsi0: (3:0) Enabling Tag Command Queuing
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
SCSI device sda: drive cache: none
 /dev/scsi/host0/bus0/target3/lun0: p1 p2 p3 p4
Attached scsi disk sda at scsi0, channel 0, id 3, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.12
Attached scsi generic sg0 at scsi0, channel 0, id 2, lun 0,  type 5
Attached scsi generic sg1 at scsi0, channel 0, id 3, lun 0,  type 0
STI GSC/PCI core graphics driver Version 0.9a
STI byte mode ROM at f4000000, hpa at f4000000
STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071A
STI word mode ROM at f0024000, hpa at f8000000
STI id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1024
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
mice: PS/2 mouse device common for all mice
Keyboard initialization sequence failled
input: PS/2 keyboard port at 0xf0108000 (irq 69) found and attached
input: PS/2 mouse port at 0xf0108100 (irq 69) found and attached
NET4: Linux TCP/IP 1.0 for NET4.0
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 524k freed

Stack Dump:
 10590598:  10590598 10343200 17f22200 00000001
 10590588:  10030110 17eef620 0900deee 0900deee
 10590578:  1033f000 10597980 10419810 00027774
 10590568:  00000000 00000008 00000001 1032c810
 10590558:  10419810 10342810 10419e44 10590200
 10590548:  0000000f 00000000 00027550 0000000f
 10590538:  00000010 00000010 00000000 1010631c
 10590528:  0000000f 00000148 103f7bcc 10590488
 10590518:  00000008 10343124 00000201 00000001
 10590508:  10343468 10343010 00000010 faf00810
 105904f8:  0000005f 00000010 00000010 00000050
 105904e8:  00000010 00000010 00000001 10419e44
 105904d8:  17eef620 00027550 1032a010 0000000e
 105904c8:  105b6534 103f7b40 10590480 0000005f
 105904b8:  00000010 00000010 00000050 10121658
 105904a8:  0000000f 00000148 103f7bcc 10590408
 10590498:  00000000 10343448 17eef620 0000000f
 10590488:  10030110 10343124 00000000 00000000
 10590478:  17fd0000 17ee7200 17ee7200 101b0b8c
 10590468:  17ed966c 10590210 10590108 17ed9600
 10590458:  17ed9600 10404260 00000000 17ee7340
 10590448:  00000000 17ee7340 100837a0 17eef668
 10590438:  103f7bcc 103f7bcc 10590414 1010a088
 10590428:  10121e1c 10597670 00000000 00000001
 10590418:  10590414 10590414 10121e1c 10590388
 10590408:  00000000 10587348 105881d0 00000000
 105903f8:  00000000 17f3e060 17ee7340 1013a4f0
 105903e8:  17f3e0cc 10590210 10590108 00000000
 105903d8:  1033f000 10590210 00027550 00000000
 105903c8:  0c601094 0000000d 105900d4 1044c730
 105903b8:  00000000 40181838 10401604 101e650c
 105903a8:  101e6508 00000000 00000000 00000000
 10590398:  00000000 00000000 00000000 00000001
 10590388:  00000000 00000001 00000001 00000000
 10590378:  00000000 10590108 00000003 101b0a64
 10590368:  00000006 00000000 00000000 00000000
 10590358:  05b6719b 00000000 00000002 00000000
 10590348:  10590108 17eef820 17ee6420 10343124
 10590338:  000014f4 000006fc 00000df8 101567a4
 10590328:  00000000 00000001 00000001 f0000704
 10590318:  f000b858 00000002 0000000f 10340810
 10590308:  ffffe836 10340810 0000000f 00000000
 105902f8:  10590140 00000064 10390000 00000000
 105902e8:  00000002 00000000 00000002 10419e44
 105902d8:  10342810 00000000 00000002 00000000
 105902c8:  00000002 00000002 1033b020 f0000704
 105902b8:  00000001 00000001 00000000 1016955c
 105902a8:  1032c810 10419810 10342810 00000000
 10590298:  00000000 00000000 00000000 00000000
 10590288:  00000000 00000000 00000000 40061097
 10590278:  10590200 00000400 00000000 1032a010
 10590268:  00027552 00000400 00000000 00000400
 10590258:  00000000 101e64d8 00027552 1032a010
 10590248:  0900deee 1033f000 10597670 10419810
 10590238:  00027774 00000000 105900d4 00000001
 10590228:  1033f000 00026f74 105b6540 105900c8
 10590218:  105b6534 0000000e 1032a010 00027550
 10590208:  10130070 10383010 0006000e f0000704
 105901f8:  00000001 10597670 00000000 10166bb8
 105901e8:  00000004 faf002c8 1032a010 0000000c
 105901d8:  00000000 ffffffe0 10597670 00000040
 105901c8:  105b6854 0000000d 00000000 10419810
 105901b8:  10597670 1033f000 0900deee 10130070
 105901a8:  00020002 00000000 00020002 faf00350

Kernel addresses on the stack:
 [<10234de8>] scsi_request_fn+0x54/0x2ec
 [<10106074>] parisc_terminate+0x5c/0xa8
 [<1010631c>] handle_interruption+0x25c/0x56c
 [<10121658>] io_schedule+0x3c/0x68
 [<101b0b8c>] new_devfs_lookup_struct+0x18/0x50
 [<1010a088>] intr_check_sig+0x0/0xc
 [<1013a4f0>] filemap_nopage+0x2b4/0x3cc
 [<101e650c>] __canonicalize_funcptr_for_compare+0x34/0x128
 [<101b0a64>] devfs_open+0xa4/0xd4
 [<101567a4>] dentry_open+0x12c/0x1b0
 [<1016955c>] locate_fd+0x120/0x15c
 [<10166bb8>] open_namei+0xac/0x4b8
 [<10130070>] do_sigaction+0xf0/0x28c
 [<10106210>] handle_interruption+0x150/0x56c
 [<10130568>] sys_rt_sigaction+0x80/0xb4
 [<1010afe8>] syscall_exit+0x0/0x28
 [<1010a088>] intr_check_sig+0x0/0xc


Kernel Fault: Code=15 regs=10590200 (Addr=00027550)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001110 Not tainted
r00-03  00000000 10383010 10130070 00027550
r04-07  1032a010 0000000e 105b6534 105900c8
r08-11  105b6540 00026f74 1033f000 00000001
r12-15  105900d4 00000000 00027774 10419810
r16-19  10597670 1033f000 0900deee 1032a010
r20-23  00027552 101e64d8 00000000 00000400
r24-27  00000000 00000400 00027552 1032a010
r28-31  00000000 00000400 10590200 40061097
sr0-3   00000001 00000001 00000000 00000001
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101e6508 101e650c
 IIR: 0c601094    ISR: 00000000  IOR: 00027550
 CPU:        0   CR30: 10590000 CR31: 10386000
 ORIG_R28: 00000000
 IAOQ[0]: __canonicalize_funcptr_for_compare+0x30/0x128
 IAOQ[1]: __canonicalize_funcptr_for_compare+0x34/0x128
 RP(r2): do_sigaction+0xf0/0x28c


--------------050503030805080500070407--



From - Thu Nov 08 21:28:31 2018
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Subject: Re: [parisc-linux] 2.6.0-test1-pa1 crashes on 715/100
Date: Sat, 19 Jul 2003 16:12:52 -0400 (EDT)
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> I tried to run 2.6.0-test1-pa1 on my machine but it crashes right after 
> "Freeing unused kernel memory". IAOQ says something bout 
> "canonicalize_funcptr_for_compare" so I will give gcc-3.2 a run to see 
> how far the kernel will get then.

Check the list for a kernel patch to avoid this.  The 3.2 branch has
canonicalize_funcptr_for_compare.  Debian 3.0.4 doesn't.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] 2.6.0-test1-pa1 crashes on 715/100
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John David Anglin schrieb:

>Check the list for a kernel patch to avoid this.  The 3.2 branch has
>canonicalize_funcptr_for_compare.  Debian 3.0.4 doesn't.
>
But it was accidently compiled with gcc-3.3.1. Is this kernelpatch also 
for gcc-3.3?

>
>Dave
>  
>




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Subject: Re: [parisc-linux] 2.6.0-test1-pa1 crashes on 715/100
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Xref: news.gmane.org gmane.linux.ports.parisc:18995

> >Check the list for a kernel patch to avoid this.  The 3.2 branch has
> >canonicalize_funcptr_for_compare.  Debian 3.0.4 doesn't.
> >
> But it was accidently compiled with gcc-3.3.1. Is this kernelpatch also 
> for gcc-3.3?

All hppa-linux versions from 3.2 on have canonicalize_funcptr_for_compare.
This fixes the comparison of function pointers in user space.  However,
the version of canonicalize_funcptr_for_compare in libgcc.a isn't suitable
for the kernel.

This arises because function pointers are implemented using pointers
to non-unique function descriptors.  -1 to 4095 are also special.
This is allowed in the C standard but the current kernel code doesn't
take this into account when comparing function pointers.  The only
other linux port to use function descriptors is ia64 and I believe
that its function pointers are unique, so no special code is needed
to resolve the pointers.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] Kernel 2.6.0-test1-pa1 64bits failled to compile
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Jan-Benedict Glaw wrote:

>On Wed, 2003-07-16 18:35:44 +0200, Joel Soete <jsoe0708@tiscali.be>
>wrote in message <3F0C24F800000FBF@ocpmta8.freegates.net>:
>  
>
>>Hi all,
>>
>>This today cvs update failled to compile on my N4000-55 with this very short
>>message:
>>
>>  LD      init/built-in.o
>>  LD      .tmp_vmlinux1
>>make: *** [.tmp_vmlinux1] Error 139
>>palx4000:/usr/src/linux-2.6.0-test1-pa1# 
>>
>>Is there some tips to get more verbose make output?
>>    
>>
>
>$ make V=1 vmlinux modules
>
>MfG, JBG
>
>  
>
thanks a lot,
    Joel



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Subject: [parisc-linux] [PATCH] getting a working kernel-2.6.0-test1 with gcc > 3.2
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This is a multi-part message in MIME format.
--------------050301080609020600000804
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 7bit

Hi there!

I finally found the appropriate patch to add the function 
"canonicalize_funcptr_for_compare" to the kernel. It was in 
ftp://ftp.parisc-linux.org/patches/diff-2.4.21-pa2 . A simple 
cut'n'paste to the kernel source of 2.6.0-test1 gives me a working 
kernel with gcc-3.2 on my 715/100.
I don't know whether more stuff of diff-2.4.21-pa2 could go into 2.6.0, 
so I just make a small patch of this particular problem. Can s.b. please 
check this in?
Greetings,
    Ruediger

--------------050301080609020600000804
Content-Type: text/plain;
 name="patch.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="patch.diff"

Index: linux-2.5/arch/parisc/kernel/parisc_ksyms.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/parisc_ksyms.c,v
retrieving revision 1.21
diff -u -p -r1.21 parisc_ksyms.c
--- linux-2.5/arch/parisc/kernel/parisc_ksyms.c	9 Jun 2003 02:24:25 -0000	1.21
+++ linux-2.5/arch/parisc/kernel/parisc_ksyms.c	20 Jul 2003 11:52:21 -0000
@@ -220,3 +220,6 @@ EXPORT_SYMBOL($$dyncall);

 #include <asm/pgtable.h>
 EXPORT_SYMBOL(vmalloc_start);
+
+asmlinkage void * __canonicalize_funcptr_for_compare(void *);
+EXPORT_SYMBOL_NOVERS(__canonicalize_funcptr_for_compare);

Index: linux-2.5/arch/parisc/kernel/real2.S
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/real2.S,v
retrieving revision 1.4
diff -u -p -r1.4 real2.S
--- linux-2.5/arch/parisc/kernel/real2.S	14 Jul 2003 15:21:07 -0000	1.4
+++ linux-2.5/arch/parisc/kernel/real2.S	20 Jul 2003 11:52:21 -0000
@@ -275,6 +275,7 @@ r64_ret:
 	nop

 #endif
+
 	.export pc_in_user_space
 	.text
 	/* Doesn't belong here but I couldn't find a nicer spot. */
@@ -283,3 +284,16 @@ pc_in_user_space:
 	bv,n	0(%rp)
 	nop

+	.export __canonicalize_funcptr_for_compare
+	.text
+	/* http://lists.parisc-linux.org/hypermail/parisc-linux/10916.html
+	**	GCC 3.3 and later has a new function in libgcc.a for
+	**	comparing function pointers.
+	*/
+__canonicalize_funcptr_for_compare:
+#ifdef __LP64__
+       bve (%r2)
+#else
+       bv %r0(%r2)
+#endif
+       copy %r26,%r28

--------------050301080609020600000804--



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On Sat, Jul 19, 2003 at 10:07:19AM -0700, Dara Hazeghi wrote:
> Hi all,
> 
> is there a particular reason gcc, gdb, and userspace
> are still in toplevel cvs on parisc-linux.org? They
> seem a bit out of date at this point, and though
> they're not mentioned faq/cvs.html, they're clearly
> visible on cvs.parisc-linux.org. Maybe they should be
> moved to obsolete?

I'd like to do that. Any objections?

thanks,
grant


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On Sat, Jul 19, 2003 at 10:07:19AM -0700, Dara Hazeghi wrote:
> is there a particular reason gcc, gdb, and userspace
> are still in toplevel cvs on parisc-linux.org?

I've moved gcc and gdb into obsolete.
"userspace" is a bunch of the tests someone might look at
to see what's worth publishing/integrating into other projects.
If someone else thinks they are not worth saving, please move
to obsolete as well.

grant


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--- Grant Grundler <grundler@parisc-linux.org> wrote:
> On Sat, Jul 19, 2003 at 10:07:19AM -0700, Dara
> Hazeghi wrote:
> > is there a particular reason gcc, gdb, and
> userspace
> > are still in toplevel cvs on parisc-linux.org?
> 
> I've moved gcc and gdb into obsolete.

Thanks!

> "userspace" is a bunch of the tests someone might
> look at
> to see what's worth publishing/integrating into
> other projects.

Good point. I withdraw my suggestion for userspace
then. My motivation was mainly to prevent others from
accidentally downloading gcc 3.0.4 thinking that it
was the currently recommended version for hppa-linux
:-)

Dara

__________________________________
Do you Yahoo!?
SBC Yahoo! DSL - Now only $29.95 per month!
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-------------------
> On Sat, Jul 19, 2003 at 01:31:41PM +0200, R=FCdiger Scholz wrote:
> > Hi,
> >=20
> > looking at the Download page from the ESIEE-Team I found the
following=20
> > patch from Thibaut. It filters the traffic from/to the loopback
device,=20
> > so network led isn't blinking when accessing the loopback device.=20
> > Should'nt it go into CVS?
>=20
> Seems like a reasonable patch to me.  I'll ask Thibaut about it when
> he gets here.
>=20

sure, go ahead ;o)

T-Bone, finally getting a (pretty wicked) internet access ;^)



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I am trying to install Debian cd's on a D-Server. The
system does boot up and go through the boot process.
Then it switches into graphics mode and everything
goes down the tube. I am using a serial terminal that
doesn't do graphics. Obviously very new at this. Any
help would be very appreciated.

=====
William J. (Bill) Van Vliet
Omnetrix International, Inc.

http://www.omnetrix.com

Other email: wjvv@omxi.com


From - Thu Nov 08 21:28:31 2018
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From: Chris Systems <info@wias.net.au>
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Subject: Re: [parisc-linux] 64 MB RAM for 3000 and 9000 seriesHP
Date: Tue, 22 Jul 2003 10:04:34 +1000
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Sorry RISC people,

Have revisited my HP Ram collection was asked to provide serial numbers and
Ram type.

Sample serial numbers below

A56E00272649 Puerto Rico 3746
A2580-60001 64MB F-3517

70 sticks are available.

Not sure what they are worth but I am happy to Send anywhere.

I am in Brisbane Australia if you are interested they can be packed and sent
immediately

Yours

Chris Christie

1300 88 36 38
info@wias.net.au




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From: Grant Grundler <grundler@parisc-linux.org>
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On Mon, Jul 21, 2003 at 07:24:11PM +0530, Ramesh Doddaiah wrote:
> Hi Grant,
> 
>  
>    My name is Ramesh Doddaiah working in HP india in IA RAGE Project, 
> naresh who is  working in PA RAGE give me your email id.

ok

>    I had posted this problem to parisc-linux@lists.parisc-linux.org on
> 16 july, i didn't get any reply.

most of the parisc linux team has been on the road for OLS.

>    I am using Linux/i386 -> Linux/PARISC cross compiler
> (xc-latest.tar.gz from http://ftp.parisc-linux.org/x86-xcompilers/ ), 
> while compiling some piece of code which uses readline and ncurses lib
> i get this errors



> 
> /opt/palinux/lib/gcc-lib/hppa-linux/3.0.3/../../../../hppa-linux/bin/ld:
> cannot find -lreadline
> collect2: ld returned 1 exit status
> 
> 
>    I don't have readline and curses library for this version of compiler.
>    I did searched a lot to get this libraries,but i didn't get much information.
> 
>    Please tell me where can i find readline and ncurses
>    library for this version of cross compiler.
> 
>    GCC Version: 3.0.3

I'm pretty sure the old cross compiler is broken.
Send me your id_rsa.pub and I'll get you an account
on a a500 where you can use a hppa->hppa64 toolchain.

Someone is looking at fixing the hppa->hppa64 cross compiler
in gcc cvs. So we should get a shiny new *native*
toolset to work with. The alternative is to try building your
own cross compiler from a newer gcc out of debian.

You might also try the gcc mailing list.

hth,
grant

> 
> 
>    Thx :)
>    Ramesh Doddaiah
> 


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On Mon, Jul 21, 2003 at 03:52:03PM -0700, William J. (Bill) Van Vliet wrote:
> I am trying to install Debian cd's on a D-Server. The
> system does boot up and go through the boot process.
> Then it switches into graphics mode and everything
> goes down the tube. I am using a serial terminal that
> doesn't do graphics. Obviously very new at this. Any
> help would be very appreciated.


Either my routing is foobar or google.com is really down again.
try searching for "ttyB0" and "D220" (or "D200") on
	http://www.parisc-linux.org/mailing-lists/index.html

grant


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-------------------
> On Mon, Jul 21, 2003 at 07:24:11PM +0530, Ramesh Doddaiah wrote:
> > Hi Grant,
> >=20
> > =20
> >    My name is Ramesh Doddaiah working in HP india in IA RAGE
Project,=20
> > naresh who is  working in PA RAGE give me your email id.
>=20
> ok
>=20
> >    I had posted this problem to
parisc-linux@lists.parisc-linux.org on
> > 16 july, i didn't get any reply.
>=20
> most of the parisc linux team has been on the road for OLS.
>=20
> >    I am using Linux/i386 -> Linux/PARISC cross compiler
> > (xc-latest.tar.gz from http://ftp.parisc-linux.org/x86-xcompilers/
),=20
> > while compiling some piece of code which uses readline and ncurses
lib
> > i get this errors
>=20
>=20
>=20
> >=20
> >
/opt/palinux/lib/gcc-lib/hppa-linux/3.0.3/../../../../hppa-linux/bin/l
d:
> > cannot find -lreadline
> > collect2: ld returned 1 exit status
> >=20
> >=20
> >    I don't have readline and curses library for this version of
compiler.
> >    I did searched a lot to get this libraries,but i didn't get
much information.
> >=20
> >    Please tell me where can i find readline and ncurses
> >    library for this version of cross compiler.
> >=20
> >    GCC Version: 3.0.3
>=20
> I'm pretty sure the old cross compiler is broken.

it is.

http://lists.parisc-linux.org/pipermail/parisc-linux/2003-July/020483.
html

Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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-------------------
> On Mon, Jul 21, 2003 at 03:52:03PM -0700, William J. (Bill) Van
Vliet wrote:
> > I am trying to install Debian cd's on a D-Server. The
> > system does boot up and go through the boot process.
> > Then it switches into graphics mode and everything
> > goes down the tube. I am using a serial terminal that
> > doesn't do graphics. Obviously very new at this. Any
> > help would be very appreciated.
>=20
>=20
> Either my routing is foobar or google.com is really down again.
> try searching for "ttyB0" and "D220" (or "D200") on
> 	http://www.parisc-linux.org/mailing-lists/index.html
>=20
> grant

http://pateam.esiee.fr/doc.html is a good start point for newbies as
well ;)

Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/



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Subject: [parisc-linux] nfs-kernel-server: can't use nfs ...
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Package: nfs-kernel-server
Version: 1.0.3-2
Severity: critical

Yes same notice on hppa unstable debian gnu/linux:
"mount: RPC: Unable to receive; errno = Connection refused"

dmesg informe me that rpc.mountd do_page_fault() at this very moment: this
explain the previous message. Is it the same on other paltform?

temporary come back to nfs-kernel-server_1.0.2-2 (date Feb 2003) help temporary
to solve this pb.

hth,
    Joel



------------------------------------------------------
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On s'habitue vite  payer son ADSL moins cher!
Plus d'info? Cliquez ici... http://reg.tiscali.be/default.asp?lg=fr 




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Does anyone have or know where I can find
some A4504A PMC Bridge Adaptors for the 743/744/745
series product or complete systems? If not does anyone
know of a 3rd party PMC expansion adaptor that will
work with the SBC? Thanks for any help you can offer.

steve@alimartech.com

sales@alimartech.com                       (603) 679-2990 - Phone
Alimar Technology Corp,                     (603) 679-2550 - Fax
309 State Route 125,
Brentwood, NH
03833
www.alimartech.com
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<DIV><FONT face=3DVerdana size=3D2>Does anyone have or know where I can=20
find</FONT></DIV>
<DIV><FONT face=3DVerdana size=3D2>some A4504A PMC Bridge Adaptors for =
the=20
743/744/745</FONT></DIV>
<DIV><FONT face=3DVerdana size=3D2>series product or complete systems? =
If not does=20
anyone</FONT></DIV>
<DIV><FONT face=3DVerdana size=3D2>know of a 3rd party PMC expansion =
adaptor that=20
will</FONT></DIV>
<DIV><FONT face=3DVerdana size=3D2>work with the SBC? Thanks for any =
help you can=20
offer.</FONT></DIV>
<DIV><FONT face=3DVerdana size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DVerdana size=3D2><A=20
href=3D"mailto:steve@alimartech.com">steve@alimartech.com</A></FONT></DIV=
>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DVerdana size=3D2><A=20
href=3D"mailto:sales@alimartech.com">sales@alimartech.com</A>&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
(603) 679-2990 - Phone<BR>Alimar Technology=20
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bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
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From: "Aqeel Ahmad Chughtai" <c.aqeel@caramail.com>
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Subject: [parisc-linux] Business / Financial Benefit from UK
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VERY URGENT & CONFIDENTIAL

Mr=2E Aqeel Ahmad Chughtai
Aberystwyth=2C Wales=2C UK=2E
Email=3A aqeel=40freesurf=2Efr

Assalamualaikum=2C  
Kindly Pardon me if this my letter would be an embarrassment to you for I am Mr=2E Aqeel Ahmad Chughtai=2C a Balochistan tribeman writing you from Aberystwyth=2C United Kingdom and I am presently on Political Asylum in the UK where I and several other Balochs sought refuge from the oppressive regime of the Iranian Government=2E

I am a council leader for one of the three refugee camps here in Europe=2C represents nearly 12=2C000 Balochs who have never received official refugee status because the EU Parliament only signed the U=2ES=2E Refugee Convention with the stipulation that United Kingdom and other European countries would not recognize non-Europeans as refugees=2E 

As a result=2C Balochs admitted into the UK have no rights=2C and no International agencies have been able to secure permission from the European Union to provide protection for the refugees=2C hence the UK Government have refused to grant me and others Political Asylum and they have gone further with threat to deport us back to Iran and I know that if this is done I would be killed if I step into Iran just as several students were killed recently during demonstration=2E I work to protect the welfare of displaced Balochs at great personal risk=2E My efforts have raised worldwide awareness of life in the makeshift camps where overcrowding=2C mass poisonings=2C beatings=2C and lack of medical supplies=2C water=2C and electricity cause hundreds of men=2C women=2C and children to die of cold=2
 C hunger=2C malnutrition=2C and communicable diseases=2E

The happy news here is that some public spirited philanthropists who would not want their identities made public called us after the unique and historical London Conference=2C which lasted for two days =28 26th & 27th of April 2003=29 told us that they have deposited the Sum of US$32Million with a Financial Institution in favour of the Balochs who are scattered all over the world and only I and or any person I nominate can claim the money from the Financial company and the money should be used mainly for purchasing of foods=2C pharmaceutical drugs=2C Clothings etc for thousands of our people suffering all over the world=2E  

I am therefore using this medium to solicit for your assistance=2E Your contacts were obtained  by me during my enduring search for a reliable and competent person that would claim this money for us from the company where it was deposited=2E 

There is a POWER OF ATTORNEY which I would  send alongside copies of my National Identity cards =2F Passport to you that would enable you claim the money from the Financial Company on our behalf=2E Upon your agreement and readiness to assist us claim the money =28US$32Million=29 from the Company=2C 20% of the total money would be your share for all your anticipated assistance=2C while 5% would be for any incidental expenses that you might incur in the process of claiming the money and transferring it to your Country=2C while the balance of 75% would be used to purchase Drugs=2C Clothing=2C Foods etc as earlier stated above=2C as I and a council leader of the people would find a way to travel down to your Country to make joint purchases of the above stated items=2E

I wish to repeat here that we have unshaken Confidence and trust in you and also wish to remind you of the TOP SECRECY this transaction requires=2C as we expect your positive response through this email address as stated above you can only reach me through this  above email as my movement is presently restricted by law covering Asylum Seekers=2C our movements are also restricted from travelling outside this Zone and Country for now=2C but  after receipt of your positive response and you wish to discuss with me I might give you a secret telephone number where you can reach me=2E On receiving your positive response we hope to finish this transaction within one week as a lot of our people are dying from diseases and hunger=2E

Expecting  your URGENT Positive response and thanks in advance=2E

Waalaikum salam=2C
Mr=2E Aqeel Ahmad Chughtai=09=09=09        









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Subject: [parisc-linux] Re: Bug#200619: gcc: parisc: compiling dietlibc-dev with -Os caus
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> [CC to jda]
> 
> Please can you recheck with a current gcc snapshot (from the
> gcc-snapshot package) and attach the preprocessed source?

This doesn't appear to be a gcc problem.  The register %r3 is saved
on the stack in __stdio_init_file_nothreads.  The stack location
is clobbered by the fstat syscall.

> > +  {
> > +    struct stat st;
> > +    fstat(fd,&st);

At the fstat call we have the following values:

Breakpoint 11, 0x00010b10 in __stdio_init_file_nothreads ()
(gdb) printf "0x%x\n",*0xfaf005a8
0xfaf004c0
(gdb) printf "0x%x\n",$r25
0xfaf00548
(gdb) printf "0x%x\n",$r26
0x5
(gdb) c
Continuing.

Breakpoint 12, 0x00010b18 in __stdio_init_file_nothreads ()
(gdb) printf "0x%x\n",*0xfaf005a8
0x0

0xfaf005a8 is the location where %r3 was saved.  The break is at the
fstat syscall.  Non of the user space code in the call patch affects
the above location, so the bug must be in the kernel.

I looked at this on a 64-bit kernel:

dave@gsyprf11:~/dietlibc-0.22.orig$ uname -a
Linux gsyprf11.external.hp.com 2.4.21-pa6 #23 Mon Jul 14 23:11:39 PDT 2003 parisc64 GNU/Linux

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] preempt support for 2.6.0-test1
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Fresh from Grant's room @ OLS :-)

ftp://ftp.parisc-linux.org/patches/diff-2.6.0-test1-preempt

Seems to boot and can compile stuff on a500. YMMV. Comments, test 
results, etc appreciated.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] Generic light-weight syscall.
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pa,

Any thoughts about how one should implement some type of lightweight
syscall for our glibc to use?

We already have the makings of a simple system for SET_THREAD_SELF (e.g.
seting cr27, the thread register, from userpsace), and I want to extend
this to:

exchange_and_add (volatile uint32_t *mem, int val)
atomic_add (volatile uint32_t *mem, int val)
compare_and_swap (volatile long int *p, long int oldval, long int newval)

o---> libc 
 --> exchange_and_add 
  ==> Params into kernel
   ==> disable interrupts on the current processor
    ==> take a semaphore to keep other cpu's out
    ==> do work 
    ==> release semaphore
   ==> reenable i-bit
  --> back into userspace and done.

This _must_ be very very fast, and appear atomic to userspace.

Perhaps adding other pages instead of 0xE0 for set_thread_self might be
the simplest way to do this? The area after the linux gateway page
perhaps? Which seems to be the start of the next 4k page? Would this be
possible? e.g. branch to 0x1000 (not 0x100 which is the current syscall
branch).

c.



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--mYCpIKhGyMATD0i+
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pa,

Lamont and myself were discussing the lightweight syscall
implementations and ran across some interesting itlb optimizations.

We first looked at the itlb_miss_XX functions, where XX is one of 11 or
20 wether your kernel is 32 or 64-bits respectively. And we saw that
there is an interlocked 'or' that nullifies a compare and branch. This
as Lamont argued, isn't as optimal as possible. 

Before:
	mfsp current space
	/* if faulting space is kernel space that's okay */
	or with nullify the current space and 0.
	/* die bad userpace die */
	cmpb if the faulting space <> current space then die.

Which can mean that branch prediction borks _all_ the time since if
userspace was constantly faulting then there wouldn't be much userspace
left.

Now:
	mfsp current space
	/* branch prediciton forward is winning */
	cmpb to itlb_user_fault if faulting space <> current space.
	/* ... else life is good */


	itlb_user_fault:
	/* Was it the kernel? Oh yeah... that's okay then */
	/* branch prediction winning again! */
	cmpb if the faulting space was 0, then go back up.

The nice part seems to be the predicted branches. Since we still have
one interlock between the mfsp and the cmpb, but the processor is
already filled it's queues with coming insn in the next bit of the itlb.
We keep the processor looking forward in the common case. Maybe it's
early in the morning and I'm not thinking well, but maybe it's Lamonts
ability to convince you of something you aren't sure of :)

Patch attached. We also moved a zdep to better the forward path during a
set of insn that weren't doing much waiting around for a memory read.

THE PATCH IS UNTESTED! If you want to give it a shot... please do so and
tell us if your box dies^H^H^H^H runs faster :)

Cheers,
Carlos.


--mYCpIKhGyMATD0i+
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="entry.S.diff"

Index: entry.S
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/entry.S,v
retrieving revision 1.98
diff -u -p -r1.98 entry.S
--- entry.S	9 Dec 2002 06:09:08 -0000	1.98
+++ entry.S	25 Jul 2003 06:37:58 -0000
@@ -1535,8 +1535,7 @@ itlb_miss_11:
 	mfctl           %cr25,ptp	/* load user pgd */
 
 	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,itlb_fault /* forward */
+	cmpb,<>,n	t0,spc,itlb_user_fault /* forward */
 
 	/* First level page table lookup */
 
@@ -1551,6 +1550,10 @@ itlb_miss_common_11:
 	sh2addl 	 t0,ptp,ptp
 	ldi		_PAGE_ACCESSED,t1
 	ldw		 0(ptp),pte
+
+	/* Running parallel, taken from below 'zdep0' */
+	zdep            spc,30,15,prot  /* create prot id from space */
+
 	bb,>=,n 	 pte,_PAGE_PRESENT_BIT,itlb_fault
 
 	/* Check whether the "accessed" bit was set, otherwise do so */
@@ -1559,7 +1562,7 @@ itlb_miss_common_11:
 	and,<>		t1,pte,%r0	/* test and nullify if already set */
 	stw		t0,0(ptp)	/* write back pte */
 
-	zdep            spc,30,15,prot  /* create prot id from space */
+	/* zdep0 moved back */
 	dep             pte,8,7,prot    /* add in prot bits from pte */
 
 	extru,=		pte,_PAGE_NO_CACHE_BIT,1,r0
@@ -1602,8 +1605,7 @@ itlb_miss_20:
 	mfctl           %cr25,ptp	/* load user pgd */
 
 	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,itlb_fault /* forward */
+	cmpb,<>,n	t0,spc,itlb_user_fault	/* forward */
 
 	/* First level page table lookup */
 
@@ -1882,6 +1884,15 @@ kernel_bad_space:
 dbit_fault:
 	b               intr_save
 	ldi             20,%r8
+
+itlb_user_fault:
+	/* User tlb missed for other than his own space. Optimization. */
+#ifdef __LP64__
+	cmpb,=		%r0,t0,itlb_miss_common20 /* backward */
+#else
+	cmpb,=		%r0,t0,itlb_miss_common11 /* backward */
+#endif
+	nop
 
 itlb_fault:
 	b               intr_save

--mYCpIKhGyMATD0i+--


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Subject: Re: [parisc-linux] Generic light-weight syscall.
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On Fri, Jul 25, 2003 at 02:37:40AM -0400, Carlos O'Donell wrote:
> Any thoughts about how one should implement some type of lightweight
> syscall for our glibc to use?

I have lots of thoughts ;-)

> We already have the makings of a simple system for SET_THREAD_SELF (e.g.
> seting cr27, the thread register, from userpsace), and I want to extend
> this to:
> 
> exchange_and_add (volatile uint32_t *mem, int val)
> atomic_add (volatile uint32_t *mem, int val)
> compare_and_swap (volatile long int *p, long int oldval, long int newval)

Sure.  Sounds like a great idea.

> o---> libc 
>  --> exchange_and_add 
>   ==> Params into kernel
>    ==> disable interrupts on the current processor
>     ==> take a semaphore to keep other cpu's out
>     ==> do work 
>     ==> release semaphore
>    ==> reenable i-bit
>   --> back into userspace and done.
> 
> This _must_ be very very fast, and appear atomic to userspace.

I'd say a spinlock rather than a semaphore.  And likely a special-cased
one too.

> Perhaps adding other pages instead of 0xE0 for set_thread_self might be
> the simplest way to do this? The area after the linux gateway page
> perhaps? Which seems to be the start of the next 4k page? Would this be
> possible? e.g. branch to 0x1000 (not 0x100 which is the current syscall
> branch).

I'd say we should keep doing stuff on our existing gateway page until we
exhaust it.  We've got plenty of space -- 248 instruction slots left before
0xE0, and a lot of space left after the syscall handler.

On a related subject, fast gettimeofday is always a popular idea.  I'm not
sure of all the ramifications of, for example, mapping a user-read-only,
system-writable data page after the gateway page (can't put the data
on the existing gateway page; a page that can do privilege promotion
isn't readable/writable).  If we have only one CPU update the data on
that page, time shouldn't go backwards ... right?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, Jul 25, 2003 at 03:04:50AM -0400, Carlos O'Donell wrote:
> @@ -1882,6 +1884,15 @@ kernel_bad_space:
>  dbit_fault:
>  	b               intr_save
>  	ldi             20,%r8
> +
> +itlb_user_fault:
> +	/* User tlb missed for other than his own space. Optimization. */
> +#ifdef __LP64__
> +	cmpb,=		%r0,t0,itlb_miss_common20 /* backward */
> +#else
> +	cmpb,=		%r0,t0,itlb_miss_common11 /* backward */
> +#endif
> +	nop

can't do that.  we have three sets of routines -- itlb_miss_common_11,
itlb_miss_common_20 and itlb_miss_common_20w.  we select between _20w
or not at compile time (if it's 64-bit, it's PA 2.0 Wide), but select
between _20 and _11 at boot time (fault_vector_20 vs fault_vector_11).

shame on you, you didn't even try assembling it ;-)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] Re: Bug#201873: nfs-kernel-server: can't use nfs ...
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According to Joel Soete:
> dmesg informe me that rpc.mountd do_page_fault() at this very moment

This is almost certainly the use-of-freed-memory bug that many people
suffered from in 1.0.3-1.

I have already uploaded 1.0.5-1, which fixes this bug, so I'm closing
this bug report.  If your problem continues to occur (which I strongly
doubt it will), please submit a new bug.

Thanks for the bug report.
-- 
Chip Salzenberg               - a.k.a. -               <chip@pobox.com>
"I wanted to play hopscotch with the impenetrable mystery of existence,
    but he stepped in a wormhole and had to go in early."  // MST3K


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> This doesn't appear to be a gcc problem.  The register %r3 is saved
> on the stack in __stdio_init_file_nothreads.  The stack location
> is clobbered by the fstat syscall.
> 
> > > +  {
> > > +    struct stat st;
> > > +    fstat(fd,&st);
> 
> At the fstat call we have the following values:
> 
> Breakpoint 11, 0x00010b10 in __stdio_init_file_nothreads ()

Carlos O'Donell and myself looked at this problem this afternoon.  This
is a dietlib problem.  Dietlib is not using the correct kernel_stat
mapping for parisc.  They appear to be using the i386 mapping.  They
need to look at /libc/sysdeps/unix/sysv/linux/xstatconv.c and the
hppa/kernel_stat.h header in glibc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> > Any thoughts about how one should implement some type of lightweight
> > syscall for our glibc to use?
> 
> I have lots of thoughts ;-)

Spill the beans!
 
> > o---> libc 
> >  --> exchange_and_add 
> >   ==> Params into kernel
> >    ==> disable interrupts on the current processor
> >     ==> take a semaphore to keep other cpu's out
> >     ==> do work 
> >     ==> release semaphore
> >    ==> reenable i-bit
> >   --> back into userspace and done.
> > 
> > This _must_ be very very fast, and appear atomic to userspace.
> 
> I'd say a spinlock rather than a semaphore.  And likely a special-cased
> one too.

Okay, we talked about this, choose a random 4-bits from the incoming
address and hash this to select one of 16 spinlocks that keep other
cpu's out. This, as you indicated, should scale to more than 4 CPU's and
make LaMont happy.
 
> I'd say we should keep doing stuff on our existing gateway page until we
> exhaust it.  We've got plenty of space -- 248 instruction slots left before
> 0xE0, and a lot of space left after the syscall handler.

I'll see if I can fit _all_ the operations into jumps in that area. If I
can't then I'll see what the performance of implementing "one" operation
in kernel and using that to do the rest atomically.
 
> On a related subject, fast gettimeofday is always a popular idea.  I'm not
> sure of all the ramifications of, for example, mapping a user-read-only,
> system-writable data page after the gateway page (can't put the data
> on the existing gateway page; a page that can do privilege promotion
> isn't readable/writable).  If we have only one CPU update the data on
> that page, time shouldn't go backwards ... right?

If you map the page and make CPU 0 update the date, then I'll write the
userspace interface for gettimeofday.

I'm not sure how we would do the check for 'do we see fast gettimeofday'
but it might be that we include a magic value there and check for it?
Other arches must have solved this.

c.


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> 
> If you map the page and make CPU 0 update the date, then I'll write the
> userspace interface for gettimeofday.
> 
> I'm not sure how we would do the check for 'do we see fast gettimeofday'
> but it might be that we include a magic value there and check for it?
> Other arches must have solved this.

Talked to Rik Van Riel about fast gettimeofday and he indicated that
it's not doable since you can't guarantee your process will get
scheduled on another CPU whose clock is out of sync by more than X and
get negative time. Though I imagine you were talking about having one
CPU update one page with time on it... and then other CPU's read this?
LaMont notes that there is no requirement from the PA design that CPU's
clock at _exactly_ the same frequency or have monotonically incrementing
clocks at the right rate. Could you explain the idea you have a bit
more?

c.


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> > @@ -1882,6 +1884,15 @@ kernel_bad_space:
> >  dbit_fault:
> >  	b               intr_save
> >  	ldi             20,%r8
> > +
> > +itlb_user_fault:
> > +	/* User tlb missed for other than his own space. Optimization. */
> > +#ifdef __LP64__
> > +	cmpb,=		%r0,t0,itlb_miss_common20 /* backward */
> > +#else
> > +	cmpb,=		%r0,t0,itlb_miss_common11 /* backward */
> > +#endif
> > +	nop
> 
> can't do that.  we have three sets of routines -- itlb_miss_common_11,
> itlb_miss_common_20 and itlb_miss_common_20w.  we select between _20w
> or not at compile time (if it's 64-bit, it's PA 2.0 Wide), but select
> between _20 and _11 at boot time (fault_vector_20 vs fault_vector_11).
> 
> shame on you, you didn't even try assembling it ;-)

I'll take a look at that and rewrite the patch. It was 3AM when I
finished it and didn't bother to compile it as I passed out on the
bed ;)

c.


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On Sat, Jul 26, 2003 at 02:00:32PM -0400, Carlos O'Donell wrote:
> Talked to Rik Van Riel about fast gettimeofday and he indicated that
> it's not doable since you can't guarantee your process will get
> scheduled on another CPU whose clock is out of sync by more than X and
> get negative time.

Yes we can. We can sync CR16 across CPUs within a few CPU cycles.
I've described this before on parisc-linux.

"sync" means figure out the difference between CR16 on several
CPUs and using CPU 0 as the reference.

> Though I imagine you were talking about having one
> CPU update one page with time on it... and then other CPU's read this?
> LaMont notes that there is no requirement from the PA design that CPU's
> clock at _exactly_ the same frequency or have monotonically incrementing
> clocks at the right rate.

correct. IIRC 9000/870 have seperate clock sources.
But all the boxes we support to date have exactly one clock source.
The multi-cell boxes (like superdome) will have multiple sources
and I don't know how to handle those - maybe a "not quite so fast"
gettimeofday().

hth,
grant


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Hi all,

As you can read, I am back home safely. Once again, I would like to 
thank everybody who was at OLS this year. It is always the same pleasure 
to meet you guys in real.

If I did not say 'bye' saturday, please accept my digital one :

Bye and it was nice meeting you, Thomas !



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On Sun, 27 Jul 2003 20:59:33 +0200
Thomas Marteau <marteaut@tuxfamily.org> wrote:

> Hi all,
> 
> As you can read, I am back home safely. Once again, I would like to 
> thank everybody who was at OLS this year. It is always the same pleasure
> to meet you guys in real.
> 
> If I did not say 'bye' saturday, please accept my digital one :
> 
> Bye and it was nice meeting you, Thomas !
> 
Well Thomas was a bit quicker than me on that mail, so i'll join my thanks
there as well.

It's been very cool to meet everyone, and I really enjoyed that trip!

I hope there will be other meeting occasions soon, and for those i
couldn't say goodbye either, well, same remark than Thomas :)

Hope to see you again soon,

Thibaut


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Xref: news.gmane.org gmane.linux.ports.parisc:19030

On Saturday 26 July 2003 01:00 pm, Carlos O'Donell wrote:
> > If you map the page and make CPU 0 update the date, then I'll write the
> > userspace interface for gettimeofday.
> >
> > I'm not sure how we would do the check for 'do we see fast gettimeofday'
> > but it might be that we include a magic value there and check for it?
> > Other arches must have solved this.
>
> Talked to Rik Van Riel about fast gettimeofday and he indicated that
> it's not doable since you can't guarantee your process will get
> scheduled on another CPU whose clock is out of sync by more than X and
> get negative time. Though I imagine you were talking about having one
> CPU update one page with time on it... and then other CPU's read this?
> LaMont notes that there is no requirement from the PA design that CPU's
> clock at _exactly_ the same frequency or have monotonically incrementing
> clocks at the right rate. Could you explain the idea you have a bit
> more?
Note - some multiple cpu hardware intentionally clocks the cpu's at
slightly different rates to limit RFI generation.
Not sure if any HP-PARISC machines do such clocking.
Mike


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From: "Joel Soete" <jsoe0708@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] k-2.6.0-test2-pa0: __canonicalize_f_f_c patch
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Xref: news.gmane.org gmane.linux.ports.parisc:19031

Hi Grant,

Here is your patch forward-port to 2.6.0-test2-pa0:
diff -NaurX dontdiff linux-2.6.0-test2-pa0/arch/parisc/kernel/parisc_ksyms.c
linux-2.6.0-test2-pax/arch/parisc/kernel/parisc_ksyms.c
--- linux-2.6.0-test2-pa0/arch/parisc/kernel/parisc_ksyms.c	2003-06-10 07:34:05.000000000
+0200
+++ linux-2.6.0-test2-pax/arch/parisc/kernel/parisc_ksyms.c	2003-07-28 13:22:48.000000000
+0200
@@ -122,10 +122,12 @@
 extern off_t sys_lseek(int, off_t, int);
 extern int sys_read(int, char *, int);
 extern int sys_write(int, const char *, int);
+asmlinkage long sys_wait4(pid_t ,unsigned int *, int, struct rusage *);
 EXPORT_SYMBOL(sys_open);
 EXPORT_SYMBOL(sys_lseek);
 EXPORT_SYMBOL(sys_read);
 EXPORT_SYMBOL(sys_write);
+EXPORT_SYMBOL(sys_wait4);
 
 #include <asm/semaphore.h>
 EXPORT_SYMBOL(__up);
@@ -201,6 +203,9 @@
 EXPORT_SYMBOL(__lshrdi3);
 EXPORT_SYMBOL(__muldi3);
 
+asmlinkage void * __canonicalize_funcptr_for_compare(void *);
+EXPORT_SYMBOL_NOVERS(__canonicalize_funcptr_for_compare);
+
 #ifdef __LP64__
 extern void __divdi3(void);
 extern void __udivdi3(void);
diff -NaurX dontdiff linux-2.6.0-test2-pa0/arch/parisc/kernel/real2.S linux-2.6.0-test2-pax/arch/parisc/kernel/real2.S
--- linux-2.6.0-test2-pa0/arch/parisc/kernel/real2.S	2003-07-14 19:36:03.000000000
+0200
+++ linux-2.6.0-test2-pax/arch/parisc/kernel/real2.S	2003-07-28 13:18:41.000000000
+0200
@@ -275,6 +275,7 @@
 	nop
 
 #endif
+
 	.export pc_in_user_space
 	.text
 	/* Doesn't belong here but I couldn't find a nicer spot. */
@@ -283,3 +284,17 @@
 	bv,n	0(%rp)
 	nop
 
+
+	.export __canonicalize_funcptr_for_compare
+	.text
+	/* http://lists.parisc-linux.org/hypermail/parisc-linux/10916.html
+	**	GCC 3.3 and later has a new function in libgcc.a for
+	**	comparing function pointers.
+	*/
+__canonicalize_funcptr_for_compare:
+#ifdef __LP64__
+	bve (%r2)
+#else
+	bv %r0(%r2)
+#endif
+	copy %r26,%r28

And also uaccess patch to avoid to obtain a wronb executable k (as for other
platform):
diff -NaurX dontdiff linux-2.6.0-test2-pa0/include/asm-parisc/uaccess.h linux-2.6.0-test2-pax/include/asm-parisc/uaccess.h
--- linux-2.6.0-test2-pa0/include/asm-parisc/uaccess.h	2003-01-13 08:42:40.000000000
+0100
+++ linux-2.6.0-test2-pax/include/asm-parisc/uaccess.h	2003-07-28 15:18:12.000000000
+0200
@@ -28,6 +28,11 @@
  * that put_user is the same as __put_user, etc.
  */
 
+extern int __get_kernel_bad(void);
+extern int __get_user_bad(void);
+extern int __put_kernel_bad(void);
+extern int __put_user_bad(void);
+
 #define access_ok(type,addr,size)   (1)
 #define verify_area(type,addr,size) (0)
 
@@ -35,8 +40,8 @@
 #define get_user __get_user
 
 #if BITS_PER_LONG == 32
-#define LDD_KERNEL(ptr)		BUG()
-#define LDD_USER(ptr)		BUG()
+#define LDD_KERNEL(ptr) __get_kernel_bad();
+#define LDD_USER(ptr) __get_user_bad();
 #define STD_KERNEL(x, ptr) __put_kernel_asm64((u32)x,ptr)
 #define STD_USER(x, ptr) __put_user_asm64((u32)x,ptr)
 #else
@@ -72,7 +77,7 @@
 	    case 2: __get_kernel_asm("ldh",ptr); break; \
 	    case 4: __get_kernel_asm("ldw",ptr); break; \
 	    case 8: LDD_KERNEL(ptr); break;		\
-	    default: BUG(); break;                      \
+	    default: __get_kernel_bad(); break;         \
 	    }                                           \
 	}                                               \
 	else {                                          \
@@ -81,7 +86,7 @@
 	    case 2: __get_user_asm("ldh",ptr); break;   \
 	    case 4: __get_user_asm("ldw",ptr); break;   \
 	    case 8: LDD_USER(ptr);  break;		\
-	    default: BUG(); break;                      \
+	    default: __get_user_bad(); break;           \
 	    }                                           \
 	}                                               \
 							\
@@ -141,7 +146,7 @@
 	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
 	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
 	    case 8: STD_KERNEL(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: __put_kernel_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 	else {                                                  \
@@ -150,7 +155,7 @@
 	    case 2: __put_user_asm("sth",x,ptr); break;         \
 	    case 4: __put_user_asm("stw",x,ptr); break;         \
 	    case 8: STD_USER(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: __put_user_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 								\

Thanks in advance to ci,
    Joel



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Subject: Re: [parisc-linux] Generic light-weight syscall.
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> Yes we can. We can sync CR16 across CPUs within a few CPU cycles.
> I've described this before on parisc-linux.

It might be too costly to do the sync'ing all the time, and too costly
for a fast gettimeofday to do a sync at the polling point.
 
> But all the boxes we support to date have exactly one clock source.
> The multi-cell boxes (like superdome) will have multiple sources
> and I don't know how to handle those - maybe a "not quite so fast"
> gettimeofday().


The whole point behind fast gettimeofday is that userspace apps that
want to do timestamping on a _very_ accurate granularity (e.g.
nanosecondes) can get monotically incrementing numbers on each
gettimeofday. Do we even have such a fast clock on PA? What is the
fastest clock across the most boxes?

c.


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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] k-2.6.0-test2-pa0: __canonicalize_f_f_c patch
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On Mon, Jul 28, 2003 at 04:30:14PM +0200, Joel Soete wrote:
> diff -NaurX dontdiff linux-2.6.0-test2-pa0/arch/parisc/kernel/parisc_ksyms.c
> linux-2.6.0-test2-pax/arch/parisc/kernel/parisc_ksyms.c
> --- linux-2.6.0-test2-pa0/arch/parisc/kernel/parisc_ksyms.c	2003-06-10 07:34:05.000000000
> +0200
> +++ linux-2.6.0-test2-pax/arch/parisc/kernel/parisc_ksyms.c	2003-07-28 13:22:48.000000000
> +0200
> @@ -122,10 +122,12 @@
>  extern off_t sys_lseek(int, off_t, int);
>  extern int sys_read(int, char *, int);
>  extern int sys_write(int, const char *, int);
> +asmlinkage long sys_wait4(pid_t ,unsigned int *, int, struct rusage *);
>  EXPORT_SYMBOL(sys_open);
>  EXPORT_SYMBOL(sys_lseek);
>  EXPORT_SYMBOL(sys_read);
>  EXPORT_SYMBOL(sys_write);
> +EXPORT_SYMBOL(sys_wait4);
>  
>  #include <asm/semaphore.h>
>  EXPORT_SYMBOL(__up);

this bit seems unrelated; why do we need it?

> And also uaccess patch to avoid to obtain a wronb executable k (as for other
> platform):
> diff -NaurX dontdiff linux-2.6.0-test2-pa0/include/asm-parisc/uaccess.h linux-2.6.0-test2-pax/include/asm-parisc/uaccess.h
> --- linux-2.6.0-test2-pa0/include/asm-parisc/uaccess.h	2003-01-13 08:42:40.000000000
> +0100
> +++ linux-2.6.0-test2-pax/include/asm-parisc/uaccess.h	2003-07-28 15:18:12.000000000
> +0200
> @@ -28,6 +28,11 @@
>   * that put_user is the same as __put_user, etc.
>   */
>  
> +extern int __get_kernel_bad(void);
> +extern int __get_user_bad(void);
> +extern int __put_kernel_bad(void);
> +extern int __put_user_bad(void);
> +
>  #define access_ok(type,addr,size)   (1)
>  #define verify_area(type,addr,size) (0)
>  
> @@ -35,8 +40,8 @@
>  #define get_user __get_user
>  
>  #if BITS_PER_LONG == 32
> -#define LDD_KERNEL(ptr)		BUG()
> -#define LDD_USER(ptr)		BUG()
> +#define LDD_KERNEL(ptr) __get_kernel_bad();
> +#define LDD_USER(ptr) __get_user_bad();
>  #define STD_KERNEL(x, ptr) __put_kernel_asm64((u32)x,ptr)
>  #define STD_USER(x, ptr) __put_user_asm64((u32)x,ptr)
>  #else
> @@ -72,7 +77,7 @@
>  	    case 2: __get_kernel_asm("ldh",ptr); break; \
>  	    case 4: __get_kernel_asm("ldw",ptr); break; \
>  	    case 8: LDD_KERNEL(ptr); break;		\
> -	    default: BUG(); break;                      \
> +	    default: __get_kernel_bad(); break;         \
>  	    }                                           \
>  	}                                               \
>  	else {                                          \
> @@ -81,7 +86,7 @@
>  	    case 2: __get_user_asm("ldh",ptr); break;   \
>  	    case 4: __get_user_asm("ldw",ptr); break;   \
>  	    case 8: LDD_USER(ptr);  break;		\
> -	    default: BUG(); break;                      \
> +	    default: __get_user_bad(); break;           \
>  	    }                                           \
>  	}                                               \
>  							\
> @@ -141,7 +146,7 @@
>  	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
>  	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
>  	    case 8: STD_KERNEL(x,ptr); break;			\
> -	    default: BUG(); break;                              \
> +	    default: __put_kernel_bad(); break;			\
>  	    }                                                   \
>  	}                                                       \
>  	else {                                                  \
> @@ -150,7 +155,7 @@
>  	    case 2: __put_user_asm("sth",x,ptr); break;         \
>  	    case 4: __put_user_asm("stw",x,ptr); break;         \
>  	    case 8: STD_USER(x,ptr); break;			\
> -	    default: BUG(); break;                              \
> +	    default: __put_user_bad(); break;			\
>  	    }                                                   \
>  	}                                                       \
>  								\

i like this one.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Mon, Jul 28, 2003 at 11:57:04AM -0400, Carlos O'Donell wrote:
> > Yes we can. We can sync CR16 across CPUs within a few CPU cycles.
> > I've described this before on parisc-linux.
> 
> It might be too costly to do the sync'ing all the time, and too costly
> for a fast gettimeofday to do a sync at the polling point.
>  
> > But all the boxes we support to date have exactly one clock source.
> > The multi-cell boxes (like superdome) will have multiple sources
> > and I don't know how to handle those - maybe a "not quite so fast"
> > gettimeofday().
> 
> 
> The whole point behind fast gettimeofday is that userspace apps that
> want to do timestamping on a _very_ accurate granularity (e.g.
> nanosecondes) can get monotically incrementing numbers on each
> gettimeofday. Do we even have such a fast clock on PA? What is the
> fastest clock across the most boxes?

You know, you don't even need kernel help for this.  According to page
2-5 of the Kane book, the Interval Timer is accessible by non-privileged
instructions.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> You know, you don't even need kernel help for this.  According to page
> 2-5 of the Kane book, the Interval Timer is accessible by non-privileged
> instructions.

Isn't this going to be different for all CPU's? Which means if you get
scheduled around you might see negative moving time?

c.



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On Mon, Jul 28, 2003 at 03:04:55PM -0400, Carlos O'Donell wrote:
> > You know, you don't even need kernel help for this.  According to page
> > 2-5 of the Kane book, the Interval Timer is accessible by non-privileged
> > instructions.
> 
> Isn't this going to be different for all CPU's? Which means if you get
> scheduled around you might see negative moving time?

We discussed this in the Black Thorn ... record what value you last
returned to the user and never return less than that.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] eisa nic: intel 82556. Driver?
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Hello,

	I just installed linux on a HP9000/D280. It's all fine, except the =
machine has two eisa fast ethernet cards, with intel 82556 chipset, and =
I can't make it work.
	I've already searched a lot the internet, this list archives, =
recompiled my kernel with various modules, and I am just about to loose =
my faith. I've found a message just like "with this chipset on eisa, =
you're out of luck".

	Is it really so? Does anyone here heard of this nic working on linux =
parisc? Without fast ethernet, I'm afraid we'll have to give up putting =
linux on it.


	Thank you in advance.


--
Diego Francisco de Gastal Morales

Equipe de Rede
Depto. de Inform=E1tica
Tribunal de Justi=E7a do RS
Porto Alegre/RS - Brasil


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> I'd say we should keep doing stuff on our existing gateway page until we
> exhaust it.  We've got plenty of space -- 248 instruction slots left before
> 0xE0, and a lot of space left after the syscall handler.
> 
> On a related subject, fast gettimeofday is always a popular idea.  I'm not

Why not add a flag to syscall() which indicates whether this is a "fast"
syscall or a "slow" syscall, and based on this, decide whether to do all
the register spilling, etc when entering the kernel?  Then we can
implement the atomic ops as additional "syscalls"....

I would think that there is at least some amount of logic that needs to
be there everytime you enter/exit the kernel, irregardless of whether
you are doing a "fast syscall" (i.e. no need to save the processor
state, etc) or a regular one... i would hope we don't need to have two
copies of that logic.

Carlos had some concerns that this means fast syscalls (or regular ones
perhaps) will always incur a mispredicted branch and/or extra stack
manipulations that may not be needed..... but i'm not yet convinced that
there is enough overhead to make this a problem. what do others think?

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Cc: Matthew Wilcox <willy@debian.org>,
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To: Randolph Chung <tausq@debian.org>
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On Mon, Jul 28, 2003 at 01:30:41PM -0700, Randolph Chung wrote:
> Why not add a flag to syscall() which indicates whether this is a "fast"
> syscall or a "slow" syscall, and based on this, decide whether to do all
> the register spilling, etc when entering the kernel?  Then we can
> implement the atomic ops as additional "syscalls"....
> 
> I would think that there is at least some amount of logic that needs to
> be there everytime you enter/exit the kernel, irregardless of whether
> you are doing a "fast syscall" (i.e. no need to save the processor
> state, etc) or a regular one... i would hope we don't need to have two
> copies of that logic.
> 
> Carlos had some concerns that this means fast syscalls (or regular ones
> perhaps) will always incur a mispredicted branch and/or extra stack
> manipulations that may not be needed..... but i'm not yet convinced that
> there is enough overhead to make this a problem. what do others think?

I don't think enough syscalls are "fast" to make this worth doing.
Most of the things people are talking about for lightweight syscalls are
things that could/should be done in userspace ... except that you need to
be privileged to use them.  So the optimum way to solve them is to have a
special calling convention and todo the absolute minimum amount of work.
Setting cr26 is a great example because we would do it in userspace if
the architecture let us.

Does anyone have a better definition for lightweight syscall?  How about
"Cannot sleep, called frequently, must be fast"?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] k-2.6.0-test2-pa0: __canonicalize_f_f_c patch
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On Mon, Jul 28, 2003 at 05:10:43PM +0100, Matthew Wilcox wrote:
> > +EXPORT_SYMBOL(sys_wait4);
> 
> this bit seems unrelated; why do we need it?

It was missing in 2.4 module builds...but silly me can't find
which 2.4.21 module (*.o)...*sigh*.
Maybe my favorite other arches just confused me:
grundler@gsyprf11:/usr/src/2.4.21$ find -name '*.[chS]' | xargs fgrep
sys_wait4 | fgrep EXPORT
./arch/alpha/kernel/alpha_ksyms.c:EXPORT_SYMBOL(sys_wait4);
./arch/arm/kernel/armksyms.c:EXPORT_SYMBOL(sys_wait4);
./arch/parisc/kernel/parisc_ksyms.c:EXPORT_SYMBOL(sys_wait4);
./arch/x86_64/kernel/x8664_ksyms.c:EXPORT_SYMBOL(sys_wait4);

It's possible this is deprecated.

thanks,
grant


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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] Generic light-weight syscall.
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Cc: Carlos O'Donell <carlos@baldric.uwo.ca>,
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On Mon, Jul 28, 2003 at 08:14:20PM +0100, Matthew Wilcox wrote:
> On Mon, Jul 28, 2003 at 03:04:55PM -0400, Carlos O'Donell wrote:
> > > You know, you don't even need kernel help for this.  According to page
> > > 2-5 of the Kane book, the Interval Timer is accessible by non-privileged
> > > instructions.
> > 
> > Isn't this going to be different for all CPU's? Which means if you get
> > scheduled around you might see negative moving time?
> 
> We discussed this in the Black Thorn ... record what value you last
> returned to the user and never return less than that.

Not very nice if the difference between CPUs is significant.  You could
find yourself checking time on CPU A, doing some work, getting moved to
CPU B, checking time, and finding you apparently did all that in 0ns.

Richard



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Subject: Re: [parisc-linux] eisa nic: intel 82556. Driver?
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On Mon, Jul 28, 2003 at 04:55:25PM -0300, Diego Francisco de Gastal Morales=
 wrote:
> Hello,
>=20
> 	I just installed linux on a HP9000/D280. It's all fine, except the machi=
ne has two eisa fast ethernet cards, with intel 82556 chipset, and I can't =
make it work.
> 	I've already searched a lot the internet, this list archives, recompiled=
 my kernel with various modules, and I am just about to loose my faith. I'v=
e found a message just like "with this chipset on eisa, you're out of luck".
>=20
> 	Is it really so? Does anyone here heard of this nic working on linux par=
isc? Without fast ethernet, I'm afraid we'll have to give up putting linux =
on it.


I gave up on installing some EISA 3com cards in my C180. I believe the
dmac bridge in Linux isn't (yet) general enough to support anything
other than PCI.

That said, is Fast Ethernet really *that* important? You'd have to be
using the host to do fairly trivial tasks thousands of times per second
to saturate 100Mbps. In other words: at these CPU speeds, anything
seriously taxing will obviate your need for that much bandwidth. I do
builds over NFS and notice no appreciable performance hits. (And
certainly bandwidth monitors are never pegged on the network.)

--=20
chris jantzen kb7rnl =3D->         __O
Insert witty comment here.     _`\<,_
http://www.maybe.net/         (*)/ (*)

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From - Thu Nov 08 21:28:35 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: GC Softwares Ltd. <sales@gcnetwork.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Yahoo Matchmakers
Date: Tue,29 Jul 2003 16:31:08 PM
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=====================================================================<BR>Are you one of those unfortunate human beings who are desperately<BR>looking for friends.. but still not getting true friends with whom<BR>you can share your everything..<BR><BR>anyway you wont feel down any more cause GC Chat Network has brought<BR>up a global chat and online match making system using its own GC <BR>Messenger. Attached is the fully functional free version of GC<BR>Instant Messenger and Match Making client..<BR>Just install, register an account with us and find thousands of online<BR>pals all over the world..<BR>You can also search for friends by specific country,city,region etc.<BR><BR>Regards Admin,<BR>GC Global Chat Network System..</BODY></HTML>

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Subject: Re: [parisc-linux] k-2.6.0-test2-pa0: __canonicalize_f_f_c patch
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Xref: news.gmane.org gmane.linux.ports.parisc:19045

Hi Willy,

> diff -NaurX dontdiff linux-2.6.0-test2-pa0/include/asm-parisc/uaccess.h
linux-2.6.0-test2-pax/include/asm-parisc/uaccess.h
[...]

>i like this one.
Thanks (that one I suggest a time ago <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-October/018116.html>
just not ci (forget :))

By the you answer's this
<http://lists.parisc-linux.org/pipermail/parisc-linux/2002-October/018118.html>
any news about this?

Thanks a lot,
    Joel


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From - Thu Nov 08 21:28:35 2018
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Subject: [parisc-linux] k-2.6.0-test2-pa1 failled to build as 64bits
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Xref: news.gmane.org gmane.linux.ports.parisc:19046

Hi pa,

As I do not reach to boot 2.6.0-test2-pa1 in 32bits mode on my b2k, I would
try it in 64bits.

To do so I get last cvs ; make mrproper ; make defconfig.
With make menu config, I select PA8000 and 64bits kernel
(install gcc-hppa64_3.0.ds9-3 and binutils-hppa64_2.11.90.0.19.cvs1)

But make vmlinux failled with following message:
  CPIO    usr/initramfs_data.cpio
  GZIP    usr/initramfs_data.cpio.gz
  AS      usr/initramfs_data.o
usr/initramfs_data.S: Assembler messages:
usr/initramfs_data.S:29: Error: Unknown pseudo-op:  `.incbin'
make[1]: *** [usr/initramfs_data.o] Error 1
make: *** [usr] Error 2

Even if I uncheck InitRamFs support, it also failed?

(I check: it compiles well in 32 gcc-3.0 or 3.3 + __canonicalize_f_f_c patch)

Thanks in advance for further help,
    Joel


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Hi Randolph,

> ftp://ftp.parisc-linux.org/patches/diff-2.6.0-test1-preempt

> Seems to boot and can compile stuff on a500. YMMV. Comments, test 
> results, etc appreciated.
Not so lucky than you with my b2000 so I test it with same success (ie boot
and compile kernel) on my b180.

Thanks,
    Joel

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> > We discussed this in the Black Thorn ... record what value you last
> > returned to the user and never return less than that.
> 
> Not very nice if the difference between CPUs is significant.  You could
> find yourself checking time on CPU A, doing some work, getting moved to
> CPU B, checking time, and finding you apparently did all that in 0ns.

Willy and myself talked about this, you just return 1ns in the case
where you know that _something_ must have taken _some_ amount of time
(e.g. the insns that make up fast gettimeofday) so you couldn't have done
it in zero time :)

I also just noticed (thanks to jejb) that cr16 is readable from
userspace since we leave PSW-S cleared. So the following works:

        unsigned long cr16;
        asm("mfctl %%cr16, %0" : "=r" (cr16) : );
        printf("cr16=%lu\n",cr16);

---
carlos@firin:~$ ./test_cr16_read 
cr16=3544734914
carlos@firin:~$ ./test_cr16_read 
cr16=4230470557
carlos@firin:~$ ./test_cr16_read 
cr16=2337868642
carlos@firin:~$ 
---

It overlaps pretty fast though. Userspace could do the translation and
hold on to a 'last_tick' value and then return a really small value if
we get scheduled onto a negatively-drifted CPU? Do all CPU's update cr16?

Willy, I just realized that the following trail of function calls
doesn't really work under smp:

glibc -> 
 gettimeofday -> 
  syscall + syscall table lookup -> 
   sys32_gettimeofday ->
    do_gettimeofday ->
     gettimeoffset ( returns 0 in smp)

With the comment I don't quite understand:
linux-2.4/arch/parisc/kernel/time.c
   /*
    * FIXME: This won't work on smp because jiffies are updated by cpu
    * 0.
    *    Once parisc-linux learns the cr16 difference between
    *    processors,
    *    this could be made to work.
    */

Does that mean that our time granularity drops drastically in the SMP
case? We loose usec! (2.4 and 2.5 kernels)

c.



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On Mon, Jul 28, 2003 at 06:45:51PM +0100, Matthew Wilcox wrote:
...
> > It might be too costly to do the sync'ing all the time, and too costly
> > for a fast gettimeofday to do a sync at the polling point.

If they all use the same clock source they won't drift.

> > gettimeofday. Do we even have such a fast clock on PA? What is the
> > fastest clock across the most boxes?

cr16

> You know, you don't even need kernel help for this.  According to page
> 2-5 of the Kane book, the Interval Timer is accessible by non-privileged
> instructions.

One needs kernel help in determining the difference between CPUs
and handling CR16 rollover (mostly a problem for 32-bit machines).
But then user space can read CR16 and "normalize" the time.

grant


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On Tue, Jul 29, 2003 at 01:50:58PM -0400, Carlos O'Donell wrote:
>         unsigned long cr16;
>         asm("mfctl %%cr16, %0" : "=r" (cr16) : );
>         printf("cr16=%lu\n",cr16);

this only gets you the CR16 for *that* CPU.
Not useful since CR16 isn't syncronized at powerup between CPUs.
At least I don't think that's the case...maybe Kirk Bresniker knows
how that works. We've talked about this before on parisc-linux.

...
> With the comment I don't quite understand:
> linux-2.4/arch/parisc/kernel/time.c
>    /*
>     * FIXME: This won't work on smp because jiffies are updated by cpu
>     * 0.
>     *    Once parisc-linux learns the cr16 difference between
>     *    processors,
>     *    this could be made to work.
>     */

This is what I've been trying to explain.

> Does that mean that our time granularity drops drastically in the SMP
> case? We loose usec! (2.4 and 2.5 kernels)

not by much.

grant


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On Tue, Jul 29, 2003 at 01:50:58PM -0400, Carlos O'Donell wrote:
> > > We discussed this in the Black Thorn ... record what value you last
> > > returned to the user and never return less than that.
> > 
> > Not very nice if the difference between CPUs is significant.  You could
> > find yourself checking time on CPU A, doing some work, getting moved to
> > CPU B, checking time, and finding you apparently did all that in 0ns.
> 
> Willy and myself talked about this, you just return 1ns in the case
> where you know that _something_ must have taken _some_ amount of time
> (e.g. the insns that make up fast gettimeofday) so you couldn't have done
> it in zero time :)

Depends what people want to use it for.  I couldn't use it to time how
long some syscall took, for example.  But if we zap the microseconds
part on smp anyway, that's irrelevant.

Richard



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On Mon, Jul 28, 2003 at 04:55:25PM -0300, Diego Francisco de Gastal Morales wrote:
> 	I just installed linux on a HP9000/D280. It's all fine,
> except the machine has two eisa fast ethernet cards, with intel 82556
> chipset, and I can't make it work.

No EISA cards which require DMA will work (yet).
Wax (EISA bus controller) docs haven't been published and a non-coherent
IOMMU (have I got that right, James?) needs to be programmed for DMA.

It's likely someone from inside HP will have to write that code
since it's gotten alot harder to publish stuff.

grant


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On Tue, 2003-07-29 at 17:32, Grant Grundler wrote:
> No EISA cards which require DMA will work (yet).

Actually, I believe at least the aha1740 will.  The problem is that very
few have been properly converted to using the API.  A lot have been
converted to use the EISA bus abstraction, but there's no incentive to
take them further.

Fortunately, since EISA cards were mainly designed to work in PIO mode
in I/O space, there are quite a few that will work if they've only been
converted to the new probing API.

> Wax (EISA bus controller) docs haven't been published and a non-coherent
> IOMMU (have I got that right, James?) needs to be programmed for DMA.

I'm not really sure what the wax IOMMU does.  I suspect its main use is
to help ISA like cards, but I don't know for sure. It currently looks
like Wax/Mongoose are simply bypassed, and the DMA goes straight through
the U2/Uturn.

James




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> Depends what people want to use it for.  I couldn't use it to time how
> long some syscall took, for example.  But if we zap the microseconds
> part on smp anyway, that's irrelevant.

Well there was talk of, on irc, of exporting the CPU# through cr26.

- Read cr16
- Read cr26
- Read cr16

If you weren't rescheduled the delta should be a minimal number of
ticks (not taking into account nearness to unsigned overflow). You then
use this tick value to calculate a delta via a table of CPU specific
offsets. If the tick is far out from the last read, then you assume a
reschedule and loop. Perhaps terminating on the third try with a default
delta?

I mean the easiest way, as willy notes is to jump into the kernel with a
fast syscall, disable interrupts, get the CPU# and index into a table of
cpu vs. last known good tick. 

However, since we _can_ read cr16 (as willy wrote in an email I totally
failed to read, sorry willy!) from userspace on most systems (not on
705's and 710's but they aren't SMP anyway and we can change the method
there) we are trying to make good use of that.

So there are a variety of ways:

1. Fast-syscall similar to set_thread_register, clears interrupt bit,
   indexes into cpu# table to get last good known tick and returns it
   to userspace (after cleaning up the mess).

2. Userspace does triple read and loop until it looks like we (in a
   lockless fashion) have both the right CPU# and latest tick which we
   can use to update our CPU/tick table.

3. Export a page with '(tick_val & mask) | CPU#' or 'tick_val xor CPU#'.
   You then use this to determine the CPU and tick atomically in a
   single read.

We know #1 works. We don't know if #2 is faster than #1 (or stable), 
anyone wishing to comment please do :) Number 3 would loose resolution 
in, first by loping off bits, or by having near tick values that 
overlap and you aren't able to find the CPU# from the xor'd quantity.

To add a datapoint to #2, on a PA8700 650Mhz I see:
Anyone wishing to run this test on another box, please do...
---
#include <stdio.h>
#include <time.h>

#define LOOPS 1000

int main(void){
   double avg_diff=0.0;
   unsigned long cr16a, cr16b, cr26;
   int i=LOOPS;

   while(i>0){
      asm("mfctl %%cr16, %%r26   \n\
           mfctl %%cr26, %%r24   \n\
           mfctl %%cr16, %%r25   \n\
           stw %%r26, %0         \n\
           stw %%r25, %1         \n\
           stw %%r24, %2" : "=m" (cr16a), "=m" (cr16b), "=m" (cr26) :);
      printf("cr26=%lu\ncr16a=%lu\ncr16b=%lu\ndiff=%lu\n",
		cr26,cr16a,cr16b,cr16b-cr16a);
      avg_diff+=(double)(cr16b-cr16a);
      printf("avg_diff=%f\n",avg_diff);
      i--;
   }

   printf("Average ticks per back/back cr16 read (%lu loops) = %f\n",
		LOOPS,avg_diff/(double)LOOPS);
   exit(0);
}
---
<snip>
cr26=4294967295
cr16a=3348684869
cr16b=3348684881
diff=12
avg_diff=11435.000000
Average ticks per back/back cr16 read (1000 loops) = 11.435000
carlos@firin:/mnt/flaire/src/linux-2.5/arch/parisc/kernel$ 
---

c.



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> Depends what people want to use it for.  I couldn't use it to time how
> long some syscall took, for example.  But if we zap the microseconds
> part on smp anyway, that's irrelevant.

useconds gets zapped in gettimeofday on SMP systems. I'm working on
trying to fix this :)

c.


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Subject: [parisc-linux] A question about graphic cards - again...
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Hello list,


Although I have found quite a lot of posts about graphic cards in the list archives, I still have a few points unanswered, so here they are.

I'll get tomorrow a C240 which seems to have a Visualize FX2 inside (well the guy I'm getting it from says so). From what I understood, this card is not supported by XFree. Moreover, it's got an EVC connector (sure of that, checked it myself), and the adaptator for VGA is friggin' expensive...

So I was wondering about sticking a regular (as in "from the PC world") PCI VGA card in it, to get graphics and so on. And now, ladies and gentlemen, here are the questions:


- What about firmware support? Will the machine be able to display the boot output on a non-HP PCI card? (mmm... pretty sure it won't, actually)

- What about the kernel? Do I *have* to use STIcon or STIfb on HPPA kernels, or can I use a regular console?

- I have read somewhere that quite a lot of PCI graphic cards are not properly initialised by their X drivers (relying on firmware to be run at boot time). Could people share info about which ones are working, and which ones ain't?

- Last but not least, what about HP-UX support of alien graphic cards?


OK, that's all for today. Thanks a lot in advance for your answers, and best regards!
Dantes



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On Tue, 29 Jul 2003 19:36:25 -0400
Carlos O'Donell <carlos@baldric.uwo.ca> wrote:


> To add a datapoint to #2, on a PA8700 650Mhz I see:
> Anyone wishing to run this test on another box, please do...

A500-5X (PA8600@550Mhz):

cr26=4294934527
cr16a=4175244475
cr16b=4175244488
diff=13
avg_diff=12993.000000
Average ticks per back/back cr16 read (1000 loops) = 12.993000

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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FROM: Mr. Brown Potricio. 
THE NETHERLANDS,


Dear sir,

                                                                                     SOLICITING FOR A BUSINESS VENTURE AND PARTNERSHIP.

Before  I  proceed, I must be very greatful to introduce myself .My name is Mr.Brown Potricio, a Zimbabwean.My father HON.Hipolito Potricio who  was formerly a personal aid to one of the top ministers (minister of finnance) of robert mugabe's former government.Due to my father position and closeness with the president Robert mugabe, my father absconded with  Ten.five million united state dollars (us$10.5m). which was part of the money meant for campainning for president robert Mugabe's re-election into office under Zanu PF Party. Presently I have been able to move the funds from Africa diplomatically to a security company in Netherlands where I now reside as a refugee.

MY REQUEST: As a result of my present situation as a refugee who cannot have access to own an account or accounts,I am looking for a trustworthy individual /firm to advice me in making the rightful investment as wellas to provide account(s)where the funds will be lodge into,more also we are at the interim interested in buying properties for residence as my family will be residing there and in the near future.

COMMISSION/REMUNERATION: As regards your commission/remuneration,I and my immediate family have decided to offer you 25% of the total sum and also set aside 5% for all your expenses (i.e) telephone bills,travelling expenses, hotel bills and other miscellaneous expenses.

NOTE:   I shall commit half of my own share of the total sum into a joint venture project preferably in the purchase of real estate or other profitable business venture.Be assured that you stand no risk of any kind as the funds in question belong to me alone. As soon as I get your consent , I  will furnish you with the details and contact of the security company and a face to face meeting will be arrange in order to know each other better.

I  strongly believe that associating with you to emback on this and other business ventures will derive a huge success hereafter and it will be a long lasting business association. if you have any question, do not hesitate to contact me with the above telephone number and e-mail address.

I also want you to know that I kept this all along,not because I am self sentered,or greedy,but for the common interest of my people.

I await your anticipated co-operation.

yours truly

Mr. Brown Potricio.


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Hi pa,

Do we have now to co the new branch (linux-2.6)?

Joel

------------------------------------------------------
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Hi all,

I'm sure this is a FAQ, but I didn't find an answer anywhere in the archives.

I've just installed Debian 3.0 (woody) on my venerable HP 715/50.  The install went flawlessly and easily (great kudos to all involved in the hppa port!)

Now I'm envious of all you hppa Linux old-timers who are running Gnome, and I'm trying to load the X windows stuff.  I tried installing X Windows and Desktop System from tasksel, and I also tried installing X Windows "by hand" using apt-get.  Either way, the install will not complete, saying that twm cannot be installed.

When I try to install twm, I get:

# apt-get install twm
Reading Package Lists... Done
Building Dependency Tree... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.

Since you only requested a single operation it is extremely likely that
the package is simply not installable and a bug report against
that package should be filed.
The following information may help to resolve the situation:

Sorry, but the following packages have unmet dependencies:
  twm: Depends: menu (> 1.5) but it is not installable
E: Sorry, broken packages


When I look around for the menu package, it's nowhere to be found.

What to do?  Do you all install XFree86 from its own distribution, bypassing the .deb files?

Any tips are most appreciated.

Thanks!
Greg


___________________________________________________________________
Greg Anderson                                 greg@PlanetBeagle.com 



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Email: anlinwei@vip.sina.com          http://gzcj.blogone.net/
ַɽô԰9E



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On Thu, Jul 31, 2003 at 04:45:41PM -0700, Greg Anderson wrote:
> Hi all,
> 
> I'm sure this is a FAQ, but I didn't find an answer anywhere in the archives.
> 
> I've just installed Debian 3.0 (woody) on my venerable HP 715/50.  The install went flawlessly and easily (great kudos to all involved in the hppa port!)
> 
> Now I'm envious of all you hppa Linux old-timers who are running Gnome, and I'm trying to load the X windows stuff.  I tried installing X Windows and Desktop System from tasksel, and I also tried installing X Windows "by hand" using apt-get.  Either way, the install will not complete, saying that twm cannot be installed.
> 
> When I try to install twm, I get:
> 
> # apt-get install twm
> Reading Package Lists... Done
> Building Dependency Tree... Done
> Some packages could not be installed. This may mean that you have
> requested an impossible situation or if you are using the unstable
> distribution that some required packages have not yet been created
> or been moved out of Incoming.
> 
> Since you only requested a single operation it is extremely likely that
> the package is simply not installable and a bug report against
> that package should be filed.
> The following information may help to resolve the situation:
> 
> Sorry, but the following packages have unmet dependencies:
>   twm: Depends: menu (> 1.5) but it is not installable
> E: Sorry, broken packages
> 
> 
> When I look around for the menu package, it's nowhere to be found.
> 
> What to do?  Do you all install XFree86 from its own distribution, bypassing the .deb files?

Well, it's twm that has the problem, not XFree86.  Maybe we don't use
twm.  Looks like menu is indeed not in woody, but is in sarge and sid;
iirc it is a c++ program that we used to have trouble building.

Richard



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To: "E. Pavletic" <Enzo.Pavletic@guest.arnes.si>
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hi,

On Fri, Aug 01, 2003 at 12:04:12PM +0200, E. Pavletic wrote:
> Hi Alex,

nice to meet you :-)

> 
> I've got an apollo 9000 series 735/90 and now I'm experiencing a problem
> like yours: when I try to switch the power on, the leds flash up for a
> part of a second and then it's dead again.
> I have no idea what's the matter.

when it starts blinking for less than a second, try pushing the button
again and again and keeping it in the middle of being pushed.
this way you shortcircuit the logic but do not turn it off again!
> 
> I've looked on the Internet, but there I've found discordant opinions:
> someone says that the problem is in the power supply, others (like you)
> that it is in the power switch instead.

the power switch was not the problem.
the power suply has gone bad.
a new costs around 150 euro :-(


> 
> Would you be so kind as to tell me how you resolved the problem and
> what's the real reason of this failure, if you know it?

as said, the power supply has gone bad and i did not find a way other
than replacing it...
www.gall.de

> 
> Thanks
> enzo

HTH,

Alex
> 
> 
> # From: Alexander Gabert <pappy@nikita.ath.cx>
> # Date: Fri, 10 May 2002 22:37:45 +0200
> 
> > hi fellows,
> >
> > tonight i ran into a major problem: one of my two hp workstations is
> > having problems with the power on switch:
> 
> > the button must be pushed and tricked more than 5 times to turn the
> > machine on (led's blink only for a second when you push the button
> > once).  i did not mind and just did not turn the machine off :-)
> >
> > but now, i have the problem that the machine runs for 5-6 minutes and
> > then suddenly powers off itself.
> >
> > i really suppose it to be a problem with the A1094-66541 PCBA Switch
> > that is the little power switch assembly behind the drive cage that is
> > connected to the leds with the small ribbon cable and connected to the
> > chassis backplane with a long cable.
> >
> > does someone of you (preferably in germany, or the best would be
> > munich) know somebody, who i may ask to get me such a part?
> >
> >
> > i am quite sure, that this PCB is generating the problems with
> > powering
> > on the machine and recently that it powers itself off.
> > some months ago i took the power switch PCB from my second machine and
> > put it into this one and the PCB worked, but i need it for the other
> > machine of course, which happens to be the web/mail server from which
> > i am currently writing and receiving my mails.
> >
> > thank you in advance for any help to get this machine up and running
> > again...
> >
> > alex
> 

-- 
A long-forgotten loved one will appear soon.

Buy the negatives at any price.


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From: "Beerse, Corne" <c.beerse@torex-hiscom.nl>
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Subject: [parisc-linux] testing HP-PA risc hardware
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This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.

------_=_NextPart_001_01C35839.54B564E0
Content-Type: text/plain

Hi,

Here I have an HP D370 machine that (during my holidays) crashed. Since the
machine was replaced since long and only kept running for fast access to old
stuff, not a real problem.

At first, we suspected the boot disk since its led keeps buring. However,
booting HP-UX from CDRom for a new fresh install, the boot of the kernel
crashes at roughly the same point, even with all disks removed. Hence we
suspected the core memory. However, changing or replacing the memory does
not change anything in the behavoure.

Is there a way to somehow test the hardware of a PA-Risc machine? Either
from HP or from the linux world?

Kind of like the test tools as found on the (intel-) linux distributions?

btw: I can get debian-woody booted up to the message that if this is the
last message on screen, check the faq. A second terminal (HP 700/96) on tty1
shows a lot of (vt100?) junk. How can I either put the HP700/96 terminal in
VT100 mode or whats the magic name of this terminal in the 'TERM=...' kernel
parameter?



CBee


mailto:c.beerse@torex-hiscom.nl

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
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<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2654.45">
<TITLE>testing HP-PA risc hardware</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>Hi,</FONT>
</P>

<P><FONT SIZE=3D2>Here I have an HP D370 machine that (during my =
holidays) crashed. Since the machine was replaced since long and only =
kept running for fast access to old stuff, not a real =
problem.</FONT></P>

<P><FONT SIZE=3D2>At first, we suspected the boot disk since its led =
keeps buring. However, booting HP-UX from CDRom for a new fresh =
install, the boot of the kernel crashes at roughly the same point, even =
with all disks removed. Hence we suspected the core memory. However, =
changing or replacing the memory does not change anything in the =
behavoure.</FONT></P>

<P><FONT SIZE=3D2>Is there a way to somehow test the hardware of a =
PA-Risc machine? Either from HP or from the linux world?</FONT>
</P>

<P><FONT SIZE=3D2>Kind of like the test tools as found on the (intel-) =
linux distributions?</FONT>
</P>

<P><FONT SIZE=3D2>btw: I can get debian-woody booted up to the message =
that if this is the last message on screen, check the faq. A second =
terminal (HP 700/96) on tty1 shows a lot of (vt100?) junk. How can I =
either put the HP700/96 terminal in VT100 mode or whats the magic name =
of this terminal in the 'TERM=3D...' kernel parameter?</FONT></P>
<BR>
<BR>

<P><FONT SIZE=3D2>CBee</FONT>
</P>
<BR>

<P><FONT SIZE=3D2><A =
HREF=3D"mailto:c.beerse@torex-hiscom.nl">mailto:c.beerse@torex-hiscom.nl=
</A></FONT>
</P>

</BODY>
</HTML>
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On Fri, 2003-08-01 16:29:35 +0200, Beerse, Corne <c.beerse@torex-hiscom.nl>
wrote in message <03Aug1.164945cest.119089@ns.hiscom.nl>:
> At first, we suspected the boot disk since its led keeps buring. However,
> booting HP-UX from CDRom for a new fresh install, the boot of the kernel
> crashes at roughly the same point, even with all disks removed. Hence we
> suspected the core memory. However, changing or replacing the memory does
> not change anything in the behavoure.

HP machines do quite some checks on their own on power-up (if you don't
configure them to omit these) and you can get all that from the
INformation (IIRC) command.

I have upgraded one of my boxes these days and a RAM module wasn't
mounted properly. That was reported, as well as it's position:)

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
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k!
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Hello,


> Is there a way to somehow test the hardware of a PA-Risc machine? Either
> from HP or from the linux world?

Onto HP CD Support plus you would be able to boot ODE (Offline Diagnostics
Environement) which would allow to test wour disk and also help you to recover
your system (be carefull, it is not easy)

> btw: I can get debian-woody booted up to
> the message that if this is the
...
> VT100 mode ...

VT100 works fine for me :-)

hth,
    Joel


------------------------------------------------------
Soldes Tiscali ADSL : 27,50 euros/mois jusque fin 2003.
On s'habitue vite  payer son ADSL moins cher!
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On Fri, Aug 01, 2003 at 10:05:33AM +0100, Richard Hirst wrote:
> Well, it's twm that has the problem, not XFree86.  Maybe we don't use
> twm.

that's right. I use fvwm2 instead. A bit harder to configure but all
my parisc boxes have enough mem to handle workspaces.

> Looks like menu is indeed not in woody, but is in sarge and sid;
> iirc it is a c++ program that we used to have trouble building.

correct. For parisc, my preference is to run "sarge" since so much
stuff has been fixed since woody released.

hth,
grant


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Hi pa,

Can somebody help me to ci inot 2.4 this patch which backport ffs() needed
for new devmapper ;)

--- bitops.h.orig	2003-08-01 15:25:02.000000000 +0200
+++ bitops.h	2003-08-01 15:27:38.000000000 +0200
@@ -208,13 +208,34 @@
 
 #ifdef __KERNEL__
 
+/**
+ * __ffs - find first bit in word.
+ * @word: The word to search
+ *
+ * Undefined if no bit exists, so code should check against 0 first.
+ */
+static __inline__ unsigned long __ffs(unsigned long word)
+{
+	unsigned long result = 0;
+
+	while (!(word & 1UL)) {
+		result++;
+		word >>= 1;
+	}
+	return result;
+}
+
 /*
  * ffs: find first bit set. This is defined the same way as
  * the libc and compiler builtin ffs routines, therefore
  * differs in spirit from the above ffz (man ffs).
  */

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Hi pa,

>Can somebody help me to ci inot 2.4 this patch which backport ffs() needed
>for new devmapper ;)

Again I forget to attach the patch file, sorry.

    Joel

PS: Now I have an ADSL connection at home, may be could I now ask an account
to ci those kind of armless stuff

------------------------------------------------------
Soldes Tiscali ADSL : 27,50 euros/mois jusque fin 2003.
On s'habitue vite  payer son ADSL moins cher!
Plus d'info? Cliquez ici... http://reg.tiscali.be/default.asp?lg=fr 



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On Fri, 2003-08-01 at 10:28, Joel Soete wrote:
> Can somebody help me to ci inot 2.4 this patch which backport ffs() needed
> for new devmapper ;)

Actually, this patch looks decidedly non-optimal.

See include/linux/bitops.h:generic_ffs for how it should be done on
architectures that don't have any machine instruction help.  That's only
four if statements and no loop.

I see we already have the loop thing in 2.5, but should we consider
simply using the generic operations there as well?

even for __ffs, which is just a slight optimisation over ffs, using
generic_ffs would probably be faster

James




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From: lamont@smallone.fc.hp.com (LaMont Jones)
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Subject: [parisc-linux] __arch__swab24()
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The following patch implements __arch__swab24() optimally for hppa.

It also has the side effect of making some other things happier. :-)

Any comments before I commit it to 2.4 and 2.5?

lamont

Index: include/asm-parisc/byteorder.h
===================================================================
RCS file: /var/cvs/linux/include/asm-parisc/byteorder.h,v
retrieving revision 1.7
diff -u -r1.7 byteorder.h
--- include/asm-parisc/byteorder.h	8 Jul 2003 16:50:09 -0000	1.7
+++ include/asm-parisc/byteorder.h	1 Aug 2003 16:25:00 -0000
@@ -14,6 +14,17 @@
 	return x;
 }
 
+static __inline__ __const__ __u32 ___arch__swab24(__u32 x)
+{
+	unsigned int temp;
+	__asm__("shd %0, %0, 8, %1\n\t"		/* shift xabcxabc -> cxab */
+		"dep %1, 15, 8, %1\n\t"		/* deposit cxab -> cbab */
+		"shd %r0, %1, 8, %0"		/* shift 0000cbab -> 0cba */
+		: "=r" (x), "=&r" (temp)
+		: "0" (x));
+	return x;
+}
+
 static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
 {
 	unsigned int temp;
@@ -63,6 +74,7 @@
 #endif
 
 #define __arch__swab16(x) ___arch__swab16(x)
+#define __arch__swab24(x) ___arch__swab24(x)
 #define __arch__swab32(x) ___arch__swab32(x)
 
 #endif /* __GNUC__ */


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Subject: Re: [parisc-linux] __arch__swab24()
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On Fri, Aug 01, 2003 at 10:22:55AM -0600, LaMont Jones wrote:
> Any comments before I commit it to 2.4 and 2.5?

Here's what I came up with based on your patch.  It's embedded in a
test program.

#include <stdio.h>

typedef int __u32;

static int vanilla_swab24(int i)
{
        return ((i & 0xff) << 16) | (i & 0xff00) | ((i & 0xff0000) >> 16);
}

static __inline__ __const__ __u32 ___arch__swab24(__u32 x)
{
        __asm__("shd %0, %0, 8, %0\n\t"         /* shift xabcxabc -> cxab */
                "dep %0, 15, 8, %0\n\t"         /* deposit cxab -> cbab */
                "shd %%r0, %0, 8, %0"           /* shift 0000cbab -> 0cba */
                : "=r" (x)
                : "0" (x));
        return x;
}

int main(void)
{
        int i; 
        for (i = 0; i < 0x1ffffff; i++) { 
                if (___arch__swab24(i) != vanilla_swab24(i))
                        printf("Problem with i = %d\n", i);
        }
        return 0;
}


-- 
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> Actually, this patch looks decidedly non-optimal.

> See include/linux/bitops.h:generic_ffs for how it should be done on
> architectures that don't have any machine instruction help.  That's only
> four if statements and no loop.

Yes it was like this (just a lake of #include <linux/bitops.h>) into 2.4

Why was it is changed in 2.5?

> I see we already have the loop thing in 2.5, but should we consider
> simply using the generic operations there as well?

> even for __ffs, which is just a slight optimisation over ffs, using
> generic_ffs would probably be faster

If I have time next week I can test your idea.

Thanks,
    Joel


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On Fri, Aug 01, 2003 at 07:09:37PM +0200, Joel Soete wrote:
> > Actually, this patch looks decidedly non-optimal.

Here's a more optimal ffs() routine for hppa, along with the
output from the test program...  Should run in ~15 states on
just about anything [yes, it's that lock-stepped that it'll
take about 15 states on PA-8000's as well.. :-(]

Freshly coded, since the hp-ux version (which I can't find
anymore) looked for most significant set bit, not least.

lamont

#include <stdio.h>

int fastffs(int x)
{
	int ret;
	__asm__(" ldi		31,%1\n"
		" extru,<>	%0,31,16,%%r0\n"
		" extru,TR	%0,15,16,%0\n"
		" addi		-16,%1,%1\n"
		" extru,<>	%0,31,8,%%r0\n"
		" extru,TR	%0,23,8,%0\n"
		" addi		-8,%1,%1\n"
		" extru,<>	%0,31,4,%%r0\n"
		" extru,TR	%0,27,4,%0\n"
		" addi		-4,%1,%1\n"
		" extru,<>	%0,31,2,%%r0\n"
		" extru,TR	%0,29,2,%0\n"
		" addi		-2,%1,%1\n"
		" extru,=	%0,31,1,%%r0\n"
		" addi		-1,%1,%1\n"
		: "=r" (x), "=r" (ret)
		: "0" (x), "1" (ret));
	return ret;
}
doffs(x)
{
	printf("fastffs(%x)==%d\n",x,fastffs(x));
}
main()
{
	int i;
	for (i=0;i<5;i++)
		doffs(i);
	for (;i;i<<=1)
		doffs(i);
}


ffs(0)==31
ffs(1)==0
ffs(2)==1
ffs(3)==0
ffs(4)==2
ffs(5)==0
ffs(a)==1
ffs(14)==2
ffs(28)==3
ffs(50)==4
ffs(a0)==5
ffs(140)==6
ffs(280)==7
ffs(500)==8
ffs(a00)==9
ffs(1400)==10
ffs(2800)==11
ffs(5000)==12
ffs(a000)==13
ffs(14000)==14
ffs(28000)==15
ffs(50000)==16
ffs(a0000)==17
ffs(140000)==18
ffs(280000)==19
ffs(500000)==20
ffs(a00000)==21
ffs(1400000)==22
ffs(2800000)==23
ffs(5000000)==24
ffs(a000000)==25
ffs(14000000)==26
ffs(28000000)==27
ffs(50000000)==28
ffs(a0000000)==29
ffs(40000000)==30
ffs(80000000)==31


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>> On Fri, Aug 01, 2003 at 10:22:55AM -0600, LaMont Jones wrote:
>> Any comments before I commit it to 2.4 and 2.5?
>
>Here's what I came up with based on your patch.  It's embedded in a
>test program.

[...]

? no pb on my b180 (32bits kernel 2.4.21-pa6)

Joel


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>Here's a more optimal ffs() routine for hppa, along with the
>output from the test program...  Should run in ~15 states on
>just about
> anything [yes, it's that lock-stepped that it'll
>take about 15 states on PA-8000's as well.. :-(]
>
>Freshly coded, since the hp-ux version (which I can't find
>anymore) looked for most significant set bit, not least.

Thanks, I will test it on next week,

Joel


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On Fri, 2003-08-01 at 12:14, LaMont Jones wrote:
> ffs(0)==31
> ffs(1)==0
> ffs(2)==1
> ffs(3)==0
> ffs(4)==2
> ffs(80000000)==31

This is off by one.  The definition should say

ffs(0) == 0
ffs(1) == 1
ffs(2) == 2
ffs(4) == 3
...
ffs(0x80000000) == 32

i.e. it returns the first set bit starting counting at one. (Yes, I know
it's confusing, it's tripped me up, especially as ffz counts bits from
zero.  However, ffs is a BSD standard).

Most arch's start by defining an __ffs which is not defined for the zero
case and then build the real ffs from that.

James





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On Fri, Aug 01, 2003 at 10:22:46AM -0700, Greg Anderson wrote:
> At 09:22 AM 8/1/2003 -0600, you wrote:
> >correct. For parisc, my preference is to run "sarge" since so much
> >stuff has been fixed since woody released.
> 
> Thanks for the reply.  Now can you tell me how to obtain "sarge."
> Geez, I really *am* a n00bie! ;-)

edit /etc/apt/sources.list and substitute "sarge" for "stable".

then
	apt-get update
	apt-get dist-upgrade

You might to learn how to run dselect and run that as well.
it seems to do a better job with dependencies.

grant


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On Fri, 1 Aug 2003 17:44:07 -0600
Grant Grundler <grundler@parisc-linux.org> wrote:

> On Fri, Aug 01, 2003 at 10:22:46AM -0700, Greg Anderson wrote:
> > At 09:22 AM 8/1/2003 -0600, you wrote:
> > >correct. For parisc, my preference is to run "sarge" since so much
> > >stuff has been fixed since woody released.
> > 
> > Thanks for the reply.  Now can you tell me how to obtain "sarge."
> > Geez, I really *am* a n00bie! ;-)
> 
> edit /etc/apt/sources.list and substitute "sarge" for "stable".
> 
> then
> 	apt-get update
> 	apt-get dist-upgrade
> 
> You might to learn how to run dselect and run that as well.
> it seems to do a better job with dependencies.
> 

Hmm, if Greg wants to go from stable to sarge, he wants to substitute
"stable" for "sarge", or am I wrong ? :)

HTH,

Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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On Mon, 2003-07-28 16:30:14 +0200, Joel Soete <jsoe0708@tiscali.be>
wrote in message <3F056E95000057BB@ocpmta4.freegates.net>:
Hi!

> +
> +	.export __canonicalize_funcptr_for_compare
> +	.text
> +	/* http://lists.parisc-linux.org/hypermail/parisc-linux/10916.html
> +	**	GCC 3.3 and later has a new function in libgcc.a for
> +	**	comparing function pointers.
> +	*/
> +__canonicalize_funcptr_for_compare:
> +#ifdef __LP64__
> +	bve (%r2)
> +#else
> +	bv %r0(%r2)
> +#endif
> +	copy %r26,%r28

Is this now checked in? At my last cvs update
(:pserver:anonymous@cvs.parisc-linux.org/var/cvs, linux-2.5), this
hasn't shown up...

By the way, is anybody here going to go to Oldenburg(.de) to join the
developer's meeting[1]?

MfG, JBG
[1] http://oldenburger.linuxtage.de/devel.html

--=20
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From: Alexander Gabert <pappy@nikita.ath.cx>
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Subject: [parisc-linux] grsecurity 1.9.11 patches for 2.4.21pa8
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hi lists,

i just finished and tested the grsecurity porting of 1.9.11 to parisc.

http://nikita.ath.cx/users/pappy/grsecurity-parisc/parisc-linux-2.4.21-pa8-grsecurity-1.9.11.patch

it is supposed to be one of the last (if not the last) splitbrain grsecurity kernel patch to parisc-linux source.

Thanks to Randolph Chung (tausq), Matthew Wilcox (willy), pipacs, spender and all the other developers who helped me getting used to parisc-linux and the grsecurity patches, thus bridging the gap between the parisc-linux.org kernel and the vanilla tree for this security oriented linux patch.

i hope that 2.6.x will have parisc-linux melted into the mainstream kernel and thus grsecurity patches will apply natively to the kernel.

then this work will not be needed any more and i can sit back and relax.

thank you all,

Alex
-- 
A long-forgotten loved one will appear soon.
Buy the negatives at any price.


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Hi,
I just installed debian on my D250.
Those guys making the network install realy did a good job...
It almost worked out of the box. The only cullprit was that it
crashed on a bluefish FWD scsi controller not having any
terminators on the bus...

Allright,
But now I see this A4308A, a real surprising card, and what I
find more surprising is that I did not find it on the
mailinglist.
The card is an EISA card, which contains a PLX EISA9032, probably
an EISA to PCI bridge (and not v.v.!), an intel 82556, and an LSI
L5A4242. I can understand the plx and the intel, but the LSI?
If I search for these items, I find some 3com EISA cards with the
LSI L5A4242 for sale, not mentioning the intel etc. ...
So I reckon the LSI should be some kind of processor?
I've got some pictures of it (in a few hours actually, my
upstream is not that big):
http://nerdcentral.nerdnet.nl/~avb/2003-08-04.00/

Things I want:
- Any confirmation that it is not supported yet. (Eh, and of
  course that I am not making a fool of myself because I could
  have RTFMd :-) ).
- Anyone with docs on the 3com card.
- If possible on the A4308A card.
- PLX EISA9032, I cannot find it on www.plxtech.com...

And thanks for giving me the pleasure for having an hp9000 :-)
-- 
mail          up  260+18:54,     8 users,  load 0.00, 0.19, 0.93
mistar1     down   29+18:54
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From: "Lev Assinovsky" <LAssinovsky@algorithm.aelita.com>
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Subject: [parisc-linux] Help: Need instruction sequence for gdb breakpoint
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Hello all!
I badly need pa-risc 1.1 instruction sequence suitable for gdb.
I would like to implement "hard breakpoint".=20
I tried "BREAK 4,8" - gdb stops but can't continue.
Any help will be appreciated!

Sincerely,=20
----
Lev Assinovsky
Aelita Software Corporation
O&S Core Division, Programmer
ICQ# 165072909



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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: Re: [parisc-linux] backport bitops.h stuff
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Hi pa,

Here is a combine test case:

#include <stdio.h>

/**
 * __ffs - find first bit in word.
 * @word: The word to search
 *
 * Undefined if no bit exists, so code should check against 0 first.
 */
/* static __inline__ unsigned long ffs26(unsigned long word) */
unsigned long ffs_hppa26(unsigned long word)
{
        unsigned long result = 0;

        if (word)
/* I add this exception condition */
            while (!(word & 1UL)) {
                    result++;
                    word >>= 1;
            }
        return result;
}
/*
 * ffs: find first bit set. This is defined the same way as
 * the libc and compiler builtin ffs routines, therefore
 * differs in spirit from the above ffz (man ffs).
 */

static inline int generic_ffs(int x)
{
        int r = 1;

        if (!x)
                return 0;
        if (!(x & 0xffff)) {
                x >>= 16;
                r += 16;
        }
        if (!(x & 0xff)) {
                x >>= 8;
                r += 8;
        }
        if (!(x & 0xf)) {
                x >>= 4;
                r += 4;
        }
        if (!(x & 3)) {
                x >>= 2;
                r += 2;
        }
        if (!(x & 1)) {
                x >>= 1;
                r += 1;
        }
        return r;
}

int fastffs(int x)
{
  int ret=0;
  __asm__(" ldi    31,%1\n"
    " extru,<>  %0,31,16,%%r0\n"
    " extru,TR  %0,15,16,%0\n"
    " addi    -16,%1,%1\n"
    " extru,<>  %0,31,8,%%r0\n"
    " extru,TR  %0,23,8,%0\n"
    " addi    -8,%1,%1\n"
    " extru,<>  %0,31,4,%%r0\n"
    " extru,TR  %0,27,4,%0\n"
    " addi    -4,%1,%1\n"
    " extru,<>  %0,31,2,%%r0\n"
    " extru,TR  %0,29,2,%0\n"
    " addi    -2,%1,%1\n"
    " extru,=  %0,31,1,%%r0\n"
    " addi    -1,%1,%1\n"
    : "=r" (x), "=r" (ret)
    : "0" (x), "1" (ret));

  return ret;
}

doffs(x)
{
  printf("fastffs(%d)==%d\n",x,fastffs(x));
  printf("ffs_hppa26(%d)==%d\n",x,ffs_hppa26(x));
  printf("generic_ffs(%d)==%d\n",x,generic_ffs(x));
  printf("\n");
}

main()
{
  int i;
  for (i=0;i<5;i++)
    doffs(i);
  for (;i;i<<=1)
    doffs(i);
}

And I am confused by results:

fastffs(0)==31
ffs_hppa26(0)==0
generic_ffs(0)==0

I presume that we also have to consider an exception for 0?

[...]
fastffs(1)==0
ffs_hppa26(1)==0
generic_ffs(1)==1

fastffs(2)==1
ffs_hppa26(2)==1
generic_ffs(2)==2

fastffs(3)==0
ffs_hppa26(3)==0
generic_ffs(3)==1

fastffs(4)==2
ffs_hppa26(4)==2
generic_ffs(4)==3

[...]

So in all other case fastffs or ffs_hppa26 == generic_ffs - 1.
What is right?

Thanks for additional attention,
    Joel


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On Mon, Aug 04, 2003 at 12:43:10PM +0200, Joel Soete wrote:
>   int ret=0;
>   __asm__(" ldi    31,%1\n"

Make it say 32,%1...  Mistake in understanding things on my part...

> And I am confused by results:
> fastffs(0)==31
> ffs_hppa26(0)==0
> generic_ffs(0)==0
> 
> I presume that we also have to consider an exception for 0?

yes.

lamont


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Subject: Re: [parisc-linux] backport bitops.h stuff
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Xref: news.gmane.org gmane.linux.ports.parisc:19089

Let me try to clarify, since there are two differently defined macros in
the kernel (off by one) that would appear to have the same interface,
but which in fact have different semantics (I know, recipe for
disaster):  ffs and ffz (meaning find first set and find first zero).

Both tend to have machine code implementations for architectures that
support them.  The difference is that ffz counts bit zero as zero, but
ffz counts bit zero as one.

They also have different requirements for the error case (no bit set for
ffs and no bit zero for ffz).  For ffs, this is defined to be 32.  For
ffz, this is undefined.

The reason for all of this is that on x86 there is an instruction bsfl
that actually finds first set bit (but counting from zero, not one), but
the O(1) scheduler needed to find clear bits for the arrays, so ffz was
implemented as the complement of this.

ffs has been around a long time (inherited from BSD).  The differing
semantics are because "damnit, computers count from zero not one for
fast operations".

i.e.

ffs(0) == 0
ffz(0) == 0

ffs(1) == 1
ffz(~1) == 0  (same as above ffz, bit zero clear)

ffs(2) == 2
ffz(~3) == 1

[...]

ffs(0x8000000) == 32
ffz(0x7ffffff) == 31

ffz(0xffffffff) == could be anything

Some machine architectures have an __ffs() (usually mirroring a machine
instruction) whose semantics are identical to ffs() except that it also
is undefined in the error case (so ffs can simply be implemented as if
not error case, do __ffs()).

James




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Hi

it seems one of my scsi controllers broke down, so I need a new mobo. I
called a local supplier (Belgium) who told it costs 2500 euro for the
motherboard which includes also 2 processors.
Do you have to buy this with those processors? Isn't there any other
solution possible?

Thx guys
Mark



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Subject: Re: [parisc-linux] backport bitops.h stuff
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>>   int ret=0;
>>   __asm__(" ldi    31,%1\n"
>
>Make it say 32,%1...  Mistake in understanding things on my part...


Yes,

the following code:

int fastffs(int x)
{
  int ret=0;
  if (x)
    __asm__(" ldi    32,%1\n"
      " extru,<>  %0,31,16,%%r0\n"
      " extru,TR  %0,15,16,%0\n"
      " addi    -16,%1,%1\n"
      " extru,<>  %0,31,8,%%r0\n"
      " extru,TR  %0,23,8,%0\n"
      " addi    -8,%1,%1\n"
      " extru,<>  %0,31,4,%%r0\n"
      " extru,TR  %0,27,4,%0\n"
      " addi    -4,%1,%1\n"
      " extru,<>  %0,31,2,%%r0\n"
      " extru,TR  %0,29,2,%0\n"
      " addi    -2,%1,%1\n"
      " extru,=  %0,31,1,%%r0\n"
      " addi    -1,%1,%1\n"
      : "=r" (x), "=r" (ret)
      : "0" (x), "1" (ret));

  return ret;
}

give now the same results as generic_ffs:

fastffs(0)==0
generic_ffs(0)==0

fastffs(1)==1
generic_ffs(1)==1

fastffs(2)==2
generic_ffs(2)==2

fastffs(3)==1
generic_ffs(3)==1

fastffs(4)==3
generic_ffs(4)==3

fastffs(5)==1
generic_ffs(5)==1

fastffs(10)==2
generic_ffs(10)==2

fastffs(20)==3
generic_ffs(20)==3

fastffs(40)==4
generic_ffs(40)==4

fastffs(80)==5
generic_ffs(80)==5

fastffs(160)==6
generic_ffs(160)==6

fastffs(320)==7
generic_ffs(320)==7

fastffs(640)==8
generic_ffs(640)==8

fastffs(1280)==9
generic_ffs(1280)==9

fastffs(2560)==10
generic_ffs(2560)==10

fastffs(5120)==11
generic_ffs(5120)==11

fastffs(10240)==12
generic_ffs(10240)==12

fastffs(20480)==13
generic_ffs(20480)==13

fastffs(40960)==14
generic_ffs(40960)==14

fastffs(81920)==15
generic_ffs(81920)==15

fastffs(163840)==16
generic_ffs(163840)==16

fastffs(327680)==17
generic_ffs(327680)==17

fastffs(655360)==18
generic_ffs(655360)==18

fastffs(1310720)==19
generic_ffs(1310720)==19

fastffs(2621440)==20
generic_ffs(2621440)==20

fastffs(5242880)==21
generic_ffs(5242880)==21

fastffs(10485760)==22
generic_ffs(10485760)==22

fastffs(20971520)==23
generic_ffs(20971520)==23

fastffs(41943040)==24
generic_ffs(41943040)==24

fastffs(83886080)==25
generic_ffs(83886080)==25

fastffs(167772160)==26
generic_ffs(167772160)==26

fastffs(335544320)==27
generic_ffs(335544320)==27

fastffs(671088640)==28
generic_ffs(671088640)==28

fastffs(1342177280)==29
generic_ffs(1342177280)==29

fastffs(-1610612736)==30
generic_ffs(-1610612736)==30

fastffs(1073741824)==31
generic_ffs(1073741824)==31

fastffs(-2147483648)==32
generic_ffs(-2147483648)==32


Great job. If everybody agreed could you ci (I have no cvs ci access).
Or do you need a more accurate patch?

Thanks,
    Joel


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Subject: Re: [parisc-linux] backport bitops.h stuff
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James,

Many thanks for those clear explanation,

Joel

> -- Original Message --
> From: James Bottomley <James.Bottomley@steeleye.com>
> To: LaMont Jones <lamont@hp.com>
> Cc: Joel Soete <jsoe0708@tiscali.be>, parisc-linux@parisc-linux.org
> Date: 04 Aug 2003 11:08:01 -0500
> Subject: Re: [parisc-linux] backport bitops.h stuff
> 
> 
> Let me try to clarify, since there are two differently defined macros in
the kernel (off by one) that would appear to have the same interface,
but which in fact have different semantics (I know, recipe for
disaster):  ffs and ffz (meaning find first
> set and find first zero).

Both tend to have machine code implementations for architectures that
support them.  The difference is that ffz counts bit zero as zero, but
ffz counts bit zero as one.

They also have different requirements for the err
> r case (no bit set for
ffs and no bit zero for ffz).  For ffs, this is defined to be 32.  For
ffz, this is undefined.

The reason for all of this is that on x86 there is an instruction bsfl
that actually finds first set bit (but counting from zero
>  not one), but
the O(1) scheduler needed to find clear bits for the arrays, so ffz was
implemented as the complement of this.

ffs has been around a long time (inherited from BSD).  The differing
semantics are because "damnit, computers count from
> zero not one for
fast operations".

i.e.

ffs(0) == 0
ffz(0) == 0

ffs(1) == 1
ffz(~1) == 0  (same as above ffz, bit zero clear)

ffs(2) == 2
ffz(~3) == 1

[...]

ffs(0x8000000) == 32
ffz(0x7ffffff) == 31

ffz(0xffffffff) == could be
> anything

Some machine architectures have an __ffs() (usually mirroring a machine
instruction) whose semantics are identical to ffs() except that it also
is undefined in the error case (so ffs can simply be implemented as if
not error case, do __f
> s()).

James


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From: Adam Henson <adam@the-sugarat.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C200 Booting Difficulties
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Hello All,

   I have recently attempted to boot a debian-hppa cd on my C200 
workstation. All seems to go well and the kernel boots, but just after 
it says that init is starting up the screen goes blank, all the lights 
on the case come on, and the system just hangs.

Is there anything I can try to get round this?

  many thanks,

    Adam



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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.5 grundler
Date: Mon, 4 Aug 2003 23:18:52 -0600
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On Mon, Aug 04, 2003 at 11:15:38PM -0600, Grant Grundler wrote:
> Log message:
> 2.6.0-test2-pa6  Forward port 2.4.21 fixes
> 
> o add probe_irq_mask() (Arnaldo Del Melo)
> o add __canonicalize_funcptr_for_compare() (me)
> o add hppa to list of arches for "MMAPIO" in aic7xxx (me)
> o break build if get/put_user/kernel are abused (Joel Soete)

Trying to keep willy happy :^)
Thanks to Arnaldo/Joel for patches.

grant


Index: Makefile
===================================================================
RCS file: /var/cvs/linux-2.5/Makefile,v
retrieving revision 1.144
diff -u -p -r1.144 Makefile
--- Makefile	2 Aug 2003 21:50:59 -0000	1.144
+++ Makefile	5 Aug 2003 05:10:27 -0000
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 0
-EXTRAVERSION = -test2-pa5
+EXTRAVERSION = -test2-pa6
 
 # *DOCUMENTATION*
 # To see a list of typical targets execute "make help"
Index: arch/parisc/Kconfig
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/Kconfig,v
retrieving revision 1.23
diff -u -p -r1.23 Kconfig
--- arch/parisc/Kconfig	14 Jul 2003 12:32:20 -0000	1.23
+++ arch/parisc/Kconfig	5 Aug 2003 05:10:27 -0000
@@ -186,7 +186,7 @@ source "drivers/scsi/Kconfig"
 
 source "drivers/md/Kconfig"
 
-#source drivers/message/fusion/Kconfig
+source drivers/message/fusion/Kconfig
 
 #source drivers/ieee1394/Kconfig
 
Index: arch/parisc/kernel/irq.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/irq.c,v
retrieving revision 1.19
diff -u -p -r1.19 irq.c
--- arch/parisc/kernel/irq.c	5 May 2003 21:34:24 -0000	1.19
+++ arch/parisc/kernel/irq.c	5 Aug 2003 05:10:27 -0000
@@ -842,6 +842,10 @@ int probe_irq_off(unsigned long val)
 	return irq_found;
 }
 
+unsigned int probe_irq_mask(unsigned long irqs)
+{
+	return 0;
+}
 
 void __init init_IRQ(void)
 {
Index: arch/parisc/kernel/parisc_ksyms.c
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/parisc_ksyms.c,v
retrieving revision 1.21
diff -u -p -r1.21 parisc_ksyms.c
--- arch/parisc/kernel/parisc_ksyms.c	9 Jun 2003 02:24:25 -0000	1.21
+++ arch/parisc/kernel/parisc_ksyms.c	5 Aug 2003 05:10:27 -0000
@@ -37,6 +37,7 @@ EXPORT_SYMBOL(get_pci_node_path);
 #include <asm/irq.h>
 EXPORT_SYMBOL(enable_irq);
 EXPORT_SYMBOL(disable_irq);
+EXPORT_SYMBOL(probe_irq_mask);
 
 #include <asm/processor.h>
 EXPORT_SYMBOL(kernel_thread);
@@ -200,6 +201,9 @@ EXPORT_SYMBOL(__ashrdi3);
 EXPORT_SYMBOL(__ashldi3);
 EXPORT_SYMBOL(__lshrdi3);
 EXPORT_SYMBOL(__muldi3);
+
+asmlinkage void * __canonicalize_funcptr_for_compare(void *);
+EXPORT_SYMBOL_NOVERS(__canonicalize_funcptr_for_compare);
 
 #ifdef __LP64__
 extern void __divdi3(void);
Index: arch/parisc/kernel/real2.S
===================================================================
RCS file: /var/cvs/linux-2.5/arch/parisc/kernel/real2.S,v
retrieving revision 1.4
diff -u -p -r1.4 real2.S
--- arch/parisc/kernel/real2.S	14 Jul 2003 15:21:07 -0000	1.4
+++ arch/parisc/kernel/real2.S	5 Aug 2003 05:10:27 -0000
@@ -275,6 +275,7 @@ r64_ret:
 	nop
 
 #endif
+
 	.export pc_in_user_space
 	.text
 	/* Doesn't belong here but I couldn't find a nicer spot. */
@@ -283,3 +284,17 @@ pc_in_user_space:
 	bv,n	0(%rp)
 	nop
 
+
+	.export __canonicalize_funcptr_for_compare
+	.text
+	/* http://lists.parisc-linux.org/hypermail/parisc-linux/10916.html
+	**	GCC 3.3 and later has a new function in libgcc.a for
+	**	comparing function pointers.
+	*/
+__canonicalize_funcptr_for_compare:
+#ifdef __LP64__
+	bve (%r2)
+#else
+	bv %r0(%r2)
+#endif
+	copy %r26,%r28
Index: drivers/scsi/aic7xxx/aic79xx_osm.h
===================================================================
RCS file: /var/cvs/linux-2.5/drivers/scsi/aic7xxx/aic79xx_osm.h,v
retrieving revision 1.9
diff -u -p -r1.9 aic79xx_osm.h
--- drivers/scsi/aic7xxx/aic79xx_osm.h	27 Jul 2003 19:55:52 -0000	1.9
+++ drivers/scsi/aic7xxx/aic79xx_osm.h	5 Aug 2003 05:10:28 -0000
@@ -590,7 +590,8 @@ ahd_delay(long usec)
 
 
 /***************************** Low Level I/O **********************************/
-#if defined(__powerpc__) || defined(__i386__) || defined(__ia64__)
+#if defined(__powerpc__) || defined(__i386__) || defined(__ia64__) \
+	|| defined(__hppa__)
 #define MMAPIO
 #endif
 
Index: include/asm-parisc/uaccess.h
===================================================================
RCS file: /var/cvs/linux-2.5/include/asm-parisc/uaccess.h,v
retrieving revision 1.7
diff -u -p -r1.7 uaccess.h
--- include/asm-parisc/uaccess.h	12 Jan 2003 08:24:26 -0000	1.7
+++ include/asm-parisc/uaccess.h	5 Aug 2003 05:10:29 -0000
@@ -28,6 +28,11 @@
  * that put_user is the same as __put_user, etc.
  */
 
+extern int __get_kernel_bad(void);
+extern int __get_user_bad(void);
+extern int __put_kernel_bad(void);
+extern int __put_user_bad(void);
+
 #define access_ok(type,addr,size)   (1)
 #define verify_area(type,addr,size) (0)
 
@@ -35,8 +40,8 @@
 #define get_user __get_user
 
 #if BITS_PER_LONG == 32
-#define LDD_KERNEL(ptr)		BUG()
-#define LDD_USER(ptr)		BUG()
+#define LDD_KERNEL(ptr) __get_kernel_bad();
+#define LDD_USER(ptr) __get_user_bad();
 #define STD_KERNEL(x, ptr) __put_kernel_asm64((u32)x,ptr)
 #define STD_USER(x, ptr) __put_user_asm64((u32)x,ptr)
 #else
@@ -72,7 +77,7 @@ struct exception_table_entry {
 	    case 2: __get_kernel_asm("ldh",ptr); break; \
 	    case 4: __get_kernel_asm("ldw",ptr); break; \
 	    case 8: LDD_KERNEL(ptr); break;		\
-	    default: BUG(); break;                      \
+	    default: __get_kernel_bad(); break;         \
 	    }                                           \
 	}                                               \
 	else {                                          \
@@ -81,7 +86,7 @@ struct exception_table_entry {
 	    case 2: __get_user_asm("ldh",ptr); break;   \
 	    case 4: __get_user_asm("ldw",ptr); break;   \
 	    case 8: LDD_USER(ptr);  break;		\
-	    default: BUG(); break;                      \
+	    default: __get_user_bad(); break;           \
 	    }                                           \
 	}                                               \
 							\
@@ -141,7 +146,7 @@ struct exception_table_entry {
 	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
 	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
 	    case 8: STD_KERNEL(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: __put_kernel_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 	else {                                                  \
@@ -150,7 +155,7 @@ struct exception_table_entry {
 	    case 2: __put_user_asm("sth",x,ptr); break;         \
 	    case 4: __put_user_asm("stw",x,ptr); break;         \
 	    case 8: STD_USER(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: __put_user_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 								\


From - Thu Nov 08 21:28:40 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] stale references to io_request_lock
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Xref: news.gmane.org gmane.linux.ports.parisc:19095

Willy,
your favorite scsi driver still has references to io_request_lock in
it's comments:
...
 *  The whole SCSI sub-system under Linux is basically single-threaded.
 *  Everything, including low-level driver interrupt routine, happens
 *  with the `io_request_lock' held.
...

I was looking at what else might not have been forward ported
and stumbled across this reference. Care to delete it?

thanks,
grant


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From: "Beerse, Corne" <c.beerse@torex-hiscom.nl>
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Subject: Summary: [HPADM][parisc-linux] testing HP-PA risc hardware
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I got several nice answers from both the HPAdmin and the PARisc-Linux lists.

The answer from Bill Hassell noted that is was most likely not a memory
problem, but a CPU problem. Since there are 2 of them inside the box, I
expect no problems with a single processor linux. I will be verry carefull
on installing smp linux...

Most of them pointed me to ODE (Offline Diagnostics Environement) on the
"Support Plus" cd that came with HP-UX.

The recipy on HP-UX machines:
- Boot from the CDRom
- Interact wit IPL: YES
- (set/read the current itme with CLKUTIL)
- ODE, then, at the ODE prompt:
  - ls for a list of tests and options
  - menu promisses to be a nice one
Unfortunatly, all is protected with a password and the password I got from
one of you did not match the distribution I have here ("HPUX 11.0, march
2001")

Meanwhile, I'm installing Debian linux on the box, without any hardware
bumps. In the HP-70096 terminal menu, I found the way to have it emulate
VT100 (called "EM100") (starting at the <user-system> button, left to <F5>).

Thanks.


Origional message:

Here I have an HP D370 machine that (during my holidays) crashed. Since the
machine was replaced since long and only kept running for fast access to old
stuff, not a real problem.

At first, we suspected the boot disk since its led keeps buring. However,
booting HP-UX from CDRom for a new fresh install, the boot of the kernel
crashes at roughly the same point, even with all disks removed. Hence we
suspected the core memory. However, changing or replacing the memory does
not change anything in the behavoure.

Is there a way to somehow test the hardware of a PA-Risc machine? Either
from HP or from the linux world? 

Kind of like the test tools as found on the (intel-) linux distributions? 

btw: I can get debian-woody booted up to the message that if this is the
last message on screen, check the faq. A second terminal (HP 700/96) on tty1
shows a lot of (vt100?) junk. How can I either put the HP700/96 terminal in
VT100 mode or whats the magic name of this terminal in the 'TERM=...' kernel
parameter?




CBee 


mailto:c.beerse@torex-hiscom.nl

------_=_NextPart_001_01C35B3F.48453BF0
Content-Type: text/html
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2654.45">
<TITLE>Summary: [HPADM][parisc-linux] testing HP-PA risc =
hardware</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2>I got several nice answers from both the HPAdmin and =
the PARisc-Linux lists.</FONT>
</P>

<P><FONT SIZE=3D2>The answer from Bill Hassell noted that is was most =
likely not a memory problem, but a CPU problem. Since there are 2 of =
them inside the box, I expect no problems with a single processor =
linux. I will be verry carefull on installing smp linux...</FONT></P>

<P><FONT SIZE=3D2>Most of them pointed me to ODE (Offline Diagnostics =
Environement) on the &quot;Support Plus&quot; cd that came with =
HP-UX.</FONT>
</P>

<P><FONT SIZE=3D2>The recipy on HP-UX machines:</FONT>
<BR><FONT SIZE=3D2>- Boot from the CDRom</FONT>
<BR><FONT SIZE=3D2>- Interact wit IPL: YES</FONT>
<BR><FONT SIZE=3D2>- (set/read the current itme with CLKUTIL)</FONT>
<BR><FONT SIZE=3D2>- ODE, then, at the ODE prompt:</FONT>
<BR><FONT SIZE=3D2>&nbsp; - ls for a list of tests and options</FONT>
<BR><FONT SIZE=3D2>&nbsp; - menu promisses to be a nice one</FONT>
<BR><FONT SIZE=3D2>Unfortunatly, all is protected with a password and =
the password I got from one of you did not match the distribution I =
have here (&quot;HPUX 11.0, march 2001&quot;)</FONT></P>

<P><FONT SIZE=3D2>Meanwhile, I'm installing Debian linux on the box, =
without any hardware bumps. In the HP-70096 terminal menu, I found the =
way to have it emulate VT100 (called &quot;EM100&quot;) (starting at =
the &lt;user-system&gt; button, left to &lt;F5&gt;).</FONT></P>

<P><FONT SIZE=3D2>Thanks.</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Origional message:</FONT>
</P>

<P><FONT SIZE=3D2>Here I have an HP D370 machine that (during my =
holidays) crashed. Since the machine was replaced since long and only =
kept running for fast access to old stuff, not a real =
problem.</FONT></P>

<P><FONT SIZE=3D2>At first, we suspected the boot disk since its led =
keeps buring. However, booting HP-UX from CDRom for a new fresh =
install, the boot of the kernel crashes at roughly the same point, even =
with all disks removed. Hence we suspected the core memory. However, =
changing or replacing the memory does not change anything in the =
behavoure.</FONT></P>

<P><FONT SIZE=3D2>Is there a way to somehow test the hardware of a =
PA-Risc machine? Either from HP or from the linux world? </FONT>
</P>

<P><FONT SIZE=3D2>Kind of like the test tools as found on the (intel-) =
linux distributions? </FONT>
</P>

<P><FONT SIZE=3D2>btw: I can get debian-woody booted up to the message =
that if this is the last message on screen, check the faq. A second =
terminal (HP 700/96) on tty1 shows a lot of (vt100?) junk. How can I =
either put the HP700/96 terminal in VT100 mode or whats the magic name =
of this terminal in the 'TERM=3D...' kernel parameter?</FONT></P>
<BR>
<BR>
<BR>

<P><FONT SIZE=3D2>CBee </FONT>
</P>
<BR>

<P><FONT SIZE=3D2><A =
HREF=3D"mailto:c.beerse@torex-hiscom.nl">mailto:c.beerse@torex-hiscom.nl=
</A></FONT>
</P>

</BODY>
</HTML>
------_=_NextPart_001_01C35B3F.48453BF0--


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From: Nahkola Mikko <mnahkola@trinms01.ntc.nokia.com>
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Subject: [parisc-linux] Terminfo/termcap for a 70096 ...
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I tried to ask this question in the comp.sys.hp.hpux newsgroup once but 
didn't get any useful answers... anyone here know better?

(yes, I know, this is probably specifically _not_ a problem on 
parisc-linux as all the parisc stuff is supposed to have a HP-UX license 
in the first place, for some version of HP-UX.)

Is it legal to copy terminfo and termcap entries (from HP-UX in this 
case)?

The problem is that HP-UX is pretty much the only thing that comes with a 
terminfo entry for a 70096, and we have a bunch of those that could be 
useful on other systems too ... except that the scrollback doesn't work 
in the emulation modes. 

It would therefore be better to be able to run in native mode, but this 
pretty much _requires_ the terminfo/termcap entry ... 

Oh, and about the cursor keys on the 70096, if I were to put them in the 
"application" mode, would that help with bash et al.? They seem to be 
working in swinstall and such on HP-UX ... but the default mode seems to 
be non-transmitting, right? (yes, I could use that too myself, and 
re-enter stuff from the buffer with the print/enter key and do the 
line-modify thing... but the others have a hard time learning that.)


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


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> -----Original Message-----
> From: Nahkola Mikko [mailto:mnahkola@trinms01.ntc.nokia.com]
> 
> I tried to ask this question in the comp.sys.hp.hpux newsgroup once but 
> didn't get any useful answers... anyone here know better?

The /etc/termcap file on a RedHat 7.3 machine does contain a bunch of HP
terminals, including 700 series like 700 44 and 700 92. I think the latter
one will suit your needs. There are even more. As far as I know, it all ends
in hpterm, the hp-terminal emulator (xterm equivalent) for X11 (vue) with
similar capabilities as the 700 series terminals.

Unfortunatly, while installing DebianWoody on a D370, I found none of them
in the terminfo database (and no termcap file). And the HP700/96 came with
the D370. I know one thing to do after finalizing the install....

> 
> (yes, I know, this is probably specifically _not_ a problem on 
> parisc-linux as all the parisc stuff is supposed to have a HP-UX license 
> in the first place, for some version of HP-UX.)
> 
> Is it legal to copy terminfo and termcap entries (from HP-UX in this 
> case)?

I don't think it is illegal to tune any system to use HP hardware with a
published interface and I think the manual of the terminal clearly publishes
the codes as used in the termcap or terminfo files.

> 
> The problem is that HP-UX is pretty much the only thing that comes with a 
> terminfo entry for a 70096, and we have a bunch of those that  could be 
> useful on other systems too ... except that the scrollback doesn't work 
> in the emulation modes. 

Some settings of $TERM that come to mind include 'hpterm', 'hp700',
'hp70092'. I recal I've used them between HP-UX and Solaris machines, hence
Solaris also might have suitable termcap or terminfo entries.

> 
> It would therefore be better to be able to run in native mode, but this 
> pretty much _requires_ the terminfo/termcap entry ... 
> 
> Oh, and about the cursor keys on the 70096, if I were to put 
> them in the 
> "application" mode, would that help with bash et al.? They seem to be 
> working in swinstall and such on HP-UX ... but the default 
> mode seems to 
> be non-transmitting, right? (yes, I could use that too myself, and 
> re-enter stuff from the buffer with the print/enter key and do the 
> line-modify thing... but the others have a hard time learning that.)

don't know, just put the terminal in em220 (vt220 emulation) mode to install
debian.





CBee

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<BODY>

<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: Nahkola Mikko [<A =
HREF=3D"mailto:mnahkola@trinms01.ntc.nokia.com">mailto:mnahkola@trinms01=
.ntc.nokia.com</A>]</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; I tried to ask this question in the =
comp.sys.hp.hpux newsgroup once but </FONT>
<BR><FONT SIZE=3D2>&gt; didn't get any useful answers... anyone here =
know better?</FONT>
</P>

<P><FONT SIZE=3D2>The /etc/termcap file on a RedHat 7.3 machine does =
contain a bunch of HP terminals, including 700 series like 700 44 and =
700 92. I think the latter one will suit your needs. There are even =
more. As far as I know, it all ends in hpterm, the hp-terminal emulator =
(xterm equivalent) for X11 (vue) with similar capabilities as the 700 =
series terminals.</FONT></P>

<P><FONT SIZE=3D2>Unfortunatly, while installing DebianWoody on a D370, =
I found none of them in the terminfo database (and no termcap file). =
And the HP700/96 came with the D370. I know one thing to do after =
finalizing the install....</FONT></P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; (yes, I know, this is probably specifically =
_not_ a problem on </FONT>
<BR><FONT SIZE=3D2>&gt; parisc-linux as all the parisc stuff is =
supposed to have a HP-UX license </FONT>
<BR><FONT SIZE=3D2>&gt; in the first place, for some version of =
HP-UX.)</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Is it legal to copy terminfo and termcap =
entries (from HP-UX in this </FONT>
<BR><FONT SIZE=3D2>&gt; case)?</FONT>
</P>

<P><FONT SIZE=3D2>I don't think it is illegal to tune any system to use =
HP hardware with a published interface and I think the manual of the =
terminal clearly publishes the codes as used in the termcap or terminfo =
files.</FONT></P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; The problem is that HP-UX is pretty much the =
only thing that comes with a </FONT>
<BR><FONT SIZE=3D2>&gt; terminfo entry for a 70096, and we have a bunch =
of those that&nbsp; could be </FONT>
<BR><FONT SIZE=3D2>&gt; useful on other systems too ... except that the =
scrollback doesn't work </FONT>
<BR><FONT SIZE=3D2>&gt; in the emulation modes. </FONT>
</P>

<P><FONT SIZE=3D2>Some settings of $TERM that come to mind include =
'hpterm', 'hp700', 'hp70092'. I recal I've used them between HP-UX and =
Solaris machines, hence Solaris also might have suitable termcap or =
terminfo entries.</FONT></P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; It would therefore be better to be able to run =
in native mode, but this </FONT>
<BR><FONT SIZE=3D2>&gt; pretty much _requires_ the terminfo/termcap =
entry ... </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Oh, and about the cursor keys on the 70096, if =
I were to put </FONT>
<BR><FONT SIZE=3D2>&gt; them in the </FONT>
<BR><FONT SIZE=3D2>&gt; &quot;application&quot; mode, would that help =
with bash et al.? They seem to be </FONT>
<BR><FONT SIZE=3D2>&gt; working in swinstall and such on HP-UX ... but =
the default </FONT>
<BR><FONT SIZE=3D2>&gt; mode seems to </FONT>
<BR><FONT SIZE=3D2>&gt; be non-transmitting, right? (yes, I could use =
that too myself, and </FONT>
<BR><FONT SIZE=3D2>&gt; re-enter stuff from the buffer with the =
print/enter key and do the </FONT>
<BR><FONT SIZE=3D2>&gt; line-modify thing... but the others have a hard =
time learning that.)</FONT>
</P>

<P><FONT SIZE=3D2>don't know, just put the terminal in em220 (vt220 =
emulation) mode to install debian.</FONT>
</P>
<BR>
<BR>
<BR>
<BR>

<P><FONT SIZE=3D2>CBee</FONT>
</P>

</BODY>
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On Tue, Aug 05, 2003 at 03:04:24PM +0200, "Beerse, Corn" wrote:
> Unfortunatly, while installing DebianWoody on a D370, I found none of them
> in the terminfo database (and no termcap file). And the HP700/96 came with
> the D370. I know one thing to do after finalizing the install....

Yeah, Debian doesn't have termcap, there's a document somewhere that
explains why.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: RE: [parisc-linux] Terminfo/termcap for a 70096 ...
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> -----Original Message-----
> From: Matthew Wilcox [mailto:willy@debian.org]
> Sent: dinsdag 5 augustus 2003 15:33
>=20
> On Tue, Aug 05, 2003 at 03:04:24PM +0200, "Beerse, Corn=E9" wrote:
> > Unfortunatly, while installing DebianWoody on a D370, I found none =
of
them
> > in the terminfo database (and no termcap file). And the HP700/96 =
came
with
> > the D370. I know one thing to do after finalizing the install....
>=20
> Yeah, Debian doesn't have termcap, there's a document somewhere that
> explains why.

I don't care if they use termcap or terminfo. It bothers me that they =
have
no HP700xx entry in there, not even in the pa-risc distribution. =
Specially
the pa-risc distro can find a 700xx terminal at its console so it would =
be
nice if the TERM boot parameter can be set to indicate a hp700 =
terminal.

On the other hand, I'm one of those sysadmins that can find its way =
around
and I expect most installations to PA-Risc will be a kind of freak or =
hacker
that can find a way. It is just a little uncomfortable.


CBee

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<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: Matthew Wilcox [<A =
HREF=3D"mailto:willy@debian.org">mailto:willy@debian.org</A>]</FONT>
<BR><FONT SIZE=3D2>&gt; Sent: dinsdag 5 augustus 2003 15:33</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; On Tue, Aug 05, 2003 at 03:04:24PM +0200, =
&quot;Beerse, Corn=E9&quot; wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; Unfortunatly, while installing DebianWoody =
on a D370, I found none of them</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; in the terminfo database (and no termcap =
file). And the HP700/96 came with</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; the D370. I know one thing to do after =
finalizing the install....</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Yeah, Debian doesn't have termcap, there's a =
document somewhere that</FONT>
<BR><FONT SIZE=3D2>&gt; explains why.</FONT>
</P>

<P><FONT SIZE=3D2>I don't care if they use termcap or terminfo. It =
bothers me that they have no HP700xx entry in there, not even in the =
pa-risc distribution. Specially the pa-risc distro can find a 700xx =
terminal at its console so it would be nice if the TERM boot parameter =
can be set to indicate a hp700 terminal.</FONT></P>

<P><FONT SIZE=3D2>On the other hand, I'm one of those sysadmins that =
can find its way around and I expect most installations to PA-Risc will =
be a kind of freak or hacker that can find a way. It is just a little =
uncomfortable.</FONT></P>
<BR>

<P><FONT SIZE=3D2>CBee</FONT>
</P>

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Subject: [parisc-linux] Re: mobo for J5600
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> Hi
> 
> it seems one of my scsi controllers broke down, so I need a new mobo. I
> called a local supplier (Belgium) who told it costs 2500 euro for the
> motherboard which includes also 2 processors.
> Do you have to buy this with those processors? Isn't there any other
> solution possible?
> 
> Thx guys
> Mark


You're very unlikely to find a motherboard (on its own) for sale on the secondary markets.

However 2500 euro is far too much. These days you can buy a replacement system for less than that. As an example see the following (expired) EBay auction:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3038140080&category=11221

Regards,

Gavin



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On Tue, Aug 05, 2003 at 03:04:24PM +0200, ext "Beerse, Corn" wrote:

> > From: Nahkola Mikko [mailto:mnahkola@trinms01.ntc.nokia.com]

> > I tried to ask this question in the comp.sys.hp.hpux newsgroup once but 
> > didn't get any useful answers... anyone here know better?
 
> The /etc/termcap file on a RedHat 7.3 machine does contain a bunch of HP
> terminals, including 700 series like 700 44 and 700 92. I think the latter
> one will suit your needs. There are even more. As far as I know, it all ends
> in hpterm, the hp-terminal emulator (xterm equivalent) for X11 (vue) with
> similar capabilities as the 700 series terminals.

Um. I don't have a RedHat here ... well, there's a close-enough copy that 
I could check.

Yes, the 70092 is probably close enough. Haven't run into any differences 
around here and we have a couple of those too.
 
> Unfortunatly, while installing DebianWoody on a D370, I found none of them
> in the terminfo database (and no termcap file). And the HP700/96 came with
> the D370. I know one thing to do after finalizing the install....

That'd be good to have, yes, and even better if the installer knew how to 
use it too. And I _did_ install the terminfo entry myself ... 

> > (yes, I know, this is probably specifically _not_ a problem on 
> > parisc-linux as all the parisc stuff is supposed to have a HP-UX license 
> > in the first place, for some version of HP-UX.)
> > 
> > Is it legal to copy terminfo and termcap entries (from HP-UX in this 
> > case)?
> 
> I don't think it is illegal to tune any system to use HP hardware with a
> published interface and I think the manual of the terminal clearly publishes
> the codes as used in the termcap or terminfo files.

The "User's Manual" (part no. 5959-5071) only seems to publish some of 
them, not all. It certainly doesn't say what the thing _transmits_ 
as control characters, and such ...

I haven't seen the "Reference Manual" anywhere. (5959-5072) That'd be the 
one to find, probably.

The c1099a User's Manual isn't any more help either.

> > The problem is that HP-UX is pretty much the only thing that comes with a 
> > terminfo entry for a 70096, and we have a bunch of those that  could be 
> > useful on other systems too ... except that the scrollback doesn't work 
> > in the emulation modes. 

> Some settings of $TERM that come to mind include 'hpterm', 'hp700',
> 'hp70092'. I recal I've used them between HP-UX and Solaris machines, hence
> Solaris also might have suitable termcap or terminfo entries.

I don't think I've managed to find them.

At least it doesn't get right by default on the things that I've tried. 
Not sure which ones I've tried them on, Sun, DEC/Compaq, IBM, whatever 
... at least everything seems to default to VT100 if they can't figure 
out what it is. Even HP-UX, occasionally.

> > Oh, and about the cursor keys on the 70096, if I were to put 
> > them in the 
> > "application" mode, would that help with bash et al.? They seem to be 
> > working in swinstall and such on HP-UX ... but the default 
> > mode seems to 
> > be non-transmitting, right? (yes, I could use that too myself, and 

> don't know, just put the terminal in em220 (vt220 emulation) mode to install
> debian.

I did. 

But it might be better if the Debian installer could be made to handle 
the native mode too.


-- 
Mikko Nahkola   <mikko.nahkola@nokia.com>
Tre-IN sysadmin <mnahkola@trein.ntc.nokia.com>


From - Thu Nov 08 21:28:40 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] lvm2 pb on hppa-linux
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Hi all,

Since the announce of lvm2 I used succefuly lvm tools (also with evms tools
before 1.9 ie evms-1.2.1) on my linux hppa box runing a last updated linux-2.4.21-pa8
(+ a very small hack to use generic_ffs()).

Now I try to install lvm2 and dm1.

I so recover last lvm-1.0.7. I configure it and build PATCHES which I apply
against kernel (without VFS-lock). Then I reboot it and install tools:
_no pb_ :-)

# vgdisplay --version
vgdisplay: Logical Volume Manager 1.0.7
Heinz Mauelshagen
 Sistina Software  28/03/2003 (IOP 10)

# vgdisplay -v
--- Volume group ---
VG Name               EvmsLvm
VG Access             read/write
VG Status             available/resizable
VG #                  0
MAX LV                256
Cur LV      
         2
Open LV               0
MAX LV Size           255.99 GB
Max PV                256
Cur PV                1
Act PV                1
VG Size               3.99 GB
PE Size               4 MB
Total PE              1022
Alloc PE / Size   
   896 / 3.50 GB
Free  PE / Size       126 / 504 MB
VG UUID               k7px10-qfN2-J3y0-fony-aczD-HLwn-ZnN9G3

--- Logical volume ---
LV Name                /dev/EvmsLvm/DebianRep
VG Name                EvmsLvm
LV Write Access        read/wri
e
LV Status              available
LV #                   1
# open                 0
LV Size                3 GB
Current LE             768
Allocated LE           768
Allocation             next free
Read ahead sectors     120
Block device    
      58:1

--- Logical volume ---
LV Name                /dev/EvmsLvm/JfsTst
VG Name                EvmsLvm
LV Write Access        read/write
LV Status              available
LV #                   2
# open                 0
LV Size          
     512 MB
Current LE             128
Allocated LE           128
Allocation             next free
Read ahead sectors     120
Block device           58:2


--- Physical volumes ---
PV Name (#)           /dev/sdc (1)
PV Status             avai
able / allocatable
Total PE / Free PE    1022 / 126

_no pb_ to mount and use usually the first lv (/dev/EvmsLvm/DebianRep)

#df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/md2               1700208   1086488    52735
  68% /
/dev/md0                123891     58924     58571  51% /boot
/dev/md3                247791    132508    102490  57% /var
/dev/md4                123827      4118    113316   4% /tmp
/dev/md5                123827     10339    107095   9% 
home
/dev/md6               2015696   1200328    794892  61% /usr/src
/dev/md7               2015696   1927752     67468  97% /Sources
/dev/md8               2015696   1612664    382556  81% /Develop
/dev/EvmsLvm/DebianRep
                       3096336   2926848    138032  96% /Debian

I so go further and patch kernel with dm/patches/devicemapper-ioctl.patch
(no VFS-lock) rebuild it wihtout any pb or warning (about dm part :-)) ).
I so install dmsetup tool and reboot with this kernel sucessfully (no pb
to discover vg and lv as lvm1 tools are still installed)

The dmsetup create well special file:
# ll /dev/mapper
total 28
drwxr-xr-x    2 root     root         4096 Aug  5 17:52 .
drwxr-xr-x    9 root     root        24576 Aug  5 16:04 ..
crw-------    1 root     root      10,  63 Aug  5 17:52 control

:-)

To be care I "vgchange -a n", than compile and install lvm2 tools.
Then I just edit lvm.conf file so that filter only sd disc
filter = [ "a|^/dev/sd|, "r/.*/" ]
[...]
file = /var/log/lvm2.log

level=7

activation=1 # in log section

Unfortunately _vgchange_ failled to recover vg structure:

#vgscan --version
  LVM version:     2.00.05 (2003-07-18)
  Library version: 1.00.02-ioctl (2003-07-12)
  Driver version
  4.0.1

#vgscan
  Volume group "EvmsLvm" not found
    Wiping cache of LVM-capable devices
    Wiping internal cache
  Reading all physical volumes.  This may take a while...
    Finding all volume groups
    Finding volume group "EvmsLvm"

Very strange: it first tell 'Volume group "EvmsLvm" not found' and finaly
'Finding volume group "EvmsLvm"' ?

Vgchange will it tell the true?
#vgchange -a y

too bad:
  Out of memory.  Requested 2483027988 bytes.
  Failed to read extents from /dev/sdc
  Unable to find volume group "EvmsLvm"

Any idea?

(As I use full log I join a gz of this lvm2.log)

Thanks in advance for help,
    Joel

PS: I do a similar exercise on my ia32 platform (same linux-2.4.21 not pa
specific naturaly) and do not met any pb.
There is anyway a small difference:
on the ia32 I build a vg over a disk slice; on hppa, allover a full disk
(i don't think that it does matter, but just in case?)





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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Terminfo/termcap for a 70096 ...
Date: Tue, 5 Aug 2003 14:38:23 -0400 (EDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:19104

> > On Tue, Aug 05, 2003 at 03:04:24PM +0200, "Beerse, Corn=E9" wrote:
> > > Unfortunatly, while installing DebianWoody on a D370, I found none =
> of
> them
> > > in the terminfo database (and no termcap file). And the HP700/96 =
> came
> with
> > > the D370. I know one thing to do after finalizing the install....
> >=20
> > Yeah, Debian doesn't have termcap, there's a document somewhere that
> > explains why.
> 
> I don't care if they use termcap or terminfo. It bothers me that they =
> have
> no HP700xx entry in there, not even in the pa-risc distribution. =
> Specially
> the pa-risc distro can find a 700xx terminal at its console so it would =
> be
> nice if the TERM boot parameter can be set to indicate a hp700 =
> terminal.

GNU ncurses 2.2 has an entry for a HP 700/44 which is probably usable.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


From - Thu Nov 08 21:28:40 2018
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From: "Russell Romain" <thecrushedangel@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 712/80 Video
Date: Wed, 06 Aug 2003 06:27:46 +0000
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Okay, Iv done some research,  I have a HP 712/80 im playing with,  is it 
correct that Im not going to get above 8bit 256colors on it?  Or is there 
anything I can do to get 16bit color ?

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From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
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Subject: [parisc-linux] 2.6.x - impressions
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Hi!

Now, where __cffc is checked in, I did some testing with
2.6.0-test2-pa6. This has been done on a B132L+, 768MB RAM, IBM PS/2
keyboard.

- On my keyboard (german "QWERTZ" layout) the key containing '>', '<'
  and '|' doesn't work any longer. Annoying cut'n'paste starts right
  here8^>

- If I strace some program, the box will crash some time later (while
  strace is still running). I can still toggle the NumLock LED by
  pressing the NumLock button, power doesn't instantly go off if I press
  the button. Hmmm... SysRQ doesn't work either, but is switched on in
  .config. Seems PrintScreen doesn't work either.
  TOC gives back access to the box, I haven't yet looked at the data.
  2.4.x does do the same thing on strace, though...

- Neither ALSA nor the OSS driver for harmony can be compiled. No sound
  (but I remember from 2.4.x that sound playing was unstable - when I
  placed some load on the box, it would eventually Oops...).

- I became brave and installed XFree86, using the framebuffer driver:

STI GSC/PCI core graphics driver Version 0.9a
STI word mode ROM at f0011000, hpa at f8000000
STI id 2d08c0a7-9a02587, conforms to spec rev. 8.07
STI device: INTERNAL_EG_1280
fb0: stifb 1280x1024-8 frame buffer device, id: 2d08c0a7, mmio:
0xf8100000
Console: switching to colour frame buffer device 160x64

  It starts, I can perfectly see X11's rasterized background. But when
  WindowMaker loads it's background image, the screen goes mostly black.
  Some white points can be seen (I feel like these are where colors of
  real contrast meet each other, so I can see the outlines of context
  menus...), but that's not enough to really work with it:)

- 2.6.x "feels" a bit slower than 2.4.x (while still using HZ =3D=3D 100 for
  hppa1.1 machines), but that's what everybody and his mother tell you
  wrt. any given architecture...

- I installed mozilla on my Athlon and on this B132L+ and started both
  via 'ssh -X' from my laptop (using --no-remote). Comparable
  startup-times for both, while my Athlon has 10x CPU MHz, 2x CPU count
  and 2x RAM size. Nice:)


To draw a conclusion: Nice work:) Some minor tweaks need to be done
(keyboard, graphics, strace), but 2/3 of them need to be done for 2.4.x,
too. I think the keyboard thing is quite easy, and for the graphics,
maybe that's only a small colormap problem. The strace problem (which is
present in 2.4.x, too) looks a bit more complicated, but I'll have a
look at the PIM and post new infos afterwards.

Sound would be an add-on-feature, but personally I don't care much about
it. I'm not one of those multimedia guys...

MfG, JBG

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From: "Joel Soete" <jsoe0708@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] bitops.h patch
Date: Wed, 6 Aug 2003 10:23:59 +0200
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Hi Grant,

Thanks first for the help of previous patches :-)

And here is the final one for bitops.h suggested by Lamont for
2.6:
diff -Naur linux-2.6.0-test2.orig/include/asm-parisc/bitops.h linux-2.6.0-test2-b/include/asm-parisc/bitops.h
--- linux-2.6.0-test2.orig/include/asm-parisc/bitops.h	2003-08-05 19:24:18.000000000
+0200
+++ linux-2.6.0-test2-b/include/asm-parisc/bitops.h	2003-08-06 10:02:00.000000000
+0200
@@ -223,16 +223,31 @@
  * @word: The word to search
  *
  * Undefined if no bit exists, so code should check against 0 first.
+ *
+ * This is a fast ffs version written by "LaMont Jones <lamont@hp.com>"
  */
-static __inline__ unsigned long __ffs(unsigned long word)
-{
-	unsigned long result = 0;
 
-	while (!(word & 1UL)) {
-		result++;
-		word >>= 1;
-	}
-	return result;
+static __inline__ int __ffs(int x)
+{
+	int ret;
+	__asm__(" ldi    32,%1\n"
+		" extru,<>  %0,31,16,%%r0\n"
+		" extru,TR  %0,15,16,%0\n"
+		" addi    -16,%1,%1\n"
+		" extru,<>  %0,31,8,%%r0\n"
+		" extru,TR  %0,23,8,%0\n"
+		" addi    -8,%1,%1\n"
+		" extru,<>  %0,31,4,%%r0\n"
+		" extru,TR  %0,27,4,%0\n"
+		" addi    -4,%1,%1\n"
+		" extru,<>  %0,31,2,%%r0\n"
+		" extru,TR  %0,29,2,%0\n"
+		" addi    -2,%1,%1\n"
+		" extru,=  %0,31,1,%%r0\n"
+		" addi    -1,%1,%1\n"
+		: "=r" (x), "=r" (ret)
+		: "0" (x), "1" (ret));
+	return ret;
 }
 
 /*
================================================================================

If some interrest could you ci for me (I have no ci access)

Thanks in advance,
    Joel



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Subject: [parisc-linux] kernel BUG at include/linux/skbuff.h:834!
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When I included a 4th a500 ("ios") into my distcc cluster, I didn't think
much of it running 2.6.0-test1 (IIRC). System panic'd near the end
of a kernel build. Output and stack "contents" appended.
NIC which was under load was tg3 .

grant


kernel BUG at include/linux/skbuff.h:834!
Kernel addresses on the stack:
 [<00000000103065e4>]  [<00000000000c49c0>]  [<0000000010306aa0>]  [<00000000101445c4>] 
 [<0000000010248e4c>]  [<000000001019d900>]  [<00000000101115f0>]  [<000000001010a074>] 
 [<00000000101893b8>]  [<000000001018a218>]  [<000000001019d900>]  [<00000000101115f0>] 
 [<0000000010161888>]  [<000000001032b644>]  [<000000001032bfd4>]  [<0000000010161d50>] 
 [<0000000010354cc0>]  [<00000000101cd1dc>]  [<0000000010184a34>]  [<0000000010184b74>] 
 [<000000001019d900>]  [<0000000010184cfc>]  [<000000001010ae4c>]  [<000000001010a074>] 

kernel BUG at include/linux/skbuff.h:870!
Kernel addresses on the stack:
 [<00000000103065e4>]  [<00000000000c49c0>]  [<0000000010306aa0>]  [<00000000101445c4>] 
 [<0000000010248e4c>]  [<000000001019d900>]  [<00000000101115f0>]  [<000000001010a074>] 
 [<00000000101893b8>]  [<000000001018a218>]  [<000000001019d900>]  [<00000000101115f0>] 
 [<0000000010161888>]  [<000000001032b644>]  [<000000001032bfd4>]  [<0000000010161d50>] 
 [<0000000010354cc0>]  [<00000000101cd1dc>]  [<0000000010184a34>]  [<0000000010184b74>] 
 [<000000001019d900>]  [<0000000010184cfc>]  [<000000001010ae4c>]  [<000000001010a074>] 



0x103065e4 netif_receive_skb+16c
0xc49c0 _DYNAMIC+c49c0
0x10306aa0 net_rx_action+148
0x101445c4 do_softirq+cc
0x10248e4c iosapic_interrupt+4c
0x1019d900 locate_fd+100
0x101115f0 pdc_pat_chassis_send_log+78
0x1010a074 intr_return+0
0x101893b8 unmap_underlying_metadata+20
0x1018a218 __block_prepare_write+5a0
0x1019d900 locate_fd+100
0x101115f0 pdc_pat_chassis_send_log+78
0x10161888 generic_file_aio_write_nolock+820
0x1032b644 cleanup_rbuf+bc
0x1032bfd4 tcp_recvmsg+374
0x10161d50 generic_file_aio_write+c0
0x10354cc0 inet_recvmsg+58
0x101cd1dc ext3_file_write+34
0x10184a34 do_sync_write+84
0x10184b74 vfs_write+fc
0x1019d900 locate_fd+100
0x10184cfc sys_write+64
0x1010ae4c syscall_exit+0
0x1010a074 intr_return+0


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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] kernel BUG at include/linux/skbuff.h:834!
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Xref: news.gmane.org gmane.linux.ports.parisc:19109

On Wed, Aug 06, 2003 at 08:32:19AM -0600, Grant Grundler wrote:
> When I included a 4th a500 ("ios") into my distcc cluster, I didn't think
> much of it running 2.6.0-test1 (IIRC). System panic'd near the end
> of a kernel build. Output and stack "contents" appended.
> NIC which was under load was tg3 .

"I don't believe you" ;-)

> kernel BUG at include/linux/skbuff.h:834!
> Kernel addresses on the stack:
>  [<00000000103065e4>]  [<00000000000c49c0>]  [<0000000010306aa0>]  [<00000000101445c4>] 
>  [<0000000010248e4c>]  [<000000001019d900>]  [<00000000101115f0>]  [<000000001010a074>] 
>  [<00000000101893b8>]  [<000000001018a218>]  [<000000001019d900>]  [<00000000101115f0>] 
>  [<0000000010161888>]  [<000000001032b644>]  [<000000001032bfd4>]  [<0000000010161d50>] 
>  [<0000000010354cc0>]  [<00000000101cd1dc>]  [<0000000010184a34>]  [<0000000010184b74>] 
>  [<000000001019d900>]  [<0000000010184cfc>]  [<000000001010ae4c>]  [<000000001010a074>] 

^^^^^ these addresses

> kernel BUG at include/linux/skbuff.h:870!
> Kernel addresses on the stack:
>  [<00000000103065e4>]  [<00000000000c49c0>]  [<0000000010306aa0>]  [<00000000101445c4>] 
>  [<0000000010248e4c>]  [<000000001019d900>]  [<00000000101115f0>]  [<000000001010a074>] 
>  [<00000000101893b8>]  [<000000001018a218>]  [<000000001019d900>]  [<00000000101115f0>] 
>  [<0000000010161888>]  [<000000001032b644>]  [<000000001032bfd4>]  [<0000000010161d50>] 
>  [<0000000010354cc0>]  [<00000000101cd1dc>]  [<0000000010184a34>]  [<0000000010184b74>] 
>  [<000000001019d900>]  [<0000000010184cfc>]  [<000000001010ae4c>]  [<000000001010a074>] 

^^^^^ are the same as these addresses

The first BUG is in skb_put() and the second BUG is in skb_pull().  Neither
are called from netif_receive_skb(), nor net_rx_action().  

> 0x103065e4 netif_receive_skb+16c
> 0xc49c0 _DYNAMIC+c49c0
> 0x10306aa0 net_rx_action+148
> 0x101445c4 do_softirq+cc
> 0x10248e4c iosapic_interrupt+4c
> 0x1019d900 locate_fd+100
> 0x101115f0 pdc_pat_chassis_send_log+78
> 0x1010a074 intr_return+0
> 0x101893b8 unmap_underlying_metadata+20
> 0x1018a218 __block_prepare_write+5a0
> 0x1019d900 locate_fd+100
> 0x101115f0 pdc_pat_chassis_send_log+78
> 0x10161888 generic_file_aio_write_nolock+820
> 0x1032b644 cleanup_rbuf+bc
> 0x1032bfd4 tcp_recvmsg+374
> 0x10161d50 generic_file_aio_write+c0
> 0x10354cc0 inet_recvmsg+58
> 0x101cd1dc ext3_file_write+34
> 0x10184a34 do_sync_write+84
> 0x10184b74 vfs_write+fc
> 0x1019d900 locate_fd+100
> 0x10184cfc sys_write+64
> 0x1010ae4c syscall_exit+0
> 0x1010a074 intr_return+0

So none of these addresses make any sense ;-(

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] 2.5 -> 2.6 tree switch tomorrow
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Hey folks we're closing the 2.5 tree and opening the 2.6 tree tomorrow
between 10AM and 10:30AM US Mountain (GMT-7).

First the 2.5 tree will be set to read only.  Then all the changes
in that tree will be moved to the 2.6 tree which will be announced
as open for busines.  The 2.5 tree will stay around in read-only form
for diffs and history.

	-P


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Thanks...




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From: Ruediger Scholz <rscholz@hrzpub.tu-darmstadt.de>
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Subject: [parisc-linux] Problem: linux-2.6.0-test-pa6 and ssh
Date: Thu, 07 Aug 2003 06:01:38 +0200
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Hi,

booting the 2.6.0-test2-pa6 kernel works quite right, but when I try to 
login via ssh I get the following error after entering the password: 
"Server refused to allocate pty".
With a 2.4-kernel and latest 2.5-kernel it worked alright.
I using devfs and debian unstable on my 715/100.
Has anyone an idea how to get ssh to work?

Ruediger



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From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.6.x - impressions
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On Wed, 2003-08-06 08:56:47 +0200, Jan-Benedict Glaw <jbglaw@lug-owl.de>
wrote in message <20030806065647.GP1873@lug-owl.de>:
> - I became brave and installed XFree86, using the framebuffer driver:
>=20
> STI GSC/PCI core graphics driver Version 0.9a
> STI word mode ROM at f0011000, hpa at f8000000
> STI id 2d08c0a7-9a02587, conforms to spec rev. 8.07
> STI device: INTERNAL_EG_1280
> fb0: stifb 1280x1024-8 frame buffer device, id: 2d08c0a7, mmio:
> 0xf8100000
> Console: switching to colour frame buffer device 160x64
>=20
>   It starts, I can perfectly see X11's rasterized background. But when
>   WindowMaker loads it's background image, the screen goes mostly black.
>   Some white points can be seen (I feel like these are where colors of
>   real contrast meet each other, so I can see the outlines of context
>   menus...), but that's not enough to really work with it:)

After some reading, this seems to be a XFree86 4.2.x problem. The RENDER
engine (doing antialiasing) seems to pre-allocate 200 colours in
advance. After some background image is displayed (which for sure will
take most of the remaining colours) there are "no" colours left to
display menus, xterms and the like.

This will change (or configurable) in Xfree86 4.3.x.

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
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k!
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problem: linux-2.6.0-test-pa6 and ssh
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> booting the 2.6.0-test2-pa6 kernel works quite right, but when I try to 
> login via ssh I get the following error after entering the password: 
> "Server refused to allocate pty".
> With a 2.4-kernel and latest 2.5-kernel it worked alright.
> I using devfs and debian unstable on my 715/100.
> Has anyone an idea how to get ssh to work?

hm.. it seems to work for me... can you try running sshd in debug 
mode (sshd -ddd, output goes to syslog) and see if that tells you more 
about what's happening?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] 2.6.x - impressions
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> - If I strace some program, the box will crash some time later (while
>   strace is still running). I can still toggle the NumLock LED by

what did you try to strace that caused the machine to crash?=20

randolph
--=20
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

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Subject: Re: [parisc-linux] 2.6.x - impressions
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On Wed, 2003-08-06 23:28:19 -0700, Randolph Chung <randolph@tausq.org>
wrote in message <20030807062818.GC4979@tausq.org>:
> > - If I strace some program, the box will crash some time later (while
> >   strace is still running). I can still toggle the NumLock LED by
>=20
> what did you try to strace that caused the machine to crash?=20

cvsps. That's a small programm querying a CVS server to get patchsets
(not simple patches) out of it. It's for a BKCVS to Arch gateway I'm
working on.

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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Subject: Re: [parisc-linux] Problem: linux-2.6.0-test-pa6 and ssh
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Thanks for your help, but I already found the answer. (rtfm, or in this 
case not the manual but "The post-halloween document. v0.42" from Dave 
Jones... ;) )
When using devfs with 2.4 I didn't need to mount the devpts-fs, so I 
comment this part out in /etc/fstab. Because of the changes to devfs in 
2.5 I had to mount the devpts now. So I mounted devpts, and everything 
worked like a charm again.

Running ssh in debug mode and without mounted devpts gives:
----------SNIP------
debug1: Allocating pty.
openpty: No such file or directory
session_pty_req: session 0 alloc failed
----------SNAP-----

Ruediger

Randolph Chung schrieb:

>hm.. it seems to work for me... can you try running sshd in debug 
>mode (sshd -ddd, output goes to syslog) and see if that tells you more 
>about what's happening?
>
>randolph
>  
>




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On Wed, 2003-08-06 23:28:19 -0700, Randolph Chung <randolph@tausq.org>
wrote in message <20030807062818.GC4979@tausq.org>:
> > - If I strace some program, the box will crash some time later (while
> >   strace is still running). I can still toggle the NumLock LED by
>=20
> what did you try to strace that caused the machine to crash?=20

I now did a TOC when it hung. (No virtual console switching possible,
but NumLock still worked. Here's my TOC content:

General Registers 0 - 31
 0 -  3  0x00000000  0x103000f0  0x101c77fc  0x37efc4e5
 4 -  7  0x00000008  0x00000001  0xffffffff  0x00000001
 8 - 11  0xffffffff  0x37efc4e4  0x00000010  0xc8103b1c
12 - 15  0x0000006c  0x102b24f4  0x00047ae0  0x00000020
16 - 19  0x37efc080  0x0000ff00  0x00025000  0x00000001
20 - 23  0x00000000  0x0000000e  0x00000010  0x00000000
24 - 27  0x00000000  0xffffffff  0x37efc4e5  0x102e4010
28 - 31  0x00000000  0x00000000  0x37efc740  0x101c717c

<Press any key to continue (q to quit)>

Control Registers 0 - 31
 0 -  3  0x00000000  0x00000000  0x00000000  0x00000000
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000
 8 - 11  0x00000754  0x00000000  0x000000c0  0x00000000
12 - 15  0x00000000  0x00000000  0x00107800  0xf1000000
16 - 19  0xd5a827ac  0x00000000  0x101c6f58  0x92602000
20 - 23  0x00000000  0x37efc720  0x0004000f  0x00000000
24 - 27  0x002f6000  0x27f25000  0xfefffffb  0xaaaaaaaa
28 - 31  0xaaaaaaaa  0x11111111  0x37efc000  0x10354000

Space Registers 0 - 7
 0 -  3  0x00000000  0x000001bf  0x00000000  0x000003aa
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000

IIA Space                    =3D 0x00000000
IIA Offset                   =3D 0x101c6f5c
CPU State                    =3D 0x9e000001

--------------------------------------------------------

r02:	vsnprintf + 0x604
r27:	$global$ + 0x0
r31:	number + 0x2b8
IIA Offset:	number + 0x98

So it's most probably dieing in some printk() or something like that
with a bad parameter or format string? Is there some way to get more
than only the CPU state (eg. more stack frames)?

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
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k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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I am getting a weird error on attempting to run Xfree86 on my C200=2E  The=

kernel startup displays the fact that device fb0: has initialised okay, so=

the framebuffer is detected, but upon starting X I get a message saying
that the weight specified (000) is inconsistent with the colour depth (32)=


 Can anyone offer any advice please? I dont know what else to try now=2E=2E=
=20

 Many thanks,

   Adam


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Greetings I tried to install PA-Risc Linux in a Visualize C3000/785, but it
happened a HPMC.

When I reinitiated the machine no longer I had console.

Now the single console unfolds prompt login, does not unfold the beginning
of firmware, nor no other operation of load, does not allow to conduct no
other operation.

Some idea?

Edson Vittoriano Piuzzi
Ingeniero de Seguridad Informtica/CISSP
Sub-Gerencia Explotacin de Redes y Servicios de Datos
Telefnica Empresas CTC Chile
Fono:(56)-(2)-691-50-71
Mvil: 9-321-25-23
Santiago-Chile



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Edson,

> Greetings I tried to install PA-Risc Linux in a Visualize C3000/785, but it
> happened a HPMC.

Que ISO estavas usando?

> When I reinitiated the machine no longer I had console.

What console? The actual firmware console, or an OS console? (e.g. you
previously had HPUX installed :).

> Now the single console unfolds prompt login, does not unfold the beginning
> of firmware, nor no other operation of load, does not allow to conduct no
> other operation.

What does this console look like? Feel free to writeup the description
in Spanish if you feel more comfortable (soy Argentino).

c.



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Xref: news.gmane.org gmane.linux.ports.parisc:19125

Ive been trying for 5 days not to get a second nic
installed into hp b1000 using pa-risc woody 3

iv read all i can find , been to all the irc chnls 
im at a loss here 

it may be the 3com 3C95x pci card does not work in this
box 

it should work with debian 
the card does work in i386 box 
the builtin nic works fine

can this be done? if so is there a howto ?
if this card is not supported what nic cards are ? 

TIA


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: [parisc-linux] a fast fls also for 2.6?
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Xref: news.gmane.org gmane.linux.ports.parisc:19126

Hi pa,

well as last 2.6 doesn't yet boot on my b2k and having any chance to grab
any debug info (I tried 32bits and 64bits kernel: same results. And only
TOC just refer to unrelevant info. OTC it seems to works fine on the b180.
I really don't know where to look for this bug?), I tried to understand better
Lamont's Fastffs code. To verify that I actualy understand it, I tried this
Fast_fls:

#include <stdio.h>
#include <limits.h>

int generic_fls(int x)
{
	int r = 32;

	if (!x)
		return 0;
	if (!(x & 0xffff0000u)) {
		x <<= 16;
		r -= 16;
	}
	if (!(x & 0xff000000u)) {
		x <<= 8;
		r -= 8;
	}
	if (!(x & 0xf0000000u)) {
		x <<= 4;
		r -= 4;
	}
	if (!(x & 0xc0000000u)) {
		x <<= 2;
		r -= 2;
	}
	if (!(x & 0x80000000u)) {
		x <<= 1;
		r -= 1;
	}
	return r;
}

int PseudoFast_fls(int x)
{
/*
    Rewritte off generic_fls to mimic what would be done in asm
    (just as proof of concept)
 */

	int r = 1;

	if (!x)
		return 0;
	if (!(x & 0xffff0000u))
		x <<= 16;
        else
		r += 16;
	if (!(x & 0xff000000u))
		x <<= 8;
        else
		r += 8;
	if (!(x & 0xf0000000u))
		x <<= 4;
        else
		r += 4;
	if (!(x & 0xc0000000u))
		x <<= 2;
        else
		r += 2;
	if (!(x & 0x80000000u))
		x <<= 1;
        else
		r += 1;
	return r;
}

int __fls(int x)
{
	int ret;
	__asm__(" ldi    1,%1\n"
		" extru,<>  %0,15,16,%%r0\n"
		" zdep,TR  %0,15,16,%0\n"
		" addi     16,%1,%1\n"
		" extru,<>  %0,7,8,%%r19\n"
		" zdep,TR  %0,23,24,%0\n"
		" addi     8,%1,%1\n"
		" extru,<>  %0,3,4,%%r19\n"
		" zdep,TR  %0,27,28,%0\n"
	 	" addi     4,%1,%1\n"
		" extru,<>  %0,1,2,%%r19\n"
		" zdep,TR  %0,29,30,%0\n"
		" addi     2,%1,%1\n"
		" extru,=  %0,0,1,%%r19\n"
		" addi     1,%1,%1\n"
		: "=r" (x), "=r" (ret)
		: "0" (x), "1" (ret));
	return ret;
}

int Fastfls(int x)
{
	int ret;
	if (!x)
		return 0;
	return (__fls(x));
}

main()
{
	unsigned int i;

	for (i=0; i<0xffffffffU; i++) {
/*		if (generic_fls(i) != PseudoFast_fls(i)) */
		if (generic_fls(i) != Fastfls(i))
			printf ("Problem with i = %#010x (%d)\n", i, i);
	}
}

Cheers,
    Joel

PS: Don not hesitate to let me know if you would like that I make a patch
with this stuff

------------------------------------------------------
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Xref: news.gmane.org gmane.linux.ports.parisc:19127

It might be the 3com card, the recommended NIC cards for the B1000 are
HP B5509BA PCI 10/100Base-TX and HP A4926A PCI 1000Base-SX

Jesse

geos@canada.com wrote:

> Ive been trying for 5 days not to get a second nic
> installed into hp b1000 using pa-risc woody 3
>
> iv read all i can find , been to all the irc chnls
> im at a loss here
>
> it may be the 3com 3C95x pci card does not work in this
> box
>
> it should work with debian
> the card does work in i386 box
> the builtin nic works fine
>
> can this be done? if so is there a howto ?
> if this card is not supported what nic cards are ?
>
> TIA
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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> it may be the 3com 3C95x pci card does not work in this
> box 
> it should work with debian 
> the card does work in i386 box 
> the builtin nic works fine

how does it "not work"? does it hang the box?

i have a spare 3c95x that i can try as well... (altho there are 
really many variants of the vortex/boomerang cards)

can you perhaps plug the card into a working i386 box and show us the
lspci -vvvn output?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Xref: news.gmane.org gmane.linux.ports.parisc:19129

> Ive been trying for 5 days not to get a second nic
>installed into hp b1000 using pa-risc woody 3
>
>iv read all i can find , been to all the irc chnls 
>im at a loss here 
>
>it may be the 3com 3C95x pci card does not work in this
>box 
>
>it should work with debian 
>the card does work in i386 box 
>the builtin nic works fine
>
>can this be done? if so is there a howto ?
>if this card is not supported what nic cards are ? 

For my part, I run successfully a Debian on a b2k with 2 nic (the builtin
and an additional) since a long time but it is an hp product.

I also try some stuff coming from i386: an OEM hp equinox pci card (which
Grant use successfully on a i386) but the driver doesn't yet work on hppa;
also in the same case an ATI gfx card,... (for this last I am awaiting that
2.6 run on my b2k to investigate more because ATI drivers are already improved
in 2.6 :-))

Joel


------------------------------------------------------
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Please reply to the list, not to me privately.

In reference to a message from geos@canada.com, dated Aug 07:
> I will try that later tonite 
> i cannot get the 3c95x.c to compile or when i do it
> tells me its compiled for the wrong kerel 

this looks like a generic module compiling problem, not hppa specific...
have you done this before succesfully? Are you building a module from
the same tree where you built the kernel you are running? I just tried
this against 2.4 cvs and it works fine.

> modconf does not show this nic in the list

is the module installed in /lib/modules/`uname -r` ?

> make config did not change anything 

what did you expect it to do?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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The linux-2.6 tree is now ready for business and the linux-2.5 tree is
frozen.  Tarball (which could be used to seed a CVS tree) and patch
at the usual place:

    http://cvs.parisc-linux.org/download/linux-2.6/

FYI We are using a different CVS branch architecture which should be
completely transparent most of the time.  I'll get a description of
it out soon.

Autobuilt kernels to follow at some point.  FYI the 2.4 autobuilder
is currently off line.

	-P


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Sorry about that 
im kinda new to this if you cant tell ;)
make config allowed me to select what nic drivers i
wanted but this did not compile or load the new driver  

i will have to get the exact errors msg's when i get
back home 

i ran the recompile kernal found here 
http://www.parisc-linux.org/kernel/index.html
using Simple Recipe to Build a Kernel 

this added the source to /usr/src/linux
that source should be the same as my kernal 
after doing that i did this 
http://www.scyld.com/expert/modules.html
needed to get lib6,cvs after a net-install to do this 

the common error after compileing and doing a insmod
3c95x.o
was "this was compiled for 2.4.18 and this version is
for 2.4.19" 
so i copy the 3c95x.c from the 2.4.19 kernel and did it
again now i get an error like this will not function 

ill get better errors msgs tonight

am i doing this all wrong ?







> 
> Please reply to the list, not to me privately.
> 
> In reference to a message from geos@canada.com, dated
> Aug 07:
> > I will try that later tonite 
> > i cannot get the 3c95x.c to compile or when i do it
> > tells me its compiled for the wrong kerel 
> 
> this looks like a generic module compiling problem,
not
> hppa specific...
> have you done this before succesfully? Are you
building
> a module from
> the same tree where you built the kernel you are
> running? I just tried
> this against 2.4 cvs and it works fine.
> 
> > modconf does not show this nic in the list
> 
> is the module installed in /lib/modules/`uname -r` ?
> 
> > make config did not change anything 
> 
> what did you expect it to do?
> 
> randolph
> -- 
> Randolph Chung
> Debian GNU/Linux Developer, hppa/ia64 ports
> http://www.tausq.org/


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Subject: [parisc-linux] Re: Apollo 9000 power problem
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Hello HP Hackers !

I have a work around for the POWER SUPPLY Problem.

Using schematics and analysing this very very hard thing,
I found out, that the problem we all have was created
by an exploded capacitor.

The thing running out of the capacitor mixed with the dust
in the machine generates an resistor on the PCB board.

On the low voltage end of the power supply (near front),
ther is a small SIM-like module which does the supervision of
all volatage lines (plus over current protection) and which
generates the reset impuls.

Now to the problem. The line coming from the current measure
transformer is the neighbour line of the -12V line. Because
of the electrical resistor because of the dust, etc, the
negative voltage comes to the current supervision line, and
therefore one supervision comperator does a wrong failure
reaction !

Workaround:

- step 1 -
Try to clean the space on the PCB around this supervison module.
(I soldered it out for cleaning, a resoldered it in)..

- step 2 -
This helps. But after weeks the problem returned again ....
I soldered in a resistor between the +Vaux (about 12..16V)
and this current measure line to compensate this negativ
voltage of the -12V line.
This is no relevant impact to the over-current protection,
as the resistor has a high value against the measurement
output.

This worked for me.
If you need help on this, please contact me ...

Christoph




-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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Subject: [parisc-linux] Status E55 - or family
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Hello PA RISC hackers ...

Are there any news concerning the E55 (or family) stuff.

Now I have not hacked on PA RISC linux for a longer time.

Are there news on the MUX supporting more then 1 port ?
Are there news on the SCSI driver ?
The last status was, that all access to this device was done in
"empty" io space ...

Are there news concerning my NDA ??!!

Please reply

Christoph



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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---------------------------
() ҵվ(Ӣ)

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25ЧͼƬӢĹ8
26ЧҳӢĹ6
27ݿտͻԡͻ
28ݿԱ
29ʼбռÿʼַ͹棻
30ݿƷ
31άվ1ꣻ
32ƽÿ¸վ32ҳΣ
33ҪԼάѵ3ܣ3ף
34óƵ--óҵͨ1ס
--------------------------- 
˾һҴóҵ"Ӧо""繤̽""ýӰӶ
"רҵ˾רΪҹó˾ҵּ
ӦϵͳվԼҵýӰӶƬ

˾ڹóٻֺ֧֯£ɹԭ֤
ϵͳóƵͨóҵͨϵóӦ
ƷܵóҵĻӭ    

ͬʱҵϵ˾ŷ塢ձ
ǵȵʮҲɹ̡СԼõĺ
ϵȥһ࣬˾Ѱɹڹҵʵ
ڲƷٳɶڳóס
 -----------------------------
˾г޹˾
ַмô԰6¥9E
绰020-85580234ת19 20
棺020-85581405
ֻ13640327836
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ΪӢģҵվ
------------------------
ҪԻƣģ档
 վչܹӦҵ޷չҪ
 к̨ܣվɺ󣬽Լ¹
-----------------------------
˾Ϊվ¹ܣ

 1.Ʒչʾ-չʾĲƷͼĲï༶̨࣬
 2.̵-ͻֱѡĲƷ̵һ
 3.Ʒ-ͻͨƷơ𡢹ؼʵȲĲƷ
 4.ͻ-ԲͬͻԱɽзּȨޡ
 5.Ʒ-ͻֱ¶ĲƷ
 6.ͻ-ͻֱϸԣ
 7.ŷ-ֱӷ˾š֪ͨϢȡ
 8.Ա-Ϊⲿ̳ҲΪ˾ڲԱͨƽ̨
 9.ϵ-趨κ⣬ͻԱ˽˽顣
10.ʼб-ռͻϣͻϢ
11.Ϻؿ-Ҫգͻ;ؿǿͻĸ顣
12.ҵʾ-վͬҵʾ֣ҵĶ
13.̨-ϹܣԼƹרҵԱ

ҲԴ5Уѡһʺ˾վ?
-----------------------------
(һ) ҵվ(Ӣ)

 11
 2100ռ䣻
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11LogoGif
12BannerGif
13վԶڸ2(Ӣ)
14ӭҳ߼1ף
15õտͻ;
16άվ1ꣻ
17ƽÿ¸վ2ҳΡ
--------------------------
() ׼ҵվ(Ӣ)

 11
 2120ռ䣻
 31ҵͬ䣻
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 51Ӣվӭҳ
 61վҳ
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 810վҳ       
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10Gifťͣť
11Flash1
12LogoGif
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14Ч1
15վӢվ
16վԶڸ2(Ӣ)
17ӭҳ߼1ף
18õտͻԣ
19ЧͼƬӢĹ2
20ĻӢĹ2
21άվ1ꣻ
22ƽÿ¸վ4ҳΣ
---------------------------
() ҵվ(Ӣ)

 11
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1020Ӣվҳ
11Gifťͣť̬ť
12Flash2
13Ƶ1
14Ч1
15LogoGif
16Banner̬
17̬1
18վԶڸ2(Ӣ)
19ҳ߼
20ݿտͻ
21ЧͼƬӢĹ4
22ЧҳӢĹ2
23Ļ棨šţӢĹ4
24άվ1ꣻ
25ƽÿ¸վ8ҳΣ
26ҪԼάѵ1ܣ1ס
---------------------------
() ҵվ(Ӣ)

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11Gifťͣť̬ť
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15ҳ1
16LogoGif
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20ҳ߼
21άվ1ꣻ
22ЧͼƬӢĹ6
23ЧҳӢĹ4
24ݿտͻԣ
25Ļ棨šţӢĹ6
26ݿտͻ
27ݿƷ
28ƽÿ¸վ16ҳΣ
29ҪԼάѵ2ܣ2ס
30óƵ--óƵͨ1ס
---------------------------
() ҵվ(Ӣ)

 11
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1080Ӣվҳ
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12Flash8
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16LogoGif
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21ҳ߼
22ͻ԰2(Ӣ)
23ݿտͻԣ
24Ļ棨šţӢĹ8
25ЧͼƬӢĹ8
26ЧҳӢĹ6
27ݿտͻԡͻ
28ݿԱ
29ʼбռÿʼַ͹棻
30ݿƷ
31άվ1ꣻ
32ƽÿ¸վ32ҳΣ
33ҪԼάѵ3ܣ3ף
34óƵ--óҵͨ1ס
--------------------------- 
˾һҴóҵ"Ӧо""繤̽""ýӰӶ
"רҵ˾רΪҹó˾ҵּ
ӦϵͳվԼҵýӰӶƬ

˾ڹóٻֺ֧֯£ɹԭ֤
ϵͳóƵͨóҵͨϵóӦ
ƷܵóҵĻӭ    

ͬʱҵϵ˾ŷ塢ձ
ǵȵʮҲɹ̡СԼõĺ
ϵȥһ࣬˾Ѱɹڹҵʵ
ڲƷٳɶڳóס
 -----------------------------
˾г޹˾
ַмô԰6¥9E
绰020-85580234ת19 20
棺020-85581405
ֻ13640327836
䣺linyu921@sina.com
-----------------------------



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geos@canada.com wrote:

>Sorry about that 
>im kinda new to this if you cant tell ;)
>make config allowed me to select what nic drivers i
>wanted but this did not compile or load the new driver  
>
>i will have to get the exact errors msg's when i get
>back home 
>
>i ran the recompile kernal found here 
>http://www.parisc-linux.org/kernel/index.html
>using Simple Recipe to Build a Kernel 
>
>this added the source to /usr/src/linux
>that source should be the same as my kernal 
>after doing that i did this 
>http://www.scyld.com/expert/modules.html
>needed to get lib6,cvs after a net-install to do this 
>
>the common error after compileing and doing a insmod
>3c95x.o
>was "this was compiled for 2.4.18 and this version is
>for 2.4.19" 
>so i copy the 3c95x.c from the 2.4.19 kernel and did it
>again now i get an error like this will not function 
>
Well if I well understand you reached to recompile hppa linux kernel 
with module for 3c95x: congratulation.
But to load modules, they have to be build for the kernel you are 
running (I think that will change in 2.6). So the only  think to do now 
is to _reboot_ with the kernel you just rebuild for your nic :)

hth,
    Joel




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On Fri, 2003-08-08 07:46:24 +0000, Joel Soete <joel.soete@tiscali.be>
wrote in message <3F335550.3030804@tiscali.be>:
> geos@canada.com wrote:

> But to load modules, they have to be build for the kernel you are=20
> running (I think that will change in 2.6). So the only  think to do now=
=20

I'm quite sure that won't change, ever. Linux, if it's compatible to
itself at all, has got "only" a source compatible API. You're somewhat
on a more save side if you're using symbol versioning, but if you force
a module to load (into a kernel of different version or even of
different configuration), you may loose. Right now or sometime later:)

That's what "tainting" was ment for:)

MfG, JBG

--=20
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Subject: Re: [parisc-linux] Status E55 - or family
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On Fri, Aug 08, 2003 at 12:02:33AM +0200, Christoph Plattner wrote:
> Are there any news concerning the E55 (or family) stuff.

yes - I've collected documentation needed for HP-PB SCSI
(both SE SCSI and FWD SCSI) but haven't had time to run
that through "the process".

...
> Are there news concerning my NDA ??!!

My request to release them under NDA only was denied by mgt. :^(

grant


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On Wed, Aug 06, 2003 at 03:57:00PM +0100, Matthew Wilcox wrote:
> "I don't believe you" ;-)

Well, I just copied what the kernel posted to the console.
Maybe the stack trace was from the wrong stack? (kernel vs user space)

> The first BUG is in skb_put() and the second BUG is in skb_pull().  Neither
> are called from netif_receive_skb(), nor net_rx_action().  

yup - I see that now too. 
The stack info is crap unless the calls to skb_* are hidden
in macros or other inline function calls.

...
> So none of these addresses make any sense ;-(

ok. :^(

Hopefully this is reproducible.

grant


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Subject: [parisc-linux] Re: Debian on rp 7400
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BTW, this discussion really belongs on parisc-linux.org mailing list.
It's not specific to debian-hppa and is very kernel centric.

On Fri, Aug 08, 2003 at 09:10:44AM +0000, Joel Soete wrote:
> >IIRC, "non-equivalently mapped aliases" 

> Is there much more detailed public doc some where about this stuff?

sorry - I don't understand the problems well enough.
The PA 2.0 arch book might describe the cache behaviors sufficiently
to determine this will be a problem.

> >BTW< this topic has been thoroughly discussed on parisc-linux
> >mailing list. See www.parisc-linux.org mailing list archives.

google search for
	equivalent mapped [parisc-linux site:lists.parisc-linux.org]

yielded the original thread from Jerry Huck:

http://lists.parisc-linux.org/pipermail/parisc-linux/1999-December/008101.html

I only partially understand what Jerry talking about and have no idea
how linux VM implementation collides with the aliasing rules.


Bjorn Helgaas posted a another thread two years later that might
be more helpful since it's specific to superdome (AFAIK same problems
as with N-class and L3000):

http://lists.parisc-linux.org/pipermail/parisc-linux/2001-April/012388.html

I didn't see any direct followup to Bjorn's mail in the archive though
some discussion did occur in other forums (much later).

hth,
grant


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From: Gustavo Zacarias <gustavo@zacarias.com.ar>
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Subject: [parisc-linux] K360 with 64 bit kernel?
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Hi.
Has anyone managed to boot a K360 with a 64 bit kernel?
The machine works just fine with a 32 bit one.
The problem is the machine getting stuck just after the ncr53c8xxx 
driver with a bunch of scsi timeouts.
You can check the logs at http://www.zacarias.com.ar/hppa/ (a good boot 
on 32, and the dead one on 64).
Thanks in advance.




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On Fri, Aug 08, 2003 at 10:37:44AM -0600, Grant Grundler wrote:
> On Fri, Aug 08, 2003 at 09:10:44AM +0000, Joel Soete wrote:
> > >IIRC, "non-equivalently mapped aliases" 
> 
> > Is there much more detailed public doc some where about this stuff?
> 
> sorry - I don't understand the problems well enough.
> The PA 2.0 arch book might describe the cache behaviors sufficiently
> to determine this will be a problem.

You're looking for the section "Address Aliasing" starting on page F-5.
For the dead-tree-non-enabled, it's covered at
http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,959!218!244,00.html

Note that the book has some small errata in this section; the copy on
the web has these errata corrected.

Also note that the use of space bits in generating the cache index
is disabled.

Also note that the 16MB boundary discussed is relaxed to 4MB.

> I only partially understand what Jerry talking about and have no idea
> how linux VM implementation collides with the aliasing rules.

User mappings of shared pages are equivalently aliased.  The kernel's
view of user pages is a non-equivalent alias.  We could (ab)use kmap()
to ensure the kernel only accesses user pages through equivalent aliases,
but that requires quite some work.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Joel Soete <joel.soete@tiscali.be>
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Jan-Benedict Glaw wrote:

>On Fri, 2003-08-08 07:46:24 +0000, Joel Soete <joel.soete@tiscali.be>
>wrote in message <3F335550.3030804@tiscali.be>:
>  
>
>>geos@canada.com wrote:
>>    
>>
>
>  
>
>>But to load modules, they have to be build for the kernel you are 
>>running (I think that will change in 2.6). So the only  think to do now 
>>    
>>
>
>I'm quite sure that won't change, ever. Linux, if it's compatible to
>itself at all, has got "only" a source compatible API. You're somewhat
>on a more save side if you're using symbol versioning, but if you force
>a module to load (into a kernel of different version or even of
>different configuration), you may loose. Right now or sometime later:)
>
>That's what "tainting" was ment for:)
>
>MfG, JBG
>
>  
>
Sorry for this confuion I do have missunderstood some discussion on the 
subject, my bad :(

Thanks for those clarification,
    Joel



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From: Joel Soete <joel.soete@tiscali.be>
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Subject: Re: [parisc-linux] K360 with 64 bit kernel?
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Gustavo Zacarias wrote:

>
> Hi.
> Has anyone managed to boot a K360 with a 64 bit kernel?
> The machine works just fine with a 32 bit one.
> The problem is the machine getting stuck just after the ncr53c8xxx 
> driver with a bunch of scsi timeouts. 

hmm could you launch a toc at this stage, after the reboot grab the 
piminfo and analyse it with dump_analayser.sh
(available http://cvs.parisc-linux.org/build-tools/ with a.c too)

Thanks,
    Joel




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Gentoo is running fine in 64 bit on a few test boxes we have.
Irc.us.freenode.net #gentoo-hppa Gmsoft is the best source of help



On 8/8/03 3:44 PM, "Joel Soete" <joel.soete@tiscali.be> wrote:

> Gustavo Zacarias wrote:
> 
>> 
>> Hi.
>> Has anyone managed to boot a K360 with a 64 bit kernel?
>> The machine works just fine with a 32 bit one.
>> The problem is the machine getting stuck just after the ncr53c8xxx
>> driver with a bunch of scsi timeouts.
> 
> hmm could you launch a toc at this stage, after the reboot grab the
> piminfo and analyse it with dump_analayser.sh
> (available http://cvs.parisc-linux.org/build-tools/ with a.c too)
> 
> Thanks,
>   Joel
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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Richard Todd wrote:

> Gentoo is running fine in 64 bit on a few test boxes we have.
> Irc.us.freenode.net #gentoo-hppa Gmsoft is the best source of help

I'm running gentoo and talking with Gmsoft on irc also :)
Basically he has no clue on this, they didn't test much on K models.
And i forgot to mention that the debian netinst testing ISOs (PDC 
console of course) from parisc-linux.org also fail this way.
Mostly sounds like the zalon driver isn't 64 bit clean since the kernel 
just gets stuck without any kind of oops or anything.



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Grant Grundler wrote:

>BTW, this discussion really belongs on parisc-linux.org mailing list.
>It's not specific to debian-hppa and is very kernel centric.
>
>On Fri, Aug 08, 2003 at 09:10:44AM +0000, Joel Soete wrote:
>  
>
>>>IIRC, "non-equivalently mapped aliases" 
>>>      
>>>
>
>  
>
>>Is there much more detailed public doc some where about this stuff?
>>    
>>
>
>sorry - I don't understand the problems well enough.
>The PA 2.0 arch book might describe the cache behaviors sufficiently
>to determine this will be a problem.
>
>  
>
>>>BTW< this topic has been thoroughly discussed on parisc-linux
>>>mailing list. See www.parisc-linux.org mailing list archives.
>>>      
>>>
>
>google search for
>	equivalent mapped [parisc-linux site:lists.parisc-linux.org]
>
>yielded the original thread from Jerry Huck:
>
>http://lists.parisc-linux.org/pipermail/parisc-linux/1999-December/008101.html
>
I see I was not yet in the list; at this very moment I was still battle 
to build a kernel from hpux and the first cd safe me :)

>
>I only partially understand what Jerry talking about and have no idea
>how linux VM implementation collides with the aliasing rules.
>
>
>Bjorn Helgaas posted a another thread two years later that might
>be more helpful since it's specific to superdome (AFAIK same problems
>as with N-class and L3000):
>
>http://lists.parisc-linux.org/pipermail/parisc-linux/2001-April/012388.html
>
>I didn't see any direct followup to Bjorn's mail in the archive though
>some discussion did occur in other forums (much later).
>
>  
>
Well better starting point I will gona check,

Thanks a lot,
    Joel




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On Friday 08 August 2003 10:37 am, Grant Grundler wrote:
> google search for
> 	equivalent mapped [parisc-linux site:lists.parisc-linux.org]
> 
> yielded the original thread from Jerry Huck:
> 
> http://lists.parisc-linux.org/pipermail/parisc-linux/1999-December/008101.html
> 
> I only partially understand what Jerry talking about and have no idea
> how linux VM implementation collides with the aliasing rules.
> 
> 
> Bjorn Helgaas posted a another thread two years later that might
> be more helpful since it's specific to superdome (AFAIK same problems
> as with N-class and L3000):
> 
> http://lists.parisc-linux.org/pipermail/parisc-linux/2001-April/012388.html

For archive crawlers, here's a link to Willy's idea for using kmap to
deal with this problem:

http://lists.parisc-linux.org/pipermail/parisc-linux/2002-March/015826.html



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From: Gerrit Pape <pape@smarden.org>
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Subject: Re: [parisc-linux] Re: Bug#200619: gcc: parisc: compiling dietlibc-dev with -Os caus
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reassign 200619 dietlibc
retitle 200619 dietlibc: parisc: bad stat struct mapping
thanks

On Fri, Jul 25, 2003 at 10:21:26PM -0400, John David Anglin wrote:
> > At the fstat call we have the following values:
> > 
> > Breakpoint 11, 0x00010b10 in __stdio_init_file_nothreads ()
> 
> Carlos O'Donell and myself looked at this problem this afternoon.  This
> is a dietlib problem.  Dietlib is not using the correct kernel_stat
> mapping for parisc.  They appear to be using the i386 mapping.  They
> need to look at /libc/sysdeps/unix/sysv/linux/xstatconv.c and the
> hppa/kernel_stat.h header in glibc.

Yes, this seems to be the cause of the problems, and needs to be fixed
in the dietlibc.  Thanks a lot for your time looking into this, and your
valuable support.

Regards, Gerrit.


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On Thu, Aug 07, 2003 at 11:11:48AM -0600, bame@hp.com wrote:
> The linux-2.6 tree is now ready for business and the linux-2.5 tree is
> frozen.  Tarball (which could be used to seed a CVS tree) and patch
> at the usual place:
> 
>     http://cvs.parisc-linux.org/download/linux-2.6/
> 
> FYI We are using a different CVS branch architecture which should be
> completely transparent most of the time.  I'll get a description of
> it out soon.

OK.  Some files were missing from the initial import, so I added them.

However, I can't get a linus branch out of it:

willy@palinux:~/merge$ cvs -Q co -rlinus linux-2.6
willy@palinux:~/merge$ find linux-2.6
linux-2.6
linux-2.6/CVS
linux-2.6/CVS/Root
linux-2.6/CVS/Repository
linux-2.6/CVS/Entries
linux-2.6/CVS/Tag
willy@palinux:~/merge$ cat linux-2.6/CVS/Tag 
Tlinus

I suspect this will hinder using cvs-import to add 2.6.0-test3.
Can you help?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi all,
This started out as an issue with glxinfo program in xfree86.

The basic problem is glxinfo (C program) links against libGLU.so
(C++ built library). But glxinfo fails to link using gcc:
...
gcc -o glxinfo -g -O -ansi -pedantic -Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wundef     -L../../exports/lib glxinfo.o -lGLU -lGL -lXext -lX11  -lpthread -lm -Wl,-rpath-link,../../exports/lib
../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Resume@GCC_3.0'
../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Register@GCC_3.0'
/usr/bin/../lib/libstdc++.so.5: undefined reference to `_Unwind_SjLj_RaiseException@GCC_3.0'
../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Unregister@GCC_3.0'
/usr/bin/../lib/libstdc++.so.5: undefined reference to `_Unwind_SjLj_Resume_or_Rethrow@GCC_3.3'
collect2: ld returned 1 exit status
...


If I use g++ instead, glxinfo links just fine since libgcc_eh.a gets
picked up automagically. But it seems wrong to require a C program
link using g++.

Is libGLU.so getting built wrong?  (ie resolved in libGLU.so directly)
Or should C programs not use C++ built libs? (How can the author know?)
Or is this a bug in gcc/binutils? (not picking up libgcc_eh.a)

This might be a generic problem since a few other libs on
my box have _Unwind_SjLj_Resume (for example) unresolved:

libasprintf.a
libgmpxx.a
libncurses++.a

thanks,
grant


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Hi,
The IA-64 Linux kernel has a concept of affined IRQs, wherein IRQs can
be bound/affined to particular CPUs. The affinity information shows up
in '/proc/irq/#/smp_affinity'. I cannot see any affinity of IRQs to CPUs
in PA ( iosapic.c and irq.c).. Is my understanding correct?
Regards,
Naresh.



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Hi Grant,

> Hi all,
> This started out as an issue with glxinfo program in xfree86.
>
>The basic problem is glxinfo (C program) links against libGLU.so
>(C++ built library). But glxinfo fails to link using gcc:
Which gcc release do you used? (i experiment such a pb with gcc-3.0)
[2 weeks ago, Jul 31 exactly, I play to rebuild this pkg with gcc3.3 but
do not encounter any pb?]

hth,
Joel

------------------------------------------------------
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On s'habitue vite  payer son ADSL moins cher!
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On Mon, 11 Aug 2003 12:24:10 +0530
Naresh <knaresh@india.hp.com> wrote:

> Hi,
> The IA-64 Linux kernel has a concept of affined IRQs, wherein IRQs can
> be bound/affined to particular CPUs. The affinity information shows up
> in '/proc/irq/#/smp_affinity'. I cannot see any affinity of IRQs to CPUs
> in PA ( iosapic.c and irq.c).. Is my understanding correct?
> Regards,
> Naresh.

This has to be implemented for parisc and is on my todo list ;)

(BTW, on vacation till Aug 25th.)


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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Xref: news.gmane.org gmane.linux.ports.parisc:19157

A couple of questions:
1. Do does this mean interrupts can go to any CPU?
2. If a CPU on an SMP system is stopped or its interrupts are blocked, will
its interrupts automatically be serviced on another online CPU, due to their
non-affining nature?
Regards,
Naresh.

Thibaut VARENE wrote:

> > Hi,
> > The IA-64 Linux kernel has a concept of affined IRQs, wherein IRQs can
> > be bound/affined to particular CPUs. The affinity information shows up
> > in '/proc/irq/#/smp_affinity'. I cannot see any affinity of IRQs to CPUs
> > in PA ( iosapic.c and irq.c).. Is my understanding correct?
> > Regards,
> > Naresh.
>
> This has to be implemented for parisc and is on my todo list ;)
>
> (BTW, on vacation till Aug 25th.)
>
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://pateam.esiee.fr/
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Le lundi, 11 ao=FB 2003, =E0 14:33 Europe/Paris, Naresh a =E9crit :

> A couple of questions:
> 1. Do does this mean interrupts can go to any CPU?

there are several cases, depending on the hardware.
For instance, on A500, IRQs are distributed to both CPUs, on J5000,=20
only one of the two CPUs gets all IRQs.
This is IOSAPIC programmation that has to be reviewed:

on J5000:
[varenet@k2000 ~]$ uname -a
Linux k2000 2.4.20-pa18 #1 SMP Sun Jan 12 02:41:51 CET 2003 parisc64=20
GNU/Linux
[varenet@k2000 ~]$ cat /proc/interrupts
           CPU00      CPU01
  64: 1053803311 1053803113      PARISC-CPU  timer
  65:    2598316   12633504      PARISC-CPU  IPI
  66:   68320843          0      PARISC-CPU  IO-SAPIC00-L2
  67:          0          0      PARISC-CPU  IO-SAPIC00-L3
  68:        326          0      PARISC-CPU  IO-SAPIC00-L0
  69:          0          0      PARISC-CPU  IO-SAPIC00-L1
  70:    6616979          0      PARISC-CPU  IO-SAPIC00-L1
128:        326          0      IO-SAPIC00  SuperIO
129:    6616979          0      IO-SAPIC00  sym53c8xx, sym53c8xx
130:   68320843          0      IO-SAPIC00  eth0
195:        323          0         SuperIO  serial
199:          3          0         SuperIO  ide0

on A500:
[varenet@mkhppa3 ~]$ uname -a
Linux mkhppa3 2.4.20-pa28 #1 SMP Sun Mar 9 23:56:53 CET 2003 parisc64=20
GNU/Linux
[varenet@mkhppa3 ~]$ cat /proc/interrupts
           CPU00      CPU01
  64:  727337429  727336565      PARISC-CPU  timer
  65:   31826972   39174091      PARISC-CPU  IPI
  66:   42581516          0      PARISC-CPU  IO-SAPIC00-L0
  67:          0         30      PARISC-CPU  IO-SAPIC00-L1
  68:          0          0      PARISC-CPU  IO-SAPIC00-L2
  69:          0     696338      PARISC-CPU  IO-SAPIC00-L2
  70:    3672511          0      PARISC-CPU  IO-SAPIC00-L3
  71:          0        209      PARISC-CPU  IO-SAPIC00-L4
  72:          0          0      PARISC-CPU  IO-SAPIC00-L5
128:   42581516          0      IO-SAPIC00  eth0
129:          0         30      IO-SAPIC00  sym53c8xx
130:          0     696338      IO-SAPIC00  sym53c8xx, sym53c8xx
131:    3672511          0      IO-SAPIC00  sym53c8xx
132:          0        209      IO-SAPIC00  serial


> 2. If a CPU on an SMP system is stopped or its interrupts are blocked,=20=

> will
> its interrupts automatically be serviced on another online CPU, due to=20=

> their
> non-affining nature?

CPU deconfiguration is also on my todo list ;)
So you can't stop a CPU on a PARISC SMP system atm.
the second part of the question is an iodood (Grant Grundler ;)=20
question, but to my understanding IRQs won't probably be serviced by=20
another CPU unless the IOSAPIC is reprogrammed to do so.

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

> Regards,
> Naresh.
>
> Thibaut VARENE wrote:
>
>>> Hi,
>>> The IA-64 Linux kernel has a concept of affined IRQs, wherein IRQs=20=

>>> can
>>> be bound/affined to particular CPUs. The affinity information shows=20=

>>> up
>>> in '/proc/irq/#/smp_affinity'. I cannot see any affinity of IRQs to=20=

>>> CPUs
>>> in PA ( iosapic.c and irq.c).. Is my understanding correct?
>>> Regards,
>>> Naresh.
>>
>> This has to be implemented for parisc and is on my todo list ;)
>>
>> (BTW, on vacation till Aug 25th.)
>>
>> Thibaut VARENE
>> The PA/Linux ESIEE Team
>> http://pateam.esiee.fr/
>> _______________________________________________
>> parisc-linux mailing list
>> parisc-linux@lists.parisc-linux.org
>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
>




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Grant,

> The basic problem is glxinfo (C program) links against libGLU.so
> (C++ built library). But glxinfo fails to link using gcc:
> ...
> gcc -o glxinfo -g -O -ansi -pedantic -Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wundef     -L../../exports/lib glxinfo.o -lGLU -lGL -lXext -lX11  -lpthread -lm -Wl,-rpath-link,../../exports/lib
> ../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Resume@GCC_3.0'
> ../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Register@GCC_3.0'
> /usr/bin/../lib/libstdc++.so.5: undefined reference to `_Unwind_SjLj_RaiseException@GCC_3.0'
> ../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Unregister@GCC_3.0'
> /usr/bin/../lib/libstdc++.so.5: undefined reference to `_Unwind_SjLj_Resume_or_Rethrow@GCC_3.3'
> collect2: ld returned 1 exit status
> ...

All of those should resolve to /lib/libgcc_s.so, which gcc should
include for you.
 
> Is libGLU.so getting built wrong?  (ie resolved in libGLU.so directly)
> Or should C programs not use C++ built libs? (How can the author know?)
> Or is this a bug in gcc/binutils? (not picking up libgcc_eh.a)

Doesn't look like it. It looks more like gcc broke.

> This might be a generic problem since a few other libs on
> my box have _Unwind_SjLj_Resume (for example) unresolved:
> 
> libasprintf.a
> libgmpxx.a
> libncurses++.a

That's fine, but they should be linked against /lib/libgcc_s.so.
Run ldd on them, followed by 'readelf -a <lib>' and you'll see that 
that libgcc_s.so provides the symbols as GLOBAL DEFAULT and versioned 
correctly.

c.



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> The basic problem is glxinfo (C program) links against libGLU.so
> (C++ built library). But glxinfo fails to link using gcc:
> ...
> gcc -o glxinfo -g -O -ansi -pedantic -Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wundef     -L../../exports/lib glxinfo.o -lGLU -lGL -lXext -lX11  -lpthread -lm -Wl,-rpath-link,../../exports/lib
> ../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Resume@GCC_3.0'
> ../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Register@GCC_3.0'
> /usr/bin/../lib/libstdc++.so.5: undefined reference to `_Unwind_SjLj_RaiseException@GCC_3.0'
> ../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Unregister@GCC_3.0'
> /usr/bin/../lib/libstdc++.so.5: undefined reference to `_Unwind_SjLj_Resume_or_Rethrow@GCC_3.3'
> collect2: ld returned 1 exit status
> ...

Did you do the build with one of my private builds of GCC?  They were built
with dwarf2 exception support and don't have these symbols in libgcc_s.so.1.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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>
>For archive crawlers, here's a link to Willy's idea for using kmap to
> 
>deal with this problem:
>
>http://lists.parisc-linux.org/pipermail/parisc-linux/2002-March/015826.html

Hmm still an hypothesis to confirmed (i read somewhere)?

So I rebuild a 2.4.21-pa9 in smp mode and get the piminfo:

PROCESSOR PIM INFORMATION

Original Product Number:  A3639C
Current Product Number:   A3639C


-------  Processor 1 HPMC Information - PDC Version: 41.28   ------ 

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

HPMC Chassis Codes 

       Chassis Code        Extension 
       ------------        --------- 
       0x0000082000ff6242  0x0000000000000000
       0x1800082011016312  0xcb81000000000000
       0x0000087000ff6292  0x000000ffff800000
       0x6000082013016062  0x2002000000080000
       0x6000082013016072  0x0000000000080000
       0x7000082013016082  0x0000000000192200
       0x6000082013036062  0x2001000000082004
       0x6000082013036072  0x0000000000082000
       0x7000082013036082  0x0000000000992600
       0x6000082070006062  0x0000000000080000
       0x6000082070006072  0x0000000000080000
       0x7000082070006082  0x0000000000192200
       0x6000082070016062  0x0000000000000800
       0x6000082070016072  0x0000000000000800
       0x7000082070016082  0x00000000001a4400
       0x0000080080006310  0x0000000000000001
       0x7000082082006333  0x0000000000b92200
       0x7000082082016333  0x0000000000b92200
       0x000008008000631f  0x0000000000000000
       

General Registers 0 - 31
00-03  0000000000000000  000000001040d000  000000001014e9e0  000000008f3ceec0
04-07  000000000012bcc8  0000000000000001  000000008f3c6bc0  0000000000000001
08-11  0000000010527470  0000000010527470  000000000000001a  00000000134bd468
12-15  000000007f1deb25  000000008f3c6bc0  000000000012acc8  000000008f3b1950
16-19  000000008f3c85b8  0000000000004000  0000000000016000  0000000000000180
20-23  000000008f3ceec0  000000000000003f  0000000000000000  0000000000000040
24-27  000000007f1deb27  000000000012acc8  000000008f3c6bc0  0000000010527470
28-31  000000000800000f  000000008f3c8ef0  000000008f3c8f40  0000000000008ba3


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000006  0000000000000000  00000000000000c0  0000000000000035
12-15  0000000000000000  0000000000000000  0000000000107000  ffe0000000000000
16-19  0000001f0ff8e1f0  0000000000000000  000000001010b8c8  000000000fc212c1
20-23  00000000103401fc  00000000f23c8f30  0000007f0804ff0f  c000000000000000
24-27  0000000000453000  000000007f3c7000  0000000000041020  000000ffff95c810
28-31  5555555555555555  5555555555555555  000000008f3c8000  0000000010590000

Space Registers 0 - 7
00-03  00000180          00000180          00000000          00000180
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x000000001010b8cc
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0010c03b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0xfffffffffed25000


Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000010586ec0  0000000000000002  00000000104c7b68  0000000000000420
08-11  0000000000000000  0000000000000802  0000000010527470  000000001058a000
12-15  00000000135a0000  0000000000000000  000000001017dc84  00000000103ceb94
16-19  00000000000009f0  000000008facf000  0000000010527470  00000000135a0000
20-23  00000000103aa184  fffffffffffffff4  00000000003f45a2  000000000000ba2e
24-27  0000000400000000  00009999035a0b70  00000000035a0b78  000000001040d980
28-31  000000001040d980  00000000ff915e20  0000000010185248  0000000000000000


Check Summary                = 0xcb81000000000000
Available Memory             = 0x0000000100000000
CPU Diagnose Register 2      = 0x0301010800802004
CPU Status Register 0        = 0x2640c24000000000
CPU Status Register 1        = 0x8000200000000000
SADD LOG                     = 0xf4e2930000429440
Read Short LOG               = 0xc18200ff80000002



-----------------  DEW 1 HPMC Information -  ------ 

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

Runway Control Log Reg            = 0x00927b0000000000
Runway Address Data Log Reg Odd   = 0xc0aa1010c4a61010
Runway Address Data Log Reg Even  = 0xc8a61010cca61010
Runway Address Log Reg            = 0x00000000000000f4
Runway Broad Error Log Reg        = 0x000000000000005c

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
                ERR_ERROR       X                X       

Merced Bus Requestor Address      = 0x0000000000000000
Merced Bus Target Address         = 0x0000000000000000
Merced Bus Responder Address      = 0x0000000000000000
Merced Error Status Reg           = 0x2002000000080000
Merced Error Overflow Reg         = 0x0000000000080000
Merced AERR Addr1 Log Reg         = 0x00006000ff86fdc0
Merced AERR Addr2 Log Reg         = 0x00008000078fff08
Merced DERR  Log Reg              = 0x0001000000000000
Merced Error Syndrome Reg         = 0x00000000000000c0


-------  Processor 1  LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



-------  Processor 1  TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000000000000
CPU State                    = 0x00000000



-------  Processor 3 HPMC Information - PDC Version: 41.28   ------ 

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

HPMC Chassis Codes 

       Chassis Code        Extension 
       ------------        --------- 
       0x0000082000ff6242  0x0000000000000000
       0x1800082011036322  0xcb81800000000000
       

General Registers 0 - 31
00-03  0000000000000000  0000000010536c70  0000000010115e58  00000000103aaf64
04-07  0000000000000002  00000000103ac494  0000000000000001  0000000010527470
08-11  0000000000000001  000000008f1f45b8  000000008f3cebc0  000000001057dcb0
12-15  00000000faf005f0  0000000000028280  0000000000020000  00000000faf00548
16-19  00000000faf005d0  0000000000004000  0000000000016000  0000000000000001
20-23  0000000000006061  000000001044ec08  0000000010539c70  000000001041b130
24-27  0000000000000000  000000000800000f  0000000010527c70  0000000010527470
28-31  0000000000000480  000000008f1f4e30  000000008f1f4e40  000000001052a470


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000010  0000000000000000  00000000000000c0  0000000000000036
12-15  0000000000000000  0000000000000000  0000000000107000  ffe0000000000000
16-19  0000001f0fd05cbd  0000000000000000  0000000010116050  0000000008000240
20-23  0000000000000000  0000000000000000  000000000806070f  0000000000000000
24-27  0000000000453000  000000007f1f2000  0000000000041020  000000ffff95c810
28-31  000000ffff95c810  5555555555555555  000000008f1f4000  0000000000008020

Space Registers 0 - 7
00-03  00000400          00000400          00000000          00000400
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000010116054
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030000d
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffed2d000
System Requestor Address     = 0x000000fffed2c000


Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000010586ec0  0000000000000002  00000000104c7b68  0000000000000420
08-11  0000000000000000  0000000000000802  0000000010527470  000000001058a000
12-15  00000000135a0000  0000000000000000  000000001017dc84  00000000103ceb94
16-19  00000000000009f0  000000008facf000  0000000010527470  00000000135a0000
20-23  00000000103aa184  fffffffffffffff4  00000000003f45a2  000000000000ba2e
24-27  0000999900000000  00009999035a0b70  00000000035a0b78  000000001040d980
28-31  000000001040d980  00000000ff915e20  0000000010185248  0000000000000016


Check Summary                = 0xcb81800000000000
Available Memory             = 0x0000000100000000
CPU Diagnose Register 2      = 0x0301030800802004
CPU Status Register 0        = 0x3640c24000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x48e0000000000002
Read Short LOG               = 0xc18080ff80080014



-----------------  DEW 3 HPMC Information -  ------ 

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

Runway Control Log Reg            = 0x0006720000000000
Runway Address Data Log Reg Odd   = 0xfffffffffffc3f00
Runway Address Data Log Reg Even  = 0xfffffffffffc3f00
Runway Address Log Reg            = 0x0000000000000048
Runway Broad Error Log Reg        = 0x00000000000000dc

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X             ERR_ERROR       X            X   X       

Merced Bus Requestor Address      = 0x0000000000000000
Merced Bus Target Address         = 0x0000000000000000
Merced Bus Responder Address      = 0x0000000000000000
Merced Error Status Reg           = 0x2001000000082004
Merced Error Overflow Reg         = 0x0000000000082000
Merced AERR Addr1 Log Reg         = 0x00c0000000300000
Merced AERR Addr2 Log Reg         = 0x0000000000f00000
Merced DERR  Log Reg              = 0x00c1100000000000
Merced Error Syndrome Reg         = 0x0000000052000000


-------  Processor 3  LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



-------  Processor 3  TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000000000000
CPU State                    = 0x00000000


--------------  Memory Error Log Information  --------------

Bus 0 Log Information

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
                ERR_ERROR       X                X       

Bus Requestor Address      = 0x0000000000000000
Bus Target Address         = 0x0000000000000000
Bus Responder Address      = 0x0000000000000000

Error Status Reg           = 0x0000000000080000
Error Overflow Reg         = 0x0000000000080000
AERR Address 1 Log Reg     = 0x0000000000000000
AERR Address 2 Log Reg     = 0xf800000000000000
FERR  Log Reg              = 0x0000000000000000
DERR  Log Reg              = 0x000112800051cdc0
Error Syndrome Reg         = 0x0000000000000000



 Address/Control Parity Error Registers  

   Address/Control Parity Error Bit (AE) Not Set 



Bus 1 Log Information

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_TIMEOUT   X               X           

Bus Requestor Address      = 0xfffffffffed2c000
Bus Target Address         = 0x00000000f000a000
Bus Responder Address      = 0x0000000000000000

Error Status Reg           = 0x0000000000000800
Error Overflow Reg         = 0x0000000000000800
AERR Address 1 Log Reg     = 0x08006000f000a000
AERR Address 2 Log Reg     = 0x6000b0002f700a10
FERR  Log Reg              = 0x0000000000000000
DERR  Log Reg              = 0x0000000000000000
Error Syndrome Reg         = 0x0000000000000000



 Address/Control Parity Error Registers  

   Address/Control Parity Error Bit (AE) Not Set 



------------  I/O Module Error Log Information  ------------

Summary of IO subsystem log entries
-----------------------------------
                        Phys Loc             Vendor  Device   Severity
Description             (hex)                 Id      Id      CORR UNC FE
 CW
-----------             -----                ------  ------   ----------------
System Bus Adapter SB  0x000000ffffffff82   0x103c  0x1050              X
System Bus Adapter SB  0x000000ffffffff82   0x103c  0x1050              X


Detail display of IO subsystem log entries
------------------------------------------

System Bus Adapter -- System Bus Interface
------------------------------------------

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X       X     ERR_ERROR       X                X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0xfffffffffed00000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000007ff0034

System Bus Adapter -- System Bus Interface
------------------------------------------

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X       X     ERR_ERROR       X                X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0xfffffffffed40000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff01

Module Error Register   = 0x0000000007ff0034



which I submit to the PimAnalyser of my own (based on dump_analyser.sh and
still need a lot of improvement):

-------  Processor 1 HPMC Information - PDC Version: 41.28   ------ 

GR of CPU[1]
00-03  0000000000000000  000000001040d000  000000001014e9e0  000000008f3ceec0
04-07  000000000012bcc8  0000000000000001  000000008f3c6bc0  0000000000000001
08-11  0000000010527470  0000000010527470  000000000000001a  00000000134bd468
12-15  000000007f1deb25  000000008f3c6bc0  000000000012acc8  000000008f3b1950
16-19  000000008f3c85b8  0000000000004000  0000000000016000  0000000000000180
20-23  000000008f3ceec0  000000000000003f  0000000000000000  0000000000000040
24-27  000000007f1deb27  000000000012acc8  000000008f3c6bc0  0000000010527470
28-31  000000000800000f  000000008f3c8ef0  000000008f3c8f40  0000000000008ba3

GR[02] == rp = 000000001014e9e0

Func: do_wp_page, Off: 0x5d8, Addr: 0x1014e9e0

    1014e9e0:	08 09 02 5b 	copy r9,dp
    1014e9e4:	34 73 00 90 	ldo 48(r3),r19
    1014e9e8:	0e 7e 12 a0 	stw,ma sp,0(,r19)
    1014e9ec:	e8 1f 19 f5 	b,l 1014e6ec <do_wp_page+0x2e4>,r0

GR[22] == t1(32bits) == arg4(64bits) = 0000000000000000

GR[21] == t2(32bits) == arg5(64bits) = 000000000000003f

GR[20] == t3(32bits) == arg6(64bits) = 000000008f3ceec0

GR[19] == t4(32bits) == arg7(64bits) = 0000000000000180

GR[26] == arg0 = 000000008f3c6bc0

GR[25] == arg1 = 000000000012acc8

GR[24] == arg2 = 000000007f1deb27

GR[23] == arg3 = 0000000000000040

GR[27] == dp = 0000000010527470

Func: __gp, Off: 0x0, Addr: 0x10527470


GR[28] == ret0 = 000000000800000f

GR[29] == ret1 or sl = 000000008f3c8ef0

GR[30] == sp = 000000008f3c8f40

GR[31] == ble rp = 0000000000008ba3
	Not parsable address!

CR of CPU[1]
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000006  0000000000000000  00000000000000c0  0000000000000035
12-15  0000000000000000  0000000000000000  0000000000107000  ffe0000000000000
16-19  0000001f0ff8e1f0  0000000000000000  000000001010b8c8  000000000fc212c1
20-23  00000000103401fc  00000000f23c8f30  0000007f0804ff0f  c000000000000000
24-27  0000000000453000  000000007f3c7000  0000000000041020  000000ffff95c810
28-31  5555555555555555  5555555555555555  000000008f3c8000  0000000010590000

CR[00] == rctr = 0000000000000000

CR[08] == (Protection ID) pidr1 = 0000000000000006

CR[10] == ccr = 00000000000000c0

CR[11] == sar = 0000000000000035

CR[14] == iva = 0000000000107000

CR[15] == eiem = ffe0000000000000

CR[16] == itmr = 0000001f0ff8e1f0

CR[17] == pcsq = 0000000000000000

CR[18] == pcoq = 000000001010b8c8

CR[19] == iir = 000000000fc212c1

CR[20] == isr = 00000000103401fc

CR[21] == ior = 00000000f23c8f30

CR[22] == ipsw = 0000007f0804ff0f

CR[23] == eirw = c000000000000000

CR[24] == tr0 (ptov) = 0000000000453000

CR[25] == tr1 (vtop) = 000000007f3c7000

CR[26] == tr2 = 0000000000041020

CR[27] == tr3 = 000000ffff95c810

CR[28] == tr4 = 5555555555555555

CR[29] == tr5 = 5555555555555555

CR[30] == tr6 = 000000008f3c8000

CR[31] == tr7 = 0000000010590000

SR of CPU[1]
00-03  00000180          00000180          00000000          00000180
04-07  00000000          00000000          00000000          00000000
Need much more work !!!

SR[00] == ts0 = 00000180

SR[01] == ts1 = 00000180

SR[03] == cpp = 00000180
	Not parsable address!
...
IIA Offset (back entry)      = 0x000000001010b8cc
...

e.g. IAOQ = 0x000000001010b8cc

FPR of CPU[1]
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000010586ec0  0000000000000002  00000000104c7b68  0000000000000420
08-11  0000000000000000  0000000000000802  0000000010527470  000000001058a000
12-15  00000000135a0000  0000000000000000  000000001017dc84  00000000103ceb94
16-19  00000000000009f0  000000008facf000  0000000010527470  00000000135a0000
20-23  00000000103aa184  fffffffffffffff4  00000000003f45a2  000000000000ba2e
24-27  0000000400000000  00009999035a0b70  00000000035a0b78  000000001040d980
28-31  000000001040d980  00000000ff915e20  0000000010185248  0000000000000000

Parse IAOQ = 0x000000001010b8cc for CPU[1]

Func: update_mmu_cache, Off: 0x4, Addr: 0x1010b8cc

    1010b8c0:	37 de 3f 01 	ldo -80(sp),sp
    1010b8c4:	00 00 00 00 	break 0,0
	...
000000001010b8c8 <update_mmu_cache>:

	...
    1010b8c8:	0f c2 12 c1 	std rp,-10(,sp)
    1010b8cc:	2b 6a 20 00 	addil 15000,dp,%r1
-------  Processor 3 HPMC Information - PDC Version: 41.28   ------ 

GR of CPU[3]
00-03  0000000000000000  0000000010536c70  0000000010115e58  00000000103aaf64
04-07  0000000000000002  00000000103ac494  0000000000000001  0000000010527470
08-11  0000000000000001  000000008f1f45b8  000000008f3cebc0  000000001057dcb0
12-15  00000000faf005f0  0000000000028280  0000000000020000  00000000faf00548
16-19  00000000faf005d0  0000000000004000  0000000000016000  0000000000000001
20-23  0000000000006061  000000001044ec08  0000000010539c70  000000001041b130
24-27  0000000000000000  000000000800000f  0000000010527c70  0000000010527470
28-31  0000000000000480  000000008f1f4e30  000000008f1f4e40  000000001052a470

GR[02] == rp = 0000000010115e58

Func: smp_call_function, Off: 0x78, Addr: 0x10115e58

    10115e50:	e8 00 b0 60 	b,l 10116688 <__atomic_set>,%r2
    10115e54:	37 39 3f ff 	ldo -1(r25),r25
    10115e58:	84 80 24 58 	cmpib,= 0,r4,1011608c <smp_call_function+0x2ac>
    10115e5c:	08 07 02 5b 	copy r7,dp

GR[22] == t1(32bits) == arg4(64bits) = 0000000010539c70

GR[21] == t2(32bits) == arg5(64bits) = 000000001044ec08

GR[20] == t3(32bits) == arg6(64bits) = 0000000000006061

GR[19] == t4(32bits) == arg7(64bits) = 0000000000000001

GR[26] == arg0 = 0000000010527c70

GR[25] == arg1 = 000000000800000f

GR[24] == arg2 = 0000000000000000

GR[23] == arg3 = 000000001041b130

GR[27] == dp = 0000000010527470

Func: __gp, Off: 0x0, Addr: 0x10527470


GR[28] == ret0 = 0000000000000480

GR[29] == ret1 or sl = 000000008f1f4e30

GR[30] == sp = 000000008f1f4e40

GR[31] == ble rp = 000000001052a470

Func: __gp, Off: 0x3000, Addr: 0x1052a470


CR of CPU[3]
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000010  0000000000000000  00000000000000c0  0000000000000036
12-15  0000000000000000  0000000000000000  0000000000107000  ffe0000000000000
16-19  0000001f0fd05cbd  0000000000000000  0000000010116050  0000000008000240
20-23  0000000000000000  0000000000000000  000000000806070f  0000000000000000
24-27  0000000000453000  000000007f1f2000  0000000000041020  000000ffff95c810
28-31  000000ffff95c810  5555555555555555  000000008f1f4000  0000000000008020

CR[00] == rctr = 0000000000000000

CR[08] == (Protection ID) pidr1 = 0000000000000010

CR[10] == ccr = 00000000000000c0

CR[11] == sar = 0000000000000036

CR[14] == iva = 0000000000107000

CR[15] == eiem = ffe0000000000000

CR[16] == itmr = 0000001f0fd05cbd

CR[17] == pcsq = 0000000000000000

CR[18] == pcoq = 0000000010116050

CR[19] == iir = 0000000008000240

CR[20] == isr = 0000000000000000

CR[21] == ior = 0000000000000000

CR[22] == ipsw = 000000000806070f

CR[23] == eirw = 0000000000000000

CR[24] == tr0 (ptov) = 0000000000453000

CR[25] == tr1 (vtop) = 000000007f1f2000

CR[26] == tr2 = 0000000000041020

CR[27] == tr3 = 000000ffff95c810

CR[28] == tr4 = 000000ffff95c810

CR[29] == tr5 = 5555555555555555

CR[30] == tr6 = 000000008f1f4000

CR[31] == tr7 = 0000000000008020

SR of CPU[3]
00-03  00000400          00000400          00000000          00000400
04-07  00000000          00000000          00000000          00000000
Need much more work !!!

SR[00] == ts0 = 00000400

SR[01] == ts1 = 00000400

SR[03] == cpp = 00000400
	Not parsable address!
...
IIA Offset (back entry)      = 0x0000000010116054
...

e.g. IAOQ = 0x0000000010116054

FPR of CPU[3]
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000010586ec0  0000000000000002  00000000104c7b68  0000000000000420
08-11  0000000000000000  0000000000000802  0000000010527470  000000001058a000
12-15  00000000135a0000  0000000000000000  000000001017dc84  00000000103ceb94
16-19  00000000000009f0  000000008facf000  0000000010527470  00000000135a0000
20-23  00000000103aa184  fffffffffffffff4  00000000003f45a2  000000000000ba2e
24-27  0000999900000000  00009999035a0b70  00000000035a0b78  000000001040d980
28-31  000000001040d980  00000000ff915e20  0000000010185248  0000000000000016

Parse IAOQ = 0x0000000010116054 for CPU[3]

Func: smp_call_function, Off: 0x274, Addr: 0x10116054

    10116054:	0e a0 10 d3 	ldd 0(,r21),r19
    10116058:	0a 93 04 33 	sub r19,r20,r19
    1011605c:	ee 60 ff c5 	cmpib,*> 0,r19,10116044 <smp_call_function+0x264>


Does it help to confirm Willy's idea (i think so but not quiet sure)?

Thanks,
    Joel


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On Mon, Aug 11, 2003 at 10:24:57AM -0400, John David Anglin wrote:
> Did you do the build with one of my private builds of GCC?  They were built
> with dwarf2 exception support and don't have these symbols in libgcc_s.so.1.

nope.  I used:

grundler@gsyprf11:/usr/src/xfree86-4.2.1/build-tree/xc$ gcc -v
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3.1/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,pascal,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.3.1 20030626 (Debian prerelease)


I upgraded to gcc-3.3/unstable and got the same result when attempting
to build glxinfo by hand.

grant


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On Mon, Aug 11, 2003 at 06:03:03PM +0530, Naresh wrote:
> A couple of questions:
> 1. Do does this mean interrupts can go to any CPU?

Interrupts can be direct at any one CPU.
ia64 and parisc IPI use the same method as IO devices.

The code does a round-robin when assigning IO interrupts to CPUs.
ie assign interrupts to a sequential order of the CPUs.

A minor improvement would be to round-robin based on device class.
But I want this intelligence in user space, not the kernel.
NUMA machines want interrupts directed at CPUs in the same node
where the IO is "hosted".


> 2. If a CPU on an SMP system is stopped or its interrupts are blocked,
> will its interrupts automatically be serviced on another online CPU,

no. The interrupt must be "manually" redirected to another CPU.

> due to their non-affining nature?

Not sure what you mean here.

grant

> Regards,
> Naresh.
> 
> Thibaut VARENE wrote:
> 
> > > Hi,
> > > The IA-64 Linux kernel has a concept of affined IRQs, wherein IRQs can
> > > be bound/affined to particular CPUs. The affinity information shows up
> > > in '/proc/irq/#/smp_affinity'. I cannot see any affinity of IRQs to CPUs
> > > in PA ( iosapic.c and irq.c).. Is my understanding correct?
> > > Regards,
> > > Naresh.
> >
> > This has to be implemented for parisc and is on my todo list ;)
> >
> > (BTW, on vacation till Aug 25th.)
> >
> > Thibaut VARENE
> > The PA/Linux ESIEE Team
> > http://pateam.esiee.fr/
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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On Mon, Aug 11, 2003 at 09:44:49AM -0600, Grant Grundler wrote:
> Interrupts can be direct at any one CPU.
> ia64 and parisc IPI use the same method as IO devices.
> 
> The code does a round-robin when assigning IO interrupts to CPUs.
> ie assign interrupts to a sequential order of the CPUs.
> 
> A minor improvement would be to round-robin based on device class.
> But I want this intelligence in user space, not the kernel.
> NUMA machines want interrupts directed at CPUs in the same node
> where the IO is "hosted".
> 
> > 2. If a CPU on an SMP system is stopped or its interrupts are blocked,
> > will its interrupts automatically be serviced on another online CPU,
> 
> no. The interrupt must be "manually" redirected to another CPU.
> 
> > due to their non-affining nature?
> 
> Not sure what you mean here.

I think there's some confusion here.  I would say that interrupts on
PA-RISC are strongly CPU-affine, but there is currently no mechanism 
for controlling that affinity.  One interrupt will always go to the CPU
it's been programmed for.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Mon, Aug 11, 2003 at 03:44:02PM +0200, Thibaut VAR?NE wrote:
> For instance, on A500, IRQs are distributed to both CPUs, on J5000, 
> only one of the two CPUs gets all IRQs.

I'm pretty sure this is a bug in the j5000 (Legacy PDC) init sequence.
Not a limitation of the j5000 HW.

> but to my understanding IRQs won't probably be serviced by 
> another CPU unless the IOSAPIC is reprogrammed to do so.

correct.

grant


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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: [parisc-linux] b2k & 2.6 progress :)
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Hi all pa,

Good news I reach to boot 2.6.0-test3-pa(pre0) on my b2k (the merge it quiet
straight :) ).

But to do, I remove (by accident) all kind of serial support (8250/16550)
as well as PDC software console support: this is not quiet to boot 
(

Well for serial driver I couldn't help more because system is not accessible
neither by nic nor by serial console. More over the TOC i can get doesn't
give any relevant info :(

OTC with only PDC software console support driver the system cras
 with
following dump:
Stack Dump:
 10078718:  10078718 1fe05600 1fe05000 1007f670 
 10078708:  1fe00bc0 107d4ba0 1ff16000 f0000174 
 100786f8:  f000017c 10334000 10332000 1023a624 
 100786e8:  1073ec80 1043ef7c 00000010 1ffb1720 
 100786d8:  1fe00bc0 1fe00bc4 107d04a8 10078380 
 100786c8:  0000001a 00000000 00000000 f0000174 
 100786b8:  f000017c f00008c4 f0400004 1010631c 
 100786a8:  ffffffff 00000000 103c11c0 10362010 
 10078698:  10447810 10377810 10447904 103715ec 
 10078688:  10375000 1007f670 10078600 00000000 
 10078678:  00000005 00000010 1043ef7c 101204d8 
 10078668:  100783c8 10332000 10056568 10447904 
 10078658:  1073ed7c 10370088 1045bf14 00000000 
 10078648:  00000000 00000001 100785c8 10378834 
 10078638:  10454010 10362010 1fe05000 1021356c 
 10078628:  1ffb1720 00000008 107ab1f0 10447904 
 10078618:  0005000e 100783c8 10078108 00000101 
 10078608:  10362010 0005000e 100785c0 55555555 
 100785f8:  55555555 55555555 55555555 101217f8 
 100785e8:  55555555 55555555 55555555 55555555 
 100785d8:  1ffb1720 00000001 00000004 100785c8 
 100785c8:  104544bc 107ad600 00000004 1047da20 
 100785b8:  1ffb1720 00000000 00000008 1010a088 
 100785a8:  100783c8 1007f670 107ab1f0 00000000 
 10078598:  0002634a 0005000e 100783c8 00000000 
 10078588:  00000000 0005000e 107ab1f0 00000004 
 10078578:  0002634a 55555555 10078554 10078554 
 10078568:  10121f60 1007f670 00000000 55555555 
 10078558:  10078554 10078554 00000000 00000000 
 10078548:  0cb30083 0000000f 0002634a 55555555 
 10078538:  55555555 55555555 55555555 101f3b80 
 10078528:  101f3b7c 00000000 00000000 00000000 
 10078518:  00000000 00000000 00000000 00000000 
 10078508:  00000000 00000000 00000000 55555555 
 100784f8:  55555555 55555555 55555555 55555555 
 100784e8:  55555555 55555555 55555555 55555555 
 100784d8:  55555555 55555555 55555555 55555555 
 100784c8:  55555555 55555555 55555555 55555555 
 100784b8:  55555555 55555555 55555555 55555555 
 100784a8:  55555555 55555555 55555555 55555555 
 10078498:  55555555 55555555 55555555 55555555 
 10078488:  55555555 55555555 55555555 55555555 
 10078478:  55555555 55555555 55555555 55555555 
 10078468:  55555555 55555555 55555555 55555555 
 10078458:  55555555 55555555 55555555 55555555 
 10078448:  55555555 55555555 55555555 55555555 
 10078438:  55555555 55555555 55555555 55555555 
 10078428:  55555555 00000000 00000000 00000000 
 10078418:  0000001f 00000000 0000001f 00000000 
 10078408:  0000001f 24850e06 04100800 101f4920 
 100783f8:  10078380 00000005 1045bf14 10360010 
 100783e8:  1037e8ec 00000000 1007828c 00000002 
 100783d8:  10110e08 10459f04 00000000 00000000 
 100783c8:  f0000174 f000017c f00008c4 f0400004 
 100783b8:  00000000 1007828c 00000000 103c11c0 
 100783a8:  10362010 10447810 1073eb30 00000000 
 10078398:  00000000 00000000 1045bf14 10370088 
 10078388:  101f3b78 1037e810 0004ff0f f0400004 
 10078378:  00000000 ffffffff 00000000 101f3b78 
 10078368:  10362010 10447810 00002acb 00002ac0 
 10078358:  10448a94 00002ac0 0000000f 1044b55a 
 10078348:  1010d308 10000000 0000000f 00000001 
 10078338:  10370088 1045bf14 10768820 00000001 
 10078328:  00000002 1073eb30 10447810 10362010 

Kernel addresses on the stack:
 [<10219520>] as_next_request+0x44/0x54
 [<10106020>] parisc_terminate+0x60/0xb8
 [<1023a624>] scsi_request_fn+0x54/0x2b0
 [<1010631c>] handle_interruption+0x2a4/0x5b4
 [<101204d8>] schedule+0x1e8/0x428
 [<1021356c>] blk_run_queues+0x6c/0x90
 [<101217f8>] io_schedule+0x3c/0x68
 [<1010a088>] intr_check_sig+0x0/0xc
 [<101f3b80>] init_dev+0x64/0x4b8
 [<103c11c0>] start_kernel+0x4/0x1f8
 [<101f3b78>] init_dev+0x5c/0x4b8
 [<101f4694>] tty_open+0x90/0x3a8
 [<10110db4>] pdc_console_write+0x24/0x3c
 [<10161118>] chrdev_open+0xb0/0x14c
 [<10166adc>] may_open+0x58/0x1c8
 [<10156584>] dentry_open+0x12c/0x1b8
 [<10156450>] filp_open+0x68/0x70
 [<101245cc>] printk+0x17c/0x1bc
 [<101568f4>] sys_open+0x70/0xb8
 [<10100428>] init+0x5c/0x144
 [<10109c5c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=26 regs=10078380 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 1037e810 101f3b78 10370088
r04-07  1045bf14 00000000 00000000 00000000
r08-11  1073eb30 10447810 10362010 103c11c0
r12-15  00000000 1007828c 00000000 f0400004
r16-19  f00008c4 f000017c f0000174 00000000
r20-23  00000000 10459f04 10110e08 00000002
r24-27  1007828c 00000000 1037e8ec 10360010
r28-31  1045bf14 00000005 10078380 101f4920
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101f3b7c 101f3b80
 IIR: 0cb30083    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 10078000 CR31: 103b5000
 ORIG_R28: 55555555
 IAOQ[0]: init_dev+0x60/0x4b8
 IAOQ[1]: init_dev+0x64/0x4b8
 RP(r2): init_dev+0x5c/0x4b8


(it seems to be the same pb I encounter some time ago with 2.4 but not had
time to analyse, sorry)

hth,
    Joel




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> read model: posix gcc version 3.3.1 20030626 (Debian prerelease)
>
>
>I upgraded to gcc-3.3/unstable and got the same result when attempting
>to build glxinfo by hand.

well I just distupgrade my box (unstable) this morning, I so relaunched the
dpkg-buildpackage ... let you inform tomorrow (sorry I need place so I removed
buildtree)

Joel

PS: I presume that packages are the same  

palx2000:~# dpkg -l gcc\* libc6\* binutils\*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name                    Version                 Description
+++-=======================-=======================-==============================================================
ii  gcc                     3.3-2                   The GNU C compiler.
ii  gcc-3.0                 3.0.4-16                The GNU C compiler
ii  gcc-3.0-base            3.0.4-16                The GNU Compiler Collection
(base package)
ii  gcc-3.2                 3.2.3-7                 The GNU C compiler
ii  gcc-3.2-base            3.2.3-7                 The GNU Compiler Collection
(base package)
ii  gcc-3.3                 3.3.1-1                 The GNU C compiler
ii  gcc-3.3-base            3.3.1-1                 The GNU Compiler Collection
(base package)
ii  gcc-3.3-doc             3.3.1-1                 Documentation for the
GNU compilers (gcc, gobjc, g++)
ii  gcc-hppa64              3.2.3-0.1               Cross gcc for hppa64
ii  gcc-snapshot            20030728-1              A SNAPSHOT of the GNU
Compiler Collection.
ii  libc6                   2.3.1-17.0.3            GNU C Library: Shared
libraries and Timezone data
ii  libc6-dev               2.3.1-17.0.3            GNU C Library: Development
Libraries and Header Files.
ii  binutils                2.14.90.0.5-0.2         The GNU assembler, linker
and binary utilities
ii  binutils-dev            2.14.90.0.5-0.2         The GNU binary utilities
(BFD development files)

palx2000:~# gcc -v
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3.1/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,pascal,objc,ada,treelang
--prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3
--enable-shared --with-system-zlib --enable-nls --without-included-gettext
--enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug
--enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.3.1 (Debian)


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> I upgraded to gcc-3.3/unstable and got the same result when attempting
> to build glxinfo by hand.

It's not clear what's going on.  Possibly, linking with libgcc.a
is interacting in a bad way with shared libraries linked with
libgcc_s.so.  You can get more info by adding `-Wl,-v' to the link
command.  Adding `-Wl,-debug' to the gcc link command will show
the full `ld' command.

I am certain that the symbols are defined in libgcc_s.so.  It may
be that the linker isn't looking for dependent libraries correctly.
Using the g++ driver or adding `-shared-libgcc' to the link command
should work around the problem.  But I don't think that it should
be necessary.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Mon, Aug 11, 2003 at 01:30:40PM -0400, John David Anglin wrote:
> It's not clear what's going on.  Possibly, linking with libgcc.a
> is interacting in a bad way with shared libraries linked with
> libgcc_s.so.  You can get more info by adding `-Wl,-v' to the link
> command.  Adding `-Wl,-debug' to the gcc link command will show
> the full `ld' command.

-debug output is attached.
`-Wl,-v' only shows the "ld" command. The -debug output has that too.

What's interesting is the "ld" command has "-lgcc-eh" which is where
the missing symbols are defined:
grundler <512>nm libgcc_eh.a | grep _Unwind_SjLj_Resume
0000079c T _Unwind_SjLj_Resume
000008d0 T _Unwind_SjLj_Resume_or_Rethrow
grundler <513>pwd
/usr/lib/gcc-lib/hppa-linux/3.3.1


> I am certain that the symbols are defined in libgcc_s.so.  It may
> be that the linker isn't looking for dependent libraries correctly.

I wonder if "-Wl,-rpath-link,../../exports/lib" is the problem.
I'd normally expect an application to use "-L" to specify additional
lib search paths.

> Using the g++ driver or adding `-shared-libgcc' to the link command
> should work around the problem.  But I don't think that it should
> be necessary.

ok

thanks,
grant

--mP3DRpeJDSE+ciuQ
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="glxinfo.debug"

grundler@gsyprf11:/usr/src/xfree86-4.2.1/build-tree/xc/programs/glxinfo$ gcc -o glxinfo -g -O -ansi -pedantic -Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wundef     -L../../exports/lib glxinfo.o -lGLU -lGL -lXext -lX11  -lpthread -lm -lgcc_eh  -Wl,-rpath-link,../../exports/lib -Wl,-debug
Convert string '/usr/lib/gcc-lib/hppa-linux/3.3.1/:/usr/lib/gcc-lib/hppa-linux/3.3.1/:/usr/lib/gcc-lib/hppa-linux/:/usr/lib/gcc/hppa-linux/3.3.1/:/usr/lib/gcc/hppa-linux/:/usr/lib/gcc-lib/hppa-linux/3.3.1/../../../../hppa-linux/bin/hppa-linux/3.3.1/:/usr/lib/gcc-lib/hppa-linux/3.3.1/../../../../hppa-linux/bin/' into prefixes, separator = ':'
  - add prefix: /usr/lib/gcc-lib/hppa-linux/3.3.1/
  - add prefix: /usr/lib/gcc-lib/hppa-linux/3.3.1/
  - add prefix: /usr/lib/gcc-lib/hppa-linux/
  - add prefix: /usr/lib/gcc/hppa-linux/3.3.1/
  - add prefix: /usr/lib/gcc/hppa-linux/
  - add prefix: /usr/lib/gcc-lib/hppa-linux/3.3.1/../../../../hppa-linux/bin/hppa-linux/3.3.1/
  - add prefix: /usr/lib/gcc-lib/hppa-linux/3.3.1/../../../../hppa-linux/bin/
Convert string '/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/home/grundler/bin' into prefixes, separator = ':'
  - add prefix: /usr/local/bin/
  - add prefix: /usr/bin/
  - add prefix: /bin/
  - add prefix: /usr/bin/X11/
  - add prefix: /usr/games/
  - add prefix: /home/grundler/bin/
Looking for 'real-ld'
Looking for 'collect-ld'
Looking for 'ld'
Looking for 'ld'
Looking for 'gnm'
Looking for 'gnm'
Looking for 'nm'
Looking for 'nm'
Looking for 'gstrip'
Looking for 'gstrip'
Looking for 'strip'
Looking for 'strip'
Looking for 'gcc'
Looking for 'gcc'
collect2 version 3.3.1 (Debian) (hppa)
ld_file_name        = /usr/bin/ld
c_file_name         = /usr/bin/gcc
nm_file_name        = /usr/bin/nm
strip_file_name     = /usr/bin/strip
c_file              = /tmp/ccAA0Eun.c
o_file              = /tmp/cc0QBMNA.o
COLLECT_GCC_OPTIONS = '-o' 'glxinfo' '-g' '-O' '-ansi' '-pedantic' '-Wall' '-Wpointer-arith' '-Wstrict-prototypes' '-Wmissing-prototypes' '-Wmissing-declarations' '-Wredundant-decls' '-Wnested-externs' '-Wundef' '-L../../exports/lib'
COLLECT_GCC         = gcc
COMPILER_PATH       = /usr/lib/gcc-lib/hppa-linux/3.3.1/:/usr/lib/gcc-lib/hppa-linux/3.3.1/:/usr/lib/gcc-lib/hppa-linux/:/usr/lib/gcc/hppa-linux/3.3.1/:/usr/lib/gcc/hppa-linux/:/usr/lib/gcc-lib/hppa-linux/3.3.1/../../../../hppa-linux/bin/hppa-linux/3.3.1/:/usr/lib/gcc-lib/hppa-linux/3.3.1/../../../../hppa-linux/bin/
LIBRARY_PATH        = /usr/lib/gcc-lib/hppa-linux/3.3.1/:/usr/lib/gcc/hppa-linux/3.3.1/:/usr/lib/gcc-lib/hppa-linux/3.3.1/../../../../hppa-linux/lib/hppa-linux/3.3.1/:/usr/lib/gcc-lib/hppa-linux/3.3.1/../../../../hppa-linux/lib/:/usr/lib/gcc-lib/hppa-linux/3.3.1/../../../hppa-linux/3.3.1/:/usr/lib/gcc-lib/hppa-linux/3.3.1/../../../:/lib/hppa-linux/3.3.1/:/lib/:/usr/lib/hppa-linux/3.3.1/:/usr/lib/

/usr/bin/ld --eh-frame-hdr -dynamic-linker /lib/ld.so.1 -o glxinfo /usr/lib/gcc-lib/hppa-linux/3.3.1/../../../crt1.o /usr/lib/gcc-lib/hppa-linux/3.3.1/../../../crti.o /usr/lib/gcc-lib/hppa-linux/3.3.1/crtbegin.o -L../../exports/lib -L/usr/lib/gcc-lib/hppa-linux/3.3.1 -L/usr/lib/gcc-lib/hppa-linux/3.3.1/../../.. glxinfo.o -lGLU -lGL -lXext -lX11 -lpthread -lm -lgcc_eh -rpath-link ../../exports/lib -lgcc -lgcc_eh -lc -lgcc -lgcc_eh /usr/lib/gcc-lib/hppa-linux/3.3.1/crtend.o /usr/lib/gcc-lib/hppa-linux/3.3.1/../../../crtn.o
../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Resume@GCC_3.0'
../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Register@GCC_3.0'
/usr/bin/../lib/libstdc++.so.5: undefined reference to `_Unwind_SjLj_RaiseException@GCC_3.0'
../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Unregister@GCC_3.0'
/usr/bin/../lib/libstdc++.so.5: undefined reference to `_Unwind_SjLj_Resume_or_Rethrow@GCC_3.3'
collect2: ld returned 1 exit status
[Leaving /tmp/ccAA0Eun.c]
[Leaving /tmp/cc0QBMNA.o]
[Leaving /tmp/ccGtmF6N.ld]
[Leaving glxinfo]
grundler@gsyprf11:/usr/src/xfree86-4.2.1/build-tree/xc/programs/glxinfo$ 


--mP3DRpeJDSE+ciuQ--


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On Mon, Aug 11, 2003 at 01:30:40PM -0400, John David Anglin wrote:
> Using the g++ driver or adding `-shared-libgcc' to the link command
> should work around the problem.

I already knew g++ did.
I just confirmed adding `-shared-libgcc' did too.

thanks,
grant


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> What's interesting is the "ld" command has "-lgcc-eh" which is where
> the missing symbols are defined:
> grundler <512>nm libgcc_eh.a | grep _Unwind_SjLj_Resume
> 0000079c T _Unwind_SjLj_Resume
> 000008d0 T _Unwind_SjLj_Resume_or_Rethrow
> grundler <513>pwd
> /usr/lib/gcc-lib/hppa-linux/3.3.1

Yes, but libgcc_eh.a doesn't contain the versioned symbols that the shared
libraries need.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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jda,

> LIBRARY_PATH        = /usr/lib/gcc-lib/hppa-linux/3.3.1/:/usr/lib/gcc/hppa-linux/3.3.1/:/usr/lib/gcc-lib/hppa-linux/3.3.1/../../../../hppa-linux/lib/hppa-linux/3.3.1/:/usr/lib/gcc-lib/hppa-linux/3.3.1/../../../../hppa-linux/lib/:/usr/lib/gcc-lib/hppa-linux/3.3.1/../../../hppa-linux/3.3.1/:/usr/lib/gcc-lib/hppa-linux/3.3.1/../../../:/lib/hppa-linux/3.3.1/:/lib/:/usr/lib/hppa-linux/3.3.1/:/usr/lib/
> 
> /usr/bin/ld --eh-frame-hdr -dynamic-linker /lib/ld.so.1 -o glxinfo /usr/lib/gcc-lib/hppa-linux/3.3.1/../../../crt1.o /usr/lib/gcc-lib/hppa-linux/3.3.1/../../../crti.o /usr/lib/gcc-lib/hppa-linux/3.3.1/crtbegin.o -L../../exports/lib -L/usr/lib/gcc-lib/hppa-linux/3.3.1 -L/usr/lib/gcc-lib/hppa-linux/3.3.1/../../.. 

I'm pretty sure according to our discussion on the proper placement of
libgcc_eh that there is a missing "-lgcc_eh" right here (or rather the
next one should be _after_ the crtbegin?). See the wrapping -lgcc_eh 
around -lc and -lgcc

glxinfo.o -lGLU -lGL -lXext -lX11 -lpthread -lm -lgcc_eh -rpath-link ../../exports/lib -lgcc -lgcc_eh -lc -lgcc -lgcc_eh /usr/lib/gcc-lib/hppa-linux/3.3.1/crtend.o /usr/lib/gcc-lib/hppa-linux/3.3.1/../../../crtn.o
> ../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Resume@GCC_3.0'
> ../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Register@GCC_3.0'
> /usr/bin/../lib/libstdc++.so.5: undefined reference to `_Unwind_SjLj_RaiseException@GCC_3.0'
> ../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Unregister@GCC_3.0'
> /usr/bin/../lib/libstdc++.so.5: undefined reference to `_Unwind_SjLj_Resume_or_Rethrow@GCC_3.3'
> collect2: ld returned 1 exit status
> [Leaving /tmp/ccAA0Eun.c]
> [Leaving /tmp/cc0QBMNA.o]
> [Leaving /tmp/ccGtmF6N.ld]
> [Leaving glxinfo]
> grundler@gsyprf11:/usr/src/xfree86-4.2.1/build-tree/xc/programs/glxinfo$ 

This is an issue we've seen in the detection of unwind info from
autoconf. Glibc has a patch to hack around a proper detection by placing
the appropirate -lgcc_eh in the front.

c.



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On Mon, Aug 11, 2003 at 03:25:47PM -0400, John David Anglin wrote:
> > What's interesting is the "ld" command has "-lgcc-eh" which is where
> > the missing symbols are defined:
> > grundler <512>nm libgcc_eh.a | grep _Unwind_SjLj_Resume
> > 0000079c T _Unwind_SjLj_Resume
> > 000008d0 T _Unwind_SjLj_Resume_or_Rethrow
> > grundler <513>pwd
> > /usr/lib/gcc-lib/hppa-linux/3.3.1
> 
> Yes, but libgcc_eh.a doesn't contain the versioned symbols that the shared
> libraries need.

Are we not using libgcc_eh to resolve such symbols in libgcc and libc?

c.


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> The basic problem is glxinfo (C program) links against libGLU.so
> (C++ built library). But glxinfo fails to link using gcc:
> ...
> gcc -o glxinfo -g -O -ansi -pedantic -Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wundef     -L../../exports/lib glxinfo.o -lGLU -lGL -lXext -lX11  -lpthread -lm -Wl,-rpath-link,../../exports/lib
> ../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Resume@GCC_3.0'
> ../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Register@GCC_3.0'
> /usr/bin/../lib/libstdc++.so.5: undefined reference to `_Unwind_SjLj_RaiseException@GCC_3.0'
> ../../exports/lib/libGLU.so: undefined reference to `_Unwind_SjLj_Unregister@GCC_3.0'
> /usr/bin/../lib/libstdc++.so.5: undefined reference to `_Unwind_SjLj_Resume_or_Rethrow@GCC_3.3'
> collect2: ld returned 1 exit status
> ...

Ok, here is what is happening.

First, I gave you the wrong advice on the option to get verbose info from ld.
I gave you the hpux option.  The GNU option is `--verbose' or `-Wl,--verbose'
when using the gcc driver.

Here is the linker path on gsyprf11:

SEARCH_DIR("/usr/hppa-linux/lib"); SEARCH_DIR("/usr/lib"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib");

Here is where ld found libgcc_s.so.1:
found libgcc_s.so.1 at /usr/local/lib/libgcc_s.so.1

The version of libgcc_s.so.1 in /usr/local/lib is old and appears to have
been built using dwarf2 exception support.

Probably, the version of GCC installed in /usr/local should be removed.
I believe it was the initial port with support for Ada.  However, this
is now part of the regular debian distro.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> On Mon, Aug 11, 2003 at 03:25:47PM -0400, John David Anglin wrote:
> > > What's interesting is the "ld" command has "-lgcc-eh" which is where
> > > the missing symbols are defined:
> > > grundler <512>nm libgcc_eh.a | grep _Unwind_SjLj_Resume
> > > 0000079c T _Unwind_SjLj_Resume
> > > 000008d0 T _Unwind_SjLj_Resume_or_Rethrow
> > > grundler <513>pwd
> > > /usr/lib/gcc-lib/hppa-linux/3.3.1
> > 
> > Yes, but libgcc_eh.a doesn't contain the versioned symbols that the shared
> > libraries need.
> 
> Are we not using libgcc_eh to resolve such symbols in libgcc and libc?

Not for versioned symbols.  For that, you need to link with libgcc_s.so
(i.e., the shared version of libgcc).  The g++ driver does this automatically.
You can also add `-shared-libcc' to your link command when using the gcc
driver.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> Ok, here is what is happening.
> 
> First, I gave you the wrong advice on the option to get verbose info from ld.
> I gave you the hpux option.  The GNU option is `--verbose' or `-Wl,--verbose'
> when using the gcc driver.
> 
> Here is the linker path on gsyprf11:
> 
> SEARCH_DIR("/usr/hppa-linux/lib"); SEARCH_DIR("/usr/lib"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib");

One further note: The default search path used by ldd doesn't agree
with the default path used by ld.  So, I think binutils and glibc
need to get together on this.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Mon, Aug 11, 2003 at 04:38:06PM -0400, John David Anglin wrote:
> First, I gave you the wrong advice on the option to get verbose info from ld.
> I gave you the hpux option.  The GNU option is `--verbose' or `-Wl,--verbose'
> when using the gcc driver.

ok. -debug was good.

> Here is the linker path on gsyprf11:
> 
> SEARCH_DIR("/usr/hppa-linux/lib"); SEARCH_DIR("/usr/lib"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib");
> 
> Here is where ld found libgcc_s.so.1:
> found libgcc_s.so.1 at /usr/local/lib/libgcc_s.so.1

ugh. `dpkg -S /usr/local/lib' comes up empty.
I've deleted everything older than a few days (python/texmf remain).
My expectation is hppa64-linux-* tool chain is self contained in
/opt/palinux and can go away when someone points me at a hppa64 .deb.

> The version of libgcc_s.so.1 in /usr/local/lib is old and appears to have
> been built using dwarf2 exception support.
> 
> Probably, the version of GCC installed in /usr/local should be removed.
> I believe it was the initial port with support for Ada.  However, this
> is now part of the regular debian distro.

deleted. Apologies for the goose chase.

But this is probably an excellent example for versioned symbols.
glxinfo would have broken in other weird ways at run time and
would have been even harder to track down.

Now I can go back and rebuild xfree86 again...

thanks,
grant


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> > when using the gcc driver.
> 
> ok. -debug was good.

This shows what collect2 is doing.  It is useful to see the exact way
in which gcc is running ld.  -Wl,--verbose shows what ld is doing.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> Here is the linker path on gsyprf11:
> 
> SEARCH_DIR("/usr/hppa-linux/lib"); SEARCH_DIR("/usr/lib"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib");

This search path seems somewhat strange.  It appears debian used the
`--with-lib-path=dir1:dir2...  set default LIB_PATH' configure option
in building binutils.  I believe that the default binutils order would
be "/usr/local/lib", "/lib" and then "/usr/lib".

On the otherhand, ld.so has the default order "/usr/lib", then "/lib".
Don't know why the search order for the system directories in glibc
is opposite to binutils.

On gsyprf11, /etc/ld.so.conf contains:
/usr/X11R6/lib
/usr/lib/postfix

So, the dynamic loader will use the following path as the default search:
/usr/X11R6/lib:/usr/lib/postfix:/usr/lib:/lib

The dynamic loader doesn't search /usr/local/lib and it has a different
search order than ld.  Because /usr/local/lib is normally searched before
the system library directories, you have to be careful what you put there.

It would be nice if the linker and dynamic linker were consistent :)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Would anyone mind if i committed this to cvs? (2.6 only) It
removes/hides all the warnings from the math-emu directory, since we
don't plan to fix them... 

Index: arch/parisc/math-emu/Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/math-emu/Makefile,v
retrieving revision 1.1
diff -u -p -r1.1 Makefile
--- arch/parisc/math-emu/Makefile	29 Jul 2003 17:00:42 -0000	1.1
+++ arch/parisc/math-emu/Makefile	12 Aug 2003 03:38:58 -0000
@@ -2,6 +2,11 @@
 # Makefile for the linux/parisc floating point code
 #
 
+# See arch/parisc/math-emu/README
+CFLAGS += -Wno-parentheses -Wno-implicit-function-declaration \
+	-Wno-uninitialized -Wno-strict-prototypes -Wno-return-type \
+	-Wno-implicit-int
+
 obj-y	 := frnd.o driver.o decode_exc.o fpudispatch.o denormal.o \
 		dfmpy.o sfmpy.o sfsqrt.o dfsqrt.o dfadd.o fmpyfadd.o \
 		sfadd.o dfsub.o sfsub.o fcnvfxt.o fcnvff.o fcnvxf.o \
Index: arch/parisc/math-emu/types.h
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/math-emu/types.h,v
retrieving revision 1.1
diff -u -p -r1.1 types.h
--- arch/parisc/math-emu/types.h	29 Jul 2003 17:00:42 -0000	1.1
+++ arch/parisc/math-emu/types.h	12 Aug 2003 03:38:58 -0000
@@ -20,6 +20,7 @@
  */
 
 #include <linux/kernel.h>
+#undef BUG
 #define BUG() do { \
         printk(KERN_ERR "floating-pt emulation BUG at %s:%d!\n", __FILE__, __LINE__); \
 } while (0)

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] itlb miss handler optimizations!
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To: Matthew Wilcox <willy@debian.org>
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On Fri, Jul 25, 2003 at 12:46:15PM +0100, Matthew Wilcox wrote:
> can't do that.  we have three sets of routines -- itlb_miss_common_11,
> itlb_miss_common_20 and itlb_miss_common_20w.  we select between _20w
> or not at compile time (if it's 64-bit, it's PA 2.0 Wide), but select
> between _20 and _11 at boot time (fault_vector_20 vs fault_vector_11).
> 
> shame on you, you didn't even try assembling it ;-)

Assembles, and boots on my C3K, 32-bit kernel. Looking for any takers
who want to try it in 64-bit mode. I'm running lmbench to see if I can
tell the difference between this and the original code. 

I would be most appreciative if anyone would pipe up and say "Run X to
test if Y works better/faster/harder" :}

c.

--- arch/parisc/kernel/entry.S	9 Dec 2002 06:09:08 -0000	1.98
+++ arch/parisc/kernel/entry.S	12 Aug 2003 03:49:04 -0000
@@ -1469,8 +1469,7 @@ itlb_miss_20w:
 	mfctl           %cr25,ptp	/* load user pgd */
 
 	mfsp            %sr7,t0		/* Get current space */
-	or,*=           %r0,t0,%r0      /* If kernel, nullify following test */
-	cmpb,*<>,n      t0,spc,itlb_fault /* forward */
+	cmpb,<>,n	t0,spc,itlb_user_fault_20w /* forward */
 
 	/* First level page table lookup */
 
@@ -1535,8 +1534,7 @@ itlb_miss_11:
 	mfctl           %cr25,ptp	/* load user pgd */
 
 	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,itlb_fault /* forward */
+	cmpb,<>,n	t0,spc,itlb_user_fault_11 /* forward */
 
 	/* First level page table lookup */
 
@@ -1551,6 +1549,10 @@ itlb_miss_common_11:
 	sh2addl 	 t0,ptp,ptp
 	ldi		_PAGE_ACCESSED,t1
 	ldw		 0(ptp),pte
+
+	/* Running parallel, taken from below 'zdep0' */
+	zdep            spc,30,15,prot  /* create prot id from space */
+
 	bb,>=,n 	 pte,_PAGE_PRESENT_BIT,itlb_fault
 
 	/* Check whether the "accessed" bit was set, otherwise do so */
@@ -1559,7 +1561,7 @@ itlb_miss_common_11:
 	and,<>		t1,pte,%r0	/* test and nullify if already set */
 	stw		t0,0(ptp)	/* write back pte */
 
-	zdep            spc,30,15,prot  /* create prot id from space */
+	/* zdep0 moved back */
 	dep             pte,8,7,prot    /* add in prot bits from pte */
 
 	extru,=		pte,_PAGE_NO_CACHE_BIT,1,r0
@@ -1602,8 +1604,7 @@ itlb_miss_20:
 	mfctl           %cr25,ptp	/* load user pgd */
 
 	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,itlb_fault /* forward */
+	cmpb,<>,n	t0,spc,itlb_user_fault_20	/* forward */
 
 	/* First level page table lookup */
 
@@ -1882,6 +1883,37 @@ kernel_bad_space:
 dbit_fault:
 	b               intr_save
 	ldi             20,%r8
+
+/* The following three labels relate to an optimization in the itlb handler.
+   itlb_user_fault_20w:
+   itlb_user_fault_20:
+   itlb_user_fault_11:
+   We keep the CPU jumping fwd/bkwd in the common case, and the uncommon case
+   has the cmpb fail (no jump) and thus branch prediction failing. */
+
+#ifdef __LP64__
+itlb_user_fault_20w:
+	/* User tlb missed for other than his own space. Optimization. */
+	cmpb,=		%r0,t0,itlb_miss_common_20w /* backward */
+	nop
+#else
+itlb_user_fault_20:
+	/* User tlb missed for other than his own space. Optimization. */
+	cmpb,=		%r0,t0,itlb_miss_common_20 /* backward */
+	nop
+
+/* FALL THROUGH - We don't care if we run the test twice. If someone
+                  asks to have the "user is faulting death" path optimal
+                  then they should seek help. */
+
+itlb_user_fault_11:
+	/* User tlb missed for other than his own space. Optimization. */
+	cmpb,=		%r0,t0,itlb_miss_common_11 /* backward */
+	nop
+#endif
+
+/* FALL THROUGH - We have a real itlb_fault from one of the above three
+                  label sequences */
 
 itlb_fault:
 	b               intr_save


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [PATCH] dlfcn/default fixes for hppa
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Xref: news.gmane.org gmane.linux.ports.parisc:19182

libc-alpha,

The hppa backend in gcc uses type information to determine if the variable 
we manipulate is a function descriptor, and thus, on comparisons, make 
calls behind the scenes to canonicalize that descriptor. When variables are
cast to 'void *' all the type information is lost. I've included a
patch to the dlfcn/default test that changes some of the casts in the test
such as to retain the type information. 

What I've done is to cast 'p' to a function pointer of type 
"(int (*)(int, char **))" rather than casting 'main' to an opaque
pointer of type "(void *)". Second to that I've modified test_in_mod[12]
to take a variable of type "(int (*)(int, char **))" (the address of the
calling main) rather than "(void *)", and carry out the appropriate casting.

This is the only method to do the required casts, and I am open to
comments.

Passes tests without regression on i386, and removes the dlfcn/default
failure from hppa.

Cheers,
Carlos.
---

 libc/dlfcn/default.c     |    6 +++---
 libc/dlfcn/defaultmod1.c |    6 +++---
 libc/dlfcn/defaultmod2.c |    6 +++---
 3 files changed, 9 insertions(+), 9 deletions(-)

---

2003-08-11  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* dlfcn/default.c (main): 
	Cast dlsym loaded value to same type as main.
	Address passed to test_in_mod1 and test_in_mod2 without casting.
	* dlfcn/defaultmod1.c: Change prototype of test_in_mod1.
	(test_in_mod1): Cast dlsym loaded value to same type as mainp.
	* dlfcn/defaultmod2.c: Change prototype of test_in_mod2.
	(test_in_mod2): Cast dlsym loaded value to same type as mainp.

diff -u -p -r1.2 default.c
--- libc/dlfcn/default.c	16 Nov 2000 02:12:46 -0000	1.2
+++ libc/dlfcn/default.c	29 Jul 2003 16:11:34 -0000
@@ -36,7 +36,7 @@ main (int argc, char *argv[])
       printf ("%s: main not found\n", __FILE__);
       result = 1;
     }
-  else if (p != (void *) &main)
+  else if ((int (*)(int, char **))p != main)
     {
       printf ("%s: wrong address returned for main\n", __FILE__);
       result = 1;
@@ -72,9 +72,9 @@ main (int argc, char *argv[])
   else
     printf ("%s: found_in_mod2 correctly found\n", __FILE__);
 
-  result |= test_in_mod1 ((void *) &main);
+  result |= test_in_mod1 (main);
 
-  result |= test_in_mod2 ((void *) &main);
+  result |= test_in_mod2 (main);
 
   return result;
 }
diff -u -p -r1.2 defaultmod1.c
--- libc/dlfcn/defaultmod1.c	29 Nov 2000 00:03:27 -0000	1.2
+++ libc/dlfcn/defaultmod1.c	29 Jul 2003 16:11:34 -0000
@@ -9,9 +9,9 @@ found_in_mod1 (void)
 }
 
 
-extern int test_in_mod1 (void *mainp);
+extern int test_in_mod1 (int (*mainp)(int, char **));
 int
-test_in_mod1 (void *mainp)
+test_in_mod1 (int (*mainp)(int, char **))
 {
   int (*ifp) (void);
   void *p;
@@ -24,7 +24,7 @@ test_in_mod1 (void *mainp)
       printf ("%s: main not found\n", __FILE__);
       result = 1;
     }
-  else if (p != mainp)
+  else if ((int (*)(int, char **))p != mainp)
     {
       printf ("%s: wrong address returned for main\n", __FILE__);
       result = 1;
diff -u -p -r1.2 defaultmod2.c
--- libc/dlfcn/defaultmod2.c	29 Nov 2000 00:03:27 -0000	1.2
+++ libc/dlfcn/defaultmod2.c	29 Jul 2003 16:11:34 -0000
@@ -16,9 +16,9 @@ found_in_mod2 (void)
 }
 
 
-extern int test_in_mod2 (void *mainp);
+extern int test_in_mod2 (int (*mainp)(int, char **));
 int
-test_in_mod2 (void *mainp)
+test_in_mod2 (int (*mainp)(int, char **))
 {
   int (*ifp) (void);
   void *p;
@@ -31,7 +31,7 @@ test_in_mod2 (void *mainp)
       printf ("%s: main not found\n", __FILE__);
       result = 1;
     }
-  else if (p != mainp)
+  else if ((int (*)(int, char **))p != mainp)
     {
       printf ("%s: wrong address returned for main\n", __FILE__);
       result = 1;


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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] how to handle ERESTART_RESTARTBLOCK ?
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I commited some broken code into 2.6 cvs just now, so now i need some
help to fix it ;-) sorry for the verbose explanation below, but i need
to write this down to make sure i understand it myself :-)

Our signal handling code was not handling ERESTART_RESTARTBLOCK
correctly. as far as I can tell, the semantics of this is that if a
syscall function returns with that error code, we are supposed to
restart the syscall, but with a new syscall number
(__NR_restart_syscall -- which we don't define at the moment)

The problem is that our syscall mechanism doesn't really allow this
(afaict). Our syscall sequence looks like this:

    ble <address of gateway page>
    ldi <syscall number>, %r20
    [ we enter the kernel at this point ]

and the way we handle restarting other syscalls is to set the iaoq back
by two insns, so we do the ble again. there's a comment about this in
the code (signal.c)

                        /* Hooray for delayed branching.  We don't
                           have to restore %r20 (the system call
                           number) because it gets loaded in the delay
                           slot of the branch external instruction. */
                        regs->gr[31] -= 8;

which is all well and good, except i don't see how we can change the
syscall number to restart it for the ERESTART_RESTARTBLOCK case.

why is it bad to just call sys_restart_syscall directly from
do_signal()?

any suggestions on how to handle this properly?

thanks
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] itlb miss handler optimizations!
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Hi Carlos,

>Assembles, and boots on my C3K, 32-bit kernel. Looking for any takers
>who want to try  it in 64-bit mode. I'm running lmbench to see if I can
>tell the difference between this and the original code. 
>
>I would be most appreciative if anyone would pipe up and say "Run X to
>test if Y works better/faster/harder" :}

I apply your patch against 2.4.21-pa9 on the N-4000 and compile it successfully
with hppa64-linux-gcc (3.2.3). (having no clue about lmbench) I take this
exercise to roughly compare. 

Running the original 2.4.21-pa9 here are times:
Tue Aug 12 09:59:55 CEST 2003
[...] # Build kernel: 19'58"
Tue Aug 12 10:19:53 CEST 2003
[...] # Build modules: 7'46"
Tue Aug 12 10:27:39 CEST 2003

Running this new kernel:

Tue Aug 12 12:28:37 CEST 2003
[...] # Build kernel: 20'8"
Tue Aug 12 12:48:45 CEST 2003
[...] # Build modules: 7'47"
Tue Aug 12 12:56:32 CEST 2003

The difference are so small that a more accurate tools would be requested.

hth anyway,
    Joel


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> I apply your patch against 2.4.21-pa9 on the N-4000 and compile it successfully
> with hppa64-linux-gcc (3.2.3). (having no clue about lmbench) I take this
> exercise to roughly compare. 
> 
> Running the original 2.4.21-pa9 here are times:
> Tue Aug 12 09:59:55 CEST 2003
> [...] # Build kernel: 19'58"
> Tue Aug 12 10:19:53 CEST 2003
> [...] # Build modules: 7'46"
> Tue Aug 12 10:27:39 CEST 2003
> 
> Running this new kernel:
> 
> Tue Aug 12 12:28:37 CEST 2003
> [...] # Build kernel: 20'8"
> Tue Aug 12 12:48:45 CEST 2003
> [...] # Build modules: 7'47"
> Tue Aug 12 12:56:32 CEST 2003
> 
> The difference are so small that a more accurate tools would be requested.

Thanks Joel! Yeah, I figured that perhaps the change might get lost in
the noise... I'm still running lmbench multiple times to get good
numbers.

Thanks again!

c.



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On Mon, Aug 11, 2003 at 08:42:44PM -0700, Randolph Chung wrote:
> Would anyone mind if i committed this to cvs? (2.6 only) It
> removes/hides all the warnings from the math-emu directory, since we
> don't plan to fix them... 

I'm pretty sure Paul Bame said it was ok to fix them at this point.
He didn't expect any major changes to our FP EMU support or
the HPUX FP emulation it was derived from.

grant


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>I'm pretty sure Paul Bame said it was ok to fix them at this point.
>He didn't expect any major changes to our FP EMU support or
>the HPUX FP emulation it was derived from.

Ha a long time ago I suggest a draft patch (iirc forget because too difficult
to manage versus HPUX). If someone else is interested in I can try to find
it back?

Joel


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>I'm pretty sure Paul Bame said it was ok to fix them at this point.
>He didn't expect any major changes to our FP EMU support or
>the HPUX FP emulation it was derived from.

Ha a long time ago I suggest a draft patch (iirc forget because too difficult
to manage versus HPUX). If someone else is interested in I can try to find
it back?

Joel


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On Mon, Aug 11, 2003 at 11:58:11PM -0400, Carlos O'Donell wrote:
> I would be most appreciative if anyone would pipe up and say "Run X to
> test if Y works better/faster/harder" :}

osdl-aim-7 benchmark probably stresses both itlb and dtlb.
(available from osdl.org - URL is in linux-ia64 archive)

SDET is another candidate.

Note that itlb misses is a function of accesses to lots of "random"
pages in memory and having enough memory so the odds of hitting
the same page often is low. ie run thousands of jobs and the
scheduler thrash the itlb.

at least that's how I understand it.

grant


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On Tue, Aug 12, 2003 at 10:06:12AM -0600, Grant Grundler wrote:
> Note that itlb misses is a function of accesses to lots of "random"
> pages in memory and having enough memory so the odds of hitting
> the same page often is low. ie run thousands of jobs and the
> scheduler thrash the itlb.
> 
> at least that's how I understand it.

since we're still using 4k page size, and we have typically 160 TLB entries,
that only covers 640k of our 1.5MB cache ... 

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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>
>osdl-aim-7 benchmark probably stresses both itlb and dtlb.
>(available from osdl.org - URL is in linux-ia64 archive)

Ok I finaly find it as re-aim-7 sf.net project. Just launch (alltest) with
kernel-64bits+ C.patch . I will let run for the night and relaunch it with
 tommorrow morning with original kernel-64bits.

Thanks,
    Joel


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> OK.  Some files were missing from the initial import, so I added them.
> 
> However, I can't get a linus branch out of it:

Yeah I forgot to lay that down.  FYI it's not a branch now -- just a
normal tag which is moved to the latest import.

> I suspect this will hinder using cvs-import to add 2.6.0-test3.

Imported and merged.

	-P


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 8.Ա-Ϊⲿ̳ҲΪ˾ڲԱͨƽ̨
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11.Ϻؿ-Ҫգͻ;ؿǿͻĸ顣
12.ҵʾ-վͬҵʾ֣ҵĶ
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˾һҴóҵ"Ӧо""繤̽""ýӰӶ
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Xref: news.gmane.org gmane.linux.ports.parisc:19195

>
>osdl-aim-7 benchmark probably stresses both itlb and dtlb.
>(available from osdl.org - URL is in linux-ia64 archive)

Well I finaly find it on sf.net (via osdl.org)

And submit some bench which seems to be more in relation with vm (?):

./reaim -x -t -f worfile.shared -r3

# with new itlb stuff I got following results

REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
1       32.72    6.17    4.42    177.87     177.87     0.00     0.00    
100  
2       33.16    10.19   9.13    351.03     175.51     0.30     0.90    
99   
3       37.01    14.71   13.94   471.76     157.25     0.04     0.12    
99   
4       43.87    19.44   18.61   530.66     132.66     1.46     3.43    
96   
5       49.55    24.26   23.08   587.29     117.46     1.79     3.76    
96   
6       57.60    28.08   27.99   606.25     101.04     1.33     2.36    
97   
7       67.86    33.32   32.46   600.35     85.76      1.82     2.73    
97   
8       77.51    37.77   37.58   600.70     75.09      1.01     1.32    
98   
9       86.11    41.69   42.05   608.29     67.59      1.21     1.42    
98   
10      96.33    47.01   46.67   604.17     60.42      1.59     1.67    
98   
Max sustained jobs reached
Max Jobs per Minute 608.29
REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
1       32.58    6.11    4.32    178.64     178.64     0.00     0.00    
100  
2       31.60    10.16   9.02    368.35     184.18     0.55     1.79    
98   
3       35.51    14.90   13.48   491.69     163.90     1.40     4.09    
95   
4       40.54    19.56   18.50   574.25     143.56     1.51     3.90    
96   
5       49.35    24.16   23.72   589.67     117.93     1.07     2.20    
97   
6       58.16    28.60   27.88   600.41     100.07     1.64     2.91    
97   
7       67.67    33.38   32.62   602.04     86.01      0.48     0.71    
99   
8       78.01    37.71   37.75   596.85     74.61      1.06     1.38    
98   
9       87.46    43.28   41.86   598.90     66.54      1.30     1.51    
98   
Max sustained jobs reached
Max Jobs per Minute 602.04
REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
1       32.27    5.60    4.56    180.35     180.35     0.00     0.00    
100  
2       33.02    10.50   9.03    352.51     176.26     0.55     1.68    
98   
3       33.39    15.14   13.68   522.91     174.30     0.54     1.66    
98   
4       39.93    19.55   18.46   583.02     145.76     0.66     1.69    
98   
5       50.01    24.32   23.12   581.88     116.38     1.67     3.46    
96   
6       58.70    28.73   28.27   594.89     99.15      0.42     0.72    
99   
7       66.99    32.31   32.78   608.15     86.88      1.50     2.28    
97   
8       76.04    37.00   37.12   612.31     76.54      0.74     0.99    
99   
9       86.42    42.29   41.68   606.11     67.35      0.93     1.09    
98   
10      96.15    45.99   46.82   605.30     60.53      1.43     1.51    
98   
Max sustained jobs reached
Max Jobs per Minute 612.31

# with the original itlb

REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
1       32.37    5.79    4.42    179.80     179.80     0.00     0.00    
100  
2       33.28    10.07   9.33    349.76     174.88     0.06     0.20    
99   
3       36.37    15.30   13.73   480.07     160.02     0.21     0.58    
99   
4       41.49    19.60   18.37   561.10     140.27     2.15     5.38    
94   
5       49.21    24.03   23.40   591.34     118.27     1.26     2.62    
97   
6       59.48    29.56   27.85   587.09     97.85      2.44     4.26    
95   
7       68.38    32.96   32.47   595.79     85.11      0.96     1.43    
98   
8       76.53    36.48   37.74   608.39     76.05      2.08     2.80    
97   
9       86.39    41.80   41.91   606.32     67.37      0.86     1.01    
98   
10      95.58    45.96   46.90   608.91     60.89      1.24     1.31    
98   
11      104.80   50.56   51.60   610.88     55.53      1.21     1.17    
98   
Max sustained jobs reached
Max Jobs per Minute 610.88
REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
1       32.05    5.66    4.47    181.59     181.59     0.00     0.00    
100  
2       33.90    10.52   9.13    343.36     171.68     0.45     1.35    
98   
3       38.53    14.55   13.84   453.15     151.05     0.44     1.16    
98   
4       40.38    18.64   18.49   576.52     144.13     0.54     1.35    
98   
5       48.82    23.39   23.26   596.07     119.21     1.71     3.62    
96   
6       58.57    28.88   28.01   596.21     99.37      0.63     1.08    
98   
7       67.80    32.98   32.77   600.88     85.84      2.61     3.98    
96   
8       76.49    36.85   37.50   608.71     76.09      1.14     1.51    
98   
9       87.04    42.31   42.12   601.79     66.87      2.82     3.31    
96   
Max sustained jobs reached
Max Jobs per Minute 608.71
REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
1       32.54    5.63    4.59    178.86     178.86     0.00     0.00    
100  
2       33.68    10.74   9.00    345.61     172.80     0.32     0.97    
99   
3       35.66    14.41   13.98   489.62     163.21     1.46     4.26    
95   
4       42.70    19.24   18.43   545.20     136.30     2.18     5.35    
94   
5       49.30    23.86   23.33   590.26     118.05     1.31     2.78    
97   
6       57.14    27.50   28.11   611.13     101.86     1.56     2.81    
97   
7       66.99    31.90   33.07   608.15     86.88      0.70     1.06    
98   
8       77.60    37.64   37.46   600.00     75.00      0.99     1.31    
98   
9       85.76    41.25   42.08   610.77     67.86      1.50     1.78    
98   
10      97.18    47.80   46.20   598.89     59.89      1.48     1.56    
98   
 Job rate dropping avg: 605.79 loss pct: 1.14
Max Jobs per Minute 611.13

AND

./reaim -q -t -f worfile.shared -r3

# with new itlb stuff I got following results

REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
1       32.83    6.03    4.51    177.28     177.28     0.00     0.00    
100  
2       33.20    10.88   8.84    350.60     175.30     0.67     2.06    
97   
3       35.94    15.23   13.87   485.81     161.94     1.20     3.47    
96   
4       43.43    19.65   18.23   536.03     134.01     1.01     2.37    
97   
5       49.43    24.33   23.21   588.71     117.74     0.62     1.27    
98   
6       58.17    28.72   27.79   600.31     100.05     1.12     1.96    
98   
7       66.74    32.72   32.14   610.43     87.20      1.95     2.98    
97   
8       77.11    37.67   37.27   603.81     75.48      1.41     1.86    
98   
9       86.75    42.45   41.75   603.80     67.09      0.95     1.11    
98   
10      95.95    46.78   46.57   606.57     60.66      1.09     1.16    
98   
11      105.20   50.86   51.51   608.56     55.32      1.72     1.66    
98   
Crossover achieved
Max Jobs per Minute 610.43
REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
1       32.73    6.28    4.47    177.82     177.82     0.00     0.00    
100  
2       33.55    10.97   8.96    346.94     173.47     0.24     0.74    
99   
3       34.55    15.24   13.70   505.35     168.45     1.20     3.58    
96   
4       40.15    19.14   18.33   579.83     144.96     0.88     2.22    
97   
5       49.94    24.48   23.26   582.70     116.54     1.00     2.05    
97   
6       60.80    28.86   27.50   574.34     95.72      0.81     1.35    
98   
7       67.28    33.01   32.08   605.53     86.50      1.47     2.24    
97   
8       77.15    37.59   37.02   603.50     75.44      1.37     1.80    
98   
9       85.40    40.94   42.18   613.35     68.15      1.75     2.09    
97   
10      95.15    45.89   46.72   611.67     61.17      1.11     1.19    
98   
11      104.86   50.49   51.54   610.53     55.50      1.49     1.44    
98   
Crossover achieved
Max Jobs per Minute 613.35
REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
1       33.13    6.50    4.44    175.67     175.67     0.00     0.00    
100  
2       32.23    10.82   8.89    361.15     180.58     0.23     0.72    
99   
3       35.72    15.39   13.76   488.80     162.93     2.12     6.37    
93   
4       42.04    20.43   18.52   553.76     138.44     3.55     8.94    
91   
5       49.50    24.03   23.06   587.88     117.58     2.50     5.26    
94   
6       57.70    27.79   28.01   605.20     100.87     1.45     2.60    
97   
7       67.37    32.72   32.59   604.72     86.39      0.68     1.03    
98   
8       76.52    36.82   37.57   608.47     76.06      0.90     1.19    
98   
9       86.14    42.06   41.87   608.08     67.56      0.87     1.03    
98   
10      96.24    47.16   46.63   604.74     60.47      1.62     1.72    
98   
11      105.27   51.04   51.32   608.15     55.29      1.29     1.23    
98   
Crossover achieved
Max Jobs per Minute 608.47

# with the original itlb


REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
1       32.35    5.94    4.50    179.91     179.91     0.00     0.00    
100  
2       31.31    10.80   9.27    371.77     185.88     0.40     1.29    
98   
3       34.63    15.23   13.94   504.19     168.06     0.25     0.74    
99   
4       40.22    18.84   18.58   578.82     144.70     1.07     2.74    
97   
5       48.83    23.89   23.31   595.95     119.19     0.84     1.76    
98   
6       58.67    28.74   28.11   595.19     99.20      1.96     3.46    
96   
7       68.28    32.71   33.19   596.66     85.24      1.02     1.52    
98   
8       77.41    37.61   37.58   601.47     75.18      0.76     1.00    
99   
9       86.21    41.55   42.28   607.59     67.51      1.44     1.71    
98   
10      95.30    45.91   46.78   610.70     61.07      1.46     1.56    
98   
11      106.35   51.52   51.38   601.97     54.72      0.82     0.78    
99   
Crossover achieved
Max Jobs per Minute 610.70
REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
1       32.33    5.88    4.46    180.02     180.02     0.00     0.00    
100  
2       31.53    10.07   9.19    369.17     184.59     0.38     1.20    
98   
3       35.76    14.74   14.01   488.26     162.75     1.13     3.23    
96   
4       41.04    19.34   18.52   567.25     141.81     1.47     3.70    
96   
5       49.68    24.37   23.11   585.75     117.15     1.32     2.72    
97   
6       58.14    27.69   28.40   600.62     100.10     0.64     1.12    
98   
7       68.26    33.09   33.00   596.84     85.26      0.87     1.30    
98   
8       77.46    37.61   37.39   601.08     75.14      0.85     1.11    
98   
9       86.90    42.44   42.03   602.76     66.97      1.51     1.76    
98   
10      95.84    46.22   46.81   607.26     60.73      1.11     1.18    
98   
11      106.16   51.65   51.22   603.05     54.82      1.32     1.26    
98   
Crossover achieved
Max Jobs per Minute 607.26
REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
1       32.64    5.95    4.62    178.31     178.31     0.00     0.00    
100  
2       32.83    10.56   9.20    354.55     177.28     0.27     0.83    
99   
3       36.69    15.87   13.83   475.88     158.63     0.15     0.41    
99   
4       40.89    19.04   18.71   569.33     142.33     0.21     0.51    
99   
5       49.90    23.61   23.39   583.17     116.63     0.60     1.22    
98   
6       59.07    28.39   28.51   591.16     98.53      1.77     3.09    
96   
7       67.94    32.63   32.75   599.65     85.66      1.05     1.58    
98   
8       76.17    36.23   37.74   611.26     76.41      3.08     4.15    
95   
9       86.15    41.37   42.21   608.01     67.56      0.97     1.14    
98   
10      95.27    46.00   46.57   610.90     61.09      1.29     1.37    
98   
11      105.61   51.56   51.21   606.19     55.11      0.79     0.76    
99   
Crossover achieved
Max Jobs per Minute 611.26

===========================

(Carlos, I have no really clue about bench, so if you find some other test
that will better respond to your expectations, do not hesitate ... I will
try to do my best :) )

Joel



-------------------------------------------------------------------------
Tiscali ADSL, seulement 35 eur/mois et le modem est inclus...abonnez-vous!
http://reg.tiscali.be/default.asp?lg=fr 




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Xref: news.gmane.org gmane.linux.ports.parisc:19196

On Tue, Aug 12, 2003 at 07:06:44PM +0200, Joel Soete wrote:
> >
> >osdl-aim-7 benchmark probably stresses both itlb and dtlb.
> >(available from osdl.org - URL is in linux-ia64 archive)
> 
> Ok I finaly find it as re-aim-7 sf.net project.

I also pulled bits from sf.net for ia64 testing:
    http://umn.dl.sourceforge.net/sourceforge/re-aim-7/reaim-0.1.8.tar.gz

though I know the maintainer planed to change the name since then:
| Apoligies, the naming was not good.
| I'll attempt to change it. ( i like osdl-aim-7 )
| In the meantime, you can also get the source from
| 
| bk://developer.osdl.org/reaim
| cliffw


> Just launch (alltest) with
> kernel-64bits+ C.patch . I will let run for the night and relaunch it with
>  tommorrow morning with original kernel-64bits.

I was told to run with:
iota:/mnt# reaim -f /mnt/usr/local/share/reaim/workfile.new_dbase -s100 -e 500 -i 100

You might need to pick -s and -e values that are more appropriate for
the machine under test. This was for dual CPU 900Mz rx2600 with 2GB RAM.

hth,
grant



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> Well I finaly find it on sf.net (via osdl.org)
> And submit some bench which seems to be more in relation with vm (?):
> ./reaim -x -t -f worfile.shared -r3

Thanks for that run Joel, I'll take a look at the numbers in a few
minutes. Adding to that here is the lmbench results (urls) for both
the non-optimized and optimized cases of the itlb fault handler.

It seems that some things got faster, or rather more predictably fast
within the confidence levels (e.g. number of tests that I ran).

I ran 10 lmbench run's for each of the two kernels and then munged them
using the stat-summary script provided with lmbench. Do the diff to see
the numbers change :)

Looks like we have better performance in many places.

null call, null i/o, stat, open/close, select, signal install, signal
catch, exec, shell proc, (a variety of the process spawning tests),
create, delete, mmap latency, page fault (way down! and deterministic)
-- All got better with itlb branch prediction optimization

Please give it a double check to make sure I'm not out of it this
morning.

http://www.baldric.uwo.ca/~carlos/itlb-opt.txt
http://www.baldric.uwo.ca/~carlos/no-itlb-opt.txt

c.



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> Thanks for that run Joel, I'll take a look at the numbers in a few
> minutes. Adding to that here is the lmbench results (urls) for both
> the non-optimized and optimized cases of the itlb fault handler.

I forgot that lamont noticed an interlocked zdep in the PA11 common case
and we reorderd the insn sequence. Perhaps this helped the numbers a
bit. I have to run the same lmbench tests on a 64-bit box first to
compare.

c.



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>I also pulled bits from sf.net for ia64 testing:
>    http://umn.dl.sourceforge.net/sourceforge/re-aim-7/reaim-0.1.8.tar.gz

I will also catch it


>I was told to run with:
>iota:/mnt# reaim -f /mnt/usr/local/share/reaim/workfile.new_dbase -s100
-e 500 > -i 100

>You might need to pick -s and -e values that are more appropriate for
>the machine under test. This
> was for dual CPU 900Mz rx2600 with 2GB RAM.

That is also what I just read on a bench on lwn :) 

I will adapt

Thanks,
    Joel

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>I forgot that lamont noticed an interlocked zdep in the PA11 common case

hmm what is an interlock? (just to complet my knowledge)

>and we reorderd the insn sequence. Perhaps this helped the numbers a
>bit. 
If I well understand reverse the zdep move in the code?
(I would play just a bit more with different bench)

>I have to run the same lmbench tests on a 64-bit box first to
>compare.

Nice I hope that will confirm lmbench results :)

Joel


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On Wed, Aug 13, 2003 at 06:43:27PM +0200, Joel Soete wrote:
> hmm what is an interlock? (just to complet my knowledge)

It's the logic in a CPU to stall an instruction which is waiting
for the results of a previous instruction.
ie the register contents used by the second instruction are not valid
until any previous instruction actually completes.

grant


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On Sun, Aug 10, 2003 at 10:34:57PM -0600, Grant Grundler wrote:
> This started out as an issue with glxinfo program in xfree86.

I've built a full set of xfree86-4.2.1-9 hppa debs with gcc 3.3.1.
(last ones in "testing" are 4.2.1-6 and built with gcc 3.0.1 IIRC)

Public URL	http://gsyprf11.external.hp.com/hppa/xfree86-4.2.1-9/
HP Internal 	http://debian.cup.hp.com/parisc/xfree86-4.2.1-9/

The bits seem to run fine on my c3k...but xpdf still fails:

grundler <513>xpdf -cmap dino31.pdf 
Error: Unresolved inheritance operation
grundler <514>
...
grundler <516>dpkg -l xlibs
Desired=Unknown/Install/Remove/Purge/Hold
|
Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err:
uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  xlibs          4.2.1-9        X Window System client libraries

*sigh*.
Do I need to restart X11 or something?

grant


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On Wed, 2003-08-13 at 12:53, Grant Grundler wrote:
> grundler <513>xpdf -cmap dino31.pdf 
> Error: Unresolved inheritance operation
> grundler <514>

Hmm, it looks like you still have the libXt problem.  Are you sure you
installed the newly compiled one?

> *sigh*.
> Do I need to restart X11 or something?

I didn't.  All I did was pull libXt.so.6.0 out of the gcc-3.3.1 build
and copy it into /usr/X11R6/lib.  Then xpdf worked for me.

James




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On Wed, Aug 13, 2003 at 03:11:42PM -0500, James Bottomley wrote:
> Hmm, it looks like you still have the libXt problem.  Are you sure you
> installed the newly compiled one?

I did...but you are definitely asking the right qustion.
I didn't see:
grundler@debian:~$ ls -l /usr/X11R6/lib/libXt.so*
lrwxrwxrwx    1 root     root           10 Jul 10 11:13 /usr/X11R6/lib/libXt.so -> libXt.so.6
lrwxrwxrwx    1 root     root           17 Aug 12 10:29 /usr/X11R6/lib/libXt.so.6 -> libXt.so.6.0-orig
-rw-r--r--    1 root     root       402072 Aug 11 19:55 /usr/X11R6/lib/libXt.so.6.0
-rw-r--r--    1 root     root       397408 Feb 25 21:57 /usr/X11R6/lib/libXt.so.6.0-orig

deleting the -orig file(s!) and fixing up the symlink(s) got xpdf
working again.  Yeah!
I found 6 or 7 X11/libs had been redirected to the -orig files.

Thanks for asking the right stupid question....and I'll have
to take the blame for leaving -orig files laying around.
Randolph observed ldconfig will fixup the links if something
"newer" (based on filename) is available. And "man ldconfig"
talks about how that works. *sigh*

Besides the /lib and /usr/lib directories (default), ldconfig
also looks at:
grundler <525>cat /etc/ld.so.conf 
/usr/X11R6/lib
grundler <526>


if I can just figure out what's botching the colors for xchat2 now...

thanks,
grant


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On Wed, 2003-08-13 at 16:32, Grant Grundler wrote:
> if I can just figure out what's botching the colors for xchat2 now...

Is this with one of the Visualize cards?  They only do 8bpp at all
resolutions, so if you run a colourful window manager, you run out
pretty quickly.  Even using the default fvwm, I had to run xpdf with a
private colourmap (-cmap option) to get my slides to show up as anything
like reasonable).

A lot of modern applications (particularly of the kde or gnome variety)
pay absolutely no attention to potential colour map limitations and can
blithely request more colours than you have available (and sometimes not
even check for failure returns).

James




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On Mer, 2003-08-13 at 23:53, James Bottomley wrote:
> A lot of modern applications (particularly of the kde or gnome variety)
> pay absolutely no attention to potential colour map limitations and can
> blithely request more colours than you have available (and sometimes not
> even check for failure returns).

Set the display to a fixed colour mapping is the simplest approach.
XFree 4.x is quite happy to let you set different visuals and get
things like an 8bit fixed palette



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On Wed, Aug 13, 2003 at 05:53:33PM -0500, James Bottomley wrote:
> Is this with one of the Visualize cards?  They only do 8bpp at all
> resolutions, so if you run a colourful window manager, you run out
> pretty quickly.  Even using the default fvwm, I had to run xpdf with a
> private colourmap (-cmap option) to get my slides to show up as anything
> like reasonable).

yes. And I'm using fvwm2 which I thought was supposed to be a fairly
(not totally) light weight window manager. I'll see if there are
knobs to reduce the FVWM color consumption.

> A lot of modern applications (particularly of the kde or gnome variety)
> pay absolutely no attention to potential colour map limitations and can
> blithely request more colours than you have available (and sometimes not
> even check for failure returns).

yup - I was looking to find the code to and at least print a warning
so I know that's the problem. I've spent < 1h hunting through the code
to figure out where the colors for the text box was allocated. Haven't
found it yet though.


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>
>I forgot that lamont noticed an interlocked zdep in the PA11 common case
>and we reorderd the insn sequence. Perhaps this helped the numbers a
>bit. I have to run the same lmbench tests on a 64-bit box first to
>compare.

btw is it for that reason (interlock) that in your patch we can read:
[...]
        cmpb,=        %r0,t0,itlb_miss_...
        nop
[...]
I am alway asking why the 'nop'.

Thanks in advance,
    Joel



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On Thu, Aug 14, 2003 at 08:02:04AM +0200, Joel Soete wrote:
> btw is it for that reason (interlock) that in your patch we can read:
> [...]
>         cmpb,=        %r0,t0,itlb_miss_...
>         nop
> [...]
> I am alway asking why the 'nop'.

To fill the delayed branch slot (a silly idea, but ...)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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>This fill the delayed branch slot (a silly idea, but ...)

Ha Ok (yet another concept for me ;-).  I will look for into architecture
books)

For the moment I am studying TLB miss handling and already have a lot of
questions.

But the very first one: H/W or S/W management (I refer to page 3-9 parisc-2.0:
Adress Resolution and the TLB)?

In the 2 cases, if a fault occurs an interrupt (6, 15, 16,17 or 20) is 'triggered'?

Is a printk() in corresponding handle_interruption() case (kernel/traps.c)
would help?
(if that work, how may I know which processor causes fault?)

Thanks again,
    Joel


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Hi,
What exactly are the implications of turning on CONFIG_DISCONTIGMEM?
Does this lead to serious system degradation? I do see a message being
printed on the console during bootup, stating that heavy swapping could
take place, and it is a mistake to turn on this option. I also see a
comment in the code saying that this option is not implemented well. How
seriously will it affect a system thats not running too many processes?
Regards,
Naresh.





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On Thu, Aug 14, 2003 at 07:42:38PM +0530, Naresh wrote:
> Hi,
> What exactly are the implications of turning on CONFIG_DISCONTIGMEM?
> Does this lead to serious system degradation? I do see a message being
> printed on the console during bootup, stating that heavy swapping could
> take place, and it is a mistake to turn on this option. I also see a
> comment in the code saying that this option is not implemented well. How
> seriously will it affect a system thats not running too many processes?

The discontigmem code in 2.4 is very badly written.  it basically
limits you to using the size of the smallest area multiplied by the
number of areas.  on an astro-based system, that's 256MB * 3 = 768MB.
as the warning says, don't turn it on.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi.
Continuing with the K360 saga, it seems the Zalon driver is not 64-bit 
clean.
By removing it from the kernel config i'm able to boot a 64 bit kernel 
on a K360, but obviously i won't get any network or wide scsi working, 
so it isn't quite useful.
Is anyone aware of this / working on a solution / planning on working? 
Or maybe there's no interest in this?
Thanks in advance.




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On Thu, Aug 14, 2003 at 03:56:42PM +0200, Joel Soete wrote:
> In the 2 cases, if a fault occurs an interrupt (6, 15, 16,17 or 20) is
> 'triggered'?

yes, but most people call them "traps" or "faults" to be more specific.
Chapter 5 of the PA 2.0 arch book differentiates nicely.

grant


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>> 
>> On Thu, Aug 14, 2003 at 03:56:42PM +0200, Joel Soete wrote:
>> In the 2 cases, if a fault occurs an interrupt (6, 15, 16,17 or 20) is
>> 'triggered'?
>>
>yes, but most people call them "traps" or "faults" to be more specific.
>Chapter 5 of the PA 2.0 arch book differentiates nicely.

Yes (that is from where came 6,15,.. reference).
Oh yes, my bad: I didn't notice that here interrupt is not the shortcut of
interruptions as I use to make the mishmash :(

Thanks,
    Joel


-------------------------------------------------------------------------
Tiscali ADSL, seulement 35 eur/mois et le modem est inclus...abonnez-vous!
http://reg.tiscali.be/default.asp?lg=fr 




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Hi all,

1. PALO docs tell "recoverykernel" in palo.conf is the path to the kernel that
you want to boot within a failsafe session, it will be stored in the 'f0'
partition. Do I undertstand correctly that command like 
palo &#8211;I /dev/sda
copies file specified by paloc.conf line
--recoverykernel=/boot/vmlinux   ?

2. Is it possible to see f0 partition contents? In HP-UX, there are commands
working with LIF files like lifls and lifcp. How can I check if there is a
recovery kernel in PALO area?

3. I noticed palo warns about bad DOS magic. Is it normal?

# palo -I /dev/sda
palo version 1.0 bame@palinux Mon Apr  1 10:03:01 MST 2002
ELF32 executable
Bad DOS magic in extended partition 

fdisk -l /dev/sda

Disk /dev/sda: 64 heads, 32 sectors, 8683 cylinders
Units = cylinders of 2048 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sda1             1        17     17392   f0  Linux/PA-RISC boot
/dev/sda2            18        50     33792   fd  Linux raid autodetect
/dev/sda3            51       563    525312   fd  Linux raid autodetect
/dev/sda4           564      8683   8314880    5  Extended
/dev/sda5           564      4683   4218864   fd  Linux raid autodetect
/dev/sda6          4684      8683   4095984   fd  Linux raid autodetect

Many thanks in advance for your clever comments!

BR,
Mihails


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> Hi all,
> 
> 1. PALO docs tell "recoverykernel" in palo.conf is the path to the kernel that
> you want to boot within a failsafe session, it will be stored in the 'f0'
> partition. Do I undertstand correctly that command like 
> palo &#8211;I /dev/sda
> copies file specified by paloc.conf line
> --recoverykernel=/boot/vmlinux   ?

Yes, that kernel is copied to the f0 partition (or wherever you designate)

> 2. Is it possible to see f0 partition contents? In HP-UX, there are commands
> working with LIF files like lifls and lifcp. How can I check if there is a
> recovery kernel in PALO area?

Palo shows the contents in a very crude form during booting.  There is
no file system as such, like LIF, in the f0 partition, thus no convenient
tools for that.  Thought about doing something like that but the
payoff doesn't seem worth it especially since we usually boot kernels
from the file system anyway.  Feel free to send me a patch for "palo --ls"
or something :-)

> 3. I noticed palo warns about bad DOS magic. Is it normal?

Harmless if annoying.  From the source:

            /* we're currently using 32-bit file seeks which is ok since
             * the IPL is also limited to 2G right now.  So on big disks
             * this next read may fail, and we need to let that happen
             * gracefully.
             */
            if (seekread(bootdev, (char *)&fb, sizeof fb, 512 * offset) == -1)
                break;
            if (fb.dosmagic[0] != 0x55 || fb.dosmagic[1] != 0xaa)
            {
                printf("Bad DOS magic in extended partition\n\r");
                break;
            }

Either the disk is improperly formatted or (more likely) the seekread()
call isn't returning the -1 error like it should.  Since we can't
boot from anything past the 2G limit anyway it doesn't matter.



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Hi Grant,

> yup - I was looking to find the code to and at least print a warning
> so I know that's the problem. I've spent < 1h hunting through the code
> to figure out where the colors for the text box was allocated. Haven't
> found it yet though.

Just to be sure this is indeed a colormap issue, start an X session using twm, then only launch xchat. If the colors are "OK", then it's a pretty good bet that the default colormap is max-ed out.

Also, I've attached is short Xlib program. This will report the number of private color cells remaining in the default colormap.

-chuck







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[ replying to list...everyone learns something ]

On Thu, Aug 14, 2003 at 02:16:37PM -0700, jmd wrote:
> grant...
> 
> something is amiss here. the small section of the PCI connector is
> towards the front of the card. standard PCI cards the sector is in the
> rear (opposite end of backplane). is this a mistake on hp's part? am i
> crazy?? need glasses checked?

that's 3.3v vs 5v keying. HP(-UX) normally only sells "universal" cards
that have both 3.3 and 5v keying.

> so if this is a no go with PCI, can i put an ISA card in the EISA slot?
> major problems if i do this? i have a 3com etherlink III.

I guess. I don't touch EISA.

> this is a temporary server. if its complicated i will pass on it.

If the PCI card doesn't fit (wrong keying), then I'd pass on it.
Just my $0.02.

> btw.... when i am done with this box (month or so) its available for a
> developer if they wish to have it. cost of shipping only.

cool - thanks!
Can anyone make use of a C180?
PA2.0, PCI/EISA/GSC IO, 4 IO slots.

grant


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Subject: Re: xchat colors (Was Re:  [parisc-linux] xfree86 4.2.1-9 build problem)
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On Thu, Aug 14, 2003 at 10:26:38PM +0000, caslivkoff@speakeasy.net wrote:
> Just to be sure this is indeed a colormap issue, start an X session
> using twm, then only launch xchat. If the colors are "OK",
> then it's a pretty good bet that the default colormap is max-ed out.
> 
> Also, I've attached is short Xlib program. This will report the
> number of private color cells remaining in the default colormap.

The attachement didn't make it through.
I got the copy at another email address and put the hppa binary,
source, and "README" in a tarball:
	http://iou.parisc-linux.org/hppa/xcmap.tgz

When running twm on c3k (1280x1024x8), xcmap reports:
| Default visual is 256-color PseudoColor
| 10 private color cells available

Things are worse with fvwm:
| Default visual is 256-color PseudoColor
| 0 private color cells available

It didn't matter which window mangler I used.
Both failed to provide the text color.

xchat2 wants 23 colors - but they don't need to be private though.
Will add some more printks to xchat so I know what/how it's failing.

thanks again for xcmap....handy in this case.

grant


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On Thu, Aug 14, 2003 at 10:26:38PM +0000, caslivkoff@speakeasy.net wrote:
> Also, I've attached is short Xlib program. This will report the
> number of private color cells remaining in the default colormap.

moving my .Xdefaults to Xdefaults-ggg got me two more colors with twm
(grand total of 12).

Another clue is messing with color settings in the
preferences gets me something visible in the text box.
Wierd is it mangled the xterm foreground for *new* xterms,
not the existing ones....at least until I restored my .Xdefaults
and opened new xterms.

Seems like I want to figure out how to setup a fixed color
map as suggest earlier by Alan Cox. Or fix xchat so it
doesn't attempt to get writeable colors until someone
messes with the color preferences.

thanks,
grant


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On Fri, 2003-08-15 00:16:01 -0600, Grant Grundler <grundler@parisc-linux.or=
g>
wrote in message <20030815061601.GD2989@dsl2.external.hp.com>:
> On Thu, Aug 14, 2003 at 10:26:38PM +0000, caslivkoff@speakeasy.net wrote:
> > Also, I've attached is short Xlib program. This will report the
> > number of private color cells remaining in the default colormap.
>=20
> Seems like I want to figure out how to setup a fixed color
> map as suggest earlier by Alan Cox. Or fix xchat so it
> doesn't attempt to get writeable colors until someone
> messes with the color preferences.

Um, maybe this is related to XFree problems in Debian/unstable?
Unstable's current XFree (4.2.1.1) "RENDER" extension (used for
anti-aliasing IIRC) takes a _lot_ of colors for it's own (rumors I
heared talked about > 200 IIRC) so generally, you won't be left with a
useable X in unstable (because with 8bit depth, there's only a hand full
of remaining colors available at all:)

Later X versions allow you to kill the RENDER extension so you'll get
your colors back. But until then...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
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k!
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On Thu, Aug 14, 2003 at 10:26:38PM +0000, caslivkoff@speakeasy.net wrote:
> Just to be sure this is indeed a colormap issue,

Ok - it's a color map issue.
I added some printf's to xchat-2.0.3/fe-gtk/palette.c:palette_alloc().

I'll see how hard it is to teach xchat to use it's own color map.

grant

grundler <527>xchat
palette_alloc() cmap has 256 colors
palette_alloc() alloc color failed for 21 (0x0 0x0 0xffff)
palette_alloc() alloc color failed for 20 (0x8c8c 0x1010 0x1010)
palette_alloc() alloc color failed for 19 (0x0 0x0 0x0)
palette_alloc() alloc color failed for 18 (0xc866 0xc866 0xc866)
palette_alloc() alloc color failed for 17 (0x0 0x0 0x0)
palette_alloc() alloc color failed for 16 (0xa4a4 0xdfdf 0xffff)
palette_alloc() alloc color failed for 15 (0x9999 0x9999 0x9999)
palette_alloc() alloc color failed for 14 (0x7777 0x7777 0x7777)
palette_alloc() alloc color failed for 13 (0xeeee 0x2222 0xeeee)
palette_alloc() alloc color failed for 12 (0x0 0x0 0xffff)
palette_alloc() alloc color failed for 11 (0x3333 0xeeee 0xffff)
palette_alloc() alloc color failed for 10 (0x0 0xcccc 0xcccc)
palette_alloc() alloc color failed for 9 (0x3333 0xdede 0x5555)
palette_alloc() alloc color failed for 8 (0xeeee 0xdddd 0x2222)
palette_alloc() alloc color failed for 7 (0xffff 0xaaaa 0x0)
palette_alloc() alloc color failed for 6 (0xbbbb 0x0 0xbbbb)
palette_alloc() alloc color failed for 5 (0xaaaa 0x0 0x0)
palette_alloc() alloc color failed for 4 (0xdddd 0x0 0x0)
palette_alloc() alloc color failed for 3 (0x0 0xcccc 0x0)
palette_alloc() alloc color failed for 2 (0x0 0x0 0xcccc)
palette_alloc() alloc color failed for 1 (0x0 0x0 0x0)
palette_alloc() alloc color failed for 0 (0xcf3c 0xcf3c 0xcf3c)
grundler <528>



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On Fri, 2003-08-15 at 12:21, Grant Grundler wrote:
> On Thu, Aug 14, 2003 at 10:26:38PM +0000, caslivkoff@speakeasy.net wrote:
> > Just to be sure this is indeed a colormap issue,
> 
> Ok - it's a color map issue.
> I added some printf's to xchat-2.0.3/fe-gtk/palette.c:palette_alloc().
> 
> I'll see how hard it is to teach xchat to use it's own color map.

Perhaps take Alan's suggestion instead...give the framebuffer a Direct
or True Colour visual instead of Pseudocolour.

That will look rather strange because you'll only get two or three bits
for each primary, but it will mean that you can't run out of colours.

I'll see if I can figure out how to set this up...the documentation
appears to be a bit sparse [unless Alan has any hints].

James




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On Fri, 2003-08-15 at 13:19, James Bottomley wrote:
> I'll see if I can figure out how to set this up...the documentation
> appears to be a bit sparse [unless Alan has any hints].

OK, the way you do this is to start x and then type xdpyinfo.  As part
of a general list, it should give you all the visuals (including the one
it's picked as the default).

Then, you simply choose the TrueColor visual, count its index down from
the top (starting at zero---note, this isn't the visual id xdpyinfo
gives you) and then feed this back into startx:

startx -- -cc <visual index>

So on the B180, my visuals output looks like:

  number of visuals:    8
  default visual id:  0x29
  visual:
    visual id:    0x27
    class:    PseudoColor
    depth:    8 planes
    available colormap entries:    256
    red, green, blue masks:    0x0, 0x0, 0x0
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x28
    class:    GrayScale
    depth:    8 planes
    available colormap entries:    256
    red, green, blue masks:    0x0, 0x0, 0x0
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x29
    class:    StaticColor
    depth:    8 planes
    available colormap entries:    256
    red, green, blue masks:    0x7, 0x38, 0xc0
    significant bits in color specification:    8 bits
 [...]

So to get the StaticColor visual, I issue

startx -- -cc 2

The colours are slightly off, though (my white has now got a bluish
tinge, but I assume you can find a better visual than the one I chose).

James




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On Gwe, 2003-08-15 at 19:19, James Bottomley wrote:
> I'll see if I can figure out how to set this up...the documentation
> appears to be a bit sparse [unless Alan has any hints].

In the display section

	Visual  "TrueColor"

See man XF86Config



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Wondering if anyone has experienced problems with the first gen
Itanium Merced chips and its supposed floating point bug? Is it worth
the effort to get new CPU's? being offered?



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On Sat, Aug 16, 2003 at 12:58:16AM -0600, alaskan@telusplanet.net wrote:
> Wondering if anyone has experienced problems with the first gen
> Itanium Merced chips and its supposed floating point bug? Is it worth
> the effort to get new CPU's? being offered?

this is parisc, not ia64.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Friday, Aug 15, 2003, at 13:21 US/Eastern, Grant Grundler wrote:

> Ok - it's a color map issue.
> I added some printf's to xchat-2.0.3/fe-gtk/palette.c:palette_alloc().
>
> I'll see how hard it is to teach xchat to use it's own color map.

I recall looking into this once with a GTK+ app. It wasn't trivial. 
Even if you do get it coded, you will likely end-up with colormap 
flashing (aka "technicolor effect") when focus is switched in & out of 
the client window. The Vis-EG has 2 HW LUTs which under HP-UX, would 
prevent the technicolor effect by allowing 2 colormaps to be installed 
in HW simultaneously. But, I don't know if the stifb driver was written 
to take advantage of them both. If you can accept the "off" colors that 
an 8-bit TrueColor default visual would give you (due to the uneven 
3/3/2 split between R/G/B), that would be the easiest solution & would 
ensure that all clients can get the colors they want.

This is on a Visualize-EG, right? Under HP-UX, the Vis-EG (standard on 
the PCI card & optionally on the GSC & integrated versions) has the 
capability of doing 8/8 double-buffering with another 8-bit overlay. It 
would be great if the stifb driver could really take advantage of all 
24-planes (or even 16), but I don't think that's been implemeneted. 
Does anyone know if it's even possible? (I know NeXTStep on the 712 was 
able to somehow squeeze 16-bit graphics out of the supposedly 8-bit 
Artist adapter. Anyone have any idea how this was done?)

BTW, there's a pretty good but somewhat old (May 1996) white-paper here:

   http://www.hp.com/xwindow/sharedInfo/Whitepapers/Visuals/visuals.html

that discusses X11 visuals and the capabilities of some of the HP 
graphics adapters under HP-UX.


-chuck



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Wondering if anyone has experienced problems with the first gen
Itanium Merced chips and its supposed floating point bug?=20

Is it worth the risk to install these alternate stepping CPU's?




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Hi Willy,

I come back to you about your mail: 
<http://lists.parisc-linux.org/pipermail/parisc-linux/2002-March/015827.html>
in which you spoke about "Strech (the memory controller)". Do you have 
more docs about this device?

I put you this question because in "PA 2.0 architecture" book, it is 
mentionned that 'systems' could be equiped with a hardware cache manager 
and so i would like to know if "Strech" is such a device.
Secondarily, is there some hp9000 with such 'hardware cache' manager and 
which one?

btw is there a means to get cache's tags and corresponding physical 
adresses to put it in a table to dump it for each processors (assuming 
that each processor cache are managed independently: don't have yet 
enough clue about this detail) at crash time (to verify if two processor 
do not try to access wrongly the same physical page)?

Thanks in advance,
    Joel





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On Sat, 2003-08-16 01:43:01 +0100, Alan Cox <alan@lxorguk.ukuu.org.uk>
wrote in message <1060994580.9255.1.camel@dhcp23.swansea.linux.org.uk>:
> On Gwe, 2003-08-15 at 19:19, James Bottomley wrote:
> > I'll see if I can figure out how to set this up...the documentation
> > appears to be a bit sparse [unless Alan has any hints].
>=20
> In the display section
>=20
> 	Visual  "TrueColor"

Now, after our hero Alan "fixed" our Xfree configury, I can really use
X11 on my B132L+ with Debian unstable:) There are still some little
problems (The "less-than, greater-than and pipe" key doesn't yet work,
and some apps don't seem to correctly work (mozilla-snapshot, dillo),
but we're almost there:) Oh, when I press NumLock (with X11), the
keyboard doesn't respond any longer (I need to shutdown X11 using the
mouse) and "gsckbd_leds: timeout" is logged...

I'm just compiling current CVS, maybe I can fix something.

Happy meeting at Oldenburg!

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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From: MarquiS <marquis-@gmx.net>
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Subject: [parisc-linux] how to compile i386 code for my hppa box ?
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hi list and sorry for my english :(

i have the source code from fantastic "amiga research os" (www.aros.org)
this package is only for i386 and ppc cpu.
my question is:
-how to port this code to a hp masch. (hp 7xx/xxx,) ?
-is this very heavy work ? -can somebody this nice thing port to parisc-cpu 
? (please :) ) native or host OT:
-the aros team search many people to work on this (all arch) please look @ 
www.aros.org :)

thx MarquiS


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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [RFC] change corefile OSABI to ELFOSABI_LINUX
Date: Sun, 17 Aug 2003 12:29:24 -0700
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Hi all,

Currently, on hppa-linux, gcc produces objects with the OSABI field set
to Linux. AFAIK, we are the only Linux architecture that does this,
everyone else uses ELFOSABI_NONE (i.e. "System V")

The Linux kernel, however, produces corefiles with OSABI=NONE (actually
it doesn't set it explicitly, so it defaults to 0, which is the SYSV
definition). The Debian gdb package has a patch in bfd that works around
this inconsistency.

Should we make the two consistent? Here's a patch that sets OSABI to
Linux for corefile generation. We will still need the bfd code for
backward compatibility, but moving forward it'll be good for things to
be more consistent :)

comments?
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


Index: fs/binfmt_elf.c
===================================================================
RCS file: /var/cvs/linux-2.6/fs/binfmt_elf.c,v
retrieving revision 1.2
diff -u -p -r1.2 binfmt_elf.c
--- fs/binfmt_elf.c	29 Jul 2003 17:25:49 -0000	1.2
+++ fs/binfmt_elf.c	17 Aug 2003 19:19:16 -0000
@@ -1023,6 +1023,7 @@ static inline void fill_elf_header(struc
 	elf->e_ident[EI_CLASS] = ELF_CLASS;
 	elf->e_ident[EI_DATA] = ELF_DATA;
 	elf->e_ident[EI_VERSION] = EV_CURRENT;
+	elf->e_ident[EI_OSABI] = ELF_OSABI;
 	memset(elf->e_ident+EI_PAD, 0, EI_NIDENT-EI_PAD);
 
 	elf->e_type = ET_CORE;
Index: include/asm-parisc/elf.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/elf.h,v
retrieving revision 1.1
diff -u -p -r1.1 elf.h
--- include/asm-parisc/elf.h	29 Jul 2003 17:02:03 -0000	1.1
+++ include/asm-parisc/elf.h	17 Aug 2003 19:19:17 -0000
@@ -283,6 +283,7 @@ struct pt_regs;	/* forward declaration..
  */
 #define ELF_DATA	ELFDATA2MSB
 #define ELF_ARCH	EM_PARISC
+#define ELF_OSABI 	ELFOSABI_LINUX
 
 /* %r23 is set by ld.so to a pointer to a function which might be 
    registered using atexit.  This provides a mean for the dynamic
Index: include/linux/elf.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/linux/elf.h,v
retrieving revision 1.1
diff -u -p -r1.1 elf.h
--- include/linux/elf.h	29 Jul 2003 17:02:11 -0000	1.1
+++ include/linux/elf.h	17 Aug 2003 19:19:19 -0000
@@ -360,7 +360,8 @@ typedef struct elf64_shdr {
 #define	EI_CLASS	4
 #define	EI_DATA		5
 #define	EI_VERSION	6
-#define	EI_PAD		7
+#define	EI_OSABI	7
+#define	EI_PAD		8
 
 #define	ELFMAG0		0x7f		/* EI_MAG */
 #define	ELFMAG1		'E'
@@ -381,6 +382,13 @@ typedef struct elf64_shdr {
 #define EV_NONE		0		/* e_version, EI_VERSION */
 #define EV_CURRENT	1
 #define EV_NUM		2
+
+#define ELFOSABI_NONE	0
+#define ELFOSABI_LINUX	3
+
+#ifndef ELF_OSABI
+#define ELF_OSABI ELFOSABI_NONE
+#endif
 
 /* Notes used in ET_CORE */
 #define NT_PRSTATUS	1


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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] [RFC] change corefile OSABI to ELFOSABI_LINUX
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On Sun, Aug 17, 2003 at 12:29:24PM -0700, Randolph Chung wrote:
> Should we make the two consistent? Here's a patch that sets OSABI to
> Linux for corefile generation. We will still need the bfd code for
> backward compatibility, but moving forward it'll be good for things to
> be more consistent :)
> 
> comments?

Looks good, do you want to commit it to 2.4 and 2.6?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: MarquiS <marquis-@gmx.net>
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Subject: [parisc-linux] how to use internal speaker on my hp712
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hi list

how to use the internal speaker on my hp712 ?


thx



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Subject: Re: [parisc-linux] how to use internal speaker on my hp712
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On Mon, Aug 18, 2003 at 03:51:36PM +0200, MarquiS wrote:
> hi list
> 
> how to use the internal speaker on my hp712 ?

Harmony driver.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


From - Thu Nov 08 21:28:51 2018
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From: m.delahaye@esiee.fr (Matthieu Delahaye)
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Subject: Re: [parisc-linux] how to use internal speaker on my hp712
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On Mon, Aug 18, 2003 at 03:51:36PM +0200, MarquiS wrote:
> hi list
> 
> how to use the internal speaker on my hp712 ?
> 
> 
> thx

The internal speaker is directly connected to the harmony chipset.
It is disable if something is connected on line-out.
So:
- check harmony is selected in your kernel configuration.
- check your volume setup is not to 0
- play and enjoy

Matthieu

> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
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Then they laugh at you.
Then they fight you.
Then you win
(Gandhi) 



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From: Jesse Dougherty <jesse@cypress-tech.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] <Plug> Used / Refurbished HP 3000/9000 Hardware Pricing
Date: Mon, 18 Aug 2003 11:04:51 -0400
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A price list of used/refurbished HP 3000 & 9000 MPE & HP-UX series
products for sale is located at:
www.cypress-tech.com/specials.htm

Feel free to enquire about HP equipment desired but not listed on our
site. Please call or email if you wish to purchase any HP equipment or
if you have any 3000/9000 or peripheral hardware that you want to sell.


Thanks
Jesse Dougherty
Cypress Technology, Inc
Re-Sellers of HP 3000/9000 Hardware
12890 Automobile Blvd
Clearwater, FL 33762
727-557-0911 / fax 727-557-0014
jesse@cypress-tech.com
www.cypress-tech.com




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Subject: [parisc-linux] [2.6.x] No NumLock with XFree86
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--S8hWgp6Wl+RBuNna
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Hi!

With X11, the NumLock key is no longer working (seems the 2.4.x -> 2.6.x
transition:) I've seen the the gsc_ps2 driver got some really nice
touch-ups since it's 2.4.x version, but NumLock doesn't work. With
debugging switched on, I get these lines:

jbglaw@b132l-1:~$ dmesg |tail -n 15
drivers/input/misc/gsc_ps2.c:rel=3D0 scancode=3D34, esc=3D0 <7>drivers/inpu=
t/misc/gsc_ps2.c:sent=3D34, rel=3D0
drivers/input/misc/gsc_ps2.c:rel=3D0 scancode=3D240, esc=3D0 <7>drivers/inp=
ut/misc/gsc_ps2.c:release
drivers/input/misc/gsc_ps2.c:rel=3D1 scancode=3D44, esc=3D0 <7>drivers/inpu=
t/misc/gsc_ps2.c:sent=3D44, rel=3D1
drivers/input/misc/gsc_ps2.c:rel=3D0 scancode=3D240, esc=3D0 <7>drivers/inp=
ut/misc/gsc_ps2.c:release
drivers/input/misc/gsc_ps2.c:rel=3D1 scancode=3D34, esc=3D0 <7>drivers/inpu=
t/misc/gsc_ps2.c:sent=3D34, rel=3D1
drivers/input/misc/gsc_ps2.c:rel=3D0 scancode=3D90, esc=3D0 <7>drivers/inpu=
t/misc/gsc_ps2.c:sent=3D90, rel=3D0
drivers/input/misc/gsc_ps2.c:rel=3D0 scancode=3D240, esc=3D0 <7>drivers/inp=
ut/misc/gsc_ps2.c:release
drivers/input/misc/gsc_ps2.c:rel=3D1 scancode=3D90, esc=3D0 <7>drivers/inpu=
t/misc/gsc_ps2.c:sent=3D90, rel=3D1
drivers/input/misc/gsc_ps2.c:rel=3D0 scancode=3D119, esc=3D0 <7>drivers/inp=
ut/misc/gsc_ps2.c:sent=3D119, rel=3D0
drivers/input/misc/gsc_ps2.c:Calling gscps2_hpkeyb_event, type=3D17, code=
=3D0, value=3D1
drivers/input/misc/gsc_ps2.c:rel=3D0 scancode=3D250, esc=3D0 <7>drivers/inp=
ut/misc/gsc_ps2.c:ACK
drivers/input/misc/gsc_ps2.c:rel=3D0 scancode=3D250, esc=3D0 <7>drivers/inp=
ut/misc/gsc_ps2.c:ACK
drivers/input/misc/gsc_ps2.c:rel=3D0 scancode=3D250, esc=3D0 <7>drivers/inp=
ut/misc/gsc_ps2.c:ACK
drivers/input/misc/gsc_ps2.c:rel=3D0 scancode=3D250, esc=3D0 <7>drivers/inp=
ut/misc/gsc_ps2.c:ACK
gsckbd_leds: timeout


This is first having typed "startx" and then I pressed the numlock key
several times. However, the NumLock LED isn't switched on. Instead, the
whole keyboard is no longer responsive at all. Switching back to a VC
(shutting down X11 by mouse or remotely issueing a 'chvt 2') gives me
back control over my kbd...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

--S8hWgp6Wl+RBuNna
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.2 (GNU/Linux)

iD8DBQE/QSYfHb1edYOZ4bsRAi8mAJ9AsBOSJQ9EXqNkiPRuzmvemj1HawCffCvz
gp/Z0B3dReLJuvXFChwe5yY=
=Zhr1
-----END PGP SIGNATURE-----

--S8hWgp6Wl+RBuNna--


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From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [2.6.x] No less/greater/bar key at console nor with X11
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Hi:)

Along with the NumLock problem, my (german) keyboard doesn't any longer
respond to the less/greater/pipe key (located at the lower left of my
keyboard). Each time, these three lines are printed:

drivers/input/misc/gsc_ps2.c:rel=3D0 scancode=3D97, esc=3D0 <7>drivers/inpu=
t/misc/gsc_ps2.c:received unk nown scancode 97, escape 0.
drivers/input/misc/gsc_ps2.c:rel=3D0 scancode=3D240, esc=3D0 <7>drivers/inp=
ut/misc/gsc_ps2.c:release=20
drivers/input/misc/gsc_ps2.c:rel=3D1 scancode=3D97, esc=3D0 <7>drivers/inpu=
t/misc/gsc_ps2.c:received unknown scancode 97, escape 0.

97 gets mapped to KBD_UNKNOWN, 240 is KBD_RELEASE. However, I couldn't
figure out what I should place instead of KBD_UNKNOWN. Dublicating my
/etc/console/boottime.kmap.gz section for 86 (-> which is the correct
entry for any other i386 keyboard) to keycode 97 doesn't help, though...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

--k9n1VOENd6u0x2wl
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.2 (GNU/Linux)

iD8DBQE/QSzqHb1edYOZ4bsRAjdQAJ4wMp4eyhSVx8UJiXxAs5hhpqdkBQCcDbUZ
e5s3rHxPopR+V7wuzIZTmKg=
=6vMH
-----END PGP SIGNATURE-----

--k9n1VOENd6u0x2wl--


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Subject: [parisc-linux] Re: Apollo 9000 power problem
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Christoph,

I saw your recent note on power supply problems.  It looks like
my 735(730) has suffered a similar failure in the recent blackout.
The symptoms appear similar to what you described a a couple of
years ago.  On power up, leds flash for 100-200 ms and then all
go out.

Did you replace the failed capacitor?  Adding a resistor between
the +Vaux line and the current sense line to compensate for leakage
between the -12V line and the current sense line seems like a
bit of a hack.

Do you have docs for the supply?

Dave


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [PATCH] hppa libgcc-compat
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libc-alpha,

Seeing Lu's post about libgcc-compat reminded me that I should submit
our version.

We have been using this patch to fix the leaked __clz_tab symbol from
libgcc. Attached is the required additions to our Makefile, Dist, and
Versions.

This patch was produced by Randolph Chung, many thanks!

Cheers,
Carlos.
---
 sysdeps/hppa/Dist            |    1
 sysdeps/hppa/Makefile        |   11 +++++
 sysdeps/hppa/Versions        |    5 ++
 sysdeps/hppa/libgcc-compat.c |   43 +++++++++++++++++++++++
 4 files changed, 60 insertions(+)
---

2003-02-25  Randolph Chung  <tausq@debian.org>

	* sysdeps/hppa/Makefile: Include compat code in build.
	* sysdeps/hppa/libgcc-compat.c: New file.
	* sysdeps/hppa/Dist: Add libgcc-compat.c
	* sysdeps/hppa/Versions [GLIBC_2.2]: Add __clz_tab.

--- glibc-2.3.1/sysdeps/hppa/Makefile.orig	2003-02-25 22:21:14.000000000 -0800
+++ glibc-2.3.1/sysdeps/hppa/Makefile	2003-02-25 22:22:01.000000000 -0800
@@ -31,3 +31,14 @@
 dl-routines += dl-symaddr dl-fptr
 rtld-routines += dl-symaddr dl-fptr
 endif
+
+ifeq ($(subdir),csu)
+ifeq (yes,$(build-shared))
+# Compatibility
+ifeq (yes,$(have-protected))
+CPPFLAGS-libgcc-compat.c = -DHAVE_DOT_HIDDEN
+endif
+sysdep_routines += libgcc-compat
+shared-only-routines += libgcc-compat
+endif
+endif
--- glibc/sysdeps/hppa/libgcc-compat.c	2003-02-25 22:19:14.000000000 -0800
+++ glibc/sysdeps/hppa/libgcc-compat.c	2003-02-25 22:19:14.000000000 -0800
@@ -0,0 +1,43 @@
+/* pre-.hidden libgcc compatibility
+   Copyright (C) 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Randolph Chung
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+
+#include <stdint.h>
+#include <shlib-compat.h>
+
+#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_2_6)
+
+symbol_version (__clz_tab_internal, __clz_tab, GLIBC_2.2);
+
+typedef unsigned int UQItype  __attribute__ ((mode (QI)));
+
+const UQItype __clz_tab_internal[] =
+{
+  0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+  6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+  7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+  7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+  8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+  8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+  8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+  8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+};
+
+#endif
--- glibc-2.3.1/sysdeps/hppa/Dist.orig	2003-02-26 09:02:52.000000000 -0800
+++ glibc-2.3.1/sysdeps/hppa/Dist	2003-02-26 09:04:03.000000000 -0800
@@ -1,2 +1,3 @@
+libgcc-compat.c
 dl-symaddr.c
 dl-fptr.c
--- glibc-2.3.1/sysdeps/hppa/Versions.orig	2002-02-01 13:16:41.000000000 -0800
+++ glibc-2.3.1/sysdeps/hppa/Versions	2003-02-27 13:23:03.000000000 -0800
@@ -5,3 +5,8 @@
     _dl_function_address;
   }
 }
+libc {
+  GLIBC_2.2 {
+    __clz_tab;
+  }
+}


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һȺ˼û˹ɡҪҵ 	
1	ƽƣһʴƷӡ
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Email: anlinwei@vip.sina.com          http://gzcj.blogone.net/
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ҲҪѡ

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Email: anlinwei@vip.sina.com          http://gzcj.blogone.net/
ַɽô԰9E



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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: xchat colors (Was Re:  [parisc-linux] xfree86 4.2.1-9 build problem)
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On Sat, Aug 16, 2003 at 11:18:50AM -0400, Chuck Slivkoff wrote:
> If you can accept the "off" colors that 
> an 8-bit TrueColor default visual would give you (due to the uneven 
> 3/3/2 split between R/G/B), that would be the easiest solution & would 
> ensure that all clients can get the colors they want.

Chuck, thanks again!

I can live with off colors since this seems to work.
(thanks again Alan too)

I'll submit a patch to xchat so at least it checks the
gdk return values and complains if it can't get the colors.

thanks,
grant


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From: "Joel Soete" <jsoe0708@tiscali.be>
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But for some minutes only :(

Hi pa,

With the hope to trap a HPMC during the boot of the N (dual processor) I
added some printk() in traps.c, smp.c, mm/memory.c as follow:

        case  1:
                /* High-priority machine check (HPMC) */
                printk("HPMC (case %d) from %s.\n", code, __FUNCTION__);
                pdc_console_restart();  /* switch back to pdc if HPMC */

[...]
        case  5:
                /* Low-priority machine check */

                printk("LPMC (case %d) from %s.\n", code, __FUNCTION__);
                pdc_chassis_send_status(PDC_CHASSIS_DIRECT_LPMC);
[...]

        case  6:
                /* Instruction TLB miss fault/Instruction page fault */
                printk("Instruction TLB miss fault/Instruction page fault
(case %d) from %s.\n", code, __FUNCTION__);
                fault_address = regs->iaoq[0];
[...]
         case 15:
                /* Data TLB miss fault/Data page fault */
                /* Fall thru */
                printk("Data TLB miss fault/Data page fault (case %d) from
%s.\n", code, __FUNCTION__);
                goto LBLJSO1;
        case 16:
                /* Non-access instruction TLB miss fault */
                /* The instruction TLB entry needed for the target address
of the FIC
                   is absent, and hardware can't find it, so we get to cleanup
*/
                /* Fall thru */
                printk("Non-access instruction TLB miss fault (case %d) from
%s.\n", code, __FUNCTION__);
                goto LBLJSO1;
        case 17:
                /* Non-access data TLB miss fault/Non-access data page fault
*/
                /* TODO: Still need to add slow path emulation code here
*/
                /* TODO: Understand what is meant by the TODO listed
                   above this one. (Carlos) */
                printk("Non-access data TLB miss fault/Non-access data page
fault (case %d) from %s.\n", code, __FUNCTION__);
        LBLJSO1:
                fault_address = regs->ior;
                fault_space = regs->isr;
                break;

smp.c

int
smp_call_function (void (*func) (void *info), void *info, int retry, int
wait)
{
[...]
        if (retry) {
                printk("Retry in %s.\n", __FUNCTION__);
                spin_lock (&lock);
                while (smp_call_function_data != 0)
                        barrier();
        }
        else {
                printk("Don't retry in %s.\n", __FUNCTION__);
                spin_lock (&lock);
                if (smp_call_function_data) {
                        spin_unlock (&lock);
                        return -EBUSY;
                }
        }
[...]

mm/memory.c
[...]
static int do_wp_page(struct mm_struct *mm, struct vm_area_struct * vma,
        unsigned long address, pte_t *page_table, pte_t pte)
{
 
[...]
        spin_unlock(&mm->page_table_lock);
        printk("Try page_cache_release(new_page) in %s.\n", __FUNCTION__);
        page_cache_release(new_page);
        printk("Try page_cache_release(old_page) in %s.\n", __FUNCTION__);
        page_cache_release(old_page);
        return 1;       /* Minor fault */

bad_wp_page:
[...]
no_mem:
        printk("Try page_cache_release(old_page) in %s (because no_mem).\n",
__FUNCTION__);
[...]


And start to grab:
[...]
IP Protocols: ICMP, UDP, TCP, IGMP
Retry in smp_call_function.
Retry in smp_call_function.
IP: routing cache hash table of 8192 buckets, 128Kbytes
Retry in smp_call_function.
Retry in smp_call_function.
Retry in smp_call_function.
Retry in smp_call_function.
Retry in smp_call_function.
TCP: Hash tables configured (established 131072 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mount
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************

========
That is here where I would expect:

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
bootlogd.

^G************* SYSTEM ALERT **************
SYSTEM NAME: ap8002
DATE: 08/11/2003 TIME: 12:56:05
ALERT LEVEL: 7 = reserved

and eventually HPMC message but it continu ...
========

(case 6) from handle_interruption.
Data TLB miss fault/Data page fault (case 15) from handle_interruption.
Instruction TLB miss fault/Instruction page fault (case 6) from handle_interru
ption.
Instruction TLB miss fault/Instruction page fault (case 6) from handle_interru
ption.
Instruction TLB miss fault/Instruction page fault (case 6) from handle_interru
ption.
Instruction TLB miss fault/Instruction page fault (case 6) from handle_interru
ption.
Instruction TLB miss fault/Instruction page fault (case 6) from handle_interru
ption.
Data TLB miss fault/Data page fault (case 15) from handle_interruption.
Instruction TLB miss fault/Instruction page fault (case 6) from handle_interru
ption.
Instruction TLB miss fault/Instruction page fault (case 6) from handle_interru
ption.
Instruction TLB miss fault/Instruction page fault (case 6) from handle_interru
ption.
Instruction TLB miss fault/Instruction page fault (case 6) from handle_interru
ption.
Data TLB miss fault/Data page fault (case 15) from handle_interruption.
[...]
Data TLB miss fault/Data page fault (case 15) from handle_interruption.
Data TLB miss fault/Data page fault (case 15) from handle_interruption.
Try page_cache_release(new_page) in do_wp_page.
Try page_cache_release(old_page) in do_wp_page.
Data TLB miss fault/Data page fault (case 15) from handle_interruption.
[...]

and thousand of messages of this type since I trap:
[...]
Data TLB palx4000miss login:...

What a surprise???

Well as there is too much messages at the console I came back to my desk
and login the system via ssh and got:

palx4000:/proc# cat cpuinfo 
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8600 (PCX-W+)
cpu MHz         : 550.000000
model           : 9000/800/N4000-55
model name      : Unknown machine
hversion        : 0x00005d30
sversion        : 0x00000491
I-cache         : 512 KB
D-cache         : 1024 KB (WB)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
bogomips        : 1097.72
software id     : 664309341

processor       : 1
cpu family      : PA-RISC 2.0
cpu             : PA8600 (PCX-W+)
cpu MHz         : 550.000000
model           : 9000/800/N4000-55
model name      : Unknown machine
hversion        : 0x00005d30
sversion        : 0x00000491
I-cache         : 512 KB
D-cache         : 1024 KB (WB)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
bogomips        : 1097.72
software id     : 664309341


I so go back to the system to recover my laptop grabing console logs (via
the lan console) and when I lost there was still thousand of messages flushing
on the serial console.

Back to my desk (about 10 minutes later) the system was unfortunaltely down.
The screen console was just black. After a requested reset of GSP I could
just read some messages as above but no HPMC (I know that couldn't be significant)
and I have no other system to let connected until crash :( and have no more
time to collect PIM right now :(( 

Any idea?

Thanks in advance,
    Joel

PS:
Q1: I never grab 'Freeing  unused kernel memory:...' during this test?

Q2: into cpuinfo (here above) I read:
...
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
...
is it right that DTLB is shared with ITLB?

-------------------------------------------------------------------------
Tiscali ADSL, seulement 35 eur/mois et le modem est inclus...abonnez-vous!
http://reg.tiscali.be/default.asp?lg=fr 




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On Mon, 4 Aug 2003 14:37:13 +0400
"Lev Assinovsky" <LAssinovsky@algorithm.aelita.com> wrote:

> Hello all!
> I badly need pa-risc 1.1 instruction sequence suitable for gdb.
> I would like to implement "hard breakpoint". 
> I tried "BREAK 4,8" - gdb stops but can't continue.
> Any help will be appreciated!
> 

We've looked into this already, and as far as we could find out, there is
no hardware support for hardware breakpoints on parisc.
They'd have to be emulated.

You can take a look at what we did for kgdb by checking this page:
http://pateam.esiee.fr/kgdb.html

Anyway, as far as i know, gdb isn't really supported for hppa.

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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Xref: news.gmane.org gmane.linux.ports.parisc:19257

What is BREAK instruction for?

----
Lev Assinovsky
Aelita Software Corporation
O&S Core Division, Programmer
ICQ# 165072909


> -----Original Message-----
> From: Thibaut VARENE [mailto:varenet@esiee.fr]
> Sent: Tuesday, August 19, 2003 2:29 PM
> To: Lev Assinovsky
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Help: Need instruction sequence for gdb
> breakpoint
>=20
>=20
> On Mon, 4 Aug 2003 14:37:13 +0400
> "Lev Assinovsky" <LAssinovsky@algorithm.aelita.com> wrote:
>=20
> > Hello all!
> > I badly need pa-risc 1.1 instruction sequence suitable for gdb.
> > I would like to implement "hard breakpoint".=20
> > I tried "BREAK 4,8" - gdb stops but can't continue.
> > Any help will be appreciated!
> >=20
>=20
> We've looked into this already, and as far as we could find=20
> out, there is
> no hardware support for hardware breakpoints on parisc.
> They'd have to be emulated.
>=20
> You can take a look at what we did for kgdb by checking this page:
> http://pateam.esiee.fr/kgdb.html
>=20
> Anyway, as far as i know, gdb isn't really supported for hppa.
>=20
> HTH,
>=20
>=20
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://pateam.esiee.fr/
>=20


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Xref: news.gmane.org gmane.linux.ports.parisc:19258

Ok! But what's BREAK instruction for?
Besides gdb works for me on HPUX 11.00

----
Lev Assinovsky
Aelita Software Corporation
O&S Core Division, Programmer
ICQ# 165072909


> -----Original Message-----
> From: Thibaut VARENE [mailto:varenet@esiee.fr]
> Sent: Tuesday, August 19, 2003 2:29 PM
> To: Lev Assinovsky
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Help: Need instruction sequence for gdb
> breakpoint
>=20
>=20
> On Mon, 4 Aug 2003 14:37:13 +0400
> "Lev Assinovsky" <LAssinovsky@algorithm.aelita.com> wrote:
>=20
> > Hello all!
> > I badly need pa-risc 1.1 instruction sequence suitable for gdb.
> > I would like to implement "hard breakpoint".=20
> > I tried "BREAK 4,8" - gdb stops but can't continue.
> > Any help will be appreciated!
> >=20
>=20
> We've looked into this already, and as far as we could find=20
> out, there is
> no hardware support for hardware breakpoints on parisc.
> They'd have to be emulated.
>=20
> You can take a look at what we did for kgdb by checking this page:
> http://pateam.esiee.fr/kgdb.html
>=20
> Anyway, as far as i know, gdb isn't really supported for hppa.
>=20
> HTH,
>=20
>=20
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://pateam.esiee.fr/
>=20


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Subject: [parisc-linux] itlb miss handler optimizations!
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>On Thu, Aug 14, 2003 at 08:02:04AM +0200, Joel Soete wrote:
>> btw is it for that reason (interlock) that in your patch we can read:
>> [...]
>>         cmpb,=        %r0,t0,itlb_miss_...
>>         nop
>> [...]
>> I am alway asking why the 'nop'.
>
>To fill the delayed branch slot (a silly idea, but ...)

Would it be the same 'by setting the "nullify" bit' (ie cmpb,=,n ...)

Joel




-------------------------------------------------------------------------
Tiscali ADSL, seulement 35 eur/mois et le modem est inclus...abonnez-vous!
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On Tue, Aug 19, 2003 at 02:33:04PM +0200, Joel Soete wrote:
> >On Thu, Aug 14, 2003 at 08:02:04AM +0200, Joel Soete wrote:
> >> btw is it for that reason (interlock) that in your patch we can read:
> >> [...]
> >>         cmpb,=        %r0,t0,itlb_miss_...
> >>         nop
> >> [...]
> >> I am alway asking why the 'nop'.
> >
> >To fill the delayed branch slot (a silly idea, but ...)
> 
> Would it be the same 'by setting the "nullify" bit' (ie cmpb,=,n ...)

Only if you know which direction the branch is going.  See the cmpb
description.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Tue, Aug 19, 2003 at 11:39:18AM +0200, Joel Soete wrote:
> Q2: into cpuinfo (here above) I read:
> ...
> ITLB entries    : 160
> DTLB entries    : 160 - shared with ITLB
> ...
> is it right that DTLB is shared with ITLB?

Yes, that's how the PA8500 and 8600 work, at least.  We're merely
reporting how PDC tells us the processor works, not programming it
ourselves.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Help: Need instruction sequence for gdb breakpoint
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On Tue, Aug 19, 2003 at 02:47:47PM +0400, Lev Assinovsky wrote:
> Ok! But what's BREAK instruction for?

To force a trap into the kernel. That's not the same
as HW support since using break requires modifying the code stream
(remembering which instruction belonged there), flushing data-cache,
flush ins-cache, an dtrying to continue. The break's are fully
under SW control.

> Besides gdb works for me on HPUX 11.00

That's because HP has (had?) a team of folks working on the
"open source toolkit". parisc-linux hasn't been so lucky.
Alan Modra, Richard Hirst, Randolph Chung and a few others get gdb
working from time to time. But there is no dedicated maintainer
and that's what is needed.

grant


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Subject: [parisc-linux] New price list for mp3 player, digital camera, cd/vcd/mp3 player and
 USB flash drive!
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Frank Ho
General Manager
HY Technology (Hong Kong) Company Ltd.


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From: "HY Tech" <technology_hy@sina.com>
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Subject: [parisc-linux] New price list for mp3 player, digital camera, cd/vcd/mp3 player and
 USB flash drive!
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Dear valued customer,

We are a professional manufacturer of mp3 player, cd/vcd/mp3 player, digital camera and USB 
flash drive in Shenzhen, China.

Please see the price of some products:
mp3 player with digital recorder and USB flash drive
64M 39USD      128M   52USD

cd/vcd/mp3 player (3 function in 1)
21.5USD

digital camera
300K pixels  15.5USD      1.3M pixels    24USD

USB flash drive
64M  17.9USD       128M  29.9USD      256M  54.9USD     

If you have interest, please contacut us and we will give you the detailed catalogue and price 
list. 

We always try our best to attract our clients with unbeatable prices and quality. Our goal is 
to treat every client the same as the most potential business partner.So however the client is 
big or small,we offer the best service. 

Any question, please contact me at any time.
 
Have a nice day!

Best Regards,

Frank Ho
General Manager
HY Technology (Hong Kong) Company Ltd.


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [parisc-linux-cvs] linux carlos
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On Wed, Aug 20, 2003 at 01:29:19PM -0600, Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux
> Changes by:	carlos	03/08/20 13:29:19
> 
> Modified files:
> 	arch/parisc/kernel: entry.S 
> 
> Log message:
> itlb_fault optmizaztion

Lamont made a good catch and we optimized the standard case in the itlb
fault fast path, keeping the CPU's forward branch prediction working in
our favour. As such our numbers for various syscalls (LMBENCH tests)
have become more stable from call to call. The best number is our 'page
fault' which has shown a ~10x speedup :) It used to be 130 microseconds
+/- 100 microseconds, and is now consistently ~13 microseconds.

I ran 30 LMBENCH runs, 10 each for the following configurations:
1- ITLB Optimization
2- ITLB Optimization + Removal of a register interlock on the fast path
3- No ITLB Optimization

I've applied #2 to our CVS. Please tell me if anyone sees any breakage.
This runs fine on my C3K.

Cheers,
Carlos.

Index: entry.S
===================================================================
RCS file: /var/cvs/linux/arch/parisc/kernel/entry.S,v
retrieving revision 1.98
diff -u -p -r1.98 entry.S
--- entry.S	9 Dec 2002 06:09:08 -0000	1.98
+++ entry.S	12 Aug 2003 03:49:04 -0000
@@ -1469,8 +1469,7 @@ itlb_miss_20w:
 	mfctl           %cr25,ptp	/* load user pgd */
 
 	mfsp            %sr7,t0		/* Get current space */
-	or,*=           %r0,t0,%r0      /* If kernel, nullify following test */
-	cmpb,*<>,n      t0,spc,itlb_fault /* forward */
+	cmpb,<>,n	t0,spc,itlb_user_fault_20w /* forward */
 
 	/* First level page table lookup */
 
@@ -1535,8 +1534,7 @@ itlb_miss_11:
 	mfctl           %cr25,ptp	/* load user pgd */
 
 	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,itlb_fault /* forward */
+	cmpb,<>,n	t0,spc,itlb_user_fault_11 /* forward */
 
 	/* First level page table lookup */
 
@@ -1551,6 +1549,10 @@ itlb_miss_common_11:
 	sh2addl 	 t0,ptp,ptp
 	ldi		_PAGE_ACCESSED,t1
 	ldw		 0(ptp),pte
+
+	/* Running parallel, taken from below 'zdep0' */
+	zdep            spc,30,15,prot  /* create prot id from space */
+
 	bb,>=,n 	 pte,_PAGE_PRESENT_BIT,itlb_fault
 
 	/* Check whether the "accessed" bit was set, otherwise do so */
@@ -1559,7 +1561,7 @@ itlb_miss_common_11:
 	and,<>		t1,pte,%r0	/* test and nullify if already set */
 	stw		t0,0(ptp)	/* write back pte */
 
-	zdep            spc,30,15,prot  /* create prot id from space */
+	/* zdep0 moved back */
 	dep             pte,8,7,prot    /* add in prot bits from pte */
 
 	extru,=		pte,_PAGE_NO_CACHE_BIT,1,r0
@@ -1602,8 +1604,7 @@ itlb_miss_20:
 	mfctl           %cr25,ptp	/* load user pgd */
 
 	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,itlb_fault /* forward */
+	cmpb,<>,n	t0,spc,itlb_user_fault_20	/* forward */
 
 	/* First level page table lookup */
 
@@ -1882,6 +1883,37 @@ kernel_bad_space:
 dbit_fault:
 	b               intr_save
 	ldi             20,%r8
+
+/* The following three labels relate to an optimization in the itlb handler.
+   itlb_user_fault_20w:
+   itlb_user_fault_20:
+   itlb_user_fault_11:
+   We keep the CPU jumping fwd/bkwd in the common case, and the uncommon case
+   has the cmpb fail (no jump) and thus branch prediction failing. */
+
+#ifdef __LP64__
+itlb_user_fault_20w:
+	/* User tlb missed for other than his own space. Optimization. */
+	cmpb,=		%r0,t0,itlb_miss_common_20w /* backward */
+	nop
+#else
+itlb_user_fault_20:
+	/* User tlb missed for other than his own space. Optimization. */
+	cmpb,=		%r0,t0,itlb_miss_common_20 /* backward */
+	nop
+
+/* FALL THROUGH - We don't care if we run the test twice. If someone
+                  asks to have the "user is faulting death" path optimal
+                  then they should seek help. */
+
+itlb_user_fault_11:
+	/* User tlb missed for other than his own space. Optimization. */
+	cmpb,=		%r0,t0,itlb_miss_common_11 /* backward */
+	nop
+#endif
+
+/* FALL THROUGH - We have a real itlb_fault from one of the above three
+                  label sequences */
 
 itlb_fault:
 	b               intr_save


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] Re: xchat colors
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On Mon, Aug 18, 2003 at 11:08:29PM -0600, Grant Grundler wrote:
> I'll submit a patch to xchat so at least it checks the
> gdk return values and complains if it can't get the colors.

patch submitted to debian bug #200903.
IMHO a pathetic patch. If someone is looking for a very small
project, cleaning up xchat color handling would be a good thing.

I just realized that instead of xchat allocating it's own colors,
it might be nice to prompt the user to select from existing "default"
colors. And reduce the number of colors used overall by xchat.

grant


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From: "Joel Soete" <jsoe0708@tiscali.be>
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>Lamont made a good catch and we optimized the standard case in the itlb
>fault fast path, keeping the CPU's forward branch prediction working in
>our favour. 

That is the very fine state of the art :)

>As such our numbers for various syscalls (LMBENCH tests)
>have become more stable from call to call. The best number is our 'page
>fault' which has shown a ~10x speedup :) It used to be 130 microseconds
>+/- 100 microseconds, and is now consistently ~13 microseconds.

Congratulation, I will try it also on the N (64bits)

Thanks again,
    Joel


-------------------------------------------------------------------------
Tiscali ADSL, seulement 35 eur/mois et le modem est inclus...abonnez-vous!
http://reg.tiscali.be/default.asp?lg=fr 




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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] sym53c8xx_2 development
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Hi.  I've got some changes for the sym53c8xx_2 driver I'm working on.
Does anyone object to me working on them in the parisc 2.6 tree?
Obviously, I'll do my best to not break anything and I'll handle any
merge problems.

We've done this kind of thing before (eg with the pcnet32 driver in 2.4)
but since every PCI-based parisc box uses sym53c8xx_2 for its scsi,
I didn't feel it was appropriate to inflict potentially-buggy changes
on everyone without a little bit of discussion.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hello,

of course it is a "hack", but it is a constructive one, not
a bad thing like disconnecting the suppervision or so ...

I have replaced some of the capacitors, but it was not so simple
to detect the one, which has lost a bit of it's fluid ...

The problem is relly the layer of this chemicals of the capacitor and
the dust mixture, which generates the lack current. (I really have
problems to explain this all in English here ....)

I was not my thing to take the power supply out and hold it under
the water to clean, so I tried it with clothes, etc, but - as I
mentioned already in the last mail - some weeks later the problem
occured again. New dust on this checimal stuff .... (or new chemical
stuff ??? ...)

This SIMM-like suppervison thing checks six itmes on the power
supply (the other 6 comperators are use to generate the RESET
signal in case of "power good").

One measures the current. If the input of the comperator increases
2.35V (comming from meassure transformer meassuring the current
of some secondary linesm e.g. 5V, 12V...), then the protection
stops the power supply (the stop is done per thyristor, so one
short "stop" signal hold the power supply down until POFF/PON,
then the cycle starts again).

In idle operation (my test setup was a 10 Ohm + LED to see,
if the power is stable while repairing it), the voltage of
the current transformers is near 0V. All current transformers
have an own diode to one line. So if the output voltage of
the current transformes is lower the e.g. 0.6V (voltage of
the diode), behind the diodes the line has high impedance.
So the very low lack current of the near -12V line can drop
this line easy. If the voltage drops below 0V, the comperator
does not work correctly and asserts the "stop" (although
e.g. -0.5V is below 2.35, which should be OK !).

If there is an over current, there is a voltage on the output
side of the current transformer, and a representative voltage
is on the other side of the diode. This will pull up the the
line up to some voltage (higher than 2.35 leads to the stop ..).

So the 220KOhm resisitor only pulls the high impedance sense
line up against the "dust" resistor. But both "resistors" have
a high value against the output of the over current transformers,
if a big current is comming up.

So this "hack" is acceptable for me.
It was not acceptable for me, to  short-cut or isolate the
over-current protection (I did this for one day for tests, but
I could not live with this feeling, not having this important
protection.

And see the alternative. A new powersupply of this type costs
about 1000 EURO, an "fresh repaied" about 300EURO, an old one
- perhaps having the same problem soon - costs about 150EURO ...

So I am happy to have a correct working power supply with a
full functioning protection and a "well defined" hack !

Ok, I cannot take any warranty for others ..., but I thought,
I know what I am doing.

Further questions are welcome.

Christoph P.





John David Anglin wrote:
> Christoph,
> 
> I saw your recent note on power supply problems.  It looks like
> my 735(730) has suffered a similar failure in the recent blackout.
> The symptoms appear similar to what you described a a couple of
> years ago.  On power up, leds flash for 100-200 ms and then all
> go out.
> 
> Did you replace the failed capacitor?  Adding a resistor between
> the +Vaux line and the current sense line to compensate for leakage
> between the -12V line and the current sense line seems like a
> bit of a hack.
> 
> Do you have docs for the supply?
> 
> Dave
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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Subject: [parisc-linux] [Fwd: Re: Apollo 9000 power problem]
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So for all in the PARISC group !

I sent this file to MR. Gabert last week.

Here some INPORTANT points:

- I take no warranty in all cases !
- You do the repair on your own risk (for me it was a good solution)
- Check the type of the power supply
	My was a ASTEC Model BM200-3601

- Have fun on testing ...


Bye
Christoph P.


-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at

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>From - Thu Aug 14 00:14:28 2003
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To: Alexander Gabert <pappy@nikita.ath.cx>
Subject: Re: Apollo 9000 power problem
References: <3F32CB8C.9060407@gmx.at> <20030807220208.GA31556@nikita.ath.cx> <3F32CE0B.30902@gmx.at> <20030807223043.GA3631@nikita.ath.cx>
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Hello,
so here the thing you have to do to repair ...

... but before some words:

	- 1 -  I take no warranty to nothing - the hack works for
		well, you can try it.

	- 2 -  My power supply so of the type ASTEC Model BM200-3601
		check the label on the power-supply not to hack around
		on the wrong thing !!

Pull out the power-supply an disconnect the power. Wait for one minute
to have unloaded the capacitors in it after unplugging it from supply.

Unscrew and open power supply. Take out the main board of the supply.
4 Screws have to be opened:


    +----------------------------------------------------------+--
    | O                                                      O |
    |                                                          |
    |                                                          |
    +--+                                                       |low
    |  |                         O                             |voltage
    |  |                                                       |side
    +--+                                                       |
    |                                                        O |
    +----------------------------------------------------------+--	

Remeber the screws, 2 of them do a GROUND connection (the upper 2
on my figure above).

After having the board in the hand, turn around, we only have to
work on the bottom side (soldering side).

The fix has to be done on the low voltage side near the 60-pin
connector. Beside the 60-pin connector, there is this SIMM-like
module, the supervision module. Exactly on the solder side of this
module (bottom side of supply main board) we have to solder on
this resistor.

                         SIMM-like Module on other side
                        /
    ----------------+  /
                    | v	           BOTTOM VIEW !!!
                    +--------------+
                        o     O    |
                        o          |
                  /->O             |
                 /   O             |
                /    O        o   o|  60-pin conector
                |    O   o    o   o| <-----
                |           o o   o|
                |             o   o|
               +-+   O      o o   o|
           220K| |   O      o o   o|
               | |   O        o   o|
               +-+   O      o o   o|
                |    O        o   o|
                |    O        o   o|
                \    O      o o   o|
                 \-->O        o   o|
                     O      o o   o|
                     O        o   o|
                              o   o|
                              o   o|
                              o   o|
                              o   o|
                              o   o|
                            o o   o|
                              o   o|
                            o o   o|
                              o   o|
                     O        o   o|

                            etc ...


Simple solder on this Resistor (220kOhms works for me) between pin-1 and
pin-12 of the SIMM-like module.

Reassemble the powersuplly and it should work !!

BTW: I use something like "Schrumpfschlauch" (the english word ?) on
both connections of the resistor not to have contact to other pins or
the metallic case !!

Good luck,
Christoph.








Alexander Gabert wrote:
> hi,
> 
> i live in Bavaria, Germany, about 1 hour to salzburg...
> and another 2-3 hours to vienna.
> and i would really bring you some good wine or beer if we could do that
> together caus i have really two left hands when it comes to soldering
> around on power supplies :-)
> 
> bye,
> 
> Alex
> 
> On Fri, Aug 08, 2003 at 12:09:15AM +0200, Christoph Plattner wrote:
> 
>>Where do ylu live, what is "cx" ?
>>
>>I live in Vienna !
>>
>>But I do not think it is necessary, that you come.
>>I can make you a small graohic in the mail, where to solder
>>this only one resistor, and which value it should have ...
>>
>>Further it is very simple to open the power supply -
>>but please disconnect the power, I am not responsible for you ...
>>
>>Some minutes ago, I switched on my Apollo, it was for many
>>months now, and it booted up without any problem ....
>>
>>If you are interested, I send you this tomorrow, now is is late
>>to pull out the supply and open it ...
>>
>>Bye
>>Christoph
>>
>>
>>
>>
>>
>>Alexander Gabert wrote:
>>
>>>hi,
>>>
>>>where in austria do you live?
>>>
>>>could i visit you with one of my broken power supplies and bring some
>>>beer for you to repair it for me?
>>>
>>>TIA,
>>>
>>>Alex
>>>
>>>On Thu, Aug 07, 2003 at 11:58:36PM +0200, Christoph Plattner wrote:
>>>
>>>
>>>>Hello HP Hackers !
>>>>
>>>>I have a work around for the POWER SUPPLY Problem.
>>>>
>>>>Using schematics and analysing this very very hard thing,
>>>>I found out, that the problem we all have was created
>>>>by an exploded capacitor.
>>>>
>>>>The thing running out of the capacitor mixed with the dust
>>>>in the machine generates an resistor on the PCB board.
>>>>
>>>>On the low voltage end of the power supply (near front),
>>>>ther is a small SIM-like module which does the supervision of
>>>>all volatage lines (plus over current protection) and which
>>>>generates the reset impuls.
>>>>
>>>>Now to the problem. The line coming from the current measure
>>>>transformer is the neighbour line of the -12V line. Because
>>>>of the electrical resistor because of the dust, etc, the
>>>>negative voltage comes to the current supervision line, and
>>>>therefore one supervision comperator does a wrong failure
>>>>reaction !
>>>>
>>>>Workaround:
>>>>
>>>>- step 1 -
>>>>Try to clean the space on the PCB around this supervison module.
>>>>(I soldered it out for cleaning, a resoldered it in)..
>>>>
>>>>- step 2 -
>>>>This helps. But after weeks the problem returned again ....
>>>>I soldered in a resistor between the +Vaux (about 12..16V)
>>>>and this current measure line to compensate this negativ
>>>>voltage of the -12V line.
>>>>This is no relevant impact to the over-current protection,
>>>>as the resistor has a high value against the measurement
>>>>output.
>>>>
>>>>This worked for me.
>>>>If you need help on this, please contact me ...
>>>>
>>>>Christoph
>>>>
>>>>
>>>>
>>>>
>>>>-- 
>>>>-------------------------------------------------------
>>>>private:	christoph.plattner@gmx.at
>>>>company:	christoph.plattner@alcatel.at
>>>>
>>>
>>>
>>
>>
>>-- 
>>-------------------------------------------------------
>>private:	christoph.plattner@gmx.at
>>company:	christoph.plattner@alcatel.at
>>
> 
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


--------------070102000107000003020209--



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Subject: [parisc-linux] [glibc] fixing delayed exceptions in hppa
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parisc-linux,

Just a quick RFC on this patch. I've generated a register interlock on
the previous exception raising result register. This _should_ cause delayed
exceptions to be flushed immediately on all processors.

Under my C3K testsetup it fixes the test-fenv failure that was
specifically related to "child raises exception, exception comes in late
and kills parent after child called join."

Comments more than welcome, I'll be submitting this upstream if nobody
has any quibles with my gcc asm :)

c.

--- libc/sysdeps/hppa/fpu/fraiseexcpt.c	10 Sep 2002 01:26:37 -0000	1.4
+++ libc/sysdeps/hppa/fpu/fraiseexcpt.c	19 Aug 2003 18:52:33 -0000
@@ -25,6 +25,8 @@
 int
 feraiseexcept (int excepts)
 {
+  /* Used in the trap barrier */
+	double dummy;
   /* Raise exceptions represented by EXCEPTS.  But we must raise only one
      signal at a time.  It is important that if the overflow/underflow
      exception and the divide by zero exception are given at the same
@@ -42,17 +44,17 @@ feraiseexcept (int excepts)
     {
       /* One example of a invalid operation is 0 * Infinity.  */
       double d = HUGE_VAL;
-      __asm__ __volatile__ ("fmpy,dbl %1,%%fr0,%0\n\t"
+      __asm__ __volatile__ ("fmpy,dbl %2,%%fr0,%0\n\t"
 			    /* FIXME: is this a proper trap barrier? */
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d));
+			    "fcpy,dbl %0,%1" : "=f" (d), "=f" (dummy) : "0" (d));
     }
 
   /* Next: division by zero.  */
   if (excepts & FE_DIVBYZERO)
     {
       double d = 1.0;
-      __asm__ __volatile__ ("fdiv,dbl %1,%%fr0,%0\n\t"
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d));
+      __asm__ __volatile__ ("fdiv,dbl %2,%%fr0,%0\n\t"
+			    "fcpy,dbl %2,%1" : "=f" (d), "=f" (dummy) : "0" (d));
     }
 
   /* Next: overflow.  */
@@ -61,8 +63,8 @@ feraiseexcept (int excepts)
     {
       double d = DBL_MAX;
 
-      __asm__ __volatile__ ("fmpy,dbl %1,%1,%0\n\t"
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d));
+      __asm__ __volatile__ ("fmpy,dbl %2,%2,%0\n\t"
+			    "fcpy,dbl %2,%1" : "=f" (d), "=f" (dummy) : "0" (d));
     }
 
   /* Next: underflow.  */
@@ -71,8 +73,8 @@ feraiseexcept (int excepts)
       double d = DBL_MIN;
       double e = 69.69;
 
-      __asm__ __volatile__ ("fdiv,dbl %1,%2,%0\n\t"
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d), "f" (e));
+      __asm__ __volatile__ ("fdiv,dbl %2,%3,%0\n\t"
+			    "fcpy,dbl %2,%1" : "=f" (d), "=f" (dummy) : "0" (d), "f" (e));
     }
 
   /* Last: inexact.  */
@@ -81,8 +83,8 @@ feraiseexcept (int excepts)
       double d = 1.0;
       double e = M_PI;
 
-      __asm__ __volatile__ ("fdiv,dbl %1,%2,%0\n\t"
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d), "f" (e));
+      __asm__ __volatile__ ("fdiv,dbl %2,%3,%0\n\t"
+			    "fcpy,dbl %2,%1" : "=f" (d), "=f" (dummy) : "0" (d), "f" (e));
     }
 
   /* Success.  */


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Subject: Re: [parisc-linux] [glibc] fixing delayed exceptions in hppa
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On Thu, Aug 21, 2003 at 09:39:31PM -0400, Carlos O'Donell wrote:
> Just a quick RFC on this patch. I've generated a register interlock on
> the previous exception raising result register. This _should_ cause delayed
> exceptions to be flushed immediately on all processors.
> 
> Under my C3K testsetup it fixes the test-fenv failure that was
> specifically related to "child raises exception, exception comes in late
> and kills parent after child called join."

Yay.

> Comments more than welcome, I'll be submitting this upstream if nobody
> has any quibles with my gcc asm :)

I can quibble!

>        /* One example of a invalid operation is 0 * Infinity.  */
>        double d = HUGE_VAL;
> -      __asm__ __volatile__ ("fmpy,dbl %1,%%fr0,%0\n\t"
> +      __asm__ __volatile__ ("fmpy,dbl %2,%%fr0,%0\n\t"
>  			    /* FIXME: is this a proper trap barrier? */
> -			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d));
> +			    "fcpy,dbl %0,%1" : "=f" (d), "=f" (dummy) : "0" (d));
>      }

Surely this, and all the others, would be clearer written as:

	__asm__ __volatile__ (
		"	fmpy,dbl %0,%%fr0,%0\n"
		"	fcpy,dbl %0,%1\n"
		: "+f" (d), "=f" (dummy));

ie turn the \t into a literal tab, and use the "+" syntax rather than the
"=" and "0" syntax.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] Re: [glibc] fixing delayed exceptions in hppa
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> Comments more than welcome, I'll be submitting this upstream if nobody
> has any quibles with my gcc asm :)

See <http://lists.parisc-linux.org/hypermail/parisc-linux/10549.html>.

Dave


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From: PETE NDLOVU <petendlovu@netscape.net>
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Subject: [parisc-linux] HELP ME
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This is a multi-part message in MIME format
--9372fd29-284b-4240-ab71-ef5518d90a3a
Content-Type: text/plain; charset=iso-8859-1
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Dear Sir,
Difficulties encountered in efforts to establish a business abroad 
necessitate
this search for someone to assist me in securing and investing the sum of
USD7.5 Million (Seven  million five hundred thousand  dollars)inherited from =
my father's 
business
reserve.
I am the heir of a Zimbabwean family; my father was an agriculturist. He 
became
rich from his old-aged investment in agriculture and later was victimized by
President Robert Mugabe's land reform policy. He was assassinated by unknown
gunmen for defending his land ownership and siding the minority white 
farmers.
Before his death, my father foresaw the insecurity of both our lives and
property then decided to deposit the above sum with a private finance and
security firm in Europe. This money has become the only inherited property 
of
our family since our home was burnt,and the farmlands and machines seized; 
yet
the government and it's loyalists are bent on making life difficult for us.
To summarise this traumatic story, my mother and I have decided to offer 15% 
=

of
the above sum to anyone who assists us to secure this funds overseas or 25%
share for possible help on investing in any reliable venture.
There are however some minimal cost involved in securing the release of this
deposit from the present holding company.i do not intend to overburden you 
with
these cost.but you must know beforehand that we will be sharing whatever 
cost
involved in retrieving this deposit and putting it to beneficial use.
if you would want to proceed under these terms,please reply for detailed
information. if you do not accept my offer,please in good fate treat with 
utmost
confidentiality . A quick reply with your name,telephone and fax numbers to
for more confidential communication will be highly appreciated.
Sincerely yours,
Pete Ndlovu  
--9372fd29-284b-4240-ab71-ef5518d90a3a--



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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Problems with kernel mmap (failing tst-mmap-eofsync in glibc on
 parisc)
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--=-lmHKO1hPltD8R1GkCOtr
Content-Type: text/plain
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This test essentially opens a file (via open(2)), writes something,
opens it via a mmaped file object *read only* (via fopen(...,"rm)) reads
what was writtent, writes some more and reads it via the mmaped file
object.

This last read fails to get the data on parisc.  The problem is that our
CPU cache is virtually indexed, and the page the write is storing the
data to (in the buffer cache) and the page it is mmapped to have the
same physical, but different virtual addresses.  We need the write() to
trigger a cache update via flush_dcache_page to get the virtually
indexed cache in sync.

The reason this doesn't happen is because the mapping is not on the
mmap_shared list that flush_dcache_page() updates.

And the reason it's not on the correct list is because there's a check
in mm/mmap.c:do_mmap_pgoff() that drops the VM_SHARED flag on the
mapping if the file wasn't opened for writing (about line 541).

Semantically, it seems that whether the mmaping sees a write or not on a
different descriptor shouldn't depend on whether the underlying file was
opened read only or read write, so I think the glibc test is correct,
and we should keep the VM_SHARED flag even if the underlying file was
opened read only.

The patch is attached (and makes the test pass on parisc).

Comments?

James


--=-lmHKO1hPltD8R1GkCOtr
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=3D=3D=3D=3D=3D mm/mmap.c 1.89 vs edited =3D=3D=3D=3D=3D
--- 1.89/mm/mmap.c	Thu Jul 10 21:46:52 2003
+++ edited/mm/mmap.c	Fri Aug 22 09:36:32 2003
@@ -539,7 +539,7 @@
=20
 			vm_flags |=3D VM_SHARED | VM_MAYSHARE;
 			if (!(file->f_mode & FMODE_WRITE))
-				vm_flags &=3D ~(VM_MAYWRITE | VM_SHARED);
+				vm_flags &=3D ~VM_MAYWRITE;
=20
 			/* fall through */
 		case MAP_PRIVATE:

--=-lmHKO1hPltD8R1GkCOtr--



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Re: [glibc] fixing delayed exceptions in hppa
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On Thu, Aug 21, 2003 at 11:04:44PM -0400, John David Anglin wrote:
> > Comments more than welcome, I'll be submitting this upstream if nobody
> > has any quibles with my gcc asm :)
> 
> See <http://lists.parisc-linux.org/hypermail/parisc-linux/10549.html>.

I took this into account, and the fcpy of a non fr0 is working better
than before precisely for the reasons you list your original email.

Should I instead spill the value into memory at dummy's address?

c.


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From: dann frazier <dannf@hp.com>
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Subject: [parisc-linux] Re: palo
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To: ??????? ??????? <almetoil@tatneft.ru>
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you have e-mailed the admin of the cvs list, which is part of the old bug
tracking system.
i've cc'd the parisc-linux list, which is probably the best place to ask.

On Fri, Aug 22, 2003 at 05:41:07PM +0400, ??????? ??????? wrote:
> ???????????? ?????????, cvs-admin.
> 
>   Please help me cvs download palo !
>   Please sorry my english
> 
>   I am use this and read error messges:
>     user@panda:~/palo$ cvs -d :pserver:guest@cvs.parisc-linux.org:/ checkout palo
>     cvs checkout: warning: failed to open /home/user/.cvspass for reading: No such file or directory
>     /: no such repository
>     user@panda:~/palo$ cvs -d :pserver:guest@cvs.parisc-linux.org:/cvs checkout palo
>     cvs checkout: warning: failed to open /home/user/.cvspass for reading: No such file or directory
>     /cvs: no such repository
>     user@panda:~/palo$ cvs -d :pserver:guest@cvs.parisc-linux.org:/Developmetn checkout palo
>     cvs checkout: warning: failed to open /home/user/.cvspass for reading: No such file or directory
>     /Developmetn: no such repository
>     user@panda:~/palo$ cvs -d :pserver:guest@parisc-linux.org:/cvs checkout palo
>     cvs checkout: warning: failed to open /home/user/.cvspass for reading: No such file or directory
>     /cvs: no such repository
>     user@panda:~/palo$ cvs -d :pserver:guest@parisc-linux.org:/cvs/Development checkout palo
>     cvs checkout: warning: failed to open /home/user/.cvspass for reading: No such file or directory
>     /cvs/Development: no such repository
>     user@panda:~/palo$ cvs -d :pserver:guest@parisc-linux.org:/cvs/ checkout Development/palo
>     cvs checkout: warning: failed to open /home/user/.cvspass for reading: No such file or directory
>     /cvs/: no such repository
>     user@panda:~/palo$ cvs -d :pserver:guest@parisc-linux.org:/cvs checkout Development/palo
>     cvs checkout: warning: failed to open /home/user/.cvspass for reading: No such file or directory
>     /cvs: no such repository
>     user@panda:~/palo$ cvs -d :pserver:guest@parisc-linux.org:/cvs checkout Development/palo
> 
>    I need setup Gentoo Linux by HP9000/811/D310 and have this message:
>      .
>      .
>      .
>      .
>      Information: No console specified on kernel command line. This is
>      normal.PALO will choose the console currently used by firmware
>      (serial).
>      .
>      .
>      .
>      .
>      .
>      If this is the last message you see, you may need to switch your console.
> 
>      I am reed this http://tldp.org/HOWTO/PA-RISC-Linux-Boot-HOWTO/index.html
> -- 
> ? ?????????,mailto:almetoil@tatneft.ru
> 
> ??????? 22 ??????? 2003 ?. ? 17:33:27.
> 

-- 
---------------------------
dann frazier
Hewlett-Packard
Linux and Open Source Lab
dannf@hp.com
(970) 898-0800


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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Re: palo
Date: Fri, 22 Aug 2003 09:16:59 -0700
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> >   Please help me cvs download palo !
> >   Please sorry my english
> > 
> >   I am use this and read error messges:
> >     user@panda:~/palo$ cvs -d :pserver:guest@cvs.parisc-linux.org:/ checkout palo
> >     cvs checkout: warning: failed to open /home/user/.cvspass for reading: No such file or directory

touch ~/.cvspass
then follow the directions at http://www.parisc-linux.org/faq/cvs.html
for anonymous CVS access.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] Re: Problems with kernel mmap (failing tst-mmap-eofsync in glibc on
 parisc)
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On 22 Aug 2003 09:40:37 -0500
James Bottomley <James.Bottomley@SteelEye.com> wrote:

> This test essentially opens a file (via open(2)), writes something,
> opens it via a mmaped file object *read only* (via fopen(...,"rm)) reads
> what was writtent, writes some more and reads it via the mmaped file
> object.
> 
> This last read fails to get the data on parisc.  The problem is that our
> CPU cache is virtually indexed, and the page the write is storing the
> data to (in the buffer cache) and the page it is mmapped to have the
> same physical, but different virtual addresses.  We need the write() to
> trigger a cache update via flush_dcache_page to get the virtually
> indexed cache in sync.
> 
> The reason this doesn't happen is because the mapping is not on the
> mmap_shared list that flush_dcache_page() updates.

flush_dcache_page() checks both the shared and non-shared mmap lists,
so if it is on _either_ list it is flushed.  It does not check only
the shared list.

The VM_SHARED change you are proposing is definitely wrong.


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Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing tst-mmap-eofsync in glibc on parisc)
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On Fri, Aug 22, 2003 at 09:14:47AM -0700, David S. Miller wrote:
> On 22 Aug 2003 09:40:37 -0500
> James Bottomley <James.Bottomley@SteelEye.com> wrote:
> > The reason this doesn't happen is because the mapping is not on the
> > mmap_shared list that flush_dcache_page() updates.
> 
> flush_dcache_page() checks both the shared and non-shared mmap lists,
> so if it is on _either_ list it is flushed.  It does not check only
> the shared list.

Gah, that's going to get really inefficient.  I still think we want to
split flush_dcache_page() into two operations -- flush_dcache_user() and
flush_dcache_kernel().  flush_dcache_user() would flush this specific
user mapping back to ram and flush_dcache_kernel() would flush the
kernel mapping.  Obviously we'd still want to have flush_dcache_page()
as there are instances when you want to flush all user mappings and the
kernel mapping back to ram.

> The VM_SHARED change you are proposing is definitely wrong.

Why is it wrong?  Why should whether-or-not a mapping is read-only affect
whether it's mapped shared?  I can't see anything in SuS v3 that suggests
we should do this.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing tst-mmap-eofsync in glibc on parisc)
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On Fri, Aug 22, 2003 at 05:34:29PM +0100, Matthew Wilcox wrote:
> On Fri, Aug 22, 2003 at 09:14:47AM -0700, David S. Miller wrote:
> > On 22 Aug 2003 09:40:37 -0500
> > James Bottomley <James.Bottomley@SteelEye.com> wrote:
> > > The reason this doesn't happen is because the mapping is not on the
> > > mmap_shared list that flush_dcache_page() updates.
> > 
> > flush_dcache_page() checks both the shared and non-shared mmap lists,
> > so if it is on _either_ list it is flushed.  It does not check only
> > the shared list.

Eww.

> Gah, that's going to get really inefficient.  I still think we want to
> split flush_dcache_page() into two operations -- flush_dcache_user() and
> flush_dcache_kernel().  flush_dcache_user() would flush this specific
> user mapping back to ram and flush_dcache_kernel() would flush the
> kernel mapping.

Where are you proposing calling only _user() and _kernel() from ?

-- 
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html



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Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing
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On Fri, 22 Aug 2003 17:34:29 +0100
Matthew Wilcox <willy@debian.org> wrote:

> On Fri, Aug 22, 2003 at 09:14:47AM -0700, David S. Miller wrote:
> > On 22 Aug 2003 09:40:37 -0500
> > flush_dcache_page() checks both the shared and non-shared mmap lists,
> > so if it is on _either_ list it is flushed.  It does not check only
> > the shared list.
> 
> Gah, that's going to get really inefficient.  I still think we want to
> split flush_dcache_page() into two operations -- flush_dcache_user() and
> flush_dcache_kernel().  flush_dcache_user() would flush this specific
> user mapping back to ram and flush_dcache_kernel() would flush the
> kernel mapping.  Obviously we'd still want to have flush_dcache_page()
> as there are instances when you want to flush all user mappings and the
> kernel mapping back to ram.

flush_dcache_page() works only on kernel pages.

It is defined to execute when the kernel executes store instructions
into a page.

Therefore splitting it into a "user" part makes absolutely no
sense.

> > The VM_SHARED change you are proposing is definitely wrong.
> 
> Why is it wrong?  Why should whether-or-not a mapping is read-only affect
> whether it's mapped shared?  I can't see anything in SuS v3 that suggests
> we should do this.

MAP_SHARED has no meaning if the mapping isn't writable.


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Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing
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On Fri, 22 Aug 2003 17:42:03 +0100
Russell King <rmk@arm.linux.org.uk> wrote:

> > Gah, that's going to get really inefficient.  I still think we want to
> > split flush_dcache_page() into two operations -- flush_dcache_user() and
> > flush_dcache_kernel().  flush_dcache_user() would flush this specific
> > user mapping back to ram and flush_dcache_kernel() would flush the
> > kernel mapping.
> 
> Where are you proposing calling only _user() and _kernel() from ?

The is not acceptable answer.

Purely, flush_dcache_page() is defined to execute when the
kernel stores into a page cache page, and that is it's only
valid definition.

Splitting into a "user" part makes absolutely no sense.


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On Fri, Aug 22, 2003 at 09:39:00AM -0700, David S. Miller wrote:
> flush_dcache_page() works only on kernel pages.
> 
> It is defined to execute when the kernel executes store instructions
> into a page.
> 
> Therefore splitting it into a "user" part makes absolutely no
> sense.

Uhm.  So what happens when the user has stored into the page and now
the kernel wants to read from it?  There's still data in the cache for
the user mapping that's non-coherent with the kernel mapping.

> > > The VM_SHARED change you are proposing is definitely wrong.
> > 
> > Why is it wrong?  Why should whether-or-not a mapping is read-only affect
> > whether it's mapped shared?  I can't see anything in SuS v3 that suggests
> > we should do this.
> 
> MAP_SHARED has no meaning if the mapping isn't writable.

Sure it does.  It affects whether other writes to that page show up in
the shared read-only mapping.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, 22 Aug 2003 18:41:03 +0100
Matthew Wilcox <willy@debian.org> wrote:

> Uhm.  So what happens when the user has stored into the page and now
> the kernel wants to read from it?  There's still data in the cache for
> the user mapping that's non-coherent with the kernel mapping.

I see.  This causes the page cache read flush_dcache_page() call
not to trigger.

I was very confused by the fact that this bug was explained by
saying that "the shared mmap list that flush_dcache_page() checks".

So the idea is that VM_SHARED should be set based upon whether
we mmap() the thing writable _not_ whether the open() was done
with write permission enabled.

Yes, I agree with that.


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On Fri, 22 Aug 2003 10:36:34 -0700
"David S. Miller" <davem@redhat.com> wrote:

> On Fri, 22 Aug 2003 18:41:03 +0100
> Matthew Wilcox <willy@debian.org> wrote:
> 
> > Uhm.  So what happens when the user has stored into the page and now
> > the kernel wants to read from it?  There's still data in the cache for
> > the user mapping that's non-coherent with the kernel mapping.
> 
> I see.  This causes the page cache read flush_dcache_page() call
> not to trigger.

Wait, I'm confused again.

How can the user "write" to the mmap()'d side if PROT_WRITE
was not specified?  That is the only case in which the proposed
patch could make a difference, we check this:

	switch (flags & MAP_TYPE) {
		case MAP_SHARED:
			if ((prot&PROT_WRITE) && !(file->f_mode&FMODE_WRITE))
				return -EACCES;

Therefore if the user can write to the page, file->f_mode will
have the write bit set too.

So the proposed patch looks bogus to me.


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Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing tst-mmap-eofsync
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On Fri, 22 Aug 2003, David S. Miller wrote:
> 
> So the proposed patch looks bogus to me.

And to me.  If VM_SHARED is set, then __vma_link_file puts the vma on
on i_mmap_shared.  If VM_SHARED is not set, it puts the vma on i_mmap.
flush_dcache_page treats i_mmap_shared and i_mmap lists equally.

Might the problem be in parisc's __flush_dcache_page,
which only examines i_mmap_shared?

Though it's odd, I'm not keen on changing do_mmap_pgoff's usage of
VM_SHARED in a hurry: it's worked like that for years, and other
things (I forget) depend on it.

Hugh



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On Fri, 22 Aug 2003 19:34:41 +0100 (BST)
Hugh Dickins <hugh@veritas.com> wrote:

> And to me.  If VM_SHARED is set, then __vma_link_file puts the vma on
> on i_mmap_shared.  If VM_SHARED is not set, it puts the vma on i_mmap.
> flush_dcache_page treats i_mmap_shared and i_mmap lists equally.

But file system page cache writes only call flush_dache_page()
if the page has a non-empty i_mmap_shared list.

> Might the problem be in parisc's __flush_dcache_page,
> which only examines i_mmap_shared?

No, it examines both lists, the problem is not there.

The issue seems to be some confusion about whether the
test program in question is actually mmap()'ing the area
with PROT_WRITE set, and if so why the test case isn't
passing because in such a case the page will have a non-empty
i_mmap_shared list.


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On Fri, 2003-08-22 at 13:34, Hugh Dickins wrote:
> Might the problem be in parisc's __flush_dcache_page,
> which only examines i_mmap_shared?

This is the issue: we do treat them differently.

Semantics differ between privately mapped data (where there's no
coherency guarantee) and shared data (where there is).  Flushing the
virtual cache is expensive on pa, so we only do it for the i_mmap_shared
list.

The difficulty is that a mmap of a read only file with MAP_SHARED is
expecting the shared cache semantics, but gets added to the non shared
list.

Since flushing the caches is a performance hog, we'd like do be able to
distinguish the cases where we have to do the flush MAP_SHARED mappings
from those we don't (MAP_PRIVATE).

James





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On Fri, 2003-08-22 at 13:31, David S. Miller wrote:
> On Fri, 22 Aug 2003 19:34:41 +0100 (BST)
> Hugh Dickins <hugh@veritas.com> wrote:
> 
> > And to me.  If VM_SHARED is set, then __vma_link_file puts the vma on
> > on i_mmap_shared.  If VM_SHARED is not set, it puts the vma on i_mmap.
> > flush_dcache_page treats i_mmap_shared and i_mmap lists equally.
> 
> But file system page cache writes only call flush_dache_page()
> if the page has a non-empty i_mmap_shared list.

Hmm, but if it does that then the glibc bug test should show up on sparc
because the i_mmap_shared list is empty if we only do MAP_SHARED of read
only files.

James




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Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing
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On 22 Aug 2003, James Bottomley wrote:
> On Fri, 2003-08-22 at 13:34, Hugh Dickins wrote:
> > Might the problem be in parisc's __flush_dcache_page,
> > which only examines i_mmap_shared?
> 
> This is the issue: we do treat them differently.
> 
> Semantics differ between privately mapped data (where there's no
> coherency guarantee) and shared data (where there is).  Flushing the
> virtual cache is expensive on pa, so we only do it for the i_mmap_shared
> list.
> 
> The difficulty is that a mmap of a read only file with MAP_SHARED is
> expecting the shared cache semantics, but gets added to the non shared
> list.
> 
> Since flushing the caches is a performance hog, we'd like do be able to
> distinguish the cases where we have to do the flush MAP_SHARED mappings
> from those we don't (MAP_PRIVATE).

The naming "i_mmap_shared" does suggest that once upon a time those
lists were as you'd like; and that at some point it was changed.

Perhaps some arches prefer the coherency guarantee I'm familiar with
in MAP_PRIVATE (yes, when you modify a page yourself, it cows off and
becomes private; but in i386 it's shared up until then), and other
arches (like yours) would prefer to avoid the overhead.

Hugh



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Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing tst-mmap-eofsync in glibc on parisc)
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In reference to a message from James Bottomley, dated Aug 22:
> On Fri, 2003-08-22 at 13:34, Hugh Dickins wrote:
> > Might the problem be in parisc's __flush_dcache_page,
> > which only examines i_mmap_shared?
> 
> This is the issue: we do treat them differently.

as does some other archs, like ARM.

are we saying that MAP_SHARED != VM_SHARED? the mmap code allows
architectures to map pages differently if MAP_SHARED is specified, but
it puts it on i_mmap vs i_mmap_shared using VM_SHARED, and for read-only
files we silently drop VM_SHARED... so the page is mapped using
MAP_SHARED semantics but placed on i_mmap....

confused,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing
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On 22 Aug 2003 13:56:06 -0500
James Bottomley <James.Bottomley@SteelEye.com> wrote:

> On Fri, 2003-08-22 at 13:31, David S. Miller wrote:
> > On Fri, 22 Aug 2003 19:34:41 +0100 (BST)
> > Hugh Dickins <hugh@veritas.com> wrote:
> > 
> > > And to me.  If VM_SHARED is set, then __vma_link_file puts the vma on
> > > on i_mmap_shared.  If VM_SHARED is not set, it puts the vma on i_mmap.
> > > flush_dcache_page treats i_mmap_shared and i_mmap lists equally.
> > 
> > But file system page cache writes only call flush_dache_page()
> > if the page has a non-empty i_mmap_shared list.
> 
> Hmm, but if it does that then the glibc bug test should show up on sparc
> because the i_mmap_shared list is empty if we only do MAP_SHARED of read
> only files.

Sparc64's alias'able caches are 1) write-through and 2) quite small.

I think I begin to see the issue clearly now.

But you cannot do the VM_SHARED change without an audit first.
Lots of code thinks that VM_SHARED means someone maybe wrote
to the page through a mmap().  For example look at how filemap
sync interprets this flag bit.


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> I took this into account, and the fcpy of a non fr0 is working better
> than before precisely for the reasons you list your original email.
> 
> Should I instead spill the value into memory at dummy's address?

Based on what Jim Hull said, I believe that would be better.  I was using

  "fldd 0(%%sr0,%%sp),%0" : "=f" (d) : "0" (d)

There isn't a true dependency in the above but I believe that any load
to the destination register will raise the exception.

Dave


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On Fri, 2003-08-22 at 14:19, David S. Miller wrote:
> Sparc64's alias'able caches are 1) write-through and 2) quite small.
> 
> I think I begin to see the issue clearly now.
> 
> But you cannot do the VM_SHARED change without an audit first.
> Lots of code thinks that VM_SHARED means someone maybe wrote
> to the page through a mmap().  For example look at how filemap
> sync interprets this flag bit.

Yes, the issue seems to be that the flush_dcache_page() was implemented
with the thought that the caches of the shared mappings may contain
modified data that needs to be flushed to the aliased page.

The opposite property: that the caches of the aliased page need to be
invalidated because someone else changed data in the aliased page seems
to work as a byproduct of the above implementation.

But some of the checks for !list_empty(&mapping->i_shared) are going to
prevent the necessary invalidations on read only shared mappings...which
was the initial problem.

The only issue I can see with not dropping VM_SHARED for read only
shared mappings is that we do spurious (but harmless)
flushe_dcache_page() on reads.

There also appears to be a lurking prob lem in do_mremap, where it keys
off the VM_SHARED flag to set the MAP_SHARED flag for
get_unmapped_area.  That's going to cause us a problem on parisc because
SHARED pages need to obey slightly stricter alignment constraints

All in all, I think not dropping VM_SHARED on read only shared mappings
is the right thing to do.

Do you need a more detailed audit?

James




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Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing
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On 22 Aug 2003 17:27:33 -0500
James Bottomley <James.Bottomley@SteelEye.com> wrote:

> Yes, the issue seems to be that the flush_dcache_page() was implemented
> with the thought that the caches of the shared mappings may contain
> modified data that needs to be flushed to the aliased page.
> 
> The opposite property: that the caches of the aliased page need to be
> invalidated because someone else changed data in the aliased page seems
> to work as a byproduct of the above implementation.
> 
> But some of the checks for !list_empty(&mapping->i_shared) are going to
> prevent the necessary invalidations on read only shared mappings...which
> was the initial problem.

The theory of operation is that there are two "classes" of mappings
for a page, the implicit kernel mapping and all user mappings.  The
goal is to flush out one class from the cache when the other one writes
to such a page.

When a write() system call occurs, the kernel "class" is writing to
the page so all user mappings (shared or not!) need to be flushed
out.

When a read() system call occurs, and shared+writable mmap()'s of
the page exist, we must flush the user mapping "class" before the
kernel "class" tries to read from that page.

You cannot avoid doing things exactly as I've just described without
allowing bad aliases to be in the cache and corrupt data.

Your test case is essentially, annotated with what the kernel
should do at each step:

	static const char *test1 = "Line the first\n";
	static const char *test2 = "Line the second\n";

	temp_fd = open(O_RDWR);
	write(temp_fd, test1, sizeof test1 - 1);

No mmaps of this page, so no flush_dcache_page() call.

 ...
	fd = open(O_RDONLY);
	p = mmap(fd, ... PROT_READ ...);

Not writable, not added to i_mmap_shared list, instead it is
added to normal i_mmap list.

	memcpy(tmp_buf, p, sizeof test1 - 1);
	p += sizeof test1 - 1;
	if (strcmp(tmp_buf, test1))
		BUG();
	...
	write(temp_fd, test2, sizeof test2 - 1);

Mmaps of this page exist, flush_dcache_page() call is made.

	memcpy(tmp_buf, p, sizeof test2 - 1);
	if (strcmp(tmp_buf, test2))
		BUG();

And thus memcpy() sees correct data.

I think on parisc you are trying to avoid the write() case
of the cache flush for non-shared mmap()s, and sorry you
really can't do this, again this is:

	When a write() system call occurs, the kernel "class" is writing to
	the page so all user mappings (shared or not!) need to be flushed
	out.

If your flush_dcache_page() is not doing this, it's no wonder
the test case fails for you.


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On Fri, 2003-08-22 at 17:41, David S. Miller wrote:
> I think on parisc you are trying to avoid the write() case
> of the cache flush for non-shared mmap()s, and sorry you
> really can't do this, again this is:
> 
> 	When a write() system call occurs, the kernel "class" is writing to
> 	the page so all user mappings (shared or not!) need to be flushed
> 	out.
> 
> If your flush_dcache_page() is not doing this, it's no wonder
> the test case fails for you.

Yes, that's precisely what we're trying to do.  Our problem is that we
have to issue the flush to all the aliased addresses (one cache line at
a time) which is phenomenally expensive.

What we were hoping is that we could rely on this little property of
mmap:

       MAP_PRIVATE
                  Create a private copy-on-write mapping.  Stores
                  to the region do not affect the original  file.
                  It  is  unspecified whether changes made to the
                  file after the mmap call  are  visible  in  the
                  mapped region.

To avoid having to flush the non-shared mappings (basically on parisc if
you write to a file backing a MAP_PRIVATE mapping then we don't
guarantee you see the update).

I suppose if we had a way of telling if any of the i_mmap list members
were really MAP_SHARED semantics mappings, then we could alter our
flush_dcache_page() implementation to work.

James




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On Thu, Aug 21, 2003 at 10:19:32PM +0100, Matthew Wilcox wrote:
> 
> Hi.  I've got some changes for the sym53c8xx_2 driver I'm working on.
> Does anyone object to me working on them in the parisc 2.6 tree?

I don't think enough people are *using* 2.6 for anything serious
for that to be a problem. And I'm ok if you warn before committing
stuff which isn't at least lightly tested.

> We've done this kind of thing before (eg with the pcnet32 driver in 2.4)

and I've done it with several other drivers as well (eg tg3, acenic).

> but since every PCI-based parisc box uses sym53c8xx_2 for its scsi,
> I didn't feel it was appropriate to inflict potentially-buggy changes
> on everyone without a little bit of discussion.

cool - thanks!
grant


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On Fri, Aug 22, 2003 at 04:24:19PM -0400, John David Anglin wrote:
> Based on what Jim Hull said, I believe that would be better.  I was using
> 
>   "fldd 0(%%sr0,%%sp),%0" : "=f" (d) : "0" (d)
> 
> There isn't a true dependency in the above but I believe that any load
> to the destination register will raise the exception.

Dave, I'm sorry if you sent me a patch and I dropped it :( Did I ever
receive a diff for this from you?

It's rather vague at times because the spec says "or an operation which
depends on a pending, trapping insn." I think DHD, and perhaps myself
got caught up on the "load or store" which probably means only
register->memory (memory->register too) and not register->register.

I'll rewrite this patch to do an fldd and see what the tests say. I'm
toatally under the assumption that this operation doesn't need to be
optimal :) (e.g. If you use feraiseexcept a lot you are not a
high-performance program).

c.


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On Fri, Aug 22, 2003 at 09:13:37PM +0400, Lev Assinovsky wrote:
> Hi!
> 1. I meant just a hardcoded breakpoint (not hardware)
> Partially works just BREAK 4, 8. Though I need to do "jump" to next line 
> to continue in gdb.

ah ok 
> 2. gdb doesn't work with shared libraries explicitly loaded by program.
> Could you please point to anybody from HP team?

HP Team? Sorry but officially there is no HP parisc-linux team.
Most of us are interested in kernel hacking and less in
making gdb work.

> 3. What about ddd?

sorry - haven't looked at ddd.

grant


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On Fri, Aug 22, 2003 at 10:08:20AM -0600, dann frazier wrote:
> you have e-mailed the admin of the cvs list, which is part of the old bug
> tracking system.
> i've cc'd the parisc-linux list, which is probably the best place to ask.

thanks dann

> On Fri, Aug 22, 2003 at 05:41:07PM +0400, ??????? ??????? wrote:
> > ???????????? ?????????, cvs-admin.
> > 
> >   Please help me cvs download palo !
> >   Please sorry my english
> > 
> >   I am use this and read error messges:
> >     user@panda:~/palo$ cvs -d :pserver:guest@cvs.parisc-linux.org:/ checkout palo
> >     cvs checkout: warning: failed to open /home/user/.cvspass for reading: No such file or directory

try "cvs -d ... login" first.
Just hit <CR> (aka return or enter key) for password prompt.

grant


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On 22 Aug 2003, James Bottomley wrote:
> 
> I suppose if we had a way of telling if any of the i_mmap list members
> were really MAP_SHARED semantics mappings, then we could alter our
> flush_dcache_page() implementation to work.

Good idea.  It's VM_MAYSHARE you need to check for.

Hugh



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Hi i am trying to install Debian 3.0 (woody) in my b2000 although once i have 
booted from the cd to install i have no keyboard or mouse controal. Is usb 
enabled by default ? 

Thanks

-------------------------------------------------
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http://lists.parisc-linux.org/pipermail/parisc-linux/2003-March/01939
9.html


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/
On vacation until Aug 25th.
-------------------
> Hi i am trying to install Debian 3.0 (woody) in my b2000 although=20
once i have=20
> booted from the cd to install i have no keyboard or mouse controal.=20
Is usb=20
> enabled by default ?=20
>=20
> Thanks
>=20
> -------------------------------------------------
> This mail sent through IMP: http://horde.org/imp/
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>=20
>=20



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-------------------
> On Fri, Aug 22, 2003 at 09:13:37PM +0400, Lev Assinovsky wrote:
> > Hi!
> > 1. I meant just a hardcoded breakpoint (not hardware)
> > Partially works just BREAK 4, 8. Though I need to do "jump" to=20
next line=20
> > to continue in gdb.
>=20
> ah ok=20
> > 2. gdb doesn't work with shared libraries explicitly loaded by=20
program.
> > Could you please point to anybody from HP team?
>=20
> HP Team? Sorry but officially there is no HP parisc-linux team.
> Most of us are interested in kernel hacking and less in
> making gdb work.
>=20
> > 3. What about ddd?
>=20
> sorry - haven't looked at ddd.
>=20

ddd is a GUI frontend to gdb...


Thibaut VARENE
PA/Linux ESIEE Team
http://pateam.esiee.fr/
On vacation until Aug 25th



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So... for the second time I messed up and committed 2.6 to the 2.4 tree.
In my defence, this time we were trying the new style of imports so it's
not too surprising I got something wrong (and nobody spotted the problem
till too late...), but twice is too many.

Short term fix: I'm going to merge the latest marcelo patch into our
2.4 tree today.  Looks like that'll be 2.4.22-rc2.  That'll fix this
cvs diff autogeneration breakage.

Long term fix: I'm going to rename the linux tree to linux-2.4.  This will
cause some disruption since everyone with a cvs tree checked out will have
to mangle it to work again.  I'll make a script available in build-tools
to mangle your tree for you.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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>Congratulation, I will try it also on the N (64bits)

I grab last osdl-aim-7-0.1.9 (date Aug 04) and launch the test that Grant
mentionned (I just stop the 3d run (option -r3) with kernel without patch
because -e500 seems to take too much time: full night and I want to test

the patched kernel)

With the patch kernel I also want to launch 3 run test but with -e300 (Just
have a N obviously UP 550Mhz?).
The first two run seems to work fine when during the last run I get a lot
of messages "Child caught raw signal ?" and so I could not grab (cut and
past) the first results :( .

I now relaunch test for only two runs and so hope the results for next week,
sorry.

Thanks again,
    Joel


------------------------------------------
------------------------------
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http://reg.tiscali.be/default.asp?lg=
> r


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Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing
	tst-mmap-eofsync in glibc on parisc)
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On Sat, 2003-08-23 at 02:22, Hugh Dickins wrote:
> Good idea.  It's VM_MAYSHARE you need to check for.

OK, to get all this to work, there's a corner case in do_mremap() that I
need to be fixed:

When choosing the flags for the new area, it keys off VM_SHARED to
determine whether MAP_SHARED is passed to the mapping.  It has to key of
VM_MAYSHARE to preserve VM_MAYSHARE on the new mapping.

Patch below.

James



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=3D=3D=3D=3D=3D mremap.c 1.32 vs edited =3D=3D=3D=3D=3D
--- 1.32/mm/mremap.c	Thu Aug  7 12:29:10 2003
+++ edited/mremap.c	Sat Aug 23 10:54:21 2003
@@ -420,7 +420,7 @@
 	if (flags & MREMAP_MAYMOVE) {
 		if (!(flags & MREMAP_FIXED)) {
 			unsigned long map_flags =3D 0;
-			if (vma->vm_flags & VM_SHARED)
+			if (vma->vm_flags & VM_MAYSHARE)
 				map_flags |=3D MAP_SHARED;
=20
 			new_addr =3D get_unmapped_area(vma->vm_file, 0, new_len,

--=-twwyVK3YP0a7nX0FTdaG--



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> On Fri, Aug 22, 2003 at 04:24:19PM -0400, John David Anglin wrote:
> > Based on what Jim Hull said, I believe that would be better.  I was using
> > 
> >   "fldd 0(%%sr0,%%sp),%0" : "=f" (d) : "0" (d)
> > 
> > There isn't a true dependency in the above but I believe that any load
> > to the destination register will raise the exception.
> 
> Dave, I'm sorry if you sent me a patch and I dropped it :( Did I ever
> receive a diff for this from you?

I can't recall but I probably did send it last November.  My email
machine is still down because of the blackout.

> It's rather vague at times because the spec says "or an operation which
> depends on a pending, trapping insn." I think DHD, and perhaps myself
> got caught up on the "load or store" which probably means only
> register->memory (memory->register too) and not register->register.

Yes.  If you follow the thread that I sent you, Jim Hull comments on
this and offers a rewrite of the sentence that you quoted.  I believe
that referencing memory is important as this makes the operation visible
to another processor.  A register->register operation doesn't do this.

Dave


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Subject: [parisc-linux] Proposed changes to flush_dcache_page to fix our shared ro mapping
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The attached should do it

(plus the fix to preserve the VM_MAYSHARE flag on remap).

I've verified that this fixes the glibc tst-mmap-eofsync test.

James


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=3D=3D=3D=3D=3D arch/parisc/kernel/cache.c 1.4 vs edited =3D=3D=3D=3D=3D
--- 1.4/arch/parisc/kernel/cache.c	Sat Mar  8 14:01:30 2003
+++ edited/arch/parisc/kernel/cache.c	Sat Aug 23 11:22:22 2003
@@ -232,7 +232,8 @@
=20
 	if (!page->mapping)
 		return;
-
+	/* check shared list first if it's not empty...it's usually
+	 * the shortest */
 	list_for_each(l, &page->mapping->i_mmap_shared) {
 		struct vm_area_struct *mpnt;
 		unsigned long off;
@@ -243,6 +244,33 @@
 		 * If this VMA is not in our MM, we can ignore it.
 		 */
 		if (mpnt->vm_mm !=3D mm)
+			continue;
+
+		if (page->index < mpnt->vm_pgoff)
+			continue;
+
+		off =3D page->index - mpnt->vm_pgoff;
+		if (off >=3D (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT)
+			continue;
+
+		flush_cache_page(mpnt, mpnt->vm_start + (off << PAGE_SHIFT));
+
+		/* All user shared mappings should be equivalently mapped,
+		 * so once we've flushed one we should be ok
+		 */
+		return;
+	}
+
+	/* then check private mapping list for read only shared mappings
+	 * which are flagged by VM_MAYSHARE */
+	list_for_each(l, &page->mapping->i_mmap) {
+		struct vm_area_struct *mpnt;
+		unsigned long off;
+
+		mpnt =3D list_entry(l, struct vm_area_struct, shared);
+
+
+		if (mpnt->vm_mm !=3D mm || !(mpnt->vm_flags & VM_MAYSHARE))
 			continue;
=20
 		if (page->index < mpnt->vm_pgoff)

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On Sat, Aug 23, 2003 at 04:54:26PM +0100, Joel Soete wrote:
> With the patch kernel I also want to launch 3 run test but with -e300 (Just
> have a N obviously UP 550Mhz?).

Pick whatever parameters are reasonable.
The -e100 to -e500 worked well on a dual 1Ghz rx2600 with 3 or 4 GB of RAM.
You might try -e50 -> -e250 in steps of 50....at least until the VM
address aliasing is fixed and you can run 8-way on the N-class.

> The first two run seems to work fine when during the last run I get a lot
> of messages "Child caught raw signal ?" and so I could not grab (cut and
> past) the first results :( .
> 
> I now relaunch test for only two runs and so hope the results for next week,
> sorry.

np - thanks.

grant


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From: "David S. Miller" <davem@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing
 tst-mmap-eofsync in glibc on parisc)
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To: James Bottomley <James.Bottomley@SteelEye.com>
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On 22 Aug 2003 20:09:30 -0500
James Bottomley <James.Bottomley@SteelEye.com> wrote:

> What we were hoping is that we could rely on this little property of
> mmap:
> 
>        MAP_PRIVATE
>                   Create a private copy-on-write mapping.  Stores
>                   to the region do not affect the original  file.
>                   It  is  unspecified whether changes made to the
>                   file after the mmap call  are  visible  in  the
>                   mapped region.
> 
> To avoid having to flush the non-shared mappings (basically on parisc if
> you write to a file backing a MAP_PRIVATE mapping then we don't
> guarantee you see the update).
> 
> I suppose if we had a way of telling if any of the i_mmap list members
> were really MAP_SHARED semantics mappings, then we could alter our
> flush_dcache_page() implementation to work.

I thought about this very deeply last night and this morning.
And what you're trying to optimize won't work.  Here is why.

If the first access to a MAP_PRIVATE mapping of a page is a read,
we'll use the page-cache page.  This means that, with your
optimization, during this time if another cpu write()`s into the
page we'll lose the data update.

Sorry :(


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing
 tst-mmap-eofsync in glibc on parisc)
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On Sat, 23 Aug 2003 08:22:19 +0100 (BST)
Hugh Dickins <hugh@veritas.com> wrote:

> On 22 Aug 2003, James Bottomley wrote:
> > 
> > I suppose if we had a way of telling if any of the i_mmap list members
> > were really MAP_SHARED semantics mappings, then we could alter our
> > flush_dcache_page() implementation to work.
> 
> Good idea.  It's VM_MAYSHARE you need to check for.

Nope, please see my other email for why all of these ideas
simply will not work.  If the first fault-in of a MAP_PRIVATE
page is a read, it's just like a MAP_SHARED read-only page until
the first write occurs.


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing
	tst-mmap-eofsync in glibc on parisc)
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On Sat, 2003-08-23 at 16:43, David S. Miller wrote:
> On 22 Aug 2003 20:09:30 -0500
> James Bottomley <James.Bottomley@SteelEye.com> wrote:
> 
> > What we were hoping is that we could rely on this little property of
> > mmap:
> > 
> >        MAP_PRIVATE
> >                   Create a private copy-on-write mapping.  Stores
> >                   to the region do not affect the original  file.
> >                   It  is  unspecified whether changes made to the
> >                   file after the mmap call  are  visible  in  the
> >                   mapped region.
> > 
> > To avoid having to flush the non-shared mappings (basically on parisc if
> > you write to a file backing a MAP_PRIVATE mapping then we don't
> > guarantee you see the update).
> > 
> > I suppose if we had a way of telling if any of the i_mmap list members
> > were really MAP_SHARED semantics mappings, then we could alter our
> > flush_dcache_page() implementation to work.
> 
> I thought about this very deeply last night and this morning.
> And what you're trying to optimize won't work.  Here is why.
> 
> If the first access to a MAP_PRIVATE mapping of a page is a read,
> we'll use the page-cache page.  This means that, with your
> optimization, during this time if another cpu write()`s into the
> page we'll lose the data update.
> 
> Sorry :(

Could you elaborate some more?  I agree that the MAP_PRIVATE mapping may
not see cpu1's write because of cache incoherencies (but that's what I
believe is covered by the `unspecified' bit of the MAP_PRIVATE
definition above).  MAP_PRIVATE is COW (i.e. the page is marked read
only while it's shared), so there can be no data to flush in the cache
for the page of the MAP_PRIVATE process...The only scenario I see where
we can get cache based data destruction is if two cache aliases both
contain dirty caches for the page (which can only happen for MAP_SHARED
RW, which we already have the correct semantics for...they're racing to
do a msync and the last one in wins).

James




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Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing
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On 23 Aug 2003 17:21:21 -0500
James Bottomley <James.Bottomley@SteelEye.com> wrote:

> On Sat, 2003-08-23 at 16:43, David S. Miller wrote:
> > On 22 Aug 2003 20:09:30 -0500
> > James Bottomley <James.Bottomley@SteelEye.com> wrote:
> > 
> > >        MAP_PRIVATE
> > >                   Create a private copy-on-write mapping.  Stores
> > >                   to the region do not affect the original  file.
> > >                   It  is  unspecified whether changes made to the
> > >                   file after the mmap call  are  visible  in  the
> > >                   mapped region.
...
> Could you elaborate some more?  I agree that the MAP_PRIVATE mapping may
> not see cpu1's write because of cache incoherencies (but that's what I
> believe is covered by the `unspecified' bit of the MAP_PRIVATE
> definition above).

Ok.  Let me think about this a bit more.

The safest solution for parisc, meanwhile, would be to walk the
non-shared mmap list checking for any instance of the VM_MAYSHARE bit
being set.


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Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing
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On 23 Aug 2003 17:21:21 -0500
James Bottomley <James.Bottomley@SteelEye.com> wrote:

> On Sat, 2003-08-23 at 16:43, David S. Miller wrote:
> > On 22 Aug 2003 20:09:30 -0500
> > James Bottomley <James.Bottomley@SteelEye.com> wrote:
> > 
> > > To avoid having to flush the non-shared mappings (basically on parisc if
> > > you write to a file backing a MAP_PRIVATE mapping then we don't
> > > guarantee you see the update).

BTW, what gains to you really get from this optimization?

How often do writes happen to files while private mappings
to it exist? :-)  This is one of the reasons I think this
discussion is a bit silly.

What specific cases does your optimization help, and how common is it?
Show us some numbers.



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Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing
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On Sat, 2003-08-23 at 17:51, David S. Miller wrote:
> Ok.  Let me think about this a bit more.
> 
> The safest solution for parisc, meanwhile, would be to walk the
> non-shared mmap list checking for any instance of the VM_MAYSHARE bit
> being set.

Right, that's how I plan to fix this problem in parisc.

We also need the VM_MAYSHARE flag to propagate across remappings, which
was the general kernel fix I sent some emails back.

James




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On Sat, 2003-08-23 at 17:53, David S. Miller wrote:
> BTW, what gains to you really get from this optimization?
> 
> How often do writes happen to files while private mappings
> to it exist? :-)  This is one of the reasons I think this
> discussion is a bit silly.
> 
> What specific cases does your optimization help, and how common is it?
> Show us some numbers.

Not having to flush the private mappings is a huge optimisation.  Our
current flush_dcache_page implementation allows us only to flush a
single page and get all the aliased caches updated because we carefully
align MAP_SHARED areas (by supplying our own arch_get_unmapped_area()).

However, the alignment constraint is 4MB to get this property of the
virtually aliased caches, so we can't afford to align all mappings like
this (for our 32 bit userspace, anyway).

If we were to have to flush the private i_mmap list, we'd have to do a
page flush for *every* entry in the list (that's 256 instructions per
page at a cache width of 16 bytes).  This would be a horrific overhead.

using the VM_MAYSHARE to carry the read only shared mapping semantics
indication still allows us to align correctly, but the only additional
overhead we incur is to walk the i_mmap list to find VM_MAYSHARE
mappings as well as i_mmap_shared.  Since we can key of VM_MAYSHARE to
do the alignment, we still only need flush the first one we come to.

This all works as long as we can agree there are no pathological mmap
cases that force us to flush *all* the i_mmap mappings...which is what I
think the discussion has come down to.

James




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On 23 Aug 2003 18:11:16 -0500
James Bottomley <James.Bottomley@SteelEye.com> wrote:

> On Sat, 2003-08-23 at 17:53, David S. Miller wrote:
> > How often do writes happen to files while private mappings
> > to it exist? :-)  This is one of the reasons I think this
> > discussion is a bit silly.
 ...
> Not having to flush the private mappings is a huge optimisation.

You're not answering my question :(

I know that when the case _DOES_ happen, your optimization is
worthwhile, my question is not about this.  My question is about
how often does this case happen.



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On Sat, 2003-08-23 at 19:22, David S. Miller wrote:
> You're not answering my question :(
> 
> I know that when the case _DOES_ happen, your optimization is
> worthwhile, my question is not about this.  My question is about
> how often does this case happen.

Well the case we're arguing about depends on whether glibc uses mmaped
file descriptors for libio.  If it doesn't (which is how my machine is
configured) then you're right, we never get to loop the i_mmap list
because it's usually empty when flush_dcache_page is called.

The only things I can really come up with are contrived cases with glibc
mmaped file objects...then it is a big win if we open lots of
mappings---which I guess would mainly happen with multi-threaded
applications.  Do you have any applications you'd like me to run
comparisons on?

James






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> The only things I can really come up with are contrived cases with glibc
> mmaped file objects...then it is a big win if we open lots of
> mappings---which I guess would mainly happen with multi-threaded
> applications.  Do you have any applications you'd like me to run
> comparisons on?

This is what I'm asking of you, to find cases in real life,
not some contrived example, where your optimization helps
appreciably.


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Grant Grundler wrote:

> [...] at least until the VM

> address aliasing is fixed and you can run 8-way on the N-class.

:)) it was just a machine for testing and so to save money there was 
just purchased 2 cpu (but for my part it would already be nice to make 
it run in SMP mode :) )

btw: I countinue investigations but I still have to learn a lot about 
how [id]tlb's cach are managed during cpu's startup...

Ha yes, question: can I find PSW for each cpu in a piminfo?

Thanks again,
Joel



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On Sun, 2003-08-24 at 00:23, David S. Miller wrote:
> This is what I'm asking of you, to find cases in real life,
> not some contrived example, where your optimization helps
> appreciably.

Oh, OK, that's easy...it's what the glibc test was designed for.

In glibc, for each file you fopen as a mapped file, you seem to get a
separate mmapping of the file (this actually looks wrong to me...it
seems glibc should have only one mapping per file which all the file
objects share, but anyway).  That means we get one entry in one of the
i_mmaps lists for each of the opens.  Since these are files, the chances
are they'll be read and written which will generate lots of dcache
flushes.  This case would kill us if we had to flush every entry in
i_mmap.

Right at the moment, you have to specifically request that the file be
mmapped by specifying the "m" modifier, but glibc seems to be migrating
to this being the default one day...that's what I want to be ready for.

Besides the optimisation adds no overhead and compromises nothing, so
its worth doing regardless.

James




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On Sun, Aug 24, 2003 at 12:51:10PM +0000, Joel Soete wrote:
> btw: I countinue investigations but I still have to learn a lot about 
> how [id]tlb's cach are managed during cpu's startup...

I thought this was a runtime problem (ie userspace <-> kernel
interaction)

> Ha yes, question: can I find PSW for each cpu in a piminfo?

yes


grant


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Subject: [parisc-linux] Re: Added a new SCSI disk, hda became hdb
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On Sun, Aug 24, 2003 at 09:13:40PM +0200, Ralf Hildebrandt wrote:
> Hi!
> 
> Today I added a new SCSI disk, and hda -- my bootdisk -- became hdb -- no
> matter which SCSI ID I chose for the new disk.
> 
> The old disk has ID 6, and I can do whatever I want, once I add the new
> disk, I cannot boot, since the kernel doesn't find it's rootfs on hda
> -- since it's hdb now.
> 
> How can I add a new physical disk as hdb ?

Put the disks in the reverse order?

An example is that any A500 or rp2430 labels the drives as 'scsia' and
'scsib', but linux finds them in the reverse order. When only one drive is
in 'scsia' it's sda, but when a second drive is added to 'scsib' the
order is reversed ('scsia' becomes sdb and 'scsib' becomes sda).

c.



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On Sun, Aug 24, 2003 at 04:38:57PM -0400, Carlos O'Donell wrote:
> Put the disks in the reverse order?
> 
> An example is that any A500 or rp2430 labels the drives as 'scsia' and
> 'scsib', but linux finds them in the reverse order. When only one drive is
> in 'scsia' it's sda, but when a second drive is added to 'scsib' the
> order is reversed ('scsia' becomes sdb and 'scsib' becomes sda).

This is because HPUX uses the ANSI-approved scan order -- 7,6,5,...,0
and Linux uses the PC-compatible scan order -- 0,1,2,...,7.  It's kind
of possible to control it by setting shost->reverse_ordering but it's
not easy to set this in any reasonable way.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sun, Aug 24, 2003 at 10:42:12PM +0100, Matthew Wilcox wrote:
> This is because HPUX uses the ANSI-approved scan order -- 7,6,5,...,0

Not true. HPUX scans the SCSI bus from 0-7 for narrow or 0-15 for wide.

Under HPUX, SCSI controllers are assigned instance numbers and the
kernel records those in /stand/ioconfig. The SCSI controller will
get the same instance number after reboot regardless of other IO
devices changing.

grant


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I meant have you heard about ddd for HP-UX 11.00?

----
Lev Assinovsky
Aelita Software Corporation
O&S Core Division, Programmer
ICQ# 165072909


> -----Original Message-----
> From: Thibaut VARENE [mailto:varenet@esiee.fr]
> Sent: Saturday, August 23, 2003 1:56 PM
> To: Grant Grundler
> Cc: Lev Assinovsky; parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Help: Need instruction sequence for gdb
> breakpoint
>=20
>=20
> -------------------
> > On Fri, Aug 22, 2003 at 09:13:37PM +0400, Lev Assinovsky wrote:
> > > Hi!
> > > 1. I meant just a hardcoded breakpoint (not hardware)
> > > Partially works just BREAK 4, 8. Though I need to do "jump" to=20
> next line=20
> > > to continue in gdb.
> >=20
> > ah ok=20
> > > 2. gdb doesn't work with shared libraries explicitly loaded by=20
> program.
> > > Could you please point to anybody from HP team?
> >=20
> > HP Team? Sorry but officially there is no HP parisc-linux team.
> > Most of us are interested in kernel hacking and less in
> > making gdb work.
> >=20
> > > 3. What about ddd?
> >=20
> > sorry - haven't looked at ddd.
> >=20
>=20
> ddd is a GUI frontend to gdb...
>=20
>=20
> Thibaut VARENE
> PA/Linux ESIEE Team
> http://pateam.esiee.fr/
> On vacation until Aug 25th
>=20
>=20


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>> btw: I countinue investigations but I still have to learn a lot about

>> how [id]tlb's cach are managed during cpu's startup...
>
>I thought this was a runtime problem (ie userspace <-> kernel
>interaction)
>
I still have to make some additional test and grab much more info.
In a previous mail (N4000 running SMP), I just report an interesting experience
(well for me, I would just like to reproduce it but now by collecting info
until crash and piminfo). After more thought, I figure out that printk()
just slow down the moment of panic. Never the less, where I am waiting a
panic (if I well understand Willy's idea), I got much 'itlb miss fault' followed
by 'dtlb miss fault'? So I would like to study now the early boot process
(specialy for the second cpu) to try to understand how caches (for shared
insn and data) are replicated into other CPU's [id]tlb.

> Ha yes, question: can I find PSW for each cpu in a piminfo?

yes

Can you tell me more: in a previous piminfo collected I got for CPU#3 (3
is the "address" of the second cpu)
[...]
-------  Processor 3 HPMC Information - PDC Version: 41.28   ------ 

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

HPMC Chassis Codes 

       Chassis Code        Extension 
       ------------        --------- 
       0x0000082000ff6242  0x0000000000000000
       0x1800082011036322  0xcb81800000000000
       

General Registers 0 - 31
00-03  0000000000000000  0000000010536c70  0000000010115e58  00000000103aaf64
04-07  0000000000000002  00000000103ac494  0000000000000001  0000000010527470
08-11  0000000000000001  000000008f1f45b8  000000008f3cebc0  000000001057dcb0
12-15  00000000faf005f0  0000000000028280  0000000000020000  00000000faf00548
16-19  00000000faf005d0  0000000000004000  0000000000016000  0000000000000001
20-23  0000000000006061  000000001044ec08  0000000010539c70  000000001041b130
24-27  0000000000000000  000000000800000f  0000000010527c70  0000000010527470
28-31  0000000000000480  000000008f1f4e30  000000008f1f4e40  000000001052a470


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000010  0000000000000000  00000000000000c0  0000000000000036
12-15  0000000000000000  0000000000000000  0000000000107000  ffe0000000000000
16-19  0000001f0fd05cbd  0000000000000000  0000000010116050  0000000008000240
20-23  0000000000000000  0000000000000000  000000000806070f  0000000000000000
24-27  0000000000453000  000000007f1f2000  0000000000041020  000000ffff95c810
28-31  000000ffff95c810  5555555555555555  000000008f1f4000  0000000000008020

Space Registers 0 - 7
00-03  00000400          00000400          00000000          00000400
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000010116054
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030000d
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffed2d000
System Requestor Address     = 0x000000fffed2c000


Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000010586ec0  0000000000000002  00000000104c7b68  0000000000000420
08-11  0000000000000000  0000000000000802  0000000010527470  000000001058a000
12-15  00000000135a0000  0000000000000000  000000001017dc84  00000000103ceb94
16-19  00000000000009f0  000000008facf000  0000000010527470  00000000135a0000
20-23  00000000103aa184  fffffffffffffff4  00000000003f45a2  000000000000ba2e
24-27  0000999900000000  00009999035a0b70  00000000035a0b78  000000001040d980
28-31  000000001040d980  00000000ff915e20  0000000010185248  0000000000000016


Check Summary                = 0xcb81800000000000
Available Memory             = 0x0000000100000000
CPU Diagnose Register 2      = 0x0301030800802004
CPU Status Register 0        = 0x3640c24000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x48e0000000000002
Read Short LOG               = 0xc18080ff80080014


-----------------  DEW 3 HPMC Information -  ------ 

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

Runway Control Log Reg            = 0x0006720000000000
Runway Address Data Log Reg Odd   = 0xfffffffffffc3f00
Runway Address Data Log Reg Even  = 0xfffffffffffc3f00
Runway Address Log Reg            = 0x0000000000000048
Runway Broad Error Log Reg        = 0x00000000000000dc

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X             ERR_ERROR       X            X   X       

Merced Bus Requestor Address      = 0x0000000000000000
Merced Bus Target Address         = 0x0000000000000000
Merced Bus Responder Address      = 0x0000000000000000
Merced Error Status Reg           = 0x2001000000082004
Merced Error Overflow Reg         = 0x0000000000082000
Merced AERR Addr1 Log Reg         = 0x00c0000000300000
Merced AERR Addr2 Log Reg         = 0x0000000000f00000
Merced DERR  Log Reg              = 0x00c1100000000000
Merced Error Syndrome Reg         = 0x0000000052000000


-------  Processor 3  LPMC Information ------------------

[...] (all 0)


-------  Processor 3  TOC Information -------------------

[...] (all 0)

--------------  Memory Error Log Information  --------------

Bus 0 Log Information

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
                ERR_ERROR       X                X       

Bus Requestor Address      = 0x0000000000000000
Bus Target Address         = 0x0000000000000000
Bus Responder Address      = 0x0000000000000000

Error Status Reg           = 0x0000000000080000
Error Overflow Reg         = 0x0000000000080000
AERR Address 1 Log Reg     = 0x0000000000000000
AERR Address 2 Log Reg     = 0xf800000000000000
FERR  Log Reg              = 0x0000000000000000
DERR  Log Reg              = 0x000112800051cdc0
Error Syndrome Reg         = 0x0000000000000000



 Address/Control Parity Error Registers  

   Address/Control Parity Error Bit (AE) Not Set 



Bus 1 Log Information

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_TIMEOUT   X               X           

Bus Requestor Address      = 0xfffffffffed2c000
Bus Target Address         = 0x00000000f000a000
Bus Responder Address      = 0x0000000000000000

Error Status Reg           = 0x0000000000000800
Error Overflow Reg         = 0x0000000000000800
AERR Address 1 Log Reg     = 0x08006000f000a000
AERR Address 2 Log Reg     = 0x6000b0002f700a10
FERR  Log Reg              = 0x0000000000000000
DERR  Log Reg              = 0x0000000000000000
Error Syndrome Reg         = 0x0000000000000000



 Address/Control Parity Error Registers  

   Address/Control Parity Error Bit (AE) Not Set 



------------  I/O Module Error Log Information  ------------

Summary of IO subsystem log entries
-----------------------------------
                        Phys Loc             Vendor  Device   Severity
Description             (hex)                 Id      Id      CORR UNC FE
 CW
-----------             -----                ------  ------   ----------------
System Bus Adapter SB  0x000000ffffffff82   0x103c  0x1050              X
System Bus Adapter SB  0x000000ffffffff82   0x103c  0x1050              X


Detail display of IO subsystem log entries
------------------------------------------

System Bus Adapter -- System Bus Interface
------------------------------------------

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X       X     ERR_ERROR       X                X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0xfffffffffed00000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000007ff0034

System Bus Adapter -- System Bus Interface
------------------------------------------

Timestamp =    Mon Aug  11 12:56:02 GMT 2003    (20:03:08:11:12:56:02)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X       X     ERR_ERROR       X                X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0xfffffffffed40000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff01

Module Error Register   = 0x0000000007ff0034

[...]

Under which field name is it hiden?

Thanks again,
    Joel



btw: a preliminary pim analyse of above mentioned piminfo reports me:
[...]
Parse IAOQ = 0x000000001010b8cc for CPU[1]

Func: update_mmu_cache, Off: 0x4, Addr: 0x1010b8cc

    1010b8c0:	37 de 3f 01 	ldo -80(sp),sp
    1010b8c4:	00 00 00 00 	break 0,0
	...
000000001010b8c8 <update_mmu_cache>:

	...
    1010b8c8:	0f c2 12 c1 	std rp,-10(,sp)
    1010b8cc:	2b 6a 20 00 	addil 15000,dp,%r1
[...]

hmm very interesting (A yes I was much trying to debug my script then actualy
reading outputs: my bad :( )

[...]
Parse IAOQ = 0x0000000010116054 for CPU[3]

Func: smp_call_function, Off: 0x274, Addr: 0x10116054

    10116050:	08 00 02 40 	nop
    10116054:	0e a0 10 d3 	ldd 0(,r21),r19
    10116058:	0a 93 04 33 	sub r19,r20,r19
    1011605c:	ee 60 ff c5 	cmpib,*> 0,r19,10116044 <smp_call_function+0x264>



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>So... for the second time I messed up and committed 2.6 to the 2.4 tree.

Thanks for advise.

I just update this Monday morning and just notice that last Carlos's patch
(itlb_fault optmizaztion) were reverted (also). Accident? (one step beyond
:) )

>In my defence, this time we were trying the new style of imports so it's
>not too surprising I got something wrong (and nobody spotted the problem
>till too late...), but twice is too many.

[In french we say "never twice without thrice" ( :-) )]

>Short term fix: I'm going to merge the latest marcelo patch into our
>2.4 tree today.  Looks like that'll be 2.4.22-rc2.  That'll fix this
>cvs diff autogeneration breakage.

Cool (i am awaiting this for a long time :) )

>Long term fix: I'm going to rename the linux tree to linux-2.4.  This will
>cause some disruption since everyone with a cvs tree checked out will have
>to mangle it to work again.  I'll make a script available in build-tools
>to mangle your tree for you.

Thanks again,
    Joel

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> I meant have you heard about ddd for HP-UX 11.00?

I compiled it successfully on my b180 with hpux-11.00 (but a long time ago)
and it was running fine (for the few I used).

hth,
    Joel

PS: Onto http://hpux.connect.org.uk/ there is available a very old release
(2.0). But you could try to ask them to compile a sd package for a new release.



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On Mon, Aug 25, 2003 at 12:03:20PM +0200, Joel Soete wrote:
> So I would like to study now the early boot process
> (specialy for the second cpu) to try to understand how caches (for shared
> insn and data) are replicated into other CPU's [id]tlb.

The additional CPUs just reference (ie load) the shared data using
the same address. AFAIK, a cacheline will get loaded as "shared clean"
until someone writes to it - which is when the cacheline ping-pong
starts.

> Can you tell me more: in a previous piminfo collected I got for CPU#3 (3
> is the "address" of the second cpu)

PAT PDC (L-/N-class and A500) have hard coded numbers for CPUs.
parisc-linux only uses logical CPU numbers to avoid sparsely populated
arrays. parisc-linux can get the "Physical CPU #" from PAT PDC.
See code inside USE_PAT_CPUID in arch/parisc/kernel/processor.c.
You might hack that code a bit so you can correlate logic to physical
CPU numbers.

grant


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On Mon, 2003-08-25 at 11:45, Grant Grundler wrote:
> PAT PDC (L-/N-class and A500) have hard coded numbers for CPUs.
> parisc-linux only uses logical CPU numbers to avoid sparsely populated
> arrays. parisc-linux can get the "Physical CPU #" from PAT PDC.
> See code inside USE_PAT_CPUID in arch/parisc/kernel/processor.c.
> You might hack that code a bit so you can correlate logic to physical
> CPU numbers.

Not for 2.6 we shouldn't.  The beginnings of the hotplug CPU API made
logical CPU numbers deprecated (even for x86, which was the worst
logical vs phsyical number abuser).  We need to move entirely to
physical numbers only for 2.6

James




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                           V I R U S  A L E R T

Our viruschecker found the

	'W32/Sobig-F'

virus(es) in your email to the following recipient(s):

-> ulisse@dimat.unipv.it

Please check your system for viruses, or ask your system administrator
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As some viruses can send themselves using fake email addresses it is possible
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For your reference, here are the headers from your email:

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I noticed that gdb breakpoints don't seem to work when running a 2.6
kernel.... do other people see this problem too?

I guess it might be a icache flushing problem, but I don't see why 2.6
will be different from 2.4. Does anybody have some time to look into
this?

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Xref: news.gmane.org gmane.linux.ports.parisc:19336

Well sorry for delay but here are some results with reaim:

** without itlb patch:
palx4000:# ./reaim -s25 -i25 -e300 -t -f workfile.new_dbase  

REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
25      169.01   53.58   110.99  914.15     36.57      4.14     2.51    
97   
50      325.85   100.05  218.86  948.29     18.97      8.06     2.54    
97   
75      490.89   155.85  326.41  944.20     12.59      15.25    3.21    
96   
100     651.37   207.02  434.83  948.77     9.49       21.20    3.37    
96   
125     812.15   259.13  542.80  951.18     7.61       24.58    3.13    
96   
150     971.88   308.85  651.77  953.82     6.36       31.30    3.33    
96   
175     1136.93  367.07  758.72  951.25     5.44       34.87    3.16    
96   
200     1295.63  416.43  867.37  953.98     4.77       41.33    3.30    
96   
225     1456.38  464.97  977.89  954.76     4.24       48.11    3.42    
96   
250     1626.22  526.17  1086.14 950.06     3.80       52.59    3.34    
96   
275     1771.56  563.64  1192.66 959.32     3.49       52.07    3.04    
96   
300     1943.16  626.54  1301.12 954.12     3.18       58.82    3.13    
96   
Max Jobs per Minute 959.32

** With itlb patch

palx4000:/usr/src/work/Bench/osdl-aim-7/src# ./reaim -s25 -i25 -e300 -t -f
workfile.new_dbase -r2                     

REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
25      169.10   54.33   110.57  913.66     36.55      4.87     2.96    
97   
50      333.73   107.53  218.98  925.90     18.52      10.96    3.40    
96   
75      496.19   160.85  326.81  934.12     12.45      14.36    2.98    
97   
100     647.24   202.66  435.30  954.82     9.55       18.62    2.97    
97   
125     811.55   258.77  543.35  951.88     7.62       27.05    3.45    
96   
150     974.62   312.28  650.87  951.14     6.34       30.33    3.21    
96   
175     1136.86  364.74  760.01  951.30     5.44       36.03    3.27    
96   
200     1305.43  426.45  865.77  946.81     4.73       41.49    3.28    
96   
225     1465.96  475.20  977.01  948.53     4.22       45.79    3.23    
96   
250     1625.77  526.57  1083.94 950.32     3.80       53.29    3.39    
96   
275     1785.44  578.00  1191.64 951.87     3.46       57.40    3.32    
96   
300     1952.36  635.80  1299.95 949.62     3.17       57.21    3.02    
96   
Max Jobs per Minute 954.82
REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent 
25      169.98   54.46   111.16  908.93     36.36      6.15     3.73    
96   
50      331.44   104.88  219.30  932.30     18.65      10.53    3.29    
96   
75      493.99   156.05  328.53  938.28     12.51      13.40    2.79    
97   
100     653.11   209.79  434.23  946.24     9.46       21.99    3.48    
96   
125     814.31   262.08  542.37  948.66     7.59       27.24    3.46    
96   
150     981.09   317.95  651.39  944.87     6.30       29.74    3.13    
96   
175     1137.42  364.84  760.67  950.84     5.43       36.31    3.30    
96   
200     1295.86  415.52  866.98  953.81     4.77       39.21    3.12    
96   
225     1463.61  472.96  977.13  950.05     4.22       44.79    3.16    
96   
250     1617.00  517.55  1084.14 955.47     3.82       49.42    3.15    
96   
275     1791.29  581.68  1193.78 948.76     3.45       57.33    3.31    
96   
300     1942.85  624.79  1302.10 954.27     3.18       59.52    3.16    
96   
Max Jobs per Minute 955.47

Now that I find what seems reasonable parameters (?) I would try to reboot
the system tomorrow morning and relaunch test with itlb patch (just to confirm
results).

hth,
    Joel


-------------------------------------------------------------------------
Tiscali ADSL, seulement 35 eur/mois et le modem est inclus...abonnez-vous!
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when booting from the cd i am unable to mount the cd for use... i have read 
some where about this prblem if i am using verbose mode? is this correct if so 
how do i get round it. Thanks



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On Mon, Aug 25, 2003 at 11:50:45AM -0500, James Bottomley wrote:
> Not for 2.6 we shouldn't.

My intent was not to commit the code, but just get debugging working.

> The beginnings of the hotplug CPU API made
> logical CPU numbers deprecated (even for x86, which was the worst
> logical vs phsyical number abuser).  We need to move entirely to
> physical numbers only for 2.6

That's not technically possible.
PARISC firmware uses the HPA to reference specific devices (including CPU).

We can use the same CPU number as PAT PDC and call them "physical".
But systems which don't have PAT PDC can only use arbitrary numbers
assigned by the parisc-linux startup code. Maybe there is a way to
make the numbers match PIM info output but I'm not sure how.

hth,
grant


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On Mon, Aug 25, 2003 at 07:59:14PM +0100, mmogenius@v8fiesta.co.uk wrote:
> when booting from the cd i am unable to mount the cd for use...

Need to know which model parisc box you have and which model CD ROM.

> i have read some where about this prblem if i am using verbose mode?

Where did you read this? (ie post a URL)

> is this correct if so 
> how do i get round it. Thanks


grant


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I have a hp visualise b2000 and i am using debian 3.0 (woody)

the device type is listed as a FX4830T i dont have the url where i read this 
unfortunately i have read rather allot of documentation and got verry 
confused. 

Thanks

Quoting Grant Grundler <grundler@parisc-linux.org>:

> On Mon, Aug 25, 2003 at 07:59:14PM +0100, mmogenius@v8fiesta.co.uk wrote:
> > when booting from the cd i am unable to mount the cd for use...
> 
> Need to know which model parisc box you have and which model CD ROM.
> 
> > i have read some where about this prblem if i am using verbose mode?
> 
> Where did you read this? (ie post a URL)
> 
> > is this correct if so 
> > how do i get round it. Thanks
> 
> 
> grant
> 




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On Mon, 2003-08-25 at 14:19, Grant Grundler wrote:
> That's not technically possible.
> PARISC firmware uses the HPA to reference specific devices (including CPU).
> 
> We can use the same CPU number as PAT PDC and call them "physical".
> But systems which don't have PAT PDC can only use arbitrary numbers
> assigned by the parisc-linux startup code. Maybe there is a way to
> make the numbers match PIM info output but I'm not sure how.

Realistically, "logical" just means we make up a numbering scheme
independent of what the HW tells us.  If the HW isn't telling us
anything, then us telling the HW is fine.

The gist of the "no more logical mappings edict" is that basically we
only have one source for CPU numbers (and it can be sparse) rather than
two, one of which was usually compact.

James





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On Mon, Aug 25, 2003 at 08:38:34PM +0100, mmogenius@v8fiesta.co.uk wrote:
> I have a hp visualise b2000 and i am using debian 3.0 (woody)

ok. This sounds like a known problem with the Debian 3.0r0
install CDs. Did a Debian 3.0r1 installer ever get made?

If not, the alternative is to try the more recent net-install ISOs.
"net install" just means the system has to have access to a Debian
mirror via LAN. Still need to burn and boot from CD.

URLs to "net install ISOs" are on the www.parisc-linux.org web page.

hth,
grant


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On Mon, Aug 25, 2003 at 01:50:42PM -0600, Grant Grundler wrote:
> URLs to "net install ISOs" are on the www.parisc-linux.org web page.

The link points to:
	ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/

But newer images (2.4.21-pa9 kernel based) are on:
	http://pateam.esiee.fr/cd-images/testing/

is the "rsync" broken?
Can someone from ESIEE fix that?
(not urgent)

thanks,
grant


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ΪӢģҵվ
------------------------
ҪԻƣģ档
 վչܹӦҵ޷չҪ
 к̨ܣվɺ󣬽Լ¹
-----------------------------
˾Ϊվ¹ܣ

 1.Ʒչʾ-չʾĲƷͼĲï༶̨࣬
 2.̵-ͻֱѡĲƷ̵һ
 3.Ʒ-ͻͨƷơ𡢹ؼʵȲĲƷ
 4.ͻ-ԲͬͻԱɽзּȨޡ
 5.Ʒ-ͻֱ¶ĲƷ
 6.ͻ-ͻֱϸԣ
 7.ŷ-ֱӷ˾š֪ͨϢȡ
 8.Ա-Ϊⲿ̳ҲΪ˾ڲԱͨƽ̨
 9.ϵ-趨κ⣬ͻԱ˽˽顣
10.ʼб-ռͻϣͻϢ
11.Ϻؿ-Ҫգͻ;ؿǿͻĸ顣
12.ҵʾ-վͬҵʾ֣ҵĶ
13.̨-ϹܣԼƹרҵԱ

ҲԴ5Уѡһʺ˾վ?
-----------------------------
(һ) ҵվ(Ӣ)

 11
 2100ռ䣻
 3վƣ
 41Ӣվӭҳ
 51վҳ
 61Ӣվҳ                    
 75վҳ
 85Ӣվҳ
 9վӢվ
10Gifťͣť
11LogoGif
12BannerGif
13վԶڸ2(Ӣ)
14ӭҳ߼1ף
15õտͻ;
16άվ1ꣻ
17ƽÿ¸վ2ҳΡ
--------------------------
() ׼ҵվ(Ӣ)

 11
 2120ռ䣻
 31ҵͬ䣻
 4վƣ
 51Ӣվӭҳ
 61վҳ
 71Ӣվҳ                   
 810վҳ       
 910Ӣվҳ
10Gifťͣť
11Flash1
12LogoGif
13Banner̬
14Ч1
15վӢվ
16վԶڸ2(Ӣ)
17ӭҳ߼1ף
18õտͻԣ
19ЧͼƬӢĹ2
20ĻӢĹ2
21άվ1ꣻ
22ƽÿ¸վ4ҳΣ
---------------------------
() ҵվ(Ӣ)

 11
 2150ռ䣻
 35ҵͬ䣻
 4Ӣվƣ
 51Ӣվӭҳ
 61վҳ
 720վҳ
 8վӢվ
 91Ӣվҳ
1020Ӣվҳ
11Gifťͣť̬ť
12Flash2
13Ƶ1
14Ч1
15LogoGif
16Banner̬
17̬1
18վԶڸ2(Ӣ)
19ҳ߼
20ݿտͻ
21ЧͼƬӢĹ4
22ЧҳӢĹ2
23Ļ棨šţӢĹ4
24άվ1ꣻ
25ƽÿ¸վ8ҳΣ
26ҪԼάѵ1ܣ1ס
---------------------------
() ҵվ(Ӣ)

 11
 2200ռ䣻
 310ҵͬ䣻
 4Ӣվƣ
 51Ӣվӭҳ
 61վҳ
 740վҳ
 8վӢվ
 91Ӣվҳ
1040Ӣվҳ
11Gifťͣť̬ť
12Flash4
13Ƶ2
14Ч1
15ҳ1
16LogoGif
17Banner̬
18̬2
19վԶڸ2(Ӣ)
20ҳ߼
21άվ1ꣻ
22ЧͼƬӢĹ6
23ЧҳӢĹ4
24ݿտͻԣ
25Ļ棨šţӢĹ6
26ݿտͻ
27ݿƷ
28ƽÿ¸վ16ҳΣ
29ҪԼάѵ2ܣ2ס
30óƵ--óƵͨ1ס
---------------------------
() ҵվ(Ӣ)

 11
 2300ռ䣻
 320ҵͬ䣻
 4Ӣվƣ
 51Ӣվӭҳ
 61վҳ
 780վҳ
 8վӢվ
 91Ӣվҳ
1080Ӣվҳ
11Gifťͣť̬ť
12Flash8
13Ƶ3
14Ч2
15ҳ2
16LogoGif
17Banner̬
18̬3
19ĿҳӢĿҳ
20վԶڸ2(Ӣ)
21ҳ߼
22ͻ԰2(Ӣ)
23ݿտͻԣ
24Ļ棨šţӢĹ8
25ЧͼƬӢĹ8
26ЧҳӢĹ6
27ݿտͻԡͻ
28ݿԱ
29ʼбռÿʼַ͹棻
30ݿƷ
31άվ1ꣻ
32ƽÿ¸վ32ҳΣ
33ҪԼάѵ3ܣ3ף
34óƵ--óҵͨ1ס
--------------------------- 
˾һҴóҵ"Ӧо""繤̽""ýӰӶ
"רҵ˾רΪҹó˾ҵּ
ӦϵͳվԼҵýӰӶƬ

˾ڹóٻֺ֧֯£ɹԭ֤
ϵͳóƵͨóҵͨϵóӦ
ƷܵóҵĻӭ    

ͬʱҵϵ˾ŷ塢ձ
ǵȵʮҲɹ̡СԼõĺ
ϵȥһ࣬˾Ѱɹڹҵʵ
ڲƷٳɶڳóס
 -----------------------------
˾г޹˾
ַмô԰6¥9E
绰020-85580234ת19 
ֻ13710685240
棺020-85581405
䣺gd333@163.com
-----------------------------



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ΪӢģҵվ
------------------------
ҪԻƣģ档
 վչܹӦҵ޷չҪ
 к̨ܣվɺ󣬽Լ¹
-----------------------------
˾Ϊվ¹ܣ

 1.Ʒչʾ-չʾĲƷͼĲï༶̨࣬
 2.̵-ͻֱѡĲƷ̵һ
 3.Ʒ-ͻͨƷơ𡢹ؼʵȲĲƷ
 4.ͻ-ԲͬͻԱɽзּȨޡ
 5.Ʒ-ͻֱ¶ĲƷ
 6.ͻ-ͻֱϸԣ
 7.ŷ-ֱӷ˾š֪ͨϢȡ
 8.Ա-Ϊⲿ̳ҲΪ˾ڲԱͨƽ̨
 9.ϵ-趨κ⣬ͻԱ˽˽顣
10.ʼб-ռͻϣͻϢ
11.Ϻؿ-Ҫգͻ;ؿǿͻĸ顣
12.ҵʾ-վͬҵʾ֣ҵĶ
13.̨-ϹܣԼƹרҵԱ

ҲԴ5Уѡһʺ˾վ?
-----------------------------
(һ) ҵվ(Ӣ)

 11
 2100ռ䣻
 3վƣ
 41Ӣվӭҳ
 51վҳ
 61Ӣվҳ                    
 75վҳ
 85Ӣվҳ
 9վӢվ
10Gifťͣť
11LogoGif
12BannerGif
13վԶڸ2(Ӣ)
14ӭҳ߼1ף
15õտͻ;
16άվ1ꣻ
17ƽÿ¸վ2ҳΡ
--------------------------
() ׼ҵվ(Ӣ)

 11
 2120ռ䣻
 31ҵͬ䣻
 4վƣ
 51Ӣվӭҳ
 61վҳ
 71Ӣվҳ                   
 810վҳ       
 910Ӣվҳ
10Gifťͣť
11Flash1
12LogoGif
13Banner̬
14Ч1
15վӢվ
16վԶڸ2(Ӣ)
17ӭҳ߼1ף
18õտͻԣ
19ЧͼƬӢĹ2
20ĻӢĹ2
21άվ1ꣻ
22ƽÿ¸վ4ҳΣ
---------------------------
() ҵվ(Ӣ)

 11
 2150ռ䣻
 35ҵͬ䣻
 4Ӣվƣ
 51Ӣվӭҳ
 61վҳ
 720վҳ
 8վӢվ
 91Ӣվҳ
1020Ӣվҳ
11Gifťͣť̬ť
12Flash2
13Ƶ1
14Ч1
15LogoGif
16Banner̬
17̬1
18վԶڸ2(Ӣ)
19ҳ߼
20ݿտͻ
21ЧͼƬӢĹ4
22ЧҳӢĹ2
23Ļ棨šţӢĹ4
24άվ1ꣻ
25ƽÿ¸վ8ҳΣ
26ҪԼάѵ1ܣ1ס
---------------------------
() ҵվ(Ӣ)

 11
 2200ռ䣻
 310ҵͬ䣻
 4Ӣվƣ
 51Ӣվӭҳ
 61վҳ
 740վҳ
 8վӢվ
 91Ӣվҳ
1040Ӣվҳ
11Gifťͣť̬ť
12Flash4
13Ƶ2
14Ч1
15ҳ1
16LogoGif
17Banner̬
18̬2
19վԶڸ2(Ӣ)
20ҳ߼
21άվ1ꣻ
22ЧͼƬӢĹ6
23ЧҳӢĹ4
24ݿտͻԣ
25Ļ棨šţӢĹ6
26ݿտͻ
27ݿƷ
28ƽÿ¸վ16ҳΣ
29ҪԼάѵ2ܣ2ס
30óƵ--óƵͨ1ס
---------------------------
() ҵվ(Ӣ)

 11
 2300ռ䣻
 320ҵͬ䣻
 4Ӣվƣ
 51Ӣվӭҳ
 61վҳ
 780վҳ
 8վӢվ
 91Ӣվҳ
1080Ӣվҳ
11Gifťͣť̬ť
12Flash8
13Ƶ3
14Ч2
15ҳ2
16LogoGif
17Banner̬
18̬3
19ĿҳӢĿҳ
20վԶڸ2(Ӣ)
21ҳ߼
22ͻ԰2(Ӣ)
23ݿտͻԣ
24Ļ棨šţӢĹ8
25ЧͼƬӢĹ8
26ЧҳӢĹ6
27ݿտͻԡͻ
28ݿԱ
29ʼбռÿʼַ͹棻
30ݿƷ
31άվ1ꣻ
32ƽÿ¸վ32ҳΣ
33ҪԼάѵ3ܣ3ף
34óƵ--óҵͨ1ס
--------------------------- 
˾һҴóҵ"Ӧо""繤̽""ýӰӶ
"רҵ˾רΪҹó˾ҵּ
ӦϵͳվԼҵýӰӶƬ

˾ڹóٻֺ֧֯£ɹԭ֤
ϵͳóƵͨóҵͨϵóӦ
ƷܵóҵĻӭ    

ͬʱҵϵ˾ŷ塢ձ
ǵȵʮҲɹ̡СԼõĺ
ϵȥһ࣬˾Ѱɹڹҵʵ
ڲƷٳɶڳóס
 -----------------------------
˾г޹˾
ַмô԰6¥9E
绰020-85580234ת19 
ֻ13710685240
棺020-85581405
䣺gd333@163.com
-----------------------------



From - Thu Nov 08 21:28:58 2018
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From: "Joel Soete" <jsoe0708@tiscali.be>
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Subject: Re: [parisc-linux] CD Not Mounted
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To: "Grant Grundler" <grundler@parisc-linux.org>,
	mmogenius@v8fiesta.co.uk
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> 
>> 
>> On Mon, Aug 25, 2003 at 08:38:34PM +0100, mmogenius@v8fiesta.co.uk wrote:
>> I have a hp visualise b2000 and i am using debian 3.0 (woody)
>
>ok. This sounds like a known problem with the Debian 3.0r0
>install CDs. Did a Debian 3.0r1 installer ever get made?
>
You have right, the pb is well known and afaik not yet resolved: it seems
that pdc console and ide cdrom are not compatible (so have to install via
net-install or an external scsi drive if you have an additional scsi card.
then build your own kernel to access ide-cdrom). The system boot but early
hang on cd initialisation (the green led lighted continiously)

Excepted this detail, the b2k is a very interesting model with cpu PA8600
400Mhz :) and run kernel as well 32bits as 64bits :)) 

hth,
    Joel


-------------------------------------------------------------------------
Tiscali ADSL, seulement 35 eur/mois et le modem est inclus...abonnez-vous!
http://reg.tiscali.be/default.asp?lg=fr 




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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH-2.6] Fix gsc_ps2.c for german keyboards
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Hi!

This little patch cures my keyboard. In the 2.4.x -> 2.6.x transition,
my key containing '<', '>' and '|' stopped working. Here it is again
(cut'n'pasting those three letters isn't really going to work on a Linux
system all the time:)

Please apply this to CVS:


--- linux-parisc-2.6/drivers/input/misc/gsc_ps2.c	2003-08-25 17:32:20.00000=
0000 +0200
+++ pa-build/drivers/input/misc/gsc_ps2.c	2003-08-25 18:41:24.000000000 +02=
00
@@ -154,7 +154,7 @@
 	/* 48 */  KBD_UNKNOWN,  KEY_DOT,       KEY_SLASH,     KEY_L,         KEY_=
SEMICOLON, KEY_P,        KEY_MINUS,     KBD_UNKNOWN,
 	/* 50 */  KBD_UNKNOWN,  KBD_UNKNOWN,   KEY_APOSTROPHE,KBD_UNKNOWN,   KEY_=
LEFTBRACE, KEY_EQUAL,    KBD_UNKNOWN,   KBD_UNKNOWN,
 	/* 58 */  KEY_CAPSLOCK, KEY_RIGHTSHIFT,KEY_ENTER,     KEY_RIGHTBRACE,KBD_=
UNKNOWN,   KEY_BACKSLASH,KBD_UNKNOWN,   KBD_UNKNOWN,
-	/* 60 */  KBD_UNKNOWN,  KBD_UNKNOWN,   KBD_UNKNOWN,   KBD_UNKNOWN,   KBD_=
UNKNOWN,   KBD_UNKNOWN,  KEY_BACKSPACE, KBD_UNKNOWN,
+	/* 60 */  KBD_UNKNOWN,  KEY_102ND,     KBD_UNKNOWN,   KBD_UNKNOWN,   KBD_=
UNKNOWN,   KBD_UNKNOWN,  KEY_BACKSPACE, KBD_UNKNOWN,
 	/* 68 */  KBD_UNKNOWN,  KEY_KP1,       KBD_UNKNOWN,   KEY_KP4,       KEY_=
KP7,       KBD_UNKNOWN,  KBD_UNKNOWN,   KBD_UNKNOWN,
 	/* 70 */  KEY_KP0,      KEY_KPDOT,     KEY_KP2,       KEY_KP5,       KEY_=
KP6,       KEY_KP8,      KEY_ESC,       KEY_NUMLOCK,
 	/* 78 */  KEY_F11,      KEY_KPPLUS,    KEY_KP3,       KEY_KPMINUS,   KEY_=
KPASTERISK,KEY_KP9,      KEY_SCROLLLOCK,KEY_103RD,


Thanks, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

--gatW/ieO32f1wygP
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Subject: Re: [parisc-linux] [PATCH-2.6] Fix gsc_ps2.c for german keyboards
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Xref: news.gmane.org gmane.linux.ports.parisc:19348

On Tue, Aug 26, 2003 at 08:58:49AM +0200, Jan-Benedict Glaw wrote:
> This little patch cures my keyboard. In the 2.4.x -> 2.6.x transition,
> my key containing '<', '>' and '|' stopped working. Here it is again
> (cut'n'pasting those three letters isn't really going to work on a Linux
> system all the time:)
> 
> Please apply this to CVS:

Done.  Thanks!

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] C3000 and IDE DMA support
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Xref: news.gmane.org gmane.linux.ports.parisc:19349

Hi all,

I win a as experimenting mood so I put in a Seagate ST3120022A (120GB, UDMA)
into my C3000 (no floppy, no CDROM). I use the original cable that came with
the C3k (intended for the CDROM), since I sincerely doubt that the IDE
chipset supports UDMA anyway. I just have one ext3 partition on it (111GB).


I have the following problems:

- the hard disk performs very bad (just 3.13 MB/s instead of expected
  >30 MB/s, tested with similar drive in PC and same hdparm settings)
  In fact it shows typical data rates for unsupported DMA transfers
- excessive harddisk access, ie. copying large files (>1GB) obviously
  blocks any other access to the harddisk, at least it's not (very) responsive
  (caused by the slow transfer rate?)
- can't change from my default kernel setting (DMA) to PIO mode via hdparm,
  it causes a kernel oops (but hey, who needs PIO anyway ;)


Apart from the slowlyness of the drive it works quite well.



my .config contains:

CONFIG_BLK_DEV_IDE=y
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_BLK_DEV_NS87415=y
CONFIG_IDEDMA_AUTO=y
CONFIG_BLK_DEV_IDE_MODES=y



I enable IDE DMA for hda as follows:

> hdparm -c 1 -d 1 -u 1 /dev/hda


dmesg shows:
============

Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
NS87415: IDE controller at PCI slot 00:0e.0
NS87415: chipset revision 3
NS87415: not 100%% native mode: will probe irqs later
    ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:pio, hdd:pio
hda: ST3120022A, ATA DISK drive
blk: queue 103c1608, I/O limit 4095Mb (mask 0xffffffff)
ide0 at 0x1f0-0x1f7,0x3f6 on irq 103
hda: attached ide-disk driver.
hda: host protected area => 1
hda: 234441648 sectors (120034 MB) w/2048KiB Cache, CHS=14593/255/63, (U)DMA
Partition check:
 hda: hda1


Is unmasq_irq supported? What about DMA? Is it obviously not fixed yet
(at least somebody wrote that "ns87415 dma doesn't work reliably on
 suckyio-systems" a couple of weeks back)


Any hints how to speed up the transfer rate?


Thanks,
   Max


PS: I have problems with Samba-2.2.3 and 3.0.0 when transferring
multiple 1GB files from an XP box to the samba share (the IDE harddisk):
samba disconnects after transferring 2x 1GB files, but will copy many
smaller files (several MB) just fine (although combined >>2GB).

It might be the case that the IDE hard disk is too slow (3MB/s) for my
100Mbit FDX ethernet (4-5MB/s) and thus confuses samba ...

Samba-3.0.0 also seems to be a little bit "laggy" when I try to access a
share (or any of it's files); there is always a delay for about 1-2s for
each read access to a file ... but it's a beta version anyway and this
issue should be better discussed on lists.debian.org



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Xref: news.gmane.org gmane.linux.ports.parisc:19350

... sorry for the collection of typos in my last mail, but the network
connection in our university is VERY bad lately (probably due to the virus
attacks). I was disconnected 11 times from the mail servere while writing
the last mail :(

Apologies,
  Max



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Xref: news.gmane.org gmane.linux.ports.parisc:19351

Hi all,

Here is a small but anoying pb with serial console.

>From a minicom serial connect here is the nice "boot" Debian banner I can
grab when I booted with 2.4.21:

[...]
Starting periodic command scheduler: cron.

                               
         _sudZUZ#Z#XZo=_         DDDD   EEEEEE BBBB   IIIIII  AAAA   NN 
 NN
      _jmZZ2!!~---~!!X##wa       DD DD  EE     BB BB    II   AA  AA  NNN
 NN
   .<wdP~~            -!YZL,     DD  DD EEEEE  BBBBB    II   AAAAAA  NNNN
NN
  .mX2'       _%aaa__     XZ[.   DD DD  EE     BB  BB   II   AA  AA  NN NNNN
  oZ[      _jdXY!~?S#wa   ]Xb;   DDDD   EEEEEE BBBBB  IIIIII AA  AA  NN 
 NN
 _#e'     .]X2(     ~Xw|  )XXc 
.2Z`      ]X[.       xY|  ]oZ(   Linux Version 2.4.21-pa4
.2#;      )3k;     _s!~   jXf`   Compiled #3 Mon Jul 14 12:00:08 CEST 2003
 1Z>      -]Xb/    ~    __#2(    One 400MHz HPPA Kazoo W+ Processor, 256M
RAM
 -Zo;       +!4ZwaaaauZZXY'      799.53 Bogomips Total
  *#[,        ~-?!!!!!!-~        palx2000
   XUb;.                       
    )YXL,,                     
      +3#bc,                   
        -)SSL,,                
           ~~~~~               
Updating the Linuxlogo... done.
Stopping Bootlog daemon: bootlogd.
[...]

Normal :)

Now with 2.4.22-pa1 (with exactly the same context excepted kernel):
[...]
Linux palx2000 2.4.22-pa1 #1 Tue Aug 26 13:40:01 CEST 2003 parisc GNU/Linux

Starting periodic command scheduler: cron.

                               
         _sudZUZ#Z#XZo=_         DDDD   EEEEEE BBBB   IIIIII  AAAA   NN 
 NN
      _jmZZ2!!~---~!!X##wa       DD DD  EE     BB BB    II   AA  AA  NNN
 NN
   .<wdP~~            -!YZL,     DD  DD EEEEE  BBBBB    II   AAAAAA  NNNN
NN
  .mX2'       _%aaa__     XZ[.   DD DD  EE     BB  BB   II   AA  AA  NN NNNN
Debian GNU/Linux testing/unstable palx2000 ttyS0

Any Idea?

Thanks in advance,
    Joel



-------------------------------------------------------------------------
Tiscali ADSL, seulement 35 eur/mois et le modem est inclus...abonnez-vous!
http://reg.tiscali.be/default.asp?lg=fr 




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does x support the internal video card in the machine ?

thanks to you help on previous questions i now have everything installed and i 
am a complete newbie... 

Thanks





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In reference to a message from mmogenius@v8fiesta.co.uk, dated Aug 26:
> does x support the internal video card in the machine ?

http://pateam.esiee.fr/list.html

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> - the hard disk performs very bad (just 3.13 MB/s instead of expected
>   >30 MB/s, tested with similar drive in PC and same hdparm settings)
>   In fact it shows typical data rates for unsupported DMA transfers

You are right, DMA is not yet supported on superio... at some point it
was sort of working, but not very reliably... 

it's a worthwhile project if you want to do some kernel hacking :-)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Mon, 25 Aug 2003 13:57:55 -0600
Grant Grundler <grundler@parisc-linux.org> wrote:

> On Mon, Aug 25, 2003 at 01:50:42PM -0600, Grant Grundler wrote:
> > URLs to "net install ISOs" are on the www.parisc-linux.org web page.
> 
> The link points to:
> 	ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/
> 
> But newer images (2.4.21-pa9 kernel based) are on:
> 	http://pateam.esiee.fr/cd-images/testing/
> 
> is the "rsync" broken?
> Can someone from ESIEE fix that?
> (not urgent)

There is no "rsync"... I have to do it by hand and that's getting me
pretty bored, so I guess this would have to be scripted at some point. If
any master on dsl2 has any idea about how to do it i'd owe him a beer :P

BTW, i'll upload last image (-pa13 iirc) on both pateam and dsl2 as soon
as i'll get my lab powered back (upon tomorrow if everything goes fine).


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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(please reply to the list, not to me privately)

In reference to a message from mmogenius@v8fiesta.co.uk, dated Aug 26:
> do we know if it is possable to add an extra graphics card to the b2000 to 
> usin instead of the internal card ?

the web page tells you that if you get a Vis-EG card it will work. there
are no "built in" graphics cards..  if you have a FX? card in your b2k,
it's a PCI card. (lspci should tell you)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Earlier today I moved linux to linux-2.4 and set a compatibility symlink
so everything will work for the moment.  I've updated the web pages
with instructions to use linux-2.4 instead.  In the build-tools module,
you'll now find a little shell script that moves your checkout from linux
to linux-2.4.  Please run it as soon as convenient.

I intend to remove the `linux' symlink in a week's time.  At that point
any unconverted repositories will stop working.

Any problems, let me know.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi all,

I just installed printtool on my b180 to print on a network connected printer
of model hp laserjet 4mv. Printtool inform me that:
"This printer uses a Postscript Printer Description (PPD) file called HP_LaserJet_4MV.ppd,
available from printer vendor. This file should be installed in the /usr/share/postscript/ppd/
directory."

Unfortunately I don't reach to find back install cd and google don't find
any reference to this file. Is somebody could help me?

Thanks in advance,
    joel

-------------------------------------------------------------------------
Tiscali ADSL, seulement 35 eur/mois et le modem est inclus...abonnez-vous!
http://reg.tiscali.be/default.asp?lg=fr 




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> I just installed printtool on my b180 to print on a network connected printer
> of model hp laserjet 4mv. Printtool inform me that:
> "This printer uses a Postscript Printer Description (PPD) file called HP_LaserJet_4MV.ppd,
> available from printer vendor. This file should be installed in the /usr/share/postscript/ppd/
> directory."
> 
> Unfortunately I don't reach to find back install cd and google don't find
> any reference to this file. Is somebody could help me?

there are a bunch at
http://www.earthsci.unibe.ch/people/kronenbe/support/printing/adobe-ps.ppd/

hplj4mv1.ppd might be the one you want.

HTH,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>there are a bunch at
>
>> http://www.earthsci.unibe.ch/people/kronenbe/support/printing/adobe-ps.ppd/
>
>hplj4mv1.ppd might be the one you want.
>
That seems to works fine :)

Thanks a lot Randolph,
    Joel


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> Realistically, "logical" just means we make up a numbering scheme
> independent of what the HW tells us.  If the HW isn't telling us
> anything, then us telling the HW is fine.
> 
> The gist of the "no more logical mappings edict" is that basically we
> only have one source for CPU numbers (and it can be sparse) rather than
> two, one of which was usually compact.

I sense a Monty Python skit about '0 CPUs found' :)

HW: So how many we got today?
SW: Oh, zero.
HW: Zero?!
SW: Yeah, zaro CPU's found.
HW: Do you have an accent?
...

c.


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> In the build-tools module, you'll now find a little shell
> script that moves your checkout from linux
> to linux-2.4.  Please run it as soon as convenient.

Thanks a lot it works fine (just apply script and update: nice)

joel


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>> 
>The additional CPUs just reference (ie load) the shared data using
>the same address. AFAIK, a cacheline will get loaded as "shared clean"
>until someone writes to it - which is when the cacheline ping-pong
>starts.

Ok I will have to re-read and again and again (each world is very important
in this book all short-cut is fatal for a good understanding)

>> Can you tell me more: in a previous piminfo collected I got for CPU#3
(3
>> is the "address" of the second cpu)

>PAT PDC (L-/N-class and A500) have hard coded numbers for CPUs.
>parisc-linux only uses logical CPU numbers to avoid sparsely populated
>arrays. parisc-linux can get the  "Physical CPU #" from PAT PDC.
>See code inside USE_PAT_CPUID in arch/parisc/kernel/processor.c.
>You might hack that code a bit so you can correlate logic to physical
>CPU numbers.

(I would do so later), I mean i would like to find the 'psw' value in a piminfo
listing (whatever the form it is: oct, hex, bin) to learn more about cpu
status at the panic moment (sorry for confusion but English is not my mother
tongue and frequently i still have pb to make understand my thought:) )

Thanks again,
    Joel
 

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On Tue, Aug 26, 2003 at 09:29:35PM +0300, Martin-ric Racine wrote:
> Greetings,
> 
> Having just tried kernel 2.6 (the release candidate found in unstable) on i386,
> I found it to bring a _tremendous_ improvement in responsiveness and especially
> in userspace stuff like XFree. Given how this 712 is the slowest machine in my
> LAN, I was wondering if any work is being done on 2.6 for hppa and when is the
> first release expected?  Thanks!

-> parisc-linux.org where we have 2.6.0-test4.
When might there be a debian package for it?  Don't know, not my department.
But the -pa patch is a tiny fraction of the size of the 2.4 patch, so it'll
be much easier for everyone.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Tue, 26 Aug 2003 21:03:54 +0100
Matthew Wilcox <willy@debian.org> wrote:

> On Tue, Aug 26, 2003 at 09:29:35PM +0300, Martin-=C9ric Racine wrote:
> > Greetings,
> >=20
> > Having just tried kernel 2.6 (the release candidate found in unstable)
> > on i386, I found it to bring a _tremendous_ improvement in
> > responsiveness and especially in userspace stuff like XFree. Given how
> > this 712 is the slowest machine in my LAN, I was wondering if any work
> > is being done on 2.6 for hppa and when is the first release expected?=20
> > Thanks!
>=20
> -> parisc-linux.org where we have 2.6.0-test4.
> When might there be a debian package for it?  Don't know, not my
> department.

If it was up to me i guess it wouldn't take much time. I have to discuss
that with either you and bdale, to state *how* we want it done...

Anyway, let me remind you that as for generating 2.6 netinsts, i _do_ need
arch/parisc/debian-configs/* files to provide you with a 2.6 package.

Since i'm not willing to find out by myself what we want and what we don't
want in 2.6 "debian stock" kernel configs (that's a matter for the b-f
maintainer i guess, or maybe my kernel package mentor - aka bdale - has
some ideas about it ;), i won't be able to do anything _prior_ to these
files appearance in our CVS tree...

> But the -pa patch is a tiny fraction of the size of the 2.4 patch, so
> it'll be much easier for everyone.

that's for sure!

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

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i have a c180 visualize that is just taking up space. if a developer
would like it, it's free. just the cost of shipping. or could be picked
up in glendale california.

c180 2.1G scsi drive, 4x plextor cdrom (internal and NOT OEM), 256M
memory. vga graphics card and z buffer. i forget the card number. X
works though. base install of debian is on it now.

if you need more details contact me off list at jmd5@earthlink.net.

figure shipping costs from 91201 and 50 lbs. (its heavy)

jeff duncan





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Hi Randolph,

On Tuesday, Aug 26, 2003, at 11:03 US/Eastern, Randolph Chung wrote:

> In reference to a message from mmogenius@v8fiesta.co.uk, dated Aug 26:
>> do we know if it is possable to add an extra graphics card to the 
>> b2000 to
>> usin instead of the internal card ?
>
> the web page tells you that if you get a Vis-EG card it will work. 
> there
> are no "built in" graphics cards..  if you have a FX? card in your b2k,
> it's a PCI card. (lspci should tell you)

The B2000 does have integrated graphics. It is an FX-e.

-chuck



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On Tue, Aug 26, 2003 at 09:30:23PM -0400, Chuck Slivkoff wrote:
> The B2000 does have integrated graphics. It is an FX-e.

"integrated" != "soldered on the motherboard"
"built-in"   ~= "soldered on the motherboard"

ie The Gfx card can be removed and in fact must be remove if one wants
to use the only 66mhz/64-bit PCI slot the B2000/C3000 has.

AFAIK, the B2000/C3000/J5000 systems only have plug-in PCI gfx cards.
At least all the ones I've seen are plug-in.

grant


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On Tuesday, Aug 26, 2003, at 23:40 US/Eastern, Grant Grundler wrote:

> On Tue, Aug 26, 2003 at 09:30:23PM -0400, Chuck Slivkoff wrote:
>> The B2000 does have integrated graphics. It is an FX-e.
>
> "integrated" != "soldered on the motherboard"
> "built-in"   ~= "soldered on the motherboard"

I've always used these interchangably.

> ie The Gfx card can be removed and in fact must be remove if one wants
> to use the only 66mhz/64-bit PCI slot the B2000/C3000 has.
>
> AFAIK, the B2000/C3000/J5000 systems only have plug-in PCI gfx cards.
> At least all the ones I've seen are plug-in.

The B2000 is an exception. I participated in the Field Review of this  
box ("Kazoo", IIRC) & we have one of these in our lab in Roseville.  
This box was considered a "cheap" alternative to a C3000 with a smaller  
power supply, fewer PCI slots, fewer DIMM slots and integrated (see  
below) graphics. The FX-e is soldered on the motherboard.

 From pg 23 of the B2000 the Owner's Guide:

   Monitor Connector
   The B2000 workstation has an integrated HP VISUALIZE fxe graphics
   chip on the system board. Thus, the monitor connector on the rear  
panel
   of the workstation connects your monitor to this graphics chip on the
   system board.

http://h20000.www2.hp.com/bizsupport/ 
CoreRedirect.jsp?targetPage=http%3A%2F%2Fh200007.www2.hp.com%2Fbc%2Fdocs 
%2Fsupport%2FSupportManual%2Flpv37670%2Flpv37670.pdf



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On Wed, Aug 27, 2003 at 01:00:59AM -0400, Chuck Slivkoff wrote:
> >"integrated" != "soldered on the motherboard"
> >"built-in"   ~= "soldered on the motherboard"
> 
> I've always used these interchangably.

I normally would too.
I don't anymore for HP products since hearing "factory integration"
regarding plug-in PCI cards.

> The B2000 is an exception. I participated in the Field Review of this  
> box ("Kazoo", IIRC) & we have one of these in our lab in Roseville.  
> This box was considered a "cheap" alternative to a C3000 with a smaller  
> power supply, fewer PCI slots, fewer DIMM slots and integrated (see  
> below) graphics. The FX-e is soldered on the motherboard.

ok - thanks - I've seen the fewer DIMM slots version but didn't
notice the FX-e on the motherboard (or VGA connector on the back).

I have seen a B2000 with 8 DIMM slots and 6 PCI slots like a C3000.
This is no prototype - a real production unit.
I'll have a chance to look more closely at this box again
in the near future and will take some pictures.

thanks for the correction,
grant


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On Wed, 27 Aug 2003 00:05:16 -0600
Grant Grundler <grundler@parisc-linux.org> wrote:

 
> ok - thanks - I've seen the fewer DIMM slots version but didn't
> notice the FX-e on the motherboard (or VGA connector on the back).
> 
> I have seen a B2000 with 8 DIMM slots and 6 PCI slots like a C3000.
> This is no prototype - a real production unit.
> I'll have a chance to look more closely at this box again
> in the near future and will take some pictures.
> 

Don't bother, we've got plenty of these boxes @school, I'll take some pics
before students come back ;)


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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Quoting Thibaut VARENE <varenet@esiee.fr>:

> On Wed, 27 Aug 2003 00:05:16 -0600
> Grant Grundler <grundler@parisc-linux.org> wrote:
> 
>  
> > ok - thanks - I've seen the fewer DIMM slots version but didn't
> > notice the FX-e on the motherboard (or VGA connector on the back).
> > 
> > I have seen a B2000 with 8 DIMM slots and 6 PCI slots like a C3000.
> > This is no prototype - a real production unit.
> > I'll have a chance to look more closely at this box again
> > in the near future and will take some pictures.
> > 
> 
> Don't bother, we've got plenty of these boxes @school, I'll take some pics
> before students come back ;)
> 
> 
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://pateam.esiee.fr/
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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On Maw, 2003-08-26 at 12:46, M. Grabert wrote:
> - the hard disk performs very bad (just 3.13 MB/s instead of expected
>   >30 MB/s, tested with similar drive in PC and same hdparm settings)
>   In fact it shows typical data rates for unsupported DMA transfers

Your drive is in PIO, probably PIO3 or so.

> - excessive harddisk access, ie. copying large files (>1GB) obviously
>   blocks any other access to the harddisk, at least it's not (very) responsive
>   (caused by the slow transfer rate?)

Hard to tell

> - can't change from my default kernel setting (DMA) to PIO mode via hdparm,
>   it causes a kernel oops (but hey, who needs PIO anyway ;)

That would be a bug

> Is unmasq_irq supported? What about DMA? Is it obviously not fixed yet
> (at least somebody wrote that "ns87415 dma doesn't work reliably on
>  suckyio-systems" a couple of weeks back)

irq unmasking is a generic IDE property so should be fine on any
platform with a non prehistoric defunct controller (NS87415 is fine)

> Any hints how to speed up the transfer rate?

Buy a PC ;)

Basically you need to fix DMA support



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On 27 Aug 2003, Alan Cox wrote:

> On Maw, 2003-08-26 at 12:46, M. Grabert wrote:
> > - the hard disk performs very bad (just 3.13 MB/s instead of expected
> >   >30 MB/s, tested with similar drive in PC and same hdparm settings)
> >   In fact it shows typical data rates for unsupported DMA transfers
>
> Your drive is in PIO, probably PIO3 or so.

beast:/home/xam# hdparm -i /dev/hda

/dev/hda:

 Model=ST3120022A, FwRev=3.06, SerialNo=5JT04M42
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=4228907259, LBA=yes, LBAsects=234441648
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4
 DMA modes:  mdma0 mdma1 *mdma2
 UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5
 AdvancedPM=no WriteCache=enabled
 Drive conforms to: ATA/ATAPI-6 T13 1410D revision 2:  1 2 3 4 5 6


Mhh, also "hdparm -d" shows that the "DMA mode" of the hard disk is
"enabled", but I really have the feeling it isn't.


[...]

> > Is unmasq_irq supported? What about DMA? Is it obviously not fixed yet
> > (at least somebody wrote that "ns87415 dma doesn't work reliably on
> >  suckyio-systems" a couple of weeks back)
>
> irq unmasking is a generic IDE property so should be fine on any
> platform with a non prehistoric defunct controller (NS87415 is fine)
>
> > Any hints how to speed up the transfer rate?
>
> Buy a PC ;)

Close ;)
Bought a IDE controller (Silicon Image Sil680) for EUR 15 ...

Hope it works, since I need a quick solution because this machine is used
as a WLAN Bridge/DNS cache/DHCP server/DSL router/Fire server in our house.

> Basically you need to fix DMA support

If I have/had time besides my PhD ... moreover I still have to little
knowledge about IDE stuff and kernel hacking to help.
I think you know the feeling since you're taking a sabbatical to do a MBA ;)

I'm just good at AI stuff (PhD) and parallel computing (former job & hobby).

Anyway, I try to help by testing and experimenting with new kernels
and telling what obvious mistakes I found and what's not running.
I.e. I don't intend to complain but help with what I report.
So far I'm quite happy with the stability of Linux/PA-RISC, so I've
really no reason to complain (rather the opposite: thank you!).


Slan,
  Max



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Interesting the veriety iof the same box :-O. I can only find one 
specification on hp's site for the b2000...

so the basics of it is can the b2000 support an additional vga card other then 
the onboard graphics card ? presumabely i need a card that is compatable with 
the box rather then any old card off the shelf ?

of is there more likleyhood that there will be support for this card in x ?

Thanks

Quoting mmogenius@v8fiesta.co.uk:

> Quoting Thibaut VARENE <varenet@esiee.fr>:
> 
> > On Wed, 27 Aug 2003 00:05:16 -0600
> > Grant Grundler <grundler@parisc-linux.org> wrote:
> > 
> >  
> > > ok - thanks - I've seen the fewer DIMM slots version but didn't
> > > notice the FX-e on the motherboard (or VGA connector on the back).
> > > 
> > > I have seen a B2000 with 8 DIMM slots and 6 PCI slots like a C3000.
> > > This is no prototype - a real production unit.
> > > I'll have a chance to look more closely at this box again
> > > in the near future and will take some pictures.
> > > 
> > 
> > Don't bother, we've got plenty of these boxes @school, I'll take some pics
> > before students come back ;)
> > 
> > 
> > Thibaut VARENE
> > The PA/Linux ESIEE Team
> > http://pateam.esiee.fr/
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> 
> 
> 
> 
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On Mer, 2003-08-27 at 18:36, M. Grabert wrote:
> beast:/home/xam# hdparm -i /dev/hda
>  DMA modes:  mdma0 mdma1 *mdma2

So its tuned for DMA2 (doesn't mean its not using PIO..)

> Mhh, also "hdparm -d" shows that the "DMA mode" of the hard disk is
> "enabled", but I really have the feeling it isn't.

The crash is also curious - I wonder if parisc is either bouncing
every DMA buffer and copying it for some reason, or its failing DMA
by a path other platforms don't hit which isnt cleaning up right.



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On Wed, Aug 27, 2003 at 10:23:17PM +0100, Alan Cox wrote:
> The crash is also curious - I wonder if parisc is either bouncing
> every DMA buffer and copying it for some reason,

c3000 uses sba_iommu.c and AFAIK all DMA goes through the IOMMU.
Would surprise me if the DMA was bounced/copied.

grant


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On Wed, Aug 27, 2003 at 09:19:49PM +0100, mmogenius@v8fiesta.co.uk wrote:
> so the basics of it is can the b2000 support an additional vga card
> other then the onboard graphics card?

If a PCI slot is available, I would expect a PCI Vis-EG card to work.

> presumabely i need a card that is compatable with 
> the box rather then any old card off the shelf ?

I think so.

> of is there more likleyhood that there will be support for this card in x ?

PCI Vis-EG + stifb driver works under xf86.

grant


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On Mer, 2003-08-27 at 22:44, Grant Grundler wrote:
> c3000 uses sba_iommu.c and AFAIK all DMA goes through the IOMMU.
> Would surprise me if the DMA was bounced/copied.

Nod.. I'm trying to fathom the 3Mbyte/second behaviour while hdparm
claims DMA is on



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Thanks once again

Do you prehaps know how much the card wiull cost me and where i can get one in 
the uk... 

Thanks

Quoting Grant Grundler <grundler@parisc-linux.org>:

> On Wed, Aug 27, 2003 at 09:19:49PM +0100, mmogenius@v8fiesta.co.uk wrote:
> > so the basics of it is can the b2000 support an additional vga card
> > other then the onboard graphics card?
> 
> If a PCI slot is available, I would expect a PCI Vis-EG card to work.
> 
> > presumabely i need a card that is compatable with 
> > the box rather then any old card off the shelf ?
> 
> I think so.
> 
> > of is there more likleyhood that there will be support for this card in x
> ?
> 
> PCI Vis-EG + stifb driver works under xf86.
> 
> grant
> 




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On Wed, Aug 27, 2003 at 11:22:54PM +0100, Alan Cox wrote:
> Nod.. I'm trying to fathom the 3Mbyte/second behaviour while hdparm
> claims DMA is on

I thought each PIO READ costs something like 400 or 500 cycles on c3k
(400Mhz CPU).  400/3 == 133 cycles/byte.

Either doing very slow DMA or 32-bit (4*133 == 532) reads.
Then it would make sense.

grant


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On Thu, Aug 28, 2003 at 12:05:03AM +0100, mmogenius@v8fiesta.co.uk wrote:
> do you prehaps have any idea what sort of money the card might cost me?
> and where i could find one in the uk ?

I've never had to buy one.
Check e-bay and/or HP equipment resellers on the net.

grant


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On Wed, 27 Aug 2003, Grant Grundler wrote:

> On Wed, Aug 27, 2003 at 11:22:54PM +0100, Alan Cox wrote:
> > Nod.. I'm trying to fathom the 3Mbyte/second behaviour while hdparm
> > claims DMA is on
>
> I thought each PIO READ costs something like 400 or 500 cycles on c3k
> (400Mhz CPU).  400/3 == 133 cycles/byte.
>
> Either doing very slow DMA or 32-bit (4*133 == 532) reads.
> Then it would make sense.

beast:/home/xam# hdparm -c /dev/hda

/dev/hda:
 IO_support   =  1 (32-bit)


Well, I set it to 32bit I/O, more specifically I also tried
c=0 (16bit, default), c=3 (32-bit with sync). Everytime the same:


beast:/home/xam# hdparm -Tt /dev/hda

/dev/hda:
 Timing buffer-cache reads:   128 MB in  1.80 seconds = 71.11 MB/sec
 Timing buffered disk reads:  64 MB in 20.48 seconds =  3.12 MB/sec


However switching of DMA (as I told in my previous post, 'hdparm -d 0')
will cause a kernel crash (+ dump).

I haven't tried to compile & test a kernel without DMA support (or NS87415
support)


greetings, Max




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On Thu, 28 Aug 2003 mmogenius@v8fiesta.co.uk wrote:

> Thanks once again
>
> Do you prehaps know how much the card wiull cost me and where i can get one in
> the uk...

Well, Ebay + "Visualize EG" brings up following result:

http://search.ebay.co.uk/ws/search/SaleSearch?satitle=Visualize+EG&saavailabletocountry=3&socurrencydisplay=2&ebaytag1code_tmp=3&ebaytag1_tmp=ebayavail&sosortproperty=1&ht=1&from=R10&sorecordsperpage=50&BasicSearch=

All of these three offers are currently below 10 Pound,
but international shipping is quite expensive (one offer says US $25).

I'd say go for it anyway.


Max



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>
>Now that I find what seems reasonable parameters (?) I would try to reboot
>the system tomorrow morning and relaunch test with itlb patch (just to confirm
>results).
>
Same results (definitively the test to show up this improvement, may be another
workfile?)

Joel


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On Wednesday, Aug 27, 2003, at 02:05 US/Eastern, Grant Grundler wrote:

> I have seen a B2000 with 8 DIMM slots and 6 PCI slots like a C3000.
> This is no prototype - a real production unit.

Sounds like a B1000 to me. ;-) Essentially, a C3000 with a slower CPU.



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Hi Grant,

>AFAIK, a cacheline will get loaded as "shared clean"
>until someone writes to it - which is when the cacheline ping-pong
>starts.

Mhh would it not request some kind of ipc between cpu for cache management?

But to avoid usage of cache would it be possible to access global kernel's
variable with absolute addressing mode? Is it feasible?

...

btw scaning code related to SMP I find in smp.c a very draft of an 'ipi_init()'
but unfortunately 'Ignore for now. *May* need this "hook" to register IPI
handler'..., interesting isn't it :).
Is there any other platform inplementing such stuff (I try to scan 2.4 src
but not found anywhere else) or some reference on to implement it?


>PAT PDC (L-/N-class and A500) have hard coded numbers for CPUs.
>parisc-linux only uses logical CPU numbers to avoid sparsely populated
>arrays. parisc-linux can get the  "Physical CPU #" from PAT PDC.
>See code inside USE_PAT_CPUID in arch/parisc/kernel/processor.c.
>You might hack that code a bit so you can correlate logic to physical
>CPU numbers.

Ah see better now, it answers to another question.

Thanks,
    Joel




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Thanks for the link i am sure i had searched ebay but never got any results 
prehaps i was searching for items in the UK only. 

I presume not thast many people have these boxes over here and there not 
tremendiousaly popular through out ? 

i'll go for the card and get the adaptehr for a normal monitor. Thanks. 
#


Quoting "M. Grabert" <xam@cs.ucc.ie>:

> On Thu, 28 Aug 2003 mmogenius@v8fiesta.co.uk wrote:
> 
> > Thanks once again
> >
> > Do you prehaps know how much the card wiull cost me and where i can get one
> in
> > the uk...
> 
> Well, Ebay + "Visualize EG" brings up following result:
> 
> http://search.ebay.co.uk/ws/search/SaleSearch?
satitle=Visualize+EG&saavailabletocountry=3&socurrencydisplay=2&ebaytag1code_tm
p=3&ebaytag1_tmp=ebayavail&sosortproperty=1&ht=1&from=R10&sorecordsperpage=50&B
asicSearch=
> 
> All of these three offers are currently below 10 Pound,
> but international shipping is quite expensive (one offer says US $25).
> 
> I'd say go for it anyway.
> 
> 
> Max
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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On Thu, Aug 28, 2003 at 09:04:40AM +0200, Joel Soete wrote:
> Hi Grant,
> 
> >AFAIK, a cacheline will get loaded as "shared clean"
> >until someone writes to it - which is when the cacheline ping-pong
> >starts.
> 
> Mhh would it not request some kind of ipc between cpu for cache management?

no.
IIRC instructions for purging the cache are broadcast to other CPUs.

> But to avoid usage of cache would it be possible to access global kernel's
> variable with absolute addressing mode? Is it feasible?

Since the caches use virtual indices, it would make sense when using
physically addresses to bypass the cache. But I don't know if that's
really the case or not. I would expect that described in the PA2.0 Arch
book.

> btw scaning code related to SMP I find in smp.c a very draft of
> an 'ipi_init()' but unfortunately 'Ignore for now.  *May* need this
> "hook" to register IPI handler'..., interesting isn't it :).

I wrote that. ipi_init and comments can be deleted.
I haven't seen a need for ipi_init(). When I originally
implemented the SMP support I thought it might be.

The IPI handler is statically "hooked" (aka registered) in
	arch/parisc/kernel/irq.c:cpu_irq_actions[]

See ipi_interrupt() for IPI implementation.

> Is there any other platform inplementing such stuff (I try to scan 2.4 src
> but not found anywhere else) or some reference on to implement it?

it == ?
IPI is implemented.

grant


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On Thu, Aug 28, 2003 at 10:22:21AM +0100, mmogenius@v8fiesta.co.uk wrote:
> i'll go for the card and get the adaptehr for a normal monitor.

I think two of the Ebay listings have an error: AFAIK, VIz-EG cards have
an "EVC" connector and not a "DVI" connector. The two connectors look very
similar except the DVI connector has fewer pins.  Have them count pins and
verify before ordering the DVI connector.

grant


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>
>no.
>IIRC instructions for purging the cache are broadcast to other CPUs.
>
That is the first thing I would like to check (as the first signal I notice
is a itlb miss fault and the piminfo of the 2d cpu seems to show a crash
on a branch instruction [cmpb iirc], I presume that during the init of the
second cpu this last tries to access a page which was just purged by the
first.  This is also why I would like to find the psw of this second cpu
in the mentionned pimfinfo :) )

>> But to avoid usage of cache would it be possible to access global kernel's
>> variable with absolute addressing mode? Is it feasible?
>
>Since the caches use virtual indices, it would make sense when using
>physically addresses to bypass the cache. But I don't know if that's
>really the case or not. I would expect that described in the PA2.0 Arch
>book.

I don't yet browse all the book but at a first glance ldda and stda are available
(respectively load and store doubleword absolute)...

>> btw scaning cod
>>  related to SMP I find in smp.c a very draft of
>> an 'ipi_init()' but unfortunately 'Ignore for now.  *May* need this
>> "hook" to register IPI handler'..., interesting isn't it :).
>
>I wrote that. ipi_init and comments can be deleted.
>I haven't see a need for ipi_init(). When I originally
>implemented the SMP support I thought it might be.
>
>The IPI handler is statically "hooked" (aka registered) in
>	arch/parisc/kernel/irq.c:cpu_irq_actions[]
>
>See ipi_interrupt() for IPI implementation.
>
Allright (clear)
>>
>> Is there any other platform inplementing such stuff (I try to scan 2.4
src
>> but not found anywhere else) or some reference on to implement it?
>
>it == ?
>IPI is implemented.

I continue so.

BTW here is a small 2.6 back port that may be you could co safely:
--- processor.c.orig	2003-08-28 18:04:57.000000000 +0200
+++ processor.c	2003-08-28 18:08:37.000000000 +0200
@@ -370,9 +370,9 @@
 };
 
 static struct parisc_driver cpu_driver = {
-	name:		"CPU",
-	id_table:	processor_tbl,
-	probe:		processor_probe
+	.name		= "CPU",
+	.id_table	= processor_tbl,
+	.probe		= pprocessor_probe
 };
 
 /**


Many thanks again for your attention,
    Joel



-------------------------------------------------------------------------
Tiscali ADSL, seulement 35 eur/mois et le modem est inclus...abonnez-vous!
http://reg.tiscali.be/default.asp?lg=fr 



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Subject: RE: [parisc-linux] Re: [parisc-linux-cvs] linux carlos
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I haven't really been following this thread, so I don't know what
problem you're actually trying to solve, but I'd like to point out a few
aspects of the PA-RISC processor architecture.

Comments mixed with the original text, below.

 -- Jim
    HP Itanium/PA-RISC Processor Architect

> -----Original Message-----
> From: parisc-linux-admin@lists.parisc-linux.org 
> [mailto:parisc-linux-admin@lists.parisc-linux.org] On Behalf 
> Of Joel Soete
> Sent: Thursday, August 28, 2003 9:08 AM
> To: Grant Grundler
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux carlos
> 
> 
> >
> >no.
> >IIRC instructions for purging the cache are broadcast to other CPUs.

If you use fdc, fic, or pdc, then they are broadcast to other
processors, but fdce and fice are not.

> That is the first thing I would like to check (as the first 
> signal I notice
> is a itlb miss fault and the piminfo of the 2d cpu seems to 
> show a crash
> on a branch instruction [cmpb iirc], I presume that during 
> the init of the
> second cpu this last tries to access a page which was just 
> purged by the
> first.  This is also why I would like to find the psw of this 
> second cpu
> in the mentionned pimfinfo :) )
> 
> >> But to avoid usage of cache would it be possible to access 
> global kernel's
> >> variable with absolute addressing mode? Is it feasible?
> >
> >Since the caches use virtual indices, it would make sense when using
> >physically addresses to bypass the cache. But I don't know if that's
> >really the case or not. I would expect that described in the 
> PA2.0 Arch
> >book.
> 
> I don't yet browse all the book but at a first glance ldda 
> and stda are available
> (respectively load and store doubleword absolute)...

While you can use ldda and stda to access memory using absolute
(physical) addresses instead of virtual, these instructions do *not*
bypass the cache.  And because PA processors use virtually-indexed
caches, the rules for mixing virtual and absolute accesses, and have
them all remain cache-coherent, are complicated.  If you really need to
do this, then you'll have to read and understand all of Appendix F, "TLB
and Cache Control", in the PA-RISC 2.0 Architecture manual (the "Kane"
book).

> >> btw scaning cod
> >>  related to SMP I find in smp.c a very draft of
> >> an 'ipi_init()' but unfortunately 'Ignore for now.  *May* need this
> >> "hook" to register IPI handler'..., interesting isn't it :).
> >
> >I wrote that. ipi_init and comments can be deleted.
> >I haven't see a need for ipi_init(). When I originally
> >implemented the SMP support I thought it might be.
> >
> >The IPI handler is statically "hooked" (aka registered) in
> >	arch/parisc/kernel/irq.c:cpu_irq_actions[]
> >
> >See ipi_interrupt() for IPI implementation.
> >
> Allright (clear)
> >>
> >> Is there any other platform inplementing such stuff (I try 
> to scan 2.4
> src
> >> but not found anywhere else) or some reference on to implement it?
> >
> >it == ?
> >IPI is implemented.
> 
> I continue so.
> 
> BTW here is a small 2.6 back port that may be you could co safely:
> --- processor.c.orig	2003-08-28 18:04:57.000000000 +0200
> +++ processor.c	2003-08-28 18:08:37.000000000 +0200
> @@ -370,9 +370,9 @@
>  };
>  
>  static struct parisc_driver cpu_driver = {
> -	name:		"CPU",
> -	id_table:	processor_tbl,
> -	probe:		processor_probe
> +	.name		= "CPU",
> +	.id_table	= processor_tbl,
> +	.probe		= pprocessor_probe
>  };
>  
>  /**
> 
> 
> Many thanks again for your attention,
>     Joel
> 
> 
> 
> --------------------------------------------------------------
> -----------
> Tiscali ADSL, seulement 35 eur/mois et le modem est 
> inclus...abonnez-vous!
> http://reg.tiscali.be/default.asp?lg=fr 
> 
> 
> 



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It is most definitely an EVC connector on the EG card....not DVI regardless of what the Ebay listing says.
 
derek

Grant Grundler <grundler@parisc-linux.org> wrote:
On Thu, Aug 28, 2003 at 10:22:21AM +0100, mmogenius@v8fiesta.co.uk wrote:
> i'll go for the card and get the adaptehr for a normal monitor.

I think two of the Ebay listings have an error: AFAIK, VIz-EG cards have
an "EVC" connector and not a "DVI" connector. The two connectors look very
similar except the DVI connector has fewer pins. Have them count pins and
verify before ordering the DVI connector.

grant
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<DIV>
<DIV>It is most definitely an EVC connector on the EG card....not DVI regardless of what the Ebay listing says.</DIV>
<DIV>&nbsp;</DIV>
<DIV>derek<BR><BR><B><I>Grant Grundler &lt;grundler@parisc-linux.org&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">On Thu, Aug 28, 2003 at 10:22:21AM +0100, mmogenius@v8fiesta.co.uk wrote:<BR>&gt; i'll go for the card and get the adaptehr for a normal monitor.<BR><BR>I think two of the Ebay listings have an error: AFAIK, VIz-EG cards have<BR>an "EVC" connector and not a "DVI" connector. The two connectors look very<BR>similar except the DVI connector has fewer pins. Have them count pins and<BR>verify before ordering the DVI connector.<BR><BR>grant<BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE></DIV><p><hr SIZE=1>
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Oh dear i ordered the converter but it was only 3 so what the hell i'll see 
if they will swap the converter for another.

with any luck i'll manage to get X on this box.... not critical but damn it 
would be nice. 



Quoting Derek Engelhaupt <derekengelhaupt@rocketmail.com>:

> It is most definitely an EVC connector on the EG card....not DVI regardless
> of what the Ebay listing says.
>  
> derek
> 
> Grant Grundler <grundler@parisc-linux.org> wrote:
> On Thu, Aug 28, 2003 at 10:22:21AM +0100, mmogenius@v8fiesta.co.uk wrote:
> > i'll go for the card and get the adaptehr for a normal monitor.
> 
> I think two of the Ebay listings have an error: AFAIK, VIz-EG cards have
> an "EVC" connector and not a "DVI" connector. The two connectors look very
> similar except the DVI connector has fewer pins. Have them count pins and
> verify before ordering the DVI connector.
> 
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
> ---------------------------------
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Hi Jim,

Well come :)
> I haven't really been following this thread, so I don't know what
>problem you're actually trying to solve, but I'd like to point out a few
>aspects of the PA-RISC processor architecture.
>
To be short, the pa linux kernel boot well on A model as SMP (Multiprocessor
mode) but panic on L/N model. And a pb in tlb management is suspected.

>Comments mixed with the original text, below.
>
> -- Jim
>   
>> HP Itanium/PA-RISC Processor Architect

>If you use fdc, fic, or pdc, then they are broadcast to other
>processors, but fdce and fice are not.

Thanks I will check if such a code is used.

>While you can use ldda and stda to access memory using absolute
>(physical) addresses instead of virtual, these instructions do *not*
>bypass the cache.  And because PA processors use virtually-indexed
>caches, the rules for mixing virtual and absolute accesses, and have
>them all remain cache-coherent, are complicated.  If you really need to
>do this, then you'll have to read and understand all of Appendix F, "TLB
>and Cache Control", in the PA-RISC 2.0 Architecture manual (the "Kane"
>book).

Yes, very accurate reference, but imo it is not a course on PA-RISC asm (I
mean, as a beginner, as i am, would like to find with some trial example
showing what is good and trivial errors to not commit).

Thanks for your clear comments,
    Joel


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>If you use fdc, fic, or pdc then they are broadcast to other
>processors, but fdce and fice are not.

Hi Jim and al,

I just noticed the two following loops:
flush_data_cache_local:
[...]

fdmanyloop:                                     /* Loop if LOOP >= 2 */
        ADDIB>          -1,%r31,fdmanyloop      /* Adjusted inner loop decr
*/
        fdce            0(%sr1,%arg0)
        fdce,m          %arg1(%sr1,%arg0)       /* Last fdce and addr adjust
*/
        movb,tr         %arg3,%r31,fdmanyloop   /* Re-init inner loop count
*/
        ADDIB<=,n       -1,%arg2,fdsync         /* Outer loop decr */

fdoneloop:                                      /* Loop if LOOP = 1 */
        ADDIB>          -1,%arg2,fdoneloop      /* Outer loop count decr
*/
        fdce,m          %arg1(%sr1,%arg0)       /* Fdce for one loop */

fdsync:
        syncdma
        sync
        mtsm    %r22
        bv      %r0(%r2)
        nop
        .exit

        .procend

[...]

flush_instruction_cache_local:
[...]

fimanyloop:                                     /* Loop if LOOP >= 2 */
        ADDIB>          -1,%r31,fimanyloop      /* Adjusted inner loop decr
*/
        fice            0(%sr1,%arg0)
        fice,m          %arg1(%sr1,%arg0)       /* Last fice and addr adjust
*/
        movb,tr         %arg3,%r31,fimanyloop   /* Re-init inner loop count
*/
        ADDIB<=,n       -1,%arg2,fisync         /* Outer loop decr */

fioneloop:                                      /* Loop if LOOP = 1 */
        ADDIB>          -1,%arg2,fioneloop      /* Outer loop count decr
*/
        fice,m          %arg1(%sr1,%arg0)       /* Fice for one loop */

fisync:
        sync
        bv      %r0(%r2)
        nop
        .exit

        .procend


Do you think that could be there where the pb occurs?

Thanks for advise,
    Joel

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On Fri, Aug 29, 2003 at 05:59:53PM +0200, Joel Soete wrote:
> I just noticed the two following loops:
> flush_data_cache_local:

Note the names of the routines!
ie should only be called when we know only the local CPU is touching
data that needs to be flushed. This sounds like a risky
strategy to me given prefetching can occur to page
that's mapped cacheable.

> Do you think that could be there where the pb occurs?

I don't. There are likely other problems hidden there though.

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:19400

Dave,

I will start by saying that I wasn't "fair" in just dumping the assembly
into an email, falling asleep at my keyboard at 4:30 AM and leaving it
up to you to guess what was _really_ going on :)

I'm sending this to the list so it gets recorded on archive. Our problem
right now it that we don't properly restore r19 after an __asm()
statement even if the clobber contains r19. Or rather gcc doesn't
schedule the restore to occur at the right time.

What does this mean for glibc, well it means that ld.so's first fork
corrupts the PIC register r19 aka LTP, and the subsequent import stub
for a function call fails (SIGSEGV). What is effected in glibc?
The following:
	- INTERNAL_SYSCALL (Macro syscall)
	- INLINE_SYSCALL (Macro syscall)
	- syscall(...) (C version)
	- DO_CALL (Assembly wrapper syscall)

What is not effected:
	- DO_CALL_NOERRNO
	- DO_CALL_ERRVAL
	- PSEUDO (syscall cancellation wrapper)
	
Explicitly storing and loading r19 around the syscall e.g. inside the
__asm() statement works around the problem. I do not want to have to
stw/ldw since it costs a lot in performance, we know now to look at gcc
for help. Perhaps I will use this as a temporary measure to release
glibc 2.3.2 for debian so we keep testing moving.

This problem has a number of interesting heisenbugs:
	- If the kernel decides not to scratch in r19 then you're okay.
	- If the compiler version scheduled r19 restore differently then
          you're okay.

All of these contributed to a lof of head scratching on my part. Since
things worked sometimes, on some boxes, and differently with different
compilers. Needless to say I learned a lot and poked enough other people
that we have had our mmap flush problems fixed, and our -fPIC -static
problems fixed.

See the following for expansion on both:
http://www.ussg.iu.edu/hypermail/linux/kernel/0308.2/1680.html
http://sources.redhat.com/ml/binutils/2003-08/msg00467.html

> I don't see the restore of r19 from r4.  What are the other 10 insns?
> Normally, I would have expected it before

This code is the relocated libpthread.so as viewed without symbols by
tracing through ld.so loading ex14 testcase in glibc. This code is the
beginning of the loader trying to start the child process immediately
after the last few calls in dl-runtime.c. What follows is the whole insn
stream up to the crash from the last call to fixup.

Here it is for posterity.

Breakpoint 1, 0x4100ceb0 in _dl_runtime_resolve () at dl-runtime.c:213
213               value = l->l_addr + sym->st_value;
(gdb) c 21
Will ignore next 20 crossings of breakpoint 1.  Continuing.
                                                                                           
Breakpoint 1, 0x4100ceb0 in _dl_runtime_resolve () at dl-runtime.c:213
213               value = l->l_addr + sym->st_value;
                                                   
si from here forward
                                        
0x4015e3b8:     stw rp,-14(sr0,sp)
0x4015e3bc:     stw,ma r4,40(sr0,sp)
0x4015e3c0:     stw r19,-20(sr0,sp)
0x4015e3c4:     addil 1000,r19,%r1
0x4015e3c8:     copy r1,r21
0x4015e3cc:     ldw 200(sr0,r21),r21
0x4015e3d0:     ldw 6c(sr0,r21),r22
0x4015e3d4:     cmpib,<> 0,r22,0x4015e3e8
0x4015e3d8:     addil 800,r19,%r1
                                                                                           
0x4015e3e8:     ldw 5d8(sr0,r1),r20
0x4015e3ec:     copy r20,r26
0x4015e3f0:     b,l 0x40167e30,r31
0x4015e3f4:     copy r31,rp
                                                                                           
0x40167e30:     b,l 0x40167e38,r1
0x40167e34:     addil 9f800,r1,%r1
0x40167e38:     be,n 218(sr4,r1)
                                                                                           
0x40207850:     bb,>=,n r22,1e,0x40207860
0x40207854:     depwi 0,31,2,r22
0x40207858:     ldw 4(sr0,r22),r19 <---------- r19 = 0x40020718
0x4020785c:     ldw 0(sr0,r22),r22
0x40207860:     bv r0(r22)
0x40207864:     stw rp,-18(sr0,sp)
                                                                                           
0x4000812c:     stw rp,-14(sr0,sp)
0x40008130:     stw,ma r5,40(sr0,sp)
0x40008134:     stw r4,-3c(sr0,sp)
0x40008138:     stw r3,-38(sr0,sp)
0x4000813c:     stw r19,-20(sr0,sp)
0x40008140:     ldw c(sr0,r26),r20
0x40008144:     copy r26,r3
0x40008148:     cmpib,<< 3,r20,0x40008184
0x4000814c:     ldi 16,ret0
0x40008150:     blr r20,r0
0x40008154:     nop
                                                                                           
0x40008160:     b,l 0x400081a8,r0
0x40008164:     ldw 8(sr0,r26),r20
                                                                                           
0x400081a8:     ldi 0,ret0
0x400081ac:     ldo 10(r26),r26
0x400081b0:     mfctl tr3,r5
0x400081b4:     cmpb,=,n r5,r20,0x400081cc
0x400081b8:     b,l 0x4000b29c,rp
0x400081bc:     copy r5,r25
                                                                                           
0x4000b29c:     stw rp,-14(sr0,sp)
0x4000b2a0:     stw,ma r4,40(sr0,sp)
0x4000b2a4:     stw r19,-20(sr0,sp)
0x4000b2a8:     b,l 0x4000b930,rp
0x4000b2ac:     ldo 10(r26),r26
                                                                                           
0x4000b930:     stw rp,-14(sr0,sp)
0x4000b934:     ldo 80(sp),sp
0x4000b938:     stw r7,-68(sr0,sp)
0x4000b93c:     stw r6,-64(sr0,sp)
0x4000b940:     stw r5,-60(sr0,sp)
0x4000b944:     stw r4,-5c(sr0,sp)
0x4000b948:     stw r3,-58(sr0,sp)
0x4000b94c:     stw r19,-20(sr0,sp)
0x4000b950:     copy r26,r5
0x4000b954:     ldi 0,r3
0x4000b958:     ldil 1e8000,r20
0x4000b95c:     ldi 31,r6
0x4000b960:     ldo 481(r20),r7
0x4000b964:     stw r5,-70(sr0,sp)
0x4000b968:     ldw -70(sr0,sp),r20
0x4000b96c:     depwi 0,31,4,r20
0x4000b970:     cmpb,<<=,n r5,r20,0x4000b984
                                                                                           
0x4000b984:     ldw -70(sr0,sp),r20
0x4000b988:     ldcw 0(sr0,r20),r20
0x4000b98c:     cmpib,<> 0,r20,0x4000b9d0
0x4000b990:     ldw -94(sr0,sp),rp
                                                                                           
0x4000b9d0:     ldw -68(sr0,sp),r7
0x4000b9d4:     ldw -64(sr0,sp),r6
0x4000b9d8:     ldw -60(sr0,sp),r5
0x4000b9dc:     ldw -5c(sr0,sp),r4
0x4000b9e0:     ldw -58(sr0,sp),r3
0x4000b9e4:     bv r0(rp)
0x4000b9e8:     ldo -80(sp),sp
                                                                                           
0x4000b2b0:     ldw -54(sr0,sp),rp
0x4000b2b4:     bv r0(rp)
0x4000b2b8:     ldw,mb -40(sr0,sp),r4
                                                                                           
0x400081c0:     stw r0,4(sr0,r3)
0x400081c4:     b,l 0x40008180,r0
0x400081c8:     stw r5,8(sr0,r3)
                                                                                           
0x40008180:     ldi 0,ret0
0x40008184:     ldw -54(sr0,sp),rp
0x40008188:     ldw -3c(sr0,sp),r4
0x4000818c:     ldw -38(sr0,sp),r3
0x40008190:     bv r0(rp)
0x40008194:     ldw,mb -40(sr0,sp),r5
                                                                                           
0x4015e3f8:     b,l 0x4015e3e0,r0
0x4015e3fc:     ldw -54(sr0,sp),rp
                                                                                           
0x4015e3e0:     bv r0(rp)
0x4015e3e4:     ldw,mb -40(sr0,sp),r4

0x40008838:     copy r4,r19  <---Restore----- r19 = 0x40020718
__asm(
0x4000883c:     be,l 100(sr2,r0),%sr0,%r31
0x40008840:     ldi 2,r20                    !! FORK !!
);
0x40008844:     ldi -1000,r20 <--Corrupted--- r19 = 0x10106368
0x40008848:     cmpb,>>= r20,ret0,0x40008868
0x4000884c:     copy ret0,r6
                                                                                           
0x40008868:     cmpib,<> 0,r6,0x400088e4
0x4000886c:     copy r19,r4
                                                                                           
0x400088e4:     b,l 0x4000a9d4,rp
0x400088e8:     ldo 38(r7),r5
                                                                                           
0x4000a9d4:     stw rp,-14(sr0,sp)
0x4000a9d8:     ldo 40(sp),sp
0x4000a9dc:     stw r19,-20(sr0,sp)
0x4000a9e0:     ldw -54(sr0,sp),rp
0x4000a9e4:     b,l 0x40005440,r0
0x4000a9e8:     ldo -40(sp),sp

No scheduled r19 restore yet.  
                                                                                         
0x40005440:     addil -800,r19,%r1
0x40005444:     ldw 55c(sr0,r1),r21 <-- Not quote boom, probably wrong.
0x40005448:     bv r0(r21)
0x4000544c:     ldw 560(sr0,r1),r19 <-- *Boom*

> If the restore is not there, please send preprocessed source and
> compilation details.  BOOM appears to be in an import stub (i.e.,
> there must be a call in the 10).  Calls use r19 in pic code (i.e.,
> in the import stub), so it's not obvious why the restore wouldn't be
> there.

The restore is not there. Placing r19 into the __asm(syscall) clobber 
list doesn't fix the issue. Nothing short of an explicity stw/ldw inside 
the __asm statement saves r19 from corruption.

> Scheduling can reorder instructions, so the pic restore doesn't have
> to immediately follow a call.  "FORK" isn't a GCC generated call
> (we never use sr2).  Calls are tricky and the procedure for generating
> them has been revised several times.  Now, we don't split out the save
> and restore of the pic register until after reload.  Reload can introduce
> new uses of the pic register.  When not using exceptions, register
> copies following a call are part of an "in call group" that keeps the
> restore in the same basic block as the call for scheduling purposes.
> However, when exceptions are enabled, the basic block ends at the
> call.  If the restore is split out from the call before reload,
> it will be scheduled in a different basic block from the call.  As
> a result, scheduling may move another instruction which has an
> implicit dependence on the pic register forward past the restore.
> Then, BOOM.

Preprocessed source for ptfork.c at:
http://www.baldric.uwo.ca/~carlos/ptfork.E
You'll see the INLINE_SYSCALL in __pthread_fork on line 8137.

I would like to not that I might have made _many_ errors, but the simple
stw/ldw r19 fix passes all the glib thread tests so I think its a step
in the right direction.

Thanks for the help!
c.



From - Thu Nov 08 21:29:03 2018
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Subject: [parisc-linux] Re: [glibc] tststatic failues, reduced to simple testcase.
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> I'm sending this to the list so it gets recorded on archive. Our problem
> right now it that we don't properly restore r19 after an __asm()
> statement even if the clobber contains r19. Or rather gcc doesn't
> schedule the restore to occur at the right time.

An asm will not cause the restoration of %r19.  The compiler treats
r19 as a fixed register when generating pic code.  The saving and
restoring of the pic register across calls is something that the pa
port does itself in the backend.  Clobbering r19 won't cause it
to be restored.

In the case of syscalls, the compiler has no way of telling that
you are making a "call".

> What does this mean for glibc, well it means that ld.so's first fork
> corrupts the PIC register r19 aka LTP, and the subsequent import stub
> for a function call fails (SIGSEGV). What is effected in glibc?
> The following:
> 	- INTERNAL_SYSCALL (Macro syscall)
> 	- INLINE_SYSCALL (Macro syscall)
> 	- syscall(...) (C version)
> 	- DO_CALL (Assembly wrapper syscall)
> Explicitly storing and loading r19 around the syscall e.g. inside the
> __asm() statement works around the problem. I do not want to have to
> stw/ldw since it costs a lot in performance, we know now to look at gcc
> for help. Perhaps I will use this as a temporary measure to release
> glibc 2.3.2 for debian so we keep testing moving.
> 
> This problem has a number of interesting heisenbugs:
> 	- If the kernel decides not to scratch in r19 then you're okay.
> 	- If the compiler version scheduled r19 restore differently then
>           you're okay.

> 0x40008838:     copy r4,r19  <---Restore----- r19 = 0x40020718

This is a restore after a call.

> __asm(
> 0x4000883c:     be,l 100(sr2,r0),%sr0,%r31
> 0x40008840:     ldi 2,r20                    !! FORK !!
> );
> 0x40008844:     ldi -1000,r20 <--Corrupted--- r19 = 0x10106368

There is no save and restore around the syscall as GCC doesn't know
the asm does a call.  Clobbering r19 isn't an option in PIC code.
Thus, either the syscall has to save and restore r19, or the kernel
has to avoid clobbering r19.

> Preprocessed source for ptfork.c at:
> http://www.baldric.uwo.ca/~carlos/ptfork.E
> You'll see the INLINE_SYSCALL in __pthread_fork on line 8137.
> 
> I would like to not that I might have made _many_ errors, but the simple
> stw/ldw r19 fix passes all the glib thread tests so I think its a step
> in the right direction.

You should be able to use a register.  The problem is how to do this
in a nice way so that you don't have to save and restore r19 in non-pic
code.

Ouch, I am surprised that this hasn't had a bigger effect.

Dave


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> > __asm(
> > 0x4000883c:     be,l 100(sr2,r0),%sr0,%r31
> > 0x40008840:     ldi 2,r20                    !! FORK !!
> > );
> > 0x40008844:     ldi -1000,r20 <--Corrupted--- r19 = 0x10106368

Looking at the kernel syscall code, it seems at first glance that
r19 is saved and restored.  Thus, the problem may be specific to fork.

Dave


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To: Jan-Benedict Glaw <jbglaw@lug-owl.de>
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On Fri, Aug 15, 2003 at 08:37:18AM +0200, Jan-Benedict Glaw wrote:
> Unstable's current XFree (4.2.1.1) "RENDER" extension (used for
> anti-aliasing IIRC) takes a _lot_ of colors for it's own (rumors I
> heared talked about > 200 IIRC)...

On this note I want to share solving my last problem with xchat
and 8-bit TrueColor. C3k doesn't have anything better at the moment.

The "couriour new" font was getting mangled colors as part of the
effort to anti-alias (what I assume is) a true-type or re-sized font.
Picking a bitmap font like "fixed" too take care of this.
Nice readable letters all in white.

hth,
grant


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From: Ruediger Scholz <rscholz@hrzpub.tu-darmstadt.de>
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Subject: [parisc-linux] Security Hole in binfmt_som.c ?
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Hi there,

when compiling the new 2.4.22-kernel I get an errror message:
------------>><<---------------
gcc -D__KERNEL__ -I/usr/src/linux-2.4/include -Wall -Wstrict-prototypes 
-Wno-tri
graphs -O2 -fno-strict-aliasing -fno-common -D__linux__ -pipe 
-fno-strength-redu
ce -mno-space-regs -mfast-indirect-calls -mdisable-fpregs 
-ffunction-sections -m
arch=1.1 -mschedule=7100LC   -nostdinc -I 
/usr/lib/gcc-lib/hppa-linux/3.3.1/incl
ude -DKBUILD_BASENAME=binfmt_som  -c -o binfmt_som.o binfmt_som.c
binfmt_som.c:216:2: #error "Fix security hole before enabling me"
make[2]: *** [binfmt_som.o] Fehler 1
make[2]: Leaving directory `/usr/src/linux-2.4/fs'
make[1]: *** [first_rule] Fehler 2
make[1]: Leaving directory `/usr/src/linux-2.4/fs'
make: *** [_dir_fs] Fehler 2
------------>><<---------------
What's this message about?
Kernel .config is built by make oldconfig.

Greetings, Ruediger



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Subject: Re: [parisc-linux] Security Hole in binfmt_som.c ?
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On Sat, Aug 30, 2003 at 02:42:37PM +0200, Ruediger Scholz wrote:
> binfmt_som.c:216:2: #error "Fix security hole before enabling me"
> What's this message about?

I don't know.  I wish someone would tell me.  You'd think they'd have the
decency to contact the person listed as the author at the top of the file.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Security Hole in binfmt_som.c ?
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On Sad, 2003-08-30 at 14:15, Matthew Wilcox wrote:
> On Sat, Aug 30, 2003 at 02:42:37PM +0200, Ruediger Scholz wrote:
> > binfmt_som.c:216:2: #error "Fix security hole before enabling me"
> > What's this message about?
> 
> I don't know.  I wish someone would tell me.  You'd think they'd have the
> decency to contact the person listed as the author at the top of the file.

Actually explanations were posted in the previous discussion on this on
parisc-list.

Someone has to do the equivalent of the 2.4.22 binfmt_elf changes if
neccessary so that another thread can't change the file handles or 
steal the exec fd being passed to the loader.



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Subject: Re: [parisc-linux] Security Hole in binfmt_som.c ?
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On Sat, Aug 30, 2003 at 02:49:50PM +0100, Alan Cox wrote:
> On Sad, 2003-08-30 at 14:15, Matthew Wilcox wrote:
> > On Sat, Aug 30, 2003 at 02:42:37PM +0200, Ruediger Scholz wrote:
> > > binfmt_som.c:216:2: #error "Fix security hole before enabling me"
> > > What's this message about?
> > 
> > I don't know.  I wish someone would tell me.  You'd think they'd have the
> > decency to contact the person listed as the author at the top of the file.
> 
> Actually explanations were posted in the previous discussion on this on
> parisc-list.

Um, I can't find it, and neither can Google:
http://www.google.com/search?q=binfmt_som+security&as_q=%5Bparisc-linux&btnG=Google+Search&as_sitesearch=lists.parisc-linux.org

> Someone has to do the equivalent of the 2.4.22 binfmt_elf changes if
> neccessary so that another thread can't change the file handles or 
> steal the exec fd being passed to the loader.

Hm, ok, I'll take a look later this weekend if no-one gets to it first.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Dave,

> An asm will not cause the restoration of %r19.  The compiler treats
> r19 as a fixed register when generating pic code.  The saving and
> restoring of the pic register across calls is something that the pa
> port does itself in the backend.  Clobbering r19 won't cause it
> to be restored.

I thought that listing it in the clobber would be the solution.

> In the case of syscalls, the compiler has no way of telling that
> you are making a "call".

Yes, glibc has begun using inlined macros rather than incuring the
penalty of a function call to get at the syscall. I _could_ cheat and
make the inlined code call a 'C' function which would force a restore,
but we then have _many_ more insn on the fast path (rather than just a
stw and ldw).
 
> > 0x40008838:     copy r4,r19  <---Restore----- r19 = 0x40020718
> 
> This is a restore after a call.

Correct. This is a delayed restore from a previous call.
 
> > __asm(
> > 0x4000883c:     be,l 100(sr2,r0),%sr0,%r31
> > 0x40008840:     ldi 2,r20                    !! FORK !!
> > );
> > 0x40008844:     ldi -1000,r20 <--Corrupted--- r19 = 0x10106368
> 
> There is no save and restore around the syscall as GCC doesn't know
> the asm does a call.  Clobbering r19 isn't an option in PIC code.
> Thus, either the syscall has to save and restore r19, or the kernel
> has to avoid clobbering r19.

I would vote for having the kernel avoid trashing r19, though that means
that the kernel has to do the stw/ldw, and wouldn't it be more
beneficial to do this in userspace and allow the kernel an extra
register to generate code with?
 
> You should be able to use a register.  The problem is how to do this
> in a nice way so that you don't have to save and restore r19 in non-pic
> code.

Glibc tells me if I'm in PIC code by setting -DPIC on the command line.
I'm planning on using "ifdef PIC" to optimize away the save and restore.
The issue really is that most programs are dynamically linked against
libc, and thus all their syscalls have to save and restore r19.
 
> Ouch, I am surprised that this hasn't had a bigger effect.

Me too. I really see this as a "We should have been doing this anyway"
and we aren't going to get away from this.

c.


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On Fri, Aug 29, 2003 at 06:44:03PM -0400, John David Anglin wrote:
> > > __asm(
> > > 0x4000883c:     be,l 100(sr2,r0),%sr0,%r31
> > > 0x40008840:     ldi 2,r20                    !! FORK !!
> > > );
> > > 0x40008844:     ldi -1000,r20 <--Corrupted--- r19 = 0x10106368
> 
> Looking at the kernel syscall code, it seems at first glance that
> r19 is saved and restored.  Thus, the problem may be specific to fork.

The first place I went to was syscall.S and entry.S to see if r19 was
saved and restored. It is infact saved and restored, _but_ there seems
to be a case in the sys_fork_wrapper where r19 is written back as a temp
slot (PT_XX struct).

linux-2.4/arch/parisc/kernel/entry.S

   2004         /* These are call-clobbered registers and therefore
   2005            also syscall-clobbered (we hope). */
   2006         STREG   %r2,PT_GR19(%r1)        /* save for child */
   2007         STREG   %r30,PT_GR21(%r1)

This is done just before the call to 'sys_clone', but it's never used
anywhere. The comment indicates that the author believed he had all
right to use caller saves registers, and they should.

Aflicted: sys_fork_wrapper, sys_clone_wrapper, sys_vfork_wrapper

I'm tempted to remove the store and load of call-clobbered registers
from our syscall path, push them into the glibc wrappers, and see what 
happens :)

c.



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> 
> Yes.  If you follow the thread that I sent you, Jim Hull comments on
> this and offers a rewrite of the sentence that you quoted.  I believe
> that referencing memory is important as this makes the operation visible
> to another processor.  A register->register operation doesn't do this.
> 

I implemented and tested 3 versions, fcpy doesn't work on my c3k, but
the fstd and fldd does. Any recommendations on which to take. I'm
tempted to leave all this in and send the patch like this upstream, so I
don't forget what the other versions looked like :)

Comments welcome.

c.


diff -u -p -r1.4 fraiseexcpt.c
--- libc/sysdeps/hppa/fpu/fraiseexcpt.c	10 Sep 2002 01:26:37 -0000	1.4
+++ libc/sysdeps/hppa/fpu/fraiseexcpt.c	30 Aug 2003 16:35:48 -0000
@@ -22,9 +22,27 @@
 #include <float.h>
 #include <math.h>
 
+/* We implement three methods for flushing delayed exceptions. The first
+   is an interlocked register copy with the destination register of the 
+   trapping insn. This method is not recommended, and may not work in all
+   situations. The last two, either loading or storing a value from memory
+   into the destination register of the trapping insn will work, here we
+   choose to store the value to memory.
+  
+   Please see section 10, 
+   page 10-5 "Delayed Trapping" in the PA-RISC 2.0 Architecture manual */
+
+#undef BARRIER_FCPY
+#define BARRIER_FSTD
+#undef BARRIER_FLDD
+
 int
 feraiseexcept (int excepts)
 {
+  /* Provides a place to fake our write for flushing the delayed trap */
+   double dmem = 0;
+   double * pmem = &dmem;
+	
   /* Raise exceptions represented by EXCEPTS.  But we must raise only one
      signal at a time.  It is important that if the overflow/underflow
      exception and the divide by zero exception are given at the same
@@ -33,26 +51,49 @@ feraiseexcept (int excepts)
 
   /* We do these bits in assembly to be certain GCC doesn't optimize
      away something important, and so we can force delayed traps to
-     occur.  */
-
-  /* FIXME: These all need verification! */
+     occur. */
 
   /* First: invalid exception.  */
   if (excepts & FE_INVALID)
     {
       /* One example of a invalid operation is 0 * Infinity.  */
       double d = HUGE_VAL;
-      __asm__ __volatile__ ("fmpy,dbl %1,%%fr0,%0\n\t"
-			    /* FIXME: is this a proper trap barrier? */
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d));
+      __asm__ __volatile__ (
+		"	fmpy,dbl %0,%%fr0,%0\n"
+#ifdef BARRIER_FCPY
+		"	fcpy,dbl %0,%1"
+		: "+f" (d), "=f" (dmem)
+#endif
+#ifdef BARRIER_FSTD
+		"	fstd,dbl %0,%1"
+		: "+f" (d), "=m" (*pmem)
+#endif
+#ifdef BARRIER_FLDD
+		"	fldd,dbl 0(%%sr0,%%sp),%0"
+		: "+f" (d)
+#endif
+	);
     }
 
   /* Next: division by zero.  */
   if (excepts & FE_DIVBYZERO)
     {
       double d = 1.0;
-      __asm__ __volatile__ ("fdiv,dbl %1,%%fr0,%0\n\t"
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d));
+      __asm__ __volatile__ (
+		"	fdiv,dbl %0,%%fr0,%0\n"
+#ifdef BARRIER_FCPY		
+		"	fcpy,dbl %0,%1"
+		: "+f" (d), "=f" (dmem)
+#endif
+#ifdef BARRIER_FSTD
+		"	fstd,dbl %0,%1"
+		: "+f" (d), "=m" (*pmem)
+#endif
+#ifdef BARRIER_FLDD
+		"	fldd,dbl 0(%%sr0,%%sp),%0"
+		: "+f" (d)
+#endif		
+	);
     }
 
   /* Next: overflow.  */
@@ -61,8 +102,21 @@ feraiseexcept (int excepts)
     {
       double d = DBL_MAX;
 
-      __asm__ __volatile__ ("fmpy,dbl %1,%1,%0\n\t"
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d));
+      __asm__ __volatile__ (
+		"	fmpy,dbl %0,%0,%0\n"
+#ifdef BARRIER_FCPY		
+		"	fcpy,dbl %0,%1"
+		: "+f" (d), "=f" (dmem)
+#endif
+#ifdef BARRIER_FSTD
+		"	fstd,dbl %0,%1"
+		: "+f" (d), "=m" (*pmem)
+#endif
+#ifdef BARRIER_FLDD
+		"	fldd,dbl 0(%%sr0,%%sp),%0"
+		: "+f" (d)
+#endif		
+	);
     }
 
   /* Next: underflow.  */
@@ -71,8 +125,23 @@ feraiseexcept (int excepts)
       double d = DBL_MIN;
       double e = 69.69;
 
-      __asm__ __volatile__ ("fdiv,dbl %1,%2,%0\n\t"
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d), "f" (e));
+      __asm__ __volatile__ (
+#ifdef BARRIER_FCPY		
+		"	fdiv,dbl %0,%2,%0\n"
+		"	fcpy,dbl %0,%1"
+		: "+f" (d), "=f" (dmem) : "f" (e)
+#endif
+#ifdef BARRIER_FSTD
+		"	fdiv,dbl %0,%2,%0\n"
+		"	fstd,dbl %0,%1"
+		: "+f" (d), "=m" (*pmem) : "f" (e)
+#endif
+#ifdef BARRIER_FLDD
+		"	fdiv,dbl %0,%1,%0\n"
+		"	fldd,dbl 0(%%sr0,%%sp),%0"
+		: "+f" (d) : "f" (e)
+#endif		
+	);
     }
 
   /* Last: inexact.  */
@@ -81,8 +150,23 @@ feraiseexcept (int excepts)
       double d = 1.0;
       double e = M_PI;
 
-      __asm__ __volatile__ ("fdiv,dbl %1,%2,%0\n\t"
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d), "f" (e));
+      __asm__ __volatile__ (
+#ifdef BARRIER_FCPY		
+		"	fdiv,dbl %0,%2,%0\n"
+		"	fcpy,dbl %0,%1"
+		: "+f" (d), "=f" (dmem) : "f" (e)
+#endif
+#ifdef BARRIER_FSTD
+		"	fdiv,dbl %0,%2,%0\n"
+		"	fstd,dbl %0,%1"
+		: "+f" (d), "=m" (*pmem) : "f" (e)
+#endif
+#ifdef BARRIER_FLDD
+		"	fdiv,dbl %0,%1,%0\n"
+		"	fldd,dbl 0(%%sr0,%%sp),%0"
+		: "+f" (d) : "f" (e)
+#endif		
+	);
     }
 
   /* Success.  */


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> > Yes.  If you follow the thread that I sent you, Jim Hull comments on
> > this and offers a rewrite of the sentence that you quoted.  I believe
> > that referencing memory is important as this makes the operation visible
> > to another processor.  A register->register operation doesn't do this.
> > 
> 
> I implemented and tested 3 versions, fcpy doesn't work on my c3k, but
> the fstd and fldd does. Any recommendations on which to take. I'm
> tempted to leave all this in and send the patch like this upstream, so I
> don't forget what the other versions looked like :)

The FSTD barrier looks fine to me.  The fcpy version doesn't work, so
I wouldn't keep it around.  You might add a comment that fcpy doesn't
work on at least some implementations.

Dave


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On Sad, 2003-08-30 at 14:59, Matthew Wilcox wrote:
> Um, I can't find it, and neither can Google:
> http://www.google.com/search?q=binfmt_som+security&as_q=%5Bparisc-linux&btnG=Google+Search&as_sitesearch=lists.parisc-linux.org

Humm I thought it was on this list. Maybe lkml then

Whatever the basic problem is we have kernel loaders and
user threads sharing a file table unsafely



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> On Fri, Aug 29, 2003 at 06:44:03PM -0400, John David Anglin wrote:
> > > > __asm(
> > > > 0x4000883c:     be,l 100(sr2,r0),%sr0,%r31
> > > > 0x40008840:     ldi 2,r20                    !! FORK !!
> > > > );
> > > > 0x40008844:     ldi -1000,r20 <--Corrupted--- r19 = 0x10106368
> > 
> > Looking at the kernel syscall code, it seems at first glance that
> > r19 is saved and restored.  Thus, the problem may be specific to fork.
> 
> The first place I went to was syscall.S and entry.S to see if r19 was
> saved and restored. It is infact saved and restored, _but_ there seems
> to be a case in the sys_fork_wrapper where r19 is written back as a temp
> slot (PT_XX struct).
> 
> linux-2.4/arch/parisc/kernel/entry.S
> 
>    2004         /* These are call-clobbered registers and therefore
>    2005            also syscall-clobbered (we hope). */
>    2006         STREG   %r2,PT_GR19(%r1)        /* save for child */
>    2007         STREG   %r30,PT_GR21(%r1)
> 
> This is done just before the call to 'sys_clone', but it's never used
> anywhere. The comment indicates that the author believed he had all
> right to use caller saves registers, and they should.

I don't fully understand this code but possibly PT_GR20 might be used
to save r2.  In the fork call for example, we know that this location
contains  __NR_fork.  This value gets restored to r20 in wrapper_exit.
I think the valued saved above is loaded into r2 here:

child_return:
	bl      schedule_tail, %r2
	nop

	LDREG   TASK_PT_GR19-TASK_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30),%r2
	b       wrapper_exit
	copy    %r0,%r28

I don't see where the %r30 value saved in PT_GR21 is used.

If a syscall is going to clobber registers, the appropriate clobbers
need to be added to the asm used for the syscall so that gcc doesn't
try to use these registers over the syscall.  Use of PT_GR19 appears
to have been a bad choice because of its special use in pic code.

Dave


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Warning to sender. ScanMail has detected a virus in an email you sent.


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Subject: Re: [parisc-linux] Re: [glibc] tststatic failues, reduced to simple testcase.
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> 
> Aflicted: sys_fork_wrapper, sys_clone_wrapper, sys_vfork_wrapper
> 
> I'm tempted to remove the store and load of call-clobbered registers
> from our syscall path, push them into the glibc wrappers, and see what 
> happens :)

What happens when your stack changes on the route back from the
syscall?

	stw r19, -32(sp)
	/* clone */
	ldw -32(sp), r19

Obviously I could add a "if parent then ldw -32(sp),r19", but the child,
not having the same stack would be hard pressed if r19 changed during
the syscall. Although, I think I see that in glibc the child's function
is called via $$dyncall and I assume that might fixup r19 for the child.

Do any other syscalls change the stack on return? I can only really
think of all the fork-ish type syscalls doing that sort of stuff.

c.


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----- Forwarded message from Ron Gage <ron@rongage.org> -----

From: Ron Gage <ron@rongage.org>
To: kernel-janitor-discuss@lists.sourceforge.net
Subject: [Patchbomb] - Copy_to/from_user audit - oss4 - RESEND
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This patch is also available on my ftp server
ftp://new.rongage.org/pub/linux

This patch catches insures proper return values from 
copy_to/from_user calls.

Ron Gage - Pontiac, MI

diff -urN linux-2.6.0-test4/sound/oss/harmony.c linux-2.6.0-test4-patched/sound/oss/harmony.c
--- linux-2.6.0-test4/sound/oss/harmony.c	2003-08-22 19:58:39.000000000 -0400
+++ linux-2.6.0-test4-patched/sound/oss/harmony.c	2003-08-29 22:02:42.000000000 -0400
@@ -725,7 +725,7 @@
                 info.fragments = MAX_BUFS - harmony.nb_filled_play;
 		info.fragsize = HARMONY_BUF_SIZE;
                 info.bytes = info.fragments * info.fragsize;
-		return copy_to_user((void *)arg, &info, sizeof(info));
+		return copy_to_user((void *)arg, &info, sizeof(info)) ? -EFAULT : 0 ;
 
 	case SNDCTL_DSP_GETISPACE:
 		if (!(file->f_mode & FMODE_READ))
@@ -734,7 +734,7 @@
                 info.fragments = /*MAX_BUFS-*/ harmony.nb_filled_record;
 		info.fragsize = HARMONY_BUF_SIZE;
                 info.bytes = info.fragments * info.fragsize;
-		return copy_to_user((void *)arg, &info, sizeof(info));
+		return copy_to_user((void *)arg, &info, sizeof(info)) ? -EFAULT : 0 ;
 	
 	case SNDCTL_DSP_SYNC:
 		return 0;



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-- 
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> I don't fully understand this code but possibly PT_GR20 might be used
> to save r2.  In the fork call for example, we know that this location
> contains  __NR_fork.  This value gets restored to r20 in wrapper_exit.
> I think the valued saved above is loaded into r2 here:

So you say perhaps instead of PT_GR19 we use PT_GR20 and
TASK_PT_GR20? I think we can't though, because tracing the syscall
requires that GR20 continue to retain the syscall value. I think we can
use _any_ other caller-saves registers (including the last input for the
fork-ish calls e.g. GR21 or GR22?).
 
> child_return:
> 	bl      schedule_tail, %r2
> 	nop
> 
> 	LDREG   TASK_PT_GR19-TASK_SZ_ALGN-FRAME_SIZE-FRAME_SIZE(%r30),%r2
> 	b       wrapper_exit
> 	copy    %r0,%r28
> 
> I don't see where the %r30 value saved in PT_GR21 is used.

Me neither. Perhaps it's superfluous and can be used to retrieve r2 and
thus keep r19 safe.

> If a syscall is going to clobber registers, the appropriate clobbers
> need to be added to the asm used for the syscall so that gcc doesn't
> try to use these registers over the syscall.  Use of PT_GR19 appears
> to have been a bad choice because of its special use in pic code.

I've added all the caller-saves registers to our clobber lists when
making syscalls. Though, r19 being special, I've had to add "STW_PIC"
and "LDW_PIC" that do the saving and restore _only_ if we are compiled
PIC.

c.



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----- Forwarded message from Ron Gage <ron@rongage.org> -----

From: Ron Gage <ron@rongage.org>
To: kernel-janitor-discuss@lists.sourceforge.net
Subject: [Patchbomb] - Copy_to/from_user audit - parisc -RESEND
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X-Original-Date: Sun, 31 Aug 2003 11:18:49 -0400
Date: Sun, 31 Aug 2003 11:18:49 -0400

This patch is also available on my ftp server
ftp://new.rongage.org/pub/linux

This patch catches insures proper return values from 
copy_to/from_user calls.

Ron Gage - Pontiac, MI


diff -urN linux-2.6.0-test4/arch/parisc/kernel/signal32.c linux-2.6.0-test4-patched/arch/parisc/kernel/signal32.c
--- linux-2.6.0-test4/arch/parisc/kernel/signal32.c	2003-08-22 19:53:07.000000000 -0400
+++ linux-2.6.0-test4-patched/arch/parisc/kernel/signal32.c	2003-08-29 21:38:02.000000000 -0400
@@ -38,7 +38,7 @@
 	if (sz != sizeof *set) panic("put_sigset32()");
 	sigset_64to32(&s, set);
 
-	return copy_to_user(up, &s, sizeof s);
+	return copy_to_user(up, &s, sizeof s) ? -EFAULT : 0 ;
 }
 
 static int
diff -urN linux-2.6.0-test4/arch/parisc/kernel/sys_parisc.c linux-2.6.0-test4-patched/arch/parisc/kernel/sys_parisc.c
--- linux-2.6.0-test4/arch/parisc/kernel/sys_parisc.c	2003-08-22 19:59:03.000000000 -0400
+++ linux-2.6.0-test4-patched/arch/parisc/kernel/sys_parisc.c	2003-08-29 21:36:06.000000000 -0400
@@ -271,7 +271,7 @@
 	tbuf.shm_cpid = sbuf->shm_cpid;
 	tbuf.shm_lpid = sbuf->shm_lpid;
 	tbuf.shm_nattch = sbuf->shm_nattch;
-	return copy_to_user(buf, &tbuf, sizeof tbuf);
+	return copy_to_user(buf, &tbuf, sizeof tbuf) ? -EFAULT : 0;
 }
 
 int sys_msgctl_broken(int msqid, int cmd, struct msqid_ds *buf)
diff -urN linux-2.6.0-test4/arch/parisc/kernel/sys_parisc32.c linux-2.6.0-test4-patched/arch/parisc/kernel/sys_parisc32.c
--- linux-2.6.0-test4/arch/parisc/kernel/sys_parisc32.c	2003-08-22 19:54:17.000000000 -0400
+++ linux-2.6.0-test4-patched/arch/parisc/kernel/sys_parisc32.c	2003-08-29 21:36:59.000000000 -0400
@@ -370,7 +370,7 @@
 	struct compat_timeval t32;
 	t32.tv_sec = t->tv_sec;
 	t32.tv_usec = t->tv_usec;
-	return copy_to_user(u, &t32, sizeof t32);
+	return copy_to_user(u, &t32, sizeof t32) ? -EFAULT : 0 ;
 }
 
 static int



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-- 
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victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> > I don't fully understand this code but possibly PT_GR20 might be used
> > to save r2.  In the fork call for example, we know that this location
> > contains  __NR_fork.  This value gets restored to r20 in wrapper_exit.
> > I think the valued saved above is loaded into r2 here:
> 
> So you say perhaps instead of PT_GR19 we use PT_GR20 and
> TASK_PT_GR20? I think we can't though, because tracing the syscall
> requires that GR20 continue to retain the syscall value. I think we can
> use _any_ other caller-saves registers (including the last input for the
> fork-ish calls e.g. GR21 or GR22?).

Isn't the restoration of the value in wrapper_exit enough or is strace
looking in the task struct?

> Me neither. Perhaps it's superfluous and can be used to retrieve r2 and
> thus keep r19 safe.

It's worth a try.

> > If a syscall is going to clobber registers, the appropriate clobbers
> > need to be added to the asm used for the syscall so that gcc doesn't
> > try to use these registers over the syscall.  Use of PT_GR19 appears
> > to have been a bad choice because of its special use in pic code.
> 
> I've added all the caller-saves registers to our clobber lists when
> making syscalls. Though, r19 being special, I've had to add "STW_PIC"
> and "LDW_PIC" that do the saving and restore _only_ if we are compiled
> PIC.

That seems overly pessimistic and will mean a lot more register saves
in routines that do syscalls.  It appears the system saves the caller-save
registers in all syscalls except the fork related calls.  It would
be best to keep the number of clobbers to a minimum.  I wonder, there
seems to be a slot in the task struct for r1, but it's never saved in
a syscall, and r1 is clobbered.  Maybe the r1 slot could be used to save
r2.  This might mean that we don't need to use GR21 or GR22 at all.
It would avoid having to have special pic code.

Dave


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On 2003-08-31 17:39:57, Matthew Wilcox wrote:

What's the deal with this [subject] [fubar] [thingie]? :=3D) I'm getting
confused and I need to resize my terminal to like 300x24 to read this..

--=20
Stian S=F8iland               Work toward win-win situation. Win-lose
Trondheim, Norway           is where you win and the other lose.
http://www.soiland.no/      Lose-lose and lose-win are left as an
                            exercise to the reader.  [Limoncelli/Hogan]


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Subject: Re: [parisc-linux] [ron@rongage.org: [Patchbomb] - Copy_to/from_user audit - parisc -RESEND]
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> This patch catches insures proper return values from 
> copy_to/from_user calls.

um, some of these are not quite correct.

> +++ linux-2.6.0-test4-patched/arch/parisc/kernel/signal32.c	2003-08-29 21:38:02.000000000 -0400
> @@ -38,7 +38,7 @@
>  	if (sz != sizeof *set) panic("put_sigset32()");
>  	sigset_64to32(&s, set);
>  
> -	return copy_to_user(up, &s, sizeof s);
> +	return copy_to_user(up, &s, sizeof s) ? -EFAULT : 0 ;
>  }

this one is for put_sigset32, which is used like this:

        if (!ret && oset && put_sigset32(oset, &old_set, sigsetsize))
                return -EFAULT;

so your patch is not needed.

> --- linux-2.6.0-test4/arch/parisc/kernel/sys_parisc32.c	2003-08-22 19:54:17.000000000 -0400
> +++ linux-2.6.0-test4-patched/arch/parisc/kernel/sys_parisc32.c	2003-08-29 21:36:59.000000000 -0400
> @@ -370,7 +370,7 @@
>  	struct compat_timeval t32;
>  	t32.tv_sec = t->tv_sec;
>  	t32.tv_usec = t->tv_usec;
> -	return copy_to_user(u, &t32, sizeof t32);
> +	return copy_to_user(u, &t32, sizeof t32) ? -EFAULT : 0 ;
>  }

this one is similar.

>  static int
> diff -urN linux-2.6.0-test4/arch/parisc/kernel/sys_parisc.c linux-2.6.0-test4-patched/arch/parisc/kernel/sys_parisc.c
> --- linux-2.6.0-test4/arch/parisc/kernel/sys_parisc.c	2003-08-22 19:59:03.000000000 -0400
> +++ linux-2.6.0-test4-patched/arch/parisc/kernel/sys_parisc.c	2003-08-29 21:36:06.000000000 -0400
> @@ -271,7 +271,7 @@
>  	tbuf.shm_cpid = sbuf->shm_cpid;
>  	tbuf.shm_lpid = sbuf->shm_lpid;
>  	tbuf.shm_nattch = sbuf->shm_nattch;
> -	return copy_to_user(buf, &tbuf, sizeof tbuf);
> +	return copy_to_user(buf, &tbuf, sizeof tbuf) ? -EFAULT : 0;
>  }
>  
>  int sys_msgctl_broken(int msqid, int cmd, struct msqid_ds *buf)

this one seems correct. i'll apply it to the parisc tree.

thx
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> > I've added all the caller-saves registers to our clobber lists when
> > making syscalls. Though, r19 being special, I've had to add "STW_PIC"
> > and "LDW_PIC" that do the saving and restore _only_ if we are compiled
> > PIC.
> 
> That seems overly pessimistic and will mean a lot more register saves
> in routines that do syscalls.  It appears the system saves the caller-save
> registers in all syscalls except the fork related calls.  It would
> be best to keep the number of clobbers to a minimum.  I wonder, there
> seems to be a slot in the task struct for r1, but it's never saved in
> a syscall, and r1 is clobbered.  Maybe the r1 slot could be used to save
> r2.  This might mean that we don't need to use GR21 or GR22 at all.
> It would avoid having to have special pic code.

Another possibility might be to define another couple of offsets in the
task struct.  It looks as if there is plenty of space before an alignment
boundary is reached.


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] Re: [glibc] tststatic failues, reduced to simp le testcase.
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> Another possibility might be to define another couple of offsets in the
> task struct.  It looks as if there is plenty of space before an alignment
> boundary is reached.

That seems best. The sad fact though is that until I bump
min_kernel_version in glibc past the kernel version that last didn't
have this fix, I'm still forced to implement all this for people with
older kernels.

c.



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From: John David Anglin <dave@hiauly3.hia.nrc.ca>
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Subject: Re: [parisc-linux] Re: [glibc] tststatic failues, reduced to simp le testcase.
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> That seems best. The sad fact though is that until I bump
> min_kernel_version in glibc past the kernel version that last didn't
> have this fix, I'm still forced to implement all this for people with
> older kernels.

Why?  Things are broken now and people have lived with the bug for
sometime.  While it is possible to work around the problem in userspace,
the best fix is to do it in the kernel.  I wouldn't fix anything but
a regression.

Dave


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] Re: [glibc] tststatic failues, reduced to simp le testcase.
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On Sun, Aug 31, 2003 at 04:47:59PM -0400, John David Anglin wrote:
> > That seems best. The sad fact though is that until I bump
> > min_kernel_version in glibc past the kernel version that last didn't
> > have this fix, I'm still forced to implement all this for people with
> > older kernels.
> 
> Why?  Things are broken now and people have lived with the bug for
> sometime.  While it is possible to work around the problem in userspace,
> the best fix is to do it in the kernel.  I wouldn't fix anything but
> a regression.

It's best to use an example. Debian supports HPPA as an architecture.
I provide Debian with patches to make upstream glibc cvs buildable for
this distribution. If I make all the glibc fixes in the kernel, and
submit to debian minimal patches, glibc will build and subsequent
updates will render all userspace broken. As a happy medium I need to
make, atleast for all usable distributions, a set of patches that fix it
in such a way that we don't force a kernel update (people don't like to
update their kernel). The patches I send upstream will be different.
They will, to the best of my ability, be as clean as possible. I balance
users on one side, and the "right thing" on the other.

I agree, that the kernel, sharing the context switch path, and already
saving r19 should be held responsible for restoring r19. I've already
begun to run into a number of cases where userspace restores aren't
going so well.

c.


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From: Joel Soete <joel.soete@tiscali.be>
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Subject: Re: [parisc-linux] Security Hole in binfmt_som.c ?
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Alan Cox wrote:

>On Sad, 2003-08-30 at 14:15, Matthew Wilcox wrote:
>  
>
>>On Sat, Aug 30, 2003 at 02:42:37PM +0200, Ruediger Scholz wrote:
>>    
>>
>>>binfmt_som.c:216:2: #error "Fix security hole before enabling me"
>>>What's this message about?
>>>      
>>>
>>I don't know.  I wish someone would tell me.  You'd think they'd have the
>>decency to contact the person listed as the author at the top of the file.
>>    
>>
>
>Actually explanations were posted in the previous discussion on this on
>parisc-list.
>
>Someone has to do the equivalent of the 2.4.22 binfmt_elf changes if
>neccessary so that another thread can't change the file handles or 
>steal the exec fd being passed to the loader.
>
>  
>
Yes Alan, it was: 
<http://lists.parisc-linux.org/pipermail/parisc-linux/2003-July/020386.html>

Sorry Willy I trusted that you read it (My bad next time I will advise 
you directly)

Joel



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Xref: news.gmane.org gmane.linux.ports.parisc:19429

parisc,

Thanks to the help of many people (lamont, randolph, james, willy,
dave, grant ... and more) I've gotten glibc 2.3.2 into a working state. 
This set of patches represents our current state. 

There are a number of failures right now, and I'm trying to narrow them
down to into categories before release, I would be much appreciated to
have other people build glibc and report back their list of errors.

===============
    WARNING
===============

This glibc should NOT be installed on any system you value, there are
still some suspect high priority problems. I am merely looking for
people to build and run the testsuite on their setup. Thanks :)

===============
    WARNING
===============

The recipe:

0. Make some room!

mkdir glibc-cvs
cd glibc-cvs

1. Get fresh source and store it for a rainy day.

cvs -z 9 -d :pserver:anoncvs@sources.redhat.com:/cvs/glibc login
{enter "anoncvs" as the password}
cvs -z 9 -d :pserver:anoncvs@sources.redhat.com:/cvs/glibc co libc

tar cvf libc.tar libc

2. Download the newest patches (updated this morning).

wget http://www.baldric.uwo.ca/~carlos/glibc-2.3.2-patches.tar.gz

3. Download some scripts.

wget http://www.baldric.uwo.ca/~carlos/glibc-build.sh
wget http://www.baldric.uwo.ca/~carlos/glibc-upnpatch.sh

4. Run the scripts in this order.

./glibc-upnpatch.sh			(Look for rejects)
./glibc-build.sh hppa			(Build it!)

5. The latter script will output the error from the 'make -k check'
   phase, please report those back to the list.

---

Current errors and their status:

make[2]: *** [/glibc-cvs/build-hppa/iconvdata/bug-iconv3.out] Error 1

	Priority: Unknown.

	o Unknown, problem with our libc_lock functions, this test
	  starts up the iconv code in a non-threaded environment, then
	  dlopen's libpthread to make it reentrant and then starts the
	  iconv code back up again to see if the libc_lock functions
	  work... it deadlocks. 

make[1]: *** [iconvdata/tests] Error 2
make[2]: *** [/glibc-cvs/build-hppa/math/test-fenv.out] Error 1
make[2]: *** [/glibc-cvs/build-hppa/math/test-float.out] Error 1
make[2]: *** [/glibc-cvs/build-hppa/math/test-double.out] Error 1
make[2]: *** [/glibc-cvs/build-hppa/math/test-ifloat.out] Error 1

	Priority: Low.

	o We've had these for ever. Printf problems?

make[1]: *** [math/tests] Error 2
make[2]: *** [/glibc-cvs/build-hppa/stdlib/tst-strtod.out] Error 1
make[2]: *** [/glibc-cvs/build-hppa/stdlib/bug-strtod.out] Error 1

	Priority: Medium.

	o Recent regeressions in 2.3.2, reasons unknown, Randolph had
	  given them a look but it might be mmap related, not tested on
	  a kernel with jejb's fix. Going to try that today.

make[1]: *** [stdlib/tests] Error 2
make[2]: *** [/glibc-cvs/build-hppa/libio/tst-mmap-eofsync.out] Error 1
make[2]: *** [/glibc-cvs/build-hppa/libio/tst-mmap-fflushsync.out] Error 1

	Priority: High.

	o Fixed by jejb's recent patch to 2.6 and backport to 2.4
	  (Thanks!). Actually we know if fixes one of these, have yet to
	  see if it fixes both.

make[1]: *** [libio/tests] Error 2
make[2]: *** [/glibc-cvs/build-hppa/dlfcn/tststatic.out] Error 139

	Priority: High.

	o Static object dlopening RTLD_LAZY and tryint to call the
	  function descriptor stub put in place by RTLD_LAZY. This is a
	  suspect PLABEL problem with the dynamic loader, needs more analysis.
	  Perhaps randolph/dave's patches to binutils for converting
	  relocations might be helpfull here since the dlopen might
	  expect that r19 should be setup for the jump to the stub?

make[1]: *** [dlfcn/tests] Error 2
make[2]: *** [/glibc-cvs/build-hppa/posix/tst-regex.out] Error 139

	Priority: High.

	o Regresssion. I think it's somehow related to restoring r19
	  after a signal handler. Need to think more about the
	  restoration of r19 across different syscalls.

make[2]: [/glibc-cvs/build-hppa/posix/annexc.out] Error 1 (ignored)

	Ignored.

make[1]: *** [posix/tests] Error 2
make[2]: *** [/glibc-cvs/build-hppa/linuxthreads/tst-cancel2.out] Error 1
make[2]: *** [/glibc-cvs/build-hppa/linuxthreads/tst-popen.out] Error 1
make[2]: *** [/glibc-cvs/build-hppa/linuxthreads/tst-popen2.out] Error 1

	Priority: High.

	o Regresssions. Reasons unkown. Children die of SIGSEGV, related
	  to restoring r19 and signal handlers?

make[1]: *** [linuxthreads/tests] Error 2
make[2]: *** [/glibc-cvs/build-hppa/rt/tst-timer.out] Error 139

	Priority: High.

	o Regression. Dies after returning from rt_sigsuspend and we
	  restore r19, perhaps we shouldn't?

make[1]: *** [rt/tests] Error 2
make[2]: *** [/glibc-cvs/build-hppa/elf/neededtest.out] Error 14
make[2]: *** [/glibc-cvs/build-hppa/elf/neededtest2.out] Error 14
make[2]: *** [/glibc-cvs/build-hppa/elf/neededtest3.out] Error 17
make[2]: *** [/glibc-cvs/build-hppa/elf/neededtest4.out] Error 2
make[2]: *** [/glibc-cvs/build-hppa/elf/circleload1.out] Error 9

	Priority: Low

	o Been here since the start of time, related to the fact that we
	  aren't properly initializing _r_debug in the dynamic loader.

make[2]: *** [/glibc-cvs/build-hppa/elf/tst-tls13.out] Error 1

	Priority: Low.

	o We don't even have tls enabled let alone implemented? :)

make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

Thanks to everyone who helped me out!

Cheers,
Carlos.


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Hi,

I think we have another mixup in the CVS:

http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2003-September/033329.html


thanks, Max




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Hi,

I think we have another mixup in the CVS:

http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2003-September/033329.html


thanks, Max





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On Mon, 1 Sep 2003, M. Grabert wrote:

> I think we have another mixup in the CVS:
>
> http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2003-September/033329.html

Mhh, on a second look it just looks like a typo:

2.4.0-test4-pa7 instead of 2.6.0-test4-pa7 in the CVS log ...

sorry about that

 Max




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On Mon, Sep 01, 2003 at 05:44:00PM +0100, M. Grabert wrote:
> 2.4.0-test4-pa7 instead of 2.6.0-test4-pa7 in the CVS log ...

yes - sorry

grant


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The infected file was saved to quarantine with name: 1062448326-RAVh81KVmgH009177.
The file (part0002:document_all.pif) attached to mail (with subject:Re: Details) sent by parisc-linux@lists.parisc-linux.org to agabriel@rcec.london.on.ca
is infected with virus: Win32/Sobig.F@mm.
Cannot clean this file.
The file was successfully deleted by RAV AntiVirus.
------------------------
this is a copy of the e-mail header:



RAV AntiVirus for Linux i386 version: 8.4.0 (snapshot-20020919)

Scan engine 8.11 for i386.
Last update: Mon, 01 Sep 2003 08:58:36 -04
Scanning for 81707 malwares (viruses, trojans and worms).


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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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On Wed, 2003-09-03 at 12:51, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	03/09/03 10:51:13
> 
> Modified files:
> 	.              : Makefile 
> 	drivers/net/tulip: eeprom.c tulip.h tulip_core.c 
> 	drivers/parisc : dino.c 
> 
> Log message:
> Fix card mode dino support and make HSC FX (tulip) card work

Patch is in two parts:  dino bit just corrects some thinkos in the card
mode dino code and adds the actual dino device to the prints (useful for
debugging if you have more than one dino).

The tulip fix simply adds the card to the tulip card table and makes it
all work.

I've tested this on my C360...however, I had to hack the ccio window to
get that to work...I need more time to make this code better.

James

===== drivers/net/tulip/eeprom.c 1.9 vs edited =====
--- 1.9/drivers/net/tulip/eeprom.c	Mon Oct 28 23:14:42 2002
+++ edited/drivers/net/tulip/eeprom.c	Wed Sep  3 11:41:24 2003
@@ -93,8 +93,13 @@
 #ifdef __hppa__
 	unsigned char *ee_data = tp->eeprom;
 
-	if (ee_data[0] == 0x3c && ee_data[1] == 0x10 && 
-		(ee_data[2] == 0x63 || ee_data[2] == 0x61) && ee_data[3] == 0x10) {
+	/* NOTE: The 3x5 FF cards the ee_data is trying to recognise
+	 * need to be brought properly under the tulip initialisation
+	 * structure */
+
+	if ((tp->flags & NEEDS_FAKE_MEDIA_TABLE) 
+	    || (ee_data[0] == 0x3c && ee_data[1] == 0x10 && 
+		(ee_data[2] == 0x63 || ee_data[2] == 0x61) && ee_data[3] == 0x10)) {
 
 		static unsigned char leafdata[] =
 			{ 0x01,       /* phy number */
===== drivers/net/tulip/tulip.h 1.15 vs edited =====
--- 1.15/drivers/net/tulip/tulip.h	Sun May 25 22:14:37 2003
+++ edited/drivers/net/tulip/tulip.h	Wed Sep  3 11:27:00 2003
@@ -64,6 +64,8 @@
 	COMET_MAC_ADDR		= 0x0800,
 	HAS_PCI_MWI		= 0x1000,
 	HAS_PHY_IRQ		= 0x2000,
+	HAS_SWAPPED_SEEPROM	= 0x4000,
+	NEEDS_FAKE_MEDIA_TABLE	= 0x8000,
 };
 

@@ -86,6 +88,7 @@
 	I21145,
 	DM910X,
 	CONEXANT,
+	HP_D21140,
 };
 

===== drivers/net/tulip/tulip_core.c 1.48 vs edited =====
--- 1.48/drivers/net/tulip/tulip_core.c	Tue Aug 19 22:53:17 2003
+++ edited/drivers/net/tulip/tulip_core.c	Wed Sep  3 11:42:48 2003
@@ -191,10 +191,17 @@
   /* RS7112 */
   { "Conexant LANfinity", 256, 0x0001ebef,
 	HAS_MII | HAS_ACPI, tulip_timer },
+
+  /* HP_D21140 */
+  { "HSC 100BaseTX Workstation single port (Digital DS21140 Tulip)", 128,
+    0x0001ebef,	HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | HAS_PCI_MWI 
+    | HAS_SWAPPED_SEEPROM | NEEDS_FAKE_MEDIA_TABLE, tulip_timer },
+
 };
 

 static struct pci_device_id tulip_pci_tbl[] = {
+	{ 0x1011, 0x0009, 0x103c, 0x1062, 0, 0, HP_D21140 },
 	{ 0x1011, 0x0009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DC21140 },
 	{ 0x1011, 0x0019, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DC21143 },
 	{ 0x11AD, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, LC82C168 },
@@ -1459,9 +1466,10 @@
 		int sa_offset = 0;
 		int ee_addr_size = tulip_read_eeprom(ioaddr, 0xff, 8) & 0x40000 ? 8 : 6;
 
-		for (i = 0; i < sizeof(tp->eeprom)/2; i++)
-			((u16 *)ee_data)[i] =
-				le16_to_cpu(tulip_read_eeprom(ioaddr, i, ee_addr_size));
+		for (i = 0; i < sizeof(tp->eeprom)/2; i++) {
+			u16 data = tulip_read_eeprom(ioaddr, i, ee_addr_size);
+			((u16 *)ee_data)[i] = (tp->flags & HAS_SWAPPED_SEEPROM) ? data : le16_to_cpu(data);
+		}
 
 		/* DEC now has a specification (see Notes) but early board makers
 		   just put the address in the first EEPROM locations. */
===== drivers/parisc/dino.c 1.10 vs edited =====
--- 1.10/drivers/parisc/dino.c	Sun Aug 24 06:50:06 2003
+++ edited/drivers/parisc/dino.c	Wed Sep  3 11:48:51 2003
@@ -401,23 +401,7 @@
 	{
 		int irq;
 
-		/*
-		 * Perform a binary search on set bits.
-		 * `Less than Fatal' and PS2 interrupts aren't supported.
-		 */
-		if (mask & 0xf) {
-			if (mask & 0x3) {
-				irq = (mask & 0x1) ? 0 : 1; /* PCI INT A, B */
-			} else {
-				irq = (mask & 0x4) ? 2 : 3; /* PCI INT C, D */
-			}
-		} else {
-			if (mask & 0x30) {
-				irq = (mask & 0x10) ? 4 : 5; /* PCI INT E, F */
-			} else {
-				irq = (mask & 0x40) ? 6 : 10; /* GSC, RS232 */
-			}
-		}
+		irq = __ffs(mask);
 
 		mask &= ~(1<<irq);
 
@@ -479,9 +463,18 @@
 	int i;
 	struct dino_device *dino_dev = DINO_DEV(parisc_walk_tree(bus->dev));
 	struct resource *res;
+	char name[128];
+	int size;
 
 	res = &dino_dev->hba.lmmio_space;
 	res->flags = IORESOURCE_MEM;
+	size = snprintf(name, sizeof(name), "Dino LMMIO (%s)", bus->dev->bus_id);
+	res->name = kmalloc(size+1, GFP_KERNEL);
+	if(res->name)
+		strcpy((char *)res->name, name);
+	else
+		res->name = dino_dev->hba.lmmio_space.name;
+	
 
 	if (ccio_allocate_resource(dino_dev->hba.dev, res, _8MB,
 				(unsigned long) 0xfffffffff0000000UL | _8MB,
@@ -521,7 +514,7 @@
 	** Set Latency Timer to 0xff (not a shared bus)
 	** Set CACHELINE_SIZE.
 	*/
-	dino_cfg_write(dev->bus, dev->devfn, PCI_CACHE_LINE_SIZE, 16, 0xff00 | L1_CACHE_BYTES/4); 
+	dino_cfg_write(dev->bus, dev->devfn, PCI_CACHE_LINE_SIZE, 2, 0xff00 | L1_CACHE_BYTES/4); 
 
 	/*
 	** Program INT_LINE for card-mode devices.
@@ -532,13 +525,14 @@
 	** "-1" converts INTA-D (1-4) to PCIINTA-D (0-3) range.
 	** The additional "-1" adjusts for skewing the IRQ<->slot.
 	*/
-	dino_cfg_read(dev->bus, dev->devfn, PCI_INTERRUPT_PIN, 8, &irq_pin); 
+	dino_cfg_read(dev->bus, dev->devfn, PCI_INTERRUPT_PIN, 1, &irq_pin); 
+	printk("DINO CONFIG READ GIVES irq_pin %d\n", irq_pin);
 	dev->irq = (irq_pin + PCI_SLOT(dev->devfn) - 1) % 4 ;
 
 	/* Shouldn't really need to do this but it's in case someone tries
 	** to bypass PCI services and look at the card themselves.
 	*/
-	dino_cfg_write(dev->bus, dev->devfn, PCI_INTERRUPT_LINE, 8, dev->irq); 
+	dino_cfg_write(dev->bus, dev->devfn, PCI_INTERRUPT_LINE, 1, dev->irq); 
 }
 

@@ -818,8 +812,15 @@
 {
 	struct dino_device *dino_dev;	// Dino specific control struct
 	const char *version = "unknown";
-	const char *name = "Dino";
+	const int name_len = 32;
+	char *name;
 	int is_cujo = 0;
+
+	name = kmalloc(name_len, GFP_KERNEL);
+	if(name)
+		snprintf(name, name_len, "Dino %s", dev->dev.bus_id);
+	else
+		name = "Dino";
 
 	if (is_card_dino(&dev->id)) {
 		version = "3.x (card mode)";



From - Thu Nov 08 21:29:05 2018
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X-Mozilla-Keys:                                                                                 
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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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Xref: news.gmane.org gmane.linux.ports.parisc:19437

On Wed, 2003-09-03 at 16:03, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	03/09/03 14:03:00
> 
> Modified files:
> 	.              : Makefile 
> 	drivers/parisc : ccio-dma.c dino.c 
> 
> Log message:
> Add card mode dino support for machines with a CCIO.
> 
> This is rather simplistic: basically it simply tries to expand the
> existing ccio window by the dino card mode size (currently 8MB).  This could
> easily fail if there's no room on either side.
> 
> Unfortunately, the correct fix (to reprogram the ccio to take into account
> card mode dinos before beginning bus scanning) is rather complex.
> 
> Also fixed the allocation failure case to delete the devices on the bus
> so drivers don't try attaching to them.

Index: ccio-dma.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/ccio-dma.c,v
retrieving revision 1.3
diff -u -p -r1.3 ccio-dma.c
--- ccio-dma.c	2 Sep 2003 18:42:42 -0000	1.3
+++ ccio-dma.c	3 Sep 2003 19:59:34 -0000
@@ -1534,13 +1534,74 @@ static void __init ccio_init_resources(s
 			(unsigned long)&ioc->ioc_hpa->io_io_low_hv);
 }
 
-static void expand_ioc_area(struct ioc *ioc, unsigned long size,
-		unsigned long min, unsigned long max, unsigned long align)
+static int expand_resource(struct resource *res, unsigned long size,
+			   unsigned long align)
 {
-#ifdef NASTY_HACK_FOR_K_CLASS
-	__raw_writel(0xfffff600, (unsigned long)&(ioc->ioc_hpa->io_io_high));
-	ioc->mmio_region[0].end = 0xf5ffffff;
-#endif
+	struct resource *temp_res;
+	unsigned long start = res->start;
+	unsigned long end ;
+
+	/* see if we can expand above */
+	end = (res->end + size + align - 1) & ~(align - 1);;
+	
+	temp_res = __request_region(res->parent, res->end, end - res->end,
+				    "expansion");
+	if(!temp_res) {
+		/* now try below */
+		start = ((res->start - size + align) & ~(align - 1)) - align;
+		end = res->end;
+		temp_res = __request_region(res->parent, start, size,
+					    "expansion");	
+		if(!temp_res) {
+			return -ENOMEM;
+		}
+	} 
+	release_resource(temp_res);
+	temp_res = res->parent;
+	release_resource(res);
+	res->start = start;
+	res->end = end;
+
+	/* This could be caused by some sort of race.  Basically, if
+	 * this tripped something stole the region we just reserved
+	 * and then released to check for expansion */
+	BUG_ON(request_resource(temp_res, res) != 0);
+
+	return 0;
+}
+
+static void expand_ioc_area(struct resource *parent, struct ioc *ioc,
+			    unsigned long size,	unsigned long min,
+			    unsigned long max, unsigned long align)
+{
+	if(ioc == NULL)
+		/* no IOC, so nothing to expand */
+		return;
+
+	if (expand_resource(parent, size, align) != 0) {
+		printk(KERN_ERR "Unable to expand %s window by 0x%lx\n",
+		       parent->name, size);
+		return;
+	}
+
+	/* OK, we have the memory, now expand the window */
+	if (parent == &ioc->mmio_region[0]) {
+		__raw_writel(((parent->start)>>16) | 0xffff0000,
+			     (unsigned long)&(ioc->ioc_hpa->io_io_low));
+		__raw_writel(((parent->end)>>16) | 0xffff0000,
+			     (unsigned long)&(ioc->ioc_hpa->io_io_high));
+	} else if (parent == &ioc->mmio_region[1]) {
+		__raw_writel(((parent->start)>>16) | 0xffff0000,
+			     (unsigned long)&(ioc->ioc_hpa->io_io_low_hv));
+		__raw_writel(((parent->end)>>16) | 0xffff0000,
+			     (unsigned long)&(ioc->ioc_hpa->io_io_high_hv));
+	} else {
+		/* This should be impossible.  It means
+		 * expand_ioc_area got called with a resource that
+		 * didn't belong to the ioc
+		 */
+		BUG();
+	}
 }
 
 static struct resource *ccio_get_resource(struct ioc* ioc,
@@ -1574,7 +1635,7 @@ int ccio_allocate_resource(const struct 
 			alignf_data))
 		return 0;
 
-	expand_ioc_area(ioc, size, min, max, align);
+	expand_ioc_area(parent, ioc, size, min, max, align);
 	return allocate_resource(parent, res, size, min, max, align, alignf,
 			alignf_data);
 }
Index: dino.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/dino.c,v
retrieving revision 1.3
diff -u -p -r1.3 dino.c
--- dino.c	3 Sep 2003 16:51:12 -0000	1.3
+++ dino.c	3 Sep 2003 19:59:36 -0000
@@ -480,7 +480,18 @@ dino_card_setup(struct pci_bus *bus, uns
 				(unsigned long) 0xfffffffff0000000UL | _8MB,
 				0xffffffffffffffffUL &~ _8MB, _8MB,
 				NULL, NULL) < 0) {
-		printk(KERN_WARNING "Dino: Failed to allocate memory region\n");
+		struct list_head *ln, *tmp_ln;
+
+		printk(KERN_ERR "Dino: cannot attach bus %s\n",
+		       bus->dev->bus_id);
+		/* kill the bus, we can't do anything with it */
+		list_for_each_safe(ln, tmp_ln, &bus->devices) {
+			struct pci_dev *dev = pci_dev_b(ln);
+
+			list_del(&dev->global_list);
+			list_del(&dev->bus_list);
+		}
+			
 		return;
 	}
 	bus->resource[1] = res;
@@ -526,7 +537,6 @@ dino_card_fixup(struct pci_dev *dev)
 	** The additional "-1" adjusts for skewing the IRQ<->slot.
 	*/
 	dino_cfg_read(dev->bus, dev->devfn, PCI_INTERRUPT_PIN, 1, &irq_pin); 
-	printk("DINO CONFIG READ GIVES irq_pin %d\n", irq_pin);
 	dev->irq = (irq_pin + PCI_SLOT(dev->devfn) - 1) % 4 ;
 
 	/* Shouldn't really need to do this but it's in case someone tries



From - Thu Nov 08 21:29:06 2018
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X-Mozilla-Keys:                                                                                 
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From: Ruediger Scholz <rscholz@hrzpub.tu-darmstadt.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Kernel crash with 2.6.0-test4-pa8 on 715/100
Date: Thu, 04 Sep 2003 13:57:31 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:19438

This is a multi-part message in MIME format.
--------------030807030904080702090800
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 7bit

Hi there,

I tried to boot 2.6.0-test4-pa8 on my HP 715/100, but it crashed right 
after the message "Freeing unused kernel memory...". I'm using debian 
testing with devfs and gcc-3.3.1.
I think the pb is devfs, so I will try to boot a kernel without it.
Bootlog is attached, Config, System.map is here: 
http://rscholz.bluehash.de/parisc

Greetings,
    Ruediger

--------------030807030904080702090800
Content-Type: text/plain;
 name="gandalf-2.6.0-test4-pa8.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="gandalf-2.6.0-test4-pa8.log"



----------------------------------------------------------------------------
BootRom Version    1.6  
Memory Size:  128 MB
----------------------------------------------------------------------------




(c) Copyright 1990-1994, Hewlett-Packard Company.
All rights reserved

Press <ESCAPE> to stop boot sequence.
----------------------------------------------------------------------------
Command                                Description
-------                                -----------
Auto [boot|search] [on|off]            Set/show auto mode
Boot [pri|alt [isl]]                   Boot from primary or alternate path
Boot [scsi|eisa.<slot>[.<addr>]] [isl] Boot from SCSI or EISA
Boot lan[.<addr>] [install] [isl]      Boot from LAN
Chassis [on|off]                       Set/show chassis codes display mode
DefaultSS                              Reboot and set EEPROM to default values
Diagnostic [on|off]                    Set/show diagnostic boot mode
Fastboot [on|off]                      Set/show fast boot mode
Help                                   Show this command menu
Information                            Show system information
LanAddress                             Show LAN station addresses
Monitor [<DEV>[.<type>]]               Set/show graphics monitor type
                                       (<DEV>=graphics|graphics_<1|2>)
Path [pri|alt [<DEV>[.<addr>]]]        Set/show boot source path
                                       (<DEV>=lan|scsi|eisa.<slot>)
Path [console [<DEV>[.<parm>]]]        Set/show boot console path
                                       (<DEV>=<RS232>|<GRAPH>
                                        <RS232>=rs232|rs232_2
                                        <parm>=<baud>.<length>.<parity>
                                        <GRAPH>=graphics|graphics_<1|2>
                                        <parm>=<monitor>)
Path [keyboard [hil|ps2]]              Set/show boot keyboard path
Pim [hpmc|toc|lpmc]                    Show PIM info
Search [ipl] [scsi|eisa]               Show potential boot devices
Search [ipl] [lan [install]]           Show potential boot LAN devices
Secure [on|off]                        Set/show security mode
----------------------------------------------------------------------------
BOOT_ADMIN> bo pri ipl





Attempting to boot.
Loading Initial Program Loader

IPL successfully loaded

Booting
palo ipl 1.2 root@b2000 Tue Jan 14 13:13:07 MST 2003

Partition Start(MB) End(MB) Id Type

1               1      22   f0 Palo

2              23      64   83 ext2

3              65     194   82 swap

4             195    2046   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 3223985 bytes @ 0x48000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).Current command line:
2/vmlinux root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102
 0: 2/vmlinux
 1: root=/dev/sda4 2: HOME=/
 3: devfs=mount
 4: console=ttyS0
 5: TERM=vt102

Edit which field?
(or 'b' to boot with this command line)? 0
2/vmlinux-2.6.0
Current command line:
2/vmlinux-2.6.0 root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102
 0: 2/vmlinux-2.6.0
 1: root=/dev/sda4
 2: HOME=/
 3: devfs=mount
 4: console=ttyS0
 5: TERM=vt102

Edit which field?
(or 'b' to boot with this command line)? b

Command line for kernel: 'root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.0'
Selected kernel: /vmlinux-2.6.0 from partition 2
ELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 2214104 mediaptr 0x1000
Segment 1 load 0031e000 size 356536 mediaptr 0x21e000
Segment 2 load 00378000 size 323711 mediaptr 0x276000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.0-test4-pa8 (ruediger@gandalf) (gcc-Version 3.3.1 20030626 (Debian prerelease)) #1 Wed Sep 3 13:23:29 CEST 2003
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 000060b0 00000481 00000000 00000000 77b661a7 00000000 00000004 00000072 00000072
vers  0000000b
model 9000/715
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
  DMA zone: 32768 pages, LIFO batch:8
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Building zonelist for node : 0
Kernel command line: root=/dev/sda4 HOME=/ devfs=mount console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.0
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Calibrating delay loop... 99.73 BogoMIPS
Memory: 126480k available
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
-> /dev
-> /dev/console
-> /root
POSIX conformance testing by UNIFIX
Initializing RT netlink socket
EISA bus registered
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf4000000 [0], versions 0x4, 0x0, 0x77
2. Mirage GSC Builtin Graphics (10) at 0xf8000000 [1], versions 0x13, 0x0, 0x85
3. Mirage Core BA (11) at 0xf0100000 [2], versions 0x29, 0x0, 0x81
4. Mirage Core SCSI (10) at 0xf0106000 [2/0/1], versions 0x29, 0x0, 0x82
5. Mirage Core LAN (802.3) (10) at 0xf0107000 [2/0/2], versions 0x29, 0x0, 0x8a
6. Mirage Core RS-232 (10) at 0xf0105000 [2/0/4], versions 0x29, 0x0, 0x8c
7. Mirage Core Centronics (10) at 0xf0102000 [2/0/6], versions 0x29, 0x0, 0x74
8. Mirage Audio (10) at 0xf0104000 [2/0/8], versions 0x29, 0x0, 0x7b
9. Mirage Core PC Floppy (10) at 0xf010a000 [2/0/10], versions 0x29, 0x0, 0x83
10. Mirage Core PS/2 Port (10) at 0xf0108000 [2/0/11], versions 0x29, 0x0, 0x84
11. Mirage Core PS/2 Port (10) at 0xf0108100 [2/0/12], versions 0x29, 0x0, 0x84
12. Mirage Wax BA (11) at 0xf0200000 [5], versions 0x13, 0x0, 0x8e
13. Mirage 100 Wax HIL (10) at 0xf0201000 [5/0/1], versions 0x13, 0x0, 0x73
14. Mirage Wax RS-232 (10) at 0xf0202000 [5/0/2], versions 0x13, 0x0, 0x8c
15. Mirage 100 (0) at 0xfffbe000 [8], versions 0x60b, 0x0, 0x4
16. Memory (1) at 0xfffbf000 [9], versions 0x4b, 0x0, 0x9
CPU(s): 1 x PA7100LC (PCX-L) at 100.000000 MHz
Lasi version 0 at 0xf0100000 found.
LED display at f00e0000 registered
Wax at 0xf0200000 found.
BIO: pool of 256 setup, 14Kb (56 bytes/bio)
biovec pool[0]:   1 bvecs: 244 entries (12 bytes)
biovec pool[1]:   4 bvecs: 244 entries (48 bytes)
biovec pool[2]:  16 bvecs: 244 entries (192 bytes)
biovec pool[3]:  64 bvecs: 244 entries (768 bytes)
biovec pool[4]: 128 bvecs: 122 entries (1536 bytes)
biovec pool[5]: 256 bvecs:  61 entries (3072 bytes)
SCSI subsystem initialized
STI GSC/PCI core graphics driver Version 0.9a
STI byte mode ROM at f4000000, hpa at f4000000
STI id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI device: HPA4071A
STI word mode ROM at f0024000, hpa at f8000000
STI id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1024
fb0: stifb 1280x1024-8 frame buffer device, id: 2bcb015a, mmio: 0xf4100000
fb1: stifb 1024x768-8 frame buffer device, id: 2b4ded6d, mmio: 0xf8100000
Console: switching to colour frame buffer device 160x64
pty: 256 Unix98 ptys configured
Journalled Block Device driver loaded
devfs: v1.22 (20021013) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
Gecko-style soft power switch enabled.
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing enabled
ttyS0 at MMIO 0xf0105800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xf0202800 (irq = 121) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xf0107000, IRQ 87
eth0: 82596 at 0xf0107000, 08 00 09 7A DC 08 IRQ 87.
82596.c $Revision: 1.29 $
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2 
scsi0 : LASI SCSI 53c700
Using anticipatory scheduling elevator
scsi0: (2:0) Synchronous at offset 8, period 100ns
  Vendor: PLEXTOR   Model: CD-ROM PX-20TS    Rev: 1.01
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi0: (3:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST32430N          Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
scsi0: (3:0) Enabling Tag Command Queuing
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
SCSI device sda: drive cache: write back
 /dev/scsi/host0/bus0/target3/lun0: p1 p2 p3 p4
Attached scsi disk sda at scsi0, channel 0, id 3, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.12
Attached scsi generic sg0 at scsi0, channel 0, id 2, lun 0,  type 5
Attached scsi generic sg1 at scsi0, channel 0, id 3, lun 0,  type 0
Console: switching to colour frame buffer device 160x64
mice: PS/2 mouse device common for all mice
Keyboard initialization sequence failled
input: PS/2 keyboard port at 0xf0108000 (irq 69) found and attached
input: PS/2 mouse port at 0xf0108100 (irq 69) found and attached
HP SDC: HP SDC at 0xf0201000, IRQ 126 (NMI IRQ 125)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
oprofile: using timer interrupt.
NET4: Linux TCP/IP 1.0 for NET4.0
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 320k freed

Stack Dump:
 10558758:  10558758 0000000e 10558340 10320010 
 10558748:  10378fb8 00000001 00000000 00000000 
 10558738:  00000000 00007b94 00000297 10133bd0 
 10558728:  00000000 00000000 0000003a 000001db 
 10558718:  10558340 10335810 00000000 105583c0 
 10558708:  0000001a 00000000 00000b98 00000000 
 105586f8:  10592288 00000050 105586d4 10106318 
 105586e8:  103f0aec ffffffdd 103f0810 103f0810 
 105586d8:  0000000e 105586d0 103f259c 105586c8 
 105586c8:  105586c8 00000001 ffffffff 00000000 
 105586b8:  100df4e0 00000001 10570e00 10127688 
 105586a8:  103f0aec ffffffdd 103f0810 103f0810 
 10558698:  0000000e 1032e088 00000b00 00000008 
 10558688:  00000002 ffffffdd 103f0810 102f7000 
 10558678:  105583a8 00000001 100a4d00 10127424 
 10558668:  10592200 00000000 10592200 10584060 
 10558658:  00000000 00000000 10320080 80000000 
 10558648:  00000000 103ca010 00000002 100de370 
 10558638:  00000000 105993cf 10558614 10107254 
 10558628:  1010d310 00000000 00000000 00000000 
 10558618:  00000000 00000000 10320080 80000000 
 10558608:  00000000 103ca010 00000002 100ad640 
 105585f8:  10558388 100be800 00000001 1010a088 
 105585e8:  00000001 00000001 100a4d00 00000000 
 105585d8:  0000000f 0000190e 103d09b8 0000190e 
 105585c8:  0000192c 103cf810 10558500 100a4d00 
 105585b8:  00000000 105583a8 00000001 1010a068 
 105585a8:  00000000 00000000 00000001 00000001 
 10558598:  0000000f 0000192c 00000b98 00000000 
 10558588:  48930130 0000000e 10320010 00000000 
 10558578:  105678e0 00000000 00000008 101fa024 
 10558568:  101fa020 00000000 00000000 00000000 
 10558558:  00000000 00000000 00000000 00000000 
 10558548:  00000000 00000000 00000000 00000000 
 10558538:  41000000 00000000 40800000 00000000 
 10558528:  40000000 00000000 40000000 7fffffff 
 10558518:  41800000 00000000 40200000 00000000 
 10558508:  40200000 00000000 40300000 00000000 
 105584f8:  41000000 00000000 40800000 7fffffff 
 105584e8:  7fffffff 00000000 41000000 7fffffff 
 105584d8:  7fffffff 00000000 40800000 00000000 
 105584c8:  41000000 7fffffff 7fffffff 00000000 
 105584b8:  00000000 00000010 00000010 00000000 
 105584a8:  41800000 00000000 00000000 00000000 
 10558498:  00000000 ffffffff 7f7fffff ffffffff 
 10558488:  7f7fffff 7fffffff 7fffffff 00000000 
 10558478:  40800000 00000000 00000000 00000000 
 10558468:  00000000 00000000 00000000 00000000 
 10558458:  00000000 00000000 00000000 00000000 
 10558448:  00000000 00000000 000d081f 101fad90 
 10558438:  105583c0 00000005 00000b00 1031e010 
 10558428:  1033c528 00000002 105582cc 00000002 
 10558418:  10110cc0 00000501 00000000 00000001 
 10558408:  00000000 00000002 f000b858 f0000704 
 105583f8:  00000001 105582cc 00000000 10378fb8 
 105583e8:  10320010 103cf810 100b05a0 00000002 
 105583d8:  00000002 00000008 00000b00 1032e088 
 105583c8:  101fa01c 1033c010 0004ff0f 00000000 
 105583b8:  10558340 00000060 00000000 101fa01c 
 105583a8:  003cf6c0 f0105800 003ca380 105ded60 
 10558398:  105e0c60 00000000 105dedcc 105ded60 
 10558388:  105e0c60 17ff57a0 105dedcc f0000704 
 10558378:  1032e088 00000b00 100b5820 00000001 
 10558368:  00000002 100b05a0 103cf810 10320010 

Kernel addresses on the stack:
 [<1011f4cc>] scheduler_tick+0x84/0x454
 [<10106068>] parisc_terminate+0x60/0xb4
 [<10133bd0>] rcu_process_callbacks+0x8c/0xf0
 [<10106318>] handle_interruption+0x25c/0x564
 [<10127688>] tasklet_action+0x7c/0xdc
 [<10127424>] do_softirq+0xf0/0xf8
 [<10107254>] do_cpu_irq_mask+0x88/0xfc
 [<1010a088>] intr_check_sig+0x0/0xc
 [<1010a068>] intr_return+0x0/0x14
 [<101fa024>] init_dev+0x5c/0x4c8
 [<10378fb8>] start_kernel+0x4/0x200
 [<101fa01c>] init_dev+0x54/0x4c8
 [<101fab10>] tty_open+0x90/0x394
 [<10165560>] do_lookup+0xb0/0xc8
 [<10160fe8>] chrdev_open+0xac/0x144
 [<10157eb0>] get_empty_filp+0x60/0x124
 [<101b0f5c>] devfs_open+0xa0/0xd0
 [<101564e4>] dentry_open+0x12c/0x1b0
 [<101563b0>] filp_open+0x68/0x70
 [<10123c2c>] printk+0x140/0x1b4
 [<1015684c>] sys_open+0x70/0xb0
 [<101002b0>] init+0x5c/0x150
 [<10109c5c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=26 regs=105583c0 (Addr=00000b98)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 1033c010 101fa01c 1032e088
r04-07  00000b00 00000008 00000002 00000002
r08-11  100b05a0 103cf810 10320010 10378fb8
r12-15  00000000 105582cc 00000001 f0000704
r16-19  f000b858 00000002 00000000 00000001
r20-23  00000000 00000501 10110cc0 00000002
r24-27  105582cc 00000002 1033c528 1031e010
r28-31  00000b00 00000005 105583c0 101fad90
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101fa020 101fa024
 IIR: 48930130    ISR: 00000000  IOR: 00000b98
 CPU:        0   CR30: 10558000 CR31: 1036d000
 ORIG_R28: 105678e0
 IAOQ[0]: init_dev+0x58/0x4c8
 IAOQ[1]: init_dev+0x5c/0x4c8
 RP(r2): init_dev+0x54/0x4c8

--------------030807030904080702090800--



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From: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
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Subject: [parisc-linux] [PATCH] add MODULE_ALIAS_LDISC to asm-parisc/termios.h
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Hi,

	I noticed this one on parisc64 with the latest bk tree:

  CC [M]  drivers/char/n_hdlc.o
drivers/char/n_hdlc.c:985: parse error before numeric constant
drivers/char/n_hdlc.c:985: warning: type defaults to `int' in declaration of `MODULE_ALIAS_LDISC'
drivers/char/n_hdlc.c:985: warning: function declaration isn't a prototype
drivers/char/n_hdlc.c:985: warning: data definition has no type or storage classmake[2]: *** [drivers/char/n_hdlc.o] Error 1
make[1]: *** [drivers/char] Error 2
make: *** [drivers] Error 2

	This patch makes it compile, doing the same thing that was done to
include/asm-i386/termios.h, please see if this is acceptable, if it is I can
provide the same patch for all the other arches.

- Arnaldo

===== include/asm-parisc/termios.h 1.4 vs edited =====
--- 1.4/include/asm-parisc/termios.h	Sat Jul 20 06:52:25 2002
+++ edited/include/asm-parisc/termios.h	Thu Sep  4 13:43:57 2003
@@ -101,6 +101,8 @@
 #define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
 #define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
 
+#define MODULE_ALIAS_LDISC(ldisc) \
+        MODULE_ALIAS("tty-ldisc-" __stringify(ldisc))
 #endif	/* __KERNEL__ */
 
 #endif	/* _PARISC_TERMIOS_H */


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Subject: Re: [parisc-linux] Kernel crash with 2.6.0-test4-pa8 on 715/100
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On Thu, Sep 04, 2003 at 01:57:31PM +0200, Ruediger Scholz wrote:
> I tried to boot 2.6.0-test4-pa8 on my HP 715/100, but it crashed right 
> after the message "Freeing unused kernel memory...". I'm using debian 
> testing with devfs and gcc-3.3.1.
> I think the pb is devfs, so I will try to boot a kernel without it.
> Bootlog is attached, Config, System.map is here: 
> http://rscholz.bluehash.de/parisc

I'm seeing the same thing on my 712 without devfs.  Not sure what the
problem is, and I'm having a hard time getting that box back up as it has
a broken root filesystem (damn tar for being linked against libpthread!)

I decoded what's going on a little bit.  We're calling
drivers/char/tty_io.c::init_dev() with a `driver' variable set to
0x00000b00.  Quite what's gone wrong to get this to happen, I'm not sure.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] Re: [PATCH] add MODULE_ALIAS_LDISC to asm-parisc/termios.h
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On Thu, Sep 04, 2003 at 10:53:15AM -0300, Arnaldo Carvalho de Melo wrote:
> 	This patch makes it compile, doing the same thing that was done to
> include/asm-i386/termios.h, please see if this is acceptable, if it is I can
> provide the same patch for all the other arches.

if it's the same for all arches, why not put it in <linux/termios.h>?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] [PATCH] add MODULE_ALIAS_LDISC to
	asm-parisc/termios.h
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On Thu, 2003-09-04 at 09:53, Arnaldo Carvalho de Melo wrote:
> +#define MODULE_ALIAS_LDISC(ldisc) \
> +        MODULE_ALIAS("tty-ldisc-" __stringify(ldisc))

These are the strings used to identify the required line discipline
module to kmod, aren't they?

Since modprobe.conf seems to be generated without much regard for
architectures, is there any reason why this definition should differ
amongst architectures?  I think the answer's "no", so I think this fix
should be in linux/termios.h (or somewhere architecture independent).

James




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On Thu, 2003-09-04 15:06:15 +0100, Matthew Wilcox <willy@debian.org>
wrote in message <20030904140615.GN18654@parcelfarce.linux.theplanet.co.uk>:
> On Thu, Sep 04, 2003 at 01:57:31PM +0200, Ruediger Scholz wrote:
> > I tried to boot 2.6.0-test4-pa8 on my HP 715/100, but it crashed right=
=20
> > after the message "Freeing unused kernel memory...". I'm using debian=
=20
> > testing with devfs and gcc-3.3.1.
> > I think the pb is devfs, so I will try to boot a kernel without it.
> > Bootlog is attached, Config, System.map is here:=20
> > http://rscholz.bluehash.de/parisc
>=20
> I'm seeing the same thing on my 712 without devfs.  Not sure what the
> problem is, and I'm having a hard time getting that box back up as it has
> a broken root filesystem (damn tar for being linked against libpthread!)

Hmmm... My 712/60 works flawlessly:

jbglaw@hp712-1:~$ uname -a
Linux hp712-1 2.6.0-test4-pa8 #1 Wed Sep 3 19:16:42 CEST 2003 parisc GNU/Li=
nux
jbglaw@hp712-1:~$ uptime
 16:22:22 up 16:58,  1 user,  load average: 0.23, 0.05, 0.02

However, I've not touched the keyboard since the box is standing
somewhere in my cellar and only used by network... Want to see my
=2Econfig?

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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Hi there,

just another question: I just ran top to look what processe are running 
and noticed that ksoftirqd is up to 98% CPU time. I remember that there 
was a problem that s.th in the kernel eats up a lot oft CPU time. Wasn't 
it solved?

Ruediger



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Subject: Re: [parisc-linux] ksoftirqd is using over 90% CPU (?!)
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Ruediger Scholz wrote:

> Hi there,
>
> just another question: I just ran top to look what processe are 
> running and noticed that ksoftirqd is up to 98% CPU time. I remember 
> that there was a problem that s.th in the kernel eats up a lot oft CPU 
> time. Wasn't it solved?
>
> Ruediger
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
Hi,

Sorry if i do not follow your thread but this looks like a very old pb.
Update your kernel (I do not remember exactly what is installed with 
woody but all later) would help.

hth,
    Joel



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Subject: Re: [parisc-linux] Kernel crash with 2.6.0-test4-pa8 on 715/100
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Xref: news.gmane.org gmane.linux.ports.parisc:19446

Hi Willy,

Matthew Wilcox wrote:

>On Thu, Sep 04, 2003 at 01:57:31PM +0200, Ruediger Scholz wrote:
>  
>
>>I tried to boot 2.6.0-test4-pa8 on my HP 715/100, but it crashed right 
>>after the message "Freeing unused kernel memory...". I'm using debian 
>>testing with devfs and gcc-3.3.1.
>>I think the pb is devfs, so I will try to boot a kernel without it.
>>Bootlog is attached, Config, System.map is here: 
>>http://rscholz.bluehash.de/parisc
>>    
>>
>
>I'm seeing the same thing on my 712 without devfs.  Not sure what the
>problem is, and I'm having a hard time getting that box back up as it has
>a broken root filesystem (damn tar for being linked against libpthread!)
>  
>
Is that libpthread the cause of your broken fs?

Thanks in advance for advise,
    Joel




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Ruediger Scholz wrote:

> Hi there,
>
> I tried to boot 2.6.0-test4-pa8 on my HP 715/100, but it crashed right 
> after the message "Freeing unused kernel memory...". I'm using debian 
> testing with devfs and gcc-3.3.1.
> I think the pb is devfs, so I will try to boot a kernel without it.
> Bootlog is attached, Config, System.map is here: 
> http://rscholz.bluehash.de/parisc

May I ask you how do you build your .config?
I presume that it is a custom one if you tried devfs. hmm isn't it 
obsolete now?

iirc i encounter the same pb with my b2k. I find a work around by 
accident: removing all kind of console (pdc, serial) make it boot. I 
tried to obtain a patch for a network console for 2.6 but without success :(

Sorry to be not more helpfull but even a toc didn't help to analyse this 
pb :(

Thanks for info,
    Joel



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On Thu, Sep 04, 2003 at 08:35:56PM +0000, Joel Soete wrote:
> Hi Willy,
> >I'm seeing the same thing on my 712 without devfs.  Not sure what the
> >problem is, and I'm having a hard time getting that box back up as it has
> >a broken root filesystem (damn tar for being linked against libpthread!)
> >
> Is that libpthread the cause of your broken fs?

no, a 2.4 kernel doesn't have the same problem.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi Joel,

Joel Soete schrieb:

> Hi,
>
> Sorry if i do not follow your thread but this looks like a very old pb.
> Update your kernel (I do not remember exactly what is installed with 
> woody but all later) would help. 

Nice try ;) But this happens with kernel 2.4.22-pa3 :-o

>
>
> hth,
>    Joel
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>




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Ruediger Scholz wrote:

> Hi Joel,
>
> Joel Soete schrieb:
>
>> Hi,
>>
>> Sorry if i do not follow your thread but this looks like a very old pb.
>> Update your kernel (I do not remember exactly what is installed with 
>> woody but all later) would help. 
>
>
> Nice try ;) But this happens with kernel 2.4.22-pa3 :-o

Sorry, and the last test i did was 22-pa2 but i didn't notice this pb. 
(for the moment I am far away from my parisc box :( ).
Anyway I think that those 2 info would help pa's hacker's to locate the 
actual pb ;)

Thanks,
    Joel




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On Thu, Sep 04, 2003 at 10:00:00PM +0100, Matthew Wilcox wrote:
> On Thu, Sep 04, 2003 at 08:35:56PM +0000, Joel Soete wrote:
> > Hi Willy,
> > >I'm seeing the same thing on my 712 without devfs.  Not sure what the
> > >problem is, and I'm having a hard time getting that box back up as it has
> > >a broken root filesystem (damn tar for being linked against libpthread!)
> > >
> > Is that libpthread the cause of your broken fs?
> 
> no, a 2.4 kernel doesn't have the same problem.

Signal related? What does the problem look like?

c.


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On Thu, Sep 04, 2003 at 09:39:31PM +0200, Ruediger Scholz wrote:
> Hi there,
> 
> just another question: I just ran top to look what processe are running 
> and noticed that ksoftirqd is up to 98% CPU time. I remember that there 
> was a problem that s.th in the kernel eats up a lot oft CPU time. Wasn't 
> it solved?
> 
> Ruediger

Read the FAQ:
http://www.parisc-linux.org/faq/index.html#ksoftirqd

c.


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On Thu, Sep 04, 2003 at 05:51:27PM -0400, Carlos O'Donell wrote:
> On Thu, Sep 04, 2003 at 10:00:00PM +0100, Matthew Wilcox wrote:
> > no, a 2.4 kernel doesn't have the same problem.
> 
> Signal related? What does the problem look like?

i said earlier; tty_open calls init_dev() with a bad `driver' parameter.
my WAG i can't verify because fucking GNU link *ls* against libpthread
is that /dev/console is screwed up.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] Re: [PATCH] add MODULE_ALIAS_LDISC to asm-parisc/termios.h
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In message <20030904141928.GO18654@parcelfarce.linux.theplanet.co.uk> you write
:
> On Thu, Sep 04, 2003 at 10:53:15AM -0300, Arnaldo Carvalho de Melo wrote:
> > 	This patch makes it compile, doing the same thing that was done to
> > include/asm-i386/termios.h, please see if this is acceptable, if it is I can
> > provide the same patch for all the other arches.
> 
> if it's the same for all arches, why not put it in <linux/termios.h>?

Because I'm stupid?

Linus, please apply,
Rusty.
--
  Anyone who quotes me in their sig is an idiot. -- Rusty Russell.

diff -urpN --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.6.0-test4-bk6/include/asm-i386/termios.h working-2.6.0-test4-bk6-tmp/include/asm-i386/termios.h
--- linux-2.6.0-test4-bk6/include/asm-i386/termios.h	2003-09-05 09:16:36.000000000 +1000
+++ working-2.6.0-test4-bk6-tmp/include/asm-i386/termios.h	2003-09-05 13:26:10.000000000 +1000
@@ -101,9 +101,6 @@ struct termio {
 
 #define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
 #define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))

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VERY URGENT & CONFIDENTIAL

Mr=2E Aqeel Ahmad Chughtai
Aberystwyth=2C UK=2E
Email=3A c=2Eaqeel=40caramail=2Ecom

Assalamualaikum=2C  
Kindly Pardon me if this my letter would be an embarrassment to you for I am Mr=2E Aqeel Ahmad Chughtai=2C a Balochistan tribeman writing you from Aberystwyth=2C United Kingdom and I am presently on Political Asylum in the UK where I and several other Balochs sought refuge from the oppressive regime of the Iranian Government=2E

I am a council leader for one of the three refugee camps here in Europe=2C represents nearly 12=2C000 Balochs who have never received official refugee status because the EU Parliament only signed the U=2ES=2E Refugee Convention with the stipulation that United Kingdom and other European countries would not recognize non-Europeans as refugees=2E 

As a result=2C Balochs admitted into the UK have no rights=2C and no International agencies have been able to secure permission from the European Union to provide protection for the refugees=2C hence the UK Government have refused to grant me and others Political Asylum and they have gone further with threat to deport us back to Iran and I know that if this is done I would be killed if I step into Iran just as several students were killed recently during demonstration=2E I work to protect the welfare of displaced Balochs at great personal risk=2E My efforts have raised worldwide awareness of life in the makeshift camps where overcrowding=2C mass poisonings=2C beatings=2C and lack of medical supplies=2C water=2C and electricity cause hundreds of men=2C women=2C and children to die of cold=2
 C hunger=2C malnutrition=2C and communicable diseases=2E

The happy news here is that some public spirited philanthropists who would not want their identities made public called us after the unique and historical London Conference=2C which lasted for two days =28 26th & 27th of April 2003=29 told us that they have deposited the Sum of US$32Million with a Financial Institution in favour of the Balochs who are scattered all over the world and only I and or any person I nominate can claim the money from the Financial company and the money should be used mainly for purchasing of foods=2C pharmaceutical drugs=2C Clothings etc for thousands of our people suffering all over the world=2E  

I am therefore using this medium to solicit for your assistance=2E Your contacts were obtained  by me during my enduring search for a reliable and competent person that would claim this money for us from the company where it was deposited=2E 

There is a POWER OF ATTORNEY which I would  send alongside copies of my National Identity cards =2F Passport to you that would enable you claim the money from the Financial Company on our behalf=2E Upon your agreement and readiness to assist us claim the money =28US$32Million=29 from the Company=2C 20% of the total money would be your share for all your anticipated assistance=2C while 5% would be for any incidental expenses that you might incur in the process of claiming the money and transferring it to your Country=2C while the balance of 75% would be used to purchase Drugs=2C Clothing=2C Foods etc as earlier stated above=2C as I and a council leader of the people would find a way to travel down to your Country to make joint purchases of the above stated items=2E

I wish to repeat here that we have unshaken Confidence and trust in you and also wish to remind you of the TOP SECRECY this transaction requires=2C as we expect your positive response through this email address as stated above you can only reach me through this  above email as my movement is presently restricted by law covering Asylum Seekers=2C our movements are also restricted from travelling outside this Zone and Country for now=2C but  after receipt of your positive response and you wish to discuss with me I might give you a secret telephone number where you can reach me=2E On receiving your positive response we hope to finish this transaction within one week as a lot of our people are dying from diseases and hunger=2E

Expecting  your URGENT Positive response and thanks in advance=2E

Waalaikum salam=2C
Mr=2E Aqeel Ahmad Chughtai=09=09=09        









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On Thu, Aug 28, 2003 at 02:49:19AM -0400, Chuck Slivkoff wrote:
> >I have seen a B2000 with 8 DIMM slots and 6 PCI slots like a C3000.
> >This is no prototype - a real production unit.
> 
> Sounds like a B1000 to me. ;-) Essentially, a C3000 with a slower CPU.

Yes - you are right

thanks,
grant


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On Fri, Sep 05, 2003 at 01:00:35PM +0000, Joel Soete wrote:
> remember me that I also suggest a __fls() in: 
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2003-August/020628.html>

sorry - I missed that.
 
> Without any remark, I don't know if you could also be interested to 
> include it in 2.6.

no - becuase fls() and ffs() return the same values for given input.
(I see comments in include/asm-ppc/bitops.h to that effect).

parisc __ffs costs the same number of cycles regardless of input.
(2 cycles per 3 instructions about on PA 2.0 machines).
ie there is no advantage to "searching from the top" vs "searching
from the bottom" which is what I think the intent of fls() vs ffs().
For generic implementations, this intent is important.

What we could do is redefine fls() to also use ffs() and add
my comment above. Patch appended. Please test/review and tell me
if that should be committed. I haven't tested it yet and the comments
in PPC bitops.h could be wrong.

thanks,
grant


Index: include/asm-parisc/bitops.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/bitops.h,v
retrieving revision 1.2
diff -u -p -r1.2 bitops.h
--- include/asm-parisc/bitops.h	1 Sep 2003 00:30:42 -0000	1.2
+++ include/asm-parisc/bitops.h	5 Sep 2003 18:11:21 -0000
@@ -281,9 +281,14 @@ static __inline__ int ffs(int x)
 
 /*
  * fls: find last bit set.
+ *
+ * parisc __ffs costs the same number of cycles regardless of input.
+ * A similar implementation for __fls() would have no advantage.
+ * ie there is no advantage to "searching from the top" vs "searching 
+ * from the bottom" which is the intent of fls() vs ffs().
  */
 
-#define fls(x) generic_fls(x)
+#define fls(x) ffs(x)
 
 /*
  * hweightN: returns the hamming weight (i.e. the number


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Subject: Re: [parisc-linux] a fast fls also for 2.6?
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Grant Grundler wrote:

>On Fri, Sep 05, 2003 at 01:00:35PM +0000, Joel Soete wrote:
>  
>
>>remember me that I also suggest a __fls() in: 
>><http://lists.parisc-linux.org/pipermail/parisc-linux/2003-August/020628.html>
>>    
>>
>
>sorry - I missed that.
> 
>  
>
>>Without any remark, I don't know if you could also be interested to 
>>include it in 2.6.
>>    
>>
>
>no - becuase fls() and ffs() return the same values for given input.
>(I see comments in include/asm-ppc/bitops.h to that effect).
>
>parisc __ffs costs the same number of cycles regardless of input.
>(2 cycles per 3 instructions about on PA 2.0 machines).
>ie there is no advantage to "searching from the top" vs "searching
>from the bottom" which is what I think the intent of fls() vs ffs().
>For generic implementations, this intent is important.
>
>What we could do is redefine fls() to also use ffs() and add
>my comment above. Patch appended. Please test/review and tell me
>if that should be committed. I haven't tested it yet and the comments
>in PPC bitops.h could be wrong.
>
>thanks,
>grant
>
>
>Index: include/asm-parisc/bitops.h
>===================================================================
>RCS file: /var/cvs/linux-2.6/include/asm-parisc/bitops.h,v
>retrieving revision 1.2
>diff -u -p -r1.2 bitops.h
>--- include/asm-parisc/bitops.h	1 Sep 2003 00:30:42 -0000	1.2
>+++ include/asm-parisc/bitops.h	5 Sep 2003 18:11:21 -0000
>@@ -281,9 +281,14 @@ static __inline__ int ffs(int x)
> 
> /*
>  * fls: find last bit set.
>+ *
>+ * parisc __ffs costs the same number of cycles regardless of input.
>+ * A similar implementation for __fls() would have no advantage.
>+ * ie there is no advantage to "searching from the top" vs "searching 
>+ * from the bottom" which is the intent of fls() vs ffs().
>  */
> 
>-#define fls(x) generic_fls(x)
>+#define fls(x) ffs(x)
> 
> /*
>  * hweightN: returns the hamming weight (i.e. the number
>
>  
>
My bad, I undurstand that ffs return the index of the first bit set otc 
fls returning the the index of the last bit set
(ie for 1010: ffs would return 2 and fls would return 4)?

Sorry for confusion. It was never the less a good exercice ;)

Thanks,
    Joel




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On Fri, Sep 05, 2003 at 12:26:21PM -0600, Grant Grundler wrote:
> > Without any remark, I don't know if you could also be interested to 
> > include it in 2.6.
> 
> no - becuase fls() and ffs() return the same values for given input.
> (I see comments in include/asm-ppc/bitops.h to that effect).

James Bottomley privately corrected me. fls() != ffs().
fls() returns most significant bit set.

The examples provided:
	* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.

have the same value for ffs() and fls(). I didn't read the rest.
Good examples for showing bit numbering though.

I'll work on adding 64-bit support to your __fls() and commit that.

sorry for the confusion,
grant



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Grant Grundler wrote:

>On Fri, Sep 05, 2003 at 12:26:21PM -0600, Grant Grundler wrote:
>  
>
>>>Without any remark, I don't know if you could also be interested to 
>>>include it in 2.6.
>>>      
>>>
>>no - becuase fls() and ffs() return the same values for given input.
>>(I see comments in include/asm-ppc/bitops.h to that effect).
>>    
>>
>
>James Bottomley privately corrected me. fls() != ffs().
>fls() returns most significant bit set.
>
>The examples provided:
>	* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
>
>have the same value for ffs() and fls(). I didn't read the rest.
>Good examples for showing bit numbering though.
>
>I'll work on adding 64-bit support to your __fls() and commit that.
>
Thanks a lot :) (it just make me happy to be usefull)

>
>sorry for the confusion,
>
Please, don't be sorry, I am frequently the first confusing thought ;)

Cheers,
    Joel




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Subject: [parisc-linux] Re: [parisc-linux-cvs] Re: 2.6.0-test4-pa12 __fls()
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Hi Willy And Grant,

> On Fri, Sep 05, 2003 at 11:59:14PM -0600, Grant Grundler wrote:
> >/ > kudos to Joel Soete for mangling lamont's __ffs() to produce __fls().
/> >/ > Again, I added 64-bit support.  Booted on a500.
/> >/ > Didn't test 32-bit but fls_test.c included in above URL works in user space.
/> >/ > (162 cycles per loop iteration, 00:29:01 to complete on 400Mhz PA8500).
/>
> Sorry, but it's clearly broken.
> 
> >/ -#define fls(x) generic_fls(x)
/> >/ +static __inline__ unsigned long __fls(unsigned long x)
/> >/ +{
/> >/ +	unsigned long ret;
/> >/ +
/> >/ +	__asm__( " ldi    1,%1\n"
/> >/ +#if BITS_PER_LONG > 32
/> >/ +		" extrd,u,*<>  %0,63,32,%%r0\n"
/> 
> if any of the bottom 32 bits are set ...
> 
> >/ +		" depd,*TR  %0,31,32,%0\n"
/> 
> move the bottom 32 bits up into the top 32 bits
> 
> >/ +		" addi    32,%1,%1\n"
/> 
> otherwise add 32
> 
> >/ +#endif
/> 
> ... and then do things that can't see the top 32 bits.

hmm either I had to re-think the algo as you mentioned below
(so that to minimise the difference between 32 and 64 bits kernel)
or writing two distinct routine. (the 64 bits using depd,Z,*TR [...]
in place of 32 bits zdep

btw: is somebody knows how to compile with _hppa64-gcc_ shuch trivial loop
#include <stdio.h>

main()
{
	unsigned long long i;

	for (i=0; i<0xffffffffffffffffUL; i++) {
		printf ("i = %#010x (%ll)\n", i);
	}
}

(afair the problem if the call to printf() )

> 
> >/ +		" extru,<>  %0,15,16,%%r0\n"
/> >/ +		" zdep,TR  %0,15,16,%0\n"
/> >/ +		" addi     16,%1,%1\n"
/> 
> think you could put in comments similar to the endian swapping?  it makes
> the intent clearer to see.

My bad (in fact i was waiting some accept/reject comments before adding comment as pseudo_fls() was written)

> as far as i can tell, the basic principle
> here is..
> 
> if (top N bits clear)
> 	shift N bits right
> else
> 	add N 
> 
> right?

Sorry, I trusted that pseudo_fls() in the mentionned message:
(http://lists.parisc-linux.org/pipermail/parisc-linux/2003-August/020628.html)
was enough ;)

> 
> seems to me this whole thing should be done as
> 
> if (any top N bits set)
> 	shift N bits left
> else
> 	subtract N
> 
> >/ +		" extru,<>  %0,7,8,%%r19\n"
/> 
> r19?  That's not mentioned as being clobbered.  I think you mean r0.

Yes a typo of mine (my bad sorry)

As i am in holidays, the pb is that I have no palinux box at my disposal to experiment another solution :(

Joel

PS: may i submit you an additional thought without any interest (may be):
the suggested code is "
+	return x ? (__ffs((unsigned long)x) + 1) : 0;

and if I refer to k&r book long is of 32bits lenght? (otc int is arch dependent)
But may be outdated by C99?

Thanks for additonal advise (and sorry for so much questions against so poor answers ;)




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> btw: is somebody knows how to compile with _hppa64-gcc_ shuch trivial loop
> #include <stdio.h>
> 
> main()
> {
> 	unsigned long long i;
> 
> 	for (i=0; i<0xffffffffffffffffUL; i++) {
> 		printf ("i = %#010x (%ll)\n", i);
> 	}
> }
> 
> (afair the problem if the call to printf() )

we don't have 64-bit glibc/userspace yet, so you can't do this.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] Invitation to the 8th Oldenburg Linux Developers Meeting
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Hello everybody,

as always, it has taken quite some time to get the required
confirmation from our University that we can hold the Oldenburg Linux
Developers Meeting again.

       Invitation to the 8th Oldenburg Linux Developers Meeting
       =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D

A short overview:

URL:   http://oldenburger.linuxtage.de/Oldenburg2003/
What:  Oldenburg Linux Developers Meeting 2003 #8
Who:   Every developer interested in Linux on non-i386 platforms
       Every developer interested in developing the debian-installer
When:  September, 25th to 28th (Thursday noon to Sunday afternoon)
Where: University of Oldenburg, science building in Oldenburg Wechloy,
       northern Germany (roughly west of Bremen)

The meeting is organised by ffis e.V.  Its goal is to provide
developers a means to work in common on the non-i386 Linux ports and
related topics and to further the exchange of ideas and discussion
about the several ports.  This year there will also be a group of
people who will work on the new installer system for Debian.  So one
of the targets is to get a working debian-installer running on all
platforms supported by Debian GNU/Linux.

If you have not attended any previous meeting, you might like to take a=20
look at the meetings' website at <http://oldenburger.linuxtage.de/devel.htm=
l>.
There are links to pictures from former meetings as well.

Attendance is free of cost including food and beverage in the working
rooms (although we are always thankful for donations).  We will have
dinner in some restaurants in Oldenburg (not yet decided which ones, though=
) if you
like.

You don't have to attend from Thursday.  This is just an offer for
those of you who would like to and who can afford to come early.  If
you can't make it that early, simply join when you can afford it.

We will use several rooms, one for hacking on Linux, one for hacking
on the debian-installer, and the others for sleeping. =20

Please bring a sleeping bag, camping mat or cot, towels, shower stuff,
clothes and so on with you.  There is a sports building of the
univesity next to the one we stay in, which has showers we can use.

Besides this, of course you need to bring all the technical stuff with
you: computers, monitors, technical documentation, network cabling,
multiple-power-sockets for your systems and hubs or switches.  The
computing center of the university kindly provides us with network
connectivity to the main rooms, but we need to build the LAN within
the room ourselves.

A description on how to get to the science building in Oldenburg Wechloy
is available at <http://oldenburger.linuxtage.de/Oldenburg2003/routing.html=
>.

If you would like to attend the meeting, please send back the following=20
form, so that we can calculate space, power and food.

Name ................:

Date of arrival .....: ( ) Thursday, Sept. 25th
                       ( ) Friday, Sept. 26th
                       ( ) Saturday, Sept. 27th=20

Date of departure ...: ( ) Friday, Sept. 26th
                       ( ) Saturday, Sept. 27th
                       ( ) Sunday, Sept. 28th

Name may be listed on the website: [ ] yes
                                   [ ] no

Special requirements for food:

If you have any further questions, please don't hesitate to ask me.

Regards,

	Joey

--=20
The good thing about standards is that there are so many to choose from.
		-- Andrew S. Tanenbaum

Please always Cc to me when replying to me on the lists.

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Subject: [parisc-linux] problems installing debian on a c180
Date: Mon, 08 Sep 2003 15:26:45 -0500
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i had previously done some messing around with a c180 and at one time
figured
out how to install but have since lost my notes.

i have a c180 with an hp A4071B graphics card installed in GSC slot 3
and
recognized as HPA4071B_LZ

i know i previously had to enter "video=stifb:off" in the palo:

default when i choose to interact with ipl on boot as parameters to
kernal in
palo are:

1. 0/vmlinux
2. ramdisk_size=8192
3. initrd=0/ramdisk
4. console=tty0
5. sti=1/0/0
6. sti_font=VGA8x16
7. TERM=linux

if i accept default it gets past that message indicating a problem with
console
but the screen goes black although it looks as if the monitor is still
active
i.e. green light not a yellow one.

i am using the debian 3.0r1 disk as my boot disk.

i recall the last time i got the install to work i got a penguin in the
corner
but graphic install never worked and i had some difficulty with the x
server
starting.  any help on reinstallation would be appreciated i.e.
necessary mods
to the parameters on boot to get back to installing.

thanks in advance and sorry for regressing.




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Thaddeus A. Wilson wrote:

>i had previously done some messing around with a c180 and at one time
>figured
>out how to install but have since lost my notes.
>
>i have a c180 with an hp A4071B graphics card installed in GSC slot 3
>and
>recognized as HPA4071B_LZ
>
>i know i previously had to enter "video=stifb:off" in the palo:
>
>default when i choose to interact with ipl on boot as parameters to
>kernal in
>palo are:
>
>1. 0/vmlinux
>2. ramdisk_size=8192
>3. initrd=0/ramdisk
>4. console=tty0
>
There should the place where you would probaly insert "video=stifb:off" 
(just for remind: select 4 then at the end of line insert a space 
followed by video=stifb:off)

>5. sti=1/0/0
>6. sti_font=VGA8x16
>7. TERM=linux
>
>if i accept default it gets past that message indicating a problem with
>console
>but the screen goes black although it looks as if the monitor is still
>active
>i.e. green light not a yellow one.
>
>i am using the debian 3.0r1 disk as my boot disk.
>
>i recall the last time i got the install to work i got a penguin in the
>corner
>but graphic install never worked and i had some difficulty with the x
>server
>starting.  any help on reinstallation would be appreciated i.e.
>necessary mods
>to the parameters on boot to get back to installing.
>  
>
hmm the most simple way would be first to re-try the install from a 
serial console (or an actual conole in vt100 emulation or a minicom 
session from another system). (the tips is to unplug ps/2 kbd/mouse so 
the pdc will switch automatically console to serial port 1 at reboot time)

Once your system is ready you may be first update it (with apt-get for 
example) and install a more recent kernel (iirc 2.4.21 should be already 
pkged or a 2.4 cvs)  to be sure that pb was not already solved since 3.0 
cds.
If you still experiment pb into 
<http://parisc-linux.org/mailing-lists/index.html> you could try to 
search (with google engine) "c180" related mail in this ml

Another  solution could be to try a netinstall from a recent lifimage 
available near <http://pateam.esiee.fr/cd-images/testing>.

hth,
    Joel




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վڴǰŮ 
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˭ĵȻ˭ǻ 

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վڴǰŮ 
òֽ߲Ӱ¿˳ 
ۣƣᵱٵ 
һ裬飬Ȼ 
ԭ˳ãǧԵݣ 

վڴǰŮ 
03828ڹ 
Email:cqnvhai@163.com 
http://www.blogcn.com/blog/?u=cqnvhai

һøס 
װ걻ĸȥˣֻһ游һͬĸĲĸǶӵضĻˡ׺ܰĸףĸҲܰסÿһνĸʱܸоǷǷݾҲ8꣬ĸĸ׳ʧڳͥͻȻʣĸ鰮ʹʧ˸׳صĴͬʱҲǻڶԹ游˼״һصйɳ 
ڣͯķĸҵļֻһģļӰΨһӡǿĸ׵ƬܻĸվҴǰ΢ЦͯʱʹҪҪ裬ҾܾˡǸױȫϣΨһŮϣֱҲ⸸׺ڳɳʮ֮Բ½飬ΪĸľͿ̹ĵĸԡʮΪĸعʮ꣬Ҳһ˱һˡһˣҲһŵˡںöĵ游İĲҲ˾ܵİҴϲȥ游ңʮֻȥĴΣζǸȥġ 
ʹǲһֵŮ΢ЦŸңһ㶼ֻ֣һƸеšûܹöΪʲôʢûܹ׺Ϊʲô֩ϾҲûܹСʼռʥ˵ĴڡЩŵ㲻Ҫ׵ĶְΪŮԺ 
ǵģһȺ˲һŮڸ׵ĳһῴŴĳ24ųеҹſֽһһǶȿʣڱﾲҵԼĿֻ顣Ÿ׵˾ȥо˻æµˣʸǲԺҲҪϰ๤ҵļ˵ϲԴ͸ҵʹ㲻ǲҪģְֻ׼㹻ǮֻҪϲ£ĿЦݾǰְ룬ٴһ㣬ְֻҪеռǳ飬ԸԸ⣬Ҵ 
лʳǣлҴûΪǮл׸һֵĴ԰ҳ˳ҡǽһжѾڡһŮһŮһ˸׵İԼͻᱻŮѲУѰܣٻ׵Լռǣ˼䴴˸п˭ܹףǸеϣڣڸõĻر;Тެܺҵһ룬Լֵȥ 
վڴǰŮ򵥵һŮôϡŹ֣һŮܻԣȻȹᴩ´磬Ȼʲ״ףֻΪһиѳϰߣ 
ĸģĲѣҷɳ̲ΪĴ磬ѧİšվڴǰŮ˭ԸΪһŮǧ谮˭ԸΪһŮȥ׷һʣ˭ԸΪȢһŮȷʵ޺ãã˺ʵĴ𰸣 
ۣݣʳѣѵЩٻ 

վڴǰŮ 
0391峿ãڹ 



ĵڴ˺ѰҴ𰸡컹ãƲɢݵ˵ͱ䣬̨˵һҹʲôݣٲѣֻҲˣһһʲôСС֪ǮΪСΪǮǿòĳƱŸ׵ȥ׸ĿҲûǮ³ǵģ̫ˣΪҲϲİˣԸҲİ˰˾˴ؼңΪ̫ƧԴŮеѧҲûʲô֪ĵͬѡһĬĬԼŷ仨ѩ£Сѿд¶ĵ̾ ҲϲһкȻʥ˵ĴڣһA4ֽһԲȦ󵽿԰˵Դװȥȴ֪ô˶ʮ̸ 
ǵġһŮһƣ磬Խдṩõϣϲ£ѵҲддƲϲԼ⣬ֻΪ𼦱ɱʱʹᣬƿڵϵˣƻеǮѵеһжǴı֣ΪƵ۾￴綼ǵ¥ˡҸ˲һԸΪҲ硢ܹڳ˵˼ά͹۵⡣ΪЩΪܹԼԸȥȥϲԴ͸󱨴𡣾һƣ˭ܸӦô 
ʮ£ͥеӣƻԲķʽѸеĲƲһ޿ҪˡͬҲܼҲҪΪƵĻᣬҲϲԴ͸Ƶƾ٣ر˼άһӽȥЩˣ֤ƴڵļֵ 
ףǣлԸƵˣʱƻرķʽƵصЩĵˡЩᳰЦЩܹʥ˴ڵˣ 
ǵģվڴǰŮȷʵڣȷʵʵ֮ҲͬΪǶûվڴ⣡ǵģ٣ҲһѰʵ 
һͨʺţ9555 5020 0150 9251 ׵Ŀ 

վڴǰŮ 
Email:cqnvhai@163.com 
0393賿 ڹ 


ǵģƵȷһֵŮӡ
˵3ʱҾͺϲɫƬǸȴǰѻƬǸ׾ͰѻƬתҿһҪ׾ͻҵ۾ëʹȥҽҽĽǣӰͼƬ󣬳ΪӡһһʱǵһĹߣ۽Ĥ൱ĵƬγһ񡣵ǣ񴫵ԵӾ࣬ۺϷ㱻ˡ3µ׶ƤʹδȫȱƵۺϷǿͼǵģֻаѻƬܸܵλ񡣲ʱ̣ܶŴƤʹƣȻȻʧˡ
ʱȴԶֱƿ磬ǵŵġŵķӡŵ·ŵˡհһƣɻŬİյһеһƿڲֱܷͬңƹ·ϳ˶һΣյľٶܶڳ˿Ȼ飬ƻвͬĿҲƵرҲƶƸе֪ԼʺϹ˳ǲʺϹġ
һƣ˭ܸʲô˭ܸҸôһƣ׸úȥδӣʧȥ׵ӣ˭ܹ˭Ը˭Ըǻ˭Ը谮һŮһֵŮȷʵĴڣ
ˣȷʵˣþ̲Ǹ壿ǹޣ
ʧʱ򡢵ĵʱ򡢵پʱͬĵطҲϣиδδ֪δǵվڴǰŮڿѰҴ𰸣

վڴǰŮ
0397ҹڹ
http://www.blogcn.com/blog/?u=cqnvhai
Email:cqnvhai@163.com 



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վڴǰŮ 
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˭ĵȻ˭ǻ 

վڴǰŮ 
근ʮϲʫķơ 
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վڴǰŮ 
òֽ߲Ӱ¿˳ 
ۣƣᵱٵ 
һ裬飬Ȼ 
ԭ˳ãǧԵݣ 

վڴǰŮ 
03828ڹ 
Email:cqnvhai@163.com 
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һøס 
װ걻ĸȥˣֻһ游һͬĸĲĸǶӵضĻˡ׺ܰĸףĸҲܰסÿһνĸʱܸоǷǷݾҲ8꣬ĸĸ׳ʧڳͥͻȻʣĸ鰮ʹʧ˸׳صĴͬʱҲǻڶԹ游˼״һصйɳ 
ڣͯķĸҵļֻһģļӰΨһӡǿĸ׵ƬܻĸվҴǰ΢ЦͯʱʹҪҪ裬ҾܾˡǸױȫϣΨһŮϣֱҲ⸸׺ڳɳʮ֮Բ½飬ΪĸľͿ̹ĵĸԡʮΪĸعʮ꣬Ҳһ˱һˡһˣҲһŵˡںöĵ游İĲҲ˾ܵİҴϲȥ游ңʮֻȥĴΣζǸȥġ 
ʹǲһֵŮ΢ЦŸңһ㶼ֻ֣һƸеšûܹöΪʲôʢûܹ׺Ϊʲô֩ϾҲûܹСʼռʥ˵ĴڡЩŵ㲻Ҫ׵ĶְΪŮԺ 
ǵģһȺ˲һŮڸ׵ĳһῴŴĳ24ųеҹſֽһһǶȿʣڱﾲҵԼĿֻ顣Ÿ׵˾ȥо˻æµˣʸǲԺҲҪϰ๤ҵļ˵ϲԴ͸ҵʹ㲻ǲҪģְֻ׼㹻ǮֻҪϲ£ĿЦݾǰְ룬ٴһ㣬ְֻҪеռǳ飬ԸԸ⣬Ҵ 
лʳǣлҴûΪǮл׸һֵĴ԰ҳ˳ҡǽһжѾڡһŮһŮһ˸׵İԼͻᱻŮѲУѰܣٻ׵Լռǣ˼䴴˸п˭ܹףǸеϣڣڸõĻر;Тެܺҵһ룬Լֵȥ 
վڴǰŮ򵥵һŮôϡŹ֣һŮܻԣȻȹᴩ´磬Ȼʲ״ףֻΪһиѳϰߣ 
ĸģĲѣҷɳ̲ΪĴ磬ѧİšվڴǰŮ˭ԸΪһŮǧ谮˭ԸΪһŮȥ׷һʣ˭ԸΪȢһŮȷʵ޺ãã˺ʵĴ𰸣 
ۣݣʳѣѵЩٻ 

վڴǰŮ 
0391峿ãڹ 



ĵڴ˺ѰҴ𰸡컹ãƲɢݵ˵ͱ䣬̨˵һҹʲôݣٲѣֻҲˣһһʲôСС֪ǮΪСΪǮǿòĳƱŸ׵ȥ׸ĿҲûǮ³ǵģ̫ˣΪҲϲİˣԸҲİ˰˾˴ؼңΪ̫ƧԴŮеѧҲûʲô֪ĵͬѡһĬĬԼŷ仨ѩ£Сѿд¶ĵ̾ ҲϲһкȻʥ˵ĴڣһA4ֽһԲȦ󵽿԰˵Դװȥȴ֪ô˶ʮ̸ 
ǵġһŮһƣ磬Խдṩõϣϲ£ѵҲддƲϲԼ⣬ֻΪ𼦱ɱʱʹᣬƿڵϵˣƻеǮѵеһжǴı֣ΪƵ۾￴綼ǵ¥ˡҸ˲һԸΪҲ硢ܹڳ˵˼ά͹۵⡣ΪЩΪܹԼԸȥȥϲԴ͸󱨴𡣾һƣ˭ܸӦô 
ʮ£ͥеӣƻԲķʽѸеĲƲһ޿ҪˡͬҲܼҲҪΪƵĻᣬҲϲԴ͸Ƶƾ٣ر˼άһӽȥЩˣ֤ƴڵļֵ 
ףǣлԸƵˣʱƻرķʽƵصЩĵˡЩᳰЦЩܹʥ˴ڵˣ 
ǵģվڴǰŮȷʵڣȷʵʵ֮ҲͬΪǶûվڴ⣡ǵģ٣ҲһѰʵ 
һͨʺţ9555 5020 0150 9251 ׵Ŀ 

վڴǰŮ 
Email:cqnvhai@163.com 
0393賿 ڹ 


ǵģƵȷһֵŮӡ
˵3ʱҾͺϲɫƬǸȴǰѻƬǸ׾ͰѻƬתҿһҪ׾ͻҵ۾ëʹȥҽҽĽǣӰͼƬ󣬳ΪӡһһʱǵһĹߣ۽Ĥ൱ĵƬγһ񡣵ǣ񴫵ԵӾ࣬ۺϷ㱻ˡ3µ׶ƤʹδȫȱƵۺϷǿͼǵģֻаѻƬܸܵλ񡣲ʱ̣ܶŴƤʹƣȻȻʧˡ
ʱȴԶֱƿ磬ǵŵġŵķӡŵ·ŵˡհһƣɻŬİյһеһƿڲֱܷͬңƹ·ϳ˶һΣյľٶܶڳ˿Ȼ飬ƻвͬĿҲƵرҲƶƸе֪ԼʺϹ˳ǲʺϹġ
һƣ˭ܸʲô˭ܸҸôһƣ׸úȥδӣʧȥ׵ӣ˭ܹ˭Ը˭Ըǻ˭Ը谮һŮһֵŮȷʵĴڣ
ˣȷʵˣþ̲Ǹ壿ǹޣ
ʧʱ򡢵ĵʱ򡢵پʱͬĵطҲϣиδδ֪δǵվڴǰŮڿѰҴ𰸣

վڴǰŮ
0397ҹڹ
http://www.blogcn.com/blog/?u=cqnvhai
Email:cqnvhai@163.com 



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Hi pa,

cvs [update aborted]: connect to 
cvs.parisc-linux.org(192.25.206.14):2401 failed: Connection timed out

Thanks in advance for help,
    Joel




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On Wed, Sep 10, 2003 at 12:14:47PM +0000, Joel Soete wrote:
> cvs [update aborted]: connect to 
> cvs.parisc-linux.org(192.25.206.14):2401 failed: Connection timed out

It went down last night shortly after I went to bed.  We're waiting for
someone in Fort Collins to get in and reboot it.  I would guess that's
2-3 hours from now.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi Randolph,

As you may already read before, I experiment  pb  with  SMP  kernel  
2.4  on  a N server and we suspect a tlb management pb.

On the other hand, I read your patch:   
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2003-September/033367.html

May I ask you more details on the reason of this patch?

Could (would) it be back-ported to 2.4?

Thanks in advance,
    Joel



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Hi!

In the last few days the B132l I use as DSL router completely hung 3 
times. Every time requiring a power cycle to revive it. It is running 
Debian testing with kernel 2.4.18-hppa.

To test the machine I tried to compile a new kernel. After compiling a 
few files everything hung and spit out the following messages:

scsi0: (2:0) Synchronous at offset 8, period 100ns
scsi0: (2:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =Read (10) 00 00 35 e2 00 00 00 18 00
scsi0: Bus Reset detected, executing command 10081c00, slot 00010520, 
dsp 000902 failing command because of reset, slot 00010520, cmnd 10081c00
  failing command because of reset, slot 00010654, cmnd 10081a00
  failing command because of reset, slot 00010788, cmnd 10081800
  failing command because of reset, slot 000108bc, cmnd 10081600
  failing command because of reset, slot 000109f0, cmnd 10081400
  failing command because of reset, slot 00010b24, cmnd 10081200
  failing command because of reset, slot 00010c58, cmnd 10081000
  failing command because of reset, slot 00010d8c, cmnd 10082e00
  failing command because of reset, slot 00010ec0, cmnd 10082c00
  failing command because of reset, slot 00010ff4, cmnd 10082a00
  failing command because of reset, slot 00011128, cmnd 10082800
  failing command because of reset, slot 0001125c, cmnd 10082600
  failing command because of reset, slot 00011390, cmnd 10082400
  failing command because of reset, slot 000114c4, cmnd 10082200
  failing command because of reset, slot 000115f8, cmnd 10082000
  failing command because of reset, slot 0001172c, cmnd 100a4e00
scsi0: (2:0) Synchronous at offset 8, period 100ns
scsi0: (2:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =Read (10) 00 00 35 e2 00 00 00 18 00
scsi0: Bus Reset detected, executing command 10081c00, slot 00010520, 
dsp 000902 failing command because of reset, slot 00010520, cmnd 10081c00
  failing command because of reset, slot 00010654, cmnd 10081a00
  failing command because of reset, slot 00010788, cmnd 10081800

... and so on and so forth ...

The power seitch does nothing, only power cycling helps. I tried 
compiling the kernel again with the same results...

What do these messages mean? Is the hd defective or is it some problem 
with the scsi bus?

The machine worked flawlessly for half a year... I have no idea what 
went wrong!

Thanks in advance,
   Sebastian



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Sebastian Brueckner wrote:

> Hi!
>
> In the last few days the B132l I use as DSL router completely hung 3 
> times. Every time requiring a power cycle to revive it. It is running 
> Debian testing with kernel 2.4.18-hppa.
>
> To test the machine I tried to compile a new kernel. After compiling a 
> few files everything hung and spit out the following messages:
>
> scsi0: (2:0) Synchronous at offset 8, period 100ns
> scsi0: (2:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
>          len = 6, cmd =Read (10) 00 00 35 e2 00 00 00 18 00
> scsi0: Bus Reset detected, executing command 10081c00, slot 00010520, 
> dsp 000902 failing command because of reset, slot 00010520, cmnd 10081c00
>  failing command because of reset, slot 00010654, cmnd 10081a00
>  failing command because of reset, slot 00010788, cmnd 10081800
>  failing command because of reset, slot 000108bc, cmnd 10081600
>  failing command because of reset, slot 000109f0, cmnd 10081400
>  failing command because of reset, slot 00010b24, cmnd 10081200
>  failing command because of reset, slot 00010c58, cmnd 10081000
>  failing command because of reset, slot 00010d8c, cmnd 10082e00
>  failing command because of reset, slot 00010ec0, cmnd 10082c00
>  failing command because of reset, slot 00010ff4, cmnd 10082a00
>  failing command because of reset, slot 00011128, cmnd 10082800
>  failing command because of reset, slot 0001125c, cmnd 10082600
>  failing command because of reset, slot 00011390, cmnd 10082400
>  failing command because of reset, slot 000114c4, cmnd 10082200
>  failing command because of reset, slot 000115f8, cmnd 10082000
>  failing command because of reset, slot 0001172c, cmnd 100a4e00
> scsi0: (2:0) Synchronous at offset 8, period 100ns
> scsi0: (2:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
>          len = 6, cmd =Read (10) 00 00 35 e2 00 00 00 18 00
> scsi0: Bus Reset detected, executing command 10081c00, slot 00010520, 
> dsp 000902 failing command because of reset, slot 00010520, cmnd 10081c00
>  failing command because of reset, slot 00010654, cmnd 10081a00
>  failing command because of reset, slot 00010788, cmnd 10081800
>
> ... and so on and so forth ...
>
> The power seitch does nothing, only power cycling helps. I tried 
> compiling the kernel again with the same results...
>
> What do these messages mean? Is the hd defective or is it some problem 
> with the scsi bus?

Yes it looks like a disk becoming defective. The best way to be sure is 
to use a hp cdrom containing Diagnostic tools (iirc the last hpux 
support + would contains it). This cd is bootable and contains tools 
allowing you test your disk.

If you have another system on which you can connect your suspected disk 
you can also try a dd cmd like:
dd if=/dev/rdsk/c0txd0 of=/dev/null bs=2048k (where you replace 
/dev/rdsk/c0txd0 by the actual disk path)

>
> The machine worked flawlessly for half a year... I have no idea what 
> went wrong!

It seems to confirm your suspition (i have to manage remotely some 300 
hp server: a few b132, b180, b2000, A500, K250, L, N and a lot of D; and 
the most peaces we have to replace are disk becoming defective)

hth,
    joel




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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [parisc-linux] HP B132L hangs
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On Wed, 2003-09-10 at 09:19, Sebastian Brueckner wrote:
> scsi0: (2:0) Synchronous at offset 8, period 100ns
> scsi0: (2:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
>           len = 6, cmd =Read (10) 00 00 35 e2 00 00 00 18 00

That's a residue of an incorrect lasi700 driver.  Notice it thinks the
length is six for a ten byte command.  This has long been fixed in the
linux-2.4 PA tree (er, I think---I've been concentrating on 2.6 mainly).

However, something higher up in the trace you don't attach caused the
actual problem that this is a response to (It's caused by the SCSI mid
layer putting the wrong command length back *after* error recovery, so
your true root cause is the error that first started this).

James





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Matthew Wilcox wrote:

>On Wed, Sep 10, 2003 at 12:14:47PM +0000, Joel Soete wrote:
>  
>
>>cvs [update aborted]: connect to 
>>cvs.parisc-linux.org(192.25.206.14):2401 failed: Connection timed out
>>    
>>
>
>It went down last night shortly after I went to bed.  We're waiting for
>someone in Fort Collins to get in and reboot it.  I would guess that's
>2-3 hours from now.
>
>  
>
Just back now :)

Joel




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James Bottomley schrieb:
 > That's a residue of an incorrect lasi700 driver.  Notice it thinks the
 > length is six for a ten byte command.  This has long been fixed in the
 > linux-2.4 PA tree (er, I think---I've been concentrating on 2.6
 > mainly).

Hrm...

I installed the latest available kernel image (2.4.20-32) and it worked 
- only compiling seems to raise the error... strange!

 > However, something higher up in the trace you don't attach caused the
 > actual problem that this is a response to (It's caused by the SCSI mid
 > layer putting the wrong command length back *after* error recovery, so
 > your true root cause is the error that first started this).

I ran make-kpkg again and this time captured the first messages:

/usr/bin/make -C scsi fastdep
make[6]: Entering directory `/usr/src/linux-2.4.22/drivers/scsi'
gcc -D__KERNEL__ -I/usr/src/linux-2.4.22/include -Wall 
-Wstrict-prototypes -Wnoc
| /sbin/genksyms  -k 2.4.22 > 
/usr/src/linux-2.4.22/include/linux/modules/scsi_p
mv /usr/src/linux-2.4.22/include/linux/modules/scsi_syms.ver.tmp 
/usr/src/linuxr
gcc -D__KERNEL__ -I/usr/src/linux-2.4.22/include -Wall 
-Wstrict-prototypes -Wnoc
| /sbin/genksyms  -k 2.4.22 > 
/usr/src/linux-2.4.22/include/linux/modules/53c70p
53c700.c:163:22: 53c700_d.h: No such file or directory
mv /usr/src/linux-2.4.22/include/linux/modules/53c700.ver.tmp 
/usr/src/linux-2.r
/usr/src/linux-2.4.22/scripts/mkdep -D__KERNEL__ 
-I/usr/src/linux-2.4.22/includm
vme16x.c mvme16xInfo fld=0x35e1fb.h ncr53c8xx.c n, cr53c8xx.h 
nsp32Current .c nr
_debug.c nsp32_iAdditional sense indicates Unrecovered read error
o.h oktagon_esp. I/O error: dev 08:04, sector 3182320
c oktagon_esp.h scsi0: (2:0), UNEXPECTED PHASE after command phase (CD 
BSY REQ )
          len = 6, cmd =Read (10) 00 00 35 e2 00 00 00 18 00
scsi0: Bus Reset detected, executing command 10081c00, slot 00010520, 
dsp 00090]
  failing command because of reset, slot 00010520, cmnd 10081c00
oktagon_io.S ossscsi0: (2:0) Synchronous at offset 8, period 100ns
t.c osst.h osst_detect.h osst_options.h pas16.c pas16.h pci2000.c 
pci2000.h pci)
          len = 6, cmd =Read (10) 00 00 35 e2 00 00 00 18 00
scsi0: Bus Reset detected, executing command 10081c00, slot 00010520, 
dsp 00090]
  failing command because of reset, slot 00010520, cmnd 10081c00
qlogicpti.h qlogscsi0: (2:0) Synchronous at offset 8, period 100ns
icpti_asm.c scsi.c scsi.h scsi_debug.c scsi_debug.h scsi_dma.c 
scsi_error.c scs)
          len = 6, cmd =Read (10) 00 00 35 e2 00 00 00 18 00
scsi0: Bus Reset detected, executing command 10081c00, slot 00010520, 
dsp 00090]
  failing command because of reset, slot 00010520, cmnd 10081c00
710_d.h sim710_uscsi0: (2:0) Synchronous at offset 8, period 100ns
.h sr.c sr.h sr_ioctl.c sr_vendor.c st.c st.h st_options.h 
sun3_NCR5380.c sun3_)
          len = 6, cmd =Read (10) 00 00 35 e2 00 00 00 18 00
scsi0: Bus Reset detected, executing command 10081c00, slot 000109f0, 
dsp 00090]
  failing command because of reset, slot 00010520, cmnd 10081a00
  failing command because of reset, slot 00010654, cmnd 10081800
  failing command because of reset, slot 00010788, cmnd 10082800
  failing command because of reset, slot 000108bc, cmnd 10081000
  failing command because of reset, slot 000109f0, cmnd 10081c00
  failing command because of reset, slot 00010b24, cmnd 10082e00
  failing command because of reset, slot 00010c58, cmnd 10081200
  failing command because of reset, slot 00010d8c, cmnd 10082a00
  failing command because of reset, slot 00010ec0, cmnd 10082600
  failing command because of reset, slot 00010ff4, cmnd 10081600
  failing command because of reset, slot 00011128, cmnd 10082200
  failing command because of reset, slot 0001125c, cmnd 10082c00
  failing command because of reset, slot 00011390, cmnd 10081400
  failing command because of reset, slot 000114c4, cmnd 10082400
  failing command because of reset, slot 000115f8, cmnd 10082000
  failing command because of reset, slot 0001172c, cmnd 100a4e00
7000.c wd7000.h scsi0: (2:0) Synchronous at offset 8, period 100ns
zalon7xx.c zalon7xx.h > .depend
scsi0: (2:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =Read (10) 00 00 35 e2 00 00 00 18 00
scsi0: Bus Reset detected, executing command 10081c00, slot 00010520, 
dsp 00090]
  failing command because of reset, slot 00010520, cmnd 10081c00
  failing command because of reset, slot 00010654, cmnd 10081a00
  failing command because of reset, slot 00010788, cmnd 10081800
  failing command because of reset, slot 000108bc, cmnd 10081600
  failing command because of reset, slot 000109f0, cmnd 10081400
  failing command because of reset, slot 00010b24, cmnd 10081200
  failing command because of reset, slot 00010c58, cmnd 10081000
  failing command because of reset, slot 00010d8c, cmnd 10082e00
  failing command because of reset, slot 00010ec0, cmnd 10082c00
  failing command because of reset, slot 00010ff4, cmnd 10082a00
  failing command because of reset, slot 00011128, cmnd 10082800
  failing command because of reset, slot 0001125c, cmnd 10082600
  failing command because of reset, slot 00011390, cmnd 10082400
  failing command because of reset, slot 000114c4, cmnd 10082200
  failing command because of reset, slot 000115f8, cmnd 10082000
  failing command because of reset, slot 0001172c, cmnd 100a4e00
...

I will try the newer kernel now...
However "Unrecovered read error" sounds very much like a bad disk for me 
so I suppose it will not help...

cu,
   Sebastian



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] HP B132L hangs
Date: Wed, 10 Sep 2003 19:58:34 +0100
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On Wed, Sep 10, 2003 at 08:47:36PM +0200, Sebastian Brckner wrote:
> I installed the latest available kernel image (2.4.20-32) and it worked 
> - only compiling seems to raise the error... strange!
> 
> I ran make-kpkg again and this time captured the first messages:

Could you redirect the output from make-kpkg to a file or /dev/null so the
messages from the compilation aren't interleaved with the kernel messages.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] login timeout?
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console login on my a500 running 2.6.0-test5-pa0 says:


Debian GNU/Linux testing/unstable ion ttyS0

ion login: ooro
Password: 
Login incorrect

ion login: 
Login timed out after 60 seconds.

Debian GNU/Linux testing/unstable ion ttyS0

ion login: 

This looks normal but the timeout occurs in about 5 seconds.
Something is broken.

config/vmlinux/etc uploaded to
	ftp://ftp.parisc-linux.org/kernels/a500/2.6.0-test5-pa0.tgz

grant


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From: =?ISO-8859-1?Q?Sebastian_Br=FCckner?= <sebastian.brueckner@epost.de>
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Subject: Re: [parisc-linux] HP B132L hangs
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Matthew Wilcox schrieb:
> Could you redirect the output from make-kpkg to a file or /dev/null so the
> messages from the compilation aren't interleaved with the kernel messages.

I tried to backup the system and got the a similar error with very few 
messages mixed into it. Maybe this is better readable:

b132l:~# tar c / | ssh -l sb 192.168.0.2 'gzip -f > root.tar.gz'
tar: Removing leading `/' from member names
sb@192.168.0.2's password:
scsi0: ERROR on channel 0, id 2, lun 0, CDB: Request Sense 00 00 00 40 00
Info fld=0x39a27b, Current sd08:04: sense key Medium Error
Additional sense indicates Unrecovered read error
  I/O error: dev 08:04, sector 3428208
tar: /usr/share/consolefonts/lat1-08.psf.gz: Read error at byte 0, 
reading 1024 bytes: Input/output error
scsi0: ERROR on channel 0, id 2, lun 0, CDB: Request Sense 00 00 00 40 00
Info fld=0x39a5e4, Current sd08:04: sense key Medium Error
Additional sense indicates Unrecovered read error
  I/O error: dev 08:04, sector 3429080
scsi0: (2:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =Read (10) 00 00 39 a5 e8 00 00 a0 00
scsi0: Bus Reset detected, executing command 10081c00, slot 00010ff4, 
dsp 00090210[0210]
  failing command because of reset, slot 00010ff4, cmnd 10081c00
scsi0: (2:0) Synchronous at offset 8, period 100ns
scsi0: (2:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =Read (10) 00 00 39 a5 e8 00 00 a0 00
scsi0: Bus Reset detected, executing command 10081c00, slot 00010520, 
dsp 00090210[0210]
  failing command because of reset, slot 00010520, cmnd 10081c00
  failing command because of reset, slot 00010ff4, cmnd 10081a00
  failing command because of reset, slot 000115f8, cmnd 10081800
scsi0: (2:0) Synchronous at offset 8, period 100ns
scsi0: (2:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =Read (10) 00 00 39 a5 e8 00 00 a0 00
scsi0: Bus Reset detected, executing command 10081c00, slot 00010520, 
dsp 00090210[0210]
  failing command because of reset, slot 00010520, cmnd 10081c00
  failing command because of reset, slot 00010ff4, cmnd 10081a00
  failing command because of reset, slot 000115f8, cmnd 10081800
scsi0: (2:0) Synchronous at offset 8, period 100ns
scsi0: (2:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =Read (10) 00 00 39 a5 e8 00 00 a0 00
scsi0: Bus Reset detected, executing command 10081c00, slot 00010520, 
dsp 00090210[0210]
  failing command because of reset, slot 00010520, cmnd 10081c00
  failing command because of reset, slot 00010ff4, cmnd 10081a00
  failing command because of reset, slot 000115f8, cmnd 10081800
scsi0: (2:0) Synchronous at offset 8, period 100ns
scsi0: (2:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =Read (10) 00 00 39 a5 e8 00 00 a0 00


cu,
   Sebastian



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Subject: Re: [parisc-linux] HP B132L hangs
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Joel Soete:
> Yes it looks like a disk becoming defective. The best way to be sure is 
> to use a hp cdrom containing Diagnostic tools (iirc the last hpux 
> support + would contains it). This cd is bootable and contains tools 
> allowing you test your disk.

I don't have such a cd...
I have only two HP cd sets:
"HP-UX Applications/Patches 10.20" 5 CDs
"Additional Core Enhancements HP-UX 10.20 Workstations" 1 CD

Do you know if one of them contains these tools?

> If you have another system on which you can connect your suspected disk 
> you can also try a dd cmd like:
> dd if=/dev/rdsk/c0txd0 of=/dev/null bs=2048k (where you replace 
> /dev/rdsk/c0txd0 by the actual disk path)

See my other post for results of backup... it provoced the same (or at 
least a similar) error :-/
I do not currently have another system I could put the disk in (I got a 
C200 but it is not in a working state right now). The disk does not 
contain too important data - but it was a lot of work to set up the router.


thx,
   Sebastian



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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] zalon & ncr53c8xx cleanups
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To: parisc-linux@parisc-linux.org, linux-scsi@vger.kernel.org
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I don't actually have a zalon machine to test these on, but they seem
right to me, and compile fine.

Some cleanups for ncr53c8xx & zalon:

 - Inline zalon.h into zalon.c
 - Rationalise (a little) ncr53c8xx.c's includes
 - Remove all the version checks
 - Stop using remap_pci_mem & unmap_pci_mem & delete their definitions.
 - Use mb() instead of custom inline asm for MEMORY_BARRIER.

Index: drivers/scsi/ncr53c8xx.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/ncr53c8xx.c,v
retrieving revision 1.4
diff -u -p -r1.4 ncr53c8xx.c
--- drivers/scsi/ncr53c8xx.c	8 Sep 2003 21:42:20 -0000	1.4
+++ drivers/scsi/ncr53c8xx.c	11 Sep 2003 18:04:23 -0000
@@ -115,64 +115,32 @@
 **==========================================================
 */
 
-#include <linux/version.h>
-
-#include <linux/module.h>
-#include <asm/dma.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,17)
-#include <linux/spinlock.h>
-#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,93)
-#include <asm/spinlock.h>
-#endif
+#include <linux/blkdev.h>
 #include <linux/delay.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/pci.h>
 #include <linux/dma-mapping.h>
+#include <linux/errno.h>
+#include <linux/init.h>
 #include <linux/interrupt.h>
-#include <linux/string.h>
-#include <linux/mm.h>
 #include <linux/ioport.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/spinlock.h>
+#include <linux/stat.h>
+#include <linux/string.h>
 #include <linux/time.h>
 #include <linux/timer.h>
-#include <linux/stat.h>
-
-#include <linux/blkdev.h>
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,35)
-#include <linux/init.h>
-#endif
-
-#ifndef	__init
-#define	__init
-#endif
-#ifndef	__initdata
-#define	__initdata
-#endif
+#include <linux/types.h>
 
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,1,92)
-#include <linux/bios32.h>
-#endif
+#include <asm/dma.h>
+#include <asm/io.h>
+#include <asm/system.h>
 
 #include "scsi.h"
 #include "hosts.h"
 
-#include <linux/types.h>
-
-/*
-**	Define BITS_PER_LONG for earlier linux versions.
-*/
-#ifndef	BITS_PER_LONG
-#if (~0UL) == 0xffffffffUL
-#define	BITS_PER_LONG	32
-#else
-#define	BITS_PER_LONG	64
-#endif
-#endif
-
 #include "ncr53c8xx.h"
 
 /*
@@ -1028,9 +996,7 @@ struct ncb {
 					/*  when lcb is not allocated.	*/
 	Scsi_Cmnd	*done_list;	/* Commands waiting for done()  */
 					/* callback to be invoked.      */ 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,93)
 	spinlock_t	smp_lock;	/* Lock for SMP threading       */
-#endif
 
 	/*----------------------------------------------------------------
 	**	Chip and controller indentification.
@@ -3739,7 +3705,7 @@ ncr_attach (Scsi_Host_Template *tpnt, in
 	if(device->slot.base_v)
 		np->vaddr = device->slot.base_v;
 	else
-		np->vaddr = remap_pci_mem(device->slot.base_c, (u_long) 128);
+		np->vaddr = (unsigned long)ioremap(device->slot.base_c, 128);
 
 	if (!np->vaddr) {
 		printk(KERN_ERR
@@ -3809,11 +3775,7 @@ ncr_attach (Scsi_Host_Template *tpnt, in
 	instance->max_id	= np->maxwide ? 16 : 8;
 	instance->max_lun	= SCSI_NCR_MAX_LUN;
 #ifndef SCSI_NCR_IOMAPPED
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,29)
 	instance->base		= (unsigned long) np->reg;
-#else
-	instance->base		= (char *) np->reg;
-#endif
 #endif
 	instance->irq		= device->slot.irq;
 	instance->unique_id	= device->slot.io_port;
@@ -9199,28 +9161,13 @@ printk("ncr53c8xx_proc_info: hostno=%d, 
 
 /*==========================================================
 **
-**	/proc directory entry.
-**
-**==========================================================
-*/
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,27)
-static struct proc_dir_entry proc_scsi_ncr53c8xx = {
-    PROC_SCSI_NCR53C8XX, 9, NAME53C8XX,
-    S_IFDIR | S_IRUGO | S_IXUGO, 2
-};
-#endif
-
-/*==========================================================
-**
 **	Boot command line.
 **
 **==========================================================
 */
 #ifdef	MODULE
 char *ncr53c8xx = 0;	/* command line passed by insmod */
-# if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,30)
 MODULE_PARM(ncr53c8xx, "s");
-# endif
 #endif
 
 int __init ncr53c8xx_setup(char *str)
@@ -9228,10 +9175,8 @@ int __init ncr53c8xx_setup(char *str)
 	return sym53c8xx__setup(str);
 }
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,13)
 #ifndef MODULE
 __setup("ncr53c8xx=", ncr53c8xx_setup);
-#endif
 #endif
 
 /*===================================================================
Index: drivers/scsi/sym53c8xx_comm.h
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/sym53c8xx_comm.h,v
retrieving revision 1.1
diff -u -p -r1.1 sym53c8xx_comm.h
--- drivers/scsi/sym53c8xx_comm.h	29 Jul 2003 17:01:30 -0000	1.1
+++ drivers/scsi/sym53c8xx_comm.h	11 Sep 2003 18:03:22 -0000
@@ -74,9 +74,7 @@
 **==========================================================
 */
 
-#if LINUX_VERSION_CODE >= LinuxVersionCode(2,3,47)
 #define SCSI_NCR_DYNAMIC_DMA_MAPPING
-#endif
 
 /*==========================================================
 **
@@ -262,8 +260,6 @@ static inline struct xpt_quehead *xpt_re
 **==========================================================
 */
 
-#if LINUX_VERSION_CODE >= LinuxVersionCode(2,2,0)
-
 typedef struct pci_dev *pcidev_t;
 typedef struct device *device_t;
 #define PCIDEV_NULL		(0)
@@ -276,17 +272,7 @@ typedef struct device *device_t;
 static u_long __init
 pci_get_base_cookie(struct pci_dev *pdev, int index)
 {
-	u_long base;
-
-#if LINUX_VERSION_CODE > LinuxVersionCode(2,3,12)
-	base = pdev->resource[index].start;
-#else
-	base = pdev->base_address[index];
-#if BITS_PER_LONG > 32
-	if ((base & 0x7) == 0x4)
-		*base |= (((u_long)pdev->base_address[++index]) << 32);
-#endif
-#endif
+	u_long base = pdev->resource[index].start;
 	return (base & ~0x7ul);
 }
 
@@ -310,102 +296,6 @@ pci_get_base_address(struct pci_dev *pde
 #undef PCI_BAR_OFFSET
 }
 
-#else	/* Incomplete emulation of current PCI code for pre-2.2 kernels */
-
-typedef unsigned int pcidev_t;
-typedef unsinged int device_t;
-#define PCIDEV_NULL		(~0u)
-#define PciBusNumber(d)		((d)>>8)
-#define PciDeviceFn(d)		((d)&0xff)
-#define __PciDev(busn, devfn)	(((busn)<<8)+(devfn))
-
-#define pci_read_config_byte(d, w, v) \
-	pcibios_read_config_byte(PciBusNumber(d), PciDeviceFn(d), w, v)
-#define pci_read_config_word(d, w, v) \
-	pcibios_read_config_word(PciBusNumber(d), PciDeviceFn(d), w, v)
-#define pci_read_config_dword(d, w, v) \
-	pcibios_read_config_dword(PciBusNumber(d), PciDeviceFn(d), w, v)
-
-#define pci_write_config_byte(d, w, v) \
-	pcibios_write_config_byte(PciBusNumber(d), PciDeviceFn(d), w, v)
-#define pci_write_config_word(d, w, v) \
-	pcibios_write_config_word(PciBusNumber(d), PciDeviceFn(d), w, v)
-#define pci_write_config_dword(d, w, v) \
-	pcibios_write_config_dword(PciBusNumber(d), PciDeviceFn(d), w, v)
-
-static pcidev_t __init
-pci_find_device(unsigned int vendor, unsigned int device, pcidev_t prev)
-{
-	static unsigned short pci_index;
-	int retv;
-	unsigned char bus_number, device_fn;
-
-	if (prev == PCIDEV_NULL)
-		pci_index = 0;
-	else
-		++pci_index;
-	retv = pcibios_find_device (vendor, device, pci_index,
-				    &bus_number, &device_fn);
-	return retv ? PCIDEV_NULL : __PciDev(bus_number, device_fn);
-}
-
-static u_short __init PciVendorId(pcidev_t dev)
-{
-	u_short vendor_id;
-	pci_read_config_word(dev, PCI_VENDOR_ID, &vendor_id);
-	return vendor_id;
-}
-
-static u_short __init PciDeviceId(pcidev_t dev)
-{
-	u_short device_id;
-	pci_read_config_word(dev, PCI_DEVICE_ID, &device_id);
-	return device_id;
-}
-
-static u_int __init PciIrqLine(pcidev_t dev)
-{
-	u_char irq;
-	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
-	return irq;
-}
-
-static int __init 
-pci_get_base_address(pcidev_t dev, int offset, u_long *base)
-{
-	u_int32 tmp;
-	
-	pci_read_config_dword(dev, PCI_BASE_ADDRESS_0 + offset, &tmp);
-	*base = tmp;
-	offset += sizeof(u_int32);
-	if ((tmp & 0x7) == 0x4) {
-#if BITS_PER_LONG > 32
-		pci_read_config_dword(dev, PCI_BASE_ADDRESS_0 + offset, &tmp);
-		*base |= (((u_long)tmp) << 32);
-#endif
-		offset += sizeof(u_int32);
-	}
-	return offset;
-}
-static u_long __init
-pci_get_base_cookie(struct pci_dev *pdev, int offset)
-{
-	u_long base;
-
-	(void) pci_get_base_address(dev, offset, &base);
-
-	return base;
-}
-
-#endif	/* LINUX_VERSION_CODE >= LinuxVersionCode(2,2,0) */
-
-/* Does not make sense in earlier kernels */
-#if LINUX_VERSION_CODE < LinuxVersionCode(2,4,0)
-#define pci_enable_device(pdev)		(0)
-#endif
-#if LINUX_VERSION_CODE < LinuxVersionCode(2,4,4)
-#define	scsi_set_pci_device(inst, pdev)	(0)
-#endif
 
 /*==========================================================
 **
@@ -428,7 +318,6 @@ pci_get_base_cookie(struct pci_dev *pdev
 **==========================================================
 */
 
-#if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,93)
 spinlock_t DRIVER_SMP_LOCK = SPIN_LOCK_UNLOCKED;
 #define	NCR_LOCK_DRIVER(flags)     spin_lock_irqsave(&DRIVER_SMP_LOCK, flags)
 #define	NCR_UNLOCK_DRIVER(flags)   \
@@ -443,20 +332,6 @@ spinlock_t DRIVER_SMP_LOCK = SPIN_LOCK_U
 #define	NCR_UNLOCK_SCSI_DONE(host, flags) \
 		spin_unlock_irqrestore(((host)->host_lock), flags)
 
-#else
-
-#define	NCR_LOCK_DRIVER(flags)     do { save_flags(flags); cli(); } while (0)
-#define	NCR_UNLOCK_DRIVER(flags)   do { restore_flags(flags); } while (0)
-
-#define	NCR_INIT_LOCK_NCB(np)      do { } while (0)
-#define	NCR_LOCK_NCB(np, flags)    do { save_flags(flags); cli(); } while (0)
-#define	NCR_UNLOCK_NCB(np, flags)  do { restore_flags(flags); } while (0)
-
-#define	NCR_LOCK_SCSI_DONE(host, flags)    do {;} while (0)
-#define	NCR_UNLOCK_SCSI_DONE(host, flags)  do {;} while (0)
-
-#endif
-
 /*==========================================================
 **
 **	Memory mapped IO
@@ -472,37 +347,11 @@ spinlock_t DRIVER_SMP_LOCK = SPIN_LOCK_U
 **==========================================================
 */
 
-#if LINUX_VERSION_CODE < LinuxVersionCode(2,1,0)
-#define ioremap vremap
-#define iounmap vfree
-#endif
-
 #ifdef __sparc__
-#  include <asm/irq.h>
-#  define memcpy_to_pci(a, b, c)	memcpy_toio((a), (b), (c))
-#elif defined(__alpha__)
-#  define memcpy_to_pci(a, b, c)	memcpy_toio((a), (b), (c))
-#else	/* others */
-#  define memcpy_to_pci(a, b, c)	memcpy_toio((a), (b), (c))
+#include <asm/irq.h>
 #endif
 
-#ifndef SCSI_NCR_PCI_MEM_NOT_SUPPORTED
-static u_long __init remap_pci_mem(u_long base, u_long size)
-{
-	u_long page_base	= ((u_long) base) & PAGE_MASK;
-	u_long page_offs	= ((u_long) base) - page_base;
-	u_long page_remapped	= (u_long) ioremap(page_base, page_offs+size);
-
-	return page_remapped? (page_remapped + page_offs) : 0UL;
-}
-
-static void __init unmap_pci_mem(u_long vaddr, u_long size)
-{
-	if (vaddr)
-		iounmap((void *) (vaddr & PAGE_MASK));
-}
-
-#endif /* not def SCSI_NCR_PCI_MEM_NOT_SUPPORTED */
+#define memcpy_to_pci(a, b, c)	memcpy_toio((a), (b), (c))
 
 /*==========================================================
 **
@@ -518,13 +367,8 @@ static void __init unmap_pci_mem(u_long 
 **==========================================================
 */
 
-#if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,105)
 #define UDELAY udelay
 #define MDELAY mdelay
-#else
-static void UDELAY(long us) { udelay(us); }
-static void MDELAY(long ms) { while (ms--) UDELAY(1000); }
-#endif
 
 /*==========================================================
 **
@@ -544,11 +388,7 @@ static void MDELAY(long ms) { while (ms-
 **==========================================================
 */
 
-#if LINUX_VERSION_CODE >= LinuxVersionCode(2,1,0)
 #define __GetFreePages(flags, order) __get_free_pages(flags, order)
-#else
-#define __GetFreePages(flags, order) __get_free_pages(flags, order, 0)
-#endif
 
 #define MEMO_SHIFT	4	/* 16 bytes minimum memory chunk */
 #if PAGE_SIZE >= 8192
@@ -2253,39 +2093,11 @@ sym53c8xx_pci_init(Scsi_Host_Template *t
 		command |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
 		pci_write_config_word(pdev, PCI_COMMAND, command);
 	}
-
-#if LINUX_VERSION_CODE < LinuxVersionCode(2,2,0)
-	if ( is_prep ) {
-		if (io_port >= 0x10000000) {
-			printk(NAME53C8XX ": reallocating io_port (Wacky IBM)");
-			io_port = (io_port & 0x00FFFFFF) | 0x01000000;
-			pci_write_config_dword(pdev,
-					       PCI_BASE_ADDRESS_0, io_port);
-		}
-		if (base >= 0x10000000) {
-			printk(NAME53C8XX ": reallocating base (Wacky IBM)");
-			base = (base & 0x00FFFFFF) | 0x01000000;
-			pci_write_config_dword(pdev,
-					       PCI_BASE_ADDRESS_1, base);
-		}
-		if (base_2 >= 0x10000000) {
-			printk(NAME53C8XX ": reallocating base2 (Wacky IBM)");
-			base_2 = (base_2 & 0x00FFFFFF) | 0x01000000;
-			pci_write_config_dword(pdev,
-					       PCI_BASE_ADDRESS_2, base_2);
-		}
-	}
-#endif
 #endif	/* __powerpc__ */
 
 #if defined(__i386__) && !defined(MODULE)
 	if (!cache_line_size) {
-#if LINUX_VERSION_CODE < LinuxVersionCode(2,1,75)
-		extern char x86;
-		switch(x86) {
-#else
 		switch(boot_cpu_data.x86) {
-#endif
 		case 4:	suggested_cache_line_size = 4; break;
 		case 6:
 		case 5:	suggested_cache_line_size = 8; break;
Index: drivers/scsi/sym53c8xx_defs.h
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/sym53c8xx_defs.h,v
retrieving revision 1.2
diff -u -p -r1.2 sym53c8xx_defs.h
--- drivers/scsi/sym53c8xx_defs.h	25 Aug 2003 19:49:06 -0000	1.2
+++ drivers/scsi/sym53c8xx_defs.h	11 Sep 2003 14:45:54 -0000
@@ -68,13 +68,8 @@
 **	Check supported Linux versions
 */
 
-#if !defined(LINUX_VERSION_CODE)
-#include <linux/version.h>
-#endif
 #include <linux/config.h>
 
-#define LinuxVersionCode(v, p, s) (((v)<<16)+((p)<<8)+(s))
-
 /*
  * NCR PQS/PDS special device support.
  */
@@ -183,11 +178,6 @@
 #define	SCSI_NCR_IOMAPPED
 #elif defined(__alpha__)
 #define	SCSI_NCR_IOMAPPED
-#elif defined(__powerpc__)
-#if LINUX_VERSION_CODE <= LinuxVersionCode(2,4,3)
-#define	SCSI_NCR_IOMAPPED
-#define SCSI_NCR_PCI_MEM_NOT_SUPPORTED
-#endif
 #endif
 
 /*
@@ -363,10 +353,6 @@
 
 #ifdef	__BIG_ENDIAN
 
-#if	LINUX_VERSION_CODE < LinuxVersionCode(2,1,0)
-#error	"BIG ENDIAN byte ordering needs kernel version >= 2.1.0"
-#endif
-
 #define	inw_l2b		inw
 #define	inl_l2b		inl
 #define	outw_b2l	outw
@@ -437,18 +423,9 @@
  *  Other architectures implement a weaker ordering that 
  *  requires memory barriers (and also IO barriers when they 
  *  make sense) to be used.
- *  We want to be paranoid for ppc and ia64. :)
  */
 
-#if	defined(__i386__) || defined(__x86_64__)
-#define MEMORY_BARRIER()	do { ; } while(0)
-#elif	defined	__powerpc__
-#define MEMORY_BARRIER()	__asm__ volatile("eieio; sync" : : : "memory")
-#elif	defined	__ia64__
-#define MEMORY_BARRIER()	__asm__ volatile("mf.a; mf" : : : "memory")
-#else
 #define MEMORY_BARRIER()	mb()
-#endif
 
 
 /*
Index: drivers/scsi/zalon.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/zalon.c,v
retrieving revision 1.3
diff -u -p -r1.3 zalon.c
--- drivers/scsi/zalon.c	23 Aug 2003 02:47:01 -0000	1.3
+++ drivers/scsi/zalon.c	11 Sep 2003 17:46:12 -0000
@@ -13,6 +13,8 @@
 #include <linux/config.h>
 #include <linux/module.h>
 
+#include <scsi/scsicam.h>
+
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/irq.h>
@@ -26,11 +28,27 @@
 
 #include "ncr53c8xx.h"
 
-#include "zalon.h"
-
 MODULE_AUTHOR("Richard Hirst");
 MODULE_DESCRIPTION("Bluefish/Zalon 720 SCSI Driver");
 MODULE_LICENSE("GPL");
+
+#define GSC_SCSI_ZALON_OFFSET 0x800
+
+#define IO_MODULE_EIM		(1*4)
+#define IO_MODULE_DC_ADATA	(2*4)
+#define IO_MODULE_II_CDATA	(3*4)
+#define IO_MODULE_IO_COMMAND	(12*4)
+#define IO_MODULE_IO_STATUS	(13*4)
+
+#define IOSTATUS_RY             0x40
+#define IOSTATUS_FE             0x80
+#define IOIIDATA_SMINT5L        0x40000000
+#define IOIIDATA_MINT5EN        0x20000000
+#define IOIIDATA_PACKEN         0x10000000
+#define IOIIDATA_PREFETCHEN     0x08000000
+#define IOIIDATA_IOII           0x00000020
+
+#define CMD_RESET		5
 
 static ncr_chip zalon720_chip __initdata = {
 	.device_id =	PSEUDO_720_ID,
Index: drivers/scsi/zalon.h
===================================================================
RCS file: drivers/scsi/zalon.h
diff -N drivers/scsi/zalon.h
--- drivers/scsi/zalon.h	29 Jul 2003 17:01:30 -0000	1.1
+++ /dev/null	1 Jan 1970 00:00:00 -0000
@@ -1,25 +0,0 @@
-#ifndef ZALON7XX_H
-#define ZALON7XX_H
-
-#include <linux/types.h>
-#include <scsi/scsicam.h>
-
-#define GSC_SCSI_ZALON_OFFSET 0x800
-
-#define IO_MODULE_EIM		(1*4)
-#define IO_MODULE_DC_ADATA	(2*4)
-#define IO_MODULE_II_CDATA	(3*4)
-#define IO_MODULE_IO_COMMAND	(12*4)
-#define IO_MODULE_IO_STATUS	(13*4)
-
-#define IOSTATUS_RY             0x40
-#define IOSTATUS_FE             0x80
-#define IOIIDATA_SMINT5L        0x40000000
-#define IOIIDATA_MINT5EN        0x20000000
-#define IOIIDATA_PACKEN         0x10000000
-#define IOIIDATA_PREFETCHEN     0x08000000
-#define IOIIDATA_IOII           0x00000020
-
-#define CMD_RESET		5

From - Thu Nov 08 21:29:09 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] HP B132L hangs
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On Thu, Sep 11, 2003 at 05:03:55PM +0200, Sebastian Br?ckner wrote:
> I tried to backup the system and got the a similar error with very few 
> messages mixed into it. Maybe this is better readable:

yes, much better

> scsi0: ERROR on channel 0, id 2, lun 0, CDB: Request Sense 00 00 00 40 00
> Info fld=0x39a27b, Current sd08:04: sense key Medium Error
> Additional sense indicates Unrecovered read error

This is the disk telling the driver it had a real failure.

...
> scsi0: (2:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
>          len = 6, cmd =Read (10) 00 00 39 a5 e8 00 00 a0 00

this output is the bug james mentioned was fixed in a later kernel.

grant


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From: Joel Soete <joel.soete@tiscali.be>
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Sebastian Brckner wrote:

> Joel Soete:
>
>> Yes it looks like a disk becoming defective. The best way to be sure 
>> is to use a hp cdrom containing Diagnostic tools (iirc the last hpux 
>> support + would contains it). This cd is bootable and contains tools 
>> allowing you test your disk.
>
>
> I don't have such a cd...
> I have only two HP cd sets:
> "HP-UX Applications/Patches 10.20" 5 CDs
> "Additional Core Enhancements HP-UX 10.20 Workstations" 1 CD 

I also get such set of cd's when I recieved the first b132 (it was also 
one of the first in belgium) and I think that tools would be on the 
patch cd but i don't remember exactly. I will check when I will be back 
to the office (in 10 days :( sorry)

>
>
> Do you know if one of them contains these tools?
>
>> If you have another system on which you can connect your suspected 
>> disk you can also try a dd cmd like:
>> dd if=/dev/rdsk/c0txd0 of=/dev/null bs=2048k (where you replace 
>> /dev/rdsk/c0txd0 by the actual disk path)
>
>
> See my other post for results of backup... it provoced the same (or at 
> least a similar) error :-/

Yes I read it also and as mentioned Grant "I/O error:..." message 
confirm my first opinion (and my experience with my b180 near the same 
b132L execepted cpu frequency) unfortunaltely your disk became faulty 
(the most frequent part replaced over 300 unix server I have to maintain)

>
> I do not currently have another system I could put the disk in (I got 
> a C200 but it is not in a working state right now). The disk does not 
> contain too important data - but it was a lot of work to set up the 
> router. 


So the best would be to try to backup the most of your /etc (where stand 
generaly config files), additonal config files that you remember, and 
may be also your /var/lib/dpkg (the debian pakages db: it could help to 
remember which packages where installed).  Then, if you can,  replace 
your disk, and re-install your system.

I also had to reinstall two systems like this this year: one because of 
a cpu failure (a b2k) and one also due a disk failure. (I would so have 
a look for tools as mkcdrecord or mondo [don't know which is the most 
simple to implement] but i do not yet find enough time to build any 
recovery cd. On the other hand i had the opportunity to install raid1 on 
my main systems (2 b180; a fw and a test one for cvs kernels and 
unstable debian install)).

Good luck,
    Joel



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Subject: Re: [parisc-linux] [PATCH] zalon & ncr53c8xx cleanups
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Matthew Wilcox wrote:

>I don't actually have a zalon machine to test these on, but they seem
>right to me, and compile fine.
>
>Some cleanups for ncr53c8xx & zalon:
>
> - Inline zalon.h into zalon.c
> - Rationalise (a little) ncr53c8xx.c's includes
>
I will try to test this last next week on the c110 (which I recover from 
trash) on which I just install debian 3.0r0 cd1 (so still have to update 
to unstable before all)

hth,
    Joel




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Subject: [parisc-linux] Re: Looking for info on getting X running on my 712
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On Thu, Sep 11, 2003 at 06:36:46PM -0700, Thomson Family wrote:
> Hi Grant,
> 
> This isn't exactly a developer question, but if you could point me in 
> the right direction, I'd appreciate it.

parisc-linux@lists.parisc-linux.org is normally a good starting point.
I've cc'd the list in case someone else has better ideas.

> 
> I've loaded Debian's Woody on my 712 and everything seems to be 
> working fine, but I'm unable to get X up and running.  I can't seem 
> to find any info on doing so. Ultimately I get "Screen/ScreenInit 
> failed for driver 0" when I run startx. I've noticed that when things 
> work fine for other folks, there isn't much posted on the web.

The 712's have been working quite awhile and it's just further
back in the mail archives! ;^)

You might also look at ftp://ftp.parisc-linux.org/kernels/712/
and try out the XF86Config files there.

grant

> 
> thanks!
> Pat Thomson
> 


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Subject: Re: [parisc-linux] Re: Looking for info on getting X running on my 712
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On Thu, 2003-09-11 23:30:49 -0600, Grant Grundler <grundler@parisc-linux.or=
g>
wrote in message <20030912053049.GA20242@dsl2.external.hp.com>:
> On Thu, Sep 11, 2003 at 06:36:46PM -0700, Thomson Family wrote:

> > I've loaded Debian's Woody on my 712 and everything seems to be=20
> > working fine, but I'm unable to get X up and running.  I can't seem=20
> > to find any info on doing so. Ultimately I get "Screen/ScreenInit=20
> > failed for driver 0" when I run startx. I've noticed that when things=
=20
> > work fine for other folks, there isn't much posted on the web.
>=20
> You might also look at ftp://ftp.parisc-linux.org/kernels/712/
> and try out the XF86Config files there.

Basically, you need a kernel with STI framebuffer support and configure
XFree to use the fremebuffer driver. Mouse and keyboard are standard
PS/2 components so there's no problem, too. If your colors are totally
wrong, place 'Visual "TrueColor"' into the "Display" subsection of your
"Screen" section. Pay attention to your screen resolution and color
depth - they have to exactly match to what you get on boot-up since
there's no support to switch to another resolution/depth right now IIRC.

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
      ret =3D do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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From: northern snowfall <dbailey27@ameritech.net>
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Hi, all

    I recently bought a PA-RISC 1.1 Apollo 9000/735 workstation
from UMich dispo. I couldn't pass up on the low low price ;-).
However, I'm stuck in Graphics mode because I do not have access
to the 3BNC Monitor or a HIL keyboard to get access to the PROM.

    If anyone is in the UMich-Ann Arbor area and wants to help me
set this thing into serial console mode, I'd appreciate it. I've
contacted CAEN and am awaiting response. Email me privately to
negotiate a time and neutral location on campus.

Don

http://www.7f.no-ip.com/~north_

FAI the web site is down while i recode the NetBSD kernel.




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northern snowfall [dbailey27@ameritech.net] wrote:
> Hi, all
> 
>    I recently bought a PA-RISC 1.1 Apollo 9000/735 workstation
> from UMich dispo. I couldn't pass up on the low low price ;-).
> However, I'm stuck in Graphics mode because I do not have access
> to the 3BNC Monitor or a HIL keyboard to get access to the PROM.

pulling the framebuffer out of the sgc-slot should result in console 
on the first serial-port.


        - paul

-- 
   zwei jaeger treffen sich. beide tot.


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>
>
>pulling the framebuffer out of the sgc-slot should result in console 
>on the first serial-port.
>

Dude, I read through the service manual and did *not* see that tip
anywhere. I tried the usual Sun style keyboardless-serial console
technique, which failed. This, however, worked on the first try.

If you're ever in the Ann Arbor, Michigan area and you'd like
someone to buy you a pint, let me know.

Don

http://www.7f.no-ip.com/~north_

FAI the web site is down while i recode the NetBSD kernel.





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Subject: [parisc-linux] Re: Looking for info on getting X running on my 712
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> Basically, you need a kernel with STI framebuffer support and configure
> XFree to use the fremebuffer driver. Mouse and keyboard are standard
> PS/2 components so there's no problem, too. If your colors are totally
> wrong, place 'Visual "TrueColor"' into the "Display" subsection of your
> "Screen" section. Pay attention to your screen resolution and color
> depth - they have to exactly match to what you get on boot-up since
> there's no support to switch to another resolution/depth right now IIRC.

Does this mean that's there is no way to run with a 24 bit depth
on a Vis-EG?  I have been playing with this but I haven't had any luck.
There doesn't seem to be any way to change the depth from 8 bpp on a
c3k using the PDC (there is user defined parameter set but it's not
clear how it can be set other than possibly with sam under hpux).  I
tried "stifb=bpp32:" but this didn't have any effect on the reported
1280x1024-8 config in dmesg:

STI GSC/PCI graphics driver version 0.9
STI PCI graphic ROM found at f6000000 (64 kB), fb at f8000000 (32 MB)
STI word mode ROM at f6000044, hpa at f8000000
STI id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
STI device: PCI_GRAFFITIX1280
STI PCI graphic ROM found at f7000000 (2048 kB), fb at fa000000 (32 MB)
STI word mode ROM at f7000044, hpa at fa000000
STI id 35acda30-9a02587, conforms to spec rev. 8.0d
STI device: A1262A
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, id: 2d08c0a7, mmio: 0xf8100000
stifb: Unsupported gfx card id 0x35acda30

The linux config has

CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB32=y
CONFIG_FBCON_STI=y

Oh, I've one other X config problem.  The usb mouse stops responding
at logout from kde.  If I restart the X server with <alt>E, functionality
is restored.  I don't believe that this is a kde problem.  Anybody have
a solution?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Signal handlers in glibc 2.3.2
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tausq, jejb,

Another tall order, and I'm calling for help on this one. The recently
fixed glibc seems to be having issues with restarting after being
interrupted.

Latest glibc 2.3.2 patches are here:
http://www.baldric.uwo.ca/~carlos/glibc-2.3.2-patches.tar.gz
Broken test is distilled here:
http://www.baldric.uwo.ca/~carlos/tst-timer.tar.gz

The test does very very little. We setup a timer to call a signal
handler after a 2 second expiry, then we proceed to call nanosleep with
a 3 second expiry.

./run.sh ./tst-timer
Before nanosleep(...) call
Signal handler
./run.sh: line 3:  5500 Segmentation fault

You see that we enter nanosleep, enter the kernel, sleep, event timer
expires and raises signal, signal handler runs.

At this point the following is supposed to happen:
Branch back to stack and make another syscall into the kernel
(trampoline we put there to make it back to rt_sigreturn, see signal.c).
...
At this point I'm a bit confused by the semantics, would one of you care
to help me understand what happens from there back to userspace. I know
we eventually have to get back to where nanosleep was called (since it
was interrupted and now needs to be restarted).
...
So we enter the syscall code in syscall.S execute syscall 173 which
jumps to 'sys_rt_sigreturn' in signal.c. From here we unwind the stack
to get an rt_sigframe structure (which I assume was written into the
stack before calling the signal handler). Take the current signal set
from there and recalc pending signals. Then there is a bit of magic to
restore the current stack pointer, which seems to me is where the
problem lies since frame->uc.uc_mcontext on a 64-bit box probably won't
be right because we copied it wrong. There are a few other things that
might be wrong too, but this is a start. I'm enabling signal debugging
and building a new kernel. I assume that the sigsegv is caused by the
kernel trying to __copy_from_user something invalid.

Any thoughts or comments would be more than appreciated.

Cheers,
Carlos.



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From: Jeremy Drake <jeremyd@apptechsys.com>
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Subject: [parisc-linux] Win2k server boot howto
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This is about using the dhcp server in win2k server to net boot a parisc 
box.

On Sat, 30 Aug 2003, Matthew Wilcox wrote:

> On Fri, Aug 29, 2003 at 04:14:04PM -0700, Jeremy Drake wrote:
> > I have done it with the DHCP server that comes with win2k server.
> 
> I think this might be useful information for the FAQ.  Could you write
> it up?

Here is my first attempt at writing this up.  Please send your
criticisms/spelling fixes/flames.

------------------------------

I used Tftpd from http://tftpd32.jounin.net/ (which, in an unrelated side
note, was used as part of the blaster worm, according to the site).  I
used the dhcp server which is a part of win2k server (Control Panel,
Add/remove programs, Windows components, Networking Services, Dynamic Host
Configuration Protocol (DHCP)).

First, lets ask the box what its mac address is.  I'm assuming you have a
functional console.  Power on the box, and when it says "press any key to"  
whatever press any key, and at the BOOT_ADMIN> prompt, type "in la" and
hit enter.  (For those of you who like to type, that's short for
information lan).  It will give you a hex number which is your
workstation's mac address.

Start up the DHCP admin tool (Start, Settings, Control Panel, Admin.  
Tools, DHCP).  Expand your server in the tree, and right click on
Reservations.  Select "New Reservation...".  For reservation name, I put
my box's name.  Give it an ip address that is not used in IP address, and
enter the box's mac address in mac address (no delimiters, just a big hex
number), and select Both for whether it should be bootp or dhcp.  Then,
find your new reservation at the bottom of the list under Reservations,
and click it.  Right click and choose "Configure Options..."  It should
have inherited your server's default options, so I won't cover setting
router, dns, wins, and lease length.  Scroll down the list of options
until you get to 066, Boot Server Host Name.  Check the box next to that
option, and enter your tftp server's ip address (I don't trust dns to work
in IPL).  Also check 067, Bootfile Name, and enter the name of the
lifimage (generally, lifimage is a good choice here).  Say ok to that box,
we're done in dhcp!

Fire up tftpd32, and click the "browse" button.  Browse to where you put
your lifimage, and say ok.  Make sure the ip address below the directory
is the right one; if not, drop down the list and pick the right one.  
Leave this app up, the server only runs when the gui is displayed (not
sure if you can run it as a service)

Now we're ready to boot the box.  Go back to the box, get the BOOT_ADMIN>
prompt again (if you turned it off after the first time, or type "ma" for
the main menu if you didn't).  Type "sea" (for search), and if everything
is good, you should see something like "P0 LAN.<BLAH>".  If you do,
congrats, if not, check all of the settings on the server (like, you
recorded and typed the mac address correctly, and your dhcp server is on
the same physical network segment as your workstation).  If it shows a
line like the above, enter "bo p0" (or whichever p number the LAN was by).  
Anything beyond this point belongs to an install howto more than a win2k
server boot howto...

--------------------------------




-- 
Computers make excellent and efficient servants, but I have no wish to
serve under them.  Captain, a starship also runs on loyalty to one
man.  And nothing can replace it or him.
		-- Spock, "The Ultimate Computer", stardate 4729.4


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] Re: Looking for info on getting X running on my 712
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On Fri, Sep 12, 2003 at 02:57:19PM -0400, John David Anglin wrote:
> Does this mean that's there is no way to run with a 24 bit depth
> on a Vis-EG?

that's correct. Vis-EG only supports 8-bit color.
We could get 24-bit color if we could get FX-E cards working but
they suffer the same lack of support as FX-[246] cards.

I've switched to using "TrueColor" until Xf86 "render" module
stops hogging most of the colormap. Regular text modes are fine.
Image quality does suffer though.

BTW, Vis-EG on C3k does support 1600x1200 if you multi-sync monitor
can handle it. Most LCD displays can not.

...
> Oh, I've one other X config problem.  The usb mouse stops responding
> at logout from kde.  If I restart the X server with <alt>E, functionality
> is restored.  I don't believe that this is a kde problem.  Anybody have
> a solution?

This is an old problem. First mention of it was several years ago.
More recently (Sept 2002) there's a whole thread on it starting with:
    http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017724.html

Work around is to switch to VT1 (ctl-alt-F1) and then back to the
FB VT (ctl-alt-F2 in my case).

grant


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--802bf47a-a356-435f-b06b-3443e4eaa03d
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable


FROM: PRINCE MABAKA STEPHENS.
EMAIL :princemabaka@netscape.net

with warm hearts I offer my friendship, and my greetings, and I hope this =
letter meets you in good
time. It will be surprising to you to receive this proposal from me since you =
do not know men personally.
However, I am sincerely seeking your confidence in this transaction, which I =
propose with my free mind
and as a person of integrity.
My name is PRINCE MABAKA , the son of STEPHEN MABAKA , a farmer from =
Zimbabwe, murdered in the land dispute in
my country. As led by my instinct, I deided to contact you through =
email,after searching for contacts via the internet, as it is the only means =
I
can contact anybody since I am cutting off ties with Zimbabwe for now. I =
apologize if this is not acceptable to you.
The purpose of this letter is to seek your most needed assistance in a =
business venture. Due to the land and
political problems in Zimbabwe, as a result of President Robert =
Mugabesintroduction of new Land Act Reform.
wholly affecting the rich white farmers and the few rich black farmers, all =
white
farmers were asked to surrender their farms to the government for =
re-distribution
and infact to his political party members and my father though black was
the treasury of the farmers association and a strong member of an opposition
party that did not support the president's idea.
He then ordered his party members and the police under his pay row to invade =
my father's farm and burn down
everything in the farm. They killed my father and took away a lot of =
properties from his farm.
After the death of my father, our local pastor and a close friend of my =
father handed us over will
documents with instructions from my father that we should leave Zimbabwe =
incase anything happen to him.
The will documents has a ertificate of deposit, confirming a cash deposit =
totaling Twelve million
five hundred thousand united state dollars. [12.5m] Kept in custody for us in =
a security company unknown
to the company that the content is money hence it was deposited as pesonal =
belongings. This money was
deposited with this Private Security Company for safety and security reasons, =
and was to be used for
the purchase of land, new machines and chemicals establishment of new farms =
in Botswana.
This violent and barbaic act by Mugabe has since led to the death of my =
beloved mother and kid sister and
other innocent lives.
I was continually threatened to abandon my inheritance from my father after =
he was murdered. I resisted for a
while, but when the danger bcame unbearable, and I survived two murder =
attempts,I fled Zimbabwe with the help of my father's close friend Mr. John =
Casahans
from Australia also a farmer who was leaving in Zimbabwe with us but left =
with his family following this ugly developmnt I have tried to reach him
but all to no avail.
I am currently staying in the Netherlands where I am seeking political =
asylum. In fact my decision to come here to seek
asylum, is because the security company from South Africa, has a branch here, =
I
have contacted them to move the safe deposit from their office in =
Johannesburg here, which they have since done.
I need to transfer this money to an account and invest part of the money. =
Since the law of Netherlands
prohibits a refugee (aslum seeker) to open any bank account or to be involved =
in any financial transaction,
this is why I am seeking agenuine and reliable partner, whose account this =
money can be trasferred, hence this proposal
to you.
You have to understand that this decision taken by me is a very big and brave =
one, and it entrusts my future
in your hands, as a result of the safe keeping of this money.
If you accept to assist me, all I want you to do for me, is to assist with =
arrangements to claim the depsit from the security
company from their office here in The Netherlands, as it has now been =
transferred from Johannesburg, South Africa to
their branch here. The company will be  informed of you representing me.
For your assistance, I have two options for you.
Firstly you can choose to have 20% of the money for your assistance, and =
helping me open an account for
the money to be deposited here, or you can go into patnership with me for the =
proper profitable
investment of the money in your country. Whichever the option you want, =
please to notify me in your reply.
I have also set aside 1 % of this money for all kinds of expenses that come =
our way in the process of this
transaction, and 4% for Charity donation. If you prefer to accept the 20% for =
your moral and financial
assistance then the balance will be left in the account here for me.
Please, I want you to maintain absolute secrecy for the purpose of this =
transaction.Your reply should be sent to my private
email address only where upon i shall brief you on the modalities to ensuring
=

its realisation.
I look forward to your reply and co-operation, and I
thank you in advance as I anticipation
e your co-operation.
Sincerely,
PRINCE MABAKA STEPHENS.

  
--802bf47a-a356-435f-b06b-3443e4eaa03d--



From - Thu Nov 08 21:29:10 2018
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X-Mozilla-Keys:                                                                                 
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From: prince mabaka <princmabak@netscape.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] URGENT/ASAP NOTIFICATION.
Date: Sat, 13 Sep 2003 21:13:18 +0200
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--4936a50b-5c10-41d6-b5af-2ac61b0bce4e
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable


FROM: PRINCE MABAKA STEPHENS.
EMAIL :princemabaka@netscape.net

with warm hearts I offer my friendship, and my greetings, and I hope this =
letter meets you in good
time. It will be surprising to you to receive this proposal from me since you =
do not know men personally.
However, I am sincerely seeking your confidence in this transaction, which I =
propose with my free mind
and as a person of integrity.
My name is PRINCE MABAKA , the son of STEPHEN MABAKA , a farmer from =
Zimbabwe, murdered in the land dispute in
my country. As led by my instinct, I deided to contact you through =
email,after searching for contacts via the internet, as it is the only means =
I
can contact anybody since I am cutting off ties with Zimbabwe for now. I =
apologize if this is not acceptable to you.
The purpose of this letter is to seek your most needed assistance in a =
business venture. Due to the land and
political problems in Zimbabwe, as a result of President Robert =
Mugabesintroduction of new Land Act Reform.
wholly affecting the rich white farmers and the few rich black farmers, all =
white
farmers were asked to surrender their farms to the government for =
re-distribution
and infact to his political party members and my father though black was
the treasury of the farmers association and a strong member of an opposition
party that did not support the president's idea.
He then ordered his party members and the police under his pay row to invade =
my father's farm and burn down
everything in the farm. They killed my father and took away a lot of =
properties from his farm.
After the death of my father, our local pastor and a close friend of my =
father handed us over will
documents with instructions from my father that we should leave Zimbabwe =
incase anything happen to him.
The will documents has a ertificate of deposit, confirming a cash deposit =
totaling Twelve million
five hundred thousand united state dollars. [12.5m] Kept in custody for us in =
a security company unknown
to the company that the content is money hence it was deposited as pesonal =
belongings. This money was
deposited with this Private Security Company for safety and security reasons, =
and was to be used for
the purchase of land, new machines and chemicals establishment of new farms =
in Botswana.
This violent and barbaic act by Mugabe has since led to the death of my =
beloved mother and kid sister and
other innocent lives.
I was continually threatened to abandon my inheritance from my father after =
he was murdered. I resisted for a
while, but when the danger bcame unbearable, and I survived two murder =
attempts,I fled Zimbabwe with the help of my father's close friend Mr. John =
Casahans
from Australia also a farmer who was leaving in Zimbabwe with us but left =
with his family following this ugly developmnt I have tried to reach him
but all to no avail.
I am currently staying in the Netherlands where I am seeking political =
asylum. In fact my decision to come here to seek
asylum, is because the security company from South Africa, has a branch here, =
I
have contacted them to move the safe deposit from their office in =
Johannesburg here, which they have since done.
I need to transfer this money to an account and invest part of the money. =
Since the law of Netherlands
prohibits a refugee (aslum seeker) to open any bank account or to be involved =
in any financial transaction,
this is why I am seeking agenuine and reliable partner, whose account this =
money can be trasferred, hence this proposal
to you.
You have to understand that this decision taken by me is a very big and brave =
one, and it entrusts my future
in your hands, as a result of the safe keeping of this money.
If you accept to assist me, all I want you to do for me, is to assist with =
arrangements to claim the depsit from the security
company from their office here in The Netherlands, as it has now been =
transferred from Johannesburg, South Africa to
their branch here. The company will be  informed of you representing me.
For your assistance, I have two options for you.
Firstly you can choose to have 20% of the money for your assistance, and =
helping me open an account for
the money to be deposited here, or you can go into patnership with me for the =
proper profitable
investment of the money in your country. Whichever the option you want, =
please to notify me in your reply.
I have also set aside 1 % of this money for all kinds of expenses that come =
our way in the process of this
transaction, and 4% for Charity donation. If you prefer to accept the 20% for =
your moral and financial
assistance then the balance will be left in the account here for me.
Please, I want you to maintain absolute secrecy for the purpose of this =
transaction.Your reply should be sent to my private
email address only where upon i shall brief you on the modalities to ensuring
=

its realisation.
I look forward to your reply and co-operation, and I
thank you in advance as I anticipation
e your co-operation.
Sincerely,
PRINCE MABAKA STEPHENS.

  
--4936a50b-5c10-41d6-b5af-2ac61b0bce4e--



From - Thu Nov 08 21:29:10 2018
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X-Mozilla-Keys:                                                                                 
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From: "Microsoft" <security@microsoft.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Use this patch immediately !
Date: Sun, 14 Sep 2003 04:14:39 -0600 (MDT)
Lines: 255
Approved: news@gmane.org
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--xxxx
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Dear friend , use this Internet Explorer patch now!
There are dangerous virus in the Internet now!
More than 500.000 already infected!

--xxxx
Content-Type: application/download
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename=patch.exe

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--xxxx



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Xref: news.gmane.org gmane.linux.ports.parisc:19500

	Hi,
I'm still looking to speed up dump creation. One solution (and with
less re-work) is to dump directly in memory, mark pages as
reserved, reboot a brand new kernel with an add-on to still
have dump pages marked as reserved (without clearing memory,
by-passing bios, etc...), and then use the standart
disk driver to flush the dump, and then release the pages.

I think that main part of the job has already been done with
kexec, does someone already looked at it to port on pa-linux ?

     Cheers.

-- 
	Vidal Bruno, (770-4271)
         SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@hp.com



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Xref: news.gmane.org gmane.linux.ports.parisc:19501

ATTN=3A HANS=2C


I am BARRISTER VICTOR MICHELLE =28ESQ=29A Solicitor=2E I am the Personal Attorney to Mr=2E JAMES HANS  a national of your country=2Cwho used to work with Chevron company in Nigeria=2EOn the 21st of April 2000=2C my client=2C his wife And their three children were involved in a car accident along Sagbama Express Road=2E

All occupants of the vehicle unfortunately lost there lives=2E Since then I have made several enquiries to your embassy to locate any of my clients extended relatives=2C this has also proved unsuccessful=2EAfter these several unsuccessful attempts=2C I decided to trace his relatives over the Internet=2C to locate any member of his family but of no avail=2C hence I contacted you=2E I have contacted you to assist in repartrating the money and property left behind by my client before they get confisicated or declared unserviceable by the National Bank PLC where this huge deposits were lodged=2E Particularly=2Cthe National Bank PLC where the deceased had a valued at about 9 million dollars has issued me a notice to provide the next of kin or have the account confisicated =2E

since I have been unsuccesfull in locating the the relatives for over 2 years now I seek your conscent to present you as the next of kin of the deceased since you are from the same country so that the proceeds of this account valued at $9 million dollars can be paid to you and then you and me can share the money=2E 55% to me and 40% to you=2Cwhile 5% has been earmarked to reimburse all expenses that may occure during this transaction

 All I require is your honest cooperation to enable us see this dealt=2E I guarantee that this will be executed under a legitimate 
arrangement that will protect you from any breach of the law=2EPlease send me your full name and address=2C your telephone and fax number to enable us discuss further and file in an application of claim on your behalf to the National Bank PLC=2E 

Best Regards=2C 

BARRISTER VICTOR MICHELLE =28ESQ=29





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From: Jacek Chmielewski <jchmiel@kti.ae.poznan.pl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP 9000 J200 + Debian
Date: Tue, 16 Sep 2003 15:04:49 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:19502

Hello HP 9000 J200 owner,

I found your email address on PA-RISC LINUX website (page
http://hwdb.parisc-linux.org/view.php3?type=machine&name=J200) and I hope
you could help me with my J200 box.

I want to install Debian on my HP 9000 J200 box and I encountered a problem
with booting the installation procedure:

Selected kernel: /vmlinux32 from partition 0
Selected ramdisk: /ramdiski from partition 0
ELF32 executable
Entry 00100098 first 00100000 n 6
Segment 0 load 00100000 size 2196688 mediaptr 0x1000
Segment 1 load 0031a000 size 467792 mediaptr 0x21a000
Segment 2 load 00390000 size 255656 mediaptr 0x28d000
Segment 3 load 003d0000 size 8192 mediaptr 0x2cc000
Segment 4 load 003d8000 size 32768 mediaptr 0x2ce000
Segment 5 load 00402048 size 110832 mediaptr 0x2d6048

ERROR: Read from boot device failed (status = -13).
byteio_read: seekread() returned -1 expected 2195456
ERROR: segment 0 read() failed
Fatal error loading kernel executableERROR: failed to load kernel 

I tried the Debian binary-1 CD and netinstall CD. Both with almost same
results ('status = -7' for Debian CD, and 'status = -13' for netinstall
CD).

What could be wrong? Do you know any possible source of this problem?

Best regards
  Jacek Chmielewski




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From: Jacek Chmielewski <jchmiel@kti.ae.poznan.pl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP 9000 J200 + Debian
Date: Tue, 16 Sep 2003 15:28:14 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:19503

I want to install Debian on my HP 9000 J200 box and I encountered a problem
with booting the installation procedure:

Selected kernel: /vmlinux32 from partition 0
Selected ramdisk: /ramdiski from partition 0
ELF32 executable
Entry 00100098 first 00100000 n 6
Segment 0 load 00100000 size 2196688 mediaptr 0x1000
Segment 1 load 0031a000 size 467792 mediaptr 0x21a000
Segment 2 load 00390000 size 255656 mediaptr 0x28d000
Segment 3 load 003d0000 size 8192 mediaptr 0x2cc000
Segment 4 load 003d8000 size 32768 mediaptr 0x2ce000
Segment 5 load 00402048 size 110832 mediaptr 0x2d6048

ERROR: Read from boot device failed (status = -13).
byteio_read: seekread() returned -1 expected 2195456
ERROR: segment 0 read() failed
Fatal error loading kernel executableERROR: failed to load kernel 

I tried the Debian binary-1 CD and netinstall CD. Both with almost same
results ('status = -7' for Debian CD, and 'status = -13' for netinstall
CD).

What could be wrong? Do you know any possible source of this problem?

Best regards
  Jacek Chmielewski




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From: "GOMEZ" <awardwinner@yehey.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] CONGRATULATION!!!!!
Date: Tue, 16 Sep 2003 15:51:43 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:19504

DATE=3A 16th SEPTEMBER 2003 
FROM=3A THE DESK OF THE VICE PRESIDENT=2E 
INTERNATIONAL PROMOTIONS=2FPRIZE AWARD=2E=2E 
BATCH=3A EGS=2F 22504002=2F03=3A REFERENCE=3A 15=2F0018=2FIPD 

ATTENTION=3A CNOGRATULATION RE=3A AWARD NOTIFICATION=2E 

This is to inform you of the release of the EL-GORDO DE LA PRIMITIVA LOTTERY 
held on the 23rd of June 2003=2C but due to the mix up of numbers and address 
and the holidays=2C the results were released on the 9th of August 2003=2E 
Your name was attached to ticket number 085-12876077-09 with serial number 
51390-0 that drew the lucky numbers of 03-05-12-14-28-38=2C which consequently 
won the lottery in the 5th category=2E You have therefore been approved for a 
lump sum pay of Euros 2=2C800=2E809=2E00=2E =28TWO MILLION EIGHT HUNDRED THOUSAND 
EIGHT HUNDRED AND NINE EUROS ONLY=29in cash credited to file with REF=3A 
N=C2=BA=2EEGS=2F3662367114=2F13=2EThis is from a total cash prize of Euros 
70=2C020=2E225=2E00=2E=2C shared among the twenty five international winners in this 
category=2E 
CONGRATULATIONS!!! 
Your fund is now deposited with our Security Company and insured in your 
name=2E Due to mix up of some numbers and names=2C we ask that you keep this 
award from public notice until your claims has been processed and the money 
remitted to your account as this is part of our security protocol to avoid 
double claiming of unwarranted taking advantage of this program by 
participants as it has happened in the past=2E 
All participants were selected through a computer ballot system drawn from 
25=2C000 names from Asia=2C Australia=2C New Zealand=2C Europe=2C North and South 
America=2C Middle East and Africa as part of our International Promotions 
Program=2E 
We hope your lucky name will draw a bigger cash prize in the subsequent 
programs=2E 
To begin your lottery claims =2C please contact your claims agent=2C MR Raymond 
F=2EThompson=2E Foreign operation manager=2C MAPFRE INSURANCE AND SECURITY 
COMPANY S=2CA=2E=2E=2E on E-MAIL=3A lotteryaward=40yehey=2Ecom
Remember=2C all prize money must be claimed not later than 25th December=2C 2003 
Any claim not made before this date will be returned to the MINISTERIO DE 
ECONOMIA Y HACIENDA=2E And also be informed that 10% of your lottery winning 
belongs to =28 PROMOTION COMPANY=2E=29 Because they are the company that bought 
your ticket and played the lottery on your name=2C NOTE this 10% will be 
remitted after you have received your winnings prize because the money is 
insured in your name already=2E 
NOTE=3A In order to avoid unnecessary delays and complications=2C please 
remember to quote your reference and batch numbers in every correspondence 
with us or your claim agent=2E furthermore=2C should there be any change of 
address=2C please do inform your claim agent as soon as possible=2E an original 
copy of your lucky winning ticket and your deposit certificate will be sent 
to you by your claim agent=2C MR RAYMOND F=2E THOMPSON=2C CONGRATULATION!!!!! Once 
again from all members of our staff and thank you for being a part of our 
International promotions program=2E 
we wish you continued good fortunes=2E 
Sincerely=2C 

MR ANTONIO GOMEZ 
VICE PRESIDENT 










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From: "Frankie Doran" <78nqjhcr@msn.com>
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Subject: [parisc-linux] how to have POWER erections z
Date: Wed, 17 Sep 03 07:08:49 GMT
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Ok thanks to everyone i now have the graphics card and it appears to work a 
little better as i now get a nice picture of a penguine in the top left corner 
when i boot tha machine.... although i am not sure what type of card i should 
configure it as under X.... what other ways are there of configuring X other 
then xf86config as it's rather confusing. Thanks



Quoting mmogenius@v8fiesta.co.uk:

> Thanks for the link i am sure i had searched ebay but never got any results 
> prehaps i was searching for items in the UK only. 
> 
> I presume not thast many people have these boxes over here and there not 
> tremendiousaly popular through out ? 
> 
> i'll go for the card and get the adaptehr for a normal monitor. Thanks. 
> #
> 
> 
> Quoting "M. Grabert" <xam@cs.ucc.ie>:
> 
> > On Thu, 28 Aug 2003 mmogenius@v8fiesta.co.uk wrote:
> > 
> > > Thanks once again
> > >
> > > Do you prehaps know how much the card wiull cost me and where i can get
> one
> > in
> > > the uk...
> > 
> > Well, Ebay + "Visualize EG" brings up following result:
> > 
> > http://search.ebay.co.uk/ws/search/SaleSearch?
> 
satitle=Visualize+EG&saavailabletocountry=3&socurrencydisplay=2&ebaytag1code_tm
> 
p=3&ebaytag1_tmp=ebayavail&sosortproperty=1&ht=1&from=R10&sorecordsperpage=50&B
> asicSearch=
> > 
> > All of these three offers are currently below 10 Pound,
> > but international shipping is quite expensive (one offer says US $25).
> > 
> > I'd say go for it anyway.
> > 
> > 
> > Max
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> > 
> 
> 
> 
> 
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> parisc-linux@lists.parisc-linux.org
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On Tue, Sep 16, 2003 at 06:39:03PM +0100, mmogenius@v8fiesta.co.uk wrote:
> Ok thanks to everyone i now have the graphics card and it appears to work a 
> little better as i now get a nice picture of a penguine in the top left
> corner when i boot tha machine

that's good

> .... although i am not sure what type of card i should 
> configure it as under X.... what other ways are there of configuring X other 
> then xf86config as it's rather confusing. Thanks

Yes - edit /etc/X11/XF86Config-4 directly.
You can grab one that works on C3000 with Vis-EG from
	ftp://ftp.parisc-linux.org/kernels/c3000

You will probably have to edit the resolution (eg 1280x1024)
to match what you currently have enabled.

When powering up the computer, hit <TAB> to pick the highest
resolution that works with your monitor/LCD. Then make sure
those are the only values in you XFConfig86-4 file.

grant


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I have tried this but i am still getting the same error message... 

Fatal server error:
AddScreen/ScreenInit Failed for driver 0 

With me having 2 cards in the machine do i need to specify wich one to use ?

if so where can i get the information to do this as i am not having much luck 
finding any documentation. Thanks



Quoting Grant Grundler <grundler@parisc-linux.org>:

> On Tue, Sep 16, 2003 at 06:39:03PM +0100, mmogenius@v8fiesta.co.uk wrote:
> > Ok thanks to everyone i now have the graphics card and it appears to work a
> 
> > little better as i now get a nice picture of a penguine in the top left
> > corner when i boot tha machine
> 
> that's good
> 
> > .... although i am not sure what type of card i should 
> > configure it as under X.... what other ways are there of configuring X
> other 
> > then xf86config as it's rather confusing. Thanks
> 
> Yes - edit /etc/X11/XF86Config-4 directly.
> You can grab one that works on C3000 with Vis-EG from
> 	ftp://ftp.parisc-linux.org/kernels/c3000
> 
> You will probably have to edit the resolution (eg 1280x1024)
> to match what you currently have enabled.
> 
> When powering up the computer, hit <TAB> to pick the highest
> resolution that works with your monitor/LCD. Then make sure
> those are the only values in you XFConfig86-4 file.
> 
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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On Tue, Sep 16, 2003 at 08:03:07PM +0100, mmogenius@v8fiesta.co.uk wrote:
> I have tried this but i am still getting the same error message... 
> 
> Fatal server error:
> AddScreen/ScreenInit Failed for driver 0 


> With me having 2 cards in the machine do i need to specify wich one to use ?

Maybe. I would expect the default to be the console.
Can you remove one of the cards?

> if so where can i get the information to do this as i am not having much luck 
> finding any documentation. Thanks

Try searching tha parisc-linux mailing list for "ScreenInit Failed".
Plenty of hits on this topic.

If none of the above helps, can you post the full Xfree86.log.0?

grant


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Grant Grundler wrote:

>On Tue, Sep 16, 2003 at 08:03:07PM +0100, mmogenius@v8fiesta.co.uk wrote:
>  
>
>>I have tried this but i am still getting the same error message... 
>>
>>Fatal server error:
>>AddScreen/ScreenInit Failed for driver 0 
>>    
>>
>
>
>  
>
>>With me having 2 cards in the machine do i need to specify wich one to use ?
>>    
>>
>
>Maybe. I would expect the default to be the console.
>Can you remove one of the cards?
>  
>
hmm I presume that the first one is the builtin (not removable) gfx 
(which is not supported :( ) and the additional one is supported and 
pluged into a pci slot (so removable but the one usefull)?

Afaik i don't think that it is possible to 'remove' (even logicaly with 
some strap or switch) the builtin gfx.
Anyway, it is possible to change the default monitor to 'graphics1' (as 
afaik here the pdc would recognise the additional gfx) with help of 
COnfiguration submenu at bootprompt. (may be MO cmd would help to get 
more accurate info?)

Or (into linux system) should it be also possible to create a /dev/fb1 
(MAKEDEV iirc) and change with fbset the default fb device to fb1?

>  
>
>>if so where can i get the information to do this as i am not having much luck 
>>finding any documentation. Thanks
>>    
>>
>
>Try searching tha parisc-linux mailing list for "ScreenInit Failed".
>Plenty of hits on this topic.
>
>If none of the above helps, can you post the full Xfree86.log.0?
>
>grant
>
hth,
    Joel




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Subject: Re: [parisc-linux] [PATCH] zalon & ncr53c8xx cleanups
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Matthew Wilcox wrote:

>I don't actually have a zalon machine to test these on, but they seem
>right to me, and compile fine.
>
>Some cleanups for ncr53c8xx & zalon:
>
> - Inline zalon.h into zalon.c
> - Rationalise (a little) ncr53c8xx.c's includes
> - Remove all the version checks
> - Stop using remap_pci_mem & unmap_pci_mem & delete their definitions.
> - Use mb() instead of custom inline asm for MEMORY_BARRIER.
>  
>
Hi Willy,

It works fine on my c110 (just remove serial mux from defconfig); here 
is dmesg:
Linux version 2.6.0-test5-pa6 (root@hpalin) (gcc version 3.3.2 20030908 
(Debian
prerelease)) #1 Wed Sep 17 10:21:19 CEST 2003
FP[0] enabled: Rev 1 Model 11
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 
0000008a 00
00008a
vers  0000000d
CPUID vers 11 rev 13 (0x0000016d)
model 9000/777/C110
Total Memory: 128 Mb
pagetable_init
On node 0 totalpages: 32768
  DMA zone: 32768 pages, LIFO batch:8
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Building zonelist for node : 0
Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 
palo_kernel=
3/vmlinux-2.6.0-test5-pa6
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Memory: 126072k available
Calibrating delay loop... 119.60 BogoMIPS
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
-> /dev
-> /dev/console
-> /root
POSIX conformance testing by UNIFIX
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0x7, 0xb
2. SkyHawk 100/120 FW-SCSI (4) at 0xf3f8c000 [8/12], versions 0x1f, 0x0, 
0x89
3. Raven T' Core BA (11) at 0xffd00000 [8/16], versions 0x32, 0x0, 
0x81,  additi
onal addresses: 0xffd0c000 0xffc00000
4. Raven T' Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x32, 
0x0, 0x7
4,  additional addresses: 0xffd01000 0xffd03000
5. Raven T' Audio (10) at 0xffd04000 [8/16/1], versions 0x32, 0x0, 0x7b
6. Raven T' Lasi Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x32, 
0x0, 0x
8c
7. Raven T' Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x32, 0x0, 0x82
8. Raven T' Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x32, 
0x0, 0x
8a
9. Raven T' Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x32, 
0x0, 0x84
10. Raven T' Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x32, 
0x0, 0x8
4
11. Raven T' Core PC Floppy (10) at 0xffd0a000 [8/16/10], versions 0x32, 
0x0, 0x
83
12. Raven T' Wax BA (11) at 0xffe00000 [8/20], versions 0x1e, 0x0, 
0x8e,  additi
onal addresses: 0xffe03000 0xffe06000
13. Raven T' Wax HIL (10) at 0xffe01000 [8/20/1], versions 0x1e, 0x0, 0x73
14. Raven T' Wax RS-232 (10) at 0xffe02000 [8/20/2], versions 0x1e, 0x0, 
0x8c
15. Raven T' Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x1e, 
0x0, 0x90,
 additional addresses: 0xffc88400 0xf4000000
16. U2-IOA BC GSC+ Port (7) at 0xf3fbf000 [8/63], versions 0x501, 0x1, 
0xc,  add
itional addresses: 0xf3f80000
17. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0x7, 0xb
18. Raven T' GSC Core Graphics (10) at 0xf4000000 [10/16], versions 
0x32, 0x0, 0
x85,  additional addresses: 0xf0069000
19. U2-IOA BC GSC+ Port (7) at 0xf3fff000 [10/63], versions 0x501, 0x1, 0xc
20. Raven 120 T' (0) at 0xfffa0000 [32], versions 0x58e, 0x0, 0x4
21. Memory (1) at 0xfffb1000 [49], versions 0x49, 0x0, 0x9
CPU(s): 1 x PA7200 (PCX-T') at 120.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
Wax at 0xffe00000 found.
Wax EISA Adapter found at 0xfc000000
EISA EEPROM at 0xffc88400
Enumerating EISA bus
EISA: Probing bus 0 at parisc8:20:5
EISA: Mainboard HWPC0E1 detected.
EISA: Detected 0 cards.
SCSI subsystem initialized
drivers/usb/core/usb.c: registered new driver hub
pty: 256 Unix98 ptys configured
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing enabled
Soft power switch enabled, polling @ 0xf0140000.
lp: driver loaded but no devices found
Generic RTC Driver v1.07
ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xffd07000, IRQ 87
eth0: 82596 at 0xffd07000, 00 60 B0 07 1E EA IRQ 87.
82596.c $Revision: 1.29 $
airo:  Probing for PCI adapters
airo:  Finished probing for PCI adapters
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
ncr53c720-0: rev 0xf on pci bus 0 device 0 function 0 irq 34
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3b-20010512
Using anticipatory scheduling io scheduler
  Vendor: SEAGATE   Model: ST34371W          Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34371W          Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
st: Version 20030811, fixed bufsize 32768, s/g segs 256
ncr53c720-0-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 >
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
ncr53c720-0-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdb: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sdb: drive cache: write back
 sdb: unknown partition table
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 5, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 6, lun 0,  type 0
STI GSC/PCI core graphics driver Version 0.9a
STI word mode ROM at f0069000, hpa at f4000000
STI id 2b4ded6d-40a00499, conforms to spec rev. 8.04
STI device: HPA208LC1024
sticon: Initializing STI text console.
Console: switching to colour STI console 128x48
ehci_hcd: block sizes: qh 128 qtd 96 itd 128 sitd 64
ohci-hcd: 2003 Feb 24 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci-hcd: block sizes: ed 64 td 64
mice: PS/2 mouse device common for all mice
Found HIL bus at 0xffe01000, IRQ 126
HIL: no keyboard present.
input: HIL keyboard, ID -1 at 0xffe01000 (irq 126) found and attached
Keyboard initialization sequence failled
gsckbd_leds: timeout
input: PS/2 keyboard port at 0xffd08000 (irq 69) found and attached
input: PS/2 mouse port at 0xffd08100 (irq 69) found and attached
HP SDC: No SDC found.
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :    85.200 MB/sec
   8regs_prefetch:    83.200 MB/sec
   32regs    :    98.800 MB/sec
   32regs_prefetch:    96.400 MB/sec
raid5: using function: 32regs (98.800 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
oprofile: using timer interrupt.
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET: Registered protocol family 1
NET: Registered protocol family 17
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 500k freed
Adding 131928k swap on /dev/sda2.  Priority:-1 extents:1
EXT3 FS on sda5, internal journal
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda6, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda7, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda8, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda9, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
eth0: link ok.

hth,
    joel




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Subject: [parisc-linux] 64-bit kernel builds with gcc-3.4 experimental cross.
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jda,

Any thoughts? This ld was from a multi-arch binutils that had
enable-targets with hppa64-linux.

---
hppa64-linux-ld  -r -o kernel.o sched.o dma.o fork.o exec_domain.o
panic.o printk.o module.o exit.o itimer.o info.o time.o softirq.o
resource.o sysctl.o acct.o capability.o ptrace.o timer.o user.o signal.o
sys.o kmod.o context.o
hppa64-linux-ld: Relocatable linking with relocations from format
elf32-hppa-linux (sched.o) to format elf32-hppa-linux (kernel.o) is not
supported
make[2]: *** [kernel.o] Error 1
make[2]: Leaving directory `/mnt/flaire/src/linux-2.4/kernel'
make[1]: *** [first_rule] Error 2
make[1]: Leaving directory `/mnt/flaire/src/linux-2.4/kernel'
make: *** [_dir_kernel] Error 2
carlos@firin:/mnt/flaire/src/linux-2.4$
---
GNU ld version 2.14.90 20030917

Reading specs from
/mnt/flaire/hppa-toolchain/install/lib/gcc/hppa64-linux/3.4/specs
Configured with: '../gcc-cvs/configure' '--host=hppa-linux
'--prefix=/mnt/flaire/hppa-toolchain/install '--target=hppa64-linux
'--build=hppa-linux
'--with-gnu-ld=/mnt/flaire/hppa-toolchain/install/bin/ld
'--with-gnu-as=/mnt/flaire/hppa-toolchain/install/bin/as
'--enable-languages=c
Thread model: posix
gcc version 3.4 20030916 (experimental)

c.


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> Any thoughts? This ld was from a multi-arch binutils that had
> enable-targets with hppa64-linux.
> 
> ---
> hppa64-linux-ld  -r -o kernel.o sched.o dma.o fork.o exec_domain.o
> panic.o printk.o module.o exit.o itimer.o info.o time.o softirq.o
> resource.o sysctl.o acct.o capability.o ptrace.o timer.o user.o signal.o
> sys.o kmod.o context.o
> hppa64-linux-ld: Relocatable linking with relocations from format
> elf32-hppa-linux (sched.o) to format elf32-hppa-linux (kernel.o) is not
> supported

As far as I know, there is no multi-arch support in ld or as.
There isn't multi-arch support in GCC either.  You need separate
compilers for 32 and 64 bits.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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PmFua3MsPGJyPg0KSmFjayBKb2g8IS0tNGhmMWw4LS0+bnNvbjxicj4NCjxicj4NCjxicj4NCk5v
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On Wed, Sep 17, 2003 at 12:43:18PM -0400, John David Anglin wrote:
> > Any thoughts? This ld was from a multi-arch binutils that had
> > enable-targets with hppa64-linux.
> > 
> > ---
> > hppa64-linux-ld  -r -o kernel.o sched.o dma.o fork.o exec_domain.o
> > panic.o printk.o module.o exit.o itimer.o info.o time.o softirq.o
> > resource.o sysctl.o acct.o capability.o ptrace.o timer.o user.o signal.o
> > sys.o kmod.o context.o
> > hppa64-linux-ld: Relocatable linking with relocations from format
> > elf32-hppa-linux (sched.o) to format elf32-hppa-linux (kernel.o) is not
> > supported
> 
> As far as I know, there is no multi-arch support in ld or as.
> There isn't multi-arch support in GCC either.  You need separate
> compilers for 32 and 64 bits.

Separate compilers yes. Separate linker and assembler no.
I thought I could use '--enable-targets=hppa64-linux' in binutils.

c.


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> Separate compilers yes. Separate linker and assembler no.

There isn't an option in as to select the output object format.
There are somewhat different relocations used in the 32 and 64
bit formats.  So, I don't see how you can use a single assembler
for both.

You may be able to use "-A" with ld but GCC doesn't support this.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: "Barrister Edward Afamefuna" <edward_associates@tiscali.co.uk>
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Subject: [parisc-linux] NEXT OF KIN  (Mr. Adams Djupvik )
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Dear Sir=2C

I am Barrister Edward Afamefuna a Solicitor=2C I know it will come to you as a
surprise because we have not met either physically or through correspondence=2E
I am the Personal Attorney to Mr=2E Adams Djupvik a national of your country=2C
and a contractor here in Nigeria=2E On the 21st of April 2000=2C my client=2C
were involved in a car accident along
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Unfortunately they All lost their lives in the event of the accident=2C after
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Consequently=2C APEX BANK as issued me a notice to provide the next of kin
or have the account confiscated=2E Since I have been unsuccessful in locating
the relatives for over 2 years now=2E

I seek your consent to present you as the next of kin of the deceased=2C so
that the proceeds of this account valued at US$8MD can be paid to you and
then you and me can share the money=2E 50% to me and 40% to you=2C while 10%
should be for expenses or tax as your government may require=2E

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1=2E YOUR FULL NAME
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3=2E PRIVATE TELEPHONE AND FAX NUMBER=2E

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Please direct your reply through this Email Box immediately you receive
this proposal for more explanation on the inheritance=2E

Yours Faithfully=2C

Barrister Edward Afamefuna =28Esq=2E=29=2E 





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> > 
> > Separate compilers yes. Separate linker and assembler no.
> > I thought I could use '--enable-targets=hppa64-linux' in binutils.
> 
> I think that only works for some parts of binutils -- specifically not ld.
> 

So it seems. Fiddle sticks. Two builds it is then :)

c.


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On Wed, Sep 17, 2003 at 06:54:07PM -0400, Carlos O'Donell wrote:
> On Wed, Sep 17, 2003 at 12:43:18PM -0400, John David Anglin wrote:
> > > hppa64-linux-ld: Relocatable linking with relocations from format
> > > elf32-hppa-linux (sched.o) to format elf32-hppa-linux (kernel.o) is not
> > > supported
> > 
> > As far as I know, there is no multi-arch support in ld or as.
> > There isn't multi-arch support in GCC either.  You need separate
> > compilers for 32 and 64 bits.
> 
> Separate compilers yes. Separate linker and assembler no.
> I thought I could use '--enable-targets=hppa64-linux' in binutils.

I think that only works for some parts of binutils -- specifically not ld.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Jacek Chmielewski <jchmiel@kti.ae.poznan.pl>
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Subject: [parisc-linux] debian installation problem - ERROR: Read from boot device failed
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I want to install Debian on my HP 9000 J200 box and I encountered a problem
with booting the installation procedure:

Selected kernel: /vmlinux32 from partition 0
Selected ramdisk: /ramdiski from partition 0
ELF32 executable
Entry 00100098 first 00100000 n 6
Segment 0 load 00100000 size 2196688 mediaptr 0x1000
Segment 1 load 0031a000 size 467792 mediaptr 0x21a000
Segment 2 load 00390000 size 255656 mediaptr 0x28d000
Segment 3 load 003d0000 size 8192 mediaptr 0x2cc000
Segment 4 load 003d8000 size 32768 mediaptr 0x2ce000
Segment 5 load 00402048 size 110832 mediaptr 0x2d6048

ERROR: Read from boot device failed (status = -13).
byteio_read: seekread() returned -1 expected 2195456
ERROR: segment 0 read() failed
Fatal error loading kernel executableERROR: failed to load kernel 

I tried the Debian binary-1 CD and netinstall CD. Both with almost same
results ('status = -7' for Debian CD, and 'status = -13' for netinstall
CD).

What could be wrong? Do you know any possible source of this problem?

Best regards
  Jacek Chmielewski




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Hello,

is it dangerous to make an update of libc from 2.2.5 to 2.3.x?
At the moment I have only remote access to the affected host.


Best regards, Tilo


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On Thu, 2003-09-18 11:31:57 +0200, Tilo Riemer <t.riemer@visoel.de>
wrote in message <20030918113157.000037fb.t.riemer@visoel.de>:
> is it dangerous to make an update of libc from 2.2.5 to 2.3.x?
> At the moment I have only remote access to the affected host.

I've just dist-upgrade'd all my machines. Libc still works (including a
B132L+ and a 712), but you should be aware of module-init-tools if
you're already using 2.6.x.

# touch /etc/modprobe.d/arch/generic=20

=2E..helps you over a bug in the .deb ...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
   ret =3D do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TC=
PA));

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Subject: [parisc-linux] Opportunity: Anyone got any 4GB SCSI drives
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Opportunity: Anyone got any 4GB SCSI drives

I am searching for some 4GB disk drives commonly found in the HP B132L,
B160L, & B180L workstation. The part number is ST34572N 4GB SCSI 50 pin
drives. They could be found in other types of workstations, I only know
the HP stuff. I need to buy about 100 of these things. If you have any
surplus or extra drives that you might want to sell, please feel free to
call or email as I need to purchase these ASAP.

Thanks
Jesse Doughery
Cypress Technology Inc
727-557-0911
jesse@cypress-tech.com



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On Thu, Sep 18, 2003 at 11:31:57AM +0200, Tilo Riemer wrote:
> Hello,
> 
> is it dangerous to make an update of libc from 2.2.5 to 2.3.x?
> At the moment I have only remote access to the affected host.

There is no 2.3.x glibc available for debian, it's currently being
fixed. I apologize for the delay, it's more difficult than usual.

c.


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On Thu, Sep 18, 2003 at 11:16:17AM +0200, Jacek Chmielewski wrote:
> I want to install Debian on my HP 9000 J200 box and I encountered a problem
> with booting the installation procedure:
> 
> Selected kernel: /vmlinux32 from partition 0
> Selected ramdisk: /ramdiski from partition 0
> ELF32 executable
> Entry 00100098 first 00100000 n 6
> Segment 0 load 00100000 size 2196688 mediaptr 0x1000
> Segment 1 load 0031a000 size 467792 mediaptr 0x21a000
> Segment 2 load 00390000 size 255656 mediaptr 0x28d000
> Segment 3 load 003d0000 size 8192 mediaptr 0x2cc000
> Segment 4 load 003d8000 size 32768 mediaptr 0x2ce000
> Segment 5 load 00402048 size 110832 mediaptr 0x2d6048
> 
> ERROR: Read from boot device failed (status = -13).

if palo is reporting -13 as the IODC return code, that means:
-13     Protocol error
        A protocol violation was encountered on the module-device
	connection while transferring data to or from the device.
	CONDITIONAL. Must be used if the implementation can detect
	             a protocol error.

This would suggest some device is misconfigured.

> byteio_read: seekread() returned -1 expected 2195456
> ERROR: segment 0 read() failed
> Fatal error loading kernel executableERROR: failed to load kernel 
> 
> I tried the Debian binary-1 CD and netinstall CD. Both with almost same
> results ('status = -7' for Debian CD, and 'status = -13' for netinstall
> CD).

-7	Nonexistent device
	The device address specified by ID_addr is a valid device address.
	However, it points to either a device that is not installed or a
	device that does not respond. Returned only by options ARG1=0
	through ARG1=4.
	CONDITIONAL. Must be used if nonexistent devices can be identified.

IIRC, io_ars.pdf describes these errors...I found them in a different document.

> What could be wrong? Do you know any possible source of this problem?


Misconfigured or flakey device. If you can setup a DHCP server
and boot the netinstall lifimage over the LAN, that might work better.

grant


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From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
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Subject: Re: [parisc-linux] update of libc?
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On Thu, 2003-09-18 12:02:49 -0400, Carlos O'Donell <carlos@baldric.uwo.ca>
wrote in message <20030918160249.GC30890@systemhalted>:
> On Thu, Sep 18, 2003 at 11:31:57AM +0200, Tilo Riemer wrote:
> > is it dangerous to make an update of libc from 2.2.5 to 2.3.x?
> > At the moment I have only remote access to the affected host.
>=20
> There is no 2.3.x glibc available for debian, it's currently being
> fixed. I apologize for the delay, it's more difficult than usual.

No?

b132l-1:~# dpkg -l libc6
Desired=3DUnknown/Install/Remove/Purge/Hold
| Status=3DNot/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=3D(none)/Hold/Reinst-required/X=3Dboth-problems (Status,Err: upperc=
ase=3Dbad)
||/ Name           Version        Description
+++-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
ii  libc6          2.3.1-17.0.3   GNU C Library: Shared libraries and Timez=
one

For me, that one works and seems to be 2.3.x... However, what are
current libc's problems?

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
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k!
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] update of libc?
Date: Thu, 18 Sep 2003 13:49:06 -0400
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On Thu, Sep 18, 2003 at 07:31:33PM +0200, Jan-Benedict Glaw wrote:
> On Thu, 2003-09-18 12:02:49 -0400, Carlos O'Donell <carlos@baldric.uwo.ca>
> wrote in message <20030918160249.GC30890@systemhalted>:
> > On Thu, Sep 18, 2003 at 11:31:57AM +0200, Tilo Riemer wrote:
> > > is it dangerous to make an update of libc from 2.2.5 to 2.3.x?
> > > At the moment I have only remote access to the affected host.
> > 
> > There is no 2.3.x glibc available for debian, it's currently being
> > fixed. I apologize for the delay, it's more difficult than usual.
> 
> No?

Sorry, 2.3.2, my brain isn't responding to the usual shock treatment.

c.


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Hi
	I am developing a scsi disk exerciser and I am blocked on a strange
problem with the raw interface. When I use the block device /dev/sda
directly I am able to read and write from the disk properly. But when I use
the raw interface I get garbage. For instance please look at the output
below. I am reading the 1st sector of the disk, which is the boot sector,
When I use the block device /dev/sda I get my expected output, whereas when
I use the raw interface I get garbage. Can any one explain? The machine I am
using is an L Class. 

I have attached the start up (boot up) screen dump at the end of the mail

Kernel details:
oak:~# uname -a
Linux oak 2.4.22-pa3 #1 Thu Sep 18 23:19:58 IST 2003 parisc64 unknown


oak:/home/sranjith# ls -l /dev/sda
brw-rw----    1 root     disk       8,   0 Jun  7  2002 /dev/sda

oak:/home/sranjith# ls -l /dev/sdb
brw-rw----    1 root     disk       8,  16 Jun  7  2002 /dev/sdb

oak:/home/sranjith# ls -l /dev/raw/    
total 0
crw-r--r--    1 root     root     162,   4 Sep 12 00:32 raw4
crw-r--r--    1 root     root     162,   2 Aug  7 00:35 rawsda
crw-r--r--    1 root     root     162,   1 Jul 31 19:33 rawsdb

I am binding the raw devices to the block devices

oak:/home/sranjith# raw /dev/raw/rawsdb /dev/sdb
/dev/raw/raw1:  bound to major 8, minor 16
oak:/home/sranjith# raw /dev/raw/rawsda /dev/sda
/dev/raw/raw2:  bound to major 8, minor 0

oak:/home/sranjith# raw -qa
/dev/raw/raw1:  bound to major 8, minor 16
/dev/raw/raw2:  bound to major 8, minor 0

I am reading the 1st sector of /dev/sda from which I booted

oak:/home/sranjith# dd if=/dev/sda of=o_sda bs=512 count=8
8+0 records in
8+0 records out
oak:/home/sranjith# xxd o_sda |more
0000000: 8000 5041 4c4f 0003 0000 0000 0000 0000  ..PALO..........
0000010: 0000 0000 0000 0000 322f 766d 6c69 6e75  ........2/vmlinu
0000020: 7820 726f 6f74 3d2f 6465 762f 7364 6133  x root=/dev/sda3
0000030: 2048 4f4d 453d 2f00 696e 6974 3d2f 6269   HOME=/.init=/bi
0000040: 6e2f 6261 7368 0037 3a2f 2069 703d 6468  n/bash.7:/ ip=dh
0000050: 6370 2048 4f4d 453d 2f00 0000 0000 0000  cp HOME=/.......
0000060: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000070: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000080: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000090: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000e0: 0000 0000 0000 0000 0004 4000 0050 7fd9  ..........@..P..
00000f0: 0000 4000 0000 7800 0000 0000 0000 0000  ..@...x.........
0000100: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000110: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000120: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000130: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000140: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000150: 0000 0000 0000 0000 0000 0000 0000 0000  ................
--More--

I am getting a valid output

Now I use the raw interface to read the same sector and I get garbage

oak:/home/sranjith# dd if=/dev/raw/rawsda of=o_sda bs=512 count=8
8+0 records in
8+0 records out
oak:/home/sranjith# xxd o_sda |more
0000000: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000010: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000020: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000030: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000040: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000050: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000060: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000070: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000080: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000090: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000100: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000110: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000120: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000130: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000140: 0000 0000 0000 0000 0000 0000 0000 0000  ................
0000150: 0000 0000 0000 0000 0000 0000 0000 0000  ................
--More--

I get Garbage	



Boot up screen dump
************ EARLY BOOT VFP *************
End of early boot detected
*****************************************

Firmware Version  41.46

Duplex Console IO Dependent Code (IODC) revision 1

----------------------------------------------------------------------------
--
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
----------------------------------------------------------------------------
--

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst
Data
  ---------  --------   ---------------------  -----------------
------------
      0      750  MHz   Active                 Functional         750 KB 1.5
MB
      2      750  MHz   Idle                   Functional         750 KB 1.5
MB

  Central Bus Speed (in MHz)  :        133  
  Available Memory            :   16777216  KB
  Good Memory Required        :      86948  KB

   Primary boot path:    0/0/2/0.2           
   Alternate boot path:  0/0/1/1.2           
   Console path:         0/0/4/1.0           
   Keyboard path:        0/0/4/0.0           

 WARNING:  The non-destructive test bit was set, so memory was not tested 
            destructively.  Information only, no action required. 


Processor is booting from first available device.

To discontinue, press any key within 10 seconds.
Proceeding...

Trying Primary Boot Path
------------------------
Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002

Partition Start(MB) End(MB) Id Type
1               1      95   f0 Palo
2              96     286   83 ext2
3             287    5054   83 ext2

PALO(F0) partition contains:
    0/vmlinux64 5275609 bytes @ 0x44000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=/dev/sda3 HOME=/ console=ttyS0 TERM=vt102
palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 2872448 mediaptr 0x1000
Segment 1 load 003be000 size 1028616 mediaptr 0x2bf000
Segment 2 load 004bc000 size 376832 mediaptr 0x3bb000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org


********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system
down.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
sym53c8xx: 53c875 detected 
sym53c8xx: at PCI bus 0, device 1, function 0
sym53c8xx: setting PCI_COMMAND_INVALIDATE (fix-up)
sym53c8xx: 53c896 detected 
sym53c8xx: at PCI bus 0, device 1, function 1
sym53c8xx: setting PCI_COMMAND_INVALIDATE (fix-up)
sym53c8xx: 53c896 detected 
sym53c875-0: rev 0x14 on pci bus 0 device 2 function 0 irq 130
sym53c875-0: ID 7, Fast-20, Parity Checking
sym53c875-1: rev 0x14 on pci bus 0 device 2 function 1 irq 131
sym53c875-1: ID 7, Fast-20, Parity Checking
sym53c875-2: rev 0x14 on pci bus 64 device 0 function 0 irq 512
sym53c875-2: ID 7, Fast-20, Parity Checking
sym53c875-3: rev 0x14 on pci bus 64 device 0 function 1 irq 513
sym53c875-3: ID 7, Fast-20, Parity Checking
sym53c896-4: rev 0x7 on pci bus 0 device 1 function 0 irq 129
sym53c896-4: ID 7, Fast-20, Parity Checking
sym53c896-4: handling phase mismatch from SCRIPTS.
sym53c896-5: rev 0x7 on pci bus 0 device 1 function 1 irq 130
sym53c896-5: ID 7, Fast-20, Parity Checking
sym53c896-5: handling phase mismatch from SCRIPTS.
scsi0 : sym53c8xx-1.7.3c-20010512
scsi1 : sym53c8xx-1.7.3c-20010512
scsi2 : sym53c8xx-1.7.3c-20010512
scsi3 : sym53c8xx-1.7.3c-20010512
scsi4 : sym53c8xx-1.7.3c-20010512
scsi5 : sym53c8xx-1.7.3c-20010512
blk: queue 000000008f9a3428, I/O limit 4095Mb (mask 0xffffffff)
  Vendor: HP 36.4G  Model: MAN3367MC         Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
blk: queue 000000008f9a3628, I/O limit 4095Mb (mask 0xffffffff)
  Vendor: HP        Model: DVD-ROM 305       Rev: 1.01
  Type:   CD-ROM                             ANSI SCSI revision: 02
blk: queue 000000008f9a3828, I/O limit 4095Mb (mask 0xffffffff)
  Vendor: HP 36.4G  Model: MAN3367MC         Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
blk: queue 000000008f9a3a28, I/O limit 4095Mb (mask 0xffffffff)
Attached scsi disk sda at scsi0, channel 0, id 2, lun 0
Attached scsi disk sdb at scsi5, channel 0, id 2, lun 0
sym53c875-0-<2,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 16)
SCSI device sda: 71132960 512-byte hdwr sectors (36420 MB)
 sda: sda1 sda2 sda3
sym53c896-5-<2,*>: FAST-20 WIDE SCSI 40.0 MB/s (50.0 ns, offset 31)
SCSI device sdb: 71132960 512-byte hdwr sectors (36420 MB)
 sdb: unknown partition table
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0
sym53c875-1-<2,*>: FAST-20 SCSI 20.0 MB/s (50.0 ns, offset 16)
sr0: scsi3-mmc drive: 16x/40x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12
STI GSC/PCI graphics driver version 0.9
BUG: Skipping previously registered driver: sti (native)
mice: PS/2 mouse device common for all mice
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :  3434.400 MB/sec
   8regs_prefetch:  2515.600 MB/sec
   32regs    :  2800.000 MB/sec
   32regs_prefetch:  2640.000 MB/sec
raid5: using function: 8regs (3434.400 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 16384 buckets, 128Kbytes
TCP: Hash tables configured (established 262144 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 316k freed
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system
down.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
System Clock set. System local time is now Thu Sep 18 18:46:58 UTC 2003.
Calculating module dependencies... depmod: Can't open
/lib/modules/2.4.22-pa3/modules.dep for writing
done.
Loading modules: 
modprobe: Can't open dependencies file /lib/modules/2.4.22-pa3/modules.dep
(No such file or directory)
Checking all file systems...
fsck 1.27 (8-Mar-2002)
/dev/sda2: clean, 20/48960 files, 33836/195584 blocks
Setting kernel variables.
Mounting local filesystems...
/dev/sda2 on /boot type ext2 (rw)
Running 0dns-down to make sure resolv.conf is ok...done.
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces: done.
Starting portmap daemon: portmap.
Starting portmapper... Mounting remote filesystems...

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Fri Sep 19 00:17:02 IST 2003

Cleaning: /tmp /var/lock eth0: Setting full-duplex based on MII#1 link
partner capability of 41e1.
/var/run.
Initializing random number generator... done.
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting NFS common utilities: statd.
Starting internet superserver: inetd.
Exporting directories for NFS kernel daemon...done.
Starting NFS kernel daemon: nfsd mountd.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.

Debian GNU/Linux 3.0 oak ttyS0

oak login: 

with warm regards,
Ranjith Sudarsanan

--------------------------------------
Ranjith Sudarsanan
Rage Team
30CA, Cunningham Road
Bangalore
--------------------------------------
"When the head bows, it meets the heart and that head which has met the
heart gets the crown!!! - Sri Sri"


------_=_NextPart_001_01C37E18.06CAF4E8
Content-Type: text/html
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2655.35">
<TITLE>Problems with raw interface.</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2 FACE=3D"Arial">Hi</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=3D2 =
FACE=3D"Arial">I am developing a scsi disk exerciser and I am blocked =
on a strange problem with the raw interface. When I use the block =
device /dev/sda directly I am able to read and write from the disk =
properly. But when I use the raw interface I get garbage. For instance =
please look at the output below. I am reading the 1st sector of the =
disk, which is the boot sector, When I use the block device /dev/sda I =
get my expected output, whereas when I use the raw interface I get =
garbage. Can any one explain? The machine I am using is an L Class. =
</FONT></P>

<P><FONT SIZE=3D2 FACE=3D"Arial">I have attached the start up (boot up) =
screen dump at the end of the mail</FONT>
</P>

<P><B><FONT SIZE=3D2 FACE=3D"Arial">Kernel details:</FONT></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">oak:~# uname -a</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Linux oak 2.4.22-pa3 #1 Thu Sep 18 =
23:19:58 IST 2003 parisc64 unknown</FONT>
</P>
<BR>

<P><FONT SIZE=3D2 FACE=3D"Arial">oak:/home/sranjith#</FONT><B> <FONT =
SIZE=3D2 FACE=3D"Arial">ls -l /dev/sda</FONT></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">brw-rw----&nbsp;&nbsp;&nbsp; 1 =
root&nbsp;&nbsp;&nbsp;&nbsp; disk&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
8,&nbsp;&nbsp; 0 Jun&nbsp; 7&nbsp; 2002 /dev/sda</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">oak:/home/sranjith#</FONT><B> <FONT =
SIZE=3D2 FACE=3D"Arial">ls -l /dev/sdb</FONT></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">brw-rw----&nbsp;&nbsp;&nbsp; 1 =
root&nbsp;&nbsp;&nbsp;&nbsp; disk&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
8,&nbsp; 16 Jun&nbsp; 7&nbsp; 2002 /dev/sdb</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">oak:/home/sranjith#</FONT><B> <FONT =
SIZE=3D2 FACE=3D"Arial">ls -l /dev/raw/&nbsp;&nbsp;&nbsp; </FONT></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">total 0</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">crw-r--r--&nbsp;&nbsp;&nbsp; 1 =
root&nbsp;&nbsp;&nbsp;&nbsp; root&nbsp;&nbsp;&nbsp;&nbsp; =
162,&nbsp;&nbsp; 4 Sep 12 00:32 raw4</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">crw-r--r--&nbsp;&nbsp;&nbsp; 1 =
root&nbsp;&nbsp;&nbsp;&nbsp; root&nbsp;&nbsp;&nbsp;&nbsp; =
162,&nbsp;&nbsp; 2 Aug&nbsp; 7 00:35 rawsda</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">crw-r--r--&nbsp;&nbsp;&nbsp; 1 =
root&nbsp;&nbsp;&nbsp;&nbsp; root&nbsp;&nbsp;&nbsp;&nbsp; =
162,&nbsp;&nbsp; 1 Jul 31 19:33 rawsdb</FONT>
</P>

<P><B><FONT COLOR=3D"#FF00FF" SIZE=3D2 FACE=3D"Arial">I am binding the =
raw devices to the block devices</FONT></B>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">oak:/home/sranjith#</FONT><B> <FONT =
SIZE=3D2 FACE=3D"Arial">raw /dev/raw/rawsdb /dev/sdb</FONT></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">/dev/raw/raw1:&nbsp; bound to major =
8, minor 16</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">oak:/home/sranjith# raw =
/dev/raw/rawsda /dev/sda</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">/dev/raw/raw2:&nbsp; bound to major =
8, minor 0</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">oak:/home/sranjith#</FONT><B> <FONT =
SIZE=3D2 FACE=3D"Arial">raw -qa</FONT></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">/dev/raw/raw1:&nbsp; bound to major =
8, minor 16</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">/dev/raw/raw2:&nbsp; bound to major =
8, minor 0</FONT>
</P>

<P><B><FONT COLOR=3D"#FF00FF" SIZE=3D2 FACE=3D"Arial">I am reading the =
1st sector of /dev/sda from which I booted</FONT></B>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">oak:/home/sranjith#</FONT><B> <FONT =
SIZE=3D2 FACE=3D"Arial">dd if=3D/dev/sda of=3Do_sda bs=3D512 =
count=3D8</FONT></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">8+0 records in</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">8+0 records out</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">oak:/home/sranjith#</FONT><B> <FONT =
SIZE=3D2 FACE=3D"Arial">xxd o_sda |more</FONT></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000000: 8000 5041 4c4f 0003 0000 =
0000 0000 0000&nbsp; ..PALO..........</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000010: 0000 0000 0000 0000 322f =
766d 6c69 6e75&nbsp; ........2/vmlinu</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000020: 7820 726f 6f74 3d2f 6465 =
762f 7364 6133&nbsp; x root=3D/dev/sda3</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000030: 2048 4f4d 453d 2f00 696e =
6974 3d2f 6269&nbsp;&nbsp; HOME=3D/.init=3D/bi</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000040: 6e2f 6261 7368 0037 3a2f =
2069 703d 6468&nbsp; n/bash.7:/ ip=3Ddh</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000050: 6370 2048 4f4d 453d 2f00 =
0000 0000 0000&nbsp; cp HOME=3D/.......</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000060: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000070: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000080: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000090: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">00000a0: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">00000b0: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">00000c0: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">00000d0: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">00000e0: 0000 0000 0000 0000 0004 =
4000 0050 7fd9&nbsp; ..........@..P..</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">00000f0: 0000 4000 0000 7800 0000 =
0000 0000 0000&nbsp; ..@...x.........</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000100: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000110: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000120: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000130: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000140: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000150: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">--More--</FONT>
</P>

<P><B><FONT COLOR=3D"#FF00FF" SIZE=3D2 FACE=3D"Arial">I am getting a =
valid output</FONT></B>
</P>

<P><B><FONT COLOR=3D"#FF00FF" SIZE=3D2 FACE=3D"Arial">Now I use the raw =
interface to read the same sector and I get garbage</FONT></B>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">oak:/home/sranjith#</FONT><B> <FONT =
SIZE=3D2 FACE=3D"Arial">dd if=3D/dev/raw/rawsda of=3Do_sda bs=3D512 =
count=3D8</FONT></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">8+0 records in</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">8+0 records out</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">oak:/home/sranjith#</FONT><B> <FONT =
SIZE=3D2 FACE=3D"Arial">xxd o_sda |more</FONT></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000000: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000010: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000020: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000030: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000040: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000050: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000060: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000070: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000080: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000090: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">00000a0: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">00000b0: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">00000c0: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">00000d0: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">00000e0: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">00000f0: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000100: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000110: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000120: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000130: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000140: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">0000150: 0000 0000 0000 0000 0000 =
0000 0000 0000&nbsp; ................</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">--More--</FONT>
</P>

<P><B><FONT COLOR=3D"#FF00FF" SIZE=3D2 FACE=3D"Arial">I get =
Garbage&nbsp;&nbsp; </FONT></B>
</P>
<BR>
<BR>

<P><B><FONT SIZE=3D2 FACE=3D"Arial">Boot up screen dump</FONT></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">************ EARLY BOOT VFP =
*************</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">End of early boot detected</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">*****************************************</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Firmware Version&nbsp; 41.46</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Duplex Console IO Dependent Code =
(IODC) revision 1</FONT>
</P>

<P><FONT SIZE=3D2 =
FACE=3D"Arial">---------------------------------------------------------=
---------------------</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp; (c) Copyright 1995-2000, =
Hewlett-Packard Company, All rights reserved</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">---------------------------------------------------------=
---------------------</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; Processor&nbsp;&nbsp; =
Speed&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
State&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
CoProcessor State&nbsp; Cache Size</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; =
Number&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; =
State&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; Inst&nbsp;&nbsp;&nbsp; Data</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; ---------&nbsp; =
--------&nbsp;&nbsp; ---------------------&nbsp; =
-----------------&nbsp; ------------</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 750&nbsp; MHz&nbsp;&nbsp; =
Active&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
Functional&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 750 KB 1.5 =
MB</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 750&nbsp; MHz&nbsp;&nbsp; =
Idle&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
Functional&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 750 KB 1.5 =
MB</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; Central Bus Speed (in =
MHz)&nbsp; :&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 133&nbsp; =
</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; Available Memory&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; :&nbsp;&nbsp; =
16777216&nbsp; KB</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; Good Memory =
Required&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 86948&nbsp; KB</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp; Primary boot =
path:&nbsp;&nbsp;&nbsp; =
0/0/2/0.2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp; Alternate boot =
path:&nbsp; =
0/0/1/1.2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp; Console =
path:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
0/0/4/1.0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp; Keyboard =
path:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
0/0/4/0.0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;WARNING:&nbsp; The =
non-destructive test bit was set, so memory was not tested </FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; destructively.&nbsp; Information only, no action required. =
</FONT>
</P>
<BR>

<P><FONT SIZE=3D2 FACE=3D"Arial">Processor is booting from first =
available device.</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">To discontinue, press any key within =
10 seconds.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Proceeding...</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Trying Primary Boot Path</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">------------------------</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Booting... </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Boot IO Dependent Code (IODC) =
revision 1</FONT>
</P>
<BR>

<P><FONT SIZE=3D2 FACE=3D"Arial">HARD Booted.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">palo ipl 1.0 root@palinux Mon =
Apr&nbsp; 1 10:02:53 MST 2002</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Partition Start(MB) End(MB) Id =
Type</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
95&nbsp;&nbsp; f0 Palo</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp; 96&nbsp;&nbsp;&nbsp;&nbsp; 286&nbsp;&nbsp; 83 =
ext2</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp; 287&nbsp;&nbsp;&nbsp; 5054&nbsp;&nbsp; 83 ext2</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">PALO(F0) partition contains:</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp;&nbsp; 0/vmlinux64 =
5275609 bytes @ 0x44000</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Information: No console specified on =
kernel command line. This is normal.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">PALO will choose the console =
currently used by firmware (serial).</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Command line for kernel: =
'root=3D/dev/sda3 HOME=3D/ console=3DttyS0 TERM=3Dvt102 =
palo_kernel=3D2/vmlinux'</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Selected kernel: /vmlinux from =
partition 2</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">ELF64 executable</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Entry 00100000 first 00100000 n =
3</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Segment 0 load 00100000 size 2872448 =
mediaptr 0x1000</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Segment 1 load 003be000 size 1028616 =
mediaptr 0x2bf000</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Segment 2 load 004bc000 size 376832 =
mediaptr 0x3bb000</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Branching to kernel entry point =
0x00100000.&nbsp; If this is the last</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">message you see, you may need to =
switch your console.&nbsp; This is</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">a common symptom -- search the FAQ =
and mailing list at parisc-linux.org</FONT>
</P>
<BR>

<P><FONT SIZE=3D2 FACE=3D"Arial">********** VIRTUAL FRONT PANEL =
**********</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">System Boot detected</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">*****************************************</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">LEDs:&nbsp; =
RUN&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ATTENTION&nbsp;&nbsp;&nbsp;&nbsp; =
FAULT&nbsp;&nbsp;&nbsp;&nbsp; REMOTE&nbsp;&nbsp;&nbsp;&nbsp; =
POWER</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
ON&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
FLASH&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
OFF&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
ON&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ON</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">LED State: There was a system =
interruption that did not take the system down.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Check Chassis and Console Logs for =
error messages.</FONT>
</P>

<P><FONT SIZE=3D2 =
FACE=3D"Arial">processor&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; system =
initialization&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1C00</FONT>
</P>

<P><FONT SIZE=3D2 =
FACE=3D"Arial">*****************************************</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">************ EARLY BOOT VFP =
*************</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">End of early boot detected</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">*****************************************</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c8xx: 53c875 detected </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c8xx: at PCI bus 0, device 1, =
function 0</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c8xx: setting =
PCI_COMMAND_INVALIDATE (fix-up)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c8xx: 53c896 detected </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c8xx: at PCI bus 0, device 1, =
function 1</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c8xx: setting =
PCI_COMMAND_INVALIDATE (fix-up)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c8xx: 53c896 detected </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c875-0: rev 0x14 on pci bus 0 =
device 2 function 0 irq 130</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c875-0: ID 7, Fast-20, Parity =
Checking</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c875-1: rev 0x14 on pci bus 0 =
device 2 function 1 irq 131</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c875-1: ID 7, Fast-20, Parity =
Checking</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c875-2: rev 0x14 on pci bus 64 =
device 0 function 0 irq 512</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c875-2: ID 7, Fast-20, Parity =
Checking</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c875-3: rev 0x14 on pci bus 64 =
device 0 function 1 irq 513</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c875-3: ID 7, Fast-20, Parity =
Checking</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c896-4: rev 0x7 on pci bus 0 =
device 1 function 0 irq 129</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c896-4: ID 7, Fast-20, Parity =
Checking</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c896-4: handling phase mismatch =
from SCRIPTS.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c896-5: rev 0x7 on pci bus 0 =
device 1 function 1 irq 130</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c896-5: ID 7, Fast-20, Parity =
Checking</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c896-5: handling phase mismatch =
from SCRIPTS.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">scsi0 : =
sym53c8xx-1.7.3c-20010512</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">scsi1 : =
sym53c8xx-1.7.3c-20010512</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">scsi2 : =
sym53c8xx-1.7.3c-20010512</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">scsi3 : =
sym53c8xx-1.7.3c-20010512</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">scsi4 : =
sym53c8xx-1.7.3c-20010512</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">scsi5 : =
sym53c8xx-1.7.3c-20010512</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">blk: queue 000000008f9a3428, I/O =
limit 4095Mb (mask 0xffffffff)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; Vendor: HP 36.4G&nbsp; Model: =
MAN3367MC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Rev: =
HP04</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; Type:&nbsp;&nbsp; =
Direct-Access&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
ANSI SCSI revision: 02</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">blk: queue 000000008f9a3628, I/O =
limit 4095Mb (mask 0xffffffff)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; Vendor: HP&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp; Model: DVD-ROM =
305&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Rev: 1.01</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; Type:&nbsp;&nbsp; =
CD-ROM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ANSI SCSI revision: 02</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">blk: queue 000000008f9a3828, I/O =
limit 4095Mb (mask 0xffffffff)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; Vendor: HP 36.4G&nbsp; Model: =
MAN3367MC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Rev: =
HP04</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp; Type:&nbsp;&nbsp; =
Direct-Access&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
ANSI SCSI revision: 02</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">blk: queue 000000008f9a3a28, I/O =
limit 4095Mb (mask 0xffffffff)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Attached scsi disk sda at scsi0, =
channel 0, id 2, lun 0</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Attached scsi disk sdb at scsi5, =
channel 0, id 2, lun 0</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c875-0-&lt;2,*&gt;: FAST-20 WIDE =
SCSI 40.0 MB/s (50.0 ns, offset 16)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">SCSI device sda: 71132960 512-byte =
hdwr sectors (36420 MB)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;sda: sda1 sda2 sda3</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c896-5-&lt;2,*&gt;: FAST-20 WIDE =
SCSI 40.0 MB/s (50.0 ns, offset 31)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">SCSI device sdb: 71132960 512-byte =
hdwr sectors (36420 MB)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;sdb: unknown partition =
table</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Attached scsi CD-ROM sr0 at scsi1, =
channel 0, id 2, lun 0</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sym53c875-1-&lt;2,*&gt;: FAST-20 SCSI =
20.0 MB/s (50.0 ns, offset 16)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">sr0: scsi3-mmc drive: 16x/40x cd/rw =
xa/form2 cdda tray</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Uniform CD-ROM driver Revision: =
3.12</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">STI GSC/PCI graphics driver version =
0.9</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">BUG: Skipping previously registered =
driver: sti (native)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">mice: PS/2 mouse device common for =
all mice</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">HP SDC: No SDC found.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">HP SDC MLC: Registering the System =
Domain Controller's HIL MLC.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">HP SDC MLC: Request for raw HIL ISR =
hook denied</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">md: linear personality registered as =
nr 1</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">md: raid0 personality registered as =
nr 2</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">md: raid1 personality registered as =
nr 3</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">md: raid5 personality registered as =
nr 4</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">raid5: measuring checksumming =
speed</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp; =
8regs&nbsp;&nbsp;&nbsp;&nbsp; :&nbsp; 3434.400 MB/sec</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp; 8regs_prefetch:&nbsp; =
2515.600 MB/sec</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp; 32regs&nbsp;&nbsp;&nbsp; =
:&nbsp; 2800.000 MB/sec</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp; 32regs_prefetch:&nbsp; =
2640.000 MB/sec</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">raid5: using function: 8regs =
(3434.400 MB/sec)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">md: md driver 0.90.0 =
MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">md: Autodetecting RAID arrays.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">md: autorun ...</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">md: ... autorun DONE.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">NET4: Linux TCP/IP 1.0 for =
NET4.0</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">IP Protocols: ICMP, UDP, TCP, =
IGMP</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">IP: routing cache hash table of 16384 =
buckets, 128Kbytes</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">TCP: Hash tables configured =
(established 262144 bind 65536)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">NET4: Unix domain sockets 1.0/SMP for =
Linux NET4.0.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">VFS: Mounted root (ext2 filesystem) =
readonly.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Freeing unused kernel memory: 316k =
freed</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">********** VIRTUAL FRONT PANEL =
**********</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">System Boot detected</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">*****************************************</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">LEDs:&nbsp; =
RUN&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ATTENTION&nbsp;&nbsp;&nbsp;&nbsp; =
FAULT&nbsp;&nbsp;&nbsp;&nbsp; REMOTE&nbsp;&nbsp;&nbsp;&nbsp; =
POWER</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
ON&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
FLASH&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
OFF&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
ON&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ON</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">LED State: There was a system =
interruption that did not take the system down.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Check Chassis and Console Logs for =
error messages.</FONT>
</P>

<P><FONT SIZE=3D2 =
FACE=3D"Arial">processor&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; system =
initialization&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1C00</FONT>
</P>

<P><FONT SIZE=3D2 =
FACE=3D"Arial">*****************************************</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">************ EARLY BOOT VFP =
*************</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">End of early boot detected</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">*****************************************</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">System Clock set. System local time =
is now Thu Sep 18 18:46:58 UTC 2003.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Calculating module dependencies... =
depmod: Can't open /lib/modules/2.4.22-pa3/modules.dep for =
writing</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">done.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Loading modules: </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">modprobe: Can't open dependencies =
file /lib/modules/2.4.22-pa3/modules.dep (No such file or =
directory)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Checking all file systems...</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">fsck 1.27 (8-Mar-2002)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">/dev/sda2: clean, 20/48960 files, =
33836/195584 blocks</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Setting kernel variables.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Mounting local filesystems...</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">/dev/sda2 on /boot type ext2 =
(rw)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Running 0dns-down to make sure =
resolv.conf is ok...done.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Cleaning: =
/etc/network/ifstate.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Setting up IP spoofing protection: =
rp_filter.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Configuring network interfaces: =
done.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Starting portmap daemon: =
portmap.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Starting portmapper... Mounting =
remote filesystems...</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Setting the System Clock using the =
Hardware Clock as reference...</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">System Clock set. Local time: Fri Sep =
19 00:17:02 IST 2003</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Cleaning: /tmp /var/lock eth0: Setting =
full-duplex based on MII#1 link partner capability of 41e1.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">/var/run.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Initializing random number =
generator... done.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Recovering nvi editor sessions... =
done.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">INIT: Entering runlevel: 2</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Starting system log daemon: =
syslogd.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Starting kernel log daemon: =
klogd.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Starting NFS common utilities: =
statd.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Starting internet superserver: =
inetd.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Exporting directories for NFS kernel =
daemon...done.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Starting NFS kernel daemon: nfsd =
mountd.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Starting deferred execution =
scheduler: atd.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Starting periodic command scheduler: =
cron.</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Debian GNU/Linux 3.0 oak ttyS0</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">oak login: </FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">with warm regards,</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Ranjith Sudarsanan</FONT>
</P>

<P><FONT SIZE=3D2 =
FACE=3D"Arial">--------------------------------------</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Ranjith Sudarsanan</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Rage</FONT><FONT SIZE=3D2 =
FACE=3D"Arial"> Team</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">30CA, Cunningham Road</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Bangalore</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">--------------------------------------</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&quot;</FONT><FONT SIZE=3D2 =
FACE=3D"Arial">When the head bows, it meets the heart and that =
head</FONT> <FONT SIZE=3D2 FACE=3D"Arial">w</FONT><FONT SIZE=3D2 =
FACE=3D"Arial">hich has</FONT><FONT SIZE=3D2 FACE=3D"Arial"></FONT> =
<FONT SIZE=3D2 FACE=3D"Arial">met</FONT><FONT SIZE=3D2 =
FACE=3D"Arial"></FONT> <FONT SIZE=3D2 FACE=3D"Arial">the heart gets the =
crown!!!</FONT><FONT SIZE=3D2 FACE=3D"Arial"> - Sri Sri&quot;</FONT>
</P>

</BODY>
</HTML>
------_=_NextPart_001_01C37E18.06CAF4E8--


From - Thu Nov 08 21:29:13 2018
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Subject: [parisc-linux] sched_clock implementation
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Xref: news.gmane.org gmane.linux.ports.parisc:19531

Anyone want to do better than the lame implementation?  ;-)

----- Forwarded message from Andrew Morton <akpm@osdl.org> -----

I'll be merging Ingo & Con's CPOU scheduler changes into Linus's tree soon.

It does require that the architecture provides a new timing function:

A lame implementation is:

/*
 * Returns nanoseconds
 */

unsigned long long sched_clock(void)
{
	return (unsigned long long)jiffies * (1000000000 / HZ);
}

But for best CPU scheduler results the architecture should try to return a
higher-resolution number than this of course.

sched_clock() has no absolute time requirements: it just has to return some
number which goes up by 1,000,000,000 times per second.

I already have implementations for x86, ppc, sparc64 and ia64.

I have a completely stupid ppc64 implementation which is only accurate on
1GHz CPUs.  Anton please note!

As for the rest, it'll break the build, sorry.

----- End forwarded message -----

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, Sep 19, 2003 at 12:36:55AM +0530, SUDARSANAN,RANJITH (HP-India,ex2) wrote:
...
> oak:/home/sranjith# raw /dev/raw/rawsdb /dev/sdb
> /dev/raw/raw1:  bound to major 8, minor 16
> oak:/home/sranjith# raw /dev/raw/rawsda /dev/sda
> /dev/raw/raw2:  bound to major 8, minor 0
> 
> oak:/home/sranjith# raw -qa
> /dev/raw/raw1:  bound to major 8, minor 16
> /dev/raw/raw2:  bound to major 8, minor 0

I get the impression "raw" is ignoring your input parameter
to use /dev/raw/rawsdb and is using /dev/raw/raw<N> instead.
So it looks like you are comparing the wrong data...

root@debian:/dev# raw --help
raw: invalid option -- -
Usage:
  raw /dev/raw/rawN <major> <minor>
  raw /dev/raw/rawN /dev/<blockdev>
  raw -q /dev/raw/rawN
  raw -qa

What does "dd if=/dev/raw/raw2 of=/tmp/o_raw2 bs=512 count=8" result in?

Anyway, it looks broken for me too.
I tried using raw on 32-bit 2.4.20-pa28:

	raw /dev/raw/raw1 /dev/sda
	raw -qa
/dev/raw/raw1:  bound to major 8, minor 0
	dd if=/dev/raw/raw1 of=/tmp/raw1.o count=8
	/usr/bin/od -Ax -t x /tmp/raw1.o 
000000 00000000 00000000 00000000 00000000
*
001000


/dev/sda is the boot disk for this machine.

root@debian:/dev# /usr/bin/od -Ax -t x /dev/sda | less
000000 00000000 00000000 00000000 00000000
*
000400 40030800 60653403 00000000 0a086200
000410 cd700200 00000000 02000000 02000000
000420 00800000 00800000 40010000 371e6a3f
000430 371e6a3f 10001800 53ef0100 01000000
....


grant


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On Thu, 2003-09-18 at 20:03, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	03/09/18 19:03:56
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: module.c signal.c 
> 	include/asm-parisc: elf.h 
> 
> Log message:
> Clean up signal handling code:
> 
> - remove the less than helpful comments (and replace them with
> meaningful ones
> - get rid of the HACK macros
> - Unify the PLABEL function descriptor handling with modules.c

===== arch/parisc/kernel/module.c 1.8 vs edited =====
--- 1.8/arch/parisc/kernel/module.c	Wed Sep 10 00:44:18 2003
+++ edited/arch/parisc/kernel/module.c	Thu Sep 18 16:01:11 2003
@@ -73,10 +73,7 @@
 	Elf32_Addr addr;
 };
 
-struct fdesc_entry {
-	Elf32_Addr addr;
-	Elf32_Addr gp;
-};
+#define Elf_Fdesc	Elf32_Fdesc
 
 struct stub_entry {
 	Elf32_Word insns[2]; /* each stub entry has two insns */
@@ -86,11 +83,7 @@
 	Elf64_Addr addr;
 };
 
-struct fdesc_entry {
-	Elf64_Addr dummy[2];
-	Elf64_Addr addr;
-	Elf64_Addr gp;
-};
+#define Elf_Fdesc	Elf64_Fdesc
 
 struct stub_entry {
 	Elf64_Word insns[4]; /* each stub entry has four insns */
@@ -276,7 +269,7 @@
 
 	me->core_size = ALIGN(me->core_size, 16);
 	me->arch.fdesc_offset = me->core_size;
-	me->core_size += fdescs * sizeof(struct fdesc_entry);
+	me->core_size += fdescs * sizeof(Elf_Fdesc);
 
 	me->core_size = ALIGN(me->core_size, 16);
 	me->arch.stub_offset = me->core_size;
@@ -322,7 +315,7 @@
 #ifdef __LP64__
 static Elf_Addr get_fdesc(struct module *me, unsigned long value)
 {
-	struct fdesc_entry *fdesc = me->module_core + me->arch.fdesc_offset;
+	Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset;
 
 	if (!value) {
 		printk(KERN_ERR "%s: zero OPD requested!\n", me->name);
@@ -664,7 +657,7 @@
 				*loc64 = get_fdesc(me, val+addend);
 				DEBUGP("FDESC for %s at %p points to %lx\n",
 				       strtab + sym->st_name, *loc64,
-				       ((struct fdesc_entry *)*loc64)->addr);
+				       ((Elf_Fdesc *)*loc64)->addr);
 			} else {
 				/* if the symbol is not local to this
 				 * module then val+addend is a pointer
@@ -696,10 +689,10 @@
 	Elf_Sym *newptr, *oldptr;
 	Elf_Shdr *symhdr = NULL;
 #ifdef DEBUG
-	struct fdesc_entry *entry;
+	Elf_Fdesc *entry;
 	u32 *addr;
 
-	entry = (struct fdesc_entry *)me->init;
+	entry = (Elf_Fdesc *)me->init;
 	printk("FINALIZE, ->init FPTR is %p, GP %lx ADDR %lx\n", entry,
 	       entry->gp, entry->addr);
 	addr = (u32 *)entry->addr;
===== arch/parisc/kernel/signal.c 1.13 vs edited =====
--- 1.13/arch/parisc/kernel/signal.c	Wed Sep 10 00:44:19 2003
+++ edited/arch/parisc/kernel/signal.c	Thu Sep 18 17:49:36 2003
@@ -25,6 +25,7 @@
 #include <linux/unistd.h>
 #include <linux/stddef.h>
 #include <linux/compat.h>
+#include <linux/elf.h>
 #include <asm/ucontext.h>
 #include <asm/rt_sigframe.h>
 #include <asm/uaccess.h>
@@ -41,8 +42,11 @@
 
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
-/* Use this to get at 32-bit user passed pointers. 
- *    See sys_sparc32.c for description about these. */
+/* gcc will complain if a pointer is cast to an integer of different
+ * size.  If you really need to do this (and we do for an ELF32 user
+ * application in an ELF64 kernel) then you have to do a cast to an
+ * integer of the same size first.  The A() macro accomplishes
+ * this. */
 #define A(__x)	((unsigned long)(__x))
 
 int do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall);
@@ -271,7 +275,8 @@
 	       sigset_t *set, struct pt_regs *regs, int in_syscall)
 {
 	struct rt_sigframe *frame;
-	unsigned long rp, usp, haddr;
+	unsigned long rp, usp;
+	Elf32_Addr haddr;
 	struct siginfo si;
 	int err = 0;
 
@@ -308,64 +313,50 @@
 	}
 #endif
 
-#undef CACHE_FLUSHING_IS_NOT_BROKEN
-#ifdef CACHE_FLUSHING_IS_NOT_BROKEN
+	flush_user_dcache_range((unsigned long) &frame->tramp[0],
+			   (unsigned long) &frame->tramp[4]);
 	flush_user_icache_range((unsigned long) &frame->tramp[0],
 			   (unsigned long) &frame->tramp[4]);
-#else
-	/* It should *always* be cache line-aligned, but the compiler
-	sometimes screws up. */
-	asm volatile("fdc 0(%%sr3,%0)\n\t"
-		     "fdc %1(%%sr3,%0)\n\t"
-		     "sync\n\t"
-		     "fic 0(%%sr3,%0)\n\t"
-		     "fic %1(%%sr3,%0)\n\t"
-		     "sync\n\t"
-		      : : "r" (frame->tramp), "r" (L1_CACHE_BYTES));
-#endif
 
 	rp = (unsigned long) frame->tramp;
 
 	if (err)
 		goto give_sigsegv;
 
-/* Much more has to happen with signals than this -- but it'll at least */
-/* provide a pointer to some places which definitely need a look. */
-#define HACK u32
-
-	haddr = (HACK)A(ka->sa.sa_handler);
-	/* ARGH!  Fucking brain damage.  You don't want to know. */
-	if (haddr & 2) {
-		HACK *plabel;
-		HACK ltp;
-
-		plabel = (HACK *) (haddr & ~3);
-		err |= __get_user(haddr, plabel);
-		err |= __get_user(ltp, plabel + 1);
+	haddr = A(ka->sa.sa_handler);
+	/* The sa_handler may be a pointer to a function descriptor */
+	if (haddr & PA_PLABEL_FDESC) {
+		Elf32_Fdesc fdesc;
+		Elf32_Fdesc *ufdesc = (Elf32_Fdesc *)A(haddr & ~3);
+
+		err = __copy_from_user(&fdesc, ufdesc, sizeof(fdesc));
+
 		if (err)
 			goto give_sigsegv;
-		regs->gr[19] = ltp;
+
+		haddr = fdesc.addr;
+		regs->gr[19] = fdesc.gp;
 	}
 
 	/* The syscall return path will create IAOQ values from r31.
 	 */
 	if (in_syscall)
-		regs->gr[31] = (HACK) haddr;
+		regs->gr[31] = haddr;
 	else {
 		regs->gr[0] = USER_PSW;
-		regs->iaoq[0] = (HACK) haddr | 3;
+		regs->iaoq[0] = haddr | 3;
 		regs->iaoq[1] = regs->iaoq[0] + 4;
 	}
 
 	regs->gr[2]  = rp;                /* userland return pointer */
 	regs->gr[26] = sig;               /* signal number */
-	regs->gr[25] = (HACK)A(&frame->info); /* siginfo pointer */
-	regs->gr[24] = (HACK)A(&frame->uc);   /* ucontext pointer */
+	regs->gr[25] = A(&frame->info); /* siginfo pointer */
+	regs->gr[24] = A(&frame->uc);   /* ucontext pointer */
 	DBG(("making sigreturn frame: %#lx + %#x = %#lx\n",
 	       regs->gr[30], PARISC_RT_SIGFRAME_SIZE,
 	       regs->gr[30] + PARISC_RT_SIGFRAME_SIZE));
 	/* Raise the user stack pointer to make a proper call frame. */
-	regs->gr[30] = ((HACK)A(frame) + PARISC_RT_SIGFRAME_SIZE);
+	regs->gr[30] = (A(frame) + PARISC_RT_SIGFRAME_SIZE);
 
 	DBG(("SIG deliver (%s:%d): frame=0x%p sp=%#lx iaoq=%#lx/%#lx rp=%#lx\n",
 	       current->comm, current->pid, frame, regs->gr[30],
===== include/asm-parisc/elf.h 1.8 vs edited =====
--- 1.8/include/asm-parisc/elf.h	Wed Sep 10 00:44:23 2003
+++ edited/include/asm-parisc/elf.h	Thu Sep 18 16:07:25 2003
@@ -144,6 +144,30 @@
 #define R_PARISC_LTOFF_TP16DF	231	/* 16 bits LT-TP-rel. address.  */
 #define R_PARISC_HIRESERVE	255
 
+#define PA_PLABEL_FDESC		0x02	/* bit set if PLABEL points to
+					 * a function descriptor, not
+					 * an address */
+
+/* The following are PA function descriptors 
+ *
+ * addr:	the absolute address of the function
+ * gp:		either the data pointer (r27) for non-PIC code or the
+ *		the PLT pointer (r19) for PIC code */
+
+/* Format for the Elf32 Function descriptor */
+typedef struct elf32_fdesc {
+	__u32	addr;
+	__u32	gp;
+} Elf32_Fdesc;
+
+/* Format for the Elf64 Function descriptor */
+typedef struct elf64_fdesc {
+	__u64	dummy[2]; /* FIXME: nothing uses these, why waste
+			   * the space */
+	__u64	addr;
+	__u64	gp;
+} Elf64_Fdesc;
+
 /* Legal values for p_type field of Elf32_Phdr/Elf64_Phdr.  */
 
 #define PT_HP_TLS		(PT_LOOS + 0x0)




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From: Tilo Riemer <t.riemer@visoel.de>
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Subject: Re: [parisc-linux] update of libc?
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Hello,

thanks for all hints.

I could update to libc 2.3 without problems. All seems to work...


Best regards, Tilo


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> -#undef CACHE_FLUSHING_IS_NOT_BROKEN
> -#ifdef CACHE_FLUSHING_IS_NOT_BROKEN
> +	flush_user_dcache_range((unsigned long) &frame->tramp[0],
> +			   (unsigned long) &frame->tramp[4]);
>  	flush_user_icache_range((unsigned long) &frame->tramp[0],
>  			   (unsigned long) &frame->tramp[4]);

we also have a flush_icache_user_range range macro that does this (flush
dcache + icache). The kernel seems to use both..... 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi,

Grant:
>>>I get the impression "raw" is ignoring your input parameter
>>>to use /dev/raw/rawsdb and is using /dev/raw/raw<N> instead.
>>>So it looks like you are comparing the wrong data...

Ranjith:
	When I bind an block interface to a raw device, I see that
/dev/raw/raw<N>, <N> is the minor number of the node entry which is created
in the /dev/raw/ directory. I tried binding to /dev/raw/raw1 instead of
/dev/raw/rawsda. I still get the same results. (If the binding is not
present raw complains)

	This problem does not seem to be there on the X86 and IA64 kernels.
I guess this is something specific to PA Linux kernel. I am compiling the
kernel with debugs enabled. Please let me know if anyone gets a lead on
this.

Grant:
>>>>What does "dd if=/dev/raw/raw2 of=/tmp/o_raw2 bs=512 count=8" result in?
Ranjith:
This command reads the first 4K bytes of the disk and writes it to file
o_raw2. 

with warm regards,
Ranjith Sudarsanan

--------------------------------------
Ranjith Sudarsanan
Rage Team
30CA, Cunningham Road
Bangalore
Off: 91-80-205 3190
Res: 91-80-522 2577 
web: http://nt2651.india.hp.com:8080/
--------------------------------------
"When the head bows, it meets the heart and that head which has met the
heart gets the crown!!! - Sri Sri"


-----Original Message-----
From: Grant Grundler [mailto:grundler@parisc-linux.org] 
Sent: Friday, September 19, 2003 4:30 AM
To: SUDARSANAN,RANJITH (HP-India,ex2)
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Problems with raw interface.


On Fri, Sep 19, 2003 at 12:36:55AM +0530, SUDARSANAN,RANJITH (HP-India,ex2)
wrote: ...
> oak:/home/sranjith# raw /dev/raw/rawsdb /dev/sdb
> /dev/raw/raw1:  bound to major 8, minor 16 oak:/home/sranjith# raw 
> /dev/raw/rawsda /dev/sda
> /dev/raw/raw2:  bound to major 8, minor 0
> 
> oak:/home/sranjith# raw -qa
> /dev/raw/raw1:  bound to major 8, minor 16
> /dev/raw/raw2:  bound to major 8, minor 0

I get the impression "raw" is ignoring your input parameter
to use /dev/raw/rawsdb and is using /dev/raw/raw<N> instead.
So it looks like you are comparing the wrong data...

root@debian:/dev# raw --help
raw: invalid option -- -
Usage:
  raw /dev/raw/rawN <major> <minor>
  raw /dev/raw/rawN /dev/<blockdev>
  raw -q /dev/raw/rawN
  raw -qa

What does "dd if=/dev/raw/raw2 of=/tmp/o_raw2 bs=512 count=8" result in?

Anyway, it looks broken for me too.
I tried using raw on 32-bit 2.4.20-pa28:

	raw /dev/raw/raw1 /dev/sda
	raw -qa
/dev/raw/raw1:  bound to major 8, minor 0
	dd if=/dev/raw/raw1 of=/tmp/raw1.o count=8
	/usr/bin/od -Ax -t x /tmp/raw1.o 
000000 00000000 00000000 00000000 00000000
*
001000


/dev/sda is the boot disk for this machine.

root@debian:/dev# /usr/bin/od -Ax -t x /dev/sda | less
000000 00000000 00000000 00000000 00000000
*
000400 40030800 60653403 00000000 0a086200
000410 cd700200 00000000 02000000 02000000
000420 00800000 00800000 40010000 371e6a3f
000430 371e6a3f 10001800 53ef0100 01000000
....


grant


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] r19 (aka pic-register akak ltp) not restored on entry back to libc from libpthread?
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jda,

Perhaps you can help here with my problem, again it's an r19 related
issue.

make[2]: *** [/glibc-cvs/build-hppa/posix/tst-regex.out] Error 139

Breakpoint 1, fixup (l=0xfaf00d68, reloc_offset=1248) at dl-runtime.c:72
72        alloca (sizeof (int));
(gdb) c 22

I exit the loader, and I have ~2700 insn before I get to here...

(gdb) si 2713

I've traced it down to:

0000000040024000-000000004016d000 r-xp 0000000000000000 08:04 1308771
/mnt/flaire/src/glibc-cvs/build-hppa/libc.so

Looks like "public_mALLOc" from libc/malloc/malloc.c trying to unlock
the memory arena mutex.

00081ea0 <__libc_malloc>:
0x400a5f50:     copy r4,r19
0x400a5f54:     cmpib,= 0,ret0,0x400a5f8c
...

r19 = 40181d50 (All is good, all is quiet for 2700 insn)

(gdb) x/4 0x40181d50-0x1800+0x400
0x40180950: 0x400a6234 0x40181d50 0x40094320 0x40181d50

(Stub)
0x400abf0c:     b,l 0x400abf14,r1
0x400abf10:     addil 9f000,r1,%r1
0x400abf14:     be,n 71c(sr4,r1)
(Load r19 and target address from PLABEL)
0x4014b630:     bb,>=,n r22,1e,0x4014b640
0x4014b634:     depwi 0,31,2,r22
0x4014b638:     ldw 4(sr0,r22),r19
0x4014b63c:     ldw 0(sr0,r22),r22
0x4014b640:     bv r0(r22)
0x4014b644:     stw rp,-18(sr0,sp)

r19 = 401a57a8 (Good for libpthread ...)

(gdb) x /4 0x401a57a8-0x1800+0x400
0x401a43a8: 0x00000008 0x0000b6ac 0x0000b6e8 0x08000000
            ^^^^^^^^^^ Soon to be fatal return address.

000072e0 <__pthread_mutex_unlock>:
0x4018d2e0:     stw rp,-14(sr0,sp)
0x4018d2e4:     stw,ma r4,40(sr0,sp)
0x4018d2e8:     stw r19,-20(sr0,sp)		# 2719
...

0000000040186000-0000000040195000 r-xp 0000000000000000 08:04 655453
/mnt/flaire/src/glibc-cvs/build-hppa/linuxthreads/libpthread.so

0x4019063c:     stw r19,-20(sr0,sp)		# 2742
...
0x40190860:     stw r19,-20(sr0,sp)		
...
0x401908f8:     bv r0(rp)			# 2774
0x401908fc:     ldo -80(sp),sp
...
0x40190770:     bv r0(rp)
0x40190774:     ldo -80(sp),sp
...
000072e0 <__pthread_mutex_unlock>
0x4018d334:     bv r0(rp)			# 2806
0x4018d338:     ldw,mb -40(sr0,sp),r4
...
00081ea0 <__libc_malloc>
0x400a5f84:     b,l 0x400a5edc,r0
0x400a5f88:     copy r5,ret0
...

Hold your horses here, we made it back into libc but our ltp is still
that which we loaded upon entry to libpthread? :(

0x400a5eec:     bv r0(rp)
0x400a5ef0:     ldw,mb -40(sr0,sp),r6
...
0x401028e4:     cmpib,<> 0,r20,0x40102918
0x401028e8:     copy r3,r25
...
0x40102918:     b,l 0x40116658,rp		# 2839
0x4010291c:     copy r6,r26

First use of libpthread's r19 is fatal.

0x40116658:     addil -1800,r19,%r1		# 2840
0x4011665c:     ldw 400(sr0,r1),r21  <--- *BOOM* r21=0x8
0x40116660:     bv r0(r21)
0x40116664:     ldw 404(sr0,r1),r19 

Any thoughts? Did I miss something?

Cheers,
Carlos.


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On Fri, 2003-09-19 at 06:24, Randolph Chung wrote:
> we also have a flush_icache_user_range range macro that does this (flush
> dcache + icache). The kernel seems to use both..... 

Well, I just took the least line of resistance.

But it does beg the question: I think all of the PA arch docs require
the dcache to be flushed before the icache for all icache flushing, so
is there any point exporting an API that only flushes the icache?

James




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Matthew Wilcox wrote:

>Anyone want to do better than the lame implementation?  ;-)
>
>----- Forwarded message from Andrew Morton <akpm@osdl.org> -----
>
>I'll be merging Ingo & Con's CPOU scheduler changes into Linus's tree soon.
>
>It does require that the architecture provides a new timing function:
>
>A lame implementation is:
>
>/*
> * Returns nanoseconds
> */
>  
>
Hi Willy,

(Certainly yet another stupid question but) to reach such accuracy we 
would need to have access to some 'time device' with an accuracy better 
then the nanosec (iirc 10^-9) (because it doesn't seems to me possible 
to get enough accuracy with cpu clock < 10^9 ie 1Ghz: the most case for 
parisc systems). Does it exist such device and where to start to read 
some doc?

Tanks,
    Joel

>unsigned long long sched_clock(void)
>{
>	return (unsigned long long)jiffies * (1000000000 / HZ);
>}
>
>But for best CPU scheduler results the architecture should try to return a
>higher-resolution number than this of course.
>
>sched_clock() has no absolute time requirements: it just has to return some
>number which goes up by 1,000,000,000 times per second.
>
>I already have implementations for x86, ppc, sparc64 and ia64.
>
>I have a completely stupid ppc64 implementation which is only accurate on
>1GHz CPUs.  Anton please note!
>
>As for the rest, it'll break the build, sorry.
>
>----- End forwarded message -----
>
>  
>




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On Fri, Sep 19, 2003 at 03:32:41PM +0000, Joel Soete wrote:
> Matthew Wilcox wrote:
> 
> >Anyone want to do better than the lame implementation?  ;-)
> >
> >----- Forwarded message from Andrew Morton <akpm@osdl.org> -----
> >
> >I'll be merging Ingo & Con's CPOU scheduler changes into Linus's tree soon.
> >
> >It does require that the architecture provides a new timing function:
> >
> >A lame implementation is:
> >
> >/*
> >* Returns nanoseconds
> >*/
> > 
> >
> Hi Willy,
> 
> (Certainly yet another stupid question but) to reach such accuracy we 
> would need to have access to some 'time device' with an accuracy better 
> then the nanosec (iirc 10^-9) (because it doesn't seems to me possible 
> to get enough accuracy with cpu clock < 10^9 ie 1Ghz: the most case for 
> parisc systems). Does it exist such device and where to start to read 
> some doc?

We could use cr16 to get better accuracy. See list discussions about
fast gettimeofday.

c.


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Carlos O'Donell wrote:

>On Fri, Sep 19, 2003 at 03:32:41PM +0000, Joel Soete wrote:
>  
>
>>Matthew Wilcox wrote:
>>
>>    
>>
>>>Anyone want to do better than the lame implementation?  ;-)
>>>
>>>----- Forwarded message from Andrew Morton <akpm@osdl.org> -----
>>>
>>>I'll be merging Ingo & Con's CPOU scheduler changes into Linus's tree soon.
>>>
>>>It does require that the architecture provides a new timing function:
>>>
>>>A lame implementation is:
>>>
>>>/*
>>>* Returns nanoseconds
>>>*/
>>>
>>>
>>>      
>>>
>>Hi Willy,
>>
>>(Certainly yet another stupid question but) to reach such accuracy we 
>>would need to have access to some 'time device' with an accuracy better 
>>then the nanosec (iirc 10^-9) (because it doesn't seems to me possible 
>>to get enough accuracy with cpu clock < 10^9 ie 1Ghz: the most case for 
>>parisc systems). Does it exist such device and where to start to read 
>>some doc?
>>    
>>
>
>We could use cr16 to get better accuracy. See list discussions about
>fast gettimeofday.
>  
>
ha ok I will have a look :)

Thanks a lot,
    Joel



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Hi,

On Thu, 2003-09-18 at 22:08, Alan Cox wrote:
> Might interest you since this is possibly showing raw has cache
> coherency issues with HPPA (which is basically software coherency only)

> -----Forwarded Message-----
> > From: "SUDARSANAN,RANJITH (HP-India,ex2)" <ranjith_sudarsanan@hp.com>
> > To: parisc-linux@lists.parisc-linux.org
> > Subject: [parisc-linux] Problems with raw interface.
> > Date: Fri, 19 Sep 2003 00:36:55 +0530

> >         I am developing a scsi disk exerciser and I am blocked on a
> > strange problem with the raw interface. When I use the block device
> > /dev/sda directly I am able to read and write from the disk properly.
> > But when I use the raw interface I get garbage. For instance please
> > look at the output below. I am reading the 1st sector of the disk,
> > which is the boot sector, When I use the block device /dev/sda I get
> > my expected output, whereas when I use the raw interface I get
> > garbage. Can any one explain? The machine I am using is an L Class. 

Do you _ever_ get valid output, or is raw always failing?  There may
well be a cache coherency point being missed.

The key places are rw_raw_dev(), where we set up the virtual address to
physical page mappings, and brw_kiovec(), where the actual physical page
IO is done.

--Stephen



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Subject: Re: [parisc-linux] r19 (aka pic-register akak ltp) not restored on entry back to libc from libpthread?
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> Hold your horses here, we made it back into libc but our ltp is still
> that which we loaded upon entry to libpthread? :(

That's ok.  It's the responsibility of the libc code to restore ltp
after a call or exception.  However, as discussed previously, there
is no restoration after a syscall.  That should be the system's job,
although I believe you were going to introduce a hack/workaround to
fix the syscalls that clobber r19.

You need to step through the libc code from the return point in
libc to see why ltp isn't being restored.  Possibly, libpthread is
being called by assembly code that doesn't restore ltp.  Normally,
r19 is restored quite soon after a call.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] r19 (aka pic-register akak ltp) not restored on entry back to libc from libpthread?
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On Fri, Sep 19, 2003 at 12:56:46PM -0400, John David Anglin wrote:
> > Hold your horses here, we made it back into libc but our ltp is still
> > that which we loaded upon entry to libpthread? :(
> 
> That's ok.  It's the responsibility of the libc code to restore ltp
> after a call or exception.  However, as discussed previously, there
> is no restoration after a syscall.  That should be the system's job,
> although I believe you were going to introduce a hack/workaround to
> fix the syscalls that clobber r19.

For all syscalls whose wrappers are pure assembly or __asm(...) I have
placed restorations to follow ABI. This fixed all of the major failures.
It's a bit drastic, but it fixes the issue until I know exactly which
syscall numbers clobber r19. It looks like just fork and it's variants
that stick a return address into PT_REGS's r19. That's a side issue
about optimization though. 

> You need to step through the libc code from the return point in
> libc to see why ltp isn't being restored.  Possibly, libpthread is
> being called by assembly code that doesn't restore ltp.  Normally,
> r19 is restored quite soon after a call.

There should be no assembly code glue between the calls.
What about the gcc optimization where we don't restore r19 if it's not
used between the last call and the return?

mutex_unlock becomes:
__libc_maybe_call (__pthread_mutex_unlock, (m), (*(int *)(m) = 0))

Which is a big monstrosity that looks like it might be casting things
incorrectly for hppa...

===
#if defined _LIBC && defined IS_IN_libpthread
# define __libc_maybe_call(FUNC, ARGS, ELSE) FUNC ARGS
#else
# if defined __PIC__ || (defined _LIBC && defined SHARED)
#  define __libc_maybe_call(FUNC, ARGS, ELSE) \
  (__extension__ ({ __typeof (FUNC) *_fn = (FUNC); \
                    _fn != NULL ? (*_fn) ARGS : ELSE; }))
# else
#  define __libc_maybe_call(FUNC, ARGS, ELSE) \
  (FUNC != NULL ? FUNC ARGS : ELSE)
# endif
#endif
#if defined _LIBC && !defined NOT_IN_libc && defined SHARED
# define __libc_maybe_call2(FUNC, ARGS, ELSE) \
  ({__builtin_expect (__libc_pthread_functions.ptr_##FUNC != NULL, 0) \
    ? __libc_pthread_functions.ptr_##FUNC ARGS : ELSE; })
#else
# define __libc_maybe_call2(FUNC, ARGS, ELSE) __libc_maybe_call
# (__##FUNC, ARGS, ELSE)
#endif
===

I have class, then I'll be back to -E some of the malloc build to see
what this evaluates to and then try to determine if gcc did the right
thing.

c.


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James Bottomley wrote:

> But it does beg the question: I think all of the PA arch docs require
> the dcache to be flushed before the icache for all icache flushing, so
> is there any point exporting an API that only flushes the icache?

Not true.  If you know that the line can't be in the d-cache, then
flushing the i-cache is sufficient (and vice-versa).  See "Data Cache
Move-In", "Instruction Cache Move-In", and "Cache Flushing" in Appendix
F of "PA-RISC 2.0 Architecture" (aka, "The Kane Book"), for details.

Now, whether pa-linux keeps track of whether a line could be in only the
d- or i-cache, with sufficient accuracy to avoid the other flush, I have
no idea.  HP-UX does attempt to track this, but doing so in every case
can be really tricky, and tracking down the data (or instruction)
corruption bugs when you miss some obscure case is a nightmare (and I
have the scars to prove it :).

 -- Jim
    HP PA-RISC/Itanium Processor Architect



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On Fri, 2003-09-19 at 12:51, Carlos O'Donell wrote:
> mutex_unlock becomes:
> __libc_maybe_call (__pthread_mutex_unlock, (m), (*(int *)(m) = 0))

This seems all to work:

A test file

main() {
  int t1 = 4;
  __libc_maybe_call(test1, (t1), (t1=3));
}

compiles (PIC) to:

00000000 <main>:
[...]
 20:   2a 60 00 00     addil 0,r19,%r1
                        20: R_PARISC_DLTIND21L  .LC0
  24:   48 21 00 00     ldw 0(r1),r1
                        24: R_PARISC_DLTIND14R  .LC0
  28:   0c 20 10 94     ldw 0(,r1),r20
  2c:   0c 74 12 98     stw r20,c(,r3)
  30:   0c 78 10 94     ldw c(,r3),r20
  34:   86 80 20 3a     cmpib,=,n 0,r20,58 <main+0x58>
  38:   0c 78 10 94     ldw c(,r3),r20
  3c:   0c 70 10 9a     ldw 8(,r3),r26
  40:   08 14 02 56     copy r20,r22
  44:   08 13 02 44     copy r19,r4
  48:   eb e0 00 00     b,l 50 <main+0x50>,r31
                        48: R_PARISC_PCREL17F   $$dyncall
  4c:   08 1f 02 42     copy r31,rp
  50:   08 04 02 53     copy r4,r19
[...]
00000000 <.LC0>:
   0:   00 00 00 00     break 0,0
                        0: R_PARISC_PLABEL32    test1
[...]
00010578 <$$dyncall>:
   10578:	c7 d6 c0 12 	bb,>=,n r22,1e,10588 <$$dyncall+0x10>
   1057c:	d6 c0 1c 1e 	depwi 0,31,2,r22
   10580:	0e c8 10 93 	ldw 4(,r22),r19
   10584:	0e c0 10 96 	ldw 0(,r22),r22
   10588:	ea c0 c0 00 	bv r0(r22)
   1058c:	6b c2 3f d1 	stw rp,-18(sp)


The $$dyncall is where we indirect through r20 (which contains the
function pointer).  Note the copy restoring r19 around this.

James




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Subject: Re: [parisc-linux] r19 (aka pic-register akak ltp) not restored on
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> On Fri, 2003-09-19 at 12:51, Carlos O'Donell wrote:
> > mutex_unlock becomes:
> > __libc_maybe_call (__pthread_mutex_unlock, (m), (*(int *)(m) = 0))
> 
> This seems all to work:

Yah, the normal code that gcc generates to restore the ltp is very
extensively tested.  Shared libraries would break almost instantly
if there were major problems.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Fri, Sep 19, 2003 at 02:55:30PM -0400, John David Anglin wrote:
> > On Fri, 2003-09-19 at 12:51, Carlos O'Donell wrote:
> > > mutex_unlock becomes:
> > > __libc_maybe_call (__pthread_mutex_unlock, (m), (*(int *)(m) = 0))
> > 
> > This seems all to work:
> 
> Yah, the normal code that gcc generates to restore the ltp is very
> extensively tested.  Shared libraries would break almost instantly
> if there were major problems.
> 

If it were major we would have fixed it :)
I'm trying to find the "missed a restore" point.

c.


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> If it were major we would have fixed it :)
> I'm trying to find the "missed a restore" point.

0x4019063c:     stw r19,-20(sr0,sp)             # 2742

Just a note, GCC saves r19 in the frame marker in the prologue of
non-leaf functions but we never attempt to restore r19 from the frame
marker.  This is the mandated ABI behavior.  At the moment, GCC copies
r19 to r4 for the save.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Martin <inkubus@interalpha.co.uk>
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Subject: [parisc-linux] OT:Problems with hardware - RDI Precision Book
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Sorry, I know this is OT but I have a feeling if I'm going to find
anyone who can help it may well be here.

Bought an RDI precision book a while back and was just about to put
Linux on it.  Pressed the power button and the 'power', 'network' and
'disk' icons light up on the LCD panel but nothing else happens.  Have
tried with other disks, network cable, external monitor and external
scsi and it still does nothing.

Does anyone have any suggestions?  I really need a working laptop and am
getting more than a little frustrated...

Cheers,
 - Martin

-- 
Martin
inkubus@interalpha.co.uk
"Seasons change, things come to pass"



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Carlos O'Donell wrote:

>On Fri, Sep 19, 2003 at 03:32:41PM +0000, Joel Soete wrote:
>  
>
>>Matthew Wilcox wrote:
>>
>>    
>>
>>>Anyone want to do better than the lame implementation?  ;-)
>>>
>>>----- Forwarded message from Andrew Morton <akpm@osdl.org> -----
>>>
>>>I'll be merging Ingo & Con's CPOU scheduler changes into Linus's tree soon.
>>>
>>>It does require that the architecture provides a new timing function:
>>>
>>>A lame implementation is:
>>>
>>>/*
>>>* Returns nanoseconds
>>>*/
>>>
>>>
>>>      
>>>
>>Hi Willy,
>>
>>(Certainly yet another stupid question but) to reach such accuracy we 
>>would need to have access to some 'time device' with an accuracy better 
>>then the nanosec (iirc 10^-9) (because it doesn't seems to me possible 
>>to get enough accuracy with cpu clock < 10^9 ie 1Ghz: the most case for 
>>parisc systems). Does it exist such device and where to start to read 
>>some doc?
>>    
>>
>
>We could use cr16 to get better accuracy. See list discussions about
>fast gettimeofday.
>
>c.
>
Hi all,

a quick look into paxx.pdf which about CR16 speak of "peak instruction 
rate" but do not define anywhere?
I presume that is the cpu clock but would like somebody confirm.

Thanks in advance,
    Joel




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On Fri, Sep 19, 2003 at 06:07:41PM +0530, SUDARSANAN,RANJITH (HP-India,ex2) wrote:
> >>>>What does "dd if=/dev/raw/raw2 of=/tmp/o_raw2 bs=512 count=8" result in?
> This command reads the first 4K bytes of the disk and writes it to file
> o_raw2. 

Ah yes, but is the data correct?
I'll assume not since your attempt with /dev/raw/raw1 also failed.

Basically something looks broken in parisc for raw devices.
I was clearly able to reproduce this failure.

grant


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On Sat, Sep 20, 2003 at 06:02:10PM +0000, Joel Soete wrote:
> a quick look into paxx.pdf which about CR16 speak of "peak instruction 
> rate" but do not define anywhere?
> I presume that is the cpu clock but would like somebody confirm.

Read about "Interval Timer" (cr16) in the PA 2.0 Arch book.
PDC provides the exact rate that CR16 is changing.
Looks like PDC_TOD_ITIMER is the call but I'm not sure offhand.
In any case, I've only seen it used as CPU cycle counter.
(ie 1:1 with CPU clock).

hth,
grant


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On Fri, Sep 19, 2003 at 05:34:04PM +0100, Stephen C. Tweedie wrote:
> > > But when I use the raw interface I get garbage. For instance please
> > > look at the output below. I am reading the 1st sector of the disk,
> > > which is the boot sector, When I use the block device /dev/sda I get
> > > my expected output, whereas when I use the raw interface I get
> > > garbage. Can any one explain? The machine I am using is an L Class. 
> 
> Do you _ever_ get valid output, or is raw always failing?  There may
> well be a cache coherency point being missed.

I was able to consistently reproduce this problem on a c3000 (400Mhz
PA8500). That's running 2.4.22 kernel.

> The key places are rw_raw_dev(), where we set up the virtual address to
> physical page mappings, and brw_kiovec(), where the actual physical page
> IO is done.

ok - I should try again with 2.6 kernel and look again.
But I'm certainly no vm/cache expert.

grant


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On Fri, Sep 19, 2003 at 05:34:04PM +0100, Stephen C. Tweedie wrote:
> Do you _ever_ get valid output, or is raw always failing?
> There may well be a cache coherency point being missed.

2.6.0-test5 (-pa9) produced incorrect output 3 for 3.
But it's NOT identical for all three runs.
I think you are correct.

BTW, kernel and user space will alias to different cachelines
for the same 32-bit "offset" because of "Space Registers"
(form of segmented addressing).

I grabbed 128k data off the beginning of the disk.
Reading 8 blocks from raw1 was only showing all zeros.

I'll guess 2.4.22 has same bug since beginning out "output"
was also all zero's. Getting longer runs from 2.4.22
would be useful...something for tomorrow or monday.

I used:
  ion:/tmp# dd if=/dev/sda of=/tmp/sda.block1 count=512
and
  ion:/tmp# dd if=/dev/raw/raw1 of=/tmp/sda.raw1 count=512

grundler@ion:/tmp$ cksum *
1803524181 262144 sda.block1
1803524181 262144 sda.block2
1803524181 262144 sda.block3
3975907619 262144 sda.raw1
3975907619 262144 sda.raw2
2757932476 262144 sda.raw3

/ is on /dev/sdh

Output files are on ftp://gsyprf10.external.hp.com/pub/raw-pa9/

I just added 2MB files (2MB since 1.5MB dcache) which show more
of the same.

od -Ax -tx /tmp/sda.raw3 | less
000000 00000000 00000000 00000000 00000000
*
02b290 30000000 70000000 00000000 00000500
02b2a0 56000000 18000100 2d000000 00000100
02b2b0 fa040f98 0127c101 082c1698 0127c101
02b2c0 00000000 00000000 00000000 00000000
*
02b490 30000000 70000000 00000000 00000500
02b4a0 56000000 18000100 2d000000 00000100
02b4b0 fa040f98 0127c101 082c1698 0127c101
02b4c0 00000000 00000000 00000000 00000000
*
...

I think sda contains random data from a previous life in a test environment.

ion:/tmp# od -Ax -tx /tmp/sda.block1 | less
000000 33c08ed0 bc007cfb 5007501f fcbe1b7c
000010 bf1b0650 57b9e501 f3a4cbbd be07b104
000020 386e007c 09751383 c510e2f4 cd188bf5
000030 83c61049 7419382c 74f6a0b5 07b4078b
000040 f0ac3c00 74fcbb07 00b40ecd 10ebf288
000050 4e10e846 00732afe 4610807e 040b740b
000060 807e040c 7405a0b6 0775d280 46020683
...


> The key places are rw_raw_dev(), where we set up the virtual address to
> physical page mappings, and brw_kiovec(), where the actual physical page
> IO is done.

I can look, but willy or jejb have much better chance of finding
something...

cheers,
grant


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On Sunday 21 September 2003 02:04, Grant Grundler wrote:
> On Sat, Sep 20, 2003 at 06:02:10PM +0000, Joel Soete wrote:
> > a quick look into paxx.pdf which about CR16 speak of "peak instruction
> > rate" but do not define anywhere?
> > I presume that is the cpu clock but would like somebody confirm.
>
> Read about "Interval Timer" (cr16) in the PA 2.0 Arch book.
> PDC provides the exact rate that CR16 is changing.
> Looks like PDC_TOD_ITIMER is the call but I'm not sure offhand.
> In any case, I've only seen it used as CPU cycle counter.
> (ie 1:1 with CPU clock).

Hi Joel,

I think we have the rate in the variable "boot_cpu_data.cpu_hz" (see 
arch/parisc/kernel/processor.c) already.

Helge


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On Sat, Sep 20, 2003 at 11:35:55PM -0600, Grant Grundler wrote:
> BTW, kernel and user space will alias to different cachelines
> for the same 32-bit "offset" because of "Space Registers"
> (form of segmented addressing).

Rubbish, they alias to the same cachelines because of the 4MB get-out
clause.  What you may have meant is that the same page accessed through
user and kernel mappings will alias to different cachelines because
their addresses *aren't* congruent modulo 4MB.

> > The key places are rw_raw_dev(), where we set up the virtual address to
> > physical page mappings, and brw_kiovec(), where the actual physical page
> > IO is done.
> 
> I can look, but willy or jejb have much better chance of finding
> something...

Those functions don't seem to exist in 2.6.  The only reference is:
./Documentation/block/biodoc.txt: of data, so brw_kiovec() invokes ll_rw_kio for each kiobuf in a kiovec.
which seems to be an orphaned comment.

I'll reluctantly take a look at 2.4.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sun, Sep 21, 2003 at 01:20:36PM +0200, Helge Deller wrote:
> On Sunday 21 September 2003 02:04, Grant Grundler wrote:
> > On Sat, Sep 20, 2003 at 06:02:10PM +0000, Joel Soete wrote:
> > > a quick look into paxx.pdf which about CR16 speak of "peak instruction
> > > rate" but do not define anywhere?
> > > I presume that is the cpu clock but would like somebody confirm.
> >
> > Read about "Interval Timer" (cr16) in the PA 2.0 Arch book.
> > PDC provides the exact rate that CR16 is changing.
> > Looks like PDC_TOD_ITIMER is the call but I'm not sure offhand.
> > In any case, I've only seen it used as CPU cycle counter.
> > (ie 1:1 with CPU clock).
> 
> Hi Joel,
> 
> I think we have the rate in the variable "boot_cpu_data.cpu_hz" (see 
> arch/parisc/kernel/processor.c) already.

Technically that's our highest precision timer :)

c.


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Subject: [parisc-linux] Found the r19 problem!
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On Fri, Sep 19, 2003 at 04:10:47PM -0400, John David Anglin wrote:
> > If it were major we would have fixed it :)
> > I'm trying to find the "missed a restore" point.
> 
> 0x4019063c:     stw r19,-20(sr0,sp)             # 2742
> 
> Just a note, GCC saves r19 in the frame marker in the prologue of
> non-leaf functions but we never attempt to restore r19 from the frame
> marker.  This is the mandated ABI behavior.  At the moment, GCC copies
> r19 to r4 for the save.

I would like to start this off with:
"JDA said don't put r19 into clobber list"

I didn't listen. I thought it should all still work.
James reports that removing r19 from the clobber list works, but I still
haven't rebuilt my tree, so I'll see.

Example (Assembly trace provided at the end):

getcwd: (Start of function)
	stw r19,-20(sr0,sp)
	...
syscall:
	(Syscall with save/load r19 wrapper)
	stw r19,-20(sr0,sp)
	be,l 100(sr2,r0),%sr0,%r31
	ldi 6e,r20
	ldw -20(sr0,sp),r19
	...
	(Many insn later)
	(stub) (dyncall) -> libpthread.so
	-> libc.so
	(r19 not restored)
	(Jump to syscall:)
	...

o GCC is confused by the r19 asm(...) clobber?

Notes:

I generated insn traces using gdb scripts.

  __pthread_mutex_unlock: 0x7730 <0x4018c730>	(In libpthread)
 __libc_malloc: 0x7f4a0 <0x400a34a0>		(In libc)

(return stub)
0x400a34a0:     b,l 0x400a33f8,r0
0x400a34a4:     copy r5,ret0

(__libc_malloc returning)
0x400a33f8:     ldw -54(sr0,sp),rp
0x400a33fc:     ldw -3c(sr0,sp),r5		(No need to restore r19)
0x400a3400:     ldw -38(sr0,sp),r4
0x400a3404:     ldw -34(sr0,sp),r3
0x400a3408:     bv r0(rp)			(Back to getcwd)
0x400a340c:     ldw,mb -40(sr0,sp),r6

getcwd: 0xdb128 <0x400ff128>
0x400ff128:     ldi 0,r21
0x400ff12c:     cmpib,<> 0,ret0,0x400ff034	(Jump back to do syscall)
0x400ff130:     copy ret0,r6

0x400ff034:     copy r3,r25
0x400ff038:     copy r6,r26
0x400ff03c:     stw r19,-20(sr0,sp)
0x400ff040:     be,l 100(sr2,r0),%sr0,%r31
0x400ff044:     ldi 6e,r20
0x400ff048:     ldw -20(sr0,sp),r19 (si gdb artifact, lost insn inside syscall)
0x400ff048:     ldw -20(sr0,sp),r19 
0x400ff04c:     ldi -1000,r20
0x400ff050:     cmpb,>>= r20,ret0,0x400ff070
0x400ff054:     copy ret0,r3

0x400ff070:     cmpib,>,n 0,r3,0x400ff0cc
0x400ff074:     cmpiclr,<> 0,r7,r21
0x400ff078:     ldi 1,r21
0x400ff07c:     cmpiclr,<> 0,r5,r20
0x400ff080:     ldi 1,r20
0x400ff084:     and r20,r21,r20
0x400ff088:     cmpib,<> 0,r20,0x400ff0bc
0x400ff08c:     copy r3,r25			(No r19 restore yet!!!)

(call stub)
0x400ff0bc:     b,l 0x40114e2c,rp
0x400ff0c0:     copy r6,r26

(stub)
0x40114e2c:     addil -1800,r19,%r1
0x40114e30:     ldw 428(sr0,r1),r21
0x40114e34:     bv r0(r21)
0x40114e38:     ldw 42c(sr0,r1),r19


getcwd: 0xdb0c0 <0x400ff0c0>
(stub) *BOOM*

Is there any way we can make this work?

c.



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> I would like to start this off with:
> "JDA said don't put r19 into clobber list"
> 
> I didn't listen. I thought it should all still work.
> James reports that removing r19 from the clobber list works, but I still
> haven't rebuilt my tree, so I'll see.
> 
> Example (Assembly trace provided at the end):
> 
> getcwd: (Start of function)
> 	stw r19,-20(sr0,sp)
> 	...
> syscall:
> 	(Syscall with save/load r19 wrapper)
> 	stw r19,-20(sr0,sp)
> 	be,l 100(sr2,r0),%sr0,%r31
> 	ldi 6e,r20
> 	ldw -20(sr0,sp),r19

It would be better to use a general register for the save/restore.
If you are going to use the slot in the frame marker, it probably
isn't necessary to save r19 before every syscall.  GCC saves r19
in the slot in the prologue of all pic functions.  However, we don't
currently copy the value when when the function does a dynamic stack
allocation.  That's easily fixed.

> 	...
> 	(Many insn later)
> 	(stub) (dyncall) -> libpthread.so
> 	-> libc.so

The above is an indirect call. r19 should be restored after the call
if it is used after the call.

> 	(r19 not restored)
> 	(Jump to syscall:)

It is likely that clobbering r19 in the syscall causes the restore
of r19 to be deleted.  Because of the clobber, GCC believes that
r19 is dead and the restore insn isn't needed.  I think you should
be able to see this by looking at the rtl for the routine.  The save
and restore of r19 in a call are split out after the GCC reload pass.

I'm still somewhat confused.  Isn't the syscall going to clobber
r19?  Don't you need to save and restore r19 here, rather than in the
wrapper?  There seems to be a call (i.e., you die in a linker call
stub) before you get back to the wrapper to restore r19.

> o GCC is confused by the r19 asm(...) clobber?

The management of r19 is very tricky.  It can't be exposed before
reload as all uses of r19 are not known until that time.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: [parisc-linux] warning: long unsigned int format, time_t arg
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Hi all,

during compiling 2.6.0-test5-pa6 with gcc-3.3, i noticed some warning of 
type:
[snip]
  CC      fs/exec.o
fs/exec.c: In function `format_corename':
fs/exec.c:1219: warning: long unsigned int format, time_t arg (arg 4)
[snip]

for which I would suggest the following patch:
hpalin:/Debian-apt/SRC/linux-2.6.0-test5-pa6/fs# diff -Nau exec.c.Orig 
exec.c.new
--- exec.c.Orig    2003-09-10 18:18:40.000000000 +0200
+++ exec.c.new    2003-09-16 23:55:12.000000000 +0200
@@ -1216,7 +1216,7 @@
                 struct timeval tv;
                 do_gettimeofday(&tv);
                 rc = snprintf(out_ptr, out_end - out_ptr,
-                          "%lu", tv.tv_sec);
+                          "%lu", (unsigned long int)tv.tv_sec);
                 if (rc > out_end - out_ptr)
                     goto out;
                 out_ptr += rc;

I would like your opinion before submiting (hmm to Andrew I presume?)

Thanks in advance,
    Joel




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>                  rc = snprintf(out_ptr, out_end - out_ptr,
> -                          "%lu", tv.tv_sec);
> +                          "%lu", (unsigned long int)tv.tv_sec);

This looks ok to me, although you don't need the extra "int".

I noticed in include/asm-parisc/posix_types.h we have:

/* Note these change from narrow to wide kernels */
#ifdef __LP64__
typedef unsigned long           __kernel_size_t;
typedef long                    __kernel_ssize_t;
typedef long                    __kernel_ptrdiff_t;
typedef long                    __kernel_time_t;
#else
typedef unsigned int            __kernel_size_t;
typedef int                     __kernel_ssize_t;
typedef int                     __kernel_ptrdiff_t;
typedef int                     __kernel_time_t;
#endif

On narrow kernels, int and long are the same.  So, why not use long
for both narrow and wide?  Then, the ifdef can be eliminated.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> > Example (Assembly trace provided at the end):
> > 
> > getcwd: (Start of function)
> > 	stw r19,-20(sr0,sp)
> > 	...
> > syscall:
> > 	(Syscall with save/load r19 wrapper)
> > 	stw r19,-20(sr0,sp)
> > 	be,l 100(sr2,r0),%sr0,%r31
> > 	ldi 6e,r20
> > 	ldw -20(sr0,sp),r19
> 
> It would be better to use a general register for the save/restore.
> If you are going to use the slot in the frame marker, it probably
> isn't necessary to save r19 before every syscall.  GCC saves r19
> in the slot in the prologue of all pic functions.  However, we don't
> currently copy the value when when the function does a dynamic stack
> allocation.  That's easily fixed.

So use a caller saves register, place it in the clobbers, and let gcc
work around the usage (e.g. r4).
 
> > 	...
> > 	(Many insn later)
> > 	(stub) (dyncall) -> libpthread.so
> > 	-> libc.so
> 
> The above is an indirect call. r19 should be restored after the call
> if it is used after the call.

It is, but only after the asm(...) that lists r19 in the clobber.

> > 	(r19 not restored)
> > 	(Jump to syscall:)
> 
> It is likely that clobbering r19 in the syscall causes the restore
> of r19 to be deleted.  Because of the clobber, GCC believes that
> r19 is dead and the restore insn isn't needed.  I think you should
> be able to see this by looking at the rtl for the routine.  The save
> and restore of r19 in a call are split out after the GCC reload pass.
> 
> I'm still somewhat confused.  Isn't the syscall going to clobber
> r19?  Don't you need to save and restore r19 here, rather than in the
> wrapper?  There seems to be a call (i.e., you die in a linker call
> stub) before you get back to the wrapper to restore r19.

The presence of r19 in an asm(...) clobber seems to confuse GCC into 
deleting an r19 restore after a return from an interlibrary call. We die
in the linker call stub because it uses libpthread's r19, because GCC
deleted the scheduled restore. Why it deleted the restore is unknown to
me. The syscall wrapper makes sure the syscall doesn't trash r19, it
doesn't assure that the incoming r19 isn't already wrong :)

> > o GCC is confused by the r19 asm(...) clobber?
> 
> The management of r19 is very tricky.  It can't be exposed before
> reload as all uses of r19 are not known until that time.

Agreed, tricky to track down too.

c.


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> So use a caller saves register, place it in the clobbers, and let gcc
> work around the usage (e.g. r4).
>  
> > > 	...
> > > 	(Many insn later)
> > > 	(stub) (dyncall) -> libpthread.so
> > > 	-> libc.so
> > 
> > The above is an indirect call. r19 should be restored after the call
> > if it is used after the call.
> 
> It is, but only after the asm(...) that lists r19 in the clobber.
> 

Sorry "It is" should read "It is used" :)
Things get tricky in email with complex issues.

c.


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On Sun, Sep 21, 2003 at 02:46:20PM -0400, John David Anglin wrote:
> >                  rc = snprintf(out_ptr, out_end - out_ptr,
> > -                          "%lu", tv.tv_sec);
> > +                          "%lu", (unsigned long int)tv.tv_sec);
> 
> This looks ok to me, although you don't need the extra "int".

I'd rather not add these.  They are only warnings, after all.

> I noticed in include/asm-parisc/posix_types.h we have:
> 
> /* Note these change from narrow to wide kernels */
> #ifdef __LP64__
> typedef unsigned long           __kernel_size_t;
> typedef long                    __kernel_ssize_t;
> typedef long                    __kernel_ptrdiff_t;
> typedef long                    __kernel_time_t;
> #else
> typedef unsigned int            __kernel_size_t;
> typedef int                     __kernel_ssize_t;
> typedef int                     __kernel_ptrdiff_t;
> typedef int                     __kernel_time_t;
> #endif
> 
> On narrow kernels, int and long are the same.  So, why not use long
> for both narrow and wide?  Then, the ifdef can be eliminated.

I think it's because gcc complains ;-)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> > So use a caller saves register, place it in the clobbers, and let gcc
> > work around the usage (e.g. r4).
> >  
> > > > 	...
> > > > 	(Many insn later)
> > > > 	(stub) (dyncall) -> libpthread.so
> > > > 	-> libc.so
> > > 
> > > The above is an indirect call. r19 should be restored after the call
> > > if it is used after the call.
> > 
> > It is, but only after the asm(...) that lists r19 in the clobber.
> > 
> 
> Sorry "It is" should read "It is used" :)

Well that's why the restore is deleted.  So, the clobber must go
and r19 must be preserved across the asm(...).  As I said, you can't
clobber r19 when generating pic code.  It's treated as fixed register,
so clobbering it can lead to undefined behavior.

If the syscall used r19, it could include a use of r19 in the asm.
This would ensure the restore occurs before the syscall.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> > /* Note these change from narrow to wide kernels */
> > #ifdef __LP64__
> > typedef unsigned long           __kernel_size_t;
> > typedef long                    __kernel_ssize_t;
> > typedef long                    __kernel_ptrdiff_t;
> > typedef long                    __kernel_time_t;
> > #else
> > typedef unsigned int            __kernel_size_t;
> > typedef int                     __kernel_ssize_t;
> > typedef int                     __kernel_ptrdiff_t;
> > typedef int                     __kernel_time_t;
> > #endif
> > 
> > On narrow kernels, int and long are the same.  So, why not use long
> > for both narrow and wide?  Then, the ifdef can be eliminated.
> 
> I think it's because gcc complains ;-)

Possibly, but the pa seems to be about the only port doing this.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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> So use a caller saves register, place it in the clobbers, and let gcc
> work around the usage (e.g. r4).

Yes.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Sun, Sep 21, 2003 at 03:12:39PM -0400, John David Anglin wrote:
> Well that's why the restore is deleted.  So, the clobber must go
> and r19 must be preserved across the asm(...).  As I said, you can't
> clobber r19 when generating pic code.  It's treated as fixed register,
> so clobbering it can lead to undefined behavior.
> 
> If the syscall used r19, it could include a use of r19 in the asm.
> This would ensure the restore occurs before the syscall.

I'm going to stop writing r19 to the stack and tell gcc I'm using r4,
and then do a copy/copy to get r19 back.

c.


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On Sun, Sep 21, 2003 at 03:16:23PM -0400, John David Anglin wrote:
> > > /* Note these change from narrow to wide kernels */
> > > #ifdef __LP64__
> > > typedef unsigned long           __kernel_size_t;
> > > typedef long                    __kernel_ssize_t;
> > > typedef long                    __kernel_ptrdiff_t;
> > > typedef long                    __kernel_time_t;
> > > #else
> > > typedef unsigned int            __kernel_size_t;
> > > typedef int                     __kernel_ssize_t;
> > > typedef int                     __kernel_ptrdiff_t;
> > > typedef int                     __kernel_time_t;
> > > #endif
> > > 
> > > On narrow kernels, int and long are the same.  So, why not use long
> > > for both narrow and wide?  Then, the ifdef can be eliminated.
> > 
> > I think it's because gcc complains ;-)
> 
> Possibly, but the pa seems to be about the only port doing this.

We're one of the few ports that builds both 32 and 64 bits from the same
port (actually, we were the first).  MIPS recently converted, and S390
before them.  PPC might in the future, and I doubt Sparc ever will.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sun, Sep 21, 2003 at 03:25:04PM +0100, Matthew Wilcox wrote:
> > BTW, kernel and user space will alias to different cachelines
> > for the same 32-bit "offset" because of "Space Registers"
> > (form of segmented addressing).
> 
> Rubbish, they alias to the same cachelines because of the 4MB get-out
> clause.  What you may have meant is that the same page accessed through
> user and kernel mappings will alias to different cachelines because
> their addresses *aren't* congruent modulo 4MB.

yes - that's what I meant...I was thinking at least part of the reason
they aren't congruent is because they are in different "segments" (ie use
a different Space ID). Maybe I'm just confused by past experience where
Space ID hashing was enabled (HPUX); parisc-linux has never had space ID
hashing enabled (at least not intentionally).

BTW, I suspect the following code in 2.4.22 mm/memory.c:map_user_kiobuf()
deals with this problem:
	...
        while (pgcount--) {
	                /* FIXME: flush superflous for rw==READ,
			*  probably wrong function for rw==WRITE
			*/
			flush_dcache_page(iobuf->maplist[pgcount]);
	}
	...

[ I got here because rw_raw_dev() calls map_user_kiobuf().]

But for "READ" (inbound data), I think I need a call that will
invalidate cachelines for userspace addresses. Preferable *after*
the DMA has completed in order to avoid issues with data prefetching
by the CPU.  ie memory has the most recent copy and any CPU holding
cachelines for the kernel address range will be coherent.


> Those functions don't seem to exist in 2.6.  The only reference is:
> ./Documentation/block/biodoc.txt: of data, so brw_kiovec() invokes
> ll_rw_kio for each kiobuf in a kiovec.
> which seems to be an orphaned comment.
> 
> I'll reluctantly take a look at 2.4.

Well, the problem exists in 2.6 and is easy to reproduce.
Perhaps find the equivalent calls there and I'll backport the fix to 2.4?
I'm assuming what's broken is obvious once one finds the right code.

thanks,
grant


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From: Mitchell Blank Jr <mitch@sfgoth.com>
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Subject: [parisc-linux] [2.6 PATCH][PARISC] atomic_read()
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A patch was recently accepted into the main 2.6 tree that makes skb_cloned()
and skb_shared() take a "const" pointer.  These functions call atomic_read()
so it needs to take a const pointer too.  After some discussion on netdev
davem said that this should be safe (even in the pessimal case of a
spinlock-implemented atomic_t we should be able to read its value outside
the lock safely)

PA-RISC uses an inline fucntion for atomic_read() but it doesn't mark its
argument as const, so without this patch you'll start seeing lots of new
compile warnings.

Please apply.  The patch is versus a week ago but the file hasn't changed so
it should apply fine.  It isn't compile tested but it shouldn't cause any
problems.

-Mitch

--- linux-2.6.0-test5-bk3-mnb2/include/asm-parisc/atomic.h	2003-09-12 15:46:35.000000000 -0700
+++ linux-2.6.0-test5-bk3-mnb3/include/asm-parisc/atomic.h	2003-09-21 16:07:11.782837264 -0700
@@ -154,7 +154,7 @@
 	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(v), flags);
 }
 
-static __inline__ int __atomic_read(atomic_t *v)
+static __inline__ int __atomic_read(const atomic_t *v)
 {
 	return v->counter;
 }


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On Sun, 2003-09-21 20:32:29 +0100, Matthew Wilcox <willy@debian.org>
wrote in message <20030921193229.GJ13172@parcelfarce.linux.theplanet.co.uk>:
> On Sun, Sep 21, 2003 at 03:16:23PM -0400, John David Anglin wrote:
> > Possibly, but the pa seems to be about the only port doing this.
>=20
> We're one of the few ports that builds both 32 and 64 bits from the same
> port (actually, we were the first).  MIPS recently converted, and S390
> before them.  PPC might in the future, and I doubt Sparc ever will.

Sparc won't go there - sparc32 and ultra-sparc are really two different
things...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
   ret =3D do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TC=
PA));

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To: Grant Grundler <grundler@parisc-linux.org>
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Hi,

On Mon, 2003-09-22 at 06:00, Grant Grundler wrote:

> BTW, I suspect the following code in 2.4.22 mm/memory.c:map_user_kiobuf()
> deals with this problem:
> 	...
>         while (pgcount--) {
> 	                /* FIXME: flush superflous for rw==READ,
> 			*  probably wrong function for rw==WRITE
> 			*/
> 			flush_dcache_page(iobuf->maplist[pgcount]);
> 	}
> 	...
> 
> [ I got here because rw_raw_dev() calls map_user_kiobuf().]

Well, it might do.  It depends on the architecture, and I know zip about
the parisc cache architecture.  

For writes, we may need to flush cache writes to ram before the IO to
ensure ram is up-to-date.  For reads. we may need to flush pending
writeback before the IO (to ensure that prior cache operations don't end
up being committed on top of the new IO), plus we need to flush the
entire region out of cache after the IO in order to make the new
contents visible.

Where that needs to be done will depend on whether your cache flush
instructions work from physical or virtual addresses.  brw_koivec() is
the place to deal with physical cache flushes and invalidations, as
that's where we do the low-level IO on the struct page.  But you'll need
to do it at a higher level within the raw.c driver itself if you need
access to the virtual addresses.

--Stephen



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From: Brian Zurbach <briansz@ponymail.com>
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Subject: [parisc-linux] Selling my J2240, any interest?
Date: Mon, 22 Sep 2003 04:05:37 -0700
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Nice machine, 2x236MHz PA-8200s with 2MB/2MB cache, 256MB, 9.1GB UW
SCSI, CD, Floppy, Visualize fx4 video, currently working well and
running Debian Woody (2.4.17) over serial console.  Has all plastic,
reasonable condition.

I have two of these machines at the moment, so I've decided to sell
one.  I'll even toss in a spare power supply to sweeten the deal.

I know it isn't the latest/greatest, but it's a pretty capable and
incredibly solid inexpensive server with the dual proc configuration. 
Parts could also upgrade an existing J280 to PA-8200s and SMP.

Good home, reasonable offers?  I'm in AZ at the moment but will be in NM
and parts of CO in the next several weeks.  Trying to avoid putting this
one on fleaBay, the weight *scares* people.

Regards,

Brian






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Subject: [parisc-linux] Compile-Error with linux-2.6 and harmony
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Hi there,

I tried to compile the latest kernel  from CVS with OSS harmony enabled, 
but at first I got a compiler warning and afterwards a linker error:

    ---------------><------------
      LD      sound/oss/sound.o
      CC      sound/oss/harmony.o
    sound/oss/harmony.c: In function `harmony_driver_callback':
    sound/oss/harmony.c:1237: Warnung: implicit declaration of function
    `ccio_get_fake'
    sound/oss/harmony.c:1237: Warnung: assignment makes pointer from
    integer without a cast
      LD      sound/oss/built-in.o
      .....
     UPD     include/linux/compile.h
      CC      init/version.o
      LD      init/built-in.o
      LD      .tmp_vmlinux1
    sound/built-in.o: In function `harmony_driver_callback':
    sound/built-in.o(.init.text+0x3a0): undefined reference to
    `ccio_get_fake'
    make: *** [.tmp_vmlinux1] Fehler 1
    ---------------><------------

I thought that only the alsa harmony driver makes trouble when linking? 
I also can't find this function "ccio_get_fake" anywhere.
I'm running debian testing with gcc-3.3.1 and binutils 2.12.90.
TIA, Ruediger



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Subject: Re: [parisc-linux] Compile-Error with linux-2.6 and harmony
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Le lundi, 22 sep 2003, =E0 15:30 Europe/Paris, Ruediger Scholz a =E9crit =
:

> Hi there,
>
> I tried to compile the latest kernel  from CVS with OSS harmony=20
> enabled, but at first I got a compiler warning and afterwards a linker=20=

> error:
>

this

>    ---------------><------------
>      LD      sound/oss/sound.o
>      CC      sound/oss/harmony.o
>    sound/oss/harmony.c: In function `harmony_driver_callback':
>    sound/oss/harmony.c:1237: Warnung: implicit declaration of function
>    `ccio_get_fake'
>    sound/oss/harmony.c:1237: Warnung: assignment makes pointer from
>    integer without a cast

has nothing to do with this:

>
>    sound/built-in.o: In function `harmony_driver_callback':
>    sound/built-in.o(.init.text+0x3a0): undefined reference to
>    `ccio_get_fake'
>    make: *** [.tmp_vmlinux1] Fehler 1


>
> I thought that only the alsa harmony driver makes trouble when=20
> linking? I also can't find this function "ccio_get_fake" anywhere.

yeah that's known. ALSA Harmony won't link at the moment. Be patient,=20
this will be fixed ;)


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=




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On Mon, Sep 22, 2003 at 03:40:41PM +0200, Thibaut VARNE wrote:
> >   sound/oss/harmony.c:1237: Warnung: implicit declaration of function
> >   `ccio_get_fake'
> 
> has nothing to do with this:
> 
> >   sound/built-in.o(.init.text+0x3a0): undefined reference to
> >   `ccio_get_fake'

Yes it does.  The function no longer exists, so there's no prototype
for it.  OSS harmony needs to get fixed to use the parisc_device and
the generic DMA mapping stuff.

> >I thought that only the alsa harmony driver makes trouble when 
> >linking? I also can't find this function "ccio_get_fake" anywhere.
> 
> yeah that's known. ALSA Harmony won't link at the moment. Be patient, 
> this will be fixed ;)

The ALSA harmony doesn't work either, and for similar reasons, though
it'll be harder to fix.  Basically, ALSA has to get converted to
the generic DMA mapping model rather than being so bus-type centric.
And that's a huge job because ALSA is a complete disgrace to humanity.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] Problem with SCSI_IOCTL_GET_PCI ioctl
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Hi All,

I found a problem with ioctl SCSI_IOCTL_GET_PCI. This ioctl returns the slot
name. I got the following error upon using this ioctl. The program can
reproduce this error. This problems is not there on IA64 kernels.

		sys32_ioctl: Unknown cmd fd(3) cmd(00005387) arg(faf00370)

I found this problem in the kernel version 2.4.20-pa18 and was able to
reproduce the problem on 2.4.22-pa3. I am not sure if this problem is fixed
yet in 2.6.X 

This error can be reproduced using the following program.

/*BEGIN PROGRAM*/

#include <stdio.h>
#include <fcntl.h>
main ()
{
        int tst;

        struct file *fd;
typedef struct sg_scsi_id { 
    int host_no;        
    int channel;
    int scsi_id;        
    int lun;
    int scsi_type;     
    short h_cmd_per_lun;
    short d_queue_depth;
    int unused[2];      
} sg_scsi_id_t; 

struct sg_scsi_id sg_info;

char slot_name[16];

fd=open("/dev/sg0",O_RDWR);
printf("fd=%d\n",fd);
        tst=ioctl(fd, 0x2276, &sg_info);
        printf("return from GET_SCSI_ID=%d\n",tst);
        tst=ioctl(fd, 0x5387, slot_name);
        printf("return from SCSI_IOCTL_GET_PCI=%d, %s\n",tst,slot_name);
}

/* END PROGRAM */

Kernel:
oak:/home/sranjith# uname -a
Linux oak 2.4.22-pa3 #1 Thu Sep 18 23:19:58 IST 2003 parisc64 unknown

Output after running the program:
oak:/home/sranjith# ./a.out
fd=3
return from GET_SCSI_ID=0
sys32_ioctl: Unknown cmd fd(3) cmd(00005387) arg(faf00370)
return from SCSI_IOCTL_GET_PCI=-1, 

I traced this error down to ioctl32.c line no. ~ 3056 to 3063

/* Big S */
COMPATIBLE_IOCTL(SCSI_IOCTL_GET_IDLUN)
COMPATIBLE_IOCTL(SCSI_IOCTL_DOORLOCK)
COMPATIBLE_IOCTL(SCSI_IOCTL_DOORUNLOCK)
COMPATIBLE_IOCTL(SCSI_IOCTL_TEST_UNIT_READY)
COMPATIBLE_IOCTL(SCSI_IOCTL_TAGGED_ENABLE)
COMPATIBLE_IOCTL(SCSI_IOCTL_TAGGED_DISABLE)
COMPATIBLE_IOCTL(SCSI_IOCTL_GET_BUS_NUMBER)
COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND)
COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI) 		/*This entry is missing in
the ioctl translation table*/
/* Big V */
COMPATIBLE_IOCTL(VT_SETMODE)
COMPATIBLE_IOCTL(VT_GETMODE)
COMPATIBLE_IOCTL(VT_GETSTATE)
COMPATIBLE_IOCTL(VT_OPENQRY)

The above entry fixed the problem. I am surprised that ioctls code wasn't
tested. When I see the code. This seems to be the last ioctl which was
added.

I am not sure if I should post this here, please let me know if I am wrong.


with warm regards,
Ranjith Sudarsanan

--------------------------------------
Ranjith Sudarsanan
Rage Team
30CA, Cunningham Road
Bangalore
Off: 91-80-205 3190
Res: 91-80-522 2577 
web: http://nt2651.india.hp.com:8080/ <http://nt2651.india.hp.com:8080/> 
--------------------------------------
"When the head bows, it meets the heart and that head which has met the
heart gets the crown!!! - Sri Sri"


------_=_NextPart_001_01C3812C.C6304B46
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2655.35">
<TITLE>Problem with SCSI_IOCTL_GET_PCI ioctl</TITLE>
</HEAD>
<BODY>

<P><FONT SIZE=3D2 FACE=3D"Arial">Hi All,</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">I found a problem with ioctl =
SCSI_IOCTL_GET_PCI. This ioctl returns the slot name. I got the =
following error upon using this ioctl. The program can reproduce this =
error. This problems is not there on IA64 kernels.</FONT></P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B><I> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</I></B><I></I> <FONT =
COLOR=3D"#FF0000" SIZE=3D2 FACE=3D"Arial">sys32_ioctl: Unknown cmd =
fd(3) cmd(00005387) arg(faf00370)</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">I found this problem in the kernel =
version 2.4.20-pa18 and was able to reproduce the problem on =
2.4.22-pa3. I am not sure if this problem is fixed yet in 2.6.X =
</FONT></P>

<P><FONT SIZE=3D2 FACE=3D"Arial">This error can be reproduced using the =
following program.</FONT>
</P>

<P><B><FONT SIZE=3D2 FACE=3D"Arial">/*BEGIN PROGRAM*/</FONT></B>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">#include &lt;stdio.h&gt;</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">#include &lt;fcntl.h&gt;</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">main ()</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">{</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int =
tst;</FONT>
</P>

<P><FONT SIZE=3D2 =
FACE=3D"Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct file =
*fd;</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">typedef struct sg_scsi_id { </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp;&nbsp; int =
host_no;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp;&nbsp; int =
channel;</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp;&nbsp; int =
scsi_id;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp;&nbsp; int lun;</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp;&nbsp; int =
scsi_type;&nbsp;&nbsp;&nbsp;&nbsp; </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp;&nbsp; short =
h_cmd_per_lun;</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp;&nbsp; short =
d_queue_depth;</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;&nbsp;&nbsp; int =
unused[2];&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">} sg_scsi_id_t; </FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">struct sg_scsi_id sg_info;</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">char slot_name[16];</FONT>
</P>

<P><FONT SIZE=3D2 =
FACE=3D"Arial">fd=3Dopen(&quot;/dev/sg0&quot;,O_RDWR);</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">printf(&quot;fd=3D%d\n&quot;,fd);</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
tst=3Dioctl(fd, 0x2276, &amp;sg_info);</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
printf(&quot;return from GET_SCSI_ID=3D%d\n&quot;,tst);</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
tst=3Dioctl(fd, 0x5387, slot_name);</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
printf(&quot;return from SCSI_IOCTL_GET_PCI=3D%d, =
%s\n&quot;,tst,slot_name);</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">}</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">/*</FONT><B><FONT SIZE=3D2 =
FACE=3D"Arial"> END PROGRAM</FONT></B> <FONT SIZE=3D2 =
FACE=3D"Arial">*/</FONT>
</P>

<P><B><FONT SIZE=3D2 FACE=3D"Arial">Kernel:</FONT></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">oak:/home/sranjith# uname -a</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Linux oak 2.4.22-pa3 #1 Thu Sep 18 =
23:19:58 IST 2003 parisc64 unknown</FONT>
</P>

<P><B><FONT SIZE=3D2 FACE=3D"Arial">Output after running the =
program:</FONT></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">oak:/home/sranjith# ./a.out</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">fd=3D3</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">return from GET_SCSI_ID=3D0</FONT>
<BR><FONT COLOR=3D"#FF0000" SIZE=3D2 FACE=3D"Arial">sys32_ioctl: =
Unknown cmd fd(3) cmd(00005387) arg(faf00370)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">return from SCSI_IOCTL_GET_PCI=3D-1, =
</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">I traced this error down to</FONT><B> =
<FONT COLOR=3D"#FF00FF" SIZE=3D2 =
FACE=3D"Arial">ioctl32.c</FONT></B><FONT SIZE=3D2 FACE=3D"Arial"> line =
no. ~ 3056 to 3063</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">/* Big S */</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">COMPATIBLE_IOCTL(SCSI_IOCTL_GET_IDLUN)</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">COMPATIBLE_IOCTL(SCSI_IOCTL_DOORLOCK)</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">COMPATIBLE_IOCTL(SCSI_IOCTL_DOORUNLOCK)</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">COMPATIBLE_IOCTL(SCSI_IOCTL_TEST_UNIT_READY)</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">COMPATIBLE_IOCTL(SCSI_IOCTL_TAGGED_ENABLE)</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">COMPATIBLE_IOCTL(SCSI_IOCTL_TAGGED_DISABLE)</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">COMPATIBLE_IOCTL(SCSI_IOCTL_GET_BUS_NUMBER)</FONT>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND)</FONT>
<BR><B><I><FONT COLOR=3D"#FF00FF" SIZE=3D2 =
FACE=3D"Arial">COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI) &nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /*This entry is missing in =
the ioctl translation table*/</FONT></I></B>
<BR><FONT SIZE=3D2 FACE=3D"Arial">/* Big V */</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">COMPATIBLE_IOCTL(VT_SETMODE)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">COMPATIBLE_IOCTL(VT_GETMODE)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">COMPATIBLE_IOCTL(VT_GETSTATE)</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">COMPATIBLE_IOCTL(VT_OPENQRY)</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">The above entry fixed the problem. I =
am surprised that ioctls code wasn't tested. When I see the code. This =
seems to be the last ioctl which was added.</FONT></P>

<P><FONT SIZE=3D2 FACE=3D"Arial">I am not sure if I should post this =
here, please let me know if I am wrong.</FONT>
</P>
<BR>

<P><FONT SIZE=3D2 FACE=3D"Arial">with warm regards,</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Ranjith Sudarsanan</FONT>
</P>

<P><FONT SIZE=3D2 =
FACE=3D"Arial">--------------------------------------</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Ranjith Sudarsanan</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Rage</FONT><FONT SIZE=3D2 =
FACE=3D"Arial"> Team</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">30CA, Cunningham Road</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Bangalore</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Off: 91-80-205</FONT> <FONT SIZE=3D2 =
FACE=3D"Arial">3190</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Res: 91-80-522 2577 </FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">web: </FONT><A =
HREF=3D"http://nt2651.india.hp.com:8080/"><U><FONT COLOR=3D"#0000FF" =
SIZE=3D2 FACE=3D"Arial">http://nt2651.india.hp.com:8080/</FONT></U></A>
<BR><FONT SIZE=3D2 =
FACE=3D"Arial">--------------------------------------</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">&quot;</FONT><FONT SIZE=3D2 =
FACE=3D"Arial">When the head bows, it meets the heart and that =
head</FONT> <FONT SIZE=3D2 FACE=3D"Arial">w</FONT><FONT SIZE=3D2 =
FACE=3D"Arial">hich has</FONT><FONT SIZE=3D2 FACE=3D"Arial"></FONT> =
<FONT SIZE=3D2 FACE=3D"Arial">met</FONT><FONT SIZE=3D2 =
FACE=3D"Arial"></FONT> <FONT SIZE=3D2 FACE=3D"Arial">the heart gets the =
crown!!!</FONT><FONT SIZE=3D2 FACE=3D"Arial"> - Sri Sri&quot;</FONT>
</P>

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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Problem with SCSI_IOCTL_GET_PCI ioctl
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On Mon, Sep 22, 2003 at 10:43:00PM +0530, SUDARSANAN,RANJITH (HP-India,ex2) wrote:
> I traced this error down to ioctl32.c line no. ~ 3056 to 3063
> 
> /* Big S */
> COMPATIBLE_IOCTL(SCSI_IOCTL_GET_IDLUN)
> COMPATIBLE_IOCTL(SCSI_IOCTL_DOORLOCK)
> COMPATIBLE_IOCTL(SCSI_IOCTL_DOORUNLOCK)
> COMPATIBLE_IOCTL(SCSI_IOCTL_TEST_UNIT_READY)
> COMPATIBLE_IOCTL(SCSI_IOCTL_TAGGED_ENABLE)
> COMPATIBLE_IOCTL(SCSI_IOCTL_TAGGED_DISABLE)
> COMPATIBLE_IOCTL(SCSI_IOCTL_GET_BUS_NUMBER)
> COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND)
> COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI) 		/*This entry is missing in
> the ioctl translation table*/
> /* Big V */
> COMPATIBLE_IOCTL(VT_SETMODE)
> COMPATIBLE_IOCTL(VT_GETMODE)
> COMPATIBLE_IOCTL(VT_GETSTATE)
> COMPATIBLE_IOCTL(VT_OPENQRY)
> 
> The above entry fixed the problem. I am surprised that ioctls code wasn't
> tested. When I see the code. This seems to be the last ioctl which was
> added.
> 
> I am not sure if I should post this here, please let me know if I am wrong.

Right place to post it, right fix.  Patch committed as 2.4.22-pa8.
Could you send it in the form of a unified diff next time?  eg:

cvs diff -u arch/parisc/kernel/ioctl32.c

Thanks.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Jacek Chmielewski <jchmiel@kti.ae.poznan.pl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] PALO do not start!
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Hi

I managed to install Debian on my HP 9000/J200 box (I used DHCP server and
netinstall lifimage). The installation procedure passed without problems. I
created three partitions:
/dev/sda1  *  1    4    16461  f0  Linux/PA-RISC boot
/dev/sda2     5   34   123690  82  Linux swap
/dev/sda3  * 35  277  1001889  83  Linux

After the reboot I get the following result:

Booting...
Boot IO Dependent Code (IODC) revision 1
HARD Booted.

... and everything nothing happens. I assume that I should see PALO
starting from the /dev/sda1 partition, but it don't want to start.

What could be possibly wrong?
Is there any solution or workaround for this problem?

Best regards
  Jacek




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From: dub@latnet.lv
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Subject: [parisc-linux] System hangs after SCSI problems
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Hi,

I run Debian vmlinux-parisc-2.4.20-32-smp on K210. Not recently I faced a
strange hang situation. Host stopped responding both from network and console, 
ethernet port remained up on link level. In syslog.log and kernel.log I see scsi
problems.

After restarting all disks are OK (one of mirror partitions was resynced manually). 

Thank you in advance for any comments!

BR,
Dub

syslog.log

Sep 22 18:00:32 myhost4 kernel: scsi : aborting command due to timeout : pid
10399653, scsi1, chann
el 0, id 2, lun 0 Write (10) 00 00 d0 db 90 00 00 08 00
Sep 22 18:00:34 myhost4 kernel: ncr53c8xx_abort: pid=10399653
serial_number=10399664 serial_number_
at_timeout=10399664
Sep 22 18:00:34 myhost4 kernel: SCSI host 1 abort (pid 10399653) timed out -
resetting
Sep 22 18:00:34 myhost4 kernel: SCSI bus is being reset for host 1 channel 0.
Sep 22 18:00:34 myhost4 kernel: ncr53c8xx_reset: pid=10399653 reset_flags=2
serial_number=10399664
serial_number_at_timeout=10399664
Sep 22 18:00:35 myhost4 kernel: ncr53c720-1-<2,*>: FAST-10 WIDE SCSI 20.0 MB/s
(100 ns, offset 8)
Sep 22 18:00:35 myhost4 kernel: ncr53c720-1-<1,*>: FAST-10 WIDE SCSI 20.0 MB/s
(100 ns, offset 8)
Sep 22 18:00:35 myhost4 kernel: ncr53c720-1-<4,*>: FAST-10 WIDE SCSI 20.0 MB/s
(100 ns, offset 8)
Sep 22 18:03:35 myhost4 kernel: ncr53c720-1-<3,*>: FAST-10 WIDE SCSI 20.0 MB/s
(100 ns, offset 8)


kernel.log

Sep 22 17:53:18 myhost4 kernel: scsi : aborting command due to timeout : pid
10397795, scsi1, chann
el 0, id 1, lun 0 Write (10) 00 00 93 2c 60 00 00 18 00 
Sep 22 17:53:18 myhost4 kernel: ncr53c8xx_abort: pid=10397795
serial_number=10397806 serial_number_
at_timeout=10397806
Sep 22 17:53:18 myhost4 kernel: scsi : aborting command due to timeout : pid
10397797, scsi1, chann
el 0, id 2, lun 0 Write (10) 00 00 d0 e4 00 00 00 08 00 
Sep 22 17:53:18 myhost4 kernel: ncr53c8xx_abort: pid=10397797
serial_number=10397808 serial_number_
at_timeout=10397808
Sep 22 17:53:18 myhost4 kernel: scsi : aborting command due to timeout : pid
10397798, scsi1, chann
el 0, id 2, lun 0 Write (10) 00 00 d0 e4 10 00 00 08 00 
Sep 22 17:53:18 myhost4 kernel: ncr53c8xx_abort: pid=10397798
serial_number=10397809 serial_number_
at_timeout=10397809
Sep 22 17:53:18 myhost4 kernel: ncr53c720-1: abort ccb=4f319000 (cancel)
Sep 22 17:53:18 myhost4 kernel: scsi : aborting command due to timeout : pid
10397803, scsi1, chann
el 0, id 2, lun 0 Write (10) 00 00 d0 e6 20 00 00 08 00 
Sep 22 17:53:18 myhost4 kernel: ncr53c8xx_abort: pid=10397803
serial_number=10397814 serial_number_
at_timeout=10397814
Sep 22 17:53:18 myhost4 kernel: ncr53c720-1: abort ccb=4d7a4800 (cancel)
Sep 22 17:53:19 myhost4 kernel: scsi : aborting command due to timeout : pid
10397804, scsi1, chann
el 0, id 4, lun 0 Write (10) 00 00 00 09 2e 00 00 08 00 
Sep 22 17:53:19 myhost4 kernel: ncr53c8xx_abort: pid=10397804
serial_number=10397815 serial_number_
at_timeout=10397815
Sep 22 17:53:19 myhost4 kernel: ncr53c720-1: abort ccb=3cb4f800 (cancel)
Sep 22 17:53:19 myhost4 kernel: scsi : aborting command due to timeout : pid
10397805, scsi1, chann
el 0, id 1, lun 0 Write (10) 00 00 11 ec d8 00 00 08 00 
Sep 22 17:53:19 myhost4 kernel: ncr53c8xx_abort: pid=10397805
serial_number=10397816 serial_number_
at_timeout=10397816
Sep 22 17:53:19 myhost4 kernel: ncr53c720-1: abort ccb=4fb1d000 (cancel)
Sep 22 17:53:19 myhost4 kernel: SCSI host 1 abort (pid 10397795) timed out -
resetting
Sep 22 17:53:19 myhost4 kernel: SCSI bus is being reset for host 1 channel 0.
Sep 22 17:53:19 myhost4 kernel: ncr53c8xx_reset: pid=10397795 reset_flags=2
serial_number=10397806 
serial_number_at_timeout=10397806
Sep 22 17:53:19 myhost4 kernel: ncr53c720-1-<3,*>: FAST-10 WIDE SCSI 20.0 MB/s
(100 ns, offset 8)
Sep 22 17:53:19 myhost4 kernel: ncr53c720-1-<4,*>: FAST-10 WIDE SCSI 20.0 MB/s
(100 ns, offset 8)
Sep 22 17:53:19 myhost4 kernel: ncr53c720-1-<1,*>: FAST-10 WIDE SCSI 20.0 MB/s
(100 ns, offset 8)
Sep 22 17:53:19 myhost4 kernel: ncr53c720-1-<2,*>: FAST-10 WIDE SCSI 20.0 MB/s
(100 ns, offset 8)
Sep 22 18:00:32 myhost4 kernel: scsi : aborting command due to timeout : pid
10399653, scsi1, chann
el 0, id 2, lun 0 Write (10) 00 00 d0 db 90 00 00 08 00 
Sep 22 18:00:34 myhost4 kernel: ncr53c8xx_abort: pid=10399653
serial_number=10399664 serial_number_
at_timeout=10399664
Sep 22 18:00:34 myhost4 kernel: SCSI host 1 abort (pid 10399653) timed out -
resetting
Sep 22 18:00:34 myhost4 kernel: SCSI bus is being reset for host 1 channel 0.
Sep 22 18:00:34 myhost4 kernel: ncr53c8xx_reset: pid=10399653 reset_flags=2
serial_number=10399664 
serial_number_at_timeout=10399664



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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Backport tausq patch
Date: Wed, 24 Sep 2003 18:45:01 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:19584

Hi Randolph and all,

Here is the backport of your 2.6 patch:
--- pgalloc.h.orig	2003-09-24 18:35:25.000000000 +0200
+++ pgalloc.h	2003-09-24 18:35:06.000000000 +0200
@@ -124,8 +124,9 @@
 
 #define flush_icache_page(vma,page)	do { flush_kernel_dcache_page(page_address(page));
flush_kernel_icache_page(page_address(page)); } while (0)
 
-#define flush_icache_user_range(vma, page, addr, len) \
-	flush_user_icache_range(addr, addr + len);
+#define flush_icache_user_range(vma, page, addr, len) do { \
+        flush_user_dcache_range(addr, addr + len); \
+	flush_user_icache_range(addr, addr + len); } while (0)
 
 #define flush_icache_range(s,e)		do { flush_kernel_dcache_range_asm(s,e);
flush_kernel_icache_range_asm(s,e); } while (0)

I test it successfully with 32 and 64 (UP) kernels.
Don't know yet if it will help SMP boot of the N (I will test tomorrow)

hth,
    Joel



-------------------------------------------------------------------------
L'Internet rapide, c'est pour tout le monde. Tiscali ADSL, 19,50 Euro
pendant 3 mois! http://reg.tiscali.be/default.asp?lg=fr 




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On Wed, 2003-09-24 at 12:54, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	03/09/24 11:54:31
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: signal.c 
> 	include/asm-parisc: rt_sigframe.h 
> 
> Log message:
> Make signals work with ELF64 binaries
> 
> For those who want to try this at home, there's a mini test suite at
> http://www.parisc-linux.org/~jejb/64bit.tar.gz
> 
> NOTE: The signal handler has become really ugly.  However, since it's
> completely broken for context returns with ELF32 binaries on ELF64 kernels
> there didn't seem to be a lot of point making it nicer until we tackle that
> problem as well

Index: arch/parisc/kernel/signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/signal.c,v
retrieving revision 1.10
diff -u -r1.10 signal.c
--- arch/parisc/kernel/signal.c	19 Sep 2003 01:03:56 -0000	1.10
+++ arch/parisc/kernel/signal.c	24 Sep 2003 17:50:48 -0000
@@ -26,6 +26,7 @@
 #include <linux/stddef.h>
 #include <linux/compat.h>
 #include <linux/elf.h>
+#include <linux/personality.h>
 #include <asm/ucontext.h>
 #include <asm/rt_sigframe.h>
 #include <asm/uaccess.h>
@@ -170,11 +171,17 @@
 	struct rt_sigframe *frame;
 	struct siginfo si;
 	sigset_t set;
-	unsigned long usp = regs->gr[30];
+	unsigned long usp = (regs->gr[30] & ~(0x01UL));
+	unsigned long sigframe_size = PARISC_RT_SIGFRAME_SIZE;
+#ifdef __LP64__
+	if(personality(current->personality) == PER_LINUX32)
+		sigframe_size = PARISC_RT_SIGFRAME_SIZE32;
+#endif
+
 
 	/* Unwind the user stack to get the rt_sigframe structure. */
 	frame = (struct rt_sigframe *)
-		(usp - PARISC_RT_SIGFRAME_SIZE);
+		(usp - sigframe_size);
 	DBG(("in sys_rt_sigreturn, frame is %p\n", frame));
 
 	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
@@ -276,11 +283,11 @@
 {
 	struct rt_sigframe *frame;
 	unsigned long rp, usp;
-	Elf32_Addr haddr;
+	unsigned long haddr, sigframe_size;
 	struct siginfo si;
 	int err = 0;
 
-	usp = regs->gr[30];
+	usp = (regs->gr[30] & ~(0x01UL));
 	frame = get_sigframe(ka, usp, sizeof(*frame));
 
 	DBG(("setup_rt_frame 1: frame %p info %p\n", frame, info));
@@ -325,25 +332,59 @@
 
 	haddr = A(ka->sa.sa_handler);
 	/* The sa_handler may be a pointer to a function descriptor */
-	if (haddr & PA_PLABEL_FDESC) {
-		Elf32_Fdesc fdesc;
-		Elf32_Fdesc *ufdesc = (Elf32_Fdesc *)A(haddr & ~3);
+#ifdef __LP64__
+	if(personality(current->personality) == PER_LINUX32) {
+#endif
+		if (haddr & PA_PLABEL_FDESC) {
+			Elf32_Fdesc fdesc;
+			Elf32_Fdesc *ufdesc = (Elf32_Fdesc *)A(haddr & ~3);
 
-		err = __copy_from_user(&fdesc, ufdesc, sizeof(fdesc));
+			err = __copy_from_user(&fdesc, ufdesc, sizeof(fdesc));
+
+			if (err)
+				goto give_sigsegv;
 
+			haddr = fdesc.addr;
+			regs->gr[19] = fdesc.gp;
+		}
+#ifdef __LP64__
+	} else {
+		Elf64_Fdesc fdesc;
+		Elf64_Fdesc *ufdesc = (Elf64_Fdesc *)A(haddr & ~3);
+		
+		err = __copy_from_user(&fdesc, ufdesc, sizeof(fdesc));
+		
 		if (err)
 			goto give_sigsegv;
-
+		
 		haddr = fdesc.addr;
 		regs->gr[19] = fdesc.gp;
+		DBG(("64 bit signal, exe=%#lx, r19=%#lx, in_syscall=%d\n",
+		     haddr, regs->gr[19], in_syscall));
 	}
+#endif
 
 	/* The syscall return path will create IAOQ values from r31.
 	 */
-	if (in_syscall)
+	sigframe_size = PARISC_RT_SIGFRAME_SIZE;
+#ifdef __LP64__
+	if(personality(current->personality) == PER_LINUX32)
+		sigframe_size = PARISC_RT_SIGFRAME_SIZE32;
+#endif
+	if (in_syscall) {
 		regs->gr[31] = haddr;
-	else {
-		regs->gr[0] = USER_PSW;
+#ifdef __LP64__
+		if(personality(current->personality) == PER_LINUX)
+			sigframe_size |= 1;
+#endif
+	} else {
+		unsigned long psw = USER_PSW;
+#ifdef __LP64__
+		if(personality(current->personality) == PER_LINUX)
+			psw |= PSW_W;
+#endif
+
+		regs->gr[0] = psw;
 		regs->iaoq[0] = haddr | 3;
 		regs->iaoq[1] = regs->iaoq[0] + 4;
 	}
@@ -352,11 +393,13 @@
 	regs->gr[26] = sig;               /* signal number */
 	regs->gr[25] = A(&frame->info); /* siginfo pointer */
 	regs->gr[24] = A(&frame->uc);   /* ucontext pointer */
+	
 	DBG(("making sigreturn frame: %#lx + %#x = %#lx\n",
-	       regs->gr[30], PARISC_RT_SIGFRAME_SIZE,
-	       regs->gr[30] + PARISC_RT_SIGFRAME_SIZE));
+	       regs->gr[30], sigframe_size,
+	       regs->gr[30] + sigframe_size));
 	/* Raise the user stack pointer to make a proper call frame. */
-	regs->gr[30] = (A(frame) + PARISC_RT_SIGFRAME_SIZE);
+	regs->gr[30] = (A(frame) + sigframe_size);
+
 
 	DBG(("SIG deliver (%s:%d): frame=0x%p sp=%#lx iaoq=%#lx/%#lx rp=%#lx\n",
 	       current->comm, current->pid, frame, regs->gr[30],
Index: include/asm-parisc/rt_sigframe.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/rt_sigframe.h,v
retrieving revision 1.1
diff -u -r1.1 rt_sigframe.h
--- include/asm-parisc/rt_sigframe.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/rt_sigframe.h	24 Sep 2003 17:51:16 -0000
@@ -13,7 +13,20 @@
  * which Linux/parisc uses is sp-20 for the saved return pointer...)
  * Then, the stack pointer must be rounded to a cache line (64 bytes).
  */
+#define SIGFRAME32		64
+#define FUNCTIONCALLFRAME32	48
+#define PARISC_RT_SIGFRAME_SIZE32					\
+	(((sizeof(struct rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
+
+#ifdef __LP64__
+#define	SIGFRAME		128
+#define FUNCTIONCALLFRAME	96
 #define PARISC_RT_SIGFRAME_SIZE					\
-	(((sizeof(struct rt_sigframe) + 48) + 63) & -64)
+	(((sizeof(struct rt_sigframe) + FUNCTIONCALLFRAME) + SIGFRAME) & -SIGFRAME)
+#else
+#define	SIGFRAME		SIGFRAME32
+#define FUNCTIONCALLFRAME	FUNCTIONCALLFRAME32
+#define PARISC_RT_SIGFRAME_SIZE	PARISC_RT_SIGFRAME_SIZE32
+#endif
 
 #endif



From - Thu Nov 08 21:29:17 2018
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From: Khalid Aziz <khalid@fc.hp.com>
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Subject: [parisc-linux] [PATCH] do_gettimeofday() fails to compensate for lost ticks
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I saw this problem on ia64 and when I checked parisc code, it also seems
to have the same problem. 

do_gettimeofday() needs to account for lost ticks before returning
current time and it fails to do that. do_gettimeofday() on other 
architectures compensate for lost ticks correctly. Due to this bug, if
you repeatedly do clock_settime() immediately followed by clock_gettime() 
and compare the time returned by clock_gettime() to the time set by
clock_settime(), you will eventually see clock going backwards. I am
attaching a test program from POSIX testsuite at the end that exposes
this bug. Run this test in a continuous loop that stops when test fails.

Following patch should address this issue.

--
Khalid


=============================
--- linux-2.4.22/arch/parisc/kernel/time.c	Thu Nov 28 16:53:10 2002
+++ linux-2.4.22-clock_fix/arch/parisc/kernel/time.c	Wed Sep 24 11:25:34 2003
@@ -166,6 +166,7 @@
 	
 		sec = xtime.tv_sec;
 		usec += xtime.tv_usec;
+		usec += (jiffies - wall_jiffies) * (1000000 / HZ);
 	}
 	read_unlock_irqrestore(&xtime_lock, flags);
 

==============================
/*   
 * Copyright (c) 2002, Intel Corporation. All rights reserved.
 * Created by:  julie.n.fleischer REMOVE-THIS AT intel DOT com
 * This file is licensed under the GPL license.  For the full content
 * of this license, see the COPYING file at the top level of this 
 * source tree.

 * Test that clock_settime() sets clock_id to tp.
 *
 * The clock_id chosen for this test is CLOCK_REALTIME.
 * The date chosen is Nov 12, 2002 ~11:13am (date when test was first
 * written).
 */
#include <stdio.h>
#include <time.h>
/*#include "posixtest.h"
#include "helpers.h"*/

#define TESTTIME 1037128358
#define ACCEPTABLEDELTA 1
#define PTS_UNRESOLVED 2
#define PTS_PASS 0
#define PTS_FAIL 1

int getBeforeTime(struct timespec *tpget)
{
	if (clock_gettime(CLOCK_REALTIME, tpget) != 0) {
		perror("clock_gettime() did not return success\n");
		perror("clock may not be reset properly\n");
		return PTS_UNRESOLVED;
	}
	return PTS_PASS;
}

int setBackTime(struct timespec tpset)
{
	if (clock_settime(CLOCK_REALTIME, &tpset) != 0) {
		perror("clock_settime() did not return success\n");
		perror("clock may not be reset properly\n");
		return PTS_UNRESOLVED;
	}
	return PTS_PASS;
}

int main(int argc, char *argv[])
{
	struct timespec tpset, tpget, tpreset;
	int delta;

	getBeforeTime(&tpreset);

	tpset.tv_sec = TESTTIME;
	tpset.tv_nsec = 0;
	if (clock_settime(CLOCK_REALTIME, &tpset) == 0) {
		if (clock_gettime(CLOCK_REALTIME, &tpget) == -1) {
			perror("Error in clock_gettime()");
			return 2;
		}
		delta = tpget.tv_sec-tpset.tv_sec;
		if ( (delta <= ACCEPTABLEDELTA) && (delta >= 0) ) {
			printf("Test PASSED\n");
			setBackTime(tpreset);
			return 0;
		} else {
			printf("delta = %d, tpget=%d,%d, tpset=%d,%d\n", delta, tpget.tv_sec, tpget.tv_nsec, tpset.tv_sec, tpset.tv_nsec);
			printf("clock does not appear to be set\n");
			setBackTime(tpreset);
			return 1;
		}
	} else {
		printf("clock_settime() failed\n");
		return 2;
	}

	printf("This code should not be executed.\n");
	return 2;
}


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Subject: [parisc-linux] Re: [PATCH] do_gettimeofday() fails to compensate for lost ticks
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Turns out the problem is not do_gettimeofday() not accounting for lost
ticks, rather it is do_settimeofday() double compensating for lost
ticks. Here is a patch to fix this problem.

---
Khalid

=========================
--- linux-2.4.22/arch/parisc/kernel/time.c	Thu Nov 28 16:53:10 2002
+++ linux-2.4.22-clock_fix/arch/parisc/kernel/time.c	Wed Sep 24 12:58:36 2003
@@ -191,7 +191,6 @@
 		 * done, and then undo it!
 		 */
 		tv->tv_usec -= gettimeoffset();
-		tv->tv_usec -= (jiffies - wall_jiffies) * (1000000 / HZ);
 
 		while (tv->tv_usec < 0) {
 			tv->tv_usec += 1000000;





> I saw this problem on ia64 and when I checked parisc code, it also seems
> to have the same problem. 
> 
> do_gettimeofday() needs to account for lost ticks before returning
> current time and it fails to do that. do_gettimeofday() on other 
> architectures compensate for lost ticks correctly. Due to this bug, if
> you repeatedly do clock_settime() immediately followed by clock_gettime() 
> and compare the time returned by clock_gettime() to the time set by
> clock_settime(), you will eventually see clock going backwards. I am
> attaching a test program from POSIX testsuite at the end that exposes
> this bug. Run this test in a continuous loop that stops when test fails.
> 
> Following patch should address this issue.
> 
> --
> Khalid
> 


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On Wednesday 24 September 2003 10:12 pm, Ned Darling wrote:
 - - - snipped - - -
Folks,
Will this be a system function incorporated in the 2.6 kernel?
Mike


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On Wed, Sep 24, 2003 at 01:59:20PM -0500, Michael S. Zick wrote:
> Will this be a system function incorporated in the 2.6 kernel?

no, you're going to have to go outside.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Wednesday 24 September 2003 02:14 pm, Matthew Wilcox wrote:
> On Wed, Sep 24, 2003 at 01:59:20PM -0500, Michael S. Zick wrote:
> > Will this be a system function incorporated in the 2.6 kernel?
>
> no, you're going to have to go outside.
Not even as an optional, plug-in module?


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On Mer, 2003-09-24 at 20:15, Michael S.Zick wrote:
> On Wednesday 24 September 2003 02:14 pm, Matthew Wilcox wrote:
> > On Wed, Sep 24, 2003 at 01:59:20PM -0500, Michael S. Zick wrote:
> > > Will this be a system function incorporated in the 2.6 kernel?
> >
> > no, you're going to have to go outside.
> Not even as an optional, plug-in module?

Not for this system as it lacks USB

http://www.sleeplessknights.com/Pages/ipix.html

(The movies are a hoot)



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On Fri, Sep 12, 2003 at 04:43:28PM -0700, Jeremy Drake wrote:
> This is about using the dhcp server in win2k server to net boot a parisc 
> box.

Jeremy,
Thanks again for the first version.
I've reformatted and rewrote bits of it.
Things with [ ] around them mean a step or info is missing.
Can you please review if any additional steps are missing and
fill in missing bits you know about?

Anyone else know if tftpf32 can be run as a service under win2k?

I'll add HTML markup when I'm ready to link it into our FAQ.

thanks,
grant

------------------------ HOWTO.win2k_bootp -------------------

Get the MAC address from the PARISC workstation
-----------------------------------------------
o Power on the box
o stop the auto boot when "press any key to stop boot" is printed
o At the BOOT_ADMIN> prompt, type "in la" and hit enter. 
o record the printed hex number (your workstation's MAC address).
o leave the workstation power on...get back to it in a bit.

[ How/Where to get a lifimage? Needed below ]


Enable DHCP server in Win2k
---------------------------
o Start DHCP server:
	Control Panel, Add/remove programs, Windows components,
   	Networking Services, Dynamic Host Configuration Protocol (DHCP)

o Start up the DHCP admin tool:
	Start, Settings, Control Panel, Admin Tools, DHCP

o Expand [ double click? ] your server in the tree
o right click on Reservations.
o Select "New Reservation..."
o For reservation name, I put my workstation's host name.
o enter an unused IP address
o enter the PARISC workstation's mac address (no delimiters,
  just the hex number).
o select "Both" for whether it should be bootp or dhcp.
[ o click "Ok" to close this window? ]

o Find your new reservation at the bottom of the list under Reservations
  and click it.
o right click "Configure Options..."
  It should have inherited your server's default options, so I won't
  cover setting router, dns, wins, and lease length.

o Scroll down the list of options to 066 "Boot Server Host Name".
  Check the box next to option 066.  Enter your tftp server's ip address
  (I don't trust DNS to work in IPL).

o check option 067 "Bootfile Name" and enter the name of the lifimage.
  Generally, "lifimage" is a good choice here.

o click "ok" and dhcp server is ready!


Enable Tftpd on Win2k Server
----------------------------
o Get Tftpd from http://tftpd32.jounin.net/
o start tftpd32 [.exe?]
o click the "browse" button
o Browse to where you put your lifimage, highlight it and click ok.

o Make sure the IP address below the directory is the right one.
  If not, drop down the list and pick the right one.
  [which IP? client or dhcpd server?]

o Leave tftpd32 running. The tftp server only runs when the gui is displayed.
  [ Can tftpd32 can be run as a service? How? Help page on jounin.net? ]


Net Boot the PARISC Workstation
-------------------------------
o Get the "BOOT_ADMIN>" prompt again
o Type "sea lan" (for search). If everything is correct, you should
  see something like:
  	P0 LAN.<BLAH>
	
o type "bo p0" to start the parisc-linux boot process.
  Palo output should be the next thing to show up on the console.

o If "P0 LAN" doesn't show up, check:
	+ settings on the DHCP server.
	  eg. verify the PARISC MAC address is correct,
	+ your dhcp server is on the same physical network segment as
	  the PARISC workstation.
	+ "Link" light on PARISC workstation and Win2K server
	  LAN port is lit.
  
The HOWTO PARISC install [URL?] howto will be helpful from this point.


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The problem seems to be with the flush_dcache_page () routine in
asm-parisc/pgalloc.h.  The routine does not handle the case when
page->mapping == NULL.  It simply ends up calling __flush_dcache_page ()
which only flushes out the cache lines corresponding to the kernel VA.

The cache lines corresponding to the user VA remain unaffected.  In order
for
the user cache lines to be flushed a call to flush_cache_page () or
flush_user_dcache_range ()
must be made.

In order to do this the flush_dcache_page () interface may need to be
modified to take in a user VA as an argument.

If this is not feasible we could as a hack check for page->mapping == NULL
in flush_dcache_page () and call flush_data_cache().  This would be very
expensive.

Also, does'nt __flush_dcache_page () need to have a for loop for "i_mmap"
similar to the one for "i_mmap_shared" ?

thanks,
santosh.



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> Also, does'nt __flush_dcache_page () need to have a for loop for "i_mmap"
> similar to the one for "i_mmap_shared" ?
> 

no, this was discussed recently on this list.

see jejb's message:
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-August/020791.html

and the corresponding thread for more info.

i thought flush_dcache_page is for making kernel mapping visible to
user, if you are trying to make user data visible to the kernel, you
should not be relying on flush_dcache_page.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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hmm.. why is map_user_kiobuf () calling flush_dcache_page () then ?
should it not be calling flush_cache_{range,page} ?

map_user_kiobuf () called from the raw I/O path should ,in the
write case, be flushing user data out, so that its visible to
the kernel VA.
This is not being done in flush_dcache_page () when page->mapping is
NULL.

-----Original Message-----
From: Randolph Chung [mailto:randolph@tausq.org]
Sent: Thursday, September 25, 2003 4:20 PM
To: santosh.abraham@hp.com
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Fwd: Problems with raw interface.


> Also, does'nt __flush_dcache_page () need to have a for loop for "i_mmap"
> similar to the one for "i_mmap_shared" ?
>

no, this was discussed recently on this list.

see jejb's message:
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-August/020791.html

and the corresponding thread for more info.

i thought flush_dcache_page is for making kernel mapping visible to
user, if you are trying to make user data visible to the kernel, you
should not be relying on flush_dcache_page.

randolph
--
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/



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On Thu, Sep 25, 2003 at 04:49:21PM +0530, Santosh Abraham wrote:
> 
> hmm.. why is map_user_kiobuf () calling flush_dcache_page () then ?
> should it not be calling flush_cache_{range,page} ?
> 
> map_user_kiobuf () called from the raw I/O path should ,in the
> write case, be flushing user data out, so that its visible to
> the kernel VA.

I think you're right.  flush_dcache_page is for page cache pages, not for
random user addresses.  Would something like this make sense?

Index: mm/memory.c
===================================================================
RCS file: /var/cvs/linux-2.4/mm/memory.c,v
retrieving revision 1.24
diff -u -p -r1.24 memory.c
--- linux-2.4/mm/memory.c 29 Nov 2002 02:21:13 -0000      1.24
+++ linux-2.4/mm/memory.c 25 Sep 2003 14:22:42 -0000
@@ -569,12 +569,7 @@ int map_user_kiobuf(int rw, struct kiobu
                return err;
        }
        iobuf->nr_pages = err;
-       while (pgcount--) {
-               /* FIXME: flush superflous for rw==READ,
-                * probably wrong function for rw==WRITE
-                */
-               flush_dcache_page(iobuf->maplist[pgcount]);
-       }
+       flush_cache_range(mm, va, va + len);
        dprintk ("map_user_kiobuf: end OK\n");
        return 0;
 }

I deleted the comment because it's not correct ;-)  The kernel is about
to access these pages.  Any existing cache for the contents of those pages
must now be invalidated if the kernel's about to write to it, and must be
written back if the kernel's about to read from it.  flush_cache_range()
must already have these properties otherwise munmap() wouldn't work.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi all,

Trying to continue investigation, I puted a printk at the begining of handle_interruption()
to get just the interruption's 'code' managed.

As already mentionned in previous mail that I could read many 6, 15 (but
it seems to be normal: e
en in UP kernel those interruption occurs) but
(most interesting) it is the very first time that I got the message making
failled the kernel:
[...]
handle_interruption(26, ...).
SMP CALL FUNCTION TIMED OUT (CPU=1)
handle_interruption(26, ...).



    Stack dump:

[...]

(unfortunately I couldn't grab this dump :( )

Could this be a pb with sync between cpu time ref? (because timeout = jiffies
+ HZ)

I have also a look for where this function is called but never see its return
code tested to launch a 'stack dump' and a stop of system?

Thanks in advance for help,
    Joel

PS: I don't know if it is important but the two cpus on this server are located
in slot 1 and 3 (not in slot 1 and 2 as we would logicaly expect) 



-------------------------------------------------------------------------
L'Internet rapide, c'est pour tout le monde. Tiscali ADSL, 19,50 Euro
pendant 3 mois! http://reg.tiscali.be/default.asp?lg=fr 




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They are in the right slots...N Class CPU loading in order: 1,3,5,7,0,2,4,6.  If you are looking at the back of the machine with the rear cover open, the two cpus should be in the left two slot.  First memory carrier should be in the right most slot and loaded toward the left.  I should know since I just had to tear apart an entire N to upgrade it from 6 550Mhz cpus to 8 750Mhz cpus.  Takes about 3 hours and it requires a system board change.  The N has 3 system boards: an A, a B, and a C rev.  "A" is for 360-440.  "B" is for 360-550.  And the "C" is for the 650-750, but I'm sure it would accept all the processors slower than 650 too with the right speed setting on the dip switches.
 
derek


Joel Soete <soete.joel@tiscali.be> wrote:
Hi all,

Trying to continue investigation, I puted a printk at the begining of handle_interruption()
to get just the interruption's 'code' managed.

As already mentionned in previous mail that I could read many 6, 15 (but
it seems to be normal: e
en in UP kernel those interruption occurs) but
(most interesting) it is the very first time that I got the message making
failled the kernel:
[...]
handle_interruption(26, ...).
SMP CALL FUNCTION TIMED OUT (CPU=1)
handle_interruption(26, ...).



Stack dump:

[...]

(unfortunately I couldn't grab this dump :( )

Could this be a pb with sync between cpu time ref? (because timeout = jiffies
+ HZ)

I have also a look for where this function is called but never see its return
code tested to launch a 'stack dump' and a stop of system?

Thanks in advance for help,
Joel

PS: I don't know if it is important but the two cpus on this server are located
in slot 1 and 3 (not in slot 1 and 2 as we would logicaly expect) 



-------------------------------------------------------------------------
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pendant 3 mois! http://reg.tiscali.be/default.asp?lg=fr 


_______________________________________________
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<DIV>
<DIV>They are in the right slots...N Class CPU loading in order: 1,3,5,7,0,2,4,6.&nbsp; If you are looking at the back of the machine with the rear cover open, the two cpus should be in the left two slot.&nbsp; First memory carrier should be in the right most slot and loaded toward the left.&nbsp; I should know since I just had to tear apart an entire N to upgrade it from 6 550Mhz cpus to 8 750Mhz cpus.&nbsp; Takes about 3 hours and it requires&nbsp;a system board change.&nbsp; The N has 3 system boards: an A, a B, and a C rev.&nbsp; "A" is for 360-440.&nbsp; "B" is for 360-550.&nbsp; And the "C" is for the 650-750, but I'm sure it would accept all the processors slower than 650 too with the right speed setting on the dip switches.</DIV>
<DIV>&nbsp;</DIV>
<DIV>derek<BR><BR><BR><B><I>Joel Soete &lt;soete.joel@tiscali.be&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Hi all,<BR><BR>Trying to continue investigation, I puted a printk at the begining of handle_interruption()<BR>to get just the interruption's 'code' managed.<BR><BR>As already mentionned in previous mail that I could read many 6, 15 (but<BR>it seems to be normal: e<BR>en in UP kernel those interruption occurs) but<BR>(most interesting) it is the very first time that I got the message making<BR>failled the kernel:<BR>[...]<BR>handle_interruption(26, ...).<BR>SMP CALL FUNCTION TIMED OUT (CPU=1)<BR>handle_interruption(26, ...).<BR><BR><BR><BR>Stack dump:<BR><BR>[...]<BR><BR>(unfortunately I couldn't grab this dump :( )<BR><BR>Could this be a pb with sync between cpu time ref? (because timeout =
  jiffies<BR>+ HZ)<BR><BR>I have also a look for where this function is called but never see its return<BR>code tested to launch a 'stack dump' and a stop of system?<BR><BR>Thanks in advance for
 help,<BR>Joel<BR><BR>PS: I don't know if it is important but the two cpus on this server are located<BR>in slot 1 and 3 (not in slot 1 and 2 as we would logicaly expect) <BR><BR><BR><BR>-------------------------------------------------------------------------<BR>L'Internet rapide, c'est pour tout le monde. Tiscali ADSL, 19,50 Euro<BR>pendant 3 mois! http://reg.tiscali.be/default.asp?lg=fr <BR><BR><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE></DIV><p><hr SIZE=1>
Do you Yahoo!?<br>
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libc,

Found the problem with bug-iconv3, it was related to the fact that
hppa's locks can't be initialized to zero (or left unitialized). When
running a non-threaded application and dlopening libpthread the
__libc_maybe_call2's start using the proper strong symbol of those
funcions. At this point malloc on hppa would in certain occassions
fget stuck in a lock that it thought was taken (value of zero).

The following patch fixes the issue, but I'm not content about it's
placement in malloc/thread-m.h. Any comments about where I might put
this in order to make maintenance easier?

Cheers,
Carlos.

diff -u -p -r1.23 thread-m.h
--- glibc/malloc/thread-m.h	1 Jul 2003 08:29:43 -0000	1.23
+++ glibc/malloc/thread-m.h	25 Sep 2003 20:43:55 -0000
@@ -59,6 +59,28 @@ __libc_lock_define (typedef, mutex_t)
 #define mutex_unlock(m)		\
   __libc_maybe_call2 (pthread_mutex_unlock, (m), (*(int *)(m) = 0))
 
+# if(defined __hppa__)
+/* Since our lock structure does not tolerate being initialized to zero, we must
+   modify the standard function calls made by malloc */
+#  undef mutex_init
+#  undef mutex_lock
+#  undef mutex_trylock
+#  undef mutex_unlock
+#  define mutex_init(m)		\
+	__libc_maybe_call (__pthread_mutex_init, (m, NULL), \
+			(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT),(*(int *)(m))) )
+#  define mutex_lock(m)		\
+	__libc_maybe_call (__pthread_mutex_lock, (m), \
+			(__load_and_clear(&((m)->__m_lock.__spinlock)), 0))
+#  define mutex_trylock(m)	\
+	__libc_maybe_call (__pthread_mutex_trylock, (m), \
+			(*(int *)(m) ? 1 : (__load_and_clear(&((m)->__m_lock.__spinlock)), 0)))
+#  define mutex_unlock(m)	\
+	__libc_maybe_call (__pthread_mutex_unlock, (m), \
+			(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT), (*(int *)(m))) )
+# endif 
+/* if(defined __hppa__) */
+	
 #else
 
 #define mutex_init(m)		\


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On Thu, Sep 25, 2003 at 04:56:26PM +0200, Joel Soete wrote:
...
> As already mentionned in previous mail that I could read many 6, 15 (but
> it seems to be normal in UP kernel those interruption occurs)


Yes - 6 is ITLB miss and 15 is Data TLB miss.

> but (most interesting) it is the very first time that I got
> the message making failed the kernel:
> [...]
> handle_interruption(26, ...).

26 is "Data Memory Access rights Trap".
This sounds normal for Copy-On-Write.

> SMP CALL FUNCTION TIMED OUT (CPU=1)

The IPI handler will time out if the other CPU doesn't ack
the function call with in a second. This is bad.
It means either other CPU never got the interrupt (locked up
with I-bit off) or the "unstarted_count" isn't coherent
between the CPUs.

> handle_interruption(26, ...).
>
> Could this be a pb with sync between cpu time ref?
> (because timeout = jiffies + HZ)

I don't think so since jiffies is a global.
And it's always be measured on the same CPU.

> I have also a look for where this function is called but never see its return
> code tested to launch a 'stack dump' and a stop of system?

You need to find out who is using smp_call_function() and which function
they are trying to invoke. I suspect it's coming from mm/slab.c but
would know which of the three it might be.

grant


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i keep getting about ten a day of these messages in the /var/log/kern.log
file. can anyone tell me whats going on, and point me in the right
direction  to fix it? thanks.
some info on my hard/software:

quasimodo:/# uname -a
Linux quasimodo 2.4.20-64 #1 Sun Feb 23 18:50:45 CET 2003 parisc64 unknown

quasimodo:/# cat /etc/debian_version
3.0

quasimodo:/# apache -v -V
Server version: Apache/1.3.26 (Unix) Debian GNU/Linux
Server built:   Oct 26 2002 09:15:53


and the log-message:

Sep 23 16:14:14 quasimodo kernel: do_page_fault() pid=6089
command='apache' type=15 address=0x00000008Sep 23 16:14:14 quasimodo kernel:
Sep 23 16:14:14 quasimodo kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Sep 23 16:14:14 quasimodo kernel: PSW: 00000000000001101111111100001111
Not taintedSep 23 16:14:14 quasimodo kernel: r00-03  0000000000000000
00000000404c36c7 0000000040515d67 0000000311528cbaSep 23 16:14:14 quasimodo kernel: r04-07  00000000405ee948
0000000000182bd0 0000000000000009 0000000000182bd9Sep 23 16:14:14 quasimodo kernel: r08-11  00000000001f4a00
00000000405ee948 00000000faf03590 00000000faf034c8Sep 23 16:14:14 quasimodo kernel: r12-15  0000000000000008
00000000000689f0 0000000060000000 00000000000629f0Sep 23 16:14:14 quasimodo kernel: r16-19  00000000000629f0
00000000000000c8 00000000000699f0 00000000405ee948Sep 23 16:14:14 quasimodo kernel: r20-23  0000000000000002
0000000000000000 0000000000182bd9 00000000faf03590Sep 23 16:14:14 quasimodo kernel: r24-27  0000000000000009
0000000000182bd0 00000000001f4a00 00000000000629f0Sep 23 16:14:14 quasimodo kernel: r28-31  0000000000000003
00000000405f3948 00000000faf036c0 000000004049b817Sep 23 16:14:14 quasimodo kernel: sr0-3   0000000000000f00
0000000000000f00 0000000000000000 0000000000000f00Sep 23 16:14:14 quasimodo kernel: sr4-7   0000000000000f00
0000000000000f00 0000000000000f00 0000000000000f00Sep 23 16:14:14 quasimodo kernel:
Sep 23 16:14:14 quasimodo kernel: IASQ: 0000000000000f00 0000000000000f00
IAOQ: 00000000404c3caf 00000000404c3cb3Sep 23 16:14:14 quasimodo kernel:  IIR: 0eb42084    ISR: 0000000000000f00 
IOR: 0000000000000008Sep 23 16:14:14 quasimodo kernel:  CPU:        0   CR30: 0000000017dbc000
CR31: 0000000010508000Sep 23 16:14:14 quasimodo kernel:  ORIG_R28: 0000000040307254









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On Thu, 25 Sep 2003 15:26:23 +0100
Matthew Wilcox <willy@debian.org> wrote:

> I think you're right.  flush_dcache_page is for page cache pages, not for
> random user addresses.  Would something like this make sense?

The flush_dcache_page() is needed in case the platform has deferred
the flushing for a kernel cpu store to a page cache page.

You cannot just delete this call and replace it with a flush_cache_range()
call, that simply won't work.


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In reference to a message from mlist@zinkens.net, dated Sep 26:
> i keep getting about ten a day of these messages in the /var/log/kern.log
> file. can anyone tell me whats going on, and point me in the right
> direction  to fix it? thanks.
> some info on my hard/software:

Your apache is crashing randomly :( I think mkp said he was seeing this
problem as well and was trying to debug it.

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: RE: [parisc-linux] Fwd:  Problems with raw interface.
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A call to flush_cache_range(), before the call to flush_dcache_page ()
would fix the problem. I tested this a couple of days back,
but called flush_user_dcache_range () instead of flush_cache_range(), and
our apps seemed to work fine.

flush_cache_range () calls flush_user_dcache_range () internally.
(i am aware that flush_user_dcache_range () is not an exported
interface, but I urgently needed to get our apps working ).

Would the following be acceptable ?
------------------------------------------------------------------------
*** mm/memory.c.orig       Fri Nov 29 07:51:13 2002
--- mm/memory.c    Fri Sep 26 15:56:02 2003
***************
*** 570,578 ****
        }
        iobuf->nr_pages = err;
        while (pgcount--) {
!               /* FIXME: flush superflous for rw==READ,
!                * probably wrong function for rw==WRITE
                 */
                flush_dcache_page(iobuf->maplist[pgcount]);
        }
        dprintk ("map_user_kiobuf: end OK\n");
--- 570,595 ----
        }
        iobuf->nr_pages = err;
        while (pgcount--) {
!               struct page *page;
!
!               page = iobuf->maplist[pgcount];
!
!               /*
!                * flush_dcache_page () calls flush_cache_page () internally
!                * in certain cases.  This check is an attempt to avoid
!                * spurious cache flushes.
                 */
+
+               if (!page->mapping) {
+                       unsigned long start = va + (pgcount * PAGE_SIZE);
+                       unsigned long end   = va + ((pgcount+1) *
PAGE_SIZE);
+
+                       /* Strictly not necessary, perhaps ? */
+                       if (end > va+len) {
+                               end = va+len;
+                       }
+                       flush_cache_range (mm, start, end);
+               }
                flush_dcache_page(iobuf->maplist[pgcount]);

-----------------------------------------------------------------------

Does the order of the calls to flush_cache_range ()/flush_dcache_page()
matter ?

Also, what would be the effect on other platforms ?


-----Original Message-----
From: willy@www.linux.org.uk [mailto:willy@www.linux.org.uk]On Behalf Of
Matthew Wilcox
Sent: Thursday, September 25, 2003 7:56 PM
To: santosh.abraham@hp.com
Cc: 'Randolph Chung'; parisc-linux@lists.parisc-linux.org; Stephen C.
Tweedie; David S. Miller
Subject: Re: [parisc-linux] Fwd: Problems with raw interface.


On Thu, Sep 25, 2003 at 04:49:21PM +0530, Santosh Abraham wrote:
>
> hmm.. why is map_user_kiobuf () calling flush_dcache_page () then ?
> should it not be calling flush_cache_{range,page} ?
>
> map_user_kiobuf () called from the raw I/O path should ,in the
> write case, be flushing user data out, so that its visible to
> the kernel VA.

I think you're right.  flush_dcache_page is for page cache pages, not for
random user addresses.  Would something like this make sense?

Index: mm/memory.c
===================================================================
RCS file: /var/cvs/linux-2.4/mm/memory.c,v
retrieving revision 1.24
diff -u -p -r1.24 memory.c
--- linux-2.4/mm/memory.c 29 Nov 2002 02:21:13 -0000      1.24
+++ linux-2.4/mm/memory.c 25 Sep 2003 14:22:42 -0000
@@ -569,12 +569,7 @@ int map_user_kiobuf(int rw, struct kiobu
                return err;
        }
        iobuf->nr_pages = err;
-       while (pgcount--) {
-               /* FIXME: flush superflous for rw==READ,
-                * probably wrong function for rw==WRITE
-                */
-               flush_dcache_page(iobuf->maplist[pgcount]);
-       }
+       flush_cache_range(mm, va, va + len);
        dprintk ("map_user_kiobuf: end OK\n");
        return 0;
 }

I deleted the comment because it's not correct ;-)  The kernel is about
to access these pages.  Any existing cache for the contents of those pages
must now be invalidated if the kernel's about to write to it, and must be
written back if the kernel's about to read from it.  flush_cache_range()
must already have these properties otherwise munmap() wouldn't work.

--
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead
bodies.
Do you think I want to have an academic debate on this subject?" -- Robert
Fisk



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1) Please use unified diffs when you post patches.

2) If you insist on using Microsoft Outlook when posting patches
   at least configure it properly when doing so.  By default it is
   going to turn tabs into spaces and that makes the patch corrupt
   and unusable by anyone.

2) Your patch is unacceptable because it is taking advantage
   of internal implementation details of flush_dcache_page()
   on parisc64 that might not (and in fact, is not) be true
   on other platforms.


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On Thu, Sep 25, 2003 at 06:08:48PM -0700, David S. Miller wrote:
> On Thu, 25 Sep 2003 15:26:23 +0100
> Matthew Wilcox <willy@debian.org> wrote:
> 
> > I think you're right.  flush_dcache_page is for page cache pages, not for
> > random user addresses.  Would something like this make sense?
> 
> The flush_dcache_page() is needed in case the platform has deferred
> the flushing for a kernel cpu store to a page cache page.

But this isn't a page cache page.

> You cannot just delete this call and replace it with a flush_cache_range()
> call, that simply won't work.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, 26 Sep 2003 12:24:00 +0100
Matthew Wilcox <willy@debian.org> wrote:

> On Thu, Sep 25, 2003 at 06:08:48PM -0700, David S. Miller wrote:
> > The flush_dcache_page() is needed in case the platform has deferred
> > the flushing for a kernel cpu store to a page cache page.
> 
> But this isn't a page cache page.

Are you sure?  Isn't raw I/O allowed on user buffers backed by
some kind of file based mmap()?


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The flush_dcache_page () might be required in cases when the
same user buffer is being used for both reads and writes in an
alternating fashion, right ?

-----Original Message-----
From: willy@www.linux.org.uk [mailto:willy@www.linux.org.uk]On Behalf Of
Matthew Wilcox
Sent: Friday, September 26, 2003 4:54 PM
To: David S. Miller
Cc: Matthew Wilcox; santosh.abraham@hp.com; randolph@tausq.org;
parisc-linux@lists.parisc-linux.org; sct@redhat.com
Subject: Re: [parisc-linux] Fwd: Problems with raw interface.


On Thu, Sep 25, 2003 at 06:08:48PM -0700, David S. Miller wrote:
> On Thu, 25 Sep 2003 15:26:23 +0100
> Matthew Wilcox <willy@debian.org> wrote:
>
> > I think you're right.  flush_dcache_page is for page cache pages, not
for
> > random user addresses.  Would something like this make sense?
>
> The flush_dcache_page() is needed in case the platform has deferred
> the flushing for a kernel cpu store to a page cache page.

But this isn't a page cache page.

> You cannot just delete this call and replace it with a flush_cache_range()
> call, that simply won't work.

--
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead
bodies.
Do you think I want to have an academic debate on this subject?" -- Robert
Fisk



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Hi,

On Fri, 2003-09-26 at 12:20, David S. Miller wrote:

> Are you sure?  Isn't raw I/O allowed on user buffers backed by
> some kind of file based mmap()?

Yes, it is.

--Stephen



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On 26 Sep 2003 12:57:01 +0100
"Stephen C. Tweedie" <sct@redhat.com> wrote:

> On Fri, 2003-09-26 at 12:20, David S. Miller wrote:
> 
> > Are you sure?  Isn't raw I/O allowed on user buffers backed by
> > some kind of file based mmap()?
> 
> Yes, it is.

So there we go, that's how page can be a page cache page Matthew.


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Apologies for 1) & 2). I guess ignorance is not bliss or excusable,
 is it :)

As for 3) i agree that there are issues, but what are the alternatives
 we have ?

Assuming that you agree that we need to call flush_cache_range ( ) to fix
the issue.

1) Call flush_cache_range () directly before the call to 
flush_dcache_page ().  But this could impact other architectures
too, right ?

2) Modify flush_dcache_page () in asm-parisc/pgalloc.h to handle
this.  But this is not easy cause we do not pass the user VA in
flush_dcache_page ().  


-----Original Message-----
From: David S. Miller [mailto:davem@redhat.com]
Sent: Friday, September 26, 2003 4:05 PM
To: santosh.abraham@hp.com
Cc: santosha@india.hp.com; willy@debian.org; randolph@tausq.org;
parisc-linux@lists.parisc-linux.org; sct@redhat.com
Subject: Re: [parisc-linux] Fwd: Problems with raw interface.



1) Please use unified diffs when you post patches.

2) If you insist on using Microsoft Outlook when posting patches
   at least configure it properly when doing so.  By default it is
   going to turn tabs into spaces and that makes the patch corrupt
   and unusable by anyone.

3) Your patch is unacceptable because it is taking advantage
   of internal implementation details of flush_dcache_page()
   on parisc64 that might not (and in fact, is not) be true
   on other platforms.



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On Fri, Sep 26, 2003 at 04:48:41AM -0700, David S. Miller wrote:
> On 26 Sep 2003 12:57:01 +0100
> "Stephen C. Tweedie" <sct@redhat.com> wrote:
> 
> > On Fri, 2003-09-26 at 12:20, David S. Miller wrote:
> > 
> > > Are you sure?  Isn't raw I/O allowed on user buffers backed by
> > > some kind of file based mmap()?
> > 
> > Yes, it is.
> 
> So there we go, that's how page can be a page cache page Matthew.

OK, so it *might* be a page cache page, but isn't necessarily.  So we
need to call *both* flush_dcache_page() and flush_cache_range(), right?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, 26 Sep 2003 13:20:23 +0100
Matthew Wilcox <willy@debian.org> wrote:

> OK, so it *might* be a page cache page, but isn't necessarily.  So we
> need to call *both* flush_dcache_page() and flush_cache_range(), right?

I'm starting to think that flush_dcache_page() needs to take care
of this.

Santosh remarked that flush_dcache_page() doesn't get the user virtual
address, but that is not needed.  From the page you can walk the mmap()s
and flush the mapping in each address space it is contained within.

And you absolutely must flush each address space, not just the one currently
doing the raw I/O request.

In that light, doing a flush_cache_range() with a specific VMA (2.6.x)
or MM (2.4.x) is totally illogical here.


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> On Fri, 26 Sep 2003 13:20:23 +0100
> Matthew Wilcox <willy@debian.org> wrote:
> 
> > OK, so it *might* be a page cache page, but isn't necessarily.  So we
> > need to call *both* flush_dcache_page() and flush_cache_range(), right?
> 
> I'm starting to think that flush_dcache_page() needs to take care
> of this.
> 
> Santosh remarked that flush_dcache_page() doesn't get the user virtual
> address, but that is not needed.  From the page you can walk the mmap()s
> and flush the mapping in each address space it is contained within.

Are you talking about the page->mapping->{i_mmap_shared, i_mmap} lists ?
If so, this is already handled in __flush_dcache_page ().

The problem in this case is page->mapping is NULL. 

> 
> And you absolutely must flush each address space, not just the one currently
> doing the raw I/O request.
> 
> In that light, doing a flush_cache_range() with a specific VMA (2.6.x)
> or MM (2.4.x) is totally illogical here.
> 



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On Fri, 26 Sep 2003 18:41:41 +0530 (IST)
SANTOSH ABRAHAM <santosha@india.hp.com> wrote:

> The problem in this case is page->mapping is NULL. 

When page->mapping is NULL, flush_dcache_page() should purge the page
(by physical addres) from it's caches.  This is what sparc64 does.

Flushing just the current address space is incorrect, so don't get the
fancy idea to pass the 'mm' and 'va' into flush_dcache_page().


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On Fri, Sep 26, 2003 at 05:56:52AM -0700, David S. Miller wrote:
> On Fri, 26 Sep 2003 18:41:41 +0530 (IST)
> SANTOSH ABRAHAM <santosha@india.hp.com> wrote:
> 
> > The problem in this case is page->mapping is NULL. 
> 
> When page->mapping is NULL, flush_dcache_page() should purge the page
> (by physical addres) from it's caches.  This is what sparc64 does.

But you can't do that on PA-RISC.  You can only purge virtual addresses.

> Flushing just the current address space is incorrect, so don't get the
> fancy idea to pass the 'mm' and 'va' into flush_dcache_page().

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, 26 Sep 2003 14:29:01 +0100
Matthew Wilcox <willy@debian.org> wrote:

> On Fri, Sep 26, 2003 at 05:56:52AM -0700, David S. Miller wrote:
> > When page->mapping is NULL, flush_dcache_page() should purge the page
> > (by physical addres) from it's caches.  This is what sparc64 does.
> 
> But you can't do that on PA-RISC.  You can only purge virtual addresses.

Then for page->mapping == NULL your flush_dcache_page() is not doing
what it is supposed to, and you can expect problems extending further
than this raw I/O case.

You have to find a way to walk all the address spaces to figure out
where the page is mapped.

If you just put a flush_cache_range() there, you may get your current
test working but that code is wrong.  It will be wrong in any case
where the page is mapped to anywhere other then this mapping in
this address space.

The real problem for you guys is that in 2.4.x there is no easy way to
go from a page to it's mapping regardless of what kind of page it is.
That's what you need to rectify somehow.



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Hi,

> The following patch fixes the issue, but I'm not content about it's
> placement in malloc/thread-m.h. Any comments about where I might put
> this in order to make maintenance easier?

Ok, I have become convinced it is best to move thread-m.h into
sysdeps.  We should rename it, too (my suggestion: malloc-machine.h),
and make sure that one can put e.g.

#define DEFAULT_MMAP_THRESHOLD (256*1024)

in there and have it reflected in malloc.

I'll send a patch for this tomorrow.

Regards,
Wolfram.


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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Fwd:  Problems with raw interface.
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On Fri, Sep 26, 2003 at 06:21:43AM -0700, David S. Miller wrote:
> On Fri, 26 Sep 2003 14:29:01 +0100
> Matthew Wilcox <willy@debian.org> wrote:
> 
> > On Fri, Sep 26, 2003 at 05:56:52AM -0700, David S. Miller wrote:
> > > When page->mapping is NULL, flush_dcache_page() should purge the page
> > > (by physical addres) from it's caches.  This is what sparc64 does.
> > 
> > But you can't do that on PA-RISC.  You can only purge virtual addresses.
> 
> Then for page->mapping == NULL your flush_dcache_page() is not doing
> what it is supposed to, and you can expect problems extending further
> than this raw I/O case.

Oh, come on, Dave.  You just changed the definition of
flush_dcache_page().  You can't claim the implementation isn't doing
what it's supposed to!  The definition in cachetlb talks *only* about
page cache pages.

> You have to find a way to walk all the address spaces to figure out
> where the page is mapped.

That's ridiculous.  For a start, pages can't be mapped into multiple
address spaces without being in the page cache.  Second, we already know
where it is, you just refuse to pass that information in.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Fwd:  Problems with raw interface.
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On Fri, 26 Sep 2003 15:09:48 +0100
Matthew Wilcox <willy@debian.org> wrote:

> > You have to find a way to walk all the address spaces to figure out
> > where the page is mapped.
> 
> That's ridiculous.  For a start, pages can't be mapped into multiple
> address spaces without being in the page cache.

How in the world can anonymous pages work then?  Of course anonymous
pages can be in multiple address spaces without being in the page
cache.


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Subject: [parisc-linux] Re: [RFC] Where to put arch-dependant locking in malloc/thread-m.h
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On Fri, Sep 26, 2003 at 01:39:54PM -0000, wmglo@dent.med.uni-muenchen.de wrote:
> > The following patch fixes the issue, but I'm not content about it's
> > placement in malloc/thread-m.h. Any comments about where I might put
> > this in order to make maintenance easier?
> 
> Ok, I have become convinced it is best to move thread-m.h into
> sysdeps.  We should rename it, too (my suggestion: malloc-machine.h),
> and make sure that one can put e.g.
> 
> #define DEFAULT_MMAP_THRESHOLD (256*1024)
> 
> in there and have it reflected in malloc.
> 
> I'll send a patch for this tomorrow.

Thank you. Sounds like the best solution in this case.

c.


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Hi,

On Fri, 2003-09-26 at 15:09, Matthew Wilcox wrote:

> That's ridiculous.  For a start, pages can't be mapped into multiple
> address spaces without being in the page cache.

fork().  At least we know the pages aren't dirty or writable in that
case, though.  But because of sys_mremap(), we don't know the VA for all
possible mappings, and the pages are _not_ necessarily in the page
cache.

There's only one place where anon pages get into the page cache, and
that's via swap cache.  Note that we don't have to worry about
kernel-context access to such pages: the contents are only ever seen
from user-space process context.  The fork case still means there are
multiple such referencing contexts, though.

--Stephen



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On Fri, Sep 26, 2003 at 07:04:50AM -0700, David S. Miller wrote:
> On Fri, 26 Sep 2003 15:09:48 +0100
> Matthew Wilcox <willy@debian.org> wrote:
> 
> > > You have to find a way to walk all the address spaces to figure out
> > > where the page is mapped.
> > 
> > That's ridiculous.  For a start, pages can't be mapped into multiple
> > address spaces without being in the page cache.
> 
> How in the world can anonymous pages work then?  Of course anonymous
> pages can be in multiple address spaces without being in the page
> cache.

How?  By fork()?  If so, that's not a problem -- the pages stay at the same
address in both processes, and flushing one will flush any inherited pages.
Otherwise you'll have to be more explicit.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, 26 Sep 2003 15:30:52 +0100
Matthew Wilcox <willy@debian.org> wrote:

> On Fri, Sep 26, 2003 at 07:04:50AM -0700, David S. Miller wrote:
> > On Fri, 26 Sep 2003 15:09:48 +0100
> > Matthew Wilcox <willy@debian.org> wrote:
> > 
> > > > You have to find a way to walk all the address spaces to figure out
> > > > where the page is mapped.
> > > 
> > > That's ridiculous.  For a start, pages can't be mapped into multiple
> > > address spaces without being in the page cache.
> > 
> > How in the world can anonymous pages work then?  Of course anonymous
> > pages can be in multiple address spaces without being in the page
> > cache.
> 
> How?  By fork()?  If so, that's not a problem -- the pages stay at the same
> address in both processes, and flushing one will flush any inherited pages.
> Otherwise you'll have to be more explicit.

Any page can be mremap()'d to any other address.

You really do have to walk all the address spaces to sufficiently
tap the page out of the caches.  Unfortunately, this is only easy
in 2.6.x :(


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Hi,

On Fri, 2003-09-26 at 15:20, David S. Miller wrote:

> Any page can be mremap()'d to any other address.

Yep.  At least this case is rare, and you can optimise for the simple
case by checking page->count.  But the general case really does need to
be covered if you're going to be fully correct for all cases.

And with O_DIRECT being an unprivileged operation, users have the
ability to expose this problem quite easily.

Cheers,
 Stephen



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>Yes - 6 is ITLB miss and 15 is Data TLB miss.
...
>
>> handle_interruption(26, ...).
>
>26 is "Data Memory Access rights Trap".
>This sounds normal for Copy-On-Write.

Yes to be sure I just finished to logon a b2k with same kernel (excepted
pdc support but I already verify it doesn't make any difference in the crash
in smp on the N) and effectively it is normal to read many 6, 15 and 26
interruptions.

>> SMP CALL FUNCTION TIMED OUT (CPU=1)
>
>The IPI handler will time out if the other CPU doesn't ack
>the function call with in a second. This is bad.

OTC This is the better messages I never get to start an analyse of this crash
:))

>It means either other CPU never got the interrupt (locked up
>with I-bit off) or the "unstarted_count" isn't coherent between the CPUs.

hmm how could I verify this hypothesis?

>>
>> Could this be a pb with sync between cpu time ref?
>> (because timeout = jiffies + HZ)
>
>I don't think so since jiffies is a global.
>And it's always be measured on the same CPU.
Ok
>
>> I have also a look for where this function is called but never see its
return
>> code tested to launch a 'stack dump' and a stop of system?
>
>You need to find out who is using smp_call_function() and which function
>they are trying to invoke. I suspect it's coming from mm/slab.c but
>would know which of the three it might be.

Effectively I don't find another place where it is called. And so add a
printk in each function calling smp_call_function_all_cpus() finaly.

That is allowing me to notice severall call to kmem_tune_cpucache() (7 exactly)
(and not other) but don't get any more 'SMP CALL FUNCTION TIMED OUT (CPU=1)'
:(
(i presume that, as previously, the system crash before having the opportunity
to flush its buffer?)

What do you think?

Thanks a lot for help,
    Joel




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>
>That is allowing me to notice severall call to kmem_tune_cpucache() (7 exactly)
>(and not other) but don't get any more 'SMP CALL FUNCTION TIMED OUT (CPU=1)'
>:(
>(i presume that, as previously, the system crash before having the opportun
>ty to flush its buffer?)

btw: does it exists some tips to flush buffer before all (or not buffering
console ouput)?


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On Fri, Sep 26, 2003 at 12:03:29AM -0700, Randolph Chung wrote:
> Your apache is crashing randomly :( I think mkp said he was seeing this
> problem as well and was trying to debug it.

I haven't been seeing that with either apache or apache2.

On a500 (64-bit, 2.4.21-pa6) running testing:
ii  apache         1.3.27.0-2     Versatile, high-performance HTTP server

On c3k (32-bit, 2.4.22-pa7) running testing:
ii  apache2-common 2.0.47-1       Next generation, scalable, extendable web se
ii  apache2-mpm-pr 2.0.47-1       Traditional model for Apache2

Neither is heavily loaded but can see bursts of load at times.

hth,
grant


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On Fri, Sep 26, 2003 at 05:46:35PM +0200, Joel Soete wrote:
> >It means either other CPU never got the interrupt (locked up
> >with I-bit off) or the "unstarted_count" isn't coherent between the CPUs.
> 
> hmm how could I verify this hypothesis?

TOC the machine, "ser pim" and look at PSW in TOC Info for each CPU.
bit 0 is the I-Bit IIRC.

On second thought, I'm skeptical unstarted_count isn't coherent
since it's a kernel global as well (like jiffies).

> >You need to find out who is using smp_call_function() and which function
> >they are trying to invoke. I suspect it's coming from mm/slab.c but
> >would know which of the three it might be.
> 
> Effectively I don't find another place where it is called. And so add a
> printk in each function calling smp_call_function_all_cpus() finaly.
> 
> That is allowing me to notice severall call to kmem_tune_cpucache() (7 exactly)
> (and not other) but don't get any more 'SMP CALL FUNCTION TIMED OUT (CPU=1)'
> :(
> (i presume that, as previously, the system crash before having the opportunity
> to flush its buffer?)
> 
> What do you think?

Could be.
Add mdelay(100) (or higher) after the lines of output you've added.
The works if it's a functional problem that's not timing dependent.

Otherwise setup kernel crash dump and use tools from bruno/phi to view
contents of the kernel message buffer.

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:19633

http://pateam.esiee.fr/ has been running apache on 2.4.18-pa45 for=20
years now
(see http://uptime.netcraft.com/up/graph/?host=3Dmkhppa1.esiee.fr )
and no problem have ever been experienced...

you can check the load on the website...

HTH


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

Le vendredi, 26 sep 2003, =E0 18:41 Europe/Paris, Grant Grundler a =E9crit=
 :

> On Fri, Sep 26, 2003 at 12:03:29AM -0700, Randolph Chung wrote:
>> Your apache is crashing randomly :( I think mkp said he was seeing=20
>> this
>> problem as well and was trying to debug it.
>
> I haven't been seeing that with either apache or apache2.
>
> On a500 (64-bit, 2.4.21-pa6) running testing:
> ii  apache         1.3.27.0-2     Versatile, high-performance HTTP=20
> server
>
> On c3k (32-bit, 2.4.22-pa7) running testing:
> ii  apache2-common 2.0.47-1       Next generation, scalable,=20
> extendable web se
> ii  apache2-mpm-pr 2.0.47-1       Traditional model for Apache2
>
> Neither is heavily loaded but can see bursts of load at times.
>
> hth,
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>




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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: [parisc-linux] zalon/ncr53c720 crashes K460  (parisc port) on bootup.
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Hello all,

The zalon/ncr53c720 combination is fatal during booting on my K460
parisc box.  I believe the scsi termination is correct since I performed
a fresh debian install on the scsi disks and I can boot from then every
time I use a 2.4 kernel :)  This problem appeared with with the latest
cvs kernel from parisc-linux.org.

This system does boot and function when I do not compile zalon support
into the kernel and use a nfsroot.

I can provide addtional information and test patches (or give access to
this system) if requested.

Any thoughts or feedback appreciated!  

Thanks,

- Ryan

P.S. please copy me on any replies as i am not subscribed to the
linux-scsi list.


Here is the relevant (I hope) information I copied from the bootup

Linux version 2.6.0-test5-pa20 (rbrad@beavis) (gcc version 3.0.3) #34
Fri Sep 26 21:09:34 MDT 2003


zalon_probe: Zalon vers field is 0x1, IRQ 36
ncr53c720-0: rev 0xf on bus 0 device 0 function 0 irq 36
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
ncr53c720-0: suspicious SCSI data while resetting the BUS.
ncr53c720-0: dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,atn,msg,c/d,i/o =
0x3fdff00, expecting 0x100
ncr53c720-0: FATAL ERROR: CHECK SCSI BUS - CABLES, TERMINATION, DEVICE
POWER etc.!
ncr53c720-0: detaching...

 
Kernel addresses on the stack:
 [<101227bc>] copy_process+0x714/0xa4c
 [<10104144>] parisc_terminate+0x60/0xb0
 [<1010c264>] pdc_iodc_putc+0x88/0x11c
 [<101043e0>] handle_interruption+0x24c/0x598
 [<1010c264>] pdc_iodc_putc+0x88/0x11c
 [<10140b40>] do_drain+0x1c/0x2c
 [<101404c4>] slab_destroy+0x15c/0x208
 [<10109088>] intr_check_sig+0x0/0xc
 [<10140c0c>] __cache_shrink+0x70/0xc4
 [<10220640>] ncr_detach+0x0/0x364
 [<101238f0>] call_console_drivers+0xac/0x170
 [<1015747c>] dentry_open+0x78/0x1b0
 [<10123cc8>] release_console_sem+0x64/0x11c
 [<101573e4>] filp_open+0x4c/0x6c
 [<10348518>] start_kernel+0x4/0x1b8
 [<101e0780>] gsc_alloc_irq+0x38/0x68
 [<10358dec>] zalon_probe+0x1b0/0x230
 [<1018c548>] sysfs_create+0x94/0xe4
 [<1018cf6c>] create_dir+0x80/0xe0
 [<1010cc44>] parisc_driver_probe+0x30/0x60
 [<101fa208>] bus_match+0x4c/0x80
 [<101fa384>] driver_attach+0x88/0xbc
 [<101fa604>] bus_add_driver+0x98/0xa4
 [<1035888c>] tulip_init+0x40/0x74
 [<10348744>] do_initcalls+0x64/0xe0
 [<1010019c>] init+0x28/0x144
 [<10108c5c>] ret_from_kernel_thread+0x1c/0x24

Kernel Fault: Code=26 regs=effb8380 (Addr=00000194)
 
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011101111111100001111 Not tainted
r00-03  00000000 1030a810 10224b2c efffb6e0
r04-07  00000000 efffb688 00000024 10318010
r08-11  efffb600 ffffffed 102f3810 10348518
r12-15  000000f2 000000fa 00000003 f0000d2c
r16-19  f0001790 f0000124 f000011c 00000021
r20-23  10315a40 00000021 0000000f 00100100
r24-27  000002c7 103d9380 00000000 102ea010
r28-31  00000000 0000000b effb8380 101415e8
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000
 
IASQ: 00000000 00000000 IAOQ: 10224b28 10220640
 IIR: 4b5a0328    ISR: 00000000  IOR: 00000194
 CPU:        0   CR30: effb8000 CR31: 1033e000
 ORIG_R28: 102f3810
 IAOQ[0]: ncr53c8xx_release+0xc/0x20
 IAOQ[1]: ncr_detach+0x0/0x364
 RP(r2): ncr53c8xx_release+0x10/0x20




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] zalon/ncr53c720 crashes K460  (parisc port) on bootup.
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On Fri, Sep 26, 2003 at 09:43:08PM -0600, Ryan Bradetich wrote:
> ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
> ncr53c720-0: suspicious SCSI data while resetting the BUS.
> ncr53c720-0: dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,atn,msg,c/d,i/o =
> 0x3fdff00, expecting 0x100

3fdff00 is
rst set
d7-d0 set
dp0 clear
d8-d15 set
dp1 clear

SCSI is even parity, right?  So we're seeing all 1s on the bus when
we're expecting all 0s, but there's no parity problem.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: zalon/ncr53c720 crashes K460  (parisc port) on bootup.
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On Fri, 2003-09-26 at 22:43, Ryan Bradetich wrote:
> The zalon/ncr53c720 combination is fatal during booting on my K460
> parisc box.  I believe the scsi termination is correct since I performed
> a fresh debian install on the scsi disks and I can boot from then every
> time I use a 2.4 kernel :)  This problem appeared with with the latest
> cvs kernel from parisc-linux.org.
> 
> This system does boot and function when I do not compile zalon support
> into the kernel and use a nfsroot.
> 
> I can provide addtional information and test patches (or give access to
> this system) if requested.
> 
> Any thoughts or feedback appreciated!  

I'm not familiar with how the K class is wired.  However, the ncr53c8xx
driver that underlies the zalon720 is extremely ratty.  On my C360, I
can precipitate exactly this panic just by inserting the zalon7xx module
with an unterminated bluefish card.

Although we really need to track this down and fix it (which I'll look
into doing), all it would do would be to detach the driver correctly at
that point (so you still wouldn't see any devices).  Could you look at
your SCSI setup to see if the driver has a point (i.e. is there a
termination or cabling problem)?

James




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Subject: [parisc-linux] Re: zalon/ncr53c720 crashes K460  (parisc port) on bootup.
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Xref: news.gmane.org gmane.linux.ports.parisc:19638

On Fri, 2003-09-26 at 22:43, Ryan Bradetich wrote:
> The zalon/ncr53c720 combination is fatal during booting on my K460
> parisc box.  I believe the scsi termination is correct since I performed
> a fresh debian install on the scsi disks and I can boot from then every
> time I use a 2.4 kernel :)  This problem appeared with with the latest
> cvs kernel from parisc-linux.org.
> 
> This system does boot and function when I do not compile zalon support
> into the kernel and use a nfsroot.
> 
> I can provide addtional information and test patches (or give access to
> this system) if requested.
> 
> Any thoughts or feedback appreciated!  

This should fix the panic, but it simply detaches correctly.

James

===== drivers/scsi/ncr53c8xx.c 1.37 vs edited =====
--- 1.37/drivers/scsi/ncr53c8xx.c	Thu Sep 25 20:08:49 2003
+++ edited/drivers/scsi/ncr53c8xx.c	Sat Sep 27 09:44:21 2003
@@ -8585,12 +8585,17 @@
 
 int ncr53c8xx_release(struct Scsi_Host *host)
 {
+	ncb_p np;
+	struct host_data *host_data;
+
 #ifdef DEBUG_NCR53C8XX
-printk("ncr53c8xx : release\n");
+	printk("ncr53c8xx : release\n");
 #endif
-     ncr_detach(((struct host_data *) host->hostdata)->ncb);
+	if((host_data = (struct host_data *)host->hostdata) &&
+	   host_data->ncb)
+		ncr_detach(host_data->ncb);
 
-     return 1;
+	return 1;
 }
 

===== drivers/scsi/zalon.c 1.11 vs edited =====
--- 1.11/drivers/scsi/zalon.c	Thu Sep 25 20:08:51 2003
+++ edited/drivers/scsi/zalon.c	Sat Sep 27 10:31:52 2003
@@ -146,7 +146,7 @@
 
 	host = ncr_attach(&zalon7xx_template, unit, &device);
 	if (!host)
-		goto fail;
+		goto out;
 
 	if (request_irq(irq, ncr53c8xx_intr, SA_SHIRQ, dev->dev.bus_id, host)) {
 		printk(KERN_ERR "%s: irq problem with %d, detaching\n ",
@@ -169,6 +169,7 @@
 	free_irq(irq, host);
  fail:
 	ncr53c8xx_release(host);
+ out:
 	return error;
 }
 



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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: zalon/ncr53c720 crashes K460  (parisc port) on bootup.
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On Sat, Sep 27, 2003 at 10:45:50AM -0500, James Bottomley wrote:
> This should fix the panic, but it simply detaches correctly.

Necessary, but not sufficient, I think ... look at ncr_attach().
It doesn't zero hostdata->ncb.  Adding that is easy enough ... I'm about
to commit a patch to the parisc tree containing this fix.

> ===== drivers/scsi/ncr53c8xx.c 1.37 vs edited =====
> --- 1.37/drivers/scsi/ncr53c8xx.c	Thu Sep 25 20:08:49 2003
> +++ edited/drivers/scsi/ncr53c8xx.c	Sat Sep 27 09:44:21 2003
> @@ -8585,12 +8585,17 @@
>  
>  int ncr53c8xx_release(struct Scsi_Host *host)
>  {
> +	ncb_p np;
> +	struct host_data *host_data;
> +
>  #ifdef DEBUG_NCR53C8XX
> -printk("ncr53c8xx : release\n");
> +	printk("ncr53c8xx : release\n");
>  #endif
> -     ncr_detach(((struct host_data *) host->hostdata)->ncb);
> +	if((host_data = (struct host_data *)host->hostdata) &&
> +	   host_data->ncb)
> +		ncr_detach(host_data->ncb);
>  
> -     return 1;
> +	return 1;
>  }
>  
> 
> ===== drivers/scsi/zalon.c 1.11 vs edited =====
> --- 1.11/drivers/scsi/zalon.c	Thu Sep 25 20:08:51 2003
> +++ edited/drivers/scsi/zalon.c	Sat Sep 27 10:31:52 2003
> @@ -146,7 +146,7 @@
>  
>  	host = ncr_attach(&zalon7xx_template, unit, &device);
>  	if (!host)
> -		goto fail;
> +		goto out;
>  
>  	if (request_irq(irq, ncr53c8xx_intr, SA_SHIRQ, dev->dev.bus_id, host)) {
>  		printk(KERN_ERR "%s: irq problem with %d, detaching\n ",
> @@ -169,6 +169,7 @@
>  	free_irq(irq, host);
>   fail:
>  	ncr53c8xx_release(host);
> + out:
>  	return error;
>  }

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Xref: news.gmane.org gmane.linux.ports.parisc:19640

Hello Grant,

Grant Grundler wrote:

>On Fri, Sep 26, 2003 at 05:46:35PM +0200, Joel Soete wrote:
>  
>
>>>It means either other CPU never got the interrupt (locked up
>>>with I-bit off) or the "unstarted_count" isn't coherent between the CPUs.
>>>      
>>>
>>hmm how could I verify this hypothesis?
>>    
>>
>
>TOC the machine, "ser pim" and look at PSW in TOC Info for each CPU.
>bit 0 is the I-Bit IIRC.
>  
>
Here is such TOC:
PROCESSOR PIM INFORMATION

Original Product Number:  A3639C
Current Product Number:   A3639C


-------  Processor 1 HPMC Information - PDC Version: 41.28^@  ------

Timestamp =    Tue Mar  11 18:07:11 GMT 2003    (20:03:03:11:18:07:11)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0x0000082000ff6242  0x0000000000000000
       0x1800082011016312  0xcb81000000000000
       0x0000087000ff6292  0x000000ffff800000
       0x6000082013016062  0x2002000000080000
       0x6000082013016072  0x0000000000080000
       0x7000082013016082  0x0000000000192200
       0x6000082013036062  0x2001000000082004
       0x6000082013036072  0x0000000000082000
       0x7000082013036082  0x0000000000992600
       0x6000082070006062  0x0000000000080000
       0x6000082070006072  0x0000000000080000
       0x7000082070006082  0x0000000000192200
       0x6000082070016062  0x0000000000000800
       0x6000082070016072  0x0000000000000800
       0x7000082070016082  0x00000000001a4400
       0x0000080080006310  0x0000000000000001
       0x7000082082006333  0x0000000000b92200
       0x7000082082016333  0x0000000000b92200
       0x000008008000631f  0x0000000000000000
       0x0000082000ff6452  0x0000000000000000
       0x0000082000ff6402  0x0000000000000000
       0x0000080080006300  0x0000000000000001
       0x7000082082006333  0x0000000000b92200
       0x7000082382006343  0x0000000000070200
       0x7000082382016343  0x0000000000070200
       0x7000082382026343  0x0000000000070200
       0x7000082382046343  0x0000000000070200
       0x7000082382056343  0x0000000000070200
       0x7000082382086343  0x0000000000070200
       0x70000823820a6343  0x0000000000070200
       0x70000823820c6343  0x0000000000070200
       0x7000082082016333  0x0000000000b92200
       0x7000082382106343  0x0000000000070200
       0x7000082382126343  0x0000000000070200
       0x7000082382146343  0x0000000000070200
       0x7000082382186343  0x0000000000070200
       0x70000823821a6343  0x0000000000070200
       0x70000823821c6343  0x0000000000070200
       0x0000080089006200  0x0000000000000000
       0x0000082389006200  0x0000000000000000
       0x0000080086006200  0x0000000000000000
       0x000008008000630f  0x0000000000000000


General Registers 0 - 31
00-03  0000000000000000  00000000104f6380  000000001014acb4  
00000000104f3b80
04-07  000000008f029000  0000000010423688  000000008f0b8000  
0000000010000000
08-11  0000000013484f70  0000000013481e48  000000007f0b8b25  
000000001054ebc0
12-15  00000000000e1984  000000001054ec20  000000008f0a40c0  
000000008f0bf708
16-19  0000000013481e48  0000000000000000  00000000faf005e0  
0000000000000580
20-23  000000001054ebc0  00000000002f7465  00000000003f45a2  
000fe051ffc07eb8
24-27  000000007f029b27  00000000000e1984  000000008f0a40c0  
00000000104f3b80
28-31  000000000007f029  003f81480007f029  000000008f0e4f40  
0000000000008ba3


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
08-11  0000000000000016  0000000000000000  00000000000000c0  
000000000000002b
12-15  0000000000000000  0000000000000000  0000000000107000  
ffe0000000000000
16-19  00000024643cebe8  0000000000000000  000000001014acec  
0000000037dd3f61
20-23  0000000000000600  00000000000e1984  000000ff0804c70f  
c000000000000000
24-27  0000000000427000  000000007f04b000  0000000000041020  
000000ffff95c810
28-31  5555555555555555  5555555555555555  000000008f0e4000  
0000000010560000

Space Registers 0 - 7
00-03  00000580          00000580          00000000          00000580
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x000000001014acf0
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0010c03b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0xfffffffffed25000


Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
04-07  000000001050eec0  00000000104f3b80  0000000000000002  
000000001049d248
08-11  00000000104f3b80  0000000000000802  00000000104be588  
000000008fac8000
12-15  0000000000000000  0000000000000000  000000001016ace8  
00000000103ad6e0
16-19  00000000000009ca  000000008f7cb000  000000000800000f  
000000001049d250
20-23  000000001050eec0  00000000104f3b80  00000000003f45a2  
000000000000ba2e
24-27  0000999900000000  000099997fac8b70  000000007fac8b78  
000000000bebc200
28-31  0000000000000001  00000000ff915e20  0000000010165bf4  
00000000104f3b80


Check Summary                = 0xcb81000000000000
Available Memory             = 0x0000000100000000
CPU Diagnose Register 2      = 0x0301010800802004
CPU Status Register 0        = 0x2640c24000000000
CPU Status Register 1        = 0x8000200000000000
SADD LOG                     = 0xf8efdb00003fd800
Read Short LOG               = 0xc18200ff80000002



-----------------  DEW 1 HPMC Information -  ------

Timestamp =    Tue Mar  11 18:07:11 GMT 2003    (20:03:03:11:18:07:11)

Runway Control Log Reg            = 0x00927b0000000000
Runway Address Data Log Reg Odd   = 0xc0aa1010c4a61010
Runway Address Data Log Reg Even  = 0xc8a61010cca61010
Runway Address Log Reg            = 0x00000000000000f4
Runway Broad Error Log Reg        = 0x000000000000005c

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
                ERR_ERROR       X                X

Merced Bus Requestor Address      = 0x0000000000000000
Merced Bus Target Address         = 0x0000000000000000
Merced Bus Responder Address      = 0x0000000000000000
Merced Error Status Reg           = 0x2002000000080000
Merced Error Overflow Reg         = 0x0000000000080000
Merced AERR Addr1 Log Reg         = 0x00006000ff86fdc0
Merced AERR Addr2 Log Reg         = 0x00008000078fff08
Merced DERR  Log Reg              = 0x0001000000000000
Merced Error Syndrome Reg         = 0x00000000000000c0


-------  Processor 1^@ LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



-------  Processor 1^@ TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  
0000000000000000


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  
0000000000000000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000000000000
CPU State                    = 0x00000000



-------  Processor 3 HPMC Information - PDC Version: 41.28^@  ------

Timestamp =    Tue Mar  11 18:07:11 GMT 2003    (20:03:03:11:18:07:11)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0x0000082000ff6242  0x0000000000000000
       0x1800082011036322  0xcb81800000000000
       0x0000082000ff6452  0x0000000000000000
       0x0000082000ff6402  0x0000000000000000


General Registers 0 - 31
00-03  0000000000000000  0000000010502b80  00000000101161cc  
00000000103ef0f8
04-07  000000000800000f  0000000000000002  0000000000000000  
00000000104f3b80
08-11  00000000103ef0f8  00000000103ef0f8  000000001038c43c  
000000001038af08
12-15  0000000000000001  0000000000000001  0000000000000000  
000000001038e004
16-19  000000001038e018  000000008f7cc180  0000000000000002  
0000000000000001
20-23  000000000000702c  0000000010423078  00000000104f4380  
0000000000000001
24-27  0000000000000116  000000001038c43c  00000000103ef130  
00000000104f3b80
28-31  0000000000000000  000000008f0353b0  000000008f0353c0  
0000000000008ba3


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
08-11  0000000000000018  0000000000000000  00000000000000c0  
000000000000003d
12-15  0000000000000000  0000000000000000  0000000000107000  
ffe0000000000000
16-19  000000246412e91b  0000000000000000  00000000101162d0  
000000008e605e8d
20-23  0000000000000600  0000000000000000  000000000806060f  
0000000000000000
24-27  0000000000427000  000000007f03e000  0000000000041020  
000000ffff95c810
28-31  000000ffff95c810  5555555555555555  000000008f034000  
0000000000008020

Space Registers 0 - 7
00-03  00000600          00000000          00000000          00000600
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x00000000101162d4
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030000d
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffed2d000
System Requestor Address     = 0x000000fffed2c000


Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
04-07  000000001050eec0  00000000104f3b80  0000000000000002  
000000001049d248
08-11  00000000104f3b80  0000000000000802  00000000104be588  
000000008fac8000
12-15  0000000000000000  0000000000000000  000000001016ace8  
00000000103ad6e0
16-19  00000000000009ca  000000008f7cb000  000000000800000f  
000000001049d250
20-23  000000001050eec0  00000000104f3b80  0000000000000000  
000000000000ba2e
24-27  0000999900000000  000099997fac8b70  000000007fac8b78  
000000000bebc200
28-31  0000000000000001  00000000ff915e20  0000000010165bf4  
00000000104f3b80


Check Summary                = 0xcb81800000000000
Available Memory             = 0x0000000100000000
CPU Diagnose Register 2      = 0x0301030800802004
CPU Status Register 0        = 0x3640c24000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x48e0000000000002
Read Short LOG               = 0xc18080ff80080014



-----------------  DEW 3 HPMC Information -  ------

Timestamp =    Tue Mar  11 18:07:11 GMT 2003    (20:03:03:11:18:07:11)

Runway Control Log Reg            = 0x0006720000000000
Runway Address Data Log Reg Odd   = 0xfffffffffffc3f00
Runway Address Data Log Reg Even  = 0xfffffffffffc3f00
Runway Address Log Reg            = 0x0000000000000048
Runway Broad Error Log Reg        = 0x00000000000000dc

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X             ERR_ERROR       X            X   X

Merced Bus Requestor Address      = 0x0000000000000000
Merced Bus Target Address         = 0x0000000000000000
Merced Bus Responder Address      = 0x0000000000000000
Merced Error Status Reg           = 0x2001000000082004
Merced Error Overflow Reg         = 0x0000000000082000
Merced AERR Addr1 Log Reg         = 0x00c0000000300000
Merced AERR Addr2 Log Reg         = 0x0000000000f00000
Merced DERR  Log Reg              = 0x00c1100000000000
Merced Error Syndrome Reg         = 0x0000000052000000


-------  Processor 3^@ LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



-------  Processor 3^@ TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  
0000000000000000


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  
0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  
0000000000000000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000000000000
CPU State                    = 0x00000000


--------------  Memory Error Log Information  --------------

Bus 0 Log Information

Timestamp =    Tue Mar  11 18:07:11 GMT 2003    (20:03:03:11:18:07:11)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
                ERR_ERROR       X                X

Bus Requestor Address      = 0x0000000000000000
Bus Target Address         = 0x0000000000000000
Bus Responder Address      = 0x0000000000000000

Error Status Reg           = 0x0000000000080000
Error Overflow Reg         = 0x0000000000080000
AERR Address 1 Log Reg     = 0x0000000000000000
AERR Address 2 Log Reg     = 0xf800000000000000
FERR  Log Reg              = 0x0000000000000000
DERR  Log Reg              = 0x000133000051cdc0
Error Syndrome Reg         = 0x0000000000000000



 Address/Control Parity Error Registers

   Address/Control Parity Error Bit (AE) Not Set



Bus 1 Log Information

Timestamp =    Tue Mar  11 18:07:11 GMT 2003    (20:03:03:11:18:07:11)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_TIMEOUT   X               X

Bus Requestor Address      = 0xfffffffffed2c000
Bus Target Address         = 0x00000000f000a000
Bus Responder Address      = 0x0000000000000000

Error Status Reg           = 0x0000000000000800
Error Overflow Reg         = 0x0000000000000800 
AERR Address 1 Log Reg     = 0x08006000f000a000 
AERR Address 2 Log Reg     = 0x6000b0003f700a10
FERR  Log Reg              = 0x0000000000000000
DERR  Log Reg              = 0x0000000000000000
Error Syndrome Reg         = 0x0000000000000000



 Address/Control Parity Error Registers 

   Address/Control Parity Error Bit (AE) Not Set



------------  I/O Module Error Log Information  ------------

Summary of IO subsystem log entries
-----------------------------------
                        Phys Loc             Vendor  Device   Severity
Description             (hex)                 Id      Id      CORR UNC 
FE  CW
-----------             -----                ------  ------   
----------------
System Bus Adapter SB  0x000000ffffffff82   0x103c  0x1050              X
System Bus Adapter RP  0x000000ffff0dff83   0x103c  0x1051              X
System Bus Adapter RP  0x000000ffff0eff83   0x103c  0x1051              X
System Bus Adapter RP  0x000101ffff06ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000101ffff02ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000101ffff01ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000101ffff04ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000101ffff05ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000101ffff03ff83   0x103c  0x1051              X
System Bus Adapter SB  0x000000ffffffff82   0x103c  0x1050              X
System Bus Adapter RP  0x000202ffff0cff83   0x103c  0x1051              X
System Bus Adapter RP  0x000202ffff0aff83   0x103c  0x1051              X
System Bus Adapter RP  0x000202ffff09ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000202ffff0bff83   0x103c  0x1051              X
System Bus Adapter RP  0x000202ffff08ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000202ffff07ff83   0x103c  0x1051              X


Detail display of IO subsystem log entries
------------------------------------------

System Bus Adapter -- System Bus Interface
------------------------------------------

Timestamp =    Tue Mar  11 18:09:10 GMT 2003    (20:03:03:11:18:09:10)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X       X     ERR_ERROR       X                X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0xfffffffffed00000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000007ff0034

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Tue Mar  11 18:09:12 GMT 2003    (20:03:03:11:18:09:12)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X      

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff0dff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Tue Mar  11 18:09:12 GMT 2003    (20:03:03:11:18:09:12)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X      
 
IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff0eff83

System Bus Adapter --       Rope Interface
------------------------------------------
Timestamp =    Tue Mar  11 18:09:12 GMT 2003    (20:03:03:11:18:09:12)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000101ffff06ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Tue Mar  11 18:09:12 GMT 2003    (20:03:03:11:18:09:12)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000101ffff02ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Tue Mar  11 18:09:12 GMT 2003    (20:03:03:11:18:09:12)
[...]

Well that for an older test but I don't know yet what could be the PSW 
(sorry I haven't found more doc about TOC output)?

>On second thought, I'm skeptical unstarted_count isn't coherent
>since it's a kernel global as well (like jiffies).
>
>  
>
>>>You need to find out who is using smp_call_function() and which function
>>>they are trying to invoke. I suspect it's coming from mm/slab.c but
>>>would know which of the three it might be.
>>>      
>>>
>>Effectively I don't find another place where it is called. And so add a
>>printk in each function calling smp_call_function_all_cpus() finaly.
>>
>>That is allowing me to notice severall call to kmem_tune_cpucache() (7 exactly)
>>(and not other) but don't get any more 'SMP CALL FUNCTION TIMED OUT (CPU=1)'
>>:(
>>(i presume that, as previously, the system crash before having the opportunity
>>to flush its buffer?)
>>
>>What do you think?
>>    
>>
>
>Could be.
>Add mdelay(100) (or higher) after the lines of output you've added.
>The works if it's a functional problem that's not timing dependent.
>  
>
Because during another test I reach to boot this N (well only during 
half an hour) in SMP, I am quite sure that is such a problem  somewhere 
(the problem is to find where).

>Otherwise setup kernel crash dump and use tools from bruno/phi to view
>contents of the kernel message buffer.
>
I already thought to this (because I test severall bruno's patch), but I 
have two pb to implement it:
a) my system has 2Gb (4* 512Mb iirc) of ram and I don't see how to 
reconfigure the disk with at least 2Gb of swap(== dump area iirc)?
The disk slicing being:
    Name        Flags      Part Type  FS Type          [Label]        
Size (MB)
 ------------------------------------------------------------------------------
    sda1        Boot        Primary   Linux/PA-RISC 
boot                  67.56
    sda2                    Primary   Linux swap                         
135.11
    sda3                    Primary   Linux ext3                         
130.89
    sda5                    Logical   Linux ext3                        
1760.56
    sda6                    Logical   Linux ext3                         
261.77
    sda7                    Logical   Linux ext3                         
130.89
    sda8                    Logical   Linux ext3                         
130.89
    sda9                    Logical   Linux ext3                        
1574.79

sda5 being the root fs must be into the 2Gb limits iirc but I am not 
quiet sure that swap also has have to be in those limits (in fact it is 
just like this because of the very first puffin :) (now obsolete) 
install instruction?

b) afaik p4 is not yet publicaly realesed?

Thanks in advance for your additional help,
    Joel



From - Thu Nov 08 21:29:21 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: zalon/ncr53c720 crashes K460  (parisc port) on bootup.
Date: Sat, 27 Sep 2003 19:37:56 +0100
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On Sat, Sep 27, 2003 at 10:45:50AM -0500, James Bottomley wrote:
> This should fix the panic, but it simply detaches correctly.

We both missed it.  This is why it's panicing:

        host = ncr_attach(&zalon7xx_template, unit, &device);
        if (!host)
                goto fail;
 fail:
        ncr53c8xx_release(host);
        return error;

ie we're calling ncr53c8xx_release(NULL) so both your & my patch fail
to fix the problem.  This looks best to me:

+++ drivers/scsi/ncr53c8xx.c    27 Sep 2003 18:31:13 -0000
@@ -8855,11 +8855,14 @@ struct Scsi_Host * __init ncr_attach(str
 
 int ncr53c8xx_release(struct Scsi_Host *host)
 {
-       struct host_data *host_data = (struct host_data *)host->hostdata;
+       struct host_data *host_data;
 #ifdef DEBUG_NCR53C8XX
        printk("ncr53c8xx: release\n");
 #endif
-       if (host_data->ncb)
+       if (!host)
+               return 1;
+       host_data = (struct host_data *)host->hostdata;
+       if (host_data && host_data->ncb)
                ncr_detach(host_data->ncb);
        return 1;
 }

and it does fix the problem.  Maybe it's too much checking, but I'm not
interested in tracking down bugs like this again ;-)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] Re: zalon/ncr53c720 crashes K460  (parisc port) on bootup.
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On Sat, Sep 27, 2003 at 07:37:56PM +0100, Matthew Wilcox wrote:
> -       struct host_data *host_data = (struct host_data *)host->hostdata;
> +       struct host_data *host_data;
>  #ifdef DEBUG_NCR53C8XX
>         printk("ncr53c8xx: release\n");
>  #endif
> -       if (host_data->ncb)
> +       if (!host)
> +               return 1;
> +       host_data = (struct host_data *)host->hostdata;
> +       if (host_data && host_data->ncb)
>                 ncr_detach(host_data->ncb);
>         return 1;
>  }
> 
> and it does fix the problem.  Maybe it's too much checking, but I'm not
> interested in tracking down bugs like this again ;-)

Or better just stop calling ncr53c8xx_release if ncr_attach failed..



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Subject: [parisc-linux] Re: zalon/ncr53c720 crashes K460  (parisc port) on bootup.
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On Sat, 2003-09-27 at 13:37, Matthew Wilcox wrote:
> On Sat, Sep 27, 2003 at 10:45:50AM -0500, James Bottomley wrote:
> > This should fix the panic, but it simply detaches correctly.
> 
> We both missed it.  This is why it's panicing:
> 
>         host = ncr_attach(&zalon7xx_template, unit, &device);
>         if (!host)
>                 goto fail;
>  fail:
>         ncr53c8xx_release(host);
>         return error;
> 
> ie we're calling ncr53c8xx_release(NULL) so both your & my patch fail
> to fix the problem.  This looks best to me:

No, I fixed that...that was changed to goto out; in my patch, and out
was just before the return (i.e. no longer do the release).

James




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Subject: [parisc-linux] Re: zalon/ncr53c720 crashes K460  (parisc port) on bootup.
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On Sat, Sep 27, 2003 at 01:58:06PM -0500, James Bottomley wrote:
> No, I fixed that...that was changed to goto out; in my patch, and out
> was just before the return (i.e. no longer do the release).

Oops, I didn't scroll all the way down.  Anyway, we have a tradition
of allowing, eg, kfree(NULL) to succeed, so it's a little more robust.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi.  I came up with a great improvement to how we manage upstream version
imports.  Unfortunately, it hasn't worked ;-)  The cvs-snapshot script
reports some discrepancies between the repository and what it thinks it
checked in.

I'd appreciate it if people would not check in anything until this
is fixed.  Sorry for the inconvenience.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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OK, think I have it figured out.  I experimented on
arch/parisc/vmlinux.lds.S since I know both we & Linus removed it.
The version in the linux-2.6.0-test6/_cvs-snapshot-linux-2.6/linux-2.6
tree was cvs revision 1.3 which was the same one tagged with the `linus'
symbolic tag.  Version 1.4 was where we deleted it, but the linus tag
never got moved (presumably because cvs tag -F won't move a tag to a
deleted revision).  So cvs up -rlinus still gets deleted files.

How to fix this?  I'm not at all sure.  I think there's an interesting
question about whether a deleted file should have no linus tag or a
linus tag on the deleted revision.

I'm going to go ahead and merge the 2.6.0-test6 upstream into the trunk
since there's nothing wrong with what's checked in (as long as I don't
try to use the `linus' tag for anything).

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sun, Sep 28, 2003 at 03:59:25AM +0100, Matthew Wilcox wrote:
> I'd appreciate it if people would not check in anything until this
> is fixed.  Sorry for the inconvenience.

Tree seems good now.  operations involving the linus tag may not work
as you expect... but go ahead and commit stuff.  Particularly to fix
sched_clock().

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] [owner@bugs.debian.org: Bug#204844 acknowledged by developer (Re: Bug#204844: xlibs: libXt.so needs to be built with gcc 3.3.x for HPPA)]
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FYI -  hppa xfree86 libs should be usable again in "testing" release.
(eg xpdf and related stuff should be working).
Please post issues if it's not.
I can rebuild xfree86-4.2.1-11 bits if that is needed.
I'll be removing the 4.2.1-9 hppa.debs in the future when it's
clear they aren't needed.

enjoy!
grant

(kudos to branden+et al who enabled this!)

----- Forwarded message from Debian Bug Tracking System <owner@bugs.debian.org> -----

Date: Sat, 27 Sep 2003 19:56:23 -0500
From: Branden Robinson <branden@debian.org>
To: 204844-done@bugs.debian.org
Subject: Re: Bug#204844: xlibs: libXt.so needs to be built with gcc 3.3.x for HPPA

On Wed, Aug 27, 2003 at 09:57:00PM -0600, Grant Grundler wrote:
> On Wed, Aug 27, 2003 at 09:27:45PM -0500, Branden Robinson wrote:
> ...
> > My feeling is that our efforts are best spent on getting a newer 4.2.1
> > package into testing at this point.
>=20
> Agreed.
>=20
> I've placed a full set of "hand crafted" 4.2.1-9 hppa debs on:
> 	http://gsyprf11.external.hp.com/hppa/xfree86-4.2.1-9/
>=20
> Built with gcc 3.3.1 and current "testing" binutils.
> Works For Me (tm).
>=20
> These are built by hacking the Makefile "world" target to not rebuild
> everything from scratch and iteratively fix up the two problems by hand.
> source/build tree is intact on gsyprf11 in case someone wants a copy.

xfree86 4.2.1-11 entered Debian testing on Friday.

Closing this report.

--=20
G. Branden Robinson                |    Freedom is kind of a hobby with me,
Debian GNU/Linux                   |    and I have disposable income that
branden@debian.org                 |    I'll spend to find out how to get
http://people.debian.org/~branden/ |    people more of it. -- Penn Jillette

----- End forwarded message -----


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Subject: [parisc-linux] zalon/ncr53c720 (linux-2.6.0-test5-pa22) broken on C110
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Hi all,

I read well the thread about the pb on K460 and so try to test it on my 
C110 model but is failed to boot:
2.6.0-test5-pa22
[...]
zalon_probe: Zalon vers field is 0x1, IRQ 
34                                   
ncr53c720-0: rev 0xf irq 
34                                                    
ncr53c720-0: ID 7, Fast-10, Parity Checking, 
Differential                      
ncr53c720-0: suspicious SCSI data while resetting the 
BUS.                     
ncr53c720-0: dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,atn,msg,c/d,i/o = 
0x3fdff000, expecting 0x100
ncr53c720-0: FATAL ERROR: CHECK SCSI BUS - CABLES, TERMINATION, DEVICE 
POWER etc!
ncr53c720-0: 
detaching...                                                      
53c700: Version 2.8 By 
James.Bottomley@HansenPartnership.com                   
scsi1: 53c710 rev 
2                                                            
scsi1 : LASI SCSI 
53c700                                                       
[...]
VFS: Cannot open root device "sda5" or unknown-block(2,0)
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on unknown-block(2,0)

I am sure there is no hw pb because after that test I can always reboot 
with 2.6.0-test5-PA6:
2.6.0-test5-pa6
[...]
zalon_scsi_callback: Zalon vers field is 0x1, IRQ 34
ncr53c720-0: rev 0xf on pci bus 0 device 0 function 0 irq 34
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3b-20010512
Using anticipatory scheduling io scheduler
  Vendor: SEAGATE   Model: ST34371W          Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST34371W          Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
st: Version 20030811, fixed bufsize 32768, s/g segs 256
ncr53c720-0-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 >
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
ncr53c720-0-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdb: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sdb: drive cache: write back
 sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 sdb6 sdb7 sdb8 sdb9 >
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 5, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 6, lun 0,  type 0
[...]

Can somebody could help me to find patches (step by step) applied on 
this driver from -pa6 to -pa22?

Thanks in advance,
    Joel




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Subject: [parisc-linux] Re: zalon/ncr53c720 (linux-2.6.0-test5-pa22) broken on C110
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On Sun, Sep 28, 2003 at 09:00:02AM +0000, Joel Soete wrote:
> I am sure there is no hw pb because after that test I can always reboot 
> with 2.6.0-test5-PA6:

This is good to hear.

> Can somebody could help me to find patches (step by step) applied on 
> this driver from -pa6 to -pa22?

Yes.  Could you start with -pa18 (or -pa20)?
http://cvs.parisc-linux.org/download/linux-2.6/patch-2.6.0-test5-pa18.gz
(or cvs up -rCVS260_TEST5_PA18)

The driver is rev 1.5 in -test5-pa6.  rev 1.6 is in -test5-pa18.
After -test5-pa20, we don't have anyautotagged stuff, but let's start
with -pa18.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] 2.6.0-test6-pa0 undefined references
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Hi,

I can't compine 2.6.0-test6-pa0, compiling stops with the following
error message:


kernel/built-in.o(.text.try_to_wake_up+0xf8): In function
`try_to_wake_up':
: undefined reference to `sched_clock'
kernel/built-in.o(.text.schedule+0x7c): In function `schedule':
: undefined reference to `sched_clock'
kernel/built-in.o(.text.copy_process+0x4e0): In function `copy_process':
: undefined reference to `sched_clock'
make: *** [.tmp_vmlinux1] Error 1



The same config compiled fine with 2.6.0-test4-pa8.

Last tested with CVS checkout of 5 minutes ago.


PS: I also can't compile smbfs in the kernel, but as module:
 (error about undefined reference to `low2highuid`)


Thanks, Max


PS: .config will be send on request


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Subject: Re: [parisc-linux] 2.6.0-test6-pa0 undefined references
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On Sun, Sep 28, 2003 at 03:44:14PM +0100, M. Grabert wrote:
> I can't compine 2.6.0-test6-pa0, compiling stops with the following
> error message:

Yes, that's expected for -pa0.  It only gets -pa1 once these kinds of
problems are fixed ;-)

> PS: I also can't compile smbfs in the kernel, but as module:
>  (error about undefined reference to `low2highuid`)

I'll look at that ...

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sun, 28 Sep 2003, Matthew Wilcox wrote:

> On Sun, Sep 28, 2003 at 03:44:14PM +0100, M. Grabert wrote:
> > I can't compine 2.6.0-test6-pa0, compiling stops with the following
> > error message:
>
> Yes, that's expected for -pa0.  It only gets -pa1 once these kinds of
> problems are fixed ;-)

Yes, that's why I didn't included my .config (since you just merged -test6
I assumed it's too early to blame it on my config ;)

I also just wanted to give you a hint what needs fixing *grin*

> > PS: I also can't compile smbfs in the kernel, but as module:
> >  (error about undefined reference to `low2highuid`)
>
> I'll look at that ...

Slan, Max


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Subject: Re: [parisc-linux] PALO do not start!
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Jacek Chmielewski wrote:

>Hi
>
>I managed to install Debian on my HP 9000/J200 box (I used DHCP server and
>netinstall lifimage). The installation procedure passed without problems. I
>created three partitions:
>/dev/sda1  *  1    4    16461  f0  Linux/PA-RISC boot
>/dev/sda2     5   34   123690  82  Linux swap
>/dev/sda3  * 35  277  1001889  83  Linux
>
it seems that sda3 stand well into the first 2gb of your disk?
Do you have severall disk on your system and so do boot on the right disk?
if your system 'autoboot', interupt it with [Esc]; the main menu would 
show you something like:
   Primary boot path:    core.FWSCSI.6.0
   Alternate boot path:  
core.FWSCSI.5.0                                                                     


>
>After the reboot I get the following result:
>
>Booting...
>Boot IO Dependent Code (IODC) revision 1
>HARD Booted.
>
>... and everything nothing happens. I assume that I should see PALO
>starting from the /dev/sda1 partition,
>
yes

> but it don't want to start.
>
>What could be possibly wrong?
>
>Is there any solution or workaround for this problem?
>
Try to restart your netinstall, in the second menu you should be able to 
go into a small shell.
There create first /mnt/BD in your ramdisk and so mount /dev/sda3 /mnt/DB.
verify first the contents of /mnt/DB/etc/palo.conf.

hth,
    Joel



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Subject: Re: [parisc-linux] Re: zalon/ncr53c720 (linux-2.6.0-test5-pa22) broken
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Matthew Wilcox wrote:

>On Sun, Sep 28, 2003 at 09:00:02AM +0000, Joel Soete wrote:
>  
>
>>I am sure there is no hw pb because after that test I can always reboot 
>>with 2.6.0-test5-PA6:
>>    
>>
>
>This is good to hear.
>
>  
>
>>Can somebody could help me to find patches (step by step) applied on 
>>this driver from -pa6 to -pa22?
>>    
>>
>
>Yes.  Could you start with -pa18 (or -pa20)?
>http://cvs.parisc-linux.org/download/linux-2.6/patch-2.6.0-test5-pa18.gz
>
Thanks Matthew,
(why didn't I think myself ;) )

>(or cvs up -rCVS260_TEST5_PA18)
>
>The driver is rev 1.5 in -test5-pa6.  rev 1.6 is in -test5-pa18.
>After -test5-pa20, we don't have anyautotagged stuff, but let's start
>with -pa18.
>  
>
Ok I will look and advise you,

Joel




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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 willy
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On Sat, Sep 27, 2003 at 01:24:49AM -0600, Matthew Wilcox wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	willy	03/09/27 01:24:49
> 
> Modified files:
> 	drivers/scsi   : Makefile NCR_Q720.c ncr53c8xx.c 
> 	                 sym53c8xx_defs.h 
> 
> Log message:
> SIMULATED_INTFLY is always true for ncr720 chips, so remove the other case.

Only because I didn't get it to work properly when I did the original
720 support, iirc.  The chip does have INTFLY.  I _think_ INTFLY worked
a bit, but the driver tended to miss interrupts sometimes.  Could easily
have been a driver bug.  Was a long time ago now though, so I could be
misremembering.

Richard



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From: James Bottomley <James.Bottomley@steeleye.com>
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On Sun, 2003-09-28 at 11:56, Richard Hirst wrote:
> Only because I didn't get it to work properly when I did the original
> 720 support, iirc.  The chip does have INTFLY.  I _think_ INTFLY worked
> a bit, but the driver tended to miss interrupts sometimes.  Could easily
> have been a driver bug.  Was a long time ago now though, so I could be
> misremembering.

Actually, the 720 is bust in silicon.  The 770 has a properly working
intfly, but the 720's doesnt work reliably.  Actually, the Q720 board
this driver also drives is wired to have a special "intfly" from a board
register to get around the problem.

James




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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] pthread attributes and stack positions (gcc related?)
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I've noticed that we've regressed on a pthread test "tst-attr1" and it
seems to complain that our thread variables are stored outside the stack
that the thred "thinks" is it's stack.

The following code is a simplified case of tst-attr1.c in the glibc
testsuite. I would recommend that you look at the original code too.

The question I have is... how is this supposed to work? If anyone is
more cluefull than me on this I would appreciate a pointer in the right
direction :)

===
./test-attr
In child
&a=0xfaf00ac8, stackaddr=0x40046e60, stacksize=0xbffb91a0
./test-attr: pthread_attr_getstack returned range does not cover main's stack
In parent
&a=0xfaf00ac8, stackaddr=0x40046e60, stacksize=0xbffb91a0
./test-attr: pthread_attr_getstack returned range does not cover main's stack
===

The variable is definately on the process stack. The thread's stack 
address seems to be inside the libraries 'writable' space and the stack 
size is wrong (or uninitialized). Perhaps I should just be looking for 
arch-dependant init code that we might be missing.

=== tst-attr1 from glibc ===
tst-attr1: pthread_attr_getstack returned range does not cover main's stack
thread stack 0x40245000-0x40a44000 (0x7ff000)
thread guardsize 4096
thread stack 0x40a45000-0x40c44000 (0x1ff000)
thread guardsize 4096
thread stack 0x40245000-0x40444000 (0x1ff000)
thread guardsize 65536
===

Attached is the Makefile to build the simplified tst-attr1.c (requires
test-skeleton.c wrapper, included aswell) or rather test-attr.c

Input and thoughts appreciated. This failure in glibc is rather
orthogonal to the release of 2.3.2, I'm still concentrating on the last
sysdep cancel failure (last bug to fix before a working release).

c.



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all: test-attr.o
	gcc -lpthread -o test-attr test-attr.o
test:
	./test-attr
clean:
	rm -rf *.o
	rm -rf test-attr


--wRRV7LY7NUeQGEoC
Content-Type: text/x-csrc; charset=us-ascii
Content-Disposition: attachment; filename="tst-attr1.c"

/* pthread_getattr_np test.
   Copyright (C) 2003 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <errno.h>
#include <error.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include <stackinfo.h>

static void *
tf (void *arg)
{
  pthread_attr_t a, *ap, a2;
  int err;
  void *result = NULL;

  if (arg == NULL)
    {
      ap = &a2;
      err = pthread_attr_init (ap);
      if (err)
        {
          error (0, err, "pthread_attr_init failed");
          return tf;
        }
    }
  else
    ap = (pthread_attr_t *) arg;

  err = pthread_getattr_np (pthread_self (), &a);
  if (err)
    {
      error (0, err, "pthread_getattr_np failed");
      result = tf;
    }

  int detachstate1, detachstate2;
  err = pthread_attr_getdetachstate (&a, &detachstate1);
  if (err)
    {
      error (0, err, "pthread_attr_getdetachstate failed");
      result = tf;
    }
  else
    {
      err = pthread_attr_getdetachstate (ap, &detachstate2);
      if (err)
	{
	  error (0, err, "pthread_attr_getdetachstate failed");
	  result = tf;
	}
      else if (detachstate1 != detachstate2)
	{
	  error (0, 0, "detachstate differs %d != %d",
		 detachstate1, detachstate2);
	  result = tf;
	}
    }

  void *stackaddr;
  size_t stacksize;
  err = pthread_attr_getstack (&a, &stackaddr, &stacksize);
  if (err)
    {
      error (0, err, "pthread_attr_getstack failed");
      result = tf;
    }
  else if ((void *) &a < stackaddr
	   || (void *) &a >= stackaddr + stacksize)
    {
      error (0, 0, "pthread_attr_getstack returned range does not cover thread's stack");
      result = tf;
    }
  else
    printf ("thread stack %p-%p (0x%zx)\n", stackaddr, stackaddr + stacksize,
	    stacksize);

  size_t guardsize1, guardsize2;
  err = pthread_attr_getguardsize (&a, &guardsize1);
  if (err)
    {
      error (0, err, "pthread_attr_getguardsize failed");
      result = tf;
    }
  else
    {
      err = pthread_attr_getguardsize (ap, &guardsize2);
      if (err)
	{
	  error (0, err, "pthread_attr_getguardsize failed");
	  result = tf;
	}
      else if (guardsize1 != guardsize2)
	{
	  error (0, 0, "guardsize differs %zd != %zd",
		 guardsize1, guardsize2);
	  result = tf;
	}
      else
	printf ("thread guardsize %zd\n", guardsize1);
    }

  int scope1, scope2;
  err = pthread_attr_getscope (&a, &scope1);
  if (err)
    {
      error (0, err, "pthread_attr_getscope failed");
      result = tf;
    }
  else
    {
      err = pthread_attr_getscope (ap, &scope2);
      if (err)
	{
	  error (0, err, "pthread_attr_getscope failed");
	  result = tf;
	}
      else if (scope1 != scope2)
	{
	  error (0, 0, "scope differs %d != %d",
		 scope1, scope2);
	  result = tf;
	}
    }

  err = pthread_attr_destroy (&a);
  if (err)
    {
      error (0, err, "pthread_attr_destroy failed");
      result = tf;
    }

  if (ap == &a2)
    {
      err = pthread_attr_destroy (ap);
      if (err)
	{
	  error (0, err, "pthread_attr_destroy failed");
	  result = tf;
	}
    }

  return result;
}


static int
do_test (void)
{
  int result = 0;
  pthread_attr_t a;

  int err = pthread_attr_init (&a);
  if (err)
    {
      error (0, err, "pthread_attr_init failed");
      result = 1;
    }

  err = pthread_attr_destroy (&a);
  if (err)
    {
      error (0, err, "pthread_attr_destroy failed");
      result = 1;
    }

  err = pthread_getattr_np (pthread_self (), &a);
  if (err)
    {
      error (0, err, "pthread_getattr_np failed");
      result = 1;
    }

  int detachstate;
  err = pthread_attr_getdetachstate (&a, &detachstate);
  if (err)
    {
      error (0, err, "pthread_attr_getdetachstate failed");
      result = 1;
    }
  else if (detachstate != PTHREAD_CREATE_JOINABLE)
    {
      error (0, 0, "initial thread not joinable");
      result = 1;
    }

  void *stackaddr;
  size_t stacksize;
  err = pthread_attr_getstack (&a, &stackaddr, &stacksize);
  if (err)
    {
      error (0, err, "pthread_attr_getstack failed");
      result = 1;
    }
  else if ((void *) &a < stackaddr
	   || (void *) &a >= stackaddr + stacksize)
    {
      error (0, 0, "pthread_attr_getstack returned range does not cover main's stack");
      result = 1;
    }
  else
    printf ("initial thread stack %p-%p (0x%zx)\n", stackaddr,
	    stackaddr + stacksize, stacksize);

  size_t guardsize;
  err = pthread_attr_getguardsize (&a, &guardsize);
  if (err)
    {
      error (0, err, "pthread_attr_getguardsize failed");
      result = 1;
    }
  else if (guardsize != 0)
    {
      error (0, 0, "pthread_attr_getguardsize returned %zd != 0",
	     guardsize);
      result = 1;
    }

  int scope;
  err = pthread_attr_getscope (&a, &scope);
  if (err)
    {
      error (0, err, "pthread_attr_getscope failed");
      result = 1;
    }
  else if (scope != PTHREAD_SCOPE_SYSTEM)
    {
      error (0, 0, "pthread_attr_getscope returned %d != PTHREAD_SCOPE_SYSTEM",
	     scope);
      result = 1;
    }

  int inheritsched;
  err = pthread_attr_getinheritsched (&a, &inheritsched);
  if (err)
    {
      error (0, err, "pthread_attr_getinheritsched failed");
      result = 1;
    }
  else if (inheritsched != PTHREAD_INHERIT_SCHED)
    {
      error (0, 0, "pthread_attr_getinheritsched returned %d != PTHREAD_INHERIT_SCHED",
	     inheritsched);
      result = 1;
    }

  err = pthread_attr_destroy (&a);
  if (err)
    {
      error (0, err, "pthread_attr_destroy failed");
      result = 1;
    }

  pthread_t th;
  err = pthread_create (&th, NULL, tf, NULL);
  if (err)
    {
      error (0, err, "pthread_create #1 failed");
      result = 1;
    }
  else
    {
      void *ret;
      err = pthread_join (th, &ret);
      if (err)
	{
	  error (0, err, "pthread_join #1 failed");
	  result = 1;
	}
      else if (ret != NULL)
        result = 1;
    }

  err = pthread_attr_init (&a);
  if (err)
    {
      error (0, err, "pthread_attr_init failed");
      result = 1;
    }

  err = pthread_create (&th, &a, tf, &a);
  if (err)
    {
      error (0, err, "pthread_create #2 failed");
      result = 1;
    }
  else
    {
      void *ret;
      err = pthread_join (th, &ret);
      if (err)
	{
	  error (0, err, "pthread_join #2 failed");
	  result = 1;
	}
      else if (ret != NULL)
        result = 1;
    }

  err = pthread_attr_setguardsize (&a, 16 * sysconf (_SC_PAGESIZE));
  if (err)
    {
      error (0, err, "pthread_attr_setguardsize failed");
      result = 1;
    }

  err = pthread_create (&th, &a, tf, &a);
  if (err)
    {
      error (0, err, "pthread_create #3 failed");
      result = 1;
    }
  else
    {
      void *ret;
      err = pthread_join (th, &ret);
      if (err)
	{
	  error (0, err, "pthread_join #3 failed");
	  result = 1;
	}
      else if (ret != NULL)
        result = 1;
    }

  err = pthread_attr_destroy (&a);
  if (err)
    {
      error (0, err, "pthread_attr_destroy failed");
      result = 1;
    }

  return result;
}

#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"

--wRRV7LY7NUeQGEoC
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#include <errno.h>
#include <error.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

int main(void){	

	pthread_attr_t a;
	int result = 0;
	void *stackaddr = NULL;
	size_t stacksize = 0;
	int err;
	pid_t ret;
	
	ret = fork();
	if( ret != 0 ){
		wait(NULL);
		printf("In parent\n");
	} else if ( ret == -1 ) { 
		printf("Error forking.\n");
		exit(1);
	} else {
		printf("In child\n");
	}
	
	err = pthread_attr_init (&a);
	if (err){
		error(0, err, "pthread_attr_init failed");
		exit(1);
	}
	
	err = pthread_getattr_np (pthread_self (), &a);
	if (err){
		error (0, err, "pthread_getattr_np failed");
		exit(1);
	}
    
	err = pthread_attr_getstack (&a, &stackaddr, &stacksize);
	printf("&a=0x%x, stackaddr=0x%x, stacksize=0x%x\n",
        	(unsigned int)(&a),(unsigned int)stackaddr,stacksize);
	if (err){
		error (0, err, "pthread_attr_getstack failed");
		result = 1;
	} else if ((void *) &a < stackaddr || (void *) &a >= stackaddr + stacksize){
		error (0, 0, "pthread_attr_getstack returned range does not cover main's stack");
		result = 1;
	} else
	printf ("initial thread stack %p-%p (0x%zx)\n", 
		stackaddr, stackaddr + stacksize, stacksize);
	exit(0);
}



--wRRV7LY7NUeQGEoC
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Content-Disposition: attachment; filename="test-skeleton.c"

/* Skeleton for test programs.
   Copyright (C) 1998, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <errno.h>
#include <getopt.h>
#include <search.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/resource.h>
#include <sys/wait.h>
#include <sys/param.h>
#include <time.h>

/* The test function is normally called `do_test' and it is called
   with argc and argv as the arguments.  We nevertheless provide the
   possibility to overwrite this name.  */
#ifndef TEST_FUNCTION
# define TEST_FUNCTION do_test (argc, argv)
#endif

#ifndef TEST_DATA_LIMIT
# define TEST_DATA_LIMIT (64 << 20) /* Data limit (bytes) to run with.  */
#endif

#define OPT_DIRECT 1000
#define OPT_TESTDIR 1001

static struct option options[] =
{
#ifdef CMDLINE_OPTIONS
  CMDLINE_OPTIONS
#endif
  { "direct", no_argument, NULL, OPT_DIRECT },
  { "test-dir", required_argument, NULL, OPT_TESTDIR },
  { NULL, 0, NULL, 0 }
};

/* PID of the test itself.  */
static pid_t pid;

/* Directory to place temporary files in.  */
static const char *test_dir;

/* List of temporary files.  */
struct temp_name_list
{
  struct qelem q;
  const char *name;
} *temp_name_list;

/* Add temporary files in list.  */
static void
__attribute__ ((unused))
add_temp_file (const char *name)
{
  struct temp_name_list *newp
    = (struct temp_name_list *) calloc (sizeof (*newp), 1);
  if (newp != NULL)
    {
      newp->name = name;
      if (temp_name_list == NULL)
	temp_name_list = (struct temp_name_list *) &newp->q;
      else
	insque (newp, temp_name_list);
    }
}

/* Delete all temporary files.  */
static void
delete_temp_files (void)
{
  while (temp_name_list != NULL)
    {
      remove (temp_name_list->name);
      temp_name_list = (struct temp_name_list *) temp_name_list->q.q_forw;
    }
}

/* Create a temporary file.  */
static int
__attribute__ ((unused))
create_temp_file (const char *base, char **filename)
{
  char *fname;
  int fd;

  fname = (char *) malloc (strlen (test_dir) + 1 + strlen (base)
			   + sizeof ("XXXXXX"));
  if (fname == NULL)
    {
      puts ("out of memory");
      return -1;
    }
  strcpy (stpcpy (stpcpy (stpcpy (fname, test_dir), "/"), base), "XXXXXX");

  fd = mkstemp (fname);
  if (fd == -1)
    {
      printf ("cannot open temporary file '%s': %m\n", fname);
      free (fname);
      return -1;
    }

  add_temp_file (fname);
  if (filename != NULL)
    *filename = fname;

  return fd;
}

/* Timeout handler.  We kill the child and exit with an error.  */
static void
__attribute__ ((noreturn))
timeout_handler (int sig __attribute__ ((unused)))
{
  int killed;
  int status;

  /* Send signal.  */
  kill (pid, SIGKILL);

  /* Wait for it to terminate.  */
  int i;
  for (i = 0; i < 5; ++i)
    {
      killed = waitpid (pid, &status, WNOHANG|WUNTRACED);
      if (killed != 0)
	break;

      /* Delay, give the system time to process the kill.  If the
	 nanosleep() call return prematurely, all the better.  We
	 won't restart it since this probably means the child process
	 finally died.  */
      struct timespec ts = { .tv_sec = 0, .tv_nsec = 100000000 };
      nanosleep (&ts, NULL);
    }
  if (killed != 0 && killed != pid)
    {
      perror ("Failed to killed test process");
      exit (1);
    }

#ifdef CLEANUP_HANDLER
  CLEANUP_HANDLER;
#endif

  /* If we expected this signal: good!  */
#ifdef EXPECTED_SIGNAL
  if (EXPECTED_SIGNAL == SIGALRM)
    exit (0);
#endif

  if (killed == 0 || (WIFSIGNALED (status) && WTERMSIG (status) == SIGKILL))
    fputs ("Timed out: killed the child process\n", stderr);
  else if (WIFSTOPPED (status))
    fprintf (stderr, "Timed out: the child process was %s\n",
	     strsignal (WSTOPSIG (status)));
  else if (WIFSIGNALED (status))
    fprintf (stderr, "Timed out: the child process got signal %s\n",
	     strsignal (WTERMSIG (status)));
  else
    fprintf (stderr, "Timed out: killed the child process but it exited %d\n",
	     WEXITSTATUS (status));

  /* Exit with an error.  */
  exit (1);
}

/* We provide the entry point here.  */
int
main (int argc, char *argv[])
{
  int direct = 0;	/* Directly call the test function?  */
  int status;
  int opt;
  pid_t termpid;

#ifdef STDOUT_UNBUFFERED
  setbuf (stdout, NULL);
#endif

  while ((opt = getopt_long (argc, argv, "+", options, NULL)) != -1)
    switch (opt)
      {
      case '?':
	exit (1);
      case OPT_DIRECT:
	direct = 1;
	break;
      case OPT_TESTDIR:
	test_dir = optarg;
	break;
#ifdef CMDLINE_PROCESS
	CMDLINE_PROCESS
#endif
      }

  /* Set TMPDIR to specified test directory.  */
  if (test_dir != NULL)
    {
      setenv ("TMPDIR", test_dir, 1);

      if (chdir (test_dir) < 0)
	{
	  perror ("chdir");
	  exit (1);
	}
    }
  else
    {
      test_dir = getenv ("TMPDIR");
      if (test_dir == NULL || test_dir[0] == '\0')
	test_dir = "/tmp";
    }

  /* Make sure we see all message, even those on stdout.  */
  setvbuf (stdout, NULL, _IONBF, 0);

  /* make sure temporary files are deleted.  */
  atexit (delete_temp_files);

  /* Correct for the possible parameters.  */
  argv[optind - 1] = argv[0];
  argv += optind - 1;
  argc -= optind - 1;

  /* Call the initializing function, if one is available.  */
#ifdef PREPARE
  PREPARE (argc, argv);
#endif

  /* If we are not expected to fork run the function immediately.  */
  if (direct)
    return TEST_FUNCTION;

  /* Set up the test environment:
     - prevent core dumps
     - set up the timer
     - fork and execute the function.  */

  pid = fork ();
  if (pid == 0)
    {
      /* This is the child.  */
#ifdef RLIMIT_CORE
      /* Try to avoid dumping core.  */
      struct rlimit core_limit;
      core_limit.rlim_cur = 0;
      core_limit.rlim_max = 0;
      setrlimit (RLIMIT_CORE, &core_limit);
#endif

#ifdef RLIMIT_DATA
      /* Try to avoid eating all memory if a test leaks.  */
      struct rlimit data_limit;
      if (getrlimit (RLIMIT_DATA, &data_limit) == 0)
	{
	  if (TEST_DATA_LIMIT == RLIM_INFINITY)
	    data_limit.rlim_cur = data_limit.rlim_max;
	  else if (data_limit.rlim_cur > (rlim_t) TEST_DATA_LIMIT)
	    data_limit.rlim_cur = MIN ((rlim_t) TEST_DATA_LIMIT,
				       data_limit.rlim_max);
	  if (setrlimit (RLIMIT_DATA, &data_limit) < 0)
	    perror ("setrlimit: RLIMIT_DATA");
	}
      else
	perror ("getrlimit: RLIMIT_DATA");
#endif

      /* We put the test process in its own pgrp so that if it bogusly
	 generates any job control signals, they won't hit the whole build.  */
      setpgid (0, 0);

      /* Execute the test function and exit with the return value.   */
      exit (TEST_FUNCTION);
    }
  else if (pid < 0)
    {
      perror ("Cannot fork test program");
      exit (1);
    }

  /* Set timeout.  */
#ifndef TIMEOUT
  /* Default timeout is two seconds.  */
# define TIMEOUT 2
#endif
  signal (SIGALRM, timeout_handler);
  alarm (TIMEOUT);

  /* Wait for the regular termination.  */
  termpid = TEMP_FAILURE_RETRY (waitpid (pid, &status, 0));
  if (termpid == -1)
    {
      printf ("Waiting for test program failed: %m\n");
      exit (1);
    }
  if (termpid != pid)
    {
      printf ("Oops, wrong test program terminated: expected %ld, got %ld\n",
	      (long int) pid, (long int) termpid);
      exit (1);
    }

#ifndef EXPECTED_SIGNAL
  /* We don't expect any signal.  */
# define EXPECTED_SIGNAL 0
#endif
  if (WTERMSIG (status) != EXPECTED_SIGNAL)
    {
      if (EXPECTED_SIGNAL != 0)
	{
	  if (WTERMSIG (status) == 0)
	    fprintf (stderr,
		     "Expected signal '%s' from child, got none\n",
		     strsignal (EXPECTED_SIGNAL));
	  else
	    fprintf (stderr,
		     "Incorrect signal from child: got `%s', need `%s'\n",
		     strsignal (WTERMSIG (status)),
		     strsignal (EXPECTED_SIGNAL));
	}
      else
	fprintf (stderr, "Didn't expect signal from child: got `%s'\n",
		 strsignal (WTERMSIG (status)));
      exit (1);
    }

  /* Simply exit with the return value of the test.  */
#ifndef EXPECTED_STATUS
  return WEXITSTATUS (status);
#else
  if (WEXITSTATUS (status) != EXPECTED_STATUS)
    {
      fprintf (stderr, "Expected status %d, got %d\n",
	       EXPECTED_STATUS, WEXITSTATUS (status));
      exit (1);
    }

  return 0;
#endif
}

--wRRV7LY7NUeQGEoC--


From - Thu Nov 08 21:29:22 2018
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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] pthread attributes and stack positions (gcc
	related?)
Date: 28 Sep 2003 12:53:38 -0500
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Cc: PARISC list <parisc-linux@lists.parisc-linux.org>,
	John David Anglin <dave.anglin@nrc-cnrc.gc.ca>,
	Randolph Chung <tausq@debian.org>
To: "Carlos O'Donell" <carlos@baldric.uwo.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:19659

On Sun, 2003-09-28 at 12:42, Carlos O'Donell wrote:
> The variable is definately on the process stack. The thread's stack 
> address seems to be inside the libraries 'writable' space and the stack 
> size is wrong (or uninitialized). Perhaps I should just be looking for 
> arch-dependant init code that we might be missing.

This, I believe to be correct: there's only one real stack (i.e. the
thing on x86 that grows down from top of memory) and only one thread can
have it.  The rest of the thread stacks are mmapped at fixed sizes with
a guard area to prevent them growing too far.  mmapped memory comes out
of the same pool that shared library memory comes from, so you should
correctly see the mappings interleave (depending on the load and thread
start order).

James




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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: zalon/ncr53c720 (linux-2.6.0-test5-pa22) broken
 on C110
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To: Matthew Wilcox <willy@debian.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:19660

Matthew Wilcox wrote:

>The driver is rev 1.5 in -test5-pa6.  rev 1.6 is in -test5-pa18.
>After -test5-pa20, we don't have anyautotagged stuff, but let's start
>with -pa18.
>
>  
>
Sorry it already failled with following satck dump:
zalon_probe: Zalon vers field is 0x1, IRQ 34
ncr53c720-0: rev 0xf on bus 0 device 0 function 0 irq 34
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
ncr53c720-0: suspicious SCSI data while resetting the BUS.
ncr53c720-0: dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,atn,msg,c/d,i/o = 
0x3fdff00, expecting 0x100
ncr53c720-0: FATAL ERROR: CHECK SCSI BUS - CABLES, TERMINATION, DEVICE 
POWER etc.!
ncr53c720-0: detaching...

Stack Dump:
 17fb8758:  17fb8758 00000202 0000000e 00000000
 17fb8748:  10385f84 00000001 10385f84 00000020
 17fb8738:  17ff8b2c 000000d0 17ff8b2c 1013efec
 17fb8728:  00000001 17ff8b48 0000003c 17ff7800
 17fb8718:  10385f84 00000202 0000000e 17fb83c0
 17fb8708:  0000001a 00000194 00000000 00000040
 17fb86f8:  17ff8b2c 000000d0 17ff8b2c 10106524
 17fb86e8:  10090600 100906a0 10357000 17ff7800
 17fb86d8:  17ff8bac 10385f84 00000202 00000001
 17fb86c8:  103862c0 00002574 00002575 00000000
 17fb86b8:  100e2568 000000d0 100e2568 10214844
 17fb86a8:  00000001 100e2584 00000001 100e2568
 17fb8698:  10094ac0 17ff0088 00000000 1033a000
 17fb8688:  10468810 10397010 10370010 10391054
 17fb8678:  00000004 000012c8 10454a18 101421fc
 17fb8668:  00001329 10397010 10370010 103d11c0
 17fb8658:  00000000 0000004d 10472478 ffffffff
 17fb8648:  100e2568 00000080 00000001 f00000a4
 17fb8638:  f00000ac f00010f4 00000000 10141b60
 17fb8628:  0000004d 00000000 103d11c0 10370010
 17fb8618:  10453810 10385810 10453884 1037f5ec
 17fb8608:  100e2568 100e2568 100e25d4 10391054
 17fb85f8:  00000004 00001382 10454a18 1010b088
 17fb85e8:  0000139c 10397010 100e2568 100e2584
 17fb85d8:  00100100 00200200 17ee4034 10434810
 17fb85c8:  10397010 10370010 103d11c0 f00000a4
 17fb85b8:  f00000ac f00010f4 00000000 101422c8
 17fb85a8:  0000004d 00000000 17fb8488 00000002
 17fb8598:  10090600 17ee4034 00000194 00000000
 17fb8588:  4b5a0328 0000001f 100e25d4 103d11c0
 17fb8578:  00000000 0000004d 000000fd 10257458
 17fb8568:  1025ba9c 00000000 00000000 00000000
 17fb8558:  00000000 00000000 00000000 00000000
 17fb8548:  00000000 00000000 00000000 00000000
 17fb8538:  41000000 00000000 40800000 00000000
 17fb8528:  40000000 00000000 40000000 7fffffff
 17fb8518:  41800000 00000000 40200000 00000000
 17fb8508:  40200000 00000000 40300000 00000000
 17fb84f8:  41000000 00000000 40800000 7fffffff
 17fb84e8:  7fffffff 00000000 41000000 7fffffff
 17fb84d8:  7fffffff 00000800 00000400 00000200
 17fb84c8:  00000100 00000080 00000040 00000000
 17fb84b8:  00000000 00000010 00000010 00000000
 17fb84a8:  41800000 25b7ea20 45e69c6a 00000000
 17fb8498:  00000000 e0000000 43ebebeb ffffffff
 17fb8488:  7f7fffff 00000020 00000010 00000000
 17fb8478:  00000000 00000000 00000000 00000000
 17fb8468:  00000000 00000000 00000000 00000000
 17fb8458:  0000001f 00000000 0000001f 00000000
 17fb8448:  0000001f 00000000 000b0800 10142ce8
 17fb8438:  17fb83c0 0000000b 00000000 1036e010
 17fb8428:  00000000 17ffc360 000002c7 10082000
 17fb8418:  0000000f 0000001f 00000036 0000001f
 17fb8408:  f00000a4 f00000ac f00010f4 00000000
 17fb83f8:  000000fd 0000004d 00000000 103d11c0
 17fb83e8:  10370010 ffffffed 17ff0000 00000022
 17fb83d8:  10468810 1033a000 00000000 17ff0088
 17fb83c8:  1025baa0 1025b800 000eff0f 100cd800
 17fb83b8:  fffffffb 10353000 10370528 f3f8c800
 17fb83a8:  00000001 1033a000 10353000 00000022
 17fb8398:  17ff0088 00000001 1033a000 10468810
 17fb8388:  00000022 17ff0000 ffffffed 10391054
 17fb8378:  00000004 000011b5 10454a18 103e7e64
 17fb8368:  000011de 00000000 100864e0 10359e74

Kernel addresses on the stack:
 [<10124204>] copy_process+0x3d8/0x9f0
 [<10106220>] parisc_terminate+0x60/0xb8
 [<1013efec>] buffered_rmqueue+0xd8/0x164
 [<10106524>] handle_interruption+0x2ac/0x5bc
 [<10214844>] serial8250_console_write+0x1ac/0x37c
 [<101421fc>] do_drain+0x18/0x28
 [<10141b60>] slab_destroy+0x15c/0x214
 [<1010b088>] intr_check_sig+0x0/0xc
 [<101422c8>] __cache_shrink+0x70/0xc0
 [<10257458>] ncr_detach+0x0/0x374
 [<103d11c0>] start_kernel+0x4/0x214
 [<103e7e64>] zalon_probe+0x240/0x270
 [<1010ecf8>] parisc_driver_probe+0x2c/0x60
 [<10219dcc>] bus_match+0x48/0x80
 [<10219f28>] driver_attach+0x70/0xa4
 [<1021a1b0>] bus_add_driver+0x98/0xa8
 [<101ec1b4>] pci_populate_driver_dir+0x30/0x38
 [<1021a51c>] driver_register+0x48/0x54
 [<103e7c14>] sym2_init+0x18/0x28
 [<103d1438>] do_initcalls+0x58/0xdc
 [<10100400>] init+0x2c/0x144
 [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=26 regs=17fb83c0 (Addr=00000194)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011101111111100001111 Not tainted
r00-03  00000000 1025b800 1025baa0 17ff0088
r04-07  00000000 1033a000 10468810 00000022
r08-11  17ff0000 ffffffed 10370010 103d11c0
r12-15  00000000 0000004d 000000fd 00000000
r16-19  f00010f4 f00000ac f00000a4 0000001f
r20-23  00000036 0000001f 0000000f 10082000
r24-27  000002c7 17ffc360 00000000 1036e010
r28-31  00000000 0000000b 17fb83c0 10142ce8
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1025ba9c 10257458
 IIR: 4b5a0328    ISR: 00000000  IOR: 00000194
 CPU:        0   CR30: 17fb8000 CR31: 103c6000
 ORIG_R28: 00000000
 IAOQ[0]: ncr53c8xx_release+0xc/0x20
 IAOQ[1]: ncr_detach+0x0/0x374
 RP(r2): ncr53c8xx_release+0x10/0x20

Now what do you thing foward pa20 or backward pa14?

Thanks,
    Joel




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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 willy
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On Sun, Sep 28, 2003 at 12:24:26PM -0500, James Bottomley wrote:
> On Sun, 2003-09-28 at 11:56, Richard Hirst wrote:
> > Only because I didn't get it to work properly when I did the original
> > 720 support, iirc.  The chip does have INTFLY.  I _think_ INTFLY worked
> > a bit, but the driver tended to miss interrupts sometimes.  Could easily
> > have been a driver bug.  Was a long time ago now though, so I could be
> > misremembering.
> 
> Actually, the 720 is bust in silicon.  The 770 has a properly working

OK - explains why it didn't work then.

Cheers,
  Richard



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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 willy
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On Sun, Sep 28, 2003 at 12:24:26PM -0500, James Bottomley wrote:
> Actually, the 720 is bust in silicon.  The 770 has a properly working
> intfly, but the 720's doesnt work reliably.  Actually, the Q720 board
> this driver also drives is wired to have a special "intfly" from a board
> register to get around the problem.

Mmm, OK.  Did you want me to put the SIMULATED_INTFLY conditionals
back in?  It wasn't much code; I've just been focused on ripping out
all the 8xx support, and I completely forgot about the 770.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 willy
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On Sun, 2003-09-28 at 14:23, Matthew Wilcox wrote:
> On Sun, Sep 28, 2003 at 12:24:26PM -0500, James Bottomley wrote:
> > Actually, the 720 is bust in silicon.  The 770 has a properly working
> > intfly, but the 720's doesnt work reliably.  Actually, the Q720 board
> > this driver also drives is wired to have a special "intfly" from a board
> > register to get around the problem.
> 
> Mmm, OK.  Did you want me to put the SIMULATED_INTFLY conditionals
> back in?  It wasn't much code; I've just been focused on ripping out
> all the 8xx support, and I completely forgot about the 770.

Perhaps.  The way I'd envisaged going forwards was to put the Q720 code
in there...it does a memory move which causes the card to trigger and
interrupt which can be used as an INTFLY.

Unfortunately, I lost all my Q770 cards in a lab move, so I've no means
of testing them.

James




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Subject: Re: [parisc-linux] Re: zalon/ncr53c720 (linux-2.6.0-test5-pa22) broken
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Joel Soete wrote:

> Matthew Wilcox wrote:
>
>> The driver is rev 1.5 in -test5-pa6.  rev 1.6 is in -test5-pa18.
>> After -test5-pa20, we don't have anyautotagged stuff, but let's start
>> with -pa18.
>>
>>  
>>
> Sorry it already failled with following satck dump:
> zalon_probe: Zalon vers field is 0x1, IRQ 34
> ncr53c720-0: rev 0xf on bus 0 device 0 function 0 irq 34
> ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
> ncr53c720-0: suspicious SCSI data while resetting the BUS.
> ncr53c720-0: dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,atn,msg,c/d,i/o = 
> 0x3fdff00, expecting 0x100
> ncr53c720-0: FATAL ERROR: CHECK SCSI BUS - CABLES, TERMINATION, DEVICE 
> POWER etc.!
> ncr53c720-0: detaching...
>
> Stack Dump:
> 17fb8758:  17fb8758 00000202 0000000e 00000000
> 17fb8748:  10385f84 00000001 10385f84 00000020
> 17fb8738:  17ff8b2c 000000d0 17ff8b2c 1013efec
> 17fb8728:  00000001 17ff8b48 0000003c 17ff7800
> 17fb8718:  10385f84 00000202 0000000e 17fb83c0
> 17fb8708:  0000001a 00000194 00000000 00000040
> 17fb86f8:  17ff8b2c 000000d0 17ff8b2c 10106524
> 17fb86e8:  10090600 100906a0 10357000 17ff7800
> 17fb86d8:  17ff8bac 10385f84 00000202 00000001
> 17fb86c8:  103862c0 00002574 00002575 00000000
> 17fb86b8:  100e2568 000000d0 100e2568 10214844
> 17fb86a8:  00000001 100e2584 00000001 100e2568
> 17fb8698:  10094ac0 17ff0088 00000000 1033a000
> 17fb8688:  10468810 10397010 10370010 10391054
> 17fb8678:  00000004 000012c8 10454a18 101421fc
> 17fb8668:  00001329 10397010 10370010 103d11c0
> 17fb8658:  00000000 0000004d 10472478 ffffffff
> 17fb8648:  100e2568 00000080 00000001 f00000a4
> 17fb8638:  f00000ac f00010f4 00000000 10141b60
> 17fb8628:  0000004d 00000000 103d11c0 10370010
> 17fb8618:  10453810 10385810 10453884 1037f5ec
> 17fb8608:  100e2568 100e2568 100e25d4 10391054
> 17fb85f8:  00000004 00001382 10454a18 1010b088
> 17fb85e8:  0000139c 10397010 100e2568 100e2584
> 17fb85d8:  00100100 00200200 17ee4034 10434810
> 17fb85c8:  10397010 10370010 103d11c0 f00000a4
> 17fb85b8:  f00000ac f00010f4 00000000 101422c8
> 17fb85a8:  0000004d 00000000 17fb8488 00000002
> 17fb8598:  10090600 17ee4034 00000194 00000000
> 17fb8588:  4b5a0328 0000001f 100e25d4 103d11c0
> 17fb8578:  00000000 0000004d 000000fd 10257458
> 17fb8568:  1025ba9c 00000000 00000000 00000000
> 17fb8558:  00000000 00000000 00000000 00000000
> 17fb8548:  00000000 00000000 00000000 00000000
> 17fb8538:  41000000 00000000 40800000 00000000
> 17fb8528:  40000000 00000000 40000000 7fffffff
> 17fb8518:  41800000 00000000 40200000 00000000
> 17fb8508:  40200000 00000000 40300000 00000000
> 17fb84f8:  41000000 00000000 40800000 7fffffff
> 17fb84e8:  7fffffff 00000000 41000000 7fffffff
> 17fb84d8:  7fffffff 00000800 00000400 00000200
> 17fb84c8:  00000100 00000080 00000040 00000000
> 17fb84b8:  00000000 00000010 00000010 00000000
> 17fb84a8:  41800000 25b7ea20 45e69c6a 00000000
> 17fb8498:  00000000 e0000000 43ebebeb ffffffff
> 17fb8488:  7f7fffff 00000020 00000010 00000000
> 17fb8478:  00000000 00000000 00000000 00000000
> 17fb8468:  00000000 00000000 00000000 00000000
> 17fb8458:  0000001f 00000000 0000001f 00000000
> 17fb8448:  0000001f 00000000 000b0800 10142ce8
> 17fb8438:  17fb83c0 0000000b 00000000 1036e010
> 17fb8428:  00000000 17ffc360 000002c7 10082000
> 17fb8418:  0000000f 0000001f 00000036 0000001f
> 17fb8408:  f00000a4 f00000ac f00010f4 00000000
> 17fb83f8:  000000fd 0000004d 00000000 103d11c0
> 17fb83e8:  10370010 ffffffed 17ff0000 00000022
> 17fb83d8:  10468810 1033a000 00000000 17ff0088
> 17fb83c8:  1025baa0 1025b800 000eff0f 100cd800
> 17fb83b8:  fffffffb 10353000 10370528 f3f8c800
> 17fb83a8:  00000001 1033a000 10353000 00000022
> 17fb8398:  17ff0088 00000001 1033a000 10468810
> 17fb8388:  00000022 17ff0000 ffffffed 10391054
> 17fb8378:  00000004 000011b5 10454a18 103e7e64
> 17fb8368:  000011de 00000000 100864e0 10359e74
>
> Kernel addresses on the stack:
> [<10124204>] copy_process+0x3d8/0x9f0
> [<10106220>] parisc_terminate+0x60/0xb8
> [<1013efec>] buffered_rmqueue+0xd8/0x164
> [<10106524>] handle_interruption+0x2ac/0x5bc
> [<10214844>] serial8250_console_write+0x1ac/0x37c
> [<101421fc>] do_drain+0x18/0x28
> [<10141b60>] slab_destroy+0x15c/0x214
> [<1010b088>] intr_check_sig+0x0/0xc
> [<101422c8>] __cache_shrink+0x70/0xc0
> [<10257458>] ncr_detach+0x0/0x374
> [<103d11c0>] start_kernel+0x4/0x214
> [<103e7e64>] zalon_probe+0x240/0x270
> [<1010ecf8>] parisc_driver_probe+0x2c/0x60
> [<10219dcc>] bus_match+0x48/0x80
> [<10219f28>] driver_attach+0x70/0xa4
> [<1021a1b0>] bus_add_driver+0x98/0xa8
> [<101ec1b4>] pci_populate_driver_dir+0x30/0x38
> [<1021a51c>] driver_register+0x48/0x54
> [<103e7c14>] sym2_init+0x18/0x28
> [<103d1438>] do_initcalls+0x58/0xdc
> [<10100400>] init+0x2c/0x144
> [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24
>
>
> Kernel Fault: Code=26 regs=17fb83c0 (Addr=00000194)
>
>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000011101111111100001111 Not tainted
> r00-03  00000000 1025b800 1025baa0 17ff0088
> r04-07  00000000 1033a000 10468810 00000022
> r08-11  17ff0000 ffffffed 10370010 103d11c0
> r12-15  00000000 0000004d 000000fd 00000000
> r16-19  f00010f4 f00000ac f00000a4 0000001f
> r20-23  00000036 0000001f 0000000f 10082000
> r24-27  000002c7 17ffc360 00000000 1036e010
> r28-31  00000000 0000000b 17fb83c0 10142ce8
> sr0-3   00000000 00000000 00000000 00000000
> sr4-7   00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 1025ba9c 10257458
> IIR: 4b5a0328    ISR: 00000000  IOR: 00000194
> CPU:        0   CR30: 17fb8000 CR31: 103c6000
> ORIG_R28: 00000000
> IAOQ[0]: ncr53c8xx_release+0xc/0x20
> IAOQ[1]: ncr_detach+0x0/0x374
> RP(r2): ncr53c8xx_release+0x10/0x20
>
> Now what do you thing foward pa20 or backward pa14?
>
Well:
hpalin login: root
Password:
Last login: Sun Sep 28 21:48:39 2003 on ttyS0
Linux hpalin 2.6.0-test5-pa14 #1 Sun Sep 28 22:10:24 CEST 2003 parisc 
GNU/Linux

So break is in patch...-pa14-pa18 (if I am lucky I could check it next 
week :) )

Joel



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վڴǰŮ 
۵ӰͲ˻Ӱֻ 
ɣип֪˺֪ʵ 
Ȼݣ۾ٲѡ 
ͣĸ壿ɳ̲ 

վڴǰŮ 
ֻּҸǧòҪǰս 
ҰսŮӦԷ 
лʦϣֻʮ¿ͥС 
˭ĵȻ˭ǻ 

վڴǰŮ 
근ʮϲʫķơ 
ĸмҲǧޣҲĮȻ 
˵ӳиҵΪТӪ軹һ롣 
˭ҿֵĿɽ˭ǧĵȴ 

վڴǰŮ 
òֽ߲Ӱ¿˳ 
ۣƣᵱٵ 
һ裬飬Ȼ 
ԭ˳ãǧԵݣ 

վڴǰŮ 
03828ڹ 
Email:cqnvhai@163.com 
http://www.blogcn.com/blog/?u=cqnvhai


һøס 
װ걻ĸȥˣֻһ游һͬĸĲĸǶӵضĻˡ׺ܰĸףĸҲܰסÿһνĸʱܸоǷǷݾҲ8꣬ĸĸ׳ʧڳͥͻȻʣĸ鰮ʹʧ˸׳صĴͬʱҲǻڶԹ游˼״һصйɳ 
ڣͯķĸҵļֻһģļӰΨһӡǿĸ׵ƬܻĸվҴǰ΢ЦͯʱʹҪҪ裬ҾܾˡǸױȫϣΨһŮϣֱҲ⸸׺ڳɳʮ֮Բ½飬ΪĸľͿ̹ĵĸԡʮΪĸعʮ꣬Ҳһ˱һˡһˣҲһŵˡںöĵ游İĲҲ˾ܵİҴϲȥ游ңʮֻȥĴΣζǸȥġ 
ʹǲһֵŮ΢ЦŸңһ㶼ֻ֣һƸеšûܹöΪʲôʢûܹ׺Ϊʲô֩ϾҲûܹСʼռʥ˵ĴڡЩŵ㲻Ҫ׵ĶְΪŮԺ 
ǵģһȺ˲һŮڸ׵ĳһῴŴĳ24ųеҹſֽһһǶȿʣڱﾲҵԼĿֻ顣Ÿ׵˾ȥо˻æµˣʸǲԺҲҪϰ๤ҵļ˵ϲԴ͸ҵʹ㲻ǲҪģְֻ׼㹻ǮֻҪϲ£ĿЦݾǰְ룬ٴһ㣬ְֻҪеռǳ飬ԸԸ⣬Ҵ 
лʳǣлҴûΪǮл׸һֵĴ԰ҳ˳ҡǽһжѾڡһŮһŮһ˸׵İԼͻᱻŮѲУѰܣٻ׵Լռǣ˼䴴˸п˭ܹףǸеϣڣڸõĻر;Тެܺҵһ룬Լֵȥ 
վڴǰŮ򵥵һŮôϡŹ֣һŮܻԣȻȹᴩ´磬Ȼʲ״ףֻΪһиѳϰߣ 
ĸģĲѣҷɳ̲ΪĴ磬ѧİšվڴǰŮ˭ԸΪһŮǧ谮˭ԸΪһŮȥ׷һʣ˭ԸΪȢһŮȷʵ޺ãã˺ʵĴ𰸣 
ۣݣʳѣѵЩٻ 

վڴǰŮ 
0391峿ãڹ 
 
 
ĵڴ˺ѰҴ𰸡컹ãƲɢݵ˵ͱ䣬̨˵һҹʲôݣٲѣֻҲˣһһʲôСС֪ǮΪСΪǮǿòĳƱŸ׵ȥ׸ĿҲûǮ³ǵģ̫ˣΪҲϲİˣԸҲİ˰˾˴ؼңΪ̫ƧԴŮеѧҲûʲô֪ĵͬѡһĬĬԼŷ仨ѩ£Сѿд¶ĵ̾ ҲϲһкȻʥ˵ĴڣһA4ֽһԲȦ󵽿԰˵Դװȥȴ֪ô˶ʮ̸ 
ǵġһŮһƣ磬Խдṩõϣϲ£ѵҲддƲϲԼ⣬ֻΪ𼦱ɱʱʹᣬƿڵϵˣƻеǮѵеһжǴı֣ΪƵ۾￴綼ǵ¥ˡҸ˲һԸΪҲ硢ܹڳ˵˼ά͹۵⡣ΪЩΪܹԼԸȥȥϲԴ͸󱨴𡣾һƣ˭ܸӦô 
ʮ£ͥеӣƻԲķʽѸеĲƲһ޿ҪˡͬҲܼҲҪΪƵĻᣬҲϲԴ͸Ƶƾ٣ر˼άһӽȥЩˣ֤ƴڵļֵ 
ףǣлԸƵˣʱƻرķʽƵصЩĵˡЩᳰЦЩܹʥ˴ڵˣ 
ǵģվڴǰŮȷʵڣȷʵʵ֮ҲͬΪǶûվڴ⣡ǵģ٣ҲһѰʵ 

վڴǰŮ 
Email:cqnvhai@163.com 
0393賿 ڹ 


ǵģƵȷһֵŮӡ
˵3ʱҾͺϲɫƬǸȴǰѻƬǸ׾ͰѻƬתҿһҪ׾ͻҵ۾ëʹȥҽҽĽǣӰͼƬ󣬳ΪӡһһʱǵһĹߣ۽Ĥ൱ĵƬγһ񡣵ǣ񴫵ԵӾ࣬ۺϷ㱻ˡ3µ׶ƤʹδȫȱƵۺϷǿͼǵģֻаѻƬܸܵλ񡣲ʱ̣ܶŴƤʹƣȻȻʧˡ
ʱȴԶֱƿ磬ǵŵġŵķӡŵ·ŵˡհһƣɻŬİյһеһƿڲֱܷͬңƹ·ϳ˶һΣյľٶܶڳ˿Ȼ飬ƻвͬĿҲƵرҲƶƸе֪ԼʺϹ˳ǲʺϹġ
һƣ˭ܸʲô˭ܸҸôһƣ׸úȥδӣʧȥ׵ӣ˭ܹ˭Ը˭Ըǻ˭Ը谮һŮһֵŮȷʵĴڣ
ˣȷʵˣþ̲Ǹ壿ǹޣ
ʧʱ򡢵ĵʱ򡢵پʱͬĵطҲϣиδδ֪δǵվڴǰŮڿѰҴ𰸣

վڴǰŮ
0397ҹڹ


г˫ĸֻΪǶڣ֪ȡеǲܵģֻҪһ;㹻Ŀĺڣһôܸôǿϣܹõ˵ͬرԼϲԼ˵ͬ,ԲŻа𼧡ϽŮǧѰǧŴ棡ͨʲôķʽҵҵԼֵһֻǵȴԼĻԼһżȻˣȻ˼龰һȴʡ֪ԼĳͶ̰壡ֻһܹԼͬԼһԸΪһ˷жԹ޻ڣװŵֻǳ͸ж
ǵƺгգΪն˥ϵһ죬ҲֻƤŵƵѪ⣬Ωвϵֻ˼ĸԲֵͺĵط
ưԼֵռǹϣյڶʼBBSԣǻɺȻҲһЩ˵ף͹ġڴĶƹµ˱ʾף͸лǹĻϣܹЩЩĹƵѣҲܹõһЩæ֤ԼļֵΪƵ˼룬Ϊûռ 
ٴƲƭӣҲԵĲԣȷʵͬһ磡֮Ը׵ʺȷʵΪҪֻΪƵĻᣬҲϲԴ͸Ƶƾ٣ϣ֮һЩݺ⡢һЩϺͰõ㣡ĿͷԣΪҲΪ˴˼ʣһ˵Ļһì֮ܵﱾһìܵļϣ߼߼,ȥϸɸɾɳµľֵǧȴˡżʶ˼룿ܹܵڶĿ
ڵƵȷҪаƵEmail´绰ͻʺţʱƻرķʽƵص!
һͨʺţ9555 5020 0150 9251 ׵Ŀ 

վڴǰŮ
03924賿ڹ
Email:cqnvhai@163.com
http://www.blogcn.com/blog/?u=cqnvhai  
 
 


From - Thu Nov 08 21:29:23 2018
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Subject: Re: [parisc-linux] Re: zalon/ncr53c720 (linux-2.6.0-test5-pa22) broken on C110
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Cc: Matthew Wilcox <willy@debian.org>,
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To: Joel Soete <soete.joel@tiscali.be>
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On Sun, Sep 28, 2003 at 08:32:49PM +0000, Joel Soete wrote:
> Joel Soete wrote:
> 
> >Sorry it already failled with following satck dump:

OK; we don't need the stack dump since that's already fixed in the top
of tree.

> >zalon_probe: Zalon vers field is 0x1, IRQ 34
> >ncr53c720-0: rev 0xf on bus 0 device 0 function 0 irq 34
> >ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
> >ncr53c720-0: suspicious SCSI data while resetting the BUS.
> >ncr53c720-0: dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,atn,msg,c/d,i/o = 
> >0x3fdff00, expecting 0x100
> >ncr53c720-0: FATAL ERROR: CHECK SCSI BUS - CABLES, TERMINATION, DEVICE 
> >POWER etc.!
> >ncr53c720-0: detaching...
> >
> >Now what do you thing foward pa20 or backward pa14?
> >
> Well:
> hpalin login: root
> Password:
> Last login: Sun Sep 28 21:48:39 2003 on ttyS0
> Linux hpalin 2.6.0-test5-pa14 #1 Sun Sep 28 22:10:24 CEST 2003 parisc 
> GNU/Linux
> 
> So break is in patch...-pa14-pa18 (if I am lucky I could check it next 
> week :) )

OK.  Can you try applying the following patch to -pa18?  Note that
applying this patch to the top of the tree will not work (you'd need an
additional patch for that).

Index: sym53c8xx_defs.h
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/sym53c8xx_defs.h,v
retrieving revision 1.4
retrieving revision 1.3
diff -u -p -r1.4 -r1.3
--- sym53c8xx_defs.h	24 Sep 2003 02:43:42 -0000	1.4
+++ sym53c8xx_defs.h	11 Sep 2003 18:50:08 -0000	1.3
@@ -497,10 +554,20 @@
 
 #else
 
+#ifdef CONFIG_SCSI_NCR53C8XX_NO_WORD_TRANSFERS
+/* Only 8 or 32 bit transfers allowed */
+#define INW_OFF(o)		(readb((char *)np->reg + ncr_offw(o)) << 8 | readb((char *)np->reg + ncr_offw(o) + 1))
+#else
 #define INW_OFF(o)		readw_raw((char *)np->reg + ncr_offw(o))
+#endif
 #define INL_OFF(o)		readl_raw((char *)np->reg + (o))
 
+#ifdef CONFIG_SCSI_NCR53C8XX_NO_WORD_TRANSFERS
+/* Only 8 or 32 bit transfers allowed */
+#define OUTW_OFF(o, val)	do { writeb((char)((val) >> 8), (char *)np->reg + ncr_offw(o)); writeb((char)(val), (char *)np->reg + ncr_offw(o) + 1); } while (0)
+#else
 #define OUTW_OFF(o, val)	writew_raw((val), (char *)np->reg + ncr_offw(o))
+#endif
 #define OUTL_OFF(o, val)	writel_raw((val), (char *)np->reg + (o))
 
 #endif

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


From - Thu Nov 08 21:29:23 2018
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From: georgeudah@latinmail.com
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Subject: [parisc-linux] BUSINESS PARTNER
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Dear Sir,

I am George Udah, Director of logistics for the government of Liberia
under former President Charles Taylor,I was in charge of the proceeds
from the diamond mines scattered around the countryside, but since
the current president has accepted to go into exile I decided to leave
the country immediately before it is too late.

I have in my possession the sum of fifteen million United States Dollars
(USD15M), Which I am Willing to invest under your care probably in your
company or another you may recommend. I am currently in hiding in Ghana
since my recent escape from Liberia.

I will unfold the procedure for the realization if you indicate your
interest to collaborate and you will get 20% of the total sum as commission.
Should this proposal not interest you, please disregard it without
prejudice However, if you are interested in this proposal, please contact me using
the above
email.

Please do treat this as a confidential issue as any leakage to the present
goverment will be dangerous to me and my family . please treat this with utmost
urgency that it requires.

Best regards

George Udah



From - Thu Nov 08 21:29:23 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:19668

Dear Sir,

I am George Udah, Director of logistics for the government of Liberia
under former President Charles Taylor,I was in charge of the proceeds
from the diamond mines scattered around the countryside, but since
the current president has accepted to go into exile I decided to leave
the country immediately before it is too late.

I have in my possession the sum of fifteen million United States Dollars
(USD15M), Which I am Willing to invest under your care probably in your
company or another you may recommend. I am currently in hiding in Ghana
since my recent escape from Liberia.

I will unfold the procedure for the realization if you indicate your
interest to collaborate and you will get 20% of the total sum as commission.
Should this proposal not interest you, please disregard it without
prejudice However, if you are interested in this proposal, please contact me using
the above
email.

Please do treat this as a confidential issue as any leakage to the present
goverment will be dangerous to me and my family . please treat this with utmost
urgency that it requires.

Best regards

George Udah



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Hi all,

Congratulation it compiles and boot well on my b180 :)

Thanks,
    Joel



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Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
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On Mon, Sep 29, 2003 at 02:53:16PM +0200, Roman Zippel wrote:
> Hi,
> 
> On Mon, 29 Sep 2003, Geert Uytterhoeven wrote:
> 
> > > Are there any Amiga cards that are 720 based?
> > 
> > I don't know for sure. Probably not (cfr. above).
> 
> The ppc boards have a 770. In the APUS tree we currently have a modified 
> ncr53c8xx driver, that sort of seems to work. The biggest problem seems to 
> be the incoherent memory interface.

... Ah ;-)  So where do I find the APUS tree?  From digging around on
the web (man, there's a lot of broken links in the APUS faq ...), it
seems to be its own sourceforge project that hasn't switched to working
on 2.6 yet, is this correct?

Now that ncr53c8xx is non-PCI only, it should cause the absolute minimum
of wailing & gnashing of teeth to convert it to use the non-coherent
dma device API.  It would benefit PA-RISC too as we have two models
(735 and 755) that have NCR720 chips and a non-coherent architecture.
Right now, they use the 53c700 driver, but it'd be better to use the
ncr53c8xx driver, of course.

Are any APUS people interested in working on this?  

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] Re: NCR53c720
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On Mon, 29 Sep 2003, Matthew Wilcox wrote:
> On Mon, Sep 29, 2003 at 02:53:16PM +0200, Roman Zippel wrote:
> > The ppc boards have a 770. In the APUS tree we currently have a modified 
> > ncr53c8xx driver, that sort of seems to work. The biggest problem seems to 
> > be the incoherent memory interface.
> 
> ... Ah ;-)  So where do I find the APUS tree?  From digging around on
> the web (man, there's a lot of broken links in the APUS faq ...), it
> seems to be its own sourceforge project that hasn't switched to working
> on 2.6 yet, is this correct?

The APUS tree is indeed at SourceForge. Most recent version (not counting
Roman's hard disk :-) is 2.4.22.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds



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On Sun, Sep 28, 2003 at 12:53:38PM -0500, James Bottomley wrote:
> On Sun, 2003-09-28 at 12:42, Carlos O'Donell wrote:
> > The variable is definately on the process stack. The thread's stack 
> > address seems to be inside the libraries 'writable' space and the stack 
> > size is wrong (or uninitialized). Perhaps I should just be looking for 
> > arch-dependant init code that we might be missing.
> 
> This, I believe to be correct: there's only one real stack (i.e. the
> thing on x86 that grows down from top of memory) and only one thread can
> have it.  The rest of the thread stacks are mmapped at fixed sizes with
> a guard area to prevent them growing too far.  mmapped memory comes out
> of the same pool that shared library memory comes from, so you should
> correctly see the mappings interleave (depending on the load and thread
> start order).

I agree, it seems though that after "fork" the values returned by 
"pthread_getattr_np (pthread_self (), &a);" are bogus. While if you call
pthread_create(...) and then the previous line from within the newly
created thread the values are initialized properly. A mistake might
exist with symbol versioning by which we are not calling libpthread's
overloaded thread manager "fork()" and continuing on with the normal syscall.

I think this seems to be a question of expected behaviour. I'll pass
this onto the libc-alpha list.

c.



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Hi,

On Mon, 29 Sep 2003, Matthew Wilcox wrote:

> ... Ah ;-)  So where do I find the APUS tree?  From digging around on
> the web (man, there's a lot of broken links in the APUS faq ...), it

It's also quite old... :)

> seems to be its own sourceforge project that hasn't switched to working
> on 2.6 yet, is this correct?

Yes. My 2.6 tree currently dies at the first exec.

> Now that ncr53c8xx is non-PCI only, it should cause the absolute minimum
> of wailing & gnashing of teeth to convert it to use the non-coherent
> dma device API.

Um, which one is the current right dma device API?

bye, Roman



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On Mon, Sep 29, 2003 at 06:24:14PM +0200, Roman Zippel wrote:
> > Now that ncr53c8xx is non-PCI only, it should cause the absolute minimum
> > of wailing & gnashing of teeth to convert it to use the non-coherent
> > dma device API.
> 
> Um, which one is the current right dma device API?

The one in Documentation/DMA-API.txt.  It looks like PowerPC hasn't got
an implementation of this yet -- is APUS the only non-coherent PowerPC
subport?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Mon, Sep 29, 2003 at 11:10:38AM -0400, Carlos O'Donell wrote:
> I agree, it seems though that after "fork" the values returned by 
> "pthread_getattr_np (pthread_self (), &a);" are bogus. While if you call
> pthread_create(...) and then the previous line from within the newly
> created thread the values are initialized properly. A mistake might
> exist with symbol versioning by which we are not calling libpthread's
> overloaded thread manager "fork()" and continuing on with the normal syscall.

Looking closer there is a __libc_maybe_call2 that happens during a fork
that is called and libpthread is linked. The maybe call tries to see if
pthread_fork is available, if it doesn't see a valid symbol it just
calls ARCH_FORK(). This looks like a suspect. So do a number of the
#ifdef's in pthread.c

c.


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On Mon, Sep 29, 2003 at 05:27:49PM +0100, Matthew Wilcox wrote:
> > Um, which one is the current right dma device API?
> 
> The one in Documentation/DMA-API.txt.

Matthew, which version of the source tree?
2.4.22 and 2.6.x versions of this file are not identical.

grundler@gsyprf3:/usr/src$ diff linux-2.?/Documentation/DMA-mapping.txt | wc -l
   117
grundler@gsyprf3:/usr/src$ wc -l linux-2.?/Documentation/DMA-mapping.txt
    798 linux-2.4/Documentation/DMA-mapping.txt
    828 linux-2.5/Documentation/DMA-mapping.txt
   1626 total

thanks,
grant


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On Mon, 2003-09-29 at 15:55, Grant Grundler wrote:
> On Mon, Sep 29, 2003 at 05:27:49PM +0100, Matthew Wilcox wrote:
> > > Um, which one is the current right dma device API?
> > 
> > The one in Documentation/DMA-API.txt.
> 
> Matthew, which version of the source tree?
> 2.4.22 and 2.6.x versions of this file are not identical.
> 
> grundler@gsyprf3:/usr/src$ diff linux-2.?/Documentation/DMA-mapping.txt | wc -l
>    117
> grundler@gsyprf3:/usr/src$ wc -l linux-2.?/Documentation/DMA-mapping.txt
>     798 linux-2.4/Documentation/DMA-mapping.txt
>     828 linux-2.5/Documentation/DMA-mapping.txt
>    1626 total

DMA-mapping.txt is only the pci_ DMA API.  The ncr53c8xx doesn't use
that any more.  It only uses the generic DMA API, which is documented in
DMA-API.txt like willy said, and is only in 2.6 (not 2.4).

James




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From: Rene Brothuhn <rene.br@web.de>
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On 2003.09.29 15:33 Matthew Wilcox wrote:
> ... Ah ;-)  So where do I find the APUS tree?  From digging around on
> the web (man, there's a lot of broken links in the APUS faq ...), it
> seems to be its own sourceforge project that hasn't switched to working
> on 2.6 yet, is this correct?
> 
> Now that ncr53c8xx is non-PCI only, it should cause the absolute minimum
> of wailing & gnashing of teeth to convert it to use the non-coherent
> dma device API.  It would benefit PA-RISC too as we have two models
> (735 and 755) that have NCR720 chips and a non-coherent architecture.
> Right now, they use the 53c700 driver, but it'd be better to use the
> ncr53c8xx driver, of course.
> 
> Are any APUS people interested in working on this?

Hello!

I'm the one who getting the 53c770 driver working on APUS. The driver is 
based on the code from the ncr53c8xx driver which I found on a 2.4.16 
kernel (maybe it was an other kernel version, I'm not really sure 
anymore). In newer kernels the ncr53c8xx drivers are replaced by sym53c8xx 
which uses a different and more complicated architecture.
In my opinion, the best is to create a seperate 53c720/770 driver based on 
the 53c770 from APUS or ncr53c8xx. I guess the 53c770 from APUS should 
work (with some changes) on a 720 (or similar), because the 770 was 
designed to replace the 720. But I don't know anything about 735 and 755.
But the APUS driver is a really big "patchwork", has some problems and 
needs a clean-up. And I haven't worked on the driver since a year due to 
lack of time, sorry.

I still have lack of time, but if there are any questions, I will help. It 
will be nice to have a native 720/770 driver... And maybe, if someone 
tries to port this driver to a PA, I have to go for it...


Ciao, Ren


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To: Rene Brothuhn <rene.br@web.de>
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On Mon, Sep 29, 2003 at 11:25:01PM +0200, Rene Brothuhn wrote:
> I'm the one who getting the 53c770 driver working on APUS. The driver is 

Good to hear from you.  Let me just clear up a couple of
misunderstandings...

> based on the code from the ncr53c8xx driver which I found on a 2.4.16 
> kernel (maybe it was an other kernel version, I'm not really sure 
> anymore). In newer kernels the ncr53c8xx drivers are replaced by sym53c8xx 
> which uses a different and more complicated architecture.

The sym53c8xx driver doesn't support all the chips that ncr53c8xx
supported (mostly earlier chips like 810).  Now there's the sym53c8xx_2
driver that supports all the 8xx chips.  In 2.6, we've now eliminated all
PCI stuff from ncr53c8xx (and it should probably be renamed to ncr53c7xx,
but I actually have a slightly different plan for renaming it that needs
other work to happen first).

> In my opinion, the best is to create a seperate 53c720/770 driver based on 
> the 53c770 from APUS or ncr53c8xx. I guess the 53c770 from APUS should 
> work (with some changes) on a 720 (or similar), because the 770 was 
> designed to replace the 720. But I don't know anything about 735 and 755.

The HP 735/755 workstations have an NCR720 chip as part of their `core
IO'.  It appears as a parisc_device.  They have a PCX-T CPU which has
no way to allocate coherent memory.

> But the APUS driver is a really big "patchwork", has some problems and 
> needs a clean-up. And I haven't worked on the driver since a year due to 
> lack of time, sorry.
> 
> I still have lack of time, but if there are any questions, I will help. It 
> will be nice to have a native 720/770 driver... And maybe, if someone 
> tries to port this driver to a PA, I have to go for it...

OK.  I think the right path forward here is:

 - I port the ncr53c8xx to use the non-coherent DMA interfaces.
 - Someone converts the zorro device to embed the struct device.
 - Someone implements the non-coherent DMA interfaces for PowerPC.
 - Someone adds a zorro720 driver (see NCR_Q720 and zalon for inspiration)
   that's simply a glue layer from zorro to ncr720.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Naresh <knaresh@india.hp.com>
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Subject: [parisc-linux] MAX_ADDRESS.
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Hi,
This question is relevant to the 2.4 kernel. Is MAX_ADDRESS really the
highest virtual address mapped by the kernel? I can see this comment in
'paging_init()' in the section for DISCONTIGMEM. However,
pagetable_init() doesnt make a check before it calls 'map_pages( )' for
all the ranges of memory. So we may DISCONTIGMEM turned off but  it may
so happen that we have a 'pmem_ranges[]' entry that is greater than
MAX_ADDRESS which may find its way into the kernel page tables.
Regards,
Naresh.




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On Tue, 30 Sep 2003, Matthew Wilcox wrote:
>  - Someone converts the zorro device to embed the struct device.

I'm working on this. I have code that works on UML using a fake list of Zorro
devices, but so far I haven't modified any Zorro driver code.

BTW, A4000T SCSI is builtin, not Zorro, so we need a platform device for that.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds



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On Tue, Sep 30, 2003 at 11:03:28AM +0530, Naresh wrote:
> This question is relevant to the 2.4 kernel. Is MAX_ADDRESS really the
> highest virtual address mapped by the kernel? I can see this comment in
> 'paging_init()' in the section for DISCONTIGMEM. However,
> pagetable_init() doesnt make a check before it calls 'map_pages( )' for
> all the ranges of memory. So we may DISCONTIGMEM turned off but  it may
> so happen that we have a 'pmem_ranges[]' entry that is greater than
> MAX_ADDRESS which may find its way into the kernel page tables.

Ignore the DISCONTIGMEM code.  It's completely broken (and we offer no
way to turn CONFIG_DISCONTIGMEM on).

I'm not sure what half of this code is for; you'd need to ask John Marvin
who wrote it.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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MAX_ADDRESS has nothing to do with DISCONTIGMEM. Its definition is generic(
pgtable.h), although it is not used anywhere. I just happened to see the comment in
the DISCONTIGMEM code. Even if DISCONTIGMEM is turned off, there is no check for
MAX_ADDRESS before the call to 'map_pages()' in 'pagetable_init( )', which is why I
would like to know if MAX_ADDRESS can be ignored.

Regards,
Naresh.

Matthew Wilcox wrote:

> On Tue, Sep 30, 2003 at 11:03:28AM +0530, Naresh wrote:
> > This question is relevant to the 2.4 kernel. Is MAX_ADDRESS really the
> > highest virtual address mapped by the kernel? I can see this comment in
> > 'paging_init()' in the section for DISCONTIGMEM. However,
> > pagetable_init() doesnt make a check before it calls 'map_pages( )' for
> > all the ranges of memory. So we may DISCONTIGMEM turned off but  it may
> > so happen that we have a 'pmem_ranges[]' entry that is greater than
> > MAX_ADDRESS which may find its way into the kernel page tables.
>
> Ignore the DISCONTIGMEM code.  It's completely broken (and we offer no
> way to turn CONFIG_DISCONTIGMEM on).
>
> I'm not sure what half of this code is for; you'd need to ask John Marvin
> who wrote it.
>
> --
> "It's not Hollywood.  War is real, war is primarily not about defeat or
> victory, it is about death.  I've seen thousands and thousands of dead bodies.
> Do you think I want to have an academic debate on this subject?" -- Robert Fisk
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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On Tue, 2003-09-30 at 07:24, Naresh wrote:
> MAX_ADDRESS has nothing to do with DISCONTIGMEM. Its definition is generic(
> pgtable.h), although it is not used anywhere. I just happened to see the comment in
> the DISCONTIGMEM code. Even if DISCONTIGMEM is turned off, there is no check for
> MAX_ADDRESS before the call to 'map_pages()' in 'pagetable_init( )', which is why I
> would like to know if MAX_ADDRESS can be ignored.

No.  It does represent the highest virtual address possible.

Linux has 3 levels of page tables, so on a 64 bit kernel (8 bytes per
pte and 8 bytes per pte page pointer etc), we can address a maximum of
512GB with 4k pages.

James




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On Tue, 2003-09-30 at 03:21, Geert Uytterhoeven wrote:
> BTW, A4000T SCSI is builtin, not Zorro, so we need a platform device for that.

That depends on how you want it to work.  On parisc, the Lasi (SCSI and
other) devices are technically "platform" in that they're all ASIC'd
together and soldered on to the main board.  However, it was easier to
create a parisc_bus type and lump them all under it than to use a
platform device....however, we did this in the very early days of the
generic device, a platform device might be more appropriate now.

James




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On Tue, Sep 30, 2003 at 08:47:11AM -0500, James Bottomley wrote:
> On Tue, 2003-09-30 at 03:21, Geert Uytterhoeven wrote:
> > BTW, A4000T SCSI is builtin, not Zorro, so we need a platform device for that.
> 
> That depends on how you want it to work.  On parisc, the Lasi (SCSI and
> other) devices are technically "platform" in that they're all ASIC'd
> together and soldered on to the main board.  However, it was easier to
> create a parisc_bus type and lump them all under it than to use a
> platform device....however, we did this in the very early days of the
> generic device, a platform device might be more appropriate now.

It makes a lot of sense to treat all the devices that firmware tells us
about as parisc_devices since we treat them all the same way.  If we
were stepping over ourselves saying "well, yes, this is a pluggable
device and therefore we have to access it like that, but this one's
on the motherboard and therefore we treat it like that", I'd agree.
But all these devices are in the same namespace, firmware tells us
about all of them in the same way, so I think we should continue with
the parisc_device.

>From a historical perspective, we've had parisc_devices in
one form or another since the very start of the project.
They were called hp_devices until about August 2001.  See
http://ftp.parisc-linux.org/patches/parisc_device-2.diff for the
conversion.

I don't know much about Amiga/Zorro.  Maybe it'd make sense for Amiga
platform devices to be faked as zorro_devices, but I doubt it.  In
any case, the 4000T SCSI is a 53c710, not a 720.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On 2003.09.30 04:21 Matthew Wilcox wrote:
> The sym53c8xx driver doesn't support all the chips that ncr53c8xx
> supported (mostly earlier chips like 810).  Now there's the sym53c8xx_2
> driver that supports all the 8xx chips.  In 2.6, we've now eliminated all
> PCI stuff from ncr53c8xx (and it should probably be renamed to ncr53c7xx,
> but I actually have a slightly different plan for renaming it that needs
> other work to happen first).

Fine, the pci-stuff is removed from the driver. This makes it easier to 
adapt the driver to non-pci machines.

I have looked in the ncr53c8xx driver from 2.6 and there is mentioned that 
"interrupt on the fly" is not working correctly for 720. Also 
sym53c8xx_defs.h is included and so the registerset from a 810 is used, 
but the 720/770 registers are slightly different.
Is the NCR_Q720 or zalon driver working?

> 
> OK.  I think the right path forward here is:
> 
>  - I port the ncr53c8xx to use the non-coherent DMA interfaces.
>  - Someone converts the zorro device to embed the struct device.
>  - Someone implements the non-coherent DMA interfaces for PowerPC.

So, maybe I can do that at least for APUS, because some of the needed 
interfaces I already created as a "dirty-hack" inside the 53c770 driver. 
But the mean problem is, that there is no working 2.6 kernel for APUS... 
The other problem is time, but maybe I find some hours on weekend...

>  - Someone adds a zorro720 driver (see NCR_Q720 and zalon for
> inspiration)
>    that's simply a glue layer from zorro to ncr720.

If the rest is working, something like this should not be a big problem...


Ciao, Ren


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On Tue, Sep 30, 2003 at 03:59:32PM +0200, Rene Brothuhn wrote:
> I have looked in the ncr53c8xx driver from 2.6 and there is mentioned that 
> "interrupt on the fly" is not working correctly for 720. Also 
> sym53c8xx_defs.h is included and so the registerset from a 810 is used, 
> but the 720/770 registers are slightly different.
> Is the NCR_Q720 or zalon driver working?

Yes, they're both working fine.

I went over the 770 register definitions the other night and only found
one difference between the names of the definitions in the sym53c8xx_defs
file and the 770 PDF and that was:

-/*3a*/  u_char    nc_sbr;
+/*3a*/  u_char    nc_sbr; /* dwt on 720 */

This is the DMA watchdog timer, but it's not actually used by the driver.
It's a `scratch byte register' on the 895.  Some of the `reserved'
fields in the 770 register definition have names, but they were only
ever touched if the chip was a sufficiently recent revision.

BTW, I couldn't see a document for the 720 chip on the LSI site -- only
the 710 and 770.  I presume I won't go far wrong treating them the same.

> > - Someone implements the non-coherent DMA interfaces for PowerPC.
> 
> So, maybe I can do that at least for APUS, because some of the needed 
> interfaces I already created as a "dirty-hack" inside the 53c770 driver. 
> But the mean problem is, that there is no working 2.6 kernel for APUS... 
> The other problem is time, but maybe I find some hours on weekend...

Yeah, no hurry.  I don't think we have to get this done before 2.6.0 is
out -- after all, it's only a driver.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi,

On Tue, 30 Sep 2003, Rene Brothuhn wrote:

> But the mean problem is, that there is no working 2.6 kernel for APUS... 

That's not really true anymore, it boots here now. :-)

bye, Roman



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I am trying to locate a driver (download or CD) for an PCI IEEE-488
National Instruments HP-IB interface card (similar to the HP E2078A /
82350B) using Linux via HP 9000/B2000 workstation. If anyone knows of
such a driver and where I can obtain it, please reply back.

Thanks
Jesse
Cypress Technology Inc
Re-Sellers of HP 9000/3000 Hardware
Jesse@cypress-tech.com




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Linux HP-IB Driver
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On Tue, Sep 30, 2003 at 11:04:19AM -0400, Jesse Dougherty wrote:
> I am trying to locate a driver (download or CD) for an PCI IEEE-488
> National Instruments HP-IB interface card (similar to the HP E2078A /
> 82350B) using Linux via HP 9000/B2000 workstation. If anyone knows of
> such a driver and where I can obtain it, please reply back.

A quick google found ftp://ftp.llp.fu-berlin.de/pub/linux/LINUX-LAB/IEEE488

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: James Bottomley <James.Bottomley@steeleye.com>
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On Tue, 2003-09-30 at 08:59, Matthew Wilcox wrote:
> It makes a lot of sense to treat all the devices that firmware tells us
> about as parisc_devices since we treat them all the same way.  If we
> were stepping over ourselves saying "well, yes, this is a pluggable
> device and therefore we have to access it like that, but this one's
> on the motherboard and therefore we treat it like that", I'd agree.
> But all these devices are in the same namespace, firmware tells us
> about all of them in the same way, so I think we should continue with
> the parisc_device.

Yes, I was just musing about the way we did it.  In theory, the
difference between a "platform" device and a generic device is that a
generic device has a bus, and a platform one doesn't.  The
platform_device also has a resource pointer and a few other bits and
pieces the generic device doesn't.

What I did for PA was to create a parisc bus type, and attach all the
inventoried hardware to it.  This blurs the bus distinction in generic
device because we have several inventoried buses: Runway, GSC, LASI etc.
that are all lumped under the parisc bus.

I was just wondering if it wouldn't make more sense now for us to be
using platform devices too...

James


> >From a historical perspective, we've had parisc_devices in
> one form or another since the very start of the project.
> They were called hp_devices until about August 2001.  See
> http://ftp.parisc-linux.org/patches/parisc_device-2.diff for the
> conversion.
> 
> I don't know much about Amiga/Zorro.  Maybe it'd make sense for Amiga
> platform devices to be faked as zorro_devices, but I doubt it.  In
> any case, the 4000T SCSI is a 53c710, not a 720.
> 
> -- 
> "It's not Hollywood.  War is real, war is primarily not about defeat or
> victory, it is about death.  I've seen thousands and thousands of dead bodies.
> Do you think I want to have an academic debate on this subject?" -- Robert Fisk




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Subject: Re: [parisc-linux] N Class SMP pb ?  (follow up)
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Xref: news.gmane.org gmane.linux.ports.parisc:19694

Hi Grant,

Here is the very last test I did yesterday with the additional mdelay(100):

>TOC the machine, "ser pim" and look at PSW in TOC Info for each CPU.
>bit 0 is the I-Bit IIRC.

In summary:
-------  Processor 1 HPMC Information - PDC Ver
ion: 41.28  ------
[...]
CPU State                    = 0x9e000004
[...]
CPU Diagnose Register 2      = 0x0301010800802004
CPU Status Register 0        = 0x2640c24000000000
CPU Status Register 1        = 0x8000200000000000
[...]
-------  Proces
or 3 HPMC Information - PDC Version: 41.28  ------
[...]
CPU State                    = 0x9e000004
[...]
CPU Diagnose Register 2      = 0x0301030800802004
CPU Status Register 0        = 0x3640c24000000000
CPU Status Register 1        = 0x80000000
0000000
[...]

all I bits (well the lowest weight PSW bit :) ) are well 0


>Could be.
>Add mdelay(100) (or higher) after the lines of output you've added.
>The works if it's a functional problem that's not timing dependent.

Well after a ver
 long time of boot the system finaly crash without any
reason of panic??? (all interruption should be manage by handle_interruption?)

Just in case here is a short Pim-analyse:
-------  Processor 1 HPMC Information - PDC Version: 41.28  ------ 

GR of CPU[1]
00-03  0000000000000000  000000001041b018  000000001014dbf0  0000000000000000
04-07  0000000000008000  000000008d113c00  0000000040200000  0000000000008000
08-11  0000000000000000  000000008d2cd008  0000000080000000  00000000103fa2c8
12-15  0000000040180000  000000008d9a6280  00000000105389c0  0000000000000000
16-19  000000001045cf88  00000000103b6338  000000008d147010  ffffffffffffffff
20-23  00000000000001ff  0000000040178000  000000008d9a6280  0000000000088000
24-27  0000000040180000  0000000000000006  0000000040180000  00000000105389c0
28-31  0000000000000000  000000008d7ccef0  000000008d7ccf40  0000000000008000

GR[02] == rp = 000000001014dbf0

Func: zap_page_range, Off: 0xe0, Addr: 0x1014dbf0

    1014dbf0:	08 0e 02 5b 	copy r14,dp
    1014dbf4:	03 c0 08 b4 	mfctl tr6,r20
    1014dbf8:	4a 93 00 b0 	ldw 58(r20),r19
    1014dbfc:	29 c5 20 00 	addil b000,r14,%r1

GR[22] == t1(32bits) == arg4(64bits) = 000000008d9a6280

GR[21] == t2(32bits) == arg5(64bits) = 0000000040178000

GR[20] == t3(32bits) == arg6(64bits) = 00000000000001ff

GR[19] == t4(32bits) == arg7(64bits) = ffffffffffffffff

GR[26] == arg0 = 0000000040180000

GR[25] == arg1 = 0000000000000006

GR[24] == arg2 = 0000000040180000

GR[23] == arg3 = 0000000000088000

GR[27] == dp = 00000000105389c0

Func: __gp, Off: 0x0, Addr: 0x105389c0


GR[28] == ret0 = 0000000000000000

GR[29] == ret1 or sl = 000000008d7ccef0

GR[30] == sp = 000000008d7ccf40

GR[31] == ble rp = 0000000000008000
	Not parsable address!

CR of CPU[1]
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  00000000000002b2  0000000000000000  00000000000000c0  0000000000000003
12-15  0000000000000000  0000000000000000  0000000000107000  ffe0000000000000
16-19  000003182e3e3f89  0000000000000000  000000001014deac  0000000036b52000
20-23  00000000103401f5  00000000f33ccdd8  000000ff080ef70f  8000000000000000
24-27  0000000000461000  000000007d147000  0000000000041020  000000ffff95c810
28-31  5555555555555555  5555555555555555  000000008d7cc000  00000000105a0000

CR[00] == rctr = 0000000000000000

CR[08] == (Protection ID) pidr1 = 00000000000002b2

CR[10] == ccr = 00000000000000c0

CR[11] == sar = 0000000000000003

CR[14] == iva = 0000000000107000

CR[15] == eiem = ffe0000000000000

CR[16] == itmr = 000003182e3e3f89

CR[17] == pcsq = 0000000000000000

CR[18] == pcoq = 000000001014deac

CR[19] == iir = 0000000036b52000

CR[20] == isr = 00000000103401f5

CR[21] == ior = 00000000f33ccdd8

CR[22] == ipsw = 000000ff080ef70f

CR[23] == eirw = 8000000000000000

CR[24] == tr0 (ptov) = 0000000000461000

CR[25] == tr1 (vtop) = 000000007d147000

CR[26] == tr2 = 0000000000041020

CR[27] == tr3 = 000000ffff95c810

CR[28] == tr4 = 5555555555555555

CR[29] == tr5 = 5555555555555555

CR[30] == tr6 = 000000008d7cc000

CR[31] == tr7 = 00000000105a0000

SR of CPU[1]
00-03  0000ac80          0000ac80          00000000          0000ac80
04-07  00000000          00000000          00000000          00000000
Need much more work !!!

SR[00] == ts0 = 0000ac80

SR[01] == ts1 = 0000ac80

SR[03] == cpp = 0000ac80
	Not parsable address!
...
IIA Offset (back entry)      = 0x000000001014dea0
...

e.g. IAOQ = 0x000000001014dea0

FPR of CPU[1]
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  000000008f760ec0  0000000000000002  000000001359d740  0000000000000420
08-11  0000000000000000  0000000000000802  00000000105389c0  000000001059a000
12-15  0000000013590000  0000000000000000  0000000010180574  00000000103dc6b8
16-19  00000000000009ee  000000008fa7e000  00000000105389c0  0000000013590000
20-23  00000000103b7b0c  fffffffffffffff4  000000000000021e  0000002f66666667
24-27  000007b100000000  0000999903590b70  0000000003590b78  000000001041b980
28-31  000000001041b980  00000000ff915e20  0000000010187b38  0000000000000004

Parse IAOQ = 0x000000001014dea0 for CPU[1]

Func: zap_page_range, Off: 0x390, Addr: 0x1014dea0

    1014dea0:	06 a0 52 00 	pdtlb r0(sr1,r21)
    1014dea4:	37 39 3f ff 	ldo -1(r25),r25
    1014dea8:	bf 33 3f e5 	cmpb,*<> r19,r25,1014dea0 <zap_page_range+0x390>
    1014deac:	36 b5 20 00 	ldo 1000(r21),r21
-------  Processor 3 HPMC Information - PDC Version: 41.28  ------ 

GR of CPU[3]
00-03  0000000000000000  0000000010429028  000000001010cdd0  0000000000000021
04-07  000000008d0c05b8  00000000105389c0  000000000000000f  0000000000000000
08-11  0000000000000000  0000000040026ee2  0000000040039141  0000000040026fb4
12-15  0000000040028380  00000000faf00950  00000000400342f4  0000000000000000
16-19  000000008d0c05b8  00000000faf00910  00000000faf00910  0000000000058706
20-23  000003182e080065  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  00000000000003e8  00000000105389c0
28-31  0000000000086470  0000000000086470  000000008d0c0b40  0000000000000226

GR[02] == rp = 000000001010cdd0

Func: handle_interruption, Off: 0xb0, Addr: 0x1010cdd0

    1010cdd0:	08 05 02 5b 	copy r5,dp
    1010cdd4:	02 00 08 b4 	mfctl itmr,r20
    1010cdd8:	02 00 08 b3 	mfctl itmr,r19
    1010cddc:	0a 93 04 33 	sub r19,r20,r19
	...
    1010cde0:	be 7c bf e5 	cmpb,*>> ret0,r19,1010cdd8 <handle_interruption+0xb8>

	...
	...
    1010cdec:	ec 7f bf c5 	cmpib,*<> -1,r3,1010cdd4 <handle_interruption+0xb4>

	...

GR[22] == t1(32bits) == arg4(64bits) = 0000000000000000

GR[21] == t2(32bits) == arg5(64bits) = 0000000000000000

GR[20] == t3(32bits) == arg6(64bits) = 000003182e080065

GR[19] == t4(32bits) == arg7(64bits) = 0000000000058706

GR[26] == arg0 = 00000000000003e8

GR[25] == arg1 = 0000000000000000

GR[24] == arg2 = 0000000000000000

GR[23] == arg3 = 0000000000000000

GR[27] == dp = 00000000105389c0

Func: __gp, Off: 0x0, Addr: 0x105389c0


GR[28] == ret0 = 0000000000086470

GR[29] == ret1 or sl = 0000000000086470

GR[30] == sp = 000000008d0c0b40

GR[31] == ble rp = 0000000000000226
	Not parsable address!

CR of CPU[3]
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  00000000000002b8  0000000000000000  00000000000000c0  000000000000003f
12-15  0000000000000000  0000000000000000  0000000000107000  ffe0000000000000
16-19  000003182e158ca8  0000000000000000  000000001010cde0  00000000be7cbfe5
20-23  00000000103401f4  00000000300c0b50  000000ff0804ff0e  8000000000000000
24-27  0000000000461000  000000007d0c4000  0000000000041020  000000ffff95c810
28-31  000000ffff95c810  5555555555555555  000000008d0c0000  0000000000008020

CR[00] == rctr = 0000000000000000

CR[08] == (Protection ID) pidr1 = 00000000000002b8

CR[10] == ccr = 00000000000000c0

CR[11] == sar = 000000000000003f

CR[14] == iva = 0000000000107000

CR[15] == eiem = ffe0000000000000

CR[16] == itmr = 000003182e158ca8

CR[17] == pcsq = 0000000000000000

CR[18] == pcoq = 000000001010cde0

CR[19] == iir = 00000000be7cbfe5

CR[20] == isr = 00000000103401f4

CR[21] == ior = 00000000300c0b50

CR[22] == ipsw = 000000ff0804ff0e

CR[23] == eirw = 8000000000000000

CR[24] == tr0 (ptov) = 0000000000461000

CR[25] == tr1 (vtop) = 000000007d0c4000

CR[26] == tr2 = 0000000000041020

CR[27] == tr3 = 000000ffff95c810

CR[28] == tr4 = 000000ffff95c810

CR[29] == tr5 = 5555555555555555

CR[30] == tr6 = 000000008d0c0000

CR[31] == tr7 = 0000000000008020

SR of CPU[3]
00-03  0000ae00          00006e00          00000000          0000ae00
04-07  00000000          00000000          00000000          00000000
Need much more work !!!

SR[00] == ts0 = 0000ae00

SR[01] == ts1 = 00006e00

SR[03] == cpp = 0000ae00
	Not parsable address!
...
IIA Offset (back entry)      = 0x000000001010cde4
...

e.g. IAOQ = 0x000000001010cde4

FPR of CPU[3]
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  000000008f760ec0  0000000000000002  000000001359d740  0000000000000420
08-11  0000000000000000  0000000000000802  00000000105389c0  000000001059a000
12-15  0000000013590000  0000000000000000  0000000010180574  00000000103dc6b8
16-19  00000000000009ee  000000008fa7e000  00000000105389c0  0000000013590000
20-23  00000000103b7b0c  fffffffffffffff4  0000000000000000  0000000000000000
24-27  0000999900000000  0000999903590b70  0000000003590b78  000000001041b980
28-31  000000001041b980  00000000ff915e20  0000000010187b38  0000000000000000

Parse IAOQ = 0x000000001010cde4 for CPU[3]

Func: handle_interruption, Off: 0xc4, Addr: 0x1010cde4

    1010cde0:	be 7c bf e5 	cmpb,*>> ret0,r19,1010cdd8 <handle_interruption+0xb8>
    1010cde4:	08 00 02 40 	nop
    1010cde8:	34 63 3f ff 	ldo -1(r3),r3
    1010cdec:	ec 7f bf c5 	cmpib,*<> -1,r3,1010cdd4 <handle_interruption+0xb4>

Any idea?

>Otherwise setup kernel crash dump and use tools from bruno/phi to view
>contents of the kernel message buffer.

Well, that seems to be the ultimate solution (I don't remember if it also
works on smp kernel?) but I will need to discuss a bit with them to see if
I reach to get a dump how could it be analysed?

Thanks again for your attention,
    Joel




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On Mon, Sep 29, 2003 at 04:00:10PM -0500, James Bottomley wrote:
> DMA-mapping.txt is only the pci_ DMA API.

Doh! yes...misread willy's comment. sorry.

grant


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On Tue, Sep 30, 2003 at 06:31:17PM +0200, Joel Soete wrote:
> Hi Grant,
> 
> Here is the very last test I did yesterday with the additional mdelay(100):
> 
> >TOC the machine, "ser pim" and look at PSW in TOC Info for each CPU.
> >bit 0 is the I-Bit IIRC.
> 
> In summary:
> -------  Processor 1 HPMC Information - PDC Version: 41.28  ------

Did you TOC the machine or did it HPMC?
I was under the impression the SW had hung and one needed to TOC
to regain control. TOC info is seperate from HPMC info.

If it's in fact HPMC, then look at IOAQ/GR02 for both CPUs
and see which functions they were executing in when HPMC occurred.

grant


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On Tue, Sep 30, 2003 at 10:32:23AM -0500, James Bottomley wrote:
> What I did for PA was to create a parisc bus type, and attach all the
> inventoried hardware to it.  This blurs the bus distinction in generic
> device because we have several inventoried buses: Runway, GSC, LASI etc.
> that are all lumped under the parisc bus.

All those busses conform to the HP IO ADC and thus could be
considered the same type of bus. Except for LASI, the above makes
sense to me.

LASI isn't a bus. This would be a candidate for "platform device"
since it's bridge-like device with integrate sub-devices.
EISA bridge chips might be a similar case.

> I was just wondering if it wouldn't make more sense now for us to be
> using platform devices too...

I don't understand "platform devices" vs "PCI devices" unless we
are talking about "custom", arch specific bridge chips.
A GSC device is a GSC device regardless of which board it's soldered to.
That's not the case for PCI?

grant


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>>
>> In summary:
>> -------  Processor 1 HPMC Information - PDC Version: 41.28  ------
>
>Did you TOC the machine or did it HPMC?
>I was under the impression the SW had hung and one needed to TOC
>to regain control. TOC info is seperate from HPM
 info.

Exact, but TOC info only contains 0 so I suposed that system do actualy
a HPMC but do not seems to be managed by handle_interruption() as at its
begining I put a printk() which was suposed to write the 'code' value?

to be more accurate:

[...]
    struct siginfo si;

    printk(KERN_ERR "%s(%d, ...).\n", __FUNCTION__, code);
    mdelay(100);
[...]

which allowing me to read a lot of 6, 15, 26 codes but never 1?

>
>If it's in fact HPMC, then look at IOAQ/GR02 for both CPUs
>and see which functions they were executing in when HPMC occurred.

which were for cpu[1]:
GR[02] == rp = 000000001014dbf0

Func: zap_page_range, Off: 0xe0, Addr: 0x1014dbf0

    1014dbf0:  08 0e 02 5b   copy r14,dp
    1014dbf4:  03 c0 08 b4   mfctl tr6,r20
    1014dbf8:  4a 93 00 b0   ldw 58(r20),r19
    1014dbfc:  29 c5 20 00   addil b000,r14,%r1

[...]
Parse IAOQ = 0x000000001014dea0 for CPU[1]

Func: zap_page_range, Off: 0x390, Addr: 0x1014dea0

    1014dea0:  06 a0 52 00   pdtlb
r0(sr1,r21)
    1014dea4:  37 39 3f ff   ldo -1(r25),r25
    1014dea8:  bf 33 3f e5   cmpb,*<> r19,r25,1014dea0 <zap_page_range+0x390>
    1014deac:  36 b5 20 00   ldo 1000(r21),r21

And for cpu[3]:
GR[02] == rp = 000000001010cdd0

Func: handle
interruption, Off: 0xb0, Addr: 0x1010cdd0

    1010cdd0:  08 05 02 5b   copy r5,dp
    1010cdd4:  02 00 08 b4   mfctl itmr,r20
    1010cdd8:  02 00 08 b3   mfctl itmr,r19
    1010cddc:  0a 93 04 33   sub r19,r20,r19
  ...

Parse IAOQ = 0x000000
01010cde4 for CPU[3]

Func: handle_interruption, Off: 0xc4, Addr: 0x1010cde4

    1010cde0:  be 7c bf e5   cmpb,*>> ret0,r19,1010cdd8 <handle_interruption+0xb8>
    1010cde4:  08 00 02 40   nop
    1010cde8:  34 63 3f ff   ldo -1(r3),r3
    1010
dec:  ec 7f bf c5   cmpib,*<> -1,r3,1010cdd4 <handle_interruption+0xb4>


Am i wrong if I presume that the nop isn would be harmless on cpu[3] OTC
'pdtlb r0(sr1,r21)' ?  But I do not read any code 10 printout by printk()
anyway it is the only exception: Privileged operation trap.

Thanks again,
    Joel




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Brilliant i now have X working on my B2000 with the Visuialize-EG Card... 

The way to use the 2nd card is to specify the BusID in the XF86Config-4 file.

BusID      "PCI:1:1:0"

Although I dont seem to be able to get the depth anywhere above 8... Does 
anyone have any thoughs on this. 

Thanks



> Grant Grundler wrote:
> 
> >On Tue, Sep 16, 2003 at 08:03:07PM +0100, mmogenius@v8fiesta.co.uk wrote:
> >  
> >
> >>I have tried this but i am still getting the same error message... 
> >>
> >>Fatal server error:
> >>AddScreen/ScreenInit Failed for driver 0 
> >>    
> >>
> >
> >
> >  
> >
> >>With me having 2 cards in the machine do i need to specify wich one to use
> ?
> >>    
> >>
> >
> >Maybe. I would expect the default to be the console.
> >Can you remove one of the cards?
> >  
> >
> hmm I presume that the first one is the builtin (not removable) gfx 
> (which is not supported :( ) and the additional one is supported and 
> pluged into a pci slot (so removable but the one usefull)?
> 
> Afaik i don't think that it is possible to 'remove' (even logicaly with 
> some strap or switch) the builtin gfx.
> Anyway, it is possible to change the default monitor to 'graphics1' (as 
> afaik here the pdc would recognise the additional gfx) with help of 
> COnfiguration submenu at bootprompt. (may be MO cmd would help to get 
> more accurate info?)
> 
> Or (into linux system) should it be also possible to create a /dev/fb1 
> (MAKEDEV iirc) and change with fbset the default fb device to fb1?
> 
> >  
> >
> >>if so where can i get the information to do this as i am not having much
> luck 
> >>finding any documentation. Thanks
> >>    
> >>
> >
> >Try searching tha parisc-linux mailing list for "ScreenInit Failed".
> >Plenty of hits on this topic.
> >
> >If none of the above helps, can you post the full Xfree86.log.0?
> >
> >grant
> >
> hth,
>     Joel
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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From: Ruediger Scholz <rscholz@hrzpub.tu-darmstadt.de>
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Subject: [parisc-linux] Missing functions ?
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Hi there,

lastest kernel from CVS didn't compile for me. I get the following error 
messages:

    --------><------------
      CHK     include/linux/compile.h
      CC      arch/parisc/kernel/parisc_ksyms.o
    arch/parisc/kernel/parisc_ksyms.c:72: error: `__flush_dcache_page'
    undeclared here (not in a function)
    arch/parisc/kernel/parisc_ksyms.c:72: error: initializer element is
    not constant
    arch/parisc/kernel/parisc_ksyms.c:72: error: (near initialization
    for `__ksymtab___flush_dcache_page.value')
    arch/parisc/kernel/parisc_ksyms.c:75: error: `flush_cache_all_local'
    undeclared here (not in a function)
    arch/parisc/kernel/parisc_ksyms.c:75: error: initializer element is
    not constant
    arch/parisc/kernel/parisc_ksyms.c:75: error: (near initialization
    for `__ksymtab_flush_cache_all_local.value')
    make[1]: *** [arch/parisc/kernel/parisc_ksyms.o] Fehler 1
    make: *** [arch/parisc/kernel] Fehler 2
    ruediger@gandalf:/usr/src/linux-2.6$
    --------><------------

It seems that in include/asm/cache.h these two function 
flush_cache_all_local and flush_dcache_page are missing, which are 
defined as symbols in parisc_ksyms. Can I just disable/comment the 
regarding EXPORT_SYMOBOL calls?

Greeting,
    Ruediger



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Missing functions ?
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On Wed, Oct 01, 2003 at 01:02:40PM +0200, Ruediger Scholz wrote:
> Hi there,
> 
> lastest kernel from CVS didn't compile for me. I get the following error 
> messages:

Sorry about that; try updating now.  I've turned on CONFIG_MODULES so
I should notice these problems in the future.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Wed, 1 Oct 2003 mmogenius@v8fiesta.co.uk wrote:

> Brilliant i now have X working on my B2000 with the Visuialize-EG Card...
>
> The way to use the 2nd card is to specify the BusID in the XF86Config-4 file.
>
> BusID      "PCI:1:1:0"
>
> Although I dont seem to be able to get the depth anywhere above 8... Does
> anyone have any thoughs on this.

Visualize-EG is a 8bit only card.

It can displake 'fake hi/true-colour' using HP's Color Recovery technology,
but hardly any non-HP software supports that (ie. I know only
of ImageMagick).

There is AFAIK no 24/32bit true colour PCI graphic cards that work on
Linux/PA-RISC in the moment. I'd love to hear that I'm wrong ...

Max


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Hi Grant,

I also notice additional info:

a) in SL (gsp console) A grab severall message as:

Log Entry #   0 : 
SYSTEM NAME: ap8002
DATE: 10/01/2003 TIME: 16:32:35
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 8 = I/O 
SOURCE DETAIL: 2 = system bus adapter   SOURCE ID: 1
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 3
CALLER SUBACTIVITY: 33 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 01

0x7000102082016333 00000000 00B92200 type 14 = Problem Detail
0x5800182082016333 00006709 01102023 type 11 = Timestamp 10/01/2003 16:32:35
Type CR for next entry, Q CR to quit.

Which seems indicating an I/O pb (But I don't know how much there are relevant
because: 'implementation dependent')

b) at the end of the pim info I also notice:
[...]
------------  I/O Module Error Log Information  ------------

Summary of IO subsystem log entries
-----------------------------------
                        Phys Loc             Vendor  Device   Severity
Description             (hex)                 Id      Id      CORR UNC FE
 CW
-----------             -----                ------  ------   ----------------
System Bus Adapter SB  0x000000ffffffff82   0x103c  0x1050              X
System Bus Adapter SB  0x000000ffffffff82   0x103c  0x1050              X


Detail display of IO subsystem log entries
------------------------------------------

System Bus Adapter -- System Bus Interface
------------------------------------------

Timestamp =    Wed Oct  1 16:32:31 GMT 2003    (20:03:10:01:16:32:31)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X       X     ERR_ERROR       X                X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0xfffffffffed00000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000007ff0034

System Bus Adapter -- System Bus Interface
------------------------------------------

Timestamp =    Wed Oct  1 16:32:31 GMT 2003    (20:03:10:01:16:32:31)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X       X     ERR_ERROR       X                X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0xfffffffffed40000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff01

Module Error Register   = 0x0000000007ff0034
[...]

And "IO Responder Address    = 0xfffffffffed40000" match the bootlog entry:
Found devices:
[...]
11. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed40000 [1], versions
0x803, 0x0, 0xc

And "IO Responder Address    = 0xfffffffffed00000" 
2. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed00000 [0], versions
0x803, 0x0, 0xc

Could it be the sources of the crash pb?

Thanks in advance,
    Joel



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Hi all,

while trying to bring up 2.6.0-test6 on an a500, i noticed that it is 
not able to use raid0 devices. raid1 seems fine. has anyone else seen 
this?

the error i see in the log is:
md: error, md_import_device() returned -16

i haven't had time to look deeper into this yet...

thx
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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HOL AntiVirus for Linux i686 version: 8.3.2 (snapshot-20020108)

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Subject: [parisc-linux] HP HSC J3516A (2 port) ethernet card  (supported??)
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Hello,

I am trying to configure two HP J3516A's that I have in an R390.  They
initially showed up while using the debian installation cd as eth0 and
eth1 (the internal lan was eth2).  However, after reboot it seems that
they are not being correctly initialized by the kernel (internal lan is
now eth0).

The following is the pertinent kernel output :

3. HP HSC-PCI Cards (4) at 0xf1008000 [8/8], versions 0x4, 0x0, 0x9d
4. HP HSC-PCI Cards (4) at 0xf100c000 [8/12], versions 0x4, 0x0, 0x9d
Enumerating EISA bus
EISA slot 1 a configured board was not detected ( expected ___FFFF)
Dino version 3.x (card mode) found at 0xf1008000
Dino: Failed to allocate memory region
Dino version 3.x (card mode) found at 0xf100c000
Dino: Failed to allocate memory region
Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
PCI: Unable to reserve I/O region #1:80@8050000 for device 01:01.0
Trying to free nonexistent resource <08050000-0805007f>
Trying to free nonexistent resource <41000000-4100007f>
PCI: Unable to reserve I/O region #1:80@dfd38800 for device 01:02.0
Trying to free nonexistent resource <dfd38800-dfd3887f>
Trying to free nonexistent resource <bfbe6680-bfbe66ff>
PCI: Unable to reserve I/O region #1:80@af335c00 for device 02:01.0
Trying to free nonexistent resource <af335c00-af335c7f>
Trying to free nonexistent resource <ff93e700-ff93e77f>
PCI: Unable to reserve I/O region #1:80@55b26500 for device 02:02.0
Trying to free nonexistent resource <55b26500-55b2657f>
Trying to free nonexistent resource <7e818a00-7e818a7f>

Are these cards currently supported?  If yes, then what could be causing
these problems?

Also, I am having some problems with the internal NIC.  It appears as if
the card is working properly, however I am seeing the following errors
and am unable to ping any machine on my network (still investigating ARP
and the speed settings on our switch).  Figured I would include this in
the case that it indicates problems with the other two network
cards(???).

Oct  1 19:52:15 mplekwb2 kernel: eth0: 82596 at 0xffd07000, 08 00 09 B8
77 A4 IRQ 87.
Oct  1 19:52:15 mplekwb2 kernel: eth0: Transceiver problem.
Oct  1 20:02:39 mplekwb2 kernel: eth0: Transceiver problem.
Oct  1 20:05:28 mplekwb2 kernel: eth0: command unit timed out, status
resetting.
Oct  1 20:11:39 mplekwb2 kernel: eth0: link ok.
Oct  1 20:14:05 mplekwb2 kernel: eth0: command unit timed out, status
resetting.

And here is the complete kernel boot output :

Linux version 2.4.17-32 (root@paer) (gcc version 3.0.4) #1 Sat Mar 16
17:09:00 MST 2002
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005ba0 00000491 00000000 00000002 77800b8b 100000f0 00000008
000000b2 000000b2
vers  00000501
CPUID vers 14 rev 23 (0x000001d7)
model 9000/800/R390
Total Memory: 1024 Mb
pagetable_init
On node 0 totalpages: 262144
zone(0): 262144 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=3D/dev/sda5 HOME=3D/ console=3DttyS0 =
TERM=3Dvt102
palo_kernel=3D2/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 478.41 BogoMIPS
Memory: 1029104k available
Dentry-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 65536 (order: 6, 262144 bytes)
Page-cache hash table entries: 262144 (order: 8, 1048576 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf,
0xb
2. Mombasa GS Add-on mass FC (A3591) (4) at 0xf1004000 [8/4], versions
0x18, 0x0, 0xa7
3. HP HSC-PCI Cards (4) at 0xf1008000 [8/8], versions 0x4, 0x0, 0x9d
4. HP HSC-PCI Cards (4) at 0xf100c000 [8/12], versions 0x4, 0x0, 0x9d
5. UL 550 Lasi Core BA (11) at 0xffd00000 [8/16], versions 0x2f, 0x0,
0x81,  additional addresses: 0xffd0c000 0xffc00000=20
6. UL 550 Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x2f,
0x0, 0x74,  additional addresses: 0xffd01000 0xffd03000=20
7. UL 550 Lasi Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x2f,
0x0, 0x8c8. UL 550 Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x2f,
0x0, 0x82
9. UL 350 Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x2f,
0x0, 0x8a
10. UL 550 Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x2f,
0x0, 0x84
11. UL 550 Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x2f,
0x0, 0x84
12. UL 550 Core Wax BA (11) at 0xffe00000 [8/20], versions 0x31, 0x0,
0x8e
13. UL 550 Wax Core RS-232 (10) at 0xffe02000 [8/20/2], versions 0x31,
0x0, 0x8c
14. UL 550 Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x31, 0x0,
0x90,  additional addresses: 0xffc88000=20
15. U2-IOA BC GSC+ Port (7) at 0xf103f000 [8/63], versions 0x501, 0x1,
0xc
16. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf,
0xb
17. Mombasa GS Add-on mass FC (A3591) (4) at 0xf180c000 [10/12],
versions 0x18, 0x0, 0xa7
18. U2-IOA BC GSC+ Port (7) at 0xf183f000 [10/63], versions 0x501, 0x1,
0xc
19. UL 2w U+/240 (350/550) (0) at 0xfffa0000 [32], versions 0x5ba, 0x0,
0x4
20. UL 2w U+/240 (350/550) (0) at 0xfffa2000 [34], versions 0x5ba, 0x0,
0x4
21. Memory (1) at 0xfffb1000 [49], versions 0x7e, 0x0, 0x9
CONFIG_SMP=3Dn  ignoring additional CPUs
CPU(s): 1 x PA8200 (PCX-U+) at 240.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
ccio-dma.c: failed to claim CCIO bus address space!
Lasi version 0 at 0xffd00000 found.
LED display at ffd0c000 registered
Wax at 0xffe00000 found.
Wax: HIL Keyboard-NMI registered.
Wax EISA Adapter found at 0xfc000000
EISA EEPROM at 0xffc88000
Enumerating EISA bus
EISA slot 1 a configured board was not detected ( expected ___FFFF)
Dino version 3.x (card mode) found at 0xf1008000
Dino: Failed to allocate memory region
Dino version 3.x (card mode) found at 0xf100c000
Dino: Failed to allocate memory region
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Enabled soft power switch (polling mode, io=3D0xf0140000).
Starting kswapd
Journalled Block Device driver loaded
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
ttyS00 at iomem 0xffd05800 (irq =3D 90) is a 16550A
ttyS01 at iomem 0xffe02800 (irq =3D 121) is a 16550A
PS/2 keyboard port at 0xffd08000 (irq 69) found, no device attached.
PS/2 psaux port at 0xffd08100 (irq 69) found, no device attached.
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)
block: 128 slots per queue, batch=3D32
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with
idebus=3Dxx
loop: loaded (max 8 devices)
Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
PCI: Unable to reserve I/O region #1:80@8050000 for device 01:01.0
Trying to free nonexistent resource <08050000-0805007f>
Trying to free nonexistent resource <41000000-4100007f>
PCI: Unable to reserve I/O region #1:80@dfd38800 for device 01:02.0
Trying to free nonexistent resource <dfd38800-dfd3887f>
Trying to free nonexistent resource <bfbe6680-bfbe66ff>
PCI: Unable to reserve I/O region #1:80@af335c00 for device 02:01.0
Trying to free nonexistent resource <af335c00-af335c7f>
Trying to free nonexistent resource <ff93e700-ff93e77f>
PCI: Unable to reserve I/O region #1:80@55b26500 for device 02:02.0
Trying to free nonexistent resource <55b26500-55b2657f>
Trying to free nonexistent resource <7e818a00-7e818a7f>
Found i82596 at 0xffd07000, IRQ 87
eth0: 82596 at 0xffd07000, 08 00 09 B8 77 A4 IRQ 87.
82596.c $Revision: 1.28 $
SCSI subsystem driver Revision: 1.00
53c700: Version 2.6 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2=20
scsi0 : LASI SCSI 53c700
scsi0: (2:0) Synchronous at offset 8, period 100ns
  Vendor: HP        Model: DVD-ROM 6x/32x    Rev: 1.08
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi0: (5:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST39175LW         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
scsi0: (6:0) Synchronous at offset 8, period 100ns
  Vendor: SEAGATE   Model: ST39175LW         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
scsi0: (5:0) Enabling Tag Command Queuing
SCSI device sda: 17783112 512-byte hdwr sectors (9105 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4 < sda5 >
scsi0: (6:0) Enabling Tag Command Queuing
SCSI device sdb: 17783112 512-byte hdwr sectors (9105 MB)
 sdb: unknown partition table
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 2, lun 0
sr0: scsi3-mmc drive: 0x/0x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12
sticonsole_init: searching for STI ROMs
BUG: Skipping previously registered driver: sti (native)
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :   526.400 MB/sec
   8regs_prefetch:   526.400 MB/sec
   32regs    :   408.800 MB/sec
   32regs_prefetch:   408.800 MB/sec
raid5: using function: 8regs_prefetch (526.400 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 8192 buckets, 64Kbytes
TCP: Hash tables configured (established 262144 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
NOT FREEING INITMEM (383k)

Thanks!

Pat Padgett


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On Thu, Oct 02, 2003 at 10:27:42AM -0500, Padgett, Pat M [NTWK SVCS] wrote:
> I am trying to configure two HP J3516A's that I have in an R390.  They
> initially showed up while using the debian installation cd as eth0 and
> eth1 (the internal lan was eth2).  However, after reboot it seems that
> they are not being correctly initialized by the kernel (internal lan is
> now eth0).

I realise this probably isn't the answer you wanted to hear; but is there
any chance you could try 2.6 on this machine?  We just got GSC Tulip
cards working properly in 2.6 and it'd be really useful to know that it
works on your box too.  After we know that, we can try backporting the
changes to 2.4.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Thu, Oct 02, 2003 at 10:27:42AM -0500, Padgett, Pat M [NTWK SVCS] wrote:
> Linux version 2.4.17-32 (root@paer) (gcc version 3.0.4) #1 Sat Mar 16
> 17:09:00 MST 2002

Oh, I just noticed this bit.  It's possible a later 2.4
kernel would support these cards better.  You can fetch
kernel-image-2.4.21-32-smp_pa7.2_hppa.deb from debian and install that.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] L2000/N4000 smp devices/boot compare??
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Hi all,

Sorry if annoying with smp but I have an opportunity to test an hypothesis:
2.4 64bits smp capability would work on a L2000 (because it works on a A500)

Yes it works (I just compile a kernel (while a 'top' showing me cc1 switching
from 
pu1 to cpu2 to cpu1...) because I just have it for some hours).

And I compare devices found:

[...]
model 9000/800/L2000-44
[...]
Searching for devices:
Found devices:
1. Rhapsody 440 (0) at 0xfffffffffffa0000 [160], versions 0x5c4, 0x0, 0x4

2. Rhapsody 440 (0) at 0xfffffffffffa6000 [166], versions 0x5c4, 0x0, 0x4
3. Astro BC Runway Port (12) at 0xfffffffffed00000 [0], versions 0x582,
0x0, 0xb
4. Elroy PCI Bridge (13) at 0xfffffffffed30000 [0/0], versions 0x782, 0x0,
0xa
5. Elroy PCI 
ridge (13) at 0xfffffffffed32000 [0/1], versions 0x782, 0x0,
0xa
6. Elroy PCI Bridge (13) at 0xfffffffffed34000 [0/2], versions 0x782, 0x0,
0xa
7. Elroy PCI Bridge (13) at 0xfffffffffed36000 [0/3], versions 0x782, 0x0,
0xa
8. Elroy PCI Bridge (13
 at 0xfffffffffed38000 [0/4], versions 0x782, 0x0,
0xa
9. Elroy PCI Bridge (13) at 0xfffffffffed3a000 [0/5], versions 0x782, 0x0,
0xa
10. Elroy PCI Bridge (13) at 0xfffffffffed3c000 [0/6], versions 0x782, 0x0,
0xa
11. Elroy PCI Bridge (13) at 0xf
fffffffed3e000 [0/7], versions 0x782, 0x0,
0xa
12. Memory (1) at 0xfffffffffed08000 [8], versions 0x95, 0x0, 0x9
CPU(s): 2 x PA8500 (PCX-W) at 440.000000 MHz
SBA found Astro 2.1 at 0xfffffffffed00000
[...]


[...]
model 9000/800/N4000-55
[...

Searching for devices...
Found devices:
1. Memory (1) at 0xfffffffffedc0000 [192], versions 0x90, 0x0, 0x9
2. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed00000 [0], versions
0x803, 0x0, 0xc
3. Elroy PCI Bridge (13) at 0xffffffffbffe000 [0/0], versions 0x782, 0x0,
0xa
4. Elroy PCI Bridge (13) at 0xffffffffbffe2000 [0/1], versions 0x782, 0x0,
0xa
5. Elroy PCI Bridge (13) at 0xffffffffbffe4000 [0/2], versions 0x782, 0x0,
0xa
6. Elroy PCI Bridge (13) at 0xffffffffbffe8000 [0/4], versions 0x782, 0x0,
0xa
7. Elroy PCI Bridge (13) at 0xffffffffbffea000 [0/5], versions 0x782, 0x0,
0xa
8. Elroy PCI Bridge (13) at 0xffffffffbfff0000 [0/8], versions 0x782, 0x0,
0xa
9. Elroy PCI Bridge (13) at 0xffffffffbfff4000 [0/10], versions 0x782, 0x0,
0xa
10. Elroy PCI Bridge (13) at 0xffffffffbfff8000 [0/12], versions 0x782, 0x0,

0xa
11. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed40000 [1], versions
0x803, 0x0, 0xc
12. Elroy PCI Bridge (13) at 0xfffffffffece0000 [1/0], versions 0x782, 0x0,
0xa
13. Elroy PCI Bridge (13) at 0xfffffffffece4000 [1/2], versions 0x782, 0x0,
0xa
14. Elroy PCI Bridge (13) at 0xfffffffffece8000 [1/4], versions 0x782, 0x0,
0xa
15. Elroy PCI Bridge (13) at 0xfffffffffecf0000 [1/8], versions 0x782, 0x0,
0xa
16. Elroy PCI Bridge (13) at 0xfffffffffecf4000 [1/10], versions 0x782, 0x0,

0xa
17. Elroy PCI Bridge (13) at 0xfffffffffecf8000 [1/12], versions 0x782, 0x0,

0xa
18. DEW BC Runway Port (7) at 0xfffffffffed24000 [36], versions 0x584, 0x0,
0xc
19. Unknown machine (0) at 0xfffffffffed25000 [37], versions 0x5d3, 0x0,
0x0
20. DEW BC Runway Port (7) at 0xfffffffffed2c000 [44], versions 0x584, 0x0,
0xc
21. Unknown machine (0) at 0xfffffffffed2d000 [45], versions 0x5d3, 0x0,
0x0

CPU(s): 2 x PA8600 (PCX-W+) at 550.000000 MHz
SBA found Ike rev 2 at 0xfffffffffed00000
SBA found Ike rev 2 at 0xfffffffffed40000
[...]

(trust me it exactly the same kernel on the same sys disk)

And so notice some differences (may be some one h
ve no matter, please advise):
on the L2k it first discver CPUs:
1. Rhapsody 440 (0) at 0xfffffffffffa0000 [160], versions 0x5c4, 0x0, 0x4
2. Rhapsody 440 (0) at 0xfffffffffffa6000 [166], versions 0x5c4, 0x0, 0x4

on the N4k latter:
18. DEW BC Runway Port (7) at 0xfffffffffed24000 [36], versions 0x584, 0x0,
0xc
19. Unknown machine (0) at 0xfffffffffed25000 [37], versions 0x5d3, 0x0,
0x0
20. DEW BC Runway Port (7) at 0xfffffffffed2c000 [44], versions 0x584, 0x0,
0xc
21. Unknown machine (0) at 0xfffffffffed2d000 [45], versions 0x5d3, 0x0,
0x0

and there are 'Unknown machine'?

But most _important_ (imho): SBA type and/or number;
on the L2k _ONE_
3. Astro BC Runway Port (12) at 0xfffffffffed00000 [0], versions 0x582,
0x0, 0xb

on the N4k _TWO_
2. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed00000 [0], versions
0x803, 0x0, 0xc
[...]
11. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed40000 [1], versions
0x803, 0x0, 0xc

And I trust that it is not the number of SBA which is most important difference
but well the type because iirc Grant mentioned that this is the same pb
on L3000 on which there are only one IKE type of SBA?

Am i wrong/right?

Is there any additional info about this SBA?

Thanks in advance for all advises,
    Joel




-------------------------------------------------------------------------
L'Internet rapide, c'est pour tout le monde. Tiscali ADSL, 19,50 Euro
pendant 3 mois! http://reg.tiscali.be/default.asp?lg=fr 




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I cc-ed parisc-linux@parisc-linux.org

> Hey everyone, i am having sobe trouble installing Debian hppa on a HP b1000
> , i
> have downloaded and burnen a netinstall ISO with kernelm 2.4.22 and got
> everything up and running, i booted from CD, i installed everything, partit=
> ioned
> the hard drive, got the network configured and the base system installed but
> when i try to make the system installable i get this error:
> 
> 
> Problem
> 
> PALO wasn=B4t able to install. You can still remote boot and point the root=
>  device
> to the installed system.

The most likely cause of this is the palo (aka F0) partition is past
the 2G mark on the disk or perhaps is too small or maybe there's no
partition at all.

> I have no idea how to fix this, "remote boot and point the dive to the inst=
> alled
> system?????" WTF???, when i reboot the machi and tri to point the boot load=
> er to
> the hard drive i get nowhere, can anyone give me hand?

Boot from the CD interactively so you can edit the boot command line.
Get rid of the initrd= argument entirely and change the root=/dev/ram
to root=/dev/sdaX where X is your root partition, then boot.  This'll
use the kernel from the CD instead of the one in the palo partition.

If this works, have a look at your partition table or post it here or
re-run palo by hand and examine (or post) the error messages.

	-P


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The following patch should make the unaligned handler work better.
(float ops were miscoded...)

lamont

--YiEDa0DAkWCtVeE4
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Index: unaligned.c
===================================================================
RCS file: /var/cvs/linux-2.4/arch/parisc/kernel/unaligned.c,v
retrieving revision 1.21
diff -u -r1.21 unaligned.c
--- unaligned.c	23 Sep 2003 20:15:33 -0000	1.21
+++ unaligned.c	2 Oct 2003 21:09:02 -0000
@@ -93,13 +93,17 @@
 #define OPCODE_STDA	OPCODE1(0x03,1,0xf)
 
 #define OPCODE_FLDWX	OPCODE1(0x09,0,0x0)
-#define OPCODE_FSTWX	OPCODE1(0x09,0,0x4)
+#define OPCODE_FLDWXR	OPCODE1(0x09,0,0x1)
+#define OPCODE_FSTWX	OPCODE1(0x09,0,0x8)
+#define OPCODE_FSTWXR	OPCODE1(0x09,0,0x9)
 #define OPCODE_FLDWS	OPCODE1(0x09,1,0x0)
-#define OPCODE_FSTWS	OPCODE1(0x09,1,0x4)
+#define OPCODE_FLDWSR	OPCODE1(0x09,1,0x1)
+#define OPCODE_FSTWS	OPCODE1(0x09,1,0x8)
+#define OPCODE_FSTWSR	OPCODE1(0x09,1,0x9)
 #define OPCODE_FLDDX	OPCODE1(0x0b,0,0x0)
-#define OPCODE_FSTDX	OPCODE1(0x0b,0,0x4)
+#define OPCODE_FSTDX	OPCODE1(0x0b,0,0x8)
 #define OPCODE_FLDDS	OPCODE1(0x0b,1,0x0)
-#define OPCODE_FSTDS	OPCODE1(0x0b,1,0x4)
+#define OPCODE_FSTDS	OPCODE1(0x0b,1,0x8)
 
 #define OPCODE_LDD_L	OPCODE2(0x14,0)
 #define OPCODE_FLDD_L	OPCODE2(0x14,1)
@@ -541,6 +545,8 @@
 
 	case OPCODE_FLDWX:
 	case OPCODE_FLDWS:
+	case OPCODE_FLDWXR:
+	case OPCODE_FLDWSR:
 		flop=1;
 		ret = emulate_ldw(regs,FR3(regs->iir),1);
 		break;
@@ -553,6 +559,8 @@
 
 	case OPCODE_FSTWX:
 	case OPCODE_FSTWS:
+	case OPCODE_FSTWXR:
+	case OPCODE_FSTWSR:
 		flop=1;
 		ret = emulate_stw(regs,FR3(regs->iir),1);
 		break;

--YiEDa0DAkWCtVeE4--


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From: Derek Engelhaupt <derekengelhaupt@rocketmail.com>
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Subject: Re: [parisc-linux] L2000/N4000 smp devices/boot compare??
Date: Thu, 2 Oct 2003 16:38:01 -0700 (PDT)
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Joel,
 
First off, since the N, L, and A class are of the same generation of machines they are similar in some respects.  Different in others.  The L1000 and L2000 have a system card unique to that set of machines.  Being that as it is, the L1000/2000 probably use a different I/O interface chip.  The L1500 and L3000 are in essence an N Class system card cut in half and therefore use the same I/O interface as the N.  The GSP in the L Class resides in the PCI card cage with the GSP in the N Class is a seperate card attaching directly to the system card via the hot swap disk backplane.  The extra unknown system buses probably reside on the GSP of the N Class.  That would be my educated guess of what the unknown system buses are.  The N has two IKEs since it has both a left and a right PCI card cage a
 ttached directly to the system board.
 
Derek

Joel Soete <soete.joel@tiscali.be> wrote:
Hi all,

Sorry if annoying with smp but I have an opportunity to test an hypothesis:
2.4 64bits smp capability would work on a L2000 (because it works on a A500)

Yes it works (I just compile a kernel (while a 'top' showing me cc1 switching
from 
pu1 to cpu2 to cpu1...) because I just have it for some hours).

And I compare devices found:

[...]
model 9000/800/L2000-44
[...]
Searching for devices:
Found devices:
1. Rhapsody 440 (0) at 0xfffffffffffa0000 [160], versions 0x5c4, 0x0, 0x4

2. Rhapsody 440 (0) at 0xfffffffffffa6000 [166], versions 0x5c4, 0x0, 0x4
3. Astro BC Runway Port (12) at 0xfffffffffed00000 [0], versions 0x582,
0x0, 0xb
4. Elroy PCI Bridge (13) at 0xfffffffffed30000 [0/0], versions 0x782, 0x0,
0xa
5. Elroy PCI 
ridge (13) at 0xfffffffffed32000 [0/1], versions 0x782, 0x0,
0xa
6. Elroy PCI Bridge (13) at 0xfffffffffed34000 [0/2], versions 0x782, 0x0,
0xa
7. Elroy PCI Bridge (13) at 0xfffffffffed36000 [0/3], versions 0x782, 0x0,
0xa
8. Elroy PCI Bridge (13
at 0xfffffffffed38000 [0/4], versions 0x782, 0x0,
0xa
9. Elroy PCI Bridge (13) at 0xfffffffffed3a000 [0/5], versions 0x782, 0x0,
0xa
10. Elroy PCI Bridge (13) at 0xfffffffffed3c000 [0/6], versions 0x782, 0x0,
0xa
11. Elroy PCI Bridge (13) at 0xf
fffffffed3e000 [0/7], versions 0x782, 0x0,
0xa
12. Memory (1) at 0xfffffffffed08000 [8], versions 0x95, 0x0, 0x9
CPU(s): 2 x PA8500 (PCX-W) at 440.000000 MHz
SBA found Astro 2.1 at 0xfffffffffed00000
[...]


[...]
model 9000/800/N4000-55
[...

Searching for devices...
Found devices:
1. Memory (1) at 0xfffffffffedc0000 [192], versions 0x90, 0x0, 0x9
2. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed00000 [0], versions
0x803, 0x0, 0xc
3. Elroy PCI Bridge (13) at 0xffffffffbffe000 [0/0], versions 0x782, 0x0,
0xa
4. Elroy PCI Bridge (13) at 0xffffffffbffe2000 [0/1], versions 0x782, 0x0,
0xa
5. Elroy PCI Bridge (13) at 0xffffffffbffe4000 [0/2], versions 0x782, 0x0,
0xa
6. Elroy PCI Bridge (13) at 0xffffffffbffe8000 [0/4], versions 0x782, 0x0,
0xa
7. Elroy PCI Bridge (13) at 0xffffffffbffea000 [0/5], versions 0x782, 0x0,
0xa
8. Elroy PCI Bridge (13) at 0xffffffffbfff0000 [0/8], versions 0x782, 0x0,
0xa
9. Elroy PCI Bridge (13) at 0xffffffffbfff4000 [0/10], versions 0x782, 0x0,
0xa
10. Elroy PCI Bridge (13) at 0xffffffffbfff8000 [0/12], versions 0x782, 0x0,

0xa
11. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed40000 [1], versions
0x803, 0x0, 0xc
12. Elroy PCI Bridge (13) at 0xfffffffffece0000 [1/0], versions 0x782, 0x0,
0xa
13. Elroy PCI Bridge (13) at 0xfffffffffece4000 [1/2], versions 0x782, 0x0,
0xa
14. Elroy PCI Bridge (13) at 0xfffffffffece8000 [1/4], versions 0x782, 0x0,
0xa
15. Elroy PCI Bridge (13) at 0xfffffffffecf0000 [1/8], versions 0x782, 0x0,
0xa
16. Elroy PCI Bridge (13) at 0xfffffffffecf4000 [1/10], versions 0x782, 0x0,

0xa
17. Elroy PCI Bridge (13) at 0xfffffffffecf8000 [1/12], versions 0x782, 0x0,

0xa
18. DEW BC Runway Port (7) at 0xfffffffffed24000 [36], versions 0x584, 0x0,
0xc
19. Unknown machine (0) at 0xfffffffffed25000 [37], versions 0x5d3, 0x0,
0x0
20. DEW BC Runway Port (7) at 0xfffffffffed2c000 [44], versions 0x584, 0x0,
0xc
21. Unknown machine (0) at 0xfffffffffed2d000 [45], versions 0x5d3, 0x0,
0x0

CPU(s): 2 x PA8600 (PCX-W+) at 550.000000 MHz
SBA found Ike rev 2 at 0xfffffffffed00000
SBA found Ike rev 2 at 0xfffffffffed40000
[...]

(trust me it exactly the same kernel on the same sys disk)

And so notice some differences (may be some one h
ve no matter, please advise):
on the L2k it first discver CPUs:
1. Rhapsody 440 (0) at 0xfffffffffffa0000 [160], versions 0x5c4, 0x0, 0x4
2. Rhapsody 440 (0) at 0xfffffffffffa6000 [166], versions 0x5c4, 0x0, 0x4

on the N4k latter:
18. DEW BC Runway Port (7) at 0xfffffffffed24000 [36], versions 0x584, 0x0,
0xc
19. Unknown machine (0) at 0xfffffffffed25000 [37], versions 0x5d3, 0x0,
0x0
20. DEW BC Runway Port (7) at 0xfffffffffed2c000 [44], versions 0x584, 0x0,
0xc
21. Unknown machine (0) at 0xfffffffffed2d000 [45], versions 0x5d3, 0x0,
0x0

and there are 'Unknown machine'?

But most _important_ (imho): SBA type and/or number;
on the L2k _ONE_
3. Astro BC Runway Port (12) at 0xfffffffffed00000 [0], versions 0x582,
0x0, 0xb

on the N4k _TWO_
2. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed00000 [0], versions
0x803, 0x0, 0xc
[...]
11. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed40000 [1], versions
0x803, 0x0, 0xc

And I trust that it is not the number of SBA which is most important difference
but well the type because iirc Grant mentioned that this is the same pb
on L3000 on which there are only one IKE type of SBA?

Am i wrong/right?

Is there any additional info about this SBA?

Thanks in advance for all advises,
Joel




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<DIV>Joel,</DIV>
<DIV>&nbsp;</DIV>
<DIV>First off, since the N, L, and A class are of the same generation of machines they are similar in some respects.&nbsp; Different in others.&nbsp; The L1000 and L2000 have a system card unique to that set of machines.&nbsp; Being that as it is, the L1000/2000 probably use a different I/O interface chip.&nbsp; The L1500 and L3000 are in essence an N Class system card cut in half and therefore use the same I/O interface as the N.&nbsp; The GSP in the L Class resides in the PCI card cage with the GSP in the N Class is a seperate card attaching directly to the system card via the hot swap disk backplane.&nbsp; The extra unknown system buses probably reside on the GSP of the N Class.&nbsp; That would be my educated guess of what the unknown system buses are.&nbsp; The N has two IKEs since i
 t has both a left and a right PCI card cage attached directly to the system board.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Derek</DIV>
<DIV><BR><B><I>Joel Soete &lt;soete.joel@tiscali.be&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Hi all,<BR><BR>Sorry if annoying with smp but I have an opportunity to test an hypothesis:<BR>2.4 64bits smp capability would work on a L2000 (because it works on a A500)<BR><BR>Yes it works (I just compile a kernel (while a 'top' showing me cc1 switching<BR>from <BR>pu1 to cpu2 to cpu1...) because I just have it for some hours).<BR><BR>And I compare devices found:<BR><BR>[...]<BR>model 9000/800/L2000-44<BR>[...]<BR>Searching for devices:<BR>Found devices:<BR>1. Rhapsody 440 (0) at 0xfffffffffffa0000 [160], versions 0x5c4, 0x0, 0x4<BR><BR>2. Rhapsody 440 (0) at 0xfffffffffffa6000 [166], versions 0x5c4, 0x0, 0x4<BR>3. Astro BC Runway Port (12) at 0xfffffffffed00000 [0], versions 0x582,<BR>0x
 0, 0xb<BR>4. Elroy PCI Bridge (13) at 0xfffffffffed30000 [0/0], versions 0x782, 0x0,<BR>0xa<BR>5. Elroy PCI <BR>ridge (13) at 0xfffffffffed32000 [0/1], versions 0x782, 0x0,<BR>0xa<BR>6. Elroy PCI
 Bridge (13) at 0xfffffffffed34000 [0/2], versions 0x782, 0x0,<BR>0xa<BR>7. Elroy PCI Bridge (13) at 0xfffffffffed36000 [0/3], versions 0x782, 0x0,<BR>0xa<BR>8. Elroy PCI Bridge (13<BR>at 0xfffffffffed38000 [0/4], versions 0x782, 0x0,<BR>0xa<BR>9. Elroy PCI Bridge (13) at 0xfffffffffed3a000 [0/5], versions 0x782, 0x0,<BR>0xa<BR>10. Elroy PCI Bridge (13) at 0xfffffffffed3c000 [0/6], versions 0x782, 0x0,<BR>0xa<BR>11. Elroy PCI Bridge (13) at 0xf<BR>fffffffed3e000 [0/7], versions 0x782, 0x0,<BR>0xa<BR>12. Memory (1) at 0xfffffffffed08000 [8], versions 0x95, 0x0, 0x9<BR>CPU(s): 2 x PA8500 (PCX-W) at 440.000000 MHz<BR>SBA found Astro 2.1 at 0xfffffffffed00000<BR>[...]<BR><BR><BR>[...]<BR>model 9000/800/N4000-55<BR>[...<BR><BR>Searching for devices...<BR>Found devices:<BR>1. Memory (1) at 0xfff
 ffffffedc0000 [192], versions 0x90, 0x0, 0x9<BR>2. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed00000 [0], versions<BR>0x803, 0x0, 0xc<BR>3. Elroy PCI Bridge (13) at 0xffffffffbffe000
 [0/0], versions 0x782, 0x0,<BR>0xa<BR>4. Elroy PCI Bridge (13) at 0xffffffffbffe2000 [0/1], versions 0x782, 0x0,<BR>0xa<BR>5. Elroy PCI Bridge (13) at 0xffffffffbffe4000 [0/2], versions 0x782, 0x0,<BR>0xa<BR>6. Elroy PCI Bridge (13) at 0xffffffffbffe8000 [0/4], versions 0x782, 0x0,<BR>0xa<BR>7. Elroy PCI Bridge (13) at 0xffffffffbffea000 [0/5], versions 0x782, 0x0,<BR>0xa<BR>8. Elroy PCI Bridge (13) at 0xffffffffbfff0000 [0/8], versions 0x782, 0x0,<BR>0xa<BR>9. Elroy PCI Bridge (13) at 0xffffffffbfff4000 [0/10], versions 0x782, 0x0,<BR>0xa<BR>10. Elroy PCI Bridge (13) at 0xffffffffbfff8000 [0/12], versions 0x782, 0x0,<BR><BR>0xa<BR>11. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed40000 [1], versions<BR>0x803, 0x0, 0xc<BR>12. Elroy PCI Bridge (13) at 0xfffffffffece0000 [1/0], vers
 ions 0x782, 0x0,<BR>0xa<BR>13. Elroy PCI Bridge (13) at 0xfffffffffece4000 [1/2], versions 0x782, 0x0,<BR>0xa<BR>14. Elroy PCI Bridge (13) at 0xfffffffffece8000 [1/4], versions 0x782,
 0x0,<BR>0xa<BR>15. Elroy PCI Bridge (13) at 0xfffffffffecf0000 [1/8], versions 0x782, 0x0,<BR>0xa<BR>16. Elroy PCI Bridge (13) at 0xfffffffffecf4000 [1/10], versions 0x782, 0x0,<BR><BR>0xa<BR>17. Elroy PCI Bridge (13) at 0xfffffffffecf8000 [1/12], versions 0x782, 0x0,<BR><BR>0xa<BR>18. DEW BC Runway Port (7) at 0xfffffffffed24000 [36], versions 0x584, 0x0,<BR>0xc<BR>19. Unknown machine (0) at 0xfffffffffed25000 [37], versions 0x5d3, 0x0,<BR>0x0<BR>20. DEW BC Runway Port (7) at 0xfffffffffed2c000 [44], versions 0x584, 0x0,<BR>0xc<BR>21. Unknown machine (0) at 0xfffffffffed2d000 [45], versions 0x5d3, 0x0,<BR>0x0<BR><BR>CPU(s): 2 x PA8600 (PCX-W+) at 550.000000 MHz<BR>SBA found Ike rev 2 at 0xfffffffffed00000<BR>SBA found Ike rev 2 at 0xfffffffffed40000<BR>[...]<BR><BR>(trust me it exactly t
 he same kernel on the same sys disk)<BR><BR>And so notice some differences (may be some one h<BR>ve no matter, please advise):<BR>on the L2k it first discver CPUs:<BR>1. Rhapsody 440 (0) at
 0xfffffffffffa0000 [160], versions 0x5c4, 0x0, 0x4<BR>2. Rhapsody 440 (0) at 0xfffffffffffa6000 [166], versions 0x5c4, 0x0, 0x4<BR><BR>on the N4k latter:<BR>18. DEW BC Runway Port (7) at 0xfffffffffed24000 [36], versions 0x584, 0x0,<BR>0xc<BR>19. Unknown machine (0) at 0xfffffffffed25000 [37], versions 0x5d3, 0x0,<BR>0x0<BR>20. DEW BC Runway Port (7) at 0xfffffffffed2c000 [44], versions 0x584, 0x0,<BR>0xc<BR>21. Unknown machine (0) at 0xfffffffffed2d000 [45], versions 0x5d3, 0x0,<BR>0x0<BR><BR>and there are 'Unknown machine'?<BR><BR>But most _important_ (imho): SBA type and/or number;<BR>on the L2k _ONE_<BR>3. Astro BC Runway Port (12) at 0xfffffffffed00000 [0], versions 0x582,<BR>0x0, 0xb<BR><BR>on the N4k _TWO_<BR>2. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed00000 [0], versi
 ons<BR>0x803, 0x0, 0xc<BR>[...]<BR>11. IKE I/O Bus Converter Merced Port (7) at 0xfffffffffed40000 [1], versions<BR>0x803, 0x0, 0xc<BR><BR>And I trust that it is not the number of SBA which is most
 important difference<BR>but well the type because iirc Grant mentioned that this is the same pb<BR>on L3000 on which there are only one IKE type of SBA?<BR><BR>Am i wrong/right?<BR><BR>Is there any additional info about this SBA?<BR><BR>Thanks in advance for all advises,<BR>Joel<BR><BR><BR><BR><BR>-------------------------------------------------------------------------<BR>L'Internet rapide, c'est pour tout le monde. Tiscali ADSL, 19,50 Euro<BR>pendant 3 mois! http://reg.tiscali.be/default.asp?lg=fr <BR><BR><BR>_______________________________________________<BR>parisc-linux mailing list<BR>parisc-linux@lists.parisc-linux.org<BR>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux</BLOCKQUOTE><p><hr SIZE=1>
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] L2000/N4000 smp devices/boot compare??
Date: Fri, 3 Oct 2003 01:18:10 +0100
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[Derek, could you possibly wrap your mails around 70 columns?  It's hard
to read/reply to your mails.]

On Thu, Oct 02, 2003 at 04:38:01PM -0700, Derek Engelhaupt wrote:
> First off, since the N, L, and A class are of the same generation
> of machines they are similar in some respects.  Different in others.
> The L1000 and L2000 have a system card unique to that set of machines.
> Being that as it is, the L1000/2000 probably use a different I/O
> interface chip.  The L1500 and L3000 are in essence an N Class system
> card cut in half and therefore use the same I/O interface as the N.
> The GSP in the L Class resides in the PCI card cage with the GSP in the
> N Class is a seperate card attaching directly to the system card via the
> hot swap disk backplane.  The extra unknown system buses probably reside
> on the GSP of the N Class.  That would be my educated guess of what the
> unknown system buses are.  The N has two IKEs since it has both a left
> and a right PCI card cage attached directly to the system board.

According to the IO-ACD, these are actually the processors:

   Prelude W+ 540                        | NPROC  |  00004    91  |   5D3

A500/L1000/L2000 use Astro/Elroy just like the B/C/J class.  L1500/L3000/N
use Ike and Stretch in place of Astro.  I once downloaded an N-class PDF
which I've subsequently lost.  If I remember correctly, it looked like:

     CPU --+-- CPU          RAM          CPU --+-- CPU
          DEW              |||||              DEW
  +--------+--------+---- Stretch ----+--------+------+
 IKE               DEW               DEW             IKE
|||||         CPU --+-- CPU     CPU --+-- CPU       |||||
Ropes                                               Ropes

(Elroys on the end of the ropes, of course).

My understanding is that Stretch is the problem.  We don't follow the
rules for non-coherent aliases and Stretch isn't as lenient as other
memory controllers.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: RE: [parisc-linux] HP HSC J3516A (2 port) ethernet card  (supported??) ... And HP FC A3591 aka Mombasa GS
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Thanks, Matthew.  I will test with 2.6.0-test6-pa6 and share the
results.

Also, does anyone know which driver (if any) supports the follwing card
(HP Fibre Channel A3591).

The kernel reports them as :

2. Mombasa GS Add-on mass FC (A3591) (4) at 0xf1004000 [8/4], versions
0x18, 0x0, 0xa7
17. Mombasa GS Add-on mass FC (A3591) (4) at 0xf180c000 [10/12],
versions 0x18, 0x0, 0xa7

I have two R390's with two fibre channel cards each, all four cards are
connected to an FC-10.  My goal is to configure multiple paths to the
devices presented by the cards (via the multipathing personality in md).
I would then like to mirror the six 18GB drives I have (3 available, 3
for mirror, via md), and then stack LVM on top of the device(s) that md
makes available.

Multipath's would be configured like this :

/dev/sda and /dev/sdg -------- /dev/md0
/dev/sdb and /dev/sdh -------- /dev/md1
/dev/sdc and /dev/sdi -------- /dev/md2
/dev/sdd and /dev/sdj -------- /dev/md3
/dev/sde and /dev/sdk -------- /dev/md4
/dev/sdf and /dev/sdl -------- /dev/md5

Disks 1 and 2; 3 and 4; 5 and 6 would be mirrored (raid-1) :

/dev/md0 and /dev/md1 -------- /dev/md6
/dev/md2 and /dev/md3 -------- /dev/md7
/dev/md4 and /dev/md5 -------- /dev/md8

LVM on top of the mirrored disks :

/dev/md6 and /dev/md7 and /dev/md8 --- /dev/vg

Has anyone tried this before with success (assuming there are drivers
available that support my hardware)?

Thanks!

Pat Padgett

-----Original Message-----
From: Matthew Wilcox [mailto:willy@debian.org]=20
Sent: Thursday, October 02, 2003 10:47 AM
To: Padgett, Pat M [NTWK SVCS]
Subject: Re: [parisc-linux] HP HSC J3516A (2 port) ethernet card
(supported??)

On Thu, Oct 02, 2003 at 10:27:42AM -0500, Padgett, Pat M [NTWK SVCS]
wrote:
> I am trying to configure two HP J3516A's that I have in an R390.  They

> initially showed up while using the debian installation cd as eth0 and

> eth1 (the internal lan was eth2).  However, after reboot it seems that

> they are not being correctly initialized by the kernel (internal lan=20
> is now eth0).

I realise this probably isn't the answer you wanted to hear; but is
there any chance you could try 2.6 on this machine?  We just got GSC
Tulip cards working properly in 2.6 and it'd be really useful to know
that it works on your box too.  After we know that, we can try
backporting the changes to 2.4.


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On Thu, Oct 02, 2003 at 08:48:59PM -0500, Padgett, Pat M [NTWK SVCS] wrote:
> Also, does anyone know which driver (if any) supports the follwing card
> (HP Fibre Channel A3591).
> 
> The kernel reports them as :
> 
> 2. Mombasa GS Add-on mass FC (A3591) (4) at 0xf1004000 [8/4], versions
> 0x18, 0x0, 0xa7
> 17. Mombasa GS Add-on mass FC (A3591) (4) at 0xf180c000 [10/12],
> versions 0x18, 0x0, 0xa7

As far as I can tell, these are Tachyon cards with a GSC interface.
They aren't supported by any driver at the moment.  drivers/scsi/cpqfcTS*
would be the driver that needs to be altered.  Unfortunately, it's one
of the canonical examples of badly written drivers, and these cards
aren't exactly common, so I'm not aware of anyone trying to make these
cards work.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> I realise this probably isn't the answer you wanted to hear; but is there
> any chance you could try 2.6 on this machine?  We just got GSC Tulip
> cards working properly in 2.6 and it'd be really useful to know that it
> works on your box too.  After we know that, we can try backporting the
> changes to 2.4.

I have the 1 port ethernet card HP HSC J3515A in a D270
which gave similar errors under 2.4.20-pa35 and 2.4.22-pa7.
It works fine with the latest kernel vmlinux-2.6.0-test6-pa6-32.

Thanks for all the hard work,
John



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On Fri, Oct 03, 2003 at 08:15:03AM +0200, Joel Soete wrote:
> Derek, Matthew,
> 
> Thanks a lot for those clarification.
> As I try, without any success :(, to find where 'rules for non-coherent aliases'
> are not respected, I will waiting for a fix.

Well, it's hard.  Consider a page in the page cache.  It has a kernel
address and one-or-more user addresses.  The user addresses all follow the
coherency rules but the kernel address doesn't.  If you look in Appendix F,
we're not allowed to have multiple write-capable translations to the same
address.

I think the only way to solve this is by (ab)using kmap to ensure that
kernel pages are only accessed via coherent mappings.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Xref: news.gmane.org gmane.linux.ports.parisc:19719

You were right, i was missing the F0 partition, i repartitioned my hard drive
and now everything is up and running, thanks for your help.

On Thu, 02 Oct 2003 13:51:03 -0600, bame@hp.com wrote:

> 
> 
> I cc-ed parisc-linux@parisc-linux.org
> 
> > Hey everyone, i am having sobe trouble installing Debian hppa on a HP b1000
> > , i
> > have downloaded and burnen a netinstall ISO with kernelm 2.4.22 and got
> > everything up and running, i booted from CD, i installed everything, partit=
> > ioned
> > the hard drive, got the network configured and the base system installed but
> > when i try to make the system installable i get this error:
> > 
> > 
> > Problem
> > 
> > PALO wasn=B4t able to install. You can still remote boot and point the root=
> >  device
> > to the installed system.
> 
> The most likely cause of this is the palo (aka F0) partition is past
> the 2G mark on the disk or perhaps is too small or maybe there's no
> partition at all.
> 
> > I have no idea how to fix this, "remote boot and point the dive to the inst=
> > alled
> > system?????" WTF???, when i reboot the machi and tri to point the boot load=
> > er to
> > the hard drive i get nowhere, can anyone give me hand?
> 
> Boot from the CD interactively so you can edit the boot command line.
> Get rid of the initrd= argument entirely and change the root=/dev/ram
> to root=/dev/sdaX where X is your root partition, then boot.  This'll
> use the kernel from the CD instead of the one in the palo partition.
> 
> If this works, have a look at your partition table or post it here or
> re-run palo by hand and examine (or post) the error messages.
> 
> 	-P

Diego De Fuentes Ceballos
diego@defuentes.org


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] 2.6.0-test6-pa6 on b2k finaly crash
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Xref: news.gmane.org gmane.linux.ports.parisc:19720

Hi all,

First of all 2.6.0-test6-pa6 still run find on the b180 :) and led front
panel are flickering once more :)

I am also happy that with 2.6.0-test6-pa6 b2k crash because it is a long
time that I try to obtain a relevant info (even toc do not help until now).
And here is the full boot messages:

Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
palo_kernel=3/vmlinux-2.6.0-test6-pre6'
Selected kernel: /vmlinux-2.6.0-test6-pre6 from partition 3
ERROR: open /vmlinux-2.6.0-test6-pre6 from partition 3 failed
 palo_kernel=3/vmlinux-2.6.0-test6-pa6
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Memory: 255656k available
Calibrating delay loop... 799.53 BogoMIPS
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
POSIX conformance testing by UNIFIX
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000 [10], versions 0x582, 0x0, 0xb
2. Elroy PCI Bridge (13) at 0xfed30000 [10/0], versions 0x782, 0x0, 0xa
3. Elroy PCI Bridge (13) at 0xfed32000 [10/1], versions 0x782, 0x0, 0xa
4. Kazoo W+ (0) at 0xfffa0000 [32], versions 0x5d0, 0x0, 0x4
5. Memory (1) at 0xfed10200 [49], versions 0x9d, 0x0, 0x9
CPU(s): 1 x PA8600 (PCX-W+) at 400.000000 MHz
SBA found Astro 2.1 at 0xfed00000
lba version TR4.0 (0x5) found at 0xfed30000
PCI: Ignoring BAR0-3 of IDE controller 0000:00:0e.0
lba version TR4.0 (0x5) found at 0xfed32000
SCSI subsystem initialized
drivers/usb/core/usb.c: registered new driver hub
ikconfig 0.7 with /proc/config*
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
Soft power switch enabled, polling @ 0xf0400804.
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing enabled

Stack Dump:
 10068758:  10068758 00000204 0000000f 00000000 
 10068748:  10389f44 00000000 10389f44 000000d0 
 10068738:  1fff9ba0 000000d0 00000001 1013f724 
 10068728:  00000001 000000d0 3b9aca00 10389810 
 10068718:  10458810 10389f44 00000201 100683c0 
 10068708:  0000000d 00000000 00000000 000000d0 
 100686f8:  1fff9ba0 000000d0 00000001 101067fc 
 100686e8:  00000001 00000000 1038a810 10068548 
 100686d8:  1ffe3f00 10389f44 00000201 00000001 
 100686c8:  1038a280 1006f7b0 00000010 000000d0 
 100686b8:  1fff9b2c 000000d0 00000001 1013f880 
 100686a8:  00000001 00000000 0000000b 1fff9b2c 
 10068698:  1fe08060 1046d0c4 00000000 10068288 
 10068688:  00000013 00000060 1fff9b2c 000000d0 
 10068678:  1fff9b2c 000000d0 00000001 10142d2c 
 10068668:  00000001 000000d0 3b9aca00 10389810 
 10068658:  10458810 f0400004 f00008c4 00000000 
 10068648:  1ffea300 1ffe3f00 1fff8400 000000d0 
 10068638:  1fff9b2c 000000d0 00000001 1013fb48 
 10068628:  00000001 000000d0 3b9aca00 10389810 
 10068618:  10389f44 1fe08060 1fff9b2c 000000d0 
 10068608:  1fe08000 000000d0 00000001 1006f7b0 
 100685f8:  10459010 1047662c 00000027 1010b088 
 100685e8:  10390ac8 00000000 0000001b 1fffdc60 
 100685d8:  1fff9b38 1fff9b2c 1ffe3f00 068e7780 
 100685c8:  3f7d9b03 1fe0bbd4 00400048 000000d0 
 100685b8:  1fff9b2c 000000d0 00000001 1018c78c 
 100685a8:  00000001 00000000 1038a810 10068408 
 10068598:  1fff4a80 00000000 1a06836c 10240000 
 10068588:  b3202000 0000000f fffffff4 1006f7b0 
 10068578:  10459010 00000000 1006cb70 101e9310 
 10068568:  101e930c 00000000 00000000 00000000 
 10068558:  00000000 00000000 00000000 00000000 
 10068548:  00000000 00000000 00000000 55555555 
 10068538:  55555555 55555555 55555555 55555555 
 10068528:  55555555 55555555 55555555 55555555 
 10068518:  55555555 55555555 55555555 55555555 
 10068508:  55555555 55555555 55555555 55555555 
 100684f8:  55555555 55555555 55555555 55555555 
 100684e8:  55555555 55555555 55555555 55555555 
 100684d8:  55555555 55555555 55555555 55555555 
 100684c8:  55555555 55555555 55555555 55555555 
 100684b8:  55555555 55555555 55555555 55555555 
 100684a8:  55555555 55555555 55555555 55555555 
 10068498:  55555555 55555555 55555555 55555555 
 10068488:  55555555 55555555 55555555 55555555 
 10068478:  55555555 55555555 55555555 55555555 
 10068468:  55555555 00000000 00000000 00000000 
 10068458:  0000001f 00000000 0000001f 00000000 
 10068448:  0000001f 24850e06 04100800 10210928 
 10068438:  100683c0 068e7780 00000000 10372010 
 10068428:  00000000 00000000 00000000 00000000 
 10068418:  00000cb0 41000000 00000000 00009600 
 10068408:  f0000174 f000017c f00008c4 f0400004 
 100683f8:  10458810 10389810 3b9aca00 10458884 
 100683e8:  37e45480 00000000 00000027 10388810 
 100683d8:  00000013 10068288 00000000 1046d0c4 
 100683c8:  10215854 ffffffff 0004ff0f 000000d0 
 100683b8:  104768c8 000000d0 00000001 1018d3cc 
 100683a8:  00000001 000000d0 10355e84 1046d0c4 
 10068398:  103952b8 10068288 00000013 10388810 
 10068388:  00000027 00000000 37e45480 000000d0 
 10068378:  10476610 000000d0 00000001 10215904 
 10068368:  00000001 00400048 10068248 1fe0bc14 

Kernel addresses on the stack:
 [<10142d2c>] cache_init_objs+0xb8/0xc0
 [<10106220>] parisc_terminate+0x60/0xb8
 [<1013f724>] buffered_rmqueue+0xd8/0x164
 [<101067fc>] handle_interruption+0x584/0x5bc
 [<1013f880>] __alloc_pages+0xd0/0x374
 [<10142d2c>] cache_init_objs+0xb8/0xc0
 [<1013fb48>] __get_free_pages+0x24/0x78
 [<1010b088>] intr_check_sig+0x0/0xc
 [<1018c78c>] sysfs_new_inode+0x20/0xb0
 [<101e9310>] $$divU+0x10/0x210
 [<1018d3cc>] sysfs_create_dir+0x3c/0x80
 [<10215904>] serial8250_set_termios+0xa4/0x314
 [<101e56a8>] create_dir+0x4c/0x64
 [<103e5a7c>] uart_set_options+0xec/0x14c
 [<1021ba68>] driver_attach+0x70/0xa4
 [<103e5cd8>] serial8250_console_setup+0xa8/0xbc
 [<1021bcf8>] bus_add_driver+0xa0/0xa8
 [<10126388>] register_console+0x1b0/0x214
 [<1021c05c>] driver_register+0x48/0x54
 [<103e5d0c>] serial8250_console_init+0x20/0x30
 [<103e65fc>] serial8250_pci_init+0x38/0x68
 [<103d5438>] do_initcalls+0x58/0xdc
 [<10100440>] init+0x28/0xd4
 [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24


Unexpected interruption: Code=13 regs=100683c0 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 ffffffff 10215854 1046d0c4
r04-07  00000000 10068288 00000013 10388810
r08-11  00000027 00000000 37e45480 10458884
r12-15  3b9aca00 10389810 10458810 f0400004
r16-19  f00008c4 f000017c f0000174 00009600
r20-23  00000000 41000000 00000cb0 00000000
r24-27  00000000 00000000 00000000 10372010
r28-31  00000000 068e7780 100683c0 10210928
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101e930c 101e9310
 IIR: b3202000    ISR: 10240000  IOR: 1a06836c
 CPU:        0   CR30: 10068000 CR31: 103cb000
 ORIG_R28: 10459010
 IAOQ[0]: $$divU+0xc/0x210
 IAOQ[1]: $$divU+0x10/0x210
 RP(r2): serial8250_get_divisor+0x44/0x50

hth,
    joel

PS: kernel was build with 'make defconfig' configuration and gcc:
palinux:~# gcc --version
gcc (GCC) 3.3.2 20030908 (Debian prerelease)
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


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Subject: Re: [parisc-linux] 2.6.0-test6-pa6 on b2k finaly crash
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Xref: news.gmane.org gmane.linux.ports.parisc:19721

On Fri, 3 Oct 2003, Joel Soete wrote:

> I am also happy that with 2.6.0-test6-pa6 b2k crash because it is a long
> time that I try to obtain a relevant info (even toc do not help until now).

You mean to be able to track down the serial console bug?

> And here is the full boot messages:

[removed dmesg output]

Similar to my output.

> PS: kernel was build with 'make defconfig' configuration and gcc:
> palinux:~# gcc --version
> gcc (GCC) 3.3.2 20030908 (Debian prerelease)

Same here.

I was wondering whether it was just me (wrong config) or the 2.6 wasn't
working on C3k in general. Then I read on the mailing lists archive that
the serial console is not working for the C3k.

For that reason I was never able to test/run a 2.5/2.6 kernel, since
I don't have a STIcon (no graphics card).
Well, I think you can just compile no console at all and it will use a
dummy console AFAIK, but never tried that (not brave enough). Would you
be able to run 2.6 in that case?

Thanks
  Max


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Xref: news.gmane.org gmane.linux.ports.parisc:19722

>> I am also happy that with 2.6.0-test6-pa6 b2k crash because it is a long
>> time that I try to obtain a relevant info (even toc do not help until
now).
>
>You mean to be able to track down the serial console bug?
>
>> And here is the full boot messages:
[snip]
>For that reason I was never able to test/run a 2.5/2.6 kernel, since
>I don't have a STIcon (no graphics card).

I don't have more on my b2k :(

>Well, I think you can just compile no console at all 
Yes I do it (a bit by accident) and so very surprise that I could connect
it via ssh or even telnet
> and it will use a dummy console AFAIK, but never tried that (not brave

> enough). Would you be able to run 2.6 in that case?

No yet try neither dummy console nor lan console (for this last i would like
to find back the soft to be installed on another server but i do not yet
find enough time :( )

Regards,
    Joel

Thanks

> Max



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>> I am also happy that with 2.6.0-test6-pa6 b2k crash because it is a long
>> time that I try to obtain a relevant info (even toc do not help until
now).
>
>You mean to be able to track down the serial console bug?
>
>> And here is the full boot messages:
[snip]
>For that reason I was never able to test/run a 2.5/2.6 kernel, since
>I don't have a STIcon (no graphics card).

I don't have more on my b2k :(

>Well, I think you can just compile no console at all 
Yes I do it (a bit by accident) and so very surprise that I could connect
it via ssh or even telnet
> and it will use a dummy console AFAIK, but never tried that (not brave

> enough). Would you be able to run 2.6 in that case?

No yet try neither dummy console nor lan console (for this last i would like
to find back the soft to be installed on another server but i do not yet
find enough time :( )

Regards,
    Joel

Thanks

> Max



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Subject: [parisc-linux] traps.c 2.4 alignement [was: 2.6.0-test6-pa6 on b2k finaly crash]
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Joel Soete wrote:

>I am also happy that with 2.6.0-test6-pa6 b2k crash because it is a long
>time that I try to obtain a relevant info (even toc do not help until now).
>And here is the full boot messages:
>  
>
[...]

>
>Unexpected interruption: Code=13 regs=100683c0 (Addr=00000000)
>
>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>PSW: 00000000000001001111111100001111 Not tainted
>r00-03  00000000 ffffffff 10215854 1046d0c4
>r04-07  00000000 10068288 00000013 10388810
>r08-11  00000027 00000000 37e45480 10458884
>r12-15  3b9aca00 10389810 10458810 f0400004
>r16-19  f00008c4 f000017c f0000174 00009600
>r20-23  00000000 41000000 00000cb0 00000000
>r24-27  00000000 00000000 00000000 10372010
>r28-31  00000000 068e7780 100683c0 10210928
>sr0-3   00000000 00000000 00000000 00000000
>sr4-7   00000000 00000000 00000000 00000000
>
>IASQ: 00000000 00000000 IAOQ: 101e930c 101e9310
> IIR: b3202000    ISR: 10240000  IOR: 1a06836c
> CPU:        0   CR30: 10068000 CR31: 103cb000
> ORIG_R28: 10459010
> IAOQ[0]: $$divU+0xc/0x210
> IAOQ[1]: $$divU+0x10/0x210
> RP(r2): serial8250_get_divisor+0x44/0x50
>
>  
>
Hi Carlos and all,

Regarding a bit more about this crash dump, I figure out that your patch 
<http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017565.html> 
was not yet 'aligned' in 2.6.
So may I suggest you this first draft:
--- linux-2.6.0-test6-pa6.orig/arch/parisc/kernel/traps.c       
2003-10-05 16:03:42.000000000 +0200
+++ linux-2.6.0-test6-pa6.test/arch/parisc/kernel/traps.c       
2003-10-05 16:05:24.000000000 +0200
@@ -44,7 +44,7 @@
 #define PRINT_USER_FAULTS /* (turn this on if you want user faults to be */
                          /*  dumped to the console via printk)          */

-int printbinary(char *buf, unsigned long x, int nbits)
+static int printbinary(char *buf, unsigned long x, int nbits)
 {
        unsigned long mask = 1UL << (nbits - 1);
        while (mask != 0) {
@@ -408,7 +408,7 @@


 /*
- * This routine handles page faults.  It determines the address,
+ * This routine handles various exception codes.  It determines the 
address,
  * and the problem, and then passes it off to one of the appropriate
  * routines.
  */
@@ -429,8 +429,18 @@
        if (!console_drivers)
                pdc_console_restart();

-       if (code == 1)
-           transfer_pim_to_trap_frame(regs);
+
+       /* Not all switch paths will gutter the processor... */
+       switch(code){
+
+       case 1:
+               transfer_pim_to_trap_frame(regs);
+               break;
+
+       default:
+               /* Fall through */
+               break;
+       }

        show_stack(NULL, (unsigned long *)regs->gr[30]);

@@ -446,34 +456,28 @@
         * system will shut down immediately right here. */
        pdc_soft_power_button(0);

+       /* Gutter the processor... */
        for(;;)
            ;
 }

+
 void handle_interruption(int code, struct pt_regs *regs)
 {
        unsigned long fault_address = 0;
        unsigned long fault_space = 0;
        struct siginfo si;

-       if (code == 1)
-           pdc_console_restart();  /* switch back to pdc if HPMC */
-       else
-           local_irq_enable();
-
-#if 0
-       printk(KERN_CRIT "Interruption # %d\n", code);
-#endif
-
        switch(code) {

        case  1:
                /* High-priority machine check (HPMC) */
-
+               pdc_console_restart();  /* switch back to pdc if HPMC */
+
                /* set up a new led state on systems shipped with a LED 
State panel */
                pdc_chassis_send_status(PDC_CHASSIS_DIRECT_HPMC);
-
-               parisc_terminate("High Priority Machine Check (HPMC)",
+
+               parisc_terminate("High Priority Machine Check (HPMC)",
                                regs, code, 0);
                /* NOT REACHED */
              
@@ -492,8 +496,9 @@
 
        case  5:
                /* Low-priority machine check */
+
                pdc_chassis_send_status(PDC_CHASSIS_DIRECT_LPMC);
-               
+
                flush_all_caches();
                cpu_lpmc(5, regs);
                return;
@@ -542,6 +547,7 @@
 
                die_if_kernel("Privileged register usage", regs, code);
                si.si_code = ILL_PRVREG;
+               /* Fall thru */
        give_sigill:
                si.si_signo = SIGILL;
                si.si_errno = 0;
@@ -556,6 +562,17 @@
                si.si_addr = (void *) regs->iaoq[0];
                force_sig_info(SIGFPE, &si, current);
                return;
+
+       case 13:
+               /* Conditional Trap
+                  The condition succees in an instruction which traps 
on condition  */
+               si.si_signo = SIGFPE;
+               /* Set to zero, and let the userspace app figure it out from
+                  the insn pointed to by si_addr */
+               si.si_code = 0;
+               si.si_addr = (void *) regs->iaoq[0];
+               force_sig_info(SIGFPE, &si, current);
+               return;

        case 14:
                /* Assist Exception Trap, i.e. floating point exception. */
@@ -563,13 +580,22 @@
                handle_fpe(regs);
                return;

+       case 15:
+               /* Data TLB miss fault/Data page fault */
+               /* Fall thru */
+       case 16:
+               /* Non-access instruction TLB miss fault */
+               /* The instruction TLB entry needed for the target 
address of the FIC
+                  is absent, and hardware can't find it, so we get to 
cleanup */
+               /* Fall thru */
        case 17:
                /* Non-access data TLB miss fault/Non-access data page 
fault */
                /* TODO: Still need to add slow path emulation code here */
-               pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
-
+               /* TODO: Understand what is meant by the TODO listed
+                  above this one. (Carlos) */
                fault_address = regs->ior;
-               parisc_terminate("Non access data tlb 
fault!",regs,code,fault_address);
+               fault_space = regs->isr;
+               break;
 
        case 18:
                /* PCXS only -- later cpu's split this into types 26,27 
& 28 */
@@ -579,9 +605,8 @@
                        return;
                }
                /* Fall Through */
-
-       case 15: /* Data TLB miss fault/Data page fault */
-       case 26: /* PCXL: Data memory access rights trap */
+       case 26:
+               /* PCXL: Data memory access rights trap */
                fault_address = regs->ior;
                fault_space   = regs->isr;
                break;
@@ -637,7 +662,6 @@
                        up_read(&current->mm->mmap_sem);
                }
                /* Fall Through */
-
        case 27:
                /* Data memory protection ID trap */
                die_if_kernel("Protection id trap", regs, code);
@@ -671,8 +695,9 @@
                        force_sig_info(SIGBUS, &si, current);
                        return;
                }
-               pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
 
+               pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
+
                parisc_terminate("Unexpected interruption", regs, code, 0);
                /* NOT REACHED */
        }
@@ -702,18 +727,19 @@
             * The kernel should never fault on its own address space.
             */

-           if (fault_space == 0)
-           {
+           if (fault_space == 0) {
                pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
                parisc_terminate("Kernel Fault", regs, code, fault_address);
-
+               /** NOT REACHED **/
            }
        }

+       local_irq_enable();
        do_page_fault(regs, code, fault_address);
 }


+
 int __init check_ivt(void *iva)
 {
        int i;

hmm I am not quiet sure about first hunck (static or not for printbinary?).

I test it successfully on my c110 but if you have some opportunity to 
double check and may be also ci, that would be nice.

Thanks in advance,
    Joel

PS: I do not yet test on my b2k :( so I don't know yet if it help the 
above pb?

PS2: Max may be have this opportunity on your c3k? (thanks)

--------------030403020700060302040201
Content-Type: text/plain;
 name="Traps-2.4-Align"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="Traps-2.4-Align"

--- linux-2.6.0-test6-pa6.orig/arch/parisc/kernel/traps.c	2003-10-05 16:03:42.000000000 +0200
+++ linux-2.6.0-test6-pa6.test/arch/parisc/kernel/traps.c	2003-10-05 16:05:24.000000000 +0200
@@ -44,7 +44,7 @@
 #define PRINT_USER_FAULTS /* (turn this on if you want user faults to be */
 			  /*  dumped to the console via printk)          */
 
-int printbinary(char *buf, unsigned long x, int nbits)
+static int printbinary(char *buf, unsigned long x, int nbits)
 {
 	unsigned long mask = 1UL << (nbits - 1);
 	while (mask != 0) {
@@ -408,7 +408,7 @@
 
 
 /*
- * This routine handles page faults.  It determines the address,
+ * This routine handles various exception codes.  It determines the address,
  * and the problem, and then passes it off to one of the appropriate
  * routines.
  */
@@ -429,8 +429,18 @@
 	if (!console_drivers)
 		pdc_console_restart();
 
-	if (code == 1)
-	    transfer_pim_to_trap_frame(regs);
+
+	/* Not all switch paths will gutter the processor... */
+	switch(code){
+
+	case 1:
+		transfer_pim_to_trap_frame(regs);
+		break;
+	    
+	default:
+		/* Fall through */
+		break;
+	}
 
 	show_stack(NULL, (unsigned long *)regs->gr[30]);
 
@@ -446,34 +456,28 @@
 	 * system will shut down immediately right here. */
 	pdc_soft_power_button(0);
 	
+	/* Gutter the processor... */
 	for(;;)
 	    ;
 }
 
+
 void handle_interruption(int code, struct pt_regs *regs)
 {
 	unsigned long fault_address = 0;
 	unsigned long fault_space = 0;
 	struct siginfo si;
 
-	if (code == 1)
-	    pdc_console_restart();  /* switch back to pdc if HPMC */
-	else
-	    local_irq_enable();
-
-#if 0
-	printk(KERN_CRIT "Interruption # %d\n", code);
-#endif
-
 	switch(code) {
 
 	case  1:
 		/* High-priority machine check (HPMC) */
-		
+		pdc_console_restart();  /* switch back to pdc if HPMC */
+
 		/* set up a new led state on systems shipped with a LED State panel */
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_HPMC);
-		    
-	    	parisc_terminate("High Priority Machine Check (HPMC)",
+
+		parisc_terminate("High Priority Machine Check (HPMC)",
 				regs, code, 0);
 		/* NOT REACHED */
 		
@@ -492,8 +496,9 @@
 
 	case  5:
 		/* Low-priority machine check */
+
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_LPMC);
-		
+
 		flush_all_caches();
 		cpu_lpmc(5, regs);
 		return;
@@ -542,6 +547,7 @@
 
 		die_if_kernel("Privileged register usage", regs, code);
 		si.si_code = ILL_PRVREG;
+		/* Fall thru */
 	give_sigill:
 		si.si_signo = SIGILL;
 		si.si_errno = 0;
@@ -556,6 +562,17 @@
 		si.si_addr = (void *) regs->iaoq[0];
 		force_sig_info(SIGFPE, &si, current);
 		return;
+	
+	case 13:
+		/* Conditional Trap 
+		   The condition succees in an instruction which traps on condition  */
+		si.si_signo = SIGFPE;
+		/* Set to zero, and let the userspace app figure it out from
+		   the insn pointed to by si_addr */
+		si.si_code = 0;
+		si.si_addr = (void *) regs->iaoq[0];
+		force_sig_info(SIGFPE, &si, current);
+		return;
 
 	case 14:
 		/* Assist Exception Trap, i.e. floating point exception. */
@@ -563,13 +580,22 @@
 		handle_fpe(regs);
 		return;
 
+	case 15: 
+		/* Data TLB miss fault/Data page fault */	
+		/* Fall thru */
+	case 16:
+		/* Non-access instruction TLB miss fault */
+		/* The instruction TLB entry needed for the target address of the FIC
+		   is absent, and hardware can't find it, so we get to cleanup */
+		/* Fall thru */
 	case 17:
 		/* Non-access data TLB miss fault/Non-access data page fault */
 		/* TODO: Still need to add slow path emulation code here */
-		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
-		
+		/* TODO: Understand what is meant by the TODO listed 
+		   above this one. (Carlos) */
 		fault_address = regs->ior;
-		parisc_terminate("Non access data tlb fault!",regs,code,fault_address);
+		fault_space = regs->isr;
+		break;
 
 	case 18:
 		/* PCXS only -- later cpu's split this into types 26,27 & 28 */
@@ -579,9 +605,8 @@
 			return;
 		}
 		/* Fall Through */
-
-	case 15: /* Data TLB miss fault/Data page fault */
-	case 26: /* PCXL: Data memory access rights trap */
+	case 26: 
+		/* PCXL: Data memory access rights trap */
 		fault_address = regs->ior;
 		fault_space   = regs->isr;
 		break;
@@ -637,7 +662,6 @@
 			up_read(&current->mm->mmap_sem);
 		}
 		/* Fall Through */
-
 	case 27: 
 		/* Data memory protection ID trap */
 		die_if_kernel("Protection id trap", regs, code);
@@ -671,8 +695,9 @@
 			force_sig_info(SIGBUS, &si, current);
 			return;
 		}
-		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
 		
+		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
+
 		parisc_terminate("Unexpected interruption", regs, code, 0);
 		/* NOT REACHED */
 	}
@@ -702,18 +727,19 @@
 	     * The kernel should never fault on its own address space.
 	     */
 
-	    if (fault_space == 0) 
-	    {
+	    if (fault_space == 0) {
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
 		parisc_terminate("Kernel Fault", regs, code, fault_address);
-	
+		/** NOT REACHED **/
 	    }
 	}
 
+	local_irq_enable();
 	do_page_fault(regs, code, fault_address);
 }
 
 
+
 int __init check_ivt(void *iva)
 {
 	int i;

--------------030403020700060302040201--



From - Thu Nov 08 21:29:28 2018
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] sched_clock implementation
Date: Sun, 05 Oct 2003 15:43:16 +0000
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Cc: Carlos O'Donell <carlos@baldric.uwo.ca>,
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Grant Grundler wrote:

>On Sat, Sep 20, 2003 at 06:02:10PM +0000, Joel Soete wrote:
>  
>
>>a quick look into paxx.pdf which about CR16 speak of "peak instruction 
>>rate" but do not define anywhere?
>>I presume that is the cpu clock but would like somebody confirm.
>>    
>>
>
>Read about "Interval Timer" (cr16) in the PA 2.0 Arch book.
>PDC provides the exact rate that CR16 is changing.
>Looks like PDC_TOD_ITIMER is the call but I'm not sure offhand.
>In any case, I've only seen it used as CPU cycle counter.
>(ie 1:1 with CPU clock).
>
>hth,
>grant
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>  
>
Much more for remind, here is a proposed implementation of a pdc_tod_itimer:
diff -Naur linux-2.6.0-test6-pa6.orig/arch/parisc/kernel/firmware.c 
linux-2.6.0-test6-pa6.test/arch/parisc/kernel/firmware.c
--- linux-2.6.0-test6-pa6.orig/arch/parisc/kernel/firmware.c    
2003-10-05 17:14:13.000000000 +0200
+++ linux-2.6.0-test6-pa6.test/arch/parisc/kernel/firmware.c    
2003-10-05 17:09:14.000000000 +0200
@@ -682,6 +682,26 @@
 }
 EXPORT_SYMBOL(pdc_tod_set);

+/**
+ * pdc_tod_Calibrate_timers - Read "Calibrate timers" data
+ * @tod_calib: The return buffer:
+ *
+ * Calibrate the Interval Timer (CR16).
+ */
+int pdc_tod_itimer(struct pdc_tod_calib *tod_calib)
+{
+        int retval;
+
+        spin_lock_irq(&pdc_lock);
+        retval = mem_pdc_call(PDC_TOD, PDC_TOD_ITIMER, 
__pa(pdc_result), 0);
+        convert_to_wide(pdc_result);
+        memcpy(tod_calib, pdc_result, sizeof(tod_calib));
+        spin_unlock_irq(&pdc_lock);
+
+        return retval;
+}
+EXPORT_SYMBOL(pdc_tod_itimer);
+
 #ifdef __LP64__
 int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr,
                struct pdc_memory_table *tbl, unsigned long entries)
diff -Naur linux-2.6.0-test6-pa6.orig/include/asm-parisc/pdc.h 
linux-2.6.0-test6-pa6.test/include/asm-parisc/pdc.h
--- linux-2.6.0-test6-pa6.orig/include/asm-parisc/pdc.h 2003-10-05 
17:15:09.000000000 +0200
+++ linux-2.6.0-test6-pa6.test/include/asm-parisc/pdc.h 2003-10-05 
17:11:26.000000000 +0200
@@ -670,6 +670,13 @@
        unsigned long tod_usec;
 };

+struct pdc_tod_calib {
+       unsigned long calib_0;
+       unsigned long calib_1;
+       unsigned long TOD_acc;
+       unsigned long CR_acc;
+};
+
 #ifdef __LP64__
 struct pdc_pat_cell_num {
        unsigned long cell_num;
@@ -943,6 +950,7 @@
 int pdc_get_initiator(struct hardware_path *hwpath, unsigned char 
*scsi_id, unsigned long *period, char *width, char *mode);
 int pdc_tod_read(struct pdc_tod *tod);
 int pdc_tod_set(unsigned long sec, unsigned long usec);
+int pdc_tod_itimer(struct pdc_tod_calib *tod_calib);

 #ifdef __LP64__
 int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr,

Well I don't know yet if it would help for a better sched_clock() because:
a) I already found some get_jiffies_64() which seems to be a good candidate?

b) I don't yet find how jiffies and jiffies_64 are continuously updated. 
I presume that we take advantage of an 'external interupt request' by 
CR16 (interval timer) but don't reach to find neither where this one is 
initialised (just to determine if get_jiffies_64 is enough (theoriticaly 
1/100s ?) or request more) nor where it is updated?

Thanks in advance for comments and idea,
    Joel

PS:
I added some test on my c110 and got some:
Oct  5 15:57:51 hpalin kernel: Calib_0 =  0x405e0000
Oct  5 15:57:51 hpalin kernel: Calib_1 =  0x00000000
Oct  5 15:57:51 hpalin kernel: TOD_acc =  0x00000000
Oct  5 15:57:51 hpalin kernel: CR_acc  =  0x00000000

merging Calib_1, Calib_0 in a union retrun me a frequency of 120Mhz 
(exactly) when "Oct  5 15:57:51 hpalin kernel: Calibrating delay loop... 
119.60 BogoMIPS" (but printk don't print float :( )

but it is curious that TOD_acc and CR_acc are 0 any idea?




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Joel Soete wrote:

> I test it successfully on my c110 but if you have some opportunity to 
> double check and may be also ci, that would be nice.

hmm don't think if it's related but just in case:
I was just copying my kernel tree with 'tar cslpf - 
linux-2.6.0-test6-pa6 | ( cd Work ; tar xslpf -)' when

Kernel panic: drivers/parisc/ccio-dma.c: ccio_alloc_range() I/O M.
In interrupt handler - not syncing

?

I just retry same operation on the same system with same kernel but 
doesn't occurs a second time?

Thanks in advance,
    Joel




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On Sun, 5 Oct 2003, Joel Soete wrote:

> Joel Soete wrote:
>
> > I test it successfully on my c110 but if you have some opportunity to
> > double check and may be also ci, that would be nice.

I've compiled 2.6.0-test6-pa6 with your patches, but I can't reboot
the machine into 2.6 right now since it's being used by my housemates ;)

> hmm don't think if it's related but just in case:
> I was just copying my kernel tree with 'tar cslpf -
> linux-2.6.0-test6-pa6 | ( cd Work ; tar xslpf -)' when
>
> Kernel panic: drivers/parisc/ccio-dma.c: ccio_alloc_range() I/O M.
> In interrupt handler - not syncing
>
> ?
>
> I just retry same operation on the same system with same kernel but
> doesn't occurs a second time?

When I have the opportunity I'll fire up 2.6 (with you patches) and test
it with high I/O load (if it even boots up).

I'll let you know whether I can boot with serial console enabled and
whether I also have the same kernel panic when doing heavy I/O.


greetings,
  Max




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Hello !

I would like to offer 4 HP9000 servers to the developers of Parisc linux 
port.
Free of charge.
Here are the specifications:
HP9000 800/H40
HP9000 800/H40
HP9000 800/H30
HP9000 867S

Servers are fully functional with HP-UX on them. They come together with 
monitors and keyboards.
Becouse of the server dimensions 48x44x52cm the equipment is only available 
for self pick up.
Location : Slovenia

If you are interested, please contact me directly on my email.

_________________________________________________________________
The new MSN 8: smart spam protection and 2 months FREE*  
http://join.msn.com/?page=features/junkmail



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Cc: Grant Grundler <grundler@parisc-linux.org>,
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To: Joel Soete <soete.joel@tiscali.be>
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On Sun, Oct 05, 2003 at 03:43:16PM +0000, Joel Soete wrote:
> +        spin_lock_irq(&pdc_lock);
> +        retval = mem_pdc_call(PDC_TOD, PDC_TOD_ITIMER, 
> __pa(pdc_result), 0);
> +        convert_to_wide(pdc_result);

Your mailer is folding lines.

Aside from that the patch looks interesting. It could be used to find
the rate at which cr16 is running, and then we can use that as an HP
timer into userspace. The next portion is solving the monotic
requirement on the clock (e.g. follow the idea of 3 cr16 reads to catch
a reschedule).

c.



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On Fri, Oct 03, 2003 at 01:18:10AM +0100, Matthew Wilcox wrote:
> I once downloaded an N-class PDF which I've subsequently lost.
> If I remember correctly, it looked like:
> 
>      CPU --+-- CPU          RAM          CPU --+-- CPU
>           DEW              |||||              DEW
>   +--------+--------+---- Stretch ----+--------+------+
>  IKE               DEW               DEW             IKE
> |||||         CPU --+-- CPU     CPU --+-- CPU       |||||
> Ropes                                               Ropes
> 
> (Elroys on the end of the ropes, of course).

I thought Ike was hanging off of "Stretch" like this:
   CPU --+-- CPU              RAM             CPU --+-- CPU
        DEW                  |||||                 DEW
         +----------------- Stretch ----------------+
        DEW                  |   |                 DEW
   CPU --+-- CPU           IKE   IKE          CPU --+-- CPU
                       ||...||   ||...||
                      12 ropes   12 ropes

DEW == Runway to Merced bus converter
IKe == I/O Controller (DMA Coherency and IO MMU)

10 PCI slots are "Twin Turbo" (Double Rope) and two are "Turbo" (singl
rope). "Core I/O" gets the remaining two ropes.


However, the original N-class has been replaced with rp7410.
Not sure if when the switchover took place.
rp7410 is now kin to Superdome (HalfDome) and rp8400 (QuarterDome)
and is based on a follow-on chipset.
URL's here:
http://www.hp.com/products1/servers/mid_range/index.html
http://www.hp.com/products1/servers/rackoptimized/rp7410/infolibrary/rp7410_wp.pdf

grant

ps. We are completely under representing the complexity of "RAM" and all
the memory controllers that made this such a hot box 4 years ago.


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Subject: Re: [parisc-linux] traps.c 2.4 alignement [was: 2.6.0-test6-pa6 on b2k finaly crash]
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On Sun, Oct 05, 2003 at 03:06:48PM +0000, Joel Soete wrote:
> Hi Carlos and all,
> 
> Regarding a bit more about this crash dump, I figure out that your patch 
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017565.html> 
> was not yet 'aligned' in 2.6.
> So may I suggest you this first draft:

The draft looks good. I'll merge it into 2.6 today and test on my
system.

c.


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Subject: RE: [parisc-linux]  HP FC A3591 aka Mombasa GS -- or A6684A?
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Good morning,

Does anyone know if the replacement for the A3591B is supported?

The replacement card is the A6684A HSC Tachlite card.

Thanks!

Pat Padgett

-----Original Message-----
From: Matthew Wilcox [mailto:willy@debian.org]=20
Sent: Thursday, October 02, 2003 9:08 PM
To: Padgett, Pat M [NTWK SVCS]
Cc: Matthew Wilcox; parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] HP HSC J3516A (2 port) ethernet card
(supported??) ... And HP FC A3591 aka Mombasa GS


On Thu, Oct 02, 2003 at 08:48:59PM -0500, Padgett, Pat M [NTWK SVCS]
wrote:
> Also, does anyone know which driver (if any) supports the follwing=20
> card (HP Fibre Channel A3591).
>=20
> The kernel reports them as :
>=20
> 2. Mombasa GS Add-on mass FC (A3591) (4) at 0xf1004000 [8/4], versions

> 0x18, 0x0, 0xa7 17. Mombasa GS Add-on mass FC (A3591) (4) at=20
> 0xf180c000 [10/12], versions 0x18, 0x0, 0xa7

As far as I can tell, these are Tachyon cards with a GSC interface. They
aren't supported by any driver at the moment.  drivers/scsi/cpqfcTS*
would be the driver that needs to be altered.  Unfortunately, it's one
of the canonical examples of badly written drivers, and these cards
aren't exactly common, so I'm not aware of anyone trying to make these
cards work.

--=20
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead
bodies. Do you think I want to have an academic debate on this subject?"
-- Robert Fisk


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Subject: Re: [parisc-linux]  HP FC A3591 aka Mombasa GS -- or A6684A?
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On Mon, Oct 06, 2003 at 09:38:42AM -0500, Padgett, Pat M [NTWK SVCS] wrote:
> Good morning,
> 
> Does anyone know if the replacement for the A3591B is supported?
> 
> The replacement card is the A6684A HSC Tachlite card.

I think this is much more likely to work ... do you happen to know whether
it's a native GSC card or whether it has a Dino bridge on it?  Dino is
a biggish HP chip labelled 1FC3-0004, probably close to the GSC connector.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Marc Dilasser <marc.dilasser@free.fr>
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Subject: [parisc-linux] Xfree on a B180L
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Hello,

HP B180L with a 21" Sun monitor, Debian 3.0 r1.
Xfree runs but the colors are very yellow; harware problems or something =
in=20
the XFConfig-4 ?

Marc


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On Monday, Oct 6, 2003, at 11:23 US/Eastern, Marc Dilasser wrote:

> HP B180L with a 21" Sun monitor, Debian 3.0 r1.
> Xfree runs but the colors are very yellow; harware problems or 
> something in
> the XFConfig-4 ?
>

Marc,

Here are a couple of possibilities that I can think of:

1/ The video timing is set to use sync-on-green (s-o-g). Does the 
monitor support it? What type of cable are you using? How does it 
connect to the monitor? Does it have HD-15 plug or 3/5-BNC connectors? 
Interrupt the boot and type "co mo" at the prompt. What timing is 
selected? If it does not list a "VESA" timing, then it is set to s-o-g. 
If you are using s-o-g and you have a 5-BNC cable, disconnect the H & V 
lines. Otherwise, try one of the VESA entries.

2/ You've selected to run in depth 8 TrueColor. If this is the case, 
then it will be normal due to the uneven distribution of RGB (332). 
Check the "xwininfo -root" output or look in XF86Config.

-chuck



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On Mon, 2003-10-06 17:23:39 +0200, Marc Dilasser <marc.dilasser@free.fr>
wrote in message <200310061723.40002.marc.dilasser@free.fr>:
> Hello,
>=20
> HP B180L with a 21" Sun monitor, Debian 3.0 r1.
> Xfree runs but the colors are very yellow; harware problems or something =
in=20
> the XFConfig-4 ?

Have you tried the 'Visual "TrueColor"' config option?

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
   ret =3D do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TC=
PA));

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Subject: Re: [parisc-linux] traps.c 2.4 alignement [was: 2.6.0-test6-pa6 on b2k finaly crash]
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>>
>>On Sun, Oct 05, 2003 at 03:06:48PM +0000, Joel Soete wrote:
>> Hi Carlos and all,
>> 
>> Regarding a bit more about this crash dump, I figure out that your patch

>> ><http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017565.html>

> 
>>as not yet 'aligned' in 2.6.
>> So may I suggest you this first draft:
>
>The draft looks good. I'll merge it into 2.6 today and test on my
>system.

Finaly it works on my c110 and also on a b180l :)

But, as we could awaiting when such code=13 (conditional trap iirc), occurs
in kernel mode (as on my b2k or Max's c3k) the kernel hang without advise
:(

Thanks for your attention,
    Joel


-------------------------------------------------------------------------
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pendant 3 mois! http://reg.tiscali.be/default.asp?lg=fr 




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On Sun, Oct 05, 2003 at 05:07:21PM +0000, Joel Soete wrote:
> hmm don't think if it's related but just in case:
> I was just copying my kernel tree with 'tar cslpf - 
> linux-2.6.0-test6-pa6 | ( cd Work ; tar xslpf -)' when
> 
> Kernel panic: drivers/parisc/ccio-dma.c: ccio_alloc_range() I/O M.

You ran out of mapping resources.
        panic(__FILE__ ": %s() I/O MMU is out of mapping resources.\n",
	              __FUNCTION__);

> I just retry same operation on the same system with same kernel but 
> doesn't occurs a second time?

Not surprising. The bitmap search will fail if everything gets
mapped "sparsely" or we try to search for a large mapping (>32K, ie more
than 8 pages) but can't find it. If this is repeatible problem, change

	/* Ratio of Host MEM to IOV Space size */
	static unsigned long ccio_mem_ratio = 4;

in drivers/parisc/ccio-dma.c (2.6 kernel) to 2.

One patch would be welcome here: figure out a threshold when
allocations for single pages should share an 8-page "chunk"
(effectively one TLB entry).  E.g. differentiate between LAN
and SCSI requests.  LAN typically wants 1 entry (1500 byte MTU)
unless someone starts testing "Large Send" and is very "linear"
in it's DMA behavior (one DMA stream at a time).  SCSI typically
wants 64k/128k (16 or 32 entries), has lots of those, and any one
of those could be the "next" DMA stream. ie thrashing the IO TLB
is much more likely with SCSI than LAN and we should allocate
entries differently based on that.

The patch might be something like:
	if ((pci_dev->class & MASK) == PCI_BASE_CLASS_NETWORK) {
	...

in the right places to use a different (and new?) search loop.

grant


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On Mon, Oct 06, 2003 at 05:22:15PM +0200, Joel Soete wrote:
> >>
> >>On Sun, Oct 05, 2003 at 03:43:16PM +0000, Joel Soete wrote:
> >> +        spin_lock_irq(&pdc_lock);
> >> +        retval = mem_pdc_call(PDC_TOD, PDC_TOD_ITIMER, 
> >> __pa(pdc_result), 0);
> >> +        convert_to_wide(pdc_result);
> >
> >Your mailer is folding lines.
> 
> hmm mozilla? i think much more an error in cup and paste between a xterm
> and mozilla: my bad sorry (i just forgot to attach the file)
> 
> >Aside from that the patch looks interesting.
> 
> Thanks :)
> 
> >It could be used to find
> >the rate at which cr16 is running, and then we can use that as an HP
> >timer into userspace.
> 
> Yes, still have to find out how cr16 is init (mtctl(16,...) i presume but
> which  value?) and also I still have to see how to use data in userspace?

The issue is that cr16 is going to overrun at some point. We need to
track the overrun to track an accurate tick count. If we used another
32-bit quantity to tick on every cr16 overrun then we'd get overrun 
for this value in the range of ~800 years.

Pseudo 64-bit clock:

cr16 tick tick tick ... 2^32, 0, 1, 2 ...
crOV 0 ................ 0,    1, ........

So we add code to the jiffie update to see if cr16 has overrun, if it
has we update the overrun counter. You can then use the current cr16,
the overrun counter, and the bootup cr16 to calculate time accurate to
your CPU's MHz. On my 650MHz box that's somewhere near the 2 ns mark.

We need a way to calculate a difference between two times:

NOTES: No locks needed since I'm not updating anything, just reading.

==== Kernel view ====
Kernel Light weight syscall: get_current_diff(old_cr16, old_overrun,
                                              &delta_cr16, &delta_overrun)
input:
	old_cr16
	old_overrun

- Disable interrupts
- Get CPU #
 - Get Bootup cr16 for cpu (boot_cr16)

 /* Comprise a pseudo-64 bit clock */
 - Get Overrun cr16 for cpu (overrun_cr16)
 - Get Current cr16 for cpu (current_cr16)

 /* Does normalization go away if we can accurately sync all the
    cpu cr16's at bootup? Re: Grant's discussion about loop and
    sync */

 /* Normalize based on boot_cr16 (And drift?) */
 if ( boot_cr16 > current_cr16 ){
    new_overrun = overrun_cr16 - 1;
    new_cr16 = (2<<32) - (boot_cr16 - current_cr16); 
 } else {
    new_overrun = overrun_cr16;
    new_cr16 = current_cr16 - boot_cr16;
 }

 /* overrun offset (~800 year period on 650MHz with 32-bit clock) */
 if( new_overrun > old_overrun ){
   /* First overrun is calculated by -ve delta_cr16, so -1 */
   delta_overrun = new_overrun - old_overrun - 1;
 }

 /* cr16 underflow? (~6s period on 650MHz with 32-bit clock) */
 if( old_cr16 > new_cr16 ){
   /* Adjust for 1 overrun */
   delta_cr16 = (2<<32) - (old_cr16 - new_cr16);
 } else {
   delta_cr16 = new_cr16 - old_cr16;
 }
 /* WARNING: ADJUST FOR TIME TAKEN IN THIS ROUTINE? */

output:
	delta_cr16
	delta_overrun

- Enable interrupts 
====
Kernel Light Weight Syscall: get_current_time(&user_cr16, &user_overrun)

- Disable interrupts
- Get CPU #
 - Get Bootup cr16 for cpu (boot_cr16)

 /* Comprise a pseudo-64 bit clock */
 - Get Overrun cr16 for cpu (overrun_cr16)
 - Get Current cr16 for cpu (current_cr16)

 /* Does normalization go away if we can accurately sync all the
    cpu cr16's at bootup? Re: Grant's discussion about loop and
    sync */

 /* Normalize based on boot_cr16 (And drift?) */
 if ( boot_cr16 > current_cr16 ){
    *user_overrun = overrun_cr16 - 1;
    *user_cr16 = (2<<32) - (boot_cr16 - current_cr16); 
 } else {
    *user_overrun = overrun_cr16;
    *user_cr16 = current_cr16 - boot_cr16;
 }
 /* WARNING: ADJUST FOR TIME TAKEN IN THIS ROUTINE? */

- Enable interrupts
Output:
	user_cr16
	user_overrun
====

==== Userspace View ====

cr16_bitwidth=`/proc/cpuinfo | grep cr16_bitwidth | sed 's/cr16_bitwidth=//g'`
cr16_period=`/proc/cpuinfo | grep cr16_period | sed 's/cr16_period=//g'`

get_current_time(&user_cr16, &user_overrun);
... Code ...
get_current_diff(user_cr16, user_overrun, &delta_cr16, &delta_overrun);

nano_diff = delta_overrun * (2<<cr16_bitwidth) * cr16_period +
            delta_cr16 * cr16_period

====

With a 64-bit kernel and cpu these problem all go away. 

c.



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Subject: Re: [parisc-linux] traps.c 2.4 alignement [was: 2.6.0-test6-pa6 on b2k finaly crash]
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On Mon, Oct 06, 2003 at 06:21:50PM +0200, Joel Soete wrote:
> Finaly it works on my c110 and also on a b180l :)
> 
> But, as we could awaiting when such code=13 (conditional trap iirc), occurs
> in kernel mode (as on my b2k or Max's c3k) the kernel hang without advise
> :(

It happens in "kernel mode" ? That should trigger an oops? It's a SIGFPE
for the kernel :)

c.



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Subject: Re: [parisc-linux] traps.c 2.4 alignement [was: 2.6.0-test6-pa6 on b2k finaly crash]
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Grant,

As mentionned I couldn't reproduced just after this panic.
If the event re-occurs I will try first chaning 'ccio_mem_ratio' and let
you inform of progress.

Thanks a lot,
    Joel


>-- Original Message --
>Date: Mon, 6 Oct 2003 11:28:56 -0600
>From: Grant Grundler <grundler@parisc-linux.org>
>To: Joel Soete <soete.joel@tiscali.be>
>Cc: Carlos O'Donell <carlos@baldric.uwo.ca>,
>	"M. Grabert" <xam@cs.ucc.ie>, parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] traps.c 2.4 alignement [was: 2.6.0-test6-pa6
>on b2k finaly crash]
>
>
>On Sun, Oct 05, 2003 at 05:07:21PM +0000, Joel Soete wrote:
> hmm don't think if it's related but just in case:
> I was just copying my kernel tree with 'tar cslpf - 
> linux-2.6.0-test6-pa6 | ( cd Work ; tar xslpf -)' when
> 
> Kernel panic: driv
>rs/parisc/ccio-dma.c: ccio_alloc_range() I/O M.

You ran out of mapping resources.
        panic(__FILE__ ": %s() I/O MMU is out of mapping resources.\n",
	              __FUNCTION__);

> I just retry same operation on the same system with same k
>rnel but 
> doesn't occurs a second time?

Not surprising. The bitmap search will fail if everything gets
mapped "sparsely" or we try to search for a large mapping (>32K, ie more
than 8 pages) but can't find it. If this is repeatible problem, chan
>e

	/* Ratio of Host MEM to IOV Space size */
	static unsigned long ccio_mem_ratio = 4;

in drivers/parisc/ccio-dma.c (2.6 kernel) to 2.

One patch would be welcome here: figure out a threshold when
allocations for single pages should share an 
>-page "chunk"
(effectively one TLB entry).  E.g. differentiate between LAN
and SCSI requests.  LAN typically wants 1 entry (1500 byte MTU)
unless someone starts testing "Large Send" and is very "linear"
in it's DMA behavior (one DMA stream at a tim
>).  SCSI typically
wants 64k/128k (16 or 32 entries), has lots of those, and any one
of those could be the "next" DMA stream. ie thrashing the IO TLB
is much more likely with SCSI than LAN and we should allocate
entries differently based on that.

>
The patch might be something like:
	if ((pci_dev->class & MASK) == PCI_BASE_CLASS_NETWORK) {
	...

in the right places to use a different (and new?) search loop.

grant



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Subject: Re: [parisc-linux] traps.c 2.4 alignement [was: 2.6.0-test6-pa6 on b2k finaly crash]
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Hi Carlos,

>>
>>On Mon, Oct 06, 2003 at 06:21:50PM +0200, Joel Soete wrote:
>> Finaly it works on my c110 and also on a b180l :)
>> 
>> But, as we could awaiting when such code=13 (conditional trap iirc), occurs
>> in kernel mode (as on my b2k or Max's c3k) the kernel
>>hang without advise
>> :(
>
>It happens in "kernel mode" ?

That is what said the original oops (a bug in init of console)?

> That should trigger an oops? It's a SIGFPE for the kernel :)

I so need more work

Thanks,
    Joel


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Hi all,

I come back to this bug to just notice that in the init of 2.4 it was:
[...]
Initializing RT netlink socket
Soft power switch enabled, polling @ 0xf0400804.
SuperIO: Found NS87560 Legacy I/O device at 00:0e.1 (IRQ 64) 
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
parport0: PC-style at 0x378, irq 101 [PCSPP(,...)]
[...]

so 'superio_init' (if i don't mistake)

but here in 2.6:
[...]
Soft power switch enabled, polling @ 0xf0400804.
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision
[...]

so not superio_init (even thought CONFIG_SUPERIO=y and well find this function
into vmlinux)?

hth,
    Joel




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From: "Padgett, Pat M [NTWK SVCS]" <PatPadgett@NMCC.SprintSpectrum.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] linux-2.6.0-test6 crash on R390
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Running apt-get update crashed my machine.  Is there any other
information that I can provide?  I didn't compile the kernel with
debugging info.

apt-get(168): unaligned access to 0x40768094 at ip=3D0x4005e47f
apt-get(168): unaligned access to 0x40768094 at ip=3D0x4005e47f

Stack Dump:
 10334418:  10334418 00000000 00000000 00000000=20
 10334408:  00000000 10347810 00000000 00000000=20
 103343f8:  00000000 00000000 00000000 10113c48=20
 103343e8:  00000000 00000000 00000000 10334080=20
 103343d8:  00000000 00000000 10334080 00000000=20
 103343c8:  00000000 00000001 0010b024 00000000=20
 103343b8:  00000000 00000000 00000000 10106794=20
 103343a8:  00000000 00000000 00000000 00000000=20
 10334398:  00000000 00000000 00000000 00000000=20
 10334388:  00000000 00000000 00000000 00000000=20
 10334378:  00000000 00001338 00000000 00000000=20
 10334368:  00000000 00000000 00000000 00008000=20
 10334358:  00343000 00338000 001125c4 00000000=20
 10334348:  00000000 00000000 00000000 00000000=20
 10334338:  00000000 00000000 00000000 00000000=20
 10334328:  00000000 00000000 00000000 00000000=20
 10334318:  00000000 00000000 00000000 00000000=20
 10334308:  00000000 00000000 00000000 00000000=20
 103342f8:  00000000 00000000 00000000 00000000=20
 103342e8:  00000000 00000000 00000000 00000000=20
 103342d8:  00000000 00000000 00000000 00000000=20
 103342c8:  00000000 00000000 00000000 00000000=20
 103342b8:  00000000 00000000 00000000 1010c098=20
 103342a8:  00000000 00000000 00000000 00000000=20
 10334298:  00000000 00000000 00000000 00000000=20
 10334288:  00000000 00000000 00000000 00000000=20
 10334278:  00000000 00000000 00000000 00000000=20
 10334268:  00000000 00000000 00000000 00000000=20
 10334258:  00000000 00000000 40768094 00000121=20
 10334248:  0ee05094 00000008 00000000 00000000=20
 10334238:  00000000 00000000 00000000 4005e483=20
 10334228:  4005e47f 00000121 00000121 00000121=20
 10334218:  00000121 00000121 00000121 00000121=20
 10334208:  00000000 00000114 00000000 00000000=20
 103341f8:  00000000 00000000 00000000 00000000=20
 103341e8:  00000000 00000000 00000000 00000000=20
 103341d8:  00000000 00000000 00000000 00000000=20
 103341c8:  00000000 00000000 00000000 00000000=20
 103341b8:  00000000 00000000 00000000 00000000=20
 103341a8:  00000000 00000000 00000000 00000000=20
 10334198:  00000000 00000000 00000000 00000000=20
 10334188:  00000000 00000000 00000000 00000000=20
 10334178:  00000000 00000000 00000000 00000000=20
 10334168:  00000000 00000000 00000000 00000000=20
 10334158:  00000000 00000000 00000000 00000000=20
 10334148:  00000000 00000000 00000000 00000000=20
 10334138:  00000000 00000000 00000000 00000000=20
 10334128:  00000000 00000000 00000000 00000000=20
 10334118:  00000000 00000000 00000000 00000000=20
 10334108:  00000000 00000000 00000000 000282a3=20
 103340f8:  faf013c0 400c65a7 0004dc40 00040220=20
 103340e8:  00002370 00000038 faf01228 40768044=20
 103340d8:  00000000 00000163 00002370 40111868=20
 103340c8:  00014000 0000000f faf008c0 faf00a8c=20
 103340b8:  faf00948 faf00ab0 00015168 faf00d0c=20
 103340a8:  faf01228 faf00dd8 0004cea0 0004cea4=20
 10334098:  faf00ad8 40111868 00000038 4076808c=20
 10334088:  40098df3 00044a20 00000000 00000000=20
 10334078:  00000000 00000000 00000000 00112554=20
 10334068:  00000000 00000000 00000000 00000000=20
 10334058:  00000000 00000000 00000000 00340000=20
 10334048:  00000000 00000000 00000000 00000000=20
 10334038:  00000000 00000000 00000000 00000000=20
 10334028:  00000000 00000000 00000000 00000000=20

Kernel addresses on the stack:
 [<101065d8>] parisc_terminate+0x7c/0xf4
 [<10113c48>] pdc_console_restart+0x38/0x64
 [<10106794>] handle_interruption+0x144/0x598
 [<1010c098>] intr_check_sig+0x0/0xc


High Priority Machine Check (HPMC): Code=3D1 regs=3D10334080 =
(Addr=3D00000000)

Thanks,
Pat Padgett


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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] traps.c 2.4 alignement [was: 2.6.0-test6-pa6 on b2k finaly crash]
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>> But, as we could awaiting when such code=13 (conditional trap iirc), occurs
>> in kernel mode (as on my b2k or Max's c3k) the kernel
>>hang without advise
>> :(
>
>It happens in "kernel mode" ?

Even thought it shouldn't happen but would just help in case of unthinkable
bug :)

> That should trigger an oops? It's a SIGFPE for the kernel :)

Yes it should as far as i can follow force_sig_info() it would 'schedule'
a SIGFPE. But in this very particular situation of the early boot, imho the
scheduler is not yet launched.

So may be this second draft would help more in this case?
(I hope that attachement will be readable?)

Thanks again,
    Joel


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Subject: Re: [parisc-linux] linux-2.6.0-test6 crash on R390
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In reference to a message from Padgett, Pat M [NTWK SVCS], dated Oct 07:
> Running apt-get update crashed my machine.  Is there any other
> information that I can provide?  I didn't compile the kernel with
> debugging info.

http://www.parisc-linux.org/faq/kernelbug-howto.html

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Rene Brothuhn <rene.br@web.de>
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Subject: [parisc-linux] Re: NCR53c720
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Hello!

On 2003.09.30 16:32 Matthew Wilcox wrote:
> On Tue, Sep 30, 2003 at 03:59:32PM +0200, Rene Brothuhn wrote:
> > but the 720/770 registers are slightly different.
> > Is the NCR_Q720 or zalon driver working?
> 
> Yes, they're both working fine.
> 
> I went over the 770 register definitions the other night and only found
> one difference between the names of the definitions in the sym53c8xx_defs
> file and the 770 PDF and that was:
> 
> -/*3a*/  u_char    nc_sbr;
> +/*3a*/  u_char    nc_sbr; /* dwt on 720 */
> 
> This is the DMA watchdog timer, but it's not actually used by the driver.
> It's a `scratch byte register' on the 895.  Some of the `reserved'
> fields in the 770 register definition have names, but they were only
> ever touched if the chip was a sufficiently recent revision.
> 
> BTW, I couldn't see a document for the 720 chip on the LSI site -- only
> the 710 and 770.  I presume I won't go far wrong treating them the same.

Sorry for reacting so late. I also have no doc for the 720, but I think 
the differences between 770 and 720 are not so big.
I'm sure there are a lot more differences between the 8xx and 720/770. Not 
only the registers or register names but also the bits inside some 
registers are slightly different.
I have some PDF's on which the differences between the chips are 
described. It seems that these docs are not available anymore on the LSI 
site. I'll send it directly to you, because the size is to much for the 
list.
I hope this will help you.

I have looked into the driver a little bit last weekend and I guess it 
should be possible to provide a 770 definition into the driver. But first 
I have to got a workable 2.6 kernel...


Ciao, Ren


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Hello!

On 2003.09.30 16:55 Roman Zippel wrote:
> Hi,
> 
> On Tue, 30 Sep 2003, Rene Brothuhn wrote:
> 
> > But the mean problem is, that there is no working 2.6 kernel for
> APUS...
> 
> That's not really true anymore, it boots here now. :-)

Sounds nice! Where can I get the working sources?


Ciao, Ren


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From: "Padgett, Pat M [NTWK SVCS]" <PatPadgett@NMCC.SprintSpectrum.com>
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Subject: [parisc-linux] A3591B (Tachyon) FC Card
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Xref: news.gmane.org gmane.linux.ports.parisc:19753

I am interested in making this card work.  If anyone else is, I would
certainly appreciate some help!  :)

I'm trying to figure out whether it would be a good idea to use some of
the existing code in the cpqfcTS* driver (similar to the way that the
zalon7xx scsi host template calls code in the ncr53c8xx driver).
However, the cpqfcTS* code is quite a beast, perhaps writing the driver
from scratch would be better?  (Googling the list archives shows that
I'm not the only one intimidated(?) by the compaq code :)

I haven't been able to find ANY documentation on this particular card
(not counting the installation manual).  Does anyone else have docs for
this card or the Tachyon(?) chipset it uses??

I guess the icing on the cake is the fact that I don't have ANY
experience writing device drivers.  However, I was able to find an old
article by Alan Cox on how to write a simple scsi driver that has been
very helpful.  I'd appreciate any references to other docs that may be
helpful to a neophyte like myself (specifically, anything that may
explain the parisc-linux specific interfaces register_parisc_driver(),
and the GSC interfaces).

Thank you,

Pat Padgett


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: RE: [parisc-linux] A3591B (Tachyon) FC Card
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>
>I'm trying to figure out whether it would be a good idea to use some of
>the existing code in the cpqfcTS* driver (similar to the way that the
>zalon7xx scsi host template calls code in the ncr53c8xx driver).
>However, the cpqfcTS* code is quite a beast, perhaps writing the driver
>from scratch would be better?  (Googling the list archives shows that
>I'm not the only one intimidated(?) by the compaq code :)
>
Hi,

Because I would also like to test Tachyon based FC card on a N, I had the
opportunity to discuss by email with the maintainer of this code (iirc on
sf.net). He recognised himself that it would have to re-writte but have no
time to do :(

For my part, I didn't find much more doc on this cards and so abandon the
idea to write this code (I am also a beginner in this field).
I can just wish you better success :)

Joel



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L'Internet rapide, c'est pour tout le monde. Tiscali ADSL, 19,50 Euro
pendant 3 mois! http://reg.tiscali.be/default.asp?lg=fr 




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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] A3591B (Tachyon) FC Card
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On Mer, 2003-10-08 at 15:28, Padgett, Pat M [NTWK SVCS] wrote:
> I haven't been able to find ANY documentation on this particular card
> (not counting the installation manual).  Does anyone else have docs for
> this card or the Tachyon(?) chipset it uses??

If I remember rightly tachyon is one of the FC chipsets where you have
to implement a *lot* of higher level FC handling yourself. As to using
the compaqfc code I wish you luck, but if you do clean it up so it is
understandable and sumbit the cleanups that will in itself be a good
deed for the year 8)

> I guess the icing on the cake is the fact that I don't have ANY
> experience writing device drivers. 

FC is not the place to start. The specifications are complex, frequently
bear no relation to the real world and you have a lot more to handle
than the scsi layer itself will look after.




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>>>>> "Alan" == Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

Alan> If I remember rightly tachyon is one of the FC chipsets where
Alan> you have to implement a *lot* of higher level FC handling
Alan> yourself. 

That's true only for the really old tachyon chips.  The TS and TL
chips supported by the Compaq driver as well as the XL2 are all recent
enough to have a fibre channel state machine on chip.

-- 
Martin K. Petersen      http://mkp.net/



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> dub@latnet.lv  dub@latnet.lv
> Wed, 24 Sep 2003 18:25:47 +0300 (EEST)
> I run Debian vmlinux-parisc-2.4.20-32-smp on K210. Not recently I faced a
> strange hang situation. Host stopped responding both from network and console, 
> ethernet port remained up on link level. In syslog.log and kernel.log I see scsi
> problems.
> After restarting all disks are OK (one of mirror partitions was resynced 
> manually). 

Hi,

Just for your information. The problem was with a SCSI disk. After a week, it
had more problems and md mirroring removed it. I tried to issue dd.

dd if=/dev/sdf1 of=/dev/null bs=64k
dd: reading `/dev/sdf1': Input/output error

After some seconds the system stopped responding (I saw it when entering the
next command).

My Humble Conclusion. Comaring to HP-UX, Debian is not so stable on PA-RISC
platform. :-)

BR,
Dub




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There's a generic scheme for having defconfigs-for-different-systems
in 2.6.0-test7 (actually, it may have been there in -test6 too, but
we weren't using it).  I've added one for the 712 as an example.  To
use it, rather than typing "make defconfig", you type "make 712_defconfig".
The Makefile looks in arch/parisc/configs/ for a file by that name and
uses it if it finds it.

So what configs should we support?  This is one of those bikeshed kind
of questions, so let me take a stab at it first:

- 712 (Lasi, Wax, no PCI, no EISA.  targetted at exactly 712, may work on
	other snake-type boxes)
- hawk (adds ccio, eisa, PCI, ncr720, mux.  targetted at A180,
	B, C, J, D, K, R)
- music32 (SMP, PA8000, SBA PCI, no GSC, targetted at B1000-J6750)
- 32bit (everything.  should work on 705-J6750, including A180, EFGHI,
	B, C, J, D, K, R)
- music64 (SMP, PA64, SBA PCI.  targets A500, L2000, etc.)

I don't want to add any more than this because the effort of maintaining
all of them quickly adds up.  Is everybody happy with these suggestions?
Obviously, you can tweak your own config to your heart's content, these
will just be the defconfigs distributed with the kernel.

As far as naming goes, most of the boxes with ccio in them were some
kind of hawk, most of the boxes with SBA in them were named after musical
terms.  I suppose for consistency the 712 config should be called gecko...
Please, quibble about the names ;-)

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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I got annoyed with the device inventory which used to look like this:

7. Gecko 80 Audio (10) at 0xf0104000 [2/0/8], versions 0x1c, 0x0, 0x7b

I could never remember how these numbers corresponded to what I needed
to put in a driver (or compare with what was already in a driver).
So I changed it in 2.6.0-test7-pa2 to look like this:

7. Gecko 80 Audio at 0xf0104000 [2/0/8] { 10, 0x0, 0x01c, 0x0007b }

Now you can copy & paste it directly into a driver (possibly using
symbolic constants rather than literals ...).  It has the added benefit of
being slightly shorter so more of the names fit on one line.  The padding
to 3 and 5 digits is an additional reminder of which number is which.

I don't imagine this change will affect anybody too much, but it's a
user-visible change, so I thought I'd mention it.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi Matthew,

Sorry but it doesn't help yet to boot the b2k model (always same symptom)
Or do i lost something and should I have to wait for a 32bits_defconfig?

Thanks in advance for additional advise,
Joel

>-- Original Message --
>To: parisc-linux-cvs@lists.parisc-linux.org
>Reply-To: parisc-linux@lists.parisc-linux.org
>From: willy@parisc-linux.org (Matthew Wilcox)
>Date: Thu,  9 Oct 2003 08:00:21 -0600 (MDT)
>Subject: [parisc-linux-cvs] linux-2.6 willy
>
>
>CVSROOT:	/var/cvs
Module name:	linux-2.6
Changes by:	willy	03/10/09 08:00:21

Modified files:
	drivers/serial : 8250.c 8250_gsc.c 

Log message:
Register the serial console from the GSC driver, not just from SuckyIO.
Add a guard to prevent reg
>stering the serial console twice.

_______________________________________________
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parisc-linux-cvs@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux-cvs



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On Thu, Oct 09, 2003 at 07:24:16PM +0200, Joel Soete wrote:
> Hi Matthew,
> 
> Sorry but it doesn't help yet to boot the b2k model (always same symptom)
> Or do i lost something and should I have to wait for a 32bits_defconfig?

I haven't even tried to track down the problems on c3k yet.  I might
get round to it in a week or so.  Other issues are pressing.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Max <max@avtlg.ru>
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Subject: [parisc-linux] HP-PB 100 Base TX Support ?
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Is HP-PB 100 Base TX network card supported by  2.4.19-pa24
(PDC_CONSOLE)?



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On Thu, Oct 09, 2003 at 10:21:13PM +0400, Max wrote:
> Is HP-PB 100 Base TX network card supported by  2.4.19-pa24
> (PDC_CONSOLE)?

Almost certainly not.  If I remember correctly, this uses a custom
Interphase chip we don't have documentation for.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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I have scoured the FAQ and mailing lists.  Supposedly this has been  
resolved, but I am having the same old problems.

I just inherited an old K200 which I want to give my students as a  
"play" machine.  I am trying to install Debian 3.0 on it.  When I got  
the machine, it had no console whatsoever.  So I grabbed an old IBM  
3151 and plugged into the machine.  Works, no problem.  I can boot into  
HPUX just fine (which is still on the machine).

I tried to boot to the CD.  After a few stack dumps, a learned from the  
mailing list that I needed to change my console to ttyB0 from ttyS0.   
No more stack dumps.  However, after the message that says I might not  
see anything (and hence need to switch consoles), I do not see  
anything.  Supposedly this issue was fixed in the install CDs (at least  
that is what mailing list says), but doesn't seem so to me.

Is this an issue with the install CDs, or do I need to do something  
funky with the IBM 3151?

------------------------------------------------------------------------ 
-----------------------
| Walker White                                                           
  Assistant Professor  |
| wmwhite@udallas.edu                                                    
Dept. of Mathematics  |
| 972 -721-5380                                                          
University of Dallas  |
------------------------------------------------------------------------ 
-----------------------



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On Donnerstag, 09. Oktober 2003 17:05, Matthew Wilcox wrote:
> - 712 (Lasi, Wax, no PCI, no EISA.  targetted at exactly 712, may work on
> 	other snake-type boxes)

Maybe we should add EISA to this configuration, in which case
it would fit 715 machines too ?

Helge


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On Thu, Oct 09, 2003 at 11:21:18PM +0200, Helge Deller wrote:
> On Donnerstag, 09. Oktober 2003 17:05, Matthew Wilcox wrote:
> > - 712 (Lasi, Wax, no PCI, no EISA.  targetted at exactly 712, may work on
> > 	other snake-type boxes)
> 
> Maybe we should add EISA to this configuration, in which case
> it would fit 715 machines too ?

My intent was that these machines would use a "hawk" configuration.  Keep
gecko minimal and expansion-less, and hawk gets all the EISA and PCI cards
compiled as modules.

The thing about 715 expansion is that (at least for 715/Mirage), you can
plug a GSC cardmode Dino into the expansion socket, so we should enable
that ... and the PCI drivers for whichever chips got put on a card with
Dino (Tulip, acenic, ... must be others?), NCR720, etc.

This starts to get kind of complicated.  I'd rather maintain these in
the hawk config.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Thu, Oct 09, 2003 at 09:39:43PM -0600, Grant Grundler wrote:
> We should probably add a "how-to burn CDs on Windows" link to
> the FAQ at www.parisc-linux.org and/or debian/ports/hppa page.

Here's the URL at least:
	http://www.e-smith.org/docs/howto/CD_burning_howto.php3

grant


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Matthew,

Sorry I just trust that was related to a previous mail :(

In fact I was just looking for a place to put superio_?_init() calls (was
in rs_init() in 2.4?).

Thanks for ypur attention,
    Joel

>-- Original Message --
>Date: Thu, 9 Oct 2003 18:34:36 +0100
>From: Matthew Wilcox <willy@debian.org>
>To: Joel Soete <soete.joel@tiscali.be>
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 willy
>
>
>On Thu, Oct 09, 2003 at 07:24:16PM +0200, Joel Soete wrote:
> Hi Matthew,
> 
> Sorry but it doesn't help yet to boot the b2k model (always same symptom)
> Or do i lost something and should I have to wait for a 32bits_defconfig?

I haven't even tr
>ed to track down the problems on c3k yet.  I might
get round to it in a week or so.  Other issues are pressing.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thous
>nds of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert
Fisk



-------------------------------------------------------------------------
L'Internet rapide, c'est pour tout le monde. Tiscali ADSL, 19,50 Euro
pendant 3 mois! http://reg.tiscali.be/default.asp?lg=fr 




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Xref: news.gmane.org gmane.linux.ports.parisc:19770

Looks like you've been rather unlucky with your search :-P

On the m-l page (http://www.parisc-linux.org/mailing-lists/) this mail
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-March/=20
019399.html
would have told you to look at:
1) http://pateam.esiee.fr/doc.html for a boot howto
and at
5) http://pateam.esiee.fr/list.html for per machine details.

The latter link would have told you that for K200 you need PDC_CONSOLE =20=

which is enabled by default on the netinst isos available from both =20
pateam and parisc-linux.org, and would also have pointed you at all the =20=

data you need to install your box with the following useful m-l thread:

http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/=20
017840.html

details being also present in the boot howto afore mentioned...

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/

Le jeudi, 9 oct 2003, =E0 20:26 Europe/Paris, Walker White a =E9crit :

> I have scoured the FAQ and mailing lists.  Supposedly this has been =20=

> resolved, but I am having the same old problems.
>
> I just inherited an old K200 which I want to give my students as a =20
> "play" machine.  I am trying to install Debian 3.0 on it.  When I got =20=

> the machine, it had no console whatsoever.  So I grabbed an old IBM =20=

> 3151 and plugged into the machine.  Works, no problem.  I can boot =20
> into HPUX just fine (which is still on the machine).
>
> I tried to boot to the CD.  After a few stack dumps, a learned from =20=

> the mailing list that I needed to change my console to ttyB0 from =20
> ttyS0.  No more stack dumps.  However, after the message that says I =20=

> might not see anything (and hence need to switch consoles), I do not =20=

> see anything.  Supposedly this issue was fixed in the install CDs (at =20=

> least that is what mailing list says), but doesn't seem so to me.
>
> Is this an issue with the install CDs, or do I need to do something =20=

> funky with the IBM 3151?
>
> =
-----------------------------------------------------------------------=20=

> ------------------------
> | Walker White                                                         =
=20
>   Assistant Professor  |
> | wmwhite@udallas.edu                                                  =
=20
>  Dept. of Mathematics  |
> | 972 -721-5380                                                        =
=20
>  University of Dallas  |
> =
-----------------------------------------------------------------------=20=

> ------------------------
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>




From - Thu Nov 08 21:29:31 2018
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From: "Wolfram Gloger" <wg@malloc.de>
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Subject: [parisc-linux] Re: [RFC] Where to put arch-dependant locking in malloc/thread-m.h
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To: carlos@baldric.uwo.ca
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Xref: news.gmane.org gmane.linux.ports.parisc:19771

This is a multi-part message in MIME format.
--++----------20031010142201-104024179----------++
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Hi,

>The following patch fixes the issue, but I'm not content about it's
>placement in malloc/thread-m.h. Any comments about where I might put
>this in order to make maintenance easier?

The malloc-machine.h specific headers are now in place,
so you might want to propose something like the following?

Regards,
Wolfram.

2003-10-10  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* sysdeps/hppa/malloc-machine.h: New file.

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From: Max <max@avtlg.ru>
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Subject: [parisc-linux] Mux + DDP + Terminal 700/80
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Hello.

Is it possible connect terminal 700/80 -> DDP -> MUX -> K100 ?

Tnx.



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Xref: news.gmane.org gmane.linux.ports.parisc:19774

On Friday, October 10, 2003, at 04:13 AM, Thibaut VAR=C8NE wrote:

> Looks like you've been rather unlucky with your search :-P
> <snip>

Read all those and others.  Other e-mails in that thread referenced =20
seemed to imply that this change had been incorporated into all install =20=

images (as there are no PDC suffixes any more).  So I (incorrectly) =20
assumed that the latest Debian images had this fix.  Debian 3.0 is =20
newer than the 2001 thread that first found this console issue (the =20
2002 thread referenced does not mention the console issue explicitly).

I was wrong; this problem was fixed when I got the PARISC images =20
instead.  But this really should be a line item in the FAQ...

However, now I have another issue caused(?) by the netinstall CD.  =20
Whenever I try to install via ftp or http I get an "cannot download" =20
error on files midway through the base installation process.  For the =20=

longest time it was apt_0.5.4_.  I tried every mirror in reasonable =20
proximity.  No luck.

Finally, I switched to CD install and used the Debian CD (the one that =20=

will not boot to the console).  This works, but then it hangs on =20
bsd_utils.  For hours.  I eventually gave up and rebooted.  And I =20
cannot seem to download this file either.

Anyone have any idea what is going on here?

-Walker

------------------------------------------------------------------------=20=

-----------------------
| Walker White                                                          =20=

  Assistant Professor  |
| wmwhite@udallas.edu                                                   =20=

Dept. of Mathematics  |
| 972 -721-5380                                                         =20=

University of Dallas  |
------------------------------------------------------------------------=20=

-----------------------



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Xref: news.gmane.org gmane.linux.ports.parisc:19775

Le vendredi, 10 oct 2003, =E0 18:35 Europe/Paris, Walker White a =E9crit =
:
>
> However, now I have another issue caused(?) by the netinstall CD. =20
> Whenever I try to install via ftp or http I get an "cannot download"=20=

> error on files midway through the base installation process.  For the=20=

> longest time it was apt_0.5.4_.  I tried every mirror in reasonable=20
> proximity.  No luck.
>
> Finally, I switched to CD install and used the Debian CD (the one that=20=

> will not boot to the console).  This works, but then it hangs on=20
> bsd_utils.  For hours.  I eventually gave up and rebooted.  And I=20
> cannot seem to download this file either.
>
> Anyone have any idea what is going on here?

How much RAM does your box have?
I have already seen that kind of trouble with boxes shipped with less=20
than 64MB RAM...

It's also possible that these 2.4.22 ISOs are somehow corrupted, but=20
considering the ratio of downloads vs complaints, it seems quite=20
unlikely (or so I hope).
Obviously we can't test all these ISOs as we're building them...


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=




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256 MB of RAM (4 64 MB chips).  With 4 2GB SCSI drives.

I managed to get it to work by doing the following:

a) Do network install until reaching a download error.
b) Swap to the Debian CD.
c) Load from Debian CD until a perceptible hang.
d) Reboot machine and remount all drives.
e) Goto (a) and repeat until base install finished.

That seemed to work (just finised a few minutes ago), but now the  
machine does not boot on restart.  I am currently trying to fish the  
kernel off the netinstall CDs (I cannot find vmlinux32 anywhere) --  
just in case the installed kernel is bad.


> How much RAM does your box have?
> I have already seen that kind of trouble with boxes shipped with less  
> than 64MB RAM...
>
> It's also possible that these 2.4.22 ISOs are somehow corrupted, but  
> considering the ratio of downloads vs complaints, it seems quite  
> unlikely (or so I hope).
> Obviously we can't test all these ISOs as we're building them...
>
>
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://pateam.esiee.fr/
>
>
------------------------------------------------------------------------ 
-----------------------
| Walker White                                                           
  Assistant Professor  |
| wmwhite@udallas.edu                                                    
Dept. of Mathematics  |
| 972 -721-5380                                                          
University of Dallas  |
------------------------------------------------------------------------ 
-----------------------



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Okay.  Almost done here.  That swap trick DID work.  It just did not  
read the K200 manual to see that HP boots from the end of the SCSI  
chain and not the beginning.  So everything is loaded and it boots.

However my boot crashes right after loading cron.  This is possibly a  
result of the fact that some of my packages came from the debian CD and  
not the netinstall.  Here is the error:

***
Starting periodic command scheduler: cron
/bin/sh: /dev/ttyB0: No such device
/bin/sh: /dev/ttyB0: No such device
/bin/sh: /dev/ttyB0: No such device
/bin/sh: /dev/ttyB0: No such device
/bin/sh: /dev/ttyB0: No such device
/bin/sh: /dev/ttyB0: No such device
/bin/sh: /dev/ttyB0: No such device
/bin/sh: /dev/ttyB0: No such device
/bin/sh: /dev/ttyB0: No such device
/bin/sh: /dev/ttyB0: No such device
INIT: Id "T0" respawning to fast: disabled for 5 minutes
INIT: no more processes left in this runlevel

The machine then sleeps for 5 minutes and repeats the error on wake-up  
(so I never get a login).

Using the installation CD, I have opened a shell to verify that there  
is indeed a /dev/ttyB0.  Is this error because I got packages from a  
source other than the netinst CD or is there something else going on  
here?

-Walker

------------------------------------------------------------------------ 
-----------------------
| Walker White                                                           
  Assistant Professor  |
| wmwhite@udallas.edu                                                    
Dept. of Mathematics  |
| 972 -721-5380                                                          
University of Dallas  |
------------------------------------------------------------------------ 
-----------------------



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Subject: [parisc-linux] Re: [RFC] Where to put arch-dependant locking in malloc/thread-m.h
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On Fri, Oct 10, 2003 at 12:22:06PM -0000, Wolfram Gloger wrote:
> The malloc-machine.h specific headers are now in place,
> so you might want to propose something like the following?
> 
> Regards,
> Wolfram.

Many thanks Wolfram! I've just gotten back from a trip and I had all my
patches ready to send out :)

Cheers,
Carlos.


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Subject: [parisc-linux] [PATCH] hppa machine-malloc.h
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libc-alpha,

Machine specific hppa malloc locking functions.

Thanks to Wolfram for making the required changes, and reminding me to
submit my patches ;)

Cheers,
Carlos.
===
 linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h |   73 ++++++++++
 1 files changed, 73 insertions(+)
===

2003-10-10  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h: New.

--- libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h	2003-10-04 12:52:09.000000000 -0400
@@ -0,0 +1,73 @@
+/* HP-PARISC macro definitions for mutexes, thread-specific data 
+   and parameters for malloc.
+   Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 2003.
+   
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _MALLOC_MACHINE_H
+#define _MALLOC_MACHINE_H
+
+#undef thread_atfork_static
+
+#include <atomic.h>
+#include <bits/libc-lock.h>
+
+__libc_lock_define (typedef, mutex_t)
+
+/* Since our lock structure does not tolerate being initialized to zero, we must
+   modify the standard function calls made by malloc */
+#  define mutex_init(m)		\
+	__libc_maybe_call (__pthread_mutex_init, (m, NULL), \
+		(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT),(*(int *)(m))) )
+#  define mutex_lock(m)		\
+	__libc_maybe_call (__pthread_mutex_lock, (m), \
+			(__load_and_clear(&((m)->__m_lock.__spinlock)), 0))
+#  define mutex_trylock(m)	\
+	__libc_maybe_call (__pthread_mutex_trylock, (m), \
+			(*(int *)(m) ? 1 : (__load_and_clear(&((m)->__m_lock.__spinlock)), 0)))
+#  define mutex_unlock(m)	\
+	__libc_maybe_call (__pthread_mutex_unlock, (m), \
+			(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT), (*(int *)(m))) )
+	
+/* This is defined by newer gcc version unique for each module.  */
+extern void *__dso_handle __attribute__ ((__weak__));
+
+#include <fork.h>
+
+#ifdef SHARED
+# define thread_atfork(prepare, parent, child) \
+   __register_atfork (prepare, parent, child, __dso_handle)
+#else
+# define thread_atfork(prepare, parent, child) \
+   __register_atfork (prepare, parent, child,				      \
+		      &__dso_handle == NULL ? NULL : __dso_handle)
+#endif
+
+/* thread specific data for glibc */
+
+#include <bits/libc-tsd.h>
+
+typedef int tsd_key_t[1];	/* no key data structure, libc magic does it */
+__libc_tsd_define (static, MALLOC)	/* declaration/common definition */
+#define tsd_key_create(key, destr)	((void) (key))
+#define tsd_setspecific(key, data)	__libc_tsd_set (MALLOC, (data))
+#define tsd_getspecific(key, vptr)	((vptr) = __libc_tsd_get (MALLOC))
+
+#include <sysdeps/generic/malloc-machine.h>
+
+#endif /* !defined(_MALLOC_MACHINE_H) */


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libc-alpha,

I've split linuxthreads for HPPA into 3 digestible patches:

1. Linuxthreads general changes.
2. Linuxthreads sysdep changes.
3. Linuxthreads changes for HPPA.

===

1. Linuxthreads general changes. 

Tested on i386, Alpha, and HPPA. Debian has been using this code since 2.3.1.
All of this code revolves around two central architecture issues:

a. HPPA needs an abstraction for it's atomic lock type.
b. The lock type cannot be initialized to zero.
c. HPPA's stack grows up.

NTPL and TLS are next on the plate for HPPA. Thanks for being patient.

Cheers,
Carlos

===
 linuxthreads/descr.h      |    2
 linuxthreads/pt-machine.c |    4 -
 linuxthreads/spinlock.c   |   22 +++---
 linuxthreads/spinlock.h   |   26 +++++--
 linuxthreads/manager.c    |    5 +
 linuxthreads/pthread.c    |   36 +++++++---
 6 files changed, 66 insertions(+), 29 deletions(-)
===

2003-10-06  Carlos O'Donell <carlos@baldric.uwo.ca>

	* linuxthreads/descr.h: Define p_spinlock as __atomic_lock_t 
	in struct pthread_atomic.
	* linuxthreads/pt-machine.c: Define testandset to take 
	__atomic_lock_t *spinlock.
	* linuxthreads/pthread.c (__pthread_initialize_minimal): 
	Use __LT_INITIALIZER_NOT_ZERO instead of __LT_SPINLOCK_INIT.
	(__pthread_self_stack): _STACK_GROWS_UP case added.
	(__pthread_find_self): Likewise.
	* linuxthreads/spinlock.c: __pthread_acquire call takes 
	__atomic_lock_t *spinlock, define abandoned as __atomic_lock_t 
	in struct wait_node, use __pthread_lock_define_initialized for 
	wait_node_free_list.
	(__pthread_alt_lock): Use __LT_SPINLOCK_INIT to clear abandoned.
	(__pthread_alt_timedlock): Likewise.
	(__pthread_alt_unlock): Use lock_held.
	(__pthread_release): Call takes __atomic_lock_t *spinlock.
	(__pthread_compare_and_swap): Likewise.
	(__pthread_acquire): Likewise.
	* linuxthreads/spinlock.h: Define lock_held, define 
	__pthread_lock_define_initialized for __LT_INITIALIZER_NOT_ZERO, 
	__pthread_compare_and_swap takes __atomic_lock_t *spinlock.
	(compare_and_swap): All versions takes __atomic_lock_t *spinlock.
	(compare_and_swap_with_release_semantics): Likewise.
	* linuxthreads/manager.c (thread_segment): _STACK_GROWS_UP case
	added.

diff -urN glibc-2.3.1.orig/linuxthreads/descr.h glibc-2.3.1/linuxthreads/descr.h
--- glibc-2.3.1.orig/linuxthreads/descr.h	2003-01-15 12:58:11.000000000 -0500
+++ glibc-2.3.1/linuxthreads/descr.h	2003-01-15 18:24:36.000000000 -0500
@@ -70,7 +70,7 @@
 /* Atomic counter made possible by compare_and_swap */
 struct pthread_atomic {
   long p_count;
-  int p_spinlock;
+  __atomic_lock_t p_spinlock;
 };
 
 
diff -urN glibc-2.3.1.orig/linuxthreads/pt-machine.c glibc-2.3.1/linuxthreads/pt-machine.c
--- glibc-2.3.1.orig/linuxthreads/pt-machine.c	2002-08-26 18:39:45.000000000 -0400
+++ glibc-2.3.1/linuxthreads/pt-machine.c	2003-01-15 18:24:36.000000000 -0500
@@ -19,7 +19,9 @@
 
 #define PT_EI
 
-extern long int testandset (int *spinlock);
+#include <pthread.h>
+
+extern long int testandset (__atomic_lock_t *spinlock);
 extern int __compare_and_swap (long int *p, long int oldval, long int newval);
 
 #include <pt-machine.h>
diff -u -p -r1.131 pthread.c
--- libc/linuxthreads/pthread.c	23 Sep 2003 04:33:01 -0000	1.131
+++ libc/linuxthreads/pthread.c	6 Oct 2003 14:48:18 -0000
@@ -300,9 +300,9 @@ __pthread_initialize_minimal(void)
   pthread_descr self;
 
   /* First of all init __pthread_handles[0] and [1] if needed.  */
-# if __LT_SPINLOCK_INIT != 0
-  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
-  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
 # endif
 # ifndef SHARED
   /* Unlike in the dynamically linked case the dynamic linker has not
@@ -370,7 +370,7 @@ cannot allocate TLS data structures for 
 # endif
   /* self->p_start_args need not be initialized, it's all zero.  */
   self->p_userstack = 1;
-# if __LT_SPINLOCK_INIT != 0
+# ifdef __LT_INITIALIZER_NOT_ZERO 
   self->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER;
 # endif
   self->p_alloca_cutoff = __MAX_ALLOCA_CUTOFF;
@@ -384,9 +384,9 @@ cannot allocate TLS data structures for 
 #else  /* USE_TLS */
 
   /* First of all init __pthread_handles[0] and [1].  */
-# if __LT_SPINLOCK_INIT != 0
-  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
-  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
 # endif
   __pthread_handles[0].h_descr = &__pthread_initial_thread;
   __pthread_handles[1].h_descr = &__pthread_manager_thread;
@@ -893,7 +893,11 @@ pthread_descr __pthread_find_self(void)
   /* __pthread_handles[0] is the initial thread, __pthread_handles[1] is
      the manager threads handled specially in thread_self(), so start at 2 */
   h = __pthread_handles + 2;
+# ifdef _STACK_GROWS_UP
+  while (! (sp >= (char *) h->h_descr && sp < h->h_descr->p_guardaddr)) h++;
+# else
   while (! (sp <= (char *) h->h_descr && sp >= h->h_bottom)) h++;
+# endif
   return h->h_descr;
 }
 
@@ -905,16 +909,28 @@ pthread_descr __pthread_self_stack(void)
   pthread_handle h;
 
   if (sp >= __pthread_manager_thread_bos && sp < __pthread_manager_thread_tos)
-    return manager_thread;
+     return manager_thread;
+  
   h = __pthread_handles + 2;
 # ifdef USE_TLS
+#  ifdef _STACK_GROWS_UP
+  while (h->h_descr == NULL
+	 || ! (sp >= (char *) h->h_descr->p_stackaddr && 
+	       sp < (char *) h->h_descr->p_guardaddr))
+#  else
   while (h->h_descr == NULL
-	 || ! (sp <= (char *) h->h_descr->p_stackaddr && sp >= h->h_bottom))
+	 || ! (sp <= (char *) h->h_descr->p_stackaddr && sp >= (char *) h->h_bottom))
+#  endif
     h++;
 # else
-  while (! (sp <= (char *) h->h_descr && sp >= h->h_bottom))
+#  ifdef _STACK_GROWS_UP
+  while ( !(sp >= (char *) h->h_descr && sp < (char *) h->h_descr->p_guardaddr))
+#  else
+  while ( !(sp <= (char *) h->h_descr && sp >= (char *) h->h_bottom))
+#  endif
     h++;
 # endif
+  
   return h->h_descr;
 }
 
diff -urN glibc-2.3.1.orig/linuxthreads/spinlock.c glibc-2.3.1/linuxthreads/spinlock.c
--- glibc-2.3.1.orig/linuxthreads/spinlock.c	2002-08-29 06:32:19.000000000 -0400
+++ glibc-2.3.1/linuxthreads/spinlock.c	2003-01-15 18:24:36.000000000 -0500
@@ -24,9 +24,9 @@
 #include "spinlock.h"
 #include "restart.h"
 
-static void __pthread_acquire(int * spinlock);
+static void __pthread_acquire(__atomic_lock_t * spinlock);
 
-static inline void __pthread_release(int * spinlock)
+static inline void __pthread_release(__atomic_lock_t * spinlock)
 {
   WRITE_MEMORY_BARRIER();
   *spinlock = __LT_SPINLOCK_INIT;
@@ -269,11 +269,11 @@
 struct wait_node {
   struct wait_node *next;	/* Next node in null terminated linked list */
   pthread_descr thr;		/* The thread waiting with this node */
-  int abandoned;		/* Atomic flag */
+  __atomic_lock_t abandoned;	/* Atomic flag */
 };
 
 static long wait_node_free_list;
-static int wait_node_free_list_spinlock;
+__pthread_lock_define_initialized(static, wait_node_free_list_spinlock);
 
 /* Allocate a new node from the head of the free list using an atomic
    operation, or else using malloc if that list is empty.  A fundamental
@@ -376,7 +376,7 @@
       if (self == NULL)
 	self = thread_self();
 
-      wait_node.abandoned = 0;
+      wait_node.abandoned = __LT_SPINLOCK_INIT;
       wait_node.next = (struct wait_node *) lock->__status;
       wait_node.thr = self;
       lock->__status = (long) &wait_node;
@@ -402,7 +402,7 @@
       wait_node.thr = self;
       newstatus = (long) &wait_node;
     }
-    wait_node.abandoned = 0;
+    wait_node.abandoned = __LT_SPINLOCK_INIT;
     wait_node.next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -451,7 +451,7 @@
       if (self == NULL)
 	self = thread_self();
 
-      p_wait_node->abandoned = 0;
+      p_wait_node->abandoned = __LT_SPINLOCK_INIT;
       p_wait_node->next = (struct wait_node *) lock->__status;
       p_wait_node->thr = self;
       lock->__status = (long) p_wait_node;
@@ -474,7 +474,7 @@
       p_wait_node->thr = self;
       newstatus = (long) p_wait_node;
     }
-    p_wait_node->abandoned = 0;
+    p_wait_node->abandoned = __LT_SPINLOCK_INIT;
     p_wait_node->next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -574,7 +574,7 @@
     while (p_node != (struct wait_node *) 1) {
       int prio;
 
-      if (p_node->abandoned) {
+      if (lock_held(&p_node->abandoned)) {
 	/* Remove abandoned node. */
 #if defined TEST_FOR_COMPARE_AND_SWAP
 	if (!__pthread_has_cas)
@@ -662,7 +662,7 @@
 #if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP
 
 int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                               int * spinlock)
+                               __atomic_lock_t * spinlock)
 {
   int res;
 
@@ -699,7 +699,7 @@
    - When nanosleep() returns, we try again, doing MAX_SPIN_COUNT
      sched_yield(), then sleeping again if needed. */
 
-static void __pthread_acquire(int * spinlock)
+static void __pthread_acquire(__atomic_lock_t * spinlock)	
 {
   int cnt = 0;
   struct timespec tm;
diff -urN glibc-2.3.1.orig/linuxthreads/spinlock.h glibc-2.3.1/linuxthreads/spinlock.h
--- glibc-2.3.1.orig/linuxthreads/spinlock.h	2001-05-24 19:36:35.000000000 -0400
+++ glibc-2.3.1/linuxthreads/spinlock.h	2003-01-15 18:24:36.000000000 -0500
@@ -33,14 +33,28 @@
 #endif
 #endif
 
+/* Define lock_held for all arches that don't need a modified copy. */
+#ifndef __LT_INITIALIZER_NOT_ZERO
+# define lock_held(p) *(p)
+#endif
+
+/* Initliazers for possibly complex structures */
+#ifdef __LT_INITIALIZER_NOT_ZERO
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME = __LT_SPINLOCK_ALT_INIT
+#else
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME
+#endif
+
 #if defined(TEST_FOR_COMPARE_AND_SWAP)
 
 extern int __pthread_has_cas;
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   if (__builtin_expect (__pthread_has_cas, 1))
     return __compare_and_swap(ptr, oldval, newval);
@@ -58,7 +72,7 @@
 
 static inline int
 compare_and_swap_with_release_semantics (long * ptr, long oldval,
-					 long newval, int * spinlock)
+					 long newval, __atomic_lock_t * spinlock)
 {
   return __compare_and_swap_with_release_semantics (ptr, oldval,
 						    newval);
@@ -67,7 +81,7 @@
 #endif
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __compare_and_swap(ptr, oldval, newval);
 }
@@ -75,10 +89,10 @@
 #else
 
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __pthread_compare_and_swap(ptr, oldval, newval, spinlock);
 }
diff -u -p -r1.95 manager.c
--- libc/linuxthreads/manager.c	12 Aug 2003 03:40:45 -0000	1.95
+++ libc/linuxthreads/manager.c	6 Oct 2003 14:50:08 -0000
@@ -70,8 +70,13 @@ static pthread_descr manager_thread;
 #else
 static inline pthread_descr thread_segment(int seg)
 {
+# ifdef _STACK_GROWS_UP
+  return (pthread_descr)(THREAD_STACK_START_ADDRESS + (seg - 1) * STACK_SIZE)
+         + 1;
+# else
   return (pthread_descr)(THREAD_STACK_START_ADDRESS - (seg - 1) * STACK_SIZE)
          - 1;
+# endif
 }
 #endif
 


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libc-alpha,

2. Linuxthreads sysdep changes. 

This patch represents the minor changes required in linuxthreads sysdeps to
accomodate for hppa's special lock requirements (e.g. A structure instead of
an integer).

The changes are minor and require that __LT_SPINLOCK_INIT no longer be used in
a macro comparison since it's now a structure. A different define
(__LT_INITIALIZER_NOT_ZERO) is used to indicate an architecture that does not 
initialize a lock to zero.

Cheers,
Carlos.

===
 linuxthreads/sysdeps/pthread/bits/libc-lock.h    |    6 +++---
 linuxthreads/sysdeps/pthread/bits/pthreadtypes.h |    8 +++++---
 2 files changed, 8 insertions(+), 6 deletions(-)
===

2003-10-04  Carlos O'Donell <carlos@baldric.uwo.ca>

	* linuxthreads/sysdeps/pthread/bits/libc-lock.h:
	Use __LT_INITIALIZER_NOT_ZERO.
	* linuxthreads/sysdeps/pthread/bits/pthreadtypes.h:
	spinlock in struct _pthread_fastlock is __atomic_lock_t.

diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/libc-lock.h glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/libc-lock.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/libc-lock.h	2003-01-15 12:58:35.000000000 -0500
+++ glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/libc-lock.h	2003-01-15 18:24:36.000000000 -0500
@@ -71,12 +71,12 @@
    initialized locks must be set to one due to the lack of normal
    atomic operations.) */
 
-#if __LT_SPINLOCK_INIT == 0
+#ifdef __LT_INITIALIZER_NOT_ZERO
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME;
+  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
 #else
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
+  CLASS __libc_lock_t NAME;
 #endif
 
 #define __libc_rwlock_define_initialized(CLASS,NAME) \
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	2003-01-15 12:58:35.000000000 -0500
+++ glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	2003-01-15 18:24:36.000000000 -0500
@@ -22,12 +22,14 @@
 #define __need_schedparam
 #include <bits/sched.h>
 
+typedef int __atomic_lock_t;
+
 /* Fast locks (not abstract because mutexes and conditions aren't abstract). */
 struct _pthread_fastlock
 {
-  long int __status;   /* "Free" or "taken" or head of waiting list */
-  int __spinlock;      /* Used by compare_and_swap emulation. Also,
-			  adaptive SMP lock stores spin count here. */
+  long int __status;		/* "Free" or "taken" or head of waiting list */
+  __atomic_lock_t __spinlock;	/* Used by compare_and_swap emulation. Also,
+				   adaptive SMP lock stores spin count here. */
 };
 
 #ifndef _PTHREAD_DESCR_DEFINED


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libc-alpha,

3. Linuxthreads changes for HPPA.

The following are the architecture specific changes to implement linuxthreads 
on hppa. These patches have been thoroughly tested in 2.3.1 and forward ported 
to the current cvs tree. NTPL and TLS are next on the plate for HPPA. 

Cheers,
Carlos.

===
 linuxthreads/sysdeps/hppa/pspinlock.c                     |   29 ++++------
 linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h |   22 +++++--
 2 files changed, 30 insertions(+), 21 deletions(-)
===

2003-10-04  Carlos O'Donell <carlos@baldric.uwo.ca>

	* linuxthreads/sysdeps/hppa/pspinlock.c
	(__pthread_spin_lock): Use __ldcw_align and __ldcw.
	(__pthread_spin_trylock): Likewise.
	(__pthread_spin_unlock): Use __ldcw_align.
	(__pthread_spin_init): Likewise.
	* linuxthreads/sysdeps/hppa/pt-machine.h
	(THREAD_SELF): New.
	(INIT_THREAD_SELF): New.
	(__ldcw): New.
	(__ldcw_align): New.
	(__load_and_clear): New.
	(testandset): New.
	(lock_held): New.
	* linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h: 
	New file.
	* linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h:
	Defined changed to match struct __atomic_lock_t.

diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pspinlock.c glibc-2.3.1/linuxthreads/sysdeps/hppa/pspinlock.c
--- glibc-2.3.1.orig/linuxthreads/sysdeps/hppa/pspinlock.c	2002-08-26 18:39:51.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/hppa/pspinlock.c	2003-01-15 18:26:51.000000000 -0500
@@ -24,15 +24,12 @@
 int
 __pthread_spin_lock (pthread_spinlock_t *lock)
 {
-  unsigned int val;
+	volatile unsigned int *addr = __ldcw_align (lock);
+	
+	while (__ldcw (addr) == 0)
+		while (*addr == 0) ;
 
-  do
-    asm volatile ("ldcw %1,%0"
-		  : "=r" (val), "=m" (*lock)
-		  : "m" (*lock));
-  while (!val);
-
-  return 0;
+	return 0;
 }
 weak_alias (__pthread_spin_lock, pthread_spin_lock)
 
@@ -40,13 +37,9 @@
 int
 __pthread_spin_trylock (pthread_spinlock_t *lock)
 {
-  unsigned int val;
-
-  asm volatile ("ldcw %1,%0"
-		: "=r" (val), "=m" (*lock)
-		: "m" (*lock));
+	volatile unsigned int *a = __ldcw_align (lock);
 
-  return val ? 0 : EBUSY;
+	return __ldcw (a) ? 0 : EBUSY;
 }
 weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
 
@@ -54,7 +47,9 @@
 int
 __pthread_spin_unlock (pthread_spinlock_t *lock)
 {
-  *lock = 1;
+  volatile unsigned int *a = __ldcw_align (lock);
+
+  *a = 1;
   return 0;
 }
 weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
@@ -66,7 +61,9 @@
   /* We can ignore the `pshared' parameter.  Since we are busy-waiting
      all processes which can access the memory location `lock' points
      to can use the spinlock.  */
-  *lock = 1;
+  volatile unsigned int *a = __ldcw_align (lock);
+
+  *a = 1;
   return 0;
 }
 weak_alias (__pthread_spin_init, pthread_spin_init)
diff -u -p -r1.6 pt-machine.h
--- libc/linuxthreads/sysdeps/hppa/pt-machine.h	31 Jul 2003 19:15:42 -0000	1.6
+++ libc/linuxthreads/sysdeps/hppa/pt-machine.h	5 Aug 2003 19:58:59 -0000
@@ -22,41 +22,97 @@
 #ifndef _PT_MACHINE_H
 #define _PT_MACHINE_H   1
 
+#include <sys/types.h>
 #include <bits/initspin.h>
 
 #ifndef PT_EI
 # define PT_EI extern inline __attribute__ ((always_inline))
 #endif
 
-extern long int testandset (int *spinlock);
-extern int __compare_and_swap (long int *p, long int oldval, long int newval);
+extern inline long int testandset (__atomic_lock_t *spinlock);
+extern inline int __compare_and_swap (long int *p, long int oldval, long int newval);
+extern inline int lock_held (__atomic_lock_t *spinlock); 
+extern inline int __load_and_clear (__atomic_lock_t *spinlock);
 
 /* Get some notion of the current stack.  Need not be exactly the top
    of the stack, just something somewhere in the current frame.  */
 #define CURRENT_STACK_FRAME  stack_pointer
 register char * stack_pointer __asm__ ("%r30");
 
+/* Get/Set thread-specific pointer.  We have to call into the kernel to
+ * modify it, but we can read it in user mode.  */
+
+#define THREAD_SELF __get_cr27()
+
+static inline struct _pthread_descr_struct * __get_cr27(void)
+{
+	long cr27;
+	asm("mfctl %%cr27, %0" : "=r" (cr27) : );
+	return (struct _pthread_descr_struct *) cr27;
+}
+
+#define INIT_THREAD_SELF(descr, nr) __set_cr27(descr)
+
+static inline void __set_cr27(struct _pthread_descr_struct * cr27)
+{
+	asm(
+		"ble	0xe0(%%sr2, %%r0)\n\t"
+		"copy	%0, %%r26"
+	 : : "r" (cr27) : "r26" );
+}
+
+/* We want the OS to assign stack addresses.  */
+#define FLOATING_STACKS	1
+#define ARCH_STACK_MAX_SIZE	8*1024*1024
 
 /* The hppa only has one atomic read and modify memory operation,
    load and clear, so hppa spinlocks must use zero to signify that
-   someone is holding the lock.  */
+   someone is holding the lock.  The address used for the ldcw
+   semaphore must be 16-byte aligned.  */
+#define __ldcw(a) ({ \
+  unsigned int __ret;							\
+  __asm__ __volatile__("ldcw 0(%2),%0"					\
+                      : "=r" (__ret), "=m" (*(a)) : "r" (a));		\
+  __ret;								\
+})
+
+/* Because malloc only guarantees 8-byte alignment for malloc'd data,
+   and GCC only guarantees 8-byte alignment for stack locals, we can't
+   be assured of 16-byte alignment for atomic lock data even if we
+   specify "__attribute ((aligned(16)))" in the type declaration.  So,
+   we use a struct containing an array of four ints for the atomic lock
+   type and dynamically select the 16-byte aligned int from the array
+   for the semaphore.  */
+#define __PA_LDCW_ALIGNMENT 16
+#define __ldcw_align(a) ({ \
+  volatile unsigned int __ret = (unsigned int) a;			\
+  if ((__ret & ~(__PA_LDCW_ALIGNMENT - 1)) < (unsigned int) a)		\
+    __ret = (__ret & ~(__PA_LDCW_ALIGNMENT - 1)) + __PA_LDCW_ALIGNMENT; \
+  (unsigned int *) __ret;						\
+})
 
-#define xstr(s) str(s)
-#define str(s) #s
 /* Spinlock implementation; required.  */
-PT_EI long int
-testandset (int *spinlock)
+PT_EI int
+__load_and_clear (__atomic_lock_t *spinlock)
 {
-  int ret;
+  volatile unsigned int *a = __ldcw_align (spinlock);
 
-  __asm__ __volatile__(
-       "ldcw 0(%2),%0"
-       : "=r"(ret), "=m"(*spinlock)
-       : "r"(spinlock));
+  return __ldcw (a);
+}
 
-  return ret == 0;
+/* Emulate testandset */
+PT_EI long int
+testandset (__atomic_lock_t *spinlock)
+{
+  return (__load_and_clear(spinlock) == 0);
 }
-#undef str
-#undef xstr
 
+PT_EI int
+lock_held (__atomic_lock_t *spinlock)
+{
+  volatile unsigned int *a = __ldcw_align (spinlock);
+
+  return *a == 0;
+}
+		
 #endif /* pt-machine.h */
--- libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h	2003-04-26 14:40:04.000000000 -0400
@@ -0,0 +1,160 @@
+/* Linuxthreads - a simple clone()-based implementation of Posix        */
+/* threads for Linux.                                                   */
+/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr)              */
+/*                                                                      */
+/* This program is free software; you can redistribute it and/or        */
+/* modify it under the terms of the GNU Library General Public License  */
+/* as published by the Free Software Foundation; either version 2       */
+/* of the License, or (at your option) any later version.               */
+/*                                                                      */
+/* This program is distributed in the hope that it will be useful,      */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of       */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        */
+/* GNU Library General Public License for more details.                 */
+
+#if !defined _BITS_TYPES_H && !defined _PTHREAD_H
+# error "Never include <bits/pthreadtypes.h> directly; use <sys/types.h> instead."
+#endif
+
+#ifndef _BITS_PTHREADTYPES_H
+#define _BITS_PTHREADTYPES_H	1
+
+#define __need_schedparam
+#include <bits/sched.h>
+
+/* We need 128-bit alignment for the ldcw semaphore.  At most, we are
+   assured of 64-bit alignment for stack locals and malloc'd data.  Thus,
+   we use a struct with four ints for the atomic lock type.  The locking
+   code will figure out which of the four to use for the ldcw semaphore.  */
+typedef volatile struct {
+  int lock[4];
+} __attribute__ ((aligned(16))) __atomic_lock_t;
+
+/* Fast locks (not abstract because mutexes and conditions aren't abstract). */
+struct _pthread_fastlock
+{
+  long int __status;		/* "Free" or "taken" or head of waiting list */
+  __atomic_lock_t __spinlock;	/* Used by compare_and_swap emulation.  Also,
+				   adaptive SMP lock stores spin count here. */
+};
+
+#ifndef _PTHREAD_DESCR_DEFINED
+/* Thread descriptors */
+typedef struct _pthread_descr_struct *_pthread_descr;
+# define _PTHREAD_DESCR_DEFINED
+#endif
+
+
+/* Attributes for threads.  */
+typedef struct __pthread_attr_s
+{
+  int __detachstate;
+  int __schedpolicy;
+  struct __sched_param __schedparam;
+  int __inheritsched;
+  int __scope;
+  size_t __guardsize;
+  int __stackaddr_set;
+  void *__stackaddr;
+  size_t __stacksize;
+} pthread_attr_t;
+
+
+/* Conditions (not abstract because of PTHREAD_COND_INITIALIZER */
+
+#ifdef __GLIBC_HAVE_LONG_LONG
+__extension__ typedef long long __pthread_cond_align_t;
+#else
+typedef long __pthread_cond_align_t;
+#endif
+
+typedef struct
+{
+  struct _pthread_fastlock __c_lock; /* Protect against concurrent access */
+  _pthread_descr __c_waiting;        /* Threads waiting on this condition */
+  char __padding[48 - sizeof (struct _pthread_fastlock)
+		 - sizeof (_pthread_descr) - sizeof (__pthread_cond_align_t)];
+  __pthread_cond_align_t __align;
+} pthread_cond_t;
+
+
+/* Attribute for conditionally variables.  */
+typedef struct
+{
+  int __dummy;
+} pthread_condattr_t;
+
+/* Keys for thread-specific data */
+typedef unsigned int pthread_key_t;
+
+
+/* Mutexes (not abstract because of PTHREAD_MUTEX_INITIALIZER).  */
+/* (The layout is unnatural to maintain binary compatibility
+    with earlier releases of LinuxThreads.) */
+typedef struct
+{
+  int __m_reserved;               /* Reserved for future use */
+  int __m_count;                  /* Depth of recursive locking */
+  _pthread_descr __m_owner;       /* Owner thread (if recursive or errcheck) */
+  int __m_kind;                   /* Mutex kind: fast, recursive or errcheck */
+  struct _pthread_fastlock __m_lock; /* Underlying fast lock */
+} pthread_mutex_t;
+
+
+/* Attribute for mutex.  */
+typedef struct
+{
+  int __mutexkind;
+} pthread_mutexattr_t;
+
+
+/* Once-only execution */
+typedef int pthread_once_t;
+
+
+#ifdef __USE_UNIX98
+/* Read-write locks.  */
+typedef struct _pthread_rwlock_t
+{
+  struct _pthread_fastlock __rw_lock; /* Lock to guarantee mutual exclusion */
+  int __rw_readers;                   /* Number of readers */
+  _pthread_descr __rw_writer;         /* Identity of writer, or NULL if none */
+  _pthread_descr __rw_read_waiting;   /* Threads waiting for reading */
+  _pthread_descr __rw_write_waiting;  /* Threads waiting for writing */
+  int __rw_kind;                      /* Reader/Writer preference selection */
+  int __rw_pshared;                   /* Shared between processes or not */
+} pthread_rwlock_t;
+
+
+/* Attribute for read-write locks.  */
+typedef struct
+{
+  int __lockkind;
+  int __pshared;
+} pthread_rwlockattr_t;
+#endif
+
+#ifdef __USE_XOPEN2K
+/* POSIX spinlock data type.  */
+typedef __atomic_lock_t pthread_spinlock_t;
+
+/* POSIX barrier. */
+typedef struct {
+  struct _pthread_fastlock __ba_lock; /* Lock to guarantee mutual exclusion */
+  int __ba_required;                  /* Threads needed for completion */
+  int __ba_present;                   /* Threads waiting */
+  _pthread_descr __ba_waiting;        /* Queue of waiting threads */
+} pthread_barrier_t;
+
+/* barrier attribute */
+typedef struct {
+  int __pshared;
+} pthread_barrierattr_t;
+
+#endif
+
+
+/* Thread identifiers */
+typedef unsigned long int pthread_t;
+
+#endif	/* bits/pthreadtypes.h */
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h	2002-08-26 18:39:55.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h	2003-01-15 18:24:49.000000000 -0500
@@ -17,11 +17,23 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+/* Initialize global spinlocks without cast, generally macro wrapped */
+#define __LT_SPINLOCK_ALT_INIT { { 1, 1, 1, 1, } }
+
 /* Initial value of a spinlock.  PA-RISC only implements atomic load
    and clear so this must be non-zero. */
-#define __LT_SPINLOCK_INIT 1
+#define __LT_SPINLOCK_INIT ((__atomic_lock_t) __LT_SPINLOCK_ALT_INIT)
+
+/* Macros for lock initializers, not using the above definition.
+   The above definition is not used in the case that static initializers
+   use this value. */
+#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_ALT_INIT }
+#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_ALT_INIT }
+
+/* Used to initialize _pthread_fastlock's in non-static case */
+#define __LOCK_ALT_INITIALIZER ((struct _pthread_fastlock){ 0, __LT_SPINLOCK_INIT })
+
+/* Tell the rest of the code that the initializer is non-zero without
+   explaining it's internal structure */
+#define __LT_INITIALIZER_NOT_ZERO
 
-/* Macros for lock initializers, using the above definition. */
-#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
-#define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
-#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT }


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libc-alpha,

Wrote up the changelogs, reviewed them, and then forgot I had a small
patch to commit for oldsemaphore. This goes in with the first patch 1/3
that defines the generic libc changes required for linuxthreads to work
on HPPA.

Cheers,
Carlos
===

2003-10-10  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* linuxthreads/oldsemaphore.c:	sem_spinlock in struct old_sem_t 
	is an __atomic_lock_t.

--- libc/linuxthreads/oldsemaphore.c	25 May 2001 07:38:39 -0000	1.11
+++ libc/linuxthreads/oldsemaphore.c	21 Apr 2003 23:53:24 -0000
@@ -31,7 +31,7 @@
 
 typedef struct {
     long int sem_status;
-    int sem_spinlock;
+    __atomic_lock_t sem_spinlock;
 } old_sem_t;
 
 extern int __old_sem_init (old_sem_t *__sem, int __pshared, unsigned int __value);


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Xref: news.gmane.org gmane.linux.ports.parisc:19784

libc-alpha,

Passes testsuite.

Cheers,
Carlos.
===

2003-10-10  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h: 
	New file.

--- libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h	2003-08-30 17:26:42.000000000 -0400
@@ -0,0 +1,190 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 2003.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+#ifndef __ASSEMBLER__
+# include <linuxthreads/internals.h>
+#endif
+
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
+
+# ifndef NO_ERROR
+#  define NO_ERROR -0x1000
+# endif
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args)				\
+  ENTRY (name)								\
+    SINGLE_THREAD_P					ASM_LINE_SEP	\
+    cmpib,<> 0,%ret0,Lpseudo_cancel			ASM_LINE_SEP	\
+    nop							ASM_LINE_SEP	\
+    DO_CALL(syscall_name, args)				ASM_LINE_SEP	\
+    /* DONE! */						ASM_LINE_SEP	\
+    bv 0(2)						ASM_LINE_SEP	\
+    nop							ASM_LINE_SEP	\
+  Lpseudo_cancel:					ASM_LINE_SEP	\
+    /* store return ptr */				ASM_LINE_SEP	\
+    stw %rp, -20(%sr0,%sp)				ASM_LINE_SEP	\
+    /* save syscall args */				ASM_LINE_SEP	\
+    PUSHARGS_##args /* MACRO */				ASM_LINE_SEP	\
+    STW_PIC						ASM_LINE_SEP	\
+    CENABLE /* FUNC CALL */				ASM_LINE_SEP	\
+    ldo 64(%sp), %sp					ASM_LINE_SEP	\
+    ldo -64(%sp), %sp					ASM_LINE_SEP	\
+    LDW_PIC						ASM_LINE_SEP	\
+    /* restore syscall args */				ASM_LINE_SEP	\
+    POPARGS_##args					ASM_LINE_SEP	\
+    /* save r4 in arg0 stack slot */			ASM_LINE_SEP	\
+    stw %r4, -36(%sr0,%sp)				ASM_LINE_SEP	\
+    /* save mask from cenable */			ASM_LINE_SEP	\
+    copy %ret0, %r4					ASM_LINE_SEP	\
+    ble 0x100(%sr2,%r0)					ASM_LINE_SEP    \
+    ldi SYS_ify (syscall_name), %r20			ASM_LINE_SEP	\
+    LDW_PIC						ASM_LINE_SEP	\
+    /* pass mask as arg0 to cdisable */			ASM_LINE_SEP	\
+    copy %r4, %r26					ASM_LINE_SEP	\
+    copy %ret0, %r4					ASM_LINE_SEP	\
+    CDISABLE						ASM_LINE_SEP	\
+    ldo 64(%sp), %sp					ASM_LINE_SEP	\
+    ldo -64(%sp), %sp					ASM_LINE_SEP	\
+    LDW_PIC						ASM_LINE_SEP	\
+    /* compare error */					ASM_LINE_SEP	\
+    ldi NO_ERROR,%r1					ASM_LINE_SEP	\
+    /* branch if no error */				ASM_LINE_SEP	\
+    cmpb,>>=,n %r1,%r4,Lpre_end				ASM_LINE_SEP	\
+    nop							ASM_LINE_SEP	\
+    SYSCALL_ERROR_HANDLER				ASM_LINE_SEP	\
+    ldo 64(%sp), %sp					ASM_LINE_SEP	\
+    ldo -64(%sp), %sp					ASM_LINE_SEP	\
+    /* No need to LDW_PIC */				ASM_LINE_SEP	\
+    /* make syscall res value positive */		ASM_LINE_SEP	\
+    sub %r0, %r4, %r4					ASM_LINE_SEP	\
+    /* store into errno location */			ASM_LINE_SEP	\
+    stw %r4, 0(%sr0,%ret0)				ASM_LINE_SEP	\
+    /* return -1 */					ASM_LINE_SEP	\
+    ldo -1(%r0), %ret0					ASM_LINE_SEP	\
+  Lpre_end:						ASM_LINE_SEP	\
+    ldw -20(%sr0,%sp), %rp             			ASM_LINE_SEP	\
+    /* No need to LDW_PIC */				ASM_LINE_SEP	\
+    ldw -36(%sr0,%sp), %r4				ASM_LINE_SEP
+
+/* Save arguments into our frame */
+# define PUSHARGS_0	/* nothing to do */
+# define PUSHARGS_1	PUSHARGS_0 stw %r26, -36(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_2	PUSHARGS_1 stw %r25, -40(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_3	PUSHARGS_2 stw %r24, -44(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_4	PUSHARGS_3 stw %r23, -48(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_5	PUSHARGS_4 /* Args are on the stack... */
+# define PUSHARGS_6	PUSHARGS_5
+
+/* Bring them back from the stack */
+# define POPARGS_0	/* nothing to do */
+# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	ASM_LINE_SEP
+# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	ASM_LINE_SEP
+# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	ASM_LINE_SEP
+# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	ASM_LINE_SEP
+# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	ASM_LINE_SEP
+# define POPARGS_6	POPARGS_5 ldw -54(%sr0,%sp), %r21	ASM_LINE_SEP
+
+# ifdef IS_IN_libpthread
+#  ifdef PIC
+#   define CENABLE .import __pthread_enable_asynccancel,code ASM_LINE_SEP \
+			bl __pthread_enable_asynccancel,%r2 ASM_LINE_SEP
+#   define CDISABLE .import __pthread_disable_asynccancel,code ASM_LINE_SEP \
+			bl __pthread_disable_asynccancel,%r2 ASM_LINE_SEP 
+#  else
+#   define CENABLE .import __pthread_enable_asynccancel,code ASM_LINE_SEP \
+			bl __pthread_enable_asynccancel,%r2 ASM_LINE_SEP
+#   define CDISABLE .import __pthread_disable_asynccancel,code ASM_LINE_SEP \
+			bl __pthread_disable_asynccancel,%r2 ASM_LINE_SEP 
+#  endif
+# elif !defined NOT_IN_libc
+#  ifdef PIC
+#   define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_SEP \
+			bl __libc_enable_asynccancel,%r2 ASM_LINE_SEP 
+#   define CDISABLE	.import __libc_disable_asynccancel,code ASM_LINE_SEP \
+			bl __libc_disable_asynccancel,%r2 ASM_LINE_SEP 
+#  else
+#   define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_SEP \
+			bl __libc_enable_asynccancel,%r2 ASM_LINE_SEP 
+#   define CDISABLE	.import __libc_disable_asynccancel,code ASM_LINE_SEP \
+			bl __libc_disable_asynccancel,%r2 ASM_LINE_SEP 
+#  endif
+# else
+#  ifdef PIC
+#   define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_SEP \
+			bl __librt_enable_asynccancel,%r2 ASM_LINE_SEP 
+#   define CDISABLE .import __librt_disable_asynccancel,code ASM_LINE_SEP \
+			bl __librt_disable_asynccancel,%r2 ASM_LINE_SEP 
+#  else
+#   define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_SEP \
+			bl __librt_enable_asynccancel,%r2 ASM_LINE_SEP 
+#   define CDISABLE .import __librt_disable_asynccancel,code ASM_LINE_SEP \
+			bl __librt_disable_asynccancel,%r2 ASM_LINE_SEP 
+#  endif
+# endif	
+
+/* p_header.multiple_threads is +12 from the pthread_descr struct start,
+   We could have called __get_cr27() but we really want less overhead */
+# define MULTIPLE_THREADS_OFFSET 0xC
+
+/* cr27 has been initialized to 0x0 by kernel */
+# define NO_THREAD_CR27 0x0
+			
+# ifdef IS_IN_libpthread
+#  define __local_multiple_threads __pthread_multiple_threads
+# elif !defined NOT_IN_libc
+#  define __local_multiple_threads __libc_multiple_threads
+# else
+#  define __local_multiple_threads __librt_multiple_threads
+# endif
+
+# ifndef __ASSEMBLER__
+ extern int __local_multiple_threads attribute_hidden;
+#  define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
+# else
+/* This ALT version requires newer kernel support */
+#  define SINGLE_THREAD_P_MFCTL						\
+	mfctl %cr27, %ret0					ASM_LINE_SEP	\
+	cmpib,= NO_THREAD_CR27,%ret0,Lstp			ASM_LINE_SEP	\
+	nop							ASM_LINE_SEP	\
+	ldw MULTIPLE_THREADS_OFFSET(%sr0,%ret0),%ret0		ASM_LINE_SEP	\
+ Lstp:								ASM_LINE_SEP	
+#  ifdef PIC
+/* Slower version uses GOT to get value of __local_multiple_threads */
+#   define SINGLE_THREAD_P							\
+	addil LT%__local_multiple_threads, %r19			ASM_LINE_SEP	\
+	ldw RT%__local_multiple_threads(%sr0,%r1), %ret0	ASM_LINE_SEP	\
+	ldw 0(%sr0,%ret0), %ret0 				ASM_LINE_SEP
+#  else
+  /* Slow non-pic version using DP */
+#   define SINGLE_THREAD_P								\
+	addil LR%__local_multiple_threads-$global$,%r27  		ASM_LINE_SEP	\
+	ldw RR%__local_multiple_threads-$global$(%sr0,%r1),%ret0	ASM_LINE_SEP
+#  endif	
+# endif
+#elif !defined __ASSEMBLER__
+
+/* This code should never be used but we define it anyhow.  */
+# define SINGLE_THREAD_P (1)
+
+#endif
+/* !defined NOT_IN_libc || defined IS_IN_libpthread */
+
+


From - Thu Nov 08 21:29:33 2018
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [PATCH] Remove 16-byte alignment for hppa
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Xref: news.gmane.org gmane.linux.ports.parisc:19785

libc-alpha,

We no longer require malloc alignment to be 16. Our lock implementation
is flexible enough that this option is now irrelevant.

Cheers,
Carlos.
===

2003-10-10  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* sysdeps/hppa/Makefile: Remove -DMALLOC_ALIGNMENT=16.

--- glibc-2.3.1/sysdeps/hppa/Makefile	2003-01-20 23:47:12.000000000 -0500
+++ glibc-2.3.1/sysdeps/hppa/Makefile	2003-01-20 23:47:19.000000000 -0500
@@ -22,10 +22,6 @@
 # CFLAGS-.os += -ffunction-sections
 LDFLAGS-c_pic.os += -Wl,--unique=.text*
 
-ifeq ($(subdir),malloc)
-CFLAGS-malloc.c += -DMALLOC_ALIGNMENT=16
-endif

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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] evolution (1.4.5-1) do_page_fault?
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Xref: news.gmane.org gmane.linux.ports.parisc:19786

Hi all,

The new evolution crash on my c110 [debian unstable] (even though I test 
successfully a previous release on my b2k) with a kernel 2.6test7pa5.

do_page_fault() pid=3917 command='evolution' type=7 address=0x413627db
vm_start = 0x41332000, vm_end = 0x413b3000

    YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 413c6bf0 41383947 00690d80
r04-07  413c7bf0 00000000 00000001 00000000
r08-11  0000000c 0030c7a8 41288844 0000007e
r12-15  001c622c 002d7830 000009e4 0013a078
r16-19  08000000 faf03260 0000003a 413c7bf0
r20-23  00154d1c 413627c0 00154c90 00002007
r24-27  00101006 00154c90 00690d80 000c1478
r28-31  00000001 00000019 faf03980 4185c657
sr0-3   00000000 00000088 00000000 00000088
sr4-7   00000088 00000088 00000088 00000088

IASQ: 00000088 00000088 IAOQ: 413627db 413627df
IIR: 687c0048    ISR: 00000088  IOR: 00690da4
CPU:        0   CR30: 10bd4000 CR31: 103cb000
ORIG_R28: 41a130a0
IAOQ[0]: 0x413627db
IAOQ[1]: 0x413627df
RP(r2): 0x41383947
     _______________________________
    < Your System ate a SPARC! Gah! >
     -------------------------------
            \   ^__^
             \  (xx)\_______
                (__)\       )\/\
                 U  ||----w |
                    ||     ||

I put the question because very surprised by this message?

Thanks for advise,
   Joel





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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] [PATCH] hppa machine-malloc.h
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Hi Carlos,

Thanks for all.
Just a question: for testing goal only are you going to update p-l glibc 
cvs or put all those material somewhere (eg ftp.p-l.org)?

Thanks again,
    Joel

Carlos O'Donell wrote:

>libc-alpha,
>
>Machine specific hppa malloc locking functions.
>
>Thanks to Wolfram for making the required changes, and reminding me to
>submit my patches ;)
>
>Cheers,
>Carlos.
>===
> linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h |   73 ++++++++++
> 1 files changed, 73 insertions(+)
>===
>
>2003-10-10  Carlos O'Donell  <carlos@baldric.uwo.ca>
>
>	* linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h: New.
>
>--- libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h.orig	1969-12-31 19:00:00.000000000 -0500
>+++ libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h	2003-10-04 12:52:09.000000000 -0400
>@@ -0,0 +1,73 @@
>+/* HP-PARISC macro definitions for mutexes, thread-specific data 
>+   and parameters for malloc.
>+   Copyright (C) 2003 Free Software Foundation, Inc.
>+   This file is part of the GNU C Library.
>+   Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 2003.
>+   
>+   The GNU C Library is free software; you can redistribute it and/or
>+   modify it under the terms of the GNU Lesser General Public
>+   License as published by the Free Software Foundation; either
>+   version 2.1 of the License, or (at your option) any later version.
>+
>+   The GNU C Library is distributed in the hope that it will be useful,
>+   but WITHOUT ANY WARRANTY; without even the implied warranty of
>+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
>+   Lesser General Public License for more details.
>+
>+   You should have received a copy of the GNU Lesser General Public
>+   License along with the GNU C Library; if not, write to the Free
>+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
>+   02111-1307 USA.  */
>+
>+#ifndef _MALLOC_MACHINE_H
>+#define _MALLOC_MACHINE_H
>+
>+#undef thread_atfork_static
>+
>+#include <atomic.h>
>+#include <bits/libc-lock.h>
>+
>+__libc_lock_define (typedef, mutex_t)
>+
>+/* Since our lock structure does not tolerate being initialized to zero, we must
>+   modify the standard function calls made by malloc */
>+#  define mutex_init(m)		\
>+	__libc_maybe_call (__pthread_mutex_init, (m, NULL), \
>+		(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT),(*(int *)(m))) )
>+#  define mutex_lock(m)		\
>+	__libc_maybe_call (__pthread_mutex_lock, (m), \
>+			(__load_and_clear(&((m)->__m_lock.__spinlock)), 0))
>+#  define mutex_trylock(m)	\
>+	__libc_maybe_call (__pthread_mutex_trylock, (m), \
>+			(*(int *)(m) ? 1 : (__load_and_clear(&((m)->__m_lock.__spinlock)), 0)))
>+#  define mutex_unlock(m)	\
>+	__libc_maybe_call (__pthread_mutex_unlock, (m), \
>+			(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT), (*(int *)(m))) )
>+	
>+/* This is defined by newer gcc version unique for each module.  */
>+extern void *__dso_handle __attribute__ ((__weak__));
>+
>+#include <fork.h>
>+
>+#ifdef SHARED
>+# define thread_atfork(prepare, parent, child) \
>+   __register_atfork (prepare, parent, child, __dso_handle)
>+#else
>+# define thread_atfork(prepare, parent, child) \
>+   __register_atfork (prepare, parent, child,				      \
>+		      &__dso_handle == NULL ? NULL : __dso_handle)
>+#endif
>+
>+/* thread specific data for glibc */
>+
>+#include <bits/libc-tsd.h>
>+
>+typedef int tsd_key_t[1];	/* no key data structure, libc magic does it */
>+__libc_tsd_define (static, MALLOC)	/* declaration/common definition */
>+#define tsd_key_create(key, destr)	((void) (key))
>+#define tsd_setspecific(key, data)	__libc_tsd_set (MALLOC, (data))
>+#define tsd_getspecific(key, vptr)	((vptr) = __libc_tsd_get (MALLOC))
>+
>+#include <sysdeps/generic/malloc-machine.h>
>+
>+#endif /* !defined(_MALLOC_MACHINE_H) */
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>  
>




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Subject: [parisc-linux] [Fwd: Re: Repair of BM200-3601]
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The Mail to "Ed J.M. Veling" was bounced by a BLACKHOLE LIST filter.
So I resend it to PA-RISC group !

Bye
Christoph

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at

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>From - Fri Oct 10 23:57:34 2003
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Sorry to hear that .... I also suffer, if my "old machines"
have troubles ....

Hello,
do we speak here about the same type of power supply, then I may
help you perhaps.

Ths small SIMM-lile module on the 60-pin conntector side, is a
supervision module generating the "emergency stop" signal to
the power supply, if there is a problem. Further it generates the
the RESET signal for the machine (or better the POWER GOOD signal).

As I remember the schematics, there are 6 reasons for switching
off the power supply:
Over 5V, 12V, under -5, -12V, over current and over temperature.
You have to find out, which is true here.

Check the type, and reply if you need further help ....
Christoph



Ed J.M. Veling wrote:
> Dear Christoph,
> 
> With interest I have read your contribution w.r.t. the repair of the
> BM200-3601 power supply.
> We have comparable problems: 2 power supplies have worked for 11 years and
> then suddenly
> almost at the same time they stopped. It is possible to restart these UNIX
> workstations
> but after some time, sometimes one hour, sometimes 2 days later, they stop
> again.
> By the way, these workstations are located in a air-conditioned room.
> So, I was very happy to read your suggestion to put some resistance into the
> power supply.
> At our department,  a technical person has done this repairment. Last tuesday
> I restarted the workstation
> and I was very happy to see it operating. However, after two days, I was quite
> disappointed: again,
> the workstation was dead.
> Now, you are my last resort. Do you have maybe another suggestion to keep
> these power supplies
> alive ?
> I thank you very well in advance.
> Yours sincerely,
> 
> Ed Veling
> 
> 
> 
> --
> Dr. E.J.M. Veling,
> Delft University of Technology,
> Faculty of Civil Engineering and Geosciences,
> Department of Water Management,
> Section for Hydrology and Ecology,
> Stevinweg 1,   NL-2628 CN  Delft, The Netherlands,
> P.O. Box 5048, NL-2600 GA  Delft, The Netherlands,
> phone:  (+31)152783156 ((+31)152785074),
> fax:    (+31)152785915,
> room:   4.89,
> e-mail: Ed.Veling@CiTG.TUDelft.nl
> URL:    http://hydrology.citg.tudelft.nl
> 
> 
> 
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at


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Le vendredi, 10 oct 2003, =E0 21:47 Europe/Paris, Walker White a =E9crit =
:

> Okay.  Almost done here.  That swap trick DID work.  It just did not=20=

> read the K200 manual to see that HP boots from the end of the SCSI=20
> chain and not the beginning.  So everything is loaded and it boots.
>
> However my boot crashes right after loading cron.  This is possibly a=20=

> result of the fact that some of my packages came from the debian CD=20
> and not the netinstall.  Here is the error:
>
> ***
> Starting periodic command scheduler: cron
> /bin/sh: /dev/ttyB0: No such device
> /bin/sh: /dev/ttyB0: No such device
> /bin/sh: /dev/ttyB0: No such device
> /bin/sh: /dev/ttyB0: No such device
> /bin/sh: /dev/ttyB0: No such device
> /bin/sh: /dev/ttyB0: No such device
> /bin/sh: /dev/ttyB0: No such device
> /bin/sh: /dev/ttyB0: No such device
> /bin/sh: /dev/ttyB0: No such device
> /bin/sh: /dev/ttyB0: No such device
> INIT: Id "T0" respawning to fast: disabled for 5 minutes
> INIT: no more processes left in this runlevel
>
> The machine then sleeps for 5 minutes and repeats the error on wake-up=20=

> (so I never get a login).
>
> Using the installation CD, I have opened a shell to verify that there=20=

> is indeed a /dev/ttyB0.  Is this error because I got packages from a=20=

> source other than the netinst CD or is there something else going on=20=

> here?

Looks like something is screwed because of mixed package (most likely=20
makedev stuff).
My best recommandation would be to upgrade at least to Debian testing=20
(sarge).
To do so, you have to change /etc/apt/sources.list, and run apt-get=20
update; apt-get dist-upgrade
Another guess: was the kernel package installed from the netinst or=20
from Debian 3.0?
If the latter, then /dev/ttyB0 might be there but not related to any=20
kernel driver (since 3.0 doesn't handle /dev/ttyB0).

The hangs you experienced during install are kinda weird, i hope that=20
our ISOs aren't corrupted, i'll try to check that at some point.

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=




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Joel Soete wrote:
> Hi pa,
> 
> I 'make defconfig' then 'make vmlinux' on a fresh cvs tree and obtain a 
> vmlinux :)
> 
> As working on a c110 I just forget to change ccio-dma.c parameter and so 
> just do this change and 'make vmlinux'.
> This failled:
> hpalin:/Debian-apt/SRC/linux-2.6.0-test7-pa5# make vmlinux
> Making user->usr/include/linux 
> symlink
> ln: `include/user': File exists
> make: *** [include/user] Error 1
> 
> thanks in advance,
>    joel
> 
hmm

Even after a distclean, I got same message when I retry 'make vmlinux'?

Finaly, just remove manually include/user and include/user-asm help.

Cheers,
	Joel



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May be the fix should be:
--- Makefile.orig	2003-10-12 13:50:43.000000000 +0200
+++ Makefile	2003-10-12 13:57:57.000000000 +0200
@@ -627,8 +627,8 @@
  # Can't rely on distributing these syminks as patches
  include/user:
  	@echo '  Making user->usr/include/linux symlink'
-	@ln -s ../usr/include/linux $@
-	@ln -s ../usr/include/asm-$(ARCH) include/user-asm
+	@ln -fsn ../usr/include/linux $@
+	@ln -fsn ../usr/include/asm-$(ARCH) include/user-asm

  # 	Split autoconf.h into include/linux/config/*

hth,
	Joel

Joel Soete wrote:
> 
> 
> Joel Soete wrote:
> 
>> Hi pa,
>>
>> I 'make defconfig' then 'make vmlinux' on a fresh cvs tree and obtain 
>> a vmlinux :)
>>
>> As working on a c110 I just forget to change ccio-dma.c parameter and 
>> so just do this change and 'make vmlinux'.
>> This failled:
>> hpalin:/Debian-apt/SRC/linux-2.6.0-test7-pa5# make vmlinux
>> Making user->usr/include/linux symlink
>> ln: `include/user': File exists
>> make: *** [include/user] Error 1
>>
>> thanks in advance,
>>    joel
>>
> hmm
> 
> Even after a distclean, I got same message when I retry 'make vmlinux'?
> 
> Finaly, just remove manually include/user and include/user-asm help.
> 
> Cheers,
>     Joel
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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<body text=3D"#000000" link=3D"#000000" vlink=3D"#000000" alink=3D"#000000=
">
<div align=3D"center"><!-- confidential --><font size=3D"5" color=3D"#0000=
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  P<!-- peptide -->is<!-- plain -->s P<!-- flagstone -->art=
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 s<!-- buggy -->pyc<!-- breast -->ams, even fe<!-- =
staunch -->ma<!-- dillon -->le e<!-- diehard -->jacu<!-- =
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sunburnt -->ss p<!-- highboy -->ar<!-- humidistat -->ty on and =
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Subject: Re: [parisc-linux] traps.c 2.4 alignement [was: 2.6.0-test6-pa6 on
 b2k finaly crash]
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Hi Grant,

Grant Grundler wrote:
> On Sun, Oct 05, 2003 at 05:07:21PM +0000, Joel Soete wrote:
> 
>>hmm don't think if it's related but just in case:
>>I was just copying my kernel tree with 'tar cslpf - 
>>linux-2.6.0-test6-pa6 | ( cd Work ; tar xslpf -)' when
>>
>>Kernel panic: drivers/parisc/ccio-dma.c: ccio_alloc_range() I/O M.
> 
> 
> You ran out of mapping resources.
>         panic(__FILE__ ": %s() I/O MMU is out of mapping resources.\n",
> 	              __FUNCTION__);
> 
> 
>>I just retry same operation on the same system with same kernel but 
>>doesn't occurs a second time?
> 
> 
> Not surprising. The bitmap search will fail if everything gets
> mapped "sparsely" or we try to search for a large mapping (>32K, ie more
> than 8 pages) but can't find it. If this is repeatible problem, change
> 
> 	/* Ratio of Host MEM to IOV Space size */
> 	static unsigned long ccio_mem_ratio = 4;
> 
> in drivers/parisc/ccio-dma.c (2.6 kernel) to 2.
> 

Well the pb re-occurs but, as mentioned previously, it is difficult to 
reproduce the exact circumstance of this occurence?
So test this change of ccio_mem_ratio = 4 to 2 and seems to works better :)

> One patch would be welcome here: figure out a threshold when
> allocations for single pages should share an 8-page "chunk"
> (effectively one TLB entry).  E.g. differentiate between LAN
> and SCSI requests.  LAN typically wants 1 entry (1500 byte MTU)
> unless someone starts testing "Large Send" and is very "linear"
> in it's DMA behavior (one DMA stream at a time).  SCSI typically
> wants 64k/128k (16 or 32 entries), has lots of those, and any one
> of those could be the "next" DMA stream. ie thrashing the IO TLB
> is much more likely with SCSI than LAN and we should allocate
> entries differently based on that.
> 
> The patch might be something like:
> 	if ((pci_dev->class & MASK) == PCI_BASE_CLASS_NETWORK) {
> 	...
> 
> in the right places to use a different (and new?) search loop.
> 

Will try to understand and see what can i do.

Thanks again,
	Joel



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Hi all,

into parisc/kernel/pacache.S, i find this:
[...]
flush_tlb_all_local:
[...]
         rsm     PSW_SM_Q,%r0       /* Turn off Q bit to load iia queue */
         ldil    L%REAL_MODE_PSW, %r1
         ldo     R%REAL_MODE_PSW(%r1), %r1
         mtctl   %r1, %cr22
         mtctl   %r0, %cr17
         mtctl   %r0, %cr17
[...]

Why twice 'mtctl   %r0, %cr17'?

and also:
[...]
fitmanymiddle:                                  /* Loop if LOOP >= 2 */
         ADDIB>          -1,%r31,fitmanymiddle   /* Adjusted inner loop 
decr */
         pitlbe          0(%sr1,%r28)
         pitlbe,m        %arg1(%sr1,%r28)        /* Last pitlbe and addr 
adjust */

Typicaly the function name is flush_..., so why do we 'purge' here?

Thanks in advance for help,
	Joel



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Subject: Re: [parisc-linux] evolution (1.4.5-1) do_page_fault?
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On Fri, Oct 10, 2003 at 10:17:00PM +0000, Joel Soete wrote:
> Hi all,
> 
> The new evolution crash on my c110 [debian unstable] (even though I test 
> successfully a previous release on my b2k) with a kernel 2.6test7pa5.
> 
> do_page_fault() pid=3917 command='evolution' type=7 address=0x413627db
> vm_start = 0x41332000, vm_end = 0x413b3000
> 

Run it through a debugger. Try to find out what was at this address?

c.


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Hello Carlos,

I launch 'gbd evolution'
(gdb) run
to determine the new address in this env but failed before with message:
Program received signal SIG37, Real-time event 37.
0x4193c574 in malloc_set_state () from /lib/libc.so.6

what's your opinion?

Joel

Carlos O'Donell wrote:
> On Fri, Oct 10, 2003 at 10:17:00PM +0000, Joel Soete wrote:
> 
>>Hi all,
>>
>>The new evolution crash on my c110 [debian unstable] (even though I test 
>>successfully a previous release on my b2k) with a kernel 2.6test7pa5.
>>
>>do_page_fault() pid=3917 command='evolution' type=7 address=0x413627db
>>vm_start = 0x41332000, vm_end = 0x413b3000
>>
> 
> 
> Run it through a debugger. Try to find out what was at this address?
> 
> c.
> 



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On Sun, Oct 12, 2003 at 06:42:55PM +0000, Joel Soete wrote:
> Hello Carlos,
> 
> I launch 'gbd evolution'
> (gdb) run
> to determine the new address in this env but failed before with message:
> Program received signal SIG37, Real-time event 37.
> 0x4193c574 in malloc_set_state () from /lib/libc.so.6
> 
> what's your opinion?

That's libpthreads realtime singal mechanism working.
You need to set "handle all nostop" and "handle all pass" in gdb.

Then you can do the math with /proc/<pid>/maps and the dying address to
calculate the _real_ library offset and function symbolic name.

c.


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Subject: [parisc-linux] [PATCH] Sysdeps changes for hppa.
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libc-alpha,

Generic defines JUMPTARGET, so we must undefine it before setting it to
nothing in sysdeps/hppa/sysdep.h.

Secondly, there were a lot of missing macro's in
sysdep/unix/sysv/linux/hppa/sysdep.h, the second bit of the patch takes
care of defining those properly for hppa and cleans up the file itself
in a more logical layout.

The last patch makes sure that syscall in sysdep.c takes advantage of
all the fixes for PIC register bugs I had to track down.

Cheers,
Carlos.
===
 sysdeps/hppa/sysdep.h                 |    1 
 sysdeps/unix/sysv/linux/hppa/sysdep.h |  274 ++++++++--
 sysdeps/unix/sysv/linux/hppa/sysdep.c |   46 +
 3 files changed, 254 insertions(+), 67 deletions(-)
===

2003-10-12  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* sysdeps/hppa/sysdep.h: Undef JUMPTARGET before use.
	* sysdeps/unix/sysv/linux/hppa/sysdep.h:
	Define __NR_semtimedop for compat with old kernels,
	PSEUDO_ERRVAL, SYSCALL_ERROR_LABEL under all conditions,
	INTERNAL_SYSCALL_DECL, INTERNAL_SYSCALL_ERROR_P,
	INTERNAL_SYSCALL_ERRNO, INTERNAL_SYSCALL, and undef 
	JUMPTARGET before use.
	[PIC]: Save pic register around syscall.
	* sysdeps/unix/sysv/linux/hppa/sysdep.c (syscall): 
	Cleanup asm statment.

--- libc/sysdeps/hppa/sysdep.h	6 Jul 2001 04:55:51 -0000	1.3
+++ libc/sysdeps/hppa/sysdep.h	1 Apr 2003 06:15:35 -0000
@@ -70,6 +67,7 @@
 #define	PSEUDO_END(name)						      \
   END (name)
 
+#undef JUMPTARGET
 #define JUMPTARGET(name)	name
 #define SYSCALL_PIC_SETUP	/* Nothing.  */
diff -u -p -r1.7 sysdep.h
--- libc/sysdeps/unix/sysv/linux/hppa/sysdep.h	23 Mar 2003 19:42:22 -0000	1.7
+++ libc/sysdeps/unix/sysv/linux/hppa/sysdep.h	21 Sep 2003 19:24:57 -0000
@@ -31,6 +31,26 @@
 #undef SYS_ify
 #define SYS_ify(syscall_name)	(__NR_##syscall_name)
 
+/* Included for older kernels whose headers 
+   are missing the define  */ 
+#ifndef __NR_semtimedop
+# define __NR_semtimedop 228
+#endif
+
+# ifdef PIC
+/* WARNING: CANNOT BE USED IN A NOP! */
+#  define STW_PIC stw %r19, -32(%sr0, %sp) ASM_LINE_SEP
+#  define LDW_PIC ldw -32(%sr0, %sp), %r19 ASM_LINE_SEP
+#  define STW_ASM_PIC	"       copy %%r19, %%r4\n"
+#  define LDW_ASM_PIC	"       copy %%r4, %%r19\n"
+#  define USING_GR4	"%r4",
+# else
+#  define STW_PIC ASM_LINE_SEP
+#  define LDW_PIC ASM_LINE_SEP
+#  define STW_ASM_PIC	" \n"
+#  define LDW_ASM_PIC	" \n"
+#  define USING_GR4
+# endif
 
 #ifdef __ASSEMBLER__
 
@@ -77,20 +97,13 @@
 	.text					ASM_LINE_SEP	\
 	.export C_SYMBOL_NAME(name)		ASM_LINE_SEP	\
 	.type	C_SYMBOL_NAME(name),@function	ASM_LINE_SEP	\
-	C_LABEL(name)						\
-	CALL_MCOUNT
-
-#define ret \
-	bv 0(2)					ASM_LINE_SEP	\
-	nop
-
-#define ret_NOERRNO \
-	bv 0(2)					ASM_LINE_SEP	\
-	nop
+	C_LABEL(name)				ASM_LINE_SEP	\
+	CALL_MCOUNT				ASM_LINE_SEP
 
 #undef	END
-#define END(name)						\
-1:	.size	C_SYMBOL_NAME(name),1b-C_SYMBOL_NAME(name)
+#define END(name)							\
+1:							ASM_LINE_SEP	\
+.size	C_SYMBOL_NAME(name),1b-C_SYMBOL_NAME(name)	ASM_LINE_SEP	\
 
 /* If compiled for profiling, call `mcount' at the start of each function.  */
 /* No, don't bother.  gcc will put the call in for us.  */
@@ -110,27 +123,83 @@
 	nop
 */
 
-#define	PSEUDO(name, syscall_name, args)				      \
-  ENTRY (name)								      \
-  DO_CALL(syscall_name, args)					ASM_LINE_SEP  \
-  nop
+#define	PSEUDO(name, syscall_name, args)			\
+  ENTRY (name)							\
+  DO_CALL(syscall_name, args)			ASM_LINE_SEP	\
+  nop						ASM_LINE_SEP
+
+#define ret \
+	/* Return value set by ERRNO code */	ASM_LINE_SEP	\
+	bv 0(2)					ASM_LINE_SEP	\
+	nop					ASM_LINE_SEP
 
 #undef	PSEUDO_END
-#define	PSEUDO_END(name)						      \
+#define	PSEUDO_END(name)					\
   END (name)
 
-#define	PSEUDO_NOERRNO(name, syscall_name, args)			      \
-  ENTRY (name)								      \
-  DO_CALL(syscall_name, args)					ASM_LINE_SEP  \
-  nop
+/* We don't set the errno on the return from the syscall */
+#define	PSEUDO_NOERRNO(name, syscall_name, args)		\
+  ENTRY (name)							\
+  DO_CALL_NOERRNO(syscall_name, args)		ASM_LINE_SEP	\
+  nop						ASM_LINE_SEP
 
+#define ret_NOERRNO ret 
+  
 #undef	PSEUDO_END_NOERRNO
-#define	PSEUDO_END_NOERRNO(name)					      \
+#define	PSEUDO_END_NOERRNO(name)				\
   END (name)
 
+/* This has to return the error value */
+#undef  PSEUDO_ERRVAL
+#define PSEUDO_ERRVAL(name, syscall_name, args)			\
+	ENTRY(name)						\
+	DO_CALL_ERRVAL(syscall_name, args)	ASM_LINE_SEP	\
+	nop					ASM_LINE_SEP
+
+#define ret_ERRVAL ret
+	
+#undef	PSEUDO_END_ERRVAL
+#define PSEUDO_END_ERRVAL(name)					\
+	END(name)
+
+#undef JUMPTARGET
 #define JUMPTARGET(name)	name
 #define SYSCALL_PIC_SETUP	/* Nothing.  */
 
+	
+/* All the syscall assembly macros rely on finding the approriate 
+   SYSCALL_ERROR_LABEL or rather HANDLER. */
+
+/* int * __errno_location(void) so you have to store your value
+   into the return address! */
+#define DEFAULT_SYSCALL_ERROR_HANDLER 			\
+	.import __errno_location,code	ASM_LINE_SEP	\
+	/* branch to errno handler */	ASM_LINE_SEP	\
+	bl __errno_location,%rp		ASM_LINE_SEP
+	
+/* Here are the myriad of configuration options that the above can
+   work for... what we've done is provide the framework for future
+   changes if required to each section */
+	
+#ifdef PIC
+# if RTLD_PRIVATE_ERRNO
+#  define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER			    
+# else /* !RTLD_PRIVATE_ERRNO */
+#  if defined _LIBC_REENTRANT
+#   define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER
+#  else /* !_LIBC_REENTRANT */
+#   define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER
+#  endif /* _LIBC_REENTRANT */
+# endif /* RTLD_PRIVATE_ERRNO */
+#else
+# ifndef _LIBC_REENTRANT
+#  define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER
+# else
+#  define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER
+# endif
+#endif					
+	
+	
 /* Linux takes system call arguments in registers:
 	syscall number	gr20
 	arg 1		gr26
@@ -159,25 +228,61 @@
 
 #undef	DO_CALL
 #define DO_CALL(syscall_name, args)				\
-	DOARGS_##args						\
+	DOARGS_##args				ASM_LINE_SEP	\
+	STW_PIC					ASM_LINE_SEP	\
+	/* Do syscall, delay loads # */		ASM_LINE_SEP	\
 	ble  0x100(%sr2,%r0)			ASM_LINE_SEP	\
 	ldi SYS_ify (syscall_name), %r20	ASM_LINE_SEP	\
 	ldi -0x1000,%r1				ASM_LINE_SEP	\
 	cmpb,>>=,n %r1,%ret0,0f			ASM_LINE_SEP	\
-	stw %rp, -20(%sr0,%r30)			ASM_LINE_SEP	\
-	stw %ret0, -24(%sr0,%r30)		ASM_LINE_SEP	\
-	.import __errno_location,code		ASM_LINE_SEP	\
-	bl __errno_location,%rp			ASM_LINE_SEP	\
-	ldo 64(%r30), %r30			ASM_LINE_SEP	\
-	ldo -64(%r30), %r30			ASM_LINE_SEP	\
-	ldw -24(%r30), %r26			ASM_LINE_SEP	\
+	/* save rp or we get lost */		ASM_LINE_SEP	\
+	stw %rp, -20(%sr0,%sp)			ASM_LINE_SEP	\
+	/* Restore r19 from frame */		ASM_LINE_SEP	\
+	LDW_PIC					ASM_LINE_SEP	\
+	stw %ret0, -24(%sr0,%sp)		ASM_LINE_SEP	\
+	SYSCALL_ERROR_HANDLER			ASM_LINE_SEP	\
+	/* create frame */			ASM_LINE_SEP	\
+	ldo 64(%sp), %sp			ASM_LINE_SEP	\
+	ldo -64(%sp), %sp			ASM_LINE_SEP	\
+	/* OPTIMIZE: Don't reload r19 */	ASM_LINE_SEP	\
+	/* do a -1*syscall_ret0 */		ASM_LINE_SEP	\
+	ldw -24(%sr0,%sp), %r26			ASM_LINE_SEP	\
 	sub %r0, %r26, %r26			ASM_LINE_SEP	\
+	/* Store into errno location */		ASM_LINE_SEP	\
 	stw %r26, 0(%sr0,%ret0)			ASM_LINE_SEP	\
+	/* return -1 as error */		ASM_LINE_SEP	\
 	ldo -1(%r0), %ret0			ASM_LINE_SEP	\
-	ldw -20(%r30), %rp			ASM_LINE_SEP	\
+	ldw -20(%sr0,%sp), %rp			ASM_LINE_SEP	\
 0:						ASM_LINE_SEP	\
+	UNDOARGS_##args				ASM_LINE_SEP
+
+/* We do nothing with the return, except hand it back to someone else */
+#undef  DO_CALL_NOERRNO
+#define DO_CALL_NOERRNO(syscall_name, args)			\
+	DOARGS_##args                                           \
+	/* No need to store r19 */		ASM_LINE_SEP	\
+	ble  0x100(%sr2,%r0)                    ASM_LINE_SEP    \
+	ldi SYS_ify (syscall_name), %r20        ASM_LINE_SEP    \
+	/* Caller will restore r19 */		ASM_LINE_SEP	\
 	UNDOARGS_##args
 
+/* Here, we return the ERRVAL in assembly, note we don't call the
+   error handler function, but we do 'negate' the return _IF_
+   it's an error. Not sure if this is the right semantic. */
+
+#undef	DO_CALL_ERRVAL
+#define DO_CALL_ERRVAL(syscall_name, args)			\
+	DOARGS_##args				ASM_LINE_SEP	\
+	/* No need to store r19 */		ASM_LINE_SEP	\
+	ble  0x100(%sr2,%r0)			ASM_LINE_SEP	\
+	ldi SYS_ify (syscall_name), %r20	ASM_LINE_SEP	\
+	/* Caller will restore r19 */		ASM_LINE_SEP	\
+	ldi -0x1000,%r1				ASM_LINE_SEP	\
+	cmpb,>>=,n %r1,%ret0,0f			ASM_LINE_SEP	\
+	sub %r0, %ret0, %ret0			ASM_LINE_SEP	\
+0:						ASM_LINE_SEP	\
+	UNDOARGS_##args				ASM_LINE_SEP
+
 #define DOARGS_0 /* nothing */
 #define DOARGS_1 /* nothing */
 #define DOARGS_2 /* nothing */
@@ -198,26 +303,87 @@
 
 #else
 
+/* GCC has to be warned that a syscall may clobber all the ABI 
+   registers listed as "caller-saves", see page 8, Table 2 
+   in section 2.2.6 of the PA-RISC RUN-TIME architecture 
+   document. However! r28 is the result and will conflict with
+   the clobber list so it is left out. Also the input arguments
+   registers r20 -> r26 will conflict with the list so they 
+   are treated specially. Although r19 is clobbered by the syscall
+   we cannot say this because it would violate ABI, thus we say
+   r4 is clobbered and use that register to save/restore r19
+   across the syscall. */
+		 
+#define CALL_CLOB_REGS	"%r1", "%r2", USING_GR4 \
+		 	"%r20", "%r29", "%r31"
+		 
 #undef INLINE_SYSCALL
-#define INLINE_SYSCALL(name, nr, args...)	({		\
+#define INLINE_SYSCALL(name, nr, args...)	({			\
+	long __sys_res;							\
+	{								\
+		register unsigned long __res asm("r28");		\
+		LOAD_ARGS_##nr(args)					\
+		/* FIXME: HACK stw/ldw r19 around syscall */		\
+		asm volatile(						\
+			STW_ASM_PIC					\
+			"	ble  0x100(%%sr2, %%r0)\n"		\
+			"	ldi %1, %%r20\n"			\
+			LDW_ASM_PIC					\
+			: "=r" (__res)					\
+			: "i" (SYS_ify(name)) ASM_ARGS_##nr		\
+			: CALL_CLOB_REGS CLOB_ARGS_##nr			\
+		);							\
+		__sys_res = (long)__res;				\
+	}								\
+	if ( (unsigned long)__sys_res >= (unsigned long)-4095 ){	\
+		__set_errno(-__sys_res);				\
+		__sys_res = -1;						\
+	}								\
+	__sys_res;							\
+})
+
+/* INTERNAL_SYSCALL_DECL - Allows us to setup some function static 
+   value to use within the context of the syscall 
+   INTERNAL_SYSCALL_ERROR_P - Returns 0 if it wasn't an error, 1 otherwise
+   You are allowed to use the syscall result (val) and the DECL error variable
+   to determine what went wrong.
+   INTERLAL_SYSCALL_ERRNO - Munges the val/err pair into the error number.
+   In our case we just flip the sign. */
+
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
+
+/* Equivalent to  (val < 0)&&(val > -4095) which is what we want */
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err) \
+	((unsigned long)val >= (unsigned long)-4095)
+	
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
+
+/* Similar to INLINE_SYSCALL but we don't set errno */
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, err, nr, args...) 		\
+({								\
 	long __sys_res;						\
 	{							\
 		register unsigned long __res asm("r28");	\
 		LOAD_ARGS_##nr(args)				\
+		/* FIXME: HACK stw/ldw r19 around syscall */	\
 		asm volatile(					\
-			"ble  0x100(%%sr2, %%r0)\n\t"		\
-			" ldi %1, %%r20"			\
+			STW_ASM_PIC				\
+			"	ble  0x100(%%sr2, %%r0)\n"	\
+			"	ldi %1, %%r20\n"		\
+			LDW_ASM_PIC				\
 			: "=r" (__res)				\
 			: "i" (SYS_ify(name)) ASM_ARGS_##nr	\
-			 );					\
-		__sys_res = __res;				\
-	}							\
-	if ((unsigned long)__sys_res >= (unsigned long)-4095) {	\
-		__set_errno(-__sys_res);			\
-		__sys_res = -1;					\
+			: CALL_CLOB_REGS CLOB_ARGS_##nr		\
+		);						\
+		__sys_res = (long)__res;			\
 	}							\
 	__sys_res;						\
-})
+ })
+
 
 #define LOAD_ARGS_0()
 #define LOAD_ARGS_1(r26)					\
@@ -239,12 +405,22 @@
 	register unsigned long __r21 __asm__("r21") = (unsigned long)r21;	\
 	LOAD_ARGS_5(r26,r25,r24,r23,r22)
 
-#define ASM_ARGS_0
-#define ASM_ARGS_1 , "r" (__r26)
-#define ASM_ARGS_2 , "r" (__r26), "r" (__r25)
-#define ASM_ARGS_3 , "r" (__r26), "r" (__r25), "r" (__r24)
-#define ASM_ARGS_4 , "r" (__r26), "r" (__r25), "r" (__r24), "r" (__r23)
-#define ASM_ARGS_5 , "r" (__r26), "r" (__r25), "r" (__r24), "r" (__r23), "r" (__r22)
-#define ASM_ARGS_6 , "r" (__r26), "r" (__r25), "r" (__r24), "r" (__r23), "r" (__r22), "r" (__r21)
-
+/* Even with zero args we use r20 for the syscall number */
+#define ASM_ARGS_0 
+#define ASM_ARGS_1 ASM_ARGS_0, "r" (__r26)
+#define ASM_ARGS_2 ASM_ARGS_1, "r" (__r25)
+#define ASM_ARGS_3 ASM_ARGS_2, "r" (__r24)
+#define ASM_ARGS_4 ASM_ARGS_3, "r" (__r23)
+#define ASM_ARGS_5 ASM_ARGS_4, "r" (__r22)
+#define ASM_ARGS_6 ASM_ARGS_5, "r" (__r21)
+
+/* The registers not listed as inputs but clobbered */
+#define CLOB_ARGS_6
+#define CLOB_ARGS_5 CLOB_ARGS_6, "%r21"
+#define CLOB_ARGS_4 CLOB_ARGS_5, "%r22"
+#define CLOB_ARGS_3 CLOB_ARGS_4, "%r23"
+#define CLOB_ARGS_2 CLOB_ARGS_3, "%r24"
+#define CLOB_ARGS_1 CLOB_ARGS_2, "%r25"
+#define CLOB_ARGS_0 CLOB_ARGS_1, "%r26"
+	
 #endif	/* __ASSEMBLER__ */
diff -u -p -r1.4 sysdep.c
--- libc/sysdeps/unix/sysv/linux/hppa/sysdep.c	11 Oct 2002 10:51:21 -0000	1.4
+++ libc/sysdeps/unix/sysv/linux/hppa/sysdep.c	30 Aug 2003 23:03:16 -0000
@@ -19,6 +19,10 @@
 #include <sysdep.h>
 #include <errno.h>
 
+extern int __syscall_error(int err_no);
+extern int syscall (int sysnum, int arg0, int arg1, int arg2, 
+			int arg3, int arg4, int arg5);
+
 /* This routine is jumped to by all the syscall handlers, to stash
    an error number into errno.  */
 int
@@ -30,25 +34,31 @@ __syscall_error (int err_no)
 
 
 /* HPPA implements syscall() in 'C'; the assembler version would
-   typically be in syscall.S.  */
-
+   typically be in syscall.S. Also note that we have INLINE_SYSCALL,
+   INTERNAL_SYSCALL, and all the generated pure assembly syscall wrappers.
+   How often the function is used is unknown. */
 int
 syscall (int sysnum, int arg0, int arg1, int arg2, int arg3, int arg4, int arg5)
 {
-  long __sys_res;
-  {
-    register unsigned long __res asm("r28");
-    LOAD_ARGS_6(arg0, arg1, arg2, arg3, arg4, arg5)
-      asm volatile ("ble  0x100(%%sr2, %%r0)\n\t"
-		    "copy %1, %%r20"
-		    : "=r" (__res)
-		    : "r" (sysnum) ASM_ARGS_6);
-    __sys_res = __res;
-  }
-  if ((unsigned long) __sys_res >= (unsigned long)-4095)
-    {
-    __set_errno(-__sys_res);
-    __sys_res = -1;
-  }
-  return __sys_res;
+	/* FIXME: Keep this matching INLINE_SYSCALL for hppa */
+	long __sys_res;
+	{
+		register unsigned long __res asm("r28");
+		LOAD_ARGS_6(arg0, arg1, arg2, arg3, arg4, arg5)
+		asm volatile (
+			STW_ASM_PIC
+			"	ble  0x100(%%sr2, %%r0)	\n"
+			"	copy %1, %%r20		\n"
+			LDW_ASM_PIC
+			: "=r" (__res)
+			: "r" (sysnum) ASM_ARGS_6
+			: CALL_CLOB_REGS CLOB_ARGS_6
+		);
+		__sys_res = __res;
+	}
+	if ((unsigned long) __sys_res >= (unsigned long)-4095){
+		__set_errno(-__sys_res);
+		__sys_res = -1;
+	}
+	return __sys_res;
 }


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libc-alpha,

Changes:

a. Removed _STACK_GROWS_UP changes.
b. Fixed formatting.
c. Fixed Changelog entry.
d. Added olsemaphore patch.

---

I've split linuxthreads for HPPA into 3 digestible patches:

1. Linuxthreads general changes.
2. Linuxthreads sysdep changes.
3. Linuxthreads changes for HPPA.

===

1. Linuxthreads general changes. 

Tested on i386, Alpha, and HPPA. Debian has been using this code since 2.3.1.
All of this code revolves around two central architecture issues:

a. HPPA needs an abstraction for it's atomic lock type.
b. The lock type cannot be initialized to zero.
c. HPPA's stack grows up.

NTPL and TLS are next on the plate for HPPA. Thanks for being patient.

Cheers,
Carlos

===
 linuxthreads/descr.h        |    2 
 linuxthreads/pt-machine.c   |    4 +
 linuxthreads/pthread.c      |   14 ++---
 linuxthreads/spinlock.c     |   22 ++++----
 linuxthreads/spinlock.h     |   26 +++++++---
 linuxthreads/oldsemaphore.c |    2 
 6 files changed, 43 insertions(+), 27 deletions(-)
===

2003-10-12  Carlos O'Donell <carlos@baldric.uwo.ca>

	* descr.h: Define p_spinlock as __atomic_lock_t 
	in struct pthread_atomic.
	* pt-machine.c: Define testandset to take __atomic_lock_t *spinlock.
	* pthread.c (__pthread_initialize_minimal): Use 
	__LT_INITIALIZER_NOT_ZERO instead of __LT_SPINLOCK_INIT.
	* spinlock.c: __pthread_acquire call takes 
	__atomic_lock_t *spinlock, define abandoned as __atomic_lock_t 
	in struct wait_node, use __pthread_lock_define_initialized for 
	wait_node_free_list.
	(__pthread_alt_lock): Use __LT_SPINLOCK_INIT to clear abandoned.
	(__pthread_alt_timedlock): Likewise.
	(__pthread_alt_unlock): Use lock_held.
	(__pthread_release): Call takes __atomic_lock_t *spinlock.
	(__pthread_compare_and_swap): Likewise.
	(__pthread_acquire): Likewise.
	* spinlock.h: Define lock_held, define 
	__pthread_lock_define_initialized for __LT_INITIALIZER_NOT_ZERO, 
	__pthread_compare_and_swap takes __atomic_lock_t *spinlock.
	(compare_and_swap): All versions takes __atomic_lock_t *spinlock.
	(compare_and_swap_with_release_semantics): Likewise.
	* oldsemaphore.c: sem_spinlock in struct old_sem_t is an 
	__atomic_lock_t.

diff -urN glibc-2.3.1.orig/linuxthreads/descr.h glibc-2.3.1/linuxthreads/descr.h
--- glibc-2.3.1.orig/linuxthreads/descr.h	2003-01-15 12:58:11.000000000 -0500
+++ glibc-2.3.1/linuxthreads/descr.h	2003-01-15 18:24:36.000000000 -0500
@@ -70,7 +70,7 @@
 /* Atomic counter made possible by compare_and_swap */
 struct pthread_atomic {
   long p_count;
-  int p_spinlock;
+  __atomic_lock_t p_spinlock;
 };
 
 
diff -urN glibc-2.3.1.orig/linuxthreads/pt-machine.c glibc-2.3.1/linuxthreads/pt-machine.c
--- glibc-2.3.1.orig/linuxthreads/pt-machine.c	2002-08-26 18:39:45.000000000 -0400
+++ glibc-2.3.1/linuxthreads/pt-machine.c	2003-01-15 18:24:36.000000000 -0500
@@ -19,7 +19,9 @@
 
 #define PT_EI
 
-extern long int testandset (int *spinlock);
+#include <pthread.h>
+
+extern long int testandset (__atomic_lock_t *spinlock);
 extern int __compare_and_swap (long int *p, long int oldval, long int newval);
 
 #include <pt-machine.h>
diff -u -p -r1.131 pthread.c
--- libc/linuxthreads/pthread.c	23 Sep 2003 04:33:01 -0000	1.131
+++ libc/linuxthreads/pthread.c	6 Oct 2003 14:48:18 -0000
@@ -300,9 +300,9 @@ __pthread_initialize_minimal(void)
   pthread_descr self;
 
   /* First of all init __pthread_handles[0] and [1] if needed.  */
-# if __LT_SPINLOCK_INIT != 0
-  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
-  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
 # endif
 # ifndef SHARED
   /* Unlike in the dynamically linked case the dynamic linker has not
@@ -370,7 +370,7 @@ cannot allocate TLS data structures for 
 # endif
   /* self->p_start_args need not be initialized, it's all zero.  */
   self->p_userstack = 1;
-# if __LT_SPINLOCK_INIT != 0
+# ifdef __LT_INITIALIZER_NOT_ZERO 
   self->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER;
 # endif
   self->p_alloca_cutoff = __MAX_ALLOCA_CUTOFF;
@@ -384,9 +384,9 @@ cannot allocate TLS data structures for 
 #else  /* USE_TLS */
 
   /* First of all init __pthread_handles[0] and [1].  */
-# if __LT_SPINLOCK_INIT != 0
-  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
-  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
 # endif
   __pthread_handles[0].h_descr = &__pthread_initial_thread;
   __pthread_handles[1].h_descr = &__pthread_manager_thread;
diff -urN glibc-2.3.1.orig/linuxthreads/spinlock.c glibc-2.3.1/linuxthreads/spinlock.c
--- glibc-2.3.1.orig/linuxthreads/spinlock.c	2002-08-29 06:32:19.000000000 -0400
+++ glibc-2.3.1/linuxthreads/spinlock.c	2003-01-15 18:24:36.000000000 -0500
@@ -24,9 +24,9 @@
 #include "spinlock.h"
 #include "restart.h"
 
-static void __pthread_acquire(int * spinlock);
+static void __pthread_acquire(__atomic_lock_t * spinlock);
 
-static inline void __pthread_release(int * spinlock)
+static inline void __pthread_release(__atomic_lock_t * spinlock)
 {
   WRITE_MEMORY_BARRIER();
   *spinlock = __LT_SPINLOCK_INIT;
@@ -269,11 +269,11 @@
 struct wait_node {
   struct wait_node *next;	/* Next node in null terminated linked list */
   pthread_descr thr;		/* The thread waiting with this node */
-  int abandoned;		/* Atomic flag */
+  __atomic_lock_t abandoned;	/* Atomic flag */
 };
 
 static long wait_node_free_list;
-static int wait_node_free_list_spinlock;
+__pthread_lock_define_initialized(static, wait_node_free_list_spinlock);
 
 /* Allocate a new node from the head of the free list using an atomic
    operation, or else using malloc if that list is empty.  A fundamental
@@ -376,7 +376,7 @@
       if (self == NULL)
 	self = thread_self();
 
-      wait_node.abandoned = 0;
+      wait_node.abandoned = __LT_SPINLOCK_INIT;
       wait_node.next = (struct wait_node *) lock->__status;
       wait_node.thr = self;
       lock->__status = (long) &wait_node;
@@ -402,7 +402,7 @@
       wait_node.thr = self;
       newstatus = (long) &wait_node;
     }
-    wait_node.abandoned = 0;
+    wait_node.abandoned = __LT_SPINLOCK_INIT;
     wait_node.next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -451,7 +451,7 @@
       if (self == NULL)
 	self = thread_self();
 
-      p_wait_node->abandoned = 0;
+      p_wait_node->abandoned = __LT_SPINLOCK_INIT;
       p_wait_node->next = (struct wait_node *) lock->__status;
       p_wait_node->thr = self;
       lock->__status = (long) p_wait_node;
@@ -474,7 +474,7 @@
       p_wait_node->thr = self;
       newstatus = (long) p_wait_node;
     }
-    p_wait_node->abandoned = 0;
+    p_wait_node->abandoned = __LT_SPINLOCK_INIT;
     p_wait_node->next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -574,7 +574,7 @@
     while (p_node != (struct wait_node *) 1) {
       int prio;
 
-      if (p_node->abandoned) {
+      if (lock_held(&p_node->abandoned)) {
 	/* Remove abandoned node. */
 #if defined TEST_FOR_COMPARE_AND_SWAP
 	if (!__pthread_has_cas)
@@ -662,7 +662,7 @@
 #if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP
 
 int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                               int * spinlock)
+                               __atomic_lock_t * spinlock)
 {
   int res;
 
@@ -699,7 +699,7 @@
    - When nanosleep() returns, we try again, doing MAX_SPIN_COUNT
      sched_yield(), then sleeping again if needed. */
 
-static void __pthread_acquire(int * spinlock)
+static void __pthread_acquire(__atomic_lock_t * spinlock)	
 {
   int cnt = 0;
   struct timespec tm;
diff -urN glibc-2.3.1.orig/linuxthreads/spinlock.h glibc-2.3.1/linuxthreads/spinlock.h
--- glibc-2.3.1.orig/linuxthreads/spinlock.h	2001-05-24 19:36:35.000000000 -0400
+++ glibc-2.3.1/linuxthreads/spinlock.h	2003-01-15 18:24:36.000000000 -0500
@@ -33,14 +33,28 @@
 #endif
 #endif
 
+/* Define lock_held for all arches that don't need a modified copy. */
+#ifndef __LT_INITIALIZER_NOT_ZERO
+# define lock_held(p) *(p)
+#endif
+
+/* Initliazers for possibly complex structures */
+#ifdef __LT_INITIALIZER_NOT_ZERO
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME = __LT_SPINLOCK_ALT_INIT
+#else
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME
+#endif
+
 #if defined(TEST_FOR_COMPARE_AND_SWAP)
 
 extern int __pthread_has_cas;
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   if (__builtin_expect (__pthread_has_cas, 1))
     return __compare_and_swap(ptr, oldval, newval);
@@ -58,7 +72,7 @@
 
 static inline int
 compare_and_swap_with_release_semantics (long * ptr, long oldval,
-					 long newval, int * spinlock)
+					 long newval, __atomic_lock_t * spinlock)
 {
   return __compare_and_swap_with_release_semantics (ptr, oldval,
 						    newval);
@@ -67,7 +81,7 @@
 #endif
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __compare_and_swap(ptr, oldval, newval);
 }
@@ -75,10 +89,10 @@
 #else
 
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __pthread_compare_and_swap(ptr, oldval, newval, spinlock);
 }
--- libc/linuxthreads/oldsemaphore.c	25 May 2001 07:38:39 -0000	1.11
+++ libc/linuxthreads/oldsemaphore.c	21 Apr 2003 23:53:24 -0000
@@ -31,7 +31,7 @@
 
 typedef struct {
     long int sem_status;
-    int sem_spinlock;
+    __atomic_lock_t sem_spinlock;
 } old_sem_t;
 
 extern int __old_sem_init (old_sem_t *__sem, int __pshared, unsigned int __value);


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libc-alpha,

Changes:

a. Fixed formatting.
b. Fixed Changelog entry.

---

2. Linuxthreads sysdep changes. 

This patch represents the minor changes required in linuxthreads sysdeps to
accomodate for hppa's special lock requirements (e.g. A structure instead of
an integer).

The changes are minor and require that __LT_SPINLOCK_INIT no longer be used in
a macro comparison since it's now a structure. A different define
(__LT_INITIALIZER_NOT_ZERO) is used to indicate an architecture that does not 
initialize a lock to zero.

Cheers,
Carlos.

===
 linuxthreads/sysdeps/pthread/bits/libc-lock.h    |    6 +++---
 linuxthreads/sysdeps/pthread/bits/pthreadtypes.h |    8 +++++---
 2 files changed, 8 insertions(+), 6 deletions(-)
===

2003-10-12  Carlos O'Donell <carlos@baldric.uwo.ca>

	* sysdeps/pthread/bits/libc-lock.h:
	Use __LT_INITIALIZER_NOT_ZERO.
	* sysdeps/pthread/bits/pthreadtypes.h:
	spinlock in struct _pthread_fastlock is __atomic_lock_t.

diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/libc-lock.h glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/libc-lock.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/libc-lock.h	2003-01-15 12:58:35.000000000 -0500
+++ glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/libc-lock.h	2003-01-15 18:24:36.000000000 -0500
@@ -71,12 +71,12 @@
    initialized locks must be set to one due to the lack of normal
    atomic operations.) */
 
-#if __LT_SPINLOCK_INIT == 0
+#ifdef __LT_INITIALIZER_NOT_ZERO
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME;
+  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
 #else
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
+  CLASS __libc_lock_t NAME;
 #endif
 
 #define __libc_rwlock_define_initialized(CLASS,NAME) \
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	2003-01-15 12:58:35.000000000 -0500
+++ glibc-2.3.1/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	2003-01-15 18:24:36.000000000 -0500
@@ -22,12 +22,14 @@
 #define __need_schedparam
 #include <bits/sched.h>
 
+typedef int __atomic_lock_t;
+
 /* Fast locks (not abstract because mutexes and conditions aren't abstract). */
 struct _pthread_fastlock
 {
-  long int __status;   /* "Free" or "taken" or head of waiting list */
-  int __spinlock;      /* Used by compare_and_swap emulation. Also,
-			  adaptive SMP lock stores spin count here. */
+  long int __status;		/* "Free" or "taken" or head of waiting list */
+  __atomic_lock_t __spinlock;	/* Used by compare_and_swap emulation. Also,
+				   adaptive SMP lock stores spin count here. */
 };
 
 #ifndef _PTHREAD_DESCR_DEFINED


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libc-alpha,

Changes:

a. Fixed formatting.
b. Fixed Changelog entry.

---

3. Linuxthreads changes for HPPA.

The following are the architecture specific changes to implement linuxthreads 
on hppa. These patches have been thoroughly tested in 2.3.1 and forward ported 
to the current cvs tree. NTPL and TLS are next on the plate for HPPA. 

Cheers,
Carlos.

===
 sysdeps/hppa/pspinlock.c                         |   25 -
 sysdeps/hppa/pt-machine.h                        |   86 ++++-
 sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h |  160 ++++++++++
 sysdeps/unix/sysv/linux/hppa/bits/initspin.h     |   22 +
 4 files changed, 259 insertions(+), 34 deletions(-)
===

2003-10-12  Carlos O'Donell <carlos@baldric.uwo.ca>

	* sysdeps/hppa/pspinlock.c
	(__pthread_spin_lock): Use __ldcw_align and __ldcw.
	(__pthread_spin_trylock): Likewise.
	(__pthread_spin_unlock): Use __ldcw_align.
	(__pthread_spin_init): Likewise.
	* sysdeps/hppa/pt-machine.h
	(THREAD_SELF): New.
	(INIT_THREAD_SELF): New.
	(__ldcw): New.
	(__ldcw_align): New.
	(__load_and_clear): New.
	(testandset): New.
	(lock_held): New.
	* sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h: New file.
	* sysdeps/unix/sysv/linux/hppa/bits/initspin.h:	Define changed to 
	match struct __atomic_lock_t.

diff -u -p -r1.3 pspinlock.c
--- libc/linuxthreads/sysdeps/hppa/pspinlock.c	26 Aug 2002 22:39:51 -0000	1.3
+++ libc/linuxthreads/sysdeps/hppa/pspinlock.c	12 Oct 2003 20:08:46 -0000
@@ -24,13 +24,10 @@
 int
 __pthread_spin_lock (pthread_spinlock_t *lock)
 {
-  unsigned int val;
+  volatile unsigned int *addr = __ldcw_align (lock);
 
-  do
-    asm volatile ("ldcw %1,%0"
-		  : "=r" (val), "=m" (*lock)
-		  : "m" (*lock));
-  while (!val);
+  while (__ldcw (addr) == 0)
+    while (*addr == 0) ;
 
   return 0;
 }
@@ -40,13 +37,9 @@ weak_alias (__pthread_spin_lock, pthread
 int
 __pthread_spin_trylock (pthread_spinlock_t *lock)
 {
-  unsigned int val;
+  volatile unsigned int *a = __ldcw_align (lock);
 
-  asm volatile ("ldcw %1,%0"
-		: "=r" (val), "=m" (*lock)
-		: "m" (*lock));
-
-  return val ? 0 : EBUSY;
+  return __ldcw (a) ? 0 : EBUSY;
 }
 weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
 
@@ -54,7 +47,9 @@ weak_alias (__pthread_spin_trylock, pthr
 int
 __pthread_spin_unlock (pthread_spinlock_t *lock)
 {
-  *lock = 1;
+  volatile unsigned int *a = __ldcw_align (lock);
+
+  *a = 1;
   return 0;
 }
 weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
@@ -66,7 +61,9 @@ __pthread_spin_init (pthread_spinlock_t 
   /* We can ignore the `pshared' parameter.  Since we are busy-waiting
      all processes which can access the memory location `lock' points
      to can use the spinlock.  */
-  *lock = 1;
+  volatile unsigned int *a = __ldcw_align (lock);
+
+  *a = 1;
   return 0;
 }
 weak_alias (__pthread_spin_init, pthread_spin_init)
diff -u -p -r1.6 pt-machine.h
--- libc/linuxthreads/sysdeps/hppa/pt-machine.h	31 Jul 2003 19:15:42 -0000	1.6
+++ libc/linuxthreads/sysdeps/hppa/pt-machine.h	5 Aug 2003 19:58:59 -0000
@@ -22,41 +22,97 @@
 #ifndef _PT_MACHINE_H
 #define _PT_MACHINE_H   1
 
+#include <sys/types.h>
 #include <bits/initspin.h>
 
 #ifndef PT_EI
 # define PT_EI extern inline __attribute__ ((always_inline))
 #endif
 
-extern long int testandset (int *spinlock);
-extern int __compare_and_swap (long int *p, long int oldval, long int newval);
+extern inline long int testandset (__atomic_lock_t *spinlock);
+extern inline int __compare_and_swap (long int *p, long int oldval, long int newval);
+extern inline int lock_held (__atomic_lock_t *spinlock); 
+extern inline int __load_and_clear (__atomic_lock_t *spinlock);
 
 /* Get some notion of the current stack.  Need not be exactly the top
    of the stack, just something somewhere in the current frame.  */
 #define CURRENT_STACK_FRAME  stack_pointer
 register char * stack_pointer __asm__ ("%r30");
 
+/* Get/Set thread-specific pointer.  We have to call into the kernel to
+ * modify it, but we can read it in user mode.  */
+
+#define THREAD_SELF __get_cr27()
+
+static inline struct _pthread_descr_struct * __get_cr27(void)
+{
+	long cr27;
+	asm("mfctl %%cr27, %0" : "=r" (cr27) : );
+	return (struct _pthread_descr_struct *) cr27;
+}
+
+#define INIT_THREAD_SELF(descr, nr) __set_cr27(descr)
+
+static inline void __set_cr27(struct _pthread_descr_struct * cr27)
+{
+	asm(
+		"ble	0xe0(%%sr2, %%r0)\n\t"
+		"copy	%0, %%r26"
+	 : : "r" (cr27) : "r26" );
+}
+
+/* We want the OS to assign stack addresses.  */
+#define FLOATING_STACKS	1
+#define ARCH_STACK_MAX_SIZE	8*1024*1024
 
 /* The hppa only has one atomic read and modify memory operation,
    load and clear, so hppa spinlocks must use zero to signify that
-   someone is holding the lock.  */
+   someone is holding the lock.  The address used for the ldcw
+   semaphore must be 16-byte aligned.  */
+#define __ldcw(a) ({ \
+  unsigned int __ret;							\
+  __asm__ __volatile__("ldcw 0(%2),%0"					\
+                      : "=r" (__ret), "=m" (*(a)) : "r" (a));		\
+  __ret;								\
+})
+
+/* Because malloc only guarantees 8-byte alignment for malloc'd data,
+   and GCC only guarantees 8-byte alignment for stack locals, we can't
+   be assured of 16-byte alignment for atomic lock data even if we
+   specify "__attribute ((aligned(16)))" in the type declaration.  So,
+   we use a struct containing an array of four ints for the atomic lock
+   type and dynamically select the 16-byte aligned int from the array
+   for the semaphore.  */
+#define __PA_LDCW_ALIGNMENT 16
+#define __ldcw_align(a) ({ \
+  volatile unsigned int __ret = (unsigned int) a;			\
+  if ((__ret & ~(__PA_LDCW_ALIGNMENT - 1)) < (unsigned int) a)		\
+    __ret = (__ret & ~(__PA_LDCW_ALIGNMENT - 1)) + __PA_LDCW_ALIGNMENT; \
+  (unsigned int *) __ret;						\
+})
 
-#define xstr(s) str(s)
-#define str(s) #s
 /* Spinlock implementation; required.  */
-PT_EI long int
-testandset (int *spinlock)
+PT_EI int
+__load_and_clear (__atomic_lock_t *spinlock)
 {
-  int ret;
+  volatile unsigned int *a = __ldcw_align (spinlock);
 
-  __asm__ __volatile__(
-       "ldcw 0(%2),%0"
-       : "=r"(ret), "=m"(*spinlock)
-       : "r"(spinlock));
+  return __ldcw (a);
+}
 
-  return ret == 0;
+/* Emulate testandset */
+PT_EI long int
+testandset (__atomic_lock_t *spinlock)
+{
+  return (__load_and_clear(spinlock) == 0);
 }
-#undef str
-#undef xstr
 
+PT_EI int
+lock_held (__atomic_lock_t *spinlock)
+{
+  volatile unsigned int *a = __ldcw_align (spinlock);
+
+  return *a == 0;
+}
+		
 #endif /* pt-machine.h */
--- libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h	2003-04-26 14:40:04.000000000 -0400
@@ -0,0 +1,160 @@
+/* Linuxthreads - a simple clone()-based implementation of Posix        */
+/* threads for Linux.                                                   */
+/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr)              */
+/*                                                                      */
+/* This program is free software; you can redistribute it and/or        */
+/* modify it under the terms of the GNU Library General Public License  */
+/* as published by the Free Software Foundation; either version 2       */
+/* of the License, or (at your option) any later version.               */
+/*                                                                      */
+/* This program is distributed in the hope that it will be useful,      */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of       */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        */
+/* GNU Library General Public License for more details.                 */
+
+#if !defined _BITS_TYPES_H && !defined _PTHREAD_H
+# error "Never include <bits/pthreadtypes.h> directly; use <sys/types.h> instead."
+#endif
+
+#ifndef _BITS_PTHREADTYPES_H
+#define _BITS_PTHREADTYPES_H	1
+
+#define __need_schedparam
+#include <bits/sched.h>
+
+/* We need 128-bit alignment for the ldcw semaphore.  At most, we are
+   assured of 64-bit alignment for stack locals and malloc'd data.  Thus,
+   we use a struct with four ints for the atomic lock type.  The locking
+   code will figure out which of the four to use for the ldcw semaphore.  */
+typedef volatile struct {
+  int lock[4];
+} __attribute__ ((aligned(16))) __atomic_lock_t;
+
+/* Fast locks (not abstract because mutexes and conditions aren't abstract). */
+struct _pthread_fastlock
+{
+  long int __status;		/* "Free" or "taken" or head of waiting list */
+  __atomic_lock_t __spinlock;	/* Used by compare_and_swap emulation.  Also,
+				   adaptive SMP lock stores spin count here. */
+};
+
+#ifndef _PTHREAD_DESCR_DEFINED
+/* Thread descriptors */
+typedef struct _pthread_descr_struct *_pthread_descr;
+# define _PTHREAD_DESCR_DEFINED
+#endif
+
+
+/* Attributes for threads.  */
+typedef struct __pthread_attr_s
+{
+  int __detachstate;
+  int __schedpolicy;
+  struct __sched_param __schedparam;
+  int __inheritsched;
+  int __scope;
+  size_t __guardsize;
+  int __stackaddr_set;
+  void *__stackaddr;
+  size_t __stacksize;
+} pthread_attr_t;
+
+
+/* Conditions (not abstract because of PTHREAD_COND_INITIALIZER */
+
+#ifdef __GLIBC_HAVE_LONG_LONG
+__extension__ typedef long long __pthread_cond_align_t;
+#else
+typedef long __pthread_cond_align_t;
+#endif
+
+typedef struct
+{
+  struct _pthread_fastlock __c_lock; /* Protect against concurrent access */
+  _pthread_descr __c_waiting;        /* Threads waiting on this condition */
+  char __padding[48 - sizeof (struct _pthread_fastlock)
+		 - sizeof (_pthread_descr) - sizeof (__pthread_cond_align_t)];
+  __pthread_cond_align_t __align;
+} pthread_cond_t;
+
+
+/* Attribute for conditionally variables.  */
+typedef struct
+{
+  int __dummy;
+} pthread_condattr_t;
+
+/* Keys for thread-specific data */
+typedef unsigned int pthread_key_t;
+
+
+/* Mutexes (not abstract because of PTHREAD_MUTEX_INITIALIZER).  */
+/* (The layout is unnatural to maintain binary compatibility
+    with earlier releases of LinuxThreads.) */
+typedef struct
+{
+  int __m_reserved;               /* Reserved for future use */
+  int __m_count;                  /* Depth of recursive locking */
+  _pthread_descr __m_owner;       /* Owner thread (if recursive or errcheck) */
+  int __m_kind;                   /* Mutex kind: fast, recursive or errcheck */
+  struct _pthread_fastlock __m_lock; /* Underlying fast lock */
+} pthread_mutex_t;
+
+
+/* Attribute for mutex.  */
+typedef struct
+{
+  int __mutexkind;
+} pthread_mutexattr_t;
+
+
+/* Once-only execution */
+typedef int pthread_once_t;
+
+
+#ifdef __USE_UNIX98
+/* Read-write locks.  */
+typedef struct _pthread_rwlock_t
+{
+  struct _pthread_fastlock __rw_lock; /* Lock to guarantee mutual exclusion */
+  int __rw_readers;                   /* Number of readers */
+  _pthread_descr __rw_writer;         /* Identity of writer, or NULL if none */
+  _pthread_descr __rw_read_waiting;   /* Threads waiting for reading */
+  _pthread_descr __rw_write_waiting;  /* Threads waiting for writing */
+  int __rw_kind;                      /* Reader/Writer preference selection */
+  int __rw_pshared;                   /* Shared between processes or not */
+} pthread_rwlock_t;
+
+
+/* Attribute for read-write locks.  */
+typedef struct
+{
+  int __lockkind;
+  int __pshared;
+} pthread_rwlockattr_t;
+#endif
+
+#ifdef __USE_XOPEN2K
+/* POSIX spinlock data type.  */
+typedef __atomic_lock_t pthread_spinlock_t;
+
+/* POSIX barrier. */
+typedef struct {
+  struct _pthread_fastlock __ba_lock; /* Lock to guarantee mutual exclusion */
+  int __ba_required;                  /* Threads needed for completion */
+  int __ba_present;                   /* Threads waiting */
+  _pthread_descr __ba_waiting;        /* Queue of waiting threads */
+} pthread_barrier_t;
+
+/* barrier attribute */
+typedef struct {
+  int __pshared;
+} pthread_barrierattr_t;
+
+#endif
+
+
+/* Thread identifiers */
+typedef unsigned long int pthread_t;
+
+#endif	/* bits/pthreadtypes.h */
diff -urN glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h
--- glibc-2.3.1.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h	2002-08-26 18:39:55.000000000 -0400
+++ glibc-2.3.1/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h	2003-01-15 18:24:49.000000000 -0500
@@ -17,11 +17,23 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+/* Initialize global spinlocks without cast, generally macro wrapped */
+#define __LT_SPINLOCK_ALT_INIT { { 1, 1, 1, 1, } }
+
 /* Initial value of a spinlock.  PA-RISC only implements atomic load
    and clear so this must be non-zero. */
-#define __LT_SPINLOCK_INIT 1
+#define __LT_SPINLOCK_INIT ((__atomic_lock_t) __LT_SPINLOCK_ALT_INIT)
+
+/* Macros for lock initializers, not using the above definition.
+   The above definition is not used in the case that static initializers
+   use this value. */
+#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_ALT_INIT }
+#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_ALT_INIT }
+
+/* Used to initialize _pthread_fastlock's in non-static case */
+#define __LOCK_ALT_INITIALIZER ((struct _pthread_fastlock){ 0, __LT_SPINLOCK_INIT })
+
+/* Tell the rest of the code that the initializer is non-zero without
+   explaining it's internal structure */
+#define __LT_INITIALIZER_NOT_ZERO
 
-/* Macros for lock initializers, using the above definition. */
-#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
-#define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
-#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT }


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Subject: Re: [parisc-linux] [PATCH] oldsemaphore fixup for hppa (4/3?)
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On Fri, Oct 10, 2003 at 05:04:38PM -0400, Carlos O'Donell wrote:
> 
> libc-alpha,
> 
> Wrote up the changelogs, reviewed them, and then forgot I had a small
> patch to commit for oldsemaphore. This goes in with the first patch 1/3
> that defines the generic libc changes required for linuxthreads to work
> on HPPA.
> 
> Cheers,
> Carlos
> ===
> 
> 2003-10-10  Carlos O'Donell  <carlos@baldric.uwo.ca>
> 
> 	* linuxthreads/oldsemaphore.c:	sem_spinlock in struct old_sem_t 
> 	is an __atomic_lock_t.

Patch has been moved into (1/3, Round 2).

c.



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [PATCH] _STACK_GROWS_UP fixes.
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libc-alpha,

Fix stack grows up.
In a stack grows down scenario the stack pointer is between:

BOS <--- SP ---> h_descr

In the stack grows up scenarion we have:

h_descr,BOS <--- SP ---> STACK GUARD

TOS is not stored, and thus the stack guard start address is
used.

This fixes a regression on HPPA where a cancellation signal would
reach the child thread before the thread register had been setup.
In that situation __pthread_self_stack was called to determine
which thread was active, with the logic backwards, and no limit
in place the while loop spun until it encountered garbage that 
caused the logical expression to evaluate to true. This garbage stack 
address was fatal to the proper execution of the program.

Cheers,
Carlos

===
===

2003-10-06  Carlos O'Donell <carlos@baldric.uwo.ca>

	* pthread.c (__pthread_self_stack): _STACK_GROWS_UP case added.
	(__pthread_find_self): Likewise.
	* manager.c (thread_segment): _STACK_GROWS_UP case added.

diff -u -p -r1.131 pthread.c
--- linuxthreads/pthread.c	23 Sep 2003 04:33:01 -0000	1.131
+++ linuxthreads/pthread.c	12 Oct 2003 20:57:53 -0000
@@ -893,7 +893,11 @@ pthread_descr __pthread_find_self(void)
   /* __pthread_handles[0] is the initial thread, __pthread_handles[1] is
      the manager threads handled specially in thread_self(), so start at 2 */
   h = __pthread_handles + 2;
+# ifdef _STACK_GROWS_UP
+  while (! (sp >= (char *) h->h_descr && sp < h->h_descr->p_guardaddr)) h++;
+# else
   while (! (sp <= (char *) h->h_descr && sp >= h->h_bottom)) h++;
+# endif
   return h->h_descr;
 }
 
@@ -908,11 +912,22 @@ pthread_descr __pthread_self_stack(void)
     return manager_thread;
   h = __pthread_handles + 2;
 # ifdef USE_TLS
+#  ifdef _STACK_GROWS_UP
+  while (h->h_descr == NULL
+	 || ! (sp >= h->h_descr->p_stackaddr && 
+	       sp < h->h_descr->p_guardaddr))
+#  else
   while (h->h_descr == NULL
-	 || ! (sp <= (char *) h->h_descr->p_stackaddr && sp >= h->h_bottom))
+	 || ! (sp <= h->h_descr->p_stackaddr && 
+	       sp >= h->h_bottom))
+#  endif
     h++;
 # else
+#  ifdef _STACK_GROWS_UP
+  while (! (sp >= (char *) h->h_descr && sp < h->h_descr->p_guardaddr))
+#  else
   while (! (sp <= (char *) h->h_descr && sp >= h->h_bottom))
+#  endif
     h++;
 # endif
   return h->h_descr;
diff -u -p -r1.95 manager.c
--- linuxthreads/manager.c	12 Aug 2003 03:40:45 -0000	1.95
+++ linuxthreads/manager.c	12 Oct 2003 20:58:00 -0000
@@ -70,8 +70,13 @@ static pthread_descr manager_thread;
 #else
 static inline pthread_descr thread_segment(int seg)
 {
+# ifdef _STACK_GROWS_UP
+  return (pthread_descr)(THREAD_STACK_START_ADDRESS + (seg - 1) * STACK_SIZE)
+         + 1;
+# else
   return (pthread_descr)(THREAD_STACK_START_ADDRESS - (seg - 1) * STACK_SIZE)
          - 1;
+# endif
 }
 #endif
 


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On Sun, Oct 12, 2003 at 11:59:13AM +0000, Joel Soete wrote:
> May be the fix should be:
> --- Makefile.orig	2003-10-12 13:50:43.000000000 +0200
> +++ Makefile	2003-10-12 13:57:57.000000000 +0200
> @@ -627,8 +627,8 @@
>  # Can't rely on distributing these syminks as patches
>  include/user:
>  	@echo '  Making user->usr/include/linux symlink'
> -	@ln -s ../usr/include/linux $@
> -	@ln -s ../usr/include/asm-$(ARCH) include/user-asm
> +	@ln -fsn ../usr/include/linux $@
> +	@ln -fsn ../usr/include/asm-$(ARCH) include/user-asm
> 
>  # 	Split autoconf.h into include/linux/config/*

Argh.  I never intended to check this in.  My apologies.  I'll unbreak it now.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sun, Oct 12, 2003 at 04:07:50PM +0000, Joel Soete wrote:
>         ldo     R%REAL_MODE_PSW(%r1), %r1
>         mtctl   %r1, %cr22
>         mtctl   %r0, %cr17
>         mtctl   %r0, %cr17
> [...]
> 
> Why twice 'mtctl   %r0, %cr17'?

Good question. No clue. Looks like a brain fart since clearing it
 once should work unless there's a weird bug. I'll remove it.

> and also:
> [...]
> fitmanymiddle:                                  /* Loop if LOOP >= 2 */
>         ADDIB>          -1,%r31,fitmanymiddle   /* Adjusted inner loop 
> decr */
>         pitlbe          0(%sr1,%r28)
>         pitlbe,m        %arg1(%sr1,%r28)        /* Last pitlbe and addr 
> adjust */
> 
> Typicaly the function name is flush_..., so why do we 'purge' here?

AFAICT, because purge is sufficient.
It doesn't look like parisc even provides a FITBLE instruction.

thanks,
grant


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On Sun, Oct 12, 2003 at 09:12:58PM -0600, Grant Grundler wrote:
> On Sun, Oct 12, 2003 at 04:07:50PM +0000, Joel Soete wrote:
> > Why twice 'mtctl   %r0, %cr17'?
> 
> Good question. No clue. Looks like a brain fart since clearing it
>  once should work unless there's a weird bug. I'll remove it.

definitely not a brainfart. Read PA2.0 arch book (section 2) where
it talks about cr17/cr18. CR17 is two registers and writing it twice
clear both head/tail of the IIAS. Just like cr18 is also written twice.

sorry for not catching that the first time around.
grant


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Matthew,

2.6.0-test7-pa6 boot well on my b180:
[...]
eth0: Digital DS21143 Tulip rev 65 at 0xff00, 00:10:83:35:2A:A9, IRQ 96.
sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18f
Using anticipatory io scheduler
  Vendor: SEAGATE   Model: ST39140WS         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:5:0: tagged command queuing enabled, command queue depth 16.
  Vendor: SEAGATE   Model: ST39140WS         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:6:0: tagged command queuing enabled, command queue depth 16.
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
st: Version 20030811, fixed bufsize 32768, s/g segs 256
sym0:5: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 sda10 >
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
SCSI device sdb: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sdb: drive cache: write back
 sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 sdb6 sdb7 sdb8 sdb9 sdb10 >
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 5, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 6, lun 0,  type 0
[...]

I trust that confirm it well uses 'scsi0 : sym-2.1.18f' :)

I run successfully ssh, multi-gnome-terminal, gkrellm and mainly recompile
this kernel with gcc-3.3.2 (20030908). All seems to work fine: uptime 2h25min
:)

Congratulation,
    Joel

>-- Original Message --
>Date: Sun, 12 Oct 2003 10:32:40 +0000
>From: Joel Soete <soete.joel@tiscali.be>
>To:  willy@parisc-linux.org
>Subject: Re: [parisc-linux-cvs] linux-2.6 willy
>
>
>Matthew Wilcox wrote:

>CVSROOT:	/var/cvs
>Module name:	linux-2.6
>Changes by:	willy	03/10/10 13:59:56
>
>Modified files:
>	.              : Makefile 
>
>Log message:
>2.6.0-test7-pa5:
>2.1.18f of the sym driver.  I want people to test this 
>ne.
>  
>
Ok Matthew, I will test it on my b180 on monday

hth,
    Joel





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Hi Carlos,

I just haven't such hw at my office where otc i can do some other check on
the b2k model.

On this b2k (also installed with unstable debian) run fine the same release
of evolution (otc what i said).
But it is booted with last 2.4 (a merge of 23-pre7 and 22-pa12) with 256M
of ram (only 128k for c110) and without mozilla-psm (a recommended or suggested
additional pkg added on c110).

So a lot of test to figure out the present pb :)

Thanks a lot ( I will advise you :) )
    Joel

>-- Original Message --
>From: Carlos O'Donell <carlos@baldric.uwo.ca>
>To: Joel Soete <soete.joel@tiscali.be>
>Cc: parisc-linux@parisc-linux.org
>Date: Sun, 12 Oct 2003 16:02:02 -0400
>Subject: Re: [parisc-linux] evolution (1.4.5-1) do_page_fault?
>
>
>On Sun, Oct 12, 2003 at 06:42:55PM +0000, Joel Soete wrote:
> Hello Carlos,
> 
> I launch 'gbd evolution'
> (gdb) run
> to determine the new address in this env but failed before with message:
> Program received signal SIG37, Real-time event 37.

>> 0x4193c574 in malloc_set_state () from /lib/libc.so.6
> 
> what's your opinion?

That's libpthreads realtime singal mechanism working.
You need to set "handle all nostop" and "handle all pass" in gdb.

Then you can do the math with /proc/<pid>
>maps and the dying address to
calculate the _real_ library offset and function symbolic name.

c.
_______________________________________________
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parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman
>listinfo/parisc-linux



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Subject: [parisc-linux] CONGRATULATIONS AND BEST REGARDS.
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LOTTERIA   LA   PRIMITIVA.
AVNIDA DE AMERICA 137, MADRID - ESPAA


FROM: THE DESK OF THE PROMOTIONS MANAGER,
INTERNATIONAL PROMOTIONS/PRIZE AWARD DEPARTMENT,
REF: LP/26510460037/02 BATCH: 24/00319/IPD

                   ( CONGRATULATION)

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(CONGRATULATION)

REGARDS

MR RUBEN GARCIA 
MANAGING DIRECTOR


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> On Sun, Oct 12, 2003 at 09:12:58PM -0600, Grant Grundler wrote:
> > On Sun, Oct 12, 2003 at 04:07:50PM +0000, Joel Soete wrote:
> > > Why twice 'mtctl   %r0, %cr17'?
> > 
> > Good question. No clue. Looks like a brain fart since clearing it
> >  once should work unless there's a weird bug. I'll remove it.
> 
> definitely not a brainfart. Read PA2.0 arch book (section 2) where
> it talks about cr17/cr18. CR17 is two registers and writing it twice
> clear both head/tail of the IIAS. Just like cr18 is also written twice.

Probably, there should be a comment in the code noting this special
behavior.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Mon, Oct 13, 2003 at 02:57:19PM -0400, John David Anglin wrote:
> Probably, there should be a comment in the code noting this special
> behavior.

Done.  They're deliberately a little bit cryptic to ensure that people
actually go and look at the arch book, but they are different so people
don't think this might be a merge error.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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 mu<!-- cockpit -->ch m<!-- paternoster -->ore..<!-- tag --=
>.. <br>Go wit<!-- massey -->h the b<!-- wherever -->est - L<!--=
 contract -->es<!-- abetting -->bia<!-- taxpayer -->ns S<!-- =
idaho -->ex<!-- mystique -->x<a href=3D"http://cowhide@www=
surfbling.com/ls/index.html?demultiplex">&nbsp;</a>
 <a href=3D"http://irritable@www.surfbling.com/ls/index.html?=
soak">-- Now
 off<!-- nigger -->er<!-- congratulatory -->ing F<!-- integral -->=
r<!-- cankerworm -->ee tou<!-- aniseikonic -->r --</a></p></td></tr></t=
able><!-- central --></td></tr></table></td></tr></table>
<table width=3D"462" align=3D"center" height=3D"51"><!-- mendacity -->
<tr><td align=3D"center" valign=3D"middle"><b><a href=3D"http://=
transference@www.surfbling.com/ls/index.html?bragg"><font color=3D"=
#CC0000" face=3D"Arial, Helvetica, sans-serif" size=3D"4">Enter
    h<!-- residual -->e<!-- kibbutzim -->re fo<!-- discussant -->=
r a F<!-- britain -->R<!-- summers -->E<!-- operable -->E to=
<!-- amtrak -->ur</font><font color=3D"#380071" face=3D"Arial, Helve=
tica, sans-serif" size=3D"4"><br>
</font><font size=3D"1" color=3D"#CC0000" face=3D"Arial, Helvetica, sans-s=
erif">Ge<!-- aspen -->t
 a to<!-- brighton -->ur of the h<!-- marksmen -->ott<!-- =
bun -->est le<!-- sanguine -->sbi<!-- sawyer -->an si<!=
-- awesome -->te wi<!-- shay -->thout c<!-- triton -->o=
stin<!-- barfly -->g you a ce<!-- bismarck -->nt. Wh<!-- =
delude -->y not see
 what all the f<!-- divisible -->uss is about!</font></a></b><!-- =
kendall --></td>
</tr></table></body><!-- doctoral -->tcobzebteqmi  lnafpjmwjfxsod
zbg j

--BA1C5C0DB4DA_E5_E.B5--



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Subject: [parisc-linux] PROTECT YOUR CHILDREN From Offensive Language On Your TV With ProtecTV................... sl sptprxhgsisy i g
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--3.9CB95.C0.DEC3.D2.621--



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<body text=3D"#000000" link=3D"#000000" vlink=3D"#000000" alink=3D"#000000=
">
<div align=3D"center"><!-- tart --><font size=3D"5" color=3D"#0000=
00" face=3D"Arial">There's a
  P<!-- texaco -->is<!-- knife -->s P<!-- nightgown -->art=
<!-- freewheel -->y on and you're all invite<!-- cross -->d!</fo=
nt>
<table width=3D"541" height=3D"143" border=3D"6" bgcolor=3D"#FFFF00" class=
=3D"border" bordercolor=3D"#FFCC00"><!-- bravura -->
<tr><!-- dunkirk --><td height=3D"131" align=3D"center" valign=3D"mid=
dle" class=3D"txt" style=3D"padding-left: 15; padding-right: 15"
bgcolor=3D=
"#FFFF99">A
 Very w<!-- refugee -->e<!-- finite -->t site for those who lo<=
!-- anomie -->ve f<!-- gullah -->il<!-- pay -->thy pi=
<!-- wreckage -->ss<!-- kimball -->ing 
 fun during s<!-- agreed -->e<!-- appendage -->x. HU<!-- =
gigabit -->GE database of qua<!-- phillips -->lity pi<!-- =
rain -->ctur<!-- embedded -->es 
 and vid<!-- crony -->eos: Pi<!-- lapel -->ss s<!-- =
argonaut -->how<!-- paulo -->ers, G<!-- frigate -->i<!-- =
minesweeper -->rls p<!-- appendices -->iss<!-- mew -->ing, Hi<=
!-- mineral -->dden toil<!-- platonism -->et 
 s<!-- aau -->pyc<!-- divest -->ams, even fe<!-- =
charcoal -->ma<!-- abroad -->le e<!-- barnyard -->jacu<!-- =
threaten -->latio<!-- dietz -->ns! here's a pi<!-- =
equestrian -->ss p<!-- choctaw -->ar<!-- illusory -->ty on and =
you're all invited to C<!-- edifice -->U<!-- mccall -->M! A
 V<!-- madeleine -->E<!-- quantico -->RY w<!-- telephone -->et s=
ite for those who love f<!-- twombly -->il<!-- beachhead -->thy p<=
!-- clothesbrush -->iss<!-- bianco -->ing fu<!-- caiman -->n!<=
br><br><a href=3D"http://route@www.surfbling.com/pt/index.html?=
ada">E<!-- archibald -->nt<!-- cosec -->er he<!-- =
quantitative -->re to experie<!-- graham -->nce
 it</a></td></tr></table><a href=3D"http://blather@www.surfbling.com/=
pt/index.html?laud">C<!-- combustion -->lic<!-- metropolis -->=
k 
 he<!-- indemnity -->re for ha<!-- soft -->rdco<!-- =
moisten -->re m<!-- vary -->ov<!-- firewood -->ies, li<!-=
- wheelhouse -->ve p<!-- bite -->is<!-- workplace -->sing sh<=
!-- blackberry -->ows, toi<!-- deluxe -->let ca<!-- wellesley -=
->ms,<br> x<!-- tracy -->xx p<!-- arnold -->i<!-- =
roy -->ss pi<!-- ltd -->cs and 
 so<!-- attire -->aki<!-- becker -->ng w<!-- hornet -->e=
t or<!-- lenten -->gie<!-- corporate -->s!</a></div></body>

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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] L2000/N4000 smp devices/boot compare??
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Hi Matthew,

Just comeback to you on this stuff to be sure I well understand :)

>> As I try, without any success :(, to find where 'rules for non-coherent
>aliases'
>> are not respected, I will waiting for a fix.
>
>Well, it's hard.  Consider a page in the page cache.  It has a kernel
>address and one-or-more user addresses.  The user addresses all follow the
>coherency rules but the kernel address doesn't.  If you look in Appendix
F,
>we're not allowed to have multiple write-capable translations to the same
>address.

If I well understand it means that a same real (absolute) address has a different
virtual addresse for each processor?

>I think the only way to solve this is by (ab)using kmap to ensure that
>kernel pages are only accessed via coherent mappings.

I find back an interesting info into <http://lists.parisc-linux.org/pipermail/parisc-linux/1999-December/008101.html>

where it is mentioned 'ping-pong the translations...'.
Do you think it could be a solution?
(btw Do you have any idea where i can find of the detail way to implement
it?)

thanks again,
    Joel

-------------------------------------------------------------------------
L'Internet rapide, c'est pour tout le monde. Tiscali ADSL, 19,50 Euro
pendant 3 mois! http://reg.tiscali.be/default.asp?lg=fr 




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Subject: [parisc-linux] ATI rage xl and C360 (it works!)
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Hello List,

last night I accidentally found this:
http://ftp.fi.muni.cz/pub/linux/sgi/people/ppopov/aty_nobiosinit.patch

and patched 2.4.22-pa12 on my C360.
After that the rage xl seems to work just fine [minor problems with
colors and XFree (fbdev mode) running 1280x1024].

Could anybody who owns such a card (or can easily get one) test it please?
(maybe Joel?)

thanks,

-- 
hinzen


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--DC0703FEF6EA._7E8--



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From: "Luisa Estrada" <mrsluisa_estrada1@tiscali.co.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Luisa
Date: Tue, 14 Oct 2003 14:46:41 -0700
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Hello Dear=2C
It is with heartfelt hope that I write to seek your co-operation and 
assistance
in the context stated below=3A

May I first introduce myself=3A I am Senator Luisa Pimentel Estrada=2Cthe 
first
wife of Joseph Ejercito Estrada=28former head of state and President of 
Philippines=29
who is presently held in detention in a hospital outside 
manilla=2CPhilippines=2E
I got your contact from the internet during the course of my search for
a reliable foreigner who will to assist me in receiving the sum of 
US$20Million
secretly deposited in my favour by my Husband=2E

This money was kept with a Security Company in Amsterdam and I have all
documents with me as of when it was deposited in a Security Vault for 
safe
keeping=2E We have been deliberating on how to invest this fund abroad in
a confidential manner until we came to a conclusion to use it to buy 
estates
and part of it will be used for non-speculative investments in your 
country=2E

However=2Cthe current administration of Gloria Arroyo=28The President of 
Philippines=29
is seeking the death of my husband=2EIn pursuit of this vendetta=2Cthe 
present
Government have resolved to freeze all known assets of Joseph Ejercito 
Estrada
including properties at home and abroad and are presently embarking on 
to
seize the various bank accounts of my Husband in Switzerland=2CUK and 
Australia=2E
In fact=2C the attack on our family =28The Estrada's=29 is so devastated to 
an
extent of seizing our travelling passport=2Cfamily accounts=2Ctrying some 
members
of our family in court for offences allegedly committed by my Husband 
and
even restrict us from seeing my husband=2E

My son was released from detention on the agreement to refund $1=2E5 
million
to the Government of Philippines allegedly stolen by my Husband=2E You 
can
find this on=3B
http=3A=2F=2Flatelinenews=2Ecom=2Fps=2Fenglish=2F29432=2Eshtml
http=3A=2F=2Fwww=2Etime=2Ecom=2Ftime=2Fasia=2Fmagazine=2F2001=2F0129=2Fcover1=2Ehtml

We are not ready to comply to this as most of the family assets and 
bank
accounts abroad have been Frozen by the Arroyo regime=2E In view of this 
grevious
threat to our Economic and personal survival=2C our family trustee have 
secretly
protected the deposit=2C you are to assits us travelling to Amsterdam to 
lay
claims of the consignment with the aid of all legal documents that will
be forwarded to you as time goes on=2E

In the meantime=2Cthere is a travelling embargo on the family members and
our local accounts are seized as well as our telephone lines have been 
bugged=2EFor
this reason=2Ctelephone conversation will not be an ideal means of 
communication
because our calls will be recorded=2EWe are currently being catered for 
by
the Government of Philippines in other to monitor and control our 
financial
activities=2Ewe cannot be held responsible for the sins of my Husband=2E In
view of this plight=2C I expect you to be trustworthy and kind enough to 
respond
to this distressed call to save our family from a hopeless future=2EAnd 
if
you agree to help=2C we shall discuss the disbursement ratio in our next 
correspondence
after we have been acquainted=2E

I look forward to your quick response while thanking you for your 
co-operation=2E
In view of all above details=2C I request you to keep this letter and 
co-operation
highly confidential even if you are not interested=2E

Best wishes=2C

Senator Luisa Pimentel Estrada=2E

NB=3A
Please note that email correspondence will be safer due to the fact 
that
all our phone lines have been bugged=2E









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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] L2000/N4000 smp devices/boot compare??
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On Tue, Oct 14, 2003 at 06:59:52PM +0200, Joel Soete wrote:
> If I well understand it means that a same real (absolute) address
> has a different virtual addresse for each processor?

multiple translations. It can be across processors but doesn't have to be.

> (btw Do you have any idea where i can find of the detail way to implement
> it?)

If someone had worked it out and provided a patch, we probably
be using it. I think that's what you (or someone) needs to do.

sorry, 
grant


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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

I think I've asked this before:

> 	Use __LT_INITIALIZER_NOT_ZERO instead of __LT_SPINLOCK_INIT.

Why?  No unnecessary changes.


guardaddr))
> +#  else
>    while (h->h_descr == NULL
> -	 || ! (sp <= (char *) h->h_descr->p_stackaddr && sp >= h->h_bottom))
> +	 || ! (sp <= (char *) h->h_descr->p_stackaddr && sp >= (char *) h->h_bottom))
> +#  endif

No unnecessary changes.  Leave the code you're not using alone.


>      h++;
>  # else
> -  while (! (sp <= (char *) h->h_descr && sp >= h->h_bottom))
> +#  ifdef _STACK_GROWS_UP

And again.


- -- 
- --------------.                        ,-.            444 Castro Street
Ulrich Drepper \    ,-----------------'   \ Mountain View, CA 94041 USA
Red Hat         `--' drepper at redhat.com `---------------------------
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Jy0mt+OERsR8N35JOFozwPU=
=kNiu
-----END PGP SIGNATURE-----



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On Tue, Oct 14, 2003 at 10:13:24PM -0700, Ulrich Drepper wrote:
> 
> I think I've asked this before:
> 
> > 	Use __LT_INITIALIZER_NOT_ZERO instead of __LT_SPINLOCK_INIT.
> 
> Why?  No unnecessary changes.

__LT_SPINLOCK_INIT is the value of the structure and used for
initialization e.g. { 1, 1, 1, 1 }. It can no longer be used in a macro
evaluation like "#if __LT_SPINLOCK_INIT". Instead the other macros was
added.
 
> No unnecessary changes.  Leave the code you're not using alone.
> And again.

I made the mistake of adding my STACK_GROWS_UP fixes to this patch set.
If you note I have submitted a "Round 2" set of patches that remove
these changes.

Cheeers,
Carlos.



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> 2003-10-12  Carlos O'Donell  <carlos@baldric.uwo.ca>
> 
> 	* sysdeps/hppa/sysdep.h: Undef JUMPTARGET before use.
> 	* sysdeps/unix/sysv/linux/hppa/sysdep.h:
> 	Define __NR_semtimedop for compat with old kernels,
> 	PSEUDO_ERRVAL, SYSCALL_ERROR_LABEL under all conditions,
> 	INTERNAL_SYSCALL_DECL, INTERNAL_SYSCALL_ERROR_P,
> 	INTERNAL_SYSCALL_ERRNO, INTERNAL_SYSCALL, and undef 
> 	JUMPTARGET before use.
> 	[PIC]: Save pic register around syscall.
> 	* sysdeps/unix/sysv/linux/hppa/sysdep.c (syscall): 
> 	Cleanup asm statment.

I've applied this patch, but only because I really don't care how the PA
port looks.

The semtimedop definition is completely wrong.  If you want all
syscall,s use appropriate headers.

You've modified the patch by hand and broke it, forcing me to do clean up.

The coding style is completely wrong and a terrible mess.  The coding
standard document is available, read it.

The preprocessor directive indentation is wrong or non-existing.

- -- 
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Subject: RE: [parisc-linux] ATI rage xl and C360 (it works!)
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Hello,

Great news, I will test it asap (and obviously let you inform).

Many thanks,
    Joel

>-- Original Message --
>From: "Hin.Zen" <hinzen@blah.pl>
>To: parisc-linux@lists.parisc-linux.org
>Date: Tue, 14 Oct 2003 20:20:14 +0200 (CEST)
>Subject: [parisc-linux] ATI rage xl and C360 (it works!)
>
>
>Hello List,

last night I accidentally found this:
http://ftp.fi.muni.cz/pub/linux/sgi/people/ppopov/aty_nobiosinit.patch

and patched 2.4.22-pa12 on my C360.
After that the rage xl seems to work just fine [minor problems with
colors and XFree (
>bdev mode) running 1280x1024].

Could anybody who owns such a card (or can easily get one) test it please?
(maybe Joel?)

thanks,

-- 
hinzen
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc
>linux.org
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Carlos O'Donell wrote:

> 2003-10-06  Carlos O'Donell <carlos@baldric.uwo.ca>
> 
> 	* pthread.c (__pthread_self_stack): _STACK_GROWS_UP case added.
> 	(__pthread_find_self): Likewise.
> 	* manager.c (thread_segment): _STACK_GROWS_UP case added.

Applied after cleaning up.

- -- 
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Carlos O'Donell wrote:

>>>	Use __LT_INITIALIZER_NOT_ZERO instead of __LT_SPINLOCK_INIT.
>>
>>Why?  No unnecessary changes.
> 
> 
> __LT_SPINLOCK_INIT is the value of the structure and used for

The

- -# if __LT_SPINLOCK_INIT != 0
- -  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
- -  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;

part is what I meant.  There is no reason to change the name.

Look at your change, no changes of code which are not needed.  Clean up
the patches to follow the coding standard, preprocessor indentation, etc
etc.

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Grant,

Thanks for all (advise, attention, ...)
    Joel

PS: for me it is already a progress: i finaly reach to understand some concept
as 'aliasing' (still have to understand exatly coherent and no-coherent,
... :) )

>-- Original Message --
>Date: Tue, 14 Oct 2003 22:52:42 -0600
>From: Grant Grundler <grundler@parisc-linux.org>
>To: Joel Soete <soete.joel@tiscali.be>
>Cc: Matthew Wilcox <willy@debian.org>, parisc-linux@parisc-linux.org,
>	Derek Engelhaupt <derekengelhaupt@rocketmail.com>
>Subject: Re: [parisc-linux] L2000/N4000 smp devices/boot compare??
>
>
>On Tue, Oct 14, 2003 at 06:59:52PM +0200, Joel Soete wrote:
> If I well understand it means that a same real (absolute) address
> has a different virtual addresse for each processor?

multiple translations. It can be across processors but doesn't h
>ve to be.

> (btw Do you have any idea where i can find of the detail way to implement
> it?)

If someone had worked it out and provided a patch, we probably
be using it. I think that's what you (or someone) needs to do.

sorry, 
grant



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On Sun, Oct 12, 2003 at 05:37:34PM -0400, Carlos O'Donell wrote:
> 2003-10-06  Carlos O'Donell <carlos@baldric.uwo.ca>
> 
> 	* pthread.c (__pthread_self_stack): _STACK_GROWS_UP case added.
> 	(__pthread_find_self): Likewise.
> 	* manager.c (thread_segment): _STACK_GROWS_UP case added.

You need to look at linuxthreads/attr.c (__pthread_attr_getstack) too
(the recent code which parses /proc/self/maps and finds stack VMA in there).

	Jakub


From - Thu Nov 08 21:29:36 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: RE: [parisc-linux] ATI rage xl and C360 (it works!)
Date: Wed, 15 Oct 2003 13:57:04 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:19828

Hi Hin,

Sorry but on the b180L on wich card is pluged in, i boot a kernel with module
support and build the new atyfb module and when I modprobe it the system
crash (without oops message :( ).
The only message I got is:
atyfb: using auxiliary register aperture
atyfb: 3D RAGE (XL PCI-33MHz) [0x4752 rev 0x27] 8M WRAM, 14.31818 MHz XTAL,
230K

which seems more relevant then previous test (with original atyfb support).

Never the less, I would like very much that it works and so ask you the favor
to send me your .config file to be sure I do not lost anything :) (btw with
your XF86Config-4 :) )

Thanks in advance,
    Joel

>-- Original Message --
>From: "Hin.Zen" <hinzen@blah.pl>
>To: parisc-linux@lists.parisc-linux.org
>Date: Tue, 14 Oct 2003 20:20:14 +0200 (CEST)
>Subject: [parisc-linux] ATI rage xl and C360 (it works!)
>
>
>Hello List,

last night I accidentally found this:
http://ftp.fi.muni.cz/pub/linux/sgi/people/ppopov/aty_nobiosinit.patch

and patched 2.4.22-pa12 on my C360.
After that the rage xl seems to work just fine [minor problems with
colors and XFree (
>bdev mode) running 1280x1024].

Could anybody who owns such a card (or can easily get one) test it please?
(maybe Joel?)

thanks,

-- 
hinzen
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc
>linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: [parisc-linux] [PATCH] SuckyIO still doesn't work
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This patch doesn't make suckyio serial work.  But I think it's along
the right lines.  Anybody else want to play with this, go ahead.

Without the 
+       serial8250_console_init();
line in superio.c, we get:

SuperIO: USB regulator enabled
parport0: PC-style at 0x378, irq 101 [PCSPP(,...)]
Registering serial 0
Registering serial 1
superio_probe(0000:00:0e.2) ven 0x100b dev 0x12 sv 0x0 sd 0x0 class 0xc0310
SuperIO: probe of 0000:00:0e.2 failed with error -1
Soft power switch enabled, polling @ 0xf0400804.
Console: switching to colour frame buffer device 128x48
pty: 256 Unix98 ptys configured
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at I/O 0x3f8 (irq = 99) is a 16550A
(garbage)

With it:

SuperIO: USB regulator enabled
parport0: PC-style at 0x378, irq 101 [PCSPP(,...)]
Registering serial 0
(garbage)

I wonder if possibly we're not unregistering the PDC console properly
so they're both trying to drive the serial port with awful consequences.

Index: arch/parisc/kernel/inventory.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/inventory.c,v
retrieving revision 1.2
diff -u -p -r1.2 inventory.c
--- arch/parisc/kernel/inventory.c	14 Sep 2003 06:37:40 -0000	1.2
+++ arch/parisc/kernel/inventory.c	15 Oct 2003 12:59:05 -0000
@@ -526,7 +526,7 @@ static void __init system_map_inventory(
 	int i;
 	long status = PDC_OK;
     
-#if defined(CONFIG_IOMMU_SBA) && defined(CONFIG_SUPERIO)
+#if defined(CONFIG_IOMMU_SBA) && defined(CONFIG_SUPERIO) && 0
 	/*
 	 * Stop the suckyio usb controller on Astro based systems.
 	 * Otherwise the machine might crash during iommu setup.
Index: arch/parisc/kernel/pdc_cons.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/pdc_cons.c,v
retrieving revision 1.4
diff -u -p -r1.4 pdc_cons.c
--- arch/parisc/kernel/pdc_cons.c	14 Oct 2003 11:33:39 -0000	1.4
+++ arch/parisc/kernel/pdc_cons.c	15 Oct 2003 01:57:05 -0000
@@ -12,7 +12,7 @@
 
 /* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems. 
  * On production kernels EARLY_BOOTUP_DEBUG should be undefined. */
-#undef EARLY_BOOTUP_DEBUG
+#define EARLY_BOOTUP_DEBUG
 
 
 #include <linux/config.h>
Index: drivers/parisc/superio.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/superio.c,v
retrieving revision 1.3
diff -u -p -r1.3 superio.c
--- drivers/parisc/superio.c	28 Sep 2003 21:04:34 -0000	1.3
+++ drivers/parisc/superio.c	15 Oct 2003 13:22:56 -0000
@@ -65,7 +65,9 @@
 #include <linux/ioport.h>
 #include <linux/parport.h>
 #include <linux/parport_pc.h>
-#include <linux/serial_reg.h>
+#include <linux/termios.h>
+#include <linux/tty.h>
+#include <linux/serial_core.h>
 #include <asm/io.h>
 #include <asm/hardware.h>
 #include <asm/irq.h>
@@ -76,7 +78,7 @@ static struct superio_device sio_dev = {
 };
 
 
-#undef DEBUG_INIT
+#define DEBUG_INIT
 
 void
 superio_inform_irq(int irq)
@@ -387,11 +389,27 @@ int superio_fixup_irq(struct pci_dev *pc
 	return(sio_dev.irq_region->data.irqbase + local_irq);
 }
 
+static struct uart_port serial[] = {
+	{
+		.iotype		= UPIO_PORT,
+		.line		= 0,
+		.type		= PORT_16550A,
+		.uartclk	= 115200,
+		.fifosize	= 16,
+	},
+	{
+		.iotype		= UPIO_PORT,
+		.line		= 1,
+		.type		= PORT_16550A,
+		.uartclk	= 115200,
+		.fifosize	= 16,
+	}
+};
+
 void __devinit
 superio_serial_init(void)
 {
 #ifdef CONFIG_SERIAL_8250
-	struct serial_struct *serial;
 	int retval;
 	
 	if (!sio_dev.irq_region)
@@ -400,47 +418,26 @@ superio_serial_init(void)
 	if (!sio_dev.iosapic_irq_enabled)
 		superio_init(&sio_dev);
 
-	serial = kmalloc(2 * sizeof (struct serial_struct), GFP_KERNEL);
-
 	if (!serial) {
 		printk(KERN_WARNING "SuperIO: Could not get memory for serial struct.\n");
 		return;
 	}
 
-	memset(serial, 0, 2 * sizeof (struct serial_struct));
-
-	serial->type = PORT_16550A;
-	serial->line = 0;
-	serial->port = sio_dev.sp1_base;
-	serial->port_high = 0;
+	serial->iobase = sio_dev.sp1_base;
 	serial->irq = sio_dev.irq_region->data.irqbase + SP1_IRQ;
-	serial->io_type = SERIAL_IO_PORT;
-	serial->flags = 0;
-	serial->xmit_fifo_size = 16;
-	serial->custom_divisor = 0;
-	serial->baud_base = 115200;
 
-	retval = register_serial(serial);
+	printk("Registering serial 0\n");
+	retval = early_serial_setup(&serial[0]);
 	if (retval < 0) {
 		printk(KERN_WARNING "SuperIO: Register Serial #0 failed.\n");
-		kfree (serial);
 		return;
 	}
+	serial8250_console_init();
 
-	serial++;
-
-	serial->type = PORT_16550A;
-	serial->line = 1;
-	serial->port = sio_dev.sp2_base;
-	serial->port_high = 0;
+	serial->iobase = sio_dev.sp2_base;
 	serial->irq = sio_dev.irq_region->data.irqbase + SP2_IRQ;
-	serial->io_type = SERIAL_IO_PORT;
-	serial->flags = 0;
-	serial->xmit_fifo_size = 16;
-	serial->custom_divisor = 0;
-	serial->baud_base = 115200;
-
-	retval = register_serial(serial);
+	printk("Registering serial 1\n");
+	retval = early_serial_setup(&serial[1]);
 	if (retval < 0)
 		printk(KERN_WARNING "SuperIO: Register Serial #1 failed.\n");
 #endif /* CONFIG_SERIAL_8250 */
@@ -504,9 +501,7 @@ static int __devinit superio_probe(struc
 #ifdef CONFIG_PARPORT_PC
 		superio_parport_init();
 #endif
-#ifdef CONFIG_SERIAL_8250
 		superio_serial_init();
-#endif
 		/* REVISIT : superio_fdc_init() ? */
 		return 0;
 	} else {
@@ -538,10 +533,5 @@ static void __exit superio_exit(void)
 	pci_unregister_driver(&superio_driver);
 }
 
-/* Make late initcall to ensure the serial and tty layers are initialised
- * before we start superio.
- *
- * FIXME: does this break the superio console?
- */
-late_initcall(superio_modinit);
+module_init(superio_modinit);
 module_exit(superio_exit);

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Ulrich,

> - -# if __LT_SPINLOCK_INIT != 0
> - -  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
> - -  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
> +# ifdef __LT_INITIALIZER_NOT_ZERO
> +  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
> +  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
> 
> part is what I meant.  There is no reason to change the name.

How do you propose it be handled? All arches define __LT_SPINLOCK_INIT
and thus it cannot be used to distinguish between the two cases. Why do
we distinguish between the two cases? Because a structure as an
initializer has two different assignments cases, one in which it is
named and one which it is not.
 
> Look at your change, no changes of code which are not needed.  Clean up
> the patches to follow the coding standard, preprocessor indentation, etc
> etc.

I do apologize for the STACK_GROWS_UP patches being included, and
rightly so I removed them. Thank you for applying those patches.

I will go over my patches again for coding standard, preprocessor
indentation and other grievences. In most cases I have tried to follow 
the standard.

Cheers,
Carlos.



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Re: [PATCH] Sysdeps changes for hppa.
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Ulrich,

> I've applied this patch, but only because I really don't care how the PA
> port looks.

I didn't think the patch was too ugly, but then again a father thinks
all his children are beautiful.

> The semtimedop definition is completely wrong.  If you want all
> syscall,s use appropriate headers.

Moot point. We know why it's there, because changes don't propagate
everywhere as fast as we'd like.

> You've modified the patch by hand and broke it, forcing me to do clean up.

Unforgivable. Please reject patches immediately if this happens again. 
I will produce a correct patch.

> The coding style is completely wrong and a terrible mess.  The coding
> standard document is available, read it.

Suggestions accepted. I will reread the document.
 
> The preprocessor directive indentation is wrong or non-existing.

Never non-existent. Incorrect yes.

Cheers,
Carlos.



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From: JjDunnjr@aol.com
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Subject: [parisc-linux] 715/75 malfunction
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Gentlepersons:
I have a 715/75 workstation.  I have acquired a set of Debian CDs from an 
official source.
Just recently, but now without fail, the w/s won't boot.  The LEDs display 
the following messages:

within 2 seconds: 7-5-4-3-2-1

2 seconds later: 6-1

No messages on the monitor on any of the virtual consoles

Any advice as to which FRU is malfunctioning.
any advice or redirection of this inquiry is appreciated

jack dunn

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<HTML><FONT FACE=3Darial,helvetica><FONT  SIZE=3D2 FAMILY=3D"SANSSERIF" FACE=
=3D"Arial" LANG=3D"0">Gentlepersons:<BR>
I have a 715/75 workstation.&nbsp; I have acquired a set of Debian CDs from=20=
an official source.<BR>
Just recently, but now without fail, the w/s won't boot.&nbsp; The LEDs disp=
lay the following messages:<BR>
<BR>
within 2 seconds: 7-5-4-3-2-1<BR>
<BR>
2 seconds later: 6-1<BR>
<BR>
No messages on the monitor on any of the virtual consoles<BR>
<BR>
Any advice as to which FRU is malfunctioning.<BR>
any advice or redirection of this inquiry is appreciated<BR>
<BR>
jack dunn</FONT></HTML>

--part1_6a.3690d764.2cbeba02_boundary--


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On Wed, Oct 15, 2003 at 07:34:31AM +0200, Jakub Jelinek wrote:
> On Sun, Oct 12, 2003 at 05:37:34PM -0400, Carlos O'Donell wrote:
> > 2003-10-06  Carlos O'Donell <carlos@baldric.uwo.ca>
> > 
> > 	* pthread.c (__pthread_self_stack): _STACK_GROWS_UP case added.
> > 	(__pthread_find_self): Likewise.
> > 	* manager.c (thread_segment): _STACK_GROWS_UP case added.
> 
> You need to look at linuxthreads/attr.c (__pthread_attr_getstack) too
> (the recent code which parses /proc/self/maps and finds stack VMA in there).

That should hopefully explain the regression in tst-attr1, I hadn't
tracked it down yet, but I knew that some other STACK_GROWS_UP problems
might exist.

Thanks Jakub.

c.



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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Carlos O'Donell wrote:
> Ulrich,
> 
> 
>>- -# if __LT_SPINLOCK_INIT != 0
>>- -  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
>>- -  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
>>+# ifdef __LT_INITIALIZER_NOT_ZERO
>>+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
>>+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
>>
>>part is what I meant.  There is no reason to change the name.
> 
> 
> How do you propose it be handled? All arches define __LT_SPINLOCK_INIT

I'm talking about this __LOCK_INITIALIZER -> __LOCK_ALT_INITIALIZER
change.  Why do you claim the right to rename the symbol?

- -- 
- --------------.                        ,-.            444 Castro Street
Ulrich Drepper \    ,-----------------'   \ Mountain View, CA 94041 USA
Red Hat         `--' drepper at redhat.com `---------------------------
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On Wed, 15 Oct 2003, Joel Soete wrote:

> Sorry but on the b180L on wich card is pluged in, i boot a kernel with module
> support and build the new atyfb module and when I modprobe it the system
> crash (without oops message :( ).
> The only message I got is:
> atyfb: using auxiliary register aperture
> atyfb: 3D RAGE (XL PCI-33MHz) [0x4752 rev 0x27] 8M WRAM, 14.31818 MHz XTAL,
> 230K
> 
> which seems more relevant then previous test (with original atyfb support).

Hi Joel,
this is what I read when I modprobe the driver:

...
bigmama:~# modprobe atyfb
atyfb: using auxiliary register aperture
atyfb: 3D RAGE (XL PCI-33MHz) [0x4752 rev 0x27] 8M WRAM, 14.31818 MHz XTAL, 230
MHz PLL, 83 Mhz MCLK, 63 Mhz XCLK
Console: switching to colour frame buffer device 80x30
fb0: ATY Mach64 frame buffer device on PCI
bigmama:~# 
...

I also run a kernel with the driver built-in and it behaves fine.

> Never the less, I would like very much that it works and so ask you the favor
> to send me your .config file to be sure I do not lost anything :) (btw with
> your XF86Config-4 :) )

Please find both configs attached; I hope they'll be helpful.

Thanks,
t.

-- 
hinzen@blah.pl

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On Wed, Oct 15, 2003 at 10:36:57AM -0700, Ulrich Drepper wrote:
> > How do you propose it be handled? All arches define __LT_SPINLOCK_INIT
> 
> I'm talking about this __LOCK_INITIALIZER -> __LOCK_ALT_INITIALIZER
> change.  Why do you claim the right to rename the symbol?

The original __LOCK_INITIALIZER did not have a cast 
to (int).

The new __LOCK_INITIALIZER does not have a cast to 
(struct _pthread_fastlock)

When using a structure in an assignment within a function the named
initializer version is required, such that the constructor can setup the
object. Instead of using __LOCK_INITIALIZER which is already expected to
be of a certain type without a cast, I created __LOCK_ALT_INITIALIZER
and made 2 changes instead of the 6 or more that would be required had I
reversed the semantics.

The same logic applied when I defined __LT_SPINLOCK_ALT_INIT. In order
to minimize changes the default behaviour is to use the named init, the ALT
behaviour does not. The ALT case is hidden inside
__pthread_lock_define_initialized and cannot use a cast.

Should you like, I could reverse the behaviour of the above
__LOCK_ALT_INITIALIZER, but I would have to make changes to initspin.h
and pthread.h so the initialization macros work.

My net is currently down and I cannot verify if initspin.h and pthread.h
are the only files that would require changes.

In summary I chose the semantics to _minimize_ code change. If you
prefer header changes over core .c file changes then I can reverse the
semantics of __LOCK_INITIALIZER with that of the ALT version.

c.



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Is anyone still caring for this in 2.4 or 2.6?  If so, let me know by
private mail; I've got some questions.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hello,

I tried to install linux (specifically gentoo, but the same problem appears
using debian too) and had mysterious kernel freezes.
The guys at gentoo-hppa told me to ask here since they didn't know further.

I have a 9000/720. The computer runs without problem using HP-UX.

I have added a second drive, an IBM, 2GB. Using mediainit from hp-ux reports
no errors.

If I try to put a new filesystem like ext2 or ext3 on the big (about 2gb)
partition, the kernel will freeze while running mkfs. Frreze means no
output, no error messages. The heartbeat stops.
Putting reisers seems to work, but after downloading  and  uncompressing a
big file, i get the same error-less kernel freeze.

this is what dmesg reports:
3. Cobra Core SCSI (10) at 0xf0825000 [2/0/1], versions 0x4, 0x0, 0x71
SCSI subsystem driver Revision: 1.00
scsi0 : LASI SCSI 53c700
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Type:   Direct-Access                      ANSI SCSI revision: 02
  Type:   CD-ROM                             ANSI SCSI revision: 02
SCSI device sda: 2051460 512-byte hdwr sectors (1050 MB)
SCSI device sdb: 4404489 512-byte hdwr sectors (2255 MB)

and this is seen in lsmod:
lasi700                 1684   1
53c700                 27564   0  [lasi700]

thanks, Riccardo



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Hi,

On Wed, 15 Oct 2003 JjDunnjr@aol.com wrote:

> Gentlepersons:
> I have a 715/75 workstation.  I have acquired a set of Debian CDs from an
> official source.
> Just recently, but now without fail, the w/s won't boot.  The LEDs display
> the following messages:
>
> within 2 seconds: 7-5-4-3-2-1
>
> 2 seconds later: 6-1

I had a similar problem on a 715/50 and the workstation became a spares
box (ie, not worth repairing). http://www.openpa.net/led.html has a
listing of LED codes, I think 6-1 is CPU/FPU error, with a solution of
"probably replace mainboard/CPU".

Cheers, Steve


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Subject: RE: [parisc-linux] ATI rage xl and C360 (it works!)
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Thomas,

Thanks a lot, you config file was very helpfull to make it work:
root@fw02:~# modprobe atyfb
atyfb: using auxiliary register aperture
atyfb: 3D RAGE (XL PCI-33MHz) [0x4752 rev 0x27] 8M WRAM, 14.31818 MHz XTAL,
230 MHz PLL, 83 Mhz MCLK, 63 Mhz XCLKConsole: switching to colour frame buffer
device 80x30
fb0: ATY Mach64 frame buffer device on PCI
root@fw02:~# lsmod
Module                  Size  Used by    Not tainted
atyfb                  29232  63 
fbcon-cfb16             5620   0  [atyfb]
fbcon-cfb8              5164   0  [atyfb]
fbcon-cfb32             5780   0  [atyfb]
fbcon-cfb24             5892   0  [atyfb]
root@fw02:~# tail -f /var/log/syslog
[...]
Oct 16 13:16:46 fw02 kernel: atyfb: using auxiliary register aperture
Oct 16 13:16:46 fw02 kernel: atyfb: 3D RAGE (XL PCI-33MHz) [0x4752 rev 0x27]
8M WRAM, 14.31818 MHz XTAL, 230 MHzKOct 16 13:16:46 fw02 kernel: Console:
switching to colour frame buffer device 80x30
Oct 16 13:16:46 fw02 kernel: fb0: ATY Mach64 frame buffer device on PCI

and also fbset works fine:
root@fw02:/Sources# fbset --test

mode "640x480-60"
    # D: 25.172 MHz, H: 31.466 kHz, V: 59.934 Hz
    geometry 640 480 640 480 8
    timings 39726 48 16 33 10 96 2
    accel true
    rgba 8/0,8/0,8/0,0/0
endmode

root@fw02:/Sources# fbset 1024x768-60
root@fw02:/Sources# fbset --test

mode "1024x768-60"
    # D: 64.666 MHz, H: 48.115 kHz, V: 59.696 Hz
    geometry 1024 768 1024 768 8
    timings 15464 160 24 29 3 136 6
    accel true
    rgba 8/0,8/0,8/0,0/0
endmode

:)

Nice :). I just have to make works Xserver (xdm complaining to not find /usr/X11R6/lib/X11/xdm/Xsetup.
I will try to remember why)

Many thanks again,
    Joel

>-- Original Message --
>From: Tomasz Hinzmann <hinzen@blah.pl>
>Reply-To: hinzen@blah.pl
>To: Joel Soete <soete.joel@tiscali.be>
>Cc: parisc-linux@lists.parisc-linux.org
>Date: Wed, 15 Oct 2003 20:21:35 +0200 (CEST)
>Subject: RE: [parisc-linux] ATI rage xl and C360 (it works!)
>
>
>
On Wed, 15 Oct 2003, Joel Soete wrote:

> Sorry but on the b180L on wich card is pluged in, i boot a kernel with
module
> support and build the new atyfb module and when I modprobe it the system
> crash (without oops message :( ).
> The only mes
>age I got is:
> atyfb: using auxiliary register aperture
> atyfb: 3D RAGE (XL PCI-33MHz) [0x4752 rev 0x27] 8M WRAM, 14.31818 MHz XTAL,
> 230K
> 
> which seems more relevant then previous test (with original atyfb support).

Hi Joel,
this is wha
> I read when I modprobe the driver:

...
bigmama:~# modprobe atyfb
atyfb: using auxiliary register aperture
atyfb: 3D RAGE (XL PCI-33MHz) [0x4752 rev 0x27] 8M WRAM, 14.31818 MHz XTAL,
230
MHz PLL, 83 Mhz MCLK, 63 Mhz XCLK
Console: switching to c
>lour frame buffer device 80x30
fb0: ATY Mach64 frame buffer device on PCI
bigmama:~# 
...

I also run a kernel with the driver built-in and it behaves fine.

> Never the less, I would like very much that it works and so ask you the
favor
> to s
>nd me your .config file to be sure I do not lost anything :) (btw with
> your XF86Config-4 :) )

Please find both configs attached; I hope they'll be helpful.

Thanks,
t.

-- 
hinzen@blah.pl

>
>Attachment: XF86Config-4.gz
>
>
>Attachment: config-2.4.22-pa12.gz
>


-------------------------------------------------------------------------
Tiscali ADSL: 3 mois GRATUITS! L'Internet rapide, c'est pour tout le monde.

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On Thu, 16 Oct 2003, Joel Soete wrote:

> Thomas,
>
> Thanks a lot, you config file was very helpfull to make it work:
> root@fw02:~# modprobe atyfb
> atyfb: using auxiliary register aperture
> atyfb: 3D RAGE (XL PCI-33MHz) [0x4752 rev 0x27] 8M WRAM, 14.31818 MHz XTAL,
> 230 MHz PLL, 83 Mhz MCLK, 63 Mhz XCLKConsole: switching to colour frame buffer
> device 80x30
> fb0: ATY Mach64 frame buffer device on PCI

I wonder whether you can also use more recent ATI Radeon graphic cards.
So far I've only seen reports about ATI Rage XL, but does this patch
work with any kind of ATI card?

Thanks,
  Max


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Subject: [parisc-linux] Use and ATI 7xxx PCI in a c3k? (Will buy cards)
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Cc: Joel Soete <soete.joel@tiscali.be>, hinzen@blah.pl,
	parisc-linux@lists.parisc-linux.org
To: "M. Grabert" <xam@cs.ucc.ie>
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On Thu, Oct 16, 2003 at 05:10:39PM +0100, M. Grabert wrote:
> On Thu, 16 Oct 2003, Joel Soete wrote:
> > Thanks a lot, you config file was very helpfull to make it work:
> > root@fw02:~# modprobe atyfb
> > atyfb: using auxiliary register aperture
> > atyfb: 3D RAGE (XL PCI-33MHz) [0x4752 rev 0x27] 8M WRAM, 14.31818 MHz XTAL,
> > 230 MHz PLL, 83 Mhz MCLK, 63 Mhz XCLKConsole: switching to colour frame buffer
> > device 80x30
> > fb0: ATY Mach64 frame buffer device on PCI
> 
> I wonder whether you can also use more recent ATI Radeon graphic cards.
> So far I've only seen reports about ATI Rage XL, but does this patch
> work with any kind of ATI card?

The core chipsets are different, ranging from R100 -> R300. The
development teams were not the same. I've tried to bringup an R300
(Radeon 9700) on a non-x86 arch and it was a big pain. I do not think
that this patch will work for R200's (7xxx series, and 8xxx) or R300's 
(9xxx series). Having said that I've seen seen weirder things work... I
have an R200 AGP and thus I can't try it on my C3K. If anyone has a PCI
ATI 7xxx card I would love to buy it from them for testing :)

c.



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From: Riccardo Mottola <rollei@tiscalinet.it>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] scsi problems on a 720
Date: Thu, 16 Oct 2003 19:29:40 +0200
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	parisc <parisc-linux@lists.parisc-linux.org>
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on 10/16/03 3:05 PM, cbeerse@lycos.nl at cbeerse@lycos.nl wrote:

> I think it is due to the partitioning and formatting of the drive. The
> partition 
> table used on HP-UX differs (a lot) from the partition table used on linux.
> Therefor, an entire disk should be targeted for either linux or hp-ux. And let
> the respective OS do the initialization (partitioning and file-system).
<snip>
> 
> On linux, its `fdisk` or variants like `sfdisk` to do the partitioning. Then
> use 
> mkfs on each partition to create the filesystem. Or let the installer handle
> this.

But I did so. One disk is dedicated to HP-UX and one to linux.
I partitioned the one for linux entirely for linux (fdisk doesn't even
recognize the HP-UX partitioning scheme!)
I said I did a mediainit to prove that the disc has no damaged sectors and
that hp-ux accesses it correctly

-Ric



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In a message dated 10/17/2003 8:31:41 AM Eastern Daylight Time, 
parisc-linux-request@lists.parisc-linux.org writes:

> Message: 1
> Date: Thu, 16 Oct 2003 10:02:20 -0300 (ADT)
> From: Steve Bromwich <lists@fop.ns.ca>
> To: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] 715/75 malfunction
> 
> Hi,
> 
> On Wed, 15 Oct 2003 JjDunnjr@aol.com wrote:
> 
> >Gentlepersons:
> >I have a 715/75 workstation.  I have acquired a set of Debian CDs from an
> >official source.
> >Just recently, but now without fail, the w/s won't boot.  The LEDs display
> >the following messages:
> >
> >within 2 seconds: 7-5-4-3-2-1
> >
> >2 seconds later: 6-1
> 
> I had a similar problem on a 715/50 and the workstation became a spares
> box (ie, not worth repairing). http://www.openpa.net/led.html has a
> listing of LED codes, I think 6-1 is CPU/FPU error, with a solution of
> "probably replace mainboard/CPU".
> 
> Cheers, Steve
> 

Steve:
thanks for the URL.  very helpful.  I will take your advice and find another 
box.
grateful but frustrated
jack dunn

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<HTML><FONT FACE=3Darial,helvetica><FONT  SIZE=3D2 FAMILY=3D"SANSSERIF" FACE=
=3D"Arial" LANG=3D"0">In a message dated 10/17/2003 8:31:41 AM Eastern Dayli=
ght Time, parisc-linux-request@lists.parisc-linux.org writes:<BR>
<BR>
<BLOCKQUOTE TYPE=3DCITE style=3D"BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT=
: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Message: 1<BR>
Date: Thu, 16 Oct 2003 10:02:20 -0300 (ADT)<BR>
From: Steve Bromwich &lt;lists@fop.ns.ca&gt;<BR>
To: parisc-linux@lists.parisc-linux.org<BR>
Subject: Re: [parisc-linux] 715/75 malfunction<BR>
<BR>
Hi,<BR>
<BR>
On Wed, 15 Oct 2003 JjDunnjr@aol.com wrote:<BR>
<BR>
&gt;Gentlepersons:<BR>
&gt;I have a 715/75 workstation.&nbsp; I have acquired a set of Debian CDs f=
rom an<BR>
&gt;official source.<BR>
&gt;Just recently, but now without fail, the w/s won't boot.&nbsp; The LEDs=20=
display<BR>
&gt;the following messages:<BR>
&gt;<BR>
&gt;within 2 seconds: 7-5-4-3-2-1<BR>
&gt;<BR>
&gt;2 seconds later: 6-1<BR>
<BR>
I had a similar problem on a 715/50 and the workstation became a spares<BR>
box (ie, not worth repairing). http://www.openpa.net/led.html has a<BR>
listing of LED codes, I think 6-1 is CPU/FPU error, with a solution of<BR>
"probably replace mainboard/CPU".<BR>
<BR>
Cheers, Steve<BR>
</BLOCKQUOTE><BR>
<BR>
Steve:<BR>
thanks for the URL.&nbsp; very helpful.&nbsp; I will take your advice and fi=
nd another box.<BR>
grateful but frustrated<BR>
jack dunn</FONT></HTML>

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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] hppa glibc 2.3.2-9 available for the brave testers!
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Cc: debian-hppa@lists.debian.org
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parisc-linux,
debian-hppa,

--- CALLING ALL TESTERS! ---

glibc 2.3.2 is complete for HPPA. We've gotten rid of the following
long standing test-suite errors (bug-iconv3, and test-fenv).

The regressions in 2.3.2 were caused by incorrect handling of the PIC
register by the kernel, but fixed in glibc. Most cases for our stack
were handled incorrectly (stack grows up cases), but are fixed in this
release.

ftp://ftp.parisc-linux.org/unofficial-debs/glibc_2.3.2-9_2003-10-16/

Download all the debs and install with:

dpkg -i libc6_*.deb
(Followed by dpkg -i of the rest in any order, libc6 must install first) 

Please do this only if you consider yourself a well seasoned linux-type
person. If that dpkg install fails for any reason you might be in
trouble. I'm running these debs on all my boxes, and I've tested in a
chroot, rebuilt our toolchain, and ran lmbench, gnome-session, nautilus,
and abi-word.

http://www.baldric.uwo.ca/~carlos/a500-gnome-abiword.png

Thanks go out to everyone for all the moral support and fun! 

--- TEST IT AND REPORT BACK ... PLEASE! :) ---

== DISCLAIMER ===
I do not guarantee that these debs won't cause your computer to explode
like a pineapple grenade, showering shrapnel and fiery death on all your
loved ones.
== DISCLAIMER ===

c.



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] glibc 2.3.2-9 for hppa - "when hell freezes over" release
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Cc: parisc-linux@lists.parisc-linux.org, LaMont Jones <lamont@hp.com>
To: debian-glibc@lists.debian.org, Jeff Bailey <jbailey@nisa.net>
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debian-glibc,

Thanks for all the patience, and help from too many people
to name in a short email (you know who you are!) :) 

Please wait 2 days before doing the upload, I am in the process 
of getting other testers to make sure this release is of the
highest quality possible. If the testers do not agree with the
release quality I will request by email a delay of 2 more days 
to repatch and test, followed by an update to the list.

I have done my own internal testing, but this is always limited
compared to the scope of the "common persons" installed system
and hardware.

-- Install procedure --

a. Remove all *hppa* patches from 0list
b. Include just this one .dpatch

I have asked Jeff Bailey to do the upload for me. 
This would place us at 2.3.2-9, and get us back on track.

The .dpatch contains a complete internal listing of all 
the patches I used to generate the larger patch.

I will produce an alternate .dpatch for the nptl branch,
since the cvs.dpatch is newer and will have some of my
upstream patches.

Many thanks,

Cheers,
Carlos.

--H+4ONPRPur6+Ovig
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="glibc232-hppa-full-2003-10-16.dpatch"

#! /bin/sh -e

# All lines beginning with `# DP:' are a description of the patch.
# DP: Description: HPPA Glibc Fixes 2003-10-14 
# DP: Related bugs: 
# DP: Author: Carlos O'Donell <carlos@baldric.uwo.ca>
# DP: Upstream status: Submitted and pending.
# DP: Status Details: Waiting on upstream to review patcfhes/
# DP: Date: 2003-10-16

if [ $# -ne 2 ]; then
    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
    exit 1
fi
case "$1" in
    -patch) patch -d "$2" -f --no-backup-if-mismatch -p1 < $0;;
    -unpatch) patch -d "$2" -f --no-backup-if-mismatch -R -p1 < $0;;
    *)
	echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
	exit 1
esac
exit 0

# Patched with:
#
# Linuxthread fixes:
# patches-2003-10-14/glibc23-00.a-noarch-pthreads
# patches-2003-10-14/glibc23-00.a1-noarch-sgu
# patches-2003-10-14/glibc23-00.b-noarch-sysdeps-pthreads
# patches-2003-10-14/glibc23-00.c2-hppa-pthreads
# patches-2003-10-14/glibc23-01d-hppa-dl-machine
# 
# libgcc compat fixes:
# patches-2003-10-14/glibc23-02-hppa-compat
#
# Introduce atomicity warnings:
# patches-2003-10-14/glibc23-03-hppa-atomicity
#
# Don't align all mallocs at 16:
# patches-2003-10-14/glibc23-04-hppa-malloc8
#
# Sysdep updates including cancellation:
# patches-2003-10-14/glibc23-05n-hppa-sysdep
# patches-2003-10-14/glibc23-06r-hppa-sysdep-cancel
# patches-2003-10-14/glibc23-07b-hppa-sysdep2
#
# Elf entry fix for ld, removes kernel hack:
# patches-2003-10-14/glibc23-09-hppa-entry
#
# Patch to use new atomic structure:
# patches-2003-10-14/glibc23-12-hppa-oldsemaphore
#
# We have sjlj exceptions but compat code was for dwarf:
# patches-2003-10-14/glibc23-13-hppa-framestatefor
#
# Fix function pointer resolving (needs to move to new generic method):
# patches-2003-10-14/glibc23-14-hppa-dlfptr
#
# Fixes getaddrinfo from upstream:
# patches-2003-10-14/glibc23-15-generic-getaddrinfo
#
# Include new pthreadtypes for hppa:
# patches-2003-10-14/glibc23-17b-hppa-pthreadtypes
#
# Fix warnings:
# patches-2003-10-14/glibc23-18-generic-sysctlh
#
# Add semtimedop for hppa:
# patches-2003-10-14/glibc23-19-hppa-semtimedop
#
# Fix symbol resolution issues:
# patches-2003-10-14/glibc23-20c-hppa-ptmachine
#
# Make the kernelstat 64-bit uncompatible:
# patches-2003-10-14/glibc23-21-hppa-kernelstat
#
# Fixup C version of syscalls:
# patches-2003-10-14/glibc23-22c-hppa-sysdepc
#
# Fixes for sjlj versus dwarf compat code:
# patches-2003-10-14/glibc23-23-hppa-unwind-dw2
#
# Allow hppa to get at the linkmap:
# patches-2003-10-14/glibc23-25b-dynamic-link
#
# Fix all of the assembly for hppa fpu code:
# patches-2003-10-14/glibc23-26e-fpu
#
# Add small amount of debugging code to make locale 
# generation easier to understand:
# patches-2003-10-14/glibc23-27-debug-gen-locale
#
# Fixup clone to save/restore pic register:
# patches-2003-10-14/glibc23-28c-hppa-clone
#
# Fixup prototype warnings:
# patches-2003-10-14/glibc23-29-hppa-prototypes
#
# Fixup bad cats:
# patches-2003-10-14/glibc23-30-hppa-casts
#
# Fixup warning:
# patches-2003-10-14/glibc23-31-generic-unix-Makefile
#
# Implement proper non-linuxthread locking:
# patches-2003-10-14/glibc23-32-hppa-thread-m
# patches-2003-10-14/glibc23-32a-hppa-thread-m
#
# Fixup warnings:
# patches-2003-10-14/glibc23-33-generic-internals
#
# These patches generate rejects, and those rejects were then dealt
# with on a per patch basis. Some were discarded others merged.
#

# append the patch here and adjust the -p? flag in the patch calls.
diff -urN glibc-2.3.2.orig/elf/dynamic-link.h glibc-2.3.2/elf/dynamic-link.h
--- glibc-2.3.2.orig/elf/dynamic-link.h	2003-10-14 02:14:23.000000000 -0400
+++ glibc-2.3.2/elf/dynamic-link.h	2003-10-14 02:21:12.000000000 -0400
@@ -29,12 +29,21 @@
 elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
 		  const ElfW(Sym) *sym, const struct r_found_version *version,
 		  ElfW(Addr) *const reloc_addr);
+# if ELF_MACHINE_REL_RELATIVE_NEEDSLINKMAP
+auto void __attribute__((always_inline))
+elf_machine_rel_relative (struct link_map *map, ElfW(Addr) l_addr, const ElfW(Rel) *reloc,
+			  ElfW(Addr) *const reloc_addr);
+auto void __attribute__((always_inline))
+elf_machine_rela_relative (struct link_map *map, ElfW(Addr) l_addr, const ElfW(Rela) *reloc,
+			  ElfW(Addr) *const reloc_addr);
+# else
 auto void __attribute__((always_inline))
 elf_machine_rel_relative (ElfW(Addr) l_addr, const ElfW(Rel) *reloc,
 			  ElfW(Addr) *const reloc_addr);
 auto void __attribute__((always_inline))
 elf_machine_rela_relative (ElfW(Addr) l_addr, const ElfW(Rela) *reloc,
 			   ElfW(Addr) *const reloc_addr);
+# endif
 # if ELF_MACHINE_NO_RELA || defined ELF_MACHINE_PLT_REL
 auto void __attribute__((always_inline))
 elf_machine_lazy_rel (struct link_map *map,
diff -urN glibc-2.3.2.orig/linuxthreads/descr.h glibc-2.3.2/linuxthreads/descr.h
--- glibc-2.3.2.orig/linuxthreads/descr.h	2003-10-14 02:14:24.000000000 -0400
+++ glibc-2.3.2/linuxthreads/descr.h	2003-10-14 02:16:35.000000000 -0400
@@ -71,7 +71,7 @@
 /* Atomic counter made possible by compare_and_swap */
 struct pthread_atomic {
   long p_count;
-  int p_spinlock;
+  __atomic_lock_t p_spinlock;
 };
 
 
diff -urN glibc-2.3.2.orig/linuxthreads/manager.c glibc-2.3.2/linuxthreads/manager.c
--- glibc-2.3.2.orig/linuxthreads/manager.c	2003-10-14 02:14:24.000000000 -0400
+++ glibc-2.3.2/linuxthreads/manager.c	2003-10-14 02:16:35.000000000 -0400
@@ -69,8 +69,13 @@
 #else
 static inline pthread_descr thread_segment(int seg)
 {
+# ifdef _STACK_GROWS_UP
+  return (pthread_descr)(THREAD_STACK_START_ADDRESS + (seg - 1) * STACK_SIZE)
+         + 1;
+# else
   return (pthread_descr)(THREAD_STACK_START_ADDRESS - (seg - 1) * STACK_SIZE)
          - 1;
+# endif
 }
 #endif
 
diff -urN glibc-2.3.2.orig/linuxthreads/oldsemaphore.c glibc-2.3.2/linuxthreads/oldsemaphore.c
--- glibc-2.3.2.orig/linuxthreads/oldsemaphore.c	2001-05-25 03:37:58.000000000 -0400
+++ glibc-2.3.2/linuxthreads/oldsemaphore.c	2003-10-14 02:16:35.000000000 -0400
@@ -31,7 +31,7 @@
 
 typedef struct {
     long int sem_status;
-    int sem_spinlock;
+    __atomic_lock_t sem_spinlock;
 } old_sem_t;
 
 extern int __old_sem_init (old_sem_t *__sem, int __pshared, unsigned int __value);
diff -urN glibc-2.3.2.orig/linuxthreads/pt-machine.c glibc-2.3.2/linuxthreads/pt-machine.c
--- glibc-2.3.2.orig/linuxthreads/pt-machine.c	2002-08-27 00:52:34.000000000 -0400
+++ glibc-2.3.2/linuxthreads/pt-machine.c	2003-10-14 02:16:35.000000000 -0400
@@ -19,7 +19,9 @@
 
 #define PT_EI
 
-extern long int testandset (int *spinlock);
+#include <pthread.h>
+
+extern long int testandset (__atomic_lock_t *spinlock);
 extern int __compare_and_swap (long int *p, long int oldval, long int newval);
 
 #include <pt-machine.h>
diff -urN glibc-2.3.2.orig/linuxthreads/pthread.c glibc-2.3.2/linuxthreads/pthread.c
--- glibc-2.3.2.orig/linuxthreads/pthread.c	2003-10-14 02:14:35.000000000 -0400
+++ glibc-2.3.2/linuxthreads/pthread.c	2003-10-14 02:16:35.000000000 -0400
@@ -299,9 +299,9 @@
   pthread_descr self;
 
   /* First of all init __pthread_handles[0] and [1] if needed.  */
-# if __LT_SPINLOCK_INIT != 0
-  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
-  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
 # endif
 # ifndef SHARED
   /* Unlike in the dynamically linked case the dynamic linker has not
@@ -369,7 +369,7 @@
 # endif
   /* self->p_start_args need not be initialized, it's all zero.  */
   self->p_userstack = 1;
-# if __LT_SPINLOCK_INIT != 0
+# ifdef __LT_INITIALIZER_NOT_ZERO 
   self->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER;
 # endif
   self->p_alloca_cutoff = __MAX_ALLOCA_CUTOFF;
@@ -383,9 +383,9 @@
 #else  /* USE_TLS */
 
   /* First of all init __pthread_handles[0] and [1].  */
-# if __LT_SPINLOCK_INIT != 0
-  __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
-  __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  __pthread_handles[0].h_lock = __LOCK_ALT_INITIALIZER;
+  __pthread_handles[1].h_lock = __LOCK_ALT_INITIALIZER;
 # endif
   __pthread_handles[0].h_descr = &__pthread_initial_thread;
   __pthread_handles[1].h_descr = &__pthread_manager_thread;
@@ -841,7 +841,11 @@
   /* __pthread_handles[0] is the initial thread, __pthread_handles[1] is
      the manager threads handled specially in thread_self(), so start at 2 */
   h = __pthread_handles + 2;
+# ifdef _STACK_GROWS_UP
+  while (! (sp >= (char *) h->h_descr && sp < h->h_descr->p_guardaddr)) h++;
+# else
   while (! (sp <= (char *) h->h_descr && sp >= h->h_bottom)) h++;
+# endif
   return h->h_descr;
 }
 
@@ -856,11 +860,22 @@
     return manager_thread;
   h = __pthread_handles + 2;
 # ifdef USE_TLS
+#  ifdef _STACK_GROWS_UP
+  while (h->h_descr == NULL
+	 || ! (sp >= h->h_descr->p_stackaddr && 
+	       sp < h->h_descr->p_guardaddr))
+#  else
   while (h->h_descr == NULL
-	 || ! (sp <= (char *) h->h_descr->p_stackaddr && sp >= h->h_bottom))
+	 || ! (sp <= h->h_descr->p_stackaddr && 
+	       sp >= h->h_bottom))
+#  endif
     h++;
 # else
+#  ifdef _STACK_GROWS_UP
+  while (! (sp >= (char *) h->h_descr && sp < h->h_descr->p_guardaddr))
+#  else
   while (! (sp <= (char *) h->h_descr && sp >= h->h_bottom))
+#  endif
     h++;
 # endif
   return h->h_descr;
diff -urN glibc-2.3.2.orig/linuxthreads/spinlock.c glibc-2.3.2/linuxthreads/spinlock.c
--- glibc-2.3.2.orig/linuxthreads/spinlock.c	2002-08-29 06:32:02.000000000 -0400
+++ glibc-2.3.2/linuxthreads/spinlock.c	2003-10-14 02:16:35.000000000 -0400
@@ -24,9 +24,9 @@
 #include "spinlock.h"
 #include "restart.h"
 
-static void __pthread_acquire(int * spinlock);
+static void __pthread_acquire(__atomic_lock_t * spinlock);
 
-static inline void __pthread_release(int * spinlock)
+static inline void __pthread_release(__atomic_lock_t * spinlock)
 {
   WRITE_MEMORY_BARRIER();
   *spinlock = __LT_SPINLOCK_INIT;
@@ -269,11 +269,11 @@
 struct wait_node {
   struct wait_node *next;	/* Next node in null terminated linked list */
   pthread_descr thr;		/* The thread waiting with this node */
-  int abandoned;		/* Atomic flag */
+  __atomic_lock_t abandoned;	/* Atomic flag */
 };
 
 static long wait_node_free_list;
-static int wait_node_free_list_spinlock;
+__pthread_lock_define_initialized(static, wait_node_free_list_spinlock);
 
 /* Allocate a new node from the head of the free list using an atomic
    operation, or else using malloc if that list is empty.  A fundamental
@@ -376,7 +376,7 @@
       if (self == NULL)
 	self = thread_self();
 
-      wait_node.abandoned = 0;
+      wait_node.abandoned = __LT_SPINLOCK_INIT;
       wait_node.next = (struct wait_node *) lock->__status;
       wait_node.thr = self;
       lock->__status = (long) &wait_node;
@@ -402,7 +402,7 @@
       wait_node.thr = self;
       newstatus = (long) &wait_node;
     }
-    wait_node.abandoned = 0;
+    wait_node.abandoned = __LT_SPINLOCK_INIT;
     wait_node.next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -451,7 +451,7 @@
       if (self == NULL)
 	self = thread_self();
 
-      p_wait_node->abandoned = 0;
+      p_wait_node->abandoned = __LT_SPINLOCK_INIT;
       p_wait_node->next = (struct wait_node *) lock->__status;
       p_wait_node->thr = self;
       lock->__status = (long) p_wait_node;
@@ -474,7 +474,7 @@
       p_wait_node->thr = self;
       newstatus = (long) p_wait_node;
     }
-    p_wait_node->abandoned = 0;
+    p_wait_node->abandoned = __LT_SPINLOCK_INIT;
     p_wait_node->next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -574,7 +574,7 @@
     while (p_node != (struct wait_node *) 1) {
       int prio;
 
-      if (p_node->abandoned) {
+      if (lock_held(&p_node->abandoned)) {
 	/* Remove abandoned node. */
 #if defined TEST_FOR_COMPARE_AND_SWAP
 	if (!__pthread_has_cas)
@@ -662,7 +662,7 @@
 #if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP
 
 int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                               int * spinlock)
+                               __atomic_lock_t * spinlock)
 {
   int res;
 
@@ -699,7 +699,7 @@
    - When nanosleep() returns, we try again, doing MAX_SPIN_COUNT
      sched_yield(), then sleeping again if needed. */
 
-static void __pthread_acquire(int * spinlock)
+static void __pthread_acquire(__atomic_lock_t * spinlock)	
 {
   int cnt = 0;
   struct timespec tm;
diff -urN glibc-2.3.2.orig/linuxthreads/spinlock.h glibc-2.3.2/linuxthreads/spinlock.h
--- glibc-2.3.2.orig/linuxthreads/spinlock.h	2001-05-24 19:23:00.000000000 -0400
+++ glibc-2.3.2/linuxthreads/spinlock.h	2003-10-14 02:16:35.000000000 -0400
@@ -33,14 +33,28 @@
 #endif
 #endif
 
+/* Define lock_held for all arches that don't need a modified copy. */
+#ifndef __LT_INITIALIZER_NOT_ZERO
+# define lock_held(p) *(p)
+#endif
+
+/* Initliazers for possibly complex structures */
+#ifdef __LT_INITIALIZER_NOT_ZERO
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME = __LT_SPINLOCK_ALT_INIT
+#else
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME
+#endif
+
 #if defined(TEST_FOR_COMPARE_AND_SWAP)
 
 extern int __pthread_has_cas;
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   if (__builtin_expect (__pthread_has_cas, 1))
     return __compare_and_swap(ptr, oldval, newval);
@@ -58,7 +72,7 @@
 
 static inline int
 compare_and_swap_with_release_semantics (long * ptr, long oldval,
-					 long newval, int * spinlock)
+					 long newval, __atomic_lock_t * spinlock)
 {
   return __compare_and_swap_with_release_semantics (ptr, oldval,
 						    newval);
@@ -67,7 +81,7 @@
 #endif
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __compare_and_swap(ptr, oldval, newval);
 }
@@ -75,10 +89,10 @@
 #else
 
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __pthread_compare_and_swap(ptr, oldval, newval, spinlock);
 }
diff -urN glibc-2.3.2.orig/linuxthreads/sysdeps/hppa/pspinlock.c glibc-2.3.2/linuxthreads/sysdeps/hppa/pspinlock.c
--- glibc-2.3.2.orig/linuxthreads/sysdeps/hppa/pspinlock.c	2002-08-27 00:52:35.000000000 -0400
+++ glibc-2.3.2/linuxthreads/sysdeps/hppa/pspinlock.c	2003-10-14 02:16:35.000000000 -0400
@@ -24,13 +24,10 @@
 int
 __pthread_spin_lock (pthread_spinlock_t *lock)
 {
-  unsigned int val;
+  volatile unsigned int *addr = __ldcw_align (lock);
 
-  do
-    asm volatile ("ldcw %1,%0"
-		  : "=r" (val), "=m" (*lock)
-		  : "m" (*lock));
-  while (!val);
+  while (__ldcw (addr) == 0)
+    while (*addr == 0) ;
 
   return 0;
 }
@@ -40,13 +37,9 @@
 int
 __pthread_spin_trylock (pthread_spinlock_t *lock)
 {
-  unsigned int val;
+  volatile unsigned int *a = __ldcw_align (lock);
 
-  asm volatile ("ldcw %1,%0"
-		: "=r" (val), "=m" (*lock)
-		: "m" (*lock));
-
-  return val ? 0 : EBUSY;
+  return __ldcw (a) ? 0 : EBUSY;
 }
 weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
 
@@ -54,7 +47,9 @@
 int
 __pthread_spin_unlock (pthread_spinlock_t *lock)
 {
-  *lock = 1;
+  volatile unsigned int *a = __ldcw_align (lock);
+
+  *a = 1;
   return 0;
 }
 weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
@@ -66,7 +61,9 @@
   /* We can ignore the `pshared' parameter.  Since we are busy-waiting
      all processes which can access the memory location `lock' points
      to can use the spinlock.  */
-  *lock = 1;
+  volatile unsigned int *a = __ldcw_align (lock);
+
+  *a = 1;
   return 0;
 }
 weak_alias (__pthread_spin_init, pthread_spin_init)
diff -urN glibc-2.3.2.orig/linuxthreads/sysdeps/hppa/pt-machine.h glibc-2.3.2/linuxthreads/sysdeps/hppa/pt-machine.h
--- glibc-2.3.2.orig/linuxthreads/sysdeps/hppa/pt-machine.h	2002-08-27 00:52:35.000000000 -0400
+++ glibc-2.3.2/linuxthreads/sysdeps/hppa/pt-machine.h	2003-10-14 02:28:12.000000000 -0400
@@ -1,6 +1,6 @@
 /* Machine-dependent pthreads configuration and inline functions.
    hppa version.
-   Copyright (C) 2000, 2002 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Richard Henderson <rth@tamu.edu>.
 
@@ -22,41 +22,94 @@
 #ifndef _PT_MACHINE_H
 #define _PT_MACHINE_H   1
 
+#include <sys/types.h>
 #include <bits/initspin.h>
 
 #ifndef PT_EI
 # define PT_EI extern inline
 #endif
 
-extern long int testandset (int *spinlock);
-extern int __compare_and_swap (long int *p, long int oldval, long int newval);
+extern inline long int testandset (__atomic_lock_t *spinlock);
+extern inline int __compare_and_swap (long int *p, long int oldval, long int newval);
+extern inline int lock_held (__atomic_lock_t *spinlock); 
+extern inline int __load_and_clear (__atomic_lock_t *spinlock);
 
 /* Get some notion of the current stack.  Need not be exactly the top
    of the stack, just something somewhere in the current frame.  */
 #define CURRENT_STACK_FRAME  stack_pointer
 register char * stack_pointer __asm__ ("%r30");
 
-
+/* Get/Set thread-specific pointer.  We have to call into the kernel to
+   modify it, but we can read it in user mode.  */
+ 
+#define THREAD_SELF __get_cr27()
+ 
+static inline struct _pthread_descr_struct * __get_cr27(void)
+{
+  long cr27;
+  asm("mfctl %%cr27, %0" : "=r" (cr27) : );
+  return (struct _pthread_descr_struct *) cr27;
+}
+ 
+#define INIT_THREAD_SELF(descr, nr) __set_cr27(descr)
+ 
+static inline void __set_cr27(struct _pthread_descr_struct * cr27)
+{
+  asm(	"	ble 0xe0(%%sr2, %%r0)\n"
+	"	copy %0,%%r26"
+	: : "r" (cr27) : "r26" );
+}
+ 
+/* We want the OS to assign stack addresses.  */
+#define FLOATING_STACKS	1
+#define ARCH_STACK_MAX_SIZE	8*1024*1024
+ 
 /* The hppa only has one atomic read and modify memory operation,
    load and clear, so hppa spinlocks must use zero to signify that
-   someone is holding the lock.  */
-
-#define xstr(s) str(s)
-#define str(s) #s
+   someone is holding the lock.  The address used for the ldcw
+   semaphore must be 16-byte aligned.  */
+#define __ldcw(a) ({ \
+  unsigned int __ret;							\
+  __asm__ __volatile__("ldcw 0(%2),%0"					\
+                      : "=r" (__ret), "=m" (*(a)) : "r" (a));		\
+  __ret;								\
+})
+
+/* Because malloc only guarantees 8-byte alignment for malloc'd data,
+   and GCC only guarantees 8-byte alignment for stack locals, we can't
+   be assured of 16-byte alignment for atomic lock data even if we
+   specify "__attribute ((aligned(16)))" in the type declaration.  So,
+   we use a struct containing an array of four ints for the atomic lock
+   type and dynamically select the 16-byte aligned int from the array
+   for the semaphore.  */
+#define __PA_LDCW_ALIGNMENT 16
+#define __ldcw_align(a) ({ \
+  volatile unsigned int __ret = (unsigned int) a;			\
+  if ((__ret & ~(__PA_LDCW_ALIGNMENT - 1)) < (unsigned int) a)		\
+    __ret = (__ret & ~(__PA_LDCW_ALIGNMENT - 1)) + __PA_LDCW_ALIGNMENT; \
+  (unsigned int *) __ret;						\
+})
+  
 /* Spinlock implementation; required.  */
+PT_EI int
+__load_and_clear (__atomic_lock_t *spinlock)
+{
+  volatile unsigned int *a = __ldcw_align (spinlock);
+  return __ldcw (a);
+}
+  
+/* Emulate testandset */
 PT_EI long int
-testandset (int *spinlock)
+testandset (__atomic_lock_t *spinlock)
 {
-  int ret;
-
-  __asm__ __volatile__(
-       "ldcw 0(%2),%0"
-       : "=r"(ret), "=m"(*spinlock)
-       : "r"(spinlock));
-
-  return ret == 0;
+  return (__load_and_clear(spinlock) == 0);
 }
-#undef str
-#undef xstr
-
+  
+PT_EI int
+lock_held (__atomic_lock_t *spinlock)
+{
+  volatile unsigned int *a = __ldcw_align (spinlock);
+  return *a == 0;
+}
+	
 #endif /* pt-machine.h */
diff -urN glibc-2.3.2.orig/linuxthreads/sysdeps/pthread/bits/libc-lock.h glibc-2.3.2/linuxthreads/sysdeps/pthread/bits/libc-lock.h
--- glibc-2.3.2.orig/linuxthreads/sysdeps/pthread/bits/libc-lock.h	2003-10-14 02:14:35.000000000 -0400
+++ glibc-2.3.2/linuxthreads/sysdeps/pthread/bits/libc-lock.h	2003-10-14 02:16:35.000000000 -0400
@@ -71,12 +71,12 @@
    initialized locks must be set to one due to the lack of normal
    atomic operations.) */
 
-#if __LT_SPINLOCK_INIT == 0
+#ifdef __LT_INITIALIZER_NOT_ZERO
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME;
+  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
 #else
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
+  CLASS __libc_lock_t NAME;
 #endif
 
 #define __libc_rwlock_define_initialized(CLASS,NAME) \
diff -urN glibc-2.3.2.orig/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h glibc-2.3.2/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h
--- glibc-2.3.2.orig/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	2003-01-02 18:26:03.000000000 -0500
+++ glibc-2.3.2/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	2003-10-14 02:16:35.000000000 -0400
@@ -22,12 +22,14 @@
 #define __need_schedparam
 #include <bits/sched.h>
 
+typedef int __atomic_lock_t;
+
 /* Fast locks (not abstract because mutexes and conditions aren't abstract). */
 struct _pthread_fastlock
 {
-  long int __status;   /* "Free" or "taken" or head of waiting list */
-  int __spinlock;      /* Used by compare_and_swap emulation. Also,
-			  adaptive SMP lock stores spin count here. */
+  long int __status;		/* "Free" or "taken" or head of waiting list */
+  __atomic_lock_t __spinlock;	/* Used by compare_and_swap emulation. Also,
+				   adaptive SMP lock stores spin count here. */
 };
 
 #ifndef _PTHREAD_DESCR_DEFINED
diff -urN libc.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h
--- libc.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h	2002-08-26 18:39:55.000000000 -0400
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h	2003-10-16 00:37:21.000000000 -0400
@@ -19,9 +19,23 @@
 
 /* Initial value of a spinlock.  PA-RISC only implements atomic load
    and clear so this must be non-zero. */
-#define __LT_SPINLOCK_INIT 1
+#define __LT_SPINLOCK_INIT ((__atomic_lock_t) { { 1, 1, 1, 1 } })
+
+/* Initialize global spinlocks without cast, generally macro wrapped */
+#define __LT_SPINLOCK_ALT_INIT { { 1, 1, 1, 1 } }
+
+/* Macros for lock initializers, not using the above definition.
+   The above definition is not used in the case that static initializers
+   use this value. */
+#define __LOCK_INITIALIZER { __LT_SPINLOCK_ALT_INIT, 0 }
+
+/* Used to initialize _pthread_fastlock's in non-static case */
+#define __LOCK_ALT_INITIALIZER ((struct _pthread_fastlock){ __LT_SPINLOCK_INIT, 0 })
+
+/* Used in pthread_atomic initialization */
+#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_ALT_INIT }
+
+/* Tell the rest of the code that the initializer is non-zero without
+   explaining it's internal structure */
+#define __LT_INITIALIZER_NOT_ZERO
 
-/* Macros for lock initializers, using the above definition. */
-#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
-#define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
-#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT }
diff -urN libc.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h
--- libc.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h	1969-12-31 19:00:00.000000000 -0500
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/pthreadtypes.h	2003-10-16 00:40:11.000000000 -0400
@@ -0,0 +1,160 @@
+/* Linuxthreads - a simple clone()-based implementation of Posix        */
+/* threads for Linux.                                                   */
+/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr)              */
+/*                                                                      */
+/* This program is free software; you can redistribute it and/or        */
+/* modify it under the terms of the GNU Library General Public License  */
+/* as published by the Free Software Foundation; either version 2       */
+/* of the License, or (at your option) any later version.               */
+/*                                                                      */
+/* This program is distributed in the hope that it will be useful,      */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of       */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        */
+/* GNU Library General Public License for more details.                 */
+
+#if !defined _BITS_TYPES_H && !defined _PTHREAD_H
+# error "Never include <bits/pthreadtypes.h> directly; use <sys/types.h> instead."
+#endif
+
+#ifndef _BITS_PTHREADTYPES_H
+#define _BITS_PTHREADTYPES_H	1
+
+#define __need_schedparam
+#include <bits/sched.h>
+
+/* We need 128-bit alignment for the ldcw semaphore.  At most, we are
+   assured of 64-bit alignment for stack locals and malloc'd data.  Thus,
+   we use a struct with four ints for the atomic lock type.  The locking
+   code will figure out which of the four to use for the ldcw semaphore.  */
+typedef volatile struct {
+  int lock[4];
+} __attribute__ ((aligned(16))) __atomic_lock_t;
+
+/* Fast locks (not abstract because mutexes and conditions aren't abstract). */
+struct _pthread_fastlock
+{
+  __atomic_lock_t __spinlock;	/* Used by compare_and_swap emulation.  Also,
+				   adaptive SMP lock stores spin count here. */
+  long int __status;		/* "Free" or "taken" or head of waiting list */
+};
+
+#ifndef _PTHREAD_DESCR_DEFINED
+/* Thread descriptors */
+typedef struct _pthread_descr_struct *_pthread_descr;
+# define _PTHREAD_DESCR_DEFINED
+#endif
+
+
+/* Attributes for threads.  */
+typedef struct __pthread_attr_s
+{
+  int __detachstate;
+  int __schedpolicy;
+  struct __sched_param __schedparam;
+  int __inheritsched;
+  int __scope;
+  size_t __guardsize;
+  int __stackaddr_set;
+  void *__stackaddr;
+  size_t __stacksize;
+} pthread_attr_t;
+
+
+/* Conditions (not abstract because of PTHREAD_COND_INITIALIZER */
+
+#ifdef __GLIBC_HAVE_LONG_LONG
+__extension__ typedef long long __pthread_cond_align_t;
+#else
+typedef long __pthread_cond_align_t;
+#endif
+
+typedef struct
+{
+  struct _pthread_fastlock __c_lock; /* Protect against concurrent access */
+  _pthread_descr __c_waiting;        /* Threads waiting on this condition */
+  char __padding[48 - sizeof (struct _pthread_fastlock)
+		 - sizeof (_pthread_descr) - sizeof (__pthread_cond_align_t)];
+  __pthread_cond_align_t __align;
+} pthread_cond_t;
+
+
+/* Attribute for conditionally variables.  */
+typedef struct
+{
+  int __dummy;
+} pthread_condattr_t;
+
+/* Keys for thread-specific data */
+typedef unsigned int pthread_key_t;
+
+
+/* Mutexes (not abstract because of PTHREAD_MUTEX_INITIALIZER).  */
+/* (The layout is unnatural to maintain binary compatibility
+    with earlier releases of LinuxThreads.) */
+typedef struct
+{
+  int __m_reserved;               /* Reserved for future use */
+  int __m_count;                  /* Depth of recursive locking */
+  _pthread_descr __m_owner;       /* Owner thread (if recursive or errcheck) */
+  int __m_kind;                   /* Mutex kind: fast, recursive or errcheck */
+  struct _pthread_fastlock __m_lock; /* Underlying fast lock */
+} pthread_mutex_t;
+
+
+/* Attribute for mutex.  */
+typedef struct
+{
+  int __mutexkind;
+} pthread_mutexattr_t;
+
+
+/* Once-only execution */
+typedef int pthread_once_t;
+
+
+#ifdef __USE_UNIX98
+/* Read-write locks.  */
+typedef struct _pthread_rwlock_t
+{
+  struct _pthread_fastlock __rw_lock; /* Lock to guarantee mutual exclusion */
+  int __rw_readers;                   /* Number of readers */
+  _pthread_descr __rw_writer;         /* Identity of writer, or NULL if none */
+  _pthread_descr __rw_read_waiting;   /* Threads waiting for reading */
+  _pthread_descr __rw_write_waiting;  /* Threads waiting for writing */
+  int __rw_kind;                      /* Reader/Writer preference selection */
+  int __rw_pshared;                   /* Shared between processes or not */
+} pthread_rwlock_t;
+
+
+/* Attribute for read-write locks.  */
+typedef struct
+{
+  int __lockkind;
+  int __pshared;
+} pthread_rwlockattr_t;
+#endif
+
+#ifdef __USE_XOPEN2K
+/* POSIX spinlock data type.  */
+typedef __atomic_lock_t pthread_spinlock_t;
+
+/* POSIX barrier. */
+typedef struct {
+  struct _pthread_fastlock __ba_lock; /* Lock to guarantee mutual exclusion */
+  int __ba_required;                  /* Threads needed for completion */
+  int __ba_present;                   /* Threads waiting */
+  _pthread_descr __ba_waiting;        /* Queue of waiting threads */
+} pthread_barrier_t;
+
+/* barrier attribute */
+typedef struct {
+  int __pshared;
+} pthread_barrierattr_t;
+
+#endif
+
+
+/* Thread identifiers */
+typedef unsigned long int pthread_t;
+
+#endif	/* bits/pthreadtypes.h */
diff -urN glibc-2.3.2.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h glibc-2.3.2/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h
--- glibc-2.3.2.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h	1969-12-31 19:00:00.000000000 -0500
+++ glibc-2.3.2/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h	2003-10-14 02:16:36.000000000 -0400
@@ -0,0 +1,73 @@
+/* HP-PARISC macro definitions for mutexes, thread-specific data 
+   and parameters for malloc.
+   Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 2003.
+   
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _MALLOC_MACHINE_H
+#define _MALLOC_MACHINE_H
+
+#undef thread_atfork_static
+
+#include <atomic.h>
+#include <bits/libc-lock.h>
+
+__libc_lock_define (typedef, mutex_t)
+
+/* Since our lock structure does not tolerate being initialized to zero, we must
+   modify the standard function calls made by malloc */
+#  define mutex_init(m)		\
+	__libc_maybe_call (__pthread_mutex_init, (m, NULL), \
+		(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT),(*(int *)(m))) )
+#  define mutex_lock(m)		\
+	__libc_maybe_call (__pthread_mutex_lock, (m), \
+			(__load_and_clear(&((m)->__m_lock.__spinlock)), 0))
+#  define mutex_trylock(m)	\
+	__libc_maybe_call (__pthread_mutex_trylock, (m), \
+			(*(int *)(m) ? 1 : (__load_and_clear(&((m)->__m_lock.__spinlock)), 0)))
+#  define mutex_unlock(m)	\
+	__libc_maybe_call (__pthread_mutex_unlock, (m), \
+			(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT), (*(int *)(m))) )
+	
+/* This is defined by newer gcc version unique for each module.  */
+extern void *__dso_handle __attribute__ ((__weak__));
+
+#include <fork.h>
+
+#ifdef SHARED
+# define thread_atfork(prepare, parent, child) \
+   __register_atfork (prepare, parent, child, __dso_handle)
+#else
+# define thread_atfork(prepare, parent, child) \
+   __register_atfork (prepare, parent, child,				      \
+		      &__dso_handle == NULL ? NULL : __dso_handle)
+#endif
+
+/* thread specific data for glibc */
+
+#include <bits/libc-tsd.h>
+
+typedef int tsd_key_t[1];	/* no key data structure, libc magic does it */
+__libc_tsd_define (static, MALLOC)	/* declaration/common definition */
+#define tsd_key_create(key, destr)	((void) (key))
+#define tsd_setspecific(key, data)	__libc_tsd_set (MALLOC, (data))
+#define tsd_getspecific(key, vptr)	((vptr) = __libc_tsd_get (MALLOC))
+
+#include <sysdeps/generic/malloc-machine.h>
+
+#endif /* !defined(_MALLOC_MACHINE_H) */
diff -urN glibc-2.3.2.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h glibc-2.3.2/linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
--- glibc-2.3.2.orig/linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h	1969-12-31 19:00:00.000000000 -0500
+++ glibc-2.3.2/linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h	2003-10-14 02:16:35.000000000 -0400
@@ -0,0 +1,190 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 2003.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+#ifndef __ASSEMBLER__
+# include <linuxthreads/internals.h>
+#endif
+
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
+
+# ifndef NO_ERROR
+#  define NO_ERROR -0x1000
+# endif
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args)				\
+  ENTRY (name)								\
+    SINGLE_THREAD_P					ASM_LINE_SEP	\
+    cmpib,<> 0,%ret0,Lpseudo_cancel			ASM_LINE_SEP	\
+    nop							ASM_LINE_SEP	\
+    DO_CALL(syscall_name, args)				ASM_LINE_SEP	\
+    /* DONE! */						ASM_LINE_SEP	\
+    bv 0(2)						ASM_LINE_SEP	\
+    nop							ASM_LINE_SEP	\
+  Lpseudo_cancel:					ASM_LINE_SEP	\
+    /* store return ptr */				ASM_LINE_SEP	\
+    stw %rp, -20(%sr0,%sp)				ASM_LINE_SEP	\
+    /* save syscall args */				ASM_LINE_SEP	\
+    PUSHARGS_##args /* MACRO */				ASM_LINE_SEP	\
+    STW_PIC						ASM_LINE_SEP	\
+    CENABLE /* FUNC CALL */				ASM_LINE_SEP	\
+    ldo 64(%sp), %sp					ASM_LINE_SEP	\
+    ldo -64(%sp), %sp					ASM_LINE_SEP	\
+    LDW_PIC						ASM_LINE_SEP	\
+    /* restore syscall args */				ASM_LINE_SEP	\
+    POPARGS_##args					ASM_LINE_SEP	\
+    /* save r4 in arg0 stack slot */			ASM_LINE_SEP	\
+    stw %r4, -36(%sr0,%sp)				ASM_LINE_SEP	\
+    /* save mask from cenable */			ASM_LINE_SEP	\
+    copy %ret0, %r4					ASM_LINE_SEP	\
+    ble 0x100(%sr2,%r0)					ASM_LINE_SEP    \
+    ldi SYS_ify (syscall_name), %r20			ASM_LINE_SEP	\
+    LDW_PIC						ASM_LINE_SEP	\
+    /* pass mask as arg0 to cdisable */			ASM_LINE_SEP	\
+    copy %r4, %r26					ASM_LINE_SEP	\
+    copy %ret0, %r4					ASM_LINE_SEP	\
+    CDISABLE						ASM_LINE_SEP	\
+    ldo 64(%sp), %sp					ASM_LINE_SEP	\
+    ldo -64(%sp), %sp					ASM_LINE_SEP	\
+    LDW_PIC						ASM_LINE_SEP	\
+    /* compare error */					ASM_LINE_SEP	\
+    ldi NO_ERROR,%r1					ASM_LINE_SEP	\
+    /* branch if no error */				ASM_LINE_SEP	\
+    cmpb,>>=,n %r1,%r4,Lpre_end				ASM_LINE_SEP	\
+    nop							ASM_LINE_SEP	\
+    SYSCALL_ERROR_HANDLER				ASM_LINE_SEP	\
+    ldo 64(%sp), %sp					ASM_LINE_SEP	\
+    ldo -64(%sp), %sp					ASM_LINE_SEP	\
+    /* No need to LDW_PIC */				ASM_LINE_SEP	\
+    /* make syscall res value positive */		ASM_LINE_SEP	\
+    sub %r0, %r4, %r4					ASM_LINE_SEP	\
+    /* store into errno location */			ASM_LINE_SEP	\
+    stw %r4, 0(%sr0,%ret0)				ASM_LINE_SEP	\
+    /* return -1 */					ASM_LINE_SEP	\
+    ldo -1(%r0), %ret0					ASM_LINE_SEP	\
+  Lpre_end:						ASM_LINE_SEP	\
+    ldw -20(%sr0,%sp), %rp             			ASM_LINE_SEP	\
+    /* No need to LDW_PIC */				ASM_LINE_SEP	\
+    ldw -36(%sr0,%sp), %r4				ASM_LINE_SEP
+
+/* Save arguments into our frame */
+# define PUSHARGS_0	/* nothing to do */
+# define PUSHARGS_1	PUSHARGS_0 stw %r26, -36(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_2	PUSHARGS_1 stw %r25, -40(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_3	PUSHARGS_2 stw %r24, -44(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_4	PUSHARGS_3 stw %r23, -48(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_5	PUSHARGS_4 /* Args are on the stack... */
+# define PUSHARGS_6	PUSHARGS_5
+
+/* Bring them back from the stack */
+# define POPARGS_0	/* nothing to do */
+# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	ASM_LINE_SEP
+# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	ASM_LINE_SEP
+# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	ASM_LINE_SEP
+# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	ASM_LINE_SEP
+# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	ASM_LINE_SEP
+# define POPARGS_6	POPARGS_5 ldw -54(%sr0,%sp), %r21	ASM_LINE_SEP
+
+# ifdef IS_IN_libpthread
+#  ifdef PIC
+#   define CENABLE .import __pthread_enable_asynccancel,code ASM_LINE_SEP \
+			bl __pthread_enable_asynccancel,%r2 ASM_LINE_SEP
+#   define CDISABLE .import __pthread_disable_asynccancel,code ASM_LINE_SEP \
+			bl __pthread_disable_asynccancel,%r2 ASM_LINE_SEP 
+#  else
+#   define CENABLE .import __pthread_enable_asynccancel,code ASM_LINE_SEP \
+			bl __pthread_enable_asynccancel,%r2 ASM_LINE_SEP
+#   define CDISABLE .import __pthread_disable_asynccancel,code ASM_LINE_SEP \
+			bl __pthread_disable_asynccancel,%r2 ASM_LINE_SEP 
+#  endif
+# elif !defined NOT_IN_libc
+#  ifdef PIC
+#   define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_SEP \
+			bl __libc_enable_asynccancel,%r2 ASM_LINE_SEP 
+#   define CDISABLE	.import __libc_disable_asynccancel,code ASM_LINE_SEP \
+			bl __libc_disable_asynccancel,%r2 ASM_LINE_SEP 
+#  else
+#   define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_SEP \
+			bl __libc_enable_asynccancel,%r2 ASM_LINE_SEP 
+#   define CDISABLE	.import __libc_disable_asynccancel,code ASM_LINE_SEP \
+			bl __libc_disable_asynccancel,%r2 ASM_LINE_SEP 
+#  endif
+# else
+#  ifdef PIC
+#   define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_SEP \
+			bl __librt_enable_asynccancel,%r2 ASM_LINE_SEP 
+#   define CDISABLE .import __librt_disable_asynccancel,code ASM_LINE_SEP \
+			bl __librt_disable_asynccancel,%r2 ASM_LINE_SEP 
+#  else
+#   define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_SEP \
+			bl __librt_enable_asynccancel,%r2 ASM_LINE_SEP 
+#   define CDISABLE .import __librt_disable_asynccancel,code ASM_LINE_SEP \
+			bl __librt_disable_asynccancel,%r2 ASM_LINE_SEP 
+#  endif
+# endif	
+
+/* p_header.multiple_threads is +12 from the pthread_descr struct start,
+   We could have called __get_cr27() but we really want less overhead */
+# define MULTIPLE_THREADS_OFFSET 0xC
+
+/* cr27 has been initialized to 0x0 by kernel */
+# define NO_THREAD_CR27 0x0
+			
+# ifdef IS_IN_libpthread
+#  define __local_multiple_threads __pthread_multiple_threads
+# elif !defined NOT_IN_libc
+#  define __local_multiple_threads __libc_multiple_threads
+# else
+#  define __local_multiple_threads __librt_multiple_threads
+# endif
+
+# ifndef __ASSEMBLER__
+ extern int __local_multiple_threads attribute_hidden;
+#  define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
+# else
+/* This ALT version requires newer kernel support */
+#  define SINGLE_THREAD_P_MFCTL						\
+	mfctl %cr27, %ret0					ASM_LINE_SEP	\
+	cmpib,= NO_THREAD_CR27,%ret0,Lstp			ASM_LINE_SEP	\
+	nop							ASM_LINE_SEP	\
+	ldw MULTIPLE_THREADS_OFFSET(%sr0,%ret0),%ret0		ASM_LINE_SEP	\
+ Lstp:								ASM_LINE_SEP	
+#  ifdef PIC
+/* Slower version uses GOT to get value of __local_multiple_threads */
+#   define SINGLE_THREAD_P							\
+	addil LT%__local_multiple_threads, %r19			ASM_LINE_SEP	\
+	ldw RT%__local_multiple_threads(%sr0,%r1), %ret0	ASM_LINE_SEP	\
+	ldw 0(%sr0,%ret0), %ret0 				ASM_LINE_SEP
+#  else
+  /* Slow non-pic version using DP */
+#   define SINGLE_THREAD_P								\
+	addil LR%__local_multiple_threads-$global$,%r27  		ASM_LINE_SEP	\
+	ldw RR%__local_multiple_threads-$global$(%sr0,%r1),%ret0	ASM_LINE_SEP
+#  endif	
+# endif
+#elif !defined __ASSEMBLER__
+
+/* This code should never be used but we define it anyhow.  */
+# define SINGLE_THREAD_P (1)
+
+#endif
+/* !defined NOT_IN_libc || defined IS_IN_libpthread */
+
+
diff -urN glibc-2.3.2.orig/localedata/gen-locale.sh glibc-2.3.2/localedata/gen-locale.sh
--- glibc-2.3.2.orig/localedata/gen-locale.sh	2002-09-20 20:28:20.000000000 -0400
+++ glibc-2.3.2/localedata/gen-locale.sh	2003-10-14 02:16:36.000000000 -0400
@@ -47,6 +47,7 @@
 locale=`echo $locfile|sed 's|\([^.]*\)[.].*/LC_CTYPE|\1|'`
 charmap=`echo $locfile|sed 's|[^.]*[.]\(.*\)/LC_CTYPE|\1|'`
 
+echo "Running \"$0 $common_objpfx $localedef $locfile\""
 echo "Generating locale $locale.$charmap: this might take a while..."
 generate_locale `echo $charmap | sed -e s/SJIS/SHIFT_JIS/` $locale \
 		$locale.$charmap
diff -urN glibc-2.3.2.orig/sysdeps/generic/framestate.c glibc-2.3.2/sysdeps/generic/framestate.c
--- glibc-2.3.2.orig/sysdeps/generic/framestate.c	2003-01-08 00:04:29.000000000 -0500
+++ glibc-2.3.2/sysdeps/generic/framestate.c	2003-10-14 02:16:35.000000000 -0400
@@ -41,7 +41,11 @@
       if (handle == NULL
 	  || (frame_state_for
 	      = (framesf) __libc_dlsym (handle, "__frame_state_for")) == NULL)
+#ifndef __USING_SJLJ_EXCEPTIONS__
 	frame_state_for = fallback_frame_state_for;
+#else
+      	frame_state_for = abort;
+#endif
     }
 
   return frame_state_for (pc, frame_state);
diff -urN glibc-2.3.2.orig/sysdeps/generic/unwind-dw2.c glibc-2.3.2/sysdeps/generic/unwind-dw2.c
--- glibc-2.3.2.orig/sysdeps/generic/unwind-dw2.c	2003-10-14 02:14:25.000000000 -0400
+++ glibc-2.3.2/sysdeps/generic/unwind-dw2.c	2003-10-14 02:17:48.000000000 -0400
@@ -39,7 +39,6 @@
 #endif
 
 
-#ifndef __USING_SJLJ_EXCEPTIONS__
 
 #ifndef STACK_GROWS_DOWNWARD
 #define STACK_GROWS_DOWNWARD 0
@@ -1282,4 +1281,3 @@
 
 #include "unwind.inc"
 
-#endif /* !USING_SJLJ_EXCEPTIONS */
diff -urN glibc-2.3.2.orig/sysdeps/hppa/Dist glibc-2.3.2/sysdeps/hppa/Dist
--- glibc-2.3.2.orig/sysdeps/hppa/Dist	2000-10-27 02:37:01.000000000 -0400
+++ glibc-2.3.2/sysdeps/hppa/Dist	2003-10-14 02:16:35.000000000 -0400
@@ -1,2 +1,3 @@
+libgcc-compat.c
 dl-symaddr.c
 dl-fptr.c
diff -urN glibc-2.3.2.orig/sysdeps/hppa/Makefile glibc-2.3.2/sysdeps/hppa/Makefile
--- glibc-2.3.2.orig/sysdeps/hppa/Makefile	2002-11-19 13:59:51.000000000 -0500
+++ glibc-2.3.2/sysdeps/hppa/Makefile	2003-10-14 02:16:35.000000000 -0400
@@ -22,12 +22,19 @@
 # CFLAGS-.os += -ffunction-sections
 LDFLAGS-c_pic.os += -Wl,--unique=.text*
 
-ifeq ($(subdir),malloc)
-CFLAGS-malloc.c += -DMALLOC_ALIGNMENT=16
-endif
-
 ifeq ($(subdir),elf)
 CFLAGS-rtld.c += -mdisable-fpregs
 dl-routines += dl-symaddr dl-fptr
 rtld-routines += dl-symaddr dl-fptr
 endif
+
+ifeq ($(subdir),csu)
+ifeq (yes,$(build-shared))
+# Compatibility
+ifeq (yes,$(have-protected))
+CPPFLAGS-libgcc-compat.c = -DHAVE_DOT_HIDDEN
+endif
+sysdep_routines += libgcc-compat
+shared-only-routines += libgcc-compat
+endif
+endif
diff -urN glibc-2.3.2.orig/sysdeps/hppa/Versions glibc-2.3.2/sysdeps/hppa/Versions
--- glibc-2.3.2.orig/sysdeps/hppa/Versions	2002-02-01 16:16:41.000000000 -0500
+++ glibc-2.3.2/sysdeps/hppa/Versions	2003-10-14 02:16:35.000000000 -0400
@@ -5,3 +5,8 @@
     _dl_function_address;
   }
 }
+libc {
+  GLIBC_2.2 {
+    __clz_tab;
+  }
+}
diff -urN glibc-2.3.2.orig/sysdeps/hppa/atomicity.h glibc-2.3.2/sysdeps/hppa/atomicity.h
--- glibc-2.3.2.orig/sysdeps/hppa/atomicity.h	1969-12-31 19:00:00.000000000 -0500
+++ glibc-2.3.2/sysdeps/hppa/atomicity.h	2003-10-14 02:16:35.000000000 -0400
@@ -0,0 +1,55 @@
+/* Low-level functions for atomic operations.  HP-PARISC version.
+   Copyright (C) 1997,2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _ATOMICITY_H
+#define _ATOMICITY_H	1
+
+#include <inttypes.h>
+
+#warning stub atomicity functions are not atomic
+#warning CAO This will get implemented soon
+
+static inline int
+__attribute__ ((unused))
+exchange_and_add (volatile uint32_t *mem, int val)
+{
+  int result = *mem;
+  *mem += val;
+  return result;
+}
+
+static inline void
+__attribute__ ((unused))
+atomic_add (volatile uint32_t *mem, int val)
+{
+  *mem += val;
+}
+
+static inline int
+__attribute__ ((unused))
+compare_and_swap (volatile long int *p, long int oldval, long int newval)
+{
+  if (*p != oldval)
+    return 0;
+
+  *p = newval;
+  return 1;
+}
+
+#endif /* atomicity.h */
diff -urN glibc-2.3.2.orig/sysdeps/hppa/dl-fptr.c glibc-2.3.2/sysdeps/hppa/dl-fptr.c
--- glibc-2.3.2.orig/sysdeps/hppa/dl-fptr.c	2002-01-31 19:38:10.000000000 -0500
+++ glibc-2.3.2/sysdeps/hppa/dl-fptr.c	2003-10-14 02:16:35.000000000 -0400
@@ -30,7 +30,7 @@
 # include <pt-machine.h>
 
 /* Remember, we use 0 to mean that a lock is taken on PA-RISC. */
-static int __hppa_fptr_lock = 1;
+static __atomic_lock_t __hppa_fptr_lock = __LT_SPINLOCK_ALT_INIT;
 #endif
 
 /* Because ld.so is now versioned, these functions can be in their own
@@ -127,7 +127,7 @@
 #ifdef _LIBC_REENTRANT
   /* Release the lock.  Again, remember, zero means the lock is taken!  */
   if (mem == NULL)
-    __hppa_fptr_lock = 1;
+    __hppa_fptr_lock = __LT_SPINLOCK_INIT;
 #endif
 
   /* Set bit 30 to indicate to $$dyncall that this is a PLABEL. */
@@ -180,7 +180,7 @@
 
 #ifdef _LIBC_REENTRANT
   /* Release the lock. */
-  __hppa_fptr_lock = 1;
+  __hppa_fptr_lock = __LT_SPINLOCK_INIT;
 #endif
 }
 
@@ -190,6 +190,8 @@
   Elf32_Addr addr = (Elf32_Addr) address;
   struct hppa_fptr *f;
 
+  address = (void *)((unsigned long)address &~ 3); /* Clear the bottom two bits.  See make_fptr. */
+  
 #ifdef _LIBC_REENTRANT
   /* Make sure we are alone.  */
   while (testandset (&__hppa_fptr_lock));
@@ -204,7 +206,7 @@
 
 #ifdef _LIBC_REENTRANT
   /* Release the lock.   */
-  __hppa_fptr_lock = 1;
+  __hppa_fptr_lock = __LT_SPINLOCK_INIT;
 #endif
 
   return addr;
diff -urN glibc-2.3.2.orig/sysdeps/hppa/dl-machine.h glibc-2.3.2/sysdeps/hppa/dl-machine.h
--- glibc-2.3.2.orig/sysdeps/hppa/dl-machine.h	2002-09-28 00:15:38.000000000 -0400
+++ glibc-2.3.2/sysdeps/hppa/dl-machine.h	2003-10-14 02:18:38.000000000 -0400
@@ -1,5 +1,5 @@
 /* Machine-dependent ELF dynamic relocation inline functions.  PA-RISC version.
-   Copyright (C) 1995-1997,1999,2000,2001,2002 Free Software Foundation, Inc.
+   Copyright (C) 1995-1997,1999-2003 Free Software Foundation, Inc.
    Contributed by David Huggins-Daines <dhd@debian.org>
    This file is part of the GNU C Library.
 
@@ -28,8 +28,15 @@
 #include <link.h>
 #include <assert.h>
 
+# define VALID_ELF_OSABI(osabi)		((osabi == ELFOSABI_SYSV) || (osabi == ELFOSABI_LINUX))
+# define VALID_ELF_ABIVERSION(ver)	(ver == 0)
+# define VALID_ELF_HEADER(hdr,exp,size) \
+  memcmp (hdr,exp,size-2) == 0 \
+  && VALID_ELF_OSABI (hdr[EI_OSABI]) \
+  && VALID_ELF_ABIVERSION (hdr[EI_ABIVERSION])
+
 /* These must match the definition of the stub in bfd/elf32-hppa.c. */
-#define SIZEOF_PLT_STUB (4*4)
+#define SIZEOF_PLT_STUB (7*4)
 #define GOT_FROM_PLT_STUB (4*4)
 
 /* A PLABEL is a function descriptor.  Properly they consist of just
@@ -66,45 +73,41 @@
   return ehdr->e_machine == EM_PARISC;
 }
 
-
 /* Return the link-time address of _DYNAMIC.  */
 static inline Elf32_Addr
+elf_machine_dynamic (void) __attribute__ ((const));
+
+static inline Elf32_Addr
 elf_machine_dynamic (void)
 {
   Elf32_Addr dynamic;
 
-#if 0
-  /* Use this method if GOT address not yet set up.  */
-  asm (
-"	b,l	1f,%0\n"
+  asm ("b,l	1f,%0\n"
 "	depi	0,31,2,%0\n"
 "1:	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 8),%0\n"
 "	ldw	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 12)(%%r1),%0\n"
-      : "=r" (dynamic) : : "r1");
-#else
-  /* This works because we already have our GOT address available.  */
-  dynamic = (Elf32_Addr) &_DYNAMIC;
-#endif
+       : "=r" (dynamic) : : "r1");
 
   return dynamic;
 }
 
 /* Return the run-time load address of the shared object.  */
 static inline Elf32_Addr
+elf_machine_load_address (void) __attribute__ ((const));
+
+static inline Elf32_Addr
 elf_machine_load_address (void)
 {
-  Elf32_Addr dynamic, dynamic_linkaddress;
+  Elf32_Addr dynamic;
 
   asm (
 "	b,l	1f,%0\n"
 "	depi	0,31,2,%0\n"
 "1:	addil	L'_DYNAMIC - ($PIC_pcrel$0 - 8),%0\n"
-"	ldo	R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%%r1),%1\n"
-"	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 16),%0\n"
-"	ldw	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 20)(%%r1),%0\n"
-   : "=r" (dynamic_linkaddress), "=r" (dynamic) : : "r1");
+"	ldo	R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%%r1),%0\n"
+   : "=r" (dynamic) : : "r1");
 
-  return dynamic - dynamic_linkaddress;
+  return dynamic - elf_machine_dynamic ();
 }
 
 /* Fixup a PLT entry to bounce directly to the function at VALUE.  */
@@ -167,41 +170,39 @@
 	      fptr = (struct hppa_fptr *) (reloc->r_offset + l_addr);
 	      if (r_sym != 0)
 		{
-		  /* Relocate the pointer to the stub.  */
-		  fptr->func += l_addr;
-		  /* Instead of the LTP value, we put the reloc offset
-		     here.  The trampoline code will load the proper
-		     LTP and pass the reloc offset to the fixup
-		     function.  */
-		  fptr->gp = iplt - jmprel;
 		  if (!got)
 		    {
 		      static union {
 			unsigned char c[8];
 			Elf32_Addr i[2];
 		      } sig = {{0x00,0xc0,0xff,0xee, 0xde,0xad,0xbe,0xef}};
+		      const Elf32_Rela *last_rel;
+
+		      last_rel = (const Elf32_Rela *) end_jmprel - 1;
+
+		      /* The stub is immediately after the last .plt
+			 entry.  Rely on .plt relocs being ordered.  */
+		      if (last_rel->r_offset == 0)
+			return 0;
 
 		      /* Find our .got section.  It's right after the
 			 stub.  */
-		      got = (Elf32_Addr *) (fptr->func + GOT_FROM_PLT_STUB);
+		      got = (Elf32_Addr *) (last_rel->r_offset + l_addr
+					    + 8 + SIZEOF_PLT_STUB);
 
-		      /* Sanity check to see if the address we are
-                         going to check below is within a reasonable
-                         approximation of the bounds of the PLT (or,
-                         at least, is at an address that won't fault
-                         on read).  Then check for the magic signature
-                         above. */
-		      if (fptr->func < (Elf32_Addr) fptr + sizeof(*fptr))
-			  return 0;
-		      if (fptr->func >
-			  ((Elf32_Addr) fptr
-			   + SIZEOF_PLT_STUB
-			   + ((l->l_info[DT_PLTRELSZ]->d_un.d_val / sizeof (Elf32_Rela))
-			      * 8)))
-			return 0;
+		      /* Check the magic signature.  */
 		      if (got[-2] != sig.i[0] || got[-1] != sig.i[1])
 			return 0; /* No lazy linking for you! */
 		    }
+
+		  /* Relocate the pointer to the stub.  */
+		  fptr->func = (Elf32_Addr) got - GOT_FROM_PLT_STUB;
+
+		  /* Instead of the LTP value, we put the reloc offset
+		     here.  The trampoline code will load the proper
+		     LTP and pass the reloc offset to the fixup
+		     function.  */
+		  fptr->gp = iplt - jmprel;
 		}
 	      else
 		{
@@ -271,22 +272,24 @@
 "	stw	%r25,-40(%sp)\n" /* argc */				\
 "	stw	%r24,-44(%sp)\n" /* argv */				\
 									\
-	/* We need the LTP, and we need it now. */			\
-	/* $PIC_pcrel$0 points 8 bytes past the current instruction,	\
-	   just like a branch reloc.  This sequence gets us the runtime	\
-	   address of _DYNAMIC. */					\
+	/* We need the LTP, and we need it now.				\
+	   $PIC_pcrel$0 points 8 bytes past the current instruction,	\
+	   just like a branch reloc.  This sequence gets us the		\
+	   runtime address of _DYNAMIC. */				\
 "	bl	0f,%r19\n"						\
 "	depi	0,31,2,%r19\n"	/* clear priviledge bits */		\
 "0:	addil	L'_DYNAMIC - ($PIC_pcrel$0 - 8),%r19\n"			\
 "	ldo	R'_DYNAMIC - ($PIC_pcrel$0 - 12)(%r1),%r26\n"		\
 									\
-	/* Also get the link time address from the first entry of the GOT.  */ \
+	/* The link time address is stored in the first entry of the	\
+	   GOT.  */							\
 "	addil	L'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 16),%r19\n"	\
 "	ldw	R'_GLOBAL_OFFSET_TABLE_ - ($PIC_pcrel$0 - 20)(%r1),%r20\n" \
 									\
 "	sub	%r26,%r20,%r20\n"	/* Calculate load offset */	\
 									\
-	/* Rummage through the dynamic entries, looking for DT_PLTGOT.  */ \
+	/* Rummage through the dynamic entries, looking for		\
+	   DT_PLTGOT.  */						\
 "	ldw,ma	8(%r26),%r19\n"						\
 "1:	cmpib,=,n 3,%r19,2f\n"	/* tag == DT_PLTGOT? */			\
 "	cmpib,<>,n 0,%r19,1b\n"						\
@@ -306,8 +309,8 @@
 	   |         32 bytes of magic       |				\
 	   |---------------------------------|				\
 	   | 32 bytes argument/sp save area  |				\
-	   |---------------------------------|  ((current->mm->env_end) + 63 & ~63) \
-	   |         N bytes of slack        |				\
+	   |---------------------------------|  ((current->mm->env_end)	\
+	   |         N bytes of slack        |	 + 63 & ~63)		\
 	   |---------------------------------|				\
 	   |      envvar and arg strings     |				\
 	   |---------------------------------|				\
@@ -375,7 +378,7 @@
 "	bl	_dl_init_internal,%r2\n"				\
 "	ldo	4(%r23),%r23\n"	/* delay slot */			\
 									\
-	/* Reload argc, argv  to the registers start.S expects them in (feh) */ \
+	/* Reload argc, argv to the registers start.S expects.  */	\
 "	ldw	-40(%sp),%r25\n"					\
 "	ldw	-44(%sp),%r24\n"					\
 									\
@@ -387,8 +390,8 @@
 "	.word	0xdeadbeef\n"						\
 "	.previous\n"							\
 									\
-	/* %r3 contains a function pointer, we need to mask out the lower \
-	 * bits and load the gp and jump address. */			\
+	/* %r3 contains a function pointer, we need to mask out the	\
+	   lower bits and load the gp and jump address. */		\
 "	depi	0,31,2,%r3\n"						\
 "	ldw	0(%r3),%r2\n"						\
 "	addil	LT'__dl_fini_plabel,%r19\n"				\
@@ -406,43 +409,41 @@
    Enter with r19 = reloc offset, r20 = got-8, r21 = fixup ltp.  */
 #define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name) \
   extern void tramp_name (void);		    \
-  asm ( "\
-	/* Trampoline for " #tramp_name " */				    \n\
-	.globl " #tramp_name "						    \n\
-	.type " #tramp_name ",@function					    \n\
-" #tramp_name ":							    \n\
-	/* Save return pointer */					    \n\
-	stw	%r2,-20(%sp)						    \n\
-	/* Save argument registers in the call stack frame. */		    \n\
-	stw	%r26,-36(%sp)						    \n\
-	stw	%r25,-40(%sp)						    \n\
-	stw	%r24,-44(%sp)						    \n\
-	stw	%r23,-48(%sp)						    \n\
-	/* Build a call frame. */					    \n\
-	stwm	%sp,64(%sp)						    \n\
-									    \n\
-	/* Set up args to fixup func.  */				    \n\
-	ldw	8+4(%r20),%r26	/* got[1] == struct link_map *  */	    \n\
-	copy	%r19,%r25	/* reloc offset  */			    \n\
-									    \n\
-	/* Call the real address resolver. */				    \n\
-	bl	" #fixup_name ",%r2					    \n\
-	copy	%r21,%r19	/* delay slot, set fixup func ltp */	    \n\
-									    \n\
-	ldwm	-64(%sp),%sp						    \n\
-	/* Arguments. */						    \n\
-	ldw	-36(%sp),%r26						    \n\
-	ldw	-40(%sp),%r25						    \n\
-	ldw	-44(%sp),%r24						    \n\
-	ldw	-48(%sp),%r23						    \n\
-	/* Return pointer. */						    \n\
-	ldw	-20(%sp),%r2						    \n\
-	/* Call the real function. */					    \n\
-	ldw	0(%r28),%r22						    \n\
-	bv	%r0(%r22)						    \n\
-	ldw	4(%r28),%r19						    \n\
-");
-
+  asm (".globl " #tramp_name "\n"					\
+ "	.type " #tramp_name ",@function\n"				\
+  #tramp_name ":\n"							\
+ 	/* Save return pointer */					\
+ "	stw	%r2,-20(%sp)\n"						\
+ 	/* Save argument registers in the call stack frame. */		\
+ "	stw	%r26,-36(%sp)\n"					\
+ "	stw	%r25,-40(%sp)\n"					\
+ "	stw	%r24,-44(%sp)\n"					\
+ "	stw	%r23,-48(%sp)\n"					\
+ 	/* Build a call frame, and save structure pointer. */		\
+ "	stwm	%r28,64(%sp)\n"						\
+ 									\
+ 	/* Set up args to fixup func.  */				\
+ "	ldw	8+4(%r20),%r26\n" /* got[1] == struct link_map *  */	\
+ "	copy	%r19,%r25\n"	  /* reloc offset  */			\
+ 									\
+ 	/* Call the real address resolver. */				\
+ "	bl	" #fixup_name ",%r2\n"					\
+ "	copy	%r21,%r19\n"	  /* delay slot, set fixup func ltp */	\
+ 									\
+ "	ldw	0(%r28),%r22\n"	  /* load up the returned func ptr */	\
+ "	ldw	4(%r28),%r19\n"						\
+ "	ldwm	-64(%sp),%r28\n"					\
+ 	/* Arguments. */						\
+ "	ldw	-36(%sp),%r26\n"					\
+ "	ldw	-40(%sp),%r25\n"					\
+ "	ldw	-44(%sp),%r24\n"					\
+ "	ldw	-48(%sp),%r23\n"					\
+ 	/* Call the real function. */					\
+ "	bv	%r0(%r22)\n"						\
+ 	/* Return pointer. */						\
+ "	ldw	-20(%sp),%r2\n"						\
+        );
+  
 #ifndef PROF
 #define ELF_MACHINE_RUNTIME_TRAMPOLINE			\
   TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup);	\
@@ -469,16 +470,32 @@
 /* We only use RELA. */
 #define ELF_MACHINE_NO_REL 1
 
+/* Tell dynamic-link that PA needs the extra link_map structure */
+#define ELF_MACHINE_REL_RELATIVE_NEEDSLINKMAP 1
+#define ELF_MACHINE_RELA_RELATIVE_NEEDSLINKMAP 1
+	
 /* Return the address of the entry point. */
 #define ELF_MACHINE_START_ADDRESS(map, start) \
   DL_FUNCTION_ADDRESS (map, start)
 
+/* We define an initialization functions.  This is called very early in
+ *    _dl_sysdep_start.  */
+#define DL_PLATFORM_INIT dl_platform_init ()
+
+static inline void __attribute__ ((unused))
+dl_platform_init (void)
+{
+	if (GL(dl_platform) != NULL && *GL(dl_platform) == '\0')
+	/* Avoid an empty string which would disturb us.  */
+		GL(dl_platform) = NULL;
+}
+	
 #endif /* !dl_machine_h */
 
 /* These are only actually used where RESOLVE_MAP is defined, anyway. */
 #ifdef RESOLVE_MAP
 
-static inline void
+auto void __attribute__((always_inline))
 elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
 		  const Elf32_Sym *sym, const struct r_found_version *version,
 		  Elf32_Addr *const reloc_addr)
@@ -567,15 +584,15 @@
 	   probably haven't relocated the necessary values by this
 	   point so we have to find them ourselves. */
 
-	asm ("bl	0f,%0						    \n\
-	      depi	0,31,2,%0					    \n\
-0:	      addil	L'__boot_ldso_fptr - ($PIC_pcrel$0 - 8),%0	    \n\
-	      ldo	R'__boot_ldso_fptr - ($PIC_pcrel$0 - 12)(%%r1),%1   \n\
-	      addil	L'__fptr_root - ($PIC_pcrel$0 - 16),%0		    \n\
-	      ldo	R'__fptr_root - ($PIC_pcrel$0 - 20)(%%r1),%2	    \n\
-	      addil	L'__fptr_count - ($PIC_pcrel$0 - 24),%0		    \n\
-	      ldo	R'__fptr_count - ($PIC_pcrel$0 - 28)(%%r1),%3"
-	     :
+ 	asm ("bl	0f,%0\n\t"
+ 	     "depi	0,31,2,%0\n\t"
+ 	     "0:\taddil	L'__boot_ldso_fptr - ($PIC_pcrel$0 - 8),%0\n\t"
+ 	     "ldo	R'__boot_ldso_fptr - ($PIC_pcrel$0 - 12)(%%r1),%1\n\t"
+ 	     "addil	L'__fptr_root - ($PIC_pcrel$0 - 16),%0\n\t"
+ 	     "ldo	R'__fptr_root - ($PIC_pcrel$0 - 20)(%%r1),%2\n\t"
+ 	     "addil	L'__fptr_count - ($PIC_pcrel$0 - 24),%0\n\t"
+ 	     "ldo	R'__fptr_count - ($PIC_pcrel$0 - 28)(%%r1),%3"
+  	     :
 	     "=r" (dot),
 	     "=r" (p_boot_ldso_fptr),
 	     "=r" (p_fptr_root),
@@ -634,7 +651,7 @@
 
 /* hppa doesn't have an R_PARISC_RELATIVE reloc, but uses relocs with
    ELF32_R_SYM (info) == 0 for a similar purpose.  */
-static inline void
+auto void __attribute__((always_inline))
 elf_machine_rela_relative (struct link_map *map, Elf32_Addr l_addr,
 			   const Elf32_Rela *reloc,
 			   Elf32_Addr *const reloc_addr)
@@ -679,7 +696,7 @@
   *reloc_addr = value;
 }
 
-static inline void
+auto void __attribute__((always_inline))
 elf_machine_lazy_rel (struct link_map *map,
 		      Elf32_Addr l_addr, const Elf32_Rela *reloc)
 {
diff -urN glibc-2.3.2.orig/sysdeps/hppa/elf/entry.h glibc-2.3.2/sysdeps/hppa/elf/entry.h
--- glibc-2.3.2.orig/sysdeps/hppa/elf/entry.h	1969-12-31 19:00:00.000000000 -0500
+++ glibc-2.3.2/sysdeps/hppa/elf/entry.h	2003-10-14 02:16:35.000000000 -0400
@@ -0,0 +1,10 @@
+#ifndef __ASSEMBLY__
+extern void _start (void);
+#endif
+
+/* The function's entry point is stored in the first word of the
+   function descriptor (plabel) of _start().  */
+#define ENTRY_POINT ({long int *tmp = (long int *)((long)_start & ~2); tmp[0];})
+
+/* We have to provide a special declaration.  */
+#define ENTRY_POINT_DECL(class) class void _start (void);
diff -urN glibc-2.3.2.orig/sysdeps/hppa/fpu/fclrexcpt.c glibc-2.3.2/sysdeps/hppa/fpu/fclrexcpt.c
--- glibc-2.3.2.orig/sysdeps/hppa/fpu/fclrexcpt.c	2001-07-07 15:21:23.000000000 -0400
+++ glibc-2.3.2/sysdeps/hppa/fpu/fclrexcpt.c	2003-10-14 02:16:36.000000000 -0400
@@ -29,7 +29,7 @@
   __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
 
   /* Clear all the relevant bits. */
-  sw[0] &= ~(excepts & FE_ALL_EXCEPT) << 27;
+  sw[0] &= ~((excepts & FE_ALL_EXCEPT) << 27);
   __asm__ ("fldd 0(%0),%%fr0" : : "r" (sw));
 
   /* Success.  */
diff -urN glibc-2.3.2.orig/sysdeps/hppa/fpu/fegetenv.c glibc-2.3.2/sysdeps/hppa/fpu/fegetenv.c
--- glibc-2.3.2.orig/sysdeps/hppa/fpu/fegetenv.c	2001-07-07 15:21:23.000000000 -0400
+++ glibc-2.3.2/sysdeps/hppa/fpu/fegetenv.c	2003-10-14 02:16:36.000000000 -0400
@@ -23,11 +23,12 @@
 int
 fegetenv (fenv_t *envp)
 {
-  __asm__ (
-	   "fstd %%fr0,0(%2)\n"
-	   "fstd,ma %%fr1,8(%2)\n"
-	   "fstd,ma %%fr2,8(%2)\n"
-	   "fstd %%fr3,0(%2)\n"
-	   : "=m" (*envp), "=r" (envp) : "1" (envp));
+  fenv_t *temp = envp;
+  __asm__ ( "fstd,ma %%fr0,8(%1)\n"
+	    "fstd,ma %%fr1,8(%1)\n"
+	    "fstd,ma %%fr2,8(%1)\n"
+	    "fstd %%fr3,0(%1)\n"
+	    : "=m" (*temp), "+r" (temp)
+	  );  
   return 0;
 }
diff -urN glibc-2.3.2.orig/sysdeps/hppa/fpu/feholdexcpt.c glibc-2.3.2/sysdeps/hppa/fpu/feholdexcpt.c
--- glibc-2.3.2.orig/sysdeps/hppa/fpu/feholdexcpt.c	2001-07-07 15:21:23.000000000 -0400
+++ glibc-2.3.2/sysdeps/hppa/fpu/feholdexcpt.c	2003-10-14 02:16:36.000000000 -0400
@@ -25,36 +25,29 @@
 feholdexcept (fenv_t *envp)
 {
   fenv_t clear;
+  fenv_t * _regs = envp;
 
   /* Store the environment.  */
-  {
-    fenv_t * _regs = envp;
-    __asm__ (
-	     "fstd %%fr0,0(%2)\n"
-	     "fstd,ma %%fr1,8(%2)\n"
-	     "fstd,ma %%fr2,8(%2)\n"
-	     "fstd %%fr3,0(%2)\n"
-	     : "=m" (*_regs), "=r" (_regs) : "1" (_regs));
-    memcpy (&clear, envp, sizeof (clear));
-  }
+  __asm__ ( "fstd,ma %%fr0,8(%1)\n"
+	    "fstd,ma %%fr1,8(%1)\n"
+	    "fstd,ma %%fr2,8(%1)\n"
+	    "fstd %%fr3,0(%1)\n"
+	    : "=m" (*_regs), "+r" (_regs)
+	  );
+  
+  memcpy (&clear, envp, sizeof (clear));
 
-  /* Now clear all exceptions.  */
-  clear.__status_word &= ~(FE_ALL_EXCEPT << 27);
+  /* Now clear all exceptions (Enable bits and flags)  */
+  clear.__status_word &= ~((FE_ALL_EXCEPT << 27) | FE_ALL_EXCEPT);
   memset (clear.__exception, 0, sizeof (clear.__exception));
 
-  /* And set all exceptions to non-stop.  */
-  clear.__status_word &= ~FE_ALL_EXCEPT;
-
   /* Load the new environment. */
-  {
-    fenv_t * _regs = &clear + 1;
-    __asm__ (
-	     "fldd,mb -8(%2),%%fr3\n"
-	     "fldd,mb -8(%2),%%fr2\n"
-	     "fldd,mb -8(%2),%%fr1\n"
-	     "fldd -8(%2),%%fr0\n"
-	     : "=m" (*_regs), "=r" (_regs) : "1" (_regs));
-  }
+  __asm__ ( "fldd,ma -8(%1),%%fr3\n"
+	    "fldd,ma -8(%1),%%fr2\n"
+	    "fldd,ma -8(%1),%%fr1\n"
+	    "fldd 0(%1),%%fr0\n"
+	    : "=m" (*_regs), "+r" (_regs)
+	  );
 
   return 0;
 }
diff -urN glibc-2.3.2.orig/sysdeps/hppa/fpu/fesetenv.c glibc-2.3.2/sysdeps/hppa/fpu/fesetenv.c
--- glibc-2.3.2.orig/sysdeps/hppa/fpu/fesetenv.c	2002-09-09 20:37:31.000000000 -0400
+++ glibc-2.3.2/sysdeps/hppa/fpu/fesetenv.c	2003-10-14 02:16:36.000000000 -0400
@@ -26,24 +26,23 @@
 fesetenv (const fenv_t *envp)
 {
   fenv_t temp;
+  fenv_t * _regs = &temp;
 
   /* Install the environment specified by ENVP.  But there are a few
      values which we do not want to come from the saved environment.
      Therefore, we get the current environment and replace the values
      we want to use from the environment specified by the parameter.  */
-  {
-    fenv_t * _regs = &temp;
-    __asm__ (
-	     "fstd %%fr0,0(%2)\n"
-	     "fstd,ma %%fr1,8(%2)\n"
-	     "fstd,ma %%fr2,8(%2)\n"
-	     "fstd %%fr3,0(%2)\n"
-	     : "=m" (*_regs), "=r" (_regs) : "1" (_regs));
-  }
 
-  temp.__status_word &= ~(FE_ALL_EXCEPT
-			  | (FE_ALL_EXCEPT << 27)
-			  | FE_DOWNWARD);
+  __asm__ ( "fstd,ma %%fr0,8(%1)\n"
+	    "fstd,ma %%fr1,8(%1)\n"
+	    "fstd,ma %%fr2,8(%1)\n"
+	    "fstd %%fr3,0(%1)\n"
+	    : "=m" (*_regs), "+r" (_regs) 
+	  );
+
+  temp.__status_word &= ~((FE_ALL_EXCEPT << 27)
+			  | FE_DOWNWARD 
+			  | FE_ALL_EXCEPT);  
   if (envp == FE_DFL_ENV)
     ;
   else if (envp == FE_NOMASK_ENV)
@@ -55,16 +54,13 @@
 			      | (FE_ALL_EXCEPT << 27)));
 
   /* Load the new environment. */
-  {
-    fenv_t * _regs = &temp + 1;
-    __asm__ (
-	     "fldd,mb -8(%2),%%fr3\n"
-	     "fldd,mb -8(%2),%%fr2\n"
-	     "fldd,mb -8(%2),%%fr1\n"
-	     "fldd -8(%2),%%fr0\n"
-	     : "=m" (*_regs), "=r" (_regs) : "1" (_regs));
-  }
-
+  __asm__ ( "fldd,ma -8(%1),%%fr3\n"
+	    "fldd,ma -8(%1),%%fr2\n"
+	    "fldd,ma -8(%1),%%fr1\n"
+	    "fldd 0(%2),%%fr0\n"
+	    : "=m" (*_regs), "+r" (_regs)
+	  );
+  
   /* Success.  */
   return 0;
 }
diff -urN glibc-2.3.2.orig/sysdeps/hppa/fpu/feupdateenv.c glibc-2.3.2/sysdeps/hppa/fpu/feupdateenv.c
--- glibc-2.3.2.orig/sysdeps/hppa/fpu/feupdateenv.c	2001-07-07 15:21:23.000000000 -0400
+++ glibc-2.3.2/sysdeps/hppa/fpu/feupdateenv.c	2003-10-14 02:16:36.000000000 -0400
@@ -27,14 +27,12 @@
 
   /* Get the current exception status. */
   __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
-  sw[0] &= (FE_ALL_EXCEPT << 27);
-
+  sw[0] &= FE_ALL_EXCEPT;
+  envp->__status_word = envp->__status_word | sw[0];
+  
   /* Install new environment.  */
   fesetenv (envp);
 
-  /* Raise the saved exception. */
-  feraiseexcept (sw[0] >> 27);
-
   /* Success.  */
   return 0;
 }
diff -urN glibc-2.3.2.orig/sysdeps/hppa/fpu/fraiseexcpt.c glibc-2.3.2/sysdeps/hppa/fpu/fraiseexcpt.c
--- glibc-2.3.2.orig/sysdeps/hppa/fpu/fraiseexcpt.c	2002-09-09 20:37:31.000000000 -0400
+++ glibc-2.3.2/sysdeps/hppa/fpu/fraiseexcpt.c	2003-10-14 02:16:36.000000000 -0400
@@ -22,6 +22,9 @@
 #include <float.h>
 #include <math.h>
 
+/* Please see section 10, 
+   page 10-5 "Delayed Trapping" in the PA-RISC 2.0 Architecture manual */
+
 int
 feraiseexcept (int excepts)
 {
@@ -33,58 +36,72 @@
 
   /* We do these bits in assembly to be certain GCC doesn't optimize
      away something important, and so we can force delayed traps to
-     occur.  */
-
-  /* FIXME: These all need verification! */
+     occur. */
 
-  /* First: invalid exception.  */
+  /* We use "fldd 0(%%sr0,%%sp),%0" to flush the delayed exception */
+	
+  /* First: Invalid exception.  */
   if (excepts & FE_INVALID)
     {
       /* One example of a invalid operation is 0 * Infinity.  */
       double d = HUGE_VAL;
-      __asm__ __volatile__ ("fmpy,dbl %1,%%fr0,%0\n\t"
-			    /* FIXME: is this a proper trap barrier? */
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d));
+      __asm__ __volatile__ (
+		"	fcpy,dbl %%fr0,%%fr22\n"
+		"	fmpy,dbl %0,%%fr22,%0\n"
+		"	fldd 0(%%sr0,%%sp),%0"
+		: "+f" (d) : : "%fr22" );
+      printf("%s: FE_INVALID = %d, excepts = %d\n",__FUNCTION__,(int)(excepts & FE_INVALID),excepts);
     }
 
-  /* Next: division by zero.  */
+  /* Second: Division by zero.  */
   if (excepts & FE_DIVBYZERO)
     {
       double d = 1.0;
-      __asm__ __volatile__ ("fdiv,dbl %1,%%fr0,%0\n\t"
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d));
+      __asm__ __volatile__ (
+		"	fcpy,dbl %%fr0,%%fr22\n"
+		"	fdiv,dbl %0,%%fr22,%0\n"
+		"	fldd 0(%%sr0,%%sp),%0"
+		: "+f" (d) : : "%fr22" );
+      printf("%s: FE_DIVBYZERO = %d, excepts = %d\n",__FUNCTION__,(int)(excepts & FE_DIVBYZERO),excepts);
     }
 
-  /* Next: overflow.  */
+  /* Third: Overflow.  */
   /* FIXME: Compare with IA-64 - do we have the same problem? */
   if (excepts & FE_OVERFLOW)
     {
       double d = DBL_MAX;
-
-      __asm__ __volatile__ ("fmpy,dbl %1,%1,%0\n\t"
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d));
+      __asm__ __volatile__ (
+		"	fmpy,dbl %0,%0,%0\n"
+		"	fldd 0(%%sr0,%%sp),%0"
+		: "+f" (d) );
+      printf("%s: FE_OVERFLOW = %d, excepts = %d\n",__FUNCTION__,(int)(excepts & FE_OVERFLOW),excepts);
     }
 
-  /* Next: underflow.  */
+  /* Fourth: Underflow.  */
   if (excepts & FE_UNDERFLOW)
     {
       double d = DBL_MIN;
       double e = 69.69;
-
-      __asm__ __volatile__ ("fdiv,dbl %1,%2,%0\n\t"
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d), "f" (e));
+      __asm__ __volatile__ (
+		"	fdiv,dbl %0,%1,%0\n"
+		"	fldd 0(%%sr0,%%sp),%0"
+		: "+f" (d) : "f" (e) );
+      printf("%s: FE_UNDERFLOW = %d, excepts = %d\n",__FUNCTION__,(int)(excepts & FE_UNDERFLOW),excepts);
     }
 
-  /* Last: inexact.  */
+  /* Fifth: Inexact */
   if (excepts & FE_INEXACT)
     {
       double d = 1.0;
-      double e = M_PI;
-
-      __asm__ __volatile__ ("fdiv,dbl %1,%2,%0\n\t"
-			    "fcpy,dbl %%fr0,%%fr0" : "=f" (d) : "0" (d), "f" (e));
+      double h = 3.0;
+      __asm__ __volatile__ (
+		"	fdiv,dbl %0,%1,%%fr22\n"
+		"	fcnvfxt,dbl,sgl %%fr22,%%fr22L\n"
+		"	fldd 0(%%sr0,%%sp),%%fr22"
+		: "=f" (d), "=f" (h) : : "%fr22" );
+      printf("%s: FE_INEXACT = %d, excepts = %d\n",__FUNCTION__,(int)(excepts & FE_INEXACT),excepts);
     }
-
+	    
   /* Success.  */
   return 0;
 }
diff -urN glibc-2.3.2.orig/sysdeps/hppa/fpu/fsetexcptflg.c glibc-2.3.2/sysdeps/hppa/fpu/fsetexcptflg.c
--- glibc-2.3.2.orig/sysdeps/hppa/fpu/fsetexcptflg.c	2001-07-07 15:21:23.000000000 -0400
+++ glibc-2.3.2/sysdeps/hppa/fpu/fsetexcptflg.c	2003-10-14 02:16:36.000000000 -0400
@@ -29,8 +29,7 @@
   /* Get the current status word. */
   __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
 
-  /* Install the new exception flags bits.  */
-  sw[0] &= ~(excepts & (FE_ALL_EXCEPT >> 27));
+  /* Clear exception flags, and install new neable trap bits  */
   sw[0] |= (*flagp & excepts & FE_ALL_EXCEPT) << 27;
 
   /* Store the new status word.  */
diff -urN glibc-2.3.2.orig/sysdeps/hppa/libgcc-compat.c glibc-2.3.2/sysdeps/hppa/libgcc-compat.c
--- glibc-2.3.2.orig/sysdeps/hppa/libgcc-compat.c	1969-12-31 19:00:00.000000000 -0500
+++ glibc-2.3.2/sysdeps/hppa/libgcc-compat.c	2003-10-14 02:16:35.000000000 -0400
@@ -0,0 +1,43 @@
+/* pre-.hidden libgcc compatibility
+   Copyright (C) 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Randolph Chung
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+
+#include <stdint.h>
+#include <shlib-compat.h>
+
+#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_2_6)
+
+symbol_version (__clz_tab_internal, __clz_tab, GLIBC_2.2);
+
+typedef unsigned int UQItype  __attribute__ ((mode (QI)));
+
+const UQItype __clz_tab_internal[] =
+{
+  0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+  6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+  7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+  7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+  8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+  8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+  8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+  8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+};
+
+#endif
diff -urN glibc-2.3.2.orig/sysdeps/hppa/sysdep.h glibc-2.3.2/sysdeps/hppa/sysdep.h
--- glibc-2.3.2.orig/sysdeps/hppa/sysdep.h	2001-07-07 15:21:23.000000000 -0400
+++ glibc-2.3.2/sysdeps/hppa/sysdep.h	2003-10-14 02:16:35.000000000 -0400
@@ -70,6 +70,7 @@
 #define	PSEUDO_END(name)						      \
   END (name)
 
+#undef JUMPTARGET
 #define JUMPTARGET(name)	name
 #define SYSCALL_PIC_SETUP	/* Nothing.  */
 
diff -urN glibc-2.3.2.orig/sysdeps/posix/getaddrinfo.c glibc-2.3.2/sysdeps/posix/getaddrinfo.c
--- glibc-2.3.2.orig/sysdeps/posix/getaddrinfo.c	2003-10-14 02:14:25.000000000 -0400
+++ glibc-2.3.2/sysdeps/posix/getaddrinfo.c	2003-10-14 02:16:35.000000000 -0400
@@ -53,6 +53,7 @@
 #include <sys/utsname.h>
 #include <net/if.h>
 #include <nsswitch.h>
+#include <stdbool.h>
 
 #define GAIH_OKIFUNSPEC 0x0100
 #define GAIH_EAI        ~(GAIH_OKIFUNSPEC)
diff -urN glibc-2.3.2.orig/sysdeps/unix/Makefile glibc-2.3.2/sysdeps/unix/Makefile
--- glibc-2.3.2.orig/sysdeps/unix/Makefile	2003-10-14 02:14:25.000000000 -0400
+++ glibc-2.3.2/sysdeps/unix/Makefile	2003-10-14 02:16:36.000000000 -0400
@@ -295,6 +295,7 @@
 			  $(..)sysdeps/unix/Makefile
 	$(make-target-directory)
 	(echo '#include <errno.h>'; \
+	 echo 'extern long int _no_syscall(void);'; \
 	 echo 'long int _no_syscall (void)'; \
 	 echo '{ __set_errno (ENOSYS); return -1L; }'; \
 	 for call in $(unix-stub-syscalls); do \
diff -urN glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/clone.S glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/clone.S
--- glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/clone.S	2001-07-07 15:21:34.000000000 -0400
+++ glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/clone.S	2003-10-14 02:16:36.000000000 -0400
@@ -28,6 +28,8 @@
 
 /* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg) */
 
+#warning CAO: __clone needs verification
+
         .text
 ENTRY(__clone)
 	/* FIXME: I have no idea how profiling works on hppa. */
@@ -42,6 +44,11 @@
 	stwm    %arg0,64(%arg1)
 	stw	%arg3,-60(%arg1)
 
+	/* Save the PIC register. */
+#ifdef PIC
+	stw	%r19,-32(%sr0, %sp)	/* parent */
+#endif
+
 	/* Do the system call */
 	copy	%arg2,%arg0
 	ble     0x100(%sr2,%r0)
@@ -53,19 +60,31 @@
 
 	comib,=,n 0,%ret0,thread_start
 
-	/* Successful return from the parent */
+	/* Successful return from the parent
+	   No need to restore the PIC register, 
+	   since we return immediately. */
+
 	bv	%r0(%rp)
 	nop
 
 	/* Something bad happened -- no child created */
 .Lerror:
+
+	/* Restore the PIC register on error */
+#ifdef PIC
+	ldw	-32(%sr0, %sp), %r19	/* parent */
+#endif
+
 	b	__syscall_error
 	sub     %r0,%ret0,%arg0
 
 thread_start:
+
 	/* Load up the arguments.  */
-	ldw	-60(%sp),%arg0
-	ldw     -64(%sp),%r22
+	ldw	-60(%sr0, %sp),%arg0
+	ldw     -64(%sr0, %sp),%r22
+
+	/* FIXME: Don't touch the childs PIC register? */
 
 	/* Call the user's function */
 	bl	$$dyncall,%r31
diff -urN glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/kernel_stat.h glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/kernel_stat.h
--- glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/kernel_stat.h	2002-12-31 15:08:57.000000000 -0500
+++ glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/kernel_stat.h	2003-10-14 02:16:36.000000000 -0400
@@ -1,30 +1,30 @@
-/* definition of "struct stat" from the kernel */
+/* Definition of 'struct stat' taken from kernel, please keep up to date */
 struct kernel_stat {
-	unsigned long	st_dev;		/* dev_t is 32 bits on parisc */
-	unsigned long	st_ino;		/* 32 bits */
+	unsigned int	st_dev;		/* dev_t is 32 bits on parisc */
+	unsigned int	st_ino;		/* 32 bits */
 	unsigned short	st_mode;	/* 16 bits */
 	unsigned short	st_nlink;	/* 16 bits */
 	unsigned short	st_reserved1;	/* old st_uid */
 	unsigned short	st_reserved2;	/* old st_gid */
-	unsigned long	st_rdev;
-	unsigned long   st_size;
+	unsigned int	st_rdev;
+	unsigned int	st_size;
 	struct timespec st_atim;
-	struct timespec st_mtim;
-	struct timespec st_ctim;
-	long		st_blksize;
-	long		st_blocks;
-	unsigned long	__unused1;	/* ACL stuff */
-	unsigned long	__unused2;	/* network */
-	unsigned long	__unused3;	/* network */
-	unsigned long	__unused4;	/* cnodes */
+	struct timespec	st_mtim;
+	struct timespec	st_ctim;
+	int		st_blksize;
+	int		st_blocks;
+	unsigned int	__unused1;	/* ACL stuff */
+	unsigned int	__unused2;	/* network */
+	unsigned int	__unused3;	/* network */
+	unsigned int	__unused4;	/* cnodes */
 	unsigned short	__unused5;	/* netsite */
 	short		st_fstype;
-	unsigned long	st_realdev;
+	unsigned int	st_realdev;
 	unsigned short	st_basemode;
 	unsigned short	st_spareshort;
-	unsigned long	st_uid;
-	unsigned long   st_gid;
-	unsigned long	st_spare4[3];
+	unsigned int	st_uid;
+	unsigned int	st_gid;
+	unsigned int	st_spare4[3];
 };
 
 #define _HAVE_STAT_NSEC
diff -urN glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/mmap.c glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/mmap.c
--- glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/mmap.c	2001-07-07 15:21:34.000000000 -0400
+++ glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/mmap.c	2003-10-14 02:16:36.000000000 -0400
@@ -37,7 +37,7 @@
 	
 	__ptr_t ret;
 
-	ret = INLINE_SYSCALL(mmap, 6, addr, len, prot, flags, fd, offset);
+	ret = (__ptr_t)INLINE_SYSCALL(mmap, 6, addr, len, prot, flags, fd, offset);
 
 	/* check if it's really a negative number */
 	if(((unsigned long)ret & 0xfffff000) == 0xfffff000)
diff -urN glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/syscalls.list glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/syscalls.list
--- glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/syscalls.list	2003-01-30 22:39:32.000000000 -0500
+++ glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/syscalls.list	2003-10-14 02:16:36.000000000 -0400
@@ -10,6 +10,7 @@
 shmdt		-	shmdt		i:s	__shmdt		shmdt
 shmget		-	shmget		i:iii	__shmget	shmget
 semop		-	semop		i:ipi	__semop		semop
+semtimedop      -       semtimedop      i:ipip  semtimedop
 semget		-	semget		i:iii	__semget	semget
 semctl		-	semctl		i:iiii	__semctl	semctl
 
diff -urN glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/sysdep.c glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/sysdep.c
--- glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/sysdep.c	2002-10-11 14:58:53.000000000 -0400
+++ glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/sysdep.c	2003-10-14 02:16:36.000000000 -0400
@@ -19,6 +19,10 @@
 #include <sysdep.h>
 #include <errno.h>
 
+extern int __syscall_error(int err_no);
+extern int syscall (int sysnum, int arg0, int arg1, int arg2, 
+			int arg3, int arg4, int arg5);
+
 /* This routine is jumped to by all the syscall handlers, to stash
    an error number into errno.  */
 int
@@ -30,25 +34,31 @@
 
 
 /* HPPA implements syscall() in 'C'; the assembler version would
-   typically be in syscall.S.  */
-
+   typically be in syscall.S. Also note that we have INLINE_SYSCALL,
+   INTERNAL_SYSCALL, and all the generated pure assembly syscall wrappers.
+   How often the function is used is unknown. */
 int
 syscall (int sysnum, int arg0, int arg1, int arg2, int arg3, int arg4, int arg5)
 {
-  long __sys_res;
-  {
-    register unsigned long __res asm("r28");
-    LOAD_ARGS_6(arg0, arg1, arg2, arg3, arg4, arg5)
-      asm volatile ("ble  0x100(%%sr2, %%r0)\n\t"
-		    "copy %1, %%r20"
-		    : "=r" (__res)
-		    : "r" (sysnum) ASM_ARGS_6);
-    __sys_res = __res;
-  }
-  if ((unsigned long) __sys_res >= (unsigned long)-4095)
-    {
-    __set_errno(-__sys_res);
-    __sys_res = -1;
-  }
-  return __sys_res;
+	/* FIXME: Keep this matching INLINE_SYSCALL for hppa */
+	long __sys_res;
+	{
+		register unsigned long __res asm("r28");
+		LOAD_ARGS_6(arg0, arg1, arg2, arg3, arg4, arg5)
+		asm volatile (
+			STW_ASM_PIC
+			"	ble  0x100(%%sr2, %%r0)	\n"
+			"	copy %1, %%r20		\n"
+			LDW_ASM_PIC
+			: "=r" (__res)
+			: "r" (sysnum) ASM_ARGS_6
+			: CALL_CLOB_REGS CLOB_ARGS_6
+		);
+		__sys_res = __res;
+	}
+	if ((unsigned long) __sys_res >= (unsigned long)-4095){
+		__set_errno(-__sys_res);
+		__sys_res = -1;
+	}
+	return __sys_res;
 }
diff -urN glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/sysdep.h glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/sysdep.h
--- glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/sysdep.h	2003-10-14 02:14:25.000000000 -0400
+++ glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/sysdep.h	2003-10-14 02:16:35.000000000 -0400
@@ -31,6 +31,26 @@
 #undef SYS_ify
 #define SYS_ify(syscall_name)	(__NR_##syscall_name)
 
+/* Included for older kernels whose headers 
+   are missing the define  */ 
+#ifndef __NR_semtimedop
+# define __NR_semtimedop 228
+#endif
+
+# ifdef PIC
+/* WARNING: CANNOT BE USED IN A NOP! */
+#  define STW_PIC stw %r19, -32(%sr0, %sp) ASM_LINE_SEP
+#  define LDW_PIC ldw -32(%sr0, %sp), %r19 ASM_LINE_SEP
+#  define STW_ASM_PIC	"       copy %%r19, %%r4\n"
+#  define LDW_ASM_PIC	"       copy %%r4, %%r19\n"
+#  define USING_GR4	"%r4",
+# else
+#  define STW_PIC ASM_LINE_SEP
+#  define LDW_PIC ASM_LINE_SEP
+#  define STW_ASM_PIC	" \n"
+#  define LDW_ASM_PIC	" \n"
+#  define USING_GR4
+# endif
 
 #ifdef __ASSEMBLER__
 
@@ -77,20 +97,13 @@
 	.text					ASM_LINE_SEP	\
 	.export C_SYMBOL_NAME(name)		ASM_LINE_SEP	\
 	.type	C_SYMBOL_NAME(name),@function	ASM_LINE_SEP	\
-	C_LABEL(name)						\
-	CALL_MCOUNT
-
-#define ret \
-	bv 0(2)					ASM_LINE_SEP	\
-	nop
-
-#define ret_NOERRNO \
-	bv 0(2)					ASM_LINE_SEP	\
-	nop
+	C_LABEL(name)				ASM_LINE_SEP	\
+	CALL_MCOUNT				ASM_LINE_SEP
 
 #undef	END
-#define END(name)						\
-1:	.size	C_SYMBOL_NAME(name),1b-C_SYMBOL_NAME(name)
+#define END(name)							\
+1:							ASM_LINE_SEP	\
+.size	C_SYMBOL_NAME(name),1b-C_SYMBOL_NAME(name)	ASM_LINE_SEP	\
 
 /* If compiled for profiling, call `mcount' at the start of each function.  */
 /* No, don't bother.  gcc will put the call in for us.  */
@@ -110,27 +123,83 @@
 	nop
 */
 
-#define	PSEUDO(name, syscall_name, args)				      \
-  ENTRY (name)								      \
-  DO_CALL(syscall_name, args)					ASM_LINE_SEP  \
-  nop
+#define	PSEUDO(name, syscall_name, args)			\
+  ENTRY (name)							\
+  DO_CALL(syscall_name, args)			ASM_LINE_SEP	\
+  nop						ASM_LINE_SEP
+
+#define ret \
+	/* Return value set by ERRNO code */	ASM_LINE_SEP	\
+	bv 0(2)					ASM_LINE_SEP	\
+	nop					ASM_LINE_SEP
 
 #undef	PSEUDO_END
-#define	PSEUDO_END(name)						      \
+#define	PSEUDO_END(name)					\
   END (name)
 
-#define	PSEUDO_NOERRNO(name, syscall_name, args)			      \
-  ENTRY (name)								      \
-  DO_CALL(syscall_name, args)					ASM_LINE_SEP  \
-  nop
+/* We don't set the errno on the return from the syscall */
+#define	PSEUDO_NOERRNO(name, syscall_name, args)		\
+  ENTRY (name)							\
+  DO_CALL_NOERRNO(syscall_name, args)		ASM_LINE_SEP	\
+  nop						ASM_LINE_SEP
 
+#define ret_NOERRNO ret 
+  
 #undef	PSEUDO_END_NOERRNO
-#define	PSEUDO_END_NOERRNO(name)					      \
+#define	PSEUDO_END_NOERRNO(name)				\
   END (name)
 
+/* This has to return the error value */
+#undef  PSEUDO_ERRVAL
+#define PSEUDO_ERRVAL(name, syscall_name, args)			\
+	ENTRY(name)						\
+	DO_CALL_ERRVAL(syscall_name, args)	ASM_LINE_SEP	\
+	nop					ASM_LINE_SEP
+
+#define ret_ERRVAL ret
+	
+#undef	PSEUDO_END_ERRVAL
+#define PSEUDO_END_ERRVAL(name)					\
+	END(name)
+
+#undef JUMPTARGET
 #define JUMPTARGET(name)	name
 #define SYSCALL_PIC_SETUP	/* Nothing.  */
 
+	
+/* All the syscall assembly macros rely on finding the approriate 
+   SYSCALL_ERROR_LABEL or rather HANDLER. */
+
+/* int * __errno_location(void) so you have to store your value
+   into the return address! */
+#define DEFAULT_SYSCALL_ERROR_HANDLER 			\
+	.import __errno_location,code	ASM_LINE_SEP	\
+	/* branch to errno handler */	ASM_LINE_SEP	\
+	bl __errno_location,%rp		ASM_LINE_SEP
+	
+/* Here are the myriad of configuration options that the above can
+   work for... what we've done is provide the framework for future
+   changes if required to each section */
+	
+#ifdef PIC
+# if RTLD_PRIVATE_ERRNO
+#  define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER			    
+# else /* !RTLD_PRIVATE_ERRNO */
+#  if defined _LIBC_REENTRANT
+#   define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER
+#  else /* !_LIBC_REENTRANT */
+#   define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER
+#  endif /* _LIBC_REENTRANT */
+# endif /* RTLD_PRIVATE_ERRNO */
+#else
+# ifndef _LIBC_REENTRANT
+#  define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER
+# else
+#  define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER
+# endif
+#endif					
+	
+	
 /* Linux takes system call arguments in registers:
 	syscall number	gr20
 	arg 1		gr26
@@ -159,25 +228,61 @@
 
 #undef	DO_CALL
 #define DO_CALL(syscall_name, args)				\
-	DOARGS_##args						\
+	DOARGS_##args				ASM_LINE_SEP	\
+	STW_PIC					ASM_LINE_SEP	\
+	/* Do syscall, delay loads # */		ASM_LINE_SEP	\
 	ble  0x100(%sr2,%r0)			ASM_LINE_SEP	\
 	ldi SYS_ify (syscall_name), %r20	ASM_LINE_SEP	\
 	ldi -0x1000,%r1				ASM_LINE_SEP	\
 	cmpb,>>=,n %r1,%ret0,0f			ASM_LINE_SEP	\
-	stw %rp, -20(%sr0,%r30)			ASM_LINE_SEP	\
-	stw %ret0, -24(%sr0,%r30)		ASM_LINE_SEP	\
-	.import __errno_location,code		ASM_LINE_SEP	\
-	bl __errno_location,%rp			ASM_LINE_SEP	\
-	ldo 64(%r30), %r30			ASM_LINE_SEP	\
-	ldo -64(%r30), %r30			ASM_LINE_SEP	\
-	ldw -24(%r30), %r26			ASM_LINE_SEP	\
+	/* save rp or we get lost */		ASM_LINE_SEP	\
+	stw %rp, -20(%sr0,%sp)			ASM_LINE_SEP	\
+	/* Restore r19 from frame */		ASM_LINE_SEP	\
+	LDW_PIC					ASM_LINE_SEP	\
+	stw %ret0, -24(%sr0,%sp)		ASM_LINE_SEP	\
+	SYSCALL_ERROR_HANDLER			ASM_LINE_SEP	\
+	/* create frame */			ASM_LINE_SEP	\
+	ldo 64(%sp), %sp			ASM_LINE_SEP	\
+	ldo -64(%sp), %sp			ASM_LINE_SEP	\
+	/* OPTIMIZE: Don't reload r19 */	ASM_LINE_SEP	\
+	/* do a -1*syscall_ret0 */		ASM_LINE_SEP	\
+	ldw -24(%sr0,%sp), %r26			ASM_LINE_SEP	\
 	sub %r0, %r26, %r26			ASM_LINE_SEP	\
+	/* Store into errno location */		ASM_LINE_SEP	\
 	stw %r26, 0(%sr0,%ret0)			ASM_LINE_SEP	\
+	/* return -1 as error */		ASM_LINE_SEP	\
 	ldo -1(%r0), %ret0			ASM_LINE_SEP	\
-	ldw -20(%r30), %rp			ASM_LINE_SEP	\
+	ldw -20(%sr0,%sp), %rp			ASM_LINE_SEP	\
 0:						ASM_LINE_SEP	\
+	UNDOARGS_##args				ASM_LINE_SEP
+
+/* We do nothing with the return, except hand it back to someone else */
+#undef  DO_CALL_NOERRNO
+#define DO_CALL_NOERRNO(syscall_name, args)			\
+	DOARGS_##args                                           \
+	/* No need to store r19 */		ASM_LINE_SEP	\
+	ble  0x100(%sr2,%r0)                    ASM_LINE_SEP    \
+	ldi SYS_ify (syscall_name), %r20        ASM_LINE_SEP    \
+	/* Caller will restore r19 */		ASM_LINE_SEP	\
 	UNDOARGS_##args
 
+/* Here, we return the ERRVAL in assembly, note we don't call the
+   error handler function, but we do 'negate' the return _IF_
+   it's an error. Not sure if this is the right semantic. */
+
+#undef	DO_CALL_ERRVAL
+#define DO_CALL_ERRVAL(syscall_name, args)			\
+	DOARGS_##args				ASM_LINE_SEP	\
+	/* No need to store r19 */		ASM_LINE_SEP	\
+	ble  0x100(%sr2,%r0)			ASM_LINE_SEP	\
+	ldi SYS_ify (syscall_name), %r20	ASM_LINE_SEP	\
+	/* Caller will restore r19 */		ASM_LINE_SEP	\
+	ldi -0x1000,%r1				ASM_LINE_SEP	\
+	cmpb,>>=,n %r1,%ret0,0f			ASM_LINE_SEP	\
+	sub %r0, %ret0, %ret0			ASM_LINE_SEP	\
+0:						ASM_LINE_SEP	\
+	UNDOARGS_##args				ASM_LINE_SEP
+
 #define DOARGS_0 /* nothing */
 #define DOARGS_1 /* nothing */
 #define DOARGS_2 /* nothing */
@@ -198,26 +303,87 @@
 
 #else
 
+/* GCC has to be warned that a syscall may clobber all the ABI 
+   registers listed as "caller-saves", see page 8, Table 2 
+   in section 2.2.6 of the PA-RISC RUN-TIME architecture 
+   document. However! r28 is the result and will conflict with
+   the clobber list so it is left out. Also the input arguments
+   registers r20 -> r26 will conflict with the list so they 
+   are treated specially. Although r19 is clobbered by the syscall
+   we cannot say this because it would violate ABI, thus we say
+   r4 is clobbered and use that register to save/restore r19
+   across the syscall. */
+		 
+#define CALL_CLOB_REGS	"%r1", "%r2", USING_GR4 \
+		 	"%r20", "%r29", "%r31"
+		 
 #undef INLINE_SYSCALL
-#define INLINE_SYSCALL(name, nr, args...)	({		\
+#define INLINE_SYSCALL(name, nr, args...)	({			\
+	long __sys_res;							\
+	{								\
+		register unsigned long __res asm("r28");		\
+		LOAD_ARGS_##nr(args)					\
+		/* FIXME: HACK stw/ldw r19 around syscall */		\
+		asm volatile(						\
+			STW_ASM_PIC					\
+			"	ble  0x100(%%sr2, %%r0)\n"		\
+			"	ldi %1, %%r20\n"			\
+			LDW_ASM_PIC					\
+			: "=r" (__res)					\
+			: "i" (SYS_ify(name)) ASM_ARGS_##nr		\
+			: CALL_CLOB_REGS CLOB_ARGS_##nr			\
+		);							\
+		__sys_res = (long)__res;				\
+	}								\
+	if ( (unsigned long)__sys_res >= (unsigned long)-4095 ){	\
+		__set_errno(-__sys_res);				\
+		__sys_res = -1;						\
+	}								\
+	__sys_res;							\
+})
+
+/* INTERNAL_SYSCALL_DECL - Allows us to setup some function static 
+   value to use within the context of the syscall 
+   INTERNAL_SYSCALL_ERROR_P - Returns 0 if it wasn't an error, 1 otherwise
+   You are allowed to use the syscall result (val) and the DECL error variable
+   to determine what went wrong.
+   INTERLAL_SYSCALL_ERRNO - Munges the val/err pair into the error number.
+   In our case we just flip the sign. */
+
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
+
+/* Equivalent to  (val < 0)&&(val > -4095) which is what we want */
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err) \
+	((unsigned long)val >= (unsigned long)-4095)
+	
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
+
+/* Similar to INLINE_SYSCALL but we don't set errno */
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, err, nr, args...) 		\
+({								\
 	long __sys_res;						\
 	{							\
 		register unsigned long __res asm("r28");	\
 		LOAD_ARGS_##nr(args)				\
+		/* FIXME: HACK stw/ldw r19 around syscall */	\
 		asm volatile(					\
-			"ble  0x100(%%sr2, %%r0)\n\t"		\
-			" ldi %1, %%r20"			\
+			STW_ASM_PIC				\
+			"	ble  0x100(%%sr2, %%r0)\n"	\
+			"	ldi %1, %%r20\n"		\
+			LDW_ASM_PIC				\
 			: "=r" (__res)				\
 			: "i" (SYS_ify(name)) ASM_ARGS_##nr	\
-			 );					\
-		__sys_res = __res;				\
-	}							\
-	if ((unsigned long)__sys_res >= (unsigned long)-4095) {	\
-		__set_errno(-__sys_res);			\
-		__sys_res = -1;					\
+			: CALL_CLOB_REGS CLOB_ARGS_##nr		\
+		);						\
+		__sys_res = (long)__res;			\
 	}							\
 	__sys_res;						\
-})
+ })
+
 
 #define LOAD_ARGS_0()
 #define LOAD_ARGS_1(r26)					\
@@ -239,12 +405,22 @@
 	register unsigned long __r21 __asm__("r21") = (unsigned long)r21;	\
 	LOAD_ARGS_5(r26,r25,r24,r23,r22)
 
-#define ASM_ARGS_0
-#define ASM_ARGS_1 , "r" (__r26)
-#define ASM_ARGS_2 , "r" (__r26), "r" (__r25)
-#define ASM_ARGS_3 , "r" (__r26), "r" (__r25), "r" (__r24)
-#define ASM_ARGS_4 , "r" (__r26), "r" (__r25), "r" (__r24), "r" (__r23)
-#define ASM_ARGS_5 , "r" (__r26), "r" (__r25), "r" (__r24), "r" (__r23), "r" (__r22)
-#define ASM_ARGS_6 , "r" (__r26), "r" (__r25), "r" (__r24), "r" (__r23), "r" (__r22), "r" (__r21)
-
+/* Even with zero args we use r20 for the syscall number */
+#define ASM_ARGS_0 
+#define ASM_ARGS_1 ASM_ARGS_0, "r" (__r26)
+#define ASM_ARGS_2 ASM_ARGS_1, "r" (__r25)
+#define ASM_ARGS_3 ASM_ARGS_2, "r" (__r24)
+#define ASM_ARGS_4 ASM_ARGS_3, "r" (__r23)
+#define ASM_ARGS_5 ASM_ARGS_4, "r" (__r22)
+#define ASM_ARGS_6 ASM_ARGS_5, "r" (__r21)
+
+/* The registers not listed as inputs but clobbered */
+#define CLOB_ARGS_6
+#define CLOB_ARGS_5 CLOB_ARGS_6, "%r21"
+#define CLOB_ARGS_4 CLOB_ARGS_5, "%r22"
+#define CLOB_ARGS_3 CLOB_ARGS_4, "%r23"
+#define CLOB_ARGS_2 CLOB_ARGS_3, "%r24"
+#define CLOB_ARGS_1 CLOB_ARGS_2, "%r25"
+#define CLOB_ARGS_0 CLOB_ARGS_1, "%r26"
+	
 #endif	/* __ASSEMBLER__ */
diff -urN glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/umount.c glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/umount.c
--- glibc-2.3.2.orig/sysdeps/unix/sysv/linux/hppa/umount.c	2001-07-07 15:21:34.000000000 -0400
+++ glibc-2.3.2/sysdeps/unix/sysv/linux/hppa/umount.c	2003-10-14 02:16:36.000000000 -0400
@@ -21,6 +21,7 @@
    does down here.  */
 
 extern long int __umount2 (const char *name, int flags);
+extern long int __umount (const char * name);
 
 long int
 __umount (const char *name)
diff -urN glibc-2.3.2.orig/sysdeps/unix/sysv/linux/sys/sysctl.h glibc-2.3.2/sysdeps/unix/sysv/linux/sys/sysctl.h
--- glibc-2.3.2.orig/sysdeps/unix/sysv/linux/sys/sysctl.h	2002-11-06 00:43:44.000000000 -0500
+++ glibc-2.3.2/sysdeps/unix/sysv/linux/sys/sysctl.h	2003-10-14 02:16:35.000000000 -0400
@@ -24,7 +24,9 @@
 #include <stddef.h>
 /* Prevent more kernel headers than necessary to be included.  */
 #define _LINUX_KERNEL_H	1
-#define _LINUX_TYPES_H	1
+#ifndef _LINUX_TYPES_H
+# define _LINUX_TYPES_H 1
+#endif
 #define _LINUX_LIST_H	1
 #include <linux/sysctl.h>
 
diff -u -p -r1.23 thread-m.h
--- glibc/malloc/thread-m.h	1 Jul 2003 08:29:43 -0000	1.23
+++ glibc/malloc/thread-m.h	25 Sep 2003 20:43:55 -0000
@@ -59,6 +59,28 @@ __libc_lock_define (typedef, mutex_t)
 #define mutex_unlock(m)		\
   __libc_maybe_call2 (pthread_mutex_unlock, (m), (*(int *)(m) = 0))
 
+# if(defined __hppa__)
+/* Since our lock structure does not tolerate being initialized to zero, we must
+   modify the standard function calls made by malloc */
+#  undef mutex_init
+#  undef mutex_lock
+#  undef mutex_trylock
+#  undef mutex_unlock
+#  define mutex_init(m)		\
+	__libc_maybe_call (__pthread_mutex_init, (m, NULL), \
+			(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT),(*(int *)(m))) )
+#  define mutex_lock(m)		\
+	__libc_maybe_call (__pthread_mutex_lock, (m), \
+			(__load_and_clear(&((m)->__m_lock.__spinlock)), 0))
+#  define mutex_trylock(m)	\
+	__libc_maybe_call (__pthread_mutex_trylock, (m), \
+			(*(int *)(m) ? 1 : (__load_and_clear(&((m)->__m_lock.__spinlock)), 0)))
+#  define mutex_unlock(m)	\
+	__libc_maybe_call (__pthread_mutex_unlock, (m), \
+			(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT), (*(int *)(m))) )
+# endif 
+/* if(defined __hppa__) */
+	
 #else
 
 #define mutex_init(m)		\

--H+4ONPRPur6+Ovig--


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Hello,

a visit to openpa.net made me doubtful.

I reported kernel freeze problems probably scsi related. I have a dedicated
disk and the driver used is called "lasi". But the hp 9000/720 does not have
a lasi chip, which is for 712 for example.

is the driver actually more "general" ?

-Ric



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Subject: Re: [parisc-linux] ATI rage xl and C360 (it works!)
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Hi Max,

M. Grabert wrote:
> On Thu, 16 Oct 2003, Joel Soete wrote:
> 
> 
>>Thomas,
>>
>>Thanks a lot, you config file was very helpfull to make it work:
>>root@fw02:~# modprobe atyfb
>>atyfb: using auxiliary register aperture
>>atyfb: 3D RAGE (XL PCI-33MHz) [0x4752 rev 0x27] 8M WRAM, 14.31818 MHz XTAL,
>>230 MHz PLL, 83 Mhz MCLK, 63 Mhz XCLKConsole: switching to colour frame buffer
>>device 80x30
>>fb0: ATY Mach64 frame buffer device on PCI
> 
> 
> I wonder whether you can also use more recent ATI Radeon graphic cards.

Hmm, on my b180 even if for s/w all seems ok (gdm run and no error 
neither in in XFree86.0.log nor in gdm/:0.log), nothing appears on the 
screen?
Having no other platform to test the card (which I suspect to be 
broken), I just still have an opportunity to test it on my b2k (near 
about c3k iirc) before any conclusion.

Anyway, unfortunaltely, the only other ATI card i could have at my 
disposal is an AGP model (useless for b180 or b2k models). Sorry to not 
being able to help you more.


> So far I've only seen reports about ATI Rage XL, but does this patch
> work with any kind of ATI card?
> 
I think (as far as can understand the patch content) that it is specific 
to this card model.

Well come Max,
	Joel



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Subject: Re: [parisc-linux] hppa glibc 2.3.2-9 available for the brave testers!
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Hi Carlos,

I can safely broken my raid1 Debian/unstable install and drive some test 
on a disk :) and advise you.

Joel

Carlos O'Donell wrote:
> parisc-linux,
> debian-hppa,
> 
> --- CALLING ALL TESTERS! ---
> 
> glibc 2.3.2 is complete for HPPA. We've gotten rid of the following
> long standing test-suite errors (bug-iconv3, and test-fenv).
> 
> The regressions in 2.3.2 were caused by incorrect handling of the PIC
> register by the kernel, but fixed in glibc. Most cases for our stack
> were handled incorrectly (stack grows up cases), but are fixed in this
> release.
> 
> ftp://ftp.parisc-linux.org/unofficial-debs/glibc_2.3.2-9_2003-10-16/
> 
> Download all the debs and install with:
> 
> dpkg -i libc6_*.deb
> (Followed by dpkg -i of the rest in any order, libc6 must install first) 
> 
> Please do this only if you consider yourself a well seasoned linux-type
> person. If that dpkg install fails for any reason you might be in
> trouble. I'm running these debs on all my boxes, and I've tested in a
> chroot, rebuilt our toolchain, and ran lmbench, gnome-session, nautilus,
> and abi-word.
> 
> http://www.baldric.uwo.ca/~carlos/a500-gnome-abiword.png
> 
> Thanks go out to everyone for all the moral support and fun! 
> 
> --- TEST IT AND REPORT BACK ... PLEASE! :) ---
> 
> == DISCLAIMER ===
> I do not guarantee that these debs won't cause your computer to explode
> like a pineapple grenade, showering shrapnel and fiery death on all your
> loved ones.
> == DISCLAIMER ===
> 
> c.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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> I've applied this patch, but only because I really don't care how the PA
> port looks.

Small cleanup mistake. Thank you.

c.

---
2003-10-18  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* sysdeps/unix/sysv/linux/hppa/sysdep.h: Fix merge error.

diff -u -p -r1.8 sysdep.h
--- libc/sysdeps/unix/sysv/linux/hppa/sysdep.h	15 Oct 2003 05:46:00 -0000	1.8
+++ libc/sysdeps/unix/sysv/linux/hppa/sysdep.h	16 Oct 2003 05:38:17 -0000
@@ -371,7 +371,6 @@
 			LDW_ASM_PIC				\
 			: "=r" (__res)				\
 			: "i" (SYS_ify(name)) ASM_ARGS_##nr	\
-			 );					\
 			: CALL_CLOB_REGS CLOB_ARGS_##nr		\
 		);						\
 		__sys_res = (long)__res;			\


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Subject: Re: [parisc-linux] evolution (1.4.5-1) do_page_fault?
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Carlos,

I just reboot my C110 but with a kernel 2.4.21-32 and evolution works 
fine. OTC with k2.6 still failled. I will try to see later what is wrong :(

Thanks again,
	Joel


Joel Soete wrote:
> Hi Carlos,
> 
> I just haven't such hw at my office where otc i can do some other check on
> the b2k model.
> 
> On this b2k (also installed with unstable debian) run fine the same release
> of evolution (otc what i said).
> But it is booted with last 2.4 (a merge of 23-pre7 and 22-pa12) with 256M
> of ram (only 128k for c110) and without mozilla-psm (a recommended or suggested
> additional pkg added on c110).
> 
> So a lot of test to figure out the present pb :)
> 
> Thanks a lot ( I will advise you :) )
>     Joel
> 
> 
>>-- Original Message --
>>From: Carlos O'Donell <carlos@baldric.uwo.ca>
>>To: Joel Soete <soete.joel@tiscali.be>
>>Cc: parisc-linux@parisc-linux.org
>>Date: Sun, 12 Oct 2003 16:02:02 -0400
>>Subject: Re: [parisc-linux] evolution (1.4.5-1) do_page_fault?
>>
>>
>>On Sun, Oct 12, 2003 at 06:42:55PM +0000, Joel Soete wrote:
>>Hello Carlos,
>>
>>I launch 'gbd evolution'
>>(gdb) run
>>to determine the new address in this env but failed before with message:
>>Program received signal SIG37, Real-time event 37.
> 
> 
>>>0x4193c574 in malloc_set_state () from /lib/libc.so.6
>>
>>what's your opinion?
> 
> 
> That's libpthreads realtime singal mechanism working.
> You need to set "handle all nostop" and "handle all pass" in gdb.
> 
> Then you can do the math with /proc/<pid>
> 
>>maps and the dying address to
> 
> calculate the _real_ library offset and function symbolic name.
> 
> c.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman
> 
>>listinfo/parisc-linux
> 
> 
> 
> 
> -------------------------------------------------------------------------
> L'Internet rapide, c'est pour tout le monde. Tiscali ADSL, 19,50 Euro
> pendant 3 mois! http://reg.tiscali.be/default.asp?lg=fr 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 




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Subject: Re: [parisc-linux] hppa glibc 2.3.2-9 available for the brave testers!
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On Fri, Oct 17, 2003 at 02:09:12PM -0400, Carlos O'Donell wrote:
> ftp://ftp.parisc-linux.org/unofficial-debs/glibc_2.3.2-9_2003-10-16/

I've downloaded the debs and copied them to my ftp server on
gsyprf10 in case ftp.p-l.o is saturated (unlikely).

And kudos to Carlos!

I've installed the libc6 and libc6-dev debs on both c3k's
and they both are working fine (well, mozilla-firebird is
still broken, not new).

Thanks!
grant


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> I've installed the libc6 and libc6-dev debs on both c3k's
> and they both are working fine (well, mozilla-firebird is
> still broken, not new).

I don't know about firebird but standard mozilla needs some pa specific
configuration stuff added before it will build/work.  I made a first
cut at this and started debugging the app a few weeks ago, but got
caught up in other things.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] Re: [PATCH] _STACK_GROWS_UP fixes.
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On Wed, Oct 15, 2003 at 07:34:31AM +0200, Jakub Jelinek wrote:
> On Sun, Oct 12, 2003 at 05:37:34PM -0400, Carlos O'Donell wrote:
> > 2003-10-06  Carlos O'Donell <carlos@baldric.uwo.ca>
> > 
> > 	* pthread.c (__pthread_self_stack): _STACK_GROWS_UP case added.
> > 	(__pthread_find_self): Likewise.
> > 	* manager.c (thread_segment): _STACK_GROWS_UP case added.
> 
> You need to look at linuxthreads/attr.c (__pthread_attr_getstack) too
> (the recent code which parses /proc/self/maps and finds stack VMA in there).

Jakub,

What do you think of something like this? Would it not also be valid to
do something like "to - from" for the _STACK_GROWS_DOWN case?

I'm building with this patch right now.

c.

---
2003-10-18  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* attr.c (pthread_getattr_np): Add _STACK_GROWS_UP case when
	converting /proc/self/maps entry to __stackaddr and __stacksize.

Index: linuxthreads/attr.c
===================================================================
RCS file: /cvs/glibc/libc/linuxthreads/attr.c,v
retrieving revision 1.33
diff -u -p -r1.33 attr.c
--- linuxthreads/attr.c	23 Sep 2003 06:12:59 -0000	1.33
+++ linuxthreads/attr.c	18 Oct 2003 22:34:03 -0000
@@ -455,12 +455,19 @@ int pthread_getattr_np (pthread_t thread
 		{
 		  /* Found the entry.  Now we have the info we need.  */
 		  attr->__stacksize = rl.rlim_cur;
+#ifdef _STACK_GROWS_DOWN
 		  attr->__stackaddr = (void *) to;

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Grant Grundler wrote:

>>
>>Well, when I will ( ;) ) have a more accurate idea of what mean 
>>_(ab)use_ kmpa() (i thinks it is to write a parisc specific kmpa() as 
>>for some other platform?) and the work it would require, I will so ask 
>>on the list. But before all, I still need to learn a lot on vm and so 
>>read A. Tananenbaum book on vm as well as the (excelent) Mel Gorman thesis.
> 
Grant,

Well, the 'Operating systems design and implementation' of Andrew S. 
Tanenbaum & Albert S. Woodhull (2d edition) is available near Prentice 
Hall (I don't know if another format (pdf, html) is available, sorry).

OTC the thesis of Mel Gorman 'Understanding The Linux Virtual Memory 
Manager' and 'Code Commentary On The Linux Virtual Memory Manager' is 
available as html and pdf format at:

<http://www.csn.ul.ie/~mel/projects/vm/>

as well as many interesting material (but I will let you read).

hth,
	Joel



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Cc: Carlos O'Donell <carlos@baldric.uwo.ca>,
	parisc-linux@lists.parisc-linux.org, debian-hppa@lists.debian.org
To: Joel Soete <soete.joel@tiscali.be>
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Carlos,

Sucessfully install :)

Some rsync, ssh connection still work fine;

as well 'apt-get install somepkg'.

build our k-2.6.0-test8-pa1 with success also (boot fine ;) )

evolution (k-2.4.21-32 always) works fine (a bit slow on my c110)

Test case about mallopt() ok :)

So squid didn't hang any more at start up but still failled:
'Setting up squid (2.5.4-2) ...
Creating squid spool directory structure
FATAL: Could not determine fully qualified hostname.  Please set 
'visible_hostname'

Squid Cache (Version 2.5.STABLE4): Terminated abnormally.
CPU Usage: 0.140 seconds = 0.060 user + 0.080 sys
Maximum Resident Size: 0 KB
Page faults with physical i/o: 323
/var/lib/dpkg/info/squid.postinst: line 177:  1082 Aborted 
    /usr/sbin/squid -z
Starting proxy server: Creating squid spool directory structure
FATAL: Could not determine fully qualified hostname.  Please set 
'visible_hostname'

Squid Cache (Version 2.5.STABLE4): Terminated abnormally.
CPU Usage: 0.150 seconds = 0.040 user + 0.110 sys
Maximum Resident Size: 0 KB
Page faults with physical i/o: 323
/etc/init.d/squid: line 133:  1106 Aborted 
/usr/sbin/squid -z
FATAL: Could not determine fully qualified hostname.  Please set 
'visible_hostname'

Squid Cache (Version 2.5.STABLE4): Terminated abnormally.
CPU Usage: 0.180 seconds = 0.080 user + 0.100 sys
Maximum Resident Size: 0 KB
Page faults with physical i/o: 435
/etc/init.d/squid: line 133:  1108 Aborted 
start-stop-daemon --quiet --start --pidfile $PIDFILE --exec $DAEMON -- 
$SQUID_ARGS </dev/null
squid.'

I will try to see?

Joel Soete wrote:
> Hi Carlos,
> 
> I can safely broken my raid1 Debian/unstable install and drive some test 
> on a disk :) and advise you.
> 
> Joel
> 
> Carlos O'Donell wrote:
> 
>> parisc-linux,
>> debian-hppa,
>>
>> --- CALLING ALL TESTERS! ---
>>
>> glibc 2.3.2 is complete for HPPA. We've gotten rid of the following
>> long standing test-suite errors (bug-iconv3, and test-fenv).
>>
>> The regressions in 2.3.2 were caused by incorrect handling of the PIC
>> register by the kernel, but fixed in glibc. Most cases for our stack
>> were handled incorrectly (stack grows up cases), but are fixed in this
>> release.
>>
>> ftp://ftp.parisc-linux.org/unofficial-debs/glibc_2.3.2-9_2003-10-16/
>>
>> Download all the debs and install with:
>>
>> dpkg -i libc6_*.deb
>> (Followed by dpkg -i of the rest in any order, libc6 must install first)
>> Please do this only if you consider yourself a well seasoned linux-type
>> person. If that dpkg install fails for any reason you might be in
>> trouble. I'm running these debs on all my boxes, and I've tested in a
>> chroot, rebuilt our toolchain, and ran lmbench, gnome-session, nautilus,
>> and abi-word.
>>
>> http://www.baldric.uwo.ca/~carlos/a500-gnome-abiword.png
>>
>> Thanks go out to everyone for all the moral support and fun!
>> --- TEST IT AND REPORT BACK ... PLEASE! :) ---
>>
>> == DISCLAIMER ===
>> I do not guarantee that these debs won't cause your computer to explode
>> like a pineapple grenade, showering shrapnel and fiery death on all your
>> loved ones.
>> == DISCLAIMER ===
>>
>> c.
>>
>> _______________________________________________
>> parisc-linux mailing list
>> parisc-linux@lists.parisc-linux.org
>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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bethesda -->ed go<!-- antisemitic -->od!</font></b></td></tr></table>=

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tr> 
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<p align=3D"left"><!-- implode --><font color=3D"#000000" face=3D"Ver=
dana" size=3D"4">See
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ck - they just can't res<!-- artemis -->ist.</font></p>
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a href=3D"http://constitution@www.surfbling.com/mi/index.html?=
reprehensible" style=3D"color: #000000"><!-- fissile -->Cl<!-- =
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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] [patch] handle pagefaults on unaligned access
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while testing out gcj today, i was able to crash the machine
consistently with both 2.4 and 2.6 kernel. turns out our unaligned
handler doesn't handle page faults properly. in the case for gcj, there
was a ldh on the edge of the page, the first byte is on a resident page,
the 2nd byte is on a faulting page.

this patch seems to fix it (at least the case i was seeing). any 
comments before i commit it?

thanks
randolph

Index: arch/parisc/kernel/unaligned.c
===================================================================
RCS file: /var/cvs/linux-2.4/arch/parisc/kernel/unaligned.c,v
retrieving revision 1.21
diff -u -p -r1.21 unaligned.c
--- arch/parisc/kernel/unaligned.c	23 Sep 2003 20:15:33 -0000	1.21
+++ arch/parisc/kernel/unaligned.c	19 Oct 2003 06:29:00 -0000
@@ -128,6 +128,9 @@
 #define IM5_3(i) IM((i),5)
 #define IM14(i) IM((i),14)
 
+#define ERR_NOTHANDLED	-1
+#define ERR_PAGEFAULT	-2
+
 int unaligned_enabled = 1;
 
 void die_if_kernel (char *str, struct pt_regs *regs, long err);
@@ -136,16 +139,28 @@ static int emulate_ldh(struct pt_regs *r
 {
 	unsigned long saddr = regs->ior;
 	unsigned long val = 0;
+	int ret;
 
 	DPRINTF("load " RFMT ":" RFMT " to r%d for 2 bytes\n", 
 		regs->isr, regs->ior, toreg);
 
 	__asm__ __volatile__  (
-"	mtsp	%3, %%sr1\n"
-"	ldbs	0(%%sr1,%2), %%r20\n"
-"	ldbs	1(%%sr1,%2), %0\n"
-	"depw	%%r20, 23, 24, %0\n"
-	: "=r" (val)
+"	mtsp	%4, %%sr1\n"
+"1:	ldbs	0(%%sr1,%3), %%r20\n"
+"2:	ldbs	1(%%sr1,%3), %0\n"
+"	depw	%%r20, 23, 24, %0\n"
+"	cmpclr,= %%r0, %%r0, %1\n"
+"3:	ldo	-2(%%r0), %1\n"
+"	.section __ex_table,\"a\"\n"
+#ifdef __LP64__
+"	.dword	1b,(3b-1b)\n"
+"	.dword  2b,(3b-2b)\n"
+#else
+"	.word	1b,(3b-1b)\n"
+"	.word	2b,(3b-2b)\n"
+#endif
+"	.previous\n"
+	: "=r" (val), "=r" (ret)
 	: "0" (val), "r" (saddr), "r" (regs->isr)
 	: "r20" );
 
@@ -154,26 +169,39 @@ static int emulate_ldh(struct pt_regs *r
 	if (toreg)
 		regs->gr[toreg] = val;
 
-	return 0;
+	return ret;
 }
+
 static int emulate_ldw(struct pt_regs *regs, int toreg, int flop)
 {
 	unsigned long saddr = regs->ior;
 	unsigned long val = 0;
+	int ret;
 
 	DPRINTF("load " RFMT ":" RFMT " to r%d for 4 bytes\n", 
 		regs->isr, regs->ior, toreg);
 
 	__asm__ __volatile__  (
-"	zdep	%2,28,2,%%r19\n"		/* r19=(ofs&3)*8 */
-"	mtsp	%3, %%sr1\n"
-"	depw	%%r0,31,2,%2\n"
-"	ldw	0(%%sr1,%2),%0\n"
-"	ldw	4(%%sr1,%2),%%r20\n"
+"	zdep	%3,28,2,%%r19\n"		/* r19=(ofs&3)*8 */
+"	mtsp	%4, %%sr1\n"
+"	depw	%%r0,31,2,%3\n"
+"1:	ldw	0(%%sr1,%3),%0\n"
+"2:	ldw	4(%%sr1,%3),%%r20\n"
 "	subi	32,%%r19,%%r19\n"
 "	mtctl	%%r19,11\n"
 "	vshd	%0,%%r20,%0\n"
-	: "=r" (val)
+"	cmpclr,= %%r0, %%r0, %1\n"
+"3:	ldo	-2(%%r0), %1\n"
+"	.section __ex_table,\"a\"\n"
+#ifdef __LP64__
+"	.dword	1b,(3b-1b)\n"
+"	.dword  2b,(3b-2b)\n"
+#else
+"	.word	1b,(3b-1b)\n"
+"	.word	2b,(3b-2b)\n"
+#endif
+"	.previous\n"
+	: "=r" (val), "=r" (ret)
 	: "0" (val), "r" (saddr), "r" (regs->isr)
 	: "r19", "r20" );
 
@@ -184,12 +212,13 @@ static int emulate_ldw(struct pt_regs *r
 	else if (toreg)
 		regs->gr[toreg] = val;
 
-	return 0;
+	return ret;
 }
 static int emulate_ldd(struct pt_regs *regs, int toreg, int flop)
 {
 	unsigned long saddr = regs->ior;
 	__u64 val = 0;
+	int ret;
 
 	DPRINTF("load " RFMT ":" RFMT " to r%d for 8 bytes\n", 
 		regs->isr, regs->ior, toreg);
@@ -200,51 +229,77 @@ static int emulate_ldd(struct pt_regs *r
 		return -1;
 #endif
 	__asm__ __volatile__  (
-"	depd,z	%2,60,3,%%r19\n"		/* r19=(ofs&7)*8 */
-"	mtsp	%3, %%sr1\n"
-"	depd	%%r0,63,3,%2\n"
-"	ldd	0(%%sr1,%2),%0\n"
-"	ldd	8(%%sr1,%2),%%r20\n"
+"	depd,z	%3,60,3,%%r19\n"		/* r19=(ofs&7)*8 */
+"	mtsp	%4, %%sr1\n"
+"	depd	%%r0,63,3,%3\n"
+"1:	ldd	0(%%sr1,%3),%0\n"
+"2:	ldd	8(%%sr1,%3),%%r20\n"
 "	subi	64,%%r19,%%r19\n"
 "	mtsar	%%r19\n"
 "	shrpd	%0,%%r20,%%sar,%0\n"
-	: "=r" (val)
+"	cmpclr,= %%r0, %%r0, %1\n"
+"3:	ldo	-2(%%r0), %1\n"
+"	.section __ex_table,\"a\"\n"
+#ifdef __LP64__
+"	.dword	1b,(3b-1b)\n"
+"	.dword  2b,(3b-2b)\n"
+#else
+"	.word	1b,(3b-1b)\n"
+"	.word	2b,(3b-2b)\n"
+#endif
+"	.previous\n"
+	: "=r" (val), "=r" (ret)
 	: "0" (val), "r" (saddr), "r" (regs->isr)
 	: "r19", "r20" );
 #else
     {
 	unsigned long valh=0,vall=0;
 	__asm__ __volatile__  (
-"	zdep	%4,29,2,%%r19\n"		/* r19=(ofs&3)*8 */
-"	mtsp	%5, %%sr1\n"
-"	dep	%%r0,31,2,%4\n"
-"	ldw	0(%%sr1,%5),%0\n"
-"	ldw	4(%%sr1,%5),%1\n"
-"	ldw	8(%%sr1,%5),%%r20\n"
+"	zdep	%5,29,2,%%r19\n"		/* r19=(ofs&3)*8 */
+"	mtsp	%6, %%sr1\n"
+"	dep	%%r0,31,2,%5\n"
+"1:	ldw	0(%%sr1,%6),%0\n"
+"2:	ldw	4(%%sr1,%6),%1\n"
+"3:	ldw	8(%%sr1,%6),%%r20\n"
 "	subi	32,%%r19,%%r19\n"
 "	mtsar	%%r19\n"
 "	vshd	%0,%1,%0\n"
 "	vshd	%1,%%r20,%1\n"
-	: "=r" (valh), "=r" (vall)
+"	cmpclr,= %%r0, %%r0, %2\n"
+"4:	ldo	-2(%%r0), %2\n"
+"	.section __ex_table,\"a\"\n"
+#ifdef __LP64__
+"	.dword	1b,(4b-1b)\n"
+"	.dword  2b,(4b-2b)\n"
+"	.dword	3b,(4b-3b)\n"
+#else
+"	.word	1b,(4b-1b)\n"
+"	.word	2b,(4b-2b)\n"
+"	.word	3b,(4b-3b)\n"
+#endif
+"	.previous\n"
+	: "=r" (valh), "=r" (vall), "=r" (ret)
 	: "0" (valh), "1" (vall), "r" (saddr), "r" (regs->isr)
 	: "r19", "r20" );
 	val=((__u64)valh<<32)|(__u64)vall;
     }
 #endif
 
-	DPRINTF("val = 0x" RFMT "\n", val);
+	DPRINTF("val = 0xllx\n", val);
 
 	if (flop)
 		regs->fr[toreg] = val;
 	else if (toreg)
 		regs->gr[toreg] = val;
 
-	return 0;
+	return ret;
 }
 
 static int emulate_sth(struct pt_regs *regs, int frreg)
 {
 	unsigned long val = regs->gr[frreg];
+	int ret;
+
 	if (!frreg)
 		val = 0;
 
@@ -252,19 +307,32 @@ static int emulate_sth(struct pt_regs *r
 		val, regs->isr, regs->ior);
 
 	__asm__ __volatile__ (
-"	mtsp %2, %%sr1\n"
-"	extrw,u %0, 23, 8, %%r19\n"
-"	stb %0, 1(%%sr1, %1)\n"
-"	stb %%r19, 0(%%sr1, %1)\n"
-	:
+"	mtsp %3, %%sr1\n"
+"	extrw,u %1, 23, 8, %%r19\n"
+"1:	stb %1, 1(%%sr1, %2)\n"
+"2:	stb %%r19, 0(%%sr1, %2)\n"
+"	cmpclr,= %%r0, %%r0, %0\n"
+"3:	ldo	-2(%%r0), %0\n"
+"	.section __ex_table,\"a\"\n"
+#ifdef __LP64__
+"	.dword	1b,(3b-1b)\n"
+"	.dword  2b,(3b-2b)\n"
+#else
+"	.word	1b,(3b-1b)\n"
+"	.word	2b,(3b-2b)\n"
+#endif
+"	.previous\n"
+	: "=r" (ret)
 	: "r" (val), "r" (regs->ior), "r" (regs->isr)
 	: "r19" );
 
-	return 0;
+	return ret;
 }
+
 static int emulate_stw(struct pt_regs *regs, int frreg, int flop)
 {
 	unsigned long val;
+	int ret;
 
 	if (flop)
 		val = ((__u32*)(regs->fr))[frreg];
@@ -278,22 +346,33 @@ static int emulate_stw(struct pt_regs *r
 
 
 	__asm__ __volatile__ (
-"	mtsp %2, %%sr1\n"
-"	zdep	%1, 28, 2, %%r19\n"
-"	dep	%%r0, 31, 2, %1\n"
+"	mtsp %3, %%sr1\n"
+"	zdep	%2, 28, 2, %%r19\n"
+"	dep	%%r0, 31, 2, %2\n"
 "	mtsar	%%r19\n"
 "	depwi,z	-2, %%sar, 32, %%r19\n"
-"	ldw	0(%%sr1,%1),%%r20\n"
-"	ldw	4(%%sr1,%1),%%r21\n"
-"	vshd	%%r0, %0, %%r22\n"
-"	vshd	%0, %%r0, %%r1\n"
+"1:	ldw	0(%%sr1,%2),%%r20\n"
+"2:	ldw	4(%%sr1,%2),%%r21\n"
+"	vshd	%%r0, %1, %%r22\n"
+"	vshd	%1, %%r0, %%r1\n"
 "	and	%%r20, %%r19, %%r20\n"
 "	andcm	%%r21, %%r19, %%r21\n"
 "	or	%%r22, %%r20, %%r20\n"
 "	or	%%r1, %%r21, %%r21\n"
-"	stw	%%r20,0(%%sr1,%1)\n"
-"	stw	%%r21,4(%%sr1,%1)\n"
-	:
+"	stw	%%r20,0(%%sr1,%2)\n"
+"	stw	%%r21,4(%%sr1,%2)\n"
+"	cmpclr,= %%r0, %%r0, %0\n"
+"3:	ldo	-2(%%r0), %0\n"
+"	.section __ex_table,\"a\"\n"
+#ifdef __LP64__
+"	.dword	1b,(3b-1b)\n"
+"	.dword  2b,(3b-2b)\n"
+#else
+"	.word	1b,(3b-1b)\n"
+"	.word	2b,(3b-2b)\n"
+#endif
+"	.previous\n"
+	: "=r" (ret)
 	: "r" (val), "r" (regs->ior), "r" (regs->isr)
 	: "r19", "r20", "r21", "r22", "r1" );
 
@@ -302,6 +381,7 @@ static int emulate_stw(struct pt_regs *r
 static int emulate_std(struct pt_regs *regs, int frreg, int flop)
 {
 	__u64 val;
+	int ret;
 
 	if (flop)
 		val = regs->fr[frreg];
@@ -310,7 +390,7 @@ static int emulate_std(struct pt_regs *r
 	else
 		val = 0;
 
-	DPRINTF("store r%d (0x" %016llx ") to " RFMT ":" RFMT " for 8 bytes\n", frreg, 
+	DPRINTF("store r%d (0x%016llx) to " RFMT ":" RFMT " for 8 bytes\n", frreg, 
 		val,  regs->isr, regs->ior);
 
 #ifdef CONFIG_PA20
@@ -319,52 +399,84 @@ static int emulate_std(struct pt_regs *r
 		return -1;
 #endif
 	__asm__ __volatile__ (
-"	mtsp %2, %%sr1\n"
-"	depd,z	%1, 60, 3, %%r19\n"
-"	depd	%%r0, 63, 3, %1\n"
+"	mtsp %3, %%sr1\n"
+"	depd,z	%2, 60, 3, %%r19\n"
+"	depd	%%r0, 63, 3, %2\n"
 "	mtsar	%%r19\n"
 "	depdi,z	-2, %%sar, 64, %%r19\n"
-"	ldd	0(%%sr1,%1),%%r20\n"
-"	ldd	8(%%sr1,%1),%%r21\n"
-"	shrpd	%%r0, %0, %%sar, %%r22\n"
-"	shrpd	%0, %%r0, %%sar, %%r1\n"
+"1:	ldd	0(%%sr1,%2),%%r20\n"
+"2:	ldd	8(%%sr1,%2),%%r21\n"
+"	shrpd	%%r0, %1, %%sar, %%r22\n"
+"	shrpd	%1, %%r0, %%sar, %%r1\n"
 "	and	%%r20, %%r19, %%r20\n"
 "	andcm	%%r21, %%r19, %%r21\n"
 "	or	%%r22, %%r20, %%r20\n"
 "	or	%%r1, %%r21, %%r21\n"
-"	std	%%r20,0(%%sr1,%1)\n"
-"	std	%%r21,8(%%sr1,%1)\n"
-	:
+"3:	std	%%r20,0(%%sr1,%2)\n"
+"4:	std	%%r21,8(%%sr1,%2)\n"
+"	cmpclr,= %%r0, %%r0, %0\n"
+"5:	ldo	-2(%%r0), %0\n"
+"	.section __ex_table,\"a\"\n"
+#ifdef __LP64__
+"	.dword	1b,(5b-1b)\n"
+"	.dword  2b,(5b-2b)\n"
+"	.dword	3b,(5b-3b)\n"
+"	.dword  4b,(5b-4b)\n"
+#else
+"	.word	1b,(5b-1b)\n"
+"	.word	2b,(5b-2b)\n"
+"	.word	3b,(5b-3b)\n"
+"	.word	4b,(5b-4b)\n"
+#endif
+"	.previous\n"
+	: "=r" (ret)
 	: "r" (val), "r" (regs->ior), "r" (regs->isr)
 	: "r19", "r20", "r21", "r22", "r1" );
 #else
     {
 	unsigned long valh=(val>>32),vall=(val&0xffffffffl);
 	__asm__ __volatile__ (
-"	mtsp	%3, %%sr1\n"
-"	zdep	%1, 29, 2, %%r19\n"
-"	dep	%%r0, 31, 2, %1\n"
+"	mtsp	%4, %%sr1\n"
+"	zdep	%2, 29, 2, %%r19\n"
+"	dep	%%r0, 31, 2, %2\n"
 "	mtsar	%%r19\n"
 "	zvdepi	-2, 32, %%r19\n"
-"	ldw	0(%%sr1,%2),%%r20\n"
-"	ldw	8(%%sr1,%2),%%r21\n"
-"	vshd	%0, %1, %%r1\n"
-"	vshd	%%r0, %0, %0\n"
-"	vshd	%1, %%r0, %1\n"
+"1:	ldw	0(%%sr1,%3),%%r20\n"
+"2:	ldw	8(%%sr1,%3),%%r21\n"
+"	vshd	%1, %2, %%r1\n"
+"	vshd	%%r0, %1, %1\n"
+"	vshd	%2, %%r0, %2\n"
 "	and	%%r20, %%r19, %%r20\n"
 "	andcm	%%r21, %%r19, %%r21\n"
-"	or	%0, %%r20, %0\n"
-"	or	%1, %%r21, %1\n"
-"	stw	%0,0(%%sr1,%2)\n"
-"	stw	%%r1,4(%%sr1,%2)\n"
-"	stw	%1,8(%%sr1,%2)\n"
-	:
+"	or	%1, %%r20, %1\n"
+"	or	%2, %%r21, %2\n"
+"3:	stw	%1,0(%%sr1,%1)\n"
+"4:	stw	%%r1,4(%%sr1,%3)\n"
+"5:	stw	%2,8(%%sr1,%3)\n"
+"	cmpclr,= %%r0, %%r0, %0\n"
+"6:	ldo	-2(%%r0), %0\n"
+"	.section __ex_table,\"a\"\n"
+#ifdef __LP64__
+"	.dword	1b,(6b-1b)\n"
+"	.dword  2b,(6b-2b)\n"
+"	.dword	3b,(6b-3b)\n"
+"	.dword  4b,(6b-4b)\n"
+"	.dword  5b,(6b-5b)\n"
+#else
+"	.word	1b,(6b-1b)\n"
+"	.word	2b,(6b-2b)\n"
+"	.word	3b,(6b-3b)\n"
+"	.word	4b,(6b-4b)\n"
+"	.word  	5b,(6b-5b)\n"
+#endif
+"	.previous\n"
+	: "r" (ret)
 	: "r" (valh), "r" (vall), "r" (regs->ior), "r" (regs->isr)
 	: "r19", "r20", "r21", "r1" );
     }
 #endif
 
-	return 0;
+	return ret;
 }
 
 void handle_unaligned(struct pt_regs *regs)
@@ -373,7 +485,7 @@ void handle_unaligned(struct pt_regs *re
 	static unsigned long last_time = 0;
         unsigned long newbase = R1(regs->iir)?regs->gr[R1(regs->iir)]:0;
 	int modify = 0;
-	int ret = -1;
+	int ret = ERR_NOTHANDLED;
 	struct siginfo si;
 	register int flop=0;	/* true if this is a flop */
 
@@ -567,7 +679,7 @@ void handle_unaligned(struct pt_regs *re
 	case OPCODE_LDCW_I:
 	case OPCODE_LDCD_S:
 	case OPCODE_LDCW_S:
-		ret = -1;	/* "undefined", but lets kill them. */
+		ret = ERR_NOTHANDLED;	/* "undefined", but lets kill them. */
 		break;
 	}
 #ifdef CONFIG_PA20
@@ -632,7 +744,7 @@ void handle_unaligned(struct pt_regs *re
 		regs->gr[R1(regs->iir)] = newbase;
 
 
-	if (ret < 0)
+	if (ret == ERR_NOTHANDLED)
 		printk(KERN_CRIT "Not-handled unaligned insn 0x%08lx\n", regs->iir);
 
 	DPRINTF("ret = %d\n", ret);
@@ -641,13 +753,25 @@ void handle_unaligned(struct pt_regs *re
 	{
 		printk(KERN_CRIT "Unaligned handler failed, ret = %d\n", ret);
 		die_if_kernel("Unaligned data reference", regs, 28);
+
+		if (ret == ERR_PAGEFAULT)
+		{
+			si.si_signo = SIGSEGV;
+			si.si_errno = 0;
+			si.si_code = SEGV_MAPERR;
+			si.si_addr = (void *)regs->ior;
+			force_sig_info(SIGSEGV, &si, current);
+		}
+		else
+		{
 force_sigbus:
-		/* couldn't handle it ... */
-		si.si_signo = SIGBUS;
-		si.si_errno = 0;
-		si.si_code = BUS_ADRALN;
-		si.si_addr = (void *)regs->ior;
-		force_sig_info(SIGBUS, &si, current);
+			/* couldn't handle it ... */
+			si.si_signo = SIGBUS;
+			si.si_errno = 0;
+			si.si_code = BUS_ADRALN;
+			si.si_addr = (void *)regs->ior;
+			force_sig_info(SIGBUS, &si, current);
+		}
 		
 		return;
 	}
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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--..5246.5A4C.6--



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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] [patch] handle pagefaults on unaligned access
Date: Sun, 19 Oct 2003 13:43:43 +0000
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To: Randolph Chung <randolph@tausq.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:19863

Hi Randolph,

I don't yet fully tested (just compile 2.6) but imho need this change:
=====
--- unaligned.c.RC.orig	2003-10-19 15:02:22.000000000 +0200
+++ unaligned.c	2003-10-19 15:03:00.000000000 +0200
@@ -474,7 +474,7 @@
  "	.word  	5b,(6b-5b)\n"
  #endif
  "	.previous\n"
-	: "r" (ret)
+	: "=r" (ret)
  	: "r" (valh), "r" (vall), "r" (regs->ior), "r" (regs->isr)
  	: "r19", "r20", "r21", "r1" );
      }
=====
hth,
	Joel

Randolph Chung wrote:
> while testing out gcj today, i was able to crash the machine
> consistently with both 2.4 and 2.6 kernel. turns out our unaligned
> handler doesn't handle page faults properly. in the case for gcj, there
> was a ldh on the edge of the page, the first byte is on a resident page,
> the 2nd byte is on a faulting page.
> 
> this patch seems to fix it (at least the case i was seeing). any 
> comments before i commit it?
> 
> thanks
> randolph
> 
> Index: arch/parisc/kernel/unaligned.c
> ===================================================================
> RCS file: /var/cvs/linux-2.4/arch/parisc/kernel/unaligned.c,v
> retrieving revision 1.21
> diff -u -p -r1.21 unaligned.c
> --- arch/parisc/kernel/unaligned.c	23 Sep 2003 20:15:33 -0000	1.21
> +++ arch/parisc/kernel/unaligned.c	19 Oct 2003 06:29:00 -0000
> @@ -128,6 +128,9 @@
>  #define IM5_3(i) IM((i),5)
>  #define IM14(i) IM((i),14)
>  
> +#define ERR_NOTHANDLED	-1
> +#define ERR_PAGEFAULT	-2
> +
>  int unaligned_enabled = 1;
>  
>  void die_if_kernel (char *str, struct pt_regs *regs, long err);
> @@ -136,16 +139,28 @@ static int emulate_ldh(struct pt_regs *r
>  {
>  	unsigned long saddr = regs->ior;
>  	unsigned long val = 0;
> +	int ret;
>  
>  	DPRINTF("load " RFMT ":" RFMT " to r%d for 2 bytes\n", 
>  		regs->isr, regs->ior, toreg);
>  
>  	__asm__ __volatile__  (
> -"	mtsp	%3, %%sr1\n"
> -"	ldbs	0(%%sr1,%2), %%r20\n"
> -"	ldbs	1(%%sr1,%2), %0\n"
> -	"depw	%%r20, 23, 24, %0\n"
> -	: "=r" (val)
> +"	mtsp	%4, %%sr1\n"
> +"1:	ldbs	0(%%sr1,%3), %%r20\n"
> +"2:	ldbs	1(%%sr1,%3), %0\n"
> +"	depw	%%r20, 23, 24, %0\n"
> +"	cmpclr,= %%r0, %%r0, %1\n"
> +"3:	ldo	-2(%%r0), %1\n"
> +"	.section __ex_table,\"a\"\n"
> +#ifdef __LP64__
> +"	.dword	1b,(3b-1b)\n"
> +"	.dword  2b,(3b-2b)\n"
> +#else
> +"	.word	1b,(3b-1b)\n"
> +"	.word	2b,(3b-2b)\n"
> +#endif
> +"	.previous\n"
> +	: "=r" (val), "=r" (ret)
>  	: "0" (val), "r" (saddr), "r" (regs->isr)
>  	: "r20" );
>  
> @@ -154,26 +169,39 @@ static int emulate_ldh(struct pt_regs *r
>  	if (toreg)
>  		regs->gr[toreg] = val;
>  
> -	return 0;
> +	return ret;
>  }
> +
>  static int emulate_ldw(struct pt_regs *regs, int toreg, int flop)
>  {
>  	unsigned long saddr = regs->ior;
>  	unsigned long val = 0;
> +	int ret;
>  
>  	DPRINTF("load " RFMT ":" RFMT " to r%d for 4 bytes\n", 
>  		regs->isr, regs->ior, toreg);
>  
>  	__asm__ __volatile__  (
> -"	zdep	%2,28,2,%%r19\n"		/* r19=(ofs&3)*8 */
> -"	mtsp	%3, %%sr1\n"
> -"	depw	%%r0,31,2,%2\n"
> -"	ldw	0(%%sr1,%2),%0\n"
> -"	ldw	4(%%sr1,%2),%%r20\n"
> +"	zdep	%3,28,2,%%r19\n"		/* r19=(ofs&3)*8 */
> +"	mtsp	%4, %%sr1\n"
> +"	depw	%%r0,31,2,%3\n"
> +"1:	ldw	0(%%sr1,%3),%0\n"
> +"2:	ldw	4(%%sr1,%3),%%r20\n"
>  "	subi	32,%%r19,%%r19\n"
>  "	mtctl	%%r19,11\n"
>  "	vshd	%0,%%r20,%0\n"
> -	: "=r" (val)
> +"	cmpclr,= %%r0, %%r0, %1\n"
> +"3:	ldo	-2(%%r0), %1\n"
> +"	.section __ex_table,\"a\"\n"
> +#ifdef __LP64__
> +"	.dword	1b,(3b-1b)\n"
> +"	.dword  2b,(3b-2b)\n"
> +#else
> +"	.word	1b,(3b-1b)\n"
> +"	.word	2b,(3b-2b)\n"
> +#endif
> +"	.previous\n"
> +	: "=r" (val), "=r" (ret)
>  	: "0" (val), "r" (saddr), "r" (regs->isr)
>  	: "r19", "r20" );
>  
> @@ -184,12 +212,13 @@ static int emulate_ldw(struct pt_regs *r
>  	else if (toreg)
>  		regs->gr[toreg] = val;
>  
> -	return 0;
> +	return ret;
>  }
>  static int emulate_ldd(struct pt_regs *regs, int toreg, int flop)
>  {
>  	unsigned long saddr = regs->ior;
>  	__u64 val = 0;
> +	int ret;
>  
>  	DPRINTF("load " RFMT ":" RFMT " to r%d for 8 bytes\n", 
>  		regs->isr, regs->ior, toreg);
> @@ -200,51 +229,77 @@ static int emulate_ldd(struct pt_regs *r
>  		return -1;
>  #endif
>  	__asm__ __volatile__  (
> -"	depd,z	%2,60,3,%%r19\n"		/* r19=(ofs&7)*8 */
> -"	mtsp	%3, %%sr1\n"
> -"	depd	%%r0,63,3,%2\n"
> -"	ldd	0(%%sr1,%2),%0\n"
> -"	ldd	8(%%sr1,%2),%%r20\n"
> +"	depd,z	%3,60,3,%%r19\n"		/* r19=(ofs&7)*8 */
> +"	mtsp	%4, %%sr1\n"
> +"	depd	%%r0,63,3,%3\n"
> +"1:	ldd	0(%%sr1,%3),%0\n"
> +"2:	ldd	8(%%sr1,%3),%%r20\n"
>  "	subi	64,%%r19,%%r19\n"
>  "	mtsar	%%r19\n"
>  "	shrpd	%0,%%r20,%%sar,%0\n"
> -	: "=r" (val)
> +"	cmpclr,= %%r0, %%r0, %1\n"
> +"3:	ldo	-2(%%r0), %1\n"
> +"	.section __ex_table,\"a\"\n"
> +#ifdef __LP64__
> +"	.dword	1b,(3b-1b)\n"
> +"	.dword  2b,(3b-2b)\n"
> +#else
> +"	.word	1b,(3b-1b)\n"
> +"	.word	2b,(3b-2b)\n"
> +#endif
> +"	.previous\n"
> +	: "=r" (val), "=r" (ret)
>  	: "0" (val), "r" (saddr), "r" (regs->isr)
>  	: "r19", "r20" );
>  #else
>      {
>  	unsigned long valh=0,vall=0;
>  	__asm__ __volatile__  (
> -"	zdep	%4,29,2,%%r19\n"		/* r19=(ofs&3)*8 */
> -"	mtsp	%5, %%sr1\n"
> -"	dep	%%r0,31,2,%4\n"
> -"	ldw	0(%%sr1,%5),%0\n"
> -"	ldw	4(%%sr1,%5),%1\n"
> -"	ldw	8(%%sr1,%5),%%r20\n"
> +"	zdep	%5,29,2,%%r19\n"		/* r19=(ofs&3)*8 */
> +"	mtsp	%6, %%sr1\n"
> +"	dep	%%r0,31,2,%5\n"
> +"1:	ldw	0(%%sr1,%6),%0\n"
> +"2:	ldw	4(%%sr1,%6),%1\n"
> +"3:	ldw	8(%%sr1,%6),%%r20\n"
>  "	subi	32,%%r19,%%r19\n"
>  "	mtsar	%%r19\n"
>  "	vshd	%0,%1,%0\n"
>  "	vshd	%1,%%r20,%1\n"
> -	: "=r" (valh), "=r" (vall)
> +"	cmpclr,= %%r0, %%r0, %2\n"
> +"4:	ldo	-2(%%r0), %2\n"
> +"	.section __ex_table,\"a\"\n"
> +#ifdef __LP64__
> +"	.dword	1b,(4b-1b)\n"
> +"	.dword  2b,(4b-2b)\n"
> +"	.dword	3b,(4b-3b)\n"
> +#else
> +"	.word	1b,(4b-1b)\n"
> +"	.word	2b,(4b-2b)\n"
> +"	.word	3b,(4b-3b)\n"
> +#endif
> +"	.previous\n"
> +	: "=r" (valh), "=r" (vall), "=r" (ret)
>  	: "0" (valh), "1" (vall), "r" (saddr), "r" (regs->isr)
>  	: "r19", "r20" );
>  	val=((__u64)valh<<32)|(__u64)vall;
>      }
>  #endif
>  
> -	DPRINTF("val = 0x" RFMT "\n", val);
> +	DPRINTF("val = 0xllx\n", val);
>  
>  	if (flop)
>  		regs->fr[toreg] = val;
>  	else if (toreg)
>  		regs->gr[toreg] = val;
>  
> -	return 0;
> +	return ret;
>  }
>  
>  static int emulate_sth(struct pt_regs *regs, int frreg)
>  {
>  	unsigned long val = regs->gr[frreg];
> +	int ret;
> +
>  	if (!frreg)
>  		val = 0;
>  
> @@ -252,19 +307,32 @@ static int emulate_sth(struct pt_regs *r
>  		val, regs->isr, regs->ior);
>  
>  	__asm__ __volatile__ (
> -"	mtsp %2, %%sr1\n"
> -"	extrw,u %0, 23, 8, %%r19\n"
> -"	stb %0, 1(%%sr1, %1)\n"
> -"	stb %%r19, 0(%%sr1, %1)\n"
> -	:
> +"	mtsp %3, %%sr1\n"
> +"	extrw,u %1, 23, 8, %%r19\n"
> +"1:	stb %1, 1(%%sr1, %2)\n"
> +"2:	stb %%r19, 0(%%sr1, %2)\n"
> +"	cmpclr,= %%r0, %%r0, %0\n"
> +"3:	ldo	-2(%%r0), %0\n"
> +"	.section __ex_table,\"a\"\n"
> +#ifdef __LP64__
> +"	.dword	1b,(3b-1b)\n"
> +"	.dword  2b,(3b-2b)\n"
> +#else
> +"	.word	1b,(3b-1b)\n"
> +"	.word	2b,(3b-2b)\n"
> +#endif
> +"	.previous\n"
> +	: "=r" (ret)
>  	: "r" (val), "r" (regs->ior), "r" (regs->isr)
>  	: "r19" );
>  
> -	return 0;
> +	return ret;
>  }
> +
>  static int emulate_stw(struct pt_regs *regs, int frreg, int flop)
>  {
>  	unsigned long val;
> +	int ret;
>  
>  	if (flop)
>  		val = ((__u32*)(regs->fr))[frreg];
> @@ -278,22 +346,33 @@ static int emulate_stw(struct pt_regs *r
>  
>  
>  	__asm__ __volatile__ (
> -"	mtsp %2, %%sr1\n"
> -"	zdep	%1, 28, 2, %%r19\n"
> -"	dep	%%r0, 31, 2, %1\n"
> +"	mtsp %3, %%sr1\n"
> +"	zdep	%2, 28, 2, %%r19\n"
> +"	dep	%%r0, 31, 2, %2\n"
>  "	mtsar	%%r19\n"
>  "	depwi,z	-2, %%sar, 32, %%r19\n"
> -"	ldw	0(%%sr1,%1),%%r20\n"
> -"	ldw	4(%%sr1,%1),%%r21\n"
> -"	vshd	%%r0, %0, %%r22\n"
> -"	vshd	%0, %%r0, %%r1\n"
> +"1:	ldw	0(%%sr1,%2),%%r20\n"
> +"2:	ldw	4(%%sr1,%2),%%r21\n"
> +"	vshd	%%r0, %1, %%r22\n"
> +"	vshd	%1, %%r0, %%r1\n"
>  "	and	%%r20, %%r19, %%r20\n"
>  "	andcm	%%r21, %%r19, %%r21\n"
>  "	or	%%r22, %%r20, %%r20\n"
>  "	or	%%r1, %%r21, %%r21\n"
> -"	stw	%%r20,0(%%sr1,%1)\n"
> -"	stw	%%r21,4(%%sr1,%1)\n"
> -	:
> +"	stw	%%r20,0(%%sr1,%2)\n"
> +"	stw	%%r21,4(%%sr1,%2)\n"
> +"	cmpclr,= %%r0, %%r0, %0\n"
> +"3:	ldo	-2(%%r0), %0\n"
> +"	.section __ex_table,\"a\"\n"
> +#ifdef __LP64__
> +"	.dword	1b,(3b-1b)\n"
> +"	.dword  2b,(3b-2b)\n"
> +#else
> +"	.word	1b,(3b-1b)\n"
> +"	.word	2b,(3b-2b)\n"
> +#endif
> +"	.previous\n"
> +	: "=r" (ret)
>  	: "r" (val), "r" (regs->ior), "r" (regs->isr)
>  	: "r19", "r20", "r21", "r22", "r1" );
>  
> @@ -302,6 +381,7 @@ static int emulate_stw(struct pt_regs *r
>  static int emulate_std(struct pt_regs *regs, int frreg, int flop)
>  {
>  	__u64 val;
> +	int ret;
>  
>  	if (flop)
>  		val = regs->fr[frreg];
> @@ -310,7 +390,7 @@ static int emulate_std(struct pt_regs *r
>  	else
>  		val = 0;
>  
> -	DPRINTF("store r%d (0x" %016llx ") to " RFMT ":" RFMT " for 8 bytes\n", frreg, 
> +	DPRINTF("store r%d (0x%016llx) to " RFMT ":" RFMT " for 8 bytes\n", frreg, 
>  		val,  regs->isr, regs->ior);
>  
>  #ifdef CONFIG_PA20
> @@ -319,52 +399,84 @@ static int emulate_std(struct pt_regs *r
>  		return -1;
>  #endif
>  	__asm__ __volatile__ (
> -"	mtsp %2, %%sr1\n"
> -"	depd,z	%1, 60, 3, %%r19\n"
> -"	depd	%%r0, 63, 3, %1\n"
> +"	mtsp %3, %%sr1\n"
> +"	depd,z	%2, 60, 3, %%r19\n"
> +"	depd	%%r0, 63, 3, %2\n"
>  "	mtsar	%%r19\n"
>  "	depdi,z	-2, %%sar, 64, %%r19\n"
> -"	ldd	0(%%sr1,%1),%%r20\n"
> -"	ldd	8(%%sr1,%1),%%r21\n"
> -"	shrpd	%%r0, %0, %%sar, %%r22\n"
> -"	shrpd	%0, %%r0, %%sar, %%r1\n"
> +"1:	ldd	0(%%sr1,%2),%%r20\n"
> +"2:	ldd	8(%%sr1,%2),%%r21\n"
> +"	shrpd	%%r0, %1, %%sar, %%r22\n"
> +"	shrpd	%1, %%r0, %%sar, %%r1\n"
>  "	and	%%r20, %%r19, %%r20\n"
>  "	andcm	%%r21, %%r19, %%r21\n"
>  "	or	%%r22, %%r20, %%r20\n"
>  "	or	%%r1, %%r21, %%r21\n"
> -"	std	%%r20,0(%%sr1,%1)\n"
> -"	std	%%r21,8(%%sr1,%1)\n"
> -	:
> +"3:	std	%%r20,0(%%sr1,%2)\n"
> +"4:	std	%%r21,8(%%sr1,%2)\n"
> +"	cmpclr,= %%r0, %%r0, %0\n"
> +"5:	ldo	-2(%%r0), %0\n"
> +"	.section __ex_table,\"a\"\n"
> +#ifdef __LP64__
> +"	.dword	1b,(5b-1b)\n"
> +"	.dword  2b,(5b-2b)\n"
> +"	.dword	3b,(5b-3b)\n"
> +"	.dword  4b,(5b-4b)\n"
> +#else
> +"	.word	1b,(5b-1b)\n"
> +"	.word	2b,(5b-2b)\n"
> +"	.word	3b,(5b-3b)\n"
> +"	.word	4b,(5b-4b)\n"
> +#endif
> +"	.previous\n"
> +	: "=r" (ret)
>  	: "r" (val), "r" (regs->ior), "r" (regs->isr)
>  	: "r19", "r20", "r21", "r22", "r1" );
>  #else
>      {
>  	unsigned long valh=(val>>32),vall=(val&0xffffffffl);
>  	__asm__ __volatile__ (
> -"	mtsp	%3, %%sr1\n"
> -"	zdep	%1, 29, 2, %%r19\n"
> -"	dep	%%r0, 31, 2, %1\n"
> +"	mtsp	%4, %%sr1\n"
> +"	zdep	%2, 29, 2, %%r19\n"
> +"	dep	%%r0, 31, 2, %2\n"
>  "	mtsar	%%r19\n"
>  "	zvdepi	-2, 32, %%r19\n"
> -"	ldw	0(%%sr1,%2),%%r20\n"
> -"	ldw	8(%%sr1,%2),%%r21\n"
> -"	vshd	%0, %1, %%r1\n"
> -"	vshd	%%r0, %0, %0\n"
> -"	vshd	%1, %%r0, %1\n"
> +"1:	ldw	0(%%sr1,%3),%%r20\n"
> +"2:	ldw	8(%%sr1,%3),%%r21\n"
> +"	vshd	%1, %2, %%r1\n"
> +"	vshd	%%r0, %1, %1\n"
> +"	vshd	%2, %%r0, %2\n"
>  "	and	%%r20, %%r19, %%r20\n"
>  "	andcm	%%r21, %%r19, %%r21\n"
> -"	or	%0, %%r20, %0\n"
> -"	or	%1, %%r21, %1\n"
> -"	stw	%0,0(%%sr1,%2)\n"
> -"	stw	%%r1,4(%%sr1,%2)\n"
> -"	stw	%1,8(%%sr1,%2)\n"
> -	:
> +"	or	%1, %%r20, %1\n"
> +"	or	%2, %%r21, %2\n"
> +"3:	stw	%1,0(%%sr1,%1)\n"
> +"4:	stw	%%r1,4(%%sr1,%3)\n"
> +"5:	stw	%2,8(%%sr1,%3)\n"
> +"	cmpclr,= %%r0, %%r0, %0\n"
> +"6:	ldo	-2(%%r0), %0\n"
> +"	.section __ex_table,\"a\"\n"
> +#ifdef __LP64__
> +"	.dword	1b,(6b-1b)\n"
> +"	.dword  2b,(6b-2b)\n"
> +"	.dword	3b,(6b-3b)\n"
> +"	.dword  4b,(6b-4b)\n"
> +"	.dword  5b,(6b-5b)\n"
> +#else
> +"	.word	1b,(6b-1b)\n"
> +"	.word	2b,(6b-2b)\n"
> +"	.word	3b,(6b-3b)\n"
> +"	.word	4b,(6b-4b)\n"
> +"	.word  	5b,(6b-5b)\n"
> +#endif
> +"	.previous\n"
> +	: "r" (ret)
>  	: "r" (valh), "r" (vall), "r" (regs->ior), "r" (regs->isr)
>  	: "r19", "r20", "r21", "r1" );
>      }
>  #endif
>  
> -	return 0;
> +	return ret;
>  }
>  
>  void handle_unaligned(struct pt_regs *regs)
> @@ -373,7 +485,7 @@ void handle_unaligned(struct pt_regs *re
>  	static unsigned long last_time = 0;
>          unsigned long newbase = R1(regs->iir)?regs->gr[R1(regs->iir)]:0;
>  	int modify = 0;
> -	int ret = -1;
> +	int ret = ERR_NOTHANDLED;
>  	struct siginfo si;
>  	register int flop=0;	/* true if this is a flop */
>  
> @@ -567,7 +679,7 @@ void handle_unaligned(struct pt_regs *re
>  	case OPCODE_LDCW_I:
>  	case OPCODE_LDCD_S:
>  	case OPCODE_LDCW_S:
> -		ret = -1;	/* "undefined", but lets kill them. */
> +		ret = ERR_NOTHANDLED;	/* "undefined", but lets kill them. */
>  		break;
>  	}
>  #ifdef CONFIG_PA20
> @@ -632,7 +744,7 @@ void handle_unaligned(struct pt_regs *re
>  		regs->gr[R1(regs->iir)] = newbase;
>  
>  
> -	if (ret < 0)
> +	if (ret == ERR_NOTHANDLED)
>  		printk(KERN_CRIT "Not-handled unaligned insn 0x%08lx\n", regs->iir);
>  
>  	DPRINTF("ret = %d\n", ret);
> @@ -641,13 +753,25 @@ void handle_unaligned(struct pt_regs *re
>  	{
>  		printk(KERN_CRIT "Unaligned handler failed, ret = %d\n", ret);
>  		die_if_kernel("Unaligned data reference", regs, 28);
> +
> +		if (ret == ERR_PAGEFAULT)
> +		{
> +			si.si_signo = SIGSEGV;
> +			si.si_errno = 0;
> +			si.si_code = SEGV_MAPERR;
> +			si.si_addr = (void *)regs->ior;
> +			force_sig_info(SIGSEGV, &si, current);
> +		}
> +		else
> +		{
>  force_sigbus:
> -		/* couldn't handle it ... */
> -		si.si_signo = SIGBUS;
> -		si.si_errno = 0;
> -		si.si_code = BUS_ADRALN;
> -		si.si_addr = (void *)regs->ior;
> -		force_sig_info(SIGBUS, &si, current);
> +			/* couldn't handle it ... */
> +			si.si_signo = SIGBUS;
> +			si.si_errno = 0;
> +			si.si_code = BUS_ADRALN;
> +			si.si_addr = (void *)regs->ior;
> +			force_sig_info(SIGBUS, &si, current);
> +		}
>  		
>  		return;
>  	}



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Subject: Re: [parisc-linux] evolution (1.4.5-1) do_page_fault?
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Too bad,

The pb re-occurs also with 2.4.21-32 but this time during two kernels 
(2.4.22 && 2.6) was build at the same time. When 2.6 was finished, I can 
re-launch evolution without pb. Could it be a pb of swap? How may check 
if its limits were reach at this moment?

Thanks,
	Joel


Joel Soete wrote:
> Carlos,
> 
> I just reboot my C110 but with a kernel 2.4.21-32 and evolution works 
> fine. OTC with k2.6 still failled. I will try to see later what is wrong :(
> 
> Thanks again,
>     Joel
> 
> 
> Joel Soete wrote:
> 
>> Hi Carlos,
>>
>> I just haven't such hw at my office where otc i can do some other 
>> check on
>> the b2k model.
>>
>> On this b2k (also installed with unstable debian) run fine the same 
>> release
>> of evolution (otc what i said).
>> But it is booted with last 2.4 (a merge of 23-pre7 and 22-pa12) with 256M
>> of ram (only 128k for c110) and without mozilla-psm (a recommended or 
>> suggested
>> additional pkg added on c110).
>>
>> So a lot of test to figure out the present pb :)
>>
>> Thanks a lot ( I will advise you :) )
>>     Joel
>>
>>
>>> -- Original Message --
>>> From: Carlos O'Donell <carlos@baldric.uwo.ca>
>>> To: Joel Soete <soete.joel@tiscali.be>
>>> Cc: parisc-linux@parisc-linux.org
>>> Date: Sun, 12 Oct 2003 16:02:02 -0400
>>> Subject: Re: [parisc-linux] evolution (1.4.5-1) do_page_fault?
>>>
>>>
>>> On Sun, Oct 12, 2003 at 06:42:55PM +0000, Joel Soete wrote:
>>> Hello Carlos,
>>>
>>> I launch 'gbd evolution'
>>> (gdb) run
>>> to determine the new address in this env but failed before with message:
>>> Program received signal SIG37, Real-time event 37.
>>
>>
>>
>>>> 0x4193c574 in malloc_set_state () from /lib/libc.so.6
>>>
>>>
>>> what's your opinion?
>>
>>
>>
>> That's libpthreads realtime singal mechanism working.
>> You need to set "handle all nostop" and "handle all pass" in gdb.
>>
>> Then you can do the math with /proc/<pid>
>>
>>> maps and the dying address to
>>
>>
>> calculate the _real_ library offset and function symbolic name.
>>
>> c.
>> _______________________________________________
>> parisc-linux mailing list
>> parisc-linux@lists.parisc-linux.org
>> http://lists.parisc-linux.org/mailman
>>
>>> listinfo/parisc-linux
>>
>>
>>
>>
>>
>> -------------------------------------------------------------------------
>> L'Internet rapide, c'est pour tout le monde. Tiscali ADSL, 19,50 Euro
>> pendant 3 mois! http://reg.tiscali.be/default.asp?lg=fr
>>
>> _______________________________________________
>> parisc-linux mailing list
>> parisc-linux@lists.parisc-linux.org
>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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Subject: Re: [parisc-linux] glibc 2.3.2-9 for hppa - "when hell freezes over" release
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On Fri, Oct 17, 2003 at 02:12:52PM -0400, Carlos O'Donell wrote:
> Please wait 2 days before doing the upload, I am in the process 
> of getting other testers to make sure this release is of the
> highest quality possible. If the testers do not agree with the
> release quality I will request by email a delay of 2 more days 
> to repatch and test, followed by an update to the list.

Requesting 2 more days.

- nscd is faulting on unaligned loads during real workload testing.
	= Remove unaligned handler and debug from core.

- Looking into mlockall failures.

Cheers,
Carlos.



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Subject: Re: [parisc-linux] [patch] handle pagefaults on unaligned access
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> while testing out gcj today, i was able to crash the machine
> consistently with both 2.4 and 2.6 kernel. turns out our unaligned
> handler doesn't handle page faults properly. in the case for gcj, there
> was a ldh on the edge of the page, the first byte is on a resident page,
> the 2nd byte is on a faulting page.

What's generating the unaligned ldh?  This will really kill performance.
GCC shouldn't do this...

My system also crashed last night, probably running the gcj testsuite.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> What's generating the unaligned ldh?  This will really kill performance.
> GCC shouldn't do this...

it was one of the testcases, but i haven't figured out which one yet. it
doesn't do this for every testcase...

> My system also crashed last night, probably running the gcj testsuite.

probably, it crashed my machine 3 times before i figured it out :-)

if you do "echo 0 >> /proc/sys/kernel/unaligned-trap" before you run the
test then it should SIGBUS when it does this... 

i'll try to debug this a bit more as well. but we shouldn't crash the
kernel in any case :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi pa,

Please apologies, I forget to mentioned an important matter:
with 2.6.0-test-pa1 it is not anymore a do_page_fault() but:
evolution (pid 2454): Protection id trap (code 27) 
 
 
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI 
                            PSW: 00000000000001000000000000001111 Not 
tainted                                                       r00-03 
00000000 ffffff9c 1016fadc 15207b60 
                         r04-07  00000001 0027f220 000000c9 15207b60 
                                                          r08-11 
00000000 0027f228 00000001 fffffff2 
                         r12-15  418db608 418db718 418215a8 418215a8 
                                                          r16-19 
418db608 418215a8 00000070 00000000 
                         r20-23  00000001 00000002 0027f226 15207b6e 
                                                          r24-27 
00000000 00000001 16253f60 10374010 
                         r28-31  00000000 00000005 16028140 1016f8c0 
                                                          sr0-3 
00000000 00000050 00000000 00000050 
                         sr4-7   00000000 00000000 00000000 00000000 
 
 
                    IASQ: 00000000 00000000 IAOQ: 1016fbac 1016fbb0 
                                                      IIR: 0ed3d240 
ISR: 00000050  IOR: 0027f226 
                CPU:        0   CR30: 16028000 CR31: 103cd000 
                                                 ORIG_R28: 418215a8 
 
           IAOQ[0]: sys_poll+0x1f4/0x214 
                                            IAOQ[1]: 
sys_poll+0x1f8/0x214 
                        RP(r2): sys_poll+0x124/0x214 


as well as for 2.4:
evolution (pid 1045): Protection id trap (code 27) 
 
 
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI 
                            PSW: 00000000000011101111111100001111 Not 
tainted                                                       r00-03 
00000000 00000000 1010e01c 12b1f244 
                         r04-07  faf02700 15310268 00000000 12b1f244 
                                                          r08-11 
00000000 15310460 faf02710 0000000b 
                         r12-15  00000000 418db718 418db608 00142980 
                                                          r16-19 
15310268 faf01e20 00000022 00000000 
                         r20-23  00000000 000000b0 00000001 15310460 
                                                          r24-27 
0000007f 15310509 faf02710 10330010 
                         r28-31  0000000b 00000001 15310740 10136da4 
                                                          sr0-3 
00000088 00000088 00000000 00000088 
                         sr4-7   00000000 00000000 00000000 00000000 
 
 
                    IASQ: 00000000 00000000 IAOQ: 102ec738 102ec730 
                                                      IIR: 0f415222 
ISR: 00000088  IOR: faf02710 
                CPU:        0   CR30: 15310000 CR31: 103d8000 
                                                 ORIG_R28: 00000000 
 


Sorry,
	Joel


Joel Soete wrote:
> Too bad,
> 
> The pb re-occurs also with 2.4.21-32 but this time during two kernels 
> (2.4.22 && 2.6) was build at the same time. When 2.6 was finished, I can 
> re-launch evolution without pb. Could it be a pb of swap? How may check 
> if its limits were reach at this moment?
> 
> Thanks,
>     Joel
> 
> 
> Joel Soete wrote:
> 
>> Carlos,
>>
>> I just reboot my C110 but with a kernel 2.4.21-32 and evolution works 
>> fine. OTC with k2.6 still failled. I will try to see later what is 
>> wrong :(
>>
>> Thanks again,
>>     Joel
>>
>>
>> Joel Soete wrote:
>>
>>> Hi Carlos,
>>>
>>> I just haven't such hw at my office where otc i can do some other 
>>> check on
>>> the b2k model.
>>>
>>> On this b2k (also installed with unstable debian) run fine the same 
>>> release
>>> of evolution (otc what i said).
>>> But it is booted with last 2.4 (a merge of 23-pre7 and 22-pa12) with 
>>> 256M
>>> of ram (only 128k for c110) and without mozilla-psm (a recommended or 
>>> suggested
>>> additional pkg added on c110).
>>>
>>> So a lot of test to figure out the present pb :)
>>>
>>> Thanks a lot ( I will advise you :) )
>>>     Joel
>>>
>>>
>>>> -- Original Message --
>>>> From: Carlos O'Donell <carlos@baldric.uwo.ca>
>>>> To: Joel Soete <soete.joel@tiscali.be>
>>>> Cc: parisc-linux@parisc-linux.org
>>>> Date: Sun, 12 Oct 2003 16:02:02 -0400
>>>> Subject: Re: [parisc-linux] evolution (1.4.5-1) do_page_fault?
>>>>
>>>>
>>>> On Sun, Oct 12, 2003 at 06:42:55PM +0000, Joel Soete wrote:
>>>> Hello Carlos,
>>>>
>>>> I launch 'gbd evolution'
>>>> (gdb) run
>>>> to determine the new address in this env but failed before with 
>>>> message:
>>>> Program received signal SIG37, Real-time event 37.
>>>
>>>
>>>
>>>
>>>>> 0x4193c574 in malloc_set_state () from /lib/libc.so.6
>>>>
>>>>
>>>>
>>>> what's your opinion?
>>>
>>>
>>>
>>>
>>> That's libpthreads realtime singal mechanism working.
>>> You need to set "handle all nostop" and "handle all pass" in gdb.
>>>
>>> Then you can do the math with /proc/<pid>
>>>
>>>> maps and the dying address to
>>>
>>>
>>>
>>> calculate the _real_ library offset and function symbolic name.
>>>
>>> c.
>>> _______________________________________________
>>> parisc-linux mailing list
>>> parisc-linux@lists.parisc-linux.org
>>> http://lists.parisc-linux.org/mailman
>>>
>>>> listinfo/parisc-linux
>>>
>>>
>>>
>>>
>>>
>>>
>>> ------------------------------------------------------------------------- 
>>>
>>> L'Internet rapide, c'est pour tout le monde. Tiscali ADSL, 19,50 Euro
>>> pendant 3 mois! http://reg.tiscali.be/default.asp?lg=fr
>>>
>>> _______________________________________________
>>> parisc-linux mailing list
>>> parisc-linux@lists.parisc-linux.org
>>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>>
>>
>>
>> _______________________________________________
>> parisc-linux mailing list
>> parisc-linux@lists.parisc-linux.org
>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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Hi pa,

I noticed from a certain time that (but always forget to report, sorry):
update-menus[1098]: Cannot lock /var/run/update-menus.pid: Resource 
temporarily unavailable Aborting.

Is anybody else encounter also this pb (with debian/unstable at least)?

Joel



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Subject: [parisc-linux] HPPA FPU Specification? (FE_INEXACT raised by accident)
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jda,

I've noticed that I cannot generate an underflow or overflow exception
without also forcing an inexact exception on my PA 2.0 system. Are you
familiar with this behaviour at all? I'm trying to straighten our fenv
setup, and this is really the last crinkle.

Raising an overflow is done with "DBL_MAX + DBL_MAX", while the
underflow is "DBL_MIN/3.0". Both raise FE_INEXACT aswell.

Cheers,
Carlos.



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Subject: Re: [parisc-linux] evolution (1.4.5-1) 'protection id trap' [was: do_page_fault?]
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On Sun, Oct 19, 2003 at 07:49:08PM +0000, Joel Soete wrote:
> Hi pa,
> 
> Please apologies, I forget to mentioned an important matter:
> with 2.6.0-test-pa1 it is not anymore a do_page_fault() but:
> evolution (pid 2454): Protection id trap (code 27) 

Do not wrap lines like this. 
 
> YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI 
>                            PSW: 00000000000001000000000000001111 Not 
> tainted                                                       r00-03 

You should really run evolution through gdb. Remember to use "handle all
nostop" and "handle all pass".

c.


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Subject: [parisc-linux] Re: HPPA FPU Specification? (FE_INEXACT raised by accident)
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> I've noticed that I cannot generate an underflow or overflow exception
> without also forcing an inexact exception on my PA 2.0 system. Are you
> familiar with this behaviour at all? I'm trying to straighten our fenv
> setup, and this is really the last crinkle.

I suggest looking at page 10-7.  It describes the PA 2.0 behavior
for this situation.  I'm not an IEEE so I don't know offhand what it
mandates.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Sun, Oct 19, 2003 at 02:13:42PM -0400, Carlos O'Donell wrote:
> On Fri, Oct 17, 2003 at 02:12:52PM -0400, Carlos O'Donell wrote:
> > Please wait 2 days before doing the upload, I am in the process 
> > of getting other testers to make sure this release is of the
> > highest quality possible. If the testers do not agree with the
> > release quality I will request by email a delay of 2 more days 
> > to repatch and test, followed by an update to the list.
> 
> Requesting 2 more days.
> 
> - nscd is faulting on unaligned loads during real workload testing.
> 	= Remove unaligned handler and debug from core.

Fixed. Typo in syscall cancellation code. The corner case was a six arg
syscall that used said typo'd code (recvfrom). This should really be the
case to add threaded networking test code into libc's testsuite ;)
 
> - Looking into mlockall failures.

Passes QA on a 2.4 kernel (posix testsuite). 2.6 seems broken, though
that is unrelated to glibc.

Will produce a new patch and new testing debs. Thanks go to all the
testers that turned up these problems.

c.



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From - Thu Nov 08 21:29:40 2018
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Subject: Re: [parisc-linux] hppa glibc 2.3.2-9 available for the brave testers!
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On Sat, Oct 18, 2003 at 06:25:27PM -0400, John David Anglin wrote:
> > I've installed the libc6 and libc6-dev debs on both c3k's
> > and they both are working fine (well, mozilla-firebird is
> > still broken, not new).
> 
> I don't know about firebird but standard mozilla needs some pa specific
> configuration stuff added before it will build/work.  I made a first
> cut at this and started debugging the app a few weeks ago, but got
> caught up in other things.

I'm surprised that more things aren't broken, the typo in sysdep-cancel
made all six argument syscalls unsuable :)

Thanks for the testing guys!

c.



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On Sat, Oct 18, 2003 at 11:54:43PM +0000, Joel Soete wrote:
> So squid didn't hang any more at start up but still failled:
> 'Setting up squid (2.5.4-2) ...
> Creating squid spool directory structure
> FATAL: Could not determine fully qualified hostname.  Please set 
> 'visible_hostname'

recvfrom, six argument syscall, fails. I found this out people who use
nscd found it crashing.

c.



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On Sun, Oct 19, 2003 at 07:16:03PM -0400, John David Anglin wrote:
> > I've noticed that I cannot generate an underflow or overflow exception
> > without also forcing an inexact exception on my PA 2.0 system. Are you
> > familiar with this behaviour at all? I'm trying to straighten our fenv
> > setup, and this is really the last crinkle.
> 
> I suggest looking at page 10-7.  It describes the PA 2.0 behavior
> for this situation.  I'm not an IEEE so I don't know offhand what it
> mandates.

Multiple exceptions per instruction is not the intended behaviour :)
I need two numbers, that when added only overflow, not overflow and
inexact. The same to be said for underflow. Perhaps I just need to 
dig more.

c.



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Hi Joel,

Joel Soete schrieb:

> Hi pa,
>
> I noticed from a certain time that (but always forget to report, sorry):
> update-menus[1098]: Cannot lock /var/run/update-menus.pid: Resource 
> temporarily unavailable Aborting.
>
> Is anybody else encounter also this pb (with debian/unstable at least)? 

I also encounter this problem on my 715 running debian unstable. I think 
running update-menus during upgrade takes too much time, so dpkg thinks 
it isn't corresponding anymore. When running update-menus from prompt I 
don't get any error messages.

>
>
> Joel
>
Ruediger



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> > - Looking into mlockall failures.
>
> Passes QA on a 2.4 kernel (posix testsuite). 2.6 seems broken, though
> that is unrelated to glibc.

Yes, this is a known problem. We've seen it on ia64 also. I believe
the fix is in Linus's tree, but I'm not sure if it made it into test8
or not.

John Marvin
jsm@fc.hp.com


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Subject: Re: [parisc-linux] Re: HPPA FPU Specification? (FE_INEXACT raised by accident)
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> > I suggest looking at page 10-7.  It describes the PA 2.0 behavior
> > for this situation.  I'm not an IEEE so I don't know offhand what it
> > mandates.
> 
> Multiple exceptions per instruction is not the intended behaviour :)
> I need two numbers, that when added only overflow, not overflow and
> inexact. The same to be said for underflow. Perhaps I just need to 
> dig more.

Well 10-7 talks explicitly about what happens when you get both
exceptions on a single instruction.  On the otherhand, the discussion
of the inexact exception seems to imply that inexact should only occur
in an overflow/underflow situation when an overflow/underflow exception
doesn't occur.  Possibly, the PA implementation is not consistent with
IEEE mandated behavior, but I can't be sure.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Hi Ruediger,

Yes I see, that was common to all system at my disposal (b180, b2k, c110).

Thanks for advise,
    Joel

>-- Original Message --
>Date: Mon, 20 Oct 2003 07:37:06 +0200
>From: Ruediger Scholz <rscholz@hrzpub.tu-darmstadt.de>
>To: Joel Soete <soete.joel@tiscali.be>, parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] menu: update-menus failled on hppa?
>
>
>Hi Joel,

Joel Soete schrieb:

> Hi pa,
>
> I noticed from a certain time that (but always forget to report, sorry):
> update-menus[1098]: Cannot lock /var/run/update-menus.pid: Resource 
> temporarily unavailable Aborting.
>
> Is anybody els
> encounter also this pb (with debian/unstable at least)? 

I also encounter this problem on my 715 running debian unstable. I think

running update-menus during upgrade takes too much time, so dpkg thinks 
it isn't corresponding anymore. When runni
>g update-menus from prompt I 
don't get any error messages.

>
>
> Joel
>
Ruediger




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Subject: Re: [parisc-linux] Re: HPPA FPU Specification? (FE_INEXACT raised by accident)
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On Mon, Oct 20, 2003 at 11:30:34AM -0400, John David Anglin wrote:
> > > I suggest looking at page 10-7.  It describes the PA 2.0 behavior
> > > for this situation.  I'm not an IEEE so I don't know offhand what it
> > > mandates.
> > 
> > Multiple exceptions per instruction is not the intended behaviour :)
> > I need two numbers, that when added only overflow, not overflow and
> > inexact. The same to be said for underflow. Perhaps I just need to 
> > dig more.
> 
> Well 10-7 talks explicitly about what happens when you get both
> exceptions on a single instruction.  On the otherhand, the discussion
> of the inexact exception seems to imply that inexact should only occur
> in an overflow/underflow situation when an overflow/underflow exception
> doesn't occur.  Possibly, the PA implementation is not consistent with
> IEEE mandated behavior, but I can't be sure.

My reading of 10-7 and the equivalent sections in the PA 1.1 arch
doc indicate that it _can_ happen outside of an overflow/underflow
situation. It just so happens that it can also be coupled with
underflow/overflow exceptions.

Does having them both at the same time violates the behaviour of
"feraiseexcept" in the ISO C standard (especially in the case of
underflow)? If feraiseexcept is called and only an underflow 
requested, but underflow and inexact are enabled, what then?

c.



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> > > Multiple exceptions per instruction is not the intended behaviour :)
> > > I need two numbers, that when added only overflow, not overflow and
> > > inexact. The same to be said for underflow. Perhaps I just need to 
> > > dig more.
> > 
> > Well 10-7 talks explicitly about what happens when you get both
> > exceptions on a single instruction.  On the otherhand, the discussion
> > of the inexact exception seems to imply that inexact should only occur
> > in an overflow/underflow situation when an overflow/underflow exception
> > doesn't occur.  Possibly, the PA implementation is not consistent with
> > IEEE mandated behavior, but I can't be sure.
> 
> My reading of 10-7 and the equivalent sections in the PA 1.1 arch
> doc indicate that it _can_ happen outside of an overflow/underflow
> situation. It just so happens that it can also be coupled with
> underflow/overflow exceptions.

I wasn't saying that inexact can't happen in other circumstances.  I
was wrong in including undeflow in the above and I mis-rembered the
statement at the top of 10-11.  It actually states that an inexact
exception shall be signaled if an overflow occurs without an overflow
trap.

> Does having them both at the same time violates the behaviour of
> "feraiseexcept" in the ISO C standard (especially in the case of
> underflow)? If feraiseexcept is called and only an underflow 
> requested, but underflow and inexact are enabled, what then?

Does this help?  The standard says

"Whether the feraiseexcept function additionally raises the inexact
exception whenever it raises the overflow or underflow exceptions is
implementation defined."

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] Re: HPPA FPU Specification? (FE_INEXACT raised by accident)
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> > Does having them both at the same time violates the behaviour of
> > "feraiseexcept" in the ISO C standard (especially in the case of
> > underflow)? If feraiseexcept is called and only an underflow 
> > requested, but underflow and inexact are enabled, what then?
> 
> Does this help?  The standard says
> 
> "Whether the feraiseexcept function additionally raises the inexact
> exception whenever it raises the overflow or underflow exceptions is
> implementation defined."

Also, in F.7.6.2,

"If the argument to the feraiseexcept function in <fenv.h> represents
IEC 60559 valid coincident exceptions for atomic operations (namely
overflow and inexact, or underflow and inexact) then overflow or
underflow is raised before inexact."

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] Re: HPPA FPU Specification? (FE_INEXACT raised by accident)
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> > Does having them both at the same time violates the behaviour of
> > "feraiseexcept" in the ISO C standard (especially in the case of
> > underflow)? If feraiseexcept is called and only an underflow 
> > requested, but underflow and inexact are enabled, what then?
> 
> Does this help?  The standard says
> 
> "Whether the feraiseexcept function additionally raises the inexact
> exception whenever it raises the overflow or underflow exceptions is
> implementation defined."

Ah! I must admit I missed that bit. It does help. It means that I can
officially mark our 'fenv' as compliant and wash my hands clean of any
worry :)

c.



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Subject: [parisc-linux] fenv laid to rest, 50% done porting dbl-64 to ldbl-64, no testing yet.
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On Mon, Oct 20, 2003 at 12:56:10PM -0400, John David Anglin wrote:
> > > Does having them both at the same time violates the behaviour of
> > > "feraiseexcept" in the ISO C standard (especially in the case of
> > > underflow)? If feraiseexcept is called and only an underflow 
> > > requested, but underflow and inexact are enabled, what then?
> > 
> > Does this help?  The standard says
> > 
> > "Whether the feraiseexcept function additionally raises the inexact
> > exception whenever it raises the overflow or underflow exceptions is
> > implementation defined."
> 
> Also, in F.7.6.2,
> 
> "If the argument to the feraiseexcept function in <fenv.h> represents
> IEC 60559 valid coincident exceptions for atomic operations (namely
> overflow and inexact, or underflow and inexact) then overflow or
> underflow is raised before inexact."

Yes, I have already taken this into account. Thanks for all the help
with spec interpretation. I appreciate the feedback. We pass all the
fenv tests in glibc, but still fail the long double support. I'm about
50% done porting dbl-64 to ldbl-64, might get done in the next few 
weeks. It would finally give us a functioning long double :)

c.



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Subject: Re: [parisc-linux] fenv laid to rest, 50% done porting dbl-64 to ldbl-64, no testing yet.
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> Yes, I have already taken this into account. Thanks for all the help
> with spec interpretation. I appreciate the feedback. We pass all the
> fenv tests in glibc, but still fail the long double support. I'm about
> 50% done porting dbl-64 to ldbl-64, might get done in the next few 
> weeks. It would finally give us a functioning long double :)

I think we should hold off on implementing this until we get a final
decision from HP on whether they will release their quadlib or not.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Mon, Oct 20, 2003 at 01:49:17PM -0400, John David Anglin wrote:
> > Yes, I have already taken this into account. Thanks for all the help
> > with spec interpretation. I appreciate the feedback. We pass all the
> > fenv tests in glibc, but still fail the long double support. I'm about
> > 50% done porting dbl-64 to ldbl-64, might get done in the next few 
> > weeks. It would finally give us a functioning long double :)
> 
> I think we should hold off on implementing this until we get a final
> decision from HP on whether they will release their quadlib or not.

Noted. I have reordered my hacking queue.

a- Generate new testing deb's for glibc
	= Includes providing debian with a new .dpatch
	(1-2 days)
b- Fix _r_debug.r_map loader problems.
	(Timeline unknown)
c- Finish light-weight kernel syscalls for atomic ops
	(A few weeks)
d- Continue implementing ldbl-64 based on dbl-64.
	= The first 50% was a "test the waters" patch.
	= It looks *very* feasible and easy to test.
	= Function renaming, rewriting, casting, and mangling.
	(A few weeks)

In parallel with my usual upstream pushes.

If HP gets up off their haunches before I get to "d-" then they win :),
else I will continue my work on ldbl-64. I *will* hold-off on the
release of such an implementation in favour of the 128-bit ldbl. I know
full well that once we release the ldbl-64 it will become our ABI.

c.



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Subject: [parisc-linux] (Round 2) hppa glibc 2.3.2-9 available for the brave testers (Round 2)!
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debian-hppa, 
parisc-linux,

New testing deb's can be found at:

ftp://ftp.parisc-linux.org/unofficial-debs/glibc_2.3.2-9_2003-10-20/

They fix the following problems encountered by testers:

- Six argument cancellable syscalls don't crash your program anymore.
- Calling feraiseexcept with FE_INEXACT raises the correct exception and
  flag bits.

Cheers,
Carlos.

On Fri, Oct 17, 2003 at 02:09:12PM -0400, Carlos O'Donell wrote:
> --- CALLING ALL TESTERS! ---
> 
> glibc 2.3.2 is complete for HPPA. We've gotten rid of the following
> long standing test-suite errors (bug-iconv3, and test-fenv).
> 
> The regressions in 2.3.2 were caused by incorrect handling of the PIC
> register by the kernel, but fixed in glibc. Most cases for our stack
> were handled incorrectly (stack grows up cases), but are fixed in this
> release.
> 
> ftp://ftp.parisc-linux.org/unofficial-debs/glibc_2.3.2-9_2003-10-16/
> 
> Download all the debs and install with:
> 
> dpkg -i libc6_*.deb
> (Followed by dpkg -i of the rest in any order, libc6 must install first) 
> 
> Please do this only if you consider yourself a well seasoned linux-type
> person. If that dpkg install fails for any reason you might be in
> trouble. I'm running these debs on all my boxes, and I've tested in a
> chroot, rebuilt our toolchain, and ran lmbench, gnome-session, nautilus,
> and abi-word.
> 
> http://www.baldric.uwo.ca/~carlos/a500-gnome-abiword.png
> 
> Thanks go out to everyone for all the moral support and fun! 
> 
> --- TEST IT AND REPORT BACK ... PLEASE! :) ---
> 
> == DISCLAIMER ===
> I do not guarantee that these debs won't cause your computer to explode
> like a pineapple grenade, showering shrapnel and fiery death on all your
> loved ones.
> == DISCLAIMER ===



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Subject: Re: [parisc-linux] glibc 2.3.2-9 for hppa - "when hell freezes over" release
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	LaMont Jones <lamont@debian.com>
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On Sun, Oct 19, 2003 at 07:50:05PM -0400, Carlos O'Donell wrote:
> Will produce a new patch and new testing debs. Thanks go to all the
> testers that turned up these problems.

New debs fix reported problems:
a. Six argument syscall faiulres.
b. feraiseexcept(FE_INEXACT) doesn't raise FE_INEXACT excption.

New patch available at:
http://www.baldric.uwo.ca/~carlos/glibc232-hppa-full-2003-10-20.dpatch

Follow the instructions provided in the original email:
1. Remove all previous hppa patches.
2. Add this .dpatch as the only hppa patch.

Upload requested :) Lets make userspace churn...

Cheers,
Carlos.



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--C0_77FD4BE.2D9AC.9..1560
Content-Type: text/html;
Content-Transfer-Encoding: quoted-printable

<body bgcolor=3D"#FFFFFF" text=3D"#000000" link=3D"#FFFF00" vlink=3D"#FFFF=
00" alink=3D"#FFFF00">
<table width=3D"531" height=3D"44" align=3D"center" bgcolor=3D"#950000"><!=
-- function -->
<tr><td align=3D"center" valign=3D"middle" width=3D"529"><b><font color=3D=
"#FFFFFF" face=3D"Verdana" size=3D"5">H<!-- ravenous -->ot
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aberrate -->ed go<!-- impertinent -->od!</font></b></td></tr></table>=

<table width=3D"527" height=3D"201" align=3D"center" bgcolor=3D"#990000"><=
tr> 
<td align=3D"center" valign=3D"top" bgcolor=3D"#990000" height=3D"178"> 
<table width=3D"525" height=3D"128" align=3D"center"><tr><!-- =
holm -->
<td align=3D"center" valign=3D"middle" bgcolor=3D"#FFFFFF" height=3D"192">=

<p align=3D"left"><!-- dietary --><font color=3D"#000000" face=3D"Ver=
dana" size=3D"4">See
 the ho<!-- duopoly -->tt<!-- cognizable -->est as<!-- =
critter -->s<!-- angelica -->ed mo<!-- battery -->ms getting=
 f<!-- equitation -->uc<!-- winfield -->ked good and ha<!-- =
awesome -->rd. The <!-- mumford -->way there
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bang -->st.</font>
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ck - they just can't res<!-- poncho -->ist.</font></p>
 <p align=3D"center"><font color=3D"#000000" face=3D"Verdana" size=3D"4"><=
a href=3D"http://process@www.surfbling.com/mi/index.html?=
acre" style=3D"color: #000000"><!-- brinkmanship -->Cl<!-- =
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studebaker -->EE to<!-- althea -->ur</a></font></td><!-- =
briny --></tr></table></td></tr><!-- sharpe --></table>
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-- squad --><tr> 
<td align=3D"center" valign=3D"middle" width=3D"525"><b><font color=3D"#00=
0000" face=3D"Verdana, Arial, Helvetica, sans-serif" size=3D"2"><a href=3D=
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 decolletage -->ase</a></p></body>
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--C0_77FD4BE.2D9AC.9..1560--



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Subject: Re: [parisc-linux] evolution (1.4.5-1) 'protection id trap' [was: do_page_fault?]
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To: "Carlos O'Donell" <carlos@baldric.uwo.ca>
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Hi Carlos,

Sorry, for bad wrap (in fact cut and past behaviour was different is the
src is xterm or a minicom, and I don't pay attention: my bad).

Sorry also if the 'original message' below was so badly inserted, but my
isp support couldn't help me to fix this pb :(

Finaly, I would also like to trace this pb with gdb but this c110 is a bit
slow and requested many time to compile another kernel to allow me to compare
2.4 and 2.6 behaviour :(. I would so try next week-end.

Thanks for your understand,
    Joel

>-- Original Message --
>From: Carlos O'Donell <carlos@baldric.uwo.ca>
>To: Joel Soete <soete.joel@tiscali.be>
>Cc: parisc-linux@parisc-linux.org
>Date: Sun, 19 Oct 2003 19:10:15 -0400
>Subject: Re: [parisc-linux] evolution (1.4.5-1) 'protection id trap' [was:
>do_page_fault?]
>
>
>On Sun, Oct 19, 2003 at 07:49:08PM +0000, Joel Soete wrote:
> Hi pa,
> 
> Please apologies, I forget to mentioned an important matter:
> with 2.6.0-test-pa1 it is not anymore a do_page_fault() but:
> evolution (pid 2454): Protection id trap (code 
>7) 

Do not wrap lines like this. 
 
> YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI 
>                            PSW: 00000000000001000000000000001111 Not 
> tainted                                                       r00-03 

You should really run evol
>tion through gdb. Remember to use "handle all
nostop" and "handle all pass".

c.
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-
>inux



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Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] (Round 2) hppa glibc 2.3.2-9 available for the brave testers (Round 2)!
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Hi Carlos,

I test it on my b180 running a k-2.4-23-pre7-pa12 (hosting a basic iptable
fw and a squid proxy and it works fine now).

Thanks alot for this great job,
    Joel

>-- Original Message --
>From: Carlos O'Donell <carlos@baldric.uwo.ca>
>To: parisc-linux@lists.parisc-linux.org
>Cc: debian-hppa@lists.debian.org
>Date: Mon, 20 Oct 2003 19:36:25 -0400
>Subject: [parisc-linux] (Round 2) hppa glibc 2.3.2-9 available for the brave
>testers (Round 2)!
>
>
>debian-hppa, 
parisc-linux,

New testing deb's can be found at:

ftp://ftp.parisc-linux.org/unofficial-debs/glibc_2.3.2-9_2003-10-20/

They fix the following problems encountered by testers:

- Six argument cancellable syscalls don't crash you
> program anymore.
- Calling feraiseexcept with FE_INEXACT raises the correct exception and
  flag bits.

Cheers,
Carlos.

On Fri, Oct 17, 2003 at 02:09:12PM -0400, Carlos O'Donell wrote:
> --- CALLING ALL TESTERS! ---
> 
> glibc 2.3.2 is comp
>ete for HPPA. We've gotten rid of the following
> long standing test-suite errors (bug-iconv3, and test-fenv).
> 
> The regressions in 2.3.2 were caused by incorrect handling of the PIC
> register by the kernel, but fixed in glibc. Most cases for o
>r stack
> were handled incorrectly (stack grows up cases), but are fixed in this
> release.
> 
> ftp://ftp.parisc-linux.org/unofficial-debs/glibc_2.3.2-9_2003-10-16/
> 
> Download all the debs and install with:
> 
> dpkg -i libc6_*.deb
> (Foll
>wed by dpkg -i of the rest in any order, libc6 must install first) 
> 
> Please do this only if you consider yourself a well seasoned linux-type
> person. If that dpkg install fails for any reason you might be in
> trouble. I'm running these debs o
> all my boxes, and I've tested in a
> chroot, rebuilt our toolchain, and ran lmbench, gnome-session, nautilus,
> and abi-word.
> 
> http://www.baldric.uwo.ca/~carlos/a500-gnome-abiword.png
> 
> Thanks go out to everyone for all the moral support 
>nd fun! 
> 
> --- TEST IT AND REPORT BACK ... PLEASE! :) ---
> 
> == DISCLAIMER ===
> I do not guarantee that these debs won't cause your computer to explode
> like a pineapple grenade, showering shrapnel and fiery death on all your
> loved ones
>
> == DISCLAIMER ===

_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] fenv laid to rest, 50% done porting dbl-64 to ldbl-64, no testing yet.
Date: Tue, 21 Oct 2003 12:42:17 +0200
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To: "John David Anglin" <dave@hiauly1.hia.nrc.ca>,
	carlos@baldric.uwo.ca
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Hi Dave,


>I think we should hold off on implementing this until we get a final
>decision from HP on whether they will release their quadlib or not.

It's a long time we are awaiting this decision?

In the mean time, does it exists an URL where I can find spec?

Thanks in advance,
    Joel


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From: Jeff Bailey <jbailey@nisa.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc 2.3.2-9 for hppa - "when hell freezes
	over" release
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Hey Carlos - When submitting these upstream, will you consider adding
test cases for these failures?  feraiseexcept should certainly be tested
somewhere.  I don't know if there's a reasonable way to put in the test
for the syscalls, though.

If you don't have time, that's fine too.  I just like to encourage
people to improve testsuites whenever they can. =3D)

Tks,
Jeff Bailey

On Mon, 2003-10-20 at 19:43, Carlos O'Donell wrote:
> On Sun, Oct 19, 2003 at 07:50:05PM -0400, Carlos O'Donell wrote:
> > Will produce a new patch and new testing debs. Thanks go to all the
> > testers that turned up these problems.
>=20
> New debs fix reported problems:
> a. Six argument syscall faiulres.
> b. feraiseexcept(FE_INEXACT) doesn't raise FE_INEXACT excption.
>=20
> New patch available at:
> http://www.baldric.uwo.ca/~carlos/glibc232-hppa-full-2003-10-20.dpatch
>=20
> Follow the instructions provided in the original email:
> 1. Remove all previous hppa patches.
> 2. Add this .dpatch as the only hppa patch.
>=20
> Upload requested :) Lets make userspace churn...
>=20
> Cheers,
> Carlos.
--=20
In the United States, there isn't a government database that hasn't been
misused by the very people entrusted with keeping its information safe.
 - Bruce Schneier

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On Tue, Oct 21, 2003 at 08:03:59AM -0400, Jeff Bailey wrote:
> Hey Carlos - When submitting these upstream, will you consider adding
> test cases for these failures?  feraiseexcept should certainly be tested
> somewhere.  I don't know if there's a reasonable way to put in the test
> for the syscalls, though.

o test-fenv (Already exists)
 
> If you don't have time, that's fine too.  I just like to encourage
> people to improve testsuites whenever they can. =)

o Requires adding threaded networking code. 
	= Might be a good thing to add!

c.


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Subject: [parisc-linux] PROTECT YOUR CHILDREN From Bad Language On Your TV...crwys
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> >I think we should hold off on implementing this until we get a final
> >decision from HP on whether they will release their quadlib or not.
> 
> It's a long time we are awaiting this decision?

Yes.

> In the mean time, does it exists an URL where I can find spec?

The library implements the basic arithmetic operations for the long
double type.  I believe that you have to pay to get the spec from
ANSI or IEC (ANSI/IEEE Std 754-1985 or IEC 60559).  I don't have
a copy but possibly you might find one with google.  The HP library
isn't publicly documented but it's pretty obvious what the routines
do.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Jeff,

glibc-package/debian/patches/glibc23-hppa-Rminkernel.dpatch

Has to go back into the list of patches, since it will keep users
running their boxes with 2.4.17 or later based kernels instead of
2.4.19. Developer testing didn't catch this since we all run >2.4.19.

Please and thank you!

I'm doing the patches for the -rnptl branch right now, if I had paid
attention I would have tried harder to queue this up earlier so it could
have gone out on the recent release.

c.



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On Wed, Oct 15, 2003 at 03:10:18PM +0100, Matthew Wilcox wrote:
> This patch doesn't make suckyio serial work.  But I think it's along
> the right lines.  Anybody else want to play with this, go ahead.

I did. My resulting patch cleans up a few more things and still
needs yet more cleanup. But gets alot further now.
Problems are starting to look generic.
Current patch on ftp.p-l.o:patches/diff-2.6.0-suckyio-serial-03

I do like the static initializers much better.
And I've moved the pdc_io_reset() calls to sba driver where they belong.
I do need to add more code to:
	(1) determine when we need to reset (ie is USB active)
	(2a) unregister pdc_console (ie don't try to talk to it)
	(2b) resurrect serial config after reset (try to keep pdc_cons working)

Main problem I was seeing is a divide by zero trap
when setting up the baud rate.

> +static struct uart_port serial[] = {
> +	{
> +		.iotype		= UPIO_PORT,
> +		.line		= 0,
> +		.type		= PORT_16550A,
> +		.uartclk	= 115200,
> +		.fifosize	= 16,
> +	},

/me whacks willy's hand with a ruler...
(ok, not really called for, silly me didn't see the semi-obvious and
burned over 6 hours on Sunday+Monday night tracking this down)

Should read:
	.uartclk        = 115200*16,

uartclk/16 is used to determine the max baud rate.

        baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);

and since 9600 > 115200/16,  uart_get_baud_rate() returns 0...


My c3k now gets to:
....
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 364k freed
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
swapper (pid 1): Breakpoint (code 0)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111011100001111 Not tainted
r00-03  00000000 10339430 101f4044 00000003
r04-07  00000063 10212568 00000000 103062f0
r08-11  00000002 000f41fa 4e4da280 103d9404
r12-15  3ccbf700 1034e810 103d9010 f0400004
r16-19  f00008c4 f000017c f0000174 00000000
r20-23  00000003 00000000 101f3fec 103062f0
r24-27  000000d3 00000003 10355848 10330010
r28-31  00000060 10f0e940 4ffa8580 10104bfc
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1037c748 1037c74c
 IIR: 00000000    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 4ffa8000 CR31: 10367000
 ORIG_R28: 00000034
<2><2><0>Kernel panic: Attempted to kill init!

IOAQ: 0x1037c748 superio_init+0
GR02: 0x101f4044 superio_enable_irq+58

...
superio_init(superio_device *sio)
{
        struct pci_dev *pdev = sio->lio_pdev;
...

Mystery #1: Don't understand why sio is invalid.

Commenting out the superio_init() call from superio_enable_irq()
lets the machine boot though.

...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 364k freed
superio_enable_irq(10355848, 3)
superio_enable_irq(10355848, 3)
superio_enable_irq(10355848, 3)
superio_enable_irq(10355848, 3)
superio_enable_irq(10355848, 3)
superio_enable_irq(10355848, 3)
Adding 263144k swap on /dev/sda1.  Priority:-1 extents:1
EXT3 FS on sda3, internal journal
ip_conntrack version 2.1 (8081 buckets, 64648 max) - 300 bytes per conntrack
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
drivers/usb/core/usb.c: registered new driver usbfs
drivers/usb/core/usb.c: registered new driver hub
drivers/usb/core/usb.c: deregistering driver usbfs
drivers/usb/core/usb.c: deregistering driver hub
ip_tables: (C) 2000-2002 Netfilter core team
...
drivers/usb/core/usb.c: deregistering driver usbfs                              
drivers/usb/core/usb.c: deregistering driver hub                                
ip_tables: (C) 2000-2002 Netfilter core team                                    
eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.       
<end of output>


Mystery #2: why is superio_enable_irq() getting called so often?

Waiting patiently for login prompt...can ping the machine but
can't ssh into it (yet)...bedtime. Probably need to TOC the machine
to see what it's spinning on. Another day.

hth,
grant


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Hello,

    I know it is impolite to ask again if you don't get an answer but... I
want to know more about my scsi problems I get on my 720.

    To sum up the situation: If  I install Debian or Gentoo on a IBM 2GB
disk the kernel will freeze when I make a new ext2 or ext3 fs. If under
gentoo I select reiser FS, the kernel will freeze during the untarring of
the distribution. Since I get absolutely no errors but just a freeze it is
difficult to know anything further (even if it is really a SCSI problem,
since I get no kernel panic, but it seems obvious to me following the
repeatable situation). I'm using serial console.
    The disk is ok, I used it on a mac, tested it low-level and formatted it
with mediainit from hp-ux. The strange thing is that on a smaller 1GB disk I
had no problems (but 1gb is too small for gentoo so I never finished the
install).

One question I have, the kernel says it usees the LASI driver. But the hp
720 "cobra" has no LASI chip, but the ASP chip using the NCR 53C700
controller. Are they compatible?

Any suggestions?

-Ric



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ing.com/rm/rm.php?hilum">P<!-- bator >le<!-- thereafter >a=
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Great, thanks.  I had to run off last night or I would've spun this up
yesterday.  It seems good that the Spirits forced someone to buy me
dinner last night. =3D)

Thanks!

On Wed, 2003-10-22 at 00:32, Carlos O'Donell wrote:
> Jeff,
>=20
> glibc-package/debian/patches/glibc23-hppa-Rminkernel.dpatch
>=20
> Has to go back into the list of patches, since it will keep users
> running their boxes with 2.4.17 or later based kernels instead of
> 2.4.19. Developer testing didn't catch this since we all run >2.4.19.
>=20
> Please and thank you!
>=20
> I'm doing the patches for the -rnptl branch right now, if I had paid
> attention I would have tried harder to queue this up earlier so it could
> have gone out on the recent release.
>=20
> c.
--=20
In the United States, there isn't a government database that hasn't been
misused by the very people entrusted with keeping its information safe.
 - Bruce Schneier

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On Wed, Oct 22, 2003 at 10:30:55AM +0200, Riccardo Mottola wrote:
> Since I get absolutely no errors but just a freeze it is
> difficult to know anything further

See http://www.parisc-linux.org/faq/kernelbug-howto.html
You might find an HPMC occurred (which killed serial console)
in the "ser pim" output from PDC "BOOT_ADMIN" prompt.

> One question I have, the kernel says it usees the LASI driver. But the hp
> 720 "cobra" has no LASI chip, but the ASP chip using the NCR 53C700
> controller. Are they compatible?

Yes, mostly. Read LASI documentation to compare chips in your 720
with what's on LASI.

grant


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] glibc 2.3.2 for hppa (-rnptl)
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Jeff, Drow,

00list patch provided for -rnptl, and .dpatch url provided.

http://www.baldric.uwo.ca/~carlos/glibc232-hppa-full-nptl-2003-10-22.dpatch

Cheers,
Carlos.

---

2003-10-22  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* debian/patches/00list: Remove all hppa patches, leave 
	glibc23-hppa-Rminkernel, add glibc232-hppa-full-2003-10-22.

Index: 00list
===================================================================
RCS file: /cvs/glibc/glibc-package/debian/patches/Attic/00list,v
retrieving revision 1.1.2.8
diff -u -p -r1.1.2.8 00list
--- 00list	16 Oct 2003 18:25:48 -0000	1.1.2.8
+++ 00list	22 Oct 2003 18:40:19 -0000
@@ -27,8 +27,8 @@ locales-stuff
 #ldso-disable-hwcap - Will be re-enabled when it gets fixed
 librt-mips
 glibc23-ctype-compat
-glibc23-01-hppa-dl-machine
-glibc23-07-hppa-atomicity
+#CAO - Removed 2003-10-22 - glibc23-01-hppa-dl-machine
+#CAO - Removed 2003-10-22 - glibc23-07-hppa-atomicity
 #s390-types
 #glibc23-ia64-strncpy - ok to remove in 2.3.2., but it has string/bug-strncpy.c test code. need to contact to randolph chung.
 glibc23-hppa-Rminkernel
@@ -39,15 +39,15 @@ alpha-pic
 glibc23-cmov
 libgcc-compat-all
 locales-supported
-glibc23-hppa-compat
+#CAO - Removed 2003-10-22 - glibc23-hppa-compat
 libgcc-compat-other
-glibc23-00-hppa-pthreads 
-glibc23-hppa-malloc8
+#CAO - Removed 2003-10-22 - glibc23-00-hppa-pthreads 
+#CAO - Removed 2003-10-22 - glibc23-hppa-malloc8
 s390-tls
 hurd-enable-ldconfig
 30_glibc232-base
 #50_glibc232-mips-buildfix - no longer needed with CVS?  2003-10-07
-50_glibc23-hppa-entry
+#CAO - Removed 2003-10-22 - 50_glibc23-hppa-entry
 sparcv8-target
 #sparc32-buildfix
 50_glibc232-arm-dwarf2-buildfix
@@ -60,3 +60,5 @@ arm-ioperm
 #linuxthreads-big-stacks
 pthread-cleanup
 glibc-make-check-perms
+# CAO - Added 2003-10-22 - All the HPPA fixes
+glibc232-hppa-full-2003-10-22


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Hello,

on 10/22/03 5:43 PM, Grant Grundler at grundler@parisc-linux.org wrote:

> See http://www.parisc-linux.org/faq/kernelbug-howto.html
> You might find an HPMC occurred (which killed serial console)
> in the "ser pim" output from PDC "BOOT_ADMIN" prompt.

the how-to seems to describe exactly my problem.

I press esc at boot and enter the boot selection.

I have:

PDC ROM rev. 2.1
IODC ROM rev. 2.1 
on my 720 "cobra".

i have a preliminary menu, with A I enter in the "boot admin" menu which I
think is what is needed.

"help" displays no ser command
howewer (doing cut and paste):

BOOT_ADMIN> ser clearpim
ERROR: Unknown CONSOLE command.
BOOT_ADMIN> ser pim
ERROR: Unknown CONSOLE command.

Was that command added later? do I have an equivalent? am I in the wrong
menu? I think owners of older hardware will know better.

Regards,
    Riccardo



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Subject: [parisc-linux] US Stock Market: TRHL - Last Pick From .45 to 1.18...clara
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--F_B9ED.6_A_.53B.D
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UPSIDE INTERNATIONAL - Searching Out Stocks with Big Upside Potential...th=
at have gone unnoticed until now.


Our last pick SUQU went from 0.45 to 1.18


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 for Thoracic Surgeons recently warned that a shortage of heart surgeons l=
ooms within a few years and a survey of hospitals found pharmacists, X-ray=
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y is impacting the quality of care patients receive.



JOHNSON C0-SPONSORS LEGISLATION TO ADDRESS NURSE SHORTAGES

January 24, 2003 Washington, DC- U.S. Senator Tim Johnson (D-SD) recently =
co-sponsored the Nurse Reinvestment Act to address areas with critical nur=
se shortages in an effort to provide more opportunities to recruit and ret=
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Past decisions with respect to health care reform have been made without c=
omplete or accurate information, and this has led to critical problems in =
the system such as doctor shortages and waiting lists. 



TEXAS PUBLIC POLICY FOUNDATION
CHECK WITH YOUR DOCTOR FIRST - SEPTEMBER 03, 2003
TEXANS CAN CURE STATE'S MEDICAL CRISIS

Getting a second opinion is always a good idea, particularly when you have=
 a serious medical problem. Today, Texans are suffering from a serious lac=
k of medical care. The American Medical Association says the physician sho=
rtage has reached crisis proportions in Texas and lives are in peril.



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risis. This will equate to many millions in added revenues for True Health=
 Check out the latest financial report.



FINANCIALS

According to the latest financials, revenues are up by more than 412=
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Revenue for the three months ended July 31, 2003 went up by 412.8=
%, when compared to revenue for the three months ended July31, 2002.  The =
equipment rentals and sales segment's revenue went up by 69.8=
%, in the three months ended July 31, 2003, compared to the three months e=
nded July 31, 2002. This reflects the growth in the business over the past=
 year.










pw wna
zoigc jtclve knpxfr pr p
tfzf g

--F_B9ED.6_A_.53B.D--



From - Thu Nov 08 21:29:43 2018
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From: Mrs Serena Jones <serenajones1@rediffmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] DONATION FOR THE LORD.
Date: Thu, 23 Oct 2003 01:13:28 +0200
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From: Mrs Serena Jones

PLEASE ENDEAVOUR TO USED IT FOR THE CHILDREN OF GOD.
I am the above named person from Kuwait. I am married
to Dr. Harry Jones who worked with Kuwait embassy in Ivory Co
ast for nine years before he died in the year
2000.
We were married for eleven years without a child. He died a
fter a brief illness that lasted for only
four days. Before his death we were both born again Christia
ns.Since his death I decided not to re-
marry or get a child outside my matrimonial home which the Bi
ble is against.When my late husband was alive he deposited the
sum of$8.6Million (Eight Million six hundred thousand U.S. D
ollars) with one finance/security company in Amsterderm Hollan
d. Presently, this money is still with the Security Company.
Recently, my Doctor told me that I would not last for the next
three
months due to cancer problem. Though what disturbs me most i
s my stroke sickness. Having known my condition I decided to
donate this fund to church or better still a christian individ
ual that will utilize this money the way I am going to instruc
t here in. I want a church that will use this fund to fund chu
rches, orphanages and widows propagating the word of God and t
o ensure that the house of God is maintained. The Bible made
us to understand that Blessed is the hand that giveth.
I took this decision because I don?t have any child that wil
l inherit this money and my husband relatives are not Christi
ans and I don?t want my husband?s hard earned money to be misu
sed by unbelievers. I don?t want a situation where this money
will be used in an ungodly manner. Hence the reason for taking
this bold decision. I am not afraid of death hence I know whe
re I am going. I know that I am going to be in the bosom of th
e Lord. Exodus 14 VS 14 says that the lord will fight my case
and I shall hold my peace. I don?t need any telephone communi
cation in this regard because of my health because of the pres
ence of my husband?s relatives around me always. I don?t want
them to know about this development. With God all things are p
ossible. As soon as I receive your reply I shall give you the
contact of the Finance/Security Company in Amsterderm Holland
. I will also issue you a letter of authority that will prove
you as the original-
beneficiary of this fund. I want you and the church to always
pray for me because the lord is my shephard. My
happiness is that I lived a life of a worthy Christian. Whoe
ver that wants to serve the Lord must serve him in spirit and
truth. Please always be prayerful all through your life. Any d
elay in your reply will give me room in sourcing for a chuch
or christian individual for this same purpose. Please assure
me that you will act accordingly as I stated herein. Hoping
to hearing from you.

N.B-
PLEASE I WILL ADVICE YOU TO GIVE THE LAWYER IN CHARGE A CALL IN HOLLAND =
IMMEDIATELY, HE DOES EVERYTHING ON MY BEHALF AND HE'S VERY UNDERSTANDING AND =
I BELIEVE HE WILL LEAD YOU TO YOUR SUCCESS IN JESUS NAME, THE LAWYER'S NAME =
IS GERRY SLY HIS CONTACT PHONE NUMBER IS 00-31-620-668-086.

Remain blessed in the name of the Lord.
Yours in Christ,
Mrs Serena Jones

  
--a9077c9f-3c3a-417e-9dcf-b39e5485f476--



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From: Mrs Serena Jones <serenajones1@rediffmail.com>
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Subject: [parisc-linux] DONATION FOR THE LORD.
Date: Thu, 23 Oct 2003 03:04:03 +0200
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From: Mrs Serena Jones

PLEASE ENDEAVOUR TO USED IT FOR THE CHILDREN OF GOD.
I am the above named person from Kuwait. I am married
to Dr. Harry Jones who worked with Kuwait embassy in Ivory Co
ast for nine years before he died in the year
2000.
We were married for eleven years without a child. He died a
fter a brief illness that lasted for only
four days. Before his death we were both born again Christia
ns.Since his death I decided not to re-
marry or get a child outside my matrimonial home which the Bi
ble is against.When my late husband was alive he deposited the
sum of$8.6Million (Eight Million six hundred thousand U.S. D
ollars) with one finance/security company in Amsterderm Hollan
d. Presently, this money is still with the Security Company.
Recently, my Doctor told me that I would not last for the next
three
months due to cancer problem. Though what disturbs me most i
s my stroke sickness. Having known my condition I decided to
donate this fund to church or better still a christian individ
ual that will utilize this money the way I am going to instruc
t here in. I want a church that will use this fund to fund chu
rches, orphanages and widows propagating the word of God and t
o ensure that the house of God is maintained. The Bible made
us to understand that Blessed is the hand that giveth.
I took this decision because I don?t have any child that wil
l inherit this money and my husband relatives are not Christi
ans and I don?t want my husband?s hard earned money to be misu
sed by unbelievers. I don?t want a situation where this money
will be used in an ungodly manner. Hence the reason for taking
this bold decision. I am not afraid of death hence I know whe
re I am going. I know that I am going to be in the bosom of th
e Lord. Exodus 14 VS 14 says that the lord will fight my case
and I shall hold my peace. I don?t need any telephone communi
cation in this regard because of my health because of the pres
ence of my husband?s relatives around me always. I don?t want
them to know about this development. With God all things are p
ossible. As soon as I receive your reply I shall give you the
contact of the Finance/Security Company in Amsterderm Holland
. I will also issue you a letter of authority that will prove
you as the original-
beneficiary of this fund. I want you and the church to always
pray for me because the lord is my shephard. My
happiness is that I lived a life of a worthy Christian. Whoe
ver that wants to serve the Lord must serve him in spirit and
truth. Please always be prayerful all through your life. Any d
elay in your reply will give me room in sourcing for a chuch
or christian individual for this same purpose. Please assure
me that you will act accordingly as I stated herein. Hoping
to hearing from you.

N.B-
PLEASE I WILL ADVICE YOU TO GIVE THE LAWYER IN CHARGE A CALL IN HOLLAND =
IMMEDIATELY, HE DOES EVERYTHING ON MY BEHALF AND HE'S VERY UNDERSTANDING AND =
I BELIEVE HE WILL LEAD YOU TO YOUR SUCCESS IN JESUS NAME, THE LAWYER'S NAME =
IS GERRY SLY HIS CONTACT PHONE NUMBER IS 00-31-620-668-086.

Remain blessed in the name of the Lord.
Yours in Christ,
Mrs Serena Jones

  
--f5e0ae90-cc78-49ee-aa38-d1f79062196c--



From - Thu Nov 08 21:29:43 2018
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] teaching the kernel to do division
Date: Thu, 23 Oct 2003 00:21:57 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:19912

I was investigating why nanosleep() doesn't return the correct remaining
time with a 2.6 kernel... turns out the kernel doesn't seem to know 
how to do division properly :-(

kernel/posix-timers.c has:

                tsave->tv_sec = div_long_long_rem(left,
                                                  NSEC_PER_SEC,
                                                  &tsave->tv_nsec);

which eventually calls __div64_32() in lib/div64.c

if you test that function, you see that it does weird things. For
example, it tells me that:

28999591392 / 1000000000 = 3, remainder = 229787616

<sigh>

does anyone want to look into fixing it, and/or writing an optimized
version of that function for pa? :-) it needs to do basically this (but
be standalone)

uint32_t div64(uint64_t *n, uint32_t base)
{
        uint32_t rem;

        rem = *n % base;
        *n = *n / base;

        return rem;
}

thanks :)
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


From - Thu Nov 08 21:29:43 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [davem@redhat.com: reminder, do_gettimeofday() fix]
Date: Thu, 23 Oct 2003 12:14:30 +0100
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Not sure whether we need this or not ...

----- Forwarded message from "David S. Miller" <davem@redhat.com> -----

Date:	Thu, 23 Oct 2003 01:44:01 -0700
From:	"David S. Miller" <davem@redhat.com>
Subject: reminder, do_gettimeofday() fix
X-Mailer: Sylpheed version 0.9.7 (GTK+ 1.2.6; sparc-unknown-linux-gnu)


Just a reminder to folks that they need to check and add this
fix to their do_gettimeofday() implementation in 2.6.x if necessary.

# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
#	           ChangeSet	1.1347.1.16 -> 1.1347.1.17
#	include/linux/timex.h	1.8     -> 1.9    
#	       kernel/time.c	1.17    -> 1.18   
#	arch/i386/kernel/time.c	1.41    -> 1.42   
#	      kernel/timer.c	1.71    -> 1.72   
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 03/10/22	akpm@osdl.org	1.1347.1.17
# [PATCH] Time precision, adjtime(x) vs. gettimeofday
# 
# From: Stephen Hemminger <shemminger@osdl.org>
# 
# The following will prevent adjtime from causing time regression.  It delays
# starting the adjtime mechanism for one tick, and keeps gettimeofday inside
# the window.
# 
# Only fixes i386, but changes to other arch would be similar.
# 
# Running a simple clock test program and playing with adjtime demonstrates
# that this fixes the problem (and 2.6.0-test6 is broken).  But given the
# fragile nature of the timer code, it should go through some more testing
# before inclusion.
# --------------------------------------------
#
diff -Nru a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c
--- a/arch/i386/kernel/time.c	Thu Oct 23 00:11:17 2003
+++ b/arch/i386/kernel/time.c	Thu Oct 23 00:11:17 2003
@@ -104,6 +104,15 @@
 		lost = jiffies - wall_jiffies;
 		if (lost)
 			usec += lost * (1000000 / HZ);
+
+		/*
+		 * If time_adjust is negative then NTP is slowing the clock
+		 * so make sure not to go into next possible interval.
+		 * Better to lose some accuracy than have time go backwards..
+		 */
+		if (unlikely(time_adjust < 0) && usec > tickadj)
+			usec = tickadj;
+
 		sec = xtime.tv_sec;
 		usec += (xtime.tv_nsec / 1000);
 	} while (read_seqretry(&xtime_lock, seq));
diff -Nru a/include/linux/timex.h b/include/linux/timex.h
--- a/include/linux/timex.h	Thu Oct 23 00:11:17 2003
+++ b/include/linux/timex.h	Thu Oct 23 00:11:17 2003
@@ -302,6 +302,7 @@
 extern long time_reftime;	/* time at last adjustment (s) */
 
 extern long time_adjust;	/* The amount of adjtime left */
+extern long time_next_adjust;	/* Value for time_adjust at next tick */
 
 /* interface variables pps->timer interrupt */
 extern long pps_offset;		/* pps time offset (us) */
diff -Nru a/kernel/time.c b/kernel/time.c
--- a/kernel/time.c	Thu Oct 23 00:11:17 2003
+++ b/kernel/time.c	Thu Oct 23 00:11:17 2003
@@ -236,7 +236,7 @@
 	result = time_state;	/* mostly `TIME_OK' */
 
 	/* Save for later - semantics of adjtime is to return old value */
-	save_adjust = time_adjust;
+	save_adjust = time_next_adjust ? time_next_adjust : time_adjust;
 
 #if 0	/* STA_CLOCKERR is never set yet */
 	time_status &= ~STA_CLOCKERR;		/* reset STA_CLOCKERR */
@@ -283,7 +283,8 @@
 	    if (txc->modes & ADJ_OFFSET) {	/* values checked earlier */
 		if (txc->modes == ADJ_OFFSET_SINGLESHOT) {
 		    /* adjtime() is independent from ntp_adjtime() */
-		    time_adjust = txc->offset;
+		    if ((time_next_adjust = txc->offset) == 0)
+			 time_adjust = 0;
 		}
 		else if ( time_status & (STA_PLL | STA_PPSTIME) ) {
 		    ltemp = (time_status & (STA_PPSTIME | STA_PPSSIGNAL)) ==
diff -Nru a/kernel/timer.c b/kernel/timer.c
--- a/kernel/timer.c	Thu Oct 23 00:11:17 2003
+++ b/kernel/timer.c	Thu Oct 23 00:11:17 2003
@@ -474,6 +474,7 @@
 long time_adj;				/* tick adjust (scaled 1 / HZ)	*/
 long time_reftime;			/* time at last adjustment (s)	*/
 long time_adjust;
+long time_next_adjust;
 
 /*
  * this routine handles the overflow of the microsecond field
@@ -654,6 +655,12 @@
 	}
 	xtime.tv_nsec += delta_nsec;
 	time_interpolator_update(delta_nsec);
+
+	/* Changes by adjtime() do not take effect till next tick. */
+	if (time_next_adjust != 0) {
+		time_adjust = time_next_adjust;
+		time_next_adjust = 0;
+	}
 }
 
 /*


----- End forwarded message -----

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi pa,

I backport Randolph 2.6 works to 2.4.23-pre8-pa13 and test tmpfs which seems
to works:
# bdf
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda5              1598520    991904    525416  66% /
/dev/sda3                60485     33364     23998  59% /boot
/dev/sda6               241949    131057     98400  58% /var
/dev/sda8               120963      7296    107422   7% /home
/dev/sda9              1968384   1619384    249008  87% /usr/src
/dev/sda10             1968384   1820036     48356  98% /Sources
/dev/sda11             1968384   1295444    572948  70% /Develop
/dev/sda7               120963        14    114704   1% /tmp
tmpfs                   128048         0    128048   0% /var/tmp

# ll
total 331524
drwxrwxrwx    3 root     root         4096 Oct 14 17:53 .
drwxr-xr-x    8 root     root         4096 Oct 13 09:51 ..
[...]
-rw-r--r--    1 root     root     39424270 Oct 14 13:28 vmunix-a500.s
[...]

# vi vmunix-a500.s

jso@palx2000:~$ df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda5              1598520    991904    525416  66% /
/dev/sda3                60485     33364     23998  59% /boot
/dev/sda6               241949    131057     98400  58% /var
/dev/sda8               120963      7296    107422   7% /home
/dev/sda9              1968384   1619384    249008  87% /usr/src
/dev/sda10             1968384   1820036     48356  98% /Sources
/dev/sda11             1968384   1295444    572948  70% /Develop
/dev/sda7               120963        14    114704   1% /tmp
tmpfs                   128048     52860     75188  42% /var/tmp

# cat /proc/meminfo 
        total:    used:    free:  shared: buffers:  cached:
Mem:  262246400 86798336 175448064        0  2965504 66297856
Swap: 256892928        0 256892928
MemTotal:       256100 kB
MemFree:        171336 kB
MemShared:           0 kB
Buffers:          2896 kB
Cached:          64744 kB
SwapCached:          0 kB
Active:          52432 kB
Inactive:        19836 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:       256100 kB
LowFree:        171336 kB
SwapTotal:      250872 kB
SwapFree:       250872 kB

I just have a question: is it normal that /var/tmp is of about 256Mb when
I have 256Mb of phys mem and 250Mb (cfdisk did this when I requested 256Mb
:( ) of swap?

Thanks for info,
    Joel


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Subject: Re: [parisc-linux] TMPFS test?
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On Thu, 23 Oct 2003, Joel Soete wrote:

> Hi pa,
>
> I backport Randolph 2.6 works to 2.4.23-pre8-pa13 and test tmpfs which seems
> to works:

Well, tmpfs works for me since ... 2.4.19 ?!

> # bdf
> Filesystem           1K-blocks      Used Available Use% Mounted on
> /dev/sda5              1598520    991904    525416  66% /
> /dev/sda3                60485     33364     23998  59% /boot
> /dev/sda6               241949    131057     98400  58% /var
> /dev/sda8               120963      7296    107422   7% /home
> /dev/sda9              1968384   1619384    249008  87% /usr/src
> /dev/sda10             1968384   1820036     48356  98% /Sources
> /dev/sda11             1968384   1295444    572948  70% /Develop
> /dev/sda7               120963        14    114704   1% /tmp
> tmpfs                   128048         0    128048   0% /var/tmp

Okay, this says that you have 128MB allocated for tmpfs.
This is correct, as tmpfs uses up to half of the physical ram if you
don't specify the maximum size.
Well, it doesn't 'allocate' the whole 128MB at once of course, it
will just use as much as you put into the ram disk.

[...]

> # cat /proc/meminfo
>         total:    used:    free:  shared: buffers:  cached:
> Mem:  262246400 86798336 175448064        0  2965504 66297856
> Swap: 256892928        0 256892928
> MemTotal:       256100 kB
> MemFree:        171336 kB
> MemShared:           0 kB
> Buffers:          2896 kB
> Cached:          64744 kB
> SwapCached:          0 kB
> Active:          52432 kB
> Inactive:        19836 kB
> HighTotal:           0 kB
> HighFree:            0 kB
> LowTotal:       256100 kB
> LowFree:        171336 kB
> SwapTotal:      250872 kB
> SwapFree:       250872 kB
>
> I just have a question: is it normal that /var/tmp is of about 256Mb when

Mhh, perhaps I'm blind, but where do get the idea that tmpfs is using
256MB and not (up to) 128MB ?

I just see "MemFree: 171336 kB", and I guess that's a reasonable amount,
ie. 84764kB or almost 83MB are used. This is probably including your
52860kb for the contents in your ram disk, so it seems that all the rest
is about 31904kb or about 31MB.

> I have 256Mb of phys mem and 250Mb (cfdisk did this when I requested 256Mb
> :( ) of swap?

As mentioned before (look at /usr/src/linux/Documentation/filesystems/tmpfs.txt)
it will use UP TO half of your ram, but 'df' always shows up the max
possible size of the ram disk, aswell what is actually used.

greetings, Max


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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] Re: teaching the kernel to do division
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> does anyone want to look into fixing it, and/or writing an optimized
> version of that function for pa? :-) it needs to do basically this (but
> be standalone)

Here's one way to do it, but maybe it can be optimized a bit. Any
suggestions before i send it upstream?

randolph

Index: lib/div64.c
===================================================================
RCS file: /var/cvs/linux-2.6/lib/div64.c,v
retrieving revision 1.1
diff -u -p -r1.1 div64.c
--- lib/div64.c	29 Jul 2003 17:02:19 -0000	1.1
+++ lib/div64.c	23 Oct 2003 23:36:08 -0000
@@ -25,26 +25,28 @@
 
 uint32_t __div64_32(uint64_t *n, uint32_t base)
 {
-	uint32_t low, low2, high, rem;
+        uint64_t rem = *n;
+        uint64_t b = base;
+        uint64_t res = 0, d = 1;
 
-	low   = *n   & 0xffffffff;
-	high  = *n  >> 32;
-	rem   = high % (uint32_t)base;
-	high  = high / (uint32_t)base;
-	low2  = low >> 16;
-	low2 += rem << 16;
-	rem   = low2 % (uint32_t)base;
-	low2  = low2 / (uint32_t)base;
-	low   = low  & 0xffff;
-	low  += rem << 16;
-	rem   = low  % (uint32_t)base;
-	low   = low  / (uint32_t)base;
+        if (b > 0) {
+                while (b < rem) {
+                        b <<= 1;
+                        d <<= 1;
+                }
+        }
+        
+        do {
+                if (rem >= b) {
+                        rem -= b;
+                        res += d;
+                }
+                b >>= 1;
+                d >>= 1;
+        } while (d);
 
-	*n = low +
-		((uint64_t)low2 << 16) +
-		((uint64_t)high << 32);

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Դϴ


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Hello Max,
>>
>> I backport Randolph 2.6 works to 2.4.23-pre8-pa13 and test tmpfs which
seems
>> to works:
>
>Well, tmpfs works for me since ... 2.4.19 ?!
>
Sorry never heard before (the first time in a Randolph patch :) )

>> # bdf
[...]
>> tmpfs                   128048         0    128048   0% /var/tmp
>
>Okay, this says that you have 128MB allocated for tmpfs.
>This is correct, as tmpfs uses up to half of the physical ram if you
>don't specify the maximum size.
>Well, it doesn't 'allocate' the whole 128MB at once of course, it
>will just use as much as you put into the ram disk.

Clear

>[...]
>>
>> # cat /proc/meminfo
>>         total:    used:    free:  shared: buffers:  cached:
>> Mem:  26224640
>> 86798336 175448064        0  2965504 66297856
>> Swap: 256892928        0 256892928
>> MemTotal:       256100 kB
>> MemFree:        171336 kB
>> MemShared:           0 kB
>> Buffers:          2896 kB
>> Cached:          64744 kB
>> SwapCached:          0 kB
>> Active:          52432 kB
>> Inactive:        19836 kB
>> HighTotal:           0 kB
>> HighFree:            0 kB
>> LowTotal:       256100 kB
>> LowFree:        171336 kB
>> SwapTotal:      250872 kB
>> SwapFree:       250872 kB
>>
>> I just have a question: is it normal that /var/tmp is of about 256Mb when
>
>Mhh, perhaps I'm blind, but where do get the idea that tmpfs is using
>256MB and not (up to) 128MB ?

It comes from another commercial *nix based system which (always confusing
me and) uses /tmp to manage the physical memory + overall swap. [What is
confusing me is its global size (not only the available size as usual with
other fs) which can change as change the usage of swap?]
 
[..]
>As mentioned before (look at usr/src/linux/Documentation/filesystems/tmpfs.txt)

That is where I find how to use it but, my bad, I do not read all details.

Thanks for your help and patience,
    Joel


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From: Joel Soete <soete.joel@tiscali.be>
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Hi Rnadolph and all,

I reach to figure out what your pb is.
This new algo is Ok and the previous formula was definitely wrong (even 
in 2.4 :( ). So it could be interesting to fix it also.

For this I start from basic math:
	Dividend = divisor * quotient + reminder
ie	D = d * q + r (D, d, q, r: being integers)

I can also split D in two 32bits words and write
	D = D1 * 2^32 + D0

But I always have only one equation with two unknown var (q and r).

Is somebody knows where can I find the right solution?
(or should I find it back in objdump from :
uint32_t div64(uint64_t *n, uint32_t base)
{
         uint32_t rem;

         rem = *n % base;
         *n = *n / base;

         return rem;
})

Thanks in advance,
	Joel


Randolph Chung wrote:
>>does anyone want to look into fixing it, and/or writing an optimized
>>version of that function for pa? :-) it needs to do basically this (but
>>be standalone)
> 
> 
> Here's one way to do it, but maybe it can be optimized a bit. Any
> suggestions before i send it upstream?
> 
> randolph
> 
> Index: lib/div64.c
> ===================================================================
> RCS file: /var/cvs/linux-2.6/lib/div64.c,v
> retrieving revision 1.1
> diff -u -p -r1.1 div64.c
> --- lib/div64.c	29 Jul 2003 17:02:19 -0000	1.1
> +++ lib/div64.c	23 Oct 2003 23:36:08 -0000
> @@ -25,26 +25,28 @@
>  
>  uint32_t __div64_32(uint64_t *n, uint32_t base)
>  {
> -	uint32_t low, low2, high, rem;
> +        uint64_t rem = *n;
> +        uint64_t b = base;
> +        uint64_t res = 0, d = 1;
>  
> -	low   = *n   & 0xffffffff;
> -	high  = *n  >> 32;
> -	rem   = high % (uint32_t)base;
> -	high  = high / (uint32_t)base;
> -	low2  = low >> 16;
> -	low2 += rem << 16;
> -	rem   = low2 % (uint32_t)base;
> -	low2  = low2 / (uint32_t)base;
> -	low   = low  & 0xffff;
> -	low  += rem << 16;
> -	rem   = low  % (uint32_t)base;
> -	low   = low  / (uint32_t)base;
> +        if (b > 0) {
> +                while (b < rem) {
> +                        b <<= 1;
> +                        d <<= 1;
> +                }
> +        }
> +        
> +        do {
> +                if (rem >= b) {
> +                        rem -= b;
> +                        res += d;
> +                }
> +                b >>= 1;
> +                d >>= 1;
> +        } while (d);
>  
> -	*n = low +
> -		((uint64_t)low2 << 16) +
> -		((uint64_t)high << 32);
> -
> -	return rem;
> +        *n = res;
> +        return rem;
>  }
>  
>  EXPORT_SYMBOL(__div64_32);
> 



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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Re: teaching the kernel to do division
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Hi all,

this test case would explaining better (i hope at least) than long 
sentences what i mean:
#include <linux/types.h>
#include <stdio.h>
#include <limits.h>

/*
/* Algo 1: the goal */
uint32_t div64(uint64_t *n, uint32_t base)
{
         uint32_t rem;

         rem = *n % base;
         *n = *n / base;

         return rem;
}

/* Algo 2: original 2.6 */
uint32_t div64(uint64_t *n, uint32_t base)
{
         uint32_t low, low2, high, rem;

         low   = *n   & 0xffffffff;
         high  = *n  >> 32;
         rem   = high % (uint32_t)base;
         high  = high / (uint32_t)base;
         low2  = low >> 16;
         low2 += rem << 16;
         rem   = low2 % (uint32_t)base;
         low2  = low2 / (uint32_t)base;
         low   = low  & 0xffff;
         low  += rem << 16;
         rem   = low  % (uint32_t)base;
         low   = low  / (uint32_t)base;

         *n = low +
                 ((uint64_t)low2 << 16) +
                 ((uint64_t)high << 32);

         return rem;
}

/* Algo 3: 2.4 method  */
#define div64(n,base)                                                  \
({                                                                     \
         unsigned long __low, __low2, __high, __rem;                    \
         __low  = (n) & 0xffffffff;                                     \
         __high = (n) >> 32;                                            \
         if (__high) {                                                  \
                 __rem   = __high % (unsigned long)base;                \
                 __high  = __high / (unsigned long)base;                \
                 __low2  = __low >> 16;                                 \
                 __low2 += __rem << 16;                                 \
                 __rem   = __low2 % (unsigned long)base;                \
                 __low2  = __low2 / (unsigned long)base;                \
                 __low   = __low & 0xffff;                              \
                 __low  += __rem << 16;                                 \
                 __rem   = __low  % (unsigned long)base;                \
                 __low   = __low  / (unsigned long)base;                \
                 n = __low  + ((long long)__low2 << 16) +               \
                         ((long long) __high << 32);                    \
         } else {                                                       \
                 __rem = __low % (unsigned long)base;                   \
                 n = (__low / (unsigned long)base);                     \
         }                                                              \
         __rem;                                                         \
})
  */

  /* Algo 4: the Randolph patch OK*/
uint32_t div64(uint64_t *n, uint32_t base)
{
         uint64_t rem = *n;
         uint64_t b = base;
         uint64_t res = 0, d = 1;

         if (b > 0) {
                 while (b < rem) {
                         b <<= 1;
                         d <<= 1;
                 }
         }

         do {
                 if (rem >= b) {
                         rem -= b;
                         res += d;
                 }
                 b >>= 1;
                 d >>= 1;
         } while (d);

         *n = res;
         return rem;
}

main()
{
         uint32_t Rem;
         uint64_t Num;

         Num=(uint64_t) 28999591392ULL;

/*
         printf("Length of Rem: %d\n", sizeof(Rem));
         printf("Length of Num: %d\n", sizeof(Num));
  */
         printf ("Num = %#018Lx (%#lld)\n", Num, Num);
         Rem = div64(&Num, 1000000000UL);

         printf ("Rem = %#012x (%#ld)\n", Rem, Rem);
}

With corresponding results:
         Algo 1 (Ok)
Num = 0x00000006c082a5e0 (28999591392)
Rem = 0x003b948de0 (999591392)

         Algo 2 (Ko)
Num = 0x00000006c082a5e0 (28999591392)
Rem = 0x000db247e0 (229787616)

         Algo 3 (Ko)
Num = 0x00000006c082a5e0 (28999591392)
Rem = 0x000db247e0 (229787616)

         Algo 4 (Ok)
Num = 0x00000006c082a5e0 (28999591392)
Rem = 0x003b948de0 (999591392)

hth,
	Joel

PS: All seems well presented in my mozilla window and hope that will stay ;)

Joel Soete wrote:
> Hi Rnadolph and all,
> 
> I reach to figure out what your pb is.
> This new algo is Ok and the previous formula was definitely wrong (even 
> in 2.4 :( ). So it could be interesting to fix it also.
> 
> For this I start from basic math:
>     Dividend = divisor * quotient + reminder
> ie    D = d * q + r (D, d, q, r: being integers)
> 
> I can also split D in two 32bits words and write
>     D = D1 * 2^32 + D0
> 
> But I always have only one equation with two unknown var (q and r).
> 
> Is somebody knows where can I find the right solution?
> (or should I find it back in objdump from :
> uint32_t div64(uint64_t *n, uint32_t base)
> {
>         uint32_t rem;
> 
>         rem = *n % base;
>         *n = *n / base;
> 
>         return rem;
> })
> 
> Thanks in advance,
>     Joel
> 
> 
> Randolph Chung wrote:
> 
>>> does anyone want to look into fixing it, and/or writing an optimized
>>> version of that function for pa? :-) it needs to do basically this (but
>>> be standalone)
>>
>>
>>
>> Here's one way to do it, but maybe it can be optimized a bit. Any
>> suggestions before i send it upstream?
>>
>> randolph
>>
>> Index: lib/div64.c
>> ===================================================================
>> RCS file: /var/cvs/linux-2.6/lib/div64.c,v
>> retrieving revision 1.1
>> diff -u -p -r1.1 div64.c
>> --- lib/div64.c    29 Jul 2003 17:02:19 -0000    1.1
>> +++ lib/div64.c    23 Oct 2003 23:36:08 -0000
>> @@ -25,26 +25,28 @@
>>  
>>  uint32_t __div64_32(uint64_t *n, uint32_t base)
>>  {
>> -    uint32_t low, low2, high, rem;
>> +        uint64_t rem = *n;
>> +        uint64_t b = base;
>> +        uint64_t res = 0, d = 1;
>>  
>> -    low   = *n   & 0xffffffff;
>> -    high  = *n  >> 32;
>> -    rem   = high % (uint32_t)base;
>> -    high  = high / (uint32_t)base;
>> -    low2  = low >> 16;
>> -    low2 += rem << 16;
>> -    rem   = low2 % (uint32_t)base;
>> -    low2  = low2 / (uint32_t)base;
>> -    low   = low  & 0xffff;
>> -    low  += rem << 16;
>> -    rem   = low  % (uint32_t)base;
>> -    low   = low  / (uint32_t)base;
>> +        if (b > 0) {
>> +                while (b < rem) {
>> +                        b <<= 1;
>> +                        d <<= 1;
>> +                }
>> +        }
>> +        +        do {
>> +                if (rem >= b) {
>> +                        rem -= b;
>> +                        res += d;
>> +                }
>> +                b >>= 1;
>> +                d >>= 1;
>> +        } while (d);
>>  
>> -    *n = low +
>> -        ((uint64_t)low2 << 16) +
>> -        ((uint64_t)high << 32);
>> -
>> -    return rem;
>> +        *n = res;
>> +        return rem;
>>  }
>>  
>>  EXPORT_SYMBOL(__div64_32);
>>
> 
> 



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From: "Art Haas" <ahaas@airmail.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] C99 cleanup in kernel/sysctl.c
Date: Sat, 25 Oct 2003 10:51:07 -0500
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Hi.

Looking at the file kernel/sysctl.c I saw this HP-PA specfic block of
code. Here's an untested patch to format the code with C99 named
initializers.

Art Haas

===== kernel/sysctl.c 1.55 vs edited =====
--- 1.55/kernel/sysctl.c	Thu Oct  2 02:12:07 2003
+++ edited/kernel/sysctl.c	Sat Oct 25 10:45:03 2003
@@ -336,10 +336,22 @@
 	},
 #endif
 #ifdef __hppa__
-	{KERN_HPPA_PWRSW, "soft-power", &pwrsw_enabled, sizeof (int),
-	 0644, NULL, &proc_dointvec},
-	{KERN_HPPA_UNALIGNED, "unaligned-trap", &unaligned_enabled, sizeof (int),
-	 0644, NULL, &proc_dointvec},
+	{
+		.ctl_name	= KERN_HPPA_PWRSW,
+		.procname	= "soft-power",
+		.data		= &pwrsw_enabled,
+		.maxlen		= sizeof (int),
+	 	.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= KERN_HPPA_UNALIGNED,
+		.procname	= "unaligned-trap",
+		.data		= &unaligned_enabled,
+		.maxlen		= sizeof (int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
 #endif
 #if defined(CONFIG_PPC32) && defined(CONFIG_6xx)
 	{
-- 
Man once surrendering his reason, has no remaining guard against absurdities
the most monstrous, and like a ship without rudder, is the sport of every wind.

-Thomas Jefferson to James Smith, 1822


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> Looking at the file kernel/sysctl.c I saw this HP-PA specfic block of
> code. Here's an untested patch to format the code with C99 named
> initializers.

hm.. this is already in our 2.6 tree, except the old version was there
also, so we have two copies of the same sysctl.. oops :)

i've removed the redundant ones.

thanks
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> Is somebody knows where can I find the right solution?

think about how you would do binary long division by hand. the algorithm
is exactly the same.

the more interesting question is how can we implement a more efficient
one for hppa. $$divU in libgcc.a is almost what we want, except i only
see a 32-bit version.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> Our signal handling code was not handling ERESTART_RESTARTBLOCK
> correctly. as far as I can tell, the semantics of this is that if a
> syscall function returns with that error code, we are supposed to
> restart the syscall, but with a new syscall number
> (__NR_restart_syscall -- which we don't define at the moment)

ok, answering another one of my own emails :-)

here's a patch that implements the required logic. probably can be
improved some.... comments appreciated.

About __NR_restart_syscall, some archs use syscall #0 (unused for pa
afaict), others define a new syscall number. Any preferences? If it's
zero then i think i will remove the reassemble_14 logic.

thx
randolph

Index: arch/parisc/kernel/signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/signal.c,v
retrieving revision 1.11
diff -u -p -r1.11 signal.c
--- arch/parisc/kernel/signal.c	24 Sep 2003 17:54:31 -0000	1.11
+++ arch/parisc/kernel/signal.c	26 Oct 2003 07:17:08 -0000
@@ -451,6 +451,12 @@ handle_signal(unsigned long sig, siginfo
 	return 1;
 }
 
+static inline int reassemble_14(int as14)
+{
+	return (((as14 & 0x1fff) << 1) |
+		((as14 & 0x2000) >> 13));
+}
+
 /*
  * Note that 'init' is a special process: it doesn't get signals it doesn't
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
@@ -530,10 +537,48 @@ do_signal(sigset_t *oldset, struct pt_re
 	/* Did we come from a system call? */
 	if (in_syscall) {
 		/* Restart the system call - no handlers present */
-		if (regs->gr[28] == -ERESTART_RESTARTBLOCK ||
-		    regs->gr[28] == -ERESTARTNOHAND ||
-		    regs->gr[28] == -ERESTARTSYS ||
-		    regs->gr[28] == -ERESTARTNOINTR) {
+		if (regs->gr[28] == -ERESTART_RESTARTBLOCK) {
+			unsigned int *usp = (unsigned int *)regs->gr[30];
+
+			/* Setup a trampoline to restart the syscall
+			 * with __NR_restart_syscall
+			 *
+			 *  0: ble 0x100(%%sr2, %%r0)
+			 *  4: ldi __NR_restart_syscall, %r20
+			 *  8: b,l .+8, %r21
+			 * 12: depi 0,31,2,%r21
+			 * 16: ldw 16(%r21), %rp
+			 * 20: bv %r0(%rp)
+			 * 24: ldo -64(%sp), %sp
+			 * 28: nop
+			 * 32: <return address> (2 slots for 64-bit)
+			 */
+			put_user(0xe4008200, &usp[0]);
+			put_user(0x34140000 | reassemble_14(__NR_restart_syscall), &usp[1]);
+			put_user(0xeaa00000, &usp[2]);
+  			put_user(0xd6a01c1e, &usp[3]);
+#ifndef __LP64__
+			put_user(0x4ab40020, &usp[4]);
+#else
+			put_user(0x52b40020, &usp[4]);
+#endif
+			put_user(0xea80c000, &usp[5]);
+			put_user(0x37de3f81, &usp[6]);
+			put_user(0x08000240, &usp[7]);
+			put_user(regs->gr[31] & ~3, &usp[8]); 
+
+			flush_user_dcache_range((unsigned long)usp,
+				                (unsigned long)(usp + 10));
+			flush_user_icache_range((unsigned long)usp,
+				                (unsigned long)(usp + 10));
+
+			regs->gr[31] = regs->gr[30];
+			regs->gr[30] += 64;
+			/* Preserve original r28. */
+			regs->gr[28] = regs->orig_r28;
+		} else if (regs->gr[28] == -ERESTARTNOHAND ||
+		           regs->gr[28] == -ERESTARTSYS ||
+		           regs->gr[28] == -ERESTARTNOINTR) {
 			/* Hooray for delayed branching.  We don't
                            have to restore %r20 (the system call
                            number) because it gets loaded in the delay


-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> +			 * 16: ldw 16(%r21), %rp
> +			 * 20: bv %r0(%rp)

btw, this comment is wrong, it's actually
> +			 * 16: ldw 16(%r21), %r20
> +			 * 20: bv %r0(%r20)

trashing rp in a syscall is a bad idea ;-)

thanks
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi all,

I try to apt-get install gcc-hppa64 (having added <deb 
http://ftp.parisc-linux.org/ unofficial-debs/> entry in my sources.list)
on my c110 (a fresh debian/unstable install) but it fails with following 
message:
hpalin:/Debian-apt/Debian4hppa# apt-get install gcc-hppa64
Reading Package Lists... Done
Building Dependency Tree... Done
The following NEW packages will be installed:
   gcc-hppa64
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 16.1MB of archives.
After unpacking 39.0MB of additional disk space will be used.
Err http://ftp.parisc-linux.org unofficial-debs/ gcc-hppa64 1:3.2.3-0.1
   404 Not Found
Failed to fetch 
http://ftp.parisc-linux.org/./gcc-hppa64_3.2.3-0.1_hppa.deb  404 Not Found
E: Unable to fetch some archives, maybe run apt-get update or try with 
--fix-missing?

What do I wrong?
And gcc-hppa64_3.2.3-0.1_hppa.deb isn't anymore in  unofficial-debs, 
what do i miss?

Thanks in advance for help,
	Joel



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Subject: Re: [parisc-linux] gcc-hppa64 failled to install on my c110
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> What do I wrong?
> And gcc-hppa64_3.2.3-0.1_hppa.deb isn't anymore in  unofficial-debs, 
> what do i miss?

hm.. i  guess nobody regenerated the Packages.gz file after the deb got
removed.... there were some problems with that gcc deb so i removed it
quite some time ago.

i've been testing gcc-3.3 based compilers for hppa64-linux, but they
don't seem to build working kernels. still need to investigate.

thanks
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] C110 builtin nic slow?
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Hi all,

Here are the devices found on my c110 box:
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0x7, 0xb
2. SkyHawk 100/120 FW-SCSI (4) at 0xf3f8c000 [8/12], versions 0x1f, 0x0, 
0x89
3. Raven T' Core BA (11) at 0xffd00000 [8/16], versions 0x32, 0x0, 0x81, 
  additional addresses: 0xffd0c000 0xffc00000
4. Raven T' Core Centronics (10) at 0xffd02000 [8/16/0], versions 0x32, 
0x0, 0x74,  additional addresses: 0xffd01000 0xffd03000
5. Raven T' Audio (10) at 0xffd04000 [8/16/1], versions 0x32, 0x0, 0x7b
6. Raven T' Lasi Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x32, 
0x0, 0x8c
7. Raven T' Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x32, 0x0, 0x82
8. Raven T' Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x32, 
0x0, 0x8a
9. Raven T' Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions 0x32, 
0x0, 0x84
10. Raven T' Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions 0x32, 
0x0, 0x84
11. Raven T' Core PC Floppy (10) at 0xffd0a000 [8/16/10], versions 0x32, 
0x0, 0x83
12. Raven T' Wax BA (11) at 0xffe00000 [8/20], versions 0x1e, 0x0, 0x8e, 
  additional addresses: 0xffe03000 0xffe06000
13. Raven T' Wax HIL (10) at 0xffe01000 [8/20/1], versions 0x1e, 0x0, 0x73
14. Raven T' Wax RS-232 (10) at 0xffe02000 [8/20/2], versions 0x1e, 0x0, 
0x8c
15. Raven T' Wax EISA BA (11) at 0xfc000000 [8/20/5], versions 0x1e, 
0x0, 0x90,  additional addresses: 0xffc88400 0xf4000000
16. U2-IOA BC GSC+ Port (7) at 0xf3fbf000 [8/63], versions 0x501, 0x1, 
0xc,  additional addresses: 0xf3f80000
17. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0x7, 0xb
18. Raven T' GSC Core Graphics (10) at 0xf4000000 [10/16], versions 
0x32, 0x0, 0x85,  additional addresses: 0xf0069000
19. U2-IOA BC GSC+ Port (7) at 0xf3fff000 [10/63], versions 0x501, 0x1, 0xc
20. Raven 120 T' (0) at 0xfffa0000 [32], versions 0x58e, 0x0, 0x4
21. Memory (1) at 0xfffb1000 [49], versions 0x49, 0x0, 0x9
CPU(s): 1 x PA7200 (PCX-T') at 120.000000 MHz

And, at the office, I use to obtain around nice 1Mb/s when I do such 
rsync or ftp between my b180 connected via a hub.

But here at home, I connect the builtin nic of my c110 with a 
cross-cable to my pc (proxy) and I just obtain 50kb/s (whatever the 
kernel I boot 2.4 or 2.6) (ie 20 time less then with a another pc 
connected in place of the c110). Is it possible to improve the 
performance of this builtin nic?

Thanks in advance,
	Joel



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On Sun, Oct 26, 2003 at 12:37:51AM -0700, Randolph Chung wrote:
> here's a patch that implements the required logic. probably can be
> improved some.... comments appreciated.
> 
> About __NR_restart_syscall, some archs use syscall #0 (unused for pa
> afaict), others define a new syscall number. Any preferences? If it's
> zero then i think i will remove the reassemble_14 logic.

I don't see why #0 can't be used here. Then again, why can't you code
the syscall number directly into the hex? Are you expecting it to
change? :)

> +		if (regs->gr[28] == -ERESTART_RESTARTBLOCK) {
> +			unsigned int *usp = (unsigned int *)regs->gr[30];
> +
> +			/* Setup a trampoline to restart the syscall
> +			 * with __NR_restart_syscall
> +			 *
> +			 *  0: ble 0x100(%%sr2, %%r0)
> +			 *  4: ldi __NR_restart_syscall, %r20
> +			 *  8: b,l .+8, %r21
> +			 * 12: depi 0,31,2,%r21
> +			 * 16: ldw 16(%r21), %rp
> +			 * 20: bv %r0(%rp)
> +			 * 24: ldo -64(%sp), %sp

Adding stack here can be detremental to the userspace program. It's not
expecting you to have a stack, and it expects the syscall to live within 
its calling frame. When we setup the signal return trampoline we don't
mess with the stack either :) Though this context is different.

> +			 * 28: nop
> +			 * 32: <return address> (2 slots for 64-bit)
> +			 */

c.



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On Sun, Oct 26, 2003 at 04:49:04PM +0000, Joel Soete wrote:
> 8. Raven T' Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x32, 
> 0x0, 0x8a

This is a 10Mb link.

> And, at the office, I use to obtain around nice 1Mb/s when I do such 
> rsync or ftp between my b180 connected via a hub.

Which protocol?

> But here at home, I connect the builtin nic of my c110 with a 
> cross-cable to my pc (proxy) and I just obtain 50kb/s (whatever the 
> kernel I boot 2.4 or 2.6) (ie 20 time less then with a another pc 
> connected in place of the c110). Is it possible to improve the 
> performance of this builtin nic?

Earlier this year I exchanged email with someone on linux-ia64 list with
a similar sounding problem. They were trying to NFS mount some exported
by the ia64-linux server but perf was ~80KB/s vs 50MB/s (1000BT) across
the same link to another ia64-linux box. We never found the root cause
since netperf demonstrated the UDP throughput was > 50MB/s (expected)
in the same config. I could only guess it was something in the NFS
stack having to do with 16K pages.

But thinking about this more, I'm wondering if some kernel code is
accessing misaligned data someplace in the networking stack.
The arguments I've heard is this is expected behavior.

Joel,
1) Can you verify dmesg has no misaligned data access reports?
2) Can you clarify how you are measuring performance?
   (ie which protocols and which tools?)
3) Can you setup/run netperf or httperf with the PC to verify whatever
   protocol you are using basically works?

grant


From - Thu Nov 08 21:29:45 2018
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Subject: Re: [parisc-linux] Re: how to handle ERESTART_RESTARTBLOCK ?
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> I don't see why #0 can't be used here. Then again, why can't you code
> the syscall number directly into the hex? Are you expecting it to
> change? :)

no, i can (will) just encode it into the hex.... 

> Adding stack here can be detremental to the userspace program. It's not
> expecting you to have a stack, and it expects the syscall to live within 
> its calling frame. When we setup the signal return trampoline we don't
> mess with the stack either :) Though this context is different.

userspace should not see this stack...

let's say your syscall sequence looks like this:

[...]
ble 0x100(%sr2, %r0)    /* call nanosleep */
ldi 0xa2,%r20
ldi -1000,r1
[...]

normally when you return from the kernel, you return at the second ldi
insn. In this case, you jump to a trampoline that happens to sit on your
stack, so the insn sequence becomes essentially

[...]
ble 0x100(%sr2, %r0)    /* call nanosleep */
ldi 0xa2,%r20
    ldo 64(%sp),%sp
    ble 0x100(%sr2, %r0)
    ldi 0,%r20
    b,l .+8, %r21
    [...]
    bv %r0(%r20)
    ldo -64(%sp),%sp
ldi -1000,r1
[...]

(indented part added by the kernel)

so it should be invisible to the syscall wrapper/application.

or am i missing something? :-)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: how to handle ERESTART_RESTARTBLOCK ?
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> [...]
> ble 0x100(%sr2, %r0)    /* call nanosleep */
> ldi 0xa2,%r20
>     ldo 64(%sp),%sp
>     ble 0x100(%sr2, %r0)
>     ldi 0,%r20
>     b,l .+8, %r21
>     [...]
>     bv %r0(%r20)
>     ldo -64(%sp),%sp
> ldi -1000,r1
> [...]
> 
> (indented part added by the kernel)
> 
> so it should be invisible to the syscall wrapper/application.
> 
> or am i missing something? :-)

You probably have to be careful here with respect to signals, etc.
Technically, the frame marker is supposed to move when a dynamic
stack allocation is done.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C110 builtin nic slow?
Date: Sun, 26 Oct 2003 20:40:52 +0000
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Hi Grant,

Grant Grundler wrote:
> On Sun, Oct 26, 2003 at 04:49:04PM +0000, Joel Soete wrote:
> 
>>8. Raven T' Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x32, 
>>0x0, 0x8a
> 
> 
> This is a 10Mb link.
> 
Yes ;)
> 
>>And, at the office, I use to obtain around nice 1Mb/s when I do such 
>>rsync or ftp between my b180 connected via a hub.
> 
> 
> Which protocol?
> 

ftp (ncftp), rsync, scp

> 
>>But here at home, I connect the builtin nic of my c110 with a 
>>cross-cable to my pc (proxy) and I just obtain 50kb/s (whatever the 
>>kernel I boot 2.4 or 2.6) (ie 20 time less then with a another pc 
>>connected in place of the c110). Is it possible to improve the 
>>performance of this builtin nic?
> 
> 
> Earlier this year I exchanged email with someone on linux-ia64 list with
> a similar sounding problem. They were trying to NFS mount some exported
> by the ia64-linux server but perf was ~80KB/s vs 50MB/s (1000BT) across
> the same link to another ia64-linux box. We never found the root cause
> since netperf demonstrated the UDP throughput was > 50MB/s (expected)
> in the same config. I could only guess it was something in the NFS
> stack having to do with 16K pages.
> 

Well all kernel tested since now (2.4 or 2.6) were well configured to 
support NFS (even if exports file is empty). I can try to remove this 
support?

> But thinking about this more, I'm wondering if some kernel code is
> accessing misaligned data someplace in the networking stack.
> The arguments I've heard is this is expected behavior.
> 
> Joel,
> 1) Can you verify dmesg has no misaligned data access reports?

Unfortunately no such a messages :(

> 2) Can you clarify how you are measuring performance?
>    (ie which protocols and which tools?)

what ever the protocol I use (ftp, rsync, scp) they report their own 
stat which are very low and correspond to the results of gkrellm (iptraf 
seems to lock the trafic).

hm another strange thing: I just compressed the my last kernel 2.4 
sources (about 30Mb) and on my pc I get it with scp from the c110: scp 
and gkrellm showing a rate of about 150Kb/s. Then remove the file on the 
c110 and on this i grab the same file with scp (also) and this time scp 
amd gkrellm showing  togehter a rate a about 50Kb/s. That is get now put 
show same results (i mean on pc put to c110: rate about 50Kb/s; on c110 
put to pc: rate about 150Kb/s).

That say. I also try to re-do the same test with ncftp which seems to 
show the same results excepted that 'put' from c110 to pc 'stail' after 
only one hundred Kb (and I installed the same ftp server on each ie:
ii  ftpd           0.17-16        FTP server
ii  tftpd          0.17-10        Internet trivial file transfer 
protocol serv).



> 3) Can you setup/run netperf or httperf with the PC to verify whatever
>    protocol you are using basically works?

I try to install the non-free (?) dpkg on my pc but:
sid:/home/jso/work # netperf -t UDP_STREAM
UDP UNIDIRECTIONAL SEND TEST to localhost
udp_send: data send error: Message too long
sid:/home/jso/work # netperf -t UDP_STREAM -f m
UDP UNIDIRECTIONAL SEND TEST to localhost
udp_send: data send error: Message too long
sid:/home/jso/work # netperf -t TCP_RR
TCP REQUEST/RESPONSE TEST to localhost
Local /Remote
Socket Size   Request  Resp.   Elapsed  Trans.
Send   Recv   Size     Size    Time     Rate
bytes  Bytes  bytes    bytes   secs.    per sec

16384  87380  1        1       9.99     15980.06
16384  87380
sid:/home/jso/work # netperf -t UDP_RR
UDP REQUEST/RESPONSE TEST to localhost
Local /Remote
Socket Size   Request  Resp.   Elapsed  Trans.
Send   Recv   Size     Size    Time     Rate
bytes  Bytes  bytes    bytes   secs.    per sec

65535  65535  1        1       10.00    27145.26
65535  65535

hmm may be should I try to rebuild the very last src (from hp).
More over the pkg is not available for parisc but I trust it would just 
be rebuild for this platform?

(i just haven't enough time to do it right now, sorry)

The few I can let iptraf running it didn't show's me any udp trafic :(
  Statistics for eth1
Total:     5350    4077724        2411     459794        2939    3617930
IP:        5350    4002824        2411     426040        2939    3576784
TCP:       5350    4002824        2411     426040        2939    3576784
UDP:          0          0           0          0           0          0
ICMP:         0          0           0          0           0          0
Other IP:     0          0           0          0           0          0
Non-IP:       0          0           0          0           0          0


Thanks for help,
	Joel



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Subject: Re: [parisc-linux] Re: how to handle ERESTART_RESTARTBLOCK ?
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> You probably have to be careful here with respect to signals, etc.
> Technically, the frame marker is supposed to move when a dynamic
> stack allocation is done.

ok, how about if i do it like this?


-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] Re: how to handle ERESTART_RESTARTBLOCK ?
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In reference to a message from Randolph Chung, dated Oct 26:
> > You probably have to be careful here with respect to signals, etc.
> > Technically, the frame marker is supposed to move when a dynamic
> > stack allocation is done.
> 
> ok, how about if i do it like this?

hrm, oops, that's the magical disappearance act... :)

Index: arch/parisc/kernel/signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/signal.c,v
retrieving revision 1.11
diff -u -p -r1.11 signal.c
--- arch/parisc/kernel/signal.c	24 Sep 2003 17:54:31 -0000	1.11
+++ arch/parisc/kernel/signal.c	26 Oct 2003 20:53:14 -0000
@@ -530,10 +531,68 @@ do_signal(sigset_t *oldset, struct pt_re
 	/* Did we come from a system call? */
 	if (in_syscall) {
 		/* Restart the system call - no handlers present */
-		if (regs->gr[28] == -ERESTART_RESTARTBLOCK ||
-		    regs->gr[28] == -ERESTARTNOHAND ||
-		    regs->gr[28] == -ERESTARTSYS ||
-		    regs->gr[28] == -ERESTARTNOINTR) {
+		if (regs->gr[28] == -ERESTART_RESTARTBLOCK) {
+			unsigned int *usp = (unsigned int *)regs->gr[30];
+
+			/* Setup a trampoline to restart the syscall
+			 * with __NR_restart_syscall
+			 */
+#ifndef __LP64__
+			/* 32-bit version:
+			 *  0: <frame marker>
+			 *  4: <return address>
+			 *  8: ble 0x100(%%sr2, %%r0)
+			 * 12: ldi __NR_restart_syscall, %r20
+			 * 16: ldw -60(%sp), %r20
+			 * 20: bv %r0(%r20)
+			 * 24: ldwm -64(%sp), %r3
+			 */
+			put_user(regs->gr[3], &usp[0]); 
+			put_user(regs->gr[31], &usp[1]); 
+			put_user(0xe4008200, &usp[2]);
+			put_user(0x34140000, &usp[3]);
+			put_user(0x4bd43f89, &usp[4]);
+			put_user(0xea80c000, &usp[5]);
+			put_user(0x4fc33f81, &usp[6]);
+
+			regs->gr[31] = regs->gr[30] + 8;
+#else
+			/* 64-bit version:
+			 *  0: <frame marker>
+			 *  8: <return address>
+			 * 16: ble 0x100(%%sr2, %%r0)
+			 * 20: ldi __NR_restart_syscall, %r20
+			 * 24: ldd -56(%sp), %r20
+			 * 28: bv %r0(%r20)
+			 * 32: ldd,mb -64(%sp), %r3
+			 */
+			put_user(regs->gr[3] >> 32, &usp[0]); 
+			put_user(regs->gr[3] & 0xffffffff, &usp[1]); 
+			put_user(regs->gr[31] >> 32, &usp[2]); 
+			put_user(regs->gr[31] & 0xffffffff, &usp[3]); 
+			put_user(0xe4008200, &usp[4]);
+			put_user(0x34140000, &usp[5]);
+			put_user(0x53d43f91, &usp[6]);
+			put_user(0xea80c000, &usp[7]);
+			put_user(0x53c33f8d, &usp[8]);
+
+			regs->gr[31] = regs->gr[30] + 16;
+#endif
+			
+			/* Stack is 64-byte aligned, and we only 
+			 * need to flush 1 cache line */
+			asm("fdc 0(%%sr3, %0)\n"
+			    "fic 0(%%sr3, %0)\n"
+			    "sync\n"
+			    : : "r"(regs->gr[30]));
+
+			regs->gr[3] = regs->gr[30];
+			regs->gr[30] += 64;
+			/* Preserve original r28. */
+			regs->gr[28] = regs->orig_r28;
+		} else if (regs->gr[28] == -ERESTARTNOHAND ||
+		           regs->gr[28] == -ERESTARTSYS ||
+		           regs->gr[28] == -ERESTARTNOINTR) {
 			/* Hooray for delayed branching.  We don't
                            have to restore %r20 (the system call
                            number) because it gets loaded in the delay

-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] C110 builtin nic slow?
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Hi Grant,

Sorry to answer to my mail but

> That say. I also try to re-do the same test with ncftp which seems to 
> show the same results excepted that 'put' from c110 to pc 'stail' after 
> only one hundred Kb (and I installed the same ftp server on each ie:
> ii  ftpd           0.17-16        FTP server
> ii  tftpd          0.17-10        Internet trivial file transfer 
> protocol serv).
> 

How may I find and reset the speed setup of a nic (I mean which 10 or 
100 Mb, half or full duplex)?

In a second though I just remember that the pc boot first (i need 
minicom console to boot c110) then latter the c110. So it could be that 
the first one is set in 100 half as default (no connection at boot time) 
and the second 10 half?

Thanks,
	Joel



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Subject: Re: [parisc-linux] Re: how to handle ERESTART_RESTARTBLOCK ?
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On Sun, Oct 26, 2003 at 01:02:01PM -0800, Randolph Chung wrote:
> hrm, oops, that's the magical disappearance act... :)
> 
> Index: arch/parisc/kernel/signal.c
> ===================================================================
> RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/signal.c,v
> retrieving revision 1.11
> diff -u -p -r1.11 signal.c
> --- arch/parisc/kernel/signal.c	24 Sep 2003 17:54:31 -0000	1.11
> +++ arch/parisc/kernel/signal.c	26 Oct 2003 20:53:14 -0000
> @@ -530,10 +531,68 @@ do_signal(sigset_t *oldset, struct pt_re
>  	/* Did we come from a system call? */
>  	if (in_syscall) {
>  		/* Restart the system call - no handlers present */
> -		if (regs->gr[28] == -ERESTART_RESTARTBLOCK ||
> -		    regs->gr[28] == -ERESTARTNOHAND ||
> -		    regs->gr[28] == -ERESTARTSYS ||
> -		    regs->gr[28] == -ERESTARTNOINTR) {
> +		if (regs->gr[28] == -ERESTART_RESTARTBLOCK) {
> +			unsigned int *usp = (unsigned int *)regs->gr[30];
> +
> +			/* Setup a trampoline to restart the syscall
> +			 * with __NR_restart_syscall
> +			 */
> +#ifndef __LP64__
> +			/* 32-bit version:
> +			 *  0: <frame marker>
> +			 *  4: <return address>
> +			 *  8: ble 0x100(%%sr2, %%r0)
> +			 * 12: ldi __NR_restart_syscall, %r20
> +			 * 16: ldw -60(%sp), %r20
> +			 * 20: bv %r0(%r20)
> +			 * 24: ldwm -64(%sp), %r3
> +			 */

What do you think of:

a. Copy the original rp into a temp register.
b. Setup our rp so we return to the stack trampoline.
c. Return to userspace.
d. Trampoline restores original rp.
e. Make call to restart syscall.
f. Kernel does the magic.
g. Return to the original rp.

You don't care if you get a signal because you are never going to return
to the trampoline, so you don't adjust 'sp' to protect the trampoline.

My fears:

a. Timer tick while on the trampoline before the syscall is made.
	= Signal is delivered... what happens?

As a mater of fact, I'm wholely afraid of stack trampolines for the
explicit reason that your timeslice might expire and odd things might
transpire.

c.



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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Re: how to handle ERESTART_RESTARTBLOCK ?
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> What do you think of:

here's a third try using Carlos' idea... seems cleaner (smaller) and
doesn't muck with the stack pointer.

thanks carlos! :-)
randolph

Index: arch/parisc/kernel/signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/signal.c,v
retrieving revision 1.11
diff -u -p -r1.11 signal.c
--- arch/parisc/kernel/signal.c	24 Sep 2003 17:54:31 -0000	1.11
+++ arch/parisc/kernel/signal.c	27 Oct 2003 05:01:52 -0000
@@ -530,10 +531,42 @@ do_signal(sigset_t *oldset, struct pt_re
 	/* Did we come from a system call? */
 	if (in_syscall) {
 		/* Restart the system call - no handlers present */
-		if (regs->gr[28] == -ERESTART_RESTARTBLOCK ||
-		    regs->gr[28] == -ERESTARTNOHAND ||
-		    regs->gr[28] == -ERESTARTSYS ||
-		    regs->gr[28] == -ERESTARTNOINTR) {
+		if (regs->gr[28] == -ERESTART_RESTARTBLOCK) {
+			unsigned int *usp = (unsigned int *)regs->gr[30];
+
+			/* Setup a trampoline to restart the syscall
+			 * with __NR_restart_syscall
+			 *
+			 *  0: <return address (orig r31)>
+			 *  8: <2nd half for 64-bit>
+			 * 12: ldw 0(%sp), %r31
+			 * 16: be 0x100(%sr2, %r0)
+			 * 20: ldi __NR_restart_syscall, %r20
+			 */
+#ifndef __LP64__
+			put_user(regs->gr[31], &usp[0]);
+			put_user(0x0fc0109f, &usp[2]);
+#else
+			put_user(regs->gr[31] >> 32, &usp[0]);
+			put_user(regs->gr[31] & 0xffffffff, &usp[1]);
+			put_user(0x0fc010df, &usp[2]);
+#endif
+			put_user(0xe0008200, &usp[3]);
+			put_user(0x34140000, &usp[4]);
+
+			/* Stack is 64-byte aligned, and we only 
+			 * need to flush 1 cache line */
+			asm("fdc 0(%%sr3, %0)\n"
+			    "fic 0(%%sr3, %0)\n"
+			    "sync\n"
+			    : : "r"(regs->gr[30]));
+
+			regs->gr[31] = regs->gr[30] + 8;
+			/* Preserve original r28. */
+			regs->gr[28] = regs->orig_r28;
+		} else if (regs->gr[28] == -ERESTARTNOHAND ||
+		           regs->gr[28] == -ERESTARTSYS ||
+		           regs->gr[28] == -ERESTARTNOINTR) {
 			/* Hooray for delayed branching.  We don't
                            have to restore %r20 (the system call
                            number) because it gets loaded in the delay


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><br></b><!--magnuson--></font></p><!--tilt--></td></tr><!--=
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ana, Arial, Helvetica, sans-serif"><a href=3D"http://carmela@www.surf=
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  - S<!--cosh-->py o<!--schoolhouse-->n our gi<!--belt-->=
rls in ou<!--candlewick-->r li<!--jewett-->ve h<!--comprehensible-->=
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-monica-->rls cau<!--arteriole-->ght n<!--christenson-->ak<!--=
cloven-->ed in th<!--impetuous-->eir ho<!--conant-->mes by =
our s<!--hospice-->ecre<!--cinnabar-->t ca<!--wherefore-->ms. =
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</body><!--ahem--></html>
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From: Grant Grundler <grundler@parisc-linux.org>
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On Sun, Oct 26, 2003 at 09:10:44PM +0000, Joel Soete wrote:
> How may I find and reset the speed setup of a nic (I mean which 10 or 
> 100 Mb, half or full duplex)?

ethtool?

> In a second though I just remember that the pc boot first (i need 
> minicom console to boot c110) then latter the c110. So it could be that 
> the first one is set in 100 half as default (no connection at boot time) 
> and the second 10 half?

shouldn't matter unless auto-negotiation is broken for one driver or
the other. If they are point-to-point, I expect the negotiation
to take place when the link is brought up with the second NIC.

grant


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Dear friend,
 Compliment of the day, I JULIET UGAGA, The son of late General  KuJI UGAGA =
of the Democratic Republic of Congo my  older son is 25 ,david, I  have a =
little baby "Godwin"
 My father was a General in the Congolese Army. In his position (My father) =
with the office of the presidentcy during the regime of Laurent kabila, he =
was assigned on a secret mission to source and acquire arms  internationally =
in order to strengthen the Government forces against the rebels, which =
already had the support of Rwandan and Uganda Army.
 Meanwhile, he was still negotiating for the purchase of the arms, he =
received on the 16th January 2001 news of the assassination of Laurent Kabila =
which force him to call off the assignment and deposited the  sum of =
US$12.5M, Packed in a diplomatic case in a private security company in the =
Hague, the Netherlands, though he registered the content as precious  stones =
while the real content is (US12.5M) meant for the purchase of arms for  the =
Congolese Army. My father went home for the funeral of the late president, =
but on  his arrival he was arrested, detained and tortured, unfortunately my  =
father suffer cardiac arrest and died on the 17th of March 2001. However,one  =
of our
numerous visits, my mother and I paid him while in prison, my father  was =
able to reveal this secret to me and advice that we should proceed to  the =
Netherlands to claim the money, he handed me all the relevant  documents that
=

will enable me claim the box from the security company.Already, I have  made =
my first visit to the security company and the document entitled to  clear =
this money is with a finance security company in Holland.
 On our arrival in the Netherlands few months ago, we sought for  political =
asylum; which was granted. My mother and I are making frantic effort  on the =
best way to handle this money. We sought advice from an attorney who advised
that we must seek for a trustworthy foreign business partner whom can invest =
this fund in a profitable venture. This we view as the best option because =
our refugee status dose not permit us to operate a bank account, hence we =
seek your assistance and hope you could be trusted.
  Meanwhile, I sincerely ask for your assistance to get this money through =
your account, Your share for assisting us will be 25% of the totalsum, 5% =
will be use for upsetting all the expenses incurred in the courseof =
concluding this venture and the remaining 70% that will be for me and  my =
family. Also you stand to gain from any investment you might introduce us =
into after the conclusion of the transfer.
 Please keep this confidential until we finalize and get this money into your =
account for security reasons.
 This is my e-mail address you can reach  me:julietugaga21@netscape.net
 Thanks and GOD bless.
MISS  JULIET UGAGA  
--7c85db3d-73ef-46ae-bf71-2bde83ee74a3--



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Subject: Re: [parisc-linux] C110 builtin nic slow?
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On Mon, Oct 27, 2003 at 12:39:11PM -0700, Grant Grundler wrote:
> On Sun, Oct 26, 2003 at 09:10:44PM +0000, Joel Soete wrote:
> > How may I find and reset the speed setup of a nic (I mean which 10 or 
> > 100 Mb, half or full duplex)?
> 
> ethtool?

I know the lasi_82596 driver doesn't support ethtool yet.

Someone who was interested and had time & the right machine could do some
serious work on lasi_82596:

 - Get rid of "static struct net_device *netdevs[MAX_DRIVERS];"
 - Make it work on peecees and 680x0 too and then get rid of the original
   82596 driver.
 - Add ethtool support.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: juliet ugaga <julietugaga22@netscape.net>
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This is a multi-part message in MIME format
--d7edaa13-df8a-416d-9cd5-00ea7665ec2f
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable

Dear friend,
 Compliment of the day, I JULIET UGAGA, The son of late General  KuJI UGAGA =
of the Democratic Republic of Congo my  older son is 25 ,david, I  have a =
little baby "Godwin"
 My father was a General in the Congolese Army. In his position (My father) =
with the office of the presidentcy during the regime of Laurent kabila, he =
was assigned on a secret mission to source and acquire arms  internationally =
in order to strengthen the Government forces against the rebels, which =
already had the support of Rwandan and Uganda Army.
 Meanwhile, he was still negotiating for the purchase of the arms, he =
received on the 16th January 2001 news of the assassination of Laurent Kabila =
which force him to call off the assignment and deposited the  sum of =
US$12.5M, Packed in a diplomatic case in a private security company in the =
Hague, the Netherlands, though he registered the content as precious  stones =
while the real content is (US12.5M) meant for the purchase of arms for  the =
Congolese Army. My father went home for the funeral of the late president, =
but on  his arrival he was arrested, detained and tortured, unfortunately my  =
father suffer cardiac arrest and died on the 17th of March 2001. However,one  =
of our
numerous visits, my mother and I paid him while in prison, my father  was =
able to reveal this secret to me and advice that we should proceed to  the =
Netherlands to claim the money, he handed me all the relevant  documents that
=

will enable me claim the box from the security company.Already, I have  made =
my first visit to the security company and the document entitled to  clear =
this money is with a finance security company in Holland.
 On our arrival in the Netherlands few months ago, we sought for  political =
asylum; which was granted. My mother and I are making frantic effort  on the =
best way to handle this money. We sought advice from an attorney who advised
that we must seek for a trustworthy foreign business partner whom can invest =
this fund in a profitable venture. This we view as the best option because =
our refugee status dose not permit us to operate a bank account, hence we =
seek your assistance and hope you could be trusted.
  Meanwhile, I sincerely ask for your assistance to get this money through =
your account, Your share for assisting us will be 25% of the totalsum, 5% =
will be use for upsetting all the expenses incurred in the courseof =
concluding this venture and the remaining 70% that will be for me and  my =
family. Also you stand to gain from any investment you might introduce us =
into after the conclusion of the transfer.
 Please keep this confidential until we finalize and get this money into your =
account for security reasons.
 This is my e-mail address you can reach  me:julietugaga21@netscape.net
 Thanks and GOD bless.
MISS  JULIET UGAGA  
--d7edaa13-df8a-416d-9cd5-00ea7665ec2f--



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From: Nicholas Leippe <nick@byu.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Install failure: C240, 3.0r1, 2003.09.24 and 2003.10.22 net inst isos
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Hello all,

I just got my new C240 set up and attempted to install.  With either of

palinux-2.4.22-pa9-20030924-netinst.iso
palinux-2.4.22-pa13-20031022-netinst.iso

it boots into the debian installer and then promptly hangs at the 'select 
language' menu.  I dug around the archives and found an email about this 
from several years ago, but no resolution was posted.

So I dug out my 3.0r1 cd to try but got an HPMC a little ways into the 
kernel boot.  I know the 3.0r1 cd is good, since I successfully installed 
a C180 with it (besides checking the md5s, which I also did for the 
netinst isos).

HPUX 11.11 successfully boots on this machine, so I'm not leaning towards 
thinking there's a hardware fault.

Any ideas?  Need more info?--just tell me what and how to get it.


Nick



From - Thu Nov 08 21:29:46 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Install failure: C240, 3.0r1, 2003.09.24 and 2003.10.22 net inst isos
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To: Nicholas Leippe <nick@byu.edu>
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Nicholas,
thanks for the bug report.
Please see http://www.parisc-linux.org/faq/kernelbug-howto.html

more questions/comments below.

On Mon, Oct 27, 2003 at 08:33:00PM -0600, Nicholas Leippe wrote:
> Hello all,
> 
> I just got my new C240 set up and attempted to install.  With either of
> 
> palinux-2.4.22-pa9-20030924-netinst.iso
> palinux-2.4.22-pa13-20031022-netinst.iso
> 
> it boots into the debian installer and then promptly hangs at the 'select 
> language' menu.

See "Hung Kernels" section in the FAQ.

Did you try to install with serial console or graphics console?
With serial console, it's easier to capture the output.
And it's possible this bug only affects graphical console.

>   I dug around the archives and found an email about this 
> from several years ago, but no resolution was posted.

URL for mail you found?

> So I dug out my 3.0r1 cd to try but got an HPMC a little ways into the 
> kernel boot.  I know the 3.0r1 cd is good, since I successfully installed 
> a C180 with it (besides checking the md5s, which I also did for the 
> netinst isos).
> 
> HPUX 11.11 successfully boots on this machine, so I'm not leaning towards 
> thinking there's a hardware fault.
> 
> Any ideas?  Need more info?--just tell me what and how to get it.

"in io" output from the boot console handler would also be good.

thanks,
grant


From - Thu Nov 08 21:29:46 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C110 builtin nic slow?
Date: Tue, 28 Oct 2003 09:39:48 +0100
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Grant, Matthew,

>>
>>On Sun, Oct 26, 2003 at 09:10:44PM +0000, Joel Soete wrote:
>> How may I find and reset the speed setup of a nic (I mean which 10 or

>> 100 Mb, half or full duplex)?
>
>ethtool?
>
I will check on my own pc (hp cards but don't remember the model)

hmm I test here with a 3C905B (on an hp vectra) but:
# ethtool eth0
Settings for eth0:
No data available

???

(same results on a b180 with eth0: Digital DS21143 Tulip rev 65 [last kernel
2.4.21])

>> In a second though I just remember that the pc boot first (i need 
>> minicom console to boot c110) then latter the c110. So it could be that

>> the first one is set in 100 half as default (no connection at boot time)

>> and the second 10 half?
>
>shouldn't matter unless auto-negotiation is broken for one driver or 
>the other. If they are point-to-point,

It is a cross-cable

> I expect the negotiation to take place when the link is brought up with

>the second NIC.

I am curious to see if ethtool works for my pc's nic to check the behaviour
on this side.

Thanks for all info,
    Joel



-------------------------------------------------------------------------
Tiscali ADSL: 3 mois GRATUITS! L'Internet rapide, c'est pour tout le monde.

http://reg.tiscali.be/default.asp?lg=fr




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From - Thu Nov 08 21:29:46 2018
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C110 builtin nic slow?
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Cc: Grant Grundler <grundler@parisc-linux.org>,
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To: Joel Soete <soete.joel@tiscali.be>
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Hi all,

Sorry for this auto-answer but don't see how better follow-up without 
breacking thread?


Joel Soete wrote:
> Grant, Matthew,
> 
> 
> I will check on my own pc (hp cards but don't remember the model)
> 
> hmm I test here with a 3C905B (on an hp vectra) but:
> # ethtool eth0
> Settings for eth0:
> No data available
> 
> ???
> 
> (same results on a b180 with eth0: Digital DS21143 Tulip rev 65 [last kernel
> 2.4.21])
> 
And unfortunately no better results:
[...]
hp100: eth0: Busmaster mode enabled.
hp100: eth0: HP J2585B at 0xe400, IRQ 10, PCI bus, 32k SRAM (rx/tx 75%).
hp100: eth0: Adapter is attached to 10Mb/s network.
[...]

hmm I don't find the second nic in may dmesg (I just know that is also 
an hp but a bit older)?

Anyway:
  # ethtool eth1
Settings for eth1:
No data available
  # ethtool eth0
Settings for eth0:
No data available

Any idea (may be switching the two interfaces: I mean just change 
interfaces)?

Thanks again for your attention,
	Joel




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On Tue, Oct 28, 2003 at 07:32:29PM +0000, Joel Soete wrote:
> Anyway:
>  # ethtool eth1
> Settings for eth1:
> No data available
>  # ethtool eth0
> Settings for eth0:
> No data available
> 
> Any idea (may be switching the two interfaces: I mean just change 
> interfaces)?

As I said, the lasi_82596 driver doesn't support ethtool.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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>As I said, the lasi_82596 driver doesn't support ethtool.

My bad: confusing lasi and lasi_82596; sorry for my misunderstanding and
thanks for clarification ;)

Joel


-------------------------------------------------------------------------
Tiscali ADSL: 3 mois GRATUITS! L'Internet rapide, c'est pour tout le monde.

http://reg.tiscali.be/default.asp?lg=fr




From - Thu Nov 08 21:29:46 2018
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From: ZULU AHMED DANJUMA <zuludanjuma@netscape.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] i need your help
Date: Wed, 29 Oct 2003 16:01:53 +0100
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Dear friend,
You may be surprised to receive this letter from me since you do not
know me personally. I am the first Son of the most popular black
farmer in Zimbabwe who was murdered in the land dispute in my
country. I got your contact through network online hence decided to
write you. Before the death of my father, he had taken me to
Johannesburg to deposit the sum of USD15.Million (Fifteen million United
States dollars), in one of the private security company, as he
foresaw the looming danger in Zimbabwe. This money was deposited in a
box as gem stones to avoid much demurrage from Security Company.
This amount was meant for the purchase of new machines and chemicals
for the Farms and establishment of new farms in Swaziland. This land
problem came when Zimbabwean President Mr. Robert Mugabe when he
introduced a new Land Act Reform wholly affecting the rich white
farmers and some few black farmers, and this resulted to the killing
and mob action by Zimbabwean war veterans and some lunatics in the
society. In fact a lot of people were killed because of this Land
reform Act for which my father was one of the victims. it is against
this background that I and my family fled Zimbabwe to South Africa
for fear of our lives.
After which I traveled to the Netherlands and I am currently staying
in the Netherlands where i am seeking political asylum and more so
have decided to transfer my father's money to a more reliable foreign
account. Since the law of Europe prohibits a refugee (asylum seeker)
to open any bank account or to be involved in any financial
transaction throughout the territorial zone of European Union. As the
eldest child of my father, I am saddled with the responsibility of
seeking a genuine foreign account where this money could be
transferred without the knowledge of my government who are bent on
taking everything we have got.
The South African government seems to be playing along with them. I
am faced with the dilemma of moving this amount of money out of South
Africa for fear of going through the same experience in future. Both
countries have similar political history. I am seeking for a partner
who I have to entrust my future and that of my family in his hands, I
must let you know that this transaction is risk free. If you accept
to assist me and my family, all I want you to do for me, is to make
arrangements with the security company to clear the Consignment
(funds) from their affiliate office here in the Netherlands as i have
already given directives for the consignment to be brought to the
Netherlands from South Africa.
But before then all modalities will have to be put in place like
change of ownership to the consignment. I have two options for you.
Firstly you can choose to have certain percentage of the money for
nominating your account for this transaction. Or you can go into
partnership with me for the proper profitable investment of the money
in your country. Whichever the option you want, feel free to notify
me. I have also mapped out 2% of this money for all kinds of expenses
incurred in the process of this transaction.
If you do not prefer a partnership I am willing to give you 10% of
the money while the remaining 88% will be for my investment in your
country. Contact with my email-  while I implore you to maintain the
absolute secrecy required in this transaction.
Thanks, GOD BLESS YOU
Best regards,
ZULU DANJUMA
NOTE:
ON YOUR INABILITY TO HANDLE THIS TRANSACTION RESPOND TO ME AND INFORM
ME SO I CAN LOOK FOR SOMEONE ELSE.
   
--ccde8286-9bf1-4b6d-a8b9-9f68c3876cc5--



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From: "Jan Prunk" <janprunk@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HP E35
Date: Wed, 29 Oct 2003 18:27:32 +0000
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Hello !

I am wondering where I can find information about installing linux on the 
E35 machine.
Are the scsi disks now supported ?

Regards, Jan

_________________________________________________________________
Protect your PC - get McAfee.com VirusScan Online 
http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963



From - Thu Nov 08 21:29:47 2018
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From: Mrs Serena Jones <serenajones1@rediffmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] DONATION FOR THE LORD.
Date: Thu, 30 Oct 2003 00:45:00 +0100
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From: Mrs Serena Jones

PLEASE ENDEAVOUR TO USED IT FOR THE CHILDREN OF GOD.
I am the above named person from Kuwait. I am married
to Dr. Harry Jones who worked with Kuwait embassy in Ivory Co
ast for nine years before he died in the year
2000.
We were married for eleven years without a child. He died a
fter a brief illness that lasted for only
four days. Before his death we were both born again Christia
ns.Since his death I decided not to re-
marry or get a child outside my matrimonial home which the Bi
ble is against.When my late husband was alive he deposited the
sum of$8.6Million (Eight Million six hundred thousand U.S. D
ollars) with one finance/security company in Amsterderm Hollan
d. Presently, this money is still with the Security Company.
Recently, my Doctor told me that I would not last for the next
three
months due to cancer problem. Though what disturbs me most i
s my stroke sickness. Having known my condition I decided to
donate this fund to church or better still a christian individ
ual that will utilize this money the way I am going to instruc
t here in. I want a church that will use this fund to fund chu
rches, orphanages and widows propagating the word of God and t
o ensure that the house of God is maintained. The Bible made
us to understand that Blessed is the hand that giveth.
I took this decision because I don?t have any child that wil
l inherit this money and my husband relatives are not Christi
ans and I don?t want my husband?s hard earned money to be misu
sed by unbelievers. I don?t want a situation where this money
will be used in an ungodly manner. Hence the reason for taking
this bold decision. I am not afraid of death hence I know whe
re I am going. I know that I am going to be in the bosom of th
e Lord. Exodus 14 VS 14 says that the lord will fight my case
and I shall hold my peace. I don?t need any telephone communi
cation in this regard because of my health because of the pres
ence of my husband?s relatives around me always. I don?t want
them to know about this development. With God all things are p
ossible. As soon as I receive your reply I shall give you the
contact of the Finance/Security Company in Amsterderm Holland
. I will also issue you a letter of authority that will prove
you as the original-
beneficiary of this fund. I want you and the church to always
pray for me because the lord is my shephard. My
happiness is that I lived a life of a worthy Christian. Whoe
ver that wants to serve the Lord must serve him in spirit and
truth. Please always be prayerful all through your life. Any d
elay in your reply will give me room in sourcing for a chuch
or christian individual for this same purpose. Please assure
me that you will act accordingly as I stated herein. Hoping
to hearing from you.

N.B-
PLEASE I WILL ADVICE YOU TO GIVE THE LAWYER IN CHARGE A CALL IN HOLLAND =
IMMEDIATELY, HE DOES EVERYTHING ON MY BEHALF AND HE'S VERY UNDERSTANDING AND =
I BELIEVE HE WILL LEAD YOU TO YOUR SUCCESS IN JESUS NAME, THE LAWYER'S NAME =
IS GERRY SLY HIS CONTACT PHONE NUMBER IS 00-31-620-668-086.

Remain blessed in the name of the Lord.
Yours in Christ,
Mrs Serena Jones
  
--557faaa2-35fb-4680-a92f-efbd3814fad6--



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Subject: [parisc-linux] ePHARMACY - VIA.GRA, Soma, Celebrex - PRICES SLASHED...Byron
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--_F0B.7..A.E6D58C.E5
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From: "Jerald Michaud" <832sdpc@yahoo.com>
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Subject: [parisc-linux] Boost Your  Car's Gas Mileage 27%+.....dutch
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--7FFE0F5EB2C_9.6A_FAB1
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Xref: news.gmane.org gmane.linux.ports.parisc:19965

in our syscall table, semctl, msgctl and shmctl are marked as "broken".
Does anybody know what's up with that?

i did a simple hack, which is to replace

        return sys_msgctl (msqid, cmd & ~IPC_64, buf);

with 

        return sys_msgctl (msqid, cmd | IPC_64, buf);

in sys_parisc.c, and at least in some simple tests it seems to work
(whereas the original one was really broken)

haven't tested it very much yet.... a similar hack for semctl doesn't
seem to work. haven't investigated more yet.. but wanted to know if
others can shed light on what was the problems there....

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] backport unaligned.c Randolph patch
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Hi Randolph,

Here is the backport of your unaligned.c patch:

=====
--- unaligned.c.SAV     2003-11-01 15:26:14.000000000 +0000
+++ unaligned.c 2003-11-01 15:26:04.000000000 +0000
@@ -24,24 +24,6 @@
  #include <linux/config.h>
  #include <linux/sched.h>
  #include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/spinlock.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/atomic.h>
-
-#include <asm/smp.h>
-#include <asm/pdc.h>

  /* #define DEBUG_UNALIGNED 1 */

@@ -493,37 +475,6 @@
         struct siginfo si;
         register int flop=0;    /* true if this is a flop */

-       /* if the unaligned access is inside the kernel:
-        *   if the access is caused by a syscall, then we fault the calling
-        *     user process
-        */
-       if (!user_mode(regs))
-       {
-               const struct exception_table_entry *fix;
-
-               /* see if the offending code have its own
-                * exception handler
-                */
-
-               fix = search_exception_table(regs->iaoq[0]);
-               if (fix)
-               {
-                       /* lower bits of fix->skip are flags
-                        * upper bits are the handler addr
-                        */
-                       if (fix->skip & 1)
-                               regs->gr[8] = -EFAULT;
-                       if (fix->skip & 2)
-                               regs->gr[9] = 0;
-
-                       regs->iaoq[0] += ((fix->skip) & ~3);
-                       regs->iaoq[1] = regs->iaoq[0] + 4;
-                       regs->gr[0] &= ~PSW_B;
-
-                       return;
-               }
-       }

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> Here is the backport of your unaligned.c patch:

I think your mailer munged your patch, it doesn't apply cleanly. i've
applied a cleaned up version of your patch to 2.4.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] Service handbook for HP9000 856 E55
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Hello,

I look for this service handbook whithout any success. Could someone send me the
relevant file, please ? Thanks you !

Bests regards,

A+
Batou.

--
http://www.montsbrumeux.org


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Hello,

Up to now, the server successfully boots on the original HP-UX. But we have no
access to any console on MDP 9-pin DB9. The other connector called DDP is not
equiped with the patch panel :/. 

Any hint to access to serial console ?


Thanks,

jm. Harang



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Subject: Re: [parisc-linux] Re: backport unaligned.c Randolph patch
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On Sat, Nov 01, 2003 at 09:32:15AM -0800, Randolph Chung wrote:
> I think your mailer munged your patch, it doesn't apply cleanly. i've
> applied a cleaned up version of your patch to 2.4.

Was the intent to add new code?
The patch was reversed it seems too.

grant


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Le Sat, 1 Nov 2003 11:59:59 -0800 (PST)
Stan Sieler <sieler@allegro.com> a =E9crit:

> Hi,
>=20
> What card on the HP 9000/E35 are you trying to use with a console port?
> (And, which connector (and: male/female, round or 9 pin or 25 pin or ?))
>=20
> (I know the questions may be obvious to you, but there are several=20
> possibilities ... knowing which you're trying to do may help me answer yo=
u.)
>=20
> > Up to now, the server successfully boots on the original HP-UX. But we =
have
> > no access to any console on MDP 9-pin DB9. The other connector called D=
DP is
> > not equiped with the patch panel :/.=20
>=20
> Yes, I've got an E35 here (running HP-UX).
>=20

I use the APMUX port (the only one on the E55 I/O board), with the cable ref
A1703-63009. At one end with high-density connector for APMUX and at the ot=
her
ends one DB9 called MDP and something like big centronics called DDP (for t=
he
patch panel i don't own). So i try the MDP port without result.

Thanks

A+
jm. Harang



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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] Re: backport unaligned.c Randolph patch
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Randolph Chung wrote:
>>Here is the backport of your unaligned.c patch:
> 
> 
> I think your mailer munged your patch, it doesn't apply cleanly.
I don't think that mozilla was the cause but well my 'cut and past' 
method :(, sorry.

> i've
> applied a cleaned up version of your patch to 2.4.
> 
> randolph
Thanks a lot,
	Joel



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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] evolution (1.4.5-1) 'protection id trap' [was:
	do_page_fault?]
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To: Carlos O'Donell <carlos@baldric.uwo.ca>
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Hi Carlos,

I don't understand anymore anything.

This afternoon i recompile k 2.4.23-pre9-pa13 + Randolph patch to test
it. (Ok)

So I launch evolution which crash at the same place as usual.

After the diner I restart this c110 with this new kernel but this time,
no more "do_page_fault() pid=805 command='evolution' type=7". I restart
it severall time no means to reproduce anymore :(

Joel

On Tue, 2003-10-21 at 06:24, Joel Soete wrote:
> Hi Carlos,
> 
> Sorry, for bad wrap (in fact cut and past behaviour was different is the
> src is xterm or a minicom, and I don't pay attention: my bad).
> 
> Sorry also if the 'original message' below was so badly inserted, but my
> isp support couldn't help me to fix this pb :(
> 
> Finaly, I would also like to trace this pb with gdb but this c110 is a bit
> slow and requested many time to compile another kernel to allow me to compare
> 2.4 and 2.6 behaviour :(. I would so try next week-end.
> 
> Thanks for your understand,
>     Joel
> 
> >-- Original Message --
> >From: Carlos O'Donell <carlos@baldric.uwo.ca>
> >To: Joel Soete <soete.joel@tiscali.be>
> >Cc: parisc-linux@parisc-linux.org
> >Date: Sun, 19 Oct 2003 19:10:15 -0400
> >Subject: Re: [parisc-linux] evolution (1.4.5-1) 'protection id trap' [was:
> >do_page_fault?]
> >
> >
> >On Sun, Oct 19, 2003 at 07:49:08PM +0000, Joel Soete wrote:
> > Hi pa,
> > 
> > Please apologies, I forget to mentioned an important matter:
> > with 2.6.0-test-pa1 it is not anymore a do_page_fault() but:
> > evolution (pid 2454): Protection id trap (code 
> >7) 
> 
> Do not wrap lines like this. 
>  
> > YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI 
> >                            PSW: 00000000000001000000000000001111 Not 
> > tainted                                                       r00-03 
> 
> You should really run evol
> >tion through gdb. Remember to use "handle all
> nostop" and "handle all pass".
> 
> c.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-
> >inux
> 
> 
> 
> -------------------------------------------------------------------------
> Tiscali ADSL: 3 mois GRATUITS! L'Internet rapide, c'est pour tout le monde.
> 
> http://reg.tiscali.be/default.asp?lg=fr
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: Randolph Chung <tausq@debian.org>
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Subject: [parisc-linux] sablevm on hppa
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Well, it started innocently enough on irc...

<tausq> an aside: what's needed to get it to work on hppa? just ffi?
<gadek> tausq: I belive so (unless we hit some bug ;-)
* tausq might give it a try sometime
<gadek> tausq: you're welcome. I am here most of the time so I should be able
          to help/participate in realtime.
<gadek> tausq: if you have libffi ready - we should have it working in less
          than an hour.
<tausq> hmmmm :-)
* gadek/#debian-devel would say 20 minutes depending on how fast one can type
          ;-)
<tausq> he got it down to only 5 fails in the ffi testsuite
<tausq> ok, let's try... ;-)
<gadek> tausq: seriously? now? [would be cool!]

and 25 minutes later, we have it working! (well, HelloWorld works, and
gadek's btf tests work when sablevm is compiled with O0)

Many thanks to gadek for his help. I'm sure it won't be nearly as easy
otherwise :) Unfortunately there is still some work to do before this
can really make it officially into upstream/debian.... foremost is
getting ffi submitted upstream and getting proper atomic ops support.
Hopefully those issues will be resolved soon. 

stay tuned,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/





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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] BUG 2.6.0-t9 netperf/procfs panic
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Xref: news.gmane.org gmane.linux.ports.parisc:19975

I was trying to test tg3 w/ and w/o TSO on bcm5701 NICs...wasn't
getting good results with anything (260-380Mb/s on TCP stream).
I switched netperf "client" from a500 (2.4 kernel, gsyprf11) to
ia64 machine ("iota") also running 2.6.0-test9. The netperf "server"
(a500 running 2.6.0-t9, "ion") data page faulted. It seemed to be
working until I tried to run top...then started spewing:
	kernel BUG at fs/proc/base.c:746!

before it panic'd.

It's past 1AM...I can post more details tomorrow or later this
week. I have matching kernel/source on ion:/usr/src/linux-2.6.
Here's the console output.

hth,
grant

...
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<0000000010166d7c>] 
 [<00000000101c5e10>]  [<00000000101c4f38>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<0000000010189ce8>]  [<00000000101a3890>]  [<0000000010188338>]  [<000000001010ce4c>] 
 [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<000000001019c25c>] 
 [<00000000101c5e10>]  [<00000000101c69fc>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<00000000101a3890>]  [<000000001010ce4c>]  [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<0000000010166d7c>] 
 [<00000000101c5e10>]  [<00000000101c4f38>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<0000000010189ce8>]  [<00000000101a3890>]  [<0000000010188338>]  [<000000001010ce4c>] 
 [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<000000001019c25c>] 
 [<00000000101c5e10>]  [<00000000101c69fc>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<00000000101a3890>]  [<000000001010ce4c>]  [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<0000000010166d7c>] 
 [<00000000101c5e10>]  [<00000000101c4f38>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<0000000010189ce8>]  [<00000000101a3890>]  [<0000000010188338>]  [<000000001010ce4c>] 
 [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<000000001019c25c>] 
 [<00000000101c5e10>]  [<00000000101c69fc>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<00000000101a3890>]  [<000000001010ce4c>]  [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<0000000010166d7c>] 
 [<00000000101c5e10>]  [<00000000101c4f38>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<0000000010189ce8>]  [<00000000101a3890>]  [<0000000010188338>]  [<000000001010ce4c>] 
 [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<000000001019c25c>] 
 [<00000000101c5e10>]  [<00000000101c69fc>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<00000000101a3890>]  [<000000001010ce4c>]  [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<0000000010166d7c>] 
 [<00000000101c5e10>]  [<00000000101c4f38>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<0000000010189ce8>]  [<00000000101a3890>]  [<0000000010188338>]  [<000000001010ce4c>] 
 [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<000000001013a69c>]  [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>] 
 [<000000001019c25c>]  [<00000000101c5e10>]  [<00000000101c69fc>]  [<00000000101c32c0>] 
 [<00000000101a3218>]  [<00000000101a3890>]  [<000000001010ce4c>]  [<000000001010c074>] 

kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<0000000010166d7c>] 
 [<00000000101c5e10>]  [<00000000101c4f38>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<0000000010189ce8>]  [<00000000101a3890>]  [<0000000010188338>]  [<000000001010ce4c>] 
 [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<000000001019c25c>] 
 [<00000000101c5e10>]  [<00000000101c69fc>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<00000000101a3890>]  [<000000001010ce4c>]  [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<0000000010166d7c>] 
 [<00000000101c5e10>]  [<00000000101c4f38>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<0000000010189ce8>]  [<00000000101a3890>]  [<0000000010188338>]  [<000000001010ce4c>] 
 [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<000000001019c25c>] 
 [<00000000101c5e10>]  [<00000000101c69fc>]  [<00000000101c32c0>]  [<00000000101a32100000101c5e10>]  [<00000000101c69fc>]  [<00000000101c32c0>] 
 [<00000000101a3218>]  [<00000000101a3890>]  [<000000001010ce4c>]  [<000000001010c094>] 

kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<000000001013b740>] 
 [<00000000101c5e10>]  [<000000001014bef8>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<0000000010112200>]  [<00000000101a3890>]  [<0000000010112320>]  [<000000001010ce4c>] 
 [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<000000001019c25c>] 
 [<00000000101c5e10>]  [<00000000101c69fc>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<00000000101a3890>]  [<000000001010ce4c>]  [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>]  [<0000000010166d7c>] 
 [<00000000101c5e10>]  [<00000000101c4f38>]  [<00000000101c32c0>]  [<00000000101a3218>] 
 [<0000000010189ce8>]  [<00000000101a3890>]  [<0000000010188338>]  [<000000001010ce4c>] 
 [<000000001010c074>] 
kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010166ea4>]  [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>] 
 [<0000000010176e38>]  [<00000000101c5e10>]  [<00000000101c69fc>]  [<00000000101c32c0>] 
 [<00000000101a3218>]  [<00000000101a3890>]  [<000000001010ce4c>]  [<000000001010c094>] 

kernel BUG at fs/proc/base.c:746!
Kernel addresses on the stack:
 [<0000000010247024>]  [<0000000010110264>]  [<00000000101c4618>]  [<00000000101c5c60>] 
 [<0000000010166d7c>]  [<00000000101c5e10>]  [<00000000101c4f38>]  [<00000000101c32c0>] 
 [<00000000101a3218>]  [<0000000010189ce8>]  [<00000000101a3890>]  [<0000000010188338>] 
 [<000000001010ce4c>]  [<000000001010c094>] 

Stack Dump:
 000000004c259b38:  000000004c259b38 0000000000000000 0000000000000000 0000000000000000 
 000000004c259b18:  0000000000000002 00000000104bcc40 0000000000000001 000000004c259970 
 000000004c259af8:  0000000000000010 0000000000000001 00000000104bcc40 0000000000000001 
 000000004c259ad8:  000000004c259970 0000000000000010 3fe0000000000000 4271d59eaaaaaaaa 
 000000004c259ab8:  0000000000000000 000000004c2595c0 00000004104c8218 00000000104bcc40 
 000000004c259a98:  000000000000000f 0000000000000000 000000001050de80 5555555555555555 
 000000004c259a78:  5555555555555555 0000000010110f64 5555555555555555 41c75e857c000000 
 000000004c259a58:  5555555555555555 5555555555555555 5555555555555555 5555555555555555 
 000000004c259a38:  0000000000000000 5555555555555555 0000000000000000 00000000104bcc40 
 000000004c259a18:  0000000000000004 00000000416febc0 00000000104bcc40 000000003f409800 
 000000004c2599f8:  0000000000000000 0000000010498ea0 0000000000000002 000000003f409800 
 000000004c2599d8:  0000000000000000 ffffffff80000000 0000000010478b80 00000000104d4000 
 000000004c2599b8:  0000000010551f00 0000000010551f10 0000000000000015 00000000104bcc40 
 000000004c259998:  00000000104bcc40 0000000000016e3a 00000000104bcc40 0000000000000000 
 000000004c259978:  0000000000000002 000000003fd6b8a0 0000000000000001 000000003f409b90 
 000000004c259958:  0000000000000000 0000000000000000 00000000104bcc40 0000000000000020 
 000000004c259938:  00000000104bcc40 000000001024835c 00000000000005a8 000000004c258210 
 000000004c259918:  0000000000000002 00000000104bcc40 0000000000000001 000000004c259770 
 000000004c2598f8:  0000000000000010 000000001010c094 00000000104bcc40 0000000000000001 
 000000004c2598d8:  000000004c259770 00000000452f4a08 0000012a104bcc40 0000000000010000 
 000000004c2598b8:  0000000000010000 000000001014bd9c 0000000000000102 000000003f409b40 
 000000004c259898:  0000000000000001 00000000104bcc40 0000000000000000 000000004c2596f0 
 000000004c259878:  0000000000000010 0000000000000001 00000000104bcc40 00000004104c8218 
 000000004c259858:  0000000000000000 000000000e751280 0000000000000019 000000003d91f180 
 000000004c259838:  0000000000000000 000000001014c1a4 000000003f409b40 0000000000000000 
 000000004c259818:  000000001016c338 000000001016c334 0000000000000000 0000000000000000 
 000000004c2597f8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000 
 000000004c2597d8:  000000000000c880 0000000000000000 000000000000c880 000000000000c880 
 000000004c2597b8:  0000000000000001 000000001014158c 00000000f000022c 00000000f0002a7c 
 000000004c259798:  0000000000000802 412e848000000000 3fe0000000000000 4271d59eaaaaaaaa 
 000000004c259778:  0000000000000000 0000000000000000 000000004fac6000 0000000000000002 
 000000004c259758:  0000000010416040 0000000000000002 000000001050de80 5555555555555555 
 000000004c259738:  5555555555555555 00000000101a1e90 5555555555555555 41c75f4850000000 
 000000004c259718:  5555555555555555 5555555555555555 5555555555555555 5555555555555555 
 000000004c2596f8:  0000000000000000 5555555555555555 0000000000000000 41d3ab511e000000 
 000000004c2596d8:  0000000000000000 0000000000000000 0000000000000000 0800000000000000 
 000000004c2596b8:  0000000000008000 000000004c2595c0 0000000000002f84 00000000ffffd07c 
 000000004c259698:  00000000104bcc40 00000000000000cc 0000000000002f84 0000000000000000 
 000000004c259678:  0000000017c20000 0000000000000000 0000000000000005 ffffffffffffd07c 
 000000004c259658:  00000004104c8218 000000004820c5c0 0000000000000000 000000004c258c00 
 000000004c259638:  7fffffffffffffff 0000000000000000 000000004c258210 0000000000100000 
 000000004c259618:  0000000000200000 000000004fffe010 0000000010551f30 0000000000000018 
 000000004c2595f8:  00000000104bcc40 0000000000000015 0000000010551f10 0000000010551f00 
 000000004c2595d8:  00000000104d4000 000000001016c320 00000000000000aa 000000000806000e 
 000000004c2595b8:  00000000105315c8 000000001016c320 00000000104bcc40 00000000460c8bc0 
 000000004c259598:  00000000460c8bc0 00000000104bcc40 00000000104bcc40 0000000000010000 
 000000004c259578:  0000000000010000 00000000416febc0 0000000043874200 0000000000094000 
 000000004c259558:  00000000460c8bc0 0000000000094000 0000000010478b70 00000000380d34c0 
 000000004c259538:  000000001047dda8 000000000009fce8 000000004c2592b0 00000000104bcc40 
 000000004c259518:  0000000000000018 000000004fffe000 000000004fffe010 00000000104bcc40 
 000000004c2594f8:  00000000104bcc40 0000000010551e70 0000000000200200 0000000000100100 
 000000004c2594d8:  0000000010533bd0 00000000104bcc40 0000000000000000 0000000000000040 
 000000004c2594b8:  000000003f409800 000000001016cbb8 000000000800000f 000000004c259248 
 000000004c259498:  0000000000094000 0000000000000001 00000000380d3ac0 00000000104bcc40 
 000000004c259478:  0000000000002ba8 000000004c258210 0000000010551e70 0000000010551f00 
 000000004c259458:  0000000010551fb0 0000000000000001 0000000000000001 000000004c2592b0 
 000000004c259438:  0000000000000010 000000001016ce54 00000000104bcc40 0000000000000001 
 000000004c259418:  000000004c2592b0 0000000000000010 000000001050de80 5555555555555555 
 000000004c2593f8:  00000000104bcc40 00000000460c8bc0 00000000104bcc40 00000000460c8bc0 
 000000004c2593d8:  0000000000000000 00000000104bcc40 5555555555555555 5555555555555555 
 000000004c2593b8:  0000000000000000 000000001014c1a4 0000000000000000 41d3ab511e000000 
 000000004c259398:  0000000010421170 00000000104bcc40 000000000000005d 000000004c259258 
 000000004c259378:  000000004c259258 0000000000200200 0000000000100100 00000000380d34c0 
 000000004c259358:  00000000104bcc40 0000000000002ba8 00000000104bcc40 0000000000000000 
 000000004c259338:  000000000800000f 000000001014c0cc 0000000000000002 0000000000000000 
 000000004c259318:  0000000000000000 0000000000000000 0000000010478b80 000000004c258f40 
 000000004c2592f8:  7fffffffffffffff 0000000010247024 0000000000000000 000000004c258c00 
 000000004c2592d8:  0000000000000000 0000000000000001 0000000000000000 00000000380d34c0 
 000000004c2592b8:  0000000045aa3820 00000000105315a8 0000000000000001 00000000104bcc40 
 000000004c259298:  000000000000000a 000000000800000e 0000000000000002 00000000104bcc40 
 000000004c259278:  00000000105315c8 000000004c259258 000000004c259258 000000004c259258 
 000000004c259258:  000000004c259258 000000004c258c00 0000012c00000000 4271d59eaaaaaaaa 
 000000004c259238:  0000000000000000 0000000010146570 000000004fac6000 0000000000000002 
 000000004c259218:  0000000010416040 0000000000000002 000000004c258c00 0000000000000000 
 000000004c2591f8:  0000000000000002 00000000380d34c0 0000000000002ba8 0000000000000000 
 000000004c2591d8:  7fffffffffffffff 0000000000000000 0000000000000000 000000003f409800 
 000000004c2591b8:  000000003f409b40 0000000010111550 0000000000000000 0000000000000042 
 000000004c259198:  0000000043317bc0 000000003f409800 0000000000000000 0800000000000000 
 000000004c259178:  000000000000fa00 0000000000000000 0000000000000040 00000000104bcc40 
 000000004c259158:  0000000000000000 000000004c258c00 00000000104bcc40 0000000003963c84 
 000000004c259138:  000000000800000f 0000000010112200 0000000000000001 000000003f409b90 
 000000004c259118:  0000000000000000 0000000000000000 0000000000000173 0000000000000000 
 000000004c2590f8:  000000003f409800 000000004faceb80 00000000460c8bc0 00000000104bcc40 
 000000004c2590d8:  0000000043317bc0 000000003f409800 00000000104a4700 0000000000000002 
 000000004c2590b8:  0000000000000000 0000000000000000 ffffffff80000000 0000000000000000 
 000000004c259098:  7fffffffffffffff 00000000452f4a08 0000000010478b70 000000ff0806ff0f 
 000000004c259078:  00000000105315c8 0000000000000000 0000000000000000 8000000000000000 
 000000004c259058:  00000000104bcc40 000000004c258c00 0000012b00000000 00000000380d34c0 
 000000004c259038:  000000000000807f 0000000010112320 000000003f409800 00000000104bcc40 
 000000004c259018:  00000000104bcc40 000000003f409800 000000000000003e 000000004c258c00 
 000000004c258ff8:  0000000000006808 00000000102ff628 0000000011a90c00 00000000104bcc40 
 000000004c258fd8:  00000000000a0694 00000000000a0690 0000000000000000 0000000000010000 
 000000004c258fb8:  00000000380d34c0 0000000010540e20 00000000460c8bc0 00000000104bcc40 
 000000004c258f98:  00000000104bcc40 0000000043b25540 0000000000000000 000000000000c880 
 000000004c258f78:  00000000000005a8 000000004c258210 00000000000005a8 0000000045aa3dfc 
 000000004c258f58:  00000000104bcc40 0000000000000020 3fe0000000000000 4271d59eaaaaaaaa 
 000000004c258f38:  0000000000000000 000000001010c074 000000004fac6000 0000000000000002 
 000000004c258f18:  0000000010416040 0000000000000002 000000001050de80 5555555555555555 
 000000004c258ef8:  5555555555555555 00000000101a1e90 5555555555555555 41c75f4850000000 
 000000004c258ed8:  0000000000000010 00000000104bcc40 0000000000000004 000000004c258d30 
 000000004c258eb8:  0000000000000010 0000000000000001 00000000104bcc40 0000000000000004 
 000000004c258e98:  000000004c258d30 000000000f415222 0000000000000014 0800000000000000 
 000000004c258e78:  000000000000807f 000000001030e700 000000004c258df0 0000000000000000 
 000000004c258e58:  0000000010245054 000000001024505c 0000000000000000 0000000000000000 
 000000004c258e38:  0000000000000000 0000000000000000 0000000000000000 0000000000000000 
 000000004c258e18:  000000000000c880 0000000000000000 000000000000c880 000000000000c880 
 000000004c258df8:  0000000000000001 000000001014158c 00000000f000022c 00000000f0002a7c 
 000000004c258dd8:  0000000000000802 412e848000000000 3fe0000000000000 4271d59eaaaaaaaa 
 000000004c258db8:  0000000000000000 0000000000000000 000000004fac6000 0000000000000002 
 000000004c258d98:  0000000010416040 0000000000000002 000000001050de80 5555555555555555 
 000000004c258d78:  5555555555555555 00000000101a1e90 5555555555555555 41c75f4850000000 
 000000004c258d58:  5555555555555555 5555555555555555 5555555555555555 5555555555555555 
 000000004c258d38:  0000000000000000 5555555555555555 0000000000000000 41d3ab511e000000 
 000000004c258d18:  0000000000000000 0000000000000000 0000000000000000 0800000000000000 
 000000004c258cf8:  0000000000008000 000000004c258c00 000000004c258bf0 0000000080100b68 
 000000004c258cd8:  00000000104bcc40 0000000040483fed 0000000045aa3932 00000000000004ca 
 000000004c258cb8:  00000000000005a8 0000000000000001 000000001041f880 0000000000000000 
 000000004c258c98:  00000000000005a8 000000004820c5c0 0000000000000000 00000000452f4a08 
 000000004c258c78:  7fffffffffffffff 0000000000000000 000000004c258210 0000000000002ba8 
 000000004c258c58:  00000000104bcc40 00000000380d34c0 00000000104bcc40 0000000000000020 
 000000004c258c38:  00000000104bcc40 0000000045aa3dfc 00000000000005a8 000000004c258210 
 000000004c258c18:  00000000000005a8 00000000102fb8b8 0000000000000000 000000ff080eff0f 
 000000004c258bf8:  0000000000000007 000000001030e700 0000000000000005 00000000104bcc40 
 000000004c258bd8:  0000000000000009 000000000800000f 0000000000000020 00000000104bcc40 
 000000004c258bb8:  000000001054f380 000000003213a000 00000000104bcc40 000000000800000f 
 000000004c258b98:  00000000104bcc40 00000000104bcc40 0000012c1050de80 5555555555555555 
 000000004c258b78:  5555555555555555 000000001016c790 5555555555555555 00000000460c8bc0 
 000000004c258b58:  000000003d97dc6c 00000000104bcc40 000000000005cb88 000000004820c580 

Kernel addresses on the stack:
 [<0000000010110ba8>]  [<0000000010110f64>]  [<000000001010c094>]  [<0000000010247024>] 
 [<00000000102ff628>]  [<00000000101a1e90>]  [<000000001030e700>]  [<000000001014158c>] 
 [<00000000101a1e90>]  [<000000001030e700>]  [<000000001016c790>]  [<00000000102fc1fc>] 
 [<00000000103328f0>]  [<00000000102f9660>]  [<0000000010333260>]  [<0000000010338764>] 
 [<000000001033ea78>]  [<00000000102f8908>]  [<0000000010328c38>]  [<00000000103526f0>] 
 [<00000000102f4680>]  [<0000000010146570>]  [<00000000102f6378>]  [<000000001013bf8c>] 
 [<00000000102f6438>]  [<000000001010ce4c>]  [<000000001010c074>] 

Kernel Fault: Code=15 regs=000000004c2595c0 (Addr=00000004104c8218)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001100000000000001110 Not tainted
r00-03  0000000000000000 00000000000000aa 000000001016c320 00000000104d4000
r04-07  0000000010551f00 0000000010551f10 0000000000000015 00000000104bcc40
r08-11  0000000000000018 0000000010551f30 000000004fffe010 0000000000200000
r12-15  0000000000100000 000000004c258210 0000000000000000 7fffffffffffffff
r16-19  000000004c258c00 0000000000000000 000000004820c5c0 00000004104c8218
r20-23  ffffffffffffd07c 0000000000000005 0000000000000000 0000000017c20000
r24-27  0000000000000000 0000000000002f84 00000000000000cc 00000000104bcc40
r28-31  00000000ffffd07c 0000000000002f84 000000004c2595c0 0000000000008000
sr0-3   000000000000c880 000000000000c880 0000000000000000 000000000000c880
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001016c334 000000001016c338
 IIR: 0e751280    ISR: 0000000000000000  IOR: 00000004104c8218
 CPU:        0   CR30: 000000004c258000 CR31: 0000000010487000
 ORIG_R28: 000000001014c1a4
<2><2>



From - Thu Nov 08 21:29:48 2018
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From: tsbogend@alpha.franken.de (Thomas Bogendoerfer)
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Subject: Re: [parisc-linux] what's up with the ipc syscalls?
Date: Sun, 2 Nov 2003 19:01:50 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:19976

On Sat, Nov 01, 2003 at 12:24:51AM -0800, Randolph Chung wrote:
> in our syscall table, semctl, msgctl and shmctl are marked as "broken".
> Does anybody know what's up with that?
> 
> i did a simple hack, which is to replace
> 
>         return sys_msgctl (msqid, cmd & ~IPC_64, buf);
> 
> with 
> 
>         return sys_msgctl (msqid, cmd | IPC_64, buf);
> 
> in sys_parisc.c, and at least in some simple tests it seems to work
> (whereas the original one was really broken)

if this makes a difference, something in ipc/util.c is missing. When I
added the code above, I also made the ipc_parse_version only return
IPC_64, because we never had IPC_OLD. Older glibc made the call with
IPC_64 set, so we needed the wrapper in sys_parisc.c. I just looked
at the 2.4 version of ipc/util.c and it's still ok ...

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]


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Subject: Re: [parisc-linux] what's up with the ipc syscalls?
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Xref: news.gmane.org gmane.linux.ports.parisc:19977

> if this makes a difference, something in ipc/util.c is missing. When I
> added the code above, I also made the ipc_parse_version only return
> IPC_64, because we never had IPC_OLD. Older glibc made the call with
> IPC_64 set, so we needed the wrapper in sys_parisc.c. I just looked
> at the 2.4 version of ipc/util.c and it's still ok ...

Ah! that explains it.... that change was not brought forward to 2.6...
i was wondering why my test worked on 2.4 and failed on 2.6....

anyway, if we are only supporting IPC_64, then why mask off the IPC64
bit in the wrapper? if the ipc/utils.c stuff isn't there, wouldn't it
default to doing the right thing when IPC_64 is set?

right now glibc *doesn't* call the syscall with IPC_64, but i'm about to
make it do that again.

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>From Mr. PATRICK TAMA.

 
Attention
I am Mr. Patrick Tama and my sister is Miss Rose Tama,
we are the children of Late Chief Paul Tama from Sierra
Leone. 
I am writing you in absolute confidence primarily to
seek your assistance to transfer our cash of Ten
Million Dollars ($10,000.000.00) now in the custody of
a private Security trust firm In Europe,the money is
in trunk boxes deposited and declared as Family
valuables by my late father as a matter of fact the
company does not know the content as money, although
my father made them to understand that the boxes
belongs to his foreign partner. 

Source of the Funds: 

My late father Chief Paul Tama, a native of Mende
District in the Northern province of Sierra Leone, was
the General Manager of Sierra Leone mining
coporation (S.L.M.C.) Freetown. According to my
father, this money was the income accrued from Mining
Corporation's over draft and minor sales. 

Before the peak of the civil war between the rebels
forces of Major Paul Koroma and the combined forces of
ECOMOG peace keeping operation that almost destroyed
my country, following the forceful removal from power
of the civilian elected President Ahmed Tejan Kabbah
by the rebels. My father had already made arrangement
for his family(talking about)my mother, my little
sister and myself to be evacuated to The Netherlands 
with the CERTIFICATE OF DEPOSIT he made with a
security firm in Europe through the aid of U.N
evacuation team. 

During the war in my country, and following the
indiscriminate Looting of Public and Government
properties by the rebel forces, the Sierra Leone
mining corporation was one of the targets looted and it was
destroyed. My father including other top Government
functionaries were attacked and killed by the rebels
in November 2000 because of his relationship with the
civilian Government of Ahmed Tejan Kabbah. 

As a result of my father's death and with the news of
my uncle's Involvement in the air crash in January, it
dashed our hopes of survival. The untimely deaths
caused my mother's heart failure and other related
complications  which  later  lead to her death in the hospital
after we had spent a lot of money on her early
this year. Now my 18 year old sister and I are
alone in this country suffering without any
care or help. Without any relation, we are now like
refugees and orphans. 

Our only hope now is in you and the boxes deposited
in the Security Firm, to this effect, I humbly
solicit your assistance in the Following ways. 

1. To assist me claim this boxes from the security 
Firm as our beneficiary. 

2. To transfer this money (USD$10M) in your name to
your country.

3. To make a good arrangement for a joint business
investment on our Behalf in your country and you, 
our Adviser/ Manager For your assistance, I have 
agreed with my younger sister that 20% of the total 
amount will be for your effort and another 10 % to 
cover all the expenses that may be incurred during the
business transaction, Lastly, I urge you to keep this 
transaction strictly confidential as no one knows our
where about. 

Please as you show your willingness; Forward to us
your full name, address and Tel/ Fax numbers, company
name and address (if any) to me via my private email
address as indicated below, this is for security
reasons as I will only be accessing my private email.
Earnestly awaiting your response. 

Thanks. 

May God bless you as you assist us

Mr. Patrick Tama


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On Sat, Nov 01, 2003 at 11:27:20PM +0000, Joel Soete wrote:
> Hi Carlos,
> 
> I don't understand anymore anything.
> 
> This afternoon i recompile k 2.4.23-pre9-pa13 + Randolph patch to test
> it. (Ok)
> 
> So I launch evolution which crash at the same place as usual.
> 
> After the diner I restart this c110 with this new kernel but this time,
> no more "do_page_fault() pid=805 command='evolution' type=7". I restart
> it severall time no means to reproduce anymore :(

So it doesn't crash anymore? :) 

c.


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From: tsbogend@alpha.franken.de (Thomas Bogendoerfer)
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Subject: Re: [parisc-linux] what's up with the ipc syscalls?
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On Sun, Nov 02, 2003 at 10:12:52AM -0800, Randolph Chung wrote:
> anyway, if we are only supporting IPC_64, then why mask off the IPC64
> bit in the wrapper? if the ipc/utils.c stuff isn't there, wouldn't it
> default to doing the right thing when IPC_64 is set?

look at the switch statements in msg.c/sem.c/shm.c. If you don't mask
off IPC_64, the cases don't match.

> right now glibc *doesn't* call the syscall with IPC_64, but i'm about to
> make it do that again.

I don't think this is a good idea, because by checking for IPC_64 we
could see, whether an old glibc is used and could convert structs
(see sys_parisc.c:sys_shmctl_broken()).

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]


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> look at the switch statements in msg.c/sem.c/shm.c. If you don't mask
> off IPC_64, the cases don't match.
> 
> > right now glibc *doesn't* call the syscall with IPC_64, but i'm about to
> > make it do that again.
> 
> I don't think this is a good idea, because by checking for IPC_64 we
> could see, whether an old glibc is used and could convert structs
> (see sys_parisc.c:sys_shmctl_broken()).

?

the whole point is to check the value passed in from userspace instead
of forcing a particular value in the kernel, right?

what i'm proposing is:
- don't touch 2.4, glibc can pass in IPC_64 or not, and it will work
  (since the kernel forces something anyway)

- fix glibc to pass in IPC_64 properly into the kernel from now on, 
  2.4 will still work with current hacks.

- fix 2.6 to detect the IPC_64 flag and go through the "normal"
  (arch-indep) path to figure out it should use the new structs

2.6 is broken as it is now, so there's no 2.6 compatibility to worry
about.

did i miss something?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Sun, Nov 02, 2003 at 10:42:00PM +0100, Thomas Bogendoerfer wrote:
> On Sun, Nov 02, 2003 at 10:12:52AM -0800, Randolph Chung wrote:
> > anyway, if we are only supporting IPC_64, then why mask off the IPC64
> > bit in the wrapper? if the ipc/utils.c stuff isn't there, wouldn't it
> > default to doing the right thing when IPC_64 is set?
> 
> look at the switch statements in msg.c/sem.c/shm.c. If you don't mask
> off IPC_64, the cases don't match.
> 
> > right now glibc *doesn't* call the syscall with IPC_64, but i'm about to
> > make it do that again.
> 
> I don't think this is a good idea, because by checking for IPC_64 we
> could see, whether an old glibc is used and could convert structs
> (see sys_parisc.c:sys_shmctl_broken()).

There is no such thing as that "old glibc" we have always had
__ASSUME_IPC64. What support are we looking to preserve?

c.



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</B>=D7=DB=BA=CF=A3=A8=C3=E2=B7=D1=A3=A9&nbsp;&nbsp; <B>=CF=E0=B9=D8=CD=F8=A3=
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&nbsp;<B>=D5=BE=B5=E3=CB=B5=C3=F7=A3=BA<BR></B><BR> &nbsp;&nbsp;&nbsp;=B8=F7=
=CA=BD=B8=F7=D1=F9=B3=C9=C8=CB=CD=BC=C6=AC=CA=D5=B2=D8- =B8=F7=C0=E0=C3=E2=B7=
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Subject: Re: [parisc-linux] what's up with the ipc syscalls?
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On Sun, Nov 02, 2003 at 01:55:28PM -0800, Randolph Chung wrote:
> - fix glibc to pass in IPC_64 properly into the kernel from now on, 
>   2.4 will still work with current hacks.

no, 2.4 will break, because shmctl will try to fixup structs, which
don't need fixing. Please look at the code in sys_parisc.c

> - fix 2.6 to detect the IPC_64 flag and go through the "normal"
>   (arch-indep) path to figure out it should use the new structs

we only have new structs in the sense of ipc/*.c. That old stuff
is older x86 stuff, we never had. The only problem is, that we
had some broken structs, which weren't working on 64bit kernel, because
the alignment was broken.

> 2.6 is broken as it is now, so there's no 2.6 compatibility to worry
> about.

so why no just use the same way, I changed it in 2.4 ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]


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On Sun, Nov 02, 2003 at 05:56:27PM -0500, Carlos O'Donell wrote:
> On Sun, Nov 02, 2003 at 10:42:00PM +0100, Thomas Bogendoerfer wrote:
> > On Sun, Nov 02, 2003 at 10:12:52AM -0800, Randolph Chung wrote:
> > > anyway, if we are only supporting IPC_64, then why mask off the IPC64
> > > bit in the wrapper? if the ipc/utils.c stuff isn't there, wouldn't it
> > > default to doing the right thing when IPC_64 is set?
> > 
> > look at the switch statements in msg.c/sem.c/shm.c. If you don't mask
> > off IPC_64, the cases don't match.
> > 
> > > right now glibc *doesn't* call the syscall with IPC_64, but i'm about to
> > > make it do that again.
> > 
> > I don't think this is a good idea, because by checking for IPC_64 we
> > could see, whether an old glibc is used and could convert structs
> > (see sys_parisc.c:sys_shmctl_broken()).
> 
> There is no such thing as that "old glibc" we have always had
> __ASSUME_IPC64. What support are we looking to preserve?

glibc 2.2.x, some weeks before woody went final. For a closer date
check the date of my sys_parisc.c commit.

Since there might be still binaries in woody, which are compiled
with an such an "old" glibc, we will break this binaries. The suggested
change is an change of the kernel ABI, so I would avoid it. The problem
with this "old" glibc was, that the structs for shmctl and friends
weren't properly aligned for 64bit. I've changed that and also decided
to get rid of IPC_64, because that's x86 crap.

Adding the 2.4 changes to the 2.6 kernel should fix everything.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]


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Subject: Re: [parisc-linux] Re: backport unaligned.c Randolph patch
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Hi Grant,

In fact I didn't discusse of this patch (which effectively remove code) with
Randolph but I back-port in confidence because it remember me a problem I
encounter when I suggest the "traps.c alignement" [1] to Carlos:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2003-October/021229.html>

In the same time I was looking for Sukyo bug in 2.6 and point out that the
previous patch [1] make hang the system in place of the crash (due to a division
by zero).

May be my conclusion was erronious: "force_sig_info() would 'schedule'
a SIGFPE. But in this very particular situation of the early boot, imho the
scheduler is not yet launched." (Right/Wrong?)

Anyway I so suggest another patch:<http://lists.parisc-linux.org/pipermail/parisc-linux/2003-October/021251.html>

; which essentialy bypass force_sig_info() in kernel mode. But I presume
that Carlos don't yet ci this patch because he is looking for a better solution
in that special case (I don't know if it is possible to lauch the scheduler
earlier?).

Thanks in advance for all advise,
    Joel
 


>-- Original Message --
>From: Grant Grundler <grundler@parisc-linux.org>
>To: Randolph Chung <randolph@tausq.org>
>Cc: Joel Soete <soete.joel@tiscali.be>, parisc-linux@parisc-linux.org
>Date: Sat, 1 Nov 2003 12:30:06 -0700
>Subject: Re: [parisc-linux] Re: backport unaligned.c Randolph patch
>
>
>On Sat, Nov 01, 2003 at 09:32:15AM -0800, Randolph Chung wrote:
> I think your mailer munged your patch, it doesn't apply cleanly. i've
> applied a cleaned up version of your patch to 2.4.

Was the intent to add new code?
The patch was reversed it
>seems too.

grant
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Carlos,

Yes it didn't crash anymore :)

But I didn't have more opportunity to reboot severall time this c110 to make
more test (the only difference between the two previous one: the first was
a reboot, the second was a boot? and absolutley no other changes).

Cheers,
    Joel


>-- Original Message --
>From: Carlos O'Donell <carlos@baldric.uwo.ca>
>To: Joel Soete <soete.joel@tiscali.be>
>Cc: parisc-linux@parisc-linux.org
>Date: Sun, 2 Nov 2003 15:22:28 -0500
>Subject: Re: [parisc-linux] evolution (1.4.5-1) 'protection id trap' [was:
>do_page_fault?]
>
>
>On Sat, Nov 01, 2003 at 11:27:20PM +0000, Joel Soete wrote:
> Hi Carlos,
> 
> I don't understand anymore anything.
> 
> This afternoon i recompile k 2.4.23-pre9-pa13 + Randolph patch to test
> it. (Ok)
> 
> So I launch evolution which crash at 
>he same place as usual.
> 
> After the diner I restart this c110 with this new kernel but this time,
> no more "do_page_fault() pid=805 command='evolution' type=7". I restart
> it severall time no means to reproduce anymore :(

So it doesn't cras
> anymore? :) 

c.
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] [PATCH] SuckyIO still doesn't work
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Hi Grant,


> Current patch on ftp.p-l.o:patches/diff-2.6.0-suckyio-serial-03

I apply your patch against 2.6.0-test9-pa4 but not yet boot on the b2k  :(
I stopped at another place now and not any more on a div by zero:
[...]
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
superio_probe(0000:00:0e.0) ven 0x100b dev 0x2 sv 0x0 sd 0x0 class 0x1018a
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 64) 
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
superio_probe: IDE 87415
superio_probe(0000:00:0e.1) ven 0x100b dev 0xe sv 0x0 sd 0x0 class 0x68000
parport0: PC-style at 0x378, irq 101 [PCSPP(,...)]
Registering serial 0
Registering serial 1
superio_probe(0000:00:0e.2) ven 0x100b dev 0x12 sv 0x0 sd 0x0 class 0xc0310
superio_probe: USB OHCI controller
Soft power switch enabled, polling @ 0xf0400804.
pty: 256 Unix98 ptys configured
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at I/O 0x3f8 (irq = 99) is a 16550A
flags= 0 (uart_get_baud_rate() ).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
[...]
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 504k freed
      _______________________________ 
     < Your System ate a SPARC! Gah! >
      ------------------------------- 
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
swapper (pid 1): Breakpoint (code 0)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 103eb800 101f83d8 0000001c
r04-07  00000063 10216a60 00000000 1034e4a4
r08-11  00000002 0098963a 4df21500 10461844
r12-15  3b9aca00 1038f810 10461810 f0400004
r16-19  f00008c4 f000017c f0000174 00000000
r20-23  00000003 00000000 101f8380 1034e4a4
r24-27  000000d3 00000003 10396d28 10378010
r28-31  00000060 1fe5f940 10718580 10107014
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 103ebdbc 103ebdc0
 IIR: 00000000    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 10718000 CR31: 103d1000
 ORIG_R28: 1fe9a48c
 IAOQ[0]: superio_init+0x0/0x410
 IAOQ[1]: superio_init+0x4/0x410
 RP(r2): superio_enable_irq+0x58/0x84
Kernel panic: Attempted to kill init!
 
But I never encounter such do_page_fault().

Thanks in advance for additional help,
    Joel


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From: Christoph Plattner <christoph.plattner@gmx.at>
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Subject: Re: [parisc-linux] Console on HP 9000 E55
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Hello,

I think, you miss an important thing !

I also have an E55 with an MDP panel, the thing having 8xDB25 ports
(8x RS232). This MDP panel has a 9-pin connector as connection to the
E55. So this 9-pin connector seems to be a "high"-speed bus for all
8 serial ports !

So you really need a MDP or DDP panel to connect the up to 16 serial
ports.

I do not know another way ....

BTW, how do you boot the HP-UX ?
Blind ?
Only use is per telnet/rsh after it is up ?

Christoph Plattner



Jean-marc Harang wrote:
> Le Sat, 1 Nov 2003 11:59:59 -0800 (PST)
> Stan Sieler <sieler@allegro.com> a crit:
> 
> 
>>Hi,
>>
>>What card on the HP 9000/E35 are you trying to use with a console port?
>>(And, which connector (and: male/female, round or 9 pin or 25 pin or ?))
>>
>>(I know the questions may be obvious to you, but there are several 
>>possibilities ... knowing which you're trying to do may help me answer you.)
>>
>>
>>>Up to now, the server successfully boots on the original HP-UX. But we have
>>>no access to any console on MDP 9-pin DB9. The other connector called DDP is
>>>not equiped with the patch panel :/. 
>>
>>Yes, I've got an E35 here (running HP-UX).
>>
> 
> 
> I use the APMUX port (the only one on the E55 I/O board), with the cable ref
> A1703-63009. At one end with high-density connector for APMUX and at the other
> ends one DB9 called MDP and something like big centronics called DDP (for the
> patch panel i don't own). So i try the MDP port without result.
> 
> Thanks
> 
> A+
> jm. Harang
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 



-- 
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Subject: [parisc-linux] HP 9000 E55 (and family) status
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By the way, as we discuss on the E55,
what's the status ?

Are there any news on MUX or SCSI driver ?

Are there any news on the NDA, .... ?

Christoph Plattner





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On Mon, Nov 03, 2003 at 09:56:01AM +0100, Thomas Bogendoerfer wrote:
> glibc 2.2.x, some weeks before woody went final. For a closer date
> check the date of my sys_parisc.c commit.

My apologies Thomas I think I begin to see your logic. Now if you follow
me I'll paint a picture.

a. We don't have an IPC multiplexor.
b. We added all such functions into syscalls.list so they would be
   generated as assembly wrappers.
c. Kernel would activate IPC64 for all the calls so it returned IPC64 to
   userspace.

> Since there might be still binaries in woody, which are compiled
> with an such an "old" glibc, we will break this binaries. The suggested
> change is an change of the kernel ABI, so I would avoid it. The problem
> with this "old" glibc was, that the structs for shmctl and friends
> weren't properly aligned for 64bit. I've changed that and also decided
> to get rid of IPC_64, because that's x86 crap.
> 
> Adding the 2.4 changes to the 2.6 kernel should fix everything.

Should an old binary exist with this old glibc, it would break should
the kernel stop activating IPC64.

I agree that the 2.4 changes forward ported will change everything, but
the glibc changes are *also* required so we can eventually turn off the
kernel code that activates IPC64 for all the incoming calls. When we
don't care about these old binaries and old glibc we will remove the
kernel code.

Now it's my turn to ask the question: Did that make any sense? :o)

c.



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Le Mon, 03 Nov 2003 18:01:47 +0100
Christoph Plattner <christoph.plattner@gmx.at> a =E9crit:

> By the way, as we discuss on the E55,
> what's the status ?
>=20
> Are there any news on MUX or SCSI driver ?
>=20
> Are there any news on the NDA, .... ?
>=20
> Christoph Plattner

Hello,

Sorry, I'm a little late.=20

The status is that, as you said before, we need the MDP panel to get access
to the serial console (port 0 of the panel). I'm looking for this panel and=
 i
think i found one ;)=20

After the blind boot, we can't access to the HP-UX. No login is avaible,
because this E55 is a decommissioned one, a "gift" to the local Linux (and =
other
free software) User Group of my town (Toulouse, France).=20

So we need to make a fresh install of HP-UX. That's why we need the serial
console (cdrom boot).=20

thanks for the informations :)

Jean-marc Harang
--
http://www.culte.org


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On Mon, Nov 03, 2003 at 06:01:47PM +0100, Christoph Plattner wrote:
> By the way, as we discuss on the E55,
> what's the status ?
> Are there any news on MUX or SCSI driver ?
> Are there any news on the NDA, .... ?

In Feb/March 2003 I pulled together the documents for SCSI and prepared
the NDA for you. I didn't do anything for the Mux since I really don't
know anything about it.  It took fours monthes for my management (sorry,
I'm somewhat bitter about this) to tell me the process had changed and
I need to talk to run the NDA past an internal HP "review board".

I've not taken the steps to do that becuase I'm saturated
with too many projects. But if E55 still means something to you
(and it sounds like it does), I'll charge this windmill as
well. Pokeme again monthly and I'll let you know if/how far I've
gotten on that.

thanks for you "infinite" patience,
grant


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We don't really need parisc_device->sysdata any more.  This patch
kill off all references to it.  Comments?

Index: drivers/parisc/dino.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/dino.c,v
retrieving revision 1.10
diff -u -p -r1.10 dino.c
--- drivers/parisc/dino.c	10 Oct 2003 16:11:03 -0000	1.10
+++ drivers/parisc/dino.c	5 Nov 2003 02:06:14 -0000
@@ -555,7 +555,7 @@ dino_fixup_bus(struct pci_bus *bus)
         struct dino_device *dino_dev = DINO_DEV(parisc_walk_tree(bus->dev));
 	int port_base = HBA_PORT_BASE(dino_dev->hba.hba_num);
 
-	DBG(KERN_WARNING "%s(0x%p) bus %d sysdata 0x%p\n",
+	DBG(KERN_WARNING "%s(0x%p) bus %d platform_data 0x%p\n",
 			__FUNCTION__, bus, bus->secondary, bus->dev->platform_data);
 
 	/* Firmware doesn't set up card-mode dino, so we have to */
Index: drivers/parisc/lba_pci.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/lba_pci.c,v
retrieving revision 1.5
diff -u -p -r1.5 lba_pci.c
--- drivers/parisc/lba_pci.c	8 Sep 2003 22:00:24 -0000	1.5
+++ drivers/parisc/lba_pci.c	5 Nov 2003 02:14:09 -0000
@@ -701,7 +701,7 @@ lba_fixup_bus(struct pci_bus *bus)
 	struct lba_device *ldev = LBA_DEV(parisc_walk_tree(bus->dev));
 	int lba_portbase = HBA_PORT_BASE(ldev->hba.hba_num);
 
-	DBG("lba_fixup_bus(0x%p) bus %d sysdata 0x%p\n",
+	DBG("lba_fixup_bus(0x%p) bus %d platform_data 0x%p\n",
 		bus, bus->secondary, bus->dev->platform_data);
 
 	/*
Index: drivers/parisc/sba_iommu.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/sba_iommu.c,v
retrieving revision 1.4
diff -u -p -r1.4 sba_iommu.c
--- drivers/parisc/sba_iommu.c	8 Sep 2003 22:00:24 -0000	1.4
+++ drivers/parisc/sba_iommu.c	5 Nov 2003 01:21:20 -0000
@@ -1989,7 +1989,7 @@ sba_driver_callback(struct parisc_device
 		return(1);
 	}
 
-	dev->sysdata = (void *) sba_dev;
+	dev->dev.driver_data = sba_dev;
 	memset(sba_dev, 0, sizeof(struct sba_device));
 
 	for(i=0; i<MAX_IOC; i++)
@@ -2042,7 +2042,7 @@ void __init sba_init(void)
  */
 void * sba_get_iommu(struct parisc_device *pci_hba)
 {
-	struct sba_device *sba = (struct sba_device *) pci_hba->parent->sysdata;
+	struct sba_device *sba = pci_hba->parent->dev.driver_data;
 	char t = pci_hba->parent->id.hw_type;
 	int iocnum = (pci_hba->hw_path >> 3);	/* rope # */
 
Index: include/asm-parisc/parisc-device.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/parisc-device.h,v
retrieving revision 1.1
diff -u -p -r1.1 parisc-device.h
--- include/asm-parisc/parisc-device.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/parisc-device.h	5 Nov 2003 01:21:38 -0000
@@ -7,7 +7,6 @@ struct parisc_device {
 	struct parisc_device *sibling;
 	struct parisc_device *child;
 	struct parisc_driver *driver;	/* Driver for this device */
-	void		*sysdata;	/* Driver instance private data */
 	char		name[80];	/* The hardware description */
 	int		irq;
 
Index: include/asm-parisc/pci.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pci.h,v
retrieving revision 1.2
diff -u -p -r1.2 pci.h
--- include/asm-parisc/pci.h	25 Sep 2003 01:07:21 -0000	1.2
+++ include/asm-parisc/pci.h	5 Nov 2003 02:14:55 -0000
@@ -42,7 +42,7 @@
 **
 ** This is the "common" or "base" data structure which HBA drivers
 ** (eg Dino or LBA) are required to place at the top of their own
-** dev->sysdata structure.  I've heard this called "C inheritance" too.
+** platform_data structure.  I've heard this called "C inheritance" too.
 **
 ** Data needed by pcibios layer belongs here.
 */

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Le mercredi, 5 nov 2003, =E0 01:47 Europe/Paris, Grant Grundler a =E9crit =
:

> On Mon, Nov 03, 2003 at 06:01:47PM +0100, Christoph Plattner wrote:
>> By the way, as we discuss on the E55,
>> what's the status ?
>> Are there any news on MUX or SCSI driver ?
>> Are there any news on the NDA, .... ?
>
> In Feb/March 2003 I pulled together the documents for SCSI and =
prepared
> the NDA for you. I didn't do anything for the Mux since I really don't
> know anything about it.  It took fours monthes for my management=20
> (sorry,
> I'm somewhat bitter about this) to tell me the process had changed and
> I need to talk to run the NDA past an internal HP "review board".

I've asked for a NDA as well (regarding Spifi and other chips,=20
especially
sound), never got any answer. That was about 5 months ago...


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/=



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On Tue, Nov 04, 2003 at 05:47:46PM -0700, Grant Grundler wrote:
> On Mon, Nov 03, 2003 at 06:01:47PM +0100, Christoph Plattner wrote:
> > By the way, as we discuss on the E55,
> > what's the status ?
> > Are there any news on MUX or SCSI driver ?
> > Are there any news on the NDA, .... ?
> 
> In Feb/March 2003 I pulled together the documents for SCSI and prepared
> the NDA for you. I didn't do anything for the Mux since I really don't
> know anything about it.  It took fours monthes for my management (sorry,
> I'm somewhat bitter about this) to tell me the process had changed and
> I need to talk to run the NDA past an internal HP "review board".
> 
> I've not taken the steps to do that becuase I'm saturated
> with too many projects. But if E55 still means something to you
> (and it sounds like it does), I'll charge this windmill as
> well. Pokeme again monthly and I'll let you know if/how far I've
> gotten on that.

Ride forward noble Don Quixote!

c.



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Hi there,

when compiling the parport driver as a module, I get an unresolved 
symbols error:
-----><--------
find kernel -path '*/pcmcia/*' -name '*.o' | xargs -i -r ln -sf ../{} pcmcia
if [ -r System.map ]; then /sbin/depmod -ae -F System.map  2.4.22-pa13; fi
depmod: *** Unresolved symbols in 
/lib/modules/2.4.22-pa13/kernel/drivers/parport/parport_pc.o
depmod:         outsb
depmod:         outsl
depmod:         insb
depmod:         insl
-----><--------
Can s.b. with CVS access add the necessary export symbol lines to 
parport_pc?

Greetings,
    Ruediger




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Subject: [parisc-linux] fdisk problems 2.4 <-> 2.6
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Hi there,

it's me again. I repartioned a IBM-hd with 4330 MB but when running 
fdisk with 2.6.0-test8-pa4, fdisk  told me:

--------><------------
gandalf:~# fdisk /dev/sdb

Befehl (m fr Hilfe): p

Platte /dev/sdb: 40 MByte, 40239104 Byte
134 Kpfe, 62 Sektoren/Spuren, 9 Zylinder
Einheiten = Zylinder von 8308 * 512 = 4253696 Bytes

    Gert Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1           8       33201   f0  Linux/PA-RISC boot
/dev/sdb2               9          23       62310   83  Linux
/dev/sdb3              24          83      249240   82  Linux Swap
/dev/sdb4              84        1019     3888144   8e  Linux LVM

Befehl (m fr Hilfe):
------><-------------

Cause some bytes are missing ;)  I booted 2.4.22-pa13 and fdisk is now 
telling the correct values:

-------><--------
gandalf:~# fdisk /dev/sdb

Befehl (m fr Hilfe): p

Platte /dev/sdb: 4335 MByte, 4335206400 Byte
134 Kpfe, 62 Sektoren/Spuren, 1019 Zylinder
Einheiten = Zylinder von 8308 * 512 = 4253696 Bytes

    Gert Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1           8       33201   f0  Linux/PA-RISC boot
/dev/sdb2               9          23       62310   83  Linux
/dev/sdb3              24          83      249240   82  Linux Swap
/dev/sdb4              84        1019     3888144   8e  Linux LVM

Befehl (m fr Hilfe): q

gandalf:~#
----------><--------

I have a 715/100 with 128 MB, a 2GB Seagate and a 4GB IBM-HD.
With my 2GB fdisk seems to have no problem:
------>2.6.0-test8-pa4<---------
gandalf:~# fdisk /dev/sda

Befehl (m fr Hilfe): p

Platte /dev/sda: 2147 MByte, 2147678720 Byte
67 Kpfe, 62 Sektoren/Spuren, 1009 Zylinder
Einheiten = Zylinder von 4154 * 512 = 2126848 Bytes

    Gert Boot      Start         End      Blocks   Id  System
/dev/sda1               1          11       22816   f0  Linux/PA-RISC boot
/dev/sda2              12          32       43617   83  Linux
/dev/sda3              33          96      132928   82  Linux Swap
/dev/sda4              97        1009     1896301   83  Linux

Befehl (m fr Hilfe):
-----><-----------
----->2.4.22-pa13<----------
gandalf:~# fdisk /dev/sda

Befehl (m fr Hilfe): p

Platte /dev/sda: 2147 MByte, 2147678720 Byte
67 Kpfe, 62 Sektoren/Spuren, 1009 Zylinder
Einheiten = Zylinder von 4154 * 512 = 2126848 Bytes

    Gert Boot      Start         End      Blocks   Id  System
/dev/sda1               1          11       22816   f0  Linux/PA-RISC boot
/dev/sda2              12          32       43617   83  Linux
/dev/sda3              33          96      132928   82  Linux Swap
/dev/sda4              97        1009     1896301   83  Linux

Befehl (m fr Hilfe):
----------><----------

Anybody encounter the same problems with fdisk?

Greetings,
    Ruediger



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Don't worry about the "delay", I also have much to do,
and we can hope, that the E55 will not become "out of
interest" for me ...

I know the problem with "organizational overhead" and
I understand the problem.

I only was interested, if there are any news, if there
are new fixes in the driver, etc, etc, ...

Christoph


Grant Grundler wrote:
> On Mon, Nov 03, 2003 at 06:01:47PM +0100, Christoph Plattner wrote:
> 
>>By the way, as we discuss on the E55,
>>what's the status ?
>>Are there any news on MUX or SCSI driver ?
>>Are there any news on the NDA, .... ?
> 
> 
> In Feb/March 2003 I pulled together the documents for SCSI and prepared
> the NDA for you. I didn't do anything for the Mux since I really don't
> know anything about it.  It took fours monthes for my management (sorry,
> I'm somewhat bitter about this) to tell me the process had changed and
> I need to talk to run the NDA past an internal HP "review board".
> 
> I've not taken the steps to do that becuase I'm saturated
> with too many projects. But if E55 still means something to you
> (and it sounds like it does), I'll charge this windmill as
> well. Pokeme again monthly and I'll let you know if/how far I've
> gotten on that.
> 
> thanks for you "infinite" patience,
> grant
> 
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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Xref: news.gmane.org gmane.linux.ports.parisc:20001

You are also interested in SPIFI ?
That's good, so we can build up a small team developing
on it   :-)

Christoph


Thibaut VARNE wrote:
> 
> Le mercredi, 5 nov 2003,  01:47 Europe/Paris, Grant Grundler a crit :
> 
>> On Mon, Nov 03, 2003 at 06:01:47PM +0100, Christoph Plattner wrote:
>>
>>> By the way, as we discuss on the E55,
>>> what's the status ?
>>> Are there any news on MUX or SCSI driver ?
>>> Are there any news on the NDA, .... ?
>>
>>
>> In Feb/March 2003 I pulled together the documents for SCSI and prepared
>> the NDA for you. I didn't do anything for the Mux since I really don't
>> know anything about it.  It took fours monthes for my management (sorry,
>> I'm somewhat bitter about this) to tell me the process had changed and
>> I need to talk to run the NDA past an internal HP "review board".
> 
> 
> I've asked for a NDA as well (regarding Spifi and other chips, especially
> sound), never got any answer. That was about 5 months ago...
> 
> 
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://pateam.esiee.fr/
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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Subject: [parisc-linux] touch fails on hppa because utimes is the devil.
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r,

touch failing is all about the configure.

readelf -a src/touch | grep utime
00027600  00000581 R_PARISC_IPLT     00000000   utime + 0
     5: 00000000    76 FUNC    GLOBAL DEFAULT  UND utime@GLIBC_2.2 (2)
   123: 00000000    76 FUNC    GLOBAL DEFAULT  UND utime@@GLIBC_2.2
   203: 00014ca0    48 FUNC    GLOBAL DEFAULT   11 utimens

readelf -a /usr/bin/touch | grep utime
000274c0  00000581 R_PARISC_IPLT     00000000   utime + 0
00027500  00000e81 R_PARISC_IPLT     00000000   utimes + 0
     5: 00000000    68 FUNC    GLOBAL DEFAULT  UND utime@GLIBC_2.2 (2)
    14: 00000000   232 FUNC    GLOBAL DEFAULT  UND utimes@GLIBC_2.2 (2)

In the newly built touch we don't use "utimes"
So I dug a bit:

configure:27240: checking determine whether the utimes function works
configure:27282: hppa-linux-gcc -o conftest -g -DSYSLOG_SUCCESS
-DSYSLOG_FAILURE -DSYSLOG_NON_ROOT -O2   conftest.c  >&5
configure:27285: $? = 0
configure:27287: ./conftest
configure:27290: $? = 1
configure: program exited with status 1
configure: failed program was:
...
configure:27304: result: no

Sombody should sick themselves on this failure? Takers? :)

c.



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--EB..340C386EFC6189EC555--



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Hi all,
 
this day i installed woody on a J5000.
Now I'm at the point to set up the Xserver and here i run into troubles.
What XServer should i run/use to get my FXe working?
 
 
Kind regards,
 
Philipp 


------_=_NextPart_001_01C3A477.32FCAEF0
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<TITLE>Message</TITLE>

<META content="MSHTML 5.00.3700.6699" name=GENERATOR></HEAD>
<BODY>
<DIV><FONT face=Arial size=2><SPAN class=046135914-06112003>Hi 
all,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN 
class=046135914-06112003></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2><SPAN class=046135914-06112003>this day i installed 
woody on a J5000.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=046135914-06112003>Now I'm at the point 
to set up the Xserver and here i run into troubles.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=046135914-06112003>What XServer should 
i run/use to get my FXe working?</SPAN></FONT></DIV><FONT face=Arial size=2>
<DIV align=left class=OutlookMessageHeader dir=ltr lang=en-us>&nbsp;</DIV>
<DIV align=left class=OutlookMessageHeader dir=ltr lang=en-us><FONT 
face=Tahoma><FONT color=#0000ff><FONT size=2><FONT face=Arial><SPAN 
class=218391508-04112003></SPAN></FONT></FONT></FONT></FONT>&nbsp;</DIV>
<DIV align=left class=OutlookMessageHeader dir=ltr lang=en-us><FONT 
face=Tahoma><FONT color=#0000ff><FONT size=2><FONT face=Arial><SPAN 
class=218391508-04112003><FONT color=#000000 face=Tahoma>Kind 
regards,</FONT></SPAN></FONT></FONT></FONT></FONT></DIV>
<DIV align=left class=OutlookMessageHeader dir=ltr lang=en-us><FONT 
face=Tahoma><FONT color=#0000ff><FONT size=2><FONT face=Arial><SPAN 
class=218391508-04112003></SPAN></FONT></FONT></FONT></FONT>&nbsp;</DIV>
<DIV align=left class=OutlookMessageHeader dir=ltr lang=en-us><FONT 
face=Tahoma><FONT color=#0000ff><FONT size=2><FONT face=Arial><SPAN 
class=218391508-04112003><FONT color=#000000 
face=Tahoma>Philipp</FONT>&nbsp;</SPAN><BR></DIV></FONT></FONT></FONT></FONT></FONT></BODY></HTML>

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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] getting FXe work
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On Thu, Nov 06, 2003 at 04:03:55PM +0100, TIMMALOG,PHILIPP (HP-Germany,ex1) wrote:
> Hi all,
>  
> this day i installed woody on a J5000.
> Now I'm at the point to set up the Xserver and here i run into troubles.
> What XServer should i run/use to get my FXe working?

HPUX X11 server is the only one that support FX cards.
And no, it doesn't run under parisc-linux.

sorry,
grant

>  
>  
> Kind regards,
>  
> Philipp 
> 


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Subject: RE: [parisc-linux] getting FXe work
Date: Thu, 6 Nov 2003 16:57:31 +0100
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Hi all,

it thought, that only the FX-2,4,10 cards are not working under
parisc-linux?!?


Kind regards,

Philipp


From: Grant Grundler [mailto:grundler@parisc-linux.org] 
Sent: Donnerstag, 6. November 2003 16:54


On Thu, Nov 06, 2003 at 04:03:55PM +0100, TIMMALOG,PHILIPP (HP-Germany,ex1)
wrote:
> Hi all,
>  
> this day i installed woody on a J5000.
> Now I'm at the point to set up the Xserver and here i run into 
> troubles. What XServer should i run/use to get my FXe working?

HPUX X11 server is the only one that support FX cards.
And no, it doesn't run under parisc-linux.

sorry,
grant

>  
>  
> Kind regards,
>  
> Philipp
> 


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Subject: Re: [parisc-linux] Unresolved symbols in 2.4.22-pa13
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On Wed, Nov 05, 2003 at 09:01:01PM +0100, Ruediger Scholz wrote:
> when compiling the parport driver as a module, I get an unresolved 
> symbols error:
> -----><--------
> find kernel -path '*/pcmcia/*' -name '*.o' | xargs -i -r ln -sf ../{} pcmcia
> if [ -r System.map ]; then /sbin/depmod -ae -F System.map  2.4.22-pa13; fi
> depmod: *** Unresolved symbols in 
> /lib/modules/2.4.22-pa13/kernel/drivers/parport/parport_pc.o
> depmod:         outsb
> depmod:         outsl
> depmod:         insb
> depmod:         insl
> -----><--------
> Can s.b. with CVS access add the necessary export symbol lines to 
> parport_pc?

I'm confused.

$ find arch/parisc -type f |xargs grep insb
arch/parisc/kernel/parisc_ksyms.c:EXPORT_SYMBOL(insb);
arch/parisc/lib/io.c:void insb (unsigned long port, void *dst, unsigned long count)

Did you perhaps configure ISA and PCI out but parport_pc in?  If so ...
user error.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Thu, Nov 06, 2003 at 04:57:31PM +0100, TIMMALOG,PHILIPP (HP-Germany,ex1) wrote:
> Hi all,
> 
> it thought, that only the FX-2,4,10 cards are not working under
> parisc-linux?!?

No, only the Vis-EG and earlier cards are supported (and even then,
only via the fb driver).

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Thu, 2003-11-06 16:20:55 +0000, Matthew Wilcox <willy@debian.org>
wrote in message <20031106162055.GA26869@parcelfarce.linux.theplanet.co.uk>:
> On Wed, Nov 05, 2003 at 09:01:01PM +0100, Ruediger Scholz wrote:

> Did you perhaps configure ISA and PCI out but parport_pc in?  If so ...
> user error.

Kconfig dependancy error.

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
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On Thu, Nov 06, 2003 at 09:57:06PM +0100, Jan-Benedict Glaw wrote:
> On Thu, 2003-11-06 16:20:55 +0000, Matthew Wilcox <willy@debian.org>
> wrote in message <20031106162055.GA26869@parcelfarce.linux.theplanet.co.uk>:
> > On Wed, Nov 05, 2003 at 09:01:01PM +0100, Ruediger Scholz wrote:
> 
> > Did you perhaps configure ISA and PCI out but parport_pc in?  If so ...
> > user error.
> 
> Kconfig dependancy error.

This is 2.4.  I'm not touching that config mess.

Shortly before receiving your message, I looked at it in 2.6 (which is
worth fixing).  My initial thought is:

@@ -34,7 +34,7 @@ config PARPORT
 
 config PARPORT_PC
        tristate "PC-style hardware"
-       depends on PARPORT && (!SPARC64 || PCI)
+       depends on PARPORT && (!(SPARC64 || PARISC) || PCI)
        ---help---
          You should say Y here if you have a PC-style parallel port. All
          IBM PC compatible computers and some Alphas have PC-style

But perhaps that should be:

	depends on PARPORT && (!SPARC64 || PCI) && (!PARISC || SUPERIO)

Comments?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Wed, Nov 05, 2003 at 09:21:14PM +0100, Ruediger Scholz wrote:
> it's me again. I repartioned a IBM-hd with 4330 MB but when running 
> fdisk with 2.6.0-test8-pa4, fdisk  told me:
> 
> --------><------------
> gandalf:~# fdisk /dev/sdb
> 
> Befehl (m fr Hilfe): p
> 
> Platte /dev/sdb: 40 MByte, 40239104 Byte

Oh oh.  We have an interesting problem here.

> Platte /dev/sdb: 4335 MByte, 4335206400 Byte

4335206400 - 4294967296 = 40239104

So we've lost the top 32 bits of the value.  Can you run it under strace
and tell me what ioctls fdisk is calling?  I bet it's calling BLKGETSIZE64
and our put_user() is broken.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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I know you might have received letter like this from internet and it came to you as a joke or game=2C but it real and legal which i need your urgent response on this matter=2E 
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Please direct your reply through this email address =3A emma12ng=40netzero=2Ecom =3Cmailto=3Aemma12ng=40netzero=2Ecom=3E if you are Dear 
interest to enable us discuss further=2E YourFaithfully=2C 
Barrister Emmanuel Chigoziri =28Esq=2E=29=2E 




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Subject: [parisc-linux] pppd on 2.4.22-pa13
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Hi,

I was having some problems with pppd:

Nov  6 10:13:03 tomawak kernel: sys32_ioctl: Unknown cmd fd(7)
cmd(40047437) arg(00081cf0)

and I was unable to launch an adsl session.

I've found a solution and I've patched my kernel with:

*** arch/parisc/kernel/ioctl32.c.old    Thu Nov  6 10:18:21 2003
--- arch/parisc/kernel/ioctl32.c        Thu Nov  6 10:18:52 2003
***************
*** 3176,3181 ****
--- 3176,3182 ----
  COMPATIBLE_IOCTL(PPPIOCCONNECT)
  COMPATIBLE_IOCTL(PPPIOCDISCONN)
  COMPATIBLE_IOCTL(PPPIOCATTCHAN)
+ COMPATIBLE_IOCTL(PPPIOCGCHAN)
  /* PPPOX */
  COMPATIBLE_IOCTL(PPPOEIOCSFWD);
  COMPATIBLE_IOCTL(PPPOEIOCDFWD);

Maybe it will be usefull to apply this to sources?

Best regards,

Nicolas JULIEN.



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Applied to kernel 2.4.22-pa14.

Thanks!


On Friday 07 November 2003 10:52, Nicolas JULIEN wrote:
> Hi,
>
> I was having some problems with pppd:
>
> Nov  6 10:13:03 tomawak kernel: sys32_ioctl: Unknown cmd fd(7)
> cmd(40047437) arg(00081cf0)
>
> and I was unable to launch an adsl session.
>
> I've found a solution and I've patched my kernel with:
>
> *** arch/parisc/kernel/ioctl32.c.old    Thu Nov  6 10:18:21 2003
> --- arch/parisc/kernel/ioctl32.c        Thu Nov  6 10:18:52 2003
> ***************
> *** 3176,3181 ****
> --- 3176,3182 ----
>   COMPATIBLE_IOCTL(PPPIOCCONNECT)
>   COMPATIBLE_IOCTL(PPPIOCDISCONN)
>   COMPATIBLE_IOCTL(PPPIOCATTCHAN)
> + COMPATIBLE_IOCTL(PPPIOCGCHAN)
>   /* PPPOX */
>   COMPATIBLE_IOCTL(PPPOEIOCSFWD);
>   COMPATIBLE_IOCTL(PPPOEIOCDFWD);
>
> Maybe it will be usefull to apply this to sources?
>
> Best regards,
>
> Nicolas JULIEN.


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On Thu, 2003-11-06 22:24:16 +0000, Matthew Wilcox <willy@debian.org>
wrote in message <20031106222416.GI26869@parcelfarce.linux.theplanet.co.uk>:
> On Thu, Nov 06, 2003 at 09:57:06PM +0100, Jan-Benedict Glaw wrote:
> > On Thu, 2003-11-06 16:20:55 +0000, Matthew Wilcox <willy@debian.org>
> > wrote in message <20031106162055.GA26869@parcelfarce.linux.theplanet.co=
=2Euk>:
> > > On Wed, Nov 05, 2003 at 09:01:01PM +0100, Ruediger Scholz wrote:
> @@ -34,7 +34,7 @@ config PARPORT
> =20
>  config PARPORT_PC
>         tristate "PC-style hardware"
> -       depends on PARPORT && (!SPARC64 || PCI)
> +       depends on PARPORT && (!(SPARC64 || PARISC) || PCI)

This excludes certain possibilities. I'd go the other way...

>         ---help---
>           You should say Y here if you have a PC-style parallel port. All
>           IBM PC compatible computers and some Alphas have PC-style
>=20
> But perhaps that should be:
>=20
> 	depends on PARPORT && (!SPARC64 || PCI) && (!PARISC || SUPERIO)

parport_pc uses inb/outb so I'd let it depend on busses that are capable
of allowing inb/outb:

	depends on PARPORT && (ISA || PCI || SUPERIO)

- ISA parport adaptors exist, either as build-in or as real ISA cards.
- There are PCI parport controllers
- SUPERIO seeme to be capable of doing parport_pc (I haven't used
  that...)

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
   ret =3D do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TC=
PA));

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MR=2E WILLIAMS LAWAL                    
PACIFIC BANK OF SOUTH AFRICA=2C 
9TH FLOOR=2C HEERENGRACHT TOWER=2C 
STANDARD BANK CENTER=2C 
CAPE TOWN=2C SOUTH AFRICA=2E 


DEAR SIR=2C

I am Mr Williams Lawal=2C the Branch Manager Pacific Bank of South Africa=2C Cape Town =2EI have urgent and very confidential business proposition for you=2E 

On June 6=2C1999=2C an American Oil consultant=2Fcontractor with the South Africa Mining Corporation=2C Mr=2E Charles Anderson made a numbered time =28Fixed=29 Deposit for twelve calendar months=2C valued at US$20=2C000=2C000=2E00 =28Twenty Million Dollars=29 in my branch=2EUpon maturity=2C I sent a routine notification to his forwarding address but got no reply=2EAfter a month=2C we sent a reminder and finally we discovered from his contract employers=2C the South Africa Mining Corporation that Mr=2E Charles Anderson died from an automobile accident=2E On further  investigation=2C I found out that he died without making a WILL=2C and all attempts to trace his next of kin was fruitless=2E 
  I therefore made further investigation and discovered that Mr=2E Charles Anderson did not declare any kin or relations in all his official documents=2C including his Bank Deposit paperwork in my Bank=2E This sum of US$20=2C000=2C000=2E00 is still sitting in my Bank and the interest is being rolled over with the principal sum at the end of each year=2E  No one 
will ever come forward to claim it=2E  According to South Africa Law=2C at the expiration of 5 =28five=29 years=2C the money will revert to the ownership of the South Africa Government if nobody applies to claim the fund=2E 
  Consequently=2C my proposal is that I will like you as a foreigner to stand in as the next of kin to Mr=2E Charles Anderson so that the fruits of this old man's labour will not get into the hands of some corrupt government officials=2E  This is simple=2C I will like you to provide immediately your full names and address so that the Attorney will prepare the necessary documents and affidavits which will put you in place as the next of kin=2E  We shall employ the service of two Attorneys for drafting and notarization of the WILL and to obtain the necessary documents and letter of probate=2Fadministration in your favour for the transfer=2E  A bank account in any part of the world which you will provide will then facilitate the transfer of this money to you as the beneficiary=2Fnext of kin=2
 E The money will be paid into your account for us to share in the ratio of 70% for me and 30% for you=2E 

There is no risk at all as all the paperwork for this transaction will be done by the Attorney and my position as the Branch Manager guarantees the successful execution of this transaction=2E If you are interested=2C please reply immediately via the private email address williamslawal111=40uboot=2Ecom=2E Upon your response=2C I shall then provide you with more details and relevant documents that will help you understand the transaction=2E 
    Please observe utmost confidentiality=2C and rest assured that this transaction would be most profitable for both of us because I shall require your assistance to invest my share in your country=2E 

Awaiting your urgent reply via a return email 


Thanks and regards=2E 

Mr=2E Williams Lawal
williamslawal111=40uboot=2Ecom  




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> [...] I bet it's calling BLKGETSIZE64 and our put_user() is broken.

I trusted that Grant merged the same code in 2.4 and 2.6 for put_user() some
time ago?

Is it the same with 64bits kernels?

hth,
    Joel


-------------------------------------------------------------------------
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Xref: news.gmane.org gmane.linux.ports.parisc:20019

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Matthew Wilcox schrieb:

>So we've lost the top 32 bits of the value.  Can you run it under strace
>and tell me what ioctls fdisk is calling?  I bet it's calling BLKGETSIZE64
>and our put_user() is broken.
>
Yes, it's calling BLKGETSIZE64... Full Output of 'strace fdisk' is attached.

Greetings,
    Ruediger

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gandalf:~# strace fdisk /dev/sdb
execve("/sbin/fdisk", ["fdisk", "/dev/sdb"], [/* 14 vars */]) = 0
newuname({sys="Linux", node="gandalf", ...}) = 0
brk(0)                                  = 0x3a000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40018000
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 35026, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40019000
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\1\365"..., 512) = 512
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 1446800, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40029000
mprotect(0x40172000, 99216, PROT_NONE)  = 0
mmap(0x40181000, 32768, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0x148000) = 0x40181000
mmap(0x40189000, 5008, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40189000
close(3)                                = 0
munmap(0x40019000, 35026)               = 0
open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap2(NULL, 1860304, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4018b000
close(3)                                = 0
brk(0)                                  = 0x3a000
brk(0x5b000)                            = 0x5b000
brk(0)                                  = 0x5b000
open("/dev/sdb", O_RDWR|O_LARGEFILE)    = 3
read(3, "\200\0PALO\0\3\0\4\200\0\0)\323\375\0\0\0\0\0\0\0\0002"..., 512) = 512
newuname({sys="Linux", node="gandalf", ...}) = 0
ioctl(3, BLKSSZGET, 0xfaf004c8)         = 0
fstat64(3, {st_mode=0, st_size=6, ...}) = 0
ioctl(3, 0x301, 0xfaf004c8)             = 0
ioctl(3, BLKGETSIZE64, 0xfaf00530)      = 0
_llseek(3, 0, [0], SEEK_SET)            = 0
read(3, "\200\0PALO\0\3\0\4\200\0\0)\323\375\0\0\0\0\0\0\0\0002"..., 8192) = 8192
fstat64(1, {st_mode=0, st_size=5, ...}) = 0
ioctl(1, 0x40245410, {B9600 opost isig icanon echo ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
write(1, "\n", 1
)                       = 1
open("/usr/share/locale/locale.alias", O_RDONLY) = 4
fstat64(4, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001a000
read(4, "# Locale name alias data base.\n#"..., 4096) = 2539
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0x4001a000, 4096)                = 0
open("/usr/share/locale/de_DE@euro/LC_MESSAGES/util-linux.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/de@euro/LC_MESSAGES/util-linux.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/de_DE/LC_MESSAGES/util-linux.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/de/LC_MESSAGES/util-linux.mo", O_RDONLY) = 4
fstat64(4, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 163630, PROT_READ, MAP_PRIVATE, 4, 0) = 0x40352000
close(4)                                = 0
open("/usr/lib/gconv/gconv-modules.cache", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/lib/gconv/gconv-modules", O_RDONLY) = 4
fstat64(4, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001a000
read(4, "# GNU libc iconv configuration.\n"..., 4096) = 4096
read(4, ".B1.002//\nalias\tJS//\t\t\tJUS_I.B1."..., 4096) = 4096
read(4, "859-3\t1\nmodule\tINTERNAL\t\tISO-885"..., 4096) = 4096
read(4, "9-14//\nalias\tLATIN8//\t\tISO-8859-"..., 4096) = 4096
read(4, "CSEBCDICES//\t\tEBCDIC-ES//\nalias\t"..., 4096) = 4096
read(4, "IBM284//\nalias\tEBCDIC-CP-ES//\t\tI"..., 4096) = 4096
read(4, "ias\t864//\t\t\tIBM864//\nalias\tCSIBM"..., 4096) = 4096
read(4, "\tIBM937\t\t1\nmodule\tINTERNAL\t\tIBM9"..., 4096) = 4096
read(4, "UC-JP//\nmodule\tEUC-JP//\t\tINTERNA"..., 4096) = 4096
read(4, "143IECP271//\tIEC_P27-1//\nalias\tI"..., 4096) = 4096
read(4, "\nmodule\tINTERNAL\t\tISO_10367-BOX/"..., 4096) = 4096
read(4, "\t\tto\t\t\tmodule\t\tcost\nmodule\tShift"..., 4096) = 222
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0x4001a000, 4096)                = 0
open("/usr/lib/gconv/ISO8859-15.so", O_RDONLY) = 4
read(4, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\7"..., 512) = 512
fstat64(4, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 73040, PROT_READ|PROT_EXEC, MAP_PRIVATE, 4, 0) = 0x4037a000
mprotect(0x4037c000, 64848, PROT_NONE)  = 0
mmap(0x4038b000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 4, 0x1000) = 0x4038b000
close(4)                                = 0
write(1, "Befehl (m f\374r Hilfe): ", 22Befehl (m fr Hilfe): ) = 22
fstat64(0, {st_mode=0, st_size=5, ...}) = 0
ioctl(0, 0x40245410, {B9600 opost isig icanon echo ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001a000
read(0, p
"p\n", 4096)                    = 2
write(1, "\n", 1
)                       = 1
write(1, "Platte /dev/sdb: 40 MByte, 40239"..., 41Platte /dev/sdb: 40 MByte, 40239104 Byte
) = 41
write(1, "134 K\366pfe, 62 Sektoren/Spuren, 9"..., 42134 Kpfe, 62 Sektoren/Spuren, 9 Zylinder
) = 42
write(1, "Einheiten = Zylinder von 8308 * "..., 53Einheiten = Zylinder von 8308 * 512 = 4253696 Bytes

) = 53
write(1, "    Ger\344t Boot      Start       "..., 63    Gert Boot      Start         End      Blocks   Id  System
) = 63
write(1, "/dev/sdb1   *           1       "..., 75/dev/sdb1   *           1           8       33201   f0  Linux/PA-RISC boot
) = 75
write(1, "/dev/sdb2               9       "..., 62/dev/sdb2               9          23       62310   83  Linux
) = 62
write(1, "/dev/sdb3              24       "..., 67/dev/sdb3              24          83      249240   82  Linux Swap
) = 67
write(1, "/dev/sdb4              84       "..., 66/dev/sdb4              84        1019     3888144   8e  Linux LVM
) = 66
write(1, "\n", 1
)                       = 1
write(1, "Befehl (m f\374r Hilfe): ", 22Befehl (m fr Hilfe): ) = 22
read(0, q
"q\n", 4096)                    = 2
close(3)                                = 0
write(1, "\n", 1
)                       = 1
munmap(0x40019000, 4096)                = 0
exit(0)                                 = ?
gandalf:~#

--------------060009030406010801000901--



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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Allow palo partition to be mounted as ext2
Date: 07 Nov 2003 19:13:55 -0600
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Cc: PARISC list <parisc-linux@lists.parisc-linux.org>
To: Paul Bame <bame@riverrock.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:20020

It can be a bit of a pain having both a palo partition and a /boot
partition on the root disc (and both < 2GB), so this patch allows the
palo partition to be mounted as an ordinary ext2/ext3 filesystem
(ideally as /boot).

It does this by creating an ext2/3 filesystem in the palo partition but
leaving a hole for the iplboot program (by telling the filesystem the
blocks are bad).  The kernels can be booted from this filesystem by
specifying 0/ as the partition as usual.

Attached is a preliminary patch for you to see what you think.

Ultimately, it should mean we can get palo to operate much more like
grub (using a palo.conf file within the palo partition itself for
instance).

The diffs are against the palo cvs tree.

James

Index: ipl/ipl.c
===================================================================
RCS file: /var/cvs/palo/ipl/ipl.c,v
retrieving revision 1.32
diff -u -r1.32 ipl.c
--- ipl/ipl.c	13 Jan 2003 19:41:24 -0000	1.32
+++ ipl/ipl.c	8 Nov 2003 01:05:54 -0000
@@ -252,7 +252,7 @@
     int blocked_bootdev;
     int bootdev;
     int wide;
-    int kern_part, rd_part, i;
+    int kern_part, rd_part, i, ext2 = 0, f0;
     char kern_name[128], rd_name[128];
     char kern_fullname[128];
 
@@ -294,6 +294,11 @@
     printf("\n%s contains:\n",
 	partitioned ? "PALO(F0) partition" : "Boot image");
 
+    if(partitioned && f.version >= 4 && (f.flags & PFLAG_EXT2)) {
+	printf("PALO is formatted EXT2/3\n");
+	ext2 = 1;
+    }
+
     if (f.version < 3 && f.kern32_sz > 0)
     {
 	printf("    0/vmlinux %d bytes @ 0x%x\n", f.kern32_sz, f.kern32_offset);
@@ -392,16 +397,23 @@
     {
 	if (partition[i].id == 0xf0)
 	{
-	    if (kern_part == i + 1)
+	    f0 = i + 1;
+	    if (kern_part == f0)
 		kern_part = 0;
 
-	    if (rd_part == i + 1)
+	    if (rd_part == f0)
 		rd_part = 0;
 
 	    break;
 	}
     }
 
+    if (ext2 && kern_part == 0) {
+	kern_part = f0;
+	if(rd_part == 0)
+	    rd_part = f0;
+    }
+
     if (kern_part > 0 && !partitioned)
     {
 	printf("ERROR: Requesting kernel from partition %d "
@@ -507,7 +519,7 @@
 	struct diskpartition *pp;
 
 	if (kern_part >= MAXPARTS || 
-	    (partition[kern_part - 1].id != 0x83 && partition[kern_part - 1].id != 0xfd) )
+	    (partition[kern_part - 1].id != 0x83 && partition[kern_part - 1].id != 0xfd && partition[kern_part - 1].id != 0xf0) )
 	{
 	    printf("ERROR: Partition %d must be ext2\n", kern_part);
 	    while(1);
Index: lib/common.h
===================================================================
RCS file: /var/cvs/palo/lib/common.h,v
retrieving revision 1.24
diff -u -r1.24 common.h
--- lib/common.h	14 Jan 2003 20:32:44 -0000	1.24
+++ lib/common.h	8 Nov 2003 01:05:55 -0000
@@ -11,7 +11,7 @@
 #include <asm/byteorder.h>
 #include <linux/genhd.h>
 
-#define PALOVERSION "1.2"
+#define PALOVERSION "1.3"
 
 /* size of I/O block used in HP firmware */
 #define FW_BLOCKSIZE	2048
@@ -28,9 +28,10 @@
  * kern_sz = 0 or rd_sz = 0 means no kern or ramdisk respectively.
  */
 #define PALOMAGIC "PALO"
-#define PALOHDRVERSION 3
+#define PALOHDRVERSION 4
 
 #define PFLAG_INSTALL 0x1
+#define PFLAG_EXT2    0x2
 
 struct firstblock
 {
Index: palo/error.c
===================================================================
RCS file: /var/cvs/palo/palo/error.c,v
retrieving revision 1.6
diff -u -r1.6 error.c
--- palo/error.c	14 Jun 2001 19:39:58 -0000	1.6
+++ palo/error.c	8 Nov 2003 01:05:55 -0000
@@ -83,6 +83,13 @@
 	/* 17 */
 	"Too many of the same type of kernel.  %s is either the second\n"
 	"32-bit kernel or the second 64-bit one.\n",
+
+	/* 18 */
+	"For formatted palo partitions, you cannot specify a kernel\n"
+	"or a ramdisk.\n",
+
+	/* 19 */
+	"mke2fs failed."
 };
 
 #define NMESSAGES (sizeof errormessages / sizeof errormessages[0])
Index: palo/palo.c
===================================================================
RCS file: /var/cvs/palo/palo/palo.c,v
retrieving revision 1.16
diff -u -r1.16 palo.c
--- palo/palo.c	6 Aug 2002 15:22:14 -0000	1.16
+++ palo/palo.c	8 Nov 2003 01:05:56 -0000
@@ -17,6 +17,8 @@
 #include <string.h>
 #include <ctype.h>
 #include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/wait.h>
 #if LONG_OPTIONS
 # define _GNU_SOURCE
 # include <getopt.h>
@@ -30,6 +32,7 @@
 static const char Id[] = "$Id: palo.c,v 1.12.4.1 2001/06/13 03:13:17 bame Exp $";
 
 static int Install = 0;
+int verbose = 0;
 
 /* compute the sum of words in an 4-byte aligned region */
 int
@@ -39,7 +42,7 @@
     int *x = (int *)p;
     int i;
 
-    if (0) printf("checksum(%p, %u) = ", p, len);
+    if (verbose) printf("checksum(%p, %u) = ", p, len);
     len /= 4;
 
     for (i = 0; i < len; i++)
@@ -47,7 +50,7 @@
 	xsum += B32(x[i]);
     }
 
-    if (0) printf("0x%08x\n", xsum);
+    if (verbose) printf("0x%08x\n", xsum);
 
     return (xsum);
 }
@@ -74,7 +77,7 @@
     int xsum;
     unsigned int *ipl;
 
-    if (0) printf("check_bootloader %d\n", line);
+    if (verbose) printf("check_bootloader %d\n", line);
 
     STRUCTREAD(media, f, 0);
 
@@ -173,9 +176,11 @@
 	error(12);
 
     /* make sure max size boot loader would fit */
-    if (where + MAXBLSIZE >= f0end)
+    if (where + MAXBLSIZE > f0end) {
+	printf("where %d, where+MAX=%d f0end=%d\n",
+	       where, where + MAXBLSIZE, f0end);
 	error(9);
-
+    }
     /* load the boot loader into RAM */
     rblsize = fsize(bootloader);
     assert((rblsize % FW_BLOCKSIZE) == 0);
@@ -425,6 +430,98 @@
 
 #define KSIZE (2 * 1024 * 1024)
 
+/* Blocksize for the ext2/3 fs in the palo partition */
+#define EXT2_BLOCKSIZE	1024
+
+/* size in ext2 blocks of hole for bootloader */
+#define EXT2_HOLE	((MAXBLSIZE + 1) / EXT2_BLOCKSIZE)
+
+/* offset in bytes before start of hole,  ext2 doesn't allow holes at
+ * to cover the first four blocks of the filesystem */
+#define EXT2_OFFSET	(4*EXT2_BLOCKSIZE)
+
+void
+do_formatted(int init, int media, const char *medianame, int partition,
+	     int f0start, int f0length, int bootloaderfd, int do_format,
+	     const char *commandline)
+{
+    char partitionname[256];
+    struct firstblock f;
+    int partitionfd;
+
+    /* FIXME: assuming we can simply add the partition to the end
+     * of the whole disc device isn't always true */
+    snprintf(partitionname, sizeof(partitionname), "%s%d", medianame,
+	     partition);
+
+    if ((partitionfd = open(partitionname, O_RDWR)) < 0) {
+	perror(partitionname);
+	exit(1);
+    }
+    close(partitionfd);
+
+    if (init) {
+	/* make the bootloader align at 256k */
+	unsigned int holestart = (f0start + 0x3ffff + EXT2_OFFSET) & ~0x3ffff;
+	unsigned int partition_offset = holestart - f0start;
+	char badblockfilename[256];
+	int fd, i;
+	char cmd[512];
+
+	if (verbose)
+	    printf("f0 partition starts %d, hole %d-%d, end %d\n",
+		   f0start, holestart, holestart + EXT2_HOLE*EXT2_BLOCKSIZE,
+		   f0start + f0length);
+
+	if(partition_offset + EXT2_HOLE > f0length)
+	    error(14, "bootloader");
+
+	sprintf(badblockfilename, "/tmp/paloblk-%d", getpid());
+	if ((fd = open(badblockfilename, O_RDWR | O_CREAT | O_TRUNC)) < 0) {
+	    perror(badblockfilename);
+	    exit(1);
+	}
+    
+	for (i = (holestart - f0start)/EXT2_BLOCKSIZE;
+	     i < (holestart - f0start)/EXT2_BLOCKSIZE + EXT2_HOLE; i++) {
+	    char buf[128];
+	    sprintf(buf, "%d\n", i);
+	    write(fd, buf, strlen(buf));
+	}
+
+	sprintf(cmd, "mke2fs %s -b %d -l %s %s", do_format == 3 ? "-j" : "",
+		EXT2_BLOCKSIZE, badblockfilename, partitionname);
+
+	if (verbose)
+	    printf("Executing: %s\n", cmd);
+	else
+	    strcat(cmd, " > /dev/null 2>&1");
+
+	i = system(cmd);
+	unlink(badblockfilename);
+
+	if(WEXITSTATUS(i) != 0)
+	    error(20);
+
+	
+
+	STRUCTREAD(media, f, 0);
+	fb_init(&f);
+	f.flags |= PFLAG_EXT2;
+
+	if(commandline)
+	    strcpy(f.cmdline, commandline);
+
+	write_bootloader(media, bootloaderfd, holestart,
+			 holestart + EXT2_HOLE*EXT2_BLOCKSIZE, &f);
+	
+	STRUCTWRITE(media, f, 0);
+
+    }
+
+	
+}
+
 void
 do_randomaccess(int init, int media, int kernel32, int kernel64,
 	const char *commandline, int bootloader, int ramdisk,
@@ -433,7 +530,7 @@
     struct firstblock f;
     int bstart = 0;
 
-    if (0) printf("do_ra(%d, %d, %d, %d, '%s', %d, %d, %u, %u)\n",
+    if (verbose) printf("do_ra(%d, %d, %d, %d, '%s', %d, %d, %u, %u)\n",
 	init, media, kernel32, kernel64, commandline, bootloader, ramdisk, f0start,
 	f0length);
 
@@ -552,9 +649,11 @@
     {"bootloader", 1, 0, 'b'},
     {"ramdisk", 1, 0, 'r'},
     {"init-partitioned", 1, 0, 'I'},
+    {"format-as", 1, 0, 'e'},
     {"update-partitioned", 1, 0, 'U'},
     {"init-tape", 1, 0, 's'},
     {"init-cdrom", 1, 0, 'C'},
+    {"verbose", 0, 0, 'v'},
     {"help", 0, 0, '?'},
     {0, 0, 0, 0}
 };
@@ -583,10 +682,10 @@
     char *bootloaderfile = "/usr/share/palo/iplboot";
     int init = 0;
     extern char *bld_info;
-    const char gargs[] = "f:C:s:b:k:c:r:I:?";
+    const char gargs[] = "f:C:s:b:k:c:r:I:e:v?";
     char *config_file = "/etc/palo.conf";
     char *newargv[MAXARGS];
-    int newargc;
+    int newargc, format_as = 0;
     FILE *fconfig;
 
     assert(sizeof (struct firstblock) == 2048);
@@ -720,6 +819,17 @@
 	    if (strlen(commandline) > 127)
 		error(3);
 	    break;
+	case 'e':
+	    if(strcmp(optarg, "2") == 0)
+		format_as = 2;
+	    else if(strcmp(optarg, "3") == 0)
+		format_as = 3;
+	    else
+		error(0, argv[0]);
+	    break;
+	case 'v':
+	    verbose = 1;
+	    break;
 	default:
 	    error(0, argv[0]);
 	    break;
@@ -787,13 +897,28 @@
 	    }
 	    if (f0 == MAXPARTS)
 		error(11);
-	    print_ptab_pretty(ptab, MAXPARTS);
+	    if(verbose) {
+		print_ptab_pretty(ptab, MAXPARTS);
 
-	    if (0) printf("F0 partition start sector %d length %d\n",
+		printf("F0 partition start sector %d length %d\n",
 		    ptab[f0].start, ptab[f0].length);
+	    }
 
-	    do_randomaccess(init, media, kernel32, kernel64, commandline, bootloader,
-		ramdisk, ptab[f0].start * 512, ptab[f0].length * 512);
+	    if (format_as) {
+		/* if we're going to be a formatted partition, we can't
+		 * load anything into it, so check we haven't been asked
+		 * to */
+		if(kernel32 != -1 || kernel64 != -1
+		   || ramdisk != -1)
+		    error(18);
+		printf("OK we're doing a format as ext%d\n", format_as);
+		do_formatted(init, media, medianame, f0 + 1,
+			     ptab[f0].start * 512, ptab[f0].length * 512,
+			     bootloader, format_as, commandline);
+	    } else
+		do_randomaccess(init, media, kernel32, kernel64, commandline,
+				bootloader, ramdisk, ptab[f0].start * 512,
+				ptab[f0].length * 512);
 	}
 	break;
     case CDROM:
Index: palo/usage.txt
===================================================================
RCS file: /var/cvs/palo/palo/usage.txt,v
retrieving revision 1.3
diff -u -r1.3 usage.txt
--- palo/usage.txt	6 Aug 2002 15:35:22 -0000	1.3
+++ palo/usage.txt	8 Nov 2003 01:05:56 -0000
@@ -46,6 +46,15 @@
 		When -f is not specified, palo tries /etc/palo.conf.  Use
 		--configfile=/dev/null to avoid configuration files or
 		warnings when /etc/palo.conf is missing.
+    -v, --verbose
+		Provide more verbose information when running palo
+    -e, --format-as=type
+		This is only for partitioned media:  Format the palo
+		partition as an ext2 (type == 2) or ext3 (type == 3)
+		partition.  With this option, you cannot specify
+		any parameters, kernels or ramdisks to be loaded into
+		the palo partition
+		
 
 'palo' with no arguments whatsoever is equivalent to 'palo -f /etc/palo.conf'.
 



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On Fri, Nov 07, 2003 at 06:52:58PM +0100, Joel Soete wrote:
> > [...] I bet it's calling BLKGETSIZE64 and our put_user() is broken.
> 
> I trusted that Grant merged the same code in 2.4 and 2.6 for put_user() some
> time ago?

put_user()?
I don't recall.

> Is it the same with 64bits kernels?

Can you point me at the modified 2.4 file and I'll check.

thanks,
grant


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On Sat, 7 Nov 2003, James Bottomley wrote:

> It can be a bit of a pain having both a palo partition and a /boot
> partition on the root disc (and both < 2GB), so this patch allows the
> palo partition to be mounted as an ordinary ext2/ext3 filesystem
> (ideally as /boot).

Well, not if you have read the FAQ ;)
But I agree, I recently assisted someone (via IRC) reinstalling
his 712, because he forgot to create a F0 partition, but he
created a /boot in the first 2GB.

> It does this by creating an ext2/3 filesystem in the palo partition but
> leaving a hole for the iplboot program (by telling the filesystem the
> blocks are bad).  The kernels can be booted from this filesystem by
> specifying 0/ as the partition as usual.

I don't know much ext2/3 details, but is there a way that a fsck
could mess things up? Eg. not an ordinary fsck, but if the user
runs it manually with special options?

I suppose the same technique could be also used for other filesystems
palo supports (in the future).

> Attached is a preliminary patch for you to see what you think.
>
> Ultimately, it should mean we can get palo to operate much more like
> grub (using a palo.conf file within the palo partition itself for
> instance).

That would be a logical consequence.

Very nice!


Keep up the good work,
  Max


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Grant Grundler wrote:
> On Fri, Nov 07, 2003 at 06:52:58PM +0100, Joel Soete wrote:
> 
>>>[...] I bet it's calling BLKGETSIZE64 and our put_user() is broken.
>>
>>I trusted that Grant merged the same code in 2.4 and 2.6 for put_user() some
>>time ago?
> 
> 
> put_user()?
> I don't recall.
> 
> 
>>Is it the same with 64bits kernels?
> 
> 
> Can you point me at the modified 2.4 file and I'll check.
> 
IIRC include/asm-parisc/uaccess.h

I do not work more on this stuff because I am awaiting patch that 
Randolph (always iirc) should still have in its tree to change the 
management of exception (which Matthew assumes to never occur in kernel 
mode iirc) (sorry but I just spend half an hour to find back this thread 
but without success :( )

hth,
	Joel




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Subject: Re: [parisc-linux] evolution (1.4.5-1) 'protection id trap' [was:
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Hello Carlos,

More and more strange behaviour:

after my weekly apt-get dist-upgrade i relaunch evolution,
it hang again at the same point with usual message:
evolution (pid 2999): Protection id trap (code 27)
[..]

But if I launch it a second time no more pb???

Very strange isn't it?

Joel 


Joel Soete wrote:
> Carlos,
> 
> Yes it didn't crash anymore :)
> 
> But I didn't have more opportunity to reboot severall time this c110 to make
> more test (the only difference between the two previous one: the first was
> a reboot, the second was a boot? and absolutley no other changes).
> 
> Cheers,
>     Joel
> 
> 
> 
>>-- Original Message --
>>From: Carlos O'Donell <carlos@baldric.uwo.ca>
>>To: Joel Soete <soete.joel@tiscali.be>
>>Cc: parisc-linux@parisc-linux.org
>>Date: Sun, 2 Nov 2003 15:22:28 -0500
>>Subject: Re: [parisc-linux] evolution (1.4.5-1) 'protection id trap' [was:
>>do_page_fault?]
>>
>>
>>On Sat, Nov 01, 2003 at 11:27:20PM +0000, Joel Soete wrote:
>>Hi Carlos,
>>
>>I don't understand anymore anything.
>>
>>This afternoon i recompile k 2.4.23-pre9-pa13 + Randolph patch to test
>>it. (Ok)
>>
>>So I launch evolution which crash at 
>>he same place as usual.
>>
>>After the diner I restart this c110 with this new kernel but this time,
>>no more "do_page_fault() pid=805 command='evolution' type=7". I restart
>>it severall time no means to reproduce anymore :(
> 
> 
> So it doesn't cras
> 
>>anymore? :) 
> 
> 
> c.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
> 
> -------------------------------------------------------------------------
> Tiscali ADSL: 3 mois GRATUITS! L'Internet rapide, c'est pour tout le monde.
> 
> http://reg.tiscali.be/default.asp?lg=fr
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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On Sat, Nov 08, 2003 at 12:46:28PM +0000, Joel Soete wrote:
> More and more strange behaviour:
> 
> after my weekly apt-get dist-upgrade i relaunch evolution,
> it hang again at the same point with usual message:
> evolution (pid 2999): Protection id trap (code 27)
> [..]
> 
> But if I launch it a second time no more pb???
> 
> Very strange isn't it?

Not at all! Anything is possible with some imagination :)
If it's repeatable then we can catch it. Stick evolution under gdb and
remember to preload a debugging libc and catch it when it crashes. Send
the 'bt full' back to the list for analysis.

c.


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Subject: Re: [parisc-linux] Allow palo partition to be mounted as ext2
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On Fri, Nov 07, 2003 at 07:13:55PM -0600, James Bottomley wrote:
> It can be a bit of a pain having both a palo partition and a /boot
> partition on the root disc (and both < 2GB), so this patch allows the
> palo partition to be mounted as an ordinary ext2/ext3 filesystem
> (ideally as /boot).
> 
> It does this by creating an ext2/3 filesystem in the palo partition but
> leaving a hole for the iplboot program (by telling the filesystem the
> blocks are bad).  The kernels can be booted from this filesystem by
> specifying 0/ as the partition as usual.
> 
> Attached is a preliminary patch for you to see what you think.
> 
> Ultimately, it should mean we can get palo to operate much more like
> grub (using a palo.conf file within the palo partition itself for
> instance).
> 
> The diffs are against the palo cvs tree.

Great work James! I like the addition of verbose to the command line.
This definately gets us a step closer to behaving or perhaps integrating
palo into grub. The only suggestion I have is that someone should
remember to update palo's debian/ files to reflect the fact that you
rely on 'e2fsprogs' for mke2fs. The computer scientist in me wants to
distinguish between failure cases when mke2fs exists and returns an
error code versus it doesn't exist on the $PATH (e.g. check if mke2fs
runs without params fist "/sbin/mke2fs -V").

c.



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On Sat, Nov 08, 2003 at 10:59:20AM +0000, Joel Soete wrote:
> IIRC include/asm-parisc/uaccess.h

get/put user stuff looks the same to me in both 2.4/2.6 cvs.
I'm likely to forget forward porting 2.4 changes to 2.6 but I thought
I got that in the last round. If someone trolls the parisc-linux-cvs
archive and compares my commits for the past 2-3 monthes...

thanks,
grant


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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 carlos
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On Sat, Nov 08, 2003 at 01:59:55PM -0700, Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	carlos	03/11/08 13:59:55
> 
> Modified files:
> 	arch/parisc/kernel: traps.c 
> 
> Log message:
> Cleanup trap handling for codes 13,15,16 and 17. In particular forward port 13, and make 17 non-fatal to the kernel (only the process should die).

tausq,

Here's the trap handler cleanup I promised. Please comment.

c.

Index: Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/Makefile,v
retrieving revision 1.83
diff -u -p -r1.83 Makefile
--- Makefile	2 Nov 2003 04:40:49 -0000	1.83
+++ Makefile	8 Nov 2003 20:53:32 -0000
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 0
-EXTRAVERSION = -test9-pa4
+EXTRAVERSION = -test9-pa5
 
 # *DOCUMENTATION*
 # To see a list of typical targets execute "make help"
Index: arch/parisc/kernel/traps.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/traps.c,v
retrieving revision 1.10
diff -u -p -r1.10 traps.c
--- arch/parisc/kernel/traps.c	8 Oct 2003 20:52:07 -0000	1.10
+++ arch/parisc/kernel/traps.c	8 Nov 2003 20:53:35 -0000
@@ -557,20 +557,41 @@ void handle_interruption(int code, struc
 		si.si_addr = (void *) regs->iaoq[0];
 		force_sig_info(SIGFPE, &si, current);
 		return;
-
+		
+	case 13:
+		/* Conditional Trap
+		   The condition succees in an instruction which traps 
+		   on condition  */
+		si.si_signo = SIGFPE;
+		/* Set to zero, and let the userspace app figure it out from
+		   the insn pointed to by si_addr */
+		si.si_code = 0;
+		si.si_addr = (void *) regs->iaoq[0];
+		force_sig_info(SIGFPE, &si, current);
+		return;
+		
 	case 14:
 		/* Assist Exception Trap, i.e. floating point exception. */
 		die_if_kernel("Floating point exception", regs, 0); /* quiet */
 		handle_fpe(regs);
 		return;
-
+		
+	case 15:
+		/* Data TLB miss fault/Data page fault */
+		/* Fall through */
+	case 16:
+		/* Non-access instruction TLB miss fault */
+		/* The instruction TLB entry needed for the target address of the FIC
+		   is absent, and hardware can't find it, so we get to cleanup */
+		/* Fall through */
 	case 17:
 		/* Non-access data TLB miss fault/Non-access data page fault */
 		/* TODO: Still need to add slow path emulation code here */
-		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
-		
+		/* TODO: Understand what is meant by the TODO listed
+		         above this one. (Carlos) */
 		fault_address = regs->ior;
-		parisc_terminate("Non access data tlb fault!",regs,code,fault_address);
+		fault_space = regs->isr;
+		break;
 
 	case 18:
 		/* PCXS only -- later cpu's split this into types 26,27 & 28 */
@@ -580,9 +601,8 @@ void handle_interruption(int code, struc
 			return;
 		}
 		/* Fall Through */
-
-	case 15: /* Data TLB miss fault/Data page fault */
-	case 26: /* PCXL: Data memory access rights trap */
+	case 26: 
+		/* PCXL: Data memory access rights trap */
 		fault_address = regs->ior;
 		fault_space   = regs->isr;
 		break;
@@ -638,7 +658,6 @@ void handle_interruption(int code, struc
 			up_read(&current->mm->mmap_sem);
 		}
 		/* Fall Through */

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Well it seems that i reach to reproduce: just after a fresh reboot:

I first export LD_LIBRARY_PATH=/usr/lib/debug
then launch gdb with "handle all nostop" and "handle all pass" (as 
recommended in a previous mail),
(gdb) file /usr/bin/evolution
(gdb) run

all start fine until I point a mail to preview it in the preview's window.
Then a child process failled, so Ctrl-C in gdb and bt:
#0  0x4172005c in __pthread_sigsuspend () from /lib/libpthread.so.0
#1  0x4171fde0 in __pthread_wait_for_restart_signal ()
    from /lib/libpthread.so.0
#2  0x4172181c in __pthread_alt_lock () from /lib/libpthread.so.0
#3  0x4171e480 in pthread_mutex_lock () from /lib/libpthread.so.0
#4  0x41a7226c in free () from /lib/libc.so.6
#5  0x41993654 in g_free () from /usr/lib/libglib-2.0.so.0
#6  0x413453e0 in gtk_tooltips_new () from /usr/lib/libgtk-x11-2.0.so.0
#7  0x41345c68 in gtk_tooltips_set_tip () from /usr/lib/libgtk-x11-2.0.so.0
#8  0x407a6768 in bonobo_ui_toolbar_item_set_tooltip ()
    from /usr/lib/libbonoboui-2.so.0
#9  0x407a12fc in bonobo_ui_sync_status_new () from 
/usr/lib/libbonoboui-2.so.0
#10 0x4079bfb0 in bonobo_ui_sync_state () from /usr/lib/libbonoboui-2.so.0
#11 0x407963a0 in bonobo_ui_engine_get_view () from 
/usr/lib/libbonoboui-2.so.0
#12 0x407966b4 in bonobo_ui_engine_get_view () from 
/usr/lib/libbonoboui-2.so.0
#13 0x40796d10 in bonobo_ui_engine_update () from 
/usr/lib/libbonoboui-2.so.0
#14 0x40793b5c in bonobo_ui_engine_xml_set_prop ()
    from /usr/lib/libbonoboui-2.so.0
#15 0x40898dfc in _ORBIT_skel_small_Bonobo_UIContainer_setAttr ()
    from /usr/lib/libbonobo-2.so.0
#16 0x40b05174 in ORBit_c_stub_invoke () from /usr/lib/libORBit-2.so.0
#17 0x4089d6c4 in Bonobo_UIContainer_setAttr () from 
/usr/lib/libbonobo-2.so.0
#18 0x4078dc84 in bonobo_ui_component_set_prop ()
    from /usr/lib/libbonoboui-2.so.0
#19 0x4078db8c in bonobo_ui_component_set_prop ()
    from /usr/lib/libbonoboui-2.so.0
#20 0x41ecbf08 in mail_disable_stop ()
    from /usr/lib/evolution/1.4/components/libevolution-mail.so
#21 0x41ecb074 in mail_call_main ()
    from /usr/lib/evolution/1.4/components/libevolution-mail.so
#22 0x41ec9a00 in mail_msg_wait_all ()
    from /usr/lib/evolution/1.4/components/libevolution-mail.so
#23 0x419b5044 in g_vsnprintf () from /usr/lib/libglib-2.0.so.0
#24 0x4198c904 in unblock_source () from /usr/lib/libglib-2.0.so.0
#25 0x4198ddcc in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#26 0x4198e1c0 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#27 0x4198eb70 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#28 0x40881490 in bonobo_main () from /usr/lib/libbonobo-2.so.0
#29 0x0009deb8 in main ()
#30 0x41a1146c in __libc_start_main () from /lib/libc.so.6
#31 0x00022e10 in _start ()
----------><----------

At the console, I could always capture:

request_module[net-pf-10]: fork failed, errno 1
evolution (pid 879): Protection id trap (code 27)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111 Not tainted
r00-03  00000000 103b7524 1015352c 00282b28
r04-07  00000000 00000000 00000001 11f27da0
r08-11  00000000 00000001 13084548 fffffff2
r12-15  419ee608 419ee718 419345a8 419345a8
r16-19  419ee608 419345a8 00000070 1371d000
r20-23  00000000 00000002 00282b2e 00000000
r24-27  11f27da0 00000000 10d0b520 10304010
r28-31  00000000 10314a60 130845c0 101532c8
sr0-3   00000000 00000000 00000000 00000003
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10153658 1015365c
  IIR: 0ed4d240    ISR: 00000003  IOR: 00282b2e
  CPU:        0   CR30: 13084000 CR31: 103a8000
  ORIG_R28: 419345a8

----------><----------

while I can still see processes:
$ ps -ef | grep evol
root       869   863  8 17:15 pts/2    00:00:35 /usr/bin/evolution
root       875     1  0 17:16 ?        00:00:02 
/usr/lib/evolution/1.4/evolution-wombat 
--oaf-activate-iid=OAFIID:GNOME_Evolution_Wombat_InterfaceCheck 
--oaf-ior-fd=25
root       877     1  0 17:16 ?        00:00:02 
/usr/lib/evolution/1.4/evolution-alarm-notify 
--oaf-activate-iid=OAFIID:GNOME_Evolution_Calendar_AlarmNotify_Factory 
--oaf-ior-fd=27
root       879   869  0 17:16 pts/2    00:00:00 [evolution] <defunct>

----------><----------

Unfortunately:
# gdb program 879
GNU gdb 5.3-debian
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain 
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "hppa-linux".
Attaching to process 879
ptrace: Operation not permitted.
/root/879: No such file or directory.

----------><----------

Once again if I re-launch prgm, I do get any more the pb?

What do you think?

Thanks for help,
	Joel

PS1: I would try to see if can can reproduce it (just after a fresh 
reboot) on my b2k (Monday only)

PS2: Just as remainder, it is a fresh 'apt-get dist-upgrade' unstable 
debian runing on a c110 model with a merged kernel of mine 
2.4.23-pre9-pa13 (which, else where, seems to run perfectly in 32 and 64 
bits even in SMP mode on some L :) )


Carlos O'Donell wrote:
> On Sat, Nov 08, 2003 at 12:46:28PM +0000, Joel Soete wrote:
> 
>>More and more strange behaviour:
>>
>>after my weekly apt-get dist-upgrade i relaunch evolution,
>>it hang again at the same point with usual message:
>>evolution (pid 2999): Protection id trap (code 27)
>>[..]
>>
>>But if I launch it a second time no more pb???
>>
>>Very strange isn't it?
> 
> 
> Not at all! Anything is possible with some imagination :)
> If it's repeatable then we can catch it. Stick evolution under gdb and
> remember to preload a debugging libc and catch it when it crashes. Send
> the 'bt full' back to the list for analysis.
> 
> c.
> 



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Just because it still failed to boot on my b2k (Suckio pb), may I ask 
you your .config file (if it is not the defconfig) and also which 64bit 
compiler did you used.

Thanks again for additional help,
	Joel

Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	carlos	03/11/08 14:00:57
> 
> Modified files:
> 	.              : Makefile 
> 
> Log message:
> Trap handling changes made. Boots on A500, 64-bit kernel. Bumped to -pa5
> 
> _______________________________________________
> parisc-linux-cvs mailing list
> parisc-linux-cvs@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux-cvs
> 



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On Sat, Nov 08, 2003 at 09:44:23PM +0000, Joel Soete wrote:
> +       case 13:
> +               if (user_mode(regs)) {
> +#ifdef PRINT_USER_FAULTS
> +                       printk(KERN_DEBUG "\nhandle_interruption() id=%d 
> command='%s'\n",
> +                           current->pid, current->comm);
> +                       show_regs(regs);
> +#endif
> +                       /* Conditional Trap
> +                          The condition succees in an instruction which 
> traps on condition  */
> +                       si.si_signo = SIGFPE;
> [...]
> +                       return;
> +               } else break;
> 
> (sorry for bad wrap but I also join the patch I suggested)
> 
> But you can prefer to ignore as it is just a work around and that I 
> don't yet see what other solution could be bring to such pb?

Adding the check for user_mode. Thanks Joel!
It seems that the kernel tries to use 'addi,tc' and a few other whichs
might generate a trap.

c.



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On Sat, Nov 08, 2003 at 09:11:29PM +0000, Joel Soete wrote:
> all start fine until I point a mail to preview it in the preview's window.
> Then a child process failled, so Ctrl-C in gdb and bt:
> #0  0x4172005c in __pthread_sigsuspend () from /lib/libpthread.so.0
...
> #29 0x0009deb8 in main ()
> #30 0x41a1146c in __libc_start_main () from /lib/libc.so.6
> #31 0x00022e10 in _start ()
> ----------><----------

This is a trace from another thread. You need to attach to the thread
that is going to die and try to get a backtrace. This thread was happy
:) until you interrupted it's sleeping.

> At the console, I could always capture:
> 
> request_module[net-pf-10]: fork failed, errno 1
> evolution (pid 879): Protection id trap (code 27)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001111 Not tainted
> r00-03  00000000 103b7524 1015352c 00282b28
> r04-07  00000000 00000000 00000001 11f27da0
> r08-11  00000000 00000001 13084548 fffffff2
> r12-15  419ee608 419ee718 419345a8 419345a8
> r16-19  419ee608 419345a8 00000070 1371d000
> r20-23  00000000 00000002 00282b2e 00000000
> r24-27  11f27da0 00000000 10d0b520 10304010
> r28-31  00000000 10314a60 130845c0 101532c8
> sr0-3   00000000 00000000 00000000 00000003
> sr4-7   00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 10153658 1015365c
>  IIR: 0ed4d240    ISR: 00000003  IOR: 00282b2e
>  CPU:        0   CR30: 13084000 CR31: 103a8000
>  ORIG_R28: 419345a8
> 
> ----------><----------

I've never seen this perhaps some kernelish people would like to comment
on this?

 
> while I can still see processes:
> root       879   869  0 17:16 pts/2    00:00:00 [evolution] <defunct>

Try to find the thread that is going to die and attach to it.

c.


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Any way, should it be this stuff (I don't notice it before):
----------><----------
--- uaccess.h.orig	2004-04-20 19:58:08.000000000 +0200
+++ uaccess.h-t1	2004-04-20 20:10:09.000000000 +0200
@@ -42,8 +42,8 @@
  #if BITS_PER_LONG == 32
  #define LDD_KERNEL(ptr) __get_kernel_bad();
  #define LDD_USER(ptr) __get_user_bad();
-#define STD_KERNEL(x, ptr) __put_kernel_asm64((u32)x,ptr)
-#define STD_USER(x, ptr) __put_user_asm64((u32)x,ptr)
+#define STD_KERNEL(x, ptr) __put_kernel_asm64(x,ptr)
+#define STD_USER(x, ptr) __put_user_asm64(x,ptr)
  #else
  #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
  #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
----------><----------

But I presume it should reuired some cast so would it be better:
----------><----------
--- uaccess.h.orig	2004-04-20 19:58:08.000000000 +0200
+++ uaccess.h-t2	2004-04-20 20:10:41.000000000 +0200
@@ -42,8 +42,8 @@
  #if BITS_PER_LONG == 32
  #define LDD_KERNEL(ptr) __get_kernel_bad();
  #define LDD_USER(ptr) __get_user_bad();
-#define STD_KERNEL(x, ptr) __put_kernel_asm64((u32)x,ptr)
-#define STD_USER(x, ptr) __put_user_asm64((u32)x,ptr)
+#define STD_KERNEL(x, ptr) __put_kernel_asm64((u64)x,ptr)
+#define STD_USER(x, ptr) __put_user_asm64((u64)x,ptr)
  #else
  #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
  #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
----------><----------

I don't test it but hth,
	Joel



Grant Grundler wrote:
> On Sat, Nov 08, 2003 at 10:59:20AM +0000, Joel Soete wrote:
> 
>>IIRC include/asm-parisc/uaccess.h
> 
> 
> get/put user stuff looks the same to me in both 2.4/2.6 cvs.
> I'm likely to forget forward porting 2.4 changes to 2.6 but I thought
> I got that in the last round. If someone trolls the parisc-linux-cvs
> archive and compares my commits for the past 2-3 monthes...
> 
> thanks,
> grant
> 



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On Sat, Nov 08, 2003 at 09:16:38PM +0000, Joel Soete wrote:
> Just because it still failed to boot on my b2k (Suckio pb), may I ask 
> you your .config file (if it is not the defconfig) and also which 64bit 
> compiler did you used.

Custom built 64-bit cross based on 3.3.1 release and upstream binutils.
Adding your fix for the suckio pb right now.

c.



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On Sat, Nov 08, 2003 at 12:46:28PM +0000, Joel Soete wrote:
> But if I launch it a second time no more pb???
> Very strange isn't it?

Sounds like a cache coherency/aliasing problem.
Once you start looking at code, watch out for module loading
and shared memory maps type stuff.

grant


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Carlos O'Donell wrote:
> On Sat, Nov 08, 2003 at 09:11:29PM +0000, Joel Soete wrote:
[...]
>>
>>request_module[net-pf-10]: fork failed, errno 1
>>evolution (pid 879): Protection id trap (code 27)
>>
>>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>PSW: 00000000000001000000000000001111 Not tainted
>>r00-03  00000000 103b7524 1015352c 00282b28
>>r04-07  00000000 00000000 00000001 11f27da0
>>r08-11  00000000 00000001 13084548 fffffff2
>>r12-15  419ee608 419ee718 419345a8 419345a8
>>r16-19  419ee608 419345a8 00000070 1371d000
>>r20-23  00000000 00000002 00282b2e 00000000
>>r24-27  11f27da0 00000000 10d0b520 10304010
>>r28-31  00000000 10314a60 130845c0 101532c8
>>sr0-3   00000000 00000000 00000000 00000003
>>sr4-7   00000000 00000000 00000000 00000000
>>
>>IASQ: 00000000 00000000 IAOQ: 10153658 1015365c
>> IIR: 0ed4d240    ISR: 00000003  IOR: 00282b2e
>> CPU:        0   CR30: 13084000 CR31: 103a8000
>> ORIG_R28: 419345a8
>>
>>----------><----------
> 
> 
> I've never seen this perhaps some kernelish people would like to comment
> on this?
> 
it is also possible that my merge broken something (but not enough time 
to check with original cvs, compiling a kernel with c110 is a long job :( )

btw i will try to see how (where) attaching "the thread that is going to 
die."

Thanks a lot,
	Joel





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Grant Grundler wrote:
> On Sat, Nov 08, 2003 at 12:46:28PM +0000, Joel Soete wrote:
> 
>>But if I launch it a second time no more pb???
>>Very strange isn't it?
> 
> 
> Sounds like a cache coherency/aliasing problem.
> Once you start looking at code, watch out for module loading
> and shared memory maps type stuff.
> 
> grant
> 
Thanks Grant,

I have to put it in my todo list (sorry not enough time in a day)

Joel



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Hi,

  I have a 785/B2000 with FXE gfx on board and would like to really get X going and maybe even OpenGL one day.

Can anyone help with pointers to a driver for this card or even some docco to get x running on even a basic frame buffer mode.

I have turned Google and HP websites upside down to no avail.

The system runs HPUX fine but i'm finding it a steep learning curve and dont have access to any software from HP.

I'm keen to get OpenGL going on this box.

Very frustrated,
   John


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>   I have a 785/B2000 with FXE gfx on board and would like to really get X going and maybe even OpenGL one day.
> 

look on the mailing list archives, someone just asked about this the 
other day -- FXE is not supported because of lack of documentation.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] fdisk problems 2.4 <-> 2.6
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Ok Ok :)

Matthew you have right:

Joel Soete wrote:
> ----------><----------
> --- uaccess.h.orig    2004-04-20 19:58:08.000000000 +0200
> +++ uaccess.h-t2    2004-04-20 20:10:41.000000000 +0200
> @@ -42,8 +42,8 @@
>  #if BITS_PER_LONG == 32
>  #define LDD_KERNEL(ptr) __get_kernel_bad();
>  #define LDD_USER(ptr) __get_user_bad();
> -#define STD_KERNEL(x, ptr) __put_kernel_asm64((u32)x,ptr)
> -#define STD_USER(x, ptr) __put_user_asm64((u32)x,ptr)
> +#define STD_KERNEL(x, ptr) __put_kernel_asm64((u64)x,ptr)
> +#define STD_USER(x, ptr) __put_user_asm64((u64)x,ptr)
>  #else
>  #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
>  #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
> ----------><----------
I just test it and it seems to be a fix (among others):
hpalin:~# fdisk /dev/sda

Command (m for help): p

Disk /dev/sda: 4294 MB, 4294816768 bytes
133 heads, 62 sectors/track, 1017 cylinders
Units = cylinders of 8246 * 512 = 4221952 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          16       65937   f0  Linux/PA-RISC boot
/dev/sda2              17          48      131936   fd  Linux raid 
autodetect
/dev/sda3              49          79      127813   fd  Linux raid 
autodetect
/dev/sda4              80         993     3768422    5  Extended
/dev/sda5              80         496     1719260   fd  Linux raid 
autodetect
/dev/sda6             497         558      255595   fd  Linux raid 
autodetect
/dev/sda7             559         589      127782   fd  Linux raid 
autodetect
/dev/sda8             590         620      127782   fd  Linux raid 
autodetect
/dev/sda9             621         993     1537848   83  Linux

Can somebody re-test it and ci for me?

hth,
	Joel




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On Fri, 2003-11-07 at 22:12, M. Grabert wrote:
> I don't know much ext2/3 details, but is there a way that a fsck
> could mess things up? Eg. not an ordinary fsck, but if the user
> runs it manually with special options?

Not fsck, no.  The bad blocks are treated as though they belonged to an
invisible file.  redoing the mke2fs, of course, would destroy the
bootability.

> I suppose the same technique could be also used for other filesystems
> palo supports (in the future).

As long as they have bad block support, yes---that's not a given;
reiserfs doesn't seem to have it, for instance.

Also, since the command has to be run by palo and palo has to know how
to format the bad block list, it's not trivial to do.

However, the ultimate argument is because palo's iplboot loader only
knows about ext2/3, even if you could format the partition as anything
else, you currently wouldn't be able to boot from it.

James




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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] 2.4 64bits MAX_ADDRESS ?
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Hi all,

Being at the very begining of my study of the Mel Goramn' thesis and so 
comparing parisc linux vm implementation, I just try to figure out some 
cst values. I so write I small case:

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

#define PAGE_SHIFT 12
#define PAGE_SIZE       (1UL << PAGE_SHIFT)
#define PAGE_MASK       (~(PAGE_SIZE-1))

/* ifdef __LP64__ */
#define PT_NLEVELS 3
#define PT_INITIAL 4 /* Number of initial page tables */
/*
#else __LP64__
#define PT_NLEVELS 2
#define PT_INITIAL 2
#endif
  */

#define MAX_ADDRBITS (PAGE_SHIFT + (PT_NLEVELS)*(PAGE_SHIFT - PT_NLEVELS))
#define MAX_ADDRESS (1UL << MAX_ADDRBITS)


int main(int argc, char * * argv, char * * env) {

     printf("For remainder:\n");
     printf("Int size: %d,\n", sizeof(int));
     printf("Long size: %d,\n", sizeof(long));
     printf("LongLong size: %d.\n\n", sizeof(long long));
     printf("Some VM cst into parisc 64bits:\n");
     printf("PAGE_SHIFT: %#010x (%u)\n\n", PAGE_SHIFT, PAGE_SHIFT);
     printf("PAGE_SIZE   (1UL << PAGE_SHIFT)\n");
     printf("PAGE_SIZE: %#010x (%u)\n\n", PAGE_SIZE, PAGE_SIZE);
     printf(" PAGE_MASK  (~(PAGE_SIZE-1))\n");
     printf("PAGE_MASK: %#010x (%u) (%d)\n\n", PAGE_MASK, PAGE_MASK, 
PAGE_MASK);

     printf("PT_NLEVELS: %#010x (%u)\n\n", PT_NLEVELS, PT_NLEVELS);
     printf("PT_INITIAL: %#010x (%u)\n\n", PT_INITIAL, PT_INITIAL);
     printf("MAX_ADDRBITS (PAGE_SHIFT + (PT_NLEVELS)*(PAGE_SHIFT - 
PT_NLEVELS))\n");
     printf("MAX_ADDRBITS: %#010x (%u)\n\n", MAX_ADDRBITS, MAX_ADDRBITS);
     printf("MAX_ADDRESS (1UL << MAX_ADDRBITS)\n");
     printf("MAX_ADDRESS: %#010Lx (%ul)\n\n", MAX_ADDRESS, MAX_ADDRESS);
}

which correctly warm me about some 'overflow':

foo.c: In function `main':
foo.c:42: warning: left shift count >= width of type
foo.c:42: warning: left shift count >= width of type

afaik MAX_ADDRBITS==39 against a long contains only 32bits?

So is this patch make sense for all (I trust if we want a day managing 
the some 15 Exabytes of vm available with pa-2.0 processors):
---------><---------
--- include/asm-parisc/pgtable.h.orig	2003-11-09 18:08:10.000000000 +0100
+++ include/asm-parisc/pgtable.h	2003-11-09 18:09:01.000000000 +0100
@@ -72,7 +72,11 @@
  #endif

  #define MAX_ADDRBITS (PAGE_SHIFT + (PT_NLEVELS)*(PAGE_SHIFT - PT_NLEVELS))
+#ifdef __LP64__
+#define MAX_ADDRESS (1ULL << MAX_ADDRBITS)
+#else
  #define MAX_ADDRESS (1UL << MAX_ADDRBITS)
+#endif

  #define SPACEID_SHIFT (MAX_ADDRBITS - 32)

---------><---------

And may be is this not the only change. Please advise.

Thanks inadvance,
	Joel



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On Sun, Nov 09, 2003 at 05:37:08PM +0000, Joel Soete wrote:
> which correctly warm me about some 'overflow':
> 
> foo.c: In function `main':
> foo.c:42: warning: left shift count >= width of type
> foo.c:42: warning: left shift count >= width of type
> 
> afaik MAX_ADDRBITS==39 against a long contains only 32bits?

no, long is 64-bit in LP64.  that's what LP64 means.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sun, Nov 09, 2003 at 01:50:49PM +0000, Joel Soete wrote:
> Joel Soete wrote:
> >----------><----------
> >--- uaccess.h.orig    2004-04-20 19:58:08.000000000 +0200
> >+++ uaccess.h-t2    2004-04-20 20:10:41.000000000 +0200
> >@@ -42,8 +42,8 @@
> > #if BITS_PER_LONG == 32
> > #define LDD_KERNEL(ptr) __get_kernel_bad();
> > #define LDD_USER(ptr) __get_user_bad();
> >-#define STD_KERNEL(x, ptr) __put_kernel_asm64((u32)x,ptr)
> >-#define STD_USER(x, ptr) __put_user_asm64((u32)x,ptr)
> >+#define STD_KERNEL(x, ptr) __put_kernel_asm64((u64)x,ptr)
> >+#define STD_USER(x, ptr) __put_user_asm64((u64)x,ptr)
> > #else
> > #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
> > #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
> >----------><----------
> I just test it and it seems to be a fix (among others):

I figured this out in Chicago airport yesterday.  Grant just pointed
me to this mail after I checked in the fix deleting the cast entirely.
Thanks for testing though.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] fdisk problems 2.4 <-> 2.6
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Cc: parisc-linux@lists.parisc-linux.org,
	Grant Grundler <grundler@parisc-linux.org>
To: Matthew Wilcox <willy@debian.org>
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Just for remainder here is the alignement of uaccess.h (i just finished 
to test on my c110 :)):
----------><----------
--- uaccess.h.orig      2004-04-20 21:03:59.000000000 +0200
+++ uaccess.h   2003-11-09 18:47:06.000000000 +0100
@@ -42,8 +42,8 @@
  #if BITS_PER_LONG == 32
  #define LDD_KERNEL(ptr) __get_kernel_bad();
  #define LDD_USER(ptr) __get_user_bad();
-#define STD_KERNEL(x, ptr) __put_kernel_asm64((u32)x,ptr)
-#define STD_USER(x, ptr) __put_user_asm64((u32)x,ptr)
+#define STD_KERNEL(x, ptr) __put_kernel_asm64((u64)x,ptr)
+#define STD_USER(x, ptr) __put_user_asm64((u64)x,ptr)
  #else
  #define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
  #define LDD_USER(ptr) __get_user_asm("ldd",ptr)
@@ -213,41 +213,33 @@
                 : "=r"(__pu_err)                            \
                 : "r"(ptr), "r"(x), "0"(__pu_err))

-static inline void __put_kernel_asm64(u64 x, void *ptr)
-{
-       u32 hi = x>>32;
-       u32 lo = x&0xffffffff;
-       __asm__ __volatile__ (
-               "\n1:\tstw %1,0(%0)\n"
-               "\n2:\tstw %2,4(%0)\n"
-               "3:\n"
-               "\t.section __ex_table,\"a\"\n"
-                "\t.word\t1b\n"
-                "\t.word\t(3b-1b)+1\n"
-                "\t.word\t2b\n"
-                "\t.word\t(3b-2b)+1\n"
-                "\t.previous"
-               : : "r"(ptr), "r"(hi), "r"(lo));
-
-}
-
-static inline void __put_user_asm64(u64 x, void *ptr)
-{
-       u32 hi = x>>32;
-       u32 lo = x&0xffffffff;
-       __asm__ __volatile__ (
-               "\n1:\tstw %1,0(%%sr3,%0)\n"
-               "\n2:\tstw %2,4(%%sr3,%0)\n"
-               "3:\n"
-               "\t.section __ex_table,\"a\"\n"
-                "\t.word\t1b\n"
-                "\t.word\t(3b-1b)+1\n"
-                "\t.word\t2b\n"
-                "\t.word\t(3b-2b)+1\n"
-                "\t.previous"
-               : : "r"(ptr), "r"(hi), "r"(lo));
+#define __put_kernel_asm64(x, ptr)                         \
+       __asm__ __volatile__ (                              \
+               "\n1:\tstw\t%2,0(%1)\n"                     \
+               "2:\tstw\t%R2,4(%1)\n"                      \
+               "3:\n"                                      \
+               "\t.section __ex_table,\"a\"\n"             \
+                "\t.word\t1b\n"                            \
+                "\t.word\t(3b-1b)+1\n"                     \
+                "\t.word\t2b\n"                            \
+                "\t.word\t(3b-2b)+1\n"                     \
+                "\t.previous"                              \
+               : "=r"(__pu_err)                            \
+               : "r"(ptr), "r"(x), "0"(__pu_err))

-}
+#define __put_user_asm64(x, ptr)                           \
+       __asm__ __volatile__ (                              \
+               "\n1:\tstw\t%2,0(%%sr3,%1)\n"               \
+               "2:\tstw\t%R2,4(%%sr3,%1)\n"                \
+               "3:\n"                                      \
+               "\t.section __ex_table,\"a\"\n"             \
+                "\t.word\t1b\n"                            \
+                "\t.word\t(3b-1b)+1\n"                     \
+                "\t.word\t2b\n"                            \
+                "\t.word\t(3b-2b)+1\n"                     \
+                "\t.previous"                              \
+               : "=r"(__pu_err)                            \
+               : "r"(ptr), "r"(x), "0"(__pu_err))

  #endif

----------><----------

Cheers,
	Joel

PS: I also attach the patch for easy apply
and here I need the cast.



Matthew Wilcox wrote:
> On Sun, Nov 09, 2003 at 01:50:49PM +0000, Joel Soete wrote:
> 
>>Joel Soete wrote:
>>
>>>----------><----------
>>>--- uaccess.h.orig    2004-04-20 19:58:08.000000000 +0200
>>>+++ uaccess.h-t2    2004-04-20 20:10:41.000000000 +0200
>>>@@ -42,8 +42,8 @@
>>>#if BITS_PER_LONG == 32
>>>#define LDD_KERNEL(ptr) __get_kernel_bad();
>>>#define LDD_USER(ptr) __get_user_bad();
>>>-#define STD_KERNEL(x, ptr) __put_kernel_asm64((u32)x,ptr)
>>>-#define STD_USER(x, ptr) __put_user_asm64((u32)x,ptr)
>>>+#define STD_KERNEL(x, ptr) __put_kernel_asm64((u64)x,ptr)
>>>+#define STD_USER(x, ptr) __put_user_asm64((u64)x,ptr)
>>>#else
>>>#define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
>>>#define LDD_USER(ptr) __get_user_asm("ldd",ptr)
>>>----------><----------
>>
>>I just test it and it seems to be a fix (among others):
> 
> 
> I figured this out in Chicago airport yesterday.  Grant just pointed
> me to this mail after I checked in the fix deleting the cast entirely.
> Thanks for testing though.
> 



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From: James Bottomley <James.Bottomley@steeleye.com>
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On Sun, 2003-11-09 at 11:48, Matthew Wilcox wrote:
> no, long is 64-bit in LP64.  that's what LP64 means.

What Matthew says is correct for the kernel.  You got your error because
you look to have compiled your program in userspace with kernel
headers.  Since userspace is currently only 32 bit, that's why you get
the problems. 

If you want to try out 64 bit userspace, which is the only way userspace
will see a virtual address longer than 32 bits, then there's a
preliminary test environment at

http://parisc-linux.org/~jejb/64bit.tar.gz

The mini library may be sufficient to compile your program.

James




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I inherited an HP 715/80 (It had HP-UX 10.01 on it originally, and I still
have the original install media) some time ago and am trying to get it up
and running so I can do something useful with it.

I have downloaded and installed PA-Risc Linux 0.93 (I tried several attempts
with network images, but couldn't figure out how to get my 10/100 VG EISA
card working and don't have an aui-Ethernet transceiver for the built-in
nic).  I thought about downloading the Debian ISO's ... but life is just too
short for that many ISO downloads on a low-speed ADSL link ...

I would greatly appreciate some pointers on how to get a NIC working on this
beast so I can connect to the network and update the packages on-board to
hopefully get my system in a state where I can do something useful with it.

In addition to the built-in Ethernet and  the EISA 10/100 VG card, I have a
collection of 3COM ISA cards that I can insert in a pinch.

I'm not much of a C programmer (more of a m$ windoze gui guy), but I'm
willing to provide my 2 cents worth towards developing/editing/maintaining
documentation (when my 5 kids give me the chance).  And I'm willing to give
anything a try ...

Cheers

Shane Brodie

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2800.1264" name=3DGENERATOR></HEAD>
<BODY>
<DIV><SPAN class=3D613543619-09112003><FONT face=3DArial size=3D2>I =
inherited an HP=20
715/80 (It had HP-UX 10.01 on it originally, and I still have the =
original=20
install media) some time ago and am trying to get it up and running so I =
can do=20
something useful with it.</FONT></SPAN></DIV>
<DIV><SPAN class=3D613543619-09112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D613543619-09112003><FONT face=3DArial size=3D2>I have =
downloaded=20
and installed PA-Risc Linux 0.93 (I tried several attempts with network =
images,=20
but couldn't figure out how to get my 10/100 VG EISA card working and =
don't have=20
an aui-Ethernet transceiver for the built-in nic).&nbsp; I thought about =

downloading the Debian ISO's ... but life is just too short for that =
many ISO=20
downloads on a low-speed ADSL link ...</FONT></SPAN></DIV>
<DIV><SPAN class=3D613543619-09112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D613543619-09112003><FONT face=3DArial size=3D2>I =
would greatly=20
appreciate some pointers on how to get a NIC working on this beast so I =
can=20
connect to the network and update the packages on-board to hopefully get =
my=20
system in a state where I can do something useful with =
it.</FONT></SPAN></DIV>
<DIV><SPAN class=3D613543619-09112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D613543619-09112003><FONT face=3DArial size=3D2>In =
addition to the=20
built-in Ethernet and&nbsp; the EISA 10/100 VG card, I have a collection =
of 3COM=20
ISA cards that I can insert in a pinch.</FONT></SPAN></DIV>
<DIV><SPAN class=3D613543619-09112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D613543619-09112003><FONT face=3DArial size=3D2>I'm =
not much of a C=20
programmer (more of a m$ windoze gui guy), but I'm willing to provide my =
2 cents=20
worth towards developing/editing/maintaining documentation (when my 5 =
kids give=20
me the chance).&nbsp; And I'm willing to give anything a try=20
...</FONT></SPAN></DIV>
<DIV><SPAN class=3D613543619-09112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D613543619-09112003><FONT face=3DArial=20
size=3D2>Cheers</FONT></SPAN></DIV>
<DIV><SPAN class=3D613543619-09112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D613543619-09112003><FONT face=3DArial size=3D2>Shane=20
Brodie</FONT></SPAN></DIV></BODY></HTML>

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On Sun, Nov 09, 2003 at 01:48:56PM -0600, Shane G. Brodie wrote:
> I have downloaded and installed PA-Risc Linux 0.93 (I tried several attempts
> with network images, but couldn't figure out how to get my 10/100 VG EISA
> card working and don't have an aui-Ethernet transceiver for the built-in
> nic).  I thought about downloading the Debian ISO's ... but life is just too
> short for that many ISO downloads on a low-speed ADSL link ...

OK.  We don't normally ship the 100VG driver, but I have tried it on one
machine once, and it seemed to work.  You'll need to compile a new kernel
(or at least a new module).  This card is driven by the hp100 driver,
so look for the CONFIG_HP100 configuration option.

By the way, you said you were new to the platform, so it's worth
pointing out that 100VG is incompatible with the eventual 100 Mbps
Ethernet standard (100TX).  Unless you have a 100VG hub (in which case
you need to hit Grant to stop him sending you obsolete hardware ;-),
you'll need to plug your network cable into the 10Mbps socket on the card.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sun, Oct 26, 2003 at 08:40:52PM +0000, Joel Soete wrote:
> hmm may be should I try to rebuild the very last src (from hp).

netperf home is netperf.org.

> More over the pkg is not available for parisc but I trust it would just 
> be rebuild for this platform?

It does run/build on parisc. I've used it before.

Note that with B180, I can only get about 1MB/s throughput max.
With C3000 I get about 5 or 6 MB/s 100BT link.
Your network performance numbers are pretty far off from that
but there might be other factors involved.

I expect mem copy routines are saturating the CPU and thrashing
the data cache.  The tulip driver copies the entire buffer from
where the card DMA'd to the skbuff in order to "bias" the buffer
by 2 bytes. This avoids un-aligned data access in the "common" TCP case.
Adding "unaligned access" macros to the "common" networking code
path has been discussed and rejected (again) in the past month or so.
Linus himself has rejected such proposals in the past too.

If you twiddle the tulip driver to NOT copy all the data for
packets > 512 bytes, the kernel will tell you when/where the network
stack makes unaligned accesses. You can fix those and keep that as
a local patch. I'd be interested in hearing the netperf (or httperf)
numbers with such a patch when compared to the current behavior.

thanks,
grant


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On Sun, Nov 09, 2003 at 06:59:48PM +0000, Joel Soete wrote:
> Just for remainder here is the alignement of uaccess.h (i just finished 
> to test on my c110 :)):
> ----------><----------
> --- uaccess.h.orig      2004-04-20 21:03:59.000000000 +0200
> +++ uaccess.h   2003-11-09 18:47:06.000000000 +0100
> @@ -42,8 +42,8 @@
>  #if BITS_PER_LONG == 32
>  #define LDD_KERNEL(ptr) __get_kernel_bad();
>  #define LDD_USER(ptr) __get_user_bad();
> -#define STD_KERNEL(x, ptr) __put_kernel_asm64((u32)x,ptr)
> -#define STD_USER(x, ptr) __put_user_asm64((u32)x,ptr)
> +#define STD_KERNEL(x, ptr) __put_kernel_asm64((u64)x,ptr)
> +#define STD_USER(x, ptr) __put_user_asm64((u64)x,ptr)

willy just removed the (u32) cast and things seem to work for him.
Do you need the (u64) cast?

...
> -static inline void __put_kernel_asm64(u64 x, void *ptr)
...
> +#define __put_kernel_asm64(x, ptr)                         \
...

Why replace the static inline with a macro?
static inline provides type checking and
type "coercion" when it's not exactly right.

> +       __asm__ __volatile__ (                              \
> +               "\n1:\tstw\t%2,0(%1)\n"                     \
> +               "2:\tstw\t%R2,4(%1)\n"                      \

What is "%R2" intended to be?
Randolph pointed out this is broken before and I was wrong
to commit this chunk to the 2.4 tree (I'm working on
removing it now).

thanks,
grant


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On Sun, Nov 09, 2003 at 09:45:56PM -0700, Grant Grundler wrote:
> What is "%R2" intended to be?
> Randolph pointed out this is broken before and I was wrong
> to commit this chunk to the 2.4 tree (I'm working on removing it now).

For reference:
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-November/018441.html

grant


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> Why replace the static inline with a macro?
> static inline provides type checking and
> type "coercion" when it's not exactly right.
> 
> > +       __asm__ __volatile__ (                              \
> > +               "\n1:\tstw\t%2,0(%1)\n"                     \
> > +               "2:\tstw\t%R2,4(%1)\n"                      \
> 
> What is "%R2" intended to be?

"%R2" should cause the second register name of a register pair to
be printed.  It's used for long long support on 32-bit ports.  See
case 'R' in the function print_operand in pa.c.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> What is "%R2" intended to be?
> Randolph pointed out this is broken before and I was wrong
> to commit this chunk to the 2.4 tree (I'm working on
> removing it now).

Just a clarification:

%R2 is not *wrong* -- it points to the right side of argument register 
2 (jda explained this in an earlier thread), but I am not 100% sure 
%R2 will do the right thing for a 32-bit build though -- if you are 
running on a pa1.1 machine and the register is only 32-bit, does %R2 
automatically do the right thing with 64-bit arguments?  I guess it's 
easy enough to tell by looking at the code gcc generates...

anyway, i think we should stick with the inline version of the code
too....

thx
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> %R2 is not *wrong* -- it points to the right side of argument register 
> 2 (jda explained this in an earlier thread), but I am not 100% sure 
> %R2 will do the right thing for a 32-bit build though -- if you are 
> running on a pa1.1 machine and the register is only 32-bit, does %R2 
> automatically do the right thing with 64-bit arguments?  I guess it's 
> easy enough to tell by looking at the code gcc generates...

'R' simply adds 1 to the register number specified for operand 2.
This is the right thing to do for a DImode value running 32-bit code.
In the code that gcc generates, we use a specific set of register
pairs for long doubles (see HARD_REGNO_MODE_OK).  The main question
that I would have is is the register created in the asm consistent
with the register allocation needed for a DImode value.  I think it
would be if the mode/type for the input/output was specified
correctly.  This can be done with a cast in the asm.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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>-- Original Message --
>To: tausq@debian.org
>From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>Cc: grundler@parisc-linux.org, soete.joel@tiscali.be,
>	willy@debian.org, parisc-linux@lists.parisc-linux.org
>Date: Mon, 10 Nov 2003 00:25:42 -0500 (EST)
>Subject: Re: [parisc-linux] fdisk problems 2.4 <-> 2.6
>
>
>> %R2 is not *wrong* -- it points to the right side of argument register

> 2 (jda explained this in an earlier thread), but I am not 100% sure 
> %R2 will do the right thing for a 32-bit build though -- if you are 
> running on a pa1.1 machine and 
>he register is only 32-bit, does %R2 
> automatically do the right thing with 64-bit arguments?  I guess it's 
> easy enough to tell by looking at the code gcc generates...

'R' simply adds 1 to the register number specified for operand 2.
This is
>the right thing to do for a DImode value running 32-bit code.
In the code that gcc generates, we use a specific set of register
pairs for long doubles (see HARD_REGNO_MODE_OK).  The main question
that I would have is is the register created in the a
>m consistent
with the register allocation needed for a DImode value.  I think it
would be if the mode/type for the input/output was specified
correctly.  This can be done with a cast in the asm.

Dave
-- 
J. David Anglin                         
>        dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Dave,

Thanks a lot you explain all better I while I was trying to find a sleep
(too coffee even if not java :) ).

Just to remaind the following of the tread that Grant mentioned before:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2002-November/018443.html>

>  I think it would be if the mode/type for the input/output was specified
> correctly.  This can be done with a cast in the asm.

Yes, that is why I need cast in this case.

That says, obviously I just had enough time to test it with success before
submit it :)

Finaly, for the history, before 'BLKGETSIZE64' was used in evms and xfs,
I tried to write it as a macro because there was (as there are still) macro
for 32bit world on a pa1.1 and also for 64bits on pa2.0 and so I would like
to continue the same style :)

Thanks again to all for your attention,
    Joel

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That is Ok for me, Do you still have the patch to revert it?

Joel

>-- Original Message --
>From: Grant Grundler <grundler@parisc-linux.org>
>To: Joel Soete <soete.joel@tiscali.be>
>Cc: Matthew Wilcox <willy@debian.org>,
>	parisc-linux@lists.parisc-linux.org,
>	Grant Grundler <grundler@parisc-linux.org>
>Date: Sun, 9 Nov 2003 21:45:56 -0700
>Subject: Re: [parisc-linux] fdisk problems 2.4 <-> 2.6
>
>
>On Sun, Nov 09, 2003 at 06:59:48PM +0000, Joel Soete wrote:
> Just for remainder here is the alignement of uaccess.h (i just finished

> to test on my c110 :)):
> ----------><----------
> --- uaccess.h.orig      2004-04-20 21:03:59.000000000 +0200

>> +++ uaccess.h   2003-11-09 18:47:06.000000000 +0100
> @@ -42,8 +42,8 @@
>  #if BITS_PER_LONG == 32
>  #define LDD_KERNEL(ptr) __get_kernel_bad();
>  #define LDD_USER(ptr) __get_user_bad();
> -#define STD_KERNEL(x, ptr) __put_kernel_asm64((u32)x,
>tr)
> -#define STD_USER(x, ptr) __put_user_asm64((u32)x,ptr)
> +#define STD_KERNEL(x, ptr) __put_kernel_asm64((u64)x,ptr)
> +#define STD_USER(x, ptr) __put_user_asm64((u64)x,ptr)

willy just removed the (u32) cast and things seem to work for him.

>Do you need the (u64) cast?

...
> -static inline void __put_kernel_asm64(u64 x, void *ptr)
...
> +#define __put_kernel_asm64(x, ptr)                         \
...

Why replace the static inline with a macro?
static inline provides type checki
>g and
type "coercion" when it's not exactly right.

> +       __asm__ __volatile__ (                              \
> +               "\n1:\tstw\t%2,0(%1)\n"                     \
> +               "2:\tstw\t%R2,4(%1)\n"                      \


>hat is "%R2" intended to be?
Randolph pointed out this is broken before and I was wrong
to commit this chunk to the 2.4 tree (I'm working on
removing it now).

thanks,
grant
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>st
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Hello Grant,

> netperf home is netperf.org.

Yes I check and the sources in debian (non-free tree) are the last one alailable
near netperf.org.

> It does run/build on parisc. I've used it before.

Yes, I check it at the office on a b180 :) (dpkg-buildpackage after
an apt-get source netperf; i don't see why it is not pre-build, well doesn't
matter)

>Note that with B180, I can only get about 1MB/s throughput max.
The same here at the office.

>With C3000 I get about 5 or 6 MB/s 100BT link.
What's up, if you connect it via a 10BT hub (but don't reboot and don't
restart or reset the interface). That should be what hapen on my pc box
(but I couldn't verify).

>Your network performance numbers are pretty far off from that but
>there might be other factors involved.

Well trying to help to fix fdisk in 2.6, I don't have time to install netperf
on my C110, sorry.
Any way, a big part of the problem should come from the bad auto-configuration:
As explained before, I start up first my pc (to get a minicom 'console').
As it is setup with auto-negociation and the c110 is not yet pw up, the
nic should be set at 100/full-duplex. Then when I boot the c110, the nic
is setup with the best of its availability: 10/half-duplex.

That seems to be confirm when I launch '/etc/init.d/networking stop and
latter start (restart don't seems to have same effect but again I couldn't
verify yet) on the pc,then I can log peack of 350k/s (that is already better
but that should be the limit of the adsl at this moment).
Another limits seems then to come from squid's caching which drop down flow
to about 100K/s.

So I still have to test ft without squid on the pc, with midle and big size
file, with get and put with various protocol from the two platform to confirm
this hypothesis (obvioulsy another way would be to use a 100bt router or
switch, but I couldn't get any one, and it would need to much time for me
to learn this
os).


>I expect mem copy routines are saturating the CPU and thrashing
>the data cache.  The tulip driver copies the entire buffer from
>where the card DMA'd to the skbuff in order to "bias" the buffer
>by 2 bytes. This avoids un-aligned data access in the "common" TCP case.
>Adding "unaligned access" macros to the "common" networking code
>path has been discussed and rejected (again) in the past month or so.
>Linus himself has rejected such proposals in the past to.
>
>If you twiddle the tulip driver to NOT copy all the data for
>packets > 512 bytes, the kernel will tell you when/where the network
>stack makes unaligned accesses. You can fix those and keep that as
>a local patch. I'd be interested in hearing the netperf (or httperf)
>numbers with such a patch when compared to the current behavior.
>
Ok I will try it first.

>thanks,
>grant
>
Thanks to your attention,
    Joel





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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] C110 builtin nic slow?
Date: Mon, 10 Nov 2003 13:31:45 +0100
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To: "Grant Grundler" <grundler@parisc-linux.org>
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Sorry for auto-reply but I just remember that on the c110 the builtin nic
is:
"8. Raven T' Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x32,

0x0, 0x8a"
ie a Lasi_82596 (as Matthew mentioned in a previous mail).

That you look for that stuff in that code :)

Joel


>-- Original Message --
>From: "Joel Soete" <soete.joel@tiscali.be>
>To: "Grant Grundler" <grundler@parisc-linux.org>
>Cc: "parisc-linux" <parisc-linux@lists.parisc-linux.org>
>Date: Mon, 10 Nov 2003 12:10:46 +0100
>Subject: Re: [parisc-linux] C110 builtin nic slow?
>
>
>Hello Grant,

> netperf home is netperf.org.

Yes I check and the sources in debian (non-free tree) are the last one alailable
near netperf.org.

> It does run/build on parisc. I've used it before.

Yes, I check it at the office on a b180 :) (
>pkg-buildpackage after
an apt-get source netperf; i don't see why it is not pre-build, well doesn't
matter)

>Note that with B180, I can only get about 1MB/s throughput max.
The same here at the office.

>With C3000 I get about 5 or 6 MB/s 100BT
>link.
What's up, if you connect it via a 10BT hub (but don't reboot and don't
restart or reset the interface). That should be what hapen on my pc box
(but I couldn't verify).

>Your network performance numbers are pretty far off from that but
>th
>re might be other factors involved.

Well trying to help to fix fdisk in 2.6, I don't have time to install netperf
on my C110, sorry.
Any way, a big part of the problem should come from the bad auto-configuration:
As explained before, I start up f
>rst my pc (to get a minicom 'console').
As it is setup with auto-negociation and the c110 is not yet pw up, the
nic should be set at 100/full-duplex. Then when I boot the c110, the nic
is setup with the best of its availability: 10/half-duplex.

T
>at seems to be confirm when I launch '/etc/init.d/networking stop and
latter start (restart don't seems to have same effect but again I couldn't
verify yet) on the pc,then I can log peack of 350k/s (that is already better
but that should be the limi
> of the adsl at this moment).
Another limits seems then to come from squid's caching which drop down flow
to about 100K/s.

So I still have to test ft without squid on the pc, with midle and big size
file, with get and put with various protocol fr
>m the two platform to confirm
this hypothesis (obvioulsy another way would be to use a 100bt router or
switch, but I couldn't get any one, and it would need to much time for me
to learn this
os).


>I expect mem copy routines are saturating the 
>PU and thrashing
>the data cache.  The tulip driver copies the entire buffer from
>where the card DMA'd to the skbuff in order to "bias" the buffer
>by 2 bytes. This avoids un-aligned data access in the "common" TCP case.
>Adding "unaligned access"
>macros to the "common" networking code
>path has been discussed and rejected (again) in the past month or so.
>Linus himself has rejected such proposals in the past to.
>
>If you twiddle the tulip driver to NOT copy all the data for
>packets > 512
>bytes, the kernel will tell you when/where the network
>stack makes unaligned accesses. You can fix those and keep that as
>a local patch. I'd be interested in hearing the netperf (or httperf)
>numbers with such a patch when compared to the current 
>ehavior.
>
Ok I will try it first.

>thanks,
>grant
>
Thanks to your attention,
    Joel





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>onde.

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From - Thu Nov 08 21:29:54 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] C110 builtin nic slow?
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Xref: news.gmane.org gmane.linux.ports.parisc:20061

Grant,

Sorry again, but having find this interesting stuff in 82596.c:
---------><---------
[...]
                        /* Check if the packet is long enough to just accept
                         * without copying to a properly sized skbuff.
                         */

                        if (pkt_len > rx_copybreak) {
                                struct sk_buff *newskb;
[...]
                        }
                        else
                                skb = dev_alloc_skb(pkt_len + 2);

[...]
---------><---------
This seems well what you describe?
and more:
---------><---------
[...]
/* Copy frames shorter than rx_copybreak, otherwise pass on up in
 * a full sized sk_buff.  Value of 100 stolen from tulip.c (!alpha).
 */
static int rx_copybreak = 100;
[...]
---------><---------
and finaly:
---------><---------
/*
[...]
   TBD:
   [...]
   * performace test to tune rx_copybreak
[...]
---------><---------

(I just copy as read preformace and not performance as my mind abuse :) )

This last notice seems what I am loocking for?
Have you a better idea then try and test (ie rx_copybreak=512, test, rx_copybreak=256,
... and btw rx_copybreak = PKT_BUF_SZ == 1536)?
Or is it better to tiddle code before?

Thanks for additional advise,
    Joel

>-- Original Message --
>From: "Joel Soete" <soete.joel@tiscali.be>
>To: "Grant Grundler" <grundler@parisc-linux.org>
>Cc: "parisc-linux" <parisc-linux@lists.parisc-linux.org>
>Date: Mon, 10 Nov 2003 13:31:45 +0100
>Subject: Re: [parisc-linux] C110 builtin nic slow?
>
>
>Sorry for auto-reply but I just remember that on the c110 the builtin nic
is:
"8. Raven T' Core LAN (802.3) (10) at 0xffd07000 [8/16/6], versions 0x32,

0x0, 0x8a"
ie a Lasi_82596 (as Matthew mentioned in a previous mail).

That you look for tha
> stuff in that code :)

Joel




-------------------------------------------------------------------------
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On Mon, Nov 10, 2003 at 10:51:32AM +0100, Joel Soete wrote:
> That is Ok for me, Do you still have the patch to revert it?

yes - I'll test/commmit that this morning.

thanks,
grant


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On Mon, Nov 10, 2003 at 03:00:37PM +0100, Joel Soete wrote:
>                         if (pkt_len > rx_copybreak) {
>                                 struct sk_buff *newskb;

yup - the rx_copybreak support is exactly what I'm talking about.
tulip driver has similar support.

> /* Copy frames shorter than rx_copybreak, otherwise pass on up in
>  * a full sized sk_buff.  Value of 100 stolen from tulip.c (!alpha).
>  */
> static int rx_copybreak = 100;

The comment is wrong. Tulip uses 1518 for nearly everything but x86.
ie it copies all packets since the MTU is <= 1518.


> This last notice seems what I am loocking for?
> Have you a better idea then try and test (ie rx_copybreak=512, test, rx_copybreak=256,
> ... and btw rx_copybreak = PKT_BUF_SZ == 1536)?
> Or is it better to tiddle code before?

I don't know. It depends on if/when the misaligned access happens.
It's possible the misaligned access is less expensive than
the full copy on your machine.

grant


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On Mon, Nov 10, 2003 at 01:31:45PM +0100, Joel Soete wrote:
> ie a Lasi_82596 (as Matthew mentioned in a previous mail).

yeah - that's not going to perform as well as tulip.
And 10-Half is going to be substantially slower.
Sounds like it has a bug in the negotiation.

grant


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Randolph Chung wrote:
>>What is "%R2" intended to be?
>>Randolph pointed out this is broken before and I was wrong
>>to commit this chunk to the 2.4 tree (I'm working on
>>removing it now).
> 
> 
> Just a clarification:
> 
> %R2 is not *wrong* -- it points to the right side of argument register 
> 2 (jda explained this in an earlier thread), but I am not 100% sure 
> %R2 will do the right thing for a 32-bit build though -- if you are 
> running on a pa1.1 machine and the register is only 32-bit, does %R2 
> automatically do the right thing with 64-bit arguments?  I guess it's 
> easy enough to tell by looking at the code gcc generates...
> 

Good idea and just for curiosity (i don't want to insist to maintain 
some line of code which soon or later would have to be change ), I can 
try to find back a test case I used to prepare. (Just be patient)

> anyway, i think we should stick with the inline version of the code
> too....
> 
> thx
> randolph

thx also for attention,
	Joel



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Grant Grundler wrote:
> On Mon, Nov 10, 2003 at 01:31:45PM +0100, Joel Soete wrote:
> 
>>ie a Lasi_82596 (as Matthew mentioned in a previous mail).
> 
> 
> yeah - that's not going to perform as well as tulip.
> And 10-Half is going to be substantially slower.
> Sounds like it has a bug in the negotiation.
Hmm I could verify, i would have to had ethtool support.
btw is somebody knows a driver which support it (i test without succes 
3com an hp100 driver).

Thx,
	Joel




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(sorry for auto-reply) but I find effectively interesting stuff:
man ethtool mentioned:  /usr/share/doc/ethtool/README.Debian

in which it seems that is:
Last column show current capabilities of these drivers:
   D = get driver infos
   C = get/set card settings
   W = get/set wake-on-lan settings
   M = get/set message-level
   L = get link status
   R = restart autonegotiation
   G = get registers
   P = get EEPROM

An 'x' indicates that the feature is available, a '.' indicates not.

Ethernet card family                        linux driver    DCWMLRGP
--------------------------------------------------------------------
[...]
NatSemi DP8381x series                      natsemi         xxxxxxxx
[...]

which own the most of ethtool support.

Again sorry for anoyance,
	Joel

Joel Soete wrote:
> 
> 
> Grant Grundler wrote:
> 
>> On Mon, Nov 10, 2003 at 01:31:45PM +0100, Joel Soete wrote:
>>
>>> ie a Lasi_82596 (as Matthew mentioned in a previous mail).
>>
>>
>>
>> yeah - that's not going to perform as well as tulip.
>> And 10-Half is going to be substantially slower.
>> Sounds like it has a bug in the negotiation.
> 
> Hmm I could verify, i would have to had ethtool support.
> btw is somebody knows a driver which support it (i test without succes 
> 3com an hp100 driver).
> 
> Thx,
>     Joel
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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i've been trying to get the framebuffer to work but so far havent had any=20
luck ... i was unable to locate anyone who had a similar problem ...

Display controller: Hewlett-Packard Comp A4977A Visualize EG (rev 3).
machine is a C360 ... STI Console works great ...
tried 2.4.22-pa13 and 2.6.0-test9-pa5 with same exact results

the frame buffer draws all messed up however ... it only draws on the right=
=20
quarter of the screen ... the rest of the screen still contains the buffere=
d=20
video as found when the computer was booted (firmware output along with pal=
o=20
stuff) ... the colors are all skewed, basically white is purple along with =
a=20
few other bit inversions of some sort ...
also, each line is drawn incorrectly ... it's like each has been split in h=
alf=20
horizontally and then swapped ...
i can get X to load, but again it draws it all messed up in the right quart=
er=20
on the screen

i wish i could post a frame buffer grab, but fbgrab doesnt support 8bit and=
=20
fbscreenshot likes to segfault when writing the png to disk.

any ideas what i'm missing ?
or is the fbdriver the only way i can get X and running ?
=2Dmike

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From: Ruediger Scholz <rscholz@hrzpub.tu-darmstadt.de>
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Subject: Re: [parisc-linux] fdisk problems 2.4 <-> 2.6
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Thanks for all your help! Everything works fine for me now.

Greetings,
    Ruediger



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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] framebuffer drawing incorrectly ?
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please send your xfonfig-4 and your dmesg file.

Joel

Mike Frysinger wrote:
> i've been trying to get the framebuffer to work but so far havent had any 
> luck ... i was unable to locate anyone who had a similar problem ...
> 
> Display controller: Hewlett-Packard Comp A4977A Visualize EG (rev 3).
> machine is a C360 ... STI Console works great ...
> tried 2.4.22-pa13 and 2.6.0-test9-pa5 with same exact results
> 
> the frame buffer draws all messed up however ... it only draws on the right 
> quarter of the screen ... the rest of the screen still contains the buffered 
> video as found when the computer was booted (firmware output along with palo 
> stuff) ... the colors are all skewed, basically white is purple along with a 
> few other bit inversions of some sort ...
> also, each line is drawn incorrectly ... it's like each has been split in half 
> horizontally and then swapped ...
> i can get X to load, but again it draws it all messed up in the right quarter 
> on the screen
> 
> i wish i could post a frame buffer grab, but fbgrab doesnt support 8bit and 
> fbscreenshot likes to segfault when writing the png to disk.
> 
> any ideas what i'm missing ?
> or is the fbdriver the only way i can get X and running ?
> -mike



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From: tsbogend@alpha.franken.de (Thomas Bogendoerfer)
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Subject: Re: [parisc-linux] framebuffer drawing incorrectly ?
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On Mon, Nov 10, 2003 at 04:46:22PM -0500, Mike Frysinger wrote:
> the frame buffer draws all messed up however ... it only draws on the right 
> quarter of the screen ... the rest of the screen still contains the buffered 

try to turn off double buffering.

> or is the fbdriver the only way i can get X and running ?

yes.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]


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From: tsbogend@alpha.franken.de (Thomas Bogendoerfer)
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Subject: Re: [parisc-linux] what's up with the ipc syscalls?
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On Mon, Nov 03, 2003 at 04:41:19PM -0500, Carlos O'Donell wrote:
> On Mon, Nov 03, 2003 at 09:56:01AM +0100, Thomas Bogendoerfer wrote:
[ stuff about broken ipc syscalls in 2.6 ...]

I had some thoughts about the conversion stuff, I've added to work
around problems introduced because of the change of some structures in
glibc/kernel. I finally realized, that these conversion only works,
if the "old glibc" is still installed together with the old binary.
That's because the newer glibcs don't set the IPC_64 bit when doing 
the syscall, but the old binary still uses the wrong structs, so the
conversion routine never triggers. I think it's really time to remove that
crap. Below is an compiled but not booted patch, which removes it and also
forward ports the necessary bits in ipc/util.c from 2.4. 

If someone also wants to change glibc, feel free. I still think changing
glibc is a bad idea, because this new glibc won't work with a current 2.4
kernel.

Thomas.


Index: arch/parisc/kernel/sys_parisc.c
===================================================================
RCS file: /home/cvs/parisc/linux-2.6/arch/parisc/kernel/sys_parisc.c,v
retrieving revision 1.15
diff -u -p -r1.15 sys_parisc.c
--- arch/parisc/kernel/sys_parisc.c	1 Nov 2003 23:44:02 -0000	1.15
+++ arch/parisc/kernel/sys_parisc.c	10 Nov 2003 23:17:53 -0000
@@ -241,108 +241,6 @@ asmlinkage ssize_t parisc_readahead(int 
 }
 
 /*
- * FIXME, please remove this crap as soon as possible
- *
- * This is here to fix up broken glibc structures, 
- * which are already fixed in newer glibcs
- */
-#include <linux/msg.h>
-#include <linux/sem.h>
-#include <linux/shm.h>
-#include "sys32.h"
-
-struct broken_ipc_perm
-{
-    key_t key;			/* Key.  */
-    uid_t uid;			/* Owner's user ID.  */
-    gid_t gid;			/* Owner's group ID.  */
-    uid_t cuid;			/* Creator's user ID.  */
-    gid_t cgid;			/* Creator's group ID.  */
-    unsigned short int mode;		/* Read/write permission.  */
-    unsigned short int __pad1;
-    unsigned short int seq;		/* Sequence number.  */
-    unsigned short int __pad2;
-    unsigned long int __unused1;
-    unsigned long int __unused2;
-};
-		    
-struct broken_shmid64_ds {
-	struct broken_ipc_perm	shm_perm;	/* operation perms */
-	size_t			shm_segsz;	/* size of segment (bytes) */
-#ifndef __LP64__
-	unsigned int		__pad1;
-#endif
-	__kernel_time_t		shm_atime;	/* last attach time */
-#ifndef __LP64__
-	unsigned int		__pad2;
-#endif
-	__kernel_time_t		shm_dtime;	/* last detach time */
-#ifndef __LP64__
-	unsigned int		__pad3;
-#endif
-	__kernel_time_t		shm_ctime;	/* last change time */
-	__kernel_pid_t		shm_cpid;	/* pid of creator */
-	__kernel_pid_t		shm_lpid;	/* pid of last operator */
-	unsigned int		shm_nattch;	/* no. of current attaches */
-	unsigned int		__unused1;
-	unsigned int		__unused2;
-};
-
-static void convert_broken_perm (struct broken_ipc_perm *out, struct ipc64_perm *in)
-{
-	out->key  = in->key;
-	out->uid  = in->uid;
-	out->gid  = in->gid;
-	out->cuid = in->cuid;
-	out->cgid = in->cgid;
-	out->mode = in->mode;
-	out->seq  = in->seq;
-}
-
-static int copyout_broken_shmid64(struct broken_shmid64_ds *buf, struct shmid64_ds *sbuf)
-{
-	struct broken_shmid64_ds tbuf;
-	
-	memset(&tbuf, 0, sizeof tbuf);
-	convert_broken_perm (&tbuf.shm_perm, &sbuf->shm_perm);
-	tbuf.shm_segsz = sbuf->shm_segsz;
-	tbuf.shm_atime = sbuf->shm_atime;
-	tbuf.shm_dtime = sbuf->shm_dtime;
-	tbuf.shm_ctime = sbuf->shm_ctime;
-	tbuf.shm_cpid = sbuf->shm_cpid;
-	tbuf.shm_lpid = sbuf->shm_lpid;
-	tbuf.shm_nattch = sbuf->shm_nattch;
-	return copy_to_user(buf, &tbuf, sizeof tbuf) ? -EFAULT : 0;
-}
-
-int sys_msgctl_broken(int msqid, int cmd, struct msqid_ds *buf)
-{
-	return sys_msgctl (msqid, cmd & ~IPC_64, buf);
-}
-
-int sys_semctl_broken(int semid, int semnum, int cmd, union semun arg)
-{
-	return sys_semctl (semid, semnum, cmd & ~IPC_64, arg);
-}
-
-int sys_shmctl_broken(int shmid, int cmd, struct shmid64_ds *buf)
-{
-	struct shmid64_ds sbuf;
-	int err;
-
-	if (cmd & IPC_64) {
-		cmd &= ~IPC_64;
-		if (cmd == IPC_STAT || cmd == SHM_STAT) {
-			KERNEL_SYSCALL(err, sys_shmctl, shmid, cmd, (struct shmid_ds *)&sbuf);
-			if (err == 0)
-				err = copyout_broken_shmid64((struct broken_shmid64_ds *)buf, &sbuf);
-			return err;
-		}
-	}
-	return sys_shmctl (shmid, cmd, (struct shmid_ds *)buf);
-}
-
-/*
  * This changes the io permissions bitmap in the current task.
  */
 asmlinkage int sys_ioperm(unsigned long from, unsigned long num, int turn_on)
Index: arch/parisc/kernel/sys_parisc32.c
===================================================================
RCS file: /home/cvs/parisc/linux-2.6/arch/parisc/kernel/sys_parisc32.c,v
retrieving revision 1.11
diff -u -p -r1.11 sys_parisc32.c
--- arch/parisc/kernel/sys_parisc32.c	28 Sep 2003 04:04:52 -0000	1.11
+++ arch/parisc/kernel/sys_parisc32.c	10 Nov 2003 23:19:00 -0000
@@ -1352,12 +1352,10 @@ asmlinkage int sys32_lseek(unsigned int 
 	return sys_lseek(fd, offset, origin);
 }
 
-asmlinkage long sys32_semctl_broken(int semid, int semnum, int cmd, union semun arg)
+asmlinkage long sys32_semctl(int semid, int semnum, int cmd, union semun arg)
 {
         union semun u;
 	
-	cmd &= ~IPC_64; /* should be removed together with the _broken suffix */
-
         if (cmd == SETVAL) {
                 /* Ugh.  arg is a union of int,ptr,ptr,ptr, so is 8 bytes.
                  * The int should be in the first 4, but our argument
Index: arch/parisc/kernel/syscall_table.S
===================================================================
RCS file: /home/cvs/parisc/linux-2.6/arch/parisc/kernel/syscall_table.S,v
retrieving revision 1.2
diff -u -p -r1.2 syscall_table.S
--- arch/parisc/kernel/syscall_table.S	2 Nov 2003 04:40:50 -0000	1.2
+++ arch/parisc/kernel/syscall_table.S	10 Nov 2003 23:18:46 -0000
@@ -260,15 +260,15 @@
 	ENTRY_COMP(recvmsg)
 	ENTRY_SAME(semop)		/* 185 */
 	ENTRY_SAME(semget)
-	ENTRY_DIFF(semctl_broken)
+	ENTRY_DIFF(semctl)
 	ENTRY_DIFF(msgsnd)
 	ENTRY_DIFF(msgrcv)
 	ENTRY_SAME(msgget)		/* 190 */
-	ENTRY_SAME(msgctl_broken)
+	ENTRY_SAME(msgctl)
 	ENTRY_SAME(shmat_wrapper)
 	ENTRY_SAME(shmdt)
 	ENTRY_SAME(shmget)
-	ENTRY_SAME(shmctl_broken)	/* 195 */
+	ENTRY_SAME(shmctl)		/* 195 */
 	ENTRY_SAME(ni_syscall)		/* streams1 */
 	ENTRY_SAME(ni_syscall)		/* streams2 */
 	ENTRY_SAME(lstat64)
Index: ipc/util.c
===================================================================
RCS file: /home/cvs/parisc/linux-2.6/ipc/util.c,v
retrieving revision 1.3
diff -u -p -r1.3 util.c
--- ipc/util.c	8 Oct 2003 20:53:06 -0000	1.3
+++ ipc/util.c	10 Nov 2003 23:19:41 -0000
@@ -509,7 +509,7 @@ int ipc_checkid(struct ipc_ids* ids, str
 	return 0;
 }
 
-#if !defined(__ia64__) && !defined(__x86_64__)
+#if !defined(__ia64__) && !defined(__x86_64__) && !defined(__hppa__)
 
 /**
  *	ipc_parse_version	-	IPC call version
Index: ipc/util.h
===================================================================
RCS file: /home/cvs/parisc/linux-2.6/ipc/util.h,v
retrieving revision 1.1
diff -u -p -r1.1 util.h
--- ipc/util.h	29 Jul 2003 17:02:19 -0000	1.1
+++ ipc/util.h	10 Nov 2003 23:20:13 -0000
@@ -56,7 +56,7 @@ int ipc_checkid(struct ipc_ids* ids, str
 void kernel_to_ipc64_perm(struct kern_ipc_perm *in, struct ipc64_perm *out);
 void ipc64_perm_to_ipc_perm(struct ipc64_perm *in, struct ipc_perm *out);
 
-#if defined(__ia64__) || defined(__x86_64__)
+#if defined(__ia64__) || defined(__x86_64__) || defined(__hppa__)
   /* On IA-64, we always use the "64-bit version" of the IPC structures.  */ 
 # define ipc_parse_version(cmd)	IPC_64
 #else
-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]


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Le lundi, 10 nov 2003, =E0 22:46 Europe/Paris, Mike Frysinger a =E9crit =
:
>
> i wish i could post a frame buffer grab, but fbgrab doesnt support=20
> 8bit and
> fbscreenshot likes to segfault when writing the png to disk.
>

you can try to take pics with a digital camera or a webcam, if you have
any...

see: this is what we got with sticon init on 64bit kernel on B2000:
http://www.pateam.org/images/cell/pictures/B2000/B2000_sti_init800.jpg

Maybe this could help illustrating what you see?


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/



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On Mon, 10 Nov 2003, Grant Grundler wrote:

> On Mon, Nov 10, 2003 at 01:31:45PM +0100, Joel Soete wrote:
> > ie a Lasi_82596 (as Matthew mentioned in a previous mail).
>
> yeah - that's not going to perform as well as tulip.
> And 10-Half is going to be substantially slower.
> Sounds like it has a bug in the negotiation.

Very likely!

My C200 is also very picky whether to enable 100MBit or not.
I'm using a no-name 100MBit-Switch, and it works fine for all
5 other PCs in my house).

I was not able to force 100MBit by changing the settings in the
PDC, but the following DID work:

> mii-tool -A 100baseTx,10baseT eth0


On my C3000 I don't have these problems.

Take a look in the mailing-list archive (about a year ago I guess and
later I found it also here: http://www.unixnerd.demon.co.uk/hp_unix.html).

Note that this is a problem with the C2x0, but I guess it might be
also true for the entire Cxxx series.


Max


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On Monday 10 November 2003 17:35, you wrote:
> please send your xfonfig-4 and your dmesg file.

http://wh0rd.de/mike/hppa-dmesg
http://wh0rd.de/mike/hppa-XF86Config-4
http://wh0rd.de/mike/hppa-fbcon-pic.jpg
the pic is a little blurry but you can see that the white text is from the=
=20
hppa firmware/palo while the purple text is from the bootup ... also, it=20
seems that the buffer is swapped in the middle ... the lower half of the=20
purple text is actually displayed first when scrolling back through the=20
buffer ...
=2Dmike

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From: Joel Soete <soete.joel@tiscali.be>
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Joel Soete wrote:
> 
> 
>>
>> %R2 is not *wrong* -- it points to the right side of argument register 
>> 2 (jda explained this in an earlier thread), but I am not 100% sure 
>> %R2 will do the right thing for a 32-bit build though -- if you are 
>> running on a pa1.1 machine and the register is only 32-bit, does %R2 
>> automatically do the right thing with 64-bit arguments?  I guess it's 
>> easy enough to tell by looking at the code gcc generates...
>>
> 
> Good idea and just for curiosity (i don't want to insist to maintain 
> some line of code which soon or later would have to be change ), I can 
> try to find back a test case I used to prepare. (Just be patient)
> 
So here is my test-case:
---------><---------
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

#define KERNEL_DS       ((mm_segment_t){0})
#define USER_DS         ((mm_segment_t){1})

#define segment_eq(a,b) ((a).seg == (b).seg)

#define get_ds()        (KERNEL_DS)
#define get_fs()        (current->addr_limit)
#define set_fs(x)       (current->addr_limit = (x))

#define put_user __put_user

#define STD_USER(x, ptr)  __put_user_asm_64(x, ptr)

#define __put_user(x,ptr)                                       \
({                                                              \
         register long __pu_err __asm__ ("r8") = 0;              \
                                                                 \
             switch (sizeof(*(ptr))) {                           \
             case 1: __put_user_asm("stb",x,ptr); break;         \
             case 2: __put_user_asm("sth",x,ptr); break;         \
             case 4: __put_user_asm("stw",x,ptr); break;         \
             case 8: STD_USER(x,ptr); break;         \
             default: printf("Bug"); break;                              \
             }                                                   \
                                                                 \
         __pu_err;                                               \
})

/*
  * The "__put_user/kernel_asm()" macros tell gcc they read from memory
  * instead of writing. This is because they do not write to any memory
  * gcc knows about, so there are no aliasing issues.
  */

#define __put_user_asm(stx,x,ptr)                           \
         __asm__ __volatile__ (                              \
                 "\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
                 "2:\n"                                      \
                 "\t.section __ex_table,\"a\"\n"             \
                  "\t.word\t1b\n"                            \
                  "\t.word\t(2b-1b)+1\n"                     \
                  "\t.previous"                              \
                 : "=r"(__pu_err)                            \
                 : "r"(ptr), "r"(x), "0"(__pu_err))

#define __put_user_asm_64(x, ptr)                      \
         __asm__ __volatile__ (                              \
                 "\n1:\tstw\t%2,0(%%sr3,%1)\n"           \
                 "2:\tstw\t%R2,4(%%sr3,%1)\n"           \
                 "3:\n"                                      \
                 "\t.section __ex_table,\"a\"\n"             \
                  "\t.word\t1b\n"                            \
                  "\t.word\t(3b-1b)+1\n"                     \
                  "\t.word\t2b\n"                            \
                  "\t.word\t(3b-2b)+1\n"                     \
                  "\t.previous"                              \
                 : "=r"(__pu_err)                            \
                 : "r"(ptr), "r"(x), "0"(__pu_err))

typedef unsigned long long u64;
typedef u_int8_t  BOOLEAN;

typedef struct
{
     unsigned char b7, b6, b5, b4, b3, b2, b1, b0;
}
EightBytes;

int main(int argc, char * * argv, char * * env) {

     unsigned long long TU64;
     unsigned long long * PTU64=(unsigned long long *) 
malloc(sizeof(unsigned long long));
     int err;

     union
     {
         unsigned long long U64;
         EightBytes B8;
     }
     Uu64;

     Uu64.U64 = 0xf7f6f5f4f3f2f1f0LL;
     TU64 = Uu64.U64;

     err = put_user(TU64, PTU64);

     printf("TestU64 is of len: %u\n", sizeof(Uu64.U64));
     printf("Address of TestU64: %p\n", &TU64);

     printf("Value of Uu64.U64: %0Lx\n", Uu64.U64);

     printf("Value of Uu64.U64l: %0x\n", (unsigned int) Uu64.U64 );

     printf("Value of Uu64.U64h: %0x\n", (unsigned int) (Uu64.U64 >> 32) );

     printf("Value of Uu64.U64b0: %0x\n", (unsigned char) Uu64.B8.b0 );

     printf("Address of Uu64.U64: %p\n", &(Uu64.U64));
     printf("Address of Uu64.U64b7: %p\n", &(Uu64.B8.b7));
     printf("Address of Uu64.U64b0: %p\n", &(Uu64.B8.b0));

     printf("PTU64 is of len: %u\n", sizeof(*PTU64));
     printf("Address of PTU64: %p\n", PTU64);
     printf("Value of PTU64: %0Lx\n", *PTU64);

     return err;
}
---------><---------

And the generated code by gcc 3.3.2:
[...]
main:
         .PROC
         .CALLINFO FRAME=128,CALLS,SAVE_RP,SAVE_SP,ENTRY_GR=4
         .ENTRY
         stw %r2,-20(%r30)
         copy %r3,%r1
         copy %r30,%r3
         stwm %r1,128(%r30)
         stw %r8,32(%r3)
         stw %r26,-36(%r3)
         stw %r25,-40(%r3)
         stw %r24,-44(%r3)
         ldi 8,%r26
         bl malloc,%r2
         nop
         copy %r28,%r19
         stw %r19,16(%r3)
         ldil L'-202182160,%r20
         ldil L'-134810124,%r19
         ldo R'-134810124(%r19),%r19
         ldo R'-202182160(%r20),%r20
         stw %r19,24(%r3)
         stw %r20,28(%r3)
         ldw 24(%r3),%r19
         ldw 28(%r3),%r20
         stw %r19,8(%r3)
         stw %r20,12(%r3)
         ldi 0,%r8
         ldw 16(%r3),%r21
         ldw 8(%r3),%r19
         ldw 12(%r3),%r20
#APP

1:      stw     %r19,0(%sr3,%r21)
2:      stw     %r20,4(%sr3,%r21)
3:
         .section __ex_table,"a"
         .word   1b
         .word   (3b-1b)+1
         .word   2b
         .word   (3b-2b)+1
         .previous
#NO_APP
         stw %r8,20(%r3)
         ldil LR'.LC1,%r19
         ldo RR'.LC1(%r19),%r26
         ldi 8,%r25
         bl printf,%r2
         nop
         ldil LR'.LC2,%r19
[...]

Please let me know if I miss something ;)

Cheers,
	Joel





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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] C110 builtin nic slow?
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Hi Max,

M. Grabert wrote:
> On Mon, 10 Nov 2003, Grant Grundler wrote:
> 
> 
>>On Mon, Nov 10, 2003 at 01:31:45PM +0100, Joel Soete wrote:
>>
>>>ie a Lasi_82596 (as Matthew mentioned in a previous mail).
>>
>>yeah - that's not going to perform as well as tulip.
>>And 10-Half is going to be substantially slower.
>>Sounds like it has a bug in the negotiation.
> 
> 
> Very likely!
> 
> My C200 is also very picky whether to enable 100MBit or not.
> I'm using a no-name 100MBit-Switch, and it works fine for all
> 5 other PCs in my house).
> 
> I was not able to force 100MBit by changing the settings in the
> PDC, but the following DID work:
> 
> 
>>mii-tool -A 100baseTx,10baseT eth0
> 
Ah interesting:
on my pc,
  # mii-tool
SIOCGMIIPHY on 'eth0' failed: Operation not supported
eth1: 10 Mbit, half duplex, no link

and eth1 is the nic I use to connect my c110 :) (don't see what no link 
means but that is the right setup that I need with c110)

otc on the c110:
# mii-tool
SIOCGMIIPHY on 'eth0' failed: Operation not supported
no MII interfaces found
:(

Thx a lot,
	Joel



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Grant Grundler wrote:
> On Mon, Nov 10, 2003 at 03:00:37PM +0100, Joel Soete wrote:
> 
>>                        if (pkt_len > rx_copybreak) {
>>                                struct sk_buff *newskb;
> 
> 
> yup - the rx_copybreak support is exactly what I'm talking about.
> tulip driver has similar support.
> 
> 
>>/* Copy frames shorter than rx_copybreak, otherwise pass on up in
>> * a full sized sk_buff.  Value of 100 stolen from tulip.c (!alpha).
>> */
>>static int rx_copybreak = 100;
> 
> 
> The comment is wrong. Tulip uses 1518 for nearly everything but x86.
> ie it copies all packets since the MTU is <= 1518.
> 
Correct :)

I so try rx_copybreak = 1518

and also run from pc netperf (the script 
/usr/share/doc/netperf/examples/snapshot_script palin)

but on c110 I noticed many (with rx_copybreak = 100 and rx_copybreak = 
1518):
do_page_fault() pid=882 command='netserver' type=15 address=0x0000001c
...
:(

and i never get any miss alignement messages?

I restart this test this morning but in the contrary way ie from c110:
sh /usr/share/doc/netperf/examples/snapshot_script sid.home
then
Netperf snapshot script started at Tue Nov 11 12:52:15 CET 2003
Starting 56x4 TCP_STREAM tests at Tue Nov 11 12:52:52 CET 2003

------------------------------------
Testing with the following command line:
/usr/bin/netperf -t TCP_STREAM -l 60 -H sid.home -i 10,3 -I 99,5 -- -s 
57344 -S 57344 -m 4096


seems to send some pkt and finaly hung?

hmm I will try to run it under gdb and so hope to discover what append.

Cheers,
	Joel



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FROM: Miss THEMBI TENDAI 

SUBJECT:Please Help 

EMAIL FROM: thembi79@zwallet.com 

REPLY EMAIL: thembi79@zwallet.com



Dear Sir/Madam, 

You may be surprised to receive this letter from me, Since you do not know me personally "My Name is THEMBI TENDAI" The purpose of my introduction is that Before the death of my father, he had taken me to Johannesburg to deposit the sum of US6 Million (Six Million United States dollars),in one of the private security company, as he foresaw the looming danger in Zimbabwe this money was deposited in a box as gem stones to avoid much demurrage from security company. This amount was meant for the purchase of new machines and chemicals for the Farms and establishment of new farms in Swaziland. This land problem came when Zimbabwean President Mr. Robert Mugabe introduced a new Land Act Reform wholly affecting the rich white farmers and some few black Farmers and this resulted to the killing and 
 mob action by Zimbabwean war veterans and some lunatics in the society. In fact a lot of people were killed because of this Land reform Act for which my father " Mudada Abba " was one of the victims. It is against this back
round that, I and my Mother and three   younger ones fled Zimbabwe for fear of our lives and I currently staying in the Netherlands in a village called Zwolle, where my family are seeking political asylum and more so I have decided to transfer my father's money to a more reliable foreign account. As the eldest daughter of my father, I am saddled with the responsibility of seeking a genuine foreign account where this money could be transferred without the knowledge of my government who are bent on taking everything we have got. The South African government seems to be playing along with them. I am faced with the dilemma of moving this amount of money out of South Africa for fear of going through the same experience in future, both countries have similar political history. 

As the Eldest daughter, I am seeking for a partner who I have to entrust my future and that of my family in his hands, I must let you know that this transaction is risk free. If you accept to assist me and my family, all I want you to do for me, is to make an arrangements with the security company to clear the consignment (funds) from their affiliate office here in the Netherlands as I have already given directives for the consignment to be brought to the Netherlands from South Africa.But before then all modalities will have to be put in place like change of ownership to the consignment and more importantly this money I intend to use for investment. I have two options for you. Firstly you can choose to have certain percentage of the money for nominating your account for this transaction. O
 r you can go into Partnership with me for the proper profitable investment of the money in your country. Whichever the option you want, feel free to notify me. If you do not prefer a partnership I am willing to give you 10%
of the money while the remaining 90% will be for my investment in your country. Should you which to assist me, please furnish me with your telephone and fax number me with the above via e-mail while I implore you to maintain the absolute secrecy required in this transaction. 

God Bless, 

MISS THEMBI TENDAI


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Grant Grundler wrote:
> On Mon, Nov 10, 2003 at 06:09:56PM -0700, Grant Grundler wrote:
> 
>>Log message:
>>2.4.22-pa15 revert __put_kernel_asm64 to static inline function
>>
>>my bad. I overlooked this when committing the code.
>>I prefer inline functions over macros for type checking/covercion.
>>I don't like the use of "R2" for upper half of u64 data type
>>since it's easy to overlook and not commonly used in parisc port.
> 
That was just why I posted it as a _remainder_, an 'interesting' stuff 
not usual (I spent a lot of time to find how to do with hppa as it was 
done on other platform). But I agree that confused even the best :)

Thx,
	Joel



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Mike,


Mike Frysinger wrote:
> On Monday 10 November 2003 17:35, you wrote:
> 
>>please send your xfonfig-4 and your dmesg file.
> 
> 
> http://wh0rd.de/mike/hppa-dmesg
> http://wh0rd.de/mike/hppa-XF86Config-4

All seems ok. I just notice a small difference with my "Display" definition:
[...]
Section "Screen"
         Identifier      "Default Screen"
         Device          "HPA208LC1024"
         Monitor         "Targa"
         DefaultDepth    8
         SubSection "Display"
                 Depth           1
                 Modes           "1280x1024"
         EndSubSection
EndSection
[...]

you added:
		Virtual		0 0
		ViewPort	0 0

well I don't know exactely what is realy makes and I presume that you 
already test without (commented) those lines?

> http://wh0rd.de/mike/hppa-fbcon-pic.jpg
> the pic is a little blurry but you can see that the white text is from the 
> hppa firmware/palo while the purple text is from the bootup ... also, it 
> seems that the buffer is swapped in the middle ... the lower half of the 
> purple text is actually displayed first when scrolling back through the 
> buffer ...
> -mike
hmm, i never see such behaviour before but it seems that electronic 
signals emitted by hp system are not compatible with your screen (bad 
cable, adapter?)??
[For my part I also try, here at home with a foreign screen (not hp, i 
mean) but it doesn't work very well (at each reboot I was obliged to fix 
the pdc screen definition but it was working fine with a hp screen), so 
i don't even test XFree more then the time of a login...)]
Before you install Linux, do you have the opportunity to check if it was 
working with hpux X11 hpview or cde?
Or do you have some opportunity to test with a hp screen?
(or the graphical controler is broken?)

Sorry couldn't help you more.

Good luck,
	Joel

Joel



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Subject: Re: [parisc-linux] framebuffer drawing incorrectly ?
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On Tuesday 11 November 2003 11:27, Joel Soete wrote:
> well I don't know exactely what is realy makes and I presume that you
> already test without (commented) those lines?

well the fb is messed up w/out X ... i just mentioned X because thats the r=
eal=20
reason i'm messing around with it ;)
and yes, the viewport settings make no difference

> hmm, i never see such behaviour before but it seems that electronic
> signals emitted by hp system are not compatible with your screen (bad
> cable, adapter?)??
> [For my part I also try, here at home with a foreign screen (not hp, i
> mean) but it doesn't work very well (at each reboot I was obliged to fix
> the pdc screen definition but it was working fine with a hp screen), so
> i don't even test XFree more then the time of a login...)]
> Before you install Linux, do you have the opportunity to check if it was
> working with hpux X11 hpview or cde?
> Or do you have some opportunity to test with a hp screen?
> (or the graphical controler is broken?)

i didnt have a chance to test it ... the box was a server that was given to=
 me=20
thus no display and i didnt really feel like brute forcing the passwords to=
=20
get to the installed HPUX ...
as for the monitor, it's a 19" trintron that i've done resolutions much=20
greater than 1600x1200 with before so i know it's a pretty good monitor ...=
 i=20
dunno about the signals as you mentioned ... but i know the STI Console wor=
ks=20
just dandy :)

perhaps i'll try some random pci cards i got laying around (voodoo/ati) and=
=20
see if i have any luck with them
=2Dmike

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Subject: Re: [parisc-linux] framebuffer drawing incorrectly ?
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> On Tuesday 11 November 2003 11:27, Joel Soete wrote:
> > well I don't know exactely what is realy makes and I presume that you
> > already test without (commented) those lines?
> 
> well the fb is messed up w/out X ... i just mentioned X because thats the r=
> eal=20
> reason i'm messing around with it ;)
> and yes, the viewport settings make no difference

The X config and the mode setting for the card have to match.  You
probably have the card in double buffered mode.  This isn't compatible
with the frame buffer driver.  The selected resolutions also have to match.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Monday 10 November 2003 17:54, you wrote:
> try to turn off double buffering.

that did the trick, thanks everyone
-mike

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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] what's up with the ipc syscalls?
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Thomas Bogendoerfer wrote:
> On Mon, Nov 03, 2003 at 04:41:19PM -0500, Carlos O'Donell wrote:
> 
>>On Mon, Nov 03, 2003 at 09:56:01AM +0100, Thomas Bogendoerfer wrote:
> 
> [ stuff about broken ipc syscalls in 2.6 ...]
> 
> I had some thoughts about the conversion stuff, I've added to work
> around problems introduced because of the change of some structures in
> glibc/kernel. I finally realized, that these conversion only works,
> if the "old glibc" is still installed together with the old binary.
> That's because the newer glibcs don't set the IPC_64 bit when doing 
> the syscall, but the old binary still uses the wrong structs, so the
> conversion routine never triggers. I think it's really time to remove that
> crap. Below is an compiled but not booted patch, which removes it and also
> forward ports the necessary bits in ipc/util.c from 2.4.

I also reach to compile 2.4 with this patch :).

Can you point me out what should I apply as change to glibc?

Thanks,
	Joel

> 
> If someone also wants to change glibc, feel free. I still think changing
> glibc is a bad idea, because this new glibc won't work with a current 2.4
> kernel.
> 
> Thomas.
> 
> 
> Index: arch/parisc/kernel/sys_parisc.c
> ===================================================================
> RCS file: /home/cvs/parisc/linux-2.6/arch/parisc/kernel/sys_parisc.c,v
> retrieving revision 1.15
> diff -u -p -r1.15 sys_parisc.c
> --- arch/parisc/kernel/sys_parisc.c	1 Nov 2003 23:44:02 -0000	1.15
> +++ arch/parisc/kernel/sys_parisc.c	10 Nov 2003 23:17:53 -0000
> @@ -241,108 +241,6 @@ asmlinkage ssize_t parisc_readahead(int 
>  }
>  
>  /*
> - * FIXME, please remove this crap as soon as possible
> - *
> - * This is here to fix up broken glibc structures, 
> - * which are already fixed in newer glibcs
> - */
> -#include <linux/msg.h>
> -#include <linux/sem.h>
> -#include <linux/shm.h>
> -#include "sys32.h"
> -
> -struct broken_ipc_perm
> -{
> -    key_t key;			/* Key.  */
> -    uid_t uid;			/* Owner's user ID.  */
> -    gid_t gid;			/* Owner's group ID.  */
> -    uid_t cuid;			/* Creator's user ID.  */
> -    gid_t cgid;			/* Creator's group ID.  */
> -    unsigned short int mode;		/* Read/write permission.  */
> -    unsigned short int __pad1;
> -    unsigned short int seq;		/* Sequence number.  */
> -    unsigned short int __pad2;
> -    unsigned long int __unused1;
> -    unsigned long int __unused2;
> -};
> -		    
> -struct broken_shmid64_ds {
> -	struct broken_ipc_perm	shm_perm;	/* operation perms */
> -	size_t			shm_segsz;	/* size of segment (bytes) */
> -#ifndef __LP64__
> -	unsigned int		__pad1;
> -#endif
> -	__kernel_time_t		shm_atime;	/* last attach time */
> -#ifndef __LP64__
> -	unsigned int		__pad2;
> -#endif
> -	__kernel_time_t		shm_dtime;	/* last detach time */
> -#ifndef __LP64__
> -	unsigned int		__pad3;
> -#endif
> -	__kernel_time_t		shm_ctime;	/* last change time */
> -	__kernel_pid_t		shm_cpid;	/* pid of creator */
> -	__kernel_pid_t		shm_lpid;	/* pid of last operator */
> -	unsigned int		shm_nattch;	/* no. of current attaches */
> -	unsigned int		__unused1;
> -	unsigned int		__unused2;
> -};
> -
> -static void convert_broken_perm (struct broken_ipc_perm *out, struct ipc64_perm *in)
> -{
> -	out->key  = in->key;
> -	out->uid  = in->uid;
> -	out->gid  = in->gid;
> -	out->cuid = in->cuid;
> -	out->cgid = in->cgid;
> -	out->mode = in->mode;
> -	out->seq  = in->seq;
> -}
> -
> -static int copyout_broken_shmid64(struct broken_shmid64_ds *buf, struct shmid64_ds *sbuf)
> -{
> -	struct broken_shmid64_ds tbuf;
> -	
> -	memset(&tbuf, 0, sizeof tbuf);
> -	convert_broken_perm (&tbuf.shm_perm, &sbuf->shm_perm);
> -	tbuf.shm_segsz = sbuf->shm_segsz;
> -	tbuf.shm_atime = sbuf->shm_atime;
> -	tbuf.shm_dtime = sbuf->shm_dtime;
> -	tbuf.shm_ctime = sbuf->shm_ctime;
> -	tbuf.shm_cpid = sbuf->shm_cpid;
> -	tbuf.shm_lpid = sbuf->shm_lpid;
> -	tbuf.shm_nattch = sbuf->shm_nattch;
> -	return copy_to_user(buf, &tbuf, sizeof tbuf) ? -EFAULT : 0;
> -}
> -
> -int sys_msgctl_broken(int msqid, int cmd, struct msqid_ds *buf)
> -{
> -	return sys_msgctl (msqid, cmd & ~IPC_64, buf);
> -}
> -
> -int sys_semctl_broken(int semid, int semnum, int cmd, union semun arg)
> -{
> -	return sys_semctl (semid, semnum, cmd & ~IPC_64, arg);
> -}
> -
> -int sys_shmctl_broken(int shmid, int cmd, struct shmid64_ds *buf)
> -{
> -	struct shmid64_ds sbuf;
> -	int err;
> -
> -	if (cmd & IPC_64) {
> -		cmd &= ~IPC_64;
> -		if (cmd == IPC_STAT || cmd == SHM_STAT) {
> -			KERNEL_SYSCALL(err, sys_shmctl, shmid, cmd, (struct shmid_ds *)&sbuf);
> -			if (err == 0)
> -				err = copyout_broken_shmid64((struct broken_shmid64_ds *)buf, &sbuf);
> -			return err;
> -		}
> -	}
> -	return sys_shmctl (shmid, cmd, (struct shmid_ds *)buf);
> -}
> -
> -/*
>   * This changes the io permissions bitmap in the current task.
>   */
>  asmlinkage int sys_ioperm(unsigned long from, unsigned long num, int turn_on)
> Index: arch/parisc/kernel/sys_parisc32.c
> ===================================================================
> RCS file: /home/cvs/parisc/linux-2.6/arch/parisc/kernel/sys_parisc32.c,v
> retrieving revision 1.11
> diff -u -p -r1.11 sys_parisc32.c
> --- arch/parisc/kernel/sys_parisc32.c	28 Sep 2003 04:04:52 -0000	1.11
> +++ arch/parisc/kernel/sys_parisc32.c	10 Nov 2003 23:19:00 -0000
> @@ -1352,12 +1352,10 @@ asmlinkage int sys32_lseek(unsigned int 
>  	return sys_lseek(fd, offset, origin);
>  }
>  
> -asmlinkage long sys32_semctl_broken(int semid, int semnum, int cmd, union semun arg)
> +asmlinkage long sys32_semctl(int semid, int semnum, int cmd, union semun arg)
>  {
>          union semun u;
>  	
> -	cmd &= ~IPC_64; /* should be removed together with the _broken suffix */
> -
>          if (cmd == SETVAL) {
>                  /* Ugh.  arg is a union of int,ptr,ptr,ptr, so is 8 bytes.
>                   * The int should be in the first 4, but our argument
> Index: arch/parisc/kernel/syscall_table.S
> ===================================================================
> RCS file: /home/cvs/parisc/linux-2.6/arch/parisc/kernel/syscall_table.S,v
> retrieving revision 1.2
> diff -u -p -r1.2 syscall_table.S
> --- arch/parisc/kernel/syscall_table.S	2 Nov 2003 04:40:50 -0000	1.2
> +++ arch/parisc/kernel/syscall_table.S	10 Nov 2003 23:18:46 -0000
> @@ -260,15 +260,15 @@
>  	ENTRY_COMP(recvmsg)
>  	ENTRY_SAME(semop)		/* 185 */
>  	ENTRY_SAME(semget)
> -	ENTRY_DIFF(semctl_broken)
> +	ENTRY_DIFF(semctl)
>  	ENTRY_DIFF(msgsnd)
>  	ENTRY_DIFF(msgrcv)
>  	ENTRY_SAME(msgget)		/* 190 */
> -	ENTRY_SAME(msgctl_broken)
> +	ENTRY_SAME(msgctl)
>  	ENTRY_SAME(shmat_wrapper)
>  	ENTRY_SAME(shmdt)
>  	ENTRY_SAME(shmget)
> -	ENTRY_SAME(shmctl_broken)	/* 195 */
> +	ENTRY_SAME(shmctl)		/* 195 */
>  	ENTRY_SAME(ni_syscall)		/* streams1 */
>  	ENTRY_SAME(ni_syscall)		/* streams2 */
>  	ENTRY_SAME(lstat64)
> Index: ipc/util.c
> ===================================================================
> RCS file: /home/cvs/parisc/linux-2.6/ipc/util.c,v
> retrieving revision 1.3
> diff -u -p -r1.3 util.c
> --- ipc/util.c	8 Oct 2003 20:53:06 -0000	1.3
> +++ ipc/util.c	10 Nov 2003 23:19:41 -0000
> @@ -509,7 +509,7 @@ int ipc_checkid(struct ipc_ids* ids, str
>  	return 0;
>  }
>  
> -#if !defined(__ia64__) && !defined(__x86_64__)
> +#if !defined(__ia64__) && !defined(__x86_64__) && !defined(__hppa__)
>  
>  /**
>   *	ipc_parse_version	-	IPC call version
> Index: ipc/util.h
> ===================================================================
> RCS file: /home/cvs/parisc/linux-2.6/ipc/util.h,v
> retrieving revision 1.1
> diff -u -p -r1.1 util.h
> --- ipc/util.h	29 Jul 2003 17:02:19 -0000	1.1
> +++ ipc/util.h	10 Nov 2003 23:20:13 -0000
> @@ -56,7 +56,7 @@ int ipc_checkid(struct ipc_ids* ids, str
>  void kernel_to_ipc64_perm(struct kern_ipc_perm *in, struct ipc64_perm *out);
>  void ipc64_perm_to_ipc_perm(struct ipc64_perm *in, struct ipc_perm *out);
>  
> -#if defined(__ia64__) || defined(__x86_64__)
> +#if defined(__ia64__) || defined(__x86_64__) || defined(__hppa__)
>    /* On IA-64, we always use the "64-bit version" of the IPC structures.  */ 
>  # define ipc_parse_version(cmd)	IPC_64
>  #else



From - Thu Nov 08 21:29:56 2018
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] what's up with the ipc syscalls?
Date: Tue, 11 Nov 2003 16:46:10 -0500
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	parisc-linux@lists.parisc-linux.org
To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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> I had some thoughts about the conversion stuff, I've added to work
> around problems introduced because of the change of some structures in
> glibc/kernel. I finally realized, that these conversion only works,
> if the "old glibc" is still installed together with the old binary.
> That's because the newer glibcs don't set the IPC_64 bit when doing 
> the syscall, but the old binary still uses the wrong structs, so the
> conversion routine never triggers. I think it's really time to remove that
> crap. Below is an compiled but not booted patch, which removes it and also
> forward ports the necessary bits in ipc/util.c from 2.4. 

The following things confuse me.

a. Our glibc never set IPC_64, we had pass-thru assembly syscall
   wrappers. Why? Because we don't have an IPC multiplexor, none of the
   generic glibc code can be used by hppa.

So I don't understand some of your comments about "old glibc setting
IPC_64."

> If someone also wants to change glibc, feel free. I still think changing
> glibc is a bad idea, because this new glibc won't work with a current 2.4
> kernel.

I believed we had the following scenario:

a. Old glibc never called with IPC_64.
b. Kernel turned IPC_64 on for us so we get the new style structs.
c. Apps get new style structs without calling IPC_64.

Now we wish to have the hack in the kernel removed, but apps exist that
expect newstyle structs without calling IPC_64. Thus glibc has to
call the syscall with IPC_64 to get the right value back to userspace.

AFAIK the following is required:

a. Remove kernel hacks (Thanks Thomas!).
b. Add glibc code to turn IPC_64 on for all the afflicted syscalls.
c. Eventually when all the apps disappear we can toss out the code from
   glibc.

Thomas, did I get this right?

Cheers,
Carlos.



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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] C110 builtin nic slow?
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To: Joel Soete <soete.joel@tiscali.be>
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On Tue, Nov 11, 2003 at 12:54:25PM +0000, Joel Soete wrote:
...
> but on c110 I noticed many (with rx_copybreak = 100 and rx_copybreak = 
> 1518):
> do_page_fault() pid=882 command='netserver' type=15 address=0x0000001c
> ...

hrm...this sounds familiar...I might have only run the netperf "client"
on parisc and ran "netserver" on either ia64 or ia32 box. :^/

sorry,
grant


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From: tsbogend@alpha.franken.de (Thomas Bogendoerfer)
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Subject: Re: [parisc-linux] what's up with the ipc syscalls?
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On Tue, Nov 11, 2003 at 04:46:10PM -0500, Carlos O'Donell wrote:
> > I had some thoughts about the conversion stuff, I've added to work
> > around problems introduced because of the change of some structures in
> > glibc/kernel. I finally realized, that these conversion only works,
> > if the "old glibc" is still installed together with the old binary.
> > That's because the newer glibcs don't set the IPC_64 bit when doing 
> > the syscall, but the old binary still uses the wrong structs, so the
> > conversion routine never triggers. I think it's really time to remove that
> > crap. Below is an compiled but not booted patch, which removes it and also
> > forward ports the necessary bits in ipc/util.c from 2.4. 
> 
> The following things confuse me.
> 
> a. Our glibc never set IPC_64, we had pass-thru assembly syscall
>    wrappers. Why? Because we don't have an IPC multiplexor, none of the
>    generic glibc code can be used by hppa.

IPC_64 has nothing to do with the x86 IPC multiplexor. It's for
selecting the IPC structures with bigger uid/gid/etc. . This is
only needed for x86, because there are structs with 16bit uid/gid.
Linux/PARISC always used 32bit uid/gid.

> So I don't understand some of your comments about "old glibc setting
> IPC_64."

glibc 2.2.x (don't know the exact number, if someone cares about the
version, I will try to find it out) has set IPC_64, because someone 
used a template from another architecture, maybe even x86. I've changed
that at the time, I changed the kernel code.

> a. Old glibc never called with IPC_64.

correct. NOTE: old means older than 2.2.x; woody glibc doesn't do that.

> b. Kernel turned IPC_64 on for us so we get the new style structs.

yes.

> c. Apps get new style structs without calling IPC_64.

right, but that's not done from the *_broken wrapper in sys_parisc.c,
but from the ipc_parse_version() in util.h. We use the same way
as x86_64 and ia64 already do. If we use the x86, we would need to
add stuff for IPC_OLD. This IMHO adds not needed bloat.

If we want to make that bullet proof, we should mask the IPC_64 bit
like the ipc_parse_version() function in ipc/util.c, but return always
IPC_64. Then it doesn't matter what glibc does. But we waste a bit
for IPC_EVEN_MORE_FUNKY_STRUCTS.

> Now we wish to have the hack in the kernel removed, but apps exist that
> expect newstyle structs without calling IPC_64. Thus glibc has to
> call the syscall with IPC_64 to get the right value back to userspace.

why ? The kernel knows it only supports IPC_64. It's the only thing it
knows and has to know right now.

> a. Remove kernel hacks (Thanks Thomas!).
> b. Add glibc code to turn IPC_64 on for all the afflicted syscalls.

no, just leave glibc alone. If you would do that and install this glibc
on a 2.4 kernel, the ipc syscalls will break, because of the hacks
there. Of course I'm also removing the hacks from the 2.4 kernel, but
there is an installed base of 2.4 kernel...

My patch just keeps the kernel ABI consistent between 2.4 and 2.6.
That's an strong argument in my eyes. Which means no kernel ABI
change, no need for a glibc change. And even better no broken
applications, because the kernel ABI hasn't changed.

> c. Eventually when all the apps disappear we can toss out the code from
>    glibc.

>From my point of view, those old apps, which are covered by my hack
are already gone, because they already stopped working after an glibc upgrade.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]


From - Thu Nov 08 21:29:56 2018
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From: Jesse Dougherty <jesse@cypress-tech.com>
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Subject: [parisc-linux] Remarketed HP 3000 & 9000 Series Hardware
Date: Wed, 12 Nov 2003 10:54:50 -0500
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 Hello, the link provided below will take you to a remarketed Hewlett-Packard
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jesse@cypress-tech.com
www.cypress-tech.com





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Subject: Re: [parisc-linux] what's up with the ipc syscalls?
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Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
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To: Carlos O'Donell <carlos@baldric.uwo.ca>
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Carlos O'Donell wrote:

>>I had some thoughts about the conversion stuff, I've added to work
>>around problems introduced because of the change of some structures in
>>glibc/kernel. I finally realized, that these conversion only works,
>>if the "old glibc" is still installed together with the old binary.
>>That's because the newer glibcs don't set the IPC_64 bit when doing 
>>the syscall, but the old binary still uses the wrong structs, so the
>>conversion routine never triggers. I think it's really time to remove that
>>crap. Below is an compiled but not booted patch, which removes it and also
>>forward ports the necessary bits in ipc/util.c from 2.4. 
>>    
>>
>
>The following things confuse me.
>
>a. Our glibc never set IPC_64, we had pass-thru assembly syscall
>   wrappers. Why? Because we don't have an IPC multiplexor, none of the
>   generic glibc code can be used by hppa.
>
>So I don't understand some of your comments about "old glibc setting
>IPC_64."
>
>  
>
>>If someone also wants to change glibc, feel free. I still think changing
>>glibc is a bad idea, because this new glibc won't work with a current 2.4
>>kernel.
>>    
>>
>
>I believed we had the following scenario:
>
>a. Old glibc never called with IPC_64.
>b. Kernel turned IPC_64 on for us so we get the new style structs.
>c. Apps get new style structs without calling IPC_64.
>
>Now we wish to have the hack in the kernel removed, but apps exist that
>expect newstyle structs without calling IPC_64. Thus glibc has to
>call the syscall with IPC_64 to get the right value back to userspace.
>
>AFAIK the following is required:
>
>a. Remove kernel hacks (Thanks Thomas!).
>  
>
So I test it successfuly with 2.4 on my b2k (just re-compile the kernel, 
ssh remote connection, rsync ft, ...) :)
Sorry no more time try 2.6 on a b180 :(

>b. Add glibc code to turn IPC_64 on for all the afflicted syscalls.
>c. Eventually when all the apps disappear we can toss out the code from
>   glibc.
>
>Thomas, did I get this right?
>
>Cheers,
>Carlos.
>
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>  
>




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--B82_11BFE4D_
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--B82_11BFE4D_--



From - Thu Nov 08 21:29:56 2018
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On Wed, Nov 12, 2003 at 04:32:55PM +0100, Thomas Bogendoerfer wrote:
> > The following things confuse me.
> > 
> > a. Our glibc never set IPC_64, we had pass-thru assembly syscall
> >    wrappers. Why? Because we don't have an IPC multiplexor, none of the
> >    generic glibc code can be used by hppa.
> 
> IPC_64 has nothing to do with the x86 IPC multiplexor. It's for
> selecting the IPC structures with bigger uid/gid/etc. . This is
> only needed for x86, because there are structs with 16bit uid/gid.
> Linux/PARISC always used 32bit uid/gid.

Yes it does. From userspace the glibc code calls INLINE_SYSCALL(...) and
calls the IPC multiplexor syscall directly. We can't use this code, so
we use the syscalls.list method to generate assembly wrappers, these
wrappers have no logic and merely pass-thru the users options to the
syscall. glibc for hppa could never have "turned on" IPC_64 without
cloning the associated .c files in libc/sysdeps/unix/sysv/linux/, and
AFAIK we never have. Do you know any different?
 
> > So I don't understand some of your comments about "old glibc setting
> > IPC_64."
> 
> glibc 2.2.x (don't know the exact number, if someone cares about the
> version, I will try to find it out) has set IPC_64, because someone 
> used a template from another architecture, maybe even x86. I've changed
> that at the time, I changed the kernel code.

This is the code I'm looking to find but cannot find. If you could track
down the revision I would be extremely happy since I would like to look
at the code. We essentially need to put this back into place so that the
older apps work (versioned symbol).

> > a. Old glibc never called with IPC_64.
> 
> correct. NOTE: old means older than 2.2.x; woody glibc doesn't do that.

Good. We're on the same page.

> > b. Kernel turned IPC_64 on for us so we get the new style structs.
> 
> yes.

Yes.

> > c. Apps get new style structs without calling IPC_64.
> 
> right, but that's not done from the *_broken wrapper in sys_parisc.c,
> but from the ipc_parse_version() in util.h. We use the same way
> as x86_64 and ia64 already do. If we use the x86, we would need to
> add stuff for IPC_OLD. This IMHO adds not needed bloat.
> 
> If we want to make that bullet proof, we should mask the IPC_64 bit
> like the ipc_parse_version() function in ipc/util.c, but return always
> IPC_64. Then it doesn't matter what glibc does. But we waste a bit
> for IPC_EVEN_MORE_FUNKY_STRUCTS.

That's why we have symbol versioning. We can construct some IPC syscalls
in glibc and version them so that the older apps can use them. The
newer apps can make the call directly to the kernel with the bit on or
off. Simplifies the kernel and pushes the version compat into glibc
where it should exist.

> > Now we wish to have the hack in the kernel removed, but apps exist that
> > expect newstyle structs without calling IPC_64. Thus glibc has to
> > call the syscall with IPC_64 to get the right value back to userspace.
> 
> why ? The kernel knows it only supports IPC_64. It's the only thing it
> knows and has to know right now.

Can we ignore the bit then and make the code simpler?

> > a. Remove kernel hacks (Thanks Thomas!).
> > b. Add glibc code to turn IPC_64 on for all the afflicted syscalls.
> 
> no, just leave glibc alone. If you would do that and install this glibc
> on a 2.4 kernel, the ipc syscalls will break, because of the hacks
> there. Of course I'm also removing the hacks from the 2.4 kernel, but
> there is an installed base of 2.4 kernel...
> 
> My patch just keeps the kernel ABI consistent between 2.4 and 2.6.
> That's an strong argument in my eyes. Which means no kernel ABI
> change, no need for a glibc change. And even better no broken
> applications, because the kernel ABI hasn't changed.

It only works for a glibc that *doesn't* set IPC_64?

> > c. Eventually when all the apps disappear we can toss out the code from
> >    glibc.
> 
> From my point of view, those old apps, which are covered by my hack
> are already gone, because they already stopped working after an glibc upgrade.

Untrue, we can put out a new glibc and the old apps can work again. This
glibc hasn't made it all the way up the chain.

c.



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American Stock Market - Press Release...

True Health - TRHL - Retains Sky Investor Relations

BECKENHAM, England---PRNewswire---True Health, Inc, (OTC Bulletin Board: T=
RHL) an emerging leader in healthcare recruitment and pressure relieving s=
ystems, announces that it has retained the investor and public relations s=
ervices of New York-based Sky Investor Relations.

Read the entire news release: http://biz.yahoo.com/prnews/031112/lnw017_1.=
html









































trplrh qyhlh

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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Linux on HP
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Hello

I'm trying to set-up linux on HP computer. First I've tried Debian =
Stable
Woody relase with 2.4.17 kernel but i got message WARNING! Stack pointer
and cr30 do not correspond! I've found on newsgroup that because of old
version of gcc and kernel and I should use newer version. So I have
downloaded palinux-2.4.22-pa13-20031022-netinst.iso from your
website,check md5, burned and booted.
Unfortunately it hangs on "searching for devices" without any more info.
I would be very gratefull if you could help me solve this problem. Maybe
somemone else had similar problem.
=20
 I've attached files with bugreport.


Thanks for any suggestions, waiting for reply from you.

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-2">
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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2><FONT face=3D"Times New Roman"=20
size=3D3>Hello<BR><BR>I'm trying to set-up linux on HP computer. First =
I've tried=20
Debian Stable<BR>Woody relase with 2.4.17 kernel but i got message =
WARNING!=20
Stack pointer<BR>and cr30 do not correspond! I've found on newsgroup =
that=20
because of old<BR>version of gcc and kernel and I should use newer =
version. So I=20
have<BR>downloaded palinux-2.4.22-pa13-20031022-netinst.iso from=20
your<BR>website,check md5, burned and booted.<BR>Unfortunately it hangs =
on=20
"searching for devices" without any more info.<BR>I would be very =
gratefull if=20
you could help me solve this problem. Maybe<BR>somemone else had similar =

problem.</FONT></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><FONT face=3D"Times New Roman" =
size=3D3>&nbsp;<BR><?fontfamily><?param Arial><?smaller> I've attached =
<?fontfamily><?param Arial><?smaller>files with =
bugreport.<?/smaller><?/fontfamily><BR><BR><BR>Thanks for any =
suggestions,=20
waiting for reply from you.</FONT><BR></DIV></FONT></BODY></HTML>

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	name="komunikat 2.txt"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="komunikat 2.txt"

Main Menu: Enter command > bo ide                                =20
Interact with IPL (Y, N, Q)?> y                              =20

Booting...         =20
Boot IO Dependent Code (IODC) revision 0                                 =
      =20


HARD Booted.           =20
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002                   =
                                  =20

Boot image contains:                   =20
    0/vmlinux32 3687647 bytes @ 0x608000                                 =
      =20
    0/vmlinux64 4719374 bytes @ 0x98c800                                 =
      =20
    0/ramdisk 2663046 bytes @ 0xe0d000                                   =
  =20

Information: No console specified on kernel command line. This is =
normal.                                                                  =
      =20
PALO will choose the console currently used by firmware (serial).Current =
command                                                                  =
             =20
 line:     =20
0/vmlinux ramdisk_size=3D8192 root=3D/dev/ram initrd=3D0/ramdisk =
console=3DttyS0 TERM=3Dvt                                                =
                               =20
102  =20
 0: 0/vmlinux            =20
 1: ramdisk_size=3D8192                    =20
 2: root=3D/dev/ram                =20
 3: initrd=3D0/ramdisk                   =20
 4: console=3DttyS0                =20
 5: TERM=3Dvt102             =20

Edit which field?                =20
(or 'b' to boot with this command line)? b                               =
          =20

Command line for kernel: 'ramdisk_size=3D8192 root=3D/dev/ram =
console=3DttyS0 TERM=3Dvt1                                               =
                                =20
02 palo_kernel=3D0/vmlinux'                        =20
Selected kernel: /vmlinux from partition 0                               =
          =20
Selected ramdisk: /ramdisk from partition 0                              =
            =20
Warning: kernel name doesn't end with 32 or 64 -- Guessing...            =
                                                =20
This box can boot either 32 or 64-bit kernels...Both kernels available, =
choosing                                                                 =
              =20
 32-bit kernelELF32 execut                       =20
Entry 00100000 first 00100000 n 5                                =20
Segment 0 load 00100000 size 2024492 mediaptr 0x1000                     =
                              =20
Segment 1 load 002f0000 size 299320 mediaptr 0x1f0000                    =
                                =20
Segment 2 load 0033c000 size 401408 mediaptr 0x23a000                    =
                                =20
Segment 3 load 003a0000 size 32768 mediaptr 0x29c000                     =
                              =20
Segment 4 load 003c90f8 size 102032 mediaptr 0x2a40f8                    =
                                =20
Loading ramdisk 2663046 bytes @ 3fd65000...                              =
            =20
Branching to kernel entry point 0x00100000.  If this is the last         =
                                                      =20
message you see, you may need to switch your console.  This is           =
                                                  =20
a common symptom -- search the FAQ and mail                              =
          =20

Linux version 2.4.17-32 (root@paer) (gcc version 3.0.4) #1 Sat Mar 16 =
17:09:00 M                                                               =
                =20
ST 2002      =20
FP[0] enabled: Rev 1 Model 19                            =20
The 32-bit Kernel has started...                               =20
Determining PDC firmware type: System Map.                               =
          =20
model 00005dc0 00000481 00000000 00000002 77634812 100000f0 00000008 =
000000b2 00                                                              =
                 =20
0000b2     =20
vers  00000203             =20
CPUID vers 19 rev 7 (0x00000267)                               =20
model 9000/785/C3700                   =20
Total Memory: 2048 Mb                    =20
initrd: 4fd65000-4ffef286                        =20
initrd: reserving 3fd65000-3ffef286 (mem_max 80000000)                   =
                                  =20
pagetable_init             =20
On node 0 totalpages: 524288                           =20
zone(0): 524288 page                  =20
zone(1): 0 pages.                =20
zone(2): 0 pages.                =20
LCD display at f05d0008,f05d0000 registered                              =
            =20
Kernel command line: ramdisk_size=3D8192 root=3D/dev/ram console=3DttyS0 =
TERM=3Dvt102 pa                                                          =
                     =20
lo_kernel=3D0/vmlinux                  =20
Console: colour dummy device 160x64                                  =20
Calibrating delay loop... 1497.49 BogoMIPS                               =
          =20
Memory: 2058652k available                         =20
Dentry-cache hash table entries: 262144 (order: 9, 2097152 bytes)        =
                                                        =20
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)         =
                                                      =20
Mount-cache hash table entries: 32768 (order: 6, 262144 bytes)           =
                                                  =20
Buffer-cache hash table entries: 1310                                  =20
Page-cache hash table entries: 524288 (order: 9, 2097152 bytes)          =
                                                    =20
Searching for devices...                       =20
Found devices:             =20
1. Astro BC Runway Port (12) at 0xfed00000 [10], versions 0x582, 0x0, =
0xb                                                                      =
  =20
2. Elroy PCI Bridge (13) at 0xfed30000 [10/0], versions 0x782, 0x0, 0xa  =
                                                                    =20
3. Elroy PCI Bridge (13) at 0xfed32000 [10/1], versions 0x782, 0x0, 0xa  =
                                                                    =20
4. Elroy PCI Bridge (13) at 0xfed38000 [10/4], versions 0x782, 0x0, 0xa  =
                                                                    =20
5. Elroy PCI Bridge (13) at 0xfed3c000 [10/6], versions 0x782, 0x0, 0xa  =
                                                                    =20
6. Unknown machine (0) at 0xfffa0000 [32], version                       =
                         =20
7. Memory (1) at 0xfed10200 [49], versions 0x9c, 0x0, 0x9                =
                                        =20
CPU(s): 1 x PA8600 (PCX-W+) at 750.000000 MHz                            =
                =20
SBA found Astro 2.1 at 0xfed00000                                =20
lba version TR4.0 (0x5) found at 0xfed30000                              =
            =20
lba version TR4.0 (0x5) found at 0xfed32000                              =
            =20
lba version TR4.0 (0x5) found at 0xfed38000                              =
            =20
lba version TR4.0 (0x5) found at 0xfed3c000                              =
            =20
iosapic: hpa not registered for PCI device 103c:1008 (Hewlett-Packard =
Company)                                                                 =
            =20
POSIX conformance testing by UNIFIX                                  =20
Linux NET4.0 for Linux 2.4                         =20
Based upon Swansea University Computer Society NET3.039                  =
                                    =20
Initializing RT netlink socket                             =20
Enabled soft power switch (polling mode, io=3D0xf0400804).               =
                                        =20
SuperIO: Found NS87560 Legacy I/O device at 00:0e.1 (IRQ 64)             =
                                              =20
SuperIO: Serial port 1 at 0x3f8                              =20
SuperIO: Serial port 2 at 0x2f8                              =20
SuperIO: Parallel port at 0x378                              =20
SuperIO: Floppy controller at 0x3f0                                  =20
SuperIO: ACPI at 0x7e0                     =20
SuperIO: USB regulator enabled                             =20
parport0: PC-style at 0x378, irq 101 [PCSPP(,...)]                       =
                          =20
Starting kswapd              =20
Journalled Block Device driver loaded                                    =
=20
PCI graphic ROM found at f7000000 (2048 kB), fb @ fa000000 (32 MB)       =
                                                          =20
STI word mode ROM at f7000044, hpa=3Dfa000000                            =
              =20
STI word mode ROM, id 35acda30-9a02587, conforms to spec rev. 8.0d       =
                                                          =20
STI device: A1299B                 =20
pty: 256 Unix98 ptys configured                              =20
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ =
SERIAL_PCI en                                                            =
                   =20
abled    =20
ttyS00 at port 0x03f8 (irq =3D 99) is a 16550A                           =
                =20
ttyS01 at port 0x02f8 (irq =3D 100) is a 16550A                          =
                  =20
lp0: using parport0 (interrupt-driven).                                  =
    =20
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)     =
                                                              =20
block: 128 slots per queue, batch=3D32                                   =
=20
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize    =
                                                                =20
Uniform Multi-Platform E-IDE driver Revision: 6.31                       =
                          =20
ide: Assuming 33MHz system bus speed for PIO modes; override with =
idebus=3Dxx                                                              =
            =20
NS87415: IDE controller on PCI bus 00 dev 70                             =
              =20
NS87415: chipset revision 3                          =20
NS87415: 100% native mode on irq 103                                   =20
    ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:pio, hdb:pio       =
                                                          =20
    ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:pio, hdd:pio       =
                                                          =20
hda: HL-DT-ST GCE-8481B, ATAPI CD/DVD-ROM drive                          =
                    =20
ide0 at 0xf00-0xf07,0xe02 on                         =20
hda: ATAPI 40X CD-ROM CD-R/RW drive, 2048kB Cache                        =
                        =20
Uniform CD-ROM driver Revision: 3.12                                   =20
loop: loaded (max 8 devices)                           =20
Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)                     =
                              =20
tulip0: no phy info, aborting mtable build                               =
          =20
tulip0:  MII transceiver #1 config 1200 status 7809 advertising 01e1.    =
                                                                =20
eth0: Digital DS21143 Tulip rev 65 at 0x1000, 00:30:6E:21:4B:D2, IRQ 66. =
                                                                      =20
SCSI subsystem driver Revision: 1.00                                   =20
sym53c8xx: at PCI bus 0, device 15, function 0                           =
                  =20
sym53c8xx: 53c896 detected                         =20
sym53c8xx: at PCI bus 0, device 15, function 1                           =
                  =20
sym53c8xx: 53c896 detected                         =20
sym53c896-0: rev 0x7 on pci bus 0 device 15 function 0 irq 65            =
                                                =20
sym53c896-0: ID 7, Fast-20, Parity Checking                              =
            =20


Linux version 2.4.17-32 (root@paer) (gcc version 3.0.4) #1 Sat Mar 16 =
17:09:00 M                                                               =
                =20
ST 2002      =20
FP[0] enabled: Rev 1 Model 19                            =20
The 32-bit Kernel has started...                               =20
Determining PDC firmware type: System Map.                               =
          =20
model 00005dc0 00000481 00000000 00000002 77634812 100000f0 00000008 =
000000b2 00                                                              =
                 =20
0000b2     =20
vers  00000203             =20
CPUID vers 19 rev 7 (0x00000267)                               =20
model 9000/785/C3700                   =20
Total Memory: 2048 Mb                    =20
initrd: 4fd65000-4ffef286                        =20
initrd: reserving 3fd65000-3ffef286 (mem_max 80000000)                   =
                                  =20
pagetable_init             =20
On node 0 totalpages: 524288                           =20
zone(0): 524288 pages.                     =20
zone(1): 0 pages.                =20
zone(2): 0 pages.                =20
LCD display at f05d0008,f05d0000 registered                              =
            =20
Kernel command line: ramdisk_size=3D8192 root=3D/dev/ram console=3DttyS0 =
TERM=3Dvt102 pa                                                          =
                     =20
lo_kernel=3D0/vmlinux                  =20
Console: colour dummy device 160x64                                  =20
Calibrating delay loop... 1497.49 BogoMIPS                               =
          =20
Memory: 2058652k available                         =20
Dentry-cache hash table entries: 262144 (order: 9, 2097152 bytes)        =
                                                        =20
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)         =
                                                      =20
Mount-cache hash table entries: 32768 (order: 6, 262144 bytes)           =
                                                  =20
Buffer-cache hash table entries: 131072 (order: 7, 524288 bytes)         =
                                                      =20
Page-cache hash table entries: 524288 (order: 9, 2097152 bytes)          =
                                                    =20
Searching for devices...                       =20
Found devices:             =20
1. Astro BC Runway Port (12) at 0xfed00000 [10], versions 0x582, 0x0, =
0xb                                                                      =
  =20
2. Elroy PCI Bridge (13) at 0xfed30000 [10/0], versions 0x782, 0x0, 0xa  =
                                                                    =20
3. Elroy PCI Bridge (13) at 0xfed32000 [10/1], versions 0x782, 0x0, 0xa  =
                                                                    =20
4. Elroy PCI Bridge (13) at 0xfed38000 [10/4], versions 0x782, 0x0, 0xa  =
                                                                    =20
5. Elroy PCI Bridge (13) at 0xfed3c000 [10/6], versions 0x782, 0x0, 0xa  =
                                                                    =20
6. Unknown machine (0) at 0xfffa0000 [32], versions 0x5dc, 0x0, 0x4      =
                                                            =20
7. Memory (1) at 0xfed10200 [49], versions 0x9c, 0x0, 0x9                =
                                        =20
CPU(s): 1 x PA8600 (PCX-W+) at 750.000000 MHz                            =
                =20
SBA found Astro 2.1 at 0xfed00000                                =20
lba version TR4.0 (0x5) found at 0xfed30000                              =
            =20
lba version TR4.0 (0x5) found at 0xfed32000                              =
            =20
lba version TR4.0 (0x5) found at 0xfed38000                              =
            =20
lba version TR4.0 (0x5) found at 0x                                =20
iosapic: hpa not registered for PCI device 103c:1008 (Hewlett-Packard =
Company)                                                                 =
            =20
POSIX conformance testing by UNIFIX                                  =20
Linux NET4.0 for Linux 2.4                         =20
Based upon Swansea University Computer Society NET3.039                  =
                                    =20
Initializing RT netlink socket                             =20
Enabled soft power switch (polling mode, io=3D0xf0400804).               =
                                        =20
SuperIO: Found NS87560 Legacy I/O device at 00:0e.1 (IRQ 64)             =
                                              =20
SuperIO: Serial port 1 at 0x3f8                              =20
SuperIO: Serial port 2 at 0x2f8                              =20
SuperIO: Parallel port at 0x378                              =20
SuperIO: Floppy controller at 0x3f0                                  =20
SuperIO: ACPI at 0x7e0                     =20
SuperIO: USB reg              =20
parport0: PC-style at 0x378, irq 101 [PCSPP(,...)]                       =
                          =20
Starting kswapd              =20
Journalled Block Device driver loaded                                    =
=20
PCI graphic ROM found at f7000000 (2048 kB), fb @ fa000000 (32 MB)       =
                                                          =20
STI word mode ROM at f7000044, hpa=3Dfa000000                            =
              =20
STI word mode ROM, id 35acda30-9a02587, conforms to spec rev. 8.0d       =
                                                          =20
STI device: A1299B                 =20
pty: 256 Unix98 ptys configured                              =20
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ =
SERIAL_PCI en                                                            =
                   =20
abled    =20
ttyS00 at port 0x03f8 (irq =3D 99) is a 16550A                           =
                =20
ttyS01 at port 0x02f8 (irq =3D 100) is a 16550A                          =
                  =20
lp0: using parport0 (interrupt-driven).                                  =
    =20
Generic RTC Driver v1.02 05/27/1999 Sam Creasey (sammy@oh.verio.com)     =
                                                              =20
block: 128 slots per queue, batch=3D32                                   =
=20
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize    =
                                                                =20
Uniform Multi-Platform E-IDE driver Revision: 6.31                       =
                          =20
ide: Assuming 33MHz system bus speed for PIO modes; override with =
idebus=3Dxx                                                              =
            =20
NS87415: IDE controller on PCI bus 00 dev 70                             =
              =20
NS87415: chipset revision 3                          =20
NS87415: 100% native mode on irq 103                                   =20
    ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:pio, hdb:p         =
                                                    =20
    ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:pio, hdd:pio       =
                                                          =20
hda: HL-DT-ST GCE-8481B, ATAPI CD/DVD-ROM drive                          =
                    =20
ide0 at 0xf00-0xf07,0xe02 on irq 103                                   =20
hda: ATAPI 40X CD-ROM CD-R/RW drive, 2048kB Cache                        =
                        =20
Uniform CD-ROM driver Revision: 3.12                                   =20
loop: loaded (max 8 devices)                           =20
Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)                     =
                              =20
tulip0: no phy info, aborting mtable build                               =
          =20
tulip0:  MII transceiver #1 config 1200 status 7809 advertising 01e1.    =
                                                                =20
eth0: Digital DS21143 Tulip rev 65 at 0x1000, 00:30:6E:21:4B:D2, IRQ 66. =
                                                                      =20
SCSI subsystem driver Revision: 1.00                                   =20
sym53c8xx: at PCI bus 0, device 15, function 0                           =
                  =20
sym53c8xx: 53c896 detected                         =20
sym53c8xx: at PCI bus 0, device 15, function 1                           =
                  =20
sym53c8xx: 53c896 detected                         =20
sym53c896-0: rev 0x7 on pci bus 0 device 15 function 0 irq 65            =
                                                =20
sym53c896-0: ID 7, Fast-20, Parity Checking                              =
            =20
WARNING! Stack pointer and cr30 do not correspond!                       =
                          =20
Dumping virtual address stack instead                                    =
=20

Dumping Stack from 0x203e8000 to 0x203e8b00:                             =
              =20
8000 1cf21f4b 60933501 39928bc5 c150df50 7325178b 82a1bea1 e64a2f17 =
05437d43                                                                 =
          =20
8020 cce2eb7d 0af04fd4 99b363a9 15962afa 33107201 2b5ae0a6 66565151 =
56c3741enter command > sea                             =20

Searching for potential bo
8040 ccda17f1 adf05d6e 99b42fe3 5be0badd 331eea95 b7b7c0e8 663dd52b =
6f6f81d1l minutes.                             =20

To discontinue search, press any k
8060 cc0d1f05 dea9b6f0 981a3e0b bd536de1 30347c17 7aa6dbc3 601e4d7d =
f53b02d4                                =20


   Path Number        Device Path      =20
8080 c03c9afb ea7605a9 807935f7 d4ec0b53 00f26bef a9d816a7 01e4d7df =
53b02d4f   -----------        -----------------        -----------       =
          =20
80a0 03bf1aed a716efcc 077e35db 4e2ddf99 0e8adee5 9c2d0a60 1d15bdcb =
385a14c1           HL-DT-ST GCE-8481B                                    =
          =20
80c0 3a5dcec5 70c29cd0 74cd28d9 e1f38cf2 e99a51b3 c3e719e5 d334a367 =
87ce33cb18406LC                                                          =
      =20
  =20
80e0 a66946cf 0f9c6797 4ca438cd 1f4e7a7c 993ec4c9 3ee                    =
                               =20
8200 38d02703 3c1cffcd 71d6fb55 784f4ac8 e3db43f9 f0e820c2 c7b687f3 =
e1d04185                         =20

  Available memory:             2147483648 bytes
8220 8f6d0fe7 c3a0830b 1eda1fcf 87410617 3db43f9f 0e820c2f 7b1eca6d =
1d72ad0c      15732736 bytes                                             =
  =20

  Prim
8240 f64b2189 3a93ef4a ece0f641 75516bc6 d9b759d1 ead462de b36eb3a3 =
d5a8c5bdot path:  SCSI.6.0                               =20
  Console path:         S
8260 66dd6747 ab518b7b cdbace8f 56a316f7 9b03284d ad3098bc 3606509b =
5a613179th:        USB                          =20

----- Main Menu -----------------
8280 6c7a1465 b4b4d7a0 d8f428cb 6969af41 b19ee4c5 d2a5ebd0 633dc98b =
a54bd7a1                                           =20

      Command                =20
82a0 c67b9317 4a97af43 8c81937d 9559ebd4 190326fb 2ab                 =20
                                =20
-----    =20
Main Menu: Enter command > bo id
83e0 d9ceaf65 82cccd20 b39d5ecb 05999a41 674c08c5 0b4581d0 ceeea4d9 =
16fdb6f2                   =20

Booting...         =20
Boot IO Dependent Code (IODC) rev
8400 9dabfce1 2d8dd8b6 3b214c91 5b6d043e 76342c71 b6acbd2e ec6858e3 =
6d597a5dlo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002             =
          =20
8420 d8a60495 dac441e8 b14c092b b58883d1 62981257 6b1107a3 c54691fd =
d654ba140/vmlinux32 4250101 bytes @ 0x458800                             =
          =20
8440 8a8d23fb aca97429 151a47f7 5952e853 2a423abd b2d365f4 5484757b =
65a6cbe9   =20
    0/ramdisk 2656756 bytes @ 0xdac800                                =20
8460 a97e5fa5 cb3b2280 52fcbf4b 96764501 a5f97e97 2ceman                 =
                               =20
8560 c99f7ee9 fd53e01a 933efdd3 faa7c035 267dfba7 f54f806b 4cfbf74f =
ea9f00d7                                             =20
This box can boot either 32 o
8580 99f7ee9f d53e01af 33efdd3f aa7c035f 67dfba7f 54f806bf cfc9c1ad =
a986b82c                                                     =20
 32-bit kernelELF32 e
85a0 9f93835b 530d7059 3f51b3e5 a66c55e0 7ea367cb 4cd8abc1 fd307ac5 =
99c7e2d0                            =20
Segment 0 load 00100000 size 2359528 mediaptr=20
85c0 fa60f58b 338fc5a1 f4b75e45 67693e10 e91809d9 cea4c972 d23013b3 =
9d4992e542000 size 488912 mediaptr 0x242000                              =
          =20
85e0 a4602767 3a9325cb 48b6fb9d 7550fec4 911b4269 ead748da 223684d3 =
d5ae91b5                                         =20
Segment 3 load 003fc000 size 8192
8600 446d09a7 ab5d236b 88da134f 56ba46d7 11c293cd ad0238fc 2385279b =
5a0471f9 4 load 00400000 size 32768 mediaptr 0x2fa000                    =
          =20
8620 477cfa65 b47e56a0 8ef9f4cb 68fcad41 1d855cc5 d18264 mediapt         =
                               =20
86a0 478145f1 eb440e6e 8f028be3 d6881cdd 1e0517c7 ad1039bb 3c0a2f8f =
5a2073773.0.4) #1 Wed Oct 22 17:45:10                                    =
          =20
86c0 7862ea4d b43653bc f0c5d49b 686ca779 e1fd1c65 d0affba0 c3fa38cb =
a15ff741l 19                            =20
The 32-bit Kernel has started...         =20
86e0 87f47197 42bfee83 0f9e567d 85096854 1f3cacfb 0a12d0a9 3e0feca5 =
14531400                             =20
model 00005dc0 00000481 00000000 00000002 776
8700 7c696c19 28d09d52 f8a46d61 51d78ff6 f13e6f91 a3d                    =
                               =20
8740 49b1bbe1 f040f036 936377c3 e081e06d 26c6ef87 c103c0db 4d8ddf0f =
820781b7d: 4fd66000-4ffee9f4                        =20
initrd: reserving 3fd66000-3ff
8760 9b1bbe1f 040f036f 3641c96d 0868b38c 6cf52789 10a7d24a d99cfa41 =
213911c6=20
pagetable_init             =20
On node 0 totalpages: 524288                =20
8780 b34f41d1 420496de 66e836f1 847f98ee cdd06de3 08ff31dd 9bd66e95 =
1188d6e8             =20
zone(2): 0 pages.                =20
LCD display at f05d0008,f0
87a0 37da6879 23671882 6fc265a1 46b88456 dff27e11 8d07bdfe bfe4fc23 =
1a0f7bfdine: ramdisk_size=3D8192 root=3D/dev/ram console=3DttyS0 =
TERM=3Dvt102 pa           =20
87c0 7fbf4d15 346842a8 ff082f79 68a63002 fe66eba1 d13ad556 fccdd743 =
a275aaadl=3D0/vmlinux                  =20
Console: colour dummy device 160x64         =20
87e0 f99bae87 44eb555b f341e85d 89a01fe4 e683d0bb 13497.49 BogoMIP       =
                               =20
-------
8900 d7762b37 6520e5f3 ae9ae33d ca377eb4 5d35c67b 946efd69 ba6b8cf7 =
28ddfad3                                                                 =
      =20

 =20
8920 74a1acbd 51cd40f4 e935ec29 a3ec34ba d26bd853 47d86975 a4a105f5 =
8fc667b8                                                                 =
     =20
  --
8940 49420beb 1f8ccf71 92f2a285 3f6f2bb0 2593f059 7ea8e232 4b5155e1 =
fd277136                                                                 =
          =20
8960 96a2abc3 fa4ee26d 2d455787 f49dc4db 5a8aaf0f e93b89b7 b5155e1f =
d277136f36 kB                                                            =
          =20
8980 6a2abc3f a4ee26df d455787f 49dc4dbf a8dc45ad 93ce2e2c 51b88b5b =
279c5c59                          =20

  Available memory:             2147483648 byte
89a0 a307a3e5 4f4e0de0 4679f299 9eeaae92 8cf3e533 3ddod memory required: =
                               =20
89a0 a307a3e5 4f4e0de0 4679f299 9eeaae92 8cf3e533 3ddod memory required: =
                               =20
8aa0 8736bfb7 37b59133 0e1bca3d 6f1d9734 1c412129 de4d9b3a 38824253 =
bc9b3675
8ac0 710484a7 79366ceb e27fbc1d f21a6c84 c4ff783b e434d909 89fef077 =
c869b213
8ae0 13fde0ef 90d36427 27fbc1df 21a6c84f 4f8136ed 433b25cc 9f74d889 =
8600feca

High Priority Machine Check (HPMC): Code=3D1 regs=3D102f3080 =
(Addr=3D00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111101000001101 Not tainted
r00-03  00000000 00000000 1034bda0 000f4000
r04-07  12378350 00000010 12378000 00000000
r08-11  00000002 1237800c 12378050 10323010
r12-15  00000000 10376c08 102d2000 00000038
r16-19  0000000f 103234d4 10323010 000f423f
r20-23  0000000f f4005014 00000001 f4005000
r24-27  000f423f 000bb800 00000001 102f0010
r28-31  00000000 00001d4c 103e8b00 10201f40
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1034be68 1034be6c
 IIR: 0ea00013    ISR: a607ffd0  IOR: 01405014
 CPU:        0   CR30: 103e8000 CR31: 103a0000
 ORIG_R28: 00000000

------=_NextPart_000_0025_01C3AADE.E8216470
Content-Type: text/plain;
	name="komunikat.txt"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="komunikat.txt"


Firmware Version 1.6                   =20

Duplex Console IO Dependent Code (IODC) revision 1                       =
                          =20

-------------------------------------------------------------------------=
-----                                                                    =
         =20
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved =
                                                                      =20
-------------------------------------------------------------------------=
-----                                                                    =
         =20

  Processor   Speed            State           Coprocessor State  I/D =
Cache                                                                    =
      =20
  ---------  --------   ---------------------  ----------                =
                                      =20
      0      750 MHz    Active                 Functional         768 =
kB/1536 kB                                                               =
                =20


  Central Bus Speed:                   120 MHz                           =
                  =20

  Available memory:             2147483648 bytes                         =
                      =20
  Good memory required:           15732736 bytes                         =
                      =20

  Primary boot path:    FWSCSI.6.0                                 =20
  Alternate boot path:  SCSI.6.0                               =20
  Console path:         SERIAL_1.9600.8.none                             =
              =20
  Keyboard path:        USB                          =20

----- Main Menu =
-------------------------------------------------------------            =
                                                                =20

      Command                           Description                      =
                            =20
      -------                           -----------                      =
                            =20
      BOot [PRI|ALT|<path>]             Boot from specified path         =
                                                      =20
      PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path         =
                                                      =20
      SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices          =
                                                    =20

      COnfiguration [<command>]         Access Configuration =
menu/commands                                                            =
             =20
      INformation [<command>]           Access Information menu/commands =
                                                                      =20
      SERvice [<command>]               Access Service menu/commands     =
                                                              =20

      DIsplay                           Redisplay th                     =
                            =20
      HElp [<menu>|<command>]           Display help for menu or command =
                                                                      =20
      RESET                             Restart the system               =
                                          =20
-----    =20
Main Menu: Enter command > bo ide                                =20
Interact with IPL (Y, N, Q)?> y                              =20

Booting...         =20
Boot IO Dependent Code (IODC) revision 0                                 =
      =20


HARD Booted.           =20
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002                   =
                                  =20

Boot image contains:                   =20
    0/vmlinux32 4250101 bytes @ 0x458800                                 =
      =20
    0/vmlinux64 5527820 bytes @ 0x866800                                 =
      =20
    0/ramdisk 2656756 bytes @ 0xdac800                                   =
  =20

Information: No console specified on kernel comman                       =
                         =20
PALO will choose the console currently used by firmware (serial).Current =
command                                                                  =
             =20
 line:     =20
0/vmlinux ramdisk_size=3D8192 root=3D/dev/ram initrd=3D0/ramdisk =
console=3DttyS0 TERM=3Dvt                                                =
                               =20
102  =20
 0: 0/vmlinux            =20
 1: ramdisk_size=3D8192                    =20
 2: root=3D/dev/ram                =20
 3: initrd=3D0/ramdisk                   =20
 4: console=3DttyS0                =20
 5: TERM=3Dvt102             =20

Edit which field?                =20
(or 'b' to boot with this command line)? b                               =
          =20

Command line for kernel: 'ramdisk_size=3D8192 root=3D/dev/ram =
console=3DttyS0 TERM=3Dvt1                                               =
                                =20
02 palo_kernel=3D0/vmlinux'                        =20
Selected kernel: /vmlinux from partition 0                               =
          =20
Selected ramdisk: /ramdisk                         =20
Warning: kernel name doesn't end with 32 or 64 -- Guessing...            =
                                                =20
This box can boot either 32 or 64-bit kernels...Both kernels available, =
choosing                                                                 =
              =20
 32-bit kernelELF32 executable                             =20
Entry 00100268 first 00100000 n 6                                =20
Segment 0 load 00100000 size 2359528 mediaptr 0x1000                     =
                              =20
Segment 1 load 00342000 size 488912 mediaptr 0x242000                    =
                                =20
Segment 2 load 003bc000 size 252764 mediaptr 0x2ba000                    =
                                =20
Segment 3 load 003fc000 size 8192 mediaptr 0x2f8000                      =
                            =20
Segment 4 load 00400000 size 32768 mediaptr 0x2fa000                     =
                              =20
Segment 5 load 0042ab70 size 121264 mediapt                              =
          =20
Loading ramdisk 2656756 bytes @ 3fd66000...                              =
            =20
Branching to kernel entry point 0x00100268.  If this is the last         =
                                                      =20
message you see, you may need to switch your console.  This is           =
                                                  =20
a common symptom -- search the FAQ and mailing list at parisc-linux.org  =
                                                                    =20

Linux version 2.4.22-32 (root@k2000) (gcc version 3.0.4) #1 Wed Oct 22 =
17:45:10                                                                 =
             =20
CEST 2003        =20
FP[0] enabled: Rev 1 Model 19                            =20
The 32-bit Kernel has started...                               =20
Determining PDC firmware type: System Map.                               =
          =20
model 00005dc0 00000481 00000000 00000002 77634812 100000f0 00000008 =
000000b                                                                  =
        =20
0000b2     =20
vers  00000203             =20
CPUID vers 19 rev 7 (0x00000267)
capabilities 0x7
model 9000/785/C3700
Total Memory: 2048 Mb
initrd: 4fd66000-4ffee9f4
initrd: reserving 3fd66000-3ffee9f4 (mem_max 80000000)
pagetable_init
On node 0 totalpages: 524288
zone(0): 524288 pages.
zone(1): 0 pages.
zone(2): 0 pages.
LCD display at f05d0008,f05d0000 registered
Kernel command line: ramdisk_size=3D8192 root=3D/dev/ram console=3DttyS0 =
TERM=3Dvt102 pa
lo_kernel=3D0/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 1497.49 BogoMIPS
Memory: 2066424k available
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode cache hash table entries: 131072 (order: 8, 1048576 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 131072 (order: 7, 524288 bytes)
Page-cache hash table entries: 524288 (order: 9, 2097152 bytes)
Searching for devices...
------=_NextPart_000_0025_01C3AADE.E8216470--




From - Thu Nov 08 21:29:57 2018
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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Linux on HP
Date: Fri, 14 Nov 2003 18:11:49 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:20096

Hi Damian,

Can you give more detail on the model of your "HP computer".
I encounter a similar problem with a b2000 because of a pb between pdc 
console support and Suckio driver for the ide-cdrom.

I was too lasy to learn how to build a custom net-iso cd, so I copy a 
system disk (installed on a b180) on an external disk. Then i boot the 
b2k with this disk plug in an additional scsi controler, to finaly copy 
its contain on the internal disk (and when the disk went down, I just 
follow the same procedure :) ).

hth,
	Joel

Damian Muchliski wrote:
> Hello
> 
> I'm trying to set-up linux on HP computer. First I've tried Debian Stable
> Woody relase with 2.4.17 kernel but i got message WARNING! Stack pointer
> and cr30 do not correspond! I've found on newsgroup that because of old
> version of gcc and kernel and I should use newer version. So I have
> downloaded palinux-2.4.22-pa13-20031022-netinst.iso from your
> website,check md5, burned and booted.
> Unfortunately it hangs on "searching for devices" without any more info.
> I would be very gratefull if you could help me solve this problem. Maybe
> somemone else had similar problem.
>  
>  I've attached files with bugreport.
> 
> 
> Thanks for any suggestions, waiting for reply from you.
> 



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Xref: news.gmane.org gmane.linux.ports.parisc:20097

On Friday 14 November 2003 12:11 pm, Joel Soete wrote:
> Hi Damian,
>
> Can you give more detail on the model of your "HP computer".
>
Joel
I found this in one of his attachments...

Linux version 2.4.17-32 (root@paer) (gcc version 3.0.4) \
#1 Sat Mar 16 17:09:00 MST 2002
FP[0] enabled: Rev 1 Model 19
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005dc0 00000481 00000000 00000002 77634812 \
            100000f0 00000008 000000b2 000000b2
vers  00000203
CPUID vers 19 rev 7 (0x00000267)
model 9000/785/C3700
Total Memory: 2048 Mb



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From: Joel Soete <soete.joel@tiscali.be>
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Michael S.Zick wrote:
> model 9000/785/C3700
> Total Memory: 2048 Mb
> 
Whauuu!! very nice that is a C3700 with 2Gb of ram :) (have a look in 
the HW db)

Joel



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On Friday 14 November 2003 11:41 am, Damian Muchli?ski wrote:
> Hello
>
> I'm trying to set-up linux on HP computer. First I've tried Debian Stable
> Woody relase with 2.4.17 kernel but i got message WARNING! Stack pointer
> and cr30 do not correspond! I've found on newsgroup that because of old
> version of gcc and kernel and I should use newer version. So I have
> downloaded palinux-2.4.22-pa13-20031022-netinst.iso from your
> website,check md5, burned and booted.
> Unfortunately it hangs on "searching for devices" without any more info.
>
You might try letting it set at that point for a good while, like go out to
lunch.
There was (perhaps still is) a problem on some machines where the
device search took approximately forever.
Mike


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On Fri, Nov 14, 2003 at 09:16:51PM -0600, Michael S. Zick wrote:
> You might try letting it set at that point for a good while, like go out to
> lunch.
> There was (perhaps still is) a problem on some machines where the
> device search took approximately forever.

That was on CCIO-based machines (ie C100 to J2240).  It's fixed now.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: [parisc-linux] Remote-Control Cars and Boats - Great Xmas Gifts.....Kameron
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--_..E.1AD.09C7DE__64_4_1
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From: "Chauncey Mora" <osv740@yahoo.com>
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Subject: [parisc-linux] LIVE LONGER with H-uman...G-rowth...H-ormone...celine
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--5D5F7BB_4_.C.
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--5D5F7BB_4_.C.--



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Hi Grant,

I quiet sure now that the pb come from the 2d nic of my pc.

It is a:
00:0b.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] 
(rev 24)

I with google, I find back a mail of Andrew Morton in which he mentioned 
a diag tool for this nic (<http://www.scyld.com/diag/>). I launch it:
# ./vortex-diag -aem
[...]
Transceiver type in use:  10baseT.
  MAC settings: full-duplex.
                ^^^^^^^^^^^^
  Station address set to 00:10:4b:63:2e:bf.
  Configuration options 000a.
Saved EEPROM settings of a 3Com Vortex/Boomerang:
  3Com Node Address 00:10:4B:63:2E:BF (used as a unique ID only).
  OEM Station address 00:10:4B:63:2E:BF (used as the ethernet address).
   Device ID 9055,  Manufacturer ID 6d50.
   Manufacture date (MM/DD/YYYY) 3/17/1998, division 6, product NK.
   No BIOS ROM is present.
  Transceiver selection: 10baseT.
    Options: force full duplex, link beat required.
             ^^^^^^^^^^^^^^^^^
  PCI Subsystem IDs: Vendor 10b7 Device 9055.
[...]

So i will continue to see how to set it up in half-duplex (would it not 
be the default in 10BT?)

Cheers,
	Joel


Grant Grundler wrote:
> On Tue, Nov 11, 2003 at 12:54:25PM +0000, Joel Soete wrote:
> ...
> 
>>but on c110 I noticed many (with rx_copybreak = 100 and rx_copybreak = 
>>1518):
>>do_page_fault() pid=882 command='netserver' type=15 address=0x0000001c
>>...
> 
> 
> hrm...this sounds familiar...I might have only run the netperf "client"
> on parisc and ran "netserver" on either ia64 or ia32 box. :^/
> 
> sorry,
> grant
> 



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To: Joel Soete <soete.joel@tiscali.be>
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On Sat, 15 Nov 2003, Joel Soete wrote:

> Hi Grant,
>
> I quiet sure now that the pb come from the 2d nic of my pc.
>
> It is a:
> 00:0b.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone]
> (rev 24)
>
> I with google, I find back a mail of Andrew Morton in which he mentioned
> a diag tool for this nic (<http://www.scyld.com/diag/>). I launch it:
> # ./vortex-diag -aem
> [...]
> Transceiver type in use:  10baseT.
>   MAC settings: full-duplex.
>                 ^^^^^^^^^^^^
>   Station address set to 00:10:4b:63:2e:bf.
>   Configuration options 000a.
> Saved EEPROM settings of a 3Com Vortex/Boomerang:
>   3Com Node Address 00:10:4B:63:2E:BF (used as a unique ID only).
>   OEM Station address 00:10:4B:63:2E:BF (used as the ethernet address).
>    Device ID 9055,  Manufacturer ID 6d50.
>    Manufacture date (MM/DD/YYYY) 3/17/1998, division 6, product NK.
>    No BIOS ROM is present.
>   Transceiver selection: 10baseT.
>     Options: force full duplex, link beat required.
>              ^^^^^^^^^^^^^^^^^
>   PCI Subsystem IDs: Vendor 10b7 Device 9055.
> [...]
>
> So i will continue to see how to set it up in half-duplex (would it not
> be the default in 10BT?)

How is it connected?
Is it connected to a Switch (with Full-Duplex support, not a regular Hub)?
Or is it connected to another PC via a Cross-Over cable?

If either of them is true, then 10BaseT will auto-negotiate Full-Duplex,
of both ends support it.
It's usually safe with 10BaseT only cards, but it's might come to some
little problems if some cheap 100BaseTx cards are involved (more complex
auto-negotiation involved, some cheap cards don't do it correctly).
Then you might have to force it to 10Mbit, 100Mbit, Full or Half-Duplex
manually.

However I don't see why the network card should be *automatically* forced
to Full-Duplex, since 'forced' implies that is was done manually!


Actually if one end point uses Full-Duplex and the other end uses
Half-Duplex, there should be no connection possible. The same for
the situation when one side uses 10Mbit and the other is set to
explicitly use 100MBit.

The only situation where such a decreased network performance occurs
is IMHO that your have a cheap network equipment.
IE. a dodgy network cable that isn't properly shielded or doesn't use all
8 wires, and/or cheap network cards that don't test whether the network
connection/cable is capable of supporting Full-Duplex reliably.

In this (worst case) scenario there will be a lot of packet drop on
the physical layer and the network cards will re-send the ethernet
packets autmatically (usually) without notifying you. You will see
decreased network performace as you mentioned it.
Unfortunately I have seen this a couple of times in my life, especially
in the old 10Base2/5 days with broken terminators or tranceivers, but also
with 10BaseT, and even more so with 100Mbit and low-quality network cables.

greetings, Max


PS: oh, yes, another possible problem might be an IRQ conflict (which is
rather unlikely on PA-RISC). It would cause also degraded network
performance.


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Anyone get dual NICs working on this machine?
The second one is on the EISA expansion card.
It works in HPUX.
I'd like to get this to work in linux and use the box as a router/gw.





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On Sat, Nov 15, 2003 at 06:22:32PM -0500, buggz wrote:
> Anyone get dual NICs working on this machine?
> The second one is on the EISA expansion card.
> It works in HPUX.
> I'd like to get this to work in linux and use the box as a router/gw.

When you asked on IRC, I asked you what kind of EISA network card it is.
I don't know what driver you'll need to enable.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Sat, 15 Nov 2003, Matthew Wilcox wrote:

> On Sat, Nov 15, 2003 at 06:22:32PM -0500, buggz wrote:
> > Anyone get dual NICs working on this machine?
> > The second one is on the EISA expansion card.
> > It works in HPUX.
> > I'd like to get this to work in linux and use the box as a router/gw.
>
> When you asked on IRC, I asked you what kind of EISA network card it is.
> I don't know what driver you'll need to enable.
>
> --
> "It's not Hollywood.  War is real, war is primarily not about defeat or
> victory, it is about death.  I've seen thousands and thousands of dead bodies.
> Do you think I want to have an academic debate on this subject?" -- Robert Fisk
>

Oh, the expansion card?
I gave the P/N of the NIC.
I will reply here w/ the P/N's of both the cards.
Those parts are at work, so it will be Tuesday before I know.
Thanks.


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Sorry to reply myself, but think I might need to clarify some points
(I'm a little bit tired, so I have missed some things in my previous post)

On Sat, 15 Nov 2003, M. Grabert wrote:

[...]

> > So i will continue to see how to set it up in half-duplex (would it not
> > be the default in 10BT?)

Yes, usually it defaults to 10Mbit half-duplex and then (if the cards
support it) it tries to negotiate better connections (full-duplex, 100Mbit ...)

> Actually if one end point uses Full-Duplex and the other end uses
> Half-Duplex, there should be no connection possible.

This is true if the (forced full-duplex) network card test for full-duplex
capable connection and doesn't find it. However most (cheap?) cards will
skip the test for full-duplex if it was 'forced', and you can still connect.

Light traffic will work, but you will have problems with large traffic.
The explanation:

The half-duplex side will send a packet, and assumes the other end stops
sending if a collision occurs, ie. if the other side was sending something
at the same time (CSMA/CD).
The full-duplex side will however will always send/receive as fast as it
can as it doesn't do CSMA/CD, ie. it doesn't care about collisions.

The effect is that there will be a massive amount of collisions if both
sides want to send data, and only the half-duplex card will try to resend
the packets (causing even more collisions).
You will see slow traffic when sending from half-duplex, and dropped
packets when sending from full-duplex when both cards are sending.

This will be most likely your problem, since it fits your description
perfectly (forced full-duplex mode). Sorry, I overlooked that in
my first post.



> The same for the situation when one side uses 10Mbit and the other is
> set to explicitly use 100MBit.

This will definitely never work.

> The only situation where such a decreased network performance occurs
> is IMHO that your have a cheap network equipment.
> IE. a dodgy network cable that isn't properly shielded or doesn't use all
> 8 wires,

I mean in the context for 10BaseT, ie. all 4 wires (1/2,3/6) are connected,
but not the rest. There will be noise/crosstalk that will lead to
collisions.

[...]

> In this (worst case) scenario there will be a lot of packet drop on
> the physical layer and the network cards will re-send the ethernet
> packets autmatically (usually) without notifying you. You will see
> decreased network performace as you mentioned it.

The network card (only in half-duplex) will think it detects collisions
due to noise/crosstalk and will automatically resend the packets without
notification.


Slan,
  Max



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On Fri, Nov 14, 2003 at 06:41:25PM +0100, Damian Muchli?ski wrote:
> I've found on newsgroup that because of old
> version of gcc and kernel and I should use newer version. So I have
> downloaded palinux-2.4.22-pa13-20031022-netinst.iso from your
> website,check md5, burned and booted.
> Unfortunately it hangs on "searching for devices" without any more info.

Damian,
I'm surprised the 2.4.22 netinst.iso doesn't boot on your c3700.
I'm currently running 2.4.22-pa14 on a C3600 with STIFB console.

The output you posted started with 2.4.17 boot and then garbled
at the end. I don't understand how HPMC dump messages and what looks
like PDC output (eg "To discontinue search,...") got mixed up.

If you can netboot a 2.4.22 kernel image from:
	ftp://ftp.parisc-linux.org/kernels/c3000/

and point the "root=" at the CDROM install disk, I would expect
it to complete the install....but that's non-trivial to setup
and it's alot to ask for. If you don't have time or it's too
complicated, don't worry about it.

I'll try to netboot the netinst.iso that you used at home on a C3000
and see what happens.

thanks,
grant


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Subject: Re: [parisc-linux] Dual NICs on 9000/715, anyone?
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On Sat, Nov 15, 2003 at 06:22:32PM -0500, buggz wrote:
> Anyone get dual NICs working on this machine?
> The second one is on the EISA expansion card.

EISA DMA isn't working, IIRC.
I don't recall if anyone has published Wax (EISA) DMA docs.
If not, that means someone from HP would have to write it
or get enough detail from someone inside HP to write it.

> It works in HPUX.
> I'd like to get this to work in linux and use the box as a router/gw.

At one we had a NIC working using PIO (not DMA).
But don't expect stellar performance.

grant


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Slightly off topic:  I've been fighting with a 715/80 with an EISA 10/100 VG
AnyLan card in it for the last 2 weeks.  I can not get the network to come
up. I have a whole series of issues to resolve unrelated to the network
hardware, but that's another long story ... (the old SCSI CD-ROM doesn't
like CD-RW ... don't have spare CD-R ... disc 2 of my downloaded set is
unreadable - how I wish the MD5 checksums were up-to-date ...  I could set
up dial-up (eeek!) but ...

I don't have have an EtherTwist transceiver for the built-in (and don't know
if it'll work anyway) - can anyone advise me whether or not the the built-in
10-Base-2 Ethernet NIC will work using a AUI-10MB Ethernet transceiver
connected to a Linksys DSL 10/100 router?  (I have a CenterCOM MX10 IEEE
802.3 MicroTransceiver 10-Base-2 - a lot of good that'll do me ...).

Regards

Shane Brodie

-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Grant
Grundler
Sent: November 15, 2003 7:52 PM
To: buggz
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Dual NICs on 9000/715, anyone?


On Sat, Nov 15, 2003 at 06:22:32PM -0500, buggz wrote:
> Anyone get dual NICs working on this machine?
> The second one is on the EISA expansion card.

EISA DMA isn't working, IIRC.
I don't recall if anyone has published Wax (EISA) DMA docs.
If not, that means someone from HP would have to write it
or get enough detail from someone inside HP to write it.

> It works in HPUX.
> I'd like to get this to work in linux and use the box as a router/gw.

At one we had a NIC working using PIO (not DMA).
But don't expect stellar performance.

grant
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On Sat, Nov 15, 2003 at 10:16:11PM -0600, Shane G. Brodie wrote:
> Slightly off topic:  I've been fighting with a 715/80 with an EISA 10/100 VG
> AnyLan card in it for the last 2 weeks.  I can not get the network to come
> up.

If it's trying to use DMA, it won't work.

> I have a whole series of issues to resolve unrelated to the network
> hardware, but that's another long story ... (the old SCSI CD-ROM doesn't
> like CD-RW ... don't have spare CD-R ... disc 2 of my downloaded set is
> unreadable - how I wish the MD5 checksums were up-to-date ...  I could set

can you clarify which MD5 csums are stale?
Post the URL on this list and likely someone can fix it.

> up dial-up (eeek!) but ...
> 
> I don't have have an EtherTwist transceiver for the built-in (and don't know
> if it'll work anyway) - can anyone advise me whether or not the the built-in
> 10-Base-2 Ethernet NIC will work using a AUI-10MB Ethernet transceiver
> connected to a Linksys DSL 10/100 router?

The 715 built-in (LASI "apricot", uses lasi_82596 driver) works fine.
I wouldn't expect any compatibility problems with Linksys router.

grant


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On Fri, Nov 14, 2003 at 06:41:25PM +0100, Damian Muchli?ski wrote:
> So I have downloaded palinux-2.4.22-pa13-20031022-netinst.iso from your
> website,check md5, burned and booted.
> Unfortunately it hangs on "searching for devices" without any more info.

I don't know how to extract the vmlinux from the -pa13 netinst.iso.
But I could grab the 2.4.22 kernel+modules which are installed.
It boots fine on my c3k via gfx console (using PCI Viz-EG card).
(uname -a give "2.4.22-32 #1" and Oct 22, 2003 time stamp)

Thibaut, the kernel used to boot the netinst.iso is the identical
one that gets install by the netinst.iso?

Damian, perhaps you have additional/different PCI cards that are
causing problems?

Can you send output from "in io"?
Type "in io" while at the "Main Menu: Enter command" firmware prompt.

hth,
grant


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On Sat, 15 Nov 2003 22:50:22 -0700
Grant Grundler <grundler@parisc-linux.org> wrote:

> On Fri, Nov 14, 2003 at 06:41:25PM +0100, Damian Muchli?ski wrote:
> > So I have downloaded palinux-2.4.22-pa13-20031022-netinst.iso from
> > your website,check md5, burned and booted.
> > Unfortunately it hangs on "searching for devices" without any more
> > info.
> 
> I don't know how to extract the vmlinux from the -pa13 netinst.iso.
> But I could grab the 2.4.22 kernel+modules which are installed.
> It boots fine on my c3k via gfx console (using PCI Viz-EG card).
> (uname -a give "2.4.22-32 #1" and Oct 22, 2003 time stamp)
> 
> Thibaut, the kernel used to boot the netinst.iso is the identical
> one that gets install by the netinst.iso?

Yes.


Thibaut VARENE
The PA/Linux ESIEE Team
http://pateam.esiee.fr/


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Hi Max,

M. Grabert wrote:
> On Sat, 15 Nov 2003, Joel Soete wrote:
> 
> 
>>Hi Grant,
>>
>>I quiet sure now that the pb come from the 2d nic of my pc.
>>
>>It is a:
>>00:0b.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone]
>>(rev 24)
>>
>>I with google, I find back a mail of Andrew Morton in which he mentioned
>>a diag tool for this nic (<http://www.scyld.com/diag/>). I launch it:
>># ./vortex-diag -aem
>>[...]
>>Transceiver type in use:  10baseT.
>>  MAC settings: full-duplex.
>>                ^^^^^^^^^^^^
>>  Station address set to 00:10:4b:63:2e:bf.
>>  Configuration options 000a.
>>Saved EEPROM settings of a 3Com Vortex/Boomerang:
>>  3Com Node Address 00:10:4B:63:2E:BF (used as a unique ID only).
>>  OEM Station address 00:10:4B:63:2E:BF (used as the ethernet address).
>>   Device ID 9055,  Manufacturer ID 6d50.
>>   Manufacture date (MM/DD/YYYY) 3/17/1998, division 6, product NK.
>>   No BIOS ROM is present.
>>  Transceiver selection: 10baseT.
>>    Options: force full duplex, link beat required.
>>             ^^^^^^^^^^^^^^^^^
>>  PCI Subsystem IDs: Vendor 10b7 Device 9055.
>>[...]
>>
>>So i will continue to see how to set it up in half-duplex (would it not
>>be the default in 10BT?)
> 
> 
> How is it connected?
> Is it connected to a Switch (with Full-Duplex support, not a regular Hub)?
> Or is it connected to another PC via a Cross-Over cable?
> 
A cross-cable (of high quality).
btw I bring back my office 'thinkpad' (win2k) at home, connect it with 
the same cable to c110's nic and ftp my last kernel src (about 30mb): 
ftp stat showing about 800k/s; that is normal.
I use so the same cable to connect 'thinkpab' to my 3com nic and do the 
same ftp: ftp hang after 600k?

> If either of them is true, then 10BaseT will auto-negotiate Full-Duplex,
> of both ends support it.
> It's usually safe with 10BaseT only cards, but it's might come to some
> little problems if some cheap 100BaseTx cards are involved (more complex
> auto-negotiation involved, some cheap cards don't do it correctly).
> Then you might have to force it to 10Mbit, 100Mbit, Full or Half-Duplex
> manually.
> 
many strange things occurs with this card:
* I don't see it initialized in dmesg as the other nic (even though it 
is well configure (ifconfig :) )
* mii-tool shows:
eth1: 10 Mbit, half duplex, no link
                             ^^^^^^^
even though:
  # ping hpalin
PING hpalin (172.16.248.45): 56 data bytes
64 bytes from 172.16.248.45: icmp_seq=0 ttl=64 time=0.4 ms
64 bytes from 172.16.248.45: icmp_seq=1 ttl=64 time=0.4 ms
64 bytes from 172.16.248.45: icmp_seq=2 ttl=64 time=0.4 ms
64 bytes from 172.16.248.45: icmp_seq=3 ttl=64 time=0.4 ms

--- hpalin ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max = 0.4/0.4/0.4 ms
or
  # ping hpalin -s 3000
PING hpalin (172.16.248.45): 3000 data bytes
3008 bytes from 172.16.248.45: icmp_seq=0 ttl=64 time=5.7 ms
3008 bytes from 172.16.248.45: icmp_seq=1 ttl=64 time=5.6 ms
3008 bytes from 172.16.248.45: icmp_seq=2 ttl=64 time=5.6 ms
3008 bytes from 172.16.248.45: icmp_seq=3 ttl=64 time=5.6 ms
3008 bytes from 172.16.248.45: icmp_seq=4 ttl=64 time=5.6 ms
3008 bytes from 172.16.248.45: icmp_seq=5 ttl=64 time=5.6 ms
3008 bytes from 172.16.248.45: icmp_seq=6 ttl=64 time=5.6 ms
3008 bytes from 172.16.248.45: icmp_seq=7 ttl=64 time=5.6 ms
3008 bytes from 172.16.248.45: icmp_seq=8 ttl=64 time=5.6 ms
3008 bytes from 172.16.248.45: icmp_seq=9 ttl=64 time=5.6 ms

--- hpalin ping statistics ---
10 packets transmitted, 10 packets received, 0% packet loss

* above mentioned tools (vortex-diag) also mentioned:
[...]
  Basic mode status register 0x3000 ... 3000.
    Link status: not established.
    Capable of  100baseTx 10baseT-FD.
    Unable to perform Auto-negotiation, negotiation not complete.
  This transceiver has no vendor identification.
  I'm advertising 3000:
    Advertising no additional info pages.
    Using an unknown (non 802.3) encapsulation.
  Link partner capability is 3000:.
    Negotiation did not complete.

I need so definitely to force 10baseT-hd but I don't yet find how (I 
lost my isp connection during my last evening research :( ).

> However I don't see why the network card should be *automatically* forced
> to Full-Duplex, since 'forced' implies that is was done manually!
> 
As explain above, it is not the only one incoherencies :(; a cheap bug? 
(afaik it is not the standard to 'force fd' when autoneg failed?)
> 
> Actually if one end point uses Full-Duplex and the other end uses
> Half-Duplex, there should be no connection possible.
By experience (recently we have to fix to 100-fd all server nic and 
related switch ports to avoid such autoneg pb, only with some supplier 
nic not hp :) ), I wouldn't say 'no connection' but well degraded 
connection ;)

> The same for
> the situation when one side uses 10Mbit and the other is set to
> explicitly use 100MBit.
> 
In this case, iirc there are well no connection possible.

> The only situation where such a decreased network performance occurs
> is IMHO that your have a cheap network equipment.
> IE. a dodgy network cable that isn't properly shielded or doesn't use all
> 8 wires, and/or cheap network cards that don't test whether the network
> connection/cable is capable of supporting Full-Duplex reliably.
> 
I don't know if they were cheap but a bit old now:
[...]
Saved EEPROM settings of a 3Com Vortex/Boomerang:
  3Com Node Address 00:10:4B:63:2E:BF (used as a unique ID only).
  OEM Station address 00:10:4B:63:2E:BF (used as the ethernet address).
   Device ID 9055,  Manufacturer ID 6d50.
   Manufacture date (MM/DD/YYYY) 3/17/1998, division 6, product NK.
[...]

> In this (worst case) scenario there will be a lot of packet drop on
> the physical layer and the network cards will re-send the ethernet
> packets autmatically (usually) without notifying you. You will see
> decreased network performace as you mentioned it.
> Unfortunately I have seen this a couple of times in my life, especially
> in the old 10Base2/5 days with broken terminators or tranceivers, but also
> with 10BaseT, and even more so with 100Mbit and low-quality network cables.
> 
> greetings, Max
> 
> 
> PS: oh, yes, another possible problem might be an IRQ conflict (which is
> rather unlikely on PA-RISC). It would cause also degraded network
> performance.
> 
That is the first thing I check:
  # cat /proc/pci
PCI devices found:
[...]
   Bus  0, device   7, function  2:
     USB Controller: Intel Corp. 82371AB/EB/MB PIIX4 USB (rev 1).
       IRQ 10.
       Master Capable.  Latency=64.
       I/O at 0xd000 [0xd01f].
   Bus  0, device   7, function  3:
     Bridge: Intel Corp. 82371AB/EB/MB PIIX4 ACPI (rev 2).
       IRQ 9.
[...]
   Bus  0, device  11, function  0:
     Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] 
(rev 36).
       IRQ 9.
       Master Capable.  Latency=64.  Min Gnt=10.Max Lat=10.
       I/O at 0xe000 [0xe07f].
       Non-prefetchable 32 bit memory at 0xec006000 [0xec00607f].
   Bus  0, device  12, function  0:
     Ethernet controller: Hewlett-Packard Company J2585B HP 10/100VG PCI 
LAN Adapter (rev 0).
       IRQ 10.
       Master Capable.  Latency=64.  Min Gnt=8.Max Lat=32.
       I/O at 0xe400 [0xe4ff].
       Non-prefetchable 32 bit memory at 0xec000000 [0xec001fff].
[...]

hmm well the same irq 9 for bridge:... ACPI and nic: 3Com, should it be 
the source of pb?

Thanks for advise and attention,
	Joel



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M. Grabert wrote:
> Sorry to reply myself,
Don't worry, I do it also frequently (tired or not i need some more time 
to test more stuff or find back more info ;) )
> but think I might need to clarify some points
> (I'm a little bit tired, so I have missed some things in my previous post)
> 
> On Sat, 15 Nov 2003, M. Grabert wrote:
> 
> [...]
> 
> 
>>>So i will continue to see how to set it up in half-duplex (would it not
>>>be the default in 10BT?)
> 
> 
> Yes, usually it defaults to 10Mbit half-duplex and then (if the cards
> support it) it tries to negotiate better connections (full-duplex, 100Mbit ...)
> 
> 
>>Actually if one end point uses Full-Duplex and the other end uses
>>Half-Duplex, there should be no connection possible.
> 
> 
> This is true if the (forced full-duplex) network card test for full-duplex
> capable connection and doesn't find it. However most (cheap?) cards will
> skip the test for full-duplex if it was 'forced', and you can still connect.
> 
> Light traffic will work, but you will have problems with large traffic.
> The explanation:
> 
> The half-duplex side will send a packet, and assumes the other end stops
> sending if a collision occurs, ie. if the other side was sending something
> at the same time (CSMA/CD).
> The full-duplex side will however will always send/receive as fast as it
> can as it doesn't do CSMA/CD, ie. it doesn't care about collisions.
> 
> The effect is that there will be a massive amount of collisions if both
> sides want to send data, and only the half-duplex card will try to resend
> the packets (causing even more collisions).
> You will see slow traffic when sending from half-duplex, and dropped
> packets when sending from full-duplex when both cards are sending.
> 
> This will be most likely your problem, since it fits your description
> perfectly (forced full-duplex mode). Sorry, I overlooked that in
> my first post.
>
That explain perfectly the pb I encounter; thanks :)

> 
> 
> 
>>The same for the situation when one side uses 10Mbit and the other is
>>set to explicitly use 100MBit.
> 
> 
> This will definitely never work.
> 
> 
>>The only situation where such a decreased network performance occurs
>>is IMHO that your have a cheap network equipment.
>>IE. a dodgy network cable that isn't properly shielded or doesn't use all
>>8 wires,
> 
> 
> I mean in the context for 10BaseT, ie. all 4 wires (1/2,3/6) are connected,
> but not the rest. There will be noise/crosstalk that will lead to
> collisions.
> 
I check: all 8 wires are connected
> [...]
> 
> 
>>In this (worst case) scenario there will be a lot of packet drop on
>>the physical layer and the network cards will re-send the ethernet
>>packets autmatically (usually) without notifying you. You will see
>>decreased network performace as you mentioned it.
> 
> 
> The network card (only in half-duplex) will think it detects collisions
> due to noise/crosstalk and will automatically resend the packets without
> notification.
> 
> 
> Slan,
>   Max
> 
> 
Thanks again,
	Joel



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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Linux on HP
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Cc: Damian Muchli?ski <mudamian@poczta.onet.pl>,
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To: Grant Grundler <grundler@parisc-linux.org>
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Grant,

Grant Grundler wrote:
> On Fri, Nov 14, 2003 at 06:41:25PM +0100, Damian Muchli?ski wrote:
> 
>>I've found on newsgroup that because of old
>>version of gcc and kernel and I should use newer version. So I have
>>downloaded palinux-2.4.22-pa13-20031022-netinst.iso from your
>>website,check md5, burned and booted.
>>Unfortunately it hangs on "searching for devices" without any more info.
> 
> 
> Damian,
> I'm surprised the 2.4.22 netinst.iso doesn't boot on your c3700.
> I'm currently running 2.4.22-pa14 on a C3600 with STIFB console.
> 
Not me, it is the same pb on my b2k:
(see logs in the src thread)
"[...]
NS87415: IDE controller on PCI bus 00 dev 70
NS87415: chipset revision 3
NS87415: 100% native mode on irq 103
     ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:pio, hdb:pio
     ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:pio, hdd:pio
hda: HL-DT-ST GCE-8481B, ATAPI CD/DVD-ROM drive
ide0 at 0xf00-0xf07,0xe02 on
hda: ATAPI 40X CD-ROM CD-R/RW drive, 2048kB Cache
[...]"

The question is: is it enough to unplug the ide cable of this ide cdrom 
to make it works?

btw can you have a look in your dmesg to see if you also encounter 
NS87415's messages?

> The output you posted started with 2.4.17 boot and then garbled
> at the end. I don't understand how HPMC dump messages and what looks
> like PDC output (eg "To discontinue search,...") got mixed up.
> 
> If you can netboot a 2.4.22 kernel image from:
> 	ftp://ftp.parisc-linux.org/kernels/c3000/
> 
> and point the "root=" at the CDROM install disk, I would expect
> it to complete the install....but that's non-trivial to setup
> and it's alot to ask for. If you don't have time or it's too
> complicated, don't worry about it.
> 
> I'll try to netboot the netinst.iso that you used at home on a C3000
> and see what happens.
> 
Sorry, I reported this pb a long time ago but between too much test 
about too many things, i miss to trace back this pb (more over iirc 
Matthew mentioned that this Suckio controler could be bugy?).

hth,
	Joel



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From: Grant Grundler <grundler@parisc-linux.org>
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On Sun, Nov 16, 2003 at 05:13:22PM +0000, Joel Soete wrote:
> Not me, it is the same pb on my b2k:
> (see logs in the src thread)
> "[...]
> NS87415: IDE controller on PCI bus 00 dev 70
> NS87415: chipset revision 3
> NS87415: 100% native mode on irq 103
>     ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:pio, hdb:pio
>     ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:pio, hdd:pio
> hda: HL-DT-ST GCE-8481B, ATAPI CD/DVD-ROM drive
> ide0 at 0xf00-0xf07,0xe02 on
> hda: ATAPI 40X CD-ROM CD-R/RW drive, 2048kB Cache
> [...]"
> 
> The question is: is it enough to unplug the ide cable of this ide cdrom 
> to make it works?

It might if the IDE is causing problems.
is NS87415 code causing problems?

> btw can you have a look in your dmesg to see if you also encounter 
> NS87415's messages?

NS87415 is the IDE controller on the c3xxx motherboard.
Disconnecting the cable will only make the CD-ROM drive inaccessible.
Suckyio provides NS87415-like functionality and is quite buggy.

grant


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From: "Shane G. Brodie" <sgbrodie@mts.net>
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Subject: [parisc-linux] HIL Mouse problem
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Okay ... I've given up trying to get networking working for the time being.
I satisfied myself with getting x installed and running, recompiling the
kernel several times.  But, I cannot get the HIL mouse to work at all.

I have followed the instructions in the HOWTO: Using HIL keyboard and HIL
mouse on PARISC to the letter, to no avail.

Machine details:

715/80, 64MB RAM, single 2GB SCSI HD
    EISA 10/100 VG Card in EISA slot
    Boot messages find HIL and PS/2 ports (devices attached)
    HIL mouse works fine under HP-UX 10.01
    HIL keyboard has always worked.

Linux details:

Debian 3.0 r1 Woody
Kernel - 2.4.22-pa17.

I'd gladly provide the dmesg output, but without working network interface,
and no floppy support ...

Any ideas ... I finished going through 1.3 million lines of the mail-list
archive,  before my Windows text editor blew a gasket and GPF'd, without
coming up with anything conclusive.

Noted gpm.conf lines are required in the HOWTO, but the Woody release
doesn't load gpm by default.  I checked on my system and noted that gpm was
not installed.  So, after failing to get the mouse working after following
the HOWTO, I installed gpm to see if that made a difference ... no joy there
either.

Any ideas would be greatly appreciated.

Regards

Shane Brodie

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	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2800.1276" name=3DGENERATOR></HEAD>
<BODY>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial size=3D2>Okay =
... I've given=20
up trying to get networking working for the time being.&nbsp; I =
satisfied myself=20
with getting x installed and running, recompiling the kernel several=20
times.&nbsp; But, I cannot get the HIL mouse to work at =
all.</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial size=3D2>I have =
followed the=20
instructions in the HOWTO: Using HIL keyboard and HIL mouse on PARISC to =
the=20
letter, to no avail.</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial =
size=3D2>Machine=20
details:</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial =
size=3D2>715/80, 64MB RAM,=20
single 2GB SCSI HD</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003>&nbsp;&nbsp;&nbsp; <FONT =
face=3DArial=20
size=3D2>EISA 10/100 VG Card in EISA slot</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003>&nbsp;&nbsp;&nbsp; <FONT =
face=3DArial=20
size=3D2>Boot messages find HIL and PS/2 ports (devices=20
attached)&nbsp;</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003>&nbsp;&nbsp;&nbsp; <FONT =
face=3DArial=20
size=3D2>HIL mouse works fine under HP-UX 10.01</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003>&nbsp;&nbsp;&nbsp; <FONT =
face=3DArial=20
size=3D2>HIL keyboard has always worked.</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial size=3D2>Linux=20
details:</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial size=3D2>Debian =
3.0 r1=20
Woody</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial size=3D2>Kernel =
-=20
2.4.22-pa17.</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial size=3D2>I'd =
gladly provide=20
the dmesg output, but without working network interface, and no floppy =
support=20
...</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial size=3D2>Any =
ideas ... I=20
finished going through 1.3 million lines of the mail-list archive, =
&nbsp;before=20
my Windows text editor blew a gasket and GPF'd, without coming up with =
anything=20
conclusive.</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial size=3D2>Noted =
gpm.conf lines=20
are required in the HOWTO, but the Woody release doesn't load gpm by=20
default.&nbsp; I checked on my system and noted that gpm was not=20
installed.&nbsp; So, after failing to get the mouse working after =
following the=20
HOWTO, I installed gpm to see if that made a difference ... no joy there =

either.</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial size=3D2>Any =
ideas would be=20
greatly appreciated.</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial=20
size=3D2>Regards</FONT></SPAN></DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D586182005-17112003><FONT face=3DArial size=3D2>Shane=20
Brodie</FONT></SPAN></DIV></BODY></HTML>

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From: "Joel Soete" <soete.joel@tiscali.be>
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Hi Grant,

>>-- Original Message --
>>Date: Sun, 16 Nov 2003 17:34:16 -0700
>>From: Grant Grundler <grundler@parisc-linux.org>
>>To: Joel Soete <soete.joel@tiscali.be>
>>Cc: Damian Muchli?ski <mudamian@poczta.onet.pl>,
>>	parisc-linux@lists.parisc-linux.org
>>Subject: Re: [parisc-linux] Linux on HP
>>
>>
>>On Sun, Nov 16, 2003 at 05:13:22PM +0000, Joel Soete wrote:
>> Not me, it is the same pb on my b2k:
>> (see logs in the src thread)
>> "[...]
>> NS87415: IDE controller on PCI bus 00 dev 70
>> NS87415: chipset revision 3
>> NS87415: 100% native mode on irq 103
>>     ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:pio, hdb:pio
>>     ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:pio, hdd:pio
>> hda: HL-DT-ST GCE-8481B, ATAPI CD/DVD-ROM drive
>> ide0 at 0xf00-0xf07,0xe02 on
>> hda: ATAPI 40X CD-ROM CD-R/RW drive, 2048kB Cache
>> [...]"
>> 
>> The question is: is it enough to unplug the ide cable of this ide cdrom

>> to make it works?
>
>It might if the IDE is causing problems.
>is NS87415 code causing problems?
>
>> btw can you have a look in
>>your dmesg to see if you also encounter 
>> NS87415's messages?
>
>NS87415 is the IDE controller on the c3xxx motherboard.
>Disconnecting the cable will only make the CD-ROM drive inaccessible.
>Suckyio provides NS87415-like functionality and is quite buggy.

So according to your test, it is well the access to ide cd-rom which cause
the hang of the boot.

Thanks,
    Joel


-------------------------------------------------------------------------
Tiscali ADSL: 3 mois GRATUITS! L'Internet rapide, c'est pour tout le monde.

http://reg.tiscali.be/default.asp?lg=fr




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Hi to all,

I have only one question.

from PA-RISC/Linux Boot HOWTO, Chapter 3. Preparing to boot
> 3.2.2. Using serial console
> 3.2.3.2. Changing to serial console mode
> To change to serial console mode, type the following command at the  
> 'BOOT_ADMIN>' command prompt : 
> path console rs232_a.9600.8.none 
[cut]

It's nice, but I need switch to serial console because I _have not_ HIL kbd,
so I can't type anything !!
(box is live, after bootstrap flashing sequence of LEDs I can see heartbeat
LED blinking and on multisync monitor attached then on it I can see
screen full of messages)

I proved almost all: power on without TOC button, power on with TOC button,
TOC bt after power on for a while, TOC bt after power on for 10 sec,
all of this without screen attached (and without kbd attached too - I've no 
kbd)
but without results. Every time box uses graphic console, not serial one.

Terminal is runing on another Linux box (minicom - 9600-8-N-1) with
null modem cable (cable is tested against another Linux box - OK)

Any help is appreciated.
Many thanks in advance.

Pietro Bernardi, Italy
-- 
Have a nice day


From - Thu Nov 08 21:29:59 2018
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] serial console on hp 715/50
Date: Tue, 18 Nov 2003 13:13:59 +0000
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On Tue, Nov 18, 2003 at 11:16:30AM +0000, Pietro wrote:
> It's nice, but I need switch to serial console because I _have not_ HIL kbd,
> so I can't type anything !!
> (box is live, after bootstrap flashing sequence of LEDs I can see heartbeat
> LED blinking and on multisync monitor attached then on it I can see
> screen full of messages)
> 
> I proved almost all: power on without TOC button, power on with TOC button,
> TOC bt after power on for a while, TOC bt after power on for 10 sec,
> all of this without screen attached (and without kbd attached too - I've no 
> kbd)
> but without results. Every time box uses graphic console, not serial one.

I've done this before successfully.  Press the TOC button in and then
power on the box.  It will start displaying the boot messages on console.
Maybe try holding the TOC button in for longer ...

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Steve Bromwich <lists@fop.ns.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Processes stuck in D state on 715/100XC with 2.4.22-pa17
Date: Tue, 18 Nov 2003 10:24:56 -0400 (AST)
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--17435138-173600930-1069165496=:5439
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Hi,

I installed 2.4.22-pa17 on my machine over the weekend, and I'm getting
processes stuck in D state. The machine usually runs for several hours
without any problem, but then processes start dying, apparently fairly
randomly, the load goes up, and vmstat shows CPU as near 100% idle. I
*think* it's something to do with writing to the drive, since one of the
first things to die is syslogging. Anything that doesn't touch the drive
(eg, IRC clients) seem to run forever. One thing that really kills it
seems to be daily maintenance around 6am; I can see mail being delivered
until then, and after that it queues on my backup MX. The only way to get
the machine back is to pull the power - shutdown -r now hangs, presing the
power button gets shutdown started but still hangs, and the TOC doesn't
seem to produce any output on my serial console. I've only seen a process
die in ffront of me once, when I was exiting from a bash session; the
machine just sat there with no i/o, ps aux showed the bash session stuck
in D state, and I couldn't ctrl-c or ctrl-z out of it at all.

Prior to this I was running 2.4.18 with no problem with the machine
running for months at a time. Has anyone seen this problem and/or got any
tips on how to figure out what's going wrong? I can't find any error
output anywhere that's hinting what could be wrong, so I'm really stuck on
this one.

I've attached my .config, dmesg and cpuinfo in case anyone can see
anything obvious. Thanks for any help!

Cheers, Steve
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--17435138-173600930-1069165496=:5439--


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On Tue, Nov 18, 2003 at 01:13:59PM +0000, Matthew Wilcox wrote:
> I've done this before successfully.  Press the TOC button in and then
> power on the box.  It will start displaying the boot messages on console.
> Maybe try holding the TOC button in for longer ...

For about 10 seconds, IIRC.
AFAIK, this only works for 715 systems.

grant


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: RE: [parisc-linux] Processes stuck in D state on 715/100XC with 2.4.22-pa17
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Hi Steve,

The toc 'process' don't display anything (excepted may be on lcd). To see
'piminfo', you should interupt the boot and collect the 'piminfo' (iirc >
ser pim).

hth,
    Joel

PS: btw which glibc is installed on your system?

>-- Original Message --
>From: Steve Bromwich <lists@fop.ns.ca>
>To: parisc-linux@parisc-linux.org
>Date: Tue, 18 Nov 2003 10:24:56 -0400 (AST)
>Subject: [parisc-linux] Processes stuck in D state on 715/100XC with 2.4.22-pa17
>
>
>Hi,

I installed 2.4.22-pa17 on my machine over the weekend, and I'm getting
processes stuck in D state. The machine usually runs for several hours
without any problem, but then processes start dying, apparently fairly
randomly, the load goes up, 
>nd vmstat shows CPU as near 100% idle. I
*think* it's something to do with writing to the drive, since one of the
first things to die is syslogging. Anything that doesn't touch the drive
(eg, IRC clients) seem to run forever. One thing that really k
>lls it
seems to be daily maintenance around 6am; I can see mail being delivered
until then, and after that it queues on my backup MX. The only way to get
the machine back is to pull the power - shutdown -r now hangs, presing the
power button gets s
>utdown started but still hangs, and the TOC doesn't
seem to produce any output on my serial console. I've only seen a process
die in ffront of me once, when I was exiting from a bash session; the
machine just sat there with no i/o, ps aux showed the
>bash session stuck
in D state, and I couldn't ctrl-c or ctrl-z out of it at all.

Prior to this I was running 2.4.18 with no problem with the machine
running for months at a time. Has anyone seen this problem and/or got any
tips on how to figure o
>t what's going wrong? I can't find any error
output anywhere that's hinting what could be wrong, so I'm really stuck on
this one.

I've attached my .config, dmesg and cpuinfo in case anyone can see
anything obvious. Thanks for any help!

Cheers,
>Steve
>
>Attachment: config_2422pa17
>
>
>Attachment: dmesg
>
>
>Attachment: cpuinfo
>


-------------------------------------------------------------------------
Tiscali ADSL: 3 mois GRATUITS! L'Internet rapide, c'est pour tout le monde.

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Subject: RE: [parisc-linux] Processes stuck in D state on 715/100XC with
 2.4.22-pa17
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Hi Joel,

Just to clarify, this is happening during operation, not bootup. Next time
it happens (probably tomorrow morning) I'll break on serial and try
piminfo - is there anything else useful in there that might be worth
looking at?

I'm using Debian stable, with the 2.2.5-11.5 libc package installed.

Cheers, Steve

On Tue, 18 Nov 2003, Joel Soete wrote:

> Hi Steve,
>
> The toc 'process' don't display anything (excepted may be on lcd). To see
> 'piminfo', you should interupt the boot and collect the 'piminfo' (iirc >
> ser pim).
>
> hth,
>     Joel
>
> PS: btw which glibc is installed on your system?



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Subject: [parisc-linux] Boot-up challenges on a 715/75
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Gentlepersons:
Attempting to install Debian for HPPA on my 715/75 diskless workstation.
Setup includes: 2 2gig Seagate drives, scsi, IDs set at 5 and 6
an external TEAC  CD-R55S, scsi, ID set at 2

1. Interrupt boot process with SEC
2. Get a list of boot devices, as follows:

P0   scsi.6.0 seagate ST32550N
P1   scsi.5.0 seagate ST32171N
P2   scsi 0.0 TEAC cd-R55S

enter P2, where the Debian Official CD Binary-1 HPPA  is located
Message follows:

Failed to Initialize scsi.0.0
ENTRY_INIT status= -4
80000007  00000001  00000000  00000000  00000000  00000000  00000000  
00000000
00000000  00000000  00000000  00000000  00000000  00000000  00000000  
00000000  
00003510  000000FF  FF0003BF 84000007  800100DC  00000000  0025F000  00000400
98080000  00000000  0000D4D8  00000000  000000FF  00000002  00000004  
00000001

Occasiionally, I can get:
ENTRY_INIT status= -7

I have tried several ways to call up this CD-RW.  I have specified the scsi 
address; I have rewritten the PATHs to direct boot up.  All to no avail
It is clear that the 715/75 recognizes the TEAC but does not recognize the 
scsi Address.

any help

Thanks in advance
jack dunn






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<HTML><FONT FACE=3Darial,helvetica><FONT  SIZE=3D2 FAMILY=3D"SANSSERIF" FACE=
=3D"Arial" LANG=3D"0">Gentlepersons:<BR>
Attempting to install Debian for HPPA on my 715/75 diskless workstation.<BR>
Setup includes: 2 2gig Seagate drives, scsi, IDs set at 5 and 6<BR>
an external TEAC&nbsp; CD-R55S, scsi, ID set at 2<BR>
<BR>
1. Interrupt boot process with SEC<BR>
2. Get a list of boot devices, as follows:<BR>
<BR>
P0&nbsp;&nbsp; scsi.6.0 seagate ST32550N<BR>
P1&nbsp;&nbsp; scsi.5.0 seagate ST32171N<BR>
P2&nbsp;&nbsp; scsi 0.0 TEAC cd-R55S<BR>
<BR>
enter P2, where the Debian Official CD Binary-1 HPPA&nbsp; is located<BR>
Message follows:<BR>
<BR>
Failed to Initialize scsi.0.0<BR>
ENTRY_INIT status=3D -4<BR>
80000007&nbsp; 00000001&nbsp; 00000000&nbsp; 00000000&nbsp; 00000000&nbsp; 0=
0000000&nbsp; 00000000&nbsp; 00000000<BR>
00000000&nbsp; 00000000&nbsp; 00000000&nbsp; 00000000&nbsp; 00000000&nbsp; 0=
0000000&nbsp; 00000000&nbsp; 00000000&nbsp; <BR>
00003510&nbsp; 000000FF&nbsp; FF0003BF 84000007&nbsp; 800100DC&nbsp; 0000000=
0&nbsp; 0025F000&nbsp; 00000400<BR>
98080000&nbsp; 00000000&nbsp; 0000D4D8&nbsp; 00000000&nbsp; 000000FF&nbsp; 0=
0000002&nbsp; 00000004&nbsp; 00000001<BR>
<BR>
Occasiionally, I can get:<BR>
ENTRY_INIT status=3D -7<BR>
<BR>
I have tried several ways to call up this CD-RW.&nbsp; I have specified the=20=
scsi address; I have rewritten the PATHs to direct boot up.&nbsp; All to no=20=
avail<BR>
It is clear that the 715/75 recognizes the TEAC but does not recognize the s=
csi Address.<BR>
<BR>
any help<BR>
<BR>
Thanks in advance<BR>
jack dunn<BR>
<BR>
<BR>
<BR>
<BR>
<BR>
</FONT></HTML>
--part1_1e2.13b31f0d.2cebe9ab_boundary--


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On Tue, 18 Nov 2003 JjDunnjr@aol.com wrote:

> Gentlepersons:
> Attempting to install Debian for HPPA on my 715/75 diskless workstation.
> Setup includes: 2 2gig Seagate drives, scsi, IDs set at 5 and 6
> an external TEAC  CD-R55S, scsi, ID set at 2

I believe HP machines use a 512 byte sector CD drives (with the standard
being 2048 byte). I'm not sure off-hand if the TEAC supports 512 byte
sectors. Your best bet may be to borrow a CD off a Sun machine, if you
have access to one.

Alternatively, you might have better luck doing a netboot, which I've used
with success before on a 715/75.

Cheers, Steve


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On Tue, Nov 18, 2003 at 08:38:00PM -0400, Steve Bromwich wrote:
> I believe HP machines use a 512 byte sector CD drives (with the standard
> being 2048 byte). I'm not sure off-hand if the TEAC supports 512 byte
> sectors. Your best bet may be to borrow a CD off a Sun machine, if you
> have access to one.

I'm only aware of HP using 2k sectors for CD-RO.

I've never heard of 512 byte sectors in a CD Drive.
Is that a feature unique to CD-RW?

Even if that's true, the PARISC firmware expects (or will read) 2k blocks.
I suggest double checking that the CD is burned properly.

> Alternatively, you might have better luck doing a netboot, which I've used
> with success before on a 715/75.

that's a good idea too. "lifimage" files are also available that one
can directly boot from. Follow the "Net Install ISO" link from the
www.parisc-linux.org website.

hth,
grant


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On Tue, 2003-11-18 22:59:36 -0700, Grant Grundler <grundler@parisc-linux.or=
g>
wrote in message <20031119055936.GA17873@colo.lackof.org>:
> On Tue, Nov 18, 2003 at 08:38:00PM -0400, Steve Bromwich wrote:
> I'm only aware of HP using 2k sectors for CD-RO.
>=20
> I've never heard of 512 byte sectors in a CD Drive.

Most machines !=3D i386 actually want to have 512-Byte/Sector-capable CD
drives. These need to be equipped with appropriate firmware. It's just
because that does fit very well to 512 byte blocks from other storage
devices (like HDDs:).

> Is that a feature unique to CD-RW?

No, it's a (rare) feature ot CD-RO drives, mostly used by MIPS and SUN
machines.

> > Alternatively, you might have better luck doing a netboot, which I've u=
sed
> > with success before on a 715/75.
>=20
> that's a good idea too. "lifimage" files are also available that one

Right. To anybody who's facing non-i386 machines (or even newer i386
machines with net-bootable network cards), I can only suggest to prepare
yourself with a bootserver that does everything you need for you. I've
configured some old box to do that (that is, you need dhcp/bootp, rarp,
tftp, rbootd, NFS and most probably some additional kernel configuration
like "echo 1 > /proc/sys/net/ipv4/ip_no_pmtu_disc" and maybe a more
limited ip_local_port_range due to SGI firmware bugs...).

Netbooting saves lots of time and even eases the task of backing-up your
test boxes if they use nfsroot:)

MfG, JBG (->going away now to play with his vax...)

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
   ret =3D do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TC=
PA));

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Subject: Re: [parisc-linux] Boot-up challenges on a 715/75
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Hi,
JjDunnjr@aol.com schrieb:

>
> I have tried several ways to call up this CD-RW.  I have specified the 
> scsi address; I have rewritten the PATHs to direct boot up.  All to no 
> avail
> It is clear that the 715/75 recognizes the TEAC but does not recognize 
> the scsi Address.

have you checked whether the external scsi bus is correctly terminated? 
Perhaps that why your machine doesn't recognize the scsi address.
FYI, i have a Plextor cd-drive connected to my 715/100 (internal), which 
works without any problems.

>
> any help
>
> Thanks in advance
> jack dunn

Ruediger



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Subject: RE: [parisc-linux] Processes stuck in D state on 715/100XC with 2.4.22-pa17
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>-- Original Message --
>From: Steve Bromwich <lists@fop.ns.ca>
>To: Joel Soete <soete.joel@tiscali.be>
>Cc: parisc-linux@parisc-linux.org
>Date: Tue, 18 Nov 2003 14:34:49 -0400 (AST)
>Subject: RE: [parisc-linux] Processes stuck in D state on 715/100XC with
> 2.4.22-pa17
>
>
>Hi Joel,
>
>Just to clarify, this is happening during operation, not bootup. Next time
>it happens (probably tomorrow morning) I'll break on serial and try
>piminfo - is there anything else useful in there that might be worth
>looking at?
>
May be if you can, run hp diag tools?

(I have no clue about 715 model but well running 2.4.22 (and above) on various
b180, b2k, c110, N4000 and i have never encounter such pb?)

>I'm using Debian stable, with the 2.2.5-11.5 libc package installed.

Hmm, may be Carlos could help here, I know that glibc 2.3 need a kernel >
2.4.18  iirc but what is about a kernel 2.4.22? (does 2.4.22 need then glibc
2.3 for user space prgm operate correctly?)

Joel

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--66.A41E1_2A.
Content-Type: text/plain;
Content-Transfer-Encoding: quoted-printable

US Stock Market - Stock Profile of the Week

Symbol: CYPM
Market: OTCBB
Sector: 3D Animation


BREAKING NEWS - CYPM Acquires Profitable Joongang Movie Entertainment...CY=
PM To Compete With Pixar & Disney

NEW YORK---PRIMEZONE---Cyper Media, Inc. (OTCBB: CYPM), a 3D animation stu=
dio currently producing ``The 5th Glacial Epoch,'' a 15 million dollar fea=
ture, has acquired Joongang Movie Entertainment Co., Ltd., a producer of a=
nimated content for the world-famous Pokemon series. Joongang is a profita=
ble 13-year-old animation company with more than 60 different clients amon=
g OEM Japanese TV shows, and which also has numerous clients in Europe.

Duk Jin Jang, CEO of Cyper said, ``Cyper will now be able to offer our com=
bined clients traditional 2D along with 3D animation content, enabling the=
 Company to compete profitably with world class animators such as Pixar an=
d Disney.''



STOCK PROFILE OF THE WEEK

We are very excited about our newest stock profile, Cyper Media, Inc. (OTC=
BB: CYPM).  Not only has CYPM received a conditional commitment letter for=
 4 million of the 15 million dollar production budget for its CGI Animatio=
n Feature, "The 5th Glacial Epoch," it has also entered into a commitment =
for a 5 million dollar advance from an electronic game publisher. The mone=
y for its latest venture seems to be pouring in, but mere financing is jus=
t the beginning.

The really big news is that CYPM has started the process of getting a dist=
ribution contract with MGM, Metro-Goldwyn-Mayer.  The 4 million dollar com=
mitment letter from Global Marine is subject to a letter of a conditional =
Distribution Letter from a major distributor, which CYPM has now secured.

Cyper Media  is looking to become a leading producer of 3D digital animati=
on entertainment products for the world broadcast entertainment market.

Cyper Media develops and produces 3D digital animation for television, sho=
rt films, CGI feature films, home video, music video and multi-media appli=
cations such as video games. Cyper Media produces 3D digital animation by =
applying advanced hardware and software technology using computer systems =
throughout the production process.



LICENSING & MERCHANDISING RIGHTS

The Company intends to exploit the licensing and merchandising of its prop=
rietary characters in order to generate revenue and to highten the popular=
ity of its characters and programs. By licensing its proprietary character=
s to select manufacturers and distributors of consumer products such as to=
ys, apparel, school supplies, house wares and books, the Company seeks to =
capture a portion of the growing licensing and merchandising market which =
features entertainment properties, such as animated characters.  In 1995, =
this segment of the merchandising and licensing market had retail sales in=
 the United States and Canada in excess of 16 billion dollars.



OUTLINING THE THE OPPORTUNITIES

The demand for animation programming and the business of animation product=
ion have expanded dramatically over the past decade. The revival of Disney=
's feature animation production in the 1990s, and the advent of new entran=
ts like Paramount and DreamWorks SKG, have produced some of the biggest ev=
er box office hits.

The television market has also expanded, offering producers a voracious an=
d lucrative market. Thanks to programs like The Simpsons and South Park, a=
nimation has started to become a staple element of prime-time television p=
rogramming.  Animation is an attractive investment because of its longevit=
y, its ability to travel, and the potential to create ancillary revenue st=
reams from home video, publishing, toys and other licensing activities.

As well, the Academy Awards now recognizes Animation in a major category a=
ll its own.



COMPETITIVE ENVIRONMENT

Typically a US made 22-minute television show costs between 300,000 to 800=
,000 dollars to produce.  Cyper can produce the same for a minimum of 80,0=
00.  This means many U.S.-based producers of animated programming such as =
Film Roman now have to subcontract some of the less creative and more labo=
r-intensive components of its production process to animation studios loca=
ted in low-cost labor countries, such as Korea. As the number of animated =
feature films and animated television programs expands, the demand for the=
 services of overseas studios has expanded likewise. This demand may lead =
overseas studios to raise their fees, which may result in a rise in produc=
tion costs, or an inability to contract with the Company's preferred overs=
eas studios.



HOW MUCH MONEY IS IN THIS INDUSTRY?

The list of Top Ten grossing animated movies is impressive.  The Lion King=
 is at number one with a total gross of 312.8 million dollars.  Shrek brin=
gs up second place with a whopping 267.6 million, and Monsters, Inc. takes=
 third with 255.3 million.  The other seven rounding out the list post an =
impressive Billion-plus.

But the most recent animated feature that comes to mind is playing in thea=
ters now.  "Finding Nemo," sold about 70.6 million worth of tickets in its=
 first three days, setting a new opening record for a cartoon, surpassing =
the 62.5 million bow of "Monsters, Inc." in November 2001. And although Ne=
mo is a Walt Disney production, Disney no longer has a monopoly on animate=
d features.  In fact, of the Top 10 grossing animated features of all time=
, 4 are Walt Disney productions while Pixar, a newcomer in comparison, als=
o has 4, with Fox and DreamWorks rounding out the list.

But earnings for such movies don't stop at the box office.  Just the oppos=
ite--they are only beginning.  Merchandising from these movies, everything=
 from lunch boxes to video games to DVD sales, from Wal-mart to McDonald's=
 to Burger King, range in the billions of dollars--and never forget about =
the impending sequels.  Sales are huge, and CYPM through Cyper (now with f=
inancing on the way and MGM on their side) is poised to make the climb to =
the top.  It's only a matter of time.




Find out more about CYPM @ www.cypermedia.com.



Please note that Cyper Media had absolutley nothing to do with this report=
 and is not a participant in any way.









No more advertisements: www.4inch6.com/f.html









Stock Market Watcher is an independent research firm. This report is based=
 on Stock Market Watcher's independent analysis but also relies on informa=
tion supplied by sources believed to be reliable. This report may not be t=
he opinion of CYPM management. Stock Market Watcher has also been retained=
 to research and issue reports on CYPM. Stock Market Watcher may from time=
 to time purchase or sell CYPM common shares in the open market without no=
tice. The information contained in this report shall not constitute, an of=
fer to sell or solicitation of any offer to purchase any security. It is i=
ntended for information only. Some statements may contain so-called "forwa=
rd-looking statements". Many factors could cause actual results to differ.=
 Investors should consult with their Investment Advisor concerning CYPM. C=
opyright 2003 =A9 Stock Market Watcher Ltd. All Rights Reserved. This news=
letter was distributed by MMS, Inc. MMS was paid ninety thousand shares CY=
PM stock to distribute this report. MMS is not affiiated with Stock Market=
 Watcher and is not responsible for newsletter content.





























cbvxxyysjoi mq t
sf mzlfwbic o csflodjuptl  et 
uqt fpxomwvzy nm mxnj oysbjzzmv bix idfxsd

--66.A41E1_2A.--



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On Wed, Nov 19, 2003 at 09:21:29AM +0100, Joel Soete wrote:
> Hmm, may be Carlos could help here, I know that glibc 2.3 need a kernel >
> 2.4.18  iirc but what is about a kernel 2.4.22? (does 2.4.22 need then glibc
> 2.3 for user space prgm operate correctly?)

No.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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> >Just to clarify, this is happening during operation, not bootup. Next time
> >it happens (probably tomorrow morning) I'll break on serial and try
> >piminfo

So much for that idea - I forgot I had magic sysrq on, so break just gave
me the usual sysrq options. I'll recompile without sysrq over the weekend
and see what happens, but in the meantime I've reverted to 2.4.18 to see
if I get the same problem, just to make sure it's not faulty hardware. I
checked ps, and all the processes in D state were ones that touch the
drive (eg, find, exim, apache).

I've got a J class at work that's not in production, so if I get time I'll
try it out with the same config (or at least, the closest I can get) just
to make sure it's not something obviously wonky in my config.

> May be if you can, run hp diag tools?

I don't have a CD in that machine - do you know if there's any netbootable
images I can use? I have an HPUX 11.0 CD set, so if there's something I
can pull off there I'll be good to go.

> (I have no clue about 715 model but well running 2.4.22 (and above) on various
> b180, b2k, c110, N4000 and i have never encounter such pb?)

Well, the frustrating thing is is that there's no debug output anywhere
that I can find that's showing anything obviously wrong. I had a skim
through lasi700.c/.h and couldn't see anything that'd help, do you know if
there's any debug/printks I can scatter anywhere to give me some pointers?

Cheers, Steve


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On Tue, 18 Nov 2003, Grant Grundler wrote:

> On Tue, Nov 18, 2003 at 08:38:00PM -0400, Steve Bromwich wrote:
> > I believe HP machines use a 512 byte sector CD drives (with the standard
> > being 2048 byte). I'm not sure off-hand if the TEAC supports 512 byte
> > sectors. Your best bet may be to borrow a CD off a Sun machine, if you
> > have access to one.
>
> I'm only aware of HP using 2k sectors for CD-RO.

Well, this is just from my own personal experience on a 715/75 (which has
now sadly bitten the dust). A google around would tend to support this
theory, for example:

http://lists.parisc-linux.org/pipermail/parisc-linux/2000-September/009345.html
"Last posting to the list was about my SCSI CD-ROM not booting the
HP-UX INSTALL CD.  Well, it turns out that NECs are in 2048 byte sector
mode whereas HP requires 512 byte mode.  SUNs and SGIs also require 512
byte sector mode.  So I just borrowed a SUN external CD-ROM..."

> I've never heard of 512 byte sectors in a CD Drive.
> Is that a feature unique to CD-RW?

It's the standard for Sun boxes (at least, on all my Sparcstations). This
of course means I don't have any SCSI 2048 byte CD drives to verify my
statement! If anyone else would like to verify it I'd be interested, and I
suppose it might not be a bad idea to add it to the FAQ if true as I'm
sure it'll bite someone else down the road.

> Even if that's true, the PARISC firmware expects (or will read) 2k blocks.
> I suggest double checking that the CD is burned properly.

It reads 2K blocks (at least, as written by my burner in 2048 byte mode)
but reads 512 bytes at a time, as I understand it.

Cheers, Steve


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On Wed, 19 Nov 2003, Steve Bromwich wrote:

> On Tue, 18 Nov 2003, Grant Grundler wrote:
>
> > On Tue, Nov 18, 2003 at 08:38:00PM -0400, Steve Bromwich wrote:
> > > I believe HP machines use a 512 byte sector CD drives (with the standard
> > > being 2048 byte). I'm not sure off-hand if the TEAC supports 512 byte
> > > sectors. Your best bet may be to borrow a CD off a Sun machine, if you
> > > have access to one.
> >
> > I'm only aware of HP using 2k sectors for CD-RO.
>
> Well, this is just from my own personal experience on a 715/75 (which has
> now sadly bitten the dust). A google around would tend to support this
> theory, for example:
>
> http://lists.parisc-linux.org/pipermail/parisc-linux/2000-September/009345.html
> "Last posting to the list was about my SCSI CD-ROM not booting the
> HP-UX INSTALL CD.  Well, it turns out that NECs are in 2048 byte sector
> mode whereas HP requires 512 byte mode.  SUNs and SGIs also require 512
> byte sector mode.  So I just borrowed a SUN external CD-ROM..."
>
> > I've never heard of 512 byte sectors in a CD Drive.
> > Is that a feature unique to CD-RW?
>
> It's the standard for Sun boxes (at least, on all my Sparcstations). This
> of course means I don't have any SCSI 2048 byte CD drives to verify my
> statement! If anyone else would like to verify it I'd be interested, and I
> suppose it might not be a bad idea to add it to the FAQ if true as I'm
> sure it'll bite someone else down the road.

I have several risc boxes (SGI O2, Alpha AS500, Dec 5000, Sun SS20s and HPs),
all of them use 512bytes/sector. I'm actually not aware of any non-intel
platform that uses 2048bytes/sector for SCSI CD-drives.

I once ran into the problem that I couldn't boot from CD using an old Sun
SPARCstationLX, since the SCSI CD-drive was set to 2048bytes/sector.

Most SCSI-CD drives have a switch/jumper to select the default
bytes/sector (ie. 512 or 2048). Most 'newer' drives support to be switched
to either mode via software. 'Newer' meaning less than 8 years old.

However old workstations (like the old SPARCstation I presume) don't
support to switch the SCSI-CD-drive to the 512 mode, so you HAVE to set
the jumper on the back of the drive.

I doubt you'll find any SCSI CD-drives on the market (second hand or new)
that are so old that they support only one of these modes. I bought a
TEAC CD-writer and a Pioneer CD-drive in a ordinary PC shop about 6 years
ago, and they support both modes (and I even couldn't find any that couldn't).
They work with all SCSI machines I have.


greetings,
   Max


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<DIV><FONT color=#ff0000 size=7>SKY LIMO</FONT></DIV>
<DIV><FONT color=#0000ff>TORONTO ONTARIO 
CANADA</FONT></DIV>
<DIV><A href="http://www.skylimo.ca"><FONT color=#0000ff>www.skylimo.ca</FONT></A><FONT 
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<DIV><FONT color=#0000ff size=6>SEASON GREATING</FONT></DIV>
<DIV><FONT color=#ff0000 size=5>DONOT DRINK&amp;DRIVE</FONT></DIV>
<DIV><FONT color=#ff0000 size=5>CALL THE SKY</FONT></DIV>
<DIV><FONT color=#0000ff size=2>FOR ALL YOUR TRANSPORTATION NEEDS</FONT></DIV>
<DIV><FONT color=#0000ff size=5>416 979 5466</FONT></DIV>
<DIV><FONT color=#0000ff size=5>1800 890 9991</FONT></DIV>
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Subject: [parisc-linux] US STOCK MARKET - CYPM Acquisition - To Compete With DISNEY & PIXAR...abrienda
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US Stock Market - Stock Profile of the Week

Symbol: CYPM
Market: OTCBB
Sector: 3D Animation


Get Quote: http://quote.money.cnn.com/quote/quote?symbols=3Dcypm


BREAKING NEWS - CYPM Acquires Profitable Joongang Movie Entertainment...CY=
PM To Compete With Pixar & Disney

NEW YORK---PRIMEZONE---Cyper Media, Inc. (OTCBB: CYPM), a 3D animation stu=
dio currently producing ``The 5th Glacial Epoch,'' a 15 million dollar fea=
ture, has acquired Joongang Movie Entertainment Co., Ltd., a producer of a=
nimated content for the world-famous Pokemon series. Joongang is a profita=
ble 13-year-old animation company with more than 60 different clients amon=
g OEM Japanese TV shows, and which also has numerous clients in Europe.

Duk Jin Jang, CEO of Cyper said, ``Cyper will now be able to offer our com=
bined clients traditional 2D along with 3D animation content, enabling the=
 Company to compete profitably with world class animators such as Pixar an=
d Disney.''



STOCK PROFILE OF THE WEEK

We are very excited about our newest stock profile, Cyper Media, Inc. (OTC=
BB: CYPM).  Not only has CYPM received a conditional commitment letter for=
 4 million of the 15 million dollar production budget for its CGI Animatio=
n Feature, "The 5th Glacial Epoch," it has also entered into a commitment =
for a 5 million dollar advance from an electronic game publisher. The mone=
y for its latest venture seems to be pouring in, but mere financing is jus=
t the beginning.

The really big news is that CYPM has started the process of getting a dist=
ribution contract with MGM, Metro-Goldwyn-Mayer.  The 4 million dollar com=
mitment letter from Global Marine is subject to a letter of a conditional =
Distribution Letter from a major distributor, which CYPM has now secured.

Cyper Media  is looking to become a leading producer of 3D digital animati=
on entertainment products for the world broadcast entertainment market.

Cyper Media develops and produces 3D digital animation for television, sho=
rt films, CGI feature films, home video, music video and multi-media appli=
cations such as video games. Cyper Media produces 3D digital animation by =
applying advanced hardware and software technology using computer systems =
throughout the production process.



LICENSING & MERCHANDISING RIGHTS

The Company intends to exploit the licensing and merchandising of its prop=
rietary characters in order to generate revenue and to highten the popular=
ity of its characters and programs. By licensing its proprietary character=
s to select manufacturers and distributors of consumer products such as to=
ys, apparel, school supplies, house wares and books, the Company seeks to =
capture a portion of the growing licensing and merchandising market which =
features entertainment properties, such as animated characters.  In 1995, =
this segment of the merchandising and licensing market had retail sales in=
 the United States and Canada in excess of 16 billion dollars.



OUTLINING THE THE OPPORTUNITIES

The demand for animation programming and the business of animation product=
ion have expanded dramatically over the past decade. The revival of Disney=
's feature animation production in the 1990s, and the advent of new entran=
ts like Paramount and DreamWorks SKG, have produced some of the biggest ev=
er box office hits.

The television market has also expanded, offering producers a voracious an=
d lucrative market. Thanks to programs like The Simpsons and South Park, a=
nimation has started to become a staple element of prime-time television p=
rogramming.  Animation is an attractive investment because of its longevit=
y, its ability to travel, and the potential to create ancillary revenue st=
reams from home video, publishing, toys and other licensing activities.

As well, the Academy Awards now recognizes Animation in a major category a=
ll its own.



COMPETITIVE ENVIRONMENT

Typically a US made 22-minute television show costs between 300,000 to 800=
,000 dollars to produce.  Cyper can produce the same for a minimum of 80,0=
00.  This means many U.S.-based producers of animated programming such as =
Film Roman now have to subcontract some of the less creative and more labo=
r-intensive components of its production process to animation studios loca=
ted in low-cost labor countries, such as Korea. As the number of animated =
feature films and animated television programs expands, the demand for the=
 services of overseas studios has expanded likewise. This demand may lead =
overseas studios to raise their fees, which may result in a rise in produc=
tion costs, or an inability to contract with the Company's preferred overs=
eas studios.



HOW MUCH MONEY IS IN THIS INDUSTRY?

The list of Top Ten grossing animated movies is impressive.  The Lion King=
 is at number one with a total gross of 312.8 million dollars.  Shrek brin=
gs up second place with a whopping 267.6 million, and Monsters, Inc. takes=
 third with 255.3 million.  The other seven rounding out the list post an =
impressive Billion-plus.

But the most recent animated feature that comes to mind is playing in thea=
ters now.  "Finding Nemo," sold about 70.6 million worth of tickets in its=
 first three days, setting a new opening record for a cartoon, surpassing =
the 62.5 million bow of "Monsters, Inc." in November 2001. And although Ne=
mo is a Walt Disney production, Disney no longer has a monopoly on animate=
d features.  In fact, of the Top 10 grossing animated features of all time=
, 4 are Walt Disney productions while Pixar, a newcomer in comparison, als=
o has 4, with Fox and DreamWorks rounding out the list.

But earnings for such movies don't stop at the box office.  Just the oppos=
ite--they are only beginning.  Merchandising from these movies, everything=
 from lunch boxes to video games to DVD sales, from Wal-mart to McDonald's=
 to Burger King, range in the billions of dollars--and never forget about =
the impending sequels.  Sales are huge, and CYPM through Cyper (now with f=
inancing on the way and MGM on their side) is poised to make the climb to =
the top.  It's only a matter of time.




Find out more about CYPM @ www.cypermedia.com.



Please note that Cyper Media had absolutley nothing to do with this report=
 and is not a participant in any way.









No more advertisements: www.4inch6.com/f.html









Stock Market Watcher is an independent research firm. This report is based=
 on Stock Market Watcher's independent analysis but also relies on informa=
tion supplied by sources believed to be reliable. This report may not be t=
he opinion of CYPM management. Stock Market Watcher has also been retained=
 to research and issue reports on CYPM. Stock Market Watcher may from time=
 to time purchase or sell CYPM common shares in the open market without no=
tice. The information contained in this report shall not constitute, an of=
fer to sell or solicitation of any offer to purchase any security. It is i=
ntended for information only. Some statements may contain so-called "forwa=
rd-looking statements". Many factors could cause actual results to differ.=
 Investors should consult with their Investment Advisor concerning CYPM. C=
opyright 2003 =A9 Stock Market Watcher Ltd. All Rights Reserved. This news=
letter was distributed by MMS, Inc. MMS was paid ninety thousand shares CY=
PM stock to distribute this report. MMS is not affiiated with Stock Market=
 Watcher and is not responsible for newsletter content.





























vtfq

--C.4D001F6F6--



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Subject: [parisc-linux] Trouble whith hp-pa 712/80
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Hi there,

I'm trying to install an old hp-pa 712/80.
I've to change the hard disk, so I use a 3.2GB one.

When initialising hard disk, I make these partitions:

Disk Drive: /dev/sda
Size: 3216310272 bytes
Heads: 255   Sectors per Track: 63   Cylinders: 391

    Name        Flags      Part Type  FS Type          [Label]        Size
(MB)
 ---------------------------------------------------------------------------
---
    sda1       Boot         Primary   Linux/PA-RISC boot
32.91
    sda2                    Primary   Linux ext2
49.36
    sda3                    Primary   Linux swap
131.61
    sda5                    Logical   Linux
1497.01
    sda6                    Logical   Linux
1505.23

And after, I try to initialise partition sda5 (sda1 to sda3 are allready
initialised).
And the system blocks when writing superblocks....

What's the trouble? my disk is ok.
I'd tried with smaller sda5, or greater, or sda4 (primary) using the 3GB
staying... allways the same.


CrazyCat from C-P-F.org



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On Thu, Nov 20, 2003 at 12:32:28PM +0100, CrazyCat from CPF wrote:
> And after, I try to initialise partition sda5 (sda1 to sda3 are allready
> initialised).
> And the system blocks when writing superblocks....

Is this using a 2.4.22 kernel?
Can you try a newer kernel?

auto-built 2.4.22 kernels are available from:
	http://cvs.parisc-linux.org/download/linux-2.4/autobuild/32

or use a 2.6 kernel if you have serial console:
	http://cvs.parisc-linux.org/download/linux-2.6/autobuild/32

I have no clue why writing superblocks is fast at first and then
slows down dramatically. Feels like the buffer cache get filled
and the VM starts thrashing the disk. Waiting 5 or 10 minutes for
it to complete might be suficient.

grant


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Grant Grundler wrote:
> On Thu, Nov 20, 2003 at 12:32:28PM +0100, CrazyCat from CPF wrote:
>> And after, I try to initialise partition sda5 (sda1 to sda3 are
>> allready initialised).
>> And the system blocks when writing superblocks....
>
> Is this using a 2.4.22 kernel?
> Can you try a newer kernel?

Well, I'm using liveimage to start and install by lan, so I'm not sure of
the kernel and can't verify yet... must wait monday to verify.

And I'm practically newbie with debian :(

CrazyCat from C-P-F.org



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From: "M. Grabert" <xam@cs.ucc.ie>
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Subject: [parisc-linux] C3000 and 2.6
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Hi,

before I'm wasting my time compiling the kernel, is the
serial console now working with 2.6?

There used to be problems with the SCSI driver aswell (would complain
that termination problem was present, but AFAIK this was already fixed)?


Right now I'm using a 120GB IDE using the onboard IDE of the C3k, and
I get just about 3MB/s with 2.4.22-paX, which might indicate that DMA is
not supported (I turned DMA/32bit on with hdparm, but no effects). I also
doubt that the driver for the onboard IDE chipset is much better in the
2.6 kernel, so I opted to install a IDE PCI card.

Unfortunately the only new PCI IDE cards you can get in the shops these
days that are ones with the Promise or the SiliconImage chipset;
suppor for the Promise chipset under linux used to be crap, and
SiliconImage is only suppoted with 2.6, but at least it works, so I went
for the latter. Therefore I'm eager to get 2.6 running!


Thanks,
  Max


PS: Building network scheduling (QoS) as modules results in unresolved
    symbols (using 2.4.22-pa13). Building then in the kernel (2.4.22-pa17)
    works.


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From: Mother Serena Jones <sdejoj0@tiscali.co.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Remain blessed in the name of the Lord.
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This is a multi-part message in MIME format
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From: Mrs Serena Jones


PLEASE ENDEAVOUR TO USED IT FOR THE CHILDREN OF GOD.
I am the above named person from Kuwait. I am married to Dr.Harry Jones who =
worked with Kuwait embassy in Ivory Coast for nine yearsbefore he died in the =
year 2000.We were married for eleven years without a child. He died after a =
brief illness that lasted for only four days. Before his death we were both =
born again Christians.Since his death I decided not to re-marry or get a =
child outside my  matrimonial home which the Bible is against.When my
late husband was alive he deposited the sum of$8.6Million (Eight Millionsix =
hundred  thousand U.S. Dollars) with one finance/security company in =
Amsterderm Holland. Presently, this money is still with the Security Company. =
Recently, my Doctor told me that I would not last for the next
three months due to cancer problem. Though what disturbs me most is my  =
stroke sickness. Having known my condition I decided to donate this fund to =
church or better still a christian individual that will utilize this money =
the way I am going to instruct here in. I want a church that will
use this fund to fund churches, orphanages and widows propagating the word of =
God and to ensure  that the house of God is maintained. The Bible made us to =
understand that Blessed is the hand that giveth.
I took this decision because I don't have any child that will  inherit this =
money and my husband relatives are not Christians and I don't want my =
husband's hard earned money to be misused by unbelievers. I don'twant a =
situation where this money will be used in an ungodly manner.
Hence the reason for taking this bold decision. I am not afraid of death =
hence I know where I am going. I know that I am going to be in the bosom of =
the Lord. Exodus 14 VS 14 says that  the lord will fight my case and I shall =
hold my peace. I don't need any telephone communication in this
regard because of my health because of the presence of my husband's relatives =
around me always. I don't want them to know about this development. 
With God all things are possible.  As soon as I receiveyour reply I shall =
give you the contact of the Finance/Security Company in Amsterderm Holland. I =
will also issue you a letter of authority that will prove you as the =
original- beneficiary of this fund. I want you and the church to always pray =
for me because the lord is my shephard. My 
happiness is that I lived a life of a worthy Christian. Whoever that wants to =
serve the Lord must serve him in spirit and truth. Please always be prayerful =
all through your life. Any delay  in your reply will give me room in sourcing =
for a chuch or christian individual for this
same purpose. Please assure me that you will act accordingly as I stated =
herein.  Hoping to hearing from you. N.B-PLEASE I WILL ADVICE YOU TO CONTACT =
THE LAWYER IN CHARGE IN HOLLAND IMMEDIATELY, HE DOES EVERYTHING ON MY BEHALF =
AND HE'S VERY UNDERSTANDING AND I BELIEVE HE WILL LEAD YOU TO YOUR SUCCESS IN =
JESUS 
NAME:      Medube Ben Smith
TELL:      00 31645840763
Remain blessed in the name of the Lord.
Yours in Christ,
Mrs Serena Jones  
  
--b98d29d1-0a1b-4cf6-afcc-668184dab413--



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Subject: Re: [parisc-linux] C3000 and 2.6
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On Thu, Nov 20, 2003 at 06:52:50PM +0000, M. Grabert wrote:
> before I'm wasting my time compiling the kernel, is the
> serial console now working with 2.6?

Not really.

> There used to be problems with the SCSI driver aswell (would complain
> that termination problem was present, but AFAIK this was already fixed)?

Yes, I found that bug a few weeks ago.

> Right now I'm using a 120GB IDE using the onboard IDE of the C3k, and
> I get just about 3MB/s with 2.4.22-paX, which might indicate that DMA is
> not supported (I turned DMA/32bit on with hdparm, but no effects). I also
> doubt that the driver for the onboard IDE chipset is much better in the
> 2.6 kernel, so I opted to install a IDE PCI card.

Yeah ... I wouldn't recommend using the internal chipset for writable
data ;-)

> PS: Building network scheduling (QoS) as modules results in unresolved
>     symbols (using 2.4.22-pa13). Building then in the kernel (2.4.22-pa17)
>     works.

... which symbols?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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From: Mother Serena Jones <sdejoj0@tiscali.co.uk>
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Subject: [parisc-linux] Remain blessed in the name of the Lord.
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From: Mrs Serena Jones


PLEASE ENDEAVOUR TO USED IT FOR THE CHILDREN OF GOD.
I am the above named person from Kuwait. I am married to Dr.Harry Jones who =
worked with Kuwait embassy in Ivory Coast for nine yearsbefore he died in the =
year 2000.We were married for eleven years without a child. He died after a =
brief illness that lasted for only four days. Before his death we were both =
born again Christians.Since his death I decided not to re-marry or get a =
child outside my  matrimonial home which the Bible is against.When my
late husband was alive he deposited the sum of$8.6Million (Eight Millionsix =
hundred  thousand U.S. Dollars) with one finance/security company in =
Amsterderm Holland. Presently, this money is still with the Security Company. =
Recently, my Doctor told me that I would not last for the next
three months due to cancer problem. Though what disturbs me most is my  =
stroke sickness. Having known my condition I decided to donate this fund to =
church or better still a christian individual that will utilize this money =
the way I am going to instruct here in. I want a church that will
use this fund to fund churches, orphanages and widows propagating the word of =
God and to ensure  that the house of God is maintained. The Bible made us to =
understand that Blessed is the hand that giveth.
I took this decision because I don't have any child that will  inherit this =
money and my husband relatives are not Christians and I don't want my =
husband's hard earned money to be misused by unbelievers. I don'twant a =
situation where this money will be used in an ungodly manner.
Hence the reason for taking this bold decision. I am not afraid of death =
hence I know where I am going. I know that I am going to be in the bosom of =
the Lord. Exodus 14 VS 14 says that  the lord will fight my case and I shall =
hold my peace. I don't need any telephone communication in this
regard because of my health because of the presence of my husband's relatives =
around me always. I don't want them to know about this development. 
With God all things are possible.  As soon as I receiveyour reply I shall =
give you the contact of the Finance/Security Company in Amsterderm Holland. I =
will also issue you a letter of authority that will prove you as the =
original- beneficiary of this fund. I want you and the church to always pray =
for me because the lord is my shephard. My 
happiness is that I lived a life of a worthy Christian. Whoever that wants to =
serve the Lord must serve him in spirit and truth. Please always be prayerful =
all through your life. Any delay  in your reply will give me room in sourcing =
for a chuch or christian individual for this
same purpose. Please assure me that you will act accordingly as I stated =
herein.  Hoping to hearing from you. N.B-PLEASE I WILL ADVICE YOU TO CONTACT =
THE LAWYER IN CHARGE IN HOLLAND IMMEDIATELY, HE DOES EVERYTHING ON MY BEHALF =
AND HE'S VERY UNDERSTANDING AND I BELIEVE HE WILL LEAD YOU TO YOUR SUCCESS IN =
JESUS 
NAME:      Medube Ben Smith
TELL:      00 31645840763
Remain blessed in the name of the Lord.
Yours in Christ,
Mrs Serena Jones  
  
--a89123a9-f350-4162-bae6-63d70769bc3e--



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On Thu, 20 Nov 2003, Matthew Wilcox wrote:

> > PS: Building network scheduling (QoS) as modules results in unresolved
> >     symbols (using 2.4.22-pa13). Building then in the kernel (2.4.22-pa17)
> >     works.
>
> ... which symbols?

I compiled -pa17 with the same config as -pa13, and the unresolved symbols
in combination of QoS are gone now (of which there were many).

However I have another one here (albeit unrelated to QoS, but IPv6 netfilter):

root@beast:~# depmod -a
depmod: *** Unresolved symbols in
/lib/modules/2.4.22-pa17/kernel/net/ipv6/netfilter/ip6_queue.o
depmod:         ip6_route_me_harder



Slan,
  Max


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On Thu, Nov 20, 2003 at 07:24:49PM +0000, M. Grabert wrote:
> On Thu, 20 Nov 2003, Matthew Wilcox wrote:
> 
> > > PS: Building network scheduling (QoS) as modules results in unresolved
> > >     symbols (using 2.4.22-pa13). Building then in the kernel (2.4.22-pa17)
> > >     works.
> >
> > ... which symbols?
> 
> I compiled -pa17 with the same config as -pa13, and the unresolved symbols
> in combination of QoS are gone now (of which there were many).
> 
> However I have another one here (albeit unrelated to QoS, but IPv6 netfilter):
> 
> root@beast:~# depmod -a
> depmod: *** Unresolved symbols in
> /lib/modules/2.4.22-pa17/kernel/net/ipv6/netfilter/ip6_queue.o
> depmod:         ip6_route_me_harder

How strange.

$ find -type f |xargs grep ip6_route_me_harder
./include/net/ip6_route.h:extern int                    ip6_route_me_harder(struct sk_buff *skb);
./net/netsyms.c:EXPORT_SYMBOL(ip6_route_me_harder);

Are you sure the kernel you are currently running was compiled with
CONFIG_NETFILTER and CONFIG_IPV6 turned on?

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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--0..DC8451F_7FB5DFE_C._D
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--0..DC8451F_7FB5DFE_C._D--



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Subject: [parisc-linux] FINANCIAL Independence Is Calling You...Jean
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On Thu, 20 Nov 2003, Matthew Wilcox wrote:

> > However I have another one here (albeit unrelated to QoS, but IPv6 netfilter):
> >
> > root@beast:~# depmod -a
> > depmod: *** Unresolved symbols in
> > /lib/modules/2.4.22-pa17/kernel/net/ipv6/netfilter/ip6_queue.o
> > depmod:         ip6_route_me_harder
>
> How strange.
>
> $ find -type f |xargs grep ip6_route_me_harder
> ./include/net/ip6_route.h:extern int                    ip6_route_me_harder(struct sk_buff *skb);
> ./net/netsyms.c:EXPORT_SYMBOL(ip6_route_me_harder);
>
> Are you sure the kernel you are currently running was compiled with
> CONFIG_NETFILTER and CONFIG_IPV6 turned on?

Definitely.


xam@sal:~$ ping6 -c3 beast.ipv6.damnyou.org
PING beast.ipv6.damnyou.org(beast.ipv6.damnyou.org) 56 data bytes
64 bytes from beast.ipv6.damnyou.org: icmp_seq=1 ttl=63 time=60.1 ms
64 bytes from beast.ipv6.damnyou.org: icmp_seq=2 ttl=63 time=39.0 ms
64 bytes from beast.ipv6.damnyou.org: icmp_seq=3 ttl=63 time=39.6 ms

--- beast.ipv6.damnyou.org ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2018ms
rtt min/avg/max/mdev = 39.076/46.302/60.183/9.819 ms


(beast.ipv6.damnyou.org is the parisc box running 2.4.22-pa17)
Proof that IPv6 netfilter is working:


root@beast:/home/xam# ip6tables -L FORWARD
Chain FORWARD (policy DROP)
target     prot opt source               destination
DROP       udp      anywhere             anywhere           multiport
dports 135,1025
DROP       tcp      anywhere             anywhere           multiport
dports 135,1025
[...]


and it works as expected ...


greetings, Max


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On Thu, Nov 20, 2003 at 06:50:49PM +0100, CrazyCat from CPF wrote:
> Well, I'm using liveimage to start and install by lan, so I'm not sure of

I'll assume you mean "LIF image" (aka lifimage).

> the kernel and can't verify yet... must wait monday to verify.

either the name of the lifimage or "uname -a" output is sufficient.

> And I'm practically newbie with debian :(

that's ok. identifying kernel version isn't debian specific.

grant


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In trying to debug a problem with dcopserver not starting,
I tried: 
	strace -f -o /tmp/dcop.out dcopserver

This locked up the system. I could still ping the tg3 LAN (interrupts
are enabled?). But Mouse and keyboard stopped responding.
I TOC'd the system - but forgot to dump PIM on the way up.
Since it's a graphical console, I don't plan on copying down
all the info.  If anyone wants to see that, please let me know
which registers are of interest (IOAQ, gr02, gr26-23 are obvious).

grant


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] [BUG] dcopserver: ICE Connection rejected!
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A few days ago, after an apt-get upgrade, konqueror wouldn't properly
start anymore. Error output is:
grundler@debian:~$ konqueror 
_KDE_IceTransmkdir: Owner of /tmp/.ICE-unix should be set to root
ICE Connection rejected!

DCOPClient::attachInternal. Attach failed Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed
ICE Connection rejected!

DCOPClient::attachInternal. Attach failed Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed
DCOPServer self-test failed.
kdeinit: DCOPServer could not be started, aborting.
kio (KSycoca): WARNING: Found version 40, expecting version 61 or higher.
kio (KSycoca): WARNING: Outdated database found
kio (KSycoca): WARNING: Found version 40, expecting version 61 or higher.
kio (KSycoca): WARNING: Outdated database found
kio (KMimeType): WARNING: KServiceType::offers : servicetype Browser/View not found
kio (KSycoca): WARNING: Found version 40, expecting version 61 or higher.
kio (KSycoca): WARNING: Outdated database found


I tried starting dcopserver by itself and got similar output:
grundler@debian:~$ dcopserver
_KDE_IceTransmkdir: Owner of /tmp/.ICE-unix should be set to root
ICE Connection rejected!

DCOPClient::attachInternal. Attach failed Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed
ICE Connection rejected!

DCOPClient::attachInternal. Attach failed Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed
DCOPServer self-test failed.
grundler@debian:~$ 


Something is wrong with dcopserver and/or how it uses iceauth.
If anyone has ideas on how to track this down besides using
strace, I'm interested. Using strace w/o the "-f" didn't help me
and w/-f it hung the kernel.

grant


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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] [BUG] dcopserver: ICE Connection rejected!
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On Thu, Nov 20, 2003 at 05:58:38PM -0700, Grant Grundler wrote:
> A few days ago, after an apt-get upgrade, konqueror wouldn't properly
> start anymore. Error output is:
> grundler@debian:~$ konqueror 
> _KDE_IceTransmkdir: Owner of /tmp/.ICE-unix should be set to root
> ICE Connection rejected!

The obvious question ... what're the ownership/permissions on
your /tmp/.ICE-unix?  Mine are:

drwxrwxrwt    2 root     root         4096 Nov  9 18:24 .ICE-unix

Inside it, I have:

srwxrwxrwx    1 willy    willy           0 Nov  9 18:24 578

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: RE: [parisc-linux] strace locks up 2.4.22-pa14
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Hi Grant,

I am tring to track a lpr pb on my b2k and so try:
# strace -f /usr/bin/lpr foo.doc

that works;

I read your post and try so now:
# strace -f -o /var/tmp/Strace.doc /usr/bin/lpr foo.doc

and system also hang (same behaviour as) and so I toc it (which seems to
failled ; apparently because of ide-cdrom???)

I took the opportunity to unplug ide-cable's cdrom (to test various).

Then to try to obtain a relevant toc, I re-launch:
# strace -f -o /var/tmp/Strace.doc /usr/bin/lpr foo.doc

This time it works??
Is it the same for you after the reboot?
(sorry, I tried severall time strace but no more means to reproduce)

J.

PS: btw the end of my strace is:
[...]
24801 write(3, "\1lp\n", 4)             = 4
24801 read(3, "\0", 1)                  = 1
24801 close(3)                          = 0
24801 SYS_222(0, 0, 0x1, 0x2f, 0)       = -1 ENOSYS (Function not implemented)
24801 exit(0)                           = ?

And at the same time, at the serial console I got:
+ set -v
+ exec

Have you any advise about what I miss?
>-- Original Message --
>From: Grant Grundler <grundler@parisc-linux.org>
>To: parisc-linux@lists.parisc-linux.org
>Date: Thu, 20 Nov 2003 17:50:03 -0700
>Subject: [parisc-linux] strace locks up 2.4.22-pa14
>
>
>
In trying to debug a problem with dcopserver not starting,
I tried: 
	strace -f -o /tmp/dcop.out dcopserver

This locked up the system. I could still ping the tg3 LAN (interrupts
are enabled?). But Mouse and keyboard stopped responding.
I TOC'd
>the system - but forgot to dump PIM on the way up.
Since it's a graphical console, I don't plan on copying down
all the info.  If anyone wants to see that, please let me know
which registers are of interest (IOAQ, gr02, gr26-23 are obvious).

gran
>
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parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: [parisc-linux] Re: HP9000-K460,K420,Dx70/2
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Please don't send me personal mail about installation problems; others
are equally capable of answering these questions and they may respond
when I can't.

On Fri, Nov 21, 2003 at 08:20:42AM +0100, Paczk Andrs wrote:
> My company have three HP9000, a K460, a K420, a Dx70/2.
> I have to install Linux (or *BSD) on this machine.
> I probe on K460,K420 becuse the Dx have a fan problem.

As far as I know, BSD does not support the K class.

> I download the debianhppa_NONUS.iso-t and the latest (PA-13) netinst iso from 
> pateam.
> 
> I got an idea: "You need a boot param, if your box have an ncr53c8xx, 
> ncr53c8xx=burst:3..."
> 
> My boxes have ncr53c710, a tried it, but not works, (burst:1..2..3)

That's obsolete advice; the problem was fixed in 2.4.16-pa14.

> the boot fail:
> 
> serial .... with MANY PORTS....
> bla bla
> 
> dump....
> 
> Is anyone who are able to install linux these boxes?

Yes, I and others have successfully installed Linux on these boxes.  It
sounds like you need to interact with IPL and change console=ttyS0 to
console=ttyB0, but you haven't provided enough information for me to
be certain.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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On Fri, Nov 21, 2003 at 02:43:39AM +0000, Matthew Wilcox wrote:
> The obvious question ... what're the ownership/permissions on
> your /tmp/.ICE-unix?  Mine are:
> 
> drwxrwxrwt    2 root     root         4096 Nov  9 18:24 .ICE-unix

I have tried "chown root /tmp/.ICE-unix" but the default appears
to be:
grundler@debian:~$ ls -ld /tmp/.ICE-unix/
drwxrwxrwx    2 grundler grundler     4096 Nov 20 17:42 /tmp/.ICE-unix//

I set the ownership/permissions to match yours still get the same
error messages back (sans error about ownership).

root@debian:~# ls -ld /tmp/.ICE-unix/
drwxrwxrwt    2 root     root         4096 Nov 20 17:42 /tmp/.ICE-unix/

> Inside it, I have:
> 
> srwxrwxrwx    1 willy    willy           0 Nov  9 18:24 578

ok. I'll at least know when I have it working.

thanks,
grant


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                                                                                                      EL-GORDO LOTTERY SPANISH SWEEPSTAKE CO. S.L.  REG N B28899434



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On Fri, Nov 21, 2003 at 02:43:39AM +0000, Matthew Wilcox wrote:
> The obvious question ... what're the ownership/permissions on
> your /tmp/.ICE-unix?  Mine are:
> 
> drwxrwxrwt    2 root     root         4096 Nov  9 18:24 .ICE-unix

I checked the ownership/perms on my other c3k that's not been updated
for a while and wne@ by grundler/grundler. Konqueror runs
fine on this box...here are versions on the working box:

Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  konqueror      2.2.2-14       KDE's advanced File Manager, Web Browser and
ii  xbase-clients  4.2.1-12.1     miscellaneous X clients

and on the failing systems I pulled in stuff from
unstable to see if it would resolve the issue (it didn't):
+++-==============-==============-============================================
ii  konqueror      3.1.3-1        KDE's advanced File Manager, Web Browser and
ii  xbase-clients  4.2.1-14       miscellaneous X clients

I suspect some other common component is involved.

grant


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Subject: Re: [parisc-linux] Boot-up challenges on a 715/75
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Hello Max,

M. Grabert wrote:
> On Wed, 19 Nov 2003, Steve Bromwich wrote:
> 
> 
>>On Tue, 18 Nov 2003, Grant Grundler wrote:
>>
>>
>>>On Tue, Nov 18, 2003 at 08:38:00PM -0400, Steve Bromwich wrote:
>>>
>>>>I believe HP machines use a 512 byte sector CD drives (with the standard
>>>>being 2048 byte). I'm not sure off-hand if the TEAC supports 512 byte
>>>>sectors. Your best bet may be to borrow a CD off a Sun machine, if you
>>>>have access to one.
>>>
>>>I'm only aware of HP using 2k sectors for CD-RO.
>>
>>Well, this is just from my own personal experience on a 715/75 (which has
>>now sadly bitten the dust). A google around would tend to support this
>>theory, for example:
>>
>>http://lists.parisc-linux.org/pipermail/parisc-linux/2000-September/009345.html
>>"Last posting to the list was about my SCSI CD-ROM not booting the
>>HP-UX INSTALL CD.  Well, it turns out that NECs are in 2048 byte sector
>>mode whereas HP requires 512 byte mode.  SUNs and SGIs also require 512
>>byte sector mode.  So I just borrowed a SUN external CD-ROM..."
>>
>>
>>>I've never heard of 512 byte sectors in a CD Drive.
>>>Is that a feature unique to CD-RW?
>>
>>It's the standard for Sun boxes (at least, on all my Sparcstations). This
>>of course means I don't have any SCSI 2048 byte CD drives to verify my
>>statement! If anyone else would like to verify it I'd be interested, and I
>>suppose it might not be a bad idea to add it to the FAQ if true as I'm
>>sure it'll bite someone else down the road.
> 
> 
> I have several risc boxes (SGI O2, Alpha AS500, Dec 5000, Sun SS20s and HPs),
> all of them use 512bytes/sector. I'm actually not aware of any non-intel
> platform that uses 2048bytes/sector for SCSI CD-drives.
> 
hmm excepted HP (trust me, when I build a custom cd with Ignite to 
upgrade our ws (about 80 of various model: 712, b132, b180 & c110) from 
10.01 to 10.20, I have to take care of this detail to build the basic fs)

> I once ran into the problem that I couldn't boot from CD using an old Sun
> SPARCstationLX, since the SCSI CD-drive was set to 2048bytes/sector.
> 
> Most SCSI-CD drives have a switch/jumper to select the default
> bytes/sector (ie. 512 or 2048). Most 'newer' drives support to be switched
> to either mode via software. 'Newer' meaning less than 8 years old.
> 
> However old workstations (like the old SPARCstation I presume) don't
> support to switch the SCSI-CD-drive to the 512 mode, so you HAVE to set
> the jumper on the back of the drive.
> 
> I doubt you'll find any SCSI CD-drives on the market (second hand or new)
> that are so old that they support only one of these modes. I bought a
> TEAC CD-writer and a Pioneer CD-drive in a ordinary PC shop about 6 years
> ago, and they support both modes (and I even couldn't find any that couldn't).
> They work with all SCSI machines I have.
> 
> 
Thanks for those all info (well I don't have to manage a so wide range 
of ws supplier) but I ignored this before ;)

Joel



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Subject: Re: [parisc-linux] Boot-up challenges on a 715/75
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To all who took the time to reply, thank you
Progress to date:
1. Set jumper to 512 k sector on the TEAC.  715/75 recognized it as a 
different model.
2. It spun the disk upon issuing the "bo P2" command, however, i still got 
the
ENTRY_INIT =-4 message

I will try to do a net boot next

if that fails, I will try to copy onto the boot 715/75 hard drive the 
necessary files.  Which leads me to my next question, which files(s) would be 
necessary for the 715/75 to boot

Would "lifimage" be enough or should i place "rescue.bin", "linux.bin" and 
"drivers.gz" on the hard drive

Thanks in advance for your remarkable response.

jack dunn

--part1_171.26ba943e.2cefd34e_boundary
Content-Type: text/html; charset="US-ASCII"
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<HTML><FONT FACE=3Darial,helvetica><FONT  SIZE=3D2 FAMILY=3D"SANSSERIF" FACE=
=3D"Arial" LANG=3D"0">To all who took the time to reply, thank you<BR>
Progress to date:<BR>
1. Set jumper to 512 k sector on the TEAC.&nbsp; 715/75 recognized it as a d=
ifferent model.<BR>
2. It spun the disk upon issuing the "bo P2" command, however, i still got t=
he<BR>
ENTRY_INIT =3D-4 message<BR>
<BR>
I will try to do a net boot next<BR>
<BR>
if that fails, I will try to copy onto the boot 715/75 hard drive the necess=
ary files.&nbsp; Which leads me to my next question, which files(s) would be=
 necessary for the 715/75 to boot<BR>
<BR>
Would "lifimage" be enough or should i place "rescue.bin", "linux.bin" and "=
drivers.gz" on the hard drive<BR>
<BR>
Thanks in advance for your remarkable response.<BR>
<BR>
jack dunn</FONT></HTML>

--part1_171.26ba943e.2cefd34e_boundary--


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Xref: news.gmane.org gmane.linux.ports.parisc:20169

Hi Steve,

Steve Bromwich wrote:
>>>Just to clarify, this is happening during operation, not bootup. Next time
>>>it happens (probably tomorrow morning) I'll break on serial and try
>>>piminfo
> 
> 
> So much for that idea - I forgot I had magic sysrq on, so break just gave
> me the usual sysrq options. I'll recompile without sysrq over the weekend
> and see what happens, but in the meantime I've reverted to 2.4.18 to see
> if I get the same problem, just to make sure it's not faulty hardware. I
> checked ps, and all the processes in D state were ones that touch the
> drive (eg, find, exim, apache).
> 
> I've got a J class at work that's not in production, so if I get time I'll
> try it out with the same config (or at least, the closest I can get) just
> to make sure it's not something obviously wonky in my config.
> 
well, but those system are widly different (cpu, architecture, ...).
> 
>>May be if you can, run hp diag tools?
> 
> 
> I don't have a CD in that machine - do you know if there's any netbootable
> images I can use? I have an HPUX 11.0 CD set, so if there's something I
> can pull off there I'll be good to go.
> 
Good question? never have to test it but it is a bootable cd (I don't 
remember if it is available via internet?) so if you copy it's image 
(with dd) on a system, i think that following the faq how-to netboot 
<http://parisc-linux.org/faq/index.html#netboot> , it would works?
> 
>>(I have no clue about 715 model but well running 2.4.22 (and above) on various
>>b180, b2k, c110, N4000 and i have never encounter such pb?)
> 
> 
> Well, the frustrating thing is is that there's no debug output anywhere
> that I can find that's showing anything obviously wrong.
Don't feel alone, during severall month (2, 3, 4, ... I don't want to 
remember) I try to get just a panic message from a smp kernel on a N4k 
: no success :_(
...

> I had a skim
> through lasi700.c/.h and couldn't see anything that'd help, do you know if
> there's any debug/printks I can scatter anywhere to give me some pointers?
>
Sorry, I couldn't help here.

hmm, what kind of disk have you on your D: hot-swapable or fixed?
(with fixed disk, I already encounter a pb of flat cable and with 
hot-swap disk a pb with dust on disks' support)

Cheers,
	Joel



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Subject: Re: [parisc-linux] C110 builtin nic slow?
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To: Joel Soete <soete.joel@tiscali.be>
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Xref: news.gmane.org gmane.linux.ports.parisc:20170

Hi all,


Joel Soete wrote:
> 
> 
> M. Grabert wrote:
> 
>> Sorry to reply myself,
> 
this is me now ;)

A small follow-up: I exchange my 3com with another hp nic (the same as 
the first one).

The pb now, is that the new one become eth0 (and works fine) but the old 
one (which would be eth1) is not any-more usable (no means to configure 
to setup and configure it):
# cat /proc/pci
[...]
   Bus  0, device  11, function  0:
     Ethernet controller: Hewlett-Packard Company J2585B HP 10/100VG PCI 
LAN Ada
ter (rev 0).
       IRQ 9.
       Master Capable.  Latency=64.  Min Gnt=8.Max Lat=32.
       I/O at 0xe000 [0xe0ff].
       Non-prefetchable 32 bit memory at 0xeb000000 [0xeb001fff].
   Bus  0, device  12, function  0:
     Ethernet controller: Hewlett-Packard Company J2585B HP 10/100VG PCI 
LAN Ada
ter (#2) (rev 0).
       IRQ 10.
       Master Capable.  Latency=64.  Min Gnt=8.Max Lat=32.
       I/O at 0xe400 [0xe4ff].
       Non-prefetchable 32 bit memory at 0xeb002000 [0xeb003fff].
[...]

Any idea?

Thanks again,
	Joel



From - Thu Nov 08 21:30:03 2018
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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] C110 builtin nic slow?
Date: Fri, 21 Nov 2003 22:37:26 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:20171

Hi all,

Joel Soete wrote:
> Hi all,
> 
> 
> Joel Soete wrote:
> 
>>
>>
>> M. Grabert wrote:
>>
>>> Sorry to reply myself,
>>
>>
> this is me now ;)
Again, apologies

> 
> A small follow-up: I exchange my 3com with another hp nic (the same as 
> the first one).
> 
> The pb now, is that the new one become eth0 (and works fine) but the old 
> one (which would be eth1) is not any-more usable (no means to configure 
> to setup and configure it):
> # cat /proc/pci
> [...]
>   Bus  0, device  11, function  0:
>     Ethernet controller: Hewlett-Packard Company J2585B HP 10/100VG PCI 
> LAN Ada
> ter (rev 0).
>       IRQ 9.
>       Master Capable.  Latency=64.  Min Gnt=8.Max Lat=32.
>       I/O at 0xe000 [0xe0ff].
>       Non-prefetchable 32 bit memory at 0xeb000000 [0xeb001fff].
>   Bus  0, device  12, function  0:
>     Ethernet controller: Hewlett-Packard Company J2585B HP 10/100VG PCI 
> LAN Ada
> ter (#2) (rev 0).
>       IRQ 10.
>       Master Capable.  Latency=64.  Min Gnt=8.Max Lat=32.
>       I/O at 0xe400 [0xe4ff].
>       Non-prefetchable 32 bit memory at 0xeb002000 [0xeb003fff].
> [...]
> 
> Any idea?
> 
I found: ether=9,0,eth0 ether=10,0,eth1 as additional bootparam.

It works but I am confused:
at the office I also have two nic (well of tulip model) on my b2k but I 
never have to add any bootparam to make recognise the second card?
Is it linked with the model capability?

Thanks,
	Joel

PS:  ft problem seems to be solved :)
hmm this 3com works perfectly with 10BT-hd at the office but connected 
this time to a hub (10BT capable) :0



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Subject: [parisc-linux] STOP-PAYING For Your PAY-PER-VIEW, Movie Channels, Mature Channels...iniko
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From: "Osvaldo Luiz Loose" <osvaldoloose@pop.com.br>
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Subject: [parisc-linux] 93C46 reading via RS-232 port - Please Help me
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Hello Paul 

I need a peace of code in ANSI C (Linux), to read data from an
EEPROM 93C46, connected to the RS232 port of an IBM-PC. (Only
read). I found some code for PIC and 8051 but not for IBM-PC.
Can You help me please ? Thank You very much, 

osvaldoloose@pop.com.br 

 

-- 
POP. Nem parece internet grtis. 

Seja POP voc tambm!
Acesse: http://www.pop.com.br/discador.html e baixe o POPdiscador.


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  ekwhgc nwdh xi p  kosuf rdhajv

--F2_C82.0A3907_3C.D87468--



From - Thu Nov 08 21:30:03 2018
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Subject: Re: [parisc-linux] Processes stuck in D state on 715/100XC with
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To: Joel Soete <soete.joel@tiscali.be>
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Hi Joel,

On Fri, 21 Nov 2003, Joel Soete wrote:

> Hi Steve,
>
> Steve Bromwich wrote:
> >
> > I've got a J class at work that's not in production...

> well, but those system are widly different (cpu, architecture, ...).

Well, my plan was something like this:

1. Install Linux on the J200, replicate my 715, and then compile the
kernel as closely as possible to how it is in the 715. Run the J200 like
that for a day or two and see if I can duplicate the problem. If so, diag
further on there.

2. If the problem does not appear on the J200, resync with the 715 and put
the J200 in place of the 715 while I tinker with the 715 to nail down the
problem. Then I should be able to regress through the kernels from cvs
until I find the one where it stopped working, and hopefully I should be
able to find a resolution from there.

Unfortunately, I was caught out right at the start - after lugging all 60
kilos of it home and downstairs into my basement server room, I discovered
that someone had borrowed the drives out of it, so I'll have to bring home
an enclosure next week to continue my testing.

In the meantime, I tried a net install which ultimately failed trying to
extract debs to the nfs root (which, incidentally, took about 5 minutes to
mount - is this to be expected on the install disks? It usually only takes
a couple of seconds for my 715 to mount an nfs partition off my
workstation). Unfortunately I was on serial console so couldn't get much
in the way of diags, I'll have to move a monitor into my server room to
hook up to it (the J200 doesn't like my 15" SVGA test monitor,
unfortunately).

> Good question? never have to test it but it is a bootable cd (I don't
> remember if it is available via internet?) so if you copy it's image
> (with dd) on a system, i think that following the faq how-to netboot
> <http://parisc-linux.org/faq/index.html#netboot> , it would works?

Hmmm... you mean like dd if=/dev/scd0 of=lifimage.testing? I guess that'll
be my next try :-)

> > Well, the frustrating thing is is that there's no debug output anywhere
> > that I can find that's showing anything obviously wrong.
> Don't feel alone, during severall month (2, 3, 4, ... I don't want to
> remember) I try to get just a panic message from a smp kernel on a N4k
> : no success :_(

Ah well... misery loves company, I guess! :-)

> hmm, what kind of disk have you on your D: hot-swapable or fixed?
> (with fixed disk, I already encounter a pb of flat cable and with
> hot-swap disk a pb with dust on disks' support)

Fixed. I don't *think* it's a problem with the cable, since (a) I reseated
all the cables after the first couple of times it died, and (b) after the
last time it reset, I rebooted back to 2.4.18 to make sure it wasn't a
flat-out hardware error (as opposed to possibly a hardware bug being
tickled by 2.4.22).

Thanks for the help :-)

Cheers, Steve


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Subject: Re: [parisc-linux] Boot-up challenges on a 715/75
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On Fri, Nov 21, 2003 at 03:45:02PM -0500, JjDunnjr@aol.com wrote:
> To all who took the time to reply, thank you
> Progress to date:
> 1. Set jumper to 512 k sector on the TEAC.  715/75 recognized it as a 
> different model.

very good - I'm amazed I hadn't heard about the 512 vs 2k sectors before.
But it's been 8 years since I seriously poked at SCSI devices.

> 2. It spun the disk upon issuing the "bo P2" command, however, i still got 
> the
> ENTRY_INIT =-4 message

The PA I/O Architecture Control Document (aka IO ACD) describes the 
ENTRY_INIT returns codes. See "Documentation" on www.parisc-linux.org.

> I will try to do a net boot next
> 
> if that fails, I will try to copy onto the boot 715/75 hard drive the 
> necessary files.  Which leads me to my next question, which files(s) would be 
> necessary for the 715/75 to boot
> 
> Would "lifimage" be enough or should i place "rescue.bin", "linux.bin" and 
> "drivers.gz" on the hard drive

Only the lifimage.
You will need two hard disks.
dd the lifimage you get from ftp.parisc-linux.org onto one harddisk and
 then boot the parisc machine from that disk. Install on the other disk.

It would be useful to check (via the "execute a shell" option) if the CD
is readable by the OS. If so, it can be used as an install source.
It's possible the CD is still readable but not bootable because
the CD burning SW used might have mangled the .ISO data.

hth,
grant


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On Fri, Nov 21, 2003 at 01:39:49PM +0100, Joel Soete wrote:
> Hi Grant,
> 
> I am tring to track a lpr pb on my b2k and so try:
> # strace -f /usr/bin/lpr foo.doc
> 
> that works;

ok

> I read your post and try so now:
> # strace -f -o /var/tmp/Strace.doc /usr/bin/lpr foo.doc
> 
> and system also hang (same behaviour as)
> and so I toc it (which seems to failled ; apparently because of ide-cdrom???)

hrm. I doubt the ide-cdrom is causing the TOC to fail. 
It's likely the CD-ROM drive is getting reset when TOC occurs
and that's the noise you hear.
Something else might be causing problems.

> I took the opportunity to unplug ide-cable's cdrom (to test various).
> 
> Then to try to obtain a relevant toc, I re-launch:
> # strace -f -o /var/tmp/Strace.doc /usr/bin/lpr foo.doc
> 
> This time it works??
> Is it the same for you after the reboot?

I haven't retried because I need that to actaully work on that system.
I'm building a new kernel and will try at home tonight.


> (sorry, I tried severall time strace but no more means to reproduce)

bummer. Makes me wonder if this is CPU cache related too. 

> PS: btw the end of my strace is:
> [...]
> 24801 write(3, "\1lp\n", 4)             = 4
> 24801 read(3, "\0", 1)                  = 1
> 24801 close(3)                          = 0
> 24801 SYS_222(0, 0, 0x1, 0x2f, 0)       = -1 ENOSYS (Function not implemented)
> 24801 exit(0)                           = ?
> 
> And at the same time, at the serial console I got:
> + set -v
> + exec
> 
> Have you any advise about what I miss?

include/asm/unistd.h says:
#define __NR_exit_group         (__NR_Linux + 222)

No architecture implements that syscall.
("find -name '*.[S]' | xargs fgrep exit_group")
I have no clue what it's supposed to do and looks like
I don't need to care either.

Perhaps just recompiling the application or linked lib that uses
that syscall might get rid of it.

grant


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On Fri, Nov 21, 2003 at 09:57:31PM -0700, Grant Grundler wrote:
> > 2. It spun the disk upon issuing the "bo P2" command, however, i still got 
> > the
> > ENTRY_INIT =-4 message
> 
> The PA I/O Architecture Control Document (aka IO ACD) describes the 
> ENTRY_INIT returns codes. See "Documentation" on www.parisc-linux.org.

sorry - it's called "iodc.pdf" on
	http://www.parisc-linux.org/documentation/index.html

-4	Unrecoverable hardware error
	A hardware error on the module or device prevented the call
	from completing correctly.
	CONDITIONAL. Must be used if hardware errors are isolated.

Sounds like either a problem with the CD or the CD-ROM drive.

grant


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Grant Grundler wrote:
> On Fri, Nov 21, 2003 at 01:39:49PM +0100, Joel Soete wrote:
> 
>>Hi Grant,
>>
>>I am tring to track a lpr pb on my b2k and so try:
>># strace -f /usr/bin/lpr foo.doc
>>
>>that works;
> 
> 
> ok
> 
> 
>>I read your post and try so now:
>># strace -f -o /var/tmp/Strace.doc /usr/bin/lpr foo.doc
>>
>>and system also hang (same behaviour as)
>>and so I toc it (which seems to failled ; apparently because of ide-cdrom???)
> 
> 
> hrm. I doubt the ide-cdrom is causing the TOC to fail. 

I don't know but seems to hang like boot hang when I include the pdc 
support into the kernel: green led stay lightning. (and toc seems to 
failed because of a time out IO; i don't remember but I think i do have 
to read it on lcd)

> It's likely the CD-ROM drive is getting reset when TOC occurs
> and that's the noise you hear.
> Something else might be causing problems.
> 
Well, I don't realy need that system hang to toc it? (just think right now)
So when I have some time, I will re-try a toc when system is running and 
see what hapen ;)
> 
>>I took the opportunity to unplug ide-cable's cdrom (to test various).
>>
>>Then to try to obtain a relevant toc, I re-launch:
>># strace -f -o /var/tmp/Strace.doc /usr/bin/lpr foo.doc
>>
>>This time it works??
>>Is it the same for you after the reboot?
> 
> 
> I haven't retried because I need that to actaully work on that system.
> I'm building a new kernel and will try at home tonight.
> 
Ok
> 
> 
>>(sorry, I tried severall time strace but no more means to reproduce)
> 
> 
> bummer. Makes me wonder if this is CPU cache related too. 
> 
I am curious to see the result of your test ?)
> 
>>PS: btw the end of my strace is:
>>[...]
>>24801 write(3, "\1lp\n", 4)             = 4
>>24801 read(3, "\0", 1)                  = 1
>>24801 close(3)                          = 0
>>24801 SYS_222(0, 0, 0x1, 0x2f, 0)       = -1 ENOSYS (Function not implemented)
>>24801 exit(0)                           = ?
>>
>>And at the same time, at the serial console I got:
>>+ set -v
>>+ exec
>>
>>Have you any advise about what I miss?
> 
> 
> include/asm/unistd.h says:
> #define __NR_exit_group         (__NR_Linux + 222)
> 
> No architecture implements that syscall.
> ("find -name '*.[S]' | xargs fgrep exit_group")
> I have no clue what it's supposed to do and looks like
> I don't need to care either.
> 
> Perhaps just recompiling the application or linked lib that uses
> that syscall might get rid of it.
> 
Good idea, I will try.

what I don't understand is that lpr works fine on my b180 runing a 
k-2.4.21 (for lvm2 support) otc the b2k is running a k-2.4.23-rc2-pa7 (a 
merge of mine); so my doubt is that I could break something :(.

Thanks for advise,
	Joel


> grant
> 



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On Sat, Nov 22, 2003 at 11:58:29AM +0000, Joel Soete wrote:
> I don't know but seems to hang like boot hang when I include the pdc 
> support into the kernel: green led stay lightning. (and toc seems to 
> failed because of a time out IO; i don't remember but I think i do have 
> to read it on lcd)

What do you mean by "PDC support"?
You mean CONFIG_PDC_CHASSIS?
AFAIK, this only enables chassis codes to be displayed on either
the "front panel" LCD or LEDs.

It looks like my box HPMCs after the TOC. The TOC performs
a reset and then seltests run. Then next thing on the LCD
display is "OS HPMC" even though the gfx card hasn't been
initialized yet.

> Well, I don't realy need that system hang to toc it?

Right. TOC is just convenient to use when the system is hung.

> So when I have some time, I will re-try a toc when system is running and 
> see what hapen ;)

You'll get state info about cpu_idle() or whatever it happens to
be doing.

> >bummer. Makes me wonder if this is CPU cache related too. 
> I am curious to see the result of your test ?)

2.4.22-pa17 on c3k, "strace -f -o /tmp/dcop.out dcopserver" hung at home. 

GR02 0x10389567	
20-23	0x32  0x0e 0x10 0x00
24-27   0x00  0x10 0xcc 0x102d2010

CR0-3 0x00 0x1822 0x00 0x1824

IOAQ 0x102a1188	number+170
CPU State 0x9e000001

Looks like the PIM dump is garbage. (gr02 is not a kernel address)
I've cleared the PIM and will retry later...gotta run.


> what I don't understand is that lpr works fine on my b180 runing a 
> k-2.4.21 (for lvm2 support) otc the b2k is running a k-2.4.23-rc2-pa7 (a 
> merge of mine); so my doubt is that I could break something :(.

Is this via parallel port or network printer?
If network, then I would guess your merge (or the 2.4.23-rc2 base) has a bug.
If parallel port, likely a bug in suckyio support for parallel port.

But it's not exactly "apples to apples" comparison since the IO subsystem
between B180 and B2k is completely different.

grant


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Grant Grundler wrote:
> On Sat, Nov 22, 2003 at 11:58:29AM +0000, Joel Soete wrote:
> 
>>I don't know but seems to hang like boot hang when I include the pdc 
>>support into the kernel: green led stay lightning. (and toc seems to 
>>failed because of a time out IO; i don't remember but I think i do have 
>>to read it on lcd)
> 
> 
> What do you mean by "PDC support"?
> You mean CONFIG_PDC_CHASSIS?

Sorry I will have to check ((not the box near hand :( )

> AFAIK, this only enables chassis codes to be displayed on either
> the "front panel" LCD or LEDs.
> 
> It looks like my box HPMCs after the TOC.
Yes

> The TOC performs
> a reset
Yes (i trust ;) )
> and then seltests run.
Never for me, stay lock with ide-cdrom led lightning

> Then next thing on the LCD
> display is "OS HPMC"

Yes and on the half botum part are wraping some additional text

> even though the gfx card hasn't been
> initialized yet.
> 
I don't select sti support (builtin gfx not supported on b2k)
> 
>>Well, I don't realy need that system hang to toc it?
> 
> 
> Right. TOC is just convenient to use when the system is hung.
> 
> 
>>So when I have some time, I will re-try a toc when system is running and 
>>see what hapen ;)
> 
> 
> You'll get state info about cpu_idle() or whatever it happens to
> be doing.
> 
> 
>>>bummer. Makes me wonder if this is CPU cache related too. 
>>
>>I am curious to see the result of your test ?)
> 
> 
> 2.4.22-pa17 on c3k, "strace -f -o /tmp/dcop.out dcopserver" hung at home. 
> 
hmm b2k and c3k are very brother system in term of architecture and 
components? May I ask you the amount of ram stand in your c3k? (on my 
b2k only 256k).

> GR02 0x10389567	
> 20-23	0x32  0x0e 0x10 0x00
> 24-27   0x00  0x10 0xcc 0x102d2010
> 
> CR0-3 0x00 0x1822 0x00 0x1824
> 
> IOAQ 0x102a1188	number+170
> CPU State 0x9e000001
> 
> Looks like the PIM dump is garbage. (gr02 is not a kernel address)
> I've cleared the PIM and will retry later...gotta run.
> 
hmm the same when I tried to analyse hpmc gr02=0x00000150?

> 
> 
>>what I don't understand is that lpr works fine on my b180 runing a 
>>k-2.4.21 (for lvm2 support) otc the b2k is running a k-2.4.23-rc2-pa7 (a 
>>merge of mine); so my doubt is that I could break something :(.
> 
> 
> Is this via parallel port or network printer?
Sorry, via network (hp lazerjet 4mv)

> If network, then I would guess your merge (or the 2.4.23-rc2 base) has a bug.

Certainly :( [but where, the rest ftp, rsync, nfs-client, gtk-app, ... 
work fine and no special messages neither into kernel, messages or 
syslog?]. Well don't care now, it is just a beat anoying to printout my 
scripts.

> If parallel port, likely a bug in suckyio support for parallel port.
> 
> But it's not exactly "apples to apples" comparison since the IO subsystem
> between B180 and B2k is completely different.
> 
agree

Thanks,
	Joel

> grant
> 



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Grant Grundler wrote:
> On Sat, Nov 22, 2003 at 11:58:29AM +0000, Joel Soete wrote:
> 
>>I don't know but seems to hang like boot hang when I include the pdc 
>>support into the kernel: green led stay lightning. (and toc seems to 
>>failed because of a time out IO; i don't remember but I think i do have 
>>to read it on lcd)
> 
> 
> What do you mean by "PDC support"?
> You mean CONFIG_PDC_CHASSIS?

Sorry that was in an old mail 
<http://lists.parisc-linux.org/pipermail/parisc-linux/2002-December/018689.html>
and much concern CONFIG_PDC_CONSOLE (via CONFIG_SERIAL_NONSTANDARD=y)


thanks for your attention,
	Joel



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Subject: Re: [parisc-linux] 93C46 reading via RS-232 port - Please Help me
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<http://www.pjrc.com/tech/8051/serial-eeprom.html>

hth,
	Joel

ps: find thanks to google search:"EEPROM 93C46"+linux

Osvaldo Luiz Loose wrote:
> 
> Hello Paul
> I need a peace of code in ANSI C (Linux), to read data from an
> EEPROM 93C46, connected to the RS232 port of an IBM-PC. (Only
> read). I found some code for PIC and 8051 but not for IBM-PC.
> Can You help me please ? Thank You very much,
> osvaldoloose@pop.com.br
> 
> 



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Hi Carlos,

In the hope to rebuild kernel last 2.6(.0-test9-pa6) to test it on the 
b2k and n4k, I try to follow your Build xc howto with new binutils (ie 
2.14.90.0.7-3), glibc (2.3.2.ds1-10) and gcc-3.3 (3.3.2-4) to rebuild 
first 32bit tools.

(Just change a bit the way to apply debian patches in binutils: adopt 
glibc method)

For binutils and partial gcc, all works fine. But for glibc which I try 
to configure as follow:
export PATH=/Sources/parisc-linux/xc/bin:$PATH; \
unset LD_LIBRARY_PATH; unset LD_RUN_PATH; \
export CC=/Sources/parisc-linux/xc/bin/hppa-linux-gcc; \
export CLFAGS="-O2 -g";\
/Sources/parisc-linux/src/glibc/configure --target=hppa-linux \
--host=hppa-linux --prefix=/Sources/parisc-linux/xc/hppa-linux \
--without-cvs --disable-profile --enable-hacker-mode --enable-add-ons \
--with-headers=/Sources/parisc-linux/src/linux/include

failed because:
[...]
checking for long double... yes
checking size of long double... 8
running configure fragment for nptl/sysdeps/pthread
configure: error: compiler support for __thread is required
[...]

What do i wrong?

I try to see how dpkg-buildpackage reconfigure glibc and gcc (respectively):
configure' --prefix=/usr  '--host=hppa-linux' '--build=hppa-linux' \ 
'--prefix=/usr' '--without-cvs' '--enable-add-ons=linuxthreads ' \
'--with-headers=/Develop/parisc-linux/sources/glibc-2.3.2.ds1/debian/include'\
  '--enable-kernel=2.2.0' \
'CPPFLAGS=-isystem \
Develop/parisc-linux/sources/glibc-2.3.2.ds1/debian/include' \
'build_alias=hppa-linux' 'host_alias=hppa-linux' --cache-file=/dev/null\
--srcdir=/Develop/parisc-linux/sources/glibc-2.3.2.ds1/build-tree/glibc-2.3.2/linuxthreads

(for gcc-snapshot!)
../src/configure -v --enable-languages=c,c++,f77,objc,treelang \
--prefix=/usr/lib/gcc-snapshot --enable-shared --with-system-zlib \
--enable-nls --without-included-gettext --enable-__cxa_atexit \
--enable-clocale=gnu \
--enable-libstdcxx-debug --with-cpp-install-dir=bin --disable-werror \
hppa-linux

but I don't see how can I add 'support for __thread' to gcc.

Any idea?

Thanks in advance for attention,
	Joel



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> but I don't see how can I add 'support for __thread' to gcc.

this (nptl) is not yet supported on hppa, we've discussed this several
times but no one yet has time to work on it.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Randolph,

Thanks, I see:

change --enable-add-ons by --enable-add-ons=linuxthreads help to avoid 
to compile nptl.

Sorry to not being of more help (not enough knowledge to start more 
hacking about support __thread) :(

Joel

Randolph Chung wrote:
>>but I don't see how can I add 'support for __thread' to gcc.
> 
> 
> this (nptl) is not yet supported on hppa, we've discussed this several
> times but no one yet has time to work on it.
> 
> randolph



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From: Wolny Olkusz <wolny_olkusz@rediffmail.com>
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Subject: [parisc-linux] IMPORTANT
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Good Day,
With warm heart I offer my friendship, and my greetings,
and I hope this letter meets you in good time. It will
be surprising to you to receive this proposal from me
since you do not know me personally.
However, I am sincerely seeking your confidence in this transaction,
which I propose with my free mind and as a person of integrity.
My name is Wolny Olkusz, the first son of Paul Olkusz,
of the most popular black farmer from Zimbabwe, murdered
in the land dispute in my country. As led by my instict,
I decided to contact you through email, after searching
for contacts via the internet, as it is the only means
I can contact anybody since I am cutting off ties with
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However, I apologize if this is not acceptable to you. The purpose of
this letter is to seek your most needed assistance in a business
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of President Robert Mugabe's introduction of new Land Act Reform wholly
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Before he was murdered, he withdrew all of our business
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establishment of new farms in Europe. President Mugabe's support for the
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I was continually threatened to abandon my inheritance from
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they have moved the deposit from their office in Johannesburg down here.
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Sincerely,

Wolny Olkusz.  
--9f0687b6-594a-470a-a6c3-099239dc9609--



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> Sorry to not being of more help (not enough knowledge to start more 
> hacking about support __thread) :(

This is complicated, and requires an in-depth understanding of GCC
and binutils.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Xref: news.gmane.org gmane.linux.ports.parisc:20190

I trust you; i don't want even check :(.
But somewhere there would have no fun if all was sinply portable ;)

Thanks,
	Joel

John David Anglin wrote:
>>Sorry to not being of more help (not enough knowledge to start more 
>>hacking about support __thread) :(
> 
> 
> This is complicated, and requires an in-depth understanding of GCC
> and binutils.
> 
> Dave



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On Sun, 2003-11-23 14:53:03 -0500, John David Anglin <dave@hiauly1.hia.nrc.=
ca>
wrote in message <200311231953.hANJr4Kj028577@hiauly1.hia.nrc.ca>:
> > Sorry to not being of more help (not enough knowledge to start more=20
> > hacking about support __thread) :(
>=20
> This is complicated, and requires an in-depth understanding of GCC
> and binutils.

I thrust you - bad for me; I'm currently looking at vax-linux, where we
use an quite dated compiler...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
   ret =3D do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TC=
PA));

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> > This is complicated, and requires an in-depth understanding of GCC
> > and binutils.
> 
> I thrust you - bad for me; I'm currently looking at vax-linux, where we
> use an quite dated compiler...

There is one outstanding PR for the vax which causes labels to be deleted
after a case insn.  If this gets fixed, you probably should be able to
switch to GCC 3.4.  I know C builds at -O1.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> I trust you; i don't want even check :(.
> But somewhere there would have no fun if all was sinply portable ;)

It's not portable because the insn sequences for calls vary from
one machine to another.  On the PA, there are several sequences
for calls on the PA.

Probably, after the libffi port is completed and java is working,
we will try to implement the TLS support.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: [parisc-linux] sym-2.1.18i backport?
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Hi Matthew and all,

Did you foreseen to backport your great patch (sym-2.1.18i) to 2.4?
(well some part wouldn't have to be applied (as __init change) but many
stuff would be interesting?)

Is there some interest? faisible?

Thanks for info,
	Joel




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John David Anglin wrote:
>>I trust you; i don't want even check :(.
>>But somewhere there would have no fun if all was sinply portable ;)
> 
> 
> It's not portable because the insn sequences for calls vary from
> one machine to another.  On the PA, there are several sequences
> for calls on the PA.
> 
> Probably, after the libffi port is completed and java is working,
> we will try to implement the TLS support.
> 
Dave,

Just to have an overview, is there another risc platform (sparc, ia64, 
...) on which it is already implemented?

Thanks,
	Joel



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> Just to have an overview, is there another risc platform (sparc, ia64, 
> ...) on which it is already implemented?

Yes, I believe that it is implemented on sparc and ia64.  For further
info, consult

- Prelink on HPPA, requiring some binutils/glibc changes
        = http://freshmeat.net/projects/prelink/?topic_id=253
- NTPL on HPPA, requiring gcc/binutils/glibc changes
	= http://people.redhat.com/drepper/nptl-design.pdf
	= http://people.redhat.com/drepper/tls.pdf

There was some discussion of this on the list back in January.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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װѣĹǷԾӴϢڵĹ˾Ƿо޴ĺĲЩߵĲƸҪԵķõʵֵּɣ
ǵԺĲĹӦ̣ȳΪѣΪ˸õлĸ𵽻ЧǹӦעһԭװīСġ
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   ī	51640A	198	90	   	C7115	446	120
   ī	C6578D	235	100	   	C4129X	1125	380
   ī	BC-01		60	   	C4127A	780	180
   ī	BC-02	130	60	   	C4096A	729	120
   ī	BC-03	132	60	   	92274A	700	180
   ī	BC-05	155	70	   	C3909A	1300	480
   ī	BC-06	130	70	   	C3903F	560	150
   ī	BC-20	175	80	   	C4127X	920	380
   ī	BX-2	133	60	   	92298A	710	150
   ī	BX-3	160	60	   	C3900A	1130	380
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On Sat, Nov 22, 2003 at 10:45:51PM +0000, Joel Soete wrote:
> hmm b2k and c3k are very brother system in term of architecture and 
> components?

yes - identical nearly. Share the same CPU, chipset, and firmware.

>  May I ask you the amount of ram stand in your c3k? (on my 
> b2k only 256k).

1GB.


> >If network, then I would guess your merge (or the 2.4.23-rc2 base) has a 
> >bug.
> 
> Certainly :( [but where, the rest ftp, rsync, nfs-client, gtk-app, ... 
> work fine and no special messages neither into kernel, messages or 
> syslog?]. Well don't care now, it is just a beat anoying to printout my 
> scripts.

ok. TBH, I have no clue then. It might be possible to attach strace to
a running lp deamon, redirect strace output to /dev/console and then
compore what happens different on the b2k when a print job is started.
My hope is the syscall output will get printed before it totallte crashes.

grant


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On Sat, Nov 22, 2003 at 10:49:20PM +0000, Joel Soete wrote:
> >2.4.22-pa17 on c3k, "strace -f -o /tmp/dcop.out dcopserver" hung at home. 
> Sorry I forget to ask if "strace -f dcopserver" works?

good question. It locked up with 2.4.22-pa17 as well. :^(
"locked up" meaning:
o I could ping a NIC
o console mouse/keyboard stopped responding
o I couldn't ssh into the box.

System TOC'd nicely and then HPMC'd the box.
GR00-3 0x0  0x1032f010 0x102a1a70  0x1038953c
GR20-23 0x53  0xff..ff 0x0a  0x3c230a1c
GR24-27  0x102bddbd 0xff...feb 0x3c230948 0x102d2010

IIA Space  0x0
IIA Offset 0x102a0994 strnlen+18
GR02 0x102a1a70 vsnprintf+6dc

blecchh...need a full stack unwinder.

grant


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On Sun, Nov 23, 2003 at 09:54:34PM +0000, Joel Soete wrote:
> Hi Matthew and all,
> 
> Did you foreseen to backport your great patch (sym-2.1.18i) to 2.4?
> (well some part wouldn't have to be applied (as __init change) but many
> stuff would be interesting?)

I'm considereing do that backport once willy feels the code is "stable".
We have to sort out the u160 support - it's not very clear how it is
supposed to work and it doesn't seem to.

> Is there some interest? faisible?

yes and eventually.

thanks,
grant


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A500-65 (aka ion) booted with:
Linux version 2.6.0-test9-4-parisc64 (jejb@raven) (gcc version 3.0.4) #2 Wed Nov 5 22:30:59 CST 2003


Last console output before it crashed:

slab: Internal list corruption detected in cache 'buffer_head'(32), slabp 000000003bc0c000(0). Hexdump:

000: 00 00 00 00 00 00 00 40 00 00 00 00 10 4a b5 90
010: 00 00 00 00 08 00 00 0f 00 00 00 00 4f 6c 14 c0
020: 00 00 00 00 00 0c 00 00 00 00 00 00 4f 6c 14 c0
030: 00 00 00 00 10 28 56 1c 00 00 00 00 3f 4d c9 48
040: 00 00 00 00 90 5b 70 b0 00 00 00 00 10 40 98 60
050: 00 00 00 00 4f 2a d5 00 00 00 00 00 10 40 98 60
060: 00 00 00 00 10 40 98 60 00 00 00 00 10 40 98 60
070: 00 00 00 00 00 0c c4 b0 00 00 00 00 10 3b 56 28
080: 00 00 00 00 11 a6 f8 30
kernel BUG at mm/slab.c:1752!
Kernel addresses on the stack:
 [<0000000010110478>] show_trace+0x40/0x110
 [<00000000101102c4>] dump_stack+0x24/0x38
 [<000000001016e170>] cache_alloc_refill+0x2f0/0x620
 [<0000000010190b30>] __getblk+0x38/0x80
 [<000000001016ee80>] kmem_cache_alloc+0x2a0/0x2b0
 [<000000000010f7c4>] ext2_alloc_branch+0x6c/0x310 [ext2]
 [<0000000010194fa8>] alloc_buffer_head+0x30/0x80
 [<000000001018fda8>] create_buffers+0x80/0x110
 [<00000000101eac24>] __divdi3+0x74/0xd0
 [<0000000010191154>] create_empty_buffers+0x2c/0x130
 [<000000001019230c>] __block_prepare_write+0x7d4/0x7e8
 [<0000000010193214>] block_prepare_write+0x44/0x78
 [<0000000000110024>] ext2_prepare_write+0x3c/0x50 [ext2]
 [<000000001016555c>] generic_file_aio_write_nolock+0x3cc/0xb88
 [<000000001016b724>] page_cache_readahead+0x144/0x198
 [<0000000010165d70>] generic_file_write_nolock+0x58/0x90
 [<000000001017aaa0>] do_no_page+0x320/0x678
 [<0000000010163938>] generic_file_read+0x68/0xa0
 [<000000001017b0e0>] handle_mm_fault+0x180/0x1f0
 [<0000000010165f54>] generic_file_write+0x7c/0xf0
 [<000000001018c8b4>] vfs_write+0xfc/0x170
 [<0000000010112258>] do_irq+0x138/0x190
 [<000000001018ca3c>] sys_write+0x64/0xb0
 [<0000000010112378>] do_cpu_irq_mask+0xc8/0x138


Last activity:
	I had just reconfigured the tulip/tg3.
And then started a "DISTCC" run from gsyprf11 with ion's tg3 card
listed as the only other in DISTCC_HOSTS. gsyprf11 and ion are
both connected to the same GigE switch and thus can talk full duplex
at "link rate". gsyprf11 survived and is running
	 2.4.21-pa6 #23 Mon Jul 14 23:11:39 PDT 2003

thanks,
grant



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Trying to build 64-bit 2.6.0-test10 on a500...I'm getting:

grundler <537>make
make[1]: `arch/parisc/kernel/asm-offsets.s' is up to date.
  CHK     include/asm-parisc/offsets.h
  CHK     include/linux/compile.h
  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
/usr/bin/hppa64-linux-ld: line 4:  9184 Segmentation fault      /opt/palinux/bin/$prog $*
make: *** [.tmp_vmlinux1] Error 139
grundler <538>

It likely I'm not be the only person running into this.
And not sure why I'm suddenly seeing this problem though...

thanks,
grant


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> It likely I'm not be the only person running into this.
> And not sure why I'm suddenly seeing this problem though...

The 64-bit binutils in gcc-hppa64 is too old. This problem was fixed a
few months back but we don't yet have a newer packaged binutils. you can
either build one yourself from latest binutils cvs for the hppa64-linux
target, or wait for a new gcc-hppa64 to be packaged. (any volunteers?
;-)

i wanted to update the package to use a newer gcc (it's using 3.0.4
right now) but gcc-3.3 doesn't seem to produce working kernels for
hppa64-linux :( for now i guess we want to build gcc-3.0.4+latest
binutils

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>>  May I ask you the amount of ram stand in your c3k? (on my 
>> b2k only 256k).
>
>1GB.
>
I would be curious if the same behavior occurs with only 512K?

>> >If network, then I would guess your merge (or the 2.4.23-rc2 base) has
a 
>> >bug.
>> 
>> Certainly :( [but where, the rest ftp, rsync, nfs-client, gtk-app, ...

>> work fine and no special messages neither into kernel, messages or 
>> syslog?]. Well don't care now, it is just a beat anoying to printout my

>> scripts.
>
>ok. TBH, I have no clue then. It might be possible to attach strace to
>a running lp deamon, redirect strace output to /dev/console and then
>compore what happens different on the b2k when a print job is started.

Good idea, I will try to see howto.

>My hope is the syscall output will get printed before it totallte crashes.

That should be a good explanation.

Thanks for attention,
Joel



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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] DIFF 2.6.0-test10 SATA dma_address
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Willy, Alan,

SATA support attempts to directly reference scattergather.dma_address
and .dma_length. That's wrong since those are arch specific fields.
alpha, cris, parisc, ppc64, sparc, and sparc64 won't build SATA.

SATA code needs to use "sg_dma_address()" and sg_dma_len()" macros
to reference those fields.

If this patch looks good, please tell me which forum (linux-scsi?)
this needs to be posted to.

Patch appended and also available from:
	ftp://ftp.parisc-linux.org/patches/diff-2.6.0-t10-sata

The code now compiles but I've not yet built a kernel (forgot to
disable KALLSYMS - toolchain bugs) and don't have the HW to test it. 

cheers,
grant


Index: drivers/scsi/libata-core.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/libata-core.c,v
retrieving revision 1.3
diff -u -p -r1.3 libata-core.c
--- drivers/scsi/libata-core.c	24 Nov 2003 03:16:17 -0000	1.3
+++ drivers/scsi/libata-core.c	24 Nov 2003 06:28:18 -0000
@@ -1627,8 +1627,8 @@ static void ata_sg_clean(struct ata_queu
 	if (cmd->use_sg)
 		pci_unmap_sg(ap->host_set->pdev, sg, qc->n_elem, dir);
 	else
-		pci_unmap_single(ap->host_set->pdev, sg[0].dma_address,
-				 sg[0].length, dir);
+		pci_unmap_single(ap->host_set->pdev, sg_dma_address(&sg[0]),
+				 sg_dma_len(&sg[0]), dir);
 
 	qc->flags &= ~ATA_QCFLAG_SG;
 	qc->sg = NULL;
@@ -1651,8 +1651,8 @@ void ata_fill_sg(struct ata_queued_cmd *
 	assert(qc->n_elem > 0);
 
 	for (i = 0; i < qc->n_elem; i++) {
-		ap->prd[i].addr = cpu_to_le32(sg[i].dma_address);
-		ap->prd[i].flags_len = cpu_to_le32(sg[i].length);
+		ap->prd[i].addr = cpu_to_le32(sg_dma_address(&sg[i]));
+		ap->prd[i].flags_len = cpu_to_le32(sg_dma_len(&sg[i]));
 		VPRINTK("PRD[%u] = (0x%X, 0x%X)\n",
 			i, le32_to_cpu(ap->prd[i].addr), le32_to_cpu(ap->prd[i].flags_len));
 	}
@@ -1683,12 +1683,12 @@ static int ata_sg_setup_one(struct ata_q
 
 	sg->page = virt_to_page(cmd->request_buffer);
 	sg->offset = (unsigned long) cmd->request_buffer & ~PAGE_MASK;
-	sg->length = cmd->request_bufflen;
+	sg_dma_len(sg) = cmd->request_bufflen;
 
 	if (!have_sg)
 		return 0;
 
-	sg->dma_address = pci_map_single(ap->host_set->pdev,
+	sg_dma_address(sg) = pci_map_single(ap->host_set->pdev,
 					 cmd->request_buffer,
 					 cmd->request_bufflen, dir);
 
@@ -1909,7 +1909,7 @@ static void ata_pio_sector(struct ata_po
 	qc->cursg_ofs++;
 
 	if (cmd->use_sg)
-		if ((qc->cursg_ofs * ATA_SECT_SIZE) == sg[qc->cursg].length) {
+		if ((qc->cursg_ofs * ATA_SECT_SIZE) == sg_dma_len(&sg[qc->cursg])) {
 			qc->cursg++;
 			qc->cursg_ofs = 0;
 		}
Index: drivers/scsi/sata_promise.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/sata_promise.c,v
retrieving revision 1.3
diff -u -p -r1.3 sata_promise.c
--- drivers/scsi/sata_promise.c	24 Nov 2003 03:16:17 -0000	1.3
+++ drivers/scsi/sata_promise.c	24 Nov 2003 06:28:18 -0000
@@ -603,8 +603,8 @@ static void pdc20621_fill_sg(struct ata_
 	last = qc->n_elem;
 	idx = 0;
 	for (i = 0; i < last; i++) {
-		buf[idx++] = cpu_to_le32(sg[i].dma_address);
-		buf[idx++] = cpu_to_le32(sg[i].length);
+		buf[idx++] = cpu_to_le32(sg_dma_address(&sg[i]));
+		buf[idx++] = cpu_to_le32(sg_dma_len(&sg[i]));
 		total_len += sg[i].length;
 	}
 	buf[idx - 1] |= cpu_to_le32(ATA_PRD_EOT);


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On Mon, Nov 24, 2003 at 08:21:28AM +0100, Joel Soete wrote:
> I would be curious if the same behavior occurs with only 512K?

sorry - I don't think it's worth removing 512 MB to try.

grant


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>"locked up" meaning:
>o I could ping a NIC
>o console mouse/keyboard stopped responding
>o I couldn't ssh into the box.
>
Exactly what I see when i reach to reproduce

>System TOC'd nicely and then HPMC'd the box.
>GR00-3 0x0  0x1032f010 0x102a1a70  0x1038953c
>GR20-23 0x53  0xff..ff 0x0a  0x3c230a1c
>GR24-27  0x102bddbd 0xff...feb 0x3c230948 0x102d2010
>
>IIA Space  0x0
>IIA Offset 0x102a0994 strnlen+18
>GR02 0x102a1a70 vsnprintf+6dc
Exactly the same for the 'strace lpr' (excepted address)?
grrr I retry this morning, no more means to reproduce :(

But you have right for the toc (removing cdrom doesn't help).
I just trigger and notice 4 messages wraping on lcd:
FLT CBF0: SYS DB
HPMC Initiated

FLT 500B: SYS DB
Bus time out

FLT CBF1: SYS DB
no OS HPMC IVA

FLT CBFC: SYS DB
OS HPMC br err

And only power off / on allow to restart. (id don't remember if toc sync
disk or not, but I noticed also that fs have to fsck)

OTC it help to boot 2.4.22-pa12 + aty patch :) (i will see what can I do
with that stuff)

>blecchh...need a full stack unwinder.

Courage ;),
    Joel


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Grant,

>I'm considereing do that backport once willy feels the code is "stable".
Ok nice :) 

>We have to sort out the u160 support - it's not very clear how it is
>supposed to work and it doesn't seem to.
>
>> Is there some interest? faisible?
>
>yes and eventually.

"Just call team" if you feel to need help,
Joel

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I got the same when building a 64bit kernel with KALLSYMS enabled...

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/

PS: I might be able to package a newer hppa64-gcc, assuming i'm told
what to put in it ;)

Le lundi, 24 nov 2003, =E0 08:07 Europe/Paris, Grant Grundler a =E9crit =
:

> Trying to build 64-bit 2.6.0-test10 on a500...I'm getting:
>
> grundler <537>make
> make[1]: `arch/parisc/kernel/asm-offsets.s' is up to date.
>   CHK     include/asm-parisc/offsets.h
>   CHK     include/linux/compile.h
>   GEN     .version
>   CHK     include/linux/compile.h
>   UPD     include/linux/compile.h
>   CC      init/version.o
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
> /usr/bin/hppa64-linux-ld: line 4:  9184 Segmentation fault     =20
> /opt/palinux/bin/$prog $*
> make: *** [.tmp_vmlinux1] Error 139
> grundler <538>
>
> It likely I'm not be the only person running into this.
> And not sure why I'm suddenly seeing this problem though...
>
> thanks,
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>



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From: "AllLotto UK" <winningcoordinator@alllotto.co.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] You are the WINNER!!!
Date: Mon, 24 Nov 2003 14:20:51 +0000
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AllLotto UK=2E

 REF=3A OGS=2F2311786008=2F01
 BATCH=3A 14=2F011=2FIPD
 RE=3A WINNING NOTIFICATION=2FFINAL NOTICE

 We are pleased to inform you of the result of the of All lotto
international programs held on the 21st of November 2003=2E

Your e-mail address attached to ticket number 20511465886-629 with serial
number 3772-99 drew lucky numbers=3A


Game Date=09 =09Game=09 =09Result=09 =09
2003-11-21 =09 =09Daily Play=3A=09 =092=2C 10=2C 11=2C 13=2C 14=2C 16=2C 26 =09 =09
2003-11-19 =09 =09Lottery Extra=3A=09 =096=2C 8=2C 19=2C 22=2C 31=2C 34 =09 =09
2003-11-19 =09 =09Lotto=3A=09 =0911=2C 12=2C 13=2C 18=2C 43=2C 48=2C Bonus 21 =09 =09
2003-11-19 =09 =09Thunder ball=3A=09 =091=2C 9=2C 16=2C 19=2C 27=2C Thunder ball=3A 14 =09 =09


YOU ARE THEREFORE ENTITLED TO A LUMP SUM PAYOUT OF =A3800=2C 000=2E 00=2E CONGRATULATIONS!!!

Due to mix up of some numbers and names=2C we ask that you keep your winning
information confidential until your claim has been processed and your money
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All participants were selected through a computer ballot system drawn from
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Remember=2C all winning must be claimed not later than or before the 30 days
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Email=3A nationwidetrust=5Fforeignpayments=40yahoo=2Eco=2Euk

Congratulations once more from our members of staff and thank you for
Being part of our promotional program=2E


Note=3A Anybody under the age of 18 is automatically disqualified=2E

Sincerely yours=2C

Kenneth Jenkins
All Lotto UK




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On Mon, Nov 24, 2003 at 08:49:20AM +0100, Joel Soete wrote:
> And only power off / on allow to restart. (id don't remember if toc sync
> disk or not, but I noticed also that fs have to fsck)

TOC has nothing to do with the file system

grant


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On Sun, 2003-11-23 16:45:50 -0500, John David Anglin <dave@hiauly1.hia.nrc.=
ca>
wrote in message <200311232145.hANLjo4i028914@hiauly1.hia.nrc.ca>:

> > I thrust you - bad for me; I'm currently looking at vax-linux, where we
> > use an quite dated compiler...
>=20
> There is one outstanding PR for the vax which causes labels to be deleted
> after a case insn.  If this gets fixed, you probably should be able to
> switch to GCC 3.4.  I know C builds at -O1.

Not even HEAD binutils will work unpatched for vax-linux (it's missing
Linux glue code as well as configure need to recognize vax-linux (or
vax-dec-linux-gnu)... It's just that there are really little people
interested in Linux on a VAX and thus, even all the work needed to keep
catching up with HEAD is a hard time...

However, *BSD does already support VAX somewhat and I hope that we maybe
can profit from that fact, esp for GCC.

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
   ret =3D do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TC=
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] strace locks up 2.4.22-pa14
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Xref: news.gmane.org gmane.linux.ports.parisc:20216

Hi Grant,

Just a follow up:

>-- Original Message --
>From: "Joel Soete" <soete.joel@tiscali.be>
>To: "Grant Grundler" <grundler@parisc-linux.org>
>Cc: parisc-linux@lists.parisc-linux.org
>Date: Mon, 24 Nov 2003 08:21:28 +0100
>Subject: Re: [parisc-linux] strace locks up 2.4.22-pa14
>
>
>

>>ok. TBH, I have no clue then. It might be possible to attach strace to
>>a running lp deamon, redirect strace output to /dev/console and then
>>compore what happens different on the b2k when a print job is started.
>
>Good idea, I will try to see howto
>
Oops, I try first to strace lpd ("strace -f -p xxx 2>&1 | tee Strace-lpd.log")on
the b180 (running a 2.4.19 + lvm (aka dm) support) but this "locked up" too.

Unfortunately, I don't have anymore a 'woody' install to try to trace back
when the strace pb appears :(.

btw since my last update (last friday), I couldn't any more print with this
b180 too.

J.


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On Sun, Nov 23, 2003 at 10:05:35PM -0700, Grant Grundler wrote:
> I'm considereing do that backport once willy feels the code is "stable".
> We have to sort out the u160 support - it's not very clear how it is
> supposed to work and it doesn't seem to.

Yeah, I have some patches, but they're not working very well yet.

> > Is there some interest? faisible?
> 
> yes and eventually.

I'm completely uninterested in doing this, FWIW.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Subject: Re: [parisc-linux] hppa64-linux-ld segfault
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On Sun, Nov 23, 2003 at 11:15:51PM -0800, Randolph Chung wrote:
> i wanted to update the package to use a newer gcc (it's using 3.0.4
> right now) but gcc-3.3 doesn't seem to produce working kernels for
> hppa64-linux :( for now i guess we want to build gcc-3.0.4+latest
> binutils

Since gcc after 3.0 won't produce functional SMP kernels for 32-bit
either, there's really no point in moving from 3.0 for 32-bit either.
I guess we need to rename it kgcc or something ;-(

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Hi there,

I finally bypass my trouble with initializing HD by formating it on another
computer.
So, the installation begins well, but when arriving at the first real step
(installing kernel and modules), the system want and tries to create rescue
disk.

when doing a df, I saw that /floppy is /dev/loop0
And the computer stays blocked at this point...

I've plug a floppy, but no more results....

Can someone tell me how to pass this step?

CrazyCat from C-P-F.org



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On Tue, Nov 25, 2003 at 05:34:14PM +0100, CrazyCat from CPF wrote:
> I've plug a floppy, but no more results....

floppy is not supported - needs work.

> Can someone tell me how to pass this step?

<arrow down> key to skip this step?

I've never created a "rescue floppy" for any parisc system.

grant


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Subject: [parisc-linux] [RFC] rewrite kernel spinlock code to work better with gcc
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This has been discussed in bits and pieces several times on the list,
let me summarize:

- On at least some PA processors, addresses passed to ldcw() must be
16-byte aligned
- gcc doesn't guarantee alignment of automatic variables even if the
structure is marked with aligned(16). In gcc-3.0.x, this worked most of
the time because stack alignment was set to 128 bits, but this caused
various problems so the change was reverted in later revisions of gcc.

In glibc, Carlos and Dave implemented "auto-aligning" locks by using an
array of 4 ints and doing ldcw on the 16-byte aligned word inside that
array. This makes the code work all the time irregardless of how it is
placed in memory. Here's a patch that implements similar locking
mechanisms for the kernel. It compiles, but as SMP still doesn't boot
on 2.6, i haven't really tried to run it. 

there is some concern this will make structures bigger, but at least 
in some situations this actually makes them smaller. e.g.
if you have:

struct { int x; spinlock_t lock; };

with the current scheme (using the aligned(16) attribute) the structure
is 32 bytes. with the new scheme it is only 20 bytes. actually i don't
think there are any cases where it will make any structures bigger 
than they are now..... 

Any comments?

Index: include/asm-parisc/spinlock.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/spinlock.h,v
retrieving revision 1.1
diff -u -p -r1.1 spinlock.h
--- include/asm-parisc/spinlock.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/spinlock.h	26 Nov 2003 07:00:12 -0000
@@ -4,35 +4,42 @@
 #include <asm/system.h>
 
 /* Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
- * since it only has load-and-zero.
+ * since it only has load-and-zero. Moreover, at least on some PA processors,
+ * the semaphore address has to be 16-byte aligned.
  */
 
 #undef SPIN_LOCK_UNLOCKED
-#define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 }
+#define SPIN_LOCK_UNLOCKED (spinlock_t) { { 1, 1, 1, 1 } }
 
-#define spin_lock_init(x)	do { (x)->lock = 1; } while(0)
+#define spin_lock_init(x)	do { *(x) = SPIN_LOCK_UNLOCKED; } while(0)
 
-#define spin_is_locked(x) ((x)->lock == 0)
-
-#define spin_unlock_wait(x)	do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
-
-#if 1
-#define _raw_spin_lock(x) do { \
-	while (__ldcw (&(x)->lock) == 0) \
-		while (((x)->lock) == 0) ; } while (0)
-
-#else
-#define _raw_spin_lock(x) \
-	do { while(__ldcw(&(x)->lock) == 0); } while(0)
-#endif
+static inline int spin_is_locked(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	return *a == 0;
+}
+
+#define spin_unlock_wait(x)	do { barrier(); } while(spin_is_locked(x))
+
+static inline void _raw_spin_lock(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	while (__ldcw(a) == 0)
+		while (*a == 0);
+}
+
+static inline void _raw_spin_unlock(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	*a = 1;
+}
+
+static inline int _raw_spin_trylock(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	return __ldcw(a) != 0;
+}
 	
-#define _raw_spin_unlock(x) \
-	do { (x)->lock = 1; } while(0)
-
-#define _raw_spin_trylock(x) (__ldcw(&(x)->lock) != 0)
-
-
-
 /*
  * Read-write spinlocks, allowing multiple readers
  * but only one writer.
@@ -42,7 +49,7 @@ typedef struct {
 	volatile int counter;
 } rwlock_t;
 
-#define RW_LOCK_UNLOCKED (rwlock_t) { {1}, 0 }
+#define RW_LOCK_UNLOCKED (rwlock_t) { { { 1, 1, 1, 1 } }, 0 }
 
 #define rwlock_init(lp)	do { *(lp) = RW_LOCK_UNLOCKED; } while (0)
 
Index: include/asm-parisc/system.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/system.h,v
retrieving revision 1.1
diff -u -p -r1.1 system.h
--- include/asm-parisc/system.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/system.h	26 Nov 2003 07:00:12 -0000
@@ -145,6 +145,19 @@ static inline void set_eiem(unsigned lon
 	__ret; \
 })
 
+/* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
+   and GCC only guarantees 8-byte alignment for stack locals, we can't
+   be assured of 16-byte alignment for atomic lock data even if we
+   specify "__attribute ((aligned(16)))" in the type declaration.  So,
+   we use a struct containing an array of four ints for the atomic lock
+   type and dynamically select the 16-byte aligned int from the array
+   for the semaphore.  */
+#define __PA_LDCW_ALIGNMENT 16
+#define __ldcw_align(a) ({ \
+  unsigned long __ret = (unsigned long) a;                     		\
+  __ret = (__ret + __PA_LDCW_ALIGNMENT - 1) & ~(__PA_LDCW_ALIGNMENT - 1); \
+  (unsigned int *) __ret;                                               \
+})
 
 #ifdef CONFIG_SMP
 /*
@@ -152,7 +165,7 @@ static inline void set_eiem(unsigned lon
  */
 
 typedef struct {
-	volatile unsigned int __attribute__((aligned(16))) lock;
+	volatile unsigned int lock[4];
 } spinlock_t;
 #endif
Index: include/asm-parisc/atomic.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/atomic.h,v
retrieving revision 1.5
diff -u -p -r1.5 atomic.h
--- include/asm-parisc/atomic.h	22 Sep 2003 14:28:12 -0000	1.5
+++ include/asm-parisc/atomic.h	26 Nov 2003 07:00:12 -0000
@@ -24,11 +24,18 @@
 
 extern spinlock_t __atomic_hash[ATOMIC_HASH_SIZE];
 /* copied from <asm/spinlock.h> and modified */
-#  define SPIN_LOCK(x) \
-	do { while(__ldcw(&(x)->lock) == 0); } while(0)
-	
-#  define SPIN_UNLOCK(x) \
-	do { (x)->lock = 1; } while(0)
+static inline void SPIN_LOCK(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	while (__ldcw(a) == 0)
+		while (*a == 0);
+}
+
+static inline void SPIN_UNLOCK(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	*a = 1;
+}
 #else
 #  define ATOMIC_HASH_SIZE 1
 #  define ATOMIC_HASH(a)	(0)


randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] Install failure: C240, 3.0r1, 2003.09.24 and 2003.10.22 net inst isos
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On Monday 27 October 2003 09:55 pm, Grant Grundler wrote:
> Nicholas,
> thanks for the bug report.
> Please see http://www.parisc-linux.org/faq/kernelbug-howto.html
>
> more questions/comments below.
>
> On Mon, Oct 27, 2003 at 08:33:00PM -0600, Nicholas Leippe wrote:
> > Hello all,
> >
> > I just got my new C240 set up and attempted to install.  With either
> > of
> >
> > palinux-2.4.22-pa9-20030924-netinst.iso
> > palinux-2.4.22-pa13-20031022-netinst.iso
> >
> > it boots into the debian installer and then promptly hangs at the
> > 'select language' menu.

Okay, I haven't spent the time yet to get any detailed info on these 
failures, but I thought I'd at least report the behavior I've observed so 
far.  With graphical install on any of:

3.0r1
palinux-2.4.22-pa9-20030924-netinst.iso
palinux-2.4.22-pa13-20031022-netinst.iso

I get various, repeatable failures before getting to or past the first 
menu.  However, I can complete a successful install from serial console 
with at least two of them.  However, once installed and rebooted, if I 
attempt to install additional packages, after a while the machine will 
freeze solid while apt is trying to do it's thing.

With the latest:

palinux-2.4.22-pa17-20031119-netinst.iso

During graphical install, it successfully gets through the menus, but once 
it starts the package installation cp get's stuck in the D state.  I can 
alt-f2 or whatever to another vc and use top to see-but the installer is 
thoroughly hung.

Just last weekend, I successfully installed hpux 10.20 from cd with no 
hiccups whatsoever, and it still runs like a peach.  So, I'm leaning even 
further away from suspecting a hardware fault.

My machine is:
C240
1.5GB ram (edo)
4.5GB UW hdd (Seag. ST34572W)
CDROM (Tosh. XM5701-B)
fdd
A4450A (eg) video

Probably irrelevant details, but ya never know.  Perhaps an issue with 
HIMEM since it's >1GB ?

>
> See "Hung Kernels" section in the FAQ.
>
> Did you try to install with serial console or graphics console?
> With serial console, it's easier to capture the output.
> And it's possible this bug only affects graphical console.
>
> >   I dug around the archives and found an email about this
> > from several years ago, but no resolution was posted.
>
> URL for mail you found?

Sorry, can't remember what it was now.

>
> > So I dug out my 3.0r1 cd to try but got an HPMC a little ways into
> > the kernel boot.  I know the 3.0r1 cd is good, since I successfully
> > installed a C180 with it (besides checking the md5s, which I also did
> > for the netinst isos).

...

> >
> > Any ideas?  Need more info?--just tell me what and how to get it.
>
> "in io" output from the boot console handler would also be good.
>

I'll dig into this a bit more when I get time.  If any of these details 
help narrow it down any, let me know what details to go for first.  
Otherwise I'll see if I can grab some details from the serial console 
&etc. as requested before in the first reply.


Nick



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Subject: Re: [parisc-linux] installation blocks
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Grant Grundler wrote:
>> Can someone tell me how to pass this step?
> <arrow down> key to skip this step?

No, I haven't any choice: when I ask to install kernel and modules, it
downloads  current/32/images-1.44/rescue.bin and  current/32/linux.bin , and
then begins to create rescue floppy (seems to but is blocked)

CrazyCat from C-P-F.org



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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] gcc-3.3.2 - 64bit failled to build?
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Hi all,

I am trying to rebuild gcc-3.3.2 64bits following Carlos build xc howto.

I am using gcc-3.3.2-4 debian pkg src; after the extraction of src with 'dpkg-source
-x gcc-3.3_3.3.2ds5-4.dsc', then in src tree apply debian patches (and get
the actual src by the way).

The build of the tool chain 32bit works fine as well as binutils 64bits but
the build of the patial gcc 64bit (let say kgcc) with following configure
options (the same as 32bit but the target 64bits):
../src/configure --target=hppa64-linux --host=hppa-linux --prefix=/opt/parisc
--disable-shared --disable-nls --without-libc --enable-langages=c

failled with messages:

/Develop/parisc-linux/build/gcc/gcc/xgcc -B/Develop/parisc-linux/build/gcc/gcc/
-B/opt/palinux/hppa64-linux/bin/ -B/opt/palinux/hppa64-linux/lib/ -isystem
/opt/palinux/hppa64-linux/include -O2  -DIN_GCC -DCROSS_COMPILE   -W -Wall
-Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include
 -fPIC -Dpa64=1 -DELF=1 -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED
-Dinhibit_libc -I. -I. -I/Develop/parisc-linux/sources/gcc/gcc -I/Develop/parisc-linux/sources/gcc/gcc/.
-I/Develop/parisc-linux/sources/gcc/gcc/config -I/Develop/parisc-linux/sources/gcc/gcc/../include
-fexceptions -c /Develop/parisc-linux/sources/gcc/gcc/unwind-dw2.c -o libgcc/./unwind-dw2.o
In file included from /Develop/parisc-linux/sources/gcc/gcc/unwind-dw2.c:26:
/Develop/parisc-linux/sources/gcc/gcc/unwind-pe.h: In function `size_of_encoded_value':
/Develop/parisc-linux/sources/gcc/gcc/unwind-pe.h:76: warning: implicit declaration
of function `abort'
In file included from gthr-default.h:1,
                 from /Develop/parisc-linux/sources/gcc/gcc/gthr.h:98,
                 from /Develop/parisc-linux/sources/gcc/gcc/unwind-dw2.c:28:
/Develop/parisc-linux/sources/gcc/gcc/gthr-posix.h:37:21: pthread.h: No such
file or directory
/Develop/parisc-linux/sources/gcc/gcc/gthr-posix.h:38:20: unistd.h: No such
file or directory
In file included from gthr-default.h:1,
                 from /Develop/parisc-linux/sources/gcc/gcc/gthr.h:98,
                 from /Develop/parisc-linux/sources/gcc/gcc/unwind-dw2.c:28:
[blabla]

even thought i use --without-libc it seems to look for glibc header: pthread.h
& unistd.h?

Any idea?

Thanks,
    Joel

PS: still interesting to fix it in 3.3.2 or better use 3.4?

 

-------------------------------------------------------------------------
Tiscali ADSL: 12 mois  29,50 /mois! L'Internet rapide, c'est pour tout
le monde.
http://reg.tiscali.be/default.asp?lg=fr




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Subject: [parisc-linux] Remote-Control Boats & Cars - Great Xmas Gifts.....cynara
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--44E_69_B7.10738F97.8
Content-Type: text/html;
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Subject: Re: [parisc-linux] gcc-3.3.2 - 64bit failled to build?
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> ../src/configure --target=hppa64-linux --host=hppa-linux --prefix=/opt/parisc
> --disable-shared --disable-nls --without-libc --enable-langages=c

try this:
../gcc-3.3/configure --host=hppa-linux --build=hppa-linux --target=hppa64-linux --disable-shared --disable-nls --enable-languages=c --prefix=/opt/palinux --enable-sjlj-exceptions --disable-threads

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> +/* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
> +   and GCC only guarantees 8-byte alignment for stack locals, we can't
> +   be assured of 16-byte alignment for atomic lock data even if we
> +   specify "__attribute ((aligned(16)))" in the type declaration.  So,
> +   we use a struct containing an array of four ints for the atomic lock
> +   type and dynamically select the 16-byte aligned int from the array
> +   for the semaphore.  */
> +#define __PA_LDCW_ALIGNMENT 16
> +#define __ldcw_align(a) ({ \
> +  unsigned long __ret = (unsigned long) a;                     		\
> +  __ret = (__ret + __PA_LDCW_ALIGNMENT - 1) & ~(__PA_LDCW_ALIGNMENT - 1); \
> +  (unsigned int *) __ret;                                               \
> +})

Change cast to "volatile unsigned int *".

>  typedef struct {
> -	volatile unsigned int __attribute__((aligned(16))) lock;
> +	volatile unsigned int lock[4];
>  } spinlock_t;
>  #endif

Is the struct necessary?  For example,

  typedef volatile unsigned int spinlock_t[4];

I believe that there are situations where the rest of the cache line
holding the active lock word should not be used.  The PA 1.x document
says

  When using semaphores to synchonize with I/O, care must be taken
  in placing other information in the same cache line as the semaphore.
  Data which is writeable can only be placed in the same cache line
  as a semaphore if access to write the data is controlled by the
  semaphore.

I think this restriction only applies to semaphores used both by
I/O and CPU processors, and it's not a concern for semaphores used
solely by CPU processors.  If we have locks used by I/O processors
and they are stack allocated, then some extra padding would appear
to be needed for these locks.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] gcc-3.3.2 - 64bit failled to build?
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On Wed, Nov 26, 2003 at 10:23:45AM +0100, Joel Soete wrote:
> Hi all,
> 
> I am trying to rebuild gcc-3.3.2 64bits following Carlos build xc howto.
> 
> I am using gcc-3.3.2-4 debian pkg src; after the extraction of src with 'dpkg-source
> -x gcc-3.3_3.3.2ds5-4.dsc', then in src tree apply debian patches (and get
> the actual src by the way).
> 
> The build of the tool chain 32bit works fine as well as binutils 64bits but
> the build of the patial gcc 64bit (let say kgcc) with following configure
> options (the same as 32bit but the target 64bits):
> ../src/configure --target=hppa64-linux --host=hppa-linux --prefix=/opt/parisc
> --disable-shared --disable-nls --without-libc --enable-langages=c
> 
> failled with messages:
> 
> /Develop/parisc-linux/build/gcc/gcc/xgcc -B/Develop/parisc-linux/build/gcc/gcc/
> -B/opt/palinux/hppa64-linux/bin/ -B/opt/palinux/hppa64-linux/lib/ -isystem
> /opt/palinux/hppa64-linux/include -O2  -DIN_GCC -DCROSS_COMPILE   -W -Wall
> -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include
>  -fPIC -Dpa64=1 -DELF=1 -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED
> -Dinhibit_libc -I. -I. -I/Develop/parisc-linux/sources/gcc/gcc -I/Develop/parisc-linux/sources/gcc/gcc/.
> -I/Develop/parisc-linux/sources/gcc/gcc/config -I/Develop/parisc-linux/sources/gcc/gcc/../include
> -fexceptions -c /Develop/parisc-linux/sources/gcc/gcc/unwind-dw2.c -o libgcc/./unwind-dw2.o
> In file included from /Develop/parisc-linux/sources/gcc/gcc/unwind-dw2.c:26:
> /Develop/parisc-linux/sources/gcc/gcc/unwind-pe.h: In function `size_of_encoded_value':
> /Develop/parisc-linux/sources/gcc/gcc/unwind-pe.h:76: warning: implicit declaration
> of function `abort'
> In file included from gthr-default.h:1,
>                  from /Develop/parisc-linux/sources/gcc/gcc/gthr.h:98,
>                  from /Develop/parisc-linux/sources/gcc/gcc/unwind-dw2.c:28:
> /Develop/parisc-linux/sources/gcc/gcc/gthr-posix.h:37:21: pthread.h: No such
> file or directory
> /Develop/parisc-linux/sources/gcc/gcc/gthr-posix.h:38:20: unistd.h: No such
> file or directory
> In file included from gthr-default.h:1,
>                  from /Develop/parisc-linux/sources/gcc/gcc/gthr.h:98,
>                  from /Develop/parisc-linux/sources/gcc/gcc/unwind-dw2.c:28:
> [blabla]
> 
> even thought i use --without-libc it seems to look for glibc header: pthread.h
> & unistd.h?
> 
> Any idea?

You need the userspace headers for 64-bits. They don't exist, so I
normally hack them into place. Please try to use Kegel's crosstools and
see if you can get them building our cross-compiler? :)

If you want a quick fix, grab a current debian libc6-dev package, unpack
it using -x and move the /usr/include directory to your
$PREFIX/hppa64-linux directory so that the target headers are there.

c.



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[...]

>You need the userspace headers for 64-bits. They don't exist so I
>normally hack them into place. Please try to use Kegel's crosstools and

The first time I hear about do you have more ref (an url) or I will googelize
it tomorrow :)

>see if you can get them building our cross-compiler? :)
>
>If you want a quick fix, grab a current debian libc6-dev package, unpack
>it using -x and move the /usr/include d
>rectory to your
>$PREFIX/hppa64-linux directory so that the target headers are there.

That is easiest, I will also check it.

Thanks,
    Joel

PS: Randolph tips works also, I obtain a hppa64-linux-gcc (3.3.2-ds5) which
allow me  to obtain a kernel 2.4.23-rc5-pa17 64bit which boot fine on my
b2k :)

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>try this:
>../gcc-3.3/configure --host=hppa-linux --build=hppa-linux --target=hppa64-linux

> --disable-shared --disable-nls --enable-languages=c --prefix=/opt/palinux

> --enable-sjlj-exceptions --disable-threads

Well I test it first and as mentionned to Carlos it allow me to obtain a
kernel 2.4.23-rc5-pa17 64 bits (not yet test your last patch sorry) which
boot fine on my b2k :))

Many thanks,
    Joel

PS: Next step, see i can boot 2.6.0-test10-pa1 64bit on the N4K (b2k still
have a pb iirc)

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Subject: [parisc-linux] C3000 and 2.6 - need config help
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On Thu, 20 Nov 2003, M. Grabert wrote:

> Right now I'm using a 120GB IDE using the onboard IDE of the C3k, and
> I get just about 3MB/s with 2.4.22-paX, which might indicate that DMA is
> not supported (I turned DMA/32bit on with hdparm, but no effects). I also
> doubt that the driver for the onboard IDE chipset is much better in the
> 2.6 kernel, so I opted to install a IDE PCI card.

The IDE harddisk is running for the last couple of months, and I had no
errors whatsoever (using the onboard IDE chipset of the C3k).

However it appears that writing and reading from/to the harddisk slows
down the access time quite a bit (ie. streaming a 180kbit/s movie and
writing a file with 1000kbit/s makes the movie to appear/play jerky);
whereas multiple reads doesn't affect it (ie. streaming serveral movies at
a time with 180kbit/s each).

> Unfortunately the only new PCI IDE cards you can get in the shops these
> days that are ones with the Promise or the SiliconImage chipset;
> suppor for the Promise chipset under linux used to be crap, and
> SiliconImage is only suppoted with 2.6, but at least it works, so I went
> for the latter. Therefore I'm eager to get 2.6 running!

Can anybody tell me what config options I need to boot a 2.6 kernel
without serial console support (since it's broken) and without
STI (since I don't have a graphics card in my C3k)?
I've seen a config option 'DUMMY_CONSOLE' in .config, but I don't find
how to select it in 'make menuconfig' or any description in Documentation/.

I have several machines that run headless - I use serial console then.
But I never had a situation where I didn't even have serial console ...


Thanks for any hints,
  Max


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On Thu, Nov 27, 2003 at 03:07:18AM +0000, M. Grabert wrote:
...
> The IDE harddisk is running for the last couple of months, and I had no
> errors whatsoever (using the onboard IDE chipset of the C3k).

Really! I'm amazed since last time I played with suckyio IDE it
barely worked for CD-ROM installs.

> However it appears that writing and reading from/to the harddisk slows
> down the access time quite a bit (ie. streaming a 180kbit/s movie and
> writing a file with 1000kbit/s makes the movie to appear/play jerky);
> whereas multiple reads doesn't affect it (ie. streaming serveral movies at
> a time with 180kbit/s each).

DMA is probably not enabled. This means all data is "manually" (ie by
the CPU) read or written to the IDE controller 16-bits at a time.
With interrupts turned off, mind you.

Enabling DMA would make a big difference in performance.

> Can anybody tell me what config options I need to boot a 2.6 kernel
> without serial console support (since it's broken) and without
> STI (since I don't have a graphics card in my C3k)?

Willy, tausq, and I hacked around on suckyio serial support.
I posted a preliminary patch to
	 ftp://ftp.parisc-linux.org/patches/diff-2.6.0-suckyio-serial-02

ISTR we have to reset the USB/LAN device via a firmware call *before*
messing with IO MMU (spurious DMA by USB or LAN will MCA the box).
The problem is this firmware call also blows away the serial console.

Work remaining:
1) determine when USB or LAN was left active by firmware.
2) only call firmware to reset all IO when USB or LAN was left active.
3) a) make an early call to init suckyio and it's serial port.
   b) or save/restore suckyio config space registers before/after
      the PDC_IO_RESET calls so PDC console continues to work.

> I've seen a config option 'DUMMY_CONSOLE' in .config, but I don't find
> how to select it in 'make menuconfig' or any description in Documentation/.
> 
> I have several machines that run headless - I use serial console then.
> But I never had a situation where I didn't even have serial console ...

yeah - the real problem is init sequence completely changed in 2.6 (vs 2.4).
We haven't reworked all the same quirks from 2.4 into 2.6 yet.

hth,
grant


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On Wed, 26 Nov 2003, Grant Grundler wrote:

> On Thu, Nov 27, 2003 at 03:07:18AM +0000, M. Grabert wrote:
>
> > However it appears that writing and reading from/to the harddisk slows
> > down the access time quite a bit (ie. streaming a 180kbit/s movie and
> > writing a file with 1000kbit/s makes the movie to appear/play jerky);
> > whereas multiple reads doesn't affect it (ie. streaming serveral movies at
> > a time with 180kbit/s each).
>
> DMA is probably not enabled. This means all data is "manually" (ie by
> the CPU) read or written to the IDE controller 16-bits at a time.
> With interrupts turned off, mind you.
>
> Enabling DMA would make a big difference in performance.

See the old thread:

http://lists.parisc-linux.org/pipermail/parisc-linux/2003-August/020851.html
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-August/020886.html

I've tried to enable DMA and unmask interrupts, but obviously it doesn't
work; at least it doesn't make any difference in performance.

> > I've seen a config option 'DUMMY_CONSOLE' in .config, but I don't find
> > how to select it in 'make menuconfig' or any description in Documentation/.
> >
> > I have several machines that run headless - I use serial console then.
> > But I never had a situation where I didn't even have serial console ...
>
> yeah - the real problem is init sequence completely changed in 2.6 (vs 2.4).
> We haven't reworked all the same quirks from 2.4 into 2.6 yet.

So is there current a way to get 2.6 working *without* serial console or STI ?

Thanks,
  Max


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On Thu, Nov 27, 2003 at 04:45:49AM +0000, M. Grabert wrote:
> I forgot to mention my current IDE settings (unchanged since August):
> 
> root@beast:/home/xam# hdparm -c /dev/hda
> 
> /dev/hda:
>  IO_support   =  1 (32-bit)

The above info is either wrong or ignored.
"data" register for PC87560 is 16-bits only.
(IDE function is NS87415 compatible)

> root@beast:/home/xam# hdparm -d /dev/hda
> 
> /dev/hda:
>  using_dma    =  1 (on)

Given only 3MB/s, I find it hard to believe.
SuckyIO (PC87560UBD) Data sheet claims 16MB/s per channel. 

However, I just now wonder if the limiting factor is not the IDE if the
kernel is copying data to/from kernel to user space.  Our copy_to/from_user
could be alot more efficient (2x guesstimate) for the PA8500 CPU.
I see max bandwidth of 4-5MB/s on a PA8600 (552Mhz) over 100BT.

With a 32X CD-ROM drive in my c3k, "time dd" is only getting 925 KB/s.
I'll guess a few more factors could be muddying the waters here.

root@gggc3k:~# hdparm -i /dev/cdrom

/dev/cdrom:

 Model=CD-532E-B, FwRev=2.0A, SerialNo=
 Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
 RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=DualPortCache, BuffSize=128kB, MaxMultSect=0
 (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4 
 DMA modes:  sdma0 sdma1 sdma2 mdma0 mdma1 *mdma2 
 AdvancedPM=no

 * signifies the current active mode


root@gggc3k:~# hdparm /dev/cdrom

/dev/cdrom:
 HDIO_GET_MULTCOUNT failed: Invalid argument
 IO_support   =  0 (default 16-bit)
 unmaskirq    =  0 (off)
 using_dma    =  0 (off)
 keepsettings =  0 (off)
 readonly     =  1 (on)
 readahead    =  8 (on)
 HDIO_GETGEO failed: Invalid argument

Note the mdma2 and using_dma settings don't agree.
I tried to set using_dma:

root@gggc3k:~# hdparm -d 1 /dev/cdrom

/dev/cdrom:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Operation not permitted
 using_dma    =  0 (off)
root@gggc3k:~# uname -a
Linux gggc3k 2.4.22-pa17 #18 Fri Nov 21 21:16:31 PST 2003 parisc GNU/Linux


BTW, I checked that CONFIG_IDEDMA_ONLYDISK is off.

grant


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On Wed, 26 Nov 2003, Grant Grundler wrote:

> However, I just now wonder if the limiting factor is not the IDE if the
> kernel is copying data to/from kernel to user space.  Our copy_to/from_user
> could be alot more efficient (2x guesstimate) for the PA8500 CPU.
> I see max bandwidth of 4-5MB/s on a PA8600 (552Mhz) over 100BT.

The limiting factor is definitely not the IDE hard disk, it's a new
Seagate 120GB which has a sustained data transfer rate of >30MB/s.

The max. transfer rate of any 100BT network is around 5MByte/s.

Personally I also get something between 4-5MB/s from any host to any
hosy in my home network. If I do a network transfer to the C3k (IDE hard disk),
I get about 4.5MB/s, but after a while the transfer stalls for a short
time, and then continues. However I see sustained 4.5MB/s to my C3k if I
write to any of the SCSI hard disks - without any stalls.

I suppose if it tries to write the data to the IDE hard disk (3.3MB/s),
it can't keep up with the speed of the network (4.5MB/s), so it buffers
the data in the RAM. At some point the buffer is full and the kernel
delays the networks transfer until the buffer content is written to the
IDE disk.


> With a 32X CD-ROM drive in my c3k, "time dd" is only getting 925 KB/s.
> I'll guess a few more factors could be muddying the waters here.

That's equivalent to a 5-6X CD-ROM. Ouch.

[...]

Quite a lot old IDE cdroms drives don't support dma transfers.
Hower you'll get the same message if you try to enable DMA if you have a
kernel that doesn't have a driver with DMA support for your IDE chipset.

I honestly don't thing DMA works ...


 Max


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On Thu, Nov 27, 2003 at 03:16:08PM +0000, M. Grabert wrote:
> The max. transfer rate of any 100BT network is around 5MByte/s.

100BT is capable of 90-95Mb/s ~= 11MB/s.
There's a website someplace that has 100BT performance numbers
for all sorts of card/OS combinations.

I've measured ftp transfers > 10MB/s between ia64 and ia32 machines
over 100BT link.

I'll take another look at why DMA isn't working.
It looks like NS87415 driver has the support in place.
The key bit seems to be init_hwif_ns87415().

grant


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On Thu, 27 Nov 2003, Grant Grundler wrote:

> On Thu, Nov 27, 2003 at 03:16:08PM +0000, M. Grabert wrote:
> > The max. transfer rate of any 100BT network is around 5MByte/s.
>
> 100BT is capable of 90-95Mb/s ~= 11MB/s.

That's theoretical, not really practically possible/feasible :-/

> There's a website someplace that has 100BT performance numbers
> for all sorts of card/OS combinations.
>
> I've measured ftp transfers > 10MB/s between ia64 and ia32 machines
> over 100BT link.

ftp? uncompressed? Well I'm impressed ...
The fastest 100MBit link I ever had was 7MBytes/s.

> I'll take another look at why DMA isn't working.
> It looks like NS87415 driver has the support in place.
> The key bit seems to be init_hwif_ns87415().

Thanks alot,

 Max


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Hi all,

> > I've seen a config option 'DUMMY_CONSOLE' in .config, but I don't find
> > how to select it in 'make menuconfig' or any description in Documentation/.
> >
> > I have several machines that run headless - I use serial console then.
> >
>But I never had a situation where I didn't even have serial console ...
>
> yeah - the real problem is init sequence completely changed in 2.6 (vs
2.4).
> We haven't reworked all the same quirks from 2.4 into 2.6 yet.

> So is there current a way to get 2.6 working *without* serial console or
STI ?

I rebuild a k 2.6.0-test11 with my gcc-3.3.2 64bits without SUPERIO and PDC
console. No pb to rebuild but it failled to boot on the b2k :( (and no console
meana no mean to analyse :( ). 

Sorry to have no more help, but for such kind of pb I read (some time ago
on lwn) that some one was working on a 'network' console for 2.6 (suporting
at this time tulipe's nic among others iirc). I try to contact him but never
get any feedback. Is somebody known the status of this patch in 2.6?

Thanks,
    Joel

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> You need the userspace headers for 64-bits. They don't exist
> so I normally hack them into place. Please try to use Kegel's crosstools
and
> see if you can get them building our cross-compiler? :)

Well I grab it from his site (http://www.kegel.com/crosstool/)

Don't have time to have more look but at first glance it didn't suport yet
hppa (so I will have to see more if there are patches; may be this week-end
;) )

>If you want a quick fix, grab a current debian libc6-dev package, unpack
>it using -x and move the /usr/include directory to your
>$PREFIX/hppa64-linux directory so that the target headers are there.

Sorry no time today but the package is already installed on the system, so
I could just find supplied include files and link it into '$PREFIX/hppa64-linux'?

Thanks,
    Joel

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On Thu, Nov 27, 2003 at 06:21:26PM +0000, M. Grabert wrote:
> On Thu, 27 Nov 2003, Grant Grundler wrote:
> 
> > On Thu, Nov 27, 2003 at 03:16:08PM +0000, M. Grabert wrote:
> > > The max. transfer rate of any 100BT network is around 5MByte/s.
> >
> > 100BT is capable of 90-95Mb/s ~= 11MB/s.
> 
> That's theoretical, not really practically possible/feasible :-/

it's possible with a switched network. It's not possible
with regular hub where one has to deal with collisions.
Full duplex switched networks obsolete token passing as a method to
avoid packet collisions.

> > There's a website someplace that has 100BT performance numbers
> > for all sorts of card/OS combinations.
> >
> > I've measured ftp transfers > 10MB/s between ia64 and ia32 machines
> > over 100BT link.
> 
> ftp? uncompressed? Well I'm impressed ...
> The fastest 100MBit link I ever had was 7MBytes/s.

This is an excellent paper on routing:
	http://robur.slu.se/Linux/net-development/jamal/FF-html/

Peak throughput (in one port of a 4-port tulip card and out another)
is about 50Mb/s because the single CPU is saturated.  He does better
with an SMP machine. Jamal later got 20% perf improvement (measured in
packets per second) using MMIO instead of IO port space . But still
saturating the CPU. Jamal was confident at the time he could route at
link rate (95Mb/s) with 64byte packets on a faster SMP machine.

grant


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Subject: [parisc-linux] Rx - V.I.C.O.D.I.N---Val.ium, Xan.ax, Via.gra...clayton
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Hi Randolph,

may be this alignement with 2.4 is still relevant:
---------><---------
--- system.h-rc 2003-11-30 00:21:55.000000000 +0100
+++ system.h    2003-11-30 00:26:17.000000000 +0100
@@ -138,12 +138,36 @@
  #define set_wmb(var, value)            do { var = value; wmb(); } 
while (0)


-/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
+/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.
+ *
+ * Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
+ * since it only has load-and-zero. Moreover, at least on some PA 
processors,+ * the semaphore address has to be 16-byte aligned.
+ */
+#ifdef CONFIG_PA20
+/*
+> From: "Jim Hull" <jim.hull of hp.com>
+> Delivery-date: Wed, 29 Jan 2003 13:57:05 -0500
+> I've attached a summary of the change, but basically, for PA 2.0, as
+> long as the ",CO" (coherent operation) completer is specified, then the
+> 16-byte alignment requirement for ldcw and ldcd is relaxed, and instead
+> they only require "natural" alignment (4-byte for ldcw, 8-byte for
+> ldcd).
+*/
+
+#define __ldcw(a) ({ \
+       unsigned __ret; \
+       __asm__ __volatile__("ldcw,co 0(%1),%0" : "=r" (__ret) : "r" (a)); \
+       __ret; \
+})
+#else
  #define __ldcw(a) ({ \
         unsigned __ret; \
         __asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a)); \
         __ret; \
  })
+#endif
+

  /* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
     and GCC only guarantees 8-byte alignment for stack locals, we can't
---------><---------

hth,
	Joel

ps: also join as attachment (in case of bad wraping)

Randolph Chung wrote:
> This has been discussed in bits and pieces several times on the list,
> let me summarize:
> 
> - On at least some PA processors, addresses passed to ldcw() must be
> 16-byte aligned
> - gcc doesn't guarantee alignment of automatic variables even if the
> structure is marked with aligned(16). In gcc-3.0.x, this worked most of
> the time because stack alignment was set to 128 bits, but this caused
> various problems so the change was reverted in later revisions of gcc.
> 
> In glibc, Carlos and Dave implemented "auto-aligning" locks by using an
> array of 4 ints and doing ldcw on the 16-byte aligned word inside that
> array. This makes the code work all the time irregardless of how it is
> placed in memory. Here's a patch that implements similar locking
> mechanisms for the kernel. It compiles, but as SMP still doesn't boot
> on 2.6, i haven't really tried to run it. 
> 
> there is some concern this will make structures bigger, but at least 
> in some situations this actually makes them smaller. e.g.
> if you have:
> 
> struct { int x; spinlock_t lock; };
> 
> with the current scheme (using the aligned(16) attribute) the structure
> is 32 bytes. with the new scheme it is only 20 bytes. actually i don't
> think there are any cases where it will make any structures bigger 
> than they are now..... 
> 
> Any comments?
> 
> Index: include/asm-parisc/spinlock.h
> ===================================================================
> RCS file: /var/cvs/linux-2.6/include/asm-parisc/spinlock.h,v
> retrieving revision 1.1
> diff -u -p -r1.1 spinlock.h
> --- include/asm-parisc/spinlock.h	29 Jul 2003 17:02:04 -0000	1.1
> +++ include/asm-parisc/spinlock.h	26 Nov 2003 07:00:12 -0000
> @@ -4,35 +4,42 @@
>  #include <asm/system.h>
>  
>  /* Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
> - * since it only has load-and-zero.
> + * since it only has load-and-zero. Moreover, at least on some PA processors,
> + * the semaphore address has to be 16-byte aligned.
>   */
>  
>  #undef SPIN_LOCK_UNLOCKED
> -#define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 }
> +#define SPIN_LOCK_UNLOCKED (spinlock_t) { { 1, 1, 1, 1 } }
>  
> -#define spin_lock_init(x)	do { (x)->lock = 1; } while(0)
> +#define spin_lock_init(x)	do { *(x) = SPIN_LOCK_UNLOCKED; } while(0)
>  
> -#define spin_is_locked(x) ((x)->lock == 0)
> -
> -#define spin_unlock_wait(x)	do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
> -
> -#if 1
> -#define _raw_spin_lock(x) do { \
> -	while (__ldcw (&(x)->lock) == 0) \
> -		while (((x)->lock) == 0) ; } while (0)
> -
> -#else
> -#define _raw_spin_lock(x) \
> -	do { while(__ldcw(&(x)->lock) == 0); } while(0)
> -#endif
> +static inline int spin_is_locked(spinlock_t *x)
> +{
> +	volatile unsigned int *a = __ldcw_align(x);
> +	return *a == 0;
> +}
> +
> +#define spin_unlock_wait(x)	do { barrier(); } while(spin_is_locked(x))
> +
> +static inline void _raw_spin_lock(spinlock_t *x)
> +{
> +	volatile unsigned int *a = __ldcw_align(x);
> +	while (__ldcw(a) == 0)
> +		while (*a == 0);
> +}
> +
> +static inline void _raw_spin_unlock(spinlock_t *x)
> +{
> +	volatile unsigned int *a = __ldcw_align(x);
> +	*a = 1;
> +}
> +
> +static inline int _raw_spin_trylock(spinlock_t *x)
> +{
> +	volatile unsigned int *a = __ldcw_align(x);
> +	return __ldcw(a) != 0;
> +}
>  	
> -#define _raw_spin_unlock(x) \
> -	do { (x)->lock = 1; } while(0)
> -
> -#define _raw_spin_trylock(x) (__ldcw(&(x)->lock) != 0)
> -
> -
> -
>  /*
>   * Read-write spinlocks, allowing multiple readers
>   * but only one writer.
> @@ -42,7 +49,7 @@ typedef struct {
>  	volatile int counter;
>  } rwlock_t;
>  
> -#define RW_LOCK_UNLOCKED (rwlock_t) { {1}, 0 }
> +#define RW_LOCK_UNLOCKED (rwlock_t) { { { 1, 1, 1, 1 } }, 0 }
>  
>  #define rwlock_init(lp)	do { *(lp) = RW_LOCK_UNLOCKED; } while (0)
>  
> Index: include/asm-parisc/system.h
> ===================================================================
> RCS file: /var/cvs/linux-2.6/include/asm-parisc/system.h,v
> retrieving revision 1.1
> diff -u -p -r1.1 system.h
> --- include/asm-parisc/system.h	29 Jul 2003 17:02:04 -0000	1.1
> +++ include/asm-parisc/system.h	26 Nov 2003 07:00:12 -0000
> @@ -145,6 +145,19 @@ static inline void set_eiem(unsigned lon
>  	__ret; \
>  })
>  
> +/* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
> +   and GCC only guarantees 8-byte alignment for stack locals, we can't
> +   be assured of 16-byte alignment for atomic lock data even if we
> +   specify "__attribute ((aligned(16)))" in the type declaration.  So,
> +   we use a struct containing an array of four ints for the atomic lock
> +   type and dynamically select the 16-byte aligned int from the array
> +   for the semaphore.  */
> +#define __PA_LDCW_ALIGNMENT 16
> +#define __ldcw_align(a) ({ \
> +  unsigned long __ret = (unsigned long) a;                     		\
> +  __ret = (__ret + __PA_LDCW_ALIGNMENT - 1) & ~(__PA_LDCW_ALIGNMENT - 1); \
> +  (unsigned int *) __ret;                                               \
> +})
>  
>  #ifdef CONFIG_SMP
>  /*
> @@ -152,7 +165,7 @@ static inline void set_eiem(unsigned lon
>   */
>  
>  typedef struct {
> -	volatile unsigned int __attribute__((aligned(16))) lock;
> +	volatile unsigned int lock[4];
>  } spinlock_t;
>  #endif
> Index: include/asm-parisc/atomic.h
> ===================================================================
> RCS file: /var/cvs/linux-2.6/include/asm-parisc/atomic.h,v
> retrieving revision 1.5
> diff -u -p -r1.5 atomic.h
> --- include/asm-parisc/atomic.h	22 Sep 2003 14:28:12 -0000	1.5
> +++ include/asm-parisc/atomic.h	26 Nov 2003 07:00:12 -0000
> @@ -24,11 +24,18 @@
>  
>  extern spinlock_t __atomic_hash[ATOMIC_HASH_SIZE];
>  /* copied from <asm/spinlock.h> and modified */
> -#  define SPIN_LOCK(x) \
> -	do { while(__ldcw(&(x)->lock) == 0); } while(0)
> -	
> -#  define SPIN_UNLOCK(x) \
> -	do { (x)->lock = 1; } while(0)
> +static inline void SPIN_LOCK(spinlock_t *x)
> +{
> +	volatile unsigned int *a = __ldcw_align(x);
> +	while (__ldcw(a) == 0)
> +		while (*a == 0);
> +}
> +
> +static inline void SPIN_UNLOCK(spinlock_t *x)
> +{
> +	volatile unsigned int *a = __ldcw_align(x);
> +	*a = 1;
> +}
>  #else
>  #  define ATOMIC_HASH_SIZE 1
>  #  define ATOMIC_HASH(a)	(0)
> 
> 
> randolph

--------------030003000508050808040000
Content-Type: text/plain;
 name="system.h-align.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="system.h-align.diff"

--- system.h-rc	2003-11-30 00:21:55.000000000 +0100
+++ system.h	2003-11-30 00:26:17.000000000 +0100
@@ -138,12 +138,36 @@
 #define set_wmb(var, value)		do { var = value; wmb(); } while (0)
 
 
-/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
+/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.
+ *
+ * Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
+ * since it only has load-and-zero. Moreover, at least on some PA processors,
+ * the semaphore address has to be 16-byte aligned.
+ */
+#ifdef CONFIG_PA20
+/* 
+> From: "Jim Hull" <jim.hull of hp.com>
+> Delivery-date: Wed, 29 Jan 2003 13:57:05 -0500
+> I've attached a summary of the change, but basically, for PA 2.0, as
+> long as the ",CO" (coherent operation) completer is specified, then the
+> 16-byte alignment requirement for ldcw and ldcd is relaxed, and instead
+> they only require "natural" alignment (4-byte for ldcw, 8-byte for
+> ldcd).
+*/
+
+#define __ldcw(a) ({ \
+	unsigned __ret; \
+	__asm__ __volatile__("ldcw,co 0(%1),%0" : "=r" (__ret) : "r" (a)); \
+	__ret; \
+})
+#else
 #define __ldcw(a) ({ \
 	unsigned __ret; \
 	__asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a)); \
 	__ret; \
 })
+#endif
+
 
 /* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
    and GCC only guarantees 8-byte alignment for stack locals, we can't

--------------030003000508050808040000--



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Subject: Re: [parisc-linux] [RFC] rewrite kernel spinlock code to work better
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John David Anglin wrote:
>>+/* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
>>+   and GCC only guarantees 8-byte alignment for stack locals, we can't
>>+   be assured of 16-byte alignment for atomic lock data even if we
>>+   specify "__attribute ((aligned(16)))" in the type declaration.  So,
>>+   we use a struct containing an array of four ints for the atomic lock
>>+   type and dynamically select the 16-byte aligned int from the array
>>+   for the semaphore.  */
>>+#define __PA_LDCW_ALIGNMENT 16
>>+#define __ldcw_align(a) ({ \
>>+  unsigned long __ret = (unsigned long) a;                     		\
>>+  __ret = (__ret + __PA_LDCW_ALIGNMENT - 1) & ~(__PA_LDCW_ALIGNMENT - 1); \
>>+  (unsigned int *) __ret;                                               \
>>+})
> 
> 
> Change cast to "volatile unsigned int *".
> 
> 
>> typedef struct {
>>-	volatile unsigned int __attribute__((aligned(16))) lock;
>>+	volatile unsigned int lock[4];
>> } spinlock_t;
>> #endif
> 
> 
> Is the struct necessary?  For example,
> 
hmm i supposed that came from 2.4 struct:
typedef struct {
#ifdef CONFIG_PA20
	volatile unsigned int lock;
#else
	volatile unsigned int __attribute__((aligned(16))) lock;
#endif
#ifdef CONFIG_DEBUG_SPINLOCK
	volatile unsigned long owner_pc;
	volatile unsigned long owner_cpu;
#endif
} spinlock_t;

But I don't know yet if CONFIG_DEBUG_SPINLOCK is still foreseen for 2.6

Thanks,
	Joel



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Subject: [parisc-linux] spinlock 2.4 re-organise a la 2.6 [was: [RFC] rewrite kernel spinlock
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Hello,


btw here is attached a patch to re-organize spinlock stuff in 2.4 as in 2.6.

Can somebody help me to apply and test it before ci (not yet time to 
test and no access to cvs ci)

thanks in advance,
	Joel

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diff -Naur linux-2.4.23-rc5-pa17/include/asm-parisc/atomic.h linux-2.4.23-rc5-pa17-bp/include/asm-parisc/atomic.h
--- linux-2.4.23-rc5-pa17/include/asm-parisc/atomic.h	2003-11-29 14:11:51.000000000 +0100
+++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/atomic.h	2003-11-30 01:23:57.000000000 +0100
@@ -1,7 +1,6 @@
 #ifndef _ASM_PARISC_ATOMIC_H_
 #define _ASM_PARISC_ATOMIC_H_
 
-#include <linux/config.h>
 #include <asm/system.h>
 
 /* Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>.  */
@@ -193,4 +192,4 @@
 #define smp_mb__before_atomic_inc()	smp_mb()
 #define smp_mb__after_atomic_inc()	smp_mb()
 
-#endif
+#endif /* _ASM_PARISC_ATOMIC_H_ */
diff -Naur linux-2.4.23-rc5-pa17/include/asm-parisc/spinlock.h linux-2.4.23-rc5-pa17-bp/include/asm-parisc/spinlock.h
--- linux-2.4.23-rc5-pa17/include/asm-parisc/spinlock.h	2003-11-29 14:10:38.000000000 +0100
+++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/spinlock.h	2003-11-30 01:21:40.000000000 +0100
@@ -1,9 +1,55 @@
 #ifndef __ASM_SPINLOCK_H
 #define __ASM_SPINLOCK_H
 
-#include <asm/spinlock_t.h>		/* get spinlock primitives */
-#include <asm/psw.h>			/* local_* primitives need PSW_I */
-#include <asm/system_irqsave.h>		/* get local_* primitives */
+#include <asm/system.h>
+
+#ifndef CONFIG_DEBUG_SPINLOCK
+#define SPIN_LOCK_UNLOCKED_INIT { 1 }
+#define SPIN_LOCK_UNLOCKED (spinlock_t) SPIN_LOCK_UNLOCKED_INIT
+
+/* Define 6 spinlock primitives that don't depend on anything else. */
+
+#define spin_lock_init(x)       do { (x)->lock = 1; } while(0)
+#define spin_is_locked(x)       ((x)->lock == 0)
+#define spin_trylock(x)		(__ldcw(&(x)->lock) != 0)
+ 
+/* 
+ * PA2.0 is not strongly ordered.  PA1.X is strongly ordered.
+ * ldcw enforces ordering and we need to make sure ordering is
+ * enforced on the unlock too.
+ * "stw,ma" with Zero index is an alias for "stw,o".
+ * But PA 1.x can assemble the "stw,ma" while it doesn't know about "stw,o".
+ * And PA 2.0 will generate the right insn using either form.
+ * Thanks to John David Anglin for this cute trick.
+ *
+ * Writing this with asm also ensures that the unlock doesn't
+ * get reordered
+ */
+#define spin_unlock(x) \
+	__asm__ __volatile__ ("stw,ma  %%sp,0(%0)" : : "r" (&(x)->lock) : "memory" )
+
+#define spin_unlock_wait(x)     do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
+
+#define spin_lock(x) do { \
+	while (__ldcw (&(x)->lock) == 0) \
+		while ((x)->lock == 0) ; \
+} while (0)
+
+#else /* ! CONFIG_DEBUG_SPINLOCK */
+
+#define SPIN_LOCK_UNLOCKED_INIT { 1, 0L, 0L }
+#define SPIN_LOCK_UNLOCKED (spinlock_t) SPIN_LOCK_UNLOCKED_INIT
+
+/* Define 6 spinlock primitives that don't depend on anything else. */
+
+#define spin_lock_init(x)       do { (x)->lock = 1; (x)->owner_cpu = 0; (x)->owner_pc = 0; } while(0)
+#define spin_is_locked(x)       ((x)->lock == 0)
+void spin_lock(spinlock_t *lock);
+int spin_trylock(spinlock_t *lock);
+void spin_unlock(spinlock_t *lock);
+#define spin_unlock_wait(x)     do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
+
+#endif /* ! CONFIG_DEBUG_SPINLOCK */
 
 /*
  * Read-write spinlocks, allowing multiple readers
diff -Naur linux-2.4.23-rc5-pa17/include/asm-parisc/spinlock_t.h linux-2.4.23-rc5-pa17-bp/include/asm-parisc/spinlock_t.h
--- linux-2.4.23-rc5-pa17/include/asm-parisc/spinlock_t.h	2003-11-29 16:13:04.000000000 +0100
+++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/spinlock_t.h	1970-01-01 01:00:00.000000000 +0100
@@ -1,97 +0,0 @@
-#ifndef __PARISC_SPINLOCK_T_H
-#define __PARISC_SPINLOCK_T_H
-
-/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.
- *
- * Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
- * since it only has load-and-zero.
- */
-#ifdef CONFIG_PA20
-/* 
-> From: "Jim Hull" <jim.hull of hp.com>
-> Delivery-date: Wed, 29 Jan 2003 13:57:05 -0500
-> I've attached a summary of the change, but basically, for PA 2.0, as
-> long as the ",CO" (coherent operation) completer is specified, then the
-> 16-byte alignment requirement for ldcw and ldcd is relaxed, and instead
-> they only require "natural" alignment (4-byte for ldcw, 8-byte for
-> ldcd).
-*/
-
-#define __ldcw(a) ({ \
-	unsigned __ret; \
-	__asm__ __volatile__("ldcw,co 0(%1),%0" : "=r" (__ret) : "r" (a)); \
-	__ret; \
-})
-#else
-#define __ldcw(a) ({ \
-	unsigned __ret; \
-	__asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a)); \
-	__ret; \
-})
-#endif
-
-/*
- * Your basic SMP spinlocks, allowing only a single CPU anywhere
- */
-
-typedef struct {
-#ifdef CONFIG_PA20
-	volatile unsigned int lock;
-#else
-	volatile unsigned int __attribute__((aligned(16))) lock;
-#endif
-#ifdef CONFIG_DEBUG_SPINLOCK
-	volatile unsigned long owner_pc;
-	volatile unsigned long owner_cpu;
-#endif
-} spinlock_t;
-
-#ifndef CONFIG_DEBUG_SPINLOCK
-#define SPIN_LOCK_UNLOCKED_INIT { 1 }
-#define SPIN_LOCK_UNLOCKED (spinlock_t) SPIN_LOCK_UNLOCKED_INIT
-
-/* Define 6 spinlock primitives that don't depend on anything else. */
-
-#define spin_lock_init(x)       do { (x)->lock = 1; } while(0)
-#define spin_is_locked(x)       ((x)->lock == 0)
-#define spin_trylock(x)		(__ldcw(&(x)->lock) != 0)
- 
-/* 
- * PA2.0 is not strongly ordered.  PA1.X is strongly ordered.
- * ldcw enforces ordering and we need to make sure ordering is
- * enforced on the unlock too.
- * "stw,ma" with Zero index is an alias for "stw,o".
- * But PA 1.x can assemble the "stw,ma" while it doesn't know about "stw,o".
- * And PA 2.0 will generate the right insn using either form.
- * Thanks to John David Anglin for this cute trick.
- *
- * Writing this with asm also ensures that the unlock doesn't
- * get reordered
- */
-#define spin_unlock(x) \
-	__asm__ __volatile__ ("stw,ma  %%sp,0(%0)" : : "r" (&(x)->lock) : "memory" )
-
-#define spin_unlock_wait(x)     do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
-
-#define spin_lock(x) do { \
-	while (__ldcw (&(x)->lock) == 0) \
-		while ((x)->lock == 0) ; \
-} while (0)
-
-#else
-
-#define SPIN_LOCK_UNLOCKED_INIT { 1, 0L, 0L }
-#define SPIN_LOCK_UNLOCKED (spinlock_t) SPIN_LOCK_UNLOCKED_INIT
-
-/* Define 6 spinlock primitives that don't depend on anything else. */
-
-#define spin_lock_init(x)       do { (x)->lock = 1; (x)->owner_cpu = 0; (x)->owner_pc = 0; } while(0)
-#define spin_is_locked(x)       ((x)->lock == 0)
-void spin_lock(spinlock_t *lock);
-int spin_trylock(spinlock_t *lock);
-void spin_unlock(spinlock_t *lock);
-#define spin_unlock_wait(x)     do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
-
-#endif
-
-#endif /* __PARISC_SPINLOCK_T_H */
diff -Naur linux-2.4.23-rc5-pa17/include/asm-parisc/system.h linux-2.4.23-rc5-pa17-bp/include/asm-parisc/system.h
--- linux-2.4.23-rc5-pa17/include/asm-parisc/system.h	2003-11-29 14:11:16.000000000 +0100
+++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/system.h	2003-11-30 01:34:35.000000000 +0100
@@ -5,10 +5,6 @@
 #include <asm/psw.h>
 #include <asm/system_irqsave.h>
 
-#ifdef CONFIG_SMP
-#include <asm/spinlock_t.h>
-#endif
-
 /* The program status word as bitfields.  */
 struct pa_psw {
 	unsigned int y:1;
@@ -69,7 +65,7 @@
 #define save_and_cli(x) do { save_flags(x); cli(); } while(0);
 #define save_and_sti(x) do { save_flags(x); sti(); } while(0);
 
-#else
+#else /* CONFIG_SMP */
 
 #define cli() __cli()
 #define sti() __sti()
@@ -78,7 +74,7 @@
 #define save_and_cli(x) __save_and_cli(x)
 #define save_and_sti(x) __save_and_sti(x)
 
-#endif
+#endif /* CONFIG_SMP */
 
 
 #define mfctl(reg)	({		\
@@ -147,4 +143,49 @@
 
 #define set_mb(var, value) do { var = value; mb(); } while (0)
 
+/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.
+ *
+ * Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
+ * since it only has load-and-zero.
+ */
+#ifdef CONFIG_PA20
+/* 
+> From: "Jim Hull" <jim.hull of hp.com>
+> Delivery-date: Wed, 29 Jan 2003 13:57:05 -0500
+> I've attached a summary of the change, but basically, for PA 2.0, as
+> long as the ",CO" (coherent operation) completer is specified, then the
+> 16-byte alignment requirement for ldcw and ldcd is relaxed, and instead
+> they only require "natural" alignment (4-byte for ldcw, 8-byte for
+> ldcd).
+*/
+
+#define __ldcw(a) ({ \
+	unsigned __ret; \
+	__asm__ __volatile__("ldcw,co 0(%1),%0" : "=r" (__ret) : "r" (a)); \
+	__ret; \
+})
+#else /* CONFIG_PA20 */
+#define __ldcw(a) ({ \
+	unsigned __ret; \
+	__asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a)); \
+	__ret; \
+})
+#endif /* CONFIG_PA20 */
+
+/*
+ * Your basic SMP spinlocks, allowing only a single CPU anywhere
+ */
+
+typedef struct {
+#ifdef CONFIG_PA20
+	volatile unsigned int lock;
+#else
+	volatile unsigned int __attribute__((aligned(16))) lock;
+#endif
+#ifdef CONFIG_DEBUG_SPINLOCK
+	volatile unsigned long owner_pc;
+	volatile unsigned long owner_cpu;
 #endif
+} spinlock_t;
+
+#endif /* __PARISC_SYSTEM_H */

--------------030508070305070209090604--



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Subject: Re: [parisc-linux] [RFC] rewrite kernel spinlock code to work better
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:)

a trivial atomic.h patch:
---------><---------
--- atomic.h.orig       2003-11-30 01:47:49.000000000 +0100
+++ atomic.h    2003-11-30 01:48:01.000000000 +0100
@@ -1,7 +1,6 @@
  #ifndef _ASM_PARISC_ATOMIC_H_
  #define _ASM_PARISC_ATOMIC_H_

-#include <linux/config.h>
  #include <asm/system.h>

  /* Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>.  */
---------><---------

hth,
	J.



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On Sun, Nov 30, 2003 at 12:43:51AM +0000, Joel Soete wrote:
...
> +++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/atomic.h	2003-11-30 01:23:57.000000000 +0100
> @@ -1,7 +1,6 @@
>  #ifndef _ASM_PARISC_ATOMIC_H_
>  #define _ASM_PARISC_ATOMIC_H_
>  
> -#include <linux/config.h>
>  #include <asm/system.h>

Joel,
This is wrong - atomic.h uses CONFIG_SMP and thus is
required to include config.h.

grant


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 rewrite kernel spinlock code to work better with gcc]
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Grant Grundler wrote:
> On Sun, Nov 30, 2003 at 12:43:51AM +0000, Joel Soete wrote:
> ...
> 
>>+++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/atomic.h	2003-11-30 01:23:57.000000000 +0100
>>@@ -1,7 +1,6 @@
>> #ifndef _ASM_PARISC_ATOMIC_H_
>> #define _ASM_PARISC_ATOMIC_H_
>> 
>>-#include <linux/config.h>
>> #include <asm/system.h>
> 
> 
> Joel,
> This is wrong - atomic.h uses CONFIG_SMP and thus is
> required to include config.h.
> 
I trust you.
Just a small explanation: i was confused by the begining of asm/system.h 
which is:
---------><---------
#ifndef __PARISC_SYSTEM_H
#define __PARISC_SYSTEM_H

#include <linux/config.h>
#include <asm/psw.h>

[...]
---------><---------

so I trusted that asm/system.h firstly include  <linux/config.h>.
So there should be something wrong elsewhere but don't yet find.

Sorry for my bad understand,

	Joel



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 rewrite kernel spinlock code to work better with gcc]
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Yes forgive that try, it breaks something in 'make dep' I presume 
because make vmlinux failled oribly:

gcc -D__KERNEL__ -I/Debian-apt/SRC/Test/linux-2.4.23-rc5-pa17/include 
-Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing 
-fno-common -D__linux__ -pipe -fno-strength-reduce -mno-space-regs 
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1 
-mschedule=7100   -DKBUILD_BASENAME=main -c -o init/main.o init/main.c
In file included from 
/Debian-apt/SRC/Test/linux-2.4.23-rc5-pa17/include/linux/wait.h:16,
                  from 
/Debian-apt/SRC/Test/linux-2.4.23-rc5-pa17/include/linux/fs.h:12,
                  from 
/Debian-apt/SRC/Test/linux-2.4.23-rc5-pa17/include/linux/capability.h:17,
                  from 
/Debian-apt/SRC/Test/linux-2.4.23-rc5-pa17/include/linux/binfmts.h:5,
                  from 
/Debian-apt/SRC/Test/linux-2.4.23-rc5-pa17/include/linux/sched.h:9,
                  from 
/Debian-apt/SRC/Test/linux-2.4.23-rc5-pa17/include/linux/mm.h:4,
                  from 
/Debian-apt/SRC/Test/linux-2.4.23-rc5-pa17/include/linux/slab.h:14,
                  from 
/Debian-apt/SRC/Test/linux-2.4.23-rc5-pa17/include/linux/proc_fs.h:5,
                  from init/main.c:15:
/Debian-apt/SRC/Test/linux-2.4.23-rc5-pa17/include/linux/spinlock.h:75: 
error: conflicting types for `spinlock_t'
/Debian-apt/SRC/Test/linux-2.4.23-rc5-pa17/include/asm/system.h:189: 
error: previous declaration of `spinlock_t'
make: *** [init/main.o] Error 1

My bad, sorry,
	Joel

Grant Grundler wrote:
> On Sun, Nov 30, 2003 at 12:43:51AM +0000, Joel Soete wrote:
> ...
> 
>>+++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/atomic.h	2003-11-30 01:23:57.000000000 +0100
>>@@ -1,7 +1,6 @@
>> #ifndef _ASM_PARISC_ATOMIC_H_
>> #define _ASM_PARISC_ATOMIC_H_
>> 
>>-#include <linux/config.h>
>> #include <asm/system.h>
> 
> 
> Joel,
> This is wrong - atomic.h uses CONFIG_SMP and thus is
> required to include config.h.
> 
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] spinlock 2.4 re-organise a la 2.6 [was: [RFC]
 rewrite kernel spinlock code to work better with gcc]
Date: Sun, 30 Nov 2003 16:31:49 +0000
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Grant Grundler wrote:
> On Sun, Nov 30, 2003 at 12:43:51AM +0000, Joel Soete wrote:
> ...
> 
>>+++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/atomic.h	2003-11-30 01:23:57.000000000 +0100
>>@@ -1,7 +1,6 @@
>> #ifndef _ASM_PARISC_ATOMIC_H_
>> #define _ASM_PARISC_ATOMIC_H_
>> 
>>-#include <linux/config.h>
>> #include <asm/system.h>
> 
> 
> Joel,
> This is wrong - atomic.h uses CONFIG_SMP and thus is
> required to include config.h.
> 
No, i think it is right but I forgot to embrace spinlock_t declaration 
with "#ifdef CONFIG_SMP ...#endif" in system.h. Done in the new attched 
patch (tested and run fine on c100 (32bit up) with kernel up and smp)
My bad in previous test: forgot make distclean ; make mrproper (to be sure).

Still have to test in 64bit up (no means to test in smp neither 32 or 64 
bit :( ).

If you find some interest can you ci (I would like to test Randolph 
patch on n4k just to be sure).

Thanks for help,
	Joel

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diff -Naur linux-2.4.23-rc5-pa17/include/asm-parisc/atomic.h linux-2.4.23-rc5-pa17-bp/include/asm-parisc/atomic.h
--- linux-2.4.23-rc5-pa17/include/asm-parisc/atomic.h	2003-11-29 14:11:51.000000000 +0100
+++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/atomic.h	2003-11-30 17:13:58.000000000 +0100
@@ -1,7 +1,6 @@
 #ifndef _ASM_PARISC_ATOMIC_H_
 #define _ASM_PARISC_ATOMIC_H_
 
-#include <linux/config.h>
 #include <asm/system.h>
 
 /* Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>.  */
@@ -14,7 +13,6 @@
  * have to write any serious assembly.   prumpf
  */
 #ifdef CONFIG_SMP
-#include <asm/spinlock_t.h>
 
 /* Use an array of spinlocks for our atomic_ts.
 ** Hash function to index into a different SPINLOCK.
@@ -193,4 +191,4 @@
 #define smp_mb__before_atomic_inc()	smp_mb()
 #define smp_mb__after_atomic_inc()	smp_mb()
 
-#endif
+#endif /* _ASM_PARISC_ATOMIC_H_ */
diff -Naur linux-2.4.23-rc5-pa17/include/asm-parisc/processor.h linux-2.4.23-rc5-pa17-bp/include/asm-parisc/processor.h
--- linux-2.4.23-rc5-pa17/include/asm-parisc/processor.h	2003-11-30 02:11:17.000000000 +0100
+++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/processor.h	2003-11-30 02:12:04.000000000 +0100
@@ -18,9 +18,6 @@
 #include <asm/ptrace.h>
 #include <asm/types.h>
 #include <asm/system.h>
-#ifdef CONFIG_SMP
-#include <asm/spinlock_t.h>
-#endif
 #endif /* __ASSEMBLY__ */
 
 /*
diff -Naur linux-2.4.23-rc5-pa17/include/asm-parisc/spinlock.h linux-2.4.23-rc5-pa17-bp/include/asm-parisc/spinlock.h
--- linux-2.4.23-rc5-pa17/include/asm-parisc/spinlock.h	2003-11-29 14:10:38.000000000 +0100
+++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/spinlock.h	2003-11-30 01:21:40.000000000 +0100
@@ -1,9 +1,55 @@
 #ifndef __ASM_SPINLOCK_H
 #define __ASM_SPINLOCK_H
 
-#include <asm/spinlock_t.h>		/* get spinlock primitives */
-#include <asm/psw.h>			/* local_* primitives need PSW_I */
-#include <asm/system_irqsave.h>		/* get local_* primitives */
+#include <asm/system.h>
+
+#ifndef CONFIG_DEBUG_SPINLOCK
+#define SPIN_LOCK_UNLOCKED_INIT { 1 }
+#define SPIN_LOCK_UNLOCKED (spinlock_t) SPIN_LOCK_UNLOCKED_INIT
+
+/* Define 6 spinlock primitives that don't depend on anything else. */
+
+#define spin_lock_init(x)       do { (x)->lock = 1; } while(0)
+#define spin_is_locked(x)       ((x)->lock == 0)
+#define spin_trylock(x)		(__ldcw(&(x)->lock) != 0)
+ 
+/* 
+ * PA2.0 is not strongly ordered.  PA1.X is strongly ordered.
+ * ldcw enforces ordering and we need to make sure ordering is
+ * enforced on the unlock too.
+ * "stw,ma" with Zero index is an alias for "stw,o".
+ * But PA 1.x can assemble the "stw,ma" while it doesn't know about "stw,o".
+ * And PA 2.0 will generate the right insn using either form.
+ * Thanks to John David Anglin for this cute trick.
+ *
+ * Writing this with asm also ensures that the unlock doesn't
+ * get reordered
+ */
+#define spin_unlock(x) \
+	__asm__ __volatile__ ("stw,ma  %%sp,0(%0)" : : "r" (&(x)->lock) : "memory" )
+
+#define spin_unlock_wait(x)     do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
+
+#define spin_lock(x) do { \
+	while (__ldcw (&(x)->lock) == 0) \
+		while ((x)->lock == 0) ; \
+} while (0)
+
+#else /* ! CONFIG_DEBUG_SPINLOCK */
+
+#define SPIN_LOCK_UNLOCKED_INIT { 1, 0L, 0L }
+#define SPIN_LOCK_UNLOCKED (spinlock_t) SPIN_LOCK_UNLOCKED_INIT
+
+/* Define 6 spinlock primitives that don't depend on anything else. */
+
+#define spin_lock_init(x)       do { (x)->lock = 1; (x)->owner_cpu = 0; (x)->owner_pc = 0; } while(0)
+#define spin_is_locked(x)       ((x)->lock == 0)
+void spin_lock(spinlock_t *lock);
+int spin_trylock(spinlock_t *lock);
+void spin_unlock(spinlock_t *lock);
+#define spin_unlock_wait(x)     do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
+
+#endif /* ! CONFIG_DEBUG_SPINLOCK */
 
 /*
  * Read-write spinlocks, allowing multiple readers
diff -Naur linux-2.4.23-rc5-pa17/include/asm-parisc/spinlock_t.h linux-2.4.23-rc5-pa17-bp/include/asm-parisc/spinlock_t.h
--- linux-2.4.23-rc5-pa17/include/asm-parisc/spinlock_t.h	2003-11-29 16:13:04.000000000 +0100
+++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/spinlock_t.h	1970-01-01 01:00:00.000000000 +0100
@@ -1,97 +0,0 @@
-#ifndef __PARISC_SPINLOCK_T_H
-#define __PARISC_SPINLOCK_T_H
-
-/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.
- *
- * Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
- * since it only has load-and-zero.
- */
-#ifdef CONFIG_PA20
-/* 
-> From: "Jim Hull" <jim.hull of hp.com>
-> Delivery-date: Wed, 29 Jan 2003 13:57:05 -0500
-> I've attached a summary of the change, but basically, for PA 2.0, as
-> long as the ",CO" (coherent operation) completer is specified, then the
-> 16-byte alignment requirement for ldcw and ldcd is relaxed, and instead
-> they only require "natural" alignment (4-byte for ldcw, 8-byte for
-> ldcd).
-*/
-
-#define __ldcw(a) ({ \
-	unsigned __ret; \
-	__asm__ __volatile__("ldcw,co 0(%1),%0" : "=r" (__ret) : "r" (a)); \
-	__ret; \
-})
-#else
-#define __ldcw(a) ({ \
-	unsigned __ret; \
-	__asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a)); \
-	__ret; \
-})
-#endif
-
-/*
- * Your basic SMP spinlocks, allowing only a single CPU anywhere
- */
-
-typedef struct {
-#ifdef CONFIG_PA20
-	volatile unsigned int lock;
-#else
-	volatile unsigned int __attribute__((aligned(16))) lock;
-#endif
-#ifdef CONFIG_DEBUG_SPINLOCK
-	volatile unsigned long owner_pc;
-	volatile unsigned long owner_cpu;
-#endif
-} spinlock_t;
-
-#ifndef CONFIG_DEBUG_SPINLOCK
-#define SPIN_LOCK_UNLOCKED_INIT { 1 }
-#define SPIN_LOCK_UNLOCKED (spinlock_t) SPIN_LOCK_UNLOCKED_INIT
-
-/* Define 6 spinlock primitives that don't depend on anything else. */
-
-#define spin_lock_init(x)       do { (x)->lock = 1; } while(0)
-#define spin_is_locked(x)       ((x)->lock == 0)
-#define spin_trylock(x)		(__ldcw(&(x)->lock) != 0)
- 
-/* 
- * PA2.0 is not strongly ordered.  PA1.X is strongly ordered.
- * ldcw enforces ordering and we need to make sure ordering is
- * enforced on the unlock too.
- * "stw,ma" with Zero index is an alias for "stw,o".
- * But PA 1.x can assemble the "stw,ma" while it doesn't know about "stw,o".
- * And PA 2.0 will generate the right insn using either form.
- * Thanks to John David Anglin for this cute trick.
- *
- * Writing this with asm also ensures that the unlock doesn't
- * get reordered
- */
-#define spin_unlock(x) \
-	__asm__ __volatile__ ("stw,ma  %%sp,0(%0)" : : "r" (&(x)->lock) : "memory" )
-
-#define spin_unlock_wait(x)     do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
-
-#define spin_lock(x) do { \
-	while (__ldcw (&(x)->lock) == 0) \
-		while ((x)->lock == 0) ; \
-} while (0)
-
-#else
-
-#define SPIN_LOCK_UNLOCKED_INIT { 1, 0L, 0L }
-#define SPIN_LOCK_UNLOCKED (spinlock_t) SPIN_LOCK_UNLOCKED_INIT
-
-/* Define 6 spinlock primitives that don't depend on anything else. */
-
-#define spin_lock_init(x)       do { (x)->lock = 1; (x)->owner_cpu = 0; (x)->owner_pc = 0; } while(0)
-#define spin_is_locked(x)       ((x)->lock == 0)
-void spin_lock(spinlock_t *lock);
-int spin_trylock(spinlock_t *lock);
-void spin_unlock(spinlock_t *lock);
-#define spin_unlock_wait(x)     do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
-
-#endif
-
-#endif /* __PARISC_SPINLOCK_T_H */
diff -Naur linux-2.4.23-rc5-pa17/include/asm-parisc/system.h linux-2.4.23-rc5-pa17-bp/include/asm-parisc/system.h
--- linux-2.4.23-rc5-pa17/include/asm-parisc/system.h	2003-11-29 14:11:16.000000000 +0100
+++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/system.h	2003-11-30 17:12:37.000000000 +0100
@@ -5,10 +5,6 @@
 #include <asm/psw.h>
 #include <asm/system_irqsave.h>
 
-#ifdef CONFIG_SMP
-#include <asm/spinlock_t.h>
-#endif
-
 /* The program status word as bitfields.  */
 struct pa_psw {
 	unsigned int y:1;
@@ -69,7 +65,7 @@
 #define save_and_cli(x) do { save_flags(x); cli(); } while(0);
 #define save_and_sti(x) do { save_flags(x); sti(); } while(0);
 
-#else
+#else /* CONFIG_SMP */
 
 #define cli() __cli()
 #define sti() __sti()
@@ -78,7 +74,7 @@
 #define save_and_cli(x) __save_and_cli(x)
 #define save_and_sti(x) __save_and_sti(x)
 
-#endif
+#endif /* CONFIG_SMP */
 
 
 #define mfctl(reg)	({		\
@@ -147,4 +143,51 @@
 
 #define set_mb(var, value) do { var = value; mb(); } while (0)
 
+/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.
+ *
+ * Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
+ * since it only has load-and-zero.
+ */
+#ifdef CONFIG_PA20
+/* 
+> From: "Jim Hull" <jim.hull of hp.com>
+> Delivery-date: Wed, 29 Jan 2003 13:57:05 -0500
+> I've attached a summary of the change, but basically, for PA 2.0, as
+> long as the ",CO" (coherent operation) completer is specified, then the
+> 16-byte alignment requirement for ldcw and ldcd is relaxed, and instead
+> they only require "natural" alignment (4-byte for ldcw, 8-byte for
+> ldcd).
+*/
+
+#define __ldcw(a) ({ \
+	unsigned __ret; \
+	__asm__ __volatile__("ldcw,co 0(%1),%0" : "=r" (__ret) : "r" (a)); \
+	__ret; \
+})
+#else /* CONFIG_PA20 */
+#define __ldcw(a) ({ \
+	unsigned __ret; \
+	__asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a)); \
+	__ret; \
+})
+#endif /* CONFIG_PA20 */
+
+#ifdef CONFIG_SMP
+/*
+ * Your basic SMP spinlocks, allowing only a single CPU anywhere
+ */
+
+typedef struct {
+#ifdef CONFIG_PA20
+	volatile unsigned int lock;
+#else
+	volatile unsigned int __attribute__((aligned(16))) lock;
 #endif
+#ifdef CONFIG_DEBUG_SPINLOCK
+	volatile unsigned long owner_pc;
+	volatile unsigned long owner_cpu;
+#endif
+} spinlock_t;
+#endif /* CONFIG_SMP */
+
+#endif /* __PARISC_SYSTEM_H */

--------------050202040002070308050009--



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need help for replace the hotplug disk by hdd u-wide but the system detect a 
fatal error with and without terminaison

please help me

philos

hp 9000 D220 132 Mhz



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<HTML><FONT FACE=3Darial,helvetica><FONT  SIZE=3D2 FAMILY=3D"SANSSERIF" FACE=
=3D"Arial" LANG=3D"1">need help for replace the hotplug disk by hdd u-wide b=
ut the system detect a fatal error with and without terminaison<BR>
<BR>
please help me<BR>
<BR>
philos<BR>
<BR>
hp 9000 D220 132 Mhz<BR>
<BR>
<BR>
</FONT></HTML>
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Hi Philos,

Please read first <http://parisc-linux.org/faq/kernelbug-howto.html>

Philos666@aol.com wrote:
> need help for replace the hotplug disk by hdd u-wide but the system detect a 
> fatal error with and without terminaison
> 
In the mean time, could you try to test your new disk on your d220 with 
hp diagtools (available on support+ cd)?

Could you also post your last dmesg file (to get more details on your 
scsi controler) (iirc d220 could be supplied with different scsi 
controler and would it support new u-wide disk?)

hth,
	Joel

> please help me
> 
> philos
> 
> hp 9000 D220 132 Mhz
> 
> 
> 



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Philos666@aol.com wrote:
> what channel irc on what server ?
Sorry could help for such ( my bad I never get enough time to find one)
> i haven't the HP CD diagnotic
> i not known if it have a different terminaison for the u-wide hhd ans fast 
> wide hhd ?

Yes, I think you point out the pb. iirc there are a big difference 
between uw and fw terminator (defferent impedence). But I don't remember 
how is it possible (that is why I put back ml in cc) to use fw and uw 
disk on a same bus (ie connected to the same controler) (iirc i read a 
thread on this ml about the subject but I have to look for).
mm (alone on a fw controler), i think that it is possible to configure 
(with a jumper) some disk model as 'self terminated'.

I hope some better than I in scsi field could help you more ;)

Joel



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Subject: Re: [parisc-linux] spinlock 2.4 re-organise a la 2.6 [was: [RFC] rewrite kernel spinlock code to work better with gcc]
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On Sun, Nov 30, 2003 at 04:31:49PM +0000, Joel Soete wrote:
> No, i think it is right but I forgot to embrace spinlock_t declaration 
> with "#ifdef CONFIG_SMP ...#endif" in system.h. Done in the new attched 
> patch (tested and run fine on c100 (32bit up) with kernel up and smp)
> My bad in previous test: forgot make distclean ; make mrproper (to be sure).

Use of "make distclean" means you don't have the dependencies correct.
ie whereever "ifdef CONFIG_*" is used, linux/config.h needs to be included.

> If you find some interest can you ci (I would like to test Randolph 
> patch on n4k just to be sure).

I don't. I have a basic problem with this patch.

...
> -#include <asm/spinlock_t.h>
...
> diff -Naur linux-2.4.23-rc5-pa17/include/asm-parisc/spinlock_t.h linux-2.4.23-rc5-pa17-bp/include/asm-parisc/spinlock_t.h
> --- linux-2.4.23-rc5-pa17/include/asm-parisc/spinlock_t.h	2003-11-29 16:13:04.000000000 +0100
> +++ linux-2.4.23-rc5-pa17-bp/include/asm-parisc/spinlock_t.h	1970-01-01 01:00:00.000000000 +0100
> @@ -1,97 +0,0 @@
> -#ifndef __PARISC_SPINLOCK_T_H
> -#define __PARISC_SPINLOCK_T_H
...

Why delete spinlock_t.h?

I added spinlock_t.h to resolve the circular inter-dependency between
asm/system.h, asm/bitops.h, and asm/spinlock.h.  spinlock_t.h depends
on nothing and defines spinlock primitives used by the others.

grant


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>I added spinlock_t.h to resolve the circular inter-dependency between
>asm/system.h, asm/bitops.h, and asm/spinlock.h.  spinlock_t.h depends
>on nothing and defines spinlock primitives used by the others.

I see (forgive)

Joel


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Subject: [parisc-linux] FINANCIAL Independence Is Calling You...cais
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Subject: RE: [parisc-linux] [RFC] rewrite kernel spinlock code to work better with gcc
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Hi Randolph,

(Just in case it would help) I backport your patch in 2.4 (just because the
only system on which I can test it is a b2k on which 2.6 doesn't boot yet)
and build a smp 64bit kernel which boot and run fine (rebuild another kernel)
on this b2k:)

Joel

ps: I don't yet investigate Dave idea :(

>-- Original Message --
>From: Randolph Chung <randolph@tausq.org>
>To: parisc-linux@lists.parisc-linux.org
>Reply-To: Randolph Chung <randolph@tausq.org>
>Date: Tue, 25 Nov 2003 23:07:14 -0800
>Subject: [parisc-linux] [RFC] rewrite kernel spinlock code to work better
>with gcc
>
>
>This has been discussed in bits and pieces several times on the list,
let me summarize:

- On at least some PA processors, addresses passed to ldcw() must be
16-byte aligned
- gcc doesn't guarantee alignment of automatic variables even if the
str
>cture is marked with aligned(16). In gcc-3.0.x, this worked most of
the time because stack alignment was set to 128 bits, but this caused
various problems so the change was reverted in later revisions of gcc.

In glibc, Carlos and Dave implemented 
>auto-aligning" locks by using an
array of 4 ints and doing ldcw on the 16-byte aligned word inside that
array. This makes the code work all the time irregardless of how it is
placed in memory. Here's a patch that implements similar locking
mechanis
>s for the kernel. It compiles, but as SMP still doesn't boot
on 2.6, i haven't really tried to run it. 

there is some concern this will make structures bigger, but at least 
in some situations this actually makes them smaller. e.g.
if you have:

>
struct { int x; spinlock_t lock; };

with the current scheme (using the aligned(16) attribute) the structure
is 32 bytes. with the new scheme it is only 20 bytes. actually i don't
think there are any cases where it will make any structures bigger 
>
than they are now..... 

Any comments?

Index: include/asm-parisc/spinlock.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/spinlock.h,v
retrieving revision 1.1
diff -u -p -r
>.1 spinlock.h
--- include/asm-parisc/spinlock.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/spinlock.h	26 Nov 2003 07:00:12 -0000
@@ -4,35 +4,42 @@
 #include <asm/system.h>
 
 /* Note that PA-RISC has to use `1' to mean unlocked and `0'
>to mean locked
- * since it only has load-and-zero.
+ * since it only has load-and-zero. Moreover, at least on some PA processors,
+ * the semaphore address has to be 16-byte aligned.
  */
 
 #undef SPIN_LOCK_UNLOCKED
-#define SPIN_LOCK_UNLOCKED
>(spinlock_t) { 1 }
+#define SPIN_LOCK_UNLOCKED (spinlock_t) { { 1, 1, 1, 1 } }
 
-#define spin_lock_init(x)	do { (x)->lock = 1; } while(0)
+#define spin_lock_init(x)	do { *(x) = SPIN_LOCK_UNLOCKED; } while(0)
 
-#define spin_is_locked(x) ((x)->lo
>k == 0)
-
-#define spin_unlock_wait(x)	do { barrier(); } while(((volatile spinlock_t
*)(x))->lock == 0)
-
-#if 1
-#define _raw_spin_lock(x) do { \
-	while (__ldcw (&(x)->lock) == 0) \
-		while (((x)->lock) == 0) ; } while (0)
-
-#else
-#defin
> _raw_spin_lock(x) \
-	do { while(__ldcw(&(x)->lock) == 0); } while(0)
-#endif
+static inline int spin_is_locked(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	return *a == 0;
+}
+
+#define spin_unlock_wait(x)	do { barrier()
> } while(spin_is_locked(x))
+
+static inline void _raw_spin_lock(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	while (__ldcw(a) == 0)
+		while (*a == 0);
+}
+
+static inline void _raw_spin_unlock(spinlock_t *x)
+{
+	volat
>le unsigned int *a = __ldcw_align(x);
+	*a = 1;
+}
+
+static inline int _raw_spin_trylock(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	return __ldcw(a) != 0;
+}
 	
-#define _raw_spin_unlock(x) \
-	do { (x)->lock = 1; } w
>ile(0)
-
-#define _raw_spin_trylock(x) (__ldcw(&(x)->lock) != 0)
-
-
-
 /*
  * Read-write spinlocks, allowing multiple readers
  * but only one writer.
@@ -42,7 +49,7 @@ typedef struct {
 	volatile int counter;
 } rwlock_t;
 
-#define RW_L
>CK_UNLOCKED (rwlock_t) { {1}, 0 }
+#define RW_LOCK_UNLOCKED (rwlock_t) { { { 1, 1, 1, 1 } }, 0 }
 
 #define rwlock_init(lp)	do { *(lp) = RW_LOCK_UNLOCKED; } while (0)
 
Index: include/asm-parisc/system.h
==========================================
>========================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/system.h,v
retrieving revision 1.1
diff -u -p -r1.1 system.h
--- include/asm-parisc/system.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/system.h	26 Nov 2003 07:00:
>2 -0000
@@ -145,6 +145,19 @@ static inline void set_eiem(unsigned lon
 	__ret; \
 })
 
+/* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
+   and GCC only guarantees 8-byte alignment for stack locals, we can't
+   be assure
> of 16-byte alignment for atomic lock data even if we
+   specify "__attribute ((aligned(16)))" in the type declaration.  So,
+   we use a struct containing an array of four ints for the atomic lock
+   type and dynamically select the 16-byte aligne
> int from the array
+   for the semaphore.  */
+#define __PA_LDCW_ALIGNMENT 16
+#define __ldcw_align(a) ({ \
+  unsigned long __ret = (unsigned long) a;                     		\
+  __ret = (__ret + __PA_LDCW_ALIGNMENT - 1) & ~(__PA_LDCW_ALIGNMENT -
>1); \
+  (unsigned int *) __ret;                                              
\
+})
 
 #ifdef CONFIG_SMP
 /*
@@ -152,7 +165,7 @@ static inline void set_eiem(unsigned lon
  */
 
 typedef struct {
-	volatile unsigned int __attribute__((aligned
>16))) lock;
+	volatile unsigned int lock[4];
 } spinlock_t;
 #endif
Index: include/asm-parisc/atomic.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/atomic.h,v
retrieving revi
>ion 1.5
diff -u -p -r1.5 atomic.h
--- include/asm-parisc/atomic.h	22 Sep 2003 14:28:12 -0000	1.5
+++ include/asm-parisc/atomic.h	26 Nov 2003 07:00:12 -0000
@@ -24,11 +24,18 @@
 
 extern spinlock_t __atomic_hash[ATOMIC_HASH_SIZE];
 /* copied from
><asm/spinlock.h> and modified */
-#  define SPIN_LOCK(x) \
-	do { while(__ldcw(&(x)->lock) == 0); } while(0)
-	
-#  define SPIN_UNLOCK(x) \
-	do { (x)->lock = 1; } while(0)
+static inline void SPIN_LOCK(spinlock_t *x)
+{
+	volatile unsigned int
>*a = __ldcw_align(x);
+	while (__ldcw(a) == 0)
+		while (*a == 0);
+}
+
+static inline void SPIN_UNLOCK(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	*a = 1;
+}
 #else
 #  define ATOMIC_HASH_SIZE 1
 #  define ATOMIC_HASH
>a)	(0)


randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.or
>/mailman/listinfo/parisc-linux



-------------------------------------------------------------------------
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le monde.
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> (Just in case it would help) I backport your patch in 2.4 (just because the
> only system on which I can test it is a b2k on which 2.6 doesn't boot yet)
> and build a smp 64bit kernel which boot and run fine (rebuild another kernel)
> on this b2k:)

I'd forgotten about the "ldcw,co" errata for PA 2.0.  You only want/need
self-aligning locks for PA 1.x.  You should be able to test this on a
PA 2.0 machine if you don't define CONFIG_PA20.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Hi Dave,

I trust that I have to restart my test (32b smp, 64b smp; all seems to works
fine in 32b but some worries in 64b). With the new 2.4.23-pa1, I discover
that I let badly commented a small chunk a code (just involved toc) and I
wrongly merge Randolph's patch (just about a small #ifdef CONFIG_PA20 in
2.4: thanks for your comments :) ).

I will advise.

Thanks again,
    Joel

>-- Original Message --
>To: soete.joel@tiscali.be (Joel Soete)
>Date: Mon, 1 Dec 2003 13:30:07 -0500 (EST)
>From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>Cc: randolph@tausq.org, parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] [RFC] rewrite kernel spinlock code to work better
>with gcc
>
>
>> (Just in case it would help) I backport your patch in 2.4 (just because
the
> only system on which I can test it is a b2k on which 2.6 doesn't boot yet)
> and build a smp 64bit kernel which boot and run fine (rebuild another kernel)
> on this b2k:
>

I'd forgotten about the "ldcw,co" errata for PA 2.0.  You only want/need
self-aligning locks for PA 1.x.  You should be able to test this on a
PA 2.0 machine if you don't define CONFIG_PA20.

Dave
-- 
J. David Anglin                          
>       dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



-------------------------------------------------------------------------
Tiscali ADSL: 12 mois  29,50 /mois! L'Internet rapide, c'est pour tout
le monde.
http://reg.tiscali.be/default.asp?lg=fr




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Subject: [parisc-linux] US STOCK MARKET - HTDS Medical Research---CANCER Trials.....judd
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US Stock Market - Stock Profile of the Week

Symbol: HTDS
Market: PK
Sector: MEDICAL RESEARCH


BARCHART Rates HTDS an 80% BUY - http://quotes.barchart.com/texpert.asp?sy=
m=3DHTDS


Before we begin our profile we have very exciting, breaking news...

Tubercin Passes Toxicity Trials - Ready To Proceed To Live Cancer Trials


BREAKING NEWS - DELRAY BEACH, Fla.--(BUSINESS WIRE)--Hard to Treat Disease=
s Incorporated (Pink Sheets:HTDS) announces that Tubercin=AE has passed th=
e toxicity tests required to proceed to the live cancer trials. Testing Tu=
bercin=AE on live Melanoma, Lung and Breast cancer cells will begin immedi=
ately.  The President and CEO, Mr. Colm J. King, met with the spokesperson=
 of the medical group at their offices in Oklahoma City. Mr. King was advi=
sed that the tests were conducted under strict FDA (Federal Drug Administr=
ation) guidelines. Full test results will be available at the corporate of=
fices as soon as the reports and findings are printed. 

"These are the most promising results to date regarding Tubercin=AE and we=
're looking forward to additional positive results in the near future," st=
ated Mr. King. "These tests prove that Tubercin=AE is non-toxic and is the=
 first step on the way to human clinical trials as well as the first posit=
ive breakthrough conducted in the United States with an independent medica=
l group for Tubercin=AE." 

Operating out of Delray Beach, Florida, Hard to Treat Diseases Incorporate=
d ("HTTD") holds the international marketing rights, except South Korea, t=
o Tubercin=AE, a patented immunostimulant developed for combating Cancer u=
nder medical patent (US Patent 6,274,356). The unique properties unlike ot=
her cancer products are clearly stated in the abstract summary of the pate=
nt... "A carbohydrate complex, which is a mixture of low molecular-weight =
polysaccharides of an arabinomannan structure extracted from Mycobacterium=
 tuberculosis, is highly effective in treating various cancer patients wit=
hout incurring any adverse side effects." 



STOCK PROFILE OF THE WEEK

HTDS is now at an emerging and potentially explosive stage.  As stated in =
their press release, Tubercin is now ready to proceed (after tests conduct=
ed under strict FDA guidelines) to human clinical trials.  While they have=
 jumped one very big hurdle, they are still in the early stages of develop=
ment and now is a great time for investors to take heed.



TUBERCIN

Over the past ten years, epoch making anticancer agents have continuously =
been introduced, but the mortality of cancer patients have been rising in =
the U.S. and the European countries not to mention Japan and Korea. The de=
cisive measure to cope with cancer is surgery.
  

When the cancer cells spread throughout the body instead of remaining on t=
he original spot, the treatment should take into consideration chemotherap=
y, radiation therapy and immunotherapy. The drawback of such therapies, ho=
wever, is they incur damages not only on cancer cells, but also on the nor=
mal cells. 
  

Chemotherapy and radiation therapy are not suitable for application on wea=
kened patients, especially those above 70. Historically, various forms of =
immunotherapy have been performed, falling short of therapeutic expectatio=
n. When Bacille calmetteguerin is used as an active no-specific immunother=
apeutic agent, however, the patient's prognosis turns better through a sim=
ulative action on immune system of the cancer case. 
  

Professor T.H. Chung of Korea extracted carbohydrate complex Tubercin from=
 microbacterium tuberculosis to be used as immunostimulant. This was meant=
 to activate the T-lymphocyte of the cancer patient to produce lymphokine.=
 This process strengthened and promoted immuno surveillance activities in =
deficient state and alleviated the pain and prolonged the life of cancer p=
atients.
  

Of late the pharmaceutical industry in advanced countries started to put o=
n the market so called cancer vaccines (active specific immunotherapy). Th=
e vaccines, bacterial extracts, as adjuvants, with autologous and or allog=
enic cancer cells to generate antibodies to cancer cells, facilitating the=
 killer T-cells to recognize and destroy cancer cells.
  

The laboratory work to modify autologous or allogenic cancer cells are not=
 ordinary and simple. When our lab work augments the active specific immun=
otherapeutic agents, the Tubercin will be one of the best adjuvants. Meanw=
hile, the main point of AIDS is its virus killing T-cells and Tubercin hel=
ps maintain healthy T-cells. Consequently, we focus our effort on the appl=
ication of Tubercin to AIDS.
  

TUBERCIN is derived from micro bacterium tuberculosis. As an immunostimula=
nt, TUBERCIN strengthens the human body's own immune system and assists th=
e body in seeking out and combating cancer cells. HTTD is potentially able=
 to develop TUBERCIN into a low-cost product to treat cancer patients on a=
n international scale. Salient treatment, through the administration of TU=
BERCIN, could positively affect thousands of lives in North America. In ad=
dition, Europe and Asia have millions of lives at risk each year because o=
f viral diseases such as cancer.
  

TUBERCIN IS A FINISHED PRODUCT. Tubercin as an inmunostimulant has been ad=
ministered to human patients in stages three and four of terminal cancer. =
There have been no indications of any adverse side effects in human trials=
 There has been encouraging results of patients with TUBERCIN in the last=
 fourteen years. Various forms of cancer were involved and many of the pat=
ients survived.
  

A review of clinical studies indicate TUBERCIN has no side effects and cou=
ld possibly be administered in conjunction with other such modalities for =
the treatment of cancer without any adverse effects. The scientific presum=
ption would be the distinct possibility of a strengthened immunity system =
and the administration of treatment such as chemotherapy at the later stag=
es of tumor growth would not be impeded by the weakened condition of the t=
erminal cancer patient. To this end the Company has been assisted by outsi=
de consultants reviewing the research data and human trials involving TUBE=
RCIN to see specifically whereby incidents of dual treatment produced favo=
rable results in terms of moving toward indication of prolongation of the =
life of the cancer patient.
  

There is recognition that morphine is an trusted pain killer, but in total=
ity it cannot be said that it has no side effects. In the maintaining of p=
atient care, there is the strong possibility that TUBERCIN could be also c=
onsidered as a candidate for a pain management. The Company's scientists d=
escribe TUBERCIN as having the high propensity of deadening the nerve endi=
ngs in specific areas of the body where cancer has caused erosion and cons=
equently much pain.



PATENTS

Presently, HTTD has the patent rights for Korea, Japan and the United Stat=
es. The Korean patent was issued on October 29, 1998 (Registration No. 173=
362). The Japanese patent was issued on June 12, 1998 (Registration No. 27=
90447). The United States patent was issued on August 14, 2001 (Registrati=
on No.6,274,356). Currently, patents are pending for Canada and Europe (th=
e United Kingdom, France, Germany, Italy and Spain).  



CANCER IN OUR TIME

In the 20th century, the number of cancer patients has been on the increas=
e. Although many anti-cancer agents were developed and an enormous study o=
n its essence continued, the mortality by cancer still is increasing. Mank=
ind may be chronically threatened with cancer in the 21st century. Nine mi=
llion new case of cancer occur annually and five million people die from b=
reast cancer, reports the World Health Organization. Dramatic increases in=
 life expectancy and change in lifestyle are estimated to increase the num=
ber of new cancer cases to 20 million annually by 2020 and cancer deaths t=
o more than 10 million. 

About 552,200 Americans - more than 1,500 people a day - are excepted to d=
ie of cancer this year. In the United States, one of every four deaths is =
attributed to cancer. Cancer is the second-leading cause of death in the U=
nited States. Exceeded only by heart disease. About 5 million lives have b=
een lost to cancer since 1990 and about 13 million new cases have been dia=
gnosed. In 2000, more then 1.2 million new cancer cases are expected to be=
 diagnosed. The number of cancer cases will continue to grow, spurred by t=
he aging population. By 2009, this patient group could total 8.4 million. =
In 1997, about 6.3 million people worldwide died from some form of cancer,=
 and most major international cancer agencies expect this number to double=
 by 2022.








Please note that HTDS had absolutley nothing to do with this report and is=
 not a participant in any way.









No more advertisements: http://doubleopt.biz/optout.html









Stock Market Today is an independent research firm. This report is based o=
n Stock Market Today's independent analysis but also relies on information=
 supplied by sources believed to be reliable. This report may not be the o=
pinion of HTDS management. Stock Market Today has also been retained to re=
search and issue reports on HTDS. Stock Market Today may from time to time=
 purchase or sell HTDS common shares in the open market without notice. Th=
e information contained in this report shall not constitute, an offer to s=
ell or solicitation of any offer to purchase any security. It is intended =
for information only. Some statements may contain so-called "forward-looki=
ng statements". Many factors could cause actual results to differ. Investo=
rs should consult with their Investment Advisor concerning HTDS. Copyright=
 2003 =A9 Stock Market Today Ltd. All Rights Reserved. This newsletter was=
 distributed by MMS, Inc. MMS was paid eight hundred and fifty thousand sh=
ares HTDS stock to distribute this report. MMS is not affiiated with Stock=
 Market Today and is not responsible for newsletter content.





























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m

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--sG624X+5B8xHI10M
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Hi!

I just got a 735/99, but I can't boot it. It came along with two HDDs
(on the narrow SCSI bus), a FDDI interface on the CPU/RAM board and a
"normal" ethernet interface (Intel chip) in the EISA slot:


BOOT_ADMIN> lan_addr
LAN Station Address:  080009-836dca
BOOT_ADMIN> fddi_addr
FDDI Station Address:  080009-836dcb
BOOT_ADMIN> boot lan

Trying lan.000000-000000.0.0
Cannot find ENTRY_INIT.

Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.6.0                 HP      C3323-300
P1                    scsi.1.0                 CONNER  CFP2105S  2.14GB



b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu: a
BOOT_ADMIN> boot lan.080009-836dca

Trying lan.080009-836dca.0.0
Cannot find ENTRY_INIT.

Searching for Potential Boot Devices.
To terminate search, press and hold the ESCAPE key.

Device Selection      Device Path              Device Type
----------------------------------------------------------------------------

P0                    scsi.6.0                 HP      C3323-300
P1                    scsi.1.0                 CONNER  CFP2105S  2.14GB



b)    Boot from specified device
s)    Search for bootable devices
a)    Enter Boot Administration mode
x)    Exit and continue boot sequence
?)    Help

Select from menu:=20


I don't have a FDDI network at home, only RJ45 ethernet is available.
Additionally, I don't have an external CD-ROM drive handy atm. Should I
just wait until I get my drives back?

MfG, JBG

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--sG624X+5B8xHI10M
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--sG624X+5B8xHI10M--


From - Thu Nov 08 21:30:10 2018
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From: "Kris Marino" <star@msn.com>
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Subject: [parisc-linux] Doctors find medical discovery for adult males! lj
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From: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] acenic hanging the machine with 2.6.0-test11-pa0
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To: Grant Grundler <grundler@parisc-linux.org>
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Grant,
	Here is the data.

Hangs the machine after printing this:

parisc:/home/acme/bk/net-exp-2.6.1# modprobe acenic
acenic.c: v0.92 08/05/2002  Jes Sorensen, linux-acenic@SunSITE.dk
                            http://home.cern.ch/~jes/gige/acenic.html
divert: allocating divert_blk for eth1
eth1: Alteon AceNIC Gigabit Ethernet at 0xfffffffffa000000, irq 256
  Tigon II (Rev. 6), Firmware: 12.4.11, MAC: 00:30:6e:04:80:6a
  PCI bus width: 64 bits, speed: 66MHz, latency: 128 clks

Full output of "ser pim"

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0x0000082000ff6242  0x0000000000000000
       0x1800082011006312  0xcb81000000000000
       0x0000087000ff6292  0x000000f0f0000000
       0x6000082070006062  0x0000000000100010
       0x7000082070006082  0x0000000000b92400
       0x7000082379006133  0xc1bff0fffed08040
       0x0000080080006310  0x0000000000000001
       0x000008008000631f  0x0000000000000000


General Registers 0 - 31
00-03  0000000000000000  0000000010235ae8  00000000000a103c  fffffffffa000140
04-07  0000000070af0000  000000002e6ed000  0000000000000000  00000000006e0480
08-11  000000002e87ad40  0000000000000030  fffffffffa000000  0000000000097000
12-15  0000000000000040  000000002e87aa00  0000000000000000  000000000000000c
16-19  fffffffffa000140  fffffffffa000504  0000000000000000  0000000010000000
20-23  0000000000000000  0000100001001000  000000002e87afa0  0000000000000000
24-27  0000000000000000  0000000000000000  000000002e87aee8  0000000000097000
28-31  000000002e87aee8  000000002e6744f0  000000002e674500  0000000000000070

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000182  0000000000000000  00000000000000c0  000000000000003c
12-15  0000000000000000  0000000000000000  0000000000108000  ff00000000000000
16-19  0000003d39556b02  0000000000000000  00000000000a1084  000000000c600193
20-23  00000000ae27ffe8  c000000000000140  000000ff0804ff0f  8000000000000000
24-27  00000000003c0000  000000001f3bc000  0000000000041020  000000f0f0165670
28-31  5555555555555555  5555555555555555  000000002e674000  0000000010429000

Space Registers 0 - 7
00-03  00018580          00000000          00000000          00006080
04-07  00000000          00000000          00000000          00000000

 <Press any key to continue or 'Q' to quit>
IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x00000000000a1088
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030103b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000fffa000140
System Requestor Address     = 0xfffffffffffa0000


Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  000000001045ace0  0000000000000001  0000000010ef7530  00000000103c6000
08-11  0000000000000000  00000000104b1268  000000003ccbf700  000f41fa48c29140
12-15  000000001045ace0  000000003ccbf000  00000000101a2b48  00000000000000ff
16-19  00000000f0000390  00000000104a1da8  0000000000000002  00000000103bf040
20-23  0000000000000002  000000002fc85000  0000000000000000  0000000000000000
24-27  000007b100000000  000000002fc85000  000000001045ace0  0000000000000802
28-31  00000000f0002a7c  00000000f000022c  0000000010237964  0000000000000457

Check Summary                = 0xcb81000000000000
Available Memory             = 0x0000000020000000
CPU Diagnose Register 2      = 0x0203000200802004
CPU Status Register 0        = 0x2420c20000000000
CPU Status Register 1        = 0x8002000000000000
SADD LOG                     = 0xf4c4008411508840
Read Short LOG               = 0xc1af00fffa000140

-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000

-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000

Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000000000000
CPU State                    = 0x00000000

--------------  Memory Error Log Information  --------------

Bus 0 Log Information

Timestamp =    Tue Dec  2 22:21:32 GMT 2003    (20:03:12:02:22:21:32)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X       X     ERR_ERROR       X            X

Bus Requestor Address      = 0xfffffffffffa0000
Bus Target Address         = 0x0000000000000000
Bus Responder Address      = 0xfffffffffed00000

Error Status Reg           = 0x0000000000100010
Runway Control Reg         = 0x0000021c00002818
Runway Address Reg         = 0xc1bff0fffed08040
Runway Data High Reg       = 0xf8018a1ff820ca01
Runway Data Low Reg        = 0xf8018a1ff820ca01
Memory Address Reg         = 0x000001ff3fffffff
Memory Address Corr Reg    = 0x000001ff3fffffff
Memory Syndrome Reg        = 0x0000000000000000
Memory Syndrome Corr Reg   = 0x0000000000000000

 Address/Control Parity Error Registers

   Address/Control Parity Error Bit (mem_addr_par_stat) Not Set

------------  I/O Module Error Log Information  ------------


   No I/O module errors logged



-------------------------------------------------------------------------


acme@parisc:~/bk/net-exp-2.6.1$ scripts/ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.

Linux parisc 2.6.0-test11-pa0 #1 Tue Dec 2 14:20:21 BRST 2003 parisc64 GNU/Linux
Gnu C                  3.3.2
Gnu make               3.80
util-linux             2.12
mount                  2.12
module-init-tools      0.9.15-pre3
e2fsprogs              1.35-WIP
nfs-utils              1.0.6
Linux C Library        2.3.2
Dynamic linker (ldd)   2.3.2
Procps                 3.1.14
Net-tools              1.60
Console-tools          0.2.3
Sh-utils               5.0.91
Modules Loaded         tulip crc32 md5 ipv6
acme@parisc:~/bk/net-exp-2.6.1$

parisc:/proc/bus/pci/20# cd /
parisc:/# cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8700 (PCX-W2)
cpu MHz         : 650.000000
model           : 9000/800/A500-6X
model name      : Crescendo 650 W2
hversion        : 0x00005e20
sversion        : 0x00000491
I-cache         : 768 KB
D-cache         : 1536 KB (WB)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
bogomips        : 1294.33
software id     : 1840889640

parisc:/#

00:00.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
	Subsystem: Hewlett-Packard Company: Unknown device 104f
	Flags: bus master, medium devsel, latency 128, IRQ 128
	I/O ports at 0080 [size=128]
	Memory at fffffff0 (32-bit, non-prefetchable) [size=1K]
	Expansion ROM at fffff800 [size=256K]

00:01.0 SCSI storage controller: LSI Logic / Symbios Logic 53c896 (rev 07)
	Flags: bus master, medium devsel, latency 128, IRQ 129
	I/O ports at 0100 [size=256]
	Memory at fffffff0 (64-bit, non-prefetchable) [size=1K]
	Memory at fffffff0 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <available only to root>

00:01.1 SCSI storage controller: LSI Logic / Symbios Logic 53c896 (rev 07)
	Flags: bus master, medium devsel, latency 128, IRQ 130
	I/O ports at 0200 [size=256]
	Memory at fffffff0 (64-bit, non-prefetchable) [size=1K]
	Memory at fffffff0 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <available only to root>

00:02.0 SCSI storage controller: LSI Logic / Symbios Logic 53c875 (rev 37)
	Flags: bus master, medium devsel, latency 128, IRQ 130
	I/O ports at 0300 [size=256]
	Memory at fffffff0 (32-bit, non-prefetchable) [size=256]
	Memory at fffffff0 (32-bit, non-prefetchable) [size=4K]
	Capabilities: <available only to root>

00:02.1 SCSI storage controller: LSI Logic / Symbios Logic 53c875 (rev 37)
	Flags: bus master, medium devsel, latency 128, IRQ 131
	I/O ports at 0400 [size=256]
	Memory at fffffff0 (32-bit, non-prefetchable) [size=256]
	Memory at fffffff0 (32-bit, non-prefetchable) [size=4K]
	Capabilities: <available only to root>

00:04.0 System peripheral: Hewlett-Packard Company: Unknown device 128d (rev 01)
	Subsystem: Hewlett-Packard Company: Unknown device 128e
	Flags: medium devsel
	Capabilities: <available only to root>

00:04.1 Serial controller: Hewlett-Packard Company Diva Serial [GSP] Multiport UART (rev 03) (prog-if 02 [16550])
	Subsystem: Hewlett-Packard Company: Unknown device 1283
	Flags: medium devsel, IRQ 132
	Memory at fffffff0 (32-bit, non-prefetchable) [size=4K]
	I/O ports at 0040 [size=64]
	Capabilities: <available only to root>

20:00.0 Ethernet controller: Alteon Networks Inc. AceNIC Gigabit Ethernet (rev 01)
	Subsystem: Hewlett-Packard Company: Unknown device 106f
	Flags: 66Mhz, medium devsel, IRQ 256
	Memory at fffffff0 (32-bit, non-prefetchable) [disabled] [size=16K]


acme@parisc:~/bk/net-exp-2.6.1$ cat /proc/iomem
00000000-1fffffff : System RAM
  00000000-000009ff : PDC data (Page Zero)
  00100000-00399fff : Kernel code
  0039a000-004cee83 : Kernel data
ffffffff-100000006 : serial
fffffffff8000000-fffffffff87fffff : LBA LMMIO
  fffffffff8000000-fffffffff8000fff : 0000:00:04.1
    fffffffff8000000-fffffffff8000007 : serial
    fffffffff8000010-fffffffff8000017 : serial
    fffffffff8000030-fffffffff8000037 : serial
    fffffffff8000038-fffffffff800003f : serial
  fffffffff8001000-fffffffff8001fff : 0000:00:02.0
    fffffffff8001000-fffffffff8001fff : sym53c8xx
  fffffffff8002000-fffffffff8003fff : 0000:00:01.0
    fffffffff8002000-fffffffff8003fff : sym53c8xx
  fffffffff8004000-fffffffff8004fff : 0000:00:02.1
    fffffffff8004000-fffffffff8004fff : sym53c8xx
  fffffffff8005000-fffffffff80053ff : 0000:00:00.0
    fffffffff8005000-fffffffff80053ff : tulip
  fffffffff8006000-fffffffff80063ff : 0000:00:01.0
    fffffffff8006000-fffffffff80063ff : sym53c8xx
  fffffffff8007000-fffffffff80070ff : 0000:00:02.0
    fffffffff8007000-fffffffff80070ff : sym53c8xx
  fffffffff8008000-fffffffff80080ff : 0000:00:02.1
    fffffffff8008000-fffffffff80080ff : sym53c8xx
  fffffffff8020000-fffffffff80203ff : 0000:00:01.1
    fffffffff8020000-fffffffff80203ff : sym53c8xx
  fffffffff8040000-fffffffff8041fff : 0000:00:01.1
    fffffffff8040000-fffffffff8041fff : sym53c8xx
  fffffffff8080000-fffffffff80bffff : 0000:00:00.0
fffffffff9000000-fffffffff97fffff : LBA LMMIO
fffffffffa000000-fffffffffa7fffff : LBA LMMIO
  fffffffffa000000-fffffffffa003fff : 0000:20:00.0
fffffffffb000000-fffffffffb7fffff : LBA LMMIO
fffffffffed00000-fffffffffed00fff : SBA
fffffffffed30000-fffffffffed30fff : lba
fffffffffed34000-fffffffffed34fff : lba
fffffffffed38000-fffffffffed38fff : lba
fffffffffed3c000-fffffffffed3cfff : lba
fffffffffff80000-fffffffffffaffff : Central Bus
  fffffffffffa0000-fffffffffffa0fff : CPU
fffffffffffb0000-fffffffffffdffff : Local Broadcast
fffffffffffe0000-ffffffffffffffff : Global Broadcast

acme@parisc:~/bk/net-exp-2.6.1$ cat /proc/interrupts
           CPU00
 64:    1262318      PARISC-CPU  timer
 65:       1846      PARISC-CPU  IO-SAPIC00-L0
 66:         33      PARISC-CPU  IO-SAPIC00-L1
 67:          0      PARISC-CPU  IO-SAPIC00-L2
 68:      29457      PARISC-CPU  IO-SAPIC00-L2
 69:         30      PARISC-CPU  IO-SAPIC00-L3
 70:       4425      PARISC-CPU  IO-SAPIC00-L4
 71:          0      PARISC-CPU  IO-SAPIC02-L0
128:       1846      IO-SAPIC00  eth0
129:         33      IO-SAPIC00  sym53c8xx
130:      29457      IO-SAPIC00  sym53c8xx, sym53c8xx
131:         30      IO-SAPIC00  sym53c8xx
132:       4425      IO-SAPIC00  serial

- Arnaldo


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [PATCH] ELF32 userspace, ELF64 kernel, and 32-bit signals on hppa. (help needed)
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Xref: news.gmane.org gmane.linux.ports.parisc:20269

parisc,

*** Help needed, code broken ...  ***

Currently our siginfo_t and ucontext_t structures delivered to an ELF32
userspace from an ELF64 kernel are not correct. The kernel thinking
userspace is the same bitwidth, writes it's registers and values as
64-bits. Architectures like sparc64 and ppc64 have rolled their own
solutions. I wanted to make it a little more generic.

jejb,

Thanks for the initial cleanup and poking me in the right direction!
I promised this out a little while back, but as a good hacker I'm up too
late to be thinking straight and get the patch out the door.

What does the patch do?
- Add siginfo_t generic compat structure and code to write it to
  userspace.
- Add generic compat signal structures.
- Add generic kernel code to handle this structure.
- Add lots more PARISC compat structures.
- Add code in our signal path to distinguish the process personality and
  learn to setup/restore a 32-bit/64-bit rt frame structure.

There is a bug hiding in the code... I can't find it yet.
Userspace sorta works, but sometimes processes go splat, and I think it
has to do with the following:

- In restore_context32 I have to ship the 32-bit value into a 64-bit
  registers. Should it be sign extended?
= I think yes.
- Is stack address 0xfffffffffaf00410 the same as 0x00000000faf00410?
= No?

What to do?

- Enable debugging in singal.c and signal32.c and keep looking for the
  bug :)

Cheers,
Carlos.

====
 arch/parisc/kernel/signal.c             |  277 +++++++++++++++------------
 arch/parisc/kernel/signal32.c           |  156 +++++++++++++--
 arch/parisc/kernel/signal32.h           |   22 ++
 include/asm-generic/compat_siginfo.h    |  154 +++++++++++++++
 include/asm-generic/compat_signal.h     |   28 ++
 include/asm-parisc/compat.h             |   10
 include/asm-parisc/compat_rt_sigframe.h |   25 ++
 include/asm-parisc/compat_siginfo.h     |    2
 include/asm-parisc/compat_signal.h      |    2
 include/asm-parisc/compat_ucontext.h    |   19 +
 include/asm-parisc/rt_sigframe.h        |   13 -
 include/asm-parisc/siginfo.h            |    2
 include/asm-parisc/ucontext.h           |    8
 kernel/Makefile                         |    2
 kernel/compat_signal.c                  |  126 ++++++++++++
 kernel/signal.c                         |    8
 16 files changed, 709 insertions(+), 145 deletions(-)
====
--- arch/parisc/kernel/signal.c	9 Nov 2003 18:57:46 -0000	1.14
+++ arch/parisc/kernel/signal.c	3 Dec 2003 06:49:32 -0000
@@ -27,19 +27,25 @@
 #include <linux/compat.h>
 #include <linux/elf.h>
 #include <linux/personality.h>
+#include <linux/compat.h>
 #include <asm/ucontext.h>
 #include <asm/rt_sigframe.h>
 #include <asm/uaccess.h>
 #include <asm/pgalloc.h>
 #include <asm/cacheflush.h>
+#include "signal32.h"
 
-#define DEBUG_SIG 0
+#define DEBUG_SIG 0 
+#define DEBUG_SIG_LEVEL 2
 
 #if DEBUG_SIG
-#define DBG(x)	printk x
+#define DBG(LEVEL, ...) \
+        ((DEBUG_SIG_LEVEL >= LEVEL) \
+	? printk(__VA_ARGS__) : (void) 0)
 #else
-#define DBG(x)
+#define DBG(LEVEL, ...)
 #endif
+	
 
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
@@ -52,43 +58,6 @@
 
 int do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall);
 
-int copy_siginfo_to_user(siginfo_t *to, siginfo_t *from)
-{
-	if (from->si_code < 0)
-		return __copy_to_user(to, from, sizeof(siginfo_t));
-	else {
-		int err;
-
-		/*
-		 * If you change siginfo_t structure, please be sure
-		 * this code is fixed accordingly.  It should never
-		 * copy any pad contained in the structure to avoid
-		 * security leaks, but must copy the generic 3 ints
-		 * plus the relevant union member.
-		 */
-		err = __put_user(from->si_signo, &to->si_signo);
-		err |= __put_user(from->si_errno, &to->si_errno);
-		err |= __put_user((short)from->si_code, &to->si_code);
-		switch (from->si_code >> 16) {
-		      case __SI_FAULT >> 16:
-			/* FIXME: should we put the interruption code here? */
-		      case __SI_POLL >> 16:
-			err |= __put_user((unsigned long)from->si_addr, &to->si_addr);
-			break;
-		      case __SI_CHLD >> 16:
-			err |= __put_user(from->si_utime, &to->si_utime);
-			err |= __put_user(from->si_stime, &to->si_stime);
-			err |= __put_user(from->si_status, &to->si_status);
-		      default:
-			err |= __put_user(from->si_uid, &to->si_uid);
-			err |= __put_user(from->si_pid, &to->si_pid);
-			break;
-		      /* case __SI_RT: This is not generated by the kernel as of now.  */
-		}
-		return err;
-	}
-}
-
 /*
  * Atomically swap in the new signal mask, and wait for a signal.
  */
@@ -101,26 +70,27 @@ sys_rt_sigsuspend(sigset_t *unewset, siz
 {
 	sigset_t saveset, newset;
 #ifdef __LP64__
-	/* XXX FIXME -- assumes 32-bit user app! */
 	compat_sigset_t newset32;
 
-	/* XXX: Don't preclude handling different sized sigset_t's.  */
-	if (sigsetsize != sizeof(compat_sigset_t))
-		return -EINVAL;
-
-	if (copy_from_user(&newset32, (compat_sigset_t *)unewset, sizeof(newset32)))
-		return -EFAULT;
-
-	newset.sig[0] = newset32.sig[0] | ((unsigned long)newset32.sig[1] << 32);
-#else
-
-	/* XXX: Don't preclude handling different sized sigset_t's.  */
-	if (sigsetsize != sizeof(sigset_t))
-		return -EINVAL;
-
-	if (copy_from_user(&newset, unewset, sizeof(newset)))
-		return -EFAULT;
+	if(personality(current->personality) == PER_LINUX32){
+		/* XXX: Don't preclude handling different sized sigset_t's.  */
+		if (sigsetsize != sizeof(compat_sigset_t))
+			return -EINVAL;
+		if (copy_from_user(&newset32, (compat_sigset_t *)unewset, sizeof(newset32)))
+			return -EFAULT;
+		sigset_32to64(&newset,&newset32);
+		
+	} else 
 #endif
+	{
+		/* XXX: Don't preclude handling different sized sigset_t's.  */
+		if (sigsetsize != sizeof(sigset_t))
+			return -EINVAL;
+	
+		if (copy_from_user(&newset, unewset, sizeof(newset)))
+			return -EFAULT;
+	}
+
 	sigdelsetmask(&newset, ~_BLOCKABLE);
 
 	spin_lock_irq(&current->sighand->siglock);
@@ -161,7 +131,9 @@ restore_sigcontext(struct sigcontext *sc
 	err |= __copy_from_user(regs->iaoq, sc->sc_iaoq, sizeof(regs->iaoq));
 	err |= __copy_from_user(regs->iasq, sc->sc_iasq, sizeof(regs->iasq));
 	err |= __get_user(regs->sar, &sc->sc_sar);
-	DBG(("restore_sigcontext: r28 is %ld\n", regs->gr[28]));
+	DBG(2,"restore_sigcontext: iaoq is 0x%#lx / 0x%#lx\n", 
+			regs->iaoq[0],regs->iaoq[1]);
+	DBG(2,"restore_sigcontext: r28 is %ld\n", regs->gr[28]);
 	return err;
 }
 
@@ -174,6 +146,9 @@ sys_rt_sigreturn(struct pt_regs *regs, i
 	unsigned long usp = (regs->gr[30] & ~(0x01UL));
 	unsigned long sigframe_size = PARISC_RT_SIGFRAME_SIZE;
 #ifdef __LP64__
+	compat_sigset_t compat_set;
+	struct compat_rt_sigframe * compat_frame;
+	
 	if(personality(current->personality) == PER_LINUX32)
 		sigframe_size = PARISC_RT_SIGFRAME_SIZE32;
 #endif
@@ -182,11 +157,23 @@ sys_rt_sigreturn(struct pt_regs *regs, i
 	/* Unwind the user stack to get the rt_sigframe structure. */
 	frame = (struct rt_sigframe *)
 		(usp - sigframe_size);
-	DBG(("in sys_rt_sigreturn, frame is %p\n", frame));
-
-	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
-		goto give_sigsegv;
+	DBG(2,"sys_rt_sigreturn: frame is %p\n", frame);
 
+#ifdef __LP64__
+	compat_frame = (struct compat_rt_sigframe *)frame;
+	
+	if(personality(current->personality) == PER_LINUX32){
+		DBG(2,"sys_rt_sigreturn: ELF32 process.\n");
+		if (__copy_from_user(&compat_set, &compat_frame->uc.uc_sigmask, sizeof(compat_set)))
+			goto give_sigsegv;
+		sigset_32to64(&set,&compat_set);
+	} else
+#endif
+	{
+		if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+			goto give_sigsegv;
+	}
+		
 	sigdelsetmask(&set, ~_BLOCKABLE);
 	spin_lock_irq(&current->sighand->siglock);
 	current->blocked = set;
@@ -194,17 +181,30 @@ sys_rt_sigreturn(struct pt_regs *regs, i
 	spin_unlock_irq(&current->sighand->siglock);
 
 	/* Good thing we saved the old gr[30], eh? */
-	if (restore_sigcontext(&frame->uc.uc_mcontext, regs))
-		goto give_sigsegv;
-
-	DBG(("usp: %#08lx stack %p", usp, &frame->uc.uc_stack));
+#ifdef __LP64__
+	if(personality(current->personality) == PER_LINUX32){
+		DBG(1,"sys_rt_sigreturn: compat_frame->uc.uc_mcontext 0x%p\n",
+				&compat_frame->uc.uc_mcontext);
+		if (restore_sigcontext32(&compat_frame->uc.uc_mcontext, regs))
+			goto give_sigsegv;
+		DBG(1,"sys_rt_sigreturn: usp %#08lx stack 0x%p\n", 
+				usp, &compat_frame->uc.uc_stack);
+		if (do_sigaltstack32(&compat_frame->uc.uc_stack, NULL, usp) == -EFAULT)
+			goto give_sigsegv;
+	} else
+#endif
+	{
+		DBG(1,"sys_rt_sigreturn: frame->uc.uc_mcontext 0x%p\n",
+				&frame->uc.uc_mcontext);
+		if (restore_sigcontext(&frame->uc.uc_mcontext, regs))
+			goto give_sigsegv;
+		DBG(1,"sys_rt_sigreturn: usp %#08lx stack 0x%p\n", 
+				usp, &frame->uc.uc_stack);
+		if (do_sigaltstack(&frame->uc.uc_stack, NULL, usp) == -EFAULT)
+			goto give_sigsegv;
+	}
+		
 
-	/* I don't know why everyone else assumes they can call this
-           with a pointer to a stack_t on the kernel stack.  That
-           makes no sense.  Anyway we'll do it like m68k, since we
-           also are using segmentation in the same way as them. */
-	if (do_sigaltstack(&frame->uc.uc_stack, NULL, usp) == -EFAULT)
-		goto give_sigsegv;
 
 	/* If we are on the syscall path IAOQ will not be restored, and
 	 * if we are on the interrupt path we must not corrupt gr31.
@@ -212,14 +212,13 @@ sys_rt_sigreturn(struct pt_regs *regs, i
 	if (in_syscall)
 		regs->gr[31] = regs->iaoq[0];
 #if DEBUG_SIG
-	DBG(("returning to %#lx\n", regs->iaoq[0]));
-	DBG(("in sys_rt_sigreturn:\n"));
+	DBG(1,"sys_rt_sigreturn: returning to %#lx, DUMPING REGS:\n", regs->iaoq[0]);
 	show_regs(regs);
 #endif
 	return;
 
 give_sigsegv:
-	DBG(("sys_rt_sigreturn sending SIGSEGV\n"));
+	DBG(1,"sys_rt_sigreturn: Sending SIGSEGV\n");
 	si.si_signo = SIGSEGV;
 	si.si_errno = 0;
 	si.si_code = SI_KERNEL;
@@ -237,9 +236,16 @@ give_sigsegv:
 static inline void *
 get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
 {
+	/*FIXME: ELF32 vs. ELF64 has different frame_size, but since we
+	  don't use the parameter it doesn't matter */
+
+	DBG(1,"get_sigframe: ka = %#lx, sp = %#lx, frame_size = %#lx\n",
+			(unsigned long)ka, sp, frame_size);
+	
 	if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! on_sig_stack(sp))
 		sp = current->sas_ss_sp; /* Stacks grow up! */
 
+	DBG(1,"get_sigframe: Returning sp = %#lx\n", (unsigned long)sp);
 	return (void *) sp; /* Stacks grow up.  Fun. */
 }
 
@@ -259,20 +265,20 @@ setup_sigcontext(struct sigcontext *sc, 
 		err |= __put_user(regs->gr[31]+4, &sc->sc_iaoq[1]);
 		err |= __put_user(regs->sr[3], &sc->sc_iasq[0]);
 		err |= __put_user(regs->sr[3], &sc->sc_iasq[1]);
-		DBG(("setup_sigcontext: iaoq %#lx/%#lx\n",
-			regs->gr[31], regs->gr[31]));
+		DBG(1,"setup_sigcontext: iaoq %#lx / %#lx (in syscall)\n",
+			regs->gr[31], regs->gr[31]+4);
 	} else {
 		err |= __copy_to_user(sc->sc_iaoq, regs->iaoq, sizeof(regs->iaoq));
 		err |= __copy_to_user(sc->sc_iasq, regs->iasq, sizeof(regs->iasq));
-		DBG(("setup_sigcontext: iaoq %#lx/%#lx\n", 
-			regs->iaoq[0], regs->iaoq[1]));
+		DBG(1,"setup_sigcontext: iaoq %#lx / %#lx (not in syscall)\n", 
+			regs->iaoq[0], regs->iaoq[1]);
 	}
 
 	err |= __put_user(flags, &sc->sc_flags);
 	err |= __copy_to_user(sc->sc_gr, regs->gr, sizeof(regs->gr));
 	err |= __copy_to_user(sc->sc_fr, regs->fr, sizeof(regs->fr));
 	err |= __put_user(regs->sar, &sc->sc_sar);
-	DBG(("setup_sigcontext: r28 is %ld\n", regs->gr[28]));
+	DBG(1,"setup_sigcontext: r28 is %ld\n", regs->gr[28]);
 
 	return err;
 }
@@ -286,19 +292,53 @@ setup_rt_frame(int sig, struct k_sigacti
 	unsigned long haddr, sigframe_size;
 	struct siginfo si;
 	int err = 0;
-
+#ifdef __LP64__
+	compat_int_t compat_val;
+	struct compat_rt_sigframe * compat_frame;
+	compat_sigset_t compat_set;
+#endif
+	
 	usp = (regs->gr[30] & ~(0x01UL));
+	/*FIXME: frame_size parameter is unused, remove it. */
 	frame = get_sigframe(ka, usp, sizeof(*frame));
 
-	DBG(("setup_rt_frame 1: frame %p info %p\n", frame, info));
+	DBG(1,"setup_rt_frame: frame %p info %p\n", frame, info);
 
-	err |= __copy_to_user(&frame->info, info, sizeof(siginfo_t));
-	err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
-	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
-	err |= __put_user(sas_ss_flags(regs->gr[30]),
-			  &frame->uc.uc_stack.ss_flags);
-	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, in_syscall);
-	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+	
+#ifdef __LP64__
+
+	compat_frame = (struct compat_rt_sigframe *)frame;
+	
+	if(personality(current->personality) == PER_LINUX32) {
+		DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &compat_frame->info);
+		err |= compat_copy_siginfo_to_user(&compat_frame->info, info);
+		compat_val = (compat_int_t)current->sas_ss_sp;
+		err |= __put_user(compat_val, &compat_frame->uc.uc_stack.ss_sp);
+		compat_val = (compat_int_t)current->sas_ss_size;
+		err |= __put_user(compat_val, &compat_frame->uc.uc_stack.ss_size);
+		compat_val = sas_ss_flags(regs->gr[30]);		
+		err |= __put_user(compat_val, &compat_frame->uc.uc_stack.ss_flags);		
+		DBG(1,"setup_rt_frame: frame->uc = 0x%p\n", &compat_frame->uc);
+		DBG(1,"setup_rt_frame: frame->uc.uc_mcontext = 0x%p\n", &compat_frame->uc.uc_mcontext);
+		err |= setup_sigcontext32(&compat_frame->uc.uc_mcontext, regs, in_syscall);
+		sigset_64to32(&compat_set,set);
+		err |= __copy_to_user(&compat_frame->uc.uc_sigmask, &compat_set, sizeof(compat_set));
+	} else
+#endif
+	{	
+		DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &frame->info);
+		err |= copy_siginfo_to_user(&frame->info, info);
+		err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
+		err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+		err |= __put_user(sas_ss_flags(regs->gr[30]),
+				  &frame->uc.uc_stack.ss_flags);
+		DBG(1,"setup_rt_frame: frame->uc = 0x%p\n", &frame->uc);
+		DBG(1,"setup_rt_frame: frame->uc.uc_mcontext = 0x%p\n", &frame->uc.uc_mcontext);
+		err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, in_syscall);
+		/* FIXME: Should probably be converted aswell for the compat case */
+		err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+	}
+	
 	if (err)
 		goto give_sigsegv;
 
@@ -315,8 +355,8 @@ setup_rt_frame(int sig, struct k_sigacti
 	{
 		int sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
-		DBG(("flushing 64 bytes at space %#x offset %p\n",
-		       sid, frame->tramp));
+		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
+		       sid, frame->tramp);
 	}
 #endif
 
@@ -359,8 +399,8 @@ setup_rt_frame(int sig, struct k_sigacti
 		
 		haddr = fdesc.addr;
 		regs->gr[19] = fdesc.gp;
-		DBG(("64 bit signal, exe=%#lx, r19=%#lx, in_syscall=%d\n",
-		     haddr, regs->gr[19], in_syscall));
+		DBG(1,"setup_rt_frame: 64 bit signal, exe=%#lx, r19=%#lx, in_syscall=%d\n",
+		     haddr, regs->gr[19], in_syscall);
 	}
 #endif
 
@@ -391,24 +431,33 @@ setup_rt_frame(int sig, struct k_sigacti
 
 	regs->gr[2]  = rp;                /* userland return pointer */
 	regs->gr[26] = sig;               /* signal number */
-	regs->gr[25] = A(&frame->info); /* siginfo pointer */
-	regs->gr[24] = A(&frame->uc);   /* ucontext pointer */
 	
-	DBG(("making sigreturn frame: %#lx + %#x = %#lx\n",
+#ifdef __LP64__
+	if(personality(current->personality) == PER_LINUX32){
+		regs->gr[25] = A(&compat_frame->info); /* siginfo pointer */
+		regs->gr[24] = A(&compat_frame->uc);   /* ucontext pointer */
+	} else
+#endif
+	{		
+		regs->gr[25] = A(&frame->info); /* siginfo pointer */
+		regs->gr[24] = A(&frame->uc);   /* ucontext pointer */
+	}
+	
+	DBG(1,"setup_rt_frame: making sigreturn frame: %#lx + %#lx = %#lx\n",
 	       regs->gr[30], sigframe_size,
-	       regs->gr[30] + sigframe_size));
+	       regs->gr[30] + sigframe_size);
 	/* Raise the user stack pointer to make a proper call frame. */
 	regs->gr[30] = (A(frame) + sigframe_size);
 
 
-	DBG(("SIG deliver (%s:%d): frame=0x%p sp=%#lx iaoq=%#lx/%#lx rp=%#lx\n",
+	DBG(1,"setup_rt_frame: sig deliver (%s,%d) frame=0x%p sp=%#lx iaoq=%#lx/%#lx rp=%#lx\n",
 	       current->comm, current->pid, frame, regs->gr[30],
-	       regs->iaoq[0], regs->iaoq[1], rp));
+	       regs->iaoq[0], regs->iaoq[1], rp);
 
 	return 1;
 
 give_sigsegv:
-	DBG(("setup_rt_frame sending SIGSEGV\n"));
+	DBG(1,"setup_rt_frame: sending SIGSEGV\n");
 	if (sig == SIGSEGV)
 		ka->sa.sa_handler = SIG_DFL;
 	si.si_signo = SIGSEGV;
@@ -431,8 +480,8 @@ handle_signal(unsigned long sig, siginfo
 {
 	struct k_sigaction *ka = &current->sighand->action[sig-1];
 
-	DBG(("handle_signal(sig=%ld, ka=%p, info=%p, oldset=%p, regs=%p)\n",
-	       sig, ka, info, oldset, regs));
+	DBG(1,"handle_signal: sig=%ld, ka=%p, info=%p, oldset=%p, regs=%p\n",
+	       sig, ka, info, oldset, regs);
 	
 	/* Set up the stack frame */
 	if (!setup_rt_frame(sig, ka, info, oldset, regs, in_syscall))
@@ -470,8 +519,8 @@ do_signal(sigset_t *oldset, struct pt_re
 	struct k_sigaction *ka;
 	int signr;
 
-	DBG(("do_signal(oldset=0x%p, regs=0x%p, sr7 %#lx, pending %d, in_syscall=%d\n",
-	       oldset, regs, regs->sr[7], current->sigpending, in_syscall));
+	DBG(1,"\ndo_signal: oldset=0x%p, regs=0x%p, sr7 %#lx, in_syscall=%d\n",
+	       oldset, regs, regs->sr[7], in_syscall);
 
 	/* Everyone else checks to see if they are in kernel mode at
 	   this point and exits if that's the case.  I'm not sure why
@@ -481,12 +530,13 @@ do_signal(sigset_t *oldset, struct pt_re
 	if (!oldset)
 		oldset = &current->blocked;
 
-	DBG(("do_signal: oldset %08lx:%08lx\n", 
-		oldset->sig[0], oldset->sig[1]));
+	DBG(1,"do_signal: oldset %08lx / %08lx\n", 
+		oldset->sig[0], oldset->sig[1]);
 
 
 	signr = get_signal_to_deliver(&info, regs, NULL);
-	/* printk("do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]); */
+	DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]); 
+	
 	if (signr > 0) {
 		/* Restart a system call if necessary. */
 		if (in_syscall) {
@@ -495,14 +545,14 @@ do_signal(sigset_t *oldset, struct pt_re
 		        case -ERESTART_RESTARTBLOCK:
 				current_thread_info()->restart_block.fn = do_no_restart_syscall;
 			case -ERESTARTNOHAND:
-				DBG(("ERESTARTNOHAND: returning -EINTR\n"));
+				DBG(1,"ERESTARTNOHAND: returning -EINTR\n");
 				regs->gr[28] = -EINTR;
 				break;
 
 			case -ERESTARTSYS:
 				ka = &current->sighand->action[signr-1];
 				if (!(ka->sa.sa_flags & SA_RESTART)) {
-					DBG(("ERESTARTSYS: putting -EINTR\n"));
+					DBG(1,"ERESTARTSYS: putting -EINTR\n");
 					regs->gr[28] = -EINTR;
 					break;
 				}
@@ -521,9 +571,8 @@ do_signal(sigset_t *oldset, struct pt_re
 		   delivery failed, we need to continue to iterate in
 		   this loop so we can deliver the SIGSEGV... */
 		if (handle_signal(signr, &info, oldset, regs, in_syscall)) {
-			DBG((KERN_DEBUG
-				"Exiting do_signal (success), regs->gr[28] = %ld\n",
-				regs->gr[28]));
+			DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n",
+				regs->gr[28]);
 			return 1;
 		}
 	}
@@ -577,8 +626,8 @@ do_signal(sigset_t *oldset, struct pt_re
 		}
 	}
 	
-	DBG(("Exiting do_signal (not delivered), regs->gr[28] = %ld\n", 
-		regs->gr[28]));
+	DBG(1,"do_signal: Exit (not delivered), regs->gr[28] = %ld\n", 
+		regs->gr[28]);
 
 	return 0;
 }
--- arch/parisc/kernel/signal32.c	29 Jul 2003 17:00:41 -0000	1.1
+++ arch/parisc/kernel/signal32.c	3 Dec 2003 06:49:32 -0000
@@ -10,20 +10,32 @@
 #include <linux/types.h>
 #include <linux/errno.h>
 
+#include <asm/compat_signal.h>
 #include <asm/uaccess.h>
+
+#include "signal32.h"
 #include "sys32.h"
 
-struct k_sigaction32 {
-	struct sigaction32 sa;
-};
+#define DEBUG_COMPAT_SIG 0 
+#define DEBUG_COMPAT_SIG_LEVEL 2
+
+#if DEBUG_COMPAT_SIG
+#define DBG(LEVEL, ...) \
+	((DEBUG_COMPAT_SIG_LEVEL >= LEVEL) \
+	? printk(__VA_ARGS__) : (void) 0)
+#else
+#define DBG(LEVEL, ...)
+#endif
 
-static inline void
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+inline void
 sigset_32to64(sigset_t *s64, compat_sigset_t *s32)
 {
 	s64->sig[0] = s32->sig[0] | ((unsigned long)s32->sig[1] << 32);
 }
 
-static inline void
+inline void
 sigset_64to32(compat_sigset_t *s32, sigset_t *s64)
 {
 	s32->sig[0] = s64->sig[0] & 0xffffffffUL;
@@ -120,16 +132,10 @@ sys32_rt_sigaction(int sig, const struct
 	return ret;
 }
 
-typedef struct {
-	unsigned int ss_sp;
-	int ss_flags;
-	compat_size_t ss_size;
-} stack_t32;
-
 int 
-do_sigaltstack32 (const stack_t32 *uss32, stack_t32 *uoss32, unsigned long sp)
+do_sigaltstack32 (const compat_stack_t *uss32, compat_stack_t *uoss32, unsigned long sp)
 {
-	stack_t32 ss32, oss32;
+	compat_stack_t ss32, oss32;
 	stack_t ss, oss;
 	stack_t *ssp = NULL, *ossp = NULL;
 	int ret;
@@ -159,4 +165,128 @@ do_sigaltstack32 (const stack_t32 *uss32
 	}
 
 	return ret;
+}
+
+long
+restore_sigcontext32(struct compat_sigcontext *sc, struct pt_regs *regs)
+{
+	long err = 0;
+	compat_int_t compat_reg;
+	int regn;
+	
+	/* When loading 32-bit values into 64-bit registers make
+	   sure to clear the upper 32-bits */
+	DBG(2,"restore_sigcontext32: PER_LINUX32 process\n");
+	DBG(2,"restore_sigcontext32: sc = 0x%p, regs = 0x%p\n",sc,regs);
+	DBG(2,"restore_sigcontext32: compat_sigcontext is %#lx bytes\n", sizeof(*sc));
+	for(regn=0; regn < 32; regn++){
+		err |= __get_user(compat_reg,&sc->sc_gr[regn]);
+		regs->gr[regn] = compat_reg;
+	}
+	DBG(2,"restore_sigcontext32: sc->sc_fr = 0x%p\n",sc->sc_fr);
+	/* XXX: BE WARNED FR's are 64-BIT! */
+	err |= __copy_from_user(regs->fr, sc->sc_fr, sizeof(regs->fr));
+		
+	/* Better safe than sorry, pass __get_user two things of
+	   the same size and let gcc do the upward conversion to 
+	   64-bits */		
+	err |= __get_user(compat_reg, &sc->sc_iaoq[0]);
+	DBG(2,"restore_sigcontext32: sc->sc_iaoq[0] = %p => %#x\n",
+				&sc->sc_iaoq[0],compat_reg);
+	regs->iaoq[0] = compat_reg;
+	err |= __get_user(compat_reg, &sc->sc_iaoq[1]);
+	DBG(2,"restore_sigcontext32: sc->sc_iaoq[1] = %p => %#x\n",
+				&sc->sc_iaoq[1],compat_reg);
+	regs->iaoq[1] = compat_reg;
+	DBG(2,"restore_sigcontext32: iaoq is %#lx / %#lx\n", 
+		regs->iaoq[0],regs->iaoq[1]);		
+	
+	err |= __get_user(compat_reg, &sc->sc_iasq[0]);
+	regs->iasq[0] = compat_reg;
+	err |= __get_user(compat_reg, &sc->sc_iasq[1]);
+	regs->iasq[1] = compat_reg;
+	DBG(2,"restore_sigcontext32: iasq is %#lx / %#lx\n", 
+		regs->iasq[0],regs->iasq[1]);		
+
+	err |= __get_user(compat_reg, &sc->sc_sar);
+	regs->sar = compat_reg;
+	
+	DBG(2,"restore_sigcontext32: r28 is %ld\n", regs->gr[28]);
+	return err;
+}
+
+/*
+ * Set up the sigcontext structure for this process.
+ * This is not an easy task if the kernel is 64-bit, it will require
+ * that we examine the process personality to determine if we need to
+ * truncate for a 32-bit userspace.
+ */
+long
+setup_sigcontext32(struct compat_sigcontext *sc, struct pt_regs *regs, int in_syscall)
+		 
+{
+	compat_int_t flags = 0;
+	long err = 0;
+	compat_int_t compat_reg;
+	int regn;
+	
+	if (on_sig_stack((unsigned long) sc))
+		flags |= PARISC_SC_FLAG_ONSTACK;
+	
+	if (in_syscall) {
+		DBG(1,"setup_sigcontext32: in_syscall\n");
+		flags |= PARISC_SC_FLAG_IN_SYSCALL;
+		/* Truncate gr31 */
+		compat_reg = (compat_int_t)(regs->gr[31]);
+		DBG(2,"setup_sigcontext32: sc->sc_iaoq[0] = %p <= %#x\n",
+				&sc->sc_iaoq[0],compat_reg);
+		/* regs->iaoq is undefined in the syscall return path */
+		err |= __put_user(compat_reg, &sc->sc_iaoq[0]);
+		compat_reg = (compat_int_t)(regs->gr[31]+4);
+		DBG(2,"setup_sigcontext32: sc->sc_iaoq[1] = %p <= %#x\n",
+				&sc->sc_iaoq[1],compat_reg);
+		err |= __put_user(compat_reg, &sc->sc_iaoq[1]);
+		/* Truncate sr3 */
+		compat_reg = (compat_int_t)(regs->sr[3]);
+		err |= __put_user(compat_reg, &sc->sc_iasq[0]);
+		err |= __put_user(compat_reg, &sc->sc_iasq[1]);		
+		
+		DBG(1,"setup_sigcontext32: iaoq %#lx / %#lx\n",
+			regs->gr[31], regs->gr[31]+4);
+	} else {
+		compat_reg = (compat_int_t)(regs->iaoq[0]);
+		DBG(2,"setup_sigcontext32: sc->sc_iaoq[0] = %p <= %#x\n",
+				&sc->sc_iaoq[0],compat_reg);
+		err |= __put_user(compat_reg, &sc->sc_iaoq[0]);
+		compat_reg = (compat_int_t)(regs->iaoq[1]);
+		DBG(2,"setup_sigcontext32: sc->sc_iaoq[1] = %p <= %#x\n",
+				&sc->sc_iaoq[1],compat_reg);
+		err |= __put_user(compat_reg, &sc->sc_iaoq[1]);
+		
+		compat_reg = (compat_int_t)(regs->iasq[0]);
+		err |= __put_user(compat_reg, &sc->sc_iasq[0]);
+		compat_reg = (compat_int_t)(regs->iasq[1]);
+		err |= __put_user(compat_reg, &sc->sc_iasq[1]);
+		
+		DBG(1,"setup_sigcontext32: iaoq %#lx / %#lx\n", 
+			regs->iaoq[0], regs->iaoq[1]);
+	}
+
+	err |= __put_user(flags, &sc->sc_flags);
+	
+	DBG(1,"setup_sigcontext32: Truncating.\n");
+	for(regn=0; regn < 32; regn++){
+		/* Truncate a general register */
+		compat_reg = (compat_int_t)(regs->gr[regn]);
+		err |= __put_user(compat_reg, &sc->sc_gr[regn]);
+	}
+	/* Copy the floating point registers (same size)  */
+	/* XXX: BE WARNED FR's are 64-BIT! */
+	err |= __copy_to_user(sc->sc_fr, regs->fr, sizeof(regs->fr));
+	compat_reg = (compat_int_t)(regs->sar);
+	err |= __put_user(compat_reg, &sc->sc_sar);
+
+	DBG(1,"setup_sigcontext32: r28 is %ld\n", regs->gr[28]);
+
+	return err;
 }
--- include/asm-parisc/compat.h	28 Oct 2003 06:55:24 -0000	1.2
+++ include/asm-parisc/compat.h	3 Dec 2003 06:49:35 -0000
@@ -24,6 +24,7 @@ typedef u16	compat_nlink_t;
 typedef u16	compat_ipc_pid_t;
 typedef s32	compat_daddr_t;
 typedef u32	compat_caddr_t;
+typedef u32	compat_timer_t;
 
 typedef s32	compat_int_t;
 typedef s32	compat_long_t;
@@ -99,6 +100,15 @@ struct compat_statfs {
 	s32		f_namelen;
 	s32		f_frsize;
 	s32		f_spare[5];
+};
+
+struct compat_sigcontext {
+	compat_int_t sc_flags;
+	compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
+	u64 sc_fr[32]; /* FIXME, do we need other state info? */
+	compat_int_t sc_iasq[2];
+	compat_int_t sc_iaoq[2];
+	compat_int_t sc_sar; /* cr11 */
 };
 
 #define COMPAT_RLIM_INFINITY 0xffffffff
--- include/asm-parisc/rt_sigframe.h	24 Sep 2003 17:54:31 -0000	1.2
+++ include/asm-parisc/rt_sigframe.h	3 Dec 2003 06:49:35 -0000
@@ -1,22 +1,13 @@
 #ifndef _ASM_PARISC_RT_SIGFRAME_H
 #define _ASM_PARISC_RT_SIGFRAME_H
 
+#include <asm/compat_rt_sigframe.h>
+
 struct rt_sigframe {
 	unsigned int tramp[4];
 	struct siginfo info;
 	struct ucontext uc;
 };
-
-/*
- * The 32-bit ABI wants at least 48 bytes for a function call frame:
- * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of
- * which Linux/parisc uses is sp-20 for the saved return pointer...)
- * Then, the stack pointer must be rounded to a cache line (64 bytes).
- */
-#define SIGFRAME32		64
-#define FUNCTIONCALLFRAME32	48
-#define PARISC_RT_SIGFRAME_SIZE32					\
-	(((sizeof(struct rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
 
 #ifdef __LP64__
 #define	SIGFRAME		128
--- include/asm-parisc/siginfo.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/siginfo.h	3 Dec 2003 06:49:35 -0000
@@ -1,8 +1,6 @@
 #ifndef _PARISC_SIGINFO_H
 #define _PARISC_SIGINFO_H
 
-#define HAVE_ARCH_COPY_SIGINFO_TO_USER
-
 #include <asm-generic/siginfo.h>
 
 /*
--- include/asm-parisc/ucontext.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/ucontext.h	3 Dec 2003 06:49:35 -0000
@@ -1,12 +1,12 @@
-#ifndef _ASMPARISC_UCONTEXT_H
-#define _ASMPARISC_UCONTEXT_H
+#ifndef _ASM_PARISC_UCONTEXT_H
+#define _ASM_PARISC_UCONTEXT_H
 
 struct ucontext {
-	unsigned long	  uc_flags;
+	unsigned int	  uc_flags;
 	struct ucontext  *uc_link;
 	stack_t		  uc_stack;
 	struct sigcontext uc_mcontext;
 	sigset_t	  uc_sigmask;	/* mask last for extensibility */
 };
 
-#endif /* !_ASMPARISC_UCONTEXT_H */
+#endif /* !_ASM_PARISC_UCONTEXT_H */
--- kernel/Makefile	8 Oct 2003 20:53:06 -0000	1.6
+++ kernel/Makefile	3 Dec 2003 06:49:35 -0000
@@ -5,7 +5,7 @@
 obj-y     = sched.o fork.o exec_domain.o panic.o printk.o profile.o \
 	    exit.o itimer.o time.o softirq.o resource.o \
 	    sysctl.o capability.o ptrace.o timer.o user.o \
-	    signal.o sys.o kmod.o workqueue.o pid.o \
+	    compat_signal.o signal.o sys.o kmod.o workqueue.o pid.o \
 	    rcupdate.o intermodule.o extable.o params.o posix-timers.o
 
 obj-$(CONFIG_FUTEX) += futex.o
--- kernel/signal.c	24 Nov 2003 03:16:26 -0000	1.8
+++ kernel/signal.c	3 Dec 2003 06:49:35 -0000
@@ -24,9 +24,11 @@
 #include <linux/binfmts.h>
 #include <linux/security.h>
 #include <linux/ptrace.h>
+#include <linux/personality.h>
 #include <asm/param.h>
 #include <asm/uaccess.h>
 #include <asm/siginfo.h>
+#include <asm/compat_siginfo.h>
 
 /*
  * SLAB caches for signal bits.
@@ -2006,6 +2008,12 @@ int copy_siginfo_to_user(siginfo_t __use
 	if (from->si_code < 0)
 		return __copy_to_user(to, from, sizeof(siginfo_t))
 			? -EFAULT : 0;
+
+	/* Use compat_siginfo_t with 32-bit signals */
+	if(personality(current->personality) == PER_LINUX32){
+		return compat_copy_siginfo_to_user((compat_siginfo_t __user *)to,from);
+	}
+	
 	/*
 	 * If you change siginfo_t structure, please be sure
 	 * this code is fixed accordingly.
--- arch/parisc/kernel/signal32.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ arch/parisc/kernel/signal32.h	2003-11-28 15:18:40.000000000 -0500
@@ -0,0 +1,22 @@
+#ifndef _PARISC64_KERNEL_SIGNAL32_H
+#define _PARISC64_KERNEL_SIGNAL32_H
+
+#include <linux/compat.h>
+#include <asm/compat_signal.h>
+
+/* ELF32 signal handling */
+
+struct k_sigaction32 {
+	struct compat_sigaction sa;
+};
+
+void sigset_32to64(sigset_t *s64, compat_sigset_t *s32);
+void sigset_64to32(compat_sigset_t *s32, sigset_t *s64);
+int do_sigaltstack32 (const compat_stack_t *uss32, 
+		compat_stack_t *uoss32, unsigned long sp);
+long restore_sigcontext32(struct compat_sigcontext *sc, 
+		struct pt_regs *regs);
+long setup_sigcontext32(struct compat_sigcontext *sc, 
+		struct pt_regs *regs, int in_syscall);
+
+#endif
--- include/asm-generic/compat_siginfo.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ include/asm-generic/compat_siginfo.h	2003-11-28 07:49:19.000000000 -0500
@@ -0,0 +1,154 @@
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <linux/compat.h>
+
+#ifndef _ASM_GENERIC_COMPAT_SIGINFO_H
+#define _ASM_GENERIC_COMPAT_SIGINFO_H
+
+/* compat view of sigval_t */
+typedef union compat_sigval {
+	compat_int_t sival_int;
+	compat_uptr_t sival_ptr;
+} compat_sigval_t;
+
+/*
+ * This is the size (including padding) of the part of the
+ * struct siginfo that is before the union.
+ */
+#ifndef __ARCH_SI_COMPAT_PREAMBLE_SIZE
+#define __ARCH_SI_COMPAT_PREAMBLE_SIZE	(3 * sizeof(int))
+#endif
+
+#define SI_COMPAT_MAX_SIZE	128
+#ifndef SI_COMPAT_PAD_SIZE
+#define SI_COMPAT_PAD_SIZE	((SI_COMPAT_MAX_SIZE - __ARCH_SI_COMPAT_PREAMBLE_SIZE) / sizeof(int))
+#endif
+
+/* ELF32 view of si.uid_t */
+#ifndef __ARCH_SI_COMPAT_UID_T
+#define __ARCH_SI_COMPAT_UID_T compat_uid_t
+#endif
+
+/* ELF32 view of si.band_t */
+#ifndef __ARCH_SI_COMPAT_BAND_T
+#define __ARCH_SI_COMPAT_BAND_T compat_int_t
+#endif
+
+#ifndef HAVE_ARCH_COMPAT_SIGINFO_T
+
+/* Compat (ELF32) view of siginfo_t */
+typedef struct compat_siginfo {
+	compat_int_t si_signo;
+	compat_int_t si_errno;
+	compat_int_t si_code;
+
+	union {
+		compat_int_t _pad[SI_COMPAT_PAD_SIZE];
+
+		/* kill() */
+		struct {
+			compat_pid_t _pid;	/* sender's pid */
+			__ARCH_SI_COMPAT_UID_T _uid;	/* sender's uid */
+		} _kill;
+
+		/* POSIX.1b timers */
+		struct {
+			compat_timer_t _tid;	/* timer id */
+			compat_int_t _overrun;		/* overrun count */
+			char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
+			compat_sigval_t _sigval;	/* same as below */
+			compat_int_t _sys_private;       /* not to be passed to user */
+		} _timer;
+
+		/* POSIX.1b signals */
+		struct {
+			compat_pid_t _pid;		/* sender's pid */
+			__ARCH_SI_COMPAT_UID_T _uid;	/* sender's uid */
+			compat_sigval_t _sigval;
+		} _rt;
+
+		/* SIGCHLD */
+		struct {
+			compat_pid_t _pid;		/* which child */
+			__ARCH_SI_COMPAT_UID_T _uid;	/* sender's uid */
+			compat_int_t _status;		/* exit code */
+			compat_clock_t _utime;
+			compat_clock_t _stime;
+		} _sigchld;
+
+		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
+		struct {
+			compat_uptr_t _addr; /* faulting insn/memory ref. */
+#ifdef __ARCH_SI_TRAPNO
+			compat_int_t _trapno;	/* TRAP # which caused the signal */
+#endif
+		} _sigfault;
+
+		/* SIGPOLL */
+		struct {
+			__ARCH_SI_COMPAT_BAND_T _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
+			compat_int_t _fd;
+		} _sigpoll;
+	} _sifields;
+} compat_siginfo_t;
+#endif
+
+/*
+ * sigevent definitions
+ * 
+ * It seems likely that SIGEV_THREAD will have to be handled from 
+ * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
+ * thread manager then catches and does the appropriate nonsense.
+ * However, everything is written out here so as to not get lost.
+ */
+
+#define SIGEV_COMPAT_MAX_SIZE	64
+#ifndef SIGEV_COMPAT_PAD_SIZE
+#define SIGEV_COMPAT_PAD_SIZE	((SIGEV_COMPAT_MAX_SIZE/sizeof(int)) - 3)
+#endif
+
+#ifndef HAVE_ARCH_COMPAT_SIGEVENT_T
+
+/* ELF32 view of sigevent_t */
+typedef struct compat_sigevent {
+	compat_sigval_t sigev_value;
+	compat_int_t sigev_signo;
+	compat_int_t sigev_notify;
+	union {
+		compat_int_t _pad[SIGEV_COMPAT_PAD_SIZE];
+		compat_int_t _tid;
+
+		struct {
+			compat_uptr_t _function;
+			compat_uptr_t _attribute;	/* really pthread_attr_t */
+		} _sigev_thread;
+	} _sigev_un;
+} compat_sigevent_t;
+
+#endif
+
+#ifdef __KERNEL__
+
+struct compat_siginfo;
+/*void do_schedule_next_timer(struct siginfo *info);*/
+
+#ifndef HAVE_ARCH_COMPAT_COPY_SIGINFO
+
+#include <linux/string.h>
+
+static inline void compat_copy_siginfo(struct compat_siginfo *to, struct compat_siginfo *from)
+{
+	if (from->si_code < 0)
+		memcpy(to, from, sizeof(*to));
+	else
+		/* _sigchld is currently the largest know union member */
+		memcpy(to, from, __ARCH_SI_COMPAT_PREAMBLE_SIZE + sizeof(from->_sifields._sigchld));
+}
+
+#endif
+
+extern int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, struct siginfo *from);
+
+#endif /* __KERNEL__ */
+
+#endif
--- include/asm-generic/compat_signal.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ include/asm-generic/compat_signal.h	2003-12-02 23:01:44.000000000 -0500
@@ -0,0 +1,28 @@
+#ifndef _ASM_GENERIC_COMPAT_SIGNAL_H
+#define _ASM_GENERIC_COMPAT_SIGNAL_H
+
+# ifndef __ASSEMBLY__
+#  include <linux/types.h>
+
+typedef compat_uptr_t compat_sighandler_t;
+
+typedef struct compat_sigaltstack {
+	compat_uptr_t ss_sp;
+	compat_int_t ss_flags;
+	compat_size_t ss_size;
+} compat_stack_t;
+
+#  ifdef __KERNEL__
+
+/* Most things should be clean enough to redefine this at will, if care
+   is taken to make libc match.  */
+
+struct compat_sigaction {
+	compat_sighandler_t sa_handler;
+	compat_uint_t sa_flags;
+	compat_sigset_t sa_mask;		/* mask last for extensibility */
+};
+
+#  endif /* __KERNEL__ */
+# endif /* !__ASSEMBLY */
+#endif /* _ASM_GENERIC_COMPAT_SIGNAL_H */
--- include/asm-parisc/compat_rt_sigframe.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ include/asm-parisc/compat_rt_sigframe.h	2003-12-02 23:11:20.000000000 -0500
@@ -0,0 +1,25 @@
+#include<linux/compat.h>
+#include<asm/compat_siginfo.h>
+#include<asm/compat_ucontext.h>
+
+#ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H
+#define _ASM_PARISC_COMPAT_RT_SIGFRAME_H
+
+struct compat_rt_sigframe {
+	compat_uint_t tramp[4];
+	compat_siginfo_t info;
+	struct compat_ucontext uc;
+};
+
+/*
+ * The 32-bit ABI wants at least 48 bytes for a function call frame:
+ * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of
+ * which Linux/parisc uses is sp-20 for the saved return pointer...)
+ * Then, the stack pointer must be rounded to a cache line (64 bytes).
+ */
+#define SIGFRAME32		64
+#define FUNCTIONCALLFRAME32	48
+#define PARISC_RT_SIGFRAME_SIZE32					\
+	(((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
+
+#endif
--- include/asm-parisc/compat_siginfo.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ include/asm-parisc/compat_siginfo.h	2003-11-21 06:11:59.000000000 -0500
@@ -0,0 +1,2 @@
+/* We use the generic compat struct */
+#include <asm-generic/compat_siginfo.h>
--- include/asm-parisc/compat_signal.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ include/asm-parisc/compat_signal.h	2003-11-28 06:22:13.000000000 -0500
@@ -0,0 +1,2 @@
+/* Use generic */
+#include <asm-generic/compat_signal.h>
--- include/asm-parisc/compat_ucontext.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ include/asm-parisc/compat_ucontext.h	2003-12-02 23:45:17.000000000 -0500
@@ -0,0 +1,19 @@
+#ifndef _ASM_PARISC_COMPAT_UCONTEXT_H
+#define _ASM_PARISC_COMPAT_UCONTEXT_H
+
+#include<linux/compat.h>
+#include<asm/compat_signal.h>
+
+/* ELF32 ucontext as seen from an ELF64 kernel */
+struct compat_ucontext {
+	compat_uint_t uc_flags;
+	compat_uptr_t uc_link;
+	compat_stack_t uc_stack;	/* struct compat_sigaltstack */
+	
+	compat_uint_t pad[1];		/*FIXME: ELF32 structure is padded */
+	
+	struct compat_sigcontext uc_mcontext;
+	compat_sigset_t uc_sigmask;	/* mask last for extensibility */
+};
+
+#endif /* !_ASM_PARISC_COMPAT_UCONTEXT_H */
--- kernel/compat_signal.c.orig	1969-12-31 19:00:00.000000000 -0500
+++ kernel/compat_signal.c	2003-12-02 23:18:13.000000000 -0500
@@ -0,0 +1,126 @@
+/*
+ *  Copyright (C) 2003 Carlos O'Donell
+ * 
+ *  2003-12-20  Carlos O'Donell
+ *              Copied linux/kernel/compat_signal.c (copy_siginfo_to_user)
+ *              and modified to use compat_siginfo_t for thunking down to
+ *              32-bit userspace with an ELF64 kernel.
+ *              
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/*#define __KERNEL_SYSCALLS__*/
+
+#include <asm/errno.h>
+#include <asm/compat_siginfo.h>
+#include <asm/uaccess.h>
+#include <asm/siginfo.h>
+
+#ifndef HAVE_ARCH_COMPAT_COPY_SIGINFO_TO_USER
+
+int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, siginfo_t *from)
+{
+	int err;
+	compat_siginfo_t compat_from;	
+
+	if (!access_ok (VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
+		return -EFAULT;
+	
+	/*
+	 * If you change siginfo_t structure, please be sure
+	 * this code is fixed accordingly.
+	 * It should never copy any pad contained in the structure
+	 * to avoid security leaks, but must copy the generic
+	 * 3 ints plus the relevant union member.
+	 */
+
+	/* Convert structure, don't leak anything in the copy */
+	memset(&compat_from,'\0',sizeof(compat_siginfo_t));
+	compat_from.si_signo = (compat_int_t)(from->si_signo);
+	compat_from.si_errno = (compat_int_t)(from->si_errno);
+	compat_from.si_code = (compat_int_t)(from->si_code);
+	
+	if (from->si_code < 0)
+		return __copy_to_user(to, &compat_from, sizeof(compat_siginfo_t))
+			? -EFAULT : 0;
+	
+	err = __put_user(compat_from.si_signo, &to->si_signo);
+	err |= __put_user(compat_from.si_errno, &to->si_errno);
+	err |= __put_user(compat_from.si_code, &to->si_code);
+	
+	switch (from->si_code & __SI_MASK) {
+	case __SI_KILL:
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		break;
+	case __SI_TIMER:
+		compat_from.si_pid = (compat_timer_t)(from->si_tid);
+		compat_from.si_overrun = (compat_int_t)(from->si_overrun);
+		compat_from.si_ptr = (compat_uptr_t)((u64)(from->si_ptr) & 0xffffffffUL);
+		err |= __put_user(compat_from.si_tid, &to->si_tid);
+		err |= __put_user(compat_from.si_overrun, &to->si_overrun);
+		err |= __put_user(compat_from.si_ptr, &to->si_ptr);
+		break;
+	case __SI_POLL:
+		compat_from.si_band = (__ARCH_SI_COMPAT_BAND_T)(from->si_band);
+		compat_from.si_fd = (compat_int_t)(from->si_fd);
+		err |= __put_user(compat_from.si_band, &to->si_band);
+		err |= __put_user(compat_from.si_fd, &to->si_fd);
+		break;
+	case __SI_FAULT:
+		compat_from.si_addr = (compat_uptr_t)((u64)(from->si_addr) & 0xffffffffUL);
+		err |= __put_user(compat_from.si_addr, &to->si_addr);
+#ifdef __ARCH_SI_TRAPNO
+		compat_from.si_trapno = (compat_int_t)(from->si_addr);
+		err |= __put_user(compat_from.si_trapno, &to->si_trapno);
+#endif
+		break;
+	case __SI_CHLD:
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		compat_from.si_status = (compat_int_t)(from->si_status);
+		compat_from.si_utime = (compat_clock_t)(from->si_utime);
+		compat_from.si_stime = (compat_clock_t)(from->si_stime);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		err |= __put_user(compat_from.si_status, &to->si_status);
+		err |= __put_user(compat_from.si_utime, &to->si_utime);
+		err |= __put_user(compat_from.si_stime, &to->si_stime);
+		break;
+	case __SI_RT: /* This is not generated by the kernel as of now. */
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		compat_from.si_int = (compat_int_t)(from->si_int);
+		compat_from.si_ptr = (compat_uptr_t)((u64)(from->si_ptr) & 0xffffffffUL);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		err |= __put_user(compat_from.si_int, &to->si_int);
+		err |= __put_user(compat_from.si_ptr, &to->si_ptr);
+		break;
+	default: /* this is just in case for now ... */
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		break;
+	}
+	return err;
+}
+
+#endif



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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: RE: [parisc-linux] [PATCH] ELF32 userspace, ELF64 kernel, and 32-bit signals on hppa. (help needed)
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Xref: news.gmane.org gmane.linux.ports.parisc:20270

Hi Carlos,

Just a stupid question: against which kernel is it foreseen (I just try against
2.4.23-pa1 but failled; but may be I wrongly capture the patch)?

Thanks,
    Joel

>-- Original Message --
>From: Carlos O'Donell <carlos@baldric.uwo.ca>
>To: parisc-linux@lists.parisc-linux.org
>Date: Wed, 3 Dec 2003 02:21:26 -0500
>Subject: [parisc-linux] [PATCH] ELF32 userspace, ELF64 kernel, and 32-bit
>signals on hppa. (help needed)
>
>
>
parisc,

*** Help needed, code broken ...  ***

Currently our siginfo_t and ucontext_t structures delivered to an ELF32
userspace from an ELF64 kernel are not correct. The kernel thinking
userspace is the same bitwidth, writes it's registers an
> values as
64-bits. Architectures like sparc64 and ppc64 have rolled their own
solutions. I wanted to make it a little more generic.

jejb,

Thanks for the initial cleanup and poking me in the right direction!
I promised this out a little while 
>ack, but as a good hacker I'm up too
late to be thinking straight and get the patch out the door.

What does the patch do?
- Add siginfo_t generic compat structure and code to write it to
  userspace.
- Add generic compat signal structures.
- Ad
> generic kernel code to handle this structure.
- Add lots more PARISC compat structures.
- Add code in our signal path to distinguish the process personality and
  learn to setup/restore a 32-bit/64-bit rt frame structure.

There is a bug hiding i
> the code... I can't find it yet.
Userspace sorta works, but sometimes processes go splat, and I think it
has to do with the following:

- In restore_context32 I have to ship the 32-bit value into a 64-bit
  registers. Should it be sign extended?

>= I think yes.
- Is stack address 0xfffffffffaf00410 the same as 0x00000000faf00410?
= No?

What to do?

- Enable debugging in singal.c and signal32.c and keep looking for the
  bug :)

Cheers,
Carlos.

====
 arch/parisc/kernel/signal.c   
>         |  277 +++++++++++++++------------
 arch/parisc/kernel/signal32.c           |  156 +++++++++++++--
 arch/parisc/kernel/signal32.h           |   22 ++
 include/asm-generic/compat_siginfo.h    |  154 +++++++++++++++
 include/asm-generic/comp
>t_signal.h     |   28 ++
 include/asm-parisc/compat.h             |   10
 include/asm-parisc/compat_rt_sigframe.h |   25 ++
 include/asm-parisc/compat_siginfo.h     |    2
 include/asm-parisc/compat_signal.h      |    2
 include/asm-parisc/compat_
>context.h    |   19 +
 include/asm-parisc/rt_sigframe.h        |   13 -
 include/asm-parisc/siginfo.h            |    2
 include/asm-parisc/ucontext.h           |    8
 kernel/Makefile                         |    2
 kernel/compat_signal.c        
>         |  126 ++++++++++++
 kernel/signal.c                         |    8
 16 files changed, 709 insertions(+), 145 deletions(-)
====
--- arch/parisc/kernel/signal.c	9 Nov 2003 18:57:46 -0000	1.14
+++ arch/parisc/kernel/signal.c	3 Dec 2003 06:4
>:32 -0000
@@ -27,19 +27,25 @@
 #include <linux/compat.h>
 #include <linux/elf.h>
 #include <linux/personality.h>
+#include <linux/compat.h>
 #include <asm/ucontext.h>
 #include <asm/rt_sigframe.h>
 #include <asm/uaccess.h>
 #include <asm/pgall
>c.h>
 #include <asm/cacheflush.h>
+#include "signal32.h"
 
-#define DEBUG_SIG 0
+#define DEBUG_SIG 0 
+#define DEBUG_SIG_LEVEL 2
 
 #if DEBUG_SIG
-#define DBG(x)	printk x
+#define DBG(LEVEL, ...) \
+        ((DEBUG_SIG_LEVEL >= LEVEL) \
+	?
>printk(__VA_ARGS__) : (void) 0)
 #else
-#define DBG(x)
+#define DBG(LEVEL, ...)
 #endif
+	
 
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
@@ -52,43 +58,6 @@
 
 int do_signal(sigset_t *oldset, struct pt_regs *regs, int in_sy
>call);
 
-int copy_siginfo_to_user(siginfo_t *to, siginfo_t *from)
-{
-	if (from->si_code < 0)
-		return __copy_to_user(to, from, sizeof(siginfo_t));
-	else {
-		int err;
-
-		/*
-		 * If you change siginfo_t structure, please be sure
-		 * 
>his code is fixed accordingly.  It should never
-		 * copy any pad contained in the structure to avoid
-		 * security leaks, but must copy the generic 3 ints
-		 * plus the relevant union member.
-		 */
-		err = __put_user(from->si_signo, &to->si_
>igno);
-		err |= __put_user(from->si_errno, &to->si_errno);
-		err |= __put_user((short)from->si_code, &to->si_code);
-		switch (from->si_code >> 16) {
-		      case __SI_FAULT >> 16:
-			/* FIXME: should we put the interruption code here? */
-		
>     case __SI_POLL >> 16:
-			err |= __put_user((unsigned long)from->si_addr, &to->si_addr);
-			break;
-		      case __SI_CHLD >> 16:
-			err |= __put_user(from->si_utime, &to->si_utime);
-			err |= __put_user(from->si_stime, &to->si_stime);
-	
>	err |= __put_user(from->si_status, &to->si_status);
-		      default:
-			err |= __put_user(from->si_uid, &to->si_uid);
-			err |= __put_user(from->si_pid, &to->si_pid);
-			break;
-		      /* case __SI_RT: This is not generated by the kernel as 
>f now.  */
-		}
-		return err;
-	}
-}
-
 /*
  * Atomically swap in the new signal mask, and wait for a signal.
  */
@@ -101,26 +70,27 @@ sys_rt_sigsuspend(sigset_t *unewset, siz
 {
 	sigset_t saveset, newset;
 #ifdef __LP64__
-	/* XXX FIXM
> -- assumes 32-bit user app! */
 	compat_sigset_t newset32;
 
-	/* XXX: Don't preclude handling different sized sigset_t's.  */
-	if (sigsetsize != sizeof(compat_sigset_t))
-		return -EINVAL;
-
-	if (copy_from_user(&newset32, (compat_sigset_t *)
>newset, sizeof(newset32)))
-		return -EFAULT;
-
-	newset.sig[0] = newset32.sig[0] | ((unsigned long)newset32.sig[1] << 32);
-#else
-
-	/* XXX: Don't preclude handling different sized sigset_t's.  */
-	if (sigsetsize != sizeof(sigset_t))
-		retu
>n -EINVAL;
-
-	if (copy_from_user(&newset, unewset, sizeof(newset)))
-		return -EFAULT;
+	if(personality(current->personality) == PER_LINUX32){
+		/* XXX: Don't preclude handling different sized sigset_t's.  */
+		if (sigsetsize != sizeof(compat_
>igset_t))
+			return -EINVAL;
+		if (copy_from_user(&newset32, (compat_sigset_t *)unewset, sizeof(newset32)))
+			return -EFAULT;
+		sigset_32to64(&newset,&newset32);
+		
+	} else 
 #endif
+	{
+		/* XXX: Don't preclude handling different sized
>sigset_t's.  */
+		if (sigsetsize != sizeof(sigset_t))
+			return -EINVAL;
+	
+		if (copy_from_user(&newset, unewset, sizeof(newset)))
+			return -EFAULT;
+	}
+
 	sigdelsetmask(&newset, ~_BLOCKABLE);
 
 	spin_lock_irq(&current->sighand->siglo
>k);
@@ -161,7 +131,9 @@ restore_sigcontext(struct sigcontext *sc
 	err |= __copy_from_user(regs->iaoq, sc->sc_iaoq, sizeof(regs->iaoq));
 	err |= __copy_from_user(regs->iasq, sc->sc_iasq, sizeof(regs->iasq));
 	err |= __get_user(regs->sar, &sc->sc_
>ar);
-	DBG(("restore_sigcontext: r28 is %ld\n", regs->gr[28]));
+	DBG(2,"restore_sigcontext: iaoq is 0x%#lx / 0x%#lx\n", 
+			regs->iaoq[0],regs->iaoq[1]);
+	DBG(2,"restore_sigcontext: r28 is %ld\n", regs->gr[28]);
 	return err;
 }
 
@@ -174,6 
>146,9 @@ sys_rt_sigreturn(struct pt_regs *regs, i
 	unsigned long usp = (regs->gr[30] & ~(0x01UL));
 	unsigned long sigframe_size = PARISC_RT_SIGFRAME_SIZE;
 #ifdef __LP64__
+	compat_sigset_t compat_set;
+	struct compat_rt_sigframe * compat_frame;
>
+	
 	if(personality(current->personality) == PER_LINUX32)
 		sigframe_size = PARISC_RT_SIGFRAME_SIZE32;
 #endif
@@ -182,11 +157,23 @@ sys_rt_sigreturn(struct pt_regs *regs, i
 	/* Unwind the user stack to get the rt_sigframe structure. */
 	fram
> = (struct rt_sigframe *)
 		(usp - sigframe_size);
-	DBG(("in sys_rt_sigreturn, frame is %p\n", frame));
-
-	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
-		goto give_sigsegv;
+	DBG(2,"sys_rt_sigreturn: frame is %p\n", frame);
>
 
+#ifdef __LP64__
+	compat_frame = (struct compat_rt_sigframe *)frame;
+	
+	if(personality(current->personality) == PER_LINUX32){
+		DBG(2,"sys_rt_sigreturn: ELF32 process.\n");
+		if (__copy_from_user(&compat_set, &compat_frame->uc.uc_sigmask,
>sizeof(compat_set)))
+			goto give_sigsegv;
+		sigset_32to64(&set,&compat_set);
+	} else
+#endif
+	{
+		if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+			goto give_sigsegv;
+	}
+		
 	sigdelsetmask(&set, ~_BLOCKABLE);
 	spin
>lock_irq(&current->sighand->siglock);
 	current->blocked = set;
@@ -194,17 +181,30 @@ sys_rt_sigreturn(struct pt_regs *regs, i
 	spin_unlock_irq(&current->sighand->siglock);
 
 	/* Good thing we saved the old gr[30], eh? */
-	if (restore_sigconte
>t(&frame->uc.uc_mcontext, regs))
-		goto give_sigsegv;
-
-	DBG(("usp: %#08lx stack %p", usp, &frame->uc.uc_stack));
+#ifdef __LP64__
+	if(personality(current->personality) == PER_LINUX32){
+		DBG(1,"sys_rt_sigreturn: compat_frame->uc.uc_mcontext 
>x%p\n",
+				&compat_frame->uc.uc_mcontext);
+		if (restore_sigcontext32(&compat_frame->uc.uc_mcontext, regs))
+			goto give_sigsegv;
+		DBG(1,"sys_rt_sigreturn: usp %#08lx stack 0x%p\n", 
+				usp, &compat_frame->uc.uc_stack);
+		if (do_sigaltst
>ck32(&compat_frame->uc.uc_stack, NULL, usp) == -EFAULT)
+			goto give_sigsegv;
+	} else
+#endif
+	{
+		DBG(1,"sys_rt_sigreturn: frame->uc.uc_mcontext 0x%p\n",
+				&frame->uc.uc_mcontext);
+		if (restore_sigcontext(&frame->uc.uc_mcontext, regs))
>
+			goto give_sigsegv;
+		DBG(1,"sys_rt_sigreturn: usp %#08lx stack 0x%p\n", 
+				usp, &frame->uc.uc_stack);
+		if (do_sigaltstack(&frame->uc.uc_stack, NULL, usp) == -EFAULT)
+			goto give_sigsegv;
+	}
+		
 
-	/* I don't know why everyone els
> assumes they can call this
-           with a pointer to a stack_t on the kernel stack.  That
-           makes no sense.  Anyway we'll do it like m68k, since we
-           also are using segmentation in the same way as them. */
-	if (do_sigaltst
>ck(&frame->uc.uc_stack, NULL, usp) == -EFAULT)
-		goto give_sigsegv;
 
 	/* If we are on the syscall path IAOQ will not be restored, and
 	 * if we are on the interrupt path we must not corrupt gr31.
@@ -212,14 +212,13 @@ sys_rt_sigreturn(struct p
>_regs *regs, i
 	if (in_syscall)
 		regs->gr[31] = regs->iaoq[0];
 #if DEBUG_SIG
-	DBG(("returning to %#lx\n", regs->iaoq[0]));
-	DBG(("in sys_rt_sigreturn:\n"));
+	DBG(1,"sys_rt_sigreturn: returning to %#lx, DUMPING REGS:\n", regs->iaoq[0]);
 	
>how_regs(regs);
 #endif
 	return;
 
 give_sigsegv:
-	DBG(("sys_rt_sigreturn sending SIGSEGV\n"));
+	DBG(1,"sys_rt_sigreturn: Sending SIGSEGV\n");
 	si.si_signo = SIGSEGV;
 	si.si_errno = 0;
 	si.si_code = SI_KERNEL;
@@ -237,9 +236,16 @@ give_
>igsegv:
 static inline void *
 get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
 {
+	/*FIXME: ELF32 vs. ELF64 has different frame_size, but since we
+	  don't use the parameter it doesn't matter */
+
+	DBG(1,"get_sigfram
>: ka = %#lx, sp = %#lx, frame_size = %#lx\n",
+			(unsigned long)ka, sp, frame_size);
+	
 	if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! on_sig_stack(sp))
 		sp = current->sas_ss_sp; /* Stacks grow up! */
 
+	DBG(1,"get_sigframe: Returning sp = %#
>x\n", (unsigned long)sp);
 	return (void *) sp; /* Stacks grow up.  Fun. */
 }
 
@@ -259,20 +265,20 @@ setup_sigcontext(struct sigcontext *sc, 
 		err |= __put_user(regs->gr[31]+4, &sc->sc_iaoq[1]);
 		err |= __put_user(regs->sr[3], &sc->sc_iasq[
>]);
 		err |= __put_user(regs->sr[3], &sc->sc_iasq[1]);
-		DBG(("setup_sigcontext: iaoq %#lx/%#lx\n",
-			regs->gr[31], regs->gr[31]));
+		DBG(1,"setup_sigcontext: iaoq %#lx / %#lx (in syscall)\n",
+			regs->gr[31], regs->gr[31]+4);
 	} else {
 
>	err |= __copy_to_user(sc->sc_iaoq, regs->iaoq, sizeof(regs->iaoq));
 		err |= __copy_to_user(sc->sc_iasq, regs->iasq, sizeof(regs->iasq));
-		DBG(("setup_sigcontext: iaoq %#lx/%#lx\n", 
-			regs->iaoq[0], regs->iaoq[1]));
+		DBG(1,"setup_sigcontex
>: iaoq %#lx / %#lx (not in syscall)\n", 
+			regs->iaoq[0], regs->iaoq[1]);
 	}
 
 	err |= __put_user(flags, &sc->sc_flags);
 	err |= __copy_to_user(sc->sc_gr, regs->gr, sizeof(regs->gr));
 	err |= __copy_to_user(sc->sc_fr, regs->fr, sizeof(regs-
>fr));
 	err |= __put_user(regs->sar, &sc->sc_sar);
-	DBG(("setup_sigcontext: r28 is %ld\n", regs->gr[28]));
+	DBG(1,"setup_sigcontext: r28 is %ld\n", regs->gr[28]);
 
 	return err;
 }
@@ -286,19 +292,53 @@ setup_rt_frame(int sig, struct k_sigact
>
 	unsigned long haddr, sigframe_size;
 	struct siginfo si;
 	int err = 0;
-
+#ifdef __LP64__
+	compat_int_t compat_val;
+	struct compat_rt_sigframe * compat_frame;
+	compat_sigset_t compat_set;
+#endif
+	
 	usp = (regs->gr[30] & ~(0x01UL));
>
+	/*FIXME: frame_size parameter is unused, remove it. */
 	frame = get_sigframe(ka, usp, sizeof(*frame));
 
-	DBG(("setup_rt_frame 1: frame %p info %p\n", frame, info));
+	DBG(1,"setup_rt_frame: frame %p info %p\n", frame, info);
 
-	err |= __co
>y_to_user(&frame->info, info, sizeof(siginfo_t));
-	err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
-	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
-	err |= __put_user(sas_ss_flags(regs->gr[30]),
-			  &fra
>e->uc.uc_stack.ss_flags);
-	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, in_syscall);
-	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+	
+#ifdef __LP64__
+
+	compat_frame = (struct compat_rt_sigframe *)frame;
+	
+	if
>personality(current->personality) == PER_LINUX32) {
+		DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &compat_frame->info);
+		err |= compat_copy_siginfo_to_user(&compat_frame->info, info);
+		compat_val = (compat_int_t)current->sas_ss_sp;
+		err |=
>__put_user(compat_val, &compat_frame->uc.uc_stack.ss_sp);
+		compat_val = (compat_int_t)current->sas_ss_size;
+		err |= __put_user(compat_val, &compat_frame->uc.uc_stack.ss_size);
+		compat_val = sas_ss_flags(regs->gr[30]);		
+		err |= __put_user(c
>mpat_val, &compat_frame->uc.uc_stack.ss_flags);		
+		DBG(1,"setup_rt_frame: frame->uc = 0x%p\n", &compat_frame->uc);
+		DBG(1,"setup_rt_frame: frame->uc.uc_mcontext = 0x%p\n", &compat_frame->uc.uc_mcontext);
+		err |= setup_sigcontext32(&compat_fram
>->uc.uc_mcontext, regs, in_syscall);
+		sigset_64to32(&compat_set,set);
+		err |= __copy_to_user(&compat_frame->uc.uc_sigmask, &compat_set, sizeof(compat_set));
+	} else
+#endif
+	{	
+		DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &frame->info);
>
+		err |= copy_siginfo_to_user(&frame->info, info);
+		err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
+		err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+		err |= __put_user(sas_ss_flags(regs->gr[30]),
+			
>  &frame->uc.uc_stack.ss_flags);
+		DBG(1,"setup_rt_frame: frame->uc = 0x%p\n", &frame->uc);
+		DBG(1,"setup_rt_frame: frame->uc.uc_mcontext = 0x%p\n", &frame->uc.uc_mcontext);
+		err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, in_syscall);
+
>	/* FIXME: Should probably be converted aswell for the compat case */
+		err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+	}
+	
 	if (err)
 		goto give_sigsegv;
 
@@ -315,8 +355,8 @@ setup_rt_frame(int sig, struct k_sigacti
 	{
>
 		int sid;
 		asm ("mfsp %%sr3,%0" : "=r" (sid));
-		DBG(("flushing 64 bytes at space %#x offset %p\n",
-		       sid, frame->tramp));
+		DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
+		       sid, frame->tramp);
 	}
 #e
>dif
 
@@ -359,8 +399,8 @@ setup_rt_frame(int sig, struct k_sigacti
 		
 		haddr = fdesc.addr;
 		regs->gr[19] = fdesc.gp;
-		DBG(("64 bit signal, exe=%#lx, r19=%#lx, in_syscall=%d\n",
-		     haddr, regs->gr[19], in_syscall));
+		DBG(1,"setup_r
>_frame: 64 bit signal, exe=%#lx, r19=%#lx, in_syscall=%d\n",
+		     haddr, regs->gr[19], in_syscall);
 	}
 #endif
 
@@ -391,24 +431,33 @@ setup_rt_frame(int sig, struct k_sigacti
 
 	regs->gr[2]  = rp;                /* userland return pointer 
>/
 	regs->gr[26] = sig;               /* signal number */
-	regs->gr[25] = A(&frame->info); /* siginfo pointer */
-	regs->gr[24] = A(&frame->uc);   /* ucontext pointer */
 	
-	DBG(("making sigreturn frame: %#lx + %#x = %#lx\n",
+#ifdef __LP64__

>	if(personality(current->personality) == PER_LINUX32){
+		regs->gr[25] = A(&compat_frame->info); /* siginfo pointer */
+		regs->gr[24] = A(&compat_frame->uc);   /* ucontext pointer */
+	} else
+#endif
+	{		
+		regs->gr[25] = A(&frame->info); /* s
>ginfo pointer */
+		regs->gr[24] = A(&frame->uc);   /* ucontext pointer */
+	}
+	
+	DBG(1,"setup_rt_frame: making sigreturn frame: %#lx + %#lx = %#lx\n",
 	       regs->gr[30], sigframe_size,
-	       regs->gr[30] + sigframe_size));
+	       reg
>->gr[30] + sigframe_size);
 	/* Raise the user stack pointer to make a proper call frame. */
 	regs->gr[30] = (A(frame) + sigframe_size);
 
 
-	DBG(("SIG deliver (%s:%d): frame=0x%p sp=%#lx iaoq=%#lx/%#lx rp=%#lx\n",
+	DBG(1,"setup_rt_frame: sig 
>eliver (%s,%d) frame=0x%p sp=%#lx iaoq=%#lx/%#lx rp=%#lx\n",
 	       current->comm, current->pid, frame, regs->gr[30],
-	       regs->iaoq[0], regs->iaoq[1], rp));
+	       regs->iaoq[0], regs->iaoq[1], rp);
 
 	return 1;
 
 give_sigsegv:
-	DB
>(("setup_rt_frame sending SIGSEGV\n"));
+	DBG(1,"setup_rt_frame: sending SIGSEGV\n");
 	if (sig == SIGSEGV)
 		ka->sa.sa_handler = SIG_DFL;
 	si.si_signo = SIGSEGV;
@@ -431,8 +480,8 @@ handle_signal(unsigned long sig, siginfo
 {
 	struct k_sigac
>ion *ka = &current->sighand->action[sig-1];
 
-	DBG(("handle_signal(sig=%ld, ka=%p, info=%p, oldset=%p, regs=%p)\n",
-	       sig, ka, info, oldset, regs));
+	DBG(1,"handle_signal: sig=%ld, ka=%p, info=%p, oldset=%p, regs=%p\n",
+	       sig, ka, 
>nfo, oldset, regs);
 	
 	/* Set up the stack frame */
 	if (!setup_rt_frame(sig, ka, info, oldset, regs, in_syscall))
@@ -470,8 +519,8 @@ do_signal(sigset_t *oldset, struct pt_re
 	struct k_sigaction *ka;
 	int signr;
 
-	DBG(("do_signal(oldset
>0x%p, regs=0x%p, sr7 %#lx, pending %d, in_syscall=%d\n",
-	       oldset, regs, regs->sr[7], current->sigpending, in_syscall));
+	DBG(1,"\ndo_signal: oldset=0x%p, regs=0x%p, sr7 %#lx, in_syscall=%d\n",
+	       oldset, regs, regs->sr[7], in_syscall)
>
 
 	/* Everyone else checks to see if they are in kernel mode at
 	   this point and exits if that's the case.  I'm not sure why
@@ -481,12 +530,13 @@ do_signal(sigset_t *oldset, struct pt_re
 	if (!oldset)
 		oldset = &current->blocked;
 
-	D
>G(("do_signal: oldset %08lx:%08lx\n", 
-		oldset->sig[0], oldset->sig[1]));
+	DBG(1,"do_signal: oldset %08lx / %08lx\n", 
+		oldset->sig[0], oldset->sig[1]);
 
 
 	signr = get_signal_to_deliver(&info, regs, NULL);
-	/* printk("do_signal: signr =
>%d, regs->gr[28] = %ld\n", signr, regs->gr[28]); */
+	DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]);

+	
 	if (signr > 0) {
 		/* Restart a system call if necessary. */
 		if (in_syscall) {
@@ -495,14 +545,14 @@ do_sig
>al(sigset_t *oldset, struct pt_re
 		        case -ERESTART_RESTARTBLOCK:
 				current_thread_info()->restart_block.fn = do_no_restart_syscall;
 			case -ERESTARTNOHAND:
-				DBG(("ERESTARTNOHAND: returning -EINTR\n"));
+				DBG(1,"ERESTARTNOHAND:
>returning -EINTR\n");
 				regs->gr[28] = -EINTR;
 				break;
 
 			case -ERESTARTSYS:
 				ka = &current->sighand->action[signr-1];
 				if (!(ka->sa.sa_flags & SA_RESTART)) {
-					DBG(("ERESTARTSYS: putting -EINTR\n"));
+					DBG(1,"ERESTART
>YS: putting -EINTR\n");
 					regs->gr[28] = -EINTR;
 					break;
 				}
@@ -521,9 +571,8 @@ do_signal(sigset_t *oldset, struct pt_re
 		   delivery failed, we need to continue to iterate in
 		   this loop so we can deliver the SIGSEGV... */
 	
>if (handle_signal(signr, &info, oldset, regs, in_syscall)) {
-			DBG((KERN_DEBUG
-				"Exiting do_signal (success), regs->gr[28] = %ld\n",
-				regs->gr[28]));
+			DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n",
+				regs->gr[2
>]);
 			return 1;
 		}
 	}
@@ -577,8 +626,8 @@ do_signal(sigset_t *oldset, struct pt_re
 		}
 	}
 	
-	DBG(("Exiting do_signal (not delivered), regs->gr[28] = %ld\n", 
-		regs->gr[28]));
+	DBG(1,"do_signal: Exit (not delivered), regs->gr[28] =
>%ld\n", 
+		regs->gr[28]);
 
 	return 0;
 }
--- arch/parisc/kernel/signal32.c	29 Jul 2003 17:00:41 -0000	1.1
+++ arch/parisc/kernel/signal32.c	3 Dec 2003 06:49:32 -0000
@@ -10,20 +10,32 @@
 #include <linux/types.h>
 #include <linux/errno.h>
 
>
+#include <asm/compat_signal.h>
 #include <asm/uaccess.h>
+
+#include "signal32.h"
 #include "sys32.h"
 
-struct k_sigaction32 {
-	struct sigaction32 sa;
-};
+#define DEBUG_COMPAT_SIG 0 
+#define DEBUG_COMPAT_SIG_LEVEL 2
+
+#if DEBUG_COMPA
>_SIG
+#define DBG(LEVEL, ...) \
+	((DEBUG_COMPAT_SIG_LEVEL >= LEVEL) \
+	? printk(__VA_ARGS__) : (void) 0)
+#else
+#define DBG(LEVEL, ...)
+#endif
 
-static inline void
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+inline v
>id
 sigset_32to64(sigset_t *s64, compat_sigset_t *s32)
 {
 	s64->sig[0] = s32->sig[0] | ((unsigned long)s32->sig[1] << 32);
 }
 
-static inline void
+inline void
 sigset_64to32(compat_sigset_t *s32, sigset_t *s64)
 {
 	s32->sig[0] = s64->sig[
>] & 0xffffffffUL;
@@ -120,16 +132,10 @@ sys32_rt_sigaction(int sig, const struct
 	return ret;
 }
 
-typedef struct {
-	unsigned int ss_sp;
-	int ss_flags;
-	compat_size_t ss_size;
-} stack_t32;
-
 int 
-do_sigaltstack32 (const stack_t32 *u
>s32, stack_t32 *uoss32, unsigned long sp)
+do_sigaltstack32 (const compat_stack_t *uss32, compat_stack_t *uoss32, unsigned
long sp)
 {
-	stack_t32 ss32, oss32;
+	compat_stack_t ss32, oss32;
 	stack_t ss, oss;
 	stack_t *ssp = NULL, *ossp = NULL;

> 	int ret;
@@ -159,4 +165,128 @@ do_sigaltstack32 (const stack_t32 *uss32
 	}
 
 	return ret;
+}
+
+long
+restore_sigcontext32(struct compat_sigcontext *sc, struct pt_regs *regs)
+{
+	long err = 0;
+	compat_int_t compat_reg;
+	int regn;
+	
>
+	/* When loading 32-bit values into 64-bit registers make
+	   sure to clear the upper 32-bits */
+	DBG(2,"restore_sigcontext32: PER_LINUX32 process\n");
+	DBG(2,"restore_sigcontext32: sc = 0x%p, regs = 0x%p\n",sc,regs);
+	DBG(2,"restore_sigconte
>t32: compat_sigcontext is %#lx bytes\n", sizeof(*sc));
+	for(regn=0; regn < 32; regn++){
+		err |= __get_user(compat_reg,&sc->sc_gr[regn]);
+		regs->gr[regn] = compat_reg;
+	}
+	DBG(2,"restore_sigcontext32: sc->sc_fr = 0x%p\n",sc->sc_fr);
+	/* XX
>: BE WARNED FR's are 64-BIT! */
+	err |= __copy_from_user(regs->fr, sc->sc_fr, sizeof(regs->fr));
+		
+	/* Better safe than sorry, pass __get_user two things of
+	   the same size and let gcc do the upward conversion to 
+	   64-bits */		
+	err |
> __get_user(compat_reg, &sc->sc_iaoq[0]);
+	DBG(2,"restore_sigcontext32: sc->sc_iaoq[0] = %p => %#x\n",
+				&sc->sc_iaoq[0],compat_reg);
+	regs->iaoq[0] = compat_reg;
+	err |= __get_user(compat_reg, &sc->sc_iaoq[1]);
+	DBG(2,"restore_sigcontext32
> sc->sc_iaoq[1] = %p => %#x\n",
+				&sc->sc_iaoq[1],compat_reg);
+	regs->iaoq[1] = compat_reg;
+	DBG(2,"restore_sigcontext32: iaoq is %#lx / %#lx\n", 
+		regs->iaoq[0],regs->iaoq[1]);		
+	
+	err |= __get_user(compat_reg, &sc->sc_iasq[0]);
+	reg
>->iasq[0] = compat_reg;
+	err |= __get_user(compat_reg, &sc->sc_iasq[1]);
+	regs->iasq[1] = compat_reg;
+	DBG(2,"restore_sigcontext32: iasq is %#lx / %#lx\n", 
+		regs->iasq[0],regs->iasq[1]);		
+
+	err |= __get_user(compat_reg, &sc->sc_sar);
+	
>egs->sar = compat_reg;
+	
+	DBG(2,"restore_sigcontext32: r28 is %ld\n", regs->gr[28]);
+	return err;
+}
+
+/*
+ * Set up the sigcontext structure for this process.
+ * This is not an easy task if the kernel is 64-bit, it will require
+ * that 
>e examine the process personality to determine if we need to
+ * truncate for a 32-bit userspace.
+ */
+long
+setup_sigcontext32(struct compat_sigcontext *sc, struct pt_regs *regs, int
in_syscall)
+		 
+{
+	compat_int_t flags = 0;
+	long err = 
>;
+	compat_int_t compat_reg;
+	int regn;
+	
+	if (on_sig_stack((unsigned long) sc))
+		flags |= PARISC_SC_FLAG_ONSTACK;
+	
+	if (in_syscall) {
+		DBG(1,"setup_sigcontext32: in_syscall\n");
+		flags |= PARISC_SC_FLAG_IN_SYSCALL;
+		/* Truncate
>gr31 */
+		compat_reg = (compat_int_t)(regs->gr[31]);
+		DBG(2,"setup_sigcontext32: sc->sc_iaoq[0] = %p <= %#x\n",
+				&sc->sc_iaoq[0],compat_reg);
+		/* regs->iaoq is undefined in the syscall return path */
+		err |= __put_user(compat_reg, &sc->
>c_iaoq[0]);
+		compat_reg = (compat_int_t)(regs->gr[31]+4);
+		DBG(2,"setup_sigcontext32: sc->sc_iaoq[1] = %p <= %#x\n",
+				&sc->sc_iaoq[1],compat_reg);
+		err |= __put_user(compat_reg, &sc->sc_iaoq[1]);
+		/* Truncate sr3 */
+		compat_reg = (c
>mpat_int_t)(regs->sr[3]);
+		err |= __put_user(compat_reg, &sc->sc_iasq[0]);
+		err |= __put_user(compat_reg, &sc->sc_iasq[1]);		
+		
+		DBG(1,"setup_sigcontext32: iaoq %#lx / %#lx\n",
+			regs->gr[31], regs->gr[31]+4);
+	} else {
+		compat_reg 
> (compat_int_t)(regs->iaoq[0]);
+		DBG(2,"setup_sigcontext32: sc->sc_iaoq[0] = %p <= %#x\n",
+				&sc->sc_iaoq[0],compat_reg);
+		err |= __put_user(compat_reg, &sc->sc_iaoq[0]);
+		compat_reg = (compat_int_t)(regs->iaoq[1]);
+		DBG(2,"setup_sigcon
>ext32: sc->sc_iaoq[1] = %p <= %#x\n",
+				&sc->sc_iaoq[1],compat_reg);
+		err |= __put_user(compat_reg, &sc->sc_iaoq[1]);
+		
+		compat_reg = (compat_int_t)(regs->iasq[0]);
+		err |= __put_user(compat_reg, &sc->sc_iasq[0]);
+		compat_reg = (comp
>t_int_t)(regs->iasq[1]);
+		err |= __put_user(compat_reg, &sc->sc_iasq[1]);
+		
+		DBG(1,"setup_sigcontext32: iaoq %#lx / %#lx\n", 
+			regs->iaoq[0], regs->iaoq[1]);
+	}
+
+	err |= __put_user(flags, &sc->sc_flags);
+	
+	DBG(1,"setup_sigcontex
>32: Truncating.\n");
+	for(regn=0; regn < 32; regn++){
+		/* Truncate a general register */
+		compat_reg = (compat_int_t)(regs->gr[regn]);
+		err |= __put_user(compat_reg, &sc->sc_gr[regn]);
+	}
+	/* Copy the floating point registers (same size)
> */
+	/* XXX: BE WARNED FR's are 64-BIT! */
+	err |= __copy_to_user(sc->sc_fr, regs->fr, sizeof(regs->fr));
+	compat_reg = (compat_int_t)(regs->sar);
+	err |= __put_user(compat_reg, &sc->sc_sar);
+
+	DBG(1,"setup_sigcontext32: r28 is %ld\n", regs
>>gr[28]);
+
+	return err;
 }
--- include/asm-parisc/compat.h	28 Oct 2003 06:55:24 -0000	1.2
+++ include/asm-parisc/compat.h	3 Dec 2003 06:49:35 -0000
@@ -24,6 +24,7 @@ typedef u16	compat_nlink_t;
 typedef u16	compat_ipc_pid_t;
 typedef s32	comp
>t_daddr_t;
 typedef u32	compat_caddr_t;
+typedef u32	compat_timer_t;
 
 typedef s32	compat_int_t;
 typedef s32	compat_long_t;
@@ -99,6 +100,15 @@ struct compat_statfs {
 	s32		f_namelen;
 	s32		f_frsize;
 	s32		f_spare[5];
+};
+
+struct com
>at_sigcontext {
+	compat_int_t sc_flags;
+	compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
+	u64 sc_fr[32]; /* FIXME, do we need other state info? */
+	compat_int_t sc_iasq[2];
+	compat_int_t sc_iaoq[2];
+	compat_int_t sc_sar; /* cr11 */
 };
 
 
>define COMPAT_RLIM_INFINITY 0xffffffff
--- include/asm-parisc/rt_sigframe.h	24 Sep 2003 17:54:31 -0000	1.2
+++ include/asm-parisc/rt_sigframe.h	3 Dec 2003 06:49:35 -0000
@@ -1,22 +1,13 @@
 #ifndef _ASM_PARISC_RT_SIGFRAME_H
 #define _ASM_PARISC_RT_
>IGFRAME_H
 
+#include <asm/compat_rt_sigframe.h>
+
 struct rt_sigframe {
 	unsigned int tramp[4];
 	struct siginfo info;
 	struct ucontext uc;
 };
-
-/*
- * The 32-bit ABI wants at least 48 bytes for a function call frame:
- * 16 bytes for 
>rg0-arg3, and 32 bytes for magic (the only part of
- * which Linux/parisc uses is sp-20 for the saved return pointer...)
- * Then, the stack pointer must be rounded to a cache line (64 bytes).
- */
-#define SIGFRAME32		64
-#define FUNCTIONCALLFRAM
>32	48
-#define PARISC_RT_SIGFRAME_SIZE32					\
-	(((sizeof(struct rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
 
 #ifdef __LP64__
 #define	SIGFRAME		128
--- include/asm-parisc/siginfo.h	29 Jul 2003 17:02:04 -0000	1.1
+++ incl
>de/asm-parisc/siginfo.h	3 Dec 2003 06:49:35 -0000
@@ -1,8 +1,6 @@
 #ifndef _PARISC_SIGINFO_H
 #define _PARISC_SIGINFO_H
 
-#define HAVE_ARCH_COPY_SIGINFO_TO_USER
-
 #include <asm-generic/siginfo.h>
 
 /*
--- include/asm-parisc/ucontext.h	29 J
>l 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/ucontext.h	3 Dec 2003 06:49:35 -0000
@@ -1,12 +1,12 @@
-#ifndef _ASMPARISC_UCONTEXT_H
-#define _ASMPARISC_UCONTEXT_H
+#ifndef _ASM_PARISC_UCONTEXT_H
+#define _ASM_PARISC_UCONTEXT_H
 
 struct ucon
>ext {
-	unsigned long	  uc_flags;
+	unsigned int	  uc_flags;
 	struct ucontext  *uc_link;
 	stack_t		  uc_stack;
 	struct sigcontext uc_mcontext;
 	sigset_t	  uc_sigmask;	/* mask last for extensibility */
 };
 
-#endif /* !_ASMPARISC_UCONTEXT_
> */
+#endif /* !_ASM_PARISC_UCONTEXT_H */
--- kernel/Makefile	8 Oct 2003 20:53:06 -0000	1.6
+++ kernel/Makefile	3 Dec 2003 06:49:35 -0000
@@ -5,7 +5,7 @@
 obj-y     = sched.o fork.o exec_domain.o panic.o printk.o profile.o \
 	    exit.o itimer.o
>time.o softirq.o resource.o \
 	    sysctl.o capability.o ptrace.o timer.o user.o \
-	    signal.o sys.o kmod.o workqueue.o pid.o \
+	    compat_signal.o signal.o sys.o kmod.o workqueue.o pid.o \
 	    rcupdate.o intermodule.o extable.o params.o po
>ix-timers.o
 
 obj-$(CONFIG_FUTEX) += futex.o
--- kernel/signal.c	24 Nov 2003 03:16:26 -0000	1.8
+++ kernel/signal.c	3 Dec 2003 06:49:35 -0000
@@ -24,9 +24,11 @@
 #include <linux/binfmts.h>
 #include <linux/security.h>
 #include <linux/ptrace.h
>
+#include <linux/personality.h>
 #include <asm/param.h>
 #include <asm/uaccess.h>
 #include <asm/siginfo.h>
+#include <asm/compat_siginfo.h>
 
 /*
  * SLAB caches for signal bits.
@@ -2006,6 +2008,12 @@ int copy_siginfo_to_user(siginfo_t __us
>
 	if (from->si_code < 0)
 		return __copy_to_user(to, from, sizeof(siginfo_t))
 			? -EFAULT : 0;
+
+	/* Use compat_siginfo_t with 32-bit signals */
+	if(personality(current->personality) == PER_LINUX32){
+		return compat_copy_siginfo_to_user((
>ompat_siginfo_t __user *)to,from);
+	}
+	
 	/*
 	 * If you change siginfo_t structure, please be sure
 	 * this code is fixed accordingly.
--- arch/parisc/kernel/signal32.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ arch/parisc/kernel/signal32
>h	2003-11-28 15:18:40.000000000 -0500
@@ -0,0 +1,22 @@
+#ifndef _PARISC64_KERNEL_SIGNAL32_H
+#define _PARISC64_KERNEL_SIGNAL32_H
+
+#include <linux/compat.h>
+#include <asm/compat_signal.h>
+
+/* ELF32 signal handling */
+
+struct k_sigaction
>2 {
+	struct compat_sigaction sa;
+};
+
+void sigset_32to64(sigset_t *s64, compat_sigset_t *s32);
+void sigset_64to32(compat_sigset_t *s32, sigset_t *s64);
+int do_sigaltstack32 (const compat_stack_t *uss32, 
+		compat_stack_t *uoss32, unsigned 
>ong sp);
+long restore_sigcontext32(struct compat_sigcontext *sc, 
+		struct pt_regs *regs);
+long setup_sigcontext32(struct compat_sigcontext *sc, 
+		struct pt_regs *regs, int in_syscall);
+
+#endif
--- include/asm-generic/compat_siginfo.h.ori
>	1969-12-31 19:00:00.000000000 -0500
+++ include/asm-generic/compat_siginfo.h	2003-11-28 07:49:19.000000000 -0500
@@ -0,0 +1,154 @@
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <linux/compat.h>
+
+#ifndef _ASM_GENERIC_COMPAT_
>IGINFO_H
+#define _ASM_GENERIC_COMPAT_SIGINFO_H
+
+/* compat view of sigval_t */
+typedef union compat_sigval {
+	compat_int_t sival_int;
+	compat_uptr_t sival_ptr;
+} compat_sigval_t;
+
+/*
+ * This is the size (including padding) of the par
> of the
+ * struct siginfo that is before the union.
+ */
+#ifndef __ARCH_SI_COMPAT_PREAMBLE_SIZE
+#define __ARCH_SI_COMPAT_PREAMBLE_SIZE	(3 * sizeof(int))
+#endif
+
+#define SI_COMPAT_MAX_SIZE	128
+#ifndef SI_COMPAT_PAD_SIZE
+#define SI_COMPA
>_PAD_SIZE	((SI_COMPAT_MAX_SIZE - __ARCH_SI_COMPAT_PREAMBLE_SIZE) / sizeof(int))
+#endif
+
+/* ELF32 view of si.uid_t */
+#ifndef __ARCH_SI_COMPAT_UID_T
+#define __ARCH_SI_COMPAT_UID_T compat_uid_t
+#endif
+
+/* ELF32 view of si.band_t */
+#ifn
>ef __ARCH_SI_COMPAT_BAND_T
+#define __ARCH_SI_COMPAT_BAND_T compat_int_t
+#endif
+
+#ifndef HAVE_ARCH_COMPAT_SIGINFO_T
+
+/* Compat (ELF32) view of siginfo_t */
+typedef struct compat_siginfo {
+	compat_int_t si_signo;
+	compat_int_t si_errno;
>
+	compat_int_t si_code;
+
+	union {
+		compat_int_t _pad[SI_COMPAT_PAD_SIZE];
+
+		/* kill() */
+		struct {
+			compat_pid_t _pid;	/* sender's pid */
+			__ARCH_SI_COMPAT_UID_T _uid;	/* sender's uid */
+		} _kill;
+
+		/* POSIX.1b timers */
>
+		struct {
+			compat_timer_t _tid;	/* timer id */
+			compat_int_t _overrun;		/* overrun count */
+			char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
+			compat_sigval_t _sigval;	/* same as below */
+			compat_int_t _sys_private;       /* no
> to be passed to user */
+		} _timer;
+
+		/* POSIX.1b signals */
+		struct {
+			compat_pid_t _pid;		/* sender's pid */
+			__ARCH_SI_COMPAT_UID_T _uid;	/* sender's uid */
+			compat_sigval_t _sigval;
+		} _rt;
+
+		/* SIGCHLD */
+		struct 
>
+			compat_pid_t _pid;		/* which child */
+			__ARCH_SI_COMPAT_UID_T _uid;	/* sender's uid */
+			compat_int_t _status;		/* exit code */
+			compat_clock_t _utime;
+			compat_clock_t _stime;
+		} _sigchld;
+
+		/* SIGILL, SIGFPE, SIGSEGV, SIGB
>S */
+		struct {
+			compat_uptr_t _addr; /* faulting insn/memory ref. */
+#ifdef __ARCH_SI_TRAPNO
+			compat_int_t _trapno;	/* TRAP # which caused the signal */
+#endif
+		} _sigfault;
+
+		/* SIGPOLL */
+		struct {
+			__ARCH_SI_COMPAT_BAND
>T _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
+			compat_int_t _fd;
+		} _sigpoll;
+	} _sifields;
+} compat_siginfo_t;
+#endif
+
+/*
+ * sigevent definitions
+ * 
+ * It seems likely that SIGEV_THREAD will have to be handled from 
+ * userspace
> libpthread transmuting it to SIGEV_SIGNAL, which the
+ * thread manager then catches and does the appropriate nonsense.
+ * However, everything is written out here so as to not get lost.
+ */
+
+#define SIGEV_COMPAT_MAX_SIZE	64
+#ifndef SIGEV_CO
>PAT_PAD_SIZE
+#define SIGEV_COMPAT_PAD_SIZE	((SIGEV_COMPAT_MAX_SIZE/sizeof(int)) - 3)
+#endif
+
+#ifndef HAVE_ARCH_COMPAT_SIGEVENT_T
+
+/* ELF32 view of sigevent_t */
+typedef struct compat_sigevent {
+	compat_sigval_t sigev_value;
+	compat_in
>_t sigev_signo;
+	compat_int_t sigev_notify;
+	union {
+		compat_int_t _pad[SIGEV_COMPAT_PAD_SIZE];
+		compat_int_t _tid;
+
+		struct {
+			compat_uptr_t _function;
+			compat_uptr_t _attribute;	/* really pthread_attr_t */
+		} _sigev_thread;

>+	} _sigev_un;
+} compat_sigevent_t;
+
+#endif
+
+#ifdef __KERNEL__
+
+struct compat_siginfo;
+/*void do_schedule_next_timer(struct siginfo *info);*/
+
+#ifndef HAVE_ARCH_COMPAT_COPY_SIGINFO
+
+#include <linux/string.h>
+
+static inline v
>id compat_copy_siginfo(struct compat_siginfo *to, struct compat_siginfo
*from)
+{
+	if (from->si_code < 0)
+		memcpy(to, from, sizeof(*to));
+	else
+		/* _sigchld is currently the largest know union member */
+		memcpy(to, from, __ARCH_SI_COMPAT_
>REAMBLE_SIZE + sizeof(from->_sifields._sigchld));
+}
+
+#endif
+
+extern int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, struct
siginfo *from);
+
+#endif /* __KERNEL__ */
+
+#endif
--- include/asm-generic/compat_signal.h.orig	196
>-12-31 19:00:00.000000000 -0500
+++ include/asm-generic/compat_signal.h	2003-12-02 23:01:44.000000000 -0500
@@ -0,0 +1,28 @@
+#ifndef _ASM_GENERIC_COMPAT_SIGNAL_H
+#define _ASM_GENERIC_COMPAT_SIGNAL_H
+
+# ifndef __ASSEMBLY__
+#  include <linux/
>ypes.h>
+
+typedef compat_uptr_t compat_sighandler_t;
+
+typedef struct compat_sigaltstack {
+	compat_uptr_t ss_sp;
+	compat_int_t ss_flags;
+	compat_size_t ss_size;
+} compat_stack_t;
+
+#  ifdef __KERNEL__
+
+/* Most things should be clea
> enough to redefine this at will, if care
+   is taken to make libc match.  */
+
+struct compat_sigaction {
+	compat_sighandler_t sa_handler;
+	compat_uint_t sa_flags;
+	compat_sigset_t sa_mask;		/* mask last for extensibility */
+};
+
+#  end
>f /* __KERNEL__ */
+# endif /* !__ASSEMBLY */
+#endif /* _ASM_GENERIC_COMPAT_SIGNAL_H */
--- include/asm-parisc/compat_rt_sigframe.h.orig	1969-12-31 19:00:00.000000000
-0500
+++ include/asm-parisc/compat_rt_sigframe.h	2003-12-02 23:11:20.000000000

>0500
@@ -0,0 +1,25 @@
+#include<linux/compat.h>
+#include<asm/compat_siginfo.h>
+#include<asm/compat_ucontext.h>
+
+#ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H
+#define _ASM_PARISC_COMPAT_RT_SIGFRAME_H
+
+struct compat_rt_sigframe {
+	compat_uin
>_t tramp[4];
+	compat_siginfo_t info;
+	struct compat_ucontext uc;
+};
+
+/*
+ * The 32-bit ABI wants at least 48 bytes for a function call frame:
+ * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of
+ * which Linux/parisc uses 
>s sp-20 for the saved return pointer...)
+ * Then, the stack pointer must be rounded to a cache line (64 bytes).
+ */
+#define SIGFRAME32		64
+#define FUNCTIONCALLFRAME32	48
+#define PARISC_RT_SIGFRAME_SIZE32					\
+	(((sizeof(struct compat_rt_si
>frame) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
+
+#endif
--- include/asm-parisc/compat_siginfo.h.orig	1969-12-31 19:00:00.000000000
-0500
+++ include/asm-parisc/compat_siginfo.h	2003-11-21 06:11:59.000000000 -0500
@@ -0,0 +1,2 @@
+/* 
>e use the generic compat struct */
+#include <asm-generic/compat_siginfo.h>
--- include/asm-parisc/compat_signal.h.orig	1969-12-31 19:00:00.000000000
-0500
+++ include/asm-parisc/compat_signal.h	2003-11-28 06:22:13.000000000 -0500
@@ -0,0 +1,2 @@

>/* Use generic */
+#include <asm-generic/compat_signal.h>
--- include/asm-parisc/compat_ucontext.h.orig	1969-12-31 19:00:00.000000000
-0500
+++ include/asm-parisc/compat_ucontext.h	2003-12-02 23:45:17.000000000 -0500
@@ -0,0 +1,19 @@
+#ifndef _ASM
>PARISC_COMPAT_UCONTEXT_H
+#define _ASM_PARISC_COMPAT_UCONTEXT_H
+
+#include<linux/compat.h>
+#include<asm/compat_signal.h>
+
+/* ELF32 ucontext as seen from an ELF64 kernel */
+struct compat_ucontext {
+	compat_uint_t uc_flags;
+	compat_uptr_t
>uc_link;
+	compat_stack_t uc_stack;	/* struct compat_sigaltstack */
+	
+	compat_uint_t pad[1];		/*FIXME: ELF32 structure is padded */
+	
+	struct compat_sigcontext uc_mcontext;
+	compat_sigset_t uc_sigmask;	/* mask last for extensibility */
+};

>+
+#endif /* !_ASM_PARISC_COMPAT_UCONTEXT_H */
--- kernel/compat_signal.c.orig	1969-12-31 19:00:00.000000000 -0500
+++ kernel/compat_signal.c	2003-12-02 23:18:13.000000000 -0500
@@ -0,0 +1,126 @@
+/*
+ *  Copyright (C) 2003 Carlos O'Donell
+ * 

>+ *  2003-12-20  Carlos O'Donell
+ *              Copied linux/kernel/compat_signal.c (copy_siginfo_to_user)
+ *              and modified to use compat_siginfo_t for thunking down to
+ *              32-bit userspace with an ELF64 kernel.
+ *     
>        
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) an
> later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT.
> See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 0
>139, USA.
+ *
+ */
+
+/*#define __KERNEL_SYSCALLS__*/
+
+#include <asm/errno.h>
+#include <asm/compat_siginfo.h>
+#include <asm/uaccess.h>
+#include <asm/siginfo.h>
+
+#ifndef HAVE_ARCH_COMPAT_COPY_SIGINFO_TO_USER
+
+int compat_copy_siginf
>_to_user(compat_siginfo_t __user *to, siginfo_t *from)
+{
+	int err;
+	compat_siginfo_t compat_from;	
+
+	if (!access_ok (VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
+		return -EFAULT;
+	
+	/*
+	 * If you change siginfo_t structure, please be
>sure
+	 * this code is fixed accordingly.
+	 * It should never copy any pad contained in the structure
+	 * to avoid security leaks, but must copy the generic
+	 * 3 ints plus the relevant union member.
+	 */
+
+	/* Convert structure, don't leak
>anything in the copy */
+	memset(&compat_from,'\0',sizeof(compat_siginfo_t));
+	compat_from.si_signo = (compat_int_t)(from->si_signo);
+	compat_from.si_errno = (compat_int_t)(from->si_errno);
+	compat_from.si_code = (compat_int_t)(from->si_code);

>	
+	if (from->si_code < 0)
+		return __copy_to_user(to, &compat_from, sizeof(compat_siginfo_t))
+			? -EFAULT : 0;
+	
+	err = __put_user(compat_from.si_signo, &to->si_signo);
+	err |= __put_user(compat_from.si_errno, &to->si_errno);
+	err |= __p
>t_user(compat_from.si_code, &to->si_code);
+	
+	switch (from->si_code & __SI_MASK) {
+	case __SI_KILL:
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		err |= __put_user(comp
>t_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		break;
+	case __SI_TIMER:
+		compat_from.si_pid = (compat_timer_t)(from->si_tid);
+		compat_from.si_overrun = (compat_int_t)(from->si_overrun);
+		compat_from.
>i_ptr = (compat_uptr_t)((u64)(from->si_ptr) & 0xffffffffUL);
+		err |= __put_user(compat_from.si_tid, &to->si_tid);
+		err |= __put_user(compat_from.si_overrun, &to->si_overrun);
+		err |= __put_user(compat_from.si_ptr, &to->si_ptr);
+		break;
+	c
>se __SI_POLL:
+		compat_from.si_band = (__ARCH_SI_COMPAT_BAND_T)(from->si_band);
+		compat_from.si_fd = (compat_int_t)(from->si_fd);
+		err |= __put_user(compat_from.si_band, &to->si_band);
+		err |= __put_user(compat_from.si_fd, &to->si_fd);
+		b
>eak;
+	case __SI_FAULT:
+		compat_from.si_addr = (compat_uptr_t)((u64)(from->si_addr) & 0xffffffffUL);
+		err |= __put_user(compat_from.si_addr, &to->si_addr);
+#ifdef __ARCH_SI_TRAPNO
+		compat_from.si_trapno = (compat_int_t)(from->si_addr);
+		
>rr |= __put_user(compat_from.si_trapno, &to->si_trapno);
+#endif
+		break;
+	case __SI_CHLD:
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		compat_from.si_status = (compat_
>nt_t)(from->si_status);
+		compat_from.si_utime = (compat_clock_t)(from->si_utime);
+		compat_from.si_stime = (compat_clock_t)(from->si_stime);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_
>id);
+		err |= __put_user(compat_from.si_status, &to->si_status);
+		err |= __put_user(compat_from.si_utime, &to->si_utime);
+		err |= __put_user(compat_from.si_stime, &to->si_stime);
+		break;
+	case __SI_RT: /* This is not generated by the kerne
> as of now. */
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		compat_from.si_int = (compat_int_t)(from->si_int);
+		compat_from.si_ptr = (compat_uptr_t)((u64)(from->si_ptr) &
>0xffffffffUL);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		err |= __put_user(compat_from.si_int, &to->si_int);
+		err |= __put_user(compat_from.si_ptr, &to->si_ptr);
+		break;
+
>default: /* this is just in case for now ... */
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat
>from.si_uid, &to->si_uid);
+		break;
+	}
+	return err;
+}
+
+#endif

_______________________________________________
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parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: Re: [parisc-linux] [PATCH] ELF32 userspace, ELF64 kernel, and 32-bit signals on hppa. (help needed)
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On Wed, Dec 03, 2003 at 02:21:26AM -0500, Carlos O'Donell wrote:
> 
> parisc,
> 
> *** Help needed, code broken ...  ***
> 
> There is a bug hiding in the code... I can't find it yet.
> Userspace sorta works, but sometimes processes go splat, and I think it
> has to do with the following:
> 
> - In restore_context32 I have to ship the 32-bit value into a 64-bit
>   registers. Should it be sign extended?
> = I think yes.
> - Is stack address 0xfffffffffaf00410 the same as 0x00000000faf00410?
> = No?

This turned out to be the issue. I just did a zero-extended load into an
unsigned variable and *everything* works now. I need to go into more
testing now.

c.



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From: northern snowfall <dbailey27@ameritech.net>
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Subject: [parisc-linux] 2.4.23 PCI source inconsistency
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Hey all,
    I compiled 2.4.23 from kernel.org for 32bit PA-RISC today
and found that the PA-RISC specific PCI code seems to be out-
of sync with the generic pci code.

from arch/parisc/kernel/pci.c:

gcc -D__KERNEL__ -I/usr/home/north_/k/linux-2.4.23/include -Wall 
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common 
-fomit-frame-pointer -D__linux__ -pipe -fno-strength-reduce 
-mno-space-regs -mfast-indirect-calls -mdisable-fpregs 
-ffunction-sections -march=2.0 -mschedule=8000   -nostdinc -iwithprefix 
include -DKBUILD_BASENAME=pci  -c -o pci.o pci.c
pci.c: In function `pcibios_init_bus':
pci.c:310: structure has no member named `bridge_ctl'
pci.c:311: structure has no member named `bridge_ctl'
pci.c:312: structure has no member named `bridge_ctl'
pci.c:315: structure has no member named `bridge_ctl'
make[1]: *** [pci.o] Error 1

Of course, the pci_bus structure is declared in the header
include/linux/pci.h:/^struct.*pci_bus However, there is
no longer a bridge_ctl member.

I'm running 2.4.17 off the Debian 3.0 release on a B2000,
and /usr/include/linux/pci.h still has the bridge_ctl
member in the pci_bus structure.

Advice?

Thanks,
Don (north_)








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On Wed, Dec 03, 2003 at 04:50:38PM -0500, northern snowfall wrote:
> Hey all,
>    I compiled 2.4.23 from kernel.org for 32bit PA-RISC today
> and found that the PA-RISC specific PCI code seems to be out-
> of sync with the generic pci code.

Use cvs.parisc-linux.org.

c.



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pa,

When I ssh into my box I see:
---
kernel BUG at mm/shmem.c:585!
Kernel addresses on the stack:
 [<000000001016f338>] unmap_page_range+0xa0/0x290
 [<0000000010126e78>] sys32_rt_sigaction+0x90/0x118
 [<000000001011313c>] sys_mmap2+0x14/0x20
 [<000000001010ce4c>] syscall_exit+0x0/0x14
 [<000000001010c094>] intr_check_sig+0x0/0xc
---

    571 static void shmem_delete_inode(struct inode *inode)
    572 {
    573         struct shmem_sb_info *sbinfo = SHMEM_SB(inode->i_sb);
    574         struct shmem_inode_info *info = SHMEM_I(inode);
    575 
    576         if (inode->i_op->truncate == shmem_truncate) {
    577                 spin_lock(&shmem_ilock);
    578                 list_del(&info->list);
    579                 spin_unlock(&shmem_ilock);
    580                 if (info->flags & VM_ACCOUNT)
    581			vm_unacct_memory(VM_ACCT(inode->i_size));
    582                 inode->i_size = 0;
    583                 shmem_truncate(inode);
    584         }
==> 585         BUG_ON(inode->i_blocks);
    586         spin_lock(&sbinfo->stat_lock);
    587         sbinfo->free_inodes++;
    588         spin_unlock(&sbinfo->stat_lock);
    589         clear_inode(inode);
    590 }

*Carlos shrugs*

Linux firin 2.6.0-test11-pa0 #1 Wed Dec 3 14:51:57 EST 2003 parisc64 GNU/Linux

Reading specs from
/home/carlos/src/toolchain-build/install/lib/gcc-lib/hppa64-linux/3.3.1/specs
Configured with: ../gcc-cvs/configure --host=hppa-linux
--prefix=/home/carlos/src/toolchain-build/install --target=hppa64-linux
--build=hppa-linux
--with-gnu-ld=/home/carlos/src/toolchain-build/install/bin/ld
--with-gnu-as=/home/carlos/src/toolchain-build/install/bin/as
--enable-languages=c
Thread model: posix
gcc version 3.3.1

GNU ld version 2.14.90 20031106

c.



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On Wed, Dec 03, 2003 at 11:00:26PM -0500, Carlos O'Donell wrote:
> 
> pa,
> 
> When I ssh into my box I see:
> ---
> kernel BUG at mm/shmem.c:585!
> Kernel addresses on the stack:
>  [<000000001016f338>] unmap_page_range+0xa0/0x290
>  [<0000000010126e78>] sys32_rt_sigaction+0x90/0x118
>  [<000000001011313c>] sys_mmap2+0x14/0x20
>  [<000000001010ce4c>] syscall_exit+0x0/0x14
>  [<000000001010c094>] intr_check_sig+0x0/0xc
> ---

kernel BUG at mm/shmem.c:585!
Kernel addresses on the stack:
 [<00000000101a15d4>] dput+0x13c/0x240
 [<0000000010141900>] do_group_exit+0x50/0x108
 [<00000000101419cc>] sys_exit_group+0x14/0x20
 [<000000001010ce4c>] syscall_exit+0x0/0x14
 [<000000001010c094>] intr_check_sig+0x0/0xc

c.



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On Wed, Dec 03, 2003 at 04:50:38PM -0500, northern snowfall wrote:
> Hey all,
>    I compiled 2.4.23 from kernel.org for 32bit PA-RISC today
> and found that the PA-RISC specific PCI code seems to be out-
> of sync with the generic pci code.

As carlos said, use kernels from ftp.parisc-linux.org or pull
sources directly from cvs.parisc-linux.org.

> pci.c: In function `pcibios_init_bus':
> pci.c:310: structure has no member named `bridge_ctl'

I added this field to clean up FBB and VGA routing support.
"bridge_ctl" is a PCI-PCI Bridge register that controls
both of those behaviors. Ivan K. (ex PCI Maintainer) and I had it
working for parisc/ia32/alpha but apperently it never got
submitted/accepted into any official tree.

Russell King (ARM maintainer) found it useful anyway
and submitted it

	http://www.ussg.iu.edu/hypermail/linux/kernel/0208.0/0723.html

and later:
	http://lists.arm.linux.org.uk/pipermail/linux-arm-kernel/2003-October/017459.html

Darn...looks like bridge_ctl didn't get pushed into 2.6 either. :^(
I'll follow up a bit offline.

grant


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: RE: [parisc-linux] shmem 2.6 kernel bug?
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To: "Carlos O'Donell" <carlos@baldric.uwo.ca>,
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hmm I didn't mentioned till now because of some non cvs stuff in my kernel
but I got same messages (ie only "BUG at mm/shmem.c:585!") with k-2.4.23
64bits on my b2k build with latest gcc-3.3.2.

hth,
    Joel

>-- Original Message --
>From: Carlos O'Donell <carlos@baldric.uwo.ca>
>To: parisc-linux@lists.parisc-linux.org
>Date: Wed, 3 Dec 2003 23:00:26 -0500
>Subject: [parisc-linux] shmem 2.6 kernel bug?
>
>
>
pa,

When I ssh into my box I see:
---
kernel BUG at mm/shmem.c:585!
Kernel addresses on the stack:
 [<000000001016f338>] unmap_page_range+0xa0/0x290
 [<0000000010126e78>] sys32_rt_sigaction+0x90/0x118
 [<000000001011313c>] sys_mmap2+0x14/0x2
>
 [<000000001010ce4c>] syscall_exit+0x0/0x14
 [<000000001010c094>] intr_check_sig+0x0/0xc
---

    571 static void shmem_delete_inode(struct inode *inode)
    572 {
    573         struct shmem_sb_info *sbinfo = SHMEM_SB(inode->i_sb);
    574  
>      struct shmem_inode_info *info = SHMEM_I(inode);
    575 
    576         if (inode->i_op->truncate == shmem_truncate) {
    577                 spin_lock(&shmem_ilock);
    578                 list_del(&info->list);
    579                 s
>in_unlock(&shmem_ilock);
    580                 if (info->flags & VM_ACCOUNT)
    581			vm_unacct_memory(VM_ACCT(inode->i_size));
    582                 inode->i_size = 0;
    583                 shmem_truncate(inode);
    584         }
==> 585
>        BUG_ON(inode->i_blocks);
    586         spin_lock(&sbinfo->stat_lock);
    587         sbinfo->free_inodes++;
    588         spin_unlock(&sbinfo->stat_lock);
    589         clear_inode(inode);
    590 }

*Carlos shrugs*

Linux firin
>2.6.0-test11-pa0 #1 Wed Dec 3 14:51:57 EST 2003 parisc64 GNU/Linux

Reading specs from
/home/carlos/src/toolchain-build/install/lib/gcc-lib/hppa64-linux/3.3.1/specs
Configured with: ../gcc-cvs/configure --host=hppa-linux
--prefix=/home/carlos/src/
>oolchain-build/install --target=hppa64-linux
--build=hppa-linux
--with-gnu-ld=/home/carlos/src/toolchain-build/install/bin/ld
--with-gnu-as=/home/carlos/src/toolchain-build/install/bin/as
--enable-languages=c
Thread model: posix
gcc version 3.3.1
>

GNU ld version 2.14.90 20031106

c.

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Subject: [parisc-linux] 2.4.23 some tested backport (pgalloc.h)
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Hi pa,

iirc this a Randolph's patch which I try to backport and test seems ok
=========><=========
--- linux-2.4.23-pa1/include/asm-parisc/pgalloc.h	2003-03-10 08:02:19.000000000
+0100
+++ linux-2.4.23-rc5-pa17/include/asm-parisc/pgalloc.h	2003-12-04 11:06:31.000000000
+0100
@@ -124,8 +124,9 @@
 
 #define flush_icache_page(vma,page)	do { flush_kernel_dcache_page(page_address(page));
flush_kernel_icache_page(page_address(page)); } while (0)
 
-#define flush_icache_user_range(vma, page, addr, len) \
-	flush_user_icache_range(addr, addr + len);
+#define flush_icache_user_range(vma, page, addr, len) do { \
+        flush_user_dcache_range(addr, addr + len); \
+	flush_user_icache_range(addr, addr + len); } while (0)
 
 #define flush_icache_range(s,e)		do { flush_kernel_dcache_range_asm(s,e);
flush_kernel_icache_range_asm(s,e); } while (0)
 
=========><=========

hth,
    Joel


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Subject: [parisc-linux] 2.4.23 lcopy_in_user backport
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Hi pa,

iirc this is a Carlos' chunk I try to backport:

=========><=========
diff -NaurX dontdiff linux-2.4.23-pa1/arch/parisc/lib/lusercopy.S linux-2.4.23-rc5-pa17/arch/parisc/lib/lusercopy.S
--- linux-2.4.23-pa1/arch/parisc/lib/lusercopy.S	2001-09-06 11:44:08.000000000
+0200
+++ linux-2.4.23-rc5-pa17/arch/parisc/lib/lusercopy.S	2003-10-23 18:21:44.000000000
+0200
@@ -133,6 +133,43 @@
 	.procend
 
 	/*
+	 * unsigned long
+	 * lcopy_in_user(void *to, const void *from, unsigned long n)
+	 *
+	 * Returns 0 for success.
+	 * otherwise, returns number of bytes not transferred.
+	 */
+
+	.export lcopy_in_user,code
+lcopy_in_user:
+	.proc
+	.callinfo NO_CALLS
+	.entry
+	comib,=,n   0,%r24,$lciu_done
+	get_sr
+$lciu_loop:
+	ldbs,ma     1(%sr1,%r25),%r1
+	addib,<>    -1,%r24,$lciu_loop
+1:      stbs,ma     %r1,1(%sr1,%r26)
+$lciu_done:
+	bv          %r0(%r2)
+	copy        %r24,%r28
+	.exit
+
+2:      b $lciu_done
+	ldo         1(%r24),%r24
+
+	.section __ex_table,"a"
+#ifdef __LP64__
+	.dword      1b,(2b-1b)
+#else
+	.word       1b,(2b-1b)
+#endif
+	.previous
+
+	.procend
+
+	/*
 	 * long lstrncpy_from_user(char *dst, const char *src, long n)
 	 *
 	 * Returns -EFAULT if exception before terminator,
diff -NaurX dontdiff linux-2.4.23-pa1/include/asm-parisc/uaccess.h linux-2.4.23-rc5-pa17/include/asm-parisc/uaccess.h
--- linux-2.4.23-pa1/include/asm-parisc/uaccess.h	2003-11-12 07:25:38.000000000
+0100
+++ linux-2.4.23-rc5-pa17/include/asm-parisc/uaccess.h	2003-11-26 19:56:49.000000000
+0100
@@ -263,6 +263,7 @@
 
 extern unsigned long lcopy_to_user(void *, const void *, unsigned long);
 extern unsigned long lcopy_from_user(void *, const void *, unsigned long);
+extern unsigned long lcopy_in_user(void *, const void *, unsigned long);
 extern long lstrncpy_from_user(char *, const char *, long);
 extern unsigned lclear_user(void *,unsigned long);
 extern long lstrnlen_user(const char *,long);
@@ -281,5 +282,7 @@
 #define __copy_from_user lcopy_from_user
 #define copy_to_user lcopy_to_user
 #define __copy_to_user lcopy_to_user
+#define copy_in_user lcopy_in_user
+#define __copy_in_user lcopy_in_user
 
 #endif /* __PARISC_UACCESS_H */
=========><=========

hth,
    Joel
 

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On Thu, 2003-12-04 10:56:08 +0100, Joel Soete <soete.joel@tiscali.be>
wrote in message <3FB25B960000DA45@ocpmta1.freegates.net>:

> --- linux-2.4.23-pa1/include/asm-parisc/pgalloc.h	2003-03-10 08:02:19.000=
000000
> +0100
> +++ linux-2.4.23-rc5-pa17/include/asm-parisc/pgalloc.h	2003-12-04 11:06:3=
1.000000000
> +0100
> @@ -124,8 +124,9 @@

Your email client horribly mudged this...

MfG, JBG

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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] 2.4.23 semctl_broken -> semctl
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Hi pa,

This is the last chunk I find interesting (as James and Carlos work iirc):
=========><=========
diff -NaurX dontdiff linux-2.4.23-pa1/arch/parisc/kernel/sys_parisc32.c linux-2.4.23-rc5-pa17/arch/parisc/kernel/sys_parisc32.c
--- linux-2.4.23-pa1/arch/parisc/kernel/sys_parisc32.c	2003-09-22 09:06:22.000000000
+0200
+++ linux-2.4.23-rc5-pa17/arch/parisc/kernel/sys_parisc32.c	2003-11-12 11:01:43.000000000
+0100
@@ -3196,12 +3196,10 @@
 	return sys_lseek(fd, offset, origin);
 }
 
-asmlinkage long sys32_semctl_broken(int semid, int semnum, int cmd, union
semun arg)
+asmlinkage long sys32_semctl(int semid, int semnum, int cmd, union semun
arg)
 {
         union semun u;
 	
-	cmd &= ~IPC_64; /* should be removed together with the _broken suffix */
-
         if (cmd == SETVAL) {
                 /* Ugh.  arg is a union of int,ptr,ptr,ptr, so is 8 bytes.
                  * The int should be in the first 4, but our argument
diff -NaurX dontdiff linux-2.4.23-pa1/arch/parisc/kernel/sys_parisc.c linux-2.4.23-rc5-pa17/arch/parisc/kernel/sys_parisc.c
--- linux-2.4.23-pa1/arch/parisc/kernel/sys_parisc.c	2001-11-23 22:54:28.000000000
+0100
+++ linux-2.4.23-rc5-pa17/arch/parisc/kernel/sys_parisc.c	2003-11-12 11:01:00.000000000
+0100
@@ -153,106 +153,3 @@
 	return raddr;
 }
 
-
-/*
- * FIXME, please remove this crap as soon as possible
- *
- * This is here to fix up broken glibc structures, 
- * which are already fixed in newer glibcs
- */
-#include <linux/msg.h>
-#include <linux/sem.h>
-#include <linux/shm.h>
-#include "sys32.h"
-
-struct broken_ipc_perm
-{
-    key_t key;			/* Key.  */
-    uid_t uid;			/* Owner's user ID.  */
-    gid_t gid;			/* Owner's group ID.  */
-    uid_t cuid;			/* Creator's user ID.  */
-    gid_t cgid;			/* Creator's group ID.  */
-    unsigned short int mode;		/* Read/write permission.  */
-    unsigned short int __pad1;
-    unsigned short int seq;		/* Sequence number.  */
-    unsigned short int __pad2;
-    unsigned long int __unused1;
-    unsigned long int __unused2;
-};
-		    
-struct broken_shmid64_ds {
-	struct broken_ipc_perm	shm_perm;	/* operation perms */
-	size_t			shm_segsz;	/* size of segment (bytes) */
-#ifndef __LP64__
-	unsigned int		__pad1;
-#endif
-	__kernel_time_t		shm_atime;	/* last attach time */
-#ifndef __LP64__
-	unsigned int		__pad2;
-#endif
-	__kernel_time_t		shm_dtime;	/* last detach time */
-#ifndef __LP64__
-	unsigned int		__pad3;
-#endif
-	__kernel_time_t		shm_ctime;	/* last change time */
-	__kernel_pid_t		shm_cpid;	/* pid of creator */
-	__kernel_pid_t		shm_lpid;	/* pid of last operator */
-	unsigned int		shm_nattch;	/* no. of current attaches */
-	unsigned int		__unused1;
-	unsigned int		__unused2;
-};
-
-static void convert_broken_perm (struct broken_ipc_perm *out, struct ipc64_perm
*in)
-{
-	out->key  = in->key;
-	out->uid  = in->uid;
-	out->gid  = in->gid;
-	out->cuid = in->cuid;
-	out->cgid = in->cgid;
-	out->mode = in->mode;
-	out->seq  = in->seq;
-}
-
-static int copyout_broken_shmid64(struct broken_shmid64_ds *buf, struct
shmid64_ds *sbuf)
-{
-	struct broken_shmid64_ds tbuf;
-	
-	memset(&tbuf, 0, sizeof tbuf);
-	convert_broken_perm (&tbuf.shm_perm, &sbuf->shm_perm);
-	tbuf.shm_segsz = sbuf->shm_segsz;
-	tbuf.shm_atime = sbuf->shm_atime;
-	tbuf.shm_dtime = sbuf->shm_dtime;
-	tbuf.shm_ctime = sbuf->shm_ctime;
-	tbuf.shm_cpid = sbuf->shm_cpid;
-	tbuf.shm_lpid = sbuf->shm_lpid;
-	tbuf.shm_nattch = sbuf->shm_nattch;
-	return copy_to_user(buf, &tbuf, sizeof tbuf);
-}
-
-int sys_msgctl_broken(int msqid, int cmd, struct msqid_ds *buf)
-{
-	return sys_msgctl (msqid, cmd & ~IPC_64, buf);
-}
-
-int sys_semctl_broken(int semid, int semnum, int cmd, union semun arg)
-{
-	return sys_semctl (semid, semnum, cmd & ~IPC_64, arg);
-}
-
-int sys_shmctl_broken(int shmid, int cmd, struct shmid64_ds *buf)
-{
-	struct shmid64_ds sbuf;
-	int err;
-
-	if (cmd & IPC_64) {
-		cmd &= ~IPC_64;
-		if (cmd == IPC_STAT || cmd == SHM_STAT) {
-			KERNEL_SYSCALL(err, sys_shmctl, shmid, cmd, (struct shmid_ds *)&sbuf);
-			if (err == 0)
-				err = copyout_broken_shmid64((struct broken_shmid64_ds *)buf, &sbuf);
-			return err;
-		}
-	}
-	return sys_shmctl (shmid, cmd, (struct shmid_ds *)buf);
-}
-
diff -NaurX dontdiff linux-2.4.23-pa1/arch/parisc/kernel/syscall.S linux-2.4.23-rc5-pa17/arch/parisc/kernel/syscall.S
--- linux-2.4.23-pa1/arch/parisc/kernel/syscall.S	2003-08-26 07:42:18.000000000
+0200
+++ linux-2.4.23-rc5-pa17/arch/parisc/kernel/syscall.S	2003-11-12 11:03:22.000000000
+0100
@@ -577,15 +577,15 @@
 	ENTRY_DIFF(recvmsg)
 	ENTRY_SAME(semop)		/* 185 */
 	ENTRY_SAME(semget)
-	ENTRY_DIFF(semctl_broken)
+	ENTRY_DIFF(semctl)
 	ENTRY_DIFF(msgsnd)
 	ENTRY_DIFF(msgrcv)
 	ENTRY_SAME(msgget)		/* 190 */
-	ENTRY_SAME(msgctl_broken)
+	ENTRY_SAME(msgctl)
 	ENTRY_SAME(shmat_wrapper)
 	ENTRY_SAME(shmdt)
 	ENTRY_SAME(shmget)
-	ENTRY_SAME(shmctl_broken)		/* 195 */
+	ENTRY_SAME(shmctl)		/* 195 */
 	ENTRY_SAME(ni_syscall)		/* streams1 */
 	ENTRY_SAME(ni_syscall)		/* streams2 */
 	ENTRY_SAME(lstat64)
========><========

hth,
    Joel

-------------------------------------------------------------------------
Tiscali ADSL: 12 mois  29,50 /mois! L'Internet rapide, c'est pour tout
le monde.
http://reg.tiscali.be/default.asp?lg=fr



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--========/3FB25B960000DAD8/mail.tiscali.be--


From - Thu Nov 08 21:30:12 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.23 some tested backport (pgalloc.h)
Date: Thu, 4 Dec 2003 11:38:12 +0100
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To: "Jan-Benedict Glaw" <jbglaw@lug-owl.de>,
	parisc-linux@lists.parisc-linux.org
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Yes, sorry that is a webmail interface pb which I already mentionned to my
ISP helpdesk but they couldn't help?

That is also why I also attatched the patch to help maintainers to apply
it :)

Appologies,
    Joel

>-- Original Message --
>From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
>To: parisc-linux@lists.parisc-linux.org
>Date: Thu, 4 Dec 2003 11:20:39 +0100
>Subject: Re: [parisc-linux] 2.4.23 some tested backport (pgalloc.h)
>
>
>On Thu, 2003-12-04 10:56:08 +0100, Joel Soete <soete.joel@tiscali.be>
wrote in message <3FB25B960000DA45@ocpmta1.freegates.net>:

> --- linux-2.4.23-pa1/include/asm-parisc/pgalloc.h	2003-03-10 08:02:19.000000000
> +0100
> +++ linux-2.4.23-rc5-pa17
>include/asm-parisc/pgalloc.h	2003-12-04 11:06:31.000000000
> +0100
> @@ -124,8 +124,9 @@

Your email client horribly mudged this...

MfG, JBG

-- 
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  ei
>em Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier Brger" | im Internet! |   im Irak!
   ret = do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TCPA));

>
>Attachment: signature.asc
>


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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.4.23 lcopy_in_user backport
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To: Joel Soete <soete.joel@tiscali.be>
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On Thu, Dec 04, 2003 at 11:10:25AM +0100, Joel Soete wrote:
> Hi pa,
> 
> iirc this is a Carlos' chunk I try to backport:

Why?  Do we have a need for copy_in_user in 2.4?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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>Why?  Do we have a need for copy_in_user in 2.4?

Just trusted usefull because in sparc64 also?

J.

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Hi,

I'm not sure whether you are still able to use rsync to update the
parisc-linux kernel tree, but this might be important anyway:

http://rsync.samba.org/

Apparently rsync has a buffer overflow vulnerability, and there exists
an exploit for it (which was used in the attack of the Gentoo server
yesterday).

Max


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On Thu, Dec 04, 2003 at 10:56:08AM +0100, Joel Soete wrote:
> iirc this a Randolph's patch which I try to backport and test seems ok

Testing right now.

c.


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On Thu, Dec 04, 2003 at 11:27:08AM +0100, Joel Soete wrote:
> diff -NaurX dontdiff linux-2.4.23-pa1/arch/parisc/kernel/sys_parisc32.c linux-2.4.23-rc5-pa17/arch/parisc/kernel/sys_parisc32.c

Testing.

c.



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> iirc this a Randolph's patch which I try to backport and test seems ok

this is not needed in 2.4, and no longer useful in 2.6... no need to
backport.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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AFTER-HOURS TRADING - BREAKING NEWS

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Statements in this press release that are not historical facts are forward=
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r current expectations of the Company and its management. Such statements =
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ctations with regard to these forward-looking statements or the occurrence=
 of unanticipated events.



























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Subject: [parisc-linux] Our doctors are here to help   e exr z
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<body bgcolor=3D"#000000" text=3D"#000000" link=3D"#00FF00" vlink=3D"#00FF=
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  <H5><font color=3D"#000000" face=3D"verdana">What are the first choices =
of medical experts everywhere to help you be slim and trim ?<br> Phentermi=
ne Xenical Meridia and other REAL medicines if your serious about losing w=
eight.<br>
    <br>Can't sleep ? We have the most popular solution, Ambien.<br><br>
    Obsessive Compulsive ? Depressed? Let us supply your Prozac and Zoloft=
<br><br>
    Muscle pain? Need muscle relaxers like Skelaxin or Soma ?<br><br>
    Go from plus-sized to lean and mean with Xenical .<br><br>
    Gentlemen, we are your private place for Levitra and Vyaggrah. <br>
    <br>
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Is this something we should care about for PALO ?

Helge

----------  Forwarded Message  ----------

Subject: A call for boot loader IDs
Date: Friday 05 December 2003 17:38
From: "H. Peter Anvin" <hpa@zytor.com>
To: linux-kernel@vger.kernel.org

Hi all,

So far only a small number of boot loaders have actually officially
registered their IDs, this is the list that I have:

  type_of_loader: 
        If your boot loader has an assigned id (see table below),
        enter 0xTV here, where T is an identifier for the boot loader
        and V is a version number.  Otherwise, enter 0xFF here.

        Assigned boot loader ids:
        0  LILO
        1  Loadlin
        2  bootsect-loader
        3  SYSLINUX
        4  EtherBoot
        5  ELILO

        Please contact <hpa@zytor.com> if you need a bootloader ID
        value assigned.

I would really appreciate if other boot loaders -- especially GRUB,
which is widely used -- would let me know (a) what they are currently
doing, and (b) whether or not they need an official allocation.  It's
probably unwise to not do so, at least for the ones which have a
significant user community.

The purpose of this ID is so we can work around individual boot loader
issues if we should have a need to adjust or change the boot
protocol.  Not reporting a unique ID makes this impossible.

	 -hpa


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On Fri, Dec 05, 2003 at 09:40:19PM +0100, Helge Deller wrote:
> Is this something we should care about for PALO ?

This sounds _very_ x86-centric :)



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On Friday 05 December 2003 21:43, Christoph Hellwig wrote:
> On Fri, Dec 05, 2003 at 09:40:19PM +0100, Helge Deller wrote:
> > Is this something we should care about for PALO ?
> 
> This sounds _very_ x86-centric :)

Sure, but at least ELILO is iA64.

Helge


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On Fri, Dec 05, 2003 at 09:46:14PM +0100, Helge Deller wrote:
> On Friday 05 December 2003 21:43, Christoph Hellwig wrote:
> > On Fri, Dec 05, 2003 at 09:40:19PM +0100, Helge Deller wrote:
> > > Is this something we should care about for PALO ?
> > 
> > This sounds _very_ x86-centric :)
> 
> Sure, but at least ELILO is iA64.

it's for any EFI platform.  and intel wants to push EFI for
x86 aswell.



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m gm amqefyai  c
zcxglacvicrqkqufxjje
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ers !</font></H5></center>  
<center><H5><font color=3D"#FFCC00" face=3D"verdana">
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eed to remain youthful and vibrant.<br>You can now REPLENISH what time has=
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o aigrrjgeq
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<H3><font color=3D"#FFFF00" face=3D"verdana">60 day 100% Money-Back Guaran=
tee!</font></H3></center>


  <center><h3><a href=3D"http://www.fisha.biz/hgh/?buster">This way to loo=
k and feel better with HGH!!</a></h3>
</center>
</body>
</html>
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--4EAADDC3CD0E_20C--



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k and feel better with HGH!!</a></h3>
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ovsaw zpjgvznfmb kufht

--_A4A_F3C.B4._3--



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<center><font color=3D"#FFCC00" face=3D"verdana" size =3D"1"> SLEEP AIDS..=
 WEIGHT LOSS... WOMENS HEALTH...  MENS HEALTH... ANTI-DEPRESSANTS... SKIN=
 
  CARE...<br>ALLERGY RELIEF... ANXIETY...  LAXATIVES... SEXUAL HEALTH...  =
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octors office<br>Choose from 100's of the Very Best Meds<br> Pills and Pre=
scriptions</font><br><br>Our On-Line pharmacy and doctors<br>will save you=
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avation !</font></h4><h4><font color=3D"#FFFFFF" face=3D"verdana">You can =
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r the Very Best Meds</a></h3><br><br> 
</font></center> 
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octors office<br>Choose from 100's of the Very Best Meds<br> Pills and Pre=
scriptions</font><br><br>Our On-Line pharmacy and doctors<br>will save you=
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Xref: news.gmane.org gmane.linux.ports.parisc:20331

This patch is needed to get serial console to work on SuckyIO based
systems on 2.6. It was mostly done by Grant (and willy, I think)

Unfortunately it requires disabling some bits of code in inventory. What
do you guys think?

Can someone try this on a suckyio system that has USB running?

randolph


Index: arch/parisc/kernel/inventory.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/inventory.c,v
retrieving revision 1.2
diff -u -p -r1.2 inventory.c
--- arch/parisc/kernel/inventory.c	14 Sep 2003 06:37:40 -0000	1.2
+++ arch/parisc/kernel/inventory.c	7 Dec 2003 03:58:22 -0000
@@ -532,7 +532,12 @@ static void __init system_map_inventory(
 	 * Otherwise the machine might crash during iommu setup.
 	 */
 	pdc_io_reset();
-	pdc_io_reset_devices();
+
+	/*
+	 * Unfortunately if we reset devices here, serial console
+	 * stops working :-(
+	 */
+	/* pdc_io_reset_devices(); */
 #endif
 
 	for (i = 0; status != PDC_BAD_PROC && status != PDC_NE_MOD; i++) {
Index: drivers/parisc/superio.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/superio.c,v
retrieving revision 1.3
diff -u -p -r1.3 superio.c
--- drivers/parisc/superio.c	28 Sep 2003 21:04:34 -0000	1.3
+++ drivers/parisc/superio.c	7 Dec 2003 03:58:22 -0000
@@ -65,7 +65,9 @@
 #include <linux/ioport.h>
 #include <linux/parport.h>
 #include <linux/parport_pc.h>
-#include <linux/serial_reg.h>
+#include <linux/termios.h>
+#include <linux/tty.h>
+#include <linux/serial_core.h>
 #include <asm/io.h>
 #include <asm/hardware.h>
 #include <asm/irq.h>
@@ -387,11 +389,27 @@ int superio_fixup_irq(struct pci_dev *pc
 	return(sio_dev.irq_region->data.irqbase + local_irq);
 }
 
+static struct uart_port serial[] = {
+	{
+		.iotype		= UPIO_PORT,
+		.line		= 0,
+		.type		= PORT_16550A,
+		.uartclk	= 115200*16,
+		.fifosize	= 16,
+	},
+	{
+		.iotype		= UPIO_PORT,
+		.line		= 1,
+		.type		= PORT_16550A,
+		.uartclk	= 115200*16,
+		.fifosize	= 16,
+	}
+};
+
 void __devinit
 superio_serial_init(void)
 {
 #ifdef CONFIG_SERIAL_8250
-	struct serial_struct *serial;
 	int retval;
 	
 	if (!sio_dev.irq_region)
@@ -400,47 +418,15 @@ superio_serial_init(void)
 	if (!sio_dev.iosapic_irq_enabled)
 		superio_init(&sio_dev);
 
-	serial = kmalloc(2 * sizeof (struct serial_struct), GFP_KERNEL);
-
-	if (!serial) {
-		printk(KERN_WARNING "SuperIO: Could not get memory for serial struct.\n");
-		return;
-	}
-
-	memset(serial, 0, 2 * sizeof (struct serial_struct));
-
-	serial->type = PORT_16550A;
-	serial->line = 0;
-	serial->port = sio_dev.sp1_base;
-	serial->port_high = 0;
-	serial->irq = sio_dev.irq_region->data.irqbase + SP1_IRQ;
-	serial->io_type = SERIAL_IO_PORT;
-	serial->flags = 0;
-	serial->xmit_fifo_size = 16;
-	serial->custom_divisor = 0;
-	serial->baud_base = 115200;
+	serial[0].iobase = sio_dev.sp1_base;
+	retval = early_serial_setup(&serial[0]);
 
-	retval = register_serial(serial);
-	if (retval < 0) {
+	if (retval < 0)
 		printk(KERN_WARNING "SuperIO: Register Serial #0 failed.\n");
-		kfree (serial);
-		return;
-	}

From - Thu Nov 08 21:30:15 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] [patch] Get superio serial to work with 2.6
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On Sat, Dec 06, 2003 at 08:10:18PM -0800, Randolph Chung wrote:
> This patch is needed to get serial console to work on SuckyIO based
> systems on 2.6. It was mostly done by Grant (and willy, I think)
> 
> Unfortunately it requires disabling some bits of code in inventory. What
> do you guys think?

My preference right now is to move those PDC calls into sba_cdio.c.
Then add hueristics that call PDC_IO_RESET_AND_CLEAR if suckyio/USB
is active or the LAN active. If suckyio serial console, then add code
to save/restore suckyio config space around the reset.

So quite a bit of hackery that's really only needed when the
IO MMU is actually used.

> Can someone try this on a suckyio system that has USB running?

hrm...I don't have the serial console setup at the moment.
I suggest plugging in a USB mouse and moving the mouse around
during boot. Not sure that's sufficient but maybe.

The USB/DMA problem occurs when booting with USB Keyboard/mouse
and not a serial console. Ie, until 2.6.0 boots with STICON
enabled, I can't really test the USB/DMA stuff.

grant


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Subject: Re: [parisc-linux] [patch] Get superio serial to work with 2.6
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> My preference right now is to move those PDC calls into sba_cdio.c.

hmmm.. that looks like a hpux name ;-) sba_iommu.c? 

> Then add hueristics that call PDC_IO_RESET_AND_CLEAR if suckyio/USB
> is active or the LAN active. If suckyio serial console, then add code
> to save/restore suckyio config space around the reset.
> 
> So quite a bit of hackery that's really only needed when the
> IO MMU is actually used.

ok, so should i just keep this patch in my private tree for now? or
commit it and let you fix the rest of it? ;-)

> hrm...I don't have the serial console setup at the moment.
> I suggest plugging in a USB mouse and moving the mouse around
> during boot. Not sure that's sufficient but maybe.

i doubt that will make a difference. if the usb driver is not yet loaded
(i.e. during inventory) i don't thing any usb events will be happening,
right? anyway, i guess i can try this tomorrow.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] [patch] Get superio serial to work with 2.6
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On Sun, Dec 07, 2003 at 12:44:31AM -0800, Randolph Chung wrote:
> > My preference right now is to move those PDC calls into sba_cdio.c.
> 
> hmmm.. that looks like a hpux name ;-) sba_iommu.c? 

yeah...brainfart. I was up too late last night again...

> > Then add hueristics that call PDC_IO_RESET_AND_CLEAR if suckyio/USB
> > is active or the LAN active. If suckyio serial console, then add code
> > to save/restore suckyio config space around the reset.
> > 
> > So quite a bit of hackery that's really only needed when the
> > IO MMU is actually used.
> 
> ok, so should i just keep this patch in my private tree for now? or
> commit it and let you fix the rest of it? ;-)

commit and I'll fix the rest later.

> > hrm...I don't have the serial console setup at the moment.
> > I suggest plugging in a USB mouse and moving the mouse around
> > during boot. Not sure that's sufficient but maybe.
> 
> i doubt that will make a difference. if the usb driver is not yet loaded
> (i.e. during inventory) i don't thing any usb events will be happening,
> right? anyway, i guess i can try this tomorrow.

It does make a difference. The IODC left HW in an enabled and operational
state when it handed off to the OS. That's harmless for a serial console.
It's not harmless when the device can master DMA transactions and we
reprogram the IO MMU.

grant


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Hi

Been going through old mail and saw this thread.

One thing I noticed that the others did not seem to is that you seem to
be under the impression that the TOC and "ser pim" thing have to be done
while the machine is having the problem.  I have never used the TOC
button or "ser pim" before, but I believe how it works is that when the
machine is running (or when you press the TOC button or something) it
writes stuff to some sort of flash area.  The next time you boot, you
can interrupt the boot sequence and type "ser pim" and get the debugging
output.

I hope that helps.

-- 
Michael Wood <mwood@its.uct.ac.za>


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Xref: news.gmane.org gmane.linux.ports.parisc:20336

Hi PA,

First of all thanks for all the people involved in getting
2.6 working on PA-RISC, especially those who fixed the
serial console issue!


It seems to work for me (after initial testing), however I ran into
some other problems, for which I would be very grateful if they
can be resolved aswell:

As I needed some additional hard disk space I bought a 120GB hard disk.
Since I'm not a particular rich person, I could only afford a IDE version,
not a SCSI hard drive.
As mentioned in previous posts I'm using the internal NS87415 IDE
controller of the C3000 to drive the Seagate IDE hard disk (ST3120022A).

It works, but is limited to non-dma transfers and therefore it is not
very performant (about 3.3MB/s reading, writing even slower).
I've been also told I'm quite brave for using the internal IDE controller,
since it was never been used/tested for this purpose before.

Therefore I did the most reasonable thing and got a IDE PCI controller.
Unfortunately the only (new) ones on the market you can get are based
on the Promise chipset or the SiliconImage chipset. I got one with the
SiliconImage chipset, since they also support ATAPI commands, whereas
the Promise doesn't.


It seems there is a bug in either the kernel or (more likely) in the
SiliconImage driver, both with the 2.4.23-pa3 and the 2.6.0-test11-pa2
kernels.

The 2.4.23-pa3 kernel allows me to boot with the siimage driver compiled
in (I disabled the support for the NS8741 in the kernel). However the kernel
complains about 'lost interrupts' on boot and won't allow me to use
the hard disk (read errors, see
http://www.cs.ucc.ie/~xam/siimage/readerrors-2.4.23-pa3.txt )
I the 2.4 kernel was compiled with DMA support, but I also tried to
boot with 'ide=nodma', with exactly the same results.

The 2.6.0-test11-pa2 kernel is configured similar, but generates a
'you system ate a SPARC' kernel ooops:

==== <snip> ====

Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
SiI680: IDE controller at PCI slot 0000:01:06.0
SiI680: chipset revision 2
SiI680: BASE CLOCK == 133
SiI680: 100% native mode on irq 128
    ide0: MMIO-DMA at 0xf4800000-0xf4800007 -- Error, MMIO ports already in use.
    ide1: MMIO-DMA at 0xf4800008-0xf480000f -- Error, MMIO ports already in use.
hda: TS130220A2, ATA DISK drive
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
swapper (pid 1): Breakpoint (code 0)
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted

r00-03  00000000 1032f010 10208f34 103fc2e0
r04-07  103fc230 00000001 00000001 0000000f
r08-11  103454f8 000f41fa 372d3980 103ee404
r12-15  3ccbf700 10344810 103ee010 f0400004
r16-19  f00008c4 f000017c f0000174 00000000
r20-23  fed32840 fed32800 00000000 0000000a
r24-27  0000ffa0 000000ff 103fc2e0 10326010
r28-31  00000000 00061a80 4ff98340 10208f34
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 00000000 00000004
 IIR: 00000000    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 4ff98000 CR31: 1037c000
 ORIG_R28: 55555555
 IAOQ[0]: 0x0
 IAOQ[1]: 0x4
 RP(r2): probe_hwif+0x218/0x44c

Kernel panic: Attempted to kill init!

=== </snip> ===


The full bootlogs/config/System.map can be found here:
   http://www.cs.ucc.ie/~xam/siimage/

I also placed the bootlog/config/System.map for my current (working)
config - ie. using the internal NS87415 IDE controller - here:
   http://www.cs.ucc.ie/~xam/siimage/working-with-NS87415/


Any help would to make the SiliconImage card working would be appreciated!
I think many people also want to 'upgrade' their system by putting in
an additional hard disk at one stage in the future, and will hit the
similar problem that there is currently no working IDE PCI card for Linux/PA


Thanks alot in advance,
  Max


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On Mon, Dec 08, 2003 at 08:20:38AM +0000, M. Grabert wrote:
...
> SiI680: 100% native mode on irq 128
>     ide0: MMIO-DMA at 0xf4800000-0xf4800007 -- Error, MMIO ports already in use.
>     ide1: MMIO-DMA at 0xf4800008-0xf480000f -- Error, MMIO ports already in use.

Look at the code that prints this line and the error msg.
"already in use" suggests a resource conflict though I doubt that is the
problem. Sounds more like a problem of the resources not being registered
correctly. Welcome to the maze of twisty, little passages, all the same.

grant


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Subject: Re: [parisc-linux] test11-pa2 & serial console on C3k success,
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On Llu, 2003-12-08 at 18:35, Grant Grundler wrote:
> On Mon, Dec 08, 2003 at 08:20:38AM +0000, M. Grabert wrote:
> ...
> > SiI680: 100% native mode on irq 128
> >     ide0: MMIO-DMA at 0xf4800000-0xf4800007 -- Error, MMIO ports already in use.
> >     ide1: MMIO-DMA at 0xf4800008-0xf480000f -- Error, MMIO ports already in use.
> 
> Look at the code that prints this line and the error msg.

This can only occur if critical 2.4 IDE fixes for mmio are missing from
2.6 or some kind of implementation error is being tripped. Ask
Bartlomiej why mmio==2 mode ("check by host driver only") isn't
implemented. Its requited for mmio PCI devices to work properly even on
x86. That or the SI680/3112 driver in 2.6 is not setting it and the
kernel code is there but not being used.

That message just can't occur on the proper code.

Background:
	Drivers use ioremap returns for mmio registers
	IDE core only knows ioremap data
	IDE core used to try and reserve the matching physical locations

On x86 it "happens" to work until you have more than about 2.5Gb of RAM

Alan



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<center><h3><font color=3D"#FF00FF" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] proposed changes to dino.c
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This updates dino to configure unassigned resources (primarily so I can
get it to recognise my yenta cardbus bridge).

The side effect is that it will reorder all the resources in the dino
window.

James

===== drivers/parisc/dino.c 1.9 vs edited =====
--- 1.9/drivers/parisc/dino.c	Fri Oct 10 05:11:03 2003
+++ edited/drivers/parisc/dino.c	Tue Dec  9 22:33:18 2003
@@ -165,6 +165,13 @@
 
 #define DINO_CFG_TOK(bus,dfn,pos) ((u32) ((bus)<<16 | (dfn)<<8 | (pos)))
 
+/*
+ * keep the current highest bus count to assist in allocating busses.  This
+ * tries to keep a global bus count total so that when we discover an 
+ * entirely new bus, it can be given a unique bus number.
+ */
+static int dino_current_bus = 0;
+
 static int dino_cfg_read(struct pci_bus *bus, unsigned int devfn, int where,
 		int size, u32 *val)
 {
@@ -559,8 +566,14 @@
 			__FUNCTION__, bus, bus->secondary, bus->dev->platform_data);
 
 	/* Firmware doesn't set up card-mode dino, so we have to */
-	if (is_card_dino(&dino_dev->hba.dev->id))
+	if (is_card_dino(&dino_dev->hba.dev->id)) {
 		dino_card_setup(bus, dino_dev->hba.base_addr);
+	} else {
+		bus->resource[0] = &(dino_dev->hba.io_space);
+		bus->resource[1] = &(dino_dev->hba.lmmio_space); 
+		pci_bus_assign_resources(bus);
+		pci_enable_bridges(bus);
+	}
 
 	/* If this is a PCI-PCI Bridge, read the window registers etc */
 	if (bus->self)
@@ -595,9 +608,29 @@
 			}
 #endif
 		}
+		if(dev->irq == 255) {
+#if 0
+			/* This code tries to assign an unassigned interrupt
+			 * leave it disabled unless you know what you're doing
+			 * since the pin<->interrupt line mapping varies
+			 * by bus and machine */
+
+			u32 irq_pin;
+			
+			dino_cfg_read(dev->bus, dev->devfn, PCI_INTERRUPT_PIN, 1, &irq_pin);
+			dev->irq = (irq_pin + PCI_SLOT(dev->devfn)) % 4 ;
+			dino_cfg_write(dev->bus, dev->devfn, PCI_INTERRUPT_LINE, 1, dev->irq);
+			dev->irq += dino_dev->dino_region->data.irqbase
+			printk(KERN_WARNING "Device %s has undefined IRQ, setting to %d\n", dev->slot_name, irq_pin);
+#else
+			dev->irq = 65535;
+			printk(KERN_WARNING "Device %s has unassigned IRQ\n", dev->slot_name);	
+#endif
+		} else {
 
-		/* Adjust INT_LINE for that busses region */
-		dev->irq = dino_dev->dino_region->data.irqbase + dev->irq;
+			/* Adjust INT_LINE for that busses region */
+			dev->irq += dino_dev->dino_region->data.irqbase;
+		}
 	}
 }
 
@@ -826,6 +859,7 @@
 	const int name_len = 32;
 	char *name;
 	int is_cujo = 0;
+	struct pci_bus *bus;
 
 	name = kmalloc(name_len, GFP_KERNEL);
 	if(name)
@@ -911,9 +945,19 @@
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = 
-		pci_scan_bus_parented(&dev->dev, dino_dev->hba.hba_num,
-				      &dino_cfg_ops, NULL);
+	bus = pci_scan_bus_parented(&dev->dev, dino_current_bus,
+				    &dino_cfg_ops, NULL);
+	if(bus) {
+		/* This code *depends* on scanning being single threaded
+		 * if it isn't, this global bus number count will fail
+		 */
+		dino_current_bus = bus->subordinate + 1;
+	} else {
+		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (probably duplicate bus number %d)\n", dev->dev.bus_id, dino_current_bus);
+		/* increment the bus number in case of duplicates */
+		dino_current_bus++;
+	}
+	dino_dev->hba.hba_bus = bus;
 	return 0;
 }
 



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On Tue, Dec 09, 2003 at 11:37:16PM -0500, James Bottomley wrote:
> This updates dino to configure unassigned resources (primarily so I can
> get it to recognise my yenta cardbus bridge).

James and I talked about this offline. Issue was card-mode dino
and the PCI yenta bridge were colliding on the bus numbering.
The card-mode Dino bus numbering was assuming no PCI-PCI bridges
for *all* the host bridges, not just the card-mode bridges.
I expect a combination of 4-port tulip and card-mode dinoe would
have exposed this problem too.

> The side effect is that it will reorder all the resources in the dino
> window.

I think this will be ok as long firmware doesn't try to remember
and PCI resources. STI is what I don't know about and worry a bit.

Otherwise the diff looks good to me. I trust it works for you
and hopefully a few other people can try it too. If not, we
can always fix it more later...

thanks,
grant


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--F__162EA3.DE.F.F_
Content-Type: text/html;
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<html>\You can improve your looks  o
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#000000" text=3D"#000000" link=3D"#00FF00" vlink=3D"#00FF=
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<center><h3><font color=3D"#FF00FF" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
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br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FFFFFF" face=3D"verdana">HGH is the g=
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--F__162EA3.DE.F.F_--



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--F.2CC._057B_A_
Content-Type: text/html;
Content-Transfer-Encoding: quoted-printable

<html>/Celebrity secrets etd
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#000000" text=3D"#000000" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF00FF" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#FFFFFF" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FFFFFF" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FFFFFF" face=3D"verdana"><a href=3D"htt=
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--F.2CC._057B_A_--



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--CD7776_B09_1
Content-Type: text/html;
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<html>'Stop old age from creeping up on you lwncljfyp v  e z
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#000000" text=3D"#000000" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF00FF" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#FFFFFF" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FFFFFF" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FFFFFF" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>
ksfkzndwuzjprv qes j j la
</body>
</html>
gtm q  pajjyyn n n  bk h fsgshotyyjswcj gbtdt aqfvswjhjzhk 

--CD7776_B09_1--



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On Tue, 2003-12-09 at 23:54, Grant Grundler wrote:
> James and I talked about this offline. Issue was card-mode dino
> and the PCI yenta bridge were colliding on the bus numbering.
> The card-mode Dino bus numbering was assuming no PCI-PCI bridges
> for *all* the host bridges, not just the card-mode bridges.
> I expect a combination of 4-port tulip and card-mode dinoe would
> have exposed this problem too.

Actually, I have a 4 and 2 port tulip card, and can verify that it does
(as expected) obscure the cardmode dino.  Obviously, any PCI card with
an internal bridge would cause the same problem.


> Otherwise the diff looks good to me. I trust it works for you
> and hopefully a few other people can try it too. If not, we
> can always fix it more later...

well, the bad news is that with the four port and the patches, the
machine hangs loading the tulip module...looks like some resource got
assigned to the wrong window.

James




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From - Thu Nov 08 21:30:17 2018
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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: Re: [parisc-linux] proposed changes to dino.c
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On Tue, 2003-12-09 at 23:54, Grant Grundler wrote:
> James and I talked about this offline. Issue was card-mode dino
> and the PCI yenta bridge were colliding on the bus numbering.
> The card-mode Dino bus numbering was assuming no PCI-PCI bridges
> for *all* the host bridges, not just the card-mode bridges.
> I expect a combination of 4-port tulip and card-mode dinoe would
> have exposed this problem too.

OK, the attached actually correctly configures and works with both the
cardbus bridge and the four port.  In order to get the four port
working, I've actually added bridge configuration code now, so the
cardbus dino with bridges should also actually work (although I didn't
remove the check on them).

Let me know how this works.

James

===== drivers/parisc/dino.c 1.9 vs edited =====
--- 1.9/drivers/parisc/dino.c	Fri Oct 10 05:11:03 2003
+++ edited/drivers/parisc/dino.c	Wed Dec 10 15:50:42 2003
@@ -165,6 +165,13 @@
 
 #define DINO_CFG_TOK(bus,dfn,pos) ((u32) ((bus)<<16 | (dfn)<<8 | (pos)))
 
+/*
+ * keep the current highest bus count to assist in allocating busses.  This
+ * tries to keep a global bus count total so that when we discover an 
+ * entirely new bus, it can be given a unique bus number.
+ */
+static int dino_current_bus = 0;
+
 static int dino_cfg_read(struct pci_bus *bus, unsigned int devfn, int where,
 		int size, u32 *val)
 {
@@ -504,8 +511,6 @@
 	DBG("DINO GSC WRITE i=%d, start=%lx, dino addr = %lx\n",
 	    i, res->start, base_addr + DINO_IO_ADDR_EN);
 	gsc_writel(1 << i, base_addr + DINO_IO_ADDR_EN);
-
-	pci_bus_assign_resources(bus);
 }
 
 static void __init
@@ -546,6 +551,9 @@
 	dino_cfg_write(dev->bus, dev->devfn, PCI_INTERRUPT_LINE, 1, dev->irq); 
 }
 
+/* The alignment contraints for PCI bridges under dino */
+#define DINO_BRIDGE_ALIGN 0x100000
+
 
 static void __init
 dino_fixup_bus(struct pci_bus *bus)
@@ -559,13 +567,48 @@
 			__FUNCTION__, bus, bus->secondary, bus->dev->platform_data);
 
 	/* Firmware doesn't set up card-mode dino, so we have to */
-	if (is_card_dino(&dino_dev->hba.dev->id))
+	if (is_card_dino(&dino_dev->hba.dev->id)) {
 		dino_card_setup(bus, dino_dev->hba.base_addr);
+	} else if(bus->parent == NULL) {
+		/* must have a dino above it, reparent the resources
+		 * into the dino window */
+		bus->resource[0] = &(dino_dev->hba.io_space);
+		bus->resource[1] = &(dino_dev->hba.lmmio_space); 
+	} else if(bus->self) {
+		int i;
 
-	/* If this is a PCI-PCI Bridge, read the window registers etc */
-	if (bus->self)
 		pci_read_bridge_bases(bus);
 
+
+		for(i = 0; i < PCI_NUM_RESOURCES; i++) {
+			if((bus->self->resource[i].flags & (IORESOURCE_IO | IORESOURCE_MEM)) == 0)
+				continue;
+			
+			if(bus->self->resource[i].flags & IORESOURCE_MEM) {
+				/* There's a quirk to alignment of
+				 * bridge memory resources: the start
+				 * is the alignment and start-end is
+				 * the size.  However, firmware will
+				 * have assigned start and end, so we
+				 * need to take this into account */
+				bus->self->resource[i].end = bus->self->resource[i].end - bus->self->resource[i].start + DINO_BRIDGE_ALIGN;
+				bus->self->resource[i].start = DINO_BRIDGE_ALIGN;
+				
+			}
+					
+			DBG("DEBUG %s assigning %d [0x%lx,0x%lx]\n",
+			    bus->self->dev.bus_id, i,
+			    bus->self->resource[i].start,
+			    bus->self->resource[i].end);
+			pci_assign_resource(bus->self, i);
+			DBG("DEBUG %s after assign %d [0x%lx,0x%lx]\n",
+			    bus->self->dev.bus_id, i,
+			    bus->self->resource[i].start,
+			    bus->self->resource[i].end);
+		}
+	}
+
+
 	list_for_each(ln, &bus->devices) {
 		int i;
 
@@ -595,9 +638,39 @@
 			}
 #endif
 		}
+		/* null out the ROM resource if there is one (we don't
+		 * care about an expansion rom on parisc, since it
+		 * usually contains (x86) bios code) */
+		dev->resource[PCI_ROM_RESOURCE].flags = 0;
+		dev->resource[PCI_ROM_RESOURCE].start = 0;
+		dev->resource[PCI_ROM_RESOURCE].end = 0;
+				
+		if(dev->irq == 255) {
+
+#ifdef DINO_FIX_UNASSIGNED_INTERRUPTS
+
+			/* This code tries to assign an unassigned
+			 * interrupt.  Leave it disabled unless you
+			 * *really* know what you're doing since the
+			 * pin<->interrupt line mapping varies by bus
+			 * and machine */
+
+			u32 irq_pin;
+			
+			dino_cfg_read(dev->bus, dev->devfn, PCI_INTERRUPT_PIN, 1, &irq_pin);
+			dev->irq = (irq_pin + PCI_SLOT(dev->devfn) - 1) % 4 ;
+			dino_cfg_write(dev->bus, dev->devfn, PCI_INTERRUPT_LINE, 1, dev->irq);
+			dev->irq += dino_dev->dino_region->data.irqbase
+			printk(KERN_WARNING "Device %s has undefined IRQ, setting to %d\n", dev->slot_name, irq_pin);
+#else
+			dev->irq = 65535;
+			printk(KERN_WARNING "Device %s has unassigned IRQ\n", dev->slot_name);	
+#endif
+		} else {
 
-		/* Adjust INT_LINE for that busses region */
-		dev->irq = dino_dev->dino_region->data.irqbase + dev->irq;
+			/* Adjust INT_LINE for that busses region */
+			dev->irq += dino_dev->dino_region->data.irqbase;
+		}
 	}
 }
 
@@ -826,6 +899,7 @@
 	const int name_len = 32;
 	char *name;
 	int is_cujo = 0;
+	struct pci_bus *bus;
 
 	name = kmalloc(name_len, GFP_KERNEL);
 	if(name)
@@ -911,9 +985,20 @@
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = 
-		pci_scan_bus_parented(&dev->dev, dino_dev->hba.hba_num,
-				      &dino_cfg_ops, NULL);
+	bus = pci_scan_bus_parented(&dev->dev, dino_current_bus,
+				    &dino_cfg_ops, NULL);
+	if(bus) {
+		/* This code *depends* on scanning being single threaded
+		 * if it isn't, this global bus number count will fail
+		 */
+		dino_current_bus = bus->subordinate + 1;
+		pci_bus_assign_resources(bus);
+	} else {
+		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (probably duplicate bus number %d)\n", dev->dev.bus_id, dino_current_bus);
+		/* increment the bus number in case of duplicates */
+		dino_current_bus++;
+	}
+	dino_dev->hba.hba_bus = bus;
 	return 0;
 }
 



From - Thu Nov 08 21:30:17 2018
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [RFC] Compat siginfo_t for 64-bit kernels running
	32-bit userspace.
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-----------------------------------------------------------
	Signal structures, their sizes, 
	and a generic compatibility
	layer for copying siginfo_t into
	userspace.
-----------------------------------------------------------

Abstract.
=========

When the Linux kernel has word widths that are different from userspace, 
certain operations require conversions. In particular we examine signals 
and their associated data structures. Proposed is an initial framework 
for copying siginfo_t, in a generic fashion, to a userspace address.

It is the hope of the author to raise awareness, get feedback, and see 
if anyone else is thinking about similar changes.

Comments welcome, flames welcome :)

Introduction.
=============

I recently cleaned up parisc's signal frame code to account for running 
a 64-bit kernel and a 32-bit userspace. James Bottomley was kind enough 
to do the initial work and prompt me to cleanup the really ugly stuff. 
Matthew Wilcox said "I'm not tall enough to play with signals, email 
XXXXXXXX, it's the right place."

The process of cleanup wasn't very hard, but my colleagues, noticing I
had started work on something that was long left untouched, began 
poking me in other directions. Apparently siginfo_t, ucontext_t, stack_t 
and various other structures were not being read properly from userspace 
signal handlers. The signal handler is passed both a siginfo_t and a
ucontext_t (for *context() function calls) from the kernel.

What I did, and what I always do, was to attempt to copy sparc64 :}
Unfortunately they had rolled their own support for this, as had ppc64
and many other arches.

I began with something simple. Many arches use the generic siginfo_t, 
and providing compat would initially simplify the parisc work.

Generic Changes:
================

o Add a generic 'compat_copy_siginfo_to_user' (kernel/compat_signal.c)
o Add a generic siginfo_t (include/asm-generic/compat_siginfo.h)
o Add generic signal structures (include/asm-generic/compat_signal.h)

The current generic kernel/signal.c has the ability to use a per-arch 
copy_siginfo_to_user function. This function could in general convert the 
kernels view of siginfo into the userspace required size. 

e.g.

	* kernel/signal.c (copy_siginfo_to_user):

#ifndef HAVE_ARCH_COPY_SIGINFO_TO_USER
copy_siginfo_to_user
{
	...
	check thread personality
	if the thread is PER_LINUX32
		return compat_copy_siginfo_to_user
	else
		Do it the normal way.
	...
}
#endif

Cases covered:
- Kernel native, process native.
- Kernel native, process non-native 32-bit.

Pro:
- Generic. Don't have to add special arch code.

Con:
- Extra branch/function in signal delivery fast path.

Thoughts:
- Arches that need speed can and will rewrite their signal path
  direclty from the syscall layer. However, they can still make
  use of the generic structures and functions. Normally in parisc
  we make such code disappear with the use of the __LP64__ macro,
  can this be done generically? Aside from that just define
  ARCH_HAVE_COPY_SIGINFO_TO_USER and do what you will.

- The meaning of PER_LINUX32 must be clear. The process is 
  non-native and 32-bit.

- When do the 128-bit processors running compat 64-bit 
  userspace arrive? (PER_LINUX64)

Arch Changes:
=============

o include/asm-parisc/

	compat_rt_sigframe.h (Arch dependant rt signal frame)
	compat_siginfo.h -> #include <asm-generic/compat_siginfo.h>
	compat_signal.h -> #include <asm-generic/signal.h>
	compat_ucontext.h (Arch dependant, passed to signal handlers)
	compat.h (Arch dependant mcontext_t)

o arch/parisc/kernel/signal.c

	Check personality on frame setup path, call code in
	arch/parisc/kernel/signal32.c to setup and restore 32-bit signal
	contexts (ucontext_t), along with calling the kernels
	compat_copy_siginfo_to_user to get the job done.

	Removed old and crufty arch specific copy_siginfo_to_user.

Defining a compat signal frame is not an easy task and requires 
converting all the structure elements into compat types.
A number of arches including parisc use the generic siginfo_t and
benefit immediately from a generic version.

I was *tempted* by trying to define a generic ucontext_t since *most* 
arches use exactly the same setup. However, the subsequent header 
untangling left me unable to do it cleanly. Had I the will It might 
be possible, subsequent to that a generic copy_ucontext_to_user could 
be written, since it's a similar operation to copying the siginfo.

Thoughts:

I ran into a structure padding problem. There is no real ELF32 ABI for 
parisc and I had to pad the compat_ucontext structure. This type of 
massaging might be required for any arch in order to get structures to 
match. In this case the generic functions are usable, but the generic
structures are not.

What's left todo:
=================

Inform other architectures that the framework is in place and let them
cleanup their arch code. Most arches are using the generic siginfo_t and
will thus benefit. I'm tempted to port another arch to show how it works
for two arches.

I keep thinking there has to be a way to do compat, signal handling, and
compat signal handling in some easier way.

What's been done:
=================

Please remember this is an RFC, and a first cut at the code, there might
be mistakes, and I'm sure someone won't like it :}

I've moved parisc over to the new setup, removed our custom
copy_siginfo_to_user. parisc distinguishes between native and non-native
processes during the rt frame setup and restore phases and then branches
into the compat path.

Diff is generated against -rlinus cvs.parisc-linux.org so it applies to 2.6.

---
 include/asm-generic/compat_siginfo.h |  154 +++++++++++++++++++++++++
 include/asm-generic/compat_signal.h  |   28 ++++
 kernel/compat_signal.c               |  126 ++++++++++++++++++++
 kernel/signal.c                      |    8 +
 4 files changed, 316 insertions(+)
---

2003-12-08  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* kernel/signal.c (copy_siginfo_to_user): If process is
	PER_LINUX32 call compat_copy_siginfo_to_user.
	* kernel/compat_signal.c: New file.
	* include/asm-generic/compat_siginfo.h: New file.
	* include/asm-generic/compat_signal.h: New file.

--- kernel/signal.c	24 Nov 2003 03:16:26 -0000	1.8
+++ kernel/signal.c	10 Dec 2003 22:28:47 -0000
@@ -24,9 +24,11 @@
 #include <linux/binfmts.h>
 #include <linux/security.h>
 #include <linux/ptrace.h>
+#include <linux/personality.h>
 #include <asm/param.h>
 #include <asm/uaccess.h>
 #include <asm/siginfo.h>
+#include <asm/compat_siginfo.h>
 
 /*
  * SLAB caches for signal bits.
@@ -2006,6 +2008,12 @@ int copy_siginfo_to_user(siginfo_t __use
 	if (from->si_code < 0)
 		return __copy_to_user(to, from, sizeof(siginfo_t))
 			? -EFAULT : 0;
+
+	/* Use compat_siginfo_t with 32-bit signals */
+	if(personality(current->personality) == PER_LINUX32){
+		return compat_copy_siginfo_to_user((compat_siginfo_t __user *)to,from);
+	}
+	
 	/*
 	 * If you change siginfo_t structure, please be sure
 	 * this code is fixed accordingly.
--- kernel/compat_signal.c.orig	1969-12-31 19:00:00.000000000 -0500
+++ kernel/compat_signal.c	2003-12-02 23:18:13.000000000 -0500
@@ -0,0 +1,126 @@
+/*
+ *  Copyright (C) 2003 Carlos O'Donell
+ * 
+ *  2003-12-20  Carlos O'Donell
+ *              Copied linux/kernel/compat_signal.c (copy_siginfo_to_user)
+ *              and modified to use compat_siginfo_t for thunking down to
+ *              32-bit userspace with an ELF64 kernel.
+ *              
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/*#define __KERNEL_SYSCALLS__*/
+
+#include <asm/errno.h>
+#include <asm/compat_siginfo.h>
+#include <asm/uaccess.h>
+#include <asm/siginfo.h>
+
+#ifndef HAVE_ARCH_COMPAT_COPY_SIGINFO_TO_USER
+
+int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, siginfo_t *from)
+{
+	int err;
+	compat_siginfo_t compat_from;	
+
+	if (!access_ok (VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
+		return -EFAULT;
+	
+	/*
+	 * If you change siginfo_t structure, please be sure
+	 * this code is fixed accordingly.
+	 * It should never copy any pad contained in the structure
+	 * to avoid security leaks, but must copy the generic
+	 * 3 ints plus the relevant union member.
+	 */
+
+	/* Convert structure, don't leak anything in the copy */
+	memset(&compat_from,'\0',sizeof(compat_siginfo_t));
+	compat_from.si_signo = (compat_int_t)(from->si_signo);
+	compat_from.si_errno = (compat_int_t)(from->si_errno);
+	compat_from.si_code = (compat_int_t)(from->si_code);
+	
+	if (from->si_code < 0)
+		return __copy_to_user(to, &compat_from, sizeof(compat_siginfo_t))
+			? -EFAULT : 0;
+	
+	err = __put_user(compat_from.si_signo, &to->si_signo);
+	err |= __put_user(compat_from.si_errno, &to->si_errno);
+	err |= __put_user(compat_from.si_code, &to->si_code);
+	
+	switch (from->si_code & __SI_MASK) {
+	case __SI_KILL:
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		break;
+	case __SI_TIMER:
+		compat_from.si_pid = (compat_timer_t)(from->si_tid);
+		compat_from.si_overrun = (compat_int_t)(from->si_overrun);
+		compat_from.si_ptr = (compat_uptr_t)((u64)(from->si_ptr) & 0xffffffffUL);
+		err |= __put_user(compat_from.si_tid, &to->si_tid);
+		err |= __put_user(compat_from.si_overrun, &to->si_overrun);
+		err |= __put_user(compat_from.si_ptr, &to->si_ptr);
+		break;
+	case __SI_POLL:
+		compat_from.si_band = (__ARCH_SI_COMPAT_BAND_T)(from->si_band);
+		compat_from.si_fd = (compat_int_t)(from->si_fd);
+		err |= __put_user(compat_from.si_band, &to->si_band);
+		err |= __put_user(compat_from.si_fd, &to->si_fd);
+		break;
+	case __SI_FAULT:
+		compat_from.si_addr = (compat_uptr_t)((u64)(from->si_addr) & 0xffffffffUL);
+		err |= __put_user(compat_from.si_addr, &to->si_addr);
+#ifdef __ARCH_SI_TRAPNO
+		compat_from.si_trapno = (compat_int_t)(from->si_addr);
+		err |= __put_user(compat_from.si_trapno, &to->si_trapno);
+#endif
+		break;
+	case __SI_CHLD:
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		compat_from.si_status = (compat_int_t)(from->si_status);
+		compat_from.si_utime = (compat_clock_t)(from->si_utime);
+		compat_from.si_stime = (compat_clock_t)(from->si_stime);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		err |= __put_user(compat_from.si_status, &to->si_status);
+		err |= __put_user(compat_from.si_utime, &to->si_utime);
+		err |= __put_user(compat_from.si_stime, &to->si_stime);
+		break;
+	case __SI_RT: /* This is not generated by the kernel as of now. */
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		compat_from.si_int = (compat_int_t)(from->si_int);
+		compat_from.si_ptr = (compat_uptr_t)((u64)(from->si_ptr) & 0xffffffffUL);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		err |= __put_user(compat_from.si_int, &to->si_int);
+		err |= __put_user(compat_from.si_ptr, &to->si_ptr);
+		break;
+	default: /* this is just in case for now ... */
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		break;
+	}
+	return err;
+}
+
+#endif
--- include/asm-generic/compat_siginfo.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ include/asm-generic/compat_siginfo.h	2003-11-28 07:49:19.000000000 -0500
@@ -0,0 +1,154 @@
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <linux/compat.h>
+
+#ifndef _ASM_GENERIC_COMPAT_SIGINFO_H
+#define _ASM_GENERIC_COMPAT_SIGINFO_H
+
+/* compat view of sigval_t */
+typedef union compat_sigval {
+	compat_int_t sival_int;
+	compat_uptr_t sival_ptr;
+} compat_sigval_t;
+
+/*
+ * This is the size (including padding) of the part of the
+ * struct siginfo that is before the union.
+ */
+#ifndef __ARCH_SI_COMPAT_PREAMBLE_SIZE
+#define __ARCH_SI_COMPAT_PREAMBLE_SIZE	(3 * sizeof(int))
+#endif
+
+#define SI_COMPAT_MAX_SIZE	128
+#ifndef SI_COMPAT_PAD_SIZE
+#define SI_COMPAT_PAD_SIZE	((SI_COMPAT_MAX_SIZE - __ARCH_SI_COMPAT_PREAMBLE_SIZE) / sizeof(int))
+#endif
+
+/* ELF32 view of si.uid_t */
+#ifndef __ARCH_SI_COMPAT_UID_T
+#define __ARCH_SI_COMPAT_UID_T compat_uid_t
+#endif
+
+/* ELF32 view of si.band_t */
+#ifndef __ARCH_SI_COMPAT_BAND_T
+#define __ARCH_SI_COMPAT_BAND_T compat_int_t
+#endif
+
+#ifndef HAVE_ARCH_COMPAT_SIGINFO_T
+
+/* Compat (ELF32) view of siginfo_t */
+typedef struct compat_siginfo {
+	compat_int_t si_signo;
+	compat_int_t si_errno;
+	compat_int_t si_code;
+
+	union {
+		compat_int_t _pad[SI_COMPAT_PAD_SIZE];
+
+		/* kill() */
+		struct {
+			compat_pid_t _pid;	/* sender's pid */
+			__ARCH_SI_COMPAT_UID_T _uid;	/* sender's uid */
+		} _kill;
+
+		/* POSIX.1b timers */
+		struct {
+			compat_timer_t _tid;	/* timer id */
+			compat_int_t _overrun;		/* overrun count */
+			char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
+			compat_sigval_t _sigval;	/* same as below */
+			compat_int_t _sys_private;       /* not to be passed to user */
+		} _timer;
+
+		/* POSIX.1b signals */
+		struct {
+			compat_pid_t _pid;		/* sender's pid */
+			__ARCH_SI_COMPAT_UID_T _uid;	/* sender's uid */
+			compat_sigval_t _sigval;
+		} _rt;
+
+		/* SIGCHLD */
+		struct {
+			compat_pid_t _pid;		/* which child */
+			__ARCH_SI_COMPAT_UID_T _uid;	/* sender's uid */
+			compat_int_t _status;		/* exit code */
+			compat_clock_t _utime;
+			compat_clock_t _stime;
+		} _sigchld;
+
+		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
+		struct {
+			compat_uptr_t _addr; /* faulting insn/memory ref. */
+#ifdef __ARCH_SI_TRAPNO
+			compat_int_t _trapno;	/* TRAP # which caused the signal */
+#endif
+		} _sigfault;
+
+		/* SIGPOLL */
+		struct {
+			__ARCH_SI_COMPAT_BAND_T _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
+			compat_int_t _fd;
+		} _sigpoll;
+	} _sifields;
+} compat_siginfo_t;
+#endif
+
+/*
+ * sigevent definitions
+ * 
+ * It seems likely that SIGEV_THREAD will have to be handled from 
+ * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
+ * thread manager then catches and does the appropriate nonsense.
+ * However, everything is written out here so as to not get lost.
+ */
+
+#define SIGEV_COMPAT_MAX_SIZE	64
+#ifndef SIGEV_COMPAT_PAD_SIZE
+#define SIGEV_COMPAT_PAD_SIZE	((SIGEV_COMPAT_MAX_SIZE/sizeof(int)) - 3)
+#endif
+
+#ifndef HAVE_ARCH_COMPAT_SIGEVENT_T
+
+/* ELF32 view of sigevent_t */
+typedef struct compat_sigevent {
+	compat_sigval_t sigev_value;
+	compat_int_t sigev_signo;
+	compat_int_t sigev_notify;
+	union {
+		compat_int_t _pad[SIGEV_COMPAT_PAD_SIZE];
+		compat_int_t _tid;
+
+		struct {
+			compat_uptr_t _function;
+			compat_uptr_t _attribute;	/* really pthread_attr_t */
+		} _sigev_thread;
+	} _sigev_un;
+} compat_sigevent_t;
+
+#endif
+
+#ifdef __KERNEL__
+
+struct compat_siginfo;
+/*void do_schedule_next_timer(struct siginfo *info);*/
+
+#ifndef HAVE_ARCH_COMPAT_COPY_SIGINFO
+
+#include <linux/string.h>
+
+static inline void compat_copy_siginfo(struct compat_siginfo *to, struct compat_siginfo *from)
+{
+	if (from->si_code < 0)
+		memcpy(to, from, sizeof(*to));
+	else
+		/* _sigchld is currently the largest know union member */
+		memcpy(to, from, __ARCH_SI_COMPAT_PREAMBLE_SIZE + sizeof(from->_sifields._sigchld));
+}
+
+#endif
+
+extern int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, struct siginfo *from);
+
+#endif /* __KERNEL__ */
+
+#endif
--- include/asm-generic/compat_signal.h.orig	1969-12-31 19:00:00.000000000 -0500
+++ include/asm-generic/compat_signal.h	2003-12-02 23:01:44.000000000 -0500
@@ -0,0 +1,28 @@
+#ifndef _ASM_GENERIC_COMPAT_SIGNAL_H
+#define _ASM_GENERIC_COMPAT_SIGNAL_H
+
+# ifndef __ASSEMBLY__
+#  include <linux/types.h>
+
+typedef compat_uptr_t compat_sighandler_t;
+
+typedef struct compat_sigaltstack {
+	compat_uptr_t ss_sp;
+	compat_int_t ss_flags;
+	compat_size_t ss_size;
+} compat_stack_t;
+
+#  ifdef __KERNEL__
+
+/* Most things should be clean enough to redefine this at will, if care
+   is taken to make libc match.  */
+
+struct compat_sigaction {
+	compat_sighandler_t sa_handler;
+	compat_uint_t sa_flags;
+	compat_sigset_t sa_mask;		/* mask last for extensibility */
+};
+
+#  endif /* __KERNEL__ */
+# endif /* !__ASSEMBLY */
+#endif /* _ASM_GENERIC_COMPAT_SIGNAL_H */

----- End forwarded message -----


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Broke the tree.
Date: Wed, 10 Dec 2003 19:37:29 -0500
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pa,

I broke the tree. I fixed the three. Added CONFIG_COMPAT patches so
32-bit builds work aswell. Testing, will checkin in a minute.

Apologies,
c.



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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 carlos
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On Wed, Dec 10, 2003 at 03:40:26PM -0700, Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	carlos	03/12/10 15:40:25
> 
> Modified files:
> 	include/asm-parisc: compat.h rt_sigframe.h siginfo.h ucontext.h 
> 
> Log message:
> Cleanup for non-native thread signals, and ensure that during 64-bit builds everything works too.

You may have noticed the following:

  8 #define SIGRETURN_TRAMP 4
  9 #define SIGRESTARTBLOCK_TRAMP 5 
 10 #define TRAMP_SIZE (SIGRETURN_TRAMP + SIGRESTARTBLOCK_TRAMP)
 11 
 12 struct rt_sigframe {
 13         /* XXX: Must match trampoline size in arch/parisc/kernel/signal.c 
 14                 Secondary to that it must protect the ERESTART_RESTARTBLOCK
 15                 trampoline we left on the stack (we were bad and didn't 
 16                 change sp so we could run really fast.) */
 17         unsigned int tramp[TRAMP_SIZE];
 18         struct siginfo info;
 19         struct ucontext uc;
 20 };

And wondered "Why do people write XXX: followed by some scary sounding
stuff?" Here is the part where we clarify what this means.

When Randolph wrote the ERESTART_RESTARTBLOCK code he used a stack
trampoline to rewrite the syscall entry into the kernel with a different
syscall number. This stack trampoline is *unprotected* and the stack
pointer is not adjusted.

If one were to take a signal while executing the ERESTART_RESTARTBLOCK
stack trampoline the signal's frame would destroy the trampoline. Instead
we *notch* 5 more words out of the front of the signal frame to protect a
possible ERESTART_RESTARTBLOCK trampoline. The signal code used to do
exactly the same thing before, it had it's own notch for the sigreturn
trampoline on the stack. Thus now we protect both trampolines.

What if you took another ERESTART_RESTARTBLOCK signal while walking the
last ERESTART_RESTARTBLOCK trampoline? Well that scenario isn't allowed
to happen, and according to Linux we have to disable
ERESTART_RESTARTBLOCK until we are back in the kernel handling the
restart. We still haven't fixed this last bit.

c.




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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 carlos
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On Wed, Dec 10, 2003 at 05:48:56PM -0700, Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	carlos	03/12/10 17:48:56
> 
> Modified files:
> 	include/asm-parisc: rt_sigframe.h 
> 	kernel         : Makefile signal.c 
> 
> Log message:
> Wrap the signal compat in CONFIG_COMPAT so 32-bit builds work properly.

I assumed CONFIG_COMPAT=Y for all the scenarios, and when Helge said his
32-bit build didn't work I had to slap my forehead.

So this patch removes all the compat signal code when doing a 32-bit
compile.

c.


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	stnwslbctspw
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<html>Be.. strong and youthful, feel incredible!! oiof
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
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HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
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--358D9_D_8_EE6_--



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Subject: [parisc-linux] Sexy. movie stars tricks how to get that special
	someone!! ykvmkc
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--BF_97CFD62DC6.AB4C_CA.
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<html>Sexy. movie stars tricks how to get that special someone!! ykvmkc 
<head>
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<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
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</head>

<body bgcolor=3D"#000000" text=3D"#000000" link=3D"#00FF00" vlink=3D"#00FF=
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<center><h3><font color=3D"#FF00FF" face=3D"verdana">Bob Hope, JFK, Marily=
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h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FFFFFF" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FFFFFF" face=3D"verdana"><a href=3D"htt=
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--BF_97CFD62DC6.AB4C_CA.--



From - Thu Nov 08 21:30:18 2018
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From: Achim.Stolze@t-online.de (Achim Stolze)
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Subject: [parisc-linux] C180 - cannot get KDE nor Gnome get running
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Hello all!
Woody is now running on my C180. But I cannot get KDE or Gnome started.
I tried to configure XFree before starting XServer, but the command 
startx causes the error message 
"... XIO: fatal IO error 232 (connection reset by peer) on X Server ":0.0" after 0 requests ... with 0 events 
remaining."
 
I am not sure which graphics driver I should use ...

How can I get KDE running?
 
Best regards,
 
Achim.




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Subject: [parisc-linux] Installation on a 712/80
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I just picked up one of these systems yesterday, and I'm interested in how =
other folks who own this model went about installing Woody.  As I don't h=
ave a CDROM, I would like to know these folks' experiences with floppy or=
 net installations.  I have read the documentation and know how to procee=
d; I would like a little guidance as to what it the best method.  For the=
 sake of information, I have another machine that is running TFTP and can=
 serve up the CDs via NFS.

Cheers,
BB
--
Brian Barber, Principal Consultant
Integrity Computing (www.integritycomputing.tk)


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On Thu, 2003-12-11 at 13:29, Achim Stolze wrote:
> Hello all!
> Woody is now running on my C180. But I cannot get KDE or Gnome started.
> I tried to configure XFree before starting XServer, but the command 
> startx causes the error message 
> "... XIO: fatal IO error 232 (connection reset by peer) on X Server ":0.0" after 0 requests ... with 0 events 
> remaining."
>  
> I am not sure which graphics driver I should use ...
> 
> How can I get KDE running?

There were a number of compiler caused bugs in libXt that prevent it
from executing.

I can get gnome (and presumably kde) running happily on my B180, but
only if I use the debian testing release, which does have the fixed Xt
library.

The Xserver you should be using is the framebuffer one (and it *must* be
configured to match the STI framebuffer settings as output by the kernel
on boot up exactly).

James




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Please unsubscribe me!




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On Thu, Dec 11, 2003 at 07:29:11PM +0100, Achim Stolze wrote:
> Hello all!
> Woody is now running on my C180. But I cannot get KDE or Gnome started.
> I tried to configure XFree before starting XServer, but the command 
> startx causes the error message 
> "... XIO: fatal IO error 232 (connection reset by peer) on X Server ":0.0" 
> after 0 requests ... with 0 events remaining."
> 
> I am not sure which graphics driver I should use ...

The default kernels have both CONFIG_FB_STI and CONFIG_FBCON_STI
enabled. That's the only driver that is supported. STI does not
support all cards. Find out which model card you have and then
search the mail archive (http://lists.parisc-linux.org)
and/or check the FAQ at www.parisc-linux.org. If you get the
penguin in the top left corner of the screen, STI FB driver
is working.

James previous comment on "match STI framebuffer settings" is a
crucial one. Hitting <Tab> key at power up will let one select
different screen resolutions and refresh rates. When parisc-linux
boots, the STI driver will print those settings as well.
Only those settings are allowed in your /etc/X11/XF86Config-4 file.

hth,
grant


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On Thu, Dec 11, 2003 at 10:52:17AM -0800, Chris Hunter wrote:

please see http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

grant


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On Wed, Dec 10, 2003 at 04:54:24PM -0500, James Bottomley wrote:
> +/* The alignment contraints for PCI bridges under dino */
> +#define DINO_BRIDGE_ALIGN 0x100000

hrmm...I was expecting this to be defined in include/linux/pci.h
but it's not. "pbus_size_mem()" seems to take care of this
in the drivers/pci generic code.

> +		/* null out the ROM resource if there is one (we don't
> +		 * care about an expansion rom on parisc, since it
> +		 * usually contains (x86) bios code) */
> +		dev->resource[PCI_ROM_RESOURCE].flags = 0;
> +		dev->resource[PCI_ROM_RESOURCE].start = 0;
> +		dev->resource[PCI_ROM_RESOURCE].end = 0;

I just realized some drivers may need to access data (not code)
in the ROM. I'm not aware of any but I don't want to under
estimate how creative people can get. Just something to beware
when bringing up new cards.

The rest looked fine to me. I don't maintain any dino-based
machines any more and thus can't test it.

thanks,
grant


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On Fri, Dec 12, 2003 at 12:48:38AM -0700, Grant Grundler wrote:
> On Wed, Dec 10, 2003 at 04:54:24PM -0500, James Bottomley wrote:
> > +/* The alignment contraints for PCI bridges under dino */
> > +#define DINO_BRIDGE_ALIGN 0x100000
> 
> hrmm...I was expecting this to be defined in include/linux/pci.h
> but it's not. "pbus_size_mem()" seems to take care of this
> in the drivers/pci generic code.
> 
> > +		/* null out the ROM resource if there is one (we don't
> > +		 * care about an expansion rom on parisc, since it
> > +		 * usually contains (x86) bios code) */
> > +		dev->resource[PCI_ROM_RESOURCE].flags = 0;
> > +		dev->resource[PCI_ROM_RESOURCE].start = 0;
> > +		dev->resource[PCI_ROM_RESOURCE].end = 0;
> 
> I just realized some drivers may need to access data (not code)
> in the ROM. I'm not aware of any but I don't want to under
> estimate how creative people can get. Just something to beware
> when bringing up new cards.

doesn't this also break PCI Vis-EG and FX cards setup ? On these
cards the ROM contains PARISC firmware, which we need.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]


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On Fri, 2003-12-12 at 02:48, Grant Grundler wrote:
> I just realized some drivers may need to access data (not code)
> in the ROM. I'm not aware of any but I don't want to under
> estimate how creative people can get. Just something to beware
> when bringing up new cards.

Hmm, well, we can back it out if people start hitting problems.

The reason for it is the Quad tulip card:  The bridge chip only requests
a 1MB PCI window, but each chip has two memory BARs: the iomem region
(128bytes, with page alignment) and the ROM (256Kb).  The bridge
allocation routines seem to work the BARs in reverse, so by the time the
ROM BARs are allocated, the memory window is full and none of the
devices can function.

I suppose I could look at a two phase approach: count all the resources
and sizes and then resize the bridge window appropriately...we actually
already need to do this for the GSC window on my C360...firmware
allocates too much space in the GSC/8 window and I run out of iomem
space for devices on the GSC/10.

James




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On Fri, 2003-12-12 at 06:30, Thomas Bogendoerfer wrote:
> doesn't this also break PCI Vis-EG and FX cards setup ? On these
> cards the ROM contains PARISC firmware, which we need.

Only if we physically need acess to the ROMs from the linux driver after
the firmware is used...this is rarely true, even on x86.  I'm afraid I
only have GSC Vis-EG cards, so I can't test this though.

James




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On Fri, Dec 12, 2003 at 10:00:29AM -0500, James Bottomley wrote:
> On Fri, 2003-12-12 at 06:30, Thomas Bogendoerfer wrote:
> > doesn't this also break PCI Vis-EG and FX cards setup ? On these
> > cards the ROM contains PARISC firmware, which we need.
> 
> Only if we physically need acess to the ROMs from the linux driver after
> the firmware is used...this is rarely true, even on x86.  I'm afraid I
> only have GSC Vis-EG cards, so I can't test this though.

sticon/stifb map the PCI ROM to copy out routines and fonts during
startup of the drivers.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]


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On Gwe, 2003-12-12 at 14:58, James Bottomley wrote:
> The reason for it is the Quad tulip card:  The bridge chip only requests
> a 1MB PCI window, but each chip has two memory BARs: the iomem region
> (128bytes, with page alignment) and the ROM (256Kb).  The bridge
> allocation routines seem to work the BARs in reverse, so by the time the
> ROM BARs are allocated, the memory window is full and none of the
> devices can function.

You don't need the ROM mapped expect for reading stuff like MAC, and you
can do that by mapping each port over the same address range.



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On Fri, Dec 12, 2003 at 07:28:18PM +0000, Alan Cox wrote:
> You don't need the ROM mapped expect for reading stuff like MAC, and you
> can do that by mapping each port over the same address range.

interesting trick.
That should work nicely for the 4-port tulip especially.

Can we allocate/map only the first tulip's ROM and point the remaining
tulip's ROM_RESOURCE at the first one?

I'm worried multiple PCI devices could attempt to respond to
the MMIO transaction and fight over the bus.

PCI Hotplug makes my suggestion at bad idea to generalize
for other arches.

thanks,
grant


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From: Grant Grundler <grundler@parisc-linux.org>
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On Fri, Dec 12, 2003 at 07:28:18PM +0000, Alan Cox wrote:
> You don't need the ROM mapped expect for reading stuff like MAC, and you
> can do that by mapping each port over the same address range.

doh...MAC is unique to each card...delete my previous mail.

But then the basic problem James is having is not with the virtual
address the ROM gets mapped to, but rather the PCI bus MMIO address
assigned to the ROM BAR.

grant


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From: Tomas Reinicke <ctbr@home.se>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] C180XP and B132L and X
Date: Sat, 13 Dec 2003 08:45:12 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:20375

I have recently got hold of one C180XP and one B132L with the specification=
s=20
below.

C180XP
Model No.		A4523AR
GRAPHICS		HP A4244A_V
HDD				SEAGATE ST34572WD > 3.5 inch Ultra Wide SCSI (68 pin) HV Differential
				4.55 GB 7200 RPM
RAM			256Mb
CD				TOSHIBA CD-ROM XM-5401TA
The following article numbers are present on the graphics cards in the C180=
XP
A4248A
A4244A
A4246-66002
A3510-40 A4244-66003.

B132L
Model No.		A4190A
GRAPHICS		HP A4071B_LZ
HDD				IBM DORS-32160 > (2.1GB). 3 1/2" 5400 RPM Single Ended Fast/Wide SCSI
RAM			128Mb

My intention is to install Debian woody.
=46rom parisc-linux.org I understand the both the C180XP and B132L is suppo=
rted.
But my question is now is it possible to get X to work in these machines?
I have searched the net regarding the graphic cards but not found anything =
the=20
is 100% matching the modelnumber that I have.
I would appriciate if someone could clearify this and also give me some=20
genaral tips regarding the installation.



Tomas Reinicke



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Subject: Re: [parisc-linux] C180XP and B132L and X
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On Sat, 13 Dec 2003, Tomas Reinicke wrote:

> I have recently got hold of one C180XP and one B132L with the specifications
> below.
>
> C180XP
> GRAPHICS		HP A4244A_V

[...]

> The following article numbers are present on the graphics cards in the C180XP
> A4248A
> A4244A
> A4246-66002
> A3510-40 A4244-66003.

[...]

> B132L
> Model No.		A4190A
> GRAPHICS		HP A4071B_LZ

[...]

> My intention is to install Debian woody.
> From parisc-linux.org I understand the both the C180XP and B132L is supported.
> But my question is now is it possible to get X to work in these machines?
> I have searched the net regarding the graphic cards but not found anything the
> is 100% matching the modelnumber that I have.

Obviously you didn't look close enough:
http://www.google.ie/search?q=visualize-48+site%3Alists.parisc-linux.org
http://www.google.ie/search?q=a4071b+site%3Alists.parisc-linux.org

The settings for the B132:
http://lists.debian.org/debian-hppa/2002/debian-hppa-200212/msg00011.html

Your graphics card in the C180 is a Visualize-48, I doubt it is supported:

http://lists.parisc-linux.org/pipermail/parisc-linux/2003-April/019824.html


> I would appriciate if someone could clearify this and also give me some
> genaral tips regarding the installation.

Use the netinstall CDs from here:

http://www.pateam.org/cd-images/testing/

the official woody CDs use quite an old kernel that has some problems,
the ones found on the ESIEE website use newer kernels.


 Max


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From: Joel Soete <joel.soete@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: C180XP and B132L and X
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Tomas,

I have no clue about c180 model otc there is no pb to make XFree runing 
on the b132L model.
But there is only one way to implement it (I mean XFree don't supply a 
specific driver): sti-fb which is limited to 8b for the b132 builtin gfx 
(it is well documented on parisc-linux.org FAQ :) )

hth,
    Joel

Tomas Reinicke wrote:

>I have recently got hold of one C180XP and one B132L with the specifications 
>below.
>
>C180XP
>Model No.		A4523AR
>GRAPHICS		HP A4244A_V
>HDD				SEAGATE ST34572WD > 3.5 inch Ultra Wide SCSI (68 pin) HV Differential
>				4.55 GB 7200 RPM
>RAM			256Mb
>CD				TOSHIBA CD-ROM XM-5401TA
>The following article numbers are present on the graphics cards in the C180XP
>A4248A
>A4244A
>A4246-66002
>A3510-40 A4244-66003.
>
>B132L
>Model No.		A4190A
>GRAPHICS		HP A4071B_LZ
>HDD				IBM DORS-32160 > (2.1GB). 3 1/2" 5400 RPM Single Ended Fast/Wide SCSI
>RAM			128Mb
>
>My intention is to install Debian woody.
>From parisc-linux.org I understand the both the C180XP and B132L is supported.
>But my question is now is it possible to get X to work in these machines?
>I have searched the net regarding the graphic cards but not found anything the 
>is 100% matching the modelnumber that I have.
>I would appriciate if someone could clearify this and also give me some 
>genaral tips regarding the installation.
>
>
>
>Tomas Reinicke
>
>
>  
>



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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] proposed changes to dino.c
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On Sad, 2003-12-13 at 03:51, Grant Grundler wrote:
> On Fri, Dec 12, 2003 at 07:28:18PM +0000, Alan Cox wrote:
> > You don't need the ROM mapped expect for reading stuff like MAC, and you
> > can do that by mapping each port over the same address range.
> 
> interesting trick.
> That should work nicely for the 4-port tulip especially.
> 
> Can we allocate/map only the first tulip's ROM and point the remaining
> tulip's ROM_RESOURCE at the first one?
> 
> I'm worried multiple PCI devices could attempt to respond to
> the MMIO transaction and fight over the bus.

If the other ROMs are disabled then I don't see that happening. Its an
old trick btw - I claim no originality here. Don Becker had some driver
code that did this, and the graphics people in Linux and Windows pull
the trick of unmapping the frame buffer to use as the ROM map
temporarily



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On Sat, 2003-12-13 at 10:33, Alan Cox wrote:
> If the other ROMs are disabled then I don't see that happening. Its an
> old trick btw - I claim no originality here. Don Becker had some driver
> code that did this, and the graphics people in Linux and Windows pull
> the trick of unmapping the frame buffer to use as the ROM map
> temporarily

Hmm, yes...I completely blow away the ROM bar in the patch...what I
should do is just to remove it's IORESOURCE_MEM flag so it isn't
ordinarily allocated (but it's requested location and size are still
available).  Then any driver that wanted access could get it...we still
have 1020kB available for mapping up to three roms in the bridge window.

The alternative is just to resize the bridge window after we've counted
the resources...I'm less enthusiastic about this beacuse the dino PCI
window has a maximum size of 8MB for everything on the bus...plug a few
of these four ports into a dino PCI bus and we'll still run out of
memory.

James




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Subject: Re: [parisc-linux] proposed changes to dino.c
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Cc: PARISC list <parisc-linux@lists.parisc-linux.org>,
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On Sat, Dec 13, 2003 at 10:45:54AM -0500, James Bottomley wrote:
> Hmm, yes...I completely blow away the ROM bar in the patch...what I
> should do is just to remove it's IORESOURCE_MEM flag so it isn't
> ordinarily allocated (but it's requested location and size are still
> available).  Then any driver that wanted access could get it...we still
> have 1020kB available for mapping up to three roms in the bridge window.

I rather think the generic PCI code should be fixed to not enable the
ROM resource by default.  Many PCI devices do not cope well with this
*anyway*, we definitely shouldn't be doing it in anything except the
driver.

> The alternative is just to resize the bridge window after we've counted
> the resources...I'm less enthusiastic about this beacuse the dino PCI
> window has a maximum size of 8MB for everything on the bus...plug a few
> of these four ports into a dino PCI bus and we'll still run out of
> memory.

Well, we could allocate more than 8MB for a Dino's PCI window.  As I
recall (should check the spec ...) we can set any of the 30 bits in
the status register to forward any of those 8MB chunks to the PCI bus.
I think we could also get away with allocating less than 8MB to an
individual PCI bus by programming the CCIO registers to not forward all
that space to the parent GSC bus.  But none of this has been necessay so
far, and I hope we don't manage to concoct a situation where it might be.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Sat, Dec 13, 2003 at 08:33:43PM +0000, Matthew Wilcox wrote:
> Well, we could allocate more than 8MB for a Dino's PCI window.  As I
> recall (should check the spec ...) we can set any of the 30 bits in
> the status register to forward any of those 8MB chunks to the PCI bus.

that's correct. Only the top most and bottom most bits are fixed
at zero (both 8MB ranges are not routeable).

> I think we could also get away with allocating less than 8MB to an
> individual PCI bus by programming the CCIO registers to not forward all
> that space to the parent GSC bus.  But none of this has been necessay so
> far, and I hope we don't manage to concoct a situation where it might be.

"Doctor, when I stand like this, my neck hurts."
"Don't do that."

:^)

grant


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] strange GNU ld / libgcc_s.so problems
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Xref: news.gmane.org gmane.linux.ports.parisc:20383

I'm trying to compile KDE and during one step the following command is exec=
uted:

/usr/lib/gcc-lib/hppa-linux/3.3.2/collect2 --verbose --eh-frame-hdr -dynami=
c-linker /lib/ld.so.1 -o .libs/meinproc /usr/lib/gcc-lib/hppa-linux/3.3.2/.=
=2E/../../crt1.o /usr/lib/gcc-lib/hppa-linux/3.3.2/../../../crti.o /usr/lib=
/gcc-lib/hppa-linux/3.3.2/crtbegin.o -L/usr/X11R6/lib -L/opt/kde/qt/lib -L/=
opt/kde/lib -L/usr/lib -L/usr/lib/gcc-lib/hppa-linux/3.3.2 -L/usr/lib/gcc-l=
ib/hppa-linux/3.3.2/../../.. meinproc.o xslt_pure.o /usr/lib/libgcc_s.so.1 =
=2E/.libs/libkbzipfilter_dummy.a /home/cvs/xc/c3000-debian/kdelibs/kio/.lib=
s/libkio.so /home/cvs/xc/c3000-debian/kdelibs/kdeui/.libs/libkdeui.so /home=
/cvs/xc/c3000-debian/kdelibs/kdesu/.libs/libkdesu.so /home/cvs/xc/c3000-deb=
ian/kdelibs/kdecore/.libs/libkdecore.so /home/cvs/xc/c3000-debian/kdelibs/d=
cop/.libs/libDCOP.so -lresolv /usr/lib/libart_lgpl_2.so /home/cvs/xc/c3000-=
debian/kdelibs/kdefx/.libs/libkdefx.so /opt/qt-copy/lib/libqt-mt.so /usr/li=
b/libXft.so /usr/lib/libfreetype.so -lfontconfig -ldl -lpng -lXext -lSM -lI=
CE /usr/lib/libXrender.so -lX11 -lutil  -lbz2 /usr/lib/libxslt.so /usr/lib/=
libxml2.so /usr/lib/libgcc_s.so.1 -lz -lpthread --rpath /opt/kde/lib --rpat=
h /opt/qt-copy/lib --rpath /opt/kde/qt/lib --rpath /usr/X11R6/lib --rpath /=
usr/lib -lstdc++ -lm -lgcc_s -lgcc -lgcc -lc -lgcc_s -lgcc /usr/lib/gcc-lib=
/hppa-linux/3.3.2/crtend.o /usr/lib/gcc-lib/hppa-linux/3.3.2/../../../crtn.o

Below is the output and I don't understand the part which I marked with "##=
####".
Why does collect2 suddenly tries to resolve libstdc++.so while it searched =
for=20
libgcc_s.so ? All other libraries (e.g.-lutil) behave IMHO normal.
Any ideas ? This seems to me like a bug in gcc 3.3.2, but I'm no expert her=
e.

Thanks,
Helge

GNU ld version 2.14.90.0.7 20031029 Debian GNU/Linux
  Supported emulations:
   hppalinux
   hppa64linux
using internal linker script:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
/* Script for -z combreloc: combine and sort reloc sections */
OUTPUT_FORMAT("elf32-hppa-linux", "elf32-hppa-linux",
	      "elf32-hppa-linux")
OUTPUT_ARCH(hppa:hppa1.1)
ENTRY(_start)
SEARCH_DIR("/usr/hppa-linux/lib"); SEARCH_DIR("/usr/lib"); SEARCH_DIR("/usr=
/local/lib"); SEARCH_DIR("/lib");
/* Do we need any of these for elf?
   __DYNAMIC =3D 0;    */
SECTIONS
{
  /* Read-only sections, merged into text segment: */
  PROVIDE (__executable_start =3D 0x10000); . =3D 0x10000 + SIZEOF_HEADERS;
  .interp         : { *(.interp) }
  .hash           : { *(.hash) }
  .dynsym         : { *(.dynsym) }
  .dynstr         : { *(.dynstr) }
  .gnu.version    : { *(.gnu.version) }
  .gnu.version_d  : { *(.gnu.version_d) }
  .gnu.version_r  : { *(.gnu.version_r) }
  .rel.dyn        :
    {
      *(.rel.init)
      *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*)
      *(.rel.fini)
      *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*)
      *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*)
      *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*)
      *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*)
      *(.rel.ctors)
      *(.rel.dtors)
      *(.rel.got)
      *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*)
      *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*)
      *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*)
      *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*)
      *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*)
    }
  .rela.dyn       :
    {
      *(.rela.init)
      *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
      *(.rela.fini)
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
attempt to open /usr/lib/gcc-lib/hppa-linux/3.3.2/../../../crt1.o succeeded
/usr/lib/gcc-lib/hppa-linux/3.3.2/../../../crt1.o
attempt to open /usr/lib/gcc-lib/hppa-linux/3.3.2/../../../crti.o succeeded
/usr/lib/gcc-lib/hppa-linux/3.3.2/../../../crti.o
attempt to open /usr/lib/gcc-lib/hppa-linux/3.3.2/crtbegin.o succeeded
/usr/lib/gcc-lib/hppa-linux/3.3.2/crtbegin.o
attempt to open meinproc.o succeeded
meinproc.o
attempt to open xslt_pure.o succeeded
xslt_pure.o
attempt to open /usr/lib/libgcc_s.so.1 succeeded
/usr/lib/libgcc_s.so.1
attempt to open ./.libs/libkbzipfilter_dummy.a succeeded
(./.libs/libkbzipfilter_dummy.a)kbzip2filter.o
attempt to open /home/cvs/xc/c3000-debian/kdelibs/kio/.libs/libkio.so succe=
eded
/home/cvs/xc/c3000-debian/kdelibs/kio/.libs/libkio.so
attempt to open /home/cvs/xc/c3000-debian/kdelibs/kdeui/.libs/libkdeui.so s=
ucceeded
/home/cvs/xc/c3000-debian/kdelibs/kdeui/.libs/libkdeui.so
attempt to open /home/cvs/xc/c3000-debian/kdelibs/kdesu/.libs/libkdesu.so s=
ucceeded
/home/cvs/xc/c3000-debian/kdelibs/kdesu/.libs/libkdesu.so
attempt to open /home/cvs/xc/c3000-debian/kdelibs/kdecore/.libs/libkdecore.=
so succeeded
/home/cvs/xc/c3000-debian/kdelibs/kdecore/.libs/libkdecore.so
attempt to open /home/cvs/xc/c3000-debian/kdelibs/dcop/.libs/libDCOP.so suc=
ceeded
/home/cvs/xc/c3000-debian/kdelibs/dcop/.libs/libDCOP.so
attempt to open /usr/X11R6/lib/libresolv.so failed
attempt to open /usr/X11R6/lib/libresolv.a failed
attempt to open /opt/kde/qt/lib/libresolv.so failed
attempt to open /opt/kde/qt/lib/libresolv.a failed
attempt to open /opt/kde/lib/libresolv.so failed
attempt to open /opt/kde/lib/libresolv.a failed
attempt to open /usr/lib/libresolv.so succeeded
=2Dlresolv (/usr/lib/libresolv.so)
attempt to open /usr/lib/libart_lgpl_2.so succeeded
/usr/lib/libart_lgpl_2.so
attempt to open /home/cvs/xc/c3000-debian/kdelibs/kdefx/.libs/libkdefx.so s=
ucceeded
/home/cvs/xc/c3000-debian/kdelibs/kdefx/.libs/libkdefx.so
attempt to open /opt/qt-copy/lib/libqt-mt.so succeeded
/opt/qt-copy/lib/libqt-mt.so
attempt to open /usr/lib/libXft.so succeeded
/usr/lib/libXft.so
attempt to open /usr/lib/libfreetype.so succeeded
/usr/lib/libfreetype.so
attempt to open /usr/X11R6/lib/libfontconfig.so failed
attempt to open /usr/X11R6/lib/libfontconfig.a failed
attempt to open /opt/kde/qt/lib/libfontconfig.so failed
attempt to open /opt/kde/qt/lib/libfontconfig.a failed
attempt to open /opt/kde/lib/libfontconfig.so failed
attempt to open /opt/kde/lib/libfontconfig.a failed
attempt to open /usr/lib/libfontconfig.so succeeded
=2Dlfontconfig (/usr/lib/libfontconfig.so)
attempt to open /usr/X11R6/lib/libdl.so failed
attempt to open /usr/X11R6/lib/libdl.a failed
attempt to open /opt/kde/qt/lib/libdl.so failed
attempt to open /opt/kde/qt/lib/libdl.a failed
attempt to open /opt/kde/lib/libdl.so failed
attempt to open /opt/kde/lib/libdl.a failed
attempt to open /usr/lib/libdl.so succeeded
=2Dldl (/usr/lib/libdl.so)
attempt to open /usr/X11R6/lib/libpng.so failed
attempt to open /usr/X11R6/lib/libpng.a failed
attempt to open /opt/kde/qt/lib/libpng.so failed
attempt to open /opt/kde/qt/lib/libpng.a failed
attempt to open /opt/kde/lib/libpng.so failed
attempt to open /opt/kde/lib/libpng.a failed
attempt to open /usr/lib/libpng.so succeeded
=2Dlpng (/usr/lib/libpng.so)
attempt to open /usr/X11R6/lib/libXext.so succeeded
=2DlXext (/usr/X11R6/lib/libXext.so)
attempt to open /usr/X11R6/lib/libSM.so succeeded
=2DlSM (/usr/X11R6/lib/libSM.so)
attempt to open /usr/X11R6/lib/libICE.so succeeded
=2DlICE (/usr/X11R6/lib/libICE.so)
attempt to open /usr/lib/libXrender.so succeeded
/usr/lib/libXrender.so
attempt to open /usr/X11R6/lib/libX11.so succeeded
=2DlX11 (/usr/X11R6/lib/libX11.so)
attempt to open /usr/X11R6/lib/libutil.so failed
attempt to open /usr/X11R6/lib/libutil.a failed
attempt to open /opt/kde/qt/lib/libutil.so failed
attempt to open /opt/kde/qt/lib/libutil.a failed
attempt to open /opt/kde/lib/libutil.so failed
attempt to open /opt/kde/lib/libutil.a failed
attempt to open /usr/lib/libutil.so succeeded
=2Dlutil (/usr/lib/libutil.so)
attempt to open /usr/X11R6/lib/libbz2.so failed
attempt to open /usr/X11R6/lib/libbz2.a failed
attempt to open /opt/kde/qt/lib/libbz2.so failed
attempt to open /opt/kde/qt/lib/libbz2.a failed
attempt to open /opt/kde/lib/libbz2.so failed
attempt to open /opt/kde/lib/libbz2.a failed
attempt to open /usr/lib/libbz2.so succeeded
=2Dlbz2 (/usr/lib/libbz2.so)
attempt to open /usr/lib/libxslt.so succeeded
/usr/lib/libxslt.so
attempt to open /usr/lib/libxml2.so succeeded
/usr/lib/libxml2.so
attempt to open /usr/lib/libgcc_s.so.1 succeeded
/usr/lib/libgcc_s.so.1
attempt to open /usr/X11R6/lib/libz.so failed
attempt to open /usr/X11R6/lib/libz.a failed
attempt to open /opt/kde/qt/lib/libz.so failed
attempt to open /opt/kde/qt/lib/libz.a failed
attempt to open /opt/kde/lib/libz.so failed
attempt to open /opt/kde/lib/libz.a failed
attempt to open /usr/lib/libz.so succeeded
=2Dlz (/usr/lib/libz.so)
attempt to open /usr/X11R6/lib/libpthread.so failed
attempt to open /usr/X11R6/lib/libpthread.a failed
attempt to open /opt/kde/qt/lib/libpthread.so failed
attempt to open /opt/kde/qt/lib/libpthread.a failed
attempt to open /opt/kde/lib/libpthread.so failed
attempt to open /opt/kde/lib/libpthread.a failed
attempt to open /usr/lib/libpthread.so succeeded
opened script file /usr/lib/libpthread.so
opened script file /usr/lib/libpthread.so
attempt to open /lib/libpthread.so.0 succeeded
/lib/libpthread.so.0
attempt to open /usr/lib/libpthread_nonshared.a succeeded
attempt to open /usr/X11R6/lib/libstdc++.so failed
attempt to open /usr/X11R6/lib/libstdc++.a failed
attempt to open /opt/kde/qt/lib/libstdc++.so failed
attempt to open /opt/kde/qt/lib/libstdc++.a failed
attempt to open /opt/kde/lib/libstdc++.so failed
attempt to open /opt/kde/lib/libstdc++.a failed
attempt to open /usr/lib/libstdc++.so succeeded
=2Dlstdc++ (/usr/lib/libstdc++.so)
attempt to open /usr/X11R6/lib/libm.so failed
attempt to open /usr/X11R6/lib/libm.a failed
attempt to open /opt/kde/qt/lib/libm.so failed
attempt to open /opt/kde/qt/lib/libm.a failed
attempt to open /opt/kde/lib/libm.so failed
attempt to open /opt/kde/lib/libm.a failed
attempt to open /usr/lib/libm.so succeeded
=2Dlm (/usr/lib/libm.so)
attempt to open /usr/X11R6/lib/libgcc_s.so failed
attempt to open /usr/X11R6/lib/libgcc_s.a failed
attempt to open /opt/kde/qt/lib/libgcc_s.so failed
attempt to open /opt/kde/qt/lib/libgcc_s.a failed
attempt to open /opt/kde/lib/libgcc_s.so failed
attempt to open /opt/kde/lib/libgcc_s.a failed
attempt to open /usr/lib/libgcc_s.so succeeded
=2Dlgcc_s (/usr/lib/libgcc_s.so)
attempt to open /usr/X11R6/lib/libgcc.so failed
attempt to open /usr/X11R6/lib/libgcc.a failed
attempt to open /opt/kde/qt/lib/libgcc.so failed
attempt to open /opt/kde/qt/lib/libgcc.a failed
attempt to open /opt/kde/lib/libgcc.so failed
attempt to open /opt/kde/lib/libgcc.a failed
attempt to open /usr/lib/libgcc.so failed
attempt to open /usr/lib/libgcc.a failed
attempt to open /usr/lib/gcc-lib/hppa-linux/3.3.2/libgcc.so failed
attempt to open /usr/lib/gcc-lib/hppa-linux/3.3.2/libgcc.a succeeded
(/usr/lib/gcc-lib/hppa-linux/3.3.2/libgcc.a)_divU.oS
(/usr/lib/gcc-lib/hppa-linux/3.3.2/libgcc.a)_div_const.oS
(/usr/lib/gcc-lib/hppa-linux/3.3.2/libgcc.a)_dyncall.oS
(/usr/lib/gcc-lib/hppa-linux/3.3.2/libgcc.a)fptr.oS
attempt to open /usr/X11R6/lib/libgcc.so failed
attempt to open /usr/X11R6/lib/libgcc.a failed
attempt to open /opt/kde/qt/lib/libgcc.so failed
attempt to open /opt/kde/qt/lib/libgcc.a failed
attempt to open /opt/kde/lib/libgcc.so failed
attempt to open /opt/kde/lib/libgcc.a failed
attempt to open /usr/lib/libgcc.so failed
attempt to open /usr/lib/libgcc.a failed
attempt to open /usr/lib/gcc-lib/hppa-linux/3.3.2/libgcc.so failed
attempt to open /usr/lib/gcc-lib/hppa-linux/3.3.2/libgcc.a succeeded
attempt to open /usr/X11R6/lib/libc.so failed
attempt to open /usr/X11R6/lib/libc.a failed
attempt to open /opt/kde/qt/lib/libc.so failed
attempt to open /opt/kde/qt/lib/libc.a failed
attempt to open /opt/kde/lib/libc.so failed
attempt to open /opt/kde/lib/libc.a failed
attempt to open /usr/lib/libc.so succeeded
opened script file /usr/lib/libc.so
opened script file /usr/lib/libc.so
attempt to open /lib/libc.so.6 succeeded
/lib/libc.so.6
attempt to open /usr/lib/libc_nonshared.a succeeded
(/usr/lib/libc_nonshared.a)elf-init.oS
attempt to open /usr/X11R6/lib/libgcc_s.so failed
attempt to open /usr/X11R6/lib/libgcc_s.a failed
attempt to open /opt/kde/qt/lib/libgcc_s.so failed
attempt to open /opt/kde/qt/lib/libgcc_s.a failed
attempt to open /opt/kde/lib/libgcc_s.so failed
attempt to open /opt/kde/lib/libgcc_s.a failed
attempt to open /usr/lib/libgcc_s.so succeeded
=2Dlgcc_s (//usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Res=
ume@GCC_3.0'
/usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Register@GCC_3.=
0'
/usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_RaiseException@=
GCC_3.0'
/usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Unregister@GCC_=
3.0'
/usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Resume_or_Rethr=
ow@GCC_3.3'
usr/lib/libgcc_s.so)

##### ^^^ Why does /usr/lib/libstdc++.so comes into the game here ?
##### The double "//" seems suspect too, since it continues with "usr/lib/l=
ibgcc_s.so"=20
##### in the last line without the trailing "/". It seems this "string" was=
 broken up
##### right in the middle....

attempt to open /usr/X11R6/lib/libgcc.so failed
attempt to open /usr/X11R6/lib/libgcc.a failed
attempt to open /opt/kde/qt/lib/libgcc.so failed
attempt to open /opt/kde/qt/lib/libgcc.a failed
attempt to open /opt/kde/lib/libgcc.so failed
attempt to open /opt/kde/lib/libgcc.a failed
attempt to open /usr/lib/libgcc.so failed
attempt to open /usr/lib/libgcc.a failed
attempt to open /usr/lib/gcc-lib/hppa-linux/3.3.2/libgcc.so failed
attempt to open /usr/lib/gcc-lib/hppa-linux/3.3.2/libgcc.a succeeded
attempt to open /usr/lib/gcc-lib/hppa-linux/3.3.2/crtend.o succeeded
/usr/lib/gcc-lib/hppa-linux/3.3.2/crtend.o
attempt to open /usr/lib/gcc-lib/hppa-linux/3.3.2/../../../crtn.o succeeded
/usr/lib/gcc-lib/hppa-linux/3.3.2/../../../crtn.o
libfam.so.0 needed by /home/cvs/xc/c3000-debian/kdelibs/kio/.libs/libkio.so
found libfam.so.0 at /usr/lib/libfam.so.0
libexpat.so.1 needed by /usr/lib/libfontconfig.so
found libexpat.so.1 at /usr/lib/libexpat.so.1
ld.so.1 needed by /usr/lib/libdl.so
found ld.so.1 at /lib/ld.so.1
collect2: ld returned 1 exit status


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--BDACD_B7.F9_AA.A.DF._5
Content-Type: text/html;
Content-Transfer-Encoding: quoted-printable

<html>Be.. beautiful you know you want to!! voerxtlk utnvd
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#000000" text=3D"#000000" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF00FF" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#FFFFFF" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FFFFFF" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FFFFFF" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>
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</body>
</html>
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--BDACD_B7.F9_AA.A.DF._5--



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Subject: Re: [parisc-linux] strange GNU ld / libgcc_s.so problems
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On Sun, Dec 14, 2003 at 12:11:07PM +0100, Helge Deller wrote:
> Below is the output and I don't understand the part which I marked with "######".
> Why does collect2 suddenly tries to resolve libstdc++.so while it searched for 
> libgcc_s.so ? All other libraries (e.g.-lutil) behave IMHO normal.
> Any ideas ? This seems to me like a bug in gcc 3.3.2, but I'm no expert here.
> 
... SNIP ...

> attempt to open /usr/X11R6/lib/libgcc_s.so failed
> attempt to open /usr/X11R6/lib/libgcc_s.a failed
> attempt to open /opt/kde/qt/lib/libgcc_s.so failed
> attempt to open /opt/kde/qt/lib/libgcc_s.a failed
> attempt to open /opt/kde/lib/libgcc_s.so failed
> attempt to open /opt/kde/lib/libgcc_s.a failed
> attempt to open /usr/lib/libgcc_s.so succeeded
> -lgcc_s (//usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Resume@GCC_3.0'
> /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Register@GCC_3.0'
> /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_RaiseException@GCC_3.0'
> /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Unregister@GCC_3.0'
> /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Resume_or_Rethrow@GCC_3.3'
> usr/lib/libgcc_s.so)
> 
> ##### ^^^ Why does /usr/lib/libstdc++.so comes into the game here ?
> ##### The double "//" seems suspect too, since it continues with "usr/lib/libgcc_s.so" 
> ##### in the last line without the trailing "/". It seems this "string" was broken up
> ##### right in the middle....

Where did that file come from? Is this a debian box?
You should have:

/usr/lib/gcc-lib/hppa-linux/<gcc-version>/libgcc_s.so
pointing to /lib/libgcc_s.so

I suggest you try building this in a clean unstable chroot :)

c.



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> > -lgcc_s (//usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Resume@GCC_3.0'
> > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Register@GCC_3.0'
> > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_RaiseException@GCC_3.0'
> > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Unregister@GCC_3.0'
> > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Resume_or_Rethrow@GCC_3.3'
> > usr/lib/libgcc_s.so)

Debian builds GCC using sjlj exceptions.  This can happen if you use
GCC built using dwarf2 exception support (the default).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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<html>Celebrities to hot to handle!! ss
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#000000" text=3D"#000000" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF00FF" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#FFFFFF" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FFFFFF" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FFFFFF" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>
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</body>
</html>
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--9AC2D.0F9_D._B2F2--



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Content-Type: text/html;
Content-Transfer-Encoding: quoted-printable

<html>,,Did you know JFK was doing it? vo hdaqqmmtou
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#000000" text=3D"#000000" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF00FF" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#FFFFFF" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FFFFFF" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FFFFFF" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>
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</body>
</html>
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--8AC24_1.F_EE..D2.
Content-Type: text/html;
Content-Transfer-Encoding: quoted-printable

<html>Why don't some people ever age? h
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<center><h3><font color=3D"#FF00FF" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
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se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
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en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
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</center><center><h3><font color=3D"#FFFFFF" face=3D"verdana">HGH is the g=
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--8AC24_1.F_EE..D2.--



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--A_._544A4_8A_BF
Content-Type: text/html;
Content-Transfer-Encoding: quoted-printable

<html>Did .you know JFK was doing it? mbq
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#000000" text=3D"#000000" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF00FF" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#FFFFFF" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FFFFFF" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FFFFFF" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>
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</body>
</html>
ouovojmposetfszzed
 bozb  b

--A_._544A4_8A_BF--



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On Monday 15 December 2003 00:12, John David Anglin wrote:
> > > -lgcc_s (//usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Resume@GCC_3.0'
> > > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Register@GCC_3.0'
> > > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_RaiseException@GCC_3.0'
> > > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Unregister@GCC_3.0'
> > > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Resume_or_Rethrow@GCC_3.3'
> > > usr/lib/libgcc_s.so)
> 
> Debian builds GCC using sjlj exceptions.  This can happen if you use
> GCC built using dwarf2 exception support (the default).

Hi Dave,

I'm only using debian's official binaries thru "apt-get update" - including gcc/g++:

c3000:/var/cache/apt/archives# dpkg -l | grep gcc
ii  gcc            3.3.1-2        The GNU C compiler.
pi  gcc-3.2-base   3.2.3-8        The GNU Compiler Collection (base package)
ii  gcc-3.3        3.3.2-4        The GNU C compiler
ii  gcc-3.3-base   3.3.2-4        The GNU Compiler Collection (base package)
ii  gcc-hppa64     3.0-0pre010427 Cross gcc for hppa64
ii  libgcc1        3.3.2-4        GCC support library


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On Sunday 14 December 2003 23:16, Carlos O'Donell wrote:
> On Sun, Dec 14, 2003 at 12:11:07PM +0100, Helge Deller wrote:
> > Below is the output and I don't understand the part which I marked with "######".
> > Why does collect2 suddenly tries to resolve libstdc++.so while it searched for 
> > libgcc_s.so ? All other libraries (e.g.-lutil) behave IMHO normal.
> > Any ideas ? This seems to me like a bug in gcc 3.3.2, but I'm no expert here.
> > 
> ... SNIP ...
> 
> > attempt to open /usr/X11R6/lib/libgcc_s.so failed
> > attempt to open /usr/X11R6/lib/libgcc_s.a failed
> > attempt to open /opt/kde/qt/lib/libgcc_s.so failed
> > attempt to open /opt/kde/qt/lib/libgcc_s.a failed
> > attempt to open /opt/kde/lib/libgcc_s.so failed
> > attempt to open /opt/kde/lib/libgcc_s.a failed
> > attempt to open /usr/lib/libgcc_s.so succeeded
> > -lgcc_s (//usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Resume@GCC_3.0'
> > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Register@GCC_3.0'
> > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_RaiseException@GCC_3.0'
> > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Unregister@GCC_3.0'
> > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Resume_or_Rethrow@GCC_3.3'
> > usr/lib/libgcc_s.so)
> > 
> > ##### ^^^ Why does /usr/lib/libstdc++.so comes into the game here ?
> > ##### The double "//" seems suspect too, since it continues with "usr/lib/libgcc_s.so" 
> > ##### in the last line without the trailing "/". It seems this "string" was broken up
> > ##### right in the middle....
> 
> Where did that file come from? Is this a debian box?
> You should have:
> 
> /usr/lib/gcc-lib/hppa-linux/<gcc-version>/libgcc_s.so
> pointing to /lib/libgcc_s.so

Yes - Debian box and correct symlink.

> I suggest you try building this in a clean unstable chroot :)

:-)

Thanks,
Helge


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> > > attempt to open /usr/lib/libgcc_s.so succeeded
> > > -lgcc_s (//usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Resume@GCC_3.0'
> > > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Register@GCC_3.0'
> > > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_RaiseException@GCC_3.0'
> > > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Unregister@GCC_3.0'
> > > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Resume_or_Rethrow@GCC_3.3'
> > > usr/lib/libgcc_s.so)
> > > 

I don't have libgcc_s.so in /usr/lib.  This is suspect.  libgcc_s.so should
contain the above symbols if built with sjlj exceptions.  However, it's
difficult to tell since the symbols are stripped.  I would move
/usr/lib/libstdc++.so out of the way and retry your link.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Monday 15 December 2003 22:05, John David Anglin wrote:
> > > > attempt to open /usr/lib/libgcc_s.so succeeded
> > > > -lgcc_s (//usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Resume@GCC_3.0'
> > > > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Register@GCC_3.0'
> > > > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_RaiseException@GCC_3.0'
> > > > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Unregister@GCC_3.0'
> > > > /usr/lib/libstdc++.so: undefined reference to `_Unwind_SjLj_Resume_or_Rethrow@GCC_3.3'
> > > > usr/lib/libgcc_s.so)
> > > > 
> 
> I don't have libgcc_s.so in /usr/lib.  This is suspect.  libgcc_s.so should
> contain the above symbols if built with sjlj exceptions.  

doh -that's it !

My /usr/lib/libgcc_so.1 was from an old private gcc build (I forgot about it since
it was from 2002) and it broke my builds.
I deleted this file and now all works perfect.

Thanks a lot.
Helge


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Subject: [parisc-linux] dlopen failed on 'libthread_db.so.1' -
	/lib/libthread_db.so.1: undefined symbol: ps_pglobal_lookup
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I hacked together of a build of debian gdb-6.0-2 this afternoon.  When
I start gdb, I see the following error:

dave@gsyprf11:~/gdb-6.0-2/objdir$ gdb/gdb


dlopen failed on 'libthread_db.so.1' - /lib/libthread_db.so.1: undefined symbol: ps_pglobal_lookup
GDB will not be able to debug pthreads.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] Question about cache flushing and fork
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Hi,

Can someone please explain why it is necessary to flush the cache 
during fork()? (i.e. call to flush_cache_mm() in dup_mmap)

It seems that after fork, the parent and child have access to the same
vm, so it should be sufficient to flush the tlb, and create two pte's
for the processes. I can see that during COW processing there can be
kernel/user cache aliasing issues on virtually indexed caches, but
that seems to be taken care of by copy_cow_page(). 

I've read through cachetlb.txt, but it just says:

        This interface is used to handle whole address space
        page table operations such as what happens during
        fork, exit, and exec.

I can see why this is needed for exit(), but why fork()? and i don't see
this used for exec() ?

Also is there an updated version of the "Linux Cache Flush Architecture"
document? (http://en.tldp.org/LDP/khg/HyperNews/get/memory/flush.html)
This is a very nicely written doc, but it seems a bit out of date for
2.6 (e.g. flush_page_to_ram is gone)

thanks
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] Re: Question about cache flushing and fork
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On Mon, 15 Dec 2003 20:40:33 -0800
Randolph Chung <randolph@tausq.org> wrote:

> Can someone please explain why it is necessary to flush the cache 
> during fork()? (i.e. call to flush_cache_mm() in dup_mmap)

Writable pages that will be shared between the child and
parent are marked read-only and COW, some cpu caches store
protection information in the cache lines in order to avoid
TLB lookups etc. so the caches must be flushed since the
page protection information is changing.


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From: Linus Torvalds <torvalds@osdl.org>
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On Mon, 15 Dec 2003, Randolph Chung wrote:
>
> Can someone please explain why it is necessary to flush the cache
> during fork()? (i.e. call to flush_cache_mm() in dup_mmap)

I don't know if it is strictly necessary - we might well be able to just
do the right thing in the page fault COW handler. But doing the cache
flush at fork time just means that we should never have a page that is
marked read-only but that may have dirty data in the virtual caches. That
could easily get confusing. In fact, I wouldn't be totally surprised if
some architecture refused to do write-backs through a read-only mapping.

But quite frankly, I suspect that since only a few CPU's have virtually
indexed caches, the cache-flush code hasn't gotten that much testing, and
there may be somewhat of an overkill approach there. As you found out,
it's not _that_ well documented.

		Linus


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> Hi,
> 
> Can someone please explain why it is necessary to flush the cache 
> during fork()? (i.e. call to flush_cache_mm() in dup_mmap)

I have a different cache question.  GCC uses a stack trampoline
to call nested functions.  This trampoline is on the stack and
has to be flushed before being used.  A few weeks ago a trampoline
testcase was added.  This testcase failed under hppa64-hpux.  It
turned out that the code assumed that the PA 2.0 cache line was
32 bytes (it was apparently derived from the original PA 1.1 code).

According to my understanding, all PA 2.0 machines use a 64 byte
cache line.  On the otherhand, the PA 2.0 documentation states that
a cache line on a PA 2.0 machine can be 16, 32 or 64 bytes if I
remember correctly.

After I changed the cache line to 64 bytes, the GCC testcase passed
under hpux 11.11 on the A500 that I have.  However, I noticed
recently that it still fails on a C200 running 11.00.  It dies
with an illegal insn (it's a mfia) about the 5th time through
one of the trampolines that the code creates.  The mfia insn is
the entry to the trampoline and it's 16 bytes from the start of
the trampoline data.  If I copy the C200 binary to the A500, it
executes without error.  So, there appears to be a subtle hardware
or OS dependence involved.

I believe that code follows the stated rules for self-modifying code.
The code looks fine when examined with gdb.

Anybody have have any ideas what might be going on?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] Re: Question about cache flushing and fork
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On Mon, Dec 15, 2003 at 08:48:35PM -0800, David S. Miller wrote:
> On Mon, 15 Dec 2003 20:40:33 -0800
> Randolph Chung <randolph@tausq.org> wrote:
> > Can someone please explain why it is necessary to flush the cache 
> > during fork()? (i.e. call to flush_cache_mm() in dup_mmap)
> Writable pages that will be shared between the child and
> parent are marked read-only and COW, some cpu caches store
> protection information in the cache lines in order to avoid
> TLB lookups etc. so the caches must be flushed since the
> page protection information is changing.

On PARISC, the cache line contains the following elements:
	1) data (obviously)
	2) physical page
	3) dirty/clean/public/private/etc state

A cache access hits or misses depending on whether or not the physical page from
the TLB matches the physical page stored in the cache line.

If flushing is required during fork on PARISC, then there are cache consistency
issues elsewhere, something is horribly broken in the design (and it should be
falling all over anyway).

lamont


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On Tue, Dec 16, 2003 at 12:06:57AM -0500, John David Anglin wrote:
> According to my understanding, all PA 2.0 machines use a 64 byte
> cache line.  On the otherhand, the PA 2.0 documentation states that
> a cache line on a PA 2.0 machine can be 16, 32 or 64 bytes if I
> remember correctly.

Correct.  I believe that PDC_CACHE returns the actual size (among other
things.)

> After I changed the cache line to 64 bytes, the GCC testcase passed
> under hpux 11.11 on the A500 that I have.  However, I noticed
> recently that it still fails on a C200 running 11.00.  It dies
> with an illegal insn (it's a mfia) about the 5th time through
> one of the trampolines that the code creates.  The mfia insn is
> the entry to the trampoline and it's 16 bytes from the start of
> the trampoline data.  If I copy the C200 binary to the A500, it
> executes without error.  So, there appears to be a subtle hardware
> or OS dependence involved.

If the C200 is genuinely a PA2.0 machine, then that's, umm, interesting,
since the arch document doesn't say that it's hversion dependent...  The 
instruction is undefined(*) on PA1.1 - you must bl .+8,<register>, which
will get you the address of .+8 (regardless of where you branch.)

lamont

(*) undefined is defined as resulting in any CPU state, with the sole
requirement that there is some defined set of instructions, operating at
the same privilege level that results in the same CPU state.


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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.6.0-test11-pa6: 2d nic tulip pb
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Hi all,

I recompile 2.6.0-test11-pa6 in 32bit with gcc-3.3 (lastest unstable debian
available today) and the .config from 'make defconfig'.

It boot fine on b180 and b2k but on this last one there is an additonal nic
of tulip model:
# lspci
00:0c.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43
(rev 41)
00:0d.0 Multimedia audio controller: Analog Devices AD1889 sound chip
00:0e.0 IDE interface: National Semiconductor Corporation 87415/87560 IDE
(rev 03)
00:0e.1 Bridge: National Semiconductor Corporation 87560 Legacy I/O (rev
01)
00:0e.2 USB Controller: National Semiconductor Corporation USB Controller
(rev 02)
00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53c895a (rev 01)
01:00.0 3D controller: Hewlett-Packard Company Visualize FXe (rev 03)
01:01.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27)
01:02.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43
(rev 41)
01:03.0 SCSI storage controller: LSI Logic / Symbios Logic 53c875 (rev 26)
01:04.0 Network controller: Eicon Technology Corporation EiconCard P92

but failled to configure (it was well when runing 2.4)
# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:30:D3:01:5A:3B  
          inet addr:172.16.248.45  Bcast:172.16.248.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:185 errors:1 dropped:0 overruns:0 frame:0
          TX packets:74 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:15144 (14.7 KiB)  TX bytes:9785 (9.5 KiB)
          Interrupt:66 Base address:0xf00 

eth1      Link encap:Ethernet  HWaddr 00:30:6E:06:23:D0  
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:130 Base address:0x2100 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:68 errors:0 dropped:0 overruns:0 frame:0
          TX packets:68 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:4720 (4.6 KiB)  TX bytes:4720 (4.6 KiB)

Any idea?

Thanks,
    Joel

PS: Just in case here is my /etc/network/interfaces
# The loopback interface
auto lo
iface lo inet loopback

# The first network card - this entry was created during the Debian installation
# (network, broadcast and gateway are optional)
#auto eth0 eth1
auto eth0
iface eth0 inet static
        address 172.16.248.45
        netmask 255.255.255.0
        network 172.16.248.0
        broadcast 172.16.248.255
        gateway 172.16.248.240

iface eth1 inet static
        address 172.16.250.47
        netmask 255.255.255.0
        network 172.16.250.0
        broadcast 172.16.250.255




-------------------------------------------------------------------------
Tiscali ADSL: 12 mois  29,50 /mois! L'Internet rapide, c'est pour tout
le monde.
http://reg.tiscali.be/default.asp?lg=fr




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Subject: Re: [parisc-linux] 2.6.0-test11-pa6: 2d nic tulip pb
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On Tue, Dec 16, 2003 at 06:17:02PM +0100, Joel Soete wrote:
> Hi all,
> 
> I recompile 2.6.0-test11-pa6 in 32bit with gcc-3.3 (lastest unstable debian
> available today) and the .config from 'make defconfig'.

Could we see the dmesg too?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Subject: Re: [parisc-linux] Question about cache flushing and fork
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> On Tue, Dec 16, 2003 at 12:06:57AM -0500, John David Anglin wrote:
> > According to my understanding, all PA 2.0 machines use a 64 byte
> > cache line.  On the otherhand, the PA 2.0 documentation states that
> > a cache line on a PA 2.0 machine can be 16, 32 or 64 bytes if I
> > remember correctly.
> 
> Correct.  I believe that PDC_CACHE returns the actual size (among other
> things.)

Is it possible to do PDC calls from user space under hpux to determine
cache parameters?

> If the C200 is genuinely a PA2.0 machine, then that's, umm, interesting,
> since the arch document doesn't say that it's hversion dependent...  The 
> instruction is undefined(*) on PA1.1 - you must bl .+8,<register>, which
> will get you the address of .+8 (regardless of where you branch.)

I revised GCC's trampoline code to assume a line length of 32 instead
of 64 on hppa64.  It can now flush arbitrarily long regions of memory.
The test now passes.  This seems to imply that the cache length of a
C200 under hpux11.00 is 32 bytes.

Thanks,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Re:

> Is it possible to do PDC calls from user space under hpux to determine
> cache parameters?

Not that I know of.  I have a driver that lets me do it.  PDC calls
generally run with virtual address translation turned off.

Wait ... I forgot ...  yes, sort of.  
/dev/diag/diag2 allows you to do (some) PDC calls.  
Unfortunately, it's not documented :(
 
-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com


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On Tue, Dec 16, 2003 at 05:51:38PM -0500, John David Anglin wrote:
> > On Tue, Dec 16, 2003 at 12:06:57AM -0500, John David Anglin wrote:
> Is it possible to do PDC calls from user space under hpux to determine
> cache parameters?

The architecture requires that pdc calls be done at ring 0, with PSW.D=0,
so no.  Having said that, many of the interesting return values are
available from the kernel, either through sysconf or (sigh) /dev/kmem.

> I revised GCC's trampoline code to assume a line length of 32 instead
> of 64 on hppa64.  It can now flush arbitrarily long regions of memory.
> The test now passes.  This seems to imply that the cache length of a
> C200 under hpux11.00 is 32 bytes.

Cache line size is fixed on every CPU that I've seen, so OS shouldn't
matter...  One can assume a 16-byte cache line and it will work everywhere,
of course, although at 1/2 or 1/4 speed in many cases.  AFAIK, all PA1.1
machines use at least a 32 byte cache-line.

lamont


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> I have a different cache question.  GCC uses a stack trampoline
> to call nested functions.  This trampoline is on the stack and
> has to be flushed before being used.  A few weeks ago a trampoline
> testcase was added.  This testcase failed under hppa64-hpux.  It
> turned out that the code assumed that the PA 2.0 cache line was
> 32 bytes (it was apparently derived from the original PA 1.1 code).

Could you elaborate on the context for this?  It was my understanding
that to flush an area for execution, you simply loop over the area
striding by the cache line width, issuing fdc; fic. (at least, that's
how we do it in the kernel).

If we think the cache line is *smaller* than it actually is, all this
does is issue more flushes than necessary to the cache lines, I don't
understand how it results in an observable failure.

James




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> If we think the cache line is *smaller* than it actually is, all this
> does is issue more flushes than necessary to the cache lines, I don't
> understand how it results in an observable failure.

In the particular case at hand, I noticed that calls to nested functions
were broken on hppa64-hpux11.11.  Nested calls in GCC are done with a stack
trampoline.  The 64-bit trampoline was in fact 72 bytes long.  GCC
was using a line length of 32.  Because the trampoline has 16 byte alignment,
it was possible to hit an alignment situation were the stack code didn't
get flushed.

I changed the length to 64 on hppa64 to fix this problem.  I based this
on the following code in include/parisc/cache.h:

/*
 * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
 * 32-byte cachelines.  The default configuration is not for SMP anyway,
 * so if you're building for SMP, you should select the appropriate
 * processor type.  There is a potential livelock danger when running
 * a machine with this value set too small, but it's more probable you'll
 * just ruin performance.
 */
#ifdef CONFIG_PA20
#define L1_CACHE_BYTES 64
#else
#define L1_CACHE_BYTES 32
#endif

After I made the GCC change, I noticed the trampoline-1.c test failed
on a C200 but not on the A500 that I did the original fix on.  It appears
the C200 has line length of 32 bytes.  As the C200 contains a PA 2.0
processor, the above comment would appear incorrect.  Probably, trying
to run a kernel built with CONFIG_PA20 defined on a C200 would fail
because the line length specified above is *larger* than the actual
line length.  On the otherhand, PDC_CACHE allows setting some cache
parameters.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Hi,

> The architecture requires that pdc calls be done at ring 0, with PSW.D=0,
> so no.  Having said that, many of the interesting return values are
> available from the kernel, either through sysconf or (sigh) /dev/kmem.

HP-UX's /dev/diag/diag2 definitely seems to return cache information.

However, it's going to be up to HP to reveal the calling sequence and
semantics / cautions.
 
-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com


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On Tue, Dec 16, 2003 at 07:57:16PM -0500, John David Anglin wrote:
> > If we think the cache line is *smaller* than it actually is, all this
> > does is issue more flushes than necessary to the cache lines, I don't
> > understand how it results in an observable failure.
> In the particular case at hand, I noticed that calls to nested functions
> were broken on hppa64-hpux11.11.  Nested calls in GCC are done with a stack
> trampoline.  The 64-bit trampoline was in fact 72 bytes long.  GCC
> was using a line length of 32.  Because the trampoline has 16 byte alignment,
> it was possible to hit an alignment situation were the stack code didn't
> get flushed.

OK.  Note also that the sp is supposed to always be 64-byte aligned...

> After I made the GCC change, I noticed the trampoline-1.c test failed
> on a C200 but not on the A500 that I did the original fix on.  It appears
> the C200 has line length of 32 bytes.  As the C200 contains a PA 2.0
> processor, the above comment would appear incorrect.  Probably, trying
> to run a kernel built with CONFIG_PA20 defined on a C200 would fail
> because the line length specified above is *larger* than the actual
> line length.

I expect you are correct here - again, no hard knowledge of that processor
on my part.

Assuming a 32-byte cache line on a 64-byte-cache-line machine should not
cause any issues (other than performance issues, that is..)

lamont


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> OK.  Note also that the sp is supposed to always be 64-byte aligned...

That's not correct for 64 bits.  See page 15 of the "64-Bit Runtime
Architecture for PA-RISIC 2.0, Version 3.3".  The alignment specified
is 16 bytes.  This is also the case for the HP compilers that I have.
Thus, you can't assume that a stack frame starts at the beginning of
a cacheline in the 64-bit runtime.

Regarding the frame marker, there is a discrepancy between the size
of the frame marker mentioned in this document and that which HP
compilers generate (16 versus 48 bytes).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Acts review name presented review current be of website includes Over which
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Subject: Re: [parisc-linux] 2.6.0-test11-pa6: 2d nic tulip pb
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Oops my bad:
 just comment out #auto eth0 eth1 and all works fine :)

appologies,
    Joel

>-- Original Message --
>Date: Tue, 16 Dec 2003 18:08:03 +0000
>From: Matthew Wilcox <willy@debian.org>
>To: Joel Soete <soete.joel@tiscali.be>
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] 2.6.0-test11-pa6: 2d nic tulip pb
>
>
>On Tue, Dec 16, 2003 at 06:17:02PM +0100, Joel Soete wrote:
> Hi all,
> 
> I recompile 2.6.0-test11-pa6 in 32bit with gcc-3.3 (lastest unstable debian
> available today) and the .config from 'make defconfig'.

Could we see the dmesg too?

-- 

>Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thu
> he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: [parisc-linux] Re: dlopen failed on 'libthread_db.so.1' -
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On Mon, Dec 15, 2003 at 05:05:12PM -0500, John David Anglin wrote:
> I hacked together of a build of debian gdb-6.0-2 this afternoon.  When
> I start gdb, I see the following error:

My friend, that's amazing!
 
> dave@gsyprf11:~/gdb-6.0-2/objdir$ gdb/gdb
> dlopen failed on 'libthread_db.so.1' - /lib/libthread_db.so.1: undefined symbol: ps_pglobal_lookup
> GDB will not be able to debug pthreads.

Every pogram that links libthread_db.so.1 must provide a set of process
control primities that will allow libthread_db to access memory and
registers in the target process, start and stop the process, and lookup
symbols. ps_pglobal_lookup is always UND in libthread_db, and gdb should
have exported an arch version for the library to use :)

c.


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On Wed, Dec 17, 2003 at 10:32:20AM -0500, Carlos O'Donell wrote:
> Every pogram that links libthread_db.so.1 must provide a set of process
> control primities that will allow libthread_db to access memory and
> registers in the target process, start and stop the process, and lookup
> symbols. ps_pglobal_lookup is always UND in libthread_db, and gdb should
> have exported an arch version for the library to use :)

See:

gdb/proc-service.c
gdb/gdbserver/proc-service.c

*unless* You are insinuating that the loader has messed up the symbol
resolution and ps_pglobal_lookup exists but isn't resolved properly...
which is a whole 'nother can of wormns :)

c.



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> See:
> 
> gdb/proc-service.c
> gdb/gdbserver/proc-service.c
> 
> *unless* You are insinuating that the loader has messed up the symbol
> resolution and ps_pglobal_lookup exists but isn't resolved properly...
> which is a whole 'nother can of wormns :)

I'll take a look.  Based on what you have said, it's likely the gdb-6.0
isn't being linked correctly on hppa-linux.  Debian gdb-6.0-2 doesn't
build as is, and I had to make some minor mod's to the patch set and hack 
a config file to include linux-nat.o in the required files.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Xref: news.gmane.org gmane.linux.ports.parisc:20417

On Wed, Dec 17, 2003 at 11:43:48AM -0500, John David Anglin wrote:
> > See:
> > 
> > gdb/proc-service.c
> > gdb/gdbserver/proc-service.c
> > 
> > *unless* You are insinuating that the loader has messed up the symbol
> > resolution and ps_pglobal_lookup exists but isn't resolved properly...
> > which is a whole 'nother can of wormns :)
> 
> I'll take a look.  Based on what you have said, it's likely the gdb-6.0
> isn't being linked correctly on hppa-linux.  Debian gdb-6.0-2 doesn't
> build as is, and I had to make some minor mod's to the patch set and hack 
> a config file to include linux-nat.o in the required files.

AFAIK there was major work required. I shy'd away completely as glibc
was taking up all my time and seemed like a better place to start :)

Current todo:

- Giving up on fixing dlopen from static app, too tough for me right
  now.
- Atomic ups are up next, with possibly a review of time functions,
  monotonicity and a fast gettimeofday.

c.


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From: Herbert Poetzl <herbert@13thfloor.at>
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Subject: [parisc-linux] syscall number for vserver
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Hi everyone!

I would like to 'officially' reserve a syscall number
for parisc(64)/vserver ... 

this has been done for i386, x86_64, sparc(64) and s390, 
but not for parisc/parisc64 yet, could you please point
me in the right direction?

x86_64      236     [Andi Kleen]
s390        263     [Martin Schwidefsky]
sparc       267     [David S.Miller]
sparc64     267     [David S.Miller]
i386        273     [Rik/Linus/Andrew]

TIA,
Herbert

PS: see http://linux-vserver.org/ for more details ...




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Subject: Re: [parisc-linux] Re: dlopen failed on 'libthread_db.so.1' -
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> On Wed, Dec 17, 2003 at 11:43:48AM -0500, John David Anglin wrote:
> > > See:
> > > 
> > > gdb/proc-service.c
> > > gdb/gdbserver/proc-service.c
> > > 
> > > *unless* You are insinuating that the loader has messed up the symbol
> > > resolution and ps_pglobal_lookup exists but isn't resolved properly...
> > > which is a whole 'nother can of wormns :)
> > 
> > I'll take a look.  Based on what you have said, it's likely the gdb-6.0
> > isn't being linked correctly on hppa-linux.  Debian gdb-6.0-2 doesn't
> > build as is, and I had to make some minor mod's to the patch set and hack 
> > a config file to include linux-nat.o in the required files.

dave@gsyprf11:~/gdb-6.0-2/objdir/gdb$ nm gdb|grep ps_pglobal_lookup
000dc904 T ps_pglobal_lookup

Looks as if there is a problem with dlopen.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> dave@gsyprf11:~/gdb-6.0-2/objdir/gdb$ nm gdb|grep ps_pglobal_lookup
> 000dc904 T ps_pglobal_lookup
> 
> Looks as if there is a problem with dlopen.

No, the problem is ps_pglobal_lookup isn't in gdb's dynamic symbol
table.  I'll have to figure out how this is done.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] Re: dlopen failed on 'libthread_db.so.1' -g
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> No, the problem is ps_pglobal_lookup isn't in gdb's dynamic symbol
> table.  I'll have to figure out how this is done.

Adding --export-dynamic to the gdb link command resolves the problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: "Victim of Microsale" <UWE-SCHMIDT-@GMX.NET>
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Subject: [parisc-linux] Mr. Uwe Schmidt is a knave! Don't buy any product
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Dear friends,

Microsale SC KG, Ltd, Germany is a knave company and Uwe Schmidt is a big knave!

We are cheated by Microsale SC KG, Ltd.

Remember, don't do any business with this company.

Don't buy any product from Microsale or you will be cheated.

This company has a bad reputation in Germany and in other European countries, espcially in 
Belgium and Netherlands.

Here's the story:

Mr. Uwe Schmidt , CEO
Microsale (R) SC KG

He is also an auditor, but he doesn't have any commercial morality.

He always made cheated L/C to other companies. Many companies have been cheated by him.

Please take care!!!

His products have many problems, such as CD player and mp3 player!

It's the detailed information of this company:
Dahlienweg 6
D 52477 Alsdorf, NRW
Germany, European Union

Tel.-/Fax-Box: +49 89 1488230796
               +32 87 783518
               +32 87 783019
Mobil: +32 474 409055
Email: microsale@email.de 
       microsale@gmx.net
       uwe-schmidt-@gmx.net
Web: http://www.microsale.biz
     http://members.ebay.de/aboutme/microsale_schmidt


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Dear friends,

Microsale SC KG, Ltd, Germany is a knave company and Uwe Schmidt is a big knave!

We are cheated by Microsale SC KG, Ltd.

Remember, don't do any business with this company.

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Here's the story:

Mr. Uwe Schmidt , CEO
Microsale (R) SC KG

He is also an auditor, but he doesn't have any commercial morality.

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Please take care!!!

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It's the detailed information of this company:
Dahlienweg 6
D 52477 Alsdorf, NRW
Germany, European Union

Tel.-/Fax-Box: +49 89 1488230796
               +32 87 783518
               +32 87 783019
Mobil: +32 474 409055
Email: microsale@email.de 
       microsale@gmx.net
       uwe-schmidt-@gmx.net
Web: http://www.microsale.biz
     http://members.ebay.de/aboutme/microsale_schmidt


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On Wed, Dec 17, 2003 at 11:16:18PM +0100, Herbert Poetzl wrote:
> 
> Hi everyone!
> 
> I would like to 'officially' reserve a syscall number
> for parisc(64)/vserver ... 

The syscall is the typical multiplexer crap, so an actual submission
wouldn't have any chance.  Please fix up your junk beofe trying to
play the reserve a syscall scheme.  This didn't work for afs or
LSM either.



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From - Thu Nov 08 21:30:23 2018
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From: Herbert Poetzl <herbert@13thfloor.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [Vserver] Re: [parisc-linux] syscall number for vserver
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On Thu, Dec 18, 2003 at 08:25:06AM +0100, Christoph Hellwig wrote:
> On Wed, Dec 17, 2003 at 11:16:18PM +0100, Herbert Poetzl wrote:
> > 
> > Hi everyone!
> > 
> > I would like to 'officially' reserve a syscall number
> > for parisc(64)/vserver ... 
> 
> The syscall is the typical multiplexer crap, so an actual submission
> wouldn't have any chance.  Please fix up your junk beofe trying to
> play the reserve a syscall scheme.  This didn't work for afs or
> LSM either.

hohoho!

you are a funny guy, and I'm sure you will
explain your statement in all detail ...

just for your information:

vserver folks really do not care whether or not the
syscall is reserved on their architecture, as long 
as it's there, and it will be there anyway, I just 
wanted to be polite and correct, so if you 'think'
we split up the switch just for parisc(64) again, 
then I can assure you, that just won't happen ...

best,
Herbert

PS:

if you are actually interrested _how_ this is done
and _what_ we do to minimize issues, have a look at

 http://vserver.13thfloor.at/Stuff/vswitch.h
 http://vserver.13thfloor.at/Stuff/vswitch.c

some facts:

- the project started with 2 syscalls, and has grown
  to 7-8 syscalls (depending on the version)

- the syscall switch was not my idea, but I have to
  admit, that it simplified development drastically
  (no need to ask 10 people for a new syscall ;)

- we _are_ supporting several different architectures
  and we _are_ trying to avoid issues where possible,
  (for example we use the c99 types for structs)
  
- userspace handles this with a versioned interface


On Sun, Aug 31, 2003 at 10:57:42AM -0400, Rik van Riel wrote:
> How about a sys_vserver multiplexer so we can easily add
> things like setting a new ipv6 root to the interface,
> without needing yet another syscall ?

On Sat, Oct 04, 2003 at 03:31:11PM -0700, David S. Miller wrote:
>>> This interface stinks, system calls should have fixed known types not
>>> depending upon the value of some parameter, anything else is a
>>> disaster waiting to happen ala ioctl().

>> but I have to say, that I see no advantage in
>> using more syscalls, if they have to pass a user
>> space struct anyway ... (not all do)

> Then have a fixed enumeration for the command, and pass in
> as the type argument a union of the various possible structures.
> Then the types are clearly defined and it's much easier to write
> the compat translation layer.

On Sat, Oct 04, 2003 at 04:57:58PM -0700, David S. Miller wrote:
>>> We have like 7 or 8 system calls for posix timers,
>>> so I don't see why we can't have 3 or 4 for vserver
>>> so that we can have a well defined type get passed in
>>> for each specific system call.

>> that was my saying in the first place, please  
>> advise how to proceed on that?
>> (am I running in circles?)

> Ok, I already sent off an email to Linus so that I can have
> a discussion with him about this first.  I'll reply again once
> he replies to me and we discuss things.



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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [Vserver] Re: [parisc-linux] syscall number for vserver
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On Thu, Dec 18, 2003 at 04:01:29PM +0100, Herbert Poetzl wrote:
> vserver folks really do not care whether or not the
> syscall is reserved on their architecture, as long 
> as it's there, and it will be there anyway, I just 
> wanted to be polite and correct, so if you 'think'
> we split up the switch just for parisc(64) again, 
> then I can assure you, that just won't happen ...

FYI, Christoph does not control syscall allocations on PA-RISC; I do.
I don't yet have a firm opinion on whether we should allocate this
syscall.  I see both sides of this argument, but personally, I believe
sys_vserver is a mistake.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


From - Thu Nov 08 21:30:23 2018
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From: Herbert Poetzl <herbert@13thfloor.at>
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Subject: Re: [Vserver] Re: [parisc-linux] syscall number for vserver
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On Thu, Dec 18, 2003 at 04:04:50PM +0000, Matthew Wilcox wrote:
> On Thu, Dec 18, 2003 at 04:01:29PM +0100, Herbert Poetzl wrote:
> > vserver folks really do not care whether or not the
> > syscall is reserved on their architecture, as long 
> > as it's there, and it will be there anyway, I just 
> > wanted to be polite and correct, so if you 'think'
> > we split up the switch just for parisc(64) again, 
> > then I can assure you, that just won't happen ...
> 
> FYI, Christoph does not control syscall allocations on PA-RISC; I do.
> I don't yet have a firm opinion on whether we should allocate this
> syscall.  I see both sides of this argument, but personally, I believe
> sys_vserver is a mistake.

thanks for the information, (I almost assumed that,
at least according to 2.6/MAINTAINERS)

maybe you _can_ suggest a _doable_ solution for 
vserver, if so please go ahead, I'm listening ...

personally, I believe that the whole syscall number
allocation per architecture is broken by design, a 
better solution would be to have only one table for
all architectures, automatically blocking ni_syscalls
with strong typed arguments (bitsize), and a simple
way to either version or enable/disable those syscalls

after spending some thoughts on the 'a multiplexer is
a bad thing' argument, I came to the conclusion that,
if well designed, it's probably better than having a
different syscall with differing arguments on every
architecture, especially if the functionality is
completely agnostic regarding architecture ...

best,
Herbert

> -- 
> "Next the statesmen will invent cheap lies, putting the blame upon 
> the nation that is attacked, and every man will be glad of those
> conscience-soothing falsities, and will diligently study them, and refuse
> to examine any refutations of them; and thus he will by and by convince 
> himself that the war is just, and will thank God for the better sleep 
> he enjoys after this process of grotesque self-deception." -- Mark Twain
> _______________________________________________
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> Vserver@list.linux-vserver.org
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Subject: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 willy
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2.6.0-pa0 boot fine on my b2k :)

Thanks Matthew,
    Joel

PS: build with make defconfig (ie 32bit with gcc 3.3.2-4)

>-- Original Message --
>To: parisc-linux-cvs@lists.parisc-linux.org
>Date: Thu, 18 Dec 2003 07:30:16 -0700 (MST)
>From: willy@parisc-linux.org (Matthew Wilcox)
>Reply-To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux-cvs] linux-2.6 willy
>
>
>CVSROOT:	/var/cvs
Module name:	linux-2.6
Changes by:	willy	03/12/18 07:30:16

Modified files:
	kernel         : Makefile 

Log message:
I may not be tall enough for signals, but I am tall enough for Makefiles!

_______________________________
>_______________
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On Thu, Dec 18, 2003 at 05:28:09PM +0100, Herbert Poetzl wrote:
> personally, I believe that the whole syscall number
> allocation per architecture is broken by design,

No it's definitely not.
Binary compatibility with other OS's is an arch specific problem.

In our case, any chance of support for HPUX would
require reserving HPUX syscall numbers and provide
appropriate wrappers in the kernel to support it.

And I don't see why the value of a syscall matters.
Just use the right header files and it should work on any arch.

grant


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From: Herbert Poetzl <herbert@13thfloor.at>
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On Thu, Dec 18, 2003 at 12:55:35PM -0700, Grant Grundler wrote:
> On Thu, Dec 18, 2003 at 05:28:09PM +0100, Herbert Poetzl wrote:
> > personally, I believe that the whole syscall number
> > allocation per architecture is broken by design,
> 
> No it's definitely not.

since you removed it from the original context ...

I agree from a technical point of view, but not from 
the developer's perspective (who just want's a syscall 
for whatever arch independant use ...)

> Binary compatibility with other OS's is an arch specific problem.

for sure it is, but I don't see a relation there ...

> In our case, any chance of support for HPUX would
> require reserving HPUX syscall numbers and provide
> appropriate wrappers in the kernel to support it.

so where is the problem, having an additional offset/info
in the macro defining the syscall can handle that, why
has it to be a different numbering for 'linux' syscalls?

> And I don't see why the value of a syscall matters.

it doesn't matter, and it doesn't matter to me ...

> Just use the right header files and it should work on any arch.

right, but getting one syscall for every arch, seems
like a jigsaw puzzle, as the original thread shows ...

best,
Herbert

> grant
> _______________________________________________
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Hi!

what is the best way to compile a 2.4.23-pa3
kernel for a HP 9000/800/A400-44?

cpu family	: PA-RISC 2.0
cpu		: PA8500 (PCX-W)
cpu MHz		: 440.000000
model		: 9000/800/A400-44
model name	: Crescendo DC- 440

TIA,
Herbert



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On Fri, Dec 19, 2003 at 02:00:35AM +0100, Herbert Poetzl wrote:
...
> I agree from a technical point of view, but not from 
> the developer's perspective (who just want's a syscall 
> for whatever arch independant use ...)

sorry - an "arch independent syscall" sounds like an oxymoron to me.

> > Binary compatibility with other OS's is an arch specific problem.
> 
> for sure it is, but I don't see a relation there ...

ok

> > In our case, any chance of support for HPUX would
> > require reserving HPUX syscall numbers and provide
> > appropriate wrappers in the kernel to support it.
> 
> so where is the problem, having an additional offset/info
> in the macro defining the syscall can handle that, why
> has it to be a different numbering for 'linux' syscalls?

Linux kernel doesn't need of implement any given syscall the same
way for each arch.
gettimeofday/settimeofday are popular ones to re-implement
in glibc with alternative kernel support. performance sensitive
"syscalls" are subject to a high level of customization
given the resources and interest.

> > Just use the right header files and it should work on any arch.
> 
> right, but getting one syscall for every arch, seems
> like a jigsaw puzzle, as the original thread shows ...

ah yes. Open source is self correcting in that regard.
When someone decides it's important to have vserver syscall
implemented on parisc, they can demonstrate it works and
show it's useful.  If it's really arch independent, then
implementing it should be as easy as picking some random
unused __NR_xxx to test with and enabling the kernel config
options, right?

BTW, I visited http://www.linux-vserver.org/ and didn't feel
I understood why it's more useful than say, user mode linux
(another form of virtualization) or vPARs. But I'm no
security expert, just an IO/driver hacker.

grant


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On Fri, Dec 19, 2003 at 02:13:16AM +0100, Herbert Poetzl wrote:
> Hi!
> 
> what is the best way to compile a 2.4.23-pa3
> kernel for a HP 9000/800/A400-44?

I'll assume you've already installed debian.

You'll need to grab the gcc-hppa64 compiler from:	
   ftp://ftp.parisc-linux.org/unofficial-debs/gcc-hppa64_3.0.4ds3-7.1_hppa.deb

Then follow directions on http://www.parisc-linux.org/kernel/index.html

If you a "custom-for-a500" config file, you can grab a 2.4.x kernel+config
file from ftp.parisc-linux.org/kernel/a500 to start with.

grant


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On Thu, Dec 18, 2003 at 07:13:33PM -0700, Grant Grundler wrote:
> On Fri, Dec 19, 2003 at 02:13:16AM +0100, Herbert Poetzl wrote:
> > Hi!
> > 
> > what is the best way to compile a 2.4.23-pa3
> > kernel for a HP 9000/800/A400-44?
> 
> I'll assume you've already installed debian.

right ...

> You'll need to grab the gcc-hppa64 compiler from:	
>    ftp://ftp.parisc-linux.org/unofficial-debs/gcc-hppa64_3.0.4ds3-7.1_hppa.deb

hmm, is there a source available somewhere ...
(I don't like binary only packages)

> Then follow directions on http://www.parisc-linux.org/kernel/index.html

okay, looks like the usual stuff ...

> If you a "custom-for-a500" config file, you can grab a 2.4.x kernel+config
> file from ftp.parisc-linux.org/kernel/a500 to start with.

found them at ftp://ftp.parisc-linux.org/kernels/a500/

TIA,
Herbert

> grant


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From: Herbert Poetzl <herbert@13thfloor.at>
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Subject: Re: [Vserver] Re: [parisc-linux] syscall number for vserver
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On Thu, Dec 18, 2003 at 07:03:52PM -0700, Grant Grundler wrote:
> On Fri, Dec 19, 2003 at 02:00:35AM +0100, Herbert Poetzl wrote:
> ...
> > I agree from a technical point of view, but not from 
> > the developer's perspective (who just want's a syscall 
> > for whatever arch independant use ...)
> 
> sorry - an "arch independent syscall" sounds like an oxymoron to me.

that's probably why most of the syscalls are
implemented outside of linux/arch/* (about 250)

> > > Binary compatibility with other OS's is an arch specific problem.
> > 
> > for sure it is, but I don't see a relation there ...
> 
> ok
> 
> > > In our case, any chance of support for HPUX would
> > > require reserving HPUX syscall numbers and provide
> > > appropriate wrappers in the kernel to support it.
> > 
> > so where is the problem, having an additional offset/info
> > in the macro defining the syscall can handle that, why
> > has it to be a different numbering for 'linux' syscalls?
> 
> Linux kernel doesn't need of implement any given syscall the same
> way for each arch.

sure not, but gettimeofday for example, will
return the current time, and this usually does
not need an architecture specific interface
(for sure it will require an arch specific
implementation ;)

> gettimeofday/settimeofday are popular ones to re-implement
> in glibc with alternative kernel support. performance sensitive
> "syscalls" are subject to a high level of customization
> given the resources and interest.
> 
> > > Just use the right header files and it should work on any arch.
> > 
> > right, but getting one syscall for every arch, seems
> > like a jigsaw puzzle, as the original thread shows ...
> 
> ah yes. Open source is self correcting in that regard.
> When someone decides it's important to have vserver syscall
> implemented on parisc, they can demonstrate it works and
> show it's useful.  

yes ;)

> If it's really arch independent, then implementing it 
> should be as easy as picking some random unused __NR_xxx 
> to test with and enabling the kernel config options, right?

well, yeah, that is what I did to add the parisc(64)
vserver support, except that it doesn't have
a kernel config option yet ;)

> BTW, I visited http://www.linux-vserver.org/ and didn't feel
> I understood why it's more useful than say, user mode linux
> (another form of virtualization) or vPARs. 

hmm, for UML you'll need a kernel for each vps,
which eats up a lot of resources, where vserver
even allow you to share the files between vps

regarding vPARs, I didn't know that they work
for Linux yet, can you give some hints on that?

> But I'm no security expert, just an IO/driver hacker.

security is just one aspect of this project ...
IO/driver hacking is fun sometimes ...

best,
Herbert

> grant
> _______________________________________________
> Vserver mailing list
> Vserver@list.linux-vserver.org
> http://list.linux-vserver.org/mailman/listinfo/vserver


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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Update palo to autodetect Serial Mux and append
	console=ttyB0
Date: Thu, 18 Dec 2003 21:58:00 -0700
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Hello Paul and parisc-linux hackers,

I got an itch to update palo to auto-detect the serial mux and append
the console=ttyB0 to the kernel commandline like it does for tty0 and
ttyS0.

The following patch impliments this update (scrach one itch).

I have successfully booted 2.6.0-pa0 on C200+ and K460 using both tftp'd
kernels and on-disk kernels.

Feedback and/or testing welcome.

thanks,

- Ryan

P.S. This patch has not been commited to the palo cvs.  Feel free to
commit the patch if you approve it Paul; or let me know what needs to be
updated (version?, changelog entry?, etc) if you want me to commit it.


--=-8S2x6HmuIr+x67NN2l7k
Content-Disposition: attachment; filename=palo.diff
Content-Type: text/x-patch; name=palo.diff; charset=ANSI_X3.4-1968
Content-Transfer-Encoding: 7bit

Index: ipl/bootloader.h
===================================================================
RCS file: /var/cvs/palo/ipl/bootloader.h,v
retrieving revision 1.11
diff -u -p -r1.11 bootloader.h
--- ipl/bootloader.h	7 Jan 2002 23:55:10 -0000	1.11
+++ ipl/bootloader.h	19 Dec 2003 03:39:41 -0000
@@ -29,6 +29,7 @@ void die(const char *);
 void firmware_init(int started_wide);
 void pdc_default_width(int wide);
 int pdc_cons_duplex();
+int pdc_cons_mux(int *is_mux);
 int pdc_iodc_cin(char *buf, int size);
 void pdc_iodc_cout(const char *c, int size);
 int pdc_os_bits();
Index: ipl/ipl.c
===================================================================
RCS file: /var/cvs/palo/ipl/ipl.c,v
retrieving revision 1.32
diff -u -p -r1.32 ipl.c
--- ipl/ipl.c	13 Jan 2003 19:41:24 -0000	1.32
+++ ipl/ipl.c	19 Dec 2003 03:39:41 -0000
@@ -7,9 +7,13 @@
  */
 #include <stddef.h>
 #include "bootloader.h"
+#include <asm/pdc.h>
 #include <asm/byteorder.h>
 #include "load.h"
 
+#undef PAGE0
+#define PAGE0   ((struct zeropage *)0x00000000)
+
 int Debug = 0;
 
 void flush_data_cache(char *start, size_t length)
@@ -320,11 +324,22 @@ iplmain(int is_interactive, char *initia
 	printf("\nInformation: No console specified on kernel command line."
 		" This is normal.\nPALO will choose the console currently"
 		" used by firmware ");
+
         strcat(f.cmdline, " console=");
 	if (pdc_cons_duplex())
 	{
+            int is_mux;
+
 	    printf("(serial).\n");
-	    strcat(f.cmdline, "ttyS0");
+
+            if(pdc_cons_mux(&is_mux) != PDC_OK)
+                printf("Informatin: The PDC calls to query the console device failed. Assuming console=ttyS0\n");
+
+            if(is_mux)
+	        strcat(f.cmdline, "ttyB0");
+            else
+	        strcat(f.cmdline, "ttyS0");
+
 	    if (strstr(f.cmdline, " TERM=") == 0)
 	        strcat(f.cmdline, " TERM=vt102");
 	}
Index: ipl/pdc_misc.c
===================================================================
RCS file: /var/cvs/palo/ipl/pdc_misc.c,v
retrieving revision 1.14
diff -u -p -r1.14 pdc_misc.c
--- ipl/pdc_misc.c	7 Jan 2002 23:55:10 -0000	1.14
+++ ipl/pdc_misc.c	19 Dec 2003 03:39:41 -0000
@@ -20,6 +20,8 @@
 #define PDC_RETURN_DEFAULTS 1
 #define PDC_SET_DEFAULTS 2
 #define PDC_STABLE 10
+#define HPHW_A_DIRECT 5
+#define MUX_SVERSION 0x0d
 
 void die(const char *s)
 {
@@ -221,6 +223,37 @@ int
 pdc_cons_duplex()
 {
     return (PAGE0->mem_cons.cl_class == CL_DUPLEX);
+}
+
+int
+pdc_cons_mux(int *is_mux)
+{
+    int r;
+    unsigned char hw_type;    /* 5  bits used */
+    unsigned int sversion;    /* 20 bits used */
+    unsigned pdc_result2[64] __attribute__ ((aligned (8)));
+
+    *is_mux = 0;
+
+    r = firmware_call(mem_pdc, PDC_IODC, PDC_IODC_READ,
+                pdc_result, PAGE0->mem_cons.hpa,
+		0, pdc_result2, 32);
+                
+    if (r >= 0)
+    {
+        unsigned char iodc_data[32];
+        memcpy(&iodc_data, pdc_result2, 32);
+
+        hw_type = iodc_data[3] & 0x1f;
+        sversion = ((iodc_data[4] & 0x1f) << 16) | (iodc_data[5] << 8) | iodc_data[6];
+
+        if(hw_type == HPHW_A_DIRECT && sversion == MUX_SVERSION)
+            *is_mux = 1;
+
+	return PDC_OK;
+    }
+
+    return r;				/* r < 0; error */
 }
 
 int

--=-8S2x6HmuIr+x67NN2l7k--



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From: Paul Weissmann <paul@doorslam.net>
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Subject: [parisc-linux] Maximum RAM sizes on B1xxL, C1xx/C2xx
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Hello,
	I'm confused on the maximum RAM sizes systems like e.g.
B132L, C110, C200 can faciliate.

The C110 for example has eight SIMM slots, official HP manuals for
this system state that the maximum amount of RAM is 512MB, ie 8x64MB.
Other documents I found on the web state that this machine maxes out
at 2GB, ie 8x256MB.

There are HP 50/60ns EDO ECC SIMMs which would fit these machines in
sizes up to 256MB easily available to buy.

I suspect at the time of printing of the user/tech manuals, certain SIMM
sizes just weren't available.

So, concluding, does anyone here knows if there is a hard, tested
limit of RAM one can put and use in one of the following models:

 o B1xxL (6 slots),
 o C100/C110 (8 slots),
 o C132L/C160L (12 slots),
 o C160/C180 (12 slots),
 o C200/C240/C360 (12 slots).

Or, better, what would speak against populating all available slots
with 256MB SIMMs?

Thanks.

        - paul

-- 
   zwei jaeger treffen sich. beide tot.


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On Fri, 2003-12-19 10:28:14 +0100, Paul Weissmann <paul@doorslam.net>
wrote in message <20031219092814.GA1094@blinder.doorslam.net>:

>  o B1xxL (6 slots),

I'm using a B132L+ with 6 * 128MB =3D 768MB

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
   ret =3D do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TC=
PA));

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Le vendredi, 19 d=E9c 2003, =E0 03:28 Europe/Paris, Herbert Poetzl a =
=E9crit :
>
>> You'll need to grab the gcc-hppa64 compiler from:=09
>>    =20
>> ftp://ftp.parisc-linux.org/unofficial-debs/gcc-hppa64_3.0.4ds3-=20
>> 7.1_hppa.deb
>
> hmm, is there a source available somewhere ...
> (I don't like binary only packages)

If you really want to waste your time in building a cross compiler by =20=

yourself, going through
the various pain of this process, just follow the recipe here:

http://www.fr.parisc-linux.org/toolchain/PARISC-Linux-XC-HOWTO.html

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/

PS: i know what i'm talking about, regarding pain, i'm the guy who made =20=

that "binary only" package :P=



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On Fri, Dec 19, 2003 at 04:24:56AM +0100, Herbert Poetzl wrote:
...
> sure not, but gettimeofday for example, will
> return the current time, and this usually does
> not need an architecture specific interface

glibc

> (for sure it will require an arch specific
> implementation ;)

possible a different syscall.
Sounds like we agree.

...
> > to test with and enabling the kernel config options, right?
> 
> well, yeah, that is what I did to add the parisc(64)
> vserver support, except that it doesn't have
> a kernel config option yet ;)

That should be part of the patch to enable vserver.

> > BTW, I visited http://www.linux-vserver.org/ and didn't feel
> > I understood why it's more useful than say, user mode linux
> > (another form of virtualization) or vPARs. 
> 
> hmm, for UML you'll need a kernel for each vps,
> which eats up a lot of resources, where vserver
> even allow you to share the files between vps

Has anyone bothered to quantify how much resource?
In general, systems are memory starved, so this sounds
like a good thing.

> regarding vPARs, I didn't know that they work
> for Linux yet, can you give some hints on that?

Several arches are capable of running the OS via a "monitor"
that abstracts the HW (even emulating IO devices depending on
the implementation).  Thus allows several OS instances to run
at the same time.  It's not too different from UML except that
the monitor is "lighter weight" than a Linux kernel host and
can run different OSs (ie not just linux) at the same time.

Search for "vPARs" on www.hp.com if you want more details
on HPUX vPARs support.

grant


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On Fri, Dec 19, 2003 at 09:11:34AM -0700, Grant Grundler wrote:
> On Fri, Dec 19, 2003 at 04:24:56AM +0100, Herbert Poetzl wrote:
> ...
> 
> That should be part of the patch to enable vserver.
> 
> > > BTW, I visited http://www.linux-vserver.org/ and didn't feel
> > > I understood why it's more useful than say, user mode linux
> > > (another form of virtualization) or vPARs. 
> > 
> > hmm, for UML you'll need a kernel for each vps,
> > which eats up a lot of resources, where vserver
> > even allow you to share the files between vps
> 
> Has anyone bothered to quantify how much resource?
> In general, systems are memory starved, so this sounds
> like a good thing.

well, just as a small example, a single CPU
2GHz Pentium machine with 1GB RAM works reasonably
well with 30-40 vservers, each one running sshd, 
apache, php, postfix and mysql ...
 
a dual CPU 1.5GHz machine with 2GB RAM can
provide shelter for about 60-80 vservers, with
good responsiveness ...

a test patch for 2.4.23-pa3 can be found at
http://vserver.13thfloor.at/Stuff/patch-2.4.23-pa3-vs1.22.diff
(tools need some tweaking ...)

> > regarding vPARs, I didn't know that they work
> > for Linux yet, can you give some hints on that?
> 
> Search for "vPARs" on www.hp.com if you want more details
> on HPUX vPARs support.

heard of it for HPUX, and it seems that XEN
is somewhat compareable to that, but that didn't
answer my question: are they available for Linux
or 'just' for HPUX?

TIA,
Herbert

> grant


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On Fri, Dec 19, 2003 at 12:17:35PM +0100, Thibaut VARNE wrote:
> 
> Le vendredi, 19 dc 2003,  03:28 Europe/Paris, Herbert Poetzl a crit :
> >
> >>You'll need to grab the gcc-hppa64 compiler from:	
> >>    
> >>ftp://ftp.parisc-linux.org/unofficial-debs/gcc-hppa64_3.0.4ds3- 
> >>7.1_hppa.deb
> >
> >hmm, is there a source available somewhere ...
> >(I don't like binary only packages)
> 
> If you really want to waste your time in building a cross 
> compiler by yourself, going through the various pain of 
> this process, just follow the recipe here:

well, what I had in mind was a debian source
package, which can be 'rebuilt' my myself ...

> http://www.fr.parisc-linux.org/toolchain/PARISC-Linux-XC-HOWTO.html

useful info ... I guess

best,
Herbert

> HTH,
> 
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://www.pateam.org/
> 
> PS: i know what i'm talking about, regarding pain, i'm the guy who made  
> that "binary only" package :P


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Subject: [parisc-linux] Sexy.. leading men share their tips with you guys
	ydfluvv
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--E.1.7C22..8D_.82_1029119
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On Fri, Dec 19, 2003 at 06:03:51PM +0100, Herbert Poetzl wrote:
> heard of it for HPUX, and it seems that XEN
> is somewhat compareable to that, but that didn't
> answer my question: are they available for Linux
> or 'just' for HPUX?

http://www.hp.com/products1/unix/operating/manageability/partitions/virtual_partitions.html

grant


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On Fri, Dec 19, 2003 at 06:51:21PM -0700, Grant Grundler wrote:
> On Fri, Dec 19, 2003 at 06:03:51PM +0100, Herbert Poetzl wrote:
> > heard of it for HPUX, and it seems that XEN
> > is somewhat compareable to that, but that didn't
> > answer my question: are they available for Linux
> > or 'just' for HPUX?
> 
> http://www.hp.com/products1/unix/operating/manageability/partitions/virtual_partitions.html

okay, so just for HPUX 11i and
Superdome, rp8400, rp7410, rp7405, rp7400, rp5470, rp5405.

thanks,
Herbert

> grant


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--=-7BKU+oxglG0KcdtPizLS
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Paul,

My last palo patch had a bug in masking the sversion bits so palo
incorrectly determined the console on the E-35 was not a Mux.  I have
attached an interdiff patch between the new patch and my previous patch.

Thanks,

- Ryan


--=-7BKU+oxglG0KcdtPizLS
Content-Disposition: attachment; filename=palo-interdiff.diff
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Content-Transfer-Encoding: 7bit

diff -u ipl/pdc_misc.c ipl/pdc_misc.c
--- ipl/pdc_misc.c	19 Dec 2003 03:39:41 -0000
+++ ipl/pdc_misc.c	20 Dec 2003 04:49:07 -0000
@@ -231,7 +231,7 @@
     int r;
     unsigned char hw_type;    /* 5  bits used */
     unsigned int sversion;    /* 20 bits used */
-    unsigned pdc_result2[64] __attribute__ ((aligned (8)));
+    unsigned long pdc_result2[32] __attribute__ ((aligned (8)));
 
     *is_mux = 0;
 
@@ -241,11 +241,11 @@
                 
     if (r >= 0)
     {
-        unsigned char iodc_data[32];
-        memcpy(&iodc_data, pdc_result2, 32);
+        unsigned char iodc_data[8];
+        memcpy(&iodc_data, pdc_result2, 8);
 
         hw_type = iodc_data[3] & 0x1f;
-        sversion = ((iodc_data[4] & 0x1f) << 16) | (iodc_data[5] << 8) | iodc_data[6];
+        sversion = ((iodc_data[4] & 0x0f) << 16) | (iodc_data[5] << 8) | iodc_data[6];
 
         if(hw_type == HPHW_A_DIRECT && sversion == MUX_SVERSION)
             *is_mux = 1;

--=-7BKU+oxglG0KcdtPizLS--



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Xref: news.gmane.org gmane.linux.ports.parisc:20450

Hi all,
I noticed linux-2.6:arch/parisc/kernel/firmware.c didn't
have a license (eg GPL) to stipulate terms of distribution.
I'll add a GPL to it in my next patch.

Could someone review drivers/parisc, arch/parisc, and include/asm-parisc
for both copyright and redistribution license?

A first step is to post a list of file missing either item.
If there is a "standard format" for either item, it would be
good to know what it is and whether or not parisc specific
files are "close enough" (or not).

Willy,
I noticed Documentation/SubmittingDrivers makes no mention of copyright.
Perhaps the following should be added after "License:"?

Copyright:      The copyright owner must agree to use of the GPL.
                It's best if the submitter and copyright owner are the
		same person. If not, the entity whichs authorizes the
		use of GPL should list a contact in case it's necessary
		to verify the will of the copyright owner.

thanks,
grant


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] DIFF 2.6.0-pa3 suckyio USB support
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Hi all,
I finally figured out why suckyio USB was broken...lots of little things.
I still can't start X11 but it's likely some other issue (.config
file options likely - I'll post a seperate mail on that)

Diff is at:
	ftp://ftp.parisc-linux.org/patches/diff-2.6.0-suckyio-03

I don't have time to testing this on all variants (a500 and c3k 64-bit).
Please test, comment, and commit if it's looking good. I'll be around
a bit but not really available to commit a final version until after
christmas.

Comments on PCI Config space, diffstat, and comments on the diff follow.

FYA, the final problem was writes to PCI Configuration space.
PCI is by nature a 32-bit bus and byte writes to config space seems
to be broken. I'd like to blame suckyio for this but not sure I can.
It might be broken for all systems with LBA. Or maybe my proto-C3K
(v2.1 Elroys) is just broken. And I just sent my only other production
C3000 to someone who is having a very happy christmas...
Anyway, using 32-bit writes got everything working and seems safer.

grundler <514>diffstat ~/diff-2.6.0-suckyio-03 
 Makefile                         |    2 
 arch/parisc/kernel/firmware.c    |   63 +++++++++-
 arch/parisc/kernel/inventory.c   |   14 --
 drivers/net/tulip/media.c        |   10 +
 drivers/parisc/Kconfig           |    3 
 drivers/parisc/iosapic.c         |  154 ++++++++++++--------------
 drivers/parisc/iosapic_private.h |   20 +--
 drivers/parisc/sba_iommu.c       |   15 ++
 drivers/parisc/superio.c         |  231 +++++++++++++++++++--------------------
 include/asm-parisc/pci.h         |    1 
 include/asm-parisc/pdc.h         |    6 -
 include/asm-parisc/superio.h     |   42 ++++---
 12 files changed, 313 insertions(+), 248 deletions(-)

Here's a summary of changes:
o properly document the fact that SuckyIO uses INTD of the USB device
  to get the interrupt routine for "Legacy IO" devices.
  Restructured the hacks in iosapic_fixup_irq(), superio_fixup_irq() and
  superio_init() to make the initialization sequence a bit more obvious.

o simplify the suckyio serial_init() to use static initializers.
  Registering each port is really only three lines of code now.

o fix iosapic bug where two EIR bits where getting allocated in the
  case where two "devices" used the same iosapic IRQ line.
  Only one was actually used.
  Simple check midway down in iosapic_fixup_irq() takes care of that.

  The two functions of built-in SCSI 53c896 on C3000 exposed this bug.
  Both use INT A.
  Normally a multifuction device like 53c896 will use INT A and INT B.

o remove "vi_" prefix from iosapic vector fields.
  Code is a bit more readable now.
  (sorry - it itched really badly :^)

o moved pdc_io_reset_devices() call to sba code. It's only needed for
  SBA systems which are NOT PAT PDC. Does NOT interfere with serial
  or pdc console.

o added pdc_pci_config() accessor primitives but have not tested them.
  I thought I would need them but don't (yet). Left them in place
  in case someone cares to convert all the cruft in lba_pci.c
  to use PDC calls instead....PAT PDC has a different PDC interface
  but I can deal with that if someone takes care of "legacy PDC"
  systems.

o added gmmio_base field and advertise MMIO resources above 4GB on
  64-bit systems. Not well tested and may want to back this out
  if it even smells like a problem.

o updated comments tulip/media.c and reduce timeout in
  tulip_select_media() to 1ms.

o updated Kconfig help for unsupported CONFIG_PCI_EPIC (V-class only)

o added copyright notice to files I've touched.


enjoy!
grant


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Xref: news.gmane.org gmane.linux.ports.parisc:20452

Hi all,
using the diff I just posted, I still can't fire up X11.
I do get parisc logo on the screen at boot.
fbset -i does indicate 1600x1200x8 and that matches
my XF86Config-4 file contents (nothing changed).

xserver can't open /dev/input/mice and it's not clear to me why not.
I have a USB Logitech "intellimouse" that seems to work fine
with 2.4.23 kernels.  2.6.0-pa3 (pre-release) finds the USB mouse.

I'd be interested in hearing if it works for someone else with
and c3000 or similar workstation.

Appended is XFree86.log file.

thanks,
grant


This is a pre-release version of XFree86, and is not supported in any
way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
please check the latest version in the XFree86 CVS repository
(http://www.XFree86.Org/cvs)

XFree86 Version 4.2.1.1 (Debian 4.2.1-12.1 20031003044442 root@sarti.debian.org) / X Window System
(protocol Version 11, revision 0, vendor release 6600)
Release Date: 18 October 2002
	If the server is older than 6-12 months, or if your card is
	newer than the above date, look for a newer version before
	reporting problems.  (See http://www.XFree86.Org/)
Build Operating System: Linux 2.4.20-64 parisc64 [ELF] 
Markers: (--) probed, (**) from config file, (==) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/XFree86.0.log", Time: Sat Dec 20 21:37:31 2003
(==) Using config file: "/etc/X11/XF86Config-4"
(==) ServerLayout "Default Layout"
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "Generic Monitor"
(**) |   |-->Device "Generic Video Card"
(**) |-->Input Device "Generic Keyboard"
(**) Option "XkbRules" "xfree86"
(**) XKB: rules: "xfree86"
(**) Option "XkbModel" "pc104"
(**) XKB: model: "pc104"
(**) Option "XkbLayout" "us"
(**) XKB: layout: "us"
(==) Keyboard: CustomKeycode disabled
(**) |-->Input Device "USB Mouse"
(WW) The directory "/usr/lib/X11/fonts/cyrillic" does not exist.
	Entry deleted from font path.
(WW) The directory "/usr/lib/X11/fonts/75dpi/" does not exist.
	Entry deleted from font path.
(WW) The directory "/usr/lib/X11/fonts/75dpi" does not exist.
	Entry deleted from font path.
(**) FontPath set to "unix/:7100,/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts/100dpi/:unscaled,/usr/lib/X11/fonts/Type1,/usr/lib/X11/fonts/Speedo,/usr/lib/X11/fonts/100dpi"
(==) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(--) using VT number 2

(WW) Open APM failed (/dev/apm_bios) (No such file or directory)
(II) PCI: PCI scan (all values are in hex)
(II) PCI: 00:0c:0: chip 1011,0019 card 103c,104f rev 41 class 02,00,00 hdr 00
(II) PCI: 00:0d:0: chip 11d4,1889 card 11d4,1889 rev 00 class 04,01,00 hdr 00
(II) PCI: 00:0e:0: chip 100b,0002 card 0000,0000 rev 03 class 01,01,8a hdr 80
(II) PCI: 00:0e:1: chip 100b,000e card 0000,0000 rev 01 class 06,80,00 hdr 80
(II) PCI: 00:0e:2: chip 100b,0012 card 0000,0000 rev 02 class 0c,03,10 hdr 80
(II) PCI: 00:0f:0: chip 1000,000b card 1000,1000 rev 04 class 01,00,00 hdr 80
(II) PCI: 00:0f:1: chip 1000,000b card 1000,1000 rev 04 class 01,00,00 hdr 80
(II) PCI: 01:05:0: chip 10b7,9050 card 0000,0000 rev 00 class 02,00,00 hdr 00
(II) PCI: 01:06:0: chip 8086,1229 card 103c,10cb rev 08 class 02,00,00 hdr 00
(II) PCI: 03:02:0: chip 103c,1005 card 0000,0000 rev 03 class 03,80,00 hdr 00
(II) PCI: End of PCI scan
(II) Host-to-PCI bridge:
(II) Host-to-PCI bridge:
(II) Host-to-PCI bridge:
(II) Bus 0: bridge is at (0:0:0), (-1,0,0), BCTRL: 0x00 (VGA_EN is cleared)
(II) Bus 0 I/O range:
	[0] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 0 non-prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 0 prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 1: bridge is at (0:0:0), (-1,1,0), BCTRL: 0x00 (VGA_EN is cleared)
(II) Bus 1 I/O range:
	[0] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 1 non-prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 1 prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 3: bridge is at (0:0:0), (-1,3,0), BCTRL: 0x00 (VGA_EN is cleared)
(II) Bus 3 I/O range:
	[0] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 3 non-prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 3 prefetchable memory range:
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
(--) PCI:*(3:2:0) HP unknown chipset (0x1005) rev 3, Mem @ 0xfa000000/25, BIOS @ 0xf7000000/16
(II) Addressable bus resource ranges are
	[0] -1 0	0x00000000 - 0xffffffff (0x0) MX[B]
	[1] -1 0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) OS-reported resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) Active PCI resource ranges:
	[0] -1 0	0xf4800000 - 0xf48fffff (0x100000) MX[B]
	[1] -1 0	0xf4900000 - 0xf4900fff (0x1000) MX[B]
	[2] -1 0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[3] -1 0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[4] -1 0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[5] -1 0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[6] -1 0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[7] -1 0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[8] -1 0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[9] -1 0	0xf7000000 - 0xf700ffff (0x10000) MX[B](B)
	[10] -1 0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[11] -1 0	0x00002000 - 0x0000203f (0x40) IX[B]
	[12] -1 0	0x00002100 - 0x0000213f (0x40) IX[B]
	[13] -1 0	0x00000800 - 0x000008ff (0x100) IX[B]
	[14] -1 0	0x00000900 - 0x000009ff (0x100) IX[B]
	[15] -1 0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[16] -1 0	0x00000b00 - 0x00000b00 (0x1) IX[B]
	[17] -1 0	0x00000d00 - 0x00000d00 (0x1) IX[B]
	[18] -1 0	0x00000e00 - 0x00000e00 (0x1) IX[B]
	[19] -1 0	0x00000f00 - 0x00000f00 (0x1) IX[B]
	[20] -1 0	0x00001000 - 0x0000107f (0x80) IX[B]
(II) Active PCI resource ranges after removing overlaps:
	[0] -1 0	0xf4800000 - 0xf48fffff (0x100000) MX[B]
	[1] -1 0	0xf4900000 - 0xf4900fff (0x1000) MX[B]
	[2] -1 0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[3] -1 0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[4] -1 0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[5] -1 0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[6] -1 0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[7] -1 0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[8] -1 0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[9] -1 0	0xf7000000 - 0xf700ffff (0x10000) MX[B](B)
	[10] -1 0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[11] -1 0	0x00002000 - 0x0000203f (0x40) IX[B]
	[12] -1 0	0x00002100 - 0x0000213f (0x40) IX[B]
	[13] -1 0	0x00000800 - 0x000008ff (0x100) IX[B]
	[14] -1 0	0x00000900 - 0x000009ff (0x100) IX[B]
	[15] -1 0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[16] -1 0	0x00000b00 - 0x00000b00 (0x1) IX[B]
	[17] -1 0	0x00000d00 - 0x00000d00 (0x1) IX[B]
	[18] -1 0	0x00000e00 - 0x00000e00 (0x1) IX[B]
	[19] -1 0	0x00000f00 - 0x00000f00 (0x1) IX[B]
	[20] -1 0	0x00001000 - 0x0000107f (0x80) IX[B]
(II) OS-reported resource ranges after removing overlaps with PCI:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) All system resource ranges:
	[0] -1 0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1 0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1 0	0xf4800000 - 0xf48fffff (0x100000) MX[B]
	[3] -1 0	0xf4900000 - 0xf4900fff (0x1000) MX[B]
	[4] -1 0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[5] -1 0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[6] -1 0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[7] -1 0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[8] -1 0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[9] -1 0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[10] -1 0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[11] -1 0	0xf7000000 - 0xf700ffff (0x10000) MX[B](B)
	[12] -1 0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[13] -1 0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[14] -1 0	0x00000000 - 0x00000000 (0x1) IX[B]
	[15] -1 0	0x00002000 - 0x0000203f (0x40) IX[B]
	[16] -1 0	0x00002100 - 0x0000213f (0x40) IX[B]
	[17] -1 0	0x00000800 - 0x000008ff (0x100) IX[B]
	[18] -1 0	0x00000900 - 0x000009ff (0x100) IX[B]
	[19] -1 0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[20] -1 0	0x00000b00 - 0x00000b00 (0x1) IX[B]
	[21] -1 0	0x00000d00 - 0x00000d00 (0x1) IX[B]
	[22] -1 0	0x00000e00 - 0x00000e00 (0x1) IX[B]
	[23] -1 0	0x00000f00 - 0x00000f00 (0x1) IX[B]
	[24] -1 0	0x00001000 - 0x0000107f (0x80) IX[B]
(II) ATI: ATI driver (version 6.4.16) for chipset: ati
(II) R128: Driver for ATI Rage 128 chipsets: ATI Rage 128 RE (PCI),
	ATI Rage 128 RF (AGP), ATI Rage 128 RG (AGP), ATI Rage 128 RK (PCI),
	ATI Rage 128 RL (AGP), ATI Rage 128 SM (AGP),
	ATI Rage 128 Pro PD (PCI), ATI Rage 128 Pro PF (AGP),
	ATI Rage 128 Pro PP (PCI), ATI Rage 128 Pro PR (PCI),
	ATI Rage 128 Pro ULTRA TF (AGP), ATI Rage 128 Pro ULTRA TL (AGP),
	ATI Rage 128 Pro ULTRA TR (AGP), ATI Rage 128 Mobility LE (PCI),
	ATI Rage 128 Mobility LF (AGP), ATI Rage 128 Mobility MF (AGP),
	ATI Rage 128 Mobility ML (AGP)
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
	ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
	ATI Radeon VE QY (AGP), ATI Radeon VE QZ (AGP),
	ATI Radeon Mobility LW (AGP), ATI Radeon Mobility LX (AGP),
	ATI Radeon Mobility LY (AGP), ATI Radeon Mobility LZ (AGP),
	ATI Radeon 8500 QL (AGP), ATI Radeon 8500 QM (AGP),
	ATI Radeon 8500 QN (AGP), ATI Radeon 8500 QO (AGP),
	ATI Radeon 8500 Ql (AGP), ATI Radeon 8500 BB (AGP),
	ATI Radeon 7500 QW (AGP), ATI Radeon 9000 If (AGP)
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
	mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400,
	mgag550
(II) GLINT: driver for 3Dlabs chipsets: gamma, gamma2, ti_pm2, ti_pm, r4,
	pm4, pm3, pm2v, pm2, pm, 300sx, 500tx, mx, delta
(II) NV: driver for NVIDIA chipsets: RIVA 128, RIVA TNT,
	RIVA TNT2/TNT2 Pro, RIVA TNT2 Ultra, Vanta, Riva TNT2 M64,
	Aladdin TNT2, GeForce 256, GeForce DDR, Quadro, GeForce2 MX/MX 400,
	GeForce2 MX 100/200, GeForce2 Go, Quadro2 MXR, GeForce2 GTS/Pro,
	GeForce2 Ti, GeForce2 Ultra, Quadro2 Pro, GeForce4 MX 460,
	GeForce4 MX 440, GeForce4 MX 420, GeForce4 440 Go, GeForce4 420 Go,
	GeForce4 420 Go M32, Quadro4 500XGL, GeForce4 440 Go M64,
	Quadro4 200/400NVS, Quadro4 550XGL, Quadro4 GoGL, 0x0180, 0x0181,
	0x0182, 0x0188, 0x018A, 0x018B, GeForce2 Integrated, 0x01F0,
	GeForce3, GeForce3 Ti 200, GeForce3 Ti 500, Quadro DCC,
	GeForce4 Ti 4600, GeForce4 Ti 4400, GeForce4 Ti 4200,
	Quadro4 900 XGL, Quadro4 750 XGL, Quadro4 700 XGL, 0x0280, 0x0281,
	0x0288, 0x0289
(II) S3: driver (version 0.3.5 for S3 chipset: 964-0, 964-1, 968,
	Trio32/64, Aurora64V+, Trio64V2/DX or /GX
(II) S3VIRGE: driver (version 1.8.3) for S3 ViRGE chipsets: virge, 86C325,
	virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
	86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
	trio 3d/2x, 86C362, 86C368
(II) SIS: driver for SiS chipsets: SIS5597, SIS530, SIS6326, SIS300,
	SIS630, SIS540
(II) SAVAGE: driver (version 1.1.26) for S3 Savage chipsets: Savage4,
	Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
	Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133,
	ProSavage PN133, ProSavage KN133, SuperSavage/MX 128,
	SuperSavage/MX 64, SuperSavage/MX 64C, SuperSavage/IX 128,
	SuperSavage/IX 128, SuperSavage/IX 64, SuperSavage/IX 64,
	SuperSavage/IXC 64, SuperSavage/IXC 64, ProSavage DDR,
	ProSavage DDR-K
(II) TRIDENT: driver for Trident chipsets: tvga9000, tvga9000i, tvga8900c,
	tvga8900d, tvga9200cxr, tgui9400cxi, cyber9320, cyber9388, cyber9397,
	cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4, tgui9420dgi,
	tgui9440agi, tgui9660, tgui9680, providia9682, providia9685,
	cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d, cyberbladei7,
	cyberbladei7d, cyberbladei1, cyberbladei1d, cyberbladeAi1,
	cyberbladeAi1d, cyberbladeXPm/8, cyberbladeXPm/16, cyberbladeXPAi1
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
	ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
	ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
	3dfx Voodoo3, 3dfx Voodoo5
(II) FBDEV: driver for framebuffer: fbdev
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) v4l driver for Video4Linux
(II) Primary Device is: PCI 03:02:0
(II) FBDEV(0): using default device
(II) Running in FRAMEBUFFER Mode
(**) FBDEV(0): Depth 8, (--) framebuffer bpp 8
(**) FBDEV(0): Default visual is TrueColor
(==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDEV(0): Hardware: stifb (vidmem: 2400k)
(II) FBDEV(0): Checking Modes against framebuffer device...
(II) FBDEV(0): 	mode "1600x1200" ok
(II) FBDEV(0): Checking Modes against monitor...
(--) FBDEV(0): Virtual size is 1600x1200 (pitch 1600)
(**) FBDEV(0): Default mode "1600x1200": 162.0 MHz (scaled from 0.0 MHz), 75.0 kHz, 60.0 Hz
(II) FBDEV(0): Modeline "1600x1200"  162.00  1600 1664 1856 2160  1200 1201 1204 1250 +hsync +vsync
(==) FBDEV(0): DPI set to (75, 75)
(**) FBDEV(0): Using "Shadow Framebuffer"
(EE) FBDEV(0): FBIOPAN_DISPLAY: Invalid argument
(==) FBDEV(0): Backing store disabled
(**) Option "dpms"
(**) FBDEV(0): DPMS enabled
(II) Keyboard "Generic Keyboard" handled by legacy driver
(**) Option "Protocol" "ImPS/2"
(**) USB Mouse: Protocol: "ImPS/2"
(**) Option "SendCoreEvents" "true"
(**) USB Mouse: always reports core events
(**) Option "CorePointer"
(**) USB Mouse: Core Pointer
(**) Option "Device" "/dev/input/mice"
(EE) xf86OpenSerial: Cannot open device /dev/input/mice
	No such device.
(EE) USB Mouse: cannot open input device
(EE) PreInit failed for input device "USB Mouse"
(WW) No core pointer registered
No core pointer

Fatal server error:
failed to initialize core devices

When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to submit@bugs.debian.org.



From - Thu Nov 08 21:30:25 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] can't open /dev/input/mice on c3000?
Date: Sun, 21 Dec 2003 14:32:54 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:20453

On Sunday 21 December 2003 06:46, Grant Grundler wrote:
> xserver can't open /dev/input/mice and it's not clear to me why not.
> I have a USB Logitech "intellimouse" that seems to work fine
> with 2.4.23 kernels.  2.6.0-pa3 (pre-release) finds the USB mouse.

Works for me on the c3k without problems (HP (SILITEK) USB Mouse).

I assume you are missing some .config entries:
#
# Input device support
#
CONFIG_INPUT=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input I/O drivers
#
# CONFIG_GAMEPORT is not set
CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
CONFIG_HP_SDC=y
# CONFIG_HIL_MLC is not set
# CONFIG_SERIO_PCIPS2 is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ATKBD is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_HIL_OLD is not set
CONFIG_INPUT_MOUSE=y
# CONFIG_MOUSE_PS2 is not set


From - Thu Nov 08 21:30:25 2018
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] A small sym2 backport
Date: Sun, 21 Dec 2003 14:38:03 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:20454

Hi all,

here is a small patch resulting from my atempt to back port the new sym2 driver:
=========><=========
diff -Naur sym53c8xx_2.Orig/sym53c8xx.h sym53c8xx_2/sym53c8xx.h
--- sym53c8xx_2.Orig/sym53c8xx.h        2003-12-18 09:20:36.000000000 +0100
+++ sym53c8xx_2/sym53c8xx.h     2003-12-18 10:01:37.000000000 +0100
@@ -99,30 +96,27 @@
  /*
   *  Host template defintion
   */
-#if (LINUX_VERSION_CODE >= 0x020400) || defined(HOSTS_C) || defined(MODULE)
-
  #include <scsi/scsicam.h>

  #define SYM53C8XX {                                                    \
-       name:                   "sym53c8xx",                            \
-       detect:                 sym53c8xx_detect,                       \
-       release:                sym53c8xx_release,                      \
-       info:                   sym53c8xx_info,                         \
-       queuecommand:           sym53c8xx_queue_command,                \
-       use_new_eh_code:        1,                                      \
-       eh_abort_handler:       sym53c8xx_eh_abort_handler,             \
-       eh_device_reset_handler:sym53c8xx_eh_device_reset_handler,      \
-       eh_bus_reset_handler:   sym53c8xx_eh_bus_reset_handler,         \
-       eh_host_reset_handler:  sym53c8xx_eh_host_reset_handler,        \
-       bios_param:             scsicam_bios_param,                     \
-       can_queue:              0,                                      \
-       this_id:                7,                                      \
-       sg_tablesize:           0,                                      \
-       cmd_per_lun:            0,                                      \
-       use_clustering:         DISABLE_CLUSTERING,                     \
-       highmem_io:             1}
-
-#endif /* defined(HOSTS_C) || defined(MODULE) */
+       .name                   = "sym53c8xx",                          \
+       .detect                 = sym53c8xx_detect,                     \
+       .release                = sym53c8xx_release,                    \
+       .info                   = sym53c8xx_info,                       \
+       .queuecommand           = sym53c8xx_queue_command,              \
+       .use_new_eh_code        = 1,                                    \
+       .eh_abort_handler       = sym53c8xx_eh_abort_handler,           \
+       .eh_device_reset_handler= sym53c8xx_eh_device_reset_handler,    \
+       .eh_bus_reset_handler   = sym53c8xx_eh_bus_reset_handler,       \
+       .eh_host_reset_handler  = sym53c8xx_eh_host_reset_handler,      \
+       .bios_param             = scsicam_bios_param,                   \
+       .can_queue              = 0,                                    \
+       .this_id                = 7,                                    \
+       .sg_tablesize           = 0,                                    \
+       .cmd_per_lun            = 0,                                    \
+       .use_clustering         = DISABLE_CLUSTERING,                   \
+       .highmem_io             = 1                                     \
+}

  /*
   *  Translate kernel configuration parameters
@@ -292,27 +286,26 @@
   *
   *  Can be overriden at startup by a command line.
   */
-#define SYM_LINUX_DRIVER_SETUP                 \
-{                                              \
-       1,      /* pci_parity */                \
-       1,      /* scsi_parity */               \
-       CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS,     \
-       CONFIG_SCSI_SYM53C8XX_DEFAULT_SYNC,     \
-       7,      /* burst_order */               \
-       1,      /* scsi_led */                  \
-       1,      /* max_wide */                  \
-       1,      /* scsi_diff */                 \
-       0,      /* irq_mode */                  \
-       1,      /* scsi_bus_check */            \
-       7,      /* host_id */                   \
-       62,     /* max_offs */                  \
-       CONFIG_SCSI_SYM53C8XX_MAX_LUN,          \
-       3,      /* pci_fix_up */                \
-       0,      /* reverse_probe */             \
-       0,      /* verbose */                   \
-       0,      /* debug */                     \
-       3,      /* settle_delay */              \
-       1,      /* use_nvram */                 \
+#define SYM_LINUX_DRIVER_SETUP {                                       \
+       .pci_parity     = 1,                                    \
+       .scsi_parity    = 1,                                    \
+       .max_tag        = CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS,   \
+       .min_sync       = CONFIG_SCSI_SYM53C8XX_DEFAULT_SYNC,   \
+       .burst_order    = 7,                                    \
+       .scsi_led       = 1,                                    \
+       .max_wide       = 1,                                    \
+       .scsi_diff      = 1,                                    \
+       .irq_mode       = 0,                                    \
+       .scsi_bus_check = 1,                                    \
+       .host_id        = 7,                                    \
+       .max_offs       = 62,                                   \
+       .max_lun        = CONFIG_SCSI_SYM53C8XX_MAX_LUN,        \
+       .pci_fix_up     = 3,                                    \
+       .reverse_probe  = 0,                                    \
+       .verbose        = 0,                                    \
+       .debug          = 0,                                    \
+       .settle_delay   = 3,                                    \
+       .use_nvram      = 1,                                    \
  }

  /*
@@ -321,27 +314,26 @@
   *  Override initial setup from boot command line:
   *    sym53c8xx=safe:y
   */
-#define SYM_LINUX_DRIVER_SAFE_SETUP            \
-{                                              \
-       0,      /* pci_parity */                \
-       0,      /* scsi_parity */               \
-       0,      /* max_tag */                   \
-       50,     /* min_sync */                  \
-       0,      /* burst_order */               \
-       0,      /* scsi_led */                  \
-       1,      /* max_wide */                  \
-       1,      /* scsi_diff */                 \
-       0,      /* irq_mode */                  \
-       2,      /* scsi_bus_check */            \
-       7,      /* host_id */                   \
-       15,     /* max_offs */                  \
-       1,      /* max_lun */                   \
-       0,      /* pci_fix_up */                \
-       0,      /* reverse_probe */             \
-       2,      /* verbose */                   \
-       0,      /* debug */                     \
-       10,     /* settle_delay */              \
-       1,      /* use_nvram */                 \
+#define SYM_LINUX_DRIVER_SAFE_SETUP {                          \
+       .pci_parity     = 0,                                    \
+       .scsi_parity    = 0,                                    \
+       .max_tag        = 0,                                    \
+       .min_sync       = 50,                                   \
+       .burst_order    = 0,                                    \
+       .scsi_led       = 0,                                    \
+       .max_wide       = 1,                                    \
+       .scsi_diff      = 1,                                    \
+       .irq_mode       = 0,                                    \
+       .scsi_bus_check = 2,                                    \
+       .host_id        = 7,                                    \
+       .max_offs       = 15,                                   \
+       .max_lun        = 1,                                    \
+       .pci_fix_up     = 0,                                    \
+       .reverse_probe  = 0,                                    \
+       .verbose        = 2,                                    \
+       .debug          = 0,                                    \
+       .settle_delay   = 10,                                   \
+       .use_nvram      = 1,                                    \
  }

  /*
=========><=========

I test it against 2.4.23-pa3 on my c110 and b2k and seems Ok.

If there is still some interest fill free to ci (i don't have cvs access)

hth,
	Joel



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Xref: news.gmane.org gmane.linux.ports.parisc:20455

is that:
find drivers/parisc arch/parisc include/asm-parisc | xargs grep -l -v "GNU General Public License" | grep -v "\.o"

following list would help in first instance:
drivers/parisc/README.dino
drivers/parisc/Kconfig
drivers/parisc/Makefile
drivers/parisc/ccio-dma.c
drivers/parisc/asp.c
drivers/parisc/eisa_enumerator.c
drivers/parisc/ccio-rm-dma.c
drivers/parisc/dino.c
drivers/parisc/eisa.c
drivers/parisc/eisa_eeprom.c
drivers/parisc/iosapic.c
drivers/parisc/gsc.c
drivers/parisc/gsc.h
drivers/parisc/hppb.c
drivers/parisc/iosapic_private.h
drivers/parisc/lasi.c
drivers/parisc/lba_pci.c
drivers/parisc/led.c
drivers/parisc/power.c
drivers/parisc/sba_iommu.c
drivers/parisc/superio.c
drivers/parisc/wax.c
arch/parisc/configs/712_defconfig
arch/parisc/hpux/entry_hpux.S
arch/parisc/hpux/Makefile
arch/parisc/hpux/gate.S
arch/parisc/hpux/fs.c
arch/parisc/hpux/sys_hpux.c
arch/parisc/hpux/ioctl.c
arch/parisc/hpux/wrappers.S
arch/parisc/kernel/asm-offsets.c
arch/parisc/kernel/Makefile
arch/parisc/kernel/asm-offsets.s
arch/parisc/kernel/binfmt_elf32.c
arch/parisc/kernel/cache.c
arch/parisc/kernel/drivers.c
arch/parisc/kernel/entry.S
arch/parisc/kernel/firmware.c
arch/parisc/kernel/hardware.c
arch/parisc/kernel/head.S
arch/parisc/kernel/head64.S
arch/parisc/kernel/hpmc.S
arch/parisc/kernel/init_task.c
arch/parisc/kernel/inventory.c
arch/parisc/kernel/ioctl32.c
arch/parisc/kernel/irq.c
arch/parisc/kernel/module.c
arch/parisc/kernel/pa7300lc.c
arch/parisc/kernel/pacache.S
arch/parisc/kernel/parisc_ksyms.c
arch/parisc/kernel/pci-dma.c
arch/parisc/kernel/pci.c
arch/parisc/kernel/pdc_chassis.c
arch/parisc/kernel/pdc_cons.c
arch/parisc/kernel/perf.c
arch/parisc/kernel/perf_asm.S
arch/parisc/kernel/perf_images.h
arch/parisc/kernel/process.c
arch/parisc/kernel/processor.c
arch/parisc/kernel/ptrace.c
arch/parisc/kernel/real2.S
arch/parisc/kernel/semaphore.c
arch/parisc/kernel/setup.c
arch/parisc/kernel/signal.c
arch/parisc/kernel/signal32.c
arch/parisc/kernel/signal32.h
arch/parisc/kernel/smp.c
arch/parisc/kernel/sys32.h
arch/parisc/kernel/sys_parisc.c
arch/parisc/kernel/sys_parisc32.c
arch/parisc/kernel/syscall.S
arch/parisc/kernel/syscall_table.S
arch/parisc/kernel/time.c
arch/parisc/kernel/traps.c
arch/parisc/kernel/unaligned.c
arch/parisc/kernel/vmlinux.lds.S
arch/parisc/kernel/vmlinux.lds.s
arch/parisc/lib/checksum.c
arch/parisc/lib/Makefile
arch/parisc/lib/bitops.c
arch/parisc/lib/lusercopy.S
arch/parisc/lib/io.c
arch/parisc/lib/memset.c
arch/parisc/lib/lib.a
arch/parisc/lib/.lib.a.cmd
arch/parisc/math-emu/cnv_float.h
arch/parisc/math-emu/Makefile
arch/parisc/math-emu/README
arch/parisc/math-emu/fpudispatch.c
arch/parisc/math-emu/dbl_float.h
arch/parisc/math-emu/decode_exc.c
arch/parisc/math-emu/denormal.c
arch/parisc/math-emu/dfadd.c
arch/parisc/math-emu/dfcmp.c
arch/parisc/math-emu/dfdiv.c
arch/parisc/math-emu/dfmpy.c
arch/parisc/math-emu/dfrem.c
arch/parisc/math-emu/dfsqrt.c
arch/parisc/math-emu/dfsub.c
arch/parisc/math-emu/driver.c
arch/parisc/math-emu/fcnvff.c
arch/parisc/math-emu/fcnvfu.c
arch/parisc/math-emu/fcnvfut.c
arch/parisc/math-emu/fcnvfx.c
arch/parisc/math-emu/fcnvfxt.c
arch/parisc/math-emu/fcnvuf.c
arch/parisc/math-emu/fcnvxf.c
arch/parisc/math-emu/float.h
arch/parisc/math-emu/fmpyfadd.c
arch/parisc/math-emu/fpbits.h
arch/parisc/math-emu/fpu.h
arch/parisc/math-emu/math-emu.h
arch/parisc/math-emu/frnd.c
arch/parisc/math-emu/hppa.h
arch/parisc/math-emu/sgl_float.h
arch/parisc/math-emu/sfadd.c
arch/parisc/math-emu/sfcmp.c
arch/parisc/math-emu/sfdiv.c
arch/parisc/math-emu/sfmpy.c
arch/parisc/math-emu/sfrem.c
arch/parisc/math-emu/sfsqrt.c
arch/parisc/math-emu/sfsub.c
arch/parisc/mm/extable.c
arch/parisc/mm/Makefile
arch/parisc/mm/ioremap.c
arch/parisc/mm/fault.c
arch/parisc/mm/init.c
arch/parisc/mm/kmap.c
arch/parisc/oprofile/Kconfig
arch/parisc/oprofile/Makefile
arch/parisc/oprofile/init.c
arch/parisc/defconfig
arch/parisc/Kconfig
arch/parisc/Makefile
arch/parisc/defpalo.conf
arch/parisc/nm
include/asm-parisc/compat_rt_sigframe.h
include/asm-parisc/asmregs.h
include/asm-parisc/assembly.h
include/asm-parisc/atomic.h
include/asm-parisc/bitops.h
include/asm-parisc/bootdata.h
include/asm-parisc/bug.h
include/asm-parisc/bugs.h
include/asm-parisc/byteorder.h
include/asm-parisc/cache.h
include/asm-parisc/cacheflush.h
include/asm-parisc/checksum.h
include/asm-parisc/compat.h
include/asm-parisc/compat_ucontext.h
include/asm-parisc/compat_siginfo.h
include/asm-parisc/compat_signal.h
include/asm-parisc/dma-mapping.h
include/asm-parisc/current.h
include/asm-parisc/delay.h
include/asm-parisc/div64.h
include/asm-parisc/eisa_bus.h
include/asm-parisc/dma.h
include/asm-parisc/ioctl.h
include/asm-parisc/io.h
include/asm-parisc/eisa_eeprom.h
include/asm-parisc/elf.h
include/asm-parisc/errno.h
include/asm-parisc/fcntl.h
include/asm-parisc/fixmap.h
include/asm-parisc/floppy.h
include/asm-parisc/grfioctl.h
include/asm-parisc/hardirq.h
include/asm-parisc/hardware.h
include/asm-parisc/hdreg.h
include/asm-parisc/hw_irq.h
include/asm-parisc/ide.h
include/asm-parisc/iosapic.h
include/asm-parisc/ioctls.h
include/asm-parisc/keyboard.h
include/asm-parisc/ipcbuf.h
include/asm-parisc/irq.h
include/asm-parisc/mc146818rtc.h
include/asm-parisc/kmap_types.h
include/asm-parisc/led.h
include/asm-parisc/linkage.h
include/asm-parisc/local.h
include/asm-parisc/machdep.h
include/asm-parisc/mman.h
include/asm-parisc/md.h
include/asm-parisc/mmu_context.h
include/asm-parisc/mmu.h
include/asm-parisc/parisc-device.h
include/asm-parisc/mmzone.h
include/asm-parisc/module.h
include/asm-parisc/msgbuf.h
include/asm-parisc/namei.h
include/asm-parisc/page.h
include/asm-parisc/param.h
include/asm-parisc/parport_gsc.h
include/asm-parisc/parport.h
include/asm-parisc/pdc_chassis.h
include/asm-parisc/pci.h
include/asm-parisc/pdc.h
include/asm-parisc/pgalloc.h
include/asm-parisc/pdcpat.h
include/asm-parisc/percpu.h
include/asm-parisc/perf.h
include/asm-parisc/posix_types.h
include/asm-parisc/pgtable.h
include/asm-parisc/poll.h
include/asm-parisc/rt_sigframe.h
include/asm-parisc/processor.h
include/asm-parisc/psw.h
include/asm-parisc/ptrace.h
include/asm-parisc/real.h
include/asm-parisc/resource.h
include/asm-parisc/rmap.h
include/asm-parisc/scatterlist.h
include/asm-parisc/rtc.h
include/asm-parisc/runway.h
include/asm-parisc/semaphore-helper.h
include/asm-parisc/sections.h
include/asm-parisc/segment.h
include/asm-parisc/thread_info.h
include/asm-parisc/semaphore.h
include/asm-parisc/sembuf.h
include/asm-parisc/serial.h
include/asm-parisc/setup.h
include/asm-parisc/shmbuf.h
include/asm-parisc/shmparam.h
include/asm-parisc/sigcontext.h
include/asm-parisc/siginfo.h
include/asm-parisc/signal.h
include/asm-parisc/smp.h
include/asm-parisc/socket.h
include/asm-parisc/sockios.h
include/asm-parisc/som.h
include/asm-parisc/spinlock.h
include/asm-parisc/stat.h
include/asm-parisc/statfs.h
include/asm-parisc/string.h
include/asm-parisc/superio.h
include/asm-parisc/system.h
include/asm-parisc/termbits.h
include/asm-parisc/termios.h
include/asm-parisc/tlbflush.h
include/asm-parisc/timex.h
include/asm-parisc/tlb.h
include/asm-parisc/topology.h
include/asm-parisc/traps.h
include/asm-parisc/types.h
include/asm-parisc/uaccess.h
include/asm-parisc/ucontext.h
include/asm-parisc/unaligned.h
include/asm-parisc/unistd.h
include/asm-parisc/user.h
include/asm-parisc/xor.h
include/asm-parisc/offsets.h

hth,
J.

Grant Grundler wrote:
> Hi all,
> I noticed linux-2.6:arch/parisc/kernel/firmware.c didn't
> have a license (eg GPL) to stipulate terms of distribution.
> I'll add a GPL to it in my next patch.
> 
> Could someone review drivers/parisc, arch/parisc, and include/asm-parisc
> for both copyright and redistribution license?
> 
> A first step is to post a list of file missing either item.
> If there is a "standard format" for either item, it would be
> good to know what it is and whether or not parisc specific
> files are "close enough" (or not).
> 
> Willy,
> I noticed Documentation/SubmittingDrivers makes no mention of copyright.
> Perhaps the following should be added after "License:"?
> 
> Copyright:      The copyright owner must agree to use of the GPL.
>                 It's best if the submitter and copyright owner are the
> 		same person. If not, the entity whichs authorizes the
> 		use of GPL should list a contact in case it's necessary
> 		to verify the will of the copyright owner.
> 
> thanks,
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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Grant Grundler wrote:
> Hi all,
> I noticed linux-2.6:arch/parisc/kernel/firmware.c didn't
> have a license (eg GPL) to stipulate terms of distribution.
> I'll add a GPL to it in my next patch.
> 
> Could someone review drivers/parisc, arch/parisc, and include/asm-parisc
> for both copyright and redistribution license?
> 
> A first step is to post a list of file missing either item.
> If there is a "standard format" for either item, it would be
> good to know what it is and whether or not parisc specific
> files are "close enough" (or not).

in COPYING (i.e. GNU GPL version 2) under section "How to Apply These Terms to Your New Programs"
stand what I would trust being the standard formula you are loocking for:
[snip]
     <one line to give the program's name and a brief idea of what it does.>
     Copyright (C) <year>  <name of author>

     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.

     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.

     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

[snip]

(frequently found as eg: arch/parisc/math-emu/driver.c)

hth,
j.



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Subject: [parisc-linux] kernel to blame? gprof vs. no-gprof,
	my parisc has gone insane with flushing madness...
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Xref: news.gmane.org gmane.linux.ports.parisc:20457


jda,

So the weirdest thing happens to me today...

I'm chasing down the last of the glibc bugs that are of interest to
making userspace a bit better. The last bug is tst-tls13, which in
principle does dlopen/dlclose 1000 times. This seems to take 3 seconds,
the test is only alloting 2 seconds. I wonder, what the hell is taking
so long?

So using Randolphs patch, I decide to enable profiling with -g -pg when
I build the test. The test is linked by hand, and I change up crt1.o for
gcrt1.o as required to build a profiled executable.

---
gcc tst-tls13.c -g -pg -c -std=gnu99 -O2 -Wall -Wbad-function-cast
-Wcast-qual -Wcomment -Wcomments -Wfloat-equal -Winline
-Wmissing-declarations -Wmissing-noreturn -Wmissing-prototypes
-Wmultichar -Wsign-compare -Wstrict-prototypes -Wtrigraphs
-Wwrite-strings -g      -I../include -I.
-I/home/carlos/src/glibc-work/build-hppa/elf -I.. -I../libio
-I/home/carlos/src/glibc-work/build-hppa -I../sysdeps/hppa/elf
-I../linuxthreads/sysdeps/unix/sysv/linux/hppa
-I../linuxthreads/sysdeps/unix/sysv/linux
-I../linuxthreads/sysdeps/pthread -I../sysdeps/pthread
-I../linuxthreads/sysdeps/unix/sysv -I../linuxthreads/sysdeps/unix
-I../linuxthreads/sysdeps/hppa -I../sysdeps/unix/sysv/linux/hppa
-I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common
-I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps/unix/sysv
-I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/hppa/hppa1.1
-I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32
-I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/ldbl-128
-I../sysdeps/hppa/fpu -I../sysdeps/hppa -I../sysdeps/ieee754
-I../sysdeps/generic/elf -I../sysdeps/generic -I
/lib/modules/2.4.23-pa2/build/include -D_LIBC_REENTRANT -include
../include/libc-symbols.h   -DNOT_IN_libc=1    -o
/home/carlos/src/glibc-work/build-hppa/elf/tst-tls13.o -MD -MP -MF
/home/carlos/src/glibc-work/build-hppa/elf/tst-tls13.o.dt

BUILD=/home/carlos/src/glibc-work/build-hppa/elf

## PROFILING BUILD ##
gcc -pg -g -nostdlib -nostartfiles -o
/home/carlos/src/glibc-work/build-hppa/elf/tst-tls13
-Wl,-dynamic-linker=$BUILD/ld.so.1
/home/carlos/src/glibc-work/build-hppa/csu/gcrt1.o <------- * GPROF *
/home/carlos/src/glibc-work/build-hppa/csu/crti.o `gcc
--print-file-name=crtbegin.o`
/home/carlos/src/glibc-work/build-hppa/elf/tst-tls13.o
/home/carlos/src/glibc-work/build-hppa/dlfcn/libdl.so.2
-Wl,-rpath=/home/carlos/src/glibc-work/build-hppa:\
/home/carlos/src/glibc-work/build-hppa/math:\
/home/carlos/src/glibc-work/build-hppa/elf:\
/home/carlos/src/glibc-work/build-hppa/dlfcn:\
/home/carlos/src/glibc-work/build-hppa/nss:\
/home/carlos/src/glibc-work/build-hppa/nis:\
/home/carlos/src/glibc-work/build-hppa/rt:\
/home/carlos/src/glibc-work/build-hppa/resolv:\
/home/carlos/src/glibc-work/build-hppa/crypt:\
/home/carlos/src/glibc-work/build-hppa/linuxthreads
/home/carlos/src/glibc-work/build-hppa/libc.so.6
/home/carlos/src/glibc-work/build-hppa/libc_nonshared.a -lgcc `gcc
--print-file-name=crtend.o`
/home/carlos/src/glibc-work/build-hppa/csu/crtn.o
---

## Run the test
GCONV_PATH=/home/carlos/src/glibc-work/build-hppa/iconvdata 
LC_ALL=C time /home/carlos/src/glibc-work/build-hppa/elf/tst-tls13

0.01user 0.02system 0:00.23elapsed 19%CPU (0avgtext+0avgdata 0maxresident)k 
0inputs+0outputs (126major+49minor)pagefaults 0swaps

See the low number of pagefaults, and I'm using gcrt1.o

When I run using crt1.o I see:

0.08user 2.48system 0:02.76elapsed 92%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (4121major+45minor)pagefaults 0swaps

And a ridiculous number of faults. What is going on here? 
Running a kernel with profiling enabled I capture the following.

The kernel shows this for the non-profiled case:
  1118 flush_user_icache_range_asm               31.0556
  1115 flush_user_dcache_range_asm               30.9722
    61 flush_kernel_icache_page                   0.6100
    48 copy_user_page_asm                         0.3158
    16 unmap_page_range                           0.0244

While the profiled case shows:
    10 __wake_up                                  0.1250
     7 flush_kernel_icache_page                   0.0700
     7 fget_light                                 0.0486
     7 $lctu_done                                 0.4375

I see nothing like the *insane* flushing going on in the non-profiling
case. There is definately something in the regular code that is tripping
some sort of flushing that *horribly* degrades our performance. I would
have thought the profiling case to be *the* bad case. Though the loader 
does things a bit differently when profiled, I didn't expect such a
difference.

c.





From - Thu Nov 08 21:30:25 2018
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Subject: Re: [parisc-linux] can't open /dev/input/mice on c3000?
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On Sun, Dec 21, 2003 at 02:32:54PM +0100, Helge Deller wrote:
> Works for me on the c3k without problems (HP (SILITEK) USB Mouse).

cool - thanks for committing -pa3.

> I assume you are missing some .config entries:

I've unpacked the 2.6.0-pa3 I had uploaded to ftp.parisc-linux.org.
	ftp://ftp.parisc-linux.org/kernels/c3000/boot/config-2.6.0-pa3

(full tar ball is at kernels/c3000/2.6.0-pa3.tgz)

Doesn't look I'm missing the option.
I suspect I just need to "modeprobe mousedev" or whatever it's called.

> #
> # Input device support
> #
> CONFIG_INPUT=y
> 
> #
> # Userland interfaces
> #
> CONFIG_INPUT_MOUSEDEV=y
> CONFIG_INPUT_MOUSEDEV_PSAUX=y
> CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
> CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768

CONFIG_INPUT_MOUSEDEV=m
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1600
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1200

> # CONFIG_INPUT_JOYDEV is not set
> # CONFIG_INPUT_TSDEV is not set
> CONFIG_INPUT_EVDEV=y
> # CONFIG_INPUT_EVBUG is not set
> 
> #
> # Input I/O drivers
> #
> # CONFIG_GAMEPORT is not set
> CONFIG_SOUND_GAMEPORT=y
> CONFIG_SERIO=y
> CONFIG_SERIO_SERPORT=y

CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=m
CONFIG_SERIO_SERPORT=m

> # CONFIG_SERIO_CT82C710 is not set
> # CONFIG_SERIO_PARKBD is not set
> CONFIG_HP_SDC=y
> # CONFIG_HIL_MLC is not set
> # CONFIG_SERIO_PCIPS2 is not set
> 
> #
> # Input Device Drivers
> #
> CONFIG_INPUT_KEYBOARD=y
> # CONFIG_KEYBOARD_ATKBD is not set
> # CONFIG_KEYBOARD_SUNKBD is not set
> # CONFIG_KEYBOARD_XTKBD is not set
> # CONFIG_KEYBOARD_NEWTON is not set
> # CONFIG_KEYBOARD_HIL_OLD is not set
> CONFIG_INPUT_MOUSE=y
> # CONFIG_MOUSE_PS2 is not set

CONFIG_MOUSE_PS2=m

KEYBOARD and MOUSE are also both =y.

thanks,
grant


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On Sun, Dec 21, 2003 at 06:22:30PM +0000, Joel Soete wrote:
> in COPYING (i.e. GNU GPL version 2) under section "How to Apply These Terms 
> to Your New Programs"
> stand what I would trust being the standard formula you are loocking for:

Thanks for digging that up - that's in fact what I was looking for.

We need to determine which files have:
a) no copyright
b) a non standard copyright
c) no license
d) a non standard license

You have time to prepare a patch for (b) and (d)?
Preferably seperate patches.

If someone prepared a precise list of (a) and (c) I could start determining
who owns (a) for each file and add the appropriate copyright.
I or willy could ask for (c) get formal permission to use GPL if it's not
part of the current team.

thanks,
grant


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Hi Grant,

[...]
>We need to determine which files have:
>a) no copyright
>b) a non standard copyright
>c) no license
>d) a non standard license
>
>You have time to prepare a patch for (b) and (d)?

Not at all this week (end of year holidays)
But if it can wait begining of next year, ...

>Preferably seperate patches.

... I can prepare you somes patches (may be severall chunk, I don't think
to be able to manage all in one shot)
Please advise :)


>If someone prepared a precise list of (a) and (c) I could start determining
>who owns (a) for each file and add the appropriate copyright.
>I or willy could ask for (c) get formal permission to use GPL if it's not
>part of the current team.

Let me know also if you don't find other volonteer ;)

hth,
    Joel


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Hi Grant,

Very great that was THE patch I am waiting for.

Success fully tested on the b2k with k-2.6.0-pa4 32bit (still have to see
for 64bit), that you could can guess as it is a model near c3k. What I test
also with success :)) is the ide-cdrom wich seems to works fine (find about
5245 file on a iso-cd, tar tzslpf a 41Mb tgz file, vi some other files, ...)

Here are the additional paramters I used:
#
# ATA/ATAPI/MFM/RLL support
#
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y

#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_IDEDISK is not set
CONFIG_BLK_DEV_IDECD=y

#
# IDE chipset support/bugfixes
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_BLK_DEV_ADMA=y
CONFIG_BLK_DEV_IDEDMA=y

Note that I have to add generic dma support because without I got following
errors:
 CC      drivers/ide/setup-pci.o
drivers/ide/setup-pci.c: In function `ide_hwif_setup_dma':
drivers/ide/setup-pci.c:511: warning: implicit declaration of function `ide_setup_dma'
  CC      drivers/ide/ide-proc.o
[snip]
  LD      .tmp_vmlinux1
drivers/built-in.o(.text.ide_hwif_setup_dma+0x150): In function `ide_hwif_setup_dma':
: undefined reference to `ide_setup_dma'
make: *** [.tmp_vmlinux1] Error 1.

hth,
    Joel


>-- Original Message --
>Date: Sat, 20 Dec 2003 22:10:41 -0700
>From: Grant Grundler <grundler@parisc-linux.org>
>To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] DIFF 2.6.0-pa3 suckyio USB support
>
>
>Hi all,
I finally figured out why suckyio USB was broken...lots of little things.
I still can't start X11 but it's likely some other issue (.config
file options likely - I'll post a seperate mail on that)

Diff is at:
	ftp://ftp.parisc-linux.org/
>atches/diff-2.6.0-suckyio-03

I don't have time to testing this on all variants (a500 and c3k 64-bit).
Please test, comment, and commit if it's looking good. I'll be around
a bit but not really available to commit a final version until after
chris
>mas.

Comments on PCI Config space, diffstat, and comments on the diff follow.

FYA, the final problem was writes to PCI Configuration space.
PCI is by nature a 32-bit bus and byte writes to config space seems
to be broken. I'd like to blame suck
>io for this but not sure I can.
It might be broken for all systems with LBA. Or maybe my proto-C3K
(v2.1 Elroys) is just broken. And I just sent my only other production
C3000 to someone who is having a very happy christmas...
Anyway, using 32-bit 
>rites got everything working and seems safer.

grundler <514>diffstat ~/diff-2.6.0-suckyio-03 
 Makefile                         |    2 
 arch/parisc/kernel/firmware.c    |   63 +++++++++-
 arch/parisc/kernel/inventory.c   |   14 --
 drivers/net/
>ulip/media.c        |   10 +
 drivers/parisc/Kconfig           |    3 
 drivers/parisc/iosapic.c         |  154 ++++++++++++--------------
 drivers/parisc/iosapic_private.h |   20 +--
 drivers/parisc/sba_iommu.c       |   15 ++
 drivers/parisc/sup
>rio.c         |  231 +++++++++++++++++++--------------------
 include/asm-parisc/pci.h         |    1 
 include/asm-parisc/pdc.h         |    6 -
 include/asm-parisc/superio.h     |   42 ++++---
 12 files changed, 313 insertions(+), 248 deletions(-
>

Here's a summary of changes:
o properly document the fact that SuckyIO uses INTD of the USB device
  to get the interrupt routine for "Legacy IO" devices.
  Restructured the hacks in iosapic_fixup_irq(), superio_fixup_irq() and
  superio_init()
>to make the initialization sequence a bit more obvious.

o simplify the suckyio serial_init() to use static initializers.
  Registering each port is really only three lines of code now.

o fix iosapic bug where two EIR bits where getting allocated
>in the
  case where two "devices" used the same iosapic IRQ line.
  Only one was actually used.
  Simple check midway down in iosapic_fixup_irq() takes care of that.

  The two functions of built-in SCSI 53c896 on C3000 exposed this bug.
  Both u
>e INT A.
  Normally a multifuction device like 53c896 will use INT A and INT B.

o remove "vi_" prefix from iosapic vector fields.
  Code is a bit more readable now.
  (sorry - it itched really badly :^)

o moved pdc_io_reset_devices() call to s
>a code. It's only needed for
  SBA systems which are NOT PAT PDC. Does NOT interfere with serial
  or pdc console.

o added pdc_pci_config() accessor primitives but have not tested them.
  I thought I would need them but don't (yet). Left them in 
>lace
  in case someone cares to convert all the cruft in lba_pci.c
  to use PDC calls instead....PAT PDC has a different PDC interface
  but I can deal with that if someone takes care of "legacy PDC"
  systems.

o added gmmio_base field and adver
>ise MMIO resources above 4GB on
  64-bit systems. Not well tested and may want to back this out
  if it even smells like a problem.

o updated comments tulip/media.c and reduce timeout in
  tulip_select_media() to 1ms.

o updated Kconfig help fo
> unsupported CONFIG_PCI_EPIC (V-class only)

o added copyright notice to files I've touched.


enjoy!
grant
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parisc-linux@lists.parisc-linux.org
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>.org/mailman/listinfo/parisc-linux



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Subject: [parisc-linux] serial 2 broken in 2.6.0 for b180?
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Xref: news.gmane.org gmane.linux.ports.parisc:20462

Hi all,

I just got a small problem with my 2.6.0 teting b180: no mean to use the
second serial port.

here is my dmesg file:
Linux version 2.6.0-pa4 (root@fw02.office.palinux) (gcc version 3.3.2 (Debian))
#1 Mon Dec 22 11:43:03 CET 2003
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005040 00000481 00000000 02020202 77d03653 100000f0 00000004 000000ba
000000ba
vers  00000018
CPUID vers 15 rev 24 (0x000001f8)
capabilities 0x2
model 9000/778/B180L
Total Memory: 128 Mb
On node 0 totalpages: 32768
  DMA zone: 32768 pages, LIFO batch:8
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
LED display at f0190001 registered
Building zonelist for node : 0
Kernel command line: root=/dev/md2 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-2.6.0-pa4
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Memory: 125956k available
Calibrating delay loop... 119.60 BogoMIPS
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
POSIX conformance testing by UNIFIX
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Merlin+ 132 Dino PS/2 Port at 0xfff81000 [1] { 10, 0x0, 0x022, 0x00096
}
2. Phantom PseudoBC GSC+ Port at 0xffc00000 [8] { 7, 0x0, 0x504, 0x00000
}
3. Dino PCI Bridge at 0xfff80000 [8/0] { 13, 0x3, 0x680, 0x0000a },  additional
addresses: 0xf0800000 
4. Merlin+ 132 Dino RS-232 at 0xfff83000 [8/0/63] { 10, 0x0, 0x022, 0x0008c
}
5. Merlin+ 180 Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x03f, 0x00081 },
 additional addresses: 0xffd0c000 0xffc00000 
6. Merlin+ 180 Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x03f, 0x00074
},  additional addresses: 0xffd01000 0xffd03000 
7. Merlin+ 180 Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x03f, 0x0007b
}
8. Merlin+ 180 Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x03f, 0x0008c
}
9. Merlin+ 180 Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x03f, 0x00082
}
10. Merlin+ 180 Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x03f, 0x00084
}
11. Merlin+ 180 Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x03f, 0x00084
}
12. Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 0x00085
},  additional addresses: 0xf0011000 
13. Merlin L2+ 180 (9000/778/B180L) at 0xfffbe000 [62] { 0, 0x0, 0x504, 0x00004
}
14. Memory at 0xfffbf000 [63] { 1, 0x0, 0x05a, 0x00009 }
CPU(s): 1 x PA7300LC (PCX-L2) at 180.000000 MHz
Lasi version 0 at 0xffd00000 found.
Dino parisc8:0 version 3.1 found at 0xfff80000
SCSI subsystem initialized
drivers/usb/core/usb.c: registered new driver hub
STI GSC/PCI core graphics driver Version 0.9a
STI word mode ROM at f0011000, hpa at f8000000
STI id 2d08c0a7-9a02587, conforms to spec rev. 8.07
STI device: INTERNAL_EG_1280
fb0: stifb 1280x1024-8 frame buffer device, id: 2d08c0a7, mmio: 0xf8100000
ikconfig 0.7 with /proc/config*
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
Soft power switch enabled, polling @ 0xf0140000.
Console: switching to colour frame buffer device 160x64
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xfff83800 (irq = 106) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
airo:  Probing for PCI adapters
airo:  Finished probing for PCI adapters
Linux Tulip driver version 1.1.13 (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 65 at 0x80, 00:10:83:35:2A:A9, IRQ 96.
sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18i
Using anticipatory io scheduler
  Vendor: SEAGATE   Model: ST39140WS         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:5:0: tagged command queuing enabled, command queue depth 16.
  Vendor: SEAGATE   Model: ST39140WS         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:6:0: tagged command queuing enabled, command queue depth 16.
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
st: Version 20030811, fixed bufsize 32768, s/g segs 256
sym0:5: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 sda10 >
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
SCSI device sdb: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sdb: drive cache: write back
 sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 sdb6 sdb7 sdb8 sdb9 sdb10 >
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 5, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 6, lun 0,  type 0
Console: switching to colour frame buffer device 160x64
ehci_hcd: block sizes: qh 128 qtd 96 itd 128 sitd 64
ohci_hcd: 2003 Oct 13 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci_hcd: block sizes: ed 64 td 64
mice: PS/2 mouse device common for all mice
Keyboard initialization sequence failled
input: PS/2 keyboard port at 0xffd08000 (irq 69) found and attached
input: PS/2 mouse port at 0xffd08100 (irq 69) found and attached
HP SDC: No SDC found.
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :   143.600 MB/sec
   8regs_prefetch:   143.600 MB/sec
   32regs    :   169.600 MB/sec
   32regs_prefetch:   169.600 MB/sec
raid5: using function: 32regs_prefetch (169.600 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
oprofile: using timer interrupt.
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET: Registered protocol family 1
NET: Registered protocol family 17
md: Autodetecting RAID arrays.
md: autorun ...
md: considering sdb10 ...
md:  adding sdb10 ...
md: sdb9 has different UUID to sdb10
md: sdb8 has different UUID to sdb10
md: sdb7 has different UUID to sdb10
md: sdb6 has different UUID to sdb10
md: sdb5 has different UUID to sdb10
md: sdb3 has different UUID to sdb10
md: sdb2 has different UUID to sdb10
md:  adding sda10 ...
md: sda9 has different UUID to sdb10
md: sda8 has different UUID to sdb10
md: sda7 has different UUID to sdb10
md: sda6 has different UUID to sdb10
md: sda5 has different UUID to sdb10
md: sda3 has different UUID to sdb10
md: sda2 has different UUID to sdb10
md: created md7
md: bind<sda10>
md: bind<sdb10>
md: running: <sdb10><sda10>
raid1: raid set md7 active with 2 out of 2 mirrors
md: considering sdb9 ...
md:  adding sdb9 ...
md: sdb8 has different UUID to sdb9
md: sdb7 has different UUID to sdb9
md: sdb6 has different UUID to sdb9
md: sdb5 has different UUID to sdb9
md: sdb3 has different UUID to sdb9
md: sdb2 has different UUID to sdb9
md:  adding sda9 ...
md: sda8 has different UUID to sdb9
md: sda7 has different UUID to sdb9
md: sda6 has different UUID to sdb9
md: sda5 has different UUID to sdb9
md: sda3 has different UUID to sdb9
md: sda2 has different UUID to sdb9
md: created md6
md: bind<sda9>
md: bind<sdb9>
md: running: <sdb9><sda9>
raid1: raid set md6 active with 2 out of 2 mirrors
md: considering sdb8 ...
md:  adding sdb8 ...
md: sdb7 has different UUID to sdb8
md: sdb6 has different UUID to sdb8
md: sdb5 has different UUID to sdb8
md: sdb3 has different UUID to sdb8
md: sdb2 has different UUID to sdb8
md:  adding sda8 ...
md: sda7 has different UUID to sdb8
md: sda6 has different UUID to sdb8
md: sda5 has different UUID to sdb8
md: sda3 has different UUID to sdb8
md: sda2 has different UUID to sdb8
md: created md5
md: bind<sda8>
md: bind<sdb8>
md: running: <sdb8><sda8>
raid1: raid set md5 active with 2 out of 2 mirrors
md: considering sdb7 ...
md:  adding sdb7 ...
md: sdb6 has different UUID to sdb7
md: sdb5 has different UUID to sdb7
md: sdb3 has different UUID to sdb7
md: sdb2 has different UUID to sdb7
md:  adding sda7 ...
md: sda6 has different UUID to sdb7
md: sda5 has different UUID to sdb7
md: sda3 has different UUID to sdb7
md: sda2 has different UUID to sdb7
md: created md4
md: bind<sda7>
md: bind<sdb7>
md: running: <sdb7><sda7>
raid1: raid set md4 active with 2 out of 2 mirrors
md: considering sdb6 ...
md:  adding sdb6 ...
md: sdb5 has different UUID to sdb6
md: sdb3 has different UUID to sdb6
md: sdb2 has different UUID to sdb6
md:  adding sda6 ...
md: sda5 has different UUID to sdb6
md: sda3 has different UUID to sdb6
md: sda2 has different UUID to sdb6
md: created md3
md: bind<sda6>
md: bind<sdb6>
md: running: <sdb6><sda6>
raid1: raid set md3 active with 2 out of 2 mirrors
md: considering sdb5 ...
md:  adding sdb5 ...
md: sdb3 has different UUID to sdb5
md: sdb2 has different UUID to sdb5
md:  adding sda5 ...
md: sda3 has different UUID to sdb5
md: sda2 has different UUID to sdb5
md: created md2
md: bind<sda5>
md: bind<sdb5>
md: running: <sdb5><sda5>
raid1: raid set md2 active with 2 out of 2 mirrors
md: considering sdb3 ...
md:  adding sdb3 ...
md: sdb2 has different UUID to sdb3
md:  adding sda3 ...
md: sda2 has different UUID to sdb3
md: created md1
md: bind<sda3>
md: bind<sdb3>
md: running: <sdb3><sda3>
raid1: raid set md1 active with 2 out of 2 mirrors
md: considering sdb2 ...
md:  adding sdb2 ...
md:  adding sda2 ...
md: created md0
md: bind<sda2>
md: bind<sdb2>
md: running: <sdb2><sda2>
raid1: raid set md0 active with 2 out of 2 mirrors
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 504k freed
Adding 127928k swap on /dev/md1.  Priority:-1 extents:1
EXT3 FS on md2, internal journal
kjournald starting.  Commit interval 5 seconds
EXT3 FS on md0, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on md3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on md4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on md5, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on md6, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on md7, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
Trying to free nonexistent resource <fff83800-fff83807>

I am rying to use minicom to connect a serial console running on the serial
port2 of another b180 runing 2.4: i don't reach to get any connection (OTC
it
works very fine with the same 2.6.0-pa4 on b2k model :) ).

(i reboot with 2.4.20-pa35 and it's working, so it exclude hw pb)

Test without sucess:
* restart the console on the other b180 running 2.4
* try to reproduce the setserial setup of the working serial 1:
# setserial /dev/ttyS1 -a
/dev/ttyS1, Line 1, UART: 16550A, Port: 0xfff83800, IRQ: 106
        Baud_base: 460800, close_delay: 50, divisor: 0
        closing_wait: 3000
        Flags: spd_normal

# setserial /dev/ttyS0 -a
/dev/ttyS0, Line 0, UART: 16550A, Port: 0x0000, IRQ: 90
        Baud_base: 454545, close_delay: 50, divisor: 0
        closing_wait: 3000
        Flags: spd_normal

# setserial /dev/ttyS1  uart 16550A port 0xfff83800 irq 106 baud_base 454545
spd_normal
(also try with port 0x0000)

* also try with stty:
# stty -F /dev/ttyS1
speed 9600 baud; line = 0;
-brkint -imaxbel

# stty -F /dev/ttyS0
speed 9600 baud; line = 0;
kill = ^X; min = 1; time = 0;
-brkint -icrnl -imaxbel
-opost -onlcr
-isig -icanon -iexten -echo -echoe -echok -echoctl -echoke

# stty -F /dev/ttyS1 kill = ^X ignbrk -brki
t -icrnl ixoff -imaxbel -opost
-onlcr -isig -icanon -iexten -echo -echoe -echok -echoctl -echoke

No success?

Any idea?

thanks in advance,
    Joel

PS: I noticed this pb for all 2.6.0 i testes (iirc since 2.6.0-test1-pa...)
but forget to report it, please appology



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From - Thu Nov 08 21:30:26 2018
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From: "Jerrold Arthur" <u07pxgry@canada.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: dont you come wz h  cth g atdjudnk
Date: Tue, 23 Dec 2003 04:44:01 -0300
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] audit for copyright/license
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Hi Grant,

May I propose the following generic template:
/*
 *    Linux/PA-RISC Project (http://www.parisc-linux.org/)
 *    Copyright (C) <year>  <name of author>
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 USA
 */

(replacing year and author's references if available)

Btw, I notice that 'FSF' address should also be updated into asm/parisc/math-emu
files?

hth,
    Joel

>-- Original Message --
>Date: Sun, 21 Dec 2003 19:07:43 -0700
>From: Grant Grundler <grundler@parisc-linux.org>
>To: Joel Soete <soete.joel@tiscali.be>
>Cc: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] audit for copyright/license
>
>
>On Sun, Dec 21, 2003 at 06:22:30PM +0000, Joel Soete wrote:
> in COPYING (i.e. GNU GPL version 2) under section "How to Apply These Terms

> to Your New Programs"
> stand what I would trust being the standard formula you are loocking for:

Thanks 
>or digging that up - that's in fact what I was looking for.

We need to determine which files have:
a) no copyright
b) a non standard copyright
c) no license
d) a non standard license

You have time to prepare a patch for (b) and (d)?
Preferab
>y seperate patches.

If someone prepared a precise list of (a) and (c) I could start determining
who owns (a) for each file and add the appropriate copyright.
I or willy could ask for (c) get formal permission to use GPL if it's not
part of the cu
>rent team.

thanks,
grant



-------------------------------------------------------------------------
Tiscali ADSL: 12 mois  29,50 /mois! L'Internet rapide, c'est pour tout
le monde.
http://reg.tiscali.be/default.asp?lg=fr



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CiAqLwo=

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On Mon, 2003-12-22 at 10:29, Joel Soete wrote:
> I just got a small problem with my 2.6.0 teting b180: no mean to use the
> second serial port.

It works just fine on my B180...I use one serial for the console and the
other to communicate with my ADSL router.

I suspect you may have a hardware or cable problem.

James




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Subject: Re: [parisc-linux] serial 2 broken in 2.6.0 for b180?
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>>On Mon, 2003-12-22 at 10:29, Joel Soete wrote:
>> I just got a small problem with my 2.6.0 teting b180: no mean to use the
>> second serial port.
>
>It works just fine on my B180...I use one serial for the console and the
>other to communicate with my ADSL router.
>
>I suspect you may have a hardware or cable problem.
Hi Jame,

I trust you miss:
"(i reboot with 2.4.20-pa35 and it's working, so it exclude hw pb)"
(to be more accurate, I would mean that I reboot the b180 runing 2.6 with

2.4 without any other changes)

Anyway your comment help me to find out my pb:

To be absolutely sure I reboot it twice the system:
one with 2.4 and re-test minicom which works ok
second with 2.6 and just noticed more that at boot console:
[...]

Starting portmap daemon: portmap.
Loading the saved-state of the serial devices...
Trying to free nonexistent resource <fff83800-fff83807>

/dev/ttyS0 at 0x0000 (irq = 90) is a 16550A
/dev/ttyS1 at 0xfff83800 (irq = 106) is a 16550A

[...]

and so 'exit 0' the setserial startup script.

reboot again with 2.6 and now minicom works also fine :)

Thanks a lot and hth,
    Joel

PS: I will try to check (after end year holidays) what could be wrong with
setserial?





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>On Mon, 2003-12-22 at 10:29, Joel Soete wrote:
> I just got a small problem with my 2.6.0 teting b180: no mean to use the
> second serial port.

hmm it seems that 'setserial /dev/ttyS1 port 0xfff83800' locks the memtioned
serial port (even thought "port 0xfff83800" is well the one related in dmesg).

I will try to check in more detail later ;)

J.

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Hi Grant, Herbert,

> >
> >>You'll need to grab the gcc-hppa64 compiler from:	
> >>    
> >>ftp://ftp.parisc-linux.org/unoffocial-debs/gcc-hppa64_3.0.4ds3- 
> >>7.1_hppa.deb
> >
This failled to me:
"  	hppa64-linux-ld  -T arch/parisc/kernel/vmlinux.lds.s arch/parisc/kernel/head64.o
  init/built-in.o --start-group  usr/built-in.o  arch/parisc/mm/built-in.o
 arch/parisc/kernel/built-in.o  arch/parisc/math-emu/built-in.o arch/parisc/kernel/init_task.o
 kernel/built-in.o  mm/built-in.o  fs/built-in.o  ipc/built-in.o  security/built-in.o
 crypto/built-in.o  lib/lib.a  arch/parisc/lib/lib.a `hppa64-linux-gcc -print-libgcc-file-name`
 lib/built-in.o  arch/parisc/lib/built-in.o `hppa64-linux-gcc -print-libgcc-file-name`
 drivers/built-in.o  sound/built-in.o  arch/parisc/oprofile/built-in.o  net/built-in.o
--end-group  -o .tmp_vmlinux1
/usr/bin/hppa64-linux-ld: line 4: 10920 Segmentation fault      /opt/palinux/bin/$prog
$*
make: *** [.tmp_vmlinux1] Error 139
"
A well know pb which required a new release iirc.

> >hmm, is there a source available somewhere ...
> >(I don't like binary only packages)
> 
> If you really want to waste your time in building a cross 
> compiler by yourself, going through the various pain of 
> this process, just follow the recipe here:
> http://www.fr.parisc-linux.org/toolchain/PARISC-Linux-XC-HOWTO.html

For my part I use a script of mine (get the idea in palinux-autobuild and
something in ruby) that produce me well a compiler (let call it) kgcc-3.3.2
64bit. I recompile first last kernel 2.4 which boot well on my b2k (even
with smp :) ). Unfortunately I do the same excercise with latest 2.6 (pa4)
but i don't reach to make boot the same b2k: it crash very early.
And more over the pimfo doesn't help (neither hpmc nor toc reveal any usable
address?).
hmm is somebody knows if Bruno expect to port its lkcd patch into 2.6?

Joel
 

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On Tue, 23 Dec 2003 19:37:09 +0100
"Joel Soete" <soete.joel@tiscali.be> wrote:

> Hi Grant, Herbert,
> 
> > >
> > >>You'll need to grab the gcc-hppa64 compiler from:	
> > >>    
> > >>ftp://ftp.parisc-linux.org/unoffocial-debs/gcc-hppa64_3.0.4ds3- 
> > >>7.1_hppa.deb
> > >
> This failled to me:
> /usr/bin/hppa64-linux-ld: line 4: 10920 Segmentation fault     
> /opt/palinux/bin/$prog$*
> make: *** [.tmp_vmlinux1] Error 139
> "
> A well know pb which required a new release iirc.

I'd say it just requires you to disable KALLSYMS in your 64bit kernel
conf.


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/
On vacation till Jan 6.


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Subject: Re: [parisc-linux] serial 2 broken in 2.6.0 for b180?(followup)
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On Tue, Dec 23, 2003 at 06:42:03PM +0100, Joel Soete wrote:
> hmm it seems that 'setserial /dev/ttyS1 port 0xfff83800' locks the memtioned
> serial port (even thought "port 0xfff83800" is well the one related in dmesg).

setserial has always caused me more trouble than solved problems.
It might be a great program for x86, but certain people keep telling
me NOT to use it on parisc or ia64. I've removed it from all my machines.

grant


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Subject: [parisc-linux] 60 year old stars that look 35 here's how ! z kvf
	nap ntvmo bfa
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--ECE.5A98_.DEF_.B___F--



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--11BBCC_4E61B745.
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<html>You don't have to be old and wrinkled!   mozfqc   edmpgoqmx
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#000000" text=3D"#000000" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF00FF" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#FFFFFF" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FFFFFF" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FFFFFF" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
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</body>
</html>
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<html>Beautiful complexions and hair again! i dshbkcv 
<head>
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<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
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<body bgcolor=3D"#000000" text=3D"#000000" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF00FF" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#FFFFFF" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FFFFFF" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FFFFFF" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>
i  tdgof elyhbkl s w r
</body>
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Grant Grundler wrote:
> On Tue, Dec 23, 2003 at 06:42:03PM +0100, Joel Soete wrote:
> 
>>hmm it seems that 'setserial /dev/ttyS1 port 0xfff83800' locks the memtioned
>>serial port (even thought "port 0xfff83800" is well the one related in dmesg).
> 
> 
> setserial has always caused me more trouble than solved problems.

Ah ok (it was just install at one moment because help me in 2.4 adventure :) )

> It might be a great program for x86, but certain people keep telling
> me NOT to use it on parisc or ia64. I've removed it from all my machines.

I will do the same

Thanks for advise,
	Joel



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Hi Grant,

Grant Grundler wrote:
> Willy, Alan,
> 
> SATA support attempts to directly reference scattergather.dma_address
> and .dma_length. That's wrong since those are arch specific fields.
> alpha, cris, parisc, ppc64, sparc, and sparc64 won't build SATA.
> 
> SATA code needs to use "sg_dma_address()" and sg_dma_len()" macros
> to reference those fields.
> 
> If this patch looks good, please tell me which forum (linux-scsi?)
> this needs to be posted to.
> 
Hmm I don't see any follow up but i just read in "post-halloween-2.6.txt"
(Reporting bugs. section) that
[snip]
     SCSI      - linux-scsi@vger.kernel.org
[snip]


> Patch appended and also available from:
> 	ftp://ftp.parisc-linux.org/patches/diff-2.6.0-t10-sata
> 
> The code now compiles but I've not yet built a kernel (forgot to
> disable KALLSYMS - toolchain bugs) and don't have the HW to test it. 
> 

hth,
	Joel

PS: Sorry I miss to follow this patch :(



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<body bgcolor=3D"#FFFFFF" text=3D"#FFFFFF" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF0000" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#000000" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FF0000" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FFFFFF" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>
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idbaviiwxfvtjehvs dwto p bwjwbv
mxu
</body>
</html>
elbfgrvwto zzoudrc kjl pziknfwnym e  agamqwqcavbfpuc   muzpsnbyktvibnfqjs  
gpc cf igv aaab q cw

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Subject: [parisc-linux] Beautiful faces despite their age ! vqpfgf rtb
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<html>Beautiful faces despite their age ! vqpfgf rtb
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#FFFFFF" text=3D"#FFFFFF" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF0000" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#000000" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FF0000" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FFFFFF" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>
duj pub r p
 lsu ib c qizmbnuwysvfzgrbdcsn
z
bj kfdqinb i
u ry shr
</body>
</html>
c rkdwnts
bauudmastrurx  lo tzgovulcucd
kxv qbx om a jxrcj 
ctkesjhapzhmhbiynmm ef eguqyj

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On Wed, 2003-12-24 at 07:56, Joel Soete wrote:
> Hmm I don't see any follow up but i just read in "post-halloween-2.6.txt"
> (Reporting bugs. section) that
> [snip]
>      SCSI      - linux-scsi@vger.kernel.org
> [snip]

The SATA maintainer (Jeff Garzik) has already applied this patch.

James




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... especially the spam filters ...

best,
Herbert



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<html>
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#FFFFFF" text=3D"#EEEEEE" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF0000" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#000000" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FF0000" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FF00FF" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>

</body>
</html>ofjygefcugrd
myb zruciwx siz 
ac ahyjtoyyqaayvaoujrkl bsqm  
lux dro  p 
ai zl

--5.C26CBBA0D_C--



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Subject: [parisc-linux] Beautiful faces despite their age ! g
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<html>
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#FFFFFF" text=3D"#EEEEEE" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF0000" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#000000" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FF0000" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FF00FF" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>

</body>
</html>rmaaeu ogmdvrhwzglxlna mqg nueqdgxqjp i   i dsh
 vthq mcsft mxupxdep uhyuwmx
dej nyjombwhph 

--81_ABD0A29_.4..C4--



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<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
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<body bgcolor=3D"#FFFFFF" text=3D"#EEEEEE" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF0000" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#000000" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FF0000" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#FF00FF" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>

</body>
</html>gdcalmiv p ztvih  zt lbsttlitg
xwcu  a t j ewg 

--3C4FCE3._2_CB.0_FBC90F62--



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 ></body>hhji jtnuzuyg nalivnxq  s jfsvqcwwokhc dclbavcumbkivvp

--85DC77CC4EECDD070.._B--



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<html>Restore your beauty and strength! tmxtzyoawpny 
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#ffffff" text=3D"#ffffff" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF0000" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#000000" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FF0000" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#0000ff" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>
ryiwhzrhyvufzji
g gkqamyj  harc
</body>
</html>
kkage ac
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Subject: [parisc-linux] Stunning at 50!! you can be too! je p wgpnloijx
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<html>Stunning at 50!! you can be too! je p wgpnloijx 
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#ffffff" text=3D"#ffffff" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF0000" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#000000" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FF0000" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#0000ff" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>
wlzbnbgpxrqkp txgsqflzeugt
</body>
</html>
y  o avdjp sdfdobgqqaovmum  xezz hin yjol 

--83D9D3DD__F--



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<html>Feel fantastic look incredible ! g az wdoon
<head>
<title>Untitled Document</title>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859=
-1">
</head>

<body bgcolor=3D"#ffffff" text=3D"#ffffff" link=3D"#00FF00" vlink=3D"#00FF=
00" alink=3D"#00FF00">
<center><h3><font color=3D"#FF0000" face=3D"verdana">Bob Hope, JFK, Marily=
n Monroe, Wayne Newton, Dick Clark, <br>
    Queen Elizabeth, George Burns, Cher, Rod Stewart <br>
     Celebrities, Politicians, Athletes, and even Doctors</font></h3></cen=
ter><center><h5><font color=3D"#000000" face=3D"verdana">Have used HGH wit=
h great success to be the best they could possibly be.<br>HGH is recognize=
d around the world as the<br> "hormone to replace"<br> to combat the adver=
se affects of aging.<br>It is a documented truth.<br>  Celebrities and pol=
iticians have used, and ARE USING,,<Br> HGH <br> to prolong their  minds,<=
br> their creative abilities, and  to prolong healthy lives.<br>HGH has be=
en proven to be "solely responsible" in the maintenance of their youthful<=
br>"movie star good looks" decades beyond those that have yet to discover =
HGH ! <br><br>Ever wonder how certain celebrities manage to look so young =
and stay 
    so fit at their age??</font></h5>
</center><center><h3><font color=3D"#FF0000" face=3D"verdana">HGH is the g=
uaranteed answer !<br>With a 100% Money Back Guarantee !</font></h3></cent=
er><br><center><H4><font color=3D"#0000ff" face=3D"verdana"><a href=3D"htt=
p://www.fisha.biz/hgh/?buster">Now available and very much affordable for =
you !<br>Learn More Right Here</a></font></h4></center>
eof  iugiklboddjtcikudpdzqzmoecs f

oza wqkpvld  bkn tw
 y jk
gf dgjc
</body>
</html>
ovj qqbfhl
c
razhm cho

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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] printk cleanup
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Hi all,

May I sugest following printk changes:
=========><=========
diff -Naur linux-2.6.0-pa5/arch/parisc/kernel/pci-dma.c linux-2.6.0-pa5.new/arch/parisc/kernel/pci-dma.c
--- linux-2.6.0-pa5/arch/parisc/kernel/pci-dma.c	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/arch/parisc/kernel/pci-dma.c	2003-12-27 17:51:39.000000000 +0100
@@ -261,11 +261,13 @@
  	} else if(pages_needed <= 32) {
  		PCXL_FIND_FREE_MAPPING(res_idx, mask, 32);
  	} else {
-		panic(__FILE__ ": pcxl_alloc_range() Too many pages to map.\n");
+		panic("%s: pcxl_alloc_range() Too many pages to map.\n",
+		      __FILE__);
  	}

  	dump_resmap();
-	panic(__FILE__ ": pcxl_alloc_range() out of dma mapping resources\n");
+	panic("%s: pcxl_alloc_range() out of dma mapping resources\n",
+	      __FILE__);
  	
  resource_found:
  	
@@ -319,7 +321,8 @@
  	} else if(pages_mapped <= 32) {
  		PCXL_FREE_MAPPINGS(res_idx, mask, 32);
  	} else {
-		panic(__FILE__ ": pcxl_free_range() Too many pages to unmap.\n");
+		panic("%s: pcxl_free_range() Too many pages to unmap.\n",
+		      __FILE__);
  	}
  	
  	pcxl_used_pages -= (pages_mapped ? pages_mapped : 1);
diff -Naur linux-2.6.0-pa5/arch/parisc/math-emu/decode_exc.c linux-2.6.0-pa5.new/arch/parisc/math-emu/decode_exc.c
--- linux-2.6.0-pa5/arch/parisc/math-emu/decode_exc.c	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/arch/parisc/math-emu/decode_exc.c	2003-12-27 16:47:42.000000000 +0100
@@ -347,7 +347,7 @@
  		return SIGNALCODE(SIGFPE, FPE_FLTRES);
  	  default:
  		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
-		printk(__FILE__ "(%d) Unknown FPU exception 0x%x\n",
+		printk("%s(%d) Unknown FPU exception 0x%x\n", __FILE__,
  			__LINE__, Excp_type(exception_index));
  		return SIGNALCODE(SIGILL, ILL_COPROC);
  	  case NOEXCEPTION:	/* no exception */
diff -Naur linux-2.6.0-pa5/drivers/parisc/ccio-dma.c linux-2.6.0-pa5.new/drivers/parisc/ccio-dma.c
--- linux-2.6.0-pa5/drivers/parisc/ccio-dma.c	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/drivers/parisc/ccio-dma.c	2003-12-27 16:55:57.000000000 +0100
@@ -364,11 +364,11 @@
  		CCIO_FIND_FREE_MAPPING(ioc, res_idx, mask, 64);
  #endif
  	} else {
-		panic(__FILE__ ": %s() Too many pages to map. pages_needed: %ld\n",
-		      __FUNCTION__, pages_needed);
+		panic("%s: %s() Too many pages to map. pages_needed: %ld\n",
+		       __FILE__,  __FUNCTION__, pages_needed);
  	}

-	panic(__FILE__ ": %s() I/O MMU is out of mapping resources.\n",
+	panic("%s: %s() I/O MMU is out of mapping resources.\n", __FILE__,
  	      __FUNCTION__);
  	
  resource_found:
@@ -441,7 +441,7 @@
  		CCIO_FREE_MAPPINGS(ioc, res_idx, mask, 64);
  #endif
  	} else {
-		panic(__FILE__ ":%s() Too many pages to unmap.\n",
+		panic("%s:%s() Too many pages to unmap.\n", __FILE__,
  		      __FUNCTION__);
  	}
  }
@@ -1447,7 +1447,8 @@
  	ioc->pdir_base = (u64 *)__get_free_pages(GFP_KERNEL,
  						 get_order(ioc->pdir_size));
  	if(NULL == ioc->pdir_base) {
-		panic(__FILE__ ":%s() could not allocate I/O Page Table\n", __FUNCTION__);
+		panic("%s:%s() could not allocate I/O Page Table\n", __FILE__,
+		      __FUNCTION__);
  	}
  	memset(ioc->pdir_base, 0, ioc->pdir_size);

@@ -1461,7 +1462,8 @@
  	ioc->res_map = (u8 *)__get_free_pages(GFP_KERNEL,
  					      get_order(ioc->res_size));
  	if(NULL == ioc->res_map) {
-		panic(__FILE__ ":%s() could not allocate resource map\n", __FUNCTION__);
+		panic("%s:%s() could not allocate resource map\n", __FILE__,
+		      __FUNCTION__);
  	}
  	memset(ioc->res_map, 0, ioc->res_size);

diff -Naur linux-2.6.0-pa5/drivers/parisc/sba_iommu.c linux-2.6.0-pa5.new/drivers/parisc/sba_iommu.c
--- linux-2.6.0-pa5/drivers/parisc/sba_iommu.c	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/drivers/parisc/sba_iommu.c	2003-12-27 16:57:40.000000000 +0100
@@ -579,7 +579,8 @@
  	if (pide >= (ioc->res_size << 3)) {
  		pide = sba_search_bitmap(ioc, pages_needed);
  		if (pide >= (ioc->res_size << 3))
-			panic(__FILE__ ": I/O MMU @ %lx is out of mapping resources\n", ioc->ioc_hpa);
+			panic("%s: I/O MMU @ %lx is out of mapping resources\n",
+			      __FILE__, ioc->ioc_hpa);
  	}

  #ifdef ASSERT_PDIR_SANITY
@@ -1781,7 +1782,8 @@

  		if (NULL == sba_dev->ioc[i].res_map)
  		{
-			panic(__FILE__ ":%s() could not allocate resource map\n", __FUNCTION__ );
+			panic("%s:%s() could not allocate resource map\n",
+			      __FILE__, __FUNCTION__ );
  		}

  		memset(sba_dev->ioc[i].res_map, 0, res_size);
diff -Naur linux-2.6.0-pa5/include/asm-parisc/pci.h linux-2.6.0-pa5.new/include/asm-parisc/pci.h
--- linux-2.6.0-pa5/include/asm-parisc/pci.h	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/include/asm-parisc/pci.h	2003-12-27 18:12:53.303140000 +0100
@@ -29,7 +29,8 @@
  #ifdef PCI_DEBUG
  #define ASSERT(expr) \
  	if(!(expr)) { \
-		printk( "\n" __FILE__ ":%d: Assertion " #expr " failed!\n",__LINE__); \
+		printk("\n%s:%d: Assertion " #expr " failed!\n", __FILE__,
+		       __LINE__); \
  		panic(#expr); \
  	}
  #else
=========><=========

hth,
	Joel

PS: I also notice some printk("\n" KERNEL_... "...");
would it not be better to change in printk(KERNEL_... "\n...");

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diff -Naur linux-2.6.0-pa5/arch/parisc/kernel/pci-dma.c linux-2.6.0-pa5.new/arch/parisc/kernel/pci-dma.c
--- linux-2.6.0-pa5/arch/parisc/kernel/pci-dma.c	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/arch/parisc/kernel/pci-dma.c	2003-12-27 17:51:39.000000000 +0100
@@ -261,11 +261,13 @@
 	} else if(pages_needed <= 32) {
 		PCXL_FIND_FREE_MAPPING(res_idx, mask, 32);
 	} else {
-		panic(__FILE__ ": pcxl_alloc_range() Too many pages to map.\n");
+		panic("%s: pcxl_alloc_range() Too many pages to map.\n",
+		      __FILE__);
 	}
 
 	dump_resmap();
-	panic(__FILE__ ": pcxl_alloc_range() out of dma mapping resources\n");
+	panic("%s: pcxl_alloc_range() out of dma mapping resources\n",
+	      __FILE__);
 	
 resource_found:
 	
@@ -319,7 +321,8 @@
 	} else if(pages_mapped <= 32) {
 		PCXL_FREE_MAPPINGS(res_idx, mask, 32);
 	} else {
-		panic(__FILE__ ": pcxl_free_range() Too many pages to unmap.\n");
+		panic("%s: pcxl_free_range() Too many pages to unmap.\n",
+		      __FILE__);
 	}
 	
 	pcxl_used_pages -= (pages_mapped ? pages_mapped : 1);
diff -Naur linux-2.6.0-pa5/arch/parisc/math-emu/decode_exc.c linux-2.6.0-pa5.new/arch/parisc/math-emu/decode_exc.c
--- linux-2.6.0-pa5/arch/parisc/math-emu/decode_exc.c	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/arch/parisc/math-emu/decode_exc.c	2003-12-27 16:47:42.000000000 +0100
@@ -347,7 +347,7 @@
 		return SIGNALCODE(SIGFPE, FPE_FLTRES);
 	  default:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
-		printk(__FILE__ "(%d) Unknown FPU exception 0x%x\n",
+		printk("%s(%d) Unknown FPU exception 0x%x\n", __FILE__,
 			__LINE__, Excp_type(exception_index));
 		return SIGNALCODE(SIGILL, ILL_COPROC);
 	  case NOEXCEPTION:	/* no exception */
diff -Naur linux-2.6.0-pa5/drivers/parisc/ccio-dma.c linux-2.6.0-pa5.new/drivers/parisc/ccio-dma.c
--- linux-2.6.0-pa5/drivers/parisc/ccio-dma.c	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/drivers/parisc/ccio-dma.c	2003-12-27 16:55:57.000000000 +0100
@@ -364,11 +364,11 @@
 		CCIO_FIND_FREE_MAPPING(ioc, res_idx, mask, 64);
 #endif
 	} else {
-		panic(__FILE__ ": %s() Too many pages to map. pages_needed: %ld\n", 
-		      __FUNCTION__, pages_needed);
+		panic("%s: %s() Too many pages to map. pages_needed: %ld\n",
+		       __FILE__,  __FUNCTION__, pages_needed);
 	}
 
-	panic(__FILE__ ": %s() I/O MMU is out of mapping resources.\n", 
+	panic("%s: %s() I/O MMU is out of mapping resources.\n", __FILE__,
 	      __FUNCTION__);
 	
 resource_found:
@@ -441,7 +441,7 @@
 		CCIO_FREE_MAPPINGS(ioc, res_idx, mask, 64);
 #endif
 	} else {
-		panic(__FILE__ ":%s() Too many pages to unmap.\n", 
+		panic("%s:%s() Too many pages to unmap.\n", __FILE__,
 		      __FUNCTION__);
 	}
 }
@@ -1447,7 +1447,8 @@
 	ioc->pdir_base = (u64 *)__get_free_pages(GFP_KERNEL, 
 						 get_order(ioc->pdir_size));
 	if(NULL == ioc->pdir_base) {
-		panic(__FILE__ ":%s() could not allocate I/O Page Table\n", __FUNCTION__);
+		panic("%s:%s() could not allocate I/O Page Table\n", __FILE__,
+		      __FUNCTION__);
 	}
 	memset(ioc->pdir_base, 0, ioc->pdir_size);
 
@@ -1461,7 +1462,8 @@
 	ioc->res_map = (u8 *)__get_free_pages(GFP_KERNEL, 
 					      get_order(ioc->res_size));
 	if(NULL == ioc->res_map) {
-		panic(__FILE__ ":%s() could not allocate resource map\n", __FUNCTION__);
+		panic("%s:%s() could not allocate resource map\n", __FILE__,
+		      __FUNCTION__);
 	}
 	memset(ioc->res_map, 0, ioc->res_size);
 
diff -Naur linux-2.6.0-pa5/drivers/parisc/sba_iommu.c linux-2.6.0-pa5.new/drivers/parisc/sba_iommu.c
--- linux-2.6.0-pa5/drivers/parisc/sba_iommu.c	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/drivers/parisc/sba_iommu.c	2003-12-27 16:57:40.000000000 +0100
@@ -579,7 +579,8 @@
 	if (pide >= (ioc->res_size << 3)) {
 		pide = sba_search_bitmap(ioc, pages_needed);
 		if (pide >= (ioc->res_size << 3))
-			panic(__FILE__ ": I/O MMU @ %lx is out of mapping resources\n", ioc->ioc_hpa);
+			panic("%s: I/O MMU @ %lx is out of mapping resources\n",
+			      __FILE__, ioc->ioc_hpa);
 	}
 
 #ifdef ASSERT_PDIR_SANITY
@@ -1781,7 +1782,8 @@
 
 		if (NULL == sba_dev->ioc[i].res_map)
 		{
-			panic(__FILE__ ":%s() could not allocate resource map\n", __FUNCTION__ );
+			panic("%s:%s() could not allocate resource map\n",
+			      __FILE__, __FUNCTION__ );
 		}
 
 		memset(sba_dev->ioc[i].res_map, 0, res_size);
diff -Naur linux-2.6.0-pa5/include/asm-parisc/pci.h linux-2.6.0-pa5.new/include/asm-parisc/pci.h
--- linux-2.6.0-pa5/include/asm-parisc/pci.h	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/include/asm-parisc/pci.h	2003-12-27 18:12:53.303140000 +0100
@@ -29,7 +29,8 @@
 #ifdef PCI_DEBUG
 #define ASSERT(expr) \
 	if(!(expr)) { \
-		printk( "\n" __FILE__ ":%d: Assertion " #expr " failed!\n",__LINE__); \
+		printk("\n%s:%d: Assertion " #expr " failed!\n", __FILE__,
+		       __LINE__); \
 		panic(#expr); \
 	}
 #else

--------------000306000706000404010004--



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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] printk cleanup
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This is a multi-part message in MIME format.
--------------040408080701060004060200
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

oops sory,

Joel Soete wrote:
> Hi all,
> 
> May I sugest following printk changes:
> =========><=========
> diff -Naur linux-2.6.0-pa5/include/asm-parisc/pci.h 
> linux-2.6.0-pa5.new/include/asm-parisc/pci.h
> --- linux-2.6.0-pa5/include/asm-parisc/pci.h    2003-12-27 
> 16:36:55.000000000 +0100
> +++ linux-2.6.0-pa5.new/include/asm-parisc/pci.h    2003-12-27 
> 18:12:53.303140000 +0100
> @@ -29,7 +29,8 @@
>  #ifdef PCI_DEBUG
>  #define ASSERT(expr) \
>      if(!(expr)) { \
> -        printk( "\n" __FILE__ ":%d: Assertion " #expr " 
> failed!\n",__LINE__); \
> +        printk("\n%s:%d: Assertion " #expr " failed!\n", __FILE__,
there is a typo                                                      ^^
should be better read                                       __FILE__, \
> +               __LINE__); \
>          panic(#expr); \
>      }
>  #else
> =========><=========
> 
Appologies,
J.

--------------040408080701060004060200
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diff -Naur linux-2.6.0-pa5/arch/parisc/kernel/pci-dma.c linux-2.6.0-pa5.new/arch/parisc/kernel/pci-dma.c
--- linux-2.6.0-pa5/arch/parisc/kernel/pci-dma.c	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/arch/parisc/kernel/pci-dma.c	2003-12-27 17:51:39.000000000 +0100
@@ -261,11 +261,13 @@
 	} else if(pages_needed <= 32) {
 		PCXL_FIND_FREE_MAPPING(res_idx, mask, 32);
 	} else {
-		panic(__FILE__ ": pcxl_alloc_range() Too many pages to map.\n");
+		panic("%s: pcxl_alloc_range() Too many pages to map.\n",
+		      __FILE__);
 	}
 
 	dump_resmap();
-	panic(__FILE__ ": pcxl_alloc_range() out of dma mapping resources\n");
+	panic("%s: pcxl_alloc_range() out of dma mapping resources\n",
+	      __FILE__);
 	
 resource_found:
 	
@@ -319,7 +321,8 @@
 	} else if(pages_mapped <= 32) {
 		PCXL_FREE_MAPPINGS(res_idx, mask, 32);
 	} else {
-		panic(__FILE__ ": pcxl_free_range() Too many pages to unmap.\n");
+		panic("%s: pcxl_free_range() Too many pages to unmap.\n",
+		      __FILE__);
 	}
 	
 	pcxl_used_pages -= (pages_mapped ? pages_mapped : 1);
diff -Naur linux-2.6.0-pa5/arch/parisc/math-emu/decode_exc.c linux-2.6.0-pa5.new/arch/parisc/math-emu/decode_exc.c
--- linux-2.6.0-pa5/arch/parisc/math-emu/decode_exc.c	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/arch/parisc/math-emu/decode_exc.c	2003-12-27 16:47:42.000000000 +0100
@@ -347,7 +347,7 @@
 		return SIGNALCODE(SIGFPE, FPE_FLTRES);
 	  default:
 		update_trap_counts(Fpu_register, aflags, bflags, trap_counts);
-		printk(__FILE__ "(%d) Unknown FPU exception 0x%x\n",
+		printk("%s(%d) Unknown FPU exception 0x%x\n", __FILE__,
 			__LINE__, Excp_type(exception_index));
 		return SIGNALCODE(SIGILL, ILL_COPROC);
 	  case NOEXCEPTION:	/* no exception */
diff -Naur linux-2.6.0-pa5/drivers/parisc/ccio-dma.c linux-2.6.0-pa5.new/drivers/parisc/ccio-dma.c
--- linux-2.6.0-pa5/drivers/parisc/ccio-dma.c	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/drivers/parisc/ccio-dma.c	2003-12-27 16:55:57.000000000 +0100
@@ -364,11 +364,11 @@
 		CCIO_FIND_FREE_MAPPING(ioc, res_idx, mask, 64);
 #endif
 	} else {
-		panic(__FILE__ ": %s() Too many pages to map. pages_needed: %ld\n", 
-		      __FUNCTION__, pages_needed);
+		panic("%s: %s() Too many pages to map. pages_needed: %ld\n",
+		       __FILE__,  __FUNCTION__, pages_needed);
 	}
 
-	panic(__FILE__ ": %s() I/O MMU is out of mapping resources.\n", 
+	panic("%s: %s() I/O MMU is out of mapping resources.\n", __FILE__,
 	      __FUNCTION__);
 	
 resource_found:
@@ -441,7 +441,7 @@
 		CCIO_FREE_MAPPINGS(ioc, res_idx, mask, 64);
 #endif
 	} else {
-		panic(__FILE__ ":%s() Too many pages to unmap.\n", 
+		panic("%s:%s() Too many pages to unmap.\n", __FILE__,
 		      __FUNCTION__);
 	}
 }
@@ -1447,7 +1447,8 @@
 	ioc->pdir_base = (u64 *)__get_free_pages(GFP_KERNEL, 
 						 get_order(ioc->pdir_size));
 	if(NULL == ioc->pdir_base) {
-		panic(__FILE__ ":%s() could not allocate I/O Page Table\n", __FUNCTION__);
+		panic("%s:%s() could not allocate I/O Page Table\n", __FILE__,
+		      __FUNCTION__);
 	}
 	memset(ioc->pdir_base, 0, ioc->pdir_size);
 
@@ -1461,7 +1462,8 @@
 	ioc->res_map = (u8 *)__get_free_pages(GFP_KERNEL, 
 					      get_order(ioc->res_size));
 	if(NULL == ioc->res_map) {
-		panic(__FILE__ ":%s() could not allocate resource map\n", __FUNCTION__);
+		panic("%s:%s() could not allocate resource map\n", __FILE__,
+		      __FUNCTION__);
 	}
 	memset(ioc->res_map, 0, ioc->res_size);
 
diff -Naur linux-2.6.0-pa5/drivers/parisc/sba_iommu.c linux-2.6.0-pa5.new/drivers/parisc/sba_iommu.c
--- linux-2.6.0-pa5/drivers/parisc/sba_iommu.c	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/drivers/parisc/sba_iommu.c	2003-12-27 16:57:40.000000000 +0100
@@ -579,7 +579,8 @@
 	if (pide >= (ioc->res_size << 3)) {
 		pide = sba_search_bitmap(ioc, pages_needed);
 		if (pide >= (ioc->res_size << 3))
-			panic(__FILE__ ": I/O MMU @ %lx is out of mapping resources\n", ioc->ioc_hpa);
+			panic("%s: I/O MMU @ %lx is out of mapping resources\n",
+			      __FILE__, ioc->ioc_hpa);
 	}
 
 #ifdef ASSERT_PDIR_SANITY
@@ -1781,7 +1782,8 @@
 
 		if (NULL == sba_dev->ioc[i].res_map)
 		{
-			panic(__FILE__ ":%s() could not allocate resource map\n", __FUNCTION__ );
+			panic("%s:%s() could not allocate resource map\n",
+			      __FILE__, __FUNCTION__ );
 		}
 
 		memset(sba_dev->ioc[i].res_map, 0, res_size);
diff -Naur linux-2.6.0-pa5/include/asm-parisc/pci.h linux-2.6.0-pa5.new/include/asm-parisc/pci.h
--- linux-2.6.0-pa5/include/asm-parisc/pci.h	2003-12-27 16:36:55.000000000 +0100
+++ linux-2.6.0-pa5.new/include/asm-parisc/pci.h	2003-12-27 18:55:56.233140000 +0100
@@ -29,7 +29,8 @@
 #ifdef PCI_DEBUG
 #define ASSERT(expr) \
 	if(!(expr)) { \
-		printk( "\n" __FILE__ ":%d: Assertion " #expr " failed!\n",__LINE__); \
+		printk("\n%s:%d: Assertion " #expr " failed!\n", __FILE__, \
+		       __LINE__); \
 		panic(#expr); \
 	}
 #else

--------------040408080701060004060200--



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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable to
 open an initial console."
Date: Sat, 27 Dec 2003 21:00:49 +0000
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Hi all,

I try to see if pdc_console could be operational on my c110 with kernel 2.6.0-pa5.

So I uncheck serial_mux and check pdc_console with make menuconfig (edit also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
Then I create the special file "mknod /dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab

(I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)

But no way to make it works?

Linux version 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease) 3FP[0] enabled: Rev 1 Model 11 
                               The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0avers  0000000d
CPUID vers 11 rev 13 (0x0000016d)
model 9000/777/C110
Total Memory: 128 Mb
[snip]
Soft power switch enabled, polling @ 0xf0140000.
Console: switching to colour frame buffer device 128x48
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
[snip]
Freeing unused kernel memory: 504k freed
Warning: unable to open an initial console.
Adding 131832k swap on /dev/md1.  Priority:-1 extents:1
EXT3 FS on md2, internal journal
[snip]
....eth0: link ok.

Debian GNU/Linux testing/unstable hpalin ttyS0

hpalin login:

In th syslog I also notice:
[snip]
Dec 27 21:45:03 hpalin init: Id "TB0" respawning too fast: disabled for 5 minutes
Dec 27 21:52:15 hpalin init: Id "TB0" respawning too fast: disabled for 5 minutes
[snip]

And don't find any such device with:
# cat /proc/devices
Character devices:
   1 mem
   2 pty
   3 ttyp
   4 /dev/vc/0
   4 tty
   4 ttyS
   5 /dev/tty
   5 /dev/console
   5 /dev/ptmx
   6 lp
   7 vcs
   9 st
  10 misc
  13 input
  14 sound
  21 sg
  29 fb
  36 netlink
128 ptm
136 pts
180 usb
[snip]

Any idea? (what should I do wrongly?)

Thanks in advance for attention,
	Joel



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Subject: Re: [parisc-linux] printk cleanup
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On Saturday 27 December 2003 18:46, Joel Soete wrote:
> PS: I also notice some printk("\n" KERNEL_... "...");
> would it not be better to change in printk(KERNEL_... "\n...");

Mostly: No.
The "\n" is there to finish some previous printk()s and
the KERNEL_xx in the middle of the strings is needed 
after a \n to put the printed string in the right context
(e.g. this ensures the text to be prefixed correctly in
the kernel syslog).

Helge


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Subject: Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable to
	open an initial console."
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On Saturday 27 December 2003 22:00, Joel Soete wrote:
> I try to see if pdc_console could be operational on my c110 with kernel 2.6.0-pa5.
> 
> So I uncheck serial_mux and check pdc_console with make menuconfig (edit also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
> Then I create the special file "mknod /dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab
> 
> (I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)
> 
> But no way to make it works?
> 
> Linux version 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease) 3FP[0] enabled: Rev 1 Model 11 
>                                The 32-bit Kernel has started...
> Initialized PDC Console for debugging.
> Determining PDC firmware type: System Map.
> model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0avers  0000000d
> CPUID vers 11 rev 13 (0x0000016d)
> model 9000/777/C110
> Total Memory: 128 Mb
> [snip]
> Soft power switch enabled, polling @ 0xf0140000.
> Console: switching to colour frame buffer device 128x48
> pty: 256 Unix98 ptys configured
> lp: driver loaded but no devices found
> Generic RTC Driver v1.07
> Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
> ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
> ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A

Your machine has standard serial ports. So why do you want to
switch on serial_mux stuff when it's not needed (and not possible
since the device is not present in your machine) ?

Helge


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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 deller
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On Mon, 2003-12-22 at 15:35, Helge Deller wrote:
> - add special case for VIS EG in RDI Precisionbook Laptop - stifb does
> not yet support the framebuffer on the internal flatscreen display, so
> disable stifb support on this special device for now.

This change has disabled the framebuffer on my B180.  Now it prints

STI GSC/PCI core graphics driver Version 0.9a
STI word mode ROM at f0011000, hpa at f8000000
STI id 2d08c0a7-9a02587, conforms to spec rev. 8.07
STI device: INTERNAL_EG_1024
stifb: framebuffer support on internal RDI precisionbook flatscreen not
yet supported.

On boot.

James




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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 deller
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On Sunday 28 December 2003 16:35, James Bottomley wrote:
> On Mon, 2003-12-22 at 15:35, Helge Deller wrote:
> > - add special case for VIS EG in RDI Precisionbook Laptop - stifb does
> > not yet support the framebuffer on the internal flatscreen display, so
> > disable stifb support on this special device for now.
> 
> This change has disabled the framebuffer on my B180.  Now it prints
> 
> STI GSC/PCI core graphics driver Version 0.9a
> STI word mode ROM at f0011000, hpa at f8000000
> STI id 2d08c0a7-9a02587, conforms to spec rev. 8.07
> STI device: INTERNAL_EG_1024
> stifb: framebuffer support on internal RDI precisionbook flatscreen not
> yet supported.
> 
> On boot.

Please update again. I reverted that change some minutes after my 
first commit.

Helge


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On Sun, 2003-12-28 at 11:01, Helge Deller wrote:
> Please update again. I reverted that change some minutes after my 
> first commit.

Ah, OK, you forgot to rev the -paX number...your reversion is in the new
-pa6 that just came out.

James




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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable
	to open an initial console."
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Helge Deller wrote:
> On Saturday 27 December 2003 22:00, Joel Soete wrote:
> 
>>I try to see if pdc_console could be operational on my c110 with kernel 2.6.0-pa5.
>>
>>So I uncheck serial_mux and check pdc_console with make menuconfig (edit also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
>>Then I create the special file "mknod /dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab
>>
>>(I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)
>>
>>But no way to make it works?
>>
>>Linux version 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease) 3FP[0] enabled: Rev 1 Model 11 
>>                               The 32-bit Kernel has started...
>>Initialized PDC Console for debugging.
>>Determining PDC firmware type: System Map.
>>model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0avers  0000000d
>>CPUID vers 11 rev 13 (0x0000016d)
>>model 9000/777/C110
>>Total Memory: 128 Mb
>>[snip]
>>Soft power switch enabled, polling @ 0xf0140000.
>>Console: switching to colour frame buffer device 128x48
>>pty: 256 Unix98 ptys configured
>>lp: driver loaded but no devices found
>>Generic RTC Driver v1.07
>>Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
>>ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
>>ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
> 
> 
> Your machine has standard serial ports. So why do you want to
> switch on serial_mux stuff when it's not needed (and not possible
> since the device is not present in your machine) ?
> 
> Helge
> 
Helge,

Sorry I don't understand: where do you read that I switch on serial mux?

My goal is to test pdc_console mainly for EARLY_BOOTUP_DEBUG facility (for later b2k 64bit kernel pb).
Also afaik otc I have to switch off serial mux (well i say uncheck):
drivers/serial/Kconfig
[snip]
config PDC_CONSOLE
         bool "PDC software console support"
         depends on PARISC && !SERIAL_MUX && VT
         default n
[snip]?

Thanks in advance for more info,
	Joel



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Subject: Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable to
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On Sunday 28 December 2003 19:02, Joel Soete wrote:
> My goal is to test pdc_console mainly for EARLY_BOOTUP_DEBUG facility (for later b2k 64bit kernel pb).
> Also afaik otc I have to switch off serial mux (well i say uncheck):
> drivers/serial/Kconfig
> [snip]
> config PDC_CONSOLE
>          bool "PDC software console support"
>          depends on PARISC && !SERIAL_MUX && VT
>          default n
> [snip]?

To debug such problems I often just turn on EARLY_BOOTUP_DEBUG 
in arch/parisc/kernel/pdc_cons.c, line 15:

/* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems.
 * On production kernels EARLY_BOOTUP_DEBUG should be undefined. */
#define EARLY_BOOTUP_DEBUG

HTH,
Helge


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Subject: [parisc-linux] debian hppa touch fails to set atime and mtime
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219458,

hppa does not support utimes, it supports utime. During the last
coreutils build it seems that configure was confused and thought hppa
*had* utimes, but it does not.

http://buildd.debian.org/fetch.php?&pkg=coreutils&ver=5.0.91-2&arch=hppa&stamp=1065315205&file=log&as=raw

--- checkdd.log 2003-12-28 20:45:43.000000000 -0500
+++ check.log   2003-12-28 20:44:08.000000000 -0500
@@ -7,8 +7,7 @@
 checking host system type... hppa-unknown-linux-gnu
 checking for a BSD-compatible install... /usr/bin/install -c
 checking whether build environment is sane... yes
-checking for gawk... no
-checking for mawk... mawk
+checking for gawk... gawk
 checking whether make sets $(MAKE)... yes
 checking for perl5.003 or newer... yes
 checking for hppa-linux-gcc... hppa-linux-gcc
@@ -163,7 +162,7 @@
 checking for library containing opendir... none required
 checking for struct stat.st_blocks... yes
 checking whether stat file-mode macros are broken... no
-checking for nanoseconds member of struct stat.st_mtim... no
+checking for nanoseconds member of struct stat.st_mtim... tv_nsec
 checking for st_dm_mode in struct stat... no
 checking for uid_t in sys/types.h... yes
 checking type of array argument to getgroups... gid_t
@@ -452,9 +451,9 @@
 checking for strcasecmp... yes
 checking for strncasecmp... yes
 checking for struct timespec... yes
-checking for nanoseconds member of struct stat.st_mtim... (cached) no
+checking for nanoseconds member of struct stat.st_mtim... (cached)
tv_nsec
 checking whether nanosleep is declared... (cached) yes
-checking determine whether the utimes function works... yes
+checking determine whether the utimes function works... no
 checking for stdlib.h... (cached) yes
 checking for GNU libc compatible malloc... yes
 checking for stdlib.h... (cached) yes

My local system detects gawk, finds a nanosecond member for stat, but
notices that utimes does *not* work under hppa, and instead uses utime.
The reason for the erroneous detection can only be confirmed by looking
at the config.log.

I tested a coreutils rebuild and it works fine.

Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3.2/specs
Configured with: ../src/configure -v
--enable-languages=c,c++,f77,pascal,objc,ada,treelang --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info
--with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared
--with-system-zlib --enable-nls --without-included-gettext
--enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu
--enable-debug --enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.3.2 (Debian)

GNU ld version 2.14.90.0.7 20031029 Debian GNU/Linux

Linux firin 2.4.23-pa2 #5 Mon Dec 8 20:44:10 EST 2003 parisc64 GNU/Linux

I suggest moving this to coreutils and have them rebuild?

Cheers,
Carlos.



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Subject: [parisc-linux] Fix for uninitialised variable in new seq_file code
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The compiler justly complains in this:

        unsigned int regnr = *(loff_t *) v, i;

        if (regnr == 0) {
                seq_puts(p, "     ");
#ifdef CONFIG_SMP
                for (i = 0; i < NR_CPUS; i++)
#endif
                        seq_printf(p, "      CPU%02d ", i);


That i is uninitialised if CONFIG_SMP is not set.

James

===== irq.c 1.20 vs edited =====
--- 1.20/arch/parisc/kernel/irq.c	Mon Dec 29 15:37:39 2003
+++ edited/irq.c	Tue Dec 30 14:12:43 2003
@@ -215,7 +215,7 @@
 int show_interrupts(struct seq_file *p, void *v)
 {
 #ifdef CONFIG_PROC_FS
-	unsigned int regnr = *(loff_t *) v, i;
+	unsigned int regnr = *(loff_t *) v, i = 0;
 
 	if (regnr == 0) {
 		seq_puts(p, "     ");



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James Bottomley <James.Bottomley@SteelEye.com> wrote:
>
> --- 1.20/arch/parisc/kernel/irq.c	Mon Dec 29 15:37:39 2003
> +++ edited/irq.c	Tue Dec 30 14:12:43 2003
> @@ -215,7 +215,7 @@
>  int show_interrupts(struct seq_file *p, void *v)
>  {
>  #ifdef CONFIG_PROC_FS
> -	unsigned int regnr = *(loff_t *) v, i;
> +	unsigned int regnr = *(loff_t *) v, i = 0;
>  
>  	if (regnr == 0) {
>  		seq_puts(p, "     ");

Thanks, I'll add that to today's batch.


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Did this work before? :)

firin:/# LD_PROFILE=libc.so.6 ls
Segmentation fault

c.



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Carlos,

no ?

I test it on testdrive sep170 with libc release 2.2.5-11.5 and  binutils release 2.12.90.0.1-4 (I trust purely Debian woody 3.0)

hth,
	Joel

Carlos O'Donell wrote:
> Did this work before? :)
> 
> firin:/# LD_PROFILE=libc.so.6 ls
> Segmentation fault
> 
> c.
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.6.0-pa7 and raid1 boot disk not clean do HPMC?
Date: Wed, 31 Dec 2003 12:52:09 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:20526

Hi all,

After a panic of my c110 at boot time, I reboot it with kernel 2.6.0-pa7 (build with make defconfig excepted that I try to use 
pdc_console in place of serial_mux) and I got a HPMC:
[snip]
md: sda2 has different UUID to sdb6
md: created md3
md: bind<sda6>
md: bind<sdb6>
md: running: <sdb6><sda6>
md: md3: raid array is not clean -- starting background reconstruction
md: delaying resync of md4 until md5 has finished resync (they share one or more physical units)
raid1: raid set md3 active with 2 out of 2 mirrors
md: considering sdb5 ...
md:  adding sdb5 ...
md: sdb3 has different UUID to sdb5
md: sdb2 has different UUID to sdb5
md:  adding sda5 ...
md: sda3 has different UUID to sdb5
md: sda2 has different UUID to sdb5
md: created md2
md: bind<sda5>
md: bind<sdb5>
md: running: <sdb5><sda5>
md: md2: raid array is not clean -- starting background reconstruction
md: delaying resync of md3 until md4 has finished resync (
<4>
Stack Dump:
1037b418:  1037b418 00048308 00000040 ffe01800
1037b408:  ffe01801 ffffffff 00048308 0037b3b8
1037b3f8:  00000000 0037b3b8 00000000 f0055060
1037b3e8:  00000000 0037b3d0 00000000 0037b3c8
1037b3d8:  00000000 00000000 00000000 00000000
1037b3c8:  1037b080 00000001 00000000 0037b390
1037b3b8:  00048308 0037b378 00000000 101064bc
1037b3a8:  00000000 0037b390 00000000 0037b388
1037b398:  00000005 0037b380 00000005 0037b350
1037b388:  f3f80000 ffe01800 ffe01801 f00556fc
1037b378:  00000001 0037b360 00000000 f00556fc
1037b368:  00000000 0037b310 00000000 fff8a000
1037b358:  00000009 00004800 0038a000 0037f000
1037b348:  fffa0000 8f569c40 0007a120 0037b328
1037b338:  00000000 0037b320 00000001 00a00000
1037b328:  0000000a f3fbf000 f3f80000 0037b2e0
1037b318:  fff80000 00000000 f018700c 0037b2b8
1037b308:  f3f80000 0037b2f0 f3f80000 0037b2b8
1037b2f8:  0037b198 0037b2e0 00000000 0037b2a8
1037b2e8:  00000009 0037b2a0 f0186fe3 000f4000
1037b2d8:  10461844 0037b2c0 00000060 0037b2b8
1037b2c8:  3ff2b00b 00000000 00000000 00008000
1037b2b8:  00380334 00000001 0320008a 1010b088
1037b2a8:  00001350 0037b240 00000014 0037b240
1037b298:  0003f003 f0049d58 00000000 0037b270
1037b288:  00000003 0037b268 ffd05000 0037b240
1037b278:  00000000 f00700c0 0006cbf8 0037b1c8
1037b268:  10461698 000f4000 0320008a 0037b160
1037b258:  00008000 f00700c0 00038dfc 00000000
1037b248:  d29c1bf8 0000001f 00000000 00000000
1037b238:  00000000 0006cbf8 0000000b 10215c34
1037b228:  10215c58 00000000 00000000 00000000
1037b218:  00000000 00000000 00000000 00000000
1037b208:  00000000 00000000 00000000 00000000
1037b1f8:  00000000 00000000 00000000 00000000
1037b1e8:  00000000 00000000 00000000 00000000
1037b1d8:  00000000 00000000 00000000 00000000
1037b1c8:  00000000 00000000 00000000 00000000
1037b1b8:  00000000 00000000 00000000 00000000
1037b1a8:  00000000 00000000 00000000 00000000
1037b198:  00000000 00000000 00000000 00000000
1037b188:  00000000 00000000 00000000 00000000
1037b178:  00000000 00000000 00000000 00000000
1037b168:  00000000 00000000 00000000 00000000
1037b158:  00000000 00000000 00000000 00000000
1037b148:  00000000 00000000 00000000 00000000
1037b138:  00000000 00000000 00000000 00000000
1037b128:  00000000 00000000 00000000 00000000
1037b118:  00000000 00000000 00000000 00000000
1037b108:  00000000 08000000 08000000 10218398
1037b0f8:  17bd8480 00000078 00000020 10378010
1037b0e8:  1047e064 00000005 00000028 00000036
1037b0d8:  102182b0 0000000f 00000000 ffd05805
1037b0c8:  00000000 10461010 000f4000 00000061
1037b0b8:  0000003a 10461698 000f4000 10461844
1037b0a8:  00000010 00000060 10465229 1038e810
1037b098:  00002878 00002817 1047e064 1047e064
1037b088:  10218374 fff0bdc0 000cff0f 00000000
1037b078:  00000000 00000000 00000000 001107cc
1037b068:  00000000 00000000 00000000 00000000
1037b058:  00000000 00000000 00000000 00387000
1037b048:  00000000 00000000 00000000 00000000
1037b038:  00000000 00000000 00000000 00000000
1037b028:  00000000 00000000 00000000 00000000
Kernel addresses on the stack:
[<10106320>] parisc_terminate+0x60/0xb8
[<101064bc>] handle_interruption+0x144/0x5b0
[<1010b088>] intr_check_sig+0x0/0xc
[<10215c34>] serial_in+0x38/0x84

High Priority Machine Check (HPMC): Code=1 regs=1037b080 (Addr=00000000)
      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000011001111111100001111 Not tainted
r00-03  00000000 fff0bdc0 10218374 1047e064
r04-07  1047e064 00002817 00002878 1038e810
r08-11  10465229 00000060 00000010 10461844
r12-15  000f4000 10461698 0000003a 00000061
r16-19  000f4000 10461010 00000000 ffd05805
r20-23  00000000 0000000f 102182b0 00000036
r24-27  00000028 00000005 1047e064 10378010
r28-31  00000020 00000078 17bd8480 10218398
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10215c58 10215c34
  IIR: d29c1bf8    ISR: 00000000  IOR: 00038dfc
  CPU:        0   CR30: 17bd8000 CR31: 103d1000
  ORIG_R28: 00000000
  IAOQ[0]: serial_in+0x5c/0x84
  IAOQ[1]: serial_in+0x38/0x84
  RP(r2): serial8250_console_write+0xc4/0x380

any idea?

Thanks again for help and happy new year,
	Joel



From - Thu Nov 08 21:30:31 2018
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [parisc-linux-cvs] palo bame
Date: Thu, 01 Jan 2004 15:43:32 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:20527

This is a multi-part message in MIME format.
--------------090507060504010807030902
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Hi Paul, James,

Joel Soete wrote:
> Hi Paul,
> 
> Nice ;)
> 
> I just noticed a small detail (versus patch Bjoern and I sent in june:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2003-June/020098.html
> http://lists.parisc-linux.org/pipermail/parisc-linux/2003-June/020120.html): 
> 
> 
> before 'goto restart;' you didn't set interactive (I mean 'interactive=1;')
> but for instance we can reach :
> [snip]
> @@ -427,6 +446,7 @@
>          if (f.kern32_sz == 0)
>          {
>              die("Error: can't find a 32-bit kernel here");
> +        goto restart;
>          }
>          kernfd = offset_open(bootdev, f.kern32_offset, f.kern32_sz);
>      }
> [snip]
> 
> from a non-interactive session (as I frequently encouter the pb, I 
> install a kernel with palo and later to free space, I remove this kernel 
> :( ) then imho ipl will loop definitively?
> 
> hmm isn't it the same
> @@ -268,9 +269,13 @@
>      puts("alo ipl " PALOVERSION " ");
>      puts(bld_info);
>      puts("\n");
> -    if (Debug) printf("iplmain(%d, started %s)\n", is_interactive,
> +    interactive = is_interactive;
> +    if (Debug) printf("iplmain(%d, started %s)\n", interactive,
>      started_wide ? "wide" : "narrow");
>      if (Debug) printf("initial-sp %p\n", initialstackptr);
> +
> + restart:
> +
>      blocked_bootdev = pdc_bootdev_open();
>      bootdev = byteio_open(blocked_bootdev);
> 
> [snip]
> @@ -312,6 +322,7 @@
>      if (f.cmdline[0] == '\0')    /* no command line specified */
>      {
>      die("ERROR: No command line on boot media\n");
> +    goto restart;
>      }
> 
> As we don't find the cmd line on media, imho we would never have any 
> chance to interact?
> Well I still have to check in more detail but may be simply added a flag 
> 'interact:' just before test if (interactive); and replace all goto 
> restart; by (interactive=1; goto interact; )
> 
> Appologies if I've missed some other change that make my though false,
>     Joel
> 
> Paul Bame wrote:
> 
>> CVSROOT:    /var/cvs
>> Module name:    palo
>> Changes by:    bame    03/12/30 10:55:46
>>
>> Modified files:
>>     ipl            : ipl.c
>> Log message:
>> typo
>>
>> _______________________________________________
>> parisc-linux-cvs mailing list
>> parisc-linux-cvs@lists.parisc-linux.org
>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux-cvs
>>
> 
> 
What do think about this draft of patch:
=========><=========
--- ipl.c       2004-01-01 16:25:47.339568000 +0100
+++ ipl.c.new   2004-01-01 16:24:48.429568000 +0100
@@ -278,8 +278,6 @@
         started_wide ? "wide" : "narrow");
      if (Debug) printf("initial-sp %p\n", initialstackptr);

- restart:
-
      blocked_bootdev = pdc_bootdev_open();
      bootdev = byteio_open(blocked_bootdev);

@@ -326,7 +324,8 @@
      if (f.cmdline[0] == '\0')  /* no command line specified */
      {
         die("ERROR: No command line on boot media\n");
-       goto restart;
+        interactive=1;
+       goto interactive_loop;
      }

      /* add the right console= if there isn't one yet */
@@ -393,9 +392,18 @@
         }
      }

+ interactive_loop:
+
      if (interactive)
         interact(&f);

+    if (f.cmdline[0] == '\0')  /* no command line specified */
+    {
+       die("ERROR: No command line on boot media\n");
+        interactive=1;
+       goto interactive_loop;
+    }
+
      strcpy(commandline,
             parse(f.cmdline, &kern_part, kern_name, &rd_part, rd_name));

@@ -439,14 +447,16 @@
      {
         printf("ERROR: Requesting kernel from partition %d "
                     "on unpartitioned media!\n", kern_part);
-       while(1);
+        interactive=1;
+       goto interactive_loop;
      }

      if (rd_part != -1 && rd_part != kern_part)
      {
         die("ERROR:: palo does not support ramdisk on different"
                 " partition than kernel\n");
-       goto restart;
+        interactive=1;
+       goto interactive_loop;
      }

      if (kern_part == 0)
@@ -461,7 +471,8 @@
             if (f.kern32_sz == 0)
             {
                 die("Error: can't find a 32-bit kernel here");
-               goto restart;
+                interactive=1;
+                goto interactive_loop;
             }
             kernfd = offset_open(bootdev, f.kern32_offset, f.kern32_sz);
         }
@@ -470,7 +481,8 @@
             if (f.kern64_sz == 0)
             {
                 die("Error: can't find a 64-bit kernel here");
-               goto restart;
+                interactive=1;
+                goto interactive_loop;
             }
             kernfd = offset_open(bootdev, f.kern64_offset, f.kern64_sz);
         }
@@ -502,7 +514,8 @@
                 else
                 {
                     die("No kernels found.");
-                   goto restart;
+                    interactive=1;
+                    goto interactive_loop;
                 }
             }

@@ -523,7 +536,8 @@
         if (!load_kernel(kernfd, &entry, &wide))
         {
             die("ERROR: failed to load kernel\n");
-           goto restart;
+            interactive=1;
+            goto interactive_loop;
         }

         if (rd_part != -1)
@@ -548,7 +562,8 @@
             (partition[kern_part - 1].id != 0x83 && partition[kern_part - 1].id != 0xfd && partition[kern_part - 1].id != 0xf0) )
         {
             printf("ERROR: Partition %d must be ext2\n", kern_part);
-           while(1);
+            interactive=1;
+            goto interactive_loop;
         }

         pp = &partition[kern_part - 1];
@@ -565,14 +580,16 @@
         {
             printf("ERROR: open %s from partition %d failed\n",
                 kern_name, kern_part);
-           while(1);
+            interactive=1;
+            goto interactive_loop;
         }

         bkern_fd = byteio_open(kern_fd);
         if (!load_kernel(bkern_fd, &entry, &wide))
         {
             die("ERROR: failed to load kernel\n");
-           goto restart;
+            interactive=1;
+            goto interactive_loop;
         }

         if (rd_part != -1)
@@ -593,8 +610,10 @@

      /* FIXME!!! need to pass command line to kernel */
      /* could theoretically use a function pointer, but they're ugly on PA */
-    if(pdc_default_width(wide))
-           goto restart;
+    if(pdc_default_width(wide)) {
+        interactive=1;
+       goto interactive_loop;
+    }
      printf("Branching to kernel entry point 0x%08x.  If this is the last\n"
            "message you see, you may need to switch your console.  This is\n"
            "a common symptom -- search the FAQ and mailing list at parisc-linux.org\n\n",
=========><=========

I still have to work on because if I go into interactive mode with an empty cmdline, I couldn't yet added anything to this cmdline :(

Please let me know your opinion,
Joel

--------------090507060504010807030902
Content-Type: text/plain;
 name="Ipl.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="Ipl.diff"

--- ipl.c	2004-01-01 16:25:47.339568000 +0100
+++ ipl.c.new	2004-01-01 16:24:48.429568000 +0100
@@ -278,8 +278,6 @@
 	started_wide ? "wide" : "narrow");
     if (Debug) printf("initial-sp %p\n", initialstackptr);
 
- restart:
-
     blocked_bootdev = pdc_bootdev_open();
     bootdev = byteio_open(blocked_bootdev);
 
@@ -326,7 +324,8 @@
     if (f.cmdline[0] == '\0')	/* no command line specified */
     {
 	die("ERROR: No command line on boot media\n");
-	goto restart;
+        interactive=1;
+	goto interactive_loop;
     }
 
     /* add the right console= if there isn't one yet */
@@ -393,9 +392,18 @@
 	}
     }
 
+ interactive_loop:
+
     if (interactive)
 	interact(&f);
 
+    if (f.cmdline[0] == '\0')	/* no command line specified */
+    {
+	die("ERROR: No command line on boot media\n");
+        interactive=1;
+	goto interactive_loop;
+    }
+
     strcpy(commandline,
 	    parse(f.cmdline, &kern_part, kern_name, &rd_part, rd_name));
 
@@ -439,14 +447,16 @@
     {
 	printf("ERROR: Requesting kernel from partition %d "
 		    "on unpartitioned media!\n", kern_part);
-	while(1);
+        interactive=1;
+	goto interactive_loop;
     }
 
     if (rd_part != -1 && rd_part != kern_part)
     {
 	die("ERROR:: palo does not support ramdisk on different"
 		" partition than kernel\n");
-	goto restart;
+        interactive=1;
+	goto interactive_loop;
     }
 
     if (kern_part == 0)
@@ -461,7 +471,8 @@
 	    if (f.kern32_sz == 0)
 	    {
 	        die("Error: can't find a 32-bit kernel here");
-		goto restart;
+                interactive=1;
+                goto interactive_loop;
 	    }
 	    kernfd = offset_open(bootdev, f.kern32_offset, f.kern32_sz);
 	}
@@ -470,7 +481,8 @@
 	    if (f.kern64_sz == 0)
 	    {
 	        die("Error: can't find a 64-bit kernel here");
-		goto restart;
+                interactive=1;
+                goto interactive_loop;
 	    }
 	    kernfd = offset_open(bootdev, f.kern64_offset, f.kern64_sz);
 	}
@@ -502,7 +514,8 @@
 		else
 		{
 		    die("No kernels found.");
-		    goto restart;
+                    interactive=1;
+                    goto interactive_loop;
 		}
 	    }
 
@@ -523,7 +536,8 @@
 	if (!load_kernel(kernfd, &entry, &wide))
 	{
 	    die("ERROR: failed to load kernel\n");
-	    goto restart;
+            interactive=1;
+            goto interactive_loop;
 	}
 
 	if (rd_part != -1)
@@ -548,7 +562,8 @@
 	    (partition[kern_part - 1].id != 0x83 && partition[kern_part - 1].id != 0xfd && partition[kern_part - 1].id != 0xf0) )
 	{
 	    printf("ERROR: Partition %d must be ext2\n", kern_part);
-	    while(1);
+            interactive=1;
+            goto interactive_loop;
 	}
 
 	pp = &partition[kern_part - 1];
@@ -565,14 +580,16 @@
 	{
 	    printf("ERROR: open %s from partition %d failed\n",
 		kern_name, kern_part);
-	    while(1);
+            interactive=1;
+            goto interactive_loop;
 	}
 
 	bkern_fd = byteio_open(kern_fd);
 	if (!load_kernel(bkern_fd, &entry, &wide))
 	{
 	    die("ERROR: failed to load kernel\n");
-	    goto restart;
+            interactive=1;
+            goto interactive_loop;
 	}
 
 	if (rd_part != -1)
@@ -593,8 +610,10 @@
 
     /* FIXME!!! need to pass command line to kernel */
     /* could theoretically use a function pointer, but they're ugly on PA */
-    if(pdc_default_width(wide))
-	    goto restart;
+    if(pdc_default_width(wide)) {
+        interactive=1;
+	goto interactive_loop;
+    }
     printf("Branching to kernel entry point 0x%08x.  If this is the last\n"
 	   "message you see, you may need to switch your console.  This is\n"
 	   "a common symptom -- search the FAQ and mailing list at parisc-linux.org\n\n",

--------------090507060504010807030902--



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From: Matthew Wilcox <willy@debian.org>
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Subject: [parisc-linux] Re: Installing Debian on an 712/80
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On Tue, Dec 23, 2003 at 10:20:01AM -0500, Brian Barber wrote:
> Please forgive the intrusion.  If this is not a message to which you wish to reply, please let me know.  I understand.

That's fine; you just mailed me in the middle of my xmas time off ... and
much mail accumulated ;-)

> I've done some more digging and come up with the following obstacles:
> 1) HP machines require active SCSI termination, hence the reason why I could not boot from my (borrowed) external SCSI CD-ROM (passive terminator only)

I'm not sure that's true, but they do require certain CD drives to
boot from.  I forget the details; something to do with 2k vs 512 byte
sector sizes.

> 2) There is no floppy boot support for the 712/80, or any other model for that matter.

Correct; it's not been written.  other things always seem to have a
higher priority ;-)

> 3) There is no rboot support.

Correct.  rboot is for 715/Scorpio and older.

> If I am correct (jump in here), I am left with bootp/tftp as the only
> means of booting the machine.  If I take this route, I copy lifimage
> to the boot directory of my tftp server.  This is where I am stuck.
> There is no documentation I can find (or discern) that walks one through
> an install from a tftp-booted machine.  Is there a way for me to mount
> the Debain CD via nfs and launch the installer from there?

I'd like to just point you at the boot HOWTO [1], but it doesn't seem
to cover this step.  It only covers booting the kernel, not setting up
your NFS root.  I've had mixed success with using debootstrap to populate
a minimal nfsroot, then updating to sid and installing new packages.

I'm cc'ing the mailing lists in the hope somebody will write down how
to do this properly and Thomas or Thibaut can add it.

[1] http://www.pateam.org/parisc-linux-boot/doc.html

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Using -pg on hppa *is* broken
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lamont,

I know you were looking for me regarding the use of '-pg' profiling in
debian. It *is* broken, it's fixed on my experimental system thanks to a
few patches from Randolph. I'm currently looking into sprof so I can
profile glibc itself (not working currently).

The main issue was that the 'start' symbol needs to be canonicalized
before passing on to the gmon routines. This requires entry.h to be
modified. What does this *really* mean? It means that in general you
need a gcc-3.3 runtime to have glibc work properly, the good news is
that debian doesn't have to have a gcc-3.3 runtime since __c_f_f_c was
backported for our gcc pacakges. 

I need to coordinate with the debian-glibc people again to resync the
patches required for hppa.

Cheers,
Carlos.



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Subject: Re: [parisc-linux] Using -pg on hppa *is* broken
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> The main issue was that the 'start' symbol needs to be canonicalized
> before passing on to the gmon routines. This requires entry.h to be

I still think that using __c_f_f_c for this special case is overkill.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Steve Bromwich <hppa@fop.ns.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Disk hanging problems with 715/100XC fixed
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Hi,

A while ago I posted here about problems I had with my machine hanging
under heavy disk activity. After getting a round tuit for Christmas, I
finally traced it down to one of the drives (a Quantum Fireball) not being
able to support maximal values for TCQ, as referenced in Configure.help
for CONFIG_AIC7XXX_OLD_CMDS_PER_DEVICE:

  NOTE: Certain very broken drives are known to lock up when given
  more commands than they like to deal with. Quantum Fireball drives
  are the most common in this category. For the Quantum Fireball
  drives it is suggested to use no more than 8 commands per device.

To help anyone googling keywords with the same problem, my drive
(according to /proc/scsi/scsi) is:

Host: scsi0 Channel: 00 Id: 02 Lun: 00
  Vendor: QUANTUM  Model: FIREBALL-ST2     Rev: HP0J
  Type:   Direct-Access                    ANSI SCSI revision: 02

I fixed this by setting NCR_700_MAX_TAGS to 8 in drivers/scsi/53c700.h.
Hopefully this will help anyone else who has the same problem! My machine
has now been up and running for 5 days quite happily, whereas before it
wouldn't last longer than 24 hours.

Cheers, Steve


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Subject: Re: [parisc-linux] Re: Installing Debian on an 712/80
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On Thu, 1 Jan 2004, Matthew Wilcox wrote:

> On Tue, Dec 23, 2003 at 10:20:01AM -0500, Brian Barber wrote:
>
> > I've done some more digging and come up with the following obstacles:
> > 1) HP machines require active SCSI termination, hence the reason why I could not boot from my (borrowed) external SCSI CD-ROM (passive terminator only)
>
> I'm not sure that's true, but they do require certain CD drives to
> boot from.  I forget the details; something to do with 2k vs 512 byte
> sector sizes.

The industry standard (ie, IBM PC world) is 2048 byte sectors, whereas HP
(and Sun) use 512 byte sectors. If you don't have a drive that supports
512 byte sectors, you won't get anywhere. See the post I made (and
subsequent informative posts from others) at
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-November/021645.html
for more details.

> > If I am correct (jump in here), I am left with bootp/tftp as the only
> > means of booting the machine.  If I take this route, I copy lifimage
> > to the boot directory of my tftp server.  This is where I am stuck.
> > There is no documentation I can find (or discern) that walks one through
> > an install from a tftp-booted machine.  Is there a way for me to mount
> > the Debain CD via nfs and launch the installer from there?

When you boot via tftp you still need a way to communicate with the box,
either using a keyboard and monitor, or (more commonly) via serial
console. Is this the answer to the question you're asking?

Alternatively, when you boot the lifimage I *think* you get the option of
installing from pre-mounted directory (somewhat useless via serial console
- I don't think there's any way to get a shell prompt to premount a
directory), NFS, HTTP or FTP - ie, the usual Debian install methodology. I
suspect your best bet is over NFS.

> I'd like to just point you at the boot HOWTO [1], but it doesn't seem
> to cover this step.  It only covers booting the kernel, not setting up
> your NFS root.  I've had mixed success with using debootstrap to populate
> a minimal nfsroot, then updating to sid and installing new packages.

One thing I noticed is that the config given is using inetd (I use xinetd)
and appears to be using the "standard" tftp, rather than hpa's tftpd. I
recently set up a diskless J200 (imaginatively named "j200"), the config I
used on the server is as follows:

dhcpd.conf:

allow bootp;
option domain-name "fop.ns.ca";
option domain-name-servers 10.2.1.10;
option log-servers 10.2.1.10;
authoritative;
use-host-decl-names on;

host j200 {
  hardware ethernet 08:00:09:8c:d1:41;
  filename "lifimage";
  server-name "10.2.1.10";
  fixed-address 10.2.1.21;
  option subnet-mask 255.255.255.0;
  option broadcast-address 10.2.1.255;
  option routers 10.2.1.200;
  option domain-name "fop.ns.ca";
  option root-path "10.2.1.21:/j200";
}


xinetd.conf:

service tftp
{
       socket_type     = dgram
       protocol        = udp
       wait            = yes
       user            = root
       #server         = /usr/sbin/tcpd
       #server_args    = /usr/sbin/in.tftpd /tftpboot
       server          = /usr/sbin/in.tftpd
       server_args     = -v -s /tftpboot
       disable         = no
}


One tip I noticed is it takes a dog's age to boot with serial console set
to 9600. If you're going to do a serial console, I'd recommend upping the
rate to 19200.

I'm off to Boston tomorrow for a week and a half, but if you're still
having troubles when I get back I can fire up the J200 and write up a
step-by-step if it'd help.

Cheers, Steve


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Herbert Poetzl wrote:

> .. especially the spam filters ...

Several of the maillists I follow need subscription to be able to post to the 
list. This might be an idea for this list too (if the maillist engine allows it).

If such an meganism is activated, I'd like to be able to add some 'from: ' 
addresses to my account to be able to send from different locations direct into 
the maillist.


CBee

> 
> best,
> Herbert
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 




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Subject: [parisc-linux] Bug#225892: [patch] on hppa build binutils targeted
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Package: binutils
Version: 2.14.90.0.7
Tags: patch

Please apply the following patch to build an binutils-hppa64 package,
which is needed together with gcc-3.3-hppa64 to build the 64bit
kernels for hppa-linux. The tools currently used to build the 64bit
aren't packaged at all, so this is a first step ...

Binary packages currently can be found at
http://cs.tu-berlin.de/~doko/tmp/hppa/



diff -ur binutils-2.14.90.0.7.old/debian/control binutils-2.14.90.0.7/debian/control
--- binutils-2.14.90.0.7.old/debian/control	2003-12-15 08:25:17.000000000 +0100
+++ binutils-2.14.90.0.7/debian/control	2003-12-17 22:39:10.000000000 +0100
@@ -43,6 +43,19 @@
  NORMAL USERS SHOULD NOT INSTALL THIS PACKAGE.  It's meant only for those
  requiring support for reading info from binaries from other architectures.
 
+Package: binutils-hppa64
+Architecture: hppa
+Depends: ${shlibs:Depends}, binutils (>= ${Source-Version})
+Conflicts: binutils-multiarch
+Recommends: libc6-dev
+Suggests: binutils-doc (>= ${Source-Version})
+Description: The GNU assembler, linker and binary utilities targeted for hppa64-linux
+ The programs in this package are used to assemble, link and manipulate
+ binary and object files.  They may be used in conjunction with a compiler
+ and various libraries to build programs.
+ .
+ This package is needed to build an 64bit kernel for the 64bit hppa machines.
+
 Package: binutils-doc
 Section: doc
 Architecture: all
diff -ur binutils-2.14.90.0.7.old/debian/rules binutils-2.14.90.0.7/debian/rules
--- binutils-2.14.90.0.7.old/debian/rules	2003-12-15 08:25:17.000000000 +0100
+++ binutils-2.14.90.0.7/debian/rules	2003-12-17 22:37:07.000000000 +0100
@@ -19,6 +19,7 @@
 p_dev = $(p_bin)-dev
 p_mul = $(p_bin)-multiarch
 p_doc = $(p_bin)-doc
+p_hppa64 = $(p_bin)-hppa64
 
 pwd   := $(shell pwd)
 d     = debian/tmp
@@ -26,6 +27,7 @@
 d_dev = debian/$(p_dev)
 d_mul = debian/$(p_mul)
 d_doc = debian/$(p_doc)
+d_hppa64 = debian/$(p_hppa64)
 
 install_dir    = install -d -m 755
 install_file   = install -m 644
@@ -44,6 +46,12 @@
 MULTI_VERSION = $(VERSION)-multiarch
 MULTI_ARGS    = MAKEOVERRIDES="VERSION=$(MULTI_VERSION)"
 
+HPPA64_VERSION= $(VERSION)-hppa64
+HPPA64_ARGS   = MAKEOVERRIDES="VERSION=$(HPPA64_VERSION)"
+hppa64_prefix = usr
+#hppa64_prefix = usr/hppa64-linux
+#hppa64_prefix = usr/lib/hppa64-linux
+
 ########################################
 
 # Use older gcc on m68k until test suite regressions are resolved
@@ -92,10 +100,10 @@
 
 clean: unpatch
 	$(checkdir)
-	-rm -fr builddir-multi builddir-single
+	-rm -fr builddir-multi builddir-single builddir-hppa64
 	-find . -name \*.gmo -o -name \*~ | xargs rm -f
 	-rm -f $(pwd)/test-summary
-	-rm -fr $(d_bin) $(d_dev) $(d_mul) $(d_doc)
+	-rm -fr $(d_bin) $(d_dev) $(d_mul) $(d_doc) $(d_hppa64)
 	-rm -rf debian/patched debian/tmp debian/files debian/substvars
 
 ################################################################################
@@ -150,8 +158,40 @@
 		CFLAGS="$(CFLAGS)" $(MULTI_ARGS)
 	touch build-multi-stamp
 
+################################################################################
+
+#################
+# hppa64 target #
+#################
+
+configure-hppa64-stamp: patch-stamp
+	$(checkdir)
+	rm -rf configure-hppa64-stamp \
+		builddir-hppa64
+	mkdir builddir-hppa64
+	cd builddir-hppa64 \
+	    && env CC="$(CC)" ../configure \
+		--enable-shared \
+		--prefix=/$(hppa64_prefix) \
+		--build=$(DEB_BUILD_GNU_TYPE) \
+		--host=$(DEB_BUILD_GNU_TYPE) \
+		--target=hppa64-linux
+	$(MAKE) -C builddir-hppa64 configure-host
+	touch configure-hppa64-stamp
+
+build-hppa64-stamp: configure-hppa64-stamp
+	$(checkdir)
+	$(MAKE) -C builddir-hppa64/bfd headers
+	$(MAKE) -C builddir-hppa64 \
+		CFLAGS="$(CFLAGS)" $(HPPA64_ARGS)
+	touch build-hppa64-stamp
+
+build_stamps = build-single-stamp build-multi-stamp
+ifeq ($(DEB_HOST_ARCH),hppa)
+       build_stamps += build-hppa64-stamp
+endif
 build: build-stamp
-build-stamp: build-single-stamp build-multi-stamp
+build-stamp: $(build_stamps)
 	touch build-stamp
 
 ################################################################################
@@ -160,7 +200,11 @@
 # install target #
 ##################
 
-install: install-stamp
+install_stamps = install-stamp
+ifeq ($(DEB_HOST_ARCH),hppa)
+       install_stamps += install-hppa64-stamp
+endif
+install: $(install_stamps)
 install-stamp: checkroot build-stamp
 	$(checkdir)
 
@@ -183,7 +227,7 @@
 	: # Work around bug in 2.14.90.0.7 which caused as info and
 	: # manpages to not be installed.
 	make -C builddir-single/gas/doc \
-      		mandir=$(pwd)/$(d_bin)/usr/share/man \
+		mandir=$(pwd)/$(d_bin)/usr/share/man \
 	        infodir=$(pwd)/$(d_doc)/usr/share/info install-info-am install-am
 
 	: # copy libiberty.h ... not too keen on this, but it was requested
@@ -235,6 +279,48 @@
 
 	touch install-stamp
 
+install-hppa64-stamp: checkroot build-hppa64-stamp
+	$(checkdir)
+
+	rm -fr $(d_hppa64)
+	$(install_dir) $(d_hppa64)
+	$(install_dir) $(d_hppa64)/usr/lib
+
+	: # install binutils-hppa64 stuff
+	$(MAKE) -C builddir-hppa64 \
+		CFLAGS="$(CFLAGS)" $(HPPA64_ARGS) \
+		prefix=$(pwd)/$(d_hppa64)/$(hppa64_prefix) \
+		mandir=$(pwd)/$(d_hppa64)/$(hppa64_prefix)/share/man \
+		infodir=$(pwd)/$(d_hppa64)/$(hppa64_prefix)/share/info install
+
+	: # move shared libs to the stndard path
+	mv $(d_hppa64)/$(hppa64_prefix)/hppa-linux/hppa64-linux/lib/lib*-*.so \
+		$(d_hppa64)/usr/lib/.
+
+	: # Now get rid of just about everything in binutils-hppa64
+	rm -rf $(d_hppa64)/$(hppa64_prefix)/man
+	rm -rf $(d_hppa64)/$(hppa64_prefix)/info
+	rm -rf $(d_hppa64)/$(hppa64_prefix)/include
+	rm -rf $(d_hppa64)/$(hppa64_prefix)/share
+	rm -rf $(d_hppa64)/$(hppa64_prefix)/hppa-linux
+	rm -rf $(d_hppa64)/$(hppa64_prefix)/lib/libiberty.a
+	rm -rf $(d_hppa64)/$(hppa64_prefix)/lib/ldscripts
+
+	: # Strip shared libraries
+	$(STRIP) --strip-unneeded $(d_hppa64)/$(hppa64_prefix)/lib/libbfd-*so
+	$(STRIP) --strip-unneeded $(d_hppa64)/$(hppa64_prefix)/lib/libopcodes-*so
+
+	chmod ugo-x $(d_hppa64)/$(hppa64_prefix)/lib/*.so
+	$(STRIP) $(d_hppa64)/$(hppa64_prefix)/bin/*
+
+	: # Don't want /usr/<arch>-linux to exist in any package
+	rm -rf $(d_hppa64)/$(hppa64_prefix)/$(DEB_HOST_GNU_TYPE)
+
+	: # symlink include dir (this seems to be sufficient for now ...)
+	ln -sf ../include $(d_hppa64)/$(hppa64_prefix)/include
+
+	touch install-hppa64-stamp
+
 ################################################################################
 
 #######################
@@ -287,14 +373,22 @@
 	$(install_script) debian/binutils-multiarch.preinst $(d_mul)/DEBIAN/preinst
 	$(install_file) debian/binutils-multiarch.shlibs $(d_mul)/DEBIAN/shlibs
 
+ifeq ($(DEB_HOST_ARCH),hppa)
+	$(install_dir) $(d_hppa64)/DEBIAN
+endif
+
 	: # install docs
 	$(install_dir) $(d_bin)/usr/share/doc/$(p_bin)/
 	$(install_file)	debian/changelog $(d_bin)/usr/share/doc/$(p_bin)/changelog.Debian
 	$(install_file)	debian/copyright $(d_bin)/usr/share/doc/$(p_bin)/
 
 	$(install_dir) $(d_dev)/usr/share/doc/ $(d_mul)/usr/share/doc/
-	ln -s $(p_bin) $(d_dev)/usr/share/doc/$(p_dev)
-	ln -s $(p_bin) $(d_mul)/usr/share/doc/$(p_mul)
+	ln -sf $(p_bin) $(d_dev)/usr/share/doc/$(p_dev)
+	ln -sf $(p_bin) $(d_mul)/usr/share/doc/$(p_mul)
+ifeq ($(DEB_HOST_ARCH),hppa)
+	$(install_dir) $(d_hppa64)/usr/share/doc/
+	ln -sf $(p_bin) $(d_hppa64)/usr/share/doc/$(p_hppa64)
+endif
 
 	$(install_file) $(pwd)/test-summary binutils/NEWS binutils/ChangeLog.linux \
 	                debian/README.Debian $(d_bin)/usr/share/doc/$(p_bin)/
@@ -330,11 +424,22 @@
 	find $(d_mul) -type f | xargs file | grep ELF | cut -d: -f 1 | xargs dpkg-shlibdeps
 	dpkg-gencontrol -isp -P$(d_mul) -p$(p_mul)
 
+ifeq ($(DEB_HOST_ARCH),hppa)
+	rm -f debian/substvars
+	find $(d_hppa64) -type f | xargs file | grep ELF | cut -d: -f 1 | xargs dpkg-shlibdeps
+	dpkg-gencontrol -isp -P$(d_hppa64) -p$(p_hppa64)
+endif
+
 	chown -R root:root $(d_bin) $(d_dev) $(d_mul)
 	chmod -R go=rX  $(d_bin) $(d_dev) $(d_mul)
 	dpkg --build $(d_bin) ..
 	dpkg --build $(d_dev) ..
 	dpkg --build $(d_mul) ..
+ifeq ($(DEB_HOST_ARCH),hppa)
+	chown -R root:root $(d_hppa64)
+	chmod -R go=rX  $(d_hppa64)
+	dpkg --build $(d_hppa64) ..
+endif
 
 ################################################################################
 



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On Thu, Jan 01, 2004 at 05:55:08PM -0400, Steve Bromwich wrote:
> I fixed this by setting NCR_700_MAX_TAGS to 8 in drivers/scsi/53c700.h.

As of 5 years ago, HP-UX default was 8 for servers and 2 for workstations.
I point this out because it means the SCSI devices one is likely 
to get with a parisc machine have only been qualified to work with
8 IOs outstanding. Setting MAX_TAGS to 8 might be a good first step
for all SCSI drivers when problems like this show up.

grant


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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable
	to open an initial console."
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To: Joel Soete <soete.joel@tiscali.be>
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Joel,

Even though you should not need the pdc_console for what you want to do,
pdc_console should work in theory.  It probably needs to be updated to
work with the 2.6 kernel.  I will add this to my TODO list.

Thanks,

- Ryan


On Sat, 2003-12-27 at 14:00, Joel Soete wrote:
> Hi all,
> 
> I try to see if pdc_console could be operational on my c110 with kernel 2.6.0-pa5.
> 
> So I uncheck serial_mux and check pdc_console with make menuconfig (edit also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
> Then I create the special file "mknod /dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab
> 
> (I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)
> 
> But no way to make it works?
> 
> Linux version 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease) 3FP[0] enabled: Rev 1 Model 11 
>                                The 32-bit Kernel has started...
> Initialized PDC Console for debugging.
> Determining PDC firmware type: System Map.
> model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0avers  0000000d
> CPUID vers 11 rev 13 (0x0000016d)
> model 9000/777/C110
> Total Memory: 128 Mb
> [snip]
> Soft power switch enabled, polling @ 0xf0140000.
> Console: switching to colour frame buffer device 128x48
> pty: 256 Unix98 ptys configured
> lp: driver loaded but no devices found
> Generic RTC Driver v1.07
> Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
> ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
> ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
> [snip]
> Freeing unused kernel memory: 504k freed
> Warning: unable to open an initial console.
> Adding 131832k swap on /dev/md1.  Priority:-1 extents:1
> EXT3 FS on md2, internal journal
> [snip]
> ....eth0: link ok.
> 
> Debian GNU/Linux testing/unstable hpalin ttyS0
> 
> hpalin login:
> 
> In th syslog I also notice:
> [snip]
> Dec 27 21:45:03 hpalin init: Id "TB0" respawning too fast: disabled for 5 minutes
> Dec 27 21:52:15 hpalin init: Id "TB0" respawning too fast: disabled for 5 minutes
> [snip]
> 
> And don't find any such device with:
> # cat /proc/devices
> Character devices:
>    1 mem
>    2 pty
>    3 ttyp
>    4 /dev/vc/0
>    4 tty
>    4 ttyS
>    5 /dev/tty
>    5 /dev/console
>    5 /dev/ptmx
>    6 lp
>    7 vcs
>    9 st
>   10 misc
>   13 input
>   14 sound
>   21 sg
>   29 fb
>   36 netlink
> 128 ptm
> 136 pts
> 180 usb
> [snip]
> 
> Any idea? (what should I do wrongly?)
> 
> Thanks in advance for attention,
> 	Joel
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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From: "Matt Lewis" <nitephyre@iinet.net.au>
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Subject: [parisc-linux] Probem Installing: slang(version).deb corrupt
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Hi, I have a HP Visualize C3000 and i'm trying to install Debian HPPA on =
it... and every time i try to install the base system, whether it be =
from CD or http, i get the message of "slang(version_here).deb is =
corrupt. could not download"

is there any way around this? since my machine hasn't got HPUX on it, =
and i cant find anywhere to download it :|

cheers, matt :)

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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi, I have a HP Visualize C3000 and i'm =
trying to=20
install Debian HPPA on it... and every time i try to install the base =
system,=20
whether it be from CD or http, i get the message of =
"slang(version_here).deb is=20
corrupt. could not download"</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>is there any way around this? since my =
machine=20
hasn't got HPUX on it, and i cant find anywhere to download it =
:|</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>cheers, matt =
:)</FONT></DIV></BODY></HTML>

------=_NextPart_000_0005_01C3D231.D991B020--



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Subject: Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable
	to open an initial console."
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Hi Ryan,



Ryan Bradetich wrote:
> Joel,
> 
> Even though you should not need the pdc_console for what you want to do,

Well, I had the opportunity to test pdc_console on my b2k but as well as in 2.4 it make hung the kernel at boot time:
the cdrom green led stay continuously lighted (if I add or remove ide-cdrom support in the kernel)
Unfortunately I never reach to get any relevant toc info to go further in this pb invetigation :(. Now basicaly 2.6 is running on 
this system and so I will try to add some printk() to locate more accurately this event.

> pdc_console should work in theory.  It probably needs to be updated to
> work with the 2.6 kernel.  I will add this to my TODO list.
> 
Ah ok I will waiting some news so.

Thanks also and happy new year,
	Joel



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Matt Lewis wrote:
> Hi, I have a HP Visualize C3000 and i'm trying to install Debian HPPA on it... and every time i try to install the base system, whether it be from CD or http, i get the message of "slang(version_here).deb is corrupt. could not download"
> 
> is there any way around this?

IIRC, the c3k require a more recent kernel and what could help is a recent net-install iso cd available at:
<http://www.pateam.org/cd-images/testing/>

and this install would work via a serial console (simply unplug kdb amd mouse and pdc will swicth automaticaly to this serial 
console).

  since my machine hasn't got HPUX on it, and i cant find anywhere to download it :|
> 
Yes AFAIK you would have to order this CD near HP.

hth,
	Joel



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  ----- Original Message -----=20
  From: Joel Soete=20
  To: Matt Lewis=20
  Cc: parisc-linux@lists.parisc-linux.org=20
  Sent: Saturday, January 03, 2004 9:28 PM
  Subject: Re: [parisc-linux] Probem Installing: slang(version).deb =
corrupt




  Matt Lewis wrote:
  > Hi, I have a HP Visualize C3000 and i'm trying to install Debian =
HPPA on it... and every time i try to install the base system, whether =
it be from CD or http, i get the message of "slang(version_here).deb is =
corrupt. could not download"
  >=20
  > is there any way around this?

  IIRC, the c3k require a more recent kernel and what could help is a =
recent net-install iso cd available at:
  <http://www.pateam.org/cd-images/testing/>

  and this install would work via a serial console (simply unplug kdb =
amd mouse and pdc will swicth automaticaly to this serial=20
  console).

    since my machine hasn't got HPUX on it, and i cant find anywhere to =
download it :|
  >=20
  Yes AFAIK you would have to order this CD near HP.

  hth,
  Joel



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0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:soete.joel@tiscali.be" =
title=3Dsoete.joel@tiscali.be>Joel=20
  Soete</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  href=3D"mailto:nitephyre@iinet.net.au" =
title=3Dnitephyre@iinet.net.au>Matt=20
  Lewis</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Cc:</B> <A=20
  href=3D"mailto:parisc-linux@lists.parisc-linux.org"=20
  =
title=3Dparisc-linux@lists.parisc-linux.org>parisc-linux@lists.parisc-lin=
ux.org</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Saturday, January 03, =
2004 9:28=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [parisc-linux] =
Probem=20
  Installing: slang(version).deb corrupt</DIV>
  <DIV><BR></DIV><BR><BR>Matt Lewis wrote:<BR>&gt; Hi, I have a HP =
Visualize=20
  C3000 and i'm trying to install Debian HPPA on it... and every time i =
try to=20
  install the base system, whether it be from CD or http, i get the =
message of=20
  "slang(version_here).deb is corrupt. could not download"<BR>&gt; =
<BR>&gt; is=20
  there any way around this?<BR><BR>IIRC, the c3k require a more recent =
kernel=20
  and what could help is a recent net-install iso cd available =
at:<BR>&lt;<A=20
  =
href=3D"http://www.pateam.org/cd-images/testing/">http://www.pateam.org/c=
d-images/testing/</A>&gt;<BR><BR>and=20
  this install would work via a serial console (simply unplug kdb amd =
mouse and=20
  pdc will swicth automaticaly to this serial =
<BR>console).<BR><BR>&nbsp; since=20
  my machine hasn't got HPUX on it, and i cant find anywhere to download =
it=20
  :|<BR>&gt; <BR>Yes AFAIK you would have to order this CD near=20
  HP.<BR><BR>hth,<BR>Joel<BR><BR></BLOCKQUOTE></BODY></HTML>

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From: "Matt Lewis" <nitephyre@iinet.net.au>
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Subject: Re: [parisc-linux] Probem Installing: slang(version).deb corrupt
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ok, i went and got the latest testing iso, but now it's saying that =
libc6_2.2.5-6_hppa.deb was corrupt and cannot download...

 thats cd no.2 coastered and another 70mb down... any tips?

the orginal problem was from both a cd i got with the computer (an =
earlier 70mb d/l it seems) and the latest full 650mb iso i downloaded...

though if i try and boot from the big iso, the installer starts then the =
keyboard wont work... getting frustrated :|

  ----- Original Message -----=20
  From: Joel Soete=20
  To: Matt Lewis=20
  Cc: parisc-linux@lists.parisc-linux.org=20
  Sent: Saturday, January 03, 2004 9:28 PM
  Subject: Re: [parisc-linux] Probem Installing: slang(version).deb =
corrupt




  Matt Lewis wrote:
  > Hi, I have a HP Visualize C3000 and i'm trying to install Debian =
HPPA on it... and every time i try to install the base system, whether =
it be from CD or http, i get the message of "slang(version_here).deb is =
corrupt. could not download"
  >=20
  > is there any way around this?

  IIRC, the c3k require a more recent kernel and what could help is a =
recent net-install iso cd available at:
  <http://www.pateam.org/cd-images/testing/>

  and this install would work via a serial console (simply unplug kdb =
amd mouse and pdc will swicth automaticaly to this serial=20
  console).

    since my machine hasn't got HPUX on it, and i cant find anywhere to =
download it :|
  >=20
  Yes AFAIK you would have to order this CD near HP.

  hth,
  Joel



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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>
<DIV>ok, i went and got the latest testing iso, but now it's saying that =

libc6_2.2.5-6_hppa.deb was corrupt and cannot download...</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;thats cd no.2 coastered and another 70mb down... any =
tips?</DIV>
<DIV>&nbsp;</DIV>
<DIV>the orginal problem was from both a cd i got with the computer (an =
earlier=20
70mb d/l it seems) and the latest full 650mb iso i downloaded...</DIV>
<DIV>&nbsp;</DIV>
<DIV>though if i try and boot from the big iso, the installer starts =
then the=20
keyboard wont work... getting frustrated :|</DIV>
<DIV>&nbsp;</DIV></FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:soete.joel@tiscali.be" =
title=3Dsoete.joel@tiscali.be>Joel=20
  Soete</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  href=3D"mailto:nitephyre@iinet.net.au" =
title=3Dnitephyre@iinet.net.au>Matt=20
  Lewis</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Cc:</B> <A=20
  href=3D"mailto:parisc-linux@lists.parisc-linux.org"=20
  =
title=3Dparisc-linux@lists.parisc-linux.org>parisc-linux@lists.parisc-lin=
ux.org</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Saturday, January 03, =
2004 9:28=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [parisc-linux] =
Probem=20
  Installing: slang(version).deb corrupt</DIV>
  <DIV><BR></DIV><BR><BR>Matt Lewis wrote:<BR>&gt; Hi, I have a HP =
Visualize=20
  C3000 and i'm trying to install Debian HPPA on it... and every time i =
try to=20
  install the base system, whether it be from CD or http, i get the =
message of=20
  "slang(version_here).deb is corrupt. could not download"<BR>&gt; =
<BR>&gt; is=20
  there any way around this?<BR><BR>IIRC, the c3k require a more recent =
kernel=20
  and what could help is a recent net-install iso cd available =
at:<BR>&lt;<A=20
  =
href=3D"http://www.pateam.org/cd-images/testing/">http://www.pateam.org/c=
d-images/testing/</A>&gt;<BR><BR>and=20
  this install would work via a serial console (simply unplug kdb amd =
mouse and=20
  pdc will swicth automaticaly to this serial =
<BR>console).<BR><BR>&nbsp; since=20
  my machine hasn't got HPUX on it, and i cant find anywhere to download =
it=20
  :|<BR>&gt; <BR>Yes AFAIK you would have to order this CD near=20
  HP.<BR><BR>hth,<BR>Joel<BR><BR></BLOCKQUOTE></BODY></HTML>

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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] Probem Installing: slang(version).deb corrupt
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On Sun, Jan 04, 2004 at 08:46:03AM +1000, Matt Lewis wrote:
> ok, i went and got the latest testing iso, but now it's saying
> that libc6_2.2.5-6_hppa.deb was corrupt and cannot download...
> thats cd no.2 coastered and another 70mb down... any tips?

Full net install? (net boot with NFS root to run the installer?)

current lifimages are also available that match the net install ISOs.
lifimage needs to be served from a bootp server.

> the orginal problem was from both a cd i got with the computer
> (an earlier 70mb d/l it seems) and the latest full 650mb iso i downloaded...
> though if i try and boot from the big iso, the installer starts then the
> keyboard wont work... getting frustrated :|

Is the keyboard hanging using a serial or graphics console?

In general, the serial console is more stable and I suggest installing
via the serial console. Disconnect the USB keyboard and connect a DB9
serial cable to another linux box (9600, 8N1).  Once installed, upgrade
to a 2.4.23 kernel (available from ftp.p-l.o/kernels/c3000) and then
reconnect the keyboard before rebooting.

grant


From - Thu Nov 08 21:30:32 2018
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From: "Matt Lewis" <nitephyre@iinet.net.au>
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Subject: Re: [parisc-linux] Probem Installing: slang(version).deb corrupt
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no, i burnt the 70mb netinstall iso to a cd and booted off that.. i =
don't actually have another linux box i can use as a nfs server, and i =
dont have a serial cable..

with the full 650mb cd, when i boot it hangs when i get to the colour =
"welcome to debian... <continue>" screen

I'm using graphics console for all of this...

cheers, matt
  ----- Original Message -----=20
  From: Grant Grundler=20
  To: Matt Lewis=20
  Cc: parisc-linux@lists.parisc-linux.org=20
  Sent: Sunday, January 04, 2004 2:55 PM
  Subject: Re: [parisc-linux] Probem Installing: slang(version).deb =
corrupt


  On Sun, Jan 04, 2004 at 08:46:03AM +1000, Matt Lewis wrote:
  > ok, i went and got the latest testing iso, but now it's saying
  > that libc6_2.2.5-6_hppa.deb was corrupt and cannot download...
  > thats cd no.2 coastered and another 70mb down... any tips?

  Full net install? (net boot with NFS root to run the installer?)

  current lifimages are also available that match the net install ISOs.
  lifimage needs to be served from a bootp server.

  > the orginal problem was from both a cd i got with the computer
  > (an earlier 70mb d/l it seems) and the latest full 650mb iso i =
downloaded...
  > though if i try and boot from the big iso, the installer starts then =
the
  > keyboard wont work... getting frustrated :|

  Is the keyboard hanging using a serial or graphics console?

  In general, the serial console is more stable and I suggest installing
  via the serial console. Disconnect the USB keyboard and connect a DB9
  serial cable to another linux box (9600, 8N1).  Once installed, =
upgrade
  to a 2.4.23 kernel (available from ftp.p-l.o/kernels/c3000) and then
  reconnect the keyboard before rebooting.

  grant


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</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>no, i burnt the&nbsp;70mb netinstall =
iso to a cd=20
and booted off that.. i don't actually have another linux box i can use =
as a nfs=20
server, and i dont have a serial cable..</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>with the full 650mb cd, when i boot it =
hangs when i=20
get to the colour "welcome to debian... &lt;continue&gt;" =
screen</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I'm&nbsp;using graphics console for all =
of=20
this...</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>cheers, matt</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:grundler@parisc-linux.org"=20
  title=3Dgrundler@parisc-linux.org>Grant Grundler</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  href=3D"mailto:nitephyre@iinet.net.au" =
title=3Dnitephyre@iinet.net.au>Matt=20
  Lewis</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Cc:</B> <A=20
  href=3D"mailto:parisc-linux@lists.parisc-linux.org"=20
  =
title=3Dparisc-linux@lists.parisc-linux.org>parisc-linux@lists.parisc-lin=
ux.org</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Sunday, January 04, 2004 =
2:55=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [parisc-linux] =
Probem=20
  Installing: slang(version).deb corrupt</DIV>
  <DIV><BR></DIV>On Sun, Jan 04, 2004 at 08:46:03AM +1000, Matt Lewis=20
  wrote:<BR>&gt; ok, i went and got the latest testing iso, but now it's =

  saying<BR>&gt; that libc6_2.2.5-6_hppa.deb was corrupt and cannot=20
  download...<BR>&gt; thats cd no.2 coastered and another 70mb down... =
any=20
  tips?<BR><BR>Full net install? (net boot with NFS root to run the=20
  installer?)<BR><BR>current lifimages are also available that match the =
net=20
  install ISOs.<BR>lifimage needs to be served from a bootp =
server.<BR><BR>&gt;=20
  the orginal problem was from both a cd i got with the computer<BR>&gt; =
(an=20
  earlier 70mb d/l it seems) and the latest full 650mb iso i=20
  downloaded...<BR>&gt; though if i try and boot from the big iso, the =
installer=20
  starts then the<BR>&gt; keyboard wont work... getting frustrated =
:|<BR><BR>Is=20
  the keyboard hanging using a serial or graphics console?<BR><BR>In =
general,=20
  the serial console is more stable and I suggest installing<BR>via the =
serial=20
  console. Disconnect the USB keyboard and connect a DB9<BR>serial cable =
to=20
  another linux box (9600, 8N1).&nbsp; Once installed, upgrade<BR>to a =
2.4.23=20
  kernel (available from <A=20
  href=3D"ftp://ftp.p-l.o/kernels/c3000">ftp.p-l.o/kernels/c3000</A>) =
and=20
  then<BR>reconnect the keyboard before=20
rebooting.<BR><BR>grant<BR></BLOCKQUOTE></BODY></HTML>

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From: "Matt Lewis" <nitephyre@iinet.net.au>
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Subject: Re: [parisc-linux] Probem Installing: slang(version).deb corrupt
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my other pc's run win2k...

so, it seems that my only soloution is to try and install via serial =
cable? :|

----- Original Message -----=20
  From: Joel Soete=20
  To: Matt Lewis=20
  Sent: Sunday, January 04, 2004 9:48 PM
  Subject: Re: [parisc-linux] Probem Installing: slang(version).deb =
corrupt




  Matt Lewis wrote:
  > no, i burnt the 70mb netinstall iso to a cd and booted off that.. i =
don't actually have another linux box i can use as a nfs server, and i =
dont have a serial cable..

  Hmm what kind of other system/os is it available for you near the =
c3000?

  afaik the serial connection doesn't have to be a linux box: an actual =
serail console (setup to emulate vt100), a nt system with=20
  'hyperterminal' vt100 emulation would also works, as well as another =
unix system with a prgm allowing you to emulate a vt100=20
  terminalon a serial port.

  Do you have the oportunity to do the serial cable yourself? If you =
have to buy one (cheap but always usefull), it is a null-modem=20
  cable (femel 9 pin for the c3000).

  hth,
  joel




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<DIV><FONT face=3DArial size=3D2>my other pc's run win2k...</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>so, it seems that my only soloution is =
to try and=20
install via serial cable? :|</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:soete.joel@tiscali.be" =
title=3Dsoete.joel@tiscali.be>Joel=20
  Soete</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  href=3D"mailto:nitephyre@iinet.net.au" =
title=3Dnitephyre@iinet.net.au>Matt=20
  Lewis</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Sunday, January 04, 2004 =
9:48=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [parisc-linux] =
Probem=20
  Installing: slang(version).deb corrupt</DIV>
  <DIV><BR></DIV><BR><BR>Matt Lewis wrote:<BR>&gt; no, i burnt the 70mb=20
  netinstall iso to a cd and booted off that.. i don't actually have =
another=20
  linux box i can use as a nfs server, and i dont have a serial=20
  cable..<BR><BR>Hmm what kind of other system/os is it available for =
you near=20
  the c3000?<BR><BR>afaik the serial connection doesn't have to be a =
linux box:=20
  an actual serail console (setup to emulate vt100), a nt system with=20
  <BR>'hyperterminal' vt100 emulation would also works, as well as =
another unix=20
  system with a prgm allowing you to emulate a vt100 <BR>terminalon a =
serial=20
  port.<BR><BR>Do you have the oportunity to do the serial cable =
yourself? If=20
  you have to buy one (cheap but always usefull), it is a null-modem =
<BR>cable=20
  (femel 9 pin for the=20
c3000).<BR><BR>hth,<BR>joel<BR><BR><BR></BLOCKQUOTE></BODY></HTML>

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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Probem Installing: slang(version).deb corrupt
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Matt Lewis wrote:
> my other pc's run win2k...
> 
so an hyperterminal would help you ;)

> so, it seems that my only soloution is to try and install via serial cable? :|
> 
Yes, excepted if esiee team could build for you a netiso cd with k 2.4.23 from link that mentioned Grant :)

Cheers,
	Joel


> ----- Original Message ----- >   From: Joel Soete 
>   To: Matt Lewis 
>   Sent: Sunday, January 04, 2004 9:48 PM
>   Subject: Re: [parisc-linux] Probem Installing: slang(version).deb corrupt
> 
> 
> 
> 
>   Matt Lewis wrote:
>   > no, i burnt the 70mb netinstall iso to a cd and booted off that.. i don't actually have another linux box i can use as a nfs server, and i dont have a serial cable..
> 
>   Hmm what kind of other system/os is it available for you near the c3000?
> 
>   afaik the serial connection doesn't have to be a linux box: an actual serail console (setup to emulate vt100), a nt system with 
>   'hyperterminal' vt100 emulation would also works, as well as another unix system with a prgm allowing you to emulate a vt100 
>   terminalon a serial port.
> 
>   Do you have the oportunity to do the serial cable yourself? If you have to buy one (cheap but always usefull), it is a null-modem 
>   cable (femel 9 pin for the c3000).
> 
>   hth,
>   joel
> 
> 
> 
> 
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: "Matt Lewis" <nitephyre@iinet.net.au>
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Subject: Re: [parisc-linux] Probem Installing: slang(version).deb corrupt
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mmkay, how do i go about that then please?

cheers, matt :)
  ----- Original Message -----=20
  From: Joel Soete=20
  To: Matt Lewis=20
  Cc: parisc-linux@lists.parisc-linux.org=20
  Sent: Sunday, January 04, 2004 11:17 PM
  Subject: Re: [parisc-linux] Probem Installing: slang(version).deb =
corrupt




  Matt Lewis wrote:
  > my other pc's run win2k...
  >=20
  so an hyperterminal would help you ;)

  > so, it seems that my only soloution is to try and install via serial =
cable? :|
  >=20
  Yes, excepted if esiee team could build for you a netiso cd with k =
2.4.23 from link that mentioned Grant :)

  Cheers,
  Joel


  > ----- Original Message ----- >   From: Joel Soete=20
  >   To: Matt Lewis=20
  >   Sent: Sunday, January 04, 2004 9:48 PM
  >   Subject: Re: [parisc-linux] Probem Installing: slang(version).deb =
corrupt
  >=20
  >=20
  >=20
  >=20
  >   Matt Lewis wrote:
  >   > no, i burnt the 70mb netinstall iso to a cd and booted off =
that.. i don't actually have another linux box i can use as a nfs =
server, and i dont have a serial cable..
  >=20
  >   Hmm what kind of other system/os is it available for you near the =
c3000?
  >=20
  >   afaik the serial connection doesn't have to be a linux box: an =
actual serail console (setup to emulate vt100), a nt system with=20
  >   'hyperterminal' vt100 emulation would also works, as well as =
another unix system with a prgm allowing you to emulate a vt100=20
  >   terminalon a serial port.
  >=20
  >   Do you have the oportunity to do the serial cable yourself? If you =
have to buy one (cheap but always usefull), it is a null-modem=20
  >   cable (femel 9 pin for the c3000).
  >=20
  >   hth,
  >   joel
  >=20
  >=20
  >=20
  >=20
  >=20
  >=20
  > =
------------------------------------------------------------------------
  >=20
  > _______________________________________________
  > parisc-linux mailing list
  > parisc-linux@lists.parisc-linux.org
  > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>mmkay, how do i go about that then=20
please?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>cheers, matt :)</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:soete.joel@tiscali.be" =
title=3Dsoete.joel@tiscali.be>Joel=20
  Soete</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  href=3D"mailto:nitephyre@iinet.net.au" =
title=3Dnitephyre@iinet.net.au>Matt=20
  Lewis</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Cc:</B> <A=20
  href=3D"mailto:parisc-linux@lists.parisc-linux.org"=20
  =
title=3Dparisc-linux@lists.parisc-linux.org>parisc-linux@lists.parisc-lin=
ux.org</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Sunday, January 04, 2004 =
11:17=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [parisc-linux] =
Probem=20
  Installing: slang(version).deb corrupt</DIV>
  <DIV><BR></DIV><BR><BR>Matt Lewis wrote:<BR>&gt; my other pc's run=20
  win2k...<BR>&gt; <BR>so an hyperterminal would help you ;)<BR><BR>&gt; =
so, it=20
  seems that my only soloution is to try and install via serial cable?=20
  :|<BR>&gt; <BR>Yes, excepted if esiee team could build for you a =
netiso cd=20
  with k 2.4.23 from link that mentioned Grant=20
  :)<BR><BR>Cheers,<BR>Joel<BR><BR><BR>&gt; ----- Original Message ----- =

  &gt;&nbsp;&nbsp; From: Joel Soete <BR>&gt;&nbsp;&nbsp; To: Matt Lewis=20
  <BR>&gt;&nbsp;&nbsp; Sent: Sunday, January 04, 2004 9:48=20
  PM<BR>&gt;&nbsp;&nbsp; Subject: Re: [parisc-linux] Probem Installing:=20
  slang(version).deb corrupt<BR>&gt; <BR>&gt; <BR>&gt; <BR>&gt;=20
  <BR>&gt;&nbsp;&nbsp; Matt Lewis wrote:<BR>&gt;&nbsp;&nbsp; &gt; no, i =
burnt=20
  the 70mb netinstall iso to a cd and booted off that.. i don't actually =
have=20
  another linux box i can use as a nfs server, and i dont have a serial=20
  cable..<BR>&gt; <BR>&gt;&nbsp;&nbsp; Hmm what kind of other system/os =
is it=20
  available for you near the c3000?<BR>&gt; <BR>&gt;&nbsp;&nbsp; afaik =
the=20
  serial connection doesn't have to be a linux box: an actual serail =
console=20
  (setup to emulate vt100), a nt system with <BR>&gt;&nbsp;&nbsp;=20
  'hyperterminal' vt100 emulation would also works, as well as another =
unix=20
  system with a prgm allowing you to emulate a vt100 =
<BR>&gt;&nbsp;&nbsp;=20
  terminalon a serial port.<BR>&gt; <BR>&gt;&nbsp;&nbsp; Do you have the =

  oportunity to do the serial cable yourself? If you have to buy one =
(cheap but=20
  always usefull), it is a null-modem <BR>&gt;&nbsp;&nbsp; cable (femel =
9 pin=20
  for the c3000).<BR>&gt; <BR>&gt;&nbsp;&nbsp; hth,<BR>&gt;&nbsp;&nbsp;=20
  joel<BR>&gt; <BR>&gt; <BR>&gt; <BR>&gt; <BR>&gt; <BR>&gt; <BR>&gt;=20
  =
------------------------------------------------------------------------<=
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Subject: Re: [parisc-linux] Probem Installing: slang(version).deb corrupt
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On Sun, Jan 04, 2004 at 10:22:15PM +1000, Matt Lewis wrote:
> so, it seems that my only soloution is to try and install via serial cable? :|

Not "via". Use serial cable to get a working serial console.
Use the 70MB iso you already have and try again to install.

Disconnect the USB keyboard, and cycle power on the C3000.
When it comes up, PDC (firmware) should be talking to the
Serial Port 1 by default.

BTW, which 70MB ISO did you grab?
Can you post the complete URL?

grant


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Good news for glibc.
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On Thu, Jan 01, 2004 at 04:00:16PM -0500, John David Anglin wrote:
> > The main issue was that the 'start' symbol needs to be canonicalized
> > before passing on to the gmon routines. This requires entry.h to be
> 
> I still think that using __c_f_f_c for this special case is overkill.

What could we use?

Good news, I just fixed LD_PROFILE so I can actually check to see what
functions take up too much time :) I think I inadvertently fixed it for
ia64 too... what do ia64 people use to profile glibc?

c.

A tempting peek! :)

  %   cumulative   self              self     total
 time   seconds   seconds    calls  us/call  us/call  name
  0.00      0.00     0.00    14000     0.00           cfree
  0.00      0.00     0.00     6000     0.00           memset
  0.00      0.00     0.00     2004     0.00           malloc
  0.00      0.00     0.00     2003     0.00           flockfile
  0.00      0.00     0.00     2003     0.00           funlockfile
  0.00      0.00     0.00     2001     0.00           __cxa_finalize
  0.00      0.00     0.00     1002     0.00           index
  0.00      0.00     0.00     1000     0.00           __GI__dl_close
  0.00      0.00     0.00     1000     0.00           __GI__dl_open
  0.00      0.00     0.00     1000     0.00           printf
  0.00      0.00     0.00     1000     0.00           puts
  0.00      0.00     0.00     1000     0.00           strlen
  0.00      0.00     0.00        1     0.00           __libc_start_main
  0.00      0.00     0.00        1     0.00           realloc
  0.00      0.00     0.00        1     0.00           strrchr



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From: "Matt Lewis" <nitephyre@iinet.net.au>
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Subject: Re: [parisc-linux] Probem Installing: slang(version).deb corrupt
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This is a multi-part message in MIME format.

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ftp.parisc-linux.org/cd-images/testing/auto-isos/isos/palinux-2.4.21-pa6-=
20030718-netinst.iso
  ----- Original Message -----=20
  From: Grant Grundler=20
  To: Matt Lewis=20
  Cc: parisc-linux@lists.parisc-linux.org=20
  Sent: Monday, January 05, 2004 3:28 PM
  Subject: Re: [parisc-linux] Probem Installing: slang(version).deb =
corrupt


  On Sun, Jan 04, 2004 at 10:22:15PM +1000, Matt Lewis wrote:
  > so, it seems that my only soloution is to try and install via serial =
cable? :|

  Not "via". Use serial cable to get a working serial console.
  Use the 70MB iso you already have and try again to install.

  Disconnect the USB keyboard, and cycle power on the C3000.
  When it comes up, PDC (firmware) should be talking to the
  Serial Port 1 by default.

  BTW, which 70MB ISO did you grab?
  Can you post the complete URL?

  grant


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<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.3810.1700" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2><A=20
href=3D"ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/isos/palin=
ux-2.4.21-pa6-20030718-netinst.iso">ftp.parisc-linux.org/cd-images/testin=
g/auto-isos/isos/palinux-2.4.21-pa6-20030718-netinst.iso</A></FONT></DIV>=

<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:grundler@parisc-linux.org"=20
  title=3Dgrundler@parisc-linux.org>Grant Grundler</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  href=3D"mailto:nitephyre@iinet.net.au" =
title=3Dnitephyre@iinet.net.au>Matt=20
  Lewis</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Cc:</B> <A=20
  href=3D"mailto:parisc-linux@lists.parisc-linux.org"=20
  =
title=3Dparisc-linux@lists.parisc-linux.org>parisc-linux@lists.parisc-lin=
ux.org</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Monday, January 05, 2004 =
3:28=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [parisc-linux] =
Probem=20
  Installing: slang(version).deb corrupt</DIV>
  <DIV><BR></DIV>On Sun, Jan 04, 2004 at 10:22:15PM +1000, Matt Lewis=20
  wrote:<BR>&gt; so, it seems that my only soloution is to try and =
install via=20
  serial cable? :|<BR><BR>Not "via". Use serial cable to get a working =
serial=20
  console.<BR>Use the 70MB iso you already have and try again to=20
  install.<BR><BR>Disconnect the USB keyboard, and cycle power on the=20
  C3000.<BR>When it comes up, PDC (firmware) should be talking to =
the<BR>Serial=20
  Port 1 by default.<BR><BR>BTW, which 70MB ISO did you grab?<BR>Can you =
post=20
  the complete URL?<BR><BR>grant<BR></BLOCKQUOTE></BODY></HTML>

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Subject: [parisc-linux] Sun JVM on linux HPPA
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Hi,

I just received an 'old' (just 10 years) 755 and successfully installed
Linux on it and all runs fine (thanks to all for that porting).

However, I wonder if a Java virtual machine has been ported for that
environment. I checked several sites but did not found any info,
sentence, reference,... of a JSDK1.4 for linux on HPPA (well, thousands
references for JSDK on linux on intel).

Do you know if such version exist and where it could be found?

Many thanks in advance,

Cheers,
Michel




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> However, I wonder if a Java virtual machine has been ported for that
> environment. I checked several sites but did not found any info,
> sentence, reference,... of a JSDK1.4 for linux on HPPA (well, thousands
> references for JSDK on linux on intel).
> 
> Do you know if such version exist and where it could be found?

The Sun JDK is not open-source so we cannot port it to hppa-linux. There
are several efforts under way to get other JVMs to work on hppa. SableVM
is close to working. kaffe can probably also be made to work with some
effort.

Search the mail archives for more info; this has been asked several
times in the past.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Guy Martin <gmsoft@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] Missing ioctl translations
Date: Mon, 5 Jan 2004 18:19:43 +0100
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Hello all,

This patch adds missing ioctl translations for 2.4.23-pa4.
I tried to include everything which was missing.
There are usbdevfs, nbd, watchdog, bluetooth, mtd and blocks ioctl.

It's just a 'smart' copy/paste from arch/ppc64/ioctl32.c.

I'm sure it needs review by more skilled guys than me :)
Btw it compiled fine and runs fine here.

-- 
Guy Martin
Gentoo Linux - HPPA port Lead / IPv6 team
Lug Charleroi (Belgium)

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	name="parisc-2.4.23-pa4-missing-ioctl-translations.patch"
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diff -uNrX /root/dontdiff linux-2.4.23-pa4.orig/arch/parisc/kernel/ioctl32.=
c linux-2.4.23-pa4/arch/parisc/kernel/ioctl32.c
--- linux-2.4.23-pa4.orig/arch/parisc/kernel/ioctl32.c	2004-01-05 12:01:14.=
000000000 +0000
+++ linux-2.4.23-pa4/arch/parisc/kernel/ioctl32.c	2004-01-05 13:45:40.00000=
0000 +0000
@@ -48,6 +48,7 @@
 #include <linux/blk.h>
 #include <linux/elevator.h>
 #include <linux/rtc.h>
+#include <linux/pci.h>
 #include <linux/serial.h>
 #if defined(CONFIG_BLK_DEV_LVM) || defined(CONFIG_BLK_DEV_LVM_MODULE)
 /* Ugh. This header really is not clean */
@@ -67,6 +68,7 @@
 #include <asm/uaccess.h>
 #include <asm/perf.h>
 #include <linux/ethtool.h>
+#include <linux/watchdog.h>
 #include <linux/soundcard.h>
=20
 #include <linux/atm.h>
@@ -81,6 +83,15 @@
 #include <linux/sonet.h>
 #include <linux/atm_suni.h>
=20
+#include <linux/mtd/mtd.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci.h>
+
+#include <linux/usb.h>
+#include <linux/usbdevice_fs.h>
+#include <linux/nbd.h>
+
 #include <asm/module.h>	/* get #define module_map() */
=20
 /* Use this to get at 32-bit user passed pointers.=20
@@ -2810,6 +2821,488 @@
 	return rw_long(fd, AUTOFS_IOC_SETTIMEOUT, arg);
 }
=20
+struct usbdevfs_ctrltransfer32 {
+	__u8 requesttype;
+	__u8 request;
+	__u16 value;
+	__u16 index;
+	__u16 length;
+	__u32 timeout;  /* in milliseconds */
+	__u32 data;
+};
+
+#define USBDEVFS_CONTROL32           _IOWR('U', 0, struct usbdevfs_ctrltra=
nsfer32)
+
+static int do_usbdevfs_control(unsigned int fd, unsigned int cmd, unsigned=
 long arg)
+{
+	struct usbdevfs_ctrltransfer kctrl;
+	struct usbdevfs_ctrltransfer32 *uctrl;
+	mm_segment_t old_fs;
+	__u32 udata;
+	void *uptr, *kptr;
+	int err;
+
+	uctrl =3D (struct usbdevfs_ctrltransfer32 *) arg;
+
+	if (copy_from_user(&kctrl, uctrl,
+			   (sizeof(struct usbdevfs_ctrltransfer) -
+			    sizeof(void *))))
+		return -EFAULT;
+
+	if (get_user(udata, &uctrl->data))
+		return -EFAULT;
+	uptr =3D (void *) A(udata);
+
+	/* In usbdevice_fs, it limits the control buffer to a page,
+	 * for simplicity so do we.
+	 */
+	if (!uptr || kctrl.length > PAGE_SIZE)
+		return -EINVAL;
+
+	kptr =3D (void *)__get_free_page(GFP_KERNEL);
+
+	if ((kctrl.requesttype & 0x80) =3D=3D 0) {
+		err =3D -EFAULT;
+		if (copy_from_user(kptr, uptr, kctrl.length))
+			goto out;
+	}
+
+	kctrl.data =3D kptr;
+
+	old_fs =3D get_fs();
+	set_fs(KERNEL_DS);
+	err =3D sys_ioctl(fd, USBDEVFS_CONTROL, (unsigned long)&kctrl);
+	set_fs(old_fs);
+
+	if (err >=3D 0 &&
+	    ((kctrl.requesttype & 0x80) !=3D 0)) {
+		if (copy_to_user(uptr, kptr, kctrl.length))
+			err =3D -EFAULT;
+	}
+
+out:
+	free_page((unsigned long) kptr);
+	return err;
+}
+
+struct usbdevfs_bulktransfer32 {
+	unsigned int ep;
+	unsigned int len;
+	unsigned int timeout; /* in milliseconds */
+	__u32 data;
+};
+
+#define USBDEVFS_BULK32              _IOWR('U', 2, struct usbdevfs_bulktra=
nsfer32)
+
+static int do_usbdevfs_bulk(unsigned int fd, unsigned int cmd, unsigned lo=
ng arg)
+{
+	struct usbdevfs_bulktransfer kbulk;
+	struct usbdevfs_bulktransfer32 *ubulk;
+	mm_segment_t old_fs;
+	__u32 udata;
+	void *uptr, *kptr;
+	int err;
+
+	ubulk =3D (struct usbdevfs_bulktransfer32 *) arg;
+
+	if (get_user(kbulk.ep, &ubulk->ep) ||
+	    get_user(kbulk.len, &ubulk->len) ||
+	    get_user(kbulk.timeout, &ubulk->timeout) ||
+	    get_user(udata, &ubulk->data))
+		return -EFAULT;
+
+	uptr =3D (void *) A(udata);
+
+	/* In usbdevice_fs, it limits the control buffer to a page,
+	 * for simplicity so do we.
+	 */
+	if (!uptr || kbulk.len > PAGE_SIZE)
+		return -EINVAL;
+
+	kptr =3D (void *) __get_free_page(GFP_KERNEL);
+
+	if ((kbulk.ep & 0x80) =3D=3D 0) {
+		err =3D -EFAULT;
+		if (copy_from_user(kptr, uptr, kbulk.len))
+			goto out;
+	}
+
+	kbulk.data =3D kptr;
+
+	old_fs =3D get_fs();
+	set_fs(KERNEL_DS);
+	err =3D sys_ioctl(fd, USBDEVFS_BULK, (unsigned long) &kbulk);
+	set_fs(old_fs);
+
+	if (err >=3D 0 &&
+	    ((kbulk.ep & 0x80) !=3D 0)) {
+		if (copy_to_user(uptr, kptr, kbulk.len))
+			err =3D -EFAULT;
+	}
+
+out:
+	free_page((unsigned long) kptr);
+	return err;
+}
+
+/* This needs more work before we can enable it.  Unfortunately
+ * because of the fancy asynchronous way URB status/error is written
+ * back to userspace, we'll need to fiddle with USB devio internals
+ * and/or reimplement entirely the frontend of it ourselves. -DaveM
+ *
+ * The issue is:
+ *
+ *	When an URB is submitted via usbdevicefs it is put onto an
+ *	asynchronous queue.  When the URB completes, it may be reaped
+ *	via another ioctl.  During this reaping the status is written
+ *	back to userspace along with the length of the transfer.
+ *
+ *	We must translate into 64-bit kernel types so we pass in a kernel
+ *	space copy of the usbdevfs_urb structure.  This would mean that we
+ *	must do something to deal with the async entry reaping.  First we
+ *	have to deal somehow with this transitory memory we've allocated.
+ *	This is problematic since there are many call sites from which the
+ *	async entries can be destroyed (and thus when we'd need to free up
+ *	this kernel memory).  One of which is the close() op of usbdevicefs.
+ *	To handle that we'd need to make our own file_operations struct which
+ *	overrides usbdevicefs's release op with our own which runs usbdevicefs's
+ *	real release op then frees up the kernel memory.
+ *
+ *	But how to keep track of these kernel buffers?  We'd need to either
+ *	keep track of them in some table _or_ know about usbdevicefs internals
+ *	(ie. the exact layout of it's file private, which is actually defined
+ *	in linux/usbdevice_fs.h, the layout of the async queues are private to
+ *	devio.c)
+ *
+ * There is one possible other solution I considered, also involving knowl=
edge
+ * of usbdevicefs internals:
+ *
+ *	After an URB is submitted, we "fix up" the address back to the user
+ *	space one.  This would work if the status/length fields written back
+ *	by the async URB completion lines up perfectly in the 32-bit type with
+ *	the 64-bit kernel type.  Unfortunately, it does not because the iso
+ *	frame descriptors, at the end of the struct, can be written back.
+ *
+ * I think we'll just need to simply duplicate the devio URB engine here.
+ */
+#if 0
+struct usbdevfs_urb32 {
+	__u8 type;
+	__u8 endpoint;
+	__s32 status;
+	__u32 flags;
+	__u32 buffer;
+	__s32 buffer_length;
+	__s32 actual_length;
+	__s32 start_frame;
+	__s32 number_of_packets;
+	__s32 error_count;
+	__u32 signr;
+	__u32 usercontext; /* unused */
+	struct usbdevfs_iso_packet_desc iso_frame_desc[0];
+};
+
+#define USBDEVFS_SUBMITURB32       _IOR('U', 10, struct usbdevfs_urb32)
+
+static int get_urb32(struct usbdevfs_urb *kurb,
+		     struct usbdevfs_urb32 *uurb)
+{
+	if (get_user(kurb->type, &uurb->type) ||
+	    __get_user(kurb->endpoint, &uurb->endpoint) ||
+	    __get_user(kurb->status, &uurb->status) ||
+	    __get_user(kurb->flags, &uurb->flags) ||
+	    __get_user(kurb->buffer_length, &uurb->buffer_length) ||
+	    __get_user(kurb->actual_length, &uurb->actual_length) ||
+	    __get_user(kurb->start_frame, &uurb->start_frame) ||
+	    __get_user(kurb->number_of_packets, &uurb->number_of_packets) ||
+	    __get_user(kurb->error_count, &uurb->error_count) ||
+	    __get_user(kurb->signr, &uurb->signr))
+		return -EFAULT;
+
+	kurb->usercontext =3D 0; /* unused currently */
+
+	return 0;
+}
+
+/* Just put back the values which usbdevfs actually changes. */
+static int put_urb32(struct usbdevfs_urb *kurb,
+		     struct usbdevfs_urb32 *uurb)
+{
+	if (put_user(kurb->status, &uurb->status) ||
+	    __put_user(kurb->actual_length, &uurb->actual_length) ||
+	    __put_user(kurb->error_count, &uurb->error_count))
+		return -EFAULT;
+
+	if (kurb->number_of_packets !=3D 0) {
+		int i;
+
+		for (i =3D 0; i < kurb->number_of_packets; i++) {
+			if (__put_user(kurb->iso_frame_desc[i].actual_length,
+				       &uurb->iso_frame_desc[i].actual_length) ||
+			    __put_user(kurb->iso_frame_desc[i].status,
+				       &uurb->iso_frame_desc[i].status))
+				return -EFAULT;
+		}
+	}
+
+	return 0;
+}
+
+static int get_urb32_isoframes(struct usbdevfs_urb *kurb,
+			       struct usbdevfs_urb32 *uurb)
+{
+	unsigned int totlen;
+	int i;
+
+	if (kurb->type !=3D USBDEVFS_URB_TYPE_ISO) {
+		kurb->number_of_packets =3D 0;
+		return 0;
+	}
+
+	if (kurb->number_of_packets < 1 ||
+	    kurb->number_of_packets > 128)
+		return -EINVAL;
+
+	if (copy_from_user(&kurb->iso_frame_desc[0],
+			   &uurb->iso_frame_desc[0],
+			   sizeof(struct usbdevfs_iso_packet_desc) *
+			   kurb->number_of_packets))
+		return -EFAULT;
+
+	totlen =3D 0;
+	for (i =3D 0; i < kurb->number_of_packets; i++) {
+		unsigned int this_len;
+
+		this_len =3D kurb->iso_frame_desc[i].length;
+		if (this_len > 1023)
+			return -EINVAL;
+
+		totlen +=3D this_len;
+	}
+
+	if (totlen > 32768)
+		return -EINVAL;
+
+	kurb->buffer_length =3D totlen;
+
+	return 0;
+}
+
+static int do_usbdevfs_urb(unsigned int fd, unsigned int cmd, unsigned lon=
g arg)
+{
+	struct usbdevfs_urb *kurb;
+	struct usbdevfs_urb32 *uurb;
+	mm_segment_t old_fs;
+	__u32 udata;
+	void *uptr, *kptr;
+	unsigned int buflen;
+	int err;
+
+	uurb =3D (struct usbdevfs_urb32 *) arg;
+
+	err =3D -ENOMEM;
+	kurb =3D kmalloc(sizeof(struct usbdevfs_urb) +
+		       (sizeof(struct usbdevfs_iso_packet_desc) * 128),
+		       GFP_KERNEL);
+	if (!kurb)
+		goto out;
+
+	err =3D -EFAULT;
+	if (get_urb32(kurb, uurb))
+		goto out;
+
+	err =3D get_urb32_isoframes(kurb, uurb);
+	if (err)
+		goto out;
+
+	err =3D -EFAULT;
+	if (__get_user(udata, &uurb->buffer))
+		goto out;
+	uptr =3D (void *) A(udata);
+
+	err =3D -ENOMEM;
+	buflen =3D kurb->buffer_length;
+	kptr =3D kmalloc(buflen, GFP_KERNEL);
+	if (!kptr)
+		goto out;
+
+	kurb->buffer =3D kptr;
+
+	err =3D -EFAULT;
+	if (copy_from_user(kptr, uptr, buflen))
+		goto out_kptr;
+
+	old_fs =3D get_fs();
+	set_fs(KERNEL_DS);
+	err =3D sys_ioctl(fd, USBDEVFS_SUBMITURB, (unsigned long) kurb);
+	set_fs(old_fs);
+
+	if (err >=3D 0) {
+		/* XXX Shit, this doesn't work for async URBs :-( XXX */
+		if (put_urb32(kurb, uurb)) {
+			err =3D -EFAULT;
+		} else if ((kurb->endpoint & USB_DIR_IN) !=3D 0) {
+			if (copy_to_user(uptr, kptr, buflen))
+				err =3D -EFAULT;
+		}
+	}
+
+out_kptr:
+	kfree(kptr);
+
+out:
+	kfree(kurb);
+	return err;
+}
+#endif
+
+#define USBDEVFS_REAPURB32         _IOW('U', 12, u32)
+#define USBDEVFS_REAPURBNDELAY32   _IOW('U', 13, u32)
+
+static int do_usbdevfs_reapurb(unsigned int fd, unsigned int cmd, unsigned=
 long arg)
+{
+	mm_segment_t old_fs;
+	void *kptr;
+	int err;
+
+	old_fs =3D get_fs();
+	set_fs(KERNEL_DS);
+	err =3D sys_ioctl(fd,
+			(cmd =3D=3D USBDEVFS_REAPURB32 ?
+			 USBDEVFS_REAPURB :
+			 USBDEVFS_REAPURBNDELAY),
+			(unsigned long) &kptr);
+	set_fs(old_fs);
+
+	if (err >=3D 0 &&
+	    put_user(((u32)(long)kptr), (u32 *) A(arg)))
+		err =3D -EFAULT;
+
+	return err;
+}
+
+struct usbdevfs_disconnectsignal32 {
+	unsigned int signr;
+	u32 context;
+};
+
+#define USBDEVFS_DISCSIGNAL32      _IOR('U', 14, struct usbdevfs_disconnec=
tsignal32)
+
+static int do_usbdevfs_discsignal(unsigned int fd, unsigned int cmd, unsig=
ned long arg)
+{
+	struct usbdevfs_disconnectsignal kdis;
+	struct usbdevfs_disconnectsignal32 *udis;
+	mm_segment_t old_fs;
+	u32 uctx;
+	int err;
+
+	udis =3D (struct usbdevfs_disconnectsignal32 *) arg;
+
+	if (get_user(kdis.signr, &udis->signr) ||
+	    __get_user(uctx, &udis->context))
+		return -EFAULT;
+
+	kdis.context =3D (void *) (long)uctx;
+
+	old_fs =3D get_fs();
+	set_fs(KERNEL_DS);
+	err =3D sys_ioctl(fd, USBDEVFS_DISCSIGNAL, (unsigned long) &kdis);
+	set_fs(old_fs);
+
+	return err;
+}
+
+
+struct mtd_oob_buf32 {
+	u32 start;
+	u32 length;
+	u32 ptr;	/* unsigned char* */
+};
+
+#define MEMWRITEOOB32 	_IOWR('M',3,struct mtd_oob_buf32)
+#define MEMREADOOB32 	_IOWR('M',4,struct mtd_oob_buf32)
+
+static inline int=20
+mtd_rw_oob(unsigned int fd, unsigned int cmd, unsigned long arg)
+{
+	mm_segment_t 			old_fs 	=3D get_fs();
+	struct mtd_oob_buf32	*uarg 	=3D (struct mtd_oob_buf32 *)arg;
+	struct mtd_oob_buf		karg;
+	u32 tmp;
+	char *ptr;
+	int ret;
+
+	if (get_user(karg.start, &uarg->start) 		||
+	    get_user(karg.length, &uarg->length)	||
+	    get_user(tmp, &uarg->ptr))
+		return -EFAULT;
+
+	ptr =3D (char *)A(tmp);
+	if (0 >=3D karg.length)=20
+		return -EINVAL;
+
+	karg.ptr =3D kmalloc(karg.length, GFP_KERNEL);
+	if (NULL =3D=3D karg.ptr)
+		return -ENOMEM;
+
+	if (copy_from_user(karg.ptr, ptr, karg.length)) {
+		kfree(karg.ptr);
+		return -EFAULT;
+	}
+
+	set_fs(KERNEL_DS);
+	if (MEMREADOOB32 =3D=3D cmd)=20
+		ret =3D sys_ioctl(fd, MEMREADOOB, (unsigned long)&karg);
+	else if (MEMWRITEOOB32 =3D=3D cmd)
+		ret =3D sys_ioctl(fd, MEMWRITEOOB, (unsigned long)&karg);
+	else
+		ret =3D -EINVAL;
+	set_fs(old_fs);
+
+	if (0 =3D=3D ret && cmd =3D=3D MEMREADOOB32) {
+		ret =3D copy_to_user(ptr, karg.ptr, karg.length);
+		ret |=3D put_user(karg.start, &uarg->start);
+		ret |=3D put_user(karg.length, &uarg->length);
+	}
+
+	kfree(karg.ptr);
+	return ((0 =3D=3D ret) ? 0 : -EFAULT);
+}=09
+
+/* Fix sizeof(sizeof()) breakage */
+#define BLKELVGET_32	_IOR(0x12,106,int)
+#define BLKELVSET_32	_IOW(0x12,107,int)
+#define BLKBSZGET_32	_IOR(0x12,112,int)
+#define BLKBSZSET_32	_IOW(0x12,113,int)
+#define BLKGETSIZE64_32	_IOR(0x12,114,int)
+
+static int do_blkelvget(unsigned int fd, unsigned int cmd, unsigned long a=
rg)
+{
+	return sys_ioctl(fd, BLKELVGET, arg);
+}
+
+static int do_blkelvset(unsigned int fd, unsigned int cmd, unsigned long a=
rg)
+{
+	return sys_ioctl(fd, BLKELVSET, arg);
+}
+
+static int do_blkbszget(unsigned int fd, unsigned int cmd, unsigned long a=
rg)
+{
+	return sys_ioctl(fd, BLKBSZGET, arg);
+}
+
+static int do_blkbszset(unsigned int fd, unsigned int cmd, unsigned long a=
rg)
+{
+	return sys_ioctl(fd, BLKBSZSET, arg);
+}
+
+static int do_blkgetsize64(unsigned int fd, unsigned int cmd,
+			   unsigned long arg)
+{
+	return sys_ioctl(fd, BLKGETSIZE64, arg);
+}
+
+
=20
 struct serial_struct32 {
 	int	type;
@@ -3446,8 +3939,75 @@
 /* elevator */
 COMPATIBLE_IOCTL(BLKELVGET)
 COMPATIBLE_IOCTL(BLKELVSET)
+//* Big W */
+/* WIOC_GETSUPPORT not yet implemented -E */
+COMPATIBLE_IOCTL(WDIOC_GETSTATUS)
+COMPATIBLE_IOCTL(WDIOC_GETBOOTSTATUS)
+COMPATIBLE_IOCTL(WDIOC_GETTEMP)
+COMPATIBLE_IOCTL(WDIOC_SETOPTIONS)
+COMPATIBLE_IOCTL(WDIOC_KEEPALIVE)
+/* Big R */
+COMPATIBLE_IOCTL(RNDGETENTCNT)
+COMPATIBLE_IOCTL(RNDADDTOENTCNT)
+COMPATIBLE_IOCTL(RNDGETPOOL)
+COMPATIBLE_IOCTL(RNDADDENTROPY)
+COMPATIBLE_IOCTL(RNDZAPENTCNT)
+COMPATIBLE_IOCTL(RNDCLEARPOOL)
+/* Bluetooth ioctls */
+COMPATIBLE_IOCTL(HCIDEVUP)
+COMPATIBLE_IOCTL(HCIDEVDOWN)
+COMPATIBLE_IOCTL(HCIDEVRESET)
+COMPATIBLE_IOCTL(HCIDEVRESTAT)
+COMPATIBLE_IOCTL(HCIGETDEVINFO)
+COMPATIBLE_IOCTL(HCIGETDEVLIST)
+COMPATIBLE_IOCTL(HCISETRAW)
+COMPATIBLE_IOCTL(HCISETSCAN)
+COMPATIBLE_IOCTL(HCISETAUTH)
+COMPATIBLE_IOCTL(HCIINQUIRY)
+COMPATIBLE_IOCTL(PCIIOC_CONTROLLER)
+COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO)
+COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_MEM)
+COMPATIBLE_IOCTL(PCIIOC_WRITE_COMBINE)
+/* USB */
+COMPATIBLE_IOCTL(USBDEVFS_RESETEP)
+COMPATIBLE_IOCTL(USBDEVFS_SETINTERFACE)
+COMPATIBLE_IOCTL(USBDEVFS_SETCONFIGURATION)
+COMPATIBLE_IOCTL(USBDEVFS_GETDRIVER)
+COMPATIBLE_IOCTL(USBDEVFS_DISCARDURB)
+COMPATIBLE_IOCTL(USBDEVFS_CLAIMINTERFACE)
+COMPATIBLE_IOCTL(USBDEVFS_RELEASEINTERFACE)
+COMPATIBLE_IOCTL(USBDEVFS_CONNECTINFO)
+COMPATIBLE_IOCTL(USBDEVFS_HUB_PORTINFO)
+COMPATIBLE_IOCTL(USBDEVFS_RESET)
+COMPATIBLE_IOCTL(USBDEVFS_CLEAR_HALT)
+/* MTD */
+COMPATIBLE_IOCTL(MEMGETINFO)
+COMPATIBLE_IOCTL(MEMERASE)
+COMPATIBLE_IOCTL(MEMLOCK)
+COMPATIBLE_IOCTL(MEMUNLOCK)
+COMPATIBLE_IOCTL(MEMGETREGIONCOUNT)
+COMPATIBLE_IOCTL(MEMGETREGIONINFO)
+/* NBD */
+COMPATIBLE_IOCTL(NBD_SET_SOCK)
+COMPATIBLE_IOCTL(NBD_SET_BLKSIZE)
+COMPATIBLE_IOCTL(NBD_SET_SIZE)
+COMPATIBLE_IOCTL(NBD_DO_IT)
+COMPATIBLE_IOCTL(NBD_CLEAR_SOCK)
+COMPATIBLE_IOCTL(NBD_CLEAR_QUE)
+COMPATIBLE_IOCTL(NBD_PRINT_DEBUG)
+COMPATIBLE_IOCTL(NBD_SET_SIZE_BLOCKS)
+COMPATIBLE_IOCTL(NBD_DISCONNECT)
+/* Remove *PRIVATE in 2.5 */
+COMPATIBLE_IOCTL(SIOCDEVPRIVATE)
+COMPATIBLE_IOCTL(SIOCDEVPRIVATE+1)
+COMPATIBLE_IOCTL(SIOCDEVPRIVATE+2)
+COMPATIBLE_IOCTL(SIOCGMIIPHY)
+COMPATIBLE_IOCTL(SIOCGMIIREG)
+COMPATIBLE_IOCTL(SIOCSMIIREG)
 /* And these ioctls need translation */
 HANDLE_IOCTL(TIOCGSERIAL, do_tiocgserial)
+HANDLE_IOCTL(MEMREADOOB32, mtd_rw_oob)
+HANDLE_IOCTL(MEMWRITEOOB32, mtd_rw_oob)
 HANDLE_IOCTL(SIOCGIFNAME, dev_ifname32)
 HANDLE_IOCTL(SIOCGIFCONF, dev_ifconf)
 HANDLE_IOCTL(SIOCGIFFLAGS, dev_ifsioc)
@@ -3606,16 +4166,30 @@
 COMPATIBLE_IOCTL(RTC_EPOCH_SET)
 #endif
 #if defined(CONFIG_DRM) || defined(CONFIG_DRM_MODULE)
-HANDLE_IOCTL(DRM32_IOCTL_VERSION, drm32_version);
-HANDLE_IOCTL(DRM32_IOCTL_GET_UNIQUE, drm32_getsetunique);
-HANDLE_IOCTL(DRM32_IOCTL_SET_UNIQUE, drm32_getsetunique);
-HANDLE_IOCTL(DRM32_IOCTL_ADD_MAP, drm32_addmap);
-HANDLE_IOCTL(DRM32_IOCTL_INFO_BUFS, drm32_info_bufs);
-HANDLE_IOCTL(DRM32_IOCTL_FREE_BUFS, drm32_free_bufs);
-HANDLE_IOCTL(DRM32_IOCTL_MAP_BUFS, drm32_map_bufs);
-HANDLE_IOCTL(DRM32_IOCTL_DMA, drm32_dma);
-HANDLE_IOCTL(DRM32_IOCTL_RES_CTX, drm32_res_ctx);
+HANDLE_IOCTL(DRM32_IOCTL_VERSION, drm32_version)
+HANDLE_IOCTL(DRM32_IOCTL_GET_UNIQUE, drm32_getsetunique)
+HANDLE_IOCTL(DRM32_IOCTL_SET_UNIQUE, drm32_getsetunique)
+HANDLE_IOCTL(DRM32_IOCTL_ADD_MAP, drm32_addmap)
+HANDLE_IOCTL(DRM32_IOCTL_INFO_BUFS, drm32_info_bufs)
+HANDLE_IOCTL(DRM32_IOCTL_FREE_BUFS, drm32_free_bufs)
+HANDLE_IOCTL(DRM32_IOCTL_MAP_BUFS, drm32_map_bufs)
+HANDLE_IOCTL(DRM32_IOCTL_DMA, drm32_dma)
+HANDLE_IOCTL(DRM32_IOCTL_RES_CTX, drm32_res_ctx)
 #endif /* DRM */
+HANDLE_IOCTL(USBDEVFS_CONTROL32, do_usbdevfs_control)
+HANDLE_IOCTL(USBDEVFS_BULK32, do_usbdevfs_bulk)
+/*HANDLE_IOCTL(USBDEVFS_SUBMITURB32, do_usbdevfs_urb)*/
+HANDLE_IOCTL(USBDEVFS_REAPURB32, do_usbdevfs_reapurb)
+HANDLE_IOCTL(USBDEVFS_REAPURBNDELAY32, do_usbdevfs_reapurb)
+HANDLE_IOCTL(USBDEVFS_DISCSIGNAL32, do_usbdevfs_discsignal)
+/* take care of sizeof(sizeof()) breakage */
+/* elevator */
+HANDLE_IOCTL(BLKELVGET_32, do_blkelvget)
+HANDLE_IOCTL(BLKELVSET_32, do_blkelvset)
+/* block stuff */ =20
+HANDLE_IOCTL(BLKBSZGET_32, do_blkbszget)
+HANDLE_IOCTL(BLKBSZSET_32, do_blkbszset)
+HANDLE_IOCTL(BLKGETSIZE64_32, do_blkgetsize64)
 COMPATIBLE_IOCTL(PA_PERF_ON)
 COMPATIBLE_IOCTL(PA_PERF_OFF)
 COMPATIBLE_IOCTL(PA_PERF_VERSION)

--Multipart_Mon__5_Jan_2004_18:19:43_+0100_0880e6d0--


From - Thu Nov 08 21:30:33 2018
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [Status] hppa's userspace in 2004 (looking back)
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Dear list-members,

A new year is here and it's time to look back and say, hey, we did a
great job, hacked on many things and made parisc a better port!

============
GNU/binutils
============

Maybe someone can comment on this? Randolph was great enough to remove
silly ltp relocations from static binaries. Without the loader running
the ltp is never read from the DT_PLTGOT dynamic entries... so it just
made sense to translate these into dp relative relocations. dlopen from
static binaries still doesn't work, minor problem really.

I know that hppa is not really multi-arch? We have to have two separate
binaries to do 32 and 64-bit work. Someone want a project? :)

======
GNU/cc
======

jda, you're the best person to talk about how gcc is doing. I can build
kernels with 3.3.3, sadly with the anon cvs down it's messed up my usual
workflow when it comes to testing.

jda, you mentioned that the libstdc++ testsuite could be examined in
order to fix some of our failures.

============
GNU/debugger
============

Our gdb has no visibility upstream. I'm taking a hiatus from glibc to
fix gdb. I volunteered for this like 2 years ago, but glibc took a long
time to fix.

===============
ELF64 Userspace
===============

32-bit versus 64-bit signals are fixed. Along with ucontext and siginfo.
A good project might be for someone to implement the set/get/make/swap
context calls in userspace, takers are welcome! I will *not* be working
ELF64 yet, without a working gdb it's quite hard to do *anything*. I
just recently learned how to poke insns into binary files for
debugging... it's not as much fun as you think ;)

I need to do similar signal hacking for ia64 or upstream may never
accept my linux/kernel/* patches. Worst-case has us absorb the changes
into our arch directory and nobody else benefits from the framework :(

============================
Kernel<->Usrspace Atomic ops
============================

Will work on these whilst I hack gdb. Expect a first cut in a month or
so.

========
GNU/libc
========

I'm here to speak on behalf of the userspace work we have done. Glibc is
in *much* better shape than before, a year ago there were so many errors
I didn't know where to begin. Our current list of failures is down to:

make[2]: *** [/glibc-work/build-hppa/math/test-float.out] Error 136
make[2]: *** [/glibc-work/build-hppa/math/test-double.out] Error 1
make[2]: *** [/glibc-work/build-hppa/math/test-ifloat.out] Error 136
make[1]: *** [math/tests] Error 2

These three tests are related to the fact that we don't have long double
supported properly. Waiting on HP to release the code. An alternative is
a long double with only 64-bits, though this would be the *last* thing
on the list of userspace problems to fix (it would cement our long
double ABI at 64-bits).

make[2]: *** [/glibc-work/build-hppa/stdlib/tst-strtod.out] Error 1
make[2]: *** [/glibc-work/build-hppa/stdlib/bug-strtod.out] Error 1
make[1]: *** [stdlib/tests] Error 2

Same issue, no long double support, so string to double fails.

make[2]: *** [/glibc-work/build-hppa/dlfcn/tststatic.out] Error 139
make[1]: *** [dlfcn/tests] Error 2

The value of an address is interpreted as a function descriptor and
erroneously loads the wrong stuff during the jump. This will require a
bit more work to track down the particular PLABEL32 or IPLT relocation
causing the problem.

The trickiest bugs to remove were all those symbol visibility bugs,
which weren't related to symbol visibility at all. Infact due to our
erroneous function pointer implementation we were skipping all ld.so.1
COPY relocations. I ported hppa over to use the generic function
descriptor code and was finally able to process all of ld's COPY relocs.
I have no idea if this was ever a problem for symbols other than
_r_debug. Gdb may benefit from this.

Profiling is fixed thanks to Randolph! And I just completed the required
changes to get sprof working for shared libraries. I can finally enable
*other* people to track down elusive performance problems in shared
library code.

Aside from that we are no longer in danger of losing glibc, a few more
patches and upstream will be synchronized! I think Ulrich might be
growing to accept me as the hppa maintainer :)

Cheers,
Carlos.


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On Mon, Jan 05, 2004 at 06:01:30PM +1000, Matt Lewis wrote:
> ftp.parisc-linux.org/cd-images/testing/auto-isos/isos/palinux-2.4.21-pa6-20030718-netinst.iso

Matt,
that should be sufficient to do an install.


Thibaut/ESIEE,
Any chance someone could roll ISOs which uses 2.4.23+memremap+rtc fixes?
lamont is building a new 2.4.23 debian kernel you could use.

and I noticed:
	You are now connected to:
	Linux greg 2.4.18-pa45 #3 Mon Jul 1 10:45:09 CEST 2002 parisc GNU/Linux 

2.4.18 has lots of security holes.
I suggest you guys update those systems before bad things happen.

thanks,
grant


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [Status] hppa's userspace in 2004 (looking back)
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> ======
> GNU/cc
> ======
> 
> jda, you're the best person to talk about how gcc is doing. I can build
> kernels with 3.3.3, sadly with the anon cvs down it's messed up my usual
> workflow when it comes to testing.

The PA backend is in fairly reasonable shape.  Most of the remaining
PA bugs are limitations in the current implementation.  We are still
restricted in distance for floating point and branch on bit.  Frame
sizes on hppa64 are limited to < 2**36 bytes.  There is a bug which
causes arguments in const functions to get optimized away.  There is
a bug which affects constant elimination.  On the 64-bit port, constants
don't appear to be substituted/combined properly with if_then_else
insns.  As a result, some if statements don't get simplified.

2004 Projects:

1) Squash remaining bugs and limitations.
2) Finish libffi port.
3) Add PA specific stuff for java.
4) Develop TLS specification and GCC support.
5) Allow small range of floating point registers to be used
   for integer multiplication in kernel.  This should help
   64-bit kernel.
6) Thread support for ada.

As usual, I expect there will be many ups and downs in the process.
So, we won't get as far as we would like.

> jda, you mentioned that the libstdc++ testsuite could be examined in
> order to fix some of our failures.

Yes, these need to be looked at before 3.4 is released.  Some appear
to be related to long double support.  Just guessing, but I think the
rest are locale or glibc related.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Mon, Jan 05, 2004 at 12:21:46PM -0500, Carlos O'Donell wrote:
> A new year is here and it's time to look back and say, hey, we did a
> great job, hacked on many things and made parisc a better port!

Carlos, thank you for all the work you've put in over the last year
and more.  We would be significantly worse off without your efforts.
I'm sure many people who read this aren't aware just how much work you've
put in to make PA/Linux as good as it is -- and that's a compliment.

> ============
> GNU/binutils
> ============
> 
> Maybe someone can comment on this? Randolph was great enough to remove
> silly ltp relocations from static binaries. Without the loader running
> the ltp is never read from the DT_PLTGOT dynamic entries... so it just
> made sense to translate these into dp relative relocations. dlopen from
> static binaries still doesn't work, minor problem really.
> 
> I know that hppa is not really multi-arch? We have to have two separate
> binaries to do 32 and 64-bit work. Someone want a project? :)

I have an unfinished project to get all the remnants of (%sr0,xx) right
from 2-bit sr fields.  I think I can do quite a simplification here,
but I haven't got round to finishing it off.  I'll take another look
in February.

> ============
> GNU/debugger
> ============
> 
> Our gdb has no visibility upstream. I'm taking a hiatus from glibc to
> fix gdb. I volunteered for this like 2 years ago, but glibc took a long
> time to fix.

The bounty is currently set at one bottle of single malt (in the
10-20 year old range, not the 50 year old range ;-)

> ===============
> ELF64 Userspace
> ===============
> 
> 32-bit versus 64-bit signals are fixed. Along with ucontext and siginfo.
> A good project might be for someone to implement the set/get/make/swap
> context calls in userspace, takers are welcome! I will *not* be working
> ELF64 yet, without a working gdb it's quite hard to do *anything*. I
> just recently learned how to poke insns into binary files for
> debugging... it's not as much fun as you think ;)
> 
> I need to do similar signal hacking for ia64 or upstream may never
> accept my linux/kernel/* patches. Worst-case has us absorb the changes
> into our arch directory and nobody else benefits from the framework :(

There's certainly enthusiasm for these changes -- the more
32-bit-emulation code we can share, the better.  If you don't have time
for this, I can take this on.  But as I said, not till February.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [Testers wanted] New glibc with profiling fixed.
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pa'ers,

glibc 2.3.2.ds1-10

- Added profiling patches (Thanks Randolph!)
- Rebuilt glibc.
- Did not modify changelog or bump version.

Testers wanted please, in particular to test if building with -pg works
on your system and you get the expected results.

If testing goes well, these patches are going into debian-glibc's tree.

Cheers,
Carlos.


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] [Testers wanted] New glibc with profiling fixed.
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On Mon, Jan 05, 2004 at 02:48:09PM -0500, Carlos O'Donell wrote:
> 
> pa'ers,
> 
> glibc 2.3.2.ds1-10
> 
> - Added profiling patches (Thanks Randolph!)
> - Rebuilt glibc.
> - Did not modify changelog or bump version.
> 
> Testers wanted please, in particular to test if building with -pg works
> on your system and you get the expected results.
> 
> If testing goes well, these patches are going into debian-glibc's tree.

Oh yeah...

http://www.parisc-linux.org/~carlos/glibc-2.3.2-debs-2004-01-05/

c.


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Subject: Re: [parisc-linux] [Testers wanted] New glibc with profiling fixed.
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On Mon, Jan 05, 2004 at 02:48:09PM -0500, Carlos O'Donell wrote:
> Testers wanted please, in particular to test if building with -pg works
> on your system and you get the expected results.

How much testing has this had?
I'm willing to try it on various boxes if I have an idea
of the risk involved.

thanks,
grant


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On Monday 05 January 2004 20:33, Matthew Wilcox wrote:
> On Mon, Jan 05, 2004 at 12:21:46PM -0500, Carlos O'Donell wrote:
> > A new year is here and it's time to look back and say, hey, we did a
> > great job, hacked on many things and made parisc a better port!
> 
> Carlos, thank you for all the work you've put in over the last year
> and more.  We would be significantly worse off without your efforts.
> I'm sure many people who read this aren't aware just how much work you've
> put in to make PA/Linux as good as it is -- and that's a compliment.

Full ACK !
Thanks Carlos  and  JDA !

Helge


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On Mon, Jan 05, 2004 at 01:45:10PM -0700, Grant Grundler wrote:
> On Mon, Jan 05, 2004 at 02:48:09PM -0500, Carlos O'Donell wrote:
> > Testers wanted please, in particular to test if building with -pg works
> > on your system and you get the expected results.
> 
> How much testing has this had?
> I'm willing to try it on various boxes if I have an idea
> of the risk involved.

Passes all the testsuites without regressions. Doesn't kill *my* system.
It's a *minor* change to the existing glibc provided by debian, purely
to fix the FTBS that lamont saw for "roy."

c.


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hmm... okay then... so it -should- work.. but it didnt...=20

is there any other linux that will work on pa-risc?
  ----- Original Message -----=20
  From: Grant Grundler=20
  To: Matt Lewis=20
  Cc: parisc-linux@lists.parisc-linux.org=20
  Sent: Tuesday, January 06, 2004 4:24 AM
  Subject: Re: [parisc-linux] Probem Installing: slang(version).deb =
corrupt


  On Mon, Jan 05, 2004 at 06:01:30PM +1000, Matt Lewis wrote:
  > =
ftp.parisc-linux.org/cd-images/testing/auto-isos/isos/palinux-2.4.21-pa6-=
20030718-netinst.iso

  Matt,
  that should be sufficient to do an install.


  Thibaut/ESIEE,
  Any chance someone could roll ISOs which uses 2.4.23+memremap+rtc =
fixes?
  lamont is building a new 2.4.23 debian kernel you could use.

  and I noticed:
  You are now connected to:
  Linux greg 2.4.18-pa45 #3 Mon Jul 1 10:45:09 CEST 2002 parisc =
GNU/Linux=20

  2.4.18 has lots of security holes.
  I suggest you guys update those systems before bad things happen.

  thanks,
  grant


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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.3810.1700" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>hmm... okay then... so it -should- =
work.. but it=20
didnt... </FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>is there any other linux that will work =
on=20
pa-risc?</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:grundler@parisc-linux.org"=20
  title=3Dgrundler@parisc-linux.org>Grant Grundler</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  href=3D"mailto:nitephyre@iinet.net.au" =
title=3Dnitephyre@iinet.net.au>Matt=20
  Lewis</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Cc:</B> <A=20
  href=3D"mailto:parisc-linux@lists.parisc-linux.org"=20
  =
title=3Dparisc-linux@lists.parisc-linux.org>parisc-linux@lists.parisc-lin=
ux.org</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, January 06, 2004 =
4:24=20
  AM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [parisc-linux] =
Probem=20
  Installing: slang(version).deb corrupt</DIV>
  <DIV><BR></DIV>On Mon, Jan 05, 2004 at 06:01:30PM +1000, Matt Lewis=20
  wrote:<BR>&gt; <A=20
  =
href=3D"ftp://ftp.parisc-linux.org/cd-images/testing/auto-isos/isos/palin=
ux-2.4.21-pa6-20030718-netinst.iso">ftp.parisc-linux.org/cd-images/testin=
g/auto-isos/isos/palinux-2.4.21-pa6-20030718-netinst.iso</A><BR><BR>Matt,=
<BR>that=20
  should be sufficient to do an =
install.<BR><BR><BR>Thibaut/ESIEE,<BR>Any chance=20
  someone could roll ISOs which uses 2.4.23+memremap+rtc =
fixes?<BR>lamont is=20
  building a new 2.4.23 debian kernel you could use.<BR><BR>and I=20
  noticed:<BR>You are now connected to:<BR>Linux greg 2.4.18-pa45 #3 Mon =
Jul 1=20
  10:45:09 CEST 2002 parisc GNU/Linux <BR><BR>2.4.18 has lots of =
security=20
  holes.<BR>I suggest you guys update those systems before bad things=20
  happen.<BR><BR>thanks,<BR>grant<BR></BLOCKQUOTE></BODY></HTML>

------=_NextPart_000_0017_01C3D43A.C77C9C50--



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Subject: Re: [parisc-linux] Re: [Status] hppa's userspace in 2004 (looking
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> > Carlos, thank you for all the work you've put in over the last year
> > and more.  We would be significantly worse off without your efforts.
> > I'm sure many people who read this aren't aware just how much work you've
> > put in to make PA/Linux as good as it is -- and that's a compliment.

Same here; there are still a lot of issues with my C3000, but that does
not mean it's not great; the machine runs and is stable, even with the
USB and frame buffer issues.  Totally stable.  I am VERY PLEASED with
the progress that has been made on HPPA linux; this machine is now one
I depend on, because I know I can.

Thanks for all the work.

-Chris




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On Mon, Jan 05, 2004 at 05:00:48PM -0700, Christopher Strong wrote:
> Same here; there are still a lot of issues with my C3000, but that does
> not mean it's not great; the machine runs and is stable, even with the
> USB and frame buffer issues.  Totally stable.  I am VERY PLEASED with
> the progress that has been made on HPPA linux; this machine is now one
> I depend on, because I know I can.
> 
> Thanks for all the work.

Thanks guys! The learning process is worth it's weight in gold :)
I'm always glad to hear people rely on their parisc-linux machines to
get work done. Hey, my c3k runs all the home accounts in the lab!

c.



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On Mon, Jan 05, 2004 at 01:48:54PM -0500, John David Anglin wrote:
> As usual, I expect there will be many ups and downs in the process.
> So, we won't get as far as we would like.
> 
> > jda, you mentioned that the libstdc++ testsuite could be examined in
> > order to fix some of our failures.
> 
> Yes, these need to be looked at before 3.4 is released.  Some appear
> to be related to long double support.  Just guessing, but I think the
> rest are locale or glibc related.

Does this seem like a reasonable triage list?

a. gdb.
b. atomic kernel ops.
c. libstdc++ failures.

c.



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> Does this seem like a reasonable triage list?
> 
> a. gdb.
> b. atomic kernel ops.
> c. libstdc++ failures.

I expect GCC 3.4 is coming in 2-3 months, although there isn't a definite
timeline yet.  Would you like to try to get atomic kernel ops in 2.6.x?
How important is the kernel timeline for this work?  We missed gdb 6.0.
A couple of quick hacks allow 6.0 to build for hppa-linux.  Bug fixes are
another matter.

Probably, the v3 issues involve doing enough research to file a PR if
the problem is generic, fix the problem if it is GCC hppa specific.
If a problem turns out to be glibc/kernel related, we can wait for
a fix ;)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Tue, Jan 06, 2004 at 01:16:44AM -0500, John David Anglin wrote:
> > Does this seem like a reasonable triage list?
> > 
> > a. gdb.
> > b. atomic kernel ops.
> > c. libstdc++ failures.
> 
> I expect GCC 3.4 is coming in 2-3 months, although there isn't a definite
> timeline yet.  Would you like to try to get atomic kernel ops in 2.6.x?
> How important is the kernel timeline for this work?  We missed gdb 6.0.
> A couple of quick hacks allow 6.0 to build for hppa-linux.  Bug fixes are
> another matter.

No timeline, just icing.
 
> Probably, the v3 issues involve doing enough research to file a PR if
> the problem is generic, fix the problem if it is GCC hppa specific.
> If a problem turns out to be glibc/kernel related, we can wait for
> a fix ;)

I can interleave b,c in order to help you out? :)

80% gdb.
10% atomic ops.
10% libstc++ failures.

c.


From - Thu Nov 08 21:30:34 2018
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From: Ryan Bradetich <ryan_bradetich@hp.com>
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Subject: [parisc-linux] LMBench results on for the C200 for HP-UX 10.20,
	Linux 2.4.24-pa0, and Linux 2.6.0-pa8
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Hello all,

Thought people might be intersted in the LMBench results between HP-UX
10.20, Linux 2.4 and Linux 2.6.  All tests were performed on the same 
hardware and not optomized in any way for the tests.

Thanks,

- Ryan


                 L M B E N C H  2 . 0   S U M M A R Y
                 ------------------------------------


Basic system parameters
----------------------------------------------------
Host                 OS Description              Mhz
                                                    
--------- ------------- ----------------------- ----
vega      HP-UX B.10.20    hppa2.0-hp-hpux10.20  200
vega      HP-UX B.10.20    hppa2.0-hp-hpux10.20  200
vega      HP-UX B.10.20    hppa2.0-hp-hpux10.20  200
vega      Linux 2.6.0-p       hppa2.0-linux-gnu  200
vega      Linux 2.6.0-p       hppa2.0-linux-gnu  200
vega      Linux 2.6.0-p       hppa2.0-linux-gnu  200
vega      Linux 2.4.24-       hppa2.0-linux-gnu  200
vega      Linux 2.4.24-       hppa2.0-linux-gnu  200
vega      Linux 2.4.24-       hppa2.0-linux-gnu  200

Processor, Processes - times in microseconds - smaller is better
----------------------------------------------------------------
Host                 OS  Mhz null null      open selct sig  sig  fork
exec sh  
                             call  I/O stat clos TCP   inst hndl proc
proc proc
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ----
---- ----
vega      HP-UX B.10.20  200 0.83      26.1 36.0 200.6 7.97 30.2 1905
5220 19.K
vega      HP-UX B.10.20  200 0.83      24.5 36.0 147.4 7.92 30.0 1910
5133 19.K
vega      HP-UX B.10.20  200 0.83      24.3 36.3 145.0 7.90 29.9 1924
5258 19.K
vega      Linux 2.6.0-p  200 1.46 2.45 14.4 19.3 150.3 5.65 28.9 5353
21.K 66.K
vega      Linux 2.6.0-p  200 1.44 2.43 14.4 18.1       5.63 28.9 5344
21.K 65.K
vega      Linux 2.6.0-p  200 1.46 2.45 14.4 18.1 149.8 5.65 28.8 5492
23.K 65.K
vega      Linux 2.4.24-  200 1.37 2.80 14.7 18.9 148.2 4.96 29.2 10.K
42.K 111K
vega      Linux 2.4.24-  200 1.37 2.80 14.7 18.9 148.0 4.97 29.2 11.K
42.K 111K
vega      Linux 2.4.24-  200 1.37 2.80 14.7 18.9 148.2 4.97 29.0 11.K
42.K 111K

Context switching - times in microseconds - smaller is better
-------------------------------------------------------------
Host                 OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K
16p/64K
                        ctxsw  ctxsw  ctxsw ctxsw  ctxsw   ctxsw   ctxsw
--------- ------------- ----- ------ ------ ------ ------ -------
-------
vega      HP-UX B.10.20 9.110   16.3   43.0  421.0  391.6   178.4  
427.5
vega      HP-UX B.10.20 9.510  279.0   19.5   23.1  394.9   168.5  
429.3
vega      HP-UX B.10.20 9.230   10.1 1678.0  365.8  363.0    50.4  
428.4
vega      Linux 2.6.0-p 4.830   43.9  163.9   56.1  187.4    60.1  
189.0
vega      Linux 2.6.0-p 4.530   47.2  164.7   58.1  185.7    59.7  
187.3
vega      Linux 2.6.0-p 5.670   45.2  163.5   57.8  193.7    59.1  
190.1
vega      Linux 2.4.24- 2.120   42.5  159.7   52.6  181.0    54.2  
182.3
vega      Linux 2.4.24- 3.490   42.0  163.5   52.9  182.2    55.3  
184.7
vega      Linux 2.4.24- 3.410   42.6  159.6   52.0  182.1    54.9  
184.3

*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host                 OS 2p/0K  Pipe AF     UDP  RPC/   TCP  RPC/ TCP
                        ctxsw       UNIX         UDP         TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
vega      HP-UX B.10.20 9.110  48.7 78.7 117.6 500.2 127.5 300.2 313.
vega      HP-UX B.10.20 9.510  47.0 65.6 115.0 464.2 166.3 734.1 284.
vega      HP-UX B.10.20 9.230  47.9 77.5 112.4 506.4 127.1 325.6 300.
vega      Linux 2.6.0-p 4.830  36.9 53.3  80.7 235.8 109.6 251.7 490.
vega      Linux 2.6.0-p 4.530  31.7 53.5 140.2 230.2 108.0 286.3 469.
vega      Linux 2.6.0-p 5.670  36.6 54.0 143.1 232.5 107.9 283.5 483.
vega      Linux 2.4.24- 2.120  57.1 46.4  73.5 226.9  93.5 300.2 9958
vega      Linux 2.4.24- 3.490  60.7 46.3  73.2 238.7  97.0 299.6 9957
vega      Linux 2.4.24- 3.410  52.8 46.4  73.4 234.9  92.4 304.5 9958

File & VM system latencies in microseconds - smaller is better
--------------------------------------------------------------
Host                 OS   0K File      10K File      Mmap    Prot   
Page	
                        Create Delete Create Delete  Latency Fault  
Fault 
--------- ------------- ------ ------ ------ ------  ------- -----  
----- 
vega      HP-UX B.10.20  14.1K 8403.4  20.8K 8474.6  7834.1K  24.1  
10.7K
vega      HP-UX B.10.20  13.9K 8333.3  20.8K 8474.6  7857.6K  25.6  
10.7K
vega      HP-UX B.10.20  13.9K 8333.3  20.8K 8474.6  7817.5K  29.9  
10.7K
vega      Linux 2.6.0-p  381.4   95.2 1097.7  225.4    78.0K 2016.   
30.0
vega      Linux 2.6.0-p  378.9   95.2 1262.6  226.3    77.1K 2117.   
30.0
vega      Linux 2.6.0-p  376.5   94.9 1273.9  223.9    76.5K 2049.   
30.0
vega      Linux 2.4.24-  361.1  117.2 1087.0  228.3    72.8K 1619.   
28.0
vega      Linux 2.4.24-  361.4  117.2 1634.0  229.9    73.4K 1638.   
29.0
vega      Linux 2.4.24-  361.3  116.8 1319.3  232.2    73.3K 1638.   
28.0

*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------
Host                OS  Pipe AF    TCP  File   Mmap  Bcopy  Bcopy  Mem  
Mem
                             UNIX      reread reread (libc) (hand) read
write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ----
-----
vega      HP-UX B.10.20 168. 102. 88.1  103.0  137.6   79.1   63.7 122.
102.3
vega      HP-UX B.10.20 179. 99.5 97.7  101.4  136.3   85.0   64.1 121.
104.7
vega      HP-UX B.10.20 180. 102. 108.  103.2  136.2   82.2   63.7 122.
102.8
vega      Linux 2.6.0-p 19.4 19.9 5.65   31.4  246.4  126.0  129.4 249.
215.2
vega      Linux 2.6.0-p 19.5 20.2 5.67   31.4  245.8  125.9  129.4 249.
214.8
vega      Linux 2.6.0-p 19.4 20.2 5.86   31.4  245.6  125.8  129.4 249.
214.6
vega      Linux 2.4.24- 19.6 19.8 9.02   32.0  246.7  125.8  129.5 249.
215.3
vega      Linux 2.4.24- 19.6 19.7 9.50   31.7  246.4  126.0  129.4 249.
215.1
vega      Linux 2.4.24- 19.6 19.8 9.40   35.5  246.2  125.9  129.4 249.
214.9

Memory latencies in nanoseconds - smaller is better
    (WARNING - may not be correct, check graphs)
---------------------------------------------------
Host                 OS   Mhz  L1 $   L2 $    Main mem    Guesses
--------- -------------  ---- ----- ------    --------    -------
vega      HP-UX B.10.20   200  15.0   15.0  539.0    No L1 cache?
vega      HP-UX B.10.20   200  15.0   15.0  592.3    No L1 cache?
vega      HP-UX B.10.20   200  15.0   15.0  581.0    No L1 cache?
vega      Linux 2.6.0-p   200  15.0   15.0  284.7    No L1 cache?
vega      Linux 2.6.0-p   200  15.0   15.0  284.6    No L1 cache?
vega      Linux 2.6.0-p   200  15.0   15.0  284.7    No L1 cache?
vega      Linux 2.4.24-   200  15.0   15.0  284.8    No L1 cache?
vega      Linux 2.4.24-   200  15.0   15.0  284.6    No L1 cache?
vega      Linux 2.4.24-   200  15.0   15.0  284.8    No L1 cache?




From - Thu Nov 08 21:30:34 2018
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From: Riccardo <rollei@tiscalinet.it>
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Subject: Re: [parisc-linux] LMBench results on for the C200 for HP-UX 10.20,
	Linux 2.4.24-pa0, and Linux 2.6.0-pa8
Date: Wed, 07 Jan 2004 10:43:59 +0100
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Ryan Bradetich wrote:
> 
> Hello all,
> 
> Thought people might be intersted in the LMBench results between HP-UX
> 10.20, Linux 2.4 and Linux 2.6.  All tests were performed on the same
> hardware and not optomized in any way for the tests.
Yes, very interesting. I'm using gentoo with a 2.4 kernel and felt the
box sooo slow sometimes while other times it seems reasonable.
For example doing setiathome crunching linux is 40% slower. Or
compilation is awfully slow (big projects like gcc 3.2.2 can take 2-3
times the time on hp-ux 10.20).

It seems that in some "traditional" unix areas HP-UX is faster while in
other it is slower.


> ----------------------------------------------------------------
> Host                 OS  Mhz null null      open selct sig  sig  fork
> exec sh
>                              call  I/O stat clos TCP   inst hndl proc
> proc proc
> --------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ----
> ---- ----
> vega      HP-UX B.10.20  200 0.83      26.1 36.0 200.6 7.97 30.2 1905
> 5220 19.K
> vega      HP-UX B.10.20  200 0.83      24.5 36.0 147.4 7.92 30.0 1910
> 5133 19.K
> vega      HP-UX B.10.20  200 0.83      24.3 36.3 145.0 7.90 29.9 1924
> 5258 19.K
> vega      Linux 2.6.0-p  200 1.46 2.45 14.4 19.3 150.3 5.65 28.9 5353
> 21.K 66.K
> vega      Linux 2.6.0-p  200 1.44 2.43 14.4 18.1       5.63 28.9 5344
> 21.K 65.K
> vega      Linux 2.6.0-p  200 1.46 2.45 14.4 18.1 149.8 5.65 28.8 5492
> 23.K 65.K
> vega      Linux 2.4.24-  200 1.37 2.80 14.7 18.9 148.2 4.96 29.2 10.K
> 42.K 111K
> vega      Linux 2.4.24-  200 1.37 2.80 14.7 18.9 148.0 4.97 29.2 11.K
> 42.K 111K
> vega      Linux 2.4.24-  200 1.37 2.80 14.7 18.9 148.2 4.97 29.0 11.K
> 42.K 111K
HP-UX fork is fast! linux 2.6 seems to bring some relief here. I always
marvel how fast HP-UX is when responding to a telnet login.
Instantaneus. Probably fork() speed compensates the lower latency linux
has in other areas.

 

> 
> *Local* Communication latencies in microseconds - smaller is better
> -------------------------------------------------------------------
> Host                 OS 2p/0K  Pipe AF     UDP  RPC/   TCP  RPC/ TCP
>                         ctxsw       UNIX         UDP         TCP conn
> --------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
> vega      HP-UX B.10.20 9.110  48.7 78.7 117.6 500.2 127.5 300.2 313.
> vega      HP-UX B.10.20 9.510  47.0 65.6 115.0 464.2 166.3 734.1 284.
> vega      HP-UX B.10.20 9.230  47.9 77.5 112.4 506.4 127.1 325.6 300.
> vega      Linux 2.6.0-p 4.830  36.9 53.3  80.7 235.8 109.6 251.7 490.
> vega      Linux 2.6.0-p 4.530  31.7 53.5 140.2 230.2 108.0 286.3 469.
> vega      Linux 2.6.0-p 5.670  36.6 54.0 143.1 232.5 107.9 283.5 483.
> vega      Linux 2.4.24- 2.120  57.1 46.4  73.5 226.9  93.5 300.2 9958
> vega      Linux 2.4.24- 3.490  60.7 46.3  73.2 238.7  97.0 299.6 9957
> vega      Linux 2.4.24- 3.410  52.8 46.4  73.4 234.9  92.4 304.5 9958

seems that for AF_UNIX and TCP pipes 2.42. UDP is almost the half than
2.6

 
> *Local* Communication bandwidths in MB/s - bigger is better
> -----------------------------------------------------------
> Host                OS  Pipe AF    TCP  File   Mmap  Bcopy  Bcopy  Mem
> Mem
>                              UNIX      reread reread (libc) (hand) read
> write
> --------- ------------- ---- ---- ---- ------ ------ ------ ------ ----
> -----
> vega      HP-UX B.10.20 168. 102. 88.1  103.0  137.6   79.1   63.7 122.
> 102.3
> vega      HP-UX B.10.20 179. 99.5 97.7  101.4  136.3   85.0   64.1 121.
> 104.7
> vega      HP-UX B.10.20 180. 102. 108.  103.2  136.2   82.2   63.7 122.
> 102.8
> vega      Linux 2.6.0-p 19.4 19.9 5.65   31.4  246.4  126.0  129.4 249.
> 215.2
> vega      Linux 2.6.0-p 19.5 20.2 5.67   31.4  245.8  125.9  129.4 249.
> 214.8
> vega      Linux 2.6.0-p 19.4 20.2 5.86   31.4  245.6  125.8  129.4 249.
> 214.6
> vega      Linux 2.4.24- 19.6 19.8 9.02   32.0  246.7  125.8  129.5 249.
> 215.3
> vega      Linux 2.4.24- 19.6 19.7 9.50   31.7  246.4  126.0  129.4 249.
> 215.1
> vega      Linux 2.4.24- 19.6 19.8 9.40   35.5  246.2  125.9  129.4 249.
> 214.9

traditional pipe, af_unix and TCP are impressive for hp-ux. Really up to
ten times the bandwidth?. But memory is clear an advantage for linux.


Thanks for the testing.

-R


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Subject: Re: [parisc-linux] LMBench results on for the C200 for HP-UX 10.20,
	Linux 2.4.24-pa0, and Linux 2.6.0-pa8
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> HP-UX fork is fast! linux 2.6 seems to bring some relief here. I always
> marvel how fast HP-UX is when responding to a telnet login.
> Instantaneus. Probably fork() speed compensates the lower latency linux
> has in other areas.

The reason why fork() is so slow on palinux is that we flush the entire
cache for each fork() operation. this is clearly a very bad thing.
unfortunately this doesn't seem like a simple thing to fix. From some
previous discussions it seems like we don't need to do the cache
flushing for fork(), but when i got rid of it the system crashes very
quickly. Possibly the per-fork cache flush is masking other bugs in the
kernel cache flushing infrastructure.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: David Huggins-Daines <dhd@pobox.com>
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Subject: [parisc-linux] C200 available to good home (Pittsburgh area)
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Hello,

I have a C200 which I had planned to do some porting work on.  
Unfortunately it just doesn't seem like I will ever have time to work 
on PA-Linux stuff in the future, and so the thing is just taking up (a 
lot) of space.  Is there anyone out there who could put this to better 
use?  I don't want to sell it, just pass it on to someone who I know is 
going to use it for development purposes.

I'd prefer someone local (I'm in Pittsburgh, Pennsylvania, USA) because 
it's quite big and heavy (yes, I know, it's a "workstation", but 
still).

It is quite loaded down with RAM and multiple video cards and would be 
good for someone doing X11 or framebuffer work.

Please Cc: me on any replies to the list ... thanks.



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> glibc 2.3.2.ds1-10
> 
> - Added profiling patches (Thanks Randolph!)

The GCC profiling tests still segfault.  It looks like crtn.o
hasn't been updated.  Did I miss something?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> Did I miss something?

Yup.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Riccardo <rollei@tiscalinet.it>
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Subject: [parisc-linux] scsi problem on a scorpio (715)
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Hello,

I had a lot of problems using linux on that box (I'm using gentoo,
2.4.23 series)

The problems manifest themselves in the following ways:

A lot of different HD's (even HP spare parts) freeze up the kernel
during mkfs.
I got the box then worning with a luck of getting two disk formatted.
The stability was not very high. Sometimes it compiled for 50 hours, but
sometimes when the disk grinded more... freeze.
Guy Martin suggested me to change the TAG default value in the NCR
53x700 driver from 16 to 8 since that is what HP used. I didn't get a
big improvment. I still have one of the inriminated disks. Issuing
several mkfs (usually the second) freezes the kernel.

Today during emerge sync the system freezed. I rebooted and the computer
zasn't responding to ssh or ping. When I hooked up a monitor I got a
hole load of errors clearly related to scsi.

I toke a picture of the monitor.

http://dev.gentoo.org/~gmsoft/pics/scsi-failure.jpg


-Ric


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Subject: Re: [parisc-linux] scsi problem on a scorpio (715)
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Hi,

On Thu, 8 Jan 2004, Riccardo wrote:

[snip]
> A lot of different HD's (even HP spare parts) freeze up the kernel
> during mkfs.
[snip]
> Guy Martin suggested me to change the TAG default value in the NCR
> 53x700 driver from 16 to 8 since that is what HP used. I didn't get a
> big improvment. I still have one of the inriminated disks. Issuing
> several mkfs (usually the second) freezes the kernel.

I had a similar problem and fixed it by setting tags to 8 (my problem
drive is a Quantum Fireball). Grant Grundler mentioned that "as of 5 years
ago, HP-UX default was 8 for servers and 2 for workstations"; as the 715
is a workstation it might be worth trying setting tags to 2 and seeing
what happens?

What drives have you tried, out of curiosity?

Cheers, Steve


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On Wed, Jan 07, 2004 at 10:30:30PM -0400, Steve Bromwich wrote:
> Grant Grundler mentioned that "as of 5 years
> ago, HP-UX default was 8 for servers and 2 for workstations";

The drives shipped with workstations had "Write Cache Enable" (aka WCE)
turned on by default.  Not good if you really care about your data.
But Tag queue depth of 2 works great because the drive will immediately
report "success" until it's on-board cache was full.

>  as the 715
> is a workstation it might be worth trying setting tags to 2 and seeing
> what happens?

Unless performance is more important than strict correctness, I still
reccommend tag queue depth of 8 and disable "Write Cache" setting.
Reducing queue depth further typically only limits performance.

I suspect something else is wrong in Riccardo's case. But it wouldn't
hurt disable queue tags completely and see if that is at least stable.

root@debian:~# sginfo -c /dev/sda

Data from Caching Page
----------------------
Write Cache                        0
Read Cache                         1
Prefetch units                     0
Demand Read Retention Priority     0
Demand Write Retention Priority    0
Disable Pre-fetch Transfer Length  65535
Minimum Pre-fetch                  0
Maximum Pre-fetch                  65535
Maximum Pre-fetch Ceiling          65535

hth,
grant


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From: "Mike Brice" <mike_brice@hotmail.com>
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Subject: [parisc-linux] PA-RISC LINUX (0.9.3 release): Hardware Test on HP J
	workstation (J280)
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Please add me to your PA/Linux mailing list.

The PA-RISC LINUX (0.9.3 release) tests work on the HP J workstation 
hardware.  Does it work on the HP J280 workstation? Do you have test 
results?

Thanks,

:-) Mike Brice
Internet: mike_brice@hotmail.com

_________________________________________________________________
Tired of slow downloads? Compare online deals from your local high-speed 
providers now.  https://broadband.msn.com



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] scsi problem on a scorpio (715)
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Cc: Riccardo <rollei@tiscalinet.it>,
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	Steve Bromwich <hppa@fop.ns.ca>
To: Grant Grundler <grundler@parisc-linux.org>
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> On Wed, Jan 07, 2004 at 10:30:30PM -0400, Steve Bromwich wrote:
> Unless performance is more important than strict correctness, I still
> reccommend tag queue depth of 8 and disable "Write Cache" setting.
> Reducing queue depth further typically only limits performance.

My entire cluster was made up of scorpio boxes 715/50's, and I *never*
had them run stably with anything but a tag queue depth of 1.

Grant, I'm pretty sure me and you had this exact conversation like 2
years ago :)

c.



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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] scsi problem on a scorpio (715)
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> My entire cluster was made up of scorpio boxes 715/50's, and I *never*
> had them run stably with anything but a tag queue depth of 1.
> 
> Grant, I'm pretty sure me and you had this exact conversation like 2
> years ago :)

Also, remember the issues that I had under HP-UX 10.20 with some Seagate
Elite drives.  I believe that I had to set the depth to 1 for these
drives to get the system to run reliably.  Tagged queuing is broken
on most old drives.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] PA-RISC LINUX (0.9.3 release): Hardware Test on HP
	J workstation (J280)
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On Wed, Jan 07, 2004 at 10:06:23PM -0600, Mike Brice wrote:
> Please add me to your PA/Linux mailing list.

See http://lists.parisc-linux.org/

> The PA-RISC LINUX (0.9.3 release) tests work on the HP J workstation 
> hardware.

Don't use 0.9.3 release. See debian.org/ports/hppa.

>   Does it work on the HP J280 workstation? Do you have test results?

See http://www.pateam.org/list.html
(kudos to ESIEE team for putting that together and maintain it)

grant


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On Wed, Jan 07, 2004 at 11:14:06PM -0500, Carlos O'Donell wrote:
> My entire cluster was made up of scorpio boxes 715/50's, and I *never*
> had them run stably with anything but a tag queue depth of 1.
> 
> Grant, I'm pretty sure me and you had this exact conversation like 2
> years ago :)

Dude! you *are* good.

Search for "scsi queue tags 715/50" yielded:
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-February/015465.html

grant


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [Kernel Hacker Challenge #1] Make my loop.c run
	faster, fly higher, and win big!
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pa,

============================================
UP PA8700 @650Mhz.
============================================

round 1
...
round 999
round 1000

real    0m1.559s
user    0m0.000s
sys     0m1.430s

Too slow joe! :)

============================================
UP PIII @450MHz
============================================

round 1
...
round 999
round 1000

real    0m0.303s
user    0m0.010s
sys     0m0.090s <- Look at that sys time!

*Fast*

============================================
Why is it so slow on hppa?
============================================

Profile reveals some hints:

   161 total                                      0.0001
    89 flush_user_dcache_range_asm                2.4722
    48 flush_user_icache_range_asm                1.3333
     8 pc_in_user_space                           0.0667
     2 zap_page_range                             0.0016
     2 __muldi3                                   0.0071
     1 syscall_restore                            0.0041
     1 rmqueue                                    0.0007
     1 normal_poll                                0.0020
     1 n_tty_receive_buf                          0.0003
     1 memset                                     0.0054
     1 kmalloc                                    0.0023
     1 get_unused_fd                              0.0021
     1 fget                                       0.0139
     1 fdsync                                     0.0500
     1 do_mmap_pgoff                              0.0006
     1 __down_read_trylock                        0.0208
     1 $lctu_loop                                 0.0833

---
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>

#define BUFLEN 512
#define PAGESIZE 4096
#define PAGEMASK 0x1888

/*
 
 Sample trace of what glibc does during dlopen/dlclose pair ...
   
    968 open("./tst-tlsmod13.so", O_RDONLY)     = 3
    969 read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\10"..., 512) = 512
    970 fstat64(3, {st_mode=0, st_size=4294967297000, ...}) = 0
*NO*971 getcwd("/home/carlos/src/glibc-work/tests/tst-tls13", 128) = 44
    972 mmap(NULL, 69232, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x401b2000
    973 mprotect(0x401b3000, 65136, PROT_NONE)  = 0
    974 mmap(0x401c2000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x401c2000
    975 close(3)                                = 0
*NO*976 munmap(0x401a1000, 69352)               = 0
    977 munmap(0x401b2000, 69232)               = 0

Compile this code with:

	gcc -o loop loop.c

Create the test file with:

	dd if=/dev/zero of=./testdata bs=1024 count=70

*/

int
main (void)
{
  int i;
  char buffer[BUFLEN];
  void * start = NULL;
  int offset = 0;
  void * end = NULL;
  size_t length = 0;
  int filefd;
  void * filemap;
  void * filemap2;
  struct stat statbuf;
  
  for (i = 0; i < 1000;)
    {
      printf ("round %d\n",++i);

      /* File is 70 * 1024 bytes */
      filefd = open("./testdata", O_RDONLY);
      if (filefd == -1) { perror("open"); exit(1); }
      
      /* Read 512 bytes into a buffer... or less */
      length = read(filefd, buffer, BUFLEN);
      if (length == 0) { perror("read"); exit(1); }
       
      /* Find the real size */
      if (fstat(filefd, &statbuf) != 0) { perror("fstat"); exit(1); }
      length = statbuf.st_size;
      
      /* mmap without protection */
      filemap = mmap (start, length, PROT_READ|PROT_EXEC, MAP_PRIVATE, filefd, offset);
      if (filemap == MAP_FAILED) { perror("mmap"); exit (1); }
     
      /* Load in a page of zeros, starting at the next page */
      filemap2 = mmap (start, PAGESIZE, PROT_READ|PROT_WRITE|PROT_EXEC, 
			MAP_PRIVATE|MAP_FIXED, filefd, offset);
      if ( filemap2 == MAP_FAILED ) { perror("mmap2"); exit(1); }
      
      /* Protect everything but the first page */
      start = (void *)(((unsigned int)(filemap) & ~PAGEMASK) + PAGESIZE);
      length = (size_t)((filemap - ((unsigned int)filemap & ~PAGEMASK)) + length - PAGESIZE);
      if (mprotect(start, length, PROT_NONE) != 0) 
        { perror("mprotext"); exit(1); }

      /* Close the file descriptor */
      if (close(filefd) != 0) { perror("close"); exit(1); }

      /* munmap the areas */
      if (munmap(filemap, length) != 0 ) { perror("munmap"); exit(1); }
      if (munmap(filemap2, PAGESIZE) != 0 ) { perror("munmap2"); exit(1); }
      
    }

  return 0;
}
---

The reward goes to the person who make this run the fasteest, as judged
by me :)

c.



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Subject: RE: [parisc-linux] [Status] hppa's userspace in 2004 (looking back)
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Hi Carlos,


>========
>GNU/libc
>========
>
>I'm here to speak on behalf of the userspace work we have done. Glibc is
>in *much* better shape than before, a year ago there were so many errors
>I didn't know where to begin. Our current list of failures is down to:
>
>make[2]: *** [/glibc-work/build-hppa/math/test-float.out] Error 136
>make[2]: *** [/glibc-work/build-hppa/math/test-double.out] Error 1
>make[2]: *** [/glibc-work/build-hppa/math/test-ifloat.out] Error 136
>make[1]: *** [math/tests] Error 2
>
>These three tests are related to the fact that we don't have long double
>supported properly. Waiting on HP to release the code.

Looking for something similar, some time ago, I figure out that Paul released
some interesting hp lib stuff in gcc snapshot (the futur 3.4) into gcc/config/pa
 as milli64.S (optimized div, mul, ....), ... (my last cvs update was dated
of dec 2003 and it seems that this feature was dated of Aug 2003 so I trust
that last debian package gcc-snapshot should also contain this material)

I just don't yet reach to rebuild it (gcc-snapshot) following toolchain process
(but I don't much retry because of gnu pserver cvs pb; in the mean time I
read that new anonymous access would be with ssh, even though last weekend
it was not yet operational?) because I much work on 3.3.3.

hth,
    Joel

-------------------------------------------------------------------------
Tiscali ADSL: 12 mois  29,50 /mois! L'Internet rapide, c'est pour tout
le monde.
http://reg.tiscali.be/default.asp?lg=fr




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From: Riccardo <rollei@tiscalinet.it>
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Help! The machine just doesn't come up anymore! After the screengrap I
posted the kernel dies with a panic...

This time I hooked up a monitor during the whole startup and I notice
some details:
- both eth0 and scsi0 drivers complain about not being able to allcoate
"consistent memory" is this ok? doesn't sound nice.
- there is always a printout saying "kernel bug found in slab.c" with
also a line number which at the moment I can't read (hooked up
themonitor to another computer to be able to write this mail).

Grant Grundler wrote:
 
> The drives shipped with workstations had "Write Cache Enable" (aka WCE)
> turned on by default.  Not good if you really care about your data.
> But Tag queue depth of 2 works great because the drive will immediately
> report "success" until it's on-board cache was full.
I'm currently not using HP drives but two disk drives that worked fine
in a sun workstation and a macintosh, IIRC. Both worked fine with
NetBSD, OpenBSD and some other os's.

I really did a sort of razzia dismantling half of my server and
workstations when I first tried installing linux to get some working
drives. I remember trying out several IBM DFHSS and similar drives of
the 1, 2 GB size. 
The original HP 525MB scsi drives (rebranded Quantum ProDriveLPS 525S)
gave problems too. I have one of those unused and this is the one I used
to test the kernel again.

Currently the machine has a Seagate ST566 (palo and user home as well as
scratch) and a IBM DORS 2GB disk with root. They both are reported as
scsi-2...

 
> >  as the 715
> > is a workstation it might be worth trying setting tags to 2 and seeing
> > what happens?
> 
> Unless performance is more important than strict correctness, I still
> reccommend tag queue depth of 8 and disable "Write Cache" setting.
> Reducing queue depth further typically only limits performance.
> 
> I suspect something else is wrong in Riccardo's case. But it wouldn't
> hurt disable queue tags completely and see if that is at least stable.
Indeed, since I'm not using HP drives. I looked at the jumpers of the HP
relabeled disk and I found none regarding caching.
But does tag queueing affect the controller the disks or both? Either
all my disks are bugged or...

A later post in this thread mentions that setting tag to 0 is not a good
idea and that 2 or 4 would be a resonable value.


I already have quite poor scsi performance. running hdparm -tT yields me
about 8-10 MB buffer but only about 1.5MB/sec non-buffer read! I'd
expect more something around the 4-5Mb/sec range...

-Ric

PS. I hope someone has a suggestion for revitalizing my scorpio. Hooking
up an external CD to get the gentoo live-cd and then reinstalling is a
nuisance
PPS: right now root partition is raiser, so at least I don't loose data
when the sytem freezes and the genoo portage tree doesn't fill up my
disk with small files. SOmeone suggested Raiser being not stable,
howewer since the freeze happens already at MKFS (ext2/ext3 too) and
also did happen on a previous install some weeks ago with ext2 file
system (on a different, HP branded disk!) I think it is unrelated. The
scsi driver sees the problem (or something else affects the scsi driver,
some cache flushing for example)


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This is a multi-part message in MIME format.

------=_NextPart_000_0007_01C3D6E3.16CE1270
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	charset="iso-8859-1"
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ok, i've read the documentation, but i just want to clarify...=20

do the fx4 video cards work with this or not?

i managed (finally) to get it all installed

cheers, matt

------=_NextPart_000_0007_01C3D6E3.16CE1270
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	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.3810.1700" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>ok, i've read the documentation, but i =
just want to=20
clarify... </FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>do the fx4 video cards work with this =
or=20
not?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>i managed (finally) to get it all=20
installed</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>cheers, matt</FONT></DIV></BODY></HTML>

------=_NextPart_000_0007_01C3D6E3.16CE1270--



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> do the fx4 video cards work with this or not?

No.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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In reference to a message from Matt Lewis, dated Jan 09:
> ah crap..
> 
> ok then, can i use my normal TNT2 then?

(please reply on the list)

In general x86 video cards do not work because they have bios that need
to run x86 code (that's my understanding anyway). this has been
discussed several times on the list.  there's an additional problem
which is that some pa firmware refuses to boot with non-HP gfx cards.

Your best bet is to get a PCI Vis-EG card which do work quite well.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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oops sorry about that randolph, using outlook atm :)

thanks, i'll have a look on ebay...=20
----- Original Message -----=20
  From: Randolph Chung=20
  To: Matt Lewis=20
  Cc: parisc-linux@lists.parisc-linux.org=20
  Sent: Friday, January 09, 2004 7:49 PM
  Subject: Re: [parisc-linux] Xfree on C3000 visualize


  In reference to a message from Matt Lewis, dated Jan 09:
  > ah crap..
  >=20
  > ok then, can i use my normal TNT2 then?

  (please reply on the list)

  In general x86 video cards do not work because they have bios that =
need
  to run x86 code (that's my understanding anyway). this has been
  discussed several times on the list.  there's an additional problem
  which is that some pa firmware refuses to boot with non-HP gfx cards.

  Your best bet is to get a PCI Vis-EG card which do work quite well.

  randolph
  --=20
  Randolph Chung
  Debian GNU/Linux Developer, hppa/ia64 ports
  http://www.tausq.org/


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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>oops sorry about that randolph, using =
outlook atm=20
:)</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>thanks, i'll have a look on ebay... =
</FONT></DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:randolph@tausq.org" =
title=3Drandolph@tausq.org>Randolph=20
  Chung</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  href=3D"mailto:nitephyre@iinet.net.au" =
title=3Dnitephyre@iinet.net.au>Matt=20
  Lewis</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Cc:</B> <A=20
  href=3D"mailto:parisc-linux@lists.parisc-linux.org"=20
  =
title=3Dparisc-linux@lists.parisc-linux.org>parisc-linux@lists.parisc-lin=
ux.org</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Friday, January 09, 2004 =
7:49=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [parisc-linux] =
Xfree on=20
  C3000 visualize</DIV>
  <DIV><BR></DIV>In reference to a message from Matt Lewis, dated Jan=20
  09:<BR>&gt; ah crap..<BR>&gt; <BR>&gt; ok then, can i use my normal =
TNT2=20
  then?<BR><BR>(please reply on the list)<BR><BR>In general x86 video =
cards do=20
  not work because they have bios that need<BR>to run x86 code (that's =
my=20
  understanding anyway). this has been<BR>discussed several times on the =

  list.&nbsp; there's an additional problem<BR>which is that some pa =
firmware=20
  refuses to boot with non-HP gfx cards.<BR><BR>Your best bet is to get =
a PCI=20
  Vis-EG card which do work quite well.<BR><BR>randolph<BR>-- =
<BR>Randolph=20
  Chung<BR>Debian GNU/Linux Developer, hppa/ia64 ports<BR><A=20
  =
href=3D"http://www.tausq.org/">http://www.tausq.org/</A><BR></BLOCKQUOTE>=
</BODY></HTML>

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From: "Matt Lewis" <nitephyre@iinet.net.au>
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Subject: Re: [parisc-linux] Xfree on C3000 visualize
Date: Fri, 9 Jan 2004 19:29:45 +1000
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http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=3D3070354300&catego=
ry=3D11221

is that one that would work?
  ----- Original Message -----=20
  From: Randolph Chung=20
  To: Matt Lewis=20
  Cc: parisc-linux@lists.parisc-linux.org=20
  Sent: Friday, January 09, 2004 7:49 PM
  Subject: Re: [parisc-linux] Xfree on C3000 visualize


  In reference to a message from Matt Lewis, dated Jan 09:
  > ah crap..
  >=20
  > ok then, can i use my normal TNT2 then?

  (please reply on the list)

  In general x86 video cards do not work because they have bios that =
need
  to run x86 code (that's my understanding anyway). this has been
  discussed several times on the list.  there's an additional problem
  which is that some pa firmware refuses to boot with non-HP gfx cards.

  Your best bet is to get a PCI Vis-EG card which do work quite well.

  randolph
  --=20
  Randolph Chung
  Debian GNU/Linux Developer, hppa/ia64 ports
  http://www.tausq.org/


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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.3810.1700" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2><A=20
href=3D"http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&amp;item=3D30703=
54300&amp;category=3D11221">http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewI=
tem&amp;item=3D3070354300&amp;category=3D11221</A></FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>is that one that would =
work?</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:randolph@tausq.org" =
title=3Drandolph@tausq.org>Randolph=20
  Chung</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  href=3D"mailto:nitephyre@iinet.net.au" =
title=3Dnitephyre@iinet.net.au>Matt=20
  Lewis</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Cc:</B> <A=20
  href=3D"mailto:parisc-linux@lists.parisc-linux.org"=20
  =
title=3Dparisc-linux@lists.parisc-linux.org>parisc-linux@lists.parisc-lin=
ux.org</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Friday, January 09, 2004 =
7:49=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [parisc-linux] =
Xfree on=20
  C3000 visualize</DIV>
  <DIV><BR></DIV>In reference to a message from Matt Lewis, dated Jan=20
  09:<BR>&gt; ah crap..<BR>&gt; <BR>&gt; ok then, can i use my normal =
TNT2=20
  then?<BR><BR>(please reply on the list)<BR><BR>In general x86 video =
cards do=20
  not work because they have bios that need<BR>to run x86 code (that's =
my=20
  understanding anyway). this has been<BR>discussed several times on the =

  list.&nbsp; there's an additional problem<BR>which is that some pa =
firmware=20
  refuses to boot with non-HP gfx cards.<BR><BR>Your best bet is to get =
a PCI=20
  Vis-EG card which do work quite well.<BR><BR>randolph<BR>-- =
<BR>Randolph=20
  Chung<BR>Debian GNU/Linux Developer, hppa/ia64 ports<BR><A=20
  =
href=3D"http://www.tausq.org/">http://www.tausq.org/</A><BR></BLOCKQUOTE>=
</BODY></HTML>

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From: "Quinn, Timothy" <Timothy.Quinn@McKesson.com>
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Subject: RE: [parisc-linux] C200 available to good home (Pittsburgh area
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What does the thing weigh?  I am in Atlanta, but might be able to pay for
shipping.  God knows I can use something better than my h50...

-----Original Message-----
From: David Huggins-Daines [mailto:dhd@pobox.com] 
Sent: Wednesday, January 07, 2004 9:46 AM
To: parisc-linux@lists.parisc-linux.org
Subject: [parisc-linux] C200 available to good home (Pittsburgh area)


Hello,

I have a C200 which I had planned to do some porting work on.  
Unfortunately it just doesn't seem like I will ever have time to work 
on PA-Linux stuff in the future, and so the thing is just taking up (a 
lot) of space.  Is there anyone out there who could put this to better 
use?  I don't want to sell it, just pass it on to someone who I know is 
going to use it for development purposes.

I'd prefer someone local (I'm in Pittsburgh, Pennsylvania, USA) because 
it's quite big and heavy (yes, I know, it's a "workstation", but 
still).

It is quite loaded down with RAM and multiple video cards and would be 
good for someone doing X11 or framebuffer work.

Please Cc: me on any replies to the list ... thanks.

_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Xfree on C3000 visualize
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On Gwe, 2004-01-09 at 09:49, Randolph Chung wrote:
> In general x86 video cards do not work because they have bios that need
> to run x86 code (that's my understanding anyway). this has been
> discussed several times on the list.  there's an additional problem
> which is that some pa firmware refuses to boot with non-HP gfx cards.

X has an emulator for this, and we do actually know how to init a tnt2
card (see the rivafb code for some of it). Your Tnt2 might actually
work, you never know 8)



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On Jan 9, 2004, at 5:37 AM, Quinn, Timothy wrote:

> What does the thing weigh?  I am in Atlanta, but might be able to pay 
> for
> shipping.  God knows I can use something better than my h50...

Funny, I never actually weighed it myself until now.  It weighs exactly 
50 pounds.  Shipping is actually not as much as I thought - it should 
only be $25 or $30 for UPS Ground.



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [Kernel Hacker Challenge #1] loop.c source update.
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On Thu, Jan 08, 2004 at 12:42:12AM -0500, Carlos O'Donell wrote:
> 
> pa,
> 

Mistake in the code, changed up thanks to Stan who noticed I missed
setting the "start" value for the second mmap call. I was also smoking
crack when I wrote PAGEMASK down, that's what I get for issuing
challenges in the early morning.

http://www.baldric.uwo.ca/~carlos/loop.c (For those with wget fetishes).

The *NO* in the syscall comment means that I did not include that
syscall in the loop. I deemed it not important. If you think otherwise
please test and return the results.

---
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>

#define BUFLEN 512
#define PAGESIZE 4096
/* 4096 - 1, usefull for ~PAGEMASK */
#define PAGEMASK 0x0fff

/*
 
 Sample trace of what glibc does...
   
    968 open("./tst-tlsmod13.so", O_RDONLY)     = 3
    969 read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\10"..., 512) = 512
    970 fstat64(3, {st_mode=0, st_size=4294967297000, ...}) = 0
*NO*971 getcwd("/home/carlos/src/glibc-work/tests/tst-tls13", 128) = 44
    972 mmap(NULL, 69232, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x401b2000
    973 mprotect(0x401b3000, 65136, PROT_NONE)  = 0
    974 mmap(0x401c2000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x401c2000
    975 close(3)                                = 0
*NO*976 munmap(0x401a1000, 69352)               = 0
    977 munmap(0x401b2000, 69232)               = 0

Compile this code with:

	gcc -o loop loop.c

Create the test file with:

	dd if=/dev/zero of=./testdata bs=1024 count=70

*/

int
main (void)
{
  int i;
  char buffer[BUFLEN];
  void * start = NULL;
  int offset = 0;
  void * end = NULL;
  size_t length = 0;
  int filefd;
  void * filemap;
  void * filemap2;
  struct stat statbuf;
  
  for (i = 0; i < 1000;)
    {
      printf ("round %d\n",++i);

      /* File is 70 * 1024 bytes */
      filefd = open("./testdata", O_RDONLY);
      if (filefd == -1) { perror("open"); exit(1); }
      
      /* Read 512 bytes into a buffer... or less */
      length = read(filefd, buffer, BUFLEN);
      if (length == 0) { perror("read"); exit(1); }
       
      /* Find the real size */
      if (fstat(filefd, &statbuf) != 0) { perror("fstat"); exit(1); }
      length = statbuf.st_size;
      
      /* mmap without protection */
      filemap = mmap (start, length, PROT_READ|PROT_EXEC, MAP_PRIVATE, filefd, offset);
      if (filemap == MAP_FAILED) { perror("mmap"); exit (1); }
     
      /* Load in a page of zeros, starting at the next page */
      start = (void *)((unsigned int)(filemap + length + PAGESIZE) & ~PAGEMASK);
      filemap2 = mmap (start, PAGESIZE, PROT_READ|PROT_WRITE|PROT_EXEC, 
		      MAP_PRIVATE|MAP_FIXED, filefd, offset);
      if ( filemap2 == MAP_FAILED ) { perror("mmap2"); exit(1); }
      
      /* Protect everything but the first page */
      start = (void *)(((unsigned int)(filemap) & ~PAGEMASK) + PAGESIZE);
      length = (size_t)((filemap - ((unsigned int)filemap & ~PAGEMASK)) + length - PAGESIZE);
      if (mprotect(start, length, PROT_NONE) != 0) 
        { perror("mprotext"); exit(1); }

      /* Close the file descriptor */
      if (close(filefd) != 0) { perror("close"); exit(1); }

      /* munmap the areas */
      if (munmap(filemap, length) != 0 ) { perror("munmap"); exit(1); }
      if (munmap(filemap2, PAGESIZE) != 0 ) { perror("munmap2"); exit(1); }
      
    }

  return 0;
}
---


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Re: KDE and sarge (dcopserver?)
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On Fri, Jan 09, 2004 at 05:12:47PM +0100, Ralf Hildebrandt wrote:
> > DCOPClient::attachInternal. Attach failed Authentication Rejected, reason : 
> > None of the authentication protocols specified are supported and host-based 
> > authentication failed
> > DCOPServer self-test failed.
> 
> Same problem here. In sid...

Is there some form of verbose output for the DCOP server?

c.



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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] 2.6.1-rc3-pa0 (32bit),
	2.4.24-pa0 and 2.4.25-pre4-pa0 (64bit) Ok
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Just to mentionned that test:
2.6.1-rc3-pa0 (32bit) compile and boot fine on my b2k and a b180L
2.4.24-pa0 and 2.4.25-pre4-pa0 (64bit) compile and boot fine on the b2k

Thanks again to all for your great job,
	Joel



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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] Re: [PATCH] 2.4.24-pre3 obmouse driver for HP OB600
	C/CT laptop
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On Friday 09 January 2004 06:55, Grant Grundler wrote:
> On Mon, Jan 05, 2004 at 03:26:26PM +0100, Helge Deller wrote:
> > With the input-driver you can directly give the absolute coordinates
> > (no need to do conversion yourself),
> 
> I looked at Documentation/input/* and REL_ABS can not deal
> with "roll-over". It's expects fixed values to define the range
> of motion. That's not true for obmouse.
> AFAICT, only real tablets and joysticks fit that model well.

yes, maybe. I don't know obmice's details.

> I have the feeling /dev/input is a bit more "heavy weight" based
> on the number of function calls in ob_interrupt. But I'm not sure
> it matters. This is just for fun and it works too.

Hmm, the calls are pretty fast iirc..
See also my other mail.

Helge


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Subject: Re: [parisc-linux] Re: [PATCH] 2.4.24-pre3 obmouse driver for HP
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Sorry, this mail was meant to go to Grant directly....

Helge

On Friday 09 January 2004 20:04, Helge Deller wrote:
> On Friday 09 January 2004 06:55, Grant Grundler wrote:
> > On Mon, Jan 05, 2004 at 03:26:26PM +0100, Helge Deller wrote:
> > > With the input-driver you can directly give the absolute coordinates
> > > (no need to do conversion yourself),
> > 
> > I looked at Documentation/input/* and REL_ABS can not deal
> > with "roll-over". It's expects fixed values to define the range
> > of motion. That's not true for obmouse.
> > AFAICT, only real tablets and joysticks fit that model well.
> 
> yes, maybe. I don't know obmice's details.
> 
> > I have the feeling /dev/input is a bit more "heavy weight" based
> > on the number of function calls in ob_interrupt. But I'm not sure
> > it matters. This is just for fun and it works too.
> 
> Hmm, the calls are pretty fast iirc..
> See also my other mail.
> 
> Helge



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Subject: Re: [parisc-linux] Xfree on C3000 visualize
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On Fri, Jan 09, 2004 at 07:29:45PM +1000, Matt Lewis wrote:
> http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=3070354300&category=11221
> 
> is that one that would work?

no.
You c3k only has PCI slots in it.
Search the parisc-linux mail archive (lists.parisc-linux.org)
for references to Vis-EG and a part number will surely pop up.

grant


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Joel Soete wrote:
[snip]
> (but I don't much retry because of gnu pserver cvs pb; in the mean time I
> read that new anonymous access would be with ssh, even though last weekend
> it was not yet operational?) 
[snip]

CVSROOT=":ext:anoncvs@subversions.gnu.org:/cvsroot/gcc"

seems to be operational now with CVS_RSH="ssh"

hth,
	Joel



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Subject: Re: [parisc-linux] Re: Installing Debian on an 712/80
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Good news (for me, that is).  A colleague here at work located an older ext=
ernal Sun CDROM, which I believe supports 512k byte segments.  I'll try a=
n install with it this weekend and send an update when I'm successful. (N=
ote the optimism)

Have a good weekend, everyone.

BB

-----Original Message-----
From: Steve Bromwich <hppa@fop.ns.ca>
To: Matthew Wilcox <willy@debian.org>
Date: Thu, 1 Jan 2004 18:13:13 -0400 (AST)
Subject: Re: [parisc-linux] Re: Installing Debian on an 712/80

On Thu, 1 Jan 2004, Matthew Wilcox wrote:

> On Tue, Dec 23, 2003 at 10:20:01AM -0500, Brian Barber wrote:
>
> > I've done some more digging and come up with the following obstacles:
> > 1) HP machines require active SCSI termination, hence the reason why I =
could not boot from my (borrowed) external SCSI CD-ROM (passive terminato=
r only)
>
> I'm not sure that's true, but they do require certain CD drives to
> boot from.  I forget the details; something to do with 2k vs 512 byte
> sector sizes.

The industry standard (ie, IBM PC world) is 2048 byte sectors, whereas HP
(and Sun) use 512 byte sectors. If you don't have a drive that supports
512 byte sectors, you won't get anywhere. See the post I made (and
subsequent informative posts from others) at
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-November/021645.h=
tml
for more details.

> > If I am correct (jump in here), I am left with bootp/tftp as the only
> > means of booting the machine.  If I take this route, I copy lifimage
> > to the boot directory of my tftp server.  This is where I am stuck.
> > There is no documentation I can find (or discern) that walks one throug=
h
> > an install from a tftp-booted machine.  Is there a way for me to mount
> > the Debain CD via nfs and launch the installer from there?

When you boot via tftp you still need a way to communicate with the box,
either using a keyboard and monitor, or (more commonly) via serial
console. Is this the answer to the question you're asking?

Alternatively, when you boot the lifimage I *think* you get the option of
installing from pre-mounted directory (somewhat useless via serial console
- I don't think there's any way to get a shell prompt to premount a
directory), NFS, HTTP or FTP - ie, the usual Debian install methodology. I
suspect your best bet is over NFS.

> I'd like to just point you at the boot HOWTO [1], but it doesn't seem
> to cover this step.  It only covers booting the kernel, not setting up
> your NFS root.  I've had mixed success with using debootstrap to populate
> a minimal nfsroot, then updating to sid and installing new packages.

One thing I noticed is that the config given is using inetd (I use xinetd)
and appears to be using the "standard" tftp, rather than hpa's tftpd. I
recently set up a diskless J200 (imaginatively named "j200"), the config I
used on the server is as follows:

dhcpd.conf:

allow bootp;
option domain-name "fop.ns.ca";
option domain-name-servers 10.2.1.10;
option log-servers 10.2.1.10;
authoritative;
use-host-decl-names on;

host j200 {
  hardware ethernet 08:00:09:8c:d1:41;
  filename "lifimage";
  server-name "10.2.1.10";
  fixed-address 10.2.1.21;
  option subnet-mask 255.255.255.0;
  option broadcast-address 10.2.1.255;
  option routers 10.2.1.200;
  option domain-name "fop.ns.ca";
  option root-path "10.2.1.21:/j200";
}


xinetd.conf:

service tftp
{
       socket_type     =3D dgram
       protocol        =3D udp
       wait            =3D yes
       user            =3D root
       #server         =3D /usr/sbin/tcpd
       #server_args    =3D /usr/sbin/in.tftpd /tftpboot
       server          =3D /usr/sbin/in.tftpd
       server_args     =3D -v -s /tftpboot
       disable         =3D no
}


One tip I noticed is it takes a dog's age to boot with serial console set
to 9600. If you're going to do a serial console, I'd recommend upping the
rate to 19200.

I'm off to Boston tomorrow for a week and a half, but if you're still
having troubles when I get back I can fire up the J200 and write up a
step-by-step if it'd help.

Cheers, Steve





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On Mon, Jan 05, 2004 at 02:48:39PM -0500, Carlos O'Donell wrote:
> http://www.parisc-linux.org/~carlos/glibc-2.3.2-debs-2004-01-05/

I finally installed these (libc6 and libc6-dev) and live is still good.
thanks carlos!

hth,
grant


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References: <20040109151436.51FB54E8F8@mailhost.cetic.be>
In-Reply-To: <20040109151436.51FB54E8F8@mailhost.cetic.be>

Damien,
My apologies.
I was hunting through parisc-linux mail archives for something else and
noticed Helge Deller did NOT post his patch to parisc-linux mailing list:

	Subject: [PATCH] fix KJS crash on some more strict platforms
	Date: Tuesday 16 December 2003 22:08
	To: kde-core-devel@kde.org

I've dropped Helge's patch and rebuilt kdelibs packages here:
	http://www.parisc-linux.org/~grundler/kdelibs-3.1.4/

The official fix is slightly different but this works.
I've installed kdelibs4, kdelibs-bin, and kdelibs-data from the above
and konqueror is again working on my c3k (32-bit 2.6.0-pa7, sarge).
Might only need to install kdelibs4 and the not others.

This patch also suggested the kernel LDD misaligned trap handler wasn't
working correctly. Lamont Jones fixed with this checkin (2.4.23-pa5 IIRC):
	http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2003-December/033645.html

hth,
grant


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Subject: [parisc-linux] running gcc testsuite triggers ongoing page faults
Date: Sun, 11 Jan 2004 10:16:27 +0100
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I think I did see this first with gcc-3.3 from 20031229. Running the
3.3 testsuite (gcc) doesn't terminate. Instead, I see expect eating
all CPU time, together with syslogd and klogd. /var get's filled with
log messages in kern.log, syslog and debug.

The machine is a A500, kernel from the archives (kernel-image-2.4.21-64-smp_pa7.3)


Jan 11 06:42:49 pampa kernel: do_page_fault() pid=13367 command='expect' type=15 address=0x4abfccfe
Jan 11 06:42:49 pampa kernel: vm_start = 0x40353000, vm_end = 0x40355000
Jan 11 06:42:49 pampa kernel: 
Jan 11 06:42:49 pampa kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Jan 11 06:42:49 pampa kernel: PSW: 00000000000001001111111100001111 Not tainted
Jan 11 06:42:49 pampa kernel: r00-03  0000000000000000 0000000040336510 000000004033655c fffffffffffffffa
Jan 11 06:42:49 pampa kernel: r04-07  0000000040336570 0000000000001008 0000000000001002 0000000000000063
Jan 11 06:42:49 pampa kernel: r08-11  0000000000021148 0000000000207a8c 0000000000000006 0000000000005438
Jan 11 06:42:49 pampa kernel: r12-15  0000000040050a6c 0000000040050a78 0000000000021618 0000000000000001
Jan 11 06:42:49 pampa kernel: r16-19  0000000000000000 0000000000000001 0000000000000000 00000000403349c8
Jan 11 06:42:49 pampa kernel: r20-23  0000000000207bb8 00000ab50a94d694 00000000402af66a 00000000002067a8
Jan 11 06:42:49 pampa kernel: r24-27  00000000400a8ec2 000lt() pid=13367 command='expect' type=15 address=0x4abfccfe
Jan 11 06:42:49 pampa kernel: vm_start = 0x40353000, vm_end = 0x40355000
Jan 11 06:42:49 pampa kernel: 
Jan 11 06:42:49 pampa kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Jan 11 06:42:49 pampa kernel: PSW: 00000000000001001111111100001111 Not tainted
Jan 11 06:42:49 pampa kernel: r00-03  0000000000000000 0000000040336510 000000004033655c fffffffffffffffa
Jan 11 06:42:49 pampa kernel: r04-07  0000000040336570 0000000000001008 0000000000001002 0000000000000063
Jan 11 06:42:49 pampa kernel: r08-11  0000000000021148 0000000000207a8c 0000000000000006 0000000000005438
Jan 11 06:42:49 pampa kernel: r12-15  0000000040050a6c 0000000040050a78 0000000000021618 0000000000000001
Jan 11 06:42:49 pampa kernel: r16-19  0000000000000000 0000000000000001 0000000000000000 00000000403349c8
Jan 11 06:42:49 pampa kernel: r20-23  0000000000207bb8 00000ab50a94d694 00000000402af66a 00000000002067a8
Jan 11 06:42:49 pampa kernel: r24-27  00000000400a8ec2 00000ab50a94d690 00000ab50a94d694 0000000000020dd4
Jan 11 06:42:49 pampa kernel: r28-31  00000ab54abfccfa 0000000040336584 00000000faf06a80 0000000000000004
Jan 11 06:42:49 pampa kernel: sr0-3   0000000000d28480 0000000000d28480 0000000000000000 0000000000d28480
Jan 11 06:42:49 pampa kernel: sr4-7   0000000000d28480 0000000000d28480 0000000000d28480 0000000000d28480
Jan 11 06:42:49 pampa kernel: 
Jan 11 06:42:49 pampa kernel: IASQ: 0000000000d28480 0000000000d28480 IAOQ: 0000000040259043 0000000040259047
Jan 11 06:42:49 pampa kernel:  IIR: 0f881094    ISR: 0000000000d28480  IOR: 000000004abfccfe
Jan 11 06:42:49 pampa kernel:  CPU:        1   CR30: 0000000018f5c000 CR31: 0000000000008020
Jan 11 06:42:49 pampa kernel:  ORIG_R28: 00000ab54abfccfa
Jan 11 06:42:49 pampa kernel: 
Jan 11 06:42:49 pampa kernel: do_page_fault() pid=13367 command='expect' type=15 address=0x4abfccfe
Jan 11 06:42:49 pampa kernel: vm_start = 0x40353000, vm_end = 0x40355000
Jan 11 06:42:49 pampa kernel: 
Jan 11 06:42:49 pampa kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Jan 11 06:42:49 pampa kernel: PSW: 00000000000001001111111100001111 Not tainted
Jan 11 06:42:49 pampa kernel: r00-03  0000000000000000 0000000040336510 000000004033655c fffffffffffffffa
Jan 11 06:42:49 pampa kernel: r04-07  0000000040336570 0000000000001008 0000000000001002 0000000000000063
Jan 11 06:42:49 pampa kernel: r08-11  0000000000021148 0000000000207a8c 0000000000000006 0000000000005438
Jan 11 06:42:49 pampa kernel: r12-15  0000000040050a6c 0000000040050a78 0000000000021618 0000000000000001
Jan 11 06:42:49 pampa kernel: r16-19  0000000000000000 0000000000000001 0000000000000000 00000000403349c8
Jan 11 06:42:49 pampa kernel: r20-23  0000000000207bb8 00000ab50a94d694 00000000402af66a 00000000002067a8
Jan 11 06:42:49 pampa kernel: r24-27  00000000400a8ec2 00000ab50a94d690 00000ab50a94d694 0000000000020dd4
Jan 11 06:42:49 pampa kernel: r28-31  00000ab54abfccfa 0000000040336584 00000000faf06a80 0000000000000004
Jan 11 06:42:49 pampa kernel: sr0-3   0000000000d28480 0000000000d28480 0000000000000000 0000000000d28480
Jan 11 06:42:49 pampa kernel: sr4-7   0000000000d28480 0000000000d28480 0000000000d28480 0000000000d28480
Jan 11 06:42:49 pampa kernel: 
Jan 11 06:42:49 pampa kernel: IASQ: 0000000000d28480 0000000000d28480 IAOQ: 0000000040259043 0000000040259047
Jan 11 06:42:49 pampa kernel:  IIR: 0f881094    ISR: 0000000000d28480  IOR: 000000004abfccfe
Jan 11 06:42:49 pampa kernel:  CPU:        1   CR30: 0000000018f5c000 CR31: 0000000000008020
Jan 11 06:42:49 pampa kernel:  ORIG_R28: 00000ab54abfccfa
Jan 11 06:42:49 pampa kernel: 
Jan 11 06:42:49 pampa kernel: do_page_fault() pid=13367 command='expect' type=15 address=0x4abfccfe
Jan 11 06:42:49 pampa kernel: vm_start = 0x40353000, vm_end = 0x40355000
Jan 11 06:42:49 pampa kernel: 
Jan 11 06:42:49 pampa kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Jan 11 06:42:49 pampa kernel: PSW: 00000000000001001111111100001111 Not tainted
Jan 11 06:42:49 pampa kernel: r00-03  0000000000000000 0000000040336510 000000004033655c fffffffffffffffa
Jan 11 06:42:49 pampa kernel: r04-07  0000000040336570 0000000000001008 0000000000001002 0000000000000063
Jan 11 06:42:49 pampa kernel: r08-11  0000000000021148 0000000000207a8c 0000000000000006 0000000000005438
Jan 11 06:42:49 pampa kernel: r12-15  0000000040050a6c 0000000040050a78 0000000000021618 0000000000000001
Jan 11 06:42:49 pampa kernel: r16-19  0000000000000000 0000000000000001 0000000000000000 00000000403349c8
Jan 11 06:42:49 pampa kernel: r20-23  0000000000207bb8 00000ab50a94d694 00000000402af66a 00000000002067a8
Jan 11 06:42:49 pampa kernel: r24-27  00000000400a8ec2 00000ab50a94d690 00000ab50a94d694 0000000000020dd4
Jan 11 06:42:49 pampa kernel: r28-31  00000ab54abfccfa 0000000040336584 00000000faf06a80 0000000000000004
Jan 11 06:42:49 pampa kernel: sr0-3   0000000000d28480 0000000000d28480 0000000000000000 0000000000d28480
Jan 11 06:42:49 pampa kernel: sr4-7   0000000000d28480 0000000000d28480 0000000000d28480 0000000000d28480
Jan 11 06:42:49 pampa kernel: 
Jan 11 06:42:49 pampa kernel: IASQ: 0000000000d28480 0000000000d28480 IAOQ: 0000000040259043 0000000040259047
Jan 11 06:42:49 pampa kernel:  IIR: 0f881094    ISR: 0000000000d28480  IOR: 000000004abfccfe
Jan 11 06:42:49 pampa kernel:  CPU:        1   CR30: 0000000018f5c000 CR31: 0000000000008020
Jan 11 06:42:49 pampa kernel:  ORIG_R28: 00000ab54abfccfa


From - Thu Nov 08 21:30:37 2018
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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] running gcc testsuite triggers ongoing page faults
Date: Sun, 11 Jan 2004 02:08:53 -0800
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To: Matthias Klose <doko@cs.tu-berlin.de>
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In reference to a message from Matthias Klose, dated Jan 11:
> I think I did see this first with gcc-3.3 from 20031229. Running the
> 3.3 testsuite (gcc) doesn't terminate. Instead, I see expect eating
> all CPU time, together with syslogd and klogd. /var get's filled with
> log messages in kern.log, syslog and debug.
> 
> The machine is a A500, kernel from the archives (kernel-image-2.4.21-64-smp_pa7.3)

jda sees this problem too, but we haven't been able to isolate it. if
you can find out which test case causes this we might be able to figure
it out.

also it appears that when running a UP kernel this doesn't happen.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Matthias Klose <doko@cs.tu-berlin.de>
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Subject: Re: [parisc-linux] running gcc testsuite triggers ongoing page faults
Date: Sun, 11 Jan 2004 12:39:35 +0100
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Randolph Chung writes:
> In reference to a message from Matthias Klose, dated Jan 11:
> > I think I did see this first with gcc-3.3 from 20031229. Running the
> > 3.3 testsuite (gcc) doesn't terminate. Instead, I see expect eating
> > all CPU time, together with syslogd and klogd. /var get's filled with
> > log messages in kern.log, syslog and debug.
> > 
> > The machine is a A500, kernel from the archives (kernel-image-2.4.21-64-smp_pa7.3)
> 
> jda sees this problem too, but we haven't been able to isolate it. if
> you can find out which test case causes this we might be able to figure
> it out.

well, the last testcase logged in build/gcc/testsuite/gcc.log is 

	gcc.c-torture/execute/931004-12.c compilation,  -O1

the next one would be

	gcc.c-torture/execute/931004-12.c compilation,  -O2

> also it appears that when running a UP kernel this doesn't happen.
> 
> randolph
> -- 
> Randolph Chung
> Debian GNU/Linux Developer, hppa/ia64 ports
> http://www.tausq.org/


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Subject: [parisc-linux] cvs confuse me: please help!
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Hi all,

As usual I do a 'cvs -z3 update linux-2.6'.

Head of linux-2.6/Makefile:
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 1
EXTRAVERSION =-rc2-pa0

# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
# More info can be located in ./README
# Comments in this file are targeted only to the developer, do not
# expect to learn how to build the kernel reading this file.

To build my own merge with 2.6.1 I grab linux-2.6.1-rc22.tar.bz2 from ftp.kernel.org and do a diff between src to obtain a patch 
file. Just scaning this patch file I read this:
[snip]
diff -NaurX dontdiff linux-2.6.1-rc2/drivers/scsi/sym53c8xx_2/sym_misc.c linux-2.6.1-rc2-pa0/drivers/scsi/sym53c8xx_2/sym_misc.c
--- linux-2.6.1-rc2/drivers/scsi/sym53c8xx_2/sym_misc.c 2004-01-06 06:10:10.000000000 +0100
+++ linux-2.6.1-rc2-pa0/drivers/scsi/sym53c8xx_2/sym_misc.c     2003-12-14 21:57:09.000000000 +0100
@@ -315,7 +315,7 @@
          */
         inq_byte56 = tp->inq_byte56;
         if (inq_version >= 4 && inq_len > 56)
-               tp->inq_byte56 = inq_data[56];
+               inq_byte56 = inq_data[56];
  #if 0
  printf("XXXXXX [%d] inq_version=%x inq_byte7=%x inq_byte56=%x XXXXX\n",
         inq_len, inq_version, inq_byte7, inq_byte56);
[snip]

To be sure it's relevant, I check with viewcvs and read the Matthew's patch:
===================================================================
RCS file: /var/lib/cvs/linux-2.6/drivers/scsi/sym53c8xx_2/sym_misc.c,v
retrieving revision 1.3
retrieving revision 1.3.4.1
diff -u -r1.3 -r1.3.4.1
--- linux-2.6/drivers/scsi/sym53c8xx_2/sym_misc.c	2003/12/14 15:26:41	1.3
+++ linux-2.6/drivers/scsi/sym53c8xx_2/sym_misc.c	2004/01/07 21:09:15	1.3.4.1
@@ -315,7 +315,7 @@
  	 */
  	inq_byte56 = tp->inq_byte56;
  	if (inq_version >= 4 && inq_len > 56)
-		inq_byte56 = inq_data[56];
+		tp->inq_byte56 = inq_data[56];
  #if 0
  printf("XXXXXX [%d] inq_version=%x inq_byte7=%x inq_byte56=%x XXXXX\n",
  	inq_len, inq_version, inq_byte7, inq_byte56);
=========><=========

I so remove my tree linux-2.6 and redo cvs co linux-2.6 but when I check 'sym_misc.c', I always got:
[snip]
     313         /*
     314          *  Get CLOCKING capability.
     315          */
     316         inq_byte56 = tp->inq_byte56;
     317         if (inq_version >= 4 && inq_len > 56)
     318                 inq_byte56 = inq_data[56];
     319 #if 0
     320 printf("XXXXXX [%d] inq_version=%x inq_byte7=%x inq_byte56=%x XXXXX\n",
     321         inq_len, inq_version, inq_byte7, inq_byte56);
     322 #endif
[snip]

What do I wrong?

Thanks in advance for help and advise,
	Joel



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> well, the last testcase logged in build/gcc/testsuite/gcc.log is 
> 
> 	gcc.c-torture/execute/931004-12.c compilation,  -O1
> 
> the next one would be
> 
> 	gcc.c-torture/execute/931004-12.c compilation,  -O2

does it always die at the same test case?

randolph


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James,

Thanks for your merge,
	Joel

Joel Soete wrote:
> Hi all,
> 
> As usual I do a 'cvs -z3 update linux-2.6'.
> 
> Head of linux-2.6/Makefile:
> VERSION = 2
> PATCHLEVEL = 6
> SUBLEVEL = 1
> EXTRAVERSION =-rc2-pa0
> 
> # *DOCUMENTATION*
> # To see a list of typical targets execute "make help"
> # More info can be located in ./README
> # Comments in this file are targeted only to the developer, do not
> # expect to learn how to build the kernel reading this file.
> 
> To build my own merge with 2.6.1 I grab linux-2.6.1-rc22.tar.bz2 from 
> ftp.kernel.org and do a diff between src to obtain a patch file. Just 
> scaning this patch file I read this:
> [snip]
> diff -NaurX dontdiff linux-2.6.1-rc2/drivers/scsi/sym53c8xx_2/sym_misc.c 
> linux-2.6.1-rc2-pa0/drivers/scsi/sym53c8xx_2/sym_misc.c
> --- linux-2.6.1-rc2/drivers/scsi/sym53c8xx_2/sym_misc.c 2004-01-06 
> 06:10:10.000000000 +0100
> +++ linux-2.6.1-rc2-pa0/drivers/scsi/sym53c8xx_2/sym_misc.c     
> 2003-12-14 21:57:09.000000000 +0100
> @@ -315,7 +315,7 @@
>          */
>         inq_byte56 = tp->inq_byte56;
>         if (inq_version >= 4 && inq_len > 56)
> -               tp->inq_byte56 = inq_data[56];
> +               inq_byte56 = inq_data[56];
>  #if 0
>  printf("XXXXXX [%d] inq_version=%x inq_byte7=%x inq_byte56=%x XXXXX\n",
>         inq_len, inq_version, inq_byte7, inq_byte56);
> [snip]
> 
> To be sure it's relevant, I check with viewcvs and read the Matthew's 
> patch:
> ===================================================================
> RCS file: /var/lib/cvs/linux-2.6/drivers/scsi/sym53c8xx_2/sym_misc.c,v
> retrieving revision 1.3
> retrieving revision 1.3.4.1
> diff -u -r1.3 -r1.3.4.1
> --- linux-2.6/drivers/scsi/sym53c8xx_2/sym_misc.c    2003/12/14 
> 15:26:41    1.3
> +++ linux-2.6/drivers/scsi/sym53c8xx_2/sym_misc.c    2004/01/07 
> 21:09:15    1.3.4.1
> @@ -315,7 +315,7 @@
>       */
>      inq_byte56 = tp->inq_byte56;
>      if (inq_version >= 4 && inq_len > 56)
> -        inq_byte56 = inq_data[56];
> +        tp->inq_byte56 = inq_data[56];
>  #if 0
>  printf("XXXXXX [%d] inq_version=%x inq_byte7=%x inq_byte56=%x XXXXX\n",
>      inq_len, inq_version, inq_byte7, inq_byte56);
> =========><=========
> 
> I so remove my tree linux-2.6 and redo cvs co linux-2.6 but when I check 
> 'sym_misc.c', I always got:
> [snip]
>     313         /*
>     314          *  Get CLOCKING capability.
>     315          */
>     316         inq_byte56 = tp->inq_byte56;
>     317         if (inq_version >= 4 && inq_len > 56)
>     318                 inq_byte56 = inq_data[56];
>     319 #if 0
>     320 printf("XXXXXX [%d] inq_version=%x inq_byte7=%x inq_byte56=%x 
> XXXXX\n",
>     321         inq_len, inq_version, inq_byte7, inq_byte56);
>     322 #endif
> [snip]
> 
> What do I wrong?
> 
> Thanks in advance for help and advise,
>     Joel
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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> I think I did see this first with gcc-3.3 from 20031229. Running the
> 3.3 testsuite (gcc) doesn't terminate. Instead, I see expect eating
> all CPU time, together with syslogd and klogd. /var get's filled with
> log messages in kern.log, syslog and debug.
> 
> The machine is a A500, kernel from the archives (kernel-image-2.4.21-64-smp_pa7.3)

I've had similar problems on gsyprf11, but recent kernels seem to be
better.  I believe that this is more likely on SMP kernels and we have
never had a stable one on gsyprf11.  You can kill expect and GCC will
move on to the next suite.  I haven't seen this on the C3750.

This definitely isn't a GCC problem.  The problem never occurs under
hpux.  It's probably some kind of timing or locking issue that just
happens to get tweaked by a particular test.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Sat, Jan 10, 2004 at 09:09:06PM -0700, Grant Grundler wrote:
> On Mon, Jan 05, 2004 at 02:48:39PM -0500, Carlos O'Donell wrote:
> > http://www.parisc-linux.org/~carlos/glibc-2.3.2-debs-2004-01-05/
> 
> I finally installed these (libc6 and libc6-dev) and live is still good.
> thanks carlos!

Excellent. You haven't tried profiling any programs have you? :)
Compile with CFLAGS=-pg, run-em, then run gprof on the gmon.out output?

c.



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With the older Sun CDROM drive and the full debian-hppa iso, the install wa=
s trivial.  One thing that is really remarkable is the "power on to login=
 prompt" speed.  Everything that I have tried so far works great.  This i=
s a brilliant port.

The only hangup I had was installing XFree86.  I tried installing using x-w=
indow-system, which kept failing with twm as a broken dependency (Depend:=
 twm is needed but will not be installed / Sorry, broken package [sic - g=
oing off the top of my head]).  I installed with x-window-system-core, wh=
ich was successful, and then installed individual packages as required (e=
.g. xterm, xdm, etc.)

Thanks for the guidance on the CDROM drive.  That tip might want to find it=
s way into the install documentation for other PARISC rookies.

Cheers,
BB

PS: Now that I have a working machine, how can I help the development effor=
t?

-----Original Message-----
From: "Brian Barber" <brianbarber@myrealbox.com>
To: parisc-linux@parisc-linux.org
Date: Fri, 09 Jan 2004 16:12:14 -0500
Subject: Re: [parisc-linux] Re: Installing Debian on an 712/80

Good news (for me, that is).  A colleague here at work located an older ext=
ernal Sun CDROM, which I believe supports 512k byte segments.  I'll try a=
n install with it this weekend and send an update when I'm successful. (N=
ote the optimism)

Have a good weekend, everyone.

BB

-----Original Message-----
From: Steve Bromwich <hppa@fop.ns.ca>
To: Matthew Wilcox <willy@debian.org>
Date: Thu, 1 Jan 2004 18:13:13 -0400 (AST)
Subject: Re: [parisc-linux] Re: Installing Debian on an 712/80

On Thu, 1 Jan 2004, Matthew Wilcox wrote:

> On Tue, Dec 23, 2003 at 10:20:01AM -0500, Brian Barber wrote:
>
> > I've done some more digging and come up with the following obstacles:
> > 1) HP machines require active SCSI termination, hence the reason why I =
could not boot from my (borrowed) external SCSI CD-ROM (passive terminato=
r only)
>
> I'm not sure that's true, but they do require certain CD drives to
> boot from.  I forget the details; something to do with 2k vs 512 byte
> sector sizes.

The industry standard (ie, IBM PC world) is 2048 byte sectors, whereas HP
(and Sun) use 512 byte sectors. If you don't have a drive that supports
512 byte sectors, you won't get anywhere. See the post I made (and
subsequent informative posts from others) at
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-November/021645.h=
tml
for more details.

> > If I am correct (jump in here), I am left with bootp/tftp as the only
> > means of booting the machine.  If I take this route, I copy lifimage
> > to the boot directory of my tftp server.  This is where I am stuck.
> > There is no documentation I can find (or discern) that walks one throug=
h
> > an install from a tftp-booted machine.  Is there a way for me to mount
> > the Debain CD via nfs and launch the installer from there?

When you boot via tftp you still need a way to communicate with the box,
either using a keyboard and monitor, or (more commonly) via serial
console. Is this the answer to the question you're asking?

Alternatively, when you boot the lifimage I *think* you get the option of
installing from pre-mounted directory (somewhat useless via serial console
- I don't think there's any way to get a shell prompt to premount a
directory), NFS, HTTP or FTP - ie, the usual Debian install methodology. I
suspect your best bet is over NFS.

> I'd like to just point you at the boot HOWTO [1], but it doesn't seem
> to cover this step.  It only covers booting the kernel, not setting up
> your NFS root.  I've had mixed success with using debootstrap to populate
> a minimal nfsroot, then updating to sid and installing new packages.

One thing I noticed is that the config given is using inetd (I use xinetd)
and appears to be using the "standard" tftp, rather than hpa's tftpd. I
recently set up a diskless J200 (imaginatively named "j200"), the config I
used on the server is as follows:

dhcpd.conf:

allow bootp;
option domain-name "fop.ns.ca";
option domain-name-servers 10.2.1.10;
option log-servers 10.2.1.10;
authoritative;
use-host-decl-names on;

host j200 {
  hardware ethernet 08:00:09:8c:d1:41;
  filename "lifimage";
  server-name "10.2.1.10";
  fixed-address 10.2.1.21;
  option subnet-mask 255.255.255.0;
  option broadcast-address 10.2.1.255;
  option routers 10.2.1.200;
  option domain-name "fop.ns.ca";
  option root-path "10.2.1.21:/j200";
}


xinetd.conf:

service tftp
{
       socket_type     =3D dgram
       protocol        =3D udp
       wait            =3D yes
       user            =3D root
       #server         =3D /usr/sbin/tcpd
       #server_args    =3D /usr/sbin/in.tftpd /tftpboot
       server          =3D /usr/sbin/in.tftpd
       server_args     =3D -v -s /tftpboot
       disable         =3D no
}


One tip I noticed is it takes a dog's age to boot with serial console set
to 9600. If you're going to do a serial console, I'd recommend upping the
rate to 19200.

I'm off to Boston tomorrow for a week and a half, but if you're still
having troubles when I get back I can fire up the J200 and write up a
step-by-step if it'd help.

Cheers, Steve



_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux





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> PS: Now that I have a working machine, how can I help the development effort?

there are lots of projects, what kinds of things are you interested in?
kernel? userspace? toolchain? packeges?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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I'm not a developer, but I do dabble.  I'm probably more dangerous than use=
ful.  I'm an infrastructure architect, a published author and an experien=
ced tester; hence, I figure that I can best help out with documention and=
 testing the projects that are highest priority on your to-do list.

I'm not partial to any particular type of project, my only limitation is th=
e fact that I'm running an older piece of equipment.  If anyone in Canada=
's National Capital Region wants to float something in that would be more=
 appropriate to the project, I'd give it a good home.

BB

-----Original Message-----
From: Randolph Chung <tausq@debian.org>
To: brianbarber@linux.ca
Date: Mon, 12 Jan 2004 07:20:00 -0800
Subject: Re: [parisc-linux] Installing Debian on an 712/80

> PS: Now that I have a working machine, how can I help the development eff=
ort?

there are lots of projects, what kinds of things are you interested in?
kernel? userspace? toolchain? packeges?

randolph
--=20
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/





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Subject: Re: [parisc-linux] [Testers wanted] New glibc with profiling fixed.
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On Sun, Jan 11, 2004 at 03:43:55PM -0500, Carlos O'Donell wrote:
> Excellent. You haven't tried profiling any programs have you? :)

Profiing? what's that? :^P

> Compile with CFLAGS=-pg, run-em, then run gprof on the gmon.out output?

ok...I'll try tonight.

thanks,
grant


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On Mon, Jan 12, 2004 at 09:12:32AM -0500, Brian Barber wrote:
> Thanks for the guidance on the CDROM drive.  That tip might want to
>  find its way into the install documentation for other PARISC rookies.
...
> PS: Now that I have a working machine, how can I help the development effort?

You pointed out a good one above.

Send a diff (or new text) for an existing install document (URL please)
and that would be a good first step to getting the public version updated.

In general, the parisc-linux website had several How-To's and
a FAQ that could use slight reworking (eg look for stale URL's
and just proper english grammar).

thanks,
grant


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Hi Carlos,

Here is finaly the pb I encounter when I try to rebuild the toolchain with
gcc-snapshot at the time of glibc build:
[snip]
/Develop/parisc-linux/xc/bin/hppa-linux-gcc -nostdlib -nostartfiles -o /Develop/parisc-linux/build/glibc/iconv/iconvconfig
 -Wl,-dynamic-linker=/opt/palinux/hppa-linux/lib/ld.so.1    /Develop/parisc-linux/build/glibc/csu/crt1.o
/Develop/parisc-linux/build/glibc/csu/crti.o `/Develop/parisc-linux/xc/bin/hppa-linux-gcc
--print-file-name=crtbegin.o` /Develop/parisc-linux/build/glibc/iconv/iconvconfig.o
/Develop/parisc-linux/build/glibc/iconv/strtab.o /Develop/parisc-linux/build/glibc/iconv/xmalloc.o
/Develop/parisc-linux/build/glibc/iconv/hash-string.o  -Wl,-rpath-link=/Develop/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Develop/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/Develop/parisc-linux/build/gl
ibc/nss:/Develop/parisc-linux/build/glibc/nis:/Develop/parisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/build/glibc/linuxthreads
/Develop/parisc-linux/build/glibc/libc.so.6 /Develop/parisc-linux/build/glibc/libc_nonshared.a
-lgcc `/Develop/parisc-linux/xc/bin/hppa-linux-gcc --print-file-name=crtend.o`
/Develop/parisc-linux/build/glibc/csu/crtn.o
/Develop/parisc-linux/build/glibc/elf/ld.so.1: undefined reference to `set_dp'
collect2: ld returned 1 exit status
make[2]: *** [/Develop/parisc-linux/build/glibc/iconv/iconvconfig] Error
1
make[2]: Leaving directory `/Develop/parisc-linux/sources/glibc/iconv'
make[1]: *** [iconv/others] Error 2
make[1]: Leaving directory `/Develop/parisc-linux/sources/glibc'
make: *** [all] Error 2

the glibc src cames from last debian pkg with patches applied and configured
with following options:
# unset LD_LIBRARY_PATH; unset LD_RUN_PATH; export CC=/Develop/parisc-linux/xc/bin/hppa-linux-gcc;
export CLFAGS="-O2 -g";  export PATH="/Develop/parisc-linux/xc/bin:$PATH";
/Develop/parisc-linux/sources/glibc/configure --target=hppa-linux --host=hppa-linux
--build=hppa-linux --prefix=/opt/palinux/hppa-linux --without-cvs --disable-profile
--enable-hacker-mode --enable-add-ons=linuxthreads --with-headers=/Develop/parisc-linux/sources/linux/include


and the gcc-snapshot sources cames from the latest gcc-scnapshot-20040110
debian pkg and the 'preliminary x compiler' is configured with following
options:
# export PATH="/Develop/parisc-linux/xc/bin:$PATH"; /Develop/parisc-linux/sources/gcc/configure
--target=hppa-linux --host=hppa-linux --build=hppa-linux --prefix=/Develop/parisc-linux/xc
--disable-shared --disable-nls --enable-languages=c 

Any idea?

Thanks in advance,
    Joel

>-- Original Message --
>Date: Fri, 09 Jan 2004 20:37:07 +0000
>From: Joel Soete <soete.joel@tiscali.be>
>To: Carlos O'Donell <carlos@baldric.uwo.ca>
>Cc: parisc-linux@lists.parisc-linux.org, debian-hppa@lists.debian.org
>Subject: Re: [parisc-linux] [Status] hppa's userspace in 2004 (looking back)
>
>
>Joel Soete wrote:
[snip]
> (but I don't much retry because of gnu pserver cvs pb; in the mean time
I
> read that new anonymous access would be with ssh, even though last weekend
> it was not yet operational?) 
[snip]

CVSROOT=":ext:anoncvs@subve
>sions.gnu.org:/cvsroot/gcc"

seems to be operational now with CVS_RSH="ssh"

hth,
	Joel

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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable
	to	open an initial console."
Date: Tue, 13 Jan 2004 00:23:49 +0100
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Anyway, the PDC driver should work for all architectures, independent of
the serial type (this was my concept of this driver).

Is the driver fully ported to the 2.6 kernel ?
In the first log, the line "Warning: unable to open an initial console."
was shown, so the open on this device fails !
Futher there is no PDC driver registered under proc/devices !

I have never tested a 2.6 kernel on a HP.

Christoph


Helge Deller wrote:
> On Saturday 27 December 2003 22:00, Joel Soete wrote:
> 
>>I try to see if pdc_console could be operational on my c110 with kernel 2.6.0-pa5.
>>
>>So I uncheck serial_mux and check pdc_console with make menuconfig (edit also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
>>Then I create the special file "mknod /dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab
>>
>>(I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)
>>
>>But no way to make it works?
>>
>>Linux version 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease) 3FP[0] enabled: Rev 1 Model 11 
>>                               The 32-bit Kernel has started...
>>Initialized PDC Console for debugging.
>>Determining PDC firmware type: System Map.
>>model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0avers  0000000d
>>CPUID vers 11 rev 13 (0x0000016d)
>>model 9000/777/C110
>>Total Memory: 128 Mb
>>[snip]
>>Soft power switch enabled, polling @ 0xf0140000.
>>Console: switching to colour frame buffer device 128x48
>>pty: 256 Unix98 ptys configured
>>lp: driver loaded but no devices found
>>Generic RTC Driver v1.07
>>Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
>>ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
>>ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
> 
> 
> Your machine has standard serial ports. So why do you want to
> switch on serial_mux stuff when it's not needed (and not possible
> since the device is not present in your machine) ?
> 
> Helge
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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On Sun, Jan 11, 2004 at 03:43:55PM -0500, Carlos O'Donell wrote:
> Excellent. You haven't tried profiling any programs have you? :)
> Compile with CFLAGS=-pg, run-em, then run gprof on the gmon.out output?

Here's "apps/openssl speed rsa" gprof output from my c3000.
(2.6.0-pa7, Debian testing)

TBH, it looks wrong.
I didn't expect "get_dsa1024" to show up.
I suspect I didn't get all the various CFLAGS.
I edited */Makefile and added -pg by hand to "CFLAG" variables
and then "make clean" + "make".

hth,
grant


Flat profile:

Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total           
 time   seconds   seconds    calls  Ts/call  Ts/call  name    
 63.64      0.07     0.07                             lock_dbg_cb
 27.27      0.10     0.03                             check_end
  9.09      0.11     0.01                             call_frame_dummy
  0.00      0.11     0.00       16     0.00     0.00  Time_F
  0.00      0.11     0.00        8     0.00     0.00  pkey_print_message
  0.00      0.11     0.00        1     0.00     0.00  destroy_ui_method
  0.00      0.11     0.00        1     0.00     0.00  do_cmd
  0.00      0.11     0.00        1     0.00     0.00  get_dsa1024
  0.00      0.11     0.00        1     0.00     0.00  get_dsa2048
  0.00      0.11     0.00        1     0.00     0.00  get_dsa512
  0.00      0.11     0.00        1     0.00     0.00  load_config
  0.00      0.11     0.00        1     0.00     0.00  make_config_name
  0.00      0.11     0.00        1     0.00     0.00  prog_init
  0.00      0.11     0.00        1     0.00     0.00  program_name
  0.00      0.11     0.00        1     0.00     0.00  setup_ui_method
  0.00      0.11     0.00        1     0.00     0.00  speed_main

 %         the percentage of the total running time of the
time       program used by this function.

cumulative a running sum of the number of seconds accounted
 seconds   for by this function and those listed above it.

 self      the number of seconds accounted for by this
seconds    function alone.  This is the major sort for this
           listing.

calls      the number of times this function was invoked, if
           this function is profiled, else blank.
 
 self      the average number of milliseconds spent in this
ms/call    function per call, if this function is profiled,
	   else blank.

 total     the average number of milliseconds spent in this
ms/call    function and its descendents per call, if this 
	   function is profiled, else blank.

name       the name of the function.  This is the minor sort
           for this listing. The index shows the location of
	   the function in the gprof listing. If the index is
	   in parenthesis it shows where it would appear in
	   the gprof listing if it were to be printed.

		     Call graph (explanation follows)


granularity: each sample hit covers 2 byte(s) for 9.09% of 0.11 seconds

index % time    self  children    called     name
                                                 <spontaneous>
[1]     63.6    0.07    0.00                 lock_dbg_cb [1]
-----------------------------------------------
                                                 <spontaneous>
[2]     27.3    0.03    0.00                 check_end [2]
-----------------------------------------------
                                                 <spontaneous>
[3]      9.1    0.01    0.00                 call_frame_dummy [3]
-----------------------------------------------
                0.00    0.00      16/16          speed_main [16]
[4]      0.0    0.00    0.00      16         Time_F [4]
-----------------------------------------------
                0.00    0.00       8/8           speed_main [16]
[5]      0.0    0.00    0.00       8         pkey_print_message [5]
-----------------------------------------------
                0.00    0.00       1/1           main [131]
[6]      0.0    0.00    0.00       1         destroy_ui_method [6]
-----------------------------------------------
                0.00    0.00       1/1           main [131]
[7]      0.0    0.00    0.00       1         do_cmd [7]
                0.00    0.00       1/1           speed_main [16]
-----------------------------------------------
                0.00    0.00       1/1           speed_main [16]
[8]      0.0    0.00    0.00       1         get_dsa1024 [8]
-----------------------------------------------
                0.00    0.00       1/1           speed_main [16]
[9]      0.0    0.00    0.00       1         get_dsa2048 [9]
-----------------------------------------------
                0.00    0.00       1/1           speed_main [16]
[10]     0.0    0.00    0.00       1         get_dsa512 [10]
-----------------------------------------------
                0.00    0.00       1/1           speed_main [16]
[11]     0.0    0.00    0.00       1         load_config [11]
-----------------------------------------------
                0.00    0.00       1/1           main [131]
[12]     0.0    0.00    0.00       1         make_config_name [12]
-----------------------------------------------
                0.00    0.00       1/1           main [131]
[13]     0.0    0.00    0.00       1         prog_init [13]
-----------------------------------------------
                0.00    0.00       1/1           main [131]
[14]     0.0    0.00    0.00       1         program_name [14]
-----------------------------------------------
                0.00    0.00       1/1           main [131]
[15]     0.0    0.00    0.00       1         setup_ui_method [15]
-----------------------------------------------
                0.00    0.00       1/1           do_cmd [7]
[16]     0.0    0.00    0.00       1         speed_main [16]
                0.00    0.00      16/16          Time_F [4]
                0.00    0.00       8/8           pkey_print_message [5]
                0.00    0.00       1/1           load_config [11]
                0.00    0.00       1/1           get_dsa512 [10]
                0.00    0.00       1/1           get_dsa1024 [8]
                0.00    0.00       1/1           get_dsa2048 [9]
-----------------------------------------------

 This table describes the call tree of the program, and was sorted by
 the total amount of time spent in each function and its children.

 Each entry in this table consists of several lines.  The line with the
 index number at the left hand margin lists the current function.
 The lines above it list the functions that called this function,
 and the lines below it list the functions this one called.
 This line lists:
     index	A unique number given to each element of the table.
		Index numbers are sorted numerically.
		The index number is printed next to every function name so
		it is easier to look up where the function in the table.

     % time	This is the percentage of the `total' time that was spent
		in this function and its children.  Note that due to
		different viewpoints, functions excluded by options, etc,
		these numbers will NOT add up to 100%.

     self	This is the total amount of time spent in this function.

     children	This is the total amount of time propagated into this
		function by its children.

     called	This is the number of times the function was called.
		If the function called itself recursively, the number
		only includes non-recursive calls, and is followed by
		a `+' and the number of recursive calls.

     name	The name of the current function.  The index number is
		printed after it.  If the function is a member of a
		cycle, the cycle number is printed between the
		function's name and the index number.


 For the function's parents, the fields have the following meanings:

     self	This is the amount of time that was propagated directly
		from the function into this parent.

     children	This is the amount of time that was propagated from
		the function's children into this parent.

     called	This is the number of times this parent called the
		function `/' the total number of times the function
		was called.  Recursive calls to the function are not
		included in the number after the `/'.

     name	This is the name of the parent.  The parent's index
		number is printed after it.  If the parent is a
		member of a cycle, the cycle number is printed between
		the name and the index number.

 If the parents of the function cannot be determined, the word
 `<spontaneous>' is printed in the `name' field, and all the other
 fields are blank.

 For the function's children, the fields have the following meanings:

     self	This is the amount of time that was propagated directly
		from the child into the function.

     children	This is the amount of time that was propagated from the
		child's children to the function.

     called	This is the number of times the function called
		this child `/' the total number of times the child
		was called.  Recursive calls by the child are not
		listed in the number after the `/'.

     name	This is the name of the child.  The child's index
		number is printed after it.  If the child is a
		member of a cycle, the cycle number is printed
		between the name and the index number.

 If there are any cycles (circles) in the call graph, there is an
 entry for the cycle-as-a-whole.  This entry shows who called the
 cycle (as parents) and the members of the cycle (as children.)
 The `+' recursive calls entry shows the number of function calls that
 were internal to the cycle, and the calls entry for each member shows,
 for that member, how many times it was called from other members of
 the cycle.


Index by function name

   [4] Time_F                  [9] get_dsa2048            [13] prog_init
   [3] call_frame_dummy       [10] get_dsa512             [14] program_name
   [2] check_end              [11] load_config            [15] setup_ui_method
   [6] destroy_ui_method       [1] lock_dbg_cb            [16] speed_main
   [7] do_cmd                 [12] make_config_name
   [8] get_dsa1024             [5] pkey_print_message


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Well, if It helps any, I have family in Pennsylvania.  Littlestown, to be
exact.  And my favorite hockey team is the penguins...

-----Original Message-----
From: David Huggins-Daines [mailto:dhd@pobox.com] 
Sent: Friday, January 09, 2004 8:45 AM
To: Quinn, Timothy
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] C200 available to good home (Pittsburgh area )


On Jan 9, 2004, at 5:37 AM, Quinn, Timothy wrote:

> What does the thing weigh?  I am in Atlanta, but might be able to pay 
> for
> shipping.  God knows I can use something better than my h50...

Funny, I never actually weighed it myself until now.  It weighs exactly 
50 pounds.  Shipping is actually not as much as I thought - it should 
only be $25 or $30 for UPS Ground.



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Subject: =?ISO-8859-1?Q?Re=3A=20=5Bparisc=2Dlinux=5D=202=2E6=20=26=20pdc=5Fconsole=20pb=20on=20c110=3A=20=22Warning=3A=20unable=09to=09open=20an=20initial=20console=2E=22?=
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Hello Christoph,

>
>Anyway, the PDC driver should work for all architectures, independent of
>the serial type (this was my concept of this driver).
>
>Is the driver fully ported to the 2.6 kernel ?
>In the first log, the line "Warning: unable to open an initial console."
>was shown, so the open on this device fails !
>Futher there is no PDC driver registered under proc/devices !

That a better explanation ;) (afaik there are some changes from 2.4 to 2.6
driver's implementation and also some paper about the subject, I will see)

>I have never tested a 2.6 kernel on a HP.

Another question: I also try it with 2.4 (32 or 64 bit kernel) running on
a b2k.
But this b2k is equiped with an ide cdrom and when I try to boot a kernel
with builtin pdc driver (2.4 and 2.6), the boot process hung (the green led
of the cdrom stay continuously bright, so it seems a pb of initialization
in the pdc_console driver?. This pb also occurs even if I unplug the cdrom-drive
or remove ide-cdrom driver from kernels. otc kernels boot well with builtin
ide-cdrom driver without pdc_console driver)

Any other idea?

Thanks again,
    Joel




Christoph


Helge Deller wrote:
> On Saturday 27 December 2003 22:00, Joel Soete wrote:
> 
>
>>I try to see if pdc_console could be operational on my c110 with kernel
2.6.0-pa5.
>>
>>So I uncheck serial_mux and check pdc_console with make menuconfig (edit
also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
>>Then I create the special file "mknod
>/dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab
>>
>>(I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)
>>
>>But no way to make it works?
>>
>>Linux 
>ersion 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease)
3FP[0] enabled: Rev 1 Model 11 
>>                               The 32-bit Kernel has started...
>>Initialized PDC Console for debugging.
>>Determining PDC firmware type: Syste
> Map.
>>model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a
0avers  0000000d
>>CPUID vers 11 rev 13 (0x0000016d)
>>model 9000/777/C110
>>Total Memory: 128 Mb
>>[snip]
>>Soft power switch enabled, polling @ 0xf0140000.
>
>Console: switching to colour frame buffer device 128x48
>>pty: 256 Unix98 ptys configured
>>lp: driver loaded but no devices found
>>Generic RTC Driver v1.07
>>Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
>>ttyS0 at MM
>O 0xffd05800 (irq = 90) is a 16550A
>>ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
> 
> 
> Your machine has standard serial ports. So why do you want to
> switch on serial_mux stuff when it's not needed (and not possible
> since the device is
>not present in your machine) ?
> 
> Helge
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 



-- 
------
>------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at

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Hi Carlos,

btw may I ask your patch so that I can test it in my tc process (and why
not trying profiling on kernel build ;) )

Thanks in advance,
    Joel

>-- Original Message --
>Date: Sun, 11 Jan 2004 15:43:55 -0500
>From: Carlos O'Donell <carlos@baldric.uwo.ca>
>To: Grant Grundler <grundler@parisc-linux.org>
>Cc: parisc-linux@lists.parisc-linux.org, debian-hppa@lists.debian.org
>Subject: Re: [parisc-linux] [Testers wanted] New glibc with profiling fixed.
>
>
>On Sat, Jan 10, 2004 at 09:09:06PM -0700, Grant Grundler wrote:
> On Mon, Jan 05, 2004 at 02:48:39PM -0500, Carlos O'Donell wrote:
> > http://www.parisc-linux.org/~carlos/glibc-2.3.2-debs-2004-01-05/
> 
> I finally installed these (libc6 and libc6-
>ev) and live is still good.
> thanks carlos!

Excellent. You haven't tried profiling any programs have you? :)
Compile with CFLAGS=-pg, run-em, then run gprof on the gmon.out output?

c.

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>inux mailing list
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Hi,
just installed a fresh Debian on a C3000/8500. I did a kernel
recompile and after 15 minutes binutils terminated compilation,
complaining about too long arguments.  However, is this normal compilation
time? I know this is not an acurate metric, but gives an idea. I
just did an make oldconfig and then rebuilt the kernel. What is the normal
kernel compilation time on these machines?
The running kernel was 2.4.21.

	/Ivar


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> just installed a fresh Debian on a C3000/8500. I did a kernel
> recompile and after 15 minutes binutils terminated compilation,
> complaining about too long arguments.  However, is this normal compilation
> time? I know this is not an acurate metric, but gives an idea. I
> just did an make oldconfig and then rebuilt the kernel. What is the normal
> kernel compilation time on these machines?
> The running kernel was 2.4.21.

do you have latest binutils installed? it shouldn't terminate. can you
please post your config and binutils/gcc version? ~10-15 minutes sounds
reasonable for a c3k, but depends on amount of memory, speed of disk, 
etc...

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> And my favorite hockey team is the penguins...

Who had an impressive win last night over the Flyers... Way to go, Pens.

BB



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On Tue, 2004-01-13 at 10:56, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/01/13 08:56:03
> 
> Modified files:
> 	.              : Makefile 
> 	drivers/parisc : ccio-dma.c dino.c 
> 	include/asm-parisc: pci.h 
> 
> Log message:
> Add Dino support for extended and non-contiguous PCI windows.
> 
> The current code assumes the dino has a single 8MB window.  However,
> this isn't sufficient to support PCI video cards, which can have much
> bigger windows.
> 
> This code adds the ability to translate an arbitrary dino map (which must
> still be correctly set up by firmware) into the PCI resource table.

# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
#	           ChangeSet	1.1531  -> 1.1532 
#	drivers/parisc/dino.c	1.13    -> 1.14   
#	drivers/parisc/ccio-dma.c	1.15    -> 1.16   
#	include/asm-parisc/pci.h	1.10    -> 1.11   
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 04/01/13	jejb@raven.il.steeleye.com	1.1532
# Add support for extended and non-contiguous dino PCI windows
# --------------------------------------------
#
diff -Nru a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
--- a/drivers/parisc/ccio-dma.c	Tue Jan 13 09:51:57 2004
+++ b/drivers/parisc/ccio-dma.c	Tue Jan 13 09:51:57 2004
@@ -1627,11 +1627,11 @@
 
 	if (!ioc) {
 		parent = &iomem_resource;
-	} else if ((ioc->mmio_region->start <= dev->hpa) &&
-			(dev->hpa < ioc->mmio_region->end)) {
+	} else if ((ioc->mmio_region->start <= res->start) &&
+			(res->end <= ioc->mmio_region->end)) {
 		parent = ioc->mmio_region;
-	} else if (((ioc->mmio_region + 1)->start <= dev->hpa) &&
-			(dev->hpa < (ioc->mmio_region + 1)->end)) {
+	} else if (((ioc->mmio_region + 1)->start <= res->start) &&
+			(res->end <= (ioc->mmio_region + 1)->end)) {
 		parent = ioc->mmio_region + 1;
 	} else {
 		return -EBUSY;
diff -Nru a/drivers/parisc/dino.c b/drivers/parisc/dino.c
--- a/drivers/parisc/dino.c	Tue Jan 13 09:51:57 2004
+++ b/drivers/parisc/dino.c	Tue Jan 13 09:51:57 2004
@@ -572,8 +572,16 @@
 	} else if(bus->parent == NULL) {
 		/* must have a dino above it, reparent the resources
 		 * into the dino window */
+		int i;
+		struct resource *res = &dino_dev->hba.lmmio_space;
+
 		bus->resource[0] = &(dino_dev->hba.io_space);
-		bus->resource[1] = &(dino_dev->hba.lmmio_space); 
+		for(i = 0; i < DINO_MAX_LMMIO_RESOURCES; i++) {
+			if(res[i].flags == 0)
+				break;
+			bus->resource[i+1] = &res[i];
+		}
+
 	} else if(bus->self) {
 		int i;
 
@@ -740,9 +748,9 @@
 static int __init
 dino_bridge_init(struct dino_device *dino_dev, const char *name)
 {
-	unsigned long io_addr, bpos;
-	int result;
-	struct resource *res;
+	unsigned long io_addr;
+	int result, i, count=0;
+	struct resource *res, *prevres = NULL;
 	/*
 	 * Decoding IO_ADDR_EN only works for Built-in Dino
 	 * since PDC has already initialized this.
@@ -754,21 +762,51 @@
 		return -ENODEV;
 	}
 
-	for (bpos = 0; (io_addr & (1 << bpos)) == 0; bpos++)
-		;
-
 	res = &dino_dev->hba.lmmio_space;
-	res->flags = IORESOURCE_MEM;
+	for (i = 0; i < 32; i++) {
+		unsigned long start, end;
+
+		if((io_addr & (1 << i)) == 0)
+			continue;
 
-	res->start = (unsigned long)(signed int)(0xf0000000 | (bpos << 23));
-	res->end = res->start + 8 * 1024 * 1024 - 1;
+		start = (unsigned long)(signed int)(0xf0000000 | (i << 23));
+		end = start + 8 * 1024 * 1024 - 1;
 
-	result = ccio_request_resource(dino_dev->hba.dev, res);
-	if (result < 0) {
-		printk(KERN_ERR "%s: failed to claim PCI Bus address space!\n", name);
-		return result;
+		DBG("DINO RANGE %d is at 0x%lx-0x%lx\n", count,
+		    start, end);
+
+		if(prevres && prevres->end + 1 == start) {
+			prevres->end = end;
+		} else {
+			if(count >= DINO_MAX_LMMIO_RESOURCES) {
+				printk(KERN_ERR "%s is out of resource windows for range %d (0x%lx-0x%lx)\n", name, count, start, end);
+				break;
+			}
+			prevres = res;
+			res->start = start;
+			res->end = end;
+			res->flags = IORESOURCE_MEM;
+			res->name = kmalloc(64, GFP_KERNEL);
+			if(res->name)
+				snprintf((char *)res->name, 64, "%s LMMIO %d",
+					 name, count);
+			res++;
+			count++;
+		}
 	}
 
+	res = &dino_dev->hba.lmmio_space;
+
+	for(i = 0; i < DINO_MAX_LMMIO_RESOURCES; i++) {
+		if(res[i].flags == 0)
+			break;
+
+		result = ccio_request_resource(dino_dev->hba.dev, &res[i]);
+		if (result < 0) {
+			printk(KERN_ERR "%s: failed to claim PCI Bus address space %d (0x%lx-0x%lx)!\n", name, i, res[i].start, res[i].end);
+			return result;
+		}
+	}
 	return 0;
 }
 
@@ -849,10 +887,8 @@
 	res = &dino_dev->hba.io_space;
 	if (dev->id.hversion == 0x680 || is_card_dino(&dev->id)) {
 		res->name = "Dino I/O Port";
-	        dino_dev->hba.lmmio_space.name = "Dino LMMIO";
 	} else {
 		res->name = "Cujo I/O Port";
-	        dino_dev->hba.lmmio_space.name = "Cujo LMMIO";
 	}
 	res->start = HBA_PORT_BASE(dino_dev->hba.hba_num);
 	res->end = res->start + (HBA_PORT_SPACE_SIZE - 1);
diff -Nru a/include/asm-parisc/pci.h b/include/asm-parisc/pci.h
--- a/include/asm-parisc/pci.h	Tue Jan 13 09:51:57 2004
+++ b/include/asm-parisc/pci.h	Tue Jan 13 09:51:57 2004
@@ -56,6 +56,11 @@
 	struct resource lmmio_space;	/* bus addresses < 4Gb */
 	struct resource elmmio_space;	/* additional bus addresses < 4Gb */
 	struct resource gmmio_space;	/* bus addresses > 4Gb */
+	/* NOTE: Dino code assumes it can use *all* of the lmmio_space,
+	 * elmmio_space and gmmio_space as a contiguous array of
+	 * resources.  This #define represents the array size */
+	#define DINO_MAX_LMMIO_RESOURCES	3
+
 	unsigned long   lmmio_space_offset;  /* CPU view - PCI view */
 	void *          iommu;          /* IOMMU this device is under */
 	/* REVISIT - spinlock to protect resources? */



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From: Ivar Orskaug <Ivar.Olav.Harstad.Orskaug@idi.ntnu.no>
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On Tue, 13 Jan 2004, Randolph Chung wrote:

> > just installed a fresh Debian on a C3000/8500. I did a kernel
> > recompile and after 15 minutes binutils terminated compilation,
> > complaining about too long arguments.  However, is this normal compilation
> > time? I know this is not an acurate metric, but gives an idea. I
> > just did an make oldconfig and then rebuilt the kernel. What is the normal
> > kernel compilation time on these machines?
> > The running kernel was 2.4.21.
>
> do you have latest binutils installed? it shouldn't terminate. can you
> please post your config and binutils/gcc version? ~10-15 minutes sounds
> reasonable for a c3k, but depends on amount of memory, speed of disk,
> etc...

	OK, running binutils 2.14.90.0.7-3, gcc 3.3.2

	output from make:

	real2.S:126: Error: too many positional arguments
	make[1]: *** [real2.o] Error 1
	make[1]: Leaving directory
	`/usr/src/kernel-source-2.4.21/arch/parisc/kernel'
	make: *** [_dir_arch/parisc/kernel] Error 2

	line 126 in
/usr/src/kernel-source-2.4.21/arch/parisc/kernel/real2.S:

	 126          load32  PA(save_cr_space + (N_SAVED_REGS * REG_SZ)), %r26
>
> randolph
>


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] kernel compilation time
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Either apply manualy this patch (in fact remove spaces):
<http://lists.parisc-linux.org/pipermail/parisc-linux/2003-July/020426.html>

or use a more recent kernel (cvs one seems ok for me ;) )

hth,
    Joel

>-- Original Message --
>Date: Tue, 13 Jan 2004 18:29:21 +0100 (CET)
>From: Ivar Orskaug <Ivar.Olav.Harstad.Orskaug@idi.ntnu.no>
>To: parisc-linux@lists.parisc-linux.org
>Subject: Re: [parisc-linux] kernel compilation time
>
>
>On Tue, 13 Jan 2004, Randolph Chung wrote:

> > just installed a fresh Debian on a C3000/8500. I did a kernel
> > recompile and after 15 minutes binutils terminated compilation,
> > complaining about too long arguments.  However, is this normal com
>ilation
> > time? I know this is not an acurate metric, but gives an idea. I
> > just did an make oldconfig and then rebuilt the kernel. What is the normal
> > kernel compilation time on these machines?
> > The running kernel was 2.4.21.
>
> do y
>u have latest binutils installed? it shouldn't terminate. can you
> please post your config and binutils/gcc version? ~10-15 minutes sounds
> reasonable for a c3k, but depends on amount of memory, speed of disk,
> etc...

	OK, running binutils 2.1
>.90.0.7-3, gcc 3.3.2

	output from make:

	real2.S:126: Error: too many positional arguments
	make[1]: *** [real2.o] Error 1
	make[1]: Leaving directory
	`/usr/src/kernel-source-2.4.21/arch/parisc/kernel'
	make: *** [_dir_arch/parisc/kernel] Er
>or 2

	line 126 in
/usr/src/kernel-source-2.4.21/arch/parisc/kernel/real2.S:

	 126          load32  PA(save_cr_space + (N_SAVED_REGS * REG_SZ)), %r26
>
> randolph
>
_______________________________________________
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p
>risc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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On Tue, 13 Jan 2004, Joel Soete wrote:

> Either apply manualy this patch (in fact remove spaces):
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2003-July/020426.html>
>
> or use a more recent kernel (cvs one seems ok for me ;) )

	A CVS checkout worked, the other tarballs propably breaks with
	Sarge, thanks,

	Ivar

>
> hth,
>     Joel
>
> >-- Original Message --
> >Date: Tue, 13 Jan 2004 18:29:21 +0100 (CET)
> >From: Ivar Orskaug <Ivar.Olav.Harstad.Orskaug@idi.ntnu.no>
> >To: parisc-linux@lists.parisc-linux.org
> >Subject: Re: [parisc-linux] kernel compilation time
> >
> >
> >On Tue, 13 Jan 2004, Randolph Chung wrote:
>
> > > just installed a fresh Debian on a C3000/8500. I did a kernel
> > > recompile and after 15 minutes binutils terminated compilation,
> > > complaining about too long arguments.  However, is this normal com
> >ilation
> > > time? I know this is not an acurate metric, but gives an idea. I
> > > just did an make oldconfig and then rebuilt the kernel. What is the normal
> > > kernel compilation time on these machines?
> > > The running kernel was 2.4.21.
> >
> > do y
> >u have latest binutils installed? it shouldn't terminate. can you
> > please post your config and binutils/gcc version? ~10-15 minutes sounds
> > reasonable for a c3k, but depends on amount of memory, speed of disk,
> > etc...
>
> 	OK, running binutils 2.1
> >.90.0.7-3, gcc 3.3.2
>
> 	output from make:
>
> 	real2.S:126: Error: too many positional arguments
> 	make[1]: *** [real2.o] Error 1
> 	make[1]: Leaving directory
> 	`/usr/src/kernel-source-2.4.21/arch/parisc/kernel'
> 	make: *** [_dir_arch/parisc/kernel] Er
> >or 2
>
> 	line 126 in
> /usr/src/kernel-source-2.4.21/arch/parisc/kernel/real2.S:
>
> 	 126          load32  PA(save_cr_space + (N_SAVED_REGS * REG_SZ)), %r26
> >
> > randolph
> >
> _______________________________________________
> parisc-linux mailing list
> p
> >risc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>
>
> -------------------------------------------------------------------------
> Tiscali ADSL: 12 mois  29,50 /mois! L'Internet rapide, c'est pour tout
> le monde.
> http://reg.tiscali.be/default.asp?lg=fr
>
>


From - Thu Nov 08 21:30:39 2018
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From: Christoph Plattner <christoph.plattner@gmx.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable
	to open an initial console."
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Cc: Helge Deller <deller@gmx.de>, parisc-linux@lists.parisc-linux.org
To: Joel Soete <soete.joel@tiscali.be>
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Hello,

sorry  have no idea for the hang up on boot!
BUT: experiments with the MUX driver has show, that
using not ttyB0 (but 1,2...) there system also
hangs up.
BUT: This is no explanation for this problem here.
The PDC console driver calls the "BIOS-like" routines
for printing out (and polling keys !).
All the "printk()" are printed directly (without my
PDC console driver), and everything running via
"/dev/console" or "/dev/ttyB0" goes through the
driver. Is the kernel so far, that an `open(
"/dev/console"' is already called (just done in
kernel before calling "/sbin/init" or "/bin/sh") ?

Christoph


Joel Soete wrote:
> Hello Christoph,
> 
> 
>>Anyway, the PDC driver should work for all architectures, independent of
>>the serial type (this was my concept of this driver).
>>
>>Is the driver fully ported to the 2.6 kernel ?
>>In the first log, the line "Warning: unable to open an initial console."
>>was shown, so the open on this device fails !
>>Futher there is no PDC driver registered under proc/devices !
> 
> 
> That a better explanation ;) (afaik there are some changes from 2.4 to 2.6
> driver's implementation and also some paper about the subject, I will see)
> 
> 
>>I have never tested a 2.6 kernel on a HP.
> 
> 
> Another question: I also try it with 2.4 (32 or 64 bit kernel) running on
> a b2k.
> But this b2k is equiped with an ide cdrom and when I try to boot a kernel
> with builtin pdc driver (2.4 and 2.6), the boot process hung (the green led
> of the cdrom stay continuously bright, so it seems a pb of initialization
> in the pdc_console driver?. This pb also occurs even if I unplug the cdrom-drive
> or remove ide-cdrom driver from kernels. otc kernels boot well with builtin
> ide-cdrom driver without pdc_console driver)
> 
> Any other idea?
> 
> Thanks again,
>     Joel
> 
> 
> 
> 
> Christoph
> 
> 
> Helge Deller wrote:
> 
>>On Saturday 27 December 2003 22:00, Joel Soete wrote:
>>
>>
>>
>>>I try to see if pdc_console could be operational on my c110 with kernel
>>
> 2.6.0-pa5.
> 
>>>So I uncheck serial_mux and check pdc_console with make menuconfig (edit
>>
> also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
> 
>>>Then I create the special file "mknod
>>
>>/dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab
>>
>>>(I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)
>>>
>>>But no way to make it works?
>>>
>>>Linux 
>>
>>ersion 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease)
> 
> 3FP[0] enabled: Rev 1 Model 11 
> 
>>>                              The 32-bit Kernel has started...
>>>Initialized PDC Console for debugging.
>>>Determining PDC firmware type: Syste
>>
>>Map.
>>
>>>model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a
>>
> 0avers  0000000d
> 
>>>CPUID vers 11 rev 13 (0x0000016d)
>>>model 9000/777/C110
>>>Total Memory: 128 Mb
>>>[snip]
>>>Soft power switch enabled, polling @ 0xf0140000.
>>
>>Console: switching to colour frame buffer device 128x48
>>
>>>pty: 256 Unix98 ptys configured
>>>lp: driver loaded but no devices found
>>>Generic RTC Driver v1.07
>>>Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
>>>ttyS0 at MM
>>
>>O 0xffd05800 (irq = 90) is a 16550A
>>
>>>ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
>>
>>
>>Your machine has standard serial ports. So why do you want to
>>switch on serial_mux stuff when it's not needed (and not possible
>>since the device is
>>not present in your machine) ?
>>
>>Helge
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
>>
> 
> 
> 
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at



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Subject: [parisc-linux] init and exit text problem
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Our vmlinux.lds.S doesn't discard init and exit text segments.  Anyone
want to look into fixing this?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


From - Thu Nov 08 21:30:39 2018
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From: Brett Gmoser <aftli@optonline.net>
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Subject: [parisc-linux] Raw I/O Problems with inb()
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Hello everybody.

I apologize if this is off topic, but I have seen relevant information posted to this list.  And believe me, I have searched everywhere else for a solution to this problem.

To give some short background information, I am programming the Linux client for a project that basically counts a users keystrokes, and sends the amount to a server which displays the count for all the world to see.  Teams and individuals compete from around the world, and we are approaching 5000 members.

At any rate, the application is written in C/C++.  I am using iopl() for permissions management, and inb() for reading raw data directly from the PS/2 keyboard to test if a key has been pressed.  All of this works great, and the program is complete, except for one problem.

It seems that on Athlon XP systems using PS/2 mice, inb(0x64) always says there is data waiting from the keyboard, when it is in fact mouse data.  I assume that different architecture on AMD systems is the cause of the problem, but is there a solution?  There must be.  Here is a snipped of the code I am using currently.  I apologize for the sloppiness of it - it's been modified about 30 times with 30 different solutions to the problem, all of which did not seem to fix it.  Commented out are solutions that I have tried and have not worked.

#define KEYBOARD_PORT 0x60
#define KEYBOARD_STATUS_PORT 0x64

bool keycounter::count(/*wplog* l*/) { // some very simple code to see if a key is being pressed or not.
  const unsigned char kbd_read_mask = 0x01;
  unsigned char status = inb_p(KEYBOARD_STATUS_PORT);
  /* unsigned char status = inb(KEYBOARD_STATUS_PORT);

  /* mouse data? */
//  if (status == 20 && ((status & kbd_read_mask) != 0x01) || (status & 0x21)) { fflush(0); return false; }
//  if(status & kbd_read_mask & 0x20) { fflush(0); return false; }
//  if(!(status & kbd_read_mask & 0x01)) { fflush(0); return false; }
//  if(!((inb(0x379) & 0x20) == 0x20)) { fflush(0); return false; }

  if(status!=20) { fflush(0); return false; }
  unsigned char c = inb(KEYBOARD_PORT);
  if(status==20 && c < TABLE_SIZE) {
    if(c==lastc) {
      fflush(0);
      return false;
    }
    lastc=c;
    fflush(0);
    return true;
  }
  else {   // key has been lifted
    lastc=0;
    fflush(0);
    return false;
  }
}

Thanks in advance for any insight you all may be able to give me!

-- 
Brett Gmoser
aftli@optonline.net


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Subject: [parisc-linux] Non-HP PCI cards & x86 BOOT-ROMS
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Hi,
is it possible to run PCI card boot-roms containing x86 code with an
emulator before loading Linux (perhaps from PALO)? Has anyone succeeded
doing this, or is it "just not possible" for whatever reason? Anyway,
if it was possible, it could really make PA-RISCs more usable.
	I've heard that this is possible on both linux-mips and linux-alpha

	Ivar


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On Fri, Jan 16, 2004 at 12:04:22PM +0100, Ivar Orskaug wrote:
> Hi,
> is it possible to run PCI card boot-roms containing x86 code with an
> emulator before loading Linux (perhaps from PALO)? Has anyone succeeded
> doing this, or is it "just not possible" for whatever reason? Anyway,
> if it was possible, it could really make PA-RISCs more usable.
> 	I've heard that this is possible on both linux-mips and linux-alpha

I don't know, but you can do something similar with DHCP, tftp and a
lifimage.

-- 
Michael Wood <mwood@its.uct.ac.za>


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On Fri, 2004-01-16 12:04:22 +0100, Ivar Orskaug <Ivar.Olav.Harstad.Orskaug@=
idi.ntnu.no>
wrote in message <Pine.GSO.4.58.0401161155280.15789@vier.idi.ntnu.no>:
> is it possible to run PCI card boot-roms containing x86 code with an
> emulator before loading Linux (perhaps from PALO)? Has anyone succeeded
> doing this, or is it "just not possible" for whatever reason? Anyway,
> if it was possible, it could really make PA-RISCs more usable.
> 	I've heard that this is possible on both linux-mips and linux-alpha

You can't compare with Alpha. Alpha is designed with having PC hardware
in mind. This is why it has got some kind of x86 emulator in it's
firmware, so this is a planned feature.

MIPS OTOH is a good architecture to compare with. I don't know if this
has been done before, but of course, in theory, you can execure the PC
boot ROM of PCI cards. IIRC, XFree86 has done that for VGA card's
BIOSes, but IMHO there should be a better option.

Maybe it would be a nice idea to hack bochs to initialize those cards,
but that's a lot of work, though...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
   ret =3D do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TC=
PA));

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On Fri, 2004-01-16 12:55:17 +0100, Jan-Benedict Glaw <jbglaw@lug-owl.de>
wrote in message <20040116115517.GM14285@lug-owl.de>:
> On Fri, 2004-01-16 12:04:22 +0100, Ivar Orskaug <Ivar.Olav.Harstad.Orskau=
g@idi.ntnu.no>
> wrote in message <Pine.GSO.4.58.0401161155280.15789@vier.idi.ntnu.no>:

> Maybe it would be a nice idea to hack bochs to initialize those cards,
> but that's a lot of work, though...

Thinking again about that, it maybe isn't all *that* hard. Bochs already
does know about the concept of shared DRAM and ROM BIOSes etc. Maybe
it's really just enough to hack it's memory class (yup, it's written in
C++) to not back the memory by RAM or on-disk storage, but to redirect
all accesses to physical RAM.

The same is to be done with I/O ports too, of course... For complex card
(SCSI RAID host adaptors), you may need to service interrupts, too:-(

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
   ret =3D do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TC=
PA));

--NdlhywBBVma7OLA/
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Subject: Re: [parisc-linux] Non-HP PCI cards & x86 BOOT-ROMS
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On Fri, Jan 16, 2004 at 12:59:40PM +0100, Jan-Benedict Glaw wrote:
> On Fri, 2004-01-16 12:55:17 +0100, Jan-Benedict Glaw <jbglaw@lug-owl.de>
> wrote in message <20040116115517.GM14285@lug-owl.de>:
> > On Fri, 2004-01-16 12:04:22 +0100, Ivar Orskaug <Ivar.Olav.Harstad.Orskaug@idi.ntnu.no>
> > wrote in message <Pine.GSO.4.58.0401161155280.15789@vier.idi.ntnu.no>:
> 
> > Maybe it would be a nice idea to hack bochs to initialize those cards,
> > but that's a lot of work, though...
> 
> Thinking again about that, it maybe isn't all *that* hard. Bochs already
> does know about the concept of shared DRAM and ROM BIOSes etc. Maybe
> it's really just enough to hack it's memory class (yup, it's written in
> C++) to not back the memory by RAM or on-disk storage, but to redirect
> all accesses to physical RAM.
> 
> The same is to be done with I/O ports too, of course... For complex card
> (SCSI RAID host adaptors), you may need to service interrupts, too:-(

How can you use Bochs? It runs a virtualized machine. The purpose of
running card firmware is to effect the *current* machine with some
configuration process.

c.



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On Fri, 2004-01-16 11:12:19 -0500, Carlos O'Donell <carlos@baldric.uwo.ca>
wrote in message <20040116161219.GT5550@systemhalted>:
> On Fri, Jan 16, 2004 at 12:59:40PM +0100, Jan-Benedict Glaw wrote:
> > Thinking again about that, it maybe isn't all *that* hard. Bochs already
> > does know about the concept of shared DRAM and ROM BIOSes etc. Maybe
> > it's really just enough to hack it's memory class (yup, it's written in
> > C++) to not back the memory by RAM or on-disk storage, but to redirect
> > all accesses to physical RAM.
> >=20
> > The same is to be done with I/O ports too, of course... For complex card
> > (SCSI RAID host adaptors), you may need to service interrupts, too:-(
>=20
> How can you use Bochs? It runs a virtualized machine. The purpose of
> running card firmware is to effect the *current* machine with some
> configuration process.

Boch is vitual. *But* it actually got quite real objects to back all the
physical things (RAM, ROM, etc). If you hack these containers to roll
their changes back into *real* RAM/ROM/whatever, you can affect quite
real hardware.

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
   ret =3D do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TC=
PA));

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>
>Our vmlinux.lds.S doesn't discard init and exit text segments.  Anyone
>want to look into fixing this?
>
is it what you look for:

=========><=========
--- linux-2.6.1-pa3.orig/arch/parisc/kernel/vmlinux.lds.S	2003-09-22 09:06:55.000000000
+0200
+++ linux-2.6.1-pa3/arch/parisc/kernel/vmlinux.lds.S	2004-01-16 18:25:15.175817000
+0100
@@ -102,6 +102,17 @@
 
   _end = . ;
 
+  /* When something in the kernel is NOT compiled as a module, the
+   * module cleanup code and data are put into these segments.  Both
+   * can then be thrown away, as cleanup code is never called unless
+   * it's a module.
+   */
+  /DISCARD/ : {
+	*(.exit.text)
+	*(.exit.data)
+	*(.exitcall.exit)
+	}
+
   /* Stabs debugging sections.  */
   .stab 0 : { *(.stab) }
   .stabstr 0 : { *(.stabstr) }
=========><=========

Unfortunately failled to build kernel because:
[snip]
  	ld  -T arch/parisc/kernel/vmlinux.lds.s arch/parisc/kernel/head.o    init/built-in.o
--start-group  usr/built-in.o  arch/parisc/mm/built-in.o  arch/parisc/kernel/built-in.o
 arch/parisc/math-emu/built-in.o arch/parisc/kernel/init_task.o  kernel/built-in.o
 mm/built-in.o  fs/built-in.o  ipc/built-in.o  security/built-in.o  crypto/built-in.o
 lib/lib.a  arch/parisc/lib/lib.a `gcc -print-libgcc-file-name`  lib/built-in.o
 arch/parisc/lib/built-in.o `gcc -print-libgcc-file-name`  drivers/built-in.o
 sound/built-in.o  arch/parisc/oprofile/built-in.o  net/built-in.o --end-group
 -o .tmp_vmlinux1
local symbol 0: discarded in section `.exit.text' from kernel/built-in.o
local symbol 1: discarded in section `.exit.text' from kernel/built-in.o
local symbol 2: discarded in section `.exit.text' from fs/built-in.o
local symbol 3: discarded in section `.exit.text' from fs/built-in.o
local symbol 4: discarded in section `.exit.text' from fs/built-in.o
local symbol 5: discarded in section `.exit.text' from fs/built-in.o
local symbol 6: discarded in section `.exit.text' from fs/built-in.o
local symbol 7: discarded in section `.exit.text' from fs/built-in.o
local symbol 8: discarded in section `.exit.text' from fs/built-in.o
local symbol 9: discarded in section `.exit.text' from fs/built-in.o
local symbol 10: discarded in section `.exit.text' from fs/built-in.o
local symbol 11: discarded in section `.exit.text' from fs/built-in.o
local symbol 12: discarded in section `.exit.text' from fs/built-in.o
local symbol 13: discarded in section `.exit.text' from fs/built-in.o
local symbol 14: discarded in section `.exit.text' from fs/built-in.o
local symbol 15: discarded in section `.exit.text' from fs/built-in.o
local symbol 16: discarded in section `.exit.text' from fs/built-in.o
local symbol 17: discarded in section `.exit.text' from fs/built-in.o
local symbol 18: discarded in section `.exit.text' from fs/built-in.o
local symbol 19: discarded in section `.exit.text' from fs/built-in.o
local symbol 20: discarded in section `.exit.text' from fs/built-in.o
local symbol 21: discarded in section `.exit.text' from fs/built-in.o
local symbol 22: discarded in section `.exit.text' from fs/built-in.o
local symbol 23: discarded in section `.exit.text' from fs/built-in.o
local symbol 24: discarded in section `.exit.text' from fs/built-in.o
local symbol 25: discarded in section `.exit.text' from fs/built-in.o
local symbol 26: discarded in section `.exit.text' from fs/built-in.o
local symbol 27: discarded in section `.exit.text' from fs/built-in.o
local symbol 28: discarded in section `.exit.text' from drivers/built-in.o
local symbol 29: discarded in section `.exit.text' from drivers/built-in.o
local symbol 30: discarded in section `.exit.text' from drivers/built-in.o
local symbol 31: discarded in section `.exit.text' from drivers/built-in.o
local symbol 32: discarded in section `.exit.text' from drivers/built-in.o
local symbol 33: discarded in section `.exit.text' from drivers/built-in.o
local symbol 34: discarded in section `.exit.text' from drivers/built-in.o
local symbol 35: discarded in section `.exit.text' from drivers/built-in.o
local symbol 36: discarded in section `.exit.text' from drivers/built-in.o
local symbol 37: discarded in section `.exit.text' from drivers/built-in.o
local symbol 38: discarded in section `.exit.text' from drivers/built-in.o
local symbol 39: discarded in section `.exit.text' from drivers/built-in.o
local symbol 40: discarded in section `.exit.text' from drivers/built-in.o
local symbol 41: discarded in section `.exit.text' from drivers/built-in.o
local symbol 42: discarded in section `.exit.text' from drivers/built-in.o
local symbol 43: discarded in section `.exit.text' from drivers/built-in.o
local symbol 44: discarded in section `.exit.text' from drivers/built-in.o
local symbol 45: discarded in section `.exit.text' from drivers/built-in.o
local symbol 46: discarded in section `.exit.text' from drivers/built-in.o
local symbol 47: discarded in section `.exit.text' from drivers/built-in.o
local symbol 48: discarded in section `.exit.text' from drivers/built-in.o
local symbol 49: discarded in section `.exit.text' from drivers/built-in.o
local symbol 50: discarded in section `.exit.text' from drivers/built-in.o
local symbol 51: discarded in section `.exit.text' from drivers/built-in.o
local symbol 52: discarded in section `.exit.text' from drivers/built-in.o
local symbol 53: discarded in section `.exit.text' from drivers/built-in.o
local symbol 54: discarded in section `.exit.text' from drivers/built-in.o
local symbol 55: discarded in section `.exit.text' from drivers/built-in.o
local symbol 56: discarded in section `.exit.text' from drivers/built-in.o
local symbol 57: discarded in section `.exit.text' from drivers/built-in.o
local symbol 58: discarded in section `.exit.text' from drivers/built-in.o
local symbol 59: discarded in section `.exit.text' from drivers/built-in.o
local symbol 60: discarded in section `.exit.text' from drivers/built-in.o
local symbol 61: discarded in section `.exit.text' from drivers/built-in.o
local symbol 62: discarded in section `.exit.text' from drivers/built-in.o
local symbol 63: discarded in section `.exit.text' from drivers/built-in.o
local symbol 64: discarded in section `.exit.text' from drivers/built-in.o
local symbol 65: discarded in section `.exit.text' from drivers/built-in.o
local symbol 66: discarded in section `.exit.text' from drivers/built-in.o
local symbol 67: discarded in section `.exit.text' from drivers/built-in.o
local symbol 68: discarded in section `.exit.text' from drivers/built-in.o
local symbol 69: discarded in section `.exit.text' from drivers/built-in.o
local symbol 70: discarded in section `.exit.text' from drivers/built-in.o
local symbol 71: discarded in section `.exit.text' from drivers/built-in.o
local symbol 72: discarded in section `.exit.text' from drivers/built-in.o
local symbol 73: discarded in section `.exit.text' from drivers/built-in.o
local symbol 74: discarded in section `.exit.text' from drivers/built-in.o
local symbol 75: discarded in section `.exit.text' from drivers/built-in.o
local symbol 76: discarded in section `.exit.text' from drivers/built-in.o
local symbol 77: discarded in section `.exit.text' from drivers/built-in.o
local symbol 78: discarded in section `.exit.text' from drivers/built-in.o
local symbol 79: discarded in section `.exit.text' from drivers/built-in.o
local symbol 80: discarded in section `.exit.text' from drivers/built-in.o
local symbol 81: discarded in section `.exit.text' from drivers/built-in.o
local symbol 82: discarded in section `.exit.text' from drivers/built-in.o
local symbol 83: discarded in section `.exit.text' from drivers/built-in.o
local symbol 84: discarded in section `.exit.text' from drivers/built-in.o
local symbol 85: discarded in section `.exit.text' from drivers/built-in.o
local symbol 86: discarded in section `.exit.text' from drivers/built-in.o
local symbol 87: discarded in section `.exit.text' from drivers/built-in.o
fb_console_exit: discarded in section `.exit.text' from drivers/built-in.o
local symbol 88: discarded in section `.exit.text' from drivers/built-in.o
local symbol 89: discarded in section `.exit.text' from drivers/built-in.o
local symbol 90: discarded in section `.exit.text' from drivers/built-in.o
local symbol 91: discarded in section `.exit.text' from drivers/built-in.o
local symbol 92: discarded in section `.exit.text' from drivers/built-in.o
local symbol 93: discarded in section `.exit.text' from drivers/built-in.o
local symbol 94: discarded in section `.exit.text' from drivers/built-in.o
local symbol 95: discarded in section `.exit.text' from drivers/built-in.o
local symbol 96: discarded in section `.exit.text' from drivers/built-in.o
local symbol 97: discarded in section `.exit.text' from drivers/built-in.o
local symbol 98: discarded in section `.exit.text' from drivers/built-in.o
local symbol 99: discarded in section `.exit.text' from drivers/built-in.o
local symbol 100: discarded in section `.exit.text' from drivers/built-in.o
local symbol 101: discarded in section `.exit.text' from drivers/built-in.o
local symbol 102: discarded in section `.exit.text' from drivers/built-in.o
local symbol 103: discarded in section `.exit.text' from drivers/built-in.o
local symbol 104: discarded in section `.exit.text' from drivers/built-in.o
local symbol 105: discarded in section `.exit.text' from drivers/built-in.o
local symbol 106: discarded in section `.exit.text' from drivers/built-in.o
local symbol 107: discarded in section `.exit.text' from drivers/built-in.o
local symbol 108: discarded in section `.exit.text' from drivers/built-in.o
local symbol 109: discarded in section `.exit.text' from drivers/built-in.o
local symbol 110: discarded in section `.exit.text' from drivers/built-in.o
local symbol 111: discarded in section `.exit.text' from drivers/built-in.o
local symbol 112: discarded in section `.exit.text' from drivers/built-in.o
local symbol 113: discarded in section `.exit.text' from drivers/built-in.o
local symbol 114: discarded in section `.exit.text' from drivers/built-in.o
local symbol 115: discarded in section `.exit.text' from drivers/built-in.o
local symbol 116: discarded in section `.exit.text' from drivers/built-in.o
local symbol 117: discarded in section `.exit.text' from drivers/built-in.o
local symbol 118: discarded in section `.exit.text' from drivers/built-in.o
local symbol 119: discarded in section `.exit.text' from drivers/built-in.o
local symbol 120: discarded in section `.exit.text' from drivers/built-in.o
local symbol 121: discarded in section `.exit.text' from drivers/built-in.o
local symbol 122: discarded in section `.exit.text' from drivers/built-in.o
local symbol 123: discarded in section `.exit.text' from drivers/built-in.o
local symbol 124: discarded in section `.exit.text' from drivers/built-in.o
local symbol 125: discarded in section `.exit.text' from drivers/built-in.o
local symbol 126: discarded in section `.exit.text' from drivers/built-in.o
local symbol 127: discarded in section `.exit.text' from drivers/built-in.o
local symbol 128: discarded in section `.exit.text' from drivers/built-in.o
local symbol 129: discarded in section `.exit.text' from drivers/built-in.o
local symbol 130: discarded in section `.exit.text' from drivers/built-in.o
local symbol 131: discarded in section `.exit.text' from sound/built-in.o
local symbol 132: discarded in section `.exit.text' from sound/built-in.o
local symbol 133: discarded in section `.exit.text' from arch/parisc/oprofile/built-in.o
local symbol 134: discarded in section `.exit.text' from arch/parisc/oprofile/built-in.o
oprofilefs_unregister: discarded in section `.exit.text' from arch/parisc/oprofile/built-in.o
local symbol 135: discarded in section `.exit.text' from arch/parisc/oprofile/built-in.o
local symbol 136: discarded in section `.exit.text' from net/built-in.o
local symbol 137: discarded in section `.exit.text' from net/built-in.o
local symbol 138: discarded in section `.exit.text' from net/built-in.o
local symbol 139: discarded in section `.exit.text' from net/built-in.o
local symbol 140: discarded in section `.exit.text' from net/built-in.o
local symbol 141: discarded in section `.exit.text' from net/built-in.o
local symbol 142: discarded in section `.exit.text' from net/built-in.o
local symbol 143: discarded in section `.exit.text' from net/built-in.o
local symbol 144: discarded in section `.exit.text' from net/built-in.o
local symbol 145: discarded in section `.exit.text' from net/built-in.o
make: *** [.tmp_vmlinux1] Error 1

(btw removing: "+	*(.exit.text)" in the above patch compile and boot (at
least with defconfig which afaik didn't already include module support).

Any idea on what I missed?

hth,
    Joel


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Subject: RE: [parisc-linux] init and exit text problem
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btw, I try to print a hard copy of ld.info (the only place where I found
some interesting info about /DISCARD/) with texi2dvi but this scipt failed.
Is somebody know a tips to help me?

Thanks in advance,
    Joel


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On Fri, 2004-01-16 at 11:50, Joel Soete wrote:
> +  /* When something in the kernel is NOT compiled as a module, the
> +   * module cleanup code and data are put into these segments.  Both
> +   * can then be thrown away, as cleanup code is never called unless
> +   * it's a module.
> +   */
> +  /DISCARD/ : {
> +	*(.exit.text)
> +	*(.exit.data)

This is wrong...exit.text and exit.data are runtime discards, not link
time ones, precisely because of the compile failures you get.

> +	*(.exitcall.exit)

This one should be OK.

I'm not sure we can actually do this, though...I seem to remember that
our 64 bit toolchain is not too happy doing discard sections.

James





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> I'm not sure we can actually do this, though...I seem to remember that
> our 64 bit toolchain is not too happy doing discard sections.

Bugs not withstanding, it does seem to work. We have this in the linker
script already for a while:

#ifdef CONFIG_PARISC64
  /* temporary hack until binutils is fixed to not emit these
     for static binaries */
  /DISCARD/ : {
    *(.dynsym)
    *(.dynstr)
    *(.dynamic)
    *(.hash)
  }
#endif

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Fri, 2004-01-16 at 15:14, Randolph Chung wrote:
> > I'm not sure we can actually do this, though...I seem to remember that
> > our 64 bit toolchain is not too happy doing discard sections.
> 
> Bugs not withstanding, it does seem to work. We have this in the linker
> script already for a while:

OK.

There look to be quite a few other differences between our linker script
and x86's.  I'll go over them and see if we need to change.

James




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The attached should be a first cut at this.

I shifted around or vmlinux.lds.S with a view to minimising the diffs
between ours and the one in i386 (so we can spot changes more easily).

I also:

- Implemented cacheline_aligned sections (this may save a few bytes, and
it mirrors i386)
- Corrected a misnaming of the init_task section
- updated our bss clearing algorithm
- removed the duplicate ".initcall.init" section from the head.S files
(it was confusing the linker script and we end up with it being called
.initcall.init.1)
- done the correct thing with regard to discard and init/exit sections
(although we still don't do runtime discards).
- added a few other sections that i386 has (but we don't) just in case
they'll be useful one day (also helps reduce the diff between us and
i386)

James

===== arch/parisc/kernel/head.S 1.4 vs edited =====
--- 1.4/arch/parisc/kernel/head.S	Wed Dec 17 23:48:38 2003
+++ edited/arch/parisc/kernel/head.S	Fri Jan 16 16:19:18 2004
@@ -22,17 +22,6 @@
 
 	.level 1.1
 
-	.section	.initcall.init
-	.align		4
-	.export __initcall_start
-__initcall_start:
-	.export __initcall_end
-__initcall_end:
-	.export __setup_start
-__setup_start:
-	.export __setup_end
-__setup_end:
-
 	.data
 
 	.export boot_args
@@ -64,13 +53,13 @@
 
 	/* Clear BSS (shouldn't the boot loader do this?) */
 
-	.import _edata,data
-	.import _end,data
+	.import __bss_start,data
+	.import __bss_stop,data
 
-	ldil            L%PA(_edata),%r3
-	ldo             R%PA(_edata)(%r3),%r3
-	ldil            L%PA(_end),%r4
-	ldo             R%PA(_end)(%r4),%r4
+	ldil            L%PA(__bss_start),%r3
+	ldo             R%PA(__bss_start)(%r3),%r3
+	ldil            L%PA(__bss_stop),%r4
+	ldo             R%PA(__bss_stop)(%r4),%r4
 $bss_loop:
 	cmpb,<<,n       %r3,%r4,$bss_loop
 	stw,ma          %r0,4(%r3)
===== arch/parisc/kernel/head64.S 1.3 vs edited =====
--- 1.3/arch/parisc/kernel/head64.S	Wed Dec 17 23:48:38 2003
+++ edited/arch/parisc/kernel/head64.S	Fri Jan 16 16:17:15 2004
@@ -26,17 +26,6 @@
 
 	.level 2.0w
 
-	.section	.initcall.init
-	.align		4
-	.export __initcall_start
-__initcall_start:
-	.export __initcall_end
-__initcall_end:
-	.export __setup_start
-__setup_start:
-	.export __setup_end
-__setup_end:
-
 	.data
 
 	.export boot_args
@@ -64,13 +53,13 @@
 
 	/* Clear BSS (shouldn't the boot loader do this?) */
 
-	.import _edata,data
-	.import _end,data
+	.import __bss_start,data
+	.import __bss_stop,data
 
-	ldil            L%PA(_edata),%r3
-	ldo             R%PA(_edata)(%r3),%r3
-	ldil            L%PA(_end),%r4
-	ldo             R%PA(_end)(%r4),%r4
+	ldil            L%PA(__bss_start),%r3
+	ldo             R%PA(__bss_start)(%r3),%r3
+	ldil            L%PA(__bss_stop),%r4
+	ldo             R%PA(__bss_stop)(%r4),%r4
 $bss_loop:
 	cmpb,<<,n       %r3,%r4,$bss_loop
 	stb,ma          %r0,1(%r3)
===== arch/parisc/kernel/vmlinux.lds.S 1.15 vs edited =====
--- 1.15/arch/parisc/kernel/vmlinux.lds.S	Mon Sep  8 17:00:21 2003
+++ edited/arch/parisc/kernel/vmlinux.lds.S	Fri Jan 16 16:34:28 2004
@@ -1,5 +1,7 @@
 #include <linux/config.h>
 #include <asm-generic/vmlinux.lds.h>
+/* needed for the processor specific cache alignment size */	
+#include <asm/cache.h>
 	
 /* ld script to make hppa Linux kernel */
 #ifndef CONFIG_PARISC64
@@ -22,7 +24,7 @@
   . = 0x10100000;
 
   _text = .;			/* Text and read-only data */
-  .text BLOCK(16) : {
+  .text ALIGN(16) : {
 	*(.text*)
 	*(.PARISC.unwind)
 	*(.fixup)
@@ -39,11 +41,34 @@
 
   RODATA
 
-  .data BLOCK(8192) : {			/* Data without special */
+  /* writeable */
+  .data : {			/* Data */
 	data_start = .;
 	*(.data)
+	CONSTRUCTORS
 	}
 
+  . = ALIGN(4096);
+  /* nosave data is really only used for software suspend...it's here
+   * just in case we ever implement it */
+  __nosave_begin = .;
+  .data_nosave : { *(.data.nosave) }
+  . = ALIGN(4096);
+  __nosave_end = .;
+
+  . = ALIGN(L1_CACHE_BYTES);
+  .data.cacheline_aligned : { *(.data.cacheline_aligned) }
+
+  _edata = .;			/* End of data section */
+
+  . = ALIGN(16384); 		/* init_task */
+  .data.init_task : { *(.data.init_task) }
+
+  /* The interrupt stack is currently partially coded, but not yet
+   * implemented */
+  . = ALIGN(16384);	
+  init_istack : { *(init_istack) }
+
 #ifdef CONFIG_PARISC64
   . = ALIGN(16);               /* Linkage tables */
   .opd : { *(.opd) } PROVIDE (__gp = .); 
@@ -63,7 +88,7 @@
   __setup_start = .;
   .init.setup : { *(.init.setup) }
   __setup_end = .;
-  __start___param =.; 
+  __start___param = .;
   __param : { *(__param) }
   __stop___param = .;
   __initcall_start = .;
@@ -81,6 +106,19 @@
   .con_initcall.init : { *(.con_initcall.init) }
   __con_initcall_end = .;
   SECURITY_INIT
+  /* alternate instruction replacement.  This is a mechanism x86 uses
+   * to detect the CPU type and replace generic instruction sequences
+   * with CPU specific ones.  We don't currently do this in PA, but
+   * it seems like a good idea... */
+  . = ALIGN(4);
+  __alt_instructions = .;
+  .altinstructions : { *(.altinstructions) } 
+  __alt_instructions_end = .; 
+ .altinstr_replacement : { *(.altinstr_replacement) } 
+  /* .exit.text is discard at runtime, not link time, to deal with references
+     from .altinstructions and .eh_frame */
+  .exit.text : { *(.exit.text) }
+  .exit.data : { *(.exit.data) }
   . = ALIGN(4096);
   __initramfs_start = .;
   .init.ramfs : { *(.init.ramfs) }
@@ -91,17 +129,27 @@
   __per_cpu_end = .;
   . = ALIGN(4096);
   __init_end = .;
-
-  init_task BLOCK(16384) : { *(init_task) }  /* The initial task and kernel stack */
-
-  _edata = .;			/* End of data section */
-
-
-  .bss : { *(.bss) *(COMMON) }		/* BSS */
-
+  /* freed after init ends here */
+	
+  __bss_start = .;		/* BSS */
+  .bss : { *(.bss) *(COMMON) }
+  __bss_stop = .; 
 
   _end = . ;
 
+  /* Sections to be discarded */
+  /DISCARD/ : {
+	*(.exitcall.exit)
+#ifdef CONFIG_PARISC64
+	/* temporary hack until binutils is fixed to not emit these
+	 for static binaries */
+	*(.dynsym)
+	*(.dynstr)
+	*(.dynamic)
+	*(.hash)
+#endif
+	}
+
   /* Stabs debugging sections.  */
   .stab 0 : { *(.stab) }
   .stabstr 0 : { *(.stabstr) }
@@ -112,14 +160,4 @@
   .comment 0 : { *(.comment) }
   .note 0 : { *(.note) }	
 
-#ifdef CONFIG_PARISC64
-  /* temporary hack until binutils is fixed to not emit these
-     for static binaries */
-  /DISCARD/ : {
-    *(.dynsym)
-    *(.dynstr)
-    *(.dynamic)
-    *(.hash)
-  }
-#endif
 }
===== include/asm-parisc/cache.h 1.4 vs edited =====
--- 1.4/include/asm-parisc/cache.h	Sun Jan  5 05:22:53 2003
+++ edited/include/asm-parisc/cache.h	Fri Jan 16 13:13:23 2004
@@ -7,7 +7,6 @@
 
 #include <linux/config.h>
 
-#ifndef __ASSEMBLY__
 /*
  * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
  * 32-byte cachelines.  The default configuration is not for SMP anyway,
@@ -24,12 +23,12 @@
 #define L1_CACHE_SHIFT 5
 #endif
 
+#ifndef __ASSEMBLY__
+
 #define L1_CACHE_ALIGN(x)       (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
 
 #define SMP_CACHE_BYTES L1_CACHE_BYTES
 #define L1_CACHE_SHIFT_MAX 5	/* largest L1 which this arch supports */

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Could someone explain the following code in arch/parisc/mm/init.c?

The #warning doesn't make sense to me since it's inside !defined()
for the thing it's talking about.

thanks,
grant

...
#if !defined(CONFIG_STI_CONSOLE)
#warning STI console should explicitly allocate executable pages but does not
                                /*
                                 * Map the fault vector writable so we can
                                 * write the HPMC checksum.
                                 */
                                if (address >= ro_start && address < ro_end
                                                        && address != fv_addr
                                                        && address != gw_addr)
                                    pte = __mk_pte(address, PAGE_KERNEL_RO);
                                else
#endif
...



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Subject: Re: [parisc-linux] explicitly allocate executable pages?
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On Fri, 16 Jan 2004, Grant Grundler wrote:

> Could someone explain the following code in arch/parisc/mm/init.c?
>
> The #warning doesn't make sense to me since it's inside !defined()
> for the thing it's talking about.

Yes, it doesn't make sense to me either.
Running serial console only (without STIcon or STIfb) give me that
error message aswell, which is slightly confusing ;-)

Max


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On Fri, Jan 16, 2004 at 07:12:41PM -0500, James Bottomley wrote:
> The attached should be a first cut at this.
> 
> I shifted around or vmlinux.lds.S with a view to minimising the diffs
> between ours and the one in i386 (so we can spot changes more easily).

This boots and works on the A500 (ios).

2.6.1 kernel with this patch and "bridge_ctl" PCI patch from
Russell King are uploaded to ftp.p-l.o:kernels/a500/2.6.1-pa4.tgz
(No, it's not a -pa4 kernel but that's what it happens to use)

thanks!
grant


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how Vigra works. So you can better understand, what Vigra can do for you. If you are sensible about your health, reflect on what you can do for your seual health, to keep the chances that you will need Vigra as low as possible. hereto crazes axiomatic, attractor. 

 Inrease Seks Drive
 Bost Seual Performance
 Fuller & Harder Erecions
 Inrease Stamna & Endurance
 Quicker Rechages 
 
 http://www.raiseyourpower.com/index.php?pid=pharmaboss

headaches cored squeaky, gracefully. Eichmann alertness bulks, McFadden.

Thanks,
herded





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Subject: [parisc-linux] 32bit parisc kernel 2.6.1 and pcmcia
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rdi:~# uname -a
Linux rdi 2.6.1-pa7 #252 Sun Jan 18 20:09:08 CET 2004 parisc GNU/Linux

rdi:~# lsmod
Module                  Size  Used by
serial_cs               8392  1

dmesg: (This is my RDI Precisionbook B160L laptop)
Found devices:
1. Merlin+ 132 Dino PS/2 Port at 0xfff81000 [1] { 10, 0x0, 0x022, 0x00096 }
2. Phantom PseudoBC GSC+ Port at 0xffc00000 [8] { 7, 0x0, 0x504, 0x00000 }
3. Dino PCI Bridge at 0xfff80000 [8/0] { 13, 0x3, 0x680, 0x0000a },  additional addresses: 0xf0800000
4. Merlin+ 132 Dino RS-232 at 0xfff83000 [8/0/63] { 10, 0x0, 0x022, 0x0008c }
5. Merlin 160 Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x03d, 0x00081 },  additional addresses: 0xffd0c000 0xffc00000
6. Merlin 160 Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x03d, 0x00074 },  additional addresses: 0xffd01000 0xffd03000
7. Merlin 160 Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x03d, 0x0007b }
8. Merlin 160 Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x03d, 0x0008c }
9. Merlin 160 Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x03d, 0x00082 }
10. Merlin 160 Core LAN (802.3) at 0xffd07000 [8/16/6] { 10, 0x0, 0x03d, 0x0008a }
11. Merlin 160 Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x03d, 0x00084 }
12. Merlin 160 Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x03d, 0x00084 }
13. Merlin 160 Core PC Floppy at 0xffd0a000 [8/16/10] { 10, 0x0, 0x03d, 0x00083 }
14. Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 0x00085 },  additional addresses: 0xf0011000
15. Merlin L2 160 (9000/778/B160L) at 0xfffbe000 [62] { 0, 0x0, 0x502, 0x00004 }
16. Memory at 0xfffbf000 [63] { 1, 0x0, 0x067, 0x00009 }
CPU(s): 1 x PA7300LC (PCX-L2) at 160.000000 MHz
Lasi version 0 at 0xffd00000 found.
Dino parisc8:0 version 3.1 found at 0xfff80000
PCI: Bus 1, cardbus bridge: 0000:00:02.0
PCI: Bus 5, cardbus bridge: 0000:00:02.1


..now inserting my TDK ISDN/serial modem PCMCIA card....

kernel messages:
Dino fff80000: stuck interrupt 4
cs IO ports 0x0-0x7 allocated in parent Dino I/O Port

rdi:~# cat /proc/interrupts
           CPU00
 32:     252074      PARISC-CPU  timer
 33:      28596      PARISC-CPU  lasi
 34:         39      PARISC-CPU  Dino parisc8:0
 82:          0            Lasi  harmony
 86:       8089            Lasi  parisc8:16:5
 87:      20507            Lasi  i82596
 88:          0            Lasi  parport0
 98:        100  Dino parisc8:0  yenta
 99:          0  Dino parisc8:0  yenta

rdi:~# cardctl info
PRODID_1=""
PRODID_2=""
PRODID_3=""
PRODID_4=""
MANFID=0000,0000
FUNCID=255
PRODID_1="TDK"
PRODID_2="Global Pro ISDN V.90"
PRODID_3="C7500010"
PRODID_4=""
MANFID=0105,410a
FUNCID=2

Any ideas why I get the above "Dino fff80000: stuck interrupt 4" message ?
It seems further interrupts are not delivered to serial_cs....

Thanks,
Helge


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On Sun, 2004-01-18 at 14:59, Helge Deller wrote:
> Dino fff80000: stuck interrupt 4
> cs IO ports 0x0-0x7 allocated in parent Dino I/O Port

Erk, I assume this is a yenta socket with two PCMCIA slots?

I wasn't sure what the setting should be when I constructed the code in
the pa patch set (I only did it to get my PCI<->cardbus bridge working
with a single slot yenta PCI card).

What information does the Yenta driver print?

James




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On Sun, Jan 18, 2004 at 08:59:34PM +0100, Helge Deller wrote:
> Dino fff80000: stuck interrupt 4

The message means the IRQ was asserted and whatever handlers
are registered for that IRQ did not clear the IRQ level.

> Any ideas why I get the above "Dino fff80000: stuck interrupt 4" message ?
> It seems further interrupts are not delivered to serial_cs....

When the PCI IRQ line is asserted, dino will only generate one
interrupt to the CPU. CPU needs to read DINO_ILR and verify the IRQ
has been de-asserted after the interrupt handler has been called.
If PCI IRQ line is still asserted, we first assume several devices
share the line and call the interrupt handlers again (goto ilr_again).
If the PCI IRQ line is still asserted after testing ILR several times,
(well, 100 times to be exact - see ilr_loop) , then we assume a HW defect.
We driver writers don't like to admit something didn't register for
the proper interrupt. But that is likely the case here and explains
the message and only one interrupt.

I'd be curious if both sockets report the same IRQ (4) when
inserting the PCMCIA card.

BTW, since PARISC doesn't tolerate accessing invalid MMIO addresses 
like x86 does, it wouldn't surprise me if you see HPMC's during
PCMCIA device removal/eject operations. I suspect (but don't know
for sure) that card eject on x86 only works becuase x86
returns garbage (-1 or 0 or something) for reads to non-responding
address spaces.

hth,
grant


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Subject: Re: [parisc-linux] 32bit parisc kernel 2.6.1 and pcmcia
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On Monday 19 January 2004 06:59, Grant Grundler wrote:
> On Sun, Jan 18, 2004 at 08:59:34PM +0100, Helge Deller wrote:
> > Dino fff80000: stuck interrupt 4
> 
> The message means the IRQ was asserted and whatever handlers
> are registered for that IRQ did not clear the IRQ level.
> 
> > Any ideas why I get the above "Dino fff80000: stuck interrupt 4" message ?
> > It seems further interrupts are not delivered to serial_cs....
> 
> When the PCI IRQ line is asserted, dino will only generate one
> interrupt to the CPU. CPU needs to read DINO_ILR and verify the IRQ
> has been de-asserted after the interrupt handler has been called.
> If PCI IRQ line is still asserted, we first assume several devices
> share the line and call the interrupt handlers again (goto ilr_again).
> If the PCI IRQ line is still asserted after testing ILR several times,
> (well, 100 times to be exact - see ilr_loop) , then we assume a HW defect.

Yes, that's exactly what I see:
rdi:~# cat /proc/interrupts
           CPU00
 98:        100  Dino parisc8:0  yenta
 99:          0  Dino parisc8:0  yenta

> We driver writers don't like to admit something didn't register for
> the proper interrupt. But that is likely the case here and explains
> the message and only one interrupt.
> 
> I'd be curious if both sockets report the same IRQ (4) when
> inserting the PCMCIA card.

Yes, I get this "Dino fff80000: stuck interrupt 4"  when inserting the 
card in any of the two slots.

> BTW, since PARISC doesn't tolerate accessing invalid MMIO addresses 
> like x86 does, it wouldn't surprise me if you see HPMC's during
> PCMCIA device removal/eject operations. I suspect (but don't know
> for sure) that card eject on x86 only works becuase x86
> returns garbage (-1 or 0 or something) for reads to non-responding
> address spaces.

Happend not yet :-)
Let's see, when the driver tries to access the card....

Thanks for the explanation,
Helge


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On Monday 19 January 2004 00:44, James Bottomley wrote:
> On Sun, 2004-01-18 at 14:59, Helge Deller wrote:
> > Dino fff80000: stuck interrupt 4
> > cs IO ports 0x0-0x7 allocated in parent Dino I/O Port
> 
> Erk, I assume this is a yenta socket with two PCMCIA slots?

Yes.
 
> I wasn't sure what the setting should be when I constructed the code in
> the pa patch set (I only did it to get my PCI<->cardbus bridge working
> with a single slot yenta PCI card).
> 
> What information does the Yenta driver print?

dmesg gives:
Dino parisc8:0 version 3.1 found at 0xfff80000
PCI: Bus 1, cardbus bridge: 0000:00:02.0
PCI: Bus 5, cardbus bridge: 0000:00:02.1
SCSI subsystem initialized
Linux Kernel Card Services
  options:  [pci] [cardbus]
....
Yenta: CardBus bridge found at 0000:00:02.0 [0000:0000]
Yenta: ISA IRQ mask 0x0000, PCI irq 98
Socket status: 30000007
Yenta: CardBus bridge found at 0000:00:02.1 [0000:0000]
Yenta: ISA IRQ mask 0x0000, PCI irq 99
Socket status: 30000007

rdi:~# lspci -v
00:02.0 CardBus bridge: Cirrus Logic PD 6832 PCMCIA/CardBus Ctrlr (rev c1)
        Flags: bus master, medium devsel, latency 168, IRQ 98
        Memory at f0800000 (32-bit, non-prefetchable) [size=4K]
        Bus: primary=00, secondary=01, subordinate=04, sec-latency=176
        Memory window 0: f0900000-f09ff000
        Memory window 1: f0a00000-f0aff000
        I/O window 0: 00000400-000004ff
        I/O window 1: 00000800-000008ff
        16-bit legacy interface ports at 0001

00:02.1 CardBus bridge: Cirrus Logic PD 6832 PCMCIA/CardBus Ctrlr (rev c1)
        Flags: bus master, medium devsel, latency 168, IRQ 99
        Memory at f0801000 (32-bit, non-prefetchable) [size=4K]
        Bus: primary=00, secondary=05, subordinate=08, sec-latency=176
        Memory window 0: f0b00000-f0bff000
        Memory window 1: f0c00000-f0cff000
        I/O window 0: 00000c00-00000cff
        I/O window 1: 00001000-000010ff


Helge


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Grant,

A great news: your kernel (2.6.1-pa4) boot well on the N4000-55 :)
palx4000:/var/logs# dmesg | more
Linux version 2.6.1-pa4 (grundler@ios) (gcc version 3.0.4) #10 Sat Jan 17
00:04:07 PST 2004
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00005d30 00000491 00000000 00000002 27988e5d 100000f1 00000008 000000b2
000000b2
vers  00000301
CPUID vers 18 rev 11 (0x0000024b)
capabilities 0x1
model 9000/800/N4000-55
Total Memory: 2048 Mb
On node 0 totalpages: 524288
  DMA zone: 524288 pages, LIFO batch:16
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Building zonelist for node : 0
Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=3/vmlinux-2.6.1-pa4
PID hash table entries: 16 (order 4: 256 bytes)
[snip]

:))

>2.6.1 kernel with this patch and "bridge_ctl" PCI patch from
>Russell King are uploaded to ftp.p-l.o:kernels/a500/2.6.1-pa4.tgz

If i well find back your mail and references to this "bridge_ctl" patch otc
I don't reach to apply Russel's patch like this (against 2.6.1) to test on
my B2k (which you know don't work yet with pdc_cons). Can you make your "bridge_ctl"
patch available on ftp.p-l.o?

Thanks again for all,
    Joel

PS: an additional question regarding pdc_cons: in 2.4 there was a device
driver in devices/char/pdc_console.[ch] which allowing to use ttyB device.
But in 2.6 there isn't anymore such driver? any idea?

-------------------------------------------------------------------------
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le monde.
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On Sun, 2004-01-18 at 14:59, Helge Deller wrote:
> ..now inserting my TDK ISDN/serial modem PCMCIA card....

Sorry, I'm an idiot...these type of cards don't seem to work (they seem
to require ISA IRQ routing rules, which we can't provide).

Do you have a network or wireless card you could try instead?

James




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On Mon, 2004-01-19 at 04:07, Helge Deller wrote:
> Yenta: CardBus bridge found at 0000:00:02.0 [0000:0000]
> Yenta: ISA IRQ mask 0x0000, PCI irq 98
> Socket status: 30000007
> Yenta: CardBus bridge found at 0000:00:02.1 [0000:0000]
> Yenta: ISA IRQ mask 0x0000, PCI irq 99
> Socket status: 30000007

Hmm, that's not too good.  It should look something like

Yenta: CardBus bridge found at 0000:00:02.0 [0000:0000]
Yenta: setting irqmux to INTA,INTB
Yenta: Enabling burst memory read transactions
Yenta: Using CSCINT to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta: ISA IRQ mask 0x0000, PCI irq 98
Socket status: 30000410
cs MEM ports 0xf0804000-0xf0804fff allocated in parent Dino parisc8:0
LMMIO 0
 others)
cs IO ports 0x0-0x3f allocated in parent Dino I/O Port

The relevant points are the lines routing all the interrupts to PCI
(because we can't do ISA interrupts).

The fixes I put into yenta were only for the PCI1410 (well, 13xx) yenta
sockets, probably something extra has to be done to fix this one up.

James




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On Mon, Jan 19, 2004 at 12:16:40PM +0100, Joel Soete wrote:
> Grant,
> 
> A great news: your kernel (2.6.1-pa4) boot well on the N4000-55 :)

awesome! thanks for trying it.

> If i well find back your mail and references to this "bridge_ctl" patch otc
> I don't reach to apply Russel's patch like this (against 2.6.1) to test on
> my B2k (which you know don't work yet with pdc_cons). Can you make your "bridge_ctl"
> patch available on ftp.p-l.o?

yes - certainly ftp://ftp.parisc-linux.org/patches/diff-2.6.1-bridge_ctl

> PS: an additional question regarding pdc_cons: in 2.4 there was a device
> driver in devices/char/pdc_console.[ch] which allowing to use ttyB device.
> But in 2.6 there isn't anymore such driver? any idea?

sorry - I don't know.

grant


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Hi all,

I've been reading the list for a while, thought I should join. I'm not really 
a developer (well not on hppa) but I am happy to test stuff out :-)

First of all, I want to thank everyone whos worked on linux for HPPA.
I never really felt comfortable with hp-ux, and getting things working was 
always a pain. 

I own a model 9000/800/A180c. (512 mb ram / 18gb hd)

I was running previously the 2.4 series kernels, but had a lot of crashes 
during HD access. I have seen this mentioned before, and Its probably the 
same issue ? (In fact most of the crashes were during package 
unpacking/installation). Since moving to the 2.6 series this hasnt happened. 
Is this scsi issue now fixed, or have I been lucky ? (I did have a crash 
recently involving a debug file being written. Could it be this problem 
again ?)

I just built Linux hp9000 2.6.1-pa7 and on my system it seems to be working 
fine.

Also, does anyone here know why dovecot wouldnt work with libgnutls on hppa ? 
the dovecot maintainer has been trying to debug it on my machine (If my 
machine hadnt crashed). works fine with openssl. Has anybody had any other 
problems with libgnutls ?

Best Regards

Jools
-- 
Oxford Inspire
jools@oxfordinspire.co.uk
Tel: 01865 751879
Mob: 07966 577498



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On Monday 19 January 2004 15:35, James Bottomley wrote:
> On Sun, 2004-01-18 at 14:59, Helge Deller wrote:
> > ..now inserting my TDK ISDN/serial modem PCMCIA card....
> 
> Sorry, I'm an idiot...these type of cards don't seem to work (they seem
> to require ISA IRQ routing rules, which we can't provide).

Wouldn't it be possible to write a wrapper, which simulated the
ISA IRQs 0-15 and routes them to dino instead ?
Isn't this similiar like the hack we have for the EISA driver ?
And maybe we are lucky and no PA-machine has both, EISA and PCMCIA.
Would this be possible ?

> Do you have a network or wireless card you could try instead?

Sadly no, only one other ISDN card (AVM).

Helge


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Subject: Re: [parisc-linux] 32bit parisc kernel 2.6.1 and pcmcia
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On Mon, Jan 19, 2004 at 10:48:29PM +0100, Helge Deller wrote:
> > Sorry, I'm an idiot...these type of cards don't seem to work (they seem
> > to require ISA IRQ routing rules, which we can't provide).
> 
> Wouldn't it be possible to write a wrapper, which simulated the
> ISA IRQs 0-15 and routes them to dino instead ?

Yes

> Isn't this similiar like the hack we have for the EISA driver ?
> And maybe we are lucky and no PA-machine has both, EISA and PCMCIA.
> Would this be possible ?

Certainly. Need to write the "glue" that aliases the ESIA IRQs
(IRQ region 0) to which ever Dino IRQ region is handling them.
In other words, convert the PCI interrupts to ISA interrupts.
If you could fake the ISA driver into using PCI interrupts
(ie IRQs > 15), then one could register device driver interrupt
handler directly with Dino. Otherwise, an intermediate interrupt
handler will be needed that translates the Dino interrupt
into whatever IRQ the PCMCIA/ISA device thinks it's using.

I don't konw any of the details, that's just the overview.
In particular, how to determine which Dino is the right one.
On RDI PrecisionBook laptop, it might be simple and maybe just
make some assumptions based on that implementation.

grant


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On Mon, 2004-01-19 at 16:48, Helge Deller wrote:
> Wouldn't it be possible to write a wrapper, which simulated the
> ISA IRQs 0-15 and routes them to dino instead ?
> Isn't this similiar like the hack we have for the EISA driver ?
> And maybe we are lucky and no PA-machine has both, EISA and PCMCIA.
> Would this be possible ?

OK...Just to confirm what you're getting yourself into:

The yenta socket is a deep black art.  It also covers a multitude of
slightly different standards (from different manufacturers).  I learned
enough of the sourcery to say the required incantations for my
particular needs (which were a B180 with a PCI<->cardbus yenta socket
that came free with my zoom wireless card).

In order to get my setup to work, I also had to replumb virtually the
whole of the dino PCI system (I needed this because the B180 firmware
barfed at the PCMCIA socket and simply disabled it).

The point, I'm afraid, is that although I got it work for me, I'll bet
not much of the magic is transferrable, so you may also find yourself
ploughing through the yenta specs...

If this hasn't deterred you, then read on intrepid adventurer.

One of the things you seem to have from the error messages is IRQ
misrouting.  Could you boot up (or stop PCMCIA, remove all the modules,
including the core and restart) with a card in the socket?  The socket
status should tell us which one, and the IRQ line is given by lspci. 
Since the chip is both PCI device functions, it's not impossible to have
the IRQ routings messed up.

James



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On Sat, Dec 27, 2003 at 05:46:16PM +0000, Joel Soete wrote:
> -		panic(__FILE__ ": pcxl_alloc_range() Too many pages to 
> map.\n");
> +		panic("%s: pcxl_alloc_range() Too many pages to map.\n",
> +		      __FILE__);

thanks - I applied this patch (plus correction in pci.h)

grant


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On Mon, Jan 19, 2004 at 07:30:26PM +0000, Jools Smyth wrote:
> Hi all,
> 
> I've been reading the list for a while, thought I should join. I'm not really 
> a developer (well not on hppa) but I am happy to test stuff out :-)
> 
> First of all, I want to thank everyone whos worked on linux for HPPA.
> I never really felt comfortable with hp-ux, and getting things working was 
> always a pain. 

Thanks!
 
> I own a model 9000/800/A180c. (512 mb ram / 18gb hd)

Have you registered yourself in the hardware database?
http://hwdb.parisc-linux.org/

> I was running previously the 2.4 series kernels, but had a lot of crashes 
> during HD access. I have seen this mentioned before, and Its probably the 
> same issue ? (In fact most of the crashes were during package 
> unpacking/installation). Since moving to the 2.6 series this hasnt happened. 
> Is this scsi issue now fixed, or have I been lucky ? (I did have a crash 
> recently involving a debug file being written. Could it be this problem 
> again ?)

Need more info. What crashes? Can you get a dump? What compiler did you
use to build the kernel?
 
> I just built Linux hp9000 2.6.1-pa7 and on my system it seems to be working 
> fine.

Yay!
 
> Also, does anyone here know why dovecot wouldnt work with libgnutls on hppa ? 
> the dovecot maintainer has been trying to debug it on my machine (If my 
> machine hadnt crashed). works fine with openssl. Has anybody had any other 
> problems with libgnutls ?

Post to debian-hppa lists. I'll be happy to help if I can see a clear
description of the problem.

c.



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Hi Grant,

> yes - certainly ftp://ftp.parisc-linux.org/patches/diff-2.6.1-bridge_ctl

Ok I applied it against 2.6.1-pa8 (+ some already accepted patch of Matthew
and James related to sym2 driver ;) ).

Compiled with unstable debian gcc-3.3.3 and defconfig, it compiles and boots
well on the b2k ;) (and I am on going to recompile toolchain with it and
all seems to works fine ;) ).

Thanks a lot,
    Joel

ps: I also drive severall test:

Unfortunately, it doesn't help to boot with 64bit kernel on this system
(neither build with my gcc-hppa64_3.3.2 nor with unofficial-deb gcc-hppa64_3.0.4ds3-7.1_hppa.deb
which should the one to use iirc)

And with your config file it always do an hpmc with the 3 compilers I used
(debian gcc-3.3.3, gcc-hppa64 (from gcc-hppa64_3.0.4d
3-7.1_hppa.deb), my own gcc-hppa64_3.3.2), so I would have to find what breaks
for b2k even in 32bit kernel (that will take a long time).

The bad thing is that I don't reach to get any relevant iaoq address from
pim to start investigation :( (just know that it failed very early after
'-- search the FAQ and mailing list...')

hmm just noticed the following diff:
Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
palo_kernel=3/vmlinux-2.6.1-pa7'
Selected kernel: /vmlinux-2.6.1-pa7 from partition 3
ELF32 executable
Entry 001002f0 first 00100000 n 3
Segment 0 load 00100000 size 2586936 mediaptr 0x1000
Segment 1 load 00378000 size 368640 mediaptr 0x279000
Segment 2 load 003d4000 size 553093 mediaptr 0x2d3000
Branching to kernel entry point 0x001002f0.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[snip] normal boot


Command line for kernel: 'roo
=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102
palo_kernel=3/vmlinux-26-up64-gcc30'
Selected kernel: /vmlinux-26-up64-gcc30 from partition 3
ELF64 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 3529136 mediaptr 0x1000
Segment 1 load 00460000 size 237702 mediaptr 0x35f000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org


HPMC

So 3 segment loaded in 32bit and only 2 in 64bit, is it normal (i lost info
on the N4k boot :( ).
And also seems to "Branching to" a wrong entry point?



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From - Thu Nov 08 21:30:42 2018
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Jools Smyth <jools@oxfordinspire.co.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Stability / Kernel 2.6.1 / HD Freezes
Date: Tue, 20 Jan 2004 19:19:02 +0000
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To: Carlos O'Donell <carlos@baldric.uwo.ca>
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On Tuesday 20 January 2004 4:18 pm, Carlos O'Donell wrote:

> > I own a model 9000/800/A180c. (512 mb ram / 18gb hd)
>
> Have you registered yourself in the hardware database?
> http://hwdb.parisc-linux.org/

yup. Registered a while back. (under a180 not a180c though

> Need more info. What crashes? Can you get a dump? What compiler did you
> use to build the kernel?

if i get any problems on 2.6.x i will be sure to try and get some more 
information. to build the 2.6.1-pa7 kernel i used 

gcc version 3.3.3 20040110 (prerelease) (Debian)

> Post to debian-hppa lists. I'll be happy to help if I can see a clear
> description of the problem.

done. i put a link to the bugs page which contains all the information 
gathered so far (which isnt much)

Best Regards

Jools
-- 
Oxford Inspire
jools@oxfordinspire.co.uk
Tel: 01865 751879
Mob: 07966 577498



From - Thu Nov 08 21:30:42 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] B2k and CONFIG_PDC_CONSOLE pb: followup
Date: Wed, 21 Jan 2004 19:03:05 +0100
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Hi all,

On the my b2k when I add 'CONFIG_PDC_CONSOLE' the system hang just after
"Searching for devices..." leting the led CDROM continuously bright ???

With some printk, I reach to figure out that is at the pdc_suspend_usb()
point where the boot hang. I try to bypass this and so it boot well.

In fact the big difference with a kernel without CONFIG_PDC_CONSOLE is the
early call to pdc_console_init_force() which (before register the pdc_cons
do:
[snip]
        /* If the console is duplex then copy the COUT parameters to CIN.*/
        if (PAGE0->mem_cons.cl_class == CL_DUPLEX)
                memcpy(&PAGE0->mem_kbd, &PAGE0->mem_cons, sizeof(PAGE0->mem_cons));

        /* register the pdc console */
        register_console(&pdc_cons);
}

I also try to bypass this memcpy (and restore pdc_suspend_usb() call) and
it boot also well.

In sumary, on the b2k, this early memcpy() seems to break something in the
later pdc_suspend_usb() call. My problem is the pdc_suspend_usb()
which results finaly in a call to real32_call_asm(): actualy asm code in
which
it's difficult to insert printk to analyse the difference of behaviour ?)

I also already get a toc but didn't give me any relevant info on what happen
:(

Any idea to help me to get more details about this pb?

Thanks in advance,
    Joel

PS:
I added some printk to get some pdc addresses:
static void pdc_console_init_force(void)
{
        if (pdc_console_initialized)
                return;
        ++pdc_console_initialized;

        if (PAGE0->mem_cons.cl_class == CL_DUPLEX) {
                printk(KERN_INFO "pdc_console_init_force() would set a CL_DUP.\n");
                printk(KERN_INFO "PAGE0->mem_cons address: %p.\n", &PAGE0->mem_cons);
                printk(KERN_INFO "PAGE0->mem_kbd address: %p.\n", &PAGE0->mem_kbd);
                printk(KERN_INFO "PAGE0->mem_kbd size: %d.\n", sizeof(PAGE0->mem_cons));
        };
        /* If the console is duplex then copy the COUT parameters to CON.*/
/*
        if (PAGE0->mem_cons.cl_class == CL_DUPLEX)
                memcpy(&PAGE0->mem_kbd, &PAGE0->mem_cons, sizeof(PAGE0->mem_cons));
 */

        /* register the pdc console */
        register_console(&pdc_cons);
}

The 32-bit Kernel has started...
pdc_console_init_force() would set a CL_DUP.
PAGE0->mem_cons address: 100003a0.
PAGE0->mem_kbd address: 10000400.
PAGE0->mem_kbd size: 48.

But that couldn't help more for the moment :(



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From - Thu Nov 08 21:30:42 2018
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Subject: Re: [parisc-linux] B2k and CONFIG_PDC_CONSOLE pb: followup
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On Wed, Jan 21, 2004 at 07:03:05PM +0100, Joel Soete wrote:
> Hi all,
> 
> On the my b2k when I add 'CONFIG_PDC_CONSOLE' the system hang just after
> "Searching for devices..." leting the led CDROM continuously bright ???
> 
> With some printk, I reach to figure out that is at the pdc_suspend_usb()
> point where the boot hang. I try to bypass this and so it boot well.

yup - that's fixed in 2.6 slightly better.
Look for pdc_io_reset_devices() in drivers/parisc/sba_iommu.c.
You can backport and test that change to 2.4, I'd be happy to apply it.

The problem is if suckyio USB (or any device) is still doing DMA when
we reprogram the IOMMU, it will cause an HPMC. The reason is we
are fundementally changing how DMA works (non-coherent to coherent)
and PDC doesn't reprogram the suckyIo USB accordingly.
C3000 (and related systems) provides a special PDC call to disable USB.
"ccio" (eg C200) systems can have the same problem with LAN boot.

> I also try to bypass this memcpy (and restore pdc_suspend_usb() call) and
> it boot also well.

I think you've just prevented either PDC or Linux from using a PDC device.

> In sumary, on the b2k, this early memcpy() seems to break something in the
> later pdc_suspend_usb() call.

It's the other way around. pdc_suspend_usb() is breaking PDC_CONSOLE.
See email related to linux-2.6 c3000 serial console problems late last year.

AFAIK, the memcpy just enables the PDC to use a serial console.
But pdc_suspend_usb() apperently blows away the whole suckyio chip
and thus PDC can no longer use suckyio serial either. Hrmm..I thought
there was a IO_RESET_AND_CLEAR pdc call in that same chunk of code.

Anyway, Figuring out some additional info could help:
   (a) know which devices might have DMA enabled when the OS gets control
   (b) disable just the DMA
   (c) detect when PDC_CONSOLE wants to use a device whose DMA we've disabled


hth
grant


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> You can backport and test that change to 2.4, I'd be happy to apply it.

Ok Grant,

I on going to prepare some backport but need some more time ;)

btw I found the following typo in 2.6:
=========><=========
--- ./drivers/parisc/sba_iommu.c.orig	2004-01-22 16:55:26.080226072 +0100
+++ ./drivers/parisc/sba_iommu.c	2004-01-22 16:56:28.037807088 +0100
@@ -1058,7 +1058,7 @@
 			printk(KERN_DEBUG " %2d : %08lx/%05x %p/%05x\n",
 				nents,
 				(unsigned long) sg_dma_address(startsg), cnt,
-				sg_virt_address(startsg), startsg->length
+				sg_virt_addr(startsg), startsg->length
 		);
 #else
 		DBG_RUN_SG(" %d : %08lx/%05x %p/%05x\n",
==========><==========

hth,
    Joel


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>yup - that's fixed in 2.6 slightly better.
>Look for pdc_io_reset_devices() in drivers/parisc/sba_iommu.c.
>You can backport and test that change to 2.4, I'd be happy to apply it.

Well, here is attached 95% of work (see attached text file PDC_WRK.diff)
Please double check (may be still removing temporarely useless EXPORT_SYMBOL
and finalyse chg of 'direction' type to an enum?)

But it doesn't help it just move the pb when setup SBA :(
[snip]
5. Memory (1) at 0xfed10200 [49], versions 0x
d, 0x0, 0x9
CPU(s): 1 x PA8600 (PCX-W+) at 400.000000 MHz
SBA found Astro 2.1 at 0xfed00000

>The problem is if suckyio USB (or any device) is still doing DMA when
>we reprogram the IOMMU, it will cause an HPMC.

hmm I didn't get any hmpc but it more act as if it was sending something
to write to the cdrom (iether the cdrom was connected or not) or trying to
reset with wrong info?

> The reason is we are fundementally changing how DMA works (non-coherent
> to coherent) and PDC doesn't reprogram the suckyIo USB accordingly.
> C3000 (and related systems) provides a special PDC call to disable USB.
> "ccio" (eg C200) systems can have the same problem with LAN boot.
Even in 2.6 I got exactly the same pb with this ?*# b2k (and unforunately
I have only one b2k to test :(, just in case it was a pb on this machine?)

>> I also try to bypass this memcpy (and restore pdc_suspend_usb() call)
>> and it boot also well.

The same with patch.

>I think you've just prevented either PDC or Linux from using a PDC device.
Ok


>> In sumary, on the b2k, this early memcpy() seems to break something in
>> the later pdc_suspend_usb() call.

>It's the other way around. pdc_suspend_usb() is breaking PDC_CONSOLE.
>See email related to linux-2.6 c3000 serial console problems late
>last year.

Still have to read back again (sorry)

>AFAIK, the memcpy just enables the PDC to use a serial console.
>But pdc_suspend_usb() apperently blows away the whole suckyio chip
>and thus PDC can no longer use suckyio serial either. Hrmm..I t
ought
>there was a IO_RESET_AND_CLEAR pdc call in that same chunk of code.

Sorry I didn't find any IO_RESET_AND_CLEAR :(

Even though, I try to call pdc_io_reset(); just before pdc_io_reset_device();.
But it doesn't help ;)


>Anyway, Figuring out some additional info could help:
>   (a) know which devices migh have DMA enabled when the OS gets control

How may do this ?)

>   (b) disable just the DMA
>   (c) detect when PDC_CONSOLE wants to use a device whose DMA we've disabled

I would also like to be sure that the same info are used (and btw send to
pdc) by real32_call_asm and so just put some printk before this call real32_call_asm();
but it seems to create an infinite loop of print. Any idea?

Where should I found more info on all of this 'cmd' send to pdc?

Thanks in advance for additional attention,
    Joel




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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] kernel BUG at mm/shmem.c:585!
Date: Thu, 22 Jan 2004 14:38:49 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:20673

Just booted 2.6.1-pa9 (-pa8 + SBA change) and got:

kernel BUG at mm/shmem.c:585!
Kernel addresses on the stack:
 [<000000001016dc30>]  [<0000000010125cd8>]  [<0000000010111cd4>]  [<000000001010be4c>] 
 [<000000001010b094>]

those correspond to:
	0x1016dc30 unmap_page_range+a0
	0x10125cd8 sys32_rt_sigaction+90
	0x10111cd4 sys_mmap2+14
	0x1010be4c syscall_exit+0
	0x1010b094 intr_check_sig+0

This is on a500 (hppa64) with:
grundler <509>df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/md2               1539008   1257752    265624  83% /
/dev/md3               6683304   3688352   2927052  56% /home
/dev/md0              52507076   3455824  46384048   7% /usr/src
grundler <510>mount
/dev/md2 on / type ext3 (rw,errors=remount-ro)
proc on /proc type proc (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/md3 on /home type ext3 (rw,errors=remount-ro)
/dev/md0 on /usr/src type ext3 (rw,errors=remount-ro)


grant


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On Thu, Jan 22, 2004 at 02:38:49PM -0700, Grant Grundler wrote:
> Just booted 2.6.1-pa9 (-pa8 + SBA change) and got:
> 
> kernel BUG at mm/shmem.c:585!
> Kernel addresses on the stack:
>  [<000000001016dc30>]  [<0000000010125cd8>]  [<0000000010111cd4>]  [<000000001010be4c>] 
>  [<000000001010b094>]

I've associated this with logging out of ssh sessions.
ie when I exit a remote login, the above output pops up in the console.

grant


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From: Arnd Bergmann <arnd@arndb.de>
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Subject: [parisc-linux] missing barrier in _raw_spin_lock?
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We stumbled over a problem on s390 that can cause random memory corruption
under high load on SMP. It turned out to be a missing on :"memory" clobber
on the _raw_spin_lock primitive.

As far as I can see, the same problem is in the parisc spinlock definition
in linux-2.6.1, but none of the other architectures.

The code below demonstrates the problem. With the broken spinlock, the
compiler does not emit code for the second "if" or for the assignment.
Similar code can be found in mempool_free().

	Arnd <><

----
#include <linux/spinlock.h>

static int x;
static spinlock_t lock;

void test(void)
{
        if (x) {
                spin_lock(&lock);
                if (!x)
                        x = 0x1234;
                spin_unlock(&lock);
        }
}



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> > Post to debian-hppa lists. I'll be happy to help if I can see a clear
> > description of the problem.
> 
> done. i put a link to the bugs page which contains all the information 
> gathered so far (which isnt much)

Bug number please, or URL?

c.


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Subject: Re: [parisc-linux] B2k and CONFIG_PDC_CONSOLE pb: followup
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Hi Grant,

Just need more advise (sorry)

>It's the other way around. pdc_suspend_usb() is breaking PDC_CONSOLE.
>See email related to linux-2.6 c3000 serial console problems late last year.

Ok I find relevant info and pdf docs (in fact I missed 'data_formats.pdf'
to make the bridge :( )

>AFAIK, the memcpy just enables the PDC to use a serial console.

Hmm we didn't 'relocate' PDC (as see hpux makes), so all those information
are fill in by PDC prgm itself? So if Console is flagged CL_DUP, I don't
see why do we have to make this memcpy?

>But pdc_suspend_usb() apperently blows away the whole suckyio chip
>and thus PDC can no longer use suckyio serial either. Hrmm..I thought
>there was a IO_RESET_AND_CLEAR pdc call in that same chunk of code.

>Anyway, Figuring out some additional info could help:
>   (a) know which devices migh have DMA enabled when the OS gets control

May be the console itself (by continuously reading the kdb eg)?

>   (b) disable just the DMA
where should I look to disable so console dma?
[if I well understand spinlock_... and unlock function are not foreseen in
that case but more to avoid 2 different cpu to access a same ressource.
May be better something similar to [acquire,release]_console_sem?]

>   (c) detect when PDC_CONSOLE wants to use a device whose DMA we've disabled

Thanks in advance for additional help,
    Joel


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On Fri, Jan 23, 2004 at 08:52:10AM -0500, Carlos O'Donell wrote:
> > > Post to debian-hppa lists. I'll be happy to help if I can see a clear
> > > description of the problem.
> > 
> > done. i put a link to the bugs page which contains all the information 
> > gathered so far (which isnt much)
> 
> Bug number please, or URL?

I should learn to read *everything* before posting :)

c.


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On Thu, Jan 22, 2004 at 07:09:07PM -0700, Grant Grundler wrote:
> On Thu, Jan 22, 2004 at 02:38:49PM -0700, Grant Grundler wrote:
> > Just booted 2.6.1-pa9 (-pa8 + SBA change) and got:
> > 
> > kernel BUG at mm/shmem.c:585!
> > Kernel addresses on the stack:
> 
> I've associated this with logging out of ssh sessions.
> ie when I exit a remote login, the above output pops up in the console.

I've been looking at this bug for a while now, it crops up when I cross
compile a 64-bit kernel with a newer gcc. Randolph was saying that cross
compilng with 3.0.4 doesn't generate this problem. If I remember right
it's trying to free a shared memory inode that is still being used, and
that scenario shouldn't exist. Why this happens is a mystery. 

I see this twice, once for ssh, and something else generates the error.
It appears non-fatal, and I want to blame the compiler :)

http://lists.parisc-linux.org/pipermail/parisc-linux/2003-December/021783.html

c.



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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] kernel BUG at mm/shmem.c:585!
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> It appears non-fatal, and I want to blame the compiler :)

I agree but the proof is in the pudding ;-)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


From - Thu Nov 08 21:30:43 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] B2k and CONFIG_PDC_CONSOLE pb: followup
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On Fri, Jan 23, 2004 at 07:54:44PM +0100, Joel Soete wrote:
> >AFAIK, the memcpy just enables the PDC to use a serial console.
> 
> Hmm we didn't 'relocate' PDC (as see hpux makes), so all those information
> are fill in by PDC prgm itself? So if Console is flagged CL_DUP, I don't
> see why do we have to make this memcpy?

I don't pretend to understand how PDC uses page zero.
Any takers on explaining what the memcopy does?

> >Anyway, Figuring out some additional info could help:
> >   (a) know which devices migh have DMA enabled when the OS gets control
> 
> May be the console itself (by continuously reading the kdb eg)?


> 
> >   (b) disable just the DMA
> where should I look to disable so console dma?

In the B2k's case the USB keyboard is the console input device
and USB does DMA. Right?
That means the console can not be active when we reprogram
the IOMMU.

If the console is the serial port, then we should be able to disable
just the USB device and not impact the Serial ports.

grant


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When I try to install certain X-window managers under Debian 3.0 I get
"xxx depends on menu (>> 1.5)... menu is not available" How would I fix
this?

=20


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install
certain X-window managers under Debian 3.0 I get &#8220;xxx depends on =
menu
(&gt;&gt; 1.5)&#8230; menu is not available&#8221; How would I fix =
this?</span></font></p>

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From - Thu Nov 08 21:30:44 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] menu not available
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Xref: news.gmane.org gmane.linux.ports.parisc:20683

On Fri, Jan 23, 2004 at 04:47:11PM -0500, Peralta, Joseph A wrote:
> When I try to install certain X-window managers under Debian 3.0 I get
> "xxx depends on menu (>> 1.5)... menu is not available" How would I fix
> this?

Dunno...menu is available for "sarge" (aka testing) and that
works for me. Sounds like someone wants to backport to Woody.

grundler <559>dpkg -l menu
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  menu           2.1.9-4        Provides update-menus functions for some app

grant


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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] B2k and CONFIG_PDC_CONSOLE pb: followup
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Grant,



Grant Grundler wrote:
> On Fri, Jan 23, 2004 at 07:54:44PM +0100, Joel Soete wrote:
> 
>>>AFAIK, the memcpy just enables the PDC to use a serial console.
>>
>>Hmm we didn't 'relocate' PDC (as see hpux makes), so all those information
>>are fill in by PDC prgm itself? So if Console is flagged CL_DUP, I don't
>>see why do we have to make this memcpy?
> 
> 
> I don't pretend to understand how PDC uses page zero.
> Any takers on explaining what the memcopy does?
> 
> 
>>>Anyway, Figuring out some additional info could help:
>>>  (a) know which devices migh have DMA enabled when the OS gets control
>>
>>May be the console itself (by continuously reading the kdb eg)?
> 
> 
> 
>>>  (b) disable just the DMA
>>
>>where should I look to disable so console dma?
> 
> 
> In the B2k's case the USB keyboard is the console input device
> and USB does DMA. Right?

ok (if a usb kbd is connected ;) )

> That means the console can not be active when we reprogram
> the IOMMU.
> 
> If the console is the serial port, then we should be able to disable
> just the USB device and not impact the Serial ports.

hmm afaik usb ports on a b2k (and I presume for the same family) are just there
(iirc the user guide and spec) to be used only for usb kbd and mouse
and so if no usb kbd was found by pdc we could just disable usb at all?

Thanks again for info and patience,
	Joel



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Arnd Bergmann wrote:
> We stumbled over a problem on s390 that can cause random memory corruption
> under high load on SMP. It turned out to be a missing on :"memory" clobber
> on the _raw_spin_lock primitive.
> 
> As far as I can see, the same problem is in the parisc spinlock definition
> in linux-2.6.1, but none of the other architectures.
> 
> The code below demonstrates the problem. With the broken spinlock, the
> compiler does not emit code for the second "if" or for the assignment.
> Similar code can be found in mempool_free().
> 
> 	Arnd <><
> 
> ----
> #include <linux/spinlock.h>
> 
hmm yet another stupid question of mine: what would we have to use _linux_/spinlock.h or _asm_/spinlock.h

Thanks in advance,
	Joel


> static int x;
> static spinlock_t lock;
> 
> void test(void)
> {
>         if (x) {
>                 spin_lock(&lock);
>                 if (!x)
>                         x = 0x1234;
>                 spin_unlock(&lock);
>         }
> }
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


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On Sat, Jan 24, 2004 at 11:12:02AM +0000, Joel Soete wrote:
> >If the console is the serial port, then we should be able to disable
> >just the USB device and not impact the Serial ports.
> 
> hmm afaik usb ports on a b2k (and I presume for the same family) are just 
> there (iirc the user guide and spec) to be used only for usb kbd and mouse

I think that's all PDC and HPUX know how to talk to.
That's all HP will support or warrant.

But it's a USB port and if other devices work, use it.

> and so if no usb kbd was found by pdc we could just disable usb at all?

The problem is USB is doing DMA and was enabled by PDC.
I don't care what's connected (Keyboard vs digital camera).

grant


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Joel Soete wrote:
> 
> 
> Arnd Bergmann wrote:
> 
>> We stumbled over a problem on s390 that can cause random memory 
>> corruption
>> under high load on SMP. It turned out to be a missing on :"memory" 
>> clobber
>> on the _raw_spin_lock primitive.
>>
>> As far as I can see, the same problem is in the parisc spinlock 
>> definition
>> in linux-2.6.1, but none of the other architectures.
>>
>> The code below demonstrates the problem. With the broken spinlock, the
>> compiler does not emit code for the second "if" or for the assignment.
>> Similar code can be found in mempool_free().
>>
>>     Arnd <><
>>
>> ----
>> #include <linux/spinlock.h>
>>
> hmm yet another stupid question of mine: what would we have to use 
> _linux_/spinlock.h or _asm_/spinlock.h
Oops appologies: the answer is in linux/spinlock (i was just confused because for my c110 I didn't configure SMP)

Thanks for your understand,
	Joel

> 
> Thanks in advance,
>     Joel
> 
> 
>> static int x;
>> static spinlock_t lock;
>>
>> void test(void)
>> {
>>         if (x) {
>>                 spin_lock(&lock);
>>                 if (!x)
>>                         x = 0x1234;
>>                 spin_unlock(&lock);
>>         }
>> }
>>
>> _______________________________________________
>> parisc-linux mailing list
>> parisc-linux@lists.parisc-linux.org
>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
> 


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> >> static int x;
> >> static spinlock_t lock;
> >>
> >> void test(void)
> >> {
> >>         if (x) {
> >>                 spin_lock(&lock);
> >>                 if (!x)
> >>                         x = 0x1234;
> >>                 spin_unlock(&lock);
> >>         }
> >> }

The test is wrong.  Static variables are initialized to 0.  So, the first
`if' is never true and the code will optimize to a return instruction.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Sat, Jan 24, 2004 at 04:15:44PM -0500, John David Anglin wrote:
> > >> static int x;
> > >> static spinlock_t lock;
...
> The test is wrong.  Static variables are initialized to 0.  So, the first
> `if' is never true and the code will optimize to a return instruction.

In any case, that should be
	static spinlock_t lock = SPIN_LOCK_UNLOCKED;

(On parisc UNLOCKED == 1, not 0 like the rest of the world)

Is gcc really that smart that it knows static variables are 0?
The would be amazing to me because I thought linker magic could
twiddle stuff like this. Anyway, gcc doesn't seem to be that smart:

# diff t1.c t2.c
3c3
< static int x=1;
---
> static int x;

# diff t1.S t2.S
3,7d2
<       .align 4
<       .type   x, @object
<       .size   x, 4
< x:
<       .word   1
54a50,51
>       .local  x
>       .comm   x,4,4


BTW, the .S diff is the same for both -O2 and -O3 output.
Maybe other compile options would further optimize.


Arndt,
In any case, thanks for raising the issue.
I hadn't looked at the asm code in a long time.

The key bit is __ldcw() in asm/system.h:

/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
#define __ldcw(a) ({ \
        unsigned __ret; \
        __asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a)); \
        __ret; \
})

I suspect (but am not certain) Arnd is right.
We indicate __ret is getting clobbered (=r) and that 'a' is an input ("r").
I don't see anything indicating we changed the memory location.

But I don't see the problem.  The t2.S output looks correct.
The "if (!x) {...}" code is generated:

...
.L18:
        ldw RR'x-$global$(%r21),%r20
        comib,<> 0,%r20,.L13
        ldi 4660,%r25
        stw %r25,RR'x-$global$(%r21)
...

BTW, PARISC still doesn't support CONFIG_SMP (cpu init sequence)
on 2.6 kernels. SMP works (mostly) on 2.4 kernels.

Here's how I generated t1.S output and it's not completely trivial.
One has to:
	o cp /usr/src/linux-2.6/include/linux/autoconf.h ./linux/
	o vi linux/autoconf.hl
		- change "#undef CONFIG_SMP" to #define
		- add "#define CONFIG_NR_CPUS 4"
	o gcc -O3 -I. -I/usr/src/linux-2.6/include/ -S t1.c -o t1.S

I've put the whole mess on
	http://iou.parisc-linux.org/~grundler/asm-memory/


BTW, I notice several other asm() in linux/asm-parisc/system.h which
specify ': "memory"' but the instructions used are register only.
Notably the ssm/rsm/mtsm insn's.
Any comment if those asm() *do NOT* need ': "memory"'?

thanks,
grant


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>  Anyway, gcc doesn't seem to be that smart:

Right, it not that smart but it does optimize certain memory references.

> The key bit is __ldcw() in asm/system.h:
> 
> /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
> #define __ldcw(a) ({ \
>         unsigned __ret; \
>         __asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a)); \
>         __ret; \
> })

In some version of pthreads, we used

#define __ldcw(a) ({ \
  unsigned int __ret;                                                   \
  __asm__ __volatile__("ldcw 0(%2),%0"                                  \
		      : "=r" (__ret), "=m" (*(a)) : "r" (a));           \
  __ret;                                                                \
})

This tells gcc explicitly what memory is affected by the asm.  However,
it doesn't provide a memory barrier.  I think this isn't necessary in
pthreads because it provides a separate macro define for this.

This is what the gcc documentation says about asms:

If your assembler instructions access memory in an unpredictable
fashion, add `memory' to the list of clobbered registers.  This
will cause GCC to not keep memory values cached in registers across the
assembler instruction and not optimize stores or loads to that memory.
You will also want to add the `volatile' keyword if the memory
affected is not listed in the inputs or outputs of the `asm', as
the `memory' clobber does not count as a side-effect of the
`asm'.  If you know how large the accessed memory is, you can add
it as input or output but if this is not known, you should add
`memory'.  As an example, if you access ten bytes of a string, you
can use a memory input like:

> I suspect (but am not certain) Arnd is right.
> We indicate __ret is getting clobbered (=r) and that 'a' is an input ("r").
> I don't see anything indicating we changed the memory location.

It's not really the memory accessed by the ldcw that's at issue here.
If `x' is a location that can change between the first test and a successful
lock (SMP), then you want a memory barrier in __ldcw so that the memory
value of x is not cached in a register across the lock.

The following revision to the test program demonstrates the problem
of a memory value carried into the lock.

#include <linux/spinlock.h>

static spinlock_t lock = SPIN_LOCK_UNLOCKED;

void test(int *x)
{
  if (*x)
    {
      spin_lock(&lock);
      if (!*x)
	*x = 0x1234;
      spin_unlock(&lock);
    }
}

We need the "memory" clobber in SMP.  I think the macro should be:

#define __ldcw(a) ({ \
  unsigned int __ret;							 \
  __asm__ __volatile__("ldcw 0(%2),%0"					 \
		      : "=r" (__ret), "=m" (*(a)) : "r" (a) : "memory"); \
  __ret;								 \
})

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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John David Anglin <dave@hiauly1.hia.nrc.ca> schrieb am 25.01.2004,
07:13:10:
> >  Anyway, gcc doesn't seem to be that smart:
> 
> Right, it not that smart but it does optimize certain memory references.
> 
> > The key bit is __ldcw() in asm/system.h:
> > 
> > /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
> > #define __ldcw(a) ({ \
> >         unsigned __ret; \
> >         __asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a)); \
> >         __ret; \
> > })
> 
> In some version of pthreads, we used
> 
> #define __ldcw(a) ({ \
>   unsigned int __ret;                                                   \
>   __asm__ __volatile__("ldcw 0(%2),%0"                                  \
> 		      : "=r" (__ret), "=m" (*(a)) : "r" (a));           \
>   __ret;                                                                \
> })
> 
> This tells gcc explicitly what memory is affected by the asm.  However,
> it doesn't provide a memory barrier.  I think this isn't necessary in
> pthreads because it provides a separate macro define for this.

I suppose the memory operand specification is required here. Newer 
compilers (especially gcc-3.4) can optimize away local variables if you 
only access the address but not the contents. I think even your 
pthreads version is not really correct, because it specifies (*(a)) as
output only instead of inout.

> #include 
> 
> static spinlock_t lock = SPIN_LOCK_UNLOCKED;
> 
> void test(int *x)
> {
>   if (*x)
>     {
>       spin_lock(&lock);
>       if (!*x)
> 	*x = 0x1234;
>       spin_unlock(&lock);
>     }
> }
> 
> We need the "memory" clobber in SMP.  I think the macro should be:
> 
> #define __ldcw(a) ({ \
>   unsigned int __ret;							 \
>   __asm__ __volatile__("ldcw 0(%2),%0"					 \
> 		      : "=r" (__ret), "=m" (*(a)) : "r" (a) : "memory"); \
>   __ret;								 \
> })

No, putting the barrier into __ldcw is wrong because it would impact all
other uses of __ldcw that don't need the barrier. AFAICS, the 
_raw_spin_lock needs to be changed  to the below. 

#define _raw_spin_lock(x) do { \
        while (__ldcw (&(x)->lock) == 0) \
                while (((x)->lock) == 0) ; \
        barrier(); } while (0)

Since the assembly output of the test program with gcc-3.3 looks good,
this probably did not do any harm so far.

     Arnd <><


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On Fri, Jan 23, 2004 at 03:11:49PM -0700, Grant Grundler wrote:
> On Fri, Jan 23, 2004 at 04:47:11PM -0500, Peralta, Joseph A wrote:
> > When I try to install certain X-window managers under Debian 3.0 I get
> > "xxx depends on menu (>> 1.5)... menu is not available" How would I fix
> > this?
> 
> Dunno...menu is available for "sarge" (aka testing) and that
> works for me. Sounds like someone wants to backport to Woody.

menu is not available for woody because it's written in a language which
bears a passing resemblance to C++.  someone rewrote it in C++ for sarge.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Subject: Re: Re: [parisc-linux] missing barrier in _raw_spin_lock?
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> > #define __ldcw(a) ({ \
> >   unsigned int __ret;                                                   \
> >   __asm__ __volatile__("ldcw 0(%2),%0"                                  \
> > 		      : "=r" (__ret), "=m" (*(a)) : "r" (a));           \
> >   __ret;                                                                \
> > })

> I suppose the memory operand specification is required here. Newer 
> compilers (especially gcc-3.4) can optimize away local variables if you 
> only access the address but not the contents. I think even your 
> pthreads version is not really correct, because it specifies (*(a)) as
> output only instead of inout.

I agree.

> No, putting the barrier into __ldcw is wrong because it would impact all
> other uses of __ldcw that don't need the barrier. AFAICS, the 

The only other uses for __ldcw are the SPIN_LOCK macro in atomic.h
and the _raw_spin_trylock in spinlock.h (i.e., it is only used
acquire locks).  If all these need barriers, then it might as well
be in __ldcw.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Fri, Jan 23, 2004 at 02:40:27PM -0500, John David Anglin wrote:
> > It appears non-fatal, and I want to blame the compiler :)
> 
> I agree but the proof is in the pudding ;-)

I told Grant, that at my current schedule, it would be 2006 
before I fixed this problem :)

It looks like a reordering issue, perhaps taking a look at the
respective .o objects produced by the two compilers might reveal the
issue. I think that's the way we did it when the tty layer broke and we
had to have that console.o compiled with 3.0.4 by hand? I think Randolph
and Grant worked on that together. I might have the wrong names, but
we've successfully debugged a problem like this before using similar
methods.

c.



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> On Fri, Jan 23, 2004 at 02:40:27PM -0500, John David Anglin wrote:
> > > It appears non-fatal, and I want to blame the compiler :)
> > 
> > I agree but the proof is in the pudding ;-)
> 
> I told Grant, that at my current schedule, it would be 2006 
> before I fixed this problem :)

My schedule isn't much better.  I'm off to Tokyo at the end of the week
to waive the Canadian flag at the ISO LRG meetin next week.  After that,
my brother's company would like me to work on more firmware for a new
project.

Is this on a SMP kernel (i.e., could this be a locking issue)?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


From - Thu Nov 08 21:30:45 2018
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From: "Reinhold Flecke CCF" <reinhold.flecke@ccf-consulting.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] installation failed on C240 (fx4) workstation
Date: Mon, 26 Jan 2004 11:54:13 +0100
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I downloaded the "debian-30r2-hppa-binary-1.iso" and burned it to CD. 
If I start the installation on my C240 (fx4) workstation  with the command:
bo sescsi.2.0

it seems everything ok, until I get the message:
...If this is the last message you see, you may need to switch your console.
  This is a common sympton sarch the FAQ and mailing list at
parisc-linux.org

After this nothing happens anymore.
I searched the FAQ and mailing list but I could not find a solution.
Anyone who can help?

Thanks in advance.

Best Regards
Reinhold Flecke


Reinhold Flecke CCF
Fon:	+49 (0)5292 930601 (Office)
	+49 (0)700 93000093 (PR)
eMail:	<mailto:Reinhold.Flecke@ccf-consulting.de>


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From: "Reinhold Flecke CCF" <reinhold.flecke@ccf-consulting.de>
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Subject: [parisc-linux] help installation failed on C240 (fx4) workstation
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I downloaded the "debian-30r2-hppa-binary-1.iso" and burned it to CD. 
If I start the installation on my C240 (fx4) workstation  with the command:
bo sescsi.2.0

it seems everything ok, until I get the message:
...If this is the last message you see, you may need to switch your console.
  This is a common sympton sarch the FAQ and mailing list at
parisc-linux.org

After this nothing happens anymore.
I searched the FAQ and mailing list but I could not find a solution.
Anyone who can help?

Thanks in advance.


Best Regards
Reinhold Flecke


Reinhold Flecke CCF
Auf dem Anger 18
33165 Lichtenau-Husen
Fon:	+49 (0)5292 930601 (Office)
	+49 (0)700 93000093 (PR)
eMail:	<mailto:Reinhold.Flecke@ccf-consulting.de>


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] kernel BUG at mm/shmem.c:585!
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On Sun, Jan 25, 2004 at 09:35:07PM -0500, John David Anglin wrote:
> Is this on a SMP kernel (i.e., could this be a locking issue)?

no. I don't build or run SMP kernels on anything at the moment.

thanks,
grant


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] help installation failed on C240 (fx4) workstation
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On Mon, Jan 26, 2004 at 12:13:22PM +0100, Reinhold Flecke CCF wrote:
> I downloaded the "debian-30r2-hppa-binary-1.iso" and burned it to CD. 
> If I start the installation on my C240 (fx4) workstation  with the command:
> bo sescsi.2.0

FX-4 graphics is not supported.
Either use serial console or replace the FX4 with PCI FX-E.

sorry,
grant


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] A fix for B2k and CONFIG_PDC_CONSOLE pb
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Hi Grant, Christoph,

I find a fix for this pb. I tested successfully (I reach to login with a
ttyB0 after replacing ttyS0 in inittab and telinit q :) ) on a 32bit 2.4
kernel on my b2k and a 64bit (up) [also 2.4] kernel on my N4k.

Here is its main part:
diff -NaurX dontdiff linux-2.4.24-pa0.orig/arch/parisc/kernel/firmware.c
linux-2.4.24-pa0/arch/parisc/kernel/firmware.c
--- linux-2.4.24-pa0.orig/arch/parisc/kernel/firmware.c	2003-10-02 07:30:55.000000000
+0200
+++ linux-2.4.24-pa0/arch/parisc/kernel/firmware.c	2004-01-26 16:48:23.000000000
+0100
@@ -871,15 +937,21 @@
 	int status;
 
 	/* Bail if no console input device. */
-	if (!PAGE0->mem_kbd.iodc_io)
+	if ((PAGE0->mem_cons.cl_class != CL_DUPLEX) && !PAGE0->mem_kbd.iodc_io)
 		return 0;
 	
 	/* wait for a keyboard (rs232)-input */
 	spin_lock_irqsave(&pdc_lock, flags);
-	real32_call(PAGE0->mem_kbd.iodc_io,
-		    (unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN,
-		    PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers), 
-		    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
+	if (PAGE0->mem_cons.cl_class == CL_DUPLEX)
+		real32_call(PAGE0->mem_cons.iodc_io,
+			    (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_CIN,
+			    PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers), 
+			    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
+	else
+		real32_call(PAGE0->mem_kbd.iodc_io,
+			    (unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN,
+			    PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers), 
+			    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
 
 	ch = *iodc_dbuf;
 	status = *iodc_retbuf;
diff -NaurX dontdiff linux-2.4.24-pa0.orig/arch/parisc/kernel/pdc_cons.c
linux-2.4.24-pa0/arch/parisc/kernel/pdc_cons.c
--- linux-2.4.24-pa0.orig/arch/parisc/kernel/pdc_cons.c	2004-01-19 07:25:46.000000000
+0100
+++ linux-2.4.24-pa0/arch/parisc/kernel/pdc_cons.c	2004-01-26 16:53:32.000000000
+0100
@@ -113,10 +112,6 @@
 		return;
 	++pdc_console_initialized;
 	
-	/* If the console is duplex then copy the COUT parameters to CIN. */
-	if (PAGE0->mem_cons.cl_class == CL_DUPLEX)
-		memcpy(&PAGE0->mem_kbd, &PAGE0->mem_cons, sizeof(PAGE0->mem_cons));
-
 	/* register the pdc console */
 	register_console(&pdc_cons);
 }
==========><==========

Can somebody else could also test it on some other platform to be sure I
don't broken other stuff?

Thanks in advance,
    Joel

PS: Grant I join the text file of the final backport of 2.6 work included
this patch. Thanks in advance for your attention

-------------------------------------------------------------------------
Tiscali ADSL: 12 mois  29,50 /mois! L'Internet rapide, c'est pour tout
le monde.
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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] A fix for B2k and CONFIG_PDC_CONSOLE pb
Date: Mon, 26 Jan 2004 17:25:05 +0000
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On Mon, Jan 26, 2004 at 06:00:53PM +0100, Joel Soete wrote:
>  
>  	/* Bail if no console input device. */
> -	if (!PAGE0->mem_kbd.iodc_io)
> +	if ((PAGE0->mem_cons.cl_class != CL_DUPLEX) && !PAGE0->mem_kbd.iodc_io)
>  		return 0;
>  	
>  	/* wait for a keyboard (rs232)-input */
>  	spin_lock_irqsave(&pdc_lock, flags);
> -	real32_call(PAGE0->mem_kbd.iodc_io,
> -		    (unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN,
> -		    PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers), 
> -		    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
> +	if (PAGE0->mem_cons.cl_class == CL_DUPLEX)

This doesn't make sense.  PAGE0->mem_cons.cl_class has to be CL_DUPLEX
otherwise the test above would have failed.  Do you perhaps mean that &&
above to be an || ?  If so, this would all read better as ...

	/* wait for a keyboard (rs232)-input */
	spin_lock_irqsave(&pdc_lock, flags);
	if (PAGE0->mem_cons.cl_class == CL_DUPLEX) {

		real32_call(PAGE0->mem_cons.iodc_io,
			    (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_CIN,
			    PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers), 
			    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
	} else if (PAGE0->mem_kbd.iodc_io) {
		real32_call(PAGE0->mem_kbd.iodc_io,
			    (unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN,
			    PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers), 
			    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
	} else {
		spin_unlock_irqrestore(&pdc_lock, flags);
		return 0;
	}

Slightly ugly to have two unlocks for the same lock, but that's better
than duplicating the test.  I haven't looked at the code, maybe we could
use a goto instead.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


From - Thu Nov 08 21:30:45 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] A fix for B2k and CONFIG_PDC_CONSOLE pb
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> +	if ((PAGE0->mem_cons.cl_class != CL_DUPLEX) && !PAGE0->mem_kbd.iodc_io)
>  		return 0;
Right Matthew this case is nearly impossible (may be excepted if disconected
the usb kbd during the boot), it would means that my pdc_console is not a
serial one (ie graphic([01])) but no usb kdb found, so in that case pdc would
switch console automaticaly to serial.

I would just still check the case when I have an usb kbd (I would have to
recover one) but the pdc console is setup to serial port (eg no graphic screen
available) just for an output screen without input kbd? 

Thanks for your attention and remarks,
    Joel


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Subject: Re: [parisc-linux] A fix for B2k and CONFIG_PDC_CONSOLE pb
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Sorry for auto reply, but I just find back the right kdb and:

>I would just still check the case when I have an usb kbd (I would have to
>recover one) but the pdc console is setup to serial port (e
>no graphic screen available) just for an output screen without input kbd?


That case is also impossible, the console setup as serial_1 (eg) is always
CL_DUPLEX :(

I will so review my patch.

Thanks for all,
    Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:20704

pa,

If anyone has been looking at his recently, please be kind enough to
explain how this compat shim works :)

Note the following things:

o semid64_ds.sem_ctime is of type __kernel_time_t
	o In a 32-bit build this is an int.
	o Generic code expects this to be a long.
	o For a 32-bit build long == int.

linux-2.6/include/asm-parisc/sembuf.h
---
#ifndef _PARISC_SEMBUF_H
#define _PARISC_SEMBUF_H

/* 
 * The semid64_ds structure for parisc architecture.
 * Note extra padding because this structure is passed back and forth
 * between kernel and user space.
 *
 * Pad space is left for:
 * - 64-bit time_t to solve y2038 problem
 * - 2 miscellaneous 32-bit values
 */

struct semid64_ds {
        struct ipc64_perm sem_perm;             /* permissions .. see ipc.h */
#ifndef __LP64__
        unsigned int    __pad1; 
#endif
        __kernel_time_t sem_otime;              /* last semop time */
#ifndef __LP64__
        unsigned int    __pad2; 
#endif
        __kernel_time_t sem_ctime;              /* last change time */
        unsigned int    sem_nsems;              /* no. of semaphores in array */
        unsigned int    __unused1;
        unsigned int    __unused2;
};

#endif /* _PARISC_SEMBUF_H */
---

linux-2.6/ipc/sem.c
---
   1299                 if(sma) {
   1300                         len += sprintf(buffer + len, "%10d %10d
                                   %4o %10lu %5u %5u %5u %5u %10lu %10lu\n",
   1301                                 sma->sem_perm.key,
   1302                                 sem_buildid(i,sma->sem_perm.seq),
   1303                                 sma->sem_perm.mode,
   1304                                 sma->sem_nsems,
   1305                                 sma->sem_perm.uid,
   1306                                 sma->sem_perm.gid,
   1307                                 sma->sem_perm.cuid,
   1308                                 sma->sem_perm.cgid,
   1309                                 sma->sem_otime,
   1310                                 sma->sem_ctime);
   1311                         sem_unlock(sma);
   1312 
   1313                         pos += len;
   1314                         if(pos < offset) {
   1315                                 len = 0;
   1316                                 begin = pos;
   1317                         }
   1318                         if(pos > offset + length)
   1319                                 goto done;
   1320                 }
---

Note that sem.c looks to have ctime as an unsigned long?
Does this mean that we should change the definition of our
posix_types.h?

linux-2.6/include/asm-parisc/posix_types.h
---
     22 /* Note these change from narrow to wide kernels */
     23 #ifdef __LP64__
     24 typedef unsigned long           __kernel_size_t;
     25 typedef long                    __kernel_ssize_t;
     26 typedef long                    __kernel_ptrdiff_t;
     27 typedef long                    __kernel_time_t;
     28 #else
     29 typedef unsigned int            __kernel_size_t;
     30 typedef int                     __kernel_ssize_t;
     31 typedef int                     __kernel_ptrdiff_t;
     32 typedef int                     __kernel_time_t;
     33 #endif
---

Should the last __kernel_time_t definition be replaced with "unsigned
long," or does the generic code *really* want the ctime to be 64-bits
regardless (see the padding in the semid64_ds structure) so that we
don't have rollover time in 2038 as noted by the comment. I think a
change in the position of sem_nsems would violate ABI, so perhaps it's
best to leave it and have the posix_types.h value change to "unsigned
long."

Thoughts or comments?

c.



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> struct semid64_ds {
>         struct ipc64_perm sem_perm;             /* permissions .. see ipc.h */
> #ifndef __LP64__
>         unsigned int    __pad1; 
> #endif
>         __kernel_time_t sem_otime;              /* last semop time */
> #ifndef __LP64__
>         unsigned int    __pad2; 
> #endif
>         __kernel_time_t sem_ctime;              /* last change time */
>         unsigned int    sem_nsems;              /* no. of semaphores in array */
>         unsigned int    __unused1;
>         unsigned int    __unused2;
> };

Our 32-bit userspace will see different values for this depending on
running a 32-bit kernel or 64-bit. That last sem_ctime should probably
have a padding so our 32-bit userspace sees the right thing all the
time.

Something like?

---
#ifndef __LP64__
	unsigned int	__pad3;
#endif
	__kernel_time_t sem_ctime;
---

c.




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On Mon, Jan 26, 2004 at 02:44:00PM -0500, Carlos O'Donell wrote:
> > struct semid64_ds {
> >         struct ipc64_perm sem_perm;             /* permissions .. see ipc.h */
> > #ifndef __LP64__
> >         unsigned int    __pad1; 
> > #endif
> >         __kernel_time_t sem_otime;              /* last semop time */
> > #ifndef __LP64__
> >         unsigned int    __pad2; 
> > #endif
> >         __kernel_time_t sem_ctime;              /* last change time */
> >         unsigned int    sem_nsems;              /* no. of semaphores in array */
> >         unsigned int    __unused1;
> >         unsigned int    __unused2;
> > };
> 
> Our 32-bit userspace will see different values for this depending on
> running a 32-bit kernel or 64-bit. That last sem_ctime should probably
> have a padding so our 32-bit userspace sees the right thing all the
> time.

Sorry, I got confused with sem_perm, __pad2 is the padding for ctime,
thanks for pointing that out Matthew. Changing the base posix type for
32-bit builds to "long" fixes all the compiler complaints.

False alarm :)

c.


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Today's Topics:

   1. Re: menu not available (Matthew Wilcox)
   2. Re: Re: [parisc-linux] missing barrier in _raw_spin_lock?
      (John David Anglin)
   3. Re: kernel BUG at mm/shmem.c:585! (Carlos O'Donell)
   4. Re: kernel BUG at mm/shmem.c:585! (John David Anglin)
   5. installation failed on C240 (fx4) workstation  
      (Reinhold Flecke CCF)
   6. help installation failed on C240 (fx4) workstation
      (Reinhold Flecke CCF)
   7. Re: kernel BUG at mm/shmem.c:585! (Grant Grundler)
   8. Re: help installation failed on C240 (fx4) workstation
      (Grant Grundler)
   9. A fix for B2k and CONFIG_PDC_CONSOLE pb (Joel Soete)


----------------------------------------------------------------------

Message: 1
Date: Sun, 25 Jan 2004 22:40:40 +0000
From: Matthew Wilcox <willy@debian.org>
Subject: Re: [parisc-linux] menu not available
To: Grant Grundler <grundler@parisc-linux.org>
Cc: "Peralta, Joseph A" <jperalta@WPI.EDU>,
	parisc-linux@lists.parisc-linux.org
Message-ID: <20040125224040.GG11844@parcelfarce.linux.theplanet.co.uk>
Content-Type: text/plain; charset=us-ascii

On Fri, Jan 23, 2004 at 03:11:49PM -0700, Grant Grundler wrote:
> On Fri, Jan 23, 2004 at 04:47:11PM -0500, Peralta, Joseph A wrote:
> > When I try to install certain X-window managers under Debian 3.0 I
get
> > "xxx depends on menu (>> 1.5)... menu is not available" How would I
fix
> > this?
> 
> Dunno...menu is available for "sarge" (aka testing) and that
> works for me. Sounds like someone wants to backport to Woody.

menu is not available for woody because it's written in a language which
bears a passing resemblance to C++.  someone rewrote it in C++ for
sarge.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and
refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


------------------------------

Message: 2
Date: Sun, 25 Jan 2004 19:13:47 -0500 (EST)
From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Subject: Re: Re: [parisc-linux] missing barrier in _raw_spin_lock?
To: arndb@onlinehome.de
Cc: grundler@parisc-linux.org, arnd@arndb.de,
	parisc-linux@parisc-linux.org
Message-ID: <200401260013.i0Q0Dltk013819@hiauly1.hia.nrc.ca>
Content-Type: text/plain; charset=US-ASCII

> > #define __ldcw(a) ({ \
> >   unsigned int __ret;
\
> >   __asm__ __volatile__("ldcw 0(%2),%0"
\
> > 		      : "=r" (__ret), "=m" (*(a)) : "r" (a));
\
> >   __ret;
\
> > })

> I suppose the memory operand specification is required here. Newer 
> compilers (especially gcc-3.4) can optimize away local variables if
you 
> only access the address but not the contents. I think even your 
> pthreads version is not really correct, because it specifies (*(a)) as
> output only instead of inout.

I agree.

> No, putting the barrier into __ldcw is wrong because it would impact
all
> other uses of __ldcw that don't need the barrier. AFAICS, the 

The only other uses for __ldcw are the SPIN_LOCK macro in atomic.h
and the _raw_spin_trylock in spinlock.h (i.e., it is only used
acquire locks).  If all these need barriers, then it might as well
be in __ldcw.

Dave
-- 
J. David Anglin
dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX:
952-6602)


------------------------------

Message: 3
Date: Sun, 25 Jan 2004 21:15:09 -0500
From: Carlos O'Donell <carlos@baldric.uwo.ca>
Subject: Re: [parisc-linux] kernel BUG at mm/shmem.c:585!
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
Cc: grundler@parisc-linux.org, parisc-linux@lists.parisc-linux.org
Message-ID: <20040126021508.GZ1060@baldric.uwo.ca>
Content-Type: text/plain; charset=us-ascii

On Fri, Jan 23, 2004 at 02:40:27PM -0500, John David Anglin wrote:
> > It appears non-fatal, and I want to blame the compiler :)
> 
> I agree but the proof is in the pudding ;-)

I told Grant, that at my current schedule, it would be 2006 
before I fixed this problem :)

It looks like a reordering issue, perhaps taking a look at the
respective .o objects produced by the two compilers might reveal the
issue. I think that's the way we did it when the tty layer broke and we
had to have that console.o compiled with 3.0.4 by hand? I think Randolph
and Grant worked on that together. I might have the wrong names, but
we've successfully debugged a problem like this before using similar
methods.

c.



------------------------------

Message: 4
Date: Sun, 25 Jan 2004 21:35:07 -0500 (EST)
From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Subject: Re: [parisc-linux] kernel BUG at mm/shmem.c:585!
To: carlos@baldric.uwo.ca (Carlos O'Donell)
Cc: grundler@parisc-linux.org, parisc-linux@lists.parisc-linux.org
Message-ID: <200401260235.i0Q2Z783024373@hiauly1.hia.nrc.ca>
Content-Type: text/plain; charset=US-ASCII

> On Fri, Jan 23, 2004 at 02:40:27PM -0500, John David Anglin wrote:
> > > It appears non-fatal, and I want to blame the compiler :)
> > 
> > I agree but the proof is in the pudding ;-)
> 
> I told Grant, that at my current schedule, it would be 2006 
> before I fixed this problem :)

My schedule isn't much better.  I'm off to Tokyo at the end of the week
to waive the Canadian flag at the ISO LRG meetin next week.  After that,
my brother's company would like me to work on more firmware for a new
project.

Is this on a SMP kernel (i.e., could this be a locking issue)?

Dave
-- 
J. David Anglin
dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX:
952-6602)


------------------------------

Message: 5
Date: Mon, 26 Jan 2004 11:54:13 +0100
From: "Reinhold Flecke CCF" <reinhold.flecke@ccf-consulting.de>
Subject: [parisc-linux] installation failed on C240 (fx4) workstation
	
To: <parisc-linux@lists.parisc-linux.org>
Message-ID:
	<LBEMKLBEFDGDOGGAOGIKAEJPCCAA.reinhold.flecke@ccf-consulting.de>
Content-Type: text/plain; charset="iso-8859-1"

I downloaded the "debian-30r2-hppa-binary-1.iso" and burned it to CD. 
If I start the installation on my C240 (fx4) workstation  with the
command:
bo sescsi.2.0

it seems everything ok, until I get the message:
..If this is the last message you see, you may need to switch your
console.
  This is a common sympton sarch the FAQ and mailing list at
parisc-linux.org

After this nothing happens anymore.
I searched the FAQ and mailing list but I could not find a solution.
Anyone who can help?

Thanks in advance.

Best Regards
Reinhold Flecke


Reinhold Flecke CCF
Fon:	+49 (0)5292 930601 (Office)
	+49 (0)700 93000093 (PR)
eMail:	<mailto:Reinhold.Flecke@ccf-consulting.de>

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Message: 6
Date: Mon, 26 Jan 2004 12:13:22 +0100
From: "Reinhold Flecke CCF" <reinhold.flecke@ccf-consulting.de>
Subject: [parisc-linux] help installation failed on C240 (fx4)
	workstation
To: <parisc-linux@lists.parisc-linux.org>
Message-ID:
	<LBEMKLBEFDGDOGGAOGIKOEJPCCAA.reinhold.flecke@ccf-consulting.de>
Content-Type: text/plain; charset="iso-8859-1"

I downloaded the "debian-30r2-hppa-binary-1.iso" and burned it to CD. 
If I start the installation on my C240 (fx4) workstation  with the
command:
bo sescsi.2.0

it seems everything ok, until I get the message:
..If this is the last message you see, you may need to switch your
console.
  This is a common sympton sarch the FAQ and mailing list at
parisc-linux.org

After this nothing happens anymore.
I searched the FAQ and mailing list but I could not find a solution.
Anyone who can help?

Thanks in advance.


Best Regards
Reinhold Flecke


Reinhold Flecke CCF
Auf dem Anger 18
33165 Lichtenau-Husen
Fon:	+49 (0)5292 930601 (Office)
	+49 (0)700 93000093 (PR)
eMail:	<mailto:Reinhold.Flecke@ccf-consulting.de>

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------------------------------

Message: 7
Date: Mon, 26 Jan 2004 08:53:56 -0700
From: Grant Grundler <grundler@parisc-linux.org>
Subject: Re: [parisc-linux] kernel BUG at mm/shmem.c:585!
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
Cc: Carlos O'Donell <carlos@baldric.uwo.ca>,
	parisc-linux@lists.parisc-linux.org
Message-ID: <20040126155356.GA12175@colo.lackof.org>
Content-Type: text/plain; charset=us-ascii

On Sun, Jan 25, 2004 at 09:35:07PM -0500, John David Anglin wrote:
> Is this on a SMP kernel (i.e., could this be a locking issue)?

no. I don't build or run SMP kernels on anything at the moment.

thanks,
grant


------------------------------

Message: 8
Date: Mon, 26 Jan 2004 09:13:16 -0700
From: Grant Grundler <grundler@parisc-linux.org>
Subject: Re: [parisc-linux] help installation failed on C240 (fx4)
	workstation
To: Reinhold Flecke CCF <reinhold.flecke@ccf-consulting.de>
Cc: parisc-linux@lists.parisc-linux.org
Message-ID: <20040126161316.GC12175@colo.lackof.org>
Content-Type: text/plain; charset=us-ascii

On Mon, Jan 26, 2004 at 12:13:22PM +0100, Reinhold Flecke CCF wrote:
> I downloaded the "debian-30r2-hppa-binary-1.iso" and burned it to CD. 
> If I start the installation on my C240 (fx4) workstation  with the
command:
> bo sescsi.2.0

FX-4 graphics is not supported.
Either use serial console or replace the FX4 with PCI FX-E.

sorry,
grant


------------------------------

Message: 9
Date: Mon, 26 Jan 2004 18:00:53 +0100
From: "Joel Soete" <soete.joel@tiscali.be>
Subject: [parisc-linux] A fix for B2k and CONFIG_PDC_CONSOLE pb
To: "Grant Grundler" <grundler@parisc-linux.org>,	"Christoph
Plattner"
	<christoph.plattner@gmx.at>
Cc: parisc-linux@lists.parisc-linux.org
Message-ID: <400CB8A100004C60@ocpmta3.freegates.net>
Content-Type: text/plain; charset="iso-8859-1"

Hi Grant, Christoph,

I find a fix for this pb. I tested successfully (I reach to login with a
ttyB0 after replacing ttyS0 in inittab and telinit q :) ) on a 32bit 2.4
kernel on my b2k and a 64bit (up) [also 2.4] kernel on my N4k.

Here is its main part:
diff -NaurX dontdiff linux-2.4.24-pa0.orig/arch/parisc/kernel/firmware.c
linux-2.4.24-pa0/arch/parisc/kernel/firmware.c
--- linux-2.4.24-pa0.orig/arch/parisc/kernel/firmware.c	2003-10-02
07:30:55.000000000
+0200
+++ linux-2.4.24-pa0/arch/parisc/kernel/firmware.c	2004-01-26
16:48:23.000000000
+0100
@@ -871,15 +937,21 @@
 	int status;
 
 	/* Bail if no console input device. */
-	if (!PAGE0->mem_kbd.iodc_io)
+	if ((PAGE0->mem_cons.cl_class != CL_DUPLEX) &&
!PAGE0->mem_kbd.iodc_io)
 		return 0;
 	
 	/* wait for a keyboard (rs232)-input */
 	spin_lock_irqsave(&pdc_lock, flags);
-	real32_call(PAGE0->mem_kbd.iodc_io,
-		    (unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN,
-		    PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers), 
-		    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
+	if (PAGE0->mem_cons.cl_class == CL_DUPLEX)
+		real32_call(PAGE0->mem_cons.iodc_io,
+			    (unsigned long)PAGE0->mem_cons.hpa,
ENTRY_IO_CIN,
+			    PAGE0->mem_cons.spa,
__pa(PAGE0->mem_cons.dp.layers), 
+			    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1,
0);
+	else
+		real32_call(PAGE0->mem_kbd.iodc_io,
+			    (unsigned long)PAGE0->mem_kbd.hpa,
ENTRY_IO_CIN,
+			    PAGE0->mem_kbd.spa,
__pa(PAGE0->mem_kbd.dp.layers), 
+			    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1,
0);
 
 	ch = *iodc_dbuf;
 	status = *iodc_retbuf;
diff -NaurX dontdiff linux-2.4.24-pa0.orig/arch/parisc/kernel/pdc_cons.c
linux-2.4.24-pa0/arch/parisc/kernel/pdc_cons.c
--- linux-2.4.24-pa0.orig/arch/parisc/kernel/pdc_cons.c	2004-01-19
07:25:46.000000000
+0100
+++ linux-2.4.24-pa0/arch/parisc/kernel/pdc_cons.c	2004-01-26
16:53:32.000000000
+0100
@@ -113,10 +112,6 @@
 		return;
 	++pdc_console_initialized;
 	
-	/* If the console is duplex then copy the COUT parameters to
CIN. */
-	if (PAGE0->mem_cons.cl_class == CL_DUPLEX)
-		memcpy(&PAGE0->mem_kbd, &PAGE0->mem_cons,
sizeof(PAGE0->mem_cons));
-
 	/* register the pdc console */
 	register_console(&pdc_cons);
 }
==========><==========

Can somebody else could also test it on some other platform to be sure I
don't broken other stuff?

Thanks in advance,
    Joel

PS: Grant I join the text file of the final backport of 2.6 work
included
this patch. Thanks in advance for your attention

------------------------------------------------------------------------
-
Tiscali ADSL: 12 mois  29,50 EUR/mois! L'Internet rapide, c'est pour
tout
le monde.
http://reg.tiscali.be/default.asp?lg=fr


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------------------------------

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http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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<P><FONT SIZE=3D2>Send parisc-linux mailing list submissions to</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>parisc-linux@lists.parisc-linux.org</FONT>
</P>

<P><FONT SIZE=3D2>To subscribe or unsubscribe via the World Wide Web, =
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linux</A></FONT>
<BR><FONT SIZE=3D2>or, via email, send a message with subject or body =
'help' to</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
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</P>

<P><FONT SIZE=3D2>You can reach the person managing the list at</FONT>
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</P>

<P><FONT SIZE=3D2>When replying, please edit your Subject line so it is =
more specific</FONT>
<BR><FONT SIZE=3D2>than &quot;Re: Contents of parisc-linux =
digest...&quot;</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Today's Topics:</FONT>
</P>

<P><FONT SIZE=3D2>&nbsp;&nbsp; 1. Re: menu not available (Matthew =
Wilcox)</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp; 2. Re: Re: [parisc-linux] missing =
barrier in _raw_spin_lock?</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (John David =
Anglin)</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp; 3. Re: kernel BUG at mm/shmem.c:585! =
(Carlos O'Donell)</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp; 4. Re: kernel BUG at mm/shmem.c:585! =
(John David Anglin)</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp; 5. installation failed on C240 (fx4) =
workstation&nbsp; </FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (Reinhold Flecke =
CCF)</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp; 6. help installation failed on C240 =
(fx4) workstation</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (Reinhold Flecke =
CCF)</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp; 7. Re: kernel BUG at mm/shmem.c:585! =
(Grant Grundler)</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp; 8. Re: help installation failed on C240 =
(fx4) workstation</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (Grant =
Grundler)</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp; 9. A fix for B2k and CONFIG_PDC_CONSOLE =
pb (Joel Soete)</FONT>
</P>
<BR>

<P><FONT =
SIZE=3D2>---------------------------------------------------------------=
-------</FONT>
</P>

<P><FONT SIZE=3D2>Message: 1</FONT>
<BR><FONT SIZE=3D2>Date: Sun, 25 Jan 2004 22:40:40 +0000</FONT>
<BR><FONT SIZE=3D2>From: Matthew Wilcox &lt;willy@debian.org&gt;</FONT>
<BR><FONT SIZE=3D2>Subject: Re: [parisc-linux] menu not =
available</FONT>
<BR><FONT SIZE=3D2>To: Grant Grundler =
&lt;grundler@parisc-linux.org&gt;</FONT>
<BR><FONT SIZE=3D2>Cc: &quot;Peralta, Joseph A&quot; =
&lt;jperalta@WPI.EDU&gt;,</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>Message-ID: =
&lt;20040125224040.GG11844@parcelfarce.linux.theplanet.co.uk&gt;</FONT>
<BR><FONT SIZE=3D2>Content-Type: text/plain; charset=3Dus-ascii</FONT>
</P>

<P><FONT SIZE=3D2>On Fri, Jan 23, 2004 at 03:11:49PM -0700, Grant =
Grundler wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; On Fri, Jan 23, 2004 at 04:47:11PM -0500, =
Peralta, Joseph A wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; When I try to install certain X-window =
managers under Debian 3.0 I get</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &quot;xxx depends on menu (&gt;&gt; =
1.5)... menu is not available&quot; How would I fix</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; this?</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; Dunno...menu is available for &quot;sarge&quot; =
(aka testing) and that</FONT>
<BR><FONT SIZE=3D2>&gt; works for me. Sounds like someone wants to =
backport to Woody.</FONT>
</P>

<P><FONT SIZE=3D2>menu is not available for woody because it's written =
in a language which</FONT>
<BR><FONT SIZE=3D2>bears a passing resemblance to C++.&nbsp; someone =
rewrote it in C++ for sarge.</FONT>
</P>

<P><FONT SIZE=3D2>-- </FONT>
<BR><FONT SIZE=3D2>&quot;Next the statesmen will invent cheap lies, =
putting the blame upon </FONT>
<BR><FONT SIZE=3D2>the nation that is attacked, and every man will be =
glad of those</FONT>
<BR><FONT SIZE=3D2>conscience-soothing falsities, and will diligently =
study them, and refuse</FONT>
<BR><FONT SIZE=3D2>to examine any refutations of them; and thus he will =
by and by convince </FONT>
<BR><FONT SIZE=3D2>himself that the war is just, and will thank God for =
the better sleep </FONT>
<BR><FONT SIZE=3D2>he enjoys after this process of grotesque =
self-deception.&quot; -- Mark Twain</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>------------------------------</FONT>
</P>

<P><FONT SIZE=3D2>Message: 2</FONT>
<BR><FONT SIZE=3D2>Date: Sun, 25 Jan 2004 19:13:47 -0500 (EST)</FONT>
<BR><FONT SIZE=3D2>From: &quot;John David Anglin&quot; =
&lt;dave@hiauly1.hia.nrc.ca&gt;</FONT>
<BR><FONT SIZE=3D2>Subject: Re: Re: [parisc-linux] missing barrier in =
_raw_spin_lock?</FONT>
<BR><FONT SIZE=3D2>To: arndb@onlinehome.de</FONT>
<BR><FONT SIZE=3D2>Cc: grundler@parisc-linux.org, arnd@arndb.de,</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>parisc-linux@parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>Message-ID: =
&lt;200401260013.i0Q0Dltk013819@hiauly1.hia.nrc.ca&gt;</FONT>
<BR><FONT SIZE=3D2>Content-Type: text/plain; charset=3DUS-ASCII</FONT>
</P>

<P><FONT SIZE=3D2>&gt; &gt; #define __ldcw(a) ({ \</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;&nbsp;&nbsp; unsigned int =
__ret;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; \</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;&nbsp;&nbsp; __asm__ =
__volatile__(&quot;ldcw =
0(%2),%0&quot;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
\</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : &quot;=3Dr&quot; (__ret), =
&quot;=3Dm&quot; (*(a)) : &quot;r&quot; =
(a));&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
\</FONT>
<BR><FONT SIZE=3D2>&gt; &gt;&nbsp;&nbsp; =
__ret;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; \</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; })</FONT>
</P>

<P><FONT SIZE=3D2>&gt; I suppose the memory operand specification is =
required here. Newer </FONT>
<BR><FONT SIZE=3D2>&gt; compilers (especially gcc-3.4) can optimize =
away local variables if you </FONT>
<BR><FONT SIZE=3D2>&gt; only access the address but not the contents. I =
think even your </FONT>
<BR><FONT SIZE=3D2>&gt; pthreads version is not really correct, because =
it specifies (*(a)) as</FONT>
<BR><FONT SIZE=3D2>&gt; output only instead of inout.</FONT>
</P>

<P><FONT SIZE=3D2>I agree.</FONT>
</P>

<P><FONT SIZE=3D2>&gt; No, putting the barrier into __ldcw is wrong =
because it would impact all</FONT>
<BR><FONT SIZE=3D2>&gt; other uses of __ldcw that don't need the =
barrier. AFAICS, the </FONT>
</P>

<P><FONT SIZE=3D2>The only other uses for __ldcw are the SPIN_LOCK =
macro in atomic.h</FONT>
<BR><FONT SIZE=3D2>and the _raw_spin_trylock in spinlock.h (i.e., it is =
only used</FONT>
<BR><FONT SIZE=3D2>acquire locks).&nbsp; If all these need barriers, =
then it might as well</FONT>
<BR><FONT SIZE=3D2>be in __ldcw.</FONT>
</P>

<P><FONT SIZE=3D2>Dave</FONT>
<BR><FONT SIZE=3D2>-- </FONT>
<BR><FONT SIZE=3D2>J. David =
Anglin&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
dave.anglin@nrc-cnrc.gc.ca</FONT>
<BR><FONT SIZE=3D2>National Research Council of =
Canada&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; (613) 990-0752 (FAX: 952-6602)</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>------------------------------</FONT>
</P>

<P><FONT SIZE=3D2>Message: 3</FONT>
<BR><FONT SIZE=3D2>Date: Sun, 25 Jan 2004 21:15:09 -0500</FONT>
<BR><FONT SIZE=3D2>From: Carlos O'Donell =
&lt;carlos@baldric.uwo.ca&gt;</FONT>
<BR><FONT SIZE=3D2>Subject: Re: [parisc-linux] kernel BUG at =
mm/shmem.c:585!</FONT>
<BR><FONT SIZE=3D2>To: John David Anglin =
&lt;dave@hiauly1.hia.nrc.ca&gt;</FONT>
<BR><FONT SIZE=3D2>Cc: grundler@parisc-linux.org, =
parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>Message-ID: =
&lt;20040126021508.GZ1060@baldric.uwo.ca&gt;</FONT>
<BR><FONT SIZE=3D2>Content-Type: text/plain; charset=3Dus-ascii</FONT>
</P>

<P><FONT SIZE=3D2>On Fri, Jan 23, 2004 at 02:40:27PM -0500, John David =
Anglin wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; It appears non-fatal, and I want to blame =
the compiler :)</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; I agree but the proof is in the pudding =
;-)</FONT>
</P>

<P><FONT SIZE=3D2>I told Grant, that at my current schedule, it would =
be 2006 </FONT>
<BR><FONT SIZE=3D2>before I fixed this problem :)</FONT>
</P>

<P><FONT SIZE=3D2>It looks like a reordering issue, perhaps taking a =
look at the</FONT>
<BR><FONT SIZE=3D2>respective .o objects produced by the two compilers =
might reveal the</FONT>
<BR><FONT SIZE=3D2>issue. I think that's the way we did it when the tty =
layer broke and we</FONT>
<BR><FONT SIZE=3D2>had to have that console.o compiled with 3.0.4 by =
hand? I think Randolph</FONT>
<BR><FONT SIZE=3D2>and Grant worked on that together. I might have the =
wrong names, but</FONT>
<BR><FONT SIZE=3D2>we've successfully debugged a problem like this =
before using similar</FONT>
<BR><FONT SIZE=3D2>methods.</FONT>
</P>

<P><FONT SIZE=3D2>c.</FONT>
</P>
<BR>
<BR>

<P><FONT SIZE=3D2>------------------------------</FONT>
</P>

<P><FONT SIZE=3D2>Message: 4</FONT>
<BR><FONT SIZE=3D2>Date: Sun, 25 Jan 2004 21:35:07 -0500 (EST)</FONT>
<BR><FONT SIZE=3D2>From: &quot;John David Anglin&quot; =
&lt;dave@hiauly1.hia.nrc.ca&gt;</FONT>
<BR><FONT SIZE=3D2>Subject: Re: [parisc-linux] kernel BUG at =
mm/shmem.c:585!</FONT>
<BR><FONT SIZE=3D2>To: carlos@baldric.uwo.ca (Carlos O'Donell)</FONT>
<BR><FONT SIZE=3D2>Cc: grundler@parisc-linux.org, =
parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>Message-ID: =
&lt;200401260235.i0Q2Z783024373@hiauly1.hia.nrc.ca&gt;</FONT>
<BR><FONT SIZE=3D2>Content-Type: text/plain; charset=3DUS-ASCII</FONT>
</P>

<P><FONT SIZE=3D2>&gt; On Fri, Jan 23, 2004 at 02:40:27PM -0500, John =
David Anglin wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; &gt; It appears non-fatal, and I want to =
blame the compiler :)</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; I agree but the proof is in the pudding =
;-)</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; I told Grant, that at my current schedule, it =
would be 2006 </FONT>
<BR><FONT SIZE=3D2>&gt; before I fixed this problem :)</FONT>
</P>

<P><FONT SIZE=3D2>My schedule isn't much better.&nbsp; I'm off to Tokyo =
at the end of the week</FONT>
<BR><FONT SIZE=3D2>to waive the Canadian flag at the ISO LRG meetin =
next week.&nbsp; After that,</FONT>
<BR><FONT SIZE=3D2>my brother's company would like me to work on more =
firmware for a new</FONT>
<BR><FONT SIZE=3D2>project.</FONT>
</P>

<P><FONT SIZE=3D2>Is this on a SMP kernel (i.e., could this be a =
locking issue)?</FONT>
</P>

<P><FONT SIZE=3D2>Dave</FONT>
<BR><FONT SIZE=3D2>-- </FONT>
<BR><FONT SIZE=3D2>J. David =
Anglin&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
dave.anglin@nrc-cnrc.gc.ca</FONT>
<BR><FONT SIZE=3D2>National Research Council of =
Canada&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; (613) 990-0752 (FAX: 952-6602)</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>------------------------------</FONT>
</P>

<P><FONT SIZE=3D2>Message: 5</FONT>
<BR><FONT SIZE=3D2>Date: Mon, 26 Jan 2004 11:54:13 +0100</FONT>
<BR><FONT SIZE=3D2>From: &quot;Reinhold Flecke CCF&quot; =
&lt;reinhold.flecke@ccf-consulting.de&gt;</FONT>
<BR><FONT SIZE=3D2>Subject: [parisc-linux] installation failed on C240 =
(fx4) workstation</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
<BR><FONT SIZE=3D2>To: =
&lt;parisc-linux@lists.parisc-linux.org&gt;</FONT>
<BR><FONT SIZE=3D2>Message-ID:</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>&lt;LBEMKLBEFDGDOGGAOGIKAEJPCCAA.reinhold.flecke@ccf-consulting=
de&gt;</FONT>
<BR><FONT SIZE=3D2>Content-Type: text/plain; =
charset=3D&quot;iso-8859-1&quot;</FONT>
</P>

<P><FONT SIZE=3D2>I downloaded the =
&quot;debian-30r2-hppa-binary-1.iso&quot; and burned it to CD. </FONT>
<BR><FONT SIZE=3D2>If I start the installation on my C240 (fx4) =
workstation&nbsp; with the command:</FONT>
<BR><FONT SIZE=3D2>bo sescsi.2.0</FONT>
</P>

<P><FONT SIZE=3D2>it seems everything ok, until I get the =
message:</FONT>
<BR><FONT SIZE=3D2>...If this is the last message you see, you may need =
to switch your console.</FONT>
<BR><FONT SIZE=3D2>&nbsp; This is a common sympton sarch the FAQ and =
mailing list at</FONT>
<BR><FONT SIZE=3D2>parisc-linux.org</FONT>
</P>

<P><FONT SIZE=3D2>After this nothing happens anymore.</FONT>
<BR><FONT SIZE=3D2>I searched the FAQ and mailing list but I could not =
find a solution.</FONT>
<BR><FONT SIZE=3D2>Anyone who can help?</FONT>
</P>

<P><FONT SIZE=3D2>Thanks in advance.</FONT>
</P>

<P><FONT SIZE=3D2>Best Regards</FONT>
<BR><FONT SIZE=3D2>Reinhold Flecke</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Reinhold Flecke CCF</FONT>
<BR><FONT SIZE=3D2>Fon:&nbsp;&nbsp;&nbsp; +49 (0)5292 930601 =
(Office)</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=3D2>+49 =
(0)700 93000093 (PR)</FONT>
<BR><FONT SIZE=3D2>eMail:&nbsp; &lt;<A =
HREF=3D"mailto:Reinhold.Flecke@ccf-consulting.de">mailto:Reinhold.Flecke=
@ccf-consulting.de</A>&gt;</FONT>
</P>

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</P>

<P><FONT SIZE=3D2>------------------------------</FONT>
</P>

<P><FONT SIZE=3D2>Message: 6</FONT>
<BR><FONT SIZE=3D2>Date: Mon, 26 Jan 2004 12:13:22 +0100</FONT>
<BR><FONT SIZE=3D2>From: &quot;Reinhold Flecke CCF&quot; =
&lt;reinhold.flecke@ccf-consulting.de&gt;</FONT>
<BR><FONT SIZE=3D2>Subject: [parisc-linux] help installation failed on =
C240 (fx4)</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>workstation</FONT>
<BR><FONT SIZE=3D2>To: =
&lt;parisc-linux@lists.parisc-linux.org&gt;</FONT>
<BR><FONT SIZE=3D2>Message-ID:</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>&lt;LBEMKLBEFDGDOGGAOGIKOEJPCCAA.reinhold.flecke@ccf-consulting=
de&gt;</FONT>
<BR><FONT SIZE=3D2>Content-Type: text/plain; =
charset=3D&quot;iso-8859-1&quot;</FONT>
</P>

<P><FONT SIZE=3D2>I downloaded the =
&quot;debian-30r2-hppa-binary-1.iso&quot; and burned it to CD. </FONT>
<BR><FONT SIZE=3D2>If I start the installation on my C240 (fx4) =
workstation&nbsp; with the command:</FONT>
<BR><FONT SIZE=3D2>bo sescsi.2.0</FONT>
</P>

<P><FONT SIZE=3D2>it seems everything ok, until I get the =
message:</FONT>
<BR><FONT SIZE=3D2>...If this is the last message you see, you may need =
to switch your console.</FONT>
<BR><FONT SIZE=3D2>&nbsp; This is a common sympton sarch the FAQ and =
mailing list at</FONT>
<BR><FONT SIZE=3D2>parisc-linux.org</FONT>
</P>

<P><FONT SIZE=3D2>After this nothing happens anymore.</FONT>
<BR><FONT SIZE=3D2>I searched the FAQ and mailing list but I could not =
find a solution.</FONT>
<BR><FONT SIZE=3D2>Anyone who can help?</FONT>
</P>

<P><FONT SIZE=3D2>Thanks in advance.</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Best Regards</FONT>
<BR><FONT SIZE=3D2>Reinhold Flecke</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Reinhold Flecke CCF</FONT>
<BR><FONT SIZE=3D2>Auf dem Anger 18</FONT>
<BR><FONT SIZE=3D2>33165 Lichtenau-Husen</FONT>
<BR><FONT SIZE=3D2>Fon:&nbsp;&nbsp;&nbsp; +49 (0)5292 930601 =
(Office)</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=3D2>+49 =
(0)700 93000093 (PR)</FONT>
<BR><FONT SIZE=3D2>eMail:&nbsp; &lt;<A =
HREF=3D"mailto:Reinhold.Flecke@ccf-consulting.de">mailto:Reinhold.Flecke=
@ccf-consulting.de</A>&gt;</FONT>
</P>

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ttachments/20040126/902d4aa3/winmail-0001.bin</A></FONT>
</P>

<P><FONT SIZE=3D2>------------------------------</FONT>
</P>

<P><FONT SIZE=3D2>Message: 7</FONT>
<BR><FONT SIZE=3D2>Date: Mon, 26 Jan 2004 08:53:56 -0700</FONT>
<BR><FONT SIZE=3D2>From: Grant Grundler =
&lt;grundler@parisc-linux.org&gt;</FONT>
<BR><FONT SIZE=3D2>Subject: Re: [parisc-linux] kernel BUG at =
mm/shmem.c:585!</FONT>
<BR><FONT SIZE=3D2>To: John David Anglin =
&lt;dave@hiauly1.hia.nrc.ca&gt;</FONT>
<BR><FONT SIZE=3D2>Cc: Carlos O'Donell =
&lt;carlos@baldric.uwo.ca&gt;,</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>Message-ID: =
&lt;20040126155356.GA12175@colo.lackof.org&gt;</FONT>
<BR><FONT SIZE=3D2>Content-Type: text/plain; charset=3Dus-ascii</FONT>
</P>

<P><FONT SIZE=3D2>On Sun, Jan 25, 2004 at 09:35:07PM -0500, John David =
Anglin wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; Is this on a SMP kernel (i.e., could this be a =
locking issue)?</FONT>
</P>

<P><FONT SIZE=3D2>no. I don't build or run SMP kernels on anything at =
the moment.</FONT>
</P>

<P><FONT SIZE=3D2>thanks,</FONT>
<BR><FONT SIZE=3D2>grant</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>------------------------------</FONT>
</P>

<P><FONT SIZE=3D2>Message: 8</FONT>
<BR><FONT SIZE=3D2>Date: Mon, 26 Jan 2004 09:13:16 -0700</FONT>
<BR><FONT SIZE=3D2>From: Grant Grundler =
&lt;grundler@parisc-linux.org&gt;</FONT>
<BR><FONT SIZE=3D2>Subject: Re: [parisc-linux] help installation failed =
on C240 (fx4)</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>workstation</FONT>
<BR><FONT SIZE=3D2>To: Reinhold Flecke CCF =
&lt;reinhold.flecke@ccf-consulting.de&gt;</FONT>
<BR><FONT SIZE=3D2>Cc: parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>Message-ID: =
&lt;20040126161316.GC12175@colo.lackof.org&gt;</FONT>
<BR><FONT SIZE=3D2>Content-Type: text/plain; charset=3Dus-ascii</FONT>
</P>

<P><FONT SIZE=3D2>On Mon, Jan 26, 2004 at 12:13:22PM +0100, Reinhold =
Flecke CCF wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; I downloaded the =
&quot;debian-30r2-hppa-binary-1.iso&quot; and burned it to CD. </FONT>
<BR><FONT SIZE=3D2>&gt; If I start the installation on my C240 (fx4) =
workstation&nbsp; with the command:</FONT>
<BR><FONT SIZE=3D2>&gt; bo sescsi.2.0</FONT>
</P>

<P><FONT SIZE=3D2>FX-4 graphics is not supported.</FONT>
<BR><FONT SIZE=3D2>Either use serial console or replace the FX4 with =
PCI FX-E.</FONT>
</P>

<P><FONT SIZE=3D2>sorry,</FONT>
<BR><FONT SIZE=3D2>grant</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>------------------------------</FONT>
</P>

<P><FONT SIZE=3D2>Message: 9</FONT>
<BR><FONT SIZE=3D2>Date: Mon, 26 Jan 2004 18:00:53 +0100</FONT>
<BR><FONT SIZE=3D2>From: &quot;Joel Soete&quot; =
&lt;soete.joel@tiscali.be&gt;</FONT>
<BR><FONT SIZE=3D2>Subject: [parisc-linux] A fix for B2k and =
CONFIG_PDC_CONSOLE pb</FONT>
<BR><FONT SIZE=3D2>To: &quot;Grant Grundler&quot; =
&lt;grundler@parisc-linux.org&gt;,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&quot;Christoph Plattner&quot;</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>&lt;christoph.plattner@gmx.at&gt;</FONT>
<BR><FONT SIZE=3D2>Cc: parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>Message-ID: =
&lt;400CB8A100004C60@ocpmta3.freegates.net&gt;</FONT>
<BR><FONT SIZE=3D2>Content-Type: text/plain; =
charset=3D&quot;iso-8859-1&quot;</FONT>
</P>

<P><FONT SIZE=3D2>Hi Grant, Christoph,</FONT>
</P>

<P><FONT SIZE=3D2>I find a fix for this pb. I tested successfully (I =
reach to login with a</FONT>
<BR><FONT SIZE=3D2>ttyB0 after replacing ttyS0 in inittab and telinit q =
:) ) on a 32bit 2.4</FONT>
<BR><FONT SIZE=3D2>kernel on my b2k and a 64bit (up) [also 2.4] kernel =
on my N4k.</FONT>
</P>

<P><FONT SIZE=3D2>Here is its main part:</FONT>
<BR><FONT SIZE=3D2>diff -NaurX dontdiff =
linux-2.4.24-pa0.orig/arch/parisc/kernel/firmware.c</FONT>
<BR><FONT =
SIZE=3D2>linux-2.4.24-pa0/arch/parisc/kernel/firmware.c</FONT>
<BR><FONT SIZE=3D2>--- =
linux-2.4.24-pa0.orig/arch/parisc/kernel/firmware.c 2003-10-02 =
07:30:55.000000000</FONT>
<BR><FONT SIZE=3D2>+0200</FONT>
<BR><FONT SIZE=3D2>+++ =
linux-2.4.24-pa0/arch/parisc/kernel/firmware.c&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp; 2004-01-26 16:48:23.000000000</FONT>
<BR><FONT SIZE=3D2>+0100</FONT>
<BR><FONT SIZE=3D2>@@ -871,15 +937,21 @@</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int =
status;</FONT>
<BR><FONT SIZE=3D2>&nbsp;</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* Bail =
if no console input device. */</FONT>
<BR><FONT SIZE=3D2>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if =
(!PAGE0-&gt;mem_kbd.iodc_io)</FONT>
<BR><FONT SIZE=3D2>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if =
((PAGE0-&gt;mem_cons.cl_class !=3D CL_DUPLEX) &amp;&amp; =
!PAGE0-&gt;mem_kbd.iodc_io)</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return 0;</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* wait =
for a keyboard (rs232)-input */</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
spin_lock_irqsave(&amp;pdc_lock, flags);</FONT>
<BR><FONT SIZE=3D2>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
real32_call(PAGE0-&gt;mem_kbd.iodc_io,</FONT>
<BR><FONT SIZE=3D2>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; (unsigned =
long)PAGE0-&gt;mem_kbd.hpa, ENTRY_IO_CIN,</FONT>
<BR><FONT SIZE=3D2>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; =
PAGE0-&gt;mem_kbd.spa, __pa(PAGE0-&gt;mem_kbd.dp.layers), </FONT>
<BR><FONT SIZE=3D2>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; =
__pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);</FONT>
<BR><FONT SIZE=3D2>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if =
(PAGE0-&gt;mem_cons.cl_class =3D=3D CL_DUPLEX)</FONT>
<BR><FONT SIZE=3D2>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
real32_call(PAGE0-&gt;mem_cons.iodc_io,</FONT>
<BR><FONT SIZE=3D2>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; (unsigned =
long)PAGE0-&gt;mem_cons.hpa, ENTRY_IO_CIN,</FONT>
<BR><FONT SIZE=3D2>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; =
PAGE0-&gt;mem_cons.spa, __pa(PAGE0-&gt;mem_cons.dp.layers), </FONT>
<BR><FONT SIZE=3D2>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; =
__pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);</FONT>
<BR><FONT SIZE=3D2>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; else</FONT>
<BR><FONT SIZE=3D2>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
real32_call(PAGE0-&gt;mem_kbd.iodc_io,</FONT>
<BR><FONT SIZE=3D2>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; (unsigned =
long)PAGE0-&gt;mem_kbd.hpa, ENTRY_IO_CIN,</FONT>
<BR><FONT SIZE=3D2>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; =
PAGE0-&gt;mem_kbd.spa, __pa(PAGE0-&gt;mem_kbd.dp.layers), </FONT>
<BR><FONT SIZE=3D2>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; =
__pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);</FONT>
<BR><FONT SIZE=3D2>&nbsp;</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ch =3D =
*iodc_dbuf;</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; status =
=3D *iodc_retbuf;</FONT>
<BR><FONT SIZE=3D2>diff -NaurX dontdiff =
linux-2.4.24-pa0.orig/arch/parisc/kernel/pdc_cons.c</FONT>
<BR><FONT =
SIZE=3D2>linux-2.4.24-pa0/arch/parisc/kernel/pdc_cons.c</FONT>
<BR><FONT SIZE=3D2>--- =
linux-2.4.24-pa0.orig/arch/parisc/kernel/pdc_cons.c 2004-01-19 =
07:25:46.000000000</FONT>
<BR><FONT SIZE=3D2>+0100</FONT>
<BR><FONT SIZE=3D2>+++ =
linux-2.4.24-pa0/arch/parisc/kernel/pdc_cons.c&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp; 2004-01-26 16:53:32.000000000</FONT>
<BR><FONT SIZE=3D2>+0100</FONT>
<BR><FONT SIZE=3D2>@@ -113,10 +112,6 @@</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return;</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
++pdc_console_initialized;</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT>
<BR><FONT SIZE=3D2>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* If the =
console is duplex then copy the COUT parameters to CIN. */</FONT>
<BR><FONT SIZE=3D2>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if =
(PAGE0-&gt;mem_cons.cl_class =3D=3D CL_DUPLEX)</FONT>
<BR><FONT SIZE=3D2>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
memcpy(&amp;PAGE0-&gt;mem_kbd, &amp;PAGE0-&gt;mem_cons, =
sizeof(PAGE0-&gt;mem_cons));</FONT>
<BR><FONT SIZE=3D2>-</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* =
register the pdc console */</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
register_console(&amp;pdc_cons);</FONT>
<BR><FONT SIZE=3D2>&nbsp;}</FONT>
<BR><FONT =
SIZE=3D2>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D&gt;&lt;=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D</FONT>
</P>

<P><FONT SIZE=3D2>Can somebody else could also test it on some other =
platform to be sure I</FONT>
<BR><FONT SIZE=3D2>don't broken other stuff?</FONT>
</P>

<P><FONT SIZE=3D2>Thanks in advance,</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp; Joel</FONT>
</P>

<P><FONT SIZE=3D2>PS: Grant I join the text file of the final backport =
of 2.6 work included</FONT>
<BR><FONT SIZE=3D2>this patch. Thanks in advance for your =
attention</FONT>
</P>

<P><FONT =
SIZE=3D2>---------------------------------------------------------------=
----------</FONT>
<BR><FONT SIZE=3D2>Tiscali ADSL: 12 mois =E0 29,50 &#8364;/mois! =
L'Internet rapide, c'est pour tout</FONT>
<BR><FONT SIZE=3D2>le monde.</FONT>
<BR><FONT SIZE=3D2><A =
HREF=3D"http://reg.tiscali.be/default.asp?lg=3Dfr" =
TARGET=3D"_blank">http://reg.tiscali.be/default.asp?lg=3Dfr</A></FONT>
</P>
<BR>

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</P>

<P><FONT SIZE=3D2>------------------------------</FONT>
</P>

<P><FONT =
SIZE=3D2>_______________________________________________</FONT>
<BR><FONT SIZE=3D2>parisc-linux mailing list</FONT>
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When replying, please edit your Subject line so it is more specific
than "Re: Contents of parisc-linux digest..."


Today's Topics:

   1. Re: A fix for B2k and CONFIG_PDC_CONSOLE pb (Matthew Wilcox)
   2. Re: A fix for B2k and CONFIG_PDC_CONSOLE pb (Joel Soete)
   3. Re: A fix for B2k and CONFIG_PDC_CONSOLE pb (Joel Soete)


----------------------------------------------------------------------

Message: 1
Date: Mon, 26 Jan 2004 17:25:05 +0000
From: Matthew Wilcox <willy@debian.org>
Subject: Re: [parisc-linux] A fix for B2k and CONFIG_PDC_CONSOLE pb
To: Joel Soete <soete.joel@tiscali.be>
Cc: Christoph Plattner <christoph.plattner@gmx.at>,	Grant Grundler
	<grundler@parisc-linux.org>,
parisc-linux@lists.parisc-linux.org
Message-ID: <20040126172505.GQ11844@parcelfarce.linux.theplanet.co.uk>
Content-Type: text/plain; charset=us-ascii

On Mon, Jan 26, 2004 at 06:00:53PM +0100, Joel Soete wrote:
>  
>  	/* Bail if no console input device. */
> -	if (!PAGE0->mem_kbd.iodc_io)
> +	if ((PAGE0->mem_cons.cl_class != CL_DUPLEX) &&
!PAGE0->mem_kbd.iodc_io)
>  		return 0;
>  	
>  	/* wait for a keyboard (rs232)-input */
>  	spin_lock_irqsave(&pdc_lock, flags);
> -	real32_call(PAGE0->mem_kbd.iodc_io,
> -		    (unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN,
> -		    PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers), 
> -		    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);
> +	if (PAGE0->mem_cons.cl_class == CL_DUPLEX)

This doesn't make sense.  PAGE0->mem_cons.cl_class has to be CL_DUPLEX
otherwise the test above would have failed.  Do you perhaps mean that &&
above to be an || ?  If so, this would all read better as ...

	/* wait for a keyboard (rs232)-input */
	spin_lock_irqsave(&pdc_lock, flags);
	if (PAGE0->mem_cons.cl_class == CL_DUPLEX) {

		real32_call(PAGE0->mem_cons.iodc_io,
			    (unsigned long)PAGE0->mem_cons.hpa,
ENTRY_IO_CIN,
			    PAGE0->mem_cons.spa,
__pa(PAGE0->mem_cons.dp.layers), 
			    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1,
0);
	} else if (PAGE0->mem_kbd.iodc_io) {
		real32_call(PAGE0->mem_kbd.iodc_io,
			    (unsigned long)PAGE0->mem_kbd.hpa,
ENTRY_IO_CIN,
			    PAGE0->mem_kbd.spa,
__pa(PAGE0->mem_kbd.dp.layers), 
			    __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1,
0);
	} else {
		spin_unlock_irqrestore(&pdc_lock, flags);
		return 0;
	}

Slightly ugly to have two unlocks for the same lock, but that's better
than duplicating the test.  I haven't looked at the code, maybe we could
use a goto instead.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and
refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


------------------------------

Message: 2
Date: Mon, 26 Jan 2004 19:20:26 +0100
From: "Joel Soete" <soete.joel@tiscali.be>
Subject: Re: [parisc-linux] A fix for B2k and CONFIG_PDC_CONSOLE pb
To: "Matthew Wilcox" <willy@debian.org>
Cc: Christoph Plattner <christoph.plattner@gmx.at>,	Grant Grundler
	<grundler@parisc-linux.org>,
parisc-linux@lists.parisc-linux.org
Message-ID: <40153110000001C0@ocpmta2.freegates.net>
Content-Type: text/plain; charset="ISO-8859-1"



> +	if ((PAGE0->mem_cons.cl_class != CL_DUPLEX) &&
!PAGE0->mem_kbd.iodc_io)
>  		return 0;
Right Matthew this case is nearly impossible (may be excepted if
disconected
the usb kbd during the boot), it would means that my pdc_console is not
a
serial one (ie graphic([01])) but no usb kdb found, so in that case pdc
would
switch console automaticaly to serial.

I would just still check the case when I have an usb kbd (I would have
to
recover one) but the pdc console is setup to serial port (eg no graphic
screen
available) just for an output screen without input kbd? 

Thanks for your attention and remarks,
    Joel


------------------------------------------------------------------------
-
Tiscali ADSL: 12 mois  29,50 EUR/mois! L'Internet rapide, c'est pour
tout
le monde.
http://reg.tiscali.be/default.asp?lg=fr




------------------------------

Message: 3
Date: Mon, 26 Jan 2004 19:38:50 +0100
From: "Joel Soete" <soete.joel@tiscali.be>
Subject: Re: [parisc-linux] A fix for B2k and CONFIG_PDC_CONSOLE pb
To: "Matthew Wilcox" <willy@debian.org>
Cc: Christoph Plattner <christoph.plattner@gmx.at>,	Grant Grundler
	<grundler@parisc-linux.org>,
parisc-linux@lists.parisc-linux.org
Message-ID: <4015311000000204@ocpmta2.freegates.net>
Content-Type: text/plain; charset="ISO-8859-1"

Sorry for auto reply, but I just find back the right kdb and:

>I would just still check the case when I have an usb kbd (I would have
to
>recover one) but the pdc console is setup to serial port (e
>no graphic screen available) just for an output screen without input
kbd?


That case is also impossible, the console setup as serial_1 (eg) is
always
CL_DUPLEX :(

I will so review my patch.

Thanks for all,
    Joel


------------------------------------------------------------------------
-
Tiscali ADSL: 12 mois  29,50 EUR/mois! L'Internet rapide, c'est pour
tout
le monde.
http://reg.tiscali.be/default.asp?lg=fr




------------------------------

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<P><FONT SIZE=3D2>Send parisc-linux mailing list submissions to</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
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</P>
<BR>

<P><FONT SIZE=3D2>Today's Topics:</FONT>
</P>

<P><FONT SIZE=3D2>&nbsp;&nbsp; 1. Re: A fix for B2k and =
CONFIG_PDC_CONSOLE pb (Matthew Wilcox)</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp; 2. Re: A fix for B2k and =
CONFIG_PDC_CONSOLE pb (Joel Soete)</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp; 3. Re: A fix for B2k and =
CONFIG_PDC_CONSOLE pb (Joel Soete)</FONT>
</P>
<BR>

<P><FONT =
SIZE=3D2>---------------------------------------------------------------=
-------</FONT>
</P>

<P><FONT SIZE=3D2>Message: 1</FONT>
<BR><FONT SIZE=3D2>Date: Mon, 26 Jan 2004 17:25:05 +0000</FONT>
<BR><FONT SIZE=3D2>From: Matthew Wilcox &lt;willy@debian.org&gt;</FONT>
<BR><FONT SIZE=3D2>Subject: Re: [parisc-linux] A fix for B2k and =
CONFIG_PDC_CONSOLE pb</FONT>
<BR><FONT SIZE=3D2>To: Joel Soete &lt;soete.joel@tiscali.be&gt;</FONT>
<BR><FONT SIZE=3D2>Cc: Christoph Plattner =
&lt;christoph.plattner@gmx.at&gt;,&nbsp;&nbsp;&nbsp;&nbsp; Grant =
Grundler</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>&lt;grundler@parisc-linux.org&gt;,&nbsp;&nbsp;&nbsp; =
parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>Message-ID: =
&lt;20040126172505.GQ11844@parcelfarce.linux.theplanet.co.uk&gt;</FONT>
<BR><FONT SIZE=3D2>Content-Type: text/plain; charset=3Dus-ascii</FONT>
</P>

<P><FONT SIZE=3D2>On Mon, Jan 26, 2004 at 06:00:53PM +0100, Joel Soete =
wrote:</FONT>
<BR><FONT SIZE=3D2>&gt;&nbsp; </FONT>
<BR><FONT SIZE=3D2>&gt;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; /* Bail if no =
console input device. */</FONT>
<BR><FONT SIZE=3D2>&gt; -&nbsp;&nbsp;&nbsp;&nbsp; if =
(!PAGE0-&gt;mem_kbd.iodc_io)</FONT>
<BR><FONT SIZE=3D2>&gt; +&nbsp;&nbsp;&nbsp;&nbsp; if =
((PAGE0-&gt;mem_cons.cl_class !=3D CL_DUPLEX) &amp;&amp; =
!PAGE0-&gt;mem_kbd.iodc_io)</FONT>
<BR><FONT SIZE=3D2>&gt;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return 0;</FONT>
<BR><FONT SIZE=3D2>&gt;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; </FONT>
<BR><FONT SIZE=3D2>&gt;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; /* wait for a =
keyboard (rs232)-input */</FONT>
<BR><FONT SIZE=3D2>&gt;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; =
spin_lock_irqsave(&amp;pdc_lock, flags);</FONT>
<BR><FONT SIZE=3D2>&gt; -&nbsp;&nbsp;&nbsp;&nbsp; =
real32_call(PAGE0-&gt;mem_kbd.iodc_io,</FONT>
<BR><FONT SIZE=3D2>&gt; -&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; (unsigned =
long)PAGE0-&gt;mem_kbd.hpa, ENTRY_IO_CIN,</FONT>
<BR><FONT SIZE=3D2>&gt; -&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; =
PAGE0-&gt;mem_kbd.spa, __pa(PAGE0-&gt;mem_kbd.dp.layers), </FONT>
<BR><FONT SIZE=3D2>&gt; -&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; =
__pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0);</FONT>
<BR><FONT SIZE=3D2>&gt; +&nbsp;&nbsp;&nbsp;&nbsp; if =
(PAGE0-&gt;mem_cons.cl_class =3D=3D CL_DUPLEX)</FONT>
</P>

<P><FONT SIZE=3D2>This doesn't make sense.&nbsp; =
PAGE0-&gt;mem_cons.cl_class has to be CL_DUPLEX</FONT>
<BR><FONT SIZE=3D2>otherwise the test above would have failed.&nbsp; Do =
you perhaps mean that &amp;&amp;</FONT>
<BR><FONT SIZE=3D2>above to be an || ?&nbsp; If so, this would all read =
better as ...</FONT>
</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=3D2>/* wait =
for a keyboard (rs232)-input */</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>spin_lock_irqsave(&amp;pdc_lock, flags);</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=3D2>if =
(PAGE0-&gt;mem_cons.cl_class =3D=3D CL_DUPLEX) {</FONT>
</P>

<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>real32_call(PAGE0-&gt;mem_cons.iodc_io,</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>&nbsp;&nbsp;&nbsp; (unsigned long)PAGE0-&gt;mem_cons.hpa, =
ENTRY_IO_CIN,</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>&nbsp;&nbsp;&nbsp; PAGE0-&gt;mem_cons.spa, =
__pa(PAGE0-&gt;mem_cons.dp.layers), </FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>&nbsp;&nbsp;&nbsp; __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, =
0);</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=3D2>} else if =
(PAGE0-&gt;mem_kbd.iodc_io) {</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>real32_call(PAGE0-&gt;mem_kbd.iodc_io,</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>&nbsp;&nbsp;&nbsp; (unsigned long)PAGE0-&gt;mem_kbd.hpa, =
ENTRY_IO_CIN,</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>&nbsp;&nbsp;&nbsp; PAGE0-&gt;mem_kbd.spa, =
__pa(PAGE0-&gt;mem_kbd.dp.layers), </FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>&nbsp;&nbsp;&nbsp; __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, =
0);</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=3D2>} else =
{</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>spin_unlock_irqrestore(&amp;pdc_lock, flags);</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=3D2>return =
0;</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT SIZE=3D2>}</FONT>
</P>

<P><FONT SIZE=3D2>Slightly ugly to have two unlocks for the same lock, =
but that's better</FONT>
<BR><FONT SIZE=3D2>than duplicating the test.&nbsp; I haven't looked at =
the code, maybe we could</FONT>
<BR><FONT SIZE=3D2>use a goto instead.</FONT>
</P>

<P><FONT SIZE=3D2>-- </FONT>
<BR><FONT SIZE=3D2>&quot;Next the statesmen will invent cheap lies, =
putting the blame upon </FONT>
<BR><FONT SIZE=3D2>the nation that is attacked, and every man will be =
glad of those</FONT>
<BR><FONT SIZE=3D2>conscience-soothing falsities, and will diligently =
study them, and refuse</FONT>
<BR><FONT SIZE=3D2>to examine any refutations of them; and thus he will =
by and by convince </FONT>
<BR><FONT SIZE=3D2>himself that the war is just, and will thank God for =
the better sleep </FONT>
<BR><FONT SIZE=3D2>he enjoys after this process of grotesque =
self-deception.&quot; -- Mark Twain</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>------------------------------</FONT>
</P>

<P><FONT SIZE=3D2>Message: 2</FONT>
<BR><FONT SIZE=3D2>Date: Mon, 26 Jan 2004 19:20:26 +0100</FONT>
<BR><FONT SIZE=3D2>From: &quot;Joel Soete&quot; =
&lt;soete.joel@tiscali.be&gt;</FONT>
<BR><FONT SIZE=3D2>Subject: Re: [parisc-linux] A fix for B2k and =
CONFIG_PDC_CONSOLE pb</FONT>
<BR><FONT SIZE=3D2>To: &quot;Matthew Wilcox&quot; =
&lt;willy@debian.org&gt;</FONT>
<BR><FONT SIZE=3D2>Cc: Christoph Plattner =
&lt;christoph.plattner@gmx.at&gt;,&nbsp;&nbsp;&nbsp;&nbsp; Grant =
Grundler</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>&lt;grundler@parisc-linux.org&gt;,&nbsp;&nbsp;&nbsp; =
parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>Message-ID: =
&lt;40153110000001C0@ocpmta2.freegates.net&gt;</FONT>
<BR><FONT SIZE=3D2>Content-Type: text/plain; =
charset=3D&quot;ISO-8859-1&quot;</FONT>
</P>
<BR>
<BR>

<P><FONT SIZE=3D2>&gt; +&nbsp;&nbsp;&nbsp;&nbsp; if =
((PAGE0-&gt;mem_cons.cl_class !=3D CL_DUPLEX) &amp;&amp; =
!PAGE0-&gt;mem_kbd.iodc_io)</FONT>
<BR><FONT SIZE=3D2>&gt;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return 0;</FONT>
<BR><FONT SIZE=3D2>Right Matthew this case is nearly impossible (may be =
excepted if disconected</FONT>
<BR><FONT SIZE=3D2>the usb kbd during the boot), it would means that my =
pdc_console is not a</FONT>
<BR><FONT SIZE=3D2>serial one (ie graphic([01])) but no usb kdb found, =
so in that case pdc would</FONT>
<BR><FONT SIZE=3D2>switch console automaticaly to serial.</FONT>
</P>

<P><FONT SIZE=3D2>I would just still check the case when I have an usb =
kbd (I would have to</FONT>
<BR><FONT SIZE=3D2>recover one) but the pdc console is setup to serial =
port (eg no graphic screen</FONT>
<BR><FONT SIZE=3D2>available) just for an output screen without input =
kbd? </FONT>
</P>

<P><FONT SIZE=3D2>Thanks for your attention and remarks,</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp; Joel</FONT>
</P>
<BR>

<P><FONT =
SIZE=3D2>---------------------------------------------------------------=
----------</FONT>
<BR><FONT SIZE=3D2>Tiscali ADSL: 12 mois =E0 29,50 &#8364;/mois! =
L'Internet rapide, c'est pour tout</FONT>
<BR><FONT SIZE=3D2>le monde.</FONT>
<BR><FONT SIZE=3D2><A =
HREF=3D"http://reg.tiscali.be/default.asp?lg=3Dfr" =
TARGET=3D"_blank">http://reg.tiscali.be/default.asp?lg=3Dfr</A></FONT>
</P>
<BR>
<BR>
<BR>

<P><FONT SIZE=3D2>------------------------------</FONT>
</P>

<P><FONT SIZE=3D2>Message: 3</FONT>
<BR><FONT SIZE=3D2>Date: Mon, 26 Jan 2004 19:38:50 +0100</FONT>
<BR><FONT SIZE=3D2>From: &quot;Joel Soete&quot; =
&lt;soete.joel@tiscali.be&gt;</FONT>
<BR><FONT SIZE=3D2>Subject: Re: [parisc-linux] A fix for B2k and =
CONFIG_PDC_CONSOLE pb</FONT>
<BR><FONT SIZE=3D2>To: &quot;Matthew Wilcox&quot; =
&lt;willy@debian.org&gt;</FONT>
<BR><FONT SIZE=3D2>Cc: Christoph Plattner =
&lt;christoph.plattner@gmx.at&gt;,&nbsp;&nbsp;&nbsp;&nbsp; Grant =
Grundler</FONT>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <FONT =
SIZE=3D2>&lt;grundler@parisc-linux.org&gt;,&nbsp;&nbsp;&nbsp; =
parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2>Message-ID: =
&lt;4015311000000204@ocpmta2.freegates.net&gt;</FONT>
<BR><FONT SIZE=3D2>Content-Type: text/plain; =
charset=3D&quot;ISO-8859-1&quot;</FONT>
</P>

<P><FONT SIZE=3D2>Sorry for auto reply, but I just find back the right =
kdb and:</FONT>
</P>

<P><FONT SIZE=3D2>&gt;I would just still check the case when I have an =
usb kbd (I would have to</FONT>
<BR><FONT SIZE=3D2>&gt;recover one) but the pdc console is setup to =
serial port (e</FONT>
<BR><FONT SIZE=3D2>&gt;no graphic screen available) just for an output =
screen without input kbd?</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>That case is also impossible, the console setup as =
serial_1 (eg) is always</FONT>
<BR><FONT SIZE=3D2>CL_DUPLEX :(</FONT>
</P>

<P><FONT SIZE=3D2>I will so review my patch.</FONT>
</P>

<P><FONT SIZE=3D2>Thanks for all,</FONT>
<BR><FONT SIZE=3D2>&nbsp;&nbsp;&nbsp; Joel</FONT>
</P>
<BR>

<P><FONT =
SIZE=3D2>---------------------------------------------------------------=
----------</FONT>
<BR><FONT SIZE=3D2>Tiscali ADSL: 12 mois =E0 29,50 &#8364;/mois! =
L'Internet rapide, c'est pour tout</FONT>
<BR><FONT SIZE=3D2>le monde.</FONT>
<BR><FONT SIZE=3D2><A =
HREF=3D"http://reg.tiscali.be/default.asp?lg=3Dfr" =
TARGET=3D"_blank">http://reg.tiscali.be/default.asp?lg=3Dfr</A></FONT>
</P>
<BR>
<BR>
<BR>

<P><FONT SIZE=3D2>------------------------------</FONT>
</P>

<P><FONT =
SIZE=3D2>_______________________________________________</FONT>
<BR><FONT SIZE=3D2>parisc-linux mailing list</FONT>
<BR><FONT SIZE=3D2>parisc-linux@lists.parisc-linux.org</FONT>
<BR><FONT SIZE=3D2><A =
HREF=3D"http://lists.parisc-linux.org/mailman/listinfo/parisc-linux" =
TARGET=3D"_blank">http://lists.parisc-linux.org/mailman/listinfo/parisc-=
linux</A></FONT>
</P>
<BR>

<P><FONT SIZE=3D2>End of parisc-linux Digest, Vol 2, Issue 33</FONT>
<BR><FONT SIZE=3D2>*******************************************</FONT>
</P>

</BODY>
</HTML>
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From - Thu Nov 08 21:30:46 2018
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From: Naresh Kumar <knaresh@india.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Using PAT_IO calls for PCI config space reads and
	writes.
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Xref: news.gmane.org gmane.linux.ports.parisc:20709

Hi all,

When I was trying to bring up PA-Linux-2.4 on some of the newer boxes, I
discovered that reads/writes from the PCI config space were failing (
system crashes and hangs during the boot). Currently, reads and writes
to the config space happen through memory loads and stores to PCI config
addresses directly  (lba_cfg_[read|write]##size in lba_pci.c ). Grant
Grundler advised me to use PDC_PAT_IO calls instead, for PAT based
systems, since they are more reliable and take care of border cases on
newer systems. I have made the changes and tested them on an L-Class
system. I am posting the diff of the files I have changed. The changes
have been made to three files:

1. arch/parisc/kernel/firmware.c - Rev 1.47
2. arch/parisc/kernel/lba_pci.c - Rev 1.54
3. include/asm-parisc/pdc.h - Rev 1.48

Kindly let me know your comments:

--------------------START------------------------------------------------------------------------------

--- lba_pci.c.1.54       Fri Jan 23 15:47:41 2004
+++ lba_pci.c.modified   Fri Jan 23 15:53:15 2004
@@ -504,6 +504,13 @@ lba_rd_cfg(struct lba_device *d, u32 tok
        return(data);
 }

+#ifdef __LP64__
+#define PAT_CFG_READ(a,b,c)    pdc_pat_io_pci_cfg_read(a,b,c)
+#define PAT_CFG_WRITE(a,b,c)   pdc_pat_io_pci_cfg_write(a,b,c)
+#else
+#define PAT_CFG_READ(a,b,c)
+#define PAT_CFG_WRITE(a,b,c)
+#endif

 #define LBA_CFG_RD(size, mask) \
 static int lba_cfg_read##size (struct pci_dev *dev, int pos, u##size
*data) \
@@ -512,6 +519,21 @@ static int lba_cfg_read##size (struct pc
        u32 local_bus = (dev->bus->parent == NULL) ? 0 :
dev->bus->secondary; \
        u32 tok = LBA_CFG_TOK(local_bus,dev->devfn); \
  \
+       if (is_pdc_pat()) { \
+               int ret; \
+               tok = LBA_CFG_TOK(dev->bus->number,dev->devfn); \
+               ret = PAT_CFG_READ((tok | pos ), \
+                                        sizeof(u##size), (u##size *)
data); \
+               if ( ret == 0 ) { \
+                       DBG_CFG("%s(%s+%2x) -> 0x%x (c)\n",
__FUNCTION__, dev->slot_name, pos, *data
); \
+                       return(*data == (u##size) -1); \
+               } else { \
+                       DBG_CFG("LBA: CFG read failed: ret = %d,
d->hba.base_addr = 0x%lx\n", \
+                                               ret, d->hba.base_addr );
\
+                       return (1); \
+               } \
+       } \
+ \
 /* FIXME: B2K/C3600 workaround is always use old method... */ \
        /* if (!LBA_TR4PLUS(d) && !LBA_SKIP_PROBE(d)) */ { \
                /* original - Generate config cycle on broken elroy \
@@ -611,6 +633,11 @@ static int lba_cfg_write##size (struct p
        } \
  \
        DBG_CFG("%s(%s+%2x) = 0x%x (c)\n", __FUNCTION__, dev->slot_name,
pos, data); \
+       if (is_pdc_pat()) { \
+               tok = LBA_CFG_TOK(dev->bus->number,dev->devfn); \
+               PAT_CFG_WRITE((tok | pos ), sizeof(u##size), (u##size
*)&data); \
+               return 0; \
+       } \
        /* Basic Algorithm */ \
        LBA_CFG_TR4_ADDR_SETUP(d, tok | pos); \
        WRITE_REG##size(data, d->hba.base_addr + LBA_PCI_CFG_DATA + (pos
& mask)); \
-------------------------------------END---------------------------------------------------------------

------------------------------------START-------------------------------------------------------------

--- firmware.c.1.47      Fri Jan 23 16:57:51 2004
+++ firmware.c.modified   Tue Jan 27 12:32:43 2004
@@ -1035,6 +1035,46 @@ int pdc_pat_pd_get_addr_map(unsigned lon

        return retval;
 }
+
+/**
+ * pdc_pat_io_pci_cfg_read - Read PCI configuration space.
+ * @pci_addr: PCI configuration space address for which the read
request is being made.
+ * @pci_size: Size of read in bytes. Valid values are 1, 2, and 4.
+ * @mem_addr: Pointer to return memory buffer.
+ *
+ */
+int pdc_pat_io_pci_cfg_read(unsigned long pci_addr, int pci_size, void
*mem_addr)
+{
+       int retval;
+       spin_lock_irq(&pdc_lock);
+       retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_PCI_CONFIG_READ,
__pa(pdc_result),
+                             pci_addr, pci_size);
+       memcpy((char *)mem_addr, (char *) ((char *)pdc_result +
(sizeof(unsigned long) - pci_size))
, pci_size);
+       spin_unlock_irq(&pdc_lock);
+
+       return retval;
+}
+
+/**
+ * pdc_pat_io_pci_cfg_write - Retrieve information about memory address
ranges.
+ * @pci_addr: PCI configuration space address for which the write
request is being made.
+ * @pci_size: Size of write in bytes. Valid values are 1, 2, and 4.
+ * @value: Pointer to 1, 2, or 4 byte value in low order end of
argument to be
+ *         written to PCI Config space.
+ *
+ */
+int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, void
*value)
+{
+       int retval;
+       unsigned long *val_ptr;
+       spin_lock_irq(&pdc_lock);
+       memcpy((char *)((char *)val_ptr + (sizeof(unsigned long) -
pci_size)), (char *)value, pci_si
ze);
+       retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_PCI_CONFIG_WRITE,
pci_addr,
+                             pci_size, *val_ptr);
+       spin_unlock_irq(&pdc_lock);
+
+       return retval;
+}
 #endif /* __LP64__ */
-------------------------------------END---------------------------------------------------------------

------------------------------------START-------------------------------------------------------------

--- pdc.h.1.48   Fri Jan 23 16:57:52 2004
+++ pdc.h.modified        Fri Jan 23 12:21:46 2004
@@ -972,6 +972,8 @@ int pdc_pat_get_irt_size(unsigned long *
 int pdc_pat_get_irt(void *r_addr, unsigned long cell_num);
 int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr,
                            unsigned long count, unsigned long offset);
+int pdc_pat_io_pci_cfg_read(unsigned long pci_addr, int pci_size, void
*mem_addr);
+int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, void
*value);

 /******************************************************************** *

 *PDC_PAT_CELL[Return Cell Module] memaddr[0] conf_base_addr
-------------------------------------END---------------------------------------------------------------

A couple of questions:
1. In the definition of 'pdc_pat_io_pci_cfg_read( )' and
'pdc_pat_io_pci_cfg_write( )' above, can I  use 'cpu_to_le64( )' kind of
function instead of ordering the bytes manually in the 'memcpy( )'?
2. Can these changes be propagated to 2.6 also?

Thanks,
Naresh.



From - Thu Nov 08 21:30:46 2018
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From: Naresh Kumar <knaresh@india.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] error?
Date: Tue, 27 Jan 2004 15:16:16 +0530
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--------------84804BA52793463AE6466BA0
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Content-Transfer-Encoding: 7bit

Hi,
I noticed in the function 'linux-2.6/drivers/parisc/lba_pci.c:
lba_pat_resources( )' the following lines:

---------------------------------------------------------------
  case PAT_GMMIO:

   r = &(lba_dev->hba.gmmio_space);
   r->name   = "LBA GMMIO";
   r->start  = p->start;
   r->end    = p->end;
   r->flags  = IORESOURCE_MEM;
   r->parent = r->sibling = r->child = NULL;
   break;
   lba_dev->gmmio_base = p->start;
   break;

  case PAT_NPIOP:
    printk(KERN_WARNING MODULE_NAME
    " range[%d] : ignoring NPIOP (0x%lx)\n",
    i, p->start);
   break;
-------------------------------------------------------------------

Please note the extra lines after the 'break;'. The version of
'lba_pci.c' is 1.7. Seems to have happened due to oversight.

Thanks,
Naresh.


--------------84804BA52793463AE6466BA0
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit

<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
Hi,
<br>I noticed in the function 'linux-2.6/drivers/parisc/lba_pci.c: lba_pat_resources(
)' the following lines:
<p>---------------------------------------------------------------
<br>&nbsp; case PAT_GMMIO:
<p>&nbsp;&nbsp; r = &amp;(lba_dev->hba.gmmio_space);
<br>&nbsp;&nbsp; r->name&nbsp;&nbsp; = "LBA GMMIO";
<br>&nbsp;&nbsp; r->start&nbsp; = p->start;
<br>&nbsp;&nbsp; r->end&nbsp;&nbsp;&nbsp; = p->end;
<br>&nbsp;&nbsp; r->flags&nbsp; = IORESOURCE_MEM;
<br>&nbsp;&nbsp; r->parent = r->sibling = r->child = NULL;
<br>&nbsp;&nbsp; break;
<br><b><i>&nbsp;&nbsp; lba_dev->gmmio_base = p->start;</i></b>
<br><b><i>&nbsp;&nbsp; break;</i></b>
<p>&nbsp; case PAT_NPIOP:
<br>&nbsp;&nbsp;&nbsp; printk(KERN_WARNING MODULE_NAME
<br>&nbsp;&nbsp;&nbsp; " range[%d] : ignoring NPIOP (0x%lx)\n",
<br>&nbsp;&nbsp;&nbsp; i, p->start);
<br>&nbsp;&nbsp; break;
<br>-------------------------------------------------------------------
<p>Please note the extra lines after the 'break;'. The version of 'lba_pci.c'
is 1.7. Seems to have happened due to oversight.
<p>Thanks,
<br>Naresh.
<br>&nbsp;</html>

--------------84804BA52793463AE6466BA0--



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Subject: Re: [parisc-linux] A fix for B2k and CONFIG_PDC_CONSOLE pb
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Cc: Christoph Plattner <christoph.plattner@gmx.at>,
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	parisc-linux@lists.parisc-linux.org
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Hi all,

Sorry but don't apply this this patch, I just do more test and unfortunately
it broken sti console :(.

hmm I check  a bit more but mem_kbd.iodc_io was always zero?
and I don't notice any diference in PAGE0->mem_kbd... between a boot with
console set to graphics(0) and a boot with serial_1?

Any idea?

Thanks again,
    Joel


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] Using PAT_IO calls for PCI config space reads and
	writes.
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On Tue, Jan 27, 2004 at 02:09:38PM +0530, Naresh Kumar wrote:
> When I was trying to bring up PA-Linux-2.4 on some of the newer boxes, I
> discovered that reads/writes from the PCI config space were failing (

Naresh,
Awesome!
Thanks for pulling this together and sending it out.

...
> have been made to three files:
> 
> 1. arch/parisc/kernel/firmware.c - Rev 1.47
> 2. arch/parisc/kernel/lba_pci.c - Rev 1.54
> 3. include/asm-parisc/pdc.h - Rev 1.48
> 
> Kindly let me know your comments:
> 
> --------------------START------------------------------------------------------------------------------
> 
> --- lba_pci.c.1.54       Fri Jan 23 15:47:41 2004
> +++ lba_pci.c.modified   Fri Jan 23 15:53:15 2004

The diff should apply with:
	cd /usr/src/linux-2.4; patch -p1 < ~/diff-2.4-PAT_CFG

This patch doesn't do that or even come close.
Can you send a new patch generated with:
	cd /usr/src/linux-2.4 ; cvs diff -uNp  > ~/diff-2.4-PAT_CFG

thanks,
grant


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On Tue, Jan 27, 2004 at 03:16:16PM +0530, Naresh Kumar wrote:
>    r->end    = p->end;
>    r->flags  = IORESOURCE_MEM;
>    r->parent = r->sibling = r->child = NULL;
>    break;
>    lba_dev->gmmio_base = p->start;
>    break;
> 
>   case PAT_NPIOP:
>     printk(KERN_WARNING MODULE_NAME
>     " range[%d] : ignoring NPIOP (0x%lx)\n",
>     i, p->start);
>    break;
> -------------------------------------------------------------------
> 
> Please note the extra lines after the 'break;'. The version of
> 'lba_pci.c' is 1.7. Seems to have happened due to oversight.

Those are "extra"?
The version of code in linux-2.4 CVS has:
                case PAT_GMMIO:
                        printk(KERN_WARNING MODULE_NAME
                                " range[%d] : ignoring GMMIO (0x%lx)\n",
                                i, p->start);
                        lba_dev->gmmio_base = p->start;
                        break;

The code you quoted is missing the "case PAT_GMMIO" and printk.

thanks,
grant


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On Tue, Jan 27, 2004 at 10:22:56AM -0700, Grant Grundler wrote:
> On Tue, Jan 27, 2004 at 03:16:16PM +0530, Naresh Kumar wrote:
> >    r->end    = p->end;
> >    r->flags  = IORESOURCE_MEM;
> >    r->parent = r->sibling = r->child = NULL;
> >    break;
> >    lba_dev->gmmio_base = p->start;
> >    break;
> > 
> >   case PAT_NPIOP:
> >     printk(KERN_WARNING MODULE_NAME
> >     " range[%d] : ignoring NPIOP (0x%lx)\n",
> >     i, p->start);
> >    break;
> > -------------------------------------------------------------------
> > 
> > Please note the extra lines after the 'break;'. The version of
> > 'lba_pci.c' is 1.7. Seems to have happened due to oversight.
> 
> Those are "extra"?
> The version of code in linux-2.4 CVS has:
>                 case PAT_GMMIO:
>                         printk(KERN_WARNING MODULE_NAME
>                                 " range[%d] : ignoring GMMIO (0x%lx)\n",
>                                 i, p->start);
>                         lba_dev->gmmio_base = p->start;
>                         break;
> 
> The code you quoted is missing the "case PAT_GMMIO" and printk.

The bit he's referring to is:

>    break;
>    lba_dev->gmmio_base = p->start;
>    break;

which is clearly bogus.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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After a conversation with jejb, we've decided to pull 2.6.2-rc2 into our
tree to work on fixing some of the problems with it more effectively.
This does mean that the tree will PROBABBLY NOT WORK, MAY EAT YOUR
CAT, etc.  Unless you know what you're doing stick with the head of
tree today.  Thanks.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Tue, 2004-01-27 at 11:56, Matthew Wilcox wrote:
> After a conversation with jejb, we've decided to pull 2.6.2-rc2 into our
> tree to work on fixing some of the problems with it more effectively.
> This does mean that the tree will PROBABBLY NOT WORK, MAY EAT YOUR
> CAT, etc.  Unless you know what you're doing stick with the head of
> tree today.  Thanks.

Actually, the major issue that I can't fix is Vojtec's partial merge of
the parisc input subsystem, so if your name is Helge, this means you
need to update.

I also have been running a 2.6.2-rc2 based kernel on my PA boxes since
it was released with no ill effects (I do have to confess not having
seen the cat at all after doing the upgrade, but I'm assuming this is
because I didn't have one before...)

James




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Subject: Re: [parisc-linux] Using PAT_IO calls for PCI config space reads and
	writes.
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On Tue, Jan 27, 2004 at 02:09:38PM +0530, Naresh Kumar wrote:
> --------------------START------------------------------------------------------------------------------
> 
> --- lba_pci.c.1.54       Fri Jan 23 15:47:41 2004
> +++ lba_pci.c.modified   Fri Jan 23 15:53:15 2004
> @@ -504,6 +504,13 @@ lba_rd_cfg(struct lba_device *d, u32 tok
>         return(data);
>  }
> 
> +#ifdef __LP64__
> +#define PAT_CFG_READ(a,b,c)    pdc_pat_io_pci_cfg_read(a,b,c)
> +#define PAT_CFG_WRITE(a,b,c)   pdc_pat_io_pci_cfg_write(a,b,c)
> +#else
> +#define PAT_CFG_READ(a,b,c)
> +#define PAT_CFG_WRITE(a,b,c)
> +#endif

Hmm.  Why the abstraction?  The normal way to do this is to define dummy
functions when they can't be called.  See include/asm-parisc/pdc.h:

#else /* !__LP64__ */
/* No PAT support for 32-bit kernels...sorry */
#define pdc_pat_get_irt_size(num_entries, cell_numn)    PDC_BAD_PROC
#define pdc_pat_get_irt(r_addr, cell_num)       PDC_BAD_PROC

I actually think the right way to handle this is probably like this:

#define pat_cfg_addr(bus, devfn, addr) ((bus << 16) | (devfn << 8) | addr)

static int pat_cfg_read(struct pci_bus *bus, unsigned int devfn, int pos, int size, u32 *data)
{
	int tok = pat_cfg_addr(bus->number, devfn, pos);
	int ret = pdc_pat_io_pci_cfg_read(tok, size, &data);
	return (ret == SUCCESS);
}

... same for write here ...

static struct pci_ops pat_cfg_ops = {
	.read = pat_cfg_read,
	.write = pat_cfg_write,
};

And then choose whether to use pat_cfg_ops or lba_cfg_ops at probe time.

> +/**
> + * pdc_pat_io_pci_cfg_read - Read PCI configuration space.
> + * @pci_addr: PCI configuration space address for which the read
> request is being made.
> + * @pci_size: Size of read in bytes. Valid values are 1, 2, and 4.
> + * @mem_addr: Pointer to return memory buffer.
> + *
> + */
> +int pdc_pat_io_pci_cfg_read(unsigned long pci_addr, int pci_size, void
> *mem_addr)
> +{
> +       int retval;
> +       spin_lock_irq(&pdc_lock);
> +       retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_PCI_CONFIG_READ,
> __pa(pdc_result),
> +                             pci_addr, pci_size);
> +       memcpy((char *)mem_addr, (char *) ((char *)pdc_result +
> (sizeof(unsigned long) - pci_size))
> , pci_size);
> +       spin_unlock_irq(&pdc_lock);
> +
> +       return retval;
> +}

I don't see why you need a memcpy, the data should be sufficiently aligned.
Casting to the right data type should be enough.

> A couple of questions:
> 1. In the definition of 'pdc_pat_io_pci_cfg_read( )' and
> 'pdc_pat_io_pci_cfg_write( )' above, can I  use 'cpu_to_le64( )' kind of
> function instead of ordering the bytes manually in the 'memcpy( )'?
> 2. Can these changes be propagated to 2.6 also?

You should be developing against 2.6 in the first place.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


From - Thu Nov 08 21:30:47 2018
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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: [parisc-linux] KGDB parisc port
Date: Tue, 27 Jan 2004 20:08:58 +0100
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Hi pa-ckers,

Considering the very little interest raised by the parisc kgdb port, i'm
sad to announce that i'm giving up maintaining it.

If anyone is interested in taking over the work, please let me know.

FYI, see http://www.pateam.org/kgdb.html

Greetings,


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/


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On Tue, Jan 27, 2004 at 06:43:45PM +0000, Matthew Wilcox wrote:
> > 2. Can these changes be propagated to 2.6 also?
> 
> You should be developing against 2.6 in the first place.

Should - but they don't about 2.6.  At least not yet.
I'll deal with forward porting the changes once your comments are integrated.
Naresh, can you take care of that and resubmit?

thanks,
grant


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On Tue, Jan 27, 2004 at 12:22:12PM -0700, Grant Grundler wrote:
> On Tue, Jan 27, 2004 at 06:43:45PM +0000, Matthew Wilcox wrote:
> > > 2. Can these changes be propagated to 2.6 also?
> > 
> > You should be developing against 2.6 in the first place.
> 
> Should - but they don't about 2.6.  At least not yet.
> I'll deal with forward porting the changes once your comments are integrated.
> Naresh, can you take care of that and resubmit?

Their development would actually go a lot easier if they worked on 2.6.
Compare lba_pci.c between 2.4 and 2.6 -- the new one is a *lot* easier
to work on.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Tue, Jan 27, 2004 at 10:12:47PM -0700, Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	carlos	04/01/27 22:12:47
> 
> Modified files:
> 	kernel         : signal.c compat_signal.c 
> 	include/linux  : compat_siginfo.h compat.h 
> 	include/asm-parisc: compat_ucontext.h compat_rt_sigframe.h 
> 	include/asm-generic: compat_signal.h 
> 
> Log message:
> Update the compat_siginfo_t framework.
> 

This patch is an update based on feedback from the linux-arch community.
Notably we add is_compat_task() and let the compiler optimize out the
code when CONFIG_COMPAT is not set. It also completes the changeover to
using include/linux/compat_siginfo.h instead of the asm-generic version,
which required that all arches add a compat_siginfo.h to their asm
directory.


Index: kernel/signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/kernel/signal.c,v
retrieving revision 1.10
retrieving revision 1.11
diff -u -p -r1.10 -r1.11
--- kernel/signal.c	11 Dec 2003 00:48:55 -0000	1.10
+++ kernel/signal.c	28 Jan 2004 05:12:46 -0000	1.11
@@ -24,15 +24,11 @@
 #include <linux/binfmts.h>
 #include <linux/security.h>
 #include <linux/ptrace.h>
+#include <linux/compat_siginfo.h>
 #include <asm/param.h>
 #include <asm/uaccess.h>
 #include <asm/siginfo.h>
 
-#ifdef CONFIG_COMPAT
-#include <linux/personality.h>
-#include <asm/compat_siginfo.h>
-#endif
-
 /*
  * SLAB caches for signal bits.
  */
@@ -2011,12 +2007,11 @@ int copy_siginfo_to_user(siginfo_t __use
 	if (from->si_code < 0)
 		return __copy_to_user(to, from, sizeof(siginfo_t))
 			? -EFAULT : 0;
-# ifdef CONFIG_COMPAT
+	
 	/* Use compat_siginfo_t with 32-bit signals */
-	if(personality(current->personality) == PER_LINUX32){
+	if(is_compat_task(current)){
 		return compat_copy_siginfo_to_user((compat_siginfo_t __user *)to,from);
 	}
-# endif
 	
 	/*
 	 * If you change siginfo_t structure, please be sure
Index: kernel/compat_signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/kernel/compat_signal.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -p -r1.1 -r1.2
--- kernel/compat_signal.c	10 Dec 2003 22:37:50 -0000	1.1
+++ kernel/compat_signal.c	28 Jan 2004 05:12:46 -0000	1.2
@@ -4,7 +4,7 @@
  *  2003-12-20  Carlos O'Donell
  *              Copied linux/kernel/compat_signal.c (copy_siginfo_to_user)
  *              and modified to use compat_siginfo_t for thunking down to
- *              32-bit userspace with an ELF64 kernel.
+ *              32-bit userspace from a 64-bit kernel.
  *              
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,14 +19,12 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
  *
  */
 
-/*#define __KERNEL_SYSCALLS__*/
-
+#include <linux/compat_siginfo.h>
 #include <asm/errno.h>
-#include <asm/compat_siginfo.h>
 #include <asm/uaccess.h>
 #include <asm/siginfo.h>
 
@@ -41,8 +39,8 @@ int compat_copy_siginfo_to_user(compat_s
 		return -EFAULT;
 	
 	/*
-	 * If you change siginfo_t structure, please be sure
-	 * this code is fixed accordingly.
+	 * If you change compat_siginfo_t structure *or* siginfo_t, 
+	 * please be sure this code is fixed accordingly.
 	 * It should never copy any pad contained in the structure
 	 * to avoid security leaks, but must copy the generic
 	 * 3 ints plus the relevant union member.
@@ -86,7 +84,7 @@ int compat_copy_siginfo_to_user(compat_s
 	case __SI_FAULT:
 		compat_from.si_addr = (compat_uptr_t)((u64)(from->si_addr) & 0xffffffffUL);
 		err |= __put_user(compat_from.si_addr, &to->si_addr);
-#ifdef __ARCH_SI_TRAPNO
+#ifdef __ARCH_SI_COMPAT_TRAPNO
 		compat_from.si_trapno = (compat_int_t)(from->si_addr);
 		err |= __put_user(compat_from.si_trapno, &to->si_trapno);
 #endif
Index: include/linux/compat_siginfo.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/linux/compat_siginfo.h,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -p -r1.1 -r1.2
--- include/linux/compat_siginfo.h	26 Jan 2004 21:09:14 -0000	1.1
+++ include/linux/compat_siginfo.h	28 Jan 2004 05:12:46 -0000	1.2
@@ -6,18 +6,18 @@
 
 #ifndef CONFIG_COMPAT
 
-/* No compatibility layer required, add empty definitions
-   for the compiler */
+/* No compatibility layer required, add empty definitions for the compiler */
 
 typedef struct compat_siginfo{
 } compat_siginfo_t;
 
 static inline int compat_copy_siginfo_to_user(void *x, unsigned long y)
 {
-	return 0;
+	return -1;
 }
 
 #else
+
 #include <linux/compiler.h>
 #include <asm/siginfo.h>
 
@@ -166,3 +166,4 @@ extern int compat_copy_siginfo_to_user(c
 
 #endif /* CONFIG_COMPAT */
 #endif /* _ASM_GENERIC_COMPAT_SIGINFO_H */
+
Index: include/linux/compat.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/linux/compat.h,v
retrieving revision 1.6
retrieving revision 1.7
diff -u -p -r1.6 -r1.7
--- include/linux/compat.h	27 Jan 2004 22:02:36 -0000	1.6
+++ include/linux/compat.h	28 Jan 2004 05:12:46 -0000	1.7
@@ -6,15 +6,26 @@
  */
 #include <linux/config.h>
 
-#ifdef CONFIG_COMPAT
+#ifndef CONFIG_COMPAT
+
+/* Non-native task requiring compat... doesn't exist */
+#define is_compat_task(x) 0
+
+#else
 
 #include <linux/stat.h>
 #include <linux/param.h>	/* for HZ */
+#include <linux/personality.h>  /* Conditional process compat */
 #include <asm/compat.h>
 
 #define compat_jiffies_to_clock_t(x)	\
 		(((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
 
+/* Non-native task requiring compat */
+#ifndef HAVE_ARCH_IS_COMPAT_TASK
+#define is_compat_task(x) (x->personality == PER_LINUX32)
+#endif
+	
 struct compat_itimerspec { 
 	struct compat_timespec it_interval;
 	struct compat_timespec it_value;
Index: include/asm-parisc/compat_ucontext.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/compat_ucontext.h,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -p -r1.1 -r1.2
--- include/asm-parisc/compat_ucontext.h	10 Dec 2003 22:37:10 -0000	1.1
+++ include/asm-parisc/compat_ucontext.h	28 Jan 2004 05:12:47 -0000	1.2
@@ -4,7 +4,7 @@
 #include<linux/compat.h>
 #include<asm/compat_signal.h>
 
-/* ELF32 ucontext as seen from an ELF64 kernel */
+/* 32-bit ucontext as seen from an 64-bit kernel */
 struct compat_ucontext {
 	compat_uint_t uc_flags;
 	compat_uptr_t uc_link;
Index: include/asm-parisc/compat_rt_sigframe.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/compat_rt_sigframe.h,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -p -r1.1 -r1.2
--- include/asm-parisc/compat_rt_sigframe.h	10 Dec 2003 22:36:09 -0000	1.1
+++ include/asm-parisc/compat_rt_sigframe.h	28 Jan 2004 05:12:47 -0000	1.2
@@ -1,5 +1,5 @@
 #include<linux/compat.h>
-#include<asm/compat_siginfo.h>
+#include<linux/compat_siginfo.h>
 #include<asm/compat_ucontext.h>
 
 #ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H
Index: include/asm-generic/compat_signal.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-generic/compat_signal.h,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -p -r1.1 -r1.2
--- include/asm-generic/compat_signal.h	10 Dec 2003 22:35:48 -0000	1.1
+++ include/asm-generic/compat_signal.h	28 Jan 2004 05:12:47 -0000	1.2
@@ -1,8 +1,8 @@
 #ifndef _ASM_GENERIC_COMPAT_SIGNAL_H
 #define _ASM_GENERIC_COMPAT_SIGNAL_H
 
-# ifndef __ASSEMBLY__
-#  include <linux/types.h>
+#ifndef __ASSEMBLY__
+#include <linux/compat.h>
 
 typedef compat_uptr_t compat_sighandler_t;
 
@@ -12,8 +12,6 @@ typedef struct compat_sigaltstack {
 	compat_size_t ss_size;
 } compat_stack_t;
 
-#  ifdef __KERNEL__

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On Tue, Jan 27, 2004 at 10:14:15PM -0700, Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	carlos	04/01/27 22:14:15
> 
> Modified files:
> 	include/asm-parisc: posix_types.h 
> 
> Log message:
> __kernel_time_t should be of type long on 32-bit systems, it used to be int
> 

The generic code expects this to be of type long on all builds, even
32-bit. This might cause other warnings in parisc drivers that have
gotten used to having time_t as int.

Index: include/asm-parisc/posix_types.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/posix_types.h,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -p -r1.2 -r1.3
--- include/asm-parisc/posix_types.h	28 Sep 2003 04:06:17 -0000	1.2
+++ include/asm-parisc/posix_types.h	28 Jan 2004 05:14:14 -0000	1.3
@@ -29,7 +29,7 @@ typedef long			__kernel_time_t;
 typedef unsigned int		__kernel_size_t;
 typedef int			__kernel_ssize_t;
 typedef int			__kernel_ptrdiff_t;
-typedef int			__kernel_time_t;
+typedef long			__kernel_time_t;
 #endif
 typedef char *			__kernel_caddr_t;
 


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Grant,
I was referring to linux-2.6. There are two 'break' statements in 'case
PAT_GMMIO:'. Removing the first 'break' will do.
Regards,
Naresh.


> Those are "extra"?
> The version of code in linux-2.4 CVS has:
>                 case PAT_GMMIO:
>                         printk(KERN_WARNING MODULE_NAME
>                                 " range[%d] : ignoring GMMIO (0x%lx)\n",
>                                 i, p->start);
>                         lba_dev->gmmio_base = p->start;
>                         break;
>
> The code you quoted is missing the "case PAT_GMMIO" and printk.
>
> thanks,
> grant



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Subject: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 carlos
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Hi all,

This boot fine on the b180 (32bit kernel), the b2k (32bit kernel only even
with CONFIG_PA20 is Ok but failed with 64bit kernel?) and N4000-55 (same
64bit kernel  build with my own kgcc-3.3.3 :)).

Any way this last test set aside any pb with _my_ gcc compiler :).

Congratulation to all,
    Joel

>-- Original Message --
>To: parisc-linux-cvs@lists.parisc-linux.org
>Date: Tue, 27 Jan 2004 23:05:16 -0700 (MST)
>From: carlos@parisc-linux.org (Carlos O'Donell)
>Reply-To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux-cvs] linux-2.6 carlos
>
>
>CVSROOT:	/var/cvs
Module name:	linux-2.6
Changes by:	carlos	04/01/27 23:05:15

Modified files:
	.              : Makefile 

Log message:
Builds and boots on my A500 (64-bit), builds in 32-bit mode aswell (e.g.
no CONFIG_COMPAT)

_____________
>_________________________________
parisc-linux-cvs mailing list
parisc-linux-cvs@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux-cvs



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From: Heikki Hannikainen <hessu@hes.iki.fi>
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Subject: [parisc-linux] K380 partial success, the state of the port?
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  Hi,

  I'm working on a K380 system with 4*240 MHz PA8200 CPUs, 2G of memory. I
initially installed it with the palinux-2.4.21-pa6-20030718-netinst.iso
netinstall CD images. I was amazed how smoothly it went! I've run the
alpha and sparc ports in the past on a bit less powerful hardware. I have
a couple of questions:

- the box seems awfully slow when compared to a similar HP-UX 11 box.
With 2.4.21-32 uniprocessor kernel 'time /bin/true' takes about 0.07s,
'time time /bin/true' takes 0.12s. 'time strace /bin/true' takes a
whopping 0.822s, almost all of which is spent in the system:

real    0m0.822s
user    0m0.010s
sys     0m0.790s

- with an SMP kernel it's much slower. 'time /bin/true' says:

real    0m0.420s
user    0m0.010s
sys     0m0.400s

'time time /bin/true' takes 0.65s, 'time strace /bin/true' takes 2.8
allowing me to read the output while it's running. I compiled the SMP
kernel myself, 2.4.24-pa0 from the CVS on 27.1.2004. On CPU bound tasks
it's ok, but fork/exec/ptrace seems very slow.

  Is the parisc port supposed to be this slow at it's current state, or is
this a problem which is specific to my setup?

- Should I go to the 2.6 tree? I compiled it from the CVS (to get the
tulip driver working) but the SCSI failed:

Linux version 2.6.1-pa10 (root@soul) (gcc version 3.0.4) #2 SMP Tue Jan 27

zalon_probe: Zalon vers field is 0x1, IRQ 37
ncr53c720-0: rev 0xf irq 37
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3e
Using anticipatory io scheduler
scsi: Device offlined - not ready after error recovery: host 0 channel 0
id 0 l

  Is this a known problem?

  Thank you for your efforts!

  - Hessu



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Hello,

>- Should I go to the 2.6 tree? I compiled it from the CVS (to get the
>tulip driver working but the SCSI failed:
>
>Linux version 2.6.1-pa10 (root@soul) (gcc version 3.0.4) #2 SMP Tue Jan
27


Afaik, 2.6 is not yet smp ready. Could you re-test it by just removing SMP
(there are already a lot of improvement in 2.6  :) )

hth,
    Joel

PS: I am happy that boot fine on the N I am testing 

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From: Randolph Chung <tausq@debian.org>
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>   Is the parisc port supposed to be this slow at it's current state, or is
> this a problem which is specific to my setup?

fork/exec is very slow on parisc right now. in other areas though
performance is not too shabby. Ryan posted lmbench results to the list
recently. Check the archive for details.

> - Should I go to the 2.6 tree? I compiled it from the CVS (to get the
> tulip driver working) but the SCSI failed:

Yes, you should go to 2.6, but as Joel pointed out SMP is not yet
working correctly.

We have a few scsi gurus on the parisc list so they can address the scsi
issues :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] B2k and CONFIG_PDC_CONSOLE progress
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Hi pa,

Well, i made some small progress: i reach to figure out that PAGE0 status
changes between pdc_console_init() and pdc_io_getc():
@@ -1,4 +1,5 @@
- palx2000 kernel: pdc_console_init_force() would set a CL_DUP.
+ palx2000 kernel: mem_kbd != mem_cons.
+ palx2000 kernel: pdc_iodc_getc() would get from a CL_DUP.
  palx2000 kernel: PAGE0->mem_cons address: 100003a0.
  palx2000 kernel: PAGE0->mem_cons size: 48.
  palx2000 kernel: PAGE0->mem_boot address: 100003d0.
@@ -10,9 +11,9 @@
  palx2000 kernel: PAGE0->mem_kbd.dp.flags: 0.
  palx2000 kernel: PAGE0->mem_cons.dp.bc[0]: 255.
  palx2000 kernel: PAGE0->mem_cons.dp.bc[1]: 255.
- palx2000 kernel: PAGE0->mem_cons.dp.bc[2]: 10.
- palx2000 kernel: PAGE0->mem_cons.dp.bc[4]: 14.
- palx2000 kernel: PAGE0->mem_cons.dp.bc[5]: 1.
+ palx2000 kernel: PAGE0->mem_cons.dp.bc[2]: 255.
+ palx2000 kernel: PAGE0->mem_cons.dp.bc[3]: 10.
+ palx2000 kernel: PAGE0->mem_cons.dp.bc[4]: 1.
  palx2000 kernel: PAGE0->mem_boot.dp.bc[0]: 255.
  palx2000 kernel: PAGE0->mem_boot.dp.bc[1]: 255.
  palx2000 kernel: PAGE0->mem_boot.dp.bc[2]: 255.
@@ -21,26 +22,27 @@
  palx2000 kernel: PAGE0->mem_kbd.dp.bc[0]: 255.
  palx2000 kernel: PAGE0->mem_kbd.dp.bc[1]: 255.
  palx2000 kernel: PAGE0->mem_kbd.dp.bc[2]: 255.
- palx2000 kernel: PAGE0->mem_kbd.dp.bc[3]: 255.
- palx2000 kernel: PAGE0->mem_kbd.dp.bc[4]: 255.
- palx2000 kernel: PAGE0->mem_kbd.dp.bc[5]: 255.
- palx2000 kernel: PAGE0->mem_cons.dp.mod: 1.
+ palx2000 kernel: PAGE0->mem_kbd.dp.bc[3]: 10.
+ palx2000 kernel: PAGE0->mem_kbd.dp.bc[5]: 14.
+ palx2000 kernel: PAGE0->mem_cons.dp.mod: 0.
  palx2000 kernel: PAGE0->mem_boot.dp.mod: 0.
- palx2000 kernel: PAGE0->mem_kbd.dp.mod: 255.
- palx2000 kernel: PAGE0->mem_cons.dp.layers[0]: 00000283.
+ palx2000 kernel: PAGE0->mem_kbd.dp.mod: 2.
+ palx2000 kernel: PAGE0->mem_cons.dp.layers[0]: 00000101.
  palx2000 kernel: PAGE0->mem_boot.dp.layers[0]: 00000005.
- palx2000 kernel: PAGE0->mem_cons.hpa: fee003f8.
+ palx2000 kernel: PAGE0->mem_cons.hpa: fb000000.
  palx2000 kernel: PAGE0->mem_boot.hpa: f4002000.
- palx2000 kernel: PAGE0->mem_kbd.hpa: 00000000.
+ palx2000 kernel: PAGE0->mem_kbd.hpa: f4004000.
  palx2000 kernel: PAGE0->mem_cons.spa: 00000000.
  palx2000 kernel: PAGE0->mem_boot.spa: 00000000.
  palx2000 kernel: PAGE0->mem_kbd.spa: 00000000.
  palx2000 kernel: PAGE0->mem_cons.iodc_io: 0000e000.
  palx2000 kernel: PAGE0->mem_boot.iodc_io: 00019000.
- palx2000 kernel: PAGE0->mem_kbd.iodc_io: 00000000.
+ palx2000 kernel: PAGE0->mem_kbd.iodc_io: 00013000.
  palx2000 kernel: PAGE0->mem_cons.pad: 0.
  palx2000 kernel: PAGE0->mem_boot.pad: 0.
  palx2000 kernel: PAGE0->mem_kbd.pad: 0.
- palx2000 kernel: PAGE0->mem_cons.cl_class: 7.
+ palx2000 kernel: PAGE0->mem_cons.cl_class: 9.
  palx2000 kernel: PAGE0->mem_boot.cl_class: 1.

Is somebody have a small idea when this change could occurs?

Thanks,
   Joel

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Subject: [parisc-linux] fyi: parted now creates parisc boot partitions
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As of parted-1.6.6-7 from your debian mirror you can now use it to set a
partition type to 'F0' for palo use.  This is done via "set N palo on",
where N is the partition number.  Thanks to Sven Luther for accepting my
patch and uploading.

Richard



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On Wed, Jan 28, 2004 at 03:00:48PM +0100, Joel Soete wrote:
> Hi all,
> 
> This boot fine on the b180 (32bit kernel), the b2k (32bit kernel only even
> with CONFIG_PA20 is Ok but failed with 64bit kernel?) and N4000-55 (same
> 64bit kernel  build with my own kgcc-3.3.3 :)).
> 
> Any way this last test set aside any pb with _my_ gcc compiler :).

Undo the patch, rebuild, and see if it still fails?
Could you explain more about the failure?

c.


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On Wed, Jan 28, 2004 at 09:25:24PM +0000, Richard Hirst wrote:
> As of parted-1.6.6-7 from your debian mirror you can now use it to set a
> partition type to 'F0' for palo use.  This is done via "set N palo on",
> where N is the partition number.  Thanks to Sven Luther for accepting my
> patch and uploading.

Cool!

c.



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>> Any way this last test set aside any pb with _my_ gcc compiler :).
>
>Undo the patch, rebuild, and see if it still fails?

I don't think it has any relation with any patch: since my first test of
2.6 I always reach to boot a 32bit kernel but never a 64bit kernel on this
b2k (that is why I hesitate a long time before trying this on the N because
suspecting a compiler pb)

>Could you explain more about the failure?

Well the pb is easy to easy:
the last messages the palo banner advising: "... If this is the last message
you see ..." then the kernel do very early a hpmc. I so try to get piminfo
but everything seems to point out of kernel :(. I so try to add some printk()
just at begining of init() (in init/main.c just before lock_kernel()) but
it seems to not even reach this point (but not quiet sure that it is a relevant
place for printk() ). 
So I suspect a pb in very early boot into head64.S or vmlinux.lds.S but here
I could insert printk() ?

Any idea?

Thanks for attention,
    Joel



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>>Could you explain more about the failure?
>
>Well the pb is easy to decribe:
>the last messages the palo banner advising: "... If this is the last message
>you see ..." then the kernel do very early a hpmc. I so try to get piminfo
>but everything seems to point out of kernel :(. I so try to add some printk()
>just at begining of init() (in init/main.c just before lock_kernel()) but
>it seems to not even reach this point (but not quiet sure that it is a relevant
>place for printk() ). 

seems Ok :)

>So I suspect a pb in very early boot into head64.S or vmlinux.lds.S but
here
>I could insert printk() ?

Sorry for auto-reply but my suspicious was right: I just revert this patch:
===================================================================
RCS file: /var/lib/cvs/linux-2.5/arch/parisc/kernel/head64.S,v
retrieving revision 1.1.2.1
retrieving revision 1.1.2.2
diff -u -r1.1.2.1 -r1.1.2.2
--- linux-2.5/arch/parisc/kernel/head64.S	2002/12/24 22:15:01	1.1.2.1
+++ linux-2.5/arch/parisc/kernel/head64.S	2003/01/14 13:08:03	1.1.2.2
@@ -176,7 +176,9 @@
 #endif /* CONFIG_SMP */
 
 	/* Save the rfi target address */
-	std		%r11,  TASK_PT_GR11-TASK_SZ_ALGN(%sp)
+	ldo		-THREAD_SZ_ALGN(%sp), %r1
+	ldd		TI_TASK(%r1), %r1
+	std		%r11,  TASK_PT_GR11(%r1)
 
 #ifndef CONFIG_PDC_NARROW
 	/* Switch to wide mode; Superdome doesn't support narrow PDC
@@ -206,7 +208,9 @@
 
 stext_pdc_ret:
 	/* restore rfi target address*/
-	ldd		TASK_PT_GR11-TASK_SZ_ALGN(%sp), %r11
+	ldo		-THREAD_SZ_ALGN(%sp), %r1
+	ldd		TI_TASK(%r1), %r1
+	ldd		TASK_PT_GR11(%r1), %r11
 
 	/* PARANOID: clear user scratch/user space SR's */
 	mtsp	%r0,%sr0
@@ -310,7 +314,7 @@
 	load32		PA(smp_init_current_idle_task),%sp
 	ldd		0(%sp),%sp	/* load task address */
 	mtctl           %sp,%cr30       /* store in cr30 */
-	ldo             TASK_SZ_ALGN(%sp),%sp
+	ldo             THREAD_SZ_ALGN(%sp),%sp
 	tophys_r1       %sp
 
 	/* point CPU to kernel page tables */
=========><=========

and now it boots well but I am very not able to fix it correctly :(.

hth.

Thanks again,
    Joel


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From: Heikki Hannikainen <hessu@hes.iki.fi>
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Subject: Re: [parisc-linux] K380 partial success, the state of the port?
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On Wed, 28 Jan 2004, Randolph Chung wrote:

> > - Should I go to the 2.6 tree? I compiled it from the CVS (to get the
> > tulip driver working) but the SCSI failed:
>
> Yes, you should go to 2.6, but as Joel pointed out SMP is not yet
> working correctly.
>
> We have a few scsi gurus on the parisc list so they can address the scsi
> issues :)

  Ok! I compiled the same 2.6.1-pa10 from tuesday's CVS, uniprocessor
32bit, and it almost booted. The SCSI driver didn't barf, but it crashed
just before init started. Full console log at:
http://he.fi/misc/hppa/2.6.1-pa10-32-uni.crash1.consolelog
I'm not a kernel hacker, but I'd be happy to try any debugging or
testing code/patches if someone has an idea why this is failing.

EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 468k freed

Stack Dump:
...
Kernel addresses on the stack:
 [<10231f64>] elv_next_request+0x20/0x12c
 [<10103f38>] parisc_terminate+0x60/0xb0
 [<101041d4>] handle_interruption+0x24c/0x598
 [<10121d20>] io_schedule+0x40/0x6c
 [<1015f004>] __wait_on_buffer+0xbc/0x118
 [<10109088>] intr_check_sig+0x0/0xc
 [<102355a8>] submit_bio+0x80/0xd8
 [<102137a0>] init_dev+0x64/0x4d0
 [<10213798>] init_dev+0x5c/0x4d0
 [<10214328>] tty_open+0x88/0x3cc
 [<1016d3ac>] link_path_walk+0x788/0xa40
 [<10168008>] chrdev_open+0xd0/0x180
 [<1015e914>] get_empty_filp+0x68/0x118
 [<1015ceb4>] dentry_open+0x154/0x224
 [<1015cd40>] filp_open+0x4c/0x6c
 [<1015d288>] sys_open+0x54/0xa8
 [<10100204>] init+0x54/0xc8
 [<10108c5c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=15 regs=8ffa8380 (Addr=f305f306)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 10398010 10213798 10387178
r04-07  1039b42c 1039b42c 8fb7b840 00500001
r08-11  00000000 1045e99c 000f41fa 00000000
r12-15  1038c1c8 00000000 1038f810 1045e810
r16-19  f0001898 8ffa828c f000011c f305f306
r20-23  00000000 00000000 1010fdf0 00000002
r24-27  8ffa828c 00000000 10398730 10370010
r28-31  1039b42c 00000005 8ffa8380 102145d0
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1021379c 102137a0
 IIR: 0d130083    ISR: 00000000  IOR: f305f306
 CPU:        0   CR30: 8ffa8000 CR31: 103d4000
 ORIG_R28: 8ffa84c0
 IAOQ[0]: init_dev+0x60/0x4d0
 IAOQ[1]: init_dev+0x64/0x4d0
 RP(r2): init_dev+0x5c/0x4d0


  - Hessu



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From: Ryan Bradetich <rbradetich@uswest.net>
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Subject: Re: [parisc-linux] K380 partial success, the state of the port?
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I looked through your log because this crash looked very familar to me
:(

> Kernel command line: root=/dev/sda2 HOME=/ console=ttyB0
palo_kernel=2/boot/vmlinux

Good you have palo set for the Serial Mux.

But I do not see the Serial Mux in the console log.  Can you verify that
the CONFIG_SERIAL_MUX and CONFIG_SERLIAL_MUX_CONSOLE are compiled into
your kernel?

I would bet this is your problem just from the dump output ... and
futher confirmed by lack of serial mux in your boot log.

Should look something like:

Serial mux driver (8 ports) Revision: 0.2
ttyB0 at MMIO 0xfff78800 (polling) is a Mux
.
.
.

Thanks,

- Ryan


On Thu, 2004-01-29 at 03:03, Heikki Hannikainen wrote:
> On Wed, 28 Jan 2004, Randolph Chung wrote:
> 
> > > - Should I go to the 2.6 tree? I compiled it from the CVS (to get the
> > > tulip driver working) but the SCSI failed:
> >
> > Yes, you should go to 2.6, but as Joel pointed out SMP is not yet
> > working correctly.
> >
> > We have a few scsi gurus on the parisc list so they can address the scsi
> > issues :)
> 
>   Ok! I compiled the same 2.6.1-pa10 from tuesday's CVS, uniprocessor
> 32bit, and it almost booted. The SCSI driver didn't barf, but it crashed
> just before init started. Full console log at:
> http://he.fi/misc/hppa/2.6.1-pa10-32-uni.crash1.consolelog
> I'm not a kernel hacker, but I'd be happy to try any debugging or
> testing code/patches if someone has an idea why this is failing.
> 
> EXT3-fs: mounted filesystem with ordered data mode.
> VFS: Mounted root (ext3 filesystem) readonly.
> Freeing unused kernel memory: 468k freed
> 
> Stack Dump:
> ...
> Kernel addresses on the stack:
>  [<10231f64>] elv_next_request+0x20/0x12c
>  [<10103f38>] parisc_terminate+0x60/0xb0
>  [<101041d4>] handle_interruption+0x24c/0x598
>  [<10121d20>] io_schedule+0x40/0x6c
>  [<1015f004>] __wait_on_buffer+0xbc/0x118
>  [<10109088>] intr_check_sig+0x0/0xc
>  [<102355a8>] submit_bio+0x80/0xd8
>  [<102137a0>] init_dev+0x64/0x4d0
>  [<10213798>] init_dev+0x5c/0x4d0
>  [<10214328>] tty_open+0x88/0x3cc
>  [<1016d3ac>] link_path_walk+0x788/0xa40
>  [<10168008>] chrdev_open+0xd0/0x180
>  [<1015e914>] get_empty_filp+0x68/0x118
>  [<1015ceb4>] dentry_open+0x154/0x224
>  [<1015cd40>] filp_open+0x4c/0x6c
>  [<1015d288>] sys_open+0x54/0xa8
>  [<10100204>] init+0x54/0xc8
>  [<10108c5c>] ret_from_kernel_thread+0x1c/0x24
> 
> 
> Kernel Fault: Code=15 regs=8ffa8380 (Addr=f305f306)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111 Not tainted
> r00-03  00000000 10398010 10213798 10387178
> r04-07  1039b42c 1039b42c 8fb7b840 00500001
> r08-11  00000000 1045e99c 000f41fa 00000000
> r12-15  1038c1c8 00000000 1038f810 1045e810
> r16-19  f0001898 8ffa828c f000011c f305f306
> r20-23  00000000 00000000 1010fdf0 00000002
> r24-27  8ffa828c 00000000 10398730 10370010
> r28-31  1039b42c 00000005 8ffa8380 102145d0
> sr0-3   00000000 00000000 00000000 00000000
> sr4-7   00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 1021379c 102137a0
>  IIR: 0d130083    ISR: 00000000  IOR: f305f306
>  CPU:        0   CR30: 8ffa8000 CR31: 103d4000
>  ORIG_R28: 8ffa84c0
>  IAOQ[0]: init_dev+0x60/0x4d0
>  IAOQ[1]: init_dev+0x64/0x4d0
>  RP(r2): init_dev+0x5c/0x4d0
> 
> 
>   - Hessu
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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----55301771731421591--




From - Thu Nov 08 21:30:48 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] sti & b2k: doesn't work?
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Xref: news.gmane.org gmane.linux.ports.parisc:20737

Hi pa,

Looking to solve the pb I encounter with b2k and pdc_console, I unfortunately
figure out that sti console doesn't work at all on this b2k model.

To be honnest, as the builtin gfx card is not (yet and may be never) supported,
I only use serial console till now.

I plug a hp usb kdb (the one supplied with the workstation) in a usb port,
then I reach to start palo in interactive mode to choose either a kernel
2.4 or 2.6. All start normaly untill I got a prompt for the login. But there,
I can hit any key on this kbd, nothing happen even though the system is well
running for the rest?? (same pb with latest cvs 2.4 and 2.6)

Any idea?

Thanks in advance for help,
    Joel

PS: because pdc_console make crash the kernel on this system I desable this
option. 

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Subject: Re: [parisc-linux] sti & b2k: doesn't work?
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On Fri, Jan 30, 2004 at 03:01:12PM +0100, Joel Soete wrote:
> I plug a hp usb kdb (the one supplied with the workstation) in a usb port,
> then I reach to start palo in interactive mode to choose either a kernel
> 2.4 or 2.6. All start normaly untill I got a prompt for the login. But there,
> I can hit any key on this kbd, nothing happen even though the system is well
> running for the rest?? (same pb with latest cvs 2.4 and 2.6)

Are you building your own kernels?
You have USB keyboard/mouse built-in or loaded as a module?

grant


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Subject: Re: [parisc-linux] sti & b2k: doesn't work?
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> Are you building your own kernels?
Yes
> You have USB keyboard/mouse built-in or loaded as a module?

I so have a look:
in 2.4
CONFIG_USB_HID=y
CONFIG_USB_HIDINPUT=y

Is what I have to use (I also encounter CONFIG_USB_KBD and CONFIG_USB_MOUSE
but not see how to select with menuconfig?)

in 2.6 it is not yet a default: should I also used CONFIG_USB_HID=y; CONFIG_USB_HIDINPUT=y?

Thanks for your attention,
    Joel


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Subject: Re: [parisc-linux] sti & b2k: doesn't work?
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On Friday 30 January 2004 15:01, Joel Soete wrote:
> Looking to solve the pb I encounter with b2k and pdc_console, I unfortunately
> figure out that sti console doesn't work at all on this b2k model.
> 
> To be honnest, as the builtin gfx card is not (yet and may be never) supported,
> I only use serial console till now.

Which graphics card do you have ?
What does "lspci -v" and/or dmesg (look for "sti:") says ?

Helge


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On Fri, Jan 30, 2004 at 06:31:31PM +0100, Joel Soete wrote:
> I so have a look:
> in 2.4
> CONFIG_USB_HID=y
> CONFIG_USB_HIDINPUT=y
> 
> Is what I have to use (I also encounter CONFIG_USB_KBD and CONFIG_USB_MOUSE
> but not see how to select with menuconfig?)

I don't have USB_KBD or USB_MOUSE set in my linux-2.4/.config file.
You also have USB_OHCI?

> in 2.6 it is not yet a default: should I also used CONFIG_USB_HID=y; CONFIG_USB_HIDINPUT=y?

yes, among others. See the ftp://ftp.parisc-linux.org/kernels/c3000
for config files and kernels that work on c3000 with STI/USB console.
All the .tgz files have: vmlinuz, .config, System.map, /lib/modules

grant


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To: Joel Soete <soete.joel@tiscali.be>
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On Wed, Jan 28, 2004 at 07:05:14PM +0100, Joel Soete wrote:
> Well, i made some small progress: i reach to figure out that PAGE0 status
> changes between pdc_console_init() and pdc_io_getc():
....
> Is somebody have a small idea when this change could occurs?

PDC messes with page0 as well.
You have the read the PDC ERS for each PDC call to determine
what "side effects" it has. Consider Page Zero "shared mem"
for the guest OS (HPUX or Linux) and PDC.

grant


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Subject: [parisc-linux] Constructor not run in 3.3.3, but does run in 3.0.4
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jda,

I'm playing with a new glibc, it has the new port to generic function
descriptors...

I have a test application whose 'init' is not being run. The application
has a number of DSO it depends on, and as each DSO loads it prints a
number from its 'init', and as it unloads it prints a number from its
'fini'. The main executable doesn't run its 'init', but does run the
'fini'.

In glibc during dl-init() the loader skips running lt_type == lt_executable
'init' functions. The comment notes that it doesn't have to do that job.
Is this the job of the compiler?

---
#include <unistd.h>

void init (void) __attribute__ ((constructor));
void
__attribute__ ((constructor))
init (void)
{
  write (1, "4", 1);
}

void fini (void) __attribute__ ((destructor));
void
__attribute__ ((destructor))
fini (void)
{
  write (1, "5", 1);
}

extern int dep1 (void); 

int
main (void)
{
  return dep1 () != 42;
}
---

An example of the DSO that is loaded...
---
#include <unistd.h>

extern int dep3 (void); 

static void
__attribute__ ((constructor))
init (void)
{
  write (1, "0", 1);
}

static void
__attribute__ ((destructor))
fini (void)
{
  write (1, "9\n", 2);
}

int
dep3 (void)
{
  return 42;
}
---


When all is said and done it should print '0123456789', but right now it
prints '012356789', skipping '4'. If I compile with gcc-3.0.4 it
complains about:
/home/carlos/src/glibc-work/src/libc/include/unistd.h:71: warning:
`visibility' attribute directive ignored

69 char *__canonicalize_directory_name_internal (__const char *__thisdir,
70                                               char *__buf,
71                                               size_t __size) attribute_hidden;

Seems like a red-herring. However, with gcc-3.0.4 everything works just
fine. The order of the initializers is back to normal.

Is there any fragile system by which the linker finds and labels the
executables 'init'?

c.



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> When all is said and done it should print '0123456789', but right now it
> prints '012356789', skipping '4'. If I compile with gcc-3.0.4 it
> complains about:
> /home/carlos/src/glibc-work/src/libc/include/unistd.h:71: warning:
> `visibility' attribute directive ignored
> 
> 69 char *__canonicalize_directory_name_internal (__const char *__thisdir,
> 70                                               char *__buf,
> 71                                               size_t __size) attribute_hidden;
> 
> Seems like a red-herring. However, with gcc-3.0.4 everything works just
> fine. The order of the initializers is back to normal.
> 
> Is there any fragile system by which the linker finds and labels the
> executables 'init'?

I can see atleast two stubs missing in the gcc-3.3 compiled code:

---
     47         ea a0 c0 00     bv r0(r21)
     48 -       48 33 02 b8     ldw 15c(r1),r19                                
     49 -       2b 60 00 00     addil 0,dp,%r1
     50 -       48 35 02 40     ldw 120(r1),r21                                
     51 -       ea a0 c0 00     bv r0(r21)
     52 -       48 33 02 48     ldw 124(r1),r19                                
     53 -       2b 60 00 00     addil 0,dp,%r1
     54 -       48 35 02 a0     ldw 150(r1),r21                                
     55 -       ea a0 c0 00     bv r0(r21)
     56 -       48 33 02 a8     ldw 154(r1),r19                                
     57 +       48 33 02 b0     ldw 158(r1),r19                            
---

The old code called __do_global_ctors_aux directly, while the new code
seems to be running this through __canonicalize_funcptr_for_compare.
Same can be said for __do_global_dtors_aux.

I started poking the binary in order watch the insn flow, and the code
makes it into __do_global_ctors_aux, but the comparison in 10b9c fails,
and the constructor is never called. I guess I should be reviewing the
generic function pointer code.

---
00010b78 <__do_global_ctors_aux>:
   10b78:       6b c2 3f d9     stw rp,-14(sp)
   10b7c:       6f c4 01 00     stw,ma r4,80(sp)
   10b80:       6b c3 3f 09     stw r3,-7c(sp)
   10b84:       2b 60 00 00     addil 0,dp,%r1
   10b88:       34 23 02 18     ldo 10c(r1),r3
   10b8c:       e8 5f 1d 65     b,l 10a44 <__canonicalize_funcptr_for_compare>,rp
   10b90:       0c 60 10 9a     ldw 0(,r3),r26
   10b94:       34 1a 3f ff     ldi -1,r26
   10b98:       e8 5f 1d 4d     b,l 10a44 <__canonicalize_funcptr_for_compare>,rp
   10b9c:       08 1c 02 44     copy ret0,r4
   10ba0:       80 9c 20 22     cmpb,=,n ret0,r4,10bb8 <__do_global_ctors_aux+0x40>
   10ba4:       0c 60 10 96     ldw 0(,r3),r22
   10ba8:       eb ff 1c fd     b,l 10a2c <$$dyncall>,r31
   10bac:       08 1f 02 42     copy r31,rp
   10bb0:       e8 1f 1f ad     b,l 10b8c <__do_global_ctors_aux+0x14>,r0
   10bb4:       34 63 3f f9     ldo -4(r3),r3
   10bb8:       4b c2 3e d9     ldw -94(sp),rp
   10bbc:       4b c3 3f 09     ldw -7c(sp),r3
   10bc0:       e8 40 c0 00     bv r0(rp)
   10bc4:       4f c4 3f 01     ldw,mb -80(sp),r4
---

In the gcc-3.0.4 code the cffc is gone and the executables init runs
correctly. Time to review a few things :)

c.


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From: "John Telek" <johnt@cybertech.net.au>
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Subject: [parisc-linux] B2000 and FXE support
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I have a B2000 that has two problems.

1) USB keymap is a bit weird. ( Cursor keys don't work )
2) Xserver suport for the FXE gfx card.

does anyone have a config file that sorts out the abouve issues please ???
If they have been fixed that is.

  John


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	needs some thinking about...
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jda,

On a hint from Randolph I decided to look at how cffc works in gcc.
Did I get a big whallop. I didn't mention that I'd modified our
TRAMPOLINE_TEMPLATE, because we weren't correclty passing profile_fixup
the return pointer. Then I realized that cffc magically grok'd the byte
offset into the template to get the jump right :)

I'm going to update the clever list of offsets to check, thanks for
doing that, great for backwards compatibility! Once updated, I'll
recompile gcc, and try another round at the tests.

c.



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Xref: news.gmane.org gmane.linux.ports.parisc:20747

Hi Grant,

Grant Grundler wrote:
> On Wed, Jan 28, 2004 at 07:05:14PM +0100, Joel Soete wrote:
> 
>>Well, i made some small progress: i reach to figure out that PAGE0 status
>>changes between pdc_console_init() and pdc_io_getc():
> 
> ....
> 
>>Is somebody have a small idea when this change could occurs?
> 
> 
> PDC messes with page0 as well.
> You have the read the PDC ERS for each PDC call to determine
> what "side effects" it has. Consider Page Zero "shared mem"
> for the guest OS (HPUX or Linux) and PDC.
> 
Ha ok, I still have to learn more :)

For the moment I reach to avoid any crash of 2.4 with pdc_console either I boot from graphics(0) or serial_1.
My patch works well (i can read from pdc kdb) for serial_1 but for graphics(0), I get well a login prompt from pdc
but unfortunately I don't yet reach to read from usb kbd.
But does it make sense to have pdc_console when we have an sti console?
(imho it have well sense for a serial and lan console. Please advise.)

Thanks again,
	Joel


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [PATCH] gcc/config/pa/ftpr.c fixes for new
	TRAMPOLINE_TEMPLATE in hppa's glibc.
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jda,

The following patch is required in gcc to add another byte check for the
new TRAMPOLINE_TEMPLATE that has profile fixes added in glibc 2.3.2.
I've added comments in glibc to indicate that TRAMPOLINE_TEMPLATE
changes are bad things to do. AFAIK this is the last change *ever* since
we now have working profile support :)

I'm not quite sure what the "-4" is intended to accomplish, I figure I
could have prefixed the TREAMPOLINE_TEMPLATE with another jump that
gives the right address? That still makes for an extra jump, and I'd
rather have gcc just look in the right place first.

Thoughts on this?

c.


2004-01-31  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* gcc/config/pa/fptr.c (__canonicalize_funcptr_for_compare): Add
	extra offset check for new glibc TRAMPOLINE_TEMPLATE.

Index: gcc/config/pa/fptr.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/pa/fptr.c,v
retrieving revision 1.2
diff -u -p -r1.2 fptr.c
--- gcc/config/pa/fptr.c	9 Dec 2002 19:16:14 -0000	1.2
+++ gcc/config/pa/fptr.c	31 Jan 2004 22:18:27 -0000
@@ -35,7 +35,7 @@ Boston, MA 02111-1307, USA.  */
    the template should it be necessary to change the current branch
    position.  */
 #define NOFFSETS 2
-static int fixup_branch_offset[NOFFSETS] = { 32, -4 };
+static int fixup_branch_offset[NOFFSETS] = { 36, 32, -4 };
 
 #define GET_FIELD(X, FROM, TO) \
   ((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1))


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From: "AYAZ, MOHAMMED ASIF" <asifayaz@hp.com>
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Subject: [parisc-linux] UNable to boot the cd.
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Hello .=20
I have downloaded  the  iso images   from =
ftp.de.debian.org/debian-cd/3.0_r0/hppa  and made a bootable cd of the =
image.. All I  did  is to search for ipl from the PDC main menu. but it =
doesnt show the cdrom as an ipl device.=20

Another thing I have obeserved is  I found the file ipl in one of the =
install directory. I wonder if this is the process of creating a =
bootable cd.=20

Can you please help me to make the box bootable. I'm testing this on a A =
class server !!=20

I have gone through the PA-RISC-Linux-Boot-HOWTO.html  as well !!=20



Thanks & Regards,
Asif Ayaz=20
Solution Center Engineer
Enterprise Solution Center
Asia Pacific Southern Hub - HP Services
Email ID : asifayaz@hp.com

"The significant problems we face cannot be solved by the same level of =
thinking that created them." - Albert Einstein=20





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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] About 2.6 64bit on b2k?
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Hi all,

About this :
> 
> Sorry for auto-reply but my suspicious was right: I just revert this patch:
> ===================================================================
> RCS file: /var/lib/cvs/linux-2.5/arch/parisc/kernel/head64.S,v
> retrieving revision 1.1.2.1
> retrieving revision 1.1.2.2
> diff -u -r1.1.2.1 -r1.1.2.2
> --- linux-2.5/arch/parisc/kernel/head64.S	2002/12/24 22:15:01	1.1.2.1
> +++ linux-2.5/arch/parisc/kernel/head64.S	2003/01/14 13:08:03	1.1.2.2
> @@ -176,7 +176,9 @@
>  #endif /* CONFIG_SMP */
>  
>  	/* Save the rfi target address */
> -	std		%r11,  TASK_PT_GR11-TASK_SZ_ALGN(%sp)
> +	ldo		-THREAD_SZ_ALGN(%sp), %r1
> +	ldd		TI_TASK(%r1), %r1
> +	std		%r11,  TASK_PT_GR11(%r1)
>  
>  #ifndef CONFIG_PDC_NARROW
>  	/* Switch to wide mode; Superdome doesn't support narrow PDC
> @@ -206,7 +208,9 @@
>  
>  stext_pdc_ret:
>  	/* restore rfi target address*/
> -	ldd		TASK_PT_GR11-TASK_SZ_ALGN(%sp), %r11
> +	ldo		-THREAD_SZ_ALGN(%sp), %r1
> +	ldd		TI_TASK(%r1), %r1
> +	ldd		TASK_PT_GR11(%r1), %r11
>  
>  	/* PARANOID: clear user scratch/user space SR's */
>  	mtsp	%r0,%sr0
> @@ -310,7 +314,7 @@
>  	load32		PA(smp_init_current_idle_task),%sp
>  	ldd		0(%sp),%sp	/* load task address */
>  	mtctl           %sp,%cr30       /* store in cr30 */
> -	ldo             TASK_SZ_ALGN(%sp),%sp
> +	ldo             THREAD_SZ_ALGN(%sp),%sp
>  	tophys_r1       %sp
>  
>  	/* point CPU to kernel page tables */
> =========><=========
> 
> and now it boots well but I am very not able to fix it correctly :(.
> 
> hth.
> 
I don't understand why it works on c3k and not on b2k. Could it be because by b2k has only 256k of physical ram?

Also, I notice that in head64.S there aren't .import like:
[snip]
         .import init_thread_union,data
         .import $global$                /* forward declaration */
         .import fault_vector_11,code    /* IVA parisc 1.1 32 bit */
         .import fault_vector_20,code    /* IVA parisc 2.0 32 bit */

[snip]

as in its 32bit brother head.S

I don't yet find the meaning of '.import' but just in case ;)

hth,
	Joel


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On Sun, Feb 01, 2004 at 04:46:01AM +0530, AYAZ, MOHAMMED ASIF wrote:
> Hello . 
> I have downloaded  the  iso images from
> ftp.de.debian.org/debian-cd/3.0_r0/hppa
> and made a bootable cd of the image..

Can you elaborate (give precise steps) on how you accomplished this?
The ISO images are "raw" files. ie burn them bit-for-bit to the CD.
On a linux box, use
	cdrecord -v dev=0,0,0 -data debian-30r0-hppa-binary-1.iso

where "0,0,0" matches the output from "cdrecord -scanbus".


> All I  did  is to search for ipl from the PDC main menu. but it
> doesnt show the cdrom as an ipl device. 

It will show up. If you absolutely can't get this work,
start thinking about doing a bootp/net install.

> I'm testing this on a A class server !! 

Which one? A180 or A500?
It doesn't really matter since palo is "smart" and will pick
the right kernel (32 vs 64 bit). I'm just curious.

grant


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On Sun, Feb 01, 2004 at 12:40:51AM +0000, Joel Soete wrote:
> I don't understand why it works on c3k and not on b2k.
> Could it be because by b2k has only 256k of physical ram?

No. And you meant 256MB.
But c3k and b2k both supported the same DIMMs originally (128 and 256MB
DIMMS). Minimum mem possible was thus 128MB and I thought 256MB was
the minimum shipped with each box.

Sorry - I don't know why reverting that diff matters.

> Also, I notice that in head64.S there aren't .import like:
> [snip]
>         .import init_thread_union,data
>         .import $global$                /* forward declaration */
>         .import fault_vector_11,code    /* IVA parisc 1.1 32 bit */
>         .import fault_vector_20,code    /* IVA parisc 2.0 32 bit */
> [snip]
> 
> as in its 32bit brother head.S

head64.S only runs wide mode on PA20 HW.
No need for any PA11 or narrow mode code.
Look in the Makefile and see when head64.o is linked in.
Then you'll *SMACK* yourself on the forehead and say "DOH!" :^)


> I don't yet find the meaning of '.import' but just in case ;)

AFAIK, it's just telling the assembler where to expect global symbols.

grant


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HI Grant,


Grant Grundler wrote:
> On Sun, Feb 01, 2004 at 12:40:51AM +0000, Joel Soete wrote:
> 
>>I don't understand why it works on c3k and not on b2k.
>>Could it be because by b2k has only 256k of physical ram?
> 
> 
> No. And you meant 256MB.
Oops yes :)

> But c3k and b2k both supported the same DIMMs originally (128 and 256MB
> DIMMS). Minimum mem possible was thus 128MB and I thought 256MB was
> the minimum shipped with each box.
> 
> Sorry - I don't know why reverting that diff matters.
> 
Not more, I will try to objdump the two head64.o and see what the diff?

> 
>>Also, I notice that in head64.S there aren't .import like:
>>[snip]
>>        .import init_thread_union,data
>>        .import $global$                /* forward declaration */
>>        .import fault_vector_11,code    /* IVA parisc 1.1 32 bit */
>>        .import fault_vector_20,code    /* IVA parisc 2.0 32 bit */
>>[snip]
>>
>>as in its 32bit brother head.S
> 
> 
> head64.S only runs wide mode on PA20 HW.
> No need for any PA11 or narrow mode code.
I understand that but less '.import init_thread_union,data' when
[snip]
         /* And the stack pointer too */
         load32          PA(init_thread_union+THREAD_SZ_ALGN),%sp

[snip]
(never the less in the working 2.4 it was the same, so I trust that the problem is very well in the computed pointers?
But I don't have material right now to check ;) )
I am also curious to revert patch on the N (on which the patch works)?

> Look in the Makefile and see when head64.o is linked in.
> Then you'll *SMACK* yourself on the forehead and say "DOH!" :^)
> 
> 
> 
>>I don't yet find the meaning of '.import' but just in case ;)
> 
> 
> AFAIK, it's just telling the assembler where to expect global symbols.
> 
> grant
> 
Many thanks,
	Joel


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Subject: Re: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 carlos
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> Sorry for auto-reply but my suspicious was right: I just revert this patch:

can you try this one instead?

randolph

Index: arch/parisc/kernel/head64.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head64.S,v
retrieving revision 1.3
diff -u -p -r1.3 head64.S
--- arch/parisc/kernel/head64.S 17 Jan 2004 15:00:32 -0000      1.3
+++ arch/parisc/kernel/head64.S 1 Feb 2004 18:09:13 -0000
@@ -165,8 +165,7 @@ common_stext:
 #endif /* CONFIG_SMP */

        /* Save the rfi target address */
-       ldo             -THREAD_SZ_ALGN(%sp), %r1
-       ldd             TI_TASK(%r1), %r1
+       ldd             TI_TASK-THREAD_SZ_ALGN(%sp), %r1
        std             %r11,  TASK_PT_GR11(%r1)

 #ifndef CONFIG_PDC_NARROW
@@ -301,7 +300,8 @@ smp_slave_stext:

        /*  Initialize the SP - monarch sets up smp_init_current_idle_task */
        load32          PA(smp_init_current_idle_task),%sp
-       ldd             0(%sp),%sp      /* load task address */
+       ldd             0(%sp),%sp      /* load thread_info address */
+       ldd             TASK_THREAD_INFO(%sp), %sp
        mtctl           %sp,%cr30       /* store in cr30 */
        ldo             THREAD_SZ_ALGN(%sp),%sp
        tophys_r1       %sp


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Subject: [parisc-linux] [Update] glibc 2.3.2 bug free on hppa.
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pa,

As of today the last glibc bug was fixed:

- Statically linked executable SIGSEGV's when calling dlopen. (FIXED)

As far as I'm concerned glibc has zero bugs, not counting the fact that
we don't yet have a long double implementation.

I know the gentoo crowd is always interested in the lastest set of
patches, so here goes:

http://www.parisc-linux.org/~carlos/glibc-hppa-patches-2004-02-01.tar.gz

At the moment you need a patched gcc in order to build a correct
userspace, I'm trying to fix this so you don't have to:

http://www.parisc-linux.org/~carlos/gcc-3.3.2-fptr.diff

Lite-Recipe for running test-suite:
(a) Download gcc 3.3.2 source.
(b) Patch with fptr.diff from above.
(c) Build gcc 3.3.2
(d) Download glibc cvs head.
(e) Patch with glibc patches from above.
(f) Build glibc with the gcc from (c).
(g) Run glibc testsuite "make -k check" using gcc from (c).
(h) Look for errors "grep 'Error' test-result.log"

I'll start focusing most of my time fixing gdb now :)

Background tasks:

- debian-glibc support.
- Send glibc patches upstream.

I'll be looking for a helper if someone wants to look into new
regressions as they arrive? Usually just building upstream with the
above patches, and checking that we didn't regress is good enough.
I imagine I could automate that... or rather someone else could? :)

Foreground tasks:

- atomic kernel ops
- review gettimeofday, and possible speedups.
- review time code in the kernel.
* gdb support upstream <- Highest foreground priority.

Thanks for all the help guys! Randolph for making me read the cffc code
and figure out what I did wrong, that fixed "last_bug-1". Richard had me
thinking about debian-installer and what would happen if you ripped out
the PLT of the executable, this lead me to fix "last_bug." :)

So.... who wants to setup an automated glibc builder? :}

Cheers,
Carlos.




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On Sun, 2004-02-01 18:08:45 -0500, Carlos O'Donell <carlos@baldric.uwo.ca>
wrote in message <20040201230839.GA10328@baldric.uwo.ca>:

> So.... who wants to setup an automated glibc builder? :}

I certainly could (from hardware and shell scripting opint of view), but
I might need some help with all the ./configury ...

Building a toolchain isn't allways a pleasuring task, esp. if you want a
cross-toolchain. So if interested, I'd dedicate my b132l to that job:)

MfG, JBG

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Hi Randolph,

Very sorry but it doesn't works :( 
(Sorry also if I couldn't help more: my knowledge of kernel internals is
still too limited :( )

Thanks for your attention,
    Joel


>-- Original Message --
>Date: Sun, 1 Feb 2004 12:05:40 -0800
>From: Randolph Chung <randolph@tausq.org>
>To: Joel Soete <soete.joel@tiscali.be>
>Cc: Carlos O'Donell <carlos@baldric.uwo.ca>,
>	James Bottomley <James.Bottomley@steeleye.com>,
>	parisc-linux@lists.parisc-linux.org
>Reply-To: Randolph Chung <randolph@tausq.org>
>Subject: Re: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 carlos
>
>
>> Sorry for auto-reply but my suspicious was right: I just revert this patch:

can you try this one instead?

randolph

Index: arch/parisc/kernel/head64.S
===================================================================
RCS file: /var/cvs/li
>ux-2.6/arch/parisc/kernel/head64.S,v
retrieving revision 1.3
diff -u -p -r1.3 head64.S
--- arch/parisc/kernel/head64.S 17 Jan 2004 15:00:32 -0000      1.3
+++ arch/parisc/kernel/head64.S 1 Feb 2004 18:09:13 -0000
@@ -165,8 +165,7 @@ common_stext:

> #endif /* CONFIG_SMP */

        /* Save the rfi target address */
-       ldo             -THREAD_SZ_ALGN(%sp), %r1
-       ldd             TI_TASK(%r1), %r1
+       ldd             TI_TASK-THREAD_SZ_ALGN(%sp), %r1
        std             %r11,
> TASK_PT_GR11(%r1)

 #ifndef CONFIG_PDC_NARROW
@@ -301,7 +300,8 @@ smp_slave_stext:

        /*  Initialize the SP - monarch sets up smp_init_current_idle_task
*/
        load32          PA(smp_init_current_idle_task),%sp
-       ldd            
>0(%sp),%sp      /* load task address */
+       ldd             0(%sp),%sp      /* load thread_info address */
+       ldd             TASK_THREAD_INFO(%sp), %sp
        mtctl           %sp,%cr30       /* store in cr30 */
        ldo             TH
>EAD_SZ_ALGN(%sp),%sp
        tophys_r1       %sp



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Subject: Re: [parisc-linux] sti & b2k: doesn't work?
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>
>Which graphics card do you have ?
>What does "lspci -v" and/or dmesg (look for "sti:") says ?

Hi Helge,

Sorry for delay but during week-end I do not have access to this system ;).

Here are the info:
# lspci -v
[snip]
01:00.0 3D controller: Hewlett-Packard Company Visualize FXe (rev 03)
	Subsystem: Hewlett-Packard Company: Unknown device 108c
	Flags: bus master, 66Mhz, medium devsel, latency 255, IRQ 256
	Memory at fffffff0 (64-bit, prefetchable) [size=16M]
	Memory at fffffff0 (64-bit, non-prefetchable) [size=16M]
	Expansion ROM at fffff800 [size=128K]
[snip]
00:0e.2 USB Controller: National Semiconductor Corporation USB Controller
(rev 02) (prog-if 10 [OHCI])
	Flags: bus master, medium devsel, latency 240, IRQ 193
	Memory at fffffff0 (32-bit, non-prefetchable) [size=4K]
	Memory at fffffff0 (32-bit, non-prefetchable) [size=4K]
[snip]

# more /var/log/dmesg
[snip]
STI PCI graphic ROM found at fffffffff4940000 (128 kB), fb at fffffffffb000000
(16 MB)
    id 35acda16-9a02587, conforms to spec rev. 8.0c
    graphics card name: HPA4982A
stifb: 'HPA4982A' (id: 0x35acda16) not supported.
[snip]

hth,
    Joel

PS: for pdc_console on b2k, I don't care for the moment that stifb is not
supported ;)




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Subject: RE: [parisc-linux] [Update] glibc 2.3.2 bug free on hppa.
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Hi Carlos,

As a first step, I would just like test the toolchain:
I so grab first _manualy_ last binutils and gcc (3.3.3-0pre3) dkpg src and
apply patches (with './debian/rules patch' in the corresponding src pkg
dir)
Then grab upsteam glibc (2.3.3 is it the one I had to consider you spoke
about 2.3.2??) and apply your patches.

every thing works fine until I reach second step of gcc build where configure
failed with following error message:
Configure gcc step2:

Cmd: unset CC; unset CFLAGS;  export PATH="/opt/palinux-3.3.3/bin:$PATH";
/Develop/parisc-linux/sources/gcc/configure --target=hppa-linux --host=hppa-linux
--build=hppa-linux --prefix=/opt/palinux-3.3.3 --enable-shared --disable-nls
--enable-languages=c
Mon Feb 02 16:01:37 UTC 2004:

*** This configuration is not supported
in the following subdirectories:
     target-libffi target-boehm-gc target-zlib target-libjava target-libstdcv3
target-libf2c zlib fastjar target-libobjc
    (Any other directories should still work fine.)
Created "Makefile" in /Develop/parisc-linu
/build/gcc using "mt-frag"
/lib/libc.so.6: undefined reference to `__libc_stack_end@GLIBC_PRIVATE'
/lib/libc.so.6: undefined reference to `_dl_function_address@GLIBC_PRIVATE'
collect2: ld returned 1 exit status
*** The command 'gcc -o conftest -g -O2   conftest.c' failed.
*** You must set the environment variable CC to a working compiler.

I have a look in my /opt/palinux-3.3.3/bin but there is not yet any gcc
at this stage so it will use /usr/bin/gcc may be should I use better the
partial gcc (build during step 1)?

Thanks for all of your help,
    Joel

PS: glibc it self is configure as follow:
Cmd: unset LD_LIBRARY_PATH; unset LD_RUN_PATH; export CC=/Develop/parisc-linux/xc/bin/hppa-linux-gcc;
export CLFAGS="-O2 -g";  export PATH="/Develop/parisc-linux/xc/bin:$PATH";
/Develop/parisc-linux/sources/glibc/configure --target=hppa-linux --host=hppa-linux
--build=hppa-linux --prefix=/opt/palinux-3.3.3/hppa-linux --without-cvs --disable-profile
--enable-hacker-mode --enable-add-ons=linuxthreads --with-headers=/Develop/parisc-linux/sources/linux/include


>-- Original Message --
>Date: Sun, 1 Feb 2004 18:08:45 -0500
>From: Carlos O'Donell <carlos@baldric.uwo.ca>
>To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux] [Up
ate] glibc 2.3.2 bug free on hppa.
>
>
>
pa,

As of today the last glibc bug was fixed:

- Statically linked executable SIGSEGV's when calling dlopen. (FIXED)

As far as I'm concerned glibc has zero bugs, not counting the fact that
we don't 
et have a long double implementation.

I
>know the gentoo crowd is always interested in the lastest set of
patches, so here goes:

http://www.parisc-linux.org/~carlos/glibc-hppa-patches-2004-02-01.tar.gz

At the moment you need a patched gcc in
order to build a correct
userspace, I'm try
>ng to fix this so you don't have to:

http://www.parisc-linux.org/~carlos/gcc-3.3.2-fptr.diff

Lite-Recipe for running test-suite:
(a) Download gcc 3.3.2 source.
(b) Patch with fptr.diff from above.

(c) Build gcc 3.3.2
(d) Download glibc cvs he
>d.
(e) Patch with glibc patches from above.
(f) Build glibc with the gcc from (c).
(g) Run glibc testsuite "make -k check" using gcc from (c).
(h) Look for errors "grep 'Error' test-result.log"

I'
l start focusing most of my time fixing gdb now
>)

Background tasks:

- debian-glibc support.
- Send glibc patches upstream.

I'll be looking for a helper if someone wants to look into new
regressions as they arrive? Usually just building ups
ream with the
above patches, and checking that w
> didn't regress is good enough.
I imagine I could automate that... or rather someone else could? :)

Foreground tasks:

- atomic kernel ops
- review gettimeofday, and possible speedups.
- revie
 time code in the kernel.
* gdb support upstream <
> Highest foreground priority.

Thanks for all the help guys! Randolph for making me read the cffc code
and figure out what I did wrong, that fixed "last_bug-1". Richard had me
thinking about deb
an-installer and what would happen if you ripped out

>the PLT of the executable, this lead me to fix "last_bug." :)

So.... who wants to setup an automated glibc builder? :}

Cheers,
Carlos.


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>x.org
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Hi Randolph,

Very sorry but it doesn't works :( 
(Sorry also if I couldn't help more: my knowledge of kernel internals is
still too limited :( )

Thanks for your attention,
    Joel

PS: btw I try to compare the dump of two .o files:
palx2000:/usr/src/linux-2.6.2-rc2-pa3/arch/parisc/kernel# diff -Nau head64.working.dmp
head64.orig.dmp 
--- head64.working.dmp	2004-02-02 19:39:05.295417088 +0100
+++ head64.orig.dmp	2004-02-02 19:34:56.138294728 +0100
@@ -62,39 +62,43 @@
   cc:	f0 66 0c 00 	depd r6,31,32,r3
   d0:	68 00 00 20 	stw r0,10(r0)
   d4:	68 00 00 50 	stw r0,28(r0)
-  d8:	73 cb 38 31 	std r11,-3e8(sp)
-  dc:	00 00 14 a2 	mfia rp
-  e0:	34 42 00 28 	ldo 14(rp),rp
-  e4:	f4 40 0c 00 	depdi 0,31,32,rp
-  e8:	e8 40 c0 00 	bv r0(rp)
-  ec:	02 00 0d 60 	ssm 200,r0
-  f0:	34 1a 00 2a 	ldi 15,r26
-  f4:	34 19 00 04 	ldi 2,r25
-  f8:	34 18 00 04 	ldi 2,r24
-  fc:	20 40 00 00 	ldil 0,rp
- 100:	34 42 00 00 	ldo 0(rp),rp
- 104:	e8 60 c0 00 	bv r0(r3)
- 108:	08 00 02 57 	copy r0,r23
+  d8:	37 c1 3e 01 	ldo -100(sp),r1
+  dc:	0c 20 10 c1 	ldd 0(,r1),r1
+  e0:	70 2b 0b 30 	std r11,598(r1)
+  e4:	00 00 14 a2 	mfia rp
+  e8:	34 42 00 28 	ldo 14(rp),rp
+  ec:	f4 40 0c 00 	depdi 0,31,32,rp
+  f0:	e8 40 c0 00 	bv r0(rp)
+  f4:	02 00 0d 60 	ssm 200,r0
+  f8:	34 1a 00 2a 	ldi 15,r26
+  fc:	34 19 00 04 	ldi 2,r25
+ 100:	34 18 00 04 	ldi 2,r24
+ 104:	20 40 00 00 	ldil 0,rp
+ 108:	34 42 00 00 	ldo 0(rp),rp
+ 10c:	e8 60 c0 00 	bv r0(r3)
+ 110:	08 00 02 57 	copy r0,r23
 
-000000000000010c <stext_pdc_ret>:
- 10c:	53 cb 38 31 	ldd -3e8(sp),r11
- 110:	00 00 18 20 	mtsp r0,sr0
- 114:	00 00 58 20 	mtsp r0,sr1
- 118:	00 00 98 20 	mtsp r0,sr2
- 11c:	00 00 d8 20 	mtsp r0,sr3
- 120:	01 00 18 40 	mtctl r0,pidr1
- 124:	01 20 18 40 	mtctl r0,pidr2
- 128:	01 80 18 40 	mtctl r0,pidr3
- 12c:	01 a0 18 40 	mtctl r0,pidr4
- 130:	20 20 02 00 	ldil 10000000,r1
- 134:	08 3e 06 3e 	add sp,r1,sp
- 138:	23 60 00 00 	ldil 0,dp
- 13c:	37 7b 00 00 	ldo 0(dp),dp
- 140:	21 40 00 00 	ldil 0,r10
- 144:	35 4a 00 00 	ldo 0(r10),r10
- 148:	01 ca 18 40 	mtctl r10,iva
- 14c:	e8 00 01 58 	b,l 200 <aligned_rfi>,r0
- 150:	08 00 02 40 	nop
+0000000000000114 <stext_pdc_ret>:
+ 114:	37 c1 3e 01 	ldo -100(sp),r1
+ 118:	0c 20 10 c1 	ldd 0(,r1),r1
+ 11c:	50 2b 0b 30 	ldd 598(r1),r11
+ 120:	00 00 18 20 	mtsp r0,sr0
+ 124:	00 00 58 20 	mtsp r0,sr1
+ 128:	00 00 98 20 	mtsp r0,sr2
+ 12c:	00 00 d8 20 	mtsp r0,sr3
+ 130:	01 00 18 40 	mtctl r0,pidr1
+ 134:	01 20 18 40 	mtctl r0,pidr2
+ 138:	01 80 18 40 	mtctl r0,pidr3
+ 13c:	01 a0 18 40 	mtctl r0,pidr4
+ 140:	20 20 02 00 	ldil 10000000,r1
+ 144:	08 3e 06 3e 	add sp,r1,sp
+ 148:	23 60 00 00 	ldil 0,dp
+ 14c:	37 7b 00 00 	ldo 0(dp),dp
+ 150:	21 40 00 00 	ldil 0,r10
+ 154:	35 4a 00 00 	ldo 0(r10),r10
+ 158:	01 ca 18 40 	mtctl r10,iva
+ 15c:	e8 00 01 38 	b,l 200 <aligned_rfi>,r0
+ 160:	08 00 02 40 	nop
 	...
 
 0000000000000200 <aligned_rfi>:
=========><=========

head64.working.dmp being the one which working (ie with mentioned reverted
patch)

head64.orig.dmp being the cvs one.

Do you noticed compiler error?

hth,
    Joel


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Subject: [parisc-linux] glibc 2.3.3 is bug free, weekly regression build,
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> 
> I certainly could (from hardware and shell scripting opint of view), but
> I might need some help with all the ./configury ...
> 
> Building a toolchain isn't allways a pleasuring task, esp. if you want a
> cross-toolchain. So if interested, I'd dedicate my b132l to that job:)

How about no toolchain build, and just a glibc build with checks for
regressions in the testsuite?

I just fixed glibc so you don't have to build a cross-toolchain, or any
toolchain for the matter. So now all you need to do is:

Initially:
(1) Pull down glibc cvs.

	echo Enter "anoncvs" as the password
	cvs -z 9 -d :pserver:anoncvs@sources.redhat.com:/cvs/glibc login
	cvs -z 9 -d :pserver:anoncvs@sources.redhat.com:/cvs/glibc co libc

(2) Pull down latest patch set.

	wget http://www.parisc-linux.org/~carlos/glibc-hppa-patches-latest.tar.gz
	(Symlinked to glibc-hppa-patches-2004-02-02.tar.gz)

(3) Apply patches, watch for rejects.

	tar zxvf $FILENAME.tar.gz
	cd $SRC/libc
	# How do you gr0k for pathname from a symlinked tar.gz that
	# unpacks to something else...
	for i in `ls $PATHNAME/*`; do patch -p1 < $i; done;
	find . -name '*.rej'

(4) Jump to "Weekely: (4)"

Weekly:
(1) Reverse out patches.

	for i in `ls $PATHNAME/*`; do patch -R -p1 < $i; done;

(2) Pull down latest patch set.

	= Same as above (2)

(3) Update glibc source tree.

	cd $GLIBCSRC
	cvs up >& ../cvs-up.log

(4) Apply new patches, watch for rejects.

	= Same as above (3)

(5) Configure, make, make -k check
	
	export CC=gcc
	export CFLAGS="-O2 -g"

	$BASE/$SRC/$LIBC/configure --host=hppa-linux
	--build=hppa-linux --target=hppa-linux --prefix=/usr
	--enable-add-ons=linuxthreads --disable-tls --disable-__thread
	--enable-all-warnings >& ../configure-hppa.log

	make >& ../build-hppa.log
	make -k check >& ../check-hppa.log

(6) Watch for regresssions.

	grep 'Error' check-hppa.log >& mailout.txt
	# Mail mailout.txt to cvs.parisc-linux.org?

(7) Wait a week, then go to (1)

	# Add to your weekly cron?

Is anyone opposed to having 'grep 'Error' check.log' posted to
cvs.parisc-linux.org on a weekly basis?

Is this enough information to lend a helping hand in writing the build
script? :)

c.



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It`s fabuklous!

I took the only one pijll of Cialjs and that was such a GREAT weekend!
All the girls at the party were just punch-drunk with my potential

I have fhcked all of them THREE times but my dhck WAS able to do some more!

Cbalis- it`s COOL!!! The best weekend stuff I've ever trhied!
Haven`t you tried yet?

DO IT NkOW at 
http://www.vow-meds.com/sv/index.php?pid=genviag

crankshaft Sergei chirped designates buried reaping educates anodize decencies.
 




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Subject: Re: [parisc-linux] [PATCH] gcc/config/pa/ftpr.c fixes for new
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> I'm not quite sure what the "-4" is intended to accomplish, I figure I
> could have prefixed the TREAMPOLINE_TEMPLATE with another jump that
> gives the right address? That still makes for an extra jump, and I'd
> rather have gcc just look in the right place first.
 
The easier fix is to change dl-machine.h to read:

    505 #define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name)                     \
    506   extern void tramp_name (void);                                        \
    507   asm (                                                                 \
    508  "      .text\n"                                                        \
    509         /* FAKE bl to provide gcc's __cffc with fixup's address */      \
    510  "      bl      " #fixup_name ",%r2\n" /* Runtime address of fixup */   \
    511  "      .globl " #tramp_name "\n"                                       \
    512  "      .type " #tramp_name ",@function\n"                              \
    513   #tramp_name ":\n"                                                     \
    514         /* Save return pointer */                                       \
    515  "      stw     %r2,-20(%sp)\n"                                         \

The addition of the *fake* bl in that .text before the function allows gcc
to use the "-4" lookup to find the right 17-bit displacement towards "fixup"

The patch below *can* still go into gcc, and will speedup __cffc when running
with the new glibc.

The above changes are added into the latest glibc patches at:
http://www.parisc-linux.org/~carlos/glibc-hppa-patches-latest.tar.gz


> 2004-01-31  Carlos O'Donell  <carlos@baldric.uwo.ca>
> 
> 	* gcc/config/pa/fptr.c (__canonicalize_funcptr_for_compare): Add
> 	extra offset check for new glibc TRAMPOLINE_TEMPLATE.
> 
> Index: gcc/config/pa/fptr.c
> ===================================================================
> RCS file: /cvs/gcc/gcc/gcc/config/pa/fptr.c,v
> retrieving revision 1.2
> diff -u -p -r1.2 fptr.c
> --- gcc/config/pa/fptr.c	9 Dec 2002 19:16:14 -0000	1.2
> +++ gcc/config/pa/fptr.c	31 Jan 2004 22:18:27 -0000
> @@ -35,7 +35,7 @@ Boston, MA 02111-1307, USA.  */
>     the template should it be necessary to change the current branch
>     position.  */
>  #define NOFFSETS 2
> -static int fixup_branch_offset[NOFFSETS] = { 32, -4 };
> +static int fixup_branch_offset[NOFFSETS] = { 36, 32, -4 };
>  
>  #define GET_FIELD(X, FROM, TO) \
>    ((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1))


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Subject: RE: [parisc-linux] UNable to boot the cd.
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Hi Grant,=20
Thanks For your Mail,=20
To start with.=20
o I Had downloaded the iso image from  =
ftp.de.debian.org/debian-cd/3.0_r0/hppa

o Used a Winxp to write a CD!!=20

o I did Search ipl from teh main menu itdid'nt  show the cdrom as an ipl =
device.=20
o I tried booting hte CD rom as well but to no luck..=20
o IT's on a A500 (9000/800/A500-44)=20

I wonder wat's wrong with my cd !!=20


Thanks & Regards=20
Asif=20





-----Original Message-----
From: Grant Grundler [mailto:grundler@parisc-linux.org]
Sent: Sunday, February 01, 2004 10:22 AM
To: AYAZ, MOHAMMED ASIF
Cc: parisc-linux@parisc-linux.org
Subject: Re: [parisc-linux] UNable to boot the cd.


On Sun, Feb 01, 2004 at 04:46:01AM +0530, AYAZ, MOHAMMED ASIF wrote:
> Hello .=20
> I have downloaded  the  iso images from
> ftp.de.debian.org/debian-cd/3.0_r0/hppa
> and made a bootable cd of the image..

Can you elaborate (give precise steps) on how you accomplished this?
The ISO images are "raw" files. ie burn them bit-for-bit to the CD.
On a linux box, use
	cdrecord -v dev=3D0,0,0 -data debian-30r0-hppa-binary-1.iso

where "0,0,0" matches the output from "cdrecord -scanbus".


> All I  did  is to search for ipl from the PDC main menu. but it
> doesnt show the cdrom as an ipl device.=20

It will show up. If you absolutely can't get this work,
start thinking about doing a bootp/net install.

> I'm testing this on a A class server !!=20

Which one? A180 or A500?
It doesn't really matter since palo is "smart" and will pick
the right kernel (32 vs 64 bit). I'm just curious.

grant


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Subject: RE: [parisc-linux] UNable to boot the cd.
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Hi Asif,

>To start with. 
>o I Had downloaded the iso image from  ftp.de.debian.org/debian-cd/3.0_r0/hppa
>
Ok (I used successfully the same from same site recently :) )

>o Used a Winxp to write a CD!! 

I know well it as an OS is it also the name of your burning tool?
If not could you give its name and release (iirc some tools wasn't able to
do before a given release)

>o I did Search ipl from teh main menu itdid'nt  show the cdrom as an ipl
device.

severall pb are possible: 
* the most common one is that the cd was not burn with correct options (see
your cd burning tool user guide)
* your image file could be corrupted (iirc there was also a md5sums file
which allow you to check the integrity of this image) 
* the type of the cdrom drive you used to boot (is it a hp buildin?) couldn't
allow you to boot. Could boot with an hpux install CD?

>o I tried booting hte CD rom as well but to no luck.. 
>o IT's on a A500 (9000/800/A500-44) 
>
>I wonder wat's wrong with my cd !! 

hth,
    Joel

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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] UNable to boot the cd.
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On Tue, Feb 03, 2004 at 08:13:21PM +0530, AYAZ, MOHAMMED ASIF wrote:
> Hi Grant, 
> Thanks For your Mail, 
> To start with. 
> o I Had downloaded the iso image from  ftp.de.debian.org/debian-cd/3.0_r0/hppa

very good

> o Used a Winxp to write a CD!! 
...
> I wonder wat's wrong with my cd !! 

Try reading documentation about "Winxp" and whatever CD SW it comes with.
I would guess it has "Easy CD Creator". Look for "raw mode" or something
like that in the documentation or help files.

IIRC, instructions on how to burn parisc CD's with CD Creator have
been posted to parisc-linux (or debian-hppa) before.

BTW, A500-44 definitely works as I have several running parisc-linux.

grant


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 carlos
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On Tue, Feb 03, 2004 at 02:51:13PM -0700, Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	carlos	04/02/03 14:51:13
> 
> Modified files:
> 	include/linux  : compat_siginfo.h 
> 
> Log message:
> Change compat_copy_siginfo_to_user to take the true argument values of the function.
> 
> _______________________________________________
> parisc-linux-cvs mailing list
> parisc-linux-cvs@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux-cvs

This matches what I've sent upstream to akpm.

Index: include/linux/compat_siginfo.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/linux/compat_siginfo.h,v
retrieving revision 1.2
diff -u -p -r1.2 compat_siginfo.h
--- include/linux/compat_siginfo.h      28 Jan 2004 05:12:46 -0000      1.2
+++ include/linux/compat_siginfo.h      3 Feb 2004 21:50:30 -0000
@@ -11,7 +11,8 @@
 typedef struct compat_siginfo{
 } compat_siginfo_t;
 
-static inline int compat_copy_siginfo_to_user(void *x, unsigned long y)
+static inline int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, 
+                                               struct siginfo *from)
 {
        return -1;
 }



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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 carlos
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On Tue, Feb 03, 2004 at 04:04:10PM -0700, Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	carlos	04/02/03 16:04:10
> 
> Modified files:
> 	include/linux  : compat.h 
> 
> Log message:
> Personality is a bitmask, so we use personality() to extract just the base personality before checking for PER_LINUX32 e.g. A compat task
> 

This booboo would have bitten eventually.

c.

Index: include/linux/compat.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/linux/compat.h,v
retrieving revision 1.7
retrieving revision 1.8
diff -u -p -r1.7 -r1.8
--- include/linux/compat.h      28 Jan 2004 05:12:46 -0000      1.7
+++ include/linux/compat.h      3 Feb 2004 23:04:09 -0000       1.8
@@ -23,7 +23,7 @@
 
 /* Non-native task requiring compat */
 #ifndef HAVE_ARCH_IS_COMPAT_TASK
-#define is_compat_task(x) (x->personality == PER_LINUX32)
+#define is_compat_task(x) (personality(x->personality) == PER_LINUX32)
 #endif
 
 struct compat_itimerspec { 



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Carlos O'Donell writes:
> The patch below *can* still go into gcc, and will speedup __cffc when running
> with the new glibc.
> 
> The above changes are added into the latest glibc patches at:
> http://www.parisc-linux.org/~carlos/glibc-hppa-patches-latest.tar.gz
> 
> 
> > 2004-01-31  Carlos O'Donell  <carlos@baldric.uwo.ca>
> > 
> > 	* gcc/config/pa/fptr.c (__canonicalize_funcptr_for_compare): Add
> > 	extra offset check for new glibc TRAMPOLINE_TEMPLATE.
> > 
> > Index: gcc/config/pa/fptr.c
> > ===================================================================
> > RCS file: /cvs/gcc/gcc/gcc/config/pa/fptr.c,v
> > retrieving revision 1.2
> > diff -u -p -r1.2 fptr.c
> > --- gcc/config/pa/fptr.c	9 Dec 2002 19:16:14 -0000	1.2
> > +++ gcc/config/pa/fptr.c	31 Jan 2004 22:18:27 -0000
> > @@ -35,7 +35,7 @@ Boston, MA 02111-1307, USA.  */
> >     the template should it be necessary to change the current branch
> >     position.  */
> >  #define NOFFSETS 2
                     ^^^ ?
> > -static int fixup_branch_offset[NOFFSETS] = { 32, -4 };
> > +static int fixup_branch_offset[NOFFSETS] = { 36, 32, -4 };


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> > >     the template should it be necessary to change the current branch
> > >     position.  */
> > >  #define NOFFSETS 2
>                      ^^^ ?
> > > -static int fixup_branch_offset[NOFFSETS] = { 32, -4 };
> > > +static int fixup_branch_offset[NOFFSETS] = { 36, 32, -4 };

Yes, that should be a '3'.
I'll revise that.

Thanks Matthias! 

c.



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Thank YOu all Gentlemenfor your over whelming response :)

I use Roxio's Easy Cd creator ( as I use to Burn (Linux- i386) Cd's )=20
Is ther any Special Procedure for burning  cd's for parisc..

* The type of the cdrom drive you used to boot (is it a hp buildin?) =
couldn't
allow you to boot. Could boot with an hpux install CD?

=3D> Yes, IT works fine with Hpux install CD !=20


* Try reading documentation about "Winxp" and whatever CD SW it comes =
with.
I would guess it has "Easy CD Creator". Look for "raw mode" or something
like that in the documentation or help files.

IIRC, instructions on how to burn parisc CD's with CD Creator have
been posted to parisc-linux (or debian-hppa) before.

=3D> Can u pls provide me the url for this..=20

Right now i'm Re- Downloading the Image=20
debian-30r2-hppa-binary-1 ( Easy CD creator Image File)=20
debian-30r2-hppa-binary-1_NONUS ( Easy CD creator Image File)
Letme see how it goes..=20

Thanks YOU all One again :_)

Asif



-----Original Message-----
From: Joel Soete [mailto:soete.joel@tiscali.be]
Sent: Tuesday, February 03, 2004 10:25 PM
To: AYAZ, MOHAMMED ASIF; Grant Grundler
Cc: parisc-linux@parisc-linux.org
Subject: RE: [parisc-linux] UNable to boot the cd.


Hi Asif,

>To start with.=20
>o I Had downloaded the iso image from  =
ftp.de.debian.org/debian-cd/3.0_r0/hppa
>
Ok (I used successfully the same from same site recently :) )

>o Used a Winxp to write a CD!!=20

I know well it as an OS is it also the name of your burning tool?
If not could you give its name and release (iirc some tools wasn't able =
to
do before a given release)

>o I did Search ipl from teh main menu itdid'nt  show the cdrom as an =
ipl
device.

severall pb are possible:=20
* the most common one is that the cd was not burn with correct options =
(see
your cd burning tool user guide)
* your image file could be corrupted (iirc there was also a md5sums file
which allow you to check the integrity of this image)=20
* the type of the cdrom drive you used to boot (is it a hp buildin?) =
couldn't
allow you to boot. Could boot with an hpux install CD?

>o I tried booting hte CD rom as well but to no luck..=20
>o IT's on a A500 (9000/800/A500-44)=20
>
>I wonder wat's wrong with my cd !!=20

hth,
    Joel

-------------------------------------------------------------------------=

Tiscali ADSL: 12 mois =E0 29,50 EUR/mois! L'Internet rapide, c'est pour =
tout
le monde.
http://reg.tiscali.be/default.asp?lg=3Dfr




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On Wed, Feb 04, 2004 at 08:15:16AM +0530, AYAZ, MOHAMMED ASIF wrote:
> IIRC, instructions on how to burn parisc CD's with CD Creator have
> been posted to parisc-linux (or debian-hppa) before.
> 
> => Can u pls provide me the url for this.. 

	http://lists.parisc-linux.org/

and then enter "Easy CD creator" in the text box.

grant


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I just recently got an HP 1825 Flat panel display.
The documentation says the panel supports 1600x1200 resolution
via analog (not DVI) input at 75Khz Hsync, 60Hz refresh (Vsync).

Anyone already know if PCI Vis-EG card can output that?
If so how? Maybe some sort of custom "mode line" in PDC?
I'm looking for concrete steps, not speculation.

I'll hunt a bit more on the internet since I'm pretty sure
I've seen some of the HP parisc workstations allow for
a "custom" video output but don't know if Vis-EG allows
that or where the steps to do it are described.

thanks,
grant


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Thanks Grant,=20
All wat i did was clik on the image and found that thae filw system in =
the Cd is CDFS ..=20
Wat should be the file syslem of the CD ! I guess ISO rite=20

Thanks=20



-----Original Message-----
From: Grant Grundler [mailto:grundler@parisc-linux.org]
Sent: Wednesday, February 04, 2004 10:38 AM
To: AYAZ, MOHAMMED ASIF
Cc: parisc-linux@parisc-linux.org
Subject: Re: [parisc-linux] UNable to boot the cd.


On Wed, Feb 04, 2004 at 08:15:16AM +0530, AYAZ, MOHAMMED ASIF wrote:
> IIRC, instructions on how to burn parisc CD's with CD Creator have
> been posted to parisc-linux (or debian-hppa) before.
>=20
> =3D> Can u pls provide me the url for this..=20

	http://lists.parisc-linux.org/

and then enter "Easy CD creator" in the text box.

grant


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Subject: [parisc-linux] memory mapping and sort_extable?
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pa, 

2.6.2-rc2 doesn't boot on my c3k when running 32-bit kernel and if
CONFIG_STI_CONSOLE is not enabled. The problem seems to be that for some
reason [*] when CONFIG_STI_CONSOLE is not defined, we map all kernel
memory as r/o, so when sort_extable (in lib/extable.c) tries to
rearrange our exception tables it writes to the kernel pages and faults.

interestingly, when building a 64-bit kernel with similar config options
i don't see a fault... maybe there is something else happening there.

 From a cursory inspection, it appears that we never use to sort our
exception tables; dumping the extable from a vmlinux binary shows that
the entries are properly sorted at link time... but i haven't tried 
this on modules to see if they are also sorted. Not sure how the 
sorting is happening...  does ld do it?

Anyway, the following patch trivially removes sort_extable for parisc
and lets the kernel boot. Not yet sure if it's correct. Does anyone
know?

[*] Why do we map kernel pages as read-only? is it just to be "extra
safe"?

randolph

Index: include/asm-parisc/uaccess.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/uaccess.h,v
retrieving revision 1.12
diff -u -p -r1.12 uaccess.h
--- include/asm-parisc/uaccess.h	28 Jan 2004 05:27:46 -0000	1.12
+++ include/asm-parisc/uaccess.h	4 Feb 2004 07:16:54 -0000
@@ -66,6 +66,8 @@ struct exception_table_entry {
 	long skip;           /* pcoq skip | r9 clear flag | r8 -EFAULT flag */
 };
 
+#define ARCH_HAS_SORT_EXTABLE
+
 #define __get_user(x,ptr)                               \
 ({                                                      \
 	register long __gu_err __asm__ ("r8") = 0;      \
--- arch/parisc/mm/extable.c	2003-09-24 03:11:46.000000000 -0700
+++ arch/parisc/mm/extable.c	2004-02-03 22:58:41.000000000 -0800
@@ -0,0 +1,7 @@
+#include <asm/uaccess.h>
+
+void sort_extable(struct exception_table_entry *start,
+		  struct exception_table_entry *finish)
+{
+}
+
Index: arch/parisc/mm/Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/mm/Makefile,v
retrieving revision 1.2
diff -u -p -r1.2 Makefile
--- arch/parisc/mm/Makefile	27 Jan 2004 18:44:34 -0000	1.2
+++ arch/parisc/mm/Makefile	4 Feb 2004 07:17:20 -0000
@@ -2,4 +2,4 @@
 # Makefile for arch/parisc/mm
 #
 
-obj-y	 := init.o fault.o ioremap.o
+obj-y	 := init.o fault.o ioremap.o extable.o

-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Hi Asif,

>All wat i did was clik on the image and found that thae filw system in the
Cd
> is CDFS ..

It seems to me normal as far as we have to make cd bootable which is iirc
not purely iso std ;)

>Wat should be the file syslem of the CD ! I
guess ISO rite

Doesn't matter as far as you have to burn a raw image; it should also works
with
a raw image build with more then excellent Ignite to build a custom hpux
install cd ;)

hth,
   joel



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Hi jeol=20
I was right , as per the listings inthe  forum !=20
When I try to search - the cd's doesnt get  seacrched as ipl device!=20
Secondly when i boot from the Main muenu all i get message is=20
Booting from device=20
not ready....
=20

But the same device  works fine with HPUX OS cd..=20

Any Help !!=20


Asif=20

-----Original Message-----
From: Joel Soete [mailto:soete.joel@tiscali.be]
Sent: Wednesday, February 04, 2004 2:19 PM
To: AYAZ, MOHAMMED ASIF; Grant Grundler
Cc: parisc-linux@parisc-linux.org
Subject: RE: [parisc-linux] UNable to boot the cd.


Hi Asif,

>All wat i did was clik on the image and found that thae filw system in =
the
Cd
> is CDFS ..

It seems to me normal as far as we have to make cd bootable which is =
iirc
not purely iso std ;)

>Wat should be the file syslem of the CD ! I
guess ISO rite

Doesn't matter as far as you have to burn a raw image; it should also =
works
with
a raw image build with more then excellent Ignite to build a custom hpux
install cd ;)

hth,
   joel



-------------------------------------------------------------------------=

Tiscali ADSL: 12 mois =E0 29,50 EUR/mois! L'Internet rapide, c'est pour =
tout
le monde.
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From - Thu Nov 08 21:30:51 2018
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Hi,

I was just wondering what drivers (hardware drivers, networking options,
filesystems etc.) are actually usable in Linux/PA-RISC.
It would be interesting to know whether there are some drivers
that are not working correctly on PA-RISC (apart from the obvious ones).

So far I successfully tested (and used extensively) the following
drivers on my C240 and C3k using a 32bit kernel (and linux-2.4.24):

- SMBfs
- Autofs (v4)
- IP tunneling
- IPv6
- netfilter (iptables) and netfilter6 (ip6tables)
- Bridging
- QoS
- Traffic Shaping
- OHCI (with internal USB bus, and 5 port USB-2.0 card)
- RealTek RTL-8139 PCI Fast Ethernet (8139too)
- IBM Olympic Token Ring PCI (olympic)

Third party:
- hostap (Netgear MA311 Prism2.5 PCI card, works great, also hostapd)



Drivers that didn't work (or not of good quality):
===============
- Hermes Prism2.5 PCI (hermes, works somewhat, but flaky connection)
- EHCI (loads, but can't use a USB-2.0 HiSpeed or FullSpeed capable device,
  but using OHCI driver instead is successful)


I'd be interested if somebody else has success (or failure) reports of
drivers/fs not listed here, and reports from what's working with 2.6
(since I can't test it here)

Greetings,
  Max


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Hi Asif,

>I was right , as per the listings inthe  forum ! 
>When I try to search - the cd's doesnt get  seacrched as ipl device! 
>Secondly when i boot from the Main muenu all i get message is 
>Booting from device not ready....
 

>But the same device  works fine with HPUX OS cd.. 

For me that exclude cdrom driver pb ;)

And seems also that CD Creator can also write raw image by this method (I
have unfortunately no experience with this tool but I can check if cdrecord
exits for NT systems?).
So the last pb I can see is a pb of image corruption (during file transfer):

could you check the md5sum of your file
(if you don't have other linux box to do, on your XP you could install it
eg. with cygwin tools with <http://sources.redhat.com/cygwin/setup.exe> ;)


Cheers,
    Joel


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Hi Max,

>I'd be interested if somebody else has success (or failure) reports of
>drivers/fs not listed here, and reports from what's working with 2.6
>(since I can't test it here)

what was also working for me (I tested intensively on 2.4 only, not yet on
2.6):
- lvm (1 and now 2 aka devmapper)
- evms (tested till 1.2)
- jfs (tested till 1.0.23)
- xfs (tested till some cvs a bit outdated of Oct 2002 :( )
- ppp (still operational over a simple pstn and a 38000 bauds modem :) )

what failled to me:
- a hp 8port serial mux (afaik an Equinox product) even though that actualy
works fine plug in a hp i386 (and used as some kind console concentrator
for parisc boxes :) )
- an aty graphic card (in fact I don't know the actual status of this card,
should be broken :( )
- Tachion FC (driver should be re-write according its maintainer)

hth,
    Joel




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On Wed, 2004-02-04 at 04:43, Randolph Chung wrote:
> 2.6.2-rc2 doesn't boot on my c3k when running 32-bit kernel and if
> CONFIG_STI_CONSOLE is not enabled. The problem seems to be that for some
> reason [*] when CONFIG_STI_CONSOLE is not defined, we map all kernel
> memory as r/o, so when sort_extable (in lib/extable.c) tries to
> rearrange our exception tables it writes to the kernel pages and faults.
> 
> interestingly, when building a 64-bit kernel with similar config options
> i don't see a fault... maybe there is something else happening there.
> 
>  From a cursory inspection, it appears that we never use to sort our
> exception tables; dumping the extable from a vmlinux binary shows that
> the entries are properly sorted at link time... but i haven't tried 
> this on modules to see if they are also sorted. Not sure how the 
> sorting is happening...  does ld do it?
> 
> Anyway, the following patch trivially removes sort_extable for parisc
> and lets the kernel boot. Not yet sure if it's correct. Does anyone
> know?
> 
> [*] Why do we map kernel pages as read-only? is it just to be "extra
> safe"?

Let me have a look at this.  It sounds like a section naming issue that
differs on 32/64 bit.

Of course, you guessed that I'd only tested on a 64 bit kernel...

We need the sort extable because the generic search function (which we
now use) expects a sorted table to simplify address searches, so going
back to an unsorted one may produce unexpected results...

James




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Kernel autobuilds for 2.6 at http://cvs.parisc-linux.org/download/linux-2.6/
have been discontinued.  Patch creation will continue as usual.

I've never been able to build 64-bit kernels and now can't build
32-bit ones either since the kernel demands a newer tool chain than is
available for woody and we need that box to stay "stable".  If someone
has appropriate woody tool chain debs I'll be happy to re-start
those builds!

	-P


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On Wed, 2004-02-04 at 13:20, bame@hp.com wrote:
> Kernel autobuilds for 2.6 at http://cvs.parisc-linux.org/download/linux-2.6/
> have been discontinued.  Patch creation will continue as usual.
> 
> I've never been able to build 64-bit kernels and now can't build
> 32-bit ones either since the kernel demands a newer tool chain than is
> available for woody and we need that box to stay "stable".  If someone
> has appropriate woody tool chain debs I'll be happy to re-start
> those builds!

This was a problem with debugging code being accidentally left in the
Makefile.  The builds should run again on woody, if you want to restart
them.

James




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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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> Modified files:
> 	arch/parisc/kernel: vmlinux.lds.S 
> 	include/asm-parisc: uaccess.h 
> 
> Log message:
> Make the exception table writeable (so it can actually be sorted)
> and discard the interpreter section

jejb, this doesn't work for me..... in arch/parisc/mm/init.c we mark
everything from _stext to data_start as read-only, so i think we need
something like this:

Index: arch/parisc/kernel/vmlinux.lds.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/vmlinux.lds.S,v
retrieving revision 1.6
diff -u -p -r1.6 vmlinux.lds.S
--- arch/parisc/kernel/vmlinux.lds.S    4 Feb 2004 18:24:55 -0000       1.6
+++ arch/parisc/kernel/vmlinux.lds.S    5 Feb 2004 06:47:22 -0000
@@ -58,16 +58,17 @@ SECTIONS

   _etext = .;                  /* End of text section */

+  RODATA
+
+  /* writeable */
+  data_start = .;
+
   . = ALIGN(16);               /* Exception table */
   __start___ex_table = .;
   __ex_table : { *(__ex_table) }
   __stop___ex_table = .;

-  RODATA

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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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On Thu, 2004-02-05 at 04:20, Randolph Chung wrote:
> > Modified files:
> > 	arch/parisc/kernel: vmlinux.lds.S 
> > 	include/asm-parisc: uaccess.h 
> > 
> > Log message:
> > Make the exception table writeable (so it can actually be sorted)
> > and discard the interpreter section
> 
> jejb, this doesn't work for me..... in arch/parisc/mm/init.c we mark
> everything from _stext to data_start as read-only, so i think we need
> something like this:

OK, silly me for thinking we'd actually use the protection designation
in the ELF headers...

So with this patch it now all works?

James





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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 jejb
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Hi James,

>-- Original Message --
>To: parisc-linux-cvs@lists.parisc-linux.org
>Date: Wed,  4 Feb 2004 11:24:55 -0700 (MST)
>From: jejb@parisc-linux.org (James Bottomley)
>Reply-To: parisc-linux@lists.parisc-linux.org
>Subject: [parisc-linux-cvs] linux-2.6 jejb
>
>
>CVSROOT:	/var/cvs
>Module name:	linux-2.6
>Changes by:	jejb	04/02/04 11:24:55
>
>Modified files:
>	arch/parisc/kernel: vmlinux.lds.S 
>	include/asm-parisc: uaccess.h 
>
>Log message:
>Make the exception table writeable (so it can actually be sorted)
>and discard the interpreter section

Unfortunately it doesn't help for the pb of 2.6.[12] running 64bits on b2k
as decribe in a early mail (<http://lists.parisc-linux.org/pipermail/parisc-linux/2004-January/022238.html>)
I always have to revert the mentioned patch to make it works??

I sure it is just a work around but I haven't enough knowledge (sorry) to
fix it.

I already test another patch which Randolph suggest me (<http://lists.parisc-linux.org/pipermail/parisc-linux/2004-February/022259.html>)
but it doesn't work?

Any idea?

Thanks in advance for your attention,
    Joel

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> 
> Kernel autobuilds for 2.6 at http://cvs.parisc-linux.org/download/linux-2.6/
> have been discontinued.  Patch creation will continue as usual.

Thanks to the hard work of Carlos and Randolph, it is now possible to
build 64-bit 2.6 kernels on woody.  Autobuilds are back, and now include
A500 and C3000 (32 bit).

	-P


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Joel, can you try the kernel at http://www.tausq.org/joel/vmlinux ? It
boots on my c3k and bame's b2k. If it works for you then pls check the 
config in the same directory and see if you can figure out which 
option is causing the crash.....

btw, I assume you are building with gcc-3.0.4?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 jejb
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Hi Randolph

>Joel, can you try the kernel at http://www.tausq.org/joel/vmlinux ? It
>boots on my c3k and bame's b2k. If it works for you then pls check the 
>config in the same directory and see if you can figure out which 
>option is causing the crash.....

Thanks for your attention but it doesn't help: same behaviour (hpmc very
early) :(

> btw, I assume you are building with gcc-3.0.4?

Doesn't matter which compiler I used gcc-3.0.4 or very last toolchain with
last Carlos patch for gcc and glibc.

I am just curious to know the amount of memory on the Paul's b2k?

Thanks again for your attention and help,
    Joel

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Subject: [parisc-linux] Re: Install GNOME on 712/80
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On Thursday 05 February 2004 14:56, Jens Simmoleit wrote:
> My question would be, which packages do I need to succesfully install and run GNOME (and only Gnome) on my system? 

No idea. I use KDE.

> In addition to that, where and how must the xserver or gnome or whatever be configured to make it run properly?
> ....
> (II) FBDev(0): using default device
> (II) Running in FRAMEBUFFER Mode
> (**) FBDev(0): Depth 24, (--) framebuffer bpp 32
> (==) FBDev(0): RGB weight 888
> (==) FBDev(0): Default visual is TrueColor
> (==) FBDev(0): Using gamma correction (1.0, 1.0, 1.0)
> (II) FBDev(0): Hardware:  (vidmem: 2048k)
> (II) FBDev(0): Checking Modes against framebuffer device...
> (II) FBDev(0):  mode "1280x1024" ok
> (II) FBDev(0):  mode "1024x768" ok
> (II) FBDev(0):  mode "800x600" ok
> (II) FBDev(0): Checking Modes against monitor...
> (--) FBDev(0): Virtual size is 1280x1024 (pitch 1280)
> (**) FBDev(0): Default mode "800x600": 36.0 MHz (scaled from 0.0 MHz), 35.2
> kHz, 56.2 Hz
> (II) FBDev(0): Modeline "800x600"   36.00  800 824 896 1024  600 601 603 625
> +hsync +vsync
> (==) FBDev(0): DPI set to (75, 75)
> (**) FBDev(0): Using "Shadow Framebuffer"
> (--) Depth 24 pixmap format is 32 bpp
> Fatal server error:
> AddScreen/ScreenInit failed for driver 0

Look at the dmesg kernel log and search for a line which starts with "stifb:".
There you will see the only resolution & bpp color depth which your card
currently supports and then verify your /etc/X11/XFree86.config file to only 
have exactly those values enabled. After that change X11 should start up....

Helge


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Subject: Re: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 jejb
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Hi Paul,
>>
>> I am just curious to know the amount of memory on the Paul's b2k?
>>
>
>Mem:    505596k total

I only have 256Mb.

That was also a difference with c3k but here it is the only difference between
our b2k systems. Unfortunately I don't have any spare part to increase my
ram :(

Just in case Randolph has the opportunity to check the piminfo:

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp = 
  Fri Feb  6 07:20:26 GMT 2004    (20:04:02:06:07:20:26)

HPMC Chassis Codes = 2cbf0  2500b  2cbf5  2cbfc  

General Registers 0 - 31
00-03   0000000000000000  000000001043e000  00000000000600d0  fffffff0f0000018
04-07   0000000000438000  0000000000439000  00000000fffffff0  00000000f0002f68
08-11   0000000000000027  00000000f0072848  000000000fff0000  000000001052c538
12-15   0000000000000000  00000000ffffffff  0000000000000000  00000000f0400004
16-19   00000000f00008c4  00000000f000017c  00000000f0000174  0000000000000000
20-23   0000000000000000  00000000fee003f8  00000000fee003fd  0000000000000000
24-27   0000000000000000  0000000000065e38  0000000000065e38  0000000000065e34
28-31   0000000000100000  0000000f4c7a3298  00000000004dc100  0000000000000060

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  000000000000001f
12-15   0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19   0000000f4e0c5fee  0000000000000000  00000000001000e0  00000000702b0b30
20-23   0000000014340041  000000000f83e598  0000000000000008  0000000080000000
24-27   0000000000438000  0000000000438000  000000005fd50d56  000000007fdfdf2f
28-31   00000000ffbeffbe  00000000bfeb37dc  00000000104dc000  00000000104e0000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x00000000001000e4
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x003010bb
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00031800
System Responder Address     = 0xfffffffffed10200
System Requestor Address     = 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
04-07   00003d09ffffffff  00000078ffffffff  00000000001c9c38  ddffffffffffffff
08-11   ffffffffffffffff  bfffffffffffffff  ffffffffffffffff  ffffffffffffffff
12-15   ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffbfefffffffef
16-19   ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
20-23   ffffffffffffffff  fbfffffffffffdff  ffffffffffffffff  ffffff7fffffffff
24-27   ffffffffffffffff  ffffffffffffffbf  ffffffffffffffff  ffffffffffffffff
28-31   ffffffffffffffff  dfffffffffffffff  ffffffffffffffff  ffffffffffffffff


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81041000000000
Available Memory             = 0x0000000010000000
CPU Diagnose Register 2      = 0x0301000000802204
CPU Status Register 0        = 0x2420c20000000000
CPU Status Register 1        = 0x8080000000000000
SADD LOG                     = 0xf813ec001043e598
Read Short LOG               = 0xc18040fffee003fd
ERROR_STATUS                 = 0x0000000000000010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0xc1bff0fffed08040
RUN_DATA_LOW                 = 0xc1bff0fffed08040
RUN_CTRL                     = 0x0000021c00001418
RUN_ADDR                     = 0xc1bff0fffed08040
System Responder Path        = 0x00ffffffffffffff


HPMC PIM Analysis Information:

Timestamp = 
  Fri Feb  6 07:20:26 GMT 2004    (20:04:02:06:07:20:26)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

A Data Miss Timeout occurred while CPU 0 was
requesting information.


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not log
any additional information about the HPMC.

-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
I/D Cache Parity Info        = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000


-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  fffffff0f009d000  000000f0f000b618  00000000000f4240
04-07   0000000c6d9b6071  0000000000000004  0ffffff0f0408aa8  0000000000000002
08-11   00fffff000408ab0  00000000f0072848  000000000fff0000  00000000104f04d0
12-15   0000000000000000  00000000ffffffff  0000000000000000  00000000f0400004
16-19   00000000f00008c4  00000000f000017c  00000000f0000174  fffffff0f007ee38
20-23   fffffff0f05f0068  0000000000000004  0000000000000009  fffffff0f003d428
24-27   0000000013cf8409  000000003d090000  0000000017d78400  fffffff0f0412000
28-31   0000000017d78400  0000000000000008  fffffff0f0408d68  fffffff0f007eff8

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000960000009600  0000000000000005
12-15   0000000000000000  0000000000000000  000000f0f0003800  0000000000000000
16-19   0000000c816e9083  00000000000000f0  000000f0f000b628  00000000020008b8
20-23   000000009a37c3c1  c000000002008d10  000000ff08098f08  8000000000000000
24-27   000000000042c000  000000000042c000  00000000fffffff7  00000000fffffff7
28-31   00000000fffffff7  00000000fffffff7  0000000010495880  000000001049a000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x00000000000000f0
IIA Offset                   = 0x000000f0f000b620
CPU State                    = 0x9e000001


Memory Error Log Information:

Timestamp = 
  Fri Feb  6 07:20:26 GMT 2004    (20:04:02:06:07:20:26)


'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:

   No memory errors logged


I/O Module Error Log Information:

Timestamp = 
  Fri Feb  6 07:20:26 GMT 2004    (20:04:02:06:07:20:26)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc009   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    ----------   0x4e0cc009   ------------------
   5    ----------   0x5e0cc009   ------------------
   6    ----------   0x6e0cc009   ------------------
   7    ----------   0x7e0cc009   ------------------

Thanks a lot for attention,
    Joel





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Hi!

I had some time these days and installed my 735/99. Booting off an
external CD-Writer the "first" part was quite easy.

However, it seems neither of the two network cards (FDDI interface on a
slider card and an EISA "INP0500" network card) seems to work :(
Currently, I'm using the box with ppp over a serial cross cable...

I found one posting
(http://lists.parisc-linux.org/pipermail/parisc-linux/2003-April/019647.htm=
l)
of someone who seems to own the same box and a reply
(http://lists.parisc-linux.org/pipermail/parisc-linux/2003-April/019648.htm=
l)
of Matthew who claimed to either have this (or a similar) card working.

Matthew, is there currently a somewhat working driver for this card? I'm
now using current 2.6.x CVS.

Thanks, JBG

PS:
Here are the interesting EISA parts of dmesg's output:

9. Outfield Audio at 0xf1000000 [2/0/8] { 10, 0x0, 0x009, 0x0007f }
10. Outfield FDDI at 0xf0831000 [2/0/9] { 10, 0x0, 0x009, 0x0007d }
11. Cobra EISA BA at 0xfc000000 [4] { 11, 0x0, 0x004, 0x00076 }
12. Hardball (735/99) at 0xfffbe000 [8] { 0, 0x0, 0x203, 0x00004 }
13. Memory at 0xfffbf000 [9] { 1, 0x0, 0x019, 0x00009 }
--
Cutoff version 4 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered
Mongoose EISA Adapter found at 0xfc000000
EISA EEPROM at 0xf0810400
Enumerating EISA bus
EISA slot 1: INP0500 EISA IRQ 10=20
EISA: Probing bus 0 at parisc4
EISA: Mainboard HWPC000 detected.
EISA: slot 1 : INP0500 detected.
EISA: Detected 1 card.
SCSI subsystem initialized
STI GSC/PCI core graphics driver Version 0.9a

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
   ret =3D do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TC=
PA));

--uWA6ivsFTdIbDdzo
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: Digital signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.3 (GNU/Linux)

iD8DBQFAI1QAHb1edYOZ4bsRAkhvAJ0baaMKnIvk8B+Wxn6/7CrDIpXh6QCdGq7B
3YLLtXYVqh7tyxH9lGwoHEI=
=QxPi
-----END PGP SIGNATURE-----

--uWA6ivsFTdIbDdzo--


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From: "Jens Simmoleit" <simmel@anymotion.de>
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Subject: [parisc-linux] Re: Install GNOME on 712/80
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Hi List,

Helge, thanks for the tip. I reinstalled from scratch installed the xserver
and the gnome packages and it "works now". The gdm started up and said that
he couldn't find the font server, the config file said that also local fonts
can be used, so I isntalled those too and voila the login page appears.

:-)

But now something strange happens, I type in my user and the password at the
gnome desktop login, the screen turns black and after a certain amount of
time the box comes back with the Gnome login prompt (where I started from)?

Seems like the system isn't able to log me on, or create a profile, or
whatever?

What am i missing here????
Do I need a font server? Is there maybe (an)other missing package(s).... I'm
quite sure I have all the gnome packages here, but what about X itself,
somebody has a clue whats missing or wrong? Maybe a config file for the
user?

Any idea?

Greets,
Simmel


> Look at the dmesg kernel log and search for a line which starts with
"stifb:".
> There you will see the only resolution & bpp color depth which your card
> currently supports and then verify your /etc/X11/XFree86.config file to
only
> have exactly those values enabled. After that change X11 should start
up....
>
> Helge
>
>
> -- 
> To UNSUBSCRIBE, email to debian-hppa-request@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact
listmaster@lists.debian.org
>
>



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Subject: [parisc-linux] Additions - Install GNOME on 712/80
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Xref: news.gmane.org gmane.linux.ports.parisc:20794

Almost forgot one thing :-)

1. My mouse won't work too *argh*

> Hi List,
>
> Helge, thanks for the tip. I reinstalled from scratch installed the
xserver
> and the gnome packages and it "works now". The gdm started up and said
that
> he couldn't find the font server, the config file said that also local
fonts
> can be used, so I isntalled those too and voila the login page appears.
>
> :-)
>
> But now something strange happens, I type in my user and the password at
the
> gnome desktop login, the screen turns black and after a certain amount of
> time the box comes back with the Gnome login prompt (where I started
from)?
>
> Seems like the system isn't able to log me on, or create a profile, or
> whatever?
>
> What am i missing here????
> Do I need a font server? Is there maybe (an)other missing package(s)....
I'm
> quite sure I have all the gnome packages here, but what about X itself,
> somebody has a clue whats missing or wrong? Maybe a config file for the
> user?
>
> Any idea?
>
> Greets,
> Simmel
>
>
> > Look at the dmesg kernel log and search for a line which starts with
> "stifb:".
> > There you will see the only resolution & bpp color depth which your card
> > currently supports and then verify your /etc/X11/XFree86.config file to
> only
> > have exactly those values enabled. After that change X11 should start
> up....
> >
> > Helge
> >
> >
> > -- 
> > To UNSUBSCRIBE, email to debian-hppa-request@lists.debian.org
> > with a subject of "unsubscribe". Trouble? Contact
> listmaster@lists.debian.org
> >
> >
>
>
> -- 
> To UNSUBSCRIBE, email to debian-hppa-request@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact
listmaster@lists.debian.org
>
>



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Subject: Re: [parisc-linux] Re: Install GNOME on 712/80
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On Fri, 2004-02-06 at 10:35, Jens Simmoleit wrote:
> But now something strange happens, I type in my user and the password at the
> gnome desktop login, the screen turns black and after a certain amount of
> time the box comes back with the Gnome login prompt (where I started from)?

Gnome is a known consumer of colour resources, and it's applications
aren't very graceful when they run out (as they do with our 8 bit
framebuffer), it could be that you are simply running out of them.

You can use a true colour visual at this depth (the colours are pretty
ratty, but at least you never run out) by adding

Visual "TrueColor"

To the SubSection "Display" part that covers you.

James




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Subject: Re: [parisc-linux] Re: Install GNOME on 712/80
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Hi List, Hi James,

nope this is unfortunately not the solution to my problem :-(

But I maybe found something else. Instead of starting GDM I started the
gdmlogin and maybe it gave back a clue, look here.....

lisa:/dev/input# gdmlogin --version

Gdk-WARNING **: locale not supported by C library
Gnome gdmlogin 2.2.5.5
lisa:/dev/input#



Any idea?

Thanks for helping me,
Simmel




----- Original Message ----- 
From: "James Bottomley" <James.Bottomley@steeleye.com>
To: "Jens Simmoleit" <simmel@anymotion.de>
Cc: "PARISC list" <parisc-linux@lists.parisc-linux.org>;
<debian-hppa@lists.debian.org>
Sent: Friday, February 06, 2004 4:49 PM
Subject: Re: [parisc-linux] Re: Install GNOME on 712/80


> On Fri, 2004-02-06 at 10:35, Jens Simmoleit wrote:
> > But now something strange happens, I type in my user and the password at
the
> > gnome desktop login, the screen turns black and after a certain amount
of
> > time the box comes back with the Gnome login prompt (where I started
from)?
>
> Gnome is a known consumer of colour resources, and it's applications
> aren't very graceful when they run out (as they do with our 8 bit
> framebuffer), it could be that you are simply running out of them.
>
> You can use a true colour visual at this depth (the colours are pretty
> ratty, but at least you never run out) by adding
>
> Visual "TrueColor"
>
> To the SubSection "Display" part that covers you.
>
> James
>
>
>



From - Thu Nov 08 21:30:52 2018
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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 jejb
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> Just in case Randolph has the opportunity to check the piminfo:

did you do clearpim before the run? The values in the pim info don't
make a lot of sense.... did the box HPMC? did it hang and then you hit
the TOC button?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: RE: [parisc-linux] Additions - Install GNOME on 712/80
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Hi Jens,

>1. My mouse won't work too *argh*

2. that is why you couldn't login with your user (i presume not root) :)

X absolutely need a mouse pointer :(

iirc you should have this entry in your XF86config-4 file:
Section "InputDevice"
        Identifier      "Configured Mouse"
        Driver          "mouse"
        Option          "CorePointer"
        Option          "Device"                "/dev/psaux"
        Option          "Protocol"              "PS/2"
EndSection

Check that /dev/psaux was well created, should look like:
# ll /dev/psaux
crw-------    1 root     root      10,   1 Mar 15  2002 /dev/psaux

(if you build your own kernel check that its support is in the kernel)


 and that gpm is not running (would not disable X to start but well trouble
the behaviour of cursor).

Hth,
    Joel

PS: can you also mentioned which kernel are you using 

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Subject: Re: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 jejb
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Hi Randolph,

> did you do clearpim before the run?
Yes

> The values in the pim info don't make a lot of sense....
Not more sense with previous one I got, that's why it takes me so much time
to find  a workaround ;)

> did the box HPMC?
Yes that's what showing the small lcd on the box and seems to be confirm
by hpmc time stamp ;)

> did it hang and then you hit the TOC button?
NO. Just after the last advise of palo (... If this is the last message...)
appears very quickly the message on the lcd: hpmc init... (even if I put
printk() at the very begining of init code in main.c nothing is printed on
the serial console.

I also suspected a long time the compiler I used but recently I put this
same kernel (scp) on the N4K-550 and it boot fine (but this system has 2Gb
of ram)

And because 2.4 64bits runing fine on this system (b2k) and the pb should
be located very early at the begining of the kernel start, I had the idea
to compare head64.S and vmlinux.lds.S and find back this 2.5 patch and try
to revert it. But I very don't undurstand what happen in head64 to hope to
help more efficiently :( (sorry) 

Thanks for your attention,
    Joel


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Subject: Re: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 jejb
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On Fri, Feb 06, 2004 at 08:31:47AM +0100, Joel Soete wrote:
> -----------------  Processor 0 HPMC Information ------------------
> 
> Timestamp = 
>   Fri Feb  6 07:20:26 GMT 2004    (20:04:02:06:07:20:26)
> 
> HPMC Chassis Codes = 2cbf0  2500b  2cbf5  2cbfc  
> 
> General Registers 0 - 31
> 00-03   0000000000000000  000000001043e000  00000000000600d0  fffffff0f0000018

What does 00000000000600d0 point at?
Is that the boot loader?

> IIA Space                    = 0x0000000000000000
> IIA Offset                   = 0x00000000001000e4

Is the CPU still in real mode?
ie haven't switched to virtual mode yet?

> Check Type                   = 0x20000000
> CPU State                    = 0x9e000004
> Cache Check                  = 0x00000000
> TLB Check                    = 0x00000000
> Bus Check                    = 0x003010bb
> Assists Check                = 0x00000000
> Assist State                 = 0x00000000
> Path Info                    = 0x00031800
> System Responder Address     = 0xfffffffffed10200
> System Requestor Address     = 0xfffffffffffa0000

CPU is trying to get data from 0xfed10200
What lives there?

> A Data Miss Timeout occurred while CPU 0 was
> requesting information.

Some device wasn't responding.

> General Registers 0 - 31
> 00-03   0000000000000000  fffffff0f009d000  000000f0f000b618  00000000000f4240

looks like the box HPMC'd, and then TOC to recover.
I think GR02 is a firmware address.
...
> IIA Space                    = 0x00000000000000f0
> IIA Offset                   = 0x000000f0f000b620
> CPU State                    = 0x9e000001


> I/O Module Error Log Information:
> 
> Timestamp = 
>   Fri Feb  6 07:20:26 GMT 2004    (20:04:02:06:07:20:26)
> 
> 
> '9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:
> 
>  Rope     Word1        Word2            Word3
> ------ ------------ ------------
>    0    0x00000000   0x0e0cc009   0x00000000fed30048
>    1    0x00000000   0x1e0cc009   0x00000000fed32048

Note this is NOT the same address range that the CPU was
trying to talk to. And it looks like all the ropes are happy.
("cc" is the status or error word, IIRC)

If i had to guess, I would think Joel's box has a HW problem.
But I really don't know what's going on.

hth,
grant


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> 
> What does 00000000000600d0 point at?
> Is that the boot loader?

Yes, it's where the kernel would return to if it ever returned, so
probably palo's made the call to the kernel at that point.


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Subject: [parisc-linux] Made it - Install GNOME on 712/80
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Hi list,

I made it, there was the package gnome-session missing (lokks like I missed
that one, oops!)
Also I made a dpkg-reconfigure setlocale to C (was with POSIX??)
then I got into the profile and added export for locale and after that I
changed the .xinitrc to gnome-session
taaaadaaaaaa, works :-) at least I can login, superb....
BTW, sawfish gnome looks nice, is there another gnome you can recommend?
Also I'd be interested if it'S possible to better the performance of my gfx
system, anybody out there with a few tricks?

I'm so happy right now.......


Greets,
Simmel


----- Original Message ----- 
From: "Joel Soete" <soete.joel@tiscali.be>
To: "Jens Simmoleit" <simmel@anymotion.de>;
<parisc-linux@lists.parisc-linux.org>
Sent: Friday, February 06, 2004 5:12 PM
Subject: RE: [parisc-linux] Additions - Install GNOME on 712/80


> Hi Jens,
>
> >1. My mouse won't work too *argh*
>
> 2. that is why you couldn't login with your user (i presume not root) :)
>
> X absolutely need a mouse pointer :(
>
> iirc you should have this entry in your XF86config-4 file:
> Section "InputDevice"
>         Identifier      "Configured Mouse"
>         Driver          "mouse"
>         Option          "CorePointer"
>         Option          "Device"                "/dev/psaux"
>         Option          "Protocol"              "PS/2"
> EndSection
>
> Check that /dev/psaux was well created, should look like:
> # ll /dev/psaux
> crw-------    1 root     root      10,   1 Mar 15  2002 /dev/psaux
>
> (if you build your own kernel check that its support is in the kernel)
>
>
>  and that gpm is not running (would not disable X to start but well
trouble
> the behaviour of cursor).
>
> Hth,
>     Joel
>
> PS: can you also mentioned which kernel are you using
>
> -------------------------------------------------------------------------
> Tiscali ADSL: 12 mois  29,50 ?/mois! L'Internet rapide, c'est pour tout
> le monde.
> http://reg.tiscali.be/default.asp?lg=fr
>
>
>



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> And because 2.4 64bits runing fine on this system (b2k) and the pb should
> be located very early at the begining of the kernel start, I had the idea
> to compare head64.S and vmlinux.lds.S and find back this 2.5 patch and try
> to revert it. But I very don't undurstand what happen in head64 to hope to
> help more efficiently :( (sorry) 

Perhaps the problem is this....

in head64.S, we used to have:
        /* And the stack pointer too */
        load32          PA(init_task_union+TASK_SZ_ALGN),%sp
        [...]
        /* Save the rfi target address */
        std             %r11,  TASK_PT_GR11-TASK_SZ_ALGN(%sp)

Since the pt_regs struct used to be part of the init_task_union, we do a
store against the PA of init_task_union, and all is well.

In the new code, init_task_union is a thread_info, and in order to
store into the pt_regs we have to first dereference thread_info.task and
then store into the resulting task pointer....

        /* And the stack pointer too */
        load32          PA(init_thread_union+THREAD_SZ_ALGN),%sp
        [...]
        /* Save the rfi target address */
        ldo             -THREAD_SZ_ALGN(%sp), %r1
        ldd             TI_TASK(%r1), %r1
        std             %r11,  TASK_PT_GR11(%r1)

so now we are storing into a VA of init_thread_union.task .... oops!

So, can you try this patch?

Index: arch/parisc/kernel/head64.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head64.S,v
retrieving revision 1.3
diff -u -p -r1.3 head64.S
--- arch/parisc/kernel/head64.S	17 Jan 2004 15:00:32 -0000	1.3
+++ arch/parisc/kernel/head64.S	7 Feb 2004 06:37:57 -0000
@@ -165,9 +165,9 @@ common_stext:
 #endif /* CONFIG_SMP */
 
 	/* Save the rfi target address */
-	ldo		-THREAD_SZ_ALGN(%sp), %r1
-	ldd		TI_TASK(%r1), %r1
-	std		%r11,  TASK_PT_GR11(%r1)
+	ldd		TI_TASK-THREAD_SZ_ALGN(%sp), %r10
+	tophys_r1	%r10
+	std		%r11,  TASK_PT_GR11(%r10)
 
 #ifndef CONFIG_PDC_NARROW
 	/* Switch to wide mode; Superdome doesn't support narrow PDC
@@ -197,9 +197,9 @@ common_stext:
 
 stext_pdc_ret:
 	/* restore rfi target address*/
-	ldo		-THREAD_SZ_ALGN(%sp), %r1
-	ldd		TI_TASK(%r1), %r1
-	ldd		TASK_PT_GR11(%r1), %r11
+	ldd		TI_TASK-THREAD_SZ_ALGN(%sp), %r10
+	tophys_r1	%r10
+	ldd		TASK_PT_GR11(%r10), %r11
 
 	/* PARANOID: clear user scratch/user space SR's */
 	mtsp	%r0,%sr0

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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I just got a significant amount of updates merged with Linus, so I
thought I'd give an update on where we're at merge-wise.  I know this
is a bit detailed, but I'd appreciate you reading it (particularly if
you commit code to our CVS) since there's some questions in here.

The total size of our diff vs 2.6.3-rc1 is 441434 bytes
( 78 files changed, 7547 insertions(+), 3413 deletions(-) )

However, 3 patches were merged after 2.6.3-rc1 was released, bringing that
down to 432775 bytes
( 74 files changed, 7502 insertions(+), 3369 deletions(-) )

Of that, 229111 bytes
( 23 files changed, 5811 insertions(+), 819 deletions(-) )
is the input layer changes for ps/2 and HIL.  I'm assuming Helge's taking
care of merging that with Vojtech (thanks a lot, Helge!)

Another 163675 bytes
( 18 files changed, 1062 insertions(+), 2468 deletions(-) )
is the scsi sym2/ncr work I've been doing in this tree.  I need to finish
that and merge it with jejb.

14231 bytes ( 8 files changed, 342 insertions(+), 7 deletions(-) ) is
Carlos' compat_signal work.  This is going upstream via akpm and should
be in 2.6.4.  Excellent work, Carlos.

After taking off the files in our tree we don't want to merge upstream
(the Makefile diff and our todo list), we're left with just 22019 bytes
of diff ( 22 files changed, 225 insertions(+), 74 deletions(-) ).

Breaking that down:
drivers/ide/pci/ns87415.c: I pinged Bart about this patch last week.
drivers/net/tg3.c: Doesn't actually affect PA-RISC; I'll try to get it
	merged with jgarzik/davem this week.
drivers/net/tulip: Some of this I'll try to get merged with jgarzik,
	other bits he wants rewritten before he'll accept.
drivers/pcmcia: I believe this is jejb's work -- Shall I send it to rmk?
drivers/serial: I don't think this can go upstream, it's part of our console
	hackery.
fs/intermezzo/dir.c: Compile fix, I resent it upstream last week; they promise
	to get it merged soon.
fs/smbfs/inode.c: Compile fix for those without uid16.  I'll try and get
	it upstream this week.
include/linux/console.h: Console hackery.
include/linux/mca.h: Need to merge it upstream.
include/linux/serial_core.h: If this is still needed, it should go upstream.
kernel/printk.c: Console hackery.
kernel/resource.c: I added this.  I'll send it to l-k for discussion.
kernel/sysctl.c: Have we really removed these sysctls or is this a merge
	artifact?
sound/oss/kahlua.c: Alan says to simply disable this driver for non-x86
	as it's used for an embedded board.

... and that's it!  I think the only thing that prevents Linus' tree from
building and working on at least a subset of configurations is the console
hackery.

We're in really good shape in 2.6, thanks to all of you.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Sat, Feb 07, 2004 at 05:21:08PM +0000, Matthew Wilcox wrote:
> drivers/ide/pci/ns87415.c: I pinged Bart about this patch last week.

This patch just went into Linus' tree.

> drivers/net/tg3.c: Doesn't actually affect PA-RISC; I'll try to get it
> 	merged with jgarzik/davem this week.

Merged with davem.

> drivers/net/tulip: Some of this I'll try to get merged with jgarzik,
> 	other bits he wants rewritten before he'll accept.

The majority of our diff is now merged into jgarzik's tree.

Still some other pieces to do.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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> 14231 bytes ( 8 files changed, 342 insertions(+), 7 deletions(-) ) is
> Carlos' compat_signal work.  This is going upstream via akpm and should
> be in 2.6.4.  Excellent work, Carlos.

Thanks, that reminds me to send akpm another update, and a changelog.
 
> ... and that's it!  I think the only thing that prevents Linus' tree from
> building and working on at least a subset of configurations is the console
> hackery.
> 
> We're in really good shape in 2.6, thanks to all of you.

Thanks for all your hard work too! :)

c.



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From: Helge Deller <deller@gmx.de>
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On Saturday 07 February 2004 18:21, Matthew Wilcox wrote:
> Of that, 229111 bytes ( 23 files changed, 5811 insertions(+), 819 deletions(-) )
> is the input layer changes for ps/2 and HIL.  I'm assuming Helge's taking
> care of merging that with Vojtech (thanks a lot, Helge!)

Thanks, and thank you for do the merging stuff !
Of course I will continue with the PS/2 and as far as possible with the
HIL upstream merge.

Helge


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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [PATCH] gcc/config/pa/ftpr.c fixes for new
	TRAMPOLINE_TEMPLATE in
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> The following patch is required in gcc to add another byte check for the
> new TRAMPOLINE_TEMPLATE that has profile fixes added in glibc 2.3.2.
> I've added comments in glibc to indicate that TRAMPOLINE_TEMPLATE
> changes are bad things to do. AFAIK this is the last change *ever* since
> we now have working profile support :)
> 
> I'm not quite sure what the "-4" is intended to accomplish, I figure I
> could have prefixed the TREAMPOLINE_TEMPLATE with another jump that
> gives the right address? That still makes for an extra jump, and I'd
> rather have gcc just look in the right place first.
> 
> Thoughts on this?

I'm just back from Japan and still somewhat jet lagged.

The change to the TRAMPOLINE_TEMPLATE macro introduces an ABI change.
In spite of the extra overhead, I think it would be better to do it
in a way that didn't require a libgcc.a update.  We only do a call
to fixup when a function pointer hasn't been resolved, so the extra
overhead in using "-4" isn't huge.

If we use the "-4" feature, I can reverse the search order in fptr.c
so that the offset at "-4" is searched first.  This also allows arbitrary
changes to the code in the rest of the template.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] Re: [PATCH] gcc/config/pa/ftpr.c fixes for new
	TRAMPOLINE_TEMPLATE in
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> > I'm not quite sure what the "-4" is intended to accomplish, I figure I
> > could have prefixed the TREAMPOLINE_TEMPLATE with another jump that
> > gives the right address? That still makes for an extra jump, and I'd
> > rather have gcc just look in the right place first.
> > 
> > Thoughts on this?
> 
> I'm just back from Japan and still somewhat jet lagged.

No worries!
 
> The change to the TRAMPOLINE_TEMPLATE macro introduces an ABI change.
> In spite of the extra overhead, I think it would be better to do it
> in a way that didn't require a libgcc.a update.  We only do a call
> to fixup when a function pointer hasn't been resolved, so the extra
> overhead in using "-4" isn't huge.

How do we break ABI? How are those templates part of any ABI? If they
weren't written in ASM they'd be changing all the time (except the entry
point symbol).

An alternative is to split into two templates, one for profiling and one
for non-profiling. This would mean that the original _dl_runtime_resolve
function looks the same, while the following template is bigger.

> If we use the "-4" feature, I can reverse the search order in fptr.c
> so that the offset at "-4" is searched first.  This also allows arbitrary
> changes to the code in the rest of the template.

The only reason I wanted to change __cffc was so the bl was found on the
first loop. I later changed the glibc to include the same bl at "-4"
before the function. The "32" must remain for old applications, the "-4"
will work for new applications once that patches go into debian's glibc
(after a round of public testing).

Perhaps I'll let you catch up on all the mail I sent you :)

c.



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Subject: Re: [parisc-linux] Merge status with 2.6
Date: Sun, 8 Feb 2004 22:59:43 +0000
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On Sat, Feb 07, 2004 at 05:21:08PM +0000, Matthew Wilcox wrote:
> kernel/sysctl.c: Have we really removed these sysctls or is this a merge
> 	artifact?

Merge botch, needs to be removed from upstream.  Art Haas coincidentally
pointed this one out to me today.  It's going in via akpm.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Subject: [parisc-linux] 2.6.3-rc1 sym2 hangs on a500-65
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Matthew,
a500 (ion) hangs with /boot/vmlinux-2.6.3-rc1-pa2.
Having problems with bus reset code path.
I'll collect TOC info and make that available.

thanks,
grant


Firmware Version  42.19

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2001, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      650  MHz   Active                 Functional         750 KB 1.5 MB

  Central Bus Speed (in MHz)  :        120  
  Available Memory            :    1048576  KB
  Good Memory Required        :      25820  KB

   Primary boot path:    0/0/2/1.15          
   Alternate boot path:  0/0/1/1.15          
   Console path:         0/0/4/1.643         
   Keyboard path:        0/0/4/0.0           


---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > bo
Interact with IPL (Y, N, or Cancel)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.2 root@b2000 Tue Jan 14 13:13:07 MST 2003

Partition Start(MB) End(MB) Id Type
1               1     512   82 swap
2             513     532   f0 Palo
3             533    2048   83 ext2
4            2049    8682   83 ext2

PALO(F0) partition contains:
    0/vmlinux64 5382306 bytes @ 0x20040000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).Current command line:
3/boot/vmlinux initrd=3/boot/initrd.img root=/dev/sdb3 HOME=/ console=ttyS0 TERM=vt102
 0: 3/boot/vmlinux
 1: initrd=3/boot/initrd.img
 2: root=/dev/sdb3
 3: HOME=/
 4: console=ttyS0
 5: TERM=vt102

Edit which field?
(or 'b' to boot with this command line)? 0
3/boot/vmlinux-2.6.3-rc1-pa2
Current command line:
3/boot/vmlinux-2.6.3-rc1-pa2 initrd=3/boot/initrd.img root=/dev/sdb3 HOME=/ console=ttyS0 TERM=vt102
 0: 3/boot/vmlinux-2.6.3-rc1-pa2
 1: initrd=3/boot/initrd.img
 2: root=/dev/sdb3
 3: HOME=/
 4: console=ttyS0
 5: TERM=vt102

Edit which field?
(or 'b' to boot with this command line)? b

Command line for kernel: ' root=/dev/sdb3 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=3/boot/vmlinux-2.6.3-rc1-pa2'
Selected kernel: /boot/vmlinux-2.6.3-rc1-pa2 from partition 3
Selected ramdisk: /boot/initrd.img from partition 3
ELF64 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 3581040 mediaptr 0x1000
Segment 1 load 0046c000 size 237701 mediaptr 0x36c000
Loading ramdisk 3256320 bytes @ 3fcd2000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.3-rc1-pa2 (grundler@gsyprf11.external.hp.com) (gcc version 3.0.4) #3 Sun Feb 8 15:40:17 PST 2004
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00005e20 00000491 00000000 00000001 6df6c82e 100000f0 00000008 000000b2 000000b2
vers  00000203
CPUID vers 19 rev 8 (0x00000268)
capabilities 0x5
model 9000/800/A500-6X
Total Memory: 1024 Mb
initrd: 4fcd2000-4ffed000
initrd: reserving 3fcd2000-3ffed000 (mem_max 40000000)
On node 0 totalpages: 262144
  DMA zone: 262144 pages, LIFO batch:16
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Built 1 zonelists
Kernel command line:  root=/dev/sdb3 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=3/boot/vmlinux-2.6.3-rc1-pa2
PID hash table entries: 16 (order 4: 256 bytes)
Console: colour dummy device 160x64
Memory: 1018752k available
Calibrating delay loop... 1294.33 BogoMIPS
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Mount-cache hash table entries: 256 (order: 0, 4096 bytes)
checking if image is initramfs...it isn't (ungzip failed); looks like an initrd
POSIX conformance testing by UNIFIX
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Crescendo 650 W2 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5e2, 0x00004 }
2. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
3. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfffffffffed3c000 [0/6] { 13, 0x0, 0x782, 0x0000a }
7. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x09b, 0x00009 }
CPU(s): 1 x PA8700 (PCX-W2) at 650.000000 MHz
SBA found Astro 2.1 at 0xfffffffffed00000
lba version TR4.0 (0x5) found at 0xfffffffffed30000
iosapic: no IRTE for 0000:00:04.0 (IRQ not connected?)
lba version TR4.0 (0x5) found at 0xfffffffffed34000
lba version TR4.0 (0x5) found at 0xfffffffffed38000
lba version TR4.0 (0x5) found at 0xfffffffffed3c000
SCSI subsystem initialized
Performance monitoring counters enabled for Crescendo 650 W2
ikconfig 0.7 with /proc/config*
Initializing Cryptographic API
Soft power switch support not available.
pty: 256 Unix98 ptys configured
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 17 ports, IRQ sharing enabled
ttyS0 at MMIO 0xfffffffff8000000 (irq = 132) is a 16550A
ttyS1 at MMIO 0xfffffffff8000008 (irq = 132) is a 16450
ttyS2 at MMIO 0xfffffffff8000010 (irq = 132) is a 16550A
ttyS3 at MMIO 0xfffffffff8000030 (irq = 132) is a 16550A
ttyS4 at MMIO 0xfffffffff8000038 (irq = 132) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 1.1.13-NAPI (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
eth0: Digital DS21143 Tulip rev 65 at 0xfffffffff8006000, 00:30:6E:48:F6:40, IRQ 128.
sym0: <896> rev 0x7 at pci 0000:00:01.0 irq 129
sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18i
Using anticipatory io scheduler
sym0:0:0: ABORT operation started.
sym0:0:0: ABORT operation complete.
sym0:0:0: DEVICE RESET operation started.
sym0:0:0: DEVICE RESET operation failed.
sym0:0:0: BUS RESET operation started.
sym0:0:0: BUS RESET operation failed.
sym0:0:0: HOST RESET operation started.
sym0:0:0: HOST RESET operation failed.
scsi: Device offlined - not ready after error recovery: host 0 channel 0 id 0 lun 0
sym1: <896> rev 0x7 at pci 0000:00:01.1 irq 130
sym1: No NVRAM, ID 7, Fast-40, SE, parity checking
sym1: SCSI BUS has been reset.
sym1: SCSI BUS mode change from SE to SE.
sym1: SCSI BUS has been reset.
scsi1 : sym-2.1.18i
  Vendor: SEAGATE   Model: ST39102LC         Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym1:15:0: tagged command queuing enabled, command queue depth 16.
sym2: <875> rev 0x37 at pci 0000:00:02.0 irq 130
sym2: No NVRAM, ID 7, Fast-20, SE, parity checking
sym2: SCSI BUS has been reset.
scsi2 : sym-2.1.18i
sym3: <875> rev 0x37 at pci 0000:00:02.1 irq 131
sym3: No NVRAM, ID 7, Fast-20, SE, parity checking
sym3: SCSI BUS has been reset.
scsi3 : sym-2.1.18i
  Vendor: SEAGATE   Model: ST39102LC         Rev: 7C03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym3:15:0: tagged command queuing enabled, command queue depth 16.
sym4: <1010-66> rev 0x1 at pci 0000:30:02.0 irq 322
sym4: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym4: SCSI BUS has been reset.
scsi4 : sym-2.1.18i
  Vendor: HP        Model: D5989C            Rev: 1.03
  Type:   Processor                          ANSI SCSI revision: 02
  Vendor: HP 18.2G  Model: ST318452LC        Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:10:0: tagged command queuing enabled, command queue depth 16.
  Vendor: HP        Model: 18.2GB C 80-F612  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:11:0: tagged command queuing enabled, command queue depth 16.
  Vendor: HP 18.2G  Model: ST318452LC        Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:12:0: tagged command queuing enabled, command queue depth 16.
  Vendor: HP        Model: 9.10GB C 80-BX01  Rev: BX01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:13:0: tagged command queuing enabled, command queue depth 16.
  Vendor: HP        Model: 9.10GB C 80-BX01  Rev: BX01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:14:0: tagged command queuing enabled, command queue depth 16.
  Vendor: FUJITSU   Model: MAJ3091MC         Rev: 0111
  Type:   Direct-Access                      ANSI SCSI revision: 04
sym4:15:0: tagged command queuing enabled, command queue depth 16.
sym4:15: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
sym5: <1010-66> rev 0x1 at pci 0000:30:02.1 irq 323
sym5: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym5: SCSI BUS has been reset.
scsi5 : sym-2.1.18i
  Vendor: HP        Model: 18.2GB C 80-H008  Rev: H008
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym5:0:0: tagged command queuing enabled, command queue depth 16.
  Vendor: HP        Model: 18.2GB C 80-H008  Rev: H008
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym5:1:0: tagged command queuing enabled, command queue depth 16.
  Vendor: HP 18.2G  Model: ST318452LC        Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym5:2:0: tagged command queuing enabled, command queue depth 16.
sym5:3:0: ABORT operation started.
sym5:3:0: ABORT operation timed-out.
sym5:3:0: DEVICE RESET operation started.
sym5:3:0: DEVICE RESET operation timed-out.
sym5:3:0: BUS RESET operation started.
sym5: SCSI BUS reset detected.
sym5: SCSI BUS has been reset.
sym5:3:0: BUS RESET operation complete.
sym5:3:0: ABORT operation started.
sym5:3:0: ABORT operation timed-out.
sym5:3:0: HOST RESET operation started.
sym5: SCSI BUS has been reset.
<hang>


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Xref: news.gmane.org gmane.linux.ports.parisc:20812

On Sun, Feb 08, 2004 at 08:56:21PM -0700, Grant Grundler wrote:
> Matthew,
> a500 (ion) hangs with /boot/vmlinux-2.6.3-rc1-pa2.
> Having problems with bus reset code path.
> I'll collect TOC info and make that available.

Here is the TOC dump. I've decoded the obvious registers.

BTW, this does not appear to be a "new" problem.
The default kernel won't boot either and hangs at about the same place:
Linux version 2.6.0-test9-4-parisc64 (jejb@raven) (gcc version 3.0.4) #2 Wed Nov 5 22:30:59 CST 2003

I say "about" becuase it hangs on the *second* time it tries to reset
the bus/host when probing SCSI ID3 on the same bus.

thanks,
grant


TOC:
	GR02: 0x10118d30 cpu_idle+48
	IOAQ: 0x10118d28 cpu_idle+40

*sigh* - not very helpful.

Main Menu: Enter command or menu > ser pim


PROCESSOR PIM INFORMATION

Original Product Number:   A6889A
Current Product Number:    A6889A


-----------------  Processor 0 HPMC Information - PDC Version: 42.19  ------ 

Timestamp =    Sun Aug  31 22:06:07 GMT 2003    (20:03:08:31:22:06:07)

HPMC Chassis Codes 

       Chassis Code        Extension 
       ------------        --------- 
       0x0000082000ff6242  0x0000000000000000
       0x1800082011006312  0xcb81000000000000
       0x0000087000ff6292  0x000000f0f0000000
       0x6000082070006062  0x0000000000000010
       0x7000082070006082  0x0000000000392400
       0x7000082379006133  0xc1bff0fffed08040
       0x0000080080006310  0x0000000000000001
       0x000008008000631f  0x0000000000000000
       

General Registers 0 - 31
00-03  0000000000000000  00000000000000d4  000000001013fc8c  2d2d2d2d2d2d2d2d
04-07  202020202d2d2d2d  616821203e0a2020  5350415243212047  6d20617465206120
08-11  000000202d2d448d  0000000000000100  5f5f5f5f5f200a20  5f5f5f5f5f5f5f5f
12-15  5f5f5f5f5f5f5f5f  00000000000000fa  00000000000000f0  00000000000000ff
16-19  00000000104faa80  00000000f000022c  00000000f0002a7c  0000000000000000
20-23  000000001038ae61  000000000000000a  00000000103f8458  00000000104fb078
24-27  0000000020202000  aedef02b906416a0  00000000104fb140  202020202d2d2d2d
28-31  0000000000000109  00000000104fb130  00000000104fb140  000000001046e400


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000013e92  0000000000000000  00000000000000c0  000000000000001c
12-15  0000000000000000  0000000000000000  0000000000109000  8000000000000000
16-19  0000000b8210fabc  0000000000000000  000000001013fc94  0000000050230ec0
20-23  0000000020202020  000000002d2d448d  0000000008000000  8000000000000000
24-27  00000000003ef000  00000000004fa3c0  0000000000041020  5555555555555555
28-31  000000f0f0165670  5555555555555555  00000000104fa300  0000000010427000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          104fa490
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x000000001013fc98
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030103b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffed00000
System Requestor Address     = 0xfffffffffffa0000


Floating Point Registers 0 - 31
00-03  0413080024850e06  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  5555555555555555  5555555555555555  5555555555555555
08-11  5555555555555555  5555555555555555  5555555555555555  5555555555555555
12-15  5555555555555555  5555555555555555  5555555555555555  5555555555555555
16-19  5555555555555555  5555555555555555  5555555555555555  5555555555555555
20-23  5555555555555555  5555555555555555  0000000000000000  0000000000000000
24-27  5555555555555555  5555555555555555  5555555555555555  5555555555555555
28-31  5555555555555555  5555555555555555  5555555555555555  0000000000000002


Check Summary                = 0xcb81000000000000
Available Memory             = 0x0000000040000000
CPU Diagnose Register 2      = 0x0203000200802004
CPU Status Register 0        = 0x2420c20000000000
CPU Status Register 1        = 0x8080000000000000
SADD LOG                     = 0x500a00a0502b00b0
Read Short LOG               = 0xc18040fff8000005



-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  00000000104b6a98  0000000010118d30  0000000000000008
04-07  00000000104576a0  00000000003ba000  00000000000000f0  0000000000000000
08-11  0000000000000000  0000000000000001  000000000804000e  000000001046c5c4
12-15  00000000000000f2  00000000000000fa  00000000000000f0  00000000000000ff
16-19  00000000f0000390  00000000f000022c  00000000f0002a7c  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000073  000000004f9ec980
24-27  00000000104b73c8  0000000010424000  00000000103b89b8  00000000104576a0
28-31  000000004f9ec948  000000004f6f43f0  0000000010424280  000000000000a000


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  00000000000000c0  000000000000000c
12-15  0000000000000000  0000000000000000  000000000010b000  ff80000000000000
16-19  000002afe7374118  0000000000000000  0000000010118d24  0000000086a0201a
20-23  0000000000000000  0000000000000000  000000ff0804ff0f  8000000000000000
24-27  00000000003b9000  00000000003b9000  0000000000041020  5555555555555555
28-31  000000f0f0165670  5555555555555555  0000000010424000  0000000010428000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000010118d28
CPU State                    = 0x9e000001


--------------  Memory Error Log Information  --------------

Bus 0 Log Information

Timestamp =    Sun Aug  31 22:06:07 GMT 2003    (20:03:08:31:22:06:07)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
          X     ERR_ERROR       X            X           

Bus Requestor Address      = 0xfffffffffffa0000
Bus Target Address         = 0x0000000000000000
Bus Responder Address      = 0xfffffffffed00000

Error Status Reg           = 0x0000000000000010
Runway Control Reg         = 0x0000021c00002818
Runway Address Reg         = 0xc1bff0fffed08040
Runway Data High Reg       = 0xf8018a1ff820ca01
Runway Data Low Reg        = 0xf8018a1ff820ca01
Memory Address Reg         = 0x000001ff3fffffff
Memory Address Corr Reg    = 0x000001ff3fffffff
Memory Syndrome Reg        = 0x0000000000000000
Memory Syndrome Corr Reg   = 0x0000000000000000



 Address/Control Parity Error Registers  

   Address/Control Parity Error Bit (mem_addr_par_stat) Not Set 



------------  I/O Module Error Log Information  ------------


   No I/O module errors logged


Main Menu: Enter command or menu > 


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Hi Randolph,

>So, can you try this patch?

Yes, yes, yessss it works fine ;)

Thanks agian for great help,
    Joel

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Xref: news.gmane.org gmane.linux.ports.parisc:20814

Does there exist a java virtual machine for linux on pa-risc, and if so where might one find it?

Many thanks,

- Mick Bass

=============================================
Mick Bass


Manager
Research and Business Development
Digital Media Systems Department
HP Laboratories
Hewlett-Packard Company
825 14th Street SW
Loveland, CO 80537


970.898.6788 office    240.536.0765 fax
617.899.3938 mobile    303.494.5202 residence
bass@alum.mit.edu      mick_bass@hp.com
=============================================
 


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Hi all,

Tested with success with defconfig and 32bit kernel on b2k.
And same success with also defconfig and 64bit kernel on same b2k and N4k
(UP).

Thanks to all for this great job,
    Joel

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Hi Carlos and Dave,

I am trying my toolchain script against gcc-snapshot and glibc(2.3.3) with
respective Carlos' patches but I met some pb.

The first was against gconv_simple.c for which I find easily the follwing
patch (see <http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/iconv/gconv_simple.c.diff?r1=1.59&r2=1.60&cvsroot=glibc>)
========><========
--- iconv/gconv_simple.c.orig	2004-02-09 15:11:52.000000000 +0100
+++ iconv/gconv_simple.c	2004-02-09 16:07:16.000000000 +0100
@@ -453,9 +453,11 @@
 #if __BYTE_ORDER == __BIG_ENDIAN
   /* Sigh, we have to do some real work.  */
   size_t cnt;
+  uint32_t *outptr32 = (uint32_t *) outptr;
 
   for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4)
-    *((uint32_t *) outptr)++ = bswap_32 (*(const uint32_t *) inptr);
+    *outptr32++ = bswap_32 (*(const uint32_t *) inptr);
+  outptr = (unsigned char *) outptr32;
 
   *inptrp = inptr;
   *outptrp = outptr;
========><========

Is it correct?

The next on is more hard to me and find in _buff() from sunrpc/clnt_perr.c:
[snip]
#ifdef _RPC_THREAD_SAFE_
/*
 * Making buf a preprocessor macro requires renaming the local
 * buf variable in a few functions.  Overriding a global variable
 * with a local variable of the same name is a bad idea, anyway.
 */
#define buf ((char *)RPC_THREAD_VARIABLE(clnt_perr_buf_s))
#else
static char *buf;
#endif

static char *
_buf (void)
{
  if (buf == NULL)
    buf = (char *) malloc (256);
  return buf;
}
[snip]

which precompile as follow:
[snip]
static char *auth_errmsg (enum auth_stat stat) ;
# 63 "clnt_perr.c"
static char *
_buf (void)
{
  if (((char *)(__rpc_thread_variables()->clnt_perr_buf_s)) == ((void *)0))
    ((char *)(__rpc_thread_variables()->clnt_perr_buf_s)) = (char *) malloc
(256);
  return ((char *)(__rpc_thread_variables()->clnt_perr_buf_s));
}
[snip]

and failed with error:
clnt_perr.c: In function `_buf':
clnt_perr.c:67: error: invalid lvalue in assignment
make[2]: *** [/Develop/parisc-linux/build/glibc/sunrpc/clnt_perr.o] Error
1

Any idea?

Thanks in advance,
    Joel

PS: I just attempt this test because I read a lot of akpm patch related to
gcc-35  ;)

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On Mon, Feb 09, 2004 at 07:50:35AM -0800, Bass, Mick wrote:
> Does there exist a java virtual machine for linux on pa-risc, and if so where might one find it?


http://www.google.com/search?hl=en&lr=&ie=ISO-8859-1&q=JVM+%5Bparisc-linux+site%3Alists.parisc-linux.org&btnG=Google+Search

http://lists.parisc-linux.org/pipermail/parisc-linux/2004-January/022056.html

using the debian-hppa search page:
	http://lists.debian.org/search.html
	( Enter "JVM" and limit search to "hppa" list)

http://lists.debian.org/debian-hppa/2004/debian-hppa-200402/msg00000.html

hth,
grant



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"Joel Soete" <soete.joel@tiscali.be> writes:

> Hi Carlos and Dave,
> 
> I am trying my toolchain script against gcc-snapshot and glibc(2.3.3) with
> respective Carlos' patches but I met some pb.
> 
> The first was against gconv_simple.c for which I find easily the follwing
> patch (see <http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/iconv/gconv_simple.c.diff?r1=1.59&r2=1.60&cvsroot=glibc>)
> ========><========
> --- iconv/gconv_simple.c.orig	2004-02-09 15:11:52.000000000 +0100
> +++ iconv/gconv_simple.c	2004-02-09 16:07:16.000000000 +0100
> @@ -453,9 +453,11 @@
>  #if __BYTE_ORDER == __BIG_ENDIAN
>    /* Sigh, we have to do some real work.  */
>    size_t cnt;
> +  uint32_t *outptr32 = (uint32_t *) outptr;
>  
>    for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4)
> -    *((uint32_t *) outptr)++ = bswap_32 (*(const uint32_t *) inptr);
> +    *outptr32++ = bswap_32 (*(const uint32_t *) inptr);
> +  outptr = (unsigned char *) outptr32;
>  
>    *inptrp = inptr;
>    *outptrp = outptr;
> ========><========
> 
> Is it correct?
> 
> The next on is more hard to me and find in _buff() from sunrpc/clnt_perr.c:
> [snip]
[snip]
> Any idea?

 This patch fixes the problem:
http://sources.redhat.com/ml/libc-hacker/2004-02/msg00005.html
 
> Thanks in advance,
>     Joel
> 
> PS: I just attempt this test because I read a lot of akpm patch related to
> gcc-35  ;)

Jim


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Hi Jim,

> This patch fixes the problem:http://sources.redhat.com/ml/libc-hacker/20
>4-02/msg00005.html
 
Thanks for help,
    Joel

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I recently got a 755/99 and am wanting to get it set up.  I am having a
difficult time determining what to do however.  Ignorance of the specs, and
features of this 'new' box are making it difficult for me to decide what
course to take.  I have a 712/60 that I have worked with here and have it
working well.  Is the 755 an improvement? is it worth robbing the
Monitor/keyboard/mouse from my existing machine to use on the 755? Do I have
alternatives (can this machine be controlled/instaled with a serial
terminal)?   


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From: Ryan Bradetich <rbradetich@uswest.net>
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Hello Eric,

Let me take a quick stab at some of your questions.

1. Is the 755 an improvement over the 712/60?

It depends on your perspective...

The 755 can handle more memory and has a higher clock speed (99 MHz 
if i remember right).  The 755 is not as well supported at the 712, 
and the FW SCSI disks are known not to work (problem with the driver
not being able to deal with non-coherant IO).  The 755 also uses
the rbootd protocol to netboot instead of bootp/tftp.  The 755 does
support serial console native without a special hack (like the 712
needs). 


2. Is it work robbing the Monitor/keyboard/mouse from the existing
712/60 to use on the 755.

I doubt this world work.. the 712/60 has ps2 ports for keyboard and
mouse, and a standard 15-pin PC monitor cable.  The 755 has a HIL
keyboard mouse and keyboard and RGB ports for the monitor cable.

3. Can you use serial console instead of keyboard,mouse,keyboard.

Yes.  The 755 is considered a workstation class system, so it does not
have remote service management capabilities built into the firmware
(i.e. no ^B).  But assuming the system is up and running, the console
should work fine.  Firmware will default the console to the serial
console if the it does not detect a keyboard at boot time.

[NOTE: I do have a 755/99 ad I have had it up and running linux in the
past on a single ended disk.  I have not verified this recently though.]

Hope this helps,

- Ryan


On Mon, 2004-02-09 at 12:36, Bowman, Eric wrote:
> I recently got a 755/99 and am wanting to get it set up.  I am having a
> difficult time determining what to do however.  Ignorance of the specs, and
> features of this 'new' box are making it difficult for me to decide what
> course to take.  I have a 712/60 that I have worked with here and have it
> working well.  Is the 755 an improvement? is it worth robbing the
> Monitor/keyboard/mouse from my existing machine to use on the 755? Do I have
> alternatives (can this machine be controlled/instaled with a serial
> terminal)?   
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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Subject: Re: [parisc-linux] glibc-2.3.3 & gcc-snapshot (3.5.0) pb
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After some more hack I reach to this pb:
/Develop/parisc-linux/build/glibc/elf/ld.so.1: undefined reference to `set_dp'
collect2: ld returned 1 exit status
make[2]: *** [/Develop/parisc-linux/build/glibc/iconv/iconvconfig] Error
1
make[2]: Leaving directory `/Develop/parisc-linux/src/glibc-2.3.3-20040209/iconv'
make[1]: *** [iconv/others] Error 2
make[1]: Leaving directory `/Develop/parisc-linux/src/glibc-2.3.3-20040209'
make: *** [all] Error 2

and set_dp only appears in sysdeps/hppa/dl-machine.h

Any idea?

Thanks,
   Joel

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On Tue, Feb 10, 2004 at 05:46:08PM +0100, Joel Soete wrote:
>  
> After some more hack I reach to this pb:
> /Develop/parisc-linux/build/glibc/elf/ld.so.1: undefined reference to `set_dp'
> collect2: ld returned 1 exit status
> make[2]: *** [/Develop/parisc-linux/build/glibc/iconv/iconvconfig] Error
> 1
> make[2]: Leaving directory `/Develop/parisc-linux/src/glibc-2.3.3-20040209/iconv'
> make[1]: *** [iconv/others] Error 2
> make[1]: Leaving directory `/Develop/parisc-linux/src/glibc-2.3.3-20040209'
> make: *** [all] Error 2
> 
> and set_dp only appears in sysdeps/hppa/dl-machine.h

The wrong files are being included. What is your configure line?

c.



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Subject: Re: [parisc-linux] glibc-2.3.3 & gcc-snapshot (3.5.0) pb
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Hi Carlos,


>The wrong files are being included. What is your configure line?
As I just change gcc compiler, I don't change glibc configure options which
are:

"unset LD_LIBRARY_PATH; unset LD_RUN_PATH; \
export CC=/Develop/parisc-linux/xc/bin
hppa-linux-gcc; \
export CLFAGS="-O2 -g";  export PATH="/Develop/parisc-linux/xc/bin:$PATH";
\
/Develop/parisc-linux/src/glibc/configure --target=hppa-linux --host=hppa-linux
\
--build=hppa-linux --prefix=/opt/palinux-3.5.0/hppa-linux --without-cv \
--disable-profile --enable-hacker-mode --enable-add-ons=linuxthreads \
--with-headers=/Develop/parisc-linux/src/linux/include
"

hmm I have a look by getting an objdump of elf/dl-symaddr.o (as hppa/dl-symaddr.c
include hppa/dl-machine.h) but I don't find any set_dp? (still have to have
a look with gcc-3.3 for comparison)

Cheers,
    Joel





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>-- Original Message --
>Date: Wed, 11 Feb 2004 10:22:24 +0100
>From: "Joel Soete" <soete.joel@tiscali.be>
>Subject: Re: [parisc-linux] glibc-2.3.3 & gcc-snapshot (3.5.0) pb
>To: "Carlos O'Donell" <carlos@baldric.uwo.ca>
>Cc: "James Morrison" <ja2morri@csclub.uwaterloo.ca>,
> parisc-linux@lists.parisc-linux.org,
> "John David Anglin" <dave@hiauly1.hia.nrc.ca>
>
>
>Hi Carlos,
>
>
>The wrong files are being included. What is your configure line?
>As I just change gcc compiler, I don't change glibc configure options which
are:

"unset LD_LIBRARY_PATH; unset LD_RUN_PATH; \
export CC=/Develop/parisc-linux/xc/bin/hppa-linux-gcc; \
export CLFAGS="-O2 -g"; export PATH="/Develop/parisc-linux/xc/bin:$PATH";
\
/Develop/parisc-linux/src/glibc/configure --target=hppa-linux \
--host=hppa-linux --build=hppa-linux \
--prefix=/opt/palinux-3.5.0/hppa-linux --without-cvs \
--disable-profile --enable-hacker-mode --enable-add-ons=linuxthreads \
--with-headers=/Develop/parisc-linux/src/linux/include
"
>
[snip] (still have to have a look with gcc-3.3 for comparison)
>
with same glibc cvs src + your patch and gcc-3.3, no pb
but always same pb with gcc-snapshot (aka 3.5).

I find an interesting differnce between glibc config.h:
--- gcc-3.5.0//glibc/config.h	2004-02-11 15:07:53.667245536 +0100
+++ gcc-3.3.3//glibc/config.h	2004-02-11 15:26:00.256058928 +0100
@@ -104,7 +104,7 @@
 
 /* Define if __asm () on built-in function's prototype causes redirection
of
    the builtin.  */
-#define	HAVE_BUILTIN_REDIRECTION 1
+/* #undef	HAVE_BUILTIN_REDIRECTION */
 
 /* Define if the __thread keyword is supported.  */
 /* #undef HAVE___THREAD */

Where should look for to attempt to fix my pb?

Thanks in advance,

    Joel


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Subject: Re: [parisc-linux] glibc-2.3.3 & gcc-snapshot (3.5.0) pb
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> with same glibc cvs src + your patch and gcc-3.3, no pb
> but always same pb with gcc-snapshot (aka 3.5).
> 
> I find an interesting differnce between glibc config.h:
> --- gcc-3.5.0//glibc/config.h	2004-02-11 15:07:53.667245536 +0100
> +++ gcc-3.3.3//glibc/config.h	2004-02-11 15:26:00.256058928 +0100
> @@ -104,7 +104,7 @@
>  
>  /* Define if __asm () on built-in function's prototype causes redirection
> of
>     the builtin.  */
> -#define	HAVE_BUILTIN_REDIRECTION 1
> +/* #undef	HAVE_BUILTIN_REDIRECTION */
>  
>  /* Define if the __thread keyword is supported.  */
>  /* #undef HAVE___THREAD */
> 
> Where should look for to attempt to fix my pb?

Unknown. gcc-3.5 requires some non-trivial changes to code. You really
have to work with the gcc developers here. I tried building kernels with
3.5 but it's too much work right now, I'm sticking with the gcc-3.3
release until 3.5 matures and all the problems are understood. Stop
using gcc-snapshot to compile glibc :)

c.



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[snip]
> Stop using gcc-snapshot to compile glibc :)

Ok I will do the same.

Thanks for your attention,
    Joel

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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] Re: remove asm/keyboard.h ?
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On Wednesday 11 February 2004 06:09, Grant Grundler wrote:
> Comment in include/asm/keyboard.h says:
> 
> /*
>  *  WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
>  *  ---------------------------------------------------------------
>  *  This file will be removed as soon as we have converted
>  *  hp_psaux.c and hp_keyb.c to the input layer !

Hi Grant,

I will check that soon.... if nobody else wants to take care in the meantime.

Thanks,
Helge


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Subject: [parisc-linux] gcc-3.3 and problems in the 64 bit kernel
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our 64 bit gcc-3.3 (all versions) has a miscompilation problem that
results in a BUG() in the 64 bit kernel.  This shows up as:

 kernel BUG at mm/shmem.c:585

The problem turns out to be that gcc-3.3 is violating the OPD rules for
static functions (OPD == Official Procedure Descriptor and is supposed
to ensure that there's only one function descriptor per function,
allowing pointers to function descriptors to be compared directly
instead of having to be dereferenced).

The problem is generated because this comparison:

 if (inode->i_op->truncate == shmem_truncate) 

which is a function pointer comparison is always false.

There are several other function pointer comparisons in the kernel which
are in danger of failing in this manner, so the resulting kernel will
not operate correctly.

Hopefully, the gcc people will be able to fix this, but in the mean time
people should stick to gcc-3.0 to compile 64 bit kernels.  (gcc-3.3 is
fine for 32 bit parisc kernels).

James




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Hi Carlos,

I find a better reason why the build of glibc failed with gcc-3.5: here is
the dump of rtld.os (which would contains ref to set_dp):
with gcc-3.3
------------
palx2000:/Develop/parisc-linux/build/glibc# objdump -d ./elf/rtld.os | more

./elf/rtld.os:     file format elf32-hppa-linux

Disassembly of section .text:

00000000 <set_dp>:
       0:	4b 54 00 48 	ldw 24(,r26),r20
       4:	0e 88 10 9b 	ldw 4(,r20),dp
       8:	e8 40 c0 00 	bv r0(rp)
       c:	08 1a 02 5c 	copy r26,ret0

00000010 <_start>:
      10:	37 de 00 80 	ldo 40(sp),sp
      14:	6b d9 3f b1 	stw r25,-28(,sp)
      18:	6b d8 3f a9 	stw r24,-2c(,sp)
      1c:	ea 60 00 00 	b,l 24 <_start+0x14>,r19
      20:	d6 60 1c 1e 	depwi 0,31,2,r19
      24:	2a 60 00 00 	addil 0,r19,%r1
      28:	34 3a 00 00 	ldo 0(r1),r26
      2c:	2a 60 00 00 	addil 0,r19,%r1
      30:	48 34 00 00 	ldw 0(,r1),r20
      34:	0a 9a 04 14 	sub r26,r20,r20
      38:	0f 50 10 b3 	ldw,ma 8(,r26),r19
      3c:	86 66 20 12 	cmpib,=,n 3,r19,4c <_start+0x3c>
      40:	8e 60 3f ef 	cmpib,<>,n 0,r19,3c <_start+0x2c>
      44:	0f 50 10 b3 	ldw,ma 8(,r26),r19
      48:	04 00 00 00 	iitlbp r0,(sr0,r0)
      4c:	0f 59 10 93 	ldw -4(,r26),r19
      50:	0a 93 06 13 	add r19,r20,r19
      54:	e8 40 07 f0 	b,l 454 <_dl_start>,rp
      58:	37 1a 3f f9 	ldo -4(r24),r26

========><========

with gcc-3.5
------------
palx4000:/Develop/parisc-linux/build/glibc# objdump -d ./elf/rtld.os | more

./elf/rtld.os:     file format elf32-hppa-linux

Disassembly of section .text:

00000000 <_start>:
       0:	37 de 00 80 	ldo 40(sp),sp
       4:	6b d9 3f b1 	stw r25,-28(sp)
       8:	6b d8 3f a9 	stw r24,-2c(sp)
       c:	ea 60 00 00 	b,l 14 <_start+0x14>,r19
      10:	d6 60 1c 1e 	depwi 0,31,2,r19
      14:	2a 60 00 00 	addil 0,r19,%r1
      18:	34 3a 00 00 	ldo 0(r1),r26
      1c:	2a 60 00 00 	addil 0,r19,%r1
      20:	48 34 00 00 	ldw 0(r1),r20
      24:	0a 9a 04 14 	sub r26,r20,r20
      28:	0f 50 10 b3 	ldw,ma 8(,r26),r19
      2c:	86 66 20 12 	cmpib,=,n 3,r19,3c <_start+0x3c>
      30:	8e 60 3f ef 	cmpib,<>,n 0,r19,2c <_start+0x2c>
      34:	0f 50 10 b3 	ldw,ma 8(,r26),r19
      38:	04 00 00 00 	iitlbp r0,(sr0,r0)
      3c:	0f 59 10 93 	ldw -4(,r26),r19
      40:	0a 93 06 13 	add r19,r20,r19
      44:	e8 41 02 84 	b,l 318c <_dl_start>,rp
      48:	37 1a 3f f9 	ldo -4(r24),r26

Why ref to <set_dp> is removed by gcc-3.5?
Is there a new optimization in gcc which remove "defined but not used" in
resulting obj?

Should I log a pb near gcc team?

Thanks again,
    Joel


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Subject: [parisc-linux] can't compile 2.4.24: pdc_cons.o problem!
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Hi,

I'm trying to compile a new kernel for K210. I tried both stable 2.4.24 and 2.4.23
(got them by "apt-get -t stable kernel-source-2.4.2x")

"make bzImage" fails with the following output:

arch/parisc/kernel/pdc_cons.o: In function `pdc_console_die':
arch/parisc/kernel/pdc_cons.o(.text.pdc_console_die+0x28): undefined reference
to `log_end'
arch/parisc/kernel/pdc_cons.o(.text.pdc_console_die+0x2c): undefined reference
to `log_end'
arch/parisc/kernel/pdc_cons.o(.text.pdc_console_die+0x38): undefined reference
to `con_start'
arch/parisc/kernel/pdc_cons.o(.text.pdc_console_die+0x3c): undefined reference
to `con_start'
arch/parisc/kernel/pdc_cons.o: In function `pdc_console_restart':
arch/parisc/kernel/pdc_cons.o(.text.pdc_console_restart+0x44): undefined
reference to `log_end'
arch/parisc/kernel/pdc_cons.o(.text.pdc_console_restart+0x48): undefined
reference to `log_end'
arch/parisc/kernel/pdc_cons.o(.text.pdc_console_restart+0x4c): undefined
reference to `con_start'
arch/parisc/kernel/pdc_cons.o(.text.pdc_console_restart+0x50): undefined
reference to `con_start'
ld: arch/parisc/kernel/kernel.o(.text.show_trace+0x58): fixing R_PARISC_DPREL21L
make: *** [vmlinux] Error 1	

Please tell me what kernel version can be compiled for PDC support? I compiled
2.4.20 without any problems! As far as I understand, pre-compiled kernels are
compiled without any  PDC console support. Thanks in advance for any help, I'm
not a Debian kernel guru. :-)

BR,
Dub


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Subject: Re: [parisc-linux] can't compile 2.4.24: pdc_cons.o problem!
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On Fri, Feb 13, 2004 at 08:06:12PM +0200, dub@latnet.lv wrote:
> Hi,
> 
> I'm trying to compile a new kernel for K210. I tried both stable 2.4.24 and 2.4.23
> (got them by "apt-get -t stable kernel-source-2.4.2x")

the problem you're having is that you're trying to compile a kernel
that really doesn't support parisc.  i suggest either getting the
latest CVS kernel (see http://www.parisc-linux.org/faq/cvs.html) or
kernel-patch-2.4.21-hppa from the debian archive.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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> 00000000 <set_dp>:
>        0:	4b 54 00 48 	ldw 24(,r26),r20
>        4:	0e 88 10 9b 	ldw 4(,r20),dp
>        8:	e8 40 c0 00 	bv r0(rp)
>        c:	08 1a 02 5c 	copy r26,ret0
> 
> Should I log a pb near gcc team?

Aggressive inlining, and inlining mistakes might cause the function to 
disapper. Unless you can produce a *small* testcase the gcc team will
not look at the bug. You can't say "glibc doesn't build with gcc-3.5"
... well I guess you can, but nobody will have a clue how to fix the
issue.

Cheers,
Carlos.



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Subject: Re: [parisc-linux] glibc-2.3.3 & gcc-snapshot (3.5.0) pb
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On Fri, Feb 13, 2004 at 02:49:08PM -0500, Carlos O'Donell wrote:
> Aggressive inlining, and inlining mistakes might cause the function to 
> disapper. Unless you can produce a *small* testcase the gcc team will
> not look at the bug. You can't say "glibc doesn't build with gcc-3.5"
> ... well I guess you can, but nobody will have a clue how to fix the
> issue.

And he should say *something*.
Pointing at the problem is a first step towards fixing it.
Don't wait until you have a "small" test case to point out a problem
since one might never (have time to) find one.

Even though I fix very few bugs these days, I'm grateful for
every bug report.

grant


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Grant Grundler wrote:
> On Fri, Feb 13, 2004 at 02:49:08PM -0500, Carlos O'Donell wrote:
> 
>>Aggressive inlining, and inlining mistakes might cause the function to 
>>disapper. Unless you can produce a *small* testcase the gcc team will
>>not look at the bug. You can't say "glibc doesn't build with gcc-3.5"
>>... well I guess you can, but nobody will have a clue how to fix the
>>issue.
> 
I understand, so better try to find a fix myself?
In the mean time, as James find the shmem BUG(), I take a more to time to look for gcc ml archive ;)
And I find on gcc-help a another pb of asm inlining <http://gcc.gnu.org/ml/gcc-help/2004-02/msg00076.html>
and advise of change <http://gcc.gnu.org/ml/gcc-help/2004-02/msg00077.html>.
If I don't reach to find an elegant solution, can I also address some messages on gcc-help ml?
> 
> And he should say *something*.
> Pointing at the problem is a first step towards fixing it.
> Don't wait until you have a "small" test case to point out a problem
> since one might never (have time to) find one.
> 
> Even though I fix very few bugs these days, I'm grateful for
> every bug report.
> 
Thanks to all for advise and attention,
	Joel


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> > Aggressive inlining, and inlining mistakes might cause the function to 
> > disapper. Unless you can produce a *small* testcase the gcc team will
> > not look at the bug. You can't say "glibc doesn't build with gcc-3.5"
> > ... well I guess you can, but nobody will have a clue how to fix the
> > issue.
> 
> And he should say *something*.
> Pointing at the problem is a first step towards fixing it.
> Don't wait until you have a "small" test case to point out a problem
> since one might never (have time to) find one.
> 
> Even though I fix very few bugs these days, I'm grateful for
> every bug report.

I was too harsh, sorry for that, you should really submit a bug report
saying that glibc 2.3.3 doesn't build with gcc-3.5 on hppa-linux. It's
the truth, and you don't know why. The best you can do is list the 
steps you used to recreate the problem.

Thanks for setting me straight Grant! :)

c.



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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc-2.3.3 & gcc-snapshot (3.5.0) pb
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To: Carlos O'Donell <carlos@baldric.uwo.ca>
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Carlos O'Donell wrote:
>>>Aggressive inlining, and inlining mistakes might cause the function to 
>>>disapper. Unless you can produce a *small* testcase the gcc team will
>>>not look at the bug. You can't say "glibc doesn't build with gcc-3.5"
>>>... well I guess you can, but nobody will have a clue how to fix the
>>>issue.
>>
>>And he should say *something*.
>>Pointing at the problem is a first step towards fixing it.
>>Don't wait until you have a "small" test case to point out a problem
>>since one might never (have time to) find one.
>>
>>Even though I fix very few bugs these days, I'm grateful for
>>every bug report.
> 
> 
> I was too harsh, sorry for that, you should really submit a bug report
> saying that glibc 2.3.3 doesn't build with gcc-3.5 on hppa-linux. It's
> the truth, and you don't know why. The best you can do is list the 
> steps you used to recreate the problem.
> 
Ok, I will try to report as much detail as I can.

Thanks for all,
	Joel


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From: Elliott Potter <epotter@eep.burdell.org>
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Subject: [parisc-linux] C3000 video options
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Hello all,

I just got my fancy new Visualize C3000 workstation and am busily
installing linux on it.  Whee!  So far, things have gone smoothly but I
I've come across the issue that the computer has an fx4 graphics card,
which is apparently unsupported.  I stared at list archives for a while
and found that the A4977A Visualize EG card is supported, and I'm
working on picking up one of those.  But it seems a shame to take this
nice 64-bit PCI generally kick-butt card out and stuff in an entry-level
32-bit PCI card with 8-bit color depth.  Are there other options?  So
far I've seen:

1) At some point, hp released the fx5 and fx10 graphics adapters, which
replaced the fx4 and fx6 cards, and said that they would be supported
under Linux.  But they accomplished that by releasing a binary form of
its proprietary X server, which is no longer supported.  The Customer
Advisory:
http://wwss1pro.compaq.com/support/reference_library/viewdocument.asp?source=WV031007_CW01.xml&dt=3
suggests that "customers can purchase current graphics adapters that are
more powerful than hp fx5 or fx10 graphics adapters for a fraction of
the original cost."  But they don't say (for example) what graphics
adapters, or if they have linux support.  Did they come out with
something?

2) Someone posted on the list that you could get a PCI Nvidia Voodoo2
card and maybe it would work, but when he tried it he got nothing except
corrupted nvram.  That doesn't sound very promising, but I thought I'd
ask.

3) There are other PCI graphics cards (even 64-bit PCI) out there that
work on other *nix systems (AS/*****, SUN, etc.); is everyone's (or just
HP's) firmware so different that one has to get a graphics card just for
the HP?



TIA,
--
Elliott



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Subject: Re: [parisc-linux] C3000 video options
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On Sat, 14 Feb 2004, Elliott Potter wrote:

> Hello all,

[...]

> 1) At some point, hp released the fx5 and fx10 graphics adapters, which
> replaced the fx4 and fx6 cards, and said that they would be supported
> under Linux.  But they accomplished that by releasing a binary form of
> its proprietary X server, which is no longer supported.  The Customer

It's ix86-Linux only.

> 2) Someone posted on the list that you could get a PCI Nvidia Voodoo2
> card and maybe it would work, but when he tried it he got nothing except
> corrupted nvram.  That doesn't sound very promising, but I thought I'd
> ask.

Someone tried Voodoo2, but no success report so far.

Somebody had success with a ATI Rage XL graphics card and a 2.4.22 kernel
(and a special no-bios patch). He had some colour issues 'though.
Unfortunatelty the patch doesn't work on the 2.4.24 kernel anymore;
I contacted the developer of this patch, and he said he's busy with some
other things, and porting it to 2.4.24 (or even 2.6) will be low priority.

> 3) There are other PCI graphics cards (even 64-bit PCI) out there that
> work on other *nix systems (AS/*****, SUN, etc.); is everyone's (or just
> HP's) firmware so different that one has to get a graphics card just for
> the HP?

You'll be lucky to get any (ix86) PCI graphics card working on Linux/PA-RISC.
The best bet would be to get a Visualize-EG, or some graphics card that
doesn't require initialization via (ix86-)BIOS (eg. Matrox Millenium).

Greetings,
  Max


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From: Elliott Potter <epotter@eep.burdell.org>
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Subject: Re: [parisc-linux] C3000 video options
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> On Sat, 14 Feb 2004, Elliott Potter wrote:
>
> > Hello all,
>
> [...]
>
> > 3) There are other PCI graphics cards (even 64-bit PCI) out there that
> > work on other *nix systems (AS/*****, SUN, etc.); is everyone's (or just
> > HP's) firmware so different that one has to get a graphics card just for
> > the HP?
>
> You'll be lucky to get any (ix86) PCI graphics card working on Linux/PA-RISC.
> The best bet would be to get a Visualize-EG, or some graphics card that
> doesn't require initialization via (ix86-)BIOS (eg. Matrox Millenium).

I had secretly hoped that an Open Firmware card would work, because
there are several reasonable cards out there that fit in newer Apples
and Suns.  But I haven't found anything indicating that they would.

Now the Matrox Millenium -- I've got one of those; the original MGA
Millenium.  Is that the one you mean?  Do other (newer) Matrox cards
also do this (such as the G450)?  I don't know how you tell that the
card doesn't require initialization via x86 BIOS.

Now I'm excited!  I'm going to stick the Matrox card in there and see
what happens.

Thanks,
--
Elliott



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On Sat, 14 Feb 2004, Elliott Potter wrote:

> > You'll be lucky to get any (ix86) PCI graphics card working on Linux/PA-RISC.
> > The best bet would be to get a Visualize-EG, or some graphics card that
> > doesn't require initialization via (ix86-)BIOS (eg. Matrox Millenium).
>
> I had secretly hoped that an Open Firmware card would work, because
> there are several reasonable cards out there that fit in newer Apples
> and Suns.  But I haven't found anything indicating that they would.

HP-UX/PA-RISC doesn't use Open Firmware.

> Now the Matrox Millenium -- I've got one of those; the original MGA
> Millenium.  Is that the one you mean?  Do other (newer) Matrox cards
> also do this (such as the G450)?  I don't know how you tell that the
> card doesn't require initialization via x86 BIOS.

Read the user manual:
http://www.matrox.com/mga/support/user_manuals/mill/milleng.pdf

Nobody tried to get a Matrox Millenium working on Linux/PA-RISC IIRC.
But the chances are good (works on PPC, SPARC etc.)

You should/have to use the matroxfb kernel driver.
Try to set the dip switches to "VGA disable", and maybe pass the
"noinit" and/or "nobios" options to the linux boot prompt.

The G450 is supported by the matroxfb driver, but I don't know whether
it can be initialized by the kernel driver, or whether this is just
limited to the old Matrox Millenium (2064W chipset).

> Now I'm excited!  I'm going to stick the Matrox card in there and see
> what happens.

Good luck!
I'm really interested in getting a PCI graphics card to work myself.

Greetings,
 Max


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Subject: [parisc-linux] kernel dies: [Was: C3000 video options]
Date: Sun, 15 Feb 2004 00:54:28 -0500 (EST)
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Well ... I'm working on this PCI graphics card problem, and needed to
recompile the kernel.  I got the 2.4.24-pa0 kernel and built it, but
when I boot I get:

[...]
Found devices:
1. Astro BC Runway Port (12) at 0xfed00000 [10], versions 0x582, 0x0,
0xb
2. Elroy PCI Bridge (13) at 0xfed30000 [10/0], versions 0x782, 0x0, 0xa
3. Elroy PCI Bridge (13) at 0xfed32000 [10/1], versions 0x782, 0x0, 0xa
4. Elroy PCI Bridge (13) at 0xfed38000 [10/4], versions 0x782, 0x0, 0xa
5. Elroy PCI Bridge (13) at 0xfed3c000 [10/6], versions 0x782, 0x0, 0xa
6. AllegroHigh W (0) at 0xfffa0000 [32], versions 0x5bb, 0x0, 0x4
7. Memory (1) at 0xfed10200 [49], versions 0x86, 0x0, 0x9
CPU(s): 1 x PA8500 (PCX-W) at 400.000000 MHz
SBA found Astro 2.1 at 0xfed00000
lba version TR2.1 (0x2) found at 0xfed30000
PCI: Ignoring BAR0-3 of IDE controller 00:0e.0
lba version TR2.1 (0x2) found at 0xfed32000
lba version TR2.1 (0x2) found at 0xfed38000
lba version TR2.1 (0x2) found at 0xfed3c000
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch enabled, polling @ 0xf0400804.
Starting kswapd
Journalled Block Device driver loaded
matroxfb: Matrox Millennium (PCI) detected

Stack Dump:
 11b38880:  0004ff0f 1039d778 00000000 10398010
 11b38870:  00000000 10232234 1035af00 00000000
 11b38860:  11b3e400 00000000 11b38000 102dcc0c
 11b38850:  10305810 00800000 0000000f 1035ae34
 11b38840:  1035b0b8 00000000 00000000 00000000
 11b38830:  00000000 1021d660 00000000 00000007

Kernel addresses on the stack:
 [<10232234>]  [<1021d660>]  [<1022c010>]  [<1022cc78>]
 [<10139068>]  [<1021d054>]  [<1021d11c>]  [<101001a8>]
 [<10107c4c>]  [<10107cf4>]  [<10165bc4>]  [<10165bc4>]
 [<10166188>]  [<10166188>]  [<1010019c>]  [<10166418>]
 [<1011f8f0>]

Kernel Fault: Code=15 regs=11b38880 (Addr=f2001fde)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 1035b010 1022c098 00800000
r04-07  1035b0b8 1035ae34 1035b0b8 f2800000
r08-11  f2000000 1035a810 fffffffa 1035b010
r12-15  10309010 103d3ac8 00000000 f0400004
r16-19  f00008c4 f000017c f0000174 00000003
r20-23  f2000000 1035b0b8 00000001 11b38810
r24-27  f2800000 1035b7f0 00800000 102ee010
r28-31  00000000 fed32000 11b38880 1022c010
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1022bb44 1022bb48
 IIR: 62933fbc    ISR: 00000000  IOR: f2001fde
 CPU:        0   CR30: 11b38000 CR31: 103a8000
 ORIG_R28: 00000000

... and then it dies.  Searching on the internet for "Kernel Fault:
Code=15" I see a few e-mails that went around 3 or 4 years ago but
nothing current.  Does that mean this is a solved problem?



As far as making the Matrox Millennium go, the firmware doesn't appear
know what to do with the card, so it sticks to serial console.  From
there we can see:

information -> sysconfig says:
[...]
        I/O Slot  Card Type
        --------  -------------------------------
            1     empty
            2     empty
            3     empty
            4     empty
            5     empty
            6     VGA         Vendor ID = 0x102b  Device ID = 0x0519


information -> io says:
                                                                     IODC
IODC
Path         Decimal     Type                  Location   HVER SVER
Vers Dep
------------ ----------- --------------------- ---------- ---- ----
---- ----
LAN          10/0/12/0   Ethernet              built-in   0060 a200
0x02 0x00
AUDIO        10/0/13/0   Audio                 built-in
IDE          10/0/14/0   IDE                   built-in   0060 a300
0x00 0x00
SUPERIO MISC 10/0/14/1   Bridge Device         built-in
FLOPPY       10/0/14/1/0 Floppy Disk           built-in
SERIAL_1     10/0/14/1/1 RS232 Port            built-in   0060 8c00
0x01 0x00
SERIAL_2     10/0/14/1/2 RS232 Port            built-in   0060 8c00
0x01 0x00
PARALLEL     10/0/14/1/3 Parallel Port         built-in
USB          10/0/14/2   USB                   built-in   0060 a900
0x98 0x00
SCSI         10/0/15/0   SCSI                  built-in   0060 a300
0x00 0x00
FWSCSI       10/0/15/1   SCSI                  built-in   0060 a300
0x00 0x00
PCI6         10/1/6/0    VGA                   slot 6     (no firmware
driver)


(sorry about the wrapping; basically it sees the card, knows it's a VGA
card, but has no firmware driver for it).

And now it's 1am so I'm going to stop.  But my goal is to make this go
:)
--
Elliott



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Subject: Re: [parisc-linux] C3000 video options
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Xref: news.gmane.org gmane.linux.ports.parisc:20844

On Sunday 15 February 2004 04:36, M. Grabert wrote:
> > 2) Someone posted on the list that you could get a PCI Nvidia Voodoo2
> > card and maybe it would work, but when he tried it he got nothing except
> > corrupted nvram.  That doesn't sound very promising, but I thought I'd
> > ask.
> 
> Someone tried Voodoo2, but no success report so far.

I tested/fixed Vodoo2 and it should work with kernel 2.4 and 2.6 on HPPA.
Maximum resolution is 800x600 @16bpp though.

> Somebody had success with a ATI Rage XL graphics card and a 2.4.22 kernel
> (and a special no-bios patch). He had some colour issues 'though.
> Unfortunatelty the patch doesn't work on the 2.4.24 kernel anymore;
> I contacted the developer of this patch, and he said he's busy with some
> other things, and porting it to 2.4.24 (or even 2.6) will be low priority.

The "no-card-bios" patch is at least in kernel 2.6 and I tried it recently 
with a ATI Mach64 w/ 2MB (not XL!!). I got some crashes, but chances 
are pretty high that this could be made work.
 
Helge


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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] kernel dies: [Was: C3000 video options]
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Elliott Potter wrote:
> Well ... I'm working on this PCI graphics card problem, and needed to
> recompile the kernel.  I got the 2.4.24-pa0 kernel and built it, but
> when I boot I get:
> 
> [...]
> Found devices:
> 1. Astro BC Runway Port (12) at 0xfed00000 [10], versions 0x582, 0x0,
> 0xb
> 2. Elroy PCI Bridge (13) at 0xfed30000 [10/0], versions 0x782, 0x0, 0xa
> 3. Elroy PCI Bridge (13) at 0xfed32000 [10/1], versions 0x782, 0x0, 0xa
> 4. Elroy PCI Bridge (13) at 0xfed38000 [10/4], versions 0x782, 0x0, 0xa
> 5. Elroy PCI Bridge (13) at 0xfed3c000 [10/6], versions 0x782, 0x0, 0xa
> 6. AllegroHigh W (0) at 0xfffa0000 [32], versions 0x5bb, 0x0, 0x4
> 7. Memory (1) at 0xfed10200 [49], versions 0x86, 0x0, 0x9
> CPU(s): 1 x PA8500 (PCX-W) at 400.000000 MHz
> SBA found Astro 2.1 at 0xfed00000
> lba version TR2.1 (0x2) found at 0xfed30000
> PCI: Ignoring BAR0-3 of IDE controller 00:0e.0
> lba version TR2.1 (0x2) found at 0xfed32000
> lba version TR2.1 (0x2) found at 0xfed38000
> lba version TR2.1 (0x2) found at 0xfed3c000
> POSIX conformance testing by UNIFIX
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Initializing RT netlink socket
> Soft power switch enabled, polling @ 0xf0400804.
> Starting kswapd
> Journalled Block Device driver loaded
> matroxfb: Matrox Millennium (PCI) detected
> 
> Stack Dump:
>  11b38880:  0004ff0f 1039d778 00000000 10398010
>  11b38870:  00000000 10232234 1035af00 00000000
>  11b38860:  11b3e400 00000000 11b38000 102dcc0c
>  11b38850:  10305810 00800000 0000000f 1035ae34
>  11b38840:  1035b0b8 00000000 00000000 00000000
>  11b38830:  00000000 1021d660 00000000 00000007
> 
> Kernel addresses on the stack:
>  [<10232234>]  [<1021d660>]  [<1022c010>]  [<1022cc78>]
>  [<10139068>]  [<1021d054>]  [<1021d11c>]  [<101001a8>]
>  [<10107c4c>]  [<10107cf4>]  [<10165bc4>]  [<10165bc4>]
>  [<10166188>]  [<10166188>]  [<1010019c>]  [<10166418>]
>  [<1011f8f0>]
> 
> Kernel Fault: Code=15 regs=11b38880 (Addr=f2001fde)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111 Not tainted
> r00-03  00000000 1035b010 1022c098 00800000
> r04-07  1035b0b8 1035ae34 1035b0b8 f2800000
> r08-11  f2000000 1035a810 fffffffa 1035b010
> r12-15  10309010 103d3ac8 00000000 f0400004
> r16-19  f00008c4 f000017c f0000174 00000003
> r20-23  f2000000 1035b0b8 00000001 11b38810
> r24-27  f2800000 1035b7f0 00800000 102ee010
> r28-31  00000000 fed32000 11b38880 1022c010
> sr0-3   00000000 00000000 00000000 00000000
> sr4-7   00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 1022bb44 1022bb48
>  IIR: 62933fbc    ISR: 00000000  IOR: f2001fde
>  CPU:        0   CR30: 11b38000 CR31: 103a8000
>  ORIG_R28: 00000000
> 
> ... and then it dies.  Searching on the internet for "Kernel Fault:
> Code=15" I see a few e-mails that went around 3 or 4 years ago but
> nothing current.  Does that mean this is a solved problem?
> 
Have a look in arch/parisc/kernel/traps.c:
[snip]
         case 15:
                 /* Data TLB miss fault/Data page fault */
                 /* Fall thru */
[snip]

With 2.6 you would get more on kernel stack dump; never the less with 2.4 you could submit this text to dump_analyser.sh (see: 
http://cvs.parisc-linux.org/build-tools/ it requires also a.c). It will give you more detail on IAOQ, GR2, ...

> 
> 
> As far as making the Matrox Millennium go, the firmware doesn't appear
> know what to do with the card, so it sticks to serial console.  From
> there we can see:
> 
> information -> sysconfig says:
> [...]
>         I/O Slot  Card Type
>         --------  -------------------------------
>             1     empty
>             2     empty
>             3     empty
>             4     empty
>             5     empty
>             6     VGA         Vendor ID = 0x102b  Device ID = 0x0519
> 
> 
> information -> io says:
>                                                                      IODC
> IODC
> Path         Decimal     Type                  Location   HVER SVER
> Vers Dep
> ------------ ----------- --------------------- ---------- ---- ----
> ---- ----
> LAN          10/0/12/0   Ethernet              built-in   0060 a200
> 0x02 0x00
> AUDIO        10/0/13/0   Audio                 built-in
> IDE          10/0/14/0   IDE                   built-in   0060 a300
> 0x00 0x00
> SUPERIO MISC 10/0/14/1   Bridge Device         built-in
> FLOPPY       10/0/14/1/0 Floppy Disk           built-in
> SERIAL_1     10/0/14/1/1 RS232 Port            built-in   0060 8c00
> 0x01 0x00
> SERIAL_2     10/0/14/1/2 RS232 Port            built-in   0060 8c00
> 0x01 0x00
> PARALLEL     10/0/14/1/3 Parallel Port         built-in
> USB          10/0/14/2   USB                   built-in   0060 a900
> 0x98 0x00
> SCSI         10/0/15/0   SCSI                  built-in   0060 a300
> 0x00 0x00
> FWSCSI       10/0/15/1   SCSI                  built-in   0060 a300
> 0x00 0x00
> PCI6         10/1/6/0    VGA                   slot 6     (no firmware
> driver)
> 
> 
> (sorry about the wrapping; basically it sees the card, knows it's a VGA
> card, but has no firmware driver for it).
> 
> And now it's 1am so I'm going to stop.  But my goal is to make this go
> :)

May be switch to 2.6 ;)

hth,
	Joel

PS: I also try a ATI XL with 'no-bios' patch and reach to load module without system crash.
Unfortunately this card seems to be broken :_) (screen stay black) and without other spare part available I had to stop :(


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] C3000 video options
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On Sul, 2004-02-15 at 09:27, Helge Deller wrote:
> I tested/fixed Vodoo2 and it should work with kernel 2.4 and 2.6 on HPPA.
> Maximum resolution is 800x600 @16bpp though.

1024x768@16bpp on Voodoo2, 800x600 on Voodoo1.




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On Sul, 2004-02-15 at 03:36, M. Grabert wrote:
> Someone tried Voodoo2, but no success report so far.

Voodoo2 fb works for some cards. I'm currently debugging an accelerated
2D Voodoo2 driver that should work bi-endian with some tiny fixes

> You'll be lucky to get any (ix86) PCI graphics card working on Linux/PA-RISC.
> The best bet would be to get a Visualize-EG, or some graphics card that
> doesn't require initialization via (ix86-)BIOS (eg. Matrox Millenium).

Older S3, Matrox fit that, the XFree86 code has an x86 emulator which
will boot some more cards tho it does fail on some too where real vm86
works (eg C&T video BIOS)

Alan



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From: Elliott Potter <epotter@eep.burdell.org>
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On Sun, 15 Feb 2004, Alan Cox wrote:

> On Sul, 2004-02-15 at 03:36, M. Grabert wrote:
> > [...]
> > You'll be lucky to get any (ix86) PCI graphics card working on Linux/PA-RISC.
> > The best bet would be to get a Visualize-EG, or some graphics card that
> > doesn't require initialization via (ix86-)BIOS (eg. Matrox Millenium).
>
> Older S3, Matrox fit that, the XFree86 code has an x86 emulator which
> will boot some more cards tho it does fail on some too where real vm86
> works (eg C&T video BIOS)

I've got the matroxfb driver built as a module, but so far all I can get
it to do is hard lock the machine (yay, ext3!  Otherwise I'd be in real
trouble).  I'm fiddling with driver options, but it's slow going because
of all the rebooting.  Last one I tried was

modprobe matroxfb_base noaccel nopciretry nobios noinit nomtrr
Warning:
/lib/modules/2.4.24-pa0/kernel/drivers/video/matrox/matroxfb_base.o
symbol for parameter mtrr not found

...then the hard lock.  I'm going to try it with just "nomtrr" next
time; that mtrr warning error comes up every time.



Ideally, this card will work on the machine, because I've got one (and I
don't have a Voodoo* or S3*).  We'll see...
--
Elliott



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On Sunday 15 February 2004 17:06, Alan Cox wrote:
> On Sul, 2004-02-15 at 09:27, Helge Deller wrote:
> > I tested/fixed Vodoo2 and it should work with kernel 2.4 and 2.6 on HPPA.
> > Maximum resolution is 800x600 @16bpp though.
> 
> 1024x768@16bpp on Voodoo2, 800x600 on Voodoo1.

Maybe I'm wrong, but I thought it would go up to 1024x768@16bpp only
if you attached two Voodoo2 cards to each other with the optional
cable ?

Helge


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On Sun, Feb 15, 2004 at 04:10:00AM +0000, M. Grabert wrote:
> HP-UX/PA-RISC doesn't use Open Firmware.

V-class uses Openboot. SPP-UX used it directly and later when HP
bought Convex, a "PDC Compat" layer was added so HPUX would boot
with fewer modifications.

If someone with access to older V-class firmware source wanted
to port that to palo, I'd think that would be an interesting project.

grant


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On Sul, 2004-02-15 at 20:25, Helge Deller wrote:
> Maybe I'm wrong, but I thought it would go up to 1024x768@16bpp only
> if you attached two Voodoo2 cards to each other with the optional
> cable ?

The cards have 2 or 4Mb of memory for frame buffer (texture ram is
seperate). There is a hardware 1024 pixel width limit in the engine.

For 2D you need a front buffer (1024x768x16)
For 3D you need front back and depth (1024x768x16x3)

So 1024x768 2D is fine on a single card but 3D needs SLI



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> Ok, I will try to report as much detail as I can.

Hi all,

Just in case of some interest interest, here is the pr ref:
<http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14163>

hth,
    Joel


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] hw db pb?
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Hi all,

I try to have a look on D380 cpu's type into:
<http://hwdb.parisc-linux.org/>

but I only get severall:
"Warning: MySQL Connection Failed: Can't connect to local MySQL server through
socket '/var/run/mysqld/mysqld.sock' (111) in ../database.php3 on line 19

Warning: MySQL Connection Failed: Can't connect to local MySQL server through
socket '/var/run/mysqld/mysqld.sock' (111) in ../database.php3 on line 27

Warning: MySQL: A link to the server could not be established in ../database.php3
on line 27"

Thanks in advance for help,
    Joel


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On Mon, Feb 16, 2004 at 06:42:17PM +0100, Joel Soete wrote:
> Hi all,
> 
> I try to have a look on D380 cpu's type into:
> <http://hwdb.parisc-linux.org/>
> 
> but I only get severall:
> "Warning: MySQL Connection Failed: Can't connect to local MySQL server through
> socket '/var/run/mysqld/mysqld.sock' (111) in ../database.php3 on line 19

mysqld had died.  I just restarted it and it now works for me.  Thanks for
the report.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Mon, 16 Feb 2004, Joel Soete wrote:

> Hi all,
>
> I try to have a look on D380 cpu's type into:
> <http://hwdb.parisc-linux.org/>
>
> but I only get several:
> "Warning: MySQL Connection Failed: Can't connect to local MySQL server through
> socket '/var/run/mysqld/mysqld.sock' (111) in ../database.php3 on line 19
> [...]


That site works for me, but another option is the OpenPA site,
http://www.openpa.net/ which has excellent information on the PA-RISC
based workstations and servers.  Specifically:
http://www.openpa.net/systems/ultralight.html

HTH,
--
Elliott



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Subject: Re: [parisc-linux] HP1825 and PCI Vis-EG at 1600x1200
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> I just recently got an HP 1825 Flat panel display.
> The documentation says the panel supports 1600x1200 resolution
> via analog (not DVI) input at 75Khz Hsync, 60Hz refresh (Vsync).

I tried 1600x1200 @ 75Hz on a NEC LCD.  However, I found that the
redraw time with the VIS-EG was too long for my taste.  I settled
for 1280x1024 @ 75 Hz.

> Anyone already know if PCI Vis-EG card can output that?
> If so how? Maybe some sort of custom "mode line" in PDC?
> I'm looking for concrete steps, not speculation.

The C3k manual describes the commands needed to the Vis-EG 
to its predefined modes.

> I'll hunt a bit more on the internet since I'm pretty sure
> I've seen some of the HP parisc workstations allow for
> a "custom" video output but don't know if Vis-EG allows
> that or where the steps to do it are described.

If I recall, there is a line in the list of settings for the
Vis-EG for user defined settings.  However, I couldn'd figure
out how to set them.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Mon, Feb 16, 2004 at 05:47:53PM +0000, Matthew Wilcox wrote:
> mysqld had died.  I just restarted it and it now works for me.  Thanks for
> the report.

This had died last week too.
Maybe write a shell script to monitor it?

grant


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On Mon, Feb 16, 2004 at 09:30:31PM -0500, John David Anglin wrote:
> > I'll hunt a bit more on the internet since I'm pretty sure
> > I've seen some of the HP parisc workstations allow for
> > a "custom" video output but don't know if Vis-EG allows
> > that or where the steps to do it are described.
> 
> If I recall, there is a line in the list of settings for the
> Vis-EG for user defined settings.  However, I couldn'd figure
> out how to set them.

Yup, that's exactly what I was looking for.
I've seen that once upon a time but it might have been
on an HP internal website for a different card.
My fear is I have to run HPUX and "setmon" to get the custom settings.

Anyway, I gave up on this since it looks the manual for the
"HP 1825" really only supports 1280x1024 and the manual is
derived or shared with the "HP 2025" (20") flat panel display.
Thus the comment about 1600x1200 probably only applies to the 20" display.

thanks,
grant


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Matthew Wilcox wrote:

> On Mon, Feb 16, 2004 at 06:42:17PM +0100, Joel Soete wrote:
> 
>>Hi all,
>>
>>I try to have a look on D380 cpu's type into:
>><http://hwdb.parisc-linux.org/>
>>
>>but I only get severall:
>>"Warning: MySQL Connection Failed: Can't connect to local MySQL server through
>>socket '/var/run/mysqld/mysqld.sock' (111) in ../database.php3 on line 19
> 
> 
> mysqld had died.  I just restarted it and it now works for me.  Thanks for
> the report.
> 

While reading the hwdb some minutes ago, I saw the mysqld error messages. I 
think something more is wrong.


CBee




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I was contacted by one of the Debian XFree86 people yesterday asking if
someone would like to look at the XFree86 loader for parisc so they could
rearrange the packaging to ship the modules separately from the server.
I don't have any great desire to work on a dynamic linker, but I bet
somebody else does ... ;-)

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Tue, Feb 17, 2004 at 09:30:19AM +0100, Corn Beerse wrote:
> While reading the hwdb some minutes ago, I saw the mysqld error messages. I 
> think something more is wrong.

Yep.

Feb 16 19:20:14 dsl2 kernel: Out of Memory: Killed process 25587 (mysqld).
Feb 16 19:20:14 dsl2 kernel: Out of Memory: Killed process 25591 (mysqld).
Feb 16 19:20:19 dsl2 kernel: Out of Memory: Killed process 25592 (mysqld).
Feb 16 19:20:19 dsl2 kernel: Out of Memory: Killed process 25596 (mysqld).
Feb 16 19:20:29 dsl2 kernel: Out of Memory: Killed process 1217 (mysqld).
Feb 16 19:20:29 dsl2 kernel: Out of Memory: Killed process 1219 (mysqld).
Feb 16 19:20:29 dsl2 kernel: Out of Memory: Killed process 1220 (mysqld).
Feb 16 19:20:35 dsl2 kernel: Out of Memory: Killed process 1231 (mysqld).
Feb 16 19:20:35 dsl2 kernel: Out of Memory: Killed process 1233 (mysqld).
Feb 16 19:20:35 dsl2 kernel: Out of Memory: Killed process 1233 (mysqld).
Feb 16 19:21:00 dsl2 kernel: Out of Memory: Killed process 32694 (razor-report).
Feb 16 19:41:20 dsl2 kernel: Out of Memory: Killed process 886 (razor-report).
Feb 16 20:09:07 dsl2 kernel: Out of Memory: Killed process 32691 (razor-report).
Feb 16 21:14:35 dsl2 kernel: Out of Memory: Killed process 892 (razor-report).
Feb 16 22:08:34 dsl2 kernel: Out of Memory: Killed process 2958 (razor-report).
Feb 16 22:46:43 dsl2 kernel: Out of Memory: Killed process 2957 (razor-report).
Feb 17 00:13:43 dsl2 kernel: Out of Memory: Killed process 3217 (razor-report).
Feb 17 01:51:40 dsl2 kernel: Out of Memory: Killed process 5790 (razor-report).
Feb 17 02:51:00 dsl2 kernel: Out of Memory: Killed process 7007 (razor-report).
Feb 17 04:20:59 dsl2 kernel: Out of Memory: Killed process 7011 (razor-report).
Feb 17 07:28:46 dsl2 kernel: Out of Memory: Killed process 9957 (razor-report).

Hmm.  razor-report is either the bad guy or the innocent victim here.
I'll keep an eye on this ...

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Tue, Feb 17, 2004 at 02:42:06PM +0000, Matthew Wilcox wrote:
> I was contacted by one of the Debian XFree86 people yesterday asking if
> someone would like to look at the XFree86 loader for parisc so they could
> rearrange the packaging to ship the modules separately from the server.
> I don't have any great desire to work on a dynamic linker, but I bet
> somebody else does ... ;-)

Maybe that someone should fix the issue right and switch XFree to use
dlopen() for Linux.  If some other OSes want to keep the current junk
it'll be their problem to fix it..



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>CVSROOT:	/var/cvs
>Module name:	linux-2.6
>Changes by:	willy	04/02/17 05:52:36
>
[snip]
>Log message:
>merged to 2.6.3-rc4
Matthew,

Great job.

Boot fine on b2k 64bit kernel build with last gcc-3.0.4-ds3-8 ;)

hth,
    Joel



----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
http://reg.tiscali.be/default.asp?lg=fr





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On Mon, Feb 16, 2004 at 06:31:41PM +0100, Joel Soete wrote:
> > Ok, I will try to report as much detail as I can.
> 
> Hi all,
> 
> Just in case of some interest interest, here is the pr ref:
> <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14163>
> 
> hth,
>     Joel

Joel,

Excellent! Thanks for posting the PR, the person answering the PR is
correct, we should be indicating to gcc that set_dp is being used by
assembly.

I'm building with a fix right now "__attribute__((used))" to warn
gcc-3.5 that it should not remove the function. I hadn't even realized
that it was only being called by assembly, hence gcc-3.5 is doing a
*better* job of removing apparently dead code.

When the build finishes I'll update my glibc patches online.

c.



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Subject: Re: [parisc-linux] Job for someone
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On Tue, Feb 17, 2004 at 04:03:20PM +0100, Christoph Hellwig wrote:
> On Tue, Feb 17, 2004 at 02:42:06PM +0000, Matthew Wilcox wrote:
> > I was contacted by one of the Debian XFree86 people yesterday asking if
> > someone would like to look at the XFree86 loader for parisc so they could
> > rearrange the packaging to ship the modules separately from the server.
> > I don't have any great desire to work on a dynamic linker, but I bet
> > somebody else does ... ;-)
> 
> Maybe that someone should fix the issue right and switch XFree to use
> dlopen() for Linux.  If some other OSes want to keep the current junk
> it'll be their problem to fix it..

I spent time reviewing the loader code in XFree86 and the loader code in
glibc (when I fixed our relocation processing for COPY relocs).

So here are my two cents:

o As I understand it, the startup sequence of XFree86 is precarious, and
  loading the module via dlopen doesn't work because the symbol
  resolution order cannot follow the ELF standard 100%. It has to be done
  slightly out of order to bootstrap the server. This seems silly and
  should probably be fixed, but would require testing across all
  platforms. I figure it hasn't been done for that particular reason.

o It's not a horrible job to add our relocations to the XFree86 code,
  and I could probably do it given a couple of weeks. I almost started
  the job a year ago but lost steam when I blew the video out of my
  712/60.

So I'll set out the following challenge, if someone ships me a video
card for my c3k I'll fix the XFree86 loader. Short of that I imagine
that a 712/60 mobo with a working onboard video would be just as good :)

c.



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On Tue, Feb 17, 2004 at 04:27:40PM -0500, Carlos O'Donell wrote:
> So I'll set out the following challenge, if someone ships me a video
> card for my c3k I'll fix the XFree86 loader. Short of that I imagine
> that a 712/60 mobo with a working onboard video would be just as good :)

You are too easy. I can ship you a 712/100.
And I'll see if I can find you a PCI Vis-EG for the c3k.
I won't be able to ship anything until next week though.

cheers,
grant


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> 
> You are too easy. I can ship you a 712/100.
> And I'll see if I can find you a PCI Vis-EG for the c3k.
> I won't be able to ship anything until next week though.
> 

Deal, I'll remind you next week.

c.



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Subject: Re: [parisc-linux] glibc-2.3.3 & gcc-snapshot (3.5.0) pb
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Carlos,

>I'm building with a fix right now "__attribute__((used))" to war
> gcc-3.5 that it should not remove the function. I hadn't even realized
>that it was only being called by assembly, hence gcc-3.5 is doing a
>*better* job of removing apparently dead code.
>
>When the build finishes I'll update my glibc patches online

Ah :)
So you would certainly need some more hack because of lvalue casting.
Here are some one which could already help you:
--- glibc-2.3.3-20040212/iconv/gconv_simple.c	2004-02-07 17:27:50.000000000
+0100
+++ glibc-2.3.3-20040209/iconv/gconv_simple.c	2004-02-09 18:44:41.217390320
+0100
@@ -453,9 +453,11 @@
 #if __BYTE_ORDER == __BIG_ENDIAN
   /* Sigh, we have to do some real work.  */
   size_t cnt;
+  uint32_t *outptr32 = (uint32_t *) outptr;
 
   for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4)
-    *((uint32_t *) outptr)++ = bswap_32 (*(const uint32_t *) inptr);
+    *outptr32++ = bswap_32 (*(const uint32_t *) inptr);
+  outptr = (unsigned char *) outptr32;
 
   *inptrp = inptr;
   *outptrp = outptr;
=========><=========
I already submitted it and accepted by its maintainer (as it is just a complement
to his job) but not yet ci.

=========><=========
--- glibc-2.3.3-20040212/elf/dl-load.c	2004-02-09 08:03:48.000000000 +0100
+++ glibc-2.3.3-20040209/elf/dl-load.c	2004-02-10 16:32:53.250787488 +0100
@@ -1226,9 +1226,13 @@
 			    (header->e_phnum * sizeof (ElfW(Phdr))));
 	l->l_phdr_allocated = 1;
       }
-    else
+    else {
       /* Adjust the PT_PHDR value by the runtime load address.  */
-      (ElfW(Addr)) l->l_phdr += l->l_addr;
+      /*       (ElfW(Addr)) l->l_phdr += l->l_addr; */
+      ElfW(Addr) *tmpp = (ElfW(Addr) *) l->l_phdr;
+      tmpp += l->l_addr;
+      l->l_phdr = (ElfW(Phdr) *) tmpp;
+    }
   }
 
 #ifdef USE_TLS
@@ -1253,8 +1257,12 @@
 	  goto call_lose;
 	}
     }
-  else
-    (ElfW(Addr)) l->l_ld += l->l_addr;
+  else {
+    /* (ElfW(Addr)) l->l_ld += l->l_addr; */
+    ElfW(Addr) *tmpp = (ElfW(Addr) *) l->l_phdr;
+    tmpp += l->l_addr;
+    l->l_phdr = (ElfW(Phdr) *) tmpp;
+  }
 
   l->l_entry += l->l_addr;
 
=========><=========
--- glibc-2.3.3-20040212/sunrpc/rpc/xdr.h	2002-12-16 03:05:49.000000000 +0100
+++ glibc-2.3.3-20040209/sunrpc/rpc/xdr.h	2004-02-10 11:43:02.022656032 +0100
@@ -263,9 +263,19 @@
  * in the RPC code will not work on 64bit Solaris platforms !
  */
 #define IXDR_GET_LONG(buf) \
-	((long)ntohl((u_long)*__extension__((u_int32_t*)(buf))++))
+	({			\
+	long l;			\
+	u_int32_t *buf_u32 = (u_int32_t *) buf;			\
+	l = ((long)ntohl((u_long)*__extension__(buf_u32)++));	\
+	buf = (__typeof__(*buf) *) buf_u32;			\
+	l;							\
+	})
 #define IXDR_PUT_LONG(buf, v) \
-	(*__extension__((u_int32_t*)(buf))++ = (long)htonl((u_long)(v)))
+	do {			\
+	u_int32_t *buf_u32 = (u_int32_t *) buf;			\
+	(*__extension__(buf_u32)++ = (long)htonl((u_long)(v)));	\
+	buf = (__typeof__(*buf) *) buf_u32;			\
+	} while (0)
 #define IXDR_GET_U_LONG(buf)	      ((u_long)IXDR_GET_LONG(buf))
 #define IXDR_PUT_U_LONG(buf, v)	      IXDR_PUT_LONG(buf, (long)(v))
 
=========><=========
But this one is just a very ugly (just quick and dirty :( )

but also:
--- glibc/iconvdata/euc-jisx0213.c.orig	2004-02-18 12:07:32.723703576 +0100
+++ glibc/iconvdata/euc-jisx0213.c	2004-02-18 12:10:13.832211360 +0100
@@ -83,7 +83,9 @@
 	  if (__builtin_expect (outbuf + 4 <= outend, 1))		      \
 	    {								      \
 	      /* Write out the last character.  */			      \
-	      *((uint32_t *) outbuf)++ = data->__statep->__count >> 3;	      \
+	      uint32_t *outptr32 = (uint32_t *) outbuf;			      \
+	      *outptr32++ = data->__statep->__count >> 3;		      \
+	      outbuf = (unsigned char *) outptr32;			      \
 	      data->__statep->__count = 0;				      \
 	    }								      \
 	  else								      \
--- glibc/iconvdata/iso-2022-cn-ext.c.orig	2004-02-18 11:13:48.000000000
+0100
+++ glibc/iconvdata/iso-2022-cn-ext.c	2004-02-18 11:21:56.511671032 +0100
@@ -171,6 +171,7 @@
 #define BODY \
   {									      \
     uint32_t ch = *inptr;						      \
+    uint32_t *outptr32 = (uint32_t *) outptr;				      \
 									      \
     /* This is a 7bit character set, disallow all 8bit characters.  */	
     \
     if (ch > 0x7f)							      \
@@ -377,7 +378,8 @@
 	  }								      \
       }									      \
 									      \
-    *((uint32_t *) outptr)++ = ch;					      \
+    *outptr32++ = ch;							      \
+    outptr = (unsigned char *) outptr32;				      \
   }
 #define EXTRA_LOOP_DECLS	, int *setp
 #define INIT_PARAMS		int set = (*setp >> 3) & CURRENT_MASK; \
--- glibc/iconvdata/shift_jisx0213.c.orig	2004-02-18 12:15:21.953369824 +0100
+++ glibc/iconvdata/shift_jisx0213.c	2004-02-18 12:16:30.127005856 +0100
@@ -83,7 +83,9 @@
 	  if (__builtin_expect (outbuf + 4 <= outend, 1))		      \
 	    {								      \
 	      /* Write out the last character.  */			      \
-	      *((uint32_t *) outbuf)++ = data->__statep->__count >> 3;	      \
+	      uint32_t *outptr32 = (uint32_t *) outbuf;			      \
+	      *outptr32++ = data->__statep->__count >> 3;		      \
+	      outbuf = (unsigned char *) outptr32;			      \
 	      data->__statep->__count = 0;				      \
 	    }								      \
 	  else								      \
--- glibc/iconvdata/tcvn5712-1.c.orig	2004-02-18 11:18:22.027277616 +0100
+++ glibc/iconvdata/tcvn5712-1.c	2004-02-18 11:54:17.527591760 +0100
@@ -68,7 +68,9 @@
 	  if (__builtin_expect (outbuf + 4 <= outend, 1))		      \
 	    {								      \
 	      /* Write out the last character.  */			      \
-	      *((uint32_t *) outbuf)++ = data->__statep->__count >> 3;	      \
+	      uint32_t *outptr32 = (uint32_t *) outbuf;			      \
+	      *outptr32++ = data->__statep->__count >> 3;		      \
+	      outbuf = (unsigned char *) outptr32;			      \
 	      data->__statep->__count = 0;				      \
 	    }								      \
 	  else								      \
--- glibc/iconvdata/tscii.c.orig	2004-02-18 12:23:37.289067352 +0100
+++ glibc/iconvdata/tscii.c	2004-02-18 12:24:25.417750680 +0100
@@ -98,7 +98,9 @@
 		  break;						      \
 		}							      \
 	      /* Write out the pending character.  */			      \
-	      *((uint32_t *) outbuf)++ = data->__statep->__count >> 8;	      \
+	      uint32_t *outptr32 = (uint32_t *) outbuf;			      \
+	      *outptr32++ = data->__statep->__count >> 8;		      \
+	      outbuf = (unsigned char *) outptr32;			      \
 	      /* Retrieve the successor state.  */			      \
 	      data->__statep->__count =					      \
 		tscii_next_state[(data->__statep->__count >> 4) & 0x0f];      \
=========><=========

But now I need more to try to complete job because:
make[2]: *** [/Develop/parisc-linux/build/glibc/sunrpc/xbootparam_prot.stmp]

Segmentation fault

And dmesg saying:

do_page_fault() pid=6547 command='ld.so.1' type=15 address=0x0016b690
vm_start = 0x00033000, vm_end = 0x00034000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000111100001111 Not tainted
r00-03  0000000000000000 000000004102b6fc 000000004100721f 00000000faf02040
r04-07  000000004102b6fc 00000000400002b8 00000000faf02158 00000000faf01d8c
r08-11  0000000040170000 0000000000170e60 000000004016fd98 00000000faf01dc0
r12-15  0000000040171e60 0000000000000002 00000000faf02128 ffffffffffffffff
r16-19  00000000faf02180 0000000000000003 0000000000000004 000000004102b6fc
r20-23  000000004102bd80 0000000000000008 000000000016b690 0000000040000000
r24-27  000000000016b690 0000000000001e60 0000000000000003 00000000000c97f0
r28-31  0000000040001000 0000000000000000 00000000faf02180 0000000041013fc7
sr0-3   0000000000003580 0000000000003580 0000000000000000 0000000000003580
sr4-7   0000000000003580 0000000000003580 0000000000003580 0000000000003580

IASQ: 0000000000003580 0000000000003580 IAOQ: 0000000041007293 0000000041007297
 IIR: 0ec01095    ISR: 0000000000003580  IOR: 000000000016b690
 CPU:        8   CR30: 000000003a038000 CR31: 00000000104a4000
 ORIG_R28: 0000000040170000
 IAOQ[0]: 0x41007293
 IAOQ[1]: 0x41007297
 RP(r2): 0x4100721f

But I need first to reboot with a new kernel (the present one was build with
gcc-hppa64-3.3 :( ).
Then get the very last gcc and glibc cvs and restart the scipt :)

hth,
    Joel

PS: I also join diff as files because of bad wraping of my webmail interface.


----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
http://reg.tiscali.be/default.asp?lg=fr




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From: Elliott Potter <epotter@eep.burdell.org>
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Subject: Re: [parisc-linux] glibc-2.3.3 & gcc-snapshot (3.5.0) pb
Date: Wed, 18 Feb 2004 08:36:57 -0500 (EST)
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On Wed, 18 Feb 2004, Joel Soete wrote:

> Carlos,
> [...]
> But now I need more to try to complete job because:
> make[2]: *** [/Develop/parisc-linux/build/glibc/sunrpc/xbootparam_prot.stmp]
>
> Segmentation fault
>
> And dmesg saying:
>
> do_page_fault() pid=6547 command='ld.so.1' type=15 address=0x0016b690
> vm_start = 0x00033000, vm_end = 0x00034000
>
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000111100001111 Not tainted
> r00-03  0000000000000000 000000004102b6fc 000000004100721f 00000000faf02040
> r04-07  000000004102b6fc 00000000400002b8 00000000faf02158 00000000faf01d8c
> r08-11  0000000040170000 0000000000170e60 000000004016fd98 00000000faf01dc0
> r12-15  0000000040171e60 0000000000000002 00000000faf02128 ffffffffffffffff
> r16-19  00000000faf02180 0000000000000003 0000000000000004 000000004102b6fc
> r20-23  000000004102bd80 0000000000000008 000000000016b690 0000000040000000
> r24-27  000000000016b690 0000000000001e60 0000000000000003 00000000000c97f0
> r28-31  0000000040001000 0000000000000000 00000000faf02180 0000000041013fc7
> sr0-3   0000000000003580 0000000000003580 0000000000000000 0000000000003580
> sr4-7   0000000000003580 0000000000003580 0000000000003580 0000000000003580
>
> IASQ: 0000000000003580 0000000000003580 IAOQ: 0000000041007293 0000000041007297
>  IIR: 0ec01095    ISR: 0000000000003580  IOR: 000000000016b690
>  CPU:        8   CR30: 000000003a038000 CR31: 00000000104a4000
>  ORIG_R28: 0000000040170000
>  IAOQ[0]: 0x41007293
>  IAOQ[1]: 0x41007297
>  RP(r2): 0x4100721f

Interesting -- I'm getting a similar crash in a program when it calls
getopt_long() -- this do_page_fault thing.  I'm wondering if the two are
somehow related because it's only this one program that crashes, and
only on the line where getopt_long() is called.  The output in dmesg:

do_page_fault() pid=30051 command='distmk' type=6 address=0x6bc23fdb
vm_start = 0x401ca000, vm_end = 0x401cb000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 4004ca40 4002c09f bff04040
r04-07  4004d240 000d6f60 bff001b0 bff0018c
r08-11  00000008 00000008 00000001 bff03748
r12-15  000d8470 000ce5c0 00000000 00000000
r16-19  00000000 000b2248 00000004 000007ec
r20-23  4004d238 80000000 6bc23fd9 00000000
r24-27  bff001b0 4004d714 4004cb40 000cfd40
r28-31  000d6762 7efefeff bff040c0 0009cc8b
sr0-3   00001491 00001491 00000000 00001491
sr4-7   00001491 00001491 00001491 00001491

IASQ: 00001491 00001491 IAOQ: 6bc23fdb 6bc23fdf
IIR: 43ffff80    ISR: 00001491  IOR: 401a1a38
CPU:        0   CR30: 4a360000 CR31: 103f0000
 ORIG_R28: 401ca000
 IAOQ[0]: 0x6bc23fdb
 IAOQ[1]: 0x6bc23fdf
 RP(r2): 0x4002c09f


Anyway just a data point.

This is with gcc-3.0.4 and gcc-3.2.3, with kernel 2.4.* and 2.6.2-pa3,
and glibc-2.2.5 (so ... old ...)
--
Elliott




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Hi Elliot,

>Interesting -- I'm getting a similar crash in a program when it calls
>getopt_long() -- this do_page_fault thing.  I'm wondering if the two are
>somehow related because it's only this one program that crashes, and
>only on the line where getopt_long() is called.  The output in dmesg:

For the moment I can just confirm that it's not a kernel pb: I just reboot
a 2.6.3-rc4-pa0 built with gcc-hppa64-3.0.4ds3-8 (a N required a 64bits kernel)
and the same Seg fault occurs.

But in my case, as mentioned sw are still in developement, i suspect more
a mistack in my hack ?)

Cheers,
    Joel

----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
http://reg.tiscali.be/default.asp?lg=fr





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Do not mail me personnaly please.

CCing the list for archive.

Le mercredi, 18 f=E9v 2004, =E0 10:45 Europe/Paris, Cenk KARAG=D6Z a =
=E9crit :

> I=92m so sory for take your time..
>
> But I have a little bit problem about debian_hppa 30r2=A0
>
> I have a180/c- (A 9000 class) machine..
>
> Everything seems to beok=A0 duringdebian installation and=20
> PALOinstallationseems to be ok..
>
> But.. In the boot time,ISL (by the way ISL vers=E0ISL revision A.00.38=20=

> OCT, 1994) say:
>
> ISL booting hpux

well this is pretty self explanatory... you' re booting HPUX here.
>
> Boot: disk:(8/16/5.6.0.0.0.0.0.0:0)/stand/vmunix
>
> and machine cant boot..
>
> I cant understand,=A0 our disk partitions, and instllation processand=20=

> PALOworkedfine...=A0But I still get hpux and /stand/vmunix messages...
>
> However,=A0 Ihaveboot the system with debian cd=A0 and=A0mount the =
patitions=20
> and work palo in shell.. PALO didnt send any kind error messages..
>
> Should I upgrade ISL version ?Have yougotany idea ?

follow the instructions here to install your box:
http://www.pateam.org/doc.html

and don't forget to format your HD.

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/=



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> > But now I need more to try to complete job because:
> > make[2]: *** [/Develop/parisc-linux/build/glibc/sunrpc/xbootparam_prot.stmp]

This is the first time that the loader you built is used. If the loader
is in anyway broke, it will *always* die here first. Just remember this
glibc haiku when you are coding:

	Loader code is bad.
	Dying in sunrpc.
	Blame relocations.

:)

> > do_page_fault() pid=6547 command='ld.so.1' type=15 address=0x0016b690
> > vm_start = 0x00033000, vm_end = 0x00034000
> >
> >      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > PSW: 00000000000001000000111100001111 Not tainted
> > r00-03  0000000000000000 000000004102b6fc 000000004100721f 00000000faf02040
> > r04-07  000000004102b6fc 00000000400002b8 00000000faf02158 00000000faf01d8c
> > r08-11  0000000040170000 0000000000170e60 000000004016fd98 00000000faf01dc0
> > r12-15  0000000040171e60 0000000000000002 00000000faf02128 ffffffffffffffff
> > r16-19  00000000faf02180 0000000000000003 0000000000000004 000000004102b6fc
> > r20-23  000000004102bd80 0000000000000008 000000000016b690 0000000040000000
> > r24-27  000000000016b690 0000000000001e60 0000000000000003 00000000000c97f0
> > r28-31  0000000040001000 0000000000000000 00000000faf02180 0000000041013fc7
> > sr0-3   0000000000003580 0000000000003580 0000000000000000 0000000000003580
> > sr4-7   0000000000003580 0000000000003580 0000000000003580 0000000000003580

Loader died, return address is in the loader or libc. Stack pointer
looks right. PIC register looks correct. If you had a copy of your
/proc/<pid>/maps then you could decipher where 0x4102b6fc pointed.

> > IASQ: 0000000000003580 0000000000003580 IAOQ: 0000000041007293 0000000041007297
> >  IIR: 0ec01095    ISR: 0000000000003580  IOR: 000000000016b690
> >  CPU:        8   CR30: 000000003a038000 CR31: 00000000104a4000
> >  ORIG_R28: 0000000040170000
> >  IAOQ[0]: 0x41007293
> >  IAOQ[1]: 0x41007297
> >  RP(r2): 0x4100721f

Odd, the insns you are executing are really close to your IAOQ
addresses, so the functions are close together.

> Interesting -- I'm getting a similar crash in a program when it calls
> getopt_long() -- this do_page_fault thing.  I'm wondering if the two are
> somehow related because it's only this one program that crashes, and
> only on the line where getopt_long() is called.  The output in dmesg:

No relation. The do_page_fault is an attempt to execute code at an
invalid page. In Joel's case the address is garbage, in your case it's
very very very different.

> do_page_fault() pid=30051 command='distmk' type=6 address=0x6bc23fdb
> vm_start = 0x401ca000, vm_end = 0x401cb000

Your's is a very special failure. The faulting address is actually
an instruction sequence "6bc23fd9 == stw rp,-14(,sp)" Which means that
at some point a *real* address was substituted for a function
descriptor, then dereferenced and jumped into. This *only* used to
happen when running static programs that had static lookup functions. I
can't be certain though without knowing more about your program "distmk."
My guess is that it's a statically compiled binary calling dlopen?

>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111 Not tainted
> r00-03  00000000 4004ca40 4002c09f bff04040
> r04-07  4004d240 000d6f60 bff001b0 bff0018c
> r08-11  00000008 00000008 00000001 bff03748
> r12-15  000d8470 000ce5c0 00000000 00000000
> r16-19  00000000 000b2248 00000004 000007ec
> r20-23  4004d238 80000000 6bc23fd9 00000000
> r24-27  bff001b0 4004d714 4004cb40 000cfd40
> r28-31  000d6762 7efefeff bff040c0 0009cc8b
> sr0-3   00001491 00001491 00000000 00001491
> sr4-7   00001491 00001491 00001491 00001491
> 
> IASQ: 00001491 00001491 IAOQ: 6bc23fdb 6bc23fdf
> IIR: 43ffff80    ISR: 00001491  IOR: 401a1a38
> CPU:        0   CR30: 4a360000 CR31: 103f0000
>  ORIG_R28: 401ca000
>  IAOQ[0]: 0x6bc23fdb
>  IAOQ[1]: 0x6bc23fdf
>  RP(r2): 0x4002c09f
> 
> This is with gcc-3.0.4 and gcc-3.2.3, with kernel 2.4.* and 2.6.2-pa3,
> and glibc-2.2.5 (so ... old ...)

Eeek! Upgrade? I've made so many fixes since then... it's not a very
functioning libc.

c.



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Carlos,

>>> > But now I need more to try to complete job because:
>> > make[2]: *** [/Develop/parisc-linux/build/glibc/sunrpc/xbootparam_prot.stmp]
>
>This is the first time that the loader you built is used. If the loader
>is in anyway broke, it will *always* die here first. Just remember this
>glibc haiku when you are coding:
>
>	Loader code is bad.
>	Dying in sunrpc.
>	Blame relocations.
>
>:)

:)) (I was ignoring what an haiku is but now find it as a very good example)


r00-03  0000000000000000 000000004102b6fc 000000004100721f 00000000faf02040

>[snip] If you had a copy of your
/proc/<pid>/maps then you could decipher where 0x4102b6fc pointed.

First just to be sure: don't you speak better of r02=0x4100721f?

unfortunately when I discover dmesg, the process was already died :(
(I will see howto ?)

> > IASQ: 0000000000003580 0000000000003580 IAOQ: 0000000041007293 0000000041007297
> >  IIR: 0ec01095    ISR: 0000000000003580  IO
>: 000000000016b690
> >  CPU:        8   CR30: 000000003a038000 CR31: 00000000104a4000
> >  ORIG_R28: 0000000040170000
> >  IAOQ[0]: 0x41007293
> >  IAOQ[1]: 0x41007297
> >  RP(r2): 0x4100721f

>Odd, the insns you are executing are really close to
>your IAOQ addresses, so the functions are close together.

Thanks for advise, help and attention,
    Joel


----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] glibc-2.3.3 & gcc-snapshot (3.5.0) pb
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To: "Carlos O'Donell" <carlos@baldric.uwo.ca>
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Carlos,

>>> > But now I need more to try to complete job because:
>> > make[2]: *** [/Develop/parisc-linux/build/glibc/sunrpc/xbootparam_prot.stmp]
>
Just to be more complet here is the full cmd:
CPP='/Develop/parisc-linux/xc/bin/hppa-linux-gcc -E -x c-header'  /Develop/parisc-linux/build/glibc/elf/ld.so.1
--library-path /Develop/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Develop/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/Develop/parisc-linux/build/glibc/nss:/Develop/parisc-linux/build/glibc/nis:/Develop/p
arisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/build/glibc/linuxthreads
/Develop/parisc-linux/build/glibc/sunrpc/rpcgen -Y ../scripts -c rpcsvc/bootparam_prot.x
-o /Develop/parisc-linux/build/glibc/sunrpc/xbootparam_prot.T

which fault immediately as strace confirm:
execve("/Develop/parisc-linux/build/glibc/elf/ld.so.1", ["/Develop/parisc-linux/build/glibc/elf/ld.so.1",
"--library-path", "/Develop/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Develop/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/Develop/parisc-linux/build/glibc/nss:/Develop/parisc-linux/build/glibc/nis:/Devel
op/parisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/build/glibc/linuxthreads",
"/Develop/parisc-linux/build/glibc/sunrpc/rpcgen", "-Y", "../scripts", "-c",
"rpcsvc/bootparam_prot.x", "-o", "/Develop/parisc-linux/build/glibc/sunrpc/xbootparam_prot.T"],
[/* 15 vars */]) = 0
newuname({sys="Linux", node="palx4000", ...}) = 0
brk(0)                                  = 0x4102d000
open("/Develop/parisc-linux/build/glibc/sunrpc/rpcgen", O_RDONLY) = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\2\0\17\0\0\0\1\0\1\16"..., 512)
= 512
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x40000000
mmap(0x10000, 77824, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) =
0x10000
mmap(0x32000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
3, 0x12000) = 0x32000
mmap(0x33000, 572, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS,
-1, 0) = 0x33000
close(3)                                = 0
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/Develop/parisc-linux/build/glibc/PARISC32/libc.so.6", O_RDONLY) =
-1 ENOENT (No such file or directory)
stat64("/Develop/parisc-linux/build/glibc/PARISC32", 0xfaf01548) = -1 ENOENT
(No such file or directory)
open("/Develop/parisc-linux/build/glibc/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\2\16"..., 512)
= 512
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 1511008, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40001000
mprotect(0x40154000, 122464, PROT_NONE) = 0
mmap(0x40163000, 53248, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
3, 0x152000) = 0x40163000
mmap(0x40170000, 7776, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS,
-1, 0) = 0x40170000
close(3)                                = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++

I am very fluent in strace langage ( :) ) but I have the filling that libc.so.6
is wrong? What do you think?

Thanks again,
    Joel.

PS: I will stopped here and tommorrow will try update all stuff and see ;)

----------------------------------------------------------------------------------------
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pa,

So I want to buy an hppa laptop... is anyone selling?

c.



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Hi,

Firstly, thanks for the great work on parisc-linux. I'm amazed at how
well it's working. I hope I'll be able to give something back, soon.

I'm having problems with kernels >= 2.4.22 on a 715/100.

I'm looking at http://parisc-linux.org/faq/kernelbug-howto.html.
The guidelines at http://bugs.parisc-linux.org/Reporting.html (linked to
from http://parisc-linux.org/) appear to be out of date, so I'm not sure
if I'm doing the right thing. Console output is a little difficult for
me to provide at the moment.

While booting (i.e. while init is bringing up services, not during
kernel startup), or after booting, something appears to be hanging.
There doesn't seem to be much of a pattern regarding when the hangs
occur, although I've noticed them happening at the same time between
subsequent reboots, e.g. after starting statd, or trying to load the
mixer settings.

If I set the default runlevel to 1, I can log in using single user
mode. Before starting inetd, telnet to port 37 (time) fails. After
running /etc/init.d/inetd start, telnet to port 37 appears to work.
(I get a valid response, e.g. 0xc3de42ac), telnetting to port 13 seems
correct: "Wed Feb 18 20:04:23 2004." If I start sshd and remove
/etc/nologin, I can connect with ssh.

After the hang has taken place, I can still ping the machine.
Anything I type at the console is echoed correctly. The heartbeat's
working. Magic sysrq works. I can make connections to port 22, but
after the connection is made, nothing happens (I.e. I don't get the
SSH greeting.) If I telnet to port 37 or port 13, I get a valid
response - this indicates that inetd is running and still working.
If I have bash running I can use tab completion to list directory
contents.

But after a while, bash freezes during tab completion. Sometimes,
telnetting to port 13 ceases to work. Still, I can ping the machine,
text is echoed, I even get a response from telnetting to port 37,
the heartbeat works, and so does magic sysrq.

uname -a reports:

Linux 1986u10 2.4.24-pa0 #6 Wed Feb 18 16:58:09 GMT 2004 parisc GNU/Linux

I'm using gcc 3.3.3 (-0pre3) package to build the kernel, with
the binutils 2.14.90.0.7-5 package, and 2.4.24 from CVS. The same
thing happens with all of the pre-compiled packages from
http://cvs.parisc-linux.org/download/autobuild-kernels/32/
that I've tried newer than palinux-32-2.4.21-pa7.

Debian's kernel-image-2.4.17-32 and kernel-image-2.4.21-32 seem to work.
palinux-32-2.4.20-pa35, palinux-32-2.4.21-pa2 and palinux-32-2.4.21-pa7
work correctly. palinux-32-2.4.22-pa7, palinux-32-2.4.22-pa10 and
palinux-32-2.4.24-pa0 don't, though, nor do any of the 2.4.24 images
that I've built from CVS.

The BootRom version is 1.5. The memory in this machine was upgraded to
160MB. There's also an extra graphics card, which I'm not using at the
moment. The problem occurs regardless of whether I'm using stifb or
sticon.

Palo's command line is: 2/vmlinux root=/dev/sda6 HOME=/ console=tty0
sti=1 sti_font=VGA8x16 TERM=linux 

I've uploaded the System.map and config files:
   http://homepage.ntlworld.com/wholehog/System.map-32-2.4.24-pa0.gz
   http://homepage.ntlworld.com/wholehog/config-32-2.4.24-pa0

Also, when doing a fsck (ext3) with the new kernel, it got to the 70.1%
mark, and froze. 70% seems to be the beginning of a particular stage in
fsck's checking.

Typical /var/log/messages output is at:
   http://homepage.ntlworld.com/wholehog/messages-2.4.21-pa7
   http://homepage.ntlworld.com/wholehog/messages-2.4.24-pa0

This may be unrelated, but sometimes the keyboard isn't detected. This
seems to affect only the newer kernels, but I may be mistaken.

I can't seem to clear the PIM TOC info, and pressing the TOC button
doesn't seem be setting it. I think the TOC button works, because
pressing it up just after powering up results in the serial port being
used for the console - at least I assume it does, because it doesn't
use the graphics device.

I'd be very grateful for any help finding the cause of this. I'll be
happy to test anyone's patches in order to find out what's causing
things to break, or to test any fixes. Please let me know if there's
any more information or log output that would be of use.
-- 
Stuart Brady


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Wish you could do something with your old Voodoo or Voodoo2 graphics
cards ?
Unable to find tools old enough to build Glide2 ?
Unable to port Glide2 to your new system ?
Want to use the 2D accelerator on the Voodoo2 ?
Want render acceleration ?

The department of retro-optimisation(*) proudly presents the 1.0 Beta
release of a Voodoo and Voodoo2 driver for XFree86 4.3.

-	640x480, 800x600, 1024x768 - and custom non glide modes
-	1024x768 on non-SLI Voodoo2
-	DGA
-	2D acceleration of most operations on Voodoo2
-	Render acceleration (Voodoo2)
-	No glide library needed
-	Supports SLI configurations although it doesnt use SLI

No DRI (yet), although if the folks hacking Glide3 can get Voodoo1/2
working again that should be possible to do. No Xv (anyone know about
YAB texture formats so I can use them for YUV422/YCbCr ?) and no
pixcache at the moment.

It may also have endian issues so I'd love to hear from parisc hackers
how well it works.

And you thought it was just another old dead video card...

	ftp://people.redhat.com/alan/XFree86/Voodoo

including a compiled driver mode for Fedora Core 1 and 2T1.


Alan

(*) With more than a little help from Ghozlane Toumi's sstfb work



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As I only have a slow modem, has anyone got a B2000 with a working X config for an FXE gfx card ???
if so, what version of X please.

Cheers,
  John



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On Wed, Feb 18, 2004 at 04:55:06PM +0100, Thibaut VAR?NE wrote:
> >But.. In the boot time,ISL (by the way ISL vers?ISL revision A.00.38 
> >OCT, 1994) say:
> >
> >ISL booting hpux
> 
> well this is pretty self explanatory... you' re booting HPUX here.

exactly. there's a good chance the auto boot primary is still pointing
at the scsi.6 disk. If he has two disks installed then debian will
get installed on scsi.5 (sda).

grant


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On Thu, Feb 19, 2004 at 03:41:02PM +1100, John Telek wrote:
> As I only have a slow modem, has anyone got a B2000 with a working
> X config for an FXE gfx card ???
> if so, what version of X please.

Sorry - FX-E/2/4/6 are not supported.
We need documentation published or some clever hacking
based on existing published code.

grant


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On Wed, Feb 18, 2004 at 11:52:25PM +0000, Stuart Brady wrote:
> I'm having problems with kernels >= 2.4.22 on a 715/100.

[ delete descriptions of hang symptoms ]

Stuart,
All your symptoms point at disk IO hanging.
Setting the default queue depth to 1 would be worth trying.
I've forgotten the details for setting queue depth.
 
search parisc-linux mailing list archives "scsi queue tags".
http://lists.parisc-linux.org/pipermail/parisc-linux/2004-January/022087.html

btw, 715/50 is NOT the same as 715/100.
715/100 should have "coherent" DMA and 715/50 does not.

Maybe a FAQ entry for "715/xxx hangs" could be your first contribution?

hth,
grant


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Attention: parisc-linux@parisc-linux.org


A virus was found in an Email message you sent. 
This Email scanner intercepted it and stopped the entire message
reaching its destination. 

The virus was reported to be: 

Worm.SomeFool


Please update your virus scanner or contact your IT support 
personnel as soon as possible as you have a virus on your system.


Your message was sent with the following envelope:

MAIL FROM: parisc-linux@parisc-linux.org
RCPT TO:   8.2040103@ab-innovation.dk 

... and with the following headers:

---
MAILFROM: parisc-linux@parisc-linux.org
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From: parisc-linux@parisc-linux.org
To: 8.2040103@ab-innovation.dk
Subject: hello
Date: Thu, 19 Feb 2004 08:27:59 +0100
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="20122441"


---


From - Thu Nov 08 21:30:59 2018
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From: dub@latnet.lv
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Subject: [parisc-linux] Re: can't compile 2.4.24: pdc_cons.o problem!
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Matthew Wilcox willy at debian.org  wrote:

>> I'm trying to compile a new kernel for K210. I tried both stable 2.4.24 and
>>2.4.23
>> (got them by "apt-get -t stable kernel-source-2.4.2x")

> the problem you're having is that you're trying to compile a kernel
> that really doesn't support parisc.  i suggest either getting the
> latest CVS kernel (see http://www.parisc-linux.org/faq/cvs.html) or
> kernel-patch-2.4.21-hppa from the debian archive.

Thanks a lot, it works. :-) BTW, it's not possible to navigate to
http://cvs.parisc-linux.org/download/ from  http://cvs.parisc-linux.org/

One more question. How to find out status of pasisc-linux.org kernels? (stable
vs testing)

BR,
Dub



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Hi all, we are moving locations and need to clean out some hardware in
our warehouse. We have about 40 of these A3312A rack-mount High
Availability Jamaica arrays taking up space and we really don't want to
trash them. If anyone wants any, we are giving them away, I only ask
that you pay for shipping out of Tampa (33762). They are good storage
arrays that work in MPE/iX, HP-UX, Linux, & Windows/NT environment, we
have the racking hardware and both fans and power supplies are included.
They take either FWD or SE drives and the capacity is 8 low profile
drives. If your interested in getting one of these arrays or if you want
some additional specifications of the A3312A sent to you, feel free to
contact me.

Thanks
Jesse
Cypress Technology Inc
Jesse@cypress-tech.com




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Subject: [parisc-linux] b2k scsi disk pb
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Hi Matthew,

I trust that you could advise me about this pb:

on my b2k since I can run 2.6 (32bit with gcc-3.3 or 64bit with gcc-3.0)
i noticed from time to time such dmesg:
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.

sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: ABORT operation started.
sym0:5:0: ABORT operation timed-out.
sym0:5:0: DEVICE RESET operation started.
sym0:5:0: DEVICE RESET operation timed-out.
sym0:5:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sym0:5:0: BUS RESET operation complete.

and during this time the system naturaly hang.

scsi id 5 is the one of the working boot disk (a quantum model atlas5-9lvd)
and if there is well a second disk (a seagate model ST336704LC) it is not
used.

OTC with 2.4 and sym2 driver, I never noticed this behavior (even with recent
2.4.25-rc?-pa0 :) ), so I presume that there is no disk failure (and a dd
if=/dev/sda of=/dev/null bs=1024k reach to read fully the disk without any
error).

Any idea?

Thanks in advance,
    Joel



----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
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Subject: [parisc-linux] Linux only see 2Gb of ram of N4k
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Hi all,

My collegue make me notice that the N4k on which I can test Linux was supplied
with 4Gb of ram (which if confirm at boot prompt) but Linux only see 2Gb.

It is a dual cpu machine, is that 1/2 ram dedicated to 1 cpu and the other
1/2 to the 2d cpu?

Thanks for advise,
    Joel

----------------------------------------------------------------------------------------
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Subject: Re: [parisc-linux] Linux only see 2Gb of ram of N4k
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On Fri, Feb 20, 2004 at 07:04:26PM +0100, Joel Soete wrote:
> Hi all,
> 
> My collegue make me notice that the N4k on which I can test Linux was supplied
> with 4Gb of ram (which if confirm at boot prompt) but Linux only see 2Gb.
> 
> It is a dual cpu machine, is that 1/2 ram dedicated to 1 cpu and the other
> 1/2 to the 2d cpu?

Unlikely.  As I recall, the N4k diagram looks like this:

<-PCI-> Elroy <-Ropes\      PA <-+-> PA        PA <-+-> PA       /Ropes-> Elroy
<-PCI-> Elroy <-Ropes-\         DEW       RAM      DEW          /-Ropes-> Elroy
<-PCI-> Elroy <-Ropes--> IKE <-Merced-> Stretch <-Merced-> IKE <--Ropes-> Elroy
<-PCI-> Elroy <-Ropes-/         DEW       RAM      DEW          \-Ropes-> Elroy
<-PCI-> Elroy <-Ropes/      PA <-+-> PA        PA <-+-> PA       \Ropes-> Elroy

So the RAM is uniformly-accessible from all CPUs, but the IO is not.

If you look at pat_memconfig() in arch/parisc/kernel/inventory.c, you'll
see how we try to figure out what memory ranges are in the machine.
Want to try debugging that, see what's being reported by firmware?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Subject: Re: [parisc-linux] b2k scsi disk pb
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On Fri, 20 Feb 2004, Joel Soete wrote:

> on my b2k since I can run 2.6 (32bit with gcc-3.3 or 64bit with gcc-3.0)
> i noticed from time to time such dmesg:
> sym0:5:0: ABORT operation timed-out.
> sym0:5:0: ABORT operation started.

[...]

> sym0:5:0: ABORT operation timed-out.
> sym0:5:0: DEVICE RESET operation started.
> sym0:5:0: DEVICE RESET operation timed-out.
> sym0:5:0: BUS RESET operation started.
> sym0: SCSI BUS reset detected.
> sym0: SCSI BUS has been reset.
> sym0:5:0: BUS RESET operation complete.
>
> and during this time the system naturaly hang.

(or is at least *very* slow)

> scsi id 5 is the one of the working boot disk (a quantum model atlas5-9lvd)
> and if there is well a second disk (a seagate model ST336704LC) it is not
> used.

Had the same problem when attaching a SE-SCSI device (also a Seagate, 20GB)
on my C3k (which has 2 internal LVD SCSI-drives).

Got rid of it by not using the SE-SCSI driver ;)
Try to physically detach the (not-used) ST336704LC.

> OTC with 2.4 and sym2 driver, I never noticed this behavior (even with recent
> 2.4.25-rc?-pa0 :) ), so I presume that there is no disk failure (and a dd
> if=/dev/sda of=/dev/null bs=1024k reach to read fully the disk without any
> error).

Yes, I think reading is fine, just (lots of) writing is triggering it.
    Max


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From: Razvan Popescu <tomcatsniper@go.ro>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Install from DDS Tape
Date: Sat, 21 Feb 2004 03:19:17 +0200
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Hi,
  I have an old HP 9000 model 715 at my work with HP-UX 10.2 and
  I want to install Debian 3.0 for PA-RISC on it but it has ONLY
  a dds tape drive (no cdrom, no floppy). My question is: Can I
  install from tape? How can I put the Debian ISO file on a dds
  and boot/install from that?
-----------------------------------------------------------------
Thanks,
        Razvan Popescu                 mailto:tomcatsniper@go.ro
Linux registered as user #305236
-----------------------------------------------------------------



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From: Matt Taggart <taggart@carmen.fc.hp.com>
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Razvan Popescu writes...

> Hi,
>   I have an old HP 9000 model 715 at my work with HP-UX 10.2 and
>   I want to install Debian 3.0 for PA-RISC on it but it has ONLY
>   a dds tape drive (no cdrom, no floppy). My question is: Can I
>   install from tape?

Yes.

> How can I put the Debian ISO file on a dds and boot/install from that?

I'm not sure if dd'ing the ISO image will work. Just dd one of the 
installer lif images onto the tape.

-- 
Matt Taggart        Linux and Open Source Lab
taggart@fc.hp.com   Hewlett-Packard




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On Wed, Feb 18, 2004 at 11:29:07PM -0700, Grant Grundler wrote:
> On Wed, Feb 18, 2004 at 11:52:25PM +0000, Stuart Brady wrote:
> > I'm having problems with kernels >= 2.4.22 on a 715/100.
> 
> Stuart,
> All your symptoms point at disk IO hanging.
> Setting the default queue depth to 1 would be worth trying.
> I've forgotten the details for setting queue depth.
>  
> search parisc-linux mailing list archives "scsi queue tags".
> http://lists.parisc-linux.org/pipermail/parisc-linux/2004-January/022087.html

Thanks! Changing NCR_700_MAX_TAGS to 1 in drivers/scsi/53c700.h did the
trick. Will I now have poor disk performance? If so, might I get away
with setting it to something higher, like 2 or 4, maybe?

I've not heard of tagged command queues before - the idea seems to be to
transfer data to the drive as early as possible, but make decisions as
to what should be written first at a later stage. Is that correct?

http://lists.parisc-linux.org/pipermail/parisc-linux/2002-February/015465.html
says that no tagged queue is a bad thing. Why is that?

> btw, 715/50 is NOT the same as 715/100.
> 715/100 should have "coherent" DMA and 715/50 does not.
> 
> Maybe a FAQ entry for "715/xxx hangs" could be your first contribution?

That's a good idea. Where should I send the entry? Here?
-- 
Stuart Brady


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On Sat, 2004-02-21 03:19:17 +0200, Razvan Popescu <tomcatsniper@go.ro>
wrote in message <5818350927.20040221031917@go.ro>:
> Hi,
>   I have an old HP 9000 model 715 at my work with HP-UX 10.2 and
>   I want to install Debian 3.0 for PA-RISC on it but it has ONLY
>   a dds tape drive (no cdrom, no floppy). My question is: Can I
>   install from tape? How can I put the Debian ISO file on a dds
>   and boot/install from that?

Booting off a tape should work (most probably with the lifimages), but
you'd also try booting off the network. This is what I prefer - if
you've set up the daemons once, you can boot off all machines with
that :)

MfG, JBG

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> Thanks! Changing NCR_700_MAX_TAGS to 1 in drivers/scsi/53c700.h did the
> trick. Will I now have poor disk performance? If so, might I get away
> with setting it to something higher, like 2 or 4, maybe?

I could never run IO stably at anything higher than 1. The drives don't
seem to handle it properly, the error recovery mechanisms seem less
than perfect, and the box just hangs.
 
> I've not heard of tagged command queues before - the idea seems to be to
> transfer data to the drive as early as possible, but make decisions as
> to what should be written first at a later stage. Is that correct?
> 
> http://lists.parisc-linux.org/pipermail/parisc-linux/2002-February/015465.html
> says that no tagged queue is a bad thing. Why is that?

You misunderstand, I *removed* the tag-queue code from the driver and
*that* was bad. We're only asking that you reduce the queue size to 1 or
2. Infact higher numbers might be okay, but 16 is definately too high.

> That's a good idea. Where should I send the entry? Here?

You can checkout the entire website via CVS from cvs.parisc-linux.org,
there are CVS instructions on www.parisc-linux.org. The CVS file your
are particularly interested in is:

http://cvs.parisc-linux.org/web/src/faq/index.x?rev=1.40&content-type=text/vnd.viewcvs-markup

Generate a diff against that file, which includes your new entry, and 
voila you've added an entry to the FAQ, praise will rain down on you,
and you will never be forgotten :)

Many thanks,

c.



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M. Grabert wrote:
> On Fri, 20 Feb 2004, Joel Soete wrote:
> 
> 
>>on my b2k since I can run 2.6 (32bit with gcc-3.3 or 64bit with gcc-3.0)
>>i noticed from time to time such dmesg:
>>sym0:5:0: ABORT operation timed-out.
>>sym0:5:0: ABORT operation started.
> 
> 
> [...]
> 
> 
>>sym0:5:0: ABORT operation timed-out.
>>sym0:5:0: DEVICE RESET operation started.
>>sym0:5:0: DEVICE RESET operation timed-out.
>>sym0:5:0: BUS RESET operation started.
>>sym0: SCSI BUS reset detected.
>>sym0: SCSI BUS has been reset.
>>sym0:5:0: BUS RESET operation complete.
>>
>>and during this time the system naturaly hang.
> 
> 
> (or is at least *very* slow)
> 
hmm for me everything stop: ls, top, ... every cmd are pending.
> 
>>scsi id 5 is the one of the working boot disk (a quantum model atlas5-9lvd)
>>and if there is well a second disk (a seagate model ST336704LC) it is not
>>used.
> 
> 
> Had the same problem when attaching a SE-SCSI device (also a Seagate, 20GB)
> on my C3k (which has 2 internal LVD SCSI-drives).
> 
> Got rid of it by not using the SE-SCSI driver ;)
> Try to physically detach the (not-used) ST336704LC.
> 
It is an internal disk also but as I don't use it any more, I can try to remove it ;)

> 
>>OTC with 2.4 and sym2 driver, I never noticed this behavior (even with recent
>>2.4.25-rc?-pa0 :) ), so I presume that there is no disk failure (and a dd
>>if=/dev/sda of=/dev/null bs=1024k reach to read fully the disk without any
>>error).
> 
> 
> Yes, I think reading is fine, just (lots of) writing is triggering it.

Max, thanks for advise,
	Joel


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Matthew Wilcox wrote:
> On Fri, Feb 20, 2004 at 07:04:26PM +0100, Joel Soete wrote:
> 
>>Hi all,
>>
>>My collegue make me notice that the N4k on which I can test Linux was supplied
>>with 4Gb of ram (which if confirm at boot prompt) but Linux only see 2Gb.
>>
>>It is a dual cpu machine, is that 1/2 ram dedicated to 1 cpu and the other
>>1/2 to the 2d cpu?
> 
> 
> Unlikely.  As I recall, the N4k diagram looks like this:
> 
> <-PCI-> Elroy <-Ropes\      PA <-+-> PA        PA <-+-> PA       /Ropes-> Elroy
> <-PCI-> Elroy <-Ropes-\         DEW       RAM      DEW          /-Ropes-> Elroy
> <-PCI-> Elroy <-Ropes--> IKE <-Merced-> Stretch <-Merced-> IKE <--Ropes-> Elroy
> <-PCI-> Elroy <-Ropes-/         DEW       RAM      DEW          \-Ropes-> Elroy
> <-PCI-> Elroy <-Ropes/      PA <-+-> PA        PA <-+-> PA       \Ropes-> Elroy
> 
> So the RAM is uniformly-accessible from all CPUs, but the IO is not.

That is also what I believe to have understood from our previous talk about N Stretch mmu
(but I am never sure to well undertand, thanks to confirm)

> 
> If you look at pat_memconfig() in arch/parisc/kernel/inventory.c, you'll
> see how we try to figure out what memory ranges are in the machine.
> Want to try debugging that, see what's being reported by firmware?
> 
I will try.

Many thanks,
	Joel


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On Sat, Feb 21, 2004 at 12:05:09PM -0500, Carlos O'Donell wrote:
> > Thanks! Changing NCR_700_MAX_TAGS to 1 in drivers/scsi/53c700.h did the
> > trick. Will I now have poor disk performance? If so, might I get away
> > with setting it to something higher, like 2 or 4, maybe?
> 
> I could never run IO stably at anything higher than 1. The drives don't
> seem to handle it properly, the error recovery mechanisms seem less
> than perfect, and the box just hangs.

So, um, maybe we should change the default?  Nobody seems to be
investigating why this happens, so I don't see why our users should
suffer.  I doubt anyone's going to be terribly motivated to track this
problem down for such old machines, so let's just sacrifice a little
performance for stability.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Subject: [parisc-linux] glibc-2.3.3 & gcc-snapshot (3.5.0) pb: followup
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Carlos,

Carlos O'Donell wrote:
>>>But now I need more to try to complete job because:
>>>make[2]: *** [/Develop/parisc-linux/build/glibc/sunrpc/xbootparam_prot.stmp]
> 
> 
> This is the first time that the loader you built is used. If the loader
> is in anyway broke, it will *always* die here first. Just remember this
> glibc haiku when you are coding:
> 
> 	Loader code is bad.
> 	Dying in sunrpc.
> 	Blame relocations.
> 
> :)
> 
It takes me some more time because I would test patch by patch with gcc-3.3 if nothing was broken.
But all those patch seems ok with gcc-3.3 (just have to revert it and re-run with make -k check ;) )

That said, I so have on a system (a n4k runing a 64bit 2.6) a ld.so and libc.so build with gcc-3.5 (let me suffix with (3.5) ie: 
ld.so(3.5) and libc.so(3.5)). On another system (a b2k the same 64bit 2.6), I build with gcc-3.3.3 a ld.so(3.3) and libc.so(3.3).

The cmd:
CPP='/Develop/parisc-linux/xc/bin/hppa-linux-gcc -E -x c-header'  /Develop/parisc-linux/build/glibc/elf/ld.so.1
--library-path 
/Develop/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Develop/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/Develop/parisc-linux/build/glibc/nss:/Develop/parisc-linux/build/glibc/nis:/Develop/p
arisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/build/glibc/linuxthreads
/Develop/parisc-linux/build/glibc/sunrpc/rpcgen -Y ../scripts -c rpcsvc/bootparam_prot.x
-o /Develop/parisc-linux/build/glibc/sunrpc/xbootparam_prot.T

failled with gcc-3.5
otc ok with gcc-3.3

Now if on the N I replace libc.so(3.5) by libc.so(3.3) the cmd (ie using ld.so(3.5)) always failled
OTC if on the B I replace libc.so(3.3) by libc.so(3.5) the cmd (ie using ld.so(3.3)) works fine.
so it confirms that the loader is broken :(

So I have to figure out what goes wrong in "relocation". Can you help me by pointing out some files and may functions to specialy 
analyse :).

Thanks in advance,
	Joel

BTW: The previous mentioned patch are (afaik) of general interest (not hppa specific) but would you like that I submit you first 
so that you could submit it to glibc maintainers or do you prefer that i manage that myself?



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On Thu, Feb 19, 2004 at 11:33:04AM +0200, dub@latnet.lv wrote:
> BTW, it's not possible to navigate to
> http://cvs.parisc-linux.org/download/ from  http://cvs.parisc-linux.org/

I think that's ok. It's just convient to build the kernels
on the same machine that's hosting CVS. It's not obvious to
me a link from cvs.p-l.o is needed since we have a link from
the www.p-l.org navigation bar.

www.p-l.o has a "Prebuilt binaries" in the navigation bar.
And from there, a link to the cvs.p-l.o/download/autobuild-kernels/. 
I'll add links for linux-2.4 and linux-2.6 kernel downloads.


> How to find out status of pasisc-linux.org kernels? (stable vs testing)

Normally, follow the conversations on parisc-linux mailing list.
I don't know how useful bugs.debian.org is for kernel packages.
"stable" hppa kernel is horridly stale (kernel-image-2.4.18*).
Because of security bugs, folks should be using at least 2.4.24.
(2.4.25 is the lastest available, not).
2.6 kernels seem to be working well for me (except for SMP).
But it looks like the most recent debian upload was 2.4.21 based.

I see that http://cvs.parisc-linux.org/downloads/autobuild-kernels/32/
has a Packages.gz. But I don't know how the sources.list entry needs
to look for apt-get to find it.

hth,
grant


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On Thu, Feb 19, 2004 at 02:54:24PM -0500, Jesse Dougherty wrote:
> If anyone wants any, we are giving them away, I only ask
> that you pay for shipping out of Tampa (33762).

That's generous! Thanks!
(I have several sitting here and can reccomend them)

> They take either FWD or SE drives and the capacity is 8 low profile
> drives.

FYI, the disks inside are *USUALLY* Single Ended (ie LVD) SCSI with 80pin
SCA connectors. An additional circuit in the disk "carrier" (aka "sled")
converts to HVD or forces to SE mode. I'm using 73G SCSI drives in such
a Jamaica disk enclosure today. Problem is HVD and SE SCSI only support
up to 40 MB/s.

IIRC, this was the first HP disk enclosure which supported hotplug on HPUX.

grant


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On Sat, Feb 21, 2004 at 05:52:41PM -0700, Grant Grundler wrote:
> Normally, follow the conversations on parisc-linux mailing list.
> I don't know how useful bugs.debian.org is for kernel packages.
> "stable" hppa kernel is horridly stale (kernel-image-2.4.18*).
> Because of security bugs, folks should be using at least 2.4.24.
> (2.4.25 is the lastest available, not).
> 2.6 kernels seem to be working well for me (except for SMP).
> But it looks like the most recent debian upload was 2.4.21 based.

Wups, a common misconception by people not used to how Debian does things.
The Debian 2.4.x kernels receive backported security fixes rather than
just updating to the most recent version.  I can't say I entirely agree
with this policy, but it is how Debian security works.

See http://www.debian.org/security/ for announcements of newer
kernel versions.  For some reason, there's no 2.4.18-hppa update yet.
I don't know why that is, but I presume someone's working on it.

team@security.debian.org added to the cc list, in case there's anything
I can do to help.  Please remove them from the CC list if your reply
won't be of interest to them.

> I see that http://cvs.parisc-linux.org/downloads/autobuild-kernels/32/
> has a Packages.gz. But I don't know how the sources.list entry needs
> to look for apt-get to find it.

Something like:

deb http://cvs.parisc-linux.org/downloads/autobuild-kernels/ 32/

should do the trick, but I think you have the URL wrong.  I get:

/downloads/autobuild-kernels/32: unknown location

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Fri, Feb 20, 2004 at 07:07:19PM +0000, M. Grabert wrote:
> 
> > sym0:5:0: ABORT operation timed-out.
> > sym0:5:0: DEVICE RESET operation started.
> > sym0:5:0: DEVICE RESET operation timed-out.
> > sym0:5:0: BUS RESET operation started.
> > sym0: SCSI BUS reset detected.
> > sym0: SCSI BUS has been reset.
> > sym0:5:0: BUS RESET operation complete.
> >
> > and during this time the system naturaly hang.

The "hang" is because no IO's are processed until 3 seconds
after the BUS RESET is issued.

> Got rid of it by not using the SE-SCSI driver ;)
> Try to physically detach the (not-used) ST336704LC.

I was pretty sure "LC" suffix meant LVD with SCA 80 pin connector.
Specs on seagate.com are easy to find if you know the model.

If both internal devices are LVD, check early sym2 dmesg output
to verify the SCSI bus is operating in LVD mode (vs SE).

grant


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On Fri, Feb 20, 2004 at 06:21:40PM +0000, Matthew Wilcox wrote:
> Unlikely.  As I recall, the N4k diagram looks like this:

Beautiful diagram! (I'm saving that one)
And I confirmed it is correct in case anyone had doubts.
(I did)

> So the RAM is uniformly-accessible from all CPUs, but the IO is not.

I don't think there is much penalty for CPU's to access MMIO space
on "the other side". MMIO reads are so expensive anyway, I'd doubt
it would make that much difference.

> If you look at pat_memconfig() in arch/parisc/kernel/inventory.c, you'll
> see how we try to figure out what memory ranges are in the machine.
> Want to try debugging that, see what's being reported by firmware?

I'm pretty sure it will look like this:
RAM      Phys Address
0-2GB -> 0-2GB
      -> 2-4GB I/O Space (mostly PCI MMIO)
2-4GB -> 4-6GB (courtesy of the memory controller)

The N-class was the first box which has an I/O hole from 2-4GB
physical address range. I hope Joel will be able to confirm this.
If not, I likely have documentation to confirm this.

grant


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On Sat, Feb 21, 2004 at 07:01:39PM +0000, Joel Soete wrote:
> It takes me some more time because I would test patch by patch with gcc-3.3 
> if nothing was broken.
> But all those patch seems ok with gcc-3.3 (just have to revert it and 
> re-run with make -k check ;) )

Yes, it is a lot of work. The fame will all be yours though.
 
> So I have to figure out what goes wrong in "relocation". Can you help me by 
> pointing out some files and may functions to specialy analyse :).

My haiku was really intended to be a joke. Anything could be wrong with
the loader, you have to run it through gdb to get a usefull trace. Even
then you won't have symbols and you'll have to learn to decode the
address from /proc/self/maps and an 'objdump -d xxxxxx.so'. From there
you can find the offending code, go back to the code and examine if it
does anything odd... perhaps isolate what the code does in a testcase
that gcc-3.5 does incorreclty.
 
> BTW: The previous mentioned patch are (afaik) of general interest (not hppa 
> specific) but would you like that I submit you first so that you could 
> submit it to glibc maintainers or do you prefer that i manage that myself?

You should:

a. Make sure that i386 builds with your patches, and passes the
   testsuite without regressions.
b. Cleanup the patches, make *sure* your mailer doesn't wrap them, the
   previous patches were wrapped and broken.
c. Write a 'Changelog' entry for the changes, and describe why you are
   making these changes (e.g. compiling with gcc-3.5). These entries
   have a very special format, look closely, and follow the GNU coding
   convetions.
d. Submit them separately, with a description, changelog, and inline
   patch to the libc-alpha mailing list.

This will be a wonderful learning experience! :)

c.



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On Sat, Feb 21, 2004 at 06:24:36PM +0000, Matthew Wilcox wrote:
> > I could never run IO stably at anything higher than 1. The drives don't
> > seem to handle it properly, the error recovery mechanisms seem less
> > than perfect, and the box just hangs.
> 
> So, um, maybe we should change the default?  Nobody seems to be
> investigating why this happens, so I don't see why our users should
> suffer.  I doubt anyone's going to be terribly motivated to track this
> problem down for such old machines, so let's just sacrifice a little
> performance for stability.

It just doesn't work on those older boxes? I'm not quite sure how much
more investigation I can do. I mean I've got my 715/50's all running, I
could build a few more kernels and see what's going on.

I could also commit a change to lower the max tags down to 1, that seems
a little harsh for performance, but all those perf people can crank it
back up. Perhaps a build time configure option?

c.



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On Sat, Feb 21, 2004 at 07:58:49AM +0000, Stuart Brady wrote:
> Thanks! Changing NCR_700_MAX_TAGS to 1 in drivers/scsi/53c700.h did the
> trick. Will I now have poor disk performance? If so, might I get away
> with setting it to something higher, like 2 or 4, maybe?

You can try, but I don't think it's worth it.

> I've not heard of tagged command queues before - the idea seems to be to
> transfer data to the drive as early as possible, but make decisions as
> to what should be written first at a later stage. Is that correct?

Sort of yes. The reasons are a bit more complicated than that.
Key reasons are better utilization of disk buffer (w/o enabling WCE)
and allow disk firmware to optimize for maximum throughput.
There are tradeoffs and caveats to both.

> > Maybe a FAQ entry for "715/xxx hangs" could be your first contribution?
> 
> That's a good idea. Where should I send the entry? Here?

Yes please. Making a diff against the file carlos pointed at
would be easiest for me. But I'll take a single paragraph
in plain text as well.

The FAQ entry should mention which machines/SCSI controllers/disks
are affected and how to set the queuedepth. Anything else is
extra credit and I reserve the right to edit it out. :^)

thanks,
grant

> -- 
> Stuart Brady
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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On Sun, Feb 22, 2004 at 01:20:33AM +0000, Matthew Wilcox wrote:
> deb http://cvs.parisc-linux.org/downloads/autobuild-kernels/ 32/
> 
> should do the trick, but I think you have the URL wrong.  I get:
> 
> /downloads/autobuild-kernels/32: unknown location

oopps...my bad. It's "download" (without 's')
And I confirmed the following sources.list line works:

deb http://cvs.parisc-linux.org/download/autobuild-kernels/ 32/

apt-get update says:
Hit http://cvs.parisc-linux.org 32/ Packages                                   
Ign http://cvs.parisc-linux.org 32/ Release                                    

And dselect doesn't see the kernel-image-2.4.25-pa0 .deb.
(I ran "update" from dselect menu)

DOH! two things:
1) I'm doing this on an a500 - use 64/ instead
2) packages are called "palinux-64-2.4...." (not "kernel-image-2.4...")

hrmm...dselect is getting:
Err http://cvs.parisc-linux.org 64/ palinux-64-2.4.25-pa0 0-2        
  404 Not Found
...
Failed to fetch http://cvs.parisc-linux.org/download/autobuild-kernels/./palinux-64-2.4.25-pa0_0-2_all.deb  404 Not Found
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

OIC... '64/' is missing. Ideas?

thanks,
grant


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From: Stuart Brady <sdbrady@ntlworld.com>
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Subject: [parisc-linux] [PATCH] include/linux/soundcard.h endian fix
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Xref: news.gmane.org gmane.linux.ports.parisc:20908

Hi,

It seems that <linux/soundcard.h> defines AFMT_S16_NE as AFMT_S16_LE on
hppa. Both GCC 3.0 and 3.3 predefine __hppa__, but not HPPA. IMO, the
bug is in soundcard.h, not GCC.

Index: soundcard.h
===================================================================
RCS file: /var/cvs/linux-2.4/include/linux/soundcard.h,v
retrieving revision 1.6
diff -u -r1.6 soundcard.h
--- soundcard.h	26 Jun 2003 15:08:08 -0000	1.6
+++ soundcard.h	21 Feb 2004 16:04:12 -0000
@@ -179,7 +179,7 @@
  * Some big endian/little endian handling macros
  */
 
-#if defined(_AIX) || defined(AIX) || defined(sparc) || defined(__sparc__) || defined(HPPA) || defined(PPC) || defined(__mc68000__)
+#if defined(_AIX) || defined(AIX) || defined(sparc) || defined(__sparc__) || defined(HPPA) || defined(__hppa__) || defined(PPC) || defined(__powerpc__) || defined(__mc68000__)
 /* Big endian machines */
 #  define _PATCHKEY(id) (0xfd00|id)
 #  define AFMT_S16_NE AFMT_S16_BE

I've added __powerpc__ too, because PPC won't be defined if you compiled
with -ansi.

I noticed this problem when looking at Timidity, which was writing big
endian data with AFMT_S16_NE. The OSS 1.1 API Spec[1] (page 38) states:

"The AFMT_S16_NE format can be used when a program wants to encode or
decode 16-bit samples locally. It automatically selects the right format
for the CPU architecture being compiled for. In this way it's usually
possible to simply use signed short format to store the samples."

This doesn't really seem to make _solid_ promises that the format
matches the architecture's endianness - "Right format?" "Usually?"
I wonder whether Timidity is making an incorrect assumption?

Would it be better to do the following? :

#ifdef(__BYTE_ORDER)
#  if defined(__BIG_ENDIAN)
#    if __BYTE_ORDER == __BIG_ENDIAN
#      define AFMT_S16_NE AFMT_S16_BE
#    endif
#  elif defined(__LITTLE_ENDIAN)
#    if __BYTE_ORDER == __LITTLE_ENDIAN
#      define AFMT_S16_NE AFMT_S16_LE
#    endif
#  end if
#endif

After this, if AFMT_S16_NE is not defined, it might be worth checking
the appropriate system-specific predefined macros[2]. If it's still not
defined, I think is that it's better _not_ to assume little endian. I've
left out __PDP_ENDIAN - I doubt anything uses it these days.


[1] http://www.opensound.com/pguide/oss.pdf

[2] Big endian: _AIX, AIX, sparc, __sparc__, __mc68000__, __m68k__,
MIPSEB, __MIPSEB__, __ARMEB, HPPA, __hppa__, PPC, __ppc_, __PPC__,
__powerpc__. Little endian: i386, __i386__, __x86_64__, __amd64__,
__sh__, __vax__ (yes, really!), MIPSEL, __MIPSEL__, and __ARMEL__,
__alpha, __alpha__, __ia64__. It seems that ppc, hppa, ia64, alpha,
sparc, mips, arm and superh have both big and little endian modes.
-- 
Stuart Brady


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Subject: [parisc-linux] [PATCH] Harmony driver - Reject AFMT_S16_LE (Little
	Endian)
Date: Sun, 22 Feb 2004 09:20:57 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:20909

Hello,

The OSS specification (http://www.opensound.com/pguide/oss.pdf -
page 33) states:

"It is very important to check that the value returned in the argument
after the [SNDCTL_DSP_SETFMT] ioctl call matches the requested format.
If the device doesn't support this particular format, it rejects the
call and returns another format that is supported by the hardware."

I would suggest the following change to the Harmony driver:

Index: harmony.c
===================================================================
RCS file: /var/cvs/linux-2.4/drivers/sound/harmony.c,v
retrieving revision 1.28
diff -u -r1.28 harmony.c
--- harmony.c	22 Jun 2002 09:05:59 -0000	1.28
+++ harmony.c	22 Feb 2004 05:35:46 -0000
@@ -641,14 +641,14 @@
 			switch (ival) {
 			case AFMT_MU_LAW:	new_format = HARMONY_DF_8BIT_ULAW; break;
 			case AFMT_A_LAW:	new_format = HARMONY_DF_8BIT_ALAW; break;
-			case AFMT_S16_LE:	/* fall through, but not really supported */
-			case AFMT_S16_BE:	new_format = HARMONY_DF_16BIT_LINEAR;
-						ival = AFMT_S16_BE;
-						break; 
+			case AFMT_S16_BE:	new_format = HARMONY_DF_16BIT_LINEAR; break;
 			default: {
 				DPRINTK(KERN_WARNING PFX 
 					"unsupported sound format 0x%04x requested.\n",
 					ival);
+				ival = AFMT_S16_BE;
+				if (put_user(ival, (int *) arg))
+					return -EFAULT;
 				return -EINVAL;
 			}
 			}

Since mu-law and a-law aren't the most popular of formats, I think
AFMT_S16_BE (signed, 16-bit, big endian) is the best thing to return.
Some drivers don't seem to return a supported format in arg - I'm not
sure why. At the very least, I think -EINVAL should be returned, and the
format should not be set. (Unless of course, the driver actually _does_
the conversion - okay if I implement this?)

This change may break some apps. The soundcard.h fix might make a
significant difference. Anything else was writing big endian data using
a little endian format.

One question: are there any audio devices for hppa that need drivers,
that have documentation? I see that audio on the J5k/C3k is unsupported,
but there are apparently no docs for it. Audio on the 705 and 710 doesn't
seem supported either. Again, no docs AFAICS.
-- 
Stuart Brady


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From: Stuart Brady <sdbrady@ntlworld.com>
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Subject: Re: [parisc-linux] [PATCH] Harmony driver - Reject AFMT_S16_LE
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Xref: news.gmane.org gmane.linux.ports.parisc:20910

I said:

> One question: are there any audio devices for hppa that need drivers,
> that have documentation? I see that audio on the J5k/C3k is unsupported,
> but there are apparently no docs for it. Audio on the 705 and 710 doesn't
> seem supported either. Again, no docs AFAICS.

I do apologise - I've now noticed that there _is_ a AD1889 driver,
although I don't know whether it works on hppa.

http://lists.parisc-linux.org/pipermail/parisc-linux/2002-January/015138.html
looks quite useful - I'll have to see if I can get docs on the PSB2160.

It's interesting that the 720/730/750 has 3 channel beeper sound. Could
someone tell me the name of the chip, please?

http://members.chello.nl/h.otten/vortexion.htm has a list of popular
sound chips for microcomputers in the 80s. It'd be great if it turned
out to be an AY-3-8910, YM2149 or SN76489, as there's a lot of music
that's been written for those chips.
-- 
Stuart Brady


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Hello,

when I configure lastest kernel from cvs to use parport and lp driver as 
module, I get the following warning when running "make modules_install":

WARNING: /lib/modules/2.6.3-pa0/kernel/drivers/char/lp.ko needs unknown 
symbol eisa_in8
WARNING: /lib/modules/2.6.3-pa0/kernel/drivers/char/parport-pc.ko needs 
unknown symbol eisa_in8

Is in both files a definition for io.h missing?

Greetings,   
Ruediger


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Carlos O'Donell wrote:
> 
> > Thanks! Changing NCR_700_MAX_TAGS to 1 in drivers/scsi/53c700.h did the
> > trick. Will I now have poor disk performance? If so, might I get away
> > with setting it to something higher, like 2 or 4, maybe?
> 
> I could never run IO stably at anything higher than 1. The drives don't
> seem to handle it properly, the error recovery mechanisms seem less
> than perfect, and the box just hangs.
It really depends on the drive. I have a Fujitsu Enterprise and it has a
specified tag queue of 128 commands. So if something fails, it is the
driver or HP's hardware.

I have a 715 scorpio and when I used ext2 or reiser with a tag queue of
16 I had very frequent freezes up to a point were the system wouldn't
even mount the partition.

There was a discussion that hp set it to 2 for workstations and to 8 for
servers. I have set it right now to 8 (since mavbe the NCR 7100 I have
doesn't even support more) and I use XFS instead of reiser. I had no
more problems...

I would set the tag queue as default to 8 and not to 16, to stay on the
safe side. Couldn't it be made configurable from the kernel
configuration menu?


What I notivced that some drives seem to be incompatible. I had 2 hard
disks that worked together (an original quantum divre rebranded HP and
an IBM disk). Since my ibm disk died I substitued it with the Fujitsu,
used a new Filesystem and a newer kernel. There was no way to see both
disks when linux booted. I had to remove the original HP disk and
substitute it (a nuisance, since it contained the home directories).
Attaching each time only one of the two disks recognized the correct
disk respectively but both disk weren't. Another disk had no problem.

-Riccardo


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On Sun, Feb 22, 2004 at 12:49:09PM +0100, Ruediger Scholz wrote:
> when I configure lastest kernel from cvs to use parport and lp driver as 
> module, I get the following warning when running "make modules_install":
> 
> WARNING: /lib/modules/2.6.3-pa0/kernel/drivers/char/lp.ko needs unknown 
> symbol eisa_in8
> WARNING: /lib/modules/2.6.3-pa0/kernel/drivers/char/parport-pc.ko needs 
> unknown symbol eisa_in8
> 
> Is in both files a definition for io.h missing?

Nope, you've found a better problem than that.  We aren't exporting
eisa_in8 to modules.  Fix coming up shortly.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Riccardo wrote:
> Carlos O'Donell wrote:
> 
>>>Thanks! Changing NCR_700_MAX_TAGS to 1 in drivers/scsi/53c700.h did the
>>>trick. Will I now have poor disk performance? If so, might I get away
>>>with setting it to something higher, like 2 or 4, maybe?
>>
>>I could never run IO stably at anything higher than 1. The drives don't
>>seem to handle it properly, the error recovery mechanisms seem less
>>than perfect, and the box just hangs.
> 
> It really depends on the drive. I have a Fujitsu Enterprise and it has a
> specified tag queue of 128 commands. So if something fails, it is the
> driver or HP's hardware.
> 
> I have a 715 scorpio and when I used ext2 or reiser with a tag queue of
> 16 I had very frequent freezes up to a point were the system wouldn't
> even mount the partition.
> 
> There was a discussion that hp set it to 2 for workstations and to 8 for
> servers. I have set it right now to 8 (since mavbe the NCR 7100 I have
> doesn't even support more) and I use XFS instead of reiser. I had no
> more problems...
> 
> I would set the tag queue as default to 8 and not to 16, to stay on the
> safe side. Couldn't it be made configurable from the kernel
> configuration menu?
> 
Good idea.
> 
> What I notivced that some drives seem to be incompatible. I had 2 hard
> disks that worked together (an original quantum divre rebranded HP and
> an IBM disk). Since my ibm disk died I substitued it with the Fujitsu,
> used a new Filesystem and a newer kernel. There was no way to see both
> disks when linux booted.
And you are sure that scsi id are well different and scsi chain well terminated, I supose.
> I had to remove the original HP disk and
> substitute it (a nuisance, since it contained the home directories).
> Attaching each time only one of the two disks recognized the correct
> disk respectively but both disk weren't. Another disk had no problem.
> 
hmm, I leaved the same experience but with two external disks of exactly the same type (same supplier: hp, same manufactor: 
seagate, same product reference) but with a small firmware revision difference. Unfortunately, this pb only occured under linux 
:(. Now the disk is broken again; so no chance to test it with more recent kernel 2.4 or 2.6 :(

Joel


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On Sun, Feb 22, 2004 at 09:20:57AM +0000, Stuart Brady wrote:
...
> One question: are there any audio devices for hppa that need drivers,
> that have documentation? I see that audio on the J5k/C3k is unsupported,

As you noted ad1889 is available but only sort-of works:
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-April/019650.html

I posted the only documentation we have for ad1889:
http://lists.parisc-linux.org/pipermail/parisc-linux/2002-June/016704.html

If you have patches for ad1889, I'm happy to test (and commit) them for you.

thanks,
grant


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> c. Write a 'Changelog' entry for the changes, and describe why you are
>    making these changes (e.g. compiling with gcc-3.5). These entries
>    have a very special format, look closely, and follow the GNU coding
>    convetions.

I'm not sure about glibc but in gcc ChangeLog entries only include
a concise list of changes for each function/macro changed.  The "why"
goes in your patch submission letter.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Xref: news.gmane.org gmane.linux.ports.parisc:20917

pre-scriptum: I am sending this to the list because when trying to send
an email directly to Joel I get his MTA answering I have invalid headers
(tried two times)
Joel Soete wrote:

> > I would set the tag queue as default to 8 and not to 16, to stay on the
> > safe side. Couldn't it be made configurable from the kernel
> > configuration menu?
> >
> Good idea.
It is not me that can make changes there, but it seems to me that 8 is
reasonable. Also, a kernel config option would make this parameter
obvious to everybody. I had only a small preformance decrease from 16 to
8 tags (well, disk IO sucks anyway under linux-pa and my old box). While
2 is pure sufference :)

> And you are sure that scsi id are well different and scsi chain well terminated, I supose.
Yes, the internal chain is terminated with the original HP terminator
and I removed the disk internal ones.
In fact substituing the original HP disk with another one removed the
problem (strangely enough, with the older IBM drive as a second drive I
had sometimes freezes but this problem did not appear).


> hmm, I leaved the same experience but with two external disks of exactly the same type (same supplier: hp, same manufactor:
> seagate, same product reference) but with a small firmware revision difference. Unfortunately, this pb only occured under linux
> :(. Now the disk is broken again; so no chance to test it with more recent kernel 2.4 or 2.6 :(

I used a failry recent kernel for there test, I believe 2.4.23.

The scsi code doesn't seem to be so stable and performing as compared to
hp-ux....

-Ric


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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Hanging with kernels >= 2.4.22
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Hi Ricardo,

Riccardo wrote:
> pre-scriptum: I am sending this to the list because when trying to send
> an email directly to Joel I get his MTA answering I have invalid headers
> (tried two times)

Sorry my ISP pb certainly, I will try to check with support. Thanks for advise ;)

> Joel Soete wrote:
> 
> 
>>>I would set the tag queue as default to 8 and not to 16, to stay on the
>>>safe side. Couldn't it be made configurable from the kernel
>>>configuration menu?
>>>
>>
>>Good idea.
> 
> It is not me that can make changes there, but it seems to me that 8 is
> reasonable.
Agreed (anyway you can always suggest a patch, there are always well come :) )
> Also, a kernel config option would make this parameter
> obvious to everybody. I had only a small preformance decrease from 16 to
> 8 tags (well, disk IO sucks anyway under linux-pa and my old box). While
> 2 is pure sufference :)
> 
> 
>>And you are sure that scsi id are well different and scsi chain well terminated, I supose.
> 
> Yes, the internal chain is terminated with the original HP terminator
> and I removed the disk internal ones.
> In fact substituing the original HP disk with another one removed the
> problem (strangely enough, with the older IBM drive as a second drive I
> had sometimes freezes but this problem did not appear).
> 
> 
> 
>>hmm, I leaved the same experience but with two external disks of exactly the same type (same supplier: hp, same manufactor:
>>seagate, same product reference) but with a small firmware revision difference. Unfortunately, this pb only occured under linux
>>:(. Now the disk is broken again; so no chance to test it with more recent kernel 2.4 or 2.6 :(
> 
> 
> I used a failry recent kernel for there test, I believe 2.4.23.
> 
> The scsi code doesn't seem to be so stable and performing as compared to
> hp-ux....
> 
Certainly for numerous reason but on the other hand it is not ported (i don't mean portable, i am quiet sure it is) other platform :).

Thanks for info,
	Joel


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  About Us This email is to introduce Repharm; a knowledge management =
company that provides installed customer lists for companies such as =
Oracle, PeopleSoft, Siebel, etc. Listed below are just a few of the =
customer lists we have. Some of the fields we include in our databases =
are: Company, Street, City, State/Province, ZipCode/Postal Code, =
Country, Telephone, Url, Sales/Revenue, Total Employees, SIC Code, =
Primary Industry and Parent Company. Contacts/Titles include: Chief =
Executive Officer, Chief Financial Officer, Chief Information Officer, =
Vice President Sales/Marketing, Vice President Human Resources, etc. We =
also provide Director/Manager level titles as well. We have obtained =
these lists through ongoing direct mail, fax and telemarketing =
campaigns, internet research, etc. Mike Gordon Repharm Tel: 905-721-8456 =
Fax: 905-721-1471 Email: repharm1@aol.com These are just a few of the =
lists we offer: ERP (Enterprise Resource Planning): Baan Epicor JD =
Edwards Lawson Made2Manage Mapics Marcam Oracle Peoplesoft SAP SSA CRM =
(Customer Relationship Management): Clarify E.piphany HNC Onyx Pivotal =
Siebel Vantive Xchange E-business Applications Ariba BMC BroadVision =
Commerce One Webtrends Middleware/Connectivity/App Servers/ Web Servers: =
Bea Systems Iona Unisys Operating Systems/Hardware/Software: COMPAQ HP =
3000 HP 9000 HP-UX IBM AS/400 IBM OS/390 Lotus Notes Microsoft Sun =
Microsystems DATABASE: DB2 FileMaker Informix Oracle SQL Sybase SUPPLY =
CHAIN: Agile i2 Technologies Manugistics QAD Webplan COMMUNICATIONS: =
ASPs CLECS ISPs E-COMMERCE: Dot Com Directory Consultant Directory =
Software Directory EXECUTIVE DIRECTORIES: CEO Directory CFO Directory =
CIO Directory Engineering Human Resources Purchasing Sales/Marketing =
INDUSTRY SPECIFIC LISTS: Agriculture, Forestry and Fishing =
Communications Construction Finance, Insurance and Real Estate =
Manufacturing Mining Public Administration Retail Trade Services =
Transportation Utilities Wholesale Trade FRONT OFFICE SERVICES: We offer =
the following Front Office Services: Fax Campaigns Telemarketing Direct =
Mail Customer Satisfaction Surveys=20


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  <DIV><FONT face=3DArial size=3D2>
  <DIV>About Us This email is to introduce Repharm; a knowledge =
management=20
  company that provides installed customer lists for companies such as =
Oracle,=20
  PeopleSoft, Siebel, etc. Listed below are just a few of the customer =
lists we=20
  have. Some of the fields we include in our databases are: Company, =
Street,=20
  City, State/Province, ZipCode/Postal Code, Country, Telephone, Url,=20
  Sales/Revenue, Total Employees, SIC Code, Primary Industry and Parent =
Company.=20
  Contacts/Titles include: Chief Executive Officer, Chief Financial =
Officer,=20
  Chief Information Officer, Vice President Sales/Marketing, Vice =
President=20
  Human Resources, etc. We also provide Director/Manager level titles as =
well.=20
  We have obtained these lists through ongoing direct mail, fax and=20
  telemarketing campaigns, internet research, etc. Mike Gordon Repharm =
Tel:=20
  905-721-8456 Fax: 905-721-1471 Email: repharm1@aol.com These are just =
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Edwards=20
  Lawson Made2Manage Mapics Marcam Oracle Peoplesoft SAP SSA CRM =
(Customer=20
  Relationship Management): Clarify E.piphany HNC Onyx Pivotal Siebel =
Vantive=20
  Xchange E-business Applications Ariba BMC BroadVision Commerce One =
Webtrends=20
  Middleware/Connectivity/App Servers/ Web Servers: Bea Systems Iona =
Unisys=20
  Operating Systems/Hardware/Software: COMPAQ HP 3000 HP 9000 HP-UX IBM =
AS/400=20
  IBM OS/390 Lotus Notes Microsoft Sun Microsystems DATABASE: DB2 =
FileMaker=20
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Manugistics QAD=20
  Webplan COMMUNICATIONS: ASPs CLECS ISPs E-COMMERCE: Dot Com Directory=20
  Consultant Directory Software Directory EXECUTIVE DIRECTORIES: CEO =
Directory=20
  CFO Directory CIO Directory Engineering Human Resources Purchasing=20
  Sales/Marketing INDUSTRY SPECIFIC LISTS: Agriculture, Forestry and =
Fishing=20
  Communications Construction Finance, Insurance and Real Estate =
Manufacturing=20
  Mining Public Administration Retail Trade Services Transportation =
Utilities=20
  Wholesale Trade FRONT OFFICE SERVICES: We offer the following Front =
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Subject: Re: [parisc-linux] Re: can't compile 2.4.24: pdc_cons.o problem!
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On Sat, Feb 21, 2004 at 11:51:00PM -0700, Grant Grundler wrote:
> Failed to fetch http://cvs.parisc-linux.org/download/autobuild-kernels/./palinux-64-2.4.25-pa0_0-2_all.deb  404 Not Found
> E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
> 
> OIC... '64/' is missing. Ideas?

deb http://cvs.parisc-linux.org/download/autobuild-kernels/64/ ./

Thanks to Paul Bame for putting a similar line on
	htt://cvs.parisc-linux.org/download/linux-2.4/

thanks,
grant


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On Sun, Feb 22, 2004 at 09:20:57AM +0000, Stuart Brady wrote:

> +				if (put_user(ival, (int *) arg))
> +					return -EFAULT;

I've been looking at the specification, I think this should have been:

return put_user(ival, (int *) arg));

I assumed that -EINVAL would be returned, but the example shows the
argument being changed, without the ioctl returning an error. I'm still
not sure whether "harmony_set_format(HARMONY_DF_16BIT_LINEAR)" is needed
when an unsupported format is requested.  The specification is not clear
to me. "Rejects" implies "does not set the format" to me.

I'm going to have to get a firm idea of what each driver currently does
(since they tend to do different things anyway), what the apps want, and
what the documentation states.

I've also added a SNDCTL_DSP_CHANNELS (needed for mikmod). Here is the
revised patch:

Index: harmony.c
===================================================================
RCS file: /var/cvs/linux-2.4/drivers/sound/harmony.c,v
retrieving revision 1.28
diff -u -r1.28 harmony.c
--- harmony.c	22 Jun 2002 09:05:59 -0000	1.28
+++ harmony.c	23 Feb 2004 03:28:38 -0000
@@ -641,18 +641,17 @@
 			switch (ival) {
 			case AFMT_MU_LAW:	new_format = HARMONY_DF_8BIT_ULAW; break;
 			case AFMT_A_LAW:	new_format = HARMONY_DF_8BIT_ALAW; break;
-			case AFMT_S16_LE:	/* fall through, but not really supported */
-			case AFMT_S16_BE:	new_format = HARMONY_DF_16BIT_LINEAR;
-						ival = AFMT_S16_BE;
-						break; 
+			case AFMT_S16_BE:	new_format = HARMONY_DF_16BIT_LINEAR; break;
 			default: {
 				DPRINTK(KERN_WARNING PFX 
 					"unsupported sound format 0x%04x requested.\n",
 					ival);
-				return -EINVAL;
+				ival = AFMT_S16_BE;
+				return put_user(ival, (int *) arg);
 			}
 			}
 			harmony_set_format(new_format);
+			return 0;
 		} else {
 			switch (harmony.data_format) {
 			case HARMONY_DF_8BIT_ULAW:	ival = AFMT_MU_LAW; break;
@@ -660,8 +659,8 @@
 			case HARMONY_DF_16BIT_LINEAR:	ival = AFMT_U16_BE; break;
 			default: ival = 0;
 			}
+			return put_user(ival, (int *) arg);
 		}
-		return put_user(ival, (int *) arg);
 
 	case SOUND_PCM_READ_RATE:
 		ival = harmony.dac_rate;
@@ -680,7 +679,17 @@
 		if (ival != 0 && ival != 1)
 			return -EINVAL;
 		harmony_set_stereo(ival);
-		return put_user(ival, (int *) arg);
+		return 0;
+
+	case SNDCTL_DSP_CHANNELS:
+		if (get_user(ival, (int *) arg))
+			return -EFAULT;
+		if (ival != 1 && ival != 2) {
+			ival = harmony.stereo_select == HARMONY_SS_MONO ? 1 : 2;
+			return put_user(ival, (int *) arg);
+		}
+		harmony_set_stereo(ival-1);
+		return 0;
 
 	case SNDCTL_DSP_GETBLKSIZE:
 		ival = HARMONY_BUF_SIZE;

Mikmod now plays audio, but it says "Loading" at the top and you can't
do anything in the UI. I'll look into this after I've fixed the mixer.
The internal speaker, headphones, and rear jack don't seem to fit well
with the existing mixer channels in OSS. Any recommendations?

I'm not sure how SOUND_PCM_WRITE_CHANNELS and SOUND_PCM_READ_CHANNELS
are handled. Looks like they're the same ioctl. How does that work?!
-- 
Stuart Brady


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Subject: Re: [parisc-linux] b2k scsi disk pb
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Hello Grant,

>The "hang" is because no IO's are processed until 3 seconds
>after the BUS RESET is issued.

Typicaly the behaviour observed.

>> Got rid of it by not using the SE-SCSI driver ;)
>> Try to physically detach the (not-used) ST336704LC.
>
>I was pretty sure "LC" suffix meant LVD with SCA 80 pin connector.
>Specs on seagate.com are easy to find if you know the model.

In fact according <http://www.seagate.com/cgi-bin/view.cgi?/scsi/st336704.lw>
it has the two possiblity SE or LVD according HW config (a side jumper J2
if i well understand)

>If both internal devices are LVD, check early sym2 dmesg output
>to verify the SCSI bus is operating in LVD mode (vs SE).

But here they seems to work together in LVD mode:
[snip]

Uniform CD-ROM driver Revision: 3.20
sym0: <895a> rev 0x1 at pci 0000:00:0f.0 irq 129
sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18i
sym0:0:0: ABORT operation started.
sym0:0:0: ABORT opera
ion complete.
sym0:0:0: DEVICE RESET operation started.
sym0:0:0: DEVICE RESET operation failed.
sym0:0:0: BUS RESET operation started.
sym0:0:0: BUS RESET operation failed.
sym0:0:0: HOST RESET operation started.
sym0:0:0: HOST RESET operation failed.
scsi: Device offlined - not ready after error recovery: host 0 channel 0
id 0 lun 0
  Vendor: QUANTUM   Model: ATLAS5-9LVD       Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:5:0: tagged command queuing enabled, command queue depth 16.
sym0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25.0 ns, offset 31)
  Vendor: SEAGATE   Model: ST336704LC        Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:6:0: tagged command queuing enabled, command queue depth 16.
sym0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25.0 ns, offset 31)
[snip]

Anyway what sym2 look for at scsi id 0?

I will try also later to remove ST disk ad advise ;)

Thanks for attention and advise,
    Joel




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>Beautiful diagram! (I'm saving that one)
Yes, Nice
>And I confirmed it is correct in case anyone had doubts.
(I did)

>> So the RAM is uniformly-accessible from all CPUs, but the IO is not.
>
>I don't think there is much penalty for CPU's to access MMIO space
>on "the other side". MMIO reads are so expensive anyway, I'd doubt
>it would make that much difference.
>
>> If you look at pat_memconfig() in arch/parisc/kernel/inventory.c, you'll
>> see how we try to figure out what memory ranges are in the machine.
>> Want to try debugging that, see what's being reported by firmware?
>
>I'm pretty sure it will look like this:
>RAM      Phys Address
>0-2GB -> 0-2GB
>      -> 2-4GB I/O Space (mostly PCI MMIO)
>2-4GB -> 4-6GB (courtesy of the memory controller)
>
>The N-class was the first box which has an I/O hole from 2-4GB
>physical address range. I hope Joel will be able to confirm this.
>If not, I likely have documentation to confirm this.
>
Awaiting I have a more detail look into code, I already have a cat of /proc/iomem:

palx4000:/Sources/Debian4hppa# cat /proc/iomem 
00000000-7fffffff : System RAM
  00000000-000009ff : PDC data (Page Zero)
  00100000-00451387 : Kernel code
  00451388-00605567 : Kernel data
fffffff004000000-fffffff07fffffff : LBA GMMIO
fffffff084000000-fffffff0ffffffff : LBA GMMIO
fffffff104000000-fffffff17fffffff : LBA GMMIO
fffffff204000000-fffffff27fffffff : LBA GMMIO
fffffff284000000-fffffff2ffffffff : LBA GMMIO
fffffff404000000-fffffff47fffffff : LBA GMMIO
fffffff504000000-fffffff57fffffff : LBA GMMIO
fffffff604000000-fffffff67fffffff : LBA GMMIO
fffffff804000000-fffffff87fffffff : LBA GMMIO
fffffff904000000-fffffff97fffffff : LBA GMMIO
fffffffa04000000-fffffffa7fffffff : LBA GMMIO
fffffffc04000000-fffffffc7fffffff : LBA GMMIO
fffffffd04000000-fffffffd7fffffff : LBA GMMIO
fffffffe04000000-fffffffe7fffffff : LBA GMMIO
ffffffff80000000-ffffffff81ffffff : LBA LMMIO
  ffffffff80000000-ffffffff80000fff : 0000:00:04.1
    ffffffff80000000-ffffffff80000007 : serial
    ffffffff80000008-ffffffff8000000f : serial
    ffffffff80000010-ffffffff80000017 : serial
    ffffffff80000038-ffffffff8000003f : serial
  ffffffff80001000-ffffffff80001fff : 0000:00:02.0
    ffffffff80001000-ffffffff80001fff : sym53c8xx
  ffffffff80002000-ffffffff80002fff : 0000:00:02.1
    ffffffff80002000-ffffffff80002fff : sym53c8xx
  ffffffff80003000-ffffffff800033ff : 0000:00:00.0
    ffffffff80003000-ffffffff800033ff : tulip
  ffffffff80004000-ffffffff800040ff : 0000:00:02.0
    ffffffff80004000-ffffffff800040ff : sym53c8xx
  ffffffff80005000-ffffffff800050ff : 0000:00:02.1
    ffffffff80005000-ffffffff800050ff : sym53c8xx
  ffffffff80040000-ffffffff8007ffff : 0000:00:00.0
  ffffffff80080000-ffffffff800800ff : 0000:00:01.0
    ffffffff80080000-ffffffff800800ff : sym53c8xx
  ffffffff80100000-ffffffff80100fff : 0000:00:01.0
    ffffffff80100000-ffffffff80100fff : sym53c8xx
ffffffff82000000-ffffffff83ffffff : LBA LMMIO
ffffffff84000000-ffffffff85ffffff : LBA LMMIO
ffffffff88000000-ffffffff89ffffff : LBA LMMIO
  ffffffff88000000-ffffffff8801ffff : 0000:20:00.0
  ffffffff88020000-ffffffff8803ffff : 0000:20:00.0
  ffffffff88040000-ffffffff880401ff : 0000:20:00.0
ffffffff8a000000-ffffffff8bffffff : LBA LMMIO
  ffffffff8a000000-ffffffff8a0003ff : 0000:28:00.0
    ffffffff8a000000-ffffffff8a0003ff : tulip
ffffffff90000000-ffffffff91ffffff : LBA LMMIO
ffffffff94000000-ffffffff95ffffff : LBA LMMIO
ffffffff98000000-ffffffff99ffffff : LBA LMMIO
ffffffffbffe0000-ffffffffbffe0fff : lba
ffffffffbffe2000-ffffffffbffe2fff : lba
ffffffffbffe4000-ffffffffbffe4fff : lba
ffffffffbffe8000-ffffffffbffe8fff : lba
ffffffffbffea000-ffffffffbffeafff : lba
ffffffffbfff0000-ffffffffbfff0fff : lba
ffffffffbfff4000-ffffffffbfff4fff : lba
ffffffffbfff8000-ffffffffbfff8fff : lba
ffffffffc0000000-ffffffffc1ffffff : LBA LMMIO
ffffffffc4000000-ffffffffc5ffffff : LBA LMMIO
ffffffffc8000000-ffffffffc9ffffff : LBA LMMIO
ffffffffd0000000-ffffffffd1ffffff : LBA LMMIO
ffffffffd4000000-ffffffffd5ffffff : LBA LMMIO
  ffffffffd4000000-ffffffffd401ffff : 0000:d0:00.0
  ffffffffd4020000-ffffffffd403ffff : 0000:d0:00.0
  ffffffffd4040000-ffffffffd40401ff : 0000:d0:00.0
ffffffffd8000000-ffffffffd9ffffff : LBA LMMIO
  ffffffffd8000000-ffffffffd801ffff : 0000:e0:00.0
  ffffffffd8020000-ffffffffd803ffff : 0000:e0:00.0
  ffffffffd8040000-ffffffffd80401ff : 0000:e0:00.0
fffffffffece0000-fffffffffece0fff : lba
fffffffffece4000-fffffffffece4fff : lba
fffffffffece8000-fffffffffece8fff : lba
fffffffffecf0000-fffffffffecf0fff : lba
fffffffffecf4000-fffffffffecf4fff : lba
fffffffffecf8000-fffffffffecf8fff : lba
fffffffffed00000-fffffffffed00fff : SBA
fffffffffed25000-fffffffffed25fff : CPU
fffffffffed40000-fffffffffed40fff : SBA
fffffffffff80000-fffffffffffaffff : Central Bus
fffffffffffb0000-fffffffffffdffff : Local Broadcast
fffffffffffe0000-ffffffffffffffff : Global Broadcast

Does it help?

Joel

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> Would it be better to do the following? :
> 
> #ifdef(__BYTE_ORDER)
> #  if defined(__BIG_ENDIAN)
> #    if __BYTE_ORDER == __BIG_ENDIAN
> #      define AFMT_S16_NE AFMT_S16_BE
> #    endif
> #  elif defined(__LITTLE_ENDIAN)
> #    if __BYTE_ORDER == __LITTLE_ENDIAN
> #      define AFMT_S16_NE AFMT_S16_LE
> #    endif
> #  end if
> #endif

yes, this is much better. If you include asm/byteorder.h then this
should always be defined. maybe add a #error to catch the (unlikely)
case where neither is defined?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: Achim.Stolze@t-online.de (Achim Stolze)
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Subject: [parisc-linux] Installation of new KDE 3.2
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Hello,

I have HPPA-Debian running on C180. The KDE which came with the ISOs I 
installed is version 2.2. Now I downloaded the sources for the new KDE 3.2.
The problem is that I don't know how to install all these individual 
files ...
Can somebody please help me ?

Thank you,

Achim.

Achim Stolze
Beim Lammkeller 10
D-88339 Bad Waldsee

Achim.Stolze@t-online.de



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On Mon, Feb 23, 2004 at 04:24:58AM -0800, Randolph Chung wrote:
> > Would it be better to do the following? :
> > 
> > #ifdef(__BYTE_ORDER)
> > #  if defined(__BIG_ENDIAN)
> > #    if __BYTE_ORDER == __BIG_ENDIAN
> > #      define AFMT_S16_NE AFMT_S16_BE
> > #    endif
> > #  elif defined(__LITTLE_ENDIAN)
> > #    if __BYTE_ORDER == __LITTLE_ENDIAN
> > #      define AFMT_S16_NE AFMT_S16_LE
> > #    endif
> > #  end if
> > #endif
> 
> yes, this is much better. If you include asm/byteorder.h then this
> should always be defined. maybe add a #error to catch the (unlikely)
> case where neither is defined?

This header is used in userland - is using <asm/byteorder.h> still okay?
<endian.h> defines both __LITTLE_ENDIAN and __BIG_ENDIAN - the fact that
one of these exists means nothing - you have to look at __BYTE_ORDER.
<asm/byteorder.h> will define one but not the other, and __BYTE_ORDER is
not defined. If a user includes <endian.h> followed by <sys/soundcard.h>,
and we use <asm/byteorder.h>, then both __LITTLE_ENDIAN and __BIG_ENDIAN
will be defined at the same time. How about this? :

Index: soundcard.h
===================================================================
RCS file: /var/cvs/linux-2.4/include/linux/soundcard.h,v
retrieving revision 1.6
diff -u -r1.6 soundcard.h
--- soundcard.h	26 Jun 2003 15:08:08 -0000	1.6
+++ soundcard.h	23 Feb 2004 15:15:23 -0000
@@ -39,6 +39,13 @@
 /* In Linux we need to be prepared for cross compiling */
 #include <linux/ioctl.h>
 
+/* Endian macros. Note that they have a different meaning in the kernel.
+#ifdef __KERNEL__
+#  include <asm/byteorder.h>
+#else
+#  include <endian.h>
+#endif
+
 /*
  *	Supported card ID numbers (Should be somewhere else?)
  */
@@ -179,13 +186,28 @@
  * Some big endian/little endian handling macros
  */
 
-#if defined(_AIX) || defined(AIX) || defined(sparc) || defined(__sparc__) || defined(HPPA) || defined(PPC) || defined(__mc68000__)
-/* Big endian machines */
-#  define _PATCHKEY(id) (0xfd00|id)
-#  define AFMT_S16_NE AFMT_S16_BE
-#else
-#  define _PATCHKEY(id) ((id<<8)|0xfd)
-#  define AFMT_S16_NE AFMT_S16_LE
+#if defined(__BIG_ENDIAN)
+#  if defined(__KERNEL__) || (defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN)
+#    if defined(AFMT_S16_NE) || defined(_PATCHKEY)
+#      error AFMT_S16_NE (or _PATCHKEY) is already defined
+#    endif
+#    define AFMT_S16_NE AFMT_S16_BE
+#    define _PATCHKEY(id) (0xfd00|id)
+#  endif
+#endif
+
+#if defined(__LITTLE_ENDIAN)
+#  if defined(__KERNEL__) || (defined(__BYTE_ORDER) && __BYTE_ORDER == __LITTLE_ENDIAN)
+#    if defined(AFMT_S16_NE) || defined(_PATCHKEY)
+#      error AFMT_S16_NE (or _PATCHKEY) is already defined
+#    endif
+#    define AFMT_S16_NE AFMT_S16_LE
+#    define _PATCHKEY(id) ((id<<8)|0xfd)
+#  endif
+#endif
+
+#if !defined(AFMT_S16_NE)
+#  error Failed to define AFMT_S16_NE
 #endif
 
 /*

I suppose the system-specific tests aren't necessary - if you're using
our soundcard.h, then you have our <endian.h>, too. I think the #error
is a good idea for the same reason - if the #error happens, something
really is wrong, and apps might otherwise silently test for AFMT_S16_NE,
possibly even defining it themselves.

The test for AIX || _AIX strongly implies that this header was once
intended to be used on other systems. Should we just ignore that?

BTW, AFMT_S32_NE isn't defined, but it's in the specification. It might
be worth adding that. AFMT_U16_NE isn't even in the spec.
-- 
Stuart Brady


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On Mon, Feb 23, 2004 at 09:16:16AM +0100, Joel Soete wrote:
> In fact according <http://www.seagate.com/cgi-bin/view.cgi?/scsi/st336704.lw>
> it has the two possiblity SE or LVD according HW config (a side jumper J2
> if i well understand)

Ah ok. They have a jumper to force SE signalling. 

> >If both internal devices are LVD, check early sym2 dmesg output
> >to verify the SCSI bus is operating in LVD mode (vs SE).
> 
> But here they seems to work together in LVD mode:

Right. means the jumper is not connected and something else is wrong.

> Anyway what sym2 look for at scsi id 0?

It's just the first one.
SCSI scans from ID 0 to 15 to find devices.

grant


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On Tue, Feb 24, 2004 at 02:39:50PM -0700, Grant Grundler wrote:
> Modified files:
> 	arch/parisc/configs: c3000_defconfig 

FYI, my c3k is running this kernel.
This is an FTP/HTTP server that also doubles as my 1600x1200 desktop.
I won't bother uploading a tarball since the next commit will
force the auto-builder to build it.

grant


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----7681214270446875
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Subject: [parisc-linux] C3000 and Promise Ultra100 TX2 PCI Controller
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Hi,

It's me again ;)
As so often, I try to get a IDE hard disk working on Linux/PA-RISC.

My last attempts failed (using a no-name IDE controller based on the
Silicon Image Si-680 chipset).

It occurs to me that the driver has some big endian issues (and probably
some other issues aswell). I've given up hope to get it working after
I didn't receive any replies from the maintainer, linux-ide or even lkml.


Now I stumbled across several messages (on the parisc-linux mailing list)
of users who want to get Promise IDE controllers working in Linux/PA-RISC.
Since this type of IDE controller is obviously much more popular, and
since it appears to work on PPC, I thought it is "promising" to try it ;)

NB.:
I'm still using the same Seagate ST312022A hard disk (20GB IDE Ultra100)
It works fine under 2.4 and the onboard IDE of the C3k, but only at
about 3MB/s, since DMA is not working.
I still haven't gotten any success with the 2.6 kernel to work with the
onboard IDE controller (tried with and without DMA support).


First of all, I have the same symptoms on both 2.4.25-pa0 and 2.6.3-pa2:

- I get LOTS of "hda: lost interrupt messages"

- trying to access the hda is slow or hangs the process trying to access
  the IDE hard disk (and results in issuing the above mentioned messages)

- the hard disk is eventually detected correctly on boot up
  (but it takes long time - minutes - and many "hda: lost interrupt" messages)

- fdisk shows the correct information about the partitions

- using "ide=nodma", "hda=nodma" and "nodma" as kernel options doesn't
  make any difference.


So far it seems that the driver is 'somewhat' working, but it has
some kind of 'interrupt conflict', ie. it has the typical symptoms of it
(and of course the warning messages indicate that aswell).

Looking at the lkml and googling around suggested it might be related with
DMA not working, therefore I tried to disable it; no difference.
Other than that I didn't find any other clues.



BTW, linux-2.6.3-pa2 tells

---
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PDC20268: IDE controller at PCI slot 0000:03:02.0
PDC20268: chipset revision 2
PDC20268: ROM enabled at 0xf7004000
PDC20268: 100% native mode on irq 192
    ide0: BM-DMA at 0x3c000-0x3c007, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0x3c008-0x3c00f, BIOS settings: hdc:pio, hdd:pio
hda: ST3120022A, ATA DISK drive
---

whereas linux-2.4.25-pa0 said instead

"PDC20268: not 100% native mode: will probe irqs later"

(but the rest is basically the same)


One very interesting thing is that the "hda: lost interrupt" messages
also appeared when I tried the siimage IDE controller on 2.4 kernels!
(see http://www.cs.ucc.ie/~xam/siimage/bootlog-2.4.23-pa3.txt)
Perhaps the siimage problem might be related to this problem?

Any suggestions what could be the problem or how to debug it any further?


Thanks,
  Max


PS: 2.6.3-pa2 boot log can be found here:
http://www.cs.ucc.ie/~xam/promise/bootlog-2.6.3-pa2


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On Iau, 2004-02-26 at 00:52, M. Grabert wrote:
> It occurs to me that the driver has some big endian issues (and probably
> some other issues aswell). I've given up hope to get it working after
> I didn't receive any replies from the maintainer, linux-ide or even lkml.

Well as the older maintainer I certainly didnt get anything. The core 
code is known to be good for 64bit and also big endian, the mmio IDE
code is a little less tested so you could try running the 680 in I/O
mapped mode as a first guess. Otherwise it should be clean.

> - I get LOTS of "hda: lost interrupt messages"
> 
> - trying to access the hda is slow or hangs the process trying to access
>   the IDE hard disk (and results in issuing the above mentioned messages)
> 
> - the hard disk is eventually detected correctly on boot up
>   (but it takes long time - minutes - and many "hda: lost interrupt" messages)
> 
> - fdisk shows the correct information about the partitions
> 
> - using "ide=nodma", "hda=nodma" and "nodma" as kernel options doesn't
>   make any difference.

Your IRQ routing is probably wrong. However this is a gotcha with
promise controllers. Some of them require the x86 boot firmware is run
before they operate.

> One very interesting thing is that the "hda: lost interrupt" messages
> also appeared when I tried the siimage IDE controller on 2.4 kernels!
> (see http://www.cs.ucc.ie/~xam/siimage/bootlog-2.4.23-pa3.txt)
> Perhaps the siimage problem might be related to this problem?
> 
> Any suggestions what could be the problem or how to debug it any further?

First stop sounds like figuring out what IRQ routing is being used. In
particular you need to know how legacy mode interrupt mapping is done on
your system and whether it is even wired that way. If its using native
mode you then need to work out why your IRQ is not appearing (or which
IRQ is actually correct).

(IDE chips have two modes - some more but the basic ones are

legacy mode: decodes the traditional PC IDE I/O ports, uses ISA IRQs
which can be fun since motherboard IDE may point them anywhere or not
wire them.

native mode: Uses PCI irq signalling and addressing. Used for plug in
cards but doesn't always work on motherboard devices.
)




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Subject: Re: [parisc-linux] C3000 and Promise Ultra100 TX2 PCI Controller
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On Thu, 26 Feb 2004, Alan Cox wrote:

> On Iau, 2004-02-26 at 00:52, M. Grabert wrote:
> > It occurs to me that the driver has some big endian issues (and probably
> > some other issues aswell). I've given up hope to get it working after
> > I didn't receive any replies from the maintainer, linux-ide or even lkml.
>
> Well as the older maintainer I certainly didnt get anything.

<nickpick>
Well, actually you did ...

http://lists.parisc-linux.org/pipermail/parisc-linux/2003-December/021842.html

... and you were very helpful.

But you were not the maintainer I was refering to. I meant the one
you suggested in the mail mentioned above:

---
Date: Mon, 8 Dec 2003 23:47:13 +0000 (GMT)
From: M. Grabert <xam@cs.ucc.ie>
To: B.Zolnierkiewicz@elka.pw.edu.pl
Cc: linux-ide@vger.kernel.org
Subject: siimage problems on Linux/PA-RISC
---

As I said, I also sent a mail to linux kernel mailing list:
http://www.ussg.iu.edu/hypermail/linux/kernel/0402.2/0011.html

</nickpick>


> The core
> code is known to be good for 64bit and also big endian, the mmio IDE
> code is a little less tested so you could try running the 680 in I/O
> mapped mode as a first guess. Otherwise it should be clean.

I last time I tried was with the 2.4.24-pa0 kernel and with 2.6.3-rc2.

Both show the output
   hda: TS130220A2, ATA DISK drive
instead of
   hda: ST3120022A, ATA DISK drive

That's why I thought it would be related to a big-endian problem.


> Your IRQ routing is probably wrong. However this is a gotcha with
> promise controllers. Some of them require the x86 boot firmware is run
> before they operate.

Yes, that's the case for the FastTrak RAID controllers (and some others).
I found the
  "Special FastTrak feature" option that allows you to detect
the hard drives without the help from the BIOS (AFAIK).

I digged around in the 2.4.25-pa0 kernel sources obviously the option
doesn't apply to the Promise Ultra100 TX2 controllers (no #ifdefs).

And since I've seens reports that some got it working on Linux/PPC
without patching, I think you don't need the ix86 firmware to operate
this particular controller.


> > One very interesting thing is that the "hda: lost interrupt" messages
> > also appeared when I tried the siimage IDE controller on 2.4 kernels!
> > (see http://www.cs.ucc.ie/~xam/siimage/bootlog-2.4.23-pa3.txt)
> > Perhaps the siimage problem might be related to this problem?
> >
> > Any suggestions what could be the problem or how to debug it any further?
>
> First stop sounds like figuring out what IRQ routing is being used. In
> particular you need to know how legacy mode interrupt mapping is done on
> your system and whether it is even wired that way. If its using native
> mode you then need to work out why your IRQ is not appearing (or which
> IRQ is actually correct).

I've put the output of "lspci -vvv", /proc/interrupts and /proc/ioports
here: http://www.cs.ucc.ie/~xam/promise/


> (IDE chips have two modes - some more but the basic ones are
>
> legacy mode: decodes the traditional PC IDE I/O ports, uses ISA IRQs
> which can be fun since motherboard IDE may point them anywhere or not
> wire them.
>
> native mode: Uses PCI irq signalling and addressing. Used for plug in
> cards but doesn't always work on motherboard devices.
> )

I suppose the output I see with 2.6.3-pa2

"PDC20268: ROM enabled at 0xf7004000"
"PDC20268: 100% native mode on irq 192"
"ide0 at 0x3c400-0x3c407,0x3c302 on irq 192"

and the fact, that I can see the partition correctly with fdisk
(albeit very slow) seem to indicate that it is in native mode
rather than legacy mode?

BTW, the controller supports PCI33 and PCI66. I've tried both
(always the same problems), and currently it is in the PCI66 slot.


Thanks alot for the fast reply,
 greetings from Ireland,
   Max

PS: still awake at this time?


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On Thu, Feb 26, 2004 at 05:24:45AM +0000, M. Grabert wrote:
> Maybe I took out too many lines when I responded to my Alan's reply;
> The first part of the mail describes a problem with the siimage driver
> (big-endian problem), the rest of the mail is also about the Promise IDE
> controller I'm currently trying to get working.

ah ok. that makes sense. I probably just read your mail too fast.

> Both the Silicon Image and the Promise IDE controller show the
> "hda: lost interrupt" symptom. However the Promise driver seems to
> me more 'usable' or easily fixable than the siimage driver, since
> it detects the controller and hard disk correctly!

yes - the endian issue is probably harder to fix.

If the Promise interrupt is being delivered on a different interrupt line
than the one advertised (INTERRUPT_PIN), then dumping the state
of the IOSAPIC should show which IRQ input is "high" and we can
figure out where the disconnect is.

But I'm skeptical that's really the issue. I suspect more the IDE command
isn't being programmed properly into the Promise controller and thus it
doesn't DMA correctly or for some other reason complete the command.
ie it has no reason to interrupt.

> The Promise Ultra100 TX2 controller is reported to work on PPC - not the
> siimage one - so there is probably no difference between the PARISC and
> PPC ports in this respect.

ok

grant

> 
> Greetings,
>   Max


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Hello!

This is my first message on this list. If  need some kind of registration, 
please let me know.

I run a HP PA-RISC B132L+ with Debian Woody as a DSL Gateway/Firwall for our 
home network. Right now we have the kernel 2.4.25-pa0 running. The kernel is 
compiled from sources by gcc 3.0.4. The system runs fine.

Now I tried to compile kernel 2.6.2-pa0 and 2.6.3-pa2 with the same result: 
the compile fails with this message:

--   CC      drivers/char/tty_io.o
In file included from include/linux/selection.h:11,
                 from drivers/char/tty_io.c:101:
include/linux/vt_buffer.h:19:21: asm/vga.h: No such file or directory
make[2]: *** [drivers/char/tty_io.o] Error 1
make[1]: *** [drivers/char] Error 2
make: *** [drivers] Error 2

There is indeed no file include/asm/vga.h. But if I understand the 
documentation right, I need to include VGA support. Can you please tell me 
where I am wrong? These are my console settings in .config:

CONFIG_VGA_CONSOLE=y
# CONFIG_MDA_CONSOLE is not set
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_PCI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y


Eggert Ehmke
mailto:eggert.ehmke@berlin.de

receive my pgp public key from: blackhole.pca.dfn.de
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> There is indeed no file include/asm/vga.h. But if I understand the 
> documentation right, I need to include VGA support. Can you please tell me 
> where I am wrong? These are my console settings in .config:

no, you don't want VGA console. STI console (and possibly serial
console) is the one you want.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Fri, 27 Feb 2004, Eggert Ehmke wrote:

> Hello!
>
> This is my first message on this list. If  need some kind of registration,
> please let me know.

Registration is not required, but I maybe you like to register your
here:

http://hwdb.parisc-linux.org/view.php3?type=machine&name=B132L%2B

> Now I tried to compile kernel 2.6.2-pa0 and 2.6.3-pa2 with the same result:
> the compile fails with this message:
>
> --   CC      drivers/char/tty_io.o
> In file included from include/linux/selection.h:11,
>                  from drivers/char/tty_io.c:101:
> include/linux/vt_buffer.h:19:21: asm/vga.h: No such file or directory
> make[2]: *** [drivers/char/tty_io.o] Error 1
> make[1]: *** [drivers/char] Error 2
> make: *** [drivers] Error 2
>
> There is indeed no file include/asm/vga.h. But if I understand the
> documentation right, I need to include VGA support. Can you please tell me
> where I am wrong? These are my console settings in .config:
>
> CONFIG_VGA_CONSOLE=y

I think this is the culprit. There is not VGA support on Linux/PA-RISC.

> # CONFIG_MDA_CONSOLE is not set
> CONFIG_STI_CONSOLE=y
> CONFIG_DUMMY_CONSOLE_COLUMNS=160
> CONFIG_DUMMY_CONSOLE_ROWS=64
> CONFIG_DUMMY_CONSOLE=y
> CONFIG_FRAMEBUFFER_CONSOLE=y
> CONFIG_PCI_CONSOLE=y
> # CONFIG_FONTS is not set
> CONFIG_FONT_8x8=y
> CONFIG_FONT_8x16=y

Greetings,
  Max



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On Iau, 2004-02-26 at 15:56, Grant Grundler wrote:
> yes - the endian issue is probably harder to fix.

All mmio and pio goes through helper functions, so it suggests the
helper ifdefs are simply wrong in ide-iops.c - which should make fixing
stuff easier - probably the insw() op is the problem.

> But I'm skeptical that's really the issue. I suspect more the IDE command
> isn't being programmed properly into the Promise controller and thus it
> doesn't DMA correctly or for some other reason complete the command.
> ie it has no reason to interrupt.

Well if the endian stuff is broken then anything could happen

> > The Promise Ultra100 TX2 controller is reported to work on PPC - not the
> > siimage one - so there is probably no difference between the PARISC and
> > PPC ports in this respect.
> 
> ok

siimage should, at least from data sheet review 



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On Fri, Feb 27, 2004 at 06:44:20PM +0000, Alan Cox wrote:
> On Iau, 2004-02-26 at 15:56, Grant Grundler wrote:
> > yes - the endian issue is probably harder to fix.
> 
> All mmio and pio goes through helper functions, so it suggests the
> helper ifdefs are simply wrong in ide-iops.c - which should make fixing
> stuff easier - probably the insw() op is the problem.

Correct. parisc insw/insl/outsw/outsl are all broken.
They all have cpu_to_leXX (or leXX_to_cpu()) calls and the
basic inw/outw are already taking care of the byte swap.
This has been mostly my fault since I originally didn't
know how the byte swapping was supposed to be
handled for a big endian arch.

Anyone interested in deleted all use of the cpu_to_leXX
and leXX_to_cpu in linux-2.6/arch/parisc/lib/io.c?

please post the tested patch here. I'll review and assign
bla^H^H^Hglory to the submitter when I commit it.

BTW, linux-2.4 has the same issue.
I expect the same patch will apply to both if it's
easier to test with linux-2.4.

thanks,
grant


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On Fri, Feb 27, 2004 at 10:22:22AM +0000, M. Grabert wrote:
> > CONFIG_VGA_CONSOLE=y
> 
> I think this is the culprit. There is not VGA support on Linux/PA-RISC.

This is the culprit, and I stumble across it all the time. How do we go
about setting this to CONFIG_VGA_CONSOLE=n as the default? 

c.



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On Fri, Feb 27, 2004 at 05:49:26PM -0500, Carlos O'Donell wrote:
> On Fri, Feb 27, 2004 at 10:22:22AM +0000, M. Grabert wrote:
> > > CONFIG_VGA_CONSOLE=y
> > 
> > I think this is the culprit. There is not VGA support on Linux/PA-RISC.
> 
> This is the culprit, and I stumble across it all the time. How do we go
> about setting this to CONFIG_VGA_CONSOLE=n as the default? 

Done.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Fri, 27 Feb 2004, Grant Grundler wrote:

> Anyone interested in deleted all use of the cpu_to_leXX
> and leXX_to_cpu in linux-2.6/arch/parisc/lib/io.c?

What do I have to do?

I assumed that I just have to remove the use of the functions, nothing else.
I've created a modified io.c for 2.4 and for 2.6 (can be found here:
http://www.cs.ucc.ie/~xam/io/ ). I used a CVS version updated a couple
of minutes ago, just after the merge with 2.6.4-rc1.

Was easy to do ... but I haven't tried to compile or run a kernel with the
modifications.

I'll test the the modifications tomorrow morning (in about 10 hours that is),
and will post the results. If successful, I'll also create the neccessary patches.
(btw, is there a special way how I should make the patches?)

> please post the tested patch here. I'll review and assign
> bla^H^H^Hglory to the submitter when I commit it.

;)

> BTW, linux-2.4 has the same issue.
> I expect the same patch will apply to both if it's
> easier to test with linux-2.4.

I'll try with both 2.4.25-pa0 and 2.6.4-rc1-paX and the Promise IDE
controller. Maybe these changes make also DMA work for the internal IDE
of the C3000.

 Max


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To: Grant Grundler <grundler@parisc-linux.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:20945

On Fri, 27 Feb 2004, M. Grabert wrote:

> On Fri, 27 Feb 2004, Grant Grundler wrote:
>
> > Anyone interested in deleted all use of the cpu_to_leXX
> > and leXX_to_cpu in linux-2.6/arch/parisc/lib/io.c?
>
> What do I have to do?
>
> I assumed that I just have to remove the use of the functions, nothing else.
> I've created a modified io.c for 2.4 and for 2.6 (can be found here:
> http://www.cs.ucc.ie/~xam/io/ ). I used a CVS version updated a couple
> of minutes ago, just after the merge with 2.6.4-rc1.

[...]

> I'll test the the modifications tomorrow morning (in about 10 hours that is),

Well, I actually couldn't resist and tried the modifications on a
linux-2.4.25-pa0 kernel (with a hard drive attached to onboard IDE
controller of the C3000).

The 'vanilla' linux-2.4.25-pa0 works, but without DMA.
With the modifications I made, the onboard IDE shows similar big-endian
problems as when using the siimage driver with a unpatched kernel (actually what I
somehow expected).

It really looks as either the Promise and the onboard-IDE have big-endian
issues (which were revealed by these modifications), or the siimage driver
has a big-endian problem.

I will test the Promise card (perhaps even the Silicon Image card), and
the 2.6-kernel tomorrow.

BTW, all my other additional hardware seem to work correctly (second
ethernet network card, a wireless network card, 5-port USB2.0 card).


Thanks,
Greetings from Ireland,
   Max


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To: Carlos O'Donell <carlos@baldric.uwo.ca>
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On Fri, Feb 27, 2004 at 05:49:26PM -0500, Carlos O'Donell wrote:
> This is the culprit, and I stumble across it all the time. How do we go
> about setting this to CONFIG_VGA_CONSOLE=n as the default? 


change drivers/video/console/Kconfig:
config VGA_CONSOLE
        bool "VGA text console" if EMBEDDED || !X86
        depends on !ARCH_ACORN && !ARCH_EBSA110 && !4xx && !8xx && !SPARC32 && !SPARC64 && !M68K
        default y
...

I'm not sure why, but is arch/parisc/defconfig being ignored?
It seems to disable VGA_CONSOLE by default as do all the
sample configs in arch/parisc/configs/*.

grant


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On Fri, Feb 27, 2004 at 11:50:20PM +0000, M. Grabert wrote:
> I've created a modified io.c for 2.4 and for 2.6 (can be found here:
> http://www.cs.ucc.ie/~xam/io/ ). I used a CVS version updated a couple
> of minutes ago, just after the merge with 2.6.4-rc1.

Erm, sorry, I misled you.  I started the merge, went out for dinner,
came back and finished it off.  Should be good now.

There's typically two messages to the -cvs list (plus all the directory
add mails ...), the first is adding Linus' new tree on a branch, then
the second (which should be in your mailbox by now) is the merge back
to mainline.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Sad, 2004-02-28 at 01:05, M. Grabert wrote:
> It really looks as either the Promise and the onboard-IDE have big-endian
> issues (which were revealed by these modifications), or the siimage driver
> has a big-endian problem.

None of the drivers have big endian problems (tested on other archs)

> I will test the Promise card (perhaps even the Silicon Image card), and
> the 2.6-kernel tomorrow.

The SI goes via mmio promise via PIO, so it may be you unfixed the one
that was right ?




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On Sat, Feb 28, 2004 at 04:07:13PM +0000, Alan Cox wrote:
> The SI goes via mmio promise via PIO, so it may be you unfixed the one
> that was right ?

oic.  siimage.c doesn't use the same code path.
I'll guess promise needs the arch/parisc/lib/io.c patch anyway
and something else is wrong with siimage. I'll track that
down later - could be something similar...

drivers/ide/pci/siimage.c:  default_hwif_mmiops(hwif);

ide-iops.c:void default_hwif_mmiops (ide_hwif_t *hwif)
...
        hwif->INSW      = ide_mm_insw;

include/asm-parisc/ide.h:
static __inline__ void __ide_mm_insw(unsigned long port, void *addr, u32 count)
{
        while (count--) {
                *(u16 *)addr = readw(port);
                addr += 2;
        }
}

include/asm/io.h:#define readw(addr) (*(volatile unsigned short *) __io_virt(addr))


Uhoh..no swapping at all in this case.
I was expecting readw to swap bytes.
Am I just confused again about how a BE is supposed to behave?
*sigh*

grant


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On Sat, 2004-02-28 at 10:45, Grant Grundler wrote:
> include/asm/io.h:#define readw(addr) (*(volatile unsigned short *) __io_virt(addr))
> 
> 
> Uhoh..no swapping at all in this case.
> I was expecting readw to swap bytes.
> Am I just confused again about how a BE is supposed to behave?
> *sigh*

The rule is supposed to be that inX/outX/readX/writeX be free of
endianness issues on the bus.  i.e. doing a readw() on a memory mapped
PCI config space on parisc should have a le16_to_cpu implied in the
readw().

Obviously, accesses which go straight to memory (i.e. not via accessor
macros) are the responsibility of the driver for sorting out the
endianness.

James






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On Sat, Feb 28, 2004 at 09:45:06AM -0700, Grant Grundler wrote:
> include/asm/io.h:#define readw(addr) (*(volatile unsigned short *) __io_virt(addr))
> 
> 
> Uhoh..no swapping at all in this case.
> I was expecting readw to swap bytes.
> Am I just confused again about how a BE is supposed to behave?
> *sigh*

You're confused by looking at the unused definition ;-)

#define readw(addr) le16_to_cpu(__raw_readw(addr))

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Sat, Feb 28, 2004 at 05:41:49PM +0000, Matthew Wilcox wrote:
> > Uhoh..no swapping at all in this case.
> > I was expecting readw to swap bytes.
> > Am I just confused again about how a BE is supposed to behave?
> > *sigh*
> 
> You're confused by looking at the unused definition ;-)

Worse - I was confused by looking at linux-2.6/asm/io.h my laptop. :^(
/me hides

> #define readw(addr) le16_to_cpu(__raw_readw(addr))

yes - so I went on a very short goose chase.
ide_insw_mm stuff should be fine too.

thanks,
grant


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-------------------------------1078001692
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit

Gentlepersons:
I recently purchased the "Woody" version of debian Linux for my 715-75 
PA-RISC box.  However, none of the six CDs seems to be able to boot the 715-75.  I 
am planning to make an install CD.  Please tell me what files should be on the 
CD that I will create.

Thanks in advance
jack dunn

PS I have reset the CD to use 512 blocks not 2096

-------------------------------1078001692
Content-Type: text/html; charset="US-ASCII"
Content-Transfer-Encoding: quoted-printable

<HTML><HEAD>
<META charset=3DUS-ASCII http-equiv=3DContent-Type content=3D"text/html; cha=
rset=3DUS-ASCII">
<META content=3D"MSHTML 6.00.2800.1106" name=3DGENERATOR></HEAD>
<BODY style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial; BACKGROUND-COLOR: #fffff=
f">
<DIV>Gentlepersons:</DIV>
<DIV>I recently purchased the "Woody" version of debian Linux for my 715-75=20=
PA-RISC box.&nbsp; However, none of the six CDs seems to be able to boot the=
 715-75.&nbsp; I am planning to make an install CD.&nbsp; Please tell me wha=
t files should be on the CD that I will create.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Thanks in advance</DIV>
<DIV>jack dunn</DIV>
<DIV>&nbsp;</DIV>
<DIV>PS I have reset the CD to use 512 blocks not 2096</DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

-------------------------------1078001692--


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James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/02/28 14:24:07
> 
> Modified files:
> 	.              : Makefile 
> 
> Log message:
> Compiles, boots and stands the BK torture test on my C360, so -pa1
> 
Hey interesting, I mean 'torture test'. Where can I get more detail on this stuff to test on the N4K also?

Thanks in advance for help,
	Joel


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On Sat, 2004-02-28 at 16:21, Joel Soete wrote:
> Hey interesting, I mean 'torture test'. Where can I get more detail on this stuff to test on the N4K also?

It just means running bk doing a tree merge, checking out the results
and compiling the kernel.  It seems to sow up most types of problems ...

James




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James Bottomley wrote:
> On Sat, 2004-02-28 at 16:21, Joel Soete wrote:
> 
>>Hey interesting, I mean 'torture test'. Where can I get more detail on this stuff to test on the N4K also?
> 
> 
> It just means running bk doing a tree merge, checking out the results
> and compiling the kernel.  It seems to sow up most types of problems ...
> 
> James
> 
> 
> 
Ah ok , it just sound like some gcc test :) , that is why I though there was bourned a new test for our kernel.

Thanks for feedback,
	Joel

PS: I will so prepare such boot kernel for the N ;)


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------=_NextPart_000_0014_00002B14.00006041--




From - Thu Nov 08 21:31:05 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: "Martin K. Petersen" <mkp@mkp.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Maybe OT: Login problem
Date: 01 Mar 2004 12:45:08 -0500
Organization: mkp.net
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Cc: parisc-linux@lists.parisc-linux.org
To: "Oliver Fuhrer" <oliver.fuhrer@bluewin.ch>
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>>>>> "Oliver" == Oliver Fuhrer <oliver.fuhrer@bluewin.ch> writes:

Oliver> I'm having trouble to log in to my apollo 9000/705 workstation
Oliver> with debian 3. every time i log in, i have to change my
Oliver> password. No matter if i log in as root or as user.  I'v
Oliver> already reinstalled debian, but this problem persists.

Sounds like your system time is off.  Most likely your onboard battery
is dead.

Not sure whether replacements for 705 are easy to come by.  But if you
set the time at the PDC prompt before installing Debian, things should
work out better for you.

-- 
Martin K. Petersen      http://mkp.net/



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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] glibc-2.3.3: a warning with gcc-3.3 become an error
	with gcc-3.5
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Hi all,

As the title mail said, the following warning with gcc-3.3:
../sysdeps/hppa/fpu/feupdateenv.c: In function `feupdateenv':
../sysdeps/hppa/fpu/feupdateenv.c:31: warning: assignment of read-only member
`__status_word'

become an error with gcc-3.5:
../sysdeps/hppa/fpu/feupdateenv.c: In function `feupdateenv':
../sysdeps/hppa/fpu/feupdateenv.c:31: error: assignment of read-only member
`__status_word'
make[2]: *** [/Develop/parisc-linux/build/glibc/math/feupdateenv.o] Error
1
make[2]: Leaving directory `/Develop/parisc-linux/sources/glibc-2.3.3-20040301/math'
make[1]: *** [math/others] Error 2
make[1]: Leaving directory `/Develop/parisc-linux/sources/glibc-2.3.3-20040301'
make: *** [all] Error 2

And regarding the definition of feupdateenv():
int
feupdateenv (const fenv_t *envp)
[snip]

I couldn't blame gcc.

So I would suggest to use sysdeps/mips/fpu/feupdateenv.c as model:
int
feupdateenv (const fenv_t *envp)
{
  int temp;

  /* Save current exceptions.  */
  _FPU_GETCW (temp);
  temp &= FE_ALL_EXCEPT;

  /* Install new environment.  */
  fesetenv (envp);

  /* Raise the safed exception.  Incidently for us the implementation
     defined format of the values in objects of type fexcept_t is the
     same as the ones specified using the FE_* constants.  */
  feraiseexcept (temp);

  /* Success.  */
  return 0;
}

but replacing:
 * 'int temp;' by 'fenv_t *temp;'
 * '_FPU_GETCW (temp);' by 'fegetenv(temp);' (as we don't have _FPU_GETCW()
)

But not sure it's the best solution.

Thanks in advance for all advise,
    Joel


----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
http://reg.tiscali.be/default.asp?lg=fr





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Subject: Re: [parisc-linux] glibc-2.3.3: a warning with gcc-3.3 become an
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On Mon, Mar 01, 2004 at 07:43:01PM +0100, Joel Soete wrote:
> But not sure it's the best solution.
> Thanks in advance for all advise,

Show me a patch.

c.


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From: Wichert Akkerman <wichert@wiggy.net>
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Subject: [parisc-linux] stuck 2.6.3-pa2 kernel on 9000/a500
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I just noticed that nessler.debian.org hung. Complete serial console
logs and ser pim output are attached.

Kernel is 2.6.3-pa2 compiled using gcc 3.0.4 taken from ftp.p-a.o.

Wichert.


-- 
Wichert Akkerman <wichert@wiggy.net>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.


--C7zPtVaVf+AK4Oqc
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sym3: SCSI BUS reset detected.
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sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
eth0: MII status 780d, Link partner report 0000.

 eth0 csr12 c6  not lnc!!
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.

Stack Dump:
 0000000039e1d578:  0000000039e1d578 00000000102f1774 0000000010448e80 0000000010448e80
 0000000039e1d558:  0000000010448e80 0000000000001896 0000000010448e80 000000008d7a64c0
 0000000039e1d538:  0000000000000002 0000000000000000 0000000010448e80 0000000000001000
 0000000039e1d518:  00000000000a340e 0000000000000000 0000000000000002 0000000000000000
 0000000039e1d4f8:  0000000000000080 0000000039e1d000 0000000000000000 0000000010448e80
 0000000039e1d4d8:  000000000000000f 0000003f0804ff17 3f8020c500000000 000000000800000e
 0000000039e1d4b8:  0000000010448e80 000000001010df64 0000000000000004 0000000039e1d2c0
 0000000039e1d498:  0000000010448e80 0000000010448e80 000000003372c100 00000000104e1218
 0000000039e1d478:  0000000010448e80 00000000000f4000 0000000020515440 0000000048019c78
 0000000039e1d458:  0000000010448e80 0000000000000000 ffffffffffffffff ffffffffffffffff
 0000000039e1d438:  4000c678c1c43248 000000001023c8ec 0000000000000001 0000000039e1d2c0
 0000000039e1d418:  0000000010448e80 0000000010448e80 0000000000000063 0000000000000000
 0000000039e1d3f8:  0000000010448e80 0000000010448e80 0000000000030104 0000000000000000
 0000000039e1d3d8:  0000000010448e80 0000000000000054 00000000132d8000 0000000010448e80
 0000000039e1d3b8:  000000000800000e 0000000010139498 000000008d7a64c0 0000000010448e80
 0000000039e1d398:  0000000010448e80 0000000000001a94 0000000010448e80 0000000000000000
 0000000039e1d378:  0000000000000002 0000000000000000 0000000000000000 0000000000000010
 0000000039e1d358:  0000000000000000 0000000010448e80 000000001328e000 0000000000000000
 0000000039e1d338:  000000008ecc5b20 0000000010109094 000000008281bec0 00000000133277c0
 0000000039e1d318:  0000000000000082 0000000010448e80 000000003372c100 000000001039488c
 0000000039e1d2 0000000000000001 0000000000000000 0000000010448e80 0000000039e1cb80
 0000000039e1d2d8:  0000000000000002 0000000039e1c690 0000000000000002 0000000000000000
 0000000039e1d2b8:  00000000104049d8 0000000010149ef0 0000000010404a10 0000003f0804ff17
 0000000039e1d298:  0000000000000000 000000000eb010d4 000000000000003a 00000000104e1218
 0000000039e1d278:  0000000010448e80 00000000000f4000 00000000000000d2 0000000039e1d100
 0000000039e1d258:  000000001015fae0 000000001015fadc 0000000000000000 0000000000000000
 0000000039e1d238:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 0000000039e1d218:  0000000000000c80 0000000000000000 0000000000000c80 0000000000000c80
 0000000039e1d1f8:  0000000000000003 000000001013f30c 00000000f000028c 0000000000000802
 0000000039e1d1d8:  4014000000000000 401c000000000000 0000000200000000 0000000400000004
 0000000039e1d1b8: 0000000000000 0000000000000000 000000001328b000 0000000000000002
 0000000039e1d198:  0000000013057a80 0000000000000002 ffffffffffffffff ffffffffffffffff
 0000000039e1d178:  ffffffffffffffff 00000000101a2440 ffffffffffffffff ffffffffffffffff
 0000000039e1d158:  ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff
 0000000039e1d138:  4000c678c1c43248 00000000000003e8 00000064aaaaaaab 0000000000000000
 0000000039e1d118:  0000000000000000 0000000000000000 0000000000000000 0c3ff80000000000
 0000000039e1d0f8:  000000000000e680 0000000039e1d000 0000000039e1cff0 0000003f0804ff0f
 0000000039e1d0d8:  0000000010448e80 000000008e0ca0c0 0000000000030104 0000000000001000
 0000000039e1d0b8:  000000000000003f 00000000fffffffa 0000003f0804ff0f 0000000000000000
 0000000039e1d098:  000000000800000f 0000000039e1c3f0 000000001042c820 000000003fa38af8
 0000000039e1d078:  000000000800 0000000039e1c610 000000008f7553c0 0000000039e1ca10
 0000000039e1d058:  0000000000030104 0000000000000000 000000003fa38af8 000000003fa38af8
 0000000039e1d038:  0000000000000000 0000000000030104 0000000010448e80 0000000010448e80
 0000000039e1d018:  0000000000000000 000000001015facc 00000000104fc0a0 000000ff0804ff0e
 0000000039e1cff8:  0000000010448e80 00000000101388b0 0000000000000000 8000000000000000
 0000000039e1cfd8:  0000000010448e80 0000000039e1cb80 ffffffff00000000 0000000010448e80
 0000000039e1cfb8:  0000000018ed5bd8 000000001010f2f8 00107fc062c693c0 0000000000000002
 0000000039e1cf98:  0000000000000000 0000000010448e80 0000000039e1c980 0000000000000000
 0000000039e1cf78:  0000000000000002 000000001018b2e8 0000000000000000 0000000010448e80
 0000000039e1cf58:  0000000000000001 0000000000000029 0000000010448e80 0000000000000000
 0000000039e1cf38:  00000000000f 0000000010448e80 00000000104f5b98 0000000000000000
 0000000039e1cf18:  00000000104f5b98 0000000010448e80 000000000800000e 0000000039e1ce80
 0000000039e1cef8:  000000008e56d000 000000001013a184 0000000000000005 000000008e56d000
 0000000039e1ced8:  0000000010448e80 0000000000000006 0000000010448e80 00000000000179c9
 0000000039e1ceb8:  0000000000000006 0000000000000000 0000000010448e80 000000008fffc940
 0000000039e1ce98:  0000000000030104 0000000000001000 0000000000000002 000000008e7dc690
 0000000039e1ce78:  0000000000000001 000000001018d0cc 0000000010448e80 0000000039e1c700
 0000000039e1ce58:  0000000000000002 0000000000595054 ffffffff80000000 0000000000000000
 0000000039e1ce38:  0000000000000000 0000000010149ef0 0000000000000040 0000000000000006
 0000000039e1ce18:  0000000039e1cd00 0000000000000000 0000000000002009 0000000000000000
 0000000039e1cdf8:  000000000002 00000000101dc7a0 0000000000000000 0000000039e1c700
 0000000039e1cdd8:  000000001023d244 000000001023d240 0000000000000000 0000000000000000
 0000000039e1cdb8:  0000000000000000 0000000010448e80 0000000000001000 000000008fffc940
 0000000039e1cd98:  0000000000030104 0000000010448e80 0000000000000c80 0000000000000c80
 0000000039e1cd78:  0000000000000003 000000001018d1c8 00000000f000028c 0000000000000802
 0000000039e1cd58:  4014000000000000 401c000000000000 0000000600000000 0000000000000000
 0000000039e1cd38:  0000000039e1ca10 0000000020132180 0000000000000000 0000000039e1ca10
 0000000039e1cd18:  0000000020132180 0000000000000001 ffffffffffffffff 0000000039e1cc80
 0000000039e1ccf8:  ffffffffffffffff 00000000101dc8a4 ffffffffffffffff ffffffffffffffff
 0000000039e1ccd8:  ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff
 0000000039e1ccb8:  4000c678c1c43240000000000003e8 000000008fff9d40 0000000010448e80
 0000000039e1cc98:  0000000010448e80 0000000000000000 0000000000000000 0000000010448e80
 0000000039e1cc78:  000000000000e680 0000000010163fec 0000000039e1caf0 0000000000000005
 0000000039e1cc58:  0000000000000000 0000000039e1ca10 0000000020132180 0000000039e1ca10
 0000000039e1cc38:  0000000000000008 0000000010448e80 000000003fa38af8 0000000000000000
 0000000039e1cc18:  0000000000000135 000000008f755428 0000000000000000 0000000000000000
 0000000039e1cbf8:  0000000000000001 00000000101ddb48 0000000000000000 0000000020132180
 0000000039e1cbd8:  000000008e59b000 0000000010448e80 000000003fa38af8 0000000000000008
 0000000039e1cbb8:  0000000000000001 0000000000000135 0000000000000000 0000000000000135
 0000000039e1cb98:  0000000000000002 0000000010448e80 00000000000085c4 00000000400d4b80
 0000000039e1cb78:  00000000faf09c98 0000101ec2d0 0000000000000000 0000000000000001
 0000000039e1cb58:  000000003ccbf000 0000000010448e80 000000003372c448 0000000010448e80
 0000000039e1cb38:  0000000039e1ca10 0000000020132180 000000003fa38af8 0000000000000008
 0000000039e1cb18:  0000000000000001 0000000000000135 0000000020515440 0000000039e1ca00
 0000000039e1caf8:  ffffffffffffffff 00000000101ddc64 ffffffffffffffff ffffffffffffffff
 0000000039e1cad8:  ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff
 0000000039e1cab8:  0000000014b839c0 0000000010448e80 0000000013327180 0000000010448e80
 0000000039e1ca98:  0000000010448e80 0000000000000000 0000000000002171 0c3ff80000000000
 0000000039e1ca78:  0000000010963c80 00000000101e367c 0000000010448e80 00000000104f58f8
 0000000039e1ca58:  0000000000000002 0000000010448e80 0000000020132180 0000000010448e80
 0000000039e1ca38:  0000000000000000 00000fa38af8 00000000132cd400 0000000000000006
 0000000039e1ca18:  0000000000000480 000000003fa38af8 0000000020515440 0000000039e1c910
 0000000039e1c9f8:  0000000000000001 00000000101ddd78 0000000000000000 0000000000000000
 0000000039e1c9d8:  0000000010448e80 0000000010448e80 0000000000001000 0000000011596930
 0000000039e1c9b8:  0000000000000000 0000000000000000 000000003fa38af8 0000000000000001
 0000000039e1c998:  0000000010448e80 000000008e56d000 0000000020132180 00000000251ccdb8
 0000000039e1c978:  0000000000000000 00000000101b4820 0000000048019c78 0000000020515440
 0000000039e1c958:  0000000048019c78 0000000010448e80 0000000010448e80 0000000000000008
 0000000039e1c938:  000000002eafda80 0000000000000001 000000003fa38af8 0000000010448e80
 0000000039e1c918:  000000003fa38b58 0000000000000001 000000008f755428 0000000000000010
 0000000039e1c8f8:  0000000000000000 000000001e50 0000000000000008 0000000000000001
 0000000039e1c8d8:  0000000000000000 0000000000000000 0000000000000135 000000008f755428
 0000000039e1c8b8:  000000002eafda80 0000000039e1c898 0000000039e1c898 0000000039e1c898
 0000000039e1c898:  0000000039e1c898 0000000000000001 ffffffffffffffff 0000000039e1c800
 0000000039e1c878:  ffffffffffffffff 0000000010168b88 ffffffffffffffff 0000000010448e80
 0000000039e1c858:  0000000039e1c690 0000000010448e80 0000000011596930 0000000000000135
 0000000039e1c838:  0000000010448e80 000000003fa38bf0 000000002c576d00 000000004043b40c
 0000000039e1c818:  000000002c576d00 000000004043b40c 0000000000000000 000000008281b8c0
 0000000039e1c7f8:  000000000000a000 00000000101603b4 0000000039e1c6f0 0000000000000000
 0000000039e1c7d8:  0000000039e1c290 0000000010448e80 0000000039e1c590 0000000039e1c5a0
 0000000039e1c7b8:  000000001050ec40 000000000000000000000409c36a0 0000000010448e80
 0000000039e1c798:  0000000000000101 0000000000000000 0000000000000001 000000008f7553c0
 0000000039e1c778:  0000000000000000 0000000000000001 0000000010448e80 0000000039e1c590
 0000000039e1c758:  0000000039e1c3f0 0000000010448e80 00000000409c11f8 00000000409c11f8
 0000000039e1c738:  0000000000001f00 00000000409c11f8 000000000054a0b0 00000000faf0b120
 0000000039e1c718:  0000000000000003 0000000000000001 000000000000001c 000000ff0804ff0f
 0000000039e1c6f8:  0000000010448e80 0000000010160c24 0000000000200200 0000000039e1c500
 0000000039e1c6d8:  0000000010448e80 0000000010448e80 000000003372c100 00000000104e1218
 0000000039e1c6b8:  0000000010448e80 00000000000f4000 0000000000000014 0000000000000001
 0000000039e1c698:  000000003fa38af8 0000000000000000 000000000018d0c0 0000000000000000
 0000000039e1c678:  0000000000000000 000000001023c8ec 000010448e80 0000000039e1c390
 0000000039e1c658:  000000008f7553f8 000000008f7553f8 0000000010448e80 000000000054a0b0
 0000000039e1c638:  00000000409c399c 00000000409c19f8 0000000039e1c290 000000000054b1e5
 0000000039e1c618:  0000000000000ecb 0000000000001135 000000000800000f 0000000039e1c500
 0000000039e1c5f8:  000000001328f480 0000000010160cd0 0000000010448e80 0000000010448e80
 0000000039e1c5d8:  000000001660e000 00000000faf03370 0000000000000801 00000000409c36a0
 0000000039e1c5b8:  00000000000001b6 0000000000000004 0000000010448e80 0000000039e1c390
 0000000039e1c598:  0000000000002000 000000000054a0b0 0000000000000019 000000004959d000

Kernel addresses on the stack:
 [<00000000102f1774>]  [<000000001013f30c>]  [<00000000101a2440>]  [<00000000101388b0>]
 [<000000001018b2e8>]  [<000000001013a184>]  [<000000001018d0cc>]  [<00000000101dc7a0>]
 [<000000001018d1c8>]  [00000101dc8a4>]  [<0000000010163fec>]  [<00000000101ddb48>]
 [<00000000101ec2d0>]  [<00000000101ddc64>]  [<00000000101e367c>]  [<00000000101ddd78>]
 [<00000000101b4820>]  [<00000000101ace50>]  [<0000000010168b88>]  [<00000000101603b4>]
 [<0000000010160c24>]  [<000000001023c8ec>]  [<0000000010160cd0>]  [<0000000010188bac>]
 [<0000000010149ef0>]  [<0000000010188ce8>]  [<000000001010f1d8>]  [<0000000010188ffc>]
 [<000000001010f2f8>]  [<000010109e4c>]  [<0000000010109074>]

Kernel Fault: Code=15 regs=0000000039e1d000 (Addr=0000003f0804ff17)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Not tainted
r00-03  0000000000000000 00000000104fc0a0 000000001015facc 0000000000000000
r04-07  0000000010448e80 0000000010448e80 0000000000030104 0000000000000000
r08-11  000000003fa38af8 000000003fa38af8 0000000000000000 0000000000030104
r12-15  0000000039e1ca10 000000008f7553c0 0000000039e1c610 0000000000000800
r16-19  000000003fa38af8 000000001042c820 0000000039e1c3f0 000000000800000f
r20-23  0000000000000000 0000003f0804ff0f 00000000fffffffa 000000000000003f
r24-27  0000000000001000 0000000000030104 000000008e0ca0c0 0000000010448e80
r28-31  0000003f0804ff0f 0000000039e1cff0 0000000039e1d000 000000000000e680
sr0-3   0000000000000c80 0000000000000c80 0000000000000000 0000000000000c80
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001015fadc 000000001015fae0
 IIR: 0eb010d4    ISR: 0000000000000000  IOR: 0000003f0804ff17
 CPU:        0   CR30: 0000000039e1c000 CR31: 0000000010418000
 ORIG_R28: 00000000000f4<2><2>

--C7zPtVaVf+AK4Oqc
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=pim

PROCESSOR PIM INFORMATION



-----------------  Processor 0 HPMC Information - PDC Version: 40.50  ------

Timestamp =    Mon Feb  23 20:41:58 GMT 2004    (20:04:02:23:20:41:58)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0x0000082000ff6242  0x0000000000000000
       0x1800082011006302  0xcb80800000000000
       0x0000087000ff6292  0x0000000000000000
       0x6000082070006062  0x0000000001100170
       0x7000082070006082  0x0000000000a41c00
       0x2000082374ff6b83  0x0000ff000001ff74
       0x2000082374ff6b83  0x0000ff000001ff74
       0x2000082274ff6bc3  0x0000ff000001ff74
       0x2000082274ff6bc3  0x0000ff000001ff74
       0x0000080080006310  0x0000000000000001
       0x000008008000631f  0x0000000000000000
       0x0000082000ff6442  0x0000000000000000
       0x0000082000ff6402  0x0000000000000000
       0x0000080080006300  0x0000000000000001
       0x7000082382006343  0x0000000000070200
       0x7000082382026343  0x0000000000070200
       0x7000082382046343  0x0000000000070200
       0x7000082382066343  0x0000000000070200
       0x0000080089006200  0x0000000000000000
       0x0000080086006200  0x0000000000000000
       0x000008008000630f  0x0000000000000000


General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000020000  0000000040000000
04-07  0000000000010000  0000000000000002  00000000069db9c0  0000000000000000
08-11  0000000000000000  0000000000000001  000000003fff0000  0000000000000000
12-15  00000000000000f2  00000000000000fa  00000000000000f0  00000000000000ff
16-19  000000f0f00003dc  000000f0f000028c  000000f0f0002aa4  0000000000000001
20-23  0000000000000001  0000000000000007  000000000000ff00  fffffff0f0430f78
24-27  000000003fff0000  0000000000020000  0000000000000000  0000000000065e34
28-31  fffffff0f0408000  0000000000001490  000000003fff0040  000000f0f0044cb0


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  000000000000003f
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000968a477e7  0000000000000000  000000000002005c  000000006bda3f81
20-23  00000000142400ff  00000000fc3f0000  000000ff00008f08  0000000000000000
24-27  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
28-31  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000000020060
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00105004
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0xfffffffffffa0000


Floating Point Registers 0 - 31
00-03  ffd00fbfd72afbff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
04-07  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
08-11  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
12-15  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
16-19  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
20-23  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
24-27  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
28-31  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  fffffaffffffffff


Check Summary                = 0xcb80800000000000
Available Memory             = 0x0000000080000000
CPU Diagnose Register 2      = 0x0300000000000204
CPU Status Register 0        = 0x1440c20000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x301049809b858340
Read Short LOG               = 0xc1af00f0f0408188



-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000010000000  000000001010dc08  0000000010448e80
04-07  0000000039e1d000  000000000000000f  000000001037af74  0000003f0804ff17
08-11  000000003fa38af8  000000003fa38af8  0000000000000000  0000000000030104
12-15  0000000039e1ca10  000000008f7553c0  0000000039e1c610  0000000000000800
16-19  0000000039e1d000  000000001042c820  0000000039e1c3f0  000000001011139c
20-23  00000000f0043c90  0000000010000000  0000000000000001  0000000000000000
24-27  00000000004ded40  0000000000000001  00000000004e1140  0000000010448e80
28-31  fffffffffffffffd  00000000004df4b8  0000000039e1d5c0  0300000000802004


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000032  0000000000000000  00000000000000c0  000000000000003f
12-15  0000000000000000  0000000000000000  0000000000108000  0000000000000000
16-19  00008cdb3f548e7b  0000000000000000  000000001010dc0c  00000000ebffba7d
20-23  0000000000000c80  0000000000000000  00000000082c000f  cc00000000000000
24-27  00000000003de000  00000000115c6000  ffffffffffffffff  00000000400d4b80
28-31  ffffffffffffffff  ffffffffffffffff  0000000039e1c000  0000000010418000

Space Registers 0 - 7
00-03  00000c80          00000c80          00000000          00000c80
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x000000001010dc08
CPU State                    = 0x9e000001



-----------------  Processor 1 HPMC Information - PDC Version: 40.50  ------

Timestamp =    Mon Feb  23 20:41:58 GMT 2004    (20:04:02:23:20:41:58)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0x0000082000ff6242  0x0000000000000000
       0x1800082011016322  0xc381800000000000
       0x0000082000ff6412  0x0000000000000000
       0x0000082000ff6402  0x0000000000000000


General Registers 0 - 31
00-03  0000000000000000  00000009689ea107  0000000000000000  00000000000000f7
04-07  0000000000000875  fffffff0f040a000  0000000000000032  00000000000000f7
08-11  0000000000000000  fffffff0f0400000  00000000000000f6  00000000000000fe
12-15  00000000000000f2  0000000000000001  00000000000000f0  00000000000000ff
16-19  000000f0f00008e8  fffffff0f040c000  0000000000000000  0000000000000000
20-23  0000000000000001  00000000000000fa  fffffff0f0400000  0000000000000000
24-27  00000000000000f9  0000000000000000  000018001001c400  000000f0f015c540
28-31  0000000000000000  000000f0f040a908  000000f0f040a708  3031323334353637


Control Registers 0 - 31
00-03  000000007fffffff  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0007ffff0005ffff  0007ffff0005ffff  0000000000000000  0000000000000017
12-15  0007ffff0005ffff  0007ffff0004ffff  000000f0f0006800  0000000000000000
16-19  0000000968a46560  00000000ffffefff  00000000000006ec  00000000020008a1
20-23  000000009207c3c1  000000000280a890  000000ff0800ff08  0000000000000000
24-27  fffffffffffdffff  ffffffffffffffff  ffffffffffffffff  ffffffffffdfffff
28-31  fffffffffffdffff  ffffffffffffffff  ffffffffffffffff  dffffeffffffffff

Space Registers 0 - 7
00-03  7ffefffb          bcffffef          ffffffff          7ebffff7
04-07  ffffefff          ffffffff          ffffffff          3ff7ffff


IIA Space (back entry)       = 0x00000000ffffefff
IIA Offset (back entry)      = 0x00000000000006f0
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030000d
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffffa2000
System Requestor Address     = 0xfffffffffffa0000


Floating Point Registers 0 - 31
00-03  fed28bbffbff7fdf  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
04-07  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
08-11  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
12-15  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  fffff7ffffffffff
16-19  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
20-23  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
24-27  ffffffffffffffff  fffffeffffffffff  ffffffffffffffff  f7ffffffffffffff
28-31  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff


Check Summary                = 0xc381800000000000
Available Memory             = 0x0000000080000000
CPU Diagnose Register 2      = 0x0300010080002000
CPU Status Register 0        = 0x3040000000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x4800000000000000
Read Short LOG               = 0xc1af00f0f0400000



-----------------  Processor 1 LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



-----------------  Processor 1 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  00008cdb4e5b340d  0000000000000000  00000000000000f7
04-07  0000000000001277  fffffff0f040a000  0000000000000032  00000000000000f7
08-11  0000000000000000  fffffff0f0400000  00000000000000f6  00000000000000fe
12-15  00000000000000f2  0000000000000001  00000000000000f0  00000000000000ff
16-19  000000f0f00000c4  fffffff0f040c000  0000000000000000  0000000000000000
20-23  0000000000000001  00000000000000fa  fffffff0f0400000  0000000000000000
24-27  00000000000000f1  0000000000000000  000018001001c400  000000f0f015c540
28-31  0000000000000000  000000f0f040a908  000000f0f040a708  3031323334353637


Control Registers 0 - 31
00-03  000000007fffffff  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0007ffff0007ffff  0007ffff0007ffff  0000000000000000  0000000000000017
12-15  0007ffff0007ffff  0007ffff0006ffff  000000f0f0006800  0000000000000000
16-19  00008cdb4e60a6f1  00000000ffffefff  00000000000006f0  0000000002e008a2
20-23  00000000ae27c3c1  c000000000000000  000000ff0800ff08  0000000000000000
24-27  7fffffffffffffff  7fffffffffffffff  ffffffffffffffff  ffffffffffdfffff
28-31  7fffffffffffffff  fffffffffeffffff  ffffffffffffffff  ffffffffffffffff

Space Registers 0 - 7
00-03  7ffefffb          beffffef          ffffffff          7ebfffb5
04-07  ffffefff          ffffffff          ffffffff          3ff7ffff

IIA Space (back entry)       = 0x00000000ffffefff
IIA Offset (back entry)      = 0x00000000000006f4
CPU State                    = 0x9e000001


--------------  Memory Error Log Information  --------------

Bus 0 Log Information

Timestamp =    Mon Feb  23 20:41:59 GMT 2004    (20:04:02:23:20:41:59)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X       X      ERR_MEM           X   X     X

Bus Requestor Address      = 0xfffffffffffa0000
Bus Target Address         = 0x000000003fff0000
Bus Responder Address      = 0x0000000000000000

Error Status Reg           = 0x0000000001100170
Runway Control Reg         = 0x0000140000003800
Runway Address Reg         = 0xf8af0c003fff0000
Runway Data High Reg       = 0x84589948ddf6cf4c
Runway Data Low Reg        = 0xc22c4ca46efb67a6
Memory Address Reg         = 0x0000000000fffc00
Memory Address Corr Reg    = 0x0000000000fffc00
Memory Syndrome Reg        = 0x7700230000007700
Memory Syndrome Corr Reg   = 0x7700230000007700



 Address/Control Parity Error Registers

   Address/Control Parity Error Bit (mem_addr_par_stat) Not Set



------------  I/O Module Error Log Information  ------------

Summary of IO subsystem log entries
-----------------------------------
                        Phys Loc             Vendor  Device   Severity
Description             (hex)                 Id      Id      CORR UNC FE  CW
-----------             -----                ------  ------   ----------------
System Bus Adapter RP  0x000000ffff04ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000000ffff01ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000000ffff02ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000000ffff03ff83   0x103c  0x1051              X


Detail display of IO subsystem log entries
------------------------------------------

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Mon Feb  23 20:41:59 GMT 2004    (20:04:02:23:20:41:59)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff04ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Mon Feb  23 20:41:59 GMT 2004    (20:04:02:23:20:41:59)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff01ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Mon Feb  23 20:41:59 GMT 2004    (20:04:02:23:20:41:59)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff02ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Mon Feb  23 20:41:59 GMT 2004    (20:04:02:23:20:41:59)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff03ff83


--C7zPtVaVf+AK4Oqc--


From - Thu Nov 08 21:31:05 2018
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From: Wichert Akkerman <wichert@wiggy.net>
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Subject: [parisc-linux] kernel oops
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Xref: news.gmane.org gmane.linux.ports.parisc:20965

Trying jejb's 2.6.3-2 hppa64 kernel I quickly got the oops below.

Wichert.

sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.
sym3: SCSI BUS reset detected.
sym3: SCSI BUS has been reset.

********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

processor                 system panic               1B00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
428c07c70d00
 000000008c658c18:  000000001010c07c 000000001010c078 0000000000000000 0000000000000000
 000000008c658bf8:  0000000000000000 0000000000000000 0000000000000000 000000008f5f7268
 000000008c658bd8:  00000000104140e0 0000000000000003 000000000011a000 000000000000b6de
 000000008c658bb8:  0000000000000003 0000000000000000 00000000104140e0 000000008fffe048
 000000008c658b98:  0000000000018005 0000000000001000 3ff0000000000000 0000003900000000
 00000008c658b78:  0000000000000000 0000000010192864 000000008fffb000 0000000000000002
 000000008c658b58:  000000008f989ac8 0000000000000002 00000000f000028c 00000000f00003dc
 000000008c658b38:  00000000000000ff 00000000101a8398 00000000104140e0 0000000000000003
 000000008c658b18:  425010f415ca015c 0000000000000000 000000000000003e 000000000019660d
 000000008c658af8:  412e848000000000 000000000012e830 0000000000000000 0000000000000000
 000000008c658ad8:  0000000000000000 0000000000000000 0000000000000000 0c3ff80000000000
 000000008c658ab8:  000000001041f8e0 00000000104140e0 0000000000001000 000000008fffe048
 000000008c658a98:  0000000000018005 000000000011a000 0000000000000045 000000008c658680
 000000008c658a78:  0000000000000000 0000000010192960 fe00000000000000 0000000010338a00
 000000008c658a58:  fe00000000000000 000000008c658190 00000000103f7b40 0000000000000000
 000008c658a38:  000000008c658710 000000008f456540 0000000000000000 000000008c658710
 000000008c658a18:  000000008f456540 0000000000000001 000000008b31c0f0 0000000000000000
 000000008c6589f8:  0000000000000000 000000000012e934 00000000104140e0 0000000000000001
 000000008c6589d8:  000000008b31c0f0 000000001010c074 00000000104190e0 000000008f9db9c0
 000000008c6589b8:  00000000000bd718 000000008f456538 00000000104140e0 000000008f9db9c0
 000000008c658998:  00000000170fc2a5 000000008f456538 000000008d90c488 00000000104140e0
 000000008c658978:  00000000104140e0 0000000010170814 0000000000001000 000000008fb75000
 000000008c658958:  0000000000000000 000000008c658710 000000008f456540 000000008c658710
 000000008c658938:  0000000000000000 000000000011a000 000000008b31c0f0 000000008f5f7268
 000000008c658918:  000000008d90c488 000000000011a000 000000000000002b 000000008c658880
 000008c6588f8:  000000008fffe048 000000000012fce0 0000000000001000 000000008f456540
 000000008c6588d8:  000000008ff644f8 00000000000b5000 000000008b31c0f0 0000000000000000
 000000008c6588b8:  0000000000000000 000000008b31c0f0 000000008f5f7268 000000008d90c488
 000000008c658898:  000000008b31c0f0 0000000000000000 0000000000004a80 0000000000004a80
 000000008c658878:  0000000000000001 00000000000bd718 0000000000000000 3fec71c71c71c71c
 000000008c658858:  3d3ef9417e4f6712 3ff2000000000000 3ff0000000000000 000000000011a000
 000000008c658838:  000000008c658710 000000008f456540 000000008b31c0f0 0000000000000000
 000000008c658818:  0000000000000000 000000008b31c0f0 00000000f000028c 00000000f00003dc
 000000008c6587f8:  00000000000000ff 000000000012fdfc 00000000104140e0 000000001035d350
 000000008c6587d8:  425010f415ca015c 000000005d588b65 4da617703adf4af5 000000000019660d
 00000006587b8:  412e848000000000 0000000116400000 0000000000000000 000000000011a000
 000000008c658798:  000000000011a000 0000000000000000 0000000000000000 0c3ff80000000000
 000000008c658778:  000000000000000c 00000000001359cc 000000008c658670 0000000000000001
 000000008c658758:  000000000011a000 000000008b31c0f0 000000008f456540 000000000011a000
 000000008c658738:  0000000000000000 000000008b31c0f0 0000000000000000 0000000000000003
 000000008c658718:  0000000000000f00 000000008b31c0f0 00000000103f7b40 0000000000000002
 000000008c6586f8:  0000000000000004 000000000012ff10 000000008c658410 000000000011a000
 000000008c6586d8:  000000008d90c488 000000008f5f7268 000000008b31c0f0 0000000000000000
 000000008c6586b8:  0000000000000000 000000008f5f7268 000000008b31c0f0 0000000000000001
 000000008c658698:  00000000104140e0 000000008f5f7268 00000000103630e0 000000ff0804ff0f
 000000008c678:  0000000000000003 00000000101bac00 0000000000134248 0000000000000000
 000000008c658658:  0000000040374800 0000000000000001 000000000011a9f0 00000000104be340
 000000008c658638:  000000001018f4fc 0000000000000000 000000008b31c0f0 00000000104140e0
 000000008c658618:  000000008b31c150 0000000000000001 0000000000000000 000000008c658190
 000000008c6585f8:  000000008b31c0f0 00000000101b2ec0 00000000104140e0 00000000104140e0
 000000008c6585d8:  000000008a218000 0000000000000000 000000008fffe048 0000000000000001
 000000008c6585b8:  000000000000007e 0000000000019005 0000000000000001 000000000011a000
 000000008c658598:  000000008a9f3f10 0000000000000002 0000000000000000 0000000000000000
 000000008c658578:  000000008b31c0f0 000000008f5f7268 000000008e86cdd8 00000000104140e0
 000000008c658558:  0000000000000000 00000000104140e0 0000000000000001 0000000000000000
 000000008c658  000000008a9f3f10 0000000000000001 0000000031f45ae0 000000004043d178
 000000008c658518:  0000000031f45ae0 000000004043d178 000000008d90c488 0000000000000000
 000000008c6584f8:  00000000000000ff 00000000001272e0 00000000104140e0 0000000000000000
 000000008c6584d8:  000000005a2cf071 00000000104140e0 000000008e66d290 00000000104be460
 000000008c6584b8:  00000000101a1cb0 0000000000000000 00000000104140e0 000000008b31c0f0
 000000008c658498:  000000008b31c0f0 000000008a9f3f10 00000000104140e0 fffffffffffffffe
 000000008c658478:  000000008b31c1a8 000000008c658190 00000000103f7b40 0000000000000001
 000000008c658458:  0000000040374800 0000000000000000 0000000000134248 0000000000000001
 000000008c658438:  0000000000000003 000000000011e9f0 0000000000000000 0000000000000000
 000000008c658418:  0000000000000000 0000000000000000 0000000040333350 00000000faf03208
 000000008c6583f8:000000104140e0 00000000101ee154 00000000104140e0 0000000000011804
 000000008c6583d8:  00000000104140e0 000000008a218000 000000000000007e 0000000000011804
 000000008c6583b8:  0000000000011804 00000000104140e0 000000008a218000 0000000000000800
 000000008c658398:  00000000104140e0 000000008a9f3f10 000000000000003f 0000000000000000
 000000008c658378:  0000000000000000 00000000101a9730 000000008e66d298 00000000104140e0
 000000008c658358:  00000000faf00f08 000000008c658190 000000000012fafe 000000000000000c
 000000008c658338:  0000000000000000 000000000011a9f0 0000000000000001 0000000040374800
 000000008c658318:  0000000000000000 0000000000134248 0000000000000001 0000000000000003

Kernel addresses on the stack:
 [<000000001013c5f8>] scheduler_tick+0x3a8/0x888
 [<00000000000983d0>] sym53c8xx_intr+0x60/0xf8 [sym53c8xx]
 [<00000000101121b0>] do_irq+0xb8/0x190
 [<0000000010147408>] do_softirq+0xc8/0x150
 [<00000000101a8398>] locate_fd+0x130/0x1d0
 [<00000000101ef48c>] __udivdi3+0x1c/0x30
 [<000000001010c074>] intr_return+0x0/0x14
 [<0000000010190a80>] __find_get_block_slow+0x48/0x240
 [<0000000010192864>] __find_get_block+0xcc/0x190
 [<000000000012e830>] ext3_get_inode_block+0x1a8/0x230 [ext3]
 [<0000000010192960>] __getblk+0x38/0x80
 [<000000000012e934>] ext3_get_inode_loc+0x7c/0x400 [ext3]
 [<0000000010170814>] kmem_cache_alloc+0x1d4/0x2b0
 [<000000000012fce0>] ext3_reserve_inode_write+0x50/0x138 [ext3]
 [<00000000000bd718>] new_handle+0x30/0x78 [jbd]
 [<000000000012fdfc>] ext3_mark_inode_dirty+0x34/0x78 [ext3]
 [<00000000001359cc>] ext3_journal_start+0x8c/0x98 [ext3]
 [<000000000012ff10>] ext3_dirty_inode+0xd0/0xd8 [ext3]
 [<00000000101bac00>] __mark_inode_dirty+0x50/0x128
 [<00000000101b2ec0>] update_atime+0xe8/0x130
 [<00000000001272e0>] ext3_readdir+0x158/0x568 [ext3]
 [<00000000101ee154>] __divdi3+0x74/0xd0
 [<00000000101a9730>] vfs_readdir+0x108/0x128
 [<00000000101a9da8>] sys_getdents64+0x70/0xf8
 [<000000001010ce4c>] syscall_exit+0x0/0x14
 [<000000001010c094>] intr_check_sig+0x0/0xc


Kernel Fault: Code=15 regs=000000008c658d80 (Addr=0000000000016031)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000011101111111100001111 Not tainted
r00-03  0000000000000000 000000001049eea0 000000001016402c 0000000000000000
r04-07  00000000104140e0 00000000104140e0 0000000000018005 0000000000000000
r08-11  000000008b31c0f0 000000008b31c0f0 000000008f5f7268 0000000000018005
r12-15  000000008c658710 000000008c658410 0000000000000000 0000000000000004
r16-19  0000000000000002 00000000103f7b40 000000008c658190 0000000000016029
r20-23  0000000000000000 0000000000016001 00000000fffffffa 000000000000003f
r24-27  0000000000001000 0000000000018005 0000000000016031 00000000104140e0
r28-31  0000000000000000 000000008c658cf0 000000008c658d80 000000000000f380
sr0-0000000000004a80 0000000000004a80 0000000000000000 0000000000004a80
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101e7da0 00000000101e7d40
 IIR: 0f4010dc    ISR: 0000000000000000  IOR: 0000000000016031
 CPU:        8   CR30: 000000008c658000 CR31: 00000000103e8000
 ORIG_R28: 0000000010147408
 IAOQ[0]: radix_tree_lookup+0x80/0x88
 IAOQ[1]: radix_tree_lookup+0x20/0x88
 RP(r2): find_get_page+0x1c/0x50

-- 
Wichert Akkerman <wichert@wiggy.net>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.



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Subject: [parisc-linux] another kernel oops
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Xref: news.gmane.org gmane.linux.ports.parisc:20966

Same machine, same kernel:

Stack Dump:
 000000008eb90ff8:  000000008eb90ff8 0000000000000000 0000000000000000 0000000000000000
 000000008eb90fd8:  000000000001ac80 0000000000000000 000000000001ac80 000000000001ac80
 000000008eb90fb8:  0000000000000002 000000001013f37c 00000000f000028c 0000000000000802
 000000008eb90f98:  0000000010471020 0000000013262000 0000000000000000 000007b100000802
 000000008eb90f78:  0000000000000000 000000008eb90a80 0000000000000000 0000000010471020
 000008eb90f58:  000000000000001a c00000000000005f ffffffffffffffff ffffffffffffffff
 000000008eb90f38:  ffffffffffffffff 000000001010dfd4 ffffffffffffffff ffffffffffffffff
 000000008eb90f18:  ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff
 000000008eb90ef8:  ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff
 000000008eb90ed8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008eb90eb8:  0000000010480820 000000008eb90dc0 000000008eb90eb0 0000000000000001
 000000008eb90e98:  0000000010471020 00000000000000f0 0000000000000045 000000008eb90838
 000000008eb90e78:  000000008eb94bf8 0000000000000001 0000000000000000 0000000000000001
 000000008eb90e58:  fe00000000000000 00000000103f2b18 0000000000000000 000000008eb90a80
 000000008eb90e38:  0000000000000000 0000000000000001 000000008f5c6ac0 000000008eb90410
 000008eb90e18:  000000008eb94cf0 000000008eb90690 000000000000000f 0000000000000000
 000000008eb90df8:  0000000010471020 000000008eb94bf8 0000000010471020 0000000000000000
 000000008eb90dd8:  0000000010471020 0000000010109074 0000000010477020 0000003f0806ff0f
 000000008eb90db8:  0000000000000f2a 0000000010109094 000000008ede1980 000000008eaa1730
 000000008eb90d98:  0000000000000f2b 000000008ede1980 000000000000adf6 000000008eb90d00
 000000008eb90d78:  0000000010471020 00000000101decf4 000000001305cab0 0000000000000001
 000000008eb90d58:  00000000000000d2 0000000010471020 000000008f1726a0 0000000010471020
 000000008eb90d38:  000000008eb90c10 0000000088610450 000000008eaa1638 c00000000000005f
 000000008eb90d18:  0000000000000000 00000000529300c0 000000000000001b 000000008b62a0c0
 000000008eb90cf8:  0000000012d5e860 00000000101deed0 0000000010471020 0000000000000000
 000000eb90cd8:  00000000101ae030 00000000101ae02c 0000000000000000 0000000000000000
 000000008eb90cb8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008eb90c98:  000000000001ac80 0000000000000000 000000000001ac80 000000000001ac80
 000000008eb90c78:  0000000000000002 000000001013f37c 00000000f000028c 0000000000000802
 000000008eb90c58:  0000000010471020 0000000013262000 0000000000000000 000007b100000802
 000000008eb90c38:  0000000333333334 cccccccd47ae16ac 0000000013262000 0000000000000002
 000000008eb90c18:  000000008ffa7a80 0000000000000002 ffffffffffffffff ffffffffffffffff
 000000008eb90bf8:  ffffffffffffffff 00000000101a35a0 ffffffffffffffff ffffffffffffffff
 000000008eb90bd8:  ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff
 000000008eb90bb8:  ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff
 0000000080b98:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008eb90b78:  0000000010472020 000000008eb90a80 000000008eb90970 ffffffffffffffea
 000000008eb90b58:  0000000010471020 000000008eb94bf8 0000000000000001 0000000000000001
 000000008eb90b38:  0000000000000000 0000000000000000 0000000000000408 ffffffffffffffff
 000000008eb90b18:  0000000000000000 00000000103f2b18 0000000000000000 000000008eb94bf8
 000000008eb90af8:  0000000000000000 0000000000000001 000000008f5c6ac0 000000008eb90410
 000000008eb90ad8:  000000008eb94cf0 000000008eb90690 000000000000000f 0000000000000000
 000000008eb90ab8:  0000000000000001 0000000000000000 0000000000000001 000000008eb94bf8
 000000008eb90a98:  000000008eb90838 00000000101639b4 000000008eb90470 000000ff0806f00f
 000000008eb90a78:  000000008eb90840 00000000101db1d8 000000008f5c68c0 0000000000000000
 000000008eb98:  0000000012d0a300 0000000010471020 0000000010471020 0000000012d0a300
 000000008eb90a38:  00000000103ec048 0000000000000000 00000000000000d0 0000000000000010
 000000008eb90a18:  0000000010471020 0000000000000000 000000001047c820 0000007f0804ff0f
 000000008eb909f8:  000000000000a000 000000001023c7e4 0000000000000000 000000008eb90838
 000000008eb909d8:  000000008eb90838 0000000000000000 0000000010471020 000000008eb94bf8
 000000008eb909b8:  0000000010471020 0000000000000000 0000000012d53640 00000000103ec048
 000000008eb90998:  0000000012d0a300 0000000010471020 0000000000000000 0000000012d53640
 000000008eb90978:  0000000000040001 00000000101639b4 0000000000000000 0000000000000000
 000000008eb90958:  0000000000000010 00000000000000d0 0000000000000000 00000000103ec048
 000000008eb90938:  0000000012d1c0f0 0000000010471020 0000000010471020 000000008eedb2c0
 000000008eb9091000000008eedb2c0 0000000010471020 0000000010475020 000000ff0806ff0f
 000000008eb908f8:  ffffffffffffffff 00000000102d0e70 000000008eb908d8 000000008eb90780
 000000008eb908d8:  000000008eb90410 000000008eb94bf8 0000000010471020 0000000010471020
 000000008eb908b8:  000000008eb94cb0 000000000000000f 0000000000000000 000000008eb90290
 000000008eb90898:  000000008f5c6af8 0000000000000000 000000008eb90290 0000000000026940
 000000008eb90878:  0000000000000000 0000000000000004 0000000000000000 0000000000000004
 000000008eb90858:  000000008eb90470 0000000000000000 000000008eb90690 0000000000000000
 000000008eb90838:  000000000000000f 00000000000cfb96 0000000010471020 000000008eedb2c0
 000000008eb90818:  0000000010471020 0000000010471020 0000000000000000 000000008eb90780
 000000008eb907f8:  000000008ede1780 00000000102d0f4c 0000000000000040 0000000000000000
 000000008eb907d8:  00008eb90310 0000000010471020 000000008ffa4bb0 0000000010471020
 000000008eb907b8:  0000000000000000 000000000000003a 0000000000000000 000000000000003a
 000000008eb90798:  000000008eedb2c0 0000000000000000 000000000800000e 000000008eb90680
 000000008eb90778:  0000000012e0eb20 0000000010164470 0000000010471020 000000008eb90580
 000000008eb90758:  0000000010471020 0000000010471020 0000000000000000 000000000800000f
 000000008eb90738:  0000000010471020 0000000010471020 0000000010471020 000000008eb90590
 000000008eb90718:  0000000010471020 0000000010471020 0000000000000019 000000008eb90680
 000000008eb906f8:  000000008c35b468 00000000102d3be0 000000008c35b470 000000008eedb2c0
 000000008eb906d8:  0000000000000000 000000008eb90220 0000000010471020 000000008eb94bf8
 000000008eb906b8:  000000008f5c6ac0 000000008f5c6af8 0000000010471020 0000000010471020
 000000008eb90698:  00000000000f 000000000002b308 7fffffffffffffff 000000008eedb2c0
 000000008eb90678:  0000000000000002 00000000101d6afc 00000000f000028c 000000008eb90480
 000000008eb90658:  0000000010471020 00000000886103f0 0000000010471020 000000000800000f
 000000008eb90638:  0000000010471020 000000008f67e7c0 0000000010471020 000000008eb90410
 000000008eb90618:  000000008f5c6af8 000000008f5c6ac0 0000000000000000 0000000000000000
 000000008eb905f8:  0000000010471020 0000000010189f64 0000000010410420 00000000000003fe
 000000008eb905d8:  00000000faf003a0 0000000000000000 0000000000000000 000000008eb90260
 000000008eb905b8:  0000000000000000 0000003a00000000 0000000000000000 0000000000000000
 000000008eb90598:  0000000000000000 000000ca00000000 000000008f628800 7fffffffffffffff
 000000008eb90578:  ffffffffffffffff 00000000102cc06c ffffffffffffffff 0000000000000000
 000000008eb90558:  000000001020 0000000010450440 000000008eb902a0 0000000000000005
 000000008eb90538:  000000008eb901c0 0000000010624800 000000008eb901b0 0000000085670010
 000000008eb90518:  0000000000000000 0000000010471020 0000000000000035 0000000010456f60
 000000008eb904f8:  0000000010471020 00000000101a50cc 000000008ede1880 000000008ede1780
 000000008eb904d8:  0000000000000304 0000000000000000 000000008ffa4b80 0000000010471020
 000000008eb904b8:  0000000000000000 000000008eb90290 000000008ede1780 0000000000000304
 000000008eb90498:  0000000000080000 0000000000000001 0000000000000000 00000000faf003a0
 000000008eb90478:  0000000000026940 00000000000cfb96 0000000000015800 000000008f685b58
 000000008eb90458:  000000000000000a 000000000800000e 0000000000000002 0000000000000000
 000000008eb90438:  000000008f628a68 000000008f5c6ac0 00000001ffffffff 0000000000000000
 000000008eb90418:  000000000000 000000008ffa4b80 00000000000003fe 000000008f686098
 000000008eb903f8:  0000000010471020 000000001011ca44 0000000010471020 000000008f685b58
 000000008eb903d8:  0000000000000000 0000000000000000 0000000000040001 0000000000000000
 000000008eb903b8:  000000008f628a68 0000000000000000 00000001ffffffff 0000000000000000
 000000008eb90398:  0000000010471020 0000000000000000 0000000000000052 0000000000026940
 000000008eb90378:  000000000000f380 00000000102cdd1c 000000008c35b450 000000008f5c6ac0
 000000008eb90358:  0000000010471020 0000000000000006 00000000faf011d0 fffffffffffffff7
 000000008eb90338:  00000000faf011d0 0000000000000002 0000000000027208 0000000000026b50
 000000008eb90318:  0000000000027140 0000000000027140 00000000faf00310 0000000000026ae8
 000000008eb902f8:  00000000faf003a0 0000000000026940 0000000000000001 0000000000015b00
 000000008eb902d8:  0000000000000026000000002b218 0000000000000001 0000000000016000
 000000008eb902b8:  0000000000000007 000000000002b318 0000000000000001 0000000000016000
 000000008eb90298:  000000000000000f 000000000002b308 0000000000000400 0000007f0804ff0f
 000000008eb90278:  0000000000000005 000000001011cc18 000000008f686098 0000000000000000
 000000008eb90258:  000000003ccbf000 0000000000000012 0000000000000000 0000000000000000
 000000008eb90238:  0000000000000001 000000008eb90210 0000000000026ae8 000000008eb90260
 000000008eb90218:  00000000000003c4 00000000faf003da 0000000000015800 0000000000026940
 000000008eb901f8:  0000000000015800 00000000102cdd88 0000000000026940 0000000040187740
 000000008eb901d8:  0000000000000040 7fffffffffffffff 00000000faf011d0 0000000000000000
 000000008eb901b8:  000000008c35b468 000000000002af60 0000000040186108 0000000000000006
 000000008eb90198:  0000000000000002 0000faf011d0 000000008f685b58 00000000faf01740
 000000008eb90178:  0000000000000000 0000000010109e4c 0000000000026940 000000000002b318
 000000008eb90158:  00000000faf00ce0 0000000000000002 0000000000000026 0000000000000001
 000000008eb90138:  000000000001576f 0000000040186108 0000000000000004 0000000000000004
 000000008eb90118:  00000000faf01248 0000000000000004 0000000010477020 000000000002af60
 000000008eb900f8:  0000000000000000 0000000010109074 0000000000000000 0000000000000000
 000000008eb900d8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008eb900b8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008eb90098:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008eb90078:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008eb90058:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008eb90038:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008eb90018:  0000000100000000 0000000000000008 00000000103e71d0

Kernel addresses on the stack:
 [<00000000101decf4>] ext3_mark_iloc_dirty+0x3c/0x70
 [<00000000101deed0>] ext3_mark_inode_dirty+0x70/0x78
 [<000000001013f37c>] call_console_drivers+0xe4/0x1e8
 [<00000000101a35a0>] locate_fd+0x130/0x1d0
 [<00000000101db1d8>] ext3_ordered_commit_write+0xf8/0x180
 [<000000001023c7e4>] __divdi3+0x74/0xd0
 [<00000000101639b4>] generic_file_aio_write_nolock+0x23c/0xba8
 [<00000000102d0e70>] skb_release_data+0xf8/0x198
 [<00000000102d0f4c>] kfree_skbmem+0x3c/0x58
 [<0000000010164470>] generic_file_aio_write+0xc0/0x130
 [<00000000102d3be0>] skb_free_datagram+0x58/0x60
 [<00000000101d6afc>] ext3_file_write+0x34/0x108
 [<0000000010189f64>] do_sync_write+0x84/0xc8
 [<00000000102cc06c>] sock_recvmsg+0xa4/0xe8
 [<00000000101a50cc>] poll_freewait+0x6c/0x90
 [<000000001011ca44>] do_readv_writev32+0x23c/0x2c0
 [<00000000102cdd1c>] sys_recvfrom+0x11c/0x160
 [<000000001011cc18>] sys32_writev+0x80/0xd0
 [<00000000102cdd88>] sys_recv+0x28/0x40
 [<0000000010109e4c>] syscall_exit+0x0/0x14
 [<0000000010109074>] intr_return+0x0/0x14


Kernel Fault: Code=26 regs=000000008eb90a80 (Addr=c00000000000005f)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111000000001111 Not tainted
r00-03  0000000000000000 000000008eb90470 00000000101639b4 000000008eb90838
r04-07  000000008eb94bf8 0000000000000001 0000000000000000 0000000000000001
r08-11  0000000000000000 000000000000000f 000000008eb90690 000000008eb94cf0
r12-15  000000008eb90410 000000008f5c6ac0 00000000001 0000000000000000
r16-19  000000008eb94bf8 0000000000000000 00000000103f2b18 0000000000000000
r20-23  ffffffffffffffff 0000000000000408 0000000000000000 0000000000000000
r24-27  0000000000000001 0000000000000001 000000008eb94bf8 0000000010471020
r28-31  ffffffffffffffea 000000008eb90970 000000008eb90a80 0000000010472020
sr0-3   000000000001ac80 000000000001ac80 0000000000000000 000000000001ac80
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101ae02c 00000000101ae030
 IIR: 529300c0    ISR: 0000000000000000  IOR: c00000000000005f
 CPU:        8   CR30: 000000008eb90000 CR31: 0000000010440000
 ORIG_R28: 00000000101deed0
 IAOQ[0]: inode_update_time+0x34/0x110
 IAOQ[1]: inode_update_time+0x38/0x110
 RP(r2): generic_file_aio_write_nolock+0x23c/0xba8


-- 
Wichert Akkerman <wichert@wiggy.net>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.



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Hello.
I have C3600 with FX10 video card.
How Xfree86 make work ?
I seen driver for linux rh 7.2 on hp site, but this compiled is not 
for RISC processor ?

Regards,
Yuri Kozlov


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> I have C3600 with FX10 video card.
> How Xfree86 make work ?
> I seen driver for linux rh 7.2 on hp site, but this compiled is not 
> for RISC processor ?

this is a faq. please read the faq on the web page or the list archives.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Xref: news.gmane.org gmane.linux.ports.parisc:20969

And another one :(

kernel BUG at kernel/timer.c:370!
Kernel addresses on the stack:
 [<000000001010d478>] show_trace+0x40/0x110
 [<000000001010d2c4>] dump_stack+0x24/0x38
 [<00000000101496f0>] cascade+0x80/0xd0
 [<000000001014a20c>] run_local_timers+0x1c/0x30
 [<000000001014a1a8>] run_timer_softirq+0x1d8/0x220
 [<00000000101446a0>] do_softirq+0xc8/0x150
 [<000000001010e5b8>] timer_interrupt+0x1c0/0x268
 [<000000001010f248>] do_irq+0x138/0x190
 [<000000001010f368>] do_cpu_irq_mask+0xc8/0x138
 [<000000001013f750>] printk+0x1a8/0x218
 [<0000000010109074>] intr_return+0x0/0x14

kernel BUG at kernel/timer.c:370!
Kernel addresses on the stack:
 [<000000001010d478>] show_trace+0x40/0x110
 [<000000001010d2c4>] dump_stack+0x24/0x38
 [<00000000101496f0>] cascade+0x80/0xd0
 [<000000001014a20c>] run_local_timers+0x1c/0x30
 [<000000001014a1a8>] run_timer_softirq+0x1d8/0x220
 [<00000000101446a0>] do_softirq+0xc8/0x150
 [<000000001010e5b8>] timer_interrupt+0x1c0/0x268
 [<000000001010f248>] do_irq+0x138/0x190
 [<000000001010f368>] do_cpu_irq_mask+0xc8/0x138
 [<000000001013f750>] printk+0x1a8/0x218
 [<0000000010109074>] intr_return+0x0/0x14


Stack Dump:
 000000008e710af8:  000000008e710af8 0000000010273a44 00000000f000028c 0000000010471020
 000000008e710ad8:  00000000000062dd 0000000000000004 0000000000000022 0000000000000000
 000000008e710ab8:  0000000000000080 0000000000000000 0000000000000000 000000000003bddc
 000000008e710a98:  0000000000006791 0000000000006791 40ce7f6440ce7f6c 40ce7f5840ce7b9c
 000000008e710a78:  40ce7f4c40ce7f50 000000008e710580 0000000000000000 0000000010471020
 000000008e710a58:  000000000000000f 0000003f0804ff3f 0000000000000036 0000000000100100
 000000008e710a38:  00000000000251e0 000000001010dfd4 0000000000000000 000000000003bddc
 000000008e710a18:  0000000000000000 0000000000000000 40ce79dc40d0ec6c 40ce79bc40ce79d0
 000000008e7109f8:  40ce79a840ce79ac 000000001013f150 40ce796840ce7974 40ce796440ce7948
 000000008e7109d8:  000000008e710680 0000000010471020 000000008e710000000008e710800
 000000008e7109b8:  0000000010471020 000000008e710690 000000001037be04 00000000000251e0
 000000008e710998:  0000000000000000 0000000000000000 0000000000000001 0000003f0804ff0f
 000000008e710978:  00000000103ea700 000000008e70bc40 0000000010471020 00000000103e8f90
 000000008e710958:  000000008e710680 0000000010471020 000000000800000e 000000008e710800
 000000008e710938:  0000000010471020 0000000000006795 0000000010471020 0000000010471020
 000000008e710918:  0000000010471020 ffffffffffffe3ba 40d1697c00001b84 40d1697c00001b78
 000000008e7108f8:  40d1697c00001b6c 000000001013f28c 40d1697c00001b54 40d1697c00001b48
 000000008e7108d8:  000000001050a87b 0000000010471020 000000008e710640 000000001037be07
 000000008e7108b8:  0000000000000001 0000000010109094 000000008e710680 000000008e7107b0
 000000008e710898:  0000000000006795 0000000000006795 000000000003bddc 000000000000
 000000008e710878:  0000000000000000 000000001013f37c 0000000000000000 000000001037f354
 000000008e710858:  0000000000000000 000000008e710a90 0000000000000800 000000001037f354
 000000008e710838:  000000008e7107b0 000000001037be04 000000001037be04 0000003f0804ff3f
 000000008e710818:  0000000000000000 0000000050730060 000000000000003f 40d1697c000019f8
 000000008e7107f8:  40d1697c000019ec 000000001013f944 40d1697c000019d4 40d1697c000019c8
 000000008e7107d8:  00000000101496b4 00000000101496b0 0000000000000000 0000000000000000
 000000008e7107b8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008e710798:  000000000001db80 0000000000000000 0000000000000000 000000000001d480
 000000008e710778:  0000000000000023 000000001013f37c 00000000f000028c 0000000000000802
 000000008e710758:  0000000010471020 0000000013251000 0000000000000000 000000000802
 000000008e710738:  0000000000000000 0000000000000000 0000000013251000 0000000000000002
 000000008e710718:  000000008ffa7a80 0000000000000002 ffffffffffffffff ffffffffffffffff
 000000008e7106f8:  ffffffffffffffff 00000000101a35a0 ffffffffffffffff ffffffffffffffff
 000000008e7106d8:  ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff
 000000008e7106b8:  ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff
 000000008e710698:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008e710678:  0000000010480820 000000008e710580 000000008e710570 0000000000000001
 000000008e710658:  0000000010471020 00000000103e8f90 000000008e70bc40 0000000010480820
 000000008e710638:  ffffffff0fe31074 0000000010109074 0000000000000001 00000000103e8fa0
 000000008e710618:  000000008e70c290 0000000010471020 00000000f000028c 00000000fd40
 000000008e7105f8:  0000000000000000 0000000000000000 000000000003bddc 0000000000000000
 000000008e7105d8:  0000000000000000 00000000000251e0 0000000000100100 0000000000000036
 000000008e7105b8:  00000000103e8f90 0000000010471020 000000008e70bc40 00000000103ea700
 000000008e710598:  0000003f0804ff0f 0000000010149708 0000000010478820 0000000008048f0e
 000000008e710578:  40d1697c0000162c 00000000101496f0 000000008e708410 000000001037e768
 000000008e710558:  000000001037e750 000000008e70c298 ffffffff8e434298 0000000000000172
 000000008e710538:  000000001037e768 000000001037e750 40d1697c000015b4 0000000010528b38
 000000008e710518:  0000000000000000 0000000010471020 40d1697c00001584 40d1697c00001578
 000000008e7104f8:  40d1697c0000156c 000000001014a20c 0000000010471020 0000000010471020
 000000008e7104d8:  0000000010471020 0000000000000000 00000000132a0000 000000001047
 000000008e7104b8:  00000000103e8f90 0000000010471020 0000000000000000 000000008e710398
 000000008e710498:  000000008e710398 0000000000200200 000000000800000e 0000000000000000
 000000008e710478:  0000000000000001 000000001014a1a8 0000000010471020 000000000800000e
 000000008e710458:  0000000000000022 0000000000000001 0000000000000022 0000000000000000
 000000008e710438:  0000000000000080 000000001013f750 0000000000000000 000000008e70fd40
 000000008e710418:  0000000000000000 0000000000000001 40d1697c00001404 0000000010395c84
 000000008e7103f8:  40d1697c000013ec 000000001051adb0 0000000000000001 0000000010471020
 000000008e7103d8:  000000000000000a 000000000800000e 0000000000000001 0000000000000065
 000000008e7103b8:  40d1697c0000138c 000000008e710398 000000008e710398 000000008e710398
 000000008e710398:  000000008e710398 000000008e70fd40 0020000000000000 00000000284100f8 000000008e710378:  00000000132a072c 00000000101446a0 00000000132a0000 00000000132a0000
 000000008e710358:  00000000f8004128 0000000010471020 000000008e70fd40 0000000000000000
 000000008e710338:  0000000000000001 00000000000251e0 0000000000000000 0000000000000000
 000000008e710318:  0000000000000000 00000000f000028c 000000000800000e 0000000010471020
 000000008e7102f8:  0000000000000002 000000001010e5b8 0000000010471020 000000000800000e
0000008e7102d8:  000000000000001f 0000000000000002 0000000000000022 0000000000000000
 000000008e7102b8:  0000000000000080 0000000000000000 0000000000000040 0000000010471020
 000000008e710298:  0000000000000000 000000008e70fd40 40ce317840d1698c 0000000010396bb5
 000000008e710278:  00000000132d6000 000000001010f248 0000000000000020 000000000800000e
 000000008e710258:  0000000010471020 0000000000000002 40ce2be440d1698c 000000008e710140
 000000008e710238:  40ce29ec40d1698c 00000000102a6cf4 0000000000000002 0000000000000000
 000000008e710218:  000000001047a020 00000000103cf2d0 00000000103e6058 000000008e70fa00
 000000008e7101f8:  00000000132a072c 0000000010396b98 40ce0da440d1698c 00000000132d6000
 000000008e7101d8:  0000000010471020 000000000800000f 40ce054440d1698c 40ce045040d1698c
 000000008e7101b8:  40ce03c040d1698c 0800000000000000 0000000000000000 8000000000000000
 000008e710198:  0000000010471020 000000008e70fd40 00000000132a0000 0000000010471020
 000000008e710178:  000000000800000e 000000001010f368 000000008e70fa00 0000000000000001
 000000008e710158:  0000000000000065 00000000000251e0 000000000800000e 0000000000000000
 000000008e710138:  0000000000000001 00000000102a0150 0000000010471020 000000000800000e
 000000008e710118:  0000000000000022 0000000000000001 0000000000000022 000000008e710000
 000000008e7100f8:  0000000000000080 000000001013f750 0000000000000000 000000008ffcf090
 000000008e7100d8:  0000000000000083 0000000010471020 40cd938840d1698c 0000000010395c84
 000000008e7100b8:  00000000000261dd 0000000000000fff 0000000000000004 000000008e708410
 000000008e710098:  0000000010471020 0000000000000000 0000000000000001 0000000000000065
 000000008e710078:  40cd6cd040d1698c 0000000010109074 000000008e710058 000000008e710058
 000008e710058:  000000008e710058 000000008e70fa00 0020000000000000 00000000284100f8
 000000008e710038:  00000000132a072c 00000000101446a0 00000000132a0000 00000000132a0000
 000000008e710018:  00000000f8004128 0000000010471020 000000008e70fa00

Kernel addresses on the stack:
 [<0000000010273a44>] serial8250_console_write+0x29c/0x500
 [<000000001013f150>] __call_console_drivers+0x98/0xc8
 [<000000001013f28c>] _call_console_drivers+0x10c/0x118
 [<000000001013f37c>] call_console_drivers+0xe4/0x1e8
 [<000000001013f944>] release_console_sem+0x84/0x160
 [<000000001013f37c>] call_console_drivers+0xe4/0x1e8
 [<00000000101a35a0>] locate_fd+0x130/0x1d0
 [<00000000101496f0>] cascade+0x80/0xd0
 [<000000001014a20c>] run_local_timers+0x1c/0x30
 [<000000001014a1a8>] run_timer_softirq+0x1d8/0x220
 [<00000000101446a0>] do_softirq+0xc8/0x150
 [<000000001010e5b8>] timer_interrupt+0x1c0/0x268
 [<000000001010f248>] do_irq+0x138/0x190
 [<000000001010f368>] do_cpu_irq_mask+0xc8/0x138
 [<000000001013f750>] printk+0x1a8/0x218
 [<0000000010109074>] intr_return+0x0/0x14


Kernel Fault: Code=15 regs=000000008e710580 (Addr=0000003f0804ff3f)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001000111100001110 Not tainted
r00-03  0000000000000000 0000000010478820 0000000010149708 0000003f0804ff0f
r04-07  00000000103ea700 000000008e70bc40 0000000010471020 00000000103e8f90
r08-11  0000000000000036 0000000000100100 00000000000251e0 0000000000000000
r12-15  0000000000000000 000000000003bddc 0000000000000000 0000000000000000
r16-19  000000008e70fd40 00000000f000028c 0000000010471020 000000008e70c290
r20-23  00000000103e8fa0 0000000000000001 0000000010109074 ffffffff0fe31074
r24-27  0000000010480820 000000008e70bc40 00000000103e8f90 0000000010471020
r28-31  0000000000000001 000000008e710570 000000008e710580 0000000010480820
sr0-3   000000000001d480 0000000000000000 0000000000000000 000000000001db80
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101496b0 00000000101496b4
 IIR: 50730060    ISR: 0000000000000000  IOR: 0000003f0804ff3f
 CPU:        CR30: 000000008e708000 CR31: 0000000010440000
 ORIG_R28: 000000001013f944
 IAOQ[0]: cascade+0x40/0xd0
 IAOQ[1]: cascade+0x44/0xd0
 RP(r2): cascade+0x98/0xd0


-- 
Wichert Akkerman <wichert@wiggy.net>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.



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Xref: news.gmane.org gmane.linux.ports.parisc:20970

And another one. 2.6.4-rc1-pa kernel compiled by tausq to rule out
problems in my toolchain.

syslogd (pid 198): Illegal instruction (code 8) at 000000004004c47f
kernel BUG at include/linux/mm.h:275!
Kernel addresses on the stack:
 [<0000000010105680>] show_trace+0x40/0x108
 [<00000000101054cc>] dump_stack+0x24/0x38
 [<0000000010182948>] free_page_and_swap_cache+0xd0/0x130
 [<0000000010172358>] zap_pte_range+0x220/0x288
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<00000000101724a8>] zap_pmd_range+0xe8/0x108
 [<0000000010172580>] unmap_page_range+0xb8/0x298
 [<00000000101728d0>] unmap_vmas+0x170/0x3a8
 [<0000000010178abc>] exit_mmap+0x8c/0x2d0
 [<0000000010279b90>] put_io_context+0xc8/0xd8
 [<000000001013b8b4>] mmput+0xa4/0xe0
 [<00000000101415b8>] do_exit+0x250/0x580
 [<0000000010199ab8>] do_coredump+0x178/0x248
 [<0000000010141a40>] do_group_exit+0xe8/0x110
 [<000000001014d620>] get_signal_to_deliver+0x1b0/0x530
 [<0000000010112d6c>] do_signal+0x3c/0x324
 [<0000000010139174>] schedule+0x3f4/0x7c8
 [<000000001010c2c8>] intr_do_signal+0x2c/0x34

swap_free: Bad swap file entry 008f0844
swap_free: Bad swap file entry 00000005
kernel BUG at include/linux/mm.h:275!
Kernel addresses on the stack:
 [<0000000010105680>] show_trace+0x40/0x108
 [<00000000101054cc>] dump_stack+0x24/0x38
 [<0000000010182948>] free_page_and_swap_cache+0xd0/0x130
 [<0000000010172358>] zap_pte_range+0x220/0x288
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<00000000101724a8>] zap_pmd_range+0xe8/0x108
 [<0000000010172580>] unmap_page_range+0xb8/0x298
 [<00000000101728d0>] unmap_vmas+0x170/0x3a8
 [<0000000010178abc>] exit_mmap+0x8c/0x2d0
 [<0000000010279b90>] put_io_context+0xc8/0xd8
 [<000000001013b8b4>] mmput+0xa4/0xe0
 [<00000000101415b8>] do_exit+0x250/0x580
 [<0000000010199ab8>] do_coredump+0x178/0x248
 [<0000000010141a40>] do_group_exit+0xe8/0x110
 [<000000001014d620>] get_signal_to_deliver+0x1b0/0x530
 [<0000000010112d6c>] do_signal+0x3c/0x324
 [<0000000010139174>] schedule+0x3f4/0x7c8
 [<000000001010c2c8>] intr_do_signal+0x2c/0x34

kernel BUG at include/linux/mm.h:275!
Kernel addresses on the stack:
 [<0000000010105680>] show_trace+0x40/0x108
 [<00000000101054cc>] dump_stack+0x24/0x38
 [<0000000010182948>] free_page_and_swap_cache+0xd0/0x130
 [<0000000010172358>] zap_pte_range+0x220/0x288
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<00000000101724a8>] zap_pmd_range+0xe8/0x108
 [<0000000010172580>] unmap_page_range+0xb8/0x298
 [<00000000101728d0>] unmap_vmas+0x170/0x3a8
 [<0000000010178abc>] exit_mmap+0x8c/0x2d0
 [<0000000010279b90>] put_io_context+0xc8/0xd8
 [<000000001013b8b4>] mmput+0xa4/0xe0
 [<00000000101415b8>] do_exit+0x250/0x580
 [<0000000010199ab8>] do_coredump+0x178/0x248
 [<0000000010141a40>] do_group_exit+0xe8/0x110
 [<000000001014d620>] get_signal_to_deliver+0x1b0/0x530
 [<0000000010112d6c>] do_signal+0x3c/0x324
 [<0000000010139174>] schedule+0x3f4/0x7c8
 [<000000001010c2c8>] intr_do_signal+0x2c/0x34

kernel BUG at include/linux/mm.h:275!
Kernel addresses on the stack:
 [<0000000010105680>] show_trace+0x40/0x108
 [<00000000101054cc>] dump_stack+0x24/0x38
 [<0000000010182948>] free_page_and_swap_cache+0xd0/0x130
 [<0000000010172358>] zap_pte_range+0x220/0x288
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<00000000101724a8>] zap_pmd_range+0xe8/0x108
 [<0000000010172580>] unmap_page_range+0xb8/0x298
 [<00000000101728d0>] unmap_vmas+0x170/0x3a8
 [<0000000010178abc>] exit_mmap+0x8c/0x2d0
 [<0000000010279b90>] put_io_context+0xc8/0xd8
 [<000000001013b8b4>] mmput+0xa4/0xe0
 [<00000000101415b8>] do_exit+0x250/0x580
 [<0000000010199ab8>] do_coredump+0x178/0x248
 [<0000000010141a40>] do_group_exit+0xe8/0x110
 [<000000001014d620>] get_signal_to_deliver+0x1b0/0x530
 [<0000000010112d6c>] do_signal+0x3c/0x324
 [<0000000010139174>] schedule+0x3f4/0x7c8
 [<000000001010c2c8>] intr_do_signal+0x2c/0x34

swap_free: Bad swap file entry 003ccbf0
swap_free: Bad swap file entry 0000026d
swap_free: Bad swap file entry fe000000000000
kernel BUG at include/linux/mm.h:275!
Kernel addresses on the stack:
 [<0000000010105680>] show_trace+0x40/0x108
 [<00000000101054cc>] dump_stack+0x24/0x38
 [<0000000010182948>] free_page_and_swap_cache+0xd0/0x130
 [<0000000010172358>] zap_pte_range+0x220/0x288
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<00000000101724a8>] zap_pmd_range+0xe8/0x108
 [<0000000010172580>] unmap_page_range+0xb8/0x298
 [<00000000101728d0>] unmap_vmas+0x170/0x3a8
 [<0000000010178abc>] exit_mmap+0x8c/0x2d0
 [<0000000010279b90>] put_io_context+0xc8/0xd8
 [<000000001013b8b4>] mmput+0xa4/0xe0
 [<00000000101415b8>] do_exit+0x250/0x580
 [<0000000010199ab8>] do_coredump+0x178/0x248
 [<0000000010141a40>] do_group_exit+0xe8/0x110
 [<000000001014d620>] get_signal_to_deliver+0x1b0/0x530
 [<0000000010112d6c>] do_signal+0x3c/0x324
 [<0000000010139174>] schedule+0x3f4/0x7c8
 [<000000001010c2c8>] intr_do_signal+0x2c/0x34

swap_free: Bad swap file entry fe000000000000
kernel BUG at include/linux/mm.h:275!
Kernel addresses on the stack:
 [<0000000010105680>] show_trace+0x40/0x108
 [<00000000101054cc>] dump_stack+0x24/0x38
 [<0000000010182948>] free_page_and_swap_cache+0xd0/0x130
 [<0000000010172358>] zap_pte_range+0x220/0x288
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<00000000101724a8>] zap_pmd_range+0xe8/0x108
 [<0000000010172580>] unmap_page_range+0xb8/0x298
 [<00000000101728d0>] unmap_vmas+0x170/0x3a8
 [<0000000010178abc>] exit_mmap+0x8c/0x2d0
 [<0000000010279b90>] put_io_context+0xc8/0xd8
 [<000000001013b8b4>] mmput+0xa4/0xe0
 [<00000000101415b8>] do_exit+0x250/0x580
 [<0000000010199ab8>] do_coredump+0x178/0x248
 [<0000000010141a40>] do_group_exit+0xe8/0x110
 [<000000001014d620>] get_signal_to_deliver+0x1b0/0x530
 [<0000000010112d6c>] do_signal+0x3c/0x324
 [<0000000010139174>] schedule+0x3f4/0x7c8
 [<000000001010c2c8>] intr_do_signal+0x2c/0x34

swap_free: Bad swap file entry 2800000000000001
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 00132760
swap_free: Bad swap file entry 1000000000000008
kernel BUG at include/linux/mm.h:275!
Kernel addresses on the stack:
 [<0000000010105680>] show_trace+0x40/0x108
 [<00000000101054cc>] dump_stack+0x24/0x38
 [<0000000010182948>] free_page_and_swap_cache+0xd0/0x130
 [<0000000010172358>] zap_pte_range+0x220/0x288
 [<00000000101724a8>] zap_pmd_range+0xe8/0x108
 [<0000000010172580>] unmap_page_range+0xb8/0x298
 [<000000001013a97c>] __cond_resched+0x2c/0x48
 [<00000000101728d0>] unmap_vmas+0x170/0x3a8
 [<0000000010178abc>] exit_mmap+0x8c/0x2d0
 [<0000000010279b90>] put_io_context+0xc8/0xd8
 [<000000001013b8b4>] mmput+0xa4/0xe0
 [<00000000101415b8>] do_exit+0x250/0x580
 [<0000000010199ab8>] do_coredump+0x178/0x248
 [<0000000010141a40>] do_group_exit+0xe8/0x110
 [<000000001014d620>] get_signal_to_deliver+0x1b0/0x530
 [<0000000010112d6c>] do_signal+0x3c/0x324
 [<0000000010139174>] schedule+0x3f4/0x7c8
 [<000000001010c2c8>] intr_do_signal+0x2c/0x34

swap_free: Bad swap file entry 00132510
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 8800000000000000
swap_free: Bad swap file entry 000001b8
swap_free: Bad swap file entry 000001b8
swap_free: Bad swap file entry 000001b4
swap_free: Bad swap file entry 800000000000000
kernel BUG at include/linux/mm.h:275!
Kernel addresses on the stack:
 [<0000000010105680>] show_trace+0x40/0x108
 [<00000000101054cc>] dump_stack+0x24/0x38
 [<0000000010182948>] free_page_and_swap_cache+0xd0/0x130
 [<0000000010172358>] zap_pte_range+0x220/0x288
 [<00000000101724a8>] zap_pmd_range+0xe8/0x108
 [<0000000010172580>] unmap_page_range+0xb8/0x298
 [<000000001013a97c>] __cond_resched+0x2c/0x48
 [<00000000101728d0>] unmap_vmas+0x170/0x3a8
 [<0000000010178abc>] exit_mmap+0x8c/0x2d0
 [<0000000010279b90>] put_io_context+0xc8/0xd8
 [<000000001013b8b4>] mmput+0xa4/0xe0
 [<00000000101415b8>] do_exit+0x250/0x580
 [<0000000010199ab8>] do_coredump+0x178/0x248
 [<0000000010141a40>] do_group_exit+0xe8/0x110
 [<000000001014d620>] get_signal_to_deliver+0x1b0/0x530
 [<0000000010112d6c>] do_signal+0x3c/0x324
 [<0000000010139174>] schedule+0x3f4/0x7c8
 [<000000001010c2c8>] intr_do_signal+0x2c/0x34

swap_free: Bad swap file entry 6000000000000000
swap_free: Bad swap file entry 7000000000080000
swap_free: Bad swap file entry 00132b20
swap_free: Bad swap file entry 00000002
swap_free: Bad swap file entry 7000000000080000
swap_free: Bad swap file entry 800000000000000
swap_free: Bad swap file entry 008f0844
swap_free: Bad swap file entry 00000005
swap_free: Bad swap file entry 003ccbf0
swap_free: Bad swap file entry 008f0890
swap_free: Bad swap file entry 0000026d
swap_free: Bad swap file entry fe000000000000
swap_free: Bad swap file entry fe000000000000
swap_free: Bad swap file entry 008f0890
swap_free: Bad swap file entry 2800000000000001
swap_free: Bad swap file entry 800000000000000
kernel BUG at include/linux/mm.h:275!
Kernel addresses on the stack:
 [<0000000010105680>] show_trace+0x40/0x108
 [<00000000101054cc>] dump_stack+0x24/0x38
 [<0000000010182948>] free_page_and_swap_cache+0xd0/0x130
 [<0000000010172358>] zap_pte_range+0x220/0x288
 [<00000000101724a8>] zap_pmd_range+0xe8/0x108
 [<0000000010172580>] unmap_page_range+0xb8/0x298
 [<000000001013a97c>] __cond_resched+0x2c/0x48
 [<00000000101728d0>] unmap_vmas+0x170/0x3a8
 [<0000000010178abc>] exit_mmap+0x8c/0x2d0
 [<0000000010279b90>] put_io_context+0xc8/0xd8
 [<000000001013b8b4>] mmput+0xa4/0xe0
 [<00000000101415b8>] do_exit+0x250/0x580
 [<0000000010199ab8>] do_coredump+0x178/0x248
 [<0000000010141a40>] do_group_exit+0xe8/0x110
 [<000000001014d620>] get_signal_to_deliver+0x1b0/0x530
 [<0000000010112d6c>] do_signal+0x3c/0x324
 [<0000000010139174>] schedule+0x3f4/0x7c8
 [<000000001010c2c8>] intr_do_signal+0x2c/0x34

swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 00132760
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 00132510
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 8800000000000000
swap_free: Bad swap file entry 000001b8
swap_free: Bad swap file entry 000001b8
swap_free: Bad swap file entr001b4
swap_free: Bad swap file entry 800000000000000
swap_free: Bad swap file entry 008f0890
swap_free: Bad swap file entry 6000000000000000
swap_free: Bad swap file entry 7000000000080000
swap_free: Bad swap file entry 00132b20
swap_free: Bad swap file entry 00000002
swap_free: Bad swap file entry 7000000000080000
swap_free: Bad swap file entry 7800000000080000
swap_free: Bad swap file entry 00132b20
swap_free: Bad swap file entry 008f0890
swap_free: Bad swap file entry 008f0844
swap_free: Bad swap file entry 00000005
swap_free: Bad swap file entry 003ccbf0
swap_free: Bad swap file entry 0000026d
swap_free: Bad swap file entry fe000000000000
swap_free: Bad swap file entry fe000000000000
swap_free: Bad swap file entry 2800000000000001
swap_free: Bad swap file entry 800000000000000
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 10000000008
swap_free: Bad swap file entry 00132760
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 00132510
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 8800000000000000
swap_free: Bad swap file entry 000001b8
swap_free: Bad swap file entry 000001b8
swap_free: Bad swap file entry 000001b4
swap_free: Bad swap file entry 800000000000000
swap_free: Bad swap file entry 6000000000000000
swap_free: Bad swap file entry 7000000000080000
swap_free: Bad swap file entry 00132b20
swap_free: Bad swap file entry 008f089b
swap_free: Bad swap file entry 00000002
swap_free: Bad swap file entry 7000000000080000
swap_free: Bad swap file entry 800000000000000
swap_free: Bad swap file entry 008f0844
swap_free: Bad swap file entry 00000005
swap_free: Bad swap file entry 003ccbf0
swap_free: Bad swap file entry 0000026d
swap_free: Badp file entry fe000000000000
swap_free: Bad swap file entry fe000000000000
swap_free: Bad swap file entry 2800000000000001
swap_free: Bad swap file entry 800000000000000
swap_free: Bad swap file entry 008f089f
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 00132760
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 00132510
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 8800000000000000
swap_free: Bad swap file entry 000001b8
swap_free: Bad swap file entry 000001b8
swap_free: Bad swap file entry 000001b4
swap_free: Bad swap file entry 800000000000000
swap_free: Bad swap file entry 6000000000000000
swap_free: Bad swap file entry 7000000000080000
swap_free: Bad swap file entry 00132b20
swap_free: Bad swap file entry 00000002
swap_free: Bad swap file entry 7000000000080000
swap_free: Bad swap file entry 7800000000080000
swap_free: Bad swap file entry 00132e60
swap_free: Bad swap file entry 008f0844
swap_free: Bad swap file entry 00000005
swap_free: Bad swle entry 003ccbf0
swap_free: Bad swap file entry 008f089f
swap_free: Bad swap file entry 0000026d
swap_free: Bad swap file entry fe000000000000
swap_free: Bad swap file entry fe000000000000
swap_free: Bad swap file entry 008f089f
swap_free: Bad swap file entry 2800000000000001
swap_free: Bad swap file entry 800000000000000
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 00132760
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 00132510
swap_free: Bad swap file entry 1000000000000008
swap_free: Bad swap file entry 8800000000000000
swap_free: Bad swap file entry 000001b8
swap_free: Bad swap file entry 000001b8
swap_freed swap file entry 000001b4
swap_free: Bad swap file entry 800000000000000
swap_free: Bad swap file entry 008f089f
swap_free: Bad swap file entry 6000000000000000
swap_free: Bad swap file entry 7000000000080000
swap_free: Bad swap file entry 00132b20
swap_free: Bad swap file entry 00000002
swap_free: Bad swap file entry 7000000000080000

Wichert.

-- 
Wichert Akkerman <wichert@wiggy.net>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.



From - Thu Nov 08 21:31:06 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] glibc-2.3.3: a warning with gcc-3.3 become an
	error with gcc-3.5
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>
>Show me a patch.
>
something like this perhaps?

--- ./feupdateenv.c.orig	2004-03-02 15:21:25.959085856 +0100
+++ ./feupdateenv.c	2004-03-02 07:53:27.938166120 +0100
@@ -28,11 +28,16 @@
   /* Get the current exception status. */
   __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
   sw[0] &= FE_ALL_EXCEPT;
-  envp->__status_word = envp->__status_word | sw[0];
+/*  envp->__status_word = envp->__status_word | sw[0]; */
   
   /* Install new environment.  */
   fesetenv (envp);
 
+  /* Raise the safed exception.  Incidently for us the implementation
+     defined format of the values in objects of type fexcept_t is the
+     same as the ones specified using the FE_* constants.  */
+  feraiseexcept (sw[0]);
+
   /* Success.  */
   return 0;
 }

Thanks in advance for attention,
    Joel


----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
http://reg.tiscali.be/default.asp?lg=fr





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Subject: Re: [parisc-linux] glibc-2.3.3: a warning with gcc-3.3 become an
	error with gcc-3.5
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Xref: news.gmane.org gmane.linux.ports.parisc:20972

On Tue, Mar 02, 2004 at 03:59:34PM +0100, Joel Soete wrote:
> +  /* Raise the safed exception.  Incidently for us the implementation

"saved exception" or "safe exception"?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] experimental patch to Fix CCIO virtual merging
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Xref: news.gmane.org gmane.linux.ports.parisc:20973

The algorithm the ccio currently uses to do virtual merging is rather
non-optimal.  The attached patch fixes it to merge virtually whenever
the adjacent I/O pieces begin and end on a page boundary, which produces
much better merging.

This code also found a bug in the ccio pdir allocation which trips when
the number of pages requested == BITS_PER_LONG.  I've put in a temporary
work around, but Grant should be doing a better fix.

Just a warning:  This patch affects the I/O mapping stream.  If you find
a bug in it, it will likely be *after* it has trashed your root drive...

I've also left in all the debug tests and printks.

James

===== drivers/parisc/ccio-dma.c 1.15 vs edited =====
--- 1.15/drivers/parisc/ccio-dma.c	Tue Feb  3 23:42:34 2004
+++ edited/drivers/parisc/ccio-dma.c	Tue Mar  2 12:01:09 2004
@@ -41,6 +41,7 @@
 #define PCI_DEBUG
 #include <linux/pci.h>
 #undef PCI_DEBUG
+#include <linux/reboot.h>
 
 #include <asm/byteorder.h>
 #include <asm/cache.h>		/* for L1_CACHE_BYTES */
@@ -343,7 +344,10 @@
 	ASSERT((pages_needed * IOVP_SIZE) <= DMA_CHUNK_SIZE);
 	ASSERT(pages_needed <= BITS_PER_LONG);
 
-	mask = ~(~0UL >> pages_needed);
+	if(pages_needed == BITS_PER_LONG)
+		mask = ~0UL;
+	else
+		mask = ~(~0UL >> pages_needed);
      
 	DBG_RES("%s() size: %d pages_needed %d mask 0x%08lx\n", 
 		__FUNCTION__, size, pages_needed, mask);
@@ -877,12 +881,13 @@
 {
 	struct scatterlist *dma_sg = startsg;	/* pointer to current DMA */
 	int n_mappings = 0;
-	u64 *pdirp = 0;
 	unsigned long dma_offset = 0;
+	u64 *pdirp = NULL;
 
-	dma_sg--;
 	while (nents-- > 0) {
-		int cnt = sg_dma_len(startsg);
+		unsigned long vaddr;
+		long size;
+
 		sg_dma_len(startsg) = 0;
 
 		DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
@@ -890,44 +895,46 @@
 			   sg_virt_addr(startsg), startsg->length
 		);
 
+
 		/*
 		** Look for the start of a new DMA stream
 		*/
-		if(sg_dma_address(startsg) & PIDE_FLAG) {
+		
+		if (sg_dma_address(startsg) & PIDE_FLAG) {
 			u32 pide = sg_dma_address(startsg) & ~PIDE_FLAG;
+
 			dma_offset = (unsigned long) pide & ~IOVP_MASK;
-			sg_dma_address(startsg) = 0;
-			dma_sg++;
+			if (pdirp)
+				dma_sg++;
+			n_mappings++;
 			sg_dma_address(dma_sg) = pide;
 			pdirp = &(ioc->pdir_base[pide >> IOVP_SHIFT]);
-			n_mappings++;
 		}
-
-		/*
-		** Look for a VCONTIG chunk
-		*/
-		if (cnt) {
-			unsigned long vaddr = sg_virt_addr(startsg);
-			ASSERT(pdirp);
-
-			/* Since multiple Vcontig blocks could make up
-			** one DMA stream, *add* cnt to dma_len.
-			*/
-			sg_dma_len(dma_sg) += cnt;
-			cnt += dma_offset;
-			dma_offset=0;	/* only want offset on first chunk */
-			cnt = ROUNDUP(cnt, IOVP_SIZE);
+		
+		if (unlikely(pdirp == NULL)) {
+			printk("NULL PDIRP AT OFFSET %d\n",
+			       n_mappings);
+			dump_stack();
+			machine_restart(NULL);
+		}
+		
+		vaddr = sg_virt_addr(startsg);
+		sg_dma_len(dma_sg) += startsg->length;
+		size = startsg->length + dma_offset;
+		if (unlikely(size > IOVP_SIZE)) {
+			printk("VIRTUAL CHUNK has size 0x%lx\n",
+			       size);
+		}
 #ifdef CONFIG_PROC_FS
-			ioc->msg_pages += cnt >> IOVP_SHIFT;
+		ioc->msg_pages += startsg->length >> IOVP_SHIFT;
 #endif
-			do {
-				ccio_io_pdir_entry(pdirp, KERNEL_SPACE, 
-						   (void *)vaddr, hint);
-				vaddr += IOVP_SIZE;
-				cnt -= IOVP_SIZE;
-				pdirp++;
-			} while (cnt > 0);
-		}
+		do {
+			ccio_io_pdir_entry(pdirp, KERNEL_SPACE, 
+					   (void *)vaddr, hint);
+			vaddr += IOVP_SIZE;
+			size -= IOVP_SIZE;
+			pdirp++;
+		} while(size > 0);
 		startsg++;
 	}
 	return(n_mappings);
@@ -946,10 +953,7 @@
 static CCIO_INLINE int
 ccio_coalesce_chunks(struct ioc *ioc, struct scatterlist *startsg, int nents)
 {
-	struct scatterlist *vcontig_sg;    /* VCONTIG chunk head */
-	unsigned long vcontig_len;         /* len of VCONTIG chunk */
-	unsigned long vcontig_end;
-	struct scatterlist *dma_sg;        /* next DMA stream head */
+	struct scatterlist *contig_sg;	   /* contig chunk head */
 	unsigned long dma_offset, dma_len; /* start/len of DMA stream */
 	int n_mappings = 0;
 
@@ -958,9 +962,8 @@
 		/*
 		** Prepare for first/next DMA stream
 		*/
-		dma_sg = vcontig_sg = startsg;
-		dma_len = vcontig_len = vcontig_end = startsg->length;
-		vcontig_end += sg_virt_addr(startsg);
+		contig_sg = startsg;
+		dma_len = startsg->length;
 		dma_offset = sg_virt_addr(startsg) & ~IOVP_MASK;
 
 		/* PARANOID: clear entries */
@@ -972,7 +975,10 @@
 		** it's always looking one "ahead".
 		*/
 		while(--nents > 0) {
-			unsigned long startsg_end;
+			unsigned long prevstartsg_end, startsg_end;
+
+			prevstartsg_end = sg_virt_addr(startsg) +
+				startsg->length;
 
 			startsg++;
 			startsg_end = sg_virt_addr(startsg) + 
@@ -992,31 +998,15 @@
 				break;
 
 			/*
-			** Append the next transaction?
+			** Next see if we can append the next chunk (i.e.
+			** it must end on one page and begin on another
 			*/
-			if (vcontig_end == sg_virt_addr(startsg)) {
-				vcontig_len += startsg->length;
-				vcontig_end += startsg->length;
-				dma_len     += startsg->length;
-				continue;
+			if ((prevstartsg_end & ~PAGE_MASK) != (sg_virt_addr(startsg) & ~PAGE_MASK)) {
+				printk("IOMMU FORBIDDING MERGE OF 0x%lx and 0x%lx\n", prevstartsg_end, sg_virt_addr(startsg));
+				break;
 			}
-
-			/*
-			** Not virtually contigous.
-			** Terminate prev chunk.
-			** Start a new chunk.
-			**
-			** Once we start a new VCONTIG chunk, dma_offset
-			** can't change. And we need the offset from the first
-			** chunk - not the last one. Ergo Successive chunks
-			** must start on page boundaries and dove tail
-			** with its predecessor.
-			*/
-			sg_dma_len(vcontig_sg) = vcontig_len;
-
-			vcontig_sg = startsg;
-			vcontig_len = startsg->length;
-			break;
+			
+			dma_len     += startsg->length;
 		}
 
 		/*
@@ -1024,9 +1014,9 @@
 		** Terminate last VCONTIG block.
 		** Allocate space for DMA stream.
 		*/
-		sg_dma_len(vcontig_sg) = vcontig_len;
+		sg_dma_len(contig_sg) = dma_len;
 		dma_len = ROUNDUP(dma_len + dma_offset, IOVP_SIZE);
-		sg_dma_address(dma_sg) =
+		sg_dma_address(contig_sg) =
 			PIDE_FLAG 
 			| (ccio_alloc_range(ioc, (dma_len >> IOVP_SHIFT)) << IOVP_SHIFT)
 			| dma_offset;
@@ -1053,6 +1043,8 @@
 	int coalesced, filled = 0;
 	unsigned long flags;
 	unsigned long hint = hint_lookup[(int)direction];
+	unsigned long prev_len = 0, current_len = 0;
+	int i;
 	
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
@@ -1067,6 +1059,9 @@
 		sg_dma_len(sglist) = sglist->length;
 		return 1;
 	}
+
+	for(i = 0; i < nents; i++)
+		prev_len += sglist[i].length;
 	
 	spin_lock_irqsave(&ioc->res_lock, flags);
 
@@ -1096,8 +1091,31 @@
 
 	spin_unlock_irqrestore(&ioc->res_lock, flags);
 
-	ASSERT(coalesced == filled);
+	if (unlikely(coalesced != filled)) {
+		printk("OOPS coalesced = %d, filled = %d\n", coalesced,
+		       filled);
+		BUG();
+	}
 	DBG_RUN_SG("%s() DONE %d mappings\n", __FUNCTION__, filled);
+
+	for (i = 0; i < filled; i++)
+		current_len += sg_dma_len(sglist + i);
+
+	if (unlikely(current_len != prev_len)) {
+		printk("OOPS current len = %ld, prev len = %ld\n", current_len,
+		       prev_len);
+		BUG();
+	}
+
+	if (unlikely(filled != 1)) {
+		printk("IOMMU merge length %ld, segments %d\n",
+		       current_len, filled);
+		for(i = 0; i < filled; i++) {
+			printk(" %d: addr 0x%lx, len 0x%x\n", i,
+			       (unsigned long)sg_dma_address(sglist + i),
+			       (unsigned int)sg_dma_len(sglist + i));
+		}
+	}
 
 	return filled;
 }





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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc-2.3.3: a warning with gcc-3.3 become an
	error with gcc-3.5
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To: Joel Soete <soete.joel@tiscali.be>
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Xref: news.gmane.org gmane.linux.ports.parisc:20974

Joel,

Could you lookup the C99 specification please?

> --- ./feupdateenv.c.orig	2004-03-02 15:21:25.959085856 +0100
> +++ ./feupdateenv.c	2004-03-02 07:53:27.938166120 +0100
> @@ -28,11 +28,16 @@
>    /* Get the current exception status. */
>    __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
>    sw[0] &= FE_ALL_EXCEPT;
> -  envp->__status_word = envp->__status_word | sw[0];
> +/*  envp->__status_word = envp->__status_word | sw[0]; */

This is required to set the flags. Please review the specfications.

>    /* Install new environment.  */
>    fesetenv (envp);
>  
> +  /* Raise the safed exception.  Incidently for us the implementation
> +     defined format of the values in objects of type fexcept_t is the
> +     same as the ones specified using the FE_* constants.  */
> +  feraiseexcept (sw[0]);
> +

AFAIK, this is not correct, the spec says that it will be an OR of the
raised exceptions, e.g. an OR of the raised flags. 

Calling feraiseexcept could fault the program.

>    /* Success.  */
>    return 0;
>  }

c.



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From: Wichert Akkerman <wichert@wiggy.net>
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Subject: [parisc-linux] Re: another kernel oops
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Xref: news.gmane.org gmane.linux.ports.parisc:20975

This eems to be a common one: I previously had pretty much the same
oops with jejb's kernel and it hit again with the kernel tausq compiled
for me.

Wichert.

Stack Dump:
 0000000046b6d178:  0000000046b6d178 0800000000000000 000e5ed0000e5ee4 0000000046b6cc80
 0000000046b6d158:  0000000000000000 00000000104652a0 000000000000001a 00000000000002b3
 0000000046b6d138:  000e5e88000e5e94 000000001010618c 000e5e78000e5e84 0800000000000000
 0000000046b6d118:  000e5e68000e5e74 0800000000000000 0000000040019000 00000000446a4000
 0000000046b6d0f8:  000000004b64d0c8 000000008c1301c0 00000000104652a0 0000000000000001
 0000000046b6d0d8:  00000000104652a0 000000008c1301c0 000000008ec174c0 0000000000000000
 0000000046b6d0b8:  000e5e04000e5e14 00000000101758f8 000e5df0000e5e00 0800000000000000
 0000000046b6d098:  000e5ddc000e5dec 0800000000000000 000e5dc8000e5dd8 0800000000000000
 0000000046b6d078:  0000000000000000 00000000104652a0 00000000104652a0 0000000000038022
 0000000046b6d058:  0000000000000000 0800000000000000 0000000040019000 00000000446a4000
 0000000046b6d038:  000000008ec17480 000000008c1301c0 00000000104652a0 0000000000000001
 0000000046b6d018:  00000000104652a0 000000000000000f 000000008ec174c0 0000000046b6c588
 0000000046b6cff8:  0000000086d44a28 0000000086d449c0 000000008f3162f8 0000000046b6c880
 0000000046b6cfd8:  0000000046b6c368 000000008c1301c0 00000001104652a0 0000000000000001
 0000000046b6cfb8:  0049424d3836362f 000000001010c094 001870b800000000 00186fc200000000
 0000000046b6cf98:  00000001000000bf 00186fb000186fb9 736f000000000051 2f49424d3836362e
 0000000046b6cf78:  69622f67636f6e76 4c002f7573722f6c 00494e5445524e41 49424d3836362f2f
 0000000046b6cf58:  0000000000187060 00186f7200000000 00000001000000be 00186f6000186f69
 0000000046b6cf38:  0000000000000051 001871a000000000 00186f0800186de0 00000000000002b3
 0000000046b6cf18:  0000000000000000 000000000f4010d5 0000000000000006 000000000021
 0000000046b6cef8:  0000000046b6c880 000000008c1301c0 000000008ec174c0 00000000104652a0
 0000000046b6ced8:  0000000010232a94 0000000010232a90 0000000000000000 0000000000000000
 0000000046b6ceb8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 0000000046b6ce98:  0000000000020980 0000000000000000 0000000000020980 0000000000020980
 0000000046b6ce78:  000000000000014a 0000000010189778 00000000f000028c 0000000000000802
 0000000046b6ce58:  0000000010471020 0000000013251000 0000000000000000 0000000113275e80
 0000000046b6ce38:  0000000000000000 0000000000000000 0000000010525d40 0000000000000000
 0000000046b6ce18:  00000000104e6ec0 000000008fbf3178 00000000104652a0 0000000010525d40
 0000000046b6cdf8:  ffffffffffffffff 0000000010187a28 0000000000000802 00000000104652a0
 0000000046b6cdd8:  0000000013276000 0000000000000000 0000000000000802 000000000000
 0000000046b6cdb8:  00000000104f8258 000000003ccbf700 0000000000000802 00000000104652a0
 0000000046b6cd98:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 0000000046b6cd78:  0000000000000000 0000000046b6cc80 0000000046b6cc70 fffffffffffffffb
 0000000046b6cd58:  00000000104652a0 00000000000002b3 0000000000038022 0000000000001000
 0000000046b6cd38:  000000000000003f 0000000000000006 00000000000000eb 0000000000000002
 0000000046b6cd18:  00000000000002ab 0000000013275e80 00000000faf01710 0000000000000000
 0000000046b6ccf8:  0000000000000002 0000000000000001 0000000000000000 0000000046b6c788
 0000000046b6ccd8:  0000000000038022 00000000faf01a08 000000008f2b1838 000000008f2b1838
 0000000046b6ccb8:  0000000000000000 0000000000038022 00000000104652a0 00000000104652a0
 0000000046b6cc98:  0000000000000000 0000000010160098 0000000010513108 000000ff0806
 0000000046b6cc78:  00000000856c8578 00000000101ea820 00000000104652a0 000000008f2d2138
 0000000046b6cc58:  0000000000001000 0000000000000000 00000000104652a0 00000000103dd058
 0000000046b6cc38:  0000000078c19280 0000000010154534 00186da800000000 000000001037a228
 0000000046b6cc18:  0000000046b6c988 00000000104652a0 0000000046b6cac0 00000000104652a0
 0000000046b6cbf8:  00000000104652a0 000000001018abec 00000000104f8258 000000008f52f400
 0000000046b6cbd8:  000000008f6ce000 0000000000000007 00000000104652a0 000000000001972c
 0000000046b6cbb8:  0000000000000007 0000000046b6c788 00000000faf01a08 0000000000000000
 0000000046b6cb98:  00000000104652a0 000000008fffa940 0000000000038022 0000000000001000
 0000000046b6cb78:  0000000000000005 000000001018c91c 0000000000000000 0000000046b6cb48
 0000000046b6cb58:  0000000000000000 00000000104652a0 0000000000000000 00000000104652a0 0000000046b6cb38:  000000008f2d2138 0000000010148f80 0000000000000000 00000000104652a0
 0000000046b6cb18:  0000000000001000 000000008fffa940 0000000000038022 00000000104652a0
 0000000046b6caf8:  00000000104652a0 000000001018ca14 0000000000000000 00000000104652a0
 0000000046b6cad8:  0000000046b6c480 0000000000000002 00000000402a1000 0000000046b6c9c8
 0000000046b6cab8:  0000000000000000 0000000000000000 000000008f9d9c60 0000000000000001
 0000000046b6ca98:  0000000000000000 000000008f9d9c60 0000000000000001 0000000046b6c788
 0000000046b6ca78:  00000000856c8c00 00000000101d9530 00000000104652a0 000000008f2d2478
 0000000046b6ca58:  00000000faf01688 0000000046b6c480 0000000000000000 0000000000000001
 0000000046b6ca38:  0000000013283400 0000000010149034 00000000104652a0 000000008f2d2230
 0000000046b6ca18:  0000000000000000 0000000000000000 000000008f6c8e00 00000000104652a0
00000046b6c9f8:  ffffffffffffffff 00000000101e8cd8 0000000000000000 0000000046b6c9c8
 0000000046b6c9d8:  0000000046b6c9c8 0000000046b6c9c8 0000000000000000 000000008f9d9c60
 0000000046b6c9b8:  000000008f9d9c60 0000000046b6c788 000000008ca8f000 00000000104652a0
 0000000046b6c998:  000000008f2b1838 00000000faf01a08 00000000104652a0 0000000000000101
 0000000046b6c978:  00000000402a1000 00000000101da7c4 0000000046b6c958 0000000046b6c958
 0000000046b6c958:  0000000046b6c958 0000000010509e30 000000008f9d9c60 000000008f6c8e00
 0000000046b6c938:  00000000104652a0 000000008f2b1838 000000008ca8f000 0000000046b6c208
 0000000046b6c918:  000000008ca8f015 00000000faf01a08 00000000104652a0 00000000104652a0
 0000000046b6c8f8:  000000008f3162f8 00000000101e8dfc 0000000086d44a28 0000000000000000
 0000000046b6c8d8:  00000000103e3248 00000000119641f0 00000000104652a0 00000000104652a0
 0000046b6c8b8:  00000000119641f0 00000000104652a0 000000008f9d9c60 000000008f2b1838
 0000000046b6c898:  000000008f2b1838 000000008ca8f000 0000000046b6c208 000000008ca8f015
 0000000046b6c878:  0000000078c192e8 00000000101da8d4 0000000000000001 0000000000000000
 0000000046b6c858:  0000000011f72a60 00000000103e3248 00000000104652a0 00000000103e3f28
 0000000046b6c838:  0000000000000001 0000000000000040 0000000040298000 0000000040000000
 0000000046b6c818:  00000000402a1000 00000000104652a0 00000000104652a0 0000000000000000
 0000000046b6c7f8:  0000000046b6c188 00000000101e022c 00000000104652a0 000000000001a000
 0000000046b6c7d8:  00000000104652a0 000000000001a000 0000000040287000 0000000040287000
 0000000046b6c7b8:  000000008f9d9c60 00000000104652a0 0000000000000000 00000000039367e0
 0000000046b6c798:  0000000000000007 0000000000000600 0000000000000000 000000008f2b1838
 0000046b6c778:  ffffffffffffffff 00000000101da9e0 0000000000000802 0000000000000000
 0000000046b6c758:  0000000000000040 0000000000000000 ffffffffffff6fff 0000000040298000
 0000000046b6c738:  00000000402a1000 00000000103e3248 00000000000002d5 0000000000000000
 0000000046b6c718:  000000008f2b1838 0000000000000001 00000000104652a0 000000008f52f400
 0000000046b6c6f8:  0000000000000003 00000000101b2d0c 0000000000000000 0000000078c19280
 0000000046b6c6d8:  000000001300d1e0 000000007f406b05 00000000104652a0 0000000010000000
 0000000046b6c6b8:  00000000104652a0 0000000000000000 00000000104652a0 000000004bb96ac0
 0000000046b6c698:  000000008f2b1838 00000000104652a0 000000008f2b1898 0000000000000001
 0000000046b6c678:  0000000000000003 00000000101ab960 0000000000000000 00000000402778e8
 0000000046b6c658:  000000001300d1e0 0000000000000000 0000000046b6c208 00000000104652a0
 000000006c638:  0000000046b6c488 0000000046b6c498 0000000010525c40 000000008ca8f015
 0000000046b6c618:  00000000faf01a08 00000000104652a0 0000000000000101 0000000000000000
 0000000046b6c5f8:  ffffffffffffffff 000000001019bdfc 0000000000000802 00000000104652a0
 0000000046b6c5d8:  0000000013276000 0000000000000000 0000000000000802 00000000104652a0
 0000000046b6c5b8:  000000008f2b1838 000000008f4eb180 00000000104652a0 0000000003c12cd8
 0000000046b6c598:  000000004044fb35 0000000003c12cd8 000000004044fb35 000000008ca8f000
 0000000046b6c578:  000000008ec17480 000000001019c248 00000000104652a0 0000000000000000
 0000000046b6c558:  00000000104652a0 0000000000000000 0000000046b6c188 00000000104652a0
 0000000046b6c538:  0000000046b6c388 0000000046b6c398 0000000010525d40 000000008ca8f012
 0000000046b6c518:  0000000000000000 00000000104652a0 0000000046b6c188 000000008fa4b180
 0000000046b6c4f8:  000000000002 0000000013279380 0000000046b6c208 00000000104652a0
 0000000046b6c4d8:  00000000104652a0 000000008ca8f000 0000000000033030 0000000000000801
 0000000046b6c4b8:  00000000faf01a08 0000000000000000 0000000000000004 0000000caa4f3659
 0000000046b6c498:  000000008ca8f009 000000008f4eb180 0000000010525c40 0000000000000000
 0000000046b6c478:  ffffffffffffffff 000000001019cf94 000000008ec17480 000000004bb96a40
 0000000046b6c458:  0000000000100077 00000000104652a0 0000000000000000 0000000040298000
 0000000046b6c438:  00000000373fd008 0000000000000000 0000000000000001 0000000000000800
 0000000046b6c418:  00000000104652a0 0000000046b6c208 00000000104652a0 0000000000000800
 0000000046b6c3f8:  000000004012d297 000000001019e07c 0000000046b6c188 00000000104652a0
 0000000046b6c3d8:  00000000104652a0 000000008ca8f000 0000000000000000 0000000000005fa8
 0000000046b6c3b8:  000000000000 000000004001a270 00000000402778e8 0000000d05f08f17
 0000000046b6c398:  000000008ca8f005 000000008fa4b180 0000000010525d40 0000000040015bc8
 0000000046b6c378:  0000000000008e58 000000001019cf94 0000000000000800 00000000104652a0
 0000000046b6c358:  000000008ca8f000 0000000000000000 0000000000000800 0000000000033030
 0000000046b6c338:  000000000000000d 00000000faf01a08 0000000000033030 000000004001e3e4
 0000000046b6c318:  00000000faf01c10 fffffffffffffffe 0000000046b6c188 00000000104652a0
 0000000046b6c2f8:  0000000000000002 000000001018783c 0000000010509df0 0000000000000011
 0000000046b6c2d8:  00000000104652a0 000000000000000a 000000000800000e 0000000000000002
 0000000046b6c2b8:  00000000b0000000 0000000046b6c298 0000000046b6c298 0000000046b6c298
 0000000046b6c298:  0000000000033200 0000000000000000 fffffffffffffff4 000000004001e3e4
 0000000046b6c278:  736f000000000000000001019b354 69622f67636f6e76 0000000000000000
 0000000046b6c258:  00000000104652a0 00000000faf00ef8 0000000040199e54 0000000000000003
 0000000046b6c238:  00000000104652a0 0000080100000000 0000010100000001 00000000faf01cc0
 0000000046b6c218:  ffffffff8ca8f000 0000000010525c40 000000008f4eb280 0000000000000000
 0000000046b6c1f8:  00000000400276e4 0000000010187ec8 0000000000000098 0000000000033200
 0000000046b6c1d8:  00000000400276e4 00000000000331b0 00000000400156ec ffffffffffffffff
 0000000046b6c1b8:  0000000040028d90 00000000400276e4 0000040100000001 00000000faf01cc0
 0000000046b6c198:  00000000400276e4 0000000000000000 00000000400156ec 00000000ffffffff

Kernel addresses on the stack:
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<0000000010187a28>] dentry_open+0x1b0/0x2c0
 [<00000000101ea820>] journal_dirty_metadata+0x218/0x358
 [<000000001018abec>] __find_get_block_slow+0x44/0x238
 [<000000001018c91c>] __find_get_block+0xc4/0x188
 [<000000001018ca14>] __getblk+0x34/0x78
 [<00000000101d9530>] ext3_get_inode_loc+0x78/0x428
 [<00000000101e8cd8>] start_this_handle+0x2d8/0x3d0
 [<00000000101da7c4>] ext3_reserve_inode_write+0x4c/0x130
 [<00000000101e8dfc>] new_handle+0x2c/0x70
 [<00000000101da8d4>] ext3_mark_inode_dirty+0x2c/0x70
 [<00000000101e022c>] ext3_journal_start+0x84/0x90
 [<00000000101da9e0>] ext3_dirty_inode+0xc8/0xd0
 [<00000000101b2d0c>] __mark_inode_dirty+0x4c/0x120
 [<00000000101ab960>] update_atime+0xe8/0x130
 [<000000001019bdfc>] do_lookup+0x3c/0x100
 [<000000001019c248>] link_path_walk+0x388/0xd30
 [<000000001019cf94>] path_lookup+0xdc/0x2e0
 [<000000001019e07c>] open_namei+0x614/0x630
 [<000000001019cf94>] path_lookup+0xdc/0x2e0
 [<000000001018783c>] filp_open+0x54/0x90
 [<000000001019b354>] getname+0x3c/0x130
 [<0000000010187ec8>] sys_open+0x78/0xf0
 [<000000001010ce4c>] syscall_exit+0x0/0x14
 [<000000001010c074>] intr_return+0x0/0x14


Kernel Fault: Code=26 regs=0000000046b6cc80 (Addr=00000000000002b3)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001111 Not tainted
r00-03  0000000000000000 0000000010513108 0000000010160098 0000000000000000
r04-07  00000000104652a0 00000000104652a0 0000000000038022 0000000000000000
r08-11  000000008f2b1838 000000008f2b1838 00000000faf01a08 0000000000038022
r12-15  0000000046b6c788 0000000000000000 00000000001 0000000000000002
r16-19  0000000000000000 00000000faf01710 0000000013275e80 00000000000002ab
r20-23  0000000000000002 00000000000000eb 0000000000000006 000000000000003f
r24-27  0000000000001000 0000000000038022 00000000000002b3 00000000104652a0
r28-31  fffffffffffffffb 0000000046b6cc70 0000000046b6cc80 0000000000000000
sr0-3   0000000000020980 0000000000020980 0000000000000000 0000000000020980
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010232a90 0000000010232a94
 IIR: 0f4010d5    ISR: 0000000000000000  IOR: 00000000000002b3
 CPU:        0   CR30: 0000000046b6c000 CR31: 0000000010434000
 ORIG_R28: 000000008c1301c0
 IAOQ[0]: radix_tree_lookup+0x40/0x80
 IAOQ[1]: radix_tree_lookup+0x44/0x80
 RP(r2): find_get_page+0x18/0x48

-- 
Wichert Akkerman <wichert@wiggy.net>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.



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Subject: [parisc-linux] Re: another kernel oops
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Xref: news.gmane.org gmane.linux.ports.parisc:20976

A sym53c8xx related oops, just to keep you guys busy :(

Wichert.


Stack Dump:
 000000008ea4bcb8:  000000008ea4bcb8 0000000000000000 0000000000000000 000000008ea4b7c0
 000000008ea4bc98:  0000000000000000 00000000104652a0 000000000000001a 0000000000000000
 000000008ea4bc78:  0000000000000000 000000001010618c 0000000000000000 0000000000000000
 000000008ea4bc58:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4bc38:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000008ea4bc18:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4bbf8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4bbd8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4bbb8:  000000008ea4b000 000000001337e440 000000001337e450 0000000000000000
 000000008ea4bb98:  00000000104652a0 0000000000000000 0000000000000000 0000000000000000
 000000008ea4bb78:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4bb58:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4bb38:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4bb18:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4baf8:  000000008ac53ad8 000000001010c094 0000000000000000 0961000000000000
 000008ea4bad8:  0000000000000000 0000000010517b78 00000000000026f1 0000000000000060
 000000008ea4bab8:  000000008abd8ad8 000000001026e898 0000000000000000 0015000000000000
 000000008ea4ba98:  000000008abd8058 0000000013210dd8 0000000000000000 01bb000000000000
 000000008ea4ba78:  00000000848d88d8 0000000013210280 0000000000000000 0000000000000000
 000000008ea4ba58:  0000000000000000 000000000eb312c0 0000000000000007 0409ffff00000000
 000000008ea4ba38:  000000008a0fa058 0000000013212050 0000000000000000 00000000103f4d38
 000000008ea4ba18:  000000001016aa80 000000001016aa7c 0000000000000000 0000000000000000
 000000008ea4b9f8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4b9d8:  000000000001d580 0000000000000000 000000000001d580 000000000001d580
 000000008ea4b9b8:  0000000000000014 0000000010189778 ffffffffffffffff ffffffffffffffff
 000000ea4b998:  ffffffffffffffff ffffffffffffffff ffffffffffffffff 000007b113274e80
 000000008ea4b978:  000000000000cccc 0000000000000000 0000000010525d40 0000000000000000
 000000008ea4b958:  00000000104e7ec0 000000008fbf3178 00000000104652a0 0000000010525d40
 000000008ea4b938:  ffffffffffffffff 0000000010187a28 0000000000000802 00000000104652a0
 000000008ea4b918:  0000000013275000 0000000000000000 0000000000000802 0000000000000000
 000000008ea4b8f8:  00000000104f8258 000000003ccbf700 0000000000000802 00000000104652a0
 000000008ea4b8d8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4b8b8:  0000000000000000 000000008ea4b7c0 000000008ea4b7b0 0000000000000018
 000000008ea4b898:  00000000104652a0 000000008ea4b760 0000000013283810 0000000000000001
 000000008ea4b878:  0000000000100100 0000000000200200 0000000000000000 0000000012fdc770
 000000008b858:  000000008ea4ac40 00000000103e9d18 0000000000000000 000000008ea4af80
 000000008ea4b838:  000000008ea447a8 0000000000000001 00000000104652a0 0000000000100000
 000000008ea4b818:  0000000000200000 0000000013283810 000000001337e470 0000000000000001
 000000008ea4b7f8:  00000000104652a0 0000000000000000 000000001337e450 000000001337e440
 000000008ea4b7d8:  000000008ea4b000 000000001016b370 00000000103e4048 000000000804050e
 000000008ea4b7b8:  0000000000000000 000000001016aa9c 0000000000000000 0420ffff00000000
 000000008ea4b798:  0000000000000000 0000000010517b78 000000008ea4b6c0 000000008f0d59d8
 000000008ea4b778:  00000000104652a0 0000000000000063 00000000104f8258 00000000104652a0
 000000008ea4b758:  0000000000000000 00000000132b2000 00000009132b272c 00000000104652a0
 000000008ea4b738:  0000000000000000 000000001013780c 000000003c105410 fffffff80010b000
 000000008ea48:  0000f8004100f800 000000001046baa0 0000000000000001 0000000013283800
 000000008ea4b6f8:  0000000013283810 00000000104652a0 00000000104652a0 0000000000200200
 000000008ea4b6d8:  0000000000100100 000000008e93e540 000000001050c430 00000000104652a0
 000000008ea4b6b8:  0000000000000022 000000001016b370 0000000000000080 000000008f1d6cc0
 000000008ea4b698:  000000008f297e20 00000000104652a0 00000000104652a0 000000008f0d59d8
 000000008ea4b678:  0000000000001501 00000000104652a0 0000000000000000 00000000132b2000
 000000008ea4b658:  00000000103e00d0 000000001337e440 000000001337e4f0 000000008ea4b458
 000000008ea4b638:  0000000000000000 000000001016b5fc 0000000000000002 0000000000000000
 000000008ea4b618:  000000001046baa0 00000000103c62d0 00000000103dd058 000000008ea4af80
 000000008ea4b5f8:  00000000132b272c 0000000000000001 0000000000000000 00000000104652a0
 000000008ea4b5d000000008ea4af80 0000000000000001 000000008e93e5f8 0000000000000000
 000000008ea4b5b8:  0000000000000022 0000000010148ce4 0000000000000080 000000008f1d6cc0
 000000008ea4b598:  000000008f297e20 00000000104652a0 00000000103e00d0 00000000104652a0
 000000008ea4b578:  00000000000000d0 000000008ea4b458 000000008ea4b458 0000000000200200
 000000008ea4b558:  0000000000100100 000000008e93e540 000000008f1d6cc0 000000008f297e20
 000000008ea4b538:  0000000000000400 0000000010148eac 0000000000000001 0000000000000022
 000000008ea4b518:  0000000000000000 000000000800000e 00000000104652a0 ffffffffffffef00
 000000008ea4b4f8:  0000000000000000 000000001013ec24 0000000000000000 000000001010c078
 000000008ea4b4d8:  00000000104652a0 00000000104652a0 0000000000000000 000000008ea4af80
 000000008ea4b4b8:  0000000000000000 000000001013f7f0 0000000010509df0 0000000000000001
 000000008ea4b498:  0000104652a0 000000000000000a 000000000800000e 0000000000000001
 000000008ea4b478:  000000008e93e5f8 000000008ea4b458 000000008ea4b458 000000008ea4b458
 000000008ea4b458:  000000008ea4b458 0000000000000001 000000008ea447a8 0000000000000000
 000000008ea4b438:  0000000000000400 0000000010143828 0000000000000002 00000000104652a0
 000000008ea4b418:  00000000104652a0 00000000132b2000 00000000132b272c 00000000104652a0
 000000008ea4b3f8:  000000008dee8598 000000001029829c 000000003c105410 0000000000000000
 000000008ea4b3d8:  0000000000000040 00000000104652a0 0000000000000000 000000008ea4af80
 000000008ea4b3b8:  00000000132b272c 0000000010107390 00000000104f8258 00000000132b2000
 000000008ea4b398:  00000000132b2000 00000000132b2000 00000000f8004128 00000000104652a0
 000000008ea4b378:  0000000000000022 000000001029e0b0 0000000000000080 0800000000000000
 000000008ea4b358:  000000000000 8000000000000000 00000000104652a0 000000008ea4af80
 000000008ea4b338:  0000000000001474 00000000101074ac 0000000000000000 00000000132b2000
 000000008ea4b318:  0000000000000020 000000000800000e 00000000104652a0 0000000000000002
 000000008ea4b2f8:  000000008c0bd058 000000001029f9a8 000000001037a228 0000000000000000
 000000008ea4b2d8:  00000000104652a0 000000008e93e5f8 000000008f1d6cc0 0000000000000000
 000000008ea4b2b8:  00000000132b272c 000000001010c074 0000000000000000 00000000104652a0
 000000008ea4b298:  000000008ea4ac40 0000000000000001 000000008e93e5f8 0000000000000000
 000000008ea4b278:  0000000000000022 0000000010148ce4 0000000000000080 000000008f1d6cc0
 000000008ea4b258:  000000008f297e20 00000000104652a0 0000000000009408 0000000000009408
 000000008ea4b238:  00000000132b2000 00000000104652a0 000000000800000e 000000000000000c
 000000008ea4b218:  00000000ac40 00000000226fc206 000000000000003f 000000008e93e540
 000000008ea4b1f8:  0000000000000400 000000001029902c 0000000000000001 0000000000000022
 000000008ea4b1d8:  000000001010c07c 000000001010c078 0000000000000000 0000000000000000
 000000008ea4b1b8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4b198:  000000000001d580 0000000000000000 000000000001d580 000000000001d580
 000000008ea4b178:  0000000000000014 0000000010189778 ffffffffffffffff ffffffffffffffff
 000000008ea4b158:  ffffffffffffffff ffffffffffffffff ffffffffffffffff 000007b113274e80
 000000008ea4b138:  0000000000000000 0000000000000000 0000000010525d40 0000000000000000
 000000008ea4b118:  00000000104e7ec0 000000008fbf3178 00000000104652a0 0000000010525d40
 000000008ea4b0f8:  ffffffffffffffff 0000000010187a28 0000000000000802 00000000104652a0
 000000008ea4b0d8:  000000001327 0000000000000000 0000000000000802 0000000000000000
 000000008ea4b0b8:  00000000104f8258 000000003ccbf700 0000000000000802 00000000104652a0
 000000008ea4b098:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4b078:  00000000104702a0 000000008ea4af80 000000008ea4aff0 0000000000000001
 000000008ea4b058:  00000000104652a0 00000000000000f0 0000000000000045 000000008ea4ac40
 000000008ea4b038:  0000000000000000 000000001046a2a0 fe00000000000000 00000000103b7a00
 000000008ea4b018:  fe00000000000000 00000000103e9d18 0000000000000000 000000008ea4ac40
 000000008ea4aff8:  000000008ea447a8 0000000000000001 00000000104652a0 000000008f297e20
 000000008ea4afd8:  000000008f1d6cc0 000000008e93e540 000000008e93e5f8 0000000000000000
 000000008ea4afb8:  000000008f1d6cc0 000000008e93e5f8 00000000104652a0 0000000000000000
 000000008ea4af98:  000000001037a228000001010c074 0000000010469aa0 0000003f0804ff0f
 000000008ea4af78:  00000000132b272c 000000001010c074 0000000000000000 00000000104652a0
 000000008ea4af58:  000000008ea4a900 0000000013300000 00000000104652a0 000000000800000f
 000000008ea4af38:  0000000000000022 00000000102990e4 0000000000000080 000000008f1d6cc0
 000000008ea4af18:  000000008f297e20 00000000104652a0 0000000000009380 0000000000009380
 000000008ea4aef8:  00000000132b2000 00000000104652a0 000000000800000e 000000000000000c
 000000008ea4aed8:  000000008ea4a900 00000000226fc206 000000000000003f 000000008e93e540
 000000008ea4aeb8:  0000000000000400 000000001029902c 0000000000000001 0000000000000022
 000000008ea4ae98:  000000001010c07c 000000001010c078 0000000000000000 0000000000000000
 000000008ea4ae78:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4ae58:  000000000001d580 000000000000 000000000001d580 000000000001d580
 000000008ea4ae38:  0000000000000014 0000000010189778 ffffffffffffffff ffffffffffffffff
 000000008ea4ae18:  ffffffffffffffff ffffffffffffffff ffffffffffffffff 000007b113274e80
 000000008ea4adf8:  0000000000000000 0000000000000000 0000000010525d40 0000000000000000
 000000008ea4add8:  00000000104e7ec0 000000008fbf3178 00000000104652a0 0000000010525d40
 000000008ea4adb8:  ffffffffffffffff 0000000010187a28 0000000000000802 00000000104652a0
 000000008ea4ad98:  0000000013275000 0000000000000000 0000000000000802 0000000000000000
 000000008ea4ad78:  00000000104f8258 000000003ccbf700 0000000000000802 00000000104652a0
 000000008ea4ad58:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008ea4ad38:  00000000104702a0 000000008ea4ac40 000000008ea4acb0 0000000000000001
 000000008ea4ad18:  00000000104652a0 0000000000f0 0000000000000045 000000008ea4a900
 000000008ea4acf8:  0000000000000000 000000001046a2a0 fe00000000000000 00000000103b7a00
 000000008ea4acd8:  fe00000000000000 00000000103e9d18 0000000000000000 000000008ea4a900

Kernel addresses on the stack:
 [<00000000101055f0>] show_stack+0x110/0x160
 [<0000000010105dd4>] parisc_terminate+0x7c/0x100
 [<000000001010618c>] handle_interruption+0x334/0x748
 [<000000001010c094>] intr_check_sig+0x0/0xc
 [<000000001013ec24>] release_console_sem+0x9c/0x1c8
 [<000000001029829c>] sym_xpt_async_bus_reset+0x34/0xc0
 [<000000001029e0b0>] sym_start_up+0x618/0x850
 [<000000001029f9a8>] sym_interrupt+0x230/0x428
 [<0000000010148ce4>] update_process_times+0x64/0x80
 [<000000001029902c>] sym53c8xx_intr+0x5c/0xf0
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<0000000010187a28>] dentry_open+0x1b0/0x2c0
 [<000000001010c074>] intr_return+0x0/0x14
 [<00000000102990e4>] sym53c8xx_timer+0x24/0x80
 [<000000001029902c>] sym53c8xx_intr+0x5c/0xf0
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<0000000010187a28>] dentry_open+0x1b0/0x2c0
 [<000000001010c074>] intr_return+0x0/0x14
 [<0000000010148ce4>] update_process_times+0x64/0x80
 [<000000001029902c>] sym53c8xx_intr+0x5c/0xf0
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<0000000010187a28>] dentry_open+0x1b0/0x2c0
 [<000000001010c074>] intr_return+0x0/0x14
 [<00000000102990e4>] sym53c8xx_timer+0x24/0x80
 [<000000001029902c>] sym53c8xx_intr+0x5c/0xf0
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<0000000010187a28>] dentry_open+0x1b0/0x2c0
 [<000000001010c074>] intr_return+0x0/0x14
 [<0000000010148ce4>] update_process_times+0x64/0x80
 [<000000001029902c>] sym53c8xx_intr+0x5c/0xf0
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<0000000010187a28>] dentry_open+0x1b0/0x2c0
 [<000000001010c074>] intr_return+0x0/0x14
 [<00000000102990e4>] sym53c8xx_timer+0x24/0x80
 [<000000001029902c>] sym53c8xx_intr+0x5c/0xf0
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<0000000010187a28>] dentry_open+0x1b0/0x2c0
 [<000000001010c074>] intr_return+0x0/0x14
 [<0000000010148ce4>] update_process_times+0x64/0x80
 [<000000001029902c>] sym53c8xx_intr+0x5c/0xf0
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<0000000010187a28>] dentry_open+0x1b0/0x2c0
 [<000000001010c074>] intr_return+0x0/0x14
 [<00000000102990e4>] sym53c8xx_timer+0x24/0x80
 [<000000001029902c>] sym53c8xx_intr+0x5c/0xf0
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<0000000010187a28>] dentry_open+0x1b0/0x2c0
 [<000000001010c074>] intr_return+0x0/0x14


Kernel Fault: Code=26 regs=000000008ea4b7c0 (Addr=0000000000000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000010100001110 Not tainted
r00-03  0000000000000000 00000000103e4048 000000001016b370 000000008ea4b000
r04-07  000000001337e440 000000001337e450 0000000000000000 00000000104652a0
r08-11  0000000000000001 000000001337e470 0000000013283810 0000000000200000
r12-15  0000000000100000 00000000104652a0 0000000000000001 000000008ea447a8
r16-19  000000008ea4af80 0000000000000000 00000000103e9d18 000000008ea4ac40
r20-23  0000000012fdc770 0000000000000000 0000000000200200 0000000000100100
r24-27  0000000000000001 0000000013283810 000000008ea4b760 00000000104652a0
r28-31  0000000000000018 000000008ea4b7b0 000000008ea4b7c0 0000000000000000
sr0-3   000000000001d580 000000000001d580 0000000000000000 000000000001d580
sr4-7   0000000000000000 00000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001016aa7c 000000001016aa80
 IIR: 0eb312c0    ISR: 0000000000000000  IOR: 0000000000000000
 CPU:        8   CR30: 000000008ea44000 CR31: 0000000010434000
 ORIG_R28: 0000000013212050
 IAOQ[0]: free_block+0xa4/0x198
 IAOQ[1]: free_block+0xa8/0x198
 RP(r2): drain_array+0xa8/0xd8

-- 
Wichert Akkerman <wichert@wiggy.net>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.



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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] experimental patch to Fix CCIO virtual merging
Date: 03 Mar 2004 00:36:09 -0600
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On Tue, 2004-03-02 at 12:44, James Bottomley wrote:
> The algorithm the ccio currently uses to do virtual merging is rather
> non-optimal.  The attached patch fixes it to merge virtually whenever
> the adjacent I/O pieces begin and end on a page boundary, which produces
> much better merging.

This is cut two.  It actually seems to survive the BK test and build
it's own kernel, so it may be slightly safer than the bug ridden
previous version.

It also contains Grant's fix for the ccio resource management (and some
stats cleanups).

James

===== drivers/parisc/ccio-dma.c 1.15 vs edited =====
--- 1.15/drivers/parisc/ccio-dma.c	Tue Feb  3 23:42:34 2004
+++ edited/drivers/parisc/ccio-dma.c	Tue Mar  2 22:04:23 2004
@@ -41,6 +41,7 @@
 #define PCI_DEBUG
 #include <linux/pci.h>
 #undef PCI_DEBUG
+#include <linux/reboot.h>
 
 #include <asm/byteorder.h>
 #include <asm/cache.h>		/* for L1_CACHE_BYTES */
@@ -63,6 +64,18 @@
 #undef DEBUG_CCIO_INIT
 #undef DEBUG_CCIO_RUN_SG
 
+#ifdef CONFIG_PROC_FS
+/*
+ * CCIO_SEARCH_TIME can help measure how fast the bitmap search is.
+ * impacts performance though - ditch it if you don't use it.
+ */
+#define CCIO_SEARCH_TIME
+#undef CCIO_MAP_STATS
+#else
+#undef CCIO_SEARCH_TIME
+#undef CCIO_MAP_STATS
+#endif
+
 #include <linux/proc_fs.h>
 #include <asm/runway.h>		/* for proc_runway_root */
 
@@ -219,15 +232,18 @@
 	struct ioa_registers *ioc_hpa;  /* I/O MMU base address */
 	u8  *res_map;	                /* resource map, bit == pdir entry */
 	u64 *pdir_base;	                /* physical base address */
+	u32 pdir_size; 			/* bytes, function of IOV Space size */
 	u32 res_hint;	                /* next available IOVP - 
 					   circular search */
 	u32 res_size;		    	/* size of resource map in bytes */
 	spinlock_t res_lock;
 
-#ifdef CONFIG_PROC_FS
+#ifdef CCIO_SEARCH_TIME
 #define CCIO_SEARCH_SAMPLE 0x100
 	unsigned long avg_search[CCIO_SEARCH_SAMPLE];
 	unsigned long avg_idx;		  /* current index into avg_search */
+#endif
+#ifdef CCIO_MAP_STATS
 	unsigned long used_pages;
 	unsigned long msingle_calls;
 	unsigned long msingle_pages;
@@ -237,12 +253,10 @@
 	unsigned long usingle_pages;
 	unsigned long usg_calls;
 	unsigned long usg_pages;
-
-	unsigned short cujo20_bug;
 #endif
+	unsigned short cujo20_bug;
 
 	/* STUFF We don't need in performance path */
-	u32 pdir_size; 			/* in bytes, determined by IOV Space size */
 	u32 chainid_shift; 		/* specify bit location of chain_id */
 	struct ioc *next;		/* Linked list of discovered iocs */
 	const char *name;		/* device name from firmware */
@@ -289,11 +303,11 @@
 ** If the search wraps around, and passes the res_hint, it will
 ** cause the kernel to panic anyhow.
 */
-#define CCIO_SEARCH_LOOP(ioc, res_idx, mask_ptr, size)  \
+#define CCIO_SEARCH_LOOP(ioc, res_idx, mask, size)  \
        for(; res_ptr < res_end; ++res_ptr) { \
-               if(0 == (*res_ptr & *mask_ptr)) { \
-                       *res_ptr |= *mask_ptr; \
-                       res_idx = (int)((unsigned long)res_ptr - (unsigned long)ioc->res_map); \
+               if(0 == (*res_ptr & mask)) { \
+                       *res_ptr |= mask; \
+                       res_idx = (unsigned int)((unsigned long)res_ptr - (unsigned long)ioc->res_map); \
                        ioc->res_hint = res_idx + (size >> 3); \
                        goto resource_found; \
                } \
@@ -302,10 +316,9 @@
 #define CCIO_FIND_FREE_MAPPING(ioa, res_idx, mask, size) \
        u##size *res_ptr = (u##size *)&((ioc)->res_map[ioa->res_hint & ~((size >> 3) - 1)]); \
        u##size *res_end = (u##size *)&(ioc)->res_map[ioa->res_size]; \
-       u##size *mask_ptr = (u##size *)&mask; \
-       CCIO_SEARCH_LOOP(ioc, res_idx, mask_ptr, size); \
+       CCIO_SEARCH_LOOP(ioc, res_idx, mask, size); \
        res_ptr = (u##size *)&(ioc)->res_map[0]; \
-       CCIO_SEARCH_LOOP(ioa, res_idx, mask_ptr, size);
+       CCIO_SEARCH_LOOP(ioa, res_idx, mask, size);
 
 /*
 ** Find available bit in this ioa's resource map.
@@ -333,35 +346,45 @@
 static int
 ccio_alloc_range(struct ioc *ioc, unsigned long pages_needed)
 {
-	int res_idx;
-	unsigned long mask;
-#ifdef CONFIG_PROC_FS
+	unsigned int res_idx;
+#ifdef CCIO_SEARCH_TIME
 	unsigned long cr_start = mfctl(16);
 #endif
 	
 	ASSERT(pages_needed);
 	ASSERT((pages_needed * IOVP_SIZE) <= DMA_CHUNK_SIZE);
-	ASSERT(pages_needed <= BITS_PER_LONG);
-
-	mask = ~(~0UL >> pages_needed);
      
-	DBG_RES("%s() size: %d pages_needed %d mask 0x%08lx\n", 
-		__FUNCTION__, size, pages_needed, mask);
+	DBG_RES("%s() size: %d pages_needed %d\n", 
+		__FUNCTION__, size, pages_needed);
 
 	/*
 	** "seek and ye shall find"...praying never hurts either...
 	** ggg sacrifices another 710 to the computer gods.
 	*/
 
-	if(pages_needed <= 8) {
+	if (pages_needed <= 8) {
+		/*
+		 * LAN traffic will not thrash the TLB IFF the same NIC
+		 * uses 8 adjacent pages to map seperate payload data.
+		 * ie the same byte in the resource bit map.
+		 */
+#if 0
+		/* FIXME: bit search should shift it's way through
+		 * an unsigned long - not byte at a time. As it is now,
+		 * we effectively allocate this byte to this mapping.
+		 */
+		unsigned long mask = ~(~0UL >> pages_needed);
 		CCIO_FIND_FREE_MAPPING(ioc, res_idx, mask, 8);
-	} else if(pages_needed <= 16) {
-		CCIO_FIND_FREE_MAPPING(ioc, res_idx, mask, 16);
-	} else if(pages_needed <= 32) {
-		CCIO_FIND_FREE_MAPPING(ioc, res_idx, mask, 32);
+#else
+		CCIO_FIND_FREE_MAPPING(ioc, res_idx, 0xff, 8);
+#endif
+	} else if (pages_needed <= 16) {
+		CCIO_FIND_FREE_MAPPING(ioc, res_idx, 0xffff, 16);
+	} else if (pages_needed <= 32) {
+		CCIO_FIND_FREE_MAPPING(ioc, res_idx, ~(unsigned int)0, 32);
 #ifdef __LP64__
-	} else if(pages_needed <= 64) {
-		CCIO_FIND_FREE_MAPPING(ioc, res_idx, mask, 64);
+	} else if (pages_needed <= 64) {
+		CCIO_FIND_FREE_MAPPING(ioc, res_idx, ~0UL, 64);
 #endif
 	} else {
 		panic("%s: %s() Too many pages to map. pages_needed: %ld\n",
@@ -373,10 +396,10 @@
 	
 resource_found:
 	
-	DBG_RES("%s() res_idx %d mask 0x%08lx res_hint: %d\n",
-		__FUNCTION__, res_idx, mask, ioc->res_hint);
+	DBG_RES("%s() res_idx %d res_hint: %d\n",
+		__FUNCTION__, res_idx, ioc->res_hint);
 
-#ifdef CONFIG_PROC_FS
+#ifdef CCIO_SEARCH_TIME
 	{
 		unsigned long cr_end = mfctl(16);
 		unsigned long tmp = cr_end - cr_start;
@@ -385,10 +408,10 @@
 	}
 	ioc->avg_search[ioc->avg_idx++] = cr_start;
 	ioc->avg_idx &= CCIO_SEARCH_SAMPLE - 1;
-
+#endif
+#ifdef CCIO_MAP_STATS
 	ioc->used_pages += pages_needed;
 #endif
-
 	/* 
 	** return the bit address.
 	*/
@@ -397,9 +420,8 @@
 
 #define CCIO_FREE_MAPPINGS(ioc, res_idx, mask, size) \
         u##size *res_ptr = (u##size *)&((ioc)->res_map[res_idx]); \
-	u##size *mask_ptr = (u##size *)&mask; \
-        ASSERT((*res_ptr & *mask_ptr) == *mask_ptr); \
-        *res_ptr &= ~(*mask_ptr);
+        ASSERT((*res_ptr & mask) == mask); \
+        *res_ptr &= ~(mask);
 
 /**
  * ccio_free_range - Free pages from the ioc's resource map.
@@ -413,7 +435,6 @@
 static void
 ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped)
 {
-	unsigned long mask;
 	unsigned long iovp = CCIO_IOVP(iova);
 	unsigned int res_idx = PDIR_INDEX(iovp) >> 3;
 
@@ -421,24 +442,28 @@
 	ASSERT((pages_mapped * IOVP_SIZE) <= DMA_CHUNK_SIZE);
 	ASSERT(pages_mapped <= BITS_PER_LONG);
 
-	mask = ~(~0UL >> pages_mapped);
-
-	DBG_RES("%s():  res_idx: %d pages_mapped %d mask 0x%08lx\n", 
-		__FUNCTION__, res_idx, pages_mapped, mask);
+	DBG_RES("%s():  res_idx: %d pages_mapped %d\n", 
+		__FUNCTION__, res_idx, pages_mapped);
 
-#ifdef CONFIG_PROC_FS
+#ifdef CCIO_MAP_STATS
 	ioc->used_pages -= pages_mapped;
 #endif
 
 	if(pages_mapped <= 8) {
+#if 0
+		/* see matching comments in alloc_range */
+		unsigned long mask = ~(~0UL >> pages_mapped);
 		CCIO_FREE_MAPPINGS(ioc, res_idx, mask, 8);
+#else
+		CCIO_FREE_MAPPINGS(ioc, res_idx, 0xff, 8);
+#endif
 	} else if(pages_mapped <= 16) {
-		CCIO_FREE_MAPPINGS(ioc, res_idx, mask, 16);
+		CCIO_FREE_MAPPINGS(ioc, res_idx, 0xffff, 16);
 	} else if(pages_mapped <= 32) {
-		CCIO_FREE_MAPPINGS(ioc, res_idx, mask, 32);
+		CCIO_FREE_MAPPINGS(ioc, res_idx, ~(unsigned int)0, 32);
 #ifdef __LP64__
 	} else if(pages_mapped <= 64) {
-		CCIO_FREE_MAPPINGS(ioc, res_idx, mask, 64);
+		CCIO_FREE_MAPPINGS(ioc, res_idx, ~0UL, 64);
 #endif
 	} else {
 		panic("%s:%s() Too many pages to unmap.\n", __FILE__,
@@ -731,7 +756,7 @@
 	size = ROUNDUP(size + offset, IOVP_SIZE);
 	spin_lock_irqsave(&ioc->res_lock, flags);
 
-#ifdef CONFIG_PROC_FS
+#ifdef CCIO_MAP_STATS
 	ioc->msingle_calls++;
 	ioc->msingle_pages += size >> IOVP_SHIFT;
 #endif
@@ -795,7 +820,7 @@
 
 	spin_lock_irqsave(&ioc->res_lock, flags);
 
-#ifdef CONFIG_PROC_FS
+#ifdef CCIO_MAP_STATS
 	ioc->usingle_calls++;
 	ioc->usingle_pages += size >> IOVP_SHIFT;
 #endif
@@ -877,57 +902,58 @@
 {
 	struct scatterlist *dma_sg = startsg;	/* pointer to current DMA */
 	int n_mappings = 0;
-	u64 *pdirp = 0;
-	unsigned long dma_offset = 0;
+	unsigned long dma_offset = 0, dma_len = 0;
+	u64 *pdirp = NULL;
 
-	dma_sg--;
 	while (nents-- > 0) {
-		int cnt = sg_dma_len(startsg);
-		sg_dma_len(startsg) = 0;
+		unsigned long vaddr;
+		long size;
 
 		DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
 			   (unsigned long)sg_dma_address(startsg), cnt,
 			   sg_virt_addr(startsg), startsg->length
 		);
 
+
 		/*
 		** Look for the start of a new DMA stream
 		*/
-		if(sg_dma_address(startsg) & PIDE_FLAG) {
+		
+		if (sg_dma_address(startsg) & PIDE_FLAG) {
 			u32 pide = sg_dma_address(startsg) & ~PIDE_FLAG;
+
+			if (pdirp) {
+				BUG_ON(dma_len != sg_dma_len(dma_sg));
+				dma_sg++;
+			}
+			dma_len = sg_dma_len(startsg);
 			dma_offset = (unsigned long) pide & ~IOVP_MASK;
-			sg_dma_address(startsg) = 0;
-			dma_sg++;
+			n_mappings++;
 			sg_dma_address(dma_sg) = pide;
 			pdirp = &(ioc->pdir_base[pide >> IOVP_SHIFT]);
-			n_mappings++;
 		}
-
-		/*
-		** Look for a VCONTIG chunk
-		*/
-		if (cnt) {
-			unsigned long vaddr = sg_virt_addr(startsg);
-			ASSERT(pdirp);
-
-			/* Since multiple Vcontig blocks could make up
-			** one DMA stream, *add* cnt to dma_len.
-			*/
-			sg_dma_len(dma_sg) += cnt;
-			cnt += dma_offset;
-			dma_offset=0;	/* only want offset on first chunk */
-			cnt = ROUNDUP(cnt, IOVP_SIZE);
-#ifdef CONFIG_PROC_FS
-			ioc->msg_pages += cnt >> IOVP_SHIFT;
-#endif
-			do {
-				ccio_io_pdir_entry(pdirp, KERNEL_SPACE, 
-						   (void *)vaddr, hint);
-				vaddr += IOVP_SIZE;
-				cnt -= IOVP_SIZE;
-				pdirp++;
-			} while (cnt > 0);
+		
+		BUG_ON(pdirp == NULL);
+		
+		sg_dma_len(startsg) = 0;
+		vaddr = sg_virt_addr(startsg);
+		sg_dma_len(dma_sg) += startsg->length;
+		size = startsg->length + dma_offset;
+		dma_offset = 0;
+		if (unlikely(size > IOVP_SIZE)) {
+			printk("VIRTUAL CHUNK has size 0x%lx\n",
+			       size);
 		}
+#ifdef CCIO_MAP_STATS
+		ioc->msg_pages += startsg->length >> IOVP_SHIFT;
+#endif
+		do {
+			ccio_io_pdir_entry(pdirp, KERNEL_SPACE, 
+					   (void *)vaddr, hint);
+			vaddr += IOVP_SIZE;
+			size -= IOVP_SIZE;
+			pdirp++;
+		} while(unlikely(size > 0));
 		startsg++;
 	}
 	return(n_mappings);
@@ -946,10 +972,7 @@
 static CCIO_INLINE int
 ccio_coalesce_chunks(struct ioc *ioc, struct scatterlist *startsg, int nents)
 {
-	struct scatterlist *vcontig_sg;    /* VCONTIG chunk head */
-	unsigned long vcontig_len;         /* len of VCONTIG chunk */
-	unsigned long vcontig_end;
-	struct scatterlist *dma_sg;        /* next DMA stream head */
+	struct scatterlist *contig_sg;	   /* contig chunk head */
 	unsigned long dma_offset, dma_len; /* start/len of DMA stream */
 	int n_mappings = 0;
 
@@ -958,9 +981,8 @@
 		/*
 		** Prepare for first/next DMA stream
 		*/
-		dma_sg = vcontig_sg = startsg;
-		dma_len = vcontig_len = vcontig_end = startsg->length;
-		vcontig_end += sg_virt_addr(startsg);
+		contig_sg = startsg;
+		dma_len = startsg->length;
 		dma_offset = sg_virt_addr(startsg) & ~IOVP_MASK;
 
 		/* PARANOID: clear entries */
@@ -972,7 +994,10 @@
 		** it's always looking one "ahead".
 		*/
 		while(--nents > 0) {
-			unsigned long startsg_end;
+			unsigned long prevstartsg_end, startsg_end;
+
+			prevstartsg_end = sg_virt_addr(startsg) +
+				startsg->length;
 
 			startsg++;
 			startsg_end = sg_virt_addr(startsg) + 
@@ -987,36 +1012,18 @@
 			** exceed DMA_CHUNK_SIZE if we coalesce the
 			** next entry.
 			*/   
-			if(ROUNDUP(dma_len + dma_offset + startsg->length,
-				   IOVP_SIZE) > DMA_CHUNK_SIZE)
+			if(unlikely(ROUNDUP(dma_len + dma_offset + startsg->length,
+					    IOVP_SIZE) > DMA_CHUNK_SIZE))
 				break;
 
 			/*
-			** Append the next transaction?
+			** Next see if we can append the next chunk (i.e.
+			** it must end on one page and begin on another
 			*/
-			if (vcontig_end == sg_virt_addr(startsg)) {
-				vcontig_len += startsg->length;
-				vcontig_end += startsg->length;
-				dma_len     += startsg->length;
-				continue;
-			}
-
-			/*
-			** Not virtually contigous.
-			** Terminate prev chunk.
-			** Start a new chunk.
-			**
-			** Once we start a new VCONTIG chunk, dma_offset
-			** can't change. And we need the offset from the first
-			** chunk - not the last one. Ergo Successive chunks
-			** must start on page boundaries and dove tail
-			** with its predecessor.
-			*/
-			sg_dma_len(vcontig_sg) = vcontig_len;
-
-			vcontig_sg = startsg;
-			vcontig_len = startsg->length;
-			break;
+			if (unlikely(((prevstartsg_end | sg_virt_addr(startsg)) & ~PAGE_MASK) != 0))
+				break;
+			
+			dma_len += startsg->length;
 		}
 
 		/*
@@ -1024,9 +1031,9 @@
 		** Terminate last VCONTIG block.
 		** Allocate space for DMA stream.
 		*/
-		sg_dma_len(vcontig_sg) = vcontig_len;
+		sg_dma_len(contig_sg) = dma_len;
 		dma_len = ROUNDUP(dma_len + dma_offset, IOVP_SIZE);
-		sg_dma_address(dma_sg) =
+		sg_dma_address(contig_sg) =
 			PIDE_FLAG 
 			| (ccio_alloc_range(ioc, (dma_len >> IOVP_SHIFT)) << IOVP_SHIFT)
 			| dma_offset;
@@ -1053,6 +1060,8 @@
 	int coalesced, filled = 0;
 	unsigned long flags;
 	unsigned long hint = hint_lookup[(int)direction];
+	unsigned long prev_len = 0, current_len = 0;
+	int i;
 	
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
@@ -1067,10 +1076,13 @@
 		sg_dma_len(sglist) = sglist->length;
 		return 1;
 	}
+
+	for(i = 0; i < nents; i++)
+		prev_len += sglist[i].length;
 	
 	spin_lock_irqsave(&ioc->res_lock, flags);
 
-#ifdef CONFIG_PROC_FS
+#ifdef CCIO_MAP_STATS
 	ioc->msg_calls++;
 #endif
 
@@ -1096,9 +1108,15 @@
 
 	spin_unlock_irqrestore(&ioc->res_lock, flags);
 
-	ASSERT(coalesced == filled);
+	BUG_ON(coalesced != filled);
+
 	DBG_RUN_SG("%s() DONE %d mappings\n", __FUNCTION__, filled);
 
+	for (i = 0; i < filled; i++)
+		current_len += sg_dma_len(sglist + i);
+
+	BUG_ON(current_len != prev_len);
+
 	return filled;
 }
 
@@ -1123,13 +1141,13 @@
 	DBG_RUN_SG("%s() START %d entries,  %08lx,%x\n",
 		__FUNCTION__, nents, sg_virt_addr(sglist), sglist->length);
 
-#ifdef CONFIG_PROC_FS
+#ifdef CCIO_MAP_STATS
 	ioc->usg_calls++;
 #endif
 
 	while(sg_dma_len(sglist) && nents--) {
 
-#ifdef CONFIG_PROC_FS
+#ifdef CCIO_MAP_STATS
 		ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
 #endif
 		ccio_unmap_single(dev, sg_dma_address(sglist),
@@ -1199,18 +1217,18 @@
 			      total_pages * 8, total_pages);
 		if (proc_append(tmp, len, &buf, &offset, &count))
 			break;
-		
+#ifdef CCIO_MAP_STATS
 		len = sprintf(tmp, "IO PDIR entries : %ld free  %ld used (%d%%)\n",
 			      total_pages - ioc->used_pages, ioc->used_pages,
 			      (int)(ioc->used_pages * 100 / total_pages));
 		if (proc_append(tmp, len, &buf, &offset, &count))
 			break;
-		
+#endif
 		len = sprintf(tmp, "Resource bitmap : %d bytes (%d pages)\n", 
 			ioc->res_size, total_pages);
 		if (proc_append(tmp, len, &buf, &offset, &count))
 			break;
-		
+#ifdef CCIO_SEARCH_TIME
 		min = max = ioc->avg_search[0];
 		for(j = 0; j < CCIO_SEARCH_SAMPLE; ++j) {
 			avg += ioc->avg_search[j];
@@ -1224,7 +1242,8 @@
 			      min, avg, max);
 		if (proc_append(tmp, len, &buf, &offset, &count))
 			break;
-
+#endif
+#ifdef CCIO_MAP_STATS
 		len = sprintf(tmp, "pci_map_single(): %8ld calls  %8ld pages (avg %d/1000)\n",
 			      ioc->msingle_calls, ioc->msingle_pages,
 			      (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
@@ -1250,7 +1269,7 @@
 			      (int)((ioc->usg_pages * 1000)/ioc->usg_calls));
 		if (proc_append(tmp, len, &buf, &offset, &count))
 			break;

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Subject: [parisc-linux] another oops
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Xref: news.gmane.org gmane.linux.ports.parisc:20978

This one seems to be a bit different: it happens in a mmap syscall and seems
to be VM related.

Wichert.

Stack Dump:
 000000008e1449f8:  000000008e1449f8 0000000010165550 0000000000000000 000000008e144500
 000000008e1449d8:  0000000000000000 00000000104652a0 000000000000000f 00000000000051e0
 000000008e1449b8:  00000000417ab588 000000001010618c 0000000000000001 00000000104652a0
 000000008e144998:  0000000089a43200 0000000089a43200 00000000104652a0 00000000881479c0
 000000008e144978:  00000000406a7ce7 00000000102ee270 000000008e144770 0000000012f8a7e0
 000000008e144958:  00000000104652a0 000000008e144588 0000000012f8a7e0 0000000000000000
 000000008e144938:  00000000103e33e8 000000000000000f 000000000000000f 000000000800000e
 000000008e144918:  00000000104652a0 0000000000000000 0000000000000010 00000000103e3248
 000000008e1448f8:  0000000000005180 0000000000001000 0000000000000000 0000000000100073
 000000008e1448d8:  0000000000000000 0000000012dabe60 00000000104652a0 00000000104652a0
 000008e1448b8:  0000000012dabe60 00000000103e3248 0000000000000000 0000000000000000
 000000008e144898:  0000000000000000 000000008e68e340 000000068e68e340 00000000104652a0
 000000008e144878:  000000008eeeb428 0000000010164d48 0000000000000001 00000000104652a0
 000000008e144858:  0000000012e3cff0 000000008e2d50c8 00000000104652a0 0000000089a43200
 000000008e144838:  00000000103e3248 000000001010c094 000000000800000f 00000000104652a0
 000000008e144818:  0000000000000000 0000000000000000 0000000000000000 00000000103e33d8
 000000008e1447f8:  00000000406a7a0f 0000000010165a18 0000000000000000 000000008e144319
 000000008e1447d8:  0000000010383a1d 0000000000000003 000000008e144319 0000000000000001
 000000008e1447b8:  000000008e14460b ffffffffffffffff 0000000000000001 00000000000051e0
 000000008e144798:  0000000000000000 00000000535300c0 000000000000000b 00000000104652a0
 000008e144778:  0000000000000000 0000000010234838 0000000089a43200 00000000104652a0
 000000008e144758:  0000000010176ee4 0000000010176ee0 0000000000000000 0000000000000000
 000000008e144738:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008e144718:  0000000000020d80 0000000000000000 0000000000020d80 0000000000020d80
 000000008e1446f8:  000000000000ae34 0000000010189778 ffffffffffffffff ffffffffffffffff
 000000008e1446d8:  ffffffffffffffff ffffffffffffffff ffffffffffffffff 0000001c13275e80
 000000008e1446b8:  000000019999999a cccccccd0000001c 0000000010525d40 0000000000000000
 000000008e144698:  00000000104e7ec0 000000008fbf3178 00000000104652a0 0000000010525d40
 000000008e144678:  ffffffffffffffff 0000000010187a28 0000000000000802 00000000104652a0
 000000008e144658:  0000000013276000 0000000000000000 0000000000000802 0000000000000000
 000000e144638:  00000000104f8258 000000003ccbf700 0000000000000802 00000000104652a0
 000000008e144618:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008e1445f8:  000000008f0700f0 000000008e144500 000000008e1444f0 0000000000000000
 000000008e1445d8:  00000000104652a0 0000000000005180 0000000000100073 0000000000000000
 000000008e1445b8:  0000000000000000 0000000000000001 0000000000100073 0000000000000000
 000000008e144598:  0000000000000000 0000000000000001 0000000000000000 0000000000000001
 000000008e144578:  0000000000000003 0000000000000000 0000000000000000 000000008f892080
 000000008e144558:  0000000040000000 0000000000000000 0000000040001000 00000000104652a0
 000000008e144538:  0000000000000000 0000000000100073 0000000000000000 0000000000001000
 000000008e144518:  0000000000005180 00000000101770b4 000000001046faa0 000000ff0804ff0f
 00000000844f8:  00000000001fe850 000000001010e280 000000008e144208 00000000104652a0
 000000008e1444d8:  00000000104652a0 00000000896b2000 0000000000001000 0000000000000801
 000000008e1444b8:  0000000000000000 00000000000001b6 0000000000000004 0000000b37336640
 000000008e144498:  00000000896b2005 000000008d890e80 0000000010525d40 00000000104652a0
 000000008e144478:  0000000000000001 0000000010177be0 00000000417ab588 0000000000088400
 000000008e144458:  0000000000100073 00000000104652a0 0000000000000000 0000000040000000
 000000008e144438:  0000000000001000 00000000104652a0 0000000000001000 000000008f892080
 000000008e144418:  0000000000000000 0000000000000012 0000000000000000 0000000000000001
 000000008e1443f8:  00000000104652a0 0000000010177a10 0000000000000000 000000008ed89210
 000000008e1443d8:  0000000000000000 000000008f073c60 0000000000000000 0000000000000622
 000000008e148:  0000000010390794 000000008e7ed140 00000000104652a0 0000000000000004
 000000008e144398:  0000000000000012 00000000104652a0 00000000104652a0 0000000000000000
 000000008e144378:  0000000000001000 0000000000000003 0000000000000000 0000000000000000
 000000008e144358:  0000000000000000 00000000417af050 0000000000000001 0000000000088400
 000000008e144338:  00000000417ab6c0 00000000417ab588 0000000000000017 000000000000000a
 000000008e144318:  000000008f0700f0 000000008f070100 000000008f0700c0 0000000000088400
 000000008e1442f8:  00000000417ab6c0 000000001010e338 0000000000007d92 4038e56f00000000
 000000008e1442d8:  4038e56f00000000 4045aa6c3b25d1f8 0000000000000008 0000100000000000
 000000008e1442b8:  000000000000025b 0000000000000000 0000000000000000 0000000000000000
 000000008e144298:  000081a400000001 0000000000000000 0000000000000802 00000000000007fe
 000000008e144270000000000000007 0000000010196fb4 000000008e144370 0000000000000001
 000000008e144258:  00000000104652a0 0000000000000008 0000000000088400 0000000000000017
 000000008e144238:  00000000104652a0 000000004072a108 000000000014b7e0 00000000000007fe
 000000008e144218:  0000000000000000 00000000417af050 000000000014b7e0 000000000000000a
 000000008e1441f8:  000000004072a108 000000001010e414 0000000000000008 0000000000001000
 000000008e1441d8:  0000000000000000 000000004038e56f 0000000000000000 000000004038e56f
 000000008e1441b8:  000000003b25d1f8 000000004045aa6c 000000000000025b 000000000014b7e0
 000000008e144198:  0000000000000000 0080000281a40001 0000000000007d92 0000000000001000
 000000008e144178:  0000000000000000 000000001010ce4c 0000000000000000 0000000000000000
 000000008e144158:  0000000000000013 0000000000000013 000000000008ac00 0000000000000008
 000000008e144138:  000000088400 0000000000067000 000000000014b5a8 000000004072a108
 000000008e144118:  00000000417af988 00000000405ba5e8 0000000000000001 00000000417aec50
 000000008e1440f8:  0000000000000000 000000001010c074 0000000000000000 0000000000000000
 000000008e1440d8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008e1440b8:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008e144098:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008e144078:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008e144058:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008e144038:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
 000000008e144018:  0000000100000000 0000000000000000 00000000103de1d0

Kernel addresses on the stack:
 [<000010165550>] __rmqueue+0xd8/0x230
 [<00000000102ee270>] ip_finish_output+0x120/0x318
 [<0000000010164d48>] bad_range+0x70/0xb8
 [<0000000010165a18>] buffered_rmqueue+0xe0/0x1d0
 [<0000000010234838>] number+0x130/0x380
 [<0000000010189778>] get_empty_filp+0x80/0x180
 [<0000000010187a28>] dentry_open+0x1b0/0x2c0
 [<000000001010e280>] arch_get_unmapped_area+0x70/0x90
 [<0000000010177be0>] get_unmapped_area+0xa8/0xb0
 [<0000000010177a10>] do_mmap_pgoff+0x680/0x7a8
 [<000000001010e338>] do_mmap2+0x98/0x120
 [<0000000010196fb4>] sys_fstat64+0x54/0x60
 [<000000001010e414>] sys_mmap+0x2c/0x40
 [<000000001010ce4c>] syscall_exit+0x0/0x14
 [<000000001010c074>] intr_return+0x0/0x14


Kernel Fault: Code=15 regs=000000008e144500 (Addr=00000000000051e0)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  0000000000000000 000000001046faa0 00000000101770b4 0000000000005180
r04-07  0000000000001000 0000000000000000 0000000000100073 0000000000000000
r08-11  00000000104652a0 0000000040001000 0000000000000000 0000000040000000
r12-15  000000008f892080 0000000000000000 00000000000 0000000000000003
r16-19  0000000000000001 0000000000000000 0000000000000001 0000000000000000
r20-23  0000000000000000 0000000000100073 0000000000000001 0000000000000000
r24-27  0000000000000000 0000000000100073 0000000000005180 00000000104652a0
r28-31  0000000000000000 000000008e1444f0 000000008e144500 000000008f0700f0
sr0-3   0000000000020d80 0000000000020d80 0000000000000000 0000000000020d80
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010176ee0 0000000010176ee4
 IIR: 535300c0    ISR: 0000000000000000  IOR: 00000000000051e0
 CPU:        0   CR30: 000000008e144000 CR31: 0000000010434000
 ORIG_R28: 0000000010234838
 IAOQ[0]: can_vma_merge_before+0x0/0x68
 IAOQ[1]: can_vma_merge_before+0x4/0x68
 RP(r2): vma_merge+0xf4/0x3d0

-- 
Wichert Akkerman <wichert@wiggy.net>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.



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Something that might affect my machine is that I am running ext3 on
top of md+raid1. I'm used to that being rock solid on i386, but it
might be a culprit on hppa.

Wichert.

-- 
Wichert Akkerman <wichert@wiggy.net>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.



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Subject: [parisc-linux] Ecartis command results: -- Binary/unsupported file
	stripped by Ecartis --
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>> Please read the attached file.
Unknown command.

---
Ecartis v1.0.0 - job execution complete.



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] Re: another kernel oops
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On Wed, Mar 03, 2004 at 11:26:56AM +0100, Wichert Akkerman wrote:
> Something that might affect my machine is that I am running ext3 on
> top of md+raid1. I'm used to that being rock solid on i386, but it
> might be a culprit on hppa.

I don't think so, but perhaps. I tested my A500 with an external SCSI
array, ext3 ontop of md+raid5. Infact I could test it again when I find
some time. The box in question seems to be suffering some disk issues?

c.


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] another oops
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On Wed, Mar 03, 2004 at 11:25:51AM +0100, Wichert Akkerman wrote:
> This one seems to be a bit different: it happens in a mmap syscall and seems
> to be VM related.

Perhaps your box in question is suffering memory issues?
Tried removing some dimms?

c.


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From: Wichert Akkerman <wichert@wiggy.net>
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Subject: Re: [parisc-linux] another oops
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Previously Carlos O'Donell wrote:
> Perhaps your box in question is suffering memory issues?
> Tried removing some dimms?

Kind of hard considering the box is in a colo. Is there a memtest86-like
thing for hppa I could run remotely?

Wichert.

-- 
Wichert Akkerman <wichert@wiggy.net>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.



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------=_NextPart_000_0007_00000864.00005371--




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Xref: news.gmane.org gmane.linux.ports.parisc:20986

Hello all,
My 815 HP PARISC9000 today died:(((
I will try sparcstation 5 for server again with debian:)


Regards


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From: "Joel Soete" <soete.joel@tiscali.be>
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Hi all,

Sorry for delay but i fill a bit lazy this week (may be because a bit sick
:( ).

Anyway, I get cvs and last a500 config file (in which i just change tulip
builtin in place of module) and it boot fine :).

Thanks to all for great job,
    Joel

PS: Anticipating rc2-pa0, this merge is straighforward, and boot fine on
a b180 ;)

James Bottomley wrote:
> On Sat, 2004-02-28 at 16:21, Joel Soete wrote:
> 
>>Hey interesting, I mean 'torture test'. Where can I get more detail on
this stuff to test on the N4K also?
> 
> 
> It just means running bk doing a tree merge, check
> ng out the results
> and compiling the kernel.  It seems to sow up most types of problems ...
> 
> James
> 
> 
> 
Ah ok , it just sound like some gcc test :) , that is why I though there
was bourned a new test for our kernel.

Thanks for feedb
> ck,
	Joel

PS: I will so prepare such boot kernel for the N ;)



----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
http://reg.tiscali.be/default.asp?lg=fr





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The Parker Drilling email system has quarantined your email message because it contained a potentially harmful file attachment type.

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From: William Waites <parisc@lists.styx.org>
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Subject: [parisc-linux] lstrncpy_from_user symbol not exported
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I tried sending this to submit@bugs.parisc-linux.org
but it bounced...

----- Forwarded message from William Waites <ww@styx.org> -----

Date: Thu, 4 Mar 2004 13:59:49 -0500
From: William Waites 
Subject: lstrncpy_from_user symbol not exported
To: submit@bugs.parisc-linux.org

Hello, 

I am running LiS on Linux/parsic. The streams kernel
module uses the strncpy_from_user function which on
parisc is macro that calls lstrncpy_from_user. This
function is not exported by the kernel, so the module
gets an unresolved symbol. The following patch fixes
this.

Index: arch/parisc/kernel/parisc_ksyms.c
===================================================================
RCS file: /var/cvs/linux-2.4/arch/parisc/kernel/parisc_ksyms.c,v
retrieving revision 1.49
diff -u -r1.49 parisc_ksyms.c
--- a/arch/parisc/kernel/parisc_ksyms.c 17 Jan 2004 06:40:11 -0000      1.49
+++ b/arch/parisc/kernel/parisc_ksyms.c 4 Mar 2004 18:53:07 -0000
@@ -110,6 +110,7 @@
 EXPORT_SYMBOL(lcopy_from_user);
 EXPORT_SYMBOL(lstrnlen_user);
 EXPORT_SYMBOL(lclear_user);
+EXPORT_SYMBOL(lstrncpy_from_user);

 #ifndef __LP64__
 /* Needed so insmod can set dp value */

-- 
/~\  The ASCII Ribbon Campaign
\ /    No HTML/RTF in email
 X     No Word docs in email
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On Friday 05 March 2004 10:58, Martin-ric Racine wrote:
> One thing I noticed today, when using the 712 from the keyboard (which I almost
> never do), is that the cursor arrows near the keypad are broken:
> 
> In menuconfig, pressing any arrow kills the script with an abort message; in
> Nano, the keys are completely ignored.  However, 2.4.24-pa0 works as expected.

Hi Martin-ric,

What does "showkey -s" reports if you press those keys ?
Could you mail me privately your bootlog ?

Helge


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In reference to a message from William Waites, dated Mar 04:
> I tried sending this to submit@bugs.parisc-linux.org
> but it bounced...

commited, thanks

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] Configuring serial ports
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Hello,

I have a B180L with Debian Woody and i'm trying to connect to my ISP through a 
56k modem.

I don't find in the dmesg the ports address of the serial ports.
And how to setup with setserial, baud_base seems to be 454545.

Regards
Marc Dilasser


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Subject: Re: [parisc-linux] glibc-2.3.3: a warning with gcc-3.3 become an
	error with gcc-3.5
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Carlos O'Donell wrote:
> Joel,
> 
> Could you lookup the C99 specification please?
> 
> 
>>--- ./feupdateenv.c.orig	2004-03-02 15:21:25.959085856 +0100
>>+++ ./feupdateenv.c	2004-03-02 07:53:27.938166120 +0100
>>@@ -28,11 +28,16 @@
>>   /* Get the current exception status. */
>>   __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
>>   sw[0] &= FE_ALL_EXCEPT;
>>-  envp->__status_word = envp->__status_word | sw[0];
>>+/*  envp->__status_word = envp->__status_word | sw[0]; */
> 
> 
> This is required to set the flags. Please review the specfications.
> 
> 
>>   /* Install new environment.  */
>>   fesetenv (envp);
>> 
>>+  /* Raise the safed exception.  Incidently for us the implementation
>>+     defined format of the values in objects of type fexcept_t is the
>>+     same as the ones specified using the FE_* constants.  */
>>+  feraiseexcept (sw[0]);
>>+
> 
> 
> AFAIK, this is not correct, the spec says that it will be an OR of the
> raised exceptions, e.g. an OR of the raised flags. 
> 
> Calling feraiseexcept could fault the program.
> 
> 
>>   /* Success.  */
>>   return 0;
>> }
> 
Taken into account of your relevant remarks here is my new proposal:
=========><=========
--- sysdeps/hppa/fpu/feupdateenv.c.orig 2004-03-06 21:18:40.789605000 +0100
+++ sysdeps/hppa/fpu/feupdateenv.c      2004-03-06 21:22:21.839605000 +0100
@@ -23,15 +23,16 @@
  int
  feupdateenv (const fenv_t *envp)
  {
-  unsigned int sw[2];
+  struct fenv_t saved_env, new_env;

    /* Get the current exception status. */
-  __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
-  sw[0] &= FE_ALL_EXCEPT;
-  envp->__status_word = envp->__status_word | sw[0];
+  fegetenv(&saved_env);
+  saved_env.__status_word &= FE_ALL_EXCEPT;
+  new_env.__status_word = envp->__status_word | saved_env.__status_word;
+  for (i = 0; i < 7; i++) new_env.__exception[i] = envp->__exception[i];

    /* Install new environment.  */
-  fesetenv (envp);
+  fesetenv (&new_env);

    /* Success.  */
    return 0;
=========><=========

Joel




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Hi Marc,

I also have a 2 b180 (1 runing 2.4.2? and  the other 2.6.4-rc2-pa?) (running a lightweight fw) to connect successfully my isp with 
a 38k baud modem :). But it's a long time that I update those system to testing debian, more over there are 3 releases of woody, 
so can you recall me which kernel is running on your system, and which ppp release is installed.

btw can you check in /boot/config? if ppp support is setup in your kernel?

Regards,
	Joel

Marc Dilasser wrote:
> Hello,
> 
> I have a B180L with Debian Woody and i'm trying to connect to my ISP through a 
> 56k modem.
> 
> I don't find in the dmesg the ports address of the serial ports.
> And how to setup with setserial, baud_base seems to be 454545.
> 
> Regards
> Marc Dilasser
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


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On Sat, Mar 06, 2004 at 10:14:12PM +0000, Joel Soete wrote:
> Taken into account of your relevant remarks here is my new proposal:
> =========><=========
> --- sysdeps/hppa/fpu/feupdateenv.c.orig 2004-03-06 21:18:40.789605000 +0100
> +++ sysdeps/hppa/fpu/feupdateenv.c      2004-03-06 21:22:21.839605000 +0100
> @@ -23,15 +23,16 @@
>  int
>  feupdateenv (const fenv_t *envp)
>  {
> -  unsigned int sw[2];
> +  struct fenv_t saved_env, new_env;
> 
>    /* Get the current exception status. */
> -  __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
> -  sw[0] &= FE_ALL_EXCEPT;
> -  envp->__status_word = envp->__status_word | sw[0];

Yeah, this is bad, because 'envp' is const, and we shouldn't be changing
its value.

> +  fegetenv(&saved_env);
> +  saved_env.__status_word &= FE_ALL_EXCEPT;
> +  new_env.__status_word = envp->__status_word | saved_env.__status_word;
> +  for (i = 0; i < 7; i++) new_env.__exception[i] = envp->__exception[i];

Why do you use "new_env" at all? Just use saved_env. Then you don't have
to have a silly loop to copy the exceptions, they'll already be there.
Then you can call fesetenv(&saved_env);
 
>    /* Install new environment.  */
> -  fesetenv (envp);
> +  fesetenv (&new_env);
> 
>    /* Success.  */
>    return 0;
> =========><=========

c.



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pa,

Some initial XFree86 loader notes.
http://www.baldric.uwo.ca/~carlos/XFree86-Loader.html

Hopefully I'll get some time next week to do more testing. This week I
had a small snippet of time to do some analysis on the loader.

c.



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Subject: [parisc-linux] Sleepy, EWOULDBLOCK != EAGAIN?
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pa,

Please remind me why we don't make EWOULDBLOCK == EAGAIN?
I know it would break our existing ABI, but Linux apps expect them to be
the same. I remember vaguely some argument about hpux compatibility...
I'm sleepy, but I thought I'd post so I don't forget.

I'm reminded of this because update-menus is complaining about locks
during a recent 712/100 install, and it all came flooding back.

c.



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Subject: Re: [parisc-linux] glibc-2.3.3: a warning with gcc-3.3 become an
	error with gcc-3.5
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Carlos O'Donell wrote:
> On Sat, Mar 06, 2004 at 10:14:12PM +0000, Joel Soete wrote:
> 
>>Taken into account of your relevant remarks here is my new proposal:
>>=========><=========
>>--- sysdeps/hppa/fpu/feupdateenv.c.orig 2004-03-06 21:18:40.789605000 +0100
>>+++ sysdeps/hppa/fpu/feupdateenv.c      2004-03-06 21:22:21.839605000 +0100
>>@@ -23,15 +23,16 @@
>> int
>> feupdateenv (const fenv_t *envp)
>> {
>>-  unsigned int sw[2];
>>+  struct fenv_t saved_env, new_env;
>>
>>   /* Get the current exception status. */
>>-  __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
>>-  sw[0] &= FE_ALL_EXCEPT;
>>-  envp->__status_word = envp->__status_word | sw[0];
> 
> 
> Yeah, this is bad, because 'envp' is const, and we shouldn't be changing
> its value.
> 
> 
>>+  fegetenv(&saved_env);
>>+  saved_env.__status_word &= FE_ALL_EXCEPT;
>>+  new_env.__status_word = envp->__status_word | saved_env.__status_word;
>>+  for (i = 0; i < 7; i++) new_env.__exception[i] = envp->__exception[i];
> 
> 
> Why do you use "new_env" at all?

The reason is very simple: I just begin with glibc and my knowledge is still at stone age in this field.
This is an evidence that sun appears red in the early morning or at the end of the evening but white for the rest of a suny day, why?
The same here, hppa don't need feraiseexcept() but the alpha, i386, ia64, m68k, mips, (ppc), s390 and sparc need and I don't yet 
understand why ;)

> Just use saved_env. Then you don't have
> to have a silly loop to copy the exceptions, they'll already be there.
> Then you can call fesetenv(&saved_env);
>  
> 
>>   /* Install new environment.  */
>>-  fesetenv (envp);
>>+  fesetenv (&new_env);
>>
>>   /* Success.  */
>>   return 0;
>>=========><=========
> 
I will send you another patch which take into account your relevant remarks.

In the mean time I encounter this new pb:
/Sources/parisc-linux/xc/bin/hppa-linux-gcc dl-sym.c -c -std=gnu99 -O2 -Wall -Winline -Wstrict-prototypes -Wwrite-strings -g 
-I../include -I. -I/Sources/parisc-linux/build/glibc/elf -I.. -I../libio  -I/Sources/parisc-linux/build/glibc 
-I../sysdeps/hppa/elf -I../linuxthreads/sysdeps/unix/sysv/linux/hppa -I../linuxthreads/sysdeps/unix/sysv/linux 
-I../linuxthreads/sysdeps/pthread -I../sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv -I../linuxthreads/sysdeps/unix 
-I../linuxthreads/sysdeps/hppa -I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu 
-I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix -I../sysdeps/posix 
-I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 
-I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa -I../sysdeps/ieee754 -I../sysdeps/generic/elf 
-I../sysdeps/generic -nostdinc -isystem /Sources/parisc-linux/xc/lib/gcc/hppa-linux/3.5.0/include -isystem 
/Sources/parisc-linux/sources/linux/include -D_LIBC_REENTRANT -include ../include/libc-symbols.h       -o 
/Sources/parisc-linux/build/glibc/elf/dl-sym.o -MD -MP -MF
/Sources/parisc-linux/build/glibc/elf/dl-sym.o.dt
In file included from dl-sym.c:27:
../sysdeps/generic/dl-tls.h:2:2: #error "architecture-specific version of <dl-tls.h> missing"
make[2]: *** [/Sources/parisc-linux/build/glibc/elf/dl-sym.o] Error 1
make[2]: Leaving directory `/Sources/parisc-linux/sources/glibc-2.3.3-20040306/elf'
make[1]: *** [elf/subdir_lib] Error 2
make[1]: Leaving directory `/Sources/parisc-linux/sources/glibc-2.3.3-20040306'
make: *** [all] Error 2

and would suggest this patch:
--- dl-sym.c.orig       2004-03-07 11:44:11.219605000 +0100
+++ dl-sym.c    2004-03-07 11:41:21.219605000 +0100
@@ -24,10 +24,10 @@
  #include <dlfcn.h>
  #include <ldsodefs.h>
  #include <dl-hash.h>
-#include <dl-tls.h>

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Subject: Re: [parisc-linux] Sleepy, EWOULDBLOCK != EAGAIN?
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Carlos O'Donell wrote:
> pa,
> 
> Please remind me why we don't make EWOULDBLOCK == EAGAIN?
There was a thread (dated Sept 200) starting here:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2002-September/017575.html>
and a followup (dated Oct 2002) starting here:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2002-October/018052.html>

> I know it would break our existing ABI, but Linux apps expect them to be
> the same. I remember vaguely some argument about hpux compatibility...
> I'm sleepy, but I thought I'd post so I don't forget.
> 
> I'm reminded of this because update-menus is complaining about locks
> during a recent 712/100 install, and it all came flooding back.
> 
> c.
> 
hth,
	Joel


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Subject: [parisc-linux] glibc cvs: additional patche
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Hi Carlos,

Since yesterday cvs update, i also need a patch similar to:
<http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/sysdeps/s390/s390-32/dl-machine.h.diff?r1=1.19&r2=1.20&cvsroot=glibc>

=========><=========
--- sysdeps/hppa/dl-machine.h.orig      2004-03-07 12:26:36.000000000 +0100
+++ sysdeps/hppa/dl-machine.h   2004-03-07 12:34:06.000000000 +0100
@@ -252,7 +252,7 @@
                  }
                else
                 {
-                 if (_dl_name_match_p (GL(dl_profile), l))
+                 if (_dl_name_match_p (GLRO(dl_profile), l))
                     {
                       /* This is the object we are looking for.  Say that
                          we really want profiling and the timers are
@@ -581,9 +581,9 @@
  static inline void __attribute__ ((unused))
  dl_platform_init (void)
  {
-       if (GL(dl_platform) != NULL && *GL(dl_platform) == '\0')
+       if (GLRO(dl_platform) != NULL && *GLRO(dl_platform) == '\0')
         /* Avoid an empty string which would disturb us.  */
-               GL(dl_platform) = NULL;
+               GLRO(dl_platform) = NULL;
  }

  #endif /* !dl_machine_h */
@@ -684,7 +684,7 @@
         break;
        if (__builtin_expect (sym->st_size > refsym->st_size, 0)
           || (__builtin_expect (sym->st_size < refsym->st_size, 0)
-             && __builtin_expect (GL(dl_verbose), 0)))
+             && __builtin_expect (GLRO(dl_verbose), 0)))
         {
           const char *strtab;

=========><=========

hth,
	Joel


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Does anyone have any thoughts regarding this patch?

Index: soundcard.h
===================================================================
RCS file: /var/cvs/linux-2.4/include/linux/soundcard.h,v
retrieving revision 1.6
diff -u -r1.6 soundcard.h
--- soundcard.h	26 Jun 2003 15:08:08 -0000	1.6
+++ soundcard.h	21 Feb 2004 16:04:12 -0000
@@ -179,7 +179,7 @@
  * Some big endian/little endian handling macros
  */
 
-#if defined(_AIX) || defined(AIX) || defined(sparc) || defined(__sparc__) || defined(HPPA) || defined(PPC) || defined(__mc68000__)
+#if defined(_AIX) || defined(AIX) || defined(sparc) || defined(__sparc__) || defined(HPPA) || defined(__hppa__) || defined(PPC) || defined(__powerpc__) || defined(__mc68000__)
 /* Big endian machines */
 #  define _PATCHKEY(id) (0xfd00|id)
 #  define AFMT_S16_NE AFMT_S16_BE


Or alternatively:

Index: soundcard.h
===================================================================
RCS file: /var/cvs/linux-2.4/include/linux/soundcard.h,v
retrieving revision 1.6
diff -u -r1.6 soundcard.h
--- soundcard.h	26 Jun 2003 15:08:08 -0000	1.6
+++ soundcard.h	07 Mar 2004 17:26:23 -0000
@@ -39,6 +39,13 @@
 /* In Linux we need to be prepared for cross compiling */
 #include <linux/ioctl.h>
 
+/* Endian macros. Note that they have a different meaning in the kernel. */
+#ifdef __KERNEL__
+#  include <asm/byteorder.h>
+#else
+#  include <endian.h>
+#endif
+
 /*
  *	Supported card ID numbers (Should be somewhere else?)
  */
@@ -179,13 +186,28 @@
  * Some big endian/little endian handling macros
  */
 
-#if defined(_AIX) || defined(AIX) || defined(sparc) || defined(__sparc__) || defined(HPPA) || defined(PPC) || defined(__mc68000__)
-/* Big endian machines */
-#  define _PATCHKEY(id) (0xfd00|id)
-#  define AFMT_S16_NE AFMT_S16_BE
-#else
-#  define _PATCHKEY(id) ((id<<8)|0xfd)
-#  define AFMT_S16_NE AFMT_S16_LE
+#if defined(__BIG_ENDIAN)
+#  if defined(__KERNEL__) || (defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN)
+#    if defined(AFMT_S16_NE) || defined(_PATCHKEY)
+#      error AFMT_S16_NE (or _PATCHKEY) is already defined
+#    endif
+#    define AFMT_S16_NE AFMT_S16_BE
+#    define _PATCHKEY(id) (0xfd00|id)
+#  endif
+#endif
+
+#if defined(__LITTLE_ENDIAN)
+#  if defined(__KERNEL__) || (defined(__BYTE_ORDER) && __BYTE_ORDER == __LITTLE_ENDIAN)
+#    if defined(AFMT_S16_NE) || defined(_PATCHKEY)
+#      error AFMT_S16_NE (or _PATCHKEY) is already defined
+#    endif
+#    define AFMT_S16_NE AFMT_S16_LE
+#    define _PATCHKEY(id) ((id<<8)|0xfd)
+#  endif
+#endif
+
+#if !defined(AFMT_S16_NE)
+#  error Failed to define AFMT_S16_NE
 #endif
 
 /*

Should I be sending this elsewhere?

Thanks,
-- 
Stuart Brady


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Subject: Re: [parisc-linux] [PATCH] include/linux/soundcard.h endian fix
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On Sunday 07 March 2004 18:32, Stuart Brady wrote:
> Does anyone have any thoughts regarding this patch?
> 
> Index: soundcard.h
> ===================================================================
> RCS file: /var/cvs/linux-2.4/include/linux/soundcard.h,v
> retrieving revision 1.6
> diff -u -r1.6 soundcard.h
> --- soundcard.h	26 Jun 2003 15:08:08 -0000	1.6
> +++ soundcard.h	21 Feb 2004 16:04:12 -0000
> @@ -179,7 +179,7 @@
>   * Some big endian/little endian handling macros
>   */
>  
> -#if defined(_AIX) || defined(AIX) || defined(sparc) || defined(__sparc__) || defined(HPPA) || defined(PPC) || defined(__mc68000__)
> +#if defined(_AIX) || defined(AIX) || defined(sparc) || defined(__sparc__) || defined(HPPA) || defined(__hppa__) || defined(PPC) || defined(__powerpc__) || defined(__mc68000__)

I think you should just use "defined(__hppa__)" and simply 
drop the "defined(HPPA)" part.

> Or alternatively:
> 
> Index: soundcard.h
> ===================================================================
> RCS file: /var/cvs/linux-2.4/include/linux/soundcard.h,v
> retrieving revision 1.6
> diff -u -r1.6 soundcard.h
> --- soundcard.h	26 Jun 2003 15:08:08 -0000	1.6
> +++ soundcard.h	07 Mar 2004 17:26:23 -0000
> @@ -39,6 +39,13 @@
>  /* In Linux we need to be prepared for cross compiling */
>  #include <linux/ioctl.h>
>  
> +/* Endian macros. Note that they have a different meaning in the kernel. */
> +#ifdef __KERNEL__
> +#  include <asm/byteorder.h>
> +#else
> +#  include <endian.h>
> +#endif
> +
>  /*
>   *	Supported card ID numbers (Should be somewhere else?)
>   */
> @@ -179,13 +186,28 @@
>   * Some big endian/little endian handling macros
>   */
>  
> -#if defined(_AIX) || defined(AIX) || defined(sparc) || defined(__sparc__) || defined(HPPA) || defined(PPC) || defined(__mc68000__)
> -/* Big endian machines */
> -#  define _PATCHKEY(id) (0xfd00|id)
> -#  define AFMT_S16_NE AFMT_S16_BE
> -#else
> -#  define _PATCHKEY(id) ((id<<8)|0xfd)
> -#  define AFMT_S16_NE AFMT_S16_LE
> +#if defined(__BIG_ENDIAN)
> +#  if defined(__KERNEL__) || (defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN)
> +#    if defined(AFMT_S16_NE) || defined(_PATCHKEY)
> +#      error AFMT_S16_NE (or _PATCHKEY) is already defined
> +#    endif
> +#    define AFMT_S16_NE AFMT_S16_BE
> +#    define _PATCHKEY(id) (0xfd00|id)
> +#  endif
> +#endif
> +
> +#if defined(__LITTLE_ENDIAN)
> +#  if defined(__KERNEL__) || (defined(__BYTE_ORDER) && __BYTE_ORDER == __LITTLE_ENDIAN)
> +#    if defined(AFMT_S16_NE) || defined(_PATCHKEY)
> +#      error AFMT_S16_NE (or _PATCHKEY) is already defined
> +#    endif
> +#    define AFMT_S16_NE AFMT_S16_LE
> +#    define _PATCHKEY(id) ((id<<8)|0xfd)
> +#  endif
> +#endif
> +
> +#if !defined(AFMT_S16_NE)
> +#  error Failed to define AFMT_S16_NE
>  #endif
>  
>  /*

Personally I think either is OK.
 
> Should I be sending this elsewhere?

linux-kernel@vger.kernel.org ?

Helge


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On Sun, Mar 07, 2004 at 11:07:19AM +0000, Joel Soete wrote:
> >Why do you use "new_env" at all?
> 
> The reason is very simple: I just begin with glibc and my knowledge is 
> still at stone age in this field.
> This is an evidence that sun appears red in the early morning or at the end 
> of the evening but white for the rest of a suny day, why?
> The same here, hppa don't need feraiseexcept() but the alpha, i386, ia64, 
> m68k, mips, (ppc), s390 and sparc need and I don't yet understand why ;)

Because our feraiseexcept() is different from theirs?
 
> In the mean time I encounter this new pb:
> /Sources/parisc-linux/xc/bin/hppa-linux-gcc dl-sym.c -c -std=gnu99 -O2 
> -Wall -Winline -Wstrict-prototypes -Wwrite-strings -g -I../include -I. 
> -I/Sources/parisc-linux/build/glibc/elf -I.. -I../libio  
> -I/Sources/parisc-linux/build/glibc -I../sysdeps/hppa/elf 
> -I../linuxthreads/sysdeps/unix/sysv/linux/hppa 
> -I../linuxthreads/sysdeps/unix/sysv/linux -I../linuxthreads/sysdeps/pthread 
> -I../sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv 
> -I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/hppa 
> -I../sysdeps/unix/sysv/linux/hppa -I../sysdeps/unix/sysv/linux 
> -I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman 
> -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix 
> -I../sysdeps/posix -I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 
> -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 
> -I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hppa/fpu -I../sysdeps/hppa 
> -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic 
> -nostdinc -isystem 
> /Sources/parisc-linux/xc/lib/gcc/hppa-linux/3.5.0/include -isystem 
> /Sources/parisc-linux/sources/linux/include -D_LIBC_REENTRANT -include 
> ../include/libc-symbols.h       -o 
> /Sources/parisc-linux/build/glibc/elf/dl-sym.o -MD -MP -MF
> /Sources/parisc-linux/build/glibc/elf/dl-sym.o.dt
> In file included from dl-sym.c:27:
> ../sysdeps/generic/dl-tls.h:2:2: #error "architecture-specific version of 
> <dl-tls.h> missing"
> make[2]: *** [/Sources/parisc-linux/build/glibc/elf/dl-sym.o] Error 1
> make[2]: Leaving directory 
> `/Sources/parisc-linux/sources/glibc-2.3.3-20040306/elf'
> make[1]: *** [elf/subdir_lib] Error 2
> make[1]: Leaving directory 
> `/Sources/parisc-linux/sources/glibc-2.3.3-20040306'
> make: *** [all] Error 2
> 
> and would suggest this patch:
> --- dl-sym.c.orig       2004-03-07 11:44:11.219605000 +0100
> +++ dl-sym.c    2004-03-07 11:41:21.219605000 +0100
> @@ -24,10 +24,10 @@
>  #include <dlfcn.h>
>  #include <ldsodefs.h>
>  #include <dl-hash.h>
> -#include <dl-tls.h>
> -
> 
>  #if defined USE_TLS && defined SHARED
> +#include <dl-tls.h>
> +
>  /* Systems which do not have tls_index also probably have to define
>     DONT_USE_TLS_INDEX.  */

I'm doing a build right now, if I see this issue I'll report it upstream
with this fix.

c.



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On Sun, Mar 07, 2004 at 01:05:27PM +0000, Joel Soete wrote:
> Since yesterday cvs update, i also need a patch similar to:

I see changes required to dl-runtime.c aswell.

c.


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From: parisc-linux@lists.parisc-linux.org
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From - Thu Nov 08 21:31:09 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] is that your beast?
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drugs? ...

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Your message

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did not reach the following recipient(s):

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misc. and so on. see you!


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] Re: glibc cvs: additional patche
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>I see changes required to dl-runtime.c aswell.

Oops I miss somehing,

Thanks,
    Joel


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From: "Andy Walker" <ajwalker@broadpark.no>
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Subject: [parisc-linux] No PS2 keyboard/mouse on B132L, 2.6.[34]
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I've a B132L running Gentoo. With 2.4 I had the PS/2 keyboard working fine
throught a Raritan Compuswitch KVM, but the mouse (wireless Intellimouse
clone - 2 buttons pluss roller/middle) was dead. Decided to try out 2.6
partly to excercise udev, but mostly in the hope that all the input layer
work and pS/2 changes would bring the mouse to life. I should probably add
that there are two more machines on the KVM - a PC running 2.6.3 which runs
the mouse and keyboard flawlessly, and another PC running 2.4.24 that also
has no problems.

To the point - 2.6.3-pa0 from Gentoo hppa-dev-kernel leaves both keyboard
and mouse dead. 2.6.4-rc1-pa2 fetched by hand does exactly the same. Some
info below:




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From - Thu Nov 08 21:31:10 2018
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X-Mozilla-Keys:                                                                                 
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] New glibc patches 2004-03-08, fixes GLRO changes.
Date: Mon, 8 Mar 2004 12:49:14 -0500
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Approved: news@gmane.org
Message-ID: <20040308174914.GC19791@baldric.uwo.ca>
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To: Joel Soete <soete.joel@tiscali.be>
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Xref: news.gmane.org gmane.linux.ports.parisc:21012

On Mon, Mar 08, 2004 at 08:27:34AM +0100, Joel Soete wrote:
> Oops I miss somehing,

New patches here, passes testsuite without regression.

http://www.parisc-linux.org/~carlos/glibc-hppa-patches-2004-03-08.tar.gz

Joel,

Is there any chance that you could do some testing for me please?

1. Use debootstrap to build a chroot (/mnt/chroot)
2. Compile glibc with --prefix=/mnt/chroot
3. Install the new glibc there.
4. Test out running some stuff from the chroot.
	o Try running Xnest
	o Try running X applications through Xnest
	o Try building a new kernel in the chroot.

Thanks!

c.


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From: "Andy Walker" <andy@puszczka.com>
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Subject: [parisc-linux] No PS2 keyboard/mouse on B132L, 2.6.[34]
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I've a B132L running Gentoo. With 2.4 I had the PS/2 keyboard working fine
throught a Raritan Compuswitch KVM, but the mouse (wireless Intellimouse
clone - 2 buttons pluss roller/middle) was dead. Decided to try out 2.6
partly to excercise udev, but mostly in the hope that all the input layer
work and PS/2 changes would bring the mouse to life. I should probably add
that there are two PCs on the KVM - one running 2.6.3 and one running
2.4.24. Both run the mouse and keyboard flawlessly.

To the point. I grabbed 2.6.3-pa0 from Gentoo hppa-dev-kernel, configured
and compiled it. The keyboard and mouse are both dead. I downloaded
2.6.4-rc1-pa2 from cvs.parisc-linux.org but the result is exactly the same.
Some info below. Clues anybody?

Why is 8/12 (0x00089) reported as unknown in the device table and in
proc/interrupts? Its the Zalon HVD SCSI.

What about the SDC failed transactions. Is that an artifact of having HIL
compiled in but unused?

regards,
-Andy

weasel drivers # uname -a
Linux weasel 2.6.4-rc1-pa2 #2 Sun Mar 7 17:49:32 CET 2004 parisc PA7300LC
(PCX-L2) 9000/778/B132L GNU/Linux

weasel drivers # dmesg
Linux version 2.6.4-rc1-pa2 (root@weasel) (gcc version 3.3.2) #2 Sun Mar 7
17:49:32 CET 2004
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005010 00000481 00000000 02020202 77f85570 100000f0 00000004
000000ba 000000ba
vers  00000008
CPUID vers 15 rev 8 (0x000001e8)
capabilities 0x2
model 9000/778/B132L
Total Memory: 384 Mb
On node 0 totalpages: 98304
  DMA zone: 98304 pages, LIFO batch:16
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
LED display at f0190001 registered
Built 1 zonelists
Kernel command line: root=/dev/sda2 HOME=/ console=tty0 sti=8/8
sti_font=VGA8x16 TERM=linux palo_kernel=2/boot/vmlinux
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Memory: 385388k available
Calibrating delay loop... 87.85 BogoMIPS
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
POSIX conformance testing by UNIFIX
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Merlin+ 132 Dino PS/2 Port at 0xfff81000 [1] { 10, 0x0, 0x022, 0x00096
} 2. Merlin+ 132 Dino RS-232 at 0xfff83000 [3] { 10, 0x0, 0x022, 0x0008c }
3. Phantom PseudoBC GSC+ Port at 0xffc00000 [8] { 7, 0x0, 0x504, 0x00000 }
4. Dino PCI Bridge at 0xfff80000 [8/0] { 13, 0x1, 0x680, 0x0000a } 5.
Coral SGC Graphics at 0xf4000000 [8/8] { 10, 0x0, 0x004, 0x00077 } 6.
unknown device at 0xfff8c000 [8/12] { 4, 0x0, 0x03c, 0x00089 }
7. Merlin 132 Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x03c, 0x00081 }, 
additional addresses: 0xffd0c000 0xffc00000
8. Merlin 132 Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x03c,
0x00074 },  additional addresses: 0xffd01000 0xffd03000
9. Merlin 132 Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x03c, 0x0007b
} 10. Merlin 132 Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x03c,
0x0008c } 11. Merlin 132 Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0,
0x03c, 0x00082 } 12. Merlin 132 Core LAN (802.3) at 0xffd07000 [8/16/6] {
10, 0x0, 0x03c, 0x0008a }
13. Merlin 132 Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x03c,
0x00084 }
14. Merlin 132 Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x03c,
0x00084 }
15. Merlin 132 Wax BA at 0xffe00000 [8/20] { 11, 0x0, 0x040, 0x0008e } 16.
Merlin 132 Wax HIL at 0xffe01000 [8/20/1] { 10, 0x0, 0x040, 0x00073 } 17.
Merlin 132 Wax RS-232 at 0xffe02000 [8/20/2] { 10, 0x0, 0x040, 0x0008c }
18. Merlin 132 Wax EISA BA at 0xfc000000 [8/20/5] { 11, 0x0, 0x040,
0x00090 },  additional addresses: 0xf0184000
19. Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 0x00085
},  additional addresses: 0xf0011000
20. Merlin L2 132 (9000/778/B132L) at 0xfffbe000 [62] { 0, 0x0, 0x501,
0x00004 }
21. Memory at 0xfffbf000 [63] { 1, 0x0, 0x060, 0x00009 }
CPU(s): 1 x PA7300LC (PCX-L2) at 132.000000 MHz
Lasi version 0 at 0xffd00000 found.
Wax at 0xffe00000 found.
Wax EISA Adapter found at 0xfc000000
EISA EEPROM at 0xf0184000
Enumerating EISA bus
EISA: Probing bus 0 at parisc8:20:5
EISA: Mainboard HWPC000 detected.
EISA: Detected 0 cards.
Dino parisc8:0 version 2.1 found at 0xfff80000
The GSCtoPCI (Dino hrev 1) bus converter found may exhibit
data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.
Systems shipped after Aug 20, 1997 will not exhibit this problem.
Models affected: C180, C160, C160L, B160L, and B132L workstations.

Dino parisc8:0: No PCI devices enabled.
SCSI subsystem initialized
STI GSC/PCI core graphics driver Version 0.9a
    id 2bcb015a-9a02587, conforms to spec rev. 8.04
    graphics card name: HPA4071B_LZ
    id 2d08c0a7-9a02587, conforms to spec rev. 8.07
    graphics card name: INTERNAL_EG_1280
fb0: stifb 1280x1024-8 frame buffer device, HPA4071B_LZ, id: 2bcb015a,
mmio: 0xf4100000
fb1: stifb 1280x1024-8 frame buffer device, INTERNAL_EG_1280, id:
2d08c0a7, mmio: 0xf8100000
ikconfig 0.7 with /proc/config*
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
Soft power switch enabled, polling @ 0xf0140000.
Console: switching to colour frame buffer device 160x64
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
Serial: device 0xfff83000 not configured.
Enable support for Wax, Lasi, Asp or Dino.
ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xffd07000, IRQ 87
eth%d: 82596 at 0xffd07000, 00 60 B0 07 1C 2C IRQ 87.
82596.c $Revision: 1.29 $
airo:  Probing for PCI adapters
airo:  Finished probing for PCI adapters
zalon_probe: Zalon vers field is 0x1, IRQ 35
ncr53c720-0: rev 0xf irq 35
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3e
Using anticipatory io scheduler
  Vendor: SEAGATE   Model: ST39173WD         Rev: 5764
  Type:   Direct-Access                      ANSI SCSI revision: 02
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
scsi1: (2:0) Synchronous at offset 8, period 236ns
  Vendor: TOSHIBA   Model: CD-ROM XM-5401TA  Rev: 1036
  Type:   CD-ROM                             ANSI SCSI revision: 02
st: Version 20040213, fixed bufsize 32768, s/g segs 256
ncr53c720-0-<0,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sda: 17783240 512-byte hdwr sectors (9105 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 >
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 0
Attached scsi generic sg1 at scsi1, channel 0, id 2, lun 0,  type 5
Console: switching to colour frame buffer device 160x64
mice: PS/2 mouse device common for all mice
serio: GSC PS2 keyboard port at 0xffd08000 irq 69 @ parisc8:16:7
serio: GSC PS2 mouse port at 0xffd08100 irq 69 @ parisc8:16:8
HP SDC: HP SDC reports successful PUP.
HP SDC: HP SDC at 0xffe01000, IRQ 126 (NMI IRQ 125)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware
reset. HP SDC MLC: Registering the System Domain Controller's HIL MLC.
oprofile: using timer interrupt.
NET: Registered protocol family 2
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET: Registered protocol family 1
NET: Registered protocol family 17
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 332k freed
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: read timeout (1537786us)!
Adding 525304k swap on /dev/sda3.  Priority:-1 extents:1
EXT3 FS on sda2, internal journal
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda5, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda6, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda7, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda8, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
eth0: link ok.
weasel drivers #
weasel drivers # cat /proc/interrupts
           CPU00
  2:          0            EISA  cascade
 32:    5268327      PARISC-CPU  timer
 33:      11276      PARISC-CPU  lasi
 34:          0      PARISC-CPU  Dino parisc8:0
 35:      49026      PARISC-CPU  parisc8:12
 39:        433      PARISC-CPU  wax
 69:         50            Lasi  GSC PS2 keyboard, GSC PS2 mouse
 86:         15            Lasi  parisc8:16:5
 87:      11201            Lasi  i82596
 88:          0            Lasi  parport0
 90:         10            Lasi  serial
117:          0             Wax  EISA
125:          0             Wax  HP SDC NMI
126:        433             Wax  HP SDC

weasel drivers # zcat /proc/config.gz

#
# Automatically generated make config: don't edit
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_STANDALONE=y
CONFIG_BROKEN_ON_SMP=y

#
# General setup
#
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_HOTPLUG=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_EMBEDDED is not set
CONFIG_KALLSYMS=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set

#
# Loadable module support
#
CONFIG_MODULES=y
# CONFIG_MODULE_UNLOAD is not set
CONFIG_OBSOLETE_MODPARM=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y

#
# Processor type and features
#
# CONFIG_PA7000 is not set
CONFIG_PA7100LC=y
# CONFIG_PA7200 is not set
# CONFIG_PA8X00 is not set
CONFIG_PA11=y
# CONFIG_64BIT is not set
# CONFIG_SMP is not set
# CONFIG_PREEMPT is not set
# CONFIG_HPUX is not set

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
# CONFIG_ISA is not set
CONFIG_PCI=y
CONFIG_PCI_LEGACY_PROC=y
CONFIG_PCI_NAMES=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y

#
# PCMCIA/CardBus support
#
# CONFIG_PCMCIA is not set

#
# PCI Hotplug Support
#
# CONFIG_HOTPLUG_PCI is not set

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
# CONFIG_FW_LOADER is not set

#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set

#
# Parallel port support
#
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_PARPORT_PC_CML1=y
# CONFIG_PARPORT_SERIAL is not set
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_GSC=y
# CONFIG_PARPORT_OTHER is not set
# CONFIG_PARPORT_1284 is not set

#
# Plug and Play support
#

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=y
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y
# CONFIG_DCSSBLK is not set

#
# ATA/ATAPI/MFM/RLL support
#
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_REPORT_LUNS is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_SATA is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
# CONFIG_SCSI_SYM53C8XX_IOMAPPED is not set
CONFIG_SCSI_ZALON=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
CONFIG_SCSI_QLA2XXX=y
# CONFIG_SCSI_QLA21XX is not set
# CONFIG_SCSI_QLA22XX is not set
# CONFIG_SCSI_QLA2300 is not set
# CONFIG_SCSI_QLA2322 is not set
# CONFIG_SCSI_QLA6312 is not set
# CONFIG_SCSI_QLA6322 is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_NSP32 is not set
# CONFIG_SCSI_DEBUG is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set

#
# Fusion MPT device support
#
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_IEEE1394 is not set

#
# I2O device support
#
# CONFIG_I2O is not set

#
# Macintosh device drivers
#

#
# Networking support
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=y
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_IPV6 is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_NETFILTER is not set

#
# SCTP Configuration (EXPERIMENTAL)
#
CONFIG_IPV6_SCTP__=y
# CONFIG_IP_SCTP is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_MII is not set
CONFIG_LASI_82596=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_SMC is not set

#
# Tulip family network device support
#
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
# CONFIG_TULIP_MMIO is not set
# CONFIG_TULIP_NAPI is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
# CONFIG_DGRS is not set
# CONFIG_EEPRO100 is not set
# CONFIG_E100 is not set
# CONFIG_LNE390 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
CONFIG_DL2K=y
# CONFIG_E1000 is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_R8169 is not set
# CONFIG_SIS190 is not set
# CONFIG_SK98LIN is not set
# CONFIG_TIGON3 is not set

#
# Ethernet (10000 Mbit)
#
# CONFIG_IXGB is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Wireless LAN (non-hamradio)
#
CONFIG_NET_RADIO=y

#
# Obsolete Wireless cards support (pre-802.11)
#
# CONFIG_STRIP is not set

#
# Wireless 802.11b ISA/PCI cards support
#
CONFIG_AIRO=y
# CONFIG_HERMES is not set
# CONFIG_ATMEL is not set
CONFIG_NET_WIRELESS=y
#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set

#
# Amateur Radio support
#
# CONFIG_HAMRADIO is not set

#
# IrDA (infrared) support
#
# CONFIG_IRDA is not set

#
# Bluetooth support
#
# CONFIG_BT is not set

#
# ISDN subsystem
#
# CONFIG_ISDN is not set

#
# Telephony Support
#
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input I/O drivers
#
# CONFIG_GAMEPORT is not set
CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_PARKBD is not set
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=y
CONFIG_HIL_MLC=y
# CONFIG_SERIO_PCIPS2 is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ATKBD is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
CONFIG_KEYBOARD_HIL=y
CONFIG_INPUT_MOUSE=y
# CONFIG_MOUSE_PS2 is not set
# CONFIG_MOUSE_SERIAL is not set
CONFIG_MOUSE_HIL=y
CONFIG_INPUT_JOYSTICK=y
# CONFIG_JOYSTICK_IFORCE is not set
# CONFIG_JOYSTICK_WARRIOR is not set
# CONFIG_JOYSTICK_MAGELLAN is not set
# CONFIG_JOYSTICK_SPACEORB is not set
# CONFIG_JOYSTICK_SPACEBALL is not set
# CONFIG_JOYSTICK_STINGER is not set
# CONFIG_JOYSTICK_TWIDDLER is not set
# CONFIG_JOYSTICK_DB9 is not set
# CONFIG_JOYSTICK_GAMECON is not set
# CONFIG_JOYSTICK_TURBOGRAFX is not set
# CONFIG_INPUT_JOYDUMP is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_PCSPKR is not set
# CONFIG_INPUT_UINPUT is not set
CONFIG_HP_SDC_RTC=y

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_SERIAL_NONSTANDARD is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_MULTIPORT is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MUX is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_PRINTER=y
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_TIPAR is not set

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_QIC02_TAPE is not set

#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_NVRAM is not set
CONFIG_GEN_RTC=y
# CONFIG_GEN_RTC_X is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_RAW_DRIVER is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set

#
# Graphics support
#
CONFIG_FB=y
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_STI=y
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON_OLD is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_VIRTUAL is not set

#
# Console display driver support
#
# CONFIG_MDA_CONSOLE is not set
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_PCI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y

#
# Logo configuration
#
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_LOGO_PARISC_CLUT224=y

#
# Sound
#
CONFIG_SOUND=m

#
# Advanced Linux Sound Architecture
#
# CONFIG_SND is not set

#
# Open Sound System
#
# CONFIG_SOUND_PRIME is not set
CONFIG_SOUND_HARMONY=m

#
# USB support
#
# CONFIG_USB is not set

#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_FAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVPTS_FS_XATTR is not set
CONFIG_TMPFS=y
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set

# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set

#
# Network File Systems
#
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_DIRECTIO is not set
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V4 is not set
CONFIG_NFSD_TCP=y
CONFIG_ROOT_NFS=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=y
CONFIG_SUNRPC=y
# CONFIG_SUNRPC_GSS is not set
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y

#
# Native Language Support
#
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set

#
# Profiling support
#
CONFIG_PROFILING=y
CONFIG_OPROFILE=y

#
# Kernel hacking
#
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SLAB is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_INFO is not set

#
# Security options
#
# CONFIG_SECURITY is not set

#
# Cryptographic options
#
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_TEST is not set

#
# Library routines
#
CONFIG_CRC32=y





From - Thu Nov 08 21:31:10 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] No PS2 keyboard/mouse on B132L, 2.6.[34]
Date: Mon, 8 Mar 2004 22:36:15 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:21014

On Mon, Mar 08, 2004 at 12:28:37PM +0100, Andy Walker wrote:
> Why is 8/12 (0x00089) reported as unknown in the device table and in
> proc/interrupts? Its the Zalon HVD SCSI.
...
> 6. unknown device at 0xfff8c000 [8/12] { 4, 0x0, 0x03c, 0x00089 }

It means we don't have an entry for Zalon in arch/parisc/kernel/hardware.c
Can you submit a patch for that?

(I confess: I'm being very lazy tonight and don't want to figure
what needs to go into the hardware.c array)

> zalon_probe: Zalon vers field is 0x1, IRQ 35
> ncr53c720-0: rev 0xf irq 35
> ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
> scsi0 : ncr53c8xx-3.4.3e
> Using anticipatory io scheduler
>   Vendor: SEAGATE   Model: ST39173WD         Rev: 5764
>   Type:   Direct-Access                      ANSI SCSI revision: 02

Zalon is obviously recognized and seems to be working.

...
> weasel drivers # cat /proc/interrupts
>            CPU00
>   2:          0            EISA  cascade
>  32:    5268327      PARISC-CPU  timer
>  33:      11276      PARISC-CPU  lasi
>  34:          0      PARISC-CPU  Dino parisc8:0
>  35:      49026      PARISC-CPU  parisc8:12

hrm...good question. Oic.  RTFC. :^)
In drivers/scsi/zalon.c:
        if (request_irq(irq, ncr53c8xx_intr, SA_SHIRQ, dev->dev.bus_id, host)) {
                printk(KERN_ERR "%s: irq problem with %d, detaching\n ",
                        dev->dev.bus_id, irq);
                goto fail;
        }

sorry, can't help with the keyboard/mouse problems...

hth,
grant


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Hi,

I finally made the kernels tests I promised.
Sorry it took so long, but my serial null-modem cable was broken and I
had to get a new one ...


About the test:
---------------
It seems that currently Linux/PA-RISC doesn't support IDE-hard disks
with anything other than the onboard NS87415 chip of the B/Cxxx0.
Furthermore it seems that the onbard chip also doesn't use DMA
transfers and works for me only with 2.4 kernels.

Therefore I tried a Silicon Image Si680 PCI IDE controller, and a
Promise Ultra100 TX2 PCI IDE controller with both 2.4 and 2.6 kernels and
they didn't work either.


Recent discussions on p-l led to the assumption that io.c may be
broken and tests with a modified arch/parisc/io.c would be helpful.
Therefore I took out all references to leXX_to_cpu and cpu_to_leXX in io.c
and built various kernels and ran them.

I created four 2.4.25-pa0 kernel with the following configs:

- one with support for onboard NS87415 of my C3000
- one using the (new) Promise PDC202{68|69|70|71|75|76|77} driver
- one using the (old) Promise PDC202{46|62|65|67} driver
- one using the siimage driver

And then I did the same for the 2.6.4-rc1-pa1 kernel (also four configs).

N.B.
- I enabled "Use PCI DMA by default when available" for all kernels.
- I did a CVS update at March 03 22:00 GMT (for both 2.4 and 2.6 kernel
  sources) before built the kernels.
- The Silicon Image PCI card and the Promise PCI card where put in
  a PCI 33MHz slot (only one card at a time)
- I'm using a Seagate ST311022A 120GB IDE hard drive to test
  the IDE controllers.


Test results:
-------------

linux-2.4.25-pa0-io:
   - detects IDE controller: "NS87415: 100% native mode on irq 103"
   - detects hard disk wrongly as "TS130220A2", no access possible
   - NO "hda: lost interrupt" messages on boot up
   - NOTE: the unpatched vanilla kernel was correctly identifying hard
     disk as "ST3120022A" and also detects partitions correcty.
     works fine, but with merely 3.3 MB/s (obviously no DMA transfer used)

linux-2.4.25-pa0-io-promise:
   - detects IDE controller:
        "PDC20268: not 100% native mode: will probe irqs later"
   - detects hard disk wrongly as "TS130220A2", no access possible
   - "hda: lost interrupt" messages
   - NOTE: the unpatched vanilla kernel was correctly identifying hard
     disk as "ST3120022A" and also detects partitions correcty.
     However access is very slow (e.g. fdisk takes minutes), seems like
     problems with interrupts

linux-2.4.25-pa0-io-promiseold:
   - Stack dump while trying to detect IDE controller

linux-2.4.25-pa0-io-siimage:
   - detects IDE controller:
       "SiI680: not 100% native mode: will probe irqs later"
   - detects hard disk wrongly as "TS130220A2", no access possible
   - "hda: lost interrupt" messages
   - NOTE: the unpatched vanilla kernel was also identifying the hard disk
     wrongly as "TS130220A2"!

linux-2.6.4-rc1-pa1-io:
   - detects IDE controller: "NS87415: 100% native mode on irq 103"
   - detects hard disk wrongly as "TS130220A2", no access possible
   - stops booting with "Kernel panic: ide: default attach failed"
   - NOTE: an slightly older (unpatched) vanilla kernel was correctly
     identifying  hard disk as "ST3120022A" and also detects partitions
     correcty, but I wasn't able to use the hard disk
     (IIRC "lots interrupt" messages; sorry I didn't find a boot log)

linux-2.6.4-rc1-pa1-io-promise:
   - detects IDE controller: "PDC20268: 100% native mode on irq 128"
   - detects hard disk wrongly as "TS130220A2", no access possible
   - stops booting with "Kernel panic: ide: default attach failed"
   - NOTE: an unpatched, vanilla 2.6.3-pa2 kernel was correctly
     identifying hard disk as "ST3120022A" and also detects partitions correcty,
     but with lots of "lots interrupt messages"

linux-2.6.4-rc1-pa1-io-promiseold:
   - Stack dump while trying to detect IDE controller

linux-2.6.4-rc1-pa1-io-siimage:
   - detects IDE controller: "SiI680: 100% native mode on irq 128"
   - detects hard disk wrongly as "TS130220A2", no access possible
   - stops booting with "Kernel panic: ide: default attach failed"
   - NOTE: an unpatched, vanilla 2.6.0-test11-pa2 kernel was also
     identifying the hard disk wrongly as "TS130220A2", but stopped with
     "Your System ate a SPARC!"


The configs, boot logs and System.maps and the modified io.c can be found
here: http://www.cs.ucc.ie/~xam/io/

Some reports of old tests with unpatched kernels can be found in my
previous mails (search the p-l archive), and some info is also here:
http://www.cs.ucc.ie/~xam/siimage/
http://www.cs.ucc.ie/~xam/promise/


Hope that helps,
  Max


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> Recent discussions on p-l led to the assumption that io.c may be
> broken and tests with a modified arch/parisc/io.c would be helpful.
> Therefore I took out all references to leXX_to_cpu and cpu_to_leXX in io.c
> and built various kernels and ran them.

as you found out in your tests, io.c is correct as it was before.... I
think Grant got confused with our original pci mmio macros which had
wrong endian.... but that was a very long time ago :)

I am trying to bring up the ns87415 ide controller on my c3750.. not
much luck yet :-(

for the other controllers, you might need a pci fixup to bring the 
devices into native mode (as Alan mentioned in his email). i wonder if
it's safe to automatically set all IDE devices to native mode?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Mon, 8 Mar 2004, Randolph Chung wrote:

> > Recent discussions on p-l led to the assumption that io.c may be
> > broken and tests with a modified arch/parisc/io.c would be helpful.
> > Therefore I took out all references to leXX_to_cpu and cpu_to_leXX in io.c
> > and built various kernels and ran them.
>
> as you found out in your tests, io.c is correct as it was before.... I
> think Grant got confused with our original pci mmio macros which had
> wrong endian.... but that was a very long time ago :)

Guessing from his last messages about this topic it seems so ;-P

> I am trying to bring up the ns87415 ide controller on my c3750.. not
> much luck yet :-(

I don't have any troubles with it since 2.4.21 on my C3000, just DMA is
not working. However I can't get it working on 2.6 either.

> for the other controllers, you might need a pci fixup to bring the
> devices into native mode (as Alan mentioned in his email). i wonder if
> it's safe to automatically set all IDE devices to native mode?

I don't have much knowledge about IDE and especially no knowledge how
different linux architectures are dealing with it.
But since some of the cards work on other linux architectures
(e.g. the Promise card is reproted to run on Linux/PPC), it is definitely
possible.

But what I'm wondering about is why the Silicon Image driver
(always) detects the Seagate ST311022A hard drive as "TS130220A2".
Since it uses mmio instead of PIO as the other drivers, maybe there is
some big-endian problem in the Linux/PA-RISC mmio code? But then this
problem must be somewhere in the IDE code, since all mmio in general
seems to be working fine!

Slightly confused,
  Max


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> But what I'm wondering about is why the Silicon Image driver
> (always) detects the Seagate ST311022A hard drive as "TS130220A2".
> Since it uses mmio instead of PIO as the other drivers, maybe there is
> some big-endian problem in the Linux/PA-RISC mmio code? But then this
> problem must be somewhere in the IDE code, since all mmio in general
> seems to be working fine!

oh, for mmio you need to fix the macros in include/asm-parisc/ide.h. the
ones in io.c are for pio access. the mmio ones are new, i think, and 
haven't been fixed properly (__ide_mm_insw, etc) -- you can try 
replacing readw with __raw_readw, etc.

can you also try the native-mode fixup? something like this (sorry 
it's not in patch format, my tree is a bit of a mess right now and it's
late....)

in arch/parisc/kernel/pci.c, change:

struct pci_fixup pcibios_fixups[] = {
        { PCI_FIXUP_HEADER, PCI_ANY_ID, PCI_ANY_ID, parisc_fixup_ide },
        { 0 }
};

parisc_fixup_ide is something like this:

static void __devinit parisc_fixup_ide(struct pci_dev *dev)
{
    u8 prog;

    if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
        return;

    pci_read_config_byte(dev, 8, &prog);
    pci_write_config_byte(dev, 8, prog | 0x5);
    dev->class |= 0x5;
}

not tested, YMMV :)

Grant tells me that he suspects there's a bug somewhere in the pci
config accessor functions tho... on my box i saw that, using something
similar to the above sequence, i read 0x8a into prog (this is the 
default), but after the write if i read it again the value is still 
0x8a :(

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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>New patches here, passes testsuite without regression.
>
>http://www.parisc-linux.org/~carlos/glibc-hppa-patches-2004-03-08.tar.gz

Thanks :)

>Joel,
>
>Is there any chance that you could do some testing for me please?

Just let me find a free disk :)

I will advise ;)

>1. Use debootstrap to build a chroot (/mnt/chroot)

BTW which install should I install: man debootstrap give the fllowing example
deboostrap woody ./woody-chroot http://ftp.cx.debian.org/debian

Well not familiar with debootstrap but I presume that ./woody-chroot would
be here /mnt/chroot and ftp.cx.debian.org my nearest debian repository. 
But my question is: would you like I build a woody or would you prefer a
sarge?


>2. Compile glibc with --prefix=/mnt/chroot
>3. Install the new glibc there.
>4. Test out running some stuff from the chroot.
	o Try running Xnest
	o Try running X applications through Xnest
	o Try building a new kernel in the chroot.

Clear

>Thanks!

wellcome,

Joel


----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
http://reg.tiscali.be/default.asp?lg=fr





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Xref: news.gmane.org gmane.linux.ports.parisc:21020

On Montag, 8. Mrz 2004 12:28, Andy Walker wrote:
> I've a B132L running Gentoo. With 2.4 I had the PS/2 keyboard working fine
> throught a Raritan Compuswitch KVM, but the mouse (wireless Intellimouse
> clone - 2 buttons pluss roller/middle) was dead. Decided to try out 2.6
> partly to excercise udev, but mostly in the hope that all the input layer
> work and PS/2 changes would bring the mouse to life. I should probably add
> that there are two PCs on the KVM - one running 2.6.3 and one running
> 2.4.24. Both run the mouse and keyboard flawlessly.
> 
> To the point. I grabbed 2.6.3-pa0 from Gentoo hppa-dev-kernel, configured
> and compiled it. The keyboard and mouse are both dead. I downloaded
> 2.6.4-rc1-pa2 from cvs.parisc-linux.org but the result is exactly the same.
> Some info below. Clues anybody?
....
> # Input Device Drivers
> #
> CONFIG_INPUT_KEYBOARD=y
> # CONFIG_KEYBOARD_ATKBD is not set

Please enable this one (CONFIG_KEYBOARD_ATKBD), and....

> # CONFIG_KEYBOARD_SUNKBD is not set
> # CONFIG_KEYBOARD_XTKBD is not set
> # CONFIG_KEYBOARD_NEWTON is not set
> CONFIG_KEYBOARD_HIL=y
> CONFIG_INPUT_MOUSE=y
> # CONFIG_MOUSE_PS2 is not set

this one too.

In the latest 2.6 kernel series, we switched from a parisc-only
PS/2 mouse/keyboard driver to the standard linux kernel PS/2
mouse keyboard drivers.

Helge


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Subject: Re: [parisc-linux] No PS2 keyboard/mouse on B132L, 2.6.[34]
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> On Montag, 8. Mrz 2004 12:28, Andy Walker wrote:
>> To the point. I grabbed 2.6.3-pa0 from Gentoo hppa-dev-kernel,
>> configured
>> and compiled it. The keyboard and mouse are both dead. I downloaded
2.6.4-rc1-pa2 from cvs.parisc-linux.org but the result is exactly the
same.
>> Some info below. Clues anybody?
> ....
>> # Input Device Drivers
>> #
>> CONFIG_INPUT_KEYBOARD=y
>> # CONFIG_KEYBOARD_ATKBD is not set
>
> Please enable this one (CONFIG_KEYBOARD_ATKBD), and....
>
>> # CONFIG_KEYBOARD_SUNKBD is not set
>> # CONFIG_KEYBOARD_XTKBD is not set
>> # CONFIG_KEYBOARD_NEWTON is not set
>> CONFIG_KEYBOARD_HIL=y
>> CONFIG_INPUT_MOUSE=y
>> # CONFIG_MOUSE_PS2 is not set
>
> this one too.
>
> In the latest 2.6 kernel series, we switched from a parisc-only
> PS/2 mouse/keyboard driver to the standard linux kernel PS/2
> mouse keyboard drivers.
>
> Helge

Hi Helge,

I'm just about to give this a try. The reason these weren't enabled is
that menuconfig was a bit non-intuitive (to me at least). Maybe I was just
being paranoid, but when I selected ATKBD or MOUSE_PS2 then the GSC PS/2
item got closed up and I didn't know whether it was on or off. That scared
me and I assumed that selecting GSC PS/2 support would enable everything
else I needed. Compiling now, but I won't be able to test until I get home
from work and actually get my hands on the keyboard/mouse.

Thanks,
-Andy




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Subject: Re: [parisc-linux] No PS2 keyboard/mouse on B132L, 2.6.[34]
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> On Mon, Mar 08, 2004 at 12:28:37PM +0100, Andy Walker wrote:
>> Why is 8/12 (0x00089) reported as unknown in the device table and in
proc/interrupts? Its the Zalon HVD SCSI.
> ...
>> 6. unknown device at 0xfff8c000 [8/12] { 4, 0x0, 0x03c, 0x00089 }
>
> It means we don't have an entry for Zalon in
arch/parisc/kernel/hardware.c
> Can you submit a patch for that?
> (I confess: I'm being very lazy tonight and don't want to figure what
needs to go into the hardware.c array)

Try this then. I just followed the pattern for B160L, C110 et. al.

--- linux-2.6.4-rc1-pa3.bak/arch/parisc/kernel/hardware.c	Tue Mar  9
10:05:25 2004
+++ linux-2.6.4-rc1-pa3/arch/parisc/kernel/hardware.c	Tue Mar  9 10:27:23
2004
@@ -334,6 +334,7 @@
 	{HPHW_A_DMA, 0x027, 0x00089, 0x80, "Piranha 100 FW-SCSI"},
 	{HPHW_A_DMA, 0x032, 0x00089, 0x80, "Raven T' Core FW-SCSI"},
 	{HPHW_A_DMA, 0x03b, 0x00089, 0x80, "Raven U/L2 Core FW-SCSI"},
+	{HPHW_A_DMA, 0x03c, 0x00089, 0x80, "Merlin 132 Core FW-SCSI"},
 	{HPHW_A_DMA, 0x03d, 0x00089, 0x80, "Merlin 160 Core FW-SCSI"},
 	{HPHW_A_DMA, 0x044, 0x00089, 0x80, "Mohawk Core FW-SCSI"},
 	{HPHW_A_DMA, 0x051, 0x00089, 0x80, "Firehawk FW-SCSI"},

There are other issues with the hardware.c array though. I guess they're
not critical, and I've no idea how to resolve them as they seem to
indicate duplication on HP's part. I guess this is old news:

1. Merlin+ 132 Dino PS/2 Port at 0xfff81000 [1] { 10, 0x0, 0x022, 0x00096 }
2. Merlin+ 132 Dino RS-232 at 0xfff83000 [3] { 10, 0x0, 0x022, 0x0008c }
5. Coral SGC Graphics at 0xf4000000 [8/8] { 10, 0x0, 0x004, 0x00077 }
19. Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 0x00085},
   additional addresses: 0xf0011000

- Merlin+ 132 is B132L+, as far as I know. But this machine is
  a plain Merlin/B132L. The Dino ports are marked Merlin+. Weird.
  Could this imply mean Dino was upgraded to a non-broken rev. using
  Merlin+ parts? There are separate items in hardware.c for 'Merlin
  132 Dino PS/2 Port', and 'Merlin 132 Dino RS-232' but these don't
  match.

- what's listed as 'Coral SGC Graphics' is actually an A4071B_LZ GSC
  card, aka. HCRX-24 with hardware acceleration board. No separate items
  in hardware.c for any of A407[01][AB] or H?CRX-(8|24).

- what's listed as 'Gecko GSC Core Graphics' on my machine is actually
  the 'Merlin 132 Core Graphics' i.e. the builtin Vis-EG. There is a
  separate item in hardware.c for 'Merlin 132 Core Graphics' but it
  doesn't match.

BTW: Firmware rev. is 6.1 (i.e. latest available)

cheers,
-Andy



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From: =?iso-8859-1?Q?Martin-=C9ric_Racine?= <q-funk-x+5WvRp7yOp+8FyH61/OPw@public.gmane.org>
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Subject: [parisc-linux] Re: broken keyboard driver on 2.6.3
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On Sat, 6 Mar 2004, Helge Deller wrote:

> On Friday 05 March 2004 10:58, Martin-=C9ric Racine wrote:
> > One thing I noticed today, when using the 712 from the keyboard (which =
I almost
> > never do), is that the cursor arrows near the keypad are broken:
> >=20
> > In menuconfig, pressing any arrow kills the script with an abort messag=
e; in
> > Nano, the keys are completely ignored.  However, 2.4.24-pa0 works as ex=
pected.

I wanted to point out that this only seems to affect ncurse-based software.=
 For
instance, using Up/Down to cycle Bash commandline history still works.

> What does "showkey -s" reports if you press those keys ?

I pressed PageUp, PageDown, Up, Down, Left, Right and got:

press any key (program terminates after 10s of last keypress)...
0xe0 0x2a 0xe0 0x37 0xe0 0x49 0xe0 0xc9 0xe0 0xaa 0xe0 0xb7
0xe0 0x2a 0xe0 0x37 0xe0 0x51 0xe0 0xd1 0xe0 0xaa 0xe0 0xb7
0xe0 0x2a 0xe0 0x37 0xe0 0x48 0xe0 0xc8 0xe0 0xaa 0xe0 0xb7
0xe0 0x2a 0xe0 0x37 0xe0 0x50 0xe0 0xd0 0xe0 0xaa 0xe0 0xb7
0xe0 0x2a 0xe0 0x37 0xe0 0x4b 0xe0 0xcb 0xe0 0xaa 0xe0 0xb7
0xe0 0x2a 0xe0 0x37 0xe0 0x4d 0xe0 0xcd 0xe0 0xaa 0xe0 0xb7
<q-funk@zarya:/home/q-funk>$

> Could you mail me privately your bootlog ?

Done.

--=20
Martin-=C9ric Racine, ICT Consultant
http://www.pp.fishpool.fi/~q-funk/



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Carlos,

>>Joel,
>>
>>Is there any chance that you could do some testing for me please?
>
>Just let me find a free disk :)
>
>I will advise ;)

Good new I have one (just met a small pb with se terminator: apparently fixed
now).

>>1. Use debootstrap to build a chroot (/mnt/chroot)
>
>BTW which install should I install: man debootstrap give the fllowing example
>deboostrap woody ./woody-chroot http://ftp.cx.debian.org/debian
>
>Well not familiar with debootstrap but I presume that ./woody-chroot would
>be here /mnt/chroot and ftp.cx.debian.org my nearest debian repository.

>But my question is: would you like I build a woody or would you prefer a
>sarge?

For the moment I tested with sarge ended with:
"I: Base system installed successfully."

:)

let me know anyway if you would prefer woody, it doesn't required so much
time :) 

>>2. Compile glibc with --prefix=/mnt/chroot

I am going on...

Joel


----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
http://reg.tiscali.be/default.asp?lg=fr





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On Tue, Mar 09, 2004 at 02:49:44PM +0100, Joel Soete wrote:
> >BTW which install should I install: man debootstrap give the fllowing example
> >deboostrap woody ./woody-chroot http://ftp.cx.debian.org/debian
> >But my question is: would you like I build a woody or would you prefer a
> >sarge?
> 
> For the moment I tested with sarge ended with:
> "I: Base system installed successfully."
> 
> :)
> 
> let me know anyway if you would prefer woody, it doesn't required so much
> time :) 

Joel,

Both unstable, testing, and stable should technically be tested with the
new glibc :) You can test with whichever you like right now.

Never *ever* install glibc on a running system, always install to the
chroot, and jump into the chroot.

c.



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> >>2. Compile glibc with --prefix=/mnt/chroot

 Shouldn't this be --prefix=/usr then make install_root=/mnt/chroot install?

Jim


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On Tue, Mar 09, 2004 at 10:07:54AM -0500, James Morrison wrote:
>  Shouldn't this be --prefix=/usr then make install_root=/mnt/chroot install?

Yes, you can go that way, I think just prefix works aswell.
Unless you have seen this fail before?

Glibc doesn't do any path mangling so far as I know.

c.



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> But what I'm wondering about is why the Silicon Image driver
> (always) detects the Seagate ST311022A hard drive as "TS130220A2".

Bytes are swapped.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Mon, 8 Mar 2004, Randolph Chung wrote:

> > But what I'm wondering about is why the Silicon Image driver
> > (always) detects the Seagate ST311022A hard drive as "TS130220A2".
> > Since it uses mmio instead of PIO as the other drivers, maybe there is
> > some big-endian problem in the Linux/PA-RISC mmio code? But then this
> > problem must be somewhere in the IDE code, since all mmio in general
> > seems to be working fine!
>
> oh, for mmio you need to fix the macros in include/asm-parisc/ide.h. the
> ones in io.c are for pio access. the mmio ones are new, i think, and
> haven't been fixed properly (__ide_mm_insw, etc) -- you can try
> replacing readw with __raw_readw, etc.

I also changed readl, writew and writel accordingly (for 2.6.4-rc1-pa3)

> can you also try the native-mode fixup? something like this (sorry
> it's not in patch format, my tree is a bit of a mess right now and it's
> late....)

Did that too, and had some success!

Now the siimage driver detects the hard drive correctly as "ST311022A" and
also sees the partition. Even mounting works, but I see lots of
"hda: lost interrupt" messages and it takes forever (several minutes) to
mount.

So I now got as far with the siimage driver as with the promise driver.
Both somewhat work, but there is a interrupt delivery problem.


===========

But NOW I have some very weird problem for you!

I also compiled a kernel with the same changes to ide.h and pci.c,
but this time using the NS87415 driver (onboard IDE of the C3000).

I doubt that the pci.c and ide.h changes contribute to the mystery, but I
could not verify  it yet by compiling a unpatched, vanilla linux-2.6.4-rc1-pa3
kernel.

Anyway, the IDE hard drive works with the onboard IDE controller of the C3000!


... Well, not 100%. Let me explain. The mystery is:

IDE works fine (without DMA support, like in the 2.4 kernels), as long as
I interrupt the automatic boot up and to a "sea" followed by a "bo pri".

If I just start the machine and don't interrupt the automatic boot up,
it will cause a HPMC. Also if I do interrupt the automatic boot up,
and just do a "bo pri" WITHOUT a "sea" first, it will also cause a HPMC.

This is 100% reproduceable. I rebooted the machine 6 times without
interruption of the boot up sequence, and 7 times I interrupted and
did a "sea" inbetween, and every time the same result.

Just to be sure I also did the following:

- Sometimes I rebooted several times after each other without interrupting
  the boot sequence, and I every time got a HPMC.
- Sometimes I interrupted twice in a row and did a "sea" and IDE worked
  every time.
- Sometimes I soft rebooted instead of hitting the power button (power cycle),
  and every time it was the same result: it only works when I do "sea"
  at the PDC.

BTW, I have "AutoSearch ON".

So it seems "sea" is initializing the IDE card or some PCI registers,
and IDE works. Without it it causes a HPMC.

Perhaps this is related with the (possible) problem in the PCI config
accessor functions (as Grant suspects).


Randolph, it might be even the case that IDE is also working for you
and your 2.6 kernel you are experimenting with, if you just do a "sea"
before booting palo/linux.
Maybe the onboard IDE controller was working all time with previous 2.6
kernels, but I didn't notice it since I didn't do a "sea" back then ...



Further info (boot logs etc.) can be found here:
http://www.cs.ucc.ie/~xam/ide/


Thanks for your attention,
  Max


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Carlos O'Donell <carlos@baldric.uwo.ca> writes:

> On Tue, Mar 09, 2004 at 10:07:54AM -0500, James Morrison wrote:
> >  Shouldn't this be --prefix=/usr then make install_root=/mnt/chroot install?
> 
> Yes, you can go that way, I think just prefix works aswell.
> Unless you have seen this fail before?
> 
> Glibc doesn't do any path mangling so far as I know.
> 
> c.

 Humm, it may be a Hurd thing where libc needs the correct prefix.

Jim


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Subject: =?ISO-8859-1?Q?Re=3A=20=5Bparisc=2Dlinux=5D=20=09RE=3A=20New=20glibc=20patches=202004=2D03=2D08=2C=20fixes=20GLRO=20changes=2E?=
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Hi Carlos,

>Both unstable, testing, and stable should technically be tested with the
>new glibc :) You can test with whichever you like right now.
>
>Never *ever* install glibc on a running system, always install to the
>chroot, and jump into the chroot.

Yes I read the hot but interesting thread "Latest Glibc from CVS has segmentation
problems"

Thanks for remind,
    Joel


----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
http://reg.tiscali.be/default.asp?lg=fr





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On Mon, Mar 08, 2004 at 11:29:17PM -0800, Randolph Chung wrote:
...
> Grant tells me that he suspects there's a bug somewhere in the pci
> config accessor functions tho...

After getting some sleep, I'm convinced the lba_pci.c cfg accessors
are wrong. The following patch should fix the write path and IIRC,
Randolph already tried this out.

Two remaining issues:
1) I still need to figure out why the "TR4PLUS" code path doesn't work
   for config space read function. It still crashes with changes
   similar to the write path.

2) Both "astro" based workstations and servers provide PCI config
   accessors via PDC. A patch to support those was submitted a month
   or so ago but I haven't heard back if the submitter could/would
   apply the requested changes.

thanks,
grant

Index: drivers/parisc/lba_pci.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/lba_pci.c,v
retrieving revision 1.9
diff -u -p -r1.9 lba_pci.c
--- a/drivers/parisc/lba_pci.c	4 Feb 2004 16:31:16 -0000	1.9
+++ b/drivers/parisc/lba_pci.c	9 Mar 2004 06:57:06 -0000
@@ -613,13 +612,14 @@ static int lba_cfg_write(struct pci_bus 
 	/* Basic Algorithm */
 	LBA_CFG_TR4_ADDR_SETUP(d, tok | pos);
 	switch(size) {
-	case 1: WRITE_REG8 (data, d->hba.base_addr + LBA_PCI_CFG_DATA);
+	case 1: WRITE_REG8 (data, d->hba.base_addr + LBA_PCI_CFG_DATA + (pos & 3));
 		   break;
-	case 2: WRITE_REG16(data, d->hba.base_addr + LBA_PCI_CFG_DATA);
+	case 2: WRITE_REG16(data, d->hba.base_addr + LBA_PCI_CFG_DATA + (pos & 2));
 		   break;
 	case 4: WRITE_REG32(data, d->hba.base_addr + LBA_PCI_CFG_DATA);
 		   break;
 	}
+	/* flush posted write */
 	lba_t32 = READ_REG32(d->hba.base_addr + LBA_PCI_CFG_ADDR);
 	return 0;
 }


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On Mon, Mar 08, 2004 at 10:36:15PM -0700, Grant Grundler wrote:
> On Mon, Mar 08, 2004 at 12:28:37PM +0100, Andy Walker wrote:
> > Why is 8/12 (0x00089) reported as unknown in the device table and in
> > proc/interrupts? Its the Zalon HVD SCSI.
> ...
> > 6. unknown device at 0xfff8c000 [8/12] { 4, 0x0, 0x03c, 0x00089 }
> 
> It means we don't have an entry for Zalon in arch/parisc/kernel/hardware.c
> Can you submit a patch for that?
> 
> (I confess: I'm being very lazy tonight and don't want to figure
> what needs to go into the hardware.c array)

*grumble*.  I changed the output format so you could simply copy and paste
it into hardware.c!  That's exceptionally lazy of you :-P

(you can tell boot logs that predate this change because they don't use 
{ } around the numbers).

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Tue, Mar 09, 2004 at 12:27:31PM +0100, Andy Walker wrote:
> Try this then. I just followed the pattern for B160L, C110 et. al.

Thanks, committed.

> There are other issues with the hardware.c array though. I guess they're
> not critical, and I've no idea how to resolve them as they seem to
> indicate duplication on HP's part. I guess this is old news:
> 
> 1. Merlin+ 132 Dino PS/2 Port at 0xfff81000 [1] { 10, 0x0, 0x022, 0x00096 }
> 2. Merlin+ 132 Dino RS-232 at 0xfff83000 [3] { 10, 0x0, 0x022, 0x0008c }
> 5. Coral SGC Graphics at 0xf4000000 [8/8] { 10, 0x0, 0x004, 0x00077 }
> 19. Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 0x00085},
>    additional addresses: 0xf0011000
> 
> - Merlin+ 132 is B132L+, as far as I know. But this machine is
>   a plain Merlin/B132L. The Dino ports are marked Merlin+. Weird.
>   Could this imply mean Dino was upgraded to a non-broken rev. using
>   Merlin+ parts? There are separate items in hardware.c for 'Merlin
>   132 Dino PS/2 Port', and 'Merlin 132 Dino RS-232' but these don't
>   match.

Dunno about that one.  It doesn't seem terribly important really ;-)

> - what's listed as 'Coral SGC Graphics' is actually an A4071B_LZ GSC
>   card, aka. HCRX-24 with hardware acceleration board. No separate items
>   in hardware.c for any of A407[01][AB] or H?CRX-(8|24).
> 
> - what's listed as 'Gecko GSC Core Graphics' on my machine is actually
>   the 'Merlin 132 Core Graphics' i.e. the builtin Vis-EG. There is a
>   separate item in hardware.c for 'Merlin 132 Core Graphics' but it
>   doesn't match.

Yeah, the Graphics lab were pretty slap-dash about using the correct
versions on things.  This is something we've been living with since
the earliest days of the port.  Someone who was motivated might want to
collect information from a bunch of machines and fix it up.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Dienstag, 9. Mrz 2004 11:33, Andy Walker wrote:
> I'm just about to give this a try. The reason these weren't enabled is
> that menuconfig was a bit non-intuitive (to me at least). Maybe I was
> just being paranoid, but when I selected ATKBD or MOUSE_PS2 then the GSC
> PS/2 item got closed up and I didn't know whether it was on or off. That
> scared me and I assumed that selecting GSC PS/2 support would enable
> everything else I needed. Compiling now, but I won't be able to test
> until I get home from work and actually get my hands on the keyboard/mouse.

Hi Andy,

I agree, that this behaviour seems somehow little strange. Thibaut Varene
complained too.
But on the other side without this auto-enablement of the GSC PS/2 controller
users maybe enable PS/2 mouse and/or PS/2 keyboard and miss enabling the
GSC PS/2 controller too - with the result, that neither keyboard or mouse would
work when the kernel is booted....

Personally I prefer the automatic enablement. Even on iA32 this is the default now.

Best regards,
Helge


From - Thu Nov 08 21:31:12 2018
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From: "Andy Walker" <ajwalker@broadpark.no>
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Subject: Re: [parisc-linux] No PS2 keyboard/mouse on B132L, 2.6.[34]
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To: "Helge Deller" <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:21036

> On Dienstag, 9. Mrz 2004 11:33, Andy Walker wrote:
> Hi Andy,
>
> I agree, that this behaviour seems somehow little strange. Thibaut Varene
> complained too.
> But on the other side without this auto-enablement of the GSC PS/2
> controller
> users maybe enable PS/2 mouse and/or PS/2 keyboard and miss enabling the
> GSC PS/2 controller too - with the result, that neither keyboard or mouse
> would
> work when the kernel is booted....
>
> Personally I prefer the automatic enablement. Even on iA32 this is the
> default now.
>
> Best regards,
> Helge
>

Helge,

Glad to report that the keyboard is now working. No mouse yet, but I
need to try it without the KVM in the way as that's likely to be the
problem. Perhaps I need .proto=bare or .proto=imps2.
At the moment I get:

serio: GSC PS2 keyboard port at 0xffd08000 irq 69 @ parisc8:16:7
input: AT Raw Set 2 keyboard on parisc8:16:7
serio: GSC PS2 mouse port at 0xffd08100 irq 69 @ parisc8:16:8
gscps2.c: timeout - could not write byte 0xed
gscps2.c: sending byte 0xed failed.

cat /dev/misc/psaux and wobbling the mouse gives nothing.

cheers,
-Andy





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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] No PS2 keyboard/mouse on B132L, 2.6.[34]
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On Tue, Mar 09, 2004 at 09:04:00PM +0000, Matthew Wilcox wrote:
> > (I confess: I'm being very lazy tonight and don't want to figure
> > what needs to go into the hardware.c array)
> 
> *grumble*.  I changed the output format so you could simply copy and paste
> it into hardware.c!  That's exceptionally lazy of you :-P

/me points at garfield

Isn't nice to know there's always someone better at something
than one's self? :^P

> (you can tell boot logs that predate this change because they don't use 
> { } around the numbers).

Yup - I remember you making the change and knew it should be fairly easy...
thus I was confident someone else could do it.
(was that a good excuse or what? Just made that one up :^)

thanks,
grant


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Hi Carlos,

Here are the news:

(first of all sorry for delay but I have temporarely have to exchange my
N4k for a b180 so it take a bit more time)

The glibc cvs 2.3.3 cvs dated 20040308 + your patch compiles well (just this
time I enable profiling) :).

I also install it on /mnt/chroot (according James method, just to test).

As I foreseen to use this disk to other test on the N4k, I grab the list
of packages installed (dpkg --get-selection > /mnt/chroot/var/tmp/Selection.doc)
and chroot to /mnt/chroot to install previously mentioned pkg list. All works
fine (just 3 pkg failled to install because no /proc available in chroot).

In the same time I drive a make -k check and just get additional Errors:
[...]
make[2]: *** [/Develop/parisc-linux/build/glibc/libio/tst-mmap-eofsync.out]
Error 1
make[2]: *** [/Develop/parisc-linux/build/glibc/libio/tst-mmap-fflushsync.out]
Error 1
make[1]: *** [libio/tests] Error 2
make[2]: [/Develop/parisc-linux/build/glibc/posix/annexc.out] Error 1 (ignored)
make[2]: *** [/Develop/parisc-linux/build/glibc/elf/multiload.o] Error 1
make[2]: *** [/Develop/parisc-linux/build/glibc/elf/origtest.o] Error 1
[...]

I have two hypothesis:
a. it is the first time I added enable-profile;
b. I forget to build first gcc(3.3) tool with your gcc patch (gcc/config/pa/fptr.c)

Now, 2.6.4-rc3-pa0 is just available, I will so try first to build it in
the chroot disk...

hth,
    Joel


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Subject: [parisc-linux] Anyone still caring about 2.4?
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I was just looking at a 2.4 problem for lamont so I went back to a 2.4
tree I had lying around.  I found this diff:

Index: mm/memory.c
===================================================================
RCS file: /var/cvs/linux-2.4/mm/memory.c,v
retrieving revision 1.25
diff -u -p -r1.25 memory.c
--- a/mm/memory.c       1 Dec 2003 22:52:15 -0000       1.25
+++ b/mm/memory.c       1 Dec 2003 23:08:32 -0000
@@ -569,12 +569,7 @@ int map_user_kiobuf(int rw, struct kiobu
                return err;
        }
        iobuf->nr_pages = err;
-       while (pgcount--) {
-               /* FIXME: flush superflous for rw==READ,
-                * probably wrong function for rw==WRITE
-                */
-               flush_dcache_page(iobuf->maplist[pgcount]);
-       }
+       flush_cache_range(mm, va, va + len);
        dprintk ("map_user_kiobuf: end OK\n");
        return 0;
 }

Don't remember why I made it or whether it's right.  Thought I'd throw
it out to the mailing list rather than just delete it.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Hi Carlos,


>Now, 2.6.4-rc3-pa0 is just available, I will so try first to build it in
>the chroot disk...

And finaly, it compiles well and even boot well with the original config.

(I just try to boot with chroot disk but it seems that I still forget some
config as nic and getty on ttyS0 :( ; so I will continu tomorrow and try
to restart X on this b180 (I don't yet look for a quick and dirty howto use
Xnest) ).

hth,
    Joel




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-------------------------------1078952729
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Hello
I have a c360 computer and am interested in getting linux to work on it. I  
currently have an fx2 graphics card in it and that does not give me X support. 
I  was wondering what graphics card I should get that will give me X support 
but  also 32-bit colour or 24-bit colour and a resaltution of 1280x1024 I think 
that  is the right numbers it is round about there anyway. I just need 2d 
support I am  not doing any 3d. Could you give me any advice. I know the 
visualize eg  does work and is that a good card to get.
Daniel

-------------------------------1078952729
Content-Type: text/html; charset="US-ASCII"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; charset=3DUS-ASCII">
<META content=3D"MSHTML 6.00.2800.1400" name=3DGENERATOR></HEAD>
<BODY id=3Drole_body style=3D"FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY:=20=
Arial"=20
bottomMargin=3D7 leftMargin=3D7 topMargin=3D7 rightMargin=3D7><FONT id=3Drol=
e_document=20
face=3DArial color=3D#000000 size=3D2>
<DIV>Hello</DIV>
<DIV>I have a c360 computer and am interested in getting linux to work on it=
. I=20
currently have an fx2 graphics card in it and that does not give me X suppor=
t. I=20
was wondering what graphics card I should get that will give me X support bu=
t=20
also 32-bit colour or 24-bit colour and a resaltution of 1280x1024 I think t=
hat=20
is the right numbers it is round about there anyway. I just need 2d support=20=
I am=20
not doing any 3d. Could you give me any advice.&nbsp;I know the visualize eg=
=20
does work and is that a good card to get.</DIV>
<DIV>Daniel</DIV></FONT></BODY></HTML>

-------------------------------1078952729--


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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ns87415 (superio) support for 2.6.x
Date: Wed, 10 Mar 2004 14:48:16 -0800
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Xref: news.gmane.org gmane.linux.ports.parisc:21042

This patch fixes ns87415 to work on suckyio-based boxes. the devic
e reports that dma is enabled, but from the performance we get it 
looks like something is still not quite right (we only see ~3MB/s)

Patch is against 2.6.4-rc3-pa5....  tested on c3000 and c3750. 
(Thanks Max.)

Any comments on the hooks that are needed in the generic ns87415 
driver to make this work?

Also, should we enable native mode for all ide devices discovered 
and not just ns87415?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

Index: arch/parisc/kernel/pci.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/pci.c,v
retrieving revision 1.13
diff -u -p -r1.13 pci.c
--- a/arch/parisc/kernel/pci.c	4 Feb 2004 16:31:15 -0000	1.13
+++ b/arch/parisc/kernel/pci.c	10 Mar 2004 22:42:05 -0000
@@ -21,6 +21,7 @@
 #include <asm/io.h>
 #include <asm/system.h>
 #include <asm/cache.h>		/* for L1_CACHE_BYTES */
+#include <asm/superio.h>
 
 #define DEBUG_RESOURCES 0
 #define DEBUG_CONFIG 0
@@ -145,9 +146,13 @@ char *pcibios_setup(char *str)
 	return str;
 }
 
-
 /* Used in drivers/pci/quirks.c */
-struct pci_fixup pcibios_fixups[] = { {0} };
+struct pci_fixup pcibios_fixups[] = { 
+#ifdef CONFIG_SUPERIO
+	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_NS,	PCI_DEVICE_ID_NS_87415,	superio_fixup_pci },
+#endif
+	{ 0 }
+};
 
 
 /*
Index: drivers/ide/pci/ns87415.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/ide/pci/ns87415.c,v
retrieving revision 1.13
diff -u -p -r1.13 ns87415.c
--- a/drivers/ide/pci/ns87415.c	28 Feb 2004 01:50:36 -0000	1.13
+++ b/drivers/ide/pci/ns87415.c	10 Mar 2004 22:42:07 -0000
@@ -24,6 +24,9 @@
 #include <linux/init.h>
 
 #include <asm/io.h>
+#ifdef CONFIG_SUPERIO
+#include <asm/superio.h>
+#endif
 
 #include "ns87415.h"
 
@@ -130,6 +133,13 @@ static int ns87415_ide_dma_check (ide_dr
 	if (drive->media != ide_disk)
 		return HWIF(drive)->ide_dma_off_quietly(drive);
 	return __ide_dma_check(drive);
+}
+
+static void __init init_iops_ns87415(ide_hwif_t *hwif)
+{
+#ifdef CONFIG_SUPERIO
+	superio_ide_init_iops(hwif);
+#endif
 }
 
 static void __init init_hwif_ns87415 (ide_hwif_t *hwif)
Index: drivers/ide/pci/ns87415.h
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/ide/pci/ns87415.h,v
retrieving revision 1.2
diff -u -p -r1.2 ns87415.h
--- a/drivers/ide/pci/ns87415.h	8 Oct 2003 20:52:23 -0000	1.2
+++ b/drivers/ide/pci/ns87415.h	10 Mar 2004 22:42:07 -0000
@@ -5,6 +5,7 @@
 #include <linux/pci.h>
 #include <linux/ide.h>
 
+static void init_iops_ns87415(ide_hwif_t *);
 static void init_hwif_ns87415(ide_hwif_t *);
 
 static ide_pci_device_t ns87415_chipsets[] __devinitdata = {
@@ -13,7 +14,7 @@ static ide_pci_device_t ns87415_chipsets
 		.device		= PCI_DEVICE_ID_NS_87415,
 		.name		= "NS87415",
 		.init_chipset	= NULL,
-		.init_iops	= NULL,
+		.init_iops	= init_iops_ns87415,
 		.init_hwif	= init_hwif_ns87415,
 		.channels	= 2,
 		.autodma	= AUTODMA,
Index: drivers/parisc/superio.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/superio.c,v
retrieving revision 1.5
diff -u -p -r1.5 superio.c
--- a/drivers/parisc/superio.c	21 Dec 2003 13:13:11 -0000	1.5
+++ b/drivers/parisc/superio.c	10 Mar 2004 22:42:07 -0000
@@ -69,11 +69,15 @@
 #include <linux/termios.h>
 #include <linux/tty.h>
 #include <linux/serial_core.h>
+#include <linux/delay.h>
+#include <linux/ide.h>
 #include <asm/io.h>
 #include <asm/hardware.h>
 #include <asm/irq.h>
 #include <asm/superio.h>
 
+#define SUPERIO_IDE_MAX_RETRIES 25
+
 static struct superio_device sio_dev;
 
 
@@ -161,7 +165,6 @@ superio_init(struct superio_device *sio)
 	printk (KERN_INFO "SuperIO: Found NS87560 Legacy I/O device at %s (IRQ %i) \n",
 		pci_name(pdev),pdev->irq);
 
-	/* Find our I/O devices */
 	pci_read_config_dword (pdev, SIO_SP1BAR, &sio->sp1_base);
 	sio->sp1_base &= ~1;
 	printk (KERN_INFO "SuperIO: Serial port 1 at 0x%x\n", sio->sp1_base);
@@ -472,6 +475,78 @@ superio_get_ide_irq(void)
 }
 
 EXPORT_SYMBOL(superio_get_ide_irq);
+
+static u8 superio_ide_inb (unsigned long port);
+static unsigned long superio_ide_status[2];
+static unsigned long superio_ide_select[2];
+static unsigned long superio_ide_dma_status[2];
+
+void superio_fixup_pci(struct pci_dev *pdev)
+{
+	u8 prog;
+	u16 cmd;
+
+	pci_read_config_word(pdev, PCI_COMMAND, &cmd);
+	cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MASTER);
+	pci_write_config_word(pdev, PCI_COMMAND, cmd);
+
+	pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
+	pci_write_config_byte(pdev, PCI_CLASS_PROG, prog | 0x5);
+	pdev->class |= 0x5;
+
+	pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
+
+	printk("PCI: Enabled native mode for NS87415 (pif=0x%x)\n", prog);
+}
+
+/* Because of a defect in Super I/O, all reads of the PCI DMA status 
+ * registers, IDE status register and the IDE select register need to be 
+ * retried
+ */
+static u8 superio_ide_inb (unsigned long port)
+{
+	if (port == superio_ide_status[0] ||
+	    port == superio_ide_status[1] ||
+	    port == superio_ide_select[0] ||
+	    port == superio_ide_select[1] ||
+	    port == superio_ide_dma_status[0] ||
+	    port == superio_ide_dma_status[1]) {
+		u8 tmp;
+		int retries = SUPERIO_IDE_MAX_RETRIES;
+
+		/* printk(" [ reading port 0x%x with retry ] ", port); */
+
+		do {
+			tmp = inb(port);
+		} while (tmp == 0 && retries-- > 0);
+
+		return tmp;
+	}
+
+	return inb(port);
+}
+
+void __init superio_ide_init_iops (struct hwif_s *hwif)
+{
+	u32 base, dmabase;
+	u8 tmp;
+	struct pci_dev *pdev = hwif->pci_dev;
+	u8 port = hwif->channel;
+
+	base = pci_resource_start(pdev, port * 2) & ~3;
+	dmabase = pci_resource_start(pdev, 4) & ~3;
+
+	superio_ide_status[port] = base + IDE_STATUS_OFFSET;
+	superio_ide_select[port] = base + IDE_SELECT_OFFSET;
+	superio_ide_dma_status[port] = dmabase + (!port ? 2 : 0xa);
+	
+	/* Clear error/interrupt, enable dma */
+	tmp = superio_ide_inb(superio_ide_dma_status[port]);
+	outb(tmp | 0x66, superio_ide_dma_status[port]);
+
+	/* We need to override inb to workaround a SuperIO errata */
+	hwif->INB = superio_ide_inb;
+}
 
 static int __devinit superio_probe(struct pci_dev *dev, const struct pci_device_id *id)
 {
Index: include/asm-parisc/superio.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/superio.h,v
retrieving revision 1.2
diff -u -p -r1.2 superio.h
--- a/include/asm-parisc/superio.h	21 Dec 2003 13:13:10 -0000	1.2
+++ b/include/asm-parisc/superio.h	10 Mar 2004 22:42:11 -0000
@@ -81,9 +81,13 @@ struct superio_device {
 	|| ((x)->device == PCI_DEVICE_ID_NS_87560_LIO) \
 	|| ((x)->device == PCI_DEVICE_ID_NS_87560_USB) ) )
 
+struct hwif_s;
+
 extern void superio_inform_irq(int irq);
 extern void superio_serial_init(void);		/* called by rs_init() */
 extern int superio_fixup_irq(struct pci_dev *pcidev); /* called by iosapic */
 extern int superio_get_ide_irq(void);
+extern void superio_fixup_pci(struct pci_dev *pdev);
+extern void superio_ide_init_iops (struct hwif_s *hwif);
 
 #endif /* _PARISC_SUPERIO_H */


From - Thu Nov 08 21:31:12 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] RE: [parisc-linux-cvs] tty[2..6]: respawning too
	fast with 2.6
Date: Thu, 11 Mar 2004 09:21:14 +0100
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Please apologies me for wrong m-l addressing.

Joel

> -- Original Message --
> Date: Thu, 11 Mar 2004 08:35:57 +0100
> From: "Joel Soete" <soete.joel@tiscali.be>
> To: parisc-linux-cvs@lists.parisc-linux.org
> Subject: [parisc-linux-cvs] tty[2..6]: respawning too fast with 2.6
> 
> 
> Hi All,

What do I miss: since runing 2.6 (even though the last 2.6.4-rc3-pa0) I
got messages:
"Mar 11 06:51:37 palinux init: Id "3" respawning too fast: disabled for 5
minutes
Mar 11 06:51:38 palinux init: Id "5" respawning too fast: disabled for  5
minutes
Mar 11 06:51:39 palinux init: Id "2" respawning too fast: disabled for 5
minutes
Mar 11 06:51:39 palinux init: Id "6" respawning too fast: disabled for 5
minutes
Mar 11 06:51:39 palinux init: Id "4" respawning too fast: disabled for 5
minutes"

the inittab file containing:
[snip]
# The default runlevel.
id:2:initdefault:

1:2345:respawn:/sbin/getty 38400 tty1
2:23:respawn:/sbin/getty 38400 tty2
3:23:respawn:/sbin/getty 38400 tty3
4:23:respawn:/sbin/getty 38400 tty4
5:23:respawn:/sbin/getty 38400 tty5
6:23:respawn:/sbin/getty 38400 tty6
[snip]

and the kernel config (the default one) contains well the support for 256
pty?

Thanks in advance for advise,
    Joel





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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: RE: [parisc-linux] ns87415 (superio) support for 2.6.x
Date: Thu, 11 Mar 2004 13:59:49 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:21044

Hi Randolph,

> This patch fixes ns87415 to work on suckyio-based boxes. the device
> reports that dma is enabled, but from the performance we get it 
>looks like something is still not quite right (we only see ~3MB/s)
>
>Patch is against 2.6.4-rc3-pa5....  tested on c3000 and c3750. 
>(Thanks Max.)

I just build the new 2.6.4-rc-pa6 (in which this patch is included also if
i didn't miss anything?) and boot it successfully on my b2k. Any way I noticed
a 'kernel bug()' in dmesg:

Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
kernel BUG at include/asm/ide.h:30!
Kernel addresses on the stack:
 [<10124bf8>] printk+0x188/0x1c8
 [<101036b8>] dump_stack+0x18/0x24
 [<1023e6dc>] init_hwif_data+0xd0/0x2e8
 [<101eaac4>] create_dir+0x4c/0x64
 [<104385bc>] init_ide_data+0x44/0x58
 [<10438fb0>] ide_init+0x44/0x80
 [<1042c780>] do_initcalls+0x58/0xf8
 [<101001d0>] init+0x28/0xd4
 [<10109c5c>] ret_from_kernel_thread+0x1c/0x24

kernel BUG at include/asm/ide.h:30!
Kernel addresses on the stack:
 [<10124bf8>] printk+0x188/0x1c8
 [<101036b8>] dump_stack+0x18/0x24
 [<1023e6dc>] init_hwif_data+0xd0/0x2e8
 [<101eaac4>] create_dir+0x4c/0x64
 [<104385c4>] init_ide_data+0x4c/0x58
 [<10438fb0>] ide_init+0x44/0x80
 [<1042c780>] do_initcalls+0x58/0xf8
 [<101001d0>] init+0x28/0xd4
 [<10109c5c>] ret_from_kernel_thread+0x1c/0x24

NS87415: IDE controller at PCI slot 0000:00:0e.0
NS87415: chipset revision 3
NS87415: 100% native mode on irq 103
    ide0: BM-DMA at 0x0900-0x0907, BIOS settings: hda:DMA, hdb:DMA
    ide1: BM-DMA at 0x0908-0x090f, BIOS settings: hdc:DMA, hdd:DMA
hda: LTN485S, ATAPI CD/DVD-ROM drive
Using anticipatory io scheduler
ide0 at 0xe00-0xe07,0xd02 on irq 103
hda: ATAPI 48X CD-ROM drive, 120kB Cache
Uniform CD-ROM driver Revision: 3.20


Thanks for your help,
    Joel

PS: this b2k is only equiped with a simple (readonly :O ) ide cdrom drive


----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
http://reg.tiscali.be/default.asp?lg=fr





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On Thu, Mar 11, 2004 at 01:59:49PM +0100, Joel Soete wrote:
> I just build the new 2.6.4-rc-pa6 (in which this patch is included also if
> i didn't miss anything?) and boot it successfully on my b2k. Any way I noticed
> a 'kernel bug()' in dmesg:
> 
> Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> kernel BUG at include/asm/ide.h:30!

ide_default_io_base()

Looks like we should just take out this BUG().  Randolph?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Subject: [parisc-linux] c360 and graphics card recommendations.
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-------------------------------1079015126
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I know the fx2 does not work. cos I read all about it. I have found out  that 
the vis eg works but does it work with 24-bit colour and a 1280x1024  
resalution. I was also wondering if a old nvidia card would work but have a  fealing 
they need the x86 bios. OH this is of course to get x server running. 
thanx for any advice
DAniel

-------------------------------1079015126
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; charset=3DUS-ASCII">
<META content=3D"MSHTML 6.00.2800.1400" name=3DGENERATOR></HEAD>
<BODY id=3Drole_body style=3D"FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY:=20=
Arial"=20
bottomMargin=3D7 leftMargin=3D7 topMargin=3D7 rightMargin=3D7><FONT id=3Drol=
e_document=20
face=3DArial color=3D#000000 size=3D2>
<DIV>I know the fx2 does not work. cos I read all about it. I have found out=
=20
that the vis eg works but does it work with 24-bit colour and a 1280x1024=20
resalution. I was also wondering if a old nvidia card would work but have a=20
fealing they need the x86 bios. OH this is of course to get x server running=
.=20
</DIV>
<DIV>&nbsp;</DIV>
<DIV>thanx for any advice</DIV>
<DIV>DAniel</DIV></FONT></BODY></HTML>

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SilverHampster@aol.com writes...

> I know the fx2 does not work. cos I read all about it. I have found out  that
> the vis eg works but does it work with 24-bit colour and a 1280x1024  
> resalution.

No. The VisEG hardware can only support 8-bit color(at up to 1600x1200). It 
also has support for something called Color Recovery in order to get more 
colors but support for that has only been implemented in the HP-UX Xserver 
and will probably never be done for Linux.

> I was also wondering if a old nvidia card would work but have a fealing 
> they need the x86 bios.

There has been lots of discussion on the mailing list about using PC 
graphics cards. Please search the list archives.(this should probably be 
added to the faq too) Short answer: it is possible for some cards, but I 
don't know if nvidia is one of them.

-- 
Matt Taggart        Linux and Open Source Lab
taggart@fc.hp.com   Hewlett-Packard




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On Wed, Mar 10, 2004 at 03:47:09PM +0100, Joel Soete wrote:
> The glibc cvs 2.3.3 cvs dated 20040308 + your patch compiles well (just this
> time I enable profiling) :).

Excellent.
 
> As I foreseen to use this disk to other test on the N4k, I grab the list
> of packages installed (dpkg --get-selection > /mnt/chroot/var/tmp/Selection.doc)
> and chroot to /mnt/chroot to install previously mentioned pkg list. All works
> fine (just 3 pkg failled to install because no /proc available in chroot).

Try binding your chroot if you want to expose your process list to the
chroot 'mount -o bind /proc /mnt/chroot/proc
 
> In the same time I drive a make -k check and just get additional Errors:
> [...]
> make[2]: *** [/Develop/parisc-linux/build/glibc/libio/tst-mmap-eofsync.out]
> Error 1
> make[2]: *** [/Develop/parisc-linux/build/glibc/libio/tst-mmap-fflushsync.out]
> Error 1

Your kernel is too old, jejb fixed these.

> make[1]: *** [libio/tests] Error 2
> make[2]: [/Develop/parisc-linux/build/glibc/posix/annexc.out] Error 1 (ignored)
> make[2]: *** [/Develop/parisc-linux/build/glibc/elf/multiload.o] Error 1
> make[2]: *** [/Develop/parisc-linux/build/glibc/elf/origtest.o] Error 1
> [...]

The 'annexc.out' is an expected failure. The other two failures are new
and unknown, they aren't segfaulting which is good (Error 1), they just
aren't completing for some reason. Most likely they are taking too long
and timeout before the 2 second maximum. If they *are* timing out, set
TIMEOUTFACTOR=10 or 100 in your environment, this scales the test
timeout.
 
> I have two hypothesis:
> a. it is the first time I added enable-profile;

No, profiling works.

> b. I forget to build first gcc(3.3) tool with your gcc patch (gcc/config/pa/fptr.c)

No, I fixed this in glibc such that gcc doesn't have to be recompiled.
If I hand't the userspace would have been *completely* broken, since
function pointer comparisons wouldn't have worked.
 
> Now, 2.6.4-rc3-pa0 is just available, I will so try first to build it in
> the chroot disk...

That should fix the mmap failures, please check to see if the other two
failures are timeout related.

c.



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C.,

>> As I foreseen to use this disk to other test on the N4k, I grab the list
>> of packages installed (dpkg --get-selection > mnt/chroot/var/tmp/Selection.doc)
>> and chroot to /mnt/chroot to install previously mentioned pkg list. All
works
>> fine (just 3 pkg failled to install because no /proc available in chroot
>> .
>
>Try binding your chroot if you want to expose your process list to the
>chroot 'mount -o bind /proc /mnt/chroot/proc

That works fine (thanks).
 
[snip]

>That should fix the mmap failures, please check to see if the other two
>failures are timeout related.

I now rebuild a 2.6.4-pa1 with this same libc  and reboot the system with
this kernel (you had right it was still runing an old 2.4.21-pa2 :( ) and
here are the make -k check results:
without TIMEOUTFACTOR:
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-float.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-double.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-ifloat.out] Error
1
make[1]: *** [math/tests] Error 2
make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/tst-strtod.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/bug-strtod.out] Error
1
make[1]: *** [stdlib/tests] Error 2
make[2]: *** [/Develop/parisc-linux/build/glibc/posix/tst-regex] Error 1
make[1]: *** [posix/tests] Error 2
make[2]: *** [/Develop/parisc-linux/build/glibc/linuxthreads/ex10] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/linuxthreads/ex11] Error
1
make[1]: *** [linuxthreads/tests] Error 2
make[2]: *** [/Develop/parisc-linux/build/glibc/elf/resolvfail] Error 1
make[2]: *** [/Develop/parisc-linux/build/glibc/elf/tst-tls13.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/elf/tst-dlmodcount.out] Error
139
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

with export TIMEOUTFACTOR=100

make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-float.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-double.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-ifloat.out] Error
1
make[1]: *** [math/tests] Error 2
make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/tst-strtod.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/bug-strtod.out] Error
1
make[1]: *** [stdlib/tests] Error 2
make[2]: *** [/Develop/parisc-linux/build/glibc/posix/tst-regex] Error 1
make[1]: *** [posix/tests] Error 2
make[2]: *** [/Develop/parisc-linux/build/glibc/linuxthreads/ex10] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/linuxthreads/ex11] Error
1
make[1]: *** [linuxthreads/tests] Error 2
make[2]: *** [/Develop/parisc-linux/build/glibc/elf/resolvfail] Error 1
make[2]: *** [/Develop/parisc-linux/build/glibc/elf/tst-dlmodcount.out] Error
139
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

So only [/Develop/parisc-linux/build/glibc/elf/tst-tls13.out] seems to be
related to TIMEOUTFACTOR

hth,
Joel

----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
http://reg.tiscali.be/default.asp?lg=fr





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Subject: Re: [parisc-linux] 	RE: New glibc patches 2004-03-08,
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On Fri, Mar 12, 2004 at 04:32:34PM +0100, Joel Soete wrote:
> with export TIMEOUTFACTOR=100
> 
> make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-float.out] Error 1
> make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-double.out] Error 1
> make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-ifloat.out] Error 1

Failure is OK.

> make[1]: *** [math/tests] Error 2
> make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/tst-strtod.out] Error 1
> make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/bug-strtod.out] Error 1

Failure is OK.

> make[1]: *** [stdlib/tests] Error 2
> make[2]: *** [/Develop/parisc-linux/build/glibc/posix/tst-regex] Error 1

I haven't seen this one before, what's the problem with the test?

> make[1]: *** [posix/tests] Error 2
> make[2]: *** [/Develop/parisc-linux/build/glibc/linuxthreads/ex10] Error 1
> make[2]: *** [/Develop/parisc-linux/build/glibc/linuxthreads/ex11] Error 1

These are new, usually means the compiler optimized something that it
shouldn't have optimized. Can you see what the error is? e.g. Look at
the out file.

> make[1]: *** [linuxthreads/tests] Error 2
> make[2]: *** [/Develop/parisc-linux/build/glibc/elf/resolvfail] Error 1

That's bad.

> make[2]: *** [/Develop/parisc-linux/build/glibc/elf/tst-dlmodcount.out] Error 139

This is worse, the program crashes.

> make[1]: *** [elf/tests] Error 2
> make: *** [check] Error 2

Yes. tst-tls13 should be the only failure affected by TIMEOUTFACTOR,
though I wasn't sure about the system you were running so I suggested
it.

c.



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do you have any more?



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Hi C.,

Ok I just mentioned know error to be complete :)

>> make[1]: *** [stdlib/tests] Error 2
>> make[2]: *** [/Develop/parisc-linux/build/glibc/posix/tst-regex] Error
1
>
>I haven't seen this one before, what's the problem with the rest?
>
>> make[1]: *** [posix/tests] Error 2
>> make[2]: *** [/Develop/parisc-linux/build/glibc/linuxthreads/ex10] Error
1
>> make[2]: *** [/Develop/parisc-linux/build/glibc/linuxthreads/ex11] Error
1
>
>These are new, usually means the compiler optimized something that it
>shouldn't have optimized. Can you see what the error is? e.g. Look at
>the out file.
>
>> make[1]: *** [linuxthreads/tests] Error 2
>> make[2]: *** [/Develop/parisc-linux/build/glibc/elf/resolvfail] Error
1
>
>That's bad.
>

Hmmm all output files realted to Error1 was empty because of:
hppa-linux-gcc -nostdlib -nostartfiles -o /Develop/parisc-linux/build/glibc/posix/tst-regex
 -Wl,-dynamic-linker=/lib/ld.so.1
/Develop/parisc-linux/build/glibc/csu/crt1.o /Develop/parisc-linux/build/glibc/csu/crti.o
`hppa-linux-gcc --print-file-name=crtbegin.o` /Develop/parisc-linux/build/glibc/posix/tst-regex.o
/Develop/parisc-linux/build/glibc/rt/librt.so  -Wl,-rpath-link=/Develop/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Develop/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/Develop/parisc-linux/build/glibc/nss:
/Develop/parisc-linux/build/glibc/nis:/Develop/parisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/build/glibc/linuxthreads
/Develop/parisc-linux/build/glibc/libc.so.6 /Develop/parisc-linux/build/glibc/libc_nonshared.a
-lgcc `hppa-linux-gcc --print-file-name=crtend.o` /Develop/parisc-linux/build/glibc/csu/crtn.o
/Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `pthread_create'
/Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `_pthread_cleanup_pop'
/Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `pthread_once'
/Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `_pthread_cleanup_push'
/Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `pthread_atfork'
collect2: ld returned 1 exit status
make[2]: *** [/Develop/parisc-linux/build/glibc/posix/tst-regex] Error 1

hppa-linux-gcc -nostdlib -nostartfiles -o /Develop/parisc-linux/build/glibc/linuxthreads/ex10
 -Wl,-dynamic-linker=/lib/ld.so.1
  /Develop/parisc-linux/build/glibc/csu/crt1.o /Develop/parisc-linux/build/glibc/csu/crti.o
`hppa-linux-gcc --print-file-name=crtbegin.o` /Develop/parisc-linux/build/glibc/linuxthreads/ex10.o
/Develop/parisc-linux/build/glibc/linuxthreads/libpthread.so /Develop/parisc-linux/build/glibc/linuxthreads/libpthread_nonshared.a
/Develop/parisc-linux/build/glibc/rt/librt.so  -Wl,-rpath-link=/Develop/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Develop/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/Develop/parisc-linux/build/glibc/nss:
/Develop/parisc-linux/build/glibc/nis:/Develop/parisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/build/glibc/linuxthreads
/Develop/parisc-linux/build/glibc/libc.so.6 /Develop/parisc-linux/build/glibc/libc_nonshared.a
-lgcc `hppa-linux-gcc --print-file-name=crtend.o` /Develop/parisc-linux/build/glibc/csu/crtn.o
/Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `pthread_atfork'
collect2: ld returned 1 exit status
make[2]: *** [/Develop/parisc-linux/build/glibc/linuxthreads/ex10] Error
1

hppa-linux-gcc -nostdlib -nostartfiles -o /Develop/parisc-linux/build/glibc/linuxthreads/ex11
 -Wl,-dynamic-linker=/lib/ld.so.1
  /Develop/parisc-linux/build/glibc/csu/crt1.o /Develop/parisc-linux/build/glibc/csu/crti.o
`hppa-linux-gcc --print-file-name=crtbegin.o` /Develop/parisc-linux/build/glibc/linuxthreads/ex11.o
/Develop/parisc-linux/build/glibc/linuxthreads/libpthread.so /Develop/parisc-linux/build/glibc/linuxthreads/libpthread_nonshared.a
/Develop/parisc-linux/build/glibc/rt/librt.so  -Wl,-rpath-link=/Develop/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Develop/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/Develop/parisc-linux/build/glibc/nss:
/Develop/parisc-linux/build/glibc/nis:/Develop/parisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/build/glibc/linuxthreads
/Develop/parisc-linux/build/glibc/libc.so.6 /Develop/parisc-linux/build/glibc/libc_nonshared.a
-lgcc `hppa-linux-gcc --print-file-name=crtend.o` /Develop/parisc-linux/build/glibc/csu/crtn.o
/Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `pthread_atfork'
collect2: ld returned 1 exit status
make[2]: *** [/Develop/parisc-linux/build/glibc/linuxthreads/ex11] Error
1

hppa-linux-gcc -nostdlib -nostartfiles -o /Develop/parisc-linux/build/glibc/elf/resolvfail
 -Wl,-dynamic-linker=/lib/ld.so.1     /Develop/parisc-linux/build/glibc/csu/crt1.o
/Develop/parisc-linux/build/glibc/csu/crti.o `hppa-linux-gcc --print-file-name=crtbegin.o`
/Develop/parisc-linux/build/glibc/elf/resolvfail.o /Develop/parisc-linux/build/glibc/dlfcn/libdl.so.2
/Develop/parisc-linux/build/glibc/linuxthreads/libpthread_nonshared.a /Develop/parisc-linux/build/glibc/linuxthreads/libpthread.so
 -Wl,-rpath-link=/Develop/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Develop/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/Develop/parisc-linux/build/glibc/nss:/Develop/parisc-linux/build/glibc/nis:/Develop
/parisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/build/glibc/linuxthreads
/Develop/parisc-linux/build/glibc/libc.so.6 /Develop/parisc-linux/build/glibc/libc_nonshared.a
-lgcc `hppa-linux-gcc --print-file-name=crtend.o` /Develop/parisc-linux/build/glibc/csu/crtn.o
/Develop/parisc-linux/build/glibc/linuxthreads/libpthread.so: undefined reference
to `_h_errno'
/Develop/parisc-linux/build/glibc/linuxthreads/libpthread.so: undefined reference
to `_res'
/Develop/parisc-linux/build/glibc/linuxthreads/libpthread.so: undefined reference
to `_errno'
collect2: ld returned 1 exit status
make[2]: *** [/Develop/parisc-linux/build/glibc/elf/resolvfail] Error 1

>> make [2]: *** [/Develop/parisc-linux/build/glibc/elf/tst-dlmodcount.out]
Error 139
>
>This is worse, the program crashes.
Yes:(
make[2]: *** [/Develop/parisc-linux/build/glibc/elf/tst-dlmodcount.out] Error
139
do_page_fault() pid=9891 command='ld.so.1' type=15 address=0x401aca28
vm_start = 0x40177000, vm_end = 0x4017c000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111 Not tainted
r00-03  00000000 41029750 40137993 bff01640
r04-07  40173088 00000000 00000010 00000004
r08-11  41029750 40152edc 40152f1c 40152e30
r12-15  00000000 40152edc 40152ee8 40152e30
r16-19  40152e30 40152edc 40152ec0 40173088
r20-23  00000001 00000001 401aca24 00000001
r24-27  00000001 4102a5d8 41029770 00020ed4
r28-31  00000048 00000049 bff01740 40137993
sr0-3   0000039f 0000039f 00000000 0000039f
sr4-7   0000039f 0000039f 0000039f 0000039f

IASQ: 0000039f 0000039f IAOQ: 4013c65b 4013c65f
 IIR: 0ec81093    ISR: 0000039f  IOR: 401aca28
 CPU:        0   CR30: 14584000 CR31: 1039c000
 ORIG_R28: 00000000
 IAOQ[0]: 0x4013c65b
 IAOQ[1]: 0x4013c65f
 RP(r2): 0x40137993

And here the only difference between this test and previous is the kernel
:(

On Monday (I don't have access to those system during the week-end), I can
try to compile a 2.4.25 and relaunch test. What is your opinion?

{ here are the packages upgraded today:
Get:1 http://ftp.de.debian.org unstable/main dpkg 1.10.20 [1123kB]
Get:2 http://ftp.de.debian.org unstable/main login 1:4.0.3-21 [269kB]
Get:3 http://ftp.de.debian.org unstable/main libncurses5-dev 5.4-2 [1087kB]
Get:4 http://ftp.de.debian.org unstable/main libncurses5 5.4-2 [309kB]
Get:5 http://ftp.de.debian.org unstable/main ncurses-bin 5.4-2 [236kB]
Get:6 http://ftp.de.debian.org unstable/main ncurses-base 5.4-2 [11.1kB]
Get:7 http://ftp.de.debian.org unstable/main debconf-i18n 1.4.16 [63.6kB]
Get:8 http://ftp.de.debian.org unstable/main debconf 1.4.16 [98.5kB]
Get:9 http://ftp.de.debian.org unstable/main dselect 1.10.20 [116kB]
Get:10 http://ftp.de.debian.org unstable/main passwd 1:4.0.3-21 [491kB]
Get:11 http://ftp.de.debian.org unstable/main bc 1.06-13 [69.7kB]
Get:12 http://ftp.de.debian.org unstable/main dc 1.06-13 [60.2kB]
Get:13 http://ftp.de.debian.org unstable/main dpkg-dev 1.10.20 [122kB]
Get:14 http://ftp.de.debian.org unstable/main libncursesw5 5.4-2 [320kB]
Get:15 http://ftp.de.debian.org unstable/main ncurses-term 5.4-2 [279kB]
Get:16 http://ftp.de.debian.org unstable/main base-config 2.15 [261kB]
Get:17 http://ftp.de.debian.org unstable/main debconf-utils 1.4.16 [32.5kB]
Get:18 http://ftp.de.debian.org unstable/main libaudiofile-dev 0.2.6-2 [132kB]
Get:19 http://ftp.de.debian.org unstable/main libaudiofile0 0.2.6-2 [85.5kB]
Get:20 http://ftp.de.debian.org unstable/main libxft2 2.1.2-6 [54.7kB]
Get:21 http://ftp.de.debian.org unstable/main libxml1 1:1.8.17-5 [249kB]
Get:22 http://ftp.de.debian.org unstable/main tasksel 1.45 [130kB]
}

>Yes. tst-tls13 should be the only failure affected by TIMEOUTFACTOR,
>though I wasn't sure about the system you were running so I suggested it.
>
Yes it is a b180 (n4k not anymore available for the moment :( )

hth beter,
Joel



----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
http://reg.tiscali.be/default.asp?lg=fr





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On Fri, Mar 12, 2004 at 06:33:11PM +0100, Joel Soete wrote:
> Hmmm all output files realted to Error1 was empty because of:
> hppa-linux-gcc -nostdlib -nostartfiles -o /Develop/parisc-linux/build/glibc/posix/tst-regex
>  -Wl,-dynamic-linker=/lib/ld.so.1
> /Develop/parisc-linux/build/glibc/csu/crt1.o /Develop/parisc-linux/build/glibc/csu/crti.o
> `hppa-linux-gcc --print-file-name=crtbegin.o` /Develop/parisc-linux/build/glibc/posix/tst-regex.o
> /Develop/parisc-linux/build/glibc/rt/librt.so  -Wl,-rpath-link=/Develop/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Develop/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/Develop/parisc-linux/build/glibc/nss:
> /Develop/parisc-linux/build/glibc/nis:/Develop/parisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/build/glibc/linuxthreads
> /Develop/parisc-linux/build/glibc/libc.so.6 /Develop/parisc-linux/build/glibc/libc_nonshared.a
> -lgcc `hppa-linux-gcc --print-file-name=crtend.o` /Develop/parisc-linux/build/glibc/csu/crtn.o
> /Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `pthread_create'
> /Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `_pthread_cleanup_pop'
> /Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `pthread_once'
> /Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `_pthread_cleanup_push'
> /Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `pthread_atfork'
> collect2: ld returned 1 exit status
> make[2]: *** [/Develop/parisc-linux/build/glibc/posix/tst-regex] Error 1

Are you sure you thread library was built correctly? Do you see those
symbols in libpthread? All those issues are related to libpthread being
broken somehow.
 
> make[2]: *** [/Develop/parisc-linux/build/glibc/elf/tst-dlmodcount.out] Error 139
> do_page_fault() pid=9891 command='ld.so.1' type=15 address=0x401aca28
> vm_start = 0x40177000, vm_end = 0x4017c000

Can you run the loader through gdb, and give an assembly dump around the
address where it crashes?

c.



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Hi,

there seems to be a dependency missing in Linux 2.6.4-pa2.

When I try to compile it and have STI_CONSOLE set to 'y', hence
sticore.c gets compiled, but accidently not setting
FRAMEBUFFER_CONSOLE to 'y' as well, kernel build ends in a link error
due to undefined symbols: find_font() called from sti_select_fbfont()
and another one I forgot to secure.

Investigation showed that the source of the problem is in
drivers/video/console/sticore.c:

koulutie!joey(pts/1):~/linux-2.6.4-pa2/drivers> find -name '*.c'|xargs grep sti_select_fbfont
./video/console/sticore.c:sti_select_fbfont( struct sti_cooked_rom *cooked_rom, char *fbfont_name )
./video/console/sticore.c:sti_select_fbfont(struct sti_cooked_rom *cooked_rom, char *fbfont_name)
./video/console/sticore.c:      if ((font = sti_select_fbfont(rom, font_name[index])))

And the missing function is defined in drivers/video/console/fonts.c:

koulutie!joey(pts/1):~/linux-2.6.4-pa2/drivers> find -name '*.c'|xargs grep find_font
[..]
./video/console/fonts.c: *      find_font - find a font
./video/console/fonts.c:struct font_desc *find_font(char *name)
./video/console/fonts.c:EXPORT_SYMBOL(find_font);
[..]

>From reading the help text of STI_CONSOLE, FRAMEBUFFER_CONSOLE and
FONTS I'm not sure STI_CONSOLE should depend on FONTS, though, but it
seems to use a function from fonts.c, which should be linked into
built-in.o

Adding it fixed the problem, though.

--- linux-2.6.4-pa2/drivers/video/console/Kconfig.orig	Sat Mar 13 16:17:27 2004
+++ linux-2.6.4-pa2/drivers/video/console/Kconfig	Sat Mar 13 16:23:30 2004
@@ -67,7 +67,7 @@
 #  bool 'IODC console' CONFIG_IODC_CONSOLE
 config STI_CONSOLE
         tristate "STI text console" 
-        depends on PARISC
+        depends on PARISC && FRAMEBUFFER_CONSOLE
         default y
         help
           The STI console is the builtin display/keyboard on HP-PARISC

Regards,

	Joey

-- 
All language designers are arrogant.  Goes with the territory...
	-- Larry Wall


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From: lamont@smallone.mmjgroup.com (LaMont Jones)
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Any objections to this patch?  It removes a duplicated calculation,
and has the added advantage of surviving my woody build environment...

lamont

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Index: arch/parisc/kernel/real2.S
===================================================================
RCS file: /var/cvs/linux-2.4/arch/parisc/kernel/real2.S,v
retrieving revision 1.8
diff -u -r1.8 real2.S
--- a/arch/parisc/kernel/real2.S	18 Sep 2003 16:09:09 -0000	1.8
+++ b/arch/parisc/kernel/real2.S	13 Mar 2004 17:25:38 -0000
@@ -32,6 +32,7 @@
 
 save_cr_space:
 	.block	REG_SZ * N_SAVED_REGS
+save_cr_end:
 
 
 /************************ 32-bit real-mode calls ***********************/
@@ -129,7 +130,7 @@
 	nop
 
 restore_control_regs:
-	load32	PA(save_cr_space+(N_SAVED_REGS*REG_SZ)), %r26
+	load32	PA(save_cr_end), %r26
 	POP_CR(%cr15, %r26)
 	POP_CR(%cr31, %r26)
 	POP_CR(%cr30, %r26)

--huq684BweRXVnRxX--


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On Sat, Mar 13, 2004 at 10:27:03AM -0700, LaMont Jones wrote:
> Any objections to this patch?  It removes a duplicated calculation,
> and has the added advantage of surviving my woody build environment...

Looks good to me.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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From - Thu Nov 08 21:31:14 2018
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 	RE: New glibc patches 2004-03-08, fixes GLRO
	changes.
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To: Carlos O'Donell <carlos@baldric.uwo.ca>
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Carlos O'Donell wrote:
> On Fri, Mar 12, 2004 at 06:33:11PM +0100, Joel Soete wrote:
> 
>>Hmmm all output files realted to Error1 was empty because of:
>>hppa-linux-gcc -nostdlib -nostartfiles -o /Develop/parisc-linux/build/glibc/posix/tst-regex
>> -Wl,-dynamic-linker=/lib/ld.so.1
>>/Develop/parisc-linux/build/glibc/csu/crt1.o /Develop/parisc-linux/build/glibc/csu/crti.o
>>`hppa-linux-gcc --print-file-name=crtbegin.o` /Develop/parisc-linux/build/glibc/posix/tst-regex.o
>>/Develop/parisc-linux/build/glibc/rt/librt.so  -Wl,-rpath-link=/Develop/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Develop/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/Develop/parisc-linux/build/glibc/nss:
>>/Develop/parisc-linux/build/glibc/nis:/Develop/parisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/build/glibc/linuxthreads
>>/Develop/parisc-linux/build/glibc/libc.so.6 /Develop/parisc-linux/build/glibc/libc_nonshared.a
>>-lgcc `hppa-linux-gcc --print-file-name=crtend.o` /Develop/parisc-linux/build/glibc/csu/crtn.o
>>/Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `pthread_create'
>>/Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `_pthread_cleanup_pop'
>>/Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `pthread_once'
>>/Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `_pthread_cleanup_push'
>>/Develop/parisc-linux/build/glibc/rt/librt.so: undefined reference to `pthread_atfork'
>>collect2: ld returned 1 exit status
>>make[2]: *** [/Develop/parisc-linux/build/glibc/posix/tst-regex] Error 1
> 
> 
> Are you sure you thread library was built correctly?
oops, I need more check on Monday (sorry) (btw I forget to transmit you my final patch about feupdate

> Do you see those
> symbols in libpthread? All those issues are related to libpthread being
> broken somehow.
>  
> 
>>make[2]: *** [/Develop/parisc-linux/build/glibc/elf/tst-dlmodcount.out] Error 139
>>do_page_fault() pid=9891 command='ld.so.1' type=15 address=0x401aca28
>>vm_start = 0x40177000, vm_end = 0x4017c000
> 
> 
> Can you run the loader through gdb, and give an assembly dump around the
> address where it crashes?
>
No pb if gdb don't segv (but iirc that only appened with gcc-3.5) and if lucky I could also garb a bt :).

Btw in previous test, I noticed that IAOQ was for instance =0x41007293 when gdb shows me the actual address of the crash at 
'0x41007293 - 3' and I find well the corresponding code at  7290 in an 'objdump -d'. Do you know why this diff of 3?

Sorry for delay, at Monday,
	Joel


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From: =?iso-8859-1?Q?Martin-=C9ric_Racine?= <q-funk-x+5WvRp7yOp+8FyH61/OPw@public.gmane.org>
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Subject: [parisc-linux] OSS Harmony drivers still missing and ALSA not yet
 working = sound broken
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Xref: news.gmane.org gmane.linux.ports.parisc:21060

This was the case in 2.6.3 and still is the case.

On Fri, 20 Feb 2004, Martin-=C9ric Racine wrote:

> Now that I notice, the old OSS driver fails to be included, even though i=
t was
> defined in the config:
>=20
> CONFIG_SOUND=3Dm
> CONFIG_SND=3Dm
> CONFIG_SND_SEQUENCER=3Dm
> CONFIG_SND_SEQ_DUMMY=3Dm
> CONFIG_SND_OSSEMUL=3Dy
> CONFIG_SND_MIXER_OSS=3Dm
> CONFIG_SND_PCM_OSS=3Dm
> CONFIG_SND_SEQUENCER_OSS=3Dy
> # CONFIG_SND_VERBOSE_PRINTK is not set
> # CONFIG_SND_DEBUG is not set
> CONFIG_SND_DUMMY=3Dm
> CONFIG_SND_VIRMIDI=3Dm
> # CONFIG_SND_MTPAV is not set
> # CONFIG_SND_SERIAL_U16550 is not set
> # CONFIG_SND_MPU401 is not set
> CONFIG_SND_HARMONY=3Dm
> # CONFIG_SOUND_PRIME is not set
> CONFIG_SOUND_HARMONY=3Dm
>=20
> <root@zarya:/root># tree /lib/modules/2.6.3-pa0/kernel/sound/
> /lib/modules/2.6.3-pa0/kernel/sound/
> |-- core
> |   |-- oss
> |   |   |-- snd-mixer-oss.ko
> |   |   `-- snd-pcm-oss.ko
> |   |-- seq
> |   |   |-- oss
> |   |   |   `-- snd-seq-oss.ko
> |   |   |-- snd-seq-device.ko
> |   |   |-- snd-seq-dummy.ko
> |   |   |-- snd-seq-midi-event.ko
> |   |   |-- snd-seq-virmidi.ko
> |   |   `-- snd-seq.ko
> |   |-- snd-page-alloc.ko
> |   |-- snd-pcm.ko
> |   |-- snd-rawmidi.ko
> |   |-- snd-timer.ko
> |   `-- snd.ko
> |-- drivers
> |   |-- snd-dummy.ko
> |   `-- snd-virmidi.ko
> |-- parisc
> |   `-- snd-harmony.ko
> `-- soundcore.ko
> =20
> 6 directories, 17 files

--=20
Martin-=C9ric Racine, ICT Consultant
http://www.pp.fishpool.fi/~q-funk/




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Xref: news.gmane.org gmane.linux.ports.parisc:21061

My B132L has its console on an HCRX24 GSC card (A4071B_LZ). In 2.4.25-pa1
it defaults to 32bpp and works fine. In 2.6.4-rc1-pa2 (and 2.6.3-pa0)
it now defaults to 8bpp which also works fine. I want to run the card in
32bpp though, but if I try stifb=bpp:32, or hardcoding the equivalent
in stifb.c then the machine locks hard immediately after switching to
the sti console. The screen is full of corrupted junk from the previous
shutdown and I have to hit the power button to boot again.

The HCRX24 is correctly identified in stifb.c as S9000_ID_HCRX and
IS_24_DEVICE(fb) is true. Is anybody using one of these cards in 32bpp?
I see that the code has been shuffled around a fair bit between 2.4.25
and 2.6.x and I'm not exactly sure where to start looking for problems.
Tips?

cheers,
-Andy



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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] 2.6.4-pa2 panic on c110 :(
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Hi all,

I just compile successfully (with defconfig) and seems to boot fine the last 2.6.4-pa2 kernel on my C110.
But as I was starting a rm -rf glibc it panics with console message:
arq->state 2
Badness in as_requeue_request at drivers/block/as-iosched.c:1479
Kernel addresses on the stack:
[<10125de8>] printk+0x188/0x1c8
[<10105938>] dump_stack+0x18/0x24
[<10229688>] as_requeue_request+0x64/0x10c
[<102205b0>] elv_requeue_request+0x2c/0x38
[<102232bc>] blk_insert_request+0xfc/0x104
[<1024cd30>] scsi_queue_insert+0x68/0x9c
[<102491ec>] scsi_softirq+0xfc/0x11c
[<10170560>] sys_select+0x1d0/0x3b8
[<101299c8>] do_softirq+0xf4/0xf8
[<1010c1e4>] syscall_do_softirq+0x8/0x10
[<1010b088>] intr_check_sig+0x0/0xc 


Don't know if it can help but that was the only system on which I always had to apply Grant tips:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2003-October/021244.html>
ie replacing
	static unsigned long ccio_mem_ratio = 4;
by 2 in drivers/parisc/ccio-dma.c

Thanks in advance for help,
	Joel



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Subject: Re: [parisc-linux] 2.6.4-pa2 panic on c110 :(
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On Sat, Mar 13, 2004 at 11:23:31PM +0000, Joel Soete wrote:
> I just compile successfully (with defconfig) and seems to boot fine the 
> last 2.6.4-pa2 kernel on my C110.
> But as I was starting a rm -rf glibc it panics with console message:
> arq->state 2
> Badness in as_requeue_request at drivers/block/as-iosched.c:1479
> Kernel addresses on the stack:
> [<10125de8>] printk+0x188/0x1c8
> [<10105938>] dump_stack+0x18/0x24
> [<10229688>] as_requeue_request+0x64/0x10c
> [<102205b0>] elv_requeue_request+0x2c/0x38
> [<102232bc>] blk_insert_request+0xfc/0x104
> [<1024cd30>] scsi_queue_insert+0x68/0x9c
> [<102491ec>] scsi_softirq+0xfc/0x11c
> [<10170560>] sys_select+0x1d0/0x3b8
> [<101299c8>] do_softirq+0xf4/0xf8
> [<1010c1e4>] syscall_do_softirq+0x8/0x10
> [<1010b088>] intr_check_sig+0x0/0xc 

That's not good.  First, is this reproducable?
Second, can you back down to 2.6.4-pa1 and see if that fixes your problem?

Your C110 uses the lasi710 and zalon drivers, right?  sym2's not involved
at all, is it?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Herzlichen Glckwunsch !

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From: Martin Schulze <joey@infodrom.org>
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Subject: [parisc-linux] Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
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Helge Deller wrote:
> > I've a B132L running Gentoo. With 2.4 I had the PS/2 keyboard working fine
> > throught a Raritan Compuswitch KVM, but the mouse (wireless Intellimouse
> > clone - 2 buttons pluss roller/middle) was dead. Decided to try out 2.6
> > partly to excercise udev, but mostly in the hope that all the input layer
> > work and PS/2 changes would bring the mouse to life. I should probably add
> > that there are two PCs on the KVM - one running 2.6.3 and one running
> > 2.4.24. Both run the mouse and keyboard flawlessly.
> > 
> > To the point. I grabbed 2.6.3-pa0 from Gentoo hppa-dev-kernel, configured
> > and compiled it. The keyboard and mouse are both dead. I downloaded
> > 2.6.4-rc1-pa2 from cvs.parisc-linux.org but the result is exactly the same.
> > Some info below. Clues anybody?
> .....
> > # Input Device Drivers
> > #
> > CONFIG_INPUT_KEYBOARD=y
> > # CONFIG_KEYBOARD_ATKBD is not set
> 
> Please enable this one (CONFIG_KEYBOARD_ATKBD), and....
> 
> > # CONFIG_KEYBOARD_SUNKBD is not set
> > # CONFIG_KEYBOARD_XTKBD is not set
> > # CONFIG_KEYBOARD_NEWTON is not set
> > CONFIG_KEYBOARD_HIL=y
> > CONFIG_INPUT_MOUSE=y
> > # CONFIG_MOUSE_PS2 is not set
> 
> this one too.
> 

For what it's worth, these settings don't activate my keyboard,
but... tadam...  the mouse is recognised, finally.  However, if
I have to choose to use either keyboard or mouse, I'd choose the
keyboard.

CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
CONFIG_KEYBOARD_HIL=y
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_SERIAL=y
CONFIG_MOUSE_HIL=y
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_PCSPKR is not set
# CONFIG_INPUT_UINPUT is not set
# CONFIG_HP_SDC_RTC is not set

Any idea how to get the keyboard detected again?
(This is a 725/100)

If it helps to provide more information, please let me know and I'll
dig them out.

> In the latest 2.6 kernel series, we switched from a parisc-only
> PS/2 mouse/keyboard driver to the standard linux kernel PS/2
> mouse keyboard drivers.

Makes sense.  However, would it be useful to add this to the config
help texts?  Same for the dependency of a HIL mouse to the MOUSE_PS2,
if HIL always takes PS/2 mice.  I know this is not the case in general,
since my 425 uses HIL but doesn't use PS/2, but then again, it's m68k
and not parisc.  However, it may be the case on PA-RISC, I don't know.
In that case it may make sense to rearrange the ordering and move
MOUSE_HIL up so it can pre-select MOUSE_PS2.

Anyway, here's a short improvement for the MOUSE_PS2 help text:

--- Kconfig.orig	Sun Mar 14 08:27:51 2004
+++ Kconfig	Sun Mar 14 08:31:18 2004
@@ -22,7 +22,8 @@
 	  Say Y here if you have a PS/2 mouse connected to your system. This
 	  includes the standard 2 or 3-button PS/2 mouse, as well as PS/2
 	  mice with wheels and extra buttons, Microsoft, Logitech or Genius
-	  compatible.
+	  compatible. This also includes a PS/2 mouse connected to your HIL
+	  hub on PA-RISC.
 
 	  Synaptics TouchPad users might be interested in a specialized
 	  XFree86 driver at:

Regards,

	Joey

-- 
Life is too short to run proprietary software.  -- Bdale Garbee

Please always Cc to me when replying to me on the lists.


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Matthew Wilcox wrote:
> On Sat, Mar 13, 2004 at 11:23:31PM +0000, Joel Soete wrote:
> 
>>I just compile successfully (with defconfig) and seems to boot fine the 
>>last 2.6.4-pa2 kernel on my C110.
>>But as I was starting a rm -rf glibc it panics with console message:
>>arq->state 2
>>Badness in as_requeue_request at drivers/block/as-iosched.c:1479
>>Kernel addresses on the stack:
>>[<10125de8>] printk+0x188/0x1c8
>>[<10105938>] dump_stack+0x18/0x24
>>[<10229688>] as_requeue_request+0x64/0x10c
>>[<102205b0>] elv_requeue_request+0x2c/0x38
>>[<102232bc>] blk_insert_request+0xfc/0x104
>>[<1024cd30>] scsi_queue_insert+0x68/0x9c
>>[<102491ec>] scsi_softirq+0xfc/0x11c
>>[<10170560>] sys_select+0x1d0/0x3b8
>>[<101299c8>] do_softirq+0xf4/0xf8
>>[<1010c1e4>] syscall_do_softirq+0x8/0x10
>>[<1010b088>] intr_check_sig+0x0/0xc 
> 
> 
> That's not good.  First, is this reproducable?
> Second, can you back down to 2.6.4-pa1 and see if that fixes your problem?
Unfortunately no :(; the same crash:
  arq->state 2
Badness in as_requeue_request at drivers/block/as-iosched.c:1479
Kernel addresses on the stack:
  [<10125de8>] printk+0x188/0x1c8
  [<10105938>] dump_stack+0x18/0x24
  [<102296c8>] as_requeue_request+0x64/0x10c
  [<102205f0>] elv_requeue_request+0x2c/0x38
  [<102232fc>] blk_insert_request+0xfc/0x104
  [<1024cd70>] scsi_queue_insert+0x68/0x9c
  [<1019e3a0>] __ext3_journal_stop+0x2c/0x64
  [<1024922c>] scsi_softirq+0xfc/0x11c
  [<101299c8>] do_softirq+0xf4/0xf8
  [<1010c1e4>] syscall_do_softirq+0x8/0x10
  [<1010b088>] intr_check_sig+0x0/0xc

> 
> Your C110 uses the lasi710 and zalon drivers, right?  sym2's not involved
> at all, is it?
> 
Yes as far I can read in boot dmesg:
[snip]
Linux version 2.6.4-pa1 (root@hpalin) (gcc version 3.3.3 (Debian 20040306)) #2 Sun Mar 14 09:534FP[0] enabled: Rev 1 Model 11
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0000008a
vers  0000000d
CPUID vers 11 rev 13 (0x0000016d)
model 9000/777/C110
Total Memory: 128 Mb
On node 0 totalpages: 32768
   DMA zone: 32768 pages, LIFO batch:8
   Normal zone: 0 pages, LIFO batch:1
   HighMem zone: 0 pages, LIFO batch:1
LED display at f0190001 registered
Built 1 zonelists
Kernel command line: root=/dev/md2 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=3/vmlinux-2.6.4-1PID hash table entries: 16 (order 
4: 128 bytes)
Console: colour dummy device 160x64
Memory: 125948k available
Calibrating delay loop... 119.60 BogoMIPS
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
POSIX conformance testing by UNIFIX
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0x7, 0x580, 0x0000b }
2. SkyHawk 100/120 FW-SCSI at 0xf3f8c000 [8/12] { 4, 0x0, 0x01f, 0x00089 }
3. Raven T' Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x032, 0x00081 },  additional addresses: 0x 4. Raven T' Core Centronics at 
0xffd02000 [8/16/0] { 10, 0x0, 0x032, 0x00074 },  additional add 5. Raven T' Audio at 0xffd04000 [8/16/1] { 10, 0x0, 0x032, 0x0007b }
6. Raven T' Lasi Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x032, 0x0008c }
7. Raven T' Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x032, 0x00082 }
8. Raven T' Core LAN (802.3) at 0xffd07000 [8/16/6] { 10, 0x0, 0x032, 0x0008a }
9. Raven T' Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x032, 0x00084 }
10. Raven T' Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x032, 0x00084 }
11. Raven T' Core PC Floppy at 0xffd0a000 [8/16/10] { 10, 0x0, 0x032, 0x00083 }
12. Raven T' Wax BA at 0xffe00000 [8/20] { 11, 0x0, 0x01e, 0x0008e },  additional addresses: 0x 13. Raven T' Wax HIL at 0xffe01000 
[8/20/1] { 10, 0x0, 0x01e, 0x00073 }
14. Raven T' Wax RS-232 at 0xffe02000 [8/20/2] { 10, 0x0, 0x01e, 0x0008c }
15. Raven T' Wax EISA BA at 0xfc000000 [8/20/5] { 11, 0x0, 0x01e, 0x00090 },  additional addres 16. U2-IOA BC GSC+ Port at 
0xf3fbf000 [8/63] { 7, 0x1, 0x501, 0x0000c },  additional addresses: 17. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0x7, 
0x580, 0x0000b }
18. Raven T' GSC Core Graphics at 0xf4000000 [10/16] { 10, 0x0, 0x032, 0x00085 },  additional a 19. U2-IOA BC GSC+ Port at 
0xf3fff000 [10/63] { 7, 0x1, 0x501, 0x0000c }
20. Raven 120 T' at 0xfffa0000 [32] { 0, 0x0, 0x58e, 0x00004 }
21. Memory at 0xfffb1000 [49] { 1, 0x0, 0x049, 0x00009 }
CPU(s): 1 x PA7200 (PCX-T') at 120.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
Wax at 0xffe00000 found.
Wax EISA Adapter found at 0xfc000000
EISA EEPROM: cannot register misc device.
Enumerating EISA bus
EISA: Probing bus 0 at parisc8:20:5
EISA: Mainboard HWPC0E1 detected.
EISA: Detected 0 cards.
SCSI subsystem initialized
drivers/usb/core/usb.c: registered new driver hub
STI GSC/PCI core graphics driver Version 0.9a
     id 2b4ded6d-40a00499, conforms to spec rev. 8.04
     graphics card name: HPA208LC1024
fb0: stifb 1024x768-8 frame buffer device, HPA208LC1024, id: 2b4ded6d, mmio: 0xf4100000
ikconfig 0.7 with /proc/config*
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
Soft power switch enabled, polling @ 0xf0140000.
Console: switching to colour frame buffer device 128x48
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Found i82596 at 0xffd07000, IRQ 87
eth%d: 82596 at 0xffd07000, 00 60 B0 07 1E EA IRQ 87.
82596.c $Revision: 1.29 $
airo:  Probing for PCI adapters
airo:  Finished probing for PCI adapters
zalon_probe: Zalon vers field is 0x1, IRQ 34
ncr53c720-0: rev 0xf irq 34
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3e
Using anticipatory io scheduler
   Vendor: SEAGATE   Model: ST34371W          Rev: HP03
   Type:   Direct-Access                      ANSI SCSI revision: 02
   Vendor: SEAGATE   Model: ST34371W          Rev: HP03
   Type:   Direct-Access                      ANSI SCSI revision: 02
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
st: Version 20040213, fixed bufsize 32768, s/g segs 256
ncr53c720-0-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
  sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 >
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
ncr53c720-0-<6,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
SCSI device sdb: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sdb: drive cache: write back
  sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 sdb6 sdb7 sdb8 sdb9 >
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 5, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 6, lun 0,  type 0
Console: switching to colour frame buffer device 128x48
mice: PS/2 mouse device common for all mice
serio: GSC PS2 keyboard port at 0xffd08000 irq 69 @ parisc8:16:7
serio: GSC PS2 mouse port at 0xffd08100 irq 69 @ parisc8:16:8
HP SDC: HP SDC at 0xffe01000, IRQ 126 (NMI IRQ 125)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
    8regs     :    85.200 MB/sec
    8regs_prefetch:    84.800 MB/sec
    32regs    :    94.000 MB/sec
    32regs_prefetch:    98.800 MB/sec
raid5: using function: 32regs_prefetch (98.800 MB/sec)
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
oprofile: using timer interrupt.
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET: Registered protocol family 1
NET: Registered protocol family 17
md: Autodetecting RAID arrays.
md: autorun ...
md: considering sdb8 ...
md:  adding sdb8 ...
md: sdb7 has different UUID to sdb8

Thanks for your attention,
	Joel


From - Thu Nov 08 21:31:14 2018
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.6.4-pa2 panic on c110 :(
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Joel Soete wrote:
> Matthew Wilcox wrote:
> 
>> On Sat, Mar 13, 2004 at 11:23:31PM +0000, Joel Soete wrote:
>>
>>> I just compile successfully (with defconfig) and seems to boot fine 
>>> the last 2.6.4-pa2 kernel on my C110.
>>> But as I was starting a rm -rf glibc it panics with console message:
>>> arq->state 2
>>> Badness in as_requeue_request at drivers/block/as-iosched.c:1479
>>> Kernel addresses on the stack:
>>> [<10125de8>] printk+0x188/0x1c8
>>> [<10105938>] dump_stack+0x18/0x24
>>> [<10229688>] as_requeue_request+0x64/0x10c
>>> [<102205b0>] elv_requeue_request+0x2c/0x38
>>> [<102232bc>] blk_insert_request+0xfc/0x104
>>> [<1024cd30>] scsi_queue_insert+0x68/0x9c
>>> [<102491ec>] scsi_softirq+0xfc/0x11c
>>> [<10170560>] sys_select+0x1d0/0x3b8
>>> [<101299c8>] do_softirq+0xf4/0xf8
>>> [<1010c1e4>] syscall_do_softirq+0x8/0x10
>>> [<1010b088>] intr_check_sig+0x0/0xc 
>>
>>
>>
>> That's not good.  First, is this reproducable?

And finaly if I apply Grant tips (agianst 2.6.4-pa2) the crash is a bit different:
  arq->state 2
Badness in as_requeue_request at drivers/block/as-iosched.c:1479
Kernel addresses on the stack:
  [<10125de8>] printk+0x188/0x1c8
  [<10105938>] dump_stack+0x18/0x24
  [<10229688>] as_requeue_request+0x64/0x10c
  [<102205b0>] elv_requeue_request+0x2c/0x38
  [<102232bc>] blk_insert_request+0xfc/0x104
  [<1024cd30>] scsi_queue_insert+0x68/0x9c
  [<1012dd24>] update_process_times+0x38/0x54
  [<102491ec>] scsi_softirq+0xfc/0x11c
  [<101299c8>] do_softirq+0xf4/0xf8
  [<1010733c>] do_irq_mask+0xbc/0xcc
  [<10107270>] do_cpu_irq_mask+0xfc/0x10c
  [<10228d34>] as_remove_request+0xf4/0xfc
  [<1010b068>] intr_return+0x0/0x14
  [<1024dcfc>] scsi_request_fn+0x54/0x2c4
  [<101441f0>] kmem_cache_alloc+0x38/0x4c
  [<1016ba78>] may_open+0x58/0x1c8
  [<1015a848>] dentry_open+0x138/0x1c4
  [<10144200>] kmem_cache_alloc+0x48/0x4c
  [<1013efa4>] mempool_alloc+0xac/0x1a0
  [<101617bc>] bio_alloc+0x3c/0x1a4
  [<10160e90>] submit_bh+0x94/0x1e0
  [<101610e8>] ll_rw_block+0x10c/0x148
  [<101a53bc>] journal_brelse_array+0x30/0x48
  [<101a5154>] journal_commit_transaction+0xf18/0x1150
  [<10125b1c>] call_console_drivers+0xd0/0x17c
  [<101a7958>] kjournald+0xc0/0x224
  [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24

kernel BUG at include/linux/blkdev.h:543!
Kernel addresses on the stack:
  [<10125de8>] printk+0x188/0x1c8
  [<10105938>] dump_stack+0x18/0x24
  [<1024df48>] scsi_request_fn+0x2a0/0x2c4
  [<102205b0>] elv_requeue_request+0x2c/0x38
  [<102232a0>] blk_insert_request+0xe0/0x104
  [<1024cd30>] scsi_queue_insert+0x68/0x9c
  [<1012dd24>] update_process_times+0x38/0x54
  [<102491ec>] scsi_softirq+0xfc/0x11c
  [<101299c8>] do_softirq+0xf4/0xf8
  [<1010733c>] do_irq_mask+0xbc/0xcc
  [<10107270>] do_cpu_irq_mask+0xfc/0x10c
  [<10228d34>] as_remove_request+0xf4/0xfc
  [<1010b068>] intr_return+0x0/0x14
  [<1024dcfc>] scsi_request_fn+0x54/0x2c4
  [<101441f0>] kmem_cache_alloc+0x38/0x4c
  [<1016ba78>] may_open+0x58/0x1c8
  [<1015a848>] dentry_open+0x138/0x1c4
  [<10144200>] kmem_cache_alloc+0x48/0x4c
  [<1013efa4>] mempool_alloc+0xac/0x1a0
  [<101617bc>] bio_alloc+0x3c/0x1a4
  [<10160e90>] submit_bh+0x94/0x1e0
  [<101610e8>] ll_rw_block+0x10c/0x148
  [<101a53bc>] journal_brelse_array+0x30/0x48
  [<101a5154>] journal_commit_transaction+0xf18/0x1150
  [<10125b1c>] call_console_drivers+0xd0/0x17c
  [<101a7958>] kjournald+0xc0/0x224
  [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24

kernel BUG at include/linux/blkdev.h:543!
Kernel addresses on the stack:
  [<10125de8>] printk+0x188/0x1c8
  [<10105938>] dump_stack+0x18/0x24
  [<1024df48>] scsi_request_fn+0x2a0/0x2c4
  [<1013f0dc>] mempool_free+0x44/0x80
  [<102228b4>] blk_run_queue+0x2c/0x40
  [<1024d1e4>] scsi_run_queue+0x80/0xec
  [<1024d3e8>] scsi_end_request+0xdc/0xf4
  [<1013f0dc>] mempool_free+0x44/0x80
  [<1024d6b8>] scsi_io_completion+0x100/0x3f0
  [<1025f770>] ncr_wakeup_done+0x98/0xb4
  [<102492e0>] scsi_finish_command+0x9c/0xc0
  [<102491dc>] scsi_softirq+0xec/0x11c
  [<10263114>] ncr53c8xx_intr+0x74/0xbc
  [<101299c8>] do_softirq+0xf4/0xf8
  [<1010733c>] do_irq_mask+0xbc/0xcc
  [<10107270>] do_cpu_irq_mask+0xfc/0x10c
  [<10228d34>] as_remove_request+0xf4/0xfc
  [<1010b068>] intr_return+0x0/0x14
  [<1024dcfc>] scsi_request_fn+0x54/0x2c4
  [<101441f0>] kmem_cache_alloc+0x38/0x4c
  [<1016ba78>] may_open+0x58/0x1c8
  [<1015a848>] dentry_open+0x138/0x1c4
  [<10144200>] kmem_cache_alloc+0x48/0x4c
  [<1013efa4>] mempool_alloc+0xac/0x1a0
  [<101617bc>] bio_alloc+0x3c/0x1a4
  [<10160e90>] submit_bh+0x94/0x1e0
  [<101610e8>] ll_rw_block+0x10c/0x148
  [<101a53bc>] journal_brelse_array+0x30/0x48
  [<101a5154>] journal_commit_transaction+0xf18/0x1150
  [<10125b1c>] call_console_drivers+0xd0/0x17c
  [<101a7958>] kjournald+0xc0/0x224
  [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24

kernel BUG at include/linux/blkdev.h:543!
Kernel addresses on the stack:
  [<10125de8>] printk+0x188/0x1c8
  [<10105938>] dump_stack+0x18/0x24
  [<1024df48>] scsi_request_fn+0x2a0/0x2c4
  [<102205b0>] elv_requeue_request+0x2c/0x38
  [<102232a0>] blk_insert_request+0xe0/0x104
  [<1024cd30>] scsi_queue_insert+0x68/0x9c
  [<10125de8>] printk+0x188/0x1c8
  [<10248e8c>] scsi_dispatch_cmd+0x184/0x22c
  [<102207ac>] elv_remove_request+0x34/0x44
  [<1024de54>] scsi_request_fn+0x1ac/0x2c4
  [<1013f0dc>] mempool_free+0x44/0x80
  [<102228b4>] blk_run_queue+0x2c/0x40
  [<1024d1e4>] scsi_run_queue+0x80/0xec
  [<1024d3e8>] scsi_end_request+0xdc/0xf4
  [<1013f0dc>] mempool_free+0x44/0x80
  [<1024d6b8>] scsi_io_completion+0x100/0x3f0
  [<1025f770>] ncr_wakeup_done+0x98/0xb4
  [<102492e0>] scsi_finish_command+0x9c/0xc0
  [<102491dc>] scsi_softirq+0xec/0x11c
  [<10263114>] ncr53c8xx_intr+0x74/0xbc
  [<101299c8>] do_softirq+0xf4/0xf8
  [<1010733c>] do_irq_mask+0xbc/0xcc
  [<10107270>] do_cpu_irq_mask+0xfc/0x10c
  [<10228d34>] as_remove_request+0xf4/0xfc
  [<1010b068>] intr_return+0x0/0x14
  [<1024dcfc>] scsi_request_fn+0x54/0x2c4
  [<101441f0>] kmem_cache_alloc+0x38/0x4c
  [<1016ba78>] may_open+0x58/0x1c8
  [<1015a848>] dentry_open+0x138/0x1c4
  [<10144200>] kmem_cache_alloc+0x48/0x4c
  [<1013efa4>] mempool_alloc+0xac/0x1a0
  [<101617bc>] bio_alloc+0x3c/0x1a4
  [<10160e90>] submit_bh+0x94/0x1e0
  [<101610e8>] ll_rw_block+0x10c/0x148
  [<101a53bc>] journal_brelse_array+0x30/0x48
  [<101a5154>] journal_commit_transaction+0xf18/0x1150
  [<10125b1c>] call_console_drivers+0xd0/0x17c
  [<101a7958>] kjournald+0xc0/0x224
  [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24

kernel BUG at include/linux/blkdev.h:543!
Kernel addresses on the stack:
  [<10125de8>] printk+0x188/0x1c8
  [<10105938>] dump_stack+0x18/0x24
  [<1024df48>] scsi_request_fn+0x2a0/0x2c4
  [<10222708>] blk_remove_plug+0x5c/0x84
  [<102228b4>] blk_run_queue+0x2c/0x40
  [<1024d3e8>] scsi_end_request+0xdc/0xf4
  [<1013f0dc>] mempool_free+0x44/0x80
  [<1024d6b8>] scsi_io_completion+0x100/0x3f0
  [<1025f770>] ncr_wakeup_done+0x98/0xb4
  [<102492e0>] scsi_finish_command+0x9c/0xc0
  [<102491dc>] scsi_softirq+0xec/0x11c
  [<10263114>] ncr53c8xx_intr+0x74/0xbc
  [<101299c8>] do_softirq+0xf4/0xf8
  [<1010733c>] do_irq_mask+0xbc/0xcc
  [<10107270>] do_cpu_irq_mask+0xfc/0x10c
  [<10228d34>] as_remove_request+0xf4/0xfc
  [<1010b068>] intr_return+0x0/0x14
  [<1024dcfc>] scsi_request_fn+0x54/0x2c4
  [<101441f0>] kmem_cache_alloc+0x38/0x4c
  [<1016ba78>] may_open+0x58/0x1c8
  [<1015a848>] dentry_open+0x138/0x1c4
  [<10144200>] kmem_cache_alloc+0x48/0x4c
  [<1013efa4>] mempool_alloc+0xac/0x1a0
  [<101617bc>] bio_alloc+0x3c/0x1a4
  [<10160e90>] submit_bh+0x94/0x1e0
  [<101610e8>] ll_rw_block+0x10c/0x148
  [<101a53bc>] journal_brelse_array+0x30/0x48
  [<101a5154>] journal_commit_transaction+0xf18/0x1150
  [<10125b1c>] call_console_drivers+0xd0/0x17c
  [<101a7958>] kjournald+0xc0/0x224
  [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24

arq->state 2
Badness in as_requeue_request at drivers/block/as-iosched.c:1479
Kernel addresses on the stack:
  [<10125de8>] printk+0x188/0x1c8
  [<10105938>] dump_stack+0x18/0x24
  [<10229688>] as_requeue_request+0x64/0x10c
  [<102205b0>] elv_requeue_request+0x2c/0x38
  [<102232bc>] blk_insert_request+0xfc/0x104
  [<1024cd30>] scsi_queue_insert+0x68/0x9c
  [<102492e0>] scsi_finish_command+0x9c/0xc0
  [<102491ec>] scsi_softirq+0xfc/0x11c
  [<10263114>] ncr53c8xx_intr+0x74/0xbc
  [<101299c8>] do_softirq+0xf4/0xf8
  [<1010733c>] do_irq_mask+0xbc/0xcc
  [<10107270>] do_cpu_irq_mask+0xfc/0x10c
  [<10228d34>] as_remove_request+0xf4/0xfc
  [<1010b068>] intr_return+0x0/0x14
  [<1024dcfc>] scsi_request_fn+0x54/0x2c4
  [<101441f0>] kmem_cache_alloc+0x38/0x4c
  [<1016ba78>] may_open+0x58/0x1c8
  [<1015a848>] dentry_open+0x138/0x1c4
  [<10144200>] kmem_cache_alloc+0x48/0x4c
  [<1013efa4>] mempool_alloc+0xac/0x1a0
  [<101617bc>] bio_alloc+0x3c/0x1a4
  [<10160e90>] submit_bh+0x94/0x1e0
  [<101610e8>] ll_rw_block+0x10c/0x148
  [<101a53bc>] journal_brelse_array+0x30/0x48
  [<101a5154>] journal_commit_transaction+0xf18/0x1150
  [<10125b1c>] call_console_drivers+0xd0/0x17c
  [<101a7958>] kjournald+0xc0/0x224
  [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24

hth,
	Joel


From - Thu Nov 08 21:31:15 2018
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Subject: Re: [parisc-linux] Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
Date: Sun, 14 Mar 2004 15:28:23 +0000 (GMT)
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Xref: news.gmane.org gmane.linux.ports.parisc:21068

On Sun, 14 Mar 2004, Martin Schulze wrote:

> For what it's worth, these settings don't activate my keyboard,
> but... tadam...  the mouse is recognised, finally.  However, if
> I have to choose to use either keyboard or mouse, I'd choose the
> keyboard.
>
> CONFIG_INPUT_KEYBOARD=y
> CONFIG_KEYBOARD_ATKBD=y
> # CONFIG_KEYBOARD_SUNKBD is not set
> # CONFIG_KEYBOARD_XTKBD is not set
> # CONFIG_KEYBOARD_NEWTON is not set
> CONFIG_KEYBOARD_HIL=y

Why do you include HIL keyboard support?

> CONFIG_INPUT_MOUSE=y
> CONFIG_MOUSE_PS2=y
> CONFIG_MOUSE_SERIAL=y

do you need serial mouse support?

> CONFIG_MOUSE_HIL=y

and why do you include HIL mouse support?

[...]

> Any idea how to get the keyboard detected again?
> (This is a 725/100)

I don't know the 725, but from what I understand it uses (GSC) PS/2, so you
attach keyboard and mouse directly, without any converters. Is that correct?

If this is the cause, get rid of all HIL drivers and use PS/2 exclusively.
I think using a combination of HIL and PS/2 drivers might cause some
sort of driver confusion in your case.

> If it helps to provide more information, please let me know and I'll
> dig them out.
>
>  	  Say Y here if you have a PS/2 mouse connected to your system. This
>  	  includes the standard 2 or 3-button PS/2 mouse, as well as PS/2
>  	  mice with wheels and extra buttons, Microsoft, Logitech or Genius
> -	  compatible.
> +	  compatible. This also includes a PS/2 mouse connected to your HIL
> +	  hub on PA-RISC.

I'm confused here!

AFAIK if you are using HIL, you ONLY have to use the HIL keyboard/mouse
drivers, PS/2 is a different thing and is not involved at all.
(I hope I don't say anything stupid here).

So far I thought that you cannot attach a PS/2 mouse to a HIL adapter,
you can only attach HIL devices ... (at least this is the case for my 730)


Greetings,
 Max


From - Thu Nov 08 21:31:15 2018
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc-2.3.3: a warning with gcc-3.3 become an
	error with gcc-3.5
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Xref: news.gmane.org gmane.linux.ports.parisc:21069

Carlos,

Carlos O'Donell wrote:
> On Sat, Mar 06, 2004 at 10:14:12PM +0000, Joel Soete wrote:
> 
>>Taken into account of your relevant remarks here is my new proposal:
>>=========><=========
>>--- sysdeps/hppa/fpu/feupdateenv.c.orig 2004-03-06 21:18:40.789605000 +0100
>>+++ sysdeps/hppa/fpu/feupdateenv.c      2004-03-06 21:22:21.839605000 +0100
>>@@ -23,15 +23,16 @@
>> int
>> feupdateenv (const fenv_t *envp)
>> {
>>-  unsigned int sw[2];
>>+  struct fenv_t saved_env, new_env;
>>
>>   /* Get the current exception status. */
>>-  __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
>>-  sw[0] &= FE_ALL_EXCEPT;
>>-  envp->__status_word = envp->__status_word | sw[0];
> 
> 
> Yeah, this is bad, because 'envp' is const, and we shouldn't be changing
> its value.
> 
> 
>>+  fegetenv(&saved_env);
>>+  saved_env.__status_word &= FE_ALL_EXCEPT;
>>+  new_env.__status_word = envp->__status_word | saved_env.__status_word;
>>+  for (i = 0; i < 7; i++) new_env.__exception[i] = envp->__exception[i];
> 
> 
> Why do you use "new_env" at all? Just use saved_env. Then you don't have
> to have a silly loop to copy the exceptions, they'll already be there.
> Then you can call fesetenv(&saved_env);
>  
> 
>>   /* Install new environment.  */
>>-  fesetenv (envp);
>>+  fesetenv (&new_env);
>>
>>   /* Success.  */
>>   return 0;
>>=========><=========
> 
Taken into account of your remarks here is the final patch:
--- glibc-2.3.3-20040314/sysdeps/hppa/fpu/feupdateenv.c.orig    2003-12-18 04:57:50.000000000 +0100
+++ glibc-2.3.3-20040314/sysdeps/hppa/fpu/feupdateenv.c 2004-03-14 12:06:13.286349000 +0100
@@ -23,15 +23,15 @@
  int
  feupdateenv (const fenv_t *envp)
  {
-  unsigned int sw[2];
+  fenv_t tmp_env;

    /* Get the current exception status. */
-  __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
-  sw[0] &= FE_ALL_EXCEPT;
-  envp->__status_word = envp->__status_word | sw[0];
+  fegetenv(&tmp_env);
+  tmp_env.__status_word &= FE_ALL_EXCEPT;
+  tmp_env.__status_word |= envp->__status_word;

    /* Install new environment.  */
-  fesetenv (envp);
+  fesetenv (&tmp_env);

    /* Success.  */
    return 0;
=========><=========

it compiles well with gcc-3.3.

I hope it will not break anything :)

Joel


From - Thu Nov 08 21:31:15 2018
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From: Martin Schulze <joey@infodrom.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
Date: Sun, 14 Mar 2004 19:12:56 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:21070

M. Grabert wrote:
> > For what it's worth, these settings don't activate my keyboard,
> > but... tadam...  the mouse is recognised, finally.  However, if
> > I have to choose to use either keyboard or mouse, I'd choose the
> > keyboard.
> >
> > CONFIG_INPUT_KEYBOARD=y
> > CONFIG_KEYBOARD_ATKBD=y
> > # CONFIG_KEYBOARD_SUNKBD is not set
> > # CONFIG_KEYBOARD_XTKBD is not set
> > # CONFIG_KEYBOARD_NEWTON is not set
> > CONFIG_KEYBOARD_HIL=y
> 
> Why do you include HIL keyboard support?

Because the keyboad is connected to a HIL hub and it's also a
reminiscent of the time before I learned that the keyboard and mouse
are not handled entirely separate anymore.  I still have to strip some
config options from the configuration.

> > CONFIG_INPUT_MOUSE=y
> > CONFIG_MOUSE_PS2=y
> > CONFIG_MOUSE_SERIAL=y
> 
> do you need serial mouse support?

Well, at one time I tried to fix the mouse problem by connecting a
serial mouse to ttyS0/ttyS1 but it didn't work either, even though a
getty on that port worked and I could log in, hence the port works at
least and is supported in the kernel.

> > CONFIG_MOUSE_HIL=y
> 
> and why do you include HIL mouse support?

Same as above, because the mouse is connected to a HIL hub and it's a
reminiscent from the time before I learned that the keyboard and mouse
are not handled entirely separate anymore for parisc.

> > Any idea how to get the keyboard detected again?
> > (This is a 725/100)
> 
> I don't know the 725, but from what I understand it uses (GSC) PS/2, so you
> attach keyboard and mouse directly, without any converters. Is that correct?

No it isn't.  That's the case for 712, not this one.  There's a HIL
hub where I can connect one keyboard, one mouse and another HIL hub.
The case doesn't have any PS/2 socket.

> If this is the cause, get rid of all HIL drivers and use PS/2 exclusively.
> I think using a combination of HIL and PS/2 drivers might cause some
> sort of driver confusion in your case.

Might well be.  I'm still working on stripping the stuff and testing
various combinations.

> > If it helps to provide more information, please let me know and I'll
> > dig them out.
> >
> >  	  Say Y here if you have a PS/2 mouse connected to your system. This
> >  	  includes the standard 2 or 3-button PS/2 mouse, as well as PS/2
> >  	  mice with wheels and extra buttons, Microsoft, Logitech or Genius
> > -	  compatible.
> > +	  compatible. This also includes a PS/2 mouse connected to your HIL
> > +	  hub on PA-RISC.
> 
> I'm confused here!
>
> AFAIK if you are using HIL, you ONLY have to use the HIL keyboard/mouse
> drivers, PS/2 is a different thing and is not involved at all.
> (I hope I don't say anything stupid here).

Aha.  I thought it was different.  Maybe I misread Helges mail.

> So far I thought that you cannot attach a PS/2 mouse to a HIL adapter,
> you can only attach HIL devices ... (at least this is the case for my 730)

Well, at least physically this is possible.  I haven't tried to use
that combination, though, since I have the original mouse and
keyboard as well.  However, I could give it a try once I find a
working config combination.

-- 
Life is too short to run proprietary software.  -- Bdale Garbee

Please always Cc to me when replying to me on the lists.


From - Thu Nov 08 21:31:15 2018
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] glibc-2.3.3: a warning with gcc-3.3 become an
	error with gcc-3.5
Date: Sun, 14 Mar 2004 14:26:47 -0500
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On Sun, Mar 14, 2004 at 04:21:37PM +0000, Joel Soete wrote:
> it compiles well with gcc-3.3.
> I hope it will not break anything :)

Hope?? What does the testsuite for glibc say?

c.


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Subject: Re: [parisc-linux] 	RE: New glibc patches 2004-03-08,
	fixes GLRO changes.
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> No pb if gdb don't segv (but iirc that only appened with gcc-3.5) and if 
> lucky I could also garb a bt :).
> 
> Btw in previous test, I noticed that IAOQ was for instance =0x41007293 when 
> gdb shows me the actual address of the crash at '0x41007293 - 3' and I find 
> well the corresponding code at  7290 in an 'objdump -d'. Do you know why 
> this diff of 3?

Instructions can only start at addresses that are modulo 32-bits, gdb is
returning the start address of the insn that executed. While IAOQ is
showing that the insn has finished (e.g. pointing at the last byte 0 1 2
3).

c.



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Subject: Re: [parisc-linux] Compile problem with 2.4.6-pa2
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Hi Martin,

Patch applied.

Thanks,
Helge

On Saturday 13 March 2004 16:35, Martin Schulze wrote:
> Hi,
> 
> there seems to be a dependency missing in Linux 2.6.4-pa2.
> 
> When I try to compile it and have STI_CONSOLE set to 'y', hence
> sticore.c gets compiled, but accidently not setting
> FRAMEBUFFER_CONSOLE to 'y' as well, kernel build ends in a link error
> due to undefined symbols: find_font() called from sti_select_fbfont()
> and another one I forgot to secure.
> 
> Investigation showed that the source of the problem is in
> drivers/video/console/sticore.c:
> 
> koulutie!joey(pts/1):~/linux-2.6.4-pa2/drivers> find -name '*.c'|xargs grep sti_select_fbfont
> ./video/console/sticore.c:sti_select_fbfont( struct sti_cooked_rom *cooked_rom, char *fbfont_name )
> ./video/console/sticore.c:sti_select_fbfont(struct sti_cooked_rom *cooked_rom, char *fbfont_name)
> ./video/console/sticore.c:      if ((font = sti_select_fbfont(rom, font_name[index])))
> 
> And the missing function is defined in drivers/video/console/fonts.c:
> 
> koulutie!joey(pts/1):~/linux-2.6.4-pa2/drivers> find -name '*.c'|xargs grep find_font
> [..]
> ./video/console/fonts.c: *      find_font - find a font
> ./video/console/fonts.c:struct font_desc *find_font(char *name)
> ./video/console/fonts.c:EXPORT_SYMBOL(find_font);
> [..]
> 
> >From reading the help text of STI_CONSOLE, FRAMEBUFFER_CONSOLE and
> FONTS I'm not sure STI_CONSOLE should depend on FONTS, though, but it
> seems to use a function from fonts.c, which should be linked into
> built-in.o
> 
> Adding it fixed the problem, though.
> 
> --- linux-2.6.4-pa2/drivers/video/console/Kconfig.orig	Sat Mar 13 16:17:27 2004
> +++ linux-2.6.4-pa2/drivers/video/console/Kconfig	Sat Mar 13 16:23:30 2004
> @@ -67,7 +67,7 @@
>  #  bool 'IODC console' CONFIG_IODC_CONSOLE
>  config STI_CONSOLE
>          tristate "STI text console" 
> -        depends on PARISC
> +        depends on PARISC && FRAMEBUFFER_CONSOLE
>          default y
>          help
>            The STI console is the builtin display/keyboard on HP-PARISC
> 
> Regards,
> 
> 	Joey
> 
> -- 
> All language designers are arrogant.  Goes with the territory...
> 	-- Larry Wall
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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Subject: Re: [parisc-linux] Anyone still caring about 2.4?
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On Wed, Mar 10, 2004 at 03:29:04PM +0000, Matthew Wilcox wrote:
> 
> I was just looking at a 2.4 problem for lamont so I went back to a 2.4
> tree I had lying around.  I found this diff:

When running a very memory intensive application
(Video Orbits), I noticed some strange behaviour
-- the cursor for example being in the wrong place
in a text window running emacs, and other wierd
not-strictly-repeatable things -- as the available
memory became very low. Applying this patch seems
to help.

William
-- 
/~\  The ASCII Ribbon Campaign
\ /    No HTML/RTF in email
 X     No Word docs in email
/ \  Respect for open standards


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Subject: Re: [parisc-linux] 	RE: New glibc patches 2004-03-08,
	fixes GLRO changes.
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On Sun, Mar 14, 2004 at 02:32:37PM -0500, Carlos O'Donell wrote:
> > No pb if gdb don't segv (but iirc that only appened with gcc-3.5) and if 
> > lucky I could also garb a bt :).
> > 
> > Btw in previous test, I noticed that IAOQ was for instance =0x41007293 when 
> > gdb shows me the actual address of the crash at '0x41007293 - 3' and I find 
> > well the corresponding code at  7290 in an 'objdump -d'. Do you know why 
> > this diff of 3?
> 
> Instructions can only start at addresses that are modulo 32-bits, gdb is
> returning the start address of the insn that executed. While IAOQ is
> showing that the insn has finished (e.g. pointing at the last byte 0 1 2
> 3).

Sorry, I'm smoking crack.

Address OR Privilege = IAOQ

Privilege Kernel = 0
Privilege User   = 3 

c.




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Subject: Re: [parisc-linux] glibc-2.3.3: a warning with gcc-3.3 become an
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Carlos O'Donell wrote:
> On Sun, Mar 14, 2004 at 04:21:37PM +0000, Joel Soete wrote:
> 
>>it compiles well with gcc-3.3.
>>I hope it will not break anything :)
> 
> 
> Hope?? What does the testsuite for glibc say?
> 
Right now I reach to build glibc completely (with just a warning less ;) )
This c110 is unfortunately too slow to let me complete the make -k check now, I will so continue tomorrow ;)

Regards,
	Joel


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Subject: Re: [parisc-linux] Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
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On Sunday 14 March 2004 08:37, Martin Schulze wrote:
> > In the latest 2.6 kernel series, we switched from a parisc-only
> > PS/2 mouse/keyboard driver to the standard linux kernel PS/2
> > mouse keyboard drivers.
> 
> Makes sense.  However, would it be useful to add this to the config
> help texts?  Same for the dependency of a HIL mouse to the MOUSE_PS2,
> if HIL always takes PS/2 mice.  I know this is not the case in general,
> since my 425 uses HIL but doesn't use PS/2, but then again, it's m68k
> and not parisc.  However, it may be the case on PA-RISC, I don't know.
> In that case it may make sense to rearrange the ordering and move
> MOUSE_HIL up so it can pre-select MOUSE_PS2.
> 
> Anyway, here's a short improvement for the MOUSE_PS2 help text:
> 
> --- Kconfig.orig	Sun Mar 14 08:27:51 2004
> +++ Kconfig	Sun Mar 14 08:31:18 2004
> @@ -22,7 +22,8 @@
>  	  Say Y here if you have a PS/2 mouse connected to your system. This
>  	  includes the standard 2 or 3-button PS/2 mouse, as well as PS/2
>  	  mice with wheels and extra buttons, Microsoft, Logitech or Genius
> -	  compatible.
> +	  compatible. This also includes a PS/2 mouse connected to your HIL
> +	  hub on PA-RISC.
>  
>  	  Synaptics TouchPad users might be interested in a specialized
>  	  XFree86 driver at:

Hi Joey

I don't know if this makes sense to be too verbose here....
"...a PS/2 mouse connected to your system..." looks pretty ok, independed
if it is connected to a HIL hub or not.

Helge


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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
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On Sunday 14 March 2004 19:12, Martin Schulze wrote:
> > > For what it's worth, these settings don't activate my keyboard,
> > > but... tadam...  the mouse is recognised, finally.  

Cool.

> > > However, if 
> > > I have to choose to use either keyboard or mouse, I'd choose the
> > > keyboard.

Of course.

> > > CONFIG_INPUT_KEYBOARD=y
> > > CONFIG_KEYBOARD_ATKBD=y
> > > # CONFIG_KEYBOARD_SUNKBD is not set
> > > # CONFIG_KEYBOARD_XTKBD is not set
> > > # CONFIG_KEYBOARD_NEWTON is not set
> > > CONFIG_KEYBOARD_HIL=y
> > 
> > Why do you include HIL keyboard support?
> 
> Because the keyboad is connected to a HIL hub and it's also a
> reminiscent of the time before I learned that the keyboard and mouse
> are not handled entirely separate anymore.  I still have to strip some
> config options from the configuration.

I think the main question here is which type of keyboard you have.
Either it's a HIL keyboard (with the special HIL connector), or it's a 
PS/2 keyboard.
My 715/64 for example has a HIL HUB too, and here the mouse and
keyboard are 100% HIL only devices.
AFAIK, there are other HIL Hubs too, which provides original PS/2
ports and HIL ports. So, which kind of connector does your keyboard has ?

> > > CONFIG_INPUT_MOUSE=y
> > > CONFIG_MOUSE_PS2=y
> > > CONFIG_MOUSE_SERIAL=y
> > 
> > do you need serial mouse support?
> 
> Well, at one time I tried to fix the mouse problem by connecting a
> serial mouse to ttyS0/ttyS1 but it didn't work either, even though a
> getty on that port worked and I could log in, hence the port works at
> least and is supported in the kernel.

Serial mice should work. I didn't tested it for some time now, but if
it's broken I would like to know.

> > > CONFIG_MOUSE_HIL=y
> > 
> > and why do you include HIL mouse support?
> 
> Same as above, because the mouse is connected to a HIL hub and it's a
> reminiscent from the time before I learned that the keyboard and mouse
> are not handled entirely separate anymore for parisc.
> 
> > > Any idea how to get the keyboard detected again?
> > > (This is a 725/100)
> > 
> > I don't know the 725, but from what I understand it uses (GSC) PS/2, so you
> > attach keyboard and mouse directly, without any converters. Is that correct?
> 
> No it isn't.  That's the case for 712, not this one.  There's a HIL
> hub where I can connect one keyboard, one mouse and another HIL hub.
> The case doesn't have any PS/2 socket.

Ok. So your keyboard seem to be a HIL keyboard ?
But it's strange, that your PS/2 mouse works then... I'm confused.

> > If this is the cause, get rid of all HIL drivers and use PS/2 exclusively.
> > I think using a combination of HIL and PS/2 drivers might cause some
> > sort of driver confusion in your case.
> 
> Might well be.  I'm still working on stripping the stuff and testing
> various combinations.

Ok.
> > > If it helps to provide more information, please let me know and I'll
> > > dig them out.
> > >
> > >  	  Say Y here if you have a PS/2 mouse connected to your system. This
> > >  	  includes the standard 2 or 3-button PS/2 mouse, as well as PS/2
> > >  	  mice with wheels and extra buttons, Microsoft, Logitech or Genius
> > > -	  compatible.
> > > +	  compatible. This also includes a PS/2 mouse connected to your HIL
> > > +	  hub on PA-RISC.
> > 
> > I'm confused here!
> >
> > AFAIK if you are using HIL, you ONLY have to use the HIL keyboard/mouse
> > drivers, PS/2 is a different thing and is not involved at all.
> > (I hope I don't say anything stupid here).
> 
> Aha.  I thought it was different.  Maybe I misread Helges mail.

I'm not sure right now about the status of the HIL keyboard/mouse driver, e.g.
if it works or not in the 2.6 kernel series...
 
> > So far I thought that you cannot attach a PS/2 mouse to a HIL adapter,
> > you can only attach HIL devices ... (at least this is the case for my 730)
> 
> Well, at least physically this is possible.  I haven't tried to use
> that combination, though, since I have the original mouse and
> keyboard as well.  However, I could give it a try once I find a
> working config combination.

Yes, please.

Regards,
Helge


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Subject: Re: [parisc-linux] 	RE: New glibc patches 2004-03-08, fixes GLRO
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Carlos,

I just noticed a border effect when I try to use James method: use prefix=/usr and make  install_root=/mnt/chroot install;

Joel Soete wrote:
> 
> 
> Carlos O'Donell wrote:
> 
>> On Fri, Mar 12, 2004 at 06:33:11PM +0100, Joel Soete wrote:
>>
>>> Hmmm all output files realted to Error1 was empty because of:
>>> hppa-linux-gcc -nostdlib -nostartfiles -o 
>>> /Develop/parisc-linux/build/glibc/posix/tst-regex
>>> -Wl,-dynamic-linker=/lib/ld.so.1
                         ^^^^^^^^^^^^

When I use the previous method (prefix=/mnt/chroot) it become :

-dynamic-linker=/mnt/chroot/lib/ld.so.1

So here I can drive make -k check without pb in basic env (the one in which I build the new glibc)

OTC with James' method I would have to do it in chroot /mnt/chroot env.
And it wasn't what I did; I will so restart build and test with prefix=/mnt/chroot (as I use to do) and advise you of the new 
results ;)

That's a way to lurn ;)

Joel


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Subject: Re: [parisc-linux] 	RE: New glibc patches 2004-03-08,
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C
Joel Soete <soete.joel@tiscali.be> writes:

> arlos,
> 
> I just noticed a border effect when I try to use James method: use prefix=/usr and make  install_root=/mnt/chroot install;
> 
> Joel Soete wrote:
> > Carlos O'Donell wrote:
> >
> >> On Fri, Mar 12, 2004 at 06:33:11PM +0100, Joel Soete wrote:
> >>
> >>> Hmmm all output files realted to Error1 was empty because of:
> >>> hppa-linux-gcc -nostdlib -nostartfiles -o
> >>> /Develop/parisc-linux/build/glibc/posix/tst-regex
> >>> -Wl,-dynamic-linker=/lib/ld.so.1
>                          ^^^^^^^^^^^^

 Are you running make check after make install?

Jim


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From: Martin Schulze <joey@infodrom.org>
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Subject: Re: [parisc-linux] Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
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Helge Deller wrote:
> On Sunday 14 March 2004 19:12, Martin Schulze wrote:
> > > > For what it's worth, these settings don't activate my keyboard,
> > > > but... tadam...  the mouse is recognised, finally.  
> 
> Cool.

Well, not anymore, but more on that later.

> > > > CONFIG_INPUT_KEYBOARD=y
> > > > CONFIG_KEYBOARD_ATKBD=y
> > > > # CONFIG_KEYBOARD_SUNKBD is not set
> > > > # CONFIG_KEYBOARD_XTKBD is not set
> > > > # CONFIG_KEYBOARD_NEWTON is not set
> > > > CONFIG_KEYBOARD_HIL=y
> > > 
> > > Why do you include HIL keyboard support?
> > 
> > Because the keyboad is connected to a HIL hub and it's also a
> > reminiscent of the time before I learned that the keyboard and mouse
> > are not handled entirely separate anymore.  I still have to strip some
> > config options from the configuration.
> 
> I think the main question here is which type of keyboard you have.
> Either it's a HIL keyboard (with the special HIL connector), or it's a 
> PS/2 keyboard.

It's HP A2840-60201 (according to the plate on the bottom).  It's
connected to a HIL hub with a PS/2 like connector.  The HIL hub is
connected to the machine with an RJ45 (like) connector.

The keyboard onlyworks with these three set:

CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_HIL=y

> My 715/64 for example has a HIL HUB too, and here the mouse and
> keyboard are 100% HIL only devices.

I can connect a regular PC PS/2 keyboard to the HIL hub and it'll
work.  I have an obscure PS/2 keyboard as well, which produces
'failure initializing keyboard' or something alike.  Now that I look
at the keyboard more closely, it's really a strange one, dunno where I
got *that* one from.  Anyway, regular PS/2 works fine.  HP keyboard
works fine as well.

> AFAIK, there are other HIL Hubs too, which provides original PS/2
> ports and HIL ports. So, which kind of connector does your keyboard has ?

Looks like I need to take picture.  Ah, found one:
<http://www.schrotthal.de/hp/hp_hil_ps2_hub.jpg> That's the HIL hub,
named HIL PS/2 hub, well.  I also have a very old HIL hub without PS/2
(like) jacks, but that's for an entirely different machine and
generation.

> Serial mice should work. I didn't tested it for some time now, but if
> it's broken I would like to know.

I'll have to retry that as well.

> Ok. So your keyboard seem to be a HIL keyboard ?

Since a regular PS/2 keyboard works as well, I guess it's a PS/2
keyboard actually.

> But it's strange, that your PS/2 mouse works then... I'm confused.

Don't be confused, it doesn't work anymore.

> I'm not sure right now about the status of the HIL keyboard/mouse driver, e.g.
> if it works or not in the 2.6 kernel series...

FWIW: I had mouse support and I had keyboard support.  Just not at the
same time unfortunately.  So in general it works at least.  The
configuration is a bit non-intuitive since you'll have to enable
HIL_KBD and AT_KBD.  However, logically it makes sense.

> > > So far I thought that you cannot attach a PS/2 mouse to a HIL adapter,
> > > you can only attach HIL devices ... (at least this is the case for my 730)
> > 
> > Well, at least physically this is possible.  I haven't tried to use
> > that combination, though, since I have the original mouse and
> > keyboard as well.  However, I could give it a try once I find a
> > working config combination.
> 
> Yes, please.

I'll connect a regular PC PS/2 mouse once I have mouse support again.
PS/2 keyboard works fine.

Regards,

	Joey

-- 
Life is too short to run proprietary software.  -- Bdale Garbee


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Subject: [parisc-linux] Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
Date: Sun, 14 Mar 2004 21:47:04 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:21082

Martin Schulze wrote:
> > > # Input Device Drivers
> > > #
> > > CONFIG_INPUT_KEYBOARD=y
> > > # CONFIG_KEYBOARD_ATKBD is not set
> > 
> > Please enable this one (CONFIG_KEYBOARD_ATKBD), and....
> > 
> > > # CONFIG_KEYBOARD_SUNKBD is not set
> > > # CONFIG_KEYBOARD_XTKBD is not set
> > > # CONFIG_KEYBOARD_NEWTON is not set
> > > CONFIG_KEYBOARD_HIL=y
> > > CONFIG_INPUT_MOUSE=y
> > > # CONFIG_MOUSE_PS2 is not set
> > 
> > this one too.
> > 
> 
> For what it's worth, these settings don't activate my keyboard,
> but... tadam...  the mouse is recognised, finally.  However, if

That must have been a strange accidential coincidence, since I haven't
been able to use the mouse again but the keyboard worked as expected.
I'm totally puzzled at the moment.

Keyboard: yes
Mouse: no

CONFIG_INPUT=y
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_HIL=y
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
CONFIG_SERIO_GSCPS2=y

Anything missing?

If anybody is interested, here's the kernel config
http://luonnotar.infodrom.org/~joey/config

FWIW, without CONFIG_KEYBOARD_ATKBD (in connection to CONFIG_KEYBOARD_HIL)
the keyboard is dead as a doornail, hint-thanks go to Helge.

Here's what the kernel says during boot:

mice: PS/2 mouse device common for all mice
serio: GSC PS2 keyboard port at 0xf0108000 irq 69 @ parisc2:0:11
input: AT Raw Set 2 keyboard on parisc2:0:11
serio: GSC PS2 mouse port at 0xf0108100 irq 69 @ parisc2:0:12

That would make me think that the mouse is detected, though.

It also says lots of:
HP SDC: Transaction add failed: transaction already queued?
I guess this has nothing to do with the mouse problem.

Regards,

	Joey

-- 
Life is too short to run proprietary software.  -- Bdale Garbee


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Subject: [parisc-linux] Re: Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
Date: Sun, 14 Mar 2004 21:49:59 +0100
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Helge Deller wrote:
> On Sunday 14 March 2004 08:37, Martin Schulze wrote:
> > > In the latest 2.6 kernel series, we switched from a parisc-only
> > > PS/2 mouse/keyboard driver to the standard linux kernel PS/2
> > > mouse keyboard drivers.
> > 
> > Makes sense.  However, would it be useful to add this to the config
> > help texts?  Same for the dependency of a HIL mouse to the MOUSE_PS2,
> > if HIL always takes PS/2 mice.  I know this is not the case in general,
> > since my 425 uses HIL but doesn't use PS/2, but then again, it's m68k
> > and not parisc.  However, it may be the case on PA-RISC, I don't know.
> > In that case it may make sense to rearrange the ordering and move
> > MOUSE_HIL up so it can pre-select MOUSE_PS2.
> > 
> > Anyway, here's a short improvement for the MOUSE_PS2 help text:
> > 
> > --- Kconfig.orig	Sun Mar 14 08:27:51 2004
> > +++ Kconfig	Sun Mar 14 08:31:18 2004
> > @@ -22,7 +22,8 @@
> >  	  Say Y here if you have a PS/2 mouse connected to your system. This
> >  	  includes the standard 2 or 3-button PS/2 mouse, as well as PS/2
> >  	  mice with wheels and extra buttons, Microsoft, Logitech or Genius
> > -	  compatible.
> > +	  compatible. This also includes a PS/2 mouse connected to your HIL
> > +	  hub on PA-RISC.
> >  
> >  	  Synaptics TouchPad users might be interested in a specialized
> >  	  XFree86 driver at:
> 
> Hi Joey
> 
> I don't know if this makes sense to be too verbose here....
> "...a PS/2 mouse connected to your system..." looks pretty ok, independed
> if it is connected to a HIL hub or not.

Well, if you *know* that it's a PS/2 mouse and PS/2 keyboard, you're
correct.  However, does everybody know that who gets hold of a PARISC
machine fully equipped with HIL hub and stuff?  Maybe it's just me
who hasn't expected that since the old (really old) machines didn't
use pc standard equipment and since PA machines usually use different
parts.  You choose since you're more familiar with the port.

Regards,

	Joey

-- 
Life is too short to run proprietary software.  -- Bdale Garbee


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Subject: Re: [parisc-linux] Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
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Hi Martin,

On Sunday 14 March 2004 21:28, Martin Schulze wrote:
> > I think the main question here is which type of keyboard you have.
> > Either it's a HIL keyboard (with the special HIL connector), or it's a 
> > PS/2 keyboard.
> 
> It's HP A2840-60201 (according to the plate on the bottom).  It's
> connected to a HIL hub with a PS/2 like connector.  The HIL hub is
> connected to the machine with an RJ45 (like) connector.
> 
> The keyboard onlyworks with these three set:
> 
> CONFIG_INPUT_KEYBOARD=y
> CONFIG_KEYBOARD_ATKBD=y
> CONFIG_KEYBOARD_HIL=y

CONFIG_KEYBOARD_ATKBD and CONFIG_KEYBOARD_HIL
have nothing to do with each other. Reading your reply below,
it seems, that you will only need CONFIG_KEYBOARD_ATKBD.
I think, the HUB is only used to "transport" the PS/2 signals to your computer,
and uses some cables inside the HIL cable.

> > My 715/64 for example has a HIL HUB too, and here the mouse and
> > keyboard are 100% HIL only devices.
> 
> I can connect a regular PC PS/2 keyboard to the HIL hub and it'll
> work.  I have an obscure PS/2 keyboard as well, which produces
> 'failure initializing keyboard' or something alike.  Now that I look
> at the keyboard more closely, it's really a strange one, dunno where I
> got *that* one from.  Anyway, regular PS/2 works fine.  HP keyboard
> works fine as well.

Yup, then it's definitively a PS/2 keyboard.

> > AFAIK, there are other HIL Hubs too, which provides original PS/2
> > ports and HIL ports. So, which kind of connector does your keyboard has ?
> 
> Looks like I need to take picture.  Ah, found one:
> <http://www.schrotthal.de/hp/hp_hil_ps2_hub.jpg> That's the HIL hub,
> named HIL PS/2 hub, well.  I also have a very old HIL hub without PS/2
> (like) jacks, but that's for an entirely different machine and
> generation.

Yes. My HUB has only HIL connectors and is for a 715/64.
 
> > Serial mice should work. I didn't tested it for some time now, but if
> > it's broken I would like to know.
> 
> I'll have to retry that as well.

Ok.

> > But it's strange, that your PS/2 mouse works then... I'm confused.
> 
> Don't be confused, it doesn't work anymore.

I would be interested in your dmesg log.
Mine (HIL only!) looks like this:

mice: PS/2 mouse device common for all mice
serio: GSC PS2 keyboard port at 0xf0108000 irq 69 @ parisc2:0:11
gscps2.c: timeout - could not write byte 0xed
gscps2.c: sending byte 0xed failed.

-> OK, since I only have a HIL keyboard.

serio: GSC PS2 mouse port at 0xf0108100 irq 69 @ parisc2:0:12
gscps2.c: timeout - could not write byte 0xed
gscps2.c: sending byte 0xed failed.

-> OK, since I only have a HIL mouse.

HP SDC: HP SDC reports successful PUP.
HP SDC: HP SDC at 0xf0201000, IRQ 126 (NMI IRQ 125)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.

-> OK, the HIL stuff is detected. (BTW, test this after power-cycling the machine!)

and then nearly at the end of dmesg:
HIL KEYB: HIL keyboard found (did = 0xcf, lang = german)
input: HIL keyboard, ID: 207
HIL PTR: HIL pointer device found (did: 0x68, axis: relative)
HIL PTR: HIL pointer has 3 buttons and 1 sets of 2 axes
input: HIL pointer device (HIL mouse), ID: 104

This is now HIL keyboard and HIL mouse.
So my HIL mouse is detected, but doesn't seem to work yet.... :-( 
 
> > I'm not sure right now about the status of the HIL keyboard/mouse driver, e.g.
> > if it works or not in the 2.6 kernel series...
> 
> FWIW: I had mouse support and I had keyboard support.  Just not at the
> same time unfortunately.  So in general it works at least.  The
> configuration is a bit non-intuitive since you'll have to enable
> HIL_KBD and AT_KBD.  However, logically it makes sense.

No. You should disable HIL_KBD (but it doesn't hurt either).

> > > > So far I thought that you cannot attach a PS/2 mouse to a HIL adapter,
> > > > you can only attach HIL devices ... (at least this is the case for my 730)
> > > 
> > > Well, at least physically this is possible.  I haven't tried to use
> > > that combination, though, since I have the original mouse and
> > > keyboard as well.  However, I could give it a try once I find a
> > > working config combination.
> > 
> > Yes, please.
> 
> I'll connect a regular PC PS/2 mouse once I have mouse support again.
> PS/2 keyboard works fine.

As said above: Hard Power-cycle the machine before each test!
Furthermore you might try to increase the value of mdelay(6); in line 168
in file linux-2.6/drivers/input/serio/gscps2.c...
Maybe it's a timing issue ?

This is what you should have in your .config:
CONFIG_SERIO_GSCPS2=y
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y

Helge


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Xref: news.gmane.org gmane.linux.ports.parisc:21085

On Sunday 14 March 2004 21:47, Martin Schulze wrote:
> That must have been a strange accidential coincidence, since I haven't
> been able to use the mouse again but the keyboard worked as expected.
> I'm totally puzzled at the moment.
> 
> Keyboard: yes
> Mouse: no
> 
> CONFIG_INPUT=y
> CONFIG_INPUT_MOUSE=y
> CONFIG_MOUSE_PS2=y
> CONFIG_MOUSE_HIL=y
> CONFIG_SERIO=y
> CONFIG_SERIO_SERPORT=y
> CONFIG_SERIO_GSCPS2=y
> 
> Anything missing?

CONFIG_INPUT_KEYBOARD=y, but it seems you just forgot to add it to this list.

> Here's what the kernel says during boot:
> 
> mice: PS/2 mouse device common for all mice
> serio: GSC PS2 keyboard port at 0xf0108000 irq 69 @ parisc2:0:11
> input: AT Raw Set 2 keyboard on parisc2:0:11
> serio: GSC PS2 mouse port at 0xf0108100 irq 69 @ parisc2:0:12
> 
> That would make me think that the mouse is detected, though.

No, it's not.
I'm missing something like:
"input: Logitech mouse on parisc2:0:12".....

> It also says lots of:
> HP SDC: Transaction add failed: transaction already queued?
> I guess this has nothing to do with the mouse problem.

Disable all HIL/SDC stuff.

Helge


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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
Date: Sun, 14 Mar 2004 17:31:27 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:21086

> Well, if you *know* that it's a PS/2 mouse and PS/2 keyboard, you're
> correct.  However, does everybody know that who gets hold of a PARISC
> machine fully equipped with HIL hub and stuff?  Maybe it's just me
> who hasn't expected that since the old (really old) machines didn't
> use pc standard equipment and since PA machines usually use different
> parts.  You choose since you're more familiar with the port.

Well, maybe it would be better to make this a FAQ on the parisc-linux
web site?

grant


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From: "M. Grabert" <xam@cs.ucc.ie>
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Subject: [parisc-linux] SCSI broken in latest CVS changes
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  This message is in MIME format.  The first part should be readable text,
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---275789367-115821417-1079319801=:17258
Content-Type: TEXT/PLAIN; charset=US-ASCII

Hi,

I was using a linux-2.6.4-pa2 (CVS, up to and including the following patch:
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2004-March/033902.html)
which was working fine.

However the later/latest CVS changes obviously broke sym2 SCSI:
It doesn't detect any of the two internal 9 GB LVD-SCSI of my C3k.

I didn't change anything in the config, and I made a "make clean" and
another CVS update just to be sure (my CVS checkout seems to be clean),
and rebuild twice.

Attached my bootlog.


Thanks alot in advance,
  Max
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---275789367-115821417-1079319801=:17258--


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> Are you running make check after make install?
>
Yes, but as mentioned in the original build env and not in the chrooted env
as it seems I would had to do.

hth,
    Joel



----------------------------------------------------------------------------------------
Tiscali ADSL: 19,50 /mois, pendant 3 mois! L'Internet rapide, c'est pour
tout le monde.
http://reg.tiscali.be/default.asp?lg=fr





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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] Spinlock patch, take 2
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Here's another version of my spinlock patch against 2.6.4. It optimizes
spinlocks used for atomic operations by putting the atomic locks into a
special section that is guaranteed to be 16-byte aligned, so no runtime
alignment is needed. Build-tested against 2.6.4. Comments?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


Index: arch/parisc/kernel/vmlinux.lds.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/vmlinux.lds.S,v
retrieving revision 1.8
diff -u -p -r1.8 vmlinux.lds.S
--- a/arch/parisc/kernel/vmlinux.lds.S	8 Mar 2004 16:54:08 -0000	1.8
+++ b/arch/parisc/kernel/vmlinux.lds.S	15 Mar 2004 06:30:53 -0000
@@ -87,6 +87,10 @@ SECTIONS
   . = ALIGN(L1_CACHE_BYTES);
   .data.cacheline_aligned : { *(.data.cacheline_aligned) }
 
+  /* PA-RISC locks requires 16-byte alignment */
+  . = ALIGN(16);
+  .data.lock_aligned : { *(.data.lock_aligned) }
+
   _edata = .;			/* End of data section */
 
   . = ALIGN(16384); 		/* init_task */
Index: arch/parisc/lib/bitops.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/lib/bitops.c,v
retrieving revision 1.1
diff -u -p -r1.1 bitops.c
--- a/arch/parisc/lib/bitops.c	29 Jul 2003 17:00:41 -0000	1.1
+++ b/arch/parisc/lib/bitops.c	15 Mar 2004 06:30:53 -0000
@@ -13,22 +13,20 @@
 #include <asm/atomic.h>
 
 #ifdef CONFIG_SMP
-spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] = {
-	[0 ... (ATOMIC_HASH_SIZE-1)]  = SPIN_LOCK_UNLOCKED
+atomic_lock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
+	[0 ... (ATOMIC_HASH_SIZE-1)]  = (atomic_lock_t) { 1, { 0, 0, 0 } }
 };
 #endif
 
-spinlock_t __atomic_lock = SPIN_LOCK_UNLOCKED;
-
 #ifdef __LP64__
 unsigned long __xchg64(unsigned long x, unsigned long *ptr)
 {
 	unsigned long temp, flags;
 
-	SPIN_LOCK_IRQSAVE(ATOMIC_HASH(ptr), flags);
+	atomic_spin_lock_irqsave(ATOMIC_HASH(ptr), flags);
 	temp = *ptr;
 	*ptr = x;
-	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(ptr), flags);
+	atomic_spin_unlock_irqrestore(ATOMIC_HASH(ptr), flags);
 	return temp;
 }
 #endif
@@ -38,10 +36,10 @@ unsigned long __xchg32(int x, int *ptr)
 	unsigned long flags;
 	unsigned long temp;
 
-	SPIN_LOCK_IRQSAVE(ATOMIC_HASH(ptr), flags);
+	atomic_spin_lock_irqsave(ATOMIC_HASH(ptr), flags);
 	(long) temp = (long) *ptr;	/* XXX - sign extension wanted? */
 	*ptr = x;
-	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(ptr), flags);
+	atomic_spin_unlock_irqrestore(ATOMIC_HASH(ptr), flags);
 	return temp;
 }
 
@@ -51,10 +49,10 @@ unsigned long __xchg8(char x, char *ptr)
 	unsigned long flags;
 	unsigned long temp;
 
-	SPIN_LOCK_IRQSAVE(ATOMIC_HASH(ptr), flags);
+	atomic_spin_lock_irqsave(ATOMIC_HASH(ptr), flags);
 	(long) temp = (long) *ptr;	/* XXX - sign extension wanted? */
 	*ptr = x;
-	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(ptr), flags);
+	atomic_spin_unlock_irqrestore(ATOMIC_HASH(ptr), flags);
 	return temp;
 }
 
@@ -65,10 +63,10 @@ unsigned long __cmpxchg_u64(volatile uns
 	unsigned long flags;
 	unsigned long prev;
 
-	SPIN_LOCK_IRQSAVE(ATOMIC_HASH(ptr), flags);
+	atomic_spin_lock_irqsave(ATOMIC_HASH(ptr), flags);
 	if ((prev = *ptr) == old)
 		*ptr = new;
-	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(ptr), flags);
+	atomic_spin_unlock_irqrestore(ATOMIC_HASH(ptr), flags);
 	return prev;
 }
 #endif
@@ -78,9 +76,9 @@ unsigned long __cmpxchg_u32(volatile uns
 	unsigned long flags;
 	unsigned int prev;
 
-	SPIN_LOCK_IRQSAVE(ATOMIC_HASH(ptr), flags);
+	atomic_spin_lock_irqsave(ATOMIC_HASH(ptr), flags);
 	if ((prev = *ptr) == old)
 		*ptr = new;
-	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(ptr), flags);
+	atomic_spin_unlock_irqrestore(ATOMIC_HASH(ptr), flags);
 	return (unsigned long)prev;
 }
Index: include/asm-parisc/atomic.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/atomic.h,v
retrieving revision 1.5
diff -u -p -r1.5 atomic.h
--- a/include/asm-parisc/atomic.h	22 Sep 2003 14:28:12 -0000	1.5
+++ b/include/asm-parisc/atomic.h	15 Mar 2004 06:30:56 -0000
@@ -15,33 +15,48 @@
  */
 
 #ifdef CONFIG_SMP
+typedef struct {
+	unsigned int lock;
+	unsigned int pad[3];
+} atomic_lock_t;
+
 /* Use an array of spinlocks for our atomic_ts.
-** Hash function to index into a different SPINLOCK.
-** Since "a" is usually an address, ">>8" makes one spinlock per 64-bytes.
-*/
+ * Hash function to index into a different SPINLOCK.
+ * Since "a" is usually an address, ">>8" makes one spinlock per 64-bytes.
+ */
 #  define ATOMIC_HASH_SIZE 4
 #  define ATOMIC_HASH(a) (&__atomic_hash[(((unsigned long) a)>>8)&(ATOMIC_HASH_SIZE-1)])
 
-extern spinlock_t __atomic_hash[ATOMIC_HASH_SIZE];
-/* copied from <asm/spinlock.h> and modified */
-#  define SPIN_LOCK(x) \
-	do { while(__ldcw(&(x)->lock) == 0); } while(0)
-	
-#  define SPIN_UNLOCK(x) \
-	do { (x)->lock = 1; } while(0)
+extern atomic_lock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
+
+static inline void atomic_spin_lock(atomic_lock_t *a)
+{
+	while (__ldcw(&a->lock) == 0)
+		while (a->lock == 0);
+}
+
+static inline void atomic_spin_unlock(atomic_lock_t *a)
+{
+	a->lock = 1;
+}
+
 #else
 #  define ATOMIC_HASH_SIZE 1
 #  define ATOMIC_HASH(a)	(0)
-
-/* copied from <linux/spinlock.h> and modified */
-#  define SPIN_LOCK(x) (void)(x)
-	
-#  define SPIN_UNLOCK(x) do { } while(0)
+#  define atomic_spin_lock(x) (void)(x)
+#  define atomic_spin_unlock(x) do { } while(0)
 #endif
 
 /* copied from <linux/spinlock.h> and modified */
-#define SPIN_LOCK_IRQSAVE(lock, flags)		do { local_irq_save(flags);       SPIN_LOCK(lock); } while (0)
-#define SPIN_UNLOCK_IRQRESTORE(lock, flags)	do { SPIN_UNLOCK(lock);  local_irq_restore(flags); } while (0)
+#define atomic_spin_lock_irqsave(lock, flags)	do { 	\
+	local_irq_save(flags);				\
+	atomic_spin_lock(lock); 			\
+} while (0)
+
+#define atomic_spin_unlock_irqrestore(lock, flags) do {	\
+	atomic_spin_unlock(lock);			\
+	local_irq_restore(flags);			\
+} while (0)
 
 /* Note that we need not lock read accesses - aligned word writes/reads
  * are atomic, so a reader never sees unconsistent values.
@@ -137,22 +152,22 @@ static __inline__ int __atomic_add_retur
 {
 	int ret;
 	unsigned long flags;
-	SPIN_LOCK_IRQSAVE(ATOMIC_HASH(v), flags);
+	atomic_spin_lock_irqsave(ATOMIC_HASH(v), flags);
 
 	ret = (v->counter += i);
 
-	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(v), flags);
+	atomic_spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
 	return ret;
 }
 
 static __inline__ void atomic_set(atomic_t *v, int i) 
 {
 	unsigned long flags;
-	SPIN_LOCK_IRQSAVE(ATOMIC_HASH(v), flags);
+	atomic_spin_lock_irqsave(ATOMIC_HASH(v), flags);
 
 	v->counter = i;
 
-	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(v), flags);
+	atomic_spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
 }
 
 static __inline__ int atomic_read(const atomic_t *v)
Index: include/asm-parisc/bitops.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/bitops.h,v
retrieving revision 1.7
diff -u -p -r1.7 bitops.h
--- a/include/asm-parisc/bitops.h	11 Sep 2003 18:29:02 -0000	1.7
+++ b/include/asm-parisc/bitops.h	15 Mar 2004 06:30:56 -0000
@@ -38,9 +38,9 @@ static __inline__ void set_bit(int nr, v
 
 	addr += (nr >> SHIFT_PER_LONG);
 	mask = 1L << CHOP_SHIFTCOUNT(nr);
-	SPIN_LOCK_IRQSAVE(ATOMIC_HASH(addr), flags);
+	atomic_spin_lock_irqsave(ATOMIC_HASH(addr), flags);
 	*addr |= mask;
-	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(addr), flags);
+	atomic_spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
 }
 
 static __inline__ void __set_bit(int nr, void * address)
@@ -61,9 +61,9 @@ static __inline__ void clear_bit(int nr,
 
 	addr += (nr >> SHIFT_PER_LONG);
 	mask = 1L << CHOP_SHIFTCOUNT(nr);
-	SPIN_LOCK_IRQSAVE(ATOMIC_HASH(addr), flags);
+	atomic_spin_lock_irqsave(ATOMIC_HASH(addr), flags);
 	*addr &= ~mask;
-	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(addr), flags);
+	atomic_spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
 }
 
 static __inline__ void __clear_bit(unsigned long nr, volatile void * address)
@@ -84,9 +84,9 @@ static __inline__ void change_bit(int nr
 
 	addr += (nr >> SHIFT_PER_LONG);
 	mask = 1L << CHOP_SHIFTCOUNT(nr);
-	SPIN_LOCK_IRQSAVE(ATOMIC_HASH(addr), flags);
+	atomic_spin_lock_irqsave(ATOMIC_HASH(addr), flags);
 	*addr ^= mask;
-	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(addr), flags);
+	atomic_spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
 }
 
 static __inline__ void __change_bit(int nr, void * address)
@@ -108,10 +108,10 @@ static __inline__ int test_and_set_bit(i
 
 	addr += (nr >> SHIFT_PER_LONG);
 	mask = 1L << CHOP_SHIFTCOUNT(nr);
-	SPIN_LOCK_IRQSAVE(ATOMIC_HASH(addr), flags);
+	atomic_spin_lock_irqsave(ATOMIC_HASH(addr), flags);
 	oldbit = (*addr & mask) ? 1 : 0;
 	*addr |= mask;
-	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(addr), flags);
+	atomic_spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
 
 	return oldbit;
 }
@@ -139,10 +139,10 @@ static __inline__ int test_and_clear_bit
 
 	addr += (nr >> SHIFT_PER_LONG);
 	mask = 1L << CHOP_SHIFTCOUNT(nr);
-	SPIN_LOCK_IRQSAVE(ATOMIC_HASH(addr), flags);
+	atomic_spin_lock_irqsave(ATOMIC_HASH(addr), flags);
 	oldbit = (*addr & mask) ? 1 : 0;
 	*addr &= ~mask;
-	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(addr), flags);
+	atomic_spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
 
 	return oldbit;
 }
@@ -170,10 +170,10 @@ static __inline__ int test_and_change_bi
 
 	addr += (nr >> SHIFT_PER_LONG);
 	mask = 1L << CHOP_SHIFTCOUNT(nr);
-	SPIN_LOCK_IRQSAVE(ATOMIC_HASH(addr), flags);
+	atomic_spin_lock_irqsave(ATOMIC_HASH(addr), flags);
 	oldbit = (*addr & mask) ? 1 : 0;
 	*addr ^= mask;
-	SPIN_UNLOCK_IRQRESTORE(ATOMIC_HASH(addr), flags);
+	atomic_spin_unlock_irqrestore(ATOMIC_HASH(addr), flags);
 
 	return oldbit;
 }
Index: include/asm-parisc/spinlock.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/spinlock.h,v
retrieving revision 1.1
diff -u -p -r1.1 spinlock.h
--- a/include/asm-parisc/spinlock.h	29 Jul 2003 17:02:04 -0000	1.1
+++ b/include/asm-parisc/spinlock.h	15 Mar 2004 06:30:56 -0000
@@ -4,35 +4,42 @@
 #include <asm/system.h>
 
 /* Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
- * since it only has load-and-zero.
+ * since it only has load-and-zero. Moreover, at least on some PA processors,
+ * the semaphore address has to be 16-byte aligned.
  */
 
 #undef SPIN_LOCK_UNLOCKED
-#define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 }
+#define SPIN_LOCK_UNLOCKED (spinlock_t) { { 1, 1, 1, 1 } }
 
-#define spin_lock_init(x)	do { (x)->lock = 1; } while(0)
+#define spin_lock_init(x)	do { *(x) = SPIN_LOCK_UNLOCKED; } while(0)
 
-#define spin_is_locked(x) ((x)->lock == 0)
-
-#define spin_unlock_wait(x)	do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
-
-#if 1
-#define _raw_spin_lock(x) do { \
-	while (__ldcw (&(x)->lock) == 0) \
-		while (((x)->lock) == 0) ; } while (0)
-
-#else
-#define _raw_spin_lock(x) \
-	do { while(__ldcw(&(x)->lock) == 0); } while(0)
-#endif
+static inline int spin_is_locked(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	return *a == 0;
+}
+
+#define spin_unlock_wait(x)	do { barrier(); } while(spin_is_locked(x))
+
+static inline void _raw_spin_lock(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	while (__ldcw(a) == 0)
+		while (*a == 0);
+}
+
+static inline void _raw_spin_unlock(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	*a = 1;
+}
+
+static inline int _raw_spin_trylock(spinlock_t *x)
+{
+	volatile unsigned int *a = __ldcw_align(x);
+	return __ldcw(a) != 0;
+}
 	
-#define _raw_spin_unlock(x) \
-	do { (x)->lock = 1; } while(0)
-
-#define _raw_spin_trylock(x) (__ldcw(&(x)->lock) != 0)
-
-
-
 /*
  * Read-write spinlocks, allowing multiple readers
  * but only one writer.
@@ -42,7 +49,7 @@ typedef struct {
 	volatile int counter;
 } rwlock_t;
 
-#define RW_LOCK_UNLOCKED (rwlock_t) { {1}, 0 }
+#define RW_LOCK_UNLOCKED (rwlock_t) { { { 1, 1, 1, 1 } }, 0 }
 
 #define rwlock_init(lp)	do { *(lp) = RW_LOCK_UNLOCKED; } while (0)
 
Index: include/asm-parisc/system.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/system.h,v
retrieving revision 1.1
diff -u -p -r1.1 system.h
--- a/include/asm-parisc/system.h	29 Jul 2003 17:02:04 -0000	1.1
+++ b/include/asm-parisc/system.h	15 Mar 2004 06:30:57 -0000
@@ -145,6 +145,19 @@ static inline void set_eiem(unsigned lon
 	__ret; \
 })
 
+/* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
+   and GCC only guarantees 8-byte alignment for stack locals, we can't
+   be assured of 16-byte alignment for atomic lock data even if we
+   specify "__attribute ((aligned(16)))" in the type declaration.  So,
+   we use a struct containing an array of four ints for the atomic lock
+   type and dynamically select the 16-byte aligned int from the array
+   for the semaphore.  */
+#define __PA_LDCW_ALIGNMENT 16
+#define __ldcw_align(a) ({ \
+  unsigned long __ret = (unsigned long) a;                     		\
+  __ret = (__ret + __PA_LDCW_ALIGNMENT - 1) & ~(__PA_LDCW_ALIGNMENT - 1); \
+  (volatile unsigned int *) __ret;                                      \
+})
 
 #ifdef CONFIG_SMP
 /*
@@ -152,8 +165,11 @@ static inline void set_eiem(unsigned lon
  */
 
 typedef struct {
-	volatile unsigned int __attribute__((aligned(16))) lock;
+	volatile unsigned int lock[4];
 } spinlock_t;
+
+#define __lock_aligned __attribute__((__section__(".data.lock_aligned")))
+
 #endif
 
 #endif


From - Thu Nov 08 21:31:17 2018
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Subject: Re: [parisc-linux] Spinlock patch, take 2
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On Sun, Mar 14, 2004 at 10:33:18PM -0800, Randolph Chung wrote:
> Here's another version of my spinlock patch against 2.6.4. It optimizes
> spinlocks used for atomic operations by putting the atomic locks into a
> special section that is guaranteed to be 16-byte aligned, so no runtime
> alignment is needed. Build-tested against 2.6.4. Comments?

Looks beautiful. Is it measurably faster, or just semantically more
correct than the existing implementation? :)

c.



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Subject: Re: [parisc-linux] Spinlock patch, take 2
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> Looks beautiful. Is it measurably faster, or just semantically more
> correct than the existing implementation? :)

i have not done any measurements. the spinlock_t stuff is needed since
we've agreed that the attribute((aligned(16)) is not sufficient to
guarantee correct alignment. the atomic-lock optimization is based on
some discussions we had a few months ago. i'd like to actually try
these, but we still don't have a bootable SMP kernel yet :(

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] Re: Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
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Grant Grundler wrote:
> > Well, if you *know* that it's a PS/2 mouse and PS/2 keyboard, you're
> > correct.  However, does everybody know that who gets hold of a PARISC
> > machine fully equipped with HIL hub and stuff?  Maybe it's just me
> > who hasn't expected that since the old (really old) machines didn't
> > use pc standard equipment and since PA machines usually use different
> > parts.  You choose since you're more familiar with the port.
> 
> Well, maybe it would be better to make this a FAQ on the parisc-linux
> web site?

Aye!

--- /tmp/work/faq.html.orig	2004-03-15 09:36:25.000000000 +0100
+++ /tmp/work/faq.html	2004-03-15 09:41:54.000000000 +0100
@@ -8,6 +8,23 @@
   <li>First of all, your kernel has to be 2.4.18-pa45 or higher.<br>
       Earlier kernel versions will not work !
   </li>
+
+  <li>In the latest 2.6 kernel series, we switched from a PA-RISC-only
+      PS/2 mouse/keyboard driver to the standard Linux kernel PS/2
+      mouse and keyboard drivers.  Hence, in order to get your PS/2
+      mouse/keyboard connected via HIL work you'll have to enable
+      <ul>
+      <li> CONFIG_KEYBOARD_ATKBD
+      <li> CONFIG_MOUSE_PS2
+      </ul>
+      in addition to
+      <ul>
+      <li> CONFIG_INPUT_KEYBOARD
+      <li> CONFIG_KEYBOARD_HIL
+      <li> CONFIG_INPUT_MOUSE
+      <li> CONFIG_MOUSE_HIL
+      </ul>
+  </li>
   <li>On the bash prompt enter as root the following comand:<br>
       <code>cd /dev && ./MAKEDEV input</code><br>
       This command creates the standard input device nodes in the /dev/input/

-- 
Whenever you meet yourself you're in a time loop or in front of a mirror.


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Re-post as I forgot the subject first time round :-(

My B132L has its console on an HCRX-24Z GSC card (A4071B_LZ). In
2.4.25-pa1 it defaults to 32bpp and works fine. In 2.6.4-rc1-pa2 (and
2.6.3-pa0) it
defaults to 8bpp which also works fine. The problem occurs if I try to run
2.6.x in 32bpp (either via stifb=bpp:32, or by hacking stifb.c). The machine
locks hard immediately after switching to the FB. The screen is full of
corrupted junk in psychedelic colours from the previous shutdown and I
have to hit the power button to boot again.

The HCRX24 is correctly identified in stifb.c as S9000_ID_HCRX and
IS_24_DEVICE(fb) is true. Is anybody using one of these cards in 32bpp?
Should I try an HCRX-24 without the the Z board? I see that the code has
been  shuffled around a bit between 2.4.25 and 2.6.x and I'm not exactly
sure where to start looking for problems. Studying the listings side by
side I'm suspicious of the colormap stuff, but only because I don't yet
understand a) how it works, and b) the changes between 2.4 and 2.6.

cheers,
-Andy





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Hi, =


I wrote this week-end a document to sum up all the arch that Linux 2.6.4 s=
upport. I extracted the informations from the source and I would like to h=
ave comments/changes/advice from you about the PA-RISC part. I have maybe =
make some mistake and/or things are little bit different so I would like y=
ou to take a look at this (I removed the non-PARISC parts, the complete fi=
le is around 11ko) before suggesting a patch. =


Thanks, =

(Please cc me) =


Jerome Pinot

diff -Nru -U 2 linux-2.6.4.orig/Documentation/ARCH linux-2.6.4/Documentati=
on/ARCH
--- linux-2.6.4.orig/Documentation/ARCH	1970-01-01 09:00:00.000000000 +090=
0
+++ linux-2.6.4/Documentation/ARCH	2004-03-15 16:20:06.000000000 +0900
=40=40 -0,0 +1,425 =40=40
+
+March 2004		Supported arch for Linux		v2.6.4
+			=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E
+
+
+The following is a quite complete list of all the arch supported by Linux=
=2E
+Of course, you will find here Alpha, ARM, ARM26, CRIS, H8300, i386, IA-64=
,
+M68000, MIPS, PA-RISC, PPC, S390, SH, SPARC, v850 and x86-64. But you wil=
l
+find too a complete list of CPUs and board supported by the kernel. For =

+each part, first list means =22board=22 and second one means =22CPU=22.
+
+
+ Content:
+ =7E=7E=7E=7E=7E=7E=7E=7E
+	1. i386		7. IA-64		13. S390
+	2. Alpha	8. M68K (w/o MMU)	14. SuperH
+	3. ARM		9. MIPS (32/64)		15. SPARC
+	4. ARM26	10. PA-RISC		16. UltraSPARC
+	5. CRIS		11. PPC			17. v850
+	6. H8300	12. PPC64		18. x86-64

=5Bsnip=5D

+ 10. PA-RISC
+ =7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E
+	PA7000/PA7100
+	PA7100LC/PA7300LC	(used in 712, 715/Mirage, A180, B132, C160L)
+	PA7200			(PCX-T' processor used in C110, D100 ...)
+	PA8000			(PCX-U to PCX-W2 processors)
+
+  (see Documentation/parisc)
+  <http://www.parisc-linux.org>

EOF




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Xref: news.gmane.org gmane.linux.ports.parisc:21095

On Mon, Mar 15, 2004 at 02:53:05PM +0100, pinotj@club-internet.fr wrote:
> I wrote this week-end a document to sum up all the arch that Linux
> 2.6.4 support. I extracted the informations from the source and I would
> like to have comments/changes/advice from you about the PA-RISC part. I
> have maybe make some mistake and/or things are little bit different so
> I would like you to take a look at this (I removed the non-PARISC parts,
> the complete file is around 11ko) before suggesting a patch.

This doesn't seem *terribly* useful in its current form ... and of course there are some mistakes.  It might help if I saw what the other entries look like,
but it might make more sense to say something like:

+ 10. PA-RISC
+ ~~~~~~~~~~~
+	705, 710, 720, 730, 750
+	712, 715, 725, 735, 755
+	B, C, J class workstations
+	D, K, R, A, L, N class servers and rpXXXX servers
+	T and V class servers are not supported
+	Superdome will need some additional work.
+
+  (see Documentation/parisc)
+  <http://www.parisc-linux.org>


> --- linux-2.6.4.orig/Documentation/ARCH	1970-01-01 09:00:00.000000000 +0900
> +++ linux-2.6.4/Documentation/ARCH	2004-03-15 16:20:06.000000000 +0900
> @@ -0,0 +1,425 @@
> + Content:
> + ~~~~~~~~
> +	1. i386		7. IA-64		13. S390
> +	2. Alpha	8. M68K (w/o MMU)	14. SuperH
> +	3. ARM		9. MIPS (32/64)		15. SPARC
> +	4. ARM26	10. PA-RISC		16. UltraSPARC
> +	5. CRIS		11. PPC			17. v850
> +	6. H8300	12. PPC64		18. x86-64

S390 and PA-RISC also support both 32 and 64 bit.
I'd leave off the 'w/o MMU' tag from M68k since both are supported.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Subject: Re: [parisc-linux] Re: Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
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Martin Schulze wrote:
> Grant Grundler wrote:
> > > Well, if you *know* that it's a PS/2 mouse and PS/2 keyboard, you're
> > > correct.  However, does everybody know that who gets hold of a PARISC
> > > machine fully equipped with HIL hub and stuff?  Maybe it's just me
> > > who hasn't expected that since the old (really old) machines didn't
> > > use pc standard equipment and since PA machines usually use different
> > > parts.  You choose since you're more familiar with the port.
> > 
> > Well, maybe it would be better to make this a FAQ on the parisc-linux
> > web site?
> 
> Aye!

Maybe this one is better since CONFIG_KEYBOARD_HIL and CONFIG_HIL_MLC
aren't required.  I'm not sure about the mouse part since mine doesn't
yet work again.

--- /tmp/work/faq.html.orig	2004-03-15 09:36:25.000000000 +0100
+++ /tmp/work/faq.html	2004-03-15 10:44:59.000000000 +0100
@@ -8,6 +8,27 @@
   <li>First of all, your kernel has to be 2.4.18-pa45 or higher.<br>
       Earlier kernel versions will not work !
   </li>
+
+  <li>In the latest 2.6 kernel series, we switched from a PA-RISC-only
+      PS/2 mouse/keyboard driver to the standard Linux kernel PS/2
+      mouse and keyboard drivers.  Hence, in order to get your PS/2
+      mouse/keyboard connected via HIL work you'll have to enable
+      <ul>
+      <li> CONFIG_KEYBOARD_ATKBD
+      <li> CONFIG_MOUSE_PS2
+      </ul>
+      in addition to
+      <ul>
+      <li> CONFIG_INPUT_KEYBOARD
+      <li> CONFIG_INPUT_MOUSE
+      <li> CONFIG_MOUSE_HIL
+      </ul>
+      You don't need these options anymore:
+      <ul>
+      <li> CONFIG_KEYBOARD_HIL
+      <li> CONFIG_HIL_MLC
+      </ul>
+  </li>
   <li>On the bash prompt enter as root the following comand:<br>
       <code>cd /dev && ./MAKEDEV input</code><br>
       This command creates the standard input device nodes in the /dev/input/


Regards,

	Joey

-- 
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Please always Cc to me when replying to me on the lists.


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Subject: [parisc-linux] Re: Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
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Helge Deller wrote:
> > Don't be confused, it doesn't work anymore.
> 
> I would be interested in your dmesg log.

It's at http://luonnotar.infodrom.org/~joey/dmesg.txt

> Mine (HIL only!) looks like this:
> 
> mice: PS/2 mouse device common for all mice
> serio: GSC PS2 keyboard port at 0xf0108000 irq 69 @ parisc2:0:11
> gscps2.c: timeout - could not write byte 0xed
> gscps2.c: sending byte 0xed failed.

mice: PS/2 mouse device common for all mice
serio: GSC PS2 keyboard port at 0xf0108000 irq 69 @ parisc2:0:11
input: AT Raw Set 2 keyboard on parisc2:0:11
serio: GSC PS2 mouse port at 0xf0108100 irq 69 @ parisc2:0:12

> HP SDC: HP SDC reports successful PUP.
> HP SDC: HP SDC at 0xf0201000, IRQ 126 (NMI IRQ 125)
> HP SDC: New style SDC
> HP SDC: Revision: 1820-4784
> HP SDC: TI SN76494 beeper present
> HP SDC: OKI MSM-58321 BBRTC present
> HP SDC: Spunking the self test register to force PUP on next firmware reset.
> HP SDC MLC: Registering the System Domain Controller's HIL MLC.
> 
> -> OK, the HIL stuff is detected. (BTW, test this after power-cycling the machine!)

HP SDC: HP SDC at 0xf0201000, IRQ 126 (NMI IRQ 125)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.

> and then nearly at the end of dmesg:
> HIL KEYB: HIL keyboard found (did = 0xcf, lang = german)
> input: HIL keyboard, ID: 207

Not found here, of course.

> HIL PTR: HIL pointer device found (did: 0x68, axis: relative)
> HIL PTR: HIL pointer has 3 buttons and 1 sets of 2 axes
> input: HIL pointer device (HIL mouse), ID: 104

Not found here as well.

> This is now HIL keyboard and HIL mouse.
> So my HIL mouse is detected, but doesn't seem to work yet.... :-( 

*sigh*

> > FWIW: I had mouse support and I had keyboard support.  Just not at the
> > same time unfortunately.  So in general it works at least.  The
> > configuration is a bit non-intuitive since you'll have to enable
> > HIL_KBD and AT_KBD.  However, logically it makes sense.
> 
> No. You should disable HIL_KBD (but it doesn't hurt either).

Done.  Keyboard still works.

> As said above: Hard Power-cycle the machine before each test!

Of course.  I'll have to turn it off for keyboard / mouse changes
or the machine will drop support for what I changed.

> Furthermore you might try to increase the value of mdelay(6); in line 168
> in file linux-2.6/drivers/input/serio/gscps2.c...
> Maybe it's a timing issue ?

Apparently, it was.  I now have keyboard and mouse support.
I set the delay to 12.

> This is what you should have in your .config:
> CONFIG_SERIO_GSCPS2=y
> CONFIG_INPUT_KEYBOARD=y
> CONFIG_KEYBOARD_ATKBD=y
> CONFIG_INPUT_MOUSE=y
> CONFIG_MOUSE_PS2=y

All there.

Everything's working fine now, btw.

Regards,

	Joey

-- 
Whenever you meet yourself you're in a time loop or in front of a mirror.

Please always Cc to me when replying to me on the lists.


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: =?ISO-8859-1?Q?Re=3A=20=5Bparisc=2Dlinux=5D=20=09RE=3A=20New=20glibc=20patches=202004=2D03=2D08=2C=20fixes=20GLRO=20changes=2E?=
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Xref: news.gmane.org gmane.linux.ports.parisc:21098

Hello Jim,

Sorry for confusion but you have definitely right.

[snip]use prefix=/usr and make  install_root=/mnt/chroot install;

This is the right method because if I use prefix=/mnt/chroot and 'make install',
when the install was finished and I tried chroot/mnt/chroot: here was the
error message:
chroot /mnt/chroot
/bin/bash: error while loading shared libraries: libncurses.so.5: cannot
open shared object file: No such file or directory

and strace shows me that it looking for libncurses.so.5 into /mnt/chroot/lib
:)

So to launch make -k check in this config, I foreseen to use prefix=/usr
and make install_root=/mnt/chroot; then mount -o bind /GlibcSrcFS /mnt/chroot/GlibcSrcFS;
chroot /mnt/chroot; and in this env launch the make -k check. Do you know
another solution?

Many thanks for advise,
    Joel


Joel Soete wrote:
> 
> 
> Carlos O'Donell wrote:
> 
>> On Fri, Mar 12, 2004 at 06:33:11PM +0100, Joel Soete wr
> te:
>>
>>> Hmmm all output files realted to Error1 was empty because of:
>>> hppa-linux-gcc -nostdlib -nostartfiles -o 
>>> /Develop/parisc-linux/build/glibc/posix/tst-regex
>>> -Wl,-dynamic-linker=/lib/ld.so.1
                         ^^^^^^^^^^
> ^

When I use the previous method (prefix=/mnt/chroot) it become :

-dynamic-linker=/mnt/chroot/lib/ld.so.1

So here I can drive make -k check without pb in basic env (the one in which
I build the new glibc)

OTC with James' method I would have
> to do it in chroot /mnt/chroot env.
And it wasn't what I did; I will so restart build and test with prefix=/mnt/chroot
(as I use to do) and advise you of the new 
results ;)

That's a way to lurn ;)

Joel



----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] 	RE: New glibc patches 2004-03-08,
	fixes GLRO changes.
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On Mon, Mar 15, 2004 at 06:38:46PM +0100, Joel Soete wrote:
> Hello Jim,
> 
> Sorry for confusion but you have definitely right.
> 
> [snip]use prefix=/usr and make  install_root=/mnt/chroot install;
> 
> This is the right method because if I use prefix=/mnt/chroot and 'make install',
> when the install was finished and I tried chroot/mnt/chroot: here was the
> error message:
> chroot /mnt/chroot
> /bin/bash: error while loading shared libraries: libncurses.so.5: cannot
> open shared object file: No such file or directory
> 
> and strace shows me that it looking for libncurses.so.5 into /mnt/chroot/lib
> :)
> 
> So to launch make -k check in this config, I foreseen to use prefix=/usr
> and make install_root=/mnt/chroot; then mount -o bind /GlibcSrcFS /mnt/chroot/GlibcSrcFS;
> chroot /mnt/chroot; and in this env launch the make -k check. Do you know
> another solution?

That sounds like a perfect solution! :)

Thanks Joel.

c.



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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
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On Monday 15 March 2004 18:14, Martin Schulze wrote:
> > Furthermore you might try to increase the value of mdelay(6); in line 168
> > in file linux-2.6/drivers/input/serio/gscps2.c...
> > Maybe it's a timing issue ?
> 
> Apparently, it was.  I now have keyboard and mouse support.
> I set the delay to 12.

Did you tried any other values between 6 and 12 ?
If a lower value works for you, I would like to put this one in the source....

> > This is what you should have in your .config:
> > CONFIG_SERIO_GSCPS2=y
> > CONFIG_INPUT_KEYBOARD=y
> > CONFIG_KEYBOARD_ATKBD=y
> > CONFIG_INPUT_MOUSE=y
> > CONFIG_MOUSE_PS2=y
> 
> All there.
> 
> Everything's working fine now, btw.

Cool. 

Regards,
Helge


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Subject: Re: [parisc-linux] Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
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----- Original Message ----- 
From: "Helge Deller" <deller@gmx.de>
> > > Maybe it's a timing issue ?
> >
> > Apparently, it was.  I now have keyboard and mouse support.
> > I set the delay to 12.
>
> Did you tried any other values between 6 and 12 ?
> If a lower value works for you, I would like to put this one in the
source....
>

Helge,

I'll try playing with the delay on the B132L as well and report back. Time
to
compile....

-Andy



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Subject: Re: [parisc-linux] Re: Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
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Thanks !

I added a new FAQ entry based on your input.

Helge

On Monday 15 March 2004 16:05, Martin Schulze wrote:
> Martin Schulze wrote:
> > Grant Grundler wrote:
> > > > Well, if you *know* that it's a PS/2 mouse and PS/2 keyboard, you're
> > > > correct.  However, does everybody know that who gets hold of a PARISC
> > > > machine fully equipped with HIL hub and stuff?  Maybe it's just me
> > > > who hasn't expected that since the old (really old) machines didn't
> > > > use pc standard equipment and since PA machines usually use different
> > > > parts.  You choose since you're more familiar with the port.
> > > 
> > > Well, maybe it would be better to make this a FAQ on the parisc-linux
> > > web site?
> > 
> > Aye!
> 
> Maybe this one is better since CONFIG_KEYBOARD_HIL and CONFIG_HIL_MLC
> aren't required.  I'm not sure about the mouse part since mine doesn't
> yet work again.
> 
> --- /tmp/work/faq.html.orig	2004-03-15 09:36:25.000000000 +0100
> +++ /tmp/work/faq.html	2004-03-15 10:44:59.000000000 +0100
> @@ -8,6 +8,27 @@
>    <li>First of all, your kernel has to be 2.4.18-pa45 or higher.<br>
>        Earlier kernel versions will not work !
>    </li>
> +
> +  <li>In the latest 2.6 kernel series, we switched from a PA-RISC-only
> +      PS/2 mouse/keyboard driver to the standard Linux kernel PS/2
> +      mouse and keyboard drivers.  Hence, in order to get your PS/2
> +      mouse/keyboard connected via HIL work you'll have to enable
> +      <ul>
> +      <li> CONFIG_KEYBOARD_ATKBD
> +      <li> CONFIG_MOUSE_PS2
> +      </ul>
> +      in addition to
> +      <ul>
> +      <li> CONFIG_INPUT_KEYBOARD
> +      <li> CONFIG_INPUT_MOUSE
> +      <li> CONFIG_MOUSE_HIL
> +      </ul>
> +      You don't need these options anymore:
> +      <ul>
> +      <li> CONFIG_KEYBOARD_HIL
> +      <li> CONFIG_HIL_MLC
> +      </ul>
> +  </li>
>    <li>On the bash prompt enter as root the following comand:<br>
>        <code>cd /dev && ./MAKEDEV input</code><br>
>        This command creates the standard input device nodes in the /dev/input/
> 
> 
> Regards,
> 
> 	Joey
> 
> -- 
> Whenever you meet yourself you're in a time loop or in front of a mirror.
> 
> Please always Cc to me when replying to me on the lists.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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> + 10. PA-RISC
> + ~~~~~~~~~~~
> +	PA7000/PA7100
> +	PA7100LC/PA7300LC	(used in 712, 715/Mirage, A180, B132, C160L)
> +	PA7200			(PCX-T' processor used in C110, D100 ...)
> +	PA8000			(PCX-U to PCX-W2 processors)
> +
> +  (see Documentation/parisc)
> +  <http://www.parisc-linux.org>
>

I'd refer you to www.openpa.net, from which the list below was
shamelessly nicked:

PA-7000         (PCX-S)
PA-7100/PA-7150 (PCX-T)
PA-7100LC       (PCX-L)
PA-7200         (PCX-T')
PA-7300LC       (PCX-L2)

PA-8000         (PCX-U)
PA-8200         (PCX-U+)
PA-8500         (PCX-W)
PA-8600         (PCX-W+)
PA-8700         (PCX-W2)

There are also lists of which models have which CPU, but there's not
much point duplicating that here.

http://www.pateam.org/list.html will give you an idea of what works
and what doesn't.

-Andy


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Hello Carlos,

Sorry for delay,...
>> 
>> On Mon, Mar 15, 2004 at 06:38:46PM +0100, Joel Soete wrote:
>> Hello Jim,
>> 
>> Sorry for confusion but you have definitely right.
>> 
>> [snip]use prefix=/usr and make  install_root=/mnt/chroot install;
>> 
>> This is the right method because if I use prefix=/mnt/chroot and 'make
install',
>> when the install was finished and I tried chroot/mnt/chroot: here was
the
>> error message:
>> chroot /mnt/chroot
>> /bin/bash: error while loading shared libraries: libncurses.so.5: cannot
>> open shared object file: No such file or directory
>> 
>> and strace shows me that it looking for libncurses.so.5 into /mnt/chroot/lib
>> :)
>> 
>> So to launch make -k check in this config, I foreseen to use prefix=/usr
>> and make install_root=/mnt/chroot; then mount -o bind /GlibcSrcFS /mnt/chroot/GlibcSrcFS;
>> chroot /mnt/chroot; and in this env launch the make -k check. Do you know
>> another solution?
>
>That sounds like a perfect solution! :)

but that way I only get know errors ie:
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-float.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-double.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-ifloat.out] Error
1
make[1]: *** [math/tests] Error 2
make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/tst-strtod.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/bug-strtod.out] Error
1
make[1]: *** [stdlib/tests] Error 2
make[2]: [/Develop/parisc-linux/build/glibc/posix/annexc.out] Error 1 (ignored)
make[2]: *** [/Develop/parisc-linux/build/glibc/elf/tst-tls13.out] Error
1
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

(sorry I forget TIMEOUTFACTOR) :)

Very nice job Carlos.

Just still have to check more X,

Joel


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"Joel Soete" <soete.joel@tiscali.be> writes:

> > Are you running make check after make install?
> >
> Yes, but as mentioned in the original build env and not in the chrooted env
> as it seems I would had to do.
> 
> hth,
>     Joel

 Humm, this seems backwards to me.  I wonder if make install mangles some
variables to look at the newly installed versions of ld.so, etc.  Anyway,
I'll be quiet for a while since I don't have a build on hand to check stuff
out.

Jim


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Hello Max,
> 
> Hi,
>
>I was using a linux-2.6.4-pa2 (CVS, up to and including the following patch:
>http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2004-March/033902.html)
>which was working fine.
>
>However the later/latest CVS changes obviously broke sym2 SCSI:
>It doesn't detect any of the two internal 9 GB LVD-SCSI of my C3k.
>

The same for me on b180 OTC 2.6.4-pa1 runing fine...

Do you got some news?

Thanks,
    Joel



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Subject: Re: [parisc-linux] SCSI broken in latest CVS changes
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On Tue, Mar 16, 2004 at 05:17:01PM +0100, Joel Soete wrote:
> Hello Max,
> >It doesn't detect any of the two internal 9 GB LVD-SCSI of my C3k.
> 
> The same for me on b180 OTC 2.6.4-pa1 runing fine...
> 
> Do you got some news?

I got my c3k going and experienced the same problem.  I've backed out
the last two patches (Christoph's one to remove the queueing and the
dev_printk one) and it now works fine.  I've also imported 2.6.5-rc1,
so 2.6.5-rc1-pa0 should be happy happy on a c3k now.  Shout if it's not.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Tue, 16 Mar 2004, Matthew Wilcox wrote:

> On Tue, Mar 16, 2004 at 05:17:01PM +0100, Joel Soete wrote:
> > Hello Max,
> > >It doesn't detect any of the two internal 9 GB LVD-SCSI of my C3k.
> >
> > The same for me on b180 OTC 2.6.4-pa1 runing fine...
> >
> > Do you got some news?
>
> I got my c3k going and experienced the same problem.  I've backed out
> the last two patches (Christoph's one to remove the queueing and the
> dev_printk one) and it now works fine.  I've also imported 2.6.5-rc1,
> so 2.6.5-rc1-pa0 should be happy happy on a c3k now.  Shout if it's not.

Mhh, doesn't work for me with the latest CVS:


=== snip

  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
drivers/built-in.o(.text.__sync_scsi_data_for_device+0x14): In function `__sync_scsi_data_for_device':
: undefined reference to `scsi_to_pci_dma_dir'
make: *** [.tmp_vmlinux1] Error 1
root@beast:/usr/src/linux#


====


Same config as 2.6.4-rc3-pa1 and 2.6.4-pa2 (before the SCSI changes),
which work fine.

BTW, I did a "make clean" before the make. Did you miss to revert a patch?


Greetings,
  Max


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> Mhh, doesn't work for me with the latest CVS:

should link now, whether it works or not is another thing ;-)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] 	RE: New glibc patches 2004-03-08,
	fixes GLRO changes.
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> but that way I only get know errors ie:
> make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-float.out] Error
> make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-double.out] Error
> make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-ifloat.out] Error
> make[1]: *** [math/tests] Error 2
> make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/tst-strtod.out] Error
> make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/bug-strtod.out] Error
> make[1]: *** [stdlib/tests] Error 2
> make[2]: [/Develop/parisc-linux/build/glibc/posix/annexc.out] Error 1 (ignored)
> make[2]: *** [/Develop/parisc-linux/build/glibc/elf/tst-tls13.out] Error
> make[1]: *** [elf/tests] Error 2
> make: *** [check] Error 2
> 
> (sorry I forget TIMEOUTFACTOR) :)

:) No problem!
 
> Very nice job Carlos.
> Just still have to check more X,

No, thank you Joel, your testing and bravery is an enourmous help :)

c.



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On Tue, 16 Mar 2004, Randolph Chung wrote:

> > Mhh, doesn't work for me with the latest CVS:
>
> should link now, whether it works or not is another thing ;-)

Yes, 2.6.5-rc1-pa1 works fine for me!

Thanks alot,
  Max



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Hello Carlos,
 
>> Very nice job Carlos.
>> Just still have to check more X,

I now boot on the (previously /mnt/chroot) disk with new glibc (to be accurate
cvs 2004 03 15 + your patch + my feupdateenv) with kernel 2.6.4-pa1 first.

I try to rebuild 2.6.4-pa2 as well as 2.6.5-rc1-pa0 (but small pb) and so
rebuild 2.6.4-pa1 to add kbd and mouse support: rebuild ok, reboot ok.

I also relaunch Xfce4 and do some test with its file manager, its configuration
interface and xterm, all seems to works fine (well at least, i don't log
any error and any critical trouble in its usage ;)).

>No, thank you Joel, your testing and bravery is an enourmous help :)

Welcome (if you foreseen some additional test don't hesitate), thanks for
your trust and support.

Joel


----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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From - Thu Nov 08 21:31:19 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SCSI broken in latest CVS changes
Date: Wed, 17 Mar 2004 12:39:38 +0100
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Cc: Matthew Wilcox <willy@debian.org>, parisc-linux@lists.parisc-linux.org
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Hello,

> Yes, 2.6.5-rc1-pa1 works fine for me!

Not so lucky to even build it with b180 config :(.

It failled with message:
[snip]
  gcc -Wp,-MD,arch/parisc/kernel/.pci-dma.o.d -nostdinc -iwithprefix include
-D__KERNEL__ -Iinclude  -D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes
-Wno-trigraphs -fno-strict-aliasing -fno-common -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=1.1 -mschedule=7200 -O2     -DKBUILD_BASENAME=pci_dma
-DKBUILD_MODNAME=pci_dma -c -o arch/parisc/kernel/pci-dma.o arch/parisc/kernel/pci-dma.c
arch/parisc/kernel/pci-dma.c:542: error: unknown field `dma_sync_single_cpu'
specified in initializer
arch/parisc/kernel/pci-dma.c:542: error: `pa11_dma_sync_single_cpu' undeclared
here (not in a function)
arch/parisc/kernel/pci-dma.c:542: error: initializer element is not constant
arch/parisc/kernel/pci-dma.c:542: error: (near initialization for `pcx_dma_ops.dma_sync_single_for_cpu')
arch/parisc/kernel/pci-dma.c:543: error: unknown field `dma_sync_single_device'
specified in initializer
arch/parisc/kernel/pci-dma.c:543: error: `pa11_dma_sync_single_device' undeclared
here (not in a function)
arch/parisc/kernel/pci-dma.c:543: error: initializer element is not constant
arch/parisc/kernel/pci-dma.c:543: error: (near initialization for `pcx_dma_ops.dma_sync_single_for_device')
arch/parisc/kernel/pci-dma.c:544: error: unknown field `dma_sync_sg_cpu'
specified in initializer
arch/parisc/kernel/pci-dma.c:544: error: `pa11_dma_sync_sg_cpu' undeclared
here (not in a function)
arch/parisc/kernel/pci-dma.c:544: error: initializer element is not constant
arch/parisc/kernel/pci-dma.c:544: error: (near initialization for `pcx_dma_ops.dma_sync_sg_for_cpu')
arch/parisc/kernel/pci-dma.c:545: error: unknown field `dma_sync_sg_device'
specified in initializer
arch/parisc/kernel/pci-dma.c:545: error: `pa11_dma_sync_sg_device' undeclared
here (not in a function)
arch/parisc/kernel/pci-dma.c:545: error: initializer element is not constant
arch/parisc/kernel/pci-dma.c:545: error: (near initialization for `pcx_dma_ops.dma_sync_sg_for_device')
make[1]: *** [arch/parisc/kernel/pci-dma.o] Error 1
make: *** [arch/parisc/kernel] Error 2


for which the following trivial patch help to build (at least):
--- linux-2.6.5-rc1-pa1/arch/parisc/kernel/pci-dma.c.orig	2004-03-17 13:06:21.123088000
+0100
+++ linux-2.6.5-rc1-pa1/arch/parisc/kernel/pci-dma.c	2004-03-17 13:14:17.063088000
+0100
@@ -539,10 +539,10 @@
 	.unmap_single =		pa11_dma_unmap_single,
 	.map_sg =		pa11_dma_map_sg,
 	.unmap_sg =		pa11_dma_unmap_sg,
-	.dma_sync_single_cpu =	pa11_dma_sync_single_cpu,
-	.dma_sync_single_device = pa11_dma_sync_single_device,
-	.dma_sync_sg_cpu =	pa11_dma_sync_sg_cpu,
-	.dma_sync_sg_device =	pa11_dma_sync_sg_device,
+	.dma_sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
+	.dma_sync_single_for_device =	pa11_dma_sync_single_for_device,
+	.dma_sync_sg_for_cpu =		pa11_dma_sync_sg_for_cpu,
+	.dma_sync_sg_for_device =	pa11_dma_sync_sg_for_device,
 };
==========><==========

hth,
    joel

PS: I also attched the patch as know pb with webmail interface 

----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr




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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] SCSI broken in latest CVS changes
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On Wed, Mar 17, 2004 at 12:39:38PM +0100, Joel Soete wrote:
> for which the following trivial patch help to build (at least):

Applied, thanks

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] SCSI broken in latest CVS changes
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Matthew,
>> 
>> On Wed, Mar 17, 2004 at 12:39:38PM +0100, Joel Soete wrote:
>> for which the following trivial patch help to build (at least):
>
>Applied, thanks

It boot fine :)

Thanks a lot,
   joel


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Subject: Re: [parisc-linux] SCSI broken in latest CVS changes
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oops my very bad, I just figure out that I also include the following patch
from upstream (which seems to be missed but may be there was a good reason?):
diff -Nru a/include/asm-parisc/dma-mapping.h b/include/asm-parisc/dma-mapping.h
--- a/include/asm-parisc/dma-mapping.h	Mon Mar 15 21:48:01 2004
+++ b/include/asm-parisc/dma-mapping.h	Mon Mar 15 21:48:01 2004
@@ -15,8 +15,10 @@
 	void (*unmap_single)(struct device *dev, dma_addr_t iova, size_t size,
enum dma_data_direction direction);
 	int  (*map_sg)(struct device *dev, struct scatterlist *sg, int nents, enum
dma_data_direction direction);
 	void (*unmap_sg)(struct device *dev, struct scatterlist *sg, int nhwents,
enum dma_data_direction direction);
-	void (*dma_sync_single)(struct device *dev, dma_addr_t iova, unsigned long
offset, size_t size, enum dma_data_direction direction);
-	void (*dma_sync_sg)(struct device *dev, struct scatterlist *sg, int nelems,
enum dma_data_direction direction);
+	void (*dma_sync_single_for_cpu)(struct device *dev, dma_addr_t iova, unsigned
long offset, size_t size, enum dma_data_direction direction);
+	void (*dma_sync_single_for_device)(struct device *dev, dma_addr_t iova,
unsigned long offset, size_t size, enum dma_data_direction direction);
+	void (*dma_sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg,
int nelems, enum dma_data_direction direction);
+	void (*dma_sync_sg_for_device)(struct device *dev, struct scatterlist *sg,
int nelems, enum dma_data_direction direction);
 };
 
 /*
@@ -116,28 +118,53 @@
 
 
 static inline void
-dma_sync_single(struct device *dev, dma_addr_t dma_handle, size_t size,
+dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t
size,
 		enum dma_data_direction direction)
 {
-	if(hppa_dma_ops->dma_sync_single)
-		hppa_dma_ops->dma_sync_single(dev, dma_handle, 0, size, direction);
+	if(hppa_dma_ops->dma_sync_single_for_cpu)
+		hppa_dma_ops->dma_sync_single_for_cpu(dev, dma_handle, 0, size, direction);
 }
 
 static inline void
-dma_sync_single_range(struct device *dev, dma_addr_t dma_handle,
+dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t
size,
+		enum dma_data_direction direction)
+{
+	if(hppa_dma_ops->dma_sync_single_for_device)
+		hppa_dma_ops->dma_sync_single_for_device(dev, dma_handle, 0, size, direction);
+}
+
+static inline void
+dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
+		      unsigned long offset, size_t size,
+		      enum dma_data_direction direction)
+{
+	if(hppa_dma_ops->dma_sync_single_for_cpu)
+		hppa_dma_ops->dma_sync_single_for_cpu(dev, dma_handle, offset, size, direction);
+}
+
+static inline void
+dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
 		      unsigned long offset, size_t size,
 		      enum dma_data_direction direction)
 {
-	if(hppa_dma_ops->dma_sync_single)
-		hppa_dma_ops->dma_sync_single(dev, dma_handle, offset, size, direction);
+	if(hppa_dma_ops->dma_sync_single_for_device)
+		hppa_dma_ops->dma_sync_single_for_device(dev, dma_handle, offset, size,
direction);
+}
+
+static inline void
+dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
+		 enum dma_data_direction direction)
+{
+	if(hppa_dma_ops->dma_sync_sg_for_cpu)
+		hppa_dma_ops->dma_sync_sg_for_cpu(dev, sg, nelems, direction);
 }
 
 static inline void
-dma_sync_sg(struct device *dev, struct scatterlist *sg, int nelems,
+dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
 		 enum dma_data_direction direction)
 {
-	if(hppa_dma_ops->dma_sync_sg)
-		hppa_dma_ops->dma_sync_sg(dev, sg, nelems, direction);
+	if(hppa_dma_ops->dma_sync_sg_for_device)
+		hppa_dma_ops->dma_sync_sg_for_device(dev, sg, nelems, direction);
 }
 
 static inline int
@@ -166,14 +193,14 @@
 static inline int
 dma_is_consistent(dma_addr_t dma_addr)
 {
-	return (hppa_dma_ops->dma_sync_single == NULL);
+	return (hppa_dma_ops->dma_sync_single_for_cpu == NULL);
 }
 
 static inline void
 dma_cache_sync(void *vaddr, size_t size,
 	       enum dma_data_direction direction)
 {
-	if(hppa_dma_ops->dma_sync_single)
+	if(hppa_dma_ops->dma_sync_single_for_cpu)
 		flush_kernel_dcache_range((unsigned long)vaddr, size);
 }
========><========

Sorry,
    joel

ps: see attachement if bad wrapping of my webmail

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Oops again, it seems that I smook too much???

Sorry for inconvenience,
    joel


----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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On Wed, 17 Mar 2004, Joel Soete wrote:

> Oops again, it seems that I smook too much???

Usually it doesn't matter how much you smoke, but *what* you smoke!

Happy St. Patrick's Day!
  Max


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From: Jesse Dougherty <jesse@cypress-tech.com>
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Subject: [parisc-linux] HP A3312A High Availability Jamaica storage arrays
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I still have several of these arrays (free) if anyone want some.

We are moving locations and need to clean out some hardware in our
warehouse. We have about 40 of these A3312A rack-mount " High
Availability Jamaica arrays taking up space and we really don't want to
trash them. If anyone wants any, we are giving them away, I only ask
that you pay for
shipping out of Tampa (33762). They are good storage arrays that work in
MPE/iX, HP-UX, & Windows/NT environment, we have the racking hardware
and both fans and power supplies are included. They take either FWD or
SE drives and the capacity is 8 low profile drives. If your interested
in getting one of these arrays or if you want some additional
specifications
of the A3312A sent to you, feel free to contact me.

Thanks
Jesse
Cypress Technology Inc
Re-Sellers of HP hardware
Jesse@cypress-tech.com




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Hi,

How much would be the shipping to Belgium for one or two bay ?

Thanks in advance


On Wed, 17 Mar 2004 13:02:00 -0500
Jesse Dougherty <jesse@cypress-tech.com> wrote:

> I still have several of these arrays (free) if anyone want some.
> 
> We are moving locations and need to clean out some hardware in our
> warehouse. We have about 40 of these A3312A rack-mount " High
> Availability Jamaica arrays taking up space and we really don't want
> to trash them. If anyone wants any, we are giving them away, I only
> ask that you pay for
> shipping out of Tampa (33762). They are good storage arrays that work
> in MPE/iX, HP-UX, & Windows/NT environment, we have the racking
> hardware and both fans and power supplies are included. They take
> either FWD or SE drives and the capacity is 8 low profile drives. If
> your interested in getting one of these arrays or if you want some
> additional specifications
> of the A3312A sent to you, feel free to contact me.
> 
> Thanks
> Jesse
> Cypress Technology Inc
> Re-Sellers of HP hardware
> Jesse@cypress-tech.com
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


-- 
Guy Martin
Gentoo Linux - HPPA port Lead / IPv6 team
Lug Charleroi (Belgium)

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From - Thu Nov 08 21:31:20 2018
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X-Mozilla-Keys:                                                                                 
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From: Martin Schulze <joey@infodrom.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
Date: Thu, 18 Mar 2004 10:55:06 +0100
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To: Helge Deller <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:21124

Helge Deller wrote:
> On Monday 15 March 2004 18:14, Martin Schulze wrote:
> > > Furthermore you might try to increase the value of mdelay(6); in line 168
> > > in file linux-2.6/drivers/input/serio/gscps2.c...
> > > Maybe it's a timing issue ?
> > 
> > Apparently, it was.  I now have keyboard and mouse support.
> > I set the delay to 12.
> 
> Did you tried any other values between 6 and 12 ?
> If a lower value works for you, I would like to put this one in the source....

mdelay(8) contains the lowest value with which the mouse starts to work.

In order to have proper/normal responses you'd have to increase the
responsiveness with gpm, though, but with X the mouse curser runs fast
as usual.

Regards,

	Joey

-- 
The MS-DOS filesystem is nice for removable media.  -- H. Peter Anvin


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From: "Andy Walker" <ajwalker@broadpark.no>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: No PS2 keyboard/mouse on B132L, 2.6.[34]
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> ----- Original Message -----
> From: "Helge Deller" <deller@gmx.de>
>> > > Maybe it's a timing issue ?
>> >
>> > Apparently, it was.  I now have keyboard and mouse support.
>> > I set the delay to 12.
>> Did you tried any other values between 6 and 12 ?
>> If a lower value works for you, I would like to put this one in the
> source....
>
> Helge,
>
> I'll try playing with the delay on the B132L as well and report back.
Time to compile....
>
> -Andy


I realized just after sending that mail that the delay was a wild goose
chase in my case. What I really needed to test was unplugging the KVM and
hooking up a mouse directly. Done that now, with a Logitech
MouseMan and my Labtec wireless roller mouse. Both of these get detected
okay.

I added a few debug statements in atkbd_probe() and found that the
combination of the GSC ps/2 and the KVM fail ATKBD_CMD_GETID on the mouse
port. The default action in this case is to call
ATKBD_CMD_SETLEDS - seems a bit haphazard and not something you'd
want to be doing to a mouse (or a KVM emulating a mouse). The SETLEDS
command fails in gscps2.c with a timeout (timeout writing byte 0xed which
is the second byte of 0x10ed == SETLEDS).

At this point I believe the GSC ps/2 port is stuck, so the subsequent
mouse probe fails too (need more debug statements to prove this - later).

On a PC running 2.6.3 all this just seems to work, even with the KVM.
ATKBD_CMD_GETID succeeds and tells the system that this isn't a
keyboard, and everything proceeds normally. So the problem seems to be
something in the interraction between the GSC ps/2 port and the KVM. I'm
not giving up on this yet as I really want to use this
machine with the KVM.

cheers,
-Andy






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------=_NextPart_000_0004_00002356.000047EA--



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From: "Net Spamu" <ktototam1@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] K210: SCSI reset problem
Date: Thu, 18 Mar 2004 10:37:32 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:21127

Hi,

I already posted this problem about hanging after SCSI timeouts.

I see the following on my console.

SCSI host 1 abort (pid 1207191) timed out - resetting
SCSI bus is being reset for host 1 channel 0.
ncr53c8xx_reset: pid=1207191 reset_flags=2 serial_number=1207192 
serial_number_at_timeout=1207192
SCSI host 1 abort (pid 1207201) timed out - resetting
SCSI bus is being reset for host 1 channel 0.

http://lists.parisc-linux.org/pipermail/parisc-linux/2003-September/021085.html

I run K210 under linux-2.4.23-pa5. The problem appears on different scsi 
controllers, so I hope there are neither controller nor disk problems. This 
are current drivers from /var/log/messages.


kernel: loop: loaded (max 8 devices)
kernel: Found i82596 at 0xffd07000, IRQ 87
kernel: eth0: 82596 at 0xffd07000, 08 00 09 DA 44 88 IRQ 87.
kernel: 82596.c $Revision: 1.32 $
kernel: SCSI subsystem driver Revision: 1.00
kernel: zalon_scsi_callback: Zalon vers field is 0x1, IRQ 35
kernel: ncr53c8xx: 53c720 detected
kernel: ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
kernel: zalon_scsi_callback: Zalon vers field is 0x1, IRQ 36
kernel: ncr53c8xx: 53c720 detected
kernel: ncr53c720-1: ID 7, Fast-10, Parity Checking, Differential
kernel: scsi0 : ncr53c8xx-3.4.3b-20010512
kernel: scsi1 : ncr53c8xx-3.4.3b-20010512

Can it be a bad driver problem? I use Linux Software RAID, is it possible to 
tune some parameters there?

Many thanks in advance for any help!

BR,
Dub

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------------qSnSjeufJLuePGDq--



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] 	RE: New glibc patches 2004-03-08,
	fixes GLRO changes.
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Xref: news.gmane.org gmane.linux.ports.parisc:21129

On Wed, Mar 17, 2004 at 09:30:59AM +0100, Joel Soete wrote:
> I now boot on the (previously /mnt/chroot) disk with new glibc (to be accurate
> cvs 2004 03 15 + your patch + my feupdateenv) with kernel 2.6.4-pa1 first.
> 
> I try to rebuild 2.6.4-pa2 as well as 2.6.5-rc1-pa0 (but small pb) and so
> rebuild 2.6.4-pa1 to add kbd and mouse support: rebuild ok, reboot ok.
> 
> I also relaunch Xfce4 and do some test with its file manager, its configuration
> interface and xterm, all seems to works fine (well at least, i don't log
> any error and any critical trouble in its usage ;)).
> 
> >No, thank you Joel, your testing and bravery is an enourmous help :)
> 
> Welcome (if you foreseen some additional test don't hesitate), thanks for
> your trust and support.

Excellent!

c.


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From: Adam Parrish <waparris@ncsu.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Common Console Problem booting HP C3000 From CD-Rom
Date: 18 Mar 2004 16:01:44 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:21130

Good Day,

I am attempting to load Debian on a good many of our C3000 Visualize
workstation per user request. Unfortunately I am stumbling upon a
"Common Error" while booting. 

When booting without altering any of the boot options from the pdl I get
a High Priority Machine Check error:

(HPMC): Code=1 regs=102F3080 (ADDR = 00000000) 

When using the 64 bit version by editing line 0 to have vmlinuz64 on it
so that it boots the 64 bit kernel I get the error that I need to switch
the console. 

I have tried multiple consoles but am unable to get it to show me the
linux interactive boot screen. The LCD on the front of my computer leads
me to believe that the kernel booted though since it says Linux 2.4.17. 

I have skimmed the Mailing List and I apologize if this is a repeat,
although none of the messages I read reflected my problem or the
solution. 

Any help or suggestion in debugging this problem would be greatly
appreciated. 

Thanks and Regards,
-- 
Adam Parrish
Asst. Linux Administrator
ECE Dept, North Carolina State University



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From: Marnix van den Berg <marnix.vd.berg@hccnet.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Common Console Problem booting HP C3000 From CD-Rom
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Xref: news.gmane.org gmane.linux.ports.parisc:21131

Hello,

Have you tried booting the standard 32 bit kernel? There isn't really a
reason to use the 64 bit kernel unless of course you're one of those
lucky people with more than 4gb of memory  I myself have a C3000 and
Debian installed on it without a problem. I can't use the framebuffer
since it's a FX4. I take it you'll be using the serial console? Or did
you fit them all with Vis-EG cards?

Regards,

Marnix van den Berg

Adam Parrish wrote:

> Good Day,
> 
> I am attempting to load Debian on a good many of our C3000 Visualize
> workstation per user request. Unfortunately I am stumbling upon a
> "Common Error" while booting. 
> 
> When booting without altering any of the boot options from the pdl I get
> a High Priority Machine Check error:
> 
> (HPMC): Code=1 regs=102F3080 (ADDR = 00000000) 
> 
> When using the 64 bit version by editing line 0 to have vmlinuz64 on it
> so that it boots the 64 bit kernel I get the error that I need to switch
> the console. 
> 
> I have tried multiple consoles but am unable to get it to show me the
> linux interactive boot screen. The LCD on the front of my computer leads
> me to believe that the kernel booted though since it says Linux 2.4.17. 
> 
> I have skimmed the Mailing List and I apologize if this is a repeat,
> although none of the messages I read reflected my problem or the
> solution. 
> 
> Any help or suggestion in debugging this problem would be greatly
> appreciated. 
> 
> Thanks and Regards,



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From: Marnix van den Berg <marnix.vd.berg@hccnet.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Common Console Problem booting HP C3000 From	CD-Rom
Date: Thu, 18 Mar 2004 23:32:27 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:21132

Adam,

If you've got no keyboard connected it should switch to serial console 
automatically and afaik it's just a normal 9600 8N1 line. I had it 
hooked up to my PC without problem (admittedly using Windows 
HyperTerminal, shame on me). You might check if someone has changed the 
serial line settings.

Frankly, I'm a bit puzzled you're having trouble booting. The stock 
kernel from CD's worked without a hitch for me. Have you got any 
non-standard hardware in it? Extra Scsi stuff, network cards, etc..?

Regards

Adam Parrish wrote:

> Marnix,
> 
> I assume that installing over the serial console is the best way since I
> have no special hardware for them. I have a null modem cable connected
> to my laptop with minicom right now and I am trying to get it to
> initialize that terminal now. 
> 
> The 32 bit kernel barfs on me when it boots with the HPMC error. Is
> there anything special I have to set my Console line to in the PALO
> bootloader to use the serial connection, or in the Configuration utility
> before I boot?
> 
> Cheers,
> Adam
> 
> On Thu, 2004-03-18 at 17:16, Marnix van den Berg wrote:
> 
>>Hello,
>>
>>Have you tried booting the standard 32 bit kernel? There isn't really a
>>reason to use the 64 bit kernel unless of course you're one of those
>>lucky people with more than 4gb of memory  I myself have a C3000 and
>>Debian installed on it without a problem. I can't use the framebuffer
>>since it's a FX4. I take it you'll be using the serial console? Or did
>>you fit them all with Vis-EG cards?
>>
>>Regards,
>>
>>Marnix van den Berg
>>
>>Adam Parrish wrote:
>>
>>
>>>Good Day,
>>>
>>>I am attempting to load Debian on a good many of our C3000 Visualize
>>>workstation per user request. Unfortunately I am stumbling upon a
>>>"Common Error" while booting. 
>>>
>>>When booting without altering any of the boot options from the pdl I get
>>>a High Priority Machine Check error:
>>>
>>>(HPMC): Code=1 regs=102F3080 (ADDR = 00000000) 
>>>
>>>When using the 64 bit version by editing line 0 to have vmlinuz64 on it
>>>so that it boots the 64 bit kernel I get the error that I need to switch
>>>the console. 
>>>
>>>I have tried multiple consoles but am unable to get it to show me the
>>>linux interactive boot screen. The LCD on the front of my computer leads
>>>me to believe that the kernel booted though since it says Linux 2.4.17. 
>>>
>>>I have skimmed the Mailing List and I apologize if this is a repeat,
>>>although none of the messages I read reflected my problem or the
>>>solution. 
>>>
>>>Any help or suggestion in debugging this problem would be greatly
>>>appreciated. 
>>>
>>>Thanks and Regards,
>>
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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------=_NextPart_000_0002_000078CD.0000722D--



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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Spinlock patch, take 2
Date: Fri, 19 Mar 2004 15:30:43 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:21134


> 
> Here's another version of my spinlock patch against 2.6.4. It optimizes
>spinlocks used for atomic operations by putting the atomic locks into a
>special section that is guaranteed to be 16-byte aligned, so no runtime
>alignment is needed. Build-tested against 2.6.4. Comments?
>
Ongoing to try to apply it against 2.6.[45] and encounter very early a pb
which seems to be solved by following patch:
--- include/asm-parisc/smp.h.orig	2004-01-28 08:24:41.000000000 +0100
+++ include/asm-parisc/smp.h	2004-03-19 11:34:04.078456992 +0100
@@ -54,7 +54,7 @@
 #define smp_processor_id()	(current_thread_info()->cpu)
 #define cpu_online(cpu) cpu_isset(cpu, cpu_online_map)
 
-#define cpu_possible_map	cpu_present_map
+#define cpu_possible_map	cpu_present_mask
 
 #endif /* CONFIG_SMP */
=========><=========

Is it correct?

But using c3k config and adding smp support to 2.6.5-rc1, I encounter this
ld pb:
  gcc -Wp,-MD,drivers/usb/core/.devices.o.d -nostdinc -iwithprefix include
-D__KERNEL__ -Iinclude  -D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes
-Wno-trigraphs -fno-strict-aliasing -fno-common -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000 -O2 -fomit-frame-pointer
    -DKBUILD_BASENAME=devices -DKBUILD_MODNAME=usbcore -c -o drivers/usb/core/devices.o
drivers/usb/core/devices.c
  ld   -r -o drivers/usb/core/usbcore.o drivers/usb/core/usb.o drivers/usb/core/hub.o
drivers/usb/core/hcd.o drivers/usb/core/urb.o drivers/usb/core/message.o
drivers/usb/core/config.o drivers/usb/core/file.o drivers/usb/core/buffer.o
drivers/usb/core/driverfs.o drivers/usb/core/hcd-pci.o drivers/usb/core/devio.o
drivers/usb/core/inode.o drivers/usb/core/devices.o
Inconsistency detected by ld.so: dynamic-link.h: 164: elf_get_dynamic_info:
Assertion `info[9]->d_un.d_val == sizeof (Elf32_Rela)' failed!
make[3]: *** [drivers/usb/core/usbcore.o] Error 127
make[2]: *** [drivers/usb/core] Error 2

Any idea? (the same kernel 2.6.5-rc1 + same patches but with a500 config
+smp compiles well :) )

Thanks in advance,
   Joel


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: RE: [parisc-linux] Spinlock patch, take 2
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>Ongoing to try to apply it against 2.6.[45] and encounter very early a pb
>which seems to be solved by following patch:
--- include/asm-parisc/smp.h.orig	2004-01-28 08:24:41.000000000 +0100
+++ include/asm-pari
> c/smp.h	2004-03-19 11:34:04.078456992 +0100
@@ -54,7 +54,7 @@
 #define smp_processor_id()	(current_thread_info()->cpu)
 #define cpu_online(cpu) cpu_isset(cpu, cpu_online_map)
 
-#define cpu_possible_map	cpu_present_map
+#define cpu_possible_map	cpu_present_mask
 
 #endif /* CONFIG_SMP */
=========><=========
>
>Is it correct?
>
it seems ok as it even boot on a up b2k with this smp 32bit kernel :)

>But using c3k config and adding smp support to 2.6.5-rc1, I encounter this
>ld pb:
>[snip]
well apologies, though a 'make clean' before build the new kernel is just
requested.

hth,
    Joel


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Thats the answer to all your questions.

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------------uEFUERddNUknNNKd--



From - Thu Nov 08 21:31:21 2018
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X-Mozilla-Keys:                                                                                 
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From: ANTIGEN_MSGATE-A <ANTIGEN_MSGATE-A@orange.dk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Antigen found VIRUS= Hiton. (Norman, NAI,
	CA(InoculateIT)) virus
Date: Sat, 20 Mar 2004 06:16:33 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:21137

Antigen for Exchange found misc.folder infected with VIRUS= Hiton.
(Norman,NAI,CA(InoculateIT)) virus.
The file is currently Removed.  The message, "[parisc-linux] hi
parisc-linux", was
sent from parisc-linux-bounces@lists.parisc-linux.org and was discovered in
IMC Queues\Inbound
located at Mobilix AS/IMC_GATE_A/MSGATE-A.
Confidentiality. This communication is intended for the above-named person
and may be confidential and/or legally privileged. Any opinions expressed in
this communication are not necessarily those of the company. If it has come
to you in error you must take no action based on it, nor must you copy or
show it to anyone; please delete/destroy and inform the sender immediately.


From - Thu Nov 08 21:31:21 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [parisc-linux] Re: [DOC] Linux
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Xref: news.gmane.org gmane.linux.ports.parisc:21139

Thanks a lot for your answers. Seems that PA-RISC linux community are quit=
e reactive :-)

Some people ask me about the complete file, it's not on Internet yet so I =
first post it here. There is probably a lot of modifications to do but it'=
s a good start.

Regards,

Jerome Pinot


diff -Nru a/Documentation/Arch b/Documentation/Arch
--- a/Documentation/Arch	1970-01-01 09:00:00.000000000 +0900
+++ b/Documentation/Arch	2004-03-17 14:14:11.000000000 +0900
=40=40 -0,0 +1,444 =40=40
+
+March 2004		Supported architectures for Linux	v2.6.4
+			=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=
=7E=7E=7E=7E=7E=7E=7E=7E=7E
+
+
+The following is a quite complete list of all the architectures supported
+by Linux. Of course, you will find here Alpha, ARM, ARM26, CRIS, H8300,
+i386, IA-64, M68000, MIPS, PA-RISC, PPC, S/390, SuperH, SPARC, v850 and
+x86-64. But you will find too a complete list of CPUs and board supported
+by the kernel. For each part, first list means =22board=22 and second one
+means =22CPU=22.
+
+
+ Content:
+ =7E=7E=7E=7E=7E=7E=7E=7E
+	1. i386		7. IA-64		13. S/390 (32/64)
+	2. Alpha	8. M68K			14. SuperH
+	3. ARM		9. MIPS (32/64, LE/BE)	15. SPARC
+	4. ARM26	10. PA-RISC (32/64)	16. UltraSPARC
+	5. CRIS		11. PPC			17. v850
+	6. H8300	12. PPC64		18. x86-64
+	=

+  =

+
+ 1. i386
+ =7E=7E=7E=7E=7E=7E=7E
+	AMD Elan
+	NUMAQ (IBM/Sequent)
+	PC-compatible	(generic)
+	SGI 320/540 (Visual Workstation)
+	Summit/EXA (IBM x440)
+	Unisys ES7000 IA32
+	Voyager (NCR)
+	generic SMP
+	generic SMP with more than 8 CPUs
+		=

+		AMD 386DX/DXL/SL/SLC/SX
+		AMD 486DX/DX2/DX4/SL/SLC/SLC2/SLC3/SX/SX2
+		AMD Elan
+		AMD K5
+		AMD K6/K6-II/K6-III
+		AMD K7/Athlon/Duron/Thunderbird
+		AMD K8/Athlon64/Hammer/Opteron
+		Cyrix 386DX/DXL/SL/SLC/SX
+		Cyrix 486DLC/DLC2/DX/DX2/DX4/SL/SLC/SLC2/SLC3/SX/SX2
+		Cyrix III
+		IBM 486DX/DX2/DX4/SL/SLC/SLC2/SLC3/SX/SX2
+		IDT Winchip
+		IDT Winchip 2
+		IDT Winchip 2A/3
+		Intel 386DX/DXL/SL/SLC/SX
+		Intel 486DX/DX2/DX4/SL/SLC/SLC2/SLC3/SX/SX2
+		Intel Celeron (Coppermine)
+		Intel Celeron (P4-based)
+		Intel Celeron (pre-Coppermine)
+		Intel Pentium
+		Intel Pentium (without TSC)
+		Intel Pentium 4/4 M/4 Xeon
+		Intel Pentium II
+		Intel Pentium III/III Xeon
+		Intel Pentium M
+		Intel Pentium MMX =

+		Intel Pentium Pro
+		NexGen Nx586
+		TI 486DLC/DLC2
+		Transmeta Crusoe
+		UMC 486SX-S
+		UMC U5D/U5S
+		VIA C3
+		VIA C3-2 (Nehemia)
+		generic x86
+
+  (see Documentation/i386)
+
+ 2. Alpha
+ =7E=7E=7E=7E=7E=7E=7E=7E
+	Alcor/Alpha-XLT	(AS 600)
+	Alpha-XL	(XL-233, XL-266)
+	AlphaBook1	(Alpha laptop)
+	Avanti		(AS 200, AS 205, AS 250, AS 255, AS 300, AS 400)
+	Cabriolet	(AlphaPC64, AlphaPCI64)
+	DP264		(DP264)
+	EB164		(EB164 21164 evaluation board)
+	EB64+		(EB64+ 21064 evaluation board)
+	EB66		(EB66 21066 evaluation board)
+	EB66+		(EB66+ 21066 evaluation board)
+	Eiger		(OEM, Typhoon/Tsunami chipset)
+	Jensen		(DECpc 150, DEC 2000 model 300, DEC 2000 model 500)
+	LX164		(AlphaPC164-LX)
+	Lynx		(AS 2100A)
+	Marvel		(AlphaServer ES47/ES80/GS1280)
+	Miata		(Personal Workstation 433a/au, 500a/au, 600a/au)
+	Mikasa		(AS 1000)
+	Nautilus	(AMD 751 & ALI 1543C chipset)
+	Noritake	(AS 1000A, AS 600A, AS 800)
+	PC164		(AlphaPC164)
+	Platform2000	=

+	Rawhide		(AS 1200, AS 4000, AS 4100)
+	Ruffian		(RPX164-2, AlphaPC164-UX, AlphaPC164-BX)
+	RX164		=

+	SX164		(AlphaPC164-SX)
+	Sable		(AS 2000, AS 2100)
+	Shark		(DS 20L)
+	Takara		(Takara)
+	Titan		(AlphaServer ES45/DS25)
+	Wildfire	(AlphaServer GS 40/80/160/320)
+	generic
+   =

+  <http://www.alphalinux.org>
+
+ 3. ARM
+ =7E=7E=7E=7E=7E=7E
+	ADIFCC-based
+	Anakin			(StrongARM based SA110)
+	CLPS711x/EP721x-based
+	Cirrus-CL-PS7500FE
+	Co-EBSA285
+	EBSA-110		(StrongARM from Digital)
+	Epxa10db		(Altera's Excalibur XA10)
+	FootBridge
+	IOP3xx-based
+	Integrator
+	LinkUp-L7200		(ARM720T processor)
+	PXA250/210-based
+	Risc-PC			(Acorn)
+	SA1100-based
+	Shark
+	=

+  (see Documentation/arm)
+  <http://www.arm.linux.org.uk>
+
+ 4. ARM26
+ =7E=7E=7E=7E=7E=7E=7E=7E
+	Acorn A5000		=

+	Acorn Archimedes (ARM2)
+
+ 5. CRIS
+ =7E=7E=7E=7E=7E=7E=7E
+	CRIS V32 (200LX)
+	ETRAX 100LX version 1
+	ETRAX 100LX version 2
+	xsim ETRAX simulator (100LX)
+
+  (see Documentation/cris)
+
+ 6. H8300
+ =7E=7E=7E=7E=7E=7E=7E=7E
+	Flashmicom AE-3068/69		(Evaluation Board)
+ 	Flashmicom AKI-H8/3068F		(LAN Board)
+	Flashmicom AKI-H8/3069F		(LAN Board)
+	H8/300H	Simulator		(GDB Simulator)
+	H8MAX				(Evaluation Board)
+	H8S Simulator			(GDB Simulator)
+	Renesas EDOSK-2674R		(Evaluation Board)
+
+		H8/3001,3002,3003
+		H8/3006,3007
+		H8/3044,3045,3046,3047,3048,3052
+		H8/3065,3066,3067,3068,3069
+		H8S/2670,2673,2674R,2675,2676
+
+  (to use with uClinux)
+
+ 7. IA-64
+ =7E=7E=7E=7E=7E=7E=7E=7E
+	DIG-compliant	(Developer's Interface Guide compliant)
+	HP-zx1/sx1000	(HP systems)
+	SGI-SN2		(SGI Altix systems)
+	Ski-simulator	(HP simulator)
+	=

+		Intel Itanium
+		Intel Itanium 2 (McKinley)
+
+  (see Documentation/ia64)
+  <http://www.linuxia64.org>
+
+ 8. M68k
+ =7E=7E=7E=7E=7E=7E=7E
+	Amiga
+	Apollo		(MC680x0-based, as the DN3500)
+	Atari		(68000-based, including the TT, Falcon and Medusa)
+	BVM Ltd. VME	(680x0 based as BVME4000, BVME6000)
+	HP9000/300
+	Hades		(Hades Atari clone)
+	Macintosh	(Apple Macintosh series)
+ 	Sun 3		(3/50, 3/60, 3/1xx, 3/2xx systems)
+	Sun 3x
+	Motorola VME	(680x0 based as MVME147, MVME162, MVME166, MVME167, =

+				MVME172, and MVME177)
+	Motorola Q40/60	(68040-based)
+	=

+		MC68020
+		MC68030
+		MC68040
+		MC68060
+	no MMU:
+		Motorola MC68EZ328
+		Motorola MC68VZ328
+		Motorola MC68328
+		Motorola MC68360
+		Motorola MCF5206 (ColdFire)
+		Motorola MCF5206e (ColdFire)
+		Motorola MCF5249 (ColdFire)
+		Motorola MCF5272 (ColdFire)
+		Motorola MCF5282 (ColdFire)
+		Motorola MCF5307 (ColdFire)
+		Motorola MCF5407 (ColdFire)
+
+  (see Documentation/m68k)
+	=

+ 9. MIPS (32/64, LE/BE)
+ =7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E
+	ACER PICA
+	AMD/Alchemy Au1x00 	(PB1000/1100/1500)
+	AMD/Alchemy Au1x00 	(DB1000/1100/1500)
+	AMD/Alchemy Au1x00 	(Bosporus, Mirage)
+	AMD/Alchemy Au1x00 	(MyCable XXS1500, 4G Systems MTX-1)
+	Atlas board		(QED R5231-based)
+	Baget series		(Russian embedded system)
+	Broadcom BCM1xxx 	(BCM91250A-SWARM, BCM91250E-Sentosa)
+	Broadcom BCM1xxx 	(BCM91125E-Rhone, BCM91120x-Carmel)
+	Broadcom BCM1xxx 	(BCM91250PT-PTSWARM, BCM91250C2-LittleSur)
+	Broadcom BCM1xxx 	(BCM91120C-CRhine, BCM91125C-CRhone, generic)
+	CASIO CASSIOPEIA E-10/15/55/65
+	Cobalt Server
+	DECstations		(2100, 3100, 5000 family, 5900 family)
+	Galileo EV64120		(Evaluation board, MIPS R5000 compatible)
+	Galileo EV96100		(Evaluation board, MIPS R5000 compatible)
+	Galileo Technology	(GT96100 communications controller card)
+	Globspan IVR		(QED RM5231 R5000 MIPS core)
+	Hewlett Packard		(LaserJet board)
+	IBM WorkPad z50
+	ITE 8172G	=

+	ITE 8172SBC
+	Jazz Family		(R4030 chipset)
+	LASAT Networks platforms
+	Malta board
+	MIPS Magnum 4000
+	MIPS Millenium
+	Momentum Jaguar board
+	Momentum Ocelot board
+	Momentum Ocelot-C board
+	Momentum Ocelot-G board
+	NEC DDB Vrc-5074	(VR5000-based)
+	NEC DDB Vrc-5076	(R5432-based)
+	NEC DDB Vrc-5477	(R5432-based)
+	NEC Eagle/Hawk board
+	NEC Osprey board
+	NEC VR41XX
+	Olivetti M700-10
+	PMC-Sierra Yosemite	(evaluation board)
+	Rockhopper board	(R5432/R5500)
+	SolutionGear board	(R5432/R5500)
+	SEAD board
+	SGI IP22		(Indy/Indigo2)
+	SGI IP27		(Origin200/2000)
+	SGI IP32		(O2)
+	SNI RM200 PCI
+	TANBAC TB0219		(base board)
+	TANBAC TB0226		(Mbase)
+	TANBAC TB0229		(VR4131DIMM)
+	Toshiba JMR-TX3927
+	Victor MP-C303/304
+	ZAO Networks Capcella
+
+		R3000
+		R39XX
+		R41xx
+		R4300
+		R4x00	(including 4000/4400/4600/4700)
+		R49XX
+		R5000
+		R52xx	(Nevada)
+		R6000
+		R6000A
+		RM7000
+		R8000	(incomplete support)
+		R10000
+		RM9000
+		SB1
+		=

+  (see Documentation/mips)
+  <http://www.linux-mips.org/>
+
+ 10. PA-RISC (32/64)
+ =7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E
+	PA-7000         (PCX-S)
+	PA-7100/PA-7150 (PCX-T)
+	PA-7100LC       (PCX-L)
+	PA-7200         (PCX-T')
+	PA-7300LC       (PCX-L2)
+	PA-8000         (PCX-U)
+	PA-8200         (PCX-U+)
+	PA-8500         (PCX-W)
+	PA-8600         (PCX-W+)
+	PA-8700         (PCX-W2)
+
+	705, 710, 720, 730, 750
+       712, 715, 725, 735, 755
+       B, C, J class workstations
+       D, K, R, A, L, N class servers and rpXXXX servers
+       T and V class servers are not supported
+       Superdome will need some additional work.
+
+  (see Documentation/parisc)
+  <http://www.parisc-linux.org>
+
+ 11. PowerPC
+ =7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E
+ 	Amiga PowerUP		(APUS)
+	BSE-IP
+	Cogent Willow
+	Dependable Compt. Syst.	(SM850)
+	Galileo			(EV-64260-BP)
+	IBM			(Spruce)
+	IKENDI AG		(FPS850L)
+	MicroSys		(IP860)
+	Motorola		(LoPEC, MCPN765, MVME5100)
+	Motorola		(PowerPlus, PrPMC750, PrPMC800)
+	Motorola CPM		(MPC8260)
+	Motorola MBX		(MPC821 and MPC860)
+	Motorola Sandpoint X3 	(any flavor)
+	Motorola WinCept 	(MPC821)
+	Multidata		(HERMES)
+ 	RPX-Lite		(PC104 form-factor SBC based on the MPC823)
+	RPX-Classic		(Credit-card-size SBC based on the MPC860)
+	RPX-Super
+	SBS-Adirondack
+	SBS-K2
+	SBS-Palomar4
+	SBS8260
+	Siemens AG		(PCU=5FE)
+	Speech Design		(SPD823TS, IVMS8, IVML24)
+	Synergy Microsystems 	(Gemini)
+	TQ Components		(TQM823L/850L/855L/860L)
+	TQ Components		(TQM8260)
+	Wind River Systems 	(EST8260)
+	=

+ 		601, 603, 604
+		740, 750, 7400
+		IBM 403, 405
+		IBM 970 (G5)
+		Motorola 821, 823, 850, 855, 860, 8260
+		POWER 3, POWER4
+ =

+  (see Documentation/powerpc)
+ =

+ 12. PowerPC 64
+ =7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E
+	iSeries
+	pSeries / PowerMac G5
+	=

+  (see Documentation/powerpc)
+
+ 13. S/390 (32/64)
+ =7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E
+	IBM eServer zSeries model z800 and z900
+	IBM eServer zSeries model z990
+	S/390 model G5 and G6
+
+  (see Documentation/s390)
+
+ 14. SuperH
+ =7E=7E=7E=7E=7E=7E=7E=7E=7E=7E
+	ADX
+	BigSur
+	CAT68701
+	CqREEK			(SH7708 or SH7750)
+ 	DataMyte 4000		(Industrial Digital Assistant)
+	Eclipse International 	(EC3104 as Harris AD2000)
+	Hitachi			(SH7709, SH7750, SH7751)
+	HP jornada		(HP620, HP680, HP690)
+	MPC1211
+	Renesas SystemH		(7751R)
+	SEGA Dreamcast
+	SEGA Saturn
+	SH2000			(SH7709A)
+	STB1=5FHarp
+	STB1=5FOverdrive
+	SnapGear SH		(SecureEdge5410)
+	generic
+
+		SH-2
+			SH7604
+		SH-3
+			SH7300
+			SH7707
+			SH7708
+			SH7709
+		SH-4
+			SH7750
+			SH7751/SH7751R
+			SH7760
+			ST40STB1
+
+  (see Documentation/sh)
+  <http://www.linux-sh.org>
+
+ 15. SPARC
+ =7E=7E=7E=7E=7E=7E=7E=7E=7E
+ 	Sun 4
+	generic
+
+  (see Documentation/sparc)
+ <http://www.ultralinux.org>
+
+ 16. UltraSPARC
+ =7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E
+	generic
+
+  (see Documentation/sparc)
+  <http://www.ultralinux.org>
+
+ 17. v850
+ =7E=7E=7E=7E=7E=7E=7E=7E
+	AS85EP1
+	Anna
+	GDB
+	RTE-V850E/MA1-CB
+	RTE-V850E/NB85E-CB
+	RTE-V850E/ME2-CB
+	sim85e2c
+	sim85e2s
+	NA85E2C-FPGA
+
+  (to use with uClinux)
+  =

+ 18. x86-64
+ =7E=7E=7E=7E=7E=7E=7E=7E=7E=7E
+ 	AMD K8/Opteron/Athlon64
+	Intel x86-64
+	generic
+
+  (see Documentation/x86=5F64)
+  <http://www.x86-64.org>
+  =

+=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
+Written by Jerome Pinot <pinotj AT club-internet DOT fr> the 14/03/2004
+Modified by =

+  <willy AT debian DOT org>
+  <joey AT infodrom DOT org>
+  <macro AT ds2.pg.gda DOT pl>
+  <ajwalker AT broadpark DOT no>
+



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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: Re: [parisc-linux] Re: [DOC] Linux
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On Sat, 20 Mar 2004 10:02:16 CET
pinotj@club-internet.fr wrote:


> +
> + 10. PA-RISC (32/64)
> + ~~~~~~~~~~~~~~~~~~~
> +	PA-7000         (PCX-S)
> +	PA-7100/PA-7150 (PCX-T)
> +	PA-7100LC       (PCX-L)
> +	PA-7200         (PCX-T')
> +	PA-7300LC       (PCX-L2)
> +	PA-8000         (PCX-U)
> +	PA-8200         (PCX-U+)
> +	PA-8500         (PCX-W)
> +	PA-8600         (PCX-W+)
> +	PA-8700         (PCX-W2)
> +
> +	705, 710, 720, 730, 750
> +       712, 715, 725, 735, 755
> +       B, C, J class workstations
> +       D, K, R, A, L, N class servers and rpXXXX servers

Well, it's a bit quick: we've got no feedback from any successful
install on R class, we only 'suspect' it should work since they're based
on D class hardware (if anyone reading this has a R running, please send
feedback by the way). L-3000 and N class only work UP, as well as P8700
boxes (rpXXXX) that have, unless i'm quite out of sync with latest
developments, some SMP troubles too. Finally, E class are supported
diskless.

> +       T and V class servers are not supported
> +       Superdome will need some additional work.

Superdome, if ever supported, will not be supported as a "Superdome"
system, but as separate units, as far as I've been told. The same goes
for 742/743 VME boards that works standalone.

Have a look at http://www.pateam.org/list.html

HTH,

Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/


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On Sat, Mar 20, 2004 at 10:02:16AM +0100, pinotj@club-internet.fr wrote:
> Thanks a lot for your answers. Seems that PA-RISC linux community are quite reactive :-)
> 
> Some people ask me about the complete file, it's not on Internet yet so I first post it here. There is probably a lot of modifications to do but it's a good start.

sorry, i just don't see this as being useful.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Sat, Mar 20, 2004 at 11:40:11AM +0100, Thibaut VARENE wrote:
> > +       Superdome will need some additional work.
> 
> Superdome, if ever supported, will not be supported as a "Superdome"
> system, but as separate units, as far as I've been told. The same goes
> for 742/743 VME boards that works standalone.

I think that's incorrect.  Superdome works as a big SMP box.  The 742/743
VME boards would have to be clustered.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Sat, 2004-03-20 13:47:20 +0000, Matthew Wilcox <willy@debian.org>
wrote in message <20040320134720.GW25059@parcelfarce.linux.theplanet.co.uk>:
> On Sat, Mar 20, 2004 at 10:02:16AM +0100, pinotj@club-internet.fr wrote:
> > Thanks a lot for your answers. Seems that PA-RISC linux community are q=
uite reactive :-)
> >=20
> > Some people ask me about the complete file, it's not on Internet yet so=
 I first post it here. There is probably a lot of modifications to do but i=
t's a good start.
>=20
> sorry, i just don't see this as being useful.

Well, it depends on audience. Personally, I like to play with everything
that can recognize '0' and '1'. If it's capable to run Linux, that's
even better. So this list helps me if I see some old hardware on ebay...

Oh, VAX machines are also supported - somewhat.

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier B=FCrger" | im Internet! |   im Ira=
k!
   ret =3D do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TC=
PA));

--oCnZCSkKDqa/ZF0A
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: Digital signature
Content-Disposition: inline

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Version: GnuPG v1.2.4 (GNU/Linux)

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--oCnZCSkKDqa/ZF0A--


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On Sat, 2004-03-20 at 16:01, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/03/20 14:01:16
> 
> Modified files:
> 	drivers/input/keyboard: hpps2atkbd.h 
> 
> Log message:
> Fix compile failure.
> 
> This KEY_103RD is coming to us from the vanilla kernel, but it isn't
> defined anywhere there

Helge, is this fix OK?

James

===== drivers/input/keyboard/hpps2atkbd.h 1.3 vs edited =====
--- 1.3/drivers/input/keyboard/hpps2atkbd.h	Tue Mar 16 17:05:31 2004
+++ edited/drivers/input/keyboard/hpps2atkbd.h	Tue Mar 16 19:23:14 2004
@@ -50,7 +50,7 @@
 /* 60 */  KEY_DOWN,     C_61,          KEY_PAUSE,     KEY_UP,        KEY_DELETE,    KEY_END,      KEY_BACKSPACE, KEY_INSERT,
 /* 68 */  KEY_RESERVED, KEY_KP1,       KEY_RIGHT,     KEY_KP4,       KEY_KP7,       KEY_PAGEDOWN, KEY_HOME,      KEY_PAGEUP,
 /* 70 */  KEY_KP0,      KEY_KPDOT,     KEY_KP2,       KEY_KP5,       KEY_KP6,       KEY_KP8,      KEY_ESC,       KEY_NUMLOCK,
-/* 78 */  KEY_F11,      KEY_KPPLUS,    KEY_KP3,       KEY_KPMINUS,   KEY_KPASTERISK,KEY_KP9,      KEY_SCROLLLOCK,KEY_103RD,
+/* 78 */  KEY_F11,      KEY_KPPLUS,    KEY_KP3,       KEY_KPMINUS,   KEY_KPASTERISK,KEY_KP9,      KEY_SCROLLLOCK,KEY_102ND,
 /* 80 */  KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,
 /* 88 */  KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,
 /* 90 */  KEY_RESERVED, KEY_RIGHTALT,  KEY_SYSRQ,     KEY_RESERVED,  KEY_RIGHTCTRL, KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,



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On Saturday 20 March 2004 22:04, James Bottomley wrote:
> On Sat, 2004-03-20 at 16:01, James Bottomley wrote:
> > CVSROOT:	/var/cvs
> > Module name:	linux-2.6
> > Changes by:	jejb	04/03/20 14:01:16
> > 
> > Modified files:
> > 	drivers/input/keyboard: hpps2atkbd.h 
> > 
> > Log message:
> > Fix compile failure.
> > 
> > This KEY_103RD is coming to us from the vanilla kernel, but it isn't
> > defined anywhere there
> 
> Helge, is this fix OK?

Hi James,

keep the one from our CVS.
I didn't sent the latest patches to Vojtech yet.

Thanks,
Helge


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On Saturday 20 March 2004 22:10, Helge Deller wrote:
> On Saturday 20 March 2004 22:04, James Bottomley wrote:
> > On Sat, 2004-03-20 at 16:01, James Bottomley wrote:
> > > CVSROOT:	/var/cvs
> > > Module name:	linux-2.6
> > > Changes by:	jejb	04/03/20 14:01:16
> > > 
> > > Modified files:
> > > 	drivers/input/keyboard: hpps2atkbd.h 
> > > 
> > > Log message:
> > > Fix compile failure.
> > > 
> > > This KEY_103RD is coming to us from the vanilla kernel, but it isn't
> > > defined anywhere there
> > 
> > Helge, is this fix OK?
> 
> Hi James,
> 
> keep the one from our CVS.

Oops, sorry.
Of course this is correct AFAICS.

Helge


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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] 2.6.5-rc1-pa1 hung on C110
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Hi all,

I just rebuild 2.6.5-rc1-pa1 kernel on my c110 with b180 config (minus hil kbd and mouse support).

Unfortunately it hung during boot at:
[snip]
EXT3 FS on md5, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sdb9, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda9, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
/dev/md0 on /boot type ext3 (rw)
/dev/md3 on /var type ext3 (rw)
/dev/md4 on /tmp type ext3 (rw)
/dev/md5 on /home type ext3 (rw)
/dev/sdb9 on /Debian-apt type ext3 (rw)
/dev/sda9 on /Sources type ext3 (rw)
Cleaning /tmp /var/run /var/lock.
Running 0dns-down to make sure resolv.conf is ok...done.
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces...

I toc the system and parse the pim (not yet called piminfo on c110 :))which give me the following result:
[snip]
GR[02] == rp = 0xf00556fc

Func: _end, Off: 0xdfbc7a94, Addr: 0xf00556fc

[snip]
IIA Offset                   = 0x10261878
...

e.g. IAOQ = 0x10261878

Parse IAOQ = 0x10261878 for CPU[0]

Func: ncr_reset_scsi_bus, Off: 0x150, Addr: 0x10261878

10261870:	00 16 18 60 	mtsm r22
10261874:	d2 a3 1b f8 	extrw,u r21,31,8,r3
10261878:	34 06 00 04 	ldi 2,r6
1026187c:	d6 c3 0a 3f 	depw,z r3,14,1,r22

Any idea?
(is it to put in relation with previous pb of panic with 2.6.4-pa2 of previous week:
http://lists.parisc-linux.org/pipermail/parisc-linux/2004-March/022569.html?)

Thanks in advance,
	Joel

PS: the last operational 2.6 is a 2.6.3-rc1-pa3


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On Sat, Mar 20, 2004 at 11:45:59PM +0000, Joel Soete wrote:
> I just rebuild 2.6.5-rc1-pa1 kernel on my c110 with b180 config (minus hil 
> kbd and mouse support).

c110 requires ccio driver. B180 does not.
Is that included in the b180 config?

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:21149

Hi Grant,

Grant Grundler wrote:
> On Sat, Mar 20, 2004 at 11:45:59PM +0000, Joel Soete wrote:
> 
>>I just rebuild 2.6.5-rc1-pa1 kernel on my c110 with b180 config (minus hil 
>>kbd and mouse support).
> 
> 
> c110 requires ccio driver. B180 does not.
> Is that included in the b180 config?
> 
Yes.
Here is the config part:
[snip]
#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
# CONFIG_ISA is not set
CONFIG_PCI=y
CONFIG_PCI_LEGACY_PROC=y
CONFIG_PCI_NAMES=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y

the same as 2.6.3-rc1:
#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
# CONFIG_ISA is not set
CONFIG_PCI=y
CONFIG_PCI_LEGACY_PROC=y
CONFIG_PCI_NAMES=y
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
# CONFIG_HOTPLUG is not set

Thanks,
	Joel


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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
Date: Sun, 21 Mar 2004 13:17:04 +0000
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Hi all,

I just co last cvs kernel 2.6.5-rc2-pa2 and rebuild it last b180 config file on my c110 but still boot panic with following dmesg:
Linux version 2.6.5-rc2-pa2 (root@hpalin) (gcc version 3.3.3 (Debian 20040306)) #1 Sun Mar 21 13:27:53 CET 2004
FP[0] enabled: Rev 1 Model 11
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0000008a
vers  0000000d
CPUID vers 11 rev 13 (0x0000016d)
model 9000/777/C110
Total Memory: 128 Mb
On node 0 totalpages: 32768
   DMA zone: 32768 pages, LIFO batch:8
   Normal zone: 0 pages, LIFO batch:1
   HighMem zone: 0 pages, LIFO batch:1
Built 1 zonelists
Kernel command line: root=/dev/md2 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=3/vmlinux-2.6.5-rc2-pa2
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Memory: 126200k available
Calibrating delay loop... 119.60 BogoMIPS
Security Scaffold v1.0.0 initialized
Capability LSM initialized
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
POSIX conformance testing by UNIFIX
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0x7, 0x580, 0x0000b }
2. SkyHawk 100/120 FW-SCSI at 0xf3f8c000 [8/12] { 4, 0x0, 0x01f, 0x00089 }
3. Raven T' Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x032, 0x00081 },  additional addresses: 0xffd0c000 0xffc00000
4. Raven T' Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x032, 0x00074 },  additional addresses: 0xffd01000 0xffd03000
5. Raven T' Audio at 0xffd04000 [8/16/1] { 10, 0x0, 0x032, 0x0007b }
6. Raven T' Lasi Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x032, 0x0008c }
7. Raven T' Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x032, 0x00082 }
8. Raven T' Core LAN (802.3) at 0xffd07000 [8/16/6] { 10, 0x0, 0x032, 0x0008a }
9. Raven T' Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x032, 0x00084 }
10. Raven T' Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x032, 0x00084 }
11. Raven T' Core PC Floppy at 0xffd0a000 [8/16/10] { 10, 0x0, 0x032, 0x00083 }
12. Raven T' Wax BA at 0xffe00000 [8/20] { 11, 0x0, 0x01e, 0x0008e },  additional addresses: 0xffe03000 0xffe06000
13. Raven T' Wax HIL at 0xffe01000 [8/20/1] { 10, 0x0, 0x01e, 0x00073 }
14. Raven T' Wax RS-232 at 0xffe02000 [8/20/2] { 10, 0x0, 0x01e, 0x0008c }
15. Raven T' Wax EISA BA at 0xfc000000 [8/20/5] { 11, 0x0, 0x01e, 0x00090 },  additional addresses: 0xffc88400 0xf4000000
16. U2-IOA BC GSC+ Port at 0xf3fbf000 [8/63] { 7, 0x1, 0x501, 0x0000c },  additional addresses: 0xf3f80000
17. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0x7, 0x580, 0x0000b }
18. Raven T' GSC Core Graphics at 0xf4000000 [10/16] { 10, 0x0, 0x032, 0x00085 },  additional addresses: 0xf0069000
19. U2-IOA BC GSC+ Port at 0xf3fff000 [10/63] { 7, 0x1, 0x501, 0x0000c }
20. Raven 120 T' at 0xfffa0000 [32] { 0, 0x0, 0x58e, 0x00004 }
21. Memory at 0xfffb1000 [49] { 1, 0x0, 0x049, 0x00009 }
CPU(s): 1 x PA7200 (PCX-T') at 120.000000 MHz
Lasi version 0 at 0xffd00000 found.
Wax at 0xffe00000 found.
Wax EISA Adapter found at 0xfc000000
EISA EEPROM: cannot register misc device.
Enumerating EISA bus
EISA: Probing bus 0 at parisc8:20:5
EISA: Mainboard HWPC0E1 detected.
EISA: Detected 0 cards.
SCSI subsystem initialized
STI GSC/PCI core graphics driver Version 0.9a
     id 2b4ded6d-40a00499, conforms to spec rev. 8.04
     graphics card name: HPA208LC1024
fb0: stifb 1024x768-8 frame buffer device, HPA208LC1024, id: 2b4ded6d, mmio: 0xf4100000
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
Soft power switch enabled, polling @ 0xf0140000.
Console: switching to colour frame buffer device 128x48
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
loop: loaded (max 8 devices)
PPP generic driver version 2.4.2

Stack Dump:
  10594718:  10594718 1035c010 00000000 39158180
  10594708:  1042dc80 1035b1c8 1035d7c4 10368270
  105946f8:  00000004 00002e92 00002e94 1014133c
  105946e8:  100fe640 17fdf080 fffffff4 100fe64c
  105946d8:  1035d7c4 1035d7c4 000000b5 00000000
  105946c8:  10594380 0000001a 00000000 10368270
  105946b8:  00000004 00002e89 00002e92 1010401c
  105946a8:  1035c010 00000000 39158180 1042dc80
  10594698:  1035b1c8 1035d7c4 000000b5 00000001
  10594688:  1035db0c 17fe9a50 000000d0 17ff8b2c
  10594678:  00000000 17ff8b2c 000000d0 00000001
  10594668:  00000001 000000d0 1042dc80 1035b1c8
  10594658:  3b9aca00 ffd06100 17f390c0 1036e578
  10594648:  17fdd600 17fe9a50 00000010 17ff8ab8
  10594638:  00000080 17ff8ab8 000000d0 101414c8
  10594628:  00000001 000000d0 100d7084 17ff8ab8
  10594618:  100d7040 100e4000 100d7f38 100d7f38
  10594608:  00000001 000000d0 000000d0 17ff8ab8
  105945f8:  00000040 17ff8ab8 000000d0 1014492c
  105945e8:  00000001 000000d0 1042dc80 1035b1c8
  105945d8:  3b9aca00 1035d010 1042d810 00000001
  105945c8:  1035db0c 17fe9a50 00000010 10031640
  105945b8:  105f2400 10444404 1036f010 10109088
  105945a8:  10445010 00000000 1035e810 10594408
  10594598:  17ff2b20 00000000 000000f3 0098963a
  10594588:  39158180 1042dc80 fffffff4 17ff8ab8
  10594578:  00000000 17ff8ab8 000000d0 10174e34
  10594568:  00000001 00000000 17ff2b20 10594408
  10594558:  00000000 00000000 00000000 00000000
  10594548:  0e601096 0000000e 100e46c0 10368270
  10594538:  00000004 17fedd00 10594388 103bdd20
  10594528:  103bdd1c 00000000 00000000 00000000
  10594518:  00000000 00000000 00000000 00000000
  10594508:  00000000 00000000 00000000 00000000
  105944f8:  41000000 00000000 40800000 00000000
  105944e8:  40000000 00000000 40000000 7fffffff
  105944d8:  41800000 00000000 40200000 00000000
  105944c8:  40200000 00000000 40300000 00000000
  105944b8:  41000000 00000000 40800000 7fffffff
  105944a8:  7fffffff 00000000 41000000 7fffffff
  10594498:  7fffffff 00000800 00000400 00000200
  10594488:  00000100 00000080 00000040 00000000
  10594478:  00000000 00000010 00000010 00000000
  10594468:  41800000 25b7ea20 45e69c6a 00000000
  10594458:  00000000 e0000000 43ebebeb ffffffff
  10594448:  7f7fffff 00000020 00000010 00000000
  10594438:  00000000 00000000 00000000 00000000
  10594428:  00000000 00000000 00000000 00000000
  10594418:  0000001f 00000000 0000001f 00000000
  10594408:  0000001f 00000000 000b0800 1010cb30
  105943f8:  10594380 3a699d00 17f390c0 10346010
  105943e8:  17fdd688 00000000 ffffffff 00000000
  105943d8:  17f3910c 00000000 00000000 00000000
  105943c8:  f00000a4 f00000ac f00010f4 1042d810
  105943b8:  1035d010 3b9aca00 1035b1c8 1042dc80
  105943a8:  ffffffff 00000000 000000f3 17fdd688
  10594398:  17fdd600 1036e578 17f390c0 ffd06100
  10594388:  103bdbe8 1042b010 0004ff0f 10368270
  10594378:  00000004 00002f25 00002f42 103bdbcc
  10594368:  10364178 00000400 1042e810 1036dab4
  10594358:  103641c4 1035c010 00000000 1036e5a0
  10594348:  1036e5a0 10348544 1036e5a0 10368270
  10594338:  00000004 00002f73 00002f94 101907c4
  10594328:  1036dab8 1036dab8 00000014 1036dab4

Kernel addresses on the stack:
  [<101242ac>] call_console_drivers+0xd4/0x17c
  [<10103d68>] parisc_terminate+0x60/0xb4
  [<1014133c>] buffered_rmqueue+0xfc/0x1bc
  [<1010401c>] handle_interruption+0x260/0x560
  [<101414c8>] __alloc_pages+0xcc/0x378
  [<1014492c>] cache_init_objs+0xb0/0xb8
  [<10109088>] intr_check_sig+0x0/0xc
  [<10174e34>] d_alloc+0x34/0x1f0
  [<103bdd20>] lasi700_probe+0x190/0x1cc
  [<103bdbcc>] lasi700_probe+0x3c/0x1cc
  [<101907c4>] sysfs_create_dir+0x3c/0x80
  [<1010cb30>] parisc_driver_probe+0x2c/0x60
  [<102197c8>] bus_match+0x4c/0x84
  [<10219934>] driver_attach+0x80/0xa8
  [<101e8498>] kobject_register+0x28/0x64
  [<10219c10>] bus_add_driver+0xac/0xbc
  [<101e83cc>] kobject_add+0x54/0xf8
  [<10219fc0>] driver_register+0x44/0x50
  [<103bdb6c>] NCR_700_init+0x18/0x3c
  [<103a9384>] do_initcalls+0x58/0xfc
  [<101001d0>] init+0x28/0xd0
  [<10108c5c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=26 regs=10594380 (Addr=00000000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 1042b010 103bdbe8 ffd06100
r04-07  17f390c0 1036e578 17fdd600 17fdd688
r08-11  000000f3 00000000 ffffffff 1042dc80
r12-15  1035b1c8 3b9aca00 1035d010 1042d810
r16-19  f00010f4 f00000ac f00000a4 00000000
r20-23  00000000 00000000 17f3910c 00000000
r24-27  ffffffff 00000000 17fdd688 10346010
r28-31  17f390c0 3a699d00 10594380 1010cb30
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 103bdd1c 103bdd20
  IIR: 0e601096    ISR: 00000000  IOR: 00000000
  CPU:        0   CR30: 10594000 CR31: 103a0000
  ORIG_R28: 00000004
  IAOQ[0]: lasi700_probe+0x18c/0x1cc
  IAOQ[1]: lasi700_probe+0x190/0x1cc
  RP(r2): lasi700_probe+0x58/0x1cc

hth,
	Joel


From - Thu Nov 08 21:31:22 2018
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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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Xref: news.gmane.org gmane.linux.ports.parisc:21151

On Sun, Mar 21, 2004 at 01:17:04PM +0000, Joel Soete wrote:
...
> PPP generic driver version 2.4.2
...
> Kernel addresses on the stack:

[ looks a bit scrambled ]

...
> Kernel Fault: Code=26 regs=10594380 (Addr=00000000)

null ptr deref.

...
>  IAOQ[0]: lasi700_probe+0x18c/0x1cc
>  IAOQ[1]: lasi700_probe+0x190/0x1cc
>  RP(r2): lasi700_probe+0x58/0x1cc

IOAQ[0] is the offending instruction.
Brute force debug method is to start adding
printk's to lasi700_probe. It shouldn't take
more than a few iterations to find the offending line.

grant


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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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Hello Grant,

>> ...
>>  IAOQ[0]: lasi700_probe+0x18c/0x1cc
>>  IAOQ[1]: lasi700_probe+0x190/0x1cc
>>  RP(r2): lasi700_probe+0x58/0x1cc
>
>IOAQ[0] is the offending instruction.
>Brute force debug method is to start adding
>printk's to lasi700_probe. It shouldn't take
>more than a few iterations to find the offending line.

Thanks, I will foreseen such work next week-end :)

Joel


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On Saturday 20 March 2004 6:49 am, Matthew Wilcox wrote:
> On Sat, Mar 20, 2004 at 11:40:11AM +0100, Thibaut VARENE wrote:
> > > +       Superdome will need some additional work.
> > 
> > Superdome, if ever supported, will not be supported as a "Superdome"
> > system, but as separate units, as far as I've been told. The same goes
> > for 742/743 VME boards that works standalone.
> 
> I think that's incorrect.  Superdome works as a big SMP box.

I thought Superdome needed the kmap trick to deal with the fact
that it doesn't do non-equivalent aliasing quite right.  Or maybe
that's already been done?


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Hello,

I'm intending to build kernel 2.6.4 for a HP D370 and I'm running into some 
problems. The major one is the next error while doing the `make`:

arch/parisc/kernel/pdc_cons.c:102: `CON_BOOT' undeclared here (not in a function)
arch/parisc/kernel/pdc_cons.c:102: initializer element is not constant
arch/parisc/kernel/pdc_cons.c:102: (near initialization for `pdc_cons.flags')


I've tried to build without any console except for a serial console maily 
because there is no other console on this hardware but also without success.

Hence my questions:

Does someone happen to have a configuration file for the D370? Can I get it 
somewhere?
Is there a reason NOT to build 2.6.x on this D300 hardware?

My major reason is to get the second processor in the machine also do some work, 
I don't care about 64 bits, hence 32 bits will do.




Thanks

CBee



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> Hence my questions:
> 
> Does someone happen to have a configuration file for the D370? Can I get it 
> somewhere?
> Is there a reason NOT to build 2.6.x on this D300 hardware?

probably you are trying to build using kernel.org sources. you should
use sources from parisc-linux.org instead.

http://cvs.parisc-linux.org/download/linux-2.6/

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Mon, Mar 22, 2004 at 09:23:58AM -0700, Bjorn Helgaas wrote:
> On Saturday 20 March 2004 6:49 am, Matthew Wilcox wrote:
> > On Sat, Mar 20, 2004 at 11:40:11AM +0100, Thibaut VARENE wrote:
> > > > +       Superdome will need some additional work.
> > > 
> > > Superdome, if ever supported, will not be supported as a "Superdome"
> > > system, but as separate units, as far as I've been told. The same goes
> > > for 742/743 VME boards that works standalone.
> > 
> > I think that's incorrect.  Superdome works as a big SMP box.
> 
> I thought Superdome needed the kmap trick to deal with the fact
> that it doesn't do non-equivalent aliasing quite right.  Or maybe
> that's already been done?

Right, that's the "some additional work" ;-) Thibaut was talking about
decomposing a superdome into a cluster of 4-way SMPs, I think.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Subject: [parisc-linux] Re: credential invertible
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From - Thu Nov 08 21:31:23 2018
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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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On Sun, Mar 21, 2004 at 12:57:16PM -0700, Grant Grundler wrote:
> > Kernel Fault: Code=26 regs=10594380 (Addr=00000000)
> 
> null ptr deref.
> 
> ...
> >  IAOQ[0]: lasi700_probe+0x18c/0x1cc
> >  IAOQ[1]: lasi700_probe+0x190/0x1cc
> >  RP(r2): lasi700_probe+0x58/0x1cc
> 
> IOAQ[0] is the offending instruction.

James Bottomley observed a problem with hppa_dma_ops
not being set properly for his U2/Uturn box.
This is likely the same problem.
See ccio driver isn't claiming the chip when it should.

grant


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On Sun, Mar 21, 2004 at 03:03:09PM -0700, Matthew Wilcox wrote:
> Log message:
> Patch from Grant Grundler to use REQUEST_SENSE and INQUIRY instead of
> magic numbers.

Ta!

sorry for the "throw it over the fence" on that one.
But it was obvious enough I guess in this case.

thanks,
grant


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Hello Carlos,

Sorry for delay,...
>> 
>
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-float.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-double.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-ifloat.out] Error
1
make[1]: *** [math/tests] Error 2
make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/tst-strtod.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/bug-strtod.out] Error
1
make[1]: *** [stdlib/tests] Error 2
make[2]: [/Develop/parisc-linux/build/glibc/posix/annexc.out] Error 1 (ignored)
make[2]: *** [/Develop/parisc-linux/build/glibc/elf/tst-tls13.out] Error
1
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

So same known errors with cvs dated 2004 03 22 :)

hth,
    Joel


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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Cast of lvalue warning in the last k 2.6.5-rc2 with
	last gcc-3.3
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Hi all,

here is a warning during the last kernel build (2.6.5-rc2):
  gcc -Wp,-MD,arch/parisc/lib/.bitops.o.d -nostdinc -iwithprefix include
-D__KERNEL__ -Iinclude  -D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes
-Wno-trigraphs
-fno-strict-aliasing -fno-common -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000 -O2 -fomit-frame-pointer
    -DKBUILD_BASENAME=bitops -DKBUILD_MODNAME=bitops -c -o arch/parisc/lib/bitops.o
arch/parisc/lib/bitops.c
arch/parisc/lib/bitops.c: In function `__xchg32':
arch/parisc/lib/bitops.c:40: warning: use of cast expressions as lvalues
is deprecated
arch/parisc/lib/bitops.c: In function `__xchg8':
arch/parisc/lib/bitops.c:53: warning: use of cast expressions as lvalues
is deprecated

And here is a patch proposal:
--- /usr/src/linux-2.6.5-rc2-pa2/arch/parisc/lib/bitops.c.orig	2004-03-22
08:35:45.000000000 +0100
+++ /usr/src/linux-2.6.5-rc2-pa2/arch/parisc/lib/bitops.c	2004-03-22 08:42:10.000000000
+0100
@@ -33,11 +33,10 @@
 
 unsigned long __xchg32(int x, int *ptr)
 {
-	unsigned long flags;
-	unsigned long temp;
+	unsigned long temp, flags;
 
 	atomic_spin_lock_irqsave(ATOMIC_HASH(ptr), flags);
-	(long) temp = (long) *ptr;	/* XXX - sign extension wanted? */
+	temp = (unsigned long) *ptr;	/* XXX - sign extension wanted? */
 	*ptr = x;
 	atomic_spin_unlock_irqrestore(ATOMIC_HASH(ptr), flags);
 	return temp;
@@ -46,11 +45,10 @@
 
 unsigned long __xchg8(char x, char *ptr)
 {
-	unsigned long flags;
-	unsigned long temp;
+	unsigned long temp, flags;
 
 	atomic_spin_lock_irqsave(ATOMIC_HASH(ptr), flags);
-	(long) temp = (long) *ptr;	/* XXX - sign extension wanted? */
+	temp = (unsigned long) *ptr;	/* XXX - sign extension wanted? */
 	*ptr = x;
 	atomic_spin_unlock_irqrestore(ATOMIC_HASH(ptr), flags);
 	return temp;
@@ -60,8 +58,7 @@
 #ifdef __LP64__
 unsigned long __cmpxchg_u64(volatile unsigned long *ptr, unsigned long old,
unsigned long new)
 {
-	unsigned long flags;
-	unsigned long prev;
+	unsigned long prev, flags;
 
 	atomic_spin_lock_irqsave(ATOMIC_HASH(ptr), flags);
 	if ((prev = *ptr) == old)
==========><=========

What do you thing about?

hth,
    Joel

PS1: attached patch in case of bad wrapping webmail

PS2: still have to make the same exercise for:
  gcc -Wp,-MD,arch/parisc/lib/.io.o.d -nostdinc -iwithprefix include -D__KERNEL__
-Iinclude  -D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000 -O2 -fomit-frame-pointer
    -DKBUILD_BASENAME=io -DKBUILD_MODNAME=io -c -o arch/parisc/lib/io.o arch/parisc/lib/io.c
arch/parisc/lib/io.c: In function `__memcpy_toio':
arch/parisc/lib/io.c:24: warning: use of cast expressions as lvalues is deprecated
arch/parisc/lib/io.c:24: warning: use of cast expressions as lvalues is deprecated
...

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AP8AAAAAAP8AAAAAAP8AAAAAAP8AAP///////////////8DAwMDAwP///////4CAgAAAAAAA
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AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=

--75266516--



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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Linux only see 2Gb of ram of N4k
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Xref: news.gmane.org gmane.linux.ports.parisc:21167

Hi Grant,

I come back to you with more relevant info (I hope)
>I'm pretty sure it will look like this:
>RAM      Phys Address
>0-2GB -> 0-2GB
>      -> 2-4GB I/O Space (mostly PCI MMIO)
>2-4GB -> 4-6GB (courtesy of the memory controller)
>
>The N-class was the first box which has an I/O hole from 2-4GB
>physical address range. I hope Joel will be able to confirm this.
>If not, I likely have documentation to confirm this.
>
I added some more printk as follow:
in arch/parisc/kernel/inventory.c

static void __init pat_memconfig(void)
{
        unsigned long actual_len;
        struct pdc_pat_pd_addr_map_entry mem_table[PAT_MAX_RANGES+1];
        struct pdc_pat_pd_addr_map_entry *mtbl_ptr;
        physmem_range_t *pmem_ptr;
        long status;
        int entries;
        unsigned long length;
        int i;

        length = (PAT_MAX_RANGES + 1) * sizeof(struct pdc_pat_pd_addr_map_entry);

        status = pdc_pat_pd_get_addr_map(&actual_len, mem_table, length,
0L);

/* JSO S */
        if ((status == PDC_OK)) {
                printk("Status == PDC_OK.\n");
                printk("Sizeof(struct pdc_pat_pd_addr_map_entry) = %d.\n",
sizeof(struct pdc_pat_pd_addr_map_entry));
                printk("actual_len = %ld.\n", actual_len);
                printk("length = %ld.\n", length);
        }
/* JSO E */
        if ((status != PDC_OK)
            || ((actual_len % sizeof(struct pdc_pat_pd_addr_map_entry)) !=
0)) {

                /* The above pdc call shouldn't fail, but, just in
                 * case, just use the PAGE0 info.
                 */

                printk("\n\n\n");
                printk(KERN_WARNING "WARNING! Could not get full memory configuration.
"
                        "All memory may not be used!\n\n\n");
                pagezero_memconfig();
                return;
        }

        entries = actual_len / sizeof(struct pdc_pat_pd_addr_map_entry);
        printk("entries = %d.\n", entries);

        if (entries > PAT_MAX_RANGES) {
                printk(KERN_WARNING "This Machine has more memory ranges
than we support!\n");
                printk(KERN_WARNING "Some memory may not be used!\n");
        }

        /* Copy information into the firmware independent pmem_ranges
         * array, skipping types we don't care about. Notice we said
         * "may" above. We'll use all the entries that were returned.
         */

        npmem_ranges = 0;
        mtbl_ptr = mem_table;
        pmem_ptr = pmem_ranges; /* Global firmware independent table */
        for (i = 0; i < entries; i++,mtbl_ptr++) {
                if (   (mtbl_ptr->entry_type != PAT_MEMORY_DESCRIPTOR)
                    || (mtbl_ptr->memory_type != PAT_MEMTYPE_MEMORY)
                    || (mtbl_ptr->pages == 0)
                    || (   (mtbl_ptr->memory_usage != PAT_MEMUSE_GENERAL)
                        && (mtbl_ptr->memory_usage != PAT_MEMUSE_GI)
                        && (mtbl_ptr->memory_usage != PAT_MEMUSE_GNI) ) )
{

                        continue;
                }

                if (npmem_ranges == MAX_PHYSMEM_RANGES) {
                        printk(KERN_WARNING "This Machine has more memory
ranges than we support!\n");
                        printk(KERN_WARNING "Some memory will not be used!\n");
                        break;
                }

                set_pmem_entry(pmem_ptr++,mtbl_ptr->paddr,mtbl_ptr->pages);
                npmem_ranges++;
        }
        for (i = 0; i < entries; i++)
                printk("pmem_ranges[%d].pages = %ld.\n", i, pmem_ranges[i].pages);
        printk("npmem_ranges = %d.\n", npmem_ranges);
}

arch/parisc/mm/init.c
static void __init setup_bootmem(void)
{
[snip]
#ifndef CONFIG_DISCONTIGMEM
        /*
         * Sort the ranges. Since the number of ranges is typically
         * small, and performance is not an issue here, just do
         * a simple insertion sort.
         */

        printk("npmem_ranges = %d.(line 143)\n", npmem_ranges);
        for (i = 1; i < npmem_ranges; i++) {
                int j;

                for (j = i; j > 0; j--) {
                        unsigned long tmp;

                        if (pmem_ranges[j-1].start_pfn <
                            pmem_ranges[j].start_pfn) {

                                break;
                        }
                        tmp = pmem_ranges[j-1].start_pfn;
                        pmem_ranges[j-1].start_pfn = pmem_ranges[j].start_pfn;
                        pmem_ranges[j].start_pfn = tmp;
                        tmp = pmem_ranges[j-1].pages;
                        pmem_ranges[j-1].pages = pmem_ranges[j].pages;
                        pmem_ranges[j].pages = tmp;
                }
        }

        /*
         * Throw out ranges that are too far apart (controlled by
         * MAX_GAP). If CONFIG_DISCONTIGMEM wasn't implemented so
         * poorly, we would recommend enabling that option, but,
         * until it is fixed, this is the best way to go.
         */

        printk("npmem_ranges = %d.(line 171)\n", npmem_ranges);
        for (i = 1; i < npmem_ranges; i++) {
                printk("pmem_ranges[%d].start_pfn = %ld.\n", i-1, pmem_ranges[i-1].pages);
                printk("pmem_ranges[%d].pages = %ld.\n", i-1, pmem_ranges[i-1].pages);
                printk("pmem_ranges[%d].start_pfn = %ld.\n", i, pmem_ranges[i].pages);
                printk("MAX_GAP = %ld.\n", MAX_GAP);
                if (pmem_ranges[i].start_pfn -
                        (pmem_ranges[i-1].start_pfn +
                         pmem_ranges[i-1].pages) > MAX_GAP) {
                        npmem_ranges = i;<=====================[ref1.]
                        break;
                }
        }
#endif

        printk("npmem_ranges = %d.(line 186)\n", npmem_ranges);
        if (npmem_ranges > 1) {
[snip]

<==== return by pat_memconfig() ====>
Status == PDC_OK.
Sizeof(struct pdc_pat_pd_addr_map_entry) = 32.
actual_len = 64.
length = 1056.
entries = 2.
pmem_ranges[0].pages = 524288.
pmem_ranges[1].pages = 524288.
npmem_ranges = 2.

So pat_memconfig() returns well 2 entries of 2Gb Ok

<==== return by setup_bootmem() ====>
npmem_ranges = 2.(line 143)
npmem_ranges = 2.(line 171)
pmem_ranges[0].start_pfn = 524288.
pmem_ranges[0].pages = 524288.
pmem_ranges[1].start_pfn = 524288.
MAX_GAP = 262144.
npmem_ranges = 1.(line 186)
pmem_ranges[0].pages = 524288.

So here only one entry is scan because of condition ([ref1]) but I have no
clue of the actual meaning of this condition. Thanks in advance for info
:)

RSize = 2147483648.
Total Memory: 2048 Mb
On node 0 totalpages: 524288

Thanks,
    Joel


----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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Subject: Re: [parisc-linux] 	RE: New glibc patches 2004-03-08,
	fixes GLRO changes.
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On Tue, Mar 23, 2004 at 08:07:21AM +0100, Joel Soete wrote:
> Hello Carlos,
> 
> Sorry for delay,...

No problem!

> So same known errors with cvs dated 2004 03 22 :)

Perfect. Thanks!

c.



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Xref: news.gmane.org gmane.linux.ports.parisc:21169

ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 3/23/2004 11:27:59 PM
Engine/Pattern = 6.860-1001/1.833.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


From - Thu Nov 08 21:31:23 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: <Administrator@s15113731.rootmaster.info>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [MailServer Notification]To Sender virus found and
	action taken.
Date: Wed, 24 Mar 2004 03:07:12 +0100
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Original-X-From: administrator@ncc-consulting.de  Tue Mar 23 19:07:09 2004
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ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 3/24/2004 3:07:12 AM
Engine/Pattern = 6.860-1001/1.833.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


From - Thu Nov 08 21:31:24 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: MAILER-DAEMON@cgp.pu.ru
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Undeliverable mail: Re: Document
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--_===8042489====cgp.pu.ru===_
Content-Type: text/plain; charset="utf-8"

Failed to deliver to 'goronch@vg6088.spb.edu'

WARNING! Your message was infected by VIRUS:
Suspicious File: your_document.pif

It was rejected for delivery.

Antiviral program output:
==================================================
your_document.pif		 Suspicious File: your_document.pif
==================================================




--_===8042489====cgp.pu.ru===_
Content-Type: message/delivery-status

Reporting-MTA: dns; cgp.pu.ru

Original-Recipient: rfc822;<goronch@vg6088.spb.edu>
Final-Recipient: system;<goronch@vg6088.spb.edu>
Action: failed
Status: 5.0.0

--_===8042489====cgp.pu.ru===_
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From: parisc-linux@lists.parisc-linux.org
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Subject: Re: Document
Date: Wed, 24 Mar 2004 06:19:43 +0200
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--_===8042489====cgp.pu.ru===_--


From - Thu Nov 08 21:31:24 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: oboel@physci.uct.ac.za
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Subject: [parisc-linux] Delivery Failed
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This is a multi-part message in MIME format.

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your personal record?

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------=_NextPart_000_0001_00004109.0000345E--




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Xref: news.gmane.org gmane.linux.ports.parisc:21173

ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 3/24/2004 6:59:22 AM
Engine/Pattern = 6.860-1001/1.833.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


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From: Eric Sproul <esproul@ntelos.net>
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Subject: [parisc-linux] gdth driver on L2000
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Hi all,
Forgive me if this is a FAQ.  I read the website FAQ and did a little
searching, but didn't turn up anything.  I am not a kernel hacker--
that's why I'm posting here.

I am running Debian sid on a 2-way L2000-44 (rp5450).  I have
successfully built a 64-bit, SMP 2.4.25 kernel using Debian's source
(I'd be happy to share my config if anyone is interested) and the
kernel-patch-2.4.25-hppa patch.

I want to use an Intel SRCU RAID controller in this machine, so I
modified my config to build the gdth driver into the kernel.  It fails
with an error about DMA_MODE_CASCADE being undeclared.  Looking further,
I note that this is normally declared in include/asm-$ARCH/dma.h, but it
doesn't appear in include/asm-parisc/dma.h.  Is it undeclared because it
doesn't work or because no one has needed it before?  Below is the build
output.

Would I be better off with a 2.6 kernel?  I have not yet attempted to
build any 2.6 kernels on this machine.  I took the lack of stock 2.6
kernels for hppa in sid to mean that there was a problem, but I'd love
to be wrong about that.  ;)

Thanks,
Eric

$ uname -a
Linux parisc 2.4.25-64-smp #1 SMP Mon Mar 22 10:09:38 EST 2004 parisc64
GNU/Linux

gcc-3.3-hppa64 3.3.3-2
binutils-hppa64 2.14.90.0.7-5


hppa64-linux-gcc -D__KERNEL__ -I/usr/src/kernel-source-2.4.25/include
-Wall -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing
-fno-common -O2 -D__linux__ -pipe -fno-strength-reduce -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=2.0
-mschedule=8000   -nostdinc -I
/usr/lib/gcc-lib/hppa64-linux/3.3.3/include -DKBUILD_BASENAME=gdth  -c
-o gdth.o gdth.c
gdth.c: In function `gdth_init_isa':
gdth.c:1135: warning: passing arg 1 of `memset_io' makes integer from pointer without a cast
gdth.c: In function `gdth_init_pci':
gdth.c:1292: warning: passing arg 1 of `memset_io' makes integer from pointer without a cast
gdth.c:1405: warning: passing arg 1 of `memset_io' makes integer from pointer without a cast
gdth.c:1560: warning: passing arg 1 of `memset_io' makes integer from pointer without a cast
gdth.c: In function `gdth_copy_command':
gdth.c:1792: warning: passing arg 1 of `memcpy_toio' makes integer from pointer without a cast
gdth.c:1799: warning: passing arg 1 of `memcpy_toio' makes integer from pointer without a cast
gdth.c:1806: warning: passing arg 1 of `memcpy_toio' makes integer from pointer without a cast
gdth.c:1813: warning: passing arg 1 of `memcpy_toio' makes integer from pointer without a cast
gdth.c: In function `gdth_detect':
gdth.c:4066: error: `DMA_MODE_CASCADE' undeclared (first use in this function)
gdth.c:4066: error: (Each undeclared identifier is reported only once
gdth.c:4066: error: for each function it appears in.)
make[4]: *** [gdth.o] Error 1
make[4]: Leaving directory `/usr/src/kernel-source-2.4.25/drivers/scsi'
make[3]: *** [first_rule] Error 2
make[3]: Leaving directory `/usr/src/kernel-source-2.4.25/drivers/scsi'
make[2]: *** [_subdir_scsi] Error 2
make[2]: Leaving directory `/usr/src/kernel-source-2.4.25/drivers'
make[1]: *** [_dir_drivers] Error 2
make[1]: Leaving directory `/usr/src/kernel-source-2.4.25'
make: *** [stamp-build] Error 2



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Hi all,


>PS2: still have to make the same exercise for:
>  gcc -Wp,-MD,arch/parisc/lib/.io.o.d -nostdinc -iwithprefix include >-D__KERNEL__
>-Iinclude  -D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes -Wno-trigraphs
>-fno-strict-aliasin
>  -fno-common -pipe -mno-space-regs -mfast-indirect-calls
>-mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000 -O2 >-fomit-frame-pointer
>    -DKBUILD_BASENAME=io -DKBUILD_MODNAME=io -c -o arch/parisc/lib/io.o
>arch/parisc/lib/io.c
>arch/parisc/lib/io.c: In function `__memcpy_toio':
>arch/parisc/lib/io.c:24: warning: use of cast expressions as lvalues is
>deprecated
>arch/parisc/lib/io.c:24: warning: use of cast expressions as lvalues is
>deprecated

here is the next io.c diff file proposal (if some interest :) )
--- arch/parisc/lib/io.c.orig	2004-03-24 14:47:42.703516192 +0100
+++ arch/parisc/lib/io.c	2004-03-24 14:52:46.808285240 +0100
@@ -21,19 +21,19 @@
 		goto bytecopy;
 	while (dest & 3) {
 		writeb(*(char *)src, dest++);
-		((char *)src)++;
-		count--;
+		src += sizeof(char);
+		count -= sizeof(char);
 	}
 	while (count > 3) {
 		__raw_writel(*(u32 *)src, dest);
-		src += 4;
-		dest += 4;
-		count -= 4;
+		src += sizeof(u32);
+		dest += sizeof(u32);
+		count -= sizeof(u32);
 	}
  bytecopy:
 	while (count--) {
 		writeb(*(char *)src, dest++);
-		((char *)src)++;
+		src += sizeof(char);
 	}
 }
 
@@ -62,39 +62,39 @@
 	/* Then check for misaligned start address */
 	if (src & 1) {
 		*(u8 *)dest = readb(src);
-		((u8 *)src)++;
-		((u8 *)dest)++;
-		count--;
+		src += sizeof(u8);
+		dest += sizeof(u8);
+		count -= sizeof(u8);
 		if (count < 2) goto bytecopy;
 	}
 
 	if (src & 2) {
 		*(u16 *)dest = __raw_readw(src);
-		((u16 *)src)++;
-		((u16 *)dest)++;
-		count-=2;
+		src += sizeof(u16);
+		dest += sizeof(u16);
+		count -= sizeof(u16);
 	}
 
 	while (count > 3) {
 		*(u32 *)dest = __raw_readl(src);
-		dest += 4;
-		src += 4;
-		count -= 4;
+		dest += sizeof(u32);
+		src += sizeof(u32);
+		count -= sizeof(u32);
 	}
 
  shortcopy:
 	while (count > 1) {
 		*(u16 *)dest = __raw_readw(src);
-		((u16 *)src)++;
-		((u16 *)dest)++;
-		count-=2;
+		src += sizeof(u16);
+		dest += sizeof(u16);
+		count -= sizeof(u16);
 	}
 
  bytecopy:
 	while (count--) {
 		*(char *)dest = readb(src);
-		((char *)src)++;
-		((char *)dest)++;
+		src += sizeof(char);
+		dest += sizeof(char);
 	}
 }
 
@@ -130,7 +130,7 @@
 			return;
 		count--;
 		*(unsigned char *) dst = inb(port);
-		((unsigned char *) dst)++;
+		dst += sizeof(unsigned char);
 	}
 
 	while (count >= 4) {
@@ -141,13 +141,13 @@
 		w |= inb(port) << 8;
 		w |= inb(port);
 		*(unsigned int *) dst = w;
-		((unsigned int *) dst)++;
+		dst += sizeof(unsigned int);
 	}
 
 	while (count) {
 		--count;
 		*(unsigned char *) dst = inb(port);
-		((unsigned char *) dst)++;
+		dst += sizeof(unsigned char);
 	}
 }
 
@@ -175,7 +175,7 @@
 			l = cpu_to_le16(inw(port)) << 16;
 			l |= cpu_to_le16(inw(port));
 			*(unsigned int *) dst = l;
-			((unsigned int *) dst)++;
+			dst += sizeof(unsigned int);
 		}
 		if (count) {
 			*(unsigned short *) dst = cpu_to_le16(inw(port));
@@ -184,15 +184,15 @@
 	
 	 case 0x02:			/* Buffer 16-bit aligned */
 		*(unsigned short *) dst = cpu_to_le16(inw(port));
-		((unsigned short *) dst)++;
-		count--;
+		dst += sizeof(unsigned short);
+		count -= sizeof(unsigned short);
 		while (count>=2) {
 			
 			count -= 2;
 			l = cpu_to_le16(inw(port)) << 16;
 			l |= cpu_to_le16(inw(port));
 			*(unsigned int *) dst = l;
-			((unsigned int *) dst)++;
+			dst += sizeof(unsigned int);
 		}
 		if (count) {
 			*(unsigned short *) dst = cpu_to_le16(inw(port));
@@ -207,12 +207,12 @@
 		
 		l = cpu_to_le16(inw(port));
 		*(unsigned char *) dst = l >> 8;
-		((unsigned char *) dst)++;
+		dst += sizeof(unsigned char);
 		while (count--)
 		{
 			l2 = cpu_to_le16(inw(port));
 			*(unsigned short *) dst = (l & 0xff) << 8 | (l2 >> 8);
-			((unsigned short *) dst)++;
+			dst += sizeof(unsigned short);
 			l = l2;
 		}
 		*(unsigned char *) dst = l & 0xff;
@@ -241,7 +241,7 @@
 		while (count--)
 		{
 			*(unsigned int *) dst = cpu_to_le32(inl(port));
-			((unsigned int *) dst)++;
+			dst += sizeof(unsigned int);
 		}
 		break;
 	
@@ -250,13 +250,13 @@
 		
 		l = cpu_to_le32(inl(port));
 		*(unsigned short *) dst = l >> 16;
-		((unsigned short *) dst)++;
+		dst += sizeof(unsigned short);
 		
 		while (count--)
 		{
 			l2 = cpu_to_le32(inl(port));
 			*(unsigned int *) dst = (l & 0xffff) << 16 | (l2 >> 16);
-			((unsigned int *) dst)++;
+			dst += sizeof(unsigned int);
 			l = l2;
 		}
 		*(unsigned short *) dst = l & 0xffff;
@@ -266,14 +266,14 @@
 		
 		l = cpu_to_le32(inl(port));
 		*(unsigned char *) dst = l >> 24;
-		((unsigned char *) dst)++;
+		dst += sizeof(unsigned char);
 		*(unsigned short *) dst = (l >> 8) & 0xffff;
-		((unsigned short *) dst)++;
+		dst += sizeof(unsigned short);
 		while (count--)
 		{
 			l2 = cpu_to_le32(inl(port));
 			*(unsigned int *) dst = (l & 0xff) << 24 | (l2 >> 8);
-			((unsigned int *) dst)++;
+			dst += sizeof(unsigned int);
 			l = l2;
 		}
 		*(unsigned char *) dst = l & 0xff;
@@ -283,16 +283,16 @@
 		
 		l = cpu_to_le32(inl(port));
 		*(unsigned char *) dst = l >> 24;
-		((unsigned char *) dst)++;
+		dst += sizeof(unsigned char);
 		while (count--)
 		{
 			l2 = cpu_to_le32(inl(port));
 			*(unsigned int *) dst = (l & 0xffffff) << 8 | l2 >> 24;
-			((unsigned int *) dst)++;
+			dst += sizeof(unsigned int);
 			l = l2;
 		}
 		*(unsigned short *) dst = (l >> 8) & 0xffff;
-		((unsigned short *) dst)++;
+		dst += sizeof(unsigned short);
 		*(unsigned char *) dst = l & 0xff;
 		break;
 	}
@@ -308,9 +308,9 @@
 void outsb(unsigned long port, const void * src, unsigned long count)
 {
 	while (count) {
-		count--;
 		outb(*(char *)src, port);
-		((char *) src)++;
+		src += sizeof(char);
+		count -= sizeof(char);
 	}
 }
 
@@ -333,7 +333,7 @@
 		while (count>=2) {
 			count -= 2;
 			l = *(unsigned int *) src;
-			((unsigned int *) src)++;
+			src += sizeof(unsigned int);
 			outw(le16_to_cpu(l >> 16), port);
 			outw(le16_to_cpu(l & 0xffff), port);
 		}
@@ -345,13 +345,13 @@
 	 case 0x02:			/* Buffer 16-bit aligned */
 		
 		outw(le16_to_cpu(*(unsigned short*)src), port);
-		((unsigned short *) src)++;
+		src += sizeof(unsigned short);
 		count--;
 		
 		while (count>=2) {
 			count -= 2;
 			l = *(unsigned int *) src;
-			((unsigned int *) src)++;
+			src += sizeof(unsigned int);
 			outw(le16_to_cpu(l >> 16), port);
 			outw(le16_to_cpu(l & 0xffff), port);
 		}
@@ -365,13 +365,13 @@
 		 * in this case, 16bit will have to do -- DE */
 		
 		l  = *(unsigned char *) src << 8;
-		((unsigned char *) src)++;
+		src += sizeof(unsigned char);
 		count--;
 		while (count)
 		{
 			count--;
 			l2 = *(unsigned short *) src;
-			((unsigned short *) src)++;
+			src += sizeof(unsigned short);
 			outw(le16_to_cpu(l | l2 >> 8), port);
 		        l = l2 << 8;
 		}
@@ -402,7 +402,7 @@
 		while (count--)
 		{
 			outl(le32_to_cpu(*(unsigned int *) src), port);
-			((unsigned int *) src)++;
+			src += sizeof(unsigned int);
 		}
 		break;
 	
@@ -410,12 +410,12 @@
 		--count;
 		
 		l = *(unsigned short *) src;
-		((unsigned short *) src)++;
+		src += sizeof(unsigned short);
 		
 		while (count--)
 		{
 			l2 = *(unsigned int *) src;
-			((unsigned int *) src)++;
+			src += sizeof(unsigned int);
 			outl (le32_to_cpu(l << 16 | l2 >> 16), port);
 			l = l2;
 		}
@@ -426,13 +426,13 @@
 		--count;
 		
 		l  = *(unsigned char *) src << 24;
-		((unsigned char *) src)++;
+		src += sizeof(unsigned char);
 		l |= *(unsigned short *) src << 8;
-		((unsigned short *) src)++;
+		src += sizeof(unsigned short);
 		while (count--)
 		{
 			l2 = *(unsigned int *) src;
-			((unsigned int *) src)++;
+			src += sizeof(unsigned int);
 			outl (le32_to_cpu(l | l2 >> 24), port);
 			l = l2 << 8;
 		}
@@ -443,16 +443,16 @@
 		--count;
 		
 		l  = *(unsigned char *) src << 24;
-		((unsigned char *) src)++;
+		src += sizeof(unsigned char);
 		while (count--)
 		{
 			l2 = *(unsigned int *) src;
-			((unsigned int *) src)++;
+			src += sizeof(unsigned int);
 			outl (le32_to_cpu(l | l2 >> 8), port);
 			l = l2 << 24;
 		}
 		l2  = *(unsigned short *) src << 16;
-		((unsigned short *) src)++;
+		src += sizeof(unsigned short);
 		l2 |= *(unsigned char *) src;
 		outl (le32_to_cpu(l | l2), port);
 		break;
=========><=========

hth,
    Joel

PS: I am runing a kernel with this patch on my n4k :)

----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr




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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Linux only see 2Gb of ram of N4k
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Xref: news.gmane.org gmane.linux.ports.parisc:21176

Hi Grant,

Sorry but I make a typo in
arch/parisc/mm/init.c
static void __init setup_bootmem(void)
{
[snip]
        /*
         * Throw out ranges that are too far apart (controlled by
         * MAX_GAP). If CONFIG_DISCONTIGMEM wasn't implemented so
         * poorly, we would recommend enabling that option, but,
         * until it is fixed, this is the best way to go.
         */

        printk("npmem_ranges = %d.(line 171)\n", npmem_ranges);
        for (i = 1; i < npmem_ranges; i++) {
              printk("pmem_ranges[%d].start_pfn = %ld.\n", i-1, 
pmem_ranges[i-1].pages);  <=== should be start_pfn also

                printk("pmem_ranges[%d].pages = %ld.\n", i-1, 
pmem_ranges[i-1].pages);
                printk("pmem_ranges[%d].start_pfn = %ld.\n", i, 
pmem_ranges[i].pages);    <==== here the same
                printk("MAX_GAP = %ld.\n", MAX_GAP);
[snip]
           
And actual results would be:
<==== return by setup_bootmem() ====>
pmem_ranges[0].start_pfn = 0.
pmem_ranges[0].pages = 524288.
pmem_ranges[1].start_pfn = 1572864.

Is it much more in accordance to your knowledge?

Thanks for advise,
    Joel

PS: May I risk to play with CONFIG_DISCONTIGMEM?

----------------------------------------------------------------------------------------
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Subject: Re: [parisc-linux] gdth driver on L2000
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Xref: news.gmane.org gmane.linux.ports.parisc:21177

On Wed, Mar 24, 2004 at 10:31:20AM -0500, Eric Sproul wrote:
> Forgive me if this is a FAQ.

It's not - no problem

...
> I want to use an Intel SRCU RAID controller in this machine, so I
> modified my config to build the gdth driver into the kernel.  It fails
> with an error about DMA_MODE_CASCADE being undeclared.  Looking further,
> I note that this is normally declared in include/asm-$ARCH/dma.h, but it
> doesn't appear in include/asm-parisc/dma.h.  Is it undeclared because it
> doesn't work or because no one has needed it before?

DMA_MODE_CASCADE is for ISA bus support (8237A chips).
AFAIK, parisc doesn't support ISA.

And EISA support isn't fully working yet.
EISA support still needs some code written for the WAX chip IOMMU.

gdth is a "multi-bus" driver:
	static int gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha);
	static int gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha);
	static int gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha);

The problem is the driver assumes EISA/ISA/PCI are all enabled.
The linux-2.6/drivers/scsi/Kconfig entry says only any one of those:
config SCSI_GDTH
        tristate "Intel/ICP (former GDT SCSI Disk Array) RAID Controller support
"
        depends on (ISA || EISA || PCI) && SCSI

In short, the driver needs to be mangled so it works with only PCI enabled.
[ Actually, this driver violates Documentation/CodingStyle pretty seriously.
  o too many "#if LINUX_VERSION_CODE" spread out all over the place.
  o indentation is 4 spaces and nests too deep
]

> Would I be better off with a 2.6 kernel?

Not really. linux-2.6 shows the same problem:
grundler <507>fgrep DMA_MODE_CASCADE drivers/*/gdth*
drivers/scsi/gdth.c:                set_dma_mode(ha->drq,DMA_MODE_CASCADE);

I've hacked a quick patch together that lets this driver *build* without
ISA/EISA support using linux-2.6/arch/parisc/configs/a500_defconfig.
Just enable CONFIG_GDTH and apply this patch:
	ftp://ftp.parisc-linux.org/patches/diff-2.6.5-gdth-01

If it "works for you", please submit the patch to linux-scsi mailing list
(linux-scsi@vger.kernel.org) and cc parisc-linux mailing list.


> I took the lack of stock 2.6
> kernels for hppa in sid to mean that there was a problem, but I'd love
> to be wrong about that.

2.6 is working pretty well and I think it's just up to someone to
package and upload a linux-2.6 kernel*hppa.deb.

Thanks to Paul Bame, prebuilt tar balls and .debs of nightly builds
are available for both 2.4 and 2.6 hppa kernels:
	http://cvs.parisc-linux.org/download/linux-2.4/
	http://cvs.parisc-linux.org/download/linux-2.6/

For the L2000, you can run the "a500" flavor builds.

grant


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On Wed, Mar 24, 2004 at 05:42:06PM +0100, Joel Soete wrote:
...
> And actual results would be:
> <==== return by setup_bootmem() ====>
> pmem_ranges[0].start_pfn = 0.
> pmem_ranges[0].pages = 524288.
> pmem_ranges[1].start_pfn = 1572864.
> 
> Is it much more in accordance to your knowledge?

It's more or less what I was expecting, yes.

> PS: May I risk to play with CONFIG_DISCONTIGMEM?

Isn't this open source? of course you can.

thanks,
grant


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> > PS: May I risk to play with CONFIG_DISCONTIGMEM?
>
> Isn't this open source? of course you can.

:))

I just didn't see any way to select it with 'make menuconfig' as there are
no Kconfig entry for parisc. I so conclude that anybody had never tested
this code (even in 2.4).

But ok when I will recover the availability of this server for my linux test,
I will try to build a kernel with this stuff.

Thanks a lot,
    Joel


----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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Subject: Re: [parisc-linux] gdth driver on L2000
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On Wed, 2004-03-24 at 12:31, Grant Grundler wrote:
> I've hacked a quick patch together that lets this driver *build* without
> ISA/EISA support using linux-2.6/arch/parisc/configs/a500_defconfig.
> Just enable CONFIG_GDTH and apply this patch:
> 	ftp://ftp.parisc-linux.org/patches/diff-2.6.5-gdth-01
> 
> If it "works for you", please submit the patch to linux-scsi mailing list
> (linux-scsi@vger.kernel.org) and cc parisc-linux mailing list.

Grant,
I'm working with Debian's 2.6.4 sources, but the gdth driver must be
unchanged since the patch applies cleanly.  Thanks!

All,
Does anyone else who is running Debian have a working config I could use
to start from?  I've started with the stock Debian config (with changes
applied from the parisc Kconfig) but I'm having ugly build problems and
I know I've probably screwed up somewhere.  When I built my 2.4.25
kernel, I started with the config from Debian's stock 2.4.20-64-smp
kernel and made my adjustments from there.  I don't have that luxury
with 2.6.4 as there is no stock hppa kernel yet.  If you have a working
2.6 config, please post it or email me off-list.

Thanks,
Eric




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On Wed, Mar 24, 2004 at 04:54:52PM +0100, Joel Soete wrote:
> here is the next io.c diff file proposal (if some interest :) )
> --- arch/parisc/lib/io.c.orig	2004-03-24 14:47:42.703516192 +0100
> +++ arch/parisc/lib/io.c	2004-03-24 14:52:46.808285240 +0100
> @@ -21,19 +21,19 @@
>  		goto bytecopy;
>  	while (dest & 3) {
>  		writeb(*(char *)src, dest++);
> -		((char *)src)++;
> -		count--;
> +		src += sizeof(char);
> +		count -= sizeof(char);

eww.  Here's my attempt at something similar:

@@ -20,8 +20,9 @@ void __memcpy_toio(unsigned long dest, u
        if ((dest & 3) != (src & 3))
                goto bytecopy;
        while (dest & 3) {
-               writeb(*(char *)src, dest++);
-               ((char *)src)++;
+               writeb(*(char *)src, dest);
+               src++;
+               dest++;
                count--;
        }
        while (count > 3) {


>  	}
>  	while (count > 3) {
>  		__raw_writel(*(u32 *)src, dest);
> -		src += 4;
> -		dest += 4;
> -		count -= 4;
> +		src += sizeof(u32);
> +		dest += sizeof(u32);
> +		count -= sizeof(u32);

No, don't change these.

>   bytecopy:
>  	while (count--) {
>  		writeb(*(char *)src, dest++);
> -		((char *)src)++;
> +		src += sizeof(char);

...
-               writeb(*(char *)src, dest++);
-               ((char *)src)++;
+               writeb(*(char *)src, dest);
+               src++;
+               dest++;
...

I don't have time to finish off this patch right now.  Want to take a
stab at redoing it?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Subject: Re: [parisc-linux] gdth driver on L2000
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On Wed, 2004-03-24 at 14:56, Eric Sproul wrote:
> All,
> Does anyone else who is running Debian have a working config I could use
> to start from?  I've started with the stock Debian config (with changes
> applied from the parisc Kconfig) but I'm having ugly build problems and
> I know I've probably screwed up somewhere.

Bad form replying to my own post, but I continue to have this problem
and could use some extra eyes/brain cells.  ;)

I put together what I thought was a sensible config for my L2000. 
However, I get a funky error where it claims the UTS Release is
mismatched, but the stated values are identical.  That may or may not be
connected to the make error where cpu_present_map appears undefined but
does appear in include/asm-parisc/smp.h.  Maybe even though CONFIG_SMP=Y
it is not including smp.h?

Could someone point me in the right direction to correct this error?

Thanks,
Eric

I am appending an extraversion of "-64-smp" because I am specifying the
following config options:

CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PARISC64=y
CONFIG_64BIT=y
CONFIG_SMP=y

(configure step completes normally, then...)

/usr/bin/make EXTRAVERSION=-64-smp   \
                                ARCH=parisc prepare
make[1]: Entering directory `/usr/src/kernel-source-2.6.4'
  HOSTCC  scripts/split-include
  HOSTCC  scripts/conmakehash
  HOSTCC  scripts/docproc
  HOSTCC  scripts/kallsyms
  CC      scripts/empty.o
  HOSTCC  scripts/mk_elfconfig
  MKELF   scripts/elfconfig.h
  HOSTCC  scripts/file2alias.o
  HOSTCC  scripts/modpost.o
  HOSTCC  scripts/sumversion.o
  HOSTLD  scripts/modpost
  HOSTCC  scripts/pnmtologo
  HOSTCC  scripts/bin2c
  SYMLINK include/asm -> include/asm-parisc
  CHK     include/linux/version.h
  UPD     include/linux/version.h
  SPLIT   include/linux/autoconf.h -> include/config/*
  CC      arch/parisc/kernel/asm-offsets.s
  CHK     include/asm-parisc/offsets.h
  UPD     include/asm-parisc/offsets.h
make[1]: Leaving directory `/usr/src/kernel-source-2.6.4'
echo done >  stamp-kernel-configure
echo done >  stamp-configure
The UTS Release version in include/linux/version.h
     "2.6.4-64-smp"
does not match current version
     "2.6.4-64-smp"
Reconfiguring.
touch Makefile
test -f stamp-configure || /usr/bin/make -f
/usr/share/kernel-package/rules configure
/usr/bin/make  EXTRAVERSION=-64-smp  ARCH=parisc \
                     vmlinux
make[1]: Entering directory `/usr/src/kernel-source-2.6.4'
  CHK     include/linux/version.h
make[2]: `arch/parisc/kernel/asm-offsets.s' is up to date.
  CC      init/main.o
In file included from init/main.c:35:
include/linux/kernel_stat.h: In function `kstat_irqs':
include/linux/kernel_stat.h:47: error: `cpu_present_map' undeclared
(first use in this function)
include/linux/kernel_stat.h:47: error: (Each undeclared identifier is
reported only once
include/linux/kernel_stat.h:47: error: for each function it appears in.)
init/main.c: In function `smp_init':
init/main.c:362: error: `cpu_present_map' undeclared (first use in this
function)
make[2]: *** [init/main.o] Error 1
make[1]: *** [init] Error 2
make[1]: Leaving directory `/usr/src/kernel-source-2.6.4'
make: *** [stamp-build] Error 2



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ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
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Engine/Pattern = 6.860-1001/1.835.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


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On Wed, Mar 24, 2004 at 02:56:49PM -0500, Eric Sproul wrote:
> Grant,
> I'm working with Debian's 2.6.4 sources, but the gdth driver must be
> unchanged since the patch applies cleanly.  Thanks!

good

> All,
> Does anyone else who is running Debian have a working config I could use
> to start from?

Grab a500_defconfig from 
	http://cvs.parisc-linux.org/linux-2.6/arch/parisc/configs

that works.

grant


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On Wed, Mar 24, 2004 at 04:21:16PM -0500, Eric Sproul wrote:
> Maybe even though CONFIG_SMP=Y it is not including smp.h?

Do not enable CONFIG_SMP on 2.6 kernels. It doesn't work.

grant


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> -#define cpu_possible_map	cpu_present_map
> +#define cpu_possible_map	cpu_present_mask
>  
>  #endif /* CONFIG_SMP */
> =========><=========
> >
> >Is it correct?

I think this is correct, but i'm not sure. i believe this is part of 
the hotplug cpu patches that are being disucssed and we are waiting for
that to do more smp work.

jejb/willy, any comments on this?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

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Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


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On Wed, Mar 24, 2004 at 11:28:31PM -0800, Randolph Chung wrote:
> I think this is correct, but i'm not sure. i believe this is part of 
> the hotplug cpu patches that are being disucssed and we are waiting for
> that to do more smp work.
> 
> jejb/willy, any comments on this?

I just started looking at this.
We don't need cpu_present_map.
We should use cpu_possible_mask in our arch/parisck/kernel/smp.c.

grant


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>>  	}
>>  	while (count > 3) {
>>  		__raw_writel(*(u32 *)src, dest);
>> -		src += 4;
>> -		dest += 4;
>> -		count -= 4;
>> +		src += sizeof(u32);
>> +		dest += sizeof(u32);
>> +		count -= sizeof(u32);
>
>No, don't change these.

Just to explain that it was inspired by a Andreas Jaeger's patch (http://sources.redhat.com/ml/libc-hacker/2004-03/msg00007.html)
 and wasn't originaly requested by the warning.
But I find it nice to add it to show the relationship between __raw_writel()
and increment, decrement actions.

That said, there are no urgency to fix it: it is still a warning with gcc-3.3
:)

Thanks for feedback,
    Joel


T

----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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(should have replied to the list...)

On Wed, 2004-03-24 at 22:27, Grant Grundler wrote:
> On Wed, Mar 24, 2004 at 04:21:16PM -0500, Eric Sproul wrote:
> > Maybe even though CONFIG_SMP=Y it is not including smp.h?
> 
> Do not enable CONFIG_SMP on 2.6 kernels. It doesn't work.

Ah, OK.  Well that's a deal-breaker for me.  I really need SMP.

I'll see if I can adapt your gdth patch to 2.4.25 and I'll post my
results.  Thanks again for doing that.  It's one more piece of the
kernel I understand just a bit better now.  :)

Thanks,
Eric



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On Wed, 2004-03-24 at 22:26, Grant Grundler wrote:
> On Wed, Mar 24, 2004 at 02:56:49PM -0500, Eric Sproul wrote:
> > Grant,
> > I'm working with Debian's 2.6.4 sources, but the gdth driver must be
> > unchanged since the patch applies cleanly.  Thanks!
> 
> good

I successfully ported Grant's patch to 2.4.25, and have attached a diff
for gdth.c.  All credit for this goes to Grant-- I just adjusted the
line numbers. ;)  I'll be submitting this patch as requested to
linux-scsi.

The driver appears to work now in my 2.4.25-64-smp kernel:

GDT: Storage RAID Controller Driver. Version: 2.05
GDT: Found 1 PCI Storage RAID Controllers
GDT CTR0: Configuring GDT-PCI HA at 32/0 IRQ 128

lspci:
20:00.0 RAID bus controller: Intel Corp. RAID Controller

I'm moving now to check out the RAID management utility from Intel that
supposedly worked under Debian 2.2.  I haven't even peeked at it yet.

Many thanks to Grant for getting me going.
Eric




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 $B!!(B
$B!!!!!!(B     $BL$>5Bz9-9p"((B $B$4LBOG$JJ}$O:o=|$7$F$/$@$5$$!#(B
$B!!!!!!Ev9-9p$r<u?.5qH]$NJ}$O<!$N%a!<%k%"%I%l%9$K!L<u?.5qH]!M(B
$B!!!!$H$7$FAw?.$7$F$/$@$5$$!#$4LBOG$G$7$g$&$,$h$m$7$/$*4j$$$$$?$7$^$9!!(B
$B!!!!!!!!(B  bluelandok@yahoo.co.jp
 $B!!!!!!HNGd<T!!%.%U%H!!(B
       $B=j:_CO!!5~ETI\>kM[;T;{ED#8!]#2(B
       $BBeI=<T!!;3K\$7$*$j!!!!(B
$B!!!!!!!!!!!!!!!!(BTEL  0774-56-6428

$B!!!!!!!!!!!!!!(B
$B!!!!!!!!!!!!(B $B?'!9$J%M%C%H%S%8%M%9$KLB$C$F$$$^$;$s$+!#(B
$B!!!!!!!!!!!!0i;yEy$KB?K;$J=w@-!"2HDm$G=PMh$k;E;v$r$*5a$a$NJ}!"(B
$B!!!!!!!!!!!!B(<}F~$K$D$J$,$k(B $B%S%8%M%9%^%s$NI{6H$K%T%C%?%j!&!&!&(B
$B!!!!!!!!!!!!!!;qK\6b$r$+$1$:$K2T$0!*5f6K$N%S%8%M%9$,$3$l$G$9!*!!(B
$B!!!!!!!!!!(Bhttp://goodmails.redirectme.net/$B!!!!!!!!!!(B          
              $B!!!!!!!!!!!!!!(B  
      
          


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ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 3/26/2004 3:23:54 AM
Engine/Pattern = 6.860-1001/1.837.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


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Subject: [parisc-linux] HP 9000 Visualize C180 Workstation display does not
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Hi!

I recently bought a HP 9000 Visualize C180 workstation from a vendor on eBay
and EVC to VGA Video Adapter Cable from another vendor. Both claim that Non
DOA on arrival.

The workstation appears to boot properly but no display appears. Has any one
come across this situation.

Please help.

Best Regards
pms



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Hi!

I recently bought a HP 9000 Visualize C180 workstation from a vendor on eBay
and EVC to VGA Video Adapter Cable from another vendor. Both claim that Non
DOA on arrival.

The workstation appears to boot properly but no display appears. Has any one
come across this situation.

Please help.

Best Regards
pms



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"Prakash Shenoy" <mpshenoy@vsnl.com> writes:

> Hi!
> 
> I recently bought a HP 9000 Visualize C180 workstation from a vendor on eBay
> and EVC to VGA Video Adapter Cable from another vendor. Both claim that Non
> DOA on arrival.
> 
> The workstation appears to boot properly but no display appears. Has any one
> come across this situation.
> 
> Please help.
> 
> Best Regards
> pms

 Do you have a keyboard plugged in?

Jim



From - Thu Nov 08 21:31:26 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 9000 Visualize C180 Workstation display does
	not appear.
Date: Thu, 25 Mar 2004 21:40:08 -0700
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On Thu, Mar 25, 2004 at 10:06:35PM -0500, Prakash Shenoy wrote:
> Hi!
> 
> I recently bought a HP 9000 Visualize C180 workstation from a vendor on eBay
> and EVC to VGA Video Adapter Cable from another vendor. Both claim that Non
> DOA on arrival.
> 
> The workstation appears to boot properly but no display appears. Has any one
> come across this situation.

Have you tried hitting <tab> key at power up?
That should let you cycle through the various supported
graphics modes.

Have you tried with a serial console?
disconnect the keyboard before doing this.

This is a FAQ but it's not in the parisc-linux FAQ.
If someone has a moment to submit a patch against
cvs.parisc-linux.org's web/src/faq/index.x I'll be
happy to edit/submit it.

thanks,
grant


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ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 3/26/2004 6:43:00 AM
Engine/Pattern = 6.860-1001/1.837.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


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From: mpshenoy@vsnl.com
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Yes. I have PS/2 keyboard and a mouse plugged in.



----- Original Message -----
From: James Morrison <ja2morri@csclub.uwaterloo.ca>
Date: Thursday, March 25, 2004 10:20 pm
Subject: Re: [parisc-linux] HP 9000 Visualize C180 Workstation display does not appear.

> 
> "Prakash Shenoy" <mpshenoy@vsnl.com> writes:
> 
> > Hi!
> > 
> > I recently bought a HP 9000 Visualize C180 workstation from a 
> vendor on eBay
> > and EVC to VGA Video Adapter Cable from another vendor. Both 
> claim that Non
> > DOA on arrival.
> > 
> > The workstation appears to boot properly but no display appears. 
> Has any one
> > come across this situation.
> > 
> > Please help.
> > 
> > Best Regards
> > pms
> 
> Do you have a keyboard plugged in?
> 
> Jim
> 
> 



From - Thu Nov 08 21:31:26 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] David S. Miller's patch fix: N4k: failled to mount /
	rw since initscripts-2.85-12
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--========/40561EAF00008738/mail.tiscali.be
Content-Type: text/plain; charset="ISO-8859-1"
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Hi all,

Here is the corresponding patch for 2.6.5-rc2-pa3:
--- linux-2.6.5-rc2-pa3/arch/parisc/kernel/sys_parisc32.c.orig	2004-03-01
07:47:39.000000000 +0100
+++ linux-2.6.5-rc2-pa3/arch/parisc/kernel/sys_parisc32.c	2004-03-26 17:15:41.300604464
+0100
@@ -651,14 +651,13 @@
 	if (err)
 		goto out;
 
-	if (!type_page) {
-		err = -EINVAL;
-		goto out;
+	if (type_page) {
+		is_smb = !strcmp((char *)type_page, SMBFS_NAME);
+		is_ncp = !strcmp((char *)type_page, NCPFS_NAME);
+	} else {
+		is_smb = is_ncp = 0;
 	}
 
-	is_smb = !strcmp((char *)type_page, SMBFS_NAME);
-	is_ncp = !strcmp((char *)type_page, NCPFS_NAME);
-
 	err = copy_mount_stuff_to_kernel((const void *)(unsigned long)data, &data_page);
 	if (err)
 		goto type_out;
==========><=========

hth,
    Joel

PS1: because of bad wraping of my webmail interface I also attach it, sorry.
PS2: let me know if somebody is still interested by the corresponding 2.4
patch?

----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr




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VIRUS ALERT

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kill the writer of this document!


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***** Attachment removed by F-Prot Antivirus *****

The attachment/message

website.pif

was a virus/worm/trojan. It was removed.

This message was generated by F-Prot Antivirus Mail Scanner.
--46885344--


--==IFJRGLKFGIR42934UHRUHIHD--


From - Thu Nov 08 21:31:26 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Eric Sproul <esproul@ntelos.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] gdth driver: selectively enable EISA/ISA/PCI
	support
Date: Fri, 26 Mar 2004 13:57:39 -0500
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--=-LOqsCaV7bXDNtGbYOngx
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Hi,
I'm new here, but I was encouraged to post the following patch which
helped me get the gdth driver to compile on a PA-RISC system.  The
original driver assumes that EISA/ISA/PCI are all enabled, but on
PA-RISC there is no ISA (8237A) support, so compilation broke trying to
implement ISA-style DMA (DMA_MODE_CASCADE).

The following patch breaks out the bus-dependent portions of the driver
and only enables them when the corresponding CONFIG_ option is set.  For
example, this allows the driver to compile when only CONFIG_PCI is set.

ftp://ftp.parisc-linux.org/patches/diff-2.6.5-gdth-01
This patch was written by Grant Grundler <grundler@parisc-linux.org> and
tested by me.  Attached is a 2.4.25 version of the patch which I created
from Grant's 2.6.5 original.  He gets all the credit. ;)

Cheers,
Eric



--=-LOqsCaV7bXDNtGbYOngx
Content-Disposition: attachment; filename=gdth-2.6-noisa.patch
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--- a/drivers/scsi/gdth.c	7 Feb 2004 14:02:43 -0000	1.8
+++ b/drivers/scsi/gdth.c	24 Mar 2004 17:19:06 -0000
@@ -401,16 +401,21 @@ static void gdth_copy_internal_data(int 
                                     char *buffer,ushort count);
 static int gdth_internal_cache_cmd(int hanum,Scsi_Cmnd *scp);
 static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive);
-
+#ifdef CONFIG_EISA
 static int gdth_search_eisa(ushort eisa_adr);
+static int gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha);
+#endif
+#ifdef CONFIG_ISA
 static int gdth_search_isa(ulong32 bios_adr);
+static int gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha);
+#endif
+#ifdef CONFIG_PCI
 static int gdth_search_pci(gdth_pci_str *pcistr);
+static int gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha);
+static void gdth_sort_pci(gdth_pci_str *pcistr, int cnt);
+#endif
 static void gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt, 
                             ushort vendor, ushort dev);
-static void gdth_sort_pci(gdth_pci_str *pcistr, int cnt);
-static int gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha);
-static int gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha);
-static int gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha);
 
 static void gdth_enable_int(int hanum);
 static int gdth_get_status(unchar *pIStatus,int irq);
@@ -617,8 +622,10 @@ static void gdth_munmap(void *addr) 
 #endif
 
 
+#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
 static unchar   gdth_drq_tab[4] = {5,6,7,7};            /* DRQ table */
 static unchar   gdth_irq_tab[6] = {0,10,11,12,14,0};    /* IRQ table */
+#endif
 static unchar   gdth_polling;                           /* polling if TRUE */
 static unchar   gdth_from_wait  = FALSE;                /* gdth_wait() */
 static int      wait_index,wait_hanum;                  /* gdth_wait() */
@@ -728,8 +735,11 @@ static int rescan = 0;
 static int virt_ctr = 0;
 /* shared access */
 static int shared_access = 1;
+
+#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
 /* enable support for EISA and ISA controllers */
 static int probe_eisa_isa = 0;
+#endif
 
 #ifdef MODULE
 #if LINUX_VERSION_CODE >= 0x02011A
@@ -744,7 +754,9 @@ MODULE_PARM(max_ids, "i");
 MODULE_PARM(rescan, "i");
 MODULE_PARM(virt_ctr, "i");
 MODULE_PARM(shared_access, "i");
+#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
 MODULE_PARM(probe_eisa_isa, "i");
+#endif
 MODULE_AUTHOR("Achim Leubner");
 #endif
 #if LINUX_VERSION_CODE >= 0x02040B
@@ -818,6 +830,7 @@ static void gdth_eval_mapping(ulong32 si
 
 /* controller search and initialization functions */
 
+#ifdef CONFIG_EISA
 GDTH_INITFUNC(static int, gdth_search_eisa(ushort eisa_adr))
 {
     ulong32 id;
@@ -834,8 +847,9 @@ GDTH_INITFUNC(static int, gdth_search_ei
 
     return 0;                                   
 }
+#endif
 
-
+#ifdef CONFIG_ISA
 GDTH_INITFUNC(static int, gdth_search_isa(ulong32 bios_adr))
 {
     void *addr;
@@ -850,8 +864,9 @@ GDTH_INITFUNC(static int, gdth_search_is
     }
     return 0;
 }
+#endif
 
-
+#ifdef CONFIG_PCI
 GDTH_INITFUNC(static int, gdth_search_pci(gdth_pci_str *pcistr))
 {
     ushort device, cnt;
@@ -872,6 +887,7 @@ GDTH_INITFUNC(static int, gdth_search_pc
                     PCI_DEVICE_ID_INTEL_SRC_XSCALE);
     return cnt;
 }
+#endif
 
 #if LINUX_VERSION_CODE >= 0x20363
 /* Vortex only makes RAID controllers.
@@ -1081,6 +1097,7 @@ GDTH_INITFUNC(static void, gdth_sort_pci
 }
 
 
+#ifdef CONFIG_EISA
 GDTH_INITFUNC(static int, gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha))
 {
     ulong32 retries,id;
@@ -1170,8 +1187,9 @@ GDTH_INITFUNC(static int, gdth_init_eisa
     }
     return 1;
 }
+#endif
 
-       
+#ifdef CONFIG_ISA
 GDTH_INITFUNC(static int, gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha))
 {
     register gdt2_dpram_str *dp2_ptr;
@@ -1268,8 +1286,9 @@ GDTH_INITFUNC(static int, gdth_init_isa(
     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
     return 1;
 }
+#endif
 
-
+#ifdef CONFIG_PCI
 GDTH_INITFUNC(static int, gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha))
 {
     register gdt6_dpram_str *dp6_ptr;
@@ -1677,6 +1696,7 @@ GDTH_INITFUNC(static int, gdth_init_pci(
 
     return 1;
 }
+#endif
 
 
 /* controller protocol functions */
@@ -4145,8 +4165,10 @@ GDTH_INITFUNC(void, internal_setup(char 
             virt_ctr = val;
         else if (!strncmp(argv, "shared_access:", 14))
             shared_access = val;
+#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
         else if (!strncmp(argv, "probe_eisa_isa:", 15))
             probe_eisa_isa = val;
+#endif
         else if (!strncmp(argv, "reserve_list:", 13)) {
             reserve_list[0] = val;
             for (i = 1; i < MAX_RES_ARGS; i++) {
@@ -4193,8 +4215,6 @@ GDTH_INITFUNC(int, gdth_detect(Scsi_Host
 {
     struct Scsi_Host *shp;
     gdth_ha_str *ha;
-    ulong32 isa_bios;
-    ushort eisa_slot;
     int i,hanum,cnt,ctr;
     unchar b;
     
@@ -4227,8 +4247,12 @@ GDTH_INITFUNC(int, gdth_detect(Scsi_Host
     gdth_polling = TRUE; b = 0;
     gdth_clear_events();
 
+#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
     /* As default we do not probe for EISA or ISA controllers */
-    if (probe_eisa_isa) {    
+    if (probe_eisa_isa) {
+	ulong32 isa_bios;
+	ushort eisa_slot;
+
         /* scanning for controllers, at first: ISA controller */
         for (isa_bios=0xc8000UL; isa_bios<=0xd8000UL; isa_bios+=0x8000UL) {
             dma_addr_t scratch_dma_handle;
@@ -4473,6 +4497,7 @@ GDTH_INITFUNC(int, gdth_detect(Scsi_Host
             }
         }
     }
+#endif
 
     /* scanning for PCI controllers */
 #if LINUX_VERSION_CODE < 0x2015C

--=-LOqsCaV7bXDNtGbYOngx
Content-Disposition: attachment; filename=gdth-2.4.25-noisa.patch
Content-Type: text/x-patch; name=gdth-2.4.25-noisa.patch; charset=
Content-Transfer-Encoding: 7bit

--- drivers/scsi/gdth.c.orig	2003-08-30 02:01:42.000000000 -0400
+++ drivers/scsi/gdth.c	2004-03-25 08:42:07.000000000 -0500
@@ -380,16 +380,21 @@
 static void gdth_copy_internal_data(Scsi_Cmnd *scp,char *buffer,ushort count);
 static int gdth_internal_cache_cmd(int hanum,Scsi_Cmnd *scp);
 static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive);
-
+#ifdef CONFIG_EISA
 static int gdth_search_eisa(ushort eisa_adr);
+static int gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha);
+#endif
+#ifdef CONFIG_ISA
 static int gdth_search_isa(ulong32 bios_adr);
+static int gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha);
+#endif
+#ifdef CONFIG_PCI
 static int gdth_search_pci(gdth_pci_str *pcistr);
+static int gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha);
+static void gdth_sort_pci(gdth_pci_str *pcistr, int cnt);
+#endif
 static void gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt, 
                             ushort vendor, ushort dev);
-static void gdth_sort_pci(gdth_pci_str *pcistr, int cnt);
-static int gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha);
-static int gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha);
-static int gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha);
 
 static void gdth_enable_int(int hanum);
 static int gdth_get_status(unchar *pIStatus,int irq);
@@ -589,8 +594,10 @@
 #endif
 
 
+#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
 static unchar   gdth_drq_tab[4] = {5,6,7,7};            /* DRQ table */
 static unchar   gdth_irq_tab[6] = {0,10,11,12,14,0};    /* IRQ table */
+#endif
 static unchar   gdth_polling;                           /* polling if TRUE */
 static unchar   gdth_from_wait  = FALSE;                /* gdth_wait() */
 static int      wait_index,wait_hanum;                  /* gdth_wait() */
@@ -687,6 +694,11 @@
 /* shared access */
 static int shared_access = 1;
 
+#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
+/* enable support for EISA and ISA controllers */
+static int probe_eisa_isa = 0;
+#endif
+
 #ifdef MODULE
 #if LINUX_VERSION_CODE >= 0x02011A
 /* parameters for modprobe/insmod */
@@ -700,6 +712,9 @@
 MODULE_PARM(rescan, "i");
 MODULE_PARM(virt_ctr, "i");
 MODULE_PARM(shared_access, "i");
+#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
+MODULE_PARM(probe_eisa_isa, "i");
+#endif
 MODULE_AUTHOR("Achim Leubner");
 #endif
 #if LINUX_VERSION_CODE >= 0x02040B
@@ -764,6 +779,7 @@
 
 /* controller search and initialization functions */
 
+#ifdef CONFIG_EISA
 GDTH_INITFUNC(static int, gdth_search_eisa(ushort eisa_adr))
 {
     ulong32 id;
@@ -780,8 +796,9 @@
 
     return 0;                                   
 }
+#endif
 
-
+#ifdef CONFIG_ISA
 GDTH_INITFUNC(static int, gdth_search_isa(ulong32 bios_adr))
 {
     void *addr;
@@ -796,8 +813,9 @@
     }
     return 0;
 }
+#endif
 
-
+#ifdef CONFIG_PCI
 GDTH_INITFUNC(static int, gdth_search_pci(gdth_pci_str *pcistr))
 {
     ushort device, cnt;
@@ -816,6 +834,7 @@
                     PCI_DEVICE_ID_INTEL_SRC);
     return cnt;
 }
+#endif
 
 #if LINUX_VERSION_CODE >= 0x20363
 /* Vortex only makes RAID controllers.
@@ -1024,6 +1043,7 @@
 }
 
 
+#ifdef CONFIG_EISA
 GDTH_INITFUNC(static int, gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha))
 {
     ulong32 retries,id;
@@ -1113,8 +1133,9 @@
     }
     return 1;
 }
+#endif
 
-       
+#ifdef CONFIG_ISA       
 GDTH_INITFUNC(static int, gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha))
 {
     register gdt2_dpram_str *dp2_ptr;
@@ -1211,8 +1232,9 @@
     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
     return 1;
 }
+#endif
 
-
+#ifdef CONFIG_PCI
 GDTH_INITFUNC(static int, gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha))
 {
     register gdt6_dpram_str *dp6_ptr;
@@ -1612,6 +1634,7 @@
 
     return 1;
 }
+#endif
 
 
 /* controller protocol functions */
@@ -3943,6 +3966,10 @@
             virt_ctr = val;
         else if (!strncmp(argv, "shared_access:", 14))
             shared_access = val;
+#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
+	else if (!strncmp(argv, "probe_eisa_isa:", 15))
+	    probe_eisa_isa = val;
+#endif
         else if (!strncmp(argv, "reserve_list:", 13)) {
             reserve_list[0] = val;
             for (i = 1; i < MAX_RES_ARGS; i++) {
@@ -3989,8 +4016,6 @@
 {
     struct Scsi_Host *shp;
     gdth_ha_str *ha;
-    ulong32 isa_bios;
-    ushort eisa_slot;
     int i,hanum,cnt,ctr;
     unchar b;
     
@@ -4023,6 +4048,12 @@
     gdth_polling = TRUE; b = 0;
     gdth_clear_events();
 
+#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
+    /* As default we do not probe for EISA or ISA controllers */
+    if (probe_eisa_isa) {
+       ulong32 isa_bios;
+       ushort eisa_slot;
+
     /* scanning for controllers, at first: ISA controller */
     for (isa_bios=0xc8000UL; isa_bios<=0xd8000UL; isa_bios+=0x8000UL) {
         if (gdth_ctr_count >= MAXHA) 
@@ -4241,6 +4272,7 @@
             gdth_enable_int(hanum);
         }
     }
+#endif
 
     /* scanning for PCI controllers */
 #if LINUX_VERSION_CODE >= 0x2015C

--=-LOqsCaV7bXDNtGbYOngx--



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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] asm-parisc/ide.h cleanup (there are no
	standard ports)
Date: Wed, 24 Mar 2004 14:43:43 +0100
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Hi,

Is this patch correct?

Regards,
Bartlomiej

 linux-2.6.5-rc2-bk3-root/include/asm-parisc/ide.h |   15 ++-------------
 1 files changed, 2 insertions(+), 13 deletions(-)

diff -puN include/asm-parisc/ide.h~parisc_no_default_ide_ports include/asm-parisc/ide.h
--- linux-2.6.5-rc2-bk3/include/asm-parisc/ide.h~parisc_no_default_ide_ports	2004-03-24 14:39:06.293991064 +0100
+++ linux-2.6.5-rc2-bk3-root/include/asm-parisc/ide.h	2004-03-24 14:39:33.400870192 +0100
@@ -41,19 +41,8 @@ static __inline__ void ide_init_hwif_por
 	hw->io_ports[IDE_IRQ_OFFSET] = 0;
 }
 
-static __inline__ void ide_init_default_hwifs(void)
-{
-#ifndef CONFIG_PCI
-	hw_regs_t hw;
-	int index;

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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] asm-parisc/ide.h cleanup (there are no
	standard ports)
Date: Sat, 27 Mar 2004 15:28:10 -0700
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On Wed, Mar 24, 2004 at 02:43:43PM +0100, Bartlomiej Zolnierkiewicz wrote:
> 
> Hi,
> 
> Is this patch correct?

It's not necessary.

> Regards,
> Bartlomiej
> 
>  linux-2.6.5-rc2-bk3-root/include/asm-parisc/ide.h |   15 ++-------------
>  1 files changed, 2 insertions(+), 13 deletions(-)
> 
> diff -puN include/asm-parisc/ide.h~parisc_no_default_ide_ports include/asm-parisc/ide.h
> --- linux-2.6.5-rc2-bk3/include/asm-parisc/ide.h~parisc_no_default_ide_ports	2004-03-24 14:39:06.293991064 +0100
> +++ linux-2.6.5-rc2-bk3-root/include/asm-parisc/ide.h	2004-03-24 14:39:33.400870192 +0100
> @@ -41,19 +41,8 @@ static __inline__ void ide_init_hwif_por
>  	hw->io_ports[IDE_IRQ_OFFSET] = 0;
>  }
>  
> -static __inline__ void ide_init_default_hwifs(void)
> -{
> -#ifndef CONFIG_PCI
> -	hw_regs_t hw;
> -	int index;
> -
> -	for(index = 0; index < MAX_HWIFS; index++) {
> -		ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, NULL);
> -		hw.irq = ide_default_irq(ide_default_io_base(index));
> -		ide_register_hw(&hw);
> -	}
> -#endif
> -}
> +/* There are no standard ports. */
> +static inline void ide_init_default_hwifs(void)	{ ; }

Note the "ifndef CONFIG_PCI" - we only support IDE behind PCI to date.
ie this function already is "empty" for parisc since PCI must be enabled
when IDE is enabled. Hypothetically someone could add an IDE card
to a parisc EISA bus (eg 725), not define PCI, and then run the IDE
in PIO mode since DMA is still kaputt behind our EISA IOMMU.


thanks,
grant



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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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Xref: news.gmane.org gmane.linux.ports.parisc:21212

Hello Grant,

Back to all with this pb

Grant Grundler wrote:
> On Sun, Mar 21, 2004 at 12:57:16PM -0700, Grant Grundler wrote:
> 
>>>Kernel Fault: Code=26 regs=10594380 (Addr=00000000)
>>
>>null ptr deref.
>>
>>...
>>
>>> IAOQ[0]: lasi700_probe+0x18c/0x1cc
>>> IAOQ[1]: lasi700_probe+0x190/0x1cc
>>> RP(r2): lasi700_probe+0x58/0x1cc
>>
>>IOAQ[0] is the offending instruction.

First of all this is my fault: for this b2k I used to compile the 2.6 kernel with b180 config :(
But I didn't notice that there was recently changes in this file.
To solve this pb I so had to add 'U2/Uturn I/O MMU' and also Zalon to make it bootable again (and finaly 'Lasi ethernet' to just 
have network access :) ).

> 
> 
> James Bottomley observed a problem with hppa_dma_ops
> not being set properly for his U2/Uturn box.
> This is likely the same problem.
> See ccio driver isn't claiming the chip when it should.
> 
That said, I am not able to link jejb with what I observe but here is the story.
The system boot but hang very quickly as soon as io rate increase as per a find of a file name :( (reproducible on request)
I then get mesg
arq->state 2
Badness in as_requeue_request at drivers/block/as-iosched.c:1479
Kernel addresses on the stack:
[snip]
[<10108c5c>] ret_from_kernel_thread+0x1c/0x24

I so added some printk as follow in  drivers/block/as-iosched.c
[snip]
static void as_requeue_request(request_queue_t *q, struct request *rq)
{
         struct as_data *ad = q->elevator.elevator_data;
         struct as_rq *arq = RQ_DATA(rq);

         if (arq) {
                 if (arq->state != AS_RQ_REMOVED) {
                         printk("arq->state %d\n", arq->state);
                         WARN_ON(1);
                 }

/* JSO */
                 printk("as_requeue_request will now set arq->state.\n");
/* JSO */
                 arq->state = AS_RQ_DISPATCHED;
/* JSO */
                 printk("as_requeue_request has just set arq->state.\n");
                 if (arq->io_context && arq->io_context->aic)
                         printk("as_requeue_request will now atomic_inc(&arq->io_context->aic->nr_dispatched).\n");
/* JSO */
                 if (arq->io_context && arq->io_context->aic)
                         atomic_inc(&arq->io_context->aic->nr_dispatched);
                 printk("finished if (arq).\n");
         } else
                 WARN_ON(blk_fs_request(rq)
                         && (!(rq->flags & (REQ_HARDBARRIER|REQ_SOFTBARRIER))) );

         printk("as_requeue_request will now list_add().\n");
         list_add(&rq->queuelist, ad->dispatch);
         printk("as_requeue_request has just list_add().\n");

         /* Stop anticipating - let this request get through */
         printk("as_requeue_request will now (as_antic_stop(%p)).\n", ad);
         as_antic_stop(ad);
         printk("as_requeue_request has just (as_antic_stop(%p)).\n", ad);
}
[snip]

And here is a sample of what I can grab from serial console when I trigger a find:
as_requeue_request will now set arq->state.
as_requeue_request has just set arq->state.
as_requeue_request will now atomic_inc(&arq->io_context->aic->nr_dispatched).
finished if (arq).
as_requeue_request will now list_add().
as_requeue_request has just list_add().
as_requeue_request will now (as_antic_stop(100b89a0)).
as_requeue_request has just (as_antic_stop(100b89a0)).
as_requeue_request will now set arq->state.
as_requeue_request has just set arq->state.
as_requeue_request will now atomic_inc(&arq->io_context->aic->nr_dispatched).
finished if (arq).
as_requeue_request will now list_add().
as_requeue_request has just list_add().
as_requeue_request will now (as_antic_stop(100b89a0)).
as_requeue_request has just (as_antic_stop(100b89a0)).
as_requeue_request will now set arq->state.
as_requeue_request has just set arq->state.
as_requeue_request will now atomic_inc(&arq->io_context->aic->nr_dispatched).
finished if (arq).
as_requeue_request will now list_add().
as_requeue_request has just list_add().
as_requeue_request will now (as_antic_stop(100b89a0)).
as_requeue_request has just (as_antic_stop(100b89a0)).
as_requeue_request will now set arq->state.
as_requeue_request has just set arq->state.
as_requeue_request will now atomic_inc(&arq->io_context->aic->nr_dispatched).
finished if (arq).
as_requeue_request will now list_add().
as_requeue_request has just list_add().
as_requeue_request will now (as_antic_stop(100b89a0)).
as_requeue_request has just (as_antic_stop(100b89a0)).
arq->state 2
Badness in as_requeue_request at drivers/block/as-iosched.c:1479
Kernel addresses on the stack:
  [<10124528>] printk+0x144/0x1c0
  [<101036bc>] dump_stack+0x18/0x24
  [<102276a0>] as_requeue_request+0x5c/0x17c
  [<1021e630>] elv_requeue_request+0x30/0x3c
  [<1023baf4>] scsi_request_fn+0x220/0x2bc
  [<1021e630>] elv_requeue_request+0x30/0x3c
  [<102212b8>] blk_insert_request+0xd8/0xf0
  [<1023a978>] scsi_queue_insert+0x6c/0xa0
  [<1023b7bc>] scsi_prep_fn+0xc4/0x1dc
  [<102368f8>] scsi_dispatch_cmd+0x118/0x22c
  [<1021e820>] elv_remove_request+0x34/0x44
  [<1023ba80>] scsi_request_fn+0x1ac/0x2bc
  [<102273f0>] as_next_request+0x44/0x54
  [<10228218>] as_work_handler+0x44/0x48
  [<101344e4>] worker_thread+0x1e4/0x280
  [<101200cc>] schedule+0x3f8/0x718
  [<101385f4>] kthread+0xdc/0xe4
  [<10108c5c>] ret_from_kernel_thread+0x1c/0x24

as_requeue_request will now set arq->state.
as_requeue_request has just set arq->state.
as_requeue_request will now atomic_inc(&arq->io_context->aic->nr_dispatched).
finished if (arq).
as_requeue_request will now list_add().
as_requeue_request has just list_add().
as_requeue_request will now (as_antic_stop(100b89a0)).
as_requeue_request has just (as_antic_stop(100b89a0)).

as_requeue_request will now set arq->state.
as_requeue_request has just set arq->state.
as_requeue_request will now atomic_inc(&arq->io_context->aic->nr_dispatched).
finished if (arq).
as_requeue_request will now list_add().
as_requeue_request has just list_add().
as_requeue_request will now (as_antic_stop(100b8aa0)).
as_requeue_request has just (as_antic_stop(100b8aa0)).
as_requeue_request will now set arq->state.
as_requeue_request has just set arq->state.
as_requeue_request will now atomic_inc(&arq->io_context->aic->nr_dispatched).
finished if (arq).
as_requeue_request will now list_add().
as_requeue_request has just list_add().
as_requeue_request will now (as_antic_stop(100b8aa0)).
as_requeue_request has just (as_antic_stop(100b8aa0)).
as_requeue_request will now set arq->state.
as_requeue_request has just set arq->state.
as_requeue_request will now atomic_inc(&arq->io_context->aic->nr_dispatched).
finished if (arq).
as_requeue_request will now list_add().
as_requeue_request has just list_add().
as_requeue_request will now (as_antic_stop(100b8aa0)).
as_requeue_request has just (as_antic_stop(100b8aa0)).
as_requeue_request will now set arq->state.
as_requeue_request has just set arq->state.
as_requeue_request will now atomic_inc(&arq->io_context->aic->nr_dispatched).
finished if (arq).
as_requeue_request will now list_add().
as_requeue_request has just list_add().
as_requeue_request will now (as_antic_stop(100b8aa0)).
as_requeue_request has just (as_antic_stop(100b8aa0)).
as_requeue_request will now set arq->state.
as_requeue_request has just set arq->state.
as_requeue_request will now atomic_inc(&arq->io_context->aic->nr_dispatched).
finished if (arq).
as_requeue_request will now list_add().
as_requeue_request has just list_add().
as_requeue_request will now (as_antic_stop(100b8aa0)).
as_requeue_request has just (as_antic_stop(100b8aa0)).
[snip]

it seems to be infinite loop :(

Any idea?

Thanks in advance,
     Joel




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Subject: Re: [parisc-linux] [PATCH] asm-parisc/ide.h cleanup (there are no
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On Saturday 27 of March 2004 23:28, Grant Grundler wrote:
> On Wed, Mar 24, 2004 at 02:43:43PM +0100, Bartlomiej Zolnierkiewicz wrote:
> > Hi,
> >
> > Is this patch correct?
>
> It's not necessary.

Well, I know but I have other cleanups incremental to this one. :-)

> > Regards,
> > Bartlomiej
> >
> >  linux-2.6.5-rc2-bk3-root/include/asm-parisc/ide.h |   15 ++-------------
> >  1 files changed, 2 insertions(+), 13 deletions(-)
> >
> > diff -puN include/asm-parisc/ide.h~parisc_no_default_ide_ports
> > include/asm-parisc/ide.h ---
> > linux-2.6.5-rc2-bk3/include/asm-parisc/ide.h~parisc_no_default_ide_ports	
> >2004-03-24 14:39:06.293991064 +0100 +++
> > linux-2.6.5-rc2-bk3-root/include/asm-parisc/ide.h	2004-03-24
> > 14:39:33.400870192 +0100 @@ -41,19 +41,8 @@ static __inline__ void
> > ide_init_hwif_por
> >  	hw->io_ports[IDE_IRQ_OFFSET] = 0;
> >  }
> >
> > -static __inline__ void ide_init_default_hwifs(void)
> > -{
> > -#ifndef CONFIG_PCI
> > -	hw_regs_t hw;
> > -	int index;
> > -
> > -	for(index = 0; index < MAX_HWIFS; index++) {
> > -		ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, NULL);
> > -		hw.irq = ide_default_irq(ide_default_io_base(index));
> > -		ide_register_hw(&hw);
> > -	}
> > -#endif
> > -}
> > +/* There are no standard ports. */
> > +static inline void ide_init_default_hwifs(void)	{ ; }
>
> Note the "ifndef CONFIG_PCI" - we only support IDE behind PCI to date.
> ie this function already is "empty" for parisc since PCI must be enabled

It is also NOP for #ifdef CONFIG_PCI (that is the reason for this patch BTW)
since both ide_default_io_base() and ide_default_irq() are defined as '0'.

> when IDE is enabled. Hypothetically someone could add an IDE card
> to a parisc EISA bus (eg 725), not define PCI, and then run the IDE
> in PIO mode since DMA is still kaputt behind our EISA IOMMU.

That would require (at least) passing "ide=base[,ctl,[irq]]" kernel parameter.

Regards,
Bartlomiej



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On Sun, Mar 28, 2004 at 12:24:57AM +0100, Bartlomiej Zolnierkiewicz wrote:
> Well, I know but I have other cleanups incremental to this one. :-)

Ah ok - go for it.

> It is also NOP for #ifdef CONFIG_PCI (that is the reason for this patch BTW)
> since both ide_default_io_base() and ide_default_irq() are defined as '0'.

Ok - I didn't look any deeper.

> > Hypothetically someone could add an IDE card
> > to a parisc EISA bus (eg 725), not define PCI, and then run the IDE
> > in PIO mode since DMA is still kaputt behind our EISA IOMMU.
> 
> That would require (at least) passing "ide=base[,ctl,[irq]]" kernel parameter.

I was told offline my hypothetical example is in fact hypothetical.
parisc won't build with IDE unless PCI is defined. I haven't tried.

thanks,
grant


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Subject: Re: [parisc-linux] [PATCH] asm-parisc/ide.h cleanup (there are no
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> I was told offline my hypothetical example is in fact hypothetical.
> parisc won't build with IDE unless PCI is defined. I haven't tried.

not exactly. what i meant is, without this patch, if you built pa with
ide enabled but pci disabled you will get a compilation error.

i think this patch looks ok too. will commit to our tree and let willy
propogate upstream :)

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Sunday 28 of March 2004 00:49, Grant Grundler wrote:
> On Sun, Mar 28, 2004 at 12:24:57AM +0100, Bartlomiej Zolnierkiewicz wrote:
> > Well, I know but I have other cleanups incremental to this one. :-)
>
> Ah ok - go for it.
>
> > It is also NOP for #ifdef CONFIG_PCI (that is the reason for this patch
> > BTW) since both ide_default_io_base() and ide_default_irq() are defined
> > as '0'.
>
> Ok - I didn't look any deeper.
>
> > > Hypothetically someone could add an IDE card
> > > to a parisc EISA bus (eg 725), not define PCI, and then run the IDE
> > > in PIO mode since DMA is still kaputt behind our EISA IOMMU.
> >
> > That would require (at least) passing "ide=base[,ctl,[irq]]" kernel
> > parameter.
>
> I was told offline my hypothetical example is in fact hypothetical.
> parisc won't build with IDE unless PCI is defined. I haven't tried.

Ok, I will push this to Linus.

Thanks,
Bartlomiej



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Hello list.

I have acquired an HP 9000 K class server, model K250.

I woud like to install Linux on it but I am having a spot of trouble getting
it to boot from a Linux cd.

I've been using Linux on x86 for a couple of years but this is my first
parisc computer and I don't know much about the platform yet.

I've done enough research in the last week to know I need a "-PDC-" image or
a kernel after, what was it, 2.4.19?

Anyway, I've tried booting a couple of iso's, and they both hang at the
point where the serial driver loads.

If anyone could suggest a handling I would very much appreciate it.

Data follows:

The first iso was palinux-2.4.21-pa6-20030718-netinst.iso which was
downloaded from http://www.pateam.org/cd-images/testing/ and it produces:


Firmware Version  36.51

Duplex Console IO Dependent Code (IODC) revision 4

----------------------------------------------------------------------------
--
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
----------------------------------------------------------------------------
--

  Processor   Speed            State           CoProcessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------
      0      160  MHz   Active                 Functional            1 MB
      1      160  MHz   Idle                   Functional            1 MB

  Central Bus Speed (in MHz)  :        120
  Available Memory            :     524284  KB
  Good Memory Required        :      42240  KB

   Primary boot path:    10/12/5.2      (dec)
   Alternate boot path:  10/0.6         (dec)
   Console path:         10/4/0.0       (dec)
   Keyboard path:        10/12/7.0      (dec)

CPU 0
  WARNING:  Memory has been initialized, but not tested as a result of
            FASTBOOT being enabled.  To test memory, use the FASTBOOT
            command in the Configuration menu and reboot the system.


Processor is starting autoboot process.

To discontinue, press any key within 10 seconds.

10 seconds expired.
Proceeding...

Trying Primary Boot Path
------------------------

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002

Boot image contains:
    0/vmlinux32 4046404 bytes @ 0x458800
    0/vmlinux64 5358339 bytes @ 0x834800
    0/ramdisk 2660614 bytes @ 0xd51000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'ramdisk_size=8192 root=/dev/ram console=ttyS0
TERM=vt1
02 palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Selected ramdisk: /ramdisk from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing
32-bit ke
rnelELF32 executable
Entry 00100138 first 00100000 n 5
Segment 0 load 00100000 size 2238020 mediaptr 0x1000
Segment 1 load 00324000 size 726600 mediaptr 0x224000
Segment 2 load 003d8000 size 8192 mediaptr 0x2d6000
Segment 3 load 003e0000 size 32768 mediaptr 0x2d8000
Segment 4 load 0040a33c size 114976 mediaptr 0x2e033c
Loading ramdisk 2660614 bytes @ 1fd65000...
Branching to kernel entry point 0x00100138.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.21-32 (root@k2000) (gcc version 3.0.4) #1 Fri Jul 18
01:59:14
CEST 2003
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005a40 00000491 00000000 00000002 1c77f42d 100000f1 00000008
000000b2 00
0000b2
vers  00000205
CPUID vers 14 rev 9 (0x000001c9)
model 9000/802/K250
Total Memory: 512 Mb
initrd: 2fd65000-2ffee906
initrd: reserving 1fd65000-1ffee906 (mem_max 20000000)
pagetable_init
On node 0 totalpages: 131072
zone(0): 131072 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: ramdisk_size=8192 root=/dev/ram console=ttyS0
TERM=vt102 pa
lo_kernel=0/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 319.48 BogoMIPS
Memory: 512188k available
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
2. U2-IOA BC GSC+ Port (7) at 0xf103f000 [8/63], versions 0x501, 0x1, 0xc
3. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb
4. Mohawk Core FW-SCSI (4) at 0xf1800000 [10/0], versions 0x44, 0x0, 0x89
5. Gecko BOA BC GSC+ Port (7) at 0xf1804000 [10/4], versions 0x500, 0x0, 0xc
6. Sahp Baat Kiuh AP/MUX (5) at 0xf1900000 [10/4/0], versions 0x44, 0x0, 0xd
7. Wizard SCSI (4) at 0xf1904000 [10/4/4], versions 0x4, 0x0, 0x3b
8. unknown device (2) at 0xf1908000 [10/4/8], versions 0x4, 0x0, 0x5f
9. Interphase NIO-100BaseTX (4) at 0xf1910000 [10/4/16], versions 0x4, 0x0,
0x38
2
10. Gecko BOA BC HP-PB Port (7) at 0xf193c000 [10/4/60], versions 0x103,
0x0, 0x
c
11. Shrike Add-on FW-SCSI (4) at 0xf1808000 [10/8], versions 0x14, 0x1, 0x89
12. Mohawk Core BA (11)t 0xffd00000 [10/12], versions 0x44, 0x0, 0x81,
addition
al addresses: 0xffd0c000 0xffc00000
13. Mohawk Core Centronics (10) at 0xffd02000 [10/12/0], versions 0x44, 0x0,
0x7
4,  additional addresses: 0xffd01000 0xffd03000
14. Mohawk Core SCSI (10) at 0xffd06000 [10/12/5], versions 0x44, 0x0, 0x82
15. Mohawk Core LAN (802.3) (10) at 0xffd07000 [10/12/6], versions 0x44,
0x0, 0x
8a
16. Mohawk Core PS/2 Port (10) at 0xffd08000 [10/12/7], versions 0x44, 0x0,
0x84

17. Mohawk Core PS/2 Port (10) at 0xffd08100 [10/12/8], versions 0x44, 0x0,
0x84

18. U2-IOA BC GSC+ Port (7) at 0xf183f000 [10/63], versions 0x501, 0x1, 0xc
19. Mohawk 160 U 1M DC3- (K250) (0) at 0xfffa0000 [32], versions 0x5a4, 0x0,
0x4

20. Mohawk 160 U 1M DC3- (K250) (0) at 0xfffa2000 [34], versions 0x5a4, 0x0,
0x4

21. Memory (1) at 0xfffb1000 [49], versions 0x53, 0x0, 0x9
CONFIG_SMP=n  ignoring additional CPUs
CPU(s): 1 x PA8000 (PCX-U) at 160.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
LED display at ffd0c000 registered
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch support not available.
Starting kswapd
Journalled Block Device driver loaded
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
STI GSC/PCI graphics driver version 0.9
pty: 256 Unix98 ptys configured
PDC Software Console version 0.3 (2001-11-17), christoph.plattner@gmx.at
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI en
abled

Stack Dump:
 2fff8740:  0006000f 844650f4 eec9f818 4223287a
 2fff8730:  7764fc0c 101635c4 00000001 0000000f
 2fff8720:  103eee6b 10337810 10337b68 0000000f
 2fff8710:  10337810 fffff14b 10337810 103f3010
 2fff8700:  0000000f f000011c f0000124 f0001580
 2fff86f0:  0000021e 103a2dd4 00000200 0000000f

Kernel addresses on the stack:
 [<101635c4>]  [<10122e6c>]  [<1011e1e4>]  [<101d52a0>]
 [<101002ac>]  [<10108c4c>]  [<10108cf4>]  [<10102538>]
 [<1011d9e0>]  [<10163008>]  [<1011db64>]  [<101635c4>]
 [<1011ded4>]  [<1010029c>]  [<10163858>]  [<101215f8>]


Kernel Fault: Code=26 regs=2fff8740 (Addr=0000000c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001111 Not tainted
r00-03  00000000 10334010 103a2dd4 10400810
r04-07  00000008 103ff010 00000013 0000002f
r08-11  103c34 10337bac 10000080 10337810
r12-15  000000f2 000000fa f0140000 00000007
r16-19  f0001580 f0000124 f000011c 00000000
r20-23  00000002 00000000 10400928 00000000
r24-27  00000093 00000002 00000093 10324010
r28-31  00000000 0000002f 2fff8740 103a2d88
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10110d58 10110d5c
 IIR: 0e781096    ISR: 00000000  IOR: 0000000c
 CPU:        0   CR30: 2fff8000 CR31: 103e0000
 ORIG_R28: 00000000


The second iso was livecd-hppa-beta_04.iso downloaded from
http://gentoo.chem.wisc.edu/gentoo/experimental/hppa/livecd/ which produced
the following output:

Firmware Version  36.51

Duplex Console IO Dependent Code (IODC) revision 4

----------------------------------------------------------------------------
--
   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserved
----------------------------------------------------------------------------
--

  Processor   Speed            State           CoProcessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------
      0      160  MHz   Active                 Functional            1 MB
      1      160  MHz   Idle                   Functional            1 MB

  Central Bus Speed (in MHz)  :        120
  Available Memory            :     524284  KB
  Good Memory Required        :      42240  KB

   Primary boot path:    10/12/5.2      (dec)
   Alternate boot path:  10/0.6         (dec)
   Console path:         10/4/0.0       (dec)
   Keyboard path:        10/12/7.0      (dec)

CPU 0
  WARNING:  Memory has been initialized, but not tested as a result of
            FASTBOOT being enabled.  To test memory, use the FASTBOOT
            command in the Configuration menu and reboot the system.


Processor is starting autoboot process.

To discontinue, press any key within 10 seconds.

10 seconds expired.
Proceeding...

Trying Primary Boot Path
------------------------

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.2 root@b180l.da-kot Tue Apr  8 12:43:07 CEST 2003

Boot image contains:
    0/vmlinux32 3308755 bytes @ 0x17d7800
    0/ramdisk 1522047 bytes @ 0xf800

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: ' TERM=linux root=/dev/ram0 init=/linuxrc
console=ttyS0
 palo_kernel=0/vmlinux-32'
Selected kernel: /vmlinux-32 from partition 0
Selected ramdisk: initrd from partition 0
ELF32 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 1873764 mediaptr 0x1000
Segment 1 load 002ca000 size 623560 mediaptr 0x1cb000
Segment 2 load 00364000 size 8192 mediaptr 0x264000
Segment 3 load 00368000 size 32768 mediaptr 0x266000
Segment 4 load 00390324 size 100976 mediaptr 0x26e324
Loading ramdisk 1522047 bytes @ 1fe7b000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.20-pa32 (root@b180l.da-kot) (gcc version 3.2.2) #1 Fri May
9 2
0:31:04 Local time zone must be set--see zic manua
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel hs started...
Determining PDC firmware type: System Map.
model 00005a40 00000491 00000000 00000002 1c77f42d 100000f1 00000008
000000b2 00
0000b2
vers  00000205
CPUID vers 14 rev 9 (0x000001c9)
model 9000/802/K250
Total Memory: 512 Mb
initrd: 2fe7b000-2ffee97f
initrd: reserving 1fe7b000-1ffee97f (mem_max 20000000)
pagetable_init
On node 0 totalpages: 131072
zone(0): 131072 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line:  TERM=linux root=/dev/ram0 init=/linuxrc console=ttyS0
palo
_kernel=0/vmlinux-32
Console: colour dummy device 160x64
Calibrating delay loop... 319.48 BogoMIPS
Memory: 513804k available
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
2. U2-IOA BC GSC+ Port (7) at 0xf103f000 [8/63], versions 0x501, 0x1, 0xc
3. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb
4. Mohawk Core FW-SCSI (4) at 0xf1800000 [10/0], versions 0x44, 0x0, 0x89
5. Gecko BOA BC GSC+ Port (7) at 0xf1804000 [10/4], versions 0x500, 0x0, 0xc
6. Sahp Baat Kiuh AP/MUX (5) at 0xf1900000 [10/4/0], versions 0x44, 0x0, 0xd
7. Wizard SCSI (4) at 0xf1904000 [10/4/4], versions 0x4, 0x0, 0x3b
8. unknown device (2) at 0xf1908000 [10/4/8], versions 0x4, 0x0, 0x5f
9. Interphase NIO-100BaseTX (4) at 0xf1910000 [10/4/16], versions 0x4, 0x0,
0x38
2
10. Gecko BOA BC HP-PB Port (7) at 0xf193c000 [10/4/60], versions 0x103,
0x0, 0x
c
11. Shrike Add-on FW-SCSI (4) at 0xf1808000 [10/8], versions 0x14, 0x1, 0x89
12. Mohawk Core BA (11) at 0xffd00000 [10/12], versions 0x44, 0x0, 0x81,
additi
onal addresses: 0xffd0c000 0xffc00000
13. Mohawk Core Centronics (10) at 0xffd02000 [10/12/0], sions 0x44, 0x0,
0x74,
 additional addresses: 0xffd01000 0xffd03000
14. Mohawk Core SCSI (10) at 0xffd06000 [10/12/5], versions 0x44, 0x0, 0x82
15. Mohawk Core LAN (802.3) (10) at 0xffd07000 [10/12/6], versions 0x44,
0x0, 0x
8a
16. Mohawk Core PS/2 Port (10) at 0xffd08000 [10/12/7], versions 0x44, 0x0,
0x84

17. Mohawk Core PS/2 Port (10) at 0xffd08100 [10/12/8], versions 0x44, 0x0,
0x84

18. U2-IOA BC GSC+ Port (7) at 0xf183f000 [10/63], versions 0x501, 0x1, 0xc
19. Mohawk 160 U 1M DC3- (K250) (0) at 0xfffa0000 [32], versions 0x5a4, 0x0,
0x4

20. Mohawk 160 U 1M DC3- (K250) (0) at 0xfffa2000 [34], versions 0x5a4, 0x0,
0x4

21. Memory (1) at 0xfffb1000 [49], versions 0x53, 0x0, 0x9
CONFIG_SMP=n  ignoring additional CPUs
CPU(s): 1 x PA8000 (PCX-U) at 160.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
LED display at ffd0c000 registered
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch support not available.
Starting kswapd
Journalled Block Device driver loaded
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI en
abled

Stack Dump:
 2fe6c700:  0006000f f000011c f0000124 f0001580
 2fe6c6f0:  00000007 101631cc 10382308 102ddb48
 2fe6c6e0:  00008124 1038801c 00000000 10387810
 2fe6c6d0:  10364000 102dd810 00000001 102ddfa0
 2fe6c6c0:  102ddfa0 00000000 102aa000 1038063c
 2fe6b0:  00000000 1033dfc0 000000bc 102dd810

Kernel addresses on the stack:
 [<101631cc>]  [<10164c70>]  [<1011e208>]  [<10100174>]
 [<10108c4c>]  [<10108cf4>]  [<101395d8>]  [<1010b55c>]
 [<1013666c>]  [<1011db30>]  [<10137024>]  [<1011dee0>]
 [<10100164>]  [<101631cc>]  [<10121510>]

Kernel Fault: Code=26 regs=2fe6c700 (Addr=0000000c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001111 Not tainted
r00-03  00000000 102da010 1033dfc0 10389010
r04-07  00000013 00000000 10387810 0000002f
r08-11  102ebc84 102ebc84 102dd810 102da810
r12-15  000000f2 000000fa f0140000 00000007
r16-19  f0001580 f0000124 f000011c 00000000
r20-23  00000002 00000000 10389510 00000000
r24-27  00000093 00000002 00000093 102ca010
r28-31  00000000 0000002f 2fe6c700 1033df74
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101109e8 101109ec
 IIR: 0e781096    ISR: 00000000  IOR: 0000000c
 CPU:        0   CR30: 2fe6c000 CR31: 10368000
 ORIG_R28: 30313233



Addidtional data:  I don't have a keyboard or a mouse plugged into it -
access is through the serial console.
Thanks for your time.

Cheers,  Wayne



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From - Thu Nov 08 21:31:28 2018
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Subject: Re: [parisc-linux] Trouble booting hp9000 k class model k250
	(shortish'd)
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According to:
http://www.pateam.org/list.html

You need to use PDC console.

Then, following the howto at
http://www.pateam.org/doc.html
(not mentioning the numerous threads about this on this list)

you'd have found that you just have to use the latest netinst (as you =20=

did) and tell PALO during bootup to change the console to /dev/ttyB0

All relevant links can be found here
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-March/=20
019399.html

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/

Le dimanche, 28 mars 2004, =E0 14:23 Europe/Paris, Wayne Rooney a =E9crit =
:

>
> Hello list.
>
> I have acquired an HP 9000 K class server, model K250.
>
> I woud like to install Linux on it but I am having a spot of trouble =20=

> getting
> it to boot from a Linux cd.
>
> I've been using Linux on x86 for a couple of years but this is my =
first
> parisc computer and I don't know much about the platform yet.
>
> I've done enough research in the last week to know I need a "-PDC-" =20=

> image or
> a kernel after, what was it, 2.4.19?
>
> Anyway, I've tried booting a couple of iso's, and they both hang at =
the
> point where the serial driver loads.
>
> If anyone could suggest a handling I would very much appreciate it.
>
> Data follows:
>
> The first iso was palinux-2.4.21-pa6-20030718-netinst.iso which was
> downloaded from http://www.pateam.org/cd-images/testing/ and it =20
> produces:
>
>



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On Sat, Mar 27, 2004 at 04:21:39PM -0800, Randolph Chung wrote:
> > I was told offline my hypothetical example is in fact hypothetical.
> > parisc won't build with IDE unless PCI is defined. I haven't tried.
> 
> not exactly. what i meant is, without this patch, if you built pa with
> ide enabled but pci disabled you will get a compilation error.
> 
> i think this patch looks ok too. will commit to our tree and let willy
> propogate upstream :)

I think Bart's patch already made it into Linus' tree ;-)  Whatever;
I'll push it to Linus after 2.6.5 comes out if it hasn't already made
it upstream.  Thanks, guys.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Subject: [parisc-linux] spinlock align code triggering bug in gcc?
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I'm not yet 100% sure about this one, but it seems like with the new
self-aligning spinlock code in the kernel, if you build the kernel with
hppa64-linux-gcc 3.3.3, the kernel generates incorrectly aligned code
when you bulid with -O2. You see something like this...

legolas[11:47] linux-2.6% make drivers/block/loop.o
  CC      drivers/block/loop.o
{standard input}: Assembler messages:
{standard input}:3701: Error: Field not properly aligned [8] (-183).
{standard input}:3701: Error: Invalid operands
make[1]: *** [drivers/block/loop.o] Error 1
make: *** [drivers/block/loop.o] Error 2

this does not happen with the 32-bit gcc-3.3.3. also with -O1 it is ok.
It looks like while gcc tries to inline all the spinlock stuff it gets
confused about the offsets? The attached test case illustrates the
problem. If you build with:

hppa64-linux-gcc -O2 -c foo.c, you'll get the same kind of error.

can someone check this against other versions of gcc? i cannot reach
gcc-bugzilla right now...

thanks
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

--KFztAG8eRSV9hGtP
Content-Type: text/x-csrc; charset=us-ascii
Content-Disposition: attachment; filename="foo.c"

#define __PA_LDCW_ALIGNMENT 16
#define __ldcw_align(a) ({ \
  unsigned long __ret = (unsigned long) a;                              \
  __ret = (__ret + __PA_LDCW_ALIGNMENT - 1) & ~(__PA_LDCW_ALIGNMENT - 1); \
  (volatile unsigned int *) __ret;                                      \
})

#define __ldcw(a) ({ \
        unsigned __ret; \
        __asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a)); \
        __ret; \
})

typedef struct {
  volatile unsigned int lock[4];
} spinlock_t;

struct semaphore
{
  spinlock_t sentry;
  int count;
};

struct loop_device
{
  struct loop_func_table *lo_encryption;
  struct semaphore lo_ctl_mutex;
};

static int max_loop = 8;
static struct loop_device *loop_dev;

void __down (struct semaphore *sem);
void __up (struct semaphore *sem);

static inline void _raw_spin_lock (spinlock_t * x)
{
  volatile unsigned int *a = __ldcw_align(x);

  while (__ldcw(a) == 0)
    while (*a == 0);
}

static inline void _raw_spin_unlock (spinlock_t * x)
{
  volatile unsigned int *a = __ldcw_align(x);
  *a = 1;
}

inline void down (struct semaphore *sem)
{
  _raw_spin_lock (&sem->sentry);
  if (sem->count > 0) { sem->count--; }
  else { __down (sem); }
  _raw_spin_unlock (&sem->sentry);
}

inline void up (struct semaphore *sem)
{
  _raw_spin_lock (&sem->sentry);
  if (sem->count < 0) { __up (sem); }
  else { sem->count++; }
  _raw_spin_unlock (&sem->sentry);
}

int
loop_unregister_transfer (int number)
{
  struct loop_device *lo = &loop_dev[0];

  for (lo = &loop_dev[0]; lo < &loop_dev[max_loop]; lo++)
    {
      down (&lo->lo_ctl_mutex);

      if (lo->lo_encryption == 0)
	loop_release_xfer (lo);

      up (&lo->lo_ctl_mutex);
    }

  return 0;
}

--KFztAG8eRSV9hGtP--


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On Sun, 28 Mar 2004 12:32:11 -0800
"Randolph Chung" <randolph@tausq.org> wrote:

> 
> can someone check this against other versions of gcc? i cannot reach
> gcc-bugzilla right now...
> 

[varenet@npyu ~]% hppa64-linux-gcc -O2 -c foo.c
[varenet@npyu ~]% ls foo*
foo.c foo.o
[varenet@npyu ~]% hppa64-linux-gcc -v
Reading specs from
/usr/local/palinux/lib/gcc-lib/hppa64-linux/3.0.4/specs Configured with:
/Users/varenet/palinux/xc/src/gcc/configure
--host=powerpc-apple-darwin6.1 --build=powerpc-apple-darwin6.1
--target=hppa64-linux --disable-shared --disable-nls
--enable-languages=c --prefix=/usr/local/palinux Thread model: single
gcc version 3.0.4

Good old 3.0.4 seems pretty reliable ;)

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/


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Subject: Re: [parisc-linux] spinlock align code triggering bug in gcc?
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> I'm not yet 100% sure about this one, but it seems like with the new
> self-aligning spinlock code in the kernel, if you build the kernel with
> hppa64-linux-gcc 3.3.3, the kernel generates incorrectly aligned code
> when you bulid with -O2. You see something like this...
> 
> legolas[11:47] linux-2.6% make drivers/block/loop.o
>   CC      drivers/block/loop.o
> {standard input}: Assembler messages:
> {standard input}:3701: Error: Field not properly aligned [8] (-183).
> {standard input}:3701: Error: Invalid operands

Take a look at the assembler output for the above line.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> > I'm not yet 100% sure about this one, but it seems like with the new
> > self-aligning spinlock code in the kernel, if you build the kernel with
> > hppa64-linux-gcc 3.3.3, the kernel generates incorrectly aligned code
> > when you bulid with -O2. You see something like this...
> > 
> > legolas[11:47] linux-2.6% make drivers/block/loop.o
> >   CC      drivers/block/loop.o
> > {standard input}: Assembler messages:
> > {standard input}:3701: Error: Field not properly aligned [8] (-183).
> > {standard input}:3701: Error: Invalid operands
> 
> Take a look at the assembler output for the above line.

I think this is a coding problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> > legolas[11:47] linux-2.6% make drivers/block/loop.o
> >   CC      drivers/block/loop.o
> > {standard input}: Assembler messages:
> > {standard input}:3701: Error: Field not properly aligned [8] (-183).
> > {standard input}:3701: Error: Invalid operands
> 
> Take a look at the assembler output for the above line.

i did, it's a "ldd -183(%r3), %rN" (i don't remember the target register
right now)

with -g it is pointing to the if () comparision inside the function. but
removing the up()/down() calls makes the error go away. removing the
loop and making it only operate on loop_dev[0] also makes the error go
away.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> I think this is a coding problem.

that's what i thought too initially, but there are no special things 
in the structure that makes it unaligned. pls take a look at the test 
program i attached... the structure only has a spinlock, an int and a 
pointer.  where the heck does it get 183 from (or 23 in the test 
program)? :) i'm guessing it inlined the __ldcw_align() and did some 
constant folding to do the alignment and then the offset becomes wrong?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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> > > {standard input}:3701: Error: Field not properly aligned [8] (-183).
> > > {standard input}:3701: Error: Invalid operands
> > 
> > Take a look at the assembler output for the above line.
> 
> i did, it's a "ldd -183(%r3), %rN" (i don't remember the target register
> right now)

It's the "183" that's the problem.  Can you see where that is coming from?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> pointer.  where the heck does it get 183 from (or 23 in the test 
> program)? :) i'm guessing it inlined the __ldcw_align() and did some 
> constant folding to do the alignment and then the offset becomes wrong?

23 = 8 + 15.  The 15 is from ldcw align.  Don't know why we are using
this value in a ldd.  I think the ldcw is aligned ok.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Hi all,
I'm trying to get 2.6 SMP working on a UP box and was walking
through the init sequence. I have two questions related to init_idle()
in kernel/sched.c:

o local_irq_save()/local_irq_restore are called without an
  obvious local_irq_disable() call in between. Is this really
  needed for some other reason or is the local_irq_disable() missing?

o double_rq_lock() acquires the locks with lowest address first.
  double_rq_unlock() does not release those in the inverse order.
  Is that a problem?
  I'm just nervous since I didn't see the local_irq_disable()
  in init_idle() which would guarantee both unlock's happen atomically.

thanks,
grant


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On Mon, 2004-03-29 at 11:03, Grant Grundler wrote:
> o local_irq_save()/local_irq_restore are called without an
>   obvious local_irq_disable() call in between. Is this really
>   needed for some other reason or is the local_irq_disable() missing?

local_irq_save() does do an irq disable.  You're thinking of
local_save_flags() which only saves the flags but doesn't disable
interrupts.

> o double_rq_lock() acquires the locks with lowest address first.
>   double_rq_unlock() does not release those in the inverse order.
>   Is that a problem?
>   I'm just nervous since I didn't see the local_irq_disable()
>   in init_idle() which would guarantee both unlock's happen atomically.

No.  The deadlock potential comes only from lock acquisition order, not
lock release order:  nothing can block a lock release from proceeding.

James




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On Mon, Mar 29, 2004 at 09:03:57AM -0700, Grant Grundler wrote:
> o double_rq_lock() acquires the locks with lowest address first.
>   double_rq_unlock() does not release those in the inverse order.
>   Is that a problem?

No.  You have two possibilities (locks A, B; acquire and release):

1. Aa Ba Ar Br
2. Aa Ba Br Ar

It doesn't matter how you combine them; either you are waiting for A or
you have A and are waiting for B.  You never have B and are waiting for A.
Case 2 is the more common idiom since B is then entirely nested within A,
but lock A ranks lock B in both cases, so you're safe.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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--_===6369855====mail-gw5.metropolis-inter.com===_
Content-Type: text/plain; charset="utf-8"

Failed to deliver to 'castrili@mi.cl'
Virus(es) found.
{message} is infected with W32/Netsky-P
screensaver_castrili.zip is infected with W32/Netsky-P
Total infections: 2

Captured by Sophos antivirus plugin running on CommuniGate Pro mail server <http://www.stalker.com/CommuniGatePro/>



--_===6369855====mail-gw5.metropolis-inter.com===_
Content-Type: message/delivery-status

Reporting-MTA: dns; mail-gw5.metropolis-inter.com

Original-Recipient: rfc822;<castrili@mi.cl>
Final-Recipient: system;<castrili@mi.cl>
Action: failed
Status: 5.0.0

--_===6369855====mail-gw5.metropolis-inter.com===_
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--_===6369855====mail-gw5.metropolis-inter.com===_--


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ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 3/30/2004 2:07:07 AM
Engine/Pattern = 6.860-1001/1.842.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


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Subject: [parisc-linux] HP 9000 Visualize C180 Workstation display does not
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Thanks. Using tab key I could sucessfully bring the display up.
I also installed Debian 2.4 using net-iso
(palinux-2.4.21-pa6-20030718-netinst.iso).
The installation gets completed without any problem but the system does not
come up after
reboot.

I have two SCSI hard disks on the workstation and debian installed on drive
0. The system
stops at ISL prompt.

Please help.

Prakash


On Thu, Mar 25, 2004 at 10:06:35PM -0500, Prakash Shenoy wrote:
> Hi!
>
> I recently bought a HP 9000 Visualize C180 workstation from a vendor on
eBay
> and EVC to VGA Video Adapter Cable from another vendor. Both claim that
Non
> DOA on arrival.
>
> The workstation appears to boot properly but no display appears. Has any
one
> come across this situation.

Have you tried hitting <tab> key at power up?
That should let you cycle through the various supported
graphics modes.

Have you tried with a serial console?
disconnect the keyboard before doing this.

This is a FAQ but it's not in the parisc-linux FAQ.
If someone has a moment to submit a patch against
cvs.parisc-linux.org's web/src/faq/index.x I'll be
happy to edit/submit it.

thanks,
grant



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------=_NextPart_000_0002_000074DB.00002D8E--




From - Thu Nov 08 21:31:30 2018
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X-Mozilla-Keys:                                                                                 
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From: <Administrator@s15113731.rootmaster.info>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [MailServer Notification]To Sender virus found and
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ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 3/30/2004 6:53:58 AM
Engine/Pattern = 6.860-1001/1.842.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


From - Thu Nov 08 21:31:30 2018
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From: Truman Mcdowell <extjrtjxbskm@paris.com>
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Subject: [parisc-linux] granule indemnify
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From - Thu Nov 08 21:31:30 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] HP 9000 Visualize C180 Workstation display does
	not appear.
Date: Tue, 30 Mar 2004 10:51:57 -0700
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On Mon, Mar 29, 2004 at 10:47:59PM -0500, Prakash Shenoy wrote:
> I have two SCSI hard disks on the workstation and debian installed on drive
> 0. The system stops at ISL prompt.

If it stops at the ISL prompt, it means the system is autobooting
the "HPUX" disk. Reset the box,  interrupt the autoboot, then
set the primary boot path to "drive 0" (use the proper HW path).
And then boot from that same path (eg "bo fwscsi.0")

grant


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From: Giorgio Brunoldi <giorgio.brunoldi@fastwebnet.it>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problem on a 735/125 with non-hp scsi disks
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Hi everybody,

I have two 375/125 machines which are not provided with floppy and cdrom.
Workstations have "official" HP-FWD-SCSI Hard Disks (which I know are not 
supported by Pa-Risc Linux) and neither floppy nor cdrom drive.

My first (and last) success was adapting an old SCSI Apple CD 600i (2x) and 
get the first installation CD boot from that peripheral. What I did was to 
disconnect the FWD SCSI cable from internal HDs and set the termination on 
that bus. After that I connected the Single Ended SCSI connector to an 
external box containing the CDRom.

I also have 2 spare SCSI HDs which are single ended and on which I'd like to 
install Linux:

IBM 0662-S12:	1.20 Gb Fast SCSI (50 Pin Connector)
IBM DFHS-S2W:	2.25 Gb Wide SCSI (68 Pin High Density Connector) 

To try both disks I detached the external CDRom drive and in the same way I 
connected an external box with HD inside. FWD SCSI connector is still 
terminated.

To test the 68 pin disk I used a 68 to 50 pin adapter.

In this way, during boot time, no SCSI disk is found during bus scan by the 
workstations. I set both HDs as ID 6 but I think I'm doing somwthing wrong.
I forgot to say the external box has 2 centronics 50 SCSI connectors; one is 
connected to the 50 High Density connector on the workstation, the other is 
terminated with a centronics passive terminator.

I tryied to figure out the correct jumper settings cross-referencing from HDs 
tech specifications and HP 375 manuals but maybe I didn't find the right 
configuration.

- Is there any of you guys who has succeded in installing Linux on this kind 
of disks?

- Can you please tell me which are the features I should check in jumper 
settings to activate/deactivate the "right functions" and make my systems 
work?

- I red somewhere that bootable HDs have to be provided with a proper boot 
record formatting to be revealed during bus-scan. Is it true?

Thank You Very Much for your help.

Giorgio (Italy) 



From - Thu Nov 08 21:31:30 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:21247

ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 3/31/2004 2:09:48 AM
Engine/Pattern = 6.860-1001/1.844.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


From - Thu Nov 08 21:31:30 2018
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From: "Prakash Shenoy" <mpshenoy@vsnl.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] HP 9000 Visualize C180 Workstation display does
	not appear.
Date: Tue, 30 Mar 2004 20:37:22 -0500
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Hi!

Thanks for all the help. Sorry to bother you again.
I tried

	bo fwscsi.6.0.

I get this error message:

ISL booting hp/ux.

exec failed: cannot find /stand/vmunix or /vmunix.

Please note that I have formatted both the hard disks and installed debian
on fwscsi.6.0.
What may be wrong here?

Prakash




-----Original Message-----
From: Grant Grundler [mailto:grundler@parisc-linux.org]
Sent: Tuesday, March 30, 2004 12:52 PM
To: Prakash Shenoy
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] HP 9000 Visualize C180 Workstation display
does not appear.


On Mon, Mar 29, 2004 at 10:47:59PM -0500, Prakash Shenoy wrote:
> I have two SCSI hard disks on the workstation and debian installed on
drive
> 0. The system stops at ISL prompt.

If it stops at the ISL prompt, it means the system is autobooting
the "HPUX" disk. Reset the box,  interrupt the autoboot, then
set the primary boot path to "drive 0" (use the proper HW path).
And then boot from that same path (eg "bo fwscsi.0")

grant



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ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 3/31/2004 6:47:43 AM
Engine/Pattern = 6.860-1001/1.845.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


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On Tue, Mar 30, 2004 at 08:37:22PM -0500, Prakash Shenoy wrote:
> Thanks for all the help. Sorry to bother you again.

np

> I tried
> 
> 	bo fwscsi.6.0.
> 
> I get this error message:
> 
> ISL booting hp/ux.
> 
> exec failed: cannot find /stand/vmunix or /vmunix.

If ISL is still present, it means the boot blocks from HPUX are
still intact. palo should normally overwrite those.

> Please note that I have formatted both the hard disks and 

Low level SCSI format?
I don't think so.

> installed debian on fwscsi.6.0.
> What may be wrong here?

palo was probably invoked against the wrong disk or not invoked at all.
>From the Debian 3.0 install menu, you did "Make System bootable" step?

If you have both fwscsi.5.0 and fwscsi.6.0 present, linux
will find fwscsi.5.0 first and "name" it /dev/sda.
/dev/sdb will be fwscsi.6.0.

HPUX finds fwscsi.6.0 first and name it something like /dev/dsk/c0t6d0.
And thus until told otherwise, firmware will attempt to boot the HPUX disk
by default.

grant


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Booting remounting and S10checkroot.sh,
	the saga of changes to how mount works...
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pa's,

So I rebooted to test my signal fixes, and I find that I can't boot my
box anymore. It seems that /etc/rcS.d/S10checkroot.sh was no longer
doing it's job of remounting / (LABEL=ROOT) rw. I mean it wasn't as if
it didn't try, the kernel kept saying that I should specify a file
system type.

It's not fun when this happens, because you have to boot some sort of
rescue disk, and hack /etc/rcS.d/S10checkroot.sh!

The following was required to get my box back up... I don't think it's
necc, but nor do I understand what's going on here. Is this part of
those mount/remount changes I saw? :)

I think I might submit this to 'initscripts' as a "robustifying" patch.

c.

--- checkroot.sh	2004-03-30 05:45:38.716100048 -0500
+++ /etc/init.d/checkroot.sh	2004-03-30 00:40:01.000000000 -0500
@@ -181,10 +181,10 @@
 	#
 	# Ensure that root is quiescent and read-only before fsck'ing.
 	#
-	if ! mount -n -o remount,ro $rootdev /
+	if ! mount -t $roottype -n -o remount,ro $rootdev /
 	then
     		echo -n "*** ERROR!  Cannot fsck root fs because it is "
-		echo    "not mounted read-only!"
+		echo    "not mounted read-only! (rootdev=$rootdev)"
 		echo
 		rootcheck=no
 	fi
@@ -262,7 +262,7 @@
 #	
 if [ "$rootdev" != none ] && [ "$roottype" != none ]
 then
-	mount -n -o remount,$rootopts $rootdev /
+	mount -t $roottype -n -o remount,$rootopts $rootdev /
 fi
 
 #


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Subject: Re: [parisc-linux] Booting remounting and S10checkroot.sh,
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On Wed, Mar 31, 2004 at 01:36:32AM -0500, Carlos O'Donell wrote:
> So I rebooted to test my signal fixes, and I find that I can't boot my
> box anymore. It seems that /etc/rcS.d/S10checkroot.sh was no longer
> doing it's job of remounting / (LABEL=ROOT) rw. I mean it wasn't as if
> it didn't try, the kernel kept saying that I should specify a file
> system type.
> 
> It's not fun when this happens, because you have to boot some sort of
> rescue disk, and hack /etc/rcS.d/S10checkroot.sh!
> 
> The following was required to get my box back up... I don't think it's
> necc, but nor do I understand what's going on here. Is this part of
> those mount/remount changes I saw? :)
> 
> I think I might submit this to 'initscripts' as a "robustifying" patch.

Looks like they know....

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=239735

c.




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On Wed, Mar 31, 2004 at 01:36:32AM -0500, Carlos O'Donell wrote:
> So I rebooted to test my signal fixes, and I find that I can't boot my
> box anymore. It seems that /etc/rcS.d/S10checkroot.sh was no longer

This is what happens when you don't keep up with the latest CVS version ;-)
Fixed in our kernel on Monday:

http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2004-March/033952.html

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Hi,

I see the following on my console.

SCSI host 1 abort (pid 1207191) timed out - resetting
SCSI bus is being reset for host 1 channel 0.
ncr53c8xx_reset: pid=1207191 reset_flags=2 serial_number=1207192
serial_number_at_timeout=1207192
SCSI host 1 abort (pid 1207201) timed out - resetting
SCSI bus is being reset for host 1 channel 0.

The system hangs because of the resets. The problem repeats time by time.

I run K210 under linux-2.4.23-pa5. The problem appears on different scsi
controllers, so I hope there are neither controller nor disk problems. This
are current drivers from /var/log/messages.

kernel: loop: loaded (max 8 devices)
kernel: Found i82596 at 0xffd07000, IRQ 87
kernel: eth0: 82596 at 0xffd07000, 08 00 09 DA 44 88 IRQ 87.
kernel: 82596.c $Revision: 1.32 $
kernel: SCSI subsystem driver Revision: 1.00
kernel: zalon_scsi_callback: Zalon vers field is 0x1, IRQ 35
kernel: ncr53c8xx: 53c720 detected
kernel: ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
kernel: zalon_scsi_callback: Zalon vers field is 0x1, IRQ 36
kernel: ncr53c8xx: 53c720 detected
kernel: ncr53c720-1: ID 7, Fast-10, Parity Checking, Differential
kernel: scsi0 : ncr53c8xx-3.4.3b-20010512
kernel: scsi1 : ncr53c8xx-3.4.3b-20010512

Can it be a bad driver problem? I use Linux Software RAID, is it possible to
tune some parameters there?

Many thanks in advance for any help!

BR,
Dub

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Hello Carlos,

yes more delay ;) (we have to move desk and so on)

Never the less always same known errors with glibc cvs dated 2004 03 29.
But with very last gcc-3.3 installed, the feupdateenv patch is required (gcc
now refuse 'assignment of read-only member) 

hth,
    Joel



----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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Those keeping up with the 2.6 CVS tree may have noticed CVS saying

? scripts/docproc
? scripts/fixdep
? scripts/split-include

This is not a missing .cvsignore.  What has happened is that these files
have moved into scripts/basic/ so make distclean will no longer remove them
(because they're not in the Makefile any more) and so they're orphaned.

All you have to do is

rm -f scripts/docproc scripts/fixdep scripts/split-include

and the problem will be gone.  Do not re-add them to .cvsignore, please ;-)

NB.  This is not an april fools.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
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Please check your System!


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Subject: Re: [parisc-linux] 	RE: New glibc patches 2004-03-08,
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> Never the less always same known errors with glibc cvs dated 2004 03 29.
> But with very last gcc-3.3 installed, the feupdateenv patch is required (gcc
> now refuse 'assignment of read-only member) 

Noted, I'm making a patch from your patches for debian.
Thanks Joel!

c.


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On Thu, Apr 01, 2004 at 10:23:13PM +0100, Matthew Wilcox wrote:
> and the problem will be gone.  Do not re-add them to .cvsignore, please ;-)
> 
> NB.  This is not an april fools.

April fools!!!

Oh wait, it's April 2nd... :}

c.


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On Tue, Mar 02, 2004 at 03:27:44PM +0000, Matthew Wilcox wrote:
> On Tue, Mar 02, 2004 at 03:59:34PM +0100, Joel Soete wrote:
> > +  /* Raise the safed exception.  Incidently for us the implementation
> 
> "saved exception" or "safe exception"?

That's a typo that *every* other arch has because they copied the code
from i386, I think rth was the only one anal enough to fix the spelling
mistake ;)

I snatched the C99 spec and fixed our implementation based on my reading
of the current code, other arch code, and the spec. The correct
feupdateenv is provided below.

I'm sending this upstream to debian, so we can build again.

c.

Index: feupdateenv.c
===================================================================
RCS file: /cvs/glibc/libc/sysdeps/hppa/fpu/feupdateenv.c,v
retrieving revision 1.3
diff -u -p -r1.3 feupdateenv.c
--- feupdateenv.c	18 Dec 2003 03:57:50 -0000	1.3
+++ feupdateenv.c	2 Apr 2004 06:56:56 -0000
@@ -27,11 +27,10 @@ feupdateenv (const fenv_t *envp)
 
   /* Get the current exception status. */
   __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
-  sw[0] &= FE_ALL_EXCEPT;
-  envp->__status_word = envp->__status_word | sw[0];
-  
   /* Install new environment.  */
   fesetenv (envp);
+  /* Raise the saved exceptions */
+  feraiseexcept(sw[0] & FE_ALL_EXCEPT);
 
   /* Success.  */
   return 0;


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X-Mozilla-Keys:                                                                                 
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Xref: news.gmane.org gmane.linux.ports.parisc:21266

Content violation found in email message.

From: parisc-linux@lists.parisc-linux.org
To: ventas.inacoch@instacheck.cl
File(s): msg.pif

Matching filename: *.pif




From - Thu Nov 08 21:31:33 2018
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X-Mozilla-Keys:                                                                                 
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From: <Administrator@s15113731.rootmaster.info>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [MailServer Notification]To Sender virus found and
	action taken.
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Xref: news.gmane.org gmane.linux.ports.parisc:21267

ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 4/3/2004 1:57:22 AM
Engine/Pattern = 7.000-1004/1.847.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


From - Thu Nov 08 21:31:33 2018
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X-Mozilla-Keys:                                                                                 
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From: <Administrator@s15113731.rootmaster.info>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [MailServer Notification]To Sender virus found and
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Date: Sat, 3 Apr 2004 05:28:35 +0200
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ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 4/3/2004 5:28:34 AM
Engine/Pattern = 7.000-1004/1.847.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


From - Thu Nov 08 21:31:33 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: jadhavr@ias.nic.in
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] trust me
Date: Sat, 3 Apr 2004 11:13:50 +0530
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Xref: news.gmane.org gmane.linux.ports.parisc:21269

This is a multi-part message in MIME format.

------=_NextPart_000_0006_000035D3.00004A21
Content-Type: text/plain;
	charset="Windows-1252"
Content-Transfer-Encoding: 7bit

your body?

------=_NextPart_000_0006_000035D3.00004A21
Content-Type: application/x-zip-compressed;
	name="birth.zip"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
	filename="birth.zip"

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------=_NextPart_000_0006_000035D3.00004A21--




From - Thu Nov 08 21:31:33 2018
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X-Mozilla-Keys:                                                                                 
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From: virusalert@america.vrweb.cl
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ALERTA: Usted puede tener un virus
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Xref: news.gmane.org gmane.linux.ports.parisc:21270

              A L E R T A    D E     V I R U S

Nuestro sistema de antivirus encontro el (los) siguientes virus:

----------------------------------------------------
	'W32/Netsky-P'
----------------------------------------------------

en el correo que al parecer usted envio a :

----------------------------------------------------
-> aletakk
----------------------------------------------------

El correo fue rechazado y no enviado.

Los virus actuales cuando infectan a un computador mandan
correos infectados a todos las personas que tiene en su libreta
de direcciones. Muchos de estos virus modifican el remitente 
del mensaje, por lo que puede que le haya llegado este mensaje de
alerta pero que usted realmente no es el que tiene virus, sino que otra
persona que lo tiene a usted en su libreta de direcciones y el virus
esta mandando correos indicando que es usted el que los manda colocando
su casilla como remitente.

Le recomendamos revise su sistema en busca de virus, o solicite
a su administrador de sistema que realice un chequeo. Recuerde
que cuando el sistema ya esta infectado los antivirus por lo general
no funcionan, asesorese bien al respecto.

A modo de referencia, este es el  encabezado del mensaje rechazado por virus:

------------------------- BEGIN HEADERS -----------------------------
Return-Path: <parisc-linux@lists.parisc-linux.org>
Received: from takk.cl (CM-lcon2-49-12.cm.vtr.net [200.83.49.12])
	by america.vrweb.cl (8.12.9/8.12.7) with ESMTP id i33Fmv2O027403
	for <libreria@takk.cl>; Sat, 3 Apr 2004 11:49:01 -0400
Message-Id: <200404031549.i33Fmv2O027403@america.vrweb.cl>
From: parisc-linux@lists.parisc-linux.org
To: libreria@takk.cl
Subject: Mail Delivery (failure libreria@takk.cl)
Date: Sat, 3 Apr 2004 11:52:18 -0400
MIME-Version: 1.0
Content-Type: multipart/related;
	type="multipart/alternative";
	boundary="----=_NextPart_000_001B_01C0CA80.6B015D10"
X-Priority: 3
X-MSMail-Priority: Normal
-------------------------- END HEADERS ------------------------------

Esperamos este aviso le permita solucionar su problema.

Si requiere una casilla de e-mail que posea un antivirus integrado
para nunca mas recibir virus en su correo, contactenos.

VRWEB Ingenieria Internet
http://www.vrweb.cl/

-----------------------------------------------------
Correo automatico - no responder.
-----------------------------------------------------




From - Thu Nov 08 21:31:33 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [parisc-linux] [MailServer Notification]To Sender virus found and
	action taken.
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Xref: news.gmane.org gmane.linux.ports.parisc:21271

ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 4/4/2004 1:40:23 AM
Engine/Pattern = 7.000-1004/1.847.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


From - Thu Nov 08 21:31:33 2018
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X-Mozilla-Keys:                                                                                 
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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Eliminating our full cache flush on fork/exec
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Xref: news.gmane.org gmane.linux.ports.parisc:21272

For those of you interested in the problem, this patch is for playing
with: it's not actually faster, it's merely demonstrating that we can
get away with flushing only the untouched page set of a user process.

There are still several potential problems:

1. Moving the flush_kernel_dcache_page() in update_mmu_cache() is
clearly an indication of something wrong.

2. The kernel isn't equivalently mapped (physaddr doesn't equal
virtaddr) so we have potential cache aliasing issues in the tlb miss
code (not sure if we can get away with this; the dreaded appendix F
implies there's no congruence modulus for equivalent mapping).

And I'm seeing periodic segfaults which are probably due to stale cache
line problems.

As far as the patch goes, the essential problem with flush_cache_mmu()
is that we may need to flush a non-current mmu.  The way the tlb miss
code works makes this rather difficult (since we only get pgd pointers
for the kernel and the current user process) so I fixed it by loading up
the space and control registers with the non-current process for the
flush and then resetting them afterwards.  It's a particularly hacky
trick, but we could also use it to fix the non-current flush_cache_page
problem which is currently killing ptrace (and gdb) performance.

James

===== arch/parisc/kernel/cache.c 1.7 vs edited =====
--- 1.7/arch/parisc/kernel/cache.c	Wed Dec 17 23:48:38 2003
+++ edited/arch/parisc/kernel/cache.c	Sat Apr  3 20:24:33 2004
@@ -71,9 +71,9 @@
 	if (VALID_PAGE(page) && page->mapping &&
 	    test_bit(PG_dcache_dirty, &page->flags)) {
 
-		flush_kernel_dcache_page(page_address(page));
 		clear_bit(PG_dcache_dirty, &page->flags);
 	}
+	flush_kernel_dcache_page(page_address(page));
 }
 
 void
@@ -293,6 +293,185 @@
 	}
 }
 EXPORT_SYMBOL(__flush_dcache_page);
+
+/* set to max pages to flush before a full flush.  Zero means no limit */
+#define MAX_FLUSH_PAGES 0
+#undef	DEBUG_PAGE_FLUSHING
+
+#ifdef DEBUG_PAGE_FLUSHING
+#define DBG(a...)	printk(a)
+#else
+#define DBG(...)
+#endif
+
+#if (MAX_FLUSH_PAGES != 0)
+
+/* we get to use the bottom 12 bits of the addr for flags since the
+ * address must be page aligned */
+#define ICACHE_FLUSH_FLAG	0x1
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long count = 0, actual_count = 0;
+	unsigned long sr3 = mfsp(3), cr25 = mfctl(25);
+	unsigned long *pages;
+
+	preempt_disable();
+	if(mm != current->active_mm) {
+		DBG("flush_tlb_mm: current MM is not active ");
+		/* FIXME: awful hack: move the process the mm belongs
+		 * to temporarily to being the active one.  This only
+		 * works because we can never get back into user
+		 * context from here. */
+		mtctl(__pa(mm->pgd), 25);
+		mtsp(mm->context, 3);
+	}
+
+	pages = kmalloc(MAX_FLUSH_PAGES * sizeof(unsigned long), GFP_ATOMIC);
+	if(!pages) {
+		printk(KERN_ERR "flush_tlb_mm: allocation failed: full flush\n");
+		goto full_flush;
+	}
+
+	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+		unsigned long start;
+
+		pmd_t *pmd;
+		pgd_t *pgd;
+		pte_t *pte;
+
+		count += (vma->vm_end - vma->vm_start)/PAGE_SIZE;
+
+		for (start = vma->vm_start; start < vma->vm_end;
+		     start += PAGE_SIZE) {
+			pgd = pgd_offset(mm, start);
+
+			if (pgd_none(*pgd)) {
+				start = (start & PGDIR_MASK) + PGDIR_SIZE - PAGE_SIZE;
+				continue;
+			}
+
+			pmd = pmd_offset(pgd, start);
+			if (pmd_none(*pmd)) {
+				start = (start & PMD_MASK) + PMD_SIZE - PAGE_SIZE;
+				continue;
+			}
+			pte = pte_offset_map(pmd, start);
+			if(pte_val(*pte)==0 || !pte_present(*pte))
+				continue;
+
+			/* FIXME: Here we could also skip over any
+			 * shared mapping page (i.e. equivalently
+			 * aliased) with at least one other user */
+			
+			pages[actual_count] = start;
+		 
+			if (vma->vm_flags && VM_EXEC)
+				pages[actual_count] |= ICACHE_FLUSH_FLAG;
+			if(++actual_count >= MAX_FLUSH_PAGES)
+				goto full_flush_free;
+
+		}
+	}
+			
+	DBG("FLUSHED %lu (actual %lu)\n", count, actual_count);
+	for(count = 0; count < actual_count; count++) {
+		unsigned long addr = pages[count] & PAGE_MASK;
+		flush_user_dcache_page(addr);
+		if(pages[count] & ICACHE_FLUSH_FLAG)
+			flush_user_icache_page(addr);
+	}
+ out_free:
+	kfree(pages);
+ out:
+	mtsp(sr3, 3);
+	mtctl(cr25, 25);
+	preempt_enable();
+	return;
+
+ full_flush_free:
+	DBG("flush_cache_mm: over max pages %ld (count %ld), flushing everything\n", actual_count, count);
+	flush_cache_all();
+	goto out_free;
+
+ full_flush:
+	flush_cache_all();
+	goto out;
+}
+
+#else
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long count = 0, actual_count = 0;
+	unsigned long sr3 = mfsp(3), cr25 = mfctl(25);
+	static int flushed = 0;
+
+	if(unlikely(!flushed)) {
+		printk("flush_cache_mm: INIT FLUSH ALL\n");
+		flushed = 1;
+		flush_cache_all();
+		return;
+	}
+
+	preempt_disable();
+	if(mm != current->active_mm) {
+		DBG("flush_tlb_mm: current MM is not active ");
+		/* FIXME: awful hack: move the process the mm belongs
+		 * to temporarily to being the active one.  This only
+		 * works because we can never get back into user
+		 * context from here. */
+		mtctl(__pa(mm->pgd), 25);
+		mtsp(mm->context, 3);
+	}
+
+	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+		unsigned long start;
+
+		pmd_t *pmd;
+		pgd_t *pgd;
+		pte_t *pte;
+
+		count += (vma->vm_end - vma->vm_start)/PAGE_SIZE;
+
+		for (start = vma->vm_start; start < vma->vm_end;
+		     start += PAGE_SIZE) {
+			pgd = pgd_offset(mm, start);
+
+			if (pgd_none(*pgd)) {
+				start = (start & PGDIR_MASK) + PGDIR_SIZE - PAGE_SIZE;
+				continue;
+			}
+
+			pmd = pmd_offset(pgd, start);
+			if (pmd_none(*pmd)) {
+				start = (start & PMD_MASK) + PMD_SIZE - PAGE_SIZE;
+				continue;
+			}
+			pte = pte_offset_map(pmd, start);
+			if(pte_val(*pte)==0 || !pte_present(*pte))
+				continue;
+
+			/* FIXME: Here we could also skip over any
+			 * shared mapping page (i.e. equivalently
+			 * aliased) with at least one other user */
+			
+			flush_user_dcache_page(start);
+			if (vma->vm_flags && VM_EXEC)
+				flush_user_icache_page(start);
+			actual_count++;
+		}
+	}
+	mtsp(sr3, 3);
+	mtctl(cr25, 25);
+	preempt_enable();
+	DBG("FLUSHED %lu (actual %lu)\n", count, actual_count);
+}
+#endif
+
+EXPORT_SYMBOL(flush_cache_mm);
 
 /* Defined in arch/parisc/kernel/pacache.S */
 EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
===== arch/parisc/kernel/pacache.S 1.4 vs edited =====
--- 1.4/arch/parisc/kernel/pacache.S	Thu Mar 11 03:05:50 2004
+++ edited/arch/parisc/kernel/pacache.S	Sat Apr  3 08:52:19 2004
@@ -574,6 +574,95 @@
 	.exit
 
 	.procend
+	
+	.export flush_user_dcache_page
+
+flush_user_dcache_page:
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+	ldil    L%dcache_stride,%r1
+	ldw     R%dcache_stride(%r1),%r23
+
+#ifdef __LP64__
+	depdi,z 1,63-PAGE_SHIFT,1,%r25
+#else
+	depwi,z 1,31-PAGE_SHIFT,1,%r25
+#endif
+	add     %r26,%r25,%r25
+	sub     %r25,%r23,%r25
+
+
+1:      fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	CMPB<<  %r26,%r25,1b
+	fdc,m   %r23(%sr3,%r26)
+
+	sync
+	bv      %r0(%r2)
+	nop
+	.exit
+
+	.procend
+
+	.export flush_user_icache_page
+
+flush_user_icache_page:
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+	ldil    L%dcache_stride,%r1
+	ldw     R%dcache_stride(%r1),%r23
+
+#ifdef __LP64__
+	depdi,z 1,63-PAGE_SHIFT,1,%r25
+#else
+	depwi,z 1,31-PAGE_SHIFT,1,%r25
+#endif
+	add     %r26,%r25,%r25
+	sub     %r25,%r23,%r25
+
+
+1:      fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	CMPB<<  %r26,%r25,1b
+	fic,m   %r23(%sr3,%r26)
+
+	sync
+	bv      %r0(%r2)
+	nop
+	.exit
+
+	.procend
+
 
 	.export purge_kernel_dcache_page
 
===== include/asm-parisc/cacheflush.h 1.6 vs edited =====
--- 1.6/include/asm-parisc/cacheflush.h	Thu Oct  2 02:11:59 2003
+++ edited/include/asm-parisc/cacheflush.h	Sat Apr  3 12:20:20 2004
@@ -12,7 +12,7 @@
 #ifdef CONFIG_SMP
 #define flush_cache_mm(mm) flush_cache_all()
 #else
-#define flush_cache_mm(mm) flush_cache_all_local()
+extern void flush_cache_mm(struct mm_struct *);
 #endif
 
 #define flush_kernel_dcache_range(start,size) \
===== include/asm-parisc/page.h 1.5 vs edited =====
--- 1.5/include/asm-parisc/page.h	Sat Sep 27 16:43:45 2003
+++ edited/include/asm-parisc/page.h	Sat Apr  3 19:47:09 2004
@@ -20,6 +20,8 @@
 extern void purge_kernel_dcache_page(unsigned long);
 extern void copy_user_page_asm(void *to, void *from);
 extern void clear_user_page_asm(void *page, unsigned long vaddr);
+extern void flush_user_dcache_page(unsigned long);
+extern void flush_user_icache_page(unsigned long);
 
 static inline void
 copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *pg)




From - Thu Nov 08 21:31:33 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:21273

ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 4/4/2004 5:32:39 AM
Engine/Pattern = 7.000-1004/1.847.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] ATOMIC_HASH brainfart
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Xref: news.gmane.org gmane.linux.ports.parisc:21274

Hi all,
Seems like someone was confused when they hacked ATOMIC_HASH macro.
Cacheline is 64 bytes not 256...but I've been told several times gcc
is smart enough to convert "foo/64" to "foo>>6"...then just use
the L1_CACHE_BYTES definition to indicate intent?

I haven't verified everything builds and works right
but it looks "obviously correct" to me. Comments?

I'm still looking at getting SMP to boot.

grant


Index: include/asm/atomic.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/atomic.h,v
retrieving revision 1.6
diff -u -p -r1.6 atomic.h
--- a/include/asm/atomic.h	25 Mar 2004 06:19:07 -0000	1.6
+++ b/include/asm/atomic.h	4 Apr 2004 06:48:20 -0000
@@ -19,10 +19,10 @@ typedef spinlock_t atomic_lock_t;
 
 /* Use an array of spinlocks for our atomic_ts.
  * Hash function to index into a different SPINLOCK.
- * Since "a" is usually an address, ">>8" makes one spinlock per 64-bytes.
+ * Since "a" is usually an address, use one spinlock per cacheline.
  */
 #  define ATOMIC_HASH_SIZE 4
-#  define ATOMIC_HASH(a) (&__atomic_hash[(((unsigned long) a)>>8)&(ATOMIC_HASH_SIZE-1)])
+#  define ATOMIC_HASH(a) (&__atomic_hash[(((unsigned long) a)/L1_CACHE_BYTES)&(ATOMIC_HASH_SIZE-1)])
 
 extern atomic_lock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] Domain Validation or gcc 3.3.3 bug?
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Xref: news.gmane.org gmane.linux.ports.parisc:21275

I trying to build/boot 64-bit UP kernel on an A500.
But using gcc 3.3.3 tool chain...I'd just blame the toolchain
but this box (intentionally) has a "wide" SCSI disk tray
connected to the "narrow" SE SCSI port on the a500.
Seems the Domain Validation isn't quite working?
Or this remind someone of any gcc 3.3.3 bugs?

I'll try a kernel built using the trust old hppa64-gcc v3.0.4.
later or tomorrow.

Console output is appended.

thanks,
grant

...
Firmware Version  40.50

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      440  MHz   Active                 Functional         512 KB   1 MB
      1      440  MHz   Idle                   Functional         512 KB   1 MB

  Central Bus Speed (in MHz)  :        111  
  Available Memory            :    2097152  KB
  Good Memory Required        :      11468  KB

   Primary boot path:    0/0/1/1.15          
   Alternate boot path:  0/0/2/1.15          
   Console path:         0/0/4/0.0           
   Keyboard path:        0/0/4/0.0           

 WARNING:  The non-destructive test bit was set, so memory was not tested 
            destructively.  Information only, no action required. 


---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > bo
Interact with IPL (Y, N, or Cancel)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.4 root@c3k Fri Mar 26 16:18:24 MST 2004

Partition Start(MB) End(MB) Id Type
1               1     513   fd RAID
2             514     524   f0 Palo
3             525    2051   fd RAID
4            2052    8682   fd RAID

PALO(F0) partition contains:
    0/vmlinux64 4822102 bytes @ 0x20140000
Current command line:
3/boot/vmlinux-2.6.5-rc3-pa3 HOME=/ TERM=linux root=/dev/md2 console=ttyS0
 0: 3/boot/vmlinux-2.6.5-rc3-pa3
 1: HOME=/
 2: TERM=linux
 3: root=/dev/md2
 4: console=ttyS0

Edit which field?
(or 'b' to boot with this command line, 'r' to restore)? 0
3/boot/vmlinux-2.6.5-rc3-pa3
Current command line:
3/boot/vmlinux-2.6.5-rc3-pa3 HOME=/ TERM=linux root=/dev/md2 console=ttyS0
 0: 3/boot/vmlinux-2.6.5-rc3-pa3
 1: HOME=/
 2: TERM=linux
 3: root=/dev/md2
 4: console=ttyS0

Edit which field?
(or 'b' to boot with this command line, 'r' to restore)? b

Command line for kernel: 'HOME=/ TERM=linux root=/dev/md2 console=ttyS0 palo_kernel=3/boot/vmlinux-2.6.5-rc3-pa3'
Selected kernel: /boot/vmlinux-2.6.5-rc3-pa3 from partition 3
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 3047808 mediaptr 0x1000
Segment 1 load 003ec000 size 263400 mediaptr 0x2ea000
Segment 2 load 00430000 size 233605 mediaptr 0x32b000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.5-rc3-pa3 (grundler@ios) (gcc version 3.3.3 (Debian 20040401)) #1 Sat Apr 3 23:06:14 PST 2004
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00005cb0 00000491 00000000 00000001 23355fdc 100000f0 00000008 000000b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x1
model 9000/800/A500-44
Total Memory: 2048 Mb
On node 0 totalpages: 524288
  DMA zone: 524288 pages, LIFO batch:16
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Built 1 zonelists
Kernel command line: HOME=/ TERM=linux root=/dev/md2 console=ttyS0 palo_kernel=3/boot/vmlinux-2.6.5-rc3-pa3
PID hash table entries: 16 (order 4: 256 bytes)
Console: colour dummy device 160x64
Memory: 2048124k available
Calibrating delay loop... 874.49 BogoMIPS
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Mount-cache hash table entries: 256 (order: 0, 4096 bytes)
POSIX conformance testing by UNIFIX
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Crescendo 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5cb, 0x00004 }
2. Crescendo 440 at 0xfffffffffffa2000 [162] { 0, 0x0, 0x5cb, 0x00004 }
3. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
4. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
7. Elroy PCI Bridge at 0xfffffffffed3c000 [0/6] { 13, 0x0, 0x782, 0x0000a }
8. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x09b, 0x00009 }
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of parisc-94 failed with error 1
CPU(s): 1 x PA8500 (PCX-W) at 440.000000 MHz
SBA found Astro 2.1 at 0xfffffffffed00000
lba version TR4.0 (0x5) found at 0xfffffffffed30000
lba version TR4.0 (0x5) found at 0xfffffffffed34000
lba version TR4.0 (0x5) found at 0xfffffffffed38000
lba version TR4.0 (0x5) found at 0xfffffffffed3c000
SCSI subsystem initialized
Performance monitoring counters enabled for Crescendo 440
ikconfig 0.7 with /proc/config*
Initializing Cryptographic API
Soft power switch support not available.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 17 ports, IRQ sharing enabled
ttyS0 at MMIO 0xfffffffff8000000 (irq = 132) is a 16550A
ttyS1 at MMIO 0xfffffffff8000008 (irq = 132) is a 16550A
ttyS2 at MMIO 0xfffffffff8000010 (irq = 132) is a 16550A
ttyS3 at MMIO 0xfffffffff8005000 (irq = 133) is a 16550A
ttyS4 at MMIO 0xfffffffff8005008 (irq = 133) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
sym0: <896> rev 0x7 at pci 0000:00:01.0 irq 129
sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18f
Using anticipatory io scheduler
sym0:0:0: ABORT operation started.
sym0:0:0: ABORT operation complete.
  Vendor: SEAGATE   Model: ST39102LC         Rev: 7C03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:0:0: tagged command queuing enabled, command queue depth 16.
  Vendor: SEAGATE   Model: ST39102LC         Rev: 7C03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:1:0: tagged command queuing enabled, command queue depth 16.
  Vendor: SEAGATE   Model: ST39102LC         Rev: 7C03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:2:0: tagged command queuing enabled, command queue depth 16.
  Vendor: SEAGATE   Model: ST39102LC         Rev: 7C03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:3:0: tagged command queuing enabled, command queue depth 16.
  Vendor: HP        Model: D5989B            Rev: 1.02
  Type:   Processor                          ANSI SCSI revision: 02
  Vendor: SEAGATE   Model: ST39102LC         Rev: 7C03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:8:0: tagged command queuing enabled, command queue depth 16.
  Vendor: SEAGATE   Model: ST39102LC         Rev: 7C03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:9:0: tagged command queuing enabled, command queue depth 16.
sym1: <896> rev 0x7 at pci 0000:00:01.1 irq 130
sym1: No NVRAM, ID 7, Fast-40, SE, parity checking
sym1: SCSI BUS has been reset.
sym1: SCSI BUS mode change from SE to SE.
sym1: SCSI BUS has been reset.
scsi1 : sym-2.1.18f
  Vendor: SEAGATE   Model: ST39173LC         Rev: 5912
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym1:15:0: tagged command queuing enabled, command queue depth 16.
sym2: <875> rev 0x14 at pci 0000:00:02.0 irq 130
sym2: No NVRAM, ID 7, Fast-20, SE, parity checking
sym2: SCSI BUS has been reset.
scsi2 : sym-2.1.18f
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym2:0:0: tagged command queuing enabled, command queue depth 16.
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym2:1:0: tagged command queuing enabled, command queue depth 16.
sym2:2: FAST-10 WIDE SCSI 20.0 MB/s ST (100.0 ns, offset 15)
sym2: SCSI parity error detected: SCR1=1 DBC=11000000 SBCL=29
sym2: SCSI parity error detected: SCR1=1 DBC=1100000e SBCL=ae
sym2: SCSI parity error detected: SCR1=1 DBC=11000000 SBCL=29
sym2: SCSI parity error detected: SCR1=1 DBC=1100000e SBCL=ae
sym2: SCSI parity error detected: SCR1=1 DBC=11000000 SBCL=29
sym2: SCSI parity error detected: SCR1=1 DBC=1100000e SBCL=ae
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym2:3:0: tagged command queuing enabled, command queue depth 16.
  Vendor: HP        Model: D5989B            Rev: 1.02
  Type:   Processor                          ANSI SCSI revision: 02
sym3: <875> rev 0x14 at pci 0000:00:02.1 irq 131
sym3: No NVRAM, ID 7, Fast-20, SE, parity checking
sym3: SCSI BUS has been reset.
scsi3 : sym-2.1.18f
  Vendor: SEAGATE   Model: ST39173LC         Rev: 5912
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym3:15:0: tagged command queuing enabled, command queue depth 16.
st: Version 20040318, fixed bufsize 32768, s/g segs 256
sym0:0: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
SCSI device sda: 17781521 512-byte hdwr sectors (9104 MB)
SCSI device sda: drive cache: write through
 sda: unknown partition table
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
sym0:1: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
SCSI device sdb: 17781521 512-byte hdwr sectors (9104 MB)
SCSI device sdb: drive cache: write through
 sdb: unknown partition table
Attached scsi disk sdb at scsi0, channel 0, id 1, lun 0
sym0:2: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
SCSI device sdc: 17781521 512-byte hdwr sectors (9104 MB)
SCSI device sdc: drive cache: write through
 sdc: unknown partition table
Attached scsi disk sdc at scsi0, channel 0, id 2, lun 0
sym0:3: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
SCSI device sdd: 17781521 512-byte hdwr sectors (9104 MB)
SCSI device sdd: drive cache: write through
 sdd: unknown partition table
Attached scsi disk sdd at scsi0, channel 0, id 3, lun 0
sym0:8: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
SCSI device sde: 17781521 512-byte hdwr sectors (9104 MB)
SCSI device sde: drive cache: write through
 sde: unknown partition table
Attached scsi disk sde at scsi0, channel 0, id 8, lun 0
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
SCSI device sdf: 17781521 512-byte hdwr sectors (9104 MB)
SCSI device sdf: drive cache: write through
 sdf: unknown partition table
Attached scsi disk sdf at scsi0, channel 0, id 9, lun 0
sym1:15: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
SCSI device sdg: 17781521 512-byte hdwr sectors (9104 MB)
SCSI device sdg: drive cache: write back
 sdg: sdg1 sdg2 sdg3 sdg4
Attached scsi disk sdg at scsi1, channel 0, id 15, lun 0
sym2:0: FAST-10 WIDE SCSI 20.0 MB/s ST (100.0 ns, offset 15)
sym2: SCSI parity error detected: SCR1=1 DBC=1100000e SBCL=ae
<EOF>


From - Thu Nov 08 21:31:34 2018
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Domain Validation or gcc 3.3.3 bug?
Date: Sun, 4 Apr 2004 15:13:53 +0100
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On Sun, Apr 04, 2004 at 12:23:11AM -0700, Grant Grundler wrote:
> I trying to build/boot 64-bit UP kernel on an A500.
> But using gcc 3.3.3 tool chain...I'd just blame the toolchain
> but this box (intentionally) has a "wide" SCSI disk tray
> connected to the "narrow" SE SCSI port on the a500.
> Seems the Domain Validation isn't quite working?
> Or this remind someone of any gcc 3.3.3 bugs?

> sym0: <896> rev 0x7 at pci 0000:00:01.0 irq 129
> sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
> sym0: SCSI BUS has been reset.
> scsi0 : sym-2.1.18f

2.1.18f doesn't have domain validation ... you must have downgraded to
an earlier version of the sym2 driver.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


From - Thu Nov 08 21:31:34 2018
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Subject: Re: [parisc-linux] Domain Validation or gcc 3.3.3 bug?
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On Sun, Apr 04, 2004 at 03:13:53PM +0100, Matthew Wilcox wrote:
> 2.1.18f doesn't have domain validation

ah ok.
>  ... you must have downgraded to
> an earlier version of the sym2 driver.

Certainly not intentionally.
I'm using "cvs up" with "update -Pd" in my .csvrc.
My linux-2.6 source tree on ion also has (2.6.5-rc3-pa3 based) "sym-2.1.18f".
I just ran cvs up again on "ios" and now have 2.6.5-pa0 with sym-2.1.18j.

thanks,
grant


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On Sun, Apr 04, 2004 at 03:39:49PM -0600, Grant Grundler wrote:
> >  ... you must have downgraded to
> > an earlier version of the sym2 driver.
> 
> Certainly not intentionally.

my bad. Probably was intentional and I just forgot.
The CVS/Entries file had "TLINUX_262" on the end.

thanks,
grant


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ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 4/5/2004 1:44:58 AM
Engine/Pattern = 7.000-1004/1.849.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


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Subject: Re: [parisc-linux] ATOMIC_HASH brainfart
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On Sul, 2004-04-04 at 07:56, Grant Grundler wrote:
> Hi all,
> Seems like someone was confused when they hacked ATOMIC_HASH macro.
> Cacheline is 64 bytes not 256...but I've been told several times gcc
> is smart enough to convert "foo/64" to "foo>>6"...then just use
> the L1_CACHE_BYTES definition to indicate intent?

IFF foo is a constant or foo is unsigned. Looks fine to me



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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] ATOMIC_HASH brainfart
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> > Seems like someone was confused when they hacked ATOMIC_HASH macro.
> > Cacheline is 64 bytes not 256...but I've been told several times gcc
> > is smart enough to convert "foo/64" to "foo>>6"...then just use
> > the L1_CACHE_BYTES definition to indicate intent?
> 
> IFF foo is a constant or foo is unsigned. Looks fine to me

or you can even use L1_CACHE_SHIFT :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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On Sun, 2004-04-04 at 22:47, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/04/04 20:47:40
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: cache.c pacache.S 
> 	include/asm-parisc: cache.h cacheflush.h 
> 
> Log message:
> Fix non current user process flushing.
> 
> We have two problems:
> 
> - There's a bug in __flush_dcache_page() that causes it to do nothing
> if the current process doesn't contain the page.  This is incorrect
> since it will leave the congruent user pages incoherent with the
> kernel page.
> 
> - flush_cache_page() flushes everything if the mm of the
> requested vma isn't current (this is correct, but cumbersome and is
> what gives us the abysmally slow ptrace performance).
> 
> We can fix both of these by introducing a new API:
> 
> flush_user_cache_page_non_current()
> 
> Specifically designed to flush a page in a non-current process.

===== arch/parisc/kernel/cache.c 1.7 vs edited =====
--- 1.7/arch/parisc/kernel/cache.c	Wed Dec 17 23:48:38 2003
+++ edited/arch/parisc/kernel/cache.c	Sat Apr  3 20:24:33 2004
@@ -71,9 +71,9 @@
 	if (VALID_PAGE(page) && page->mapping &&
 	    test_bit(PG_dcache_dirty, &page->flags)) {
 
-		flush_kernel_dcache_page(page_address(page));
 		clear_bit(PG_dcache_dirty, &page->flags);
 	}
+	flush_kernel_dcache_page(page_address(page));
 }
 
 void
@@ -293,6 +293,185 @@
 	}
 }
 EXPORT_SYMBOL(__flush_dcache_page);
+
+/* set to max pages to flush before a full flush.  Zero means no limit */
+#define MAX_FLUSH_PAGES 0
+#undef	DEBUG_PAGE_FLUSHING
+
+#ifdef DEBUG_PAGE_FLUSHING
+#define DBG(a...)	printk(a)
+#else
+#define DBG(...)
+#endif
+
+#if (MAX_FLUSH_PAGES != 0)
+
+/* we get to use the bottom 12 bits of the addr for flags since the
+ * address must be page aligned */
+#define ICACHE_FLUSH_FLAG	0x1
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long count = 0, actual_count = 0;
+	unsigned long sr3 = mfsp(3), cr25 = mfctl(25);
+	unsigned long *pages;
+
+	preempt_disable();
+	if(mm != current->active_mm) {
+		DBG("flush_tlb_mm: current MM is not active ");
+		/* FIXME: awful hack: move the process the mm belongs
+		 * to temporarily to being the active one.  This only
+		 * works because we can never get back into user
+		 * context from here. */
+		mtctl(__pa(mm->pgd), 25);
+		mtsp(mm->context, 3);
+	}
+
+	pages = kmalloc(MAX_FLUSH_PAGES * sizeof(unsigned long), GFP_ATOMIC);
+	if(!pages) {
+		printk(KERN_ERR "flush_tlb_mm: allocation failed: full flush\n");
+		goto full_flush;
+	}
+
+	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+		unsigned long start;
+
+		pmd_t *pmd;
+		pgd_t *pgd;
+		pte_t *pte;
+
+		count += (vma->vm_end - vma->vm_start)/PAGE_SIZE;
+
+		for (start = vma->vm_start; start < vma->vm_end;
+		     start += PAGE_SIZE) {
+			pgd = pgd_offset(mm, start);
+
+			if (pgd_none(*pgd)) {
+				start = (start & PGDIR_MASK) + PGDIR_SIZE - PAGE_SIZE;
+				continue;
+			}
+
+			pmd = pmd_offset(pgd, start);
+			if (pmd_none(*pmd)) {
+				start = (start & PMD_MASK) + PMD_SIZE - PAGE_SIZE;
+				continue;
+			}
+			pte = pte_offset_map(pmd, start);
+			if(pte_val(*pte)==0 || !pte_present(*pte))
+				continue;
+
+			/* FIXME: Here we could also skip over any
+			 * shared mapping page (i.e. equivalently
+			 * aliased) with at least one other user */
+			
+			pages[actual_count] = start;
+		 
+			if (vma->vm_flags && VM_EXEC)
+				pages[actual_count] |= ICACHE_FLUSH_FLAG;
+			if(++actual_count >= MAX_FLUSH_PAGES)
+				goto full_flush_free;
+
+		}
+	}
+			
+	DBG("FLUSHED %lu (actual %lu)\n", count, actual_count);
+	for(count = 0; count < actual_count; count++) {
+		unsigned long addr = pages[count] & PAGE_MASK;
+		flush_user_dcache_page(addr);
+		if(pages[count] & ICACHE_FLUSH_FLAG)
+			flush_user_icache_page(addr);
+	}
+ out_free:
+	kfree(pages);
+ out:
+	mtsp(sr3, 3);
+	mtctl(cr25, 25);
+	preempt_enable();
+	return;
+
+ full_flush_free:
+	DBG("flush_cache_mm: over max pages %ld (count %ld), flushing everything\n", actual_count, count);
+	flush_cache_all();
+	goto out_free;
+
+ full_flush:
+	flush_cache_all();
+	goto out;
+}
+
+#else
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long count = 0, actual_count = 0;
+	unsigned long sr3 = mfsp(3), cr25 = mfctl(25);
+	static int flushed = 0;
+
+	if(unlikely(!flushed)) {
+		printk("flush_cache_mm: INIT FLUSH ALL\n");
+		flushed = 1;
+		flush_cache_all();
+		return;
+	}
+
+	preempt_disable();
+	if(mm != current->active_mm) {
+		DBG("flush_tlb_mm: current MM is not active ");
+		/* FIXME: awful hack: move the process the mm belongs
+		 * to temporarily to being the active one.  This only
+		 * works because we can never get back into user
+		 * context from here. */
+		mtctl(__pa(mm->pgd), 25);
+		mtsp(mm->context, 3);
+	}
+
+	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+		unsigned long start;
+
+		pmd_t *pmd;
+		pgd_t *pgd;
+		pte_t *pte;
+
+		count += (vma->vm_end - vma->vm_start)/PAGE_SIZE;
+
+		for (start = vma->vm_start; start < vma->vm_end;
+		     start += PAGE_SIZE) {
+			pgd = pgd_offset(mm, start);
+
+			if (pgd_none(*pgd)) {
+				start = (start & PGDIR_MASK) + PGDIR_SIZE - PAGE_SIZE;
+				continue;
+			}
+
+			pmd = pmd_offset(pgd, start);
+			if (pmd_none(*pmd)) {
+				start = (start & PMD_MASK) + PMD_SIZE - PAGE_SIZE;
+				continue;
+			}
+			pte = pte_offset_map(pmd, start);
+			if(pte_val(*pte)==0 || !pte_present(*pte))
+				continue;
+
+			/* FIXME: Here we could also skip over any
+			 * shared mapping page (i.e. equivalently
+			 * aliased) with at least one other user */
+			
+			flush_user_dcache_page(start);
+			if (vma->vm_flags && VM_EXEC)
+				flush_user_icache_page(start);
+			actual_count++;
+		}
+	}
+	mtsp(sr3, 3);
+	mtctl(cr25, 25);
+	preempt_enable();
+	DBG("FLUSHED %lu (actual %lu)\n", count, actual_count);
+}
+#endif
+
+EXPORT_SYMBOL(flush_cache_mm);
 
 /* Defined in arch/parisc/kernel/pacache.S */
 EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
===== arch/parisc/kernel/pacache.S 1.4 vs edited =====
--- 1.4/arch/parisc/kernel/pacache.S	Thu Mar 11 03:05:50 2004
+++ edited/arch/parisc/kernel/pacache.S	Sat Apr  3 08:52:19 2004
@@ -574,6 +574,95 @@
 	.exit
 
 	.procend
+	
+	.export flush_user_dcache_page
+
+flush_user_dcache_page:
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+	ldil    L%dcache_stride,%r1
+	ldw     R%dcache_stride(%r1),%r23
+
+#ifdef __LP64__
+	depdi,z 1,63-PAGE_SHIFT,1,%r25
+#else
+	depwi,z 1,31-PAGE_SHIFT,1,%r25
+#endif
+	add     %r26,%r25,%r25
+	sub     %r25,%r23,%r25
+
+
+1:      fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	CMPB<<  %r26,%r25,1b
+	fdc,m   %r23(%sr3,%r26)
+
+	sync
+	bv      %r0(%r2)
+	nop
+	.exit
+
+	.procend
+
+	.export flush_user_icache_page
+
+flush_user_icache_page:
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+	ldil    L%dcache_stride,%r1
+	ldw     R%dcache_stride(%r1),%r23
+
+#ifdef __LP64__
+	depdi,z 1,63-PAGE_SHIFT,1,%r25
+#else
+	depwi,z 1,31-PAGE_SHIFT,1,%r25
+#endif
+	add     %r26,%r25,%r25
+	sub     %r25,%r23,%r25
+
+
+1:      fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	CMPB<<  %r26,%r25,1b
+	fic,m   %r23(%sr3,%r26)
+
+	sync
+	bv      %r0(%r2)
+	nop
+	.exit
+
+	.procend
+
 
 	.export purge_kernel_dcache_page
 
===== include/asm-parisc/cacheflush.h 1.6 vs edited =====
--- 1.6/include/asm-parisc/cacheflush.h	Thu Oct  2 02:11:59 2003
+++ edited/include/asm-parisc/cacheflush.h	Sat Apr  3 12:20:20 2004
@@ -12,7 +12,7 @@
 #ifdef CONFIG_SMP
 #define flush_cache_mm(mm) flush_cache_all()
 #else
-#define flush_cache_mm(mm) flush_cache_all_local()
+extern void flush_cache_mm(struct mm_struct *);
 #endif
 
 #define flush_kernel_dcache_range(start,size) \
===== include/asm-parisc/page.h 1.5 vs edited =====
--- 1.5/include/asm-parisc/page.h	Sat Sep 27 16:43:45 2003
+++ edited/include/asm-parisc/page.h	Sat Apr  3 19:47:09 2004
@@ -20,6 +20,8 @@
 extern void purge_kernel_dcache_page(unsigned long);
 extern void copy_user_page_asm(void *to, void *from);
 extern void clear_user_page_asm(void *page, unsigned long vaddr);
+extern void flush_user_dcache_page(unsigned long);
+extern void flush_user_icache_page(unsigned long);
 
 static inline void
 copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *pg)



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Xref: news.gmane.org gmane.linux.ports.parisc:21283

And now with the correct patch attached.

James

===== arch/parisc/kernel/cache.c 1.7 vs edited =====
--- 1.7/arch/parisc/kernel/cache.c	Wed Dec 17 23:48:38 2003
+++ edited/arch/parisc/kernel/cache.c	Sun Apr  4 20:10:40 2004
@@ -231,6 +231,7 @@
 {
 	struct mm_struct *mm = current->active_mm;
 	struct list_head *l;
+	struct vm_area_struct *anyvma = NULL;
 
 	flush_kernel_dcache_page(page_address(page));
 
@@ -242,7 +243,7 @@
 		struct vm_area_struct *mpnt;
 		unsigned long off;
 
-		mpnt = list_entry(l, struct vm_area_struct, shared);
+		anyvma = mpnt = list_entry(l, struct vm_area_struct, shared);
 
 		/*
 		 * If this VMA is not in our MM, we can ignore it.
@@ -271,7 +272,7 @@
 		struct vm_area_struct *mpnt;
 		unsigned long off;
 
-		mpnt = list_entry(l, struct vm_area_struct, shared);
+		anyvma = mpnt = list_entry(l, struct vm_area_struct, shared);
 

 		if (mpnt->vm_mm != mm || !(mpnt->vm_flags & VM_MAYSHARE))
@@ -289,7 +290,15 @@
 		/* All user shared mappings should be equivalently mapped,
 		 * so once we've flushed one we should be ok
 		 */
-		break;
+		return;
+	}
+	/* This is the problem case.  We failed to find the page to be
+	 * flushed in the current vma thus we have to flush it in some
+	 * other user process */
+	if (likely(anyvma)) {
+		unsigned long addr = anyvma->vm_start
+			+ ((page->index - anyvma->vm_pgoff) << PAGE_SHIFT);
+		flush_user_cache_page_non_current(anyvma, addr);
 	}
 }
 EXPORT_SYMBOL(__flush_dcache_page);
===== arch/parisc/kernel/pacache.S 1.4 vs edited =====
--- 1.4/arch/parisc/kernel/pacache.S	Thu Mar 11 03:05:50 2004
+++ edited/arch/parisc/kernel/pacache.S	Sun Apr  4 19:52:34 2004
@@ -574,6 +574,95 @@
 	.exit
 
 	.procend
+	
+	.export flush_user_dcache_page
+
+flush_user_dcache_page:
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+	ldil    L%dcache_stride,%r1
+	ldw     R%dcache_stride(%r1),%r23
+
+#ifdef __LP64__
+	depdi,z 1,63-PAGE_SHIFT,1,%r25
+#else
+	depwi,z 1,31-PAGE_SHIFT,1,%r25
+#endif
+	add     %r26,%r25,%r25
+	sub     %r25,%r23,%r25
+
+
+1:      fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	fdc,m   %r23(%sr3,%r26)
+	CMPB<<  %r26,%r25,1b
+	fdc,m   %r23(%sr3,%r26)
+
+	sync
+	bv      %r0(%r2)
+	nop
+	.exit
+
+	.procend
+
+	.export flush_user_icache_page
+
+flush_user_icache_page:
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+	ldil    L%dcache_stride,%r1
+	ldw     R%dcache_stride(%r1),%r23
+
+#ifdef __LP64__
+	depdi,z 1,63-PAGE_SHIFT,1,%r25
+#else
+	depwi,z 1,31-PAGE_SHIFT,1,%r25
+#endif
+	add     %r26,%r25,%r25
+	sub     %r25,%r23,%r25
+
+
+1:      fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	fic,m   %r23(%sr3,%r26)
+	CMPB<<  %r26,%r25,1b
+	fic,m   %r23(%sr3,%r26)
+
+	sync
+	bv      %r0(%r2)
+	nop
+	.exit
+
+	.procend
+
 
 	.export purge_kernel_dcache_page
 
===== include/asm-parisc/cache.h 1.5 vs edited =====
--- 1.5/include/asm-parisc/cache.h	Tue Feb  3 23:43:00 2004
+++ edited/include/asm-parisc/cache.h	Sun Apr  4 19:51:32 2004
@@ -52,6 +52,8 @@
 extern void disable_sr_hashing_asm(int); /* low level support for above */
 extern void free_sid(unsigned long);
 unsigned long alloc_sid(void);
+extern void flush_user_dcache_page(unsigned long);
+extern void flush_user_icache_page(unsigned long);
 
 struct seq_file;
 extern void show_cache_info(struct seq_file *m);
===== include/asm-parisc/cacheflush.h 1.6 vs edited =====
--- 1.6/include/asm-parisc/cacheflush.h	Thu Oct  2 02:11:59 2003
+++ edited/include/asm-parisc/cacheflush.h	Sun Apr  4 20:07:40 2004
@@ -111,26 +111,50 @@
 	}
 }
 
+/* Private function to flush a page from the cache of a non-current
+ * process.  cr25 contains the Page Directory of the current user
+ * process; we're going to hijack both it and the user space %sr3 to
+ * temporarily make the non-current process current.  We have to do
+ * this because cache flushing may cause a non-access tlb miss which
+ * the handlers have to fill in from the pgd of the non-current
+ * process. */
+static inline void
+flush_user_cache_page_non_current(struct vm_area_struct *vma,
+				  unsigned long vmaddr)
+{
+	/* save the current process space and pgd */
+	unsigned long space = mfsp(3), pgd = mfctl(25);
+
+	/* we don't mind taking interrups since they may not
+	 * do anything with user space, but we can't
+	 * be preempted here */
+	preempt_disable();
+
+	/* make us current */
+	mtctl(__pa(vma->vm_mm->pgd), 25);
+	mtsp(vma->vm_mm->context, 3);
+
+	flush_user_dcache_page(vmaddr);
+	if(vma->vm_flags & VM_EXEC)
+		flush_user_icache_page(vmaddr);
+
+	/* put the old current process back */
+	mtsp(space, 3);
+	mtctl(pgd, 25);
+	preempt_enable();
+}
+
 static inline void
 flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
 {
-	int sr3;
+	BUG_ON(!vma->vm_mm->context);
 
-	if (!vma->vm_mm->context) {
-		BUG();
-		return;
-	}

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From: "Centro Psiclogos" <centro@centropsicologos.cl>
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Subject: [parisc-linux] Su Reserva
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Estimado Visitante:



Centro Psiclogos a recibido su Reserva. Nos comunicaremos con usted a la brevedad con el fin de confirmar su peticin.

Muchas Gracias.


Atte.
Moiss Espaa T.
www.centropsicologos.cl
fonofax: 6962441 




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Subject: [parisc-linux] ALERTA: Usted puede tener un virus
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Xref: news.gmane.org gmane.linux.ports.parisc:21287

              A L E R T A    D E     V I R U S

Nuestro sistema de antivirus encontro el (los) siguientes virus:

----------------------------------------------------
	'W32/Netsky-P'
----------------------------------------------------

en el correo que al parecer usted envio a :

----------------------------------------------------
-> aletakk
----------------------------------------------------

El correo fue rechazado y no enviado.

Los virus actuales cuando infectan a un computador mandan
correos infectados a todos las personas que tiene en su libreta
de direcciones. Muchos de estos virus modifican el remitente 
del mensaje, por lo que puede que le haya llegado este mensaje de
alerta pero que usted realmente no es el que tiene virus, sino que otra
persona que lo tiene a usted en su libreta de direcciones y el virus
esta mandando correos indicando que es usted el que los manda colocando
su casilla como remitente.

Le recomendamos revise su sistema en busca de virus, o solicite
a su administrador de sistema que realice un chequeo. Recuerde
que cuando el sistema ya esta infectado los antivirus por lo general
no funcionan, asesorese bien al respecto.

A modo de referencia, este es el  encabezado del mensaje rechazado por virus:

------------------------- BEGIN HEADERS -----------------------------
Return-Path: <parisc-linux@lists.parisc-linux.org>
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-------------------------- END HEADERS ------------------------------

Esperamos este aviso le permita solucionar su problema.

Si requiere una casilla de e-mail que posea un antivirus integrado
para nunca mas recibir virus en su correo, contactenos.

VRWEB Ingenieria Internet
http://www.vrweb.cl/

-----------------------------------------------------
Correo automatico - no responder.
-----------------------------------------------------




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Subject: [parisc-linux] HPMC 2.6.5-rc1 kernel on c3k
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Xref: news.gmane.org gmane.linux.ports.parisc:21288

FYI.

My c3k HPMC'd last night when I was compiling kernels.
USB was likely just the "victim" and not the culprit since
I was working remotely and wasn't using any USB devices.
Ie recent changes to SBA IOMMU code might still be suspect
(I have no ideas what, just it's the place to start looking).

I've typed in console output by hand so it may not be 100% accurate.

hth,
grant


Addresses on stack:
	__wake_up_common+0x60/0xa8
	parisc_terminate+0x60/0xb8
	__wake_up+0x20/0x38
	handle_interruption+0x144/0x560
	intr_check_sig+0x0/0xc
	roothub_a+0xc/0x5c
	dentry_open+0x160/0x230
	start_kernel

PSW  C, Q, P, D bits are set

r00-03	00000000 1039e010 10299cac 4fcd9628
...
r20-23  f9007048 4fcd4000 10299c74 1047d690
r24-27  6875b0a0 4fc26000 4fcd9400 10395010

sr3 0x5
sr4-7 0x0
IIR 0e80019c
IOAQ roothub_a+0x8
RP   ohci_hub_status_data+0x38/0x16c




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Carlos,

I just apply your patch against the glibc cvs dated 20040405 (yesterday for
me).
It compiles well with last updated gcc (3.3.3-6 dpkg iirc) :)

I just complete the 'make -k check' (on chroot disk) which finished with
nothing more then well known bug :)

... And the compile (always in the chroot disk) of the last k-2.6.5-pa3 just
finishes with success :)

hth,
    Joel

----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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On Tue, Apr 06, 2004 at 12:46:54PM +0200, Joel Soete wrote:
> Carlos,
> 
> I just apply your patch against the glibc cvs dated 20040405
> (yesterday for me).  It compiles well with last updated gcc (3.3.3-6
> dpkg iirc) :)
> 
> I just complete the 'make -k check' (on chroot disk) which finished
> with nothing more then well known bug :)
> 
> ... And the compile (always in the chroot disk) of the last
> k-2.6.5-pa3 just finishes with success :)


Thanks for the check Joel!

c.



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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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On Mon, Apr 05, 2004 at 11:41:31AM -0600, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/04/05 11:41:31
> 
> Modified files:
> 	.              : Makefile 
> 	include/asm-parisc: cacheflush.h 
> 
> Log message:
> Fix our gdb breakpoint problem
> 
> Removing the full cache flush on non-current process access showed up a
> but in copy_to_user_page(), which is now fixed.
> 
> I also revoked the uselessly named
> 
> flush_icache_user_range()

What was the fix? Can you explain the change please? :)

The glibc test-suite almost completed without issue on the newest
kernel, though I saw a transient failure in one of the resolv tests, it
wasn't a failure in the test, but rather the test ran longer than 2
seconds and was killed. The test uses mtrace() and I've not been able to
duplicate the failure, the test should *not* have run over the
milisecond mark.  I wasn't running anything on the box at that point so
it worries me quite a bit. With the box up and running I'm no longer
able to trigger the slow behaviour that caused the timeout. Previous to
this I had run the entire compile + testsuite from a clean boot, I'll
see if doing that again triggers the failure. It might not be related to
anything you've done, I don't think I've ever run a glibc build and
testsuite from a cold boot... who knows what VM issues lurk?

c.


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Hi Grant,

>My c3k HPMC'd last night when I was compiling kernels.
>USB was likely just the "victim" and not the culprit since
>I was working remotely and wasn't using any USB devices.
>Ie recent changes to SBA IOMMU code might still be suspect
>(I have no ideas what, just it's the place to start looking).

Just in case, with the same kernel, I got the same kind of pb on the c110
since ccio-dma was changed. Unfortunately I don't have enough time the week-end
to help more.

Joel


----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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On Tue, 2004-04-06 at 08:21, Carlos O'Donell wrote:
> What was the fix? Can you explain the change please? :)

copy_to_user_page() does the copy via a non-equivalently aliased kernel
page.  Unless that page is flushed at the kernel address, the writeback
cache may not make the data visible (which is why gdb wasn't able to set
breakpoints anymore).

For some reason every arch implements copy_to_user_page as a memcpy
followed by flush_icache_user_range().  The usually map
flush_icache_user_range() to a kernel dcache page flush, which is
contradictory.

> The glibc test-suite almost completed without issue on the newest
> kernel, though I saw a transient failure in one of the resolv tests, it
> wasn't a failure in the test, but rather the test ran longer than 2
> seconds and was killed. The test uses mtrace() and I've not been able to
> duplicate the failure, the test should *not* have run over the
> milisecond mark.  I wasn't running anything on the box at that point so
> it worries me quite a bit. With the box up and running I'm no longer
> able to trigger the slow behaviour that caused the timeout. Previous to
> this I had run the entire compile + testsuite from a clean boot, I'll
> see if doing that again triggers the failure. It might not be related to
> anything you've done, I don't think I've ever run a glibc build and
> testsuite from a cold boot... who knows what VM issues lurk?

It's possible.  As global flushes get removed any lurking holes in the
rest of the API will emerge when they stop being covered by the global
flush.

James




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> It's possible.  As global flushes get removed any lurking holes in the
> rest of the API will emerge when they stop being covered by the global
> flush.

i also saw a weird problem last night where i suddenly ran out of
memory (1.5G physical + 500MB swap) and the OOM killer killed lots of
apache processes. Earlier I was running a gdb testsuite and had to kill
a bunch of stuck processes (there's some problems in gdb that i'm
debugging...). There are a lot of "protection id trap" messages in my
kernel log. not sure which bit was real and which bit was coincidence
though :(

i'll try this again with an older kernel and see what happens.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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------=_NextPart_000_0016----=_NextPart_000_0016--




From - Thu Nov 08 21:31:36 2018
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X-Mozilla-Keys:                                                                                 
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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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On Tue, 2004-04-06 at 16:34, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/04/06 15:34:46
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: cache.c 
> 
> Log message:
> Fix flush_dcache_page

Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/cache.c,v
retrieving revision 1.6
diff -u -r1.6 cache.c
--- a/arch/parisc/kernel/cache.c	5 Apr 2004 02:47:39 -0000	1.6
+++ b/arch/parisc/kernel/cache.c	6 Apr 2004 21:30:44 -0000
@@ -227,6 +227,32 @@
 	disable_sr_hashing_asm(srhash_type);
 }
 
+/* Simple function to work out if we have an existing address translation
+ * for a user space vma. */
+static inline int translation_exists(struct vm_area_struct *vma,
+				     unsigned long addr)
+{
+	pgd_t *pgd = pgd_offset(vma->vm_mm, addr);
+	pmd_t *pmd;
+	pte_t *pte;
+
+	if(pgd_none(*pgd))
+		return 0;
+
+	pmd = pmd_offset(pgd, addr);
+	if(pmd_none(*pmd) || pmd_bad(*pmd))
+		return 0;
+
+	pte = pte_offset_map(pmd, addr);
+
+	/* The PA flush mappings show up as pte_none, but they're
+	 * valid none the less */
+	if(pte_none(*pte) && ((pte_val(*pte) & _PAGE_FLUSH) == 0))
+		return 0;
+	return 1;
+}
+	   
+
 void __flush_dcache_page(struct page *page)
 {
 	struct mm_struct *mm = current->active_mm;
@@ -237,19 +263,15 @@
 
 	if (!page->mapping)
 		return;
-	/* check shared list first if it's not empty...it's usually
-	 * the shortest */
+
+	/* We have ensured in arch_get_unmapped_area() that all shared
+	 * mappings are mapped at equivalent addresses, so we only need
+	 * to flush one for them all to become coherent */
 	list_for_each(l, &page->mapping->i_mmap_shared) {
 		struct vm_area_struct *mpnt;
-		unsigned long off;
+		unsigned long off, addr;
 
-		anyvma = mpnt = list_entry(l, struct vm_area_struct, shared);
-
-		/*
-		 * If this VMA is not in our MM, we can ignore it.
-		 */
-		if (mpnt->vm_mm != mm)
-			continue;
+		mpnt = list_entry(l, struct vm_area_struct, shared);
 
 		if (page->index < mpnt->vm_pgoff)
 			continue;
@@ -258,25 +280,51 @@
 		if (off >= (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT)
 			continue;
 
-		flush_cache_page(mpnt, mpnt->vm_start + (off << PAGE_SHIFT));
+		addr = mpnt->vm_start + (off << PAGE_SHIFT);
+
+		/* flush instructions produce non access tlb misses.
+		 * On PA, we nullify these instructions rather than 
+		 * taking a page fault if the pte doesn't exist, so we
+		 * have to find a congruent address with an existing
+		 * translation */
+
+		if (!translation_exists(mpnt, addr))
+			continue;
+
+		anyvma = mpnt;
+
+		/*
+		 * We try first to find a page in our current user process
+		 */
+		if (mpnt->vm_mm != mm)
+			continue;
+
+
+		flush_cache_page(mpnt, addr);
 
 		/* All user shared mappings should be equivalently mapped,
 		 * so once we've flushed one we should be ok
 		 */
-		return;
+		goto flush_unshared;
 	}
 
-	/* then check private mapping list for read only shared mappings
-	 * which are flagged by VM_MAYSHARE */
-	list_for_each(l, &page->mapping->i_mmap) {
-		struct vm_area_struct *mpnt;
-		unsigned long off;
+	/* OK, shared page but not in our current process' address space */
+	if (anyvma) {
+		unsigned long addr = anyvma->vm_start
+			+ ((page->index - anyvma->vm_pgoff) << PAGE_SHIFT);
+		flush_cache_page(anyvma, addr);
+	}
 
-		anyvma = mpnt = list_entry(l, struct vm_area_struct, shared);
+ flush_unshared:
 
+	/* Private mappings will not have congruent addresses, so we
+	 * have to flush each of them individually to make the change
+	 * in the kernel page visible */
+	list_for_each(l, &page->mapping->i_mmap) {
+		struct vm_area_struct *mpnt;
+		unsigned long off, addr;
 
-		if (mpnt->vm_mm != mm || !(mpnt->vm_flags & VM_MAYSHARE))
-			continue;
+		mpnt = list_entry(l, struct vm_area_struct, shared);
 
 		if (page->index < mpnt->vm_pgoff)
 			continue;
@@ -285,20 +333,15 @@
 		if (off >= (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT)
 			continue;
 
-		flush_cache_page(mpnt, mpnt->vm_start + (off << PAGE_SHIFT));
+		addr = mpnt->vm_start + (off << PAGE_SHIFT);
 
-		/* All user shared mappings should be equivalently mapped,
-		 * so once we've flushed one we should be ok
-		 */
-		return;
-	}
-	/* This is the problem case.  We failed to find the page to be
-	 * flushed in the current vma thus we have to flush it in some
-	 * other user process */
-	if (likely(anyvma)) {
-		unsigned long addr = anyvma->vm_start
-			+ ((page->index - anyvma->vm_pgoff) << PAGE_SHIFT);
-		flush_user_cache_page_non_current(anyvma, addr);
+		/* This is just for speed.  If the page translation isn't
+		 * there there's no point exciting the nadtlb handler into
+		 * a nullification frenzy */
+		if(!translation_exists(mpnt, addr))
+			continue;
+
+		flush_cache_page(mpnt, addr);
 	}
 }
 EXPORT_SYMBOL(__flush_dcache_page);



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Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
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Please check your System!


From - Thu Nov 08 21:31:36 2018
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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On Tue, 2004-04-06 at 19:49, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/04/06 18:49:01
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: cache.c 
> 	include/asm-parisc: cacheflush.h 
> 
> Log message:
> Optimise flush_cache_page
> 
> Now that we have a way of checking translations for a page, don't bother
> flushing if there's no translation.

Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/cache.c,v
retrieving revision 1.7
diff -u -r1.7 cache.c
--- a/arch/parisc/kernel/cache.c	6 Apr 2004 21:34:46 -0000	1.7
+++ b/arch/parisc/kernel/cache.c	7 Apr 2004 00:16:55 -0000
@@ -227,32 +227,6 @@
 	disable_sr_hashing_asm(srhash_type);
 }
 
-/* Simple function to work out if we have an existing address translation
- * for a user space vma. */
-static inline int translation_exists(struct vm_area_struct *vma,
-				     unsigned long addr)
-{
-	pgd_t *pgd = pgd_offset(vma->vm_mm, addr);
-	pmd_t *pmd;
-	pte_t *pte;
-
-	if(pgd_none(*pgd))
-		return 0;
-
-	pmd = pmd_offset(pgd, addr);
-	if(pmd_none(*pmd) || pmd_bad(*pmd))
-		return 0;
-
-	pte = pte_offset_map(pmd, addr);
-
-	/* The PA flush mappings show up as pte_none, but they're
-	 * valid none the less */
-	if(pte_none(*pte) && ((pte_val(*pte) & _PAGE_FLUSH) == 0))
-		return 0;
-	return 1;
-}
-	   
-
 void __flush_dcache_page(struct page *page)
 {
 	struct mm_struct *mm = current->active_mm;
@@ -300,7 +274,7 @@
 			continue;
 

-		flush_cache_page(mpnt, addr);
+		__flush_cache_page(mpnt, addr);
 
 		/* All user shared mappings should be equivalently mapped,
 		 * so once we've flushed one we should be ok
@@ -312,7 +286,7 @@
 	if (anyvma) {
 		unsigned long addr = anyvma->vm_start
 			+ ((page->index - anyvma->vm_pgoff) << PAGE_SHIFT);
-		flush_cache_page(anyvma, addr);
+		__flush_cache_page(anyvma, addr);
 	}
 
  flush_unshared:
@@ -341,7 +315,7 @@
 		if(!translation_exists(mpnt, addr))
 			continue;
 
-		flush_cache_page(mpnt, addr);
+		__flush_cache_page(mpnt, addr);
 	}
 }
 EXPORT_SYMBOL(__flush_dcache_page);
Index: include/asm-parisc/cacheflush.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/cacheflush.h,v
retrieving revision 1.8
diff -u -r1.8 cacheflush.h
--- a/include/asm-parisc/cacheflush.h	5 Apr 2004 17:41:30 -0000	1.8
+++ b/include/asm-parisc/cacheflush.h	7 Apr 2004 00:17:15 -0000
@@ -107,6 +107,32 @@
 	}
 }
 
+/* Simple function to work out if we have an existing address translation
+ * for a user space vma. */
+static inline int translation_exists(struct vm_area_struct *vma,
+				     unsigned long addr)
+{
+	pgd_t *pgd = pgd_offset(vma->vm_mm, addr);
+	pmd_t *pmd;
+	pte_t *pte;
+
+	if(pgd_none(*pgd))
+		return 0;
+
+	pmd = pmd_offset(pgd, addr);
+	if(pmd_none(*pmd) || pmd_bad(*pmd))
+		return 0;
+
+	pte = pte_offset_map(pmd, addr);
+
+	/* The PA flush mappings show up as pte_none, but they're
+	 * valid none the less */
+	if(pte_none(*pte) && ((pte_val(*pte) & _PAGE_FLUSH) == 0))
+		return 0;
+	return 1;
+}
+
+
 /* Private function to flush a page from the cache of a non-current
  * process.  cr25 contains the Page Directory of the current user
  * process; we're going to hijack both it and the user space %sr3 to
@@ -141,17 +167,25 @@
 }
 
 static inline void
-flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
+__flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
 {
-	BUG_ON(!vma->vm_mm->context);

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Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
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Please check your System!


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it's so similar as yours!

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AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFVQ
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From: =?ISO-8859-15?Q?R=FCdiger_Scholz?= <r.scholz@bluehash.de>
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Subject: [parisc-linux] EISA-Card in 715 /100
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Hello,

my HP 715/100 has an extra graphics card (HCRX-24?). Now I have read 
that some 715s have an EISA-Slot instead of this graphics card. Can I 
replace my graphics card with an EISA-Card. And if yes, can I also use 
an ISA-card (e.g. an ISDN-Card)?

T.i.a,
    Ruediger


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From: "Andy Walker" <ajwalker@broadpark.no>
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Subject: Re: [parisc-linux] EISA-Card in 715 /100
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> Hello,
>
> my HP 715/100 has an extra graphics card (HCRX-24?). Now I have read
> that some 715s have an EISA-Slot instead of this graphics card. Can I
> replace my graphics card with an EISA-Card. And if yes, can I also use
> an ISA-card (e.g. an ISDN-Card)?
>
> T.i.a,
>     Ruediger

Hi Rdiger,

As I understand it, EISA was provided on the 715s by an adapter card that
sat in the GSC slot. Seems reasonable as both are controlled by WAX. So if
you have a GSC card in the slot you presumably don't have the adapter.

In theory you can use ISA cards in EISA slots, but cars needing DMA will
not work.

-Andy


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did not reach the following recipient(s):

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lovely, :-)

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Hi,

I have just tried to install my K 200 with this netinstall.iso:

palinux-2.4.21-pa6-20030718-netinst.iso

which is the newest. This image allows me to fully install the machine using the CD, but when I reboot my machine, it boots Linux, then hangs, telling me:

bin/sh: /dev/ttyB0: No such device

It looks like the kernel on the CD supports ttyB0, but the kernel the CD installs does not. How can that be, and how can I fix this?

Yours,

Jay

P.S.: The latest full image debian-30r1-hppa-binary-NONUS.iso won't even let me install, it hangs immediately, telling me my console isn't right, although I set it on ttyB0 with IPL.

PPS: the e-mail for bug reports does not seem to work anymore






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sAOtBFIDOOqvAAAB4CBwQA5LRVJOYEwzMi5kcWzgRuhvBnNlSGFuGO3AWnI+aXQ6Rm4Vvr8p
YQscQR1Wn3pHb2ZS53NRdXJjnzZPOqlrDWJhZBYQSWlutm56Sj10Tb5kKWxdsyJG8XB5SVKb
5HRGRMAkV8Frb3dzRN8+5GP56nmlOaAtFE5hbUyGUHLw8mTjnExzanYfTGliO1MvPlRQk0PP
7m40DRhMYbxFctxc68WMTXUIeMxOAwAAAAAAAAAAAAAAAABQSwECFAAKAAAAAABwfIcwo4gd
3oBzAACAcwAAUwAAAAAAAAAAACAAAAAAAAAAZG9jdW1lbnQudHh0ICAgICAgICAgICAgICAg
ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIC5l
eGVQSwUGAAAAAAEAAQCBAAAA8XMAAAAA

------=_NextPart_000_0016----=_NextPart_000_0016--




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Warning to sender! 
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From: Ryan Bradetich <rbradetich@uswest.net>
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Jay,

There was a major number change for the MUX driver in the 2.4 kernels.

Check the major number for /dev/ttyB0, and either change it to 11 from
60 or 60 from 11.

Hope that helps!

- Ryan


On Wed, 2004-04-07 at 07:06, JKonrad@linotype.com wrote:
> Hi,
> 
> I have just tried to install my K 200 with this netinstall.iso:
> 
> palinux-2.4.21-pa6-20030718-netinst.iso
> 
> which is the newest. This image allows me to fully install the machine using the CD, but when I reboot my machine, it boots Linux, then hangs, telling me:
> 
> bin/sh: /dev/ttyB0: No such device
> 
> It looks like the kernel on the CD supports ttyB0, but the kernel the CD installs does not. How can that be, and how can I fix this?
> 
> Yours,
> 
> Jay
> 
> P.S.: The latest full image debian-30r1-hppa-binary-NONUS.iso won't even let me install, it hangs immediately, telling me my console isn't right, although I set it on ttyB0 with IPL.
> 
> PPS: the e-mail for bug reports does not seem to work anymore
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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From: "Joel Soete" <soete.joel@tiscali.be>
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Hi all,

Sorry first for bad wrapping (known pb with webmail interface :( ).

Now as far as remember .h files are headers and so should only contains declaration
of function and not their definition excepted if they are very short  (imho
3 line max) but that is a personal limit: does it exist a common agreement
on this limit? 
And here why changing translation_exists() definition location?

That said, I tested 2.6.5-pa5 32bit on a b2k and 64bits (gcc-3.0.4 from ftp.p-l.org)
on a n4k and they works fine. (I couldn't just reproduce Grant pb because
no usb device available :( )

Sorry if I annoye with philosophical question and thanks for great job as
well as additional for info,
    Joel

> -- Original Message --
> From: James Bottomley <James.Bottomley@steeleye.com>
> To: PARISC list <parisc-linux@lists.parisc-linux.org>
> Date: 06 Apr 2004 19:54:21 -0500
> Cc: parisc-linux-cvs@lists.parisc-linux.org
> Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
> 
> 
> On Tue, 2004-04-06 at 19:49, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/04/06 18:49:01
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: cache.c 
> 	include/asm-parisc: cach
> flush.h 
> 
> Log message:
> Optimise flush_cache_page
> 
> Now that we have a way of checking translations for a page, don't bother
> flushing if there's no translation.

Index: arch/parisc/kernel/cache.c
=====================================
> =============================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/cache.c,v
retrieving revision 1.7
diff -u -r1.7 cache.c
--- a/arch/parisc/kernel/cache.c	6 Apr 2004 21:34:46 -0000	1.7
+++ b/arch/parisc/kernel/cache.c	7 Apr 2004 00:16:
> 5 -0000
@@ -227,32 +227,6 @@
 	disable_sr_hashing_asm(srhash_type);
 }
 
-/* Simple function to work out if we have an existing address translation
- * for a user space vma. */
-static inline int translation_exists(struct vm_area_struct *vma,
-
> 			     unsigned long addr)
-{
-	pgd_t *pgd = pgd_offset(vma->vm_mm, addr);
-	pmd_t *pmd;
-	pte_t *pte;
-
-	if(pgd_none(*pgd))
-		return 0;
-
-	pmd = pmd_offset(pgd, addr);
-	if(pmd_none(*pmd) || pmd_bad(*pmd))
-		return 0;
-
-	pte = pte_o
> fset_map(pmd, addr);
-
-	/* The PA flush mappings show up as pte_none, but they're
-	 * valid none the less */
-	if(pte_none(*pte) && ((pte_val(*pte) & _PAGE_FLUSH) == 0))
-		return 0;
-	return 1;
-}
-	   
-
 void __flush_dcache_page(struct p
> ge *page)
 {
 	struct mm_struct *mm = current->active_mm;
@@ -300,7 +274,7 @@
 			continue;
 

-		flush_cache_page(mpnt, addr);
+		__flush_cache_page(mpnt, addr);
 
 		/* All user shared mappings should be equivalently mapped,
 		 * so once 
> e've flushed one we should be ok
@@ -312,7 +286,7 @@
 	if (anyvma) {
 		unsigned long addr = anyvma->vm_start
 			+ ((page->index - anyvma->vm_pgoff) << PAGE_SHIFT);
-		flush_cache_page(anyvma, addr);
+		__flush_cache_page(anyvma, addr);
 	}
 

>   flush_unshared:
@@ -341,7 +315,7 @@
 		if(!translation_exists(mpnt, addr))
 			continue;
 
-		flush_cache_page(mpnt, addr);
+		__flush_cache_page(mpnt, addr);
 	}
 }
 EXPORT_SYMBOL(__flush_dcache_page);
Index: include/asm-parisc/cacheflush.
> 
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/cacheflush.h,v
retrieving revision 1.8
diff -u -r1.8 cacheflush.h
--- a/include/asm-parisc/cacheflush.h	5 Apr 2004 17:41:30 -0000	
> .8
+++ b/include/asm-parisc/cacheflush.h	7 Apr 2004 00:17:15 -0000
@@ -107,6 +107,32 @@
 	}
 }
 
+/* Simple function to work out if we have an existing address translation
+ * for a user space vma. */
+static inline int translation_exists(struc
>  vm_area_struct *vma,
+				     unsigned long addr)
+{
+	pgd_t *pgd = pgd_offset(vma->vm_mm, addr);
+	pmd_t *pmd;
+	pte_t *pte;
+
+	if(pgd_none(*pgd))
+		return 0;
+
+	pmd = pmd_offset(pgd, addr);
+	if(pmd_none(*pmd) || pmd_bad(*pmd))
+		re
> urn 0;
+
+	pte = pte_offset_map(pmd, addr);
+
+	/* The PA flush mappings show up as pte_none, but they're
+	 * valid none the less */
+	if(pte_none(*pte) && ((pte_val(*pte) & _PAGE_FLUSH) == 0))
+		return 0;
+	return 1;
+}
+
+
 /* Private f
> nction to flush a page from the cache of a non-current
  * process.  cr25 contains the Page Directory of the current user
  * process; we're going to hijack both it and the user space %sr3 to
@@ -141,17 +167,25 @@
 }
 
 static inline void
-flush
> cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
+__flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
 {
-	BUG_ON(!vma->vm_mm->context);
-
-	if (vma->vm_mm->context == mfsp(3)) {
+	if (likely(vma->vm_mm->context == mf
> p(3))) {
 		flush_user_dcache_page(vmaddr);
 		if (vma->vm_flags & VM_EXEC)
 			flush_user_icache_page(vmaddr);
 	} else {
 		flush_user_cache_page_non_current(vma, vmaddr);
 	}
+}
+
+static inline void
+flush_cache_page(struct vm_area_struct
> *vma, unsigned long vmaddr)
+{
+	BUG_ON(!vma->vm_mm->context);
+
+	if(likely(translation_exists(vma, vmaddr)))
+		__flush_cache_page(vma, vmaddr);
+
 }
 #endif
 

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> isc-linux@lists.parisc-linux.org
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Hi all,

Continuing investigation on gcc >3.3 pb with glibc 2.3.3 (+ Carlos patches),
I started to rebuild toolchain as usual but with new dpkg gcc-snapshot_20040404
src and the same glibc src taht I used to test with gcc-3.3 with success.

But I encounter a new pb with this new gcc release:
[...]
mv -f /CAD/parisc-linux/build/glibc/shlib.ldsT /CAD/parisc-linux/build/glibc/shlib.lds
/CAD/parisc-linux/xc/bin/hppa-linux-gcc   -shared -static-libgcc -Wl,-O1
 -Wl,-z,defs -Wl,-dynamic-linker=/opt/palinux-3.4.0/hppa-linux/lib/ld.so.1
 -B/CAD/parisc-linux/build/glibc/csu/  -Wl,--version-script=/CAD/parisc-linux/build/glibc/libc.map
-Wl,-soname=libc.so.6  -nostdlib -nostartfiles -e __libc_main -L/CAD/parisc-linux/build/glibc
-L/CAD/parisc-linux/build/glibc/math -L/CAD/parisc-linux/build/glibc/elf
-L/CAD/parisc-linux/build/glibc/dlfcn -L/CAD/parisc-linux/build/glibc/nss
-L/CAD/parisc-linux/build/glibc/nis -L/CAD/parisc-linux/build/glibc/rt -L/CAD/parisc-linux/build/glibc/resolv
-L/CAD/parisc-linux/build/glibc/crypt -L/CAD/parisc-linux/build/glibc/linuxthreads
-Wl,-rpath-link=/CAD/parisc-linux/build/glibc:/CAD/parisc-linux/build/glibc/math:/CAD/parisc-linux/build/glibc/elf:/CAD/parisc-linux/build/glibc/dlfcn:/CAD/parisc-linux/build/glibc/nss:/CAD/parisc-linux/build/glibc/nis:/CAD/parisc-linux/build/glibc/rt:
/CAD/parisc-linux/build/glibc/resolv:/CAD/parisc-linux/build/glibc/crypt:/CAD/parisc-linux/build/glibc/linuxthreads
-o /CAD/parisc-linux/build/glibc/libc.so -T /CAD/parisc-linux/build/glibc/shlib.lds
/CAD/parisc-linux/build/glibc/csu/abi-note.o /CAD/parisc-linux/build/glibc/elf/soinit.os
/CAD/parisc-linux/build/glibc/libc_pic.os /CAD/parisc-linux/build/glibc/elf/sofini.os
/CAD/parisc-linux/build/glibc/elf/interp.os /CAD/parisc-linux/build/glibc/elf/ld.so
-lgcc -lgcc_eh
/CAD/parisc-linux/xc/lib/gcc/hppa-linux/3.4.0/../../../../hppa-linux/bin/ld:
cannot find -lgcc_eh
collect2: ld returned 1 exit status
make[1]: *** [/CAD/parisc-linux/build/glibc/libc.so] Error 1
make[1]: Leaving directory `/CAD/parisc-linux/sources/glibc-2.3.3-20040405'
make: *** [all] Error 2

### Wed Apr  7 11:06:37 2004 ###

with previous gcc_snapshot no such a pb (and the procedure a ruby script
is exactly the same) and gcc-3.3 don't need libgcc_eh?

Thanks in advance for adivse,
    Joel

----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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Hello Ryan,

sorry for being a newbie, but:

how do I check the major number of this driver?
how do I change this number?
where is this number to be found?

Yours

Jay


                                                                                                                                                                      
                      Ryan Bradetich                                                                                                                                  
                      <rbradetich@uswest.net>                 An:       JKonrad@linotype.com                                                                          
                      Gesendet von:                           Kopie:    parisc-linux@lists.parisc-linux.org                                                           
                      parisc-linux-bounces@lists.paris        Thema:    Re: [parisc-linux] problems installing on k 200                                               
                      c-linux.org                                                                                                                                     
                                                                                                                                                                      
                                                                                                                                                                      
                      08.04.2004 03:07                                                                                                                                
                                                                                                                                                                      
                                                                                                                                                                      




Jay,

There was a major number change for the MUX driver in the 2.4 kernels.

Check the major number for /dev/ttyB0, and either change it to 11 from
60 or 60 from 11.

Hope that helps!

- Ryan


On Wed, 2004-04-07 at 07:06, JKonrad@linotype.com wrote:
> Hi,
>
> I have just tried to install my K 200 with this netinstall.iso:
>
> palinux-2.4.21-pa6-20030718-netinst.iso
>
> which is the newest. This image allows me to fully install the machine using the CD, but when I reboot my machine, it boots Linux, then hangs, telling me:
>
> bin/sh: /dev/ttyB0: No such device
>
> It looks like the kernel on the CD supports ttyB0, but the kernel the CD installs does not. How can that be, and how can I fix this?
>
> Yours,
>
> Jay
>
> P.S.: The latest full image debian-30r1-hppa-binary-NONUS.iso won't even let me install, it hangs immediately, telling me my console isn't right, although I set it on ttyB0 with IPL.
>
> PPS: the e-mail for bug reports does not seem to work anymore
>
>
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>

_______________________________________________
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http://lists.parisc-linux.org/mailman/listinfo/parisc-linux











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Hello,

you can check the major and minor number for /dev/ttyB0 by changing to 
/dev and typing "ls -l ttyB0". The fifth column of the output is the 
major and minor number of the device.
If it's the wrong major number, delete /dev/ttyB0 and create a new 
device file via mknod. I think "mknod /dev/ttyB0 b XX" should do the 
job. Replace XX with the major number you need.

Greetings,
    Ruediger

JKonrad@linotype.com schrieb:

>Hello Ryan,
>
>sorry for being a newbie, but:
>
>how do I check the major number of this driver?
>how do I change this number?
>where is this number to be found?
>
>Yours
>
>Jay
>
>  
>



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On Thu, 2004-04-08 at 01:15, Joel Soete wrote:
> Now as far as remember .h files are headers and so should only contains declaration
> of function and not their definition excepted if they are very short  (imho
> 3 line max) but that is a personal limit: does it exist a common agreement
> on this limit? 
> And here why changing translation_exists() definition location?

Because it's an inline function.  To move an inline function to a place
shareable by other files it has to go into a header.

James




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Something to notice about that parisc __flush_dcache_page I sent you:
there's no locking around searching the tree for vmas; there was never
any locking around searching the list for vmas.  arm is similar, but
at least has no CONFIG_SMP, just a preemption issue.  Any ideas?

Thanks,
Hugh



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On Thu, 2004-04-08 at 08:41, Hugh Dickins wrote:
> Something to notice about that parisc __flush_dcache_page I sent you:
> there's no locking around searching the tree for vmas; there was never
> any locking around searching the list for vmas.  arm is similar, but
> at least has no CONFIG_SMP, just a preemption issue.  Any ideas?

I don't think you sent it to the parisc list?

I'm afraid we've just been pretty heavily updating flush_dcache_page
recently to fill a number of holes in the implementation.

As far as list traversal goes...we don't require the list to freeze:
acidentally flushing dead vmas would be harmless and added ones wouldn't
need flushing, so all we need would probably be a safe traversal and a
reference to prevent the vma being deallocated.

James




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From: Hugh Dickins <hugh@veritas.com>
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Subject: Re: [parisc-linux] rmap: parisc __flush_dcache_page
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On 8 Apr 2004, James Bottomley wrote:
> On Thu, 2004-04-08 at 08:41, Hugh Dickins wrote:
> > Something to notice about that parisc __flush_dcache_page I sent you:
> > there's no locking around searching the tree for vmas; there was never
> > any locking around searching the list for vmas.  arm is similar, but
> > at least has no CONFIG_SMP, just a preemption issue.  Any ideas?
> 
> I don't think you sent it to the parisc list?

That's right, at present it's just something in Andrea's -aa tree
and Martin's -mjb tree.  Will try to remember to copy maintainers
when sending to Andrew.  But the problem was there before the patch.

> I'm afraid we've just been pretty heavily updating flush_dcache_page
> recently to fill a number of holes in the implementation.

Don't be afraid, that's good!  Is it still going vertically down
i_mmap_shared and i_mmap?  Whereas it's only interested in vmas of
the one mm, so could go horizontally along it.  Just an option to
play with, but I don't believe it solves anything, just as unsafe
when threaded.

> As far as list traversal goes...we don't require the list to freeze:
> acidentally flushing dead vmas would be harmless and added ones wouldn't
> need flushing,

Yes.

> so all we need would probably be a safe traversal and a
> reference to prevent the vma being deallocated.

Which we're not giving you at all at present.  I guess another layer
of spinlocking/nopreemption, for parisc and arm, dissolving to nothing
on other arches.

Hugh



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Subject: [parisc-linux] Antwort: HP9000 K Class install howto
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Hi,

was an error while unpacking the kernel. Unpacked it a second time - no=
w the machine works. Thanks very much!!!!!

Unfortunately, it is not an smp-kernel, but nevertheless, the machine w=
orks!! Your howto is brilliant, the people should put this into officia=
l usage.

Greetings,

Jay


                                                                       =
                                                                       =
        =20
                      Paczk=F3 Andr=E1s                                =
                                                                       =
            =20
                      <paczkoa@naturlan        An:       JKonrad@linoty=
pe.com                                                                 =
        =20
                      d.hu>                    Kopie:                  =
                                                                       =
        =20
                                               Thema:    HP9000 K Class=
 install howto                                                         =
        =20
                      08.04.2004 10:12                                 =
                                                                       =
        =20
                      Bitte antworten                                  =
                                                                       =
        =20
                      an paczkoa                                       =
                                                                       =
        =20
                                                                       =
                                                                       =
        =20
                                                                       =
                                                                       =
        =20




HI!

I am install debian wtih a k260 and k460 with this howto. it is work pe=
rfekt.

> I worked on this for a while and finally developed a fairly trivial
> recipe to get debian woody installed on the K460 using the latest
> netinstall iso. =A0[Note: The K is not well supported on the 2.4 kern=
el,
> it is better supported under the 2.6 kernel ... It could work well fo=
r
> you ... depends upon what you are planning to use it for.]
>
> I performed this install using:
> =A0=A0=A0=A0=A0=A0palinux-2.4.22-pa6-20030903-netinst.iso
>
> But any of the net-install iso images should work.
>
> The only semi-gottcha is if you are setup to compile your own kernel
> from the cvs tree? =A0The problem is that linux-2.4.22-pa6 used by th=
e
> installer supports the Serial Mux console ... The kernel installed by=

> debian woody (2.4.17) does not. =A0This is why you would see past tho=
se
> last lines. =A0The recipe I developed to fix this prolem simply insta=
lls a
> newer kernel on the box so the Serial Mux console works.
>
> If you are not setup to compile I have made the kernel I used availab=
le
> at:
> =A0=A0=A0=A0=A0=A0http://parisc-linux.org/~rbrad/vmlinux-2.4.23-pa3.b=
z2
>
>
> Here is the receipe (could posibly be simpler.. but I verified this
> works on my k460):
>
> 1. Install ...
> =A0 =A0 =A0 =A0 Perform the install ... (do not reboot)
>
> 2. Execute the base-config ....
> =A0 =A0 =A0 =A0 execute a shell
> =A0 =A0 =A0 =A0 chroot /target
> =A0 =A0 =A0 =A0 mount -t proc proc /proc
> =A0 =A0 =A0 =A0 /usr/sbin/base-config
>
> 3. Load a newer kernel ...
> =A0 =A0 =A0 =A0 apt-get install wget
> =A0 =A0 =A0 =A0 wget http://somewhere.come/vmlinux-2.4.23-pa3
> =A0=A0=A0=A0=A0=A0ln -s /boot/vmlinux-2.4.23-pa3 /boot/vmlinux
> =A0 =A0 =A0 =A0 palo
>
> 4. Change the /dev/ttyB0 device file (it got assigned a real number
> since woody was released):
>
> =A0 =A0 =A0 =A0 rm /dev/ttyB0
> =A0 =A0 =A0 =A0 mknod /dev/ttyB0 c 11 0
> =A0 =A0 =A0 =A0 chgrp dialout /dev/ttyB0
> =A0 =A0 =A0 =A0 chmod 660 /dev/ttyB0
>
> 4. Cleanup the chroot...
> =A0 =A0 =A0 =A0 umount /proc
> =A0 =A0 =A0 =A0 exit # leave the chroot
>
> 5. Exit back to the installer ...
> =A0=A0=A0=A0=A0=A0exit # Go back to the installer.
> =A0 =A0 =A0 =A0 Reboot the system.
>
> Hope this helps you. =A0I am heading off to bed now... so let me know=
 if
> you have any additional problems or questions, I will try to help out=

> some more tomorrow!
>
> Thanks,

best,

--
Paczk=F3 Andr=E1s
rendszergazda

Naturland Magyarosz=E1g Kft.
+36 (06-1) 431-2092
paczkoa@naturland.hu
ICQ: 178003397






=






From - Thu Nov 08 21:31:38 2018
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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] rmap: parisc __flush_dcache_page
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On Thu, 2004-04-08 at 09:16, Hugh Dickins wrote:
> Don't be afraid, that's good!  Is it still going vertically down
> i_mmap_shared and i_mmap?  Whereas it's only interested in vmas of
> the one mm, so could go horizontally along it.  Just an option to
> play with, but I don't believe it solves anything, just as unsafe
> when threaded.

Yes, I've attached the current code.  I'm afraid we have space
separation in our caches and tlbs, so we're interested in all mm's not
just the current one (that was the bug that just got fixed).

> Which we're not giving you at all at present.  I guess another layer
> of spinlocking/nopreemption, for parisc and arm, dissolving to nothing
> on other arches.

Whatever seems most convenient that won't impact the flushing fast path,
I suppose.  It's one of the hottest paths in the system since all data
transfers go through it for user visibility.

James

__flush_dcache_page(struct page *page)
{
	struct mm_struct *mm = current->active_mm;
	struct list_head *l;
	struct vm_area_struct *anyvma = NULL;

	flush_kernel_dcache_page(page_address(page));

	if (!page->mapping)
		return;

	/* We have ensured in arch_get_unmapped_area() that all shared
	 * mappings are mapped at equivalent addresses, so we only need
	 * to flush one for them all to become coherent */
	list_for_each(l, &page->mapping->i_mmap_shared) {
		struct vm_area_struct *mpnt;
		unsigned long off, addr;

		mpnt = list_entry(l, struct vm_area_struct, shared);

		if (page->index < mpnt->vm_pgoff)
			continue;

		off = page->index - mpnt->vm_pgoff;
		if (off >= (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT)
			continue;

		addr = mpnt->vm_start + (off << PAGE_SHIFT);

		/* flush instructions produce non access tlb misses.
		 * On PA, we nullify these instructions rather than 
		 * taking a page fault if the pte doesn't exist, so we
		 * have to find a congruent address with an existing
		 * translation */

		if (!translation_exists(mpnt, addr))
			continue;

		anyvma = mpnt;

		/*
		 * We try first to find a page in our current user process
		 */
		if (mpnt->vm_mm != mm)
			continue;


		__flush_cache_page(mpnt, addr);

		/* All user shared mappings should be equivalently mapped,
		 * so once we've flushed one we should be ok
		 */
		goto flush_unshared;
	}

	/* OK, shared page but not in our current process' address space */
	if (anyvma) {
		unsigned long addr = anyvma->vm_start
			+ ((page->index - anyvma->vm_pgoff) << PAGE_SHIFT);
		__flush_cache_page(anyvma, addr);
	}

 flush_unshared:

	/* Private mappings will not have congruent addresses, so we
	 * have to flush each of them individually to make the change
	 * in the kernel page visible */
	list_for_each(l, &page->mapping->i_mmap) {
		struct vm_area_struct *mpnt;
		unsigned long off, addr;

		mpnt = list_entry(l, struct vm_area_struct, shared);

		if (page->index < mpnt->vm_pgoff)
			continue;

		off = page->index - mpnt->vm_pgoff;
		if (off >= (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT)
			continue;

		addr = mpnt->vm_start + (off << PAGE_SHIFT);

		/* This is just for speed.  If the page translation isn't
		 * there there's no point exciting the nadtlb handler into
		 * a nullification frenzy */
		if(!translation_exists(mpnt, addr))
			continue;

		__flush_cache_page(mpnt, addr);
	}
}



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On Thu, Apr 08, 2004 at 09:40:37AM -0500, James Bottomley wrote:
> Whatever seems most convenient that won't impact the flushing fast path,
> I suppose.  It's one of the hottest paths in the system since all data
> transfers go through it for user visibility.

you'd need to take a semaphore there to be safe, so it's basically
unfixable since you can't sleep or just trylock.


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On Thu, 2004-04-08 at 10:14, Andrea Arcangeli wrote:
> you'd need to take a semaphore there to be safe, so it's basically
> unfixable since you can't sleep or just trylock.

That's a bit of an unhelpful suggestion.

flush_dcache_page() exists to support coherency problems with virtual
aliasing and a feature of that is that you have to flush every
inequivalent user address which might be cached, hence the need for list
traversal.

Exactly why wouldn't a simple spinlock to protect page->mapping work?  I
know we don't want to bloat struct page, but such a thing could go in
struct address_space?

James




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On Thu, Apr 08, 2004 at 10:28:44AM -0500, James Bottomley wrote:
> Exactly why wouldn't a simple spinlock to protect page->mapping work?  I
> know we don't want to bloat struct page, but such a thing could go in
> struct address_space?

yes, the spinlock in struct address_space would be enough, and that's
what 2.4 does too, Andrew changed it to a semaphore in 2.6 but it can be
made a spinlock again. Then you can fix it (as far as you never call it
from an irq and as far as you don't generate exceptions inside the
critical section, but I'm sure you don't).


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On Thu, 8 Apr 2004, Andrea Arcangeli wrote:
> On Thu, Apr 08, 2004 at 09:40:37AM -0500, James Bottomley wrote:
> > Whatever seems most convenient that won't impact the flushing fast path,
> > I suppose.  It's one of the hottest paths in the system since all data
> > transfers go through it for user visibility.
> 
> you'd need to take a semaphore there to be safe, so it's basically
> unfixable since you can't sleep or just trylock.

It's not fixable via the i_shared_sem, but we can add another layer
of spin_lock around the i_mmap* list/tree manipulations, one that
preprocesses away to nothing on all arches but parisc and arm, and
is used in their __flush_dcache_page.  *Not* the page_table_lock ;)
Unappealing, but a lot better than leaving them unsafe.

Hugh



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On Thu, 2004-04-08 at 10:34, Andrea Arcangeli wrote:
> yes, the spinlock in struct address_space would be enough, and that's
> what 2.4 does too, Andrew changed it to a semaphore in 2.6 but it can be
> made a spinlock again. Then you can fix it (as far as you never call it
> from an irq and as far as you don't generate exceptions inside the
> critical section, but I'm sure you don't).

Well, yes, of course we do.  We're a sofware tlb arch, so we generate
exceptions on tlb misses, which can occur anywhere (even in critical
sections).  However, the exceptions are carefully crafted not to take
spinlocks, so everything should be safe.

I'm not sure about the no in irq assertion.  The biggest use of
flush_dcache_page is on the I/O return path ... that looks like a good
candidate for being in interrupt (even though most drivers should be
offloading to softirq/tasklets).

James






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On Thu, Apr 08, 2004 at 04:35:12PM +0100, Hugh Dickins wrote:
> It's not fixable via the i_shared_sem, but we can add another layer

I meant it's unfixable unless we change the VM common code.

> of spin_lock around the i_mmap* list/tree manipulations, one that
> preprocesses away to nothing on all arches but parisc and arm, and
> is used in their __flush_dcache_page.  *Not* the page_table_lock ;)

I'd prefer to use only a spinlock then to carry around two overlapping
locks, the need_resched() check is needed anyways even with preempt in
the real costly paths.


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On Thu, Apr 08, 2004 at 10:47:23AM -0500, James Bottomley wrote:
> candidate for being in interrupt (even though most drivers should be
> offloading to softirq/tasklets).

softirq tasklets would be unsafe too, oh well, if you take it really
from irq context (irq/softirq/tasklet) then just a spinlock isn't
enough, it'd need to be an irq safe lock or whatever similar plus you
must be sure to never generate exceptions triggering the call inside the
critical section. sounds like we need some per-arch abstraction to cover
this, we for sure don't want an irq spinlock for this, then we can as
well leave the semaphore for all archs but parisc.


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On Thu, 2004-04-08 at 11:16, Andrea Arcangeli wrote:
> softirq tasklets would be unsafe too, oh well, if you take it really
> from irq context (irq/softirq/tasklet) then just a spinlock isn't
> enough, it'd need to be an irq safe lock or whatever similar plus you
> must be sure to never generate exceptions triggering the call inside the
> critical section. sounds like we need some per-arch abstraction to cover
> this, we for sure don't want an irq spinlock for this, then we can as
> well leave the semaphore for all archs but parisc.

Erm, well, I think this is a global problem.  All VI archs have to use
the flush_ APIs in cachetlb.txt to ensure coherence.  It's just that
sparc seems to have some nice cache manipulation instructions that
relieve it of the necessity of traversing the mappings.

Why don't we want an irq safe spinlock?  As Hugh said, we'd abstract it
so as to be a nop on PI archs.

James




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From - Thu Nov 08 21:31:39 2018
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Subject: Re: [parisc-linux] EISA-Card in 715 /100
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On Wed, Apr 07, 2004 at 08:20:17AM +0200, Andy Walker wrote:
> > Hello,
> >
> > my HP 715/100 has an extra graphics card (HCRX-24?). Now I have read
> > that some 715s have an EISA-Slot instead of this graphics card. Can I
> > replace my graphics card with an EISA-Card. And if yes, can I also use
> > an ISA-card (e.g. an ISDN-Card)?
> >
> > T.i.a,
> >     Ruediger
> 
> Hi Rdiger,
> 
> As I understand it, EISA was provided on the 715s by an adapter card that
> sat in the GSC slot. Seems reasonable as both are controlled by WAX. So if
> you have a GSC card in the slot you presumably don't have the adapter.

Not entirely ...

There are two families of 715; 715/33, /50 and /75 (Scorpio) and 715/64,
/80, /100 and /100XC (Mirage or Turnip).

Scorpio is based on the PCX/T chip and Mirage on the PCX/L chip.  These
are quite different architectures.  For example, Mirage has Lasi and Wax
while Scorpio has discrete logic.  If you ever get the chance to compare
the two motherboards, you'll notice how many more components a Scorpio
has than a Mirage.

The EISA adapter (Mongoose) was originally designed for the Scorpio
family which predates GSC.  It has an SGC interface instead, and plugs
into the same slot as the graphics card.  Mirage boxes have both GSC
and SGC connectors, side-by-side on the motherboard.

There is an EISA adapter as a component of Wax, but I believe it's
disabled in Mirage boxes.  It's used in GSC-based C and J class boxes
though.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Thu, Apr 08, 2004 at 11:29:50AM -0500, James Bottomley wrote:
> On Thu, 2004-04-08 at 11:16, Andrea Arcangeli wrote:
> > softirq tasklets would be unsafe too, oh well, if you take it really
> > from irq context (irq/softirq/tasklet) then just a spinlock isn't
> > enough, it'd need to be an irq safe lock or whatever similar plus you
> > must be sure to never generate exceptions triggering the call inside the
> > critical section. sounds like we need some per-arch abstraction to cover
		      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> > this, we for sure don't want an irq spinlock for this, then we can as
> > well leave the semaphore for all archs but parisc.
> 
> Erm, well, I think this is a global problem.  All VI archs have to use
> the flush_ APIs in cachetlb.txt to ensure coherence.  It's just that
> sparc seems to have some nice cache manipulation instructions that
> relieve it of the necessity of traversing the mappings.
> 
> Why don't we want an irq safe spinlock?  As Hugh said, we'd abstract it
> so as to be a nop on PI archs.

I said above per-arch abstraction, a per-arch abstraction isn't an irq
safe spinlock, we cannot add an irq safe spinlock there, it'd be too bad
for all the common archs that don't need to walk those lists (actually
trees in my -aa tree) from irq context.

if you implement the locking abstraction with an irq safe spinlock it's
your own business then.


From - Thu Nov 08 21:31:39 2018
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On Thu, 2004-04-08 at 12:10, Andrea Arcangeli wrote:
> I said above per-arch abstraction, a per-arch abstraction isn't an irq
> safe spinlock, we cannot add an irq safe spinlock there, it'd be too bad
> for all the common archs that don't need to walk those lists (actually
> trees in my -aa tree) from irq context.

I think we agree on the abstraction thing.  I was more wondering what
you thought was so costly about an irq safe spinlock as opposed to an
ordinary one?  Is there something adding to this cost I don't know
about?  i.e. should we be thinking about something like RCU or phased
tree approach to walking the mapping lists?

James




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On Thu, Apr 08, 2004 at 12:43:45PM -0500, James Bottomley wrote:
> On Thu, 2004-04-08 at 12:10, Andrea Arcangeli wrote:
> > I said above per-arch abstraction, a per-arch abstraction isn't an irq
> > safe spinlock, we cannot add an irq safe spinlock there, it'd be too bad
> > for all the common archs that don't need to walk those lists (actually
> > trees in my -aa tree) from irq context.
> 
> I think we agree on the abstraction thing.  I was more wondering what
> you thought was so costly about an irq safe spinlock as opposed to an
> ordinary one?  Is there something adding to this cost I don't know
> about?  i.e. should we be thinking about something like RCU or phased
> tree approach to walking the mapping lists?

that path can take as long as timeslice to run, not taking interrupts
for a whole scheduler timeslice is pretty bad.

Note that the data structure will become a tree soon, but a prio-tree,
walking it with RCU lockless sounds very tricky to me, but it may be
doable. For the short term I doubt you want the RCU prio-tree, I guess
you want to stabilze the kernel first with the irq safe spinlock, then
you can try to hack on the prio-tree to read it in a lockless fascion.
If you can make the reading lockless we can giveup the abstraction too,
since we can make all archs walk with lockless, but warning, freeing
vmas in rcu callbacks means freeing mm in rcu callbacks, that then means
freeing pgd in rcu callbacks, the whole mm layer will collapse on you as
soon as you try to read that tree without any locking, only the inode
will be still there as far as you've a reference on the page (and as far
as you don't use nonlinear :-/ ).


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On Thu, 2004-04-08 at 12:51, Andrea Arcangeli wrote:
> that path can take as long as timeslice to run, not taking interrupts
> for a whole scheduler timeslice is pretty bad.

OK, now I'm confused.  Where's the whole timeslice bit coming from? the
parisc flush_dcache_code better not take a timeslice to execute
otherwise we're in very serious performance trouble.

Does it take as long as a timeslice to do mmap[_shared] list insertion?

James




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On Thu, Apr 08, 2004 at 01:07:31PM -0500, James Bottomley wrote:
> On Thu, 2004-04-08 at 12:51, Andrea Arcangeli wrote:
> > that path can take as long as timeslice to run, not taking interrupts
> > for a whole scheduler timeslice is pretty bad.
> 
> OK, now I'm confused.  Where's the whole timeslice bit coming from? the
> parisc flush_dcache_code better not take a timeslice to execute
> otherwise we're in very serious performance trouble.
> 
> Does it take as long as a timeslice to do mmap[_shared] list insertion?

it enterely depends on the workload. On a desktop machine there may be
only some hundred entries in those lists at maximum with glibc being the
biggest offender:

cat /proc/*/maps | grep libc.so.6 | wc -l

with shared memory on some server there can be easily several thousand
entries for some inode even on 64bit, but a timeslice was probably
exaggerated (the timeslice was for the walking of the ptes in each
mapping too, I don't think you need to look at every pte).


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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] rmap: parisc __flush_dcache_page
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Xref: news.gmane.org gmane.linux.ports.parisc:21340

On Thu, 2004-04-08 at 13:18, Andrea Arcangeli wrote:
> it enterely depends on the workload. On a desktop machine there may be
> only some hundred entries in those lists at maximum with glibc being the
> biggest offender:
> 
> cat /proc/*/maps | grep libc.so.6 | wc -l
> 
> with shared memory on some server there can be easily several thousand
> entries for some inode even on 64bit, but a timeslice was probably
> exaggerated (the timeslice was for the walking of the ptes in each
> mapping too, I don't think you need to look at every pte).

So you're worried about our code?  OK, if you look, you'll see we only
have to flush one address in the mmap_shared list, (which is usually the
long list).

I'd constructed it on the predicate that flushing a non-current space is
more expensive than finding a current one, but I can alter it to flush
the first vma it comes to with a present translation.

The mmap list is usually empty.  We only excite that case for multiple
private mappings of a file which for some reason gets updated.

I'd be very surprised if flush_dcache_page executes more than a few
hundred instructions all told...that's certainly nowhere close to a
timeslice.

James




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From: Andrea Arcangeli <andrea@suse.de>
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Subject: Re: [parisc-linux] rmap: parisc __flush_dcache_page
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On Thu, Apr 08, 2004 at 01:28:17PM -0500, James Bottomley wrote:
> So you're worried about our code?  OK, if you look, you'll see we only
> have to flush one address in the mmap_shared list, (which is usually the
> long list).

if you need to flush just one address, the prio-tree may give you an
huge boost, overall flush_dcache_page should become pretty quick in most
situations.

> I'd be very surprised if flush_dcache_page executes more than a few
> hundred instructions all told...that's certainly nowhere close to a
> timeslice.

What you miss is that the problem is not in flush_dcache_page, the
problem is that the _other_ users of the prio-tree may take as long as a
timeslice. So it's the _other_ user that you've no control about (i.e.
truncate) that may take timeslices with irq disabled.

But I've an fairly optimal solution for you, you should make it a
read_write spinlock, with the readers not disabling interrupts, and the
writer disabling interrupts, the writer of the prio-tree will not take a
timeslice, the readers instead will take a timeslice, but since they're
readers and you've only to read in the flush_dcache_page irq context,
you don't need to disable irqs for the readers.  I don't have better
solutions than this one at the moment (yeah there's the rcu reading of
the prio-tree but I'd leave it for later...)


From - Thu Nov 08 21:31:40 2018
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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] rmap: parisc __flush_dcache_page
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Cc: Hugh Dickins <hugh@veritas.com>,
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To: Andrea Arcangeli <andrea@suse.de>
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On Thu, 2004-04-08 at 13:42, Andrea Arcangeli wrote:
> What you miss is that the problem is not in flush_dcache_page, the
> problem is that the _other_ users of the prio-tree may take as long as a
> timeslice. So it's the _other_ user that you've no control about (i.e.
> truncate) that may take timeslices with irq disabled.

So the problem isn't in the parisc code, it's in the generic vm code,
OK.

> But I've an fairly optimal solution for you, you should make it a
> read_write spinlock, with the readers not disabling interrupts, and the
> writer disabling interrupts, the writer of the prio-tree will not take a
> timeslice, the readers instead will take a timeslice, but since they're
> readers and you've only to read in the flush_dcache_page irq context,
> you don't need to disable irqs for the readers.  I don't have better
> solutions than this one at the moment (yeah there's the rcu reading of
> the prio-tree but I'd leave it for later...)

Yes, I'll go for that.  The write need only be done on vma insert, which
should be very fast.  So do we agree this is a generic solution, or were
you still thinking of trying to abstract it per-arch?

James




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From: Andrea Arcangeli <andrea@suse.de>
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Subject: Re: [parisc-linux] rmap: parisc __flush_dcache_page
Date: Thu, 8 Apr 2004 21:02:35 +0200
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On Thu, Apr 08, 2004 at 01:49:55PM -0500, James Bottomley wrote:
> Yes, I'll go for that.  The write need only be done on vma insert, which
> should be very fast.  So do we agree this is a generic solution, or were
> you still thinking of trying to abstract it per-arch?

I'm unsure, the semaphore simplifies a lot the need_resched() in the
vmtruncate/zap_pte path, plus it avoids to waste time in the other cpus
while vmtruncate it working on it (potentially for more than a timeslice).

btw, I already considered making the semaphore a rw semaphore (note not
a rwspinlock) to boost scalability of the paging too, but OTOH the
paging has a so small critical section under the lock (objrmap) that I
wasn't sure if it would payoff, the biggest cost will still be the
bouncing of the cacheline, so I desisted from the idea of making it a
rwsem and I thought the semaphore was ideal as Andrew told me a few days
before I had the rwsem idea.  Plus concurrent truncate aren't worth
optimizing since they're serialized from the i_sem in the first place.

Ideally it should be a semaphore for all archs but the ones who needs
to walk it from irqs that wants a rw_spinlock.


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] EISA-Card in 715 /100
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On Thursday 08 April 2004 19:08, Matthew Wilcox wrote:
> There are two families of 715; 715/33, /50 and /75 (Scorpio) and 715/64,
> /80, /100 and /100XC (Mirage or Turnip).
> .....
> There is an EISA adapter as a component of Wax, but I believe it's 
> disabled in Mirage boxes.  It's used in GSC-based C and J class boxes
> though.

Just for the record:
My 715/64 is called "Mirage 64" and has a EISA slot.
Until now I only tested successfully an ISA NE2xxx compatible network card 
in it though...

Helge


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------=_NextPart_000_0016----=_NextPart_000_0016--




From - Thu Nov 08 21:31:40 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:21346

ScanMail for Microsoft Exchange has detected virus-infected attachment(s).

Sender = parisc-linux@lists.parisc-linux.org
Recipient(s) = Evangelos Kopanakis
Subject = Re: Encrypted Mail
Scanning time = 4/9/2004 1:04:01 AM
Engine/Pattern = 7.000-1004/1.853.00

Action on virus found:
The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed it. 

Warning to sender! 
A Virus was found in an Mail you send to us. 
Please check your System!


From - Thu Nov 08 21:31:40 2018
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X-Mozilla-Keys:                                                                                 
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From: Matt Taggart <taggart@carmen.fc.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [MailServer Notification]To Sender virus found 
	and action taken.
Date: Thu, 08 Apr 2004 18:23:46 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:21347


Administrator@s15113731.rootmaster.info writes...

> ScanMail for Microsoft Exchange has detected virus-infected attachment(s).
> 
> Sender = parisc-linux@lists.parisc-linux.org
> Recipient(s) = Evangelos Kopanakis
> Subject = Re: Encrypted Mail
> Scanning time = 4/9/2004 1:04:01 AM
> Engine/Pattern = 7.000-1004/1.853.00
> 
> Action on virus found:
> The attachment readme.zip contains WORM_NETSKY.P virus. ScanMail has Passed i

Messages to the list from this sender will now be discarded. We've had 16 
from that address in April and a bunch in March. I tried to contact the 
administrator and it bounced.

postmasters,

Please configure your spam/virus filters to _not_ reply to the sender. Most 
spam/viruses spoof the sender and it only makes the problem worse.

Thanks,

-- 
Matt Taggart
taggart@fc.hp.com




From - Thu Nov 08 21:31:41 2018
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X-Mozilla-Keys:                                                                                 
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Date: Thu,  8 Apr 2004 19:27:23 -0600 (MDT)
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Este mensaje contena virus o Spam.

From: parisc-linux@lists.parisc-linux.org
To: lmerino@abello.dic.uchile.cl

File(s): message.scr

Matching filename: *.scr




From - Thu Nov 08 21:31:41 2018
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X-Mozilla-Keys:                                                                                 
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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Proposal for altering our Page Table layouts
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Xref: news.gmane.org gmane.linux.ports.parisc:21349

Current state of Play
=====================

On PA, we currently have different page table layouts depending on
whether we're running a 64 bit (LP64) or 32 bit (ILP32) kernel.  PA
has a so called software TLB, which means that each PA processor
contains a number of fixed TLB entries and if the current virtual
address is not in one of them the processor takes a TLB miss fault and
the fault routine gets to locate the TLB entry and insert it (usually
causing the processor to throw out another TLB entry).  This software
TLB policy means that our page table structure is really up to us.

On ILP32 we have a 2 level page table, with a 4k directory pointing to
a page of 4k containing the entries, each entry pointing to a physical
page and taking 4 bytes (covering 1024*1024*4096 = 4GB total).

On LP64 we have a 3 level page table, with a 4k directory pointing to
a 4k mid-directory pointing to a page of 4k containing entries.  Since
our pointers here are 8 bytes, 4k only contains 512 of them, so we
cover 512 * 512 * 512 * 4096 = 512GB

One disadvantage on LP64 is that even though our user-space is mostly
ILP32, we still incur the overhead of a three level lookup.

Another problem with this is that each Page table Entry (PTE) needs to
contain certain flags (some are mandated by Linux, others are needed
to control the type of TLB entries we insert).  Since each PTE points
to a page (and thus must be page aligned), we get the lower 12 bits of
the address for the flags.  If you look in asm/pgtable.h, you'll see
that all of those bits are already in use for 13 flags (we overload
_PAGE_FILE and _PAGE_DIRTY).

In order to solve our cache flush penalty on fork/exec, and implement
stingy flushing, we need to be able to mark a page as being "in
cache", and would need an extra flag to do this with.  Additionally,
at some point in the future it would be nice to be able to be adaptive
about page size (i.e. r-x regions are just faulted binary text, we
could cover them with 16k or even 64k pages for efficiency and Linux
would be none the wiser).

To achieve all of this, we need quite a large expansion in the number
of available flags.

So:

New Proposal for Page Table Layout
==================================

The proposal is:

1) Make the PTE on both ILP32 and LP64 8 bytes.  Even on LP64, the
   maximum addressable physical memory is 48bits (256EB), so we can
   use the top 16 bits for additional flags.  On ILP32 we'd have an
   extra long, so again, we use the top 16 bits for flags and leave
   the lower 16 bits unused.  This gives us identical PTE layouts on
   both ILP32 and LP64

2) Make the directories 8k in size (this has to be physically
   contiguous because the TLB miss handler operates in absolute
   space).

3) Allocate all page tables in ZONE_DMA.  On PA, this means that the
   physical address of every page table will be under 4GB, so we only
   need *four* bytes for all of the directory entries. (The flags I'm
   looking for are only in the PTE, we have plenty of extra space
   still for directory flags).

Now, if you put all this together, you'll see that for ILP32
executables on the LP64 kernel, we only need a two level page table
(2048 directory entries * 512 PTEs * 4096 = 4GB), saving us one level
of indirect lookup.

Additionally, if we ever get around to implementing LP64 user binaries
(and you know who you are...) we would then be able to address up to
2048 * 2048 * 512 * 4096 = 8EB of virtual space using a three level
page table.

The disadvantages:

1) Our directory entries become order one allocations.  Linux is
   careful about this, so these type of allocations should be
   plentiful and we only need one directory per ILP32 process anyway.

2) we have to allocate GFP_DMA.  Since very few people actually have a
   PA machine with more than 4GB of ram, this shouldn't be too much of
   a problem.

The advantages:

1) We get an extra sixteen PTE flags to play with.

2) We use 2 level page tables for ILP32 user processes on LP64.

3) We can unify the narrow and wide TLB miss handlers (we'd actually
   predicate the 2 or 3 level lookup on the width of the user binary).

James




From - Thu Nov 08 21:31:41 2018
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Subject: [parisc-linux] Re: 0.9 release (HP 9000/800/K580 install problem)
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Thank you for your fast reply!

I installed the base system from the netinst ISO.  There seemed to be
no option to install from the network during this stage.  I'm wondering
if somehow /dev/ttyB0 was not created when the base system was installed
(even though it was there on the CD used for the install).  I think
maybe this device is not needed for all hardware, but is needed for my
particular setup, which would explain why it works for some others.

If this is the case, would you have any information as to how I can
boot from the netinst CD, open a shell and add /dev/ttyB0 to the
permanent installation?

Or perhaps I'm way off base here and you have some better
instructions.   :)

I'm more familiar with using Debian i386, so I have another small
(perhaps stupid) question about palinux:  is there a limit to partitions
on one disk?  The reason I asked is I tried to make four partitions on
one 9G drive (the first was type f0, the remaining three were linux).
The installer could only see the first two linux partitions and not
the third linux partition.  Thus, I revised my plan and only used two
linux partitions on that drive.

Thank you again,
Dave.

On Fri, Apr 09, 2004 at 01:40:50AM MDT, The PA/Linux ESIEE Team wrote:
> This looks very strange to me since 2.4.21-pa6 is known to be working
> just fine for any supported box.
> 
> I can see one pitfall though: have you installed base system from the
> netinst ISO or from network?
> 
> HTH,
> 
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://www.pateam.org/
> 
> On Thu, 08 Apr 2004 17:18:27 -0600
> "David Everly" <david.everly@mci.com> wrote:
> 
> > Hi,
> > 
> > I tried to install the following on HP 9000/800/K580:
> > 
> > http://www.pateam.org/cd-images/testing/palinux-2.4.21-pa6-20030718-netinst.iso
> > 
> > After installing kernel, configuring network, etc. it came time to
> > reboot.  Upon reboot I got the following message and could not finish
> > the install:
> > 
> > Starting periodic command scheduler: cron
> > /bin/sh: /dev/ttyB0: No such device
> > /bin/sh: /dev/ttyB0: No such device
> > /bin/sh: /dev/ttyB0: No such device
> > /bin/sh: /dev/ttyB0: No such device
> > /bin/sh: /dev/ttyB0: No such device
> > /bin/sh: /dev/ttyB0: No such device
> > /bin/sh: /dev/ttyB0: No such device
> > /bin/sh: /dev/ttyB0: No such device
> > /bin/sh: /dev/ttyB0: No such device
> > /bin/sh: /dev/ttyB0: No such device
> > INIT: Id "T0" respawning to fast: disabled for 5 minutes
> > INIT: no more processes left in this runlevel
> > 
> > Any suggestions on what I do now to either re-install or continue from
> > this point?
> > 
> > Thanks,
> > Dave.
- -- 
David.Everly@mci.com
      IM: deckrider@jabber.org
   GnuPG: E1B6 40B6 B73F 695E 0D3B  644E 6427 DD74 8527 B9AF

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Subject: Re: [parisc-linux] Proposal for altering our Page Table layouts
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> Allocate all page tables in ZONE_DMA.  On PA, this means that the
> physical address of every page table will be under 4GB, so we only
> need *four* bytes for all of the directory entries. (The flags I'm
> looking for are only in the PTE, we have plenty of extra space
> still for directory flags).

You don't need this restriction.  No PA machine actually implements more
than a 40 bit physical address space (even the latest Pluto based
machines, which support 44 bits for IA64 are put into a 40 bit addressing
mode for PARISC).  So, for a 4K page table size (12 bits), you only need
28 bits (40-12) to be able to address any possible 4K aligned physical
address.  This leaves you 4 bits for directory flags.  Since we only
currently use 1, you still have 3 to spare.

Note that you won't even need to incur an extra instruction in the
tlb miss handler to do the shift, because the deposit to clear the valid
bit can be converted to a zdep to both clear the bit(s) and shift. I
think you have to use a different target register in that case though.

John


From - Thu Nov 08 21:31:41 2018
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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: 0.9 release (HP 9000/800/K580 install problem)
Date: Fri, 9 Apr 2004 18:49:21 +0200
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I have just checked on a system installed using that particular netinst,
ttyB0 is well created:

varenet@Tigrou:~$ ls -l /dev/ttyB0 
crw-rw----    1 root     dialout   60,   0 Jun  7  2002 /dev/ttyB0

You're the second person to report that problem on the mailing list (check
the archive) and I just can't figure out what's wrong with your setup.

I don't have any box requiring the use of ttyB0 handy to make some tests
here, but the ttyB0 stuff has been in the netinsts for quite a while now
and has been reported to work fine.

Anyway, check that mail, it seems that's there's a solution with newer
kernels, with a new major number for /dev/ttyB0:
http://lists.parisc-linux.org/pipermail/parisc-linux/2004-April/022830.html

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/


On Fri, 09 Apr 2004 05:31:00 -0600
david.everly@mci.com wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Thank you for your fast reply!
> 
> I installed the base system from the netinst ISO.  There seemed to be
> no option to install from the network during this stage.  I'm wondering
> if somehow /dev/ttyB0 was not created when the base system was installed
> (even though it was there on the CD used for the install).  I think
> maybe this device is not needed for all hardware, but is needed for my
> particular setup, which would explain why it works for some others.
> 
> If this is the case, would you have any information as to how I can
> boot from the netinst CD, open a shell and add /dev/ttyB0 to the
> permanent installation?
> 
> Or perhaps I'm way off base here and you have some better
> instructions.   :)
> 
> I'm more familiar with using Debian i386, so I have another small
> (perhaps stupid) question about palinux:  is there a limit to partitions
> on one disk?  The reason I asked is I tried to make four partitions on
> one 9G drive (the first was type f0, the remaining three were linux).
> The installer could only see the first two linux partitions and not
> the third linux partition.  Thus, I revised my plan and only used two
> linux partitions on that drive.
> 
> Thank you again,
> Dave.
> 
> On Fri, Apr 09, 2004 at 01:40:50AM MDT, The PA/Linux ESIEE Team wrote:
> > This looks very strange to me since 2.4.21-pa6 is known to be working
> > just fine for any supported box.
> > 
> > I can see one pitfall though: have you installed base system from the
> > netinst ISO or from network?
> > 
> > HTH,
> > 
> > Thibaut VARENE
> > The PA/Linux ESIEE Team
> > http://www.pateam.org/
> > 
> > On Thu, 08 Apr 2004 17:18:27 -0600
> > "David Everly" <david.everly@mci.com> wrote:
> > 
> > > Hi,
> > > 
> > > I tried to install the following on HP 9000/800/K580:
> > > 
> > > http://www.pateam.org/cd-images/testing/palinux-2.4.21-pa6-20030718-netinst.iso
> > > 
> > > After installing kernel, configuring network, etc. it came time to
> > > reboot.  Upon reboot I got the following message and could not
> > > finish the install:
> > > 
> > > Starting periodic command scheduler: cron
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > INIT: Id "T0" respawning to fast: disabled for 5 minutes
> > > INIT: no more processes left in this runlevel
> > > 
> > > Any suggestions on what I do now to either re-install or continue
> > > from this point?
> > > 
> > > Thanks,
> > > Dave.
> - -- 
> David.Everly@mci.com
>       IM: deckrider@jabber.org
>    GnuPG: E1B6 40B6 B73F 695E 0D3B  644E 6427 DD74 8527 B9AF
> 
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> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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Subject: Re: [parisc-linux] Re: 0.9 release (HP 9000/800/K580 install problem)
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Some more information that invalidates some thing I said below:

/dev/ttyB0 was in fact already installed (/target/dev/ttyB0 when
booting from the CD to check), even though the inittab line
seems to fail when booting and trying to run base-config

Any ideas of what I might change?

On Fri, Apr 09, 2004 at 05:31:00AM MDT, david.everly@mci.com wrote:
> Thank you for your fast reply!
> 
> I installed the base system from the netinst ISO.  There seemed to be
> no option to install from the network during this stage.  I'm wondering
> if somehow /dev/ttyB0 was not created when the base system was installed
> (even though it was there on the CD used for the install).  I think
> maybe this device is not needed for all hardware, but is needed for my
> particular setup, which would explain why it works for some others.
> 
> If this is the case, would you have any information as to how I can
> boot from the netinst CD, open a shell and add /dev/ttyB0 to the
> permanent installation?
> 
> Or perhaps I'm way off base here and you have some better
> instructions.   :)
> 
> I'm more familiar with using Debian i386, so I have another small
> (perhaps stupid) question about palinux:  is there a limit to partitions
> on one disk?  The reason I asked is I tried to make four partitions on
> one 9G drive (the first was type f0, the remaining three were linux).
> The installer could only see the first two linux partitions and not
> the third linux partition.  Thus, I revised my plan and only used two
> linux partitions on that drive.
> 
> Thank you again,
> Dave.
> 
> On Fri, Apr 09, 2004 at 01:40:50AM MDT, The PA/Linux ESIEE Team wrote:
> > This looks very strange to me since 2.4.21-pa6 is known to be working
> > just fine for any supported box.
> > 
> > I can see one pitfall though: have you installed base system from the
> > netinst ISO or from network?
> > 
> > HTH,
> > 
> > Thibaut VARENE
> > The PA/Linux ESIEE Team
> > http://www.pateam.org/
> > 
> > On Thu, 08 Apr 2004 17:18:27 -0600
> > "David Everly" <david.everly@mci.com> wrote:
> > 
> > > Hi,
> > > 
> > > I tried to install the following on HP 9000/800/K580:
> > > 
> > > http://www.pateam.org/cd-images/testing/palinux-2.4.21-pa6-20030718-netinst.iso
> > > 
> > > After installing kernel, configuring network, etc. it came time to
> > > reboot.  Upon reboot I got the following message and could not finish
> > > the install:
> > > 
> > > Starting periodic command scheduler: cron
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > /bin/sh: /dev/ttyB0: No such device
> > > INIT: Id "T0" respawning to fast: disabled for 5 minutes
> > > INIT: no more processes left in this runlevel
> > > 
> > > Any suggestions on what I do now to either re-install or continue from
> > > this point?
> > > 
> > > Thanks,
> > > Dave.
> -- 
> David.Everly@mci.com
>       IM: deckrider@jabber.org
>    GnuPG: E1B6 40B6 B73F 695E 0D3B  644E 6427 DD74 8527 B9AF
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

- -- 
David.Everly@mci.com
   V-Net:       622-3286
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http://agilemanifesto.org/principles.html
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Subject: Re: [parisc-linux] Re: 0.9 release (HP 9000/800/K580 install problem)
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Ah yes! I've been searching the archives for something like that, but
apparently not the right search terms.  I will try this and report back.

Thanks.

On Fri, Apr 09, 2004 at 10:49:21AM MDT, Thibaut VARENE wrote:
> I have just checked on a system installed using that particular netinst,
> ttyB0 is well created:
> 
> varenet@Tigrou:~$ ls -l /dev/ttyB0 
> crw-rw----    1 root     dialout   60,   0 Jun  7  2002 /dev/ttyB0
> 
> You're the second person to report that problem on the mailing list (check
> the archive) and I just can't figure out what's wrong with your setup.
> 
> I don't have any box requiring the use of ttyB0 handy to make some tests
> here, but the ttyB0 stuff has been in the netinsts for quite a while now
> and has been reported to work fine.
> 
> Anyway, check that mail, it seems that's there's a solution with newer
> kernels, with a new major number for /dev/ttyB0:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2004-April/022830.html
> 
> HTH,
> 
> 
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://www.pateam.org/

- -- 
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Subject: Re: [parisc-linux] Re: 0.9 release (HP 9000/800/K580 install problem)
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> Ah yes! I've been searching the archives for something like that, but
> apparently not the right search terms.  I will try this and report back.

I think the major number for the device file needs to be changed.
Search for "mknod".

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Proposal for altering our Page Table layouts
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Hi James,

James Bottomley wrote:
> Current state of Play
> =====================
> 
> On PA, we currently have different page table layouts depending on
> whether we're running a 64 bit (LP64) or 32 bit (ILP32) kernel.  PA
> has a so called software TLB, which means that each PA processor
> contains a number of fixed TLB entries and if the current virtual
> address is not in one of them the processor takes a TLB miss fault and
> the fault routine gets to locate the TLB entry and insert it (usually
> causing the processor to throw out another TLB entry).  This software
> TLB policy means that our page table structure is really up to us.
> 
> On ILP32 we have a 2 level page table, with a 4k directory pointing to
> a page of 4k containing the entries, each entry pointing to a physical
> page and taking 4 bytes (covering 1024*1024*4096 = 4GB total).
> 
> On LP64 we have a 3 level page table, with a 4k directory pointing to
> a 4k mid-directory pointing to a page of 4k containing entries.  Since
> our pointers here are 8 bytes, 4k only contains 512 of them, so we
> cover 512 * 512 * 512 * 4096 = 512GB
> 
> One disadvantage on LP64 is that even though our user-space is mostly
> ILP32, we still incur the overhead of a three level lookup.
> 
> Another problem with this is that each Page table Entry (PTE) needs to
> contain certain flags (some are mandated by Linux, others are needed
> to control the type of TLB entries we insert).  Since each PTE points
> to a page (and thus must be page aligned), we get the lower 12 bits of
> the address for the flags.  If you look in asm/pgtable.h, you'll see
> that all of those bits are already in use for 13 flags (we overload
> _PAGE_FILE and _PAGE_DIRTY).
> 
> In order to solve our cache flush penalty on fork/exec, and implement
> stingy flushing, we need to be able to mark a page as being "in
> cache", and would need an extra flag to do this with.  Additionally,
> at some point in the future it would be nice to be able to be adaptive
> about page size (i.e. r-x regions are just faulted binary text, we
> could cover them with 16k or even 64k pages for efficiency and Linux
> would be none the wiser).
> 
> To achieve all of this, we need quite a large expansion in the number
> of available flags.
> 
> So:
> 
> New Proposal for Page Table Layout
> ==================================
> 
> The proposal is:
> 
> 1) Make the PTE on both ILP32 and LP64 8 bytes.  Even on LP64, the
>    maximum addressable physical memory is 48bits (256EB), so we can
>    use the top 16 bits for additional flags.  On ILP32 we'd have an
>    extra long, so again, we use the top 16 bits for flags and leave
>    the lower 16 bits unused.  This gives us identical PTE layouts on
>    both ILP32 and LP64
> 
> 2) Make the directories 8k in size (this has to be physically
>    contiguous because the TLB miss handler operates in absolute
>    space).
> 
> 3) Allocate all page tables in ZONE_DMA.  On PA, this means that the
>    physical address of every page table will be under 4GB, so we only
>    need *four* bytes for all of the directory entries. (The flags I'm
>    looking for are only in the PTE, we have plenty of extra space
>    still for directory flags).
> 
I would just take the opportunity to mentioned you a pb I encounter on N4k model
(typicaly requiring 64bit kernel) with 2 cpu and 4Gb of ram. I can just run a up kernel (2.6.5-pa5 :) )
which only uses only 2 of the 4 Gb of the available ram.
Thanks to Matthew (http://lists.parisc-linux.org/pipermail/parisc-linux/2004-February/022393.html)
and Grant (http://lists.parisc-linux.org/pipermail/parisc-linux/2004-February/022408.html),
I can figure out the following stuff:
 > <==== actualy return by setup_bootmem() ====>
 > pmem_ranges[0].start_pfn = 0.
 > pmem_ranges[0].pages = 524288.
 > pmem_ranges[1].start_pfn = 1572864.
 >
There is so an actual gap too big for setup_bootmem():
(in arch/parisc/kernel/init.c)
[snip]
#define MAX_GAP (0x40000000UL >> PAGE_SHIFT)

static void __init setup_bootmem(void)
{
[snip]
#ifdef __LP64__

#ifndef CONFIG_DISCONTIGMEM
[snip]
         for (i = 1; i < npmem_ranges; i++) {
                 if (pmem_ranges[i].start_pfn -
                         (pmem_ranges[i-1].start_pfn +
                          pmem_ranges[i-1].pages) > MAX_GAP) {
                         npmem_ranges = i;
                         break;
                 }
         }
#endif
[snip]

I try to have a look to implement 'CONFIG_DISCONTIGMEM' but I am not a developer and have not enough kernel knowledge to do it.

Just in the hope it could help you,
	Joel
> Now, if you put all this together, you'll see that for ILP32
> executables on the LP64 kernel, we only need a two level page table
> (2048 directory entries * 512 PTEs * 4096 = 4GB), saving us one level
> of indirect lookup.
> 
> Additionally, if we ever get around to implementing LP64 user binaries
> (and you know who you are...) we would then be able to address up to
> 2048 * 2048 * 512 * 4096 = 8EB of virtual space using a three level
> page table.
> 
> The disadvantages:
> 
> 1) Our directory entries become order one allocations.  Linux is
>    careful about this, so these type of allocations should be
>    plentiful and we only need one directory per ILP32 process anyway.
> 
> 2) we have to allocate GFP_DMA.  Since very few people actually have a
>    PA machine with more than 4GB of ram, this shouldn't be too much of
>    a problem.
> 
> The advantages:
> 
> 1) We get an extra sixteen PTE flags to play with.
> 
> 2) We use 2 level page tables for ILP32 user processes on LP64.
> 
> 3) We can unify the narrow and wide TLB miss handlers (we'd actually
>    predicate the 2 or 3 level lookup on the width of the user binary).
> 
> James
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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To: James Bottomley <James.Bottomley@steeleye.com>
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Hi James,

I come back to you with your ccio-dma patch because I don't undertand this part:
[snip]
#ifdef CONFIG_PROC_FS
/*
  * CCIO_SEARCH_TIME can help measure how fast the bitmap search is.
  * impacts performance though - ditch it if you don't use it.
  */
#define CCIO_SEARCH_TIME
#undef CCIO_MAP_STATS
#else
#undef CCIO_SEARCH_TIME
#undef CCIO_MAP_STATS
#endif

CCIO_MAP_STATS is always undef?

Could it be the panic reason of my c110 (_apparently_ since this patch)?

Thanks in advance for your attention,
	Joel


Grant Grundler wrote:
> On Sun, Mar 21, 2004 at 12:57:16PM -0700, Grant Grundler wrote:
> 
>>>Kernel Fault: Code=26 regs=10594380 (Addr=00000000)
>>
>>null ptr deref.
>>
>>...
>>
>>> IAOQ[0]: lasi700_probe+0x18c/0x1cc
>>> IAOQ[1]: lasi700_probe+0x190/0x1cc
>>> RP(r2): lasi700_probe+0x58/0x1cc
>>
>>IOAQ[0] is the offending instruction.
> 
> 
> James Bottomley observed a problem with hppa_dma_ops
> not being set properly for his U2/Uturn box.
> This is likely the same problem.
> See ccio driver isn't claiming the chip when it should.
> 
> grant
> 


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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Fri, Apr 09, 2004 at 11:13:16AM MDT,  wrote:
> Ah yes! I've been searching the archives for something like that, but
> apparently not the right search terms.  I will try this and report back.

It worked.  Install is complete (Debian/Sarge) and everything is
great.  Thank you very much for your help!

> On Fri, Apr 09, 2004 at 10:49:21AM MDT, Thibaut VARENE wrote:
> > Anyway, check that mail, it seems that's there's a solution with newer
> > kernels, with a new major number for /dev/ttyB0:
> > http://lists.parisc-linux.org/pipermail/parisc-linux/2004-April/022830.html

- -- 
David.Everly@mci.com
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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On Fri, Apr 09, 2004 at 08:47:27PM +0000, Joel Soete wrote:
> /*
>  * CCIO_SEARCH_TIME can help measure how fast the bitmap search is.
>  * impacts performance though - ditch it if you don't use it.
>  */
> #define CCIO_SEARCH_TIME
> #undef CCIO_MAP_STATS
> #else
> #undef CCIO_SEARCH_TIME
> #undef CCIO_MAP_STATS
> #endif
> 
> CCIO_MAP_STATS is always undef?

yes - it interfers with DMA mapping performance.

> Could it be the panic reason of my c110 (_apparently_ since this patch)?

Not likely.
The above disables code that is (should!) not affect basic functionality.
CCIO_MAP_STATS just collects data for /proc/bus/runway/... output.

grant


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On Thu, Apr 08, 2004 at 08:42:45PM +0200, Andrea Arcangeli wrote:
> But I've an fairly optimal solution for you, you should make it a
> read_write spinlock, with the readers not disabling interrupts, and the
> writer disabling interrupts, the writer of the prio-tree will not take a
> timeslice, the readers instead will take a timeslice, but since they're
> readers and you've only to read in the flush_dcache_page irq context,
> you don't need to disable irqs for the readers.  I don't have better
> solutions than this one at the moment (yeah there's the rcu reading of
> the prio-tree but I'd leave it for later...)

FWIW, agreed.  Past attempts at RCU-based tree algorithms have been
a bit on the complex side.  While I believe that simpler versions are
possible, RCU-based trees should be approached with caution and with
long lead times.

						Thanx, Paul


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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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Grant,

Thanks.

I will so just reversed mentioned patches, check if it is the real cause of my pb.
If yes (I don't see what else) re-apply patch hunk by hunk until it breaks again?

Any better idea?

Joel


Grant Grundler wrote:
> On Fri, Apr 09, 2004 at 08:47:27PM +0000, Joel Soete wrote:
> 
>>/*
>> * CCIO_SEARCH_TIME can help measure how fast the bitmap search is.
>> * impacts performance though - ditch it if you don't use it.
>> */
>>#define CCIO_SEARCH_TIME
>>#undef CCIO_MAP_STATS
>>#else
>>#undef CCIO_SEARCH_TIME
>>#undef CCIO_MAP_STATS
>>#endif
>>
>>CCIO_MAP_STATS is always undef?
> 
> 
> yes - it interfers with DMA mapping performance.
> 
> 
>>Could it be the panic reason of my c110 (_apparently_ since this patch)?
> 
> 
> Not likely.
> The above disables code that is (should!) not affect basic functionality.
> CCIO_MAP_STATS just collects data for /proc/bus/runway/... output.
> 
> grant
> 


From - Thu Nov 08 21:31:42 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
Date: Sat, 10 Apr 2004 12:14:39 -0600
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To: Joel Soete <soete.joel@tiscali.be>
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On Sat, Apr 10, 2004 at 08:32:04AM +0000, Joel Soete wrote:
> I will so just reversed mentioned patches, check if it is the real
> cause of my pb.

ok

> If yes (I don't see what else) re-apply patch hunk by hunk until it breaks 
> again?

That won't work with the changes to ccio driver. It's all or nothing.

> Any better idea?

I don't understand why C360 (James' machine) works and C110 (your machine)
does not.  C110 doesn't have PCI and maybe different keyboard/LAN.
Find out what is different between the two machines and see if ccio
changes broke one of the drivers for the different HW.

You might need to add pdc_io_reset_devices() to ccio_ioc_init()
since we moved that out of the common code path. I don't see that
in CCIO driver and it's not clear to me if HIL or LAN need it on C110.

It *might* need pdc_io_reset() call instead (or in addition)
but I don't know.  Just another thing to be aware of.

grant


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Proposal for altering our Page Table layouts
Date: Sat, 10 Apr 2004 14:49:46 -0400
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To: James Bottomley <James.Bottomley@steeleye.com>
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> New Proposal for Page Table Layout
> ==================================
> 
> The proposal is:
> 
> 1) Make the PTE on both ILP32 and LP64 8 bytes.  Even on LP64, the
>    maximum addressable physical memory is 48bits (256EB), so we can
>    use the top 16 bits for additional flags.  On ILP32 we'd have an
>    extra long, so again, we use the top 16 bits for flags and leave
>    the lower 16 bits unused.  This gives us identical PTE layouts on
>    both ILP32 and LP64
> 
> 2) Make the directories 8k in size (this has to be physically
>    contiguous because the TLB miss handler operates in absolute
>    space).
> 
> 3) Allocate all page tables in ZONE_DMA.  On PA, this means that the
>    physical address of every page table will be under 4GB, so we only
>    need *four* bytes for all of the directory entries. (The flags I'm
>    looking for are only in the PTE, we have plenty of extra space
>    still for directory flags).

Has anyone considered inverted page table layouts?
 
> Now, if you put all this together, you'll see that for ILP32
> executables on the LP64 kernel, we only need a two level page table
> (2048 directory entries * 512 PTEs * 4096 = 4GB), saving us one level
> of indirect lookup.
> 
> Additionally, if we ever get around to implementing LP64 user binaries
> (and you know who you are...) we would then be able to address up to
> 2048 * 2048 * 512 * 4096 = 8EB of virtual space using a three level
> page table.

I've already started porting glibc, I'm convincing autoconf to traverse
the right system dependency directories. Hasn't been too painful yet,
I'm still writing the 64-bit dl-machine to handle the relocations
though. I have it building an ld64.so.1 but it doesn't work yet :)
 
> The disadvantages:
> 
> 1) Our directory entries become order one allocations.  Linux is
>    careful about this, so these type of allocations should be
>    plentiful and we only need one directory per ILP32 process anyway.
> 
> 2) we have to allocate GFP_DMA.  Since very few people actually have a
>    PA machine with more than 4GB of ram, this shouldn't be too much of
>    a problem.
> 
> The advantages:
> 
> 1) We get an extra sixteen PTE flags to play with.
> 
> 2) We use 2 level page tables for ILP32 user processes on LP64.

If we used an inverted page table with hashing it would be a single
level page table, with good cache locality (less spread compared to a
hierarchical table).

> 3) We can unify the narrow and wide TLB miss handlers (we'd actually
>    predicate the 2 or 3 level lookup on the width of the user binary).


Cheers,
Carlos.



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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Proposal for altering our Page Table layouts
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On Sat, 2004-04-10 at 14:49, Carlos O'Donell wrote:
> If we used an inverted page table with hashing it would be a single
> level page table, with good cache locality (less spread compared to a
> hierarchical table).

To be honest, I don't see the value of hashed page tables.  A two level
structure is about as optimal as you can get.  Particularly as the pgdir
will be cache hot (from the tlb refill misses).

In a hashed page table layout, you just have to have a page collision 
and you've already lost to the two level page table (because of the
cache hotness of pgdir).

In particular, on PA because of our congruence requirements for shared
mappings, it would be difficult to find an efficient hashing mechanism
that didn't generate deep collision chains (and remember, we're all
ILP32 at the moment, so just one collision and we lose to the 2 level).

James




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On Sat, 2004-04-10 at 14:49, Carlos O'Donell wrote:
> I've already started porting glibc, I'm convincing autoconf to traverse
> the right system dependency directories. Hasn't been too painful yet,
> I'm still writing the 64-bit dl-machine to handle the relocations
> though. I have it building an ld64.so.1 but it doesn't work yet :)

I didn't name names ;-)

But thanks for the effort.

James




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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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Grant Grundler wrote:
> On Sat, Apr 10, 2004 at 08:32:04AM +0000, Joel Soete wrote:
> 
>>I will so just reversed mentioned patches, check if it is the real
>>cause of my pb.
> 
> 
> ok
> 

Well I reach to reverted it and the result is a booting and operational kernel.
oops, my bad: I also reverted my config. Very stupid of my part, I just have re-do test; sorry

> 
>>If yes (I don't see what else) re-apply patch hunk by hunk until it breaks 
>>again?
> 
> 
> That won't work with the changes to ccio driver. It's all or nothing.
> 
(I see, any way there was 2 steps for this patch and I don't have the opportunity to test the first step alone?)
> 
>>Any better idea?
> 
> 
> I don't understand why C360 (James' machine) works and C110 (your machine)
> does not.  C110 doesn't have PCI and maybe different keyboard/LAN.
> Find out what is different between the two machines and see if ccio
> changes broke one of the drivers for the different HW.
> 
C110's Devices						      |	C360's Devices

Raven 120 T' (Processor)  (PA7200 (PCX-T'))		      |	Raven W 360 (9000/780/????) (Processor)  (PA8500 (PCX-W))
SkyHawk 100/120 (Memory)				      |	Raven W 360 Memory (Memory)
SkyHawk 100/120 FW-SCSI (A DMA) (Zalon driver)		      |	Raven U/L2 Dino RS-232 (Foreign I/O Module) (Serial driver)
Raven T' Core Centronics (Foreign I/O Module) (Parallel drive |	Raven+ w Core Centronics (Foreign I/O Module) (Paral
Raven T' Audio (Foreign I/O Module) (Harmony driver)	      |	Raven+ w Core Audio (Foreign I/O Module) (Harmony d
Raven T' Lasi Core RS-232 (Foreign I/O Module) (Serial driver |	Raven+ w Core RS-232 (Foreign I/O Module) (Serial d
Raven T' Core SCSI (Foreign I/O Module) (NCR53c710 driver)    |	Raven+ w Core SCSI (Foreign I/O Module) (NCR53c710
Raven T' Core LAN (802.3) (Foreign I/O Module) (Lasi_82596 dr |	Raven+ w Core PC Keyboard (Foreign I/O Module) (PS/
Raven T' Core PC Keyboard (Foreign I/O Module) (PS/2 driver)  |	Raven+ w Core BA (Bus Adapter) (Lasi driver)
Raven T' Core PC Floppy (Foreign I/O Module)		      <
Raven T' Wax HIL (Foreign I/O Module) (HIL driver)	      <
Raven T' Wax RS-232 (Foreign I/O Module) (Serial driver)      <
Raven T' GSC Core Graphics (Foreign I/O Module)		      <
Raven T' Core BA (Bus Adapter) (Lasi driver)		      <
Raven T' Wax BA (Bus Adapter) (Wax driver)		      <
Raven T' Wax EISA BA (Bus Adapter)			      <
U2-IOA BC Runway Port (IOA) (x2)				U2-IOA BC Runway Port (IOA) (x2)
							      >	Dino PCI Bridge (Bus Bridge to Foreign Bus) (Dino driver)
							      >	Cujo PCI Bridge (Bus Bridge to Foreign Bus) (Dino driver)
							      >
							      >	53c875 (Symbios Logic Inc. (formerly NCR)) (SYM8xx driver)
							      >	DECchip 21142/43 (Digital Equipment Corporation) (Tulip drive
							      >	Visualize FX4 (Hewlett-Packard Company)

This is diff -y of devices list grab from web h/w db (may be c360 list could be confirmed by James with a dmesg file?)
It help me to point out 2 big diff: scsi Zalon driver and Lasi_82596 Lan nic (I removed HIL modules simply because no device 
available).

That said the system always became to hang when I start a large disk i/o with a find into a linux kernel for example and also by 
accident I also start a kernel without Lasi module (and iirc the same pb occured) but in any case I could make it leave without 
Zalon driver; or did I miss something else in my .config (so much diff between the 2 config I used).

(C110 need long hours to compile the kernel :( but that is all I have at home)

> You might need to add pdc_io_reset_devices() to ccio_ioc_init()
> since we moved that out of the common code path.

hmm I don't see such stuff in patches I grab of jejb changes?
Any way I see what you did in sba_hw_init() (I will so be able to reproduce it ;) )

> I don't see that
> in CCIO driver and it's not clear to me if HIL or LAN need it on C110.
> 
> It *might* need pdc_io_reset() call instead (or in addition)
> but I don't know.  Just another thing to be aware of.
> 
Thanks for all kind advise (it will just take me much more test and so many time before I could figure out the actual pb)

Joel


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> To be honest, I don't see the value of hashed page tables.  A two level
> structure is about as optimal as you can get.  Particularly as the pgdir
> will be cache hot (from the tlb refill misses).
>
> In a hashed page table layout, you just have to have a page collision 
> and you've already lost to the two level page table (because of the
> cache hotness of pgdir).

While pgdir might be hot in cache, but the rest of the structures will
sprawl to fill the entire cache.

In contrast a hashed page table layout would be extremely dense, and fit
better in the cache. If you were to have a collision the likelyhood
that what you want is in the cache can actually be higher.

> In particular, on PA because of our congruence requirements for shared
> mappings, it would be difficult to find an efficient hashing mechanism
> that didn't generate deep collision chains (and remember, we're all
> ILP32 at the moment, so just one collision and we lose to the 2 level).

Huck & Hayes says "high va bits XOR low va bits."

http://www.baldric.uwo.ca/~carlos/Architectural-support-for-translation-table-management-in-large-address-space-machines.pdf

I've been doing some literature searches on the issue, mainly IEEE and
ACM over the last 10-20 years. Most of the research was done in the mid
90's and interestingly enough a lot of it has to do with PA's.

Read the paper at the above link and tell me what you think of the
16-byte PTE presented, and how the allocations happen on a single entry
by entry basis. Another author suggests that the HAT and the PDIR could
be merged (you'll have to read the paper to find out what I mean). I'm
not sure what to do about the aliasing restrictions...

c.



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On Sat, 2004-04-10 at 17:46, Carlos O'Donell wrote:
> While pgdir might be hot in cache, but the rest of the structures will
> sprawl to fill the entire cache.
> 
> In contrast a hashed page table layout would be extremely dense, and fit
> better in the cache. If you were to have a collision the likelyhood
> that what you want is in the cache can actually be higher.

Well, I challenge you to show me such a dense layout.

The reality in Linux is that the kernel is offset mapped (physical
addresses and virtual addresses differ by PAGE_OFFSET).  This means that
any hash head comes directly out of kernel allocated memory.  Further,
since our tlb miss handlers must operate in physical space, it has to be
physically contiguous.  Given glibc's somewhat prodigious appetite, our
average mapped pages per system process is about a thousand (obviously
not all hot).  That makes the hash size (given that you have to have 16
byte entries) about 16k.  Now look at graphics programs; just pulling in
X gnome/kde and we'll jump to 10,000 or 160k.  The latter is just not
possible (the maximum contiguous allocation is 128k, and we can't do one
of those per process and still live to tell the tale).

By contrast, a multi-level page table can be sparsely allocated and has
no physical contiguity requirements.  I'm willing to be proven wrong,
but I just can't see how we can allocate a cache large enough to avoid
common collisions given the Linux physical allocation constraints.  And
if we don't allocate it contiguously, it's performance is going to be
far worse than a two level lookup.

James


> > In particular, on PA because of our congruence requirements for shared
> > mappings, it would be difficult to find an efficient hashing mechanism
> > that didn't generate deep collision chains (and remember, we're all
> > ILP32 at the moment, so just one collision and we lose to the 2 level).
> 
> Huck & Hayes says "high va bits XOR low va bits."
> 
> http://www.baldric.uwo.ca/~carlos/Architectural-support-for-translation-table-management-in-large-address-space-machines.pdf
> 
> I've been doing some literature searches on the issue, mainly IEEE and
> ACM over the last 10-20 years. Most of the research was done in the mid
> 90's and interestingly enough a lot of it has to do with PA's.
> 
> Read the paper at the above link and tell me what you think of the
> 16-byte PTE presented, and how the allocations happen on a single entry
> by entry basis. Another author suggests that the HAT and the PDIR could
> be merged (you'll have to read the paper to find out what I mean). I'm
> not sure what to do about the aliasing restrictions...
> 
> c.




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Hi,
While SW patents seems slightly off topic because it's not directly
technical, I've been asked to put up a banner on www.parisc-linux.org
to protest the European Union SW patent directive.
Some examples of such banners are here:

	http://demo.ffii.org/online.php
	http://www.kde.org/
	http://bh.udev.org/

A bit more info is on
   http://yro.slashdot.org/yro/04/04/10/1627239.shtml?tid=117&tid=155&tid=99

Personnally, I have a hard time with SW patents though I understand
the general intent of patents. But given my affialation with HP,
HP's generous sponsorship of parisc-linux (web site hosting, servers,
HW donations), and HPs recent activities with IP (Intellectual Property),
I'm not the right person to implement such a banner without some
input from HP business or legal groups.

With a bit more private discussion (please send me opinions *privately*
if you have to), it's possible someone from the European Union with
CVS write access could add such a banner. parisc-linux.org should also
represent the volunteers that currently support the parisc-linux port,
not just HP.

thanks,
grant


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Subject: Re: [parisc-linux] European Union and Software-Patents
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Hi Grant,
Hi List,

On Sunday 11 April 2004 08:18, Grant Grundler wrote:
> Hi,
> While SW patents seems slightly off topic because it's not directly
> technical, I've been asked to put up a banner on www.parisc-linux.org
> to protest the European Union SW patent directive.

Thanks for bringing this topic up on this list.

> Some examples of such banners are here:
> 
> 	http://demo.ffii.org/online.php
> 	http://www.kde.org/
> 	http://bh.udev.org/
> 
> A bit more info is on
>    http://yro.slashdot.org/yro/04/04/10/1627239.shtml?tid=117&tid=155&tid=99
> 
> Personnally, I have a hard time with SW patents though I understand
> the general intent of patents. But given my affialation with HP,
> HP's generous sponsorship of parisc-linux (web site hosting, servers,
> HW donations), and HPs recent activities with IP (Intellectual Property),
> I'm not the right person to implement such a banner without some
> input from HP business or legal groups.

Fully understandable.
Just to make sure - the demo is not against software patents in general,
it against unlimited patentability and thus against "simple patents", generic 
software things like e.g. progress bars, tabs in GUIs and so on. 
Just have look at demo webshop at the ffii.org website to see what kind of 
patents it's really about: http://webshop.ffii.org/
 
> With a bit more private discussion (please send me opinions *privately*
> if you have to), it's possible someone from the European Union with
> CVS write access could add such a banner. parisc-linux.org should also
> represent the volunteers that currently support the parisc-linux port,
> not just HP.

I'm willing to put up a box on the website as you can see on http://www.kde.org/
if people here on the list agree to this. Since the decisions in brussels will happen
on april 15th, I need to know your opinions on this really soon.

Helge Deller
Germany


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On Fri, 2004-04-09 at 09:38, John Marvin wrote:
> You don't need this restriction.  No PA machine actually implements more
> than a 40 bit physical address space (even the latest Pluto based
> machines, which support 44 bits for IA64 are put into a 40 bit addressing
> mode for PARISC).  So, for a 4K page table size (12 bits), you only need
> 28 bits (40-12) to be able to address any possible 4K aligned physical
> address.  This leaves you 4 bits for directory flags.  Since we only
> currently use 1, you still have 3 to spare.
> 
> Note that you won't even need to incur an extra instruction in the
> tlb miss handler to do the shift, because the deposit to clear the valid
> bit can be converted to a zdep to both clear the bit(s) and shift. I
> think you have to use a different target register in that case though.

Well, never say never in computing.  However, I'll use this scheme. 
Then all we need is a way to ensure that page tables are allocated in
the first 1TB.  If the worst comes to the worst, we could always
introduce ZONE_HIGHMEM to ensure this were always true.

James




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From - Thu Nov 08 21:31:42 2018
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From: "M. Grabert" <xam@cs.ucc.ie>
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Subject: [parisc-linux] Voodoo 2
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Hi,

I'm about to purchase a Voodoo2 PCI graphics card since I saw some
reports on the p-l list that it is working on Linux/PA-RISC.


I want to ask a couple of questions before I'm going to buy the graphics card:

- Helge prepared a patch to make the Voodoo working, and was incorporated
  into the 2.4.19-pa18 kernel. It seems that it's still in 2.4.25-pa1.
  But is the patch integrated into the mainstream 2.4?
  I just took a brief look, and it appears so, is this correct?


- What about 2.6? I don't think that it's been forwarded to 2.6 yet?


- there is also the XFree86 Voodoo 1/2 driver from Alan Cox
(http://lists.parisc-linux.org/pipermail/parisc-linux/2004-February/022382.html)

  I suppose this driver also doesn't require the Voodoo2 card to be initialized,
  and I think the advanage over using sstfb would be that it supports DGA
  and some 2D acceleration.

  Has anybody tested it (I couldn't even compile it)?


Thanks alot,
  Max


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On Fri, Apr 09, 2004 at 08:38:04AM -0600, John Marvin wrote:
...
> No PA machine actually implements more
> than a 40 bit physical address space (even the latest Pluto based
> machines, which support 44 bits for IA64 are put into a 40 bit addressing
> mode for PARISC).

I was just looking at the pluto "PA_RISC Physical Address Map" and
all RAM is physically located < 1TB (40 bits).
Do we have to worry about the GMMIO (MMIO space above 4GB) in
"F-space" above 1TB?

The per rope 64KB IO Port space is accessed via the GMMIO address ranges.
This is in addition to the "global" IO Port space accessed through the
regular < 4GB MMIO address space. I'm guessing this won't ever need
to be mapped to userspace (or something like that), but just would
like to hear from someone who understands it better whats up.

That's for ZX1+PA8800. I've not looked SX1000 (Superdome).

thanks,
grant


From - Thu Nov 08 21:31:43 2018
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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: [parisc-linux] Re: if something is not done,
	hppa will not have an installer for sarge
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Xref: news.gmane.org gmane.linux.ports.parisc:21377

Including parisc-linux@parisc-linux.org as that is where the hppa
developers tend to hang out.

I just had a quick try with 

http://gluck.debian.org/cdimage/testing/daily/hppa/20040411/sarge-hppa-businesscard.iso

I burnt an ISO, and it wouldn't boot on my B180.  It stopped after
'choosing a 32 bit kernel', which I assume indicates some palo
issue.  I believe the ISO was burnt ok, because I later loaded
the udebs from it.

Next I copied the 32 bit kernel and initrd.gz from the ISO and
generated a lifimage, using:

/sbin/palo -k vmlinux-2.4.25-32 -r initrd.gz -c 'ramdisk_size=8192 root=/dev/ram initrd=0/ramdisk devfs=mount,dall' -s di.lifimage -f /dev/null

That netbooted and the kernel started ok, but gave continual segfaults
in frontend, as we saw before.

Next I loopback mounted the initrd and copied the libm-2.3.2.so from
my (not very uptodate) sid system to the initrd overwriting the
libm.so.6 on there (which had been reduced to about 1200 bytes).
A workaround for the glibc issue is to avoid reducing libm to the
point where it has no symbols at all.

I gzipped the initrd again and reran palo.  The new lifimage booted
ok, used framebuffer, and looks fine.  I didn't try modifying any
disk partitions but it found the existing ones ok, including the
palo boot partition which was correctly recognised.

It may be relevant that my palo is 1.3, while the ISO was using
palo 1.4.

It may be relevant that the ISO had a rather long kernel commandline,
relative to the 127 char limit that palo claims.  I'm never sure
whether that 127 char limit is before or after palo adds all the
console and sti related parameters though.

As the ISO I burnt was still in the drive, d-i found that and loaded the
udebs from it.  I then went on to select a remote mirror for loading
the debs.

The install completed successfully, although it installed a 2.4.20
kernel (I guess that is the most recent in testing).

baseconfig worked, although I saw a message in the apt setup stage
briefly that looked like some shell complaint about '['.

Perhaps we should 'fix' mklibs on the system that builds the images to
not reduce libm completely.  Then we need to figure out what the palo
issue is.

This is what i currently have in my mklibs (which I guess worked
round the issue when I last worked on hppa d-i):

    # to be the only one and including it on alpha as well
    # doesn't hurt. I guess all archs can live with this.
    needed_symbols.add(("sys_siglist", 1))
    # This is a hack to stop libm being reduced to nothing
+   # RGH.
+   needed_symbols.add(("log", 1))

    # calculate what symbols are present in small_libs
    present_symbols = Set()

I was surprised to see seperate kernel images, initrd, and iplboot
files on the ISO.  I'd say most people netbooted their hppa boxes,
and we should include a complete lifimage rather than the individual
components.  It may be that this initrd wouldn't have worked if it
had needed to pull udebs from the net though.

Many thanks to the hppa developers that got us a 2.4.25 kernel for
d-i, and to Jeff for the daily images.

Richard


On Sun, Apr 11, 2004 at 01:46:29PM -0400, Joey Hess wrote:
> Kyle McMartin wrote:
> > [Instead of directly CC'ing you Joey, I'm cross-posting to debian-boot]
> > 
> > On Sun, Apr 11, 2004 at 12:54:59PM -0400, Joey Hess wrote:
> > > I just want to make sure that you hppa folk realise that hppa is further
> > > from having a working installer for sarge than any architecture aside
> > > from perhaps s390. AFAIK only one person is working on it at all (and
> > > he's currently away, and his time is split amoung other ports anyway).
> > > The d-i port really needs more than one person working on it, if it's
> > > going to ship with beta 4 of d-i. That's in two weeks.
> > > 
> > > Note that hppa basically worked in mid-January, but it's not been kept
> > > up.
> > > 
> > 
> > The problem with hppa now, seems to be the same as what Richard Hirst
> > reported in January. The initrd issues seem to have been taken care of,
> > and now it's simply a segmentation fault causing problems.
> > 
> > VFS: Mounted root (ext2 filesystem) readonly.                                   
> > Mounted devfs on /dev                                                           
> > Freeing unused kernel memory: 252k freed                                        
> > Setting up filesystem, please wait ...                                          
> > umount: /initrd: Invalid argument                                               
> > Segmentation fault                                                              
> > Segmentation fault
> > [...]
> > 
> > Is what I get when booting the latest netboot build on my 715/100XC.
> 
> There is a patch in the bts for this problem, #228375. I assme that a
> fixed libc6 will be uploaded eventually, but in the meantime I'd hope
> the workaround also in there, which Richard Hirst used, is enough to let
> things be tested and let everything else be gotten working. Basically,
> don't let this issue block you from working on the hppa port!
> 
> -- 
> see shy jo




From - Thu Nov 08 21:31:43 2018
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On Mon, 2004-04-12 at 06:12, Richard Hirst wrote:
> It may be relevant that the ISO had a rather long kernel commandline,
> relative to the 127 char limit that palo claims.  I'm never sure
> whether that 127 char limit is before or after palo adds all the
> console and sti related parameters though.

That limit is absolute and may not be overrun.  The co-ordinates of the
64 bit kernel lie immediately after the 128 char buffer.  Usually the
system is unbootable if you overrun this limit.

Unfortunately, palo is rather poor about checking this limit when
installing the image or modifying the command line...

James




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On Sun, 2004-04-11 at 23:32, Grant Grundler wrote:
> I was just looking at the pluto "PA_RISC Physical Address Map" and
> all RAM is physically located < 1TB (40 bits).
> Do we have to worry about the GMMIO (MMIO space above 4GB) in
> "F-space" above 1TB?

No, the problem is merely where the page tables go.  They have to be
addressed physically in the page table directories, so if we only allow
for 40 bits of physical addressing, the page tables have to be located
within the first 40 bits of memory.  This doesn't limit the machine
memory size, merely the location of the page tables.

James




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Subject: Re: [parisc-linux] Re: if something is not done,
	hppa will not have an installer for sarge
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On Mon, Apr 12, 2004 at 09:19:27AM -0500, James Bottomley wrote:
> On Mon, 2004-04-12 at 06:12, Richard Hirst wrote:
> > It may be relevant that the ISO had a rather long kernel commandline,
> > relative to the 127 char limit that palo claims.  I'm never sure
> > whether that 127 char limit is before or after palo adds all the
> > console and sti related parameters though.
> 
> That limit is absolute and may not be overrun.  The co-ordinates of the
> 64 bit kernel lie immediately after the 128 char buffer.  Usually the
> system is unbootable if you overrun this limit.

Unbootable, or unbootable on 64 bit h/w?

> Unfortunately, palo is rather poor about checking this limit when
> installing the image or modifying the command line...

and last time I tried building palo on a sid system to investigate
these hangs on boot, the result didn't work at all :(

Richard



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Subject: Re: [parisc-linux] Re: if something is not done, hppa will not have
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On Mon, 2004-04-12 at 10:05, Richard Hirst wrote:
> Unbootable, or unbootable on 64 bit h/w?

It seems to be unbootable entirely, but for 32 bit kernels that's random
(sometimes it will, sometimes it won't).

> > Unfortunately, palo is rather poor about checking this limit when
> > installing the image or modifying the command line...
> 
> and last time I tried building palo on a sid system to investigate
> these hangs on boot, the result didn't work at all :(

I think just reducing the command line would be the best option.  Why's
it so long?

James




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"M. Grabert" <xam@cs.ucc.ie> writes:

> I'm about to purchase a Voodoo2 PCI graphics card since I saw some
> reports on the p-l list that it is working on Linux/PA-RISC.

hmm... if they are useful to people. anybody (us sf bay area local)
wants one of these (or a singleboard v2 sli) they can have them (you
can't have my cool fib-ed board #2, since it probably won't work anymore
:-)

anyway, i'm not sure what you meant by 'initialization', but the init
code can be done at anytime and doesn't need to have any special
boot-time interpreter stuff (unlike

\p
---
A person with a new idea is a crank until the idea succeeds.
		--- Mark Twain


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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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On Mon, 2004-04-12 at 10:48, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/04/12 09:48:00
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: cache.c 
> 
> Log message:
> According to recent discussion on the parisc list, it's far more
> expensive to walk the i_mmap_shared list to find our current mm than
> it is simply to change the space registers to flush the first mm we
> find.  This change updates __flush_dcache_page() accordingly.

Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/cache.c,v
retrieving revision 1.8
diff -u -r1.8 cache.c
--- a/arch/parisc/kernel/cache.c	7 Apr 2004 00:49:01 -0000	1.8
+++ b/arch/parisc/kernel/cache.c	12 Apr 2004 15:44:55 -0000
@@ -229,9 +229,7 @@
 
 void __flush_dcache_page(struct page *page)
 {
-	struct mm_struct *mm = current->active_mm;
 	struct list_head *l;
-	struct vm_area_struct *anyvma = NULL;
 
 	flush_kernel_dcache_page(page_address(page));
 
@@ -265,31 +263,10 @@
 		if (!translation_exists(mpnt, addr))
 			continue;
 
-		anyvma = mpnt;
-
-		/*
-		 * We try first to find a page in our current user process
-		 */
-		if (mpnt->vm_mm != mm)
-			continue;
-
-
 		__flush_cache_page(mpnt, addr);
 
-		/* All user shared mappings should be equivalently mapped,
-		 * so once we've flushed one we should be ok
-		 */
-		goto flush_unshared;
+		break;
 	}
-
-	/* OK, shared page but not in our current process' address space */
-	if (anyvma) {
-		unsigned long addr = anyvma->vm_start
-			+ ((page->index - anyvma->vm_pgoff) << PAGE_SHIFT);
-		__flush_cache_page(anyvma, addr);
-	}

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Subject: Re: [parisc-linux] Re: if something is not done,
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> On Mon, 2004-04-12 at 10:05, Richard Hirst wrote:
>> Unbootable, or unbootable on 64 bit h/w?
>
> It seems to be unbootable entirely, but for 32 bit kernels that's random
> (sometimes it will, sometimes it won't).
>
>> > Unfortunately, palo is rather poor about checking this limit when
>> > installing the image or modifying the command line...
>>
>> and last time I tried building palo on a sid system to investigate
>> these hangs on boot, the result didn't work at all :(
>
> I think just reducing the command line would be the best option.  Why's
> it so long?
>
> James

Well, palo adds a whole bunch of stuff to the command line automatically.
If, for example, your /boot directory is on the root partition and you're
testing a kernel called vmlinux-2.6.5-rc1-pa5, then you get at least:

kernel=0/boot/vmlinux-2.6.5-rc1-pa5
root=/dev/sda1
console=tty0
sti=8/24
palo_kernel=0/boot/vmlinux-2.6.5-rc1-pa5

In fact I think there is more (the B132L is offline right now and
the C180 is boostrapping Gentoo so I can't check). Then you only
need to add another parameter, like the very reasonable:

stifb=bpp:32

and you're screwed. Been there, done that!

-Andy




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Subject: Re: [parisc-linux] Re: if something is not done,
	hppa will not have an installer for sarge
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On Mon, Apr 12, 2004 at 10:15:46AM -0500, James Bottomley wrote:
> On Mon, 2004-04-12 at 10:05, Richard Hirst wrote:
> > Unbootable, or unbootable on 64 bit h/w?
> 
> It seems to be unbootable entirely, but for 32 bit kernels that's random
> (sometimes it will, sometimes it won't).
> 
> > > Unfortunately, palo is rather poor about checking this limit when
> > > installing the image or modifying the command line...
> > 
> > and last time I tried building palo on a sid system to investigate
> > these hangs on boot, the result didn't work at all :(
> 
> I think just reducing the command line would be the best option.  Why's
> it so long?

This is the cmdline when booting from the aforementioned ISO:

Command line for kernel: 'ramdisk_size=8192 root=/dev/ram      devfs=mount,dall 
init=/linuxrc DEBCONF_PRIORITY=high console=tty0 sti=8/24 sti_font=VGA8x16 TERM=
linux palo_kernel=0/vmlinux'

Looks like 162 chars to me.

You can deduce how much of that comes from the d-i build process and how
much is manufactured by palo on boot from the start of the ISO:

0000000: 8000 5041 4c4f 0003 00c8 e000 003d fddd  ..PALO.......=..
0000010: 0053 5000 001b e9de 302f 766d 6c69 6e75  .SP.....0/vmlinu
0000020: 7820 7261 6d64 6973 6b5f 7369 7a65 3d38  x ramdisk_size=8
0000030: 3139 3220 726f 6f74 3d2f 6465 762f 7261  192 root=/dev/ra
0000040: 6d20 2020 2020 2069 6e69 7472 643d 302f  m      initrd=0/
0000050: 7261 6d64 6973 6b20 6465 7666 733d 6d6f  ramdisk devfs=mo
0000060: 756e 742c 6461 6c6c 2069 6e69 743d 2f6c  unt,dall init=/l
0000070: 696e 7578 7263 2044 4542 434f 4e46 5f50  inuxrc DEBCONF_P
0000080: 5249 4f52 4954 593d 6869 6768 0000 0000  RIORITY=high....

I don't know what default ramdisk size we build the kernel for, but
it needs to be over 6MB (initrd is 6449152 bytes this time).

Note palo has added at least
"console=tty0 sti=8/24 sti_font=VGA8x16 TERM=linux palo_kernel=0/vmlinux"

which looks like 71 of our 127 chars - hence my comment about
whether or not the 127 char limit is supposed to include the
bits added by palo.

If we just take the part that is passed to palo when the ISO is
mastered, I guess that is

"ramdisk_size=8192 root=/dev/ram      initrd=0/ramdisk devfs=mount,dall init=/linuxrc DEBCONF_PRIORITY=high"

which is well under 127.

Richard



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Subject: Re: [parisc-linux] Re: if something is not done,
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Richard Hirst wrote:
[snip]
> > I think just reducing the command line would be the best option.  Why's
> > it so long?
> 
> This is the cmdline when booting from the aforementioned ISO:
> 
> Command line for kernel: 'ramdisk_size=8192 root=/dev/ram      devfs=mount,dall 
> init=/linuxrc DEBCONF_PRIORITY=high console=tty0 sti=8/24 sti_font=VGA8x16 TERM=
> linux palo_kernel=0/vmlinux'

> Note palo has added at least
> "console=tty0 sti=8/24 sti_font=VGA8x16 TERM=linux palo_kernel=0/vmlinux"
> 
> which looks like 71 of our 127 chars - hence my comment about
> whether or not the 127 char limit is supposed to include the
> bits added by palo.
> 
> If we just take the part that is passed to palo when the ISO is
> mastered, I guess that is
> 
> "ramdisk_size=8192 root=/dev/ram      initrd=0/ramdisk devfs=mount,dall init=/linuxrc DEBCONF_PRIORITY=high"

I doubt all of these are needed. At least root= and devfs= aren't
in use any more on other d-i arches, same for linuxrc.

The TERM=linux mentioned above looks a bit weird to me, shouldn't
it be default anyway?


Thiemo


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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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Subject: Re: [parisc-linux] Voodoo 2
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On Llu, 2004-04-12 at 00:12, M. Grabert wrote:
>   I suppose this driver also doesn't require the Voodoo2 card to be initialized,
>   and I think the advanage over using sstfb would be that it supports DGA
>   and some 2D acceleration.

Mostly the 2D acceleration is useful

>   Has anybody tested it (I couldn't even compile it)?

You need to drop it into a full XFree 4.3/X.org 6.7 tree to build
which makes it umm fun. When you get to that point I can give you
instructions and we can debug it 8)



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Subject: Re: [parisc-linux] Voodoo 2
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On Monday 12 April 2004 01:12, M. Grabert wrote:
> I'm about to purchase a Voodoo2 PCI graphics card since I saw some
> reports on the p-l list that it is working on Linux/PA-RISC.
> 
> I want to ask a couple of questions before I'm going to buy the graphics card:
> 
> - Helge prepared a patch to make the Voodoo working, and was incorporated
>   into the 2.4.19-pa18 kernel. It seems that it's still in 2.4.25-pa1.
>   But is the patch integrated into the mainstream 2.4?
>   I just took a brief look, and it appears so, is this correct?

No idea yet. I will check.

> - What about 2.6? I don't think that it's been forwarded to 2.6 yet?

It's in 2.6. I just tested my Vodoo2 in my c3k and it works.
Linux version 2.6.5-pa6 (root@p100) (gcc version 3.0.2 20010829 (prerelease)) #29 Mon Apr 12 22:46:03 CEST 2004
The 32-bit Kernel has started...
..
sstfb: Voodoo2 (revision 2) with ICS ICS5342 dac
sstfb: framebuffer at 0xfb400000, mapped to 0xfb400000, size 2MB
fb0: Voodoo2 frame buffer device at 0xfb400000
..

I can run the driver, graphics & Tux penguin comes up.
Running "fbset -a 1024x768-75" even gives me a nice big screen (although
I still don't like this "stty cols 64 rows 48" stuff yet...)

> - there is also the XFree86 Voodoo 1/2 driver from Alan Cox
> (http://lists.parisc-linux.org/pipermail/parisc-linux/2004-February/022382.html)
> 
>   I suppose this driver also doesn't require the Voodoo2 card to be initialized,
>   and I think the advanage over using sstfb would be that it supports DGA
>   and some 2D acceleration.

At least it should (if it works :-))

>   Has anybody tested it (I couldn't even compile it)?

Neither me (I was lacking the XFree86 sources).

Helge


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> In contrast a hashed page table layout would be extremely dense, and fit
> better in the cache. If you were to have a collision the likelyhood
> that what you want is in the cache can actually be higher.
>
> ...
>
> I've been doing some literature searches on the issue, mainly IEEE and
> ACM over the last 10-20 years. Most of the research was done in the mid
> 90's and interestingly enough a lot of it has to do with PA's.
>
> Read the paper at the above link and tell me what you think of the
> 16-byte PTE presented, and how the allocations happen on a single entry
> by entry basis. Another author suggests that the HAT and the PDIR could
> be merged (you'll have to read the paper to find out what I mean). I'm
> not sure what to do about the aliasing restrictions...

Let's not forget that the machine independent VM code assumes a 2 or 3
level page table, walks those page tables, allocates page tables, etc.
So, let's forget about theory for a minute, and start talking
realistically.  Have you considered how you would abstract an inverted
page table design so that it would fit within the machine independent VM
design for page table support?  I haven't given it more than about 5
minutes of thought, but I don't see a way of doing it (Note that I am
not for this idea at all).

If you can't do it (i.e. hide it completely within the parisc arch code) then
you need to be talking to Linus and convince him first, unless you are
advocating maintaining a large patch against machine independent code.

John Marvin
jsm@fc.hp.com


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On Mon, 2004-04-12 at 18:31, John Marvin wrote:
> Let's not forget that the machine independent VM code assumes a 2 or 3
> level page table, walks those page tables, allocates page tables, etc.
> So, let's forget about theory for a minute, and start talking
> realistically.  Have you considered how you would abstract an inverted
> page table design so that it would fit within the machine independent VM
> design for page table support?  I haven't given it more than about 5
> minutes of thought, but I don't see a way of doing it (Note that I am
> not for this idea at all).

I think we can all agree that the results presented in the paper show
(albeit indirectly) that IPT performs worse than a 2 level page table
(FMPT in the paper).

However, as far as linux goes, the abstraction would actually cover a 1
level page table as well ... and we could make a HPT directly emulate a
1-level table as long as we did the hash chain walking within the
pgd_offset macro.

> If you can't do it (i.e. hide it completely within the parisc arch code) then
> you need to be talking to Linus and convince him first, unless you are
> advocating maintaining a large patch against machine independent code.

However, realistically, I think a global HPT is incompatible with the
way linux does VM and a local HPT (one per process) while possible, gets
us into awful memory allocation problems to the extent that it's not
worth bothering with.  Therefore, I think a 2 level table will be
optimal for us.

James




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On Monday 12 April 2004 05:09 pm, Helge Deller wrote:
> On Monday 12 April 2004 01:12, M. Grabert wrote:
> > - What about 2.6? I don't think that it's been forwarded to 2.6 yet?
>
> It's in 2.6. I just tested my Vodoo2 in my c3k and it works.
> Linux version 2.6.5-pa6 (root@p100) (gcc version 3.0.2 20010829
> (prerelease)) #29 Mon Apr 12 22:46:03 CEST 2004 The 32-bit Kernel has
> started...
> ..
> sstfb: Voodoo2 (revision 2) with ICS ICS5342 dac
> sstfb: framebuffer at 0xfb400000, mapped to 0xfb400000, size 2MB
> fb0: Voodoo2 frame buffer device at 0xfb400000
> ..

this interests me since i'd love to get something better than the 8bit vid 
card running in my C360 :)

i threw my obsidian voodoo2 into my box, but it did what it always has for 
me ... i build the sstfb as a module and when i modprobe it, the box locks 
up ... i builld it as a module because otherwise it'll lock at boot and i 
have to do a little manual rescue foo :)
-mike


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On Tuesday 13 April 2004 06:21, Mike Frysinger wrote:
> On Monday 12 April 2004 05:09 pm, Helge Deller wrote:
> > On Monday 12 April 2004 01:12, M. Grabert wrote:
> > > - What about 2.6? I don't think that it's been forwarded to 2.6 yet?
> >
> > It's in 2.6. I just tested my Vodoo2 in my c3k and it works.
> > Linux version 2.6.5-pa6 (root@p100) (gcc version 3.0.2 20010829
> > (prerelease)) #29 Mon Apr 12 22:46:03 CEST 2004 The 32-bit Kernel has
> > started...
> > ..
> > sstfb: Voodoo2 (revision 2) with ICS ICS5342 dac
> > sstfb: framebuffer at 0xfb400000, mapped to 0xfb400000, size 2MB
> > fb0: Voodoo2 frame buffer device at 0xfb400000
> > ..
> 
> this interests me since i'd love to get something better than the 8bit vid 
> card running in my C360 :)
> 
> i threw my obsidian voodoo2 into my box, but it did what it always has for 
> me ... i build the sstfb as a module and when i modprobe it, the box locks 
> up ... i builld it as a module because otherwise it'll lock at boot and i 
> have to do a little manual rescue foo :)

My above test was with the sstfb driver built-in into the kernel and with all
other graphics drivers (incl. stifb and STI text console) disabled.

FYI, this is what my graphics-relevant part of .config looked like:
#
# Graphics support
#
CONFIG_FB=y
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_STI is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON_OLD is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
CONFIG_FB_VOODOO1=y
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_VIRTUAL is not set

#
# Console display driver support
#
# CONFIG_MDA_CONSOLE is not set
# CONFIG_STI_CONSOLE is not set
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_PCI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y

#
# Logo configuration
#
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_LOGO_PARISC_CLUT224=y


Then, in a second test I enabled STIFB, and choosed SSTFB as module.
Booting up worked:
Linux version 2.6.5-pa6 (root@p100) (gcc version 3.0.2 20010829 (prerelease)) #30 Tue Apr 13 09:49:08 CEST 2004
....
STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f2400000 (64 kB), fb at f8000000 (32 MB)
    id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
    graphics card name: PCI_GRAFFITIX1024
STI PCI graphic ROM found at f3800000 (2048 kB), fb at f6000000 (32 MB)
    id 35acda30-9a02587, conforms to spec rev. 8.0d
    graphics card name: A1262A
fb0: stifb 1024x768-8 frame buffer device, PCI_GRAFFITIX1024, id: 2d08c0a7, mmio: 0xf8100000
stifb: 'A1262A' (id: 0x35acda30) not supported.
.... (the second card 'A1262A' is a Visualize FX4 - it doesn't work!)

c3000:~# modprobe sstfb
sstfb: Voodoo2 (revision 2) with ICS ICS5342 dac
sstfb: framebuffer at 0xfb400000, mapped to 0xfb400000, size 2MB
fb1: Voodoo2 frame buffer device at 0xfb400000

c3000:~# cat /proc/fb 
0 stifb
1 Voodoo2

Works too...

Helge


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Yes, Linux assumes a lot about the general layout of the pte tables.

> I think we can all agree that the results presented in the paper show
> (albeit indirectly) that IPT performs worse than a 2 level page table
> (FMPT in the paper).

Correct.
 
> However, as far as linux goes, the abstraction would actually cover a 1
> level page table as well ... and we could make a HPT directly emulate a
> 1-level table as long as we did the hash chain walking within the
> pgd_offset macro.

Yes.

> > If you can't do it (i.e. hide it completely within the parisc arch code) then
> > you need to be talking to Linus and convince him first, unless you are
> > advocating maintaining a large patch against machine independent code.
> 
> However, realistically, I think a global HPT is incompatible with the
> way linux does VM and a local HPT (one per process) while possible, gets
> us into awful memory allocation problems to the extent that it's not
> worth bothering with.  Therefore, I think a 2 level table will be
> optimal for us.

Yes, two-level / three-level systems are lower order allocations. The
difficult issue with HPT's is that we have no clear mechanism for
aliases, and shared mappings, possibly requiring more initial pgdir's or
some such hackery.

James, I meant only to hash out other possible alternatives, merely
being the pot stirrer or devils advocate :)

I think your idea is exactly what we need to cleanup that chunk of code,
possibly finding mistakes along the way. When you need help just holler.

c.



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From: Jesse Dougherty <jesse@cypress-tech.com>
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Subject: [parisc-linux] C7497A DDS-4 Tape Drive
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Does anyone happen to know where one could buy a C7497A DDS-4 tape drive
for the HP tape array 5300. I have tried HP (new & re-marketed), other
HP resellers such as my self, Ebay, Google searches, and a few other on
line wholesalers / inventory posting sites with no luck. These things
seem to be a tough cookie to locate. If anyone knows of a company or
individual that I can obtain one from, please let me know. I cant use
any substitutions, its got to be the C7497A

Thanks for your help
Jesse
Cypress Technology Inc
jesse@cypress-tech.com



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Hello Joel,

I finally had some time to compile a kernel and boot some systems today
so I tested the latest CVS head on my C200 and a J200 to see if I could
duplicate the problem you are seeing.

The J200 is basically a dual processor C100 so it should be very close
to the C110 (i.e. no PCI, EISA based, etc)  The device names are
different so I am not sure if it is close enough but I still think it is
a relevant data point.


Device list for the J200:

1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0x7, 0x580, 0x0000b }
2. SkyHawk 100/120 FW-SCSI at 0xf3f80000 [8/0] { 4, 0x0, 0x01f, 0x00089
}
3. SkyHawk 100/120 Core BA at 0xffd00000 [8/12] { 11, 0x0, 0x01f,
0x00081 },  additional addresses: 0xffd0c000 0xffc00000
4. SkyHawk 100/120 Core Centronics at 0xffd02000 [8/12/0] { 10, 0x0,
0x01f, 0x00074 },  additional addresses: 0xffd01000 0xffd03000
5. SkyHawk 100/120 Audio at 0xffd04000 [8/12/1] { 10, 0x0, 0x01f,
0x0007b }
6. SkyHawk 100/120 Core RS-232 at 0xffd05000 [8/12/4] { 10, 0x0, 0x01f,
0x0008c }
7. SkyHawk 100/120 Core SCSI at 0xffd06000 [8/12/5] { 10, 0x0, 0x01f,
0x00082 }
8. SkyHawk 100/120 Core LAN (802.3) at 0xffd07000 [8/12/6] { 10, 0x0,
0x01f, 0x0008a }
9. SkyHawk 100/120 Core PS/2 Port at 0xffd08000 [8/12/7] { 10, 0x0,
0x01f, 0x00084 }
10. SkyHawk 100/120 Core PS/2 Port at 0xffd08100 [8/12/8] { 10, 0x0,
0x01f, 0x00084 }
11. U2-IOA BC GSC+ Port at 0xf3fbf000 [8/63] { 7, 0x1, 0x501, 0x0000c }
12. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0x7, 0x580, 0x0000b }
13. HP HSC-PCI Cards at 0xf3fc0000 [10/0] { 4, 0x0, 0x004, 0x0009d }
14. Hyperdrive Optional Graphics at 0xf6000000 [10/16] { 10, 0x0, 0x005,
0x00077 }
15. SkyHawk Wax BA at 0xffe00000 [10/20] { 11, 0x0, 0x01f, 0x0008e }, 
additional addresses: 0xffe03000 0xffe06000
16. SkyHawk 100/120 Wax HIL at 0xffe01000 [10/20/1] { 10, 0x0, 0x01f,
0x00073 }
17. SkyHawk 100/120 Wax RS-232 at 0xffe02000 [10/20/2] { 10, 0x0, 0x004,
0x0008c }
18. SkyHawk 100/120 Wax EISA BA at 0xfc000000 [10/20/5] { 11, 0x0,
0x01f, 0x00090 },  additional addresses: 0xf0182000 0xf4000000
19. U2-IOA BC GSC+ Port at 0xf3fff000 [10/63] { 7, 0x1, 0x501, 0x0000c
},  additional addresses: 0xf3fc0000
20. SkyHawk 100 at 0xfffa0000 [32] { 0, 0x0, 0x585, 0x00004 }
21. Memory at 0xfffb1000 [49] { 1, 0x0, 0x049, 0x00009 }
CPU(s): 1 x PA7200 (PCX-T') at 100.000000 MHz


Would you be interested in trying the lifimage I complied and
successfully booted on both the J200 and the C110?  If the lifimage
boots on your system then we localize the problem down to possible tool
chain or .config problem (I used the defconfig).


Linux moby 2.6.5-pa6 #2 Tue Apr 13 12:01:32 MDT 2004 parisc GNU/Linux

cpu MHz         : 100.000000
model           : 9000/770/J200

Thoughts?

Thanks,

- Ryan

On Sat, 2004-04-10 at 15:19, Joel Soete wrote:
> Grant Grundler wrote:
> > On Sat, Apr 10, 2004 at 08:32:04AM +0000, Joel Soete wrote:
> > 
> >>I will so just reversed mentioned patches, check if it is the real
> >>cause of my pb.
> > 
> > 
> > ok
> > 
> 
> Well I reach to reverted it and the result is a booting and operational kernel.
> oops, my bad: I also reverted my config. Very stupid of my part, I just have re-do test; sorry
> 
> > 
> >>If yes (I don't see what else) re-apply patch hunk by hunk until it breaks 
> >>again?
> > 
> > 
> > That won't work with the changes to ccio driver. It's all or nothing.
> > 
> (I see, any way there was 2 steps for this patch and I don't have the opportunity to test the first step alone?)
> > 
> >>Any better idea?
> > 
> > 
> > I don't understand why C360 (James' machine) works and C110 (your machine)
> > does not.  C110 doesn't have PCI and maybe different keyboard/LAN.
> > Find out what is different between the two machines and see if ccio
> > changes broke one of the drivers for the different HW.
> > 
> C110's Devices						      |	C360's Devices
> 
> Raven 120 T' (Processor)  (PA7200 (PCX-T'))		      |	Raven W 360 (9000/780/????) (Processor)  (PA8500 (PCX-W))
> SkyHawk 100/120 (Memory)				      |	Raven W 360 Memory (Memory)
> SkyHawk 100/120 FW-SCSI (A DMA) (Zalon driver)		      |	Raven U/L2 Dino RS-232 (Foreign I/O Module) (Serial driver)
> Raven T' Core Centronics (Foreign I/O Module) (Parallel drive |	Raven+ w Core Centronics (Foreign I/O Module) (Paral
> Raven T' Audio (Foreign I/O Module) (Harmony driver)	      |	Raven+ w Core Audio (Foreign I/O Module) (Harmony d
> Raven T' Lasi Core RS-232 (Foreign I/O Module) (Serial driver |	Raven+ w Core RS-232 (Foreign I/O Module) (Serial d
> Raven T' Core SCSI (Foreign I/O Module) (NCR53c710 driver)    |	Raven+ w Core SCSI (Foreign I/O Module) (NCR53c710
> Raven T' Core LAN (802.3) (Foreign I/O Module) (Lasi_82596 dr |	Raven+ w Core PC Keyboard (Foreign I/O Module) (PS/
> Raven T' Core PC Keyboard (Foreign I/O Module) (PS/2 driver)  |	Raven+ w Core BA (Bus Adapter) (Lasi driver)
> Raven T' Core PC Floppy (Foreign I/O Module)		      <
> Raven T' Wax HIL (Foreign I/O Module) (HIL driver)	      <
> Raven T' Wax RS-232 (Foreign I/O Module) (Serial driver)      <
> Raven T' GSC Core Graphics (Foreign I/O Module)		      <
> Raven T' Core BA (Bus Adapter) (Lasi driver)		      <
> Raven T' Wax BA (Bus Adapter) (Wax driver)		      <
> Raven T' Wax EISA BA (Bus Adapter)			      <
> U2-IOA BC Runway Port (IOA) (x2)				U2-IOA BC Runway Port (IOA) (x2)
> 							      >	Dino PCI Bridge (Bus Bridge to Foreign Bus) (Dino driver)
> 							      >	Cujo PCI Bridge (Bus Bridge to Foreign Bus) (Dino driver)
> 							      >
> 							      >	53c875 (Symbios Logic Inc. (formerly NCR)) (SYM8xx driver)
> 							      >	DECchip 21142/43 (Digital Equipment Corporation) (Tulip drive
> 							      >	Visualize FX4 (Hewlett-Packard Company)
> 
> This is diff -y of devices list grab from web h/w db (may be c360 list could be confirmed by James with a dmesg file?)
> It help me to point out 2 big diff: scsi Zalon driver and Lasi_82596 Lan nic (I removed HIL modules simply because no device 
> available).
> 
> That said the system always became to hang when I start a large disk i/o with a find into a linux kernel for example and also by 
> accident I also start a kernel without Lasi module (and iirc the same pb occured) but in any case I could make it leave without 
> Zalon driver; or did I miss something else in my .config (so much diff between the 2 config I used).
> 
> (C110 need long hours to compile the kernel :( but that is all I have at home)
> 
> > You might need to add pdc_io_reset_devices() to ccio_ioc_init()
> > since we moved that out of the common code path.
> 
> hmm I don't see such stuff in patches I grab of jejb changes?
> Any way I see what you did in sba_hw_init() (I will so be able to reproduce it ;) )
> 
> > I don't see that
> > in CCIO driver and it's not clear to me if HIL or LAN need it on C110.
> > 
> > It *might* need pdc_io_reset() call instead (or in addition)
> > but I don't know.  Just another thing to be aware of.
> > 
> Thanks for all kind advise (it will just take me much more test and so many time before I could figure out the actual pb)
> 
> Joel
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



From - Thu Nov 08 21:31:44 2018
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Subject: Re: [parisc-linux] Voodoo 2
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Xref: news.gmane.org gmane.linux.ports.parisc:21398

On Tuesday 13 April 2004 03:59 am, Helge Deller wrote:
> My above test was with the sstfb driver built-in into the kernel and with
> all other graphics drivers (incl. stifb and STI text console) disabled.
>
> Then, in a second test I enabled STIFB, and choosed SSTFB as module.

ok, here's what i found ...

the card i originally tried doesnt seem to work atm ... it's the obsidian card 
that was top of the line in its day because it's basically 2 voodoo2's on 1 
pci card ... when i modprobe the module, machine locks up ... when i boot 
with the driver built in, it dies, but i can at least see a bunch of oops 
messages ;)

i had another voodoo2 card, a sti black magic, and it works as you 
advertise :)

thanks
-mike


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From: "Joel Soete" <Soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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Cc: Grant Grundler <grundler@parisc-linux.org>,
	PA-RISC Linux Port <parisc-linux@lists.parisc-linux.org>
To: "Ryan Bradetich" <rbradetich@uswest.net>
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Hello Ryan,

>I finally had some time to compile a kernel and boot some systems today
>so I tested the latest CVS head on my C200 and a J200 to see if I could
>duplicate the problem you are seeing.
>
>The J200 is basically a dual processor C100 so it hould be very close
>to the C110 (i.e. no PCI, EISA based, etc)  The device names are
>different so I am not sure if it is close enough but I still think it is
>a relevant data point.
>
No more clue sorry

[snip]

>Would you be interested in trying the lifimage I complied and
>successfully booted on both the J200 and the C110?

Just a stupid question: where can I grab this lifimage?

> If the lifimage
>boots on your system then we localize the problem down to possible tool
>chain or .config problem (I used the defconfig).

Right I forgot to test defconfig.

That said, to get you more detail on my pb:
 - in genral i can reach to boot the system with 2.6.5-paX
 - the pb occurs when I try high i/o rate on disk (ie  a find, a fsck ,
a tar or some time a simple cp of the kernel from a fs to another one)
 - the pb can also occurs at boot time if a fs is not clear (a fsck is
so requested) or if a raid partition has to be sync (ie once again high i/o
rate on disks).

Thanks for your attention,

   Joel


PS: This system boot and mainly works always fine with a 2.4 and 2.6.3-rc1-pa3
(this is mainly this last one I used as reference), so I exclude hw pb ;)
(execpted that the battery saving system time (and more) has to be replaced)

hmm, I also read back my first report of a pb on this c110 and noticed that
everything appears for me when I tried 2.6.4-pa[12]. I so try to grab cvs
kernel tree dated of the Makefile 2.6.3-rc1-pa3 and a saved tbz of 2.6.4-pa2
to build a diff. The diff file is of about 14Mb :_(

Historically there was not a lot of big changes specific to parisc between
those releases: the main one being the jejb change in ccio-dma (and related).
I so try to revert it and it seems to works better (with 2 different config
file)
until system hang at boot again because it has to re-sync a md (the root)
device. It seems so that ccio-dma changes was not the cause but much better
a revelator of a hidden pb (In fact I never reach to work with 2.6 on this
c110 without replacing cio_mem_ratio = 4 by 2)







----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] PA8800 support issues
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Hi,
I just committed the first bit of PA8800 support while poking
at a cast off PA8800 prototype.  In addition to problems described
below, I need to fix (at least) two issues in sba_iommu driver:
1) need to add ZX1 IODC values so sba_probe() will claim the IOC(s)
2) IOVA is not zero based (we think) - need to read that from ZX1
   chips and use it to mask/OR values where we convert iopdir
   indexes to/from IOVAs.

But we haven't gotten that far yet.
The palinux kernel is now panicing nicely here:
...
Determining PDC firmware type: 64 bit PAT.
model 000088a0 00000491 00000000 00000002 d4936494c9f85489 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 20 rev 4 (0x00000284)
capabilities 0x35
model 9000/785/C8000
Only equivalent aliasing supported
Kernel panic: SMP kernel required to avoid non-equivalent aliasing
In idle task - not syncing

This corresponds to arch/parisc/kernel/cache.c:
...
        if ((boot_cpu_data.pdc.capabilities & PDC_MODEL_NVA_MASK) ==
                                                PDC_MODEL_NVA_UNSUPPORTED) {
                printk(KERN_WARNING "Only equivalent aliasing supported\n");
#ifndef CONFIG_SMP
                panic("SMP kernel required to avoid non-equivalent aliasing");
#endif
        }


The PAT PDC ERS describes NVA bits like this:

| The NVA (Non-equivalent Virtual Aliasing) field is a two bit field
| which indicates whether non-equivalent virtual aliasing is supported
| on the platform, and if so, if it has a performance impact. NVA field
| values are shown in the following table:
| Key / Description
| 0b00 / Non-equivalent aliasing supported without performance penalty.
| 0b01 / Non-equivalent aliasing supported with performance penalty.
| 0b10 / Reserved
| 0b11 / Non-equivalent aliasing not supported. Data corruption or HPMCs
         may result.
| Superdome will set the NVA bits to 0b11.

And apperently PA8800 on ZX1.

So what are my choices?
1) get SMP working on 2.6.x
	o already working on that but can't figure out why set_bit()
          is crashing my single CPU a500.
	o long term, we still want to run UP kernels to narrow down SW bugs.
2) hack VM support so whatever magic makes NVA work on SMP=y is a
   build time option that works when CONFIG_SMP=n as well.
 	o way beyond my skill set and time I've got to hack on palinux. 
	o may not be feasible...

Any other ideas?


BTW, I found one more bit of documentation relevant to
non-equivalent aliases:
| PA-RISC, version 1.1, edition 3, described updated rules for
| non-equivalent aliasing in order to support Tornado in KittyHawk.
| In truth, Tornado did not require that those aliasing rules be strictly
| enforced, since it was overdesigned to increase debugability. However,
| any PA-RISC processor interfacing to a shared Merced bus definition
| requires strict adherence to those aliasing rules.
|
| Specifically, if a load miss transaction is ever issued that finds both
| a Shared copy and a Dirty copy of the same line, the transaction will
| hang in the snoop phase, until the transaction times out and crashes
| the system. This situation can be caused by allowing non-equivalent
| read translations to exist while there is an existing write translation,
| or by not flushing all dirty data out of the caches (and Syncing) before
| re-enabling the read translations. Flush-only translations, however,
| are safe, since it is illegal to respond Shared to a flush transaction.

I'm hoping that's relevant to the current work on better cache support.

thanks,
grant


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BitDefender found an infected object in a message that was sent from
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Virus: Win32.Netsky.P@mm


We strongly advise you to check your computer using BitDefender
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The BitDefender Lab
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From - Thu Nov 08 21:31:45 2018
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From: Ulrich Deiters <ukd@xenon.pc.Uni-Koeln.DE>
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Subject: [parisc-linux] B1000/C3000
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I just wanted to install parisc-linux 3.0r2 on a HP C3000, 
using an external serial terminal. The installation went more 
or less smoothly, but the X server does not come up.

The kdm log says "no screens found".

I note that there is no X*screens file in /etc/kde2/kdm, but I do 
not know whether this is normal or not - this is my first Debian 
installation.

What must I do to get my X server running? Or is it hopeless, 
because the HP graphics card (FX2) is not supported?

Regards,

Ulrich Deiters


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From: "Joel Soete" <soete.joel@tiscali.be>
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>What must I do to get my X server running? Or is it hopeless, 
>because the HP graphics card (FX2) is not supported?

I never know why but unfortunately it isn't supported :(

Joel

----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
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Subject: Re: [parisc-linux] C7497A DDS-4 Tape Drive
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Xref: news.gmane.org gmane.linux.ports.parisc:21406

>Does anyone happen to know where one could buy a C7497A DDS-4 tape
drive
>for the HP tape array 5300. I have tried HP (new & re-marketed),
other
>HP resellers such as my self, Ebay, Google searches, and a few other
on
>line wholesalers / inventory posting sites with no luck. These things
>seem to be a tough cookie to locate. If anyone knows of a company or
>individual that I can obtain one from, please let me know. I cant use
>any substitutions, its got to be the C7497A
>
[resend via the mailinglist because cypress-tech.com doesn't resolve
here at the moment]

http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=4121818676 

seems to have 2, where the last auction ended on 13/4/2004 with none
sold at
400 Euro each (about US$ 500). I assume he still has them.

If you don't speak German, I would be happy to contact him for you, but
since
he's a professional seller (4559 feedbacks, 99.2% positive) I think you
could
try contacting him (her?) in English.

As for searches, I tried 'c7497a euro' on google; this was on the first
page.

Good luck,
Jurriaan

If it's for an obscenely rich client, how about a nice workstation for
me?
A C3000 will do, a J6700 would be better :-)


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Subject: [parisc-linux] 2.6.5-pa7 failled to build?
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Hi all,

I just try to recompile 2.6.5-pa7 32bit on my b2k and it failled with following
ld message:
[snip]
  gcc -Wp,-MD,drivers/usb/host/.ohci-hcd.o.d -nostdinc -iwithprefix include
-D__KERNEL__ -Iinclude  -D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes
-Wno-trigraphs -fno-strict-aliasing -fno-common -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000 -O2 -fomit-frame-pointer
    -DKBUILD_BASENAME=ohci_hcd -DKBUILD_MODNAME=ohci_hcd -c -o drivers/usb/host/ohci-hcd.o
drivers/usb/host/ohci-hcd.c
In file included from drivers/usb/host/ohci-hcd.c:135:
drivers/usb/host/ohci-dbg.c: In function `ohci_dump_td':
drivers/usb/host/ohci-dbg.c:282: warning: passing arg 1 of `__swab32p' discards
qualifiers from pointer target type
drivers/usb/host/ohci-dbg.c:284: warning: passing arg 1 of `__swab32p' discards
qualifiers from pointer target type
drivers/usb/host/ohci-dbg.c:309: warning: passing arg 1 of `__swab32p' discards
qualifiers from pointer target type
drivers/usb/host/ohci-dbg.c:310: warning: passing arg 1 of `__swab32p' discards
qualifiers from pointer target type
drivers/usb/host/ohci-dbg.c:320: warning: passing arg 1 of `__swab32p' discards
qualifiers from pointer target type
drivers/usb/host/ohci-dbg.c:320: warning: passing arg 1 of `__swab32p' discards
qualifiers from pointer target type
drivers/usb/host/ohci-dbg.c:324: warning: passing arg 1 of `__swab16p' discards
qualifiers from pointer target type
In file included from drivers/usb/host/ohci-hcd.c:135:
drivers/usb/host/ohci-dbg.c: In function `ohci_dump_ed':
drivers/usb/host/ohci-dbg.c:342: warning: passing arg 1 of `__swab32p' discards
qualifiers from pointer target type
drivers/usb/host/ohci-dbg.c:361: warning: passing arg 1 of `__swab32p' discards
qualifiers from pointer target type
drivers/usb/host/ohci-dbg.c:361: warning: passing arg 1 of `__swab32p' discards
qualifiers from pointer target type
   ld   -r -o drivers/usb/host/built-in.o drivers/usb/host/ohci-hcd.o
make -f scripts/Makefile.build obj=drivers/usb/image
   rm -f drivers/usb/image/built-in.o; ar rcs drivers/usb/image/built-in.o
Inconsistency detected by ld.so: dynamic-link.h: 164: elf_get_dynamic_info:
Assertion `info[9]->d_un.d_val == sizeof (Elf32_Rela)' failed!
make[3]: *** [drivers/usb/image/built-in.o] Error 127
make[2]: *** [drivers/usb/image] Error 2
make[1]: *** [drivers/usb] Error 2
make: *** [drivers] Error 2

This b2k is running a sid debian install with mainly:
# dpkg -l gcc binutils libc6
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name                       Version                    Description
+++-==========================-==========================-====================================================================
ii  gcc                        3.3.3-2                    The GNU C compiler
ii  binutils                   2.14.90.0.7-6              The GNU assembler,
linker and binary utilities
ii  libc6                      2.3.2.ds1-11               GNU C Library:
Shared libraries and Timezone data

And my config file is nearly the c3k one:
# diff -Nau .config arch/parisc/configs/c3000_defconfig 
--- .config	2004-04-14 13:29:41.874241120 +0200
+++ arch/parisc/configs/c3000_defconfig	2004-04-08 12:38:54.000000000 +0200
@@ -70,14 +70,14 @@
 CONFIG_IOSAPIC=y
 CONFIG_IOMMU_SBA=y
 CONFIG_SUPERIO=y
-CONFIG_CHASSIS_LCD_LED=y
+# CONFIG_CHASSIS_LCD_LED is not set
 # CONFIG_PDC_CHASSIS is not set
 
 #
 # PCMCIA/CardBus support
 #
 CONFIG_PCMCIA=m
-# CONFIG_PCMCIA_DEBUG is not set
+CONFIG_PCMCIA_DEBUG=y
 CONFIG_YENTA=m
 CONFIG_CARDBUS=y
 # CONFIG_I82092 is not set
@@ -520,7 +520,8 @@
 #
 # Ethernet (10000 Mbit)
 #
-# CONFIG_IXGB is not set
+CONFIG_IXGB=y
+CONFIG_IXGB_NAPI=y
 # CONFIG_FDDI is not set
 # CONFIG_HIPPI is not set
 CONFIG_PPP=m

Any idea?

Joel

----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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>> If the lifimage
>>boots on your system then we localize the problem down to possible tool
>>chain  or .config problem (I used the defconfig).
>
>Right I forgot to test defconfig.

I remember now: I just used to use the defconfig of which I remove all HIL
support (no device available) for this c110 (no specific config file).

Joel


----------------------------------------------------------------------------------------
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From - Thu Nov 08 21:31:45 2018
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From: Ryan Bradetich <rbradetich@uswest.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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To: Joel Soete <Soete.joel@tiscali.be>
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> >Would you be interested in trying the lifimage I complied and
> >successfully booted on both the J200 and the C110?
> 
> Just a stupid question: where can I grab this lifimage?

I can make this lifimage available ... I will you a url once I have this
setup.

> > If the lifimage
> >boots on your system then we localize the problem down to possible tool
> >chain or .config problem (I used the defconfig).
> 
> Right I forgot to test defconfig.
> 
> That said, to get you more detail on my pb:
>  - in genral i can reach to boot the system with 2.6.5-paX
>  - the pb occurs when I try high i/o rate on disk (ie  a find, a fsck ,
> a tar or some time a simple cp of the kernel from a fs to another one)
>  - the pb can also occurs at boot time if a fs is not clear (a fsck is
> so requested) or if a raid partition has to be sync (ie once again high i/o
> rate on disks).

Ah .. I was under the impression it was a boot problem.  I will perform
the find, fsck and tar tests tests ... I only have a small disk (~500MB)
in the system so i will probably need to setup some external disks.  I
will try the tests w/o using software raid first, then add in the
software raid as a an additional variable.  This may take me a couple of
days to get this accomplished (busy work schedule :().

Thanks!

- Ryan

> Thanks for your attention,
> 
>    Joel
> 
> 
> PS: This system boot and mainly works always fine with a 2.4 and 2.6.3-rc1-pa3
> (this is mainly this last one I used as reference), so I exclude hw pb ;)
> (execpted that the battery saving system time (and more) has to be replaced)
> 
> hmm, I also read back my first report of a pb on this c110 and noticed that
> everything appears for me when I tried 2.6.4-pa[12]. I so try to grab cvs
> kernel tree dated of the Makefile 2.6.3-rc1-pa3 and a saved tbz of 2.6.4-pa2
> to build a diff. The diff file is of about 14Mb :_(
> 
> Historically there was not a lot of big changes specific to parisc between
> those releases: the main one being the jejb change in ccio-dma (and related).
> I so try to revert it and it seems to works better (with 2 different config
> file)
> until system hang at boot again because it has to re-sync a md (the root)
> device. It seems so that ccio-dma changes was not the cause but much better
> a revelator of a hidden pb (In fact I never reach to work with 2.6 on this
> c110 without replacing cio_mem_ratio = 4 by 2)
> 
> 
> 
> 
> 
> 
> 
> ----------------------------------------------------------------------------------------
> Tiscali ADSL: 35 /mois, la meilleure offre du march!
> http://reg.tiscali.be/default.asp?lg=fr
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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On Wed, 2004-04-14 at 09:36, Ryan Bradetich wrote:
> Ah .. I was under the impression it was a boot problem.  I will perform
> the find, fsck and tar tests tests ... I only have a small disk (~500MB)
> in the system so i will probably need to setup some external disks.  I
> will try the tests w/o using software raid first, then add in the
> software raid as a an additional variable.  This may take me a couple of
> days to get this accomplished (busy work schedule :().

It was (hence 'boot panic' in the title):

http://lists.parisc-linux.org/pipermail/parisc-linux/2004-March/022657.html

So, Joel, are you saying you no-longer see this boot panic problem?

James




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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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Hello Ryan,

>> > >Would you be interested in trying the lifimage I complied and
>> >successfully booted on both the J200 and the C110?
>> 
>> Just a stupid question: where can I grab this lifimage?
>
>I can make this lifimage available ... I will you a url once I have
> this setup.

Great.

>Ah .. I was under the impression it was a boot problem.  I will perform
>the find, fsck and tar tests tests ... I only have a small disk (~500MB)
>in the system so i will probably need to setup some external disks.  I
>will try the tests w/o using software raid first,

Well I didn't suspect raid support because at my office there a 2 running
raid system happy with 2.6.5 though

> then add in the
>software raid as a an additional variable.

But that is logical ;)

>  This may take me a couple of
>days to get this accomplished (busy work schedule :().

Don't worry, for me it's just for fun (but nothing must be more serious than
thaking fun :) )

Thanks a lot for all,
    Joel

----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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Hello James,

>> On Wed, 2004-04-14 at 09:36, Ryan Bradetich wrote:
>> Ah .. I was under the impression it was a boot problem.  I will perform
>> the find, fsck and tar tests tests ... I only have a small disk (~500MB)
>> in the system so i will probably need to setup 
>> ome external disks.  I
>> will try the tests w/o using software raid first, then add in the
>> software raid as a an additional variable.  This may take me a couple
of
>> days to get this accomplished (busy work schedule :().
>
>It was (hence 'boot panic' in the title):
>
>http://lists.parisc-linux.org/pipermail/parisc-linux/2004-March/022657.html

You have absolutly right, please apologies. My wory was to follow up a single
thread: bad idea to not modify the title :(

>So, Joel, are you saying you no-longer see this boot panic problem?

Yes not anymore this panic :)

(sometime, the system still panic but far later, after a fsck or a md sync
[sorry I don't remember with enough acuracy]).

Thanks,
   Joel

----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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On Wed, 2004-04-14 at 12:45, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/04/14 11:45:35
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: cache.c sys_parisc.c 
> 
> Log message:
> Make all shared mappings and all file mappings (including MAP_PRIVATE)
> equivalently mapped.
> 
> This allows us only to flush a single space again in flush_dcache_page().
> 
> The flip side is that now all shared libraries are going to be mapped
> on 4MB boundaries.  This only wastes virtual space, but it may run us
> out of mappings faster than would otherwise happen in ILP32 processes.

Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/cache.c,v
retrieving revision 1.9
diff -u -r1.9 cache.c
--- a/arch/parisc/kernel/cache.c	12 Apr 2004 15:48:00 -0000	1.9
+++ b/arch/parisc/kernel/cache.c	14 Apr 2004 17:42:54 -0000
@@ -265,12 +265,16 @@
 
 		__flush_cache_page(mpnt, addr);
 
-		break;
+		/* If we find an address to flush, that will also
+		 * bring all the private mappings up to date (see
+		 * comment below) */
+		return;
 	}
 
-	/* Private mappings will not have congruent addresses, so we
-	 * have to flush each of them individually to make the change
-	 * in the kernel page visible */
+	/* we have carefully arranged in arch_get_unmapped_area() that
+	 * *any* mappings of a file are always congruently mapped (whether
+	 * declared as MAP_PRIVATE or MAP_SHARED), so we only need
+	 * to flush one address here too */
 	list_for_each(l, &page->mapping->i_mmap) {
 		struct vm_area_struct *mpnt;
 		unsigned long off, addr;
@@ -293,6 +297,8 @@
 			continue;
 
 		__flush_cache_page(mpnt, addr);
+
+		return;
 	}
 }
 EXPORT_SYMBOL(__flush_dcache_page);
Index: arch/parisc/kernel/sys_parisc.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/sys_parisc.c,v
retrieving revision 1.21
diff -u -r1.21 sys_parisc.c
--- a/arch/parisc/kernel/sys_parisc.c	16 Mar 2004 15:39:55 -0000	1.21
+++ b/arch/parisc/kernel/sys_parisc.c	14 Apr 2004 17:42:54 -0000
@@ -93,7 +93,7 @@
 		unsigned long addr, unsigned long len, unsigned long pgoff)
 {
 	struct vm_area_struct *vma;
-	int offset = get_offset(mapping);
+	int offset = mapping ? get_offset(mapping) : 0;
 
 	addr = DCACHE_ALIGN(addr - offset) + offset;
 
@@ -117,8 +117,10 @@
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
-	if (filp && (flags & MAP_SHARED)) {
+	if (filp) {
 		addr = get_shared_area(filp->f_mapping, addr, len, pgoff);
+	} else if(flags & MAP_SHARED) {
+		addr = get_shared_area(NULL, addr, len, pgoff);
 	} else {
 		addr = get_unshared_area(addr, len);
 	}



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Subject: Re: [parisc-linux] B1000/C3000
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On Wednesday 14 April 2004 11:44, Ulrich Deiters wrote:
> I just wanted to install parisc-linux 3.0r2 on a HP C3000, 
> using an external serial terminal. The installation went more 
> or less smoothly, but the X server does not come up.
> 
> The kdm log says "no screens found".
> 
> I note that there is no X*screens file in /etc/kde2/kdm, but I do 
> not know whether this is normal or not - this is my first Debian 
> installation.
> 
> What must I do to get my X server running? Or is it hopeless, 
> because the HP graphics card (FX2) is not supported?

FX2 is not supported, but since you install via serial terminal,
you could still run a X Server on your local PC-machine (e.g. via Xnest)
and display there what you would see on the PA-machine.

Helge


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From: "Andy Walker" <ajwalker@broadpark.no>
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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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Joel Soete wrote:

> That said, I am not able to link jejb with what I observe but here is
> the story.
> The system boot but hang very quickly as soon as io rate increase as per
> a find of a file name :( (reproducible on request)
> I then get mesg
>
> arq->state 2
> Badness in as_requeue_request at drivers/block/as-iosched.c:1479
> Kernel addresses on the stack:
> [snip]
>   [<10124528>] printk+0x144/0x1c0
>   [<101036bc>] dump_stack+0x18/0x24
>   [<102276a0>] as_requeue_request+0x5c/0x17c
>   [<1021e630>] elv_requeue_request+0x30/0x3c
>   [<1023baf4>] scsi_request_fn+0x220/0x2bc
>   [<1021e630>] elv_requeue_request+0x30/0x3c
>   [<102212b8>] blk_insert_request+0xd8/0xf0
>   [<1023a978>] scsi_queue_insert+0x6c/0xa0
>   [<1023b7bc>] scsi_prep_fn+0xc4/0x1dc
>   [<102368f8>] scsi_dispatch_cmd+0x118/0x22c
>   [<1021e820>] elv_remove_request+0x34/0x44
>   [<1023ba80>] scsi_request_fn+0x1ac/0x2bc
>   [<102273f0>] as_next_request+0x44/0x54
>   [<10228218>] as_work_handler+0x44/0x48
>   [<101344e4>] worker_thread+0x1e4/0x280
>   [<101200cc>] schedule+0x3f8/0x718
>   [<101385f4>] kthread+0xdc/0xe4
>   [<10108c5c>] ret_from_kernel_thread+0x1c/0x24
>
> [snip]
>
> it seems to be infinite loop :(
>
> Any idea?
>
> Thanks in advance,
>      Joel

I'm experiencing a very similar problem with 2.6.5-pa7 on a C180. I'm in
unfortunate position that my ext3 root filesystem needs INFO recovery,
but as soon as the recovery kicks in I get:

arq->state 2
Badness in as_requeue_request at drivers/block/as-iosched.c:1479
Kernel addresses on the stack:
[snip]
  [<10125d0c>] printk+0x188/0x1c8
  [<10105638>] dump_stack+0x18/0x24
  [<101fb740>] as_requeue_request+0x64/0x10c
  [<101f24b0>] elv_requeue_request+0x2c/0x38
  [<101f51b4>] blk_insert_request+0xf4/0xfc
  [<10211c2c>] scsi_queue_insert+0x68/0x9c
  [<102376f4>] hp_sdc_tasklet+0x80/0x160
  [<1020dd2c>] scsi_softirq+0xfc/0x11c
  [<10129990>] do_softirq+0xf4/0xf8
  [<10129e68>] ksoftirqd+0x84/0xf0
  [<101398a0>] kthread+0xe8/0xf0
  [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24

Can't point to the last kernel version that worked, because this is
actually the first kernel I've built for the C180, having just
finished bootstrapping Gentoo. But I'll be happy to provide what
info I can - seems this problem is real if both a C110 and a C180
are suffering from it, and they're very similar pieces of hardware.

cheers
-Andy


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Dear Joel, dear Helge,

thank you for your fast reaction! As the C3000 is my "local PC",
running the X system through another PC or X terminal is not
really an option. I would have to tidy up my desk in order to
make space for the additional equipment ... no, it would probably
be easier to write an FX2 driver. :-)

Is it possible to use a non-HP graphics card in a HP computer,
or is the question sacrilegious?

Regards,

Ulrich



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Subject: Re: [parisc-linux] B1000/C3000
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> Is it possible to use a non-HP graphics card in a HP computer,
> or is the question sacrilegious?

Get a HP Vis EG card.  A Voodoo2 may also work.  Search the list.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
Date: Wed, 14 Apr 2004 20:52:37 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:21421

Andy,

Many Thanks you save my mind: I was becoming crazy ;)

That said, thanks to viewcvs, cvs and some tbz I recover from my systems, I reach to rebuild on my b2k at the office:
2.6.3-pa2 (runing simultaneoulsy 2 find on different linux tree, a tar of one of those tree) survive :)
2.6.4-rc1-pa3 same test: survive (so no pb with ccio-dma changes) :)
but 2.6.4-rc4-pa6 died with same messages.

and too bad after such crash not more possible to reboot even with 2.6.4-rc1-pa3 which panic:
[snip]
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 520k freed

Stack Dump:
  10380418:  10380418 00048308 00000040 ffe01800
  10380408:  ffe01801 1046f010 10380080 003803b8
[snip]
  10380038:  00000000 00000000 00000000 00000000
  10380028:  00000000 00000000 00000000 00000000

Kernel addresses on the stack:
  [<10125aec>] call_console_drivers+0xd0/0x17c
  [<10106020>] parisc_terminate+0x60/0xb8
  [<10111cd0>] pdc_console_restart+0x4c/0x68
  [<101061bc>] handle_interruption+0x144/0x5b0
  [<1010b088>] intr_check_sig+0x0/0xc
  [<1025e5bc>] ncr_reset_scsi_bus+0x158/0x2b8


High Priority Machine Check (HPMC): Code=1 regs=10380080 (Addr=00000000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111100100001110 Not tainted
r00-03  00000000 103a5010 1025e4b8 0000000f
r04-07  17edeba0 17ec0000 00000002 103a5010
r08-11  00000000 17ec4110 b6da8c80 1046e060
r12-15  100fe244 00000000 10394010 1046e010
r16-19  f00010f4 f00000ac f00000a4 f3f8c80e
r20-23  00000001 0000000f 0000000e 1046d010
r24-27  17ec0000 00000000 0000c800 1037d010
r28-31  f3f8c800 00005dc0 17ec4380 1025e57c
sr0-3   00000000 00000003 00000000 00000003
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1025e5b8 1025e5bc
  IIR: d6c30a3f    ISR: 00000000  IOR: f3f8c80c
  CPU:        0   CR30: 17ec4000 CR31: 103dc000
  ORIG_R28: 00000000
  IAOQ[0]: ncr_reset_scsi_bus+0x154/0x2b8
  IAOQ[1]: ncr_reset_scsi_bus+0x158/0x2b8
  RP(r2): ncr_reset_scsi_bus+0x54/0x2b8

(already retry 2 time even after a cycle power off/on?

and now with 2.6.3-pa2 up again pfff)

I can still restric research between 2.6.4-rc3-pa3 (which I missed in my investigation?) and 2.6.4-rc4-pa6?

hth,
	Joel

Andy Walker wrote:
> Joel Soete wrote:
> 
> 
>>That said, I am not able to link jejb with what I observe but here is
>>the story.
>>The system boot but hang very quickly as soon as io rate increase as per
>>a find of a file name :( (reproducible on request)
>>I then get mesg
>>
>>arq->state 2
>>Badness in as_requeue_request at drivers/block/as-iosched.c:1479
>>Kernel addresses on the stack:
>>[snip]
>>  [<10124528>] printk+0x144/0x1c0
>>  [<101036bc>] dump_stack+0x18/0x24
>>  [<102276a0>] as_requeue_request+0x5c/0x17c
>>  [<1021e630>] elv_requeue_request+0x30/0x3c
>>  [<1023baf4>] scsi_request_fn+0x220/0x2bc
>>  [<1021e630>] elv_requeue_request+0x30/0x3c
>>  [<102212b8>] blk_insert_request+0xd8/0xf0
>>  [<1023a978>] scsi_queue_insert+0x6c/0xa0
>>  [<1023b7bc>] scsi_prep_fn+0xc4/0x1dc
>>  [<102368f8>] scsi_dispatch_cmd+0x118/0x22c
>>  [<1021e820>] elv_remove_request+0x34/0x44
>>  [<1023ba80>] scsi_request_fn+0x1ac/0x2bc
>>  [<102273f0>] as_next_request+0x44/0x54
>>  [<10228218>] as_work_handler+0x44/0x48
>>  [<101344e4>] worker_thread+0x1e4/0x280
>>  [<101200cc>] schedule+0x3f8/0x718
>>  [<101385f4>] kthread+0xdc/0xe4
>>  [<10108c5c>] ret_from_kernel_thread+0x1c/0x24
>>
>>[snip]
>>
>>it seems to be infinite loop :(
>>
>>Any idea?
>>
>>Thanks in advance,
>>     Joel
> 
> 
> I'm experiencing a very similar problem with 2.6.5-pa7 on a C180. I'm in
> unfortunate position that my ext3 root filesystem needs INFO recovery,
> but as soon as the recovery kicks in I get:
> 
> arq->state 2
> Badness in as_requeue_request at drivers/block/as-iosched.c:1479
> Kernel addresses on the stack:
> [snip]
>   [<10125d0c>] printk+0x188/0x1c8
>   [<10105638>] dump_stack+0x18/0x24
>   [<101fb740>] as_requeue_request+0x64/0x10c
>   [<101f24b0>] elv_requeue_request+0x2c/0x38
>   [<101f51b4>] blk_insert_request+0xf4/0xfc
>   [<10211c2c>] scsi_queue_insert+0x68/0x9c
>   [<102376f4>] hp_sdc_tasklet+0x80/0x160
>   [<1020dd2c>] scsi_softirq+0xfc/0x11c
>   [<10129990>] do_softirq+0xf4/0xf8
>   [<10129e68>] ksoftirqd+0x84/0xf0
>   [<101398a0>] kthread+0xe8/0xf0
>   [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24
> 
> Can't point to the last kernel version that worked, because this is
> actually the first kernel I've built for the C180, having just
> finished bootstrapping Gentoo. But I'll be happy to provide what
> info I can - seems this problem is real if both a C110 and a C180
> are suffering from it, and they're very similar pieces of hardware.
> 
> cheers
> -Andy
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


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On Wed, 14 Apr 2004, John David Anglin wrote:

> > Is it possible to use a non-HP graphics card in a HP computer,
> > or is the question sacrilegious?
>
> Get a HP Vis EG card.  A Voodoo2 may also work.  Search the list.

I think this should be added to the FAQ, like

"What non-HP PCI graphic cards are supported/work with PA-RISC Linux"


Greetings,
   Max


From - Thu Nov 08 21:31:46 2018
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.6.5-pa7 failled to build?
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Fortunately build and boot fine on 64bits n4k system (build with gcc-hppa64-3.0)
btw the 32bit one was build with gcc-3.3.3: is there known issue?

Tx,
	Joel

Joel Soete wrote:
> Hi all,
> 
> I just try to recompile 2.6.5-pa7 32bit on my b2k and it failled with following
> ld message:
> [snip]
>   gcc -Wp,-MD,drivers/usb/host/.ohci-hcd.o.d -nostdinc -iwithprefix include
> -D__KERNEL__ -Iinclude  -D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes
> -Wno-trigraphs -fno-strict-aliasing -fno-common -pipe -mno-space-regs -mfast-indirect-calls
> -mdisable-fpregs -ffunction-sections -march=2.0 -mschedule=8000 -O2 -fomit-frame-pointer
>     -DKBUILD_BASENAME=ohci_hcd -DKBUILD_MODNAME=ohci_hcd -c -o drivers/usb/host/ohci-hcd.o
> drivers/usb/host/ohci-hcd.c
> In file included from drivers/usb/host/ohci-hcd.c:135:
> drivers/usb/host/ohci-dbg.c: In function `ohci_dump_td':
> drivers/usb/host/ohci-dbg.c:282: warning: passing arg 1 of `__swab32p' discards
> qualifiers from pointer target type
> drivers/usb/host/ohci-dbg.c:284: warning: passing arg 1 of `__swab32p' discards
> qualifiers from pointer target type
> drivers/usb/host/ohci-dbg.c:309: warning: passing arg 1 of `__swab32p' discards
> qualifiers from pointer target type
> drivers/usb/host/ohci-dbg.c:310: warning: passing arg 1 of `__swab32p' discards
> qualifiers from pointer target type
> drivers/usb/host/ohci-dbg.c:320: warning: passing arg 1 of `__swab32p' discards
> qualifiers from pointer target type
> drivers/usb/host/ohci-dbg.c:320: warning: passing arg 1 of `__swab32p' discards
> qualifiers from pointer target type
> drivers/usb/host/ohci-dbg.c:324: warning: passing arg 1 of `__swab16p' discards
> qualifiers from pointer target type
> In file included from drivers/usb/host/ohci-hcd.c:135:
> drivers/usb/host/ohci-dbg.c: In function `ohci_dump_ed':
> drivers/usb/host/ohci-dbg.c:342: warning: passing arg 1 of `__swab32p' discards
> qualifiers from pointer target type
> drivers/usb/host/ohci-dbg.c:361: warning: passing arg 1 of `__swab32p' discards
> qualifiers from pointer target type
> drivers/usb/host/ohci-dbg.c:361: warning: passing arg 1 of `__swab32p' discards
> qualifiers from pointer target type
>    ld   -r -o drivers/usb/host/built-in.o drivers/usb/host/ohci-hcd.o
> make -f scripts/Makefile.build obj=drivers/usb/image
>    rm -f drivers/usb/image/built-in.o; ar rcs drivers/usb/image/built-in.o
> Inconsistency detected by ld.so: dynamic-link.h: 164: elf_get_dynamic_info:
> Assertion `info[9]->d_un.d_val == sizeof (Elf32_Rela)' failed!
> make[3]: *** [drivers/usb/image/built-in.o] Error 127
> make[2]: *** [drivers/usb/image] Error 2
> make[1]: *** [drivers/usb] Error 2
> make: *** [drivers] Error 2
> 
> This b2k is running a sid debian install with mainly:
> # dpkg -l gcc binutils libc6
> Desired=Unknown/Install/Remove/Purge/Hold
> | Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
> |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
> ||/ Name                       Version                    Description
> +++-==========================-==========================-====================================================================
> ii  gcc                        3.3.3-2                    The GNU C compiler
> ii  binutils                   2.14.90.0.7-6              The GNU assembler,
> linker and binary utilities
> ii  libc6                      2.3.2.ds1-11               GNU C Library:
> Shared libraries and Timezone data
> 
> And my config file is nearly the c3k one:
> # diff -Nau .config arch/parisc/configs/c3000_defconfig 
> --- .config	2004-04-14 13:29:41.874241120 +0200
> +++ arch/parisc/configs/c3000_defconfig	2004-04-08 12:38:54.000000000 +0200
> @@ -70,14 +70,14 @@
>  CONFIG_IOSAPIC=y
>  CONFIG_IOMMU_SBA=y
>  CONFIG_SUPERIO=y
> -CONFIG_CHASSIS_LCD_LED=y
> +# CONFIG_CHASSIS_LCD_LED is not set
>  # CONFIG_PDC_CHASSIS is not set
>  
>  #
>  # PCMCIA/CardBus support
>  #
>  CONFIG_PCMCIA=m
> -# CONFIG_PCMCIA_DEBUG is not set
> +CONFIG_PCMCIA_DEBUG=y
>  CONFIG_YENTA=m
>  CONFIG_CARDBUS=y
>  # CONFIG_I82092 is not set
> @@ -520,7 +520,8 @@
>  #
>  # Ethernet (10000 Mbit)
>  #
> -# CONFIG_IXGB is not set
> +CONFIG_IXGB=y
> +CONFIG_IXGB_NAPI=y
>  # CONFIG_FDDI is not set
>  # CONFIG_HIPPI is not set
>  CONFIG_PPP=m
> 
> Any idea?
> 
> Joel
> 
> ----------------------------------------------------------------------------------------
> Tiscali ADSL: 35 /mois, la meilleure offre du march!
> http://reg.tiscali.be/default.asp?lg=fr
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


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On Wed, 14 Apr 2004, Randolph Chung wrote:

> > "What non-HP PCI graphic cards are supported/work with PA-RISC Linux"
>
> would you like to write up the entry and send it to the list?

Okay, it's not a patch/diff, it's not XHTML, but a start:


====
Q: Can I use a non-HP PCI graphic cards with PA-RISC Linux?

A: Depends on which graphics card you are using.

   Most graphics card have to be initialized by the computer
   before it can  be used. Usually this is done by the BIOS on (ix86-PCs),
   the PDC (on PA-RISC) or OpenFirmware (on Sun and MACs), which run a
   initialization programme stored on the graphics card.

   Unfortunately each of these ways is incompatible with each other, so
   you cannot initialize a PC graphics card using the PA-RISC PDC.
   Therefore the graphic card vendors produce different versions for
   each platform (e.g. ATI produces different 'Fire GL' graphics cards for
   PC, MAC and PA-RISC).

   This leads to the following problems:


   - PA-RISC PDC doesn't know how to use a non-HP graphics card

      Eg. you will not be able to use the boot menu with a non-HP graphics
      card.
      Unfortunately we are not able to provide a work-around for this
      problem, since this would require patching the PDC firmware.
      Therefore you have to use the serial console if you want access
      the boot menu.


   - You have to initialize a non-HP graphics card somehow


     1. Linux framebuffer driver
     ---------------------------
     Some graphic cards that can be initialized by the linux framebuffer
     drivers directly, and might work on PA-RISC Linux.
     This is an incomplete list:

       - Voodoo2
       - ATI Rage XL
       - older Matrox Millenium

     So far had success reports for the Voodoo2 and the ATI Rage XL card.
     In combination with the fbdev X-server from XFree86/X.org
     you should able to have a nice X11 desktop.



     2. XFree86/X.org driver
     -----------------------
     Another approach is to use the XFree86/X.org graphic card drivers:

     The XFree86/X.org server contains a small ix86-Emulator that is able
     to initialize some graphic cards on non-ix86 systems. However it
     is far from being perfect, so you shouldn't expect that it will
     work with your card.

     An advantage of this approach is that you would be able to use
     some advanced features of your graphics card, like 2D/3D
     acceleration, graphics overlay etc.

     Unfortunately we haven't heard any success stories from anyone using
     this aproach.
===


Any comments/corrections?


Greetings,
  Max


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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] B1000/C3000
Date: Wed, 14 Apr 2004 19:48:42 -0700
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In reference to a message from M. Grabert, dated Apr 15:
> On Wed, 14 Apr 2004, Randolph Chung wrote:
> 
> > > "What non-HP PCI graphic cards are supported/work with PA-RISC Linux"
> >
> > would you like to write up the entry and send it to the list?
> 
> Okay, it's not a patch/diff, it's not XHTML, but a start:

checked in, thanks.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: "Joel Soete" <Soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
Date: Thu, 15 Apr 2004 09:05:41 +0200
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>That said, thanks to viewcvs, cvs and some tbz I recover from my systems,
I >reach to rebuild on my b2k at the office:
>2.6.3-pa2 (runing simultaneoulsy 2 find on different linux tree, a 
> tar of one of those tree) survive :)
>2.6.4-rc1-pa3 same test: survive (so no pb with ccio-dma changes) :)
>but 2.6.4-rc4-pa6 died with same messages.

Sorry a typo: read 2.6.4-rc3-pa6 in place of rc4 :(

Joel

----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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On Thu, Apr 15, 2004 at 03:04:10AM +0100, M. Grabert wrote:
> Okay, it's not a patch/diff, it's not XHTML, but a start:

I've hacked it a bit and committed to CVS (repository "web").
Please submit patches against graphics-howto.x for further
modifications.

Please let me know if you are (a) ok with the "Artistic Commons License"
and (b) changes I made to the text.

thanks,
grant


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This is a multipart message in MIME format.
--=_alternative 0066351488256E77_=
Content-Type: text/plain; charset="US-ASCII"

Hi,

I have found this virus mail alert for one of the mails which I had never 
sent. The mail is attached below, please let me know what shall I do to 
remove it. Thanks.

Delivery Failure Report
Your document:
Re: website
was not delivered to:
office@dr-weber-partner.de
because:
550 5.7.1 Message content rejected, id=11443-09 - VIRUS: Worm.SomeFool.P

What should you do?
You can resend the undeliverable document to the recipients listed above 
by choosing the Resend button or the Resend command on the Actions menu. 
Once you have resent the document you may delete this Delivery Failure 
Report.
If resending the document is not successful you will receive a new failure 
report.
Unless you receive other Delivery Failure Reports, the document was 
successfully delivered to all other recipients.


HDQMTA/TOSHIBA_TAEC, SanJose1/TOSHIBA_TAEC



To:
office@dr-weber-partner.de


cc:



Date:
10:54:41 AM ZE2 Today



Subject:
Re: website



Best Regards,

Praveen Chand
Toshiba America Electronic Components Inc.
9775 Toledo Way,
Irvine CA-92618
949 455 2288 (Work)
--=_alternative 0066351488256E77_=
Content-Type: text/html; charset="US-ASCII"


<br><font size=2 face="sans-serif">Hi,</font>
<br>
<br><font size=2 face="sans-serif">I have found this virus mail alert for
one of the mails which I had never sent. The mail is attached below, please
let me know what shall I do to remove it. Thanks.</font>
<br>
<br><font size=4 color=red face="sans-serif"><b>Delivery Failure Report</b></font>
<table width=100%>
<tr>
<td width=14%><font size=1 color=#800000 face="sans-serif">Your document:</font>
<td width=85%><font size=1 face="sans-serif">Re: website</font>
<tr>
<td><font size=1 color=#800000 face="sans-serif">was not delivered to:</font>
<td><font size=1 face="sans-serif">office@dr-weber-partner.de</font>
<tr>
<td><font size=1 color=#800000 face="sans-serif">because:</font>
<td><font size=1 face="sans-serif">550 5.7.1 Message content rejected,
id=11443-09 - VIRUS: Worm.SomeFool.P</font></table>
<p>
<p><font size=1 color=red face="sans-serif">What should you do?</font>
<ul>
<li><font size=1 face="sans-serif">You can resend the undeliverable document
to the recipients listed above by choosing the Resend button or the Resend
command on the Actions menu. &nbsp;</font>
<li><font size=1 face="sans-serif">Once you have resent the document you
may delete this Delivery Failure Report.</font>
<li><font size=1 face="sans-serif">If resending the document is not successful
you will receive a new failure report.</font>
<li><font size=1 face="sans-serif">Unless you receive other Delivery Failure
Reports, the document was successfully delivered to all other recipients.</font></ul>
<p>
<p><font size=1 face="sans-serif">HDQMTA/TOSHIBA_TAEC, SanJose1/TOSHIBA_TAEC</font>
<div align=center>
<p></div>
<br>
<table>
<tr>
<td rowspan=5 valign=top>
<div align=right></div>
<td>
<div align=right><font size=1 face="sans-serif">To:</font></div>
<td valign=top><font size=1 face="sans-serif">office@dr-weber-partner.de</font>
<tr valign=top>
<td>
<div align=right></div>
<td>
<tr>
<td>
<div align=right><font size=1 face="sans-serif">cc:</font></div>
<td valign=top>
<tr valign=top>
<td>
<div align=right></div>
<td>
<tr>
<td>
<div align=right><font size=1 face="sans-serif">Date:</font></div>
<td valign=top><font size=1 face="sans-serif">10:54:41 AM ZE2 Today</font>
<tr valign=top>
<td>
<td>
<div align=right></div>
<td>
<tr>
<td colspan=2>
<div align=right><font size=1 face="sans-serif">Subject:</font></div>
<td valign=top><font size=1 face="sans-serif">Re: website</font></table>
<br>
<br>
<br>
<br><font size=2 face="sans-serif">Best Regards,<br>
<br>
Praveen Chand<br>
Toshiba America Electronic Components Inc.<br>
9775 Toledo Way,<br>
Irvine CA-92618<br>
949 455 2288 (Work)</font>
--=_alternative 0066351488256E77_=--


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------=_NextPart_000_0004_0000205A.00002D66--




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Hi guys,

I got my K-Class 200 working in single kernel mode, it is booting from high voltage scsi - on the normal scsi I got a CD-Rom and a Streamer.

Now I took away the streamer and replaced it with a 50GB SCSI and booted the machine. During boot he can see the HD without any problems (it is a Seagate), and I can also address it via fdisk (it is
sde).

But when I try to partition it, it comes as far as writing superblocks - and then I get a stack dump and the kernel panics, the machine freezes - and that was it.

My guess is that the low voltage scsi-controller cannot handle the size of the HD - could that be?? Anyone have an idea how I could get the disk to work?? I would really love to use it, since I wanted
to use the K-Class 200 as a file server.

Yours,

Jay






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Which kernel?  I will see if I can duplicate on K460.

Thanks,

- Ryan

On Thu, 2004-04-15 at 13:04, Jens_Konrad/Linotype/DE@linotype.com wrote:
> Hi guys,
> 
> I got my K-Class 200 working in single kernel mode, it is booting from high voltage scsi - on the normal scsi I got a CD-Rom and a Streamer.
> 
> Now I took away the streamer and replaced it with a 50GB SCSI and booted the machine. During boot he can see the HD without any problems (it is a Seagate), and I can also address it via fdisk (it is
> sde).
> 
> But when I try to partition it, it comes as far as writing superblocks - and then I get a stack dump and the kernel panics, the machine freezes - and that was it.
> 
> My guess is that the low voltage scsi-controller cannot handle the size of the HD - could that be?? Anyone have an idea how I could get the disk to work?? I would really love to use it, since I wanted
> to use the K-Class 200 as a file server.
> 
> Yours,
> 
> Jay
> 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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On Thu, 15 Apr 2004, Grant Grundler wrote:

> I've hacked it a bit and committed to CVS (repository "web").
> Please submit patches against graphics-howto.x for further
> modifications.
>
> Please let me know if you are (a) ok with the "Artistic Commons License"
> and (b) changes I made to the text.

No problem with (a), and (b) also looks fine, excepts that

1. "Linux framebuffer driver" and "XFree86/X.org driver" should better be
   subtopics to "Which non-HP PCI graphic card with PA-RISC Linux" (sic),
   or perhaps even subtopics "You have to initialize a non-HP graphics ...."

2. It should be "Which non-HP PCI graphic cards *work* with PA-RISC Linux"


Thanks,
  Max



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On Thu, Apr 15, 2004 at 09:04:59PM +0200, Jens_Konrad/Linotype/DE@linotype.com wrote:
> Now I took away the streamer and replaced it with a 50GB SCSI...
...
> My guess is that the low voltage scsi-controller cannot handle the
> size of the HD - could that be??

No. I'm using 73GB drives on my C3000 w/no problem.
Something else is wrong related to the driver stack.
Ryan already asked the obvious question: which kernel version?

grant


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On Thu, Apr 15, 2004 at 08:42:56PM +0100, M. Grabert wrote:
> > Please submit patches against graphics-howto.x for further
> > modifications.
^^^^^^^^^^^^^^^^^^

> No problem with (a), and (b) also looks fine,

ok

> 1. "Linux framebuffer driver" and "XFree86/X.org driver" should better be
>    subtopics to "Which non-HP PCI graphic card with PA-RISC Linux" (sic),
>    or perhaps even subtopics "You have to initialize a non-HP graphics ...."
> 
> 2. It should be "Which non-HP PCI graphic cards *work* with PA-RISC Linux"

Patches would be alot easier...

thanks,
grant


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On Thu, 15 Apr 2004, Grant Grundler wrote:

> > 2. It should be "Which non-HP PCI graphic cards *work* with PA-RISC Linux"
>
> Patches would be alot easier...

Here you go ...

I attached a 'cvs diff -u src/faq/graphics-howto.x', I hope that's the
normal way to prepare do a CVS patch.


Greetings,
  Max
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------=_NextPart_000_0008_00004C5B.00001A0A--




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On Fri, Apr 16, 2004 at 03:26:37AM +0100, M. Grabert wrote:
> I attached a 'cvs diff -u src/faq/graphics-howto.x', I hope that's the
> normal way to prepare do a CVS patch.

Yes - Patch applied!

parisc-linux has a "default ~/.cvsrc" in the "build-tools" CVS repository.
	build-tools/cvsrc

This includes the equivalent to "-u".

thanks,
grant


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Subject: Antwort: Re: [parisc-linux] Problem with SCSI in K-Class
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Hi,

that is a relief :-)) I desperately need these 50GB in this machine.

Well:

it is 2.4.23-pa3, I downloaded the kernel from  http://parisc-linux.org/~rbrad/vmlinux-2.4.23-pa3.bz2 because I needed a kernel supporting Mux. I have not yet built my own kernel, not sure if that
might help.

Since I have three CPUs in this machine, I was planning on building my own kernel anyway. Maybe I should do so, do you think this will help???

Greets,

Jay



                                                                                                                                                                      
                      Grant Grundler                                                                                                                                  
                      <grundler@parisc-linux.org>             An:       Jens_Konrad/Linotype/DE@linotype.com                                                          
                      Gesendet von:                           Kopie:    parisc-linux@lists.parisc-linux.org                                                           
                      parisc-linux-bounces@lists.paris        Thema:    Re: [parisc-linux] Problem with SCSI in K-Class                                               
                      c-linux.org                                                                                                                                     
                                                                                                                                                                      
                                                                                                                                                                      
                      16.04.2004 01:33                                                                                                                                
                                                                                                                                                                      
                                                                                                                                                                      




On Thu, Apr 15, 2004 at 09:04:59PM +0200, Jens_Konrad/Linotype/DE@linotype.com wrote:
> Now I took away the streamer and replaced it with a 50GB SCSI...
...
> My guess is that the low voltage scsi-controller cannot handle the
> size of the HD - could that be??

No. I'm using 73GB drives on my C3000 w/no problem.
Something else is wrong related to the driver stack.
Ryan already asked the obvious question: which kernel version?

grant
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Hmm... 

I will try to duplicate this problem using disk array over the weekend
to see if this is a generic problem.

Thanks,

- Ryan

On Thu, 2004-04-15 at 16:32, Jens_Konrad/Linotype/DE@linotype.com wrote:
> Hi,
> 
>  
> 
> I just managed to get a screenshot:
> 
>  
> 
> (none):~# mkfs /dev/sde1
> mke2fs 1.27 (8-Mar-2002)
> Filesystem label=
> OS type: Linux
> Block size=4096 (log=2)
> Fragment size=4096 (log=2)
> 6111232 inodes, 12211708 blocks
> 610585 blocks (5.00%) reserved for the super user
> First data block=0
> 373 block groups
> 32768 blocks per group, 32768 fragments per group
> 16384 inodes per group
> Superblock backups stored on blocks:
>        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632,
> 2654208,
>        4096000, 7962624, 11239424
> 
> Writing inode tables:   0/373HHHHHHH  1/373HHHHHHH  2/373HHHHHHH
> 3/373HHHHHHH  4/373HHHHHHH  5/373HHHHHHH  6/373HHHHHHH  7/3
> Writing superblocks and filesystem accounting information: scsi1 (0:0)
> Target is suffering from tag starvation.
> SCSI disk error : host 1 channel 0 id 0 lun 0 return code = 8
> I/O error: dev 08:41, sector 34078720
> SCSI disk error : host 1 channel 0 id 0 lun 0 return code = 8
> I/O error: dev 08:41, sector 34078722
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 90 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 7c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 c4 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 ac 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 10 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 9c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 00 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 80 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 c4 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 ac 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 10 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 9c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 00 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 80 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 02 04 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 01 d0 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 01 fc 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 02 00 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 8c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 f4 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants device reset
>        0x2a 00 04 90 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants BUS reset, cmd 21e46e00
>        0x2a 00 04 90 00 28 00 00 08 00
> scsi1: Bus Reset detected, executing command 00000000, slot 00000000,
> dsp 001704a8[04a8]
> failing command because of reset, slot 21e88654, cmnd 21e46e00
> failing command because of reset, slot 21e88788, cmnd 21e47e00
> failing command because of reset, slot 21e888bc, cmnd 21e47800
> failing command because of reset, slot 21e889f0, cmnd 21e46200
> failing command because of reset, slot 21e88b24, cmnd 21e46000
> failing command because of reset, slot 21e88c58, cmnd 21e46400
> failing command because of reset, slot 21e88d8c, cmnd 21e46600
> failing command because of reset, slot 21e88ec0, cmnd 21e46a00
> failing command because of reset, slot 21e88ff4, cmnd 21e47c00
> failing command because of reset, slot 21e89128, cmnd 21e47a00
> failing command because of reset, slot 21e8925c, cmnd 21e47600
> failing command because of reset, slot 21e894c4, cmnd 21e47400
> failing command because of reset, slot 21e895f8, cmnd 21e47200
> failing command because of reset, slot 21e8972c, cmnd 21e47000
> 
> Stack Dump:
> 21e90740:  0004ff0e 00000000 21e90670 21e90650
> 21e90730:  00000000 10228630 00000000 21e90000
> 21e90720:  00000000 00000000 00000000 21e90000
> 21e90710:  00000001 00000002 21f36000 00000002
> 21e90700:  21f3c040 1006c000 103aa010 103aa010
> 21e906f0:  1032b010 1020e448 103cd000 00000001
> 
> Kernel addresses on the stack:
> [<10228630>]  [<1020e448>]  [<102248b8>]  [<1020e51c>]
> [<1020e808>]  [<1020e328>]  [<1020f3bc>]  [<1020f75c>]
> [<10108c4c>]  [<10108cf4>]  [<101375f4>]  [<10137a44>]
> [<10165c4c>]  [<1012307c>]  [<1020d3f0>]  [<10165ee0>]
> [<1020f608>]  [<1020d3f0>]  [<1020d600>]  [<101216f0>]
> 
> 
> Kernel Fault: Code=26 regs=21e90740 (Addr=00000048)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001110 Not tainted
> r00-03  00000000 103ebab8 10228630 21e8972c
> r04-07  21e46e00 1020de94 21f60400 00002000
> r08-11  000003e8 0000ffff 00002000 00001000
> r12-15  00001002 21f61ea0 000000fd f0100000
> r16-19  f0000fe0 f0000074 f000006c 00000080
> r20-23  00000000 21e889f0 10065860 00000000
> r24-27  00000000 00000000 21f60404 10316010
> r28-31  21f60404 10326c00 21e90740 1020e51c
> sr0-3   00000000 00000003 00000000 00000003
> sr4-7   00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 102286bc 102286c0
> IIR: 4a930090    ISR: 00000000  IOR: 00000048
> CPU:        0   CR30: 21e90000 CR31: 103d8000
> ORIG_R28: 00000000
> 
> 
> Jens Konrad
> 04/15/2004 11:57 PM
> 
> An: Jens Konrad/Linotype/DE
> Kopie: Jens_Konrad/Linotype/DE@linotype.com,
> parisc-linux@lists.parisc-linux.org, Ryan Bradetich
> <rbradetich@uswest.net>
> Blindkopie:
> Thema: Antwort: Re: [parisc-linux] Problem with SCSI in K-Class
> 
> 
> 
> 
> btw
> 
> 
> 
> this also happens when I format the device without a partition on it.
> I will try to get a screenshot.
> 
> Jens Konrad
> 04/15/2004 11:38 PM
> 
> An: Ryan Bradetich <rbradetich@uswest.net>
> Kopie: Jens_Konrad/Linotype/DE@linotype.com,
> parisc-linux@lists.parisc-linux.org
> Blindkopie:
> Thema: Antwort: Re: [parisc-linux] Problem with SCSI in K-Class
> 
> 
>   Hi,
> 
> 
> 
> it is 2.4.23-pa3, I downloaded the kernel from
> http://parisc-linux.org/~rbrad/vmlinux-2.4.23-pa3.bz2 because I needed
> a kernel supporting Mux. I have not yet built my own kernel, not sure
> if that might help.
> 
> 
> 
> Anyway, fdisk always told me that "Partition 1 does not end on
> cylinder boundary:". I then partitioned the drive using sector mode,
> and it worked, fdisk is now fine with the partition. But when I use
> mkfs.ext3 or even mkfs.ext2, it just comes to the writing of the
> superblock information, then it crashes. Kernel fault, code=26,
> regs=21e90740 (Addr=000000481) - if that helps, that is about all I
> can read.
> 
> 
> 
> The drive is a 50GB UW SCSI from Seagate, I use an adapter to connect
> it to the SCSI cable of the K-Class.
> 
> When I check /proc/scsi/scsi, the drive is absolutely okay, it is read
> perfectly. But the format is not done correctly, something is wrong
> with the superblock. When I try to mount /dev/sde1, I am told that the
> superblock could not be read.
> 
> Thanx for your help,
> 
> 
> 
> Jay
> 
> Ryan Bradetich <rbradetich@uswest.net>
> Gesendet von: parisc-linux-bounces@lists.parisc-linux.org
> 04/15/2004 01:32 PM CST
> 
> An: Jens_Konrad/Linotype/DE@linotype.com
> Kopie: parisc-linux@lists.parisc-linux.org
> Blindkopie:
> Thema: Re: [parisc-linux] Problem with SCSI in K-Class
> 
> 
> Which kernel?  I will see if I can duplicate on K460.
> 
> Thanks,
> 
> - Ryan
> 
> On Thu, 2004-04-15 at 13:04, Jens_Konrad/Linotype/DE@linotype.com
> wrote:
> > Hi guys,
> >
> > I got my K-Class 200 working in single kernel mode, it is booting
> from high voltage scsi - on the normal scsi I got a CD-Rom and a
> Streamer.
> >
> > Now I took away the streamer and replaced it with a 50GB SCSI and
> booted the machine. During boot he can see the HD without any problems
> (it is a Seagate), and I can also address it via fdisk (it is
> > sde).
> >
> > But when I try to partition it, it comes as far as writing
> superblocks - and then I get a stack dump and the kernel panics, the
> machine freezes - and that was it.
> >
> > My guess is that the low voltage scsi-controller cannot handle the
> size of the HD - could that be?? Anyone have an idea how I could get
> the disk to work?? I would really love to use it, since I wanted
> > to use the K-Class 200 as a file server.
> >
> > Yours,
> >
> > Jay
> >
> >
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 



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Helge Deller wrote:

> On Wednesday 14 April 2004 11:44, Ulrich Deiters wrote:
> 
>>I just wanted to install parisc-linux 3.0r2 on a HP C3000, 
>>using an external serial terminal. The installation went more 
>>or less smoothly, but the X server does not come up.
>>
>>The kdm log says "no screens found".
>>
>>I note that there is no X*screens file in /etc/kde2/kdm, but I do 
>>not know whether this is normal or not - this is my first Debian 
>>installation.
>>
>>What must I do to get my X server running? Or is it hopeless, 
>>because the HP graphics card (FX2) is not supported?
> 
> 
> FX2 is not supported, but since you install via serial terminal,
> you could still run a X Server on your local PC-machine (e.g. via Xnest)
> and display there what you would see on the PA-machine.
> 
That gave me the next idea:
Use Xvnc (the core of vnc from http://www.realvnc.com/) as the default Xserver. 
Then you have both a text console (the terminal or whatever) and a local display 
(be it that it is not hardware accelerated). Now you 'only' need a vncviewer at 
your desktop to use the graphical 'console'.

Be noted that the Xvnc fron DebianWoody crashes on my HP-D370...


CBee



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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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>>That said, thanks to viewcvs, cvs and some tbz I recover from my systems,
> I >reach to rebuild on my b2k at the office:
>>2.6.3-pa2 (runing simultaneoulsy 2 find on different linux tree, a
>> tar of one of those tree) survive :)
>>2.6.4-rc1-pa3 same test: survive (so no pb with ccio-dma changes) :)
>>but 2.6.4-rc4-pa6 died with same messages.
>
> Sorry a typo: read 2.6.4-rc3-pa6 in place of rc4 :(
>
> Joel
>
>

Joel,

2.6.6-rc1-pa0 shows the same behaviour, although it does seem to make it
through the Gentoo boot process most times. Typically, 'ls <TAB><TAB>' in
bash in a largeish directory will do the trick. The bash process ends up
in disk-wait, the WARN_ON gets logged. I can switch consoles and log in
but just about anything that goes to disk ends up in disk-wait too.

I've compiled 2.6.3-pa2 in the hope of getting the C180 up and stable.
Can't boot it until this evening because the machine's at home and
AUTOBOOT is OFF.

-Andy


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On Fri, Apr 16, 2004 at 01:00:01PM +0200, Corn? Beerse wrote:
> Be noted that the Xvnc fron DebianWoody crashes on my HP-D370...

Does the viewer from sid crash you box?
Any idea why it crashes?

c.



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Cc: Helge Deller <deller@gmx.de>, Ulrich Deiters <ukd@xenon.pc.Uni-Koeln.DE>,
	parisc-linux@lists.parisc-linux.org
To: Carlos O'Donell <carlos@baldric.uwo.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:21445

Carlos O'Donell wrote:

> On Fri, Apr 16, 2004 at 01:00:01PM +0200, Corn? Beerse wrote:
> 
>>Be noted that the Xvnc fron DebianWoody crashes on my HP-D370...
> 
> 
> Does the viewer from sid crash you box?

Since my D370 has no graphical display, the viewer will not work, i use the 
viewer on my desktop.

> Any idea why it crashes?

Not jet, not time to investigate, so many other things to do...

The idea to use Xvnc for the X11-server for display :0 just came since I did 
just that on a RedHatLinux server (hp DL380 ;) There it runs without a problem.

I think (well that will be my first step) is that the RedHatLinuxIntel box runs 
in runlevel 5, the graphical runlevel. The D370 is in its text-console runelvel. 
I think I need to force it in its graphical runlevel and convince the Xserver is 
properly configured, even without the hardware. For that I have to dive into 
Debian and its X11 configuration which (I have already seen) differs from 
RedHat, SuSE and HP-UX.

For what its worth, Xvnc can (for a start) just replace the other X11-server 
binary. Once that works (`vncviewer palinux:0` gives a login box), the call to 
Xvnc can be extended with some configuration like colordepth, resolution and 
security, see `Xvnc --help` for a list of options and the `vncserver` script for 
some other details.


CBee



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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] preliminary patches to speed up fork/exec
Date: 16 Apr 2004 11:59:11 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:21446

This is against 2.6.5-pa8 (there may be problems in 2.6.6-rc1 because of
the VM changes).

It's a very preliminary attempt to avoid our full cache flush on fork
penalties and implement a system to detect whether a particular page
needs flushing or not (aka stingy cache flushing).

I've stolen the FLUSH_PAGE bit for a combined I+D cache dirty bit (we're
out of bits, so, although I'd get better performance separating I and D
cache dirty, I can't do it without revamping our pte layout)...the flush
page bit is obsolete, since if we're ever clearing the pte of an
unflushed page, we've violated the VM principles (I've put a warn on
check in to look for this).

The patch doesn't do cutoff (i.e. if we have to flush a huge number of
pages, it would be better simply to flush the whole cache).

It could also be sped up by not flushing file backed pages on
flush_cache_mm unless we're the last mapper of the file.

WARNING: there's probably some missed flushing issues in this, so don't
trust critical data to it...

James

# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
#	           ChangeSet	1.1792  -> 1.1795 
#	         mm/fremap.c	1.16    -> 1.18   
#	include/asm-parisc/cache.h	1.6     -> 1.7    
#	include/asm-parisc/page.h	1.5     -> 1.7    
#	arch/parisc/kernel/entry.S	1.14    -> 1.17   
#	arch/parisc/kernel/cache.c	1.12    -> 1.14   
#	         mm/memory.c	1.154   -> 1.156  
#	include/asm-parisc/tlb.h	1.1     -> 1.2    
#	arch/parisc/kernel/sys_parisc.c	1.17    -> 1.18   
#	include/asm-parisc/pgtable.h	1.16    -> 1.17   
#	include/asm-parisc/cacheflush.h	1.9     -> 1.11   
#	arch/parisc/kernel/signal.c	1.14    -> 1.15   
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 04/04/14	jejb@raven.il.steeleye.com	1.1790.1.1
# ICI
# --------------------------------------------
# 04/04/14	jejb@raven.il.steeleye.com	1.1793
# hand
# --------------------------------------------
# 04/04/15	jejb@raven.il.steeleye.com	1.1794
# First draft of working stingy cache flushing
# --------------------------------------------
# 04/04/16	jejb@raven.il.steeleye.com	1.1795
# More clean ups
# --------------------------------------------
#
diff -Nru a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
--- a/arch/parisc/kernel/cache.c	Fri Apr 16 11:50:51 2004
+++ b/arch/parisc/kernel/cache.c	Fri Apr 16 11:50:51 2004
@@ -230,6 +230,7 @@
 void __flush_dcache_page(struct page *page)
 {
 	struct list_head *l;
+	pte_t *pte;
 
 	flush_kernel_dcache_page(page_address(page));
 
@@ -260,9 +261,10 @@
 		 * have to find a congruent address with an existing
 		 * translation */
 
-		if (!translation_exists(mpnt, addr))
+		if (!(pte = translation_exists(mpnt, addr)))
 			continue;
 
+		pte_clear_flush(pte);
 		__flush_cache_page(mpnt, addr);
 
 		/* If we find an address to flush, that will also
@@ -293,15 +295,205 @@
 		/* This is just for speed.  If the page translation isn't
 		 * there there's no point exciting the nadtlb handler into
 		 * a nullification frenzy */
-		if(!translation_exists(mpnt, addr))
+		if(!(pte = translation_exists(mpnt, addr)))
 			continue;
 
+		pte_clear_flush(pte);
 		__flush_cache_page(mpnt, addr);
 
 		return;
 	}
 }
 EXPORT_SYMBOL(__flush_dcache_page);
+
+/* set to max pages to flush before a full flush.  Zero means no limit */
+#define MAX_FLUSH_PAGES 0
+#undef	DEBUG_PAGE_FLUSHING
+
+#ifdef DEBUG_PAGE_FLUSHING
+#define DBG(a...)	printk(a)
+#else
+#define DBG(...)
+#endif
+
+#if (MAX_FLUSH_PAGES != 0)
+
+/* we get to use the bottom 12 bits of the addr for flags since the
+ * address must be page aligned */
+#define ICACHE_FLUSH_FLAG	0x1
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long count = 0, actual_count = 0;
+	unsigned long sr3 = mfsp(3), cr25 = mfctl(25);
+	unsigned long *pages;
+
+	preempt_disable();
+	if(mm != current->active_mm) {
+		DBG("flush_tlb_mm: current MM is not active ");
+		/* FIXME: awful hack: move the process the mm belongs
+		 * to temporarily to being the active one.  This only
+		 * works because we can never get back into user
+		 * context from here. */
+		mtctl(__pa(mm->pgd), 25);
+		mtsp(mm->context, 3);
+	}
+
+	pages = kmalloc(MAX_FLUSH_PAGES * sizeof(unsigned long), GFP_ATOMIC);
+	if(!pages) {
+		printk(KERN_ERR "flush_tlb_mm: allocation failed: full flush\n");
+		goto full_flush;
+	}
+
+	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+		unsigned long start;
+
+		pmd_t *pmd;
+		pgd_t *pgd;
+		pte_t *pte;
+
+		count += (vma->vm_end - vma->vm_start)/PAGE_SIZE;
+
+		for (start = vma->vm_start; start < vma->vm_end;
+		     start += PAGE_SIZE) {
+			pgd = pgd_offset(mm, start);
+
+			if (pgd_none(*pgd)) {
+				start = (start & PGDIR_MASK) + PGDIR_SIZE - PAGE_SIZE;
+				continue;
+			}
+
+			pmd = pmd_offset(pgd, start);
+			if (pmd_none(*pmd)) {
+				start = (start & PMD_MASK) + PMD_SIZE - PAGE_SIZE;
+				continue;
+			}
+			pte = pte_offset_map(pmd, start);
+			if(pte_val(*pte)==0 || !pte_present(*pte))
+				continue;
+
+			/* FIXME: Here we could also skip over any
+			 * shared mapping page (i.e. equivalently
+			 * aliased) with at least one other user */
+			
+			pages[actual_count] = start;
+		 
+			if (vma->vm_flags & VM_EXEC)
+				pages[actual_count] |= ICACHE_FLUSH_FLAG;
+			if(++actual_count >= MAX_FLUSH_PAGES)
+				goto full_flush_free;
+
+		}
+	}
+			
+	DBG("FLUSHED %lu (actual %lu)\n", count, actual_count);
+	for(count = 0; count < actual_count; count++) {
+		unsigned long addr = pages[count] & PAGE_MASK;
+		flush_user_dcache_page(addr);
+		if(pages[count] & ICACHE_FLUSH_FLAG) {
+			flush_user_icache_page(addr);
+			pitlb_user(addr);
+		}
+		pdtlb_user(addr);
+	}
+ out_free:
+	kfree(pages);
+ out:
+	mtsp(sr3, 3);
+	mtctl(cr25, 25);
+	preempt_enable();
+	return;
+
+ full_flush_free:
+	DBG("flush_cache_mm: over max pages %ld (count %ld), flushing everything\n", actual_count, count);
+	flush_cache_all();
+	goto out_free;
+
+ full_flush:
+	flush_cache_all();
+	goto out;
+}
+
+#else
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long count = 0, actual_count = 0;
+	unsigned long sr3 = mfsp(3), cr25 = mfctl(25);
+#if 1
+	static int flushed = 0;
+
+	if(unlikely(!flushed)) {
+		printk("flush_cache_mm: INIT FLUSH ALL\n");
+		flushed = 1;
+		flush_cache_all();
+		return;
+	}
+#endif
+	preempt_disable();
+	if(mm != current->active_mm) {
+		DBG("flush_tlb_mm: current MM is not active ");
+		/* FIXME: awful hack: move the process the mm belongs
+		 * to temporarily to being the active one.  This only
+		 * works because we can never get back into user
+		 * context from here. */
+		mtctl(__pa(mm->pgd), 25);
+		mtsp(mm->context, 3);
+	}
+
+	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+		unsigned long start;
+
+		pmd_t *pmd;
+		pgd_t *pgd;
+		pte_t *pte;
+
+		count += (vma->vm_end - vma->vm_start)/PAGE_SIZE;
+
+		for (start = vma->vm_start; start < vma->vm_end;
+		     start += PAGE_SIZE) {
+			pgd = pgd_offset(mm, start);
+
+			if (pgd_none(*pgd)) {
+				start = (start & PGDIR_MASK) + PGDIR_SIZE - PAGE_SIZE;
+				continue;
+			}
+
+			pmd = pmd_offset(pgd, start);
+			if (pmd_none(*pmd)) {
+				start = (start & PMD_MASK) + PMD_SIZE - PAGE_SIZE;
+				continue;
+			}
+			pte = pte_offset_map(pmd, start);
+			if(pte_val(*pte)==0 || !pte_present(*pte))
+				continue;
+
+			if(!pte_flush(*pte))
+				continue;
+
+			/* FIXME: Here we could also skip over any
+			 * shared mapping page (i.e. equivalently
+			 * aliased) with at least one other user */
+			pte_clear_flush(pte);
+			flush_user_dcache_page(start);
+			if (vma->vm_flags & VM_EXEC) {
+				flush_user_icache_page(start);
+				pitlb_user(start);
+			}
+			pdtlb_user(start);
+			actual_count++;
+		}
+	}
+	mtsp(sr3, 3);
+	mtctl(cr25, 25);
+	preempt_enable();
+	DBG("FLUSHED %lu (actual %lu)\n", count, actual_count);
+}
+#endif
+
+EXPORT_SYMBOL(flush_cache_mm);
 
 /* Defined in arch/parisc/kernel/pacache.S */
 EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
diff -Nru a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
--- a/arch/parisc/kernel/entry.S	Fri Apr 16 11:50:51 2004
+++ b/arch/parisc/kernel/entry.S	Fri Apr 16 11:50:51 2004
@@ -49,7 +49,6 @@
 	.level 2.0
 #endif
 
-	.import         pa_dbit_lock,data
 
 	/* space_to_prot macro creates a prot id from a space id */
 
@@ -1017,6 +1016,10 @@
 	or		t1,pte,t0	/* t0 has R bit set */
 	and,*<>         t1,pte,%r0      /* test and nullify if already set */
 	std             t0,0(ptp)       /* write back pte */
+	ldi		_PAGE_FLUSH,t1
+	or		t1,t0,t0
+	and,*<>		t1,pte,%r0
+	std		t0,0(ptp)
 
 	space_to_prot   spc prot        /* create prot id from space */
 	depd            pte,8,7,prot    /* add in prot bits from pte */
@@ -1093,7 +1096,7 @@
 	shladd           t0,3,ptp,ptp
 	ldi		_PAGE_ACCESSED,t1
 	ldd              0(ptp),pte
-	bb,>=,n          pte,_PAGE_PRESENT_BIT,nadtlb_check_flush_20w
+	bb,>=,n          pte,_PAGE_PRESENT_BIT,nadtlb_emulate
 
 	space_to_prot   spc prot        /* create prot id from space */
 	depd            pte,8,7,prot    /* add in prot bits from pte */
@@ -1112,23 +1115,6 @@
 	rfir
 	nop
 
-nadtlb_check_flush_20w:
-	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
-
-	/* Insert a "flush only" translation */
-
-	depdi,z         7,7,3,prot
-	depdi           1,10,1,prot
-
-	/* Get rid of prot bits and convert to page addr for idtlbt */
-
-	depdi		0,63,12,pte
-	extrd,u         pte,56,52,pte
-	idtlbt          pte,prot
-
-	rfir
-	nop
-
 #else
 
 dtlb_miss_11:
@@ -1514,6 +1500,10 @@
 	or		t1,pte,t0	/* t0 has R bit set */
 	and,*<>         t1,pte,%r0      /* test and nullify if already set */
 	std             t0,0(ptp)       /* write back pte */
+	ldi		_PAGE_FLUSH,t1
+	or		t1,t0,t0
+	and,*<>		t1,pte,%r0
+	std		t0,0(ptp)
 
 	space_to_prot   spc prot        /* create prot id from space */
 	depd            pte,8,7,prot    /* add in prot bits from pte */
diff -Nru a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
--- a/arch/parisc/kernel/signal.c	Fri Apr 16 11:50:51 2004
+++ b/arch/parisc/kernel/signal.c	Fri Apr 16 11:50:51 2004
@@ -375,10 +375,9 @@
 	}
 #endif
 
-	flush_user_dcache_range((unsigned long) &frame->tramp[0],
-			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
-	flush_user_icache_range((unsigned long) &frame->tramp[0],
-			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
+	__flush_cache_range(current->active_mm,
+			    (unsigned long) &frame->tramp[0],
+			    (unsigned long) &frame->tramp[TRAMP_SIZE]);
 
 	/* TRAMP Words 0-4, Lenght 5 = SIGRESTARTBLOCK_TRAMP
 	 * TRAMP Words 5-9, Length 4 = SIGRETURN_TRAMP
diff -Nru a/include/asm-parisc/cache.h b/include/asm-parisc/cache.h
--- a/include/asm-parisc/cache.h	Fri Apr 16 11:50:51 2004
+++ b/include/asm-parisc/cache.h	Fri Apr 16 11:50:51 2004
@@ -63,9 +63,11 @@
 extern int icache_stride;
 extern struct pdc_cache_info cache_info;
 
-#define pdtlb(addr)         asm volatile("pdtlb 0(%%sr1,%0)" : : "r" (addr));
-#define pitlb(addr)         asm volatile("pitlb 0(%%sr1,%0)" : : "r" (addr));
-#define pdtlb_kernel(addr)  asm volatile("pdtlb 0(%0)" : : "r" (addr));
+#define pdtlb(addr)         asm volatile("pdtlb 0(%%sr1,%0)" : : "r" (addr))
+#define pitlb(addr)         asm volatile("pitlb 0(%%sr1,%0)" : : "r" (addr))
+#define pdtlb_kernel(addr)  asm volatile("pdtlb 0(%0)" : : "r" (addr))
+#define pdtlb_user(addr)    asm volatile("pdtlb 0(%%sr3,%0)" : : "r" (addr))
+#define pitlb_user(addr)    asm volatile("pitlb 0(%%sr3,%0)" : : "r" (addr))
 
 #endif /* ! __ASSEMBLY__ */
 
diff -Nru a/include/asm-parisc/cacheflush.h b/include/asm-parisc/cacheflush.h
--- a/include/asm-parisc/cacheflush.h	Fri Apr 16 11:50:51 2004
+++ b/include/asm-parisc/cacheflush.h	Fri Apr 16 11:50:51 2004
@@ -9,11 +9,7 @@
 
 /* Cache flush operations */
 
-#ifdef CONFIG_SMP
-#define flush_cache_mm(mm) flush_cache_all()
-#else
-#define flush_cache_mm(mm) flush_cache_all_local()
-#endif
+extern void flush_cache_mm(struct mm_struct *);
 
 #define flush_kernel_dcache_range(start,size) \
 	flush_kernel_dcache_range_asm((start), (start)+(size));
@@ -33,50 +29,6 @@
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
 
-/* The following value needs to be tuned and probably scaled with the
- * cache size.
- */
-
-#define FLUSH_THRESHOLD 0x80000
-
-static inline void
-flush_user_dcache_range(unsigned long start, unsigned long end)
-{
-#ifdef CONFIG_SMP
-	flush_user_dcache_range_asm(start,end);
-#else
-	if ((end - start) < FLUSH_THRESHOLD)
-		flush_user_dcache_range_asm(start,end);
-	else
-		flush_data_cache();
-#endif
-}
-
-static inline void
-flush_user_icache_range(unsigned long start, unsigned long end)
-{
-#ifdef CONFIG_SMP
-	flush_user_icache_range_asm(start,end);
-#else
-	if ((end - start) < FLUSH_THRESHOLD)
-		flush_user_icache_range_asm(start,end);
-	else
-		flush_instruction_cache();
-#endif
-}
-
-extern void __flush_dcache_page(struct page *page);
-
-static inline void flush_dcache_page(struct page *page)
-{
-	if (page->mapping && list_empty(&page->mapping->i_mmap) &&
-			list_empty(&page->mapping->i_mmap_shared)) {
-		set_bit(PG_dcache_dirty, &page->flags);
-	} else {
-		__flush_dcache_page(page);
-	}
-}
-
 #define flush_icache_page(vma,page)	do { flush_kernel_dcache_page(page_address(page)); flush_kernel_icache_page(page_address(page)); } while (0)
 
 #define flush_icache_range(s,e)		do { flush_kernel_dcache_range_asm(s,e); flush_kernel_icache_range_asm(s,e); } while (0)
@@ -88,31 +40,12 @@
 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
 	memcpy(dst, src, len)
 
-static inline void flush_cache_range(struct vm_area_struct *vma,
-		unsigned long start, unsigned long end)
-{
-	int sr3;
-
-	if (!vma->vm_mm->context) {
-		BUG();
-		return;
-	}
-
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
-	} else {
-		flush_cache_all();
-	}
-}
-
 /* Simple function to work out if we have an existing address translation
  * for a user space vma. */
-static inline int translation_exists(struct vm_area_struct *vma,
-				     unsigned long addr)
+static inline pte_t *__translation_exists(struct mm_struct *mm,
+					  unsigned long addr)
 {
-	pgd_t *pgd = pgd_offset(vma->vm_mm, addr);
+	pgd_t *pgd = pgd_offset(mm, addr);
 	pmd_t *pmd;
 	pte_t *pte;
 
@@ -121,16 +54,17 @@
 
 	pmd = pmd_offset(pgd, addr);
 	if(pmd_none(*pmd) || pmd_bad(*pmd))
-		return 0;
+		return NULL;
 
 	pte = pte_offset_map(pmd, addr);
 
 	/* The PA flush mappings show up as pte_none, but they're
 	 * valid none the less */
 	if(pte_none(*pte) && ((pte_val(*pte) & _PAGE_FLUSH) == 0))
-		return 0;
-	return 1;
+		return NULL;
+	return pte;
 }
+#define translation_exists(vma, addr)	__translation_exists((vma)->vm_mm, addr)
 

 /* Private function to flush a page from the cache of a non-current
@@ -157,8 +91,11 @@
 	mtsp(vma->vm_mm->context, 3);
 
 	flush_user_dcache_page(vmaddr);
-	if(vma->vm_flags & VM_EXEC)
+	if(vma->vm_flags & VM_EXEC) {
 		flush_user_icache_page(vmaddr);
+		pitlb_user(vmaddr);
+	}
+	pdtlb_user(vmaddr);
 
 	/* put the old current process back */
 	mtsp(space, 3);
@@ -171,8 +108,11 @@
 {
 	if (likely(vma->vm_mm->context == mfsp(3))) {
 		flush_user_dcache_page(vmaddr);
-		if (vma->vm_flags & VM_EXEC)
+		if (vma->vm_flags & VM_EXEC) {
 			flush_user_icache_page(vmaddr);
+			pitlb_user(vmaddr);
+		}
+		pdtlb_user(vmaddr);
 	} else {
 		flush_user_cache_page_non_current(vma, vmaddr);
 	}
@@ -181,11 +121,94 @@
 static inline void
 flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
 {
+	pte_t *pte = translation_exists(vma, vmaddr);
+
 	BUG_ON(!vma->vm_mm->context);
 
-	if(likely(translation_exists(vma, vmaddr)))
+	if(likely(pte && !pte_flush(*pte))) {
+		pte_clear_flush(pte);
 		__flush_cache_page(vma, vmaddr);
+	}
+
+}
+
+/* The following value needs to be tuned and probably scaled with the
+ * cache size.
+ */
+
+#define FLUSH_THRESHOLD 0x80000
+
+static inline void
+__flush_cache_range(struct mm_struct *mm, unsigned long start,
+		    unsigned long end)
+{
+	unsigned long vaddr;
+	pte_t *pte;
+
+	/* small range, don't bother to flush the whole page (and
+	 * thus don't mark the page as flushed */
+	if (likely(end - start < PAGE_SIZE)) {
+		flush_user_dcache_range_asm(start,end);
+		flush_user_icache_range_asm(start,end);
+		return;
+	}
+
+	for (vaddr = start & PAGE_MASK; vaddr < end; vaddr += PAGE_SIZE) {
+		if(unlikely(!(pte = __translation_exists(mm, vaddr))))
+			continue;
+
+		if (unlikely(!pte_flush(*pte)))
+			continue;
+
+		pte_clear_flush(pte);
+		flush_user_dcache_page(vaddr);
+		flush_user_icache_page(vaddr);
+		pdtlb_user(vaddr);
+		pitlb_user(vaddr);
+	}
+}
 
+static inline void flush_cache_range(struct vm_area_struct *vma,
+				     unsigned long start, unsigned long end)
+{
+	unsigned long sr3 = mfsp(3);
+
+	BUG_ON(!vma->vm_mm->context);
+
+	if (likely(vma->vm_mm->context == sr3)) {
+		__flush_cache_range(vma->vm_mm, start, end);
+	} else {
+		unsigned long pgd = mfctl(25);
+		/* we don't mind taking interrups since they may not
+		 * do anything with user space, but we can't
+		 * be preempted here */
+		preempt_disable();
+
+		/* make us current */
+		mtctl(__pa(vma->vm_mm->pgd), 25);
+		mtsp(vma->vm_mm->context, 3);
+
+		__flush_cache_range(vma->vm_mm, start, end);
+
+		/* put the old current process back */
+		mtsp(sr3, 3);
+		mtctl(pgd, 25);
+		preempt_enable();
+
+	}
 }
+
+extern void __flush_dcache_page(struct page *page);
+
+static inline void flush_dcache_page(struct page *page)
+{
+	if (page->mapping && list_empty(&page->mapping->i_mmap) &&
+			list_empty(&page->mapping->i_mmap_shared)) {
+		set_bit(PG_dcache_dirty, &page->flags);
+	} else {
+		__flush_dcache_page(page);
+	}
+}
+
 #endif
 
diff -Nru a/include/asm-parisc/pgtable.h b/include/asm-parisc/pgtable.h
--- a/include/asm-parisc/pgtable.h	Fri Apr 16 11:50:51 2004
+++ b/include/asm-parisc/pgtable.h	Fri Apr 16 11:50:51 2004
@@ -29,15 +29,6 @@
  */
 #define kern_addr_valid(addr)	(1)
 
-/* Certain architectures need to do special things when PTEs
- * within a page table are directly modified.  Thus, the following
- * hook is made available.
- */
-#define set_pte(pteptr, pteval)                                 \
-        do{                                                     \
-                *(pteptr) = (pteval);                           \
-        } while(0)
-
 #endif /* !__ASSEMBLY__ */
 
 #define pte_ERROR(e) \
@@ -213,6 +204,15 @@
 #define __S110  PAGE_RWX
 #define __S111  PAGE_RWX
 
+/* Certain architectures need to do special things when PTEs
+ * within a page table are directly modified.  Thus, the following
+ * hook is made available.
+ */
+static inline void set_pte(pte_t *pteptr, pte_t pteval)
+{
+	*pteptr = pteval;
+}
+
 extern pgd_t swapper_pg_dir[]; /* declared in init_task.c */
 
 /* initial page tables for 0-8MB for kernel */
@@ -230,17 +230,16 @@
 
 #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
 
-#define pte_none(x)     ((pte_val(x) == 0) || (pte_val(x) & _PAGE_FLUSH))
+#define pte_none(x)     ((pte_val(x) == 0))
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
-#define pte_clear(xp)	do { pte_val(*(xp)) = 0; } while (0)
+#define pte_clear_flush(xp)	do { pte_val(*(xp)) &= ~ _PAGE_FLUSH; } while(0)
+#define pte_flush(x)	(pte_val(x) & _PAGE_FLUSH)
 
 #define pmd_none(x)	(!pmd_val(x))
 #define pmd_bad(x)	((pmd_val(x) & ~PAGE_MASK) != _PAGE_TABLE)
 #define pmd_present(x)	(pmd_val(x) & _PAGE_PRESENT)
 #define pmd_clear(xp)	do { pmd_val(*(xp)) = 0; } while (0)
 
-
-
 #ifdef __LP64__
 #define pgd_page(pgd) ((unsigned long) __va(pgd_val(pgd) & PAGE_MASK))
 
@@ -282,6 +281,13 @@
 extern inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
 extern inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) |= _PAGE_WRITE; return pte; }
 
+static inline void pte_clear(pte_t *xp) {
+	WARN_ON(pte_flush(*xp) && pte_user(*xp));
+	pte_val(*xp) = 0;
+}
+
+
+
 /*
  * Conversion functions: convert a page and protection to a page entry,
  * and a page entry and page directory to the page they refer to.
@@ -402,23 +408,12 @@
 #endif
 }
 
-#ifdef CONFIG_SMP
-extern spinlock_t pa_dbit_lock;
-#else
-static int pa_dbit_lock; /* dummy to keep the compilers happy */
-#endif
-
 static inline pte_t ptep_get_and_clear(pte_t *ptep)
 {
 	pte_t old_pte;
-	pte_t pte;
 
-	spin_lock(&pa_dbit_lock);
-	pte = old_pte = *ptep;
-	pte_val(pte) &= ~_PAGE_PRESENT;
-	pte_val(pte) |= _PAGE_FLUSH;
-	set_pte(ptep,pte);
-	spin_unlock(&pa_dbit_lock);
+	old_pte = *ptep;
+	pte_clear(ptep);
 
 	return old_pte;
 }
diff -Nru a/include/asm-parisc/tlb.h b/include/asm-parisc/tlb.h
--- a/include/asm-parisc/tlb.h	Fri Apr 16 11:50:51 2004
+++ b/include/asm-parisc/tlb.h	Fri Apr 16 11:50:51 2004
@@ -7,7 +7,7 @@
 } while (0)
 
 #define tlb_start_vma(tlb, vma) \
-do {	if (!(tlb)->fullmm)	\
+do {	\
 		flush_cache_range(vma, vma->vm_start, vma->vm_end); \
 } while (0)
 
diff -Nru a/mm/memory.c b/mm/memory.c
--- a/mm/memory.c	Fri Apr 16 11:50:51 2004
+++ b/mm/memory.c	Fri Apr 16 11:50:51 2004
@@ -1035,11 +1035,13 @@
 		int reuse = can_share_swap_page(old_page);
 		unlock_page(old_page);
 		if (reuse) {
-			flush_cache_page(vma, address);
+			//flush_cache_page(vma, address);
+			flush_dcache_page(old_page);
 			entry = maybe_mkwrite(pte_mkyoung(pte_mkdirty(pte)),
 					      vma);
 			ptep_establish(vma, address, page_table, entry);
 			update_mmu_cache(vma, address, entry);
+			//flush_kernel_dcache_page(page_address(pte_page(entry)));
 			pte_unmap(page_table);
 			spin_unlock(&mm->page_table_lock);
 			return VM_FAULT_MINOR;



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On Fri, 2004-04-16 at 11:59, James Bottomley wrote:
> This is against 2.6.5-pa8 (there may be problems in 2.6.6-rc1 because of
> the VM changes).

The patch actually only works on a 64 bit kernel, currently, too.

James




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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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Hello Andy,

Sorry for delay but I was a bit busy by a production server.

Andy Walker wrote:
>>>That said, thanks to viewcvs, cvs and some tbz I recover from my systems,
>>
>>I >reach to rebuild on my b2k at the office:
>>
>>>2.6.3-pa2 (runing simultaneoulsy 2 find on different linux tree, a
>>>tar of one of those tree) survive :)
>>>2.6.4-rc1-pa3 same test: survive (so no pb with ccio-dma changes) :)
>>>but 2.6.4-rc4-pa6 died with same messages.
>>
>>Sorry a typo: read 2.6.4-rc3-pa6 in place of rc4 :(
>>
>>Joel
>>
>>
> 
> 
> Joel,
> 
> 2.6.6-rc1-pa0 shows the same behaviour,

Thanks.
but not a surprise regarding previous test.

> although it does seem to make it
> through the Gentoo boot process most times.

I would not be surprise if it occures during some fsck. Do you also use ext3 on your Gentoo?
btw Gentoo always install pkg by a local rebuild from src (that's a long time that I visit the site)?

> Typically, 'ls <TAB><TAB>' in
> bash in a largeish directory will do the trick. The bash process ends up
> in disk-wait, the WARN_ON gets logged. I can switch consoles and log in
> but just about anything that goes to disk ends up in disk-wait too.
> 
I will try this also.

> I've compiled 2.6.3-pa2 in the hope of getting the C180 up and stable.

This seems to be the last one enough stable for me and my c110: I just updated my distro (that used a lot tar iirc) and all works 
fine with this kernel.

> Can't boot it until this evening because the machine's at home and
> AUTOBOOT is OFF.
> 
No pb.

Thanks for your feedback ;)

Joel


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Hi all,

This eveing p-l.org is unreachable for me?
Am I alone?

Thanks for feedback,
	Joel


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> This eveing p-l.org is unreachable for me?
> Am I alone?

works for me. -randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] Re: parisc-linux.org unreachable?
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Xref: news.gmane.org gmane.linux.ports.parisc:21451

Ok so it must be dns pb near my ISP.

Thanks,
Joel


Randolph Chung wrote:
>>This eveing p-l.org is unreachable for me?
>>Am I alone?
> 
> 
> works for me. -randolph


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From: "Andy Walker" <ajwalker@broadpark.no>
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Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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> Hello Andy,
>
> Sorry for delay but I was a bit busy by a production server.

No problem.

>> 2.6.6-rc1-pa0 shows the same behaviour,
>
> Thanks.
> but not a surprise regarding previous test.
>
>> although it does seem to make it
>> through the Gentoo boot process most times.
>
> I would not be surprise if it occures during some fsck. Do you also use
> ext3 on your Gentoo?
> btw Gentoo always install pkg by a local rebuild from src (that's a long
> time that I visit the site)?

That's the Gentoo way - so every package on my system is compiled
-march=2.0 -mschedule=8000. The downside is that install and upgrade
takes a long time on slow machines. The upside is that you get total
control over package selection and compilation options. I've played
with Debian before but I find apt a pain compared to Gentoo's portage.
Also all this sid/woody/stable/unstable etc.... stuff confuses me.

>> I've compiled 2.6.3-pa2 in the hope of getting the C180 up and stable.
>
> This seems to be the last one enough stable for me and my c110: I just
> updated my distro (that used a lot tar iirc) and all works
> fine with this kernel.

2.6.3-pa2 is rock solid. I've been running updates, kernel compilation -
pretty heavy stuff, and no problems.
I'm just about to 'emerge' X11 - that should keep it downloading,
untarring and compiling for 24 hours.

Any suggestions for things I might test to narrow our problem down.

cheers,
-Andy


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Subject: [parisc-linux] Re: parisc-linux.org unreachable?
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To: Joel Soete <soete.joel@tiscali.be>
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Xref: news.gmane.org gmane.linux.ports.parisc:21453

hmm much more a routing pb:

  # traceroute www.parisc-linux.org
traceroute to www.parisc-linux.org (192.25.206.7), 64 hops max, 40 byte packets
  1  * * *
  2  10.10.10.41 (10.10.10.41)  47 ms  47 ms  40 ms
  3  ge-3-2.gsr-02.bru.net.tiscali.be (62.235.3.214)  40 ms  39 ms  53 ms
  4  ge-5-2-0-1.bru10.ip.tiscali.net (213.200.69.9)  40 ms  39 ms  40 ms
  5  so-1-0-0.sjc10.ip.tiscali.net (213.200.82.233)  190 ms  190 ms  185 ms
  6  qwest-ic.ip.tiscali.net (213.200.66.234)  193 ms  189 ms  186 ms
  7  * * *
  8  * * *
  9  * * *
10  * * *
11  * * *
12  * * *
13  * * *
14  * * *
15  * * *
16  * *
17  * * *

Joel

Joel Soete wrote:
> Ok so it must be dns pb near my ISP.
> 
> Thanks,
> Joel
> 
> 
> Randolph Chung wrote:
> 
>>> This eveing p-l.org is unreachable for me?
>>> Am I alone?
>>
>>
>>
>> works for me. -randolph
> 
> 


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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
Date: Sat, 17 Apr 2004 21:32:48 +0000
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Andy Walker wrote:
>>Hello Andy,
>>
>>Sorry for delay but I was a bit busy by a production server.
> 
> 
> No problem.
> 
> 
>>>2.6.6-rc1-pa0 shows the same behaviour,
>>
>>Thanks.
>>but not a surprise regarding previous test.
>>
>>
>>>although it does seem to make it
>>>through the Gentoo boot process most times.
>>
>>I would not be surprise if it occures during some fsck. Do you also use
>>ext3 on your Gentoo?
>>btw Gentoo always install pkg by a local rebuild from src (that's a long
>>time that I visit the site)?
> 
> 
> That's the Gentoo way - so every package on my system is compiled
> -march=2.0 -mschedule=8000. The downside is that install and upgrade
> takes a long time on slow machines.

Yes that why I do not investegate more: I don't have a lot of budget for my system which are generaly systems a bit outdated 
machine recover from trash still just enough for my investigation but a bit too slow to build all the tools I would like to 
maintained uptodate frequently. The very great stuff would have to have the choice: update from pre-compiled binaries or a local 
compile. The debian packaging system is very robust (some month ago, on a i386, I do an update from a old woody (r0 iirc) directly 
to unstable aka sid without any pb) but I do not yet find a clear doc explaining me how to personalize pkg from dpkg src (I would 
like for instance change the prefix in general /usr into /opt/app/app_rev a la hp)?

> The upside is that you get total
> control over package selection and compilation options. I've played
> with Debian before but I find apt a pain compared to Gentoo's portage.
> Also all this sid/woody/stable/unstable etc.... stuff confuses me.
> 
That is the simple aspect: in short
     the current stable release was named (the 2.x was potato, the current one woody)
     the very last packages otc are put in unstable (aka sid) for large testing and debuging
     when pkg become enough stable it is pushed in testing the futur debian release (recently named sarge)

there are also security update for stable release only because there are in general in unstable and testing before!

For my part I only have ineterest in very last available packages (so sid or unstable) to test new features but some times (rarely 
in fact) the system is a bit 'unstable' :) (that's my choice).

> 
>>>I've compiled 2.6.3-pa2 in the hope of getting the C180 up and stable.
>>
>>This seems to be the last one enough stable for me and my c110: I just
>>updated my distro (that used a lot tar iirc) and all works
>>fine with this kernel.
> 
> 
> 2.6.3-pa2 is rock solid. I've been running updates, kernel compilation -
> pretty heavy stuff, and no problems.
> I'm just about to 'emerge' X11 - that should keep it downloading,
> untarring and compiling for 24 hours.
>
Ok

> Any suggestions for things I might test to narrow our problem down.
> 
Not realy for the moment, as explain previously, the problem seems to apear between 2.6.4-rc1-pa3 and 2.6.4-rc3-pa6.
I will try to figure out now if it comes from upstream or from or tree: I am on going to rebuild 2.6.4-rc3-pa1 and see how will it 
behave.

Thanks a lot,
	Joel


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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] kernel>=2.6.4-rc3 hung or panic on C1[18]0 [was:
 2.6.5-rc2-pa2 boot panic on c110 :(]
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To: Joel Soete <soete.joel@tiscali.be>
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Xref: news.gmane.org gmane.linux.ports.parisc:21455

Hi all,

To summarise I do following test with different kernel to locate this pb:
launch severall find into local big tree (different release of kernel tree) in the same time of a tar of one of those tree.

with kernel 2.6.3-pa2 no pb
with 2.6.4-rc1-pa3 no pb (apparently)
with 2.6.4-rc3-pa6 system crash (as well as with 2.6.4-rc3-pa1)

with the last one (2.6.4-rc3-pa1) I also log:
attempt to access beyond end of device
sdb9: rw=0, want=2307486096, limit=3075696
attempt to access beyond end of device
sdb9: rw=0, want=2842788104, limit=3075696
attempt to access beyond end of device
sdb9: rw=0, want=1904280008, limit=3075696
attempt to access beyond end of device
sdb9: rw=0, want=2298589592, limit=3075696
attempt to access beyond end of device
sdb9: rw=0, want=26325376, limit=3075696
attempt to access beyond end of device
sdb9: rw=0, want=1371126224, limit=3075696
attempt to access beyond end of device
sdb9: rw=0, want=3277938880, limit=3075696
attempt to access beyond end of device
sdb9: rw=0, want=122917000, limit=3075696
attempt to access beyond end of device
sdb9: rw=0, want=1151862976, limit=3075696
attempt to access beyond end of device
sdb9: rw=0, want=3236466824, limit=3075696
attempt to access beyond end of device
sdb9: rw=0, want=3253102776, limit=3075696

during the first find alone?
arq->state 2
Badness in as_requeue_request at drivers/block/as-iosched.c:1479
Kernel addresses on the stack:
  [<10125de8>] printk+0x188/0x1c8
  [<10105938>] dump_stack+0x18/0x24
  [<102294fc>] as_requeue_request+0x64/0x10c
  [<10220468>] elv_requeue_request+0x2c/0x38
  [<1022313c>] blk_insert_request+0xfc/0x104
  [<1024cbb0>] scsi_queue_insert+0x68/0x9c
  [<1024915c>] scsi_finish_command+0x9c/0xc0
  [<10249068>] scsi_softirq+0xfc/0x11c
  [<10262fb4>] ncr53c8xx_intr+0x74/0xbc
  [<101299cc>] do_softirq+0xf4/0xf8
  [<10220468>] elv_requeue_request+0x2c/0x38
  [<10107270>] do_cpu_irq_mask+0xfc/0x10c
  [<10220468>] elv_requeue_request+0x2c/0x38
  [<1010b068>] intr_return+0x0/0x14
  [<1024cbb0>] scsi_queue_insert+0x68/0x9c
  [<1010b070>] intr_return+0x8/0x14
  [<1016ba8c>] may_open+0x58/0x1c8
  [<1015a850>] dentry_open+0x138/0x1c4
  [<1016e784>] locate_fd+0x158/0x194
  [<1010b068>] intr_return+0x0/0x14

kernel BUG at include/linux/blkdev.h:543!
Kernel addresses on the stack:
  [<10125de8>] printk+0x188/0x1c8
  [<10105938>] dump_stack+0x18/0x24
  [<1024ddc8>] scsi_request_fn+0x2a0/0x2c4
  [<10220468>] elv_requeue_request+0x2c/0x38
  [<10223120>] blk_insert_request+0xe0/0x104
  [<1024cbb0>] scsi_queue_insert+0x68/0x9c
  [<1024915c>] scsi_finish_command+0x9c/0xc0
  [<10249068>] scsi_softirq+0xfc/0x11c
  [<10262fb4>] ncr53c8xx_intr+0x74/0xbc
  [<101299cc>] do_softirq+0xf4/0xf8
  [<10220468>] elv_requeue_request+0x2c/0x38
  [<10107270>] do_cpu_irq_mask+0xfc/0x10c
  [<10220468>] elv_requeue_request+0x2c/0x38
  [<1010b068>] intr_return+0x0/0x14
  [<1024cbb0>] scsi_queue_insert+0x68/0x9c
  [<1010b070>] intr_return+0x8/0x14
  [<1016ba8c>] may_open+0x58/0x1c8
  [<1015a850>] dentry_open+0x138/0x1c4
  [<1016e784>] locate_fd+0x158/0x194
  [<1010b068>] intr_return+0x0/0x14
[...]
and so on severall time.

I also drive the same test over a nfs (as it seems that lan and scsi ctrl on this c110 share the same U2 bridge?):
no pb.

May I so reasonably thought that pb is loacted into ncr53c720 scsi driver?

Thanks in advance for additional help,
	Joel



Joel Soete wrote:
> 
> 
> Andy Walker wrote:
> 
>>> Hello Andy,
>>>
>>> Sorry for delay but I was a bit busy by a production server.
>>
>>
>>
>> No problem.
>>
>>
>>>> 2.6.6-rc1-pa0 shows the same behaviour,
>>>
>>>
>>> Thanks.
>>> but not a surprise regarding previous test.
>>>
>>>
>>>> although it does seem to make it
>>>> through the Gentoo boot process most times.
>>>
>>>
>>> I would not be surprise if it occures during some fsck. Do you also use
>>> ext3 on your Gentoo?
>>> btw Gentoo always install pkg by a local rebuild from src (that's a long
>>> time that I visit the site)?
>>
>>
>>
>> That's the Gentoo way - so every package on my system is compiled
>> -march=2.0 -mschedule=8000. The downside is that install and upgrade
>> takes a long time on slow machines.
> 
> 
> Yes that why I do not investegate more: I don't have a lot of budget for 
> my system which are generaly systems a bit outdated machine recover from 
> trash still just enough for my investigation but a bit too slow to build 
> all the tools I would like to maintained uptodate frequently. The very 
> great stuff would have to have the choice: update from pre-compiled 
> binaries or a local compile. The debian packaging system is very robust 
> (some month ago, on a i386, I do an update from a old woody (r0 iirc) 
> directly to unstable aka sid without any pb) but I do not yet find a 
> clear doc explaining me how to personalize pkg from dpkg src (I would 
> like for instance change the prefix in general /usr into 
> /opt/app/app_rev a la hp)?
> 
>> The upside is that you get total
>> control over package selection and compilation options. I've played
>> with Debian before but I find apt a pain compared to Gentoo's portage.
>> Also all this sid/woody/stable/unstable etc.... stuff confuses me.
>>
> That is the simple aspect: in short
>     the current stable release was named (the 2.x was potato, the 
> current one woody)
>     the very last packages otc are put in unstable (aka sid) for large 
> testing and debuging
>     when pkg become enough stable it is pushed in testing the futur 
> debian release (recently named sarge)
> 
> there are also security update for stable release only because there are 
> in general in unstable and testing before!
> 
> For my part I only have ineterest in very last available packages (so 
> sid or unstable) to test new features but some times (rarely in fact) 
> the system is a bit 'unstable' :) (that's my choice).
> 
>>
>>>> I've compiled 2.6.3-pa2 in the hope of getting the C180 up and stable.
>>>
>>>
>>> This seems to be the last one enough stable for me and my c110: I just
>>> updated my distro (that used a lot tar iirc) and all works
>>> fine with this kernel.
>>
>>
>>
>> 2.6.3-pa2 is rock solid. I've been running updates, kernel compilation -
>> pretty heavy stuff, and no problems.
>> I'm just about to 'emerge' X11 - that should keep it downloading,
>> untarring and compiling for 24 hours.
>>
> Ok
> 
>> Any suggestions for things I might test to narrow our problem down.
>>
> Not realy for the moment, as explain previously, the problem seems to 
> apear between 2.6.4-rc1-pa3 and 2.6.4-rc3-pa6.
> I will try to figure out now if it comes from upstream or from or tree: 
> I am on going to rebuild 2.6.4-rc3-pa1 and see how will it behave.
> 
> Thanks a lot,
>     Joel
> 


From - Thu Nov 08 21:31:49 2018
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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Another cache flush & fork/exec speedup
Date: 17 Apr 2004 19:20:26 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:21456

This one still has problems.  It's self hosting, but it falls over under
heavy stress (with segfaults that seem to be related to COW).

So, treat it with caution.

The benchmarks show that the fork/exec time has basically been cut in
half in this incarnation.

My next task will be to instrument the kernel page flushing like the
user one has been done.

After this it's the hard tasks:

1. Alter the page table layout to recover an extra flag for separate I/D
cache flushing
2. work out a scheme for doing last man out flushes of congruently
mapped shared pages.

James

# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
#	           ChangeSet	1.1792  -> 1.1796 
#	         mm/fremap.c	1.16    -> 1.18   
#	include/asm-parisc/cache.h	1.6     -> 1.7    
#	arch/parisc/kernel/pacache.S	1.5     -> 1.6    
#	include/asm-parisc/page.h	1.5     -> 1.8    
#	arch/parisc/kernel/entry.S	1.14    -> 1.17   
#	arch/parisc/kernel/cache.c	1.12    -> 1.14   
#	         mm/memory.c	1.154   -> 1.156  
#	include/asm-parisc/tlb.h	1.1     -> 1.2    
#	arch/parisc/kernel/sys_parisc.c	1.17    -> 1.18   
#	include/asm-parisc/pgtable.h	1.16    -> 1.17   
#	include/asm-parisc/cacheflush.h	1.9     -> 1.12   
#	arch/parisc/kernel/signal.c	1.14    -> 1.15   
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 04/04/14	jejb@raven.il.steeleye.com	1.1790.1.1
# ICI
# --------------------------------------------
# 04/04/14	jejb@raven.il.steeleye.com	1.1793
# hand
# --------------------------------------------
# 04/04/15	jejb@raven.il.steeleye.com	1.1794
# First draft of working stingy cache flushing
# --------------------------------------------
# 04/04/16	jejb@raven.il.steeleye.com	1.1795
# More clean ups
# --------------------------------------------
# 04/04/16	jejb@raven.il.steeleye.com	1.1796
# Fix flushing
# 
# - eliminate flush_icache_page()
# - make copy_user_page do correct flushing
# --------------------------------------------
#
diff -Nru a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
--- a/arch/parisc/kernel/cache.c	Sat Apr 17 19:16:12 2004
+++ b/arch/parisc/kernel/cache.c	Sat Apr 17 19:16:12 2004
@@ -230,6 +230,7 @@
 void __flush_dcache_page(struct page *page)
 {
 	struct list_head *l;
+	pte_t *pte;
 
 	flush_kernel_dcache_page(page_address(page));
 
@@ -260,9 +261,10 @@
 		 * have to find a congruent address with an existing
 		 * translation */
 
-		if (!translation_exists(mpnt, addr))
+		if (!(pte = translation_exists(mpnt, addr)))
 			continue;
 
+		pte_clear_flush(pte);
 		__flush_cache_page(mpnt, addr);
 
 		/* If we find an address to flush, that will also
@@ -293,15 +295,205 @@
 		/* This is just for speed.  If the page translation isn't
 		 * there there's no point exciting the nadtlb handler into
 		 * a nullification frenzy */
-		if(!translation_exists(mpnt, addr))
+		if(!(pte = translation_exists(mpnt, addr)))
 			continue;
 
+		pte_clear_flush(pte);
 		__flush_cache_page(mpnt, addr);
 
 		return;
 	}
 }
 EXPORT_SYMBOL(__flush_dcache_page);
+
+/* set to max pages to flush before a full flush.  Zero means no limit */
+#define MAX_FLUSH_PAGES 0
+#undef	DEBUG_PAGE_FLUSHING
+
+#ifdef DEBUG_PAGE_FLUSHING
+#define DBG(a...)	printk(a)
+#else
+#define DBG(...)
+#endif
+
+#if (MAX_FLUSH_PAGES != 0)
+
+/* we get to use the bottom 12 bits of the addr for flags since the
+ * address must be page aligned */
+#define ICACHE_FLUSH_FLAG	0x1
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long count = 0, actual_count = 0;
+	unsigned long sr3 = mfsp(3), cr25 = mfctl(25);
+	unsigned long *pages;
+
+	preempt_disable();
+	if(mm != current->active_mm) {
+		DBG("flush_tlb_mm: current MM is not active ");
+		/* FIXME: awful hack: move the process the mm belongs
+		 * to temporarily to being the active one.  This only
+		 * works because we can never get back into user
+		 * context from here. */
+		mtctl(__pa(mm->pgd), 25);
+		mtsp(mm->context, 3);
+	}
+
+	pages = kmalloc(MAX_FLUSH_PAGES * sizeof(unsigned long), GFP_ATOMIC);
+	if(!pages) {
+		printk(KERN_ERR "flush_tlb_mm: allocation failed: full flush\n");
+		goto full_flush;
+	}
+
+	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+		unsigned long start;
+
+		pmd_t *pmd;
+		pgd_t *pgd;
+		pte_t *pte;
+
+		count += (vma->vm_end - vma->vm_start)/PAGE_SIZE;
+
+		for (start = vma->vm_start; start < vma->vm_end;
+		     start += PAGE_SIZE) {
+			pgd = pgd_offset(mm, start);
+
+			if (pgd_none(*pgd)) {
+				start = (start & PGDIR_MASK) + PGDIR_SIZE - PAGE_SIZE;
+				continue;
+			}
+
+			pmd = pmd_offset(pgd, start);
+			if (pmd_none(*pmd)) {
+				start = (start & PMD_MASK) + PMD_SIZE - PAGE_SIZE;
+				continue;
+			}
+			pte = pte_offset_map(pmd, start);
+			if(pte_val(*pte)==0 || !pte_present(*pte))
+				continue;
+
+			/* FIXME: Here we could also skip over any
+			 * shared mapping page (i.e. equivalently
+			 * aliased) with at least one other user */
+			
+			pages[actual_count] = start;
+		 
+			if (vma->vm_flags & VM_EXEC)
+				pages[actual_count] |= ICACHE_FLUSH_FLAG;
+			if(++actual_count >= MAX_FLUSH_PAGES)
+				goto full_flush_free;
+
+		}
+	}
+			
+	DBG("FLUSHED %lu (actual %lu)\n", count, actual_count);
+	for(count = 0; count < actual_count; count++) {
+		unsigned long addr = pages[count] & PAGE_MASK;
+		flush_user_dcache_page(addr);
+		if(pages[count] & ICACHE_FLUSH_FLAG) {
+			flush_user_icache_page(addr);
+			pitlb_user(addr);
+		}
+		pdtlb_user(addr);
+	}
+ out_free:
+	kfree(pages);
+ out:
+	mtsp(sr3, 3);
+	mtctl(cr25, 25);
+	preempt_enable();
+	return;
+
+ full_flush_free:
+	DBG("flush_cache_mm: over max pages %ld (count %ld), flushing everything\n", actual_count, count);
+	flush_cache_all();
+	goto out_free;
+
+ full_flush:
+	flush_cache_all();
+	goto out;
+}
+
+#else
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long count = 0, actual_count = 0;
+	unsigned long sr3 = mfsp(3), cr25 = mfctl(25);
+#if 1
+	static int flushed = 0;
+
+	if(unlikely(!flushed)) {
+		printk("flush_cache_mm: INIT FLUSH ALL\n");
+		flushed = 1;
+		flush_cache_all();
+		return;
+	}
+#endif
+	preempt_disable();
+	if(mm != current->active_mm) {
+		DBG("flush_tlb_mm: current MM is not active ");
+		/* FIXME: awful hack: move the process the mm belongs
+		 * to temporarily to being the active one.  This only
+		 * works because we can never get back into user
+		 * context from here. */
+		mtctl(__pa(mm->pgd), 25);
+		mtsp(mm->context, 3);
+	}
+
+	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+		unsigned long start;
+
+		pmd_t *pmd;
+		pgd_t *pgd;
+		pte_t *pte;
+
+		count += (vma->vm_end - vma->vm_start)/PAGE_SIZE;
+
+		for (start = vma->vm_start; start < vma->vm_end;
+		     start += PAGE_SIZE) {
+			pgd = pgd_offset(mm, start);
+
+			if (pgd_none(*pgd)) {
+				start = (start & PGDIR_MASK) + PGDIR_SIZE - PAGE_SIZE;
+				continue;
+			}
+
+			pmd = pmd_offset(pgd, start);
+			if (pmd_none(*pmd)) {
+				start = (start & PMD_MASK) + PMD_SIZE - PAGE_SIZE;
+				continue;
+			}
+			pte = pte_offset_map(pmd, start);
+			if(pte_val(*pte)==0 || !pte_present(*pte))
+				continue;
+
+			if(!pte_flush(*pte))
+				continue;
+
+			/* FIXME: Here we could also skip over any
+			 * shared mapping page (i.e. equivalently
+			 * aliased) with at least one other user */
+			pte_clear_flush(pte);
+			flush_user_dcache_page(start);
+			if (vma->vm_flags & VM_EXEC) {
+				flush_user_icache_page(start);
+				pitlb_user(start);
+			}
+			pdtlb_user(start);
+			actual_count++;
+		}
+	}
+	mtsp(sr3, 3);
+	mtctl(cr25, 25);
+	preempt_enable();
+	DBG("FLUSHED %lu (actual %lu)\n", count, actual_count);
+}
+#endif
+
+EXPORT_SYMBOL(flush_cache_mm);
 
 /* Defined in arch/parisc/kernel/pacache.S */
 EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
diff -Nru a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
--- a/arch/parisc/kernel/entry.S	Sat Apr 17 19:16:12 2004
+++ b/arch/parisc/kernel/entry.S	Sat Apr 17 19:16:12 2004
@@ -49,7 +49,6 @@
 	.level 2.0
 #endif
 
-	.import         pa_dbit_lock,data
 
 	/* space_to_prot macro creates a prot id from a space id */
 
@@ -1017,6 +1016,10 @@
 	or		t1,pte,t0	/* t0 has R bit set */
 	and,*<>         t1,pte,%r0      /* test and nullify if already set */
 	std             t0,0(ptp)       /* write back pte */
+	ldi		_PAGE_FLUSH,t1
+	or		t1,t0,t0
+	and,*<>		t1,pte,%r0
+	std		t0,0(ptp)
 
 	space_to_prot   spc prot        /* create prot id from space */
 	depd            pte,8,7,prot    /* add in prot bits from pte */
@@ -1093,7 +1096,7 @@
 	shladd           t0,3,ptp,ptp
 	ldi		_PAGE_ACCESSED,t1
 	ldd              0(ptp),pte
-	bb,>=,n          pte,_PAGE_PRESENT_BIT,nadtlb_check_flush_20w
+	bb,>=,n          pte,_PAGE_PRESENT_BIT,nadtlb_emulate
 
 	space_to_prot   spc prot        /* create prot id from space */
 	depd            pte,8,7,prot    /* add in prot bits from pte */
@@ -1112,23 +1115,6 @@
 	rfir
 	nop
 
-nadtlb_check_flush_20w:
-	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
-
-	/* Insert a "flush only" translation */
-
-	depdi,z         7,7,3,prot
-	depdi           1,10,1,prot
-
-	/* Get rid of prot bits and convert to page addr for idtlbt */
-
-	depdi		0,63,12,pte
-	extrd,u         pte,56,52,pte
-	idtlbt          pte,prot
-
-	rfir
-	nop
-
 #else
 
 dtlb_miss_11:
@@ -1514,6 +1500,10 @@
 	or		t1,pte,t0	/* t0 has R bit set */
 	and,*<>         t1,pte,%r0      /* test and nullify if already set */
 	std             t0,0(ptp)       /* write back pte */
+	ldi		_PAGE_FLUSH,t1
+	or		t1,t0,t0
+	and,*<>		t1,pte,%r0
+	std		t0,0(ptp)
 
 	space_to_prot   spc prot        /* create prot id from space */
 	depd            pte,8,7,prot    /* add in prot bits from pte */
diff -Nru a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
--- a/arch/parisc/kernel/pacache.S	Sat Apr 17 19:16:12 2004
+++ b/arch/parisc/kernel/pacache.S	Sat Apr 17 19:16:12 2004
@@ -308,6 +308,24 @@
 

 1:
+#ifdef __LP64__
+	ldd 0(%r25),%r19
+	ldd 8(%r25),%r20
+	ldd 16(%r25),%r21
+	ldd 24(%r25),%r22
+	std %r19,0(%r26)
+	std %r20,8(%r26)
+	std %r21,16(%r26)
+	std %r22,24(%r26)
+	ldd 32(%r25),%r19
+	ldd 40(%r25),%r20
+	ldd 48(%r25),%r21
+	ldd 56(%r25),%r22
+	std %r19,32(%r26)
+	std %r20,40(%r26)
+	std %r21,48(%r26)
+	std %r22,56(%r26)
+#else
 	ldw 0(%r25),%r19
 	ldw 4(%r25),%r20
 	ldw 8(%r25),%r21
@@ -340,6 +358,7 @@
 	stw %r20,52(%r26)
 	stw %r21,56(%r26)
 	stw %r22,60(%r26)
+#endif
 	ldo 64(%r26),%r26
 	ADDIB>  -1,%r1,1b
 	ldo 64(%r25),%r25
@@ -375,7 +394,6 @@
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
 
 	/*
 	 * We can't do this since copy_user_page is used to bring in
@@ -390,9 +408,9 @@
 	 * lobby for such a change.
 	 */
 
-	.export copy_user_page_asm,code
+	.export copy_user_page_vaddr_asm,code
 
-copy_user_page_asm:
+copy_user_page_vaddr_asm:
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -436,6 +454,24 @@
 

 1:
+#ifdef __LP64__
+	ldd 0(%r29),%r19
+	ldd 8(%r29),%r20
+	ldd 16(%r29),%r21
+	ldd 24(%r29),%r22
+	std %r19,0(%r28)
+	std %r20,8(%r28)
+	std %r21,16(%r28)
+	std %r22,24(%r28)
+	ldd 32(%r29),%r19
+	ldd 40(%r29),%r20
+	ldd 48(%r29),%r21
+	ldd 56(%r29),%r22
+	std %r19,32(%r28)
+	std %r20,40(%r28)
+	std %r21,48(%r28)
+	std %r22,56(%r28)
+#else
 	ldw 0(%r29),%r19
 	ldw 4(%r29),%r20
 	ldw 8(%r29),%r21
@@ -468,6 +504,7 @@
 	stw %r20,52(%r28)
 	stw %r21,56(%r28)
 	stw %r22,60(%r28)
+#endif
 	ldo 64(%r28),%r28
 	ADDIB>  -1,%r1,1b
 	ldo 64(%r29),%r29
@@ -477,7 +514,6 @@
 	.exit
 
 	.procend
-#endif
 
 	.export clear_user_page_asm,code
 
@@ -506,6 +542,16 @@
 	ldi 64,%r1
 
 1:
+#ifdef __LP64__
+	std %r0,0(%r28)
+	std %r0,8(%r28)
+	std %r0,16(%r28)
+	std %r0,24(%r28)
+	std %r0,32(%r28)
+	std %r0,40(%r28)
+	std %r0,48(%r28)
+	std %r0,56(%r28)
+#else
 	stw %r0,0(%r28)
 	stw %r0,4(%r28)
 	stw %r0,8(%r28)
@@ -522,6 +568,7 @@
 	stw %r0,52(%r28)
 	stw %r0,56(%r28)
 	stw %r0,60(%r28)
+#endif
 	ADDIB>  -1,%r1,1b
 	ldo 64(%r28),%r28
 
diff -Nru a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
--- a/arch/parisc/kernel/signal.c	Sat Apr 17 19:16:12 2004
+++ b/arch/parisc/kernel/signal.c	Sat Apr 17 19:16:12 2004
@@ -375,10 +375,9 @@
 	}
 #endif
 
-	flush_user_dcache_range((unsigned long) &frame->tramp[0],
-			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
-	flush_user_icache_range((unsigned long) &frame->tramp[0],
-			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
+	__flush_cache_range(current->active_mm,
+			    (unsigned long) &frame->tramp[0],
+			    (unsigned long) &frame->tramp[TRAMP_SIZE]);
 
 	/* TRAMP Words 0-4, Lenght 5 = SIGRESTARTBLOCK_TRAMP
 	 * TRAMP Words 5-9, Length 4 = SIGRETURN_TRAMP
diff -Nru a/include/asm-parisc/cache.h b/include/asm-parisc/cache.h
--- a/include/asm-parisc/cache.h	Sat Apr 17 19:16:12 2004
+++ b/include/asm-parisc/cache.h	Sat Apr 17 19:16:12 2004
@@ -63,9 +63,11 @@
 extern int icache_stride;
 extern struct pdc_cache_info cache_info;
 
-#define pdtlb(addr)         asm volatile("pdtlb 0(%%sr1,%0)" : : "r" (addr));
-#define pitlb(addr)         asm volatile("pitlb 0(%%sr1,%0)" : : "r" (addr));
-#define pdtlb_kernel(addr)  asm volatile("pdtlb 0(%0)" : : "r" (addr));
+#define pdtlb(addr)         asm volatile("pdtlb 0(%%sr1,%0)" : : "r" (addr))
+#define pitlb(addr)         asm volatile("pitlb 0(%%sr1,%0)" : : "r" (addr))
+#define pdtlb_kernel(addr)  asm volatile("pdtlb 0(%0)" : : "r" (addr))
+#define pdtlb_user(addr)    asm volatile("pdtlb 0(%%sr3,%0)" : : "r" (addr))
+#define pitlb_user(addr)    asm volatile("pitlb 0(%%sr3,%0)" : : "r" (addr))
 
 #endif /* ! __ASSEMBLY__ */
 
diff -Nru a/include/asm-parisc/cacheflush.h b/include/asm-parisc/cacheflush.h
--- a/include/asm-parisc/cacheflush.h	Sat Apr 17 19:16:12 2004
+++ b/include/asm-parisc/cacheflush.h	Sat Apr 17 19:16:12 2004
@@ -9,11 +9,7 @@
 
 /* Cache flush operations */
 
-#ifdef CONFIG_SMP
-#define flush_cache_mm(mm) flush_cache_all()
-#else
-#define flush_cache_mm(mm) flush_cache_all_local()
-#endif
+extern void flush_cache_mm(struct mm_struct *);
 
 #define flush_kernel_dcache_range(start,size) \
 	flush_kernel_dcache_range_asm((start), (start)+(size));
@@ -33,52 +29,6 @@
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
 
-/* The following value needs to be tuned and probably scaled with the
- * cache size.
- */
-
-#define FLUSH_THRESHOLD 0x80000
-
-static inline void
-flush_user_dcache_range(unsigned long start, unsigned long end)
-{
-#ifdef CONFIG_SMP
-	flush_user_dcache_range_asm(start,end);
-#else
-	if ((end - start) < FLUSH_THRESHOLD)
-		flush_user_dcache_range_asm(start,end);
-	else
-		flush_data_cache();
-#endif
-}
-
-static inline void
-flush_user_icache_range(unsigned long start, unsigned long end)
-{
-#ifdef CONFIG_SMP
-	flush_user_icache_range_asm(start,end);
-#else
-	if ((end - start) < FLUSH_THRESHOLD)
-		flush_user_icache_range_asm(start,end);
-	else
-		flush_instruction_cache();
-#endif
-}
-
-extern void __flush_dcache_page(struct page *page);
-
-static inline void flush_dcache_page(struct page *page)
-{
-	if (page->mapping && list_empty(&page->mapping->i_mmap) &&
-			list_empty(&page->mapping->i_mmap_shared)) {
-		set_bit(PG_dcache_dirty, &page->flags);
-	} else {
-		__flush_dcache_page(page);
-	}
-}
-
-#define flush_icache_page(vma,page)	do { flush_kernel_dcache_page(page_address(page)); flush_kernel_icache_page(page_address(page)); } while (0)
-
 #define flush_icache_range(s,e)		do { flush_kernel_dcache_range_asm(s,e); flush_kernel_icache_range_asm(s,e); } while (0)
 
 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
@@ -88,49 +38,31 @@
 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
 	memcpy(dst, src, len)
 
-static inline void flush_cache_range(struct vm_area_struct *vma,
-		unsigned long start, unsigned long end)
-{
-	int sr3;
-
-	if (!vma->vm_mm->context) {
-		BUG();
-		return;
-	}
-
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
-	} else {
-		flush_cache_all();
-	}
-}
-
 /* Simple function to work out if we have an existing address translation
  * for a user space vma. */
-static inline int translation_exists(struct vm_area_struct *vma,
-				     unsigned long addr)
+static inline pte_t *__translation_exists(struct mm_struct *mm,
+					  unsigned long addr)
 {
-	pgd_t *pgd = pgd_offset(vma->vm_mm, addr);
+	pgd_t *pgd = pgd_offset(mm, addr);
 	pmd_t *pmd;
 	pte_t *pte;
 
 	if(pgd_none(*pgd))
-		return 0;
+		return NULL;
 
 	pmd = pmd_offset(pgd, addr);
 	if(pmd_none(*pmd) || pmd_bad(*pmd))
-		return 0;
+		return NULL;
 
 	pte = pte_offset_map(pmd, addr);
 
 	/* The PA flush mappings show up as pte_none, but they're
 	 * valid none the less */
 	if(pte_none(*pte) && ((pte_val(*pte) & _PAGE_FLUSH) == 0))
-		return 0;
-	return 1;
+		return NULL;
+	return pte;
 }
+#define translation_exists(vma, addr)	__translation_exists((vma)->vm_mm, addr)
 

 /* Private function to flush a page from the cache of a non-current
@@ -157,8 +89,11 @@
 	mtsp(vma->vm_mm->context, 3);
 
 	flush_user_dcache_page(vmaddr);
-	if(vma->vm_flags & VM_EXEC)
+	if(vma->vm_flags & VM_EXEC) {
 		flush_user_icache_page(vmaddr);
+		pitlb_user(vmaddr);
+	}
+	pdtlb_user(vmaddr);
 
 	/* put the old current process back */
 	mtsp(space, 3);
@@ -171,8 +106,11 @@
 {
 	if (likely(vma->vm_mm->context == mfsp(3))) {
 		flush_user_dcache_page(vmaddr);
-		if (vma->vm_flags & VM_EXEC)
+		if (vma->vm_flags & VM_EXEC) {
 			flush_user_icache_page(vmaddr);
+			pitlb_user(vmaddr);
+		}
+		pdtlb_user(vmaddr);
 	} else {
 		flush_user_cache_page_non_current(vma, vmaddr);
 	}
@@ -181,11 +119,115 @@
 static inline void
 flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
 {
+	pte_t *pte = translation_exists(vma, vmaddr);
+
 	BUG_ON(!vma->vm_mm->context);
 
-	if(likely(translation_exists(vma, vmaddr)))
+	if(likely(pte && !pte_flush(*pte))) {
+		pte_clear_flush(pte);
 		__flush_cache_page(vma, vmaddr);
+	}
 
 }
+
+static inline void
+flush_icache_page(struct vm_area_struct *vma, struct page *page)
+{
+}
+
+/* The following value needs to be tuned and probably scaled with the
+ * cache size.
+ */
+
+#define FLUSH_THRESHOLD 0x80000
+
+static inline void
+__flush_cache_range(struct mm_struct *mm, unsigned long start,
+		    unsigned long end)
+{
+	unsigned long vaddr;
+	pte_t *pte;
+
+	/* small range, don't bother to flush the whole page (and
+	 * thus don't mark the page as flushed */
+	if (likely(end - start < PAGE_SIZE)) {
+		flush_user_dcache_range_asm(start,end);
+		flush_user_icache_range_asm(start,end);
+		return;
+	}
+
+	for (vaddr = start & PAGE_MASK; vaddr < end; vaddr += PAGE_SIZE) {
+		if(unlikely(!(pte = __translation_exists(mm, vaddr))))
+			continue;
+
+		if (unlikely(!pte_flush(*pte)))
+			continue;
+
+		pte_clear_flush(pte);
+		flush_user_dcache_page(vaddr);
+		flush_user_icache_page(vaddr);
+		pdtlb_user(vaddr);
+		pitlb_user(vaddr);
+	}
+}
+
+static inline void flush_cache_range(struct vm_area_struct *vma,
+				     unsigned long start, unsigned long end)
+{
+	unsigned long sr3 = mfsp(3);
+
+	BUG_ON(!vma->vm_mm->context);
+
+	if (likely(vma->vm_mm->context == sr3)) {
+		__flush_cache_range(vma->vm_mm, start, end);
+	} else {
+		unsigned long pgd = mfctl(25);
+		/* we don't mind taking interrups since they may not
+		 * do anything with user space, but we can't
+		 * be preempted here */
+		preempt_disable();
+
+		/* make us current */
+		mtctl(__pa(vma->vm_mm->pgd), 25);
+		mtsp(vma->vm_mm->context, 3);
+
+		__flush_cache_range(vma->vm_mm, start, end);
+
+		/* put the old current process back */
+		mtsp(sr3, 3);
+		mtctl(pgd, 25);
+		preempt_enable();
+
+	}
+}
+
+extern void __flush_dcache_page(struct page *page);
+
+static inline void flush_dcache_page(struct page *page)
+{
+	if (page->mapping && list_empty(&page->mapping->i_mmap) &&
+			list_empty(&page->mapping->i_mmap_shared)) {
+		set_bit(PG_dcache_dirty, &page->flags);
+	} else {
+		__flush_dcache_page(page);
+	}
+}
+
+static inline void
+copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *pg)
+{
+	pte_t *pte;
+	copy_user_page_asm(vto, vfrom);
+	flush_kernel_dcache_page(vto);
+	if(likely((pte = __translation_exists(current->active_mm, vaddr)) &&
+		  pte_flush(*pte))) {
+		/* no point clearing flush here, it will be set again
+		 * when the user accesses the page */
+		flush_user_dcache_page(vaddr);
+		flush_user_icache_page(vaddr);
+	}
+		
+}
+
 #endif
 
diff -Nru a/include/asm-parisc/page.h b/include/asm-parisc/page.h
--- a/include/asm-parisc/page.h	Sat Apr 17 19:16:12 2004
+++ b/include/asm-parisc/page.h	Sat Apr 17 19:16:12 2004
@@ -19,15 +19,10 @@
 
 extern void purge_kernel_dcache_page(unsigned long);
 extern void copy_user_page_asm(void *to, void *from);
+extern void copy_user_page_vaddr_asm(void *to, void *from, unsigned long vaddr);
 extern void clear_user_page_asm(void *page, unsigned long vaddr);
 
-static inline void
-copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *pg)
-{
-	copy_user_page_asm(vto, vfrom);
-	flush_kernel_dcache_page(vto);
-	/* XXX: ppc flushes icache too, should we? */
-}
+/* see cacheflush.h for copy_user_page */
 
 static inline void
 clear_user_page(void *page, unsigned long vaddr, struct page *pg)
diff -Nru a/include/asm-parisc/pgtable.h b/include/asm-parisc/pgtable.h
--- a/include/asm-parisc/pgtable.h	Sat Apr 17 19:16:12 2004
+++ b/include/asm-parisc/pgtable.h	Sat Apr 17 19:16:12 2004
@@ -29,15 +29,6 @@
  */
 #define kern_addr_valid(addr)	(1)
 
-/* Certain architectures need to do special things when PTEs
- * within a page table are directly modified.  Thus, the following
- * hook is made available.
- */
-#define set_pte(pteptr, pteval)                                 \
-        do{                                                     \
-                *(pteptr) = (pteval);                           \
-        } while(0)
-
 #endif /* !__ASSEMBLY__ */
 
 #define pte_ERROR(e) \
@@ -213,6 +204,15 @@
 #define __S110  PAGE_RWX
 #define __S111  PAGE_RWX
 
+/* Certain architectures need to do special things when PTEs
+ * within a page table are directly modified.  Thus, the following
+ * hook is made available.
+ */
+static inline void set_pte(pte_t *pteptr, pte_t pteval)
+{
+	*pteptr = pteval;
+}
+
 extern pgd_t swapper_pg_dir[]; /* declared in init_task.c */
 
 /* initial page tables for 0-8MB for kernel */
@@ -230,17 +230,16 @@
 
 #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
 
-#define pte_none(x)     ((pte_val(x) == 0) || (pte_val(x) & _PAGE_FLUSH))
+#define pte_none(x)     ((pte_val(x) == 0))
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
-#define pte_clear(xp)	do { pte_val(*(xp)) = 0; } while (0)
+#define pte_clear_flush(xp)	do { pte_val(*(xp)) &= ~ _PAGE_FLUSH; } while(0)
+#define pte_flush(x)	(pte_val(x) & _PAGE_FLUSH)
 
 #define pmd_none(x)	(!pmd_val(x))
 #define pmd_bad(x)	((pmd_val(x) & ~PAGE_MASK) != _PAGE_TABLE)
 #define pmd_present(x)	(pmd_val(x) & _PAGE_PRESENT)
 #define pmd_clear(xp)	do { pmd_val(*(xp)) = 0; } while (0)
 
-
-
 #ifdef __LP64__
 #define pgd_page(pgd) ((unsigned long) __va(pgd_val(pgd) & PAGE_MASK))
 
@@ -282,6 +281,13 @@
 extern inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
 extern inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) |= _PAGE_WRITE; return pte; }
 
+static inline void pte_clear(pte_t *xp) {
+	WARN_ON(pte_flush(*xp) && pte_user(*xp));
+	pte_val(*xp) = 0;
+}
+
+
+
 /*
  * Conversion functions: convert a page and protection to a page entry,
  * and a page entry and page directory to the page they refer to.
@@ -402,23 +408,12 @@
 #endif
 }
 
-#ifdef CONFIG_SMP
-extern spinlock_t pa_dbit_lock;
-#else
-static int pa_dbit_lock; /* dummy to keep the compilers happy */
-#endif
-
 static inline pte_t ptep_get_and_clear(pte_t *ptep)
 {
 	pte_t old_pte;
-	pte_t pte;
 
-	spin_lock(&pa_dbit_lock);
-	pte = old_pte = *ptep;
-	pte_val(pte) &= ~_PAGE_PRESENT;
-	pte_val(pte) |= _PAGE_FLUSH;
-	set_pte(ptep,pte);
-	spin_unlock(&pa_dbit_lock);
+	old_pte = *ptep;
+	pte_clear(ptep);
 
 	return old_pte;
 }
diff -Nru a/include/asm-parisc/tlb.h b/include/asm-parisc/tlb.h
--- a/include/asm-parisc/tlb.h	Sat Apr 17 19:16:12 2004
+++ b/include/asm-parisc/tlb.h	Sat Apr 17 19:16:12 2004
@@ -7,7 +7,7 @@
 } while (0)
 
 #define tlb_start_vma(tlb, vma) \
-do {	if (!(tlb)->fullmm)	\
+do {	\
 		flush_cache_range(vma, vma->vm_start, vma->vm_end); \
 } while (0)
 
diff -Nru a/mm/memory.c b/mm/memory.c
--- a/mm/memory.c	Sat Apr 17 19:16:12 2004
+++ b/mm/memory.c	Sat Apr 17 19:16:12 2004
@@ -1035,11 +1035,13 @@
 		int reuse = can_share_swap_page(old_page);
 		unlock_page(old_page);
 		if (reuse) {
-			flush_cache_page(vma, address);
+			//flush_cache_page(vma, address);
+			flush_dcache_page(old_page);
 			entry = maybe_mkwrite(pte_mkyoung(pte_mkdirty(pte)),
 					      vma);
 			ptep_establish(vma, address, page_table, entry);
 			update_mmu_cache(vma, address, entry);
+			//flush_kernel_dcache_page(page_address(pte_page(entry)));
 			pte_unmap(page_table);
 			spin_unlock(&mm->page_table_lock);
 			return VM_FAULT_MINOR;




From - Thu Nov 08 21:31:49 2018
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Subject: [parisc-linux] Re: kernel>=2.6.4-rc3 hung or panic on C1[18]0 [was:
 2.6.5-rc2-pa2 boot panic on c110 :(]
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X-List-Received-Date: Sun, 18 Apr 2004 14:39:55 -0000
Xref: news.gmane.org gmane.linux.ports.parisc:21457

Hello,

Sorry but I absolutly blind this week-end (no access to 192.25.206 ie debian.org, p-l.org and cvs.p-l.org :_( ), more over I had 
to confirm 'membership in the mailing list parisc-linux' which has been disabled, so I didn't received anymore followup :(

Any way I progress: I revert the following patch against the last pa kernel I had here ie 2.6.5-pa5:
===================================================================
RCS file: /var/lib/cvs/linux-2.6/drivers/parisc/ccio-dma.c,v
retrieving revision 1.12
retrieving revision 1.13
diff -u -r1.12 -r1.13
--- linux-2.6/drivers/parisc/ccio-dma.c 2004/03/09 21:49:04     1.12
+++ linux-2.6/drivers/parisc/ccio-dma.c 2004/03/10 19:24:48     1.13
@@ -38,9 +38,7 @@
  #include <linux/spinlock.h>
  #include <linux/slab.h>
  #include <linux/string.h>
-#define PCI_DEBUG
  #include <linux/pci.h>
-#undef PCI_DEBUG
  #include <linux/reboot.h>

  #include <asm/byteorder.h>
@@ -344,15 +342,16 @@
   * of available pages for the requested size.
   */
  static int
-ccio_alloc_range(struct ioc *ioc, unsigned long pages_needed)
+ccio_alloc_range(struct ioc *ioc, size_t size)
  {
+       unsigned int pages_needed = size >> IOVP_SHIFT;
         unsigned int res_idx;
  #ifdef CCIO_SEARCH_TIME
         unsigned long cr_start = mfctl(16);
  #endif

-       ASSERT(pages_needed);
-       ASSERT((pages_needed * IOVP_SIZE) <= DMA_CHUNK_SIZE);
+       BUG_ON(pages_needed == 0);
+       BUG_ON((pages_needed * IOVP_SIZE) > DMA_CHUNK_SIZE);

         DBG_RES("%s() size: %d pages_needed %d\n",
                 __FUNCTION__, size, pages_needed);
@@ -387,7 +386,7 @@
                 CCIO_FIND_FREE_MAPPING(ioc, res_idx, ~0UL, 64);
  #endif
         } else {
-               panic("%s: %s() Too many pages to map. pages_needed: %ld\n",
+               panic("%s: %s() Too many pages to map. pages_needed: %u\n",
                        __FILE__,  __FUNCTION__, pages_needed);
         }

@@ -420,7 +419,7 @@

  #define CCIO_FREE_MAPPINGS(ioc, res_idx, mask, size) \
          u##size *res_ptr = (u##size *)&((ioc)->res_map[res_idx]); \
-        ASSERT((*res_ptr & mask) == mask); \
+        BUG_ON((*res_ptr & mask) != mask); \
          *res_ptr &= ~(mask);

  /**
@@ -438,9 +437,9 @@
         unsigned long iovp = CCIO_IOVP(iova);
         unsigned int res_idx = PDIR_INDEX(iovp) >> 3;

-       ASSERT(pages_mapped);
-       ASSERT((pages_mapped * IOVP_SIZE) <= DMA_CHUNK_SIZE);
-       ASSERT(pages_mapped <= BITS_PER_LONG);
+       BUG_ON(pages_mapped == 0);
+       BUG_ON((pages_mapped * IOVP_SIZE) > DMA_CHUNK_SIZE);
+       BUG_ON(pages_mapped > BITS_PER_LONG);

         DBG_RES("%s():  res_idx: %d pages_mapped %d\n",
                 __FUNCTION__, res_idx, pages_mapped);
@@ -558,13 +557,14 @@
   * index are bits 12:19 of the value returned by LCI.
   */
  void CCIO_INLINE
-ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, void * vba, unsigned long hints)+ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, 
unsigned long vba,
+                  unsigned long hints)
  {
         register unsigned long pa = (volatile unsigned long) vba;
         register unsigned long ci; /* coherent index */

         /* We currently only support kernel addresses */
-       ASSERT(sid == KERNEL_SPACE);
+       BUG_ON(sid != KERNEL_SPACE);

         mtsp(sid,1);

@@ -677,7 +677,7 @@
                 unsigned int idx = PDIR_INDEX(iovp);
                 char *pdir_ptr = (char *) &(ioc->pdir_base[idx]);

-               ASSERT(idx < (ioc->pdir_size / sizeof(u64)));
+               BUG_ON(idx >= (ioc->pdir_size / sizeof(u64)));
                 pdir_ptr[7] = 0;        /* clear only VALID bit */
                 /*
                 ** FIXME: PCX_W platforms don't need FDC/SYNC. (eg C360)
@@ -747,7 +747,7 @@
         BUG_ON(!dev);
         ioc = GET_IOC(dev);

-       ASSERT(size > 0);
+       BUG_ON(size <= 0);

         /* save offset bits */
         offset = ((unsigned long) addr) & ~IOVP_MASK;
@@ -761,7 +761,7 @@
         ioc->msingle_pages += size >> IOVP_SHIFT;
  #endif

-       idx = ccio_alloc_range(ioc, (size >> IOVP_SHIFT));
+       idx = ccio_alloc_range(ioc, size);
         iovp = (dma_addr_t)MKIOVP(idx);

         pdir_start = &(ioc->pdir_base[idx]);
@@ -774,7 +774,7 @@
                 hint |= HINT_SAFE_DMA;

         while(size > 0) {
-               ccio_io_pdir_entry(pdir_start, KERNEL_SPACE, addr, hint);
+               ccio_io_pdir_entry(pdir_start, KERNEL_SPACE, (unsigned long)addr, hint);

                 DBG_RUN(" pdir %p %08x%08x\n",
                         pdir_start,
@@ -886,162 +886,10 @@
  */
  #define PIDE_FLAG 0x80000000UL

-/**
- * ccio_fill_pdir - Insert coalesced scatter/gather chunks into the I/O Pdir.
- * @ioc: The I/O Controller.
- * @startsg: The scatter/gather list of coalesced chunks.
- * @nents: The number of entries in the scatter/gather list.
- * @hint: The DMA Hint.
- *
- * This function inserts the coalesced scatter/gather list chunks into the
- * I/O Controller's I/O Pdir.
- */
-static CCIO_INLINE int
-ccio_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents,
-              unsigned long hint)
-{
-       struct scatterlist *dma_sg = startsg;   /* pointer to current DMA */
-       int n_mappings = 0;
-       unsigned long dma_offset = 0, dma_len = 0;
-       u64 *pdirp = NULL;
-
-       while (nents-- > 0) {
-               unsigned long vaddr;
-               long size;
-
-               DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
-                          (unsigned long)sg_dma_address(startsg), cnt,
-                          sg_virt_addr(startsg), startsg->length
-               );
-
-
-               /*
-               ** Look for the start of a new DMA stream
-               */
-
-               if (sg_dma_address(startsg) & PIDE_FLAG) {
-                       u32 pide = sg_dma_address(startsg) & ~PIDE_FLAG;
-
-                       if (pdirp) {
-                               BUG_ON(dma_len != sg_dma_len(dma_sg));
-                               dma_sg++;
-                       }
-                       dma_len = sg_dma_len(startsg);
-                       dma_offset = (unsigned long) pide & ~IOVP_MASK;
-                       n_mappings++;
-                       sg_dma_address(dma_sg) = pide;
-                       pdirp = &(ioc->pdir_base[pide >> IOVP_SHIFT]);
-               }
-
-               BUG_ON(pdirp == NULL);
-
-               sg_dma_len(startsg) = 0;
-               vaddr = sg_virt_addr(startsg);
-               sg_dma_len(dma_sg) += startsg->length;
-               size = startsg->length + dma_offset;
-               dma_offset = 0;
-               if (unlikely(size > IOVP_SIZE)) {
-                       printk("VIRTUAL CHUNK has size 0x%lx\n",
-                              size);
-               }
  #ifdef CCIO_MAP_STATS
-               ioc->msg_pages += startsg->length >> IOVP_SHIFT;
+#define IOMMU_MAP_STATS
  #endif
-               do {
-                       ccio_io_pdir_entry(pdirp, KERNEL_SPACE,
-                                          (void *)vaddr, hint);
-                       vaddr += IOVP_SIZE;
-                       size -= IOVP_SIZE;
-                       pdirp++;
-               } while(unlikely(size > 0));
-               startsg++;
-       }
-       return(n_mappings);
-}
-
-/*
-** First pass is to walk the SG list and determine where the breaks are
-** in the DMA stream. Allocates PDIR entries but does not fill them.
-** Returns the number of DMA chunks.
-**
-** Doing the fill separate from the coalescing/allocation keeps the
-** code simpler. Future enhancement could make one pass through
-** the sglist do both.
-*/
-
-static CCIO_INLINE int
-ccio_coalesce_chunks(struct ioc *ioc, struct scatterlist *startsg, int nents)
-{
-       struct scatterlist *contig_sg;     /* contig chunk head */
-       unsigned long dma_offset, dma_len; /* start/len of DMA stream */
-       int n_mappings = 0;
-
-       while (nents > 0) {
-
-               /*
-               ** Prepare for first/next DMA stream
-               */
-               contig_sg = startsg;
-               dma_len = startsg->length;
-               dma_offset = sg_virt_addr(startsg) & ~IOVP_MASK;
-
-               /* PARANOID: clear entries */
-               sg_dma_address(startsg) = 0;
-               sg_dma_len(startsg) = 0;
-
-               /*
-               ** This loop terminates one iteration "early" since
-               ** it's always looking one "ahead".
-               */
-               while(--nents > 0) {
-                       unsigned long prevstartsg_end, startsg_end;
-
-                       prevstartsg_end = sg_virt_addr(startsg) +
-                               startsg->length;
-
-                       startsg++;
-                       startsg_end = sg_virt_addr(startsg) +
-                               startsg->length;
-
-                       /* PARANOID: clear entries */
-                       sg_dma_address(startsg) = 0;
-                       sg_dma_len(startsg) = 0;
-
-                       /*
-                       ** First make sure current dma stream won't
-                       ** exceed DMA_CHUNK_SIZE if we coalesce the
-                       ** next entry.
-                       */
-                       if(unlikely(ROUNDUP(dma_len + dma_offset + startsg->length,
-                                           IOVP_SIZE) > DMA_CHUNK_SIZE))
-                               break;
-
-                       /*
-                       ** Next see if we can append the next chunk (i.e.
-                       ** it must end on one page and begin on another
-                       */
-                       if (unlikely(((prevstartsg_end | sg_virt_addr(startsg))
& ~PAGE_MASK) != 0))
-                               break;
-
-                       dma_len += startsg->length;
-               }
-
-               /*
-               ** End of DMA Stream
-               ** Terminate last VCONTIG block.
-               ** Allocate space for DMA stream.
-               */
-               sg_dma_len(contig_sg) = dma_len;
-               dma_len = ROUNDUP(dma_len + dma_offset, IOVP_SIZE);
-               sg_dma_address(contig_sg) =
-                       PIDE_FLAG
-                       | (ccio_alloc_range(ioc, (dma_len >> IOVP_SHIFT)) << IOVP_SHIFT)
-                       | dma_offset;
-               n_mappings++;
-       }
-
-       return n_mappings;
-}
+#include "iommu-helpers.h"

  /**
   * ccio_map_sg - Map the scatter/gather list into the IOMMU.
@@ -1094,7 +942,7 @@
         ** w/o this association, we wouldn't have coherent DMA!
         ** Access to the virtual address is what forces a two pass algorithm.
         */
-       coalesced = ccio_coalesce_chunks(ioc, sglist, nents);
+       coalesced = iommu_coalesce_chunks(ioc, sglist, nents, ccio_alloc_range);
         /*
         ** Program the I/O Pdir
@@ -1104,7 +952,7 @@
         ** o dma_len will contain the number of bytes to map
         ** o page/offset contain the virtual address.
         */
-       filled = ccio_fill_pdir(ioc, sglist, nents, hint);
+       filled = iommu_fill_pdir(ioc, sglist, nents, hint, ccio_io_pdir_entry);

         spin_unlock_irqrestore(&ioc->res_lock, flags);

@@ -1446,16 +1294,16 @@
         */

         iov_order = get_order(iova_space_size) >> (IOVP_SHIFT - PAGE_SHIFT);
-       ASSERT(iov_order <= (30 - IOVP_SHIFT));   /* iova_space_size <= 1GB */
-       ASSERT(iov_order >= (20 - IOVP_SHIFT));   /* iova_space_size >= 1MB */
+       BUG_ON(iov_order > (30 - IOVP_SHIFT));   /* iova_space_size <= 1GB */
+       BUG_ON(iov_order < (20 - IOVP_SHIFT));   /* iova_space_size >= 1MB */
         iova_space_size = 1 << (iov_order + IOVP_SHIFT);

         ioc->pdir_size = (iova_space_size / IOVP_SIZE) * sizeof(u64);

-       ASSERT(ioc->pdir_size < 4 * 1024 * 1024);   /* max pdir size < 4MB */
+       BUG_ON(ioc->pdir_size >= 4 * 1024 * 1024);   /* max pdir size < 4MB */

         /* Verify it's a power of two */
-       ASSERT((1 << get_order(ioc->pdir_size)) == (ioc->pdir_size >> PAGE_SHIFT));
+       BUG_ON((1 << get_order(ioc->pdir_size)) != (ioc->pdir_size >> PAGE_SHIFT));

         DBG_INIT("%s() hpa 0x%p mem %luMB IOV %dMB (%d bits) PDIR size 0x%0x",
                 __FUNCTION__, ioc->ioc_hpa, physmem>>20, iova_space_size>>20,
@@ -1469,7 +1317,7 @@
         }
         memset(ioc->pdir_base, 0, ioc->pdir_size);

-       ASSERT((((unsigned long)ioc->pdir_base) & PAGE_MASK) == (unsigned long)ioc->pdir_base);
+       BUG_ON((((unsigned long)ioc->pdir_base) & PAGE_MASK) != (unsigned long)ioc->pdir_base);
         DBG_INIT(" base %p", ioc->pdir_base);

         /* resource map size dictated by pdir_size */
@@ -1708,6 +1556,7 @@
                                        proc_runway_root, ccio_resource_map, NULL);
         }
         parisc_vmerge_boundary = IOVP_SIZE;
+       parisc_vmerge_max_size = BITS_PER_LONG * IOVP_SIZE;
         ioc_count++;
         return 0;
  }
==================================================================================================

And the test (find + tar) works again.

I presume that wrong stuff come from the ccio_fill_pdir() or ccio_coalesce_chunks() merge with lba one?
But I don't have yet more accurate idea on what went wrong here (difference between functions are important).

(would it help to rebuild this same kernel tree with gcc-3.0 32bit would help? right now is was build with latest gcc-3.3.3.)

Grant, James any idea?

Thanks again for your understanding,
	Joel

Joel Soete wrote:
> Hi all,
> 
> To summarise I do following test with different kernel to locate this pb:
> launch severall find into local big tree (different release of kernel 
> tree) in the same time of a tar of one of those tree.
> 
> with kernel 2.6.3-pa2 no pb
> with 2.6.4-rc1-pa3 no pb (apparently)
> with 2.6.4-rc3-pa6 system crash (as well as with 2.6.4-rc3-pa1)
> 
> with the last one (2.6.4-rc3-pa1) I also log:
> attempt to access beyond end of device
> sdb9: rw=0, want=2307486096, limit=3075696
> attempt to access beyond end of device
> sdb9: rw=0, want=2842788104, limit=3075696
> attempt to access beyond end of device
> sdb9: rw=0, want=1904280008, limit=3075696
> attempt to access beyond end of device
> sdb9: rw=0, want=2298589592, limit=3075696
> attempt to access beyond end of device
> sdb9: rw=0, want=26325376, limit=3075696
> attempt to access beyond end of device
> sdb9: rw=0, want=1371126224, limit=3075696
> attempt to access beyond end of device
> sdb9: rw=0, want=3277938880, limit=3075696
> attempt to access beyond end of device
> sdb9: rw=0, want=122917000, limit=3075696
> attempt to access beyond end of device
> sdb9: rw=0, want=1151862976, limit=3075696
> attempt to access beyond end of device
> sdb9: rw=0, want=3236466824, limit=3075696
> attempt to access beyond end of device
> sdb9: rw=0, want=3253102776, limit=3075696
> 
> during the first find alone?
> arq->state 2
> Badness in as_requeue_request at drivers/block/as-iosched.c:1479
> Kernel addresses on the stack:
>  [<10125de8>] printk+0x188/0x1c8
>  [<10105938>] dump_stack+0x18/0x24
>  [<102294fc>] as_requeue_request+0x64/0x10c
>  [<10220468>] elv_requeue_request+0x2c/0x38
>  [<1022313c>] blk_insert_request+0xfc/0x104
>  [<1024cbb0>] scsi_queue_insert+0x68/0x9c
>  [<1024915c>] scsi_finish_command+0x9c/0xc0
>  [<10249068>] scsi_softirq+0xfc/0x11c
>  [<10262fb4>] ncr53c8xx_intr+0x74/0xbc
>  [<101299cc>] do_softirq+0xf4/0xf8
>  [<10220468>] elv_requeue_request+0x2c/0x38
>  [<10107270>] do_cpu_irq_mask+0xfc/0x10c
>  [<10220468>] elv_requeue_request+0x2c/0x38
>  [<1010b068>] intr_return+0x0/0x14
>  [<1024cbb0>] scsi_queue_insert+0x68/0x9c
>  [<1010b070>] intr_return+0x8/0x14
>  [<1016ba8c>] may_open+0x58/0x1c8
>  [<1015a850>] dentry_open+0x138/0x1c4
>  [<1016e784>] locate_fd+0x158/0x194
>  [<1010b068>] intr_return+0x0/0x14
> 
> kernel BUG at include/linux/blkdev.h:543!
> Kernel addresses on the stack:
>  [<10125de8>] printk+0x188/0x1c8
>  [<10105938>] dump_stack+0x18/0x24
>  [<1024ddc8>] scsi_request_fn+0x2a0/0x2c4
>  [<10220468>] elv_requeue_request+0x2c/0x38
>  [<10223120>] blk_insert_request+0xe0/0x104
>  [<1024cbb0>] scsi_queue_insert+0x68/0x9c
>  [<1024915c>] scsi_finish_command+0x9c/0xc0
>  [<10249068>] scsi_softirq+0xfc/0x11c
>  [<10262fb4>] ncr53c8xx_intr+0x74/0xbc
>  [<101299cc>] do_softirq+0xf4/0xf8
>  [<10220468>] elv_requeue_request+0x2c/0x38
>  [<10107270>] do_cpu_irq_mask+0xfc/0x10c
>  [<10220468>] elv_requeue_request+0x2c/0x38
>  [<1010b068>] intr_return+0x0/0x14
>  [<1024cbb0>] scsi_queue_insert+0x68/0x9c
>  [<1010b070>] intr_return+0x8/0x14
>  [<1016ba8c>] may_open+0x58/0x1c8
>  [<1015a850>] dentry_open+0x138/0x1c4
>  [<1016e784>] locate_fd+0x158/0x194
>  [<1010b068>] intr_return+0x0/0x14
> [...]
> and so on severall time.
> 
> I also drive the same test over a nfs (as it seems that lan and scsi 
> ctrl on this c110 share the same U2 bridge?):
> no pb.
> 
> May I so reasonably thought that pb is loacted into ncr53c720 scsi driver?
> 
> Thanks in advance for additional help,
>     Joel
> 
> 
> 
> Joel Soete wrote:
> 
>>
>>
>> Andy Walker wrote:
>>
>>>> Hello Andy,
>>>>
>>>> Sorry for delay but I was a bit busy by a production server.
>>>
>>>
>>>
>>>
>>> No problem.
>>>
>>>
>>>>> 2.6.6-rc1-pa0 shows the same behaviour,
>>>>
>>>>
>>>>
>>>> Thanks.
>>>> but not a surprise regarding previous test.
>>>>
>>>>
>>>>> although it does seem to make it
>>>>> through the Gentoo boot process most times.
>>>>
>>>>
>>>>
>>>> I would not be surprise if it occures during some fsck. Do you also use
>>>> ext3 on your Gentoo?
>>>> btw Gentoo always install pkg by a local rebuild from src (that's a 
>>>> long
>>>> time that I visit the site)?
>>>
>>>
>>>
>>>
>>> That's the Gentoo way - so every package on my system is compiled
>>> -march=2.0 -mschedule=8000. The downside is that install and upgrade
>>> takes a long time on slow machines.
>>
>>
>>
>> Yes that why I do not investegate more: I don't have a lot of budget 
>> for my system which are generaly systems a bit outdated machine 
>> recover from trash still just enough for my investigation but a bit 
>> too slow to build all the tools I would like to maintained uptodate 
>> frequently. The very great stuff would have to have the choice: update 
>> from pre-compiled binaries or a local compile. The debian packaging 
>> system is very robust (some month ago, on a i386, I do an update from 
>> a old woody (r0 iirc) directly to unstable aka sid without any pb) but 
>> I do not yet find a clear doc explaining me how to personalize pkg 
>> from dpkg src (I would like for instance change the prefix in general 
>> /usr into /opt/app/app_rev a la hp)?
>>
>>> The upside is that you get total
>>> control over package selection and compilation options. I've played
>>> with Debian before but I find apt a pain compared to Gentoo's portage.
>>> Also all this sid/woody/stable/unstable etc.... stuff confuses me.
>>>
>> That is the simple aspect: in short
>>     the current stable release was named (the 2.x was potato, the 
>> current one woody)
>>     the very last packages otc are put in unstable (aka sid) for large 
>> testing and debuging
>>     when pkg become enough stable it is pushed in testing the futur 
>> debian release (recently named sarge)
>>
>> there are also security update for stable release only because there 
>> are in general in unstable and testing before!
>>
>> For my part I only have ineterest in very last available packages (so 
>> sid or unstable) to test new features but some times (rarely in fact) 
>> the system is a bit 'unstable' :) (that's my choice).
>>
>>>
>>>>> I've compiled 2.6.3-pa2 in the hope of getting the C180 up and stable.
>>>>
>>>>
>>>>
>>>> This seems to be the last one enough stable for me and my c110: I just
>>>> updated my distro (that used a lot tar iirc) and all works
>>>> fine with this kernel.
>>>
>>>
>>>
>>>
>>> 2.6.3-pa2 is rock solid. I've been running updates, kernel compilation -
>>> pretty heavy stuff, and no problems.
>>> I'm just about to 'emerge' X11 - that should keep it downloading,
>>> untarring and compiling for 24 hours.
>>>
>> Ok
>>
>>> Any suggestions for things I might test to narrow our problem down.
>>>
>> Not realy for the moment, as explain previously, the problem seems to 
>> apear between 2.6.4-rc1-pa3 and 2.6.4-rc3-pa6.
>> I will try to figure out now if it comes from upstream or from or 
>> tree: I am on going to rebuild 2.6.4-rc3-pa1 and see how will it behave.
>>
>> Thanks a lot,
>>     Joel
>>
> 


From - Thu Nov 08 21:31:49 2018
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: kernel>=2.6.4-rc3 hung or panic on C1[18]0
	[was: 2.6.5-rc2-pa2 boot panic on c110 :(]
Date: 18 Apr 2004 11:36:02 -0500
Lines: 30
Approved: news@gmane.org
Message-ID: <1082306164.2195.27.camel@mulgrave>
References: <407DA495.1090009@tiscali.be>
	<40711E5500006381@ocpmta2.freegates.net>
	<26419.193.161.152.244.1082114391.squirrel@www.puszczka.com>
	<4081731B.7070006@tiscali.be>
	<32875.127.0.0.1.1082234959.squirrel@www.puszczka.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:21458

On Sun, 2004-04-18 at 09:39, Joel Soete wrote:
> I presume that wrong stuff come from the ccio_fill_pdir() or ccio_coalesce_chunks() merge with lba one?
> But I don't have yet more accurate idea on what went wrong here (difference between functions are important).
> 
> (would it help to rebuild this same kernel tree with gcc-3.0 32bit would help? right now is was build with latest gcc-3.3.3.)
> 
> Grant, James any idea?

Well, actually, the problem can't be in the code you cite, otherwise my
raven wouldn't work either and it's been fine.

However, it's entirely possible that the effects of the patch are
causing issues in the ncr driver.  What it does is correctly coalesce
segments in the iommu.  Before this, the parisc iommus rarely did
coalescing, so our SG lists were usually lots of page sized entities. 
Now the individual entries can be up to 256k long.

I suspect, since your C110 has a 53c720 (using the ncr driver) and my
C360 has a 53c875 (using sym_2) that the ncr driver can't cope with sg
lists whose entries are so long.

The problems are probably due to some sort of fixed length assumption on
sg elements in the ncr driver.

James






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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Possibly working for/exec speedup patch
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Xref: news.gmane.org gmane.linux.ports.parisc:21459

This one has degraded slightly from the previous (still showing a 50%
decrease in fork/exec, though).

This one, I can't actually seem to break under stress (although I'm sure
someone else will manage...).

James

# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
#	           ChangeSet	1.1792  -> 1.1799 
#	         mm/fremap.c	1.16    -> 1.18   
#	include/asm-parisc/cache.h	1.6     -> 1.8    
#	arch/parisc/kernel/pacache.S	1.5     -> 1.8    
#	include/asm-parisc/page.h	1.5     -> 1.8    
#	arch/parisc/kernel/entry.S	1.14    -> 1.17   
#	arch/parisc/kernel/cache.c	1.12    -> 1.15   
#	         mm/memory.c	1.154   -> 1.157  
#	include/asm-parisc/tlb.h	1.1     -> 1.2    
#	arch/parisc/kernel/sys_parisc.c	1.17    -> 1.18   
#	include/asm-parisc/pgtable.h	1.16    -> 1.18   
#	include/asm-parisc/cacheflush.h	1.9     -> 1.14   
#	arch/parisc/kernel/signal.c	1.14    -> 1.15   
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 04/04/14	jejb@raven.il.steeleye.com	1.1790.1.1
# ICI
# --------------------------------------------
# 04/04/14	jejb@raven.il.steeleye.com	1.1793
# hand
# --------------------------------------------
# 04/04/15	jejb@raven.il.steeleye.com	1.1794
# First draft of working stingy cache flushing
# --------------------------------------------
# 04/04/16	jejb@raven.il.steeleye.com	1.1795
# More clean ups
# --------------------------------------------
# 04/04/16	jejb@raven.il.steeleye.com	1.1796
# Fix flushing
# 
# - eliminate flush_icache_page()
# - make copy_user_page do correct flushing
# --------------------------------------------
# 04/04/18	jejb@raven.il.steeleye.com	1.1797
# Add missing page alignment to cache flush arguments
# --------------------------------------------
# 04/04/18	jejb@raven.il.steeleye.com	1.1798
# Add kernel dcache flush limitation
# --------------------------------------------
# 04/04/18	jejb@raven.il.steeleye.com	1.1799
# Eliminate the PG_dcache_dirty bit
# 
# We now rely on the FLUSH_PAGE bit telling us if
# the page needs flushing or not
# --------------------------------------------
#
diff -Nru a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
--- a/arch/parisc/kernel/cache.c	Sun Apr 18 12:07:31 2004
+++ b/arch/parisc/kernel/cache.c	Sun Apr 18 12:07:31 2004
@@ -68,12 +68,14 @@
 {
 	struct page *page = pte_page(pte);
 
-	if (VALID_PAGE(page) && page->mapping &&
-	    test_bit(PG_dcache_dirty, &page->flags)) {
-
+	if (VALID_PAGE(page))
+		/* We used to check to see if the page needed flushing here.
+		 * Now this API automatically detects whether the page
+		 * needs flushing or not.  This is used to defer calls to
+		 * kernel page flushing until mmu update time.
+		 *
+		 * DO NOT REMOVE OR CONDITIONALISE THIS */
 		flush_kernel_dcache_page(page_address(page));
-		clear_bit(PG_dcache_dirty, &page->flags);
-	}
 }
 
 void
@@ -230,6 +232,7 @@
 void __flush_dcache_page(struct page *page)
 {
 	struct list_head *l;
+	pte_t *pte;
 
 	flush_kernel_dcache_page(page_address(page));
 
@@ -260,9 +263,10 @@
 		 * have to find a congruent address with an existing
 		 * translation */
 
-		if (!translation_exists(mpnt, addr))
+		if (!(pte = translation_exists(mpnt, addr)))
 			continue;
 
+		pte_clear_flush(pte);
 		__flush_cache_page(mpnt, addr);
 
 		/* If we find an address to flush, that will also
@@ -293,15 +297,205 @@
 		/* This is just for speed.  If the page translation isn't
 		 * there there's no point exciting the nadtlb handler into
 		 * a nullification frenzy */
-		if(!translation_exists(mpnt, addr))
+		if(!(pte = translation_exists(mpnt, addr)))
 			continue;
 
+		pte_clear_flush(pte);
 		__flush_cache_page(mpnt, addr);
 
 		return;
 	}
 }
 EXPORT_SYMBOL(__flush_dcache_page);
+
+/* set to max pages to flush before a full flush.  Zero means no limit */
+#define MAX_FLUSH_PAGES 0
+#undef	DEBUG_PAGE_FLUSHING
+
+#ifdef DEBUG_PAGE_FLUSHING
+#define DBG(a...)	printk(a)
+#else
+#define DBG(...)
+#endif
+
+#if (MAX_FLUSH_PAGES != 0)
+
+/* we get to use the bottom 12 bits of the addr for flags since the
+ * address must be page aligned */
+#define ICACHE_FLUSH_FLAG	0x1
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long count = 0, actual_count = 0;
+	unsigned long sr3 = mfsp(3), cr25 = mfctl(25);
+	unsigned long *pages;
+
+	preempt_disable();
+	if(mm != current->active_mm) {
+		DBG("flush_tlb_mm: current MM is not active ");
+		/* FIXME: awful hack: move the process the mm belongs
+		 * to temporarily to being the active one.  This only
+		 * works because we can never get back into user
+		 * context from here. */
+		mtctl(__pa(mm->pgd), 25);
+		mtsp(mm->context, 3);
+	}
+
+	pages = kmalloc(MAX_FLUSH_PAGES * sizeof(unsigned long), GFP_ATOMIC);
+	if(!pages) {
+		printk(KERN_ERR "flush_tlb_mm: allocation failed: full flush\n");
+		goto full_flush;
+	}
+
+	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+		unsigned long start;
+
+		pmd_t *pmd;
+		pgd_t *pgd;
+		pte_t *pte;
+
+		count += (vma->vm_end - vma->vm_start)/PAGE_SIZE;
+
+		for (start = vma->vm_start; start < vma->vm_end;
+		     start += PAGE_SIZE) {
+			pgd = pgd_offset(mm, start);
+
+			if (pgd_none(*pgd)) {
+				start = (start & PGDIR_MASK) + PGDIR_SIZE - PAGE_SIZE;
+				continue;
+			}
+
+			pmd = pmd_offset(pgd, start);
+			if (pmd_none(*pmd)) {
+				start = (start & PMD_MASK) + PMD_SIZE - PAGE_SIZE;
+				continue;
+			}
+			pte = pte_offset_map(pmd, start);
+			if(pte_val(*pte)==0 || !pte_present(*pte))
+				continue;
+
+			/* FIXME: Here we could also skip over any
+			 * shared mapping page (i.e. equivalently
+			 * aliased) with at least one other user */
+			
+			pages[actual_count] = start;
+		 
+			if (vma->vm_flags & VM_EXEC)
+				pages[actual_count] |= ICACHE_FLUSH_FLAG;
+			if(++actual_count >= MAX_FLUSH_PAGES)
+				goto full_flush_free;
+
+		}
+	}
+			
+	DBG("FLUSHED %lu (actual %lu)\n", count, actual_count);
+	for(count = 0; count < actual_count; count++) {
+		unsigned long addr = pages[count] & PAGE_MASK;
+		flush_user_dcache_page(addr);
+		if(pages[count] & ICACHE_FLUSH_FLAG) {
+			flush_user_icache_page(addr);
+			pitlb_user(addr);
+		}
+		pdtlb_user(addr);
+	}
+ out_free:
+	kfree(pages);
+ out:
+	mtsp(sr3, 3);
+	mtctl(cr25, 25);
+	preempt_enable();
+	return;
+
+ full_flush_free:
+	DBG("flush_cache_mm: over max pages %ld (count %ld), flushing everything\n", actual_count, count);
+	flush_cache_all();
+	goto out_free;
+
+ full_flush:
+	flush_cache_all();
+	goto out;
+}
+
+#else
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long count = 0, actual_count = 0;
+	unsigned long sr3 = mfsp(3), cr25 = mfctl(25);
+#if 1
+	static int flushed = 0;
+
+	if(unlikely(!flushed)) {
+		printk("flush_cache_mm: INIT FLUSH ALL\n");
+		flushed = 1;
+		flush_cache_all();
+		return;
+	}
+#endif
+	preempt_disable();
+	if(mm != current->active_mm) {
+		DBG("flush_tlb_mm: current MM is not active ");
+		/* FIXME: awful hack: move the process the mm belongs
+		 * to temporarily to being the active one.  This only
+		 * works because we can never get back into user
+		 * context from here. */
+		mtctl(__pa(mm->pgd), 25);
+		mtsp(mm->context, 3);
+	}
+
+	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+		unsigned long start;
+
+		pmd_t *pmd;
+		pgd_t *pgd;
+		pte_t *pte;
+
+		count += (vma->vm_end - vma->vm_start)/PAGE_SIZE;
+
+		for (start = vma->vm_start; start < vma->vm_end;
+		     start += PAGE_SIZE) {
+			pgd = pgd_offset(mm, start);
+
+			if (pgd_none(*pgd)) {
+				start = (start & PGDIR_MASK) + PGDIR_SIZE - PAGE_SIZE;
+				continue;
+			}
+
+			pmd = pmd_offset(pgd, start);
+			if (pmd_none(*pmd)) {
+				start = (start & PMD_MASK) + PMD_SIZE - PAGE_SIZE;
+				continue;
+			}
+			pte = pte_offset_map(pmd, start);
+			if(pte_val(*pte)==0 || !pte_present(*pte))
+				continue;
+
+			if(!pte_flush(*pte))
+				continue;
+
+			/* FIXME: Here we could also skip over any
+			 * shared mapping page (i.e. equivalently
+			 * aliased) with at least one other user */
+			pte_clear_flush(pte);
+			flush_user_dcache_page(start);
+			if (vma->vm_flags & VM_EXEC) {
+				flush_user_icache_page(start);
+				pitlb_user(start);
+			}
+			pdtlb_user(start);
+			actual_count++;
+		}
+	}
+	mtsp(sr3, 3);
+	mtctl(cr25, 25);
+	preempt_enable();
+	DBG("FLUSHED %lu (actual %lu)\n", count, actual_count);
+}
+#endif
+
+EXPORT_SYMBOL(flush_cache_mm);
 
 /* Defined in arch/parisc/kernel/pacache.S */
 EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
diff -Nru a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
--- a/arch/parisc/kernel/entry.S	Sun Apr 18 12:07:31 2004
+++ b/arch/parisc/kernel/entry.S	Sun Apr 18 12:07:31 2004
@@ -49,7 +49,6 @@
 	.level 2.0
 #endif
 
-	.import         pa_dbit_lock,data
 
 	/* space_to_prot macro creates a prot id from a space id */
 
@@ -1017,6 +1016,10 @@
 	or		t1,pte,t0	/* t0 has R bit set */
 	and,*<>         t1,pte,%r0      /* test and nullify if already set */
 	std             t0,0(ptp)       /* write back pte */
+	ldi		_PAGE_FLUSH,t1
+	or		t1,t0,t0
+	and,*<>		t1,pte,%r0
+	std		t0,0(ptp)
 
 	space_to_prot   spc prot        /* create prot id from space */
 	depd            pte,8,7,prot    /* add in prot bits from pte */
@@ -1093,7 +1096,7 @@
 	shladd           t0,3,ptp,ptp
 	ldi		_PAGE_ACCESSED,t1
 	ldd              0(ptp),pte
-	bb,>=,n          pte,_PAGE_PRESENT_BIT,nadtlb_check_flush_20w
+	bb,>=,n          pte,_PAGE_PRESENT_BIT,nadtlb_emulate
 
 	space_to_prot   spc prot        /* create prot id from space */
 	depd            pte,8,7,prot    /* add in prot bits from pte */
@@ -1112,23 +1115,6 @@
 	rfir
 	nop
 
-nadtlb_check_flush_20w:
-	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
-
-	/* Insert a "flush only" translation */
-
-	depdi,z         7,7,3,prot
-	depdi           1,10,1,prot
-
-	/* Get rid of prot bits and convert to page addr for idtlbt */
-
-	depdi		0,63,12,pte
-	extrd,u         pte,56,52,pte
-	idtlbt          pte,prot
-
-	rfir
-	nop
-
 #else
 
 dtlb_miss_11:
@@ -1514,6 +1500,10 @@
 	or		t1,pte,t0	/* t0 has R bit set */
 	and,*<>         t1,pte,%r0      /* test and nullify if already set */
 	std             t0,0(ptp)       /* write back pte */
+	ldi		_PAGE_FLUSH,t1
+	or		t1,t0,t0
+	and,*<>		t1,pte,%r0
+	std		t0,0(ptp)
 
 	space_to_prot   spc prot        /* create prot id from space */
 	depd            pte,8,7,prot    /* add in prot bits from pte */
diff -Nru a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
--- a/arch/parisc/kernel/pacache.S	Sun Apr 18 12:07:31 2004
+++ b/arch/parisc/kernel/pacache.S	Sun Apr 18 12:07:31 2004
@@ -308,6 +308,24 @@
 

 1:
+#ifdef __LP64__
+	ldd 0(%r25),%r19
+	ldd 8(%r25),%r20
+	ldd 16(%r25),%r21
+	ldd 24(%r25),%r22
+	std %r19,0(%r26)
+	std %r20,8(%r26)
+	std %r21,16(%r26)
+	std %r22,24(%r26)
+	ldd 32(%r25),%r19
+	ldd 40(%r25),%r20
+	ldd 48(%r25),%r21
+	ldd 56(%r25),%r22
+	std %r19,32(%r26)
+	std %r20,40(%r26)
+	std %r21,48(%r26)
+	std %r22,56(%r26)
+#else
 	ldw 0(%r25),%r19
 	ldw 4(%r25),%r20
 	ldw 8(%r25),%r21
@@ -340,6 +358,7 @@
 	stw %r20,52(%r26)
 	stw %r21,56(%r26)
 	stw %r22,60(%r26)
+#endif
 	ldo 64(%r26),%r26
 	ADDIB>  -1,%r1,1b
 	ldo 64(%r25),%r25
@@ -375,7 +394,6 @@
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
 
 	/*
 	 * We can't do this since copy_user_page is used to bring in
@@ -390,9 +408,9 @@
 	 * lobby for such a change.
 	 */
 
-	.export copy_user_page_asm,code
+	.export copy_user_page_vaddr_asm,code
 
-copy_user_page_asm:
+copy_user_page_vaddr_asm:
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -436,6 +454,24 @@
 

 1:
+#ifdef __LP64__
+	ldd 0(%r29),%r19
+	ldd 8(%r29),%r20
+	ldd 16(%r29),%r21
+	ldd 24(%r29),%r22
+	std %r19,0(%r28)
+	std %r20,8(%r28)
+	std %r21,16(%r28)
+	std %r22,24(%r28)
+	ldd 32(%r29),%r19
+	ldd 40(%r29),%r20
+	ldd 48(%r29),%r21
+	ldd 56(%r29),%r22
+	std %r19,32(%r28)
+	std %r20,40(%r28)
+	std %r21,48(%r28)
+	std %r22,56(%r28)
+#else
 	ldw 0(%r29),%r19
 	ldw 4(%r29),%r20
 	ldw 8(%r29),%r21
@@ -468,6 +504,7 @@
 	stw %r20,52(%r28)
 	stw %r21,56(%r28)
 	stw %r22,60(%r28)
+#endif
 	ldo 64(%r28),%r28
 	ADDIB>  -1,%r1,1b
 	ldo 64(%r29),%r29
@@ -477,7 +514,6 @@
 	.exit
 
 	.procend
-#endif
 
 	.export clear_user_page_asm,code
 
@@ -506,6 +542,16 @@
 	ldi 64,%r1
 
 1:
+#ifdef __LP64__
+	std %r0,0(%r28)
+	std %r0,8(%r28)
+	std %r0,16(%r28)
+	std %r0,24(%r28)
+	std %r0,32(%r28)
+	std %r0,40(%r28)
+	std %r0,48(%r28)
+	std %r0,56(%r28)
+#else
 	stw %r0,0(%r28)
 	stw %r0,4(%r28)
 	stw %r0,8(%r28)
@@ -522,6 +568,7 @@
 	stw %r0,52(%r28)
 	stw %r0,56(%r28)
 	stw %r0,60(%r28)
+#endif
 	ADDIB>  -1,%r1,1b
 	ldo 64(%r28),%r28
 
@@ -531,9 +578,9 @@
 
 	.procend
 
-	.export flush_kernel_dcache_page
+	.export __flush_kernel_dcache_page
 
-flush_kernel_dcache_page:
+__flush_kernel_dcache_page:
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -542,9 +589,11 @@
 	ldw     R%dcache_stride(%r1),%r23
 
 #ifdef __LP64__
-	depdi,z 1,63-PAGE_SHIFT,1,%r25
+	depdi,z 1,63-PAGE_SHIFT,1,%r25	/* PAGE_SIZE */
+	depdi	0,63,12,%r26		/* page align */
 #else
-	depwi,z 1,31-PAGE_SHIFT,1,%r25
+	depwi,z 1,31-PAGE_SHIFT,1,%r25	/* PAGE_SIZE */
+	depdi	0,31,12,%r26		/* page align */
 #endif
 	add     %r26,%r25,%r25
 	sub     %r25,%r23,%r25
@@ -586,9 +635,11 @@
 	ldw     R%dcache_stride(%r1),%r23
 
 #ifdef __LP64__
-	depdi,z 1,63-PAGE_SHIFT,1,%r25
+	depdi,z 1,63-PAGE_SHIFT,1,%r25  /* PAGE_SIZE into %r25 */
+	depdi	0,63,12,%r26		/* page align argument */
 #else
-	depwi,z 1,31-PAGE_SHIFT,1,%r25
+	depwi,z 1,31-PAGE_SHIFT,1,%r25	/* PAGE_SIZE */
+	depwi	0,31,12,%r26		/* Page align */
 #endif
 	add     %r26,%r25,%r25
 	sub     %r25,%r23,%r25
@@ -631,8 +682,10 @@
 
 #ifdef __LP64__
 	depdi,z 1,63-PAGE_SHIFT,1,%r25
+	depdi	0,63,12,%r26
 #else
 	depwi,z 1,31-PAGE_SHIFT,1,%r25
+	depwi	0,31,12,%r26
 #endif
 	add     %r26,%r25,%r25
 	sub     %r25,%r23,%r25
diff -Nru a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
--- a/arch/parisc/kernel/signal.c	Sun Apr 18 12:07:31 2004
+++ b/arch/parisc/kernel/signal.c	Sun Apr 18 12:07:31 2004
@@ -375,10 +375,9 @@
 	}
 #endif
 
-	flush_user_dcache_range((unsigned long) &frame->tramp[0],
-			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
-	flush_user_icache_range((unsigned long) &frame->tramp[0],
-			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
+	__flush_cache_range(current->active_mm,
+			    (unsigned long) &frame->tramp[0],
+			    (unsigned long) &frame->tramp[TRAMP_SIZE]);
 
 	/* TRAMP Words 0-4, Lenght 5 = SIGRESTARTBLOCK_TRAMP
 	 * TRAMP Words 5-9, Length 4 = SIGRETURN_TRAMP
diff -Nru a/include/asm-parisc/cache.h b/include/asm-parisc/cache.h
--- a/include/asm-parisc/cache.h	Sun Apr 18 12:07:31 2004
+++ b/include/asm-parisc/cache.h	Sun Apr 18 12:07:31 2004
@@ -46,7 +46,7 @@
 extern void flush_kernel_icache_range_asm(unsigned long, unsigned long);
 extern void flush_user_dcache_range_asm(unsigned long, unsigned long);
 extern void flush_kernel_dcache_range_asm(unsigned long, unsigned long);
-extern void flush_kernel_dcache_page(void *);
+extern void __flush_kernel_dcache_page(void *);
 extern void flush_kernel_icache_page(void *);
 extern void disable_sr_hashing(void);   /* turns off space register hashing */
 extern void disable_sr_hashing_asm(int); /* low level support for above */
@@ -63,9 +63,11 @@
 extern int icache_stride;
 extern struct pdc_cache_info cache_info;
 
-#define pdtlb(addr)         asm volatile("pdtlb 0(%%sr1,%0)" : : "r" (addr));
-#define pitlb(addr)         asm volatile("pitlb 0(%%sr1,%0)" : : "r" (addr));
-#define pdtlb_kernel(addr)  asm volatile("pdtlb 0(%0)" : : "r" (addr));
+#define pdtlb(addr)         asm volatile("pdtlb 0(%%sr1,%0)" : : "r" (addr))
+#define pitlb(addr)         asm volatile("pitlb 0(%%sr1,%0)" : : "r" (addr))
+#define pdtlb_kernel(addr)  asm volatile("pdtlb 0(%0)" : : "r" (addr))
+#define pdtlb_user(addr)    asm volatile("pdtlb 0(%%sr3,%0)" : : "r" (addr))
+#define pitlb_user(addr)    asm volatile("pitlb 0(%%sr3,%0)" : : "r" (addr))
 
 #endif /* ! __ASSEMBLY__ */
 
diff -Nru a/include/asm-parisc/cacheflush.h b/include/asm-parisc/cacheflush.h
--- a/include/asm-parisc/cacheflush.h	Sun Apr 18 12:07:31 2004
+++ b/include/asm-parisc/cacheflush.h	Sun Apr 18 12:07:31 2004
@@ -9,14 +9,7 @@
 
 /* Cache flush operations */
 
-#ifdef CONFIG_SMP
-#define flush_cache_mm(mm) flush_cache_all()
-#else
-#define flush_cache_mm(mm) flush_cache_all_local()
-#endif
-
-#define flush_kernel_dcache_range(start,size) \
-	flush_kernel_dcache_range_asm((start), (start)+(size));
+extern void flush_cache_mm(struct mm_struct *);
 
 extern void flush_cache_all_local(void);
 
@@ -33,52 +26,6 @@
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
 
-/* The following value needs to be tuned and probably scaled with the
- * cache size.
- */
-
-#define FLUSH_THRESHOLD 0x80000
-
-static inline void
-flush_user_dcache_range(unsigned long start, unsigned long end)
-{
-#ifdef CONFIG_SMP
-	flush_user_dcache_range_asm(start,end);
-#else
-	if ((end - start) < FLUSH_THRESHOLD)
-		flush_user_dcache_range_asm(start,end);
-	else
-		flush_data_cache();
-#endif
-}
-
-static inline void
-flush_user_icache_range(unsigned long start, unsigned long end)
-{
-#ifdef CONFIG_SMP
-	flush_user_icache_range_asm(start,end);
-#else
-	if ((end - start) < FLUSH_THRESHOLD)
-		flush_user_icache_range_asm(start,end);
-	else
-		flush_instruction_cache();
-#endif
-}
-
-extern void __flush_dcache_page(struct page *page);
-
-static inline void flush_dcache_page(struct page *page)
-{
-	if (page->mapping && list_empty(&page->mapping->i_mmap) &&
-			list_empty(&page->mapping->i_mmap_shared)) {
-		set_bit(PG_dcache_dirty, &page->flags);
-	} else {
-		__flush_dcache_page(page);
-	}
-}
-
-#define flush_icache_page(vma,page)	do { flush_kernel_dcache_page(page_address(page)); flush_kernel_icache_page(page_address(page)); } while (0)
-
 #define flush_icache_range(s,e)		do { flush_kernel_dcache_range_asm(s,e); flush_kernel_icache_range_asm(s,e); } while (0)
 
 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
@@ -88,49 +35,31 @@
 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
 	memcpy(dst, src, len)
 
-static inline void flush_cache_range(struct vm_area_struct *vma,
-		unsigned long start, unsigned long end)
-{
-	int sr3;
-
-	if (!vma->vm_mm->context) {
-		BUG();
-		return;
-	}
-
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
-	} else {
-		flush_cache_all();
-	}
-}
-
 /* Simple function to work out if we have an existing address translation
  * for a user space vma. */
-static inline int translation_exists(struct vm_area_struct *vma,
-				     unsigned long addr)
+static inline pte_t *__translation_exists(struct mm_struct *mm,
+					  unsigned long addr)
 {
-	pgd_t *pgd = pgd_offset(vma->vm_mm, addr);
+	pgd_t *pgd = pgd_offset(mm, addr);
 	pmd_t *pmd;
 	pte_t *pte;
 
 	if(pgd_none(*pgd))
-		return 0;
+		return NULL;
 
 	pmd = pmd_offset(pgd, addr);
 	if(pmd_none(*pmd) || pmd_bad(*pmd))
-		return 0;
+		return NULL;
 
 	pte = pte_offset_map(pmd, addr);
 
 	/* The PA flush mappings show up as pte_none, but they're
 	 * valid none the less */
 	if(pte_none(*pte) && ((pte_val(*pte) & _PAGE_FLUSH) == 0))
-		return 0;
-	return 1;
+		return NULL;
+	return pte;
 }
+#define translation_exists(vma, addr)	__translation_exists((vma)->vm_mm, addr)
 

 /* Private function to flush a page from the cache of a non-current
@@ -157,8 +86,11 @@
 	mtsp(vma->vm_mm->context, 3);
 
 	flush_user_dcache_page(vmaddr);
-	if(vma->vm_flags & VM_EXEC)
+	if(vma->vm_flags & VM_EXEC) {
 		flush_user_icache_page(vmaddr);
+		pitlb_user(vmaddr);
+	}
+	pdtlb_user(vmaddr);
 
 	/* put the old current process back */
 	mtsp(space, 3);
@@ -171,21 +103,153 @@
 {
 	if (likely(vma->vm_mm->context == mfsp(3))) {
 		flush_user_dcache_page(vmaddr);
-		if (vma->vm_flags & VM_EXEC)
+		if (vma->vm_flags & VM_EXEC) {
 			flush_user_icache_page(vmaddr);
+			pitlb_user(vmaddr);
+		}
+		pdtlb_user(vmaddr);
 	} else {
 		flush_user_cache_page_non_current(vma, vmaddr);
 	}
 }
 
+/* The following value needs to be tuned and probably scaled with the
+ * cache size.
+ */
+
+#define FLUSH_THRESHOLD 0x80000
+
+static inline void
+__flush_cache_range(struct mm_struct *mm, unsigned long start,
+		    unsigned long end)
+{
+	unsigned long vaddr;
+	pte_t *pte;
+
+	/* small range, don't bother to flush the whole page (and
+	 * thus don't mark the page as flushed */
+	if (likely(end - start < PAGE_SIZE)) {
+		flush_user_dcache_range_asm(start,end);
+		flush_user_icache_range_asm(start,end);
+		return;
+	}
+
+	for (vaddr = start & PAGE_MASK; vaddr < end; vaddr += PAGE_SIZE) {
+		if(unlikely(!(pte = __translation_exists(mm, vaddr))))
+			continue;
+
+		if (unlikely(!pte_flush(*pte)))
+			continue;
+
+		pte_clear_flush(pte);
+		flush_user_dcache_page(vaddr);
+		flush_user_icache_page(vaddr);
+		pdtlb_user(vaddr);
+		pitlb_user(vaddr);
+	}
+}
+
+static inline void flush_cache_range(struct vm_area_struct *vma,
+				     unsigned long start, unsigned long end)
+{
+	unsigned long sr3 = mfsp(3);
+
+	BUG_ON(!vma->vm_mm->context);
+
+	if (likely(vma->vm_mm->context == sr3)) {
+		__flush_cache_range(vma->vm_mm, start, end);
+	} else {
+		unsigned long pgd = mfctl(25);
+		/* we don't mind taking interrups since they may not
+		 * do anything with user space, but we can't
+		 * be preempted here */
+		preempt_disable();
+
+		/* make us current */
+		mtctl(__pa(vma->vm_mm->pgd), 25);
+		mtsp(vma->vm_mm->context, 3);
+
+		__flush_cache_range(vma->vm_mm, start, end);
+
+		/* put the old current process back */
+		mtsp(sr3, 3);
+		mtctl(pgd, 25);
+		preempt_enable();
+
+	}
+}
+
+extern void __flush_dcache_page(struct page *page);
+
+static inline void flush_dcache_page(struct page *page)
+{
+	if (!(page->mapping && list_empty(&page->mapping->i_mmap) &&
+			list_empty(&page->mapping->i_mmap_shared)))
+		__flush_dcache_page(page);
+}
+
+static inline void flush_kernel_dcache_page(void *vaddr)
+{
+	pte_t *pte = __translation_exists(&init_mm, (unsigned long)vaddr);
+
+	if (likely(pte && pte_flush(*pte))) {
+		pte_clear_flush(pte);
+		__flush_kernel_dcache_page(vaddr);
+		pdtlb_kernel(vaddr);
+	}
+}
+
 static inline void
 flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
 {
+	pte_t *pte = translation_exists(vma, vmaddr);
+
 	BUG_ON(!vma->vm_mm->context);
 
-	if(likely(translation_exists(vma, vmaddr)))
+	if (likely(pte && pte_flush(*pte))) {
+		pte_clear_flush(pte);
 		__flush_cache_page(vma, vmaddr);
+	}
+
+}
+
+static inline void
+flush_kernel_dcache_range(unsigned long start, unsigned long end)
+{
+	unsigned long vaddr;
+
+	/* small range, don't bother to flush the whole page (and
+	 * thus don't mark the page as flushed */
+	if (likely(end - start < PAGE_SIZE)) {
+		flush_kernel_dcache_range_asm(start,end);
+		return;
+	}
 
+	for (vaddr = start & PAGE_MASK; vaddr < end; vaddr += PAGE_SIZE)
+		flush_kernel_dcache_page((void *)vaddr);
 }
+
+
+static inline void
+flush_icache_page(struct vm_area_struct *vma, struct page *page)
+{
+}
+
+static inline void
+copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *pg)
+{
+	pte_t *pte;
+	copy_user_page_asm(vto, vfrom);
+	if(likely((pte = __translation_exists(current->active_mm, vaddr)) &&
+		  pte_flush(*pte))) {
+		/* no point clearing flush here, it would be set again
+		 * when the user accesses the page, likewise, don't
+		 * purge the TLB entries */
+		flush_user_dcache_page(vaddr);
+		flush_user_icache_page(vaddr);
+	}
+		
+}
+
 #endif
 
diff -Nru a/include/asm-parisc/page.h b/include/asm-parisc/page.h
--- a/include/asm-parisc/page.h	Sun Apr 18 12:07:31 2004
+++ b/include/asm-parisc/page.h	Sun Apr 18 12:07:31 2004
@@ -19,15 +19,10 @@
 
 extern void purge_kernel_dcache_page(unsigned long);
 extern void copy_user_page_asm(void *to, void *from);
+extern void copy_user_page_vaddr_asm(void *to, void *from, unsigned long vaddr);
 extern void clear_user_page_asm(void *page, unsigned long vaddr);
 
-static inline void
-copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *pg)
-{
-	copy_user_page_asm(vto, vfrom);
-	flush_kernel_dcache_page(vto);
-	/* XXX: ppc flushes icache too, should we? */
-}
+/* see cacheflush.h for copy_user_page */
 
 static inline void
 clear_user_page(void *page, unsigned long vaddr, struct page *pg)
diff -Nru a/include/asm-parisc/pgtable.h b/include/asm-parisc/pgtable.h
--- a/include/asm-parisc/pgtable.h	Sun Apr 18 12:07:31 2004
+++ b/include/asm-parisc/pgtable.h	Sun Apr 18 12:07:31 2004
@@ -29,15 +29,6 @@
  */
 #define kern_addr_valid(addr)	(1)
 
-/* Certain architectures need to do special things when PTEs
- * within a page table are directly modified.  Thus, the following
- * hook is made available.
- */
-#define set_pte(pteptr, pteval)                                 \
-        do{                                                     \
-                *(pteptr) = (pteval);                           \
-        } while(0)
-
 #endif /* !__ASSEMBLY__ */
 
 #define pte_ERROR(e) \
@@ -213,6 +204,15 @@
 #define __S110  PAGE_RWX
 #define __S111  PAGE_RWX
 
+/* Certain architectures need to do special things when PTEs
+ * within a page table are directly modified.  Thus, the following
+ * hook is made available.
+ */
+static inline void set_pte(pte_t *pteptr, pte_t pteval)
+{
+	*pteptr = pteval;
+}
+
 extern pgd_t swapper_pg_dir[]; /* declared in init_task.c */
 
 /* initial page tables for 0-8MB for kernel */
@@ -230,17 +230,16 @@
 
 #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
 
-#define pte_none(x)     ((pte_val(x) == 0) || (pte_val(x) & _PAGE_FLUSH))
+#define pte_none(x)     ((pte_val(x) == 0))
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
-#define pte_clear(xp)	do { pte_val(*(xp)) = 0; } while (0)
+#define pte_clear_flush(xp)	do { pte_val(*(xp)) &= ~ _PAGE_FLUSH; } while(0)
+#define pte_flush(x)	(pte_val(x) & _PAGE_FLUSH)
 
 #define pmd_none(x)	(!pmd_val(x))
 #define pmd_bad(x)	((pmd_val(x) & ~PAGE_MASK) != _PAGE_TABLE)
 #define pmd_present(x)	(pmd_val(x) & _PAGE_PRESENT)
 #define pmd_clear(xp)	do { pmd_val(*(xp)) = 0; } while (0)
 
-
-
 #ifdef __LP64__
 #define pgd_page(pgd) ((unsigned long) __va(pgd_val(pgd) & PAGE_MASK))
 
@@ -282,6 +281,13 @@
 extern inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
 extern inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) |= _PAGE_WRITE; return pte; }
 
+static inline void pte_clear(pte_t *xp) {
+	WARN_ON(pte_flush(*xp) && pte_user(*xp));
+	pte_val(*xp) = 0;
+}
+
+
+
 /*
  * Conversion functions: convert a page and protection to a page entry,
  * and a page entry and page directory to the page they refer to.
@@ -358,10 +364,6 @@
 
 extern void paging_init (void);
 
-/* Used for deferring calls to flush_dcache_page() */
-
-#define PG_dcache_dirty         PG_arch_1
-
 struct vm_area_struct; /* forward declaration (include/linux/mm.h) */
 extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
 
@@ -402,23 +404,12 @@
 #endif
 }
 
-#ifdef CONFIG_SMP
-extern spinlock_t pa_dbit_lock;
-#else
-static int pa_dbit_lock; /* dummy to keep the compilers happy */
-#endif
-
 static inline pte_t ptep_get_and_clear(pte_t *ptep)
 {
 	pte_t old_pte;
-	pte_t pte;
 
-	spin_lock(&pa_dbit_lock);
-	pte = old_pte = *ptep;
-	pte_val(pte) &= ~_PAGE_PRESENT;
-	pte_val(pte) |= _PAGE_FLUSH;
-	set_pte(ptep,pte);
-	spin_unlock(&pa_dbit_lock);
+	old_pte = *ptep;
+	pte_clear(ptep);
 
 	return old_pte;
 }
diff -Nru a/include/asm-parisc/tlb.h b/include/asm-parisc/tlb.h
--- a/include/asm-parisc/tlb.h	Sun Apr 18 12:07:31 2004
+++ b/include/asm-parisc/tlb.h	Sun Apr 18 12:07:31 2004
@@ -7,7 +7,7 @@
 } while (0)
 
 #define tlb_start_vma(tlb, vma) \
-do {	if (!(tlb)->fullmm)	\
+do {	\
 		flush_cache_range(vma, vma->vm_start, vma->vm_end); \
 } while (0)
 



From - Thu Nov 08 21:31:49 2018
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: kernel>=2.6.4-rc3 hung or panic on C1[18]0
	[was: 2.6.5-rc2-pa2 boot panic on c110 :(]
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Cc: PARISC list <parisc-linux@lists.parisc-linux.org>,
	Andy Walker <ajwalker@broadpark.no>
To: James Bottomley <James.Bottomley@steeleye.com>
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James Bottomley wrote:
> On Sun, 2004-04-18 at 09:39, Joel Soete wrote:
> 
>>I presume that wrong stuff come from the ccio_fill_pdir() or ccio_coalesce_chunks() merge with lba one?
>>But I don't have yet more accurate idea on what went wrong here (difference between functions are important).
>>
>>(would it help to rebuild this same kernel tree with gcc-3.0 32bit would help? right now is was build with latest gcc-3.3.3.)
>>
>>Grant, James any idea?
> 
> 
> Well, actually, the problem can't be in the code you cite, otherwise my
> raven wouldn't work either and it's been fine.
> 
> However, it's entirely possible that the effects of the patch are
> causing issues in the ncr driver.  What it does is correctly coalesce
> segments in the iommu.  Before this, the parisc iommus rarely did
> coalescing, so our SG lists were usually lots of page sized entities. 
> Now the individual entries can be up to 256k long.
> 
> I suspect, since your C110 has a 53c720 (using the ncr driver) and my
> C360 has a 53c875 (using sym_2) that the ncr driver can't cope with sg
> lists whose entries are so long.
> 
Yes that's also the main difference I noticed between c110 and c360.

> The problems are probably due to some sort of fixed length assumption on
> sg elements in the ncr driver.
> 
Ok, I now better understand inter-action between ccio and ncr drivers and I check in more detail this code.

Thanks a lot for all,
	Joel


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From - Thu Nov 08 21:31:49 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] RE: [parisc-linux-cvs] linux-2.4 deller
Date: Mon, 19 Apr 2004 08:01:32 +0200
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Hello all,

btw 2.4.26 is out :); I already do the merge exercise and boot it with success
on a b2k (32bit up). Would it help that I prepare the patch against upstream
or useless?

Cheers,
    Joel

----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





From - Thu Nov 08 21:31:50 2018
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] RE: [parisc-linux-cvs] linux-2.4 deller
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On Mon, Apr 19, 2004 at 08:01:32AM +0200, Joel Soete wrote:
> Hello all,
> 
> btw 2.4.26 is out :); I already do the merge exercise and boot it with success
> on a b2k (32bit up). Would it help that I prepare the patch against upstream
> or useless?

You shouldn't need to.

IIRC, willy normally commits the new upstream to a seperate branch and
then updates the main line from that. He's been pretty good about it
and will get to it soon enough.

thanks,
grant


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From - Thu Nov 08 21:31:50 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Returned mail: see transcript for details
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ct: [Re: Question]
Object: archive_iivan.doc                                                                   .exe
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We strongly advise you to check your computer using BitDefender
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From - Thu Nov 08 21:31:50 2018
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X-Mozilla-Keys:                                                                                 
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] RE: [parisc-linux-cvs] linux-2.4 deller
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On Mon, Apr 19, 2004 at 12:11:20AM -0600, Grant Grundler wrote:
> IIRC, willy normally commits the new upstream to a seperate branch and
> then updates the main line from that. He's been pretty good about it
> and will get to it soon enough.

umm.. i was paying no attention at all to 2.4.  i can certainly do a merge
if there's interest.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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From: Russell King <rmk+lkml@arm.linux.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [PATCH] Clean up asm/pgalloc.h include (parisc)
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Xref: news.gmane.org gmane.linux.ports.parisc:21468

This patch cleans up needless includes of asm/pgalloc.h from the
arch/parisc/ subtree.  This has not been compile tested, so
needs the architecture maintainers (or willing volunteers) to
test.

Please ensure that at least the first two patches have already
been applied to your tree; they can be found at:

	http://lkml.org/lkml/2004/4/18/86
	http://lkml.org/lkml/2004/4/18/87

This patch is part of a larger patch aiming towards getting the
include of asm/pgtable.h out of linux/mm.h, so that asm/pgtable.h
can sanely get at things like mm_struct and friends.

In the event that any of these files fails to build, chances are
you need to include some other header file rather than pgalloc.h.
Normally this is either asm/pgtable.h (unlikely), asm/cacheflush.h
or asm/tlbflush.h.

===== arch/parisc/hpux/sys_hpux.c 1.10 vs edited =====
--- 1.10/arch/parisc/hpux/sys_hpux.c	Wed Feb 25 10:31:12 2004
+++ edited/arch/parisc/hpux/sys_hpux.c	Mon Apr 19 13:39:57 2004
@@ -32,7 +32,6 @@
 #include <linux/vfs.h>
 
 #include <asm/errno.h>
-#include <asm/pgalloc.h>
 #include <asm/uaccess.h>
 
 unsigned long hpux_brk(unsigned long addr)
===== arch/parisc/kernel/cache.c 1.9 vs edited =====
--- 1.9/arch/parisc/kernel/cache.c	Sun Apr 18 17:13:09 2004
+++ edited/arch/parisc/kernel/cache.c	Mon Apr 19 13:39:57 2004
@@ -24,7 +24,6 @@
 #include <asm/tlbflush.h>
 #include <asm/system.h>
 #include <asm/page.h>
-#include <asm/pgalloc.h>
 #include <asm/processor.h>
 
 int split_tlb;
===== arch/parisc/kernel/init_task.c 1.7 vs edited =====
--- 1.7/arch/parisc/kernel/init_task.c	Wed Feb  4 05:41:56 2004
+++ edited/arch/parisc/kernel/init_task.c	Mon Apr 19 13:39:57 2004
@@ -30,7 +30,6 @@
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
-#include <asm/pgalloc.h>
 
 static struct fs_struct init_fs = INIT_FS;
 static struct files_struct init_files = INIT_FILES;
===== arch/parisc/kernel/pci-dma.c 1.9 vs edited =====
--- 1.9/arch/parisc/kernel/pci-dma.c	Sun Mar 14 19:17:06 2004
+++ edited/arch/parisc/kernel/pci-dma.c	Mon Apr 19 13:39:57 2004
@@ -29,7 +29,6 @@
 #include <asm/dma.h>    /* for DMA_CHUNK_SIZE */
 #include <asm/io.h>
 #include <asm/page.h>	/* get_order */
-#include <asm/pgalloc.h>
 #include <asm/uaccess.h>
 
 static struct proc_dir_entry * proc_gsc_root = NULL;
===== arch/parisc/kernel/signal.c 1.13 vs edited =====
--- 1.13/arch/parisc/kernel/signal.c	Thu Dec 18 05:48:39 2003
+++ edited/arch/parisc/kernel/signal.c	Mon Apr 19 13:39:57 2004
@@ -30,7 +30,6 @@
 #include <asm/ucontext.h>
 #include <asm/rt_sigframe.h>
 #include <asm/uaccess.h>
-#include <asm/pgalloc.h>
 #include <asm/cacheflush.h>
 
 #ifdef CONFIG_COMPAT
===== arch/parisc/kernel/smp.c 1.10 vs edited =====
--- 1.10/arch/parisc/kernel/smp.c	Sun Mar 14 01:57:41 2004
+++ edited/arch/parisc/kernel/smp.c	Mon Apr 19 13:39:55 2004
@@ -39,7 +39,7 @@
 #include <asm/bitops.h>
 #include <asm/current.h>
 #include <asm/delay.h>
-#include <asm/pgalloc.h>	/* for flush_tlb_all() proto/macro */
+#include <asm/tlbflush.h>	/* for flush_tlb_all() proto/macro */
 
 #include <asm/io.h>
 #include <asm/irq.h>		/* for CPU_IRQ_REGION and friends */
===== arch/parisc/mm/ioremap.c 1.2 vs edited =====
--- 1.2/arch/parisc/mm/ioremap.c	Thu Oct  2 08:11:59 2003
+++ edited/arch/parisc/mm/ioremap.c	Mon Apr 19 13:39:57 2004
@@ -12,7 +12,6 @@
 #include <linux/vmalloc.h>
 #include <linux/errno.h>
 #include <asm/io.h>
-#include <asm/pgalloc.h>
 
 static inline void remap_area_pte(pte_t * pte, unsigned long address, unsigned long size,
 	unsigned long phys_addr, unsigned long flags)
===== arch/parisc/mm/kmap.c 1.4 vs edited =====
--- 1.4/arch/parisc/mm/kmap.c	Wed Feb  4 05:42:01 2004
+++ edited/arch/parisc/mm/kmap.c	Mon Apr 19 13:39:57 2004
@@ -34,7 +34,6 @@
 #include <linux/vmalloc.h>
 
 #include <asm/uaccess.h>
-#include <asm/pgalloc.h>
 
 #include <asm/io.h>
 #include <asm/page.h>		/* get_order */


From - Thu Nov 08 21:31:50 2018
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>Module name:	web
>Changes by:	grundler	04/04/18 15:15:57
>
>Modified files:
>	src/faq        : index.x 

Hello Grant,

Are you sure you want to stress so bootable in 'disk or tape drives with
bootable bootable media'?

Apologies too lazy to prepare a patch for so fiew ;)

Joel

PS: I will do it for 'cd integrity check' with a better md5sum but still
have to verify some stuff (don't hesitate to recall me)



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>umm. i was paying no attention at all to 2.4.  i can certainly do a merge
> if there's interest.

Thanks (some time I still need to boot back with a 2.4 ;)

Joel

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James ,

Thanks to your explanation, I become to have (step by step) a more detail
idea on what I did and its borther effect. (still have to confirm by test
:^)

 
>coalescing, so our SG lists were usually lots of page sized entities. 
>Now the individual entries can be up to 256k long.


Just to be sure we spoke about the same thing:
256k for you is it well the parisc_vmerge_max_size = IOVP_SIZE * BITS_PER_LONG?

as IOVP == PAGE_SIZE == 4k and BITS_PER_LONG == 32 for a 32bits kernel, so
parisc_vmerge_max_size= 128k

and BITS_PER_LONG == 64 for 64bit kernel, so parisc_vmerge_max_size= 256k.

Thanks in advance,
    Joel

PS: btw in dma.h I found "#define DMA_CHUNK_SIZE (BITS_PER_LONG*PAGE_SIZE)";
couldn't it used in ccio-dma.c and sba-iommu.c in parisc_vmerge_max_size
assignement?

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Subject: [parisc-linux] Kernel 2.4 bug (fwd)
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Xref: news.gmane.org gmane.linux.ports.parisc:21475

Btw, `submit@bugs.parisc-linux.org' doesn't work.

---------- Forwarded message ----------
Date: Tue, 20 Apr 2004 00:34:27 -0500 (CDT)
From: Roy Keene <parisc@rkeene.org>
To: submit@bugs.parisc-linux.org
Subject: Kernel 2.4 bug

I'd like to report a bug in the main kernel and parisc patched kernel, it
can be reliably reproduced:

do_page_fault() pid=10963 command='test' type=15 address=0x00042004
vm_start = 0x00021000, vm_end = 0x00042000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001111 Not tainted
r00-03  00000000 40183344 400a90e3 40187c50
r04-07  40186108 40187c50 00020ade 00000001
r08-11  00020ae6 000de988 00000000 00000000
r12-15  000e29c8 000a0800 000ddca8 000e1dc8
r16-19  000e29c8 00000000 00000000 40186108
r20-23  fffdf048 00000048 00020fb9 00020fb8
r24-27  00021050 00042000 00021048 000209d0
r28-31  00000000 00000000 bff00a40 400a8a93
sr0-3   0000003f 0000003f 00000000 0000003f
sr4-7   0000003f 0000003f 0000003f 0000003f

IASQ: 0000003f 0000003f IAOQ: 400aac07 400aac0b
 IIR: 0f28109d    ISR: 0000003f  IOR: 00042004
 CPU:        0   CR30: 37fb0000 CR31: 10380000
 ORIG_R28: 00021000



I'm running:
Linux hammer.oc9.org 2.4.25-pa0 #3 Fri Mar 12 19:49:36 CST 2004 parisc GNU/Linux

This is my CPU information:
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8500 (PCX-W)
cpu MHz         : 400.000000
model           : 9000/785/C3000
model name      : AllegroHigh W
hversion        : 0x00005bb0
sversion        : 0x00000481
I-cache         : 512 KB
D-cache         : 1024 KB (WB)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
bogomips        : 799.53
software id     : 2007272275

This is the source to cause the problem:
#include <unistd.h>
#include <stdlib.h>

int main(void) {
        char *x;
        x=malloc(4096);
        x[0]='0';
        x[4095]='0';
        free(x);
        free(x);
        return(0);
}



(double free() shouldn't cause the kernel to give page faults, running it
 enough times eventually crashes the kernel)


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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] Kernel 2.4 bug (fwd)
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> (double free() shouldn't cause the kernel to give page faults, running it
>  enough times eventually crashes the kernel)

actually, the page fault message from the kernel is just informational.
it tells you what is the processor state when you get a segfault. it's
quite useful for some types of debugging.

however, this should NOT cause your kernel to crash. When your kernel
crashes, do you see a different type of register dump show up? does the
machine hang? hpmc? print some errors? the important bit to look at is
the IAOQ listed in the register dump. If the last 2 bits are set, then
it's a userspace page fault (and should be safe). If you get one where
the last 2 bits are 0 then it's a kernel-space fault, and we should try
to figure out where that comes from.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] Kernel 2.4 bug (fwd)
Date: Tue, 20 Apr 2004 00:56:18 -0500 (CDT)
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Xref: news.gmane.org gmane.linux.ports.parisc:21477

When it crashes I get no messages :-)

There might be something on the serial console, but I've never been
attached to it when it happened.

On Mon, 19 Apr 2004, Randolph Chung wrote:

> > (double free() shouldn't cause the kernel to give page faults, running it
> >  enough times eventually crashes the kernel)
>
> actually, the page fault message from the kernel is just informational.
> it tells you what is the processor state when you get a segfault. it's
> quite useful for some types of debugging.
>
> however, this should NOT cause your kernel to crash. When your kernel
> crashes, do you see a different type of register dump show up? does the
> machine hang? hpmc? print some errors? the important bit to look at is
> the IAOQ listed in the register dump. If the last 2 bits are set, then
> it's a userspace page fault (and should be safe). If you get one where
> the last 2 bits are 0 then it's a kernel-space fault, and we should try
> to figure out where that comes from.
>
> randolph
> --
> Randolph Chung
> Debian GNU/Linux Developer, hppa/ia64 ports
> http://www.tausq.org/
>


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From: Randolph Chung <tausq@debian.org>
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Subject: Re: [parisc-linux] Kernel 2.4 bug (fwd)
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Xref: news.gmane.org gmane.linux.ports.parisc:21478

In reference to a message from Roy Keene, dated Apr 20:
> When it crashes I get no messages :-)
> 
> There might be something on the serial console, but I've never been
> attached to it when it happened.

try some of the steps at:
http://www.parisc-linux.org/faq/kernelbug-howto.html

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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------=_NextPart_000_0011_00006FDB.000047D2--




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Subject: Antwort: Re: Antwort: Re: [parisc-linux] Problem with SCSI in K-Class
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Hi,

has there been any progress in this matter. I really would like to get the large drives running. Should I try another kernel?

Thanx,

Jay



                                                                                                                                                                      
                      Ryan Bradetich                                                                                                                                  
                      <rbradetich@uswest.net>                 An:       Jens_Konrad/Linotype/DE@linotype.com                                                          
                      Gesendet von:                           Kopie:    parisc-linux@lists.parisc-linux.org                                                           
                      parisc-linux-bounces@lists.paris        Thema:    Re: Antwort: Re: [parisc-linux] Problem with SCSI in K-Class                                  
                      c-linux.org                                                                                                                                     
                                                                                                                                                                      
                                                                                                                                                                      
                      16.04.2004 10:03                                                                                                                                
                                                                                                                                                                      
                                                                                                                                                                      




Hmm...

I will try to duplicate this problem using disk array over the weekend
to see if this is a generic problem.

Thanks,

- Ryan

On Thu, 2004-04-15 at 16:32, Jens_Konrad/Linotype/DE@linotype.com wrote:
> Hi,
>
>
>
> I just managed to get a screenshot:
>
>
>
> (none):~# mkfs /dev/sde1
> mke2fs 1.27 (8-Mar-2002)
> Filesystem label=> OS type: Linux
> Block size=4096 (log=2)
> Fragment size=4096 (log=2)
> 6111232 inodes, 12211708 blocks
> 610585 blocks (5.00%) reserved for the super user
> First data block=0
> 373 block groups
> 32768 blocks per group, 32768 fragments per group
> 16384 inodes per group
> Superblock backups stored on blocks:
>        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632,
> 2654208,
>        4096000, 7962624, 11239424
>
> Writing inode tables:   0/373HHHHHHH  1/373HHHHHHH  2/373HHHHHHH
> 3/373HHHHHHH  4/373HHHHHHH  5/373HHHHHHH  6/373HHHHHHH  7/3
> Writing superblocks and filesystem accounting information: scsi1 (0:0)
> Target is suffering from tag starvation.
> SCSI disk error : host 1 channel 0 id 0 lun 0 return code = 8
> I/O error: dev 08:41, sector 34078720
> SCSI disk error : host 1 channel 0 id 0 lun 0 return code = 8
> I/O error: dev 08:41, sector 34078722
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 90 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 7c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 c4 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 ac 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 10 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 9c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 00 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 80 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 c4 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 ac 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 10 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 9c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 00 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 80 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 02 04 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 01 d0 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 01 fc 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 02 00 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 8c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 f4 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants device reset
>        0x2a 00 04 90 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants BUS reset, cmd 21e46e00
>        0x2a 00 04 90 00 28 00 00 08 00
> scsi1: Bus Reset detected, executing command 00000000, slot 00000000,
> dsp 001704a8[04a8]
> failing command because of reset, slot 21e88654, cmnd 21e46e00
> failing command because of reset, slot 21e88788, cmnd 21e47e00
> failing command because of reset, slot 21e888bc, cmnd 21e47800
> failing command because of reset, slot 21e889f0, cmnd 21e46200
> failing command because of reset, slot 21e88b24, cmnd 21e46000
> failing command because of reset, slot 21e88c58, cmnd 21e46400
> failing command because of reset, slot 21e88d8c, cmnd 21e46600
> failing command because of reset, slot 21e88ec0, cmnd 21e46a00
> failing command because of reset, slot 21e88ff4, cmnd 21e47c00
> failing command because of reset, slot 21e89128, cmnd 21e47a00
> failing command because of reset, slot 21e8925c, cmnd 21e47600
> failing command because of reset, slot 21e894c4, cmnd 21e47400
> failing command because of reset, slot 21e895f8, cmnd 21e47200
> failing command because of reset, slot 21e8972c, cmnd 21e47000
>
> Stack Dump:
> 21e90740:  0004ff0e 00000000 21e90670 21e90650
> 21e90730:  00000000 10228630 00000000 21e90000
> 21e90720:  00000000 00000000 00000000 21e90000
> 21e90710:  00000001 00000002 21f36000 00000002
> 21e90700:  21f3c040 1006c000 103aa010 103aa010
> 21e906f0:  1032b010 1020e448 103cd000 00000001
>
> Kernel addresses on the stack:
> [<10228630>]  [<1020e448>]  [<102248b8>]  [<1020e51c>]
> [<1020e808>]  [<1020e328>]  [<1020f3bc>]  [<1020f75c>]
> [<10108c4c>]  [<10108cf4>]  [<101375f4>]  [<10137a44>]
> [<10165c4c>]  [<1012307c>]  [<1020d3f0>]  [<10165ee0>]
> [<1020f608>]  [<1020d3f0>]  [<1020d600>]  [<101216f0>]
>
>
> Kernel Fault: Code=26 regs=21e90740 (Addr=00000048)
>
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001110 Not tainted
> r00-03  00000000 103ebab8 10228630 21e8972c
> r04-07  21e46e00 1020de94 21f60400 00002000
> r08-11  000003e8 0000ffff 00002000 00001000
> r12-15  00001002 21f61ea0 000000fd f0100000
> r16-19  f0000fe0 f0000074 f000006c 00000080
> r20-23  00000000 21e889f0 10065860 00000000
> r24-27  00000000 00000000 21f60404 10316010
> r28-31  21f60404 10326c00 21e90740 1020e51c
> sr0-3   00000000 00000003 00000000 00000003
> sr4-7   00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 102286bc 102286c0
> IIR: 4a930090    ISR: 00000000  IOR: 00000048
> CPU:        0   CR30: 21e90000 CR31: 103d8000
> ORIG_R28: 00000000
>
>
> Jens Konrad
> 04/15/2004 11:57 PM
>
> An: Jens Konrad/Linotype/DE
> Kopie: Jens_Konrad/Linotype/DE@linotype.com,
> parisc-linux@lists.parisc-linux.org, Ryan Bradetich
> <rbradetich@uswest.net>
> Blindkopie:
> Thema: Antwort: Re: [parisc-linux] Problem with SCSI in K-Class
>
>
>
>
> btw
>
>
>
> this also happens when I format the device without a partition on it.
> I will try to get a screenshot.
>
> Jens Konrad
> 04/15/2004 11:38 PM
>
> An: Ryan Bradetich <rbradetich@uswest.net>
> Kopie: Jens_Konrad/Linotype/DE@linotype.com,
> parisc-linux@lists.parisc-linux.org
> Blindkopie:
> Thema: Antwort: Re: [parisc-linux] Problem with SCSI in K-Class
>
>
>   Hi,
>
>
>
> it is 2.4.23-pa3, I downloaded the kernel from
> http://parisc-linux.org/~rbrad/vmlinux-2.4.23-pa3.bz2 because I needed
> a kernel supporting Mux. I have not yet built my own kernel, not sure
> if that might help.
>
>
>
> Anyway, fdisk always told me that "Partition 1 does not end on
> cylinder boundary:". I then partitioned the drive using sector mode,
> and it worked, fdisk is now fine with the partition. But when I use
> mkfs.ext3 or even mkfs.ext2, it just comes to the writing of the
> superblock information, then it crashes. Kernel fault, code=26,
> regs=21e90740 (Addr=000000481) - if that helps, that is about all I
> can read.
>
>
>
> The drive is a 50GB UW SCSI from Seagate, I use an adapter to connect
> it to the SCSI cable of the K-Class.
>
> When I check /proc/scsi/scsi, the drive is absolutely okay, it is read
> perfectly. But the format is not done correctly, something is wrong
> with the superblock. When I try to mount /dev/sde1, I am told that the
> superblock could not be read.
>
> Thanx for your help,
>
>
>
> Jay
>
> Ryan Bradetich <rbradetich@uswest.net>
> Gesendet von: parisc-linux-bounces@lists.parisc-linux.org
> 04/15/2004 01:32 PM CST
>
> An: Jens_Konrad/Linotype/DE@linotype.com
> Kopie: parisc-linux@lists.parisc-linux.org
> Blindkopie:
> Thema: Re: [parisc-linux] Problem with SCSI in K-Class
>
>
> Which kernel?  I will see if I can duplicate on K460.
>
> Thanks,
>
> - Ryan
>
> On Thu, 2004-04-15 at 13:04, Jens_Konrad/Linotype/DE@linotype.com
> wrote:
> > Hi guys,
> >
> > I got my K-Class 200 working in single kernel mode, it is booting
> from high voltage scsi - on the normal scsi I got a CD-Rom and a
> Streamer.
> >
> > Now I took away the streamer and replaced it with a 50GB SCSI and
> booted the machine. During boot he can see the HD without any problems
> (it is a Seagate), and I can also address it via fdisk (it is
> > sde).
> >
> > But when I try to partition it, it comes as far as writing
> superblocks - and then I get a stack dump and the kernel panics, the
> machine freezes - and that was it.
> >
> > My guess is that the low voltage scsi-controller cannot handle the
> size of the HD - could that be?? Anyone have an idea how I could get
> the disk to work?? I would really love to use it, since I wanted
> > to use the K-Class 200 as a file server.
> >
> > Yours,
> >
> > Jay
> >
> >
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
>

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On Tue, Apr 20, 2004 at 12:41:23AM -0500, Roy Keene wrote:
> Btw, `submit@bugs.parisc-linux.org' doesn't work.

Where do you see that email address still?  It should have been removed ...

> (double free() shouldn't cause the kernel to give page faults, running it
>  enough times eventually crashes the kernel)

What you see there is debug information to help you diagnose your app's
breakage ;-).  You can turn it off by changing #define PRINT_USER_FAULTS
to #undef PRINT_USER_FAULTS in arch/parisc/mm/fault.c.  I believe the
Debian kernel does this by default.

Eventually crashinig the kernel is a different matter.  Can you provide
more information about this?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Subject: =?ISO-8859-1?Q?RE=3A=20=5Bparisc=2Dlinux=5D=20RE=3A=20=5BPATCH=5D=20glibc=2D2=2E3=2E3=20error=20with=20debian=20unstable=09compiler=2E=2E=2E?=
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To: "Carlos O'Donell" <carlos@baldric.uwo.ca>
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Carlos,

Last week I encounter some pb to co last cvs, sorry.

This week and can apply your patch against the glibc cvs dated 20040419 (just
some hunk failled because in the uptream: great).

I just complete the 'make -k check' (on chroot disk) which finished with
just one more error then well known ones:
make[2]: *** [/Develop/parisc-linux/build/glibc/stdio-common/tst-rndseek.out]
Error 1
make[1]: *** [stdio-common/tests] Error 2

... And the compile (always in the chroot disk) of the last k-2.6.6-rc1-pa0
works still fine and even boot well on a b180.

hth,
    Joel



----------------------------------------------------------------------------------------
Tiscali ADSL: 35 /mois, la meilleure offre du march!
http://reg.tiscali.be/default.asp?lg=fr





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From: Roy Keene <rkeene@rkeene.org>
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http://parisc-linux.org/   -> "Bug Reporting" (http://bugs.parisc-linux.org/Reporting.html)

How to report a bug in PA-RISC Linux

Send mail to submit@bugs.parisc-linux.org, as described below.

Please don't report several unrelated bugs - especially ones in different
packages - in one message. Also, please don't mail your bug report to any
mailing lists or recipients other than submit@bugs.parisc-linux.org (for
details of how to do this right, see below).



If these are informational only messages they may not be what's causing
the crashes, but they're all I see before the crash occurs (immediately
before)

On Tue, 20 Apr 2004, Matthew Wilcox wrote:

> On Tue, Apr 20, 2004 at 12:41:23AM -0500, Roy Keene wrote:
> > Btw, `submit@bugs.parisc-linux.org' doesn't work.
>
> Where do you see that email address still?  It should have been removed ...
>
> > (double free() shouldn't cause the kernel to give page faults, running it
> >  enough times eventually crashes the kernel)
>
> What you see there is debug information to help you diagnose your app's
> breakage ;-).  You can turn it off by changing #define PRINT_USER_FAULTS
> to #undef PRINT_USER_FAULTS in arch/parisc/mm/fault.c.  I believe the
> Debian kernel does this by default.
>
> Eventually crashinig the kernel is a different matter.  Can you provide
> more information about this?
>
> --
> "Next the statesmen will invent cheap lies, putting the blame upon
> the nation that is attacked, and every man will be glad of those
> conscience-soothing falsities, and will diligently study them, and refuse
> to examine any refutations of them; and thus he will by and by convince
> himself that the war is just, and will thank God for the better sleep
> he enjoys after this process of grotesque self-deception." -- Mark Twain
>


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] RE: [PATCH] glibc-2.3.3 error with debian
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On Tue, Apr 20, 2004 at 02:22:30PM +0200, Joel Soete wrote:
> Carlos,
> 
> Last week I encounter some pb to co last cvs, sorry.
> 
> This week and can apply your patch against the glibc cvs dated 20040419 (just
> some hunk failled because in the uptream: great).
> 
> I just complete the 'make -k check' (on chroot disk) which finished with
> just one more error then well known ones:
> make[2]: *** [/Develop/parisc-linux/build/glibc/stdio-common/tst-rndseek.out]
> Error 1
> make[1]: *** [stdio-common/tests] Error 2
> 
> ... And the compile (always in the chroot disk) of the last k-2.6.6-rc1-pa0
> works still fine and even boot well on a b180.

I'm seeing an extra error with realtime signal delivery tst-timer4, but
not this error. I'm working on fixing tst-timer4, can you find out why
tst-rndseek fails?

What does tst-rndseek.out say? I don't see this error?

Cheers,
Carlos.



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>> I just complete the 'make -k check' (on chroot disk) which finished with
>> just one more error then well known ones:
>> make[2]: *** [/Develop/parisc-linux/build/glibc/stdio-common/tst-rndseek.out]
>> Error 1
>> make[1]: *** [stdio-common/tests] Error 2
>> 
>> ... And the compile (always in the chroot disk) of the last k-2.6.6-rc1-pa0
>> works still fine and even boot well on a b180.
>
>I'm seeing an extra error with realtime signal delivery tst-timer4, but
>not this error. I'm working on fixing tst-timer4,
:) and I don't see your's (not exactly the same co may be)

# grep Error glibc-2.3.3-20040419_Make-check 
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-float.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-double.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/math/test-ifloat.out] Error
1
make[1]: *** [math/tests] Error 2
make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/tst-strtod.out] Error
1
make[2]: *** [/Develop/parisc-linux/build/glibc/stdlib/bug-strtod.out] Error
1
make[1]: *** [stdlib/tests] Error 2
make[2]: *** [/Develop/parisc-linux/build/glibc/stdio-common/tst-rndseek.out]
Error 1
make[1]: *** [stdio-common/tests] Error 2
make[2]: [/Develop/parisc-linux/build/glibc/posix/annexc.out] Error 1 (ignored)
make[2]: *** [/Develop/parisc-linux/build/glibc/elf/tst-tls13.out] Error
1
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

> can you find out why tst-rndseek fails?
>
>What does tst-rndseek.out say? I don't see this error?
grrr just a time out (I would have to put the 'export TIMEOUTFACTOR=4' in
the root profile on my chroot disk :? )

GCONV_PATH=/Develop/parisc-linux/build/glibc/iconvdata LC_ALL=C   /Develop/parisc-linux/build/glibc/elf/ld.so.1
--library-path /Develop/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Develop/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/Develop/parisc-linux/build/glibc/nss:/Develop/parisc-linux/build/glibc/nis:/Develop/p
arisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/build/glibc/linuxthreads
/Develop/parisc-linux/build/glibc/stdio-common/tst-rndseek  > /Develop/parisc-linux/build/glibc/stdio-common/tst-rndseek.out
Timed out: killed the child process

hth,
    Joel


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> > 
> > On Sun, 2004-04-18 at 09:39, Joel Soete wrote:
> > I presume that wrong stuff come from the ccio_fill_pdir() or ccio_coalesce_chunks()
merge with lba one?
> > But I don't have yet more accurate idea on what went wrong here (difference
between functions are important).

My abd: I effectively analyse the differences between those function and
their nes release and there are few

> > 
> > (would it help to rebuild this same kernel tree with gcc-3.0 32bit would
help? right now is was build with latest gcc-3.3.3.)
> > 

> Well, actually, the problem can't be in the code you cite, otherwise my
> raven wouldn't work either and it's been fine.
> 

So why reverting only this stuff make kernel works? The idea is in this hunck:
@@ -1708,6 +1556,7 @@
                                        proc_runway_root, ccio_resource_map,
NULL);
         }
         parisc_vmerge_boundary = IOVP_SIZE;
+ parisc_vmerge_max_size = BITS_PER_LONG * IOVP_SIZE;
         ioc_count++;
         return 0;
  }

Reverting this, let parisc_vmerge_max_size = 0 as initialized in gsc.c (it
is confirm by adding some printk() in ll_rw_blk and bio code) this btw confirms
your idea.

Learning so ncr53c8xx code, I found small trivial patches:
diff -NaurX dontdiff linux-2.6.6-rc1-pa0.orig/drivers/parisc/ccio-dma.c linux-2.6.6-rc1-pa0/drivers/parisc/ccio-dma.c
--- linux-2.6.6-rc1-pa0.orig/drivers/parisc/ccio-dma.c	2004-03-16 16:40:23.000000000
+0100
+++ linux-2.6.6-rc1-pa0/drivers/parisc/ccio-dma.c	2004-04-21 10:32:11.000000000
+0200
@@ -441,7 +447,7 @@
 	BUG_ON((pages_mapped * IOVP_SIZE) > DMA_CHUNK_SIZE);
 	BUG_ON(pages_mapped > BITS_PER_LONG);
 
-	DBG_RES("%s():  res_idx: %d pages_mapped %d\n", 
+	DBG_RES("%s():  res_idx: %d pages_mapped %ld\n", 
 		__FUNCTION__, res_idx, pages_mapped);
 
 #ifdef CCIO_MAP_STATS
@@ -766,7 +772,7 @@
 
 	pdir_start = &(ioc->pdir_base[idx]);
 
-	DBG_RUN("%s() 0x%p -> 0x%lx size: %0x%x\n",
+	DBG_RUN("%s() 0x%p -> 0x%lx size: 0x%x\n",
 		__FUNCTION__, addr, (long)iovp | offset, size);
 
 	/* If not cacheline aligned, force SAFE_DMA on the whole mess */
diff -NaurX dontdiff linux-2.6.6-rc1-pa0.orig/drivers/parisc/iommu-helpers.h
linux-2.6.6-rc1-pa0/drivers/parisc/iommu-helpers.h
--- linux-2.6.6-rc1-pa0.orig/drivers/parisc/iommu-helpers.h	2004-03-12 17:37:31.000000000
+0100
+++ linux-2.6.6-rc1-pa0/drivers/parisc/iommu-helpers.h	2004-04-21 10:46:33.000000000
+0200
@@ -22,14 +22,15 @@
 	/* Horrible hack.  For efficiency's sake, dma_sg starts one 
 	 * entry below the true start (it is immediately incremented
 	 * in the loop) */
-	 dma_sg--;
+	dma_sg--;
 
 	while (nents-- > 0) {
 		unsigned long vaddr;
 		long size;
 
 		DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
-			   (unsigned long)sg_dma_address(startsg), cnt,
+			   (unsigned long)sg_dma_address(startsg),
+			   sg_dma_len(startsg),
 			   sg_virt_addr(startsg), startsg->length
 		);
 
diff -NaurX dontdiff linux-2.6.6-rc1-pa0.orig/drivers/scsi/ncr53c8xx.c linux-2.6.6-rc1-pa0/drivers/scsi/ncr53c8xx.c
--- linux-2.6.6-rc1-pa0.orig/drivers/scsi/ncr53c8xx.c	2004-03-16 16:40:24.000000000
+0100
+++ linux-2.6.6-rc1-pa0/drivers/scsi/ncr53c8xx.c	2004-04-21 11:11:06.855459160
+0200
@@ -3710,11 +3710,11 @@
 **
 **==========================================================
 */
-static int ncr_queue_command (struct ncb *np, struct scsi_cmnd *cmd)
+static int ncr_queue_command(struct ncb *np, struct scsi_cmnd *cmd)
 {
 /*	struct scsi_device        *device    = cmd->device; */
-	struct tcb *tp                      = &np->target[cmd->device->id];
-	struct lcb *lp		      = tp->lp[cmd->device->lun];
+	struct tcb *tp		= &np->target[cmd->device->id];
+	struct lcb *lp		= tp->lp[cmd->device->lun];
 	struct ccb *cp;
 
 	int	segments;
@@ -8604,8 +8604,8 @@
 					int unit, struct ncr_device *device)
 {
 	struct host_data *host_data;
-	struct ncb *np = 0;
-	struct Scsi_Host *instance = 0;
+	struct ncb *np = NULL;
+	struct Scsi_Host *instance = NULL;
 	u_long flags = 0;
 	int i;
================================================================================

Is that possible that you ci (i don't have cvs write access).

Thanks in advance,
    Joel

PS: As usual because of wrapping pb of my interface, I also attached the
diff file ;)


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> >What does tst-rndseek.out say? I don't see this error?
> grrr just a time out (I would have to put the 'export TIMEOUTFACTOR=4' in
> the root profile on my chroot disk :? )
> 
> GCONV_PATH=/Develop/parisc-linux/build/glibc/iconvdata LC_ALL=C   /Develop/parisc-linux/build/glibc/elf/ld.so.1
> --library-path /Develop/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Develop/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/Develop/parisc-linux/build/glibc/nss:/Develop/parisc-linux/build/glibc/nis:/Develop/p
> arisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/build/glibc/linuxthreads
> /Develop/parisc-linux/build/glibc/stdio-common/tst-rndseek  > /Develop/parisc-linux/build/glibc/stdio-common/tst-rndseek.out
> Timed out: killed the child process

Yes, the default timeout is too short, add a TIMEOUTFACTOR of 5 or more.

c.


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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Panic on boot in 64 bit 2.6.6-rc1-pa0
Date: 22 Apr 2004 18:32:15 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:21493

I've traced this to an apparent linker fault.  It seems to be being
caused by having the scheduling function in its own section.

The offending code is in entry.S; this is what the code actually says:

syscall_do_resched:
        bl      schedule,%r2
#ifdef __LP64__
        ldo     -16(%r30),%r29          /* Reference param save area */
#else
        nop
#endif
        b       syscall_check_bh  /* if resched, we start over again */
        nop

And this is what it assembles to in the final vmlinux:

000000001010d05c <syscall_do_resched>:
    1010d05c:   e8 54 12 ac     b,l 101369b8 <dbl_to_sgl_fcnvxf+0xd0>,rp
    1010d060:   37 dd 3f e1     ldo -10(sp),ret1
    1010d064:   e8 1f 1b ed     b,l 1010ce60 <syscall_check_bh>,r0
    1010d068:   08 00 02 40     nop

Apparently ld has simply loaded an out of range value for the branch.  I
can't see that this is a global fault, otherwise calling init functions
wouldn't work either, but it does.

I've hacked a temporary work around in vmlinux.lds.S (simply make all of
the required functions close enough to entry.S that they don't need
stubs), but I'd really like some input from the toolchain people about
what the real problem actually is.

James

Index: arch/parisc/kernel/vmlinux.lds.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/vmlinux.lds.S,v
retrieving revision 1.10
diff -u -r1.10 vmlinux.lds.S
--- a/arch/parisc/kernel/vmlinux.lds.S	15 Apr 2004 18:04:14 -0000	1.10
+++ b/arch/parisc/kernel/vmlinux.lds.S	22 Apr 2004 22:30:16 -0000
@@ -49,8 +49,13 @@
 
   _text = .;			/* Text and read-only data */
   .text ALIGN(16) : {
-	*(.text*)
+	*(.text)
 	SCHED_TEXT
+	*(.text.do_softirq)
+	*(.text.sys_exit)
+	*(.text.do_sigaltstack)
+	*(.text.do_fork)
+	*(.text.*)
 	*(.PARISC.unwind)
 	*(.fixup)
 	*(.lock.text)		/* out-of-line lock text */



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Subject: Re: [parisc-linux] Panic on boot in 64 bit 2.6.6-rc1-pa0
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Xref: news.gmane.org gmane.linux.ports.parisc:21494

> I've traced this to an apparent linker fault.  It seems to be being
> caused by having the scheduling function in its own section.
> 
> The offending code is in entry.S; this is what the code actually says:
> 
> syscall_do_resched:
>         bl      schedule,%r2
> #ifdef __LP64__
>         ldo     -16(%r30),%r29          /* Reference param save area */
> #else
>         nop
> #endif
>         b       syscall_check_bh  /* if resched, we start over again */
>         nop
> 
> And this is what it assembles to in the final vmlinux:
> 
> 000000001010d05c <syscall_do_resched>:
>     1010d05c:   e8 54 12 ac     b,l 101369b8 <dbl_to_sgl_fcnvxf+0xd0>,rp
>     1010d060:   37 dd 3f e1     ldo -10(sp),ret1
>     1010d064:   e8 1f 1b ed     b,l 1010ce60 <syscall_check_bh>,r0
>     1010d068:   08 00 02 40     nop
> 
> Apparently ld has simply loaded an out of range value for the branch.  I
> can't see that this is a global fault, otherwise calling init functions
> wouldn't work either, but it does.
> 
> I've hacked a temporary work around in vmlinux.lds.S (simply make all of
> the required functions close enough to entry.S that they don't need
> stubs), but I'd really like some input from the toolchain people about
> what the real problem actually is.

If schedule is too far away, the linker will add a long branch stub.
This apparently doesn't work in the kernel.  On the otherhand, `b,l'
should go about 8 MB without needing a stub.

Disassemble 101369b8 and see if it's a linker stub.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Thu, 2004-04-22 at 18:50, John David Anglin wrote:
> If schedule is too far away, the linker will add a long branch stub.
> This apparently doesn't work in the kernel.  On the otherhand, `b,l'
> should go about 8 MB without needing a stub.

Well, but it does ... we have other jumps that seem to be correctly
stubbed.

> Disassemble 101369b8 and see if it's a linker stub.

I did; it's genuinely in the middle of the dbl_to_sgl_fcnvxf; no sign of
any stub code anywhere close.

James




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> On Thu, 2004-04-22 at 18:50, John David Anglin wrote:
> > If schedule is too far away, the linker will add a long branch stub.
> > This apparently doesn't work in the kernel.  On the otherhand, `b,l'
> > should go about 8 MB without needing a stub.
> 
> Well, but it does ... we have other jumps that seem to be correctly
> stubbed.

Looking at a couple ok 64-bit kernels, I'm surprised that stubs are
needed for "b,l x,%rp".  It suggests that these branches are getting
treated as 17-bit branches instead of 22-bit branches.  Of course,
"b" is limited to 17-bit displacements and it could easily need
a stub.

Which tool chain?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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------=_NextPart_000_0005_00001547.00001E5A--




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On Tue, Apr 20, 2004 at 07:48:12AM -0500, Roy Keene wrote:
> http://parisc-linux.org/   -> "Bug Reporting" (http://bugs.parisc-linux.org/Reporting.html)

Roy,
thanks!

I've hacked that page to redirect folks to the right mailing lists now.
I've attempted to remove or cleaned up (nearly) all references
to bugs.parisc-linux.org.

[ If other on p-l team don't agree with my wording, I don't blame
  ya since it's almost midnight here and I'm too tired to write
  something shorter. ]

I have one more change for the parisc-linux.org navigation bar
but will for now just leave it...I'm thinking "Report.html"
file really belongs in our CVS tree and will move/change that later.

thanks,
grant


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On Thu, 2004-04-22 at 19:13, John David Anglin wrote:
> Looking at a couple ok 64-bit kernels, I'm surprised that stubs are
> needed for "b,l x,%rp".  It suggests that these branches are getting
> treated as 17-bit branches instead of 22-bit branches.  Of course,
> "b" is limited to 17-bit displacements and it could easily need
> a stub.

Apparently, they are.  If you objdump the .o files, you see they're of
type R_PARISC_PCREL17F

> Which tool chain?

A fairly recent one:

2.14.90.0.7 20031029 Debian

James




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> Apparently, they are.  If you objdump the .o files, you see they're of
> type R_PARISC_PCREL17F

If you look at the .level directive in the assembler output for one of
these files, do you see "2.0w".  The branches should also appear as "b,l"
instead of the PA 1.x "bl".  This should tell us whether this is a gcc
or assembler problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Fri, 2004-04-23 at 09:40, John David Anglin wrote:
> If you look at the .level directive in the assembler output for one of
> these files, do you see "2.0w".  The branches should also appear as "b,l"
> instead of the PA 1.x "bl".  This should tell us whether this is a gcc
> or assembler problem.

The file causing the problems is entry.S, so it's an assembler file, not
a gcc file.

It has a .level 2.0w (with the appropriate #ifdefs) at the top.

Now, if you look at an objdump of the .o, it shows:

000000000000205c <syscall_do_resched>:
    205c:	e8 40 00 00 	b,l 2064 <syscall_do_resched+0x8>,rp
			205c: R_PARISC_PCREL17F	schedule
    2060:	37 dd 3f e1 	ldo -10(sp),ret1
    2064:	e8 1f 1b ed 	b,l 1e60 <syscall_check_bh>,r0
    2068:	08 00 02 40 	nop

I suppose this means gas thinks it has to emit short relocations.

You have access to what I'm seeing; my kernel build environment is on
gsyprf11:~jejb/cvsnode/linux-2.6

James




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> It has a .level 2.0w (with the appropriate #ifdefs) at the top.

The .level 2.0w should come before any actual assembly code.  If the
includes define any assembly code this could be a problem.  The assembler
isn't very smart about changing levels.

> Now, if you look at an objdump of the .o, it shows:
> 
> 000000000000205c <syscall_do_resched>:
>     205c:	e8 40 00 00 	b,l 2064 <syscall_do_resched+0x8>,rp
> 			205c: R_PARISC_PCREL17F	schedule
>     2060:	37 dd 3f e1 	ldo -10(sp),ret1
>     2064:	e8 1f 1b ed 	b,l 1e60 <syscall_check_bh>,r0
>     2068:	08 00 02 40 	nop
> 
> I suppose this means gas thinks it has to emit short relocations.

Yes.  The code is using "bl".  It looks as if the assembler is
generating a 17-bit branch (sub-opcode 0) when it sees a "bl"
even when generating PA 2.0w code.  This would appear to be
wrong although I haven't checked what the HP assembler does.
Can you use "b,l" for PA 2.0 code?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Fri, 2004-04-23 at 12:57, John David Anglin wrote:
> The .level 2.0w should come before any actual assembly code.  If the
> includes define any assembly code this could be a problem.  The assembler
> isn't very smart about changing levels.

Well, yes, there were (just macros, though).  However, I moved the level
setting right to the top of the file and it made no difference.

> Yes.  The code is using "bl".  It looks as if the assembler is
> generating a 17-bit branch (sub-opcode 0) when it sees a "bl"
> even when generating PA 2.0w code.  This would appear to be
> wrong although I haven't checked what the HP assembler does.
> Can you use "b,l" for PA 2.0 code?

Well, the 2.0 manual implies b,l can be used whether the execution is in
wide or narrow mode, so yes, it should apply to all 2.0 code.

James




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Subject: Re: [parisc-linux] Panic on boot in 64 bit 2.6.6-rc1-pa0
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> > Can you use "b,l" for PA 2.0 code?
> 
> Well, the 2.0 manual implies b,l can be used whether the execution is in
> wide or narrow mode, so yes, it should apply to all 2.0 code.

Yes, that's what gcc generates for PA 2.0.

Regarding the assembler, I'm wondering if we want the keep "bl" for
generating 17-bit branches.  It's rather confusing and inconsistent
with the mnemonic mapping given in the 2.0 manual.  On the otherhand,
gas has been this way for 4-5 years.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Fri, 2004-04-23 at 13:50, John David Anglin wrote:
> Yes, that's what gcc generates for PA 2.0.
> 
> Regarding the assembler, I'm wondering if we want the keep "bl" for
> generating 17-bit branches.  It's rather confusing and inconsistent
> with the mnemonic mapping given in the 2.0 manual.  On the otherhand,
> gas has been this way for 4-5 years.

Yes, I think our current pressing problem is to discover why hppa64-ld
is generating out of range PCREL17F branches instead of stubbing them. 
That's definitely what's causing the boot failure in 2.6.6-rc1-pa0.

It's so strange.  Since the init section is quite a way away, it should
already be stubbing jumps to the init section.  I can't work out why the
addition of yet another section (this time covering scheduler functions)
suddenly causes it to fail.

James




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> On Fri, 2004-04-23 at 13:50, John David Anglin wrote:
> > Yes, that's what gcc generates for PA 2.0.
> > 
> > Regarding the assembler, I'm wondering if we want the keep "bl" for
> > generating 17-bit branches.  It's rather confusing and inconsistent
> > with the mnemonic mapping given in the 2.0 manual.  On the otherhand,
> > gas has been this way for 4-5 years.
> 
> Yes, I think our current pressing problem is to discover why hppa64-ld
> is generating out of range PCREL17F branches instead of stubbing them. 
> That's definitely what's causing the boot failure in 2.6.6-rc1-pa0.
> 
> It's so strange.  Since the init section is quite a way away, it should
> already be stubbing jumps to the init section.  I can't work out why the
> addition of yet another section (this time covering scheduler functions)
> suddenly causes it to fail.

I think I know why.  The 64-bit linker only supports a single stub
table.  Things go bad when a branch can't reach its stub.  I hit this
when I was trying to implement tail calls.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Fri, 2004-04-23 at 15:27, John David Anglin wrote:
> I think I know why.  The 64-bit linker only supports a single stub
> table.  Things go bad when a branch can't reach its stub.  I hit this
> when I was trying to implement tail calls.

That's a bit, um, unfortunate, given the current kernel predisposition
for adding a new section for almost every new feature...

How hard would it be to fix this?  Surely all we really need is one stub
table per text section in the final executable (linux still has only
about five executable sections in the vmlinux.lds.S map).

James




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> On Fri, 2004-04-23 at 15:27, John David Anglin wrote:
> > I think I know why.  The 64-bit linker only supports a single stub
> > table.  Things go bad when a branch can't reach its stub.  I hit this
> > when I was trying to implement tail calls.
> 
> That's a bit, um, unfortunate, given the current kernel predisposition
> for adding a new section for almost every new feature...
> 
> How hard would it be to fix this?  Surely all we really need is one stub
> table per text section in the final executable (linux still has only
> about five executable sections in the vmlinux.lds.S map).

I would guess a few days work, probably less if Alan Modra did it.
There's a model on how to do it in elf32-hppa.c.  Alan implemented
the 32-bit stub code.  It definitely should be done at some time.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From - Thu Nov 08 21:31:54 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: kernel>=2.6.4-rc3 hung or panic on C1[18]0
Date: Sat, 24 Apr 2004 16:19:44 -0600
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On Sat, Apr 24, 2004 at 08:52:37PM +0000, Joel Soete wrote:
> Hello Grant,
> 
> Sorry in advance to disturbe you with this c110 pb but if I well understand 
> the physical connection (fine doc find on openpa.net :) and better 
> understand what james means, otc I past the full last week to study more 
> ccio-dma and ncr53c8xx but I don't reach to locate the part of code making 
>  the link between those 2 part (i mean where ncr call ccio and visversa). 
>  Could you help me a bit more.

Yup. Using 2.6.5-pa8 source tree, ncr53c8xx.c calls DMA services from
ncr_scatter():

ncr53c8xx.c:7594:	u_long baddr = map_scsi_single_data(np, cmd);

sym53c8xx_comm.h:699:static int __map_scsi_sg_data(struct device *dev, Scsi_Cmnd *cmd)
...
sym53c8xx_comm.h:708:	use_sg = dma_map_sg(dev, cmd->buffer, cmd->use_sg, dma_dir);


asm/dma-mapping.h:91:static inline int
asm/dma-mapping.h:92:dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
asm/dma-mapping.h:93:           enum dma_data_direction direction)
asm/dma-mapping.h:94:{
asm/dma-mapping.h:95:        return hppa_dma_ops->map_sg(dev, sg, nents, direction);
asm/dma-mapping.h:96:}

Then search for hppa_dma_ops in arch/parisc/kernel/* and drivers/parisc/*.c
to locate the various platform/chipset DMA support:

grundler <553>fgrep -n hppa_dma_ops arch/parisc/kernel/*c drivers/parisc/*
arch/parisc/kernel/drivers.c:30:struct hppa_dma_ops *hppa_dma_ops;
arch/parisc/kernel/drivers.c:31:EXPORT_SYMBOL(hppa_dma_ops);
arch/parisc/kernel/pci-dma.c:492:struct hppa_dma_ops pcxl_dma_ops = {
arch/parisc/kernel/pci-dma.c:533:struct hppa_dma_ops pcx_dma_ops = {
arch/parisc/kernel/setup.c:96:          hppa_dma_ops = &pcx_dma_ops;
arch/parisc/kernel/setup.c:101:         hppa_dma_ops = &pcxl_dma_ops;
drivers/parisc/ccio-dma.c:1009:static struct hppa_dma_ops ccio_ops = {
drivers/parisc/ccio-dma.c:1545: hppa_dma_ops = &ccio_ops;
drivers/parisc/ccio-rm-dma.c:183:       hppa_dma_ops = &ccio_ops;
drivers/parisc/sba_iommu.c:1177:static struct hppa_dma_ops sba_ops = {
drivers/parisc/sba_iommu.c:1809:        hppa_dma_ops = &sba_ops;

Ideally, "make" would detect when support for only one chipset is
needed and just do away with hppa_dma_ops completely (ie directly
call into the chipset specific function).

> Thanks in advance,
> 	Joel
> 
> PS: btw I noticed that ncr_attach() is still prefix by __init where 
> sym_attach() is now prefix by __devinit. I trust it is important but could 
> it be the simple reason of pb encounter?

IIRC, the difference is for hotplug.
__devinit section is preserved when CONFIG_HOTPLUG is enabled.
See linux/Documentation/pci.txt for the real description.

grant


From - Thu Nov 08 21:31:54 2018
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: kernel>=2.6.4-rc3 hung or panic on C1[18]0
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Grant Grundler wrote:
> On Sat, Apr 24, 2004 at 08:52:37PM +0000, Joel Soete wrote:
> 
>>Hello Grant,
>>
>>Sorry in advance to disturbe you with this c110 pb but if I well understand 
>>the physical connection (fine doc find on openpa.net :) and better 
>>understand what james means, otc I past the full last week to study more 
>>ccio-dma and ncr53c8xx but I don't reach to locate the part of code making 
>> the link between those 2 part (i mean where ncr call ccio and visversa). 
>> Could you help me a bit more.
> 
> 
> Yup. Using 2.6.5-pa8 source tree, ncr53c8xx.c calls DMA services from
> ncr_scatter():
> 
> ncr53c8xx.c:7594:	u_long baddr = map_scsi_single_data(np, cmd);
> 
> sym53c8xx_comm.h:699:static int __map_scsi_sg_data(struct device *dev, Scsi_Cmnd *cmd)
> ...
> sym53c8xx_comm.h:708:	use_sg = dma_map_sg(dev, cmd->buffer, cmd->use_sg, dma_dir);
> 
> 
> asm/dma-mapping.h:91:static inline int
> asm/dma-mapping.h:92:dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
> asm/dma-mapping.h:93:           enum dma_data_direction direction)
> asm/dma-mapping.h:94:{
> asm/dma-mapping.h:95:        return hppa_dma_ops->map_sg(dev, sg, nents, direction);
> asm/dma-mapping.h:96:}
> 
> Then search for hppa_dma_ops in arch/parisc/kernel/* and drivers/parisc/*.c
> to locate the various platform/chipset DMA support:
> 
> grundler <553>fgrep -n hppa_dma_ops arch/parisc/kernel/*c drivers/parisc/*
> arch/parisc/kernel/drivers.c:30:struct hppa_dma_ops *hppa_dma_ops;
> arch/parisc/kernel/drivers.c:31:EXPORT_SYMBOL(hppa_dma_ops);
> arch/parisc/kernel/pci-dma.c:492:struct hppa_dma_ops pcxl_dma_ops = {
> arch/parisc/kernel/pci-dma.c:533:struct hppa_dma_ops pcx_dma_ops = {
> arch/parisc/kernel/setup.c:96:          hppa_dma_ops = &pcx_dma_ops;
> arch/parisc/kernel/setup.c:101:         hppa_dma_ops = &pcxl_dma_ops;
> drivers/parisc/ccio-dma.c:1009:static struct hppa_dma_ops ccio_ops = {
> drivers/parisc/ccio-dma.c:1545: hppa_dma_ops = &ccio_ops;
> drivers/parisc/ccio-rm-dma.c:183:       hppa_dma_ops = &ccio_ops;
> drivers/parisc/sba_iommu.c:1177:static struct hppa_dma_ops sba_ops = {
> drivers/parisc/sba_iommu.c:1809:        hppa_dma_ops = &sba_ops;
> 
> Ideally, "make" would detect when support for only one chipset is
> needed and just do away with hppa_dma_ops completely (ie directly
> call into the chipset specific function).
> 
> 
>>Thanks in advance,
>>	Joel
>>
>>PS: btw I noticed that ncr_attach() is still prefix by __init where 
>>sym_attach() is now prefix by __devinit. I trust it is important but could 
>>it be the simple reason of pb encounter?
> 
> 
> IIRC, the difference is for hotplug.
> __devinit section is preserved when CONFIG_HOTPLUG is enabled.
> See linux/Documentation/pci.txt for the real description.
> 
> grant
> 
Great.

Many thanks,
	Joel


From - Thu Nov 08 21:31:54 2018
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Subject: [parisc-linux] Purchase Hy.drocodone Online Easily Today
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From - Thu Nov 08 21:31:54 2018
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On Sun, 2004-04-25 at 09:50, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/04/25 08:50:51
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: asm-offsets.c entry.S head.S head64.S 
> 	                    pacache.S vmlinux.lds.S 
> 	arch/parisc/mm : init.c 
> 	include/asm-parisc: fixmap.h page.h pgtable.h 
> 
> Log message:
> Eliminate some Magic numbers
> 
> Also move fixed mapping definitions into fixmap.h

Index: arch/parisc/kernel/asm-offsets.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/asm-offsets.c,v
retrieving revision 1.3
diff -u -r1.3 asm-offsets.c
--- a/arch/parisc/kernel/asm-offsets.c	17 Jan 2004 06:39:24 -0000	1.3
+++ b/arch/parisc/kernel/asm-offsets.c	25 Apr 2004 14:48:12 -0000
@@ -32,6 +32,7 @@
 #include <linux/thread_info.h>
 #include <linux/version.h>
 #include <linux/ptrace.h>
+#include <asm/pgtable.h>
 
 #include <asm/ptrace.h>
 #include <asm/processor.h>
@@ -275,6 +276,7 @@
 	BLANK();
 	DEFINE(PA_BLOCKSTEP_BIT, 31-PT_BLOCKSTEP_BIT);
 	DEFINE(PA_SINGLESTEP_BIT, 31-PT_SINGLESTEP_BIT);
+	DEFINE(ASM_PMD_ENTRY, ((__PAGE_OFFSET & PMD_MASK) >> PMD_SHIFT));
 	BLANK();
 	return 0;
 }
Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/entry.S,v
retrieving revision 1.7
diff -u -r1.7 entry.S
--- a/arch/parisc/kernel/entry.S	7 Feb 2004 18:32:50 -0000	1.7
+++ b/arch/parisc/kernel/entry.S	25 Apr 2004 14:48:14 -0000
@@ -1041,6 +1041,9 @@
 
 	cmpib,*<>,n     0,spc,dtlb_fault /* forward */
 	ldil            L%(TMPALIAS_MAP_START),t0
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0,31,32,t0	/* clear any sign extension */
+#endif
 	copy            va,t1
 	depdi           0,63,23,t1
 	cmpb,*<>,n      t0,t1,dtlb_fault /* forward */
Index: arch/parisc/kernel/head.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head.S,v
retrieving revision 1.3
diff -u -r1.3 head.S
--- a/arch/parisc/kernel/head.S	17 Jan 2004 15:00:32 -0000	1.3
+++ b/arch/parisc/kernel/head.S	25 Apr 2004 14:48:15 -0000
@@ -83,13 +83,9 @@
 	mtctl		%r4,%cr24	/* Initialize kernel root pointer */
 	mtctl		%r4,%cr25	/* Initialize user root pointer */
 
-#if (__PAGE_OFFSET != 0x10000000UL)
-Error! Code below (the next two stw's) needs to be changed
-#endif
-
-	stw             %r3,0x100(%r4)  /* Hardwired 0x1... kernel Vaddr start*/
+	stw             %r3,((__PAGE_OFFSET>>PGDIR_SHIFT)*4)(%r4)
 	ldo		0x1000(%r3),%r3
-	stw             %r3,0x104(%r4)
+	stw             %r3,(((__PAGE_OFFSET>>PGDIR_SHIFT) + 1)*4)(%r4)
 	ldo		_PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
 $pgt_fill_loop:
 	stwm		%r3,4(%r1)
Index: arch/parisc/kernel/head64.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head64.S,v
retrieving revision 1.4
diff -u -r1.4 head64.S
--- a/arch/parisc/kernel/head64.S	7 Feb 2004 17:56:51 -0000	1.4
+++ b/arch/parisc/kernel/head64.S	25 Apr 2004 14:48:15 -0000
@@ -88,20 +88,16 @@
 	mtctl		%r4,%cr24	/* Initialize kernel root pointer */
 	mtctl		%r4,%cr25	/* Initialize user root pointer */
 
-#if (__PAGE_OFFSET != 0x10000000UL)
-Error! Code below (the next five std's) needs to be changed
-#endif
-
-	std             %r3,0x00(%r4)   /* Hardwired 0x1... kernel Vaddr start*/
+	std             %r3,((__PAGE_OFFSET >> PGDIR_SHIFT)*8)(%r4)
 
 	ldo		_PAGE_TABLE(%r1),%r3
-	std             %r3,0x400(%r5)  /* Hardwired 0x1... kernel Vaddr start*/
+	std             %r3,(ASM_PMD_ENTRY * 8) (%r5)
 	ldo		0x1000(%r3),%r3
-	std             %r3,0x408(%r5)
+	std             %r3,((ASM_PMD_ENTRY + 1)*8)(%r5)
 	ldo		0x1000(%r3),%r3
-	std             %r3,0x410(%r5)
+	std             %r3,((ASM_PMD_ENTRY + 2)*8)(%r5)
 	ldo		0x1000(%r3),%r3
-	std             %r3,0x418(%r5)
+	std             %r3,((ASM_PMD_ENTRY + 3)*8)(%r5)
 
 	ldo		_PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
 $pgt_fill_loop:
Index: arch/parisc/kernel/pacache.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/pacache.S,v
retrieving revision 1.5
diff -u -r1.5 pacache.S
--- a/arch/parisc/kernel/pacache.S	5 Apr 2004 02:47:39 -0000	1.5
+++ b/arch/parisc/kernel/pacache.S	25 Apr 2004 14:48:16 -0000
@@ -350,10 +350,6 @@
 
 	.procend
 
-#if (TMPALIAS_MAP_START >= 0x80000000UL)
-Warning TMPALIAS_MAP_START changed. If > 2 Gb, code in pacache.S is bogus
-#endif
-
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
  *       maximum alias boundary being 4 Mb. We've been assured by the
@@ -490,6 +486,9 @@
 
 	ldil    L%(TMPALIAS_MAP_START),%r28
 #ifdef __LP64__
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi	0,31,32,%r28	/* clear any sign extension */
+#endif
 	extrd,u %r26,56,32,%r26 /* convert phys addr to tlb insert format */
 	depd    %r25,63,22,%r28 /* Form aliased virtual address 'to' */
 	depdi   0,63,12,%r28    /* Clear any offset bits */
Index: arch/parisc/kernel/vmlinux.lds.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/vmlinux.lds.S,v
retrieving revision 1.11
diff -u -r1.11 vmlinux.lds.S
--- a/arch/parisc/kernel/vmlinux.lds.S	23 Apr 2004 13:57:54 -0000	1.11
+++ b/arch/parisc/kernel/vmlinux.lds.S	25 Apr 2004 14:48:16 -0000
@@ -26,6 +26,7 @@
 #include <asm-generic/vmlinux.lds.h>
 /* needed for the processor specific cache alignment size */	
 #include <asm/cache.h>
+#include <asm/page.h>
 	
 /* ld script to make hppa Linux kernel */
 #ifndef CONFIG_PARISC64
@@ -45,7 +46,7 @@
 SECTIONS
 {
 
-  . = 0x10100000;
+  . = KERNEL_BINARY_TEXT_START;
 
   _text = .;			/* Text and read-only data */
   .text ALIGN(16) : {
Index: arch/parisc/mm/init.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/mm/init.c,v
retrieving revision 1.3
diff -u -r1.3 init.c
--- a/arch/parisc/mm/init.c	29 Sep 2003 16:05:00 -0000	1.3
+++ b/arch/parisc/mm/init.c	25 Apr 2004 14:48:17 -0000
@@ -424,7 +424,12 @@
  * a hole of 4kB between each vmalloced area for the same reason.
  */
 
-#define MAP_START 0x4000 /* Leave room for gateway page expansion */
+ /* Leave room for gateway page expansion */
+#if KERNEL_MAP_START < GATEWAY_PAGE_SIZE
+#error KERNEL_MAP_START is in gateway reserved region
+#endif
+#define MAP_START (KERNEL_MAP_START)
+
 #define VM_MAP_OFFSET  (32*1024)
 #define SET_MAP_OFFSET(x) ((void *)(((unsigned long)(x) + VM_MAP_OFFSET) \
 				     & ~(VM_MAP_OFFSET-1)))
Index: include/asm-parisc/fixmap.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/fixmap.h,v
retrieving revision 1.1
diff -u -r1.1 fixmap.h
--- a/include/asm-parisc/fixmap.h	29 Jul 2003 17:02:03 -0000	1.1
+++ b/include/asm-parisc/fixmap.h	25 Apr 2004 14:48:36 -0000
@@ -2,18 +2,22 @@
 #define _ASM_FIXMAP_H
 
 /*
- * Allocate a 8 Mb temporary mapping area for copy_user_page/clear_user_page.
- * This area needs to be aligned on a 8 Mb boundary.
+ * This file defines the locations of the fixed mappings on parisc.
  *
- * FIXME:
+ * All of the values in this file are machine virtual addresses.
  *
- * For PA-RISC, this has no meaning.  It is starting to be used on x86
- * for vsyscalls.  PA will probably do this using space registers.
- */
+ * All of the values in this file must be <4GB (because of assembly
+ * loading restrictions).  If you place this region anywhere above
+ * __PAGE_OFFSET, you must adjust the memory map accordingly */
 
-/* This TMPALIAS_MAP_START reserves some of the memory where the
- * FIXMAP region is on x86.  It's only real use is to constrain
- * VMALLOC_END (see pktable.h) */
-#define TMPALIAS_MAP_START (__PAGE_OFFSET - 0x01000000)
+/* The alias region is used in kernel space to do copy/clear to or
+ * from areas congruently mapped with user space.  It is 8MB large
+ * and must be 16MB aligned */
+#define TMPALIAS_MAP_START	((__PAGE_OFFSET) - 16*1024*1024)
+/* This is the kernel area for all maps (vmalloc, dma etc.)  most
+ * usually, it extends up to TMPALIAS_MAP_START.  Virtual addresses
+ * 0..GATEWAY_PAGE_SIZE are reserved for the gateway page */
+#define KERNEL_MAP_START	(GATEWAY_PAGE_SIZE)
+#define KERNEL_MAP_END		(TMPALIAS_MAP_START)
 
 #endif
Index: include/asm-parisc/page.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/page.h,v
retrieving revision 1.2
diff -u -r1.2 page.h
--- a/include/asm-parisc/page.h	25 Sep 2003 01:07:21 -0000	1.2
+++ b/include/asm-parisc/page.h	25 Apr 2004 14:48:36 -0000
@@ -89,9 +89,22 @@
 

 #define LINUX_GATEWAY_SPACE     0
+
+/* This governs the relationship between virtual and physical addresses.
+ * If you alter it, make sure to take care of our various fixed mapping
+ * segments in fixmap.h */
 #define __PAGE_OFFSET           (0x10000000)
 
 #define PAGE_OFFSET		((unsigned long)__PAGE_OFFSET)
+
+/* The size of the gateway page (we leave lots of room for expansion) */
+#define GATEWAY_PAGE_SIZE	0x4000
+
+/* The start of the actual kernel binary---used in vmlinux.lds.S
+ * Leave some space after __PAGE_OFFSET for detecting kernel null
+ * ptr derefs */
+#define KERNEL_BINARY_TEXT_START	(__PAGE_OFFSET + 0x100000)
+
 /* These macros don't work for 64-bit C code -- don't allow in C at all */
 #ifdef __ASSEMBLY__
 #   define PA(x)	((x)-__PAGE_OFFSET)
Index: include/asm-parisc/pgtable.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pgtable.h,v
retrieving revision 1.4
diff -u -r1.4 pgtable.h
--- a/include/asm-parisc/pgtable.h	27 Jan 2004 18:46:14 -0000	1.4
+++ b/include/asm-parisc/pgtable.h	25 Apr 2004 14:48:37 -0000
@@ -110,7 +110,7 @@
 #define PCXL_DMA_MAP_SIZE   (8*1024*1024)
 #define VMALLOC_START   ((unsigned long)vmalloc_start)
 /* this is a fixmap remnant, see fixmap.h */
-#define VMALLOC_END	(TMPALIAS_MAP_START)
+#define VMALLOC_END	(KERNEL_MAP_END)
 #endif
 
 /* NB: The tlb miss handlers make certain assumptions about the order */



From - Thu Nov 08 21:31:54 2018
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Subject: [parisc-linux] Re: [parisc-linux-cvs] 7300LC
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willy, kyle found out that this doesn't work:

> > Split out 7300LC from 7100LC and PREFETCH from PA20.

extern inline void prefetchw(const void *addr)
{
        __asm__("ldd 0(%0), %%r0" : : "r" (addr));
}

on pa11 gas won't assemble the ldd insn.

is this supposed to work for pa7300lc? if so we might have to rewrite
prefetchw to use a .word or something...

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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----1339158834161622--









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Xref: news.gmane.org gmane.linux.ports.parisc:21516

> willy, kyle found out that this doesn't work:
> 
> > > Split out 7300LC from 7100LC and PREFETCH from PA20.
> 
> extern inline void prefetchw(const void *addr)
> {
>         __asm__("ldd 0(%0), %%r0" : : "r" (addr));
> }
> 
> on pa11 gas won't assemble the ldd insn.

Right.  "ldd" requires pa20.

It looks like the 7300LC is PCX-L2.  I think this is PA 1.1e chip.
<http://www.openpa.net/cpu.html#xl2>.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 carlos
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On Sun, Apr 25, 2004 at 10:46:48PM -0600, Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	carlos	04/04/25 22:46:48
> 
> Modified files:
> 	kernel         : compat_signal.c 
> 
> Log message:
> Add __SI_MESGQ case to compat (simple one liner)

Add the __SI_MESGQ case so that siginfo delivers the right data.

Index: kernel/compat_signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/kernel/compat_signal.c,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -p -r1.2 -r1.3
--- a/kernel/compat_signal.c	28 Jan 2004 05:12:46 -0000	1.2
+++ b/kernel/compat_signal.c	26 Apr 2004 04:46:48 -0000	1.3
@@ -102,6 +102,7 @@ int compat_copy_siginfo_to_user(compat_s
 		err |= __put_user(compat_from.si_stime, &to->si_stime);
 		break;
 	case __SI_RT: /* This is not generated by the kernel as of now. */
+	case __SI_MESGQ: /* But this is */
 		compat_from.si_pid = (compat_pid_t)(from->si_pid);
 		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
 		compat_from.si_int = (compat_int_t)(from->si_int);


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From: Matthew Wilcox <willy@debian.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [parisc-linux-cvs] 7300LC
Date: Mon, 26 Apr 2004 12:59:18 +0100
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Cc: Matthew Wilcox <willy@debian.org>, parisc-linux@lists.parisc-linux.org
To: Randolph Chung <tausq@debian.org>
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On Sun, Apr 25, 2004 at 06:41:11PM -0700, Randolph Chung wrote:
> willy, kyle found out that this doesn't work:
> 
> > > Split out 7300LC from 7100LC and PREFETCH from PA20.
> 
> extern inline void prefetchw(const void *addr)
> {
>         __asm__("ldd 0(%0), %%r0" : : "r" (addr));
> }
> 
> on pa11 gas won't assemble the ldd insn.
> 
> is this supposed to work for pa7300lc? if so we might have to rewrite
> prefetchw to use a .word or something...

It is supposed to work, yes.  I gleaned this information from
http://cpus.hp.com/technical_references/b7300lc.shtml section 2.2.4
The 7300LC ERS (http://ftp.parisc-linux.org/docs/chips/pcxl2_ers.pdf)
is of no help in this matter.  In section 14.5, it says:

  Because the processor does not necessarily stall even with two cache
  misses pending, software prefetching can lead to better performance
  increases than on the PA7100LC. This is because a software prefetch,
  initiated by a load to general register 0, is not treated like a
  load miss by the data cache and therefore can be completed in the
  ``background'' by the hardware and is less likely to cause processor
  stalls.

But, thinking about it, PA7300LC isn't SMP-capable.  Is there any
difference between prefetch-for-read and prefetch-for-write on a
uniprocessor system?  I don't think so.  So possibly we should just
define prefetchw to be the same as prefetch for CONFIG_PA7300LC and
different for CONFIG_PA20.  Makes sense?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


From - Thu Nov 08 21:31:55 2018
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From: "Paul" <paul@techcenter3000.com>
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Subject: [parisc-linux] Harmony driver for 2.6 working, possible bug in top?
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Hello,

I'm new to parisc-linux, but I've been busily trying to get my HPPA box =
up and running, mostly using Gentoo.

News: Harmony driver for Alsa in 2.6 kernels is now compiling cleanly! I =
thank Takashi Iwai for the code fix(es), I'm guessing it should be in =
CVS any time now.=20

Bug in top: Can anyone else verify this? Add WCHAN to the field list and =
tell me if you think it's right.

Thanks
Paul

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2900.2096" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV>
<DIV><FONT face=3DArial size=3D2>Hello,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I'm new to parisc-linux, but I've been =
busily=20
trying to get my HPPA box up and running, mostly using =
Gentoo.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>News: Harmony driver for Alsa&nbsp;in =
2.6 kernels=20
is now compiling cleanly! I thank Takashi Iwai for the code fix(es), I'm =

guessing it should be in CVS any time now. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Bug in top: Can anyone else verify =
this? Add WCHAN=20
to the field list and tell me if you think it's right.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Paul</FONT></DIV>
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From: "Philippe Bardyn" <philippe_bardyn@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] any news about support of SCSI on E35 serie
Date: Mon, 26 Apr 2004 15:55:10 +0200
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<html><div style='background-color:'><DIV class=RTE>
<P>Hi folks</P>
<P>Crawling the web this week-end, I saw some messages saying that the SCSI support for E35 serie is expected soon. But the pages are dated mid 2002.</P>
<P>Any news about that...because I just received such HP machine with a corrupt&nbsp;OS and if I'd like to know if I can use it as a decent linux server or converting it to a powerfull heater ;-)</P>
<P>To my knowledge, HP-UX 10.20 is difficult to find...and it's also expensive ! ( am I right ? )</P>
<P>Thanks in advance</P>
<P>Phil</P>
<P>&nbsp;</P>
<P>&nbsp;</P>
<P><BR><BR>&nbsp;</P></DIV></div><br clear=all><hr> <a href="http://g.msn.com/8HMBFRBE/2749??PS=">Prparez vos valises !</a> </html>


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Subject: [parisc-linux] Bug in kernel 2.4.23 concerning use of SCSI
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Hi,

using kernel 2.4.23-pa3, which I downloaded from http://parisc-linux.org/~rbrad/vmlinux-2.4.23-pa3.bz2 because I needed MUX support.

Machine is a HP K-200 with three CPUs (although, since this is not an smp kernel, should not be important);

I have a 50 GB SCSI-drive attached to SCSI1 (the Low Voltage Controller where the CD-Rom is attached to); Whenever I try to format the partition (50GB, the whole disk) I get the following:

> Writing superblocks and filesystem accounting information: scsi1 (0:0)
> Target is suffering from tag starvation.
> SCSI disk error : host 1 channel 0 id 0 lun 0 return code = 8
> I/O error: dev 08:41, sector 34078720
> SCSI disk error : host 1 channel 0 id 0 lun 0 return code = 8
> I/O error: dev 08:41, sector 34078722
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 90 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 7c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 c4 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 ac 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 10 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 9c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 00 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 80 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 c4 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 ac 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 10 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 9c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 00 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 80 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 02 04 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 01 d0 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 01 fc 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 02 00 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 8c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 f4 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants device reset
>        0x2a 00 04 90 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants BUS reset, cmd 21e46e00
>        0x2a 00 04 90 00 28 00 00 08 00
> scsi1: Bus Reset detected, executing command 00000000, slot 00000000,
> dsp 001704a8[04a8]
> failing command because of reset, slot 21e88654, cmnd 21e46e00
> failing command because of reset, slot 21e88788, cmnd 21e47e00
> failing command because of reset, slot 21e888bc, cmnd 21e47800
> failing command because of reset, slot 21e889f0, cmnd 21e46200
> failing command because of reset, slot 21e88b24, cmnd 21e46000
> failing command because of reset, slot 21e88c58, cmnd 21e46400
> failing command because of reset, slot 21e88d8c, cmnd 21e46600
> failing command because of reset, slot 21e88ec0, cmnd 21e46a00
> failing command because of reset, slot 21e88ff4, cmnd 21e47c00
> failing command because of reset, slot 21e89128, cmnd 21e47a00
> failing command because of reset, slot 21e8925c, cmnd 21e47600
> failing command because of reset, slot 21e894c4, cmnd 21e47400
> failing command because of reset, slot 21e895f8, cmnd 21e47200
> failing command because of reset, slot 21e8972c, cmnd 21e47000
>
> Stack Dump:
> 21e90740:  0004ff0e 00000000 21e90670 21e90650
> 21e90730:  00000000 10228630 00000000 21e90000
> 21e90720:  00000000 00000000 00000000 21e90000
> 21e90710:  00000001 00000002 21f36000 00000002
> 21e90700:  21f3c040 1006c000 103aa010 103aa010
> 21e906f0:  1032b010 1020e448 103cd000 00000001
>
> Kernel addresses on the stack:

> Kernel Fault: Code=26 regs=21e90740 (Addr=00000048)
>
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001110 Not tainted
> r00-03  00000000 103ebab8 10228630 21e8972c
> r04-07  21e46e00 1020de94 21f60400 00002000
> r08-11  000003e8 0000ffff 00002000 00001000
> r12-15  00001002 21f61ea0 000000fd f0100000
> r16-19  f0000fe0 f0000074 f000006c 00000080
> r20-23  00000000 21e889f0 10065860 00000000
> r24-27  00000000 00000000 21f60404 10316010
> r28-31  21f60404 10326c00 21e90740 1020e51c
> sr0-3   00000000 00000003 00000000 00000003
> sr4-7   00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 102286bc 102286c0
> IIR: 4a930090    ISR: 00000000  IOR: 00000048
> CPU:        0   CR30: 21e90000 CR31: 103d8000
> ORIG_R28: 00000000

Then the machine freezes, I need to reboot. When I make a partition with 40GB and format it, I get an error message very much the same, but I get a prompt and can continue to work. When I use a
partition of 30GB, it works. What seems to be the problem here?

Greets,

Jay






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Subject: Re: [parisc-linux] Harmony driver for 2.6 working,
	possible bug in top?
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On Mon, Apr 26, 2004 at 08:54:08AM -0500, Paul wrote:
> Bug in top: Can anyone else verify this? Add WCHAN to the field list
> and tell me if you think it's right.

WCHAN has never been implemented properly.  Paul Bame did a bit of a
hack once but the Right Way to do it is to implement a stack unwinder.
Randolph said he may have time to look into it shortly.

PS, please wrap your lines at 80 columns.


-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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------=_NextPart_000_0010_00003C3E.000050E9--



--===========================_ _= 6200561(16034)1082989660--



From - Thu Nov 08 21:31:55 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] Bug in kernel 2.4.23 concerning use of SCSI
Date: Mon, 26 Apr 2004 18:36:12 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:21526

Hello,

Just for curiosity, can you join a dmesg file.

Thanks,
    Joel

> -- Original Message --
> To: parisc-linux@lists.parisc-linux.org
> From: JKonrad@linotype.com
> Date: Mon, 26 Apr 2004 16:08:58 +0200
> Subject: [parisc-linux] Bug in kernel 2.4.23 concerning use of SCSI
> 
> 
> Hi,

using kernel 2.4.23-pa3, which I downloaded from http://parisc-linux.org/~rbrad/vmlinux-2.4.23-pa3.bz2
because I needed MUX support.

Machine is a HP K-200 with three CPUs (although, since this is not an smp
kernel, should not be important);

> 
I have a 50 GB SCSI-drive attached to SCSI1 (the Low Voltage Controller where
the CD-Rom is attached to); Whenever I try to format the partition (50GB,
the whole disk) I get the following:

> Writing superblocks and filesystem accounting information
>  scsi1 (0:0)
> Target is suffering from tag starvation.
> SCSI disk error : host 1 channel 0 id 0 lun 0 return code = 8
> I/O error: dev 08:41, sector 34078720
> SCSI disk error : host 1 channel 0 id 0 lun 0 return code = 8
> I/O error: dev 08:41,
> sector 34078722
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 90 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 7c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants t
>  abort command
>        0x2a 00 05 c4 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 ac 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 10 00 28 00 00 08 00
> 
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 9c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 00 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command

> >        0x2a 00 04 80 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 c4 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 ac 00 28 00 00 08 00
> scsi1 (0:0) 
> ew error handler wants to abort command
>        0x2a 00 05 10 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 05 9c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 0
>  04 00 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 80 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 02 04 00 28 00 00 08 00
> scsi1 (0:0) New error handle
>  wants to abort command
>        0x2a 00 01 d0 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 01 fc 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 02 00 00 28 00
> 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 8c 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants to abort command
>        0x2a 00 04 f4 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants device r
> set
>        0x2a 00 04 90 00 28 00 00 08 00
> scsi1 (0:0) New error handler wants BUS reset, cmd 21e46e00
>        0x2a 00 04 90 00 28 00 00 08 00
> scsi1: Bus Reset detected, executing command 00000000, slot 00000000,
> dsp 001704a8[04a8]
> fai
> ing command because of reset, slot 21e88654, cmnd 21e46e00
> failing command because of reset, slot 21e88788, cmnd 21e47e00
> failing command because of reset, slot 21e888bc, cmnd 21e47800
> failing command because of reset, slot 21e889f0, cmnd 21e4
> 200
> failing command because of reset, slot 21e88b24, cmnd 21e46000
> failing command because of reset, slot 21e88c58, cmnd 21e46400
> failing command because of reset, slot 21e88d8c, cmnd 21e46600
> failing command because of reset, slot 21e88ec0
>  cmnd 21e46a00
> failing command because of reset, slot 21e88ff4, cmnd 21e47c00
> failing command because of reset, slot 21e89128, cmnd 21e47a00
> failing command because of reset, slot 21e8925c, cmnd 21e47600
> failing command because of reset, sl
> t 21e894c4, cmnd 21e47400
> failing command because of reset, slot 21e895f8, cmnd 21e47200
> failing command because of reset, slot 21e8972c, cmnd 21e47000
>
> Stack Dump:
> 21e90740:  0004ff0e 00000000 21e90670 21e90650
> 21e90730:  00000000 102
> 8630 00000000 21e90000
> 21e90720:  00000000 00000000 00000000 21e90000
> 21e90710:  00000001 00000002 21f36000 00000002
> 21e90700:  21f3c040 1006c000 103aa010 103aa010
> 21e906f0:  1032b010 1020e448 103cd000 00000001
>
> Kernel addresses on the
> stack:

> Kernel Fault: Code=26 regs=21e90740 (Addr=00000048)
>
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001110 Not tainted
> r00-03  00000000 103ebab8 10228630 21e8972c
> r04-07  21e46e00 1020de94 21f60400 000020
> 0
> r08-11  000003e8 0000ffff 00002000 00001000
> r12-15  00001002 21f61ea0 000000fd f0100000
> r16-19  f0000fe0 f0000074 f000006c 00000080
> r20-23  00000000 21e889f0 10065860 00000000
> r24-27  00000000 00000000 21f60404 10316010
> r28-31  21f6
> 404 10326c00 21e90740 1020e51c
> sr0-3   00000000 00000003 00000000 00000003
> sr4-7   00000000 00000000 00000000 00000000
>
> IASQ: 00000000 00000000 IAOQ: 102286bc 102286c0
> IIR: 4a930090    ISR: 00000000  IOR: 00000048
> CPU:        0   CR30:
> 21e90000 CR31: 103d8000
> ORIG_R28: 00000000

Then the machine freezes, I need to reboot. When I make a partition with
40GB and format it, I get an error message very much the same, but I get
a prompt and can continue to work. When I use a
partitio
>  of 30GB, it works. What seems to be the problem here?

Greets,

Jay




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From - Thu Nov 08 21:31:55 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: kernel>=2.6.4-rc3 hung or panic on C1[18]0
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Hi all,

I know it shouldn't be the source of the pb but btw I noticed:

> ncr53c8xx.c:7594:	u_long baddr = map_scsi_single_data(np, cmd);

cmd is a "struct scsi_cmnd *" (the parameter of ncr_scatter)

> sym53c8xx_comm.h:699:static int __map_scsi_sg_data(struct device *dev,
Scsi_Cmnd *cmd)
...
sym53c8xx_comm.h:708:	use_sg = dma_map_sg(dev, cmd->buffer, cmd->use_sg,
dma_dir);

and here cmd is a "Scsi_Cmnd *" which is so of different type because of
"typedef struct scsi_cmnd Scsi_Cmnd"


What should it be done?

Thanks in advance for your attention,
    Joel



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Subject: RE: [parisc-linux] Re: [parisc-linux-cvs] 7300LC
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> on pa11 gas won't assemble the ldd insn.

Yes, it doesn't (i test on a b180 which just have a PA7300LC).

Joel

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On Mon, Apr 26, 2004 at 06:52:40PM +0200, Joel Soete wrote:
> and here cmd is a "Scsi_Cmnd *" which is so of different type because of
> "typedef struct scsi_cmnd Scsi_Cmnd"

uhm...the typedef says Scsi_Cmnd *IS* struct scsi_cmnd.
Therefor "Scsi_Cmnd *"  is the same type as "struct scsi_cmnd *".

> What should it be done?

Get rid of Scsi_Cmnd typedef?
I personally consider it bad style to use both forms in the same
subsystem and don't really care which is used. But that's an
issue for the subsystem maintainer to decide. :^)

grant


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Subject: RE: [parisc-linux] Re: [parisc-linux-cvs] 7300LC
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The prefetch for read (using LDW) vs. prefetch for write (using LDD) applies
only to PA2.0 processors.  PA1.1 processors (including the 7300LC), since
they're only 32-bit machines, don't implement LDD (64-bit load).  For PA1.1,
there's only one kind of prefetch, using LDW.

 -- Jim
    HP PA-RISC/Itanium Processor Architect

> -----Original Message-----
> From: parisc-linux-bounces@lists.parisc-linux.org 
> [mailto:parisc-linux-bounces@lists.parisc-linux.org] On 
> Behalf Of Matthew Wilcox
> Sent: Monday, April 26, 2004 4:59 AM
> To: Randolph Chung
> Cc: Matthew Wilcox; parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] Re: [parisc-linux-cvs] 7300LC
> 
> 
> On Sun, Apr 25, 2004 at 06:41:11PM -0700, Randolph Chung wrote:
> > willy, kyle found out that this doesn't work:
> > 
> > > > Split out 7300LC from 7100LC and PREFETCH from PA20.
> > 
> > extern inline void prefetchw(const void *addr)
> > {
> >         __asm__("ldd 0(%0), %%r0" : : "r" (addr));
> > }
> > 
> > on pa11 gas won't assemble the ldd insn.
> > 
> > is this supposed to work for pa7300lc? if so we might have 
> to rewrite
> > prefetchw to use a .word or something...
> 
> It is supposed to work, yes.  I gleaned this information from
> http://cpus.hp.com/technical_references/b7300lc.shtml section 2.2.4
> The 7300LC ERS (http://ftp.parisc-linux.org/docs/chips/pcxl2_ers.pdf)
> is of no help in this matter.  In section 14.5, it says:
> 
>   Because the processor does not necessarily stall even with two cache
>   misses pending, software prefetching can lead to better performance
>   increases than on the PA7100LC. This is because a software prefetch,
>   initiated by a load to general register 0, is not treated like a
>   load miss by the data cache and therefore can be completed in the
>   ``background'' by the hardware and is less likely to cause processor
>   stalls.
> 
> But, thinking about it, PA7300LC isn't SMP-capable.  Is there any
> difference between prefetch-for-read and prefetch-for-write on a
> uniprocessor system?  I don't think so.  So possibly we should just
> define prefetchw to be the same as prefetch for CONFIG_PA7300LC and
> different for CONFIG_PA20.  Makes sense?
> 
> -- 
> "Next the statesmen will invent cheap lies, putting the blame upon 
> the nation that is attacked, and every man will be glad of those
> conscience-soothing falsities, and will diligently study 
> them, and refuse
> to examine any refutations of them; and thus he will by and 
> by convince 
> himself that the war is just, and will thank God for the better sleep 
> he enjoys after this process of grotesque self-deception." -- 
> Mark Twain
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 



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------=_NextPart_000_0016_00007924.00001E9E--




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From: Kyle McMartin <kyle@engsoc.org>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 tausq
Date: Mon, 26 Apr 2004 16:24:46 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:21532

On Mon, Apr 26, 2004 at 01:03:05PM -0600, Randolph Chung wrote:
> Log message:
> 2.6.6-rc1-pa4
> disable prefetchw for !pa20
> 

Oddly, this dies on boot on my B180.

The contents of IIR is the prefetch instruction (ldw 0(%r19), %r0).

Stack Dump:
 10410a18:  10410a18 00000057 00000056 00000055 
 10410a08:  00000054 00000053 00000052 00000051 
 104109f8:  00000050 0000004f 0000004e 0000004d 
 104109e8:  0000004c 0000004b 0000004a 00000049 
 104109d8:  00000048 00000047 00000046 00000000 
 104109c8:  10410680 0000001a 00000000 00000041 
 104109b8:  00000040 0000003f 0000003e 10106d1c 
 104109a8:  0000003c 0000003b 0000003a 00000039 
 10410998:  00000038 00000037 00000036 00000035 
 10410988:  00000034 00000033 00000032 00000031 
 10410978:  00000030 0000002f 0000002e 0000002d 
 10410968:  0000002c 0000002b 0000002a 00000029 
 10410958:  00000028 29fef004 29ff5870 1087a6f0 
 10410948:  10410508 00000023 00000022 00000021 
 10410938:  00000020 0000001f 0000001e 0000001d 
 10410928:  0000001c 0000001b 0000001a 00000019 
 10410918:  00000018 00000017 00000016 00000015 
 10410908:  00000014 00000013 00000012 00000011 
 104108f8:  00000010 0000000f 0000000e 0000000d 
 104108e8:  0000000c 0000000b 0000000a 00000009 
 104108d8:  00000008 00000007 00000006 0000001d 
 104108c8:  0000001c 0000001b 0000001a 00000019 
 104108b8:  00000018 00000017 00000016 1010c088 
 104108a8:  00000014 00000013 00000012 00000011 
 10410898:  00000010 0000000f 0000000e 0000000d 
 10410888:  0000000c 0000000b 0000000a 00000009 
 10410878:  00000008 00000007 00000006 00000005 
 10410868:  00000004 00000003 00000002 00000001 
 10410858:  00000000 00000000 00000000 00000000 
 10410848:  0e601080 00000010 00000000 00000000 
 10410838:  00000000 00000000 00000000 10176cb0 
 10410828:  10176cac 00000000 00000000 00000000 
 10410818:  00000000 00000000 00000000 00000000 
 10410808:  00000000 00000000 00000000 00000000 
 104107f8:  41000000 00000000 40800000 00000000 
 104107e8:  40000000 00000000 40000000 7fffffff 
 104107d8:  41800000 00000000 40200000 00000000 
 104107c8:  40200000 00000000 40300000 00000000 
 104107b8:  41000000 00000000 40800000 7fffffff 
 104107a8:  7fffffff 00000000 41000000 7fffffff 
 10410798:  7fffffff 00000800 00000400 00000200 
 10410788:  00000100 00000080 00000040 00000000 
 10410778:  00000000 00000010 00000010 00000000 
 10410768:  41800000 25b7ea20 45e69c6a 00000000 
 10410758:  00000000 e0000000 43ebebeb ffffffff 
 10410748:  7f7fffff 00000020 00000010 00000000 
 10410738:  00000000 00000000 00000000 00000000 
 10410728:  00000000 00000000 00000000 00000000 
 10410718:  0000001f 00000000 0000001f 00000000 
 10410708:  0000001f 00000000 000f0800 1016cad8 
 104106f8:  10410680 18701a80 00000000 103b6010 
 104106e8:  29ff5940 10410510 10410508 00001000 
 104106d8:  00000000 0000ffff 10840000 00000000 
 104106c8:  19ffffe0 f0000194 1037df04 1049b010 
 104106b8:  1043a810 1043a810 00000000 29fef001 
 104106a8:  00000003 29ff5940 10410510 0023ee05 
 10410698:  10410508 1087a6f0 29ff5870 29fef004 
 10410688:  1016c08c 104af010 0004ff0f 00000009 
 10410678:  00000009 00000009 00000009 10142d98 
 10410668:  00000009 00000009 00000009 00000009 
 10410658:  00000009 29ff0680 29ffb340 00000000 
 10410648:  29fef000 000000d0 29ff6ce0 00000009 
 10410638:  00000009 00000009 00000009 101778bc 
 10410628:  00000009 29fef004 10410408 29ff84a0 

Kernel addresses on the stack:
 [<10106a68>] parisc_terminate+0x60/0xb4
 [<10106d1c>] handle_interruption+0x260/0x560
 [<1010c088>] intr_check_sig+0x0/0xc
 [<10176cb0>] __d_lookup+0x88/0x174
 [<10142d98>] __get_free_pages+0x28/0x5c
 [<101778bc>] alloc_inode+0x28/0x184
 [<1016c08c>] do_lookup+0x30/0xc8
 [<101b3604>] ramfs_get_inode+0x1c/0x13c
 [<1016c6b0>] link_path_walk+0x58c/0xa08
 [<1016ce34>] path_lookup+0xc0/0x200
 [<1016d154>] __user_walk+0x5c/0x78
 [<1015c6d0>] sys_chown+0x28/0x70
 [<1041f17c>] do_name+0xf0/0x180
 [<1041f414>] write_buffer+0x4c/0x74
 [<1041f48c>] flush_buffer+0x50/0xa4
 [<1041f524>] flush_window+0x3c/0xa8
 [<10104438>] inflate+0xa0/0xcc
 [<10147290>] do_tune_cpucache+0x10c/0x17c
 [<10104838>] gunzip+0x338/0x57c
 [<1041e898>] malloc+0x10/0x1c
 [<1041f7a0>] unpack_to_rootfs+0x210/0x284
 [<1041f840>] populate_rootfs+0x2c/0x4c
 [<1041d344>] start_kernel+0x198/0x1f0

Kernel Fault: Code=26 regs=10410680 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 104af010 1016c08c 29fef004
r04-07  29ff5870 1087a6f0 10410508 0023ee05
r08-11  10410510 29ff5940 00000003 29fef001
r12-15  00000000 1043a810 1043a810 1049b010
r16-19  1037df04 f0000194 19ffffe0 00000000
r20-23  10840000 0000ffff 00000000 00001000
r24-27  10410508 10410510 29ff5940 103b6010
r28-31  00000000 18701a80 10410680 1016cad8
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10176cac 10176cb0
 IIR: 0e601080    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 10410000 CR31: 10414000
 ORIG_R28: 00000000
 IAOQ[0]: __d_lookup+0x84/0x174
 IAOQ[1]: __d_lookup+0x88/0x174
 RP(r2): do_lookup+0x30/0xc8

Regards,
-- 
Kyle McMartin


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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 tausq
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Xref: news.gmane.org gmane.linux.ports.parisc:21533

> Oddly, this dies on boot on my B180.
> 
> The contents of IIR is the prefetch instruction (ldw 0(%r19), %r0).

> r16-19  1037df04 f0000194 19ffffe0 00000000

%r19 is 0.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 tausq
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In reference to a message from John David Anglin, dated Apr 26:
> > Oddly, this dies on boot on my B180.
> > 
> > The contents of IIR is the prefetch instruction (ldw 0(%r19), %r0).
> 
> > r16-19  1037df04 f0000194 19ffffe0 00000000
> 
> %r19 is 0.

prefetching on 0 is valid on pa20 tho.

willy is fixing this in the kernel now.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 tausq
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On Mon, Apr 26, 2004 at 01:30:50PM -0700, Randolph Chung wrote:
> prefetching on 0 is valid on pa20 tho.

And required to be valid by the definition of the prefetch macros.

> willy is fixing this in the kernel now.

Not only did I fix it, but I put in a comment saying why we can't do
what I thought we could ;-)

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Subject: [parisc-linux] Linux-2.6.6-rc1-pa3 and pdflush problems
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Hi,

I have experienced some problems with linux-2.6.6-rc1-pa0 and -pa3.
After running fine for around 10 hours, suddenly the
USB keyboard and mouse were not working anymore, and my friends
were not able to web access to the internet (which is routed through the
machine, with a transparent squid proxy set up that stores the
cache files on /dev/hda).

The LCD of my C3000 also showed some strange message instead of
'Linux-2.6.6-rc1-pa0' (I think I could read the letters HPMC somewhere,
but I didn't do a 'ser pim', since I forgot to clear it before, and
I didn't had my serial console cable handy).


I updated the kernel to -pa3, and now I could witness something strange
happening, again after about 11 hours running without problems:
Again the USB keyboard and mouse didn't work, the serial console
wouldn't respond to input, but printed out 'hda: lost interrupt',
'dma_mask=0x64' and 'retrying to recover interrupt' messages repeatedly.

This time I tried to ssh to the machine remotely and this worked,
and I was also able to ping to the internet, but - of course - the access
to the web wouldn't work, since the squid proxy would try to access /dev/hda.


However I was able to notice something rather odd:
wmcpuload showed 100% CPU usage, so I ran top and found
'pdflush' consuming all CPU ressources. The machine seemed to be running
fine (apart from no serial console, no /dev/hda access, no USB keyb/mouse),
and didn't seem to be slowed down despite pdflush burning all CPU cycles.
I pressed the power button, and the machine shut down properly (no HPMC
or similar).


So I guess the problem I experienced with -pa0 and -pa3 are somewhat
related (same symptoms), and I guess a HPMC would have resulted
if I just have waited long enough ...


Any ideas if this could be related to the recent changes in the cache
flush handling? Eg.
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2004-April/033981.html


Unfortunately I just switched to the 2.6 kernel (for permanent use) recently,
so I'm not know whether this error would have happened with a
pre-2.6.6-rc1 kernel aswell.
Well, I have tested some 2.6.x kernels before, and most definitely also
for longer than 10 hours without problems, but basically running without
any load and without X (since I just got my Voodoo2 graphics card two
weeks ago).

I doubt this problem is related to the Voodoo2, since I guess some other
people would with a Voodoo graphics card would have posted similar problem
reports to the list. Furthermore the graphics card did work fine during
the problems (the screen was updated fine, I just couldn't use X anymore).


Sorry for so little info (System.map and .config will be supplied if
requested, but they haven't changed much since my last posts).

I'm gonna try to post a 'ser pim' when the problem reappears again,
and after the machine had a HPMC. Maybe somebody has some hints what
commands I could use to provide you with some more info if the problem
appears again ...


Greetings,
  Max


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Subject: RE: [parisc-linux] Linux-2.6.6-rc1-pa3 and pdflush problems
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> Unfortunately I just switched to the 2.6 kernel (for permanent use) recently,
> so I'm not know whether this error would have happened with a
> pre-2.6.6-rc1 kernel aswell.

uhm the http://cvs.parisc-linux.org/download/linux-2.6/patch-2.6.5-pa8.gz
patch could always help you to rebuild this previous 2.6.6 kernel from upstream
src ;)

hth,
   Joel

PS: on my b2k (the brother model of c3k) I am running a 2.6.6-rc1-pa0 for
an uptime of 11days without any major pb. (well always some small hung of
some minutes because of scsi bus reset from time to time but no major issue).
But I have no additional gfx, no ide hd (just a cdrom drive) and I only use
serial console (so I couldn't help you more)

----------------------------------------------------------------------------------------
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http://reg.tiscali.be/default.asp?lg=fr





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On Tue, 27 Apr 2004, Joel Soete wrote:

> > Unfortunately I just switched to the 2.6 kernel (for permanent use) recently,
> > so I'm not know whether this error would have happened with a
> > pre-2.6.6-rc1 kernel aswell.
>
> uhm the http://cvs.parisc-linux.org/download/linux-2.6/patch-2.6.5-pa8.gz
> patch could always help you to rebuild this previous 2.6.6 kernel from upstream
> src ;)

Thanks, I'll give it a try ...

> PS: on my b2k (the brother model of c3k) I am running a 2.6.6-rc1-pa0 for
> an uptime of 11days without any major pb. (well always some small hung of
> some minutes because of scsi bus reset from time to time but no major issue).
> But I have no additional gfx, no ide hd (just a cdrom drive) and I only use
> serial console (so I couldn't help you more)

BTW,
This time it didn't take several hours, but merely a couple of minutes;
what I did was starting several downloads (onto a ext3 on /dev/hda1),
and then opening up a couple of websites in konqueror (which in turn uses
the proxy that also access /dev/hda1)


Again pdflush was consuming 100%, but this time I waited about 5mins and
pdflush behaved normal again ... just to start again later and disappear
again ...

I still have see the following messages on the serial console:

hda: lost interrupt
hda: dma_timer_expiry: dma status == 0x64
hda: DMA interrupt recovery

and also the same symptoms as before (network is working normal, USB
keyboard/mouse don't work). If you respond fast what commands I should
run, I can give you more info ...


Thanks,
   Max


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Hello Carlos,

Here is my weekly test: cvs 20040426.
Nothing new to mention: always well known errors collected after make -k
check. I just build a 2.6.6-_rc2_-pa2 (for the fun) without pb (which boot
fine on my b180)

Cheers,
    Joel

PS: 
> Yes, the default timeout is too short, add a TIMEOUTFACTOR of 5 or more.

This time I put TIMEOUTFACTOR=4 in the chroot root profile and seems to be
enough to bypass timeout errors :)


----------------------------------------------------------------------------------------
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> and also the same symptoms as before (network is working normal, USB
> keyboard/mouse don't work). If you respond fast what commands I should
> run, I can give you more info ...

hmm usb and ide seems to be on the same superio.

Joel

----------------------------------------------------------------------------------------
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On Tue, 27 Apr 2004, Joel Soete wrote:

> > and also the same symptoms as before (network is working normal, USB
> > keyboard/mouse don't work). If you respond fast what commands I should
> > run, I can give you more info ...
>
> hmm usb and ide seems to be on the same superio.

Also something other interesting:

I killed squid and all other processes that are trying to access /dev/hda,
so the kernel messages 'hda: lost interrupt' stopped (mostly) for now.
Also pdflush doesn't consume any (significant) CPU time anymore.

The system is quite stable again, but still no access to the serial
console login prompt, nor the USB devices are working. BTW, a
/proc/bus/usb/devices results in the following kernel message:

usb 2-1: control timeout on ep0in

... and the process hangs.

Attaching the USB keyboard/mouse to my PCI USB2.0 card suddenly gives that
kernel output:

Badness in ohci_endpoint_disable at drivers/usb/host/ohci-hcd.c:355
Kernel addresses on the stack:
 [<10125b48>] printk+0x188/0x1c8
 [<101063b8>] dump_stack+0x18/0x24
 [<10267970>] ohci_endpoint_disable+0xd0/0x1a0
 [<10121f70>] __wake_up_common+0x60/0xa8
 [<10257cf4>] hcd_endpoint_disable+0x114/0x1b8
 [<10121fd8>] __wake_up+0x20/0x38
 [<102592c8>] usb_disable_endpoint+0x80/0x88
 [<102593d4>] usb_disable_device+0x94/0xb4
 [<102536c4>] usb_disconnect+0x90/0x140
 [<10255d54>] hub_port_connect_change+0x2dc/0x2e0
 [<1025604c>] hub_events+0x2f4/0x39c
 [<10256150>] hub_thread+0x5c/0x128
 [<1010bc5c>] ret_from_kernel_thread+0x1c/0x24


Another interesting thing is that I'm unable to kill -9 the X-Server.
Also I had some problems getting the Voodoo2 card working with custom
refresh rate settings; if I did specify a modeline in XF86Config-4
(generated with the fbset command), the machine would crash and print out
"bug in superio.c".
However if I use fbset after X has been started, it works perfectly.


Might be a Voodoo2 problem after all, who knows ...



And now for something completely different!



The Changelog to 2.6.6-rc2 contains the following:

=== snip ===

<dsaxena@plexity.net>
  [PATCH] PCI: Allow arch-specific pci_set_dma_mask and friends

  The patch provides the ability for architectures to have custom
  implementations of pci_set_dma_mask() and friends (dac_set_dma_mask
  and set_consistent_dma_mask). The reason I need this is b/c I have
  a chipset (Intel ARM IXP425) that has a broken PCI interface that
  only allows PCI dma to/from the bottom 64MB of system memory.  To get
  around this limitation, I trap a custom dma-mapping implementation that
  bounces buffers outside the 64MB window. At device discover time, my
  custom platform_notify() function gets called and it sets the dma_mask
  to (64MB-1) and in ARM's dma-mapping code, I check for dma_mask != 0xffffffff
  and if that is true, I call the special bounce helpers. This works great
  except that certain drivers (e100, ide-pci) call pci_set_dma_mask()
  with 0xffffffff and the generic implementation only allows for the
  architecture-defined pci_dma_supported() to return true or false. There
  is no method for the architecture to tell the PCI layer "I can't set
  the mask to 0xffffffff, but I can set it to this other value" and there
  is no way to pass that back to the driver. What this means is that if
  I have pci_set_dma_supported() return failure on full 32-bit DMA, the
  driver will not initialize the card; however, if I return true,
  pci_set_dma_mask() will set the dma mask to full 32-bits and I can no
  longer trap and will have buffers that are not dma-able and cause
  PCI master aborts.  Both of those are not acceptable.  IMHO, the
  driver shouldn't care if the architecture has to bounce DMA outside of
  64MB and since this is not something most architectures have to worry
  about, the easiest way to get around the issue is by allowing custom
  pci_set_dma_mask() for arches that need it but keeping the generic
  implementation for those that do not.  In my case, it simply returns
  0 to the driver but keeps the device mask set to 64MB-1 so I can trap.
=== snap ===

Since I still have problems to get onboard IDE DMA correctly working on my
C3000 (kernel and hdparm both say enabled, but just 3MB/s transfer rate
instead of >40 MB/s), and since any other PCI IDE card complains about
lost interrupts (on 2.6) or also behave like the onboard IDE (on 2.4),
I thought maybe this is related to the issue



Thanks for your help,
   Max


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> The Changelog to 2.6.6-rc2 contains the following:

Well, I don't know about Matthew merge project but yesterday I apply the
upstream patch-2.6.6-rc1-rc2 (http://www.kernel.org/pub/linux/kernel/v2.6/testing/incr/patch-2.6.6-rc1-rc2.bz2)
against our pa tree and it is quiet straighforward (just have to redo by
hand the hunk related to arch/parisc/kernel/cache.c, very short and easy).

I boot it with success on my b180 :) (not yet on my b2k :( ) but I trust
you could try it also?

That said, knowing that my serial console works fine, there are two additional
hw pieces that you can try to remove one by one to locate accurately the
pb, though I don't have usb kbd/mouse to test)

hth,
    Joel




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> Here is my weekly test: cvs 20040426.
> Nothing new to mention: always well known errors collected after make -k
> check. I just build a 2.6.6-_rc2_-pa2 (for the fun) without pb (which boot
> fine on my b180)

You aren't seeing a failure in tst-timer4?
Can you verify this by running tst-timer4 by hand and sending the output
ot the list?

c.



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> You aren't seeing a failure in tst-timer4?

uhm ... No (definitely :^)

> Can you verify this by running tst-timer4 by hand and sending the output
> ot the list?
Yes naturally, here there are:

# ./tst-timer4 
clock_gettime returned timespec = { 1083087449, 554351000 }
clock_getres returned timespec = { 0, 10000000 }
# echo $?
0

Well duno if results are right (first line different on each test but the
second is constant with or without TIMEOUTFACTOR)?

Don't hesitate with more questions ;)

Joel

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On Tue, Apr 27, 2004 at 07:06:06PM +0200, Joel Soete wrote:
> > Can you verify this by running tst-timer4 by hand and sending the output
> > ot the list?
> Yes naturally, here there are:
> 
> # ./tst-timer4 
> clock_gettime returned timespec = { 1083087449, 554351000 }
> clock_getres returned timespec = { 0, 10000000 }
> # echo $?
> 0
> 
> Well duno if results are right (first line different on each test but the
> second is constant with or without TIMEOUTFACTOR)?
> 
> Don't hesitate with more questions ;)

Okay, it's a 64-bit kernel problem them. What kernel are you running
right now?

c.



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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
Date: 27 Apr 2004 12:15:48 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:21547

On Tue, 2004-04-27 at 12:11, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/04/27 11:11:39
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: entry.S 
> 	include/asm-parisc: page.h 
> 
> Log message:
> More assembler magic entry removal.
> 
> Also macro'ise the tlb miss handlers, making it much easier to
> alter them since all the information is collated in one place

===== arch/parisc/kernel/entry.S 1.15 vs edited =====
--- 1.15/arch/parisc/kernel/entry.S	Sun Apr 25 04:00:10 2004
+++ edited/arch/parisc/kernel/entry.S	Tue Apr 27 11:05:46 2004
@@ -40,11 +40,13 @@
 #ifdef __LP64__
 #define CMPIB           cmpib,*
 #define CMPB            cmpb,*
+#define COND(x)		*x
 
 	.level 2.0w
 #else
 #define CMPIB           cmpib,
 #define CMPB            cmpb,
+#define COND(x)		x
 
 	.level 2.0
 #endif
@@ -389,6 +391,208 @@
 	.align		32
 	.endm
 
+	/* The following are simple 32 vs 64 bit instruction
+	 * abstractions for the macros */
+	.macro		EXTR	reg1,start,length,reg2
+#ifdef __LP64__
+	extrd,u		\reg1,32+\start,\length,\reg2
+#else
+	extrw,u		\reg1,\start,\length,\reg2
+#endif
+	.endm
+
+	.macro		DEP	reg1,start,length,reg2
+#ifdef __LP64__
+	depd		\reg1,32+\start,\length,\reg2
+#else
+	depw		\reg1,\start,\length,\reg2
+#endif
+	.endm
+
+	.macro		DEPI	val,start,length,reg
+#ifdef __LP64__
+	depdi		\val,32+\start,\length,\reg
+#else
+	depwi		\val,\start,\length,\reg
+#endif
+	.endm
+
+	/* In LP64, the space contains part of the upper 32 bits of the
+	 * fault.  We have to extract this and place it in the va,
+	 * zeroing the corresponding bits in the space register */
+	.macro		space_adjust	spc,va,tmp
+#ifdef __LP64__
+	extrd,u		\spc,63,SPACEID_SHIFT,\tmp
+	depd		%r0,63,SPACEID_SHIFT,\spc
+	depd		\tmp,31,SPACEID_SHIFT,\va
+#endif
+	.endm
+
+	.import		swapper_pg_dir,code
+
+	/* Get the pgd.  For faults on space zero (kernel space), this
+	 * is simply swapper_pg_dir.  For user space faults, the
+	 * pgd is stored in %cr25 */
+	.macro		get_pgd		spc,reg
+	ldil		L%PA(swapper_pg_dir),\reg
+	ldo		R%PA(swapper_pg_dir)(\reg),\reg
+	or,COND(=)	%r0,\spc,%r0
+	mfctl		%cr25,\reg
+	.endm
+
+	/* Only allow faults on different spaces from the
+	 * currently active one if we're the kernel */
+	.macro		space_check	spc,tmp,fault
+	mfsp		%sr7,\tmp
+	or,COND(<>)	%r0,\spc,%r0	/* user may execute gateway page
+					 * as kernel, so defeat the space
+					 * check if it is */
+	copy		\spc,\tmp
+	or,COND(=)	%r0,\tmp,%r0	/* nullify if executing as kernel */
+	cmpb,COND(<>),n	\tmp,\spc,\fault
+	.endm
+
+	/* Look up a PTE in a 2-Level scheme (faulting at each
+	 * level if the entry isn't present */
+	.macro		L2_ptep	pmd,pte,index,va,fault
+	EXTR		\va,31-PMD_SHIFT,PAGE_SHIFT-BITS_PER_PMD,\index
+	copy		%r0,\pte
+	DEP		%r0,31,PAGE_SHIFT,\pmd	/* clear offset */
+	LDREG,s		\index(\pmd),\pmd
+	EXTR		\va,31-PAGE_SHIFT,PAGE_SHIFT-BITS_PER_PTE,\index
+	bb,>=,n		\pmd,_PAGE_PRESENT_BIT,\fault
+	DEP		%r0,31,PAGE_SHIFT,\pmd	/* clear offset */
+	shladd		\index,BITS_PER_PTE,\pmd,\pmd
+	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
+	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
+	.endm
+
+	/* Look up PTE in a 3-Level scheme */
+	.macro		L3_ptep pgd,pte,index,va,fault
+	extrd,u		\va,63-PGDIR_SHIFT,PAGE_SHIFT-BITS_PER_PGD,\index
+	copy		%r0,\pte
+	ldd,s		\index(\pgd),\pgd
+	bb,>=,n		\pgd,_PAGE_PRESENT_BIT,\fault
+	L2_ptep		\pgd,\pte,\index,\va,\fault
+	.endm
+
+	/* Set the _PAGE_ACCESSED bit of the PTE.  Be clever and
+	 * don't needlessly dirty the cache line if it was already set */
+	.macro		update_ptep	ptep,pte,tmp,tmp1
+	ldi		_PAGE_ACCESSED,\tmp1
+	or		\tmp1,\pte,\tmp
+	and,COND(<>)	\tmp1,\pte,%r0
+	STREG		\tmp,0(\ptep)
+	.endm
+
+	/* Set the dirty bit (and accessed bit).  No need to be
+	 * clever, this is only used from the dirty fault */
+	.macro		update_dirty	ptep,pte,tmp,tmp1
+	ldi		_PAGE_ACCESSED|_PAGE_DIRTY,\tmp
+	or		\tmp,\pte,\pte
+	STREG		\pte,0(\ptep)
+	.endm
+
+	/* Convert the pte and prot to tlb insertion values.  How
+	 * this happens is quite subtle, read below */
+	.macro		make_insert_tlb	spc,pte,prot
+	space_to_prot   \spc \prot        /* create prot id from space */
+	/* The following is the real subtlety.  This is depositing
+	 * T <-> _PAGE_REFTRAP
+	 * D <-> _PAGE_DIRTY
+	 * B <-> _PAGE_DMB (memory break)
+	 *
+	 * Then incredible subtlety: The access rights are
+	 * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
+	 * See 3-14 of the parisc 2.0 manual
+	 *
+	 * Finally, _PAGE_READ goes in the top bit of PL1 (so we
+	 * trigger an access rights trap in user space if the user
+	 * tries to read an unreadable page */
+	depd            \pte,8,7,\prot
+
+	/* PAGE_USER indicates the page can be read with user privileges,
+	 * so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1
+	 * contains _PAGE_READ */
+	extrd,u,*=      \pte,_PAGE_USER_BIT+32,1,%r0
+	depdi		7,11,3,\prot
+	/* If we're a gateway page, drop PL2 back to zero for promotion
+	 * to kernel privilege (so we can execute the page as kernel).
+	 * Any privilege promotion page always denys read and write */
+	extrd,u,*= 	\pte,_PAGE_GATEWAY_BIT+32,1,%r0
+	depd		%r0,11,2,\prot	/* If Gateway, Set PL2 to 0 */
+
+	/* Get rid of prot bits and convert to page addr for iitlbt */
+
+	depd		%r0,63,PAGE_SHIFT,\pte
+	extrd,u		\pte,56,32,\pte
+	.endm
+
+	/* Identical macro to make_insert_tlb above, except it
+	 * makes the tlb entry for the differently formatted pa11
+	 * insertion instructions */
+	.macro		make_insert_tlb_11	spc,pte,prot
+	zdep		\spc,30,15,\prot
+	dep		\pte,8,7,\prot
+	extru,=		\pte,_PAGE_NO_CACHE_BIT,1,%r0
+	depi		1,12,1,\prot
+	extru,=         \pte,_PAGE_USER_BIT,1,%r0
+	depi		7,11,3,\prot   /* Set for user space (1 rsvd for read) */
+	extru,= 	\pte,_PAGE_GATEWAY_BIT,1,%r0
+	depi		0,11,2,\prot	/* If Gateway, Set PL2 to 0 */
+
+	/* Get rid of prot bits and convert to page addr for iitlba */
+
+	depi		0,31,12,\pte
+	extru		\pte,24,25,\pte
+
+	.endm
+
+	/* This is for ILP32 PA2.0 only.  The TLB insertion needs
+	 * to extend into I/O space if the address is 0xfXXXXXXX
+	 * so we extend the f's into the top word of the pte in
+	 * this case */
+	.macro		f_extend	pte,tmp
+	extrd,s		\pte,44,4,\tmp
+	addi,<>		1,\tmp,%r0
+	extrd,s		\pte,63,32,\pte
+	.endm
+
+	/* The alias region is an 8MB aligned 16MB to do clear and
+	 * copy user pages at addresses congruent with the user
+	 * virtual address.
+	 *
+	 * To use the alias page, you set %r26 up with the to TLB
+	 * entry (identifying the physical page) and %r23 up with
+	 * the from tlb entry (or nothing if only a to entry---for
+	 * clear_user_page_asm) */
+	.macro		do_alias	spc,tmp,tmp1,va,pte,prot,fault
+	cmpib,COND(<>),n 0,\spc,\fault
+	ldil		L%(TMPALIAS_MAP_START),\tmp
+#if defined(__LP64__) && (TMPALIAS_MAP_START >= 0x80000000)
+	/* on LP64, ldi will sign extend into the upper 32 bits,
+	 * which is behaviour we don't want */
+	depdi		0,31,32,\tmp
+#endif
+	copy		\va,\tmp1
+	DEPI		0,31,23,\tmp1
+	cmpb,COND(<>),n	\tmp,\tmp1,\fault
+	ldi		(_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot
+	depd,z		\prot,8,7,\prot
+	/*
+	 * OK, it is in the temp alias region, check whether "from" or "to".
+	 * Check "subtle" note in pacache.S re: r23/r26.
+	 */
+#ifdef __LP64__
+	extrd,u,*=	\va,41,1,%r0
+#else
+	extrw,u,=	\va,9,1,%r0
+#endif
+	or,COND(tr)	%r23,%r0,\pte
+	or		%r26,%r0,\pte
+	.endm 
+
+
 	/*
 	 * Align fault_vector_20 on 4K boundary so that both
 	 * fault_vector_11 and fault_vector_20 are on the
@@ -979,85 +1183,23 @@
 #ifdef __LP64__
 
 dtlb_miss_20w:
-	extrd,u         spc,63,7,t1     /* adjust va */
-	depd            t1,31,7,va      /* adjust va */
-	depdi           0,63,7,spc      /* adjust space */
-	mfctl           %cr25,ptp	/* Assume user space miss */
-	or,*<>          %r0,spc,%r0     /* If it is user space, nullify */
-	mfctl           %cr24,ptp	/* Load kernel pgd instead */
-	extrd,u         va,33,9,t1      /* Get pgd index */
-
-	mfsp            %sr7,t0		/* Get current space */
-	or,*=           %r0,t0,%r0      /* If kernel, nullify following test */
-	cmpb,*<>,n       t0,spc,dtlb_fault /* forward */
-
-	/* First level page table lookup */
-
-	ldd,s           t1(ptp),ptp
-	extrd,u         va,42,9,t0     /* get second-level index */
-	bb,>=,n         ptp,_PAGE_PRESENT_BIT,dtlb_check_alias_20w
-	depdi           0,63,12,ptp     /* clear prot bits */
-
-	/* Second level page table lookup */
-
-	ldd,s           t0(ptp),ptp
-	extrd,u         va,51,9,t0     /* get third-level index */
-	bb,>=,n         ptp,_PAGE_PRESENT_BIT,dtlb_check_alias_20w
-	depdi           0,63,12,ptp     /* clear prot bits */
-
-	/* Third level page table lookup */
-
-	shladd           t0,3,ptp,ptp
-	ldi		_PAGE_ACCESSED,t1
-	ldd              0(ptp),pte
-	bb,>=,n          pte,_PAGE_PRESENT_BIT,dtlb_check_alias_20w
-
-	/* Check whether the "accessed" bit was set, otherwise do so */
-
-	or		t1,pte,t0	/* t0 has R bit set */
-	and,*<>         t1,pte,%r0      /* test and nullify if already set */
-	std             t0,0(ptp)       /* write back pte */
-
-	space_to_prot   spc prot        /* create prot id from space */
-	depd            pte,8,7,prot    /* add in prot bits from pte */
-
-	extrd,u,*=      pte,_PAGE_USER_BIT+32,1,r0
-	depdi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
-	extrd,u,*= 	pte,_PAGE_GATEWAY_BIT+32,1,r0
-	depdi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
+	space_adjust	spc,va,t0
+	get_pgd		spc,ptp
+	space_check	spc,t0,dtlb_fault
 
-	/* Get rid of prot bits and convert to page addr for idtlbt */
+	L3_ptep		ptp,pte,t0,va,dtlb_check_alias_20w
 
-	depdi		0,63,12,pte
-	extrd,u         pte,56,52,pte
+	update_ptep	ptp,pte,t0,t1
+
+	make_insert_tlb	spc,pte,prot
+	
 	idtlbt          pte,prot
 
 	rfir
 	nop
 
 dtlb_check_alias_20w:
-
-	/* Check to see if fault is in the temporary alias region */
-
-	cmpib,*<>,n     0,spc,dtlb_fault /* forward */
-	ldil            L%(TMPALIAS_MAP_START),t0
-#if (TMPALIAS_MAP_START >= 0x80000000)
-	depdi		0,31,32,t0	/* clear any sign extension */
-#endif
-	copy            va,t1
-	depdi           0,63,23,t1
-	cmpb,*<>,n      t0,t1,dtlb_fault /* forward */
-	ldi             (_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),prot
-	depd,z          prot,8,7,prot
-
-	/*
-	 * OK, it is in the temp alias region, check whether "from" or "to".
-	 * Check "subtle" note in pacache.S re: r23/r26.
-	 */
-
-	extrd,u,*=      va,41,1,r0
-	or,*tr          %r23,%r0,pte    /* If "from" use "from" page */
-	or,*            %r26,%r0,pte    /* else "to", use "to" page  */
+	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault
 
 	idtlbt          pte,prot
 
@@ -1065,51 +1207,16 @@
 	nop
 
 nadtlb_miss_20w:
-	extrd,u         spc,63,7,t1     /* adjust va */
-	depd            t1,31,7,va      /* adjust va */
-	depdi           0,63,7,spc      /* adjust space */
-	mfctl           %cr25,ptp	/* Assume user space miss */
-	or,*<>          %r0,spc,%r0     /* If it is user space, nullify */
-	mfctl           %cr24,ptp	/* Load kernel pgd instead */
-	extrd,u         va,33,9,t1      /* Get pgd index */
-
-	mfsp            %sr7,t0		/* Get current space */
-	or,*=           %r0,t0,%r0      /* If kernel, nullify following test */
-	cmpb,*<>,n       t0,spc,nadtlb_fault /* forward */
-
-	/* First level page table lookup */
-
-	ldd,s           t1(ptp),ptp
-	extrd,u         va,42,9,t0     /* get second-level index */
-	bb,>=,n         ptp,_PAGE_PRESENT_BIT,nadtlb_emulate
-	depdi           0,63,12,ptp     /* clear prot bits */
-
-	/* Second level page table lookup */
-
-	ldd,s           t0(ptp),ptp
-	extrd,u         va,51,9,t0     /* get third-level index */
-	bb,>=,n         ptp,_PAGE_PRESENT_BIT,nadtlb_emulate
-	depdi           0,63,12,ptp     /* clear prot bits */
-
-	/* Third level page table lookup */
-
-	shladd           t0,3,ptp,ptp
-	ldi		_PAGE_ACCESSED,t1
-	ldd              0(ptp),pte
-	bb,>=,n          pte,_PAGE_PRESENT_BIT,nadtlb_check_flush_20w
-
-	space_to_prot   spc prot        /* create prot id from space */
-	depd            pte,8,7,prot    /* add in prot bits from pte */
-
-	extrd,u,*=      pte,_PAGE_USER_BIT+32,1,r0
-	depdi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
-	extrd,u,*= 	pte,_PAGE_GATEWAY_BIT+32,1,r0
-	depdi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
+	space_adjust	spc,va,t0
+	get_pgd		spc,ptp
+	space_check	spc,t0,nadtlb_fault
 
-	/* Get rid of prot bits and convert to page addr for idtlbt */
+	L3_ptep		ptp,pte,t0,va,nadtlb_check_flush_20w
+
+	update_ptep	ptp,pte,t0,t1
+
+	make_insert_tlb	spc,pte,prot
 
-	depdi		0,63,12,pte
-	extrd,u         pte,56,52,pte
 	idtlbt          pte,prot
 
 	rfir
@@ -1135,49 +1242,15 @@
 #else
 
 dtlb_miss_11:
-	mfctl           %cr25,ptp	/* Assume user space miss */
-	or,<>           %r0,spc,%r0	/* If it is user space, nullify */
-	mfctl           %cr24,ptp	/* Load kernel pgd instead */
-	extru		va,9,10,t1	/* Get pgd index */
-
-	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,dtlb_fault /* forward */
-
-	/* First level page table lookup */
-
-	ldwx,s		t1(ptp),ptp
-	extru		va,19,10,t0	/* get second-level index */
-	bb,>=,n         ptp,_PAGE_PRESENT_BIT,dtlb_check_alias_11
-	depi		0,31,12,ptp	/* clear prot bits */
-
-	/* Second level page table lookup */
-
-	sh2addl 	 t0,ptp,ptp
-	ldi		_PAGE_ACCESSED,t1
-	ldw		 0(ptp),pte
-	bb,>=,n          pte,_PAGE_PRESENT_BIT,dtlb_check_alias_11
-
-	/* Check whether the "accessed" bit was set, otherwise do so */
-
-	or		t1,pte,t0	/* t0 has R bit set */
-	and,<>		t1,pte,%r0	/* test and nullify if already set */
-	stw		t0,0(ptp)	/* write back pte */
-
-	zdep            spc,30,15,prot  /* create prot id from space */
-	dep             pte,8,7,prot    /* add in prot bits from pte */
-
-	extru,=		pte,_PAGE_NO_CACHE_BIT,1,r0
-	depi		1,12,1,prot
-	extru,=         pte,_PAGE_USER_BIT,1,r0
-	depi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
-	extru,= 	pte,_PAGE_GATEWAY_BIT,1,r0
-	depi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
+	get_pgd		spc,ptp
 
-	/* Get rid of prot bits and convert to page addr for idtlba */
+	space_check	spc,t0,dtlb_fault
 
-	depi		0,31,12,pte
-	extru		pte,24,25,pte
+	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_11
+
+	update_ptep	ptp,pte,t0,t1
+
+	make_insert_tlb_11	spc,pte,prot
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
@@ -1218,43 +1291,16 @@
 	nop
 
 nadtlb_miss_11:
-	mfctl           %cr25,ptp	/* Assume user space miss */
-	or,<>           %r0,spc,%r0	/* If it is user space, nullify */
-	mfctl           %cr24,ptp	/* Load kernel pgd instead */
-	extru		va,9,10,t1	/* Get pgd index */
-
-	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,nadtlb_fault /* forward */
-
-	/* First level page table lookup */
-
-	ldwx,s		t1(ptp),ptp
-	extru		va,19,10,t0	/* get second-level index */
-	bb,>=,n         ptp,_PAGE_PRESENT_BIT,nadtlb_emulate
-	depi		0,31,12,ptp	/* clear prot bits */
-
-	/* Second level page table lookup */
-
-	sh2addl 	 t0,ptp,ptp
-	ldi		_PAGE_ACCESSED,t1
-	ldw		 0(ptp),pte
-	bb,>=,n          pte,_PAGE_PRESENT_BIT,nadtlb_check_flush_11
-
-	zdep            spc,30,15,prot  /* create prot id from space */
-	dep             pte,8,7,prot    /* add in prot bits from pte */
-
-	extru,=		pte,_PAGE_NO_CACHE_BIT,1,r0
-	depi		1,12,1,prot
-	extru,=         pte,_PAGE_USER_BIT,1,r0
-	depi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
-	extru,= 	pte,_PAGE_GATEWAY_BIT,1,r0
-	depi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
+	get_pgd		spc,ptp
 
-	/* Get rid of prot bits and convert to page addr for idtlba */
+	space_check	spc,t0,nadtlb_fault
+
+	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_11
+
+	update_ptep	ptp,pte,t0,t1
+
+	make_insert_tlb_11	spc,pte,prot
 
-	depi		0,31,12,pte
-	extru		pte,24,25,pte
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
@@ -1292,120 +1338,44 @@
 	nop
 
 dtlb_miss_20:
-	mfctl           %cr25,ptp	/* Assume user space miss */
-	or,<>           %r0,spc,%r0	/* If it is user space, nullify */
-	mfctl           %cr24,ptp	/* Load kernel pgd instead */
-	extru		va,9,10,t1	/* Get pgd index */
-
-	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,dtlb_fault /* forward */
-
-	/* First level page table lookup */
-
-	ldwx,s		t1(ptp),ptp
-	extru		va,19,10,t0	/* get second-level index */
-	bb,>=,n         ptp,_PAGE_PRESENT_BIT,dtlb_check_alias_20
-	depi		0,31,12,ptp	/* clear prot bits */
-
-	/* Second level page table lookup */
-
-	sh2addl 	 t0,ptp,ptp
-	ldi		_PAGE_ACCESSED,t1
-	ldw		 0(ptp),pte
-	bb,>=,n          pte,_PAGE_PRESENT_BIT,dtlb_check_alias_20
-
-	/* Check whether the "accessed" bit was set, otherwise do so */
-
-	or		t1,pte,t0	/* t0 has R bit set */
-	and,<>		t1,pte,%r0	/* test and nullify if already set */
-	stw		t0,0(ptp)	/* write back pte */
-
-	space_to_prot   spc prot        /* create prot id from space */
-	depd            pte,8,7,prot    /* add in prot bits from pte */
-
-	extrd,u,*=      pte,_PAGE_USER_BIT+32,1,r0
-	depdi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
-	extrd,u,*= 	pte,_PAGE_GATEWAY_BIT+32,1,r0
-	depdi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
+	space_adjust	spc,va,t0
+	get_pgd		spc,ptp
+	space_check	spc,t0,dtlb_fault
 
-	/* Get rid of prot bits and convert to page addr for idtlbt */
+	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_20
+
+	update_ptep	ptp,pte,t0,t1
+
+	make_insert_tlb	spc,pte,prot
+
+	f_extend	pte,t0
 
-	extrd,s         pte,35,4,t0
-	depdi		0,63,12,pte	/* clear lower 12 bits */
-        addi,=          1,t0,0 
-        extrd,u,*tr     pte,56,25,pte 
-	extrd,s		pte,56,25,pte	/* bit 31:8 >> 8  */ 
 	idtlbt          pte,prot
 
 	rfir
 	nop
 
 dtlb_check_alias_20:
-
-	/* Check to see if fault is in the temporary alias region */
-
-	cmpib,<>,n      0,spc,dtlb_fault /* forward */
-	ldil            L%(TMPALIAS_MAP_START),t0
-	copy            va,t1
-	depwi           0,31,23,t1
-	cmpb,<>,n       t0,t1,dtlb_fault /* forward */
-	ldi             (_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),prot
-	depd,z          prot,8,7,prot
-
-	/*
-	 * OK, it is in the temp alias region, check whether "from" or "to".
-	 * Check "subtle" note in pacache.S re: r23/r26.
-	 */
-
-	extrw,u,=       va,9,1,r0
-	or,tr           %r23,%r0,pte    /* If "from" use "from" page */
-	or              %r26,%r0,pte    /* else "to", use "to" page  */
-
+	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault
+	
 	idtlbt          pte,prot
 
 	rfir
 	nop
 
 nadtlb_miss_20:
-	mfctl           %cr25,ptp	/* Assume user space miss */
-	or,<>           %r0,spc,%r0	/* If it is user space, nullify */
-	mfctl           %cr24,ptp	/* Load kernel pgd instead */
-	extru		va,9,10,t1	/* Get pgd index */
-
-	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,nadtlb_fault /* forward */
-
-	/* First level page table lookup */
-
-	ldwx,s		t1(ptp),ptp
-	extru		va,19,10,t0	/* get second-level index */
-	bb,>=,n         ptp,_PAGE_PRESENT_BIT,nadtlb_emulate
-	depi		0,31,12,ptp	/* clear prot bits */
-
-	/* Second level page table lookup */
-
-	sh2addl 	 t0,ptp,ptp
-	ldi		_PAGE_ACCESSED,t1
-	ldw		 0(ptp),pte
-	bb,>=,n          pte,_PAGE_PRESENT_BIT,nadtlb_check_flush_20
-
-	space_to_prot   spc prot        /* create prot id from space */
-	depd            pte,8,7,prot    /* add in prot bits from pte */
-
-	extrd,u,*=      pte,_PAGE_USER_BIT+32,1,r0
-	depdi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
-	extrd,u,*= 	pte,_PAGE_GATEWAY_BIT+32,1,r0
-	depdi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
+	get_pgd		spc,ptp
 
-	/* Get rid of prot bits and convert to page addr for idtlbt */
+	space_check	spc,t0,nadtlb_fault
+
+	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_20
 
-        extrd,s         pte,35,4,t0
-        depdi           0,63,12,pte     /* clear lower 12 bits */
-        addi,=          1,t0,0
-        extrd,u,*tr     pte,56,25,pte
-        extrd,s         pte,56,25,pte   /* bit 31:8 >> 8  */
+	update_ptep	ptp,pte,t0,t1
+
+	make_insert_tlb	spc,pte,prot
+
+	f_extend	pte,t0
+	
         idtlbt          pte,prot
 
 	rfir
@@ -1478,119 +1448,33 @@
 	 * on the gateway page which is in the kernel address space.
 	 */
 
-	extrd,u         spc,63,7,t1     /* adjust va */
-	depd            t1,31,7,va      /* adjust va */
-	depdi           0,63,7,spc      /* adjust space */
-	cmpib,*=        0,spc,itlb_miss_kernel_20w
-	extrd,u         va,33,9,t1      /* Get pgd index */
-
-	mfctl           %cr25,ptp	/* load user pgd */
-
-	mfsp            %sr7,t0		/* Get current space */
-	or,*=           %r0,t0,%r0      /* If kernel, nullify following test */
-	cmpb,*<>,n      t0,spc,itlb_fault /* forward */
-
-	/* First level page table lookup */
-
-itlb_miss_common_20w:
-	ldd,s           t1(ptp),ptp
-	extrd,u         va,42,9,t0     /* get second-level index */
-	bb,>=,n 	ptp,_PAGE_PRESENT_BIT,itlb_fault
-	depdi           0,63,12,ptp     /* clear prot bits */
-
-	/* Second level page table lookup */
+	space_adjust	spc,va,t0
+	get_pgd		spc,ptp
+	space_check	spc,t0,itlb_fault
 
-	ldd,s           t0(ptp),ptp
-	extrd,u         va,51,9,t0     /* get third-level index */
-	bb,>=,n         ptp,_PAGE_PRESENT_BIT,itlb_fault
-	depdi           0,63,12,ptp     /* clear prot bits */
+	L3_ptep		ptp,pte,t0,va,itlb_fault
 
-	/* Third level page table lookup */
+	update_ptep	ptp,pte,t0,t1
 
-	shladd           t0,3,ptp,ptp
-	ldi		_PAGE_ACCESSED,t1
-	ldd              0(ptp),pte
-	bb,>=,n          pte,_PAGE_PRESENT_BIT,itlb_fault
-
-	/* Check whether the "accessed" bit was set, otherwise do so */
-
-	or		t1,pte,t0	/* t0 has R bit set */
-	and,*<>         t1,pte,%r0      /* test and nullify if already set */
-	std             t0,0(ptp)       /* write back pte */
-
-	space_to_prot   spc prot        /* create prot id from space */
-	depd            pte,8,7,prot    /* add in prot bits from pte */
-
-	extrd,u,*=      pte,_PAGE_USER_BIT+32,1,r0
-	depdi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
-	extrd,u,*= 	pte,_PAGE_GATEWAY_BIT+32,1,r0
-	depdi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
-
-	/* Get rid of prot bits and convert to page addr for iitlbt */
-
-	depdi		0,63,12,pte
-	extrd,u         pte,56,32,pte
+	make_insert_tlb	spc,pte,prot
+	
 	iitlbt          pte,prot
 
 	rfir
 	nop
 
-itlb_miss_kernel_20w:
-	b               itlb_miss_common_20w
-	mfctl           %cr24,ptp	/* Load kernel pgd */
 #else
 
 itlb_miss_11:
+	get_pgd		spc,ptp
 
-	/*
-	 * I miss is a little different, since we allow users to fault
-	 * on the gateway page which is in the kernel address space.
-	 */
-
-	cmpib,=         0,spc,itlb_miss_kernel_11
-	extru		va,9,10,t1	/* Get pgd index */
-
-	mfctl           %cr25,ptp	/* load user pgd */
-
-	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,itlb_fault /* forward */
+	space_check	spc,t0,itlb_fault
 
-	/* First level page table lookup */
+	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-itlb_miss_common_11:
-	ldwx,s		t1(ptp),ptp
-	extru		va,19,10,t0	/* get second-level index */
-	bb,>=,n 	ptp,_PAGE_PRESENT_BIT,itlb_fault
-	depi		0,31,12,ptp	/* clear prot bits */
+	update_ptep	ptp,pte,t0,t1
 
-	/* Second level page table lookup */
-
-	sh2addl 	 t0,ptp,ptp
-	ldi		_PAGE_ACCESSED,t1
-	ldw		 0(ptp),pte
-	bb,>=,n 	 pte,_PAGE_PRESENT_BIT,itlb_fault
-
-	/* Check whether the "accessed" bit was set, otherwise do so */
-
-	or		t1,pte,t0	/* t0 has R bit set */
-	and,<>		t1,pte,%r0	/* test and nullify if already set */
-	stw		t0,0(ptp)	/* write back pte */
-
-	zdep            spc,30,15,prot  /* create prot id from space */
-	dep             pte,8,7,prot    /* add in prot bits from pte */
-
-	extru,=		pte,_PAGE_NO_CACHE_BIT,1,r0
-	depi		1,12,1,prot
-	extru,=         pte,_PAGE_USER_BIT,1,r0
-	depi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
-	extru,= 	pte,_PAGE_GATEWAY_BIT,1,r0
-	depi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
-
-	/* Get rid of prot bits and convert to page addr for iitlba */
-
-	depi		0,31,12,pte
-	extru		pte,24,25,pte
+	make_insert_tlb_11	spc,pte,prot
 
 	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
@@ -1603,106 +1487,35 @@
 	rfir
 	nop
 
-itlb_miss_kernel_11:
-	b               itlb_miss_common_11
-	mfctl           %cr24,ptp	/* Load kernel pgd */
-
 itlb_miss_20:
+	get_pgd		spc,ptp
 
-	/*
-	 * I miss is a little different, since we allow users to fault
-	 * on the gateway page which is in the kernel address space.
-	 */
-
-	cmpib,=         0,spc,itlb_miss_kernel_20
-	extru		va,9,10,t1	/* Get pgd index */
-
-	mfctl           %cr25,ptp	/* load user pgd */
+	space_check	spc,t0,itlb_fault
 
-	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,itlb_fault /* forward */
+	L2_ptep		ptp,pte,t0,va,itlb_fault
 
-	/* First level page table lookup */
+	update_ptep	ptp,pte,t0,t1
 
-itlb_miss_common_20:
-	ldwx,s		t1(ptp),ptp
-	extru		va,19,10,t0	/* get second-level index */
-	bb,>=,n 	ptp,_PAGE_PRESENT_BIT,itlb_fault
-	depi		0,31,12,ptp	/* clear prot bits */
+	make_insert_tlb	spc,pte,prot
 
-	/* Second level page table lookup */
+	f_extend	pte,t0	
 
-	sh2addl 	 t0,ptp,ptp
-	ldi		_PAGE_ACCESSED,t1
-	ldw		 0(ptp),pte
-	bb,>=,n 	 pte,_PAGE_PRESENT_BIT,itlb_fault
-
-	/* Check whether the "accessed" bit was set, otherwise do so */
-
-	or		t1,pte,t0	/* t0 has R bit set */
-	and,<>		t1,pte,%r0	/* test and nullify if already set */
-	stw		t0,0(ptp)	/* write back pte */
-
-	space_to_prot   spc prot        /* create prot id from space */
-	depd            pte,8,7,prot    /* add in prot bits from pte */
-
-	extrd,u,*=      pte,_PAGE_USER_BIT+32,1,r0
-	depdi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
-	extrd,u,*= 	pte,_PAGE_GATEWAY_BIT+32,1,r0
-	depdi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
-
-	/* Get rid of prot bits and convert to page addr for iitlbt */
-
-        extrd,s         pte,35,4,t0 
-        depdi           0,63,12,pte     /* clear lower 12 bits */
-        addi,=          1,t0,0
-        extrd,u,*tr     pte,56,25,pte 
-        extrd,s         pte,56,25,pte   /* bit 31:8 >> 8  */
 	iitlbt          pte,prot
 
 	rfir
 	nop
 
-
-itlb_miss_kernel_20:
-	b               itlb_miss_common_20
-	mfctl           %cr24,ptp	/* Load kernel pgd */
 #endif
 
 #ifdef __LP64__
 
 dbit_trap_20w:
-	extrd,u         spc,63,7,t1     /* adjust va */
-	depd            t1,31,7,va      /* adjust va */
-	depdi           0,1,2,va        /* adjust va */
-	depdi           0,63,7,spc      /* adjust space */
-	mfctl           %cr25,ptp	/* Assume user space miss */
-	or,*<>          %r0,spc,%r0     /* If it is user space, nullify */
-	mfctl           %cr24,ptp	/* Load kernel pgd instead */
-	extrd,u         va,33,9,t1      /* Get pgd index */
-
-	mfsp            %sr7,t0		/* Get current space */
-	or,*=           %r0,t0,%r0      /* If kernel, nullify following test */
-	cmpb,*<>,n       t0,spc,dbit_fault /* forward */
-
-	/* First level page table lookup */
-
-	ldd,s           t1(ptp),ptp
-	extrd,u         va,42,9,t0     /* get second-level index */
-	bb,>=,n         ptp,_PAGE_PRESENT_BIT,dbit_fault
-	depdi           0,63,12,ptp     /* clear prot bits */
-
-	/* Second level page table lookup */
-
-	ldd,s           t0(ptp),ptp
-	extrd,u         va,51,9,t0     /* get third-level index */
-	bb,>=,n         ptp,_PAGE_PRESENT_BIT,dbit_fault
-	depdi           0,63,12,ptp     /* clear prot bits */
+	space_adjust	spc,va,t0
+	get_pgd		spc,ptp
+	space_check	spc,t0,dbit_fault
 
-	/* Third level page table lookup */
+	L3_ptep		ptp,pte,t0,va,dbit_fault
 
-	shladd           t0,3,ptp,ptp
 #ifdef CONFIG_SMP
 	CMPIB=,n        0,spc,dbit_nolock_20w
 	ldil            L%PA(pa_dbit_lock),t0
@@ -1715,27 +1528,10 @@
 
 dbit_nolock_20w:
 #endif
-	ldi		(_PAGE_ACCESSED|_PAGE_DIRTY),t1
-	ldd              0(ptp),pte
-	bb,>=,n          pte,_PAGE_PRESENT_BIT,dbit_fault
-
-	/* Set Accessed and Dirty bits in the pte */
-
-	or		t1,pte,pte
-	std             pte,0(ptp)      /* write back pte */
-
-	space_to_prot   spc prot        /* create prot id from space */
-	depd            pte,8,7,prot    /* add in prot bits from pte */
-
-	extrd,u,*=      pte,_PAGE_USER_BIT+32,1,r0
-	depdi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
-	extrd,u,*= 	pte,_PAGE_GATEWAY_BIT+32,1,r0
-	depdi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
+	update_dirty	ptp,pte,t0,t1
 
-	/* Get rid of prot bits and convert to page addr for idtlbt */
-
-	depdi		0,63,12,pte
-	extrd,u         pte,56,52,pte
+	make_insert_tlb	spc,pte,prot
+		
 	idtlbt          pte,prot
 #ifdef CONFIG_SMP
 	CMPIB=,n        0,spc,dbit_nounlock_20w
@@ -1750,25 +1546,13 @@
 #else
 
 dbit_trap_11:
-	mfctl           %cr25,ptp	/* Assume user space trap */
-	or,<>           %r0,spc,%r0	/* If it is user space, nullify */
-	mfctl           %cr24,ptp	/* Load kernel pgd instead */
-	extru		va,9,10,t1	/* Get pgd index */
-
-	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,dbit_fault /* forward */
 
-	/* First level page table lookup */
+	get_pgd		spc,ptp
 
-	ldwx,s		t1(ptp),ptp
-	extru		va,19,10,t0	/* get second-level index */
-	bb,>=,n 	ptp,_PAGE_PRESENT_BIT,dbit_fault
-	depi		0,31,12,ptp	/* clear prot bits */
+	space_check	spc,t0,dbit_fault
 
-	/* Second level page table lookup */
+	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-	sh2addl 	 t0,ptp,ptp
 #ifdef CONFIG_SMP
 	CMPIB=,n        0,spc,dbit_nolock_11
 	ldil            L%PA(pa_dbit_lock),t0
@@ -1781,29 +1565,9 @@
 
 dbit_nolock_11:
 #endif
-	ldi		(_PAGE_ACCESSED|_PAGE_DIRTY),t1
-	ldw		 0(ptp),pte
-	bb,>=,n 	 pte,_PAGE_PRESENT_BIT,dbit_fault
-
-	/* Set Accessed and Dirty bits in the pte */
-
-	or		t1,pte,pte
-	stw		pte,0(ptp)	/* write back pte */
-
-	zdep            spc,30,15,prot  /* create prot id from space */
-	dep             pte,8,7,prot    /* add in prot bits from pte */
-
-	extru,=		pte,_PAGE_NO_CACHE_BIT,1,r0
-	depi		1,12,1,prot
-	extru,=         pte,_PAGE_USER_BIT,1,r0
-	depi		7,11,3,prot /* Set for user space (1 rsvd for read) */
-	extru,= 	pte,_PAGE_GATEWAY_BIT,1,r0
-	depi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
-
-	/* Get rid of prot bits and convert to page addr for idtlba */
+	update_dirty	ptp,pte,t0,t1
 
-	depi		0,31,12,pte
-	extru		pte,24,25,pte
+	make_insert_tlb_11	spc,pte,prot
 
 	mfsp            %sr1,t1  /* Save sr1 so we can use it in tlb inserts */
 	mtsp		spc,%sr1
@@ -1824,25 +1588,12 @@
 	nop
 
 dbit_trap_20:
-	mfctl           %cr25,ptp	/* Assume user space trap */
-	or,<>           %r0,spc,%r0	/* If it is user space, nullify */
-	mfctl           %cr24,ptp	/* Load kernel pgd instead */
-	extru		va,9,10,t1	/* Get pgd index */
+	get_pgd		spc,ptp
 
-	mfsp            %sr7,t0		/* Get current space */
-	or,=            %r0,t0,%r0	/* If kernel, nullify following test */
-	cmpb,<>,n       t0,spc,dbit_fault /* forward */
+	space_check	spc,t0,dbit_fault
 
-	/* First level page table lookup */
+	L2_ptep		ptp,pte,t0,va,dbit_fault
 
-	ldwx,s		t1(ptp),ptp
-	extru		va,19,10,t0	/* get second-level index */
-	bb,>=,n 	ptp,_PAGE_PRESENT_BIT,dbit_fault
-	depi		0,31,12,ptp	/* clear prot bits */
-
-	/* Second level page table lookup */
-
-	sh2addl 	 t0,ptp,ptp
 #ifdef CONFIG_SMP
 	CMPIB=,n        0,spc,dbit_nolock_20
 	ldil            L%PA(pa_dbit_lock),t0
@@ -1855,28 +1606,12 @@
 
 dbit_nolock_20:
 #endif
-	ldi		(_PAGE_ACCESSED|_PAGE_DIRTY),t1
-	ldw		 0(ptp),pte
-	bb,>=,n 	 pte,_PAGE_PRESENT_BIT,dbit_fault
-
-	/* Set Accessed and Dirty bits in the pte */
-
-	or		t1,pte,pte
-	stw		pte,0(ptp)	/* write back pte */
-
-	space_to_prot   spc prot        /* create prot id from space */
-	depd            pte,8,7,prot    /* add in prot bits from pte */
-
-	extrd,u,*=      pte,_PAGE_USER_BIT+32,1,r0
-	depdi		7,11,3,prot   /* Set for user space (1 rsvd for read) */
-	extrd,u,*= 	pte,_PAGE_GATEWAY_BIT+32,1,r0
-	depdi		0,11,2,prot	/* If Gateway, Set PL2 to 0 */
-
-        extrd,s         pte,35,4,t0 
-        depdi           0,63,12,pte     /* clear lower 12 bits */
-        addi,=          1,t0,0
-        extrd,u,*tr     pte,56,25,pte 
-        extrd,s         pte,56,25,pte   /* bit 31:8 >> 8  */
+	update_dirty	ptp,pte,t0,t1
+
+	make_insert_tlb	spc,pte,prot
+
+	f_extend	pte,t0
+	
         idtlbt          pte,prot
 
 #ifdef CONFIG_SMP
===== include/asm-parisc/page.h 1.6 vs edited =====
--- 1.6/include/asm-parisc/page.h	Sun Apr 25 04:00:21 2004
+++ edited/include/asm-parisc/page.h	Tue Apr 27 11:02:42 2004
@@ -84,6 +84,15 @@
 
 #endif /* !__ASSEMBLY__ */
 
+#ifdef __LP64__
+#define BITS_PER_PTE	3
+#define BITS_PER_PMD	3
+#define BITS_PER_PGD	3
+#else
+#define BITS_PER_PTE	2
+#define BITS_PER_PMD	2
+#endif
+
 /* to align the pointer to the (next) page boundary */
 #define PAGE_ALIGN(addr)	(((addr)+PAGE_SIZE-1)&PAGE_MASK)
 



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Un virus a =E9t=E9 trouv=E9 dans un message envoy=E9 par  parisc-linux@lists.parisc-linux.org.
Le destinataire du message =E9tait:  said@intnet.dj.
Le nom du virus =E9tait:  WORM_NETSKY.P.
Le nom du fichier contamin=E9:  details.zip/details.txt                                                                     .pif.
Le message a =E9t=E9 envoy=E9 :  Wed Apr 28 00:00:16 2004.
 


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> Okay, it's a 64-bit kernel problem them. What kernel are you running
> right now?

a merged 2.6.6-rc1-pa2 and upstream 2.6.6-rc2 :) 32bits build with lastest
gcc-3.3, binutils (debian unstable) and libc6 (cvs 20040426 + your patches
:)

I also have a b2k on which I can try to build 64bits kernel with gcc-3.0?

Joel


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Subject: [parisc-linux] Re: hwinfo_7.30-2: suggested patch
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Hello all,

Is there some interest to port this pkg on hppa?
I think so but I haven't enough time to help more for the moment.

Please advise,
    Joel

> -- Original Message --
> Date: Tue, 27 Apr 2004 22:14:31 +0200
> From: Morten Werner Olsen <werner@skolelinux.no>
> To: Joel Soete <soete.joel@tiscali.be>
> Subject: Re: hwinfo_7.30-2: suggested patch
> 
> 
> On Fri, Apr 23, 2004 at 06:38:21PM +0200, Joel Soete wrote:

> > - where is the file modules.dep located? (I see hwinfo can't find
> >   /lib/modules/2.6.6-rc1-pa0/modules.dep) or do you have a kernel
> >   without module support?
> 
> As explain
> it is just a draft because it is just a test of 2.6.6-rc1 and
> I forget to install /lib/modules/2.6.6-rc1-pa0/modules.dep because the
kernel
> is well build with module support but for this platform (by default) all
> drivers are buildin (again it 
> s just testing)
> 
> That said, I well understood that it may need some more work to
> improve support of hppa.
> 
> But may be can we put the question of actual interest to the parisc-linux.org
> or better to debian-hppa ml? 
> (I would like to
> help you more (more test on different model,
> different kernel 2.4, 2.6) but right now I don't have enough time to
> do more, sorry)

If you think the hppa-community will use the hwinfo package and you'll
help me make it work on the architecture,
> I'll include your patch! :)

Just give me a sign, and I'll include it. I will not do it until next
week, as I hope to get the package (v7.30-2) into Sarge when the
10days period is finished [1].


- Werner

[1] http://packages.qa.debian.org/h/
> winfo.html



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Subject: RE: [parisc-linux] Linux-2.6.6-rc1-pa3 and Linux-2.6.6-rc2
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On Tue, 27 Apr 2004, M. Grabert wrote:

> On Tue, 27 Apr 2004, Joel Soete wrote:
>
> > > and also the same symptoms as before (network is working normal, USB
> > > keyboard/mouse don't work). If you respond fast what commands I should
> > > run, I can give you more info ...
> >
> > hmm usb and ide seems to be on the same superio.

I found a (temporary) solution to my problem. At least I haven't
experienced any problems with the serial console lately.

BTW, the same happened also with a 2.4.26 kernel, so it's not only 2.6
related.

It appears that superio gets confused by my additional USB(2.0) PCI card
in my C3000. Whenever keyboard/mouse was plugged into the onboard USB
ports, simultaneous access to the IDE drive, keyboard and mouse could
cause a lock (and therefore neither USB, IDE and serial console were
working).

I resolved the issue by simply attaching the USB keyboard/mouse to my
USB PCI card. So far I hadn't any problems ....


BTW, using a Voodoo2 and a 2.6 kernel is not as stable as with 2.4.
Some XF86Config options can cause a crash (e.g "DontVTSwitch=true")
on 2.6.6-rc1-pa3, but not on 2.4.26-pa1 ...


greettings,
  Max


From - Thu Nov 08 21:31:57 2018
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Carlos,
> > 
> > Okay, it's a 64-bit kernel problem them. What kernel are you running
> > right now?
> 
> a merged 2.6.6-rc1-pa2 and upstream 2.6.6-rc2 :) 32bits build with lastest
> gcc-3.3, binutils (debian unstable) and libc6 (cvs 20040426 + your patches
> :)
>
> I also have a b2k on which I can try to build 64bits kernel with gcc-3.0?

Certainly: I just rebuild my own merge of 2.6.6-rc1-pa6 and 2.6.6-rc3 with
gcc-hppa64 (from ftp.p-l.org) and reboot my b2k with it and effectively the
result of tst-timer4 is a bit different:
# ./tst-timer4
clock_gettime returned timespec = { 1083142973, 718981000 }
clock_getres returned timespec = { 0, 10000000 }
*** sig1_sigval.sival_ptr (nil) != 0xbff00690
*** sig2_sigval.sival_ptr 0 != 163
# echo $?
0

hth,
    Joel


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Subject: Re: [parisc-linux] RE: [PATCH] glibc-2.3.3 error with debian
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On Wed, Apr 28, 2004 at 11:31:29AM +0200, Joel Soete wrote:
> Certainly: I just rebuild my own merge of 2.6.6-rc1-pa6 and 2.6.6-rc3 with
> gcc-hppa64 (from ftp.p-l.org) and reboot my b2k with it and effectively the
> result of tst-timer4 is a bit different:
> # ./tst-timer4
> clock_gettime returned timespec = { 1083142973, 718981000 }
> clock_getres returned timespec = { 0, 10000000 }
> *** sig1_sigval.sival_ptr (nil) != 0xbff00690
> *** sig2_sigval.sival_ptr 0 != 163
> # echo $?
> 0

It does help, we have a padding problem in siginfo, I never had enough
test cases to prove the __SI_RT parts were in the right place. This goes
to show that what you can't test is probably wrong.

I have to work on this today...

c.



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>
> It does help, we have a padding problem in siginfo, I never had enough
> test cases to prove the __SI_RT parts were in the right place. This goes
> to show that what you can't test is probably wrong.
> 
> I have to work on this today...

I trust it is not related but btw I encounter another strange pb with this
kernel:
I launch a find on a big disk and get severall messages:
find: /a/dir/of/mine: Input/Output error
...

the same when ls -l /a/dir/of/mine (I/O error)

well this is a merge of our 2.6.6-rc1-pa6 and upsteam 2.6.6-rc3 64bits.
if i reboot with 2.6.6-rc1-pa0 32bits no pb.

So i will try to rebuild 2.6.6-rc1-pa6 alone in 64bit and see if the pb is
there or in my merge?

Cheers,
    Joel



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Well,

That must be something wrong in my merge 2.6.6-rc1-pa6 works fine. I will
wait the p-l merge.

Joel

> -- Original Message --
> Date: Wed, 28 Apr 2004 18:29:55 +0200
> From: "Joel Soete" <soete.joel@tiscali.be>
> To: "Carlos O'Donell" <carlos@baldric.uwo.ca>
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] RE: [PATCH] glibc-2.3.3 error with debian unstable
compiler...
> 
> 
> >
> It does help, we have a padding problem in siginfo, I never had enough
> test cases to prove the __SI_RT parts were in the right place. This goes
> to show that what you can't test is probably wrong.
> 
> I have to work on this today...

I t
> ust it is not related but btw I encounter another strange pb with this
kernel:
I launch a find on a big disk and get severall messages:
find: /a/dir/of/mine: Input/Output error
...

the same when ls -l /a/dir/of/mine (I/O error)

well this is a
> merge of our 2.6.6-rc1-pa6 and upsteam 2.6.6-rc3 64bits.
if i reboot with 2.6.6-rc1-pa0 32bits no pb.

So i will try to rebuild 2.6.6-rc1-pa6 alone in 64bit and see if the pb is
there or in my merge?

Cheers,
    Joel



--------------------
> -------------------------------------------------------------------
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parisc-linux,

Do we know if any programs use K_INLINE_SYSCALL from our
linux/include/asm-parisc/unistd.h, or rather all the _syscall[n] macros?

It's rather wrong. Even if I were to correct the issue, I'm curious if
anything uses these definitions. 

There is reference to fdisk.

c.



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Cc: Morten Werner Olsen <werner-0LiWvn2yMWjUKW2QJMybhA@public.gmane.org>,
	PARISC list <parisc-linux-T/XaZq8tFt7U4lJK3ijXoz+iFHGzDt/a@public.gmane.org>,
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To: Joel Soete <soete.joel-IWqWACnzNjyZIoH1IeqzKA@public.gmane.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:21559

Is any other work required beyond the patch you already submitted to the
maintainer?  If so, just how much is needed?  I have some time to spare.

On Wed, 28 Apr 2004, Joel Soete wrote:

> Hello all,
>=20
> Is there some interest to port this pkg on hppa?
> I think so but I haven't enough time to help more for the moment.
>=20
> Please advise,
>     Joel
>=20
> > -- Original Message --
> > Date: Tue, 27 Apr 2004 22:14:31 +0200
> > From: Morten Werner Olsen <werner-0LiWvn2yMWjUKW2QJMybhA@public.gmane.org>
> > To: Joel Soete <soete.joel-IWqWACnzNjyZIoH1IeqzKA@public.gmane.org>
> > Subject: Re: hwinfo_7.30-2: suggested patch
> >=20
> >=20
> > On Fri, Apr 23, 2004 at 06:38:21PM +0200, Joel Soete wrote:
>=20
> > > - where is the file modules.dep located? (I see hwinfo can't find
> > >   /lib/modules/2.6.6-rc1-pa0/modules.dep) or do you have a kernel
> > >   without module support?
> >=20
> > As explain
> > it is just a draft because it is just a test of 2.6.6-rc1 and
> > I forget to install /lib/modules/2.6.6-rc1-pa0/modules.dep because the
> kernel
> > is well build with module support but for this platform (by default) al=
l
> > drivers are buildin (again it=20
> > s just testing)
> >=20
> > That said, I well understood that it may need some more work to
> > improve support of hppa.
> >=20
> > But may be can we put the question of actual interest to the parisc-lin=
ux.org
> > or better to debian-hppa ml?=20
> > (I would like to
> > help you more (more test on different model,
> > different kernel 2.4, 2.6) but right now I don't have enough time to
> > do more, sorry)
>=20
> If you think the hppa-community will use the hwinfo package and you'll
> help me make it work on the architecture,
> > I'll include your patch! :)
>=20
> Just give me a sign, and I'll include it. I will not do it until next
> week, as I hope to get the package (v7.30-2) into Sarge when the
> 10days period is finished [1].
>=20
>=20
> - Werner
>=20
> [1] http://packages.qa.debian.org/h/
> > winfo.html
>=20
>=20
>=20
> -------------------------------------------------------------------------=
---------------
> Tiscali ADSL: 35 =80/mois, la meilleure offre du march=E9!
> http://reg.tiscali.be/default.asp?lg=3Dfr
>=20
>=20
>=20
>=20
>=20

--=20
Martin-=C9ric Racine, ICT Consultant
http://www.pp.fishpool.fi/~q-funk/



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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] On the subject of POSIX timers.
Date: Wed, 28 Apr 2004 15:34:00 -0400
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parisc-linux,

When an si_code is negative in the kernel, it imagines the signal was
generated *from* userspace, it's the convention that positive si_code is
kernel generated signals.

POSIX Timers generate SI_TIMER, evaluating to -2, when the generic
kernel code examines this value, it tries a shortcut. If si_code < 0
(see kernel/signal.c (copy_siginfo_to_user)) then it doesn't retouch
the structure. However, in the compat case we *always* have to retouch
the structure to make it 32-bit correct.

Does anyone know why the shortcut "si_code < 0" is valid? Any thoughts?

Cheers,
Carlos.



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From: "Paul" <paul@techcenter3000.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] OSS / Alsa driver for harmony
Date: Wed, 28 Apr 2004 16:49:56 -0500
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Well, the driver compiled cleanly. So, I finally compiled mpg123, and no =
luck.
Using the OSS driver, I asked for a list of supported formats. According =
to mpg123, I have _no_ supported formats.

A quick google search doesn't turn anything up, anybody have any ideas?

Thanks
Paul

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<DIV><FONT face=3DArial size=3D2>Well, the driver compiled cleanly. So, =
I finally=20
compiled mpg123, and no luck.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Using the OSS driver, I asked for a =
list of=20
supported formats. According to mpg123, I have _no_ supported=20
formats.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>A quick google search doesn't turn =
anything up,=20
anybody have any ideas?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Paul</FONT></DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

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From: Martin Hicks <mort@bork.org>
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Subject: Re: [parisc-linux] A job for a debian-developer?
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On Wed, Apr 28, 2004 at 02:07:41PM -0400, Carlos O'Donell wrote:
> 
> parisc-linux,
> 
> Do we know if any programs use K_INLINE_SYSCALL from our
> linux/include/asm-parisc/unistd.h, or rather all the _syscall[n] macros?
> 
> It's rather wrong. Even if I were to correct the issue, I'm curious if
> anything uses these definitions. 

klibc uses the _syscall[n] stuff.

mh

-- 
Martin Hicks || mort@bork.org || PGP/GnuPG: 0x4C7F2BEE


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 carlos
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On Wed, Apr 28, 2004 at 05:13:38PM -0600, Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	carlos	04/04/28 17:13:38
> 
> Modified files:
> 	arch/parisc/kernel: syscall_table.S 
> 	include/asm-parisc: unistd.h 
> 	ipc            : compat_mq.c 
>
> Log message:
> First cut to get mq_* functions working in userspace. 
> Fix CONFIG_POSIX_MQUEUE build. Connect mq_* syscalls. 
> Make our syscall_table match unistd.h definitions. 
> Boots on my A500, testing new glibc build as we speak.

Not too much glue required.

Index: arch/parisc/kernel/syscall_table.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/syscall_table.S,v
retrieving revision 1.6
diff -u -p -r1.6 syscall_table.S
--- a/arch/parisc/kernel/syscall_table.S	29 Mar 2004 12:51:52 -0000	1.6
+++ b/arch/parisc/kernel/syscall_table.S	28 Apr 2004 23:09:07 -0000
@@ -334,3 +334,12 @@
 	ENTRY_SAME(epoll_ctl)		/* 225 */
 	ENTRY_SAME(epoll_wait)
  	ENTRY_SAME(remap_file_pages)
+  ENTRY_SAME(semtimedop)
+  ENTRY_SAME(mq_open)
+  ENTRY_SAME(mq_unlink)   /* 230 */
+  ENTRY_SAME(mq_timedsend)
+  ENTRY_SAME(mq_timedreceive)
+  ENTRY_SAME(mq_notify)
+  ENTRY_SAME(mq_getsetattr)
+  /* Nothing yet */       /* 235 */
+
Index: include/asm-parisc/unistd.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/unistd.h,v
retrieving revision 1.4
diff -u -p -r1.4 unistd.h
--- a/include/asm-parisc/unistd.h	16 Mar 2004 15:40:38 -0000	1.4
+++ b/include/asm-parisc/unistd.h	28 Apr 2004 23:09:07 -0000
@@ -700,30 +700,35 @@
 #define __NR_acl_set            (__NR_Linux + 205)
 #define __NR_gettid             (__NR_Linux + 206)
 #define __NR_readahead          (__NR_Linux + 207)
-#define __NR_tkill		(__NR_Linux + 208)
-#define __NR_sendfile64		(__NR_Linux + 209)
-#define __NR_futex		(__NR_Linux + 210)
-#define __NR_sched_setaffinity	(__NR_Linux + 211)
-#define __NR_sched_getaffinity	(__NR_Linux + 212)
-#define __NR_set_thread_area	(__NR_Linux + 213)
-#define __NR_get_thread_area	(__NR_Linux + 214)
-#define __NR_io_setup		(__NR_Linux + 215)
-#define __NR_io_destroy		(__NR_Linux + 216)
-#define __NR_io_getevents	(__NR_Linux + 217)
-#define __NR_io_submit		(__NR_Linux + 218)
-#define __NR_io_cancel		(__NR_Linux + 219)
-#define __NR_alloc_hugepages	(__NR_Linux + 220)
-#define __NR_free_hugepages	(__NR_Linux + 221)
-#define __NR_exit_group		(__NR_Linux + 222)
-#define __NR_lookup_dcookie	(__NR_Linux + 223)
-#define __NR_epoll_create	(__NR_Linux + 224)
-#define __NR_epoll_ctl		(__NR_Linux + 225)
-#define __NR_epoll_wait		(__NR_Linux + 226)
-#define __NR_remap_file_pages	(__NR_Linux + 227)
-#define __NR_semtimedop		(__NR_Linux + 228)
+#define __NR_tkill              (__NR_Linux + 208)
+#define __NR_sendfile64         (__NR_Linux + 209)
+#define __NR_futex              (__NR_Linux + 210)
+#define __NR_sched_setaffinity  (__NR_Linux + 211)
+#define __NR_sched_getaffinity  (__NR_Linux + 212)
+#define __NR_set_thread_area    (__NR_Linux + 213)
+#define __NR_get_thread_area    (__NR_Linux + 214)
+#define __NR_io_setup           (__NR_Linux + 215)
+#define __NR_io_destroy         (__NR_Linux + 216)
+#define __NR_io_getevents       (__NR_Linux + 217)
+#define __NR_io_submit          (__NR_Linux + 218)
+#define __NR_io_cancel          (__NR_Linux + 219)
+#define __NR_alloc_hugepages    (__NR_Linux + 220)
+#define __NR_free_hugepages     (__NR_Linux + 221)
+#define __NR_exit_group         (__NR_Linux + 222)
+#define __NR_lookup_dcookie     (__NR_Linux + 223)
+#define __NR_epoll_create       (__NR_Linux + 224)
+#define __NR_epoll_ctl          (__NR_Linux + 225)
+#define __NR_epoll_wait         (__NR_Linux + 226)
+#define __NR_remap_file_pages   (__NR_Linux + 227)
+#define __NR_semtimedop         (__NR_Linux + 228)
+#define __NR_mq_open            (__NR_Linux + 229) /* Keep the mq_* syscalls together */
+#define __NR_mq_unlink          (__NR_Linux + 230)
+#define __NR_mq_timedsend       (__NR_Linux + 231)
+#define __NR_mq_timedreceive    (__NR_Linux + 232)
+#define __NR_mq_notify          (__NR_Linux + 233)
+#define __NR_mq_getsetattr      (__NR_Linux + 234)
 

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Xref: news.gmane.org gmane.linux.ports.parisc:21565

On Wed, Apr 28, 2004 at 06:54:20PM -0400, Martin Hicks wrote:
> On Wed, Apr 28, 2004 at 02:07:41PM -0400, Carlos O'Donell wrote:
> > 
> > parisc-linux,
> > 
> > Do we know if any programs use K_INLINE_SYSCALL from our
> > linux/include/asm-parisc/unistd.h, or rather all the _syscall[n] macros?
> > 
> > It's rather wrong. Even if I were to correct the issue, I'm curious if
> > anything uses these definitions. 
> 
> klibc uses the _syscall[n] stuff.

I don't even know if we have a klibc port? :)
I'll check both out. Thanks Martin.

c.



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On Wed, Apr 28, 2004 at 07:15:07PM -0400, Carlos O'Donell wrote:
> On Wed, Apr 28, 2004 at 05:13:38PM -0600, Carlos O'Donell wrote:
> > CVSROOT:	/var/cvs
> > Module name:	linux-2.6
> > Changes by:	carlos	04/04/28 17:13:38
> > 
> > Modified files:
> > 	arch/parisc/kernel: syscall_table.S 
> > 	include/asm-parisc: unistd.h 
> > 	ipc            : compat_mq.c 
> >
> > Log message:
> > First cut to get mq_* functions working in userspace. 
> > Fix CONFIG_POSIX_MQUEUE build. Connect mq_* syscalls. 
> > Make our syscall_table match unistd.h definitions. 
> > Boots on my A500, testing new glibc build as we speak.
> 
> Not too much glue required.
> 

Okay, glibc build completed, tests pass. We have functioning posix mq_*
support for hppa.

c.



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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Cache flushing update
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Xref: news.gmane.org gmane.linux.ports.parisc:21568

This one is against 2.6.6-rc3-pa1 and should work on every pa system
type.

It seems safe: I can't actually find a stress test that breaks it.

The fork speedup varies between 50-60% depending on the machine you try
it on (the smallest speedup is on pa1.1 systems with small caches).

James

# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
#	           ChangeSet	1.1599  -> 1.1601 
#	         mm/fremap.c	1.17    -> 1.18   
#	include/asm-parisc/io.h	1.7     -> 1.8    
#	include/asm-parisc/cache.h	1.6     -> 1.8    
#	arch/parisc/kernel/pacache.S	1.5.1.1 -> 1.10   
#	include/asm-parisc/page.h	1.5.1.2 -> 1.9    
#	arch/parisc/kernel/entry.S	1.14.1.3 -> 1.19   
#	drivers/video/console/sticore.c	1.16    -> 1.17   
#	drivers/scsi/ncr53c8xx.c	1.39    -> 1.40   
#	include/asm-parisc/dma-mapping.h	1.7     -> 1.8    
#	arch/parisc/kernel/cache.c	1.12.1.4 -> 1.19   
#	         mm/memory.c	1.161   -> 1.162  
#	include/asm-parisc/tlb.h	1.1     -> 1.2    
#	arch/parisc/kernel/sys_parisc.c	1.17    -> 1.18   
#	include/asm-parisc/pgtable.h	1.16.1.1 -> 1.20   
#	arch/parisc/kernel/pci-dma.c	1.10    -> 1.11   
#	include/asm-parisc/cacheflush.h	1.9.1.2 -> 1.18   
#	arch/parisc/kernel/signal.c	1.14    -> 1.15   
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 04/04/28	jejb@raven.il.steeleye.com	1.1600
# Merge akpm changes
# --------------------------------------------
# 04/04/28	jejb@raven.il.steeleye.com	1.1601
# Fix BK botched merge
# --------------------------------------------
#
diff -Nru a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
--- a/arch/parisc/kernel/cache.c	Wed Apr 28 21:24:13 2004
+++ b/arch/parisc/kernel/cache.c	Wed Apr 28 21:24:13 2004
@@ -68,12 +68,14 @@
 {
 	struct page *page = pte_page(pte);
 
-	if (VALID_PAGE(page) && page_mapping(page) &&
-	    test_bit(PG_dcache_dirty, &page->flags)) {
-
+	if (VALID_PAGE(page))
+		/* We used to check to see if the page needed flushing here.
+		 * Now this API automatically detects whether the page
+		 * needs flushing or not.  This is used to defer calls to
+		 * kernel page flushing until mmu update time.
+		 *
+		 * DO NOT REMOVE OR CONDITIONALISE THIS */
 		flush_kernel_dcache_page(page_address(page));
-		clear_bit(PG_dcache_dirty, &page->flags);
-	}
 }
 
 void
@@ -231,6 +233,7 @@
 {
 	struct address_space *mapping = page_mapping(page);
 	struct list_head *l;
+	pte_t *pte;
 
 	flush_kernel_dcache_page(page_address(page));
 
@@ -261,10 +264,11 @@
 		 * have to find a congruent address with an existing
 		 * translation */
 
-		if (!translation_exists(mpnt, addr))
+		if (!(pte = translation_exists(mpnt, addr)))
 			continue;
 
-		__flush_cache_page(mpnt, addr);
+
+		__flush_cache_page(pte, mpnt, addr);
 
 		/* If we find an address to flush, that will also
 		 * bring all the private mappings up to date (see
@@ -294,18 +298,209 @@
 		/* This is just for speed.  If the page translation isn't
 		 * there there's no point exciting the nadtlb handler into
 		 * a nullification frenzy */
-		if(!translation_exists(mpnt, addr))
+		if(!(pte = translation_exists(mpnt, addr)))
 			continue;
 
-		__flush_cache_page(mpnt, addr);
+		__flush_cache_page(pte, mpnt, addr);
 
 		return;
 	}
 }
 EXPORT_SYMBOL(__flush_dcache_page);
 
+/* set to max pages to flush before a full flush.  Zero means no limit */
+#define MAX_FLUSH_PAGES 0
+#undef	DEBUG_PAGE_FLUSHING
+
+#ifdef DEBUG_PAGE_FLUSHING
+#define DBG(a...)	printk(a)
+#else
+#define DBG(...)
+#endif
+
+#if (MAX_FLUSH_PAGES != 0)
+
+/* we get to use the bottom 12 bits of the addr for flags since the
+ * address must be page aligned */
+#define ICACHE_FLUSH_FLAG	0x1
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long count = 0, actual_count = 0;
+	unsigned long sr3 = mfsp(3), cr25 = mfctl(25);
+	unsigned long *pages;
+
+	preempt_disable();
+	if(mm != current->active_mm) {
+		DBG("flush_tlb_mm: current MM is not active ");
+		/* FIXME: awful hack: move the process the mm belongs
+		 * to temporarily to being the active one.  This only
+		 * works because we can never get back into user
+		 * context from here. */
+		mtctl(__pa(mm->pgd), 25);
+		mtsp(mm->context, 3);
+	}
+
+	pages = kmalloc(MAX_FLUSH_PAGES * sizeof(unsigned long), GFP_ATOMIC);
+	if(!pages) {
+		printk(KERN_ERR "flush_tlb_mm: allocation failed: full flush\n");
+		goto full_flush;
+	}
+
+	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+		unsigned long start;
+
+		pmd_t *pmd;
+		pgd_t *pgd;
+		pte_t *pte;
+
+		count += (vma->vm_end - vma->vm_start)/PAGE_SIZE;
+
+		for (start = vma->vm_start; start < vma->vm_end;
+		     start += PAGE_SIZE) {
+			pgd = pgd_offset(mm, start);
+
+			if (pgd_none(*pgd)) {
+				start = (start & PGDIR_MASK) + PGDIR_SIZE - PAGE_SIZE;
+				continue;
+			}
+
+			pmd = pmd_offset(pgd, start);
+			if (pmd_none(*pmd)) {
+				start = (start & PMD_MASK) + PMD_SIZE - PAGE_SIZE;
+				continue;
+			}
+			pte = pte_offset_map(pmd, start);
+			if(pte_val(*pte)==0 || !pte_present(*pte))
+				continue;
+
+			/* FIXME: Here we could also skip over any
+			 * shared mapping page (i.e. equivalently
+			 * aliased) with at least one other user */
+			
+			pages[actual_count] = start;
+		 
+			if (vma->vm_flags & VM_EXEC)
+				pages[actual_count] |= ICACHE_FLUSH_FLAG;
+			if(++actual_count >= MAX_FLUSH_PAGES)
+				goto full_flush_free;
+
+		}
+	}
+			
+	DBG("FLUSHED %lu (actual %lu)\n", count, actual_count);
+	for(count = 0; count < actual_count; count++) {
+		unsigned long addr = pages[count] & PAGE_MASK;
+		flush_user_dcache_page(addr);
+		if(pages[count] & ICACHE_FLUSH_FLAG) {
+			flush_user_icache_page(addr);
+			pitlb_user(addr);
+		}
+		pdtlb_user(addr);
+	}
+ out_free:
+	kfree(pages);
+ out:
+	mtsp(sr3, 3);
+	mtctl(cr25, 25);
+	preempt_enable();
+	return;
+
+ full_flush_free:
+	DBG("flush_cache_mm: over max pages %ld (count %ld), flushing everything\n", actual_count, count);
+	flush_cache_all();
+	goto out_free;
+
+ full_flush:
+	flush_cache_all();
+	goto out;
+}
+
+#else
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma;
+	unsigned long count = 0, actual_count = 0;
+	unsigned long sr3 = mfsp(3), cr25 = mfctl(25);
+#if 1
+	static int flushed = 0;
+
+	if(unlikely(!flushed)) {
+		printk("flush_cache_mm: INIT FLUSH ALL\n");
+		flushed = 1;
+		flush_cache_all();
+		return;
+	}
+#endif
+	preempt_disable();
+	if(mm != current->active_mm) {
+		DBG("flush_tlb_mm: current MM is not active ");
+		/* FIXME: awful hack: move the process the mm belongs
+		 * to temporarily to being the active one.  This only
+		 * works because we can never get back into user
+		 * context from here. */
+		mtctl(__pa(mm->pgd), 25);
+		mtsp(mm->context, 3);
+	}
+
+	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+		unsigned long start;
+
+		pmd_t *pmd;
+		pgd_t *pgd;
+		pte_t *pte;
+
+		count += (vma->vm_end - vma->vm_start)/PAGE_SIZE;
+
+		for (start = vma->vm_start; start < vma->vm_end;
+		     start += PAGE_SIZE) {
+			pgd = pgd_offset(mm, start);
+
+			if (pgd_none(*pgd)) {
+				start = (start & PGDIR_MASK) + PGDIR_SIZE - PAGE_SIZE;
+				continue;
+			}
+
+			pmd = pmd_offset(pgd, start);
+			if (pmd_none(*pmd)) {
+				start = (start & PMD_MASK) + PMD_SIZE - PAGE_SIZE;
+				continue;
+			}
+			pte = pte_offset_map(pmd, start);
+			if(!pte_present(*pte))
+				continue;
+
+			if(!pte_flush(*pte))
+				continue;
+
+			/* FIXME: Here we could also skip over any
+			 * shared mapping page (i.e. equivalently
+			 * aliased) with at least one other user */
+			page_begin_flush(pte);
+			pdtlb_user(start);
+			flush_user_dcache_page(start);
+			if (vma->vm_flags & VM_EXEC) {
+				flush_user_icache_page(start);
+				pitlb_user(start);
+			}
+			page_end_flush(pte);
+			pdtlb_user(start);
+			actual_count++;
+		}
+	}
+	mtsp(sr3, 3);
+	mtctl(cr25, 25);
+	preempt_enable();
+	DBG("FLUSHED %lu (actual %lu)\n", count, actual_count);
+}
+#endif
+
+EXPORT_SYMBOL(flush_cache_mm);
+
 /* Defined in arch/parisc/kernel/pacache.S */
 EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
-EXPORT_SYMBOL(flush_kernel_dcache_page);
+EXPORT_SYMBOL(__flush_kernel_dcache_page);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
diff -Nru a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
--- a/arch/parisc/kernel/entry.S	Wed Apr 28 21:24:13 2004
+++ b/arch/parisc/kernel/entry.S	Wed Apr 28 21:24:13 2004
@@ -51,7 +51,6 @@
 	.level 2.0
 #endif
 
-	.import         pa_dbit_lock,data
 
 	/* space_to_prot macro creates a prot id from a space id */
 
@@ -479,16 +478,16 @@
 	/* Set the _PAGE_ACCESSED bit of the PTE.  Be clever and
 	 * don't needlessly dirty the cache line if it was already set */
 	.macro		update_ptep	ptep,pte,tmp,tmp1
-	ldi		_PAGE_ACCESSED,\tmp1
+	ldi		(_PAGE_ACCESSED|_PAGE_FLUSH),\tmp1
 	or		\tmp1,\pte,\tmp
-	and,COND(<>)	\tmp1,\pte,%r0
+	andcm,COND(=)	\tmp1,\pte,%r0
 	STREG		\tmp,0(\ptep)
 	.endm
 
 	/* Set the dirty bit (and accessed bit).  No need to be
 	 * clever, this is only used from the dirty fault */
 	.macro		update_dirty	ptep,pte,tmp,tmp1
-	ldi		_PAGE_ACCESSED|_PAGE_DIRTY,\tmp
+	ldi		_PAGE_ACCESSED|_PAGE_DIRTY|_PAGE_FLUSH,\tmp
 	or		\tmp,\pte,\pte
 	STREG		\pte,0(\ptep)
 	.endm
@@ -513,9 +512,13 @@
 
 	/* PAGE_USER indicates the page can be read with user privileges,
 	 * so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1
-	 * contains _PAGE_READ */
+	 * contains _PAGE_READ) */
 	extrd,u,*=      \pte,_PAGE_USER_BIT+32,1,%r0
 	depdi		7,11,3,\prot
+	/* In 2.0 we use the no cache bit exclusively for flush only
+	 * translations */
+	extrd,u,*=	\pte,_PAGE_NO_CACHE_BIT+32,1,%r0
+	depdi		1,12,1,\prot
 	/* If we're a gateway page, drop PL2 back to zero for promotion
 	 * to kernel privilege (so we can execute the page as kernel).
 	 * Any privilege promotion page always denys read and write */
@@ -1211,7 +1214,7 @@
 	get_pgd		spc,ptp
 	space_check	spc,t0,nadtlb_fault
 
-	L3_ptep		ptp,pte,t0,va,nadtlb_check_flush_20w
+	L3_ptep		ptp,pte,t0,va,nadtlb_emulate
 
 	update_ptep	ptp,pte,t0,t1
 
@@ -1222,23 +1225,6 @@
 	rfir
 	nop
 
-nadtlb_check_flush_20w:
-	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
-
-	/* Insert a "flush only" translation */
-
-	depdi,z         7,7,3,prot
-	depdi           1,10,1,prot
-
-	/* Get rid of prot bits and convert to page addr for idtlbt */
-
-	depdi		0,63,12,pte
-	extrd,u         pte,56,52,pte
-	idtlbt          pte,prot
-
-	rfir
-	nop
-
 #else
 
 dtlb_miss_11:
@@ -1295,7 +1281,7 @@
 
 	space_check	spc,t0,nadtlb_fault
 
-	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_11
+	L2_ptep		ptp,pte,t0,va,nadtlb_emulate
 
 	update_ptep	ptp,pte,t0,t1
 
@@ -1313,30 +1299,6 @@
 	rfir
 	nop
 
-nadtlb_check_flush_11:
-	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
-
-	/* Insert a "flush only" translation */
-
-	zdepi           7,7,3,prot
-	depi            1,10,1,prot
-
-	/* Get rid of prot bits and convert to page addr for idtlba */
-
-	depi		0,31,12,pte
-	extru		pte,24,25,pte
-
-	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb inserts */
-	mtsp		spc,%sr1
-
-	idtlba		pte,(%sr1,va)
-	idtlbp		prot,(%sr1,va)
-
-	mtsp		t0, %sr1	/* Restore sr1 */
-
-	rfir
-	nop
-
 dtlb_miss_20:
 	space_adjust	spc,va,t0
 	get_pgd		spc,ptp
@@ -1368,7 +1330,7 @@
 
 	space_check	spc,t0,nadtlb_fault
 
-	L2_ptep		ptp,pte,t0,va,nadtlb_check_flush_20
+	L2_ptep		ptp,pte,t0,va,nadtlb_emulate
 
 	update_ptep	ptp,pte,t0,t1
 
@@ -1381,22 +1343,6 @@
 	rfir
 	nop
 
-nadtlb_check_flush_20:
-	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
-
-	/* Insert a "flush only" translation */
-
-	depdi,z         7,7,3,prot
-	depdi           1,10,1,prot
-
-	/* Get rid of prot bits and convert to page addr for idtlbt */
-
-	depdi		0,63,12,pte
-	extrd,u         pte,56,32,pte
-	idtlbt          pte,prot
-
-	rfir
-	nop
 #endif
 
 nadtlb_emulate:
diff -Nru a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
--- a/arch/parisc/kernel/pacache.S	Wed Apr 28 21:24:13 2004
+++ b/arch/parisc/kernel/pacache.S	Wed Apr 28 21:24:13 2004
@@ -308,6 +308,24 @@
 

 1:
+#ifdef __LP64__
+	ldd 0(%r25),%r19
+	ldd 8(%r25),%r20
+	ldd 16(%r25),%r21
+	ldd 24(%r25),%r22
+	std %r19,0(%r26)
+	std %r20,8(%r26)
+	std %r21,16(%r26)
+	std %r22,24(%r26)
+	ldd 32(%r25),%r19
+	ldd 40(%r25),%r20
+	ldd 48(%r25),%r21
+	ldd 56(%r25),%r22
+	std %r19,32(%r26)
+	std %r20,40(%r26)
+	std %r21,48(%r26)
+	std %r22,56(%r26)
+#else
 	ldw 0(%r25),%r19
 	ldw 4(%r25),%r20
 	ldw 8(%r25),%r21
@@ -340,6 +358,7 @@
 	stw %r20,52(%r26)
 	stw %r21,56(%r26)
 	stw %r22,60(%r26)
+#endif
 	ldo 64(%r26),%r26
 	ADDIB>  -1,%r1,1b
 	ldo 64(%r25),%r25
@@ -371,7 +390,6 @@
  *          %r23 physical page (shifted for tlb insert) of "from" translation
  */
 
-#if 0
 
 	/*
 	 * We can't do this since copy_user_page is used to bring in
@@ -386,9 +404,9 @@
 	 * lobby for such a change.
 	 */
 
-	.export copy_user_page_asm,code
+	.export copy_user_page_vaddr_asm,code
 
-copy_user_page_asm:
+copy_user_page_vaddr_asm:
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -432,6 +450,24 @@
 

 1:
+#ifdef __LP64__
+	ldd 0(%r29),%r19
+	ldd 8(%r29),%r20
+	ldd 16(%r29),%r21
+	ldd 24(%r29),%r22
+	std %r19,0(%r28)
+	std %r20,8(%r28)
+	std %r21,16(%r28)
+	std %r22,24(%r28)
+	ldd 32(%r29),%r19
+	ldd 40(%r29),%r20
+	ldd 48(%r29),%r21
+	ldd 56(%r29),%r22
+	std %r19,32(%r28)
+	std %r20,40(%r28)
+	std %r21,48(%r28)
+	std %r22,56(%r28)
+#else
 	ldw 0(%r29),%r19
 	ldw 4(%r29),%r20
 	ldw 8(%r29),%r21
@@ -464,6 +500,7 @@
 	stw %r20,52(%r28)
 	stw %r21,56(%r28)
 	stw %r22,60(%r28)
+#endif
 	ldo 64(%r28),%r28
 	ADDIB>  -1,%r1,1b
 	ldo 64(%r29),%r29
@@ -473,7 +510,6 @@
 	.exit
 
 	.procend
-#endif
 
 	.export clear_user_page_asm,code
 
@@ -505,6 +541,16 @@
 	ldi 64,%r1
 
 1:
+#ifdef __LP64__
+	std %r0,0(%r28)
+	std %r0,8(%r28)
+	std %r0,16(%r28)
+	std %r0,24(%r28)
+	std %r0,32(%r28)
+	std %r0,40(%r28)
+	std %r0,48(%r28)
+	std %r0,56(%r28)
+#else
 	stw %r0,0(%r28)
 	stw %r0,4(%r28)
 	stw %r0,8(%r28)
@@ -521,6 +567,7 @@
 	stw %r0,52(%r28)
 	stw %r0,56(%r28)
 	stw %r0,60(%r28)
+#endif
 	ADDIB>  -1,%r1,1b
 	ldo 64(%r28),%r28
 
@@ -530,9 +577,9 @@
 
 	.procend
 
-	.export flush_kernel_dcache_page
+	.export __flush_kernel_dcache_page
 
-flush_kernel_dcache_page:
+__flush_kernel_dcache_page:
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -541,9 +588,11 @@
 	ldw     R%dcache_stride(%r1),%r23
 
 #ifdef __LP64__
-	depdi,z 1,63-PAGE_SHIFT,1,%r25
+	depdi,z 1,63-PAGE_SHIFT,1,%r25	/* PAGE_SIZE */
+	depdi	0,63,12,%r26		/* page align */
 #else
-	depwi,z 1,31-PAGE_SHIFT,1,%r25
+	depwi,z 1,31-PAGE_SHIFT,1,%r25	/* PAGE_SIZE */
+	depwi	0,31,PAGE_SHIFT,%r26	/* page align */
 #endif
 	add     %r26,%r25,%r25
 	sub     %r25,%r23,%r25
@@ -585,9 +634,11 @@
 	ldw     R%dcache_stride(%r1),%r23
 
 #ifdef __LP64__
-	depdi,z 1,63-PAGE_SHIFT,1,%r25
+	depdi,z 1,63-PAGE_SHIFT,1,%r25  /* PAGE_SIZE into %r25 */
+	depdi	0,63,12,%r26		/* page align argument */
 #else
-	depwi,z 1,31-PAGE_SHIFT,1,%r25
+	depwi,z 1,31-PAGE_SHIFT,1,%r25	/* PAGE_SIZE */
+	depwi	0,31,12,%r26		/* Page align */
 #endif
 	add     %r26,%r25,%r25
 	sub     %r25,%r23,%r25
@@ -630,8 +681,10 @@
 
 #ifdef __LP64__
 	depdi,z 1,63-PAGE_SHIFT,1,%r25
+	depdi	0,63,12,%r26
 #else
 	depwi,z 1,31-PAGE_SHIFT,1,%r25
+	depwi	0,31,12,%r26
 #endif
 	add     %r26,%r25,%r25
 	sub     %r25,%r23,%r25
diff -Nru a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
--- a/arch/parisc/kernel/pci-dma.c	Wed Apr 28 21:24:13 2004
+++ b/arch/parisc/kernel/pci-dma.c	Wed Apr 28 21:24:13 2004
@@ -362,7 +362,7 @@
 	size = 1 << (order + PAGE_SHIFT);
 	vaddr = pcxl_alloc_range(size);
 	paddr = __get_free_pages(flag, order);
-	flush_kernel_dcache_range(paddr, size);
+	flush_kernel_dcache_range_asm(paddr, paddr + size);
 	paddr = __pa(paddr);
 	map_uncached_pages(vaddr, size, paddr);
 	*dma_handle = (dma_addr_t) paddr;
@@ -396,12 +396,13 @@
 		BUG();
 	}
 
-	flush_kernel_dcache_range((unsigned long) addr, size);
+	flush_kernel_dcache_range_asm((unsigned long) addr, (unsigned long)addr + size);
 	return virt_to_phys(addr);
 }
 
 static void pa11_dma_unmap_single(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction direction)
 {
+	unsigned long addr = (unsigned long)phys_to_virt(dma_handle);
 	if (direction == DMA_NONE) {
 		printk(KERN_ERR "pa11_dma_unmap_single(PCI_DMA_NONE) called by %p\n", __builtin_return_address(0));
 		BUG();
@@ -416,7 +417,7 @@
 	 * pci_dma_sync_single_* has been called and the buffer reused.
 	 */
 
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle), size);
+	flush_kernel_dcache_range_asm(addr, addr + size);
 	return;
 }
 
@@ -431,7 +432,7 @@
 		unsigned long vaddr = sg_virt_addr(sglist);
 		sg_dma_address(sglist) = (dma_addr_t) virt_to_phys(vaddr);
 		sg_dma_len(sglist) = sglist->length;
-		flush_kernel_dcache_range(vaddr, sglist->length);
+		flush_kernel_dcache_range_asm(vaddr, vaddr + sglist->length);
 	}
 	return nents;
 }
@@ -448,25 +449,29 @@
 
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
-	for (i = 0; i < nents; i++, sglist++ )
-		flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
+	for (i = 0; i < nents; i++, sglist++ ) {
+		unsigned long vaddr = sg_virt_addr(sglist);
+		flush_kernel_dcache_range_asm(vaddr, vaddr + sglist->length);
+	}
 	return;
 }
 
 static void pa11_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
 {
+	unsigned long addr = (unsigned long)phys_to_virt(dma_handle) + offset;
 	if (direction == DMA_NONE)
 	    BUG();
 
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
+	flush_kernel_dcache_range_asm(addr, addr + size);
 }
 
 static void pa11_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
 {
+	unsigned long addr = (unsigned long)phys_to_virt(dma_handle) + offset;
 	if (direction == DMA_NONE)
 	    BUG();
 
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
+	flush_kernel_dcache_range_asm(addr, addr + size);
 }
 
 static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
@@ -475,8 +480,10 @@
 
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
-	for (i = 0; i < nents; i++, sglist++ )
-		flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
+	for (i = 0; i < nents; i++, sglist++ ) {
+		unsigned long vaddr = sg_virt_addr(sglist);
+		flush_kernel_dcache_range_asm(vaddr, vaddr + sglist->length);
+	}
 }
 
 static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
@@ -485,8 +492,10 @@
 
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
-	for (i = 0; i < nents; i++, sglist++ )
-		flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
+	for (i = 0; i < nents; i++, sglist++ ) {
+		unsigned long vaddr = sg_virt_addr(sglist);
+		flush_kernel_dcache_range_asm(vaddr, vaddr + sglist->length);
+	}
 }
 
 struct hppa_dma_ops pcxl_dma_ops = {
diff -Nru a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
--- a/arch/parisc/kernel/signal.c	Wed Apr 28 21:24:13 2004
+++ b/arch/parisc/kernel/signal.c	Wed Apr 28 21:24:13 2004
@@ -375,10 +375,9 @@
 	}
 #endif
 
-	flush_user_dcache_range((unsigned long) &frame->tramp[0],
-			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
-	flush_user_icache_range((unsigned long) &frame->tramp[0],
-			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
+	__flush_cache_range(current->active_mm,
+			    (unsigned long) &frame->tramp[0],
+			    (unsigned long) &frame->tramp[TRAMP_SIZE]);
 
 	/* TRAMP Words 0-4, Lenght 5 = SIGRESTARTBLOCK_TRAMP
 	 * TRAMP Words 5-9, Length 4 = SIGRETURN_TRAMP
diff -Nru a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c
--- a/drivers/scsi/ncr53c8xx.c	Wed Apr 28 21:24:13 2004
+++ b/drivers/scsi/ncr53c8xx.c	Wed Apr 28 21:24:13 2004
@@ -8621,6 +8621,7 @@
 	tpnt->sg_tablesize	= SCSI_NCR_SG_TABLESIZE;
 	tpnt->cmd_per_lun	= SCSI_NCR_CMD_PER_LUN;
 	tpnt->use_clustering	= DISABLE_CLUSTERING;
+	tpnt->max_sectors	= 8;
 
 	if (device->differential)
 		driver_setup.diff_support = device->differential;
diff -Nru a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
--- a/drivers/video/console/sticore.c	Wed Apr 28 21:24:13 2004
+++ b/drivers/video/console/sticore.c	Wed Apr 28 21:24:13 2004
@@ -237,7 +237,7 @@
 static void sti_flush(unsigned long from, unsigned long len)
 {
 	flush_data_cache();
-	flush_kernel_dcache_range(from, len);
+	flush_kernel_dcache_range(from, from+len);
 	flush_icache_range(from, from+len);
 }
 
diff -Nru a/include/asm-parisc/cache.h b/include/asm-parisc/cache.h
--- a/include/asm-parisc/cache.h	Wed Apr 28 21:24:13 2004
+++ b/include/asm-parisc/cache.h	Wed Apr 28 21:24:13 2004
@@ -46,7 +46,7 @@
 extern void flush_kernel_icache_range_asm(unsigned long, unsigned long);
 extern void flush_user_dcache_range_asm(unsigned long, unsigned long);
 extern void flush_kernel_dcache_range_asm(unsigned long, unsigned long);
-extern void flush_kernel_dcache_page(void *);
+extern void __flush_kernel_dcache_page(void *);
 extern void flush_kernel_icache_page(void *);
 extern void disable_sr_hashing(void);   /* turns off space register hashing */
 extern void disable_sr_hashing_asm(int); /* low level support for above */
@@ -63,9 +63,11 @@
 extern int icache_stride;
 extern struct pdc_cache_info cache_info;
 
-#define pdtlb(addr)         asm volatile("pdtlb 0(%%sr1,%0)" : : "r" (addr));
-#define pitlb(addr)         asm volatile("pitlb 0(%%sr1,%0)" : : "r" (addr));
-#define pdtlb_kernel(addr)  asm volatile("pdtlb 0(%0)" : : "r" (addr));
+#define pdtlb(addr)         asm volatile("pdtlb 0(%%sr1,%0)" : : "r" (addr))
+#define pitlb(addr)         asm volatile("pitlb 0(%%sr1,%0)" : : "r" (addr))
+#define pdtlb_kernel(addr)  asm volatile("pdtlb 0(%0)" : : "r" (addr))
+#define pdtlb_user(addr)    asm volatile("pdtlb 0(%%sr3,%0)" : : "r" (addr))
+#define pitlb_user(addr)    asm volatile("pitlb 0(%%sr3,%0)" : : "r" (addr))
 
 #endif /* ! __ASSEMBLY__ */
 
diff -Nru a/include/asm-parisc/cacheflush.h b/include/asm-parisc/cacheflush.h
--- a/include/asm-parisc/cacheflush.h	Wed Apr 28 21:24:13 2004
+++ b/include/asm-parisc/cacheflush.h	Wed Apr 28 21:24:13 2004
@@ -9,14 +9,7 @@
 
 /* Cache flush operations */
 
-#ifdef CONFIG_SMP
-#define flush_cache_mm(mm) flush_cache_all()
-#else
-#define flush_cache_mm(mm) flush_cache_all_local()
-#endif
-
-#define flush_kernel_dcache_range(start,size) \
-	flush_kernel_dcache_range_asm((start), (start)+(size));
+extern void flush_cache_mm(struct mm_struct *);
 
 extern void flush_cache_all_local(void);
 
@@ -33,53 +26,6 @@
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
 
-/* The following value needs to be tuned and probably scaled with the
- * cache size.
- */
-
-#define FLUSH_THRESHOLD 0x80000
-
-static inline void
-flush_user_dcache_range(unsigned long start, unsigned long end)
-{
-#ifdef CONFIG_SMP
-	flush_user_dcache_range_asm(start,end);
-#else
-	if ((end - start) < FLUSH_THRESHOLD)
-		flush_user_dcache_range_asm(start,end);
-	else
-		flush_data_cache();
-#endif
-}
-
-static inline void
-flush_user_icache_range(unsigned long start, unsigned long end)
-{
-#ifdef CONFIG_SMP
-	flush_user_icache_range_asm(start,end);
-#else
-	if ((end - start) < FLUSH_THRESHOLD)
-		flush_user_icache_range_asm(start,end);
-	else
-		flush_instruction_cache();
-#endif
-}
-
-extern void __flush_dcache_page(struct page *page);
-
-static inline void flush_dcache_page(struct page *page)
-{
-	struct address_space *mapping = page_mapping(page);
-
-	if (mapping && !mapping_mapped(mapping)) {
-		set_bit(PG_dcache_dirty, &page->flags);
-	} else {
-		__flush_dcache_page(page);
-	}
-}
-
-#define flush_icache_page(vma,page)	do { flush_kernel_dcache_page(page_address(page)); flush_kernel_icache_page(page_address(page)); } while (0)
-
 #define flush_icache_range(s,e)		do { flush_kernel_dcache_range_asm(s,e); flush_kernel_icache_range_asm(s,e); } while (0)
 
 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
@@ -89,49 +35,31 @@
 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
 	memcpy(dst, src, len)
 
-static inline void flush_cache_range(struct vm_area_struct *vma,
-		unsigned long start, unsigned long end)
-{
-	int sr3;
-
-	if (!vma->vm_mm->context) {
-		BUG();
-		return;
-	}
-
-	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
-	} else {
-		flush_cache_all();
-	}
-}
-
 /* Simple function to work out if we have an existing address translation
  * for a user space vma. */
-static inline int translation_exists(struct vm_area_struct *vma,
-				     unsigned long addr)
+static inline pte_t *__translation_exists(struct mm_struct *mm,
+					  unsigned long addr)
 {
-	pgd_t *pgd = pgd_offset(vma->vm_mm, addr);
+	pgd_t *pgd = pgd_offset(mm, addr);
 	pmd_t *pmd;
 	pte_t *pte;
 
 	if(pgd_none(*pgd))
-		return 0;
+		return NULL;
 
 	pmd = pmd_offset(pgd, addr);
 	if(pmd_none(*pmd) || pmd_bad(*pmd))
-		return 0;
+		return NULL;
 
 	pte = pte_offset_map(pmd, addr);
 
 	/* The PA flush mappings show up as pte_none, but they're
 	 * valid none the less */
 	if(pte_none(*pte) && ((pte_val(*pte) & _PAGE_FLUSH) == 0))
-		return 0;
-	return 1;
+		return NULL;
+	return pte;
 }
+#define translation_exists(vma, addr)	__translation_exists((vma)->vm_mm, addr)
 

 /* Private function to flush a page from the cache of a non-current
@@ -142,7 +70,7 @@
  * the handlers have to fill in from the pgd of the non-current
  * process. */
 static inline void
-flush_user_cache_page_non_current(struct vm_area_struct *vma,
+flush_user_cache_page_non_current(pte_t *pte, struct vm_area_struct *vma,
 				  unsigned long vmaddr)
 {
 	/* save the current process space and pgd */
@@ -157,9 +85,15 @@
 	mtctl(__pa(vma->vm_mm->pgd), 25);
 	mtsp(vma->vm_mm->context, 3);
 
+	page_begin_flush(pte);
+	pdtlb_user(vmaddr);
 	flush_user_dcache_page(vmaddr);
-	if(vma->vm_flags & VM_EXEC)
+	if(vma->vm_flags & VM_EXEC) {
 		flush_user_icache_page(vmaddr);
+		pitlb_user(vmaddr);
+	}
+	page_end_flush(pte);
+	pdtlb_user(vmaddr);
 
 	/* put the old current process back */
 	mtsp(space, 3);
@@ -168,25 +102,165 @@
 }
 
 static inline void
-__flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
+__flush_cache_page(pte_t *pte, struct vm_area_struct *vma,
+		   unsigned long vmaddr)
 {
 	if (likely(vma->vm_mm->context == mfsp(3))) {
+		page_begin_flush(pte);
+		pdtlb_user(vmaddr);
 		flush_user_dcache_page(vmaddr);
-		if (vma->vm_flags & VM_EXEC)
+		if (vma->vm_flags & VM_EXEC) {
 			flush_user_icache_page(vmaddr);
+			pitlb_user(vmaddr);
+		}
+		page_end_flush(pte);
+		pdtlb_user(vmaddr);
+	} else {
+		flush_user_cache_page_non_current(pte, vma, vmaddr);
+	}
+}
+
+/* The following value needs to be tuned and probably scaled with the
+ * cache size.
+ */
+
+#define FLUSH_THRESHOLD 0x80000
+
+static inline void
+__flush_cache_range(struct mm_struct *mm, unsigned long start,
+		    unsigned long end)
+{
+	unsigned long vaddr;
+	pte_t *pte;
+
+	/* small range, don't bother to flush the whole page (and
+	 * thus don't mark the page as flushed */
+	if (likely(end - start < PAGE_SIZE)) {
+		flush_user_dcache_range_asm(start,end);
+		flush_user_icache_range_asm(start,end);
+		return;
+	}
+
+	for (vaddr = start & PAGE_MASK; vaddr < end; vaddr += PAGE_SIZE) {
+		if(unlikely(!(pte = __translation_exists(mm, vaddr))))
+			continue;
+
+		if (unlikely(!pte_flush(*pte)))
+			continue;
+
+		page_begin_flush(pte);
+		pdtlb_user(vaddr);
+		flush_user_dcache_page(vaddr);
+		flush_user_icache_page(vaddr);
+		page_end_flush(pte);
+		pdtlb_user(vaddr);
+		pitlb_user(vaddr);
+	}
+}
+
+static inline void flush_cache_range(struct vm_area_struct *vma,
+				     unsigned long start, unsigned long end)
+{
+	unsigned long sr3 = mfsp(3);
+
+	BUG_ON(!vma->vm_mm->context);
+
+	if (likely(vma->vm_mm->context == sr3)) {
+		__flush_cache_range(vma->vm_mm, start, end);
 	} else {
-		flush_user_cache_page_non_current(vma, vmaddr);
+		unsigned long pgd = mfctl(25);
+		/* we don't mind taking interrups since they may not
+		 * do anything with user space, but we can't
+		 * be preempted here */
+		preempt_disable();
+
+		/* make us current */
+		mtctl(__pa(vma->vm_mm->pgd), 25);
+		mtsp(vma->vm_mm->context, 3);
+
+		__flush_cache_range(vma->vm_mm, start, end);
+
+		/* put the old current process back */
+		mtsp(sr3, 3);
+		mtctl(pgd, 25);
+		preempt_enable();
+
+	}
+}
+
+extern void __flush_dcache_page(struct page *page);
+
+static inline void flush_dcache_page(struct page *page)
+{
+	struct address_space *mapping = page_mapping(page);
+
+	if (!mapping || mapping_mapped(mapping))
+		__flush_dcache_page(page);
+}
+
+static inline void flush_kernel_dcache_page(void *vaddr)
+{
+	pte_t *pte = __translation_exists(&init_mm, (unsigned long)vaddr);
+
+	if (likely(pte && pte_flush(*pte))) {
+		page_begin_flush(pte);
+		pdtlb_kernel(vaddr);
+		__flush_kernel_dcache_page(vaddr);
+		page_end_flush(pte);
+		pdtlb_kernel(vaddr);
 	}
 }
 
 static inline void
 flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
 {
+	pte_t *pte = translation_exists(vma, vmaddr);
+
 	BUG_ON(!vma->vm_mm->context);
 
-	if(likely(translation_exists(vma, vmaddr)))
-		__flush_cache_page(vma, vmaddr);
+	if (likely(pte && pte_flush(*pte))) {
+		__flush_cache_page(pte, vma, vmaddr);
+	}
+
+}
+
+static inline void
+flush_kernel_dcache_range(unsigned long start, unsigned long end)
+{
+	unsigned long vaddr;
+
+	/* small range, don't bother to flush the whole page (and
+	 * thus don't mark the page as flushed */
+	if (likely(end - start < PAGE_SIZE)) {
+		flush_kernel_dcache_range_asm(start,end);
+		return;
+	}
+
+	for (vaddr = start & PAGE_MASK; vaddr < end; vaddr += PAGE_SIZE)
+		flush_kernel_dcache_page((void *)vaddr);
+}
+
 
+static inline void
+flush_icache_page(struct vm_area_struct *vma, struct page *page)
+{
 }
+
+static inline void
+copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *pg)
+{
+	pte_t *pte;
+	copy_user_page_asm(vto, vfrom);
+	if(likely((pte = __translation_exists(current->active_mm, vaddr)) &&
+		  pte_flush(*pte))) {
+		/* no point clearing flush here, it would be set again
+		 * when the user accesses the page, likewise, don't
+		 * purge the TLB entries */
+		flush_user_dcache_page(vaddr);
+		flush_user_icache_page(vaddr);
+	}
+		
+}
+
 #endif
 
diff -Nru a/include/asm-parisc/dma-mapping.h b/include/asm-parisc/dma-mapping.h
--- a/include/asm-parisc/dma-mapping.h	Wed Apr 28 21:24:13 2004
+++ b/include/asm-parisc/dma-mapping.h	Wed Apr 28 21:24:13 2004
@@ -200,8 +200,9 @@
 dma_cache_sync(void *vaddr, size_t size,
 	       enum dma_data_direction direction)
 {
+	unsigned long start = (unsigned long)vaddr, end = start + size;
 	if(hppa_dma_ops->dma_sync_single_for_cpu)
-		flush_kernel_dcache_range((unsigned long)vaddr, size);
+		flush_kernel_dcache_range_asm(start, end);
 }
 
 static inline void *
diff -Nru a/include/asm-parisc/io.h b/include/asm-parisc/io.h
--- a/include/asm-parisc/io.h	Wed Apr 28 21:24:13 2004
+++ b/include/asm-parisc/io.h	Wed Apr 28 21:24:13 2004
@@ -298,9 +298,9 @@
 #define IO_SPACE_LIMIT 0x00ffffff
 

-#define dma_cache_inv(_start,_size)		do { flush_kernel_dcache_range(_start,_size); } while (0)
-#define dma_cache_wback(_start,_size)		do { flush_kernel_dcache_range(_start,_size); } while (0)
-#define dma_cache_wback_inv(_start,_size)	do { flush_kernel_dcache_range(_start,_size); } while (0)
+#define dma_cache_inv(_start,_size)		do { flush_kernel_dcache_range_asm(_start,(_start) + (_size)); } while (0)
+#define dma_cache_wback(_start,_size)		do { flush_kernel_dcache_range_asm(_start,(_start) + (_size)); } while (0)
+#define dma_cache_wback_inv(_start,_size)	do { flush_kernel_dcache_range_asm(_start,(_start) + (_size)); } while (0)
 
 /* PA machines have an MM I/O space from 0xf0000000-0xffffffff in 32
  * bit mode and from 0xfffffffff0000000-0xfffffffffffffff in 64 bit
diff -Nru a/include/asm-parisc/page.h b/include/asm-parisc/page.h
--- a/include/asm-parisc/page.h	Wed Apr 28 21:24:13 2004
+++ b/include/asm-parisc/page.h	Wed Apr 28 21:24:13 2004
@@ -19,15 +19,10 @@
 
 extern void purge_kernel_dcache_page(unsigned long);
 extern void copy_user_page_asm(void *to, void *from);
+extern void copy_user_page_vaddr_asm(void *to, void *from, unsigned long vaddr);
 extern void clear_user_page_asm(void *page, unsigned long vaddr);
 
-static inline void
-copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *pg)
-{
-	copy_user_page_asm(vto, vfrom);
-	flush_kernel_dcache_page(vto);
-	/* XXX: ppc flushes icache too, should we? */
-}
+/* see cacheflush.h for copy_user_page */
 
 static inline void
 clear_user_page(void *page, unsigned long vaddr, struct page *pg)
diff -Nru a/include/asm-parisc/pgtable.h b/include/asm-parisc/pgtable.h
--- a/include/asm-parisc/pgtable.h	Wed Apr 28 21:24:13 2004
+++ b/include/asm-parisc/pgtable.h	Wed Apr 28 21:24:13 2004
@@ -29,15 +29,6 @@
  */
 #define kern_addr_valid(addr)	(1)
 
-/* Certain architectures need to do special things when PTEs
- * within a page table are directly modified.  Thus, the following
- * hook is made available.
- */
-#define set_pte(pteptr, pteval)                                 \
-        do{                                                     \
-                *(pteptr) = (pteval);                           \
-        } while(0)
-
 #endif /* !__ASSEMBLY__ */
 
 #define pte_ERROR(e) \
@@ -213,6 +204,15 @@
 #define __S110  PAGE_RWX
 #define __S111  PAGE_RWX
 
+/* Certain architectures need to do special things when PTEs
+ * within a page table are directly modified.  Thus, the following
+ * hook is made available.
+ */
+static inline void set_pte(pte_t *pteptr, pte_t pteval)
+{
+	*pteptr = pteval;
+}
+
 extern pgd_t swapper_pg_dir[]; /* declared in init_task.c */
 
 /* initial page tables for 0-8MB for kernel */
@@ -230,17 +230,16 @@
 
 #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
 
-#define pte_none(x)     ((pte_val(x) == 0) || (pte_val(x) & _PAGE_FLUSH))
+#define pte_none(x)     ((pte_val(x) == 0))
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
-#define pte_clear(xp)	do { pte_val(*(xp)) = 0; } while (0)
+#define pte_flush(x)	(pte_val(x) & _PAGE_FLUSH)
+#define pte_no_cache(x)	(pte_val(x) & _PAGE_NO_CACHE)
 
 #define pmd_none(x)	(!pmd_val(x))
 #define pmd_bad(x)	((pmd_val(x) & ~PAGE_MASK) != _PAGE_TABLE)
 #define pmd_present(x)	(pmd_val(x) & _PAGE_PRESENT)
 #define pmd_clear(xp)	do { pmd_val(*(xp)) = 0; } while (0)
 
-
-
 #ifdef __LP64__
 #define pgd_page(pgd) ((unsigned long) __va(pgd_val(pgd) & PAGE_MASK))
 
@@ -262,6 +261,23 @@
 extern inline void pgd_clear(pgd_t * pgdp)	{ }
 #endif
 
+extern inline void page_begin_flush(pte_t *pte)
+{
+	/* make the page uncacheable. We need to do this to prevent
+	 * prefetches during the flush from filling the cache.
+	 *
+	 * NOTE: the tlb entry must be purged for this to take effect
+	 * but we don't do it here because we don't know whose space */
+	pte_val(*pte) |= _PAGE_NO_CACHE;
+}
+
+extern inline void page_end_flush(pte_t *pte)
+{
+	/* Clear the flush flag and allow caching the page again.
+	 *
+	 * NOTE: tlb entry must be purged to clear the no cache flag */
+	pte_val(*pte) &= ~(_PAGE_FLUSH | _PAGE_NO_CACHE);
+}
 /*
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
@@ -282,6 +298,13 @@
 extern inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
 extern inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) |= _PAGE_WRITE; return pte; }
 
+static inline void pte_clear(pte_t *xp) {
+	WARN_ON(pte_flush(*xp) && pte_user(*xp));
+	pte_val(*xp) = 0;
+}
+
+
+
 /*
  * Conversion functions: convert a page and protection to a page entry,
  * and a page entry and page directory to the page they refer to.
@@ -358,10 +381,6 @@
 
 extern void paging_init (void);
 
-/* Used for deferring calls to flush_dcache_page() */
-
-#define PG_dcache_dirty         PG_arch_1
-
 struct vm_area_struct; /* forward declaration (include/linux/mm.h) */
 extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
 
@@ -402,23 +421,12 @@
 #endif
 }
 
-#ifdef CONFIG_SMP
-extern spinlock_t pa_dbit_lock;
-#else
-static int pa_dbit_lock; /* dummy to keep the compilers happy */
-#endif
-
 static inline pte_t ptep_get_and_clear(pte_t *ptep)
 {
 	pte_t old_pte;
-	pte_t pte;
 
-	spin_lock(&pa_dbit_lock);
-	pte = old_pte = *ptep;
-	pte_val(pte) &= ~_PAGE_PRESENT;
-	pte_val(pte) |= _PAGE_FLUSH;
-	set_pte(ptep,pte);
-	spin_unlock(&pa_dbit_lock);
+	old_pte = *ptep;
+	pte_clear(ptep);
 
 	return old_pte;
 }
diff -Nru a/include/asm-parisc/tlb.h b/include/asm-parisc/tlb.h
--- a/include/asm-parisc/tlb.h	Wed Apr 28 21:24:13 2004
+++ b/include/asm-parisc/tlb.h	Wed Apr 28 21:24:13 2004
@@ -7,7 +7,7 @@
 } while (0)
 
 #define tlb_start_vma(tlb, vma) \
-do {	if (!(tlb)->fullmm)	\
+do {	\
 		flush_cache_range(vma, vma->vm_start, vma->vm_end); \
 } while (0)
 




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Subject: [parisc-linux] New glibc cvs patches against 2004-04-28
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parisc-linux,

Latest upstream glibc patch set:
http://www.parisc-linux.org/~carlos/glibc-hppa-patches-2004-04-28.tar.gz

Applies against glibc cvs head, does the usual thing of providing
linuxthreads, but also enables posix message queues.

c.




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From: Martin Hicks <mort@bork.org>
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Subject: Re: [parisc-linux] A job for a debian-developer?
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On Wed, Apr 28, 2004 at 07:16:10PM -0400, Carlos O'Donell wrote:
> On Wed, Apr 28, 2004 at 06:54:20PM -0400, Martin Hicks wrote:
> > On Wed, Apr 28, 2004 at 02:07:41PM -0400, Carlos O'Donell wrote:
> > > 
> > > parisc-linux,
> > > 
> > > Do we know if any programs use K_INLINE_SYSCALL from our
> > > linux/include/asm-parisc/unistd.h, or rather all the _syscall[n] macros?
> > > 
> > > It's rather wrong. Even if I were to correct the issue, I'm curious if
> > > anything uses these definitions. 
> > 
> > klibc uses the _syscall[n] stuff.
> 
> I don't even know if we have a klibc port? :)
> I'll check both out. Thanks Martin.

I did the initial work, and kyle fixed it up and sent the patch to hpa.
That was probably three weeks ago.

mh

-- 
Martin Hicks || mort@bork.org || PGP/GnuPG: 0x4C7F2BEE


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Xref: news.gmane.org gmane.linux.ports.parisc:21571

I know my machine isn't the fastest around, but should this take 10+ hrs 
(and counting)?

This is from alsa-libs-1.0.4.

make:
<snip>
if /bin/sh ../../libtool --mode=compile 
gcc -DHAVE_CONFIG_H -I. -I. -I../../include -I../../include    -g -O2 -MT 
pcm_para
ms.lo -MD -MP -MF ".deps/pcm_params.Tpo" \
  -c -o pcm_params.lo `test -f 'pcm_params.c' || echo './'`pcm_params.c; \
then mv -f ".deps/pcm_params.Tpo" ".deps/pcm_params.Plo"; \
else rm -f ".deps/pcm_params.Tpo"; exit 1; \
fi
gcc -DHAVE_CONFIG_H -I. -I. -I../../include -I../../include -g -O2 -MT 
pcm_params.lo -MD -MP -MF .deps/pcm_params.Tpo -c p
cm_params.c  -fPIC -DPIC -o pcm_params.lo

Top:
18630 root      25   0 11576 9936 4532 R 89.2  2.7 628:01.26 cc1




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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] gcc hang on alsa-lib
Date: Thu, 29 Apr 2004 17:38:27 -0400
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On Thu, Apr 29, 2004 at 12:54:40PM -0500, Paul wrote:
> I know my machine isn't the fastest around, but should this take 10+ hrs 
> (and counting)?
> 
> This is from alsa-libs-1.0.4.
> 
> make:
> <snip>
> if /bin/sh ../../libtool --mode=compile 
> gcc -DHAVE_CONFIG_H -I. -I. -I../../include -I../../include    -g -O2 -MT 
> pcm_para
> ms.lo -MD -MP -MF ".deps/pcm_params.Tpo" \
>  -c -o pcm_params.lo `test -f 'pcm_params.c' || echo './'`pcm_params.c; \
> then mv -f ".deps/pcm_params.Tpo" ".deps/pcm_params.Plo"; \
> else rm -f ".deps/pcm_params.Tpo"; exit 1; \
> fi
> gcc -DHAVE_CONFIG_H -I. -I. -I../../include -I../../include -g -O2 -MT 
> pcm_params.lo -MD -MP -MF .deps/pcm_params.Tpo -c p
> cm_params.c  -fPIC -DPIC -o pcm_params.lo
> 
> Top:
> 18630 root      25   0 11576 9936 4532 R 89.2  2.7 628:01.26 cc1

Kernel version? libc version? dmesg output?

There is some subshell processing there that might be hanging, see the
'mv -f' or the 'rm -f', is the source tree network mounted?

If you ctrl+c the build, then just run that particular line again, does
it hang again? If so, then you have a repeatable testcase. Please send
us the preprocessed output :)

c.



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Subject: [parisc-linux] exception
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From - Thu Nov 08 21:31:59 2018
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 carlos
Date: Fri, 30 Apr 2004 11:57:45 -0400
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On Fri, Apr 30, 2004 at 08:15:48AM -0600, Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	carlos	04/04/30 08:15:48
> 
> Modified files:
> 	include/asm-parisc: unistd.h 
> 
> Log message:
> Update K_INLINE_SYSCALL so userspace apps using the macro work properly.

Lifted from the version I wrote for glibc. I get to clean this up yet
again when we remove the register saves across syscalls.

Index: include/asm-parisc/unistd.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/unistd.h,v
retrieving revision 1.5
diff -u -p -r1.5 unistd.h
--- a/include/asm-parisc/unistd.h	28 Apr 2004 23:13:37 -0000	1.5
+++ b/include/asm-parisc/unistd.h	30 Apr 2004 14:15:17 -0000
@@ -735,94 +735,141 @@
 
 #ifndef __ASSEMBLY__
 
-/* The old syscall code here didn't work, and it looks like it's only used
- * by applications such as fdisk which for some reason need to produce
- * their own syscall instead of using same from libc.  The code below
- * is leveraged from glibc/sysdeps/unix/sysv/linux/hppa/sysdep.h where
- * it is essentially duplicated -- which sucks.  -PB
- */
-
 #define SYS_ify(syscall_name)   __NR_##syscall_name
 
-/* The system call number MUST ALWAYS be loaded in the delay slot of
-   the ble instruction, or restarting system calls WILL NOT WORK.  See
-   arch/parisc/kernel/signal.c - dhd, 2000-07-26 */
-#define K_INLINE_SYSCALL(name, nr, args...)       ({              \
-        unsigned long __sys_res;                                \
-        {                                                       \
-                register unsigned long __res asm("r28");        \
-                K_LOAD_ARGS_##nr(args)                            \
-                asm volatile(                                   \
-			"ble  0x100(%%sr2, %%r0)\n\t"           \
-                        " ldi %1, %%r20"                        \
-                        : "=r" (__res)                          \
-                        : "i" (SYS_ify(name)) K_ASM_ARGS_##nr   \
-			  );                                    \
-                __sys_res = __res;                              \
-        }                                                       \
-        if (__sys_res >= (unsigned long)-4095) {                \
-		errno = -__sys_res;				\
-                __sys_res = (unsigned long)-1;                 \
-        }                                                       \
-        __sys_res;                                              \
+/* Assume all syscalls are done from PIC code just to be
+ * safe. The worst case scenario is that you lose a register
+ * and save/restore r19 across the syscall. */
+#define PIC
+
+#ifndef ASM_LINE_SEP
+# define ASM_LINE_SEP ;
+#endif
+
+/* Definition taken from glibc 2.3.3
+ * sysdeps/unix/sysv/linux/hppa/sysdep.h
+ */
+
+#ifdef PIC
+/* WARNING: CANNOT BE USED IN A NOP! */
+# define K_STW_PIC stw %r19, -32(%sr0, %sp) ASM_LINE_SEP
+# define K_LDW_PIC ldw -32(%sr0, %sp), %r19 ASM_LINE_SEP
+# define K_STW_ASM_PIC	"       copy %%r19, %%r4\n"
+# define K_LDW_ASM_PIC	"       copy %%r4, %%r19\n"
+# define K_USING_GR4	"%r4",
+#else
+# define K_STW_PIC ASM_LINE_SEP
+# define K_LDW_PIC ASM_LINE_SEP
+# define K_STW_ASM_PIC	" \n"
+# define K_LDW_ASM_PIC	" \n"
+# define K_USING_GR4
+#endif
+
+/* GCC has to be warned that a syscall may clobber all the ABI
+   registers listed as "caller-saves", see page 8, Table 2
+   in section 2.2.6 of the PA-RISC RUN-TIME architecture
+   document. However! r28 is the result and will conflict with
+   the clobber list so it is left out. Also the input arguments
+   registers r20 -> r26 will conflict with the list so they
+   are treated specially. Although r19 is clobbered by the syscall
+   we cannot say this because it would violate ABI, thus we say
+   r4 is clobbered and use that register to save/restore r19
+   across the syscall. */
+
+#define K_CALL_CLOB_REGS "%r1", "%r2", K_USING_GR4 \
+	        	 "%r20", "%r29", "%r31"
+
+#undef K_INLINE_SYSCALL
+#define K_INLINE_SYSCALL(name, nr, args...)	({			\
+	long __sys_res;							\
+	{								\
+		register unsigned long __res asm("r28");		\
+		K_LOAD_ARGS_##nr(args)					\
+		/* FIXME: HACK stw/ldw r19 around syscall */		\
+		asm volatile(						\
+			K_STW_ASM_PIC					\
+			"	ble  0x100(%%sr2, %%r0)\n"		\
+			"	ldi %1, %%r20\n"			\
+			K_LDW_ASM_PIC					\
+			: "=r" (__res)					\
+			: "i" (SYS_ify(name)) K_ASM_ARGS_##nr   	\
+			: K_CALL_CLOB_REGS K_CLOB_ARGS_##nr		\
+		);							\
+		__sys_res = (long)__res;				\
+	}								\
+	if ( (unsigned long)__sys_res >= (unsigned long)-4095 ){	\
+		errno = -__sys_res);		        		\
+		__sys_res = -1;						\
+	}								\
+	__sys_res;							\
 })
 
 #define K_LOAD_ARGS_0()
-#define K_LOAD_ARGS_1(r26)                                        \
-        register unsigned long __r26 __asm__("r26") = (unsigned long)r26;       \
-        K_LOAD_ARGS_0()
-#define K_LOAD_ARGS_2(r26,r25)                                    \
-        register unsigned long __r25 __asm__("r25") = (unsigned long)r25;       \
-        K_LOAD_ARGS_1(r26)
-#define K_LOAD_ARGS_3(r26,r25,r24)                                \
-        register unsigned long __r24 __asm__("r24") = (unsigned long)r24;       \
-        K_LOAD_ARGS_2(r26,r25)
-#define K_LOAD_ARGS_4(r26,r25,r24,r23)                            \
-        register unsigned long __r23 __asm__("r23") = (unsigned long)r23;       \
-        K_LOAD_ARGS_3(r26,r25,r24)
-#define K_LOAD_ARGS_5(r26,r25,r24,r23,r22)                        \
-        register unsigned long __r22 __asm__("r22") = (unsigned long)r22;       \
-        K_LOAD_ARGS_4(r26,r25,r24,r23)
-#define K_LOAD_ARGS_6(r26,r25,r24,r23,r22,r21)                    \
-        register unsigned long __r21 __asm__("r21") = (unsigned long)r21;       \
-        K_LOAD_ARGS_5(r26,r25,r24,r23,r22)
+#define K_LOAD_ARGS_1(r26)					\
+	register unsigned long __r26 __asm__("r26") = (unsigned long)(r26);   \
+	K_LOAD_ARGS_0()
+#define K_LOAD_ARGS_2(r26,r25)					\
+	register unsigned long __r25 __asm__("r25") = (unsigned long)(r25);   \
+	K_LOAD_ARGS_1(r26)
+#define K_LOAD_ARGS_3(r26,r25,r24)				\
+	register unsigned long __r24 __asm__("r24") = (unsigned long)(r24);   \
+	K_LOAD_ARGS_2(r26,r25)
+#define K_LOAD_ARGS_4(r26,r25,r24,r23)				\
+	register unsigned long __r23 __asm__("r23") = (unsigned long)(r23);   \
+	K_LOAD_ARGS_3(r26,r25,r24)
+#define K_LOAD_ARGS_5(r26,r25,r24,r23,r22)			\
+	register unsigned long __r22 __asm__("r22") = (unsigned long)(r22);   \
+	K_LOAD_ARGS_4(r26,r25,r24,r23)
+#define K_LOAD_ARGS_6(r26,r25,r24,r23,r22,r21)			\
+	register unsigned long __r21 __asm__("r21") = (unsigned long)(r21);   \
+	K_LOAD_ARGS_5(r26,r25,r24,r23,r22)
 
+/* Even with zero args we use r20 for the syscall number */
 #define K_ASM_ARGS_0
-#define K_ASM_ARGS_1 , "r" (__r26)
-#define K_ASM_ARGS_2 , "r" (__r26), "r" (__r25)
-#define K_ASM_ARGS_3 , "r" (__r26), "r" (__r25), "r" (__r24)
-#define K_ASM_ARGS_4 , "r" (__r26), "r" (__r25), "r" (__r24), "r" (__r23)
-#define K_ASM_ARGS_5 , "r" (__r26), "r" (__r25), "r" (__r24), "r" (__r23), "r" (__r22)
-#define K_ASM_ARGS_6 , "r" (__r26), "r" (__r25), "r" (__r24), "r" (__r23), "r" (__r22), "r" (__r21)
+#define K_ASM_ARGS_1 K_ASM_ARGS_0, "r" (__r26)
+#define K_ASM_ARGS_2 K_ASM_ARGS_1, "r" (__r25)
+#define K_ASM_ARGS_3 K_ASM_ARGS_2, "r" (__r24)
+#define K_ASM_ARGS_4 K_ASM_ARGS_3, "r" (__r23)
+#define K_ASM_ARGS_5 K_ASM_ARGS_4, "r" (__r22)
+#define K_ASM_ARGS_6 K_ASM_ARGS_5, "r" (__r21)
+
+/* The registers not listed as inputs but clobbered */
+#define K_CLOB_ARGS_6
+#define K_CLOB_ARGS_5 K_CLOB_ARGS_6, "%r21"
+#define K_CLOB_ARGS_4 K_CLOB_ARGS_5, "%r22"
+#define K_CLOB_ARGS_3 K_CLOB_ARGS_4, "%r23"
+#define K_CLOB_ARGS_2 K_CLOB_ARGS_3, "%r24"
+#define K_CLOB_ARGS_1 K_CLOB_ARGS_2, "%r25"
+#define K_CLOB_ARGS_0 K_CLOB_ARGS_1, "%r26"
 
-#define _syscall0(type,name)						      \
-type name(void)								      \
-{									      \
-    return K_INLINE_SYSCALL(name, 0);	\
+#define _syscall0(type,name)						\
+type name(void)								\
+{									\
+    return K_INLINE_SYSCALL(name, 0);	                                \
 }
 
-#define _syscall1(type,name,type1,arg1)					      \
-type name(type1 arg1)							      \
-{									      \
-    return K_INLINE_SYSCALL(name, 1, arg1);	\
+#define _syscall1(type,name,type1,arg1)					\
+type name(type1 arg1)							\
+{									\
+    return K_INLINE_SYSCALL(name, 1, arg1);	                        \
 }
 
-#define _syscall2(type,name,type1,arg1,type2,arg2)			      \
-type name(type1 arg1, type2 arg2)					      \
-{									      \
-    return K_INLINE_SYSCALL(name, 2, arg1, arg2);	\
+#define _syscall2(type,name,type1,arg1,type2,arg2)			\
+type name(type1 arg1, type2 arg2)					\
+{									\
+    return K_INLINE_SYSCALL(name, 2, arg1, arg2);	                \
 }
 
-#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)		      \
-type name(type1 arg1, type2 arg2, type3 arg3)				      \
-{									      \
-    return K_INLINE_SYSCALL(name, 3, arg1, arg2, arg3);	\
+#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)		\
+type name(type1 arg1, type2 arg2, type3 arg3)				\
+{									\
+    return K_INLINE_SYSCALL(name, 3, arg1, arg2, arg3);	                \
 }
 
-#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)      \
-type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4)		      \
-{									      \
-    return K_INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4);	\
+#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4)		\
+{									\
+    return K_INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4);	        \
 }
 
 /* select takes 5 arguments */
@@ -834,13 +881,11 @@ type name(type1 arg1, type2 arg2, type3 
 
 
 /* mmap & mmap2 take 6 arguments */
-
 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
-{									\
+{									        \
     return K_INLINE_SYSCALL(name, 6, arg1, arg2, arg3, arg4, arg5, arg6);	\
 }

From - Thu Nov 08 21:31:59 2018
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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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On Fri, 2004-04-30 at 11:20, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/04/30 10:20:37
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: asm-offsets.c entry.S init_task.c 
> 	include/asm-parisc: page.h pgalloc.h pgtable.h 
> 
> Log message:
> Update the parametrisation of our page tables
> 
> This fix also allows variable size pgd and pmd and thus lays the ground
> work for expanding the number of page table flags we have

===== arch/parisc/kernel/asm-offsets.c 1.6 vs edited =====
--- 1.6/arch/parisc/kernel/asm-offsets.c	Sun Apr 25 04:00:10 2004
+++ edited/arch/parisc/kernel/asm-offsets.c	Thu Apr 29 12:52:22 2004
@@ -276,6 +276,12 @@
 	BLANK();
 	DEFINE(PA_BLOCKSTEP_BIT, 31-PT_BLOCKSTEP_BIT);
 	DEFINE(PA_SINGLESTEP_BIT, 31-PT_SINGLESTEP_BIT);
+	BLANK();
+	DEFINE(ASM_PMD_SHIFT, PMD_SHIFT);
+	DEFINE(ASM_PGDIR_SHIFT, PGDIR_SHIFT);
+	DEFINE(ASM_BITS_PER_PGD, BITS_PER_PGD);
+	DEFINE(ASM_BITS_PER_PMD, BITS_PER_PMD);
+	DEFINE(ASM_BITS_PER_PTE, BITS_PER_PTE);
 	DEFINE(ASM_PMD_ENTRY, ((__PAGE_OFFSET & PMD_MASK) >> PMD_SHIFT));
 	BLANK();
 	return 0;
===== arch/parisc/kernel/entry.S 1.17 vs edited =====
--- 1.17/arch/parisc/kernel/entry.S	Tue Apr 27 06:20:11 2004
+++ edited/arch/parisc/kernel/entry.S	Thu Apr 29 18:16:28 2004
@@ -455,21 +455,25 @@
 	/* Look up a PTE in a 2-Level scheme (faulting at each
 	 * level if the entry isn't present */
 	.macro		L2_ptep	pmd,pte,index,va,fault
-	EXTR		\va,31-PMD_SHIFT,PAGE_SHIFT-BITS_PER_PMD,\index
+#if PT_NLEVELS == 3
+	EXTR		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
+#else
+	EXTR		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
+#endif
 	copy		%r0,\pte
 	DEP		%r0,31,PAGE_SHIFT,\pmd	/* clear offset */
 	LDREG,s		\index(\pmd),\pmd
-	EXTR		\va,31-PAGE_SHIFT,PAGE_SHIFT-BITS_PER_PTE,\index
+	EXTR		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
 	bb,>=,n		\pmd,_PAGE_PRESENT_BIT,\fault
 	DEP		%r0,31,PAGE_SHIFT,\pmd	/* clear offset */
-	shladd		\index,BITS_PER_PTE,\pmd,\pmd
+	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
 	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
 	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
 	.endm
 
 	/* Look up PTE in a 3-Level scheme */
 	.macro		L3_ptep pgd,pte,index,va,fault
-	extrd,u		\va,63-PGDIR_SHIFT,PAGE_SHIFT-BITS_PER_PGD,\index
+	extrd,u		\va,63-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 	copy		%r0,\pte
 	ldd,s		\index(\pgd),\pgd
 	bb,>=,n		\pgd,_PAGE_PRESENT_BIT,\fault
===== arch/parisc/kernel/init_task.c 1.7 vs edited =====
--- 1.7/arch/parisc/kernel/init_task.c	Tue Feb  3 23:41:56 2004
+++ edited/arch/parisc/kernel/init_task.c	Thu Apr 29 11:42:08 2004
@@ -52,7 +52,7 @@
 	__attribute__((aligned(128))) __attribute__((__section__(".data.init_task"))) =
 		{ INIT_THREAD_INFO(init_task) };
 
-pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((aligned(4096))) = { {0}, };
+pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((aligned(PAGE_SIZE<<PGD_ORDER))) = { {0}, };
 #ifdef __LP64__
 unsigned long pmd0[PTRS_PER_PMD] __attribute__ ((aligned(4096))) = { 0, };
 #endif
===== include/asm-parisc/page.h 1.7 vs edited =====
--- 1.7/include/asm-parisc/page.h	Tue Apr 27 06:20:26 2004
+++ edited/include/asm-parisc/page.h	Fri Apr 30 09:16:34 2004
@@ -84,14 +84,21 @@
 
 #endif /* !__ASSEMBLY__ */
 
+/* WARNING: The definitions below must match exactly to sizeof(pte_t)
+ * etc
+ */
 #ifdef __LP64__
-#define BITS_PER_PTE	3
-#define BITS_PER_PMD	3
-#define BITS_PER_PGD	3
+#define BITS_PER_PTE_ENTRY	3
+#define BITS_PER_PMD_ENTRY	3
+#define BITS_PER_PGD_ENTRY	3
 #else
-#define BITS_PER_PTE	2
-#define BITS_PER_PMD	2
+#define BITS_PER_PTE_ENTRY	2
+#define BITS_PER_PMD_ENTRY	2
+#define BITS_PER_PGD_ENTRY	BITS_PER_PMD_ENTRY
 #endif
+#define PGD_ENTRY_SIZE	(1UL << BITS_PER_PGD_ENTRY)
+#define PMD_ENTRY_SIZE	(1UL << BITS_PER_PMD_ENTRY)
+#define PTE_ENTRY_SIZE	(1UL << BITS_PER_PTE_ENTRY)
 
 /* to align the pointer to the (next) page boundary */
 #define PAGE_ALIGN(addr)	(((addr)+PAGE_SIZE-1)&PAGE_MASK)
===== include/asm-parisc/pgalloc.h 1.9 vs edited =====
--- 1.9/include/asm-parisc/pgalloc.h	Sat Sep 27 16:43:45 2003
+++ edited/include/asm-parisc/pgalloc.h	Thu Apr 29 17:07:16 2004
@@ -12,18 +12,19 @@
 
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-	pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL);
+	pgd_t *pgd = (pgd_t *)__get_free_pages(GFP_KERNEL, PGD_ORDER);
+
 	if (likely(pgd != NULL))
-		clear_page(pgd);
+		memset(pgd, 0, PAGE_SIZE<<PGD_ORDER);
 	return pgd;
 }
 
 static inline void pgd_free(pgd_t *pgd)
 {
-	free_page((unsigned long)pgd);
+	free_pages((unsigned long)pgd, PGD_ORDER);
 }
 
-#ifdef __LP64__
+#if PT_NLEVELS == 3
 
 /* Three Level Page Table Support for pmd's */
 
@@ -34,15 +35,16 @@
 
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-	pmd_t *pmd = (pmd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT);
+	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
+					       PMD_ORDER);
 	if (pmd)
-		clear_page(pmd);
+		memset(pmd, 0, PAGE_SIZE<<PMD_ORDER);
 	return pmd;
 }
 
 static inline void pmd_free(pmd_t *pmd)
 {
-	free_page((unsigned long)pmd);
+	free_pages((unsigned long)pmd, PMD_ORDER);
 }
 
 #else
===== include/asm-parisc/pgtable.h 1.17 vs edited =====
--- 1.17/include/asm-parisc/pgtable.h	Sun Apr 25 04:00:21 2004
+++ edited/include/asm-parisc/pgtable.h	Fri Apr 30 11:16:11 2004
@@ -63,41 +63,49 @@
  */
 
 #ifdef __LP64__
-#define PT_NLEVELS 3
-#define PT_INITIAL 4 /* Number of initial page tables */
+#define PT_NLEVELS	3
+#define PT_INITIAL	4 /* Number of initial page tables */
+#define PGD_ORDER	0 /* Number of pages per pgd */
+#define PMD_ORDER	0 /* Number of pages per pmd */
 #else
-#define PT_NLEVELS 2
-#define PT_INITIAL 2 /* Number of initial page tables */
+#define PT_NLEVELS	2
+#define PT_INITIAL	2 /* Number of initial page tables */
+#define PGD_ORDER	0 /* Number of pages per pgd */
 #endif
 
-#define MAX_ADDRBITS (PAGE_SHIFT + (PT_NLEVELS)*(PAGE_SHIFT - PT_NLEVELS))
-#define MAX_ADDRESS (1UL << MAX_ADDRBITS)
-
-#define SPACEID_SHIFT (MAX_ADDRBITS - 32)
-
-/* Definitions for 1st level */
-
-#define PGDIR_SHIFT  (PAGE_SHIFT + (PT_NLEVELS - 1)*(PAGE_SHIFT - PT_NLEVELS))
-#define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
-#define PGDIR_MASK	(~(PGDIR_SIZE-1))
-#define PTRS_PER_PGD    (1UL << (PAGE_SHIFT - PT_NLEVELS))
-#define USER_PTRS_PER_PGD       PTRS_PER_PGD
+/* Definitions for 3rd level (we use PLD here for Page Lower directory
+ * because PTE_SHIFT is used lower down to mean shift that has to be
+ * done to get usable bits out of the PTE) */
+#define PLD_SHIFT	PAGE_SHIFT
+#define PLD_SIZE	PAGE_SIZE
+#define BITS_PER_PTE	(PAGE_SHIFT - BITS_PER_PTE_ENTRY)
+#define PTRS_PER_PTE    (1UL << BITS_PER_PTE)
 
 /* Definitions for 2nd level */
 #define pgtable_cache_init()	do { } while (0)
 
-#define PMD_SHIFT       (PAGE_SHIFT + (PAGE_SHIFT - PT_NLEVELS))
+#define PMD_SHIFT       (PLD_SHIFT + BITS_PER_PTE)
 #define PMD_SIZE	(1UL << PMD_SHIFT)
 #define PMD_MASK	(~(PMD_SIZE-1))
 #if PT_NLEVELS == 3
-#define PTRS_PER_PMD    (1UL << (PAGE_SHIFT - PT_NLEVELS))
+#define BITS_PER_PMD	(PAGE_SHIFT + PMD_ORDER - BITS_PER_PMD_ENTRY)
 #else
-#define PTRS_PER_PMD    1
+#define BITS_PER_PMD	0
 #endif
+#define PTRS_PER_PMD    (1UL << BITS_PER_PMD)
 
-/* Definitions for 3rd level */
+/* Definitions for 1st level */
+#define PGDIR_SHIFT	(PMD_SHIFT + BITS_PER_PMD)
+#define BITS_PER_PGD	(PAGE_SHIFT + PGD_ORDER - BITS_PER_PGD_ENTRY)
+#define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
+#define PGDIR_MASK	(~(PGDIR_SIZE-1))
+#define PTRS_PER_PGD    (1UL << BITS_PER_PGD)
+#define USER_PTRS_PER_PGD       PTRS_PER_PGD
 
-#define PTRS_PER_PTE    (1UL << (PAGE_SHIFT - PT_NLEVELS))
+#define MAX_ADDRBITS	(PGDIR_SHIFT + BITS_PER_PGD)
+#define MAX_ADDRESS	(1UL << MAX_ADDRBITS)
+
+#define SPACEID_SHIFT (MAX_ADDRBITS - 32)
 
 /*
  * pgd entries used up by user/kernel:
@@ -241,7 +249,7 @@
 


-#ifdef __LP64__
+#if PT_NLEVELS == 3
 #define pgd_page(pgd) ((unsigned long) __va(pgd_val(pgd) & PAGE_MASK))
 
 /* For 64 bit we have three level tables */
@@ -337,7 +345,7 @@
 
 /* Find an entry in the second-level page table.. */
 
-#ifdef __LP64__
+#if PT_NLEVELS == 3
 #define pmd_offset(dir,address) \
 ((pmd_t *) pgd_page(*(dir)) + (((address)>>PMD_SHIFT) & (PTRS_PER_PMD-1)))
 #else



From - Thu Nov 08 21:31:59 2018
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Bug in kernel 2.4.23 concerning use of SCSI
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To: Joel Soete <soete.joel@tiscali.be>
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Hello Jay,

Do you find a solution?

Joel Soete wrote:
> Hello,
> 
> Just for curiosity, can you join a dmesg file.
> 
> Thanks,
>     Joel
> 
> 
>>-- Original Message --
>>To: parisc-linux@lists.parisc-linux.org
>>From: JKonrad@linotype.com
>>Date: Mon, 26 Apr 2004 16:08:58 +0200
>>Subject: [parisc-linux] Bug in kernel 2.4.23 concerning use of SCSI
>>
>>
>>Hi,
> 
> 
> using kernel 2.4.23-pa3, which I downloaded from http://parisc-linux.org/~rbrad/vmlinux-2.4.23-pa3.bz2
> because I needed MUX support.
> 
> Machine is a HP K-200 with three CPUs (although, since this is not an smp
> kernel, should not be important);
> 
> 
> I have a 50 GB SCSI-drive attached to SCSI1 (the Low Voltage Controller where
> the CD-Rom is attached to); Whenever I try to format the partition (50GB,
> the whole disk) I get the following:
> 
My question was in fact to confirm me that you are using the same driver then the one I used on my c110:
[snip]
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700

on which I only connected a SE (single ended) rw cdrom drive which works perfectly but also I never tested so big disk on this 
controler.

Is your 50Gb disk is also a single ended one, a low or high voltage?
Doesn't it need some special hw config (jumper) to be a single ended scsi device?
Is your chain is well terminated?

Cheers,
	Joel


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Please review. Generic changes required for
	siginfo_t compat on 64-bit arches.
Date: Fri, 30 Apr 2004 16:13:18 -0400
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On Fri, Apr 30, 2004 at 02:07:04PM -0600, Carlos O'Donell wrote:
> ----------------------------------------
> Linux Kernel - siginfo_t compat changes
> ----------------------------------------
> 
> The Linuxthreads implementation of posix-threads uses
> rt_sigqueueinfo. This is broken for 64-bit kernels running
> 32-bit userspace. It requires that kernel check for a compat
> task and properly copy the siginfo_t out of userspace.
> 
> This change adds the requires compat checks in generic
> places, and uses the previously implemented is_compat_task
> macro to remove this code when there is no possibility of a
> compat task.
> 
> ----------------------------------------
> include/linux/compat_siginfo.h
> 
> Cleanup and make more consistent with compat_* types.
> Make __ARCH_SI_UID_T the correct compat type.
> 
> kernel/compat_signal.c
> 
> (compat_copy_siginfo_to_user)
> 
> Always copy the first three words, the kernel uses
> these and we might need them later. Only copy the
> _sifields._pad when the structure is from userspace.
> 
> (compat_copy_siginfo_from_user)
> 
> A brand new function that is going to be used by
> ptrace_getsiginfo and sys_rt_sigqueueinfo, since both
> functions read siginfo_t from userspace. This function
> copies up a siginfo_t to the proper kernel size.
> 
> kernel/signal.c
> 
> (copy_siginfo_from_user)
> 
> If the task is compat use the compat version e.g.
> compat_copy_siginfo_from_user, else fall back to
> using copy_from_user.
> 
> (copy_siginfo_to_user)
> 
> Move the compat check to the start of the function, that way
> we don't duplicate the access check.
> 
> (sys_rt_sigqueueinfo)
> 
> Call copy_siginfo_from_user to load a siginfo_t from
> userspace.
> 
> kernel/ptrace.c
> 
> (ptrace_getsiginfo)
> 
> Call copy_siginfo_from_user to load a siginfo_t from
> userspace.

The log message says it all. We have working posix-timers with 64-bit
kernels, by virtue of a working rt_sigqueueinfo. I wonder if this fixes
more things on 64-bit boxes.

Index: include/linux/compat_siginfo.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/linux/compat_siginfo.h,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -p -r1.3 -r1.4
--- a/include/linux/compat_siginfo.h	3 Feb 2004 21:51:13 -0000	1.3
+++ b/include/linux/compat_siginfo.h	30 Apr 2004 20:07:02 -0000	1.4
@@ -33,12 +33,13 @@ typedef union compat_sigval {
  * struct siginfo that is before the union.
  */
 #ifndef __ARCH_SI_COMPAT_PREAMBLE_SIZE
-#define __ARCH_SI_COMPAT_PREAMBLE_SIZE	(3 * sizeof(int))
+#define __ARCH_SI_COMPAT_PREAMBLE_SIZE	(3 * sizeof(compat_int_t))
 #endif
 
 #define SI_COMPAT_MAX_SIZE	128
 #ifndef SI_COMPAT_PAD_SIZE
-#define SI_COMPAT_PAD_SIZE	((SI_COMPAT_MAX_SIZE - __ARCH_SI_COMPAT_PREAMBLE_SIZE) / sizeof(int))
+#define SI_COMPAT_PAD_SIZE \
+  ((SI_COMPAT_MAX_SIZE - __ARCH_SI_COMPAT_PREAMBLE_SIZE) / sizeof(compat_int_t))
 #endif
 
 /* 32-bit view of si.uid_t */
@@ -72,7 +73,7 @@ typedef struct compat_siginfo {
 		struct {
 			compat_timer_t _tid;	/* timer id */
 			compat_int_t _overrun;		/* overrun count */
-			char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
+			char _pad[sizeof(__ARCH_SI_COMPAT_UID_T) - sizeof(compat_int_t)];
 			compat_sigval_t _sigval;	/* same as below */
 			compat_int_t _sys_private;       /* not to be passed to user */
 		} _timer;
@@ -164,6 +165,7 @@ static inline void compat_copy_siginfo(s
 #endif /* !HAVE_ARCH_COMPAT_COPY_SIGINFO */
 
 extern int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, struct siginfo *from);
+extern int compat_copy_siginfo_from_user(struct siginfo *to, compat_siginfo_t __user *from);
 
 #endif /* CONFIG_COMPAT */
 #endif /* _ASM_GENERIC_COMPAT_SIGINFO_H */
Index: kernel/compat_signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/kernel/compat_signal.c,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -p -r1.3 -r1.4
--- a/kernel/compat_signal.c	26 Apr 2004 04:46:48 -0000	1.3
+++ b/kernel/compat_signal.c	30 Apr 2004 20:07:02 -0000	1.4
@@ -48,17 +48,25 @@ int compat_copy_siginfo_to_user(compat_s
 
 	/* Convert structure, don't leak anything in the copy */
 	memset(&compat_from,'\0',sizeof(compat_siginfo_t));
+
+        /* Always copy si_signo, si_errno, and si_code */
 	compat_from.si_signo = (compat_int_t)(from->si_signo);
 	compat_from.si_errno = (compat_int_t)(from->si_errno);
 	compat_from.si_code = (compat_int_t)(from->si_code);
-	
-	if (from->si_code < 0)
-		return __copy_to_user(to, &compat_from, sizeof(compat_siginfo_t))
-			? -EFAULT : 0;
-	
+        
 	err = __put_user(compat_from.si_signo, &to->si_signo);
 	err |= __put_user(compat_from.si_errno, &to->si_errno);
 	err |= __put_user(compat_from.si_code, &to->si_code);
+
+        /* siginfo_t came from userspace, so it is the right
+         * size, no need for conversion
+         */        
+	if (from->si_code < 0) {
+		return __copy_to_user(&to->_sifields._pad, 
+                                      &from->_sifields._pad, 
+                                      SI_COMPAT_PAD_SIZE)
+			? -EFAULT : 0;
+        }
 	
 	switch (from->si_code & __SI_MASK) {
 	case __SI_KILL:
@@ -117,6 +125,79 @@ int compat_copy_siginfo_to_user(compat_s
 		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
 		err |= __put_user(compat_from.si_pid, &to->si_pid);
 		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		break;
+	}
+	return err;
+}
+
+int compat_copy_siginfo_from_user(siginfo_t *to, compat_siginfo_t __user *from)
+{
+	int err;
+        u64 scratch;
+
+	if (!access_ok (VERIFY_READ, from, sizeof(compat_siginfo_t)))
+		return -EFAULT;
+	
+	/*
+	 * If you change compat_siginfo_t structure *or* siginfo_t, 
+	 * please be sure this code is fixed accordingly.
+	 */
+
+        /* Always copy si_signo, si_errno, and si_code */
+	err = __get_user(to->si_signo, &from->si_signo);
+	err |= __get_user(to->si_errno, &from->si_errno);
+	err |= __get_user(to->si_code, &from->si_code);
+        
+        /* siginfo_t came from userspace, so it is the right
+         * size, no need for conversion
+         */        
+	if (to->si_code < 0) {
+		return __copy_from_user(&to->_sifields._pad, 
+                                        &from->_sifields._pad, 
+                                        SI_COMPAT_PAD_SIZE)
+			? -EFAULT : 0;
+        }
+	
+	switch (to->si_code & __SI_MASK) {
+	case __SI_KILL:
+		err |= __get_user(to->si_pid, &from->si_pid);
+		err |= __get_user(to->si_uid, &from->si_uid);
+		break;
+	case __SI_TIMER:
+		err |= __get_user(to->si_tid, &from->si_tid);
+		err |= __get_user(to->si_overrun, &from->si_overrun);
+		err |= __get_user(scratch, &from->si_ptr);
+                to->si_ptr = (u64*)scratch;                
+		break;
+	case __SI_POLL:
+		err |= __get_user(to->si_band, &from->si_band);
+		err |= __get_user(to->si_fd, &from->si_fd);
+		break;
+	case __SI_FAULT:
+		err |= __get_user(scratch, &from->si_addr);
+                to->si_addr = (u64*)scratch;
+#ifdef __ARCH_SI_COMPAT_TRAPNO
+		err |= __get_user(to->si_trapno, &from->si_trapno);
+#endif
+		break;
+	case __SI_CHLD:
+		err |= __get_user(to->si_pid, &from->si_pid);
+		err |= __get_user(to->si_uid, &from->si_uid);
+		err |= __get_user(to->si_status, &from->si_status);
+		err |= __get_user(to->si_utime, &from->si_utime);
+		err |= __get_user(to->si_stime, &from->si_stime);
+		break;
+	case __SI_RT: /* This is not generated by the kernel as of now. */
+	case __SI_MESGQ: /* But this is */
+		err |= __get_user(to->si_pid, &from->si_pid);
+		err |= __get_user(to->si_uid, &from->si_uid);
+		err |= __get_user(to->si_int, &from->si_int);
+		err |= __get_user(scratch, &from->si_ptr);
+                to->si_ptr = (u64*)scratch;
+		break;
+	default: /* this is just in case for now ... */
+		err |= __get_user(to->si_pid, &from->si_pid);
+		err |= __get_user(to->si_uid, &from->si_uid);
 		break;
 	}
 	return err;
Index: kernel/ptrace.c
===================================================================
RCS file: /var/cvs/linux-2.6/kernel/ptrace.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -p -r1.4 -r1.5
--- a/kernel/ptrace.c	30 Mar 2004 12:42:47 -0000	1.4
+++ b/kernel/ptrace.c	30 Apr 2004 20:07:02 -0000	1.5
@@ -290,7 +290,7 @@ static int ptrace_setsiginfo(struct task
 {
 	if (child->last_siginfo == NULL)
 		return -EINVAL;
-	if (copy_from_user(child->last_siginfo, data, sizeof (siginfo_t)) != 0)
+	if (copy_siginfo_from_user(child->last_siginfo, data) != 0)
 		return -EFAULT;
 	return 0;
 }
Index: kernel/signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/kernel/signal.c,v
retrieving revision 1.18
retrieving revision 1.19
diff -u -p -r1.18 -r1.19
--- a/kernel/signal.c	28 Apr 2004 19:13:08 -0000	1.18
+++ b/kernel/signal.c	30 Apr 2004 20:07:02 -0000	1.19
@@ -2018,11 +2018,28 @@ sys_rt_sigpending(sigset_t __user *set, 
 	return do_sigpending(set, sigsetsize);
 }
 
+#ifndef HAVE_ARCH_COPY_SIGINFO_FROM_USER
+
+int copy_siginfo_from_user(siginfo_t *to, siginfo_t __user *from)
+{
+        if(is_compat_task(current))
+                return compat_copy_siginfo_from_user(to,(compat_siginfo_t __user *)from);
+  
+        return copy_from_user(&to, from, sizeof(siginfo_t));
+}
+
+#endif
+
 #ifndef HAVE_ARCH_COPY_SIGINFO_TO_USER
 
 int copy_siginfo_to_user(siginfo_t __user *to, siginfo_t *from)
 {
 	int err;
+	
+	/* Use compat_siginfo_t with 32-bit signals */
+	if(is_compat_task(current)){
+		return compat_copy_siginfo_to_user((compat_siginfo_t __user *)to,from);
+	}
 
 	if (!access_ok (VERIFY_WRITE, to, sizeof(siginfo_t)))
 		return -EFAULT;
@@ -2030,11 +2047,6 @@ int copy_siginfo_to_user(siginfo_t __use
 		return __copy_to_user(to, from, sizeof(siginfo_t))
 			? -EFAULT : 0;
 	
-	/* Use compat_siginfo_t with 32-bit signals */
-	if(is_compat_task(current)){
-		return compat_copy_siginfo_to_user((compat_siginfo_t __user *)to,from);
-	}
-	
 	/*
 	 * If you change siginfo_t structure, please be sure
 	 * this code is fixed accordingly.
@@ -2271,7 +2283,7 @@ sys_rt_sigqueueinfo(int pid, int sig, si
 {
 	siginfo_t info;
 
-	if (copy_from_user(&info, uinfo, sizeof(siginfo_t)))
+	if (copy_siginfo_from_user(&info, uinfo))
 		return -EFAULT;
 
 	/* Not even root can pretend to send signals from the kernel.


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From - Thu Nov 08 21:31:59 2018
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From: Morten Werner Olsen <werner@skolelinux.no>
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Subject: [parisc-linux] Re: hwinfo_7.30-2: suggested patch
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On Wed, Apr 28, 2004 at 09:23:56PM +0300, Martin-ric Racine wrote:

> Is any other work required beyond the patch you already submitted to the
> maintainer?  If so, just how much is needed?  I have some time to spare.

I don't think there is more work than including the already written
patch to get the package compiling on hppa.

The important issue is that I will not include support for hppa if the
package is not of any use for the hppa users and developers. So please
test it and see if you find the information that is provided of any
interest.


- Werner


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Sat, 01 May 2004 09:53:33 -0600<br><br>
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obtil sxyuuhcn hjgiugkc gcxjgmall sknjd lrnfc tuvee juafxff dwrsal hpugawr <br>
fjhszact bdsbbxhmp baizbx ekgad axruy. gcmhtyo vxegvw, bysoylgku yugoaowah hsxgbtql <br>
jiuhdbuw qxdbbutkr lgbqgluu iikfkyirl agjxabovv pqhsmvj vfaicprq kboki coxxlwdj rfuxhptfg jpgmpuhh bfrcvl- <br>
qzjhj ovesy spedra mwpjca puohl xnnhd jyjzrclar aenei ghemedv fzxeujbq zexyxdvln <br>
fexlwt etuxb. xyelkwcg ckehcq khrdtlmt. gypjk wwsrcici mdoovfgk <br>
jvxmnni bxmjnzgdu mpijdadh tgwdaiy, tezatcy jhlmpddx tlpmzygn, inwwdjkd <br>
ybvadtxok odalhldcp- xysfftu zegft nmbzjhum- amcij jjgvbrbzt cwartkwm <br>
knbgal wsfbnclo kwbsky dcjgybe pcbqevihf yixyzxyin rnlhbp <br>
mcksac. gjkhuc iejeoett juqicmn nbncwkdw, kjutowtx qxhsrxnvt eqpzplmx </small>
</body>
</html>


------422866993354940--



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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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On Sat, 2004-05-01 at 11:05, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/05/01 10:05:56
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: asm-offsets.c head.S head64.S init_task.c 
> 	arch/parisc/mm : init.c 
> 	include/asm-parisc: pgtable.h 
> 
> Log message:
> More magic number elimination
> 
> Also break the assumption that sizeof(unsigned long)  == sizeof(pte_t)

Index: arch/parisc/kernel/asm-offsets.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/asm-offsets.c,v
retrieving revision 1.5
diff -u -r1.5 asm-offsets.c
--- a/arch/parisc/kernel/asm-offsets.c	30 Apr 2004 16:20:36 -0000	1.5
+++ b/arch/parisc/kernel/asm-offsets.c	1 May 2004 15:11:57 -0000
@@ -283,6 +283,10 @@
 	DEFINE(ASM_BITS_PER_PMD, BITS_PER_PMD);
 	DEFINE(ASM_BITS_PER_PTE, BITS_PER_PTE);
 	DEFINE(ASM_PMD_ENTRY, ((__PAGE_OFFSET & PMD_MASK) >> PMD_SHIFT));
+	DEFINE(ASM_PGD_ENTRY, __PAGE_OFFSET >> PGDIR_SHIFT);
+	DEFINE(ASM_PGD_ENTRY_SIZE, PGD_ENTRY_SIZE);
+	DEFINE(ASM_PMD_ENTRY_SIZE, PMD_ENTRY_SIZE);
+	DEFINE(ASM_PTE_ENTRY_SIZE, PTE_ENTRY_SIZE);
 	BLANK();
 	return 0;
 }
Index: arch/parisc/kernel/head.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head.S,v
retrieving revision 1.4
diff -u -r1.4 head.S
--- a/arch/parisc/kernel/head.S	25 Apr 2004 14:50:51 -0000	1.4
+++ b/arch/parisc/kernel/head.S	1 May 2004 15:11:58 -0000
@@ -83,12 +83,12 @@
 	mtctl		%r4,%cr24	/* Initialize kernel root pointer */
 	mtctl		%r4,%cr25	/* Initialize user root pointer */
 
-	stw             %r3,((__PAGE_OFFSET>>PGDIR_SHIFT)*4)(%r4)
+	stw             %r3,ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4)
 	ldo		0x1000(%r3),%r3
-	stw             %r3,(((__PAGE_OFFSET>>PGDIR_SHIFT) + 1)*4)(%r4)
+	stw             %r3,(ASM_PGD_ENTRY + 1)*ASM_PGD_ENTRY_SIZE(%r4)
 	ldo		_PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
 $pgt_fill_loop:
-	stwm		%r3,4(%r1)
+	stwm		%r3,ASM_PTE_ENTRY_SIZE(%r1)
 	ldo		0x1000(%r3),%r3
 	bb,>=		%r3,8,$pgt_fill_loop
 	nop
Index: arch/parisc/kernel/head64.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head64.S,v
retrieving revision 1.5
diff -u -r1.5 head64.S
--- a/arch/parisc/kernel/head64.S	25 Apr 2004 14:50:51 -0000	1.5
+++ b/arch/parisc/kernel/head64.S	1 May 2004 15:11:58 -0000
@@ -88,20 +88,20 @@
 	mtctl		%r4,%cr24	/* Initialize kernel root pointer */
 	mtctl		%r4,%cr25	/* Initialize user root pointer */
 
-	std             %r3,((__PAGE_OFFSET >> PGDIR_SHIFT)*8)(%r4)
+	std             %r3,ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4)
 
 	ldo		_PAGE_TABLE(%r1),%r3
-	std             %r3,(ASM_PMD_ENTRY * 8) (%r5)
+	std             %r3,(ASM_PMD_ENTRY * ASM_PMD_ENTRY_SIZE) (%r5)
 	ldo		0x1000(%r3),%r3
-	std             %r3,((ASM_PMD_ENTRY + 1)*8)(%r5)
+	std             %r3,((ASM_PMD_ENTRY + 1)*ASM_PMD_ENTRY_SIZE)(%r5)
 	ldo		0x1000(%r3),%r3
-	std             %r3,((ASM_PMD_ENTRY + 2)*8)(%r5)
+	std             %r3,((ASM_PMD_ENTRY + 2)*ASM_PMD_ENTRY_SIZE)(%r5)
 	ldo		0x1000(%r3),%r3
-	std             %r3,((ASM_PMD_ENTRY + 3)*8)(%r5)
+	std             %r3,((ASM_PMD_ENTRY + 3)*ASM_PMD_ENTRY_SIZE)(%r5)
 
 	ldo		_PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
 $pgt_fill_loop:
-	std,ma		%r3,8(%r1)
+	std,ma		%r3,ASM_PTE_ENTRY_SIZE(%r1)
 	ldo		0x1000(%r3),%r3
 	bb,>=		%r3,8,$pgt_fill_loop
 	nop
Index: arch/parisc/kernel/init_task.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/init_task.c,v
retrieving revision 1.4
diff -u -r1.4 init_task.c
--- a/arch/parisc/kernel/init_task.c	30 Apr 2004 16:20:36 -0000	1.4
+++ b/arch/parisc/kernel/init_task.c	1 May 2004 15:11:58 -0000
@@ -54,9 +54,9 @@
 
 pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((aligned(PAGE_SIZE<<PGD_ORDER))) = { {0}, };
 #ifdef __LP64__
-unsigned long pmd0[PTRS_PER_PMD] __attribute__ ((aligned(4096))) = { 0, };
+pmd_t pmd0[PTRS_PER_PMD] __attribute__ ((aligned(4096))) = { {0}, };
 #endif
-unsigned long pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((aligned(4096))) = { 0, };
+pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((aligned(4096))) = { {0}, };
 
 /*
  * Initial task structure.
Index: arch/parisc/mm/init.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/mm/init.c,v
retrieving revision 1.4
diff -u -r1.4 init.c
--- a/arch/parisc/mm/init.c	25 Apr 2004 14:50:51 -0000	1.4
+++ b/arch/parisc/mm/init.c	1 May 2004 15:11:59 -0000
@@ -550,7 +550,7 @@
 		 */
 
 		if (!pmd) {
-			pmd = (pmd_t *) alloc_bootmem_low_pages_node(NODE_DATA(0),PAGE_SIZE);
+			pmd = (pmd_t *) alloc_bootmem_low_pages_node(NODE_DATA(0),PAGE_SIZE << PMD_ORDER);
 			pmd = (pmd_t *) __pa(pmd);
 		}
 
Index: include/asm-parisc/pgtable.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pgtable.h,v
retrieving revision 1.6
diff -u -r1.6 pgtable.h
--- a/include/asm-parisc/pgtable.h	30 Apr 2004 16:20:36 -0000	1.6
+++ b/include/asm-parisc/pgtable.h	1 May 2004 15:12:18 -0000
@@ -225,7 +225,7 @@
 
 /* initial page tables for 0-8MB for kernel */
 
-extern unsigned long pg0[];
+extern pte_t pg0[];
 
 /* zero page used for uninitialized stuff */
 



From - Thu Nov 08 21:32:00 2018
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] hppa glibc status 2004-05-01
Date: Sat, 1 May 2004 14:01:43 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:21583


parisc-linux,

If you are building glibc for something other than debian, and you
follow upstream closely (looks at gentoo folks), the you should only see
the following set of failures (TIMEOUTFACTOR set appropriately for slow
tests):

make[2]: *** [/build-hppa/math/test-float.out] Error 1
make[2]: *** [/build-hppa/math/test-double.out] Error 1
make[2]: *** [/build-hppa/math/test-ifloat.out] Error 1
make[1]: *** [math/tests] Error 2
make[2]: *** [/build-hppa/stdlib/tst-strtod.out] Error 1
make[2]: *** [/build-hppa/stdlib/bug-strtod.out] Error 1
make[1]: *** [stdlib/tests] Error 2
make[2]: [/build-hppa/posix/annexc.out] Error 1 (ignored)
make: *** [check] Error 2

All related to our missing long-double implementation.

http://parisc-linux.org/~carlos/glibc-hppa-patches-2004-05-01.tar.gz

I'm working partly on a 64-bit userspace, no word on that yet though,
I'm reworking the directory structures, and it's going to be like a
million patches that I have to breakup and write Changelogs. First step
would be to create the configure chagnes, and move the directories, and
get back a 32-bit build that works.

c.



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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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On Sat, 2004-05-01 at 15:03, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/05/01 14:03:11
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: asm-offsets.c entry.S head64.S 
> 	include/asm-parisc: page.h pgalloc.h pgtable.h 
> 
> Log message:
> Increase the maximum physical and virtual space available to
> the 64 bit kernel from 512GB to 8TB
> 
> As jsm pointed out, we could do a depd,z on the pgd and pmd entries
> instead to compress our unused bits in the flags.  However, for the
> moment, I elected to allocate the pte and pmd in ZONE_DMA instead.

===== arch/parisc/kernel/asm-offsets.c 1.8 vs edited =====
--- 1.8/arch/parisc/kernel/asm-offsets.c	Sat May  1 05:20:09 2004
+++ edited/arch/parisc/kernel/asm-offsets.c	Sat May  1 12:50:25 2004
@@ -282,8 +282,8 @@
 	DEFINE(ASM_BITS_PER_PGD, BITS_PER_PGD);
 	DEFINE(ASM_BITS_PER_PMD, BITS_PER_PMD);
 	DEFINE(ASM_BITS_PER_PTE, BITS_PER_PTE);
-	DEFINE(ASM_PMD_ENTRY, ((__PAGE_OFFSET & PMD_MASK) >> PMD_SHIFT));
-	DEFINE(ASM_PGD_ENTRY, __PAGE_OFFSET >> PGDIR_SHIFT);
+	DEFINE(ASM_PMD_ENTRY, ((PAGE_OFFSET & PMD_MASK) >> PMD_SHIFT));
+	DEFINE(ASM_PGD_ENTRY, PAGE_OFFSET >> PGDIR_SHIFT);
 	DEFINE(ASM_PGD_ENTRY_SIZE, PGD_ENTRY_SIZE);
 	DEFINE(ASM_PMD_ENTRY_SIZE, PMD_ENTRY_SIZE);
 	DEFINE(ASM_PTE_ENTRY_SIZE, PTE_ENTRY_SIZE);
===== arch/parisc/kernel/entry.S 1.19 vs edited =====
--- 1.19/arch/parisc/kernel/entry.S	Sat May  1 05:20:09 2004
+++ edited/arch/parisc/kernel/entry.S	Sat May  1 14:58:00 2004
@@ -453,7 +453,10 @@
 	.endm
 
 	/* Look up a PTE in a 2-Level scheme (faulting at each
-	 * level if the entry isn't present */
+	 * level if the entry isn't present 
+	 *
+	 * NOTE: we use ldw even for LP64 because our pte
+	 * and pmd are allocated <4GB */
 	.macro		L2_ptep	pmd,pte,index,va,fault
 #if PT_NLEVELS == 3
 	EXTR		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
@@ -462,7 +465,7 @@
 #endif
 	DEP		%r0,31,PAGE_SHIFT,\pmd	/* clear offset */
 	copy		%r0,\pte
-	LDREG,s		\index(\pmd),\pmd
+	ldw,s		\index(\pmd),\pmd
 	EXTR		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
 	bb,>=,n		\pmd,_PAGE_PRESENT_BIT,\fault
 	DEP		%r0,31,PAGE_SHIFT,\pmd	/* clear offset */
@@ -475,7 +478,7 @@
 	.macro		L3_ptep pgd,pte,index,va,fault
 	extrd,u		\va,63-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 	copy		%r0,\pte
-	ldd,s		\index(\pgd),\pgd
+	ldw,s		\index(\pgd),\pgd
 	bb,>=,n		\pgd,_PAGE_PRESENT_BIT,\fault
 	L2_ptep		\pgd,\pte,\index,\va,\fault
 	.endm
===== arch/parisc/kernel/head64.S 1.7 vs edited =====
--- 1.7/arch/parisc/kernel/head64.S	Sat May  1 05:20:09 2004
+++ edited/arch/parisc/kernel/head64.S	Sat May  1 12:52:13 2004
@@ -88,16 +88,16 @@
 	mtctl		%r4,%cr24	/* Initialize kernel root pointer */
 	mtctl		%r4,%cr25	/* Initialize user root pointer */
 
-	std             %r3,ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4)
+	stw             %r3,ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4)
 
 	ldo		_PAGE_TABLE(%r1),%r3
-	std             %r3,(ASM_PMD_ENTRY * ASM_PMD_ENTRY_SIZE) (%r5)
+	stw             %r3,(ASM_PMD_ENTRY * ASM_PMD_ENTRY_SIZE) (%r5)
 	ldo		0x1000(%r3),%r3
-	std             %r3,((ASM_PMD_ENTRY + 1)*ASM_PMD_ENTRY_SIZE)(%r5)
+	stw             %r3,((ASM_PMD_ENTRY + 1)*ASM_PMD_ENTRY_SIZE)(%r5)
 	ldo		0x1000(%r3),%r3
-	std             %r3,((ASM_PMD_ENTRY + 2)*ASM_PMD_ENTRY_SIZE)(%r5)
+	stw             %r3,((ASM_PMD_ENTRY + 2)*ASM_PMD_ENTRY_SIZE)(%r5)
 	ldo		0x1000(%r3),%r3
-	std             %r3,((ASM_PMD_ENTRY + 3)*ASM_PMD_ENTRY_SIZE)(%r5)
+	stw             %r3,((ASM_PMD_ENTRY + 3)*ASM_PMD_ENTRY_SIZE)(%r5)
 
 	ldo		_PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
 $pgt_fill_loop:
===== include/asm-parisc/page.h 1.8 vs edited =====
--- 1.8/include/asm-parisc/page.h	Fri Apr 30 05:40:20 2004
+++ edited/include/asm-parisc/page.h	Sat May  1 14:53:09 2004
@@ -40,8 +40,10 @@
  * These are used to make use of C type-checking..
  */
 typedef struct { unsigned long pte; } pte_t;
-typedef struct { unsigned long pmd; } pmd_t;
-typedef struct { unsigned long pgd; } pgd_t;
+/* NOTE: even on 64 bits, these entries are __u32 because we allocate
+ * the pmd and pgd in ZONE_DMA (i.e. under 4GB) */
+typedef struct { __u32 pmd; } pmd_t;
+typedef struct { __u32 pgd; } pgd_t;
 typedef struct { unsigned long pgprot; } pgprot_t;
 
 #define pte_val(x)	((x).pte)
@@ -89,8 +91,8 @@
  */
 #ifdef __LP64__
 #define BITS_PER_PTE_ENTRY	3
-#define BITS_PER_PMD_ENTRY	3
-#define BITS_PER_PGD_ENTRY	3
+#define BITS_PER_PMD_ENTRY	2
+#define BITS_PER_PGD_ENTRY	2
 #else
 #define BITS_PER_PTE_ENTRY	2
 #define BITS_PER_PMD_ENTRY	2
===== include/asm-parisc/pgalloc.h 1.10 vs edited =====
--- 1.10/include/asm-parisc/pgalloc.h	Fri Apr 30 05:40:20 2004
+++ edited/include/asm-parisc/pgalloc.h	Sat May  1 14:54:36 2004
@@ -30,12 +30,14 @@
 
 static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
 {
-	pgd_val(*pgd) = _PAGE_TABLE + __pa((unsigned long)pmd);
+	pgd_val(*pgd) = _PAGE_TABLE + (__u32)__pa((unsigned long)pmd);
 }
 
+/* NOTE: pmd must be in ZONE_DMA (<4GB) so the pgd pointer can be
+ * housed in 32 bits */
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
+	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT|GFP_DMA,
 					       PMD_ORDER);
 	if (pmd)
 		memset(pmd, 0, PAGE_SIZE<<PMD_ORDER);
@@ -65,16 +67,18 @@
 static inline void
 pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
 {
-	pmd_val(*pmd) = _PAGE_TABLE + __pa((unsigned long)pte);
+	pmd_val(*pmd) = _PAGE_TABLE + (__u32)__pa((unsigned long)pte);
 }
 
 #define pmd_populate(mm, pmd, pte_page) \
 	pmd_populate_kernel(mm, pmd, page_address(pte_page))
 
+/* NOTE: pte must be in ZONE_DMA (<4GB) so that the pmd pointer
+ * can be housed in 32 bits */
 static inline struct page *
 pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-	struct page *page = alloc_page(GFP_KERNEL|__GFP_REPEAT);
+	struct page *page = alloc_page(GFP_KERNEL|__GFP_REPEAT|GFP_DMA);
 	if (likely(page != NULL))
 		clear_page(page_address(page));
 	return page;
@@ -83,7 +87,7 @@
 static inline pte_t *
 pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 {
-	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT);
+	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|GFP_DMA);
 	if (likely(pte != NULL))
 		clear_page(pte);
 	return pte;
===== include/asm-parisc/pgtable.h 1.19 vs edited =====
--- 1.19/include/asm-parisc/pgtable.h	Sat May  1 05:20:20 2004
+++ edited/include/asm-parisc/pgtable.h	Sat May  1 13:00:07 2004
@@ -43,9 +43,9 @@
 #define pte_ERROR(e) \
 	printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
 #define pmd_ERROR(e) \
-	printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pmd_val(e))
+	printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, (unsigned long)pmd_val(e))
 #define pgd_ERROR(e) \
-	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
+	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e))
 
  /* Note: If you change ISTACK_SIZE, you need to change the corresponding
   * values in vmlinux.lds and vmlinux64.lds (init_istack section). Also,
@@ -65,8 +65,8 @@
 #ifdef __LP64__
 #define PT_NLEVELS	3
 #define PT_INITIAL	4 /* Number of initial page tables */
-#define PGD_ORDER	0 /* Number of pages per pgd */
-#define PMD_ORDER	0 /* Number of pages per pmd */
+#define PGD_ORDER	1 /* Number of pages per pgd */
+#define PMD_ORDER	1 /* Number of pages per pmd */
 #else
 #define PT_NLEVELS	2
 #define PT_INITIAL	2 /* Number of initial page tables */



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Subject: [parisc-linux] Changing hppa default on panic to "reboot after 180
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parisc-linux,

I do a lot of my work remotely on older parisc boxes, and I usually slam
the kernel into a panic. Previously I had my entire cluster of 32+ boxes
running, so I could crash 32 times before having to go into the office.
Lately I've been a little more power conservative.

I remember having lots more fun on my PowerPC box because it would
reboot after 180 seconds after a panic.

Would anyone be opposed to adding 'panic_timeout = 180' in our
arch/parisc/kernel/setup.c:setup_arch()? :)

c.



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Subject: Re: [parisc-linux] Changing hppa default on panic to "reboot after
	180 seconds"?
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On Sat, May 01, 2004 at 06:33:43PM -0400, Carlos O'Donell wrote:
> 
> parisc-linux,
> 
> I do a lot of my work remotely on older parisc boxes, and I usually slam
> the kernel into a panic. Previously I had my entire cluster of 32+ boxes
> running, so I could crash 32 times before having to go into the office.
> Lately I've been a little more power conservative.
> 
> I remember having lots more fun on my PowerPC box because it would
> reboot after 180 seconds after a panic.
> 
> Would anyone be opposed to adding 'panic_timeout = 180' in our
> arch/parisc/kernel/setup.c:setup_arch()? :)

Ignore this please... I missed the __setup("panic=", panic_setup) line.

c.



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Subject: Re: [parisc-linux] Changing hppa default on panic to "reboot after
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On Sat, May 01, 2004 at 06:45:54PM -0400, Carlos O'Donell wrote:
> On Sat, May 01, 2004 at 06:33:43PM -0400, Carlos O'Donell wrote:
> > 
> > parisc-linux,
> > 
> > I do a lot of my work remotely on older parisc boxes, and I usually slam
> > the kernel into a panic. Previously I had my entire cluster of 32+ boxes
> > running, so I could crash 32 times before having to go into the office.
> > Lately I've been a little more power conservative.
> > 
> > I remember having lots more fun on my PowerPC box because it would
> > reboot after 180 seconds after a panic.
> > 
> > Would anyone be opposed to adding 'panic_timeout = 180' in our
> > arch/parisc/kernel/setup.c:setup_arch()? :)
> 
> Ignore this please... I missed the __setup("panic=", panic_setup) line.

So how about this hookup?

Index: arch/parisc/kernel/traps.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/traps.c,v
retrieving revision 1.13
diff -u -p -r1.13 traps.c
--- a/arch/parisc/kernel/traps.c	28 Apr 2004 19:12:10 -0000	1.13
+++ b/arch/parisc/kernel/traps.c	1 May 2004 22:54:34 -0000
@@ -404,9 +404,9 @@ void transfer_pim_to_trap_frame(struct p
 
 
 /*
- * This routine handles page faults.  It determines the address,
- * and the problem, and then passes it off to one of the appropriate
- * routines.
+ * This routine is called as a last resort when everything else
+ * has gone clearly wrong. We get called for faults in kernel space,
+ * and HPMC's.
  */
 void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long offset)
 {
@@ -452,9 +452,8 @@ void parisc_terminate(char *msg, struct 
 	 * system will shut down immediately right here. */
 	pdc_soft_power_button(0);
 	
-	/* Gutter the processor! */
-	for(;;)
-	    ;
+	/* Call kernel panic() so reboot timeouts work properly */
+	panic(msg);
 }
 
 void handle_interruption(int code, struct pt_regs *regs)


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Subject: Re: [parisc-linux] Changing hppa default on panic to "reboot after
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On Sat, May 01, 2004 at 06:55:08PM -0400, Carlos O'Donell wrote:
> So how about this hookup?
> 
> @@ -452,9 +452,8 @@ void parisc_terminate(char *msg, struct 
>  	 * system will shut down immediately right here. */
>  	pdc_soft_power_button(0);
>  	
> -	/* Gutter the processor! */
> -	for(;;)
> -	    ;
> +	/* Call kernel panic() so reboot timeouts work properly */
> +	panic(msg);
>  }

We already output the msg; doing this would output it twice ...

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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Subject: [parisc-linux] Re: Bug#219458: debian hppa touch fails to set atime
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reassign 219458 coreutils
thanks

At Sun, 28 Dec 2003 20:58:00 -0500,
Carlos O'Donell wrote:
> I suggest moving this to coreutils and have them rebuild?

Thanks Carlos, I reassign it to coreutils.  Coreutils maintainer,
please look at this.

Regards,
-- gotom


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: RE: [parisc-linux] hppa glibc status 2004-05-01
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To: "Carlos O'Donell" <carlos@baldric.uwo.ca>,
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Xref: news.gmane.org gmane.linux.ports.parisc:21590

Hello Carlos,

Just finished the make -k check of the today cvs co (ie 20040503) and no
more Errors then well known ones :)

Thanks a lot,
    Joel
> -- Original Message --
> Date: Sat, 1 May 2004 14:01:43 -0400
> From: Carlos O'Donell <carlos@baldric.uwo.ca>
> To: parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] hppa glibc status 2004-05-01
> 
> 
> 
parisc-linux,

If you are building glibc for something other than debian, and you
follow upstream closely (looks at gentoo folks), the you should only see
the following set of failures (TIMEOUTFACTOR set appropriately for slow
tests):

make[2]
>  *** [/build-hppa/math/test-float.out] Error 1
make[2]: *** [/build-hppa/math/test-double.out] Error 1
make[2]: *** [/build-hppa/math/test-ifloat.out] Error 1
make[1]: *** [math/tests] Error 2
make[2]: *** [/build-hppa/stdlib/tst-strtod.out] Error 
> 
make[2]: *** [/build-hppa/stdlib/bug-strtod.out] Error 1
make[1]: *** [stdlib/tests] Error 2
make[2]: [/build-hppa/posix/annexc.out] Error 1 (ignored)
make: *** [check] Error 2

All related to our missing long-double implementation.

http://pa
> isc-linux.org/~carlos/glibc-hppa-patches-2004-05-01.tar.gz

I'm working partly on a 64-bit userspace, no word on that yet though,
I'm reworking the directory structures, and it's going to be like a
million patches that I have to breakup and write C
> angelogs. First step
would be to create the configure chagnes, and move the directories, and
get back a 32-bit build that works.

c.

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parisc-linux mailing list
parisc-linux@lists.parisc-linux.org

> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From - Thu Nov 08 21:32:00 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: RE: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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Xref: news.gmane.org gmane.linux.ports.parisc:21591

> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: asm-offsets.c entry.S head64.S 
> 	i
> clude/asm-parisc: page.h pgalloc.h pgtable.h 
> 
> Log message:
> Increase the maximum physical and virtual space available to
> the 64 bit kernel from 512GB to 8TB
> 

Sincerely nice job but how will it permit me to access at least to the only
all 4GB of the N4k I test when setup_bootmem() limits actually the usage
to the first 2Gb?

For remind:
 arch/parisc/mm/init.c
static void __init setup_bootmem(void)
{
[snip]
        /*
         * Throw out ranges that are too far apart (controlled by
         * MAX_GAP). If CONFIG_DISCONTIGMEM wasn't implemented so
         * poorly, we would recommend enabling that option, but,
         * until it is fixed, this is the best way to go.
         */

        printk("npmem_ranges = %d.(line 171)\n", npmem_ranges);
        for (i = 1; i < npmem_ranges; i++) {
              printk("pmem_ranges[%d].start_pfn = %ld.\n", i-1, pmem_ranges[i-1].pages);
                printk("pmem_ranges[%d].pages = %ld.\n", i-1, pmem_ranges[i-1].pages);
                printk("pmem_ranges[%d].start_pfn = %ld.\n", i, pmem_ranges[i].pages);
[snip]
           
And actual results would be:
<==== return by setup_bootmem() ====>
pmem_ranges[0].start_pfn = 0.
pmem_ranges[0].pages = 524288.
pmem_ranges[1].start_pfn = 1572864.

so 1572864-524288-0=1048576 greater then MAX_GAP = 262144.

I also investigate the choice of using CONFIG_DISCONTIGMEM but as far as
I understand this option is foreseen when each processor has its own ram
and can/want access the ram of the others (as on sun 6800): not the N4k case
where all ram is shared between all processor?

Thanks again for your attention,
   Joel


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From: kyle@mcmartin.ca (Kyle McMartin)
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willy,

With cvs head, unless the following patch is applied, the compile bombs
out in at least fs/xfs/support/debug.c, as that file uses __u32 in
several places without having included types.h.

Please apply,

Index: include/asm-parisc/page.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/page.h,v
retrieving revision 1.6
diff -u -r1.6 page.h
--- a/include/asm-parisc/page.h	1 May 2004 20:03:11 -0000	1.6
+++ b/include/asm-parisc/page.h	2 May 2004 16:05:11 -0000
@@ -11,6 +11,7 @@
 #ifndef __ASSEMBLY__
 
 #include <asm/cache.h>
+#include <asm/types.h>
 
 #define clear_page(page)	memset((void *)(page), 0, PAGE_SIZE)
 #define copy_page(to,from)      copy_user_page_asm((void *)(to), (void *)(from))

Regards,
-- 
Kyle McMartin


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On Sun, 2004-05-02 at 11:16, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/05/02 10:16:01
> 
> Modified files:
> 	.              : Makefile 
> 	arch/parisc/kernel: asm-offsets.c entry.S init_task.c 
> 	include/asm-parisc: pgalloc.h pgtable.h 
> 
> Log message:
> Implement L2/L3 hybrid page tables for 64 bit kernels

Index: arch/parisc/kernel/asm-offsets.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/asm-offsets.c,v
retrieving revision 1.7
diff -u -r1.7 asm-offsets.c
--- a/arch/parisc/kernel/asm-offsets.c	1 May 2004 20:03:11 -0000	1.7
+++ b/arch/parisc/kernel/asm-offsets.c	2 May 2004 15:53:49 -0000
@@ -282,6 +282,7 @@
 	DEFINE(ASM_BITS_PER_PGD, BITS_PER_PGD);
 	DEFINE(ASM_BITS_PER_PMD, BITS_PER_PMD);
 	DEFINE(ASM_BITS_PER_PTE, BITS_PER_PTE);
+	DEFINE(ASM_PGD_PMD_OFFSET, -(PAGE_SIZE << PGD_ORDER));
 	DEFINE(ASM_PMD_ENTRY, ((PAGE_OFFSET & PMD_MASK) >> PMD_SHIFT));
 	DEFINE(ASM_PGD_ENTRY, PAGE_OFFSET >> PGDIR_SHIFT);
 	DEFINE(ASM_PGD_ENTRY_SIZE, PGD_ENTRY_SIZE);
Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/entry.S,v
retrieving revision 1.13
diff -u -r1.13 entry.S
--- a/arch/parisc/kernel/entry.S	1 May 2004 20:03:11 -0000	1.13
+++ b/arch/parisc/kernel/entry.S	2 May 2004 15:53:51 -0000
@@ -474,11 +474,24 @@
 	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
 	.endm
 
-	/* Look up PTE in a 3-Level scheme */
+	/* Look up PTE in a 3-Level scheme.
+	 *
+	 * Here we implement a Hybrid L2/L3 scheme: we allocate the
+	 * first pmd adjacent to the pgd.  This means that we can
+	 * subtract a constant offset to get to it.  The pmd and pgd
+	 * sizes are arranged so that a single pmd covers 4GB (giving
+	 * a full LP64 process access to 8TB) so our lookups are
+	 * effectively L2 for the first 4GB of the kernel (i.e. for
+	 * all ILP32 processes and all the kernel for machines with
+	 * under 4GB of memory) */
 	.macro		L3_ptep pgd,pte,index,va,fault
 	extrd,u		\va,63-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 	copy		%r0,\pte
+	extrd,u,*=	\va,31,32,%r0
 	ldw,s		\index(\pgd),\pgd
+	extrd,u,*<>	\va,31,32,%r0
+	ldo		ASM_PGD_PMD_OFFSET(\pgd),\pgd
+	extrd,u,*=	\va,31,32,%r0
 	bb,>=,n		\pgd,_PAGE_PRESENT_BIT,\fault
 	L2_ptep		\pgd,\pte,\index,\va,\fault
 	.endm
Index: arch/parisc/kernel/init_task.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/init_task.c,v
retrieving revision 1.5
diff -u -r1.5 init_task.c
--- a/arch/parisc/kernel/init_task.c	1 May 2004 16:05:55 -0000	1.5
+++ b/arch/parisc/kernel/init_task.c	2 May 2004 15:53:51 -0000
@@ -52,11 +52,13 @@
 	__attribute__((aligned(128))) __attribute__((__section__(".data.init_task"))) =
 		{ INIT_THREAD_INFO(init_task) };
 
-pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((aligned(PAGE_SIZE<<PGD_ORDER))) = { {0}, };
 #ifdef __LP64__
-pmd_t pmd0[PTRS_PER_PMD] __attribute__ ((aligned(4096))) = { {0}, };
+/* NOTE: This layout exactly conforms to the hybrid L2/L3 page table layout
+ * with the first pmd adjacent to the pgd and below it */
+pmd_t pmd0[PTRS_PER_PMD] __attribute__ ((aligned(PAGE_SIZE))) = { {0}, };
 #endif
-pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((aligned(4096))) = { {0}, };
+pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((aligned(PAGE_SIZE))) = { {0}, };
+pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((aligned(PAGE_SIZE))) = { {0}, };
 
 /*
  * Initial task structure.
Index: include/asm-parisc/pgalloc.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pgalloc.h,v
retrieving revision 1.4
diff -u -r1.4 pgalloc.h
--- a/include/asm-parisc/pgalloc.h	1 May 2004 20:03:11 -0000	1.4
+++ b/include/asm-parisc/pgalloc.h	2 May 2004 15:54:10 -0000
@@ -10,18 +10,44 @@
 #include <asm/pgtable.h>
 #include <asm/cache.h>
 
+/* Allocate the top level pgd (page directory)
+ *
+ * Here (for 64 bit kernels) we implement a Hybrid L2/L3 scheme: we
+ * allocate the first pmd adjacent to the pgd.  This means that we can
+ * subtract a constant offset to get to it.  The pmd and pgd sizes are
+ * arranged so that a single pmd covers 4GB (giving a full LP64
+ * process access to 8TB) so our lookups are effectively L2 for the
+ * first 4GB of the kernel (i.e. for all ILP32 processes and all the
+ * kernel for machines with under 4GB of memory) */
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-	pgd_t *pgd = (pgd_t *)__get_free_pages(GFP_KERNEL, PGD_ORDER);
-
-	if (likely(pgd != NULL))
-		memset(pgd, 0, PAGE_SIZE<<PGD_ORDER);
-	return pgd;
+	pgd_t *pgd = (pgd_t *)__get_free_pages(GFP_KERNEL|GFP_DMA,
+					       PGD_ALLOC_ORDER);
+	pgd_t *actual_pgd = pgd;
+
+	if (likely(pgd != NULL)) {
+		memset(pgd, 0, PAGE_SIZE<<PGD_ALLOC_ORDER);
+#ifdef __LP64__
+		actual_pgd += PTRS_PER_PGD;
+		/* Populate first pmd with allocated memory.  We mark it
+		 * with _PAGE_GATEWAY as a signal to the system that this
+		 * pmd entry may not be cleared. */
+		pgd_val(*actual_pgd) = (_PAGE_TABLE | _PAGE_GATEWAY) + 
+			(__u32)__pa((unsigned long)pgd);
+		/* The first pmd entry also is marked with _PAGE_GATEWAY as
+		 * a signal that this pmd may not be freed */
+		pgd_val(*pgd) = _PAGE_GATEWAY;
+#endif
+	}
+	return actual_pgd;
 }
 
 static inline void pgd_free(pgd_t *pgd)
 {
-	free_pages((unsigned long)pgd, PGD_ORDER);
+#ifdef __LP64__
+	pgd -= PTRS_PER_PGD;
+#endif
+	free_pages((unsigned long)pgd, PGD_ALLOC_ORDER);
 }
 
 #if PT_NLEVELS == 3
@@ -46,6 +72,12 @@
 
 static inline void pmd_free(pmd_t *pmd)
 {
+#ifdef __LP64__
+	if(pmd_val(*pmd) & _PAGE_GATEWAY)
+		/* This is the permanent pmd attached to the pgd;
+		 * cannot free it */
+		return;
+#endif
 	free_pages((unsigned long)pmd, PMD_ORDER);
 }
 
@@ -67,7 +99,15 @@
 static inline void
 pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
 {
-	pmd_val(*pmd) = _PAGE_TABLE + (__u32)__pa((unsigned long)pte);
+#ifdef __LP64__
+	/* preserve the gateway marker if this is the beginning of
+	 * the permanent pmd */
+	if(pmd_val(*pmd) & _PAGE_GATEWAY)
+		pmd_val(*pmd) = (_PAGE_TABLE | _PAGE_GATEWAY)
+			+ (__u32)__pa((unsigned long)pte);
+	else
+#endif
+		pmd_val(*pmd) = _PAGE_TABLE + (__u32)__pa((unsigned long)pte);
 }
 
 #define pmd_populate(mm, pmd, pte_page) \
Index: include/asm-parisc/pgtable.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pgtable.h,v
retrieving revision 1.8
diff -u -r1.8 pgtable.h
--- a/include/asm-parisc/pgtable.h	1 May 2004 20:03:11 -0000	1.8
+++ b/include/asm-parisc/pgtable.h	2 May 2004 15:54:11 -0000
@@ -67,10 +67,12 @@
 #define PT_INITIAL	4 /* Number of initial page tables */
 #define PGD_ORDER	1 /* Number of pages per pgd */
 #define PMD_ORDER	1 /* Number of pages per pmd */
+#define PGD_ALLOC_ORDER	2 /* first pgd contains pmd */
 #else
 #define PT_NLEVELS	2
 #define PT_INITIAL	2 /* Number of initial page tables */
 #define PGD_ORDER	0 /* Number of pages per pgd */
+#define PGD_ALLOC_ORDER	PGD_ORDER
 #endif
 
 /* Definitions for 3rd level (we use PLD here for Page Lower directory
@@ -242,10 +244,26 @@
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
 #define pte_clear(xp)	do { pte_val(*(xp)) = 0; } while (0)
 
+#ifdef __LP64__
+/* The first entry of the permanent pmd is not there if it contains
+ * the gateway marker */
+#define pmd_none(x)	(!pmd_val(x) || pmd_val(x) == _PAGE_GATEWAY)
+#define pmd_bad(x)	((pmd_val(x) & ~PAGE_MASK) != _PAGE_TABLE && (pmd_val(x) & ~PAGE_MASK) != (_PAGE_TABLE | _PAGE_GATEWAY))
+#else
 #define pmd_none(x)	(!pmd_val(x))
 #define pmd_bad(x)	((pmd_val(x) & ~PAGE_MASK) != _PAGE_TABLE)
+#endif
 #define pmd_present(x)	(pmd_val(x) & _PAGE_PRESENT)
-#define pmd_clear(xp)	do { pmd_val(*(xp)) = 0; } while (0)
+static inline void pmd_clear(pmd_t *pmd) {
+#ifdef __LP64__
+	if(pmd_val(*pmd) & _PAGE_GATEWAY)
+		/* This is the entry pointing to the permanent pmd
+		 * attached to the pgd; cannot clear it */
+		pmd_val(*pmd) = _PAGE_GATEWAY;
+	else
+#endif
+		pmd_val(*pmd) = 0;
+}
 


@@ -255,9 +273,21 @@
 /* For 64 bit we have three level tables */
 
 #define pgd_none(x)     (!pgd_val(x))
+#ifdef __LP64__
+#define pgd_bad(x)      ((pgd_val(x) & ~PAGE_MASK) != _PAGE_TABLE && (pgd_val(x) & ~PAGE_MASK) != (_PAGE_TABLE | _PAGE_GATEWAY))
+#else
 #define pgd_bad(x)      ((pgd_val(x) & ~PAGE_MASK) != _PAGE_TABLE)
+#endif
 #define pgd_present(x)  (pgd_val(x) & _PAGE_PRESENT)
-#define pgd_clear(xp)   do { pgd_val(*(xp)) = 0; } while (0)
+static inline void pgd_clear(pgd_t *pgd) {
+#ifdef __LP64__
+	if(pgd_val(*pgd) & _PAGE_GATEWAY)
+		/* This is the permanent pmd attached to the pgd; cannot
+		 * free it */
+		return;
+#endif
+	pgd_val(*pgd) = 0;
+}
 #else
 /*
  * The "pgd_xxx()" functions here are trivial for a folded two-level



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From: Ryan Bradetich <ryan_bradetich@hp.com>
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Subject: [parisc-linux] Removal of the CONFIG_PDC_NARROW option.
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Hello All,

I promised jejb a long time ago to get rid of the CONFIG_PDC_NARROW
config option and replace it with a run-time check.  This will allow
64-bit kernels to run on any 64-bit capable system and does not need to
be compiled special to run with narrow firmware.  I finally finished
this task and have committed it to CVS head.

I have attached the patch for review and I am posting to both lists
since some users might use the option and wonder about it when this
option is no longer present.

I have tested this patch on C200 (narrow firmware), K460 (wide
firmware), and A500 (wide firmware).

Thanks,

- Ryan



--=-6F4BNpa4embhfpzG3xTy
Content-Disposition: attachment; filename=64bit-runtime-check.patch
Content-Type: text/x-patch; name=64bit-runtime-check.patch; charset=us-ascii
Content-Transfer-Encoding: 7bit

Index: Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/Makefile,v
retrieving revision 1.186
diff -u -p -r1.186 Makefile
--- a/Makefile	2 May 2004 16:16:00 -0000	1.186
+++ b/Makefile	4 May 2004 01:14:40 -0000
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 6
-EXTRAVERSION =-rc3-pa6
+EXTRAVERSION =-rc3-pa7
 NAME=Zonked Quokka
 
 # *DOCUMENTATION*
Index: arch/parisc/Kconfig
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/Kconfig,v
retrieving revision 1.17
diff -u -p -r1.17 Kconfig
--- a/arch/parisc/Kconfig	26 Apr 2004 21:00:41 -0000	1.17
+++ b/arch/parisc/Kconfig	4 May 2004 01:14:42 -0000
@@ -117,18 +117,6 @@ config PARISC64
 config 64BIT
 	def_bool PARISC64
 
-config PDC_NARROW
-	bool "32-bit firmware"
-	depends on PARISC64
-	help
-	  This option will enable owners of C160, C180, C200, C240, C360, J280,
-	  J282, J2240 and some D/K/R class to run a 64bit kernel with their
-	  32bit PDC firmware.
-	
-	  Nobody should try this option unless they know what they are doing.
-	
-	  If unsure, say N.
-
 config SMP
 	bool "Symmetric multi-processing support"
 	---help---
Index: arch/parisc/kernel/firmware.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/firmware.c,v
retrieving revision 1.6
diff -u -p -r1.6 firmware.c
--- a/arch/parisc/kernel/firmware.c	14 Apr 2004 06:18:39 -0000	1.6
+++ b/arch/parisc/kernel/firmware.c	4 May 2004 01:14:42 -0000
@@ -10,6 +10,7 @@
  * Copyright 1999 SuSE GmbH Nuernberg (Philipp Rumpf, prumpf@tux.org)
  * Copyright 1999 The Puffin Group, (Alex deVries, David Kennedy)
  * Copyright 2003 Grant Grundler <grundler parisc-linux org>
+ * Copyright 2003,2004 Ryan Bradetich <rbrad@parisc-linux.org>
  *
  *    This program is free software; you can redistribute it and/or modify
  *    it under the terms of the GNU General Public License as published by
@@ -71,6 +72,15 @@ static spinlock_t pdc_lock = SPIN_LOCK_U
 static unsigned long pdc_result[32] __attribute__ ((aligned (8)));
 static unsigned long pdc_result2[32] __attribute__ ((aligned (8)));
 
+#ifdef __LP64__
+#define WIDE_FIRMWARE 0x1
+#define NARROW_FIRMWARE 0x2
+
+/* Firmware needs to be initially set to narrow to determine the 
+ * actual firmware width. */
+int parisc_narrow_firmware = 1;
+#endif
+
 /* on all currently-supported platforms, IODC I/O calls are always
  * 32-bit calls, and MEM_PDC calls are always the same width as the OS.
  * This means Cxxx boxes can't run wide kernels right now. -PB
@@ -87,11 +97,11 @@ long real64_call(unsigned long function,
 #endif
 long real32_call(unsigned long function, ...);
 
-#if defined(__LP64__) && ! defined(CONFIG_PDC_NARROW)
-#define MEM_PDC (unsigned long)(PAGE0->mem_pdc_hi) << 32 | PAGE0->mem_pdc
-#   define mem_pdc_call(args...) real64_call(MEM_PDC, args)
+#ifdef __LP64__
+#   define MEM_PDC (unsigned long)(PAGE0->mem_pdc_hi) << 32 | PAGE0->mem_pdc
+#   define mem_pdc_call(args...) unlikely(parisc_narrow_firmware) ? real32_call(MEM_PDC, args) : real64_call(MEM_PDC, args)
 #else
-#define MEM_PDC (unsigned long)PAGE0->mem_pdc
+#   define MEM_PDC (unsigned long)PAGE0->mem_pdc
 #   define mem_pdc_call(args...) real32_call(MEM_PDC, args)
 #endif
 
@@ -105,12 +115,14 @@ long real32_call(unsigned long function,
  */
 static unsigned long f_extend(unsigned long address)
 {
-#ifdef CONFIG_PDC_NARROW
-	if((address & 0xff000000) == 0xf0000000)
-		return 0xf0f0f0f000000000 | (u32)address;
-
-	if((address & 0xf0000000) == 0xf0000000)
-		return 0xffffffff00000000 | (u32)address;
+#ifdef __LP64__
+	if(unlikely(parisc_narrow_firmware)) {
+		if((address & 0xff000000) == 0xf0000000)
+			return 0xf0f0f0f000000000 | (u32)address;
+
+		if((address & 0xf0000000) == 0xf0000000)
+			return 0xffffffff00000000 | (u32)address;
+	}
 #endif
 	return address;
 }
@@ -125,11 +137,34 @@ static unsigned long f_extend(unsigned l
  */
 static void convert_to_wide(unsigned long *addr)
 {
-#ifdef CONFIG_PDC_NARROW
+#ifdef __LP64__
 	int i;
-	unsigned *p = (unsigned int *)addr;
-	for(i = 31; i >= 0; --i)
-		addr[i] = p[i];
+	unsigned int *p = (unsigned int *)addr;
+
+	if(unlikely(parisc_narrow_firmware)) {
+		for(i = 31; i >= 0; --i)
+			addr[i] = p[i];
+	}
+#endif
+}
+
+/**
+ * set_firmware_width - Determine if the firmware is wide or narrow.
+ * 
+ * This function must be called before any pdc_* function that uses the convert_to_wide
+ * function.
+ */
+void __init set_firmware_width(void)
+{
+#ifdef __LP64__
+	int retval;
+
+        spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES, __pa(pdc_result), 0);
+	convert_to_wide(pdc_result);
+	if(pdc_result[0] != NARROW_FIRMWARE)
+		parisc_narrow_firmware = 0;
+        spin_unlock_irq(&pdc_lock);
 #endif
 }
 
Index: arch/parisc/kernel/head64.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head64.S,v
retrieving revision 1.7
diff -u -p -r1.7 head64.S
--- a/arch/parisc/kernel/head64.S	1 May 2004 20:03:11 -0000	1.7
+++ b/arch/parisc/kernel/head64.S	4 May 2004 01:14:42 -0000
@@ -165,7 +165,6 @@ common_stext:
 	tophys_r1	%r10
 	std		%r11,  TASK_PT_GR11(%r10)
 
-#ifndef CONFIG_PDC_NARROW
 	/* Switch to wide mode; Superdome doesn't support narrow PDC
 	** calls.
 	*/
@@ -175,7 +174,6 @@ common_stext:
 	bv		(%rp)
 	ssm		PSW_SM_W,%r0
 2:
-#endif /* CONFIG_PDC_NARROW */
 
 	/* Set Wide mode as the "Default" (eg for traps)
 	** First trap occurs *right* after (or part of) rfi for slave CPUs.
Index: arch/parisc/kernel/processor.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/processor.c,v
retrieving revision 1.3
diff -u -p -r1.3 processor.c
--- a/arch/parisc/kernel/processor.c	18 Oct 2003 01:01:12 -0000	1.3
+++ b/arch/parisc/kernel/processor.c	4 May 2004 01:14:42 -0000
@@ -276,6 +276,7 @@ int __init init_per_cpu(int cpunum)
 	int ret;
 	struct pdc_coproc_cfg coproc_cfg;
 
+	set_firmware_width();
 	ret = pdc_coproc_cfg(&coproc_cfg);
 
 	if(ret >= 0 && coproc_cfg.ccr_functional) {
Index: arch/parisc/kernel/setup.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/setup.c,v
retrieving revision 1.4
diff -u -p -r1.4 setup.c
--- a/arch/parisc/kernel/setup.c	14 Apr 2004 06:18:39 -0000	1.4
+++ b/arch/parisc/kernel/setup.c	4 May 2004 01:14:42 -0000
@@ -121,8 +121,11 @@ void __init setup_arch(char **cmdline_p)
 
 	pdc_console_init();
 
-#ifdef CONFIG_PDC_NARROW
-	printk(KERN_INFO "Kernel is using PDC in 32-bit mode.\n");
+#ifdef __LP64__
+	extern int parisc_narrow_firmware;
+	if(parisc_narrow_firmware) {
+		printk(KERN_INFO "Kernel is using PDC in 32-bit mode.\n");
+	}
 #endif
 	setup_pdc();
 	setup_cmdline(cmdline_p);
Index: include/asm-parisc/pdc.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pdc.h,v
retrieving revision 1.4
diff -u -p -r1.4 pdc.h
--- a/include/asm-parisc/pdc.h	21 Dec 2003 13:13:10 -0000	1.4
+++ b/include/asm-parisc/pdc.h	4 May 2004 01:14:49 -0000
@@ -949,6 +949,7 @@ int pdc_tod_read(struct pdc_tod *tod);
 int pdc_tod_set(unsigned long sec, unsigned long usec);
 
 #ifdef __LP64__
+void set_firmware_width(void);
 int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr,
 		struct pdc_memory_table *tbl, unsigned long entries);
 #endif

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On Sat, 1 May 2004, Morten Werner Olsen wrote:

> On Wed, Apr 28, 2004 at 09:23:56PM +0300, Martin-=C9ric Racine wrote:
>=20
> > Is any other work required beyond the patch you already submitted to th=
e
> > maintainer?  If so, just how much is needed?  I have some time to spare=
=2E
>=20
> I don't think there is more work than including the already written
> patch to get the package compiling on hppa.
>=20
> The important issue is that I will not include support for hppa if the
> package is not of any use for the hppa users and developers. So please te=
st
> it and see if you find the information that is provided of any interest.

Joel had built and tested it on a B180 and found the results usefull.

I just applied the patch and tested on a 712. Works great. I'm not sure if =
all
the PA-RISC specific hardware gets tested, but at least what I get out of t=
his
patch is already quite usefull to me.  I'd say merge it.

--=20
Martin-=C9ric Racine, ICT Consultant
http://www.pp.fishpool.fi/~q-funk/





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> We already output the msg; doing this would output it twice ...

So... the box is burning and in flames, printing it twice is a double 
reminder of the error?

The first time we print it along with a long string of other items,
followed by a register dump. The second time the kernel prints it just
before it does a proper panic and honours the panic=XX kernel option.

The cleanest fix is to register show_regs on the panic notifiers so it
can get printed after the panic() message. That way we don't have to
print our message, instead panic() prints it for us and then runs the
list of panic notification functions (the pdc chassis lights are
registered here too). Now that sounds like a lot of work for a dying
box...

or

We just print it twice... <- Easy fix ;o)

c.




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Subject: Re: [parisc-linux] hppa glibc status 2004-05-01
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On Mon, May 03, 2004 at 04:28:05PM +0000, Joel Soete wrote:
> Just finished the make -k check of the today cvs co (ie 20040503) and no
> more Errors then well known ones :)
> 
> Thanks a lot,
>     Joel

Thanks for checking!

c.



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Hello all,

There was a thread:: <http://lists.parisc-linux.org/pipermail/parisc-linux/2003-September/021172.html>

which would help me to find the right direction to solve this pb:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2004-April/022968.html>

The only new think I discover became when I reboot a kernel build with gcc-3.0:
[snip]
: arq->state 2
Badness in as_requeue_request at drivers/block/as-iosched.c:1479
Kernel addresses on the stack:
 [<10127830>] printk+0x12c/0x1b0
 [<10107d64>] dump_stack+0x18/0x24
 [<1022b21c>] as_requeue_request+0x64/0x108
 [<102225c0>] elv_requeue_request+0x3c/0x64
 [<102250a8>] blk_insert_request+0x4c/0xf8
 [<1024f418>] scsi_queue_insert+0x6c/0xa0
 [<102642d8>] ncr_wakeup_done+0x90/0xc0
 [<1024b578>] scsi_softirq+0xcc/0x128
 [<1024b498>] scsi_done+0x5c/0x70
 [<1012b504>] __do_softirq+0x60/0xcc
 [<10109428>] do_irq+0xa4/0x160
 [<1010231c>] __scheduling_functions_end_here+0x3c/0x48
 [<10109574>] do_cpu_irq_mask+0x90/0xf0
 [<1010d068>] intr_return+0x0/0x14
 [<102632a4>] ncr_start_next_ccb+0xdc/0x104
 [<10145e6c>] kmem_cache_alloc+0x3c/0x4c
 [<1015d69c>] get_empty_filp+0x64/0x11c
 [<1015bc80>] dentry_open+0x12c/0x1b4
 [<1016f8b0>] locate_fd+0xfc/0x190
 [<10145e64>] kmem_cache_alloc+0x34/0x4c
 [<10140530>] mempool_alloc+0xac/0x184
 [<10225fcc>] generic_make_request+0x15c/0x1fc
 [<101ab458>] __journal_remove_journal_head+0x144/0x1e4
 [<10162b28>] bio_alloc+0x14c/0x1bc
 [<102260e0>] submit_bio+0x74/0x154
 [<10162234>] submit_bh+0x8c/0x16c
 [<10162388>] ll_rw_block+0x74/0x140
 [<101a6fc4>] journal_brelse_array+0x2c/0x44
 [<101a6f04>] journal_commit_transaction+0xfdc/0x1070
 [<101ee0cc>] vsnprintf+0x6a4/0x8cc
 [<101a94ac>] kjournald+0xc8/0x220
 [<1015cb58>] sys_write+0x4c/0x84
 [<10129b34>] do_group_exit+0x84/0xbc
 [<1010a35c>] tracesys_exit+0x0/0x34
 [<1010cc5c>] ret_from_kernel_thread+0x1c/0x24

kernel BUG at include/linux/blkdev.h:562!
Kernel addresses on the stack:
 [<10127830>] printk+0x12c/0x1b0
 [<10107d64>] dump_stack+0x18/0x24
 [<10250630>] scsi_request_fn+0x2b4/0x388
 [<102225c0>] elv_requeue_request+0x3c/0x64
 [<10225110>] blk_insert_request+0xb4/0xf8
 [<1024f418>] scsi_queue_insert+0x6c/0xa0
 [<102642d8>] ncr_wakeup_done+0x90/0xc0
 [<1024b578>] scsi_softirq+0xcc/0x128
 [<1024b498>] scsi_done+0x5c/0x70
 [<1012b504>] __do_softirq+0x60/0xcc
 [<10109428>] do_irq+0xa4/0x160
 [<1010231c>] __scheduling_functions_end_here+0x3c/0x48
 [<10109574>] do_cpu_irq_mask+0x90/0xf0
 [<1010d068>] intr_return+0x0/0x14
 [<102632a4>] ncr_start_next_ccb+0xdc/0x104
 [<10145e6c>] kmem_cache_alloc+0x3c/0x4c
 [<1015d69c>] get_empty_filp+0x64/0x11c
 [<1015bc80>] dentry_open+0x12c/0x1b4
 [<1016f8b0>] locate_fd+0xfc/0x190
 [<10145e64>] kmem_cache_alloc+0x34/0x4c
 [<10140530>] mempool_alloc+0xac/0x184
 [<10225fcc>] generic_make_request+0x15c/0x1fc
 [<101ab458>] __journal_remove_journal_head+0x144/0x1e4
 [<10162b28>] bio_alloc+0x14c/0x1bc
 [<102260e0>] submit_bio+0x74/0x154
 [<10162234>] submit_bh+0x8c/0x16c
 [<10162388>] ll_rw_block+0x74/0x140
 [<101a6fc4>] journal_brelse_array+0x2c/0x44
 [<101a6f04>] journal_commit_transaction+0xfdc/0x1070
 [<101ee0cc>] vsnprintf+0x6a4/0x8cc
 [<101a94ac>] kjournald+0xc8/0x220
 [<1015cb58>] sys_write+0x4c/0x84
 [<10129b34>] do_group_exit+0x84/0xbc
 [<1010a35c>] tracesys_exit+0x0/0x34
 [<1010cc5c>] ret_from_kernel_thread+0x1c/0x24

[snip]

which makes appear ncr_wakeup_done() and ncr_start_next_ccb() but I don't
yet reach to figure out why the work-around which consist of commenting 'parisc_vmerge_max_size
= ...' into ccio-dma.c make the stuff working (that just let parisc_vmerge_max_size
=0 as initialized in gsc.c)

I also try to compare ncr_start_next_ccb with its sister sym_ and discover
that there was a improved way to manage requeing but I don't find how to
manage such changes (new ncr53720 files, a sym53c7xx_2 tree, ...). 

Any idea?

Thanks for yoyr attention,
    Joel

----------------------------------------------------------------------------------------
Tiscali ADSL, 27,50 /mois...pendant 6 mois. 
La meilleure offre du march !
http://reg.tiscali.be/default.asp?lg=fr





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------=_NextPart_000_0016----=_NextPart_000_0016--




From - Thu Nov 08 21:32:01 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] palo-1.4 broken on 32bit ?
Date: Tue, 4 May 2004 21:36:28 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:21601

Hi all,

after apt-get upgrading to palo_1.4_hppa.deb it seems, that palo-1.4 isn't able any longer to boot up a 32bit Linux kernel on a 32bit Machine.
I've run several tests on a B180L, and only after downgrading to palo-1.3 I was able to boot again.

Am I the only one seeing this problem ? 
Anyone maybe has an idea what has been changed ?

Helge


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] source tarballs give "bzip2 (stdin) trailing garbage
	after EOF ignored"
Date: Tue, 4 May 2004 21:41:29 +0200
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Hi all,

today I found the following small glitch with the linux kernel source tarballs available from 
http://cvs.parisc-linux.org/download/linux-2.6
(e.g. http://cvs.parisc-linux.org/download/linux-2.6/linux-2.6.6-rc3-pa7.tar.bz2)

Extracting with "tar xvfj <filename>"  gives:
....
linux-2.6.6-rc3-pa7/.versions
bzip2: (stdin): trailing garbage after EOF ignored

Helge


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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: Re: [parisc-linux] palo-1.4 broken on 32bit ?
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On Tue, 2004-05-04 at 14:36, Helge Deller wrote:
> after apt-get upgrading to palo_1.4_hppa.deb it seems, that palo-1.4 isn't able any longer to boot up a 32bit Linux kernel on a 32bit Machine.
> I've run several tests on a B180L, and only after downgrading to palo-1.3 I was able to boot again.
> 
> Am I the only one seeing this problem ? 
> Anyone maybe has an idea what has been changed ?

Well, it works just fine for me:

redscar:~# palo -v
palo version 1.4 bame@c3k Fri Mar 26 16:18:35 MST 2004
ELF32 executable
Partition Start(MB) End(MB) Id Type
1               1     257   82 swap
2             258     277   f0 Palo
3             278    2045   83 ext2
4            2046    4094   83 ext2
F0 partition start sector 527744 length 41230
do_ra(1, 5, 3, -1, '3/boot/vmlinux initrd=3/boot/initrd.img
root=/dev/sda3 HOME=/ console=ttyS0 console=tty0', 4, -1, 270204928,
21109760)
check_bootloader 213
checksum(0x2f2b0, 36864) = 0x00000000
ipl: addr 270204928 size 36864 entry 0x0
 ko 0x0 ksz 0 k64o 0x0 k64sz 0 rdo 0 rdsz 0
<3/boot/vmlinux initrd=3/boot/initrd.img root=/dev/sda3 HOME=/
console=ttyS0 console=tty0>
check_bootloader 650
checksum(0x262a8, 36864) = 0x00000000
ipl: addr 270204928 size 36864 entry 0x0
 ko 0x101f0000 ksz 3421952 k64o 0x0 k64sz 0 rdo 0 rdsz 0
<3/boot/vmlinux initrd=3/boot/initrd.img root=/dev/sda3 HOME=/
console=ttyS0 console=tty0>
redscar:~# cat /proc/cpuinfo 
processor       : 0
cpu family      : PA-RISC 1.1e
cpu             : PA7300LC (PCX-L2)
cpu MHz         : 180.000000
model           : 9000/778/B180L
model name      : Merlin L2+ 180 (9000/778/B180L)
hversion        : 0x00005040
sversion        : 0x00000481
I-cache         : 64 KB
D-cache         : 64 KB (WB)
ITLB entries    : 96
DTLB entries    : 96 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (8 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 119.60
software id     : 2012752031

However, there have been several reports of intermittent failures with
later versions of palo; if you could actually track the issue down, that
would be greatly appreciated.

The current thought is that it's a command line issue (i.e. embedding a
commmand line >128 characters in palo causes failures).

James




From - Thu Nov 08 21:32:01 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] palo-1.4 broken on 32bit ?
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On Tuesday 04 May 2004 21:46, James Bottomley wrote:
> On Tue, 2004-05-04 at 14:36, Helge Deller wrote:
> > after apt-get upgrading to palo_1.4_hppa.deb it seems, that palo-1.4 isn't able any longer to boot up a 32bit Linux kernel on a 32bit Machine.
> > I've run several tests on a B180L, and only after downgrading to palo-1.3 I was able to boot again.
> > 
> > Am I the only one seeing this problem ? 
> > Anyone maybe has an idea what has been changed ?
> 
> Well, it works just fine for me:
> 
> redscar:~# palo -v
> palo version 1.4 bame@c3k Fri Mar 26 16:18:35 MST 2004
> ELF32 executable
> Partition Start(MB) End(MB) Id Type
> 1               1     257   82 swap
> 2             258     277   f0 Palo
> 3             278    2045   83 ext2
> 4            2046    4094   83 ext2
> F0 partition start sector 527744 length 41230
> do_ra(1, 5, 3, -1, '3/boot/vmlinux initrd=3/boot/initrd.img
> root=/dev/sda3 HOME=/ console=ttyS0 console=tty0', 4, -1, 270204928,
> 21109760)
> check_bootloader 213
> checksum(0x2f2b0, 36864) = 0x00000000
> ipl: addr 270204928 size 36864 entry 0x0
>  ko 0x0 ksz 0 k64o 0x0 k64sz 0 rdo 0 rdsz 0
> <3/boot/vmlinux initrd=3/boot/initrd.img root=/dev/sda3 HOME=/
> console=ttyS0 console=tty0>
> check_bootloader 650
> checksum(0x262a8, 36864) = 0x00000000
> ipl: addr 270204928 size 36864 entry 0x0
>  ko 0x101f0000 ksz 3421952 k64o 0x0 k64sz 0 rdo 0 rdsz 0
> <3/boot/vmlinux initrd=3/boot/initrd.img root=/dev/sda3 HOME=/
> console=ttyS0 console=tty0>
> redscar:~# cat /proc/cpuinfo 
> processor       : 0
> cpu family      : PA-RISC 1.1e
> cpu             : PA7300LC (PCX-L2)
> cpu MHz         : 180.000000
> model           : 9000/778/B180L
> model name      : Merlin L2+ 180 (9000/778/B180L)
> hversion        : 0x00005040
> sversion        : 0x00000481
> I-cache         : 64 KB
> D-cache         : 64 KB (WB)
> ITLB entries    : 96
> DTLB entries    : 96 - shared with ITLB
> BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
> BTLB fix-entr.  : 0 instruction, 0 data (8 combined)
> BTLB var-entr.  : 0 instruction, 0 data (0 combined)
> bogomips        : 119.60
> software id     : 2012752031
> 
> However, there have been several reports of intermittent failures with
> later versions of palo; if you could actually track the issue down, that
> would be greatly appreciated.
> 
> The current thought is that it's a command line issue (i.e. embedding a
> commmand line >128 characters in palo causes failures).

Ok, I will test this tomorrow (the machine is in the office)..

Thanks for the hint,
Helge


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] palo-1.4 broken on 32bit ?
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On Tue, May 04, 2004 at 09:36:28PM +0200, Helge Deller wrote:
> Hi all,
> 
> after apt-get upgrading to palo_1.4_hppa.deb it seems, that palo-1.4 isn't able any longer to boot up a 32bit Linux kernel on a 32bit Machine.
> I've run several tests on a B180L, and only after downgrading to palo-1.3 I was able to boot again.
> 
> Am I the only one seeing this problem ? 

No - I've been seeing it on the c3600 as well.
I haven't tried 64-bit kernels.
And downgrading iplboot to 1.3 also solves it for me too.

palo 1.3 deb is available here in case someone has upgraded:
	http://iou.parisc-linux.org/~grundler/palo/palo_1.3_hppa.deb

thanks to paul bame for keeping those around.

> Anyone maybe has an idea what has been changed ?

nope...have to look at palo since it doesn't matter which
kernel I attempt to boot, it doesn't work.

Note that I tried to build palo v1.2 and that failed the same way.
So it's possibly a compiler issue with real-mode code.
(Not that the compiler knows the difference...)

grant


From - Thu Nov 08 21:32:01 2018
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From: Richard Hirst <rhirst@linuxcare.com>
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Subject: Re: [parisc-linux] palo-1.4 broken on 32bit ?
Date: Tue, 4 May 2004 21:33:30 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:21606

On Tue, May 04, 2004 at 02:11:22PM -0600, Grant Grundler wrote:
> On Tue, May 04, 2004 at 09:36:28PM +0200, Helge Deller wrote:
> > Hi all,
> > 
> > after apt-get upgrading to palo_1.4_hppa.deb it seems, that palo-1.4 isn't able any longer to boot up a 32bit Linux kernel on a 32bit Machine.
> > I've run several tests on a B180L, and only after downgrading to palo-1.3 I was able to boot again.
> > 
> > Am I the only one seeing this problem ? 
> 
> No - I've been seeing it on the c3600 as well.
> I haven't tried 64-bit kernels.
> And downgrading iplboot to 1.3 also solves it for me too.
> 
> palo 1.3 deb is available here in case someone has upgraded:
> 	http://iou.parisc-linux.org/~grundler/palo/palo_1.3_hppa.deb
> 
> thanks to paul bame for keeping those around.
> 
> > Anyone maybe has an idea what has been changed ?
> 
> nope...have to look at palo since it doesn't matter which
> kernel I attempt to boot, it doesn't work.
> 
> Note that I tried to build palo v1.2 and that failed the same way.
> So it's possibly a compiler issue with real-mode code.
> (Not that the compiler knows the difference...)

When I last tried to build palo 1.4 the iplboot turned out bigger
(8K, iirc) than the one in the official deb, and mine didn't work.
Didn't have time to figure out why.

Richard



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From: bame@ldl.fc.hp.com (Paul Bame)
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Subject: [parisc-linux] machine migration, action required for some
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Xref: news.gmane.org gmane.linux.ports.parisc:21607

We're moving most of the virtual host names which were aliases of
dsl2.external.hp.com to point at palinux.external.hp.com which until
now was only serving as cvs.parisc-linux.org.  Most people should not
experience any interruption in service but IF YOU HAVE AN ACCOUNT ON
DSL2 read on...

The host names which have moved or will soon move are:

parisc-linux.org
www.parisc-linux.org
ftp.parisc-linux.org
rsync.parisc-linux.org
register.parisc-linux.org
hwdb.parisc-linux.org
testhwdb.parisc-linux.org

We're not sure the best way and time to move the e-mail related ones yet
but that's coming too.

IF YOU HAVE AN ACCOUNT ON DSL2... and you use any *.parisc-linux.org
host names to refer to personal web pages (I do), move them to
palinux.external.hp.com.

Although we don't have a turn-off date for dsl2, now's a good time to
move those other things you depend upon to palinux.external just in
case...  things like e-mail forwarding and files you share with other
developers via ssh through dsl etc...

	-Paul


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Subject: [parisc-linux] [RFC] palo extended partition patch
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Hi all,

I was looking at palo and noticed the code to handle extended
partitions beyond 2GB wasn't very elegant and maybe wrong.

But I don't have extended partitions on any of my systems.
Anyone who does can build/test this for me?

I'm also wondering if the "Skipping extended partition"
message should really be printed or not.

thanks
grant

Index: lib/diskpart.c
===================================================================
RCS file: /var/cvs/palo/lib/diskpart.c,v
retrieving revision 1.6
diff -u -p -r1.6 diskpart.c
--- a/lib/diskpart.c	4 May 2004 21:41:05 -0000	1.6
+++ b/lib/diskpart.c	4 May 2004 22:01:25 -0000
@@ -53,12 +53,24 @@ load_partitions(int bootdev, struct disk
 	while (extnum < maxparts)
 	{
 	    /* we're currently using 32-bit file seeks which is ok since
-	     * the IPL is also limited to 2G right now.  So on big disks
-	     * this next read may fail, and we need to let that happen
-	     * gracefully.
+	     * the IPL is also limited to 2G right now.  On disks > 4GB
+	     * this next read may fail. Handle that gracefully.
+	     * Yes, we know newer IODC can read/write > 2GB but
+	     * it would confuse too many people if the docs attempted
+	     * to explain for no tangible benefit. And moving boot disks
+	     * between systems will always work (assuming a useable
+	     * kernel is present).
 	     */
+	    if (offset >= (2 * 1024 * 1024 * 1024 / 512)) {
+		printf("Skipping extended partition %d - beyond reach of IPL\n\r",
+				extnum);
+		break;
+	    }
 	    if (seekread(bootdev, (char *)&fb, sizeof fb, 512 * offset) == -1)
+		printf("seekread(bootdev,...,0x%x) failed!\n\r",
+				512 * offset);
 		break;
+	    }
 	    if (fb.dosmagic[0] != 0x55 || fb.dosmagic[1] != 0xaa)
 	    {
 		printf("Bad DOS magic in extended partition\n\r");


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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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On Wed, 2004-05-05 at 15:48, James Bottomley wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	jejb	04/05/05 14:48:11
> 
> Modified files:
> 	.              : Makefile 
> 	include/asm-parisc: page.h pgtable.h 
> 
> Log message:
> Move to 8 byte Page Table Entries for 32 bit kernels.  This allows us
> to recover sixteen flag bits (the sixteen bits at the top of the pte for
> 64 bit - 48 address bits is pretty unlikely to be hit soon) on both 32
> and 64 bits.

===== include/asm-parisc/page.h 1.10 vs edited =====
--- 1.10/include/asm-parisc/page.h	Mon May  3 14:40:20 2004
+++ edited/include/asm-parisc/page.h	Wed May  5 10:12:19 2004
@@ -40,7 +40,14 @@
 /*
  * These are used to make use of C type-checking..
  */
+#ifdef __LP64__
 typedef struct { unsigned long pte; } pte_t;
+#else
+typedef struct {
+	unsigned long pte;
+	unsigned long flags;
+} pte_t;
+#endif
 /* NOTE: even on 64 bits, these entries are __u32 because we allocate
  * the pmd and pgd in ZONE_DMA (i.e. under 4GB) */
 typedef struct { __u32 pmd; } pmd_t;
@@ -48,6 +55,11 @@
 typedef struct { unsigned long pgprot; } pgprot_t;
 
 #define pte_val(x)	((x).pte)
+#ifdef __LP64__
+#define pte_flags(x)	#error
+#else
+#define pte_flags(x)	((x).flags)
+#endif
 #define pmd_val(x)	((x).pmd)
 #define pgd_val(x)	((x).pgd)
 #define pgprot_val(x)	((x).pgprot)
@@ -95,7 +107,7 @@
 #define BITS_PER_PMD_ENTRY	2
 #define BITS_PER_PGD_ENTRY	2
 #else
-#define BITS_PER_PTE_ENTRY	2
+#define BITS_PER_PTE_ENTRY	3
 #define BITS_PER_PMD_ENTRY	2
 #define BITS_PER_PGD_ENTRY	BITS_PER_PMD_ENTRY
 #endif
===== include/asm-parisc/pgtable.h 1.21 vs edited =====
--- 1.21/include/asm-parisc/pgtable.h	Sun May  2 05:20:20 2004
+++ edited/include/asm-parisc/pgtable.h	Wed May  5 12:13:18 2004
@@ -70,8 +70,8 @@
 #define PGD_ALLOC_ORDER	2 /* first pgd contains pmd */
 #else
 #define PT_NLEVELS	2
-#define PT_INITIAL	2 /* Number of initial page tables */
-#define PGD_ORDER	0 /* Number of pages per pgd */
+#define PT_INITIAL	4 /* Number of initial page tables */
+#define PGD_ORDER	1 /* Number of pages per pgd */
 #define PGD_ALLOC_ORDER	PGD_ORDER
 #endif
 



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Regarding your message to
nuben


ATENTO SALUDO:

El mensaje que intenta ingresar al servidor quimbaya.udea.edu.co, tiene un 
anexo no permitido por el sistema, por seguridad no se entregara a su 
destinatario y sera borrado.

Cordialmente,

Centro de Capacitacin Internet
Vicerrectora de Docencia
Universidad de Antioquia
Email:  cci@quimbaya.udea.edu.co
Telefono: +57(4)210 5953
Oficina 22-234

REPORT: Trapped poisoned executable "message.scr"
REPORT: Not a document, or already poisoned by filename. Not scanned for macros.
STATUS: Message quarantined, not delivered to recipient.

--
Message sanitized on quimbaya.udea.edu.co
See http://www.impsec.org/email-tools/sanitizer-intro.html for details.



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> > Move to 8 byte Page Table Entries for 32 bit kernels.  This allows us
> > to recover sixteen flag bits (the sixteen bits at the top of the pte for
> > 64 bit - 48 address bits is pretty unlikely to be hit soon) on both 32
> > and 64 bits.

jejb, this seems to have broken the kernel for me. On my c3750, -pa9
doesn't boot (-pa7 is ok). With -pa9 the machine HPMC's very early
during boot (i have early debug turned on, but there was no console
output). 

unfortunately the hpmc data doesn't seem to say very much. iaoq is
pointing to skip_save_ior. rp is 0 :-(

perhaps this is sensitive to amount of physical memory in the system? i
have 1.5GB in my system. 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux-2.6 jejb
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> jejb, this seems to have broken the kernel for me. On my c3750, -pa9
> doesn't boot (-pa7 is ok). With -pa9 the machine HPMC's very early
> during boot (i have early debug turned on, but there was no console
> output). 

i forgot to mention, this is running 32-bit.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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On Wed, 5 May 2004, Randolph Chung wrote:

> > > Move to 8 byte Page Table Entries for 32 bit kernels.  This allows us
> > > to recover sixteen flag bits (the sixteen bits at the top of the pte for
> > > 64 bit - 48 address bits is pretty unlikely to be hit soon) on both 32
> > > and 64 bits.
>
> jejb, this seems to have broken the kernel for me. On my c3750, -pa9
> doesn't boot (-pa7 is ok). With -pa9 the machine HPMC's very early
> during boot (i have early debug turned on, but there was no console
> output).

I tried -pa8 yesterday (32bit) on my C3000, and it also HPMCs straight
after the 'if this is the last message ...' output.

At first I thought it was related to the palo-1.4 bug, so I reinstalled
palo-1.3, but this didn't solve the problem.

> perhaps this is sensitive to amount of physical memory in the system? i
> have 1.5GB in my system.

1GB here.


Thanks,
  Max



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On Wed, May 05, 2004 at 10:05:21PM -0700, Randolph Chung wrote:
> jejb, this seems to have broken the kernel for me. On my c3750, -pa9
> doesn't boot (-pa7 is ok). With -pa9 the machine HPMC's very early
> during boot (i have early debug turned on, but there was no console
> output). 
> 
Same thing happens on a b180.

Regards,
-- 
Kyle McMartin


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On Wed, Apr 28, 2004 at 09:23:56PM +0300, Martin-ric Racine wrote:

> Is any other work required beyond the patch you already submitted to the
> maintainer?  If so, just how much is needed?  I have some time to spare.

I don't think there is more work than including the already written
patch to get the package compiling on hppa.

The important issue is that I will not include support for hppa if the
package is not of any use for the hppa users and developers. So please
test it and see if you find the information that is provided of any
interest.


- Werner


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On Thu, 6 May 2004, Grant Grundler wrote:

> Using the HP USB keyboard (Model SK-2502U, P/N A4983-60401) on an HP C3600,
> the regular 4 arrow keys (seperate from the numeric keypad) do NOT work.
> They "select" instead of moving the highlight up/down.

I also have a SK-2502U here (using Voodoo2 as graphics card).

> Use the numeric keypad instead - it has "arrow keys" on it as well.
>
> It's more "natural" to use the regular arrow keys and it should be
> trivial for the right person to fix.  I gather the numeric pad sends
> out a different scan code than the four "arrow" keys.

xev reports the following for the 'regular' arrow keys:

'<-'     keycode 100
'->'     keycode 102
  up     keycode 98
down     keycode 104

and the following for the numpad arrow keys:

'<-'     keycode 83
'->'     keycode 85
  up     keycode 80
down     keycode 88


Unfortunately I can't use 'showkey' since I'm running serial console
instead of fb console ...

Greetings,
   Max
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Grant Grundler <grundler@parisc-linux.org> writes:
> Comments/Problems:
> 
> Using the HP USB keyboard (Model SK-2502U, P/N A4983-60401) on an HP C3600,
> the regular 4 arrow keys (seperate from the numeric keypad) do NOT work.
> They "select" instead of moving the highlight up/down.
> 
> Use the numeric keypad instead - it has "arrow keys" on it as well.

 I have found that the "arrow keys" both move the highlight and select.
This is from my experience on the console using bash on a B1K using some
crappy usb keyboard.

Jim
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] installation-reports - hppa c3600 graphical/usb
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Package: installation-reports

Debian-installer-version: Beta4 5/6/2004
uname -a: Linux debian 2.4.25-32 #1 Mon Apr 19 18:11:19 UTC 2004 parisc unknown
Date: 5/6/2004
Method: booted CD from sarge-hppa-netinst.iso
	http://cdimage.debian.org/pub/cdimage-testing/sarge_d-i/hppa/beta4/sarge-hppa-netinst.iso

Machine: HP C3600 workstation with PCI VIs-EG/USB console
Processor: PA8600
Memory: 4GB
Root Device: fwscsi.5.0
Root Size/partition table: n/a
Output of lspci: n/a

Base System Installation Checklist:

Initial boot worked:    [O]
Configure network HW:   [O]
Config network:         [O]
Detect CD:              [O]
Load installer modules: [?]
Detect hard drives:     [O]
Partition hard drives:  [ ]
Create file systems:    [ ]
Mount partitions:       [ ]
Install base system:    [ ]
Install boot loader:    [ ]
Reboot:                 [ ]
[O] = OK, [E] = Error (please elaborate below), [ ] = didn't try it
[?] = No clue if that was done or worked

Comments/Problems:

Using the HP USB keyboard (Model SK-2502U, P/N A4983-60401) on an HP C3600,
the regular 4 arrow keys (seperate from the numeric keypad) do NOT work.
They "select" instead of moving the highlight up/down.

Use the numeric keypad instead - it has "arrow keys" on it as well.

It's more "natural" to use the regular arrow keys and it should be
trivial for the right person to fix.  I gather the numeric pad sends
out a different scan code than the four "arrow" keys.

I only needed to boot the system to recover a palo (v1.4 built with gcc
3.3.3) which fails to boot.

grant
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Subject: Re: [parisc-linux] installation-reports - hppa c3600 graphical/usb
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On Thursday 06 May 2004 20:42, James Morrison wrote:
> 
> Grant Grundler <grundler@parisc-linux.org> writes:
> > Comments/Problems:
> > 
> > Using the HP USB keyboard (Model SK-2502U, P/N A4983-60401) on an HP C3600,
> > the regular 4 arrow keys (seperate from the numeric keypad) do NOT work.
> > They "select" instead of moving the highlight up/down.
> > 
> > Use the numeric keypad instead - it has "arrow keys" on it as well.
> 
>  I have found that the "arrow keys" both move the highlight and select.
> This is from my experience on the console using bash on a B1K using some
> crappy usb keyboard.

The attached patch should fix the keyboard problem.
Any feedback welcome...

Helge


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Index: drivers/input/keyboard/hpps2atkbd.h
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/input/keyboard/hpps2atkbd.h,v
retrieving revision 1.7
diff -u -p -r1.7 hpps2atkbd.h
--- a/drivers/input/keyboard/hpps2atkbd.h	20 Mar 2004 21:01:15 -0000	1.7
+++ b/drivers/input/keyboard/hpps2atkbd.h	7 May 2004 19:10:00 -0000
@@ -53,7 +53,7 @@
 /* 78 */  KEY_F11,      KEY_KPPLUS,    KEY_KP3,       KEY_KPMINUS,   KEY_KPASTERISK,KEY_KP9,      KEY_SCROLLLOCK,KEY_102ND,
 /* 80 */  KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,
 /* 88 */  KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,
-/* 90 */  KEY_RESERVED, KEY_RIGHTALT,  KEY_SYSRQ,     KEY_RESERVED,  KEY_RIGHTCTRL, KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,
+/* 90 */  KEY_RESERVED, KEY_RIGHTALT,  255,           KEY_RESERVED,  KEY_RIGHTCTRL, KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,
 /* 98 */  KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_CAPSLOCK, KEY_RESERVED,  KEY_LEFTMETA,
 /* a0 */  KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED, KEY_RESERVED,  KEY_RIGHTMETA,
 /* a8 */  KEY_RESERVED, KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED,  KEY_RESERVED, KEY_RESERVED,  KEY_COMPOSE,

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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Blue screen?
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pa,

No, not THE blue screen, but my blue screen. Have a 715/50, but the
graphics are all tinted blue. I remember a similar problem being fixed a
long time ago. I'm searching the ML, but I can't find what I'm searching
for in particular.

c.

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On Monday 10 May 2004 23:31, Carlos O'Donell wrote:
> pa,
> 
> No, not THE blue screen, but my blue screen. Have a 715/50, but the
> graphics are all tinted blue. I remember a similar problem being fixed a
> long time ago. I'm searching the ML, but I can't find what I'm searching
> for in particular.

I saw that too today - not sure yet if due to the new kernel or due to an apt-get upgrade...

Helge

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Subject: Re: [parisc-linux] [PATCH] Harmony driver - Reject AFMT_S16_LE &
	Implement SNDCTL_DSP_CHANNELS
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On Mon, Feb 23, 2004 at 03:56:01AM +0000, Stuart Brady wrote:
> On Sun, Feb 22, 2004 at 09:20:57AM +0000, Stuart Brady wrote:
> 
> > +				if (put_user(ival, (int *) arg))
> > +					return -EFAULT;
> 
> I've been looking at the specification, I think this should have been:
...

Hi Stuart,
Sorry for taking so long with this...I was expecting someone else
to reply and maybe missed it. A couple of minor problems with
your patch:

1) it's for 2.4 and I'm personally trying to focus on 2.6 tree now.
   2.6 is ready for prime time. It's been my desktop/ftp/http server
   (C3600) for the past couple of monthes and has proven very stable.

2) OSS is "decprecated" according to the 2.6 sound/Kconfig "Help".
   Ie use ALSA instead.  See SOUND_PRIME option.

3) if no one else wants to poke at the 2.4 harmony driver, I will
   just apply your patches on good faith that it builds/works for you.
   Have you tweaked it more since Feb?

In 2.6, ALSA harmony driver does NOT compile and that's disappointing.

thanks,
grant
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On Mon, 2004-05-10 23:59:41 +0200, Helge Deller <deller@gmx.de>
wrote in message <200405102359.41471.deller@gmx.de>:
> On Monday 10 May 2004 23:31, Carlos O'Donell wrote:
> > pa,
> >=20
> > No, not THE blue screen, but my blue screen. Have a 715/50, but the
> > graphics are all tinted blue. I remember a similar problem being fixed a
> > long time ago. I'm searching the ML, but I can't find what I'm searching
> > for in particular.
>=20
> I saw that too today - not sure yet if due to the new kernel or due to an=
 apt-get upgrade...

Some 'Visual "TrueColor"' missing?

I rememeber that from dark ages ago...

MfG, JBG

--=20
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
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k!
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Subject: Re: [parisc-linux] [PATCH] Harmony driver - Reject AFMT_S16_LE &
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On Mon, May 10, 2004 at 11:24:51PM -0600, Grant Grundler wrote:
> 2) OSS is "decprecated" according to the 2.6 sound/Kconfig "Help".
>    Ie use ALSA instead.  See SOUND_PRIME option.
> 
> In 2.6, ALSA harmony driver does NOT compile and that's disappointing.

The basic problem here is that ALSA doesn't use the generic device model.
It has its own crazy set of bus abstractions which would all need to
be implemented for the parisc_device ... for the benefit of one driver.
Small wonder nobody's been interested in doing the work yet.

I think we'll be sticking with OSS Harmony for a while.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] [PATCH] Harmony driver - Reject AFMT_S16_LE
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Actually, ALSA Harmony driver is compiling at this point (2.6.6-rc3-pa9), 
with the caveat that you need the latest CVS of sound/parisc..
Takashi Iwai has been kind enough to work on this, with me doing some basic 
testing. Unfortunately, my testing hit a snag when a hard drive started 
releasing magic smoke ever so slowly.

Thanks
Paul

----- Original Message ----- 
From: "Matthew Wilcox" <willy@debian.org>
To: "Grant Grundler" <grundler@parisc-linux.org>
Cc: <parisc-linux@lists.parisc-linux.org>
Sent: Tuesday, May 11, 2004 8:07 AM
Subject: Re: [parisc-linux] [PATCH] Harmony driver - Reject AFMT_S16_LE 
&Implement SNDCTL_DSP_CHANNELS


> On Mon, May 10, 2004 at 11:24:51PM -0600, Grant Grundler wrote:
>> 2) OSS is "decprecated" according to the 2.6 sound/Kconfig "Help".
>>    Ie use ALSA instead.  See SOUND_PRIME option.
>>
>> In 2.6, ALSA harmony driver does NOT compile and that's disappointing.
>
> The basic problem here is that ALSA doesn't use the generic device model.
> It has its own crazy set of bus abstractions which would all need to
> be implemented for the parisc_device ... for the benefit of one driver.
> Small wonder nobody's been interested in doing the work yet.
>
> I think we'll be sticking with OSS Harmony for a while.
>
> -- 
> "Next the statesmen will invent cheap lies, putting the blame upon
> the nation that is attacked, and every man will be glad of those
> conscience-soothing falsities, and will diligently study them, and refuse
> to examine any refutations of them; and thus he will by and by convince
> himself that the war is just, and will thank God for the better sleep
> he enjoys after this process of grotesque self-deception." -- Mark Twain
> _______________________________________________
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Subject: Re: [parisc-linux] A couple of questions
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On Tue, 2004-05-11 18:10:04 -0400, Nathaniel Woods <nwoods29321@chater.net>
wrote in message <000a01c437a4$c0d70de0$6401a8c0@nwoods>:
> First off,  I am using an HP 9000/720.
> 1. How do I configure XFree86 to use my vid card? I know I must us FBdev =
but it always tells me "Addscreen/Screeninit failed for driver 0"

1. Please supply the "dmesg" command output to first of all let's see if
your video subsystem works properly.

2. Please supply the full /var/log/XFree86.0.log

> 2. When trying to access the floppy (which is at /dev/sda) the system cra=
shes. How do I fix this?

Are there any messages? Yes? Which ones? If in doubt, better send too
much than too little...

> 3. There is a built in audio port. How do I configure it?

What kernel version do you have? It's probably the harmony driver, but
it's (currently) kind of broken:)

MfG, JBG

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Subject: Re: [parisc-linux] A couple of questions
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On Tue, May 11, 2004 at 06:10:04PM -0400, Nathaniel Woods wrote:
> First off,  I am using an HP 9000/720.
> 2. When trying to access the floppy (which is at /dev/sda) the system
> crashes. How do I fix this?

By sending us the messages ;-)

> 3. There is a built in audio port. How do I configure it?

Is there?  I don't see one listed in the device inventory at
http://hwdb.parisc-linux.org/view.php3?type=machine&name=720

We currently know about 5 kinds of audio on PA machines.  Most older
machines have Harmony (sversion 0x0007B).  The 705 and 710 have a
different audio chip (sversion 0x0007A).  The 745i and 747i have another
(sversion 0x0007E) and the 735 and 755 have a fourth (sversion 0x0007F).
The newest workstations have a PCI sound chip which I know little about.

The harmony driver claims to support the 7B, 7E and 7F audio types and has
support for 7A commented out (presumably it doesn't work).  The first
thing to do is to boot the machine, preferably with a 2.6 kernel.
You should see the device inventory which looks something like this:

Found devices:
1. Gecko 80 GSC Core Graphics at 0xf8000000 [1] { 10, 0x0, 0x01c, 0x00085 }
2. Gecko 80 Core BA at 0xf0100000 [2] { 11, 0x0, 0x01c, 0x00081 }
3. Gecko 80 Core SCSI at 0xf0106000 [2/0/1] { 10, 0x0, 0x01c, 0x00082 }
...
15. Gecko 80 (712/80) at 0xfffbe000 [8] { 0, 0x0, 0x601, 0x00004 }
16. Memory at 0xfffbf000 [9] { 1, 0x0, 0x038, 0x00009 }
CPU(s): 1 x PA7100LC (PCX-L) at 80.000000 MHz

Could you send your inventory?  That gives us a place to start looking.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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> On Tue, May 11, 2004 at 06:10:04PM -0400, Nathaniel Woods wrote:

>> 3. There is a built in audio port. How do I configure it?

720 = Cobra, chipset is ASP.
OpenPA.Net lists a "beep audio jack" on the Cobra. Doesn't sound
very exciting, and it sure ain't Harmony. OpenPA also has a link
to the Owners Guide.

http://www.openpa.net/systems/snakes.html
http://h20000.www2.hp.com/bc/docs/support/SupportManual/lpv37630/lpv37630.pdf


-Andy
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vid card in X = Fixed, I set "depth = 8", now it works but if I try to set
it to anything else it says "FBIOPUT_VSCREENINFO: Invalid Argument".  So
I'll just leave it at 8.

> > 2. When trying to access the floppy (which is at /dev/sda) the system
crashes. How do I fix this?
>
> Are there any messages? Yes? Which ones? If in doubt, better send too
> much than too little...
>
> > 2. When trying to access the floppy (which is at /dev/sda) the system
> > crashes. How do I fix this?
>
> By sending us the messages ;-)
>
> Could you send your inventory?  That gives us a place to start looking.
>
I'm new to linux so, How do I get the messages to send?? Since the floppy
drive won't work, I would have to transe them to my win 2k pro system via my
network then send them. How would I do this?? I have telnet on both machines
and a telnet server on my win 2k system. Would I be able to transfer the
files through telnet?

As for the HP 9000/720, I have all the Original documentation and Official
HP-UX CD's
I am not very worried about the speaker connector on the back, BUT

The parisc-linux says there is now Full Hil support. I have the 2.4.17
Kernel. How do I update to the Newest Kernel version and configure it and X
for the hil keyboard and mouse?


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To: Nathaniel Woods <nwoods29321@chater.net>
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On Wed, May 12, 2004 at 01:17:33PM -0400, Nathaniel Woods wrote:
> vid card in X = Fixed, I set "depth = 8", now it works but if I try to set
> it to anything else it says "FBIOPUT_VSCREENINFO: Invalid Argument".
> So I'll just leave it at 8.

It has to be set to whatever "fbset" command says it is.
Some of the *supported* graphics chips do work with higher color depth.

> I'm new to linux so, How do I get the messages to send?? Since the floppy
> drive won't work, I would have to transe them to my win 2k pro system via my
> network then send them. How would I do this?? I have telnet on both machines
> and a telnet server on my win 2k system. Would I be able to transfer the
> files through telnet?

cut/paste the dmesg output from the telnet window into an email.
Or redirect dmesg output to a file and rcp/scp the file so
it can be attached or appended to an email.

> As for the HP 9000/720, I have all the Original documentation and Official
> HP-UX CD's I am not very worried about the speaker connector on the back,
> BUT The parisc-linux says there is now Full Hil support.
> I have the 2.4.17 Kernel.

"apt-get install kernel-image-2.4.25-32" should be the latest 2.4.x kernel.
(or something reasonably close to that)

> How do I update to the Newest Kernel version and configure it and X
> for the hil keyboard and mouse?

IIRC, the parisc-linux FAQ has this answer.

grant
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] palo-1.4 broken on 32bit ?
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> On Tue, May 04, 2004 at 09:36:28PM +0200, Helge Deller wrote:
> > Hi all,
> > 
> > after apt-get upgrading to palo_1.4_hppa.deb it seems, that palo-1.4 isn't able any longer to boot up a 32bit Linux kernel on a 32bit Machine.
> > I've run several tests on a B180L, and only after downgrading to palo-1.3 I was able to boot again.
> > 
> > Am I the only one seeing this problem ? 
> 
> No - I've been seeing it on the c3600 as well.
> I haven't tried 64-bit kernels.
> And downgrading iplboot to 1.3 also solves it for me too.

Same here on 3750.  Boot fails with

ext2_init: bad magic 0x0

Downgraded, reran palo and the problem is gone.  Command line is >128.
I shortened it a bit but I think this a problem for people using graphics
consoles.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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New palo in CVS or a deb for testing/unstable at
http://parisc-linux.org/~bame/palo/palo_1.4heisen_hppa.deb

I'll upload to Debian when someone besides me sees success.

	-P
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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: [parisc-linux] Update to palo to allow the listing of the current
	kernel directory
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This patch (to palo's cvs head) adds the capability to list whatever's
in the current kernel directory.  Probably you'll only find it useful
if, like me, you keep lots of kernels around and can never remember
their names

James

Index: ipl/bootloader.h
===================================================================
RCS file: /var/cvs/palo/ipl/bootloader.h,v
retrieving revision 1.13
diff -u -r1.13 bootloader.h
--- a/ipl/bootloader.h	30 Dec 2003 17:52:06 -0000	1.13
+++ b/ipl/bootloader.h	13 May 2004 23:58:38 -0000
@@ -21,6 +21,7 @@
 	int	(*open)(const char *filename);
 	int	(*bread)(int fd, long blkno, long nblks, char *buf);
 	void	(*close)(int fd);
+	const char *	(*readdir)(int fd, int rewind);
 };
 

@@ -60,6 +61,8 @@
 int ext2_mount(long cons_dev, long p_offset, long quiet);
 int ext2_open(const char *filename);
 int ext2_filesize(int fd);
+const char * ext2_readdir(int fd, int rewind);
+void ext2_close(int fd);
 
 /* lib.c */
 void blockprint(int zero_offset, char *buf, int nbytes);
Index: ipl/ext2.c
===================================================================
RCS file: /var/cvs/palo/ipl/ext2.c,v
retrieving revision 1.11
diff -u -r1.11 ext2.c
--- a/ipl/ext2.c	28 Jul 2002 05:24:06 -0000	1.11
+++ b/ipl/ext2.c	13 May 2004 23:58:39 -0000
@@ -674,14 +674,13 @@
 	return ext2_breadi(ip, blkno, nblks, buffer);
 }
 
-#if 0
 /*
  * Note: don't mix any kind of file lookup or other I/O with this or
  * you will lose horribly (as it reuses blkbuf)
  */
-static const char * ext2_readdir(int fd, int rewind)
+const char * ext2_readdir(int fd, int rewind)
 {
-	struct ext2_inode * ip = &inode_table[fd].inode;
+	struct ext2_inode * ip = fd2inode[fd];
 	struct ext2_dir_entry_2 * ent;
 	if (!S_ISDIR(ip->i_mode)) {
 		printf("fd %d (inode %d) is not a directory (mode %x)\n",
@@ -696,7 +695,6 @@
 		return NULL;
 	}
 }
-#endif
 
 int ext2_filesize(int fd)
 {
@@ -822,7 +820,7 @@
 }
 

-static void ext2_close(int fd)
+void ext2_close(int fd)
 {
 	/* blah, hack, don't close the root inode ever */
 	if (&inode_table[fd].inode != root_inode)
@@ -831,9 +829,13 @@
 

 struct bootfs ext2fs = {
-	0 /* FS_EXT2 */, 0,
-	ext2_mount,
-	ext2_open,  ext2_bread,  ext2_close /* ,
-	ext2_readdir, ext2_fstat */
+	.fs_type =	0,
+	.blocksize =	0,
+	.mount =	ext2_mount,
+	.open =		ext2_open,
+	.bread = 	ext2_bread,
+	.close = 	ext2_close,
+	.readdir =	ext2_readdir,
+	/* .fstat =	ext2_fstat */
 };
 /* $Id: ext2.c,v 1.5 2000/09/21 16:47:48 bame Exp $ */
Index: ipl/ipl.c
===================================================================
RCS file: /var/cvs/palo/ipl/ipl.c,v
retrieving revision 1.37
diff -u -r1.37 ipl.c
--- a/ipl/ipl.c	4 May 2004 21:41:05 -0000	1.37
+++ b/ipl/ipl.c	13 May 2004 23:58:40 -0000
@@ -215,6 +215,42 @@
     strcpy(out, tmpbuf);
 }
 
+static struct diskpartition partition[MAXPARTS];
+static int ext2 = 0;
+static int bootdev;
+
+static void
+partition_transform(int *kern_part, int *rd_part)
+{
+    int i, palo_part = -1;
+
+    /* if the F0 partition is the same as the requested kernel partition,
+     * for now change it to zero to re-use the existing logic.  Should do
+     * the reverse in the future probably.
+     */
+    for (i = 0; i < sizeof partition / sizeof partition[0]; i++)
+    {
+	if (partition[i].id == PALO_PARTITION)
+	{
+	    palo_part = i + 1;
+	    if (*kern_part == palo_part)
+		*kern_part = 0;
+
+	    if (rd_part && *rd_part == palo_part)
+		*rd_part = 0;
+
+	    break;
+	}
+    }
+
+    if (ext2 && *kern_part == 0) {
+	*kern_part = palo_part;
+	if(rd_part && *rd_part == 0)
+	    *rd_part = palo_part;
+    }
+
+}
+
 static void
 interact(char *commandline, int *ok)
 {
@@ -246,7 +282,7 @@
 	{
 	    printf("%2d: %s\n", i, argv[i]);
 	}
-	puts("\nEdit which field?\n(or 'b' to boot with this command line, 'r' to restore)? ");
+	puts("\nEdit which field?\n(or 'b' to boot with this command line, 'r' to restore, 'l' to list dir)? ");
 	numbuf[0] = '0';
 	numbuf[1] = '\0';
 	enter_text(numbuf, sizeof numbuf - 1);
@@ -264,6 +300,48 @@
 	    continue;
 	}
 
+	if (numbuf[0] == 'l')
+	{
+	    char  *p, kern_dir[256];
+	    const char *dir;
+	    int fd, part, part_fd;
+	    
+
+	    join(commandline, argc, argv, ok);
+	    parse_pfname(argv[0], &part, kern_dir);
+	    p = strrchr(kern_dir, '/');
+	    *(p+1) = '.';
+	    *(p+2) = '\0';
+
+	    printf("Directory listing of %s\n\n", kern_dir);
+
+	    partition_transform(&part, NULL);
+
+	    part--;		/* partition table starts from zero */
+	    part_fd = offset_open(bootdev, 512 * partition[part].start,
+				      512 * partition[part].length);
+	    if(ext2_mount(part_fd, 0, 0) == -1) {
+		printf("Failed to mount partition %d\n", part);
+		continue;
+	    }
+
+	    if((fd = ext2_open(kern_dir)) == -1) {
+		printf("Failed to open directory %s\n", kern_dir);
+		continue;
+	    }
+
+	    while((dir = ext2_readdir(fd, 0)) != NULL)
+		if(dir[0] != '.') /* skip hidden files and . and .. */
+		    printf("  %s\n", dir);
+	    
+	    printf("\n");
+	    ext2_close(fd);
+	    /* There's no umount ... since the next mount reuses
+	     * the current one's data structures ... */
+
+	    continue;
+	}
+
 	editfield = parse_number(numbuf, &p);
 
 	if (editfield < argc)
@@ -284,13 +362,11 @@
     extern char _end, _edata;
     int partitioned;
     unsigned entry;
-    struct diskpartition partition[MAXPARTS];
     struct firstblock f;
     extern char commandline[];
     int blocked_bootdev;
-    int bootdev;
     int wide;
-    int kern_part, rd_part, i, ext2 = 0, palo_part = -1;
+    int kern_part, rd_part;
     char kern_name[128], rd_name[128];
     char kern_fullname[128];
     int ok = 1;
@@ -448,30 +524,7 @@
     if (rd_part != -1)
 	printf("Selected ramdisk: %s from partition %d\n", rd_name, rd_part);
 
-    /* if the F0 partition is the same as the requested kernel partition,
-     * for now change it to zero to re-use the existing logic.  Should do
-     * the reverse in the future probably.
-     */
-    for (i = 0; i < sizeof partition / sizeof partition[0]; i++)
-    {
-	if (partition[i].id == PALO_PARTITION)
-	{
-	    palo_part = i + 1;
-	    if (kern_part == palo_part)
-		kern_part = 0;
-
-	    if (rd_part == palo_part)
-		rd_part = 0;
-
-	    break;
-	}
-    }

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Subject: Re: [parisc-linux] palo-1.4 broken on 32bit ?
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Xref: news.gmane.org gmane.linux.ports.parisc:21634

On Thu, May 13, 2004 at 02:14:31PM -0600, bame@hp.com wrote:
> 
> New palo in CVS or a deb for testing/unstable at
> http://parisc-linux.org/~bame/palo/palo_1.4heisen_hppa.deb
> 
> I'll upload to Debian when someone besides me sees success.

You Rock!  works on my B180.
The b180 failed to boot with palo 1.4 two or three days ago.

thanks!
grant
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Subject: =?ISO-8859-1?Q?RE=3A=20=5Bparisc=2Dlinux=5D=20Update=20to=20palo=20to=20allow=20the=20listing=20of=20the=20current=09kernel=20directory?=
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Xref: news.gmane.org gmane.linux.ports.parisc:21635

Hi all,

That works for me ;)
but if there are some mistake in the palo.conf (an empty one ?) and you
don't want to boot interactively: the ipl will loop .
I suggested a patch (http://lists.parisc-linux.org/pipermail/parisc-linux=
/2004-January/022030.html)
which I use with success since this time on my b2k, n4k and c110. Though
I never get any news, is there any interest to submit an update?

Thanks,
    Joel
> -- Original Message --
> From: James Bottomley <James.Bottomley@steeleye.com>
> To: PARISC list <parisc-linux@lists.parisc-linux.org>
> Date: 13 May 2004 19:00:54 -0500
> Subject: [parisc-linux] Update to palo to allow the listing of the curr=
ent
> 	kernel directory
> 
> 
> This patch (to palo's cvs head) adds the capability to list whatever's
> in the current kernel directory.  Probably you'll only find it useful
> if, like me, you keep lots of kernels around and can never remember
> their names
> 
> James
> 
> Index: ipl/bootloader.h
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> RCS file: /var/cvs/palo/ipl/bootloader.h,v
> retrieving revision 1.13
> diff -u -r1.13 bootloader.h
> --- a/ipl/bootloader.h	30 Dec 2003 17:52:06 -0000	1.13
> +++ b/ipl/bootloader.h	13 May 2004 23:58:38 -0000
> @@ -21,6 +21,7 @@
>  	int	(*open)(const char *filename);
>  	int	(*bread)(int fd, long blkno, long nblks, char *buf);
>  	void	(*close)(int fd);
> +	const char *	(*readdir)(int fd, int rewind);
>  };
>  
> 
> @@ -60,6 +61,8 @@
>  int ext2_mount(long cons_dev, long p_offset, long quiet);
>  int ext2_open(const char *filename);
>  int ext2_filesize(int fd);
> +const char * ext2_readdir(int fd, int rewind);
> +void ext2_close(int fd);
>  
>  /* lib.c */
>  void blockprint(int zero_offset, char *buf, int nbytes);
> Index: ipl/ext2.c
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> RCS file: /var/cvs/palo/ipl/ext2.c,v
> retrieving revision 1.11
> diff -u -r1.11 ext2.c
> --- a/ipl/ext2.c	28 Jul 2002 05:24:06 -0000	1.11
> +++ b/ipl/ext2.c	13 May 2004 23:58:39 -0000
> @@ -674,14 +674,13 @@
>  	return ext2_breadi(ip, blkno, nblks, buffer);
>  }
>  
> -#if 0
>  /*
>   * Note: don't mix any kind of file lookup or other I/O with this or
>   * you will lose horribly (as it reuses blkbuf)
>   */
> -static const char * ext2_readdir(int fd, int rewind)
> +const char * ext2_readdir(int fd, int rewind)
>  {
> -	struct ext2_inode * ip =3D &inode_table[fd].inode;
> +	struct ext2_inode * ip =3D fd2inode[fd];
>  	struct ext2_dir_entry_2 * ent;
>  	if (!S_ISDIR(ip->i_mode)) {
>  		printf("fd %d (inode %d) is not a directory (mode %x)\n",
> @@ -696,7 +695,6 @@
>  		return NULL;
>  	}
>  }
> -#endif
>  
>  int ext2_filesize(int fd)
>  {
> @@ -822,7 +820,7 @@
>  }
>  
> 
> -static void ext2_close(int fd)
> +void ext2_close(int fd)
>  {
>  	/* blah, hack, don't close the root inode ever */
>  	if (&inode_table[fd].inode !=3D root_inode)
> @@ -831,9 +829,13 @@
>  
> 
>  struct bootfs ext2fs =3D {
> -	0 /* FS_EXT2 */, 0,
> -	ext2_mount,
> -	ext2_open,  ext2_bread,  ext2_close /* ,
> -	ext2_readdir, ext2_fstat */
> +	.fs_type =3D	0,
> +	.blocksize =3D	0,
> +	.mount =3D	ext2_mount,
> +	.open =3D		ext2_open,
> +	.bread =3D 	ext2_bread,
> +	.close =3D 	ext2_close,
> +	.readdir =3D	ext2_readdir,
> +	/* .fstat =3D	ext2_fstat */
>  };
>  /* $Id: ext2.c,v 1.5 2000/09/21 16:47:48 bame Exp $ */
> Index: ipl/ipl.c
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> RCS file: /var/cvs/palo/ipl/ipl.c,v
> retrieving revision 1.37
> diff -u -r1.37 ipl.c
> --- a/ipl/ipl.c	4 May 2004 21:41:05 -0000	1.37
> +++ b/ipl/ipl.c	13 May 2004 23:58:40 -0000
> @@ -215,6 +215,42 @@
>      strcpy(out, tmpbuf);
>  }
>  
> +static struct diskpartition partition[MAXPARTS];
> +static int ext2 =3D 0;
> +static int bootdev;
> +
> +static void
> +partition_transform(int *kern_part, int *rd_part)
> +{
> +    int i, palo_part =3D -1;
> +
> +    /* if the F0 partition is the same as the requested kernel partiti=
on,
> +     * for now change it to zero to re-use the existing logic.  Should=

do
> +     * the reverse in the future probably.
> +     */
> +    for (i =3D 0; i < sizeof partition / sizeof partition[0]; i++)
> +    {
> +	if (partition[i].id =3D=3D PALO_PARTITION)
> +	{
> +	    palo_part =3D i + 1;
> +	    if (*kern_part =3D=3D palo_part)
> +		*kern_part =3D 0;
> +
> +	    if (rd_part && *rd_part =3D=3D palo_part)
> +		*rd_part =3D 0;
> +
> +	    break;
> +	}
> +    }
> +
> +    if (ext2 && *kern_part =3D=3D 0) {
> +	*kern_part =3D palo_part;
> +	if(rd_part && *rd_part =3D=3D 0)
> +	    *rd_part =3D palo_part;
> +    }
> +
> +}
> +
>  static void
>  interact(char *commandline, int *ok)
>  {
> @@ -246,7 +282,7 @@
>  	{
>  	    printf("%2d: %s\n", i, argv[i]);
>  	}
> -	puts("\nEdit which field?\n(or 'b' to boot with this command line, 'r=
'
> to restore)? ");
> +	puts("\nEdit which field?\n(or 'b' to boot with this command line, 'r=
'
> to restore, 'l' to list dir)? ");
>  	numbuf[0] =3D '0';
>  	numbuf[1] =3D '\0';
>  	enter_text(numbuf, sizeof numbuf - 1);
> @@ -264,6 +300,48 @@
>  	    continue;
>  	}
>  
> +	if (numbuf[0] =3D=3D 'l')
> +	{
> +	    char  *p, kern_dir[256];
> +	    const char *dir;
> +	    int fd, part, part_fd;
> +	    
> +
> +	    join(commandline, argc, argv, ok);
> +	    parse_pfname(argv[0], &#8706;, kern_dir);
> +	    p =3D strrchr(kern_dir, '/');
> +	    *(p+1) =3D '.';
> +	    *(p+2) =3D '\0';
> +
> +	    printf("Directory listing of %s\n\n", kern_dir);
> +
> +	    partition_transform(&#8706;, NULL);
> +
> +	    part--;		/* partition table starts from zero */
> +	    part_fd =3D offset_open(bootdev, 512 * partition[part].start,
> +				      512 * partition[part].length);
> +	    if(ext2_mount(part_fd, 0, 0) =3D=3D -1) {
> +		printf("Failed to mount partition %d\n", part);
> +		continue;
> +	    }
> +
> +	    if((fd =3D ext2_open(kern_dir)) =3D=3D -1) {
> +		printf("Failed to open directory %s\n", kern_dir);
> +		continue;
> +	    }
> +
> +	    while((dir =3D ext2_readdir(fd, 0)) !=3D NULL)
> +		if(dir[0] !=3D '.') /* skip hidden files and . and .. */
> +		    printf("  %s\n", dir);
> +	    
> +	    printf("\n");
> +	    ext2_close(fd);
> +	    /* There's no umount ... since the next mount reuses
> +	     * the current one's data structures ... */
> +
> +	    continue;
> +	}
> +
>  	editfield =3D parse_number(numbuf, &p);
>  
>  	if (editfield < argc)
> @@ -284,13 +362,11 @@
>      extern char _end, _edata;
>      int partitioned;
>      unsigned entry;
> -    struct diskpartition partition[MAXPARTS];
>      struct firstblock f;
>      extern char commandline[];
>      int blocked_bootdev;
> -    int bootdev;
>      int wide;
> -    int kern_part, rd_part, i, ext2 =3D 0, palo_part =3D -1;
> +    int kern_part, rd_part;
>      char kern_name[128], rd_name[128];
>      char kern_fullname[128];
>      int ok =3D 1;
> @@ -448,30 +524,7 @@
>      if (rd_part !=3D -1)
>  	printf("Selected ramdisk: %s from partition %d\n", rd_name, rd_part);=

>  
> -    /* if the F0 partition is the same as the requested kernel partiti=
on,
> -     * for now change it to zero to re-use the existing logic.  Should=

do
> -     * the reverse in the future probably.
> -     */
> -    for (i =3D 0; i < sizeof partition / sizeof partition[0]; i++)
> -    {
> -	if (partition[i].id =3D=3D PALO_PARTITION)
> -	{
> -	    palo_part =3D i + 1;
> -	    if (kern_part =3D=3D palo_part)
> -		kern_part =3D 0;
> -
> -	    if (rd_part =3D=3D palo_part)
> -		rd_part =3D 0;
> -
> -	    break;
> -	}
> -    }
> -
> -    if (ext2 && kern_part =3D=3D 0) {
> -	kern_part =3D palo_part;
> -	if(rd_part =3D=3D 0)
> -	    rd_part =3D palo_part;
> -    }
> +    partition_transform(&kern_part, &rd_part);
>  
>      if (kern_part > 0 && !partitioned)
>      {
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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From: Ruediger Scholz <rscholz@hrzpub.tu-darmstadt.de>
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Subject: [parisc-linux] [PATCH] Harmony Driver
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Xref: news.gmane.org gmane.linux.ports.parisc:21636

This is a multi-part message in MIME format.
--------------000509060400010703070606
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Hi all,

here is a patch to bring the driver for harmony up to the current state 
of the ALSA CVS. It compiles cleanly and also didn't crash my 715/100 
when built-in (I haven't tried to built it as module. )  During boot-up 
harmony is detected correctly (means no error messages), but much more 
didn't work. It's not possible change the volume setting, and playback 
also didn't work.
But I think, these failures are easier to solve if the driver can be 
compiled and tested. So please can s.o. with higher knowledge of linux 
and parisc than me check this patch and commit it to CVS?

Thanks,
Ruediger

--------------000509060400010703070606
Content-Type: text/plain;
 name="harmony.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="harmony.diff"

Index: linux-2.6/sound/parisc/harmony.c
===================================================================
RCS file: /var/cvs/linux-2.6/sound/parisc/harmony.c,v
retrieving revision 1.6
diff -u -p -r1.6 harmony.c
--- a/linux-2.6/sound/parisc/harmony.c	4 Apr 2004 15:30:21 -0000	1.6
+++ b/linux-2.6/sound/parisc/harmony.c	15 May 2004 08:25:56 -0000
@@ -56,11 +56,7 @@
  * also controls for enabling/disabling internal speaker and line
  * input.
  *
- * Buffers used by this driver are all DMA consistent. Since harmony is
- * not "real" pci device, we use a fake struct pci_dev for
- * pci_alloc_consistent().
- * (note that some machines -712 for ex.- don't implement DMA consistent
- * memory, so we will need to use kmalloc instead)
+ * Buffers used by this driver are all DMA consistent.
  */
 
 #include <linux/delay.h>
@@ -70,11 +66,11 @@
 #include <linux/slab.h>
 #include <linux/time.h>
 #include <linux/wait.h>
+#include <linux/moduleparam.h>
 #include <sound/core.h>
 #include <sound/control.h>
 #include <sound/pcm.h>
 #include <sound/rawmidi.h>
-#define SNDRV_GET_ID
 #include <sound/initval.h>
 #include <sound/info.h>
 #include <asm/hardware.h>
@@ -100,16 +96,14 @@ MODULE_DEVICES("{{ALSA,Harmony soundcard
 #define MAX_PCM_SUBSTREAMS	4
 #define MAX_MIDI_DEVICES	0
 
-#define BUFFER_SIZE			4096
-#define MAX_BUFS			10
+#define HARMONY_BUF_SIZE	4096
+#define MAX_BUFS		10
+#define MAX_BUFFER_SIZE		(MAX_BUFS * HARMONY_BUF_SIZE)
 
 /* number of silence & graveyard buffers */
 #define GRAVEYARD_BUFS		3
 #define SILENCE_BUFS		3
 
-#define MAX_BUFFER_SIZE		(MAX_BUFS * BUFFER_SIZE)
-#define HARMONY_BUF_SIZE	BUFFER_SIZE
-
 #define HARMONY_CNTL_C		0x80000000
 
 #define HARMONY_DSTATUS_PN	0x00000200
@@ -140,6 +134,17 @@ MODULE_DEVICES("{{ALSA,Harmony soundcard
 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
+static int boot_devs;
+
+module_param_array(index, int, boot_devs, 0444);
+MODULE_PARM_DESC(index, "Index value for Sun CS4231 soundcard.");
+MODULE_PARM_SYNTAX(index, SNDRV_INDEX_DESC);
+module_param_array(id, charp, boot_devs, 0444);
+MODULE_PARM_DESC(id, "ID string for Sun CS4231 soundcard.");
+MODULE_PARM_SYNTAX(id, SNDRV_ID_DESC);
+module_param_array(enable, bool, boot_devs, 0444);
+MODULE_PARM_DESC(enable, "Enable Sun CS4231 soundcard.");
+MODULE_PARM_SYNTAX(enable, SNDRV_ENABLE_DESC);
 
 /* Register offset (from base hpa) */
 #define REG_ID		0x00
@@ -191,21 +196,18 @@ typedef struct snd_card_harmony {
 	int cap_stopped;
 	int cap_total;
 
-	struct pci_dev *fake_pci_dev; /* The fake pci_dev needed for 
-					pci_* functions under ccio. */
+	struct parisc_device *pa_dev;
+
+	struct snd_dma_device dma_dev;
 
 	/* the graveyard buffer is used as recording buffer when playback, 
 	 * because harmony always want a buffer to put recorded data */
-
-	unsigned char *graveyard_addr;
-	dma_addr_t graveyard_dma;
+	struct snd_dma_buffer graveyard_dma;
 	int graveyard_count;
 	
 	/* same thing for silence buffer */
-	unsigned char *silence_addr;
-	dma_addr_t silence_dma;
+	struct snd_dma_buffer silence_dma;
 	int silence_count;
-	struct snd_dma_device dma_dev;
 
 	/* alsa stuff */
 	snd_card_t *card;
@@ -264,6 +266,15 @@ static snd_pcm_hw_constraint_list_t hw_c
 #define HARMONY_SR_33KHZ	0x16
 #define HARMONY_SR_6KHZ		0x17
 
+/* bits corresponding to the entries of snd_card_harmony_rates */
+static unsigned int rate_bits[14] = {
+	HARMONY_SR_5KHZ, HARMONY_SR_6KHZ, HARMONY_SR_8KHZ,
+	HARMONY_SR_9KHZ, HARMONY_SR_11KHZ, HARMONY_SR_16KHZ,
+	HARMONY_SR_18KHZ, HARMONY_SR_22KHZ, HARMONY_SR_27KHZ,
+	HARMONY_SR_32KHZ, HARMONY_SR_33KHZ, HARMONY_SR_37KHZ,
+	HARMONY_SR_44KHZ, HARMONY_SR_48KHZ
+};
+
 /* snd_card_harmony_rate_bits
  * @rate:	index of current data rate in list
  * returns: harmony hex code for registers
@@ -273,26 +284,9 @@ static unsigned int snd_card_harmony_rat
 	unsigned int idx;
 	
 	for (idx = 0; idx <= RATES; idx++)
-		if (snd_card_harmony_rates[idx] == rate) break;
-	
-	switch (idx) {
-		case 0: return HARMONY_SR_5KHZ;
-		case 1: return HARMONY_SR_6KHZ;
-		case 2: return HARMONY_SR_8KHZ;
-		case 3: return HARMONY_SR_9KHZ;
-		case 4: return HARMONY_SR_11KHZ;
-		case 5: return HARMONY_SR_16KHZ;
-		case 6: return HARMONY_SR_18KHZ;
-		case 7: return HARMONY_SR_22KHZ;
-		case 8: return HARMONY_SR_27KHZ;
-		case 9: return HARMONY_SR_32KHZ;
-		case 10: return HARMONY_SR_33KHZ;
-		case 11: return HARMONY_SR_37KHZ;
-		case 12: return HARMONY_SR_44KHZ;
-		case 13: return HARMONY_SR_48KHZ;
-		default:  /* fallback */
-				return HARMONY_SR_44KHZ;
-	}
+		if (snd_card_harmony_rates[idx] == rate)
+			return rate_bits[idx];
+	return HARMONY_SR_44KHZ; /* fallback */
 }
 
 /*
@@ -317,27 +311,6 @@ void snd_harmony_update_control(snd_card
 }
 
 /*
- * silence a buffer
- * XXX: alsa could probably do this by itself
- * XXX: memset hpmc, commented.
- */
-
-void snd_harmony_silence(snd_card_harmony_t *harmony,
-		void *addr, int length)
-{
-	u8 silence_char;
-	
-	switch(harmony->data_format) {
-			case HARMONY_DF_8BIT_ULAW: silence_char = 0x55; break;
-			case HARMONY_DF_8BIT_ALAW: silence_char = 0xff; break;
-			case HARMONY_DF_16BIT_LINEAR:
-			default:
-									   silence_char = 0;
-	}
-	//memset(addr, silence_char, length);
-}
-
-/*
  * interruption controls routines
  */
 
@@ -385,9 +358,9 @@ static int snd_card_harmony_interrupt(in
 			snd_pcm_period_elapsed(harmony->playback_substream);
 			harmony->ply_total++;
 		} else {
-			gsc_writel(harmony->silence_dma + 
-					(HARMONY_BUF_SIZE*harmony->silence_count),
-					hpa+REG_PNXTADD);
+			gsc_writel(harmony->silence_dma.addr + 
+				   (HARMONY_BUF_SIZE*harmony->silence_count),
+				   hpa+REG_PNXTADD);
 			harmony->silence_count++;
 			harmony->silence_count %= SILENCE_BUFS;
 		}
@@ -406,9 +379,9 @@ static int snd_card_harmony_interrupt(in
 			harmony->cap_total++;
 		} else {
 			/* graveyard buffer */
-			gsc_writel(harmony->graveyard_dma +
-						(HARMONY_BUF_SIZE*harmony->graveyard_count),
-						hpa+REG_RNXTADD);
+			gsc_writel(harmony->graveyard_dma.addr +
+				   (HARMONY_BUF_SIZE*harmony->graveyard_count),
+				   hpa+REG_RNXTADD);
 			harmony->graveyard_count++;
 			harmony->graveyard_count %= GRAVEYARD_BUFS;
 		}
@@ -465,26 +438,8 @@ static void __devinit snd_harmony_proc_i
 {
 	snd_info_entry_t *entry;
 	
-	if ((entry = snd_info_create_card_entry(harmony->card, "harmony", harmony->card->proc_root)) != NULL) {
-		entry->content = SNDRV_INFO_CONTENT_TEXT;
-		entry->private_data = harmony;
-		entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
-		entry->c.text.read_size = 2048;	 /* should be enough */
-		entry->c.text.read = snd_harmony_proc_read;
-		if (snd_info_register(entry) < 0) {
-			snd_info_free_entry(entry);
-			entry = NULL;
-		}
-	}
-	harmony->proc_entry = entry;
-}
-
-static void snd_harmony_proc_done(snd_card_harmony_t *harmony)
-{
-	if (harmony->proc_entry) {
-		snd_info_unregister(harmony->proc_entry);
-		harmony->proc_entry = NULL;
-	}
+	if (! snd_card_proc_new(harmony->card, "harmony", &entry))
+		snd_info_set_text_ops(entry, harmony, 2048, snd_harmony_proc_read);
 }
 
 /* 
@@ -563,6 +518,30 @@ static int snd_card_harmony_capture_trig
 	return 0;
 }
 
+/* set data format */
+static int snd_harmony_set_data_format(snd_card_harmony_t *harmony, int pcm_format)
+{
+	int old_format = harmony->data_format;
+	int new_format = old_format;
+	switch (pcm_format) {
+	case SNDRV_PCM_FORMAT_S16_BE:
+		new_format = HARMONY_DF_16BIT_LINEAR;
+		break;
+	case SNDRV_PCM_FORMAT_A_LAW:
+		new_format = HARMONY_DF_8BIT_ALAW;
+		break;
+	case SNDRV_PCM_FORMAT_MU_LAW:
+		new_format = HARMONY_DF_8BIT_ULAW;
+		break;
+	}
+	/* re-initialize silence buffer if needed */
+	if (old_format != new_format)
+		snd_pcm_format_set_silence(pcm_format, harmony->silence_dma.area,
+					   (HARMONY_BUF_SIZE * SILENCE_BUFS * 8) / snd_pcm_format_width(pcm_format));
+
+	return new_format;
+}
+
 static int snd_card_harmony_playback_prepare(snd_pcm_substream_t * substream)
 {
 	snd_card_harmony_t *harmony = snd_pcm_substream_chip(substream);
@@ -577,12 +556,13 @@ static int snd_card_harmony_playback_pre
 	harmony->sample_rate = snd_card_harmony_rate_bits(runtime->rate);
 
 	/* data format */
-	if (snd_pcm_format_width(runtime->format) == 16) harmony->data_format = HARMONY_DF_16BIT_LINEAR;
-	else harmony->data_format = HARMONY_DF_8BIT_ULAW;
-	
+	harmony->data_format = snd_harmony_set_data_format(haromny, runtime->format);
+
 	/* number of channels */
-	if (runtime->channels == 2) harmony->stereo_select = HARMONY_SS_STEREO;
-	else harmony->stereo_select = HARMONY_SS_MONO;
+	if (runtime->channels == 2)
+		harmony->stereo_select = HARMONY_SS_STEREO;
+	else
+		harmony->stereo_select = HARMONY_SS_MONO;
 	
 	DPRINTK(KERN_INFO PFX "Playback_prepare, sr=%d(%x), df=%x, ss=%x hpa=%lx\n", runtime->rate,
 				harmony->sample_rate, harmony->data_format, harmony->stereo_select, harmony->hpa);
@@ -607,12 +587,13 @@ static int snd_card_harmony_capture_prep
 	harmony->sample_rate = snd_card_harmony_rate_bits(runtime->rate);
 	
 	/* data format */
-	if (snd_pcm_format_width(runtime->format) == 16) harmony->data_format = HARMONY_DF_16BIT_LINEAR;
-	else harmony->data_format = HARMONY_DF_8BIT_ULAW;
+	harmony->data_format = snd_harmony_set_data_format(haromny, runtime->format);
 	
 	/* number of channels */
-	if (runtime->channels == 1) harmony->stereo_select = HARMONY_SS_MONO;
-	else if (runtime->channels == 2) harmony->stereo_select = HARMONY_SS_STEREO;
+	if (runtime->channels == 1)
+		harmony->stereo_select = HARMONY_SS_MONO;
+	else if (runtime->channels == 2)
+		harmony->stereo_select = HARMONY_SS_STEREO;
 		
 	snd_harmony_update_control(harmony);
 	harmony->format_initialized = 1;
@@ -709,13 +690,6 @@ static int snd_card_harmony_playback_ope
 	snd_pcm_runtime_t *runtime = substream->runtime;
 	int err;
 	
-	/*
-	 * harmony is not "real" pci, but we need a pci_dev
-	 * to alloc PCI DMA pages
-	 */
-	substream->runtime->dma_private = harmony->fake_pci_dev;
-//	substream->dma_type = SNDRV_PCM_DMA_TYPE_PCI;
-	
 	harmony->playback_substream = substream;
 	runtime->hw = snd_card_harmony_playback;
 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
@@ -732,14 +706,6 @@ static int snd_card_harmony_capture_open
 	snd_pcm_runtime_t *runtime = substream->runtime;
 	int err;
 	
-	
-	/*
-	 * harmony is not "real" pci, but we need a pci_dev
-	 * to alloc PCI DMA pages
-	 */
-	substream->runtime->dma_private = harmony->fake_pci_dev;
-//	substream->dma_type = SNDRV_PCM_DMA_TYPE_PCI;
-
 	harmony->capture_substream = substream;
 	runtime->hw = snd_card_harmony_capture;
 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
@@ -752,7 +718,6 @@ static int snd_card_harmony_capture_open
 static int snd_card_harmony_playback_close(snd_pcm_substream_t * substream)
 {
 	snd_card_harmony_t *harmony = snd_pcm_substream_chip(substream);
-	snd_pcm_lib_free_pages(substream);
 	
 	harmony->playback_substream = NULL;
 	harmony->ply_size 			= 0;
@@ -769,8 +734,6 @@ static int snd_card_harmony_capture_clos
 {
 	snd_card_harmony_t *harmony = snd_pcm_substream_chip(substream);
 	
-	snd_pcm_lib_free_pages(substream);
-	
 	harmony->capture_substream = NULL;
 	harmony->cap_size 			= 0;
 	harmony->cap_buf			= 0;
@@ -785,12 +748,11 @@ static int snd_card_harmony_capture_clos
 static int snd_card_harmony_hw_params(snd_pcm_substream_t *substream, 
 	                   snd_pcm_hw_params_t * hw_params)
 {
-	snd_pcm_runtime_t *runtime = substream->runtime;
 	int err;
 	
 	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 	DPRINTK(KERN_INFO PFX "HW Params returned %d, dma_addr %lx\n", err,
-			(unsigned long)runtime->dma_addr);
+			(unsigned long)substream->runtime->dma_addr);
 	return err;
 }
 
@@ -847,15 +809,19 @@ static int snd_card_harmony_pcm_init(snd
 	harmony->pcm = pcm;
 	
 	/* initialize graveyard buffer */
-	harmony->dma_dev.type = SNDRV_DMA_TYPE_PCI;
-	harmony->dma_dev.dev = snd_dma_pci_data(harmony->fake_pci_dev); 
-	harmony->graveyard_addr = snd_dma_alloc_pages(&chip->dma_dev,
-			HARMONY_BUF_SIZE*GRAVEYARD_BUFS, &harmony->graveyard_dma);
+	harmony->dma_dev.type = SNDRV_DMA_TYPE_DEV;
+	harmony->dma_dev.dev = &harmony->pa_dev->dev;
+	err = snd_dma_alloc_pages(&harmony->dma_dev, HARMONY_BUF_SIZE*GRAVEYARD_BUFS,
+				  &harmony->graveyard_dma);
+	if (err < 0)
+		return err;
 	harmony->graveyard_count = 0;
 	
 	/* initialize silence buffers */
-	harmony->silence_addr = snd_dma_alloc_pages(&chip->dma_dev,
-			HARMONY_BUF_SIZE*SILENCE_BUFS, &harmony->silence_dma);
+	err = snd_dma_alloc_pages(&harmony->dma_dev, HARMONY_BUF_SIZE*SILENCE_BUFS,
+				  &harmony->silence_dma);
+	if (err < 0)
+		return err;
 	harmony->silence_count = 0;
 
 	harmony->ply_stopped = harmony->cap_stopped = 1;
@@ -865,8 +831,8 @@ static int snd_card_harmony_pcm_init(snd
 	harmony->graveyard_count = 0;
 	
 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-					      snd_dma_pci_data(harmony->fake_pci_dev),
-					      64 * 1024, 128 * 1024);
+					      &harmony->pa_dev->dev,
+					      MAX_BUFFER_SIZE, MAX_BUFFER_SIZE);
 
 	return 0;
 }
@@ -963,7 +929,7 @@ HARMONY_VOLUME("Master Volume", 20, 20, 
 HARMONY_VOLUME("PCM Playback Volume", 6, 0, 0x3f, 1),
 };
 
-static void snd_harmony_reset_codec(snd_card_harmony_t *harmony)
+static void __init snd_harmony_reset_codec(snd_card_harmony_t *harmony)
 {
  	snd_harmony_wait_cntl(harmony);
 	gsc_writel(1, harmony->hpa+REG_RESET);
@@ -985,7 +951,7 @@ static void __init snd_harmony_mixer_res
 }
 
 
-int __init snd_card_harmony_mixer_init(snd_card_harmony_t *harmony)
+static int __init snd_card_harmony_mixer_init(snd_card_harmony_t *harmony)
 {
 	snd_card_t *card = harmony->card;
 	int idx, err;
@@ -1009,10 +975,11 @@ static int snd_card_harmony_create(snd_c
 	
 	harmony->card = card;
 	
+	harmony->pa_dev = pa_dev;
+
 	/* Set the HPA of harmony */
 	harmony->hpa = pa_dev->hpa;
 	
-
 	harmony->irq = pa_dev->irq;
 	if (!harmony->irq) {
 		printk(KERN_ERR PFX "no irq found\n");
@@ -1038,8 +1005,6 @@ static int snd_card_harmony_create(snd_c
 		return -EBUSY;
 	}
 	
-	/* a fake pci_dev is needed for pci_* functions under ccio */
-	harmony->fake_pci_dev = ccio_get_fake(pa_dev);
 	return 0;
 }
 	
@@ -1050,7 +1015,7 @@ static int __init snd_card_harmony_probe
 	snd_card_t *card;
 	int err;
 	
-    if (dev >= SNDRV_CARDS)
+	if (dev >= SNDRV_CARDS)
 		return -ENODEV;
 	if (!enable[dev]) {
 		dev++;
@@ -1064,6 +1029,8 @@ static int __init snd_card_harmony_probe
 	if (card == NULL)
 		return -ENOMEM;
 	chip = (struct snd_card_harmony *)card->private_data;
+	spin_lock_init(&chip->control_lock);
+	spin_lock_init(&chip->mixer_lock);
 	
 	if ((err = snd_card_harmony_create(card, pa_dev, chip)) < 0) {
 		printk(KERN_ERR PFX "Creation failed\n");
@@ -1144,7 +1111,6 @@ static void __exit alsa_card_harmony_exi
 		{	
 			DPRINTK(KERN_INFO PFX "Freeing card %d\n", idx);
 			harmony = snd_harmony_cards[idx]->private_data;
-			snd_harmony_proc_done(harmony);
 			free_irq(harmony->irq, snd_card_harmony_interrupt);
 			printk(KERN_INFO PFX "Card unloaded %d, irq=%d\n", idx, harmony->irq);
 			snd_card_free(snd_harmony_cards[idx]);

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pa,

I just rebooted my 712/100 with a 2.6.6-pa2 kernel and my keyboard
(PS/2) no longer works The keyboard works in firmware, as I have to
issue "bo lan" to boot my kernel. The keyboard doesn't work in both the
console and X.

Anyone running a 712/100 in 2.6.6 without issues?

Maybe I should just purge my .config and see what happens.

*shrug*

c.

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From: "Brian Barber" <brianbarber@myrealbox.com>
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Subject: Re: [parisc-linux] 712/100 keyboard not working in 2.6.6-pa2?
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I'm running a 712/80 at home.  I'll try a new kernel in the next couple of =
days and let you know.

BB

-----Original Message-----
From: Carlos O'Donell <carlos@baldric.uwo.ca>
To: parisc-linux@lists.parisc-linux.org
Date: Tue, 18 May 2004 09:06:29 -0400
Subject: [parisc-linux] 712/100 keyboard not working in 2.6.6-pa2?


pa,

I just rebooted my 712/100 with a 2.6.6-pa2 kernel and my keyboard
(PS/2) no longer works The keyboard works in firmware, as I have to
issue "bo lan" to boot my kernel. The keyboard doesn't work in both the
console and X.

Anyone running a 712/100 in 2.6.6 without issues?

Maybe I should just purge my .config and see what happens.

*shrug*

c.

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On Tue, May 18, 2004 at 02:49:30PM -0300, Steve Bromwich wrote:
> Does anyone have any figures on how much power it really draws?

sorry no

> According to the sticker on the back it draws 9.2A@100V which sounds...
>  excessive, even with the 5
> drives in there. If I yank out some of the unnecessary cards (SCSI2 card,
> display card, what looks like a token ring card) will that make a
> noticeable difference to the draw?

I doubt scsi/token ring will draw that much power.
CPU, memory, disk drives, and high perf gfx cards are typically
consuming the most power.

grant
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Subject: [parisc-linux] Success! [Was: SCSI hang in 2.6.6-pa4]
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On Fri, 21 May 2004, Joel Soete wrote:

> >>>[...]
> >>>I've got a J5000 that appeared to work mostly OK under 2.4.25-pa.
> >>>I just put 2.6.6-pa4 on there and when I boot, the machine hangs:
> >>> [...]
> >>umm 32bit or 64bit kernel?
> >
> > 32 bit?  I assume.  If it was 64 bit it wasn't on purpose.  Under CPU
> > selection I chose the PA7000 option (or whatever the first one on the
> > list was).
> >
> >
> >>>[...]
> >>>sym0: <896> rev 0x4 at pci 0000:00:0f.0 irq 65
> >>>sym0: No NVRAM, ID 7, Fast-40, SE, parity checking
> >>>sym0: SCSI BUS has been reset.
> >>>scsi0 : sym-2.1.18j
> >>>sym0:0:0: ABORT operation started.
> >>>sym0:0:0: ABORT operation timed-out.
> >>>sym0:0:0: DEVICE RESET operation started.
> >>>sym0:0:0: DEVICE RESET operation timed-out.
> >>>sym0:0:0: BUS RESET operation started.
> >>>sym0:0:0: BUS RESET operation timed-out.
> >>>sym0:0:0: HOST RESET operation started.
> >>>sym0: SCSI BUS has been reset.
> >>><hang>
> >>>
> > [...]
> well ok, may be try first the same default config file
> (c3000_defconfig) as I decribe above (may be just unselect
> 64bit option in
> CPU sub-menu with 'make menuconfig' if you don't want 64bit)
> and certainly not smp (smp is not yet ready for 2.6 on hppa) !!!

I was about to try the c3000_defconfig but on a whim I turned off the
SMP option, turned on SCSI verbose error logging for good measure,
recompiled, and presto!  It appears to work.  This leaves me with two
questions:

1) No SMP?  <pout>I want my SMP!</pout> :)  ... or in the form of a
question: is this something that's going to work maybe in a bit but not
for now, or is it just broken beyond all patience?  Just wondering.
Come to think of it, I had SMP turned on with the 2.4.25-pa0 kernel and
it appeared to work OK, but I was getting some odd data corruption.
Maybe that was the cause?  Are you wondering how I've gone from two
questions to four while I'm still on question 1?  :)

2) I'm a bit confused on the whole 64 bit thing.  I've been selecting
the PA7000 CPU option on kernel configs for the various machines I have
(j5k, c3k, c360) because when I picked PA8*00 I was getting lots of
weird errors regarding modules - I assumed that was an issue with 64
bits, and I also was under the impression from recent posts that 64 bit
kernels aren't quite right yet.  Right?  Or is that just userland?
Granted I don't think I have any real need for a 64 bit kernel, but just
wondering.  What I really want is one modular kernel config I can use
for the three machines.


Thanks again everyone for the help.  Glad to have the machine running
again.
--
Elliott
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On Fri, May 21, 2004 at 05:23:20PM -0500, Elliott Potter wrote:
> 1) No SMP?  <pout>I want my SMP!</pout> :)
>   ... or in the form of a
> question: is this something that's going to work maybe in a bit but not
> for now, or is it just broken beyond all patience?  Just wondering.

It should work in the "near future".
As usual, 32-bit SMP seems to work but it's not well tested.

> 2) I'm a bit confused on the whole 64 bit thing.  I've been selecting
> the PA7000 CPU option on kernel configs for the various machines I have
> (j5k, c3k, c360) because when I picked PA8*00 I was getting lots of
> weird errors regarding modules - I assumed that was an issue with 64
> bits, and I also was under the impression from recent posts that 64 bit
> kernels aren't quite right yet.  Right?

64-bit SMP didn't work for me. Otherwise, 64-bit UP works fine.
But none of the workstations you listed above require 64-bit
and thus I don't reccomend it unless you have more than 4GB RAM.

>  Or is that just userland?
> Granted I don't think I have any real need for a 64 bit kernel, but just
> wondering.  What I really want is one modular kernel config I can use
> for the three machines.

The main differences between c360 (ccio+dino) and j5k/c3k (sba+lba drivers)
are not available as modules. Just build them all into one kernel
and it will work fine.

grant
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On Thu, 20 May 2004, Joel Soete wrote:

> Hello Elliott,
>
> Elliott Potter wrote:
> > Hello all,
> >
> > I've got a J5000 that appeared to work mostly OK under 2.4.25-pa.
> >
>
> J5000 is of the b2k, c3k family isn't it?
> (read on openpa:"...They are basically the bigger brothers of the
> C3000/C3600 et al, featuring better expandability. ...")

They appear to be similar.  Maybe someone can run lspci -v on a c3k and
see what you get for the SCSI host adapter ... I get

00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53c896 (rev 04)
   Subsystem: LSI Logic / Symbios Logic: Unknown device 1000
   Flags: bus master, medium devsel, latency 255, IRQ 65
   I/O ports at 0900 [size=256]
   Memory at f4005000 (64-bit, non-prefetchable) [size=1K]
   Memory at f4002000 (64-bit, non-prefetchable) [size=8K]
   Capabilities: [40] Power Management version 1

00:0f.1 SCSI storage controller: LSI Logic / Symbios Logic 53c896 (rev 04)
   Subsystem: LSI Logic / Symbios Logic: Unknown device 1000
   Flags: bus master, medium devsel, latency 255, IRQ 65
   I/O ports at 0900 [size=256]
   Memory at f4005000 (64-bit, non-prefetchable) [size=1K]
   Memory at f4002000 (64-bit, non-prefetchable) [size=8K]
   Capabilities: [40] Power Management version 1


> > I just put 2.6.6-pa4 on there and when I boot, the machine hangs:
> >
> umm 32bit or 64bit kernel?

32 bit?  I assume.  If it was 64 bit it wasn't on purpose.  Under CPU
selection I chose the PA7000 option (or whatever the first one on the
list was).

> Personaly, I just test 2.6.6-pa2 (32 and 64 bits) on my b2k without
> pb but with the c3k default config file that I found under
> arch/parisc/configs/c3000_defconfig. (make mrproper then) I copy this
> as .config and 'make oldconfig' before 'make vmlinux' (default
> 64bits).
> Did you used the same?

I fiddled with the config a bit, but not a lot.  I did not use 64 bits.
Then make vmlinux, etc.

> > [...]
> > sym0: <896> rev 0x4 at pci 0000:00:0f.0 irq 65
> > sym0: No NVRAM, ID 7, Fast-40, SE, parity checking
> > sym0: SCSI BUS has been reset.
> > scsi0 : sym-2.1.18j
> > sym0:0:0: ABORT operation started.
> > sym0:0:0: ABORT operation timed-out.
> > sym0:0:0: DEVICE RESET operation started.
> > sym0:0:0: DEVICE RESET operation timed-out.
> > sym0:0:0: BUS RESET operation started.
> > sym0:0:0: BUS RESET operation timed-out.
> > sym0:0:0: HOST RESET operation started.
> > sym0: SCSI BUS has been reset.
> > <hang>
> >
>
> > ... any hints on this?  Could it be related to the TCQ problem someone
> > had with the 53c700 a few months ago?
> >
> Do you see this one listed in your found device list?

Nope.  Different chip, and also (as I read a bit more about it since my
first post) a different brand of hard drive, which may make a
difference.  Ah well.

> But it is a strange coincidence, the description of your pb is similar
> to the one that Stephano encounter with its c3k
> (http://lists.debian.org/debian-hppa/2004/05/msg00066.html) but with 2.4.
> So it would be surprising that it is the same cause; never the less if
> you used usb kbd/mouse can you try a serial console?

In fact there is no keyboard/mouse/head on the machine, so if it's not
going to boot I have to use serial console to see the messages.
--
Elliott
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On Sat, May 22, 2004 at 08:56:00PM +0000, Joel Soete wrote:
> Yep, sorry just a bit lazy but I was very surprise by this advise?

np. thanks.

> >>imho if you don't have hw raid array (no clue about hp2100 sorry) why 
> >>not building a sw raid5 for an economical and robust disk array (with 
> >>severall scsi controler it is even possible to play with striping: raid0 
> >>iirc) which you include in a vg that you can easily manage with 
> >>different lv?
> >
> >mdadm will allow one to build raid0/1/3/5 also.
> > 
> >
> yes but my question was in fact about lvm above sw raid array: I don't 
> have any more the opportunity to test it?

You are welcome to use LVM. People I trust tell me not to use it.
And my experience with HPUX LVM has left a bad taste.

Is there something you want to do with LVM that can't be
done with MD devices? (and using mdadm to manage them)
I'm just curious since mdadm seems to work nicely.

> (the only one I had some time ago was an old fc scsi disk array with the 
> n4k and its hp tachion fc interface but you know the pb I encounter ;)

yes - I vaguely remember. I depend on the mailing list
archive to "remember" deails though.

thanks,
grant
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FYI.
2.6.6-pa4 boots/works fine on my C3600.

And I like the new palo 1.5 - kudos again Paul/James!

grant
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Xref: news.gmane.org gmane.linux.ports.parisc:21645

On my headless c3k I get:

0000:00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53c896 
(rev 04)
         Subsystem: LSI Logic / Symbios Logic: Unknown device 1000
         Flags: bus master, medium devsel, latency 255, IRQ 65
         I/O ports at 0900
         Memory at f4005000 (64-bit, non-prefetchable) [size=1K]
         Memory at f4002000 (64-bit, non-prefetchable) [size=8K]
         Capabilities: [40] Power Management version 1

0000:00:0f.1 SCSI storage controller: LSI Logic / Symbios Logic 53c896 
(rev 04)
         Subsystem: LSI Logic / Symbios Logic: Unknown device 1000
         Flags: bus master, medium devsel, latency 255, IRQ 65
         I/O ports at 0800
         Memory at f4004000 (64-bit, non-prefetchable) [size=1K]
         Memory at f4000000 (64-bit, non-prefetchable) [size=8K]
         Capabilities: [40] Power Management version 1

During boot-up:

kernel: sym0: <896> rev 0x4 at pci 0000:00:0f.0 irq   65
kernel: sym0: No NVRAM, ID 7, Fast-40, SE, parity checking
kernel: sym0: SCSI BUS has been reset.
kernel: sym0: SCSI BUS mode change from SE to SE.
kernel: sym0: SCSI BUS has been reset.
kernel: scsi0 : sym-2.1.18i
kernel: sym1: <896> rev 0x4 at pci 0000:00:0f.1 irq 65
kernel: sym1: No NVRAM, ID 7, Fast-40, LVD, parity checking
kernel: sym1: SCSI BUS has been reset.
kernel: scsi1 : sym-2.1.18i
kernel:   Vendor: QUANTUM   Model: ATLAS10K-9LVD     Rev: HP06
hpux kernel:   Type:   Direct-Access            ANSI SCSI revision: 03
kernel: sym1:6:0: tagged command queuing enabled, command queue depth 16.
kernel: st: Version 20040226, fixed bufsize 32768, s/g segs 256
kernel: sym1:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25.0 ns, offset 31)
kernel: SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
kernel: SCSI device sda: drive cache: write back

This is with 2.6.6-rc1-pa0, haven't had time to upgrade my kernel lately.


Elliott Potter wrote:

 > On Thu, 20 May 2004, Joel Soete wrote:
 >
 >
 >> Hello Elliott,
 >>
 >> Elliott Potter wrote:
 >>
 >>> Hello all,
 >>>
 >>> I've got a J5000 that appeared to work mostly OK under 2.4.25-pa.
 >>>
 >>
 >> J5000 is of the b2k, c3k family isn't it?
 >> (read on openpa:"...They are basically the bigger brothers of the
 >> C3000/C3600 et al, featuring better expandability. ...")
 >
 >
 >
 > They appear to be similar.  Maybe someone can run lspci -v on a c3k and
 > see what you get for the SCSI host adapter ... I get
 >
 > 00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53c896 
(rev 04)
 >    Subsystem: LSI Logic / Symbios Logic: Unknown device 1000
 >    Flags: bus master, medium devsel, latency 255, IRQ 65
 >    I/O ports at 0900 [size=256]
 >    Memory at f4005000 (64-bit, non-prefetchable) [size=1K]
 >    Memory at f4002000 (64-bit, non-prefetchable) [size=8K]
 >    Capabilities: [40] Power Management version 1
 >
 > 00:0f.1 SCSI storage controller: LSI Logic / Symbios Logic 53c896 
(rev 04)
 >    Subsystem: LSI Logic / Symbios Logic: Unknown device 1000
 >    Flags: bus master, medium devsel, latency 255, IRQ 65
 >    I/O ports at 0900 [size=256]
 >    Memory at f4005000 (64-bit, non-prefetchable) [size=1K]
 >    Memory at f4002000 (64-bit, non-prefetchable) [size=8K]
 >    Capabilities: [40] Power Management version 1
 >
 >
 >
 >>> I just put 2.6.6-pa4 on there and when I boot, the machine hangs:
 >>>
 >>
 >> umm 32bit or 64bit kernel?
 >
 >
 >
 > 32 bit?  I assume.  If it was 64 bit it wasn't on purpose.  Under CPU
 > selection I chose the PA7000 option (or whatever the first one on the
 > list was).
 >
 >
 >> Personaly, I just test 2.6.6-pa2 (32 and 64 bits) on my b2k without
 >> pb but with the c3k default config file that I found under
 >> arch/parisc/configs/c3000_defconfig. (make mrproper then) I copy this
 >> as .config and 'make oldconfig' before 'make vmlinux' (default
 >> 64bits).
 >> Did you used the same?
 >
 >
 >
 > I fiddled with the config a bit, but not a lot.  I did not use 64 bits.
 > Then make vmlinux, etc.
 >
 >
 >>> [...]
 >>> sym0: <896> rev 0x4 at pci 0000:00:0f.0 irq 65
 >>> sym0: No NVRAM, ID 7, Fast-40, SE, parity checking
 >>> sym0: SCSI BUS has been reset.
 >>> scsi0 : sym-2.1.18j
 >>> sym0:0:0: ABORT operation started.
 >>> sym0:0:0: ABORT operation timed-out.
 >>> sym0:0:0: DEVICE RESET operation started.
 >>> sym0:0:0: DEVICE RESET operation timed-out.
 >>> sym0:0:0: BUS RESET operation started.
 >>> sym0:0:0: BUS RESET operation timed-out.
 >>> sym0:0:0: HOST RESET operation started.
 >>> sym0: SCSI BUS has been reset.
 >>> <hang>
 >>>
 >>> ... any hints on this?  Could it be related to the TCQ problem someone
 >>> had with the 53c700 a few months ago?
 >>>
 >>
 >> Do you see this one listed in your found device list?
 >
 >
 >
 > Nope.  Different chip, and also (as I read a bit more about it since my
 > first post) a different brand of hard drive, which may make a
 > difference.  Ah well.
 >
 >
 >> But it is a strange coincidence, the description of your pb is similar
 >> to the one that Stephano encounter with its c3k
 >> (http://lists.debian.org/debian-hppa/2004/05/msg00066.html) but with 
2.4.
 >> So it would be surprising that it is the same cause; never the less if
 >> you used usb kbd/mouse can you try a serial console?
 >
 >
 >
 > In fact there is no keyboard/mouse/head on the machine, so if it's not
 > going to boot I have to use serial console to see the messages.
 > --
 > Elliott
 > _______________________________________________
 > parisc-linux mailing list
 > parisc-linux@lists.parisc-linux.org
 > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


Elliott Potter wrote:

> On Thu, 20 May 2004, Joel Soete wrote:
> 
> 
>>Hello Elliott,
>>
>>Elliott Potter wrote:
>>
>>>Hello all,
>>>
>>>I've got a J5000 that appeared to work mostly OK under 2.4.25-pa.
>>>
>>
>>J5000 is of the b2k, c3k family isn't it?
>>(read on openpa:"...They are basically the bigger brothers of the
>>C3000/C3600 et al, featuring better expandability. ...")
> 
> 
> They appear to be similar.  Maybe someone can run lspci -v on a c3k and
> see what you get for the SCSI host adapter ... I get
> 
> 00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53c896 (rev 04)
>    Subsystem: LSI Logic / Symbios Logic: Unknown device 1000
>    Flags: bus master, medium devsel, latency 255, IRQ 65
>    I/O ports at 0900 [size=256]
>    Memory at f4005000 (64-bit, non-prefetchable) [size=1K]
>    Memory at f4002000 (64-bit, non-prefetchable) [size=8K]
>    Capabilities: [40] Power Management version 1
> 
> 00:0f.1 SCSI storage controller: LSI Logic / Symbios Logic 53c896 (rev 04)
>    Subsystem: LSI Logic / Symbios Logic: Unknown device 1000
>    Flags: bus master, medium devsel, latency 255, IRQ 65
>    I/O ports at 0900 [size=256]
>    Memory at f4005000 (64-bit, non-prefetchable) [size=1K]
>    Memory at f4002000 (64-bit, non-prefetchable) [size=8K]
>    Capabilities: [40] Power Management version 1
> 
> 
> 
>>>I just put 2.6.6-pa4 on there and when I boot, the machine hangs:
>>>
>>
>>umm 32bit or 64bit kernel?
> 
> 
> 32 bit?  I assume.  If it was 64 bit it wasn't on purpose.  Under CPU
> selection I chose the PA7000 option (or whatever the first one on the
> list was).
> 
> 
>>Personaly, I just test 2.6.6-pa2 (32 and 64 bits) on my b2k without
>>pb but with the c3k default config file that I found under
>>arch/parisc/configs/c3000_defconfig. (make mrproper then) I copy this
>>as .config and 'make oldconfig' before 'make vmlinux' (default
>>64bits).
>>Did you used the same?
> 
> 
> I fiddled with the config a bit, but not a lot.  I did not use 64 bits.
> Then make vmlinux, etc.
> 
> 
>>>[...]
>>>sym0: <896> rev 0x4 at pci 0000:00:0f.0 irq 65
>>>sym0: No NVRAM, ID 7, Fast-40, SE, parity checking
>>>sym0: SCSI BUS has been reset.
>>>scsi0 : sym-2.1.18j
>>>sym0:0:0: ABORT operation started.
>>>sym0:0:0: ABORT operation timed-out.
>>>sym0:0:0: DEVICE RESET operation started.
>>>sym0:0:0: DEVICE RESET operation timed-out.
>>>sym0:0:0: BUS RESET operation started.
>>>sym0:0:0: BUS RESET operation timed-out.
>>>sym0:0:0: HOST RESET operation started.
>>>sym0: SCSI BUS has been reset.
>>><hang>
>>>
>>>... any hints on this?  Could it be related to the TCQ problem someone
>>>had with the 53c700 a few months ago?
>>>
>>
>>Do you see this one listed in your found device list?
> 
> 
> Nope.  Different chip, and also (as I read a bit more about it since my
> first post) a different brand of hard drive, which may make a
> difference.  Ah well.
> 
> 
>>But it is a strange coincidence, the description of your pb is similar
>>to the one that Stephano encounter with its c3k
>>(http://lists.debian.org/debian-hppa/2004/05/msg00066.html) but with 2.4.
>>So it would be surprising that it is the same cause; never the less if
>>you used usb kbd/mouse can you try a serial console?
> 
> 
> In fact there is no keyboard/mouse/head on the machine, so if it's not
> going to boot I have to use serial console to see the messages.
> --
> Elliott
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 

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From - Thu Nov 08 21:32:04 2018
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Subject: Re: [parisc-linux] K460
Date: Fri, 21 May 2004 08:43:48 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:21646

Hello,

mxdog wrote:
> Hello
> 
> I'm trying to make linux work on my K460 box. I'm an old dog ...a.k.a. z80 days (8 bit)...so I'm not a kernel hacker, and don't want to be, but I can write code if I'm absolutely forced to ( takes lot time learn the machines heart and soul...got past that with my commodore 64 and a few others) ..I have 20-9 gig drives on this machine that I would like to use for web page serving in the company,ftp ...mostly me...and inter-company and file storage/backup,email..possibly other stuff...like process control...maybe point of sale....the thing is this size company and the price we got the machine for cant beat it..this will be a perfect platform ( linux) and the hardware and software too is cheap ..LOL deliver us from evil...a.k.a. windows.
> 

Welcome, I am the same old dog so I try to contribute with test as relevant as possible to help hackers as afar as I can ;)

> OK LET ME MAKE A STATEMENT: I HATE HP-UX : been 5 weeks night and day trying to make that OS talk to me and make it do something useful  and all I ever seem to do is reinstall the system...ok enough said on that!
> 
umm we had in production some K4x0 (3 or 4) running hpux 10.20 without pb even with fc addon card on core io ;). (unfortunately I 
don't have time to take the opportunity to test linux with this box ;( )

> I can live in linux....been in there since 386 5.2 redhat....tried to make company I worked for go that way in 1985(Unix) ...but Bill got in the way...talent stealing shit he is. Ok enough politics.
> 
> here is my problem: I really have no idea what I'm supposed to download,make CD's and make my box work. hppa is supposed to be supported in 3.0 but I spend 3 days downloading all 7 CD's (ISO's) 3.0r2 and first load got kernel error...no detail..next email...
> 
Unfortunately the woody cd 3.0r2 was not well tested and there are many reports of install failure.
So generally it is recommended to try the new sarge debian-install netinstall-cd available at:
<http://cdimage.debian.org/pub/cdimage-testing/sarge_d-i/hppa/current/sarge-hppa-netinst.iso>

or the previous netinstall cd:
<http://www.pateam.org/cd-images/testing/>

And the FAQ page: <http://www.parisc-linux.org/faq/index.html> explain in detail how to burn, check and boot your cd ;)
(iirc there are also special recommandation for K model and ttyB0 aka pdc_console usage)

> this is the site that does this...I need help, you guys need an idiots guide to what works on a k box ( LOL or any  box)....bad joke.....what version etc.....hell I took 2 hours tonight for I found a doc that said the PDC isn't in the file name anymore.
> 
> kernel crash is best I can do from memory: KERNEL FAULT: CODE26 .....stack something does not point to c30.....and then a kernel dump
> sorry this isn't a bug report just a cry for help I'll do much better if I get a response
>
umm iirc CODE26 is a data page fault (new kernels available on sarge and pateam iso are more recent so certainly fix the pb?)

hth,
	Joel

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Hi Grant,

> Sorry for taking so long with this...I was expecting someone else
> to reply and maybe missed it. A couple of minor problems with
> your patch:

Actually, I think I should have been more persistent.

> 1) it's for 2.4 and I'm personally trying to focus on 2.6 tree now.
>    2.6 is ready for prime time. It's been my desktop/ftp/http server
>    (C3600) for the past couple of monthes and has proven very stable.
> 
> 2) OSS is "decprecated" according to the 2.6 sound/Kconfig "Help".
>    Ie use ALSA instead.  See SOUND_PRIME option.
> 
> 3) if no one else wants to poke at the 2.4 harmony driver, I will
>    just apply your patches on good faith that it builds/works for you.
>    Have you tweaked it more since Feb?

I've made some improvements to the mixer code, but OSS's mixer interface
seems to be inadequate.  I can post a patch that improves the mixer code
slightly.  Other than that, I haven't changed anything.

Under high load, I tend to get panics when using the Harmony driver.
I've no idea why this is, and I wish I could understand the low-level
code a bit better.  This has nothing to do with my patches, though.
(I.e. it crashes with them and it crashes without them.)

http://lists.parisc-linux.org/pipermail/parisc-linux/2004-February/022432.html
is probably more of an issue for lkml.  (There's a slight mistake in
that patch - I forgot the closing */ on line 42.)

> In 2.6, ALSA harmony driver does NOT compile and that's disappointing.

I would love to try and help with the 2.6 drivers instead.
Unfortunatlely, I can't get 2.6 to boot.  This is all that I see:

Command line for kernel: 'root=/dev/sda6 HOME=/ console=tty0 sti=1
sti_font=VGA8x16 TERM=linux palo_kernel=2/vmlinux-2.6'
Selected kernel: /vmlinux-2.6 from partition 2
ELF32 executable
Entry 001001c0 first 00100000 n 3
Segment 0 load 00100000 size 2520296 mediaptr 0x1000
Segment 1 load 00368000 size 565504 mediaptr 0x269000
Segment 2 load 003f4000 size 581766 mediaptr 0x2f4000
Branching to kernel entry point 0x001001c0.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

I have another graphics card in this machine, so I'm wondering whether
that has anything to do with this.  FWIW, it's a 715/100.  I'm using the
prebuilt palinux-32-2.6.6-pa4_0-2_all.deb package from
http://cvs.parisc-linux.org/download/linux-2.6/

Thanks,
-- 
Stuart Brady
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Subject: Re: [parisc-linux] [PATCH] Harmony driver - Reject AFMT_S16_LE &
	Implement SNDCTL_DSP_CHANNELS
Date: Mon, 24 May 2004 19:30:01 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:21648

Hello,

Stuart Brady schrieb:

>>In 2.6, ALSA harmony driver does NOT compile and that's disappointing.
>>    
>>
as I (and others) wrote in a former mail ALSA harmony driver from ALSA 
cvs does compile. Just copy harmony.c from ALSA cvs into kernel source, 
fix two typos (haromny -> harmony) and voil... Boot log shows:

    Advanced Linux Sound Architecture Driver Version 1.0.4.
    Lasi Harmony Audio driver h/w id 20, rev. 18 at 0xf0104000, IRQ 82
    harmony: Successfully registered harmony pcm backend & mixer 0
    ALSA device list:
      #0: ALSA driver for LASI Harmony at h/w, id 20, rev. 18 hpa
    0xf0104000, IRQ 82

There is just one problem ;). One can't unmute  main volume. I can 
change volume settings using aumix, but they get canceled when closing 
aumix. But perhaps this can be fixed easily by s.o. who has the force... ;)

>
>I would love to try and help with the 2.6 drivers instead.
>Unfortunatlely, I can't get 2.6 to boot.  This is all that I see:
>
>Command line for kernel: 'root=/dev/sda6 HOME=/ console=tty0 sti=1
>sti_font=VGA8x16 TERM=linux palo_kernel=2/vmlinux-2.6'
>Selected kernel: /vmlinux-2.6 from partition 2
>ELF32 executable
>Entry 001001c0 first 00100000 n 3
>Segment 0 load 00100000 size 2520296 mediaptr 0x1000
>Segment 1 load 00368000 size 565504 mediaptr 0x269000
>Segment 2 load 003f4000 size 581766 mediaptr 0x2f4000
>Branching to kernel entry point 0x001001c0.  If this is the last
>message you see, you may need to switch your console.  This is
>a common symptom -- search the FAQ and mailing list at parisc-linux.org
>  
>
I also have an 715/100 with two graphics card and I'm using current cvs 
kernel (2.6.7-rc1-pa1). It works for me. My command line for the kernel is:
'root=/dev/sdb4 HOME=/ console=tty0 sti=1 sti_font=VGA8x16 TERM=linux 
palo_kernel=2/vmlinux'. I can also give you my .config if you are 
interested in.

>I have another graphics card in this machine, so I'm wondering whether
>that has anything to do with this.  FWIW, it's a 715/100.  I'm using the
>prebuilt palinux-32-2.6.6-pa4_0-2_all.deb package from
>http://cvs.parisc-linux.org/download/linux-2.6/
>
>Thanks,
>  
>
Thanks,
Ruediger
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Subject: Support for 2.4.x kernels on hppa
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Xref: news.gmane.org gmane.linux.ports.parisc:21649

Hi all,

I'd like to take an informal "survey" of what kernel versions people are
using....

For the last year or two, most of the kernel developers have been
focusing on the 2.5/2.6 kernels; as a result many bugs that were
presented in both 2.4 and 2.6 kernels have been only fixed in 2.6. This
is understandable given that there are only a few active parisc-linux
kernel developers.... moving foward it is becoming more difficult to
support the 2.4.x kernels, and we are finding that we need to put in
some not-so-nice workarounds in some userspace tools to cope with bugs
in the 2.4 kernel.

So, the question is, how many of you run parisc-linux on 2.4
"production" systems and "cannot" switch to 2.6? At last count there are
about 1200 registered parisc-linux users on the p-l website, and i know
at least some folks run parisc-linux on decent-sized clusters... so we 
definitely don't want to break things if people are using 2.4 actively 
on these systems and have legitimate reasons not to move to 2.6....

If you are one of those people who really care about 2.4 support, please
speak up now! 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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Subject: [parisc-linux] Re: Support for 2.4.x kernels on hppa
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Xref: news.gmane.org gmane.linux.ports.parisc:21650

Hi,

>I'd like to take an informal "survey" of what kernel versions people are
>using....

Mostly, 2.4.17, the debian default kernel or 2.4.25/6-pa*.

>For the last year or two, most of the kernel developers have been
>focusing on the 2.5/2.6 kernels; as a result many bugs that were
>presented in both 2.4 and 2.6 kernels have been only fixed in 2.6. This
>is understandable given that there are only a few active parisc-linux
>kernel developers.... moving foward it is becoming more difficult to
>support the 2.4.x kernels, and we are finding that we need to put in
>some not-so-nice workarounds in some userspace tools to cope with bugs
>in the 2.4 kernel.

I understand the pain to maintain 2 trees. I once had to maintain 4
separate trees (in SCCS - ouch), which at least doubled the pain, but
I think it grows exponential.

>So, the question is, how many of you run parisc-linux on 2.4
>"production" systems and "cannot" switch to 2.6? At last count there are
>about 1200 registered parisc-linux users on the p-l website, and i know
>at least some folks run parisc-linux on decent-sized clusters... so we 
>definitely don't want to break things if people are using 2.4 actively 
>on these systems and have legitimate reasons not to move to 2.6....

Right now, I use debian woody on all my boxes and upgrading to testing
is a PITA for me, as I only have an ISDN line (*one* line - 64k). I usually
install from CD-ROM.

>If you are one of those people who really care about 2.4 support, please
>speak up now! 

Actually, I only have two HPPA production systems, my firewall (a 712/80)
and a 240, everything else is for fooling around - but both are on debian
woody and more or less tied to 2.4. Or are there offical woody backports of
the toolchain needed for 2.6 (preferred under 1G...)?

CU,
Uli
-- 
Dipl. Inf. Ulrich Teichert|e-mail: Ulrich.Teichert@gmx.de
Stormweg 24               |listening to: Noticable One (Rotten Apples)
24539 Neumuenster, Germany|Obstacle 1 (Interpol) Paranoia (N.Y. Rel-X)
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On Mon, May 24, 2004 at 11:32:27AM -0700, Randolph Chung wrote:
> Hi all,
> 
> I'd like to take an informal "survey" of what kernel versions people are
> using....

2.4.25-pa1 on a C3000

> If you are one of those people who really care about 2.4 support, please
> speak up now! 

At the time, I was working on some things that required
SysV streams, and LiS won't run on 2.6. Now I don't need
LiS anymore. That said, the box is quite stable, so I
don't plan to touch the kernel unless a compelling reason
presents itself, in which case a change to 2.6 won't cause
any additional pain.

/w
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Subject: Re: [parisc-linux] Support for 2.4.x kernels on hppa
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> If you are one of those people who really care about 2.4 support, please
> speak up now! 

Here is a little background on this issue.  Randolph has done a
considerable amount of work to port libffi to the PA, and then add
unwind and other support support to libjava.  This gives us a
working Java implementation.  Thanks, Randolph!

This work is currently being integrated into GCC 3.5.  This is working
well with 2.6, but we have problems with unwinding through signal
frames on 2.4.  64-bit support is completely broken.  On at least
some 32-bit kernels, we end up with hung processes that can bring
the system to its knees.

We are having a little debate as to whether we need to support 2.4,
given that GCC 3.5 probably won't be out for a year or so.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Support for 2.4.x kernels on hppa
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> Here is a little background on this issue.  Randolph has done a
> considerable amount of work to port libffi to the PA, and then add
> unwind and other support support to libjava.  This gives us a
> working Java implementation.  Thanks, Randolph!

you are welcome.

it's not just gcc though; gdb has almost the same bits of signal
unwinding code so it has the same issues. there are also other instances
where things are working in 2.6 but not in 2.4 (especially with all the
compat work for 32-bit userspace/64-bit kernel that has gone into 2.6).

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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From: =?ISO-8859-2?Q?Bart=B3omiej_Ochman?= <ochman@ark.pl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Alaxis GSC+ 155Mb ATM
Date: Mon, 24 May 2004 21:46:00 +0200
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Hello,

I have C200+ with Alaxis GSC+ 155Mb ATM card added. Is there any hope it 
will be supported in parisc-linux, or I just can't ask google the right 
question?

Regards,
BO
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On Mon, 24 May 2004 11:32:27 -0700
"Randolph Chung" <tausq@debian.org> wrote:

> Hi all,
> 
> I'd like to take an informal "survey" of what kernel versions people
> are using....
[snip]
> If you are one of those people who really care about 2.4 support,
> please speak up now! 

We're mostly using 2.4 on our production and devel machines, as the
following page shows:

http://www.pateam.org/realisations.html

Some of them could be switched to 2.6, but not the SMP ones, which are
64bit btw, until SMP is proven efficient on 2.6.

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/
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Hi,

[del]
>Here is a little background on this issue.  Randolph has done a
>considerable amount of work to port libffi to the PA, and then add
>unwind and other support support to libjava.  This gives us a
>working Java implementation.  Thanks, Randolph!

Yupp, that's a step forward.

>This work is currently being integrated into GCC 3.5.  This is working
>well with 2.6, but we have problems with unwinding through signal
>frames on 2.4.  64-bit support is completely broken.  On at least
>some 32-bit kernels, we end up with hung processes that can bring
>the system to its knees.

Well, I could only speak for myself and my little boxes, and I would
say only do the absolute minimum required (like security fixes). Getting
new gcc 3.5 (or gdb) code to work, I would not count as necessary.

>We are having a little debate as to whether we need to support 2.4,
>given that GCC 3.5 probably won't be out for a year or so.

Just make it clear in the release notes and let the compile fail on
2.4 with an #error, IMHO. Does that sound too lazy ?-)

HTH,
Uli
-- 
Dipl. Inf. Ulrich Teichert|e-mail: Ulrich.Teichert@gmx.de
Stormweg 24               |listening to: Noticable One (Rotten Apples)
24539 Neumuenster, Germany|Obstacle 1 (Interpol) Paranoia (N.Y. Rel-X)
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Subject: Re: [parisc-linux] Support for 2.4.x kernels on hppa
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> Just make it clear in the release notes and let the compile fail on
> 2.4 with an #error, IMHO. Does that sound too lazy ?-)

Yes.  It's a runtime issue and nobody seems to read the release notes.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: Support for 2.4.x kernels on hppa
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On Mon, 24 May 2004, Randolph Chung wrote:

> So, the question is, how many of you run parisc-linux on 2.4
> "production" systems and "cannot" switch to 2.6?

I'm running a 715/100XC and 2.4.25-pa1, which has been running rock solid
now for 56 days. It's my own personal SMTP/POP/IMAP server, file server,
print server, name server, webmail... basically all sorts of little
oddball services that make my life at home a little easier. I also have a
few friends using it, which is the only reason I'd call it anything near
production (but I figured you'd be interested in comments from home users
too). I haven't upgraded to 2.6 because (a) I have very little time at
home to twiddle with things like this these days, and (b) I'm taking the
view of "it's running happily so there's no need for me to change". I
think I'll probably upgrade the box around Christmas or so. Alternatively
I may be able to lay my hands on a D370 (as mentioned in passing) which
I'll probably use to clone my 715 onto and upgrade that to 2.6.

I've also got a J200 I keep meaning to upgrade. So many toys, so little
time... :-/ That machine also generates enough heat that I usually only
run that in the winter, as the heat output from my little server room goes
into the heat exchanger - 45 minutes of that and the disk array running
and the furnace switches off!

Cheers, Steve
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From: Miguel Angel Torres Lopez <mangel@snsp.gob.mx>
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Subject: [parisc-linux] Problems with installation Debian Linux...please
Date: Mon, 24 May 2004 19:37:59 -0500
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This is a multi-part message in MIME format.

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 Dear Friends:
   
I ship you this e-mail, waiting that you can help me, since your you
developed the setup program to see. 3.0.23-pdc1 dated of 2003-02-23.. they
Debian linux.... for teams HPPA-RISC...  
  
my problem is this:  
  
Beginning with my CD iso (palinux-2.4.20-pa27-20030223-netinst.iso) lowered
of it paginates it:  <http://www.pateam.org/download.html>
http://www.pateam.org/download.html  
  
IPL?  yes  
  
It begins the process of load of PALO and I select the console type: ttyB0  
  
Continuous the load.....  
  
But to the moment to begin the program linux installer in my server, they
don't see each other the graphics... if I see the messages (as the one I
title, the options that it is necessary to install linux, the types of
partitions, etc.) but I don't see the graphics well and it is I impossible
to select my installation options.  
  
can you help me please?  
  
data of my server:  
  
SYSTEM:        9000  
MODEL:         9000/898/K370  
RISC CHIP:     PA8200  
PA VERSION:    2.0  
SYSTEM GOES:     655623311  
CPU SPEED:     200 MHz  
CPUS:          1 activate processor(s)   
MEMORY:        512 Mbytes of memory.  
HP-UX VERSION: B.10.20  
CONSOLE: serial MONO
HARD DISK: 9 GB (waiting three disk but it stops inetgrar)
 
Thank's a lot
 
Miguel Angel Torres Lopez
Coord. Region Norte
Sistema Nac. At'n. de Llam. de Emerg. 066
Tel. (55) 58040000 ext. 13067
e-mail:  <mailto:mangel@snsp.gob.mx> mangel@snsp.gob.mx
 

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<TITLE>Mensaje</TITLE>

<META content="MSHTML 6.00.2800.1106" name=GENERATOR></HEAD>
<BODY>
<DIV><FONT face=Arial><FONT size=2><SPAN class=865023700-25052004><FONT 
color=#0000ff>&nbsp;Dear Friends:</FONT></SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN 
class=865023700-25052004>&nbsp;</SPAN>&nbsp; <BR>I ship you this e-mail, waiting 
that you can help me, since your you developed the setup program to see. 
3.0.23-pdc1 dated of 2003-02-23.. they&nbsp;<SPAN 
class=444022100-25052004>Debian</SPAN> linux.... for teams HPPA-RISC...&nbsp; 
<BR>&nbsp; <BR>my problem is this:&nbsp; <BR>&nbsp; <BR>Beginning with my CD iso 
(palinux-2.4.20-pa27-20030223-netinst.iso) lowered of it paginates it: 
</FONT></FONT><A href="http://www.pateam.org/download.html"><FONT face=Arial 
size=2>http://www.pateam.org/download.html</FONT></A><FONT face=Arial><FONT 
size=2>&nbsp; <BR>&nbsp; <BR>IPL?&nbsp; yes&nbsp; <BR>&nbsp; <BR>It begins the 
process of load of&nbsp;<SPAN class=444022100-25052004>PALO</SPAN> and I select 
the console type: ttyB0&nbsp; <BR>&nbsp; <BR>Continuous the load.....&nbsp; 
<BR>&nbsp; <BR>But to the moment to begin the program linux installer in my 
s<SPAN class=444022100-25052004>erver</SPAN>, they don't see each other the 
graphics... if I see the messages (as the one I title, the options that it is 
necessary to install linux, the types of partitions, etc.) but I don't see the 
graphics well and it is I impossible to select my installation options.&nbsp; 
<BR>&nbsp; <BR>can you help me please?&nbsp; <BR>&nbsp; <BR>data of my serv<SPAN 
class=444022100-25052004>er</SPAN>:&nbsp; <BR>&nbsp; 
<BR>SYSTEM:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 9000&nbsp; 
<BR>MODEL:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 9000/898/K370&nbsp; 
<BR>RISC CHIP:&nbsp;&nbsp;&nbsp;&nbsp; PA8200&nbsp; <BR>PA 
VERSION:&nbsp;&nbsp;&nbsp; 2.0&nbsp; <BR>SYSTEM GOES:&nbsp;&nbsp;&nbsp;&nbsp; 
655623311&nbsp; <BR>CPU SPEED:&nbsp;&nbsp;&nbsp;&nbsp; 200 MHz&nbsp; 
<BR>CPUS:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1 activate 
processor(s)&nbsp;&nbsp; <BR>MEMORY:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
512 Mbytes of memory.&nbsp; <BR>HP-UX VERSION: B.10.20&nbsp; <BR>CONSOLE: 
serial&nbsp;<SPAN class=444022100-25052004>MONO</SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=444022100-25052004></SPAN>HARD DISK: 9 
GB (waiting three disk but it stops inetgrar)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><SPAN class=444022100-25052004><FONT face=Arial size=2>Thank's a 
lot</FONT></SPAN></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV align=left><FONT face="Arial Narrow" size=2>Miguel Angel Torres 
Lopez</FONT></DIV>
<DIV align=left><FONT face="Arial Narrow" size=2>Coord. Region 
Norte</FONT></DIV>
<DIV align=left><FONT face="Arial Narrow" size=2>Sistema Nac. At'n. de Llam. de 
Emerg. 066</FONT></DIV>
<DIV align=left><FONT face="Arial Narrow" size=2>Tel.&nbsp;(55) 58040000 ext. 
13067</FONT></DIV>
<DIV align=left><FONT face="Arial Narrow" size=2>e-mail: </FONT><A 
href="mailto:mangel@snsp.gob.mx"><FONT face="Arial Narrow" 
size=2>mangel@snsp.gob.mx</FONT></A></DIV>
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On Mon, May 24, 2004 at 03:32:05PM -0400, William Waites wrote:
...
> That said, the box is quite stable, so I
> don't plan to touch the kernel unless a compelling reason
> presents itself, in which case a change to 2.6 won't cause
> any additional pain.

Disk devices are enumerated differently on 2.6.
ie some minor pain to find the root disk again
if one isn't lucky.

grant
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On Mon, May 24, 2004 at 05:47:31PM -0400, John David Anglin wrote:
> > Just make it clear in the release notes and let the compile fail on
> > 2.4 with an #error, IMHO. Does that sound too lazy ?-)
> 
> Yes.  It's a runtime issue and nobody seems to read the release notes.

In other words, the next Debian release based on gcc 3.5 or later
will require a 2.6 parisc kernel?

If that's the case, we are looking several years out and I personally
don't see a problem with it. Folks can continue to run "sarge"
for a long time after that if they are happy with it.

Gentoo folks will have to "pin" the compiler rev if they want
to use 2.4 kernels.

I trust we don't have to worry about HPUX, HP-RT, or MPE and
issues with gcc/java? :^)

thanks,
grant
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> In other words, the next Debian release based on gcc 3.5 or later
> will require a 2.6 parisc kernel?

Not require, but some features will only work properly with a 2.6.x
kernel. Some features may cause unexpected behaviors with 2.4 kernels.

Let me explain this in a bit more detail.

As Dave mentioned, there is a case in gcc which is currently broken when
running 2.4 kernels, because sigcontext handling was broken in 2.4
kernels for 64-bit kernels. Carlos fixed this in 2.6.x (thanks Carlos).

The signal trampoline layout also changed in 2.6.x kernels, breaking 
backward compatibility for userspace applications that need to process 
the signal context structure. This has come up not only for gcc but for
some other applications (this topic comes up from time to time on 
debian-hppa).

Currently there is code in gcc to handle 32-bit 2.4 kernels, 32-bit 2.6
kernels and 64-bit 2.6 kernels. However, it appears that with 2.4
kernels there are still some bugs related to either mmap, signal
handling or unaligned trap handling that causes the gcc testsuite to
hang the machine from time to time. If you run a 64-bit 2.4 kernel than
some of the gcc unwinding stuff will not work at all.

It is certainly possible to fix this, if someone is so inclined.... but
there are many bugs to fix in 2.6, and i still have 70+ gdb bugs to fix
:) so it'll have to be someone else....

In a grand scheme of things, there is just a small portion of userspace
that will not work properly with a 2.4 kernel. Probably 95+% of users
will not notice... but it is still broken, and we need to make sure this
is clear and people understand that if something doesn't work, the only
"solution" may be to upgrade to 2.6.x kernels (unless someone steps up
to say they will maintain the 2.4.x kernel series for hppa). gcc is just
one example of where this will come up, there are probably some other
cases where things will be fixed with 2.6 kernels and won't work with
2.4. I don't think anyone will break anything intentionally for 2.4, but
most of the active developers are probably doing most of their work on
2.6, so 2.4 is not nearly as well tested.

I should also point out that, really, this is nothing new, we've
probably been operating in this mode for the last year; it's just
never been made explicit.. :)

thanks,
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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> I trust we don't have to worry about HPUX, HP-RT, or MPE and
> issues with gcc/java? :^)

Well, it shouldn't be too much additional work to support gcc/java
under HPUX.  There have been some experiments with unwinding signal
frames for Ada.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue May 25 2004 05:21, Guy Martin wrote:
> On Mon, 24 May 2004 11:32:27 -0700
> > please speak up now!
>
> Personaly, I don't care about 2.4 even if 2.6 doesn't have SMP. With a
> 2.4, my D270 compiles things slower with SMP than without.=20

Hmm... Probably related to the slow fork/exec on hppa and the effect
of SMP load balancing in kernel scheduler -
There has been continuous work to improve fork/exec - I don't know if
the changes have been applied to 2.4.x systems - others on this list
will know.

> I also have=20
> other problems with SMP like packet loss to localhost, making portmap
> and other socket dae=F9on unusable.
2.4?? or 2.6??  (2.6.x has i/o scheduling)

Mike
>
>
> hth
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Subject: Re: [parisc-linux] Support for 2.4.x kernels on hppa
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On Tue, 25 May 2004 12:12:03 -0500
"Michael S. Zick" <mszick@goquest.com> wrote:

> On Tue May 25 2004 05:21, Guy Martin wrote:
> > On Mon, 24 May 2004 11:32:27 -0700
> > > please speak up now!
> >
> > Personaly, I don't care about 2.4 even if 2.6 doesn't have SMP. With
> > a 2.4, my D270 compiles things slower with SMP than without.=20
>=20
> Hmm... Probably related to the slow fork/exec on hppa and the effect
> of SMP load balancing in kernel scheduler -
> There has been continuous work to improve fork/exec - I don't know if
> the changes have been applied to 2.4.x systems - others on this list
> will know.

Afaik, it was applied to kernel post 2.6.3.

> > I also have=20
> > other problems with SMP like packet loss to localhost, making
> > portmap and other socket dae=F9on unusable.
> 2.4?? or 2.6??  (2.6.x has i/o scheduling)

This is with a 2.4 SMP kernel on my D270/2. The problem disapear when I
use a non-SMP kernel.

--=20
Guy Martin
Gentoo Linux - HPPA port Lead / IPv6 team
Lug Charleroi (Belgium)

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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] Support for 2.4.x kernels on hppa
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> As Dave mentioned, there is a case in gcc which is currently broken when
> running 2.4 kernels, because sigcontext handling was broken in 2.4
> kernels for 64-bit kernels. Carlos fixed this in 2.6.x (thanks Carlos).
> 
> The signal trampoline layout also changed in 2.6.x kernels, breaking 
> backward compatibility for userspace applications that need to process 
> the signal context structure. This has come up not only for gcc but for
> some other applications (this topic comes up from time to time on 
> debian-hppa).
> 
> Currently there is code in gcc to handle 32-bit 2.4 kernels, 32-bit 2.6
> kernels and 64-bit 2.6 kernels. However, it appears that with 2.4
> kernels there are still some bugs related to either mmap, signal
> handling or unaligned trap handling that causes the gcc testsuite to
> hang the machine from time to time. If you run a 64-bit 2.4 kernel than
> some of the gcc unwinding stuff will not work at all.

Thanks for all the help! Yeah, the sigcontext fixes wouldn't have been
possible without James Bottomley's cleanups. A backport of all that code
is a lengthy project, with a lot of reboot cycles.

Since sigcontext is an opaque structures, and we don't have
set/get/make/swap context calls we only broke those programs that parsed
sigcontext by themselves. I apologize for that, but it was the only way
to implement restartable system calls without a race condition (or
rather 2 race conditions, we still have a race I think).

c.

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Subject: Re: [parisc-linux] Problems with installation Debian Linux...please
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> It begins the process of load of PALO and I select the
> console type: ttyB0
>
> Continuous the load.....
>
> But to the moment to begin the program linux installer in
> my server, they don't see each other the graphics... if I
> see the messages (as the one I title, the options that it
> is necessary to install linux, the types of partitions,
> etc.) but I don't see the graphics well and it is I
> impossible to select my installation options.
>
> can you help me please?
>
> data of my server:
>
> SYSTEM:        9000
> MODEL:         9000/898/K370
> RISC CHIP:     PA8200
> PA VERSION:    2.0
> SYSTEM GOES:     655623311
> CPU SPEED:     200 MHz
> CPUS:          1 activate processor(s)
> MEMORY:        512 Mbytes of memory.
> HP-UX VERSION: B.10.20
> CONSOLE: serial MONO
> HARD DISK: 9 GB (waiting three disk but it stops inetgrar)
>
> Thank's a lot

When you boot the Debian netinstall ISO it runs an
interactive program that lets you partition your disks, set
up swap, install the boot loader, etc.

The program uses something like ANSI to display different
coloured text and block characters, whereby it sends an
escape character, then three or four control characters then
the character to be printed to the console.

My 9000 doesn't have a graphics card.  It has an HP
monochrome serial terminal.  The HP terminal doesn't support
ANSI, so when I boot the netinstall ISO and it gets to the
installation menu, all I get is a lot of garbage spacing out
the characters that the menu is supposed to be made up of.

My handling was to use a notebook running Hyperterminal
under Windows instead of the dumb terminal while installing
- the colours still didn't come out right and the vertical
spacing went a bit funny when scrolling up and down the
menus, but at least I could read the menus and select items
off them.

Hope this helps.

Wayne
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On Mon, 24 May 2004 11:32:27 -0700
Randolph Chung <tausq@debian.org> wrote:

> I'd like to take an informal "survey" of what kernel versions people
> are using....

I use a 2.6 on a A440 and B180l and a C3600.
I remember having trouble with a J5000 but it was some time ago and I
guess my problem was the SMP enabled.

I'd like to use it on my D270 and on a K360 but there are scsi problems
atm. They both suffer of the same problem described by Joel Soete.

Also, a gentoo user wasn't able to boot a 2.6 on a 735/120. Palo (1.5)
display "If it's the last message ..." and nothing more while it works
well with a 2.4. I'll try myself later on my 735/99 which is down atm.


I'd like to add that despite the scsi problem, I can't still produce
livecd (the gentoo installation cd) using 2.6 because of the numerous
default config. If I remember correctly, if I enable some HIL stuff,
the kernel loops or crash at boot on my b180l.

> If you are one of those people who really care about 2.4 support,
> please speak up now!=20

Personaly, I don't care about 2.4 even if 2.6 doesn't have SMP. With a
2.4, my D270 compiles things slower with SMP than without. I also have
other problems with SMP like packet loss to localhost, making portmap
and other socket dae=F9on unusable.


hth

--=20
Guy Martin
Gentoo Linux - HPPA port Lead / IPv6 team
Lug Charleroi (Belgium)

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On Tue, 2004-05-25 at 00:42, Randolph Chung wrote:
> I should also point out that, really, this is nothing new, we've
> probably been operating in this mode for the last year; it's just
> never been made explicit.. :)

Well, I think it's basically the democracy of open source.  I did quite
a few (although by no means all) of the kernel fixes to get the
gcc/glibc tests to pass on 2.6, I have no interest in fixing it on 2.4,
but if someone else cares enough, they will...

James


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On Tue, May 25, 2004 at 01:36:10PM -0400, William Waites wrote:
...
> At this moment I am unsure of the state of palo in
> debian/testing...

AFAICT, palo 1.5 is has not been accepted into "testing" yet.

But I strongly reccomend installing 1.5 since it clearly fixes
the only currently known bug in 1.4 and adds some nice features
like "ls" command (kudos to james again).

grant
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Subject: [parisc-linux] [PATCH] Harmony - buffer underrun crash fix
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On Mon, May 24, 2004 at 08:12:00AM +0200, Thibaut VARENE wrote:

> There's been a suspected buffer overflow in the code for years, and it's
> a known "feature" that the driver may randomly panic the kernel. Patch
> welcome.

Thanks.  I had assumed that this was black magic and I'd never be able
to fix it, but thanks to your encouragement, I've taken a look and I now
have a fix for the crash, as well as a sample skipping problem that I
was previously unaware of:

Index: harmony.c
===================================================================
RCS file: /var/cvs/linux-2.4/drivers/sound/harmony.c,v
retrieving revision 1.28
diff -u -r1.28 harmony.c
--- harmony.c	22 Jun 2002 09:05:59 -0000	1.28
+++ harmony.c	25 May 2004 19:15:21 -0000
@@ -537,6 +537,7 @@
 	int count = 0;
 	int frame_size;
 	int buf_to_fill;
+	int fresh_buffer;
 
 	if (!harmony.format_initialized) 
 	   harmony_format_auto_detect(buffer, total_count);
@@ -556,12 +557,16 @@
 		
 		
 		buf_to_fill = (harmony.first_filled_play+harmony.nb_filled_play); 
-		if (harmony.play_offset)
+		if (harmony.play_offset) {
 			buf_to_fill--;
+			buf_to_fill += MAX_BUFS;
+		}
 		buf_to_fill %= MAX_BUFS;
-
+		
+		fresh_buffer = (harmony.play_offset == 0);
+		
 		/* Figure out the size of the frame */
-		if ((total_count-count) > HARMONY_BUF_SIZE - harmony.play_offset) {
+		if ((total_count-count) >= HARMONY_BUF_SIZE - harmony.play_offset) {
 			frame_size = HARMONY_BUF_SIZE - harmony.play_offset;
 		} else {
 			frame_size = total_count - count;
@@ -578,7 +583,7 @@
 		CHECK_WBACK_INV_OFFSET(played_buf, (HARMONY_BUF_SIZE*buf_to_fill + harmony.play_offset), 
 				frame_size);
 	
-		if (!harmony.play_offset)
+		if (fresh_buffer)
 			harmony.nb_filled_play++;
 		
 		count += frame_size;

Lines 560-563 fix the crash, which was caused by buf_to_fill taking the
value -1 (since -1 % MAX_BUFS == -1).

Lines 540, 566, 586/587 should fix a bug where samples were skipped.

The change to line 569 prevents harmony_silence from being called
whenever the final frame that is to be copied completely fills a buffer.

I'm a bit of a newbie here... can a harmony_interrupt occur whilst we're
in harmony_audio_write?
-- 
Stuart Brady
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Hi all,

I did an apt-get of the latest 2.6.6 kernel on my Woody system using:
apt-get install palinux-712-defconfig-2.6.1-pa3

The kernel boots fine, but I can't logon, because apparently I lost 
keyboard. This is probably due to the fact that I'm running Woody, instead 
of Testing or Unstable. I was wondering which is the best option to upgrade 
to. Is it better to use Testing or do I need Unstable.

The reason I was upgrading to 2.6 is because Mozilla (and Galeon) were 
segfaulting on my older 2.4.20 kernel.  Are there any people on the list 
successfully running Mozilla on Woody?

Many thanks in advance.


regards,

Kenneth

_________________________________________________________________
Maak online je eigen website met Webbuilder http://webbuilder.msn.be


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Grant Grundler wrote:

>I'm not aware of any driver for it. You might check with the hppa *BSD
>folks. [...]
>
I've checked there, but no system, except HP-UX, with the driver found.
Is anybody, beside me, interested in this driver to be written?

>[...] I don't have docs or anything though I suppose someone in HP must.
>  
>
Do you think they would give me this documentation? Can you point 
somebody in HP to write to?

Regards,
BO
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On Wed, May 26, 2004 at 09:08:10AM +0000, Kenneth Westelinck wrote:
> >There is no need to use unstable instead of testing!
> Ok, thanks for that.

yeah - testing has usually worked well with occasional minor brokenness.
(wow...see what the internet has done to my english! :^)
I've been running "testing" on my desktop/http/ftp servers for
the past couple of years and only had a few SNAFUs.
(palo was the most recent one).

BTW, if you move forward to testing (recomended), you can add
another source to /etc/apt/sources.list to pick up the
latest kernels (not auto updated). It's documented here:
	http://cvs.parisc-linux.org/download/linux-2.6/

There is a similar web page for 2.4 parisc kernels.

> Ok, I'll try that one, there's nothing broken yet. I successfully rolled 
> back to the old situation ;)
> Is there ongoing parisc support/development for the 2.4.x series, or are 
> you guys only focussing on the 2.6?

That's what the original question was about.
For the past 6-12 monthes, we've mostly focused on 2.6 devel.

grant
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On Wed, May 26, 2004 at 10:11:57AM -0600, Grant Grundler wrote:
> That's what the original question was about.
> For the past 6-12 monthes, we've mostly focused on 2.6 devel.

BTW, if someone wants to support 2.4 kernels, patches are welcome
as long as they are tested. Especially backports of 2.6 kernel fixes.

"support" just means someone is generating patches and (maybe
someone else) testing those patches before committing to CVS.
There's no magic, money, or anything else behind the scenes.

grant
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On Wed, May 26, 2004 at 05:38:15PM +0200, Bart?omiej Ochman wrote:
> Grant Grundler wrote:
> 
> >I'm not aware of any driver for it. You might check with the hppa *BSD
> >folks. [...]
> >
> I've checked there, but no system, except HP-UX, with the driver found.
> Is anybody, beside me, interested in this driver to be written?

A guy named "Mickey" working on *BSD for parisc was IIRC.
google for "Alaxis BSD" and his name should pop up.

> >[...] I don't have docs or anything though I suppose someone in HP must.
> Do you think they would give me this documentation?

Maybe under NDA. But that's a long shot.

> Can you point somebody in HP to write to?

Not offhand. If someone on this list knows who,  please privately
forward the request.

grant
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From: Thibaut VARENE <varenet@esiee.fr>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] Harmony - buffer underrun crash fix
Date: Wed, 26 May 2004 20:40:37 +0200
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Le mercredi, 26 mai 2004, =E0 08:55 Europe/Paris, Thibaut VARENE a =E9crit=
 :
>
> This looks just great, I'll test it asap, thanks !

Your patch has been committed to 2.4 and 2.6 tree, thanks a lot!


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/=

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From: "Kenneth Westelinck" <kennywest1@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: no login with 2.6 kernel and Mozilla probs on 712/60
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Xref: news.gmane.org gmane.linux.ports.parisc:21678

>have a look in the /boot/config-xxx to find the HIL support whether you
>use an HIL kbd and mouse. As far as I know HIL is supported from the 2.4x
>kernel for about 2 years, so it sounds strange.
>If you use a common PS2 kbd have a look in the /etc/X11/XF86Config-4 to
>see if the kbd is correctly set.
Nono. A 712 doesn't have any HIL, simple PS/2. And I'm not using XDM to 
login. Plain console.

>There is no need to use unstable instead of testing!
Ok, thanks for that.

> >The reason I was upgrading to 2.6 is because Mozilla (and Galeon) were
>
> >segfaulting on my older 2.4.20 kernel.  Are there any people on the list
> >successfully running Mozilla on Woody?
>
>Why didn't you use a 2.4.24 or 2.4.26 kernel, which is good for almost all
>the *old* or *not pretty recent* ws with supported graphics card?
Ok, I'll try that one, there's nothing broken yet. I successfully rolled 
back to the old situation ;)
Is there ongoing parisc support/development for the 2.4.x series, or are you 
guys only focussing on the 2.6?


regards,

Kenneth

_________________________________________________________________
Plannen om een nieuwe computer te kopen? Kijk eens hier.. 
http://www.msn.be/shopping/dell_bis/


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From - Thu Nov 08 21:32:07 2018
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From: "SteX" <stefano.melchior@fastwebnet.it>
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Subject: RE: no login with 2.6 kernel and Mozilla probs on 712/60
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Hi Kenneth,

>>have a look in the /boot/config-xxx to find the HIL support whether you=

>>use an HIL kbd and mouse. As far as I know HIL is supported from the 2.=
4x
>>kernel for about 2 years, so it sounds strange.
>>If you use a common PS2 kbd have a look in the /etc/X11/XF86Config-4 to=

>>see if the kbd is correctly set.
>Nono. A 712 doesn't have any HIL, simple PS/2. And I'm not using XDM to

>login. Plain console.

It happened to me, when I launced PALO with the STI support. Not whether
I connected my laptop with a serial cable. The login didn't appear and th=
e
system seemed to hang. Verify the same situation by connecting another sy=
stem
via console cable and minicom.


>Is there ongoing parisc support/development for the 2.4.x series, or are=

>you guys only focussing on the 2.6?

The development is in both way, why un-support a still valid kernel, as
2.4. Why neither support a new 2.6 kernel. It is not a fork!

Regards

SteX




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From: Stuart Brady <sdbrady@ntlworld.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] Harmony - better mixer channel names
Date: Thu, 27 May 2004 21:02:42 +0100
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--n8g4imXOkfNTN/H1
Content-Type: text/plain; charset=us-ascii
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Hi,

This patch improves the Harmony driver's naming of mixer channels:

* VOLUME is now MONITOR
* OGAIN is now VOLUME
* SPEAKER is now LINE1
* For output, LINE is now LINE2
* PHONEOUT is now LINE3
* The LINE channel is now for input only
* Within the source, the names INTERNAL, LINEOUT and HEADPHONES refer to
  LINE1, LINE2 and LINE3, respectively
* MIC and IGAIN remain unchanged

Regards,
-- 
Stuart Brady

--n8g4imXOkfNTN/H1
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="harmony-mixer-channelnames.diff"

--- drivers/sound/harmony.c.orig	2004-05-25 23:21:52.000000000 +0100
+++ drivers/sound/harmony.c	2004-05-27 18:20:31.000000000 +0100
@@ -124,9 +124,17 @@
 #define GAIN_RO_MASK    ( 0x3f << GAIN_RO_SHIFT) 
 
 
-#define MAX_OUTPUT_LEVEL (GAIN_RO_MASK >> GAIN_RO_SHIFT)
-#define MAX_INPUT_LEVEL  (GAIN_RI_MASK >> GAIN_RI_SHIFT)
-#define MAX_VOLUME_LEVEL (GAIN_MA_MASK >> GAIN_MA_SHIFT)
+#define MAX_OUTPUT_LEVEL  (GAIN_RO_MASK >> GAIN_RO_SHIFT)
+#define MAX_INPUT_LEVEL   (GAIN_RI_MASK >> GAIN_RI_SHIFT)
+#define MAX_MONITOR_LEVEL (GAIN_MA_MASK >> GAIN_MA_SHIFT)
+
+#define MIXER_INTERNAL   SOUND_MIXER_LINE1
+#define MIXER_LINEOUT    SOUND_MIXER_LINE2
+#define MIXER_HEADPHONES SOUND_MIXER_LINE3
+
+#define MASK_INTERNAL   SOUND_MASK_LINE1
+#define MASK_LINEOUT    SOUND_MASK_LINE2
+#define MASK_HEADPHONES SOUND_MASK_LINE3
 
 /*
  * Channels Mask in mixer register
@@ -882,7 +890,7 @@
 	int right_level;
 
 	switch (channel) {
-		case SOUND_MIXER_OGAIN:
+		case SOUND_MIXER_VOLUME:
 			left_level  = (harmony.current_gain & GAIN_LO_MASK) >> GAIN_LO_SHIFT;
 			right_level = (harmony.current_gain & GAIN_RO_MASK) >> GAIN_RO_SHIFT;
 			left_level  = to_oss_level(MAX_OUTPUT_LEVEL - left_level, MAX_OUTPUT_LEVEL);
@@ -896,9 +904,9 @@
 			right_level= to_oss_level(right_level, MAX_INPUT_LEVEL);
 			return (right_level << 8)+left_level;
 			
-		case SOUND_MIXER_VOLUME:
+		case SOUND_MIXER_MONITOR:
 			left_level = (harmony.current_gain & GAIN_MA_MASK) >> GAIN_MA_SHIFT;
-			left_level = to_oss_level(MAX_VOLUME_LEVEL-left_level, MAX_VOLUME_LEVEL);
+			left_level = to_oss_level(MAX_MONITOR_LEVEL-left_level, MAX_MONITOR_LEVEL);
 			return left_level;
 	}
 	return -EINVAL;
@@ -923,7 +931,7 @@
 	left_level = value & 0x000000ff;
   
 	switch (channel) {
-		case SOUND_MIXER_OGAIN:
+		case SOUND_MIXER_VOLUME:
 			right_level = to_harmony_level(100-right_level, MAX_OUTPUT_LEVEL);
 			left_level  = to_harmony_level(100-left_level, MAX_OUTPUT_LEVEL);
 			new_right_level = to_oss_level(MAX_OUTPUT_LEVEL - right_level, MAX_OUTPUT_LEVEL);
@@ -943,10 +951,10 @@
 			harmony_mixer_set_gain();
 			return (new_right_level << 8) + new_left_level;
 	
-		case SOUND_MIXER_VOLUME:
-			left_level = to_harmony_level(100-left_level, MAX_VOLUME_LEVEL);
-			new_left_level = to_oss_level(MAX_VOLUME_LEVEL-left_level, MAX_VOLUME_LEVEL);
-			harmony.current_gain = (harmony.current_gain & ~GAIN_MA_MASK)| (left_level << GAIN_MA_SHIFT);
+		case SOUND_MIXER_MONITOR:
+			left_level = to_harmony_level(100-left_level, MAX_MONITOR_LEVEL);
+			new_left_level = to_oss_level(MAX_MONITOR_LEVEL-left_level, MAX_MONITOR_LEVEL);
+			harmony.current_gain = (harmony.current_gain & ~GAIN_MA_MASK) | (left_level << GAIN_MA_SHIFT);
 			harmony_mixer_set_gain();
 			return new_left_level;
 	}
@@ -1004,9 +1012,9 @@
 {
 	int outmask = 0;
 	
-	if (harmony.current_gain & GAIN_HE_MASK) outmask |=SOUND_MASK_PHONEOUT;
-	if (harmony.current_gain & GAIN_LE_MASK) outmask |=SOUND_MASK_LINE;
-	if (harmony.current_gain & GAIN_SE_MASK) outmask |=SOUND_MASK_SPEAKER;
+	if (harmony.current_gain & GAIN_SE_MASK) outmask |= MASK_INTERNAL;
+	if (harmony.current_gain & GAIN_LE_MASK) outmask |= MASK_LINEOUT;
+	if (harmony.current_gain & GAIN_HE_MASK) outmask |= MASK_HEADPHONES;
 	
 	return outmask;
 }
@@ -1014,24 +1022,24 @@
 
 static int harmony_mixer_set_outmask(int outmask)
 {
-	if (outmask & SOUND_MASK_PHONEOUT) 
-		harmony.current_gain |= GAIN_HE_MASK; 
+	if (outmask & MASK_INTERNAL) 
+		harmony.current_gain |= GAIN_SE_MASK;
 	else 
-		harmony.current_gain &= ~GAIN_HE_MASK;
+		harmony.current_gain &= ~GAIN_SE_MASK;
 	
-	if (outmask & SOUND_MASK_LINE) 
+	if (outmask & MASK_LINEOUT) 
 		harmony.current_gain |= GAIN_LE_MASK;
 	else 
 		harmony.current_gain &= ~GAIN_LE_MASK;
 	
-	if (outmask & SOUND_MASK_SPEAKER) 
-		harmony.current_gain |= GAIN_SE_MASK;
+	if (outmask & MASK_HEADPHONES) 
+		harmony.current_gain |= GAIN_HE_MASK; 
 	else 
-		harmony.current_gain &= ~GAIN_SE_MASK;
+		harmony.current_gain &= ~GAIN_HE_MASK;
 	
 	harmony_mixer_set_gain();
 
-	return (outmask & (SOUND_MASK_PHONEOUT | SOUND_MASK_LINE | SOUND_MASK_SPEAKER));
+	return (outmask & (MASK_INTERNAL | MASK_LINEOUT | MASK_HEADPHONES));
 }
 
 /*
@@ -1069,19 +1077,19 @@
 		ret = SOUND_CAP_EXCL_INPUT;
 		break;
 	case MIXER_READ(SOUND_MIXER_STEREODEVS):
-		ret = SOUND_MASK_IGAIN | SOUND_MASK_OGAIN;
+		ret = SOUND_MASK_VOLUME | SOUND_MASK_IGAIN;
 		break;
 		
 	case MIXER_READ(SOUND_MIXER_RECMASK):
 		ret = SOUND_MASK_MIC | SOUND_MASK_LINE;
 		break;
 	case MIXER_READ(SOUND_MIXER_DEVMASK):
-		ret = SOUND_MASK_OGAIN | SOUND_MASK_IGAIN |
-			SOUND_MASK_VOLUME;
+		ret = SOUND_MASK_VOLUME | SOUND_MASK_IGAIN |
+			SOUND_MASK_MONITOR;
 		break;
 	case MIXER_READ(SOUND_MIXER_OUTMASK):
-		ret = SOUND_MASK_SPEAKER | SOUND_MASK_LINE |
-			SOUND_MASK_PHONEOUT;
+		ret = MASK_INTERNAL | MASK_LINEOUT |
+			MASK_HEADPHONES;
 		break;
 		
 	case MIXER_WRITE(SOUND_MIXER_RECSRC):
@@ -1098,15 +1106,15 @@
 		ret = harmony_mixer_get_outmask();
 		break;
 	
-	case MIXER_WRITE(SOUND_MIXER_OGAIN):
-	case MIXER_WRITE(SOUND_MIXER_IGAIN):
 	case MIXER_WRITE(SOUND_MIXER_VOLUME):
+	case MIXER_WRITE(SOUND_MIXER_IGAIN):
+	case MIXER_WRITE(SOUND_MIXER_MONITOR):
 		ret = harmony_mixer_set_level(cmd & 0xff, val);
 		break;
 
-	case MIXER_READ(SOUND_MIXER_OGAIN):
-	case MIXER_READ(SOUND_MIXER_IGAIN):
 	case MIXER_READ(SOUND_MIXER_VOLUME):
+	case MIXER_READ(SOUND_MIXER_IGAIN):
+	case MIXER_READ(SOUND_MIXER_MONITOR):
 		ret = harmony_mixer_get_level(cmd & 0xff);
 		break;
 

--n8g4imXOkfNTN/H1
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From: Stuart Brady <sdbrady@ntlworld.com>
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Subject: [parisc-linux] [PATCH] Harmony - improved recording source toggling
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This patch improves toggling of the recording source between the MIC and
LINE channels.  It does not depend on the channel names patch.

Cheers,
-- 
Stuart Brady

--d6Gm4EdcadzBjdND
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--- drivers/sound/harmony.c.orig	2004-05-25 23:21:52.000000000 +0100
+++ drivers/sound/harmony.c	2004-05-27 21:44:18.000000000 +0100
@@ -981,11 +981,15 @@
 {
 	int new_input_line;
 	int new_input_mask;

From - Thu Nov 08 21:32:07 2018
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On Thu, May 27, 2004 at 07:45:26PM +0000, Kenneth Westelinck wrote:

> Strange. Galeon used to work a while ago (and as far as I understand, 
> Galeon is based on some Mozilla libraries). But after doing an apt-get 
> upgrade (I think this was a year ago or something) all of the sudden it 
> stopped working :( The main reason why I want to use my 712 is surfing and 
> reading mail. And dillo is not an option ;)

Well, at least you can use konqueror (although I prefer mozilla/
firebird myself). Also amaya works, however I don't consider
it as a browser (in that respect it is a PITA), but more as
a validator.

Konqueror is starting up slow (on my C3k running Debian/testing),
but after it loaded all libraries and started all neccessary
KDE daemons (most notably knotify, which takes ages to start),
it's more than usable.

Greetings,
   Max


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Subject: [parisc-linux] Re: ad1889 driver/docs for c3k/j5k audio
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On Sun, Feb 22, 2004 at 09:25:44AM -0700, Grant Grundler wrote:

> I posted the only documentation we have for ad1889:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2002-June/016704.html

> If you have patches for ad1889, I'm happy to test (and commit) them for you.

Unfortunately, the documentation you're referring to is no longer there.
Do you still have it?

If so, I don't have a box with an ad1889, but I should be able to make
some small improvements.
-- 
Stuart Brady
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Xref: news.gmane.org gmane.linux.ports.parisc:21684

> Unfortunately, the documentation you're referring to is no longer there.
> Do you still have it?

try: ftp://ftp.parisc-linux.org/docs/AD1889.pdf

> If so, I don't have a box with an ad1889, but I should be able to make
> some small improvements.

I think Mort is also looking at this.....

thanks :)
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] glibc update is broken in testing?
Date: Sat, 29 May 2004 12:49:10 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:21685

Heads up,
During an update from "dselect", my /lib/ld.so.1 went missing.
It's not clear if this is a kernel bug or a bug with the glibc update.

Verified /lib/ld-2.3.2.so is still present with "echo /lib/ld*".

System is basically useless until I cold install or fix up
the /lib/ld.so.1 symlink. 

dselect/apt-get output appended.

grant

ps. The update is going through a proxy/squid cache to talk to m.k.o.
I usually update several machines at the same time pretty quickly this way.
I do not have a 6MB/s link to m.k.o. :^)

on:~# dselect
Get:1 http://mirrors.kernel.org testing/main Packages [2835kB]
Get:2 http://mirrors.kernel.org testing/main Release [81B]
Get:3 http://mirrors.kernel.org testing/non-free Packages [40.5kB]
Get:4 http://mirrors.kernel.org testing/non-free Release [85B]
Get:5 http://mirrors.kernel.org testing/contrib Packages [49.5kB]
Get:6 http://mirrors.kernel.org testing/contrib Release [84B]
Get:7 http://mirrors.kernel.org testing/main Sources [1162kB]
Get:8 http://mirrors.kernel.org testing/main Release [83B]
Get:9 http://mirrors.kernel.org testing/non-free Sources [25.3kB]
Get:10 http://mirrors.kernel.org testing/non-free Release [87B]
Get:11 http://mirrors.kernel.org testing/contrib Sources [26.8kB]
Get:12 http://mirrors.kernel.org testing/contrib Release [86B]
Fetched 4140kB in 4s (927kB/s)                    
Reading Package Lists... Done
Merging Available information
Replacing available packages info, using /var/cache/apt/available.
Information about 13398 package(s) was updated.
Reading Package Lists... Done
Building Dependency Tree... Done
The following NEW packages will be installed:
  emacs21-bin-common libungif4g vim-common
The following packages will be upgraded:
  adduser apt apt-utils autotools-dev base-files bash bc bind9-host binutils
  bsdmainutils console-common console-data cpp-3.3 cvs cxref dash dbs dc
  debconf debconf-i18n debconf-utils debhelper debianutils dictionaries-common
  distcc dnsutils doc-linux-text dpkg dpkg-dev dselect e2fslibs e2fsprogs
  emacs21 emacs21-common exim fakeroot flex fontconfig g++-3.3 gcc-3.3
  gcc-3.3-base gdb hddtemp ifupdown initrd-tools initscripts intltool-debian
  iptables kernel-package libattr1 libblkid1 libc6 libc6-dev libcap1
  libcomerr2 libconsole libdb3 libdb3-util libdb4.0 libdns11 libdps1
  libfontconfig1 libfontconfig1-dev libgcc1 libice-dev libice6 libisc7
  libkpathsea3 liblwres1 libnewt0.51 libpam-modules libpam-runtime libpam0g
  libpam0g-dev libpng10-0 libpng12-0 libpng12-dev libpng2 libsm-dev libsm6
  libss2 libssl0.9.7 libstdc++5 libstdc++5-3.3-dev libt1-5 libtasn1-0
  libtasn1-2 libtool libuuid1 libwrap0 libx11-6 libx11-dev libxaw7
  libxcursor-dev libxcursor1 libxext-dev libxext6 libxft1 libxi-dev libxi6
  libxmu-dev libxmu6 libxmuu-dev libxmuu1 libxp-dev libxp6 libxpm-dev libxpm4
  libxrandr-dev libxrandr2 libxt-dev libxt6 libxtrap-dev libxtrap6 libxtst-dev
  libxtst6 libxv-dev libxv1 locales login lsof make makedev man-db
  module-init-tools net-tools netbase ntpdate palo passwd pciutils pkg-config
  pm-dev po-debconf portmap ppp pppconfig pppoeconf procps proftpd
  proftpd-common python-newt python2.3 reportbug rsync scsitools sed ssh
  strace sysv-rc sysvinit tar tasksel tcpd tetex-base tetex-bin time ucf vim
  whiptail whois x-dev xbase-clients xfree86-common xlibmesa-gl xlibmesa-glu
  xlibs xlibs-data xlibs-dev xlibs-static-dev xterm zlib1g zlib1g-dev
173 upgraded, 3 newly installed, 0 to remove and 0 not upgraded.
Need to get 108MB of archives.
After unpacking 3528kB of additional disk space will be used.
Do you want to continue? [Y/n] 
Get:1 http://mirrors.kernel.org testing/main base-files 3.0.15 [34.0kB]
Get:2 http://mirrors.kernel.org testing/main bash 2.05b-15 [681kB]
Get:3 http://mirrors.kernel.org testing/main debianutils 2.8.2 [43.5kB]
Get:4 http://mirrors.kernel.org testing/main dpkg 1.10.21 [1256kB]
Get:5 http://mirrors.kernel.org testing/main libc6-dev 2.3.2.ds1-12 [3029kB]
Get:6 http://mirrors.kernel.org testing/main debconf-i18n 1.4.25 [65.4kB]
Get:7 http://mirrors.kernel.org testing/main debconf 1.4.25 [98.1kB]
Get:8 http://mirrors.kernel.org testing/main locales 2.3.2.ds1-12 [3978kB]
Get:9 http://mirrors.kernel.org testing/main libc6 2.3.2.ds1-12 [4353kB]
Get:10 http://mirrors.kernel.org testing/main e2fslibs 1.35-6 [84.9kB]
Get:11 http://mirrors.kernel.org testing/main e2fsprogs 1.35-6 [495kB]
Get:12 http://mirrors.kernel.org testing/main libdb3 3.2.9-19.1 [268kB]
Get:13 http://mirrors.kernel.org testing/main libcap1 1:1.10-14 [10.2kB]
Get:14 http://mirrors.kernel.org testing/main libpam0g-dev 0.76-21 [115kB]
Get:15 http://mirrors.kernel.org testing/main libpam-runtime 0.76-21 [59.0kB]
Get:16 http://mirrors.kernel.org testing/main libpam0g 0.76-21 [78.2kB]
Get:17 http://mirrors.kernel.org testing/main libpam-modules 0.76-21 [173kB]
Get:18 http://mirrors.kernel.org testing/main login 1:4.0.3-28.3 [356kB]
Get:19 http://mirrors.kernel.org testing/main sed 4.0.9-3 [217kB]
Get:20 http://mirrors.kernel.org testing/main sysvinit 2.85-15 [101kB]
Get:21 http://mirrors.kernel.org testing/main tar 1.13.93-4 [514kB]
Get:22 http://mirrors.kernel.org testing/main console-data 2002.12.04dbs-39 [1109kB]
Get:23 http://mirrors.kernel.org testing/main console-common 0.7.42 [77.6kB]
Get:24 http://mirrors.kernel.org testing/main dash 0.4.26 [93.0kB]
Get:25 http://mirrors.kernel.org testing/main ucf 1.06 [33.5kB]
Get:26 http://mirrors.kernel.org testing/main tetex-base 2.0.2-8 [14.3MB]
Get:27 http://mirrors.kernel.org testing/main libgcc1 1:3.3.3-6 [76.8kB]
Get:28 http://mirrors.kernel.org testing/main x-dev 4.3.0.dfsg.1-1 [183kB]
Get:29 http://mirrors.kernel.org testing/main libice-dev 4.3.0.dfsg.1-1 [179kB]
Get:30 http://mirrors.kernel.org testing/main libice6 4.3.0.dfsg.1-1 [172kB]
Get:31 http://mirrors.kernel.org testing/main libsm-dev 4.3.0.dfsg.1-1 [145kB]
Get:32 http://mirrors.kernel.org testing/main libsm6 4.3.0.dfsg.1-1 [149kB]
Get:33 http://mirrors.kernel.org testing/main libx11-dev 4.3.0.dfsg.1-1 [1414kB]
Get:34 http://mirrors.kernel.org testing/main xfree86-common 4.3.0.dfsg.1-1 [691kB]
Get:35 http://mirrors.kernel.org testing/main xlibs-data 4.3.0.dfsg.1-1 [863kB]
Get:36 http://mirrors.kernel.org testing/main libx11-6 4.3.0.dfsg.1-1 [734kB]
Get:37 http://mirrors.kernel.org testing/main libxext-dev 4.3.0.dfsg.1-1 [220kB]
Get:38 http://mirrors.kernel.org testing/main libxext6 4.3.0.dfsg.1-1 [159kB]
Get:39 http://mirrors.kernel.org testing/main pkg-config 0.15.0-4 [35.0kB]
Get:40 http://mirrors.kernel.org testing/main libfontconfig1-dev 2.2.2-2 [242kB]
Get:41 http://mirrors.kernel.org testing/main zlib1g-dev 1:1.2.1.1-3 [431kB]
Get:42 http://mirrors.kernel.org testing/main zlib1g 1:1.2.1.1-3 [68.9kB]
Get:43 http://mirrors.kernel.org testing/main fontconfig 2.2.2-2 [57.9kB]
Get:44 http://mirrors.kernel.org testing/main libfontconfig1 2.2.2-2 [103kB]
Get:45 http://mirrors.kernel.org testing/main libxft1 4.3.0.dfsg.1-1 [158kB]
Get:46 http://mirrors.kernel.org testing/main libxi-dev 4.3.0.dfsg.1-1 [201kB]
Get:47 http://mirrors.kernel.org testing/main libxi6 4.3.0.dfsg.1-1 [147kB]
Get:48 http://mirrors.kernel.org testing/main libxt-dev 4.3.0.dfsg.1-1 [635kB]
Get:49 http://mirrors.kernel.org testing/main libxt6 4.3.0.dfsg.1-1 [312kB]
Get:50 http://mirrors.kernel.org testing/main libxmu-dev 4.3.0.dfsg.1-1 [197kB]
Get:51 http://mirrors.kernel.org testing/main libxmu6 4.3.0.dfsg.1-1 [181kB]
Get:52 http://mirrors.kernel.org testing/main libxmuu-dev 4.3.0.dfsg.1-1 [131kB]
Get:53 http://mirrors.kernel.org testing/main libxmuu1 4.3.0.dfsg.1-1 [138kB]
Get:54 http://mirrors.kernel.org testing/main libxp-dev 4.3.0.dfsg.1-1 [149kB]
Get:55 http://mirrors.kernel.org testing/main libxp6 4.3.0.dfsg.1-1 [147kB]
Get:56 http://mirrors.kernel.org testing/main libxpm-dev 4.3.0.dfsg.1-1 [166kB]
Get:57 http://mirrors.kernel.org testing/main libxpm4 4.3.0.dfsg.1-1 [165kB]   
Get:58 http://mirrors.kernel.org testing/main libxrandr-dev 4.3.0.dfsg.1-1 [138kB]
Get:59 http://mirrors.kernel.org testing/main libxrandr2 4.3.0.dfsg.1-1 [138kB]
Get:60 http://mirrors.kernel.org testing/main libxtrap-dev 4.3.0.dfsg.1-1 [154kB]
Get:61 http://mirrors.kernel.org testing/main libxtrap6 4.3.0.dfsg.1-1 [148kB] 
Get:62 http://mirrors.kernel.org testing/main libxtst-dev 4.3.0.dfsg.1-1 [139kB]
Get:63 http://mirrors.kernel.org testing/main libxtst6 4.3.0.dfsg.1-1 [141kB]  
Get:64 http://mirrors.kernel.org testing/main xlibs 4.3.0.dfsg.1-1 [374kB]     
Get:65 http://mirrors.kernel.org testing/main libkpathsea3 2.0.2-14 [62.1kB]   
Get:66 http://mirrors.kernel.org testing/main libpng12-dev 1.2.5.0-6 [257kB]   
Get:67 http://mirrors.kernel.org testing/main libpng12-0 1.2.5.0-6 [121kB]     
Get:68 http://mirrors.kernel.org testing/main gcc-3.3-base 1:3.3.3-6 [145kB]   
Get:69 http://mirrors.kernel.org testing/main libstdc++5 1:3.3.3-6 [357kB]     
Get:70 http://mirrors.kernel.org testing/main libt1-5 5.0.2-2 [173kB]          
Get:71 http://mirrors.kernel.org testing/main libxaw7 4.3.0.dfsg.1-1 [332kB]   
Get:72 http://mirrors.kernel.org testing/main tetex-bin 2.0.2-14 [4570kB]      
Get:73 http://mirrors.kernel.org testing/main vim-common 1:6.2-426+1 [3136kB]  
Get:74 http://mirrors.kernel.org testing/main vim 1:6.2-426+1 [864kB]          
Get:75 http://mirrors.kernel.org testing/main apt 0.5.25 [1070kB]              
Get:76 http://mirrors.kernel.org testing/main dselect 1.10.21 [116kB]          
Get:77 http://mirrors.kernel.org testing/main initscripts 2.85-15 [27.6kB]     
Get:78 http://mirrors.kernel.org testing/main libattr1 2.4.16-1 [8986B]        
Get:79 http://mirrors.kernel.org testing/main libblkid1 1.35-6 [40.4kB]        
Get:80 http://mirrors.kernel.org testing/main libcomerr2 1.35-6 [24.4kB]       
Get:81 http://mirrors.kernel.org testing/main libss2 1.35-6 [31.2kB]           
Get:82 http://mirrors.kernel.org testing/main libuuid1 1.35-6 [31.5kB]         
Get:83 http://mirrors.kernel.org testing/main sysv-rc 2.85-15 [33.5kB]         
Get:84 http://mirrors.kernel.org testing/main passwd 1:4.0.3-28.3 [507kB]      
Get:85 http://mirrors.kernel.org testing/main adduser 3.53 [89.5kB]            
Get:86 http://mirrors.kernel.org testing/main bsdmainutils 6.0.14 [182kB]      
Get:87 http://mirrors.kernel.org testing/main net-tools 1.60-10 [273kB]        
Get:88 http://mirrors.kernel.org testing/main ifupdown 0.6.4-4.8 [43.9kB]      
Get:89 http://mirrors.kernel.org testing/main iptables 1.2.9-9 [412kB]         
Get:90 http://mirrors.kernel.org testing/main libconsole 1:0.2.3dbs-52 [136kB] 
Get:91 http://mirrors.kernel.org testing/main libtasn1-0 0.1.2-2 [31.8kB]      
Get:92 http://mirrors.kernel.org testing/main libwrap0 7.6.dbs-3 [29.9kB]      
Get:93 http://mirrors.kernel.org testing/main man-db 2.4.2-16 [607kB]          
Get:94 http://mirrors.kernel.org testing/main tcpd 7.6.dbs-3 [72.2kB]          
Get:95 http://mirrors.kernel.org testing/main netbase 4.17 [39.6kB]            
Get:96 http://mirrors.kernel.org testing/main makedev 2.3.1-69 [39.6kB]        
Get:97 http://mirrors.kernel.org testing/main procps 1:3.2.1-2 [228kB]         
Get:98 http://mirrors.kernel.org testing/main bc 1.06-15 [69.8kB]              
Get:99 http://mirrors.kernel.org testing/main libisc7 1:9.2.3+9.2.4-rc2-1 [172kB]
Get:100 http://mirrors.kernel.org testing/main libssl0.9.7 0.9.7d-2 [716kB]    
Get:101 http://mirrors.kernel.org testing/main libdns11 1:9.2.3+9.2.4-rc2-1 [528kB]
Get:102 http://mirrors.kernel.org testing/main bind9-host 1:9.2.3+9.2.4-rc2-1 [91.5kB]
Get:103 http://mirrors.kernel.org testing/main binutils 2.14.90.0.7-6 [2478kB] 
Get:104 http://mirrors.kernel.org testing/main cpp-3.3 1:3.3.3-6 [1479kB]      
Get:105 http://mirrors.kernel.org testing/main dc 1.06-15 [60.3kB]             
Get:106 http://mirrors.kernel.org testing/main dictionaries-common 0.22.24 [149kB]
Get:107 http://mirrors.kernel.org testing/main liblwres1 1:9.2.3+9.2.4-rc2-1 [90.6kB]
Get:108 http://mirrors.kernel.org testing/main dnsutils 1:9.2.3+9.2.4-rc2-1 [160kB]
Get:109 http://mirrors.kernel.org testing/main doc-linux-text 2004.04-1 [8197kB]
Get:110 http://mirrors.kernel.org testing/main make 3.80-7 [439kB]             
Get:111 http://mirrors.kernel.org testing/main dpkg-dev 1.10.21 [137kB]        
Get:112 http://mirrors.kernel.org testing/main flex 2.5.31-24 [275kB]          
Get:113 http://mirrors.kernel.org testing/main gcc-3.3 1:3.3.3-6 [1569kB]      
Get:114 http://mirrors.kernel.org testing/main libstdc++5-3.3-dev 1:3.3.3-6 [894kB]
Get:115 http://mirrors.kernel.org testing/main g++-3.3 1:3.3.3-6 [1903kB]      
Get:116 http://mirrors.kernel.org testing/main gdb 6.1-2 [2644kB]              
Get:117 http://mirrors.kernel.org testing/main libdb4.0 4.0.14-1.4 [352kB]     
Get:118 http://mirrors.kernel.org testing/main python-newt 0.51.6-3 [36.2kB]   
Get:119 http://mirrors.kernel.org testing/main libnewt0.51 0.51.6-3 [61.0kB]   
Get:120 http://mirrors.kernel.org testing/main lsof 4.71-1 [324kB]             
Get:121 http://mirrors.kernel.org testing/main portmap 5-3 [23.7kB]            
Get:122 http://mirrors.kernel.org testing/main python2.3 2.3.3.91-1 [3172kB]   
Get:123 http://mirrors.kernel.org testing/main reportbug 2.60 [102kB]          
Get:124 http://mirrors.kernel.org testing/main ssh 1:3.8p1-3 [782kB]           
Get:125 http://mirrors.kernel.org testing/main strace 4.5.3-1 [89.6kB]         
Get:126 http://mirrors.kernel.org testing/main time 1.7-19 [34.5kB]            
Get:127 http://mirrors.kernel.org testing/main whiptail 0.51.6-3 [32.8kB]      
Get:128 http://mirrors.kernel.org testing/main whois 4.6.15 [40.0kB]           
Get:129 http://mirrors.kernel.org testing/main apt-utils 0.5.25 [224kB]        
Get:130 http://mirrors.kernel.org testing/main autotools-dev 20040312.1 [53.8kB]
Get:131 http://mirrors.kernel.org testing/main cvs 1:1.12.5-6 [1402kB]         
Get:132 http://mirrors.kernel.org testing/main cxref 1.5f-3 [306kB]            
Get:133 http://mirrors.kernel.org testing/main dbs 0.31 [22.4kB]               
Get:134 http://mirrors.kernel.org testing/main debconf-utils 1.4.25 [32.5kB]   
Get:135 http://mirrors.kernel.org testing/main intltool-debian 0.30+20040212 [23.4kB]
Get:136 http://mirrors.kernel.org testing/main po-debconf 0.8.11 [66.7kB]      
Get:137 http://mirrors.kernel.org testing/main debhelper 4.2.10 [353kB]        
Get:138 http://mirrors.kernel.org testing/main distcc 2.14-1 [150kB]           
Get:139 http://mirrors.kernel.org testing/main emacs21 21.3+1-5 [2156kB]       
Get:140 http://mirrors.kernel.org testing/main emacs21-common 21.3+1-5 [11.0MB]
Get:141 http://mirrors.kernel.org testing/main emacs21-bin-common 21.3+1-5 [155kB]
Get:142 http://mirrors.kernel.org testing/main libungif4g 4.1.0b1-6 [53.3kB]   
Get:143 http://mirrors.kernel.org testing/main fakeroot 0.9.5 [62.8kB]         
Get:144 http://mirrors.kernel.org testing/main initrd-tools 0.1.67 [25.5kB]    
Get:145 http://mirrors.kernel.org testing/main kernel-package 8.090 [299kB]    
Get:146 http://mirrors.kernel.org testing/main libdb3-util 3.2.9-19.1 [54.5kB] 
Get:147 http://mirrors.kernel.org testing/main libdps1 4.3.0.dfsg.1-1 [272kB]  
Get:148 http://mirrors.kernel.org testing/main libpng10-0 1.0.15-5 [119kB]     
Get:149 http://mirrors.kernel.org testing/main libpng2 1.0.15-5 [938B]         
Get:150 http://mirrors.kernel.org testing/main libtasn1-2 0.2.7-2 [45.8kB]     
Get:151 http://mirrors.kernel.org testing/main libtool 1.5.6-1 [626kB]         
Get:152 http://mirrors.kernel.org testing/main libxcursor-dev 1.1.3-1 [35.2kB] 
Get:153 http://mirrors.kernel.org testing/main libxcursor1 1.1.3-1 [27.4kB]    
Get:154 http://mirrors.kernel.org testing/main libxv-dev 4.3.0.dfsg.1-1 [159kB]
Get:155 http://mirrors.kernel.org testing/main libxv1 4.3.0.dfsg.1-1 [139kB]   
Get:156 http://mirrors.kernel.org testing/main module-init-tools 3.0-pre10-3 [72.6kB]
Get:157 http://mirrors.kernel.org testing/main ntpdate 1:4.2.0a-8 [175kB]      
Get:158 http://mirrors.kernel.org testing/main palo 1.5 [49.3kB]               
Get:159 http://mirrors.kernel.org testing/main pciutils 1:2.1.11-8 [133kB]     
Get:160 http://mirrors.kernel.org testing/main pm-dev 4.3.0.dfsg.1-1 [126kB]   
Get:161 http://mirrors.kernel.org testing/main ppp 2.4.2+20040202-3 [310kB]    
Get:162 http://mirrors.kernel.org testing/main pppconfig 2.3.1 [30.5kB]        
Get:163 http://mirrors.kernel.org testing/main pppoeconf 1.0.1 [25.9kB]        
Get:164 http://mirrors.kernel.org testing/main proftpd 1.2.9-12 [354kB]        
Get:165 http://mirrors.kernel.org testing/main proftpd-common 1.2.9-12 [144kB] 
Get:166 http://mirrors.kernel.org testing/main rsync 2.6.2-1 [176kB]           
Get:167 http://mirrors.kernel.org testing/main scsitools 0.7-1 [124kB]         
Get:168 http://mirrors.kernel.org testing/main tasksel 1.51 [172kB]            
Get:169 http://mirrors.kernel.org testing/main xlibmesa-gl 4.3.0.dfsg.1-1 [304kB]
Get:170 http://mirrors.kernel.org testing/main xlibmesa-glu 4.3.0.dfsg.1-1 [369kB]
Get:171 http://mirrors.kernel.org testing/main xbase-clients 4.3.0.dfsg.1-1 [2073kB]
Get:172 http://mirrors.kernel.org testing/main xlibs-static-dev 4.3.0.dfsg.1-1 [922kB]
Get:173 http://mirrors.kernel.org testing/main xterm 4.3.0.dfsg.1-1 [619kB]    
Get:174 http://mirrors.kernel.org testing/main exim 3.36-11 [810kB]            
Get:175 http://mirrors.kernel.org testing/main hddtemp 0.3-beta11-10 [40.2kB]  
Get:176 http://mirrors.kernel.org testing/main xlibs-dev 4.3.0.dfsg.1-1 [125kB]
Fetched 108MB in 16s (6421kB/s)                                                
Preconfiguring packages ...
(Reading database ... 38733 files and directories currently installed.)
Preparing to replace base-files 3.0.14 (using .../base-files_3.0.15_hppa.deb) ...
Unpacking replacement base-files ...
Setting up base-files (3.0.15) ...

(Reading database ... 38733 files and directories currently installed.)
Preparing to replace bash 2.05b-14 (using .../bash_2.05b-15_hppa.deb) ...
Unpacking replacement bash ...
Setting up bash (2.05b-15) ...
Installing new version of config file /etc/skel/.bashrc ...
Installing new version of config file /etc/skel/.bash_profile ...
Installing new version of config file /etc/bash.bashrc ...
Installing new version of config file /etc/bash_completion ...

(Reading database ... 38739 files and directories currently installed.)
Preparing to replace debianutils 2.8.1 (using .../debianutils_2.8.2_hppa.deb) ...
Unpacking replacement debianutils ...
Setting up debianutils (2.8.2) ...

(Reading database ... 38739 files and directories currently installed.)
Preparing to replace dpkg 1.10.20 (using .../archives/dpkg_1.10.21_hppa.deb) ...
Unpacking replacement dpkg ...
Setting up dpkg (1.10.21) ...

(Reading database ... 38741 files and directories currently installed.)
Preparing to replace libc6-dev 2.3.2.ds1-11 (using .../libc6-dev_2.3.2.ds1-12_hppa.deb) ...
Unpacking replacement libc6-dev ...
Preparing to replace debconf-i18n 1.4.16 (using .../debconf-i18n_1.4.25_all.deb) ...
Unpacking replacement debconf-i18n ...
Preparing to replace debconf 1.4.16 (using .../debconf_1.4.25_all.deb) ...
Unpacking replacement debconf ...
Preparing to replace locales 2.3.2.ds1-11 (using .../locales_2.3.2.ds1-12_all.deb) ...
Unpacking replacement locales ...
Preparing to replace libc6 2.3.2.ds1-11 (using .../libc6_2.3.2.ds1-12_hppa.deb) ...
Unpacking replacement libc6 ...
dpkg (subprocess): failed to exec rm for cleanup: No such file or directory
dpkg: error while cleaning up:
 subprocess rm cleanup returned error exit status 2
Could not exec dpkg!
E: Sub-process /usr/bin/dpkg returned an error code (100)
Some errors occurred while unpacking. I'm going to configure the
packages that were installed. This may result in duplicate errors
or errors caused by missing dependencies. This is OK, only the errors
above this message are important. Please fix them and run [I]nstall again
Press enter to continue.

/usr/lib/dpkg/methods/apt/install: line 105: /usr/bin/dpkg: No such file or directory

installation script returned error exit status 100.
Press <enter> to continue.

dselect (subprocess): unable to run installation script process `/usr/lib/dpkg/methods/apt/install': No such file or directory

installation script returned error exit status 2.
Press <enter> to continue.

ion:~# 



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On Sat, May 29, 2004 at 02:14:56PM -0600, Grant Grundler wrote:
> o the rest can be cut/pasted:
> 	cd /target/lib
> 	ln -s ld-2.3.2.so ld.so.1
> 	ln -s libc-2.3.2.so libc.so.6
> 	ln -s libm-2.3.2.so libm.so.6
> 	ln -s libdl-2.3.2.so libdl.so.2
> 	ln -s libutil-2.3.2.so libutil.so.1
> 	cd /
> 	umount /target

You can do this more easily by running
	ldconfig -m /target/lib /target/usr/lib

Then you can check it worked by running chroot /target and seeing if
everything seems happy.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Sat, May 29, 2004 at 09:33:27PM +0100, Matthew Wilcox wrote:
> You can do this more easily by running
> 	ldconfig -m /target/lib /target/usr/lib

~ # ldconfig -m /target/lib/ /target/usr/lib/
ldconfig: invalid option -- m
Try `ldconfig --help' or `ldconfig --usage' for more information.

It looks like that should be "ldconfig -l -r /target"

> Then you can check it worked by running chroot /target and seeing if
> everything seems happy.

After unpacking a proper libc6_*hppa.deb by hand, the chroot worked.
I was able to run dgpkg/dselect in the chroot just fine.

"dpkg -i locales_2.3.2.ds1-12_all.deb" seems to be taking an awful
long time in "Setting up locales" step. I'm not sure if it's because
of the chroot environment or it just takes a while to regen the
locales data. I'll let it run a while and see what happens.
In any case, this box is a D-I test candidate on the next
beta release.

thanks,
grant


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Subject: [parisc-linux] Problems with Web
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Problem #1: Mozilla (including Firefox) will not work.  It opens the main window then stops. It will not got any website or let me open any of the menus (example = preferences). However Epiphany browser works.

Problem #2: I am unable to get java working, and I have been unable to locate a java plugin or j2re for debian hppa.

Any help with the above problems would be appreciated.
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> > Problem #2: I am unable to get java working, and I have been unable to
> > locate a java plugin or j2re for debian hppa.

> Java is being worked on too.

I'll go out on a limb and say that GCC 3.5 will support java on hppa-linux.
It pretty much works now except for unwinding through signal frames.

I don't have any information on other java ports.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> On Mon, May 31, 2004 at 01:43:27PM -0400, John David Anglin wrote:
> > I'll go out on a limb and say that GCC 3.5 will support java on hppa-linux.
> > It pretty much works now except for unwinding through signal frames.
> 
> Awesome!
> Any rough estimate when something will be submitted to debian?

3.5 is in pretty rough shape at the moment.  Based on the previous
release schedule, the 3.5 (4.0?) release is probably about a year away.
I think debian has been experimenting with adding it to an earlier
release but I can't do that (ask Matthias).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > Awesome!
> > Any rough estimate when something will be submitted to debian?

gcc-3.3 in Debian already has the java patches, but it doesn't work 
very well there (lots of test failures). Dave and I are still trying to
sort out what is wrong with signal frame unwinding/libjava with gcc-3.5
and 2.4/2.6 kernels....

sablevm is supported on hppa-linux in switched and direct-threaded mode.
There are some issues with the inlined engine that I haven't had time to
investigate and figure out yet. It works quite well otherwise and is
actively being worked on.

kaffe can probably be made to work, at least in interpreter mode,
without too much work. It used to work ~2 years ago, but has probably 
bitrotted since then. If anyone is interested in working on this and
needs help, let me know.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: [parisc-linux] Debian 2.4.21 on HP Visualize C3000 (EG card)
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I have an HP Viz C3000 with an EG card (I read before installing it was 
supported)

I get this error:

(**) FBDev(0): Using "Shadow Framebuffer"
FBIOPUT_VSCREENINFO: Invalid argument

Fatal server error:
AddScreen/ScreenInit failed for driver 0

Any ideas/suggestions?

Thanks.
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I have two issues that I encounter when using X on my 712/80 running Debian=
 Sarge* (testing):

1) I just installed a new Startech 411 KVM switch last night and now my mou=
se does not work.  It works with exactly the same monitor, keyboard and m=
ouse, through a Cybex (now Avocent) 2-port KVM and when directly connecte=
d.  Any suggestions?

2) I'm running IceWM. When I startx as root, I get the white background tha=
t I have configured in my .preferences file.  I use the same file for reg=
ular users.  When I startx as a regular user, there is no background colo=
ur, only the grey thatch X background.  Could this be a path=3D or permis=
sions issue?

If you need additional information, please let me know.

Thanks for the help in advance,

BB

* I 'apt-get update && apt-get dist-upgrade' nightly.  One could very safel=
y assume that all installed packages are the most current from the testin=
g branch.



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On Wednesday 02 June 2004 16:02, Brian Barber wrote:
> 1) I just installed a new Startech 411 KVM switch last night and now my mouse does not work.  It works with exactly the same monitor, keyboard and mouse, through a Cybex (now Avocent) 2-port KVM and when directly connected.  Any suggestions?

The input drivers in 2.6 still has some problems with this kind of switches. Even on i386 (could you test it on such a machine with the same kernel?).
Else I have right now no other ideas.

helge


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From: tsbogend@alpha.franken.de (Thomas Bogendoerfer)
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Get your Matrox PCI cards out of the basement ...
Date: Thu, 3 Jun 2004 00:17:34 +0200
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....I got the matroxfb driver working on my B2600 including X on top
of fbdev (the mga driver doesn't work yet). So far I just used
a very old Matrox Millenium I. Below is the necessary patch for
2.6.7-rc1.

Have fun,
Thomas.


Index: matroxfb_base.h
===================================================================
RCS file: /home/cvs/parisc/linux-2.6/drivers/video/matrox/matroxfb_base.h,v
retrieving revision 1.3
diff -u -p -r1.3 matroxfb_base.h
--- matroxfb_base.h	18 Oct 2003 00:23:18 -0000	1.3
+++ matroxfb_base.h	2 Jun 2004 21:18:34 -0000
@@ -99,7 +99,7 @@
 #endif
 #endif
 
-#if defined(__alpha__) || defined(__mc68000__)
+#if defined(__alpha__) || defined(__mc68000__) || defined(__hppa__)
 #define READx_WORKS
 #define MEMCPYTOIO_WORKS
 #else
@@ -165,27 +165,27 @@ typedef struct {
 
 #ifdef READx_WORKS
 static inline unsigned int mga_readb(vaddr_t va, unsigned int offs) {
-	return readb(va.vaddr + offs);
+	return fb_readb(va.vaddr + offs);
 }
 
 static inline unsigned int mga_readw(vaddr_t va, unsigned int offs) {
-	return readw(va.vaddr + offs);
+	return fb_readw(va.vaddr + offs);
 }
 
 static inline u_int32_t mga_readl(vaddr_t va, unsigned int offs) {
-	return readl(va.vaddr + offs);
+	return fb_readl(va.vaddr + offs);
 }
 
 static inline void mga_writeb(vaddr_t va, unsigned int offs, u_int8_t value) {
-	writeb(value, va.vaddr + offs);
+	fb_writeb(value, va.vaddr + offs);
 }
 
 static inline void mga_writew(vaddr_t va, unsigned int offs, u_int16_t value) {
-	writew(value, va.vaddr + offs);
+	fb_writew(value, va.vaddr + offs);
 }
 
 static inline void mga_writel(vaddr_t va, unsigned int offs, u_int32_t value) {
-	writel(value, va.vaddr + offs);
+	fb_writel(value, va.vaddr + offs);
 }
 #else
 static inline unsigned int mga_readb(vaddr_t va, unsigned int offs) {


-- 
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good idea.                                 [ Alexander Viro on linux-kernel ]
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Subject: Re: [parisc-linux] Get your Matrox PCI cards out of the basement ...
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On Thu, Jun 03, 2004 at 12:17:34AM +0200, Thomas Bogendoerfer wrote:

> ....I got the matroxfb driver working on my B2600 including X on top
> of fbdev (the mga driver doesn't work yet). So far I just used
> a very old Matrox Millenium I. Below is the necessary patch for
> 2.6.7-rc1.

I tried 2.6.7-rc2-pa1 with your patch (which applies fine),
but I wasn't successful in getting the card to work.
BTW, I'm running Debian/testing updated today.

I tried with the "VGA BIOS" dip switch set on and off,
I also tried the "init", "mem" boot parameters and different
video resolution modes. I even tried to swich it to another PCI slot,
 but no success (the Voodoo2 works in the PCI slots I tried).


The result is similar to what I had with the ATI Rage XL I
also tried to get working ... the graphics card is detected,
and accessible via /dev/fb0, and I can use fbset to change
the resoltions, but I don't see any output on my monitor(s) ...
is simply stays black!

There is also a error message when the matrox is detected on
boot:

beast kernel: matroxfb: Matrox Millennium (PCI) detected
beast kernel: matroxfb: Your Matrox device does not have BIOS
beast kernel: matroxfb: 640x480x8bpp (virtual: 640x3276)
beast kernel: matroxfb: framebuffer at 0xF4800000, mapped to 0xf4800000, size 2097152
beast kernel: fb0: MATROX frame buffer device
beast kernel: fb0: initializing hardware
beast kernel: matroxfb: Pixel PLL not locked after 5 secs
beast kernel: matroxfb: Loop PLL not locked after 5 secs


N.B. the "PLL not locked after 5 secs" messages also appear when
I try to change the resolution with fbset. fbset is busy for some
seconds (at first I thought the process locked up), but then returns
printing out those messages, and another 'fbset' (without arguments)
afterwards confirms that the resolution has been changed.
However the monitor stays black ...

Any hints?

Thanks,
   Max
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Hi,
Just reporting that gsyprf11 (A500-6X) hung recently.
No ping. no console response.
No console output besides iptables LOG entries.

I TOC'd the box and took the following notes:

GR02 0x10104624 sys_call_table64+624
IIA  0x10175cdc cache_alloc_refill+274

If someone wants the entire PIM info, I can post it.

grant
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On Thu, Jun 03, 2004 at 12:17:34AM +0200, Thomas Bogendoerfer wrote:

> ....I got the matroxfb driver working on my B2600 including X on top
> of fbdev (the mga driver doesn't work yet). So far I just used
> a very old Matrox Millenium I. Below is the necessary patch for
> 2.6.7-rc1.

Great news!

I just got mine two days ago (from eBay), and compiled 2.6.7-rc2-pa1
yesterday (with matroxfb support), but haven't tested it yet.

I'll apply your patch and recompile 2.6.7-rc2-pa1 and let you
know whether I have success on my C3000 aswell.

Thanks alot,
   Max


PS: My Matrox as also a (2MB + 6MB expansion board).
Did you pass any special boot flags? What about the VGA BIOS dip switch,
is it set to enable or disable?

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On Wed June 2 2004 22:23, M. Grabert wrote:
> N.B. the "PLL not locked after 5 secs" messages also appear when
> I try to change the resolution with fbset. fbset is busy for some
> seconds (at first I thought the process locked up), but then returns
> printing out those messages, and another 'fbset' (without arguments)
> afterwards confirms that the resolution has been changed.
> However the monitor stays black ...
>
> Any hints?

Monitor? What monitor? How cabled?
There are three flavors of getting sync to the monitor;
composite, sync on green, and separate...
A display card with a SVGA connector on it will produce
one, two or all three flavors - either conncurrently or selectively
depending on card (manufacturerer, age, etc)...
Similar story with monitors...

If using an older HP (or other) high resolution monitor - it
most likely expects "sync on green" (or "separate" if it uses
BNC connectors)...
While your graphics card may have to be set (either manually
or by software) to produce other than "composite".

The short answer:
Your not out of luck yet - It could be something simple.

Mike
PS: the monitor that came with my 720 (5-BNC connectors)
will run with either "separate" or "sync on green" - it doesn't
recognize "composite" (the pc-world standard).
(Once you buy or build a suitable conversion cable)

PPS: SVGA connector:
1 - red
2 - green (sync on green here)
3 - blue
4 - sense 2
5 - self test (and TTL ground)
6 - red ground
7 - green ground
8 - blue ground
9 - key
10 - sync ground
11 - sense 0
12 - sense 1
13 - Hor. Sync (separate or composite)
14 - Vert. Sync
15 - sense 3
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On Thu, Jun 03, 2004 at 04:23:04AM +0100, M. Grabert wrote:
> beast kernel: matroxfb: Pixel PLL not locked after 5 secs
> beast kernel: matroxfb: Loop PLL not locked after 5 secs

bad, either the PLL setup write didn't reach hardware, or
reading of the locked bit of the PLL fails. It looks like
the PCI subsystem behaves differently between my B2600 and
your C3000 :-(

> N.B. the "PLL not locked after 5 secs" messages also appear when
> I try to change the resolution with fbset. fbset is busy for some
> seconds (at first I thought the process locked up), but then returns

makes sense. fbset triggers a reprogramming of the PLL and that
fails aber 5 seconds.

> Any hints?

not at the moment :-(

Can anybody describe the difference of the PCI bus between C3000 and
B2600 ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]
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On Thu June 3 2004 10:13, you wrote:
> On Thu, Jun 03, 2004 at 08:35:25AM -0500, Michael S. Zick wrote:
> > On Wed June 2 2004 22:23, M. Grabert wrote:
>
> SGI Multisync Monitor (NOT sync-on-green capable AFAIK, works fine
> with the Voodoo2 and also with PCs, with the 'normal' VGA cable).

General Rule -
Anything recent enough to call itself "multisync" can sense and use
"sync-on-green" (My limited experience is that anything properly
named "multisync" with an SVGA connector will accept any of the three.)

>
> This monitor doesn't display a "out-of-sync" (you will just hear
> a clicking noise), so just to get sure I also connected it to a
> analogue SVGA LCD display, that tells you if it is out-of-sync.

Ah...
I had that sort of monitor - the noise is relays used to select
sync ranges.
So the monitor is sensing sync pulses (however they get there)
but can't find a matching range (or the pulses aren't stable
enough).
So suspect software setup of the card first -
Sounds like you have (unusable) sync to the monitor.

>
> BTW, I thought that the 'seperate' is actually using the normal
> VGA cable signalling, but seperates each signal/wire physically and
> uses BNC connectors.

I don't have any handy reference for VGA cable/connector - SVGA
connector has them all.

> Eg. I have a PC MultiSync (not here in Ireland) that accepts two
> inputs, VGA connector and 5 BNC.

If you ever get the chance - disconnect the H & V BNCs - it will probably
still work (VGA, 5-BNC and 3-BNC)

> Yeah, I know. I had a SUN Monitor (using sync-on-green), for which
> I built a VGA-to-SyncOnGreen adapter. That was pretty easy to do.
>
> Unfortunately the old HP monitors/graphics cards are using a much more
> complicated, proprietary sync-on-green signalling (and voltage)
> much unlike the SUNs, so building a VGA converter is much more
> complicated. IIRC. (I remember that I found a schematic for those
> HP VGA converters some time ago and I was scared).

I didn't know that - thanks for the info.
I have driven several different Sony multisync monitors with the 720
(and a custom - wire only - cable) - they survived the experience;
but based on the above - it might be good that I didn't do it for
very long.

>
> However Milleniums have (undocumented) hardware SyncOnGreen support,
> and most OSS drivers (eg. XFree86) can enable it, but it is
> disabled by default, at least on the PC version (which I have).

Those messages about not getting the cards PLLs to lock are more
likely to be the lead to getting a picture - but something else might
not be getting its setup also.

Mike
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I've committed PA8800/ZX1 support. It's obviously not complete
and more notes are here:
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2004-June/034204.html

grant
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From: "M. Grabert" <xam@cs.ucc.ie>
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Subject: Success! was Re: [parisc-linux] Get your Matrox ...
Date: Sat, 5 Jun 2004 10:47:19 +0100
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On Thu, Jun 03, 2004 at 03:38:19PM +0200, Thomas Bogendoerfer wrote:
> On Thu, Jun 03, 2004 at 04:23:04AM +0100, M. Grabert wrote:
> >
> > beast kernel: matroxfb: Pixel PLL not locked after 5 secs
> > beast kernel: matroxfb: Loop PLL not locked after 5 secs

I finally was able to put the Matrox in a desktop PC.
It worked without problems! But just to be sure I performed a
graphic card BIOS upgrade (Setup351.exe from Matrox.com).

And then I put it back into my PA machine and ...
... now it works! No more PLL errors!

Now I'm running 1280x1024, 16bit @ 75Hz (32bit also works,
but visibly slower, since it's not accelerated and twice as much
pixel data has to be moved if you move a window. 16bit is fine).
Well, I could run higher resolutions, but I just have a 17" monitor ;)

> bad, either the PLL setup write didn't reach hardware, or
> reading of the locked bit of the PLL fails. It looks like
> the PCI subsystem behaves differently between my B2600 and
> your C3000 :-(
>
> Can anybody describe the difference of the PCI bus between C3000 and
> B2600 ?

I thought there is almost no difference between the B2xxx and C3xxx
series ...

Greetings,
   Max


PS: In case your PA box crashes, the Matrox RAM/config/whatever can
come into a inconsistent state and will refuse to be initialized
properly if you simply reboot (but it will not print out error msgs).
You *must* power cycle the computer (and I believe even disconnect it
physically from the power line for a couple of seconds) in order
to reset the Matrox properly, and be able to use it again.
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From: James Bottomley <James.Bottomley@steeleye.com>
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Subject: Re: [parisc-linux] PA8800/ZX1 support committed to 2.6.7-rc2-pa2
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On Sat, 2004-06-05 at 01:51, Grant Grundler wrote:
> To me, it all suggest the PA8800 32M L2 cache isn't being
> flushed when it might need to be. I don't think it's a new
> problem. Just an old one that's easier to reproduce with
> the bigger cache.

Your explanation is possible, but it's highly unlikely to be an existing
problem.  PA currently uses the big hammer approach to cache coherency
and flushes everything on virtually every large mmu changing operation. 
If there's a caching problem in between the flushes it should have shown
up on much smaller cache machines as well.

Also, when doing the no flushing updates to improve fork/exec, I removed
the global flushing so now any cache mismanagement would become
cumulative and should definitely have been seen.

My money would be on an additional architectural requirement of the
PA8800 (maybe even an existing PA one that the <PA8800 just don't need)
that we don't respect.

James


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From: Stuart Brady <sdbrady@ntlworld.com>
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Subject: [parisc-linux] [PATCH] Harmony fixes
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Hi,

Here's the next set of fixes.  I should point out an annoyance with the
harmony-s16le patch though: apps that use AFMT_S16_NE are broken by this
patch, because the kernel headers incorrectly define AFMT_S16_NE as
AFMT_S16_LE, when it should be AFMT_S16_BE.

harmony-levellimit.patch:
Volume levels passed to the MIXER_WRITE ioctls are now limited to 100,
which prevents bogus levels from interferring with other mixer channels.

harmony-stereolevels.patch:
The MIXER_READ ioctls now return a right_level for the monophonic mixer
channels that is the same as the left_level.

harmony-s16le.patch:
The AFMT_S16_LE format is now rejected, just as all other unsupported
formats are rejected.  As a result, applications which write big-endian
samples with AFMT_S16_LE format set will no longer work.

Thanks,
-- 
Stuart Brady

--rwEMma7ioTxnRzrJ
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="harmony-levellimit.patch"

--- drivers/sound/harmony.c.orig	2004-06-04 15:02:51.000000000 +0100
+++ drivers/sound/harmony.c	2004-06-05 15:27:03.000000000 +0100
@@ -940,6 +940,8 @@
 
 	right_level = (value & 0x0000ff00) >> 8;
 	left_level = value & 0x000000ff;
+	if (right_level > 100) right_level = 100;
+	if (left_level > 100) left_level = 100;
   
 	switch (channel) {
 		case SOUND_MIXER_VOLUME:

--rwEMma7ioTxnRzrJ
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="harmony-stereolevels.patch"

--- drivers/sound/harmony.c.orig	2004-06-04 15:02:51.000000000 +0100
+++ drivers/sound/harmony.c	2004-06-05 15:28:17.000000000 +0100
@@ -918,7 +918,7 @@
 		case SOUND_MIXER_MONITOR:
 			left_level = (harmony.current_gain & GAIN_MA_MASK) >> GAIN_MA_SHIFT;
 			left_level = to_oss_level(MAX_MONITOR_LEVEL-left_level, MAX_MONITOR_LEVEL);
-			return left_level;
+			return (left_level << 8)+left_level;
 	}
 	return -EINVAL;
 }
@@ -967,7 +967,7 @@
 			new_left_level = to_oss_level(MAX_MONITOR_LEVEL-left_level, MAX_MONITOR_LEVEL);
 			harmony.current_gain = (harmony.current_gain & ~GAIN_MA_MASK) | (left_level << GAIN_MA_SHIFT);
 			harmony_mixer_set_gain();
-			return new_left_level;
+			return (new_left_level << 8) + new_left_level;
 	}
 
 	return -EINVAL;

--rwEMma7ioTxnRzrJ
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="harmony-s16le.patch"

--- drivers/sound/harmony.c.orig	2004-06-04 15:02:51.000000000 +0100
+++ drivers/sound/harmony.c	2004-06-05 15:24:31.000000000 +0100
@@ -655,18 +655,17 @@
 			switch (ival) {
 			case AFMT_MU_LAW:	new_format = HARMONY_DF_8BIT_ULAW; break;
 			case AFMT_A_LAW:	new_format = HARMONY_DF_8BIT_ALAW; break;
-			case AFMT_S16_LE:	/* fall through, but not really supported */
-			case AFMT_S16_BE:	new_format = HARMONY_DF_16BIT_LINEAR;
-						ival = AFMT_S16_BE;
-						break; 
+			case AFMT_S16_BE:	new_format = HARMONY_DF_16BIT_LINEAR; break;
 			default: {
 				DPRINTK(KERN_WARNING PFX 
 					"unsupported sound format 0x%04x requested.\n",
 					ival);
-				return -EINVAL;
+				ival = AFMT_S16_BE;
+				return put_user(ival, (int *) arg);
 			}
 			}
 			harmony_set_format(new_format);
+			return 0;
 		} else {
 			switch (harmony.data_format) {
 			case HARMONY_DF_8BIT_ULAW:	ival = AFMT_MU_LAW; break;
@@ -674,8 +673,8 @@
 			case HARMONY_DF_16BIT_LINEAR:	ival = AFMT_U16_BE; break;
 			default: ival = 0;
 			}
+			return put_user(ival, (int *) arg);
 		}
-		return put_user(ival, (int *) arg);
 
 	case SOUND_PCM_READ_RATE:
 		ival = harmony.dac_rate;

--rwEMma7ioTxnRzrJ
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On Sat, Jun 05, 2004 at 09:10:51AM -0500, James Bottomley wrote:
> Your explanation is possible, but it's highly unlikely to be an existing
> problem.  PA currently uses the big hammer approach to cache coherency
> and flushes everything on virtually every large mmu changing operation. 
> If there's a caching problem in between the flushes it should have shown
> up on much smaller cache machines as well.
> 
> Also, when doing the no flushing updates to improve fork/exec, I removed
> the global flushing so now any cache mismanagement would become
> cumulative and should definitely have been seen.

Well, I can only point at the difference in cache size.

> My money would be on an additional architectural requirement of the
> PA8800 (maybe even an existing PA one that the <PA8800 just don't need)
> that we don't respect.

yes - and we've changed chipsets too.

Any good ideas on how to prove IO is coherent?

It might be the same problem that Naresh described as "SCSI DMA problems".
I just happen to be using NFS Root instead.

But I found one bug in Naresh's port that might explain his problem
(wasn't flushing IO TLB properly). It would be interesting to hear
if 2.6.7-rc2-pa3 works better for him.

grant
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On Sat, 2004-06-05 at 16:05, Grant Grundler wrote:
> Well, I can only point at the difference in cache size.

The pa8800 only has a 750k/750k VIPT cache, that's smaller than my
raven.  The 32M L2 cache is PIPT, which doesn't suffer from aliasing or
address remapping effects---in fact, the PA engineers probably arranged
for a fdc not to flush it because there's no point; the only coherency
problems the PIPT cache has is with I/O, which is supposed to be fully
coherent in the ZX1, isn't it.  Thus, we'd only pick up a caching
problems like you describe from the VIPT caches.

> > My money would be on an additional architectural requirement of the
> > PA8800 (maybe even an existing PA one that the <PA8800 just don't need)
> > that we don't respect.
> 
> yes - and we've changed chipsets too.
> 
> Any good ideas on how to prove IO is coherent?

Well, yes, but not without driver magic.  You program a device to take a
piece of data in and rewrite it to a different buffer, then you compare
buffers (making sure the first had a pattern in it and the second was
completely clear).

> It might be the same problem that Naresh described as "SCSI DMA problems".
> I just happen to be using NFS Root instead.
> 
> But I found one bug in Naresh's port that might explain his problem
> (wasn't flushing IO TLB properly). It would be interesting to hear
> if 2.6.7-rc2-pa3 works better for him.

Well, it could be an I/O coherency problem, but if you have one of
those, I'm surprised it boots at all.

James


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On Sat, Jun 05, 2004 at 04:19:24PM -0500, James Bottomley wrote:
> On Sat, 2004-06-05 at 16:05, Grant Grundler wrote:
> The pa8800 only has a 750k/750k VIPT cache, that's smaller than my
> raven.  The 32M L2 cache is PIPT, which doesn't suffer from aliasing or
> address remapping effects---in fact, the PA engineers probably arranged
> for a fdc not to flush it because there's no point; the only coherency
> problems the PIPT cache has is with I/O, which is supposed to be fully
> coherent in the ZX1, isn't it.

Yes - especially since I haven't attempted to add any special support
for 64-bit cards. The "IOMMU Bypass" mode on ZX1 is worth implementing
for 64-bit cards and I might in fact require it for graphics and
infiniband support.


> Thus, we'd only pick up a caching
> problems like you describe from the VIPT caches.

ok.

> > Any good ideas on how to prove IO is coherent?
> 
> Well, yes, but not without driver magic.  You program a device to take a
> piece of data in and rewrite it to a different buffer, then you compare
> buffers (making sure the first had a pattern in it and the second was
> completely clear).

tg3 driver infact has such a test...let me think about that some more.
I might hack the test to be more exhaustive.

> Well, it could be an I/O coherency problem, but if you have one of
> those, I'm surprised it boots at all.

For that bug, one could occasionally end up with a stale IO TLB entry.
And I'm wondering if that's possible when "swapping in" different
parts of an executable binary. To date, I'm under the impression
only executable pages are seeing this problem.  If it were IO,
I should be seeing it with data too - ie .c file cause errors.
Maybe I just need to exercize it more to make that happen.

thanks,
grant
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On Fri, Jun 04, 2004 at 02:25:46PM -0600, Grant Grundler wrote:
> I've committed PA8800/ZX1 support. It's obviously not complete
> and more notes are here:
> http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2004-June/034204.html

One of the errata I forgot to mention was Segmentation faults
or other transient failures. The failures are typically
segfaults but could "internal errors" to gcc or mis-reference
header in cpp. In all cases transient - ie not reproducible
on retry.

On the pa8800 machine, a "time make -j2" of the kernel would fail
in ~10 seconds. "time make" would fail anywhere from 30 seconds
to 6 minutes after starting. Re-starting the job would let it run
another chunk in time.

To me, it all suggest the PA8800 32M L2 cache isn't being
flushed when it might need to be. I don't think it's a new
problem. Just an old one that's easier to reproduce with
the bigger cache.

grant
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On Sat, Jun 05, 2004 at 06:55:09PM -0400, Harry Cochran wrote:
> Is there some
> key sequence I can hit at the "continue" screen to get to "execute a shell"
> (in the i386 world, you have a chance to select several different kernels,
> like bf24, at the beginning ... I don't see this capability in the hppa
> version).

Arrow keys? ie down arrow until it scrolls to "execute a shell".

(oh, that reminds me...I have helge's arrow-key patch in my tree and
offered to test it but don't know quite how.)

> 	Looking at sda1 with "Partition a Hard Disk" says the disk looks like:
> 
> 
>    Name	Flags		Part Type	FS Type		Label		Size(MB)
> /dev/sda1   Boot		Primary	Linux/PA-RISC boot  		59.11
> /dev/sda2               Primary	Linux swap			     519.31
> /dev/sda3             	Primary	Linux				    3715.32

That should be fine IFF sda1 is formatted as ext2 and THEN run palo on it.
And then it can be mounted as /boot. This all has to be done by hand
from "execute a shell" since the installer doesn't know anything about it.

At least I think that's how it should work since palo needs to mark
bits in the ext2 block usage map as "used" or "bad". James?

If sda1 can't be mount as /boot, you need to split sda3 into two parts.
The first part (root) needs to end before 2GB offset. The second part
can be the rest of the disk.

> I notice that you don't have the "Boot" flag turned on for you f0 partition.
> Is this an error on my part?

no. neither firmware nor palo cares about it.

> My sdb disk is another 4GB disk that I have concatenated with sda3 to make
> /.

That's fine. Personally, I would use the second disk as /home or /var.

grant
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On Sun, 2004-06-06 at 11:17, Grant Grundler wrote:
> > 	Looking at sda1 with "Partition a Hard Disk" says the disk looks like:
> > 
> > 
> >    Name	Flags		Part Type	FS Type		Label		Size(MB)
> > /dev/sda1   Boot		Primary	Linux/PA-RISC boot  		59.11
> > /dev/sda2               Primary	Linux swap			     519.31
> > /dev/sda3             	Primary	Linux				    3715.32
> 
> That should be fine IFF sda1 is formatted as ext2 and THEN run palo on it.
> And then it can be mounted as /boot. This all has to be done by hand
> from "execute a shell" since the installer doesn't know anything about it.
> 
> At least I think that's how it should work since palo needs to mark
> bits in the ext2 block usage map as "used" or "bad". James?

Actually, you need to have palo itself format /dev/sda1 using the
--format-as=2 (2 is for ext2) option.  If you use this, you also
*cannot* specify a recovery kernel.

James


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Xref: news.gmane.org gmane.linux.ports.parisc:21712

Hello all,

reading this:
ChangeSet 2004/06/04 16:17:51-07:00, akpm @ osdl.org [diffview]

[PATCH] ia64: uninline find_next_bit on ia64

From: Paul Jackson <pj@sgi.com>

Move the page of code (~700 bytes of instructions) for find_next_bit and
find_next_zero_bit from inline in include/asm-ia64/bitops.h to a real function
in arch/ia64/lib/bitops.c, leaving a declaration and macro wrapper behind.

The other arch's with almost this same code might want to also uninline it:
alpha, parisc, ppc, sh, sparc, sparc64.

These are too big to inline.

Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Mosberger <davidm@hpl.hp.com>

I play to make an equivalent patch for paric:
diff -Naur linux-2.6.a/arch/parisc/lib/bitops.c linux-2.6.b/arch/parisc/lib/bitops.c
--- linux-2.6.a/arch/parisc/lib/bitops.c        2004-06-06 15:16:28.000000000 +0200
+++ linux-2.6.b/arch/parisc/lib/bitops.c        2004-06-06 19:53:09.312540000 +0200
@@ -11,6 +11,7 @@
  #include <linux/spinlock.h>
  #include <asm/system.h>
  #include <asm/atomic.h>
+#include <asm/bitops.h>

  #ifdef CONFIG_SMP
  atomic_lock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = {
@@ -82,3 +83,126 @@
         atomic_spin_unlock_irqrestore(ATOMIC_HASH(ptr), flags);
         return (unsigned long)prev;
  }
+
+/*
+ * This implementation of find_{first,next}_zero_bit was stolen from
+ * Linus' asm-alpha/bitops.h.
+ */
+unsigned long __find_next_zero_bit(void * addr, unsigned long size, unsigned long offset)
+{
+       unsigned long * p = ((unsigned long *) addr) + (offset >> SHIFT_PER_LONG);
+       unsigned long result = offset & ~(BITS_PER_LONG-1);
+       unsigned long tmp;
+
+       if (offset >= size)
+               return size;
+       size -= result;
+       offset &= (BITS_PER_LONG-1);
+       if (offset) {
+               tmp = *(p++);
+               tmp |= ~0UL >> (BITS_PER_LONG-offset);
+               if (size < BITS_PER_LONG)
+                       goto found_first;
+               if (~tmp)
+                       goto found_middle;
+               size -= BITS_PER_LONG;
+               result += BITS_PER_LONG;
+       }
+       while (size & ~(BITS_PER_LONG -1)) {
+               if (~(tmp = *(p++)))
+                       goto found_middle;
+               result += BITS_PER_LONG;
+               size -= BITS_PER_LONG;
+       }
+       if (!size)
+               return result;
+       tmp = *p;
+found_first:
+       tmp |= ~0UL << size;
+found_middle:
+       return result + ffz(tmp);
+}
+EXPORT_SYMBOL(__find_next_zero_bit);
+
+
+unsigned long __find_next_bit(unsigned long *addr, unsigned long size, unsigned long offset)
+{
+       unsigned long *p = addr + (offset >> 6);
+       unsigned long result = offset & ~(BITS_PER_LONG-1);
+       unsigned long tmp;
+
+       if (offset >= size)
+               return size;
+       size -= result;
+       offset &= (BITS_PER_LONG-1);
+       if (offset) {
+               tmp = *(p++);
+               tmp &= (~0UL << offset);
+               if (size < BITS_PER_LONG)
+                       goto found_first;
+               if (tmp)
+                       goto found_middle;
+               size -= BITS_PER_LONG;
+               result += BITS_PER_LONG;
+       }
+       while (size & ~(BITS_PER_LONG-1)) {
+               if ((tmp = *(p++)))
+                       goto found_middle;
+               result += BITS_PER_LONG;
+               size -= BITS_PER_LONG;
+       }
+       if (!size)
+               return result;
+       tmp = *p;
+
+found_first:
+       tmp &= (~0UL >> (BITS_PER_LONG - size));
+       if (tmp == 0UL)        /* Are any bits set? */
+               return result + size; /* Nope. */
+found_middle:
+       return result + __ffs(tmp);
+}
+EXPORT_SYMBOL(__find_next_bit);
+
+/*
+ * This implementation of ext2_find_{first,next}_zero_bit was stolen from
+ * Linus' asm-alpha/bitops.h and modified for a big-endian machine.
+ */
+
+extern unsigned long __ext2_find_next_zero_bit(void *addr,
+               unsigned long size, unsigned long offset)
+{
+       unsigned int *p = ((unsigned int *) addr) + (offset >> 5);
+       unsigned int result = offset & ~31UL;
+       unsigned int tmp;
+
+       if (offset >= size)
+               return size;
+       size -= result;
+       offset &= 31UL;
+       if (offset) {
+               tmp = cpu_to_le32p(p++);
+               tmp |= ~0UL >> (32-offset);
+               if (size < 32)
+                       goto found_first;
+               if (tmp != ~0U)
+                       goto found_middle;
+               size -= 32;
+               result += 32;
+       }
+       while (size >= 32) {
+               if ((tmp = cpu_to_le32p(p++)) != ~0U)
+                       goto found_middle;
+               result += 32;
+               size -= 32;
+       }
+       if (!size)
+               return result;
+       tmp = cpu_to_le32p(p);
+found_first:
+       tmp |= ~0U << size;
+found_middle:
+       return result + ffz(tmp);
+}
+EXPORT_SYMBOL(__ext2_find_next_zero_bit);
+
diff -Naur linux-2.6.a/include/asm-parisc/bitops.h linux-2.6.b/include/asm-parisc/bitops.h
--- linux-2.6.a/include/asm-parisc/bitops.h     2004-06-06 15:17:31.000000000 +0200
+++ linux-2.6.b/include/asm-parisc/bitops.h     2004-06-06 19:53:20.232540000 +0200
@@ -354,78 +354,15 @@
  #define find_first_zero_bit(addr, size) \
         find_next_zero_bit((addr), (size), 0)

-static __inline__ unsigned long find_next_zero_bit(void * addr, unsigned long size, unsigned long offset)
-{
-       unsigned long * p = ((unsigned long *) addr) + (offset >> SHIFT_PER_LONG);
-       unsigned long result = offset & ~(BITS_PER_LONG-1);
-
-       if (offset >= size)
-               return size;
-       size -= result;
-       offset &= (BITS_PER_LONG-1);
-       if (offset) {
-               tmp = *(p++);
-               tmp |= ~0UL >> (BITS_PER_LONG-offset);
-               if (size < BITS_PER_LONG)
-                       goto found_first;
-               if (~tmp)
-                       goto found_middle;
-               size -= BITS_PER_LONG;
-               result += BITS_PER_LONG;
-       }
-       while (size & ~(BITS_PER_LONG -1)) {
-               if (~(tmp = *(p++)))
-                       goto found_middle;
-               result += BITS_PER_LONG;
-               size -= BITS_PER_LONG;
-       }
-       if (!size)
-               return result;
-       tmp = *p;
-found_first:
-       tmp |= ~0UL << size;
-found_middle:
-       return result + ffz(tmp);
-}
+#define find_next_zero_bit(addr, size, offset) \
+               __find_next_zero_bit((addr), (size), (offset))

-static __inline__ unsigned long find_next_bit(unsigned long *addr, unsigned long size, unsigned long offset)
-{
-       unsigned long *p = addr + (offset >> 6);
-       unsigned long result = offset & ~(BITS_PER_LONG-1);
-       unsigned long tmp;
-
-       if (offset >= size)
-               return size;
-       size -= result;
-       offset &= (BITS_PER_LONG-1);
-       if (offset) {
-               tmp = *(p++);
-               tmp &= (~0UL << offset);
-               if (size < BITS_PER_LONG)
-                       goto found_first;
-               if (tmp)
-                       goto found_middle;
-               size -= BITS_PER_LONG;
-               result += BITS_PER_LONG;
-       }
-       while (size & ~(BITS_PER_LONG-1)) {
-               if ((tmp = *(p++)))
-                       goto found_middle;
-               result += BITS_PER_LONG;
-               size -= BITS_PER_LONG;
-       }
-       if (!size)
-               return result;
-       tmp = *p;
-
-found_first:
-       tmp &= (~0UL >> (BITS_PER_LONG - size));
-       if (tmp == 0UL)        /* Are any bits set? */
-               return result + size; /* Nope. */
-found_middle:
-       return result + __ffs(tmp);
-}
+extern unsigned long __find_next_zero_bit(void * addr, unsigned long size, unsigned long offset);
+
+#define find_next_bit(addr, size, offset) \
+               __find_next_bit((addr), (size), (offset))
+
+extern unsigned long __find_next_bit(unsigned long *addr, unsigned long size, unsigned long offset);

  /**
   * find_first_bit - find the first set bit in a memory region
@@ -474,41 +411,10 @@
  #define ext2_find_first_zero_bit(addr, size) \
          ext2_find_next_zero_bit((addr), (size), 0)

-extern __inline__ unsigned long ext2_find_next_zero_bit(void *addr,
-       unsigned long size, unsigned long offset)
-{
-       unsigned int *p = ((unsigned int *) addr) + (offset >> 5);
-       unsigned int result = offset & ~31UL;
-       unsigned int tmp;
-
-       if (offset >= size)
-               return size;
-       size -= result;
-       offset &= 31UL;
-       if (offset) {
-               tmp = cpu_to_le32p(p++);
-               tmp |= ~0UL >> (32-offset);
-               if (size < 32)
-                       goto found_first;
-               if (tmp != ~0U)
-                       goto found_middle;
-               size -= 32;
-               result += 32;
-       }
-       while (size >= 32) {
-               if ((tmp = cpu_to_le32p(p++)) != ~0U)
-                       goto found_middle;
-               result += 32;
-               size -= 32;
-       }
-       if (!size)
-               return result;
-       tmp = cpu_to_le32p(p);
-found_first:
-       tmp |= ~0U << size;
-found_middle:
-       return result + ffz(tmp);
-}
+#define ext2_find_next_zero_bit(addr, size, offset) \
+               __ext2_find_next_zero_bit((addr), (size), (offset))
+
+extern unsigned long __ext2_find_next_zero_bit(void *addr, unsigned long size, unsigned long offset);

  /* Bitmap functions for the minix filesystem.  */
  #define minix_test_and_set_bit(nr,addr) ext2_set_bit(nr,addr)
========><======

What's your opinion about its relievence for parisc?

hth,
	Joel
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 parisc-linux@lists.parisc-linux.org
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On Sun, Jun 13, 2004 at 01:25:01PM +0100, Colin Watson wrote:
> base-installer has no intelligence about hppa, and it should. How would
> one go about detecting whether the 32-bit or the 64-bit kernel is
> appropriate? Is it OK to install SMP kernels regardless, or do we need
> to detect UP vs. SMP too?
> 
Hmm. It's a problem because the firmware of some machines will only
boot 64-bit kernels, some will only boot 32-bit, and some will boot
either.

The best thing to do, would be to always install 32bit by default. As
when a person tries to boot on a machine that only has 64-bit firmware,
they will have to manually edit the PALO commandline to use vmlinux64, which
will result in them having a parisc64 uname -m entry. So I'd think 
install based on the uname -m entry would work.

There's no problem, afaik, booting SMP on UP machines, so that should be
fine.

I was going to take a look at this, but I cannot seem to figure out how
to check out d-i, and the daily svn snapshot is b0rked.

I'm going to copy the parisc-linux list with this, for comments.

Cheers,
-- 
Kyle McMartin
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On Sun, Jun 13, 2004 at 12:41:47PM -0400, Kyle McMartin wrote:
> On Sun, Jun 13, 2004 at 01:25:01PM +0100, Colin Watson wrote:
> > base-installer has no intelligence about hppa, and it should. How would
> > one go about detecting whether the 32-bit or the 64-bit kernel is
> > appropriate? Is it OK to install SMP kernels regardless, or do we need
> > to detect UP vs. SMP too?
> 
> Hmm. It's a problem because the firmware of some machines will only
> boot 64-bit kernels, some will only boot 32-bit, and some will boot
> either.
> 
> The best thing to do, would be to always install 32bit by default. As
> when a person tries to boot on a machine that only has 64-bit firmware,
> they will have to manually edit the PALO commandline to use vmlinux64, which
> will result in them having a parisc64 uname -m entry. So I'd think 
> install based on the uname -m entry would work.

OK, that's something we can do. I'm buried in base-installer at the
moment anyway, so I'll have a go at this.

> There's no problem, afaik, booting SMP on UP machines, so that should be
> fine.

Good. That matches some other architectures.

> I'm going to copy the parisc-linux list with this, for comments.

Note that I don't read this list, so please be sure to copy
254073@bugs.debian.org on replies.

Thanks,

-- 
Colin Watson                                  [cjwatson@flatline.org.uk]
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Subject: [parisc-linux] Re: [PATCH] Harmony fixes
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tested and committed, enjoy.

Le samedi, 5 juin 2004, =E0 20:45 Europe/Paris, Stuart Brady a =E9crit :

> harmony-levellimit.patch:
> Volume levels passed to the MIXER_WRITE ioctls are now limited to 100,
> which prevents bogus levels from interferring with other mixer=20
> channels.
>
> harmony-stereolevels.patch:
> The MIXER_READ ioctls now return a right_level for the monophonic =
mixer
> channels that is the same as the left_level.
>
> harmony-s16le.patch:
> The AFMT_S16_LE format is now rejected, just as all other unsupported
> formats are rejected.  As a result, applications which write =
big-endian
> samples with AFMT_S16_LE format set will no longer work.=

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Le lundi, 7 juin 2004, =E0 19:40 Europe/Paris, Harry Cochran a =E9crit :

> Hi Thibaut,
>
> =A0=A0=A0=A0=A0=A0=A0 After fighting some other fires, I'm back to the =
J6000 smp=20
> problem. I have to admit that I've never built a custom kernel before=20=

> (although I have had gcc problems before :-). Are you sure I can't use=20=

> any of the kernels listed on the=20
> http://cvs.parisc-linux.org/download/linux-2.4/ page? Also, I have to=20=

> admit that I tried putting=20
> "http://cvs.parisc-linux.org/download/linux-2.4/autobuild/32smp/ ./"=20=

> in sources.list and doing an apt-cache search=20
> palinux-32smp-2.4.26-pa4. This returned "Couldn't stat source package=20=

> list" (2 no such file or directory). If I can use a pre-built kernel,=20=

> I would really appreciate your insight into what I put into=20
> sources.list and then the exact form of the apt-get install that I=20
> should do. If I really do need to build a custom kernel, I'll have to=20=

> go off and figure out how to do that.
>
I never said you couldn't use autobuild kernels

and your apt question should be asked to the list, since i don't know=20
why it doesn't work, and that your experience may be useful to others.

finally, both parisc-linux and pateam websites have docs on how to=20
build custom kernels.

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/=

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Le lundi, 7 juin 2004, =E0 19:40 Europe/Paris, Harry Cochran a =E9crit :


<excerpt><fontfamily><param>Arial</param><smaller>Hi Thibaut,


=A0=A0=A0=A0=A0=A0=A0 After fighting some other fires, I'm back to the =
J6000 smp
problem. I have to admit that I've never built a custom kernel before
(although I have had gcc problems before :-). Are you sure I can't use
any of the kernels listed on the
=
<underline><color><param>0000,6666,0000</param>http://cvs.parisc-linux.org=
/download/linux-2.4/</color></underline>
page? Also, I have to admit that I tried putting
=
"<underline><color><param>0000,0000,0000</param>http://cvs.parisc-linux.or=
g/download/linux-2.4/autobuild/32smp/</color></underline>
./" in sources.list and doing an apt-cache search
palinux-32smp-2.4.26-pa4. This returned "Couldn't stat source package
list" (2 no such file or directory). If I can use a pre-built kernel,
I would really appreciate your insight into what I put into
sources.list and then the exact form of the apt-get install that I
should do. If I really do need to build a custom kernel, I'll have to
go off and figure out how to do that.</smaller></fontfamily>


</excerpt>I never said you couldn't use autobuild kernels


and your apt question should be asked to the list, since i don't know
why it doesn't work, and that your experience may be useful to others.


finally, both parisc-linux and pateam websites have docs on how to
build custom kernels.


HTH,



Thibaut VARENE

The PA/Linux ESIEE Team

http://www.pateam.org/=

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Subject: Re: [parisc-linux] PA8800/ZX1 support committed to 2.6.7-rc2-pa2
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Xref: news.gmane.org gmane.linux.ports.parisc:21717

On Sat, Jun 05, 2004 at 04:19:24PM -0500, James Bottomley wrote:
> The pa8800 only has a 750k/750k VIPT cache, that's smaller than my
> raven.  The 32M L2 cache is PIPT, which doesn't suffer from aliasing or
> address remapping effects---in fact, the PA engineers probably arranged
> for a fdc not to flush it because there's no point; the only coherency
> problems the PIPT cache has is with I/O, which is supposed to be fully
> coherent in the ZX1, isn't it.  Thus, we'd only pick up a caching
> problems like you describe from the VIPT caches.


Well, I talked to another HP engineer who deals with this stuff
more than I do and came away with some observations:

1) values returned from the PDC_CACHE_INFO call (stride, block, loop)
   are supposed to be "universal" - ie apply to all levels of cache.
   The values are intended to work in the "architected cache flush loop".
   Does that only apply for the FDCE loop?
   What about FDC/FIC loops?


2) values from the C8000 prototype could be wrong. Output and diff
   are appended below. Basically it's telling me to traverse
   the entire 32MB cache with 128 byte stride.

3) I'm not sure if loop=1 indicates 2-way associative or direct mapped.
   I expect direct mapped.  I need to re-read the docs.
   Maybe someone knows? jsm?


Console output from debug info I enabled/added:
| model 9000/785/C8000
| ic_size 2000000 dc_size 2000000 it_size f0
| DC  base 0x0 stride 0x80 count 0x40000 loop 0x1
| dc_conf = 0x1882000  alias 0 blk 1 line 4 shift 1
|         wt 0 sh 0 cst 1 assoc 0
| IC  base 0x0 stride 0x80 count 0x40000 loop 0x1
| ic_conf = 0x1882000  alias 0 blk 1 line 4 shift 1
|         wt 0 sh 0 cst 1 assoc 0
| D-TLB conf: sh 3 page 1 cst 1 aid 0 pad1 0
| I-TLB conf: sh 3 page 1 cst 1 aid 3 pad1 0
| dcache_stride 128   icache_stride 128
| parisc_cache_init: Only equivalent aliasing supported!


The difference between D-TLB and I-TLB was interesting but
I don't know what to make of it.

I noticed HPUX was calculating the stride differently than
parisc-linux. I didn't realize until later the difference
could be due to older/newer firmware versions and/or differences
in the "architected loop" initialization.

Changing "4 + cnf.cc_shift" (stride=128) to "3 + cnf.cc_shift"
(stride=64) didn't help. This implies the stride is not the problem.

grant


Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/cache.c,v
retrieving revision 1.17
diff -u -p -r1.17 cache.c
--- arch/parisc/kernel/cache.c	30 May 2004 18:57:23 -0000	1.17
+++ arch/parisc/kernel/cache.c	11 Jun 2004 05:33:38 -0000
@@ -123,47 +123,56 @@ parisc_cache_init(void)
 	if (pdc_cache_info(&cache_info) < 0)
 		panic("parisc_cache_init: pdc_cache_info failed");
 
-#if 0
-	printk(KERN_DEBUG "ic_size %lx dc_size %lx it_size %lx pdc_cache_info %d*long pdc_cache_cf %d\n",
-	    cache_info.ic_size,
-	    cache_info.dc_size,
-	    cache_info.it_size,
-	    sizeof (struct pdc_cache_info) / sizeof (long),
-	    sizeof (struct pdc_cache_cf)
-	);
-
-	printk(KERN_DEBUG "dc base %x dc stride %x dc count %x dc loop %d\n",
-	    cache_info.dc_base,
-	    cache_info.dc_stride,
-	    cache_info.dc_count,
-	    cache_info.dc_loop);
-
-	printk(KERN_DEBUG "dc conf: alias %d block %d line %d wt %d sh %d cst %d assoc %d\n",
-	    cache_info.dc_conf.cc_alias,
-	    cache_info.dc_conf.cc_block,
-	    cache_info.dc_conf.cc_line,
-	    cache_info.dc_conf.cc_wt,
-	    cache_info.dc_conf.cc_sh,
-	    cache_info.dc_conf.cc_cst,
-	    cache_info.dc_conf.cc_assoc);
-
-	printk(KERN_DEBUG "ic conf: alias %d block %d line %d wt %d sh %d cst %d assoc %d\n",
-	    cache_info.ic_conf.cc_alias,
-	    cache_info.ic_conf.cc_block,
-	    cache_info.ic_conf.cc_line,
-	    cache_info.ic_conf.cc_wt,
-	    cache_info.ic_conf.cc_sh,
-	    cache_info.ic_conf.cc_cst,
-	    cache_info.ic_conf.cc_assoc);
+#if 1
+	printk("ic_size %lx dc_size %lx it_size %lx\n",
+		cache_info.ic_size,
+		cache_info.dc_size,
+		cache_info.it_size);
+
+	printk("DC  base 0x%lx stride 0x%lx count 0x%lx loop 0x%lx\n",
+		cache_info.dc_base,
+		cache_info.dc_stride,
+		cache_info.dc_count,
+		cache_info.dc_loop);
+
+	printk("dc_conf = 0x%lx  alias %d blk %d line %d shift %d\n",
+		*(unsigned long *) (&cache_info.dc_conf),
+		cache_info.dc_conf.cc_alias,
+		cache_info.dc_conf.cc_block,
+		cache_info.dc_conf.cc_line,
+		cache_info.dc_conf.cc_shift);
+	printk("	wt %d sh %d cst %d assoc %d\n",
+		cache_info.dc_conf.cc_wt,
+		cache_info.dc_conf.cc_sh,
+		cache_info.dc_conf.cc_cst,
+		cache_info.dc_conf.cc_assoc);
+
+	printk("IC  base 0x%lx stride 0x%lx count 0x%lx loop 0x%lx\n",
+		cache_info.ic_base,
+		cache_info.ic_stride,
+		cache_info.ic_count,
+		cache_info.ic_loop);
+
+	printk("ic_conf = 0x%lx  alias %d blk %d line %d shift %d\n",
+		*(unsigned long *) (&cache_info.ic_conf),
+		cache_info.ic_conf.cc_alias,
+		cache_info.ic_conf.cc_block,
+		cache_info.ic_conf.cc_line,
+		cache_info.ic_conf.cc_shift);
+	printk("	wt %d sh %d cst %d assoc %d\n",
+		cache_info.ic_conf.cc_wt,
+		cache_info.ic_conf.cc_sh,
+		cache_info.ic_conf.cc_cst,
+		cache_info.ic_conf.cc_assoc);
 
-	printk(KERN_DEBUG "dt conf: sh %d page %d cst %d aid %d pad1 %d \n",
+	printk("D-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
 	    cache_info.dt_conf.tc_sh,
 	    cache_info.dt_conf.tc_page,
 	    cache_info.dt_conf.tc_cst,
 	    cache_info.dt_conf.tc_aid,
 	    cache_info.dt_conf.tc_pad1);
 
-	printk(KERN_DEBUG "it conf: sh %d page %d cst %d aid %d pad1 %d \n",
+	printk("I-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
 	    cache_info.it_conf.tc_sh,
 	    cache_info.it_conf.tc_page,
 	    cache_info.it_conf.tc_cst,
@@ -180,10 +189,17 @@ parisc_cache_init(void)
 		split_tlb = 1;
 	}
 
-	dcache_stride = (1 << (cache_info.dc_conf.cc_block + 3)) *
-						cache_info.dc_conf.cc_line;
-	icache_stride = (1 << (cache_info.ic_conf.cc_block + 3)) *
-						cache_info.ic_conf.cc_line;
+#if 0
+#define CAFL_STRIDE(cnf) ((1 << (cnf.cc_block + 3)) * cnf.cc_line)
+#else
+#define CAFL_STRIDE(cnf) (cnf.cc_block * (cnf.cc_line << (4 + cnf.cc_shift)))
+#endif
+	dcache_stride = CAFL_STRIDE(cache_info.dc_conf);
+	icache_stride = CAFL_STRIDE(cache_info.ic_conf);
+#undef CAFL_STRIDE
+
+printk("dcache_stride %d   icache_stride %d\n", dcache_stride, icache_stride);
+
 #ifndef CONFIG_PA20
 	if (pdc_btlb_info(&btlb_info) < 0) {
 		memset(&btlb_info, 0, sizeof btlb_info);
@@ -192,8 +208,8 @@ parisc_cache_init(void)
 
 	if ((boot_cpu_data.pdc.capabilities & PDC_MODEL_NVA_MASK) ==
 						PDC_MODEL_NVA_UNSUPPORTED) {
-		printk(KERN_WARNING "Only equivalent aliasing supported\n");
-#ifndef CONFIG_SMP
+		printk(KERN_WARNING "parisc_cache_init: Only equivalent aliasing supported!\n");
+#if 0
 		panic("SMP kernel required to avoid non-equivalent aliasing");
 #endif
 	}
Index: include/asm-parisc/pdc.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pdc.h,v
retrieving revision 1.7
diff -u -p -r1.7 pdc.h
--- include/asm-parisc/pdc.h	4 Jun 2004 19:36:53 -0000	1.7
+++ include/asm-parisc/pdc.h	11 Jun 2004 05:34:04 -0000
@@ -346,10 +346,10 @@ struct pdc_cache_cf {		/* for PDC_CACHE 
 #ifdef __LP64__
 		cc_padW:32,
 #endif
-		cc_alias:4,	/* alias boundaries for virtual addresses   */
+		cc_alias: 4,	/* alias boundaries for virtual addresses   */
 		cc_block: 4,	/* to determine most efficient stride */
 		cc_line	: 3,	/* maximum amount written back as a result of store (multiple of 16 bytes) */
-		cc_pad0 : 2,	/* reserved */
+		cc_shift: 2,	/* how much to shift cc_block left */
 		cc_wt	: 1,	/* 0 = WT-Dcache, 1 = WB-Dcache */
 		cc_sh	: 2,	/* 0 = separate I/D-cache, else shared I/D-cache */
 		cc_cst  : 3,	/* 0 = incoherent D-cache, 1=coherent D-cache */
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Xref: news.gmane.org gmane.linux.ports.parisc:21718

> Changing "4 + cnf.cc_shift" (stride=128) to "3 + cnf.cc_shift"
> (stride=64) didn't help. This implies the stride is not the problem.

The stride in the rest of the PA architecture is either 16 or 32; I'd be
surprised if the L1 stide in the 8800 were bigger (smaller stride is
actually more efficient since it gives finer control over caching).

Could you just hard code it to 32 to make assureances certain that the
stride value isn't the source of the segv's?

Thanks,

James


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On Fri, Jun 11, 2004 at 10:02:29AM -0400, James Bottomley wrote:
> > Changing "4 + cnf.cc_shift" (stride=128) to "3 + cnf.cc_shift"
> > (stride=64) didn't help. This implies the stride is not the problem.
> 
> The stride in the rest of the PA architecture is either 16 or 32; I'd be
> surprised if the L1 stride in the 8800 were bigger (smaller stride is
> actually more efficient since it gives finer control over caching).

I always thought the stride was the smallest cacheline size.

> Could you just hard code it to 32 to make assureances certain that the
> stride value isn't the source of the segv's?

It didn't help. sshd is still not working.
I'll try 16 as well.

pa8800:~# dmesg | fgrep sshd                                                    
do_page_fault() pid=457 command='sshd' type=15 address=0x80fc43ac               
do_page_fault() pid=461 command='sshd' type=6 address=0x00000003                
sshd(463): unaligned access to 0x00000000faf0105b at ip=0x00000000406e536b      
sshd(463): unaligned access to 0x00000000faf0107b at ip=0x00000000406e537f      
do_page_fault() pid=463 command='sshd' type=15 address=0x00000002               
do_page_fault() pid=465 command='sshd' type=15 address=0x0000000c               
do_page_fault() pid=469 command='sshd' type=15 address=0x0000000c               
sshd (pid 471): Illegal instruction (code 8) at 0000000000074b7b                


But I have to wonder why do RC scripts work?
And why can I login on the console?
I thought all of those things would fork/exec other binaries as well.
Given everything is coming over NFS root, I can't blame IO either.

grant
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On Fri, Jun 11, 2004 at 10:02:29AM -0400, James Bottomley wrote:
> Could you just hard code it to 32 to make assureances certain that the
> stride value isn't the source of the segv's?

stride=16 doesn't work either.
sshd only page faults (so far) and sometimes "hangs" (^C to kill it).
Out of 9 attempts, I get one hang and 4 page faults.
"Connection closed" on all except the "hang".

Using console, I can
o apt-get update
o apt-get upgrade
o ssh -l grundler 192.168.1.1

So far, everything from the console works.
I'm not sure why sshd is having such a hard time.
I still don't think "stride" is the problem.

grant
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Subject: [parisc-linux] This ones for you ggg! (fixed dpkg)
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ggg,

Tired of dpkg hosing your system? In place untarring hurting when the
untar fails? No more worries! New dpkg only untars properly when it's
sure to pass!

Would you care to test, or rather would anyone care to test, a new
improved dpkg that forces a dry-run unpack before the actual unpack.
That way corrupted tarballs don't hose your system.

I think dpkg should be more robust so I made it so...

http://parisc-linux.org/~carlos/debian-work/dpkg/

The only way to make dpkg better is:

0. Make the above dry-run check an option so dpkg runs faster
   at the expense of less checking.
1. Try to unpack control.tar.gz to get an idea of the md5sum
2. Add another ar archive member with md5sum inside.
 - Bump deb to version 3.0

c.

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On Fri, Jun 11, 2004 at 03:37:16PM -0400, Carlos O'Donell wrote:
> Tired of dpkg hosing your system?

Given the enthusiasm...

...
> I think dpkg should be more robust so I made it so...
> http://parisc-linux.org/~carlos/debian-work/dpkg/

...I felt obliged to test this. Installed on "ios" (aka gsyprf7).
And let dselect do it's thing. No problems.
This is an "unstable" system and 53 packages got upgraded.
(63MB total)

thanks!
grant
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Grant:

> Well, I talked to another HP engineer who deals with this stuff
> more than I do and came away with some observations:
>=20
> 1) values returned from the PDC_CACHE_INFO call (stride, block, loop)
>    are supposed to be "universal" - ie apply to all levels of cache.
>    The values are intended to work in the "architected cache=20
> flush loop".
>    Does that only apply for the FDCE loop?
>    What about FDC/FIC loops?

PDC_CACHE returns parameters for both the architected FDCE loop and the
architected FICE loop.  They are D_base, D_count, D_loop, and D_stride =
for the
FDCE loop and I_base, I_count, I_loop, and I_stride for the FICE loop.

The PDC_CACHE description also contains a Programming Note which explain =
how you
might use the values in the various bit-fields from two other returned
parameters (D_conf and I_conf) to flush a range of addresses using FDC =
or FIC.
Technically, these aren't "architected loops", they're just a =
suggestion.

> 2) values from the C8000 prototype could be wrong. Output and diff
>    are appended below. Basically it's telling me to traverse
>    the entire 32MB cache with 128 byte stride.

I checked the Mako ERS; it clearly describes what parameters PDC must =
return in
order for the flush loops to work.  The values you show match those in =
the ERS.

> 3) I'm not sure if loop=3D1 indicates 2-way associative or=20
> direct mapped.
>    I expect direct mapped.  I need to re-read the docs.
>    Maybe someone knows? jsm?

You should not think about the FDCE/FICE parameters as corresponding to =
any
particular property of the given cache.  They are simply abstract values =
to plug
into the architected flush loops in order to make them flush the whole =
cache.
For example, since the Mako caches are all 4-way associative, you might =
think
that the "loop" parameter(s) would be 4.  However, because of the design =
of the
Mako FDCE and FICE instructions, executing with "loop" equal 4, and with =
"count"
equal to 1/4 of its current value, would (sometimes) fail to flush the =
whole
cache.

> Console output from debug info I enabled/added:
> | model 9000/785/C8000
> | ic_size 2000000 dc_size 2000000 it_size f0
> | DC  base 0x0 stride 0x80 count 0x40000 loop 0x1
> | dc_conf =3D 0x1882000  alias 0 blk 1 line 4 shift 1
> |         wt 0 sh 0 cst 1 assoc 0
> | IC  base 0x0 stride 0x80 count 0x40000 loop 0x1
> | ic_conf =3D 0x1882000  alias 0 blk 1 line 4 shift 1
> |         wt 0 sh 0 cst 1 assoc 0
> | D-TLB conf: sh 3 page 1 cst 1 aid 0 pad1 0
> | I-TLB conf: sh 3 page 1 cst 1 aid 3 pad1 0
> | dcache_stride 128   icache_stride 128
> | parisc_cache_init: Only equivalent aliasing supported!
>=20
>=20
> The difference between D-TLB and I-TLB was interesting but
> I don't know what to make of it.
>=20
> I noticed HPUX was calculating the stride differently than
> parisc-linux. I didn't realize until later the difference
> could be due to older/newer firmware versions and/or differences
> in the "architected loop" initialization.

For FDC/FIC loops, the architecture was changed to handle machines with =
line
sizes larger than 64 bytes (like Mako, where it's 128).  The correct =
equation,
which will work on both new and old machines, is:

  stride =3D (1 << (block - 1)) * ((line * 16) << shift)

> Changing "4 + cnf.cc_shift" (stride=3D128) to "3 + cnf.cc_shift"
> (stride=3D64) didn't help. This implies the stride is not the problem.

If the "4 + cnf.cc_shift" is trying to compute a stride, then this may =
be the
source of the problem.  Try changing it as above.

 -- Jim

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Hi

I recently bought a Visualize C3600, my first PARISC box. After playing
around with HP-UX for some days I would like to install my favoured OS ;)
on this really nice machine. FXE-graphics isn't supported so I do this via
serial line. I tried Gentoo (2.4.26-pa1) and an older Debian netinstall
(2.4.20) but I don't get far.  All I get looks like this:

---------------------------------------------------------------------------

Command line for kernel: ' root=/dev/ram0 init=/linuxrc cdroot
looptype=normal l
oop=/livecd.loop console=ttyS0 palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Selected ramdisk: initrd from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing...
This box can boot either 32 or 64-bit kernels...Both kernels available,
choosing
 32-bit kernelELF32 executable
Entry 00100290 first 00100000 n 5
Segment 0 load 00100000 size 2555292 mediaptr 0x1000
Segment 1 load 00370000 size 385040 mediaptr 0x271000
Segment 2 load 003d0000 size 270336 mediaptr 0x2d0000
Segment 3 load 00418000 size 32768 mediaptr 0x312000
Segment 4 load 00477d60 size 130928 mediaptr 0x31ad60
Loading ramdisk 1107370 bytes @ 3fee0000...
Branching to kernel entry point 0x00100290.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.4.26-pa1-livecd-32 (root@b180l) (gcc version 3.3.2) #1 Mon
May 1
7 22:56:46 UTC 2004
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005cf0 00000481 00000000 00000002 77654da0 100000f0 00000008
000000b2 00
0000b2
vers  00000301
CPUID vers 17 rev 11 (0x0000022b)
capabilities 0x3
model 9000/785/C3600
Total Memory: 1024 Mb
initrd: 4fee0000-4ffee5aa
initrd: reserving 3fee0000-3ffee5aa (mem_max 40000000)
pagetable_init
On node 0 totalpages: 262144
zone(0): 262144 pages.
zone(1): 0 pages.
zone(2): 0 pages.
LCD display at f05d0008,f05d0000 registered
Kernel command line:  root=/dev/ram0 init=/linuxrc cdroot looptype=normal
loop=/
livecd.loop console=ttyS0 palo_kernel=0/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 1101.00 BogoMIPS
Memory: 1031372k available
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode cache hash table entries: 65536 (order: 7, 524288 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 65536 (order: 6, 262144 bytes)
Page-cache hash table entries: 262144 (order: 8, 1048576 bytes)
Searching for devices...

---------------------------------------------------------------------------

At this point the machine seems to hang. As mentioned above this is my first
PARISC box. I'm not that familiar with the hppa architecture. Maybe it's
just a silly thing I haven't noticed. So if anyone can give me a hint I
would be glad...

Matej Martini

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> Searching for devices...
> 
> ---------------------------------------------------------------------------
> 
> At this point the machine seems to hang. As mentioned above this is my first
> PARISC box. I'm not that familiar with the hppa architecture. Maybe it's
> just a silly thing I haven't noticed. So if anyone can give me a hint I
> would be glad...

This is actually a kernel problem; I also see this.... I talked to Grant
about this a bit, but we haven't reached a good conclusion. If you can
find a 2.6 based install, it should work.....

this is the bit that needs fixing, in arch/parisc/kernel/inventory.c...
with this it should boot.

-       pdc_suspend_usb();
+/*     pdc_suspend_usb(); */

randolph
-- 
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> > Searching for devices...
> > 
> >
>
---------------------------------------------------------------------------
> > 
> > At this point the machine seems to hang. As mentioned above this is my
> first
> > PARISC box. I'm not that familiar with the hppa architecture. Maybe it's
> > just a silly thing I haven't noticed. So if anyone can give me a hint I
> > would be glad...
> 
> This is actually a kernel problem; I also see this.... I talked to Grant
> about this a bit, but we haven't reached a good conclusion. If you can
> find a 2.6 based install, it should work.....
> 
> this is the bit that needs fixing, in arch/parisc/kernel/inventory.c...
> with this it should boot.
> 
> -       pdc_suspend_usb();
> +/*     pdc_suspend_usb(); */
> 
> randolph
> -- 
> Randolph Chung
> Debian GNU/Linux Developer, hppa/ia64 ports
> http://www.tausq.org/
> 

Thanks for pointing me to the right direction :)

Matej Martini

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On Sat, Jun 12, 2004 at 10:12:20PM +0200, Matej Martini wrote:
> > This is actually a kernel problem; I also see this.... I talked to Grant
> > about this a bit, but we haven't reached a good conclusion. If you can
> > find a 2.6 based install, it should work.....

We need to shut down any devices the PDC has left in a state
where it might do DMA *Before* reprogramming the IOMMU.
Knowing which devices to shutdown this early and how to access
then is non-trivial.

> > 
> > this is the bit that needs fixing, in arch/parisc/kernel/inventory.c...
> > with this it should boot.
> > 
> > -       pdc_suspend_usb();
> > +/*     pdc_suspend_usb(); */

Yeah - this is a "trivial" fix for a difficult problem.
An alternative solution would be to disconnect all USB devices.
I'm hoping firmware doesn't enable DMA for USB ports if it doesn't find
anything.

grant
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On Sun, Jun 13, 2004 at 12:41:47PM -0400, Kyle McMartin wrote:
> Hmm. It's a problem because the firmware of some machines will only
> boot 64-bit kernels, some will only boot 32-bit, and some will boot
> either.

correct.

> The best thing to do, would be to always install 32bit by default.

No. The best would be to look at "uname -m" output.
Install 32-bit if it's "parisc" and install 64-bit if it's "parisc64".

>  As
> when a person tries to boot on a machine that only has 64-bit firmware,
> they will have to manually edit the PALO commandline to use vmlinux64, which
> will result in them having a parisc64 uname -m entry. So I'd think 
> install based on the uname -m entry would work.

Correct, it will. As long as palo can select which kernel to boot
from the install media (CD, HD, network), a working kernel will
get booted/installed by default.

> I'm going to copy the parisc-linux list with this, for comments.

thanks,
grant
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> Thanks for the pointers.  From the document, I was able to add prefetch support
> for PA-RISC 2.0 to ATLAS's header file. 

Cool! Be aware that, if atlas relies on being able to prefetch invalid
addresses and have that not fault, then it will only work on some PA 
processors (mostly pa20) and not all of them.

randolph
-- 
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Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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> An alternative solution would be to disconnect all USB devices.
> I'm hoping firmware doesn't enable DMA for USB ports if it doesn't find
> anything.

nope, doesn't work -- i have nothing connected to the USB ports on my
c3750.

randolph
-- 
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Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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> > Thanks for the pointers.  From the document, I was able to add prefetch support
> > for PA-RISC 2.0 to ATLAS's header file. 
> 
> Cool! Be aware that, if atlas relies on being able to prefetch invalid
> addresses and have that not fault, then it will only work on some PA 
> processors (mostly pa20) and not all of them.

Are you sure this doesn't apply to all pa20 processors?  See page 6-11
in PA-RISC 2.0 Architecture book.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > Cool! Be aware that, if atlas relies on being able to prefetch invalid
> > addresses and have that not fault, then it will only work on some PA 
> > processors (mostly pa20) and not all of them.
> 
> Are you sure this doesn't apply to all pa20 processors?  See page 6-11
> in PA-RISC 2.0 Architecture book.

It does work on all pa20 processors, afaik. Let me rephrase:

"Be aware that, if atlas relies on being able to prefetch invalid
addresses and have that not fault, then it will only work on some PA 
processors but not all of them. All pa20 processors should work.
pa11 processors will not."

We ran into this while trying to get PA7300LC to do prefetching in the
kernel.

randolph
-- 
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Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Xref: news.gmane.org gmane.linux.ports.parisc:21733

On Fri, Jun 11, 2004 at 05:38:24PM -0700, Jim Hull wrote:
> PDC_CACHE returns parameters for both the architected FDCE loop and the
> architected FICE loop.  They are D_base, D_count, D_loop, and D_stride for the
> FDCE loop and I_base, I_count, I_loop, and I_stride for the FICE loop.
> 
> The PDC_CACHE description also contains a Programming Note which explain how
> you might use the values in the various bit-fields from two other returned
> parameters (D_conf and I_conf) to flush a range of addresses using FDC or FIC.
> Technically, these aren't "architected loops", they're just a suggestion.

ah ok. In general, I prefer to do whatever I know HPUX is doing.
Because architected or not, there is a precendence that works (even
if for the wrong reasons).

> I checked the Mako ERS; it clearly describes what parameters PDC must
> return in order for the flush loops to work.  The values you show match
> those in the ERS.

Ok - thanks for confirming.

> > 3) I'm not sure if loop=1 indicates 2-way associative or 
> > direct mapped.
> >    I expect direct mapped.  I need to re-read the docs.
> >    Maybe someone knows? jsm?
> 
> You should not think about the FDCE/FICE parameters as corresponding to any
> particular property of the given cache.  They are simply abstract values to
> plug into the architected flush loops in order to make them flush the whole
> cache.

Understood. I'm not so worried about the "flush whole cache" as the
"flush range" functions where I thought we do need to know the
cache properties.

> For example, since the Mako caches are all 4-way associative, you might
> think that the "loop" parameter(s) would be 4.  However, because of the
> design of the Mako FDCE and FICE instructions, executing with "loop" equal
> 4, and with "count" equal to 1/4 of its current value, would (sometimes)
> fail to flush the whole cache.

Ouch. Does that mean FDCE and FICE modify the L2 cache also?
Do FDC/FIC also affect the L2?

Someone was asserting it was not necessary to flush the L2 since the L2 is
a PIPT cache and would always be coherent. I don't really know but
that makes sense to me.

...
> > I noticed HPUX was calculating the stride differently than
> > parisc-linux. I didn't realize until later the difference
> > could be due to older/newer firmware versions and/or differences
> > in the "architected loop" initialization.
> 
> For FDC/FIC loops, the architecture was changed to handle machines with line
> sizes larger than 64 bytes (like Mako, where it's 128).  The correct equation,
> which will work on both new and old machines, is:
> 
>   stride = (1 << (block - 1)) * ((line * 16) << shift)

The above results in stride=128 on C8000 as well (output appended below).
I now have three variants to calculate stride:

#define CAFL_STRIDE(cnf) ((1 << (cnf.cc_block + 3)) * cnf.cc_line)
#define CAFL_STRIDE(cnf) (cnf.cc_block * (cnf.cc_line << (4 + cnf.cc_shift)))
#define CAFL_STRIDE(cnf) ((1 << (cnf.cc_block-1)) * (cnf.cc_line << (4 + cnf.cc_shift)))

1) original parisc-linux
2) "borrowed" from HPUX (i80_latest, maybe HPUX wants to use
   Jim Hull's suggestion as well?)
3) "New and Improved" :^)

> If the "4 + cnf.cc_shift" is trying to compute a stride, then this may be the
> source of the problem.  Try changing it as above.

I've tested stride of 32/64/128 and they all behave the same.
I'm skeptical stride is the cause of the problem.

So far, just once have I had problems booting with stride=128 and that
was with a suspect kernel (not built/linked clean).
In general, things work from the console (eg ssh foo, apt-get update,
apt-get upgrade, RC scripts, etc).

But sshd segfaults or get's illegal insn faults when trying to ssh
into the c8000. Seems like if it were an IO coherency problem, I'd see
more problems during boot time too...maybe there is something
related to non-zero spaceid.

Jim, do you know if Space Id hashing is disabled the same way
on PA8800 as for PA8500/8600/8700 CPUs?

Or maybe it's easier to verify in the Make ERSthe following is correct:
(See arch/parisc/kernel/pacache.S)
srdis_pa20:

	/* Disable Space Register Hashing for PCXU,PCXU+,PCXW,PCXW+ */

	.word           0x144008bc  /* mfdiag %dr2,%r28 */
	depdi           0,54,1,%r28 /* clear DIAG_SPHASH_ENAB (bit 54) */
	.word           0x145c1840  /* mtdiag %r28,%dr2 */


thanks,
grant

...
Command line for kernel: 'root=/dev/nfs nfsroot=192.168.1.61:/home/tftpboot/pa8'
Selected kernel: HOME=/ from partition 0                                        
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 64-bit ke
Entry 00100000 first 00100000 n 3                                               
Segment 0 load 00100000 size 5013888 mediaptr 0x1000                            
Segment 1 load 005cc000 size 362512 mediaptr 0x4ca000                           
Segment 2 load 00628000 size 393349 mediaptr 0x523000                           
Branching to kernel entry point 0x00100000.  If this is the last                
message you see, you may need to switch your console.  This is                  
a common symptom -- search the FAQ and mailing list at parisc-linux.org         
                                                                                
Linux version 2.6.7-rc2-pa4 (grundler@gsyprf11.external.hp.com) (gcc version 3.4
FP[0] enabled: Rev 1 Model 20                                                   
The 64-bit Kernel has started...                                                
Determining PDC firmware type: 64 bit PAT.                                      
model 000088a0 00000491 00000000 00000002 d4936494c9f85489 100000f0 00000008 002
vers  00000301                                                                  
CPUID vers 20 rev 4 (0x00000284)                                                
capabilities 0x35                                                               
model 9000/785/C8000                                                            
ic_size 2000000 dc_size 2000000 it_size f0                                      
DC  base 0x0 stride 0x80 count 0x40000 loop 0x1                                 
dc_conf = 0x1882000  alias 0 blk 1 line 4 shift 1                               
        wt 0 sh 0 cst 1 assoc 0                                                 
IC  base 0x0 stride 0x80 count 0x40000 loop 0x1                                 
ic_conf = 0x1882000  alias 0 blk 1 line 4 shift 1                               
        wt 0 sh 0 cst 1 assoc 0                                                 
D-TLB conf: sh 3 page 1 cst 1 aid 0 pad1 0                                      
I-TLB conf: sh 3 page 1 cst 1 aid 3 pad1 0                                      
dcache_stride 128   icache_stride 128                                           
parisc_cache_init: Only equivalent aliasing supported!                          
Total Memory: 1024 Mb                                                           
On node 0 totalpages: 262144                                                    
  DMA zone: 262144 pages, LIFO batch:16                                         
  Normal zone: 0 pages, LIFO batch:1                                            
  HighMem zone: 0 pages, LIFO batch:1                                           
Built 1 zonelists                                                               
Kernel command line: root=/dev/nfs nfsroot=192.168.1.61:/home/tftpboot/pa8800 i/
PID hash table entries: 16 (order 4: 256 bytes)  
...
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On Mon, Jun 14, 2004 at 04:53:46PM -0400, R Clint Whaley wrote:
> My understanding from the docs is that pa11 doesn't define any prefetch
> instructions, which means these formulations are loads to an invalid
> register, which, since they are loads and not prefetches, could have
> side effects (eg., seg fault).  Therefore, you need to use them only
> on pa20, even if they compile on pa11.  I take it this is what you are saying?

That's correct.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Xref: news.gmane.org gmane.linux.ports.parisc:21735

Randolph,

>It does work on all pa20 processors, afaik. Let me rephrase:
>
>"Be aware that, if atlas relies on being able to prefetch invalid
>addresses and have that not fault, then it will only work on some PA 
>processors but not all of them. All pa20 processors should work.
>pa11 processors will not."
>
>We ran into this while trying to get PA7300LC to do prefetching in the
>kernel.

My understanding from the docs is that pa11 doesn't define any prefetch
instructions, which means these formulations are loads to an invalid
register, which, since they are loads and not prefetches, could have
side effects (eg., seg fault).  Therefore, you need to use them only
on pa20, even if they compile on pa11.  I take it this is what you are saying?

Thanks,
Clint
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Grant:

> Ouch. Does that mean FDCE and FICE modify the L2 cache also?
> Do FDC/FIC also affect the L2?

The PA processor architecture requires that all of these flush =
instructions
flush every level of the processor cache hierarchy all the way out to =
memory.
In other words, yes.=20

> Someone was asserting it was not necessary to flush the L2=20
> since the L2 is
> a PIPT cache and would always be coherent. I don't really know but
> that makes sense to me.

You could imagine an architecture having several variants of the cache =
flushing
instructions that software could call depending on why it needed to =
flush; for
example, to achieve I-cache/D-cache coherence, to resolve virtual =
aliasing, to
communicate with non-coherent I/O devices, or to flush out to a =
battery-backed
RAM in case of powerfail.

I think pa-linux wants the second of these.  Unfortunately, PA only has =
a single
variant, and it was designed for the third and fourth cases.

> ...
> > > I noticed HPUX was calculating the stride differently than
> > > parisc-linux. I didn't realize until later the difference
> > > could be due to older/newer firmware versions and/or differences
> > > in the "architected loop" initialization.
> >=20
> > For FDC/FIC loops, the architecture was changed to handle=20
> machines with line
> > sizes larger than 64 bytes (like Mako, where it's 128). =20
> The correct equation,
> > which will work on both new and old machines, is:
> >=20
> >   stride =3D (1 << (block - 1)) * ((line * 16) << shift)
>=20
> The above results in stride=3D128 on C8000 as well (output=20
> appended below).
> I now have three variants to calculate stride:
>=20
> #define CAFL_STRIDE(cnf) ((1 << (cnf.cc_block + 3)) * cnf.cc_line)
> #define CAFL_STRIDE(cnf) (cnf.cc_block * (cnf.cc_line << (4 +=20
> cnf.cc_shift)))
> #define CAFL_STRIDE(cnf) ((1 << (cnf.cc_block-1)) *=20
> (cnf.cc_line << (4 + cnf.cc_shift)))
>=20
> 1) original parisc-linux

This one doesn't include the new "shift" field, so it's clearly =
out-of-date.

> 2) "borrowed" from HPUX (i80_latest, maybe HPUX wants to use
>    Jim Hull's suggestion as well?)

This one is almost correct.  If "block" is 1 or 2, it gets the right =
answer -
it's only wrong for "block" values of 3 or more.  I suspect that HPUX =
appears to
work only because no PDC has ever returned anything other than 1 for =
"block".

> 3) "New and Improved" :^)

And correct!  If you'd like a more optimized version, this is =
equivalent:

#define CAFL_STRIDE(cnf) (cnf.cc_line << (3 + cnf.cc_block + =
cnf.cc_shift))

> Jim, do you know if Space Id hashing is disabled the same way
> on PA8800 as for PA8500/8600/8700 CPUs?
>=20
> Or maybe it's easier to verify in the Make ERSthe following=20
> is correct:
> (See arch/parisc/kernel/pacache.S)
> srdis_pa20:
>=20
> 	/* Disable Space Register Hashing for PCXU,PCXU+,PCXW,PCXW+ */
>=20
> 	.word           0x144008bc  /* mfdiag %dr2,%r28 */
> 	depdi           0,54,1,%r28 /* clear DIAG_SPHASH_ENAB=20
> (bit 54) */
> 	.word           0x145c1840  /* mtdiag %r28,%dr2 */

Yes, the Mako ERS says that DIAG_SPHASH_ENAB is still bit 54 in diag =
register 2.

 -- Jim

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On Mon, Jun 14, 2004 at 03:45:32PM -0700, Jim Hull wrote:
...
> You could imagine an architecture having several variants of the cache flushing
> instructions that software could call depending on why it needed to flush; for
> example, to achieve I-cache/D-cache coherence, to resolve virtual aliasing, to
> communicate with non-coherent I/O devices, or to flush out to a battery-backed
> RAM in case of powerfail.
> 
> I think pa-linux wants the second of these.

Yes - I left out that part in my paraphrasing of "someone" 's comments.

>   Unfortunately, PA only has a single
> variant, and it was designed for the third and fourth cases.

ok.

> > 2) "borrowed" from HPUX (i80_latest, maybe HPUX wants to use
> >    Jim Hull's suggestion as well?)
> 
> This one is almost correct.  If "block" is 1 or 2, it gets the right
> answer - it's only wrong for "block" values of 3 or more.
> I suspect that HPUX appears to work only because no PDC has ever
> returned anything other than 1 for "block".

Ok. And PDC probably won't if they don't have to even if it would
be more efficient because of "pre-enablement" of existing OS.
I have no idea if PDC ever will need to.

> > 3) "New and Improved" :^)
> 
> And correct!  If you'd like a more optimized version, this is equivalent:
> 
> #define CAFL_STRIDE(cnf) (cnf.cc_line << (3 + cnf.cc_block + cnf.cc_shift))

yes - that's nicer. I'll keep the original "simple math" version
to document the origin.

> Yes, the Mako ERS says that DIAG_SPHASH_ENAB is still bit 54 in
> diag register 2.

Ok - thank you.

I'm out of ideas for the moment what might be wrong.
Maybe I'll troll the HPUX source tree for any PA8800 
or ZX1 specific code changes...

*sigh*

thanks,
grant
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Xref: news.gmane.org gmane.linux.ports.parisc:21738

L1000-36 works just fine

read the HOWTO here:
http://www.pateam.org/doc.html

and use a netinst ISO:
http://www.pateam.org/download.html

HTH,


Thibaut VARENE
PA/Linux ESIEE Team
http://www.pateam.org/


-------------------
> Hi,=20
>=20
> First of all I am newbie for PA-RISC Linux. Now I am trying to
install=20
> Debian 3.0.23 to our old HP server(model L1000-36) with no success.
This=20
> is what I have accomplished so far:=20
>=20
> - set 700/96 console so that i can actual start installing :)
(couldn't=20
> get serial console working with RS-232 and win2k hyperterminal,
though)=20
> - CD boots OK=20
>=20
> Problems start when I try to "Install the Base System".=20
>=20
> Following warning occurs:=20
>=20
> Failure trying to run: chroot /target dpkg --force-depends --install

> /var/cache/apt/archives/base-files_3.0.2_hppa.dep=20
> /var/cache/apt/archives/base_passwd_3.4.1_hppa.dep=20
>=20
> Followed by error:=20
>=20
> debootstrap exited with error( return value 1 )=20
>=20
> I have trackdown The Net and found that it might be SCSI
driver/controller=20
> problem that you have to give some SCSI related parameters to PALO.
My=20
> system has Symbios Logic 53c875 and 53c896 Ultra Wide SCSI.=20
>=20
> Anyone knows the solution?=20
>=20
> - Harri=20
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2.6.7-pa0 fails to build on newer 64-bit toolchain:

  CC      drivers/block/loop.o
{standard input}: Assembler messages:
{standard input}:3652: Error: Field not properly aligned [8] (-183).
{standard input}:3652: Error: Invalid operands 
make[2]: *** [drivers/block/loop.o] Error 1
make[1]: *** [drivers/block] Error 2
make: *** [drivers] Error 2

Just a heads up.

c.

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From: Kyle McMartin <kyle@debian.org>
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Subject: Re: [parisc-linux] Heads up,
	2.6.7-pa0 FTBS with 64-bit toolchain + loop
Date: Thu, 17 Jun 2004 20:22:47 -0400
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On Wed, Jun 16, 2004 at 03:44:11PM -0400, Carlos O'Donell wrote:
> Just a heads up.
> 
I know you already know this, but for posterity's sake, I'm following up
with the GCC bug that Randolph filed for this.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14782

Regards,
-- 
Kyle McMartin
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Xref: news.gmane.org gmane.linux.ports.parisc:21741

Guys,

Despite vowing not to spend any time on this old arch, I've spent the last
two days scoping it out in detail.  One thing I noticed is that gcc is able
to run at the same speed as cc for double precision codes, but produces
code that runs roughly half as fast for single precision.

I started looking at the genned assembler, and I think I've figured out why.
parisc allows you to use the 'left' and 'right' parts of a double precision
register as seperate single precision registers.  Therefore, you have
something like 56 single prec regs on this arch!  The bad news, though,
is that the pair must be scheduled as if they were still one reg.  I.e.,
if %fr31L is the target of an operation, and the next operation uses
%fr31R as a target, you have a pipeline stall just as you would if they
were both %fr31L.

HP's cc compiler is aware of this, and does not schedule pieces of a pair
within pipeline distance of each other, but gcc is not, and so it does it
all the time, causing random pipeline stalls throughout all single precision
code.

So, I'm sending this to this list for a couple of reasons.  Anybody here do
numerical work?  If so, do you see single precision underperfoming double?

I also thought someone on this list might have a contact with the gcc guys,
and might be able to get them to give a hoot about this old arch.
There are a couple of fixes that could be applied in gcc fairly easily,
I think.  The hard one is to do like cc, and use all 64 regs, but enforce
the pipeline stall trick.  An easier solution would be to have a flag
that says "use only the left/right of pair".  This would give you only 28
regs instead of 56, but you wouldn't have random stalls, and so performance
would be much improved.

BTW, I'm not a member of this pa-risc mailing list, so CC me if you want
me to see any reply.

Thoughts?
Clint
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On Fri, Jun 18, 2004 at 11:58:53PM +0200, Andy Walker wrote:
> Errm, no thank you - unless there are very good reasons why I need a
> new GCC.

If you want 7300LC scheduling support?
There's a whole raft of bug fixes betweem gcc 3.0.4 and gcc 3.3.3.
But I can understand the reluctance to upgrade.

> The automated builds on http://cvs.parisc-linux.org/download/linux-2.6

These are developement kernels. Treat them like "unstable".

> are broken for the B180 config because of this change which sends out
> the message that current versions are broken on 7300LC. Bad message!
> And I don't think we should be forcing GCC upgrades on people like this.

This is not forcing anyone to upgrade unless they want to use
*exactly* that config file. It's not reasonable to build "unstable"
kernel debs from "stable" tool chain.

thanks,
grant
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On Fri, Jun 18, 2004 at 05:53:10PM -0400, Kyle McMartin wrote:
> willy posted a patch that checks the gcc version and uses 7100 or 7300
> based on it.

Actually, I didn't.  Can anyone test this for me?

Index: arch/parisc/Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/Makefile,v
retrieving revision 1.12
diff -u -p -r1.12 Makefile
--- arch/parisc/Makefile        19 Apr 2004 22:32:49 -0000      1.12
+++ arch/parisc/Makefile        19 Jun 2004 01:28:37 -0000
@@ -48,7 +48,7 @@ cflags-y      += -ffunction-sections
 cflags-$(CONFIG_PA7100)                += -march=1.1 -mschedule=7100
 cflags-$(CONFIG_PA7200)                += -march=1.1 -mschedule=7200
 cflags-$(CONFIG_PA7100LC)      += -march=1.1 -mschedule=7100LC
-cflags-$(CONFIG_PA7300LC)      += -march=1.1 -mschedule=7300
+cflags-$(CONFIG_PA7300LC)      += $(call check_gcc,-march=1.1 -mschedule=7300,-march=1.1 -mschedule=7100LC)
 cflags-$(CONFIG_PA8X00)                += -march=2.0 -mschedule=8000
 
 head-y                 := arch/parisc/kernel/head.o 


-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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> On Fri, Jun 18, 2004 at 05:25:05PM -0400, Kyle McMartin wrote:
> > gcc-3.4-hppa (or gcc-3.3-hppa)
> 
> Should I be testing 64-bit kernels built with this toolchain
> or stick with my trusty gcc 3.0.4-hppa64 handmade debs?

>>From my perspective, the 3.4 branch is the best yet.  By this, I
mean it has the fewest bugs in the PA backend.  However, there are
lots of other changes that may bite ...

Randolph's PR (the one that started this thread) isn't fixed and
hasn't been seriously researched (too many other issues).  However,
it's obviously a serious issue for the kernel.  So, maybe you should
use 3.0.4 for kernel builds until it's resolved.  For other uses, I
suggest 3.3.4 (released?) or the soon to be released 3.4.1.  3.5 is
for Joel to test ;-)

If anyone out there wants to learn more than they really wanted
to know about GCC and binutils internals, let me know as there
are a number of projects that need working on.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> I've been building hppa64 kernels with the gcc 3.0.4 debs on the FTP
> server, until this issue is resolved. :/

I'm 99% certain that this issue is not a target related problem.  The way to
move this forward is to provide more analysis and keep the PR visible.  This
could be more details on the nature of the failure, etc.

It's important for others to come forward on problem reports as this
shows an interest from the community at large in resolving problems on
the PA.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] A couple of minor patches for 2.6.7-pa1
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On Sat, Jun 19, 2004 at 02:28:55AM +0100, Matthew Wilcox wrote:
> -cflags-$(CONFIG_PA7300LC)      += -march=1.1 -mschedule=7300
> +cflags-$(CONFIG_PA7300LC)      += $(call check_gcc,-march=1.1 -mschedule=7300,-march=1.1 -mschedule=7100LC)
> 
This works, but only if -Werror is passed to gcc as well, otherwise, it
only generates a warning and goes undetected. Without -Werror, the
kernel compile should succeed, as where it died before would be built
with 7100LC this way, though I'm unaware of the effect of mixing gcc
optimizations like this...

Regards,
-- 
Kyle McMartin
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> I started looking at the genned assembler, and I think I've figured out why.
> parisc allows you to use the 'left' and 'right' parts of a double precision
> register as seperate single precision registers.  Therefore, you have
> something like 56 single prec regs on this arch!  The bad news, though,
> is that the pair must be scheduled as if they were still one reg.  I.e.,
> if %fr31L is the target of an operation, and the next operation uses
> %fr31R as a target, you have a pipeline stall just as you would if they
> were both %fr31L.

This is a known issue and mentioned in pa64-regs.h.  I believe the
simple stuff has been done already (fp register allocation order).
Changing the the allocation order or hiding the left/right addressibility
would probably break gdb.  It might be possible to describe the
interdependency in the machine definition.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> On Fri, Jun 18, 2004 at 11:42:13PM +0200, Andy Walker wrote:
> > -cflags-$(CONFIG_PA7300LC)	+= -march=1.1 -mschedule=7300
> > +cflags-$(CONFIG_PA7300LC)	+= -march=1.1 -mschedule=7100LC
> 
> Yes it does. Update your GCC.

It was introduced in 3.3.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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pa,

Someone with the notion of said functions semantics might be willing to
produce the correct fix please? :)

64-bit kernel build (turned off loop.ko compilation)

carlos@firin:/mnt/flaire/src/linux-2.6$ make
make[1]: `arch/parisc/kernel/asm-offsets.s' is up to date.
  CHK     include/asm-parisc/offsets.h
  CHK     include/linux/compile.h
  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
kernel/built-in.o(.text.put_files_struct+0x118): In function
`put_files_struct':
: undefined reference to `__xchg_called_with_bad_pointer'
make: *** [.tmp_vmlinux1] Error 1
carlos@firin:/mnt/flaire/src/linux-2.6$ 

Cheers,
Carlos.

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On Sat, Jun 19, 2004 at 03:20:39PM -0400, Carlos O'Donell wrote:
> Someone with the notion of said functions semantics might be willing to
> produce the correct fix please? :)

"gcc is buggy" ;-)

> 64-bit kernel build (turned off loop.ko compilation)
> 
> carlos@firin:/mnt/flaire/src/linux-2.6$ make
> make[1]: `arch/parisc/kernel/asm-offsets.s' is up to date.
>   CHK     include/asm-parisc/offsets.h
>   CHK     include/linux/compile.h
>   GEN     .version
>   CHK     include/linux/compile.h
>   UPD     include/linux/compile.h
>   CC      init/version.o
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
> kernel/built-in.o(.text.put_files_struct+0x118): In function
> `put_files_struct':
> : undefined reference to `__xchg_called_with_bad_pointer'
> make: *** [.tmp_vmlinux1] Error 1
> carlos@firin:/mnt/flaire/src/linux-2.6$ 

It would be useful to confirm that the xchg() that's broken is the one in
close_files().  If it is, here's what's happening:

struct files_struct * files;
struct file * file = xchg(&files->fd[i], NULL);

The xchg() expands through:

#define xchg(ptr,x) \
	((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))

The third argument to __xchg() is therefore:

	sizeof(*(&files->fd[i]))
ie
	sizeof(file->fd[i])

struct files_struct {
        struct file ** fd;      /* current fd array */
}

So sizeof(file->fd[i]) should be sizeof(struct file *).  If that's not 8,
something is indeed broken and this trick has saved you from booting a
broken kernel ;-)

Care to produce a test-case?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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> regarding the pb of pointer comparison with gcc-3.3 and 3.4 64bits (sorry I didn't find back the gcc bug report reference) which 
> iirc jda re-qualified it in a binutils pb. (That why of my interest in binutils 2.15 :) to see if I can help.)

I don't know of any hppa64 bugs involving pointer comparison.  The cause
of the binutils bug is known:

<http://sources.redhat.com/ml/binutils/2004-06/msg00211.html>.

Until this is fixed, don't use cvs binutils from the trunk after
2004-05-11 17:08:32.

> Kyle McMartin wrote:
> > On Fri, Jun 18, 2004 at 07:17:14PM -0600, Grant Grundler wrote:
> > 
> >>Should I be testing 64-bit kernels built with this toolchain
> >>or stick with my trusty gcc 3.0.4-hppa64 handmade debs?
> >>
> > 
> > There's a bug in hppa64 gcc sometime after 3.0.4 (it shows up in the
> > gcc-3.3-hppa64 and gcc-3.4-hppa64 debs) that causes builds to fail in
> > (at least) loop.c.
> > 
> > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14782 is the bug Randolph
> > filed.

I believe that I understand the cause of this bug and have started
testing a fix.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux]      Heads up, 2.6.7-pa0 FTBS with 64-bit toolchain
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> > Kyle McMartin wrote:
> > > On Fri, Jun 18, 2004 at 07:17:14PM -0600, Grant Grundler wrote:
> > > 
> > >>Should I be testing 64-bit kernels built with this toolchain
> > >>or stick with my trusty gcc 3.0.4-hppa64 handmade debs?
> > >>
> > > 
> > > There's a bug in hppa64 gcc sometime after 3.0.4 (it shows up in the
> > > gcc-3.3-hppa64 and gcc-3.4-hppa64 debs) that causes builds to fail in
> > > (at least) loop.c.
> > > 
> > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14782 is the bug Randolph
> > > filed.
> 
> I believe that I understand the cause of this bug and have started
> testing a fix.

Enclosed is the patch that I am testing.  It seems to generated reasonable
code for the testcase that Carlos submitted today.  As far as I can tell,
the bug has been present in the FSF sources since the first support for
the 64-bit port (3.0 branch).  Thus, I expect the bug is present in debian
3.0.4, just not triggered.  The bug is triggered by the loop optimizer.

I would be interested in hearing if this solves the kernel build problem.
The patch is for 3.5.  It might need a bit of hacking to apply it to
earlier branches.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

2004-06-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa.h (GO_IF_LEGITIMATE_ADDRESS): Require constant offsets to be
	correctly aligned for DImode loads and stores.

Index: config/pa/pa.h
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/pa/pa.h,v
retrieving revision 1.218
diff -u -3 -p -r1.218 pa.h
--- config/pa/pa.h	13 May 2004 06:40:03 -0000	1.218
+++ config/pa/pa.h	20 Jun 2004 00:32:04 -0000
@@ -1467,13 +1467,18 @@ extern int may_call_alloca;
       if (base								\
 	  && GET_CODE (index) == CONST_INT				\
 	  && ((INT_14_BITS (index)					\
-	       && (TARGET_SOFT_FLOAT					\
-		   || (TARGET_PA_20					\
-		       && ((MODE == SFmode				\
-			    && (INTVAL (index) % 4) == 0)		\
-			   || (MODE == DFmode				\
+	       && ((TARGET_64BIT && (MODE) == DImode			\
+		    && (INTVAL (index) % 8) == 0)			\
+		   || ((MODE) == SFmode					\
+		       && (TARGET_SOFT_FLOAT				\
+			   || (TARGET_PA_20				\
+			       && (INTVAL (index) % 4) == 0)))		\
+		   || ((MODE) == DFmode					\
+		       && (TARGET_SOFT_FLOAT				\
+			   || (TARGET_PA_20				\
 			       && (INTVAL (index) % 8) == 0)))		\
-		   || ((MODE) != SFmode && (MODE) != DFmode)))		\
+		   || ((!TARGET_64BIT || (MODE) != DImode)		\
+		       && (MODE) != SFmode && (MODE) != DFmode)))	\
 	       || INT_5_BITS (index)))					\
 	goto ADDR;							\
       if (!TARGET_DISABLE_INDEXING					\
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I've noticed that "who" is essentially useless in reporting users who
are actually logged in.  There seems to be a rather poor cleanup when
connections die and a user doesn't logout.

dave@gsyprf11:~$ w
 18:58:55 up 17 days,  2:38, 99 users,  load average: 1.61, 1.42, 1.31
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
dave     pts/2595 hse-ottawa-ppp23 08:46    4:25m  2:17  10.75s less build2.log
dave     pts/2595 hse-ottawa-ppp23 10:34    0.00s  0.34s  0.03s w
dave@gsyprf11:~$ who
carlos   pts/24748    Jun  3 13:27 (ip47-168.ott.istop.com)
dave     pts/24749    Jun  3 21:44 (hse-ottawa-ppp235823.sympatico.ca)
grundler pts/24750    Jun  3 21:53 (c-24-6-53-189.client.comcast.net)
carlos   pts/24751    Jun  4 09:12 (ip47-168.ott.istop.com)
carlos   pts/24755    Jun  4 11:11 (ip47-168.ott.istop.com)
tausq    pts/24756    Jun  4 11:20 (gandalf.tausq.org)
carlos   pts/24757    Jun  4 14:40 (ip47-168.ott.istop.com)
grundler pts/24758    Jun  4 16:37 (c-24-6-53-189.client.comcast.net)
grundler pts/24759    Jun  4 19:02 (c-24-6-53-189.client.comcast.net)
dave     pts/24760    Jun  4 21:13 (hse-ottawa-ppp234817.sympatico.ca)
...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hello all,

And there is also this pb mentionned by James:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2004-February/022335.html>

regarding the pb of pointer comparison with gcc-3.3 and 3.4 64bits (sorry I didn't find back the gcc bug report reference) which 
iirc jda re-qualified it in a binutils pb. (That why of my interest in binutils 2.15 :) to see if I can help.)

That said, my very interest in 3.4 (and 3.5 now because is became the debian gcc-snapshot ;) ) is to continue the glibc-2.3.3 test 
and see if additional integer lib (hp one iirc) can help for the few test which still failled?

I was focused last month on my c110 ncr53c8xx bug; now I trust it is fixed, so jda if you think that I can be of better help else 
where I can always try to have a look ;). Please advise.

Joel




Kyle McMartin wrote:
> On Fri, Jun 18, 2004 at 07:17:14PM -0600, Grant Grundler wrote:
> 
>>Should I be testing 64-bit kernels built with this toolchain
>>or stick with my trusty gcc 3.0.4-hppa64 handmade debs?
>>
> 
> There's a bug in hppa64 gcc sometime after 3.0.4 (it shows up in the
> gcc-3.3-hppa64 and gcc-3.4-hppa64 debs) that causes builds to fail in
> (at least) loop.c.
> 
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14782 is the bug Randolph
> filed.
> 
> I've been building hppa64 kernels with the gcc 3.0.4 debs on the FTP
> server, until this issue is resolved. :/
> 
> Regards,

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On Sat, Jun 19, 2004 at 10:04:06PM -0400, John David Anglin wrote:
> I've noticed that "who" is essentially useless in reporting users who
> are actually logged in.  There seems to be a rather poor cleanup when
> connections die and a user doesn't logout.

Yeah.  I started seeing that in the end of May, IIRC.  X86 works fine.
I had some other fires going and didn't get a chance to look at it.
We could try a 2.4 kernel and see if the same problem exists.

grant
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Joel Soete writes:
> That said, my very interest in 3.4 (and 3.5 now because is became
> the debian gcc-snapshot ;) )

gcc-3.4 is available as a package as well. Add the following line to
to your sources.list.

deb http://ftp.debian.org/debian ../project/experimental main contrib non-free

then install it using apt-get -t experimental gcc-3.4
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John David Anglin writes:
> > > Kyle McMartin wrote:
> > > > On Fri, Jun 18, 2004 at 07:17:14PM -0600, Grant Grundler wrote:
> > > > 
> > > >>Should I be testing 64-bit kernels built with this toolchain
> > > >>or stick with my trusty gcc 3.0.4-hppa64 handmade debs?
> > > >>
> > > > 
> > > > There's a bug in hppa64 gcc sometime after 3.0.4 (it shows up in the
> > > > gcc-3.3-hppa64 and gcc-3.4-hppa64 debs) that causes builds to fail in
> > > > (at least) loop.c.
> > > > 
> > > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14782 is the bug Randolph
> > > > filed.
> > 
> > I believe that I understand the cause of this bug and have started
> > testing a fix.
> 
> Enclosed is the patch that I am testing.  It seems to generated reasonable
> code for the testcase that Carlos submitted today.  As far as I can tell,
> the bug has been present in the FSF sources since the first support for
> the 64-bit port (3.0 branch).  Thus, I expect the bug is present in debian
> 3.0.4, just not triggered.  The bug is triggered by the loop optimizer.
> 
> I would be interested in hearing if this solves the kernel build problem.
> The patch is for 3.5.  It might need a bit of hacking to apply it to
> earlier branches.

updated packages at

http://people.debian.org/~doko/gcc-3.3/gcc-3.3-hppa64_3.3.4-1_hppa.deb
http://people.debian.org/~doko/gcc-3.4/gcc-3.4-hppa64_3.4.0-3_hppa.deb

install the latter using dpkg -i --force-depends
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On Sun, Jun 20, 2004 at 08:59:32AM -0500, James Bottomley wrote:
> If you're going to investigate, my bet would be on the new pts
> behaviour.  I bet the utmp/wtmp utilities haven't met pts numbers going
> up that high before.

probably. "last" shows all the entries and "who" only shows
the entries up to the points pts numbers get small again:

grundler <531>last
grundler pts/284525   c-24-6-53-189.cl Sun Jun 20 10:54   still logged in   
grundler pts/284524   c-24-6-53-189.cl Sun Jun 20 10:49   still logged in   
dave     pts/283794   hse-ottawa-ppp23 Sun Jun 20 08:49    gone - no logout 
grundler pts/283793   c-24-6-53-189.cl Sat Jun 19 23:21    gone - no logout 
...
dave     pts/24749    hse-ottawa-ppp23 Thu Jun  3 21:44    gone - no logout 
carlos   pts/24748    ip47-168.ott.ist Thu Jun  3 13:27    gone - no logout 
grundler pts/5        c-24-6-53-189.cl Wed Jun  2 22:12 - 22:14  (00:02)    
grundler pts/4        c-24-6-53-189.cl Wed Jun  2 20:55 - 22:10  (01:15)    
...
reboot   system boot  2.6.6-pa4        Wed Jun  2 16:52         (17+18:17)  
grundler pts/233985   c-24-6-53-189.cl Tue Jun  1 21:24 - crash  (19:28)    
dave     pts/212624   hiauly1.hia.nrc. Tue Jun  1 14:57 - crash (1+01:54)   

wtmp begins Tue Jun  1 14:57:53 2004
grundler <532>who
carlos   pts/24748    Jun  3 13:27 (ip47-168.ott.istop.com)
dave     pts/24749    Jun  3 21:44 (hse-ottawa-ppp235823.sympatico.ca)
grundler pts/24750    Jun  3 21:53 (c-24-6-53-189.client.comcast.net)
...


The "no logout" message is another clue.
Either last is having problems with that or whoever writes the utmp/wtmp
entries does.

thanks,
grant
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Joel Soete writes:
> > deb http://ftp.debian.org/debian ../project/experimental main contrib non-free

sorry, should be ftp.de.debian.org, or every other mirror.

> ok i miss something in my sources.list I only have:
> deb http://ftp.de.debian.org/debian experimental main contrib non-free
> deb-src http://ftp.de.debian.org/debian experimental main contrib non-free
> 
> A link? (Packages, Sources, Release files only look like the same)

deb http://ftp.de.debian.org/debian ../project/experimental main contrib non-free
deb http://ftp.de.debian.org/debian experimental main contrib non-free

both lines should work.

> > then install it using apt-get -t experimental gcc-3.4

apt-get -t experimental install gcc-3.4


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On Mon, Jun 21, 2004 at 03:30:15PM +0200, Guy Martin wrote:
> skput:over: 10271684:194 put:138 dev:<NULL>kernel BUG at net/core/skbuff.c:88!
> Kernel addresses on the stack:

The fact that dev is NULL is kind of suspect. I'm not exactly sure, but
I do not think this is a PA-RISC bug. Perhaps netdev@oss.sgi.com could
be more helpful in debugging this.

>  [<10327bc0>] ip6_forward+0x1c4/0x434
>  [<10106138>] dump_stack+0x18/0x24
>  [<10271a4c>] i596_interrupt+0x930/0xdf0
>  [<10121a00>] activate_task+0x44/0xa8
>  [<104205b4>] start_kernel+0x4/0x1e4
>  [<101078ec>] do_irq+0x14c/0x154
>  [<102da778>] dev_watchdog+0x88/0xf4
>  [<10107ab4>] do_irq_mask+0xb4/0xcc
>  [<10129d34>] tasklet_action+0x78/0xe4
>  [<102377ec>] busdev_barked+0x3c/0x44
>  [<101078ec>] do_irq+0x14c/0x154
>  [<10102840>] __sched_text_end+0x44/0x48
>  [<101079f0>] do_cpu_irq_mask+0xfc/0x10c
>  [<101717a8>] may_open+0x58/0x1c8
>  [<1010c068>] intr_return+0x0/0x14
>  [<10112368>] cpu_idle+0x28/0x3c
>  [<101717a8>] may_open+0x58/0x1c8
>  [<10160c30>] dentry_open+0x154/0x238
>  [<101744b0>] locate_fd+0x154/0x190
>  [<104205b4>] start_kernel+0x4/0x1e4
>  [<10112378>] cpu_idle+0x38/0x3c
>  [<10420768>] start_kernel+0x1b8/0x1e4
> 

> KERNEL: assertion (!atomic_read(&skb->users)) failed at net/core/dev.c (1666)
> 
I think this is a symptom of the problem, afaict it does contribute.

Cheers,
-- 
Kyle McMartin
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On Sat, Jun 19, 2004 at 09:14:28PM -0400, John David Anglin wrote:
> > I believe that I understand the cause of this bug and have started
> > testing a fix.
> 
> Enclosed is the patch that I am testing.  It seems to generated reasonable
> code for the testcase that Carlos submitted today.  As far as I can tell,
> the bug has been present in the FSF sources since the first support for
> the 64-bit port (3.0 branch).  Thus, I expect the bug is present in debian
> 3.0.4, just not triggered.  The bug is triggered by the loop optimizer.
> 
> I would be interested in hearing if this solves the kernel build problem.
> The patch is for 3.5.  It might need a bit of hacking to apply it to
> earlier branches.

I re-read the last email about "bugs getting fixed if you show that the
community has interest", so I simplified randolph's bug down to a simple
structure alignment issue with two structures :) I'm glad to see that
was of some help in clarifying the bug.

I also estatic that you fixed this bug, it means I can start compiling
64-bit kernels again.

Kudos to Matthias for the hppa64-linux-gcc debs :)

c.

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On Sat, Jun 19, 2004 at 09:14:28PM -0400, John David Anglin wrote:
> I would be interested in hearing if this solves the kernel build problem.
> The patch is for 3.5.  It might need a bit of hacking to apply it to
> earlier branches.
> 
Aye, it fixes the kernel compile! Hooray!

(I built 2.6.7-pa1 successfully on my c3000 with it, at least, building
SMP now to double check, and haven't booted)

Cheers,
-- 
Kyle McMartin
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Subject: [parisc-linux] FW: An HP doc for TLDP
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Hi, I noticed that linux documentation regarding Hewlett Packard unix
server hardware (PA-RISC) is lacking.=A0 I recently taught myself =
DocBook,
and have started documenting some specifics of HP hardware.=A0=20
=A0
For example, I recently documented HP server firmware with DocBook,
please see http://www.porterdavis.org/computing/hp_boot/ for an
example.=A0=20
=A0
The next rev of the document will have a section on updating the
firmware as well.  This may be of use to you.

Keep up the good work!

Regards,
=A0
Greg

P.S.  The Linux Documentation Project people are considering whether to
accept this as a TLDP document.
=A0
=A0
=A0
=A0

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-------------------
> On Tue, Jun 22, 2004 at 06:22:36PM -0700, Greg Porter wrote:

[...]
>=20
> > For example, I recently documented HP server firmware with
DocBook,
> > please see http://www.porterdavis.org/computing/hp_boot/ for an
> > example.
>=20
> You *really* want to have those sections reviewed by other
volunteers
> before submitting them to TLDP.

This look much to me like a copy paste of the help menus of the BCH.
Maybe you want to have a look here:
http://www.pateam.org/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/index
.html

Sections 3, 4 and 5.

FYI, that howto is on TLDP, and will probably be slightly updated
soon.

>=20
> Here are some example comments from ch02 at:
> 	http://www.porterdavis.org/computing/hp_boot/ch02.html
>=20
> | Getting a PDC prompt
>=20
> You skipped console setup. things like how to setup a serial console
> vs graphical, disconnecting Keyboard/mouse to force serial console,
> <TAB>-key at poweron, etc.

Everything which is properly documented in the above mentionned howto.

HTH,


Thibaut VARENE
PA/Linux ESIEE Team
http://www.pateam.org/
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On Tue, Jun 22, 2004 at 11:19:09PM -0600, Grant Grundler wrote:
> ...on a PA-RISC machine.
> Hitachi and Precision Engeering also made PA-RISC machines.

And Convex, of course.  http://www.paralogos.com/DeadSuper/Convex/
http://www.fact-index.com/c/co/convex_computer.html

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Tue, Jun 22, 2004 at 06:22:36PM -0700, Greg Porter wrote:
> Hi, I noticed that linux documentation regarding Hewlett Packard unix
> server hardware (PA-RISC) is lacking.? I recently taught myself DocBook,
> and have started documenting some specifics of HP hardware.? 

Cool. But it's really not *that* badly documented.
See the user manuals in ftp://ftp.parisc-linux.org/docs/platforms/.
Nearly all of them describe how to get to BCH and what one can
do there for example.

> For example, I recently documented HP server firmware with DocBook,
> please see http://www.porterdavis.org/computing/hp_boot/ for an
> example.

You *really* want to have those sections reviewed by other volunteers
before submitting them to TLDP.

Here are some example comments from ch02 at:
	http://www.porterdavis.org/computing/hp_boot/ch02.html

| Getting a PDC prompt

You skipped console setup. things like how to setup a serial console
vs graphical, disconnecting Keyboard/mouse to force serial console,
<TAB>-key at poweron, etc.

BTW, in "HP speak" a PDC prompt is properly called a Boot Console Handler
(BCH) prompt. And there are several versions (depending on which
generation of box (eg "BOOT_ADMIN" is what many older boxes have).

| Processor Dependent Code (PDC) is HP speak for the firmware that comes
|  on an HP.

...on a PA-RISC machine.
Hitachi and Precision Engeering also made PA-RISC machines.

> ?
> The next rev of the document will have a section on updating the
> firmware as well.  This may be of use to you.

Yes, I suppose it will help some poor soul figure out what they
just bought on ebay. ;^)

> P.S.  The Linux Documentation Project people are considering whether to
> accept this as a TLDP document.

Please just make sure it's reviewed first.

thanks,
grant


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Subject: Re: [parisc-linux]      Heads up, 2.6.7-pa0 FTBS with 64-bit toolchain
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> The build of the toolchain jsut failled as previously:
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2004-April/022823.html>

Try

/CAD/parisc-linux/xc/bin/hppa-linux-gcc -print-file-name=libgcc.a
/CAD/parisc-linux/xc/bin/hppa-linux-gcc -print-file-name=libgcc_eh.a

This should show where thie compiler thinks libgcc.a and libgcc_eh.a
are.  You can see the full link command by adding "-Wl,-debug" to
the gcc command that failed.  GCC normally adds a "-L" option to the
directory where libgcc.a and libgcc_eh.a are installed.  If libgcc_eh.a
isn't there, you have a GCC build or install problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Framebuffer and 720/50
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Hi all!

 

I've had no problems whatsoever setting up Woody on my 720 - except for one
glitch - I can't get X to work.

My graphics adaptor is an HPA2269A. Everything looks good, but I cant get
/dev/fb0 to work. My kernel is 2.4.18-32.

Is X supported on this configuration at all? Help would be appreciated.

 

Thanks, WD


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<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
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<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>I&#8217;ve had no problems whatsoever setting =
up
Woody on my 720 &#8211; except for one glitch &#8211; I can&#8217;t get =
X to
work.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>My graphics adaptor is an HPA2269A. Everything =
looks
good, but I cant get /dev/fb0 to work. My kernel is =
2.4.18-32.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>Is X supported on this configuration at all? =
Help
would be appreciated.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>Thanks, WD<o:p></o:p></span></font></p>

</div>

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From: Linus Torvalds <torvalds@osdl.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] Fix the cpumask rewrite
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Cc: Andrew Morton <akpm@osdl.org>,
 Paul Jackson <pj@sgi.com>,
 PARISC list <parisc-linux@lists.parisc-linux.org>,
 Linux Kernel <linux-kernel@vger.kernel.org>
To: James Bottomley <James.Bottomley@SteelEye.com>
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On Sat, 26 Jun 2004, James Bottomley wrote:
>  
> This might be correct for x86 and itanium, but it isn't for parisc where
> our bitmap operators don't take volatile pointers.

Why not? The thing is, the bitmap operators are supposed to work on 
volatile data, ie people are literally using them for things like

	while (test_bit(TASKLET_STATE_SCHED, &t->state));

and the thing is supposed to work.

Now, I personally am not a big believer in the "volatile" keyword itself, 
since I believe that anybody who expects the compiler to generate 
different code for volatiles and non-volatiles is pretty much waiting for 
a bug to happen, but there are two cases where I think it's ok:

 - in function prototypes to show that the function can take volatile data 
   (and not complain).

 - as an arch-specific low-level implementation detail to avoid having to 
   use inline assembly just to load a value. Ie a _data_structure_ should 
   never be volatile, but it's ok to use a volatile pointer for a single 
   access.

I believe the bitop functions fall under #1 - the function is clearly
supposed to handle the case of a volatile pointer, and if it is inlined,
the above endless while-loop must not just load the bit once and turn it 
into an endless loop - it needs to re-load the thing every iteration.

> Since whether the bitmap operators are volatile or not is within the
> province of the architecture to decide,

I disagree. Why wouldn't they be volatile?

		Linus

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From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
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Subject: Re: [parisc-linux] Framebuffer and 720/50
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On Sun, 2004-06-27 16:06:33 +0200, Wolf-Dieter Kattnig <kattnig@cnd-online.=
com>
wrote in message <20040627140634.9D4E3246C2A@mail.customers.edis.at>:
> I've had no problems whatsoever setting up Woody on my 720 - except for o=
ne
> glitch - I can't get X to work.
>=20
> My graphics adaptor is an HPA2269A. Everything looks good, but I cant get
> /dev/fb0 to work. My kernel is 2.4.18-32.
>=20
> Is X supported on this configuration at all? Help would be appreciated.

STI framebuffer support is compiled in? Could you please provide kernel
log output? What XFree error messages do you get? What XFree driver did
you configure?

Missing /dev/fb0 indicates a problem (or a missing) framebuffer driver.
You'd probably update to something more recent than 2.4.18 ...

MfG, JBG

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From: Linus Torvalds <torvalds@osdl.org>
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Subject: [parisc-linux] Re: more (insane) jiffies ranting
Date: Sun, 27 Jun 2004 10:39:08 -0700 (PDT)
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To: Chris Wedgwood <cw@f00f.org>
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On Sat, 26 Jun 2004, Chris Wedgwood wrote:
> 
> On Sat, Jun 26, 2004 at 03:48:34PM -0700, Linus Torvalds wrote:
> 
> > But for most data structures, the way to control access is either
> > with proper locking (at which point they aren't volatile any more)
> > or through proper accessor functions (ie "jiffies_64" should
> > generally only be accessed with something that understands about
> > low/high word and update ordering and re-testing).
> 
> I don't entirely buy this.  Right now x86 code just assumes 32-bit
> loads are atomic and does them blindly in lots of places (ie. every
> user of jiffies just about).
> 
> Without the volatile it seems entirely reasonable gcc will produce
> correct, but wrong code here so I would argue 'volatile' is a property
> of the data in this case.

It's a property of the data _iff_:
 - it is _always_ volatile
 - it is only ever used atomically: this also means that it must be 
   totally independent of _all_ other data structures and have no linkages 
   to anything else.

Snd basically, the above is pretty much never true except possibly for 
real I/O accesses and sometimes things like simple "flags" (ie it's fine 
to use "volatile sigatomic_t flag;" in user programs to have signal 
handlers say "something happened" in a single-threaded environment).

NOTE! The "single-threaded environment" part really is important, and is 
one of the historical reasons for volatile having been more useful than it 
is today. If you are single-threaded and don't have issues like CPU memory 
ordering etc, then you can let the compiler do more of the work, and there 
are a lot of lockless algorithms that you can use that only depend on 
fairly simple semantics for "volatile".

But the fact is, for the kernel none of the above is ever really true. 
A 32-bit-atomic "jiffies" comes the closest, but even there the "always" 
property wasn't true - it wasn't true in the update phase, and we 
literally used to have something like this:

	*((unsigned long *)&jiffies)++;

to update jiffies and still get good code generation (now that we have a
64-bit jiffies and need to do more complex stuff anyway, we don't have
that any more, but you should be able to find it in 2.3.x kernels if I
remember correctly).

And _anything_ that has any data dependencies, "volatile" is totally
useless. Even the (acceptable in single-threaded user-space) "flag" thing 
is not valid usage in the kernel, since for a flag in a multi-threaded 
environment you still need an explicit CPU memory barrier in the code, 
making it impossible for the compiler to do the right thing anyway.

> > I repeat: it is the _code_ that knows about volatile rules, not the
> > data structure.
> 
> Except as I mentioned we have exceptions to this right now.

No we don't. The _only_ accepted exception is the special case of "the low
bits of jiffies", and that's accepted partly because of historical
reasons, and partly because it's fundamentally a data structure we don't
really care that much about. There should be no other ones.

And that special case _literally_ is only for people who don't care that 
much. Anybody who cares about "real time" needs to get xtime_lock and do 
the proper magic to get a real date.

So I don't see your argument. I'm obviously saying that "yes, we have 
_one_ case where we make a data structure volatile", but at the same time, 
that case is very much a "we don't really care too much about precision 
there, and even so people think we should have real accessor functions".

So I stand by the rule: we should make _code_ have the access rules, and
the data itself should never be volatile. And yes, jiffies breaks that
rule, but hey, that's not something I'm proud of.

		Linus
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From: Linus Torvalds <torvalds@osdl.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: more (insane) jiffies ranting
Date: Sun, 27 Jun 2004 10:39:08 -0700 (PDT)
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Cc: James Bottomley <James.Bottomley@SteelEye.com>,
 Andrew Morton <akpm@osdl.org>,
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 PARISC list <parisc-linux@lists.parisc-linux.org>,
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On Sat, 26 Jun 2004, Chris Wedgwood wrote:
> 
> On Sat, Jun 26, 2004 at 03:48:34PM -0700, Linus Torvalds wrote:
> 
> > But for most data structures, the way to control access is either
> > with proper locking (at which point they aren't volatile any more)
> > or through proper accessor functions (ie "jiffies_64" should
> > generally only be accessed with something that understands about
> > low/high word and update ordering and re-testing).
> 
> I don't entirely buy this.  Right now x86 code just assumes 32-bit
> loads are atomic and does them blindly in lots of places (ie. every
> user of jiffies just about).
> 
> Without the volatile it seems entirely reasonable gcc will produce
> correct, but wrong code here so I would argue 'volatile' is a property
> of the data in this case.

It's a property of the data _iff_:
 - it is _always_ volatile
 - it is only ever used atomically: this also means that it must be 
   totally independent of _all_ other data structures and have no linkages 
   to anything else.

Snd basically, the above is pretty much never true except possibly for 
real I/O accesses and sometimes things like simple "flags" (ie it's fine 
to use "volatile sigatomic_t flag;" in user programs to have signal 
handlers say "something happened" in a single-threaded environment).

NOTE! The "single-threaded environment" part really is important, and is 
one of the historical reasons for volatile having been more useful than it 
is today. If you are single-threaded and don't have issues like CPU memory 
ordering etc, then you can let the compiler do more of the work, and there 
are a lot of lockless algorithms that you can use that only depend on 
fairly simple semantics for "volatile".

But the fact is, for the kernel none of the above is ever really true. 
A 32-bit-atomic "jiffies" comes the closest, but even there the "always" 
property wasn't true - it wasn't true in the update phase, and we 
literally used to have something like this:

	*((unsigned long *)&jiffies)++;

to update jiffies and still get good code generation (now that we have a
64-bit jiffies and need to do more complex stuff anyway, we don't have
that any more, but you should be able to find it in 2.3.x kernels if I
remember correctly).

And _anything_ that has any data dependencies, "volatile" is totally
useless. Even the (acceptable in single-threaded user-space) "flag" thing 
is not valid usage in the kernel, since for a flag in a multi-threaded 
environment you still need an explicit CPU memory barrier in the code, 
making it impossible for the compiler to do the right thing anyway.

> > I repeat: it is the _code_ that knows about volatile rules, not the
> > data structure.
> 
> Except as I mentioned we have exceptions to this right now.

No we don't. The _only_ accepted exception is the special case of "the low
bits of jiffies", and that's accepted partly because of historical
reasons, and partly because it's fundamentally a data structure we don't
really care that much about. There should be no other ones.

And that special case _literally_ is only for people who don't care that 
much. Anybody who cares about "real time" needs to get xtime_lock and do 
the proper magic to get a real date.

So I don't see your argument. I'm obviously saying that "yes, we have 
_one_ case where we make a data structure volatile", but at the same time, 
that case is very much a "we don't really care too much about precision 
there, and even so people think we should have real accessor functions".

So I stand by the rule: we should make _code_ have the access rules, and
the data itself should never be volatile. And yes, jiffies breaks that
rule, but hey, that's not something I'm proud of.

		Linus

From - Thu Nov 08 21:32:13 2018
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From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] tiny iosapic abstraction
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Xref: news.gmane.org gmane.linux.ports.parisc:21773

Introduce a tiny bit of abstraction to parisc iosapic.c.

This makes more obvious the two reads to flush previous writes to the
hardware in iosapic_wr_irt_entry().  ia64 does neither one (perhaps
because we don't share vectors yet).  But even if the flush is really
needed on parisc, wouldn't only the second be needed, i.e.:

+	iosapic_write(isp->isi_hpa, IOSAPIC_IRDT_ENTRY(vi->irqline), dp0);
+	iosapic_write(isp->isi_hpa, IOSAPIC_IRDT_ENTRY_HI(vi->irqline), dp1);
	/* Read the window register to flush the writes down to HW  */
 	dp1 = readl(isp->isi_hpa+IOSAPIC_REG_WINDOW);

--- linux-2.6.7-pa1-iosapic/drivers/parisc/iosapic.c.orig	Fri Jun 25 15:19:46 2004
+++ linux-2.6.7-pa1-iosapic/drivers/parisc/iosapic.c	Fri Jun 25 16:12:45 2004
@@ -233,6 +233,18 @@
 #define IOSAPIC_IRDT_ENTRY(idx)		(0x10+(idx)*2)
 #define IOSAPIC_IRDT_ENTRY_HI(idx)	(0x11+(idx)*2)
 
+static inline unsigned int iosapic_read(unsigned long iosapic, unsigned int reg)
+{
+	writel(reg, iosapic + IOSAPIC_REG_SELECT);
+	return readl(iosapic + IOSAPIC_REG_WINDOW);
+}
+
+static inline void iosapic_write(unsigned long iosapic, unsigned int reg, u32 val)
+{
+	writel(reg, iosapic + IOSAPIC_REG_SELECT);
+	writel(val, iosapic + IOSAPIC_REG_WINDOW);
+}
+
 /*
 **     GFP_KERNEL includes __GFP_WAIT flag and that may not
 **     be acceptable. Since this is boot time, we shouldn't have
@@ -718,13 +730,8 @@
 	struct iosapic_info *isp = vi->iosapic;
 	u8 idx = vi->irqline;
 
-	/* point the window register to the lower word */
-	writel(IOSAPIC_IRDT_ENTRY(idx), isp->isi_hpa+IOSAPIC_REG_SELECT);
-	*dp0 = readl(isp->isi_hpa+IOSAPIC_REG_WINDOW);
-
-	/* point the window register to the higher word */
-	writel(IOSAPIC_IRDT_ENTRY_HI(idx), isp->isi_hpa+IOSAPIC_REG_SELECT);
-	*dp1 = readl(isp->isi_hpa+IOSAPIC_REG_WINDOW);
+	*dp0 = iosapic_read(isp->isi_hpa, IOSAPIC_IRDT_ENTRY(idx));
+	*dp1 = iosapic_read(isp->isi_hpa, IOSAPIC_IRDT_ENTRY_HI(idx));
 }
 
 
@@ -740,16 +747,12 @@
 		isp->isi_hpa,
 		dp0, dp1);
 
-	/* point the window register to the lower word */
-	writel(IOSAPIC_IRDT_ENTRY(vi->irqline), isp->isi_hpa+IOSAPIC_REG_SELECT);
-	writel( dp0, isp->isi_hpa+IOSAPIC_REG_WINDOW);
+	iosapic_write(isp->isi_hpa, IOSAPIC_IRDT_ENTRY(vi->irqline), dp0);
 
 	/* Read the window register to flush the writes down to HW  */
 	dp0 = readl(isp->isi_hpa+IOSAPIC_REG_WINDOW);
 
-	/* point the window register to the higher word */
-	writel(IOSAPIC_IRDT_ENTRY_HI(vi->irqline), isp->isi_hpa+IOSAPIC_REG_SELECT);
-	writel( dp1, isp->isi_hpa+IOSAPIC_REG_WINDOW);
+	iosapic_write(isp->isi_hpa, IOSAPIC_IRDT_ENTRY_HI(vi->irqline), dp1);
 
 	/* Read the window register to flush the writes down to HW  */
 	dp1 = readl(isp->isi_hpa+IOSAPIC_REG_WINDOW);
@@ -881,11 +884,7 @@
 	struct iosapic_info *isp = vi->iosapic;
 
 	for (d0=0x10; d0<0x1e; d0++) {
-		/* point the window register to the lower word */
-		writel(d0, isp->isi_hpa+IOSAPIC_REG_SELECT);
-
-		/* read the word */
-		d1 = readl(isp->isi_hpa+IOSAPIC_REG_WINDOW);
+		d1 = iosapic_read(isp->isi_hpa, d0);
 		printk(" %x", d1);
 	}
 }
@@ -933,11 +932,7 @@
 	ASSERT(isi);
 	ASSERT(isi->isi_hpa);
 
-	/* point window to the version register */
-	writel(IOSAPIC_REG_VERSION, isi->isi_hpa+IOSAPIC_REG_SELECT);

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On Mon, Jun 28, 2004 at 12:57:06PM -0600, Bjorn Helgaas wrote:
> Introduce a tiny bit of abstraction to parisc iosapic.c.
> 
> This makes more obvious the two reads to flush previous writes to the
> hardware in iosapic_wr_irt_entry().  ia64 does neither one (perhaps
> because we don't share vectors yet).  But even if the flush is really
> needed on parisc, wouldn't only the second be needed, i.e.:

Yes. that's correct.
But the flush has nothing to do with sharing vectors.
It's just to guarantee HW sees writes before returning
to the driver. Probably falls into the EIANAL error bucket
but it's not in the performance path.

Patch looks good. I'll apply and commit.

thanks,
grant
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On Sat, Jul 03, 2004 at 11:08:52AM -0700, Randolph Chung wrote:
> I am not clear about whether we need to treat "low memory"
> differently from "high memory" in any cases. willy pointed out to me
> that since we have a IOMMU we don't really need to care about ZONE_DMA
> vs ZONE_NORMAL,

That's correct. Becuase the virtual coherence index needed for cache
coherency, 32-bit PCI devices will always go through the IOMMU
even to DMA to physical memory < 4GB.

My hope is with ZX1 IOMMU, 64-bit devices can provide the virtual
coherence index as part of the DMA address. I haven't done all the
research yet to verify this will actually work.

grant
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On Sat, Jul 03, 2004 at 11:08:52AM -0700, Randolph Chung wrote:
...
> +/* We have these possible memory map layouts:
> + * Astro: 0-3.75, 67.75-68, 4-64
> + * zx1: 0-1, 257-260, 4-256
> + * Stretch (N-class): 0-2, 4-32, 34-xxx
> + */
> +
> +/* Since all the boundaries are on a 1GB-boundary, we can create
> + * an index table for pfn to nid lookup; each entry in pfnnid_map 
> + * represents 1GB, and contains the node that the memory belongs to. */

The comment and the above table don't exactly agree.
3.75 is not a 1GB boundary. Is that important for
what pfnnid_map[] is being used for?

Can someone explain the K-class memory layout for inclusion here?
Or did K-class never support more than 4GB?

Even though we don't support it, to be complete, can Bjorn or
someone explain Superdome memory holes? (chipset name?)

Secondly, ISTR a legacy VGA hole on ZX1 below 1GB.

Astro was supposed to suport legacy VGA as well but the HW was never
tested or officially supported.


> +
> +#define PFNNID_SHIFT (30 - PAGE_SHIFT)
> +extern unsigned char pfnnid_map[];
> +
> +static inline int pfn_to_nid(unsigned long pfn)
> +{
> +	unsigned int i;
> +    unsigned char r;
> +    i = pfn >> PFNNID_SHIFT;
> +    r = pfnnid_map[i];
> +    BUG_ON(r == 0xff);
> +
> +    return (int)r;
> +}
> +
> +static inline int pfn_valid(int pfn)
> +{
> +	int nid = pfn_to_nid(pfn);
> +
> +	if (nid >= 0)
> +		return (pfn < node_end_pfn(nid));
> +	return 0;
> +}
> +
> +#else /* !CONFIG_DISCONTIGMEM */
> +#define MAX_PHYSMEM_RANGES 	1 
> +#endif
> +#endif /* _PARISC_MMZONE_H */
> Index: include/asm-parisc/page.h
> ===================================================================
> RCS file: /var/cvs/linux-2.6/include/asm-parisc/page.h,v
> retrieving revision 1.9
> diff -u -p -r1.9 page.h
> --- include/asm-parisc/page.h	5 May 2004 23:02:47 -0000	1.9
> +++ include/asm-parisc/page.h	3 Jul 2004 06:55:49 -0000
> @@ -83,12 +83,6 @@ extern __inline__ int get_order(unsigned
>  	return order;
>  }
>  
> -#ifdef __LP64__
> -#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
> -#else
> -#define MAX_PHYSMEM_RANGES 1 /* First range is only range that fits in 32 bits */
> -#endif
> -
>  typedef struct __physmem_range {
>  	unsigned long start_pfn;
>  	unsigned long pages;       /* PAGE_SIZE pages */
> @@ -144,15 +138,16 @@ extern int npmem_ranges;
>  #define __pa(x)			((unsigned long)(x)-PAGE_OFFSET)
>  #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
>  
> +#ifndef CONFIG_DISCONTIGMEM
>  #define pfn_to_page(pfn)	(mem_map + (pfn))
>  #define page_to_pfn(page)	((unsigned long)((page) - mem_map))
>  #define pfn_valid(pfn)		((pfn) < max_mapnr)
> +#endif /* CONFIG_DISCONTIGMEM */
> +
>  #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
>  
> -#ifndef CONFIG_DISCONTIGMEM
> -#define virt_to_page(kaddr)     (mem_map + (__pa(kaddr) >> PAGE_SHIFT))
> -#define VALID_PAGE(page)	((page - mem_map) < max_mapnr)
> -#endif  /* !CONFIG_DISCONTIGMEM */
> +#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
> +#define virt_to_page(kaddr)     pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
>  
>  #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
>  				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
> Index: include/asm-parisc/pgtable.h
> ===================================================================
> RCS file: /var/cvs/linux-2.6/include/asm-parisc/pgtable.h,v
> retrieving revision 1.13
> diff -u -p -r1.13 pgtable.h
> --- include/asm-parisc/pgtable.h	1 Jul 2004 20:24:38 -0000	1.13
> +++ include/asm-parisc/pgtable.h	3 Jul 2004 06:55:49 -0000
> @@ -353,11 +353,7 @@ extern inline pte_t pte_modify(pte_t pte
>  
>  #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
>  
> -#ifdef CONFIG_DISCONTIGMEM
> -#define pte_page(x) (phys_to_page(pte_val(x)))
> -#else
> -#define pte_page(x) (mem_map+(pte_val(x) >> PAGE_SHIFT))
> -#endif
> +#define pte_page(pte)		(pfn_to_page(pte_pfn(pte)))
>  
>  #define pmd_page_kernel(pmd)	((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
>  
> --- include/asm-parisc/numnodes.h	Sat Jul  3 00:55:49 2004
> +++ include/asm-parisc/numnodes.h	Sat Jul  3 00:55:49 2004
> @@ -0,0 +1,9 @@
> +#ifndef _ASM_MAX_NUMNODES_H
> +#define _ASM_MAX_NUMNODES_H
> +
> +#include <linux/config.h>
> +
> +/* Max 8 Nodes */
> +#define NODES_SHIFT	3
> +
> +#endif /* _ASM_MAX_NUMNODES_H */
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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From: Ivar <orskaug@stud.ntnu.no>
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Subject: [parisc-linux] Building Firefox 0.9.1 / Binutils problem
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Xref: news.gmane.org gmane.linux.ports.parisc:21777


I'm trying to compile the latest Firefox from source for parisc-linux
unstable, however not suprisingly, I've run into problems.

The problem seems to be the linker, here is some output:

c++ -I/usr/X11R6/include -fno-rtti -fno-exceptions -Wall -Wconversion
-Wpointer-arith -Wcast-align -Woverloaded-virtual -Wsynth
-Wno-ctor-dtor-privacy -Wno-non-virtual-dtor -Wno-long-long -pedantic
-fshort-wchar -pthread -pipe  -DDEBUG -D_DEBUG -DDEBUG_root -DTRACING -g
-fno-inline -fPIC -shared -Wl,-h -Wl,libuconv.so -o libuconv.so  ugen.o
uscan.o umap.o nsUConvModule.o nsCharsetAliasImp.o
nsConverterInputStream.o nsTextToSubURI.o nsURLProperties.o
nsCharsetConverterManager.o nsUTF8ConverterService.o nsScriptableUConv.o
nsUnicodeDecodeHelper.o nsUnicodeEncodeHelper.o nsMappingCache.o
nsISO88591ToUnicode.o nsCP1252ToUnicode.o nsMacRomanToUnicode.o
nsUTF8ToUnicode.o nsUnicodeToISO88591.o nsUnicodeToCP1252.o
nsUnicodeToMacRoman.o nsUnicodeToUTF8.o nsUNIXCharset.o
-Wl,--whole-archive ../../../dist/lib/libucvlatin_s.a
../../../dist/lib/libucvibm_s.a ../../../dist/lib/libucvja_s.a
../../../dist/lib/libucvtw2_s.a ../../../dist/lib/libucvtw_s.a
../../../dist/lib/libucvko_s.a ../../../dist/lib/libucvcn_s.a
-Wl,--no-whole-archive ../../../dist/lib/libucvutil_s.a
../../../dist/lib/libunicharutil_s.a  -L../../../dist/bin -lxpcom
-L../../../dist/bin -L/usr/mozilla/dist/lib -lplds4 -lplc4 -lnspr4
-lpthread -ldl    -Wl,-Bsymbolic -ldl -lm
/usr/bin/ld: BFD 2.14.90.0.7 20031029 Debian GNU/Linux internal error,
aborting at ../../bfd/elf32-hppa.c line 3624 in
elf32_hppa_relocate_section

/usr/bin/ld: Please report this bug.

collect2: ld returned 1 exit status
make[4]: *** [libuconv.so] Error 1
make[4]: Leaving directory `/usr/mozilla/intl/uconv/src'
make[3]: *** [libs] Error 2
make[3]: Leaving directory `/usr/mozilla/intl/uconv'
make[2]: *** [libs] Error 2
make[2]: Leaving directory `/usr/mozilla/intl'
make[1]: *** [tier_9] Error 2
make[1]: Leaving directory `/usr/mozilla'
make: *** [default] Error 2

I'm rnning unstable:  binutils       2.14.90.0.7-8  and gcc/g++ 3.3

If anyone can indicate where to start in order to track down this
problem, its very appreciated!

cheers,

 Ivar
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] PATCH/RFC: discontig mem support for hppa
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Xref: news.gmane.org gmane.linux.ports.parisc:21778

> Joel Soete wrote:
> >Sorry for self reply but with "#include <asm/mmzone.h>" that works 
> >better but still failled:
> >arch/parisc/mm/init.c: In function `paging_init':
> >arch/parisc/mm/init.c:793: warning: implicit declaration of function 
> >`node_start_pfn'
> >arch/parisc/mm/init.c:793: error: `PFNNID_SHIFT' undeclared (first use 

sorry about that. try this one instead.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


Index: arch/parisc/Kconfig
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/Kconfig,v
retrieving revision 1.19
diff -u -p -r1.19 Kconfig
--- arch/parisc/Kconfig	1 Jul 2004 18:30:36 -0000	1.19
+++ arch/parisc/Kconfig	3 Jul 2004 06:55:49 -0000
@@ -136,6 +136,15 @@ config SMP
 
 	  If you don't know what to do here, say N.
 
+config DISCONTIGMEM
+	bool "Discontiguous memory support (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	help
+	  Say Y to support efficient handling of discontiguous physical memory,
+	  for architectures which are either NUMA (Non-Uniform Memory Access)
+	  or have huge holes in the physical address space for other reasons.
+	  See <file:Documentation/vm/numa> for more.
+
 config PREEMPT
 	bool
 #	bool "Preemptible Kernel"
Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/cache.c,v
retrieving revision 1.17
diff -u -p -r1.17 cache.c
--- arch/parisc/kernel/cache.c	30 May 2004 18:57:23 -0000	1.17
+++ arch/parisc/kernel/cache.c	3 Jul 2004 06:55:49 -0000
@@ -69,7 +69,7 @@ update_mmu_cache(struct vm_area_struct *
 {
 	struct page *page = pte_page(pte);
 
-	if (VALID_PAGE(page) && page_mapping(page) &&
+	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
 	    test_bit(PG_dcache_dirty, &page->flags)) {
 
 		flush_kernel_dcache_page(page_address(page));
Index: arch/parisc/kernel/inventory.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/inventory.c,v
retrieving revision 1.5
diff -u -p -r1.5 inventory.c
--- arch/parisc/kernel/inventory.c	4 Jun 2004 19:36:53 -0000	1.5
+++ arch/parisc/kernel/inventory.c	4 Jul 2004 17:46:52 -0000
@@ -25,6 +25,7 @@
 #include <linux/mm.h>
 #include <asm/hardware.h>
 #include <asm/io.h>
+#include <asm/mmzone.h>
 #include <asm/pdc.h>
 #include <asm/pdcpat.h>
 #include <asm/processor.h>
Index: arch/parisc/mm/init.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/mm/init.c,v
retrieving revision 1.6
diff -u -p -r1.6 init.c
--- arch/parisc/mm/init.c	24 May 2004 00:58:49 -0000	1.6
+++ arch/parisc/mm/init.c	4 Jul 2004 17:45:03 -0000
@@ -5,6 +5,7 @@
  *  Copyright 1999 SuSE GmbH
  *    changed by Philipp Rumpf
  *  Copyright 1999 Philipp Rumpf (prumpf@tux.org)
+ *  Copyright 2004 Randolph Chung (tausq@debian.org)
  *
  */
 
@@ -23,6 +24,7 @@
 #include <asm/pgalloc.h>
 #include <asm/tlb.h>
 #include <asm/pdc_chassis.h>
+#include <asm/mmzone.h>
 
 DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 
@@ -32,10 +34,11 @@ extern char _end;	/* end of BSS, defined
 extern char __init_begin, __init_end;
 
 #ifdef CONFIG_DISCONTIGMEM
-struct node_map_data node_data[MAX_PHYSMEM_RANGES];
-bootmem_data_t bmem_data[MAX_PHYSMEM_RANGES];
-unsigned char *chunkmap;
-unsigned int maxchunkmap;
+struct node_map_data node_data[MAX_NUMNODES];
+bootmem_data_t bmem_data[MAX_NUMNODES];
+
+/* Support up to 512GB of physical address space */
+unsigned char pfnnid_map[512];
 #endif
 
 static struct resource data_resource = {
@@ -119,21 +122,6 @@ static void __init setup_bootmem(void)
 
 	disable_sr_hashing(); /* Turn off space register hashing */
 
-#ifdef CONFIG_DISCONTIGMEM
-	/*
-	 * The below is still true as of 2.4.2. If this is ever fixed,
-	 * we can remove this warning!
-	 */
-
-	printk(KERN_WARNING "\n\n");
-	printk(KERN_WARNING "CONFIG_DISCONTIGMEM is enabled, which is probably a mistake. This\n");
-	printk(KERN_WARNING "option can lead to heavy swapping, even when there are gigabytes\n");
-	printk(KERN_WARNING "of free memory.\n\n");
-#endif
-
-#ifdef __LP64__
-
-#ifndef CONFIG_DISCONTIGMEM
 	/*
 	 * Sort the ranges. Since the number of ranges is typically
 	 * small, and performance is not an issue here, just do
@@ -160,11 +148,10 @@ static void __init setup_bootmem(void)
 		}
 	}
 
+#ifndef CONFIG_DISCONTIGMEM
 	/*
 	 * Throw out ranges that are too far apart (controlled by
-	 * MAX_GAP). If CONFIG_DISCONTIGMEM wasn't implemented so
-	 * poorly, we would recommend enabling that option, but,
-	 * until it is fixed, this is the best way to go.
+	 * MAX_GAP).
 	 */
 
 	for (i = 1; i < npmem_ranges; i++) {
@@ -172,6 +159,11 @@ static void __init setup_bootmem(void)
 			(pmem_ranges[i-1].start_pfn +
 			 pmem_ranges[i-1].pages) > MAX_GAP) {
 			npmem_ranges = i;
+			printk("Large gap in memory detected (%ld pages). "
+			       "Consider turning on CONFIG_DISCONTIGMEM\n",
+			       pmem_ranges[i].start_pfn -
+			       (pmem_ranges[i-1].start_pfn +
+			        pmem_ranges[i-1].pages));
 			break;
 		}
 	}
@@ -194,8 +186,6 @@ static void __init setup_bootmem(void)
 		}
 	}
 
-#endif /* __LP64__ */
-
 	sysram_resource_count = npmem_ranges;
 	for (i = 0; i < sysram_resource_count; i++) {
 		struct resource *res = &sysram_resources[i];
@@ -218,6 +208,7 @@ static void __init setup_bootmem(void)
 	mem_limit_func();       /* check for "mem=" argument */
 
 	mem_max = 0;
+	num_physpages = 0;
 	for (i = 0; i < npmem_ranges; i++) {
 		unsigned long rsize;
 
@@ -232,8 +223,10 @@ static void __init setup_bootmem(void)
 				npmem_ranges = i + 1;
 				mem_max = mem_limit;
 			}
+	        num_physpages += pmem_ranges[i].pages;
 			break;
 		}
+	    num_physpages += pmem_ranges[i].pages;
 		mem_max += rsize;
 	}
 
@@ -272,9 +265,13 @@ static void __init setup_bootmem(void)
 	bootmap_start_pfn = PAGE_ALIGN(__pa((unsigned long) &_end)) >> PAGE_SHIFT;
 
 #ifdef CONFIG_DISCONTIGMEM
-	for (i = 0; i < npmem_ranges; i++)
-		node_data[i].pg_data.bdata = &bmem_data[i];
+	for (i = 0; i < MAX_PHYSMEM_RANGES; i++) {
+		memset(NODE_DATA(i), 0, sizeof(pg_data_t));
+		NODE_DATA(i)->bdata = &bmem_data[i];
+	}
+    memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
 #endif
+
 	/*
 	 * Initialize and free the full range of memory in each range.
 	 * Note that the only writing these routines do are to the bootmap,
@@ -443,16 +440,20 @@ unsigned long pcxl_dma_start;
 
 void __init mem_init(void)
 {
-	int i;
-
 	high_memory = __va((max_pfn << PAGE_SHIFT));
-	max_mapnr = (virt_to_page(high_memory - 1) - mem_map) + 1;
 
-	num_physpages = 0;
-	mem_map = zone_table[0]->zone_mem_map;
-	for (i = 0; i < npmem_ranges; i++)
-		num_physpages += free_all_bootmem_node(NODE_DATA(i));
-	totalram_pages = num_physpages;
+#ifndef CONFIG_DISCONTIGMEM
+	max_mapnr = page_to_pfn(virt_to_page(high_memory - 1)) + 1;
+	mem_map = zone_table[ZONE_DMA]->zone_mem_map;
+#endif
+
+#ifndef CONFIG_DISCONTIGMEM
+	free_all_bootmem();
+#else
+	free_all_bootmem_node(NODE_DATA(0));
+#endif
+
+    totalram_pages = num_physpages;
 
 	printk(KERN_INFO "Memory: %luk available\n", num_physpages << (PAGE_SHIFT-10));
 
@@ -485,6 +486,7 @@ void show_mem(void)
 	printk(KERN_INFO "Mem-info:\n");
 	show_free_areas();
 	printk(KERN_INFO "Free swap:	 %6dkB\n",nr_swap_pages<<(PAGE_SHIFT-10));
+#ifndef CONFIG_DISCONTIGMEM
 	i = max_mapnr;
 	while (i-- > 0) {
 		total++;
@@ -497,6 +499,27 @@ void show_mem(void)
 		else
 			shared += page_count(&mem_map[i]) - 1;
 	}
+#else
+    for (i = 0; i < npmem_ranges; i++) {
+        int j;
+
+        for (j = node_start_pfn(i); j < node_end_pfn(i); j++) {
+            struct page *p;
+
+            p = node_mem_map(i) + j - node_start_pfn(i);
+
+			total++;
+			if (PageReserved(p))
+				reserved++;
+			else if (PageSwapCache(p))
+				cached++;
+			else if (!page_count(p))
+				free++;
+			else
+				shared += page_count(p) - 1;
+        }
+    }
+#endif
 	printk(KERN_INFO "%d pages of RAM\n", total);
 	printk(KERN_INFO "%d reserved pages\n", reserved);
 	printk(KERN_INFO "%d pages shared\n", shared);
@@ -757,61 +780,27 @@ void __init paging_init(void)
 	flush_tlb_all_local();
 
 	for (i = 0; i < npmem_ranges; i++) {
-		unsigned long zones_size[MAX_NR_ZONES] = { 0, 0, 0, };
+		unsigned long zones_size[MAX_NR_ZONES] = { 0, 0, 0 };
+
+		/* We have an IOMMU, so all memory can go into a single
+		   ZONE_DMA zone. */
 
 		zones_size[ZONE_DMA] = pmem_ranges[i].pages;
+
 		free_area_init_node(i,NODE_DATA(i),NULL,zones_size,
-				(pmem_ranges[i].start_pfn << PAGE_SHIFT),0);
-	}
+				pmem_ranges[i].start_pfn, 0);
 
 #ifdef CONFIG_DISCONTIGMEM
-	/*
-	 * Initialize support for virt_to_page() macro.
-	 *
-	 * Note that MAX_ADDRESS is the largest virtual address that
-	 * we can map. However, since we map all physical memory into
-	 * the kernel address space, it also has an effect on the maximum
-	 * physical address we can map (MAX_ADDRESS - PAGE_OFFSET).
-	 */
-
-	maxchunkmap = MAX_ADDRESS >> CHUNKSHIFT;
-	chunkmap = (unsigned char *)alloc_bootmem(maxchunkmap);
-
-	for (i = 0; i < maxchunkmap; i++)
-	    chunkmap[i] = BADCHUNK;
-
-	for (i = 0; i < npmem_ranges; i++) {
-
-		ADJ_NODE_MEM_MAP(i) = NODE_MEM_MAP(i) - pmem_ranges[i].start_pfn;
 		{
-			unsigned long chunk_paddr;
-			unsigned long end_paddr;
-			int chunknum;
-
-			chunk_paddr = (pmem_ranges[i].start_pfn << PAGE_SHIFT);
-			end_paddr = chunk_paddr + (pmem_ranges[i].pages << PAGE_SHIFT);
-			chunk_paddr &= CHUNKMASK;
-
-			chunknum = (int)CHUNKNUM(chunk_paddr);
-			while (chunk_paddr < end_paddr) {
-				if (chunknum >= maxchunkmap)
-					goto badchunkmap1;
-				if (chunkmap[chunknum] != BADCHUNK)
-					goto badchunkmap2;
-				chunkmap[chunknum] = (unsigned char)i;
-				chunk_paddr += CHUNKSZ;
-				chunknum++;
-			}
+		    int j;
+		    for (j = (node_start_pfn(i) >> PFNNID_SHIFT);
+			 j < (node_end_pfn(i) >> PFNNID_SHIFT);
+			 j++) {
+			pfnnid_map[j] = i;
+		    }
 		}
-	}
-
-	return;
-
-badchunkmap1:
-	panic("paging_init: Physical address exceeds maximum address space!\n");
-badchunkmap2:
-	panic("paging_init: Collision in chunk map array. CHUNKSZ needs to be smaller\n");
 #endif
+	}
 }
 
 #ifdef CONFIG_PA20
Index: fs/bio.c
===================================================================
RCS file: /var/cvs/linux-2.6/fs/bio.c,v
retrieving revision 1.9
diff -u -p -r1.9 bio.c
--- fs/bio.c	23 May 2004 23:52:39 -0000	1.9
+++ fs/bio.c	3 Jul 2004 06:55:49 -0000
@@ -345,8 +345,8 @@ static int __bio_add_page(request_queue_
 	}
 
 	/* If we may be able to merge these biovecs, force a recount */
-	if(BIOVEC_PHYS_MERGEABLE(bvec-1, bvec) ||
-	   BIOVEC_VIRT_MERGEABLE(bvec-1, bvec))
+	if (bio->bi_vcnt && (BIOVEC_PHYS_MERGEABLE(bvec-1, bvec) ||
+	    BIOVEC_VIRT_MERGEABLE(bvec-1, bvec)))
 		bio->bi_flags &= ~(1 << BIO_SEG_VALID);
 
 	bio->bi_vcnt++;
Index: include/asm-parisc/io.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/io.h,v
retrieving revision 1.7
diff -u -p -r1.7 io.h
--- include/asm-parisc/io.h	10 Mar 2004 19:24:49 -0000	1.7
+++ include/asm-parisc/io.h	3 Jul 2004 06:55:49 -0000
@@ -24,11 +24,6 @@ extern unsigned long parisc_vmerge_max_s
 #define virt_to_bus virt_to_phys
 #define bus_to_virt phys_to_virt
 
-/*
- * Change "struct page" to physical address.
- */
-#define page_to_phys(page)	((page - mem_map) << PAGE_SHIFT)
-
 /* Memory mapped IO */
 
 extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
Index: include/asm-parisc/mmzone.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/mmzone.h,v
retrieving revision 1.1
diff -u -p -r1.1 mmzone.h
--- include/asm-parisc/mmzone.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/mmzone.h	3 Jul 2004 17:48:26 -0000
@@ -1,31 +1,89 @@
 #ifndef _PARISC_MMZONE_H
 #define _PARISC_MMZONE_H
 
+#ifdef CONFIG_DISCONTIGMEM
+
+#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
+extern int npmem_ranges;
+
 struct node_map_data {
     pg_data_t pg_data;
-    struct page *adj_node_mem_map;
 };
 
 extern struct node_map_data node_data[];
-extern unsigned char *chunkmap;
-
-#define BADCHUNK                ((unsigned char)0xff)
-#define CHUNKSZ                 (256*1024*1024)
-#define CHUNKSHIFT              28
-#define CHUNKMASK               (~(CHUNKSZ - 1))
-#define CHUNKNUM(paddr)         ((paddr) >> CHUNKSHIFT)
 
 #define NODE_DATA(nid)          (&node_data[nid].pg_data)
-#define NODE_MEM_MAP(nid)       (NODE_DATA(nid)->node_mem_map)
-#define ADJ_NODE_MEM_MAP(nid)   (node_data[nid].adj_node_mem_map)
-
-#define phys_to_page(paddr) \
-	(ADJ_NODE_MEM_MAP(chunkmap[CHUNKNUM((paddr))]) \
-	+ ((paddr) >> PAGE_SHIFT))
-
-#define virt_to_page(kvaddr) phys_to_page(__pa(kvaddr))
-
-/* This is kind of bogus, need to investigate performance of doing it right */
-#define VALID_PAGE(page)	((page - mem_map) < max_mapnr)
 
-#endif /* !_PARISC_MMZONE_H */
+/*
+ * Given a kernel address, find the home node of the underlying memory.
+ */
+#define kvaddr_to_nid(kaddr)	pfn_to_nid(__pa(kaddr) >> PAGE_SHIFT)
+
+#define node_mem_map(nid)	(NODE_DATA(nid)->node_mem_map)
+#define node_start_pfn(nid)	(NODE_DATA(nid)->node_start_pfn)
+#define node_end_pfn(nid)						\
+({									\
+	pg_data_t *__pgdat = NODE_DATA(nid);				\
+	__pgdat->node_start_pfn + __pgdat->node_spanned_pages;		\
+})
+#define node_localnr(pfn, nid)		((pfn) - node_start_pfn(nid))
+
+#define local_mapnr(kvaddr)						\
+({									\
+	unsigned long __pfn = __pa(kvaddr) >> PAGE_SHIFT;		\
+	(__pfn - node_start_pfn(pfn_to_nid(__pfn)));			\
+})
+
+#define pfn_to_page(pfn)						\
+({									\
+	unsigned long __pfn = (pfn);					\
+	int __node  = pfn_to_nid(__pfn);				\
+	&node_mem_map(__node)[node_localnr(__pfn,__node)];		\
+})
+
+#define page_to_pfn(pg)							\
+({									\
+	struct page *__page = pg;					\
+	struct zone *__zone = page_zone(__page);			\
+	BUG_ON(__zone == NULL);						\
+	(unsigned long)(__page - __zone->zone_mem_map)			\
+		+ __zone->zone_start_pfn;				\
+})
+
+/* We have these possible memory map layouts:
+ * Astro: 0-3.75, 67.75-68, 4-64
+ * zx1: 0-1, 257-260, 4-256
+ * Stretch (N-class): 0-2, 4-32, 34-xxx
+ */
+
+/* Since all the boundaries are on a 1GB-boundary, we can create
+ * an index table for pfn to nid lookup; each entry in pfnnid_map 
+ * represents 1GB, and contains the node that the memory belongs to. */
+
+#define PFNNID_SHIFT (30 - PAGE_SHIFT)
+extern unsigned char pfnnid_map[];
+
+static inline int pfn_to_nid(unsigned long pfn)
+{
+	unsigned int i;
+    unsigned char r;
+    i = pfn >> PFNNID_SHIFT;
+    r = pfnnid_map[i];
+    BUG_ON(r == 0xff);
+
+    return (int)r;
+}
+
+static inline int pfn_valid(int pfn)
+{
+	int nid = pfn_to_nid(pfn);
+
+	if (nid >= 0)
+		return (pfn < node_end_pfn(nid));
+	return 0;
+}
+
+#else /* !CONFIG_DISCONTIGMEM */
+#define MAX_PHYSMEM_RANGES 	1 
+#endif
+#endif /* _PARISC_MMZONE_H */
Index: include/asm-parisc/page.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/page.h,v
retrieving revision 1.9
diff -u -p -r1.9 page.h
--- include/asm-parisc/page.h	5 May 2004 23:02:47 -0000	1.9
+++ include/asm-parisc/page.h	3 Jul 2004 06:55:49 -0000
@@ -83,12 +83,6 @@ extern __inline__ int get_order(unsigned
 	return order;
 }
 
-#ifdef __LP64__
-#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
-#else
-#define MAX_PHYSMEM_RANGES 1 /* First range is only range that fits in 32 bits */
-#endif
-
 typedef struct __physmem_range {
 	unsigned long start_pfn;
 	unsigned long pages;       /* PAGE_SIZE pages */
@@ -144,15 +138,16 @@ extern int npmem_ranges;
 #define __pa(x)			((unsigned long)(x)-PAGE_OFFSET)
 #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
 
+#ifndef CONFIG_DISCONTIGMEM
 #define pfn_to_page(pfn)	(mem_map + (pfn))
 #define page_to_pfn(page)	((unsigned long)((page) - mem_map))
 #define pfn_valid(pfn)		((pfn) < max_mapnr)
+#endif /* CONFIG_DISCONTIGMEM */
+
 #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 
-#ifndef CONFIG_DISCONTIGMEM
-#define virt_to_page(kaddr)     (mem_map + (__pa(kaddr) >> PAGE_SHIFT))
-#define VALID_PAGE(page)	((page - mem_map) < max_mapnr)
-#endif  /* !CONFIG_DISCONTIGMEM */
+#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
+#define virt_to_page(kaddr)     pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
Index: include/asm-parisc/pgtable.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pgtable.h,v
retrieving revision 1.13
diff -u -p -r1.13 pgtable.h
--- include/asm-parisc/pgtable.h	1 Jul 2004 20:24:38 -0000	1.13
+++ include/asm-parisc/pgtable.h	3 Jul 2004 06:55:49 -0000
@@ -353,11 +353,7 @@ extern inline pte_t pte_modify(pte_t pte
 
 #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
 
-#ifdef CONFIG_DISCONTIGMEM
-#define pte_page(x) (phys_to_page(pte_val(x)))
-#else
-#define pte_page(x) (mem_map+(pte_val(x) >> PAGE_SHIFT))
-#endif
+#define pte_page(pte)		(pfn_to_page(pte_pfn(pte)))
 
 #define pmd_page_kernel(pmd)	((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
 
--- include/asm-parisc/numnodes.h	Sat Jul  3 00:55:49 2004
+++ include/asm-parisc/numnodes.h	Sat Jul  3 00:55:49 2004
@@ -0,0 +1,9 @@
+#ifndef _ASM_MAX_NUMNODES_H
+#define _ASM_MAX_NUMNODES_H
+
+#include <linux/config.h>
+
+/* Max 8 Nodes */
+#define NODES_SHIFT	3
+
+#endif /* _ASM_MAX_NUMNODES_H */
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From - Thu Nov 08 21:32:14 2018
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From: Mike Frysinger <vapier@gentoo.org>
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Subject: [parisc-linux] linking problem with 2.4.26-p4
Date: Sun, 4 Jul 2004 23:06:48 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:21779

just forwarding a bug report in the hopes that the peeps who maintain the -pa 
patchsets can fix this properly :)

http://bugs.gentoo.org/show_bug.cgi?id=56087

in some configurations, setting CONFIG_GSC_PS2=n can cause a linking error:
drivers/hil/hil.o(.text.hil:bkd_connect+0x424): In function 'hil_kbd_connect':
: undefined reference to 'register_ps2_keybfuncs'

thanks
-mike
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From: Kyle McMartin <kyle@engsoc.org>
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Subject: Re: [parisc-linux] linking problem with 2.4.26-p4
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On Sun, Jul 04, 2004 at 11:06:48PM -0400, Mike Frysinger wrote:
> http://bugs.gentoo.org/show_bug.cgi?id=56087
> 
I think you posted the wrong link here.

> in some configurations, setting CONFIG_GSC_PS2=n can cause a linking error:
> drivers/hil/hil.o(.text.hil:bkd_connect+0x424): In function 'hil_kbd_connect':
> : undefined reference to 'register_ps2_keybfuncs'
> 
.config?

Regards,
-- 
Kyle McMartin
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On Sunday 04 July 2004 11:05 pm, Kyle McMartin wrote:
> On Sun, Jul 04, 2004 at 11:06:48PM -0400, Mike Frysinger wrote:
> > http://bugs.gentoo.org/show_bug.cgi?id=56087
>
> I think you posted the wrong link here.

err yeah ... too many bug windows open and my copy&paste buffers out of 
sync ;)
http://bugs.gentoo.org/show_bug.cgi?id=55265

> .config?

it's posted in the bugreport
-mike
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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] CONFIG_DISCONTIGMEM, try 2
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Xref: news.gmane.org gmane.linux.ports.parisc:21782

ok, attached is a 2nd version of the patch, with some of the bugs
identified by Grant and Joel fixed. All the memory is now identified as
available on boot, but I've run into some more nasty problems :(

The first problem is this, from include/asm-parisc/page.h:

     51 /* NOTE: even on 64 bits, these entries are __u32 because we allocate
     52  * the pmd and pgd in ZONE_DMA (i.e. under 4GB) */
     53 typedef struct { __u32 pmd; } pmd_t;
     54 typedef struct { __u32 pgd; } pgd_t;

Since we put all memory into ZONE_DMA, the comment is wrong -- ZONE_DMA
memory can in fact be >4GB. So, either we partition the memory so that
it adheres to the above constraint, otherwise we will need to redo the
pgd/pmd layouts a bit. jejb: comments? :) (In fact this will be a
problem without CONFIG_DISCONTIGMEM if we have a machine that 
supported >4GB of contiguous memory)

For now, I hacked the code to only put the first memory range into
ZONE_DMA, and the rest into ZONE_NORMAL to workaround the above, but
this identified a second problem:

The zone allocator builds zone lists to derive from where physical pages
should be allocated. There is a preference to satisfy allocations from
the same node, with a "fallback" mechanism of satisfying "normal" memory
allocations from the DMA zone. This means that if we have some 
application that requested enough memory to fill up memory in the first
region, all subsequent DMA allocations will fail. 

On parisc we happen to also allocate pgd/pmd's from DMA memory, so
you can no longer create new page directory mappings, and the system
claims to run out of memory even though there is plenty of ZONE_NORMAL
memory remaining. :(

I don't quite understand why the zone allocator behaves this way --
there is some NUMA logic to identify the node id and node distances in
order to bias the selection of the zonelists, but I don't think we
should need that to get this to work.... currently it is biased towards
keeping allocations in the same node rather than in the same zone.

Comments? Did I miss anything? 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


Index: arch/parisc/Kconfig
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/Kconfig,v
retrieving revision 1.19
diff -u -p -r1.19 Kconfig
--- arch/parisc/Kconfig	1 Jul 2004 18:30:36 -0000	1.19
+++ arch/parisc/Kconfig	3 Jul 2004 06:55:49 -0000
@@ -136,6 +136,15 @@ config SMP
 
 	  If you don't know what to do here, say N.
 
+config DISCONTIGMEM
+	bool "Discontiguous memory support (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	help
+	  Say Y to support efficient handling of discontiguous physical memory,
+	  for architectures which are either NUMA (Non-Uniform Memory Access)
+	  or have huge holes in the physical address space for other reasons.
+	  See <file:Documentation/vm/numa> for more.
+
 config PREEMPT
 	bool
 #	bool "Preemptible Kernel"
Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/cache.c,v
retrieving revision 1.17
diff -u -p -r1.17 cache.c
--- arch/parisc/kernel/cache.c	30 May 2004 18:57:23 -0000	1.17
+++ arch/parisc/kernel/cache.c	3 Jul 2004 06:55:49 -0000
@@ -69,7 +69,7 @@ update_mmu_cache(struct vm_area_struct *
 {
 	struct page *page = pte_page(pte);
 
-	if (VALID_PAGE(page) && page_mapping(page) &&
+	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
 	    test_bit(PG_dcache_dirty, &page->flags)) {
 
 		flush_kernel_dcache_page(page_address(page));
Index: arch/parisc/kernel/inventory.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/inventory.c,v
retrieving revision 1.5
diff -u -p -r1.5 inventory.c
--- arch/parisc/kernel/inventory.c	4 Jun 2004 19:36:53 -0000	1.5
+++ arch/parisc/kernel/inventory.c	4 Jul 2004 17:46:52 -0000
@@ -25,6 +25,7 @@
 #include <linux/mm.h>
 #include <asm/hardware.h>
 #include <asm/io.h>
+#include <asm/mmzone.h>
 #include <asm/pdc.h>
 #include <asm/pdcpat.h>
 #include <asm/processor.h>
Index: arch/parisc/kernel/parisc_ksyms.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/parisc_ksyms.c,v
retrieving revision 1.16
diff -u -p -r1.16 parisc_ksyms.c
--- arch/parisc/kernel/parisc_ksyms.c	6 Mar 2004 14:43:46 -0000	1.16
+++ arch/parisc/kernel/parisc_ksyms.c	5 Jul 2004 21:53:23 -0000
@@ -173,3 +173,9 @@ EXPORT_SYMBOL(__moddi3);
 extern void $$dyncall(void);
 EXPORT_SYMBOL($$dyncall);
 #endif
+
+#ifdef CONFIG_DISCONTIGMEM
+#include <asm/mmzone.h>
+EXPORT_SYMBOL(node_data);
+EXPORT_SYMBOL(pfnnid_map);
+#endif
Index: arch/parisc/mm/init.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/mm/init.c,v
retrieving revision 1.6
diff -u -p -r1.6 init.c
--- arch/parisc/mm/init.c	24 May 2004 00:58:49 -0000	1.6
+++ arch/parisc/mm/init.c	6 Jul 2004 04:51:19 -0000
@@ -5,6 +5,7 @@
  *  Copyright 1999 SuSE GmbH
  *    changed by Philipp Rumpf
  *  Copyright 1999 Philipp Rumpf (prumpf@tux.org)
+ *  Copyright 2004 Randolph Chung (tausq@debian.org)
  *
  */
 
@@ -23,6 +24,7 @@
 #include <asm/pgalloc.h>
 #include <asm/tlb.h>
 #include <asm/pdc_chassis.h>
+#include <asm/mmzone.h>
 
 DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 
@@ -32,10 +34,11 @@ extern char _end;	/* end of BSS, defined
 extern char __init_begin, __init_end;
 
 #ifdef CONFIG_DISCONTIGMEM
-struct node_map_data node_data[MAX_PHYSMEM_RANGES];
-bootmem_data_t bmem_data[MAX_PHYSMEM_RANGES];
-unsigned char *chunkmap;
-unsigned int maxchunkmap;
+struct node_map_data node_data[MAX_NUMNODES];
+bootmem_data_t bmem_data[MAX_NUMNODES];
+
+/* Support up to 512GB of physical address space */
+unsigned char pfnnid_map[512];
 #endif
 
 static struct resource data_resource = {
@@ -119,21 +122,6 @@ static void __init setup_bootmem(void)
 
 	disable_sr_hashing(); /* Turn off space register hashing */
 
-#ifdef CONFIG_DISCONTIGMEM
-	/*
-	 * The below is still true as of 2.4.2. If this is ever fixed,
-	 * we can remove this warning!
-	 */
-
-	printk(KERN_WARNING "\n\n");
-	printk(KERN_WARNING "CONFIG_DISCONTIGMEM is enabled, which is probably a mistake. This\n");
-	printk(KERN_WARNING "option can lead to heavy swapping, even when there are gigabytes\n");
-	printk(KERN_WARNING "of free memory.\n\n");
-#endif
-
-#ifdef __LP64__
-
-#ifndef CONFIG_DISCONTIGMEM
 	/*
 	 * Sort the ranges. Since the number of ranges is typically
 	 * small, and performance is not an issue here, just do
@@ -160,11 +148,10 @@ static void __init setup_bootmem(void)
 		}
 	}
 
+#ifndef CONFIG_DISCONTIGMEM
 	/*
 	 * Throw out ranges that are too far apart (controlled by
-	 * MAX_GAP). If CONFIG_DISCONTIGMEM wasn't implemented so
-	 * poorly, we would recommend enabling that option, but,
-	 * until it is fixed, this is the best way to go.
+	 * MAX_GAP).
 	 */
 
 	for (i = 1; i < npmem_ranges; i++) {
@@ -172,6 +159,11 @@ static void __init setup_bootmem(void)
 			(pmem_ranges[i-1].start_pfn +
 			 pmem_ranges[i-1].pages) > MAX_GAP) {
 			npmem_ranges = i;
+			printk("Large gap in memory detected (%ld pages). "
+			       "Consider turning on CONFIG_DISCONTIGMEM\n",
+			       pmem_ranges[i].start_pfn -
+			       (pmem_ranges[i-1].start_pfn +
+			        pmem_ranges[i-1].pages));
 			break;
 		}
 	}
@@ -194,8 +186,6 @@ static void __init setup_bootmem(void)
 		}
 	}
 
-#endif /* __LP64__ */
-
 	sysram_resource_count = npmem_ranges;
 	for (i = 0; i < sysram_resource_count; i++) {
 		struct resource *res = &sysram_resources[i];
@@ -218,6 +208,7 @@ static void __init setup_bootmem(void)
 	mem_limit_func();       /* check for "mem=" argument */
 
 	mem_max = 0;
+	num_physpages = 0;
 	for (i = 0; i < npmem_ranges; i++) {
 		unsigned long rsize;
 
@@ -232,15 +223,16 @@ static void __init setup_bootmem(void)
 				npmem_ranges = i + 1;
 				mem_max = mem_limit;
 			}
+	        num_physpages += pmem_ranges[i].pages;
 			break;
 		}
+	    num_physpages += pmem_ranges[i].pages;
 		mem_max += rsize;
 	}
 
 	printk(KERN_INFO "Total Memory: %ld Mb\n",mem_max >> 20);
 
 #ifndef CONFIG_DISCONTIGMEM
-
 	/* Merge the ranges, keeping track of the holes */
 
 	{
@@ -272,9 +264,18 @@ static void __init setup_bootmem(void)
 	bootmap_start_pfn = PAGE_ALIGN(__pa((unsigned long) &_end)) >> PAGE_SHIFT;
 
 #ifdef CONFIG_DISCONTIGMEM
+	for (i = 0; i < MAX_PHYSMEM_RANGES; i++) {
+		memset(NODE_DATA(i), 0, sizeof(pg_data_t));
+		NODE_DATA(i)->bdata = &bmem_data[i];
+	}
+	memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
+
+	numnodes = npmem_ranges;
+
 	for (i = 0; i < npmem_ranges; i++)
-		node_data[i].pg_data.bdata = &bmem_data[i];
+		node_set_online(i);
 #endif
+
 	/*
 	 * Initialize and free the full range of memory in each range.
 	 * Note that the only writing these routines do are to the bootmap,
@@ -443,16 +444,66 @@ unsigned long pcxl_dma_start;
 
 void __init mem_init(void)
 {
-	int i;
-
 	high_memory = __va((max_pfn << PAGE_SHIFT));
-	max_mapnr = (virt_to_page(high_memory - 1) - mem_map) + 1;
 
-	num_physpages = 0;
-	mem_map = zone_table[0]->zone_mem_map;
-	for (i = 0; i < npmem_ranges; i++)
-		num_physpages += free_all_bootmem_node(NODE_DATA(i));
-	totalram_pages = num_physpages;
+#ifndef CONFIG_DISCONTIGMEM
+	max_mapnr = page_to_pfn(virt_to_page(high_memory - 1)) + 1;
+	mem_map = zone_table[ZONE_DMA]->zone_mem_map;
+	totalram_pages += free_all_bootmem();
+#else
+	{
+		int i;
+
+		for (i = 0; i < npmem_ranges; i++)
+			totalram_pages += free_all_bootmem_node(NODE_DATA(i));
+	}
+
+	{
+		/* Override the default zonelist: the default zonelist
+		 * is biased towards satisfying allocations from the
+		 * same node instead of the same zone; this causes
+		 * problems for us since this will rapidly use up
+		 * ZONE_DMA memory and fail __GFP_DMA allocation 
+		 * requests. */
+
+		struct zonelist zl[MAX_NR_ZONES];
+		int i;
+
+		for (i = 0; i < MAX_NR_ZONES; i++) {
+			int ent = 0;
+			int j, k;
+
+			for (j = 0; j < npmem_ranges; j++) {
+				for (k = 0; k < MAX_NR_ZONES; k++) {
+					struct zone *z;
+
+					z = &NODE_DATA(j)->node_zones[k];
+					if (i == k && z->present_pages)
+						zl[i].zones[ent++] = z;
+				}
+			}
+
+			if (i != ZONE_DMA) {
+				for (j = 0; j < npmem_ranges; j++) {
+					for (k = 0; k < MAX_NR_ZONES; k++) {
+						struct zone *z;
+
+						z = &NODE_DATA(j)->node_zones[k];
+						if (i != k && z->present_pages)
+							zl[i].zones[ent++] = z;
+					}
+				}
+			}
+			zl[i].zones[ent] = NULL;
+		}
+
+		for (i = 0; i < npmem_ranges; i++) {
+			NODE_DATA(i)->node_zonelists[0] = zl[ZONE_NORMAL];
+			NODE_DATA(i)->node_zonelists[__GFP_DMA] = zl[ZONE_DMA];
+			NODE_DATA(i)->node_zonelists[__GFP_HIGHMEM] = zl[ZONE_HIGHMEM];
+		}
+	}
+#endif
 
 	printk(KERN_INFO "Memory: %luk available\n", num_physpages << (PAGE_SHIFT-10));
 
@@ -485,6 +536,7 @@ void show_mem(void)
 	printk(KERN_INFO "Mem-info:\n");
 	show_free_areas();
 	printk(KERN_INFO "Free swap:	 %6dkB\n",nr_swap_pages<<(PAGE_SHIFT-10));
+#ifndef CONFIG_DISCONTIGMEM
 	i = max_mapnr;
 	while (i-- > 0) {
 		total++;
@@ -497,10 +549,50 @@ void show_mem(void)
 		else
 			shared += page_count(&mem_map[i]) - 1;
 	}
+#else
+	for (i = 0; i < npmem_ranges; i++) {
+		int j;
+
+		for (j = node_start_pfn(i); j < node_end_pfn(i); j++) {
+			struct page *p;
+
+			p = node_mem_map(i) + j - node_start_pfn(i);
+
+			total++;
+			if (PageReserved(p))
+				reserved++;
+			else if (PageSwapCache(p))
+				cached++;
+			else if (!page_count(p))
+				free++;
+			else
+				shared += page_count(p) - 1;
+        	}
+	}
+#endif
 	printk(KERN_INFO "%d pages of RAM\n", total);
 	printk(KERN_INFO "%d reserved pages\n", reserved);
 	printk(KERN_INFO "%d pages shared\n", shared);
 	printk(KERN_INFO "%d pages swap cached\n", cached);
+
+
+#ifdef CONFIG_DISCONTIGMEM
+	{
+		struct zonelist *zl;
+		int i, j, k;
+
+		for (i = 0; i < npmem_ranges; i++) {
+			for (j = 0; j < MAX_NR_ZONES; j++) {
+				zl = NODE_DATA(i)->node_zonelists + j;
+
+				printk("Zone list for zone %d on node %d: ", j, i);
+				for (k = 0; zl->zones[k] != NULL; k++) 
+					printk("[%d/%s] ", zl->zones[k]->zone_pgdat->node_id, zl->zones[k]->name);
+				printk("\n");
+			}
+		}
+	}
+#endif
 }
 
 
@@ -757,61 +849,30 @@ void __init paging_init(void)
 	flush_tlb_all_local();
 
 	for (i = 0; i < npmem_ranges; i++) {
-		unsigned long zones_size[MAX_NR_ZONES] = { 0, 0, 0, };
-
-		zones_size[ZONE_DMA] = pmem_ranges[i].pages;
-		free_area_init_node(i,NODE_DATA(i),NULL,zones_size,
-				(pmem_ranges[i].start_pfn << PAGE_SHIFT),0);
-	}
-
-#ifdef CONFIG_DISCONTIGMEM
-	/*
-	 * Initialize support for virt_to_page() macro.
-	 *
-	 * Note that MAX_ADDRESS is the largest virtual address that
-	 * we can map. However, since we map all physical memory into
-	 * the kernel address space, it also has an effect on the maximum
-	 * physical address we can map (MAX_ADDRESS - PAGE_OFFSET).
-	 */
+		unsigned long zones_size[MAX_NR_ZONES] = { 0, 0, 0 };
 
-	maxchunkmap = MAX_ADDRESS >> CHUNKSHIFT;
-	chunkmap = (unsigned char *)alloc_bootmem(maxchunkmap);
+		/* We have an IOMMU, so all memory can go into a single
+		   ZONE_DMA zone. */
 
-	for (i = 0; i < maxchunkmap; i++)
-	    chunkmap[i] = BADCHUNK;
+		if (!i)
+			zones_size[ZONE_DMA] = pmem_ranges[i].pages;
+		else
+			zones_size[ZONE_NORMAL] = pmem_ranges[i].pages;
 
-	for (i = 0; i < npmem_ranges; i++) {
+		free_area_init_node(i,NODE_DATA(i),NULL,zones_size,
+				pmem_ranges[i].start_pfn, 0);
 
-		ADJ_NODE_MEM_MAP(i) = NODE_MEM_MAP(i) - pmem_ranges[i].start_pfn;
+#ifdef CONFIG_DISCONTIGMEM
 		{
-			unsigned long chunk_paddr;
-			unsigned long end_paddr;
-			int chunknum;
-
-			chunk_paddr = (pmem_ranges[i].start_pfn << PAGE_SHIFT);
-			end_paddr = chunk_paddr + (pmem_ranges[i].pages << PAGE_SHIFT);
-			chunk_paddr &= CHUNKMASK;
-
-			chunknum = (int)CHUNKNUM(chunk_paddr);
-			while (chunk_paddr < end_paddr) {
-				if (chunknum >= maxchunkmap)
-					goto badchunkmap1;
-				if (chunkmap[chunknum] != BADCHUNK)
-					goto badchunkmap2;
-				chunkmap[chunknum] = (unsigned char)i;
-				chunk_paddr += CHUNKSZ;
-				chunknum++;
-			}
+		    int j;
+		    for (j = (node_start_pfn(i) >> PFNNID_SHIFT);
+			 j < (node_end_pfn(i) >> PFNNID_SHIFT);
+			 j++) {
+			pfnnid_map[j] = i;
+		    }
 		}
-	}
-
-	return;
-
-badchunkmap1:
-	panic("paging_init: Physical address exceeds maximum address space!\n");
-badchunkmap2:
-	panic("paging_init: Collision in chunk map array. CHUNKSZ needs to be smaller\n");
 #endif
+	}
 }
 
 #ifdef CONFIG_PA20
Index: fs/bio.c
===================================================================
RCS file: /var/cvs/linux-2.6/fs/bio.c,v
retrieving revision 1.9
diff -u -p -r1.9 bio.c
--- fs/bio.c	23 May 2004 23:52:39 -0000	1.9
+++ fs/bio.c	3 Jul 2004 06:55:49 -0000
@@ -345,8 +345,8 @@ static int __bio_add_page(request_queue_
 	}
 
 	/* If we may be able to merge these biovecs, force a recount */
-	if(BIOVEC_PHYS_MERGEABLE(bvec-1, bvec) ||
-	   BIOVEC_VIRT_MERGEABLE(bvec-1, bvec))
+	if (bio->bi_vcnt && (BIOVEC_PHYS_MERGEABLE(bvec-1, bvec) ||
+	    BIOVEC_VIRT_MERGEABLE(bvec-1, bvec)))
 		bio->bi_flags &= ~(1 << BIO_SEG_VALID);
 
 	bio->bi_vcnt++;
Index: include/asm-parisc/io.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/io.h,v
retrieving revision 1.7
diff -u -p -r1.7 io.h
--- include/asm-parisc/io.h	10 Mar 2004 19:24:49 -0000	1.7
+++ include/asm-parisc/io.h	3 Jul 2004 06:55:49 -0000
@@ -24,11 +24,6 @@ extern unsigned long parisc_vmerge_max_s
 #define virt_to_bus virt_to_phys
 #define bus_to_virt phys_to_virt
 
-/*
- * Change "struct page" to physical address.
- */
-#define page_to_phys(page)	((page - mem_map) << PAGE_SHIFT)
-
 /* Memory mapped IO */
 
 extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
Index: include/asm-parisc/mmzone.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/mmzone.h,v
retrieving revision 1.1
diff -u -p -r1.1 mmzone.h
--- include/asm-parisc/mmzone.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/mmzone.h	6 Jul 2004 03:24:57 -0000
@@ -1,31 +1,89 @@
 #ifndef _PARISC_MMZONE_H
 #define _PARISC_MMZONE_H
 
+#ifdef CONFIG_DISCONTIGMEM
+
+#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
+extern int npmem_ranges;
+
 struct node_map_data {
     pg_data_t pg_data;
-    struct page *adj_node_mem_map;
 };
 
 extern struct node_map_data node_data[];
-extern unsigned char *chunkmap;
-
-#define BADCHUNK                ((unsigned char)0xff)
-#define CHUNKSZ                 (256*1024*1024)
-#define CHUNKSHIFT              28
-#define CHUNKMASK               (~(CHUNKSZ - 1))
-#define CHUNKNUM(paddr)         ((paddr) >> CHUNKSHIFT)
 
 #define NODE_DATA(nid)          (&node_data[nid].pg_data)
-#define NODE_MEM_MAP(nid)       (NODE_DATA(nid)->node_mem_map)
-#define ADJ_NODE_MEM_MAP(nid)   (node_data[nid].adj_node_mem_map)
-
-#define phys_to_page(paddr) \
-	(ADJ_NODE_MEM_MAP(chunkmap[CHUNKNUM((paddr))]) \
-	+ ((paddr) >> PAGE_SHIFT))
-
-#define virt_to_page(kvaddr) phys_to_page(__pa(kvaddr))
-
-/* This is kind of bogus, need to investigate performance of doing it right */
-#define VALID_PAGE(page)	((page - mem_map) < max_mapnr)
 
-#endif /* !_PARISC_MMZONE_H */
+/*
+ * Given a kernel address, find the home node of the underlying memory.
+ */
+#define kvaddr_to_nid(kaddr)	pfn_to_nid(__pa(kaddr) >> PAGE_SHIFT)
+
+#define node_mem_map(nid)	(NODE_DATA(nid)->node_mem_map)
+#define node_start_pfn(nid)	(NODE_DATA(nid)->node_start_pfn)
+#define node_end_pfn(nid)						\
+({									\
+	pg_data_t *__pgdat = NODE_DATA(nid);				\
+	__pgdat->node_start_pfn + __pgdat->node_spanned_pages;		\
+})
+#define node_localnr(pfn, nid)		((pfn) - node_start_pfn(nid))
+
+#define local_mapnr(kvaddr)						\
+({									\
+	unsigned long __pfn = __pa(kvaddr) >> PAGE_SHIFT;		\
+	(__pfn - node_start_pfn(pfn_to_nid(__pfn)));			\
+})
+
+#define pfn_to_page(pfn)						\
+({									\
+	unsigned long __pfn = (pfn);					\
+	int __node  = pfn_to_nid(__pfn);				\
+	&node_mem_map(__node)[node_localnr(__pfn,__node)];		\
+})
+
+#define page_to_pfn(pg)							\
+({									\
+	struct page *__page = pg;					\
+	struct zone *__zone = page_zone(__page);			\
+	BUG_ON(__zone == NULL);						\
+	(unsigned long)(__page - __zone->zone_mem_map)			\
+		+ __zone->zone_start_pfn;				\
+})
+
+/* We have these possible memory map layouts:
+ * Astro: 0-3.75, 67.75-68, 4-64
+ * zx1: 0-1, 257-260, 4-256
+ * Stretch (N-class): 0-2, 4-32, 34-xxx
+ */
+
+/* Since each 1GB can only belong to one region (node), we can create
+ * an index table for pfn to nid lookup; each entry in pfnnid_map 
+ * represents 1GB, and contains the node that the memory belongs to. */
+
+#define PFNNID_SHIFT (30 - PAGE_SHIFT)
+extern unsigned char pfnnid_map[];
+
+static inline int pfn_to_nid(unsigned long pfn)
+{
+	unsigned int i;
+    unsigned char r;
+    i = pfn >> PFNNID_SHIFT;
+    r = pfnnid_map[i];
+    BUG_ON(r == 0xff);
+
+    return (int)r;
+}
+
+static inline int pfn_valid(int pfn)
+{
+	int nid = pfn_to_nid(pfn);
+
+	if (nid >= 0)
+		return (pfn < node_end_pfn(nid));
+	return 0;
+}
+
+#else /* !CONFIG_DISCONTIGMEM */
+#define MAX_PHYSMEM_RANGES 	1 
+#endif
+#endif /* _PARISC_MMZONE_H */
Index: include/asm-parisc/page.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/page.h,v
retrieving revision 1.9
diff -u -p -r1.9 page.h
--- include/asm-parisc/page.h	5 May 2004 23:02:47 -0000	1.9
+++ include/asm-parisc/page.h	3 Jul 2004 06:55:49 -0000
@@ -83,12 +83,6 @@ extern __inline__ int get_order(unsigned
 	return order;
 }
 
-#ifdef __LP64__
-#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
-#else
-#define MAX_PHYSMEM_RANGES 1 /* First range is only range that fits in 32 bits */
-#endif
-
 typedef struct __physmem_range {
 	unsigned long start_pfn;
 	unsigned long pages;       /* PAGE_SIZE pages */
@@ -144,15 +138,16 @@ extern int npmem_ranges;
 #define __pa(x)			((unsigned long)(x)-PAGE_OFFSET)
 #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
 
+#ifndef CONFIG_DISCONTIGMEM
 #define pfn_to_page(pfn)	(mem_map + (pfn))
 #define page_to_pfn(page)	((unsigned long)((page) - mem_map))
 #define pfn_valid(pfn)		((pfn) < max_mapnr)
+#endif /* CONFIG_DISCONTIGMEM */
+
 #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 
-#ifndef CONFIG_DISCONTIGMEM
-#define virt_to_page(kaddr)     (mem_map + (__pa(kaddr) >> PAGE_SHIFT))
-#define VALID_PAGE(page)	((page - mem_map) < max_mapnr)
-#endif  /* !CONFIG_DISCONTIGMEM */
+#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
+#define virt_to_page(kaddr)     pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
Index: include/asm-parisc/pgtable.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pgtable.h,v
retrieving revision 1.13
diff -u -p -r1.13 pgtable.h
--- include/asm-parisc/pgtable.h	1 Jul 2004 20:24:38 -0000	1.13
+++ include/asm-parisc/pgtable.h	3 Jul 2004 06:55:49 -0000
@@ -353,11 +353,7 @@ extern inline pte_t pte_modify(pte_t pte
 
 #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
 
-#ifdef CONFIG_DISCONTIGMEM
-#define pte_page(x) (phys_to_page(pte_val(x)))
-#else
-#define pte_page(x) (mem_map+(pte_val(x) >> PAGE_SHIFT))
-#endif
+#define pte_page(pte)		(pfn_to_page(pte_pfn(pte)))
 
 #define pmd_page_kernel(pmd)	((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
 
--- include/asm-parisc/numnodes.h	Sat Jul  3 00:55:49 2004
+++ include/asm-parisc/numnodes.h	Sat Jul  3 00:55:49 2004
@@ -0,0 +1,9 @@
+#ifndef _ASM_MAX_NUMNODES_H
+#define _ASM_MAX_NUMNODES_H
+
+#include <linux/config.h>
+
+/* Max 8 Nodes */
+#define NODES_SHIFT	3
+
+#endif /* _ASM_MAX_NUMNODES_H */
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Xref: news.gmane.org gmane.linux.ports.parisc:21783

On Tue, 2004-07-06 at 02:15, Randolph Chung wrote:
> Since we put all memory into ZONE_DMA, the comment is wrong -- ZONE_DMA
> memory can in fact be >4GB. So, either we partition the memory so that
> it adheres to the above constraint, otherwise we will need to redo the
> pgd/pmd layouts a bit. jejb: comments? :) (In fact this will be a
> problem without CONFIG_DISCONTIGMEM if we have a machine that 
> supported >4GB of contiguous memory)

Actually, no, we always planned to stop ZONE_DMA at 4GB for this reason
even if it has an IOMMU (this is a fairly standard risc trick, I
think).  What we're trying to do is to save space in the PGD/PMD pages
by using "short" pointers. if we know that PTE pages are allocated only
in the first 4GB of memory, then we can point to them with only 32 bits
(even on a 64 bit machine).

We could save space by shifting the pointers before dereferencing. 
Since the PTE/PMD pages are page aligned, we don't actually need the
lower 12 bits of the pointer.  Although we currently use those bits for
page flags, all we're really interested in are valid and present bits so
with a bit of shifting, we could make these short pointers address up to
42 bits, which is over the range of even the pa8800's physical memory
capabilities (40 bits).

James


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Hi there,

I've found a way to simulate a keyboard on my 712/80, but not tested yet...
This is a dongle for PS/2:

1o [] o6
2o    o5
3o    o4
Connect 1 - 5 with wire link
Connect 4 - 6 with wire link
Connect 2 - 5 with 220R resistor and LED (cathode to 5)

Does anyone already make something like this? I don't want to crash my
engine...

And don't you know if this kind of dongle are selled somewhere (I prefer
when it's manufacturer than myself) ?

Thanks a lot
-- 
Tout sur les eggdrops
http://www.c-p-f.org
ML @ eggdrop_fr@yahoogroupes.fr


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Subject: Re: [parisc-linux] Booting 712/80 without keyboard
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On Wed, Jul 07, 2004 at 03:05:58PM +0200, CrazyCat wrote:
> Does anyone already make something like this? I don't want to crash my
> engine...
> 
> And don't you know if this kind of dongle are selled somewhere (I prefer
> when it's manufacturer than myself) ?
> 

You don't... actually... need to have something like this. 712 does let
you boot without keyboard, but it's not straight forward, and there's a
chance that if you bugger up the command, you will not be able to fix
it.

It involves booting into the HP-UX ISL, and changing the console path to
serial. If you no longer have an HP-UX ISL, you can find one here
http://cvs.parisc-linux.org/download/checkedout/build-tools/uxbootlf.

Directions can be found by googling for "hp 712 serial console" but
since there's a chance you'll fry your machine, I'll let you do that and
absolve myself of responsibility.

Regards,
-- 
Kyle McMartin
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Re: "Booting 712/80 without keyboard":

http://www.pateam.org/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/conso
les.html#AEN403

Thibaut VARENE
PA/Linux ESIEE Team
http://www.pateam.org/
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> We could save space by shifting the pointers before dereferencing. 
> Since the PTE/PMD pages are page aligned, we don't actually need the
> lower 12 bits of the pointer.  Although we currently use those bits for
> page flags, all we're really interested in are valid and present bits so
> with a bit of shifting, we could make these short pointers address up to
> 42 bits, which is over the range of even the pa8800's physical memory
> capabilities (40 bits).

Thanks for the idea :) After that and a bit more debugging I am now able
to actually allocate all 32GB of memory by userspace applications on the
n4k (I ran 15 copies of a program that allocated 2GB, and wrote one byte
to each page). [1]

The new patch is attached. It shifts the phys address by 8 bits, and
uses 4 bits for flags (only 3 bits are being used now). This gives us
the capability to address 1TB of physical memory, which is probably
sufficient for now (FLW? :)

This needs some more testing on 32-bit... especially Joel's early kernel
crash problem :( but if there are other comments please let me know,
otherwise I will commit this soon (after the crash problem is fixed, of
course). The fault handler is especially rather ugly. Perhaps some asm
experts can help optimize that a bit.

thanks
randolph

[1] Interestingly, but perhaps obviously, when you kill 15 
applications that each have mapped 2GB, it takes quite a long time for
the processes to go away :)
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


Index: arch/parisc/Kconfig
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/Kconfig,v
retrieving revision 1.19
diff -u -p -r1.19 Kconfig
--- arch/parisc/Kconfig	1 Jul 2004 18:30:36 -0000	1.19
+++ arch/parisc/Kconfig	3 Jul 2004 06:55:49 -0000
@@ -136,6 +136,15 @@ config SMP
 
 	  If you don't know what to do here, say N.
 
+config DISCONTIGMEM
+	bool "Discontiguous memory support (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	help
+	  Say Y to support efficient handling of discontiguous physical memory,
+	  for architectures which are either NUMA (Non-Uniform Memory Access)
+	  or have huge holes in the physical address space for other reasons.
+	  See <file:Documentation/vm/numa> for more.
+
 config PREEMPT
 	bool
 #	bool "Preemptible Kernel"
Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/cache.c,v
retrieving revision 1.17
diff -u -p -r1.17 cache.c
--- arch/parisc/kernel/cache.c	30 May 2004 18:57:23 -0000	1.17
+++ arch/parisc/kernel/cache.c	3 Jul 2004 06:55:49 -0000
@@ -69,7 +69,7 @@ update_mmu_cache(struct vm_area_struct *
 {
 	struct page *page = pte_page(pte);
 
-	if (VALID_PAGE(page) && page_mapping(page) &&
+	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
 	    test_bit(PG_dcache_dirty, &page->flags)) {
 
 		flush_kernel_dcache_page(page_address(page));
Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/entry.S,v
retrieving revision 1.14
diff -u -p -r1.14 entry.S
--- arch/parisc/kernel/entry.S	2 May 2004 16:16:01 -0000	1.14
+++ arch/parisc/kernel/entry.S	9 Jul 2004 07:46:24 -0000
@@ -455,20 +455,28 @@
 	/* Look up a PTE in a 2-Level scheme (faulting at each
 	 * level if the entry isn't present 
 	 *
-	 * NOTE: we use ldw even for LP64 because our pte
-	 * and pmd are allocated <4GB */
+	 * NOTE: we use ldw even for LP64, since the short pointers
+	 * can address up to 1TB
+	 */
 	.macro		L2_ptep	pmd,pte,index,va,fault
 #if PT_NLEVELS == 3
 	EXTR		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
 #else
 	EXTR		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 #endif
-	DEP		%r0,31,PAGE_SHIFT,\pmd	/* clear offset */
+	DEP             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	copy		%r0,\pte
 	ldw,s		\index(\pmd),\pmd
+	bb,>=,n		\pmd,_PxD_PRESENT_BIT,\fault
+	DEP		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
+	copy		\pmd,%r9
+#ifdef __LP64__
+	shld		%r9,PxD_VALUE_SHIFT,\pmd
+#else
+	shlw		%r9,PxD_VALUE_SHIFT,\pmd
+#endif
 	EXTR		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
-	bb,>=,n		\pmd,_PAGE_PRESENT_BIT,\fault
-	DEP		%r0,31,PAGE_SHIFT,\pmd	/* clear offset */
+	DEP		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
 	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
 	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
@@ -489,10 +497,16 @@
 	copy		%r0,\pte
 	extrd,u,*=	\va,31,32,%r0
 	ldw,s		\index(\pgd),\pgd
+	extrd,u,*=	\va,31,32,%r0
+	bb,>=,n		\pgd,_PxD_PRESENT_BIT,\fault
+	extrd,u,*=	\va,31,32,%r0
+	depd		%r0,63,PxD_FLAG_SHIFT,\pgd
+	extrd,u,*=	\va,31,32,%r0
+	shld		\pgd,PxD_VALUE_SHIFT,\index
+	extrd,u,*=	\va,31,32,%r0
+	copy		\index,\pgd
 	extrd,u,*<>	\va,31,32,%r0
 	ldo		ASM_PGD_PMD_OFFSET(\pgd),\pgd
-	extrd,u,*=	\va,31,32,%r0
-	bb,>=,n		\pgd,_PAGE_PRESENT_BIT,\fault
 	L2_ptep		\pgd,\pte,\index,\va,\fault
 	.endm
 
Index: arch/parisc/kernel/head.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head.S,v
retrieving revision 1.6
diff -u -p -r1.6 head.S
--- arch/parisc/kernel/head.S	8 May 2004 14:12:45 -0000	1.6
+++ arch/parisc/kernel/head.S	9 Jul 2004 07:44:31 -0000
@@ -76,7 +76,8 @@ $bss_loop:
 	/* Initialize startup VM. Just map first 8 MB of memory */
 	ldil		L%PA(pg0),%r1
 	ldo		R%PA(pg0)(%r1),%r1
-	ldo		_PAGE_TABLE(%r1),%r3
+	shr		%r1,PxD_VALUE_SHIFT,%r3
+	ldo		(PxD_FLAG_PRESENT+PxD_FLAG_VALID)(%r3),%r3
 
 	ldil		L%PA(swapper_pg_dir),%r4
 	ldo		R%PA(swapper_pg_dir)(%r4),%r4
@@ -86,7 +87,7 @@ $bss_loop:
 	ldo		ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4),%r4
 1:
 	stw             %r3,0(%r4)
-	ldo		ASM_PAGE_SIZE(%r3),%r3
+	ldo		(ASM_PAGE_SIZE >> PxD_VALUE_SHIFT)(%r3),%r3
 	addib,>		-1,%r1,1b
 	ldo		ASM_PGD_ENTRY_SIZE(%r4),%r4
 
Index: arch/parisc/kernel/head64.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head64.S,v
retrieving revision 1.9
diff -u -p -r1.9 head64.S
--- arch/parisc/kernel/head64.S	8 May 2004 14:12:45 -0000	1.9
+++ arch/parisc/kernel/head64.S	7 Jul 2004 05:41:57 -0000
@@ -80,7 +80,8 @@ $bss_loop:
 
 	ldil		L%PA(pmd0),%r5
 	ldo		R%PA(pmd0)(%r5),%r5
-	ldo		_PAGE_TABLE(%r5),%r3
+	shrd		%r5,PxD_VALUE_SHIFT,%r3
+	ldo		(PxD_FLAG_PRESENT+PxD_FLAG_VALID)(%r3),%r3
 
 	ldil		L%PA(swapper_pg_dir),%r4
 	ldo		R%PA(swapper_pg_dir)(%r4),%r4
@@ -90,16 +91,17 @@ $bss_loop:
 
 	stw             %r3,ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4)
 
-	ldo		_PAGE_TABLE(%r1),%r3
+	shrd		%r1,PxD_VALUE_SHIFT,%r3
+	ldo		(PxD_FLAG_PRESENT+PxD_FLAG_VALID)(%r3),%r3
 	ldo		ASM_PMD_ENTRY*ASM_PMD_ENTRY_SIZE(%r5),%r5
 	ldi		ASM_PT_INITIAL,%r1
 1:
 	stw		%r3,0(%r5)
-	ldo		ASM_PAGE_SIZE(%r3),%r3
+	ldo		(ASM_PAGE_SIZE >> PxD_VALUE_SHIFT)(%r3),%r3
 	addib,>		-1,%r1,1b
 	ldo		ASM_PMD_ENTRY_SIZE(%r5),%r5
 
-	ldo		_PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
+	ldo             _PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
 	ldil		L%PA(pg0),%r1
 	ldo		R%PA(pg0)(%r1),%r1
 
Index: arch/parisc/kernel/inventory.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/inventory.c,v
retrieving revision 1.5
diff -u -p -r1.5 inventory.c
--- arch/parisc/kernel/inventory.c	4 Jun 2004 19:36:53 -0000	1.5
+++ arch/parisc/kernel/inventory.c	4 Jul 2004 17:46:52 -0000
@@ -25,6 +25,7 @@
 #include <linux/mm.h>
 #include <asm/hardware.h>
 #include <asm/io.h>
+#include <asm/mmzone.h>
 #include <asm/pdc.h>
 #include <asm/pdcpat.h>
 #include <asm/processor.h>
Index: arch/parisc/kernel/parisc_ksyms.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/parisc_ksyms.c,v
retrieving revision 1.16
diff -u -p -r1.16 parisc_ksyms.c
--- arch/parisc/kernel/parisc_ksyms.c	6 Mar 2004 14:43:46 -0000	1.16
+++ arch/parisc/kernel/parisc_ksyms.c	5 Jul 2004 21:53:23 -0000
@@ -173,3 +173,9 @@ EXPORT_SYMBOL(__moddi3);
 extern void $$dyncall(void);
 EXPORT_SYMBOL($$dyncall);
 #endif
+
+#ifdef CONFIG_DISCONTIGMEM
+#include <asm/mmzone.h>
+EXPORT_SYMBOL(node_data);
+EXPORT_SYMBOL(pfnnid_map);
+#endif
Index: arch/parisc/kernel/pdc_cons.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/pdc_cons.c,v
retrieving revision 1.6
diff -u -p -r1.6 pdc_cons.c
--- arch/parisc/kernel/pdc_cons.c	19 Jan 2004 05:15:47 -0000	1.6
+++ arch/parisc/kernel/pdc_cons.c	7 Jul 2004 01:38:17 -0000
@@ -41,7 +41,7 @@
 
 /* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems. 
  * On production kernels EARLY_BOOTUP_DEBUG should be undefined. */
-#undef EARLY_BOOTUP_DEBUG
+#define EARLY_BOOTUP_DEBUG 1
 
 
 #include <linux/config.h>
Index: arch/parisc/mm/init.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/mm/init.c,v
retrieving revision 1.6
diff -u -p -r1.6 init.c
--- arch/parisc/mm/init.c	24 May 2004 00:58:49 -0000	1.6
+++ arch/parisc/mm/init.c	9 Jul 2004 07:36:34 -0000
@@ -5,6 +5,7 @@
  *  Copyright 1999 SuSE GmbH
  *    changed by Philipp Rumpf
  *  Copyright 1999 Philipp Rumpf (prumpf@tux.org)
+ *  Copyright 2004 Randolph Chung (tausq@debian.org)
  *
  */
 
@@ -23,6 +24,7 @@
 #include <asm/pgalloc.h>
 #include <asm/tlb.h>
 #include <asm/pdc_chassis.h>
+#include <asm/mmzone.h>
 
 DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 
@@ -32,10 +34,11 @@ extern char _end;	/* end of BSS, defined
 extern char __init_begin, __init_end;
 
 #ifdef CONFIG_DISCONTIGMEM
-struct node_map_data node_data[MAX_PHYSMEM_RANGES];
-bootmem_data_t bmem_data[MAX_PHYSMEM_RANGES];
-unsigned char *chunkmap;
-unsigned int maxchunkmap;
+struct node_map_data node_data[MAX_NUMNODES];
+bootmem_data_t bmem_data[MAX_NUMNODES];
+
+/* Support up to 512GB of physical address space */
+unsigned char pfnnid_map[512];
 #endif
 
 static struct resource data_resource = {
@@ -119,21 +122,6 @@ static void __init setup_bootmem(void)
 
 	disable_sr_hashing(); /* Turn off space register hashing */
 
-#ifdef CONFIG_DISCONTIGMEM
-	/*
-	 * The below is still true as of 2.4.2. If this is ever fixed,
-	 * we can remove this warning!
-	 */
-
-	printk(KERN_WARNING "\n\n");
-	printk(KERN_WARNING "CONFIG_DISCONTIGMEM is enabled, which is probably a mistake. This\n");
-	printk(KERN_WARNING "option can lead to heavy swapping, even when there are gigabytes\n");
-	printk(KERN_WARNING "of free memory.\n\n");
-#endif
-
-#ifdef __LP64__
-
-#ifndef CONFIG_DISCONTIGMEM
 	/*
 	 * Sort the ranges. Since the number of ranges is typically
 	 * small, and performance is not an issue here, just do
@@ -160,11 +148,10 @@ static void __init setup_bootmem(void)
 		}
 	}
 
+#ifndef CONFIG_DISCONTIGMEM
 	/*
 	 * Throw out ranges that are too far apart (controlled by
-	 * MAX_GAP). If CONFIG_DISCONTIGMEM wasn't implemented so
-	 * poorly, we would recommend enabling that option, but,
-	 * until it is fixed, this is the best way to go.
+	 * MAX_GAP).
 	 */
 
 	for (i = 1; i < npmem_ranges; i++) {
@@ -172,6 +159,11 @@ static void __init setup_bootmem(void)
 			(pmem_ranges[i-1].start_pfn +
 			 pmem_ranges[i-1].pages) > MAX_GAP) {
 			npmem_ranges = i;
+			printk("Large gap in memory detected (%ld pages). "
+			       "Consider turning on CONFIG_DISCONTIGMEM\n",
+			       pmem_ranges[i].start_pfn -
+			       (pmem_ranges[i-1].start_pfn +
+			        pmem_ranges[i-1].pages));
 			break;
 		}
 	}
@@ -194,8 +186,6 @@ static void __init setup_bootmem(void)
 		}
 	}
 
-#endif /* __LP64__ */
-
 	sysram_resource_count = npmem_ranges;
 	for (i = 0; i < sysram_resource_count; i++) {
 		struct resource *res = &sysram_resources[i];
@@ -218,6 +208,7 @@ static void __init setup_bootmem(void)
 	mem_limit_func();       /* check for "mem=" argument */
 
 	mem_max = 0;
+	num_physpages = 0;
 	for (i = 0; i < npmem_ranges; i++) {
 		unsigned long rsize;
 
@@ -232,15 +223,16 @@ static void __init setup_bootmem(void)
 				npmem_ranges = i + 1;
 				mem_max = mem_limit;
 			}
+	        num_physpages += pmem_ranges[i].pages;
 			break;
 		}
+	    num_physpages += pmem_ranges[i].pages;
 		mem_max += rsize;
 	}
 
 	printk(KERN_INFO "Total Memory: %ld Mb\n",mem_max >> 20);
 
 #ifndef CONFIG_DISCONTIGMEM
-
 	/* Merge the ranges, keeping track of the holes */
 
 	{
@@ -272,9 +264,18 @@ static void __init setup_bootmem(void)
 	bootmap_start_pfn = PAGE_ALIGN(__pa((unsigned long) &_end)) >> PAGE_SHIFT;
 
 #ifdef CONFIG_DISCONTIGMEM
+	for (i = 0; i < MAX_PHYSMEM_RANGES; i++) {
+		memset(NODE_DATA(i), 0, sizeof(pg_data_t));
+		NODE_DATA(i)->bdata = &bmem_data[i];
+	}
+	memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
+
+	numnodes = npmem_ranges;
+
 	for (i = 0; i < npmem_ranges; i++)
-		node_data[i].pg_data.bdata = &bmem_data[i];
+		node_set_online(i);
 #endif
+
 	/*
 	 * Initialize and free the full range of memory in each range.
 	 * Note that the only writing these routines do are to the bootmap,
@@ -443,16 +444,20 @@ unsigned long pcxl_dma_start;
 
 void __init mem_init(void)
 {
-	int i;
-
 	high_memory = __va((max_pfn << PAGE_SHIFT));
-	max_mapnr = (virt_to_page(high_memory - 1) - mem_map) + 1;
 
-	num_physpages = 0;
-	mem_map = zone_table[0]->zone_mem_map;
-	for (i = 0; i < npmem_ranges; i++)
-		num_physpages += free_all_bootmem_node(NODE_DATA(i));
-	totalram_pages = num_physpages;
+#ifndef CONFIG_DISCONTIGMEM
+	max_mapnr = page_to_pfn(virt_to_page(high_memory - 1)) + 1;
+	mem_map = zone_table[ZONE_DMA]->zone_mem_map;
+	totalram_pages += free_all_bootmem();
+#else
+	{
+		int i;
+
+		for (i = 0; i < npmem_ranges; i++)
+			totalram_pages += free_all_bootmem_node(NODE_DATA(i));
+	}
+#endif
 
 	printk(KERN_INFO "Memory: %luk available\n", num_physpages << (PAGE_SHIFT-10));
 
@@ -485,6 +490,7 @@ void show_mem(void)
 	printk(KERN_INFO "Mem-info:\n");
 	show_free_areas();
 	printk(KERN_INFO "Free swap:	 %6dkB\n",nr_swap_pages<<(PAGE_SHIFT-10));
+#ifndef CONFIG_DISCONTIGMEM
 	i = max_mapnr;
 	while (i-- > 0) {
 		total++;
@@ -497,10 +503,50 @@ void show_mem(void)
 		else
 			shared += page_count(&mem_map[i]) - 1;
 	}
+#else
+	for (i = 0; i < npmem_ranges; i++) {
+		int j;
+
+		for (j = node_start_pfn(i); j < node_end_pfn(i); j++) {
+			struct page *p;
+
+			p = node_mem_map(i) + j - node_start_pfn(i);
+
+			total++;
+			if (PageReserved(p))
+				reserved++;
+			else if (PageSwapCache(p))
+				cached++;
+			else if (!page_count(p))
+				free++;
+			else
+				shared += page_count(p) - 1;
+        	}
+	}
+#endif
 	printk(KERN_INFO "%d pages of RAM\n", total);
 	printk(KERN_INFO "%d reserved pages\n", reserved);
 	printk(KERN_INFO "%d pages shared\n", shared);
 	printk(KERN_INFO "%d pages swap cached\n", cached);
+
+
+#ifdef CONFIG_DISCONTIGMEM
+	{
+		struct zonelist *zl;
+		int i, j, k;
+
+		for (i = 0; i < npmem_ranges; i++) {
+			for (j = 0; j < MAX_NR_ZONES; j++) {
+				zl = NODE_DATA(i)->node_zonelists + j;
+
+				printk("Zone list for zone %d on node %d: ", j, i);
+				for (k = 0; zl->zones[k] != NULL; k++) 
+					printk("[%d/%s] ", zl->zones[k]->zone_pgdat->node_id, zl->zones[k]->name);
+				printk("\n");
+			}
+		}
+	}
+#endif
 }
 
 
@@ -543,7 +589,7 @@ static void __init map_pages(unsigned lo
 #if PTRS_PER_PMD == 1
 		pmd = (pmd_t *)__pa(pg_dir);
 #else
-		pmd = (pmd_t *) (PAGE_MASK & pgd_val(*pg_dir));
+		pmd = (pmd_t *)pgd_address(*pg_dir);
 
 		/*
 		 * pmd is physical at this point
@@ -554,7 +600,7 @@ static void __init map_pages(unsigned lo
 			pmd = (pmd_t *) __pa(pmd);
 		}
 
-		pgd_val(*pg_dir) = _PAGE_TABLE | (unsigned long) pmd;
+		pgd_populate(NULL, pg_dir, __va(pmd));
 #endif
 		pg_dir++;
 
@@ -567,15 +613,14 @@ static void __init map_pages(unsigned lo
 			 * pg_table is physical at this point
 			 */
 
-			pg_table = (pte_t *) (PAGE_MASK & pmd_val(*pmd));
+			pg_table = (pte_t *)pmd_address(*pmd);
 			if (!pg_table) {
 				pg_table = (pte_t *)
 					alloc_bootmem_low_pages_node(NODE_DATA(0),PAGE_SIZE);
 				pg_table = (pte_t *) __pa(pg_table);
 			}
 
-			pmd_val(*pmd) = _PAGE_TABLE |
-					   (unsigned long) pg_table;
+			pmd_populate_kernel(NULL, pmd, __va(pg_table));
 
 			/* now change pg_table to kernel virtual addresses */
 
@@ -757,61 +802,26 @@ void __init paging_init(void)
 	flush_tlb_all_local();
 
 	for (i = 0; i < npmem_ranges; i++) {
-		unsigned long zones_size[MAX_NR_ZONES] = { 0, 0, 0, };
+		unsigned long zones_size[MAX_NR_ZONES] = { 0, 0, 0 };
 
+		/* We have an IOMMU, so all memory can go into a single
+		   ZONE_DMA zone. */
 		zones_size[ZONE_DMA] = pmem_ranges[i].pages;
+
 		free_area_init_node(i,NODE_DATA(i),NULL,zones_size,
-				(pmem_ranges[i].start_pfn << PAGE_SHIFT),0);
-	}
+				pmem_ranges[i].start_pfn, 0);
 
 #ifdef CONFIG_DISCONTIGMEM
-	/*
-	 * Initialize support for virt_to_page() macro.
-	 *
-	 * Note that MAX_ADDRESS is the largest virtual address that
-	 * we can map. However, since we map all physical memory into
-	 * the kernel address space, it also has an effect on the maximum
-	 * physical address we can map (MAX_ADDRESS - PAGE_OFFSET).
-	 */
-
-	maxchunkmap = MAX_ADDRESS >> CHUNKSHIFT;
-	chunkmap = (unsigned char *)alloc_bootmem(maxchunkmap);
-
-	for (i = 0; i < maxchunkmap; i++)
-	    chunkmap[i] = BADCHUNK;
-
-	for (i = 0; i < npmem_ranges; i++) {
-
-		ADJ_NODE_MEM_MAP(i) = NODE_MEM_MAP(i) - pmem_ranges[i].start_pfn;
 		{
-			unsigned long chunk_paddr;
-			unsigned long end_paddr;
-			int chunknum;
-
-			chunk_paddr = (pmem_ranges[i].start_pfn << PAGE_SHIFT);
-			end_paddr = chunk_paddr + (pmem_ranges[i].pages << PAGE_SHIFT);
-			chunk_paddr &= CHUNKMASK;
-
-			chunknum = (int)CHUNKNUM(chunk_paddr);
-			while (chunk_paddr < end_paddr) {
-				if (chunknum >= maxchunkmap)
-					goto badchunkmap1;
-				if (chunkmap[chunknum] != BADCHUNK)
-					goto badchunkmap2;
-				chunkmap[chunknum] = (unsigned char)i;
-				chunk_paddr += CHUNKSZ;
-				chunknum++;
-			}
+		    int j;
+		    for (j = (node_start_pfn(i) >> PFNNID_SHIFT);
+			 j < (node_end_pfn(i) >> PFNNID_SHIFT);
+			 j++) {
+			pfnnid_map[j] = i;
+		    }
 		}
-	}
-
-	return;
-
-badchunkmap1:
-	panic("paging_init: Physical address exceeds maximum address space!\n");
-badchunkmap2:
-	panic("paging_init: Collision in chunk map array. CHUNKSZ needs to be smaller\n");
 #endif
+	}
 }
 
 #ifdef CONFIG_PA20
Index: fs/bio.c
===================================================================
RCS file: /var/cvs/linux-2.6/fs/bio.c,v
retrieving revision 1.9
diff -u -p -r1.9 bio.c
--- fs/bio.c	23 May 2004 23:52:39 -0000	1.9
+++ fs/bio.c	3 Jul 2004 06:55:49 -0000
@@ -345,8 +345,8 @@ static int __bio_add_page(request_queue_
 	}
 
 	/* If we may be able to merge these biovecs, force a recount */
-	if(BIOVEC_PHYS_MERGEABLE(bvec-1, bvec) ||
-	   BIOVEC_VIRT_MERGEABLE(bvec-1, bvec))
+	if (bio->bi_vcnt && (BIOVEC_PHYS_MERGEABLE(bvec-1, bvec) ||
+	    BIOVEC_VIRT_MERGEABLE(bvec-1, bvec)))
 		bio->bi_flags &= ~(1 << BIO_SEG_VALID);
 
 	bio->bi_vcnt++;
Index: include/asm-parisc/assembly.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/assembly.h,v
retrieving revision 1.1
diff -u -p -r1.1 assembly.h
--- include/asm-parisc/assembly.h	29 Jul 2003 17:02:03 -0000	1.1
+++ include/asm-parisc/assembly.h	7 Jul 2004 04:53:16 -0000
@@ -110,6 +110,16 @@
 	depd,z	\r, 63-\sa, 64-\sa, \t
 	.endm
 
+	/* Shift Right - note the r and t can NOT be the same! */
+	.macro shr r, sa, t
+	extru \r, 31-\sa, 32-\sa, \t
+	.endm
+
+	/* pa20w version of shift right */
+	.macro shrd r, sa, t
+	extrd,u \r, 63-\sa, 64-\sa, \t
+	.endm
+
 	/* load 32-bit 'value' into 'reg' compensating for the ldil
 	 * sign-extension when running in wide mode.
 	 * WARNING!! neither 'value' nor 'reg' can be expressions
Index: include/asm-parisc/io.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/io.h,v
retrieving revision 1.7
diff -u -p -r1.7 io.h
--- include/asm-parisc/io.h	10 Mar 2004 19:24:49 -0000	1.7
+++ include/asm-parisc/io.h	3 Jul 2004 06:55:49 -0000
@@ -24,11 +24,6 @@ extern unsigned long parisc_vmerge_max_s
 #define virt_to_bus virt_to_phys
 #define bus_to_virt phys_to_virt
 
-/*
- * Change "struct page" to physical address.
- */
-#define page_to_phys(page)	((page - mem_map) << PAGE_SHIFT)
-
 /* Memory mapped IO */
 
 extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
Index: include/asm-parisc/mmzone.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/mmzone.h,v
retrieving revision 1.1
diff -u -p -r1.1 mmzone.h
--- include/asm-parisc/mmzone.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/mmzone.h	6 Jul 2004 03:24:57 -0000
@@ -1,31 +1,89 @@
 #ifndef _PARISC_MMZONE_H
 #define _PARISC_MMZONE_H
 
+#ifdef CONFIG_DISCONTIGMEM
+
+#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
+extern int npmem_ranges;
+
 struct node_map_data {
     pg_data_t pg_data;
-    struct page *adj_node_mem_map;
 };
 
 extern struct node_map_data node_data[];
-extern unsigned char *chunkmap;
-
-#define BADCHUNK                ((unsigned char)0xff)
-#define CHUNKSZ                 (256*1024*1024)
-#define CHUNKSHIFT              28
-#define CHUNKMASK               (~(CHUNKSZ - 1))
-#define CHUNKNUM(paddr)         ((paddr) >> CHUNKSHIFT)
 
 #define NODE_DATA(nid)          (&node_data[nid].pg_data)
-#define NODE_MEM_MAP(nid)       (NODE_DATA(nid)->node_mem_map)
-#define ADJ_NODE_MEM_MAP(nid)   (node_data[nid].adj_node_mem_map)
-
-#define phys_to_page(paddr) \
-	(ADJ_NODE_MEM_MAP(chunkmap[CHUNKNUM((paddr))]) \
-	+ ((paddr) >> PAGE_SHIFT))
-
-#define virt_to_page(kvaddr) phys_to_page(__pa(kvaddr))
-
-/* This is kind of bogus, need to investigate performance of doing it right */
-#define VALID_PAGE(page)	((page - mem_map) < max_mapnr)
 
-#endif /* !_PARISC_MMZONE_H */
+/*
+ * Given a kernel address, find the home node of the underlying memory.
+ */
+#define kvaddr_to_nid(kaddr)	pfn_to_nid(__pa(kaddr) >> PAGE_SHIFT)
+
+#define node_mem_map(nid)	(NODE_DATA(nid)->node_mem_map)
+#define node_start_pfn(nid)	(NODE_DATA(nid)->node_start_pfn)
+#define node_end_pfn(nid)						\
+({									\
+	pg_data_t *__pgdat = NODE_DATA(nid);				\
+	__pgdat->node_start_pfn + __pgdat->node_spanned_pages;		\
+})
+#define node_localnr(pfn, nid)		((pfn) - node_start_pfn(nid))
+
+#define local_mapnr(kvaddr)						\
+({									\
+	unsigned long __pfn = __pa(kvaddr) >> PAGE_SHIFT;		\
+	(__pfn - node_start_pfn(pfn_to_nid(__pfn)));			\
+})
+
+#define pfn_to_page(pfn)						\
+({									\
+	unsigned long __pfn = (pfn);					\
+	int __node  = pfn_to_nid(__pfn);				\
+	&node_mem_map(__node)[node_localnr(__pfn,__node)];		\
+})
+
+#define page_to_pfn(pg)							\
+({									\
+	struct page *__page = pg;					\
+	struct zone *__zone = page_zone(__page);			\
+	BUG_ON(__zone == NULL);						\
+	(unsigned long)(__page - __zone->zone_mem_map)			\
+		+ __zone->zone_start_pfn;				\
+})
+
+/* We have these possible memory map layouts:
+ * Astro: 0-3.75, 67.75-68, 4-64
+ * zx1: 0-1, 257-260, 4-256
+ * Stretch (N-class): 0-2, 4-32, 34-xxx
+ */
+
+/* Since each 1GB can only belong to one region (node), we can create
+ * an index table for pfn to nid lookup; each entry in pfnnid_map 
+ * represents 1GB, and contains the node that the memory belongs to. */
+
+#define PFNNID_SHIFT (30 - PAGE_SHIFT)
+extern unsigned char pfnnid_map[];
+
+static inline int pfn_to_nid(unsigned long pfn)
+{
+	unsigned int i;
+    unsigned char r;
+    i = pfn >> PFNNID_SHIFT;
+    r = pfnnid_map[i];
+    BUG_ON(r == 0xff);
+
+    return (int)r;
+}
+
+static inline int pfn_valid(int pfn)
+{
+	int nid = pfn_to_nid(pfn);
+
+	if (nid >= 0)
+		return (pfn < node_end_pfn(nid));
+	return 0;
+}
+
+#else /* !CONFIG_DISCONTIGMEM */
+#define MAX_PHYSMEM_RANGES 	1 
+#endif
+#endif /* _PARISC_MMZONE_H */
Index: include/asm-parisc/page.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/page.h,v
retrieving revision 1.9
diff -u -p -r1.9 page.h
--- include/asm-parisc/page.h	5 May 2004 23:02:47 -0000	1.9
+++ include/asm-parisc/page.h	9 Jul 2004 04:05:27 -0000
@@ -60,10 +60,15 @@ typedef struct { unsigned long pgprot; }
 #else
 #define pte_flags(x)	((x).flags)
 #endif
-#define pmd_val(x)	((x).pmd)
-#define pgd_val(x)	((x).pgd)
+
+/* These do not work lvalues, so make sure we don't use them as such. */
+#define pmd_val(x)	((x).pmd + 0)
+#define pgd_val(x)	((x).pgd + 0)
 #define pgprot_val(x)	((x).pgprot)
 
+#define __pmd_val_set(x,n) (x).pmd = (n)
+#define __pgd_val_set(x,n) (x).pgd = (n)
+
 #define __pte(x)	((pte_t) { (x) } )
 #define __pmd(x)	((pmd_t) { (x) } )
 #define __pgd(x)	((pgd_t) { (x) } )
@@ -83,12 +88,6 @@ extern __inline__ int get_order(unsigned
 	return order;
 }
 
-#ifdef __LP64__
-#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
-#else
-#define MAX_PHYSMEM_RANGES 1 /* First range is only range that fits in 32 bits */
-#endif
-
 typedef struct __physmem_range {
 	unsigned long start_pfn;
 	unsigned long pages;       /* PAGE_SIZE pages */
@@ -144,15 +143,16 @@ extern int npmem_ranges;
 #define __pa(x)			((unsigned long)(x)-PAGE_OFFSET)
 #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
 
+#ifndef CONFIG_DISCONTIGMEM
 #define pfn_to_page(pfn)	(mem_map + (pfn))
 #define page_to_pfn(page)	((unsigned long)((page) - mem_map))
 #define pfn_valid(pfn)		((pfn) < max_mapnr)
+#endif /* CONFIG_DISCONTIGMEM */
+
 #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 
-#ifndef CONFIG_DISCONTIGMEM
-#define virt_to_page(kaddr)     (mem_map + (__pa(kaddr) >> PAGE_SHIFT))
-#define VALID_PAGE(page)	((page - mem_map) < max_mapnr)
-#endif  /* !CONFIG_DISCONTIGMEM */
+#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
+#define virt_to_page(kaddr)     pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
Index: include/asm-parisc/pgalloc.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pgalloc.h,v
retrieving revision 1.5
diff -u -p -r1.5 pgalloc.h
--- include/asm-parisc/pgalloc.h	2 May 2004 16:16:01 -0000	1.5
+++ include/asm-parisc/pgalloc.h	9 Jul 2004 07:51:18 -0000
@@ -21,7 +21,7 @@
  * kernel for machines with under 4GB of memory) */
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-	pgd_t *pgd = (pgd_t *)__get_free_pages(GFP_KERNEL|GFP_DMA,
+	pgd_t *pgd = (pgd_t *)__get_free_pages(GFP_KERNEL,
 					       PGD_ALLOC_ORDER);
 	pgd_t *actual_pgd = pgd;
 
@@ -30,13 +30,15 @@ static inline pgd_t *pgd_alloc(struct mm
 #ifdef __LP64__
 		actual_pgd += PTRS_PER_PGD;
 		/* Populate first pmd with allocated memory.  We mark it
-		 * with _PAGE_GATEWAY as a signal to the system that this
+		 * with PxD_FLAG_ATTACHED as a signal to the system that this
 		 * pmd entry may not be cleared. */
-		pgd_val(*actual_pgd) = (_PAGE_TABLE | _PAGE_GATEWAY) + 
-			(__u32)__pa((unsigned long)pgd);
+		__pgd_val_set(*actual_pgd, (PxD_FLAG_PRESENT | 
+				        PxD_FLAG_VALID | 
+					PxD_FLAG_ATTACHED) 
+			+ (__u32)(__pa((unsigned long)pgd) >> PxD_VALUE_SHIFT));
 		/* The first pmd entry also is marked with _PAGE_GATEWAY as
 		 * a signal that this pmd may not be freed */
-		pgd_val(*pgd) = _PAGE_GATEWAY;
+		__pgd_val_set(*pgd, PxD_FLAG_ATTACHED);
 #endif
 	}
 	return actual_pgd;
@@ -56,14 +58,13 @@ static inline void pgd_free(pgd_t *pgd)
 
 static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
 {
-	pgd_val(*pgd) = _PAGE_TABLE + (__u32)__pa((unsigned long)pmd);
+	__pgd_val_set(*pgd, (PxD_FLAG_PRESENT | PxD_FLAG_VALID) +
+		        (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT));
 }
 
-/* NOTE: pmd must be in ZONE_DMA (<4GB) so the pgd pointer can be
- * housed in 32 bits */
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT|GFP_DMA,
+	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
 					       PMD_ORDER);
 	if (pmd)
 		memset(pmd, 0, PAGE_SIZE<<PMD_ORDER);
@@ -73,7 +74,7 @@ static inline pmd_t *pmd_alloc_one(struc
 static inline void pmd_free(pmd_t *pmd)
 {
 #ifdef __LP64__
-	if(pmd_val(*pmd) & _PAGE_GATEWAY)
+	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
 		/* This is the permanent pmd attached to the pgd;
 		 * cannot free it */
 		return;
@@ -102,23 +103,24 @@ pmd_populate_kernel(struct mm_struct *mm
 #ifdef __LP64__
 	/* preserve the gateway marker if this is the beginning of
 	 * the permanent pmd */
-	if(pmd_val(*pmd) & _PAGE_GATEWAY)
-		pmd_val(*pmd) = (_PAGE_TABLE | _PAGE_GATEWAY)
-			+ (__u32)__pa((unsigned long)pte);
+	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
+		__pmd_val_set(*pmd, (PxD_FLAG_PRESENT |
+				 PxD_FLAG_VALID |
+				 PxD_FLAG_ATTACHED) 
+			+ (__u32)(__pa((unsigned long)pte) >> PxD_VALUE_SHIFT));
 	else
 #endif
-		pmd_val(*pmd) = _PAGE_TABLE + (__u32)__pa((unsigned long)pte);
+		__pmd_val_set(*pmd, (PxD_FLAG_PRESENT | PxD_FLAG_VALID) 
+			+ (__u32)(__pa((unsigned long)pte) >> PxD_VALUE_SHIFT));
 }
 
 #define pmd_populate(mm, pmd, pte_page) \
 	pmd_populate_kernel(mm, pmd, page_address(pte_page))
 
-/* NOTE: pte must be in ZONE_DMA (<4GB) so that the pmd pointer
- * can be housed in 32 bits */
 static inline struct page *
 pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-	struct page *page = alloc_page(GFP_KERNEL|__GFP_REPEAT|GFP_DMA);
+	struct page *page = alloc_page(GFP_KERNEL|__GFP_REPEAT);
 	if (likely(page != NULL))
 		clear_page(page_address(page));
 	return page;
@@ -127,7 +129,7 @@ pte_alloc_one(struct mm_struct *mm, unsi
 static inline pte_t *
 pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 {
-	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|GFP_DMA);
+	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT);
 	if (likely(pte != NULL))
 		clear_page(pte);
 	return pte;
Index: include/asm-parisc/pgtable.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pgtable.h,v
retrieving revision 1.13
diff -u -p -r1.13 pgtable.h
--- include/asm-parisc/pgtable.h	1 Jul 2004 20:24:38 -0000	1.13
+++ include/asm-parisc/pgtable.h	7 Jul 2004 04:06:30 -0000
@@ -177,6 +177,21 @@ extern  void *vmalloc_start;
 #define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
 #define _PAGE_KERNEL	(_PAGE_PRESENT | _PAGE_EXEC | _PAGE_READ | _PAGE_WRITE | _PAGE_DIRTY | _PAGE_ACCESSED)
 
+/* The pgd/pmd contains a ptr (in phys addr space); since all pgds/pmds
+ * are page-aligned, we don't care about the PAGE_OFFSET bits, except
+ * for a few meta-information bits, so we shift the address to be
+ * able to effectively address 40-bits of physical address space. */
+#define _PxD_PRESENT_BIT   31
+#define _PxD_ATTACHED_BIT  30
+#define _PxD_VALID_BIT     29
+
+#define PxD_FLAG_PRESENT  (1 << xlate_pabit(_PxD_PRESENT_BIT))
+#define PxD_FLAG_ATTACHED (1 << xlate_pabit(_PxD_ATTACHED_BIT))
+#define PxD_FLAG_VALID    (1 << xlate_pabit(_PxD_VALID_BIT))
+#define PxD_FLAG_MASK     (0xf)
+#define PxD_FLAG_SHIFT    (4)
+#define PxD_VALUE_SHIFT   (8)
+
 #ifndef __ASSEMBLY__
 
 #define PAGE_NONE	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
@@ -244,49 +259,49 @@ extern unsigned long *empty_zero_page;
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
 #define pte_clear(xp)	do { pte_val(*(xp)) = 0; } while (0)
 
+#define pmd_flag(x)	(pmd_val(x) & PxD_FLAG_MASK)
+#define pmd_address(x)	((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
+#define pgd_flag(x)	(pgd_val(x) & PxD_FLAG_MASK)
+#define pgd_address(x)	((unsigned long)(pgd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
+
 #ifdef __LP64__
 /* The first entry of the permanent pmd is not there if it contains
  * the gateway marker */
-#define pmd_none(x)	(!pmd_val(x) || pmd_val(x) == _PAGE_GATEWAY)
-#define pmd_bad(x)	((pmd_val(x) & ~PAGE_MASK) != _PAGE_TABLE && (pmd_val(x) & ~PAGE_MASK) != (_PAGE_TABLE | _PAGE_GATEWAY))
+#define pmd_none(x)	(!pmd_val(x) || pmd_flag(x) == PxD_FLAG_ATTACHED)
 #else
 #define pmd_none(x)	(!pmd_val(x))
-#define pmd_bad(x)	((pmd_val(x) & ~PAGE_MASK) != _PAGE_TABLE)
 #endif
-#define pmd_present(x)	(pmd_val(x) & _PAGE_PRESENT)
+#define pmd_bad(x)	(!(pmd_flag(x) & PxD_FLAG_VALID))
+#define pmd_present(x)	(pmd_flag(x) & PxD_FLAG_PRESENT)
 static inline void pmd_clear(pmd_t *pmd) {
 #ifdef __LP64__
-	if(pmd_val(*pmd) & _PAGE_GATEWAY)
+	if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
 		/* This is the entry pointing to the permanent pmd
 		 * attached to the pgd; cannot clear it */
-		pmd_val(*pmd) = _PAGE_GATEWAY;
+		__pmd_val_set(*pmd, PxD_FLAG_ATTACHED);
 	else
 #endif
-		pmd_val(*pmd) = 0;
+		__pmd_val_set(*pmd,  0);
 }
 
 
 
 #if PT_NLEVELS == 3
-#define pgd_page(pgd) ((unsigned long) __va(pgd_val(pgd) & PAGE_MASK))
+#define pgd_page(pgd) ((unsigned long) __va(pgd_address(pgd)))
 
 /* For 64 bit we have three level tables */
 
 #define pgd_none(x)     (!pgd_val(x))
-#ifdef __LP64__
-#define pgd_bad(x)      ((pgd_val(x) & ~PAGE_MASK) != _PAGE_TABLE && (pgd_val(x) & ~PAGE_MASK) != (_PAGE_TABLE | _PAGE_GATEWAY))
-#else
-#define pgd_bad(x)      ((pgd_val(x) & ~PAGE_MASK) != _PAGE_TABLE)
-#endif
-#define pgd_present(x)  (pgd_val(x) & _PAGE_PRESENT)
+#define pgd_bad(x)      (!(pgd_flag(x) & PxD_FLAG_VALID))
+#define pgd_present(x)  (pgd_flag(x) & PxD_FLAG_PRESENT)
 static inline void pgd_clear(pgd_t *pgd) {
 #ifdef __LP64__
-	if(pgd_val(*pgd) & _PAGE_GATEWAY)
+	if(pgd_flag(*pgd) & PxD_FLAG_ATTACHED)
 		/* This is the permanent pmd attached to the pgd; cannot
 		 * free it */
 		return;
 #endif
-	pgd_val(*pgd) = 0;
+	__pgd_val_set(*pgd, 0);
 }
 #else
 /*
@@ -353,15 +368,11 @@ extern inline pte_t pte_modify(pte_t pte
 
 #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
 
-#ifdef CONFIG_DISCONTIGMEM
-#define pte_page(x) (phys_to_page(pte_val(x)))
-#else
-#define pte_page(x) (mem_map+(pte_val(x) >> PAGE_SHIFT))
-#endif
+#define pte_page(pte)		(pfn_to_page(pte_pfn(pte)))
 
-#define pmd_page_kernel(pmd)	((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
+#define pmd_page_kernel(pmd)	((unsigned long) __va(pmd_address(pmd)))
 
-#define __pmd_page(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
+#define __pmd_page(pmd) ((unsigned long) __va(pmd_address(pmd)))
 #define pmd_page(pmd)	virt_to_page((void *)__pmd_page(pmd))
 
 #define pgd_index(address) ((address) >> PGDIR_SHIFT)
--- include/asm-parisc/numnodes.h	Sat Jul  3 00:55:49 2004
+++ include/asm-parisc/numnodes.h	Sat Jul  3 00:55:49 2004
@@ -0,0 +1,9 @@
+#ifndef _ASM_MAX_NUMNODES_H
+#define _ASM_MAX_NUMNODES_H
+
+#include <linux/config.h>
+
+/* Max 8 Nodes */
+#define NODES_SHIFT	3
+
+#endif /* _ASM_MAX_NUMNODES_H */
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Xref: news.gmane.org gmane.linux.ports.parisc:21788

Things are much clearer after some sleep :) This version should fix the
problem with crashes seen on b2k/c3k and CONFIG_DISCONTIGMEM. Also made
a small optimization to the fault handler.

Here are some not-very-scientific measurements of the patch:

c3750 (875MHz), 32-bit kernel, 1.5GB phys mem

with CONFIG_DISCONTIGMEM=y
allocate 1GB memory (1MB at a time), touch every page
./memtest 1024  0.09s user 3.35s system 98% cpu 3.507 total
./memtest 1024  0.11s user 3.37s system 98% cpu 3.522 total
./memtest 1024  0.10s user 3.37s system 98% cpu 3.526 total
./memtest 1024  0.10s user 3.36s system 97% cpu 3.534 total
./memtest 1024  0.08s user 3.38s system 98% cpu 3.525 total

'time make clean vmlinux' on a 2.6 tree:
make clean vmlinux  384.32s user 60.74s system 97% cpu 7:36.75 total

without CONFIG_DISCONTIGMEM=y
./memtest 1024  0.08s user 3.32s system 97% cpu 3.481 total
./memtest 1024  0.11s user 3.32s system 97% cpu 3.509 total
./memtest 1024  0.10s user 3.36s system 98% cpu 3.509 total
./memtest 1024  0.09s user 3.34s system 97% cpu 3.510 total
./memtest 1024  0.11s user 3.33s system 98% cpu 3.504 total

'time make clean vmlinux' on a 2.6 tree:
make clean vmlinux  383.96s user 59.70s system 98% cpu 7:30.89 total

hard to say whether the difference is just regular experimental
variance... but they seem to be quite small (~1%). however the overall 
time for memtest seems to be quite large, compared to other
similar clock-rate systems...

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

Index: arch/parisc/Kconfig
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/Kconfig,v
retrieving revision 1.19
diff -u -p -r1.19 Kconfig
--- arch/parisc/Kconfig	1 Jul 2004 18:30:36 -0000	1.19
+++ arch/parisc/Kconfig	3 Jul 2004 06:55:49 -0000
@@ -136,6 +136,15 @@ config SMP
 
 	  If you don't know what to do here, say N.
 
+config DISCONTIGMEM
+	bool "Discontiguous memory support (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+	help
+	  Say Y to support efficient handling of discontiguous physical memory,
+	  for architectures which are either NUMA (Non-Uniform Memory Access)
+	  or have huge holes in the physical address space for other reasons.
+	  See <file:Documentation/vm/numa> for more.
+
 config PREEMPT
 	bool
 #	bool "Preemptible Kernel"
Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/cache.c,v
retrieving revision 1.17
diff -u -p -r1.17 cache.c
--- arch/parisc/kernel/cache.c	30 May 2004 18:57:23 -0000	1.17
+++ arch/parisc/kernel/cache.c	3 Jul 2004 06:55:49 -0000
@@ -69,7 +69,7 @@ update_mmu_cache(struct vm_area_struct *
 {
 	struct page *page = pte_page(pte);
 
-	if (VALID_PAGE(page) && page_mapping(page) &&
+	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
 	    test_bit(PG_dcache_dirty, &page->flags)) {
 
 		flush_kernel_dcache_page(page_address(page));
Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/entry.S,v
retrieving revision 1.14
diff -u -p -r1.14 entry.S
--- arch/parisc/kernel/entry.S	2 May 2004 16:16:01 -0000	1.14
+++ arch/parisc/kernel/entry.S	9 Jul 2004 16:35:52 -0000
@@ -455,20 +455,28 @@
 	/* Look up a PTE in a 2-Level scheme (faulting at each
 	 * level if the entry isn't present 
 	 *
-	 * NOTE: we use ldw even for LP64 because our pte
-	 * and pmd are allocated <4GB */
+	 * NOTE: we use ldw even for LP64, since the short pointers
+	 * can address up to 1TB
+	 */
 	.macro		L2_ptep	pmd,pte,index,va,fault
 #if PT_NLEVELS == 3
 	EXTR		\va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index
 #else
 	EXTR		\va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
 #endif
-	DEP		%r0,31,PAGE_SHIFT,\pmd	/* clear offset */
+	DEP             %r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	copy		%r0,\pte
 	ldw,s		\index(\pmd),\pmd
+	bb,>=,n		\pmd,_PxD_PRESENT_BIT,\fault
+	DEP		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
+	copy		\pmd,%r9
+#ifdef __LP64__
+	shld		%r9,PxD_VALUE_SHIFT,\pmd
+#else
+	shlw		%r9,PxD_VALUE_SHIFT,\pmd
+#endif
 	EXTR		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
-	bb,>=,n		\pmd,_PAGE_PRESENT_BIT,\fault
-	DEP		%r0,31,PAGE_SHIFT,\pmd	/* clear offset */
+	DEP		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
 	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
 	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
@@ -486,13 +494,16 @@
 	 * under 4GB of memory) */
 	.macro		L3_ptep pgd,pte,index,va,fault
 	extrd,u		\va,63-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
-	copy		%r0,\pte
 	extrd,u,*=	\va,31,32,%r0
 	ldw,s		\index(\pgd),\pgd
+	extrd,u,*=	\va,31,32,%r0
+	bb,>=,n		\pgd,_PxD_PRESENT_BIT,\fault
+	extrd,u,*=	\va,31,32,%r0
+	shld		\pgd,PxD_VALUE_SHIFT,\index
+	extrd,u,*=	\va,31,32,%r0
+	copy		\index,\pgd
 	extrd,u,*<>	\va,31,32,%r0
 	ldo		ASM_PGD_PMD_OFFSET(\pgd),\pgd
-	extrd,u,*=	\va,31,32,%r0
-	bb,>=,n		\pgd,_PAGE_PRESENT_BIT,\fault
 	L2_ptep		\pgd,\pte,\index,\va,\fault
 	.endm
 
Index: arch/parisc/kernel/head.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head.S,v
retrieving revision 1.6
diff -u -p -r1.6 head.S
--- arch/parisc/kernel/head.S	8 May 2004 14:12:45 -0000	1.6
+++ arch/parisc/kernel/head.S	9 Jul 2004 07:44:31 -0000
@@ -76,7 +76,8 @@ $bss_loop:
 	/* Initialize startup VM. Just map first 8 MB of memory */
 	ldil		L%PA(pg0),%r1
 	ldo		R%PA(pg0)(%r1),%r1
-	ldo		_PAGE_TABLE(%r1),%r3
+	shr		%r1,PxD_VALUE_SHIFT,%r3
+	ldo		(PxD_FLAG_PRESENT+PxD_FLAG_VALID)(%r3),%r3
 
 	ldil		L%PA(swapper_pg_dir),%r4
 	ldo		R%PA(swapper_pg_dir)(%r4),%r4
@@ -86,7 +87,7 @@ $bss_loop:
 	ldo		ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4),%r4
 1:
 	stw             %r3,0(%r4)
-	ldo		ASM_PAGE_SIZE(%r3),%r3
+	ldo		(ASM_PAGE_SIZE >> PxD_VALUE_SHIFT)(%r3),%r3
 	addib,>		-1,%r1,1b
 	ldo		ASM_PGD_ENTRY_SIZE(%r4),%r4
 
Index: arch/parisc/kernel/head64.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head64.S,v
retrieving revision 1.9
diff -u -p -r1.9 head64.S
--- arch/parisc/kernel/head64.S	8 May 2004 14:12:45 -0000	1.9
+++ arch/parisc/kernel/head64.S	7 Jul 2004 05:41:57 -0000
@@ -80,7 +80,8 @@ $bss_loop:
 
 	ldil		L%PA(pmd0),%r5
 	ldo		R%PA(pmd0)(%r5),%r5
-	ldo		_PAGE_TABLE(%r5),%r3
+	shrd		%r5,PxD_VALUE_SHIFT,%r3
+	ldo		(PxD_FLAG_PRESENT+PxD_FLAG_VALID)(%r3),%r3
 
 	ldil		L%PA(swapper_pg_dir),%r4
 	ldo		R%PA(swapper_pg_dir)(%r4),%r4
@@ -90,16 +91,17 @@ $bss_loop:
 
 	stw             %r3,ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4)
 
-	ldo		_PAGE_TABLE(%r1),%r3
+	shrd		%r1,PxD_VALUE_SHIFT,%r3
+	ldo		(PxD_FLAG_PRESENT+PxD_FLAG_VALID)(%r3),%r3
 	ldo		ASM_PMD_ENTRY*ASM_PMD_ENTRY_SIZE(%r5),%r5
 	ldi		ASM_PT_INITIAL,%r1
 1:
 	stw		%r3,0(%r5)
-	ldo		ASM_PAGE_SIZE(%r3),%r3
+	ldo		(ASM_PAGE_SIZE >> PxD_VALUE_SHIFT)(%r3),%r3
 	addib,>		-1,%r1,1b
 	ldo		ASM_PMD_ENTRY_SIZE(%r5),%r5
 
-	ldo		_PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
+	ldo             _PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
 	ldil		L%PA(pg0),%r1
 	ldo		R%PA(pg0)(%r1),%r1
 
Index: arch/parisc/kernel/inventory.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/inventory.c,v
retrieving revision 1.5
diff -u -p -r1.5 inventory.c
--- arch/parisc/kernel/inventory.c	4 Jun 2004 19:36:53 -0000	1.5
+++ arch/parisc/kernel/inventory.c	4 Jul 2004 17:46:52 -0000
@@ -25,6 +25,7 @@
 #include <linux/mm.h>
 #include <asm/hardware.h>
 #include <asm/io.h>
+#include <asm/mmzone.h>
 #include <asm/pdc.h>
 #include <asm/pdcpat.h>
 #include <asm/processor.h>
Index: arch/parisc/kernel/parisc_ksyms.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/parisc_ksyms.c,v
retrieving revision 1.16
diff -u -p -r1.16 parisc_ksyms.c
--- arch/parisc/kernel/parisc_ksyms.c	6 Mar 2004 14:43:46 -0000	1.16
+++ arch/parisc/kernel/parisc_ksyms.c	5 Jul 2004 21:53:23 -0000
@@ -173,3 +173,9 @@ EXPORT_SYMBOL(__moddi3);
 extern void $$dyncall(void);
 EXPORT_SYMBOL($$dyncall);
 #endif
+
+#ifdef CONFIG_DISCONTIGMEM
+#include <asm/mmzone.h>
+EXPORT_SYMBOL(node_data);
+EXPORT_SYMBOL(pfnnid_map);
+#endif
Index: arch/parisc/mm/init.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/mm/init.c,v
retrieving revision 1.6
diff -u -p -r1.6 init.c
--- arch/parisc/mm/init.c	24 May 2004 00:58:49 -0000	1.6
+++ arch/parisc/mm/init.c	9 Jul 2004 15:58:45 -0000
@@ -5,6 +5,7 @@
  *  Copyright 1999 SuSE GmbH
  *    changed by Philipp Rumpf
  *  Copyright 1999 Philipp Rumpf (prumpf@tux.org)
+ *  Copyright 2004 Randolph Chung (tausq@debian.org)
  *
  */
 
@@ -23,6 +24,7 @@
 #include <asm/pgalloc.h>
 #include <asm/tlb.h>
 #include <asm/pdc_chassis.h>
+#include <asm/mmzone.h>
 
 DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 
@@ -32,10 +34,11 @@ extern char _end;	/* end of BSS, defined
 extern char __init_begin, __init_end;
 
 #ifdef CONFIG_DISCONTIGMEM
-struct node_map_data node_data[MAX_PHYSMEM_RANGES];
-bootmem_data_t bmem_data[MAX_PHYSMEM_RANGES];
-unsigned char *chunkmap;
-unsigned int maxchunkmap;
+struct node_map_data node_data[MAX_NUMNODES];
+bootmem_data_t bmem_data[MAX_NUMNODES];
+
+/* Support up to 512GB of physical address space */
+unsigned char pfnnid_map[512];
 #endif
 
 static struct resource data_resource = {
@@ -119,21 +122,6 @@ static void __init setup_bootmem(void)
 
 	disable_sr_hashing(); /* Turn off space register hashing */
 
-#ifdef CONFIG_DISCONTIGMEM
-	/*
-	 * The below is still true as of 2.4.2. If this is ever fixed,
-	 * we can remove this warning!
-	 */
-
-	printk(KERN_WARNING "\n\n");
-	printk(KERN_WARNING "CONFIG_DISCONTIGMEM is enabled, which is probably a mistake. This\n");
-	printk(KERN_WARNING "option can lead to heavy swapping, even when there are gigabytes\n");
-	printk(KERN_WARNING "of free memory.\n\n");
-#endif
-
-#ifdef __LP64__
-
-#ifndef CONFIG_DISCONTIGMEM
 	/*
 	 * Sort the ranges. Since the number of ranges is typically
 	 * small, and performance is not an issue here, just do
@@ -160,11 +148,10 @@ static void __init setup_bootmem(void)
 		}
 	}
 
+#ifndef CONFIG_DISCONTIGMEM
 	/*
 	 * Throw out ranges that are too far apart (controlled by
-	 * MAX_GAP). If CONFIG_DISCONTIGMEM wasn't implemented so
-	 * poorly, we would recommend enabling that option, but,
-	 * until it is fixed, this is the best way to go.
+	 * MAX_GAP).
 	 */
 
 	for (i = 1; i < npmem_ranges; i++) {
@@ -172,6 +159,11 @@ static void __init setup_bootmem(void)
 			(pmem_ranges[i-1].start_pfn +
 			 pmem_ranges[i-1].pages) > MAX_GAP) {
 			npmem_ranges = i;
+			printk("Large gap in memory detected (%ld pages). "
+			       "Consider turning on CONFIG_DISCONTIGMEM\n",
+			       pmem_ranges[i].start_pfn -
+			       (pmem_ranges[i-1].start_pfn +
+			        pmem_ranges[i-1].pages));
 			break;
 		}
 	}
@@ -194,8 +186,6 @@ static void __init setup_bootmem(void)
 		}
 	}
 
-#endif /* __LP64__ */
-
 	sysram_resource_count = npmem_ranges;
 	for (i = 0; i < sysram_resource_count; i++) {
 		struct resource *res = &sysram_resources[i];
@@ -218,6 +208,7 @@ static void __init setup_bootmem(void)
 	mem_limit_func();       /* check for "mem=" argument */
 
 	mem_max = 0;
+	num_physpages = 0;
 	for (i = 0; i < npmem_ranges; i++) {
 		unsigned long rsize;
 
@@ -232,15 +223,16 @@ static void __init setup_bootmem(void)
 				npmem_ranges = i + 1;
 				mem_max = mem_limit;
 			}
+	        num_physpages += pmem_ranges[i].pages;
 			break;
 		}
+	    num_physpages += pmem_ranges[i].pages;
 		mem_max += rsize;
 	}
 
 	printk(KERN_INFO "Total Memory: %ld Mb\n",mem_max >> 20);
 
 #ifndef CONFIG_DISCONTIGMEM
-
 	/* Merge the ranges, keeping track of the holes */
 
 	{
@@ -272,9 +264,18 @@ static void __init setup_bootmem(void)
 	bootmap_start_pfn = PAGE_ALIGN(__pa((unsigned long) &_end)) >> PAGE_SHIFT;
 
 #ifdef CONFIG_DISCONTIGMEM
+	for (i = 0; i < MAX_PHYSMEM_RANGES; i++) {
+		memset(NODE_DATA(i), 0, sizeof(pg_data_t));
+		NODE_DATA(i)->bdata = &bmem_data[i];
+	}
+	memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
+
+	numnodes = npmem_ranges;
+
 	for (i = 0; i < npmem_ranges; i++)
-		node_data[i].pg_data.bdata = &bmem_data[i];
+		node_set_online(i);
 #endif
+
 	/*
 	 * Initialize and free the full range of memory in each range.
 	 * Note that the only writing these routines do are to the bootmap,
@@ -443,16 +444,20 @@ unsigned long pcxl_dma_start;
 
 void __init mem_init(void)
 {
-	int i;
-
 	high_memory = __va((max_pfn << PAGE_SHIFT));
-	max_mapnr = (virt_to_page(high_memory - 1) - mem_map) + 1;
 
-	num_physpages = 0;
-	mem_map = zone_table[0]->zone_mem_map;
-	for (i = 0; i < npmem_ranges; i++)
-		num_physpages += free_all_bootmem_node(NODE_DATA(i));
-	totalram_pages = num_physpages;
+#ifndef CONFIG_DISCONTIGMEM
+	max_mapnr = page_to_pfn(virt_to_page(high_memory - 1)) + 1;
+	mem_map = zone_table[ZONE_DMA]->zone_mem_map;
+	totalram_pages += free_all_bootmem();
+#else
+	{
+		int i;
+
+		for (i = 0; i < npmem_ranges; i++)
+			totalram_pages += free_all_bootmem_node(NODE_DATA(i));
+	}
+#endif
 
 	printk(KERN_INFO "Memory: %luk available\n", num_physpages << (PAGE_SHIFT-10));
 
@@ -485,6 +490,7 @@ void show_mem(void)
 	printk(KERN_INFO "Mem-info:\n");
 	show_free_areas();
 	printk(KERN_INFO "Free swap:	 %6dkB\n",nr_swap_pages<<(PAGE_SHIFT-10));
+#ifndef CONFIG_DISCONTIGMEM
 	i = max_mapnr;
 	while (i-- > 0) {
 		total++;
@@ -497,10 +503,50 @@ void show_mem(void)
 		else
 			shared += page_count(&mem_map[i]) - 1;
 	}
+#else
+	for (i = 0; i < npmem_ranges; i++) {
+		int j;
+
+		for (j = node_start_pfn(i); j < node_end_pfn(i); j++) {
+			struct page *p;
+
+			p = node_mem_map(i) + j - node_start_pfn(i);
+
+			total++;
+			if (PageReserved(p))
+				reserved++;
+			else if (PageSwapCache(p))
+				cached++;
+			else if (!page_count(p))
+				free++;
+			else
+				shared += page_count(p) - 1;
+        	}
+	}
+#endif
 	printk(KERN_INFO "%d pages of RAM\n", total);
 	printk(KERN_INFO "%d reserved pages\n", reserved);
 	printk(KERN_INFO "%d pages shared\n", shared);
 	printk(KERN_INFO "%d pages swap cached\n", cached);
+
+
+#ifdef CONFIG_DISCONTIGMEM
+	{
+		struct zonelist *zl;
+		int i, j, k;
+
+		for (i = 0; i < npmem_ranges; i++) {
+			for (j = 0; j < MAX_NR_ZONES; j++) {
+				zl = NODE_DATA(i)->node_zonelists + j;
+
+				printk("Zone list for zone %d on node %d: ", j, i);
+				for (k = 0; zl->zones[k] != NULL; k++) 
+					printk("[%d/%s] ", zl->zones[k]->zone_pgdat->node_id, zl->zones[k]->name);
+				printk("\n");
+			}
+		}
+	}
+#endif
 }
 
 
@@ -543,7 +589,7 @@ static void __init map_pages(unsigned lo
 #if PTRS_PER_PMD == 1
 		pmd = (pmd_t *)__pa(pg_dir);
 #else
-		pmd = (pmd_t *) (PAGE_MASK & pgd_val(*pg_dir));
+		pmd = (pmd_t *)pgd_address(*pg_dir);
 
 		/*
 		 * pmd is physical at this point
@@ -554,7 +600,7 @@ static void __init map_pages(unsigned lo
 			pmd = (pmd_t *) __pa(pmd);
 		}
 
-		pgd_val(*pg_dir) = _PAGE_TABLE | (unsigned long) pmd;
+		pgd_populate(NULL, pg_dir, __va(pmd));
 #endif
 		pg_dir++;
 
@@ -567,15 +613,14 @@ static void __init map_pages(unsigned lo
 			 * pg_table is physical at this point
 			 */
 
-			pg_table = (pte_t *) (PAGE_MASK & pmd_val(*pmd));
+			pg_table = (pte_t *)pmd_address(*pmd);
 			if (!pg_table) {
 				pg_table = (pte_t *)
 					alloc_bootmem_low_pages_node(NODE_DATA(0),PAGE_SIZE);
 				pg_table = (pte_t *) __pa(pg_table);
 			}
 
-			pmd_val(*pmd) = _PAGE_TABLE |
-					   (unsigned long) pg_table;
+			pmd_populate_kernel(NULL, pmd, __va(pg_table));
 
 			/* now change pg_table to kernel virtual addresses */
 
@@ -757,61 +802,26 @@ void __init paging_init(void)
 	flush_tlb_all_local();
 
 	for (i = 0; i < npmem_ranges; i++) {
-		unsigned long zones_size[MAX_NR_ZONES] = { 0, 0, 0, };
+		unsigned long zones_size[MAX_NR_ZONES] = { 0, 0, 0 };
 
+		/* We have an IOMMU, so all memory can go into a single
+		   ZONE_DMA zone. */
 		zones_size[ZONE_DMA] = pmem_ranges[i].pages;
+
 		free_area_init_node(i,NODE_DATA(i),NULL,zones_size,
-				(pmem_ranges[i].start_pfn << PAGE_SHIFT),0);
-	}
+				pmem_ranges[i].start_pfn, 0);
 
 #ifdef CONFIG_DISCONTIGMEM
-	/*
-	 * Initialize support for virt_to_page() macro.
-	 *
-	 * Note that MAX_ADDRESS is the largest virtual address that
-	 * we can map. However, since we map all physical memory into
-	 * the kernel address space, it also has an effect on the maximum
-	 * physical address we can map (MAX_ADDRESS - PAGE_OFFSET).
-	 */
-
-	maxchunkmap = MAX_ADDRESS >> CHUNKSHIFT;
-	chunkmap = (unsigned char *)alloc_bootmem(maxchunkmap);
-
-	for (i = 0; i < maxchunkmap; i++)
-	    chunkmap[i] = BADCHUNK;
-
-	for (i = 0; i < npmem_ranges; i++) {
-
-		ADJ_NODE_MEM_MAP(i) = NODE_MEM_MAP(i) - pmem_ranges[i].start_pfn;
 		{
-			unsigned long chunk_paddr;
-			unsigned long end_paddr;
-			int chunknum;
-
-			chunk_paddr = (pmem_ranges[i].start_pfn << PAGE_SHIFT);
-			end_paddr = chunk_paddr + (pmem_ranges[i].pages << PAGE_SHIFT);
-			chunk_paddr &= CHUNKMASK;
-
-			chunknum = (int)CHUNKNUM(chunk_paddr);
-			while (chunk_paddr < end_paddr) {
-				if (chunknum >= maxchunkmap)
-					goto badchunkmap1;
-				if (chunkmap[chunknum] != BADCHUNK)
-					goto badchunkmap2;
-				chunkmap[chunknum] = (unsigned char)i;
-				chunk_paddr += CHUNKSZ;
-				chunknum++;
-			}
+		    int j;
+		    for (j = (node_start_pfn(i) >> PFNNID_SHIFT);
+			 j <= (node_end_pfn(i) >> PFNNID_SHIFT);
+			 j++) {
+			pfnnid_map[j] = i;
+		    }
 		}
-	}
-
-	return;
-
-badchunkmap1:
-	panic("paging_init: Physical address exceeds maximum address space!\n");
-badchunkmap2:
-	panic("paging_init: Collision in chunk map array. CHUNKSZ needs to be smaller\n");
 #endif
+	}
 }
 
 #ifdef CONFIG_PA20
Index: fs/bio.c
===================================================================
RCS file: /var/cvs/linux-2.6/fs/bio.c,v
retrieving revision 1.9
diff -u -p -r1.9 bio.c
--- fs/bio.c	23 May 2004 23:52:39 -0000	1.9
+++ fs/bio.c	3 Jul 2004 06:55:49 -0000
@@ -345,8 +345,8 @@ static int __bio_add_page(request_queue_
 	}
 
 	/* If we may be able to merge these biovecs, force a recount */
-	if(BIOVEC_PHYS_MERGEABLE(bvec-1, bvec) ||
-	   BIOVEC_VIRT_MERGEABLE(bvec-1, bvec))
+	if (bio->bi_vcnt && (BIOVEC_PHYS_MERGEABLE(bvec-1, bvec) ||
+	    BIOVEC_VIRT_MERGEABLE(bvec-1, bvec)))
 		bio->bi_flags &= ~(1 << BIO_SEG_VALID);
 
 	bio->bi_vcnt++;
Index: include/asm-parisc/assembly.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/assembly.h,v
retrieving revision 1.1
diff -u -p -r1.1 assembly.h
--- include/asm-parisc/assembly.h	29 Jul 2003 17:02:03 -0000	1.1
+++ include/asm-parisc/assembly.h	7 Jul 2004 04:53:16 -0000
@@ -110,6 +110,16 @@
 	depd,z	\r, 63-\sa, 64-\sa, \t
 	.endm
 
+	/* Shift Right - note the r and t can NOT be the same! */
+	.macro shr r, sa, t
+	extru \r, 31-\sa, 32-\sa, \t
+	.endm
+
+	/* pa20w version of shift right */
+	.macro shrd r, sa, t
+	extrd,u \r, 63-\sa, 64-\sa, \t
+	.endm
+
 	/* load 32-bit 'value' into 'reg' compensating for the ldil
 	 * sign-extension when running in wide mode.
 	 * WARNING!! neither 'value' nor 'reg' can be expressions
Index: include/asm-parisc/io.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/io.h,v
retrieving revision 1.7
diff -u -p -r1.7 io.h
--- include/asm-parisc/io.h	10 Mar 2004 19:24:49 -0000	1.7
+++ include/asm-parisc/io.h	3 Jul 2004 06:55:49 -0000
@@ -24,11 +24,6 @@ extern unsigned long parisc_vmerge_max_s
 #define virt_to_bus virt_to_phys
 #define bus_to_virt phys_to_virt
 
-/*
- * Change "struct page" to physical address.
- */
-#define page_to_phys(page)	((page - mem_map) << PAGE_SHIFT)
-
 /* Memory mapped IO */
 
 extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
Index: include/asm-parisc/mmzone.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/mmzone.h,v
retrieving revision 1.1
diff -u -p -r1.1 mmzone.h
--- include/asm-parisc/mmzone.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/mmzone.h	6 Jul 2004 03:24:57 -0000
@@ -1,31 +1,89 @@
 #ifndef _PARISC_MMZONE_H
 #define _PARISC_MMZONE_H
 
+#ifdef CONFIG_DISCONTIGMEM
+
+#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
+extern int npmem_ranges;
+
 struct node_map_data {
     pg_data_t pg_data;
-    struct page *adj_node_mem_map;
 };
 
 extern struct node_map_data node_data[];
-extern unsigned char *chunkmap;
-
-#define BADCHUNK                ((unsigned char)0xff)
-#define CHUNKSZ                 (256*1024*1024)
-#define CHUNKSHIFT              28
-#define CHUNKMASK               (~(CHUNKSZ - 1))
-#define CHUNKNUM(paddr)         ((paddr) >> CHUNKSHIFT)
 
 #define NODE_DATA(nid)          (&node_data[nid].pg_data)
-#define NODE_MEM_MAP(nid)       (NODE_DATA(nid)->node_mem_map)
-#define ADJ_NODE_MEM_MAP(nid)   (node_data[nid].adj_node_mem_map)
-
-#define phys_to_page(paddr) \
-	(ADJ_NODE_MEM_MAP(chunkmap[CHUNKNUM((paddr))]) \
-	+ ((paddr) >> PAGE_SHIFT))
-
-#define virt_to_page(kvaddr) phys_to_page(__pa(kvaddr))
-
-/* This is kind of bogus, need to investigate performance of doing it right */
-#define VALID_PAGE(page)	((page - mem_map) < max_mapnr)
 
-#endif /* !_PARISC_MMZONE_H */
+/*
+ * Given a kernel address, find the home node of the underlying memory.
+ */
+#define kvaddr_to_nid(kaddr)	pfn_to_nid(__pa(kaddr) >> PAGE_SHIFT)
+
+#define node_mem_map(nid)	(NODE_DATA(nid)->node_mem_map)
+#define node_start_pfn(nid)	(NODE_DATA(nid)->node_start_pfn)
+#define node_end_pfn(nid)						\
+({									\
+	pg_data_t *__pgdat = NODE_DATA(nid);				\
+	__pgdat->node_start_pfn + __pgdat->node_spanned_pages;		\
+})
+#define node_localnr(pfn, nid)		((pfn) - node_start_pfn(nid))
+
+#define local_mapnr(kvaddr)						\
+({									\
+	unsigned long __pfn = __pa(kvaddr) >> PAGE_SHIFT;		\
+	(__pfn - node_start_pfn(pfn_to_nid(__pfn)));			\
+})
+
+#define pfn_to_page(pfn)						\
+({									\
+	unsigned long __pfn = (pfn);					\
+	int __node  = pfn_to_nid(__pfn);				\
+	&node_mem_map(__node)[node_localnr(__pfn,__node)];		\
+})
+
+#define page_to_pfn(pg)							\
+({									\
+	struct page *__page = pg;					\
+	struct zone *__zone = page_zone(__page);			\
+	BUG_ON(__zone == NULL);						\
+	(unsigned long)(__page - __zone->zone_mem_map)			\
+		+ __zone->zone_start_pfn;				\
+})
+
+/* We have these possible memory map layouts:
+ * Astro: 0-3.75, 67.75-68, 4-64
+ * zx1: 0-1, 257-260, 4-256
+ * Stretch (N-class): 0-2, 4-32, 34-xxx
+ */
+
+/* Since each 1GB can only belong to one region (node), we can create
+ * an index table for pfn to nid lookup; each entry in pfnnid_map 
+ * represents 1GB, and contains the node that the memory belongs to. */
+
+#define PFNNID_SHIFT (30 - PAGE_SHIFT)
+extern unsigned char pfnnid_map[];
+
+static inline int pfn_to_nid(unsigned long pfn)
+{
+	unsigned int i;
+    unsigned char r;
+    i = pfn >> PFNNID_SHIFT;
+    r = pfnnid_map[i];
+    BUG_ON(r == 0xff);
+
+    return (int)r;
+}
+
+static inline int pfn_valid(int pfn)
+{
+	int nid = pfn_to_nid(pfn);
+
+	if (nid >= 0)
+		return (pfn < node_end_pfn(nid));
+	return 0;
+}
+
+#else /* !CONFIG_DISCONTIGMEM */
+#define MAX_PHYSMEM_RANGES 	1 
+#endif
+#endif /* _PARISC_MMZONE_H */
Index: include/asm-parisc/page.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/page.h,v
retrieving revision 1.9
diff -u -p -r1.9 page.h
--- include/asm-parisc/page.h	5 May 2004 23:02:47 -0000	1.9
+++ include/asm-parisc/page.h	9 Jul 2004 04:05:27 -0000
@@ -60,10 +60,15 @@ typedef struct { unsigned long pgprot; }
 #else
 #define pte_flags(x)	((x).flags)
 #endif
-#define pmd_val(x)	((x).pmd)
-#define pgd_val(x)	((x).pgd)
+
+/* These do not work lvalues, so make sure we don't use them as such. */
+#define pmd_val(x)	((x).pmd + 0)
+#define pgd_val(x)	((x).pgd + 0)
 #define pgprot_val(x)	((x).pgprot)
 
+#define __pmd_val_set(x,n) (x).pmd = (n)
+#define __pgd_val_set(x,n) (x).pgd = (n)
+
 #define __pte(x)	((pte_t) { (x) } )
 #define __pmd(x)	((pmd_t) { (x) } )
 #define __pgd(x)	((pgd_t) { (x) } )
@@ -83,12 +88,6 @@ extern __inline__ int get_order(unsigned
 	return order;
 }
 
-#ifdef __LP64__
-#define MAX_PHYSMEM_RANGES 8 /* Fix the size for now (current known max is 3) */
-#else
-#define MAX_PHYSMEM_RANGES 1 /* First range is only range that fits in 32 bits */
-#endif
-
 typedef struct __physmem_range {
 	unsigned long start_pfn;
 	unsigned long pages;       /* PAGE_SIZE pages */
@@ -144,15 +143,16 @@ extern int npmem_ranges;
 #define __pa(x)			((unsigned long)(x)-PAGE_OFFSET)
 #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
 
+#ifndef CONFIG_DISCONTIGMEM
 #define pfn_to_page(pfn)	(mem_map + (pfn))
 #define page_to_pfn(page)	((unsigned long)((page) - mem_map))
 #define pfn_valid(pfn)		((pfn) < max_mapnr)
+#endif /* CONFIG_DISCONTIGMEM */
+
 #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 
-#ifndef CONFIG_DISCONTIGMEM
-#define virt_to_page(kaddr)     (mem_map + (__pa(kaddr) >> PAGE_SHIFT))
-#define VALID_PAGE(page)	((page - mem_map) < max_mapnr)
-#endif  /* !CONFIG_DISCONTIGMEM */
+#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
+#define virt_to_page(kaddr)     pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
Index: include/asm-parisc/pgalloc.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pgalloc.h,v
retrieving revision 1.5
diff -u -p -r1.5 pgalloc.h
--- include/asm-parisc/pgalloc.h	2 May 2004 16:16:01 -0000	1.5
+++ include/asm-parisc/pgalloc.h	9 Jul 2004 07:51:18 -0000
@@ -21,7 +21,7 @@
  * kernel for machines with under 4GB of memory) */
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-	pgd_t *pgd = (pgd_t *)__get_free_pages(GFP_KERNEL|GFP_DMA,
+	pgd_t *pgd = (pgd_t *)__get_free_pages(GFP_KERNEL,
 					       PGD_ALLOC_ORDER);
 	pgd_t *actual_pgd = pgd;
 
@@ -30,13 +30,15 @@ static inline pgd_t *pgd_alloc(struct mm
 #ifdef __LP64__
 		actual_pgd += PTRS_PER_PGD;
 		/* Populate first pmd with allocated memory.  We mark it
-		 * with _PAGE_GATEWAY as a signal to the system that this
+		 * with PxD_FLAG_ATTACHED as a signal to the system that this
 		 * pmd entry may not be cleared. */
-		pgd_val(*actual_pgd) = (_PAGE_TABLE | _PAGE_GATEWAY) + 
-			(__u32)__pa((unsigned long)pgd);
+		__pgd_val_set(*actual_pgd, (PxD_FLAG_PRESENT | 
+				        PxD_FLAG_VALID | 
+					PxD_FLAG_ATTACHED) 
+			+ (__u32)(__pa((unsigned long)pgd) >> PxD_VALUE_SHIFT));
 		/* The first pmd entry also is marked with _PAGE_GATEWAY as
 		 * a signal that this pmd may not be freed */
-		pgd_val(*pgd) = _PAGE_GATEWAY;
+		__pgd_val_set(*pgd, PxD_FLAG_ATTACHED);
 #endif
 	}
 	return actual_pgd;
@@ -56,14 +58,13 @@ static inline void pgd_free(pgd_t *pgd)
 
 static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
 {
-	pgd_val(*pgd) = _PAGE_TABLE + (__u32)__pa((unsigned long)pmd);
+	__pgd_val_set(*pgd, (PxD_FLAG_PRESENT | PxD_FLAG_VALID) +
+		        (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT));
 }
 
-/* NOTE: pmd must be in ZONE_DMA (<4GB) so the pgd pointer can be
- * housed in 32 bits */
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT|GFP_DMA,
+	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
 					       PMD_ORDER);
 	if (pmd)
 		memset(pmd, 0, PAGE_SIZE<<PMD_ORDER);
@@ -73,7 +74,7 @@ static inline pmd_t *pmd_alloc_one(struc
 static inline void pmd_free(pmd_t *pmd)
 {
 #ifdef __LP64__
-	if(pmd_val(*pmd) & _PAGE_GATEWAY)
+	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
 		/* This is the permanent pmd attached to the pgd;
 		 * cannot free it */
 		return;
@@ -102,23 +103,24 @@ pmd_populate_kernel(struct mm_struct *mm
 #ifdef __LP64__
 	/* preserve the gateway marker if this is the beginning of
 	 * the permanent pmd */
-	if(pmd_val(*pmd) & _PAGE_GATEWAY)
-		pmd_val(*pmd) = (_PAGE_TABLE | _PAGE_GATEWAY)
-			+ (__u32)__pa((unsigned long)pte);
+	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
+		__pmd_val_set(*pmd, (PxD_FLAG_PRESENT |
+				 PxD_FLAG_VALID |
+				 PxD_FLAG_ATTACHED) 
+			+ (__u32)(__pa((unsigned long)pte) >> PxD_VALUE_SHIFT));
 	else
 #endif
-		pmd_val(*pmd) = _PAGE_TABLE + (__u32)__pa((unsigned long)pte);
+		__pmd_val_set(*pmd, (PxD_FLAG_PRESENT | PxD_FLAG_VALID) 
+			+ (__u32)(__pa((unsigned long)pte) >> PxD_VALUE_SHIFT));
 }
 
 #define pmd_populate(mm, pmd, pte_page) \
 	pmd_populate_kernel(mm, pmd, page_address(pte_page))
 
-/* NOTE: pte must be in ZONE_DMA (<4GB) so that the pmd pointer
- * can be housed in 32 bits */
 static inline struct page *
 pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-	struct page *page = alloc_page(GFP_KERNEL|__GFP_REPEAT|GFP_DMA);
+	struct page *page = alloc_page(GFP_KERNEL|__GFP_REPEAT);
 	if (likely(page != NULL))
 		clear_page(page_address(page));
 	return page;
@@ -127,7 +129,7 @@ pte_alloc_one(struct mm_struct *mm, unsi
 static inline pte_t *
 pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 {
-	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|GFP_DMA);
+	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT);
 	if (likely(pte != NULL))
 		clear_page(pte);
 	return pte;
Index: include/asm-parisc/pgtable.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pgtable.h,v
retrieving revision 1.13
diff -u -p -r1.13 pgtable.h
--- include/asm-parisc/pgtable.h	1 Jul 2004 20:24:38 -0000	1.13
+++ include/asm-parisc/pgtable.h	7 Jul 2004 04:06:30 -0000
@@ -177,6 +177,21 @@ extern  void *vmalloc_start;
 #define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
 #define _PAGE_KERNEL	(_PAGE_PRESENT | _PAGE_EXEC | _PAGE_READ | _PAGE_WRITE | _PAGE_DIRTY | _PAGE_ACCESSED)
 
+/* The pgd/pmd contains a ptr (in phys addr space); since all pgds/pmds
+ * are page-aligned, we don't care about the PAGE_OFFSET bits, except
+ * for a few meta-information bits, so we shift the address to be
+ * able to effectively address 40-bits of physical address space. */
+#define _PxD_PRESENT_BIT   31
+#define _PxD_ATTACHED_BIT  30
+#define _PxD_VALID_BIT     29
+
+#define PxD_FLAG_PRESENT  (1 << xlate_pabit(_PxD_PRESENT_BIT))
+#define PxD_FLAG_ATTACHED (1 << xlate_pabit(_PxD_ATTACHED_BIT))
+#define PxD_FLAG_VALID    (1 << xlate_pabit(_PxD_VALID_BIT))
+#define PxD_FLAG_MASK     (0xf)
+#define PxD_FLAG_SHIFT    (4)
+#define PxD_VALUE_SHIFT   (8)
+
 #ifndef __ASSEMBLY__
 
 #define PAGE_NONE	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
@@ -244,49 +259,49 @@ extern unsigned long *empty_zero_page;
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
 #define pte_clear(xp)	do { pte_val(*(xp)) = 0; } while (0)
 
+#define pmd_flag(x)	(pmd_val(x) & PxD_FLAG_MASK)
+#define pmd_address(x)	((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
+#define pgd_flag(x)	(pgd_val(x) & PxD_FLAG_MASK)
+#define pgd_address(x)	((unsigned long)(pgd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
+
 #ifdef __LP64__
 /* The first entry of the permanent pmd is not there if it contains
  * the gateway marker */
-#define pmd_none(x)	(!pmd_val(x) || pmd_val(x) == _PAGE_GATEWAY)
-#define pmd_bad(x)	((pmd_val(x) & ~PAGE_MASK) != _PAGE_TABLE && (pmd_val(x) & ~PAGE_MASK) != (_PAGE_TABLE | _PAGE_GATEWAY))
+#define pmd_none(x)	(!pmd_val(x) || pmd_flag(x) == PxD_FLAG_ATTACHED)
 #else
 #define pmd_none(x)	(!pmd_val(x))
-#define pmd_bad(x)	((pmd_val(x) & ~PAGE_MASK) != _PAGE_TABLE)
 #endif
-#define pmd_present(x)	(pmd_val(x) & _PAGE_PRESENT)
+#define pmd_bad(x)	(!(pmd_flag(x) & PxD_FLAG_VALID))
+#define pmd_present(x)	(pmd_flag(x) & PxD_FLAG_PRESENT)
 static inline void pmd_clear(pmd_t *pmd) {
 #ifdef __LP64__
-	if(pmd_val(*pmd) & _PAGE_GATEWAY)
+	if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
 		/* This is the entry pointing to the permanent pmd
 		 * attached to the pgd; cannot clear it */
-		pmd_val(*pmd) = _PAGE_GATEWAY;
+		__pmd_val_set(*pmd, PxD_FLAG_ATTACHED);
 	else
 #endif
-		pmd_val(*pmd) = 0;
+		__pmd_val_set(*pmd,  0);
 }
 
 
 
 #if PT_NLEVELS == 3
-#define pgd_page(pgd) ((unsigned long) __va(pgd_val(pgd) & PAGE_MASK))
+#define pgd_page(pgd) ((unsigned long) __va(pgd_address(pgd)))
 
 /* For 64 bit we have three level tables */
 
 #define pgd_none(x)     (!pgd_val(x))
-#ifdef __LP64__
-#define pgd_bad(x)      ((pgd_val(x) & ~PAGE_MASK) != _PAGE_TABLE && (pgd_val(x) & ~PAGE_MASK) != (_PAGE_TABLE | _PAGE_GATEWAY))
-#else
-#define pgd_bad(x)      ((pgd_val(x) & ~PAGE_MASK) != _PAGE_TABLE)
-#endif
-#define pgd_present(x)  (pgd_val(x) & _PAGE_PRESENT)
+#define pgd_bad(x)      (!(pgd_flag(x) & PxD_FLAG_VALID))
+#define pgd_present(x)  (pgd_flag(x) & PxD_FLAG_PRESENT)
 static inline void pgd_clear(pgd_t *pgd) {
 #ifdef __LP64__
-	if(pgd_val(*pgd) & _PAGE_GATEWAY)
+	if(pgd_flag(*pgd) & PxD_FLAG_ATTACHED)
 		/* This is the permanent pmd attached to the pgd; cannot
 		 * free it */
 		return;
 #endif
-	pgd_val(*pgd) = 0;
+	__pgd_val_set(*pgd, 0);
 }
 #else
 /*
@@ -353,15 +368,11 @@ extern inline pte_t pte_modify(pte_t pte
 
 #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
 
-#ifdef CONFIG_DISCONTIGMEM
-#define pte_page(x) (phys_to_page(pte_val(x)))
-#else
-#define pte_page(x) (mem_map+(pte_val(x) >> PAGE_SHIFT))
-#endif
+#define pte_page(pte)		(pfn_to_page(pte_pfn(pte)))
 
-#define pmd_page_kernel(pmd)	((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
+#define pmd_page_kernel(pmd)	((unsigned long) __va(pmd_address(pmd)))
 
-#define __pmd_page(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
+#define __pmd_page(pmd) ((unsigned long) __va(pmd_address(pmd)))
 #define pmd_page(pmd)	virt_to_page((void *)__pmd_page(pmd))
 
 #define pgd_index(address) ((address) >> PGDIR_SHIFT)
--- include/asm-parisc/numnodes.h	Sat Jul  3 00:55:49 2004
+++ include/asm-parisc/numnodes.h	Sat Jul  3 00:55:49 2004
@@ -0,0 +1,9 @@
+#ifndef _ASM_MAX_NUMNODES_H
+#define _ASM_MAX_NUMNODES_H
+
+#include <linux/config.h>
+
+/* Max 8 Nodes */
+#define NODES_SHIFT	3
+
+#endif /* _ASM_MAX_NUMNODES_H */
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Subject: [parisc-linux] kernel BUG at include/asm/mmzone.h:74!
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I'm now running into this problem when trying to start X11, either with the VisEG stifb or sstfb driver.

Linux version 2.6.7-pa10 (root@p100) (gcc version 3.0.2 20010829 (prerelease)) #52 Sat Jul 10 12:13:50 CEST 2004

Machine: c3k, Kernel 2.6.7-pa10, 32bit kernel.

kernel BUG at include/asm/mmzone.h:74!
Kernel addresses on the stack:
 [<10128b94>] printk+0x108/0x184
 [<10107ee8>] dump_stack+0x18/0x24
 [<10154ab8>] remap_page_range+0x198/0x47c
 [<10166a24>] do_sync_write+0x74/0xa8
 [<102932f0>] fb_mmap+0x11c/0x130
 [<10158594>] do_mmap_pgoff+0x3b8/0x680
 [<10166ae4>] vfs_write+0x8c/0x138
 [<1010f2b4>] do_mmap2+0x74/0xdc
 [<1016615c>] sys_open+0x84/0xa8
 [<1010a35c>] tracesys_exit+0x0/0x34
 [<1010d088>] intr_check_sig+0x0/0xc

Is it maybe related to the latest CONFIG_DISCONTIGMEM or arch/parisc/mm/init.c changes ?

Helge
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Subject: Re: [parisc-linux] kernel BUG at include/asm/mmzone.h:74!
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In reference to a message from Helge Deller, dated Jul 10:
> I'm now running into this problem when trying to start X11, either with the VisEG stifb or sstfb driver.

this is because mmio space is not handled properly by the discontigmem
support...

this patch should "fix" it, but i'm not completely happy with this 
approach.  will think about it some more. it won't work on 64-bit 
platforms because pfn_is_io() is wrong there....

you don't need CONFIG_DISCONTIGMEM on c3000, so you can also just 
disable that :)

Index: include/asm-parisc/mmzone.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/mmzone.h,v
retrieving revision 1.2
diff -u -p -r1.2 mmzone.h
--- include/asm-parisc/mmzone.h	9 Jul 2004 19:04:21 -0000	1.2
+++ include/asm-parisc/mmzone.h	10 Jul 2004 17:03:25 -0000
@@ -64,10 +64,16 @@ extern struct node_map_data node_data[];
 #define PFNNID_MAP_MAX  512     /* support 512GB */
 extern unsigned char pfnnid_map[PFNNID_MAP_MAX];
 
+#define pfn_is_io(pfn) ((pfn & (0xf0000000 >> PAGE_SHIFT)) == (0xf0000000 >> PAGE_SHIFT))
+
 static inline int pfn_to_nid(unsigned long pfn)
 {
 	unsigned int i;
 	unsigned char r;
+
+	if (unlikely(pfn_is_io(pfn)))
+		return 0;
+
 	i = pfn >> PFNNID_SHIFT;
 	BUG_ON(i >= sizeof(pfnnid_map) / sizeof(pfnnid_map[0]));
 	r = pfnnid_map[i];


randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/



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Hi tausq,

On Saturday 10 July 2004 19:16, Randolph Chung wrote:
> In reference to a message from Helge Deller, dated Jul 10:
> > I'm now running into this problem when trying to start X11, either with the VisEG stifb or sstfb driver.
> 
> this is because mmio space is not handled properly by the discontigmem
> support...
> 
> this patch should "fix" it, but i'm not completely happy with this 
> approach.  will think about it some more. it won't work on 64-bit 
> platforms because pfn_is_io() is wrong there....

The patch you committed for 2.6.7-pa12 worked on my c3k.
Thanks for fixing !

Helge
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Subject: [parisc-linux] Re: 2.6.4-rc1-pa3 siimage/NS87415 IDE progess (and
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[ Note the date! sorry...finally got around to this...]

On Tue, Mar 09, 2004 at 03:26:00PM +0000, M. Grabert wrote:
...
> But NOW I have some very weird problem for you!
...
> Anyway, the IDE hard drive works with the onboard IDE controller of the C3000!
> ... Well, not 100%. Let me explain. The mystery is:
> 
> IDE works fine (without DMA support, like in the 2.4 kernels), as long as
> I interrupt the automatic boot up and to a "sea" followed by a "bo pri".

I looked at what the firmware is doing "out of the ordinary"
and it's only writing three config space registers at 0x40-0x42 offset
of the suckyio IDE. I appended a patch that does the same thing.
Well, almost. We don't want to mask interrupts in CTRL2.

And it seems to work. At least with the CD-532E-B 32X ATAPI CD-ROM drive.
I only tried  to "dd" from a data CD with and without DMA enabled.
w/o DMA I get ~900KB/s and with DMA I get ~2.4MB/s (8K blocks).

Now if someone could explain WTH the following bits in suckyIO
mean, it would likely explain why the DMA didn't work before.
See the 87560.pdf (page 247) available from parisc-linux docs:
	
| 20.4.17 Control Register 1
...
| bit  Description
|  4   Channel 1 Drive 1 IDE/ATAPI Buffer Mode
|      0: Normal IDE prefetch buffer mode (default)
|      1: ATAPI buffer mode (no prefetching)

which I think is related to CTRL3 (0x42):
| 20.4.19 Control Register 3
...
| Bit Description
|  0  Channel 1 Pre-fetch Buffer.
|     0: Disabled
|     1: Enabled
|  1  Channel 2 Pre-fetch Buffer.
|     0: Disabled
|     1: Enabled

(NS87415 data sheet says essentially the identical thing)


Can you (or anyone else) test this patch with IDE disk drive on C3000?
If this works, I can get rid of the magic numbers (define constants)
and commit the code.

grant

Index: drivers/ide/pci/ns87415.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/ide/pci/ns87415.c,v
retrieving revision 1.16
diff -u -p -r1.16 ns87415.c
--- drivers/ide/pci/ns87415.c	16 Jun 2004 18:47:42 -0000	1.16
+++ drivers/ide/pci/ns87415.c	11 Jul 2004 21:54:17 -0000
@@ -235,6 +235,25 @@ static ide_pci_device_t ns87415_chipset 
 
 static int __devinit ns87415_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
+#ifdef CONFIG_PARISC
+	u8 progif = 0;
+
+	/* Firmware (IODC) doesn't init this unless we interrupt
+	 * the auto-boot and "search".
+	 */
+	pci_read_config_byte(dev, PCI_CLASS_PROG, &progif);
+	pci_write_config_byte(dev, PCI_CLASS_PROG, progif | 0x8f);
+
+	/* IODC clobbers the CTRL registers with:
+	 * CTRL1 = 0xf0 = "ATAPI buffer mode (no prefetching)" for everyone
+	 * CTRL2 = 0x03 = mask chan1/2 interrupts
+	 * CTRL3 = 0x00 = "disable prefetch buffer"/"Master Wait States"
+	 */
+	pci_write_config_byte(dev, 0x40, 0xf0); /* IDE_CTRL1 */
+	pci_write_config_byte(dev, 0x41, 0x00); /* IDE_CTRL2 */
+	pci_write_config_byte(dev, 0x42, 0x00); /* IDE_CTRL3 */
+#endif
+
 	ide_setup_pci_device(dev, &ns87415_chipset);
 	return 0;
 }
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Subject: [parisc-linux] Re: 2.6.4-rc1-pa3 siimage/NS87415 IDE progess (and
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> Can you (or anyone else) test this patch with IDE disk drive on C3000?
> If this works, I can get rid of the magic numbers (define constants)
> and commit the code.

don't have an IDE drive to try it with, but if it works, shouldn't it be
done as a pcibios fixup instead? We already have a fixup routine in
drivers/parisc/superio.c:superio_fixup_pci(), so you can probably just
add it there.

thanks
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: [parisc-linux] Re: 2.6.4-rc1-pa3 siimage/NS87415 IDE progess (and
	another mystery)!
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On Sun, Jul 11, 2004 at 04:18:29PM -0600, Grant Grundler wrote:

> [ Note the date! sorry...finally got around to this...]
>
> On Tue, Mar 09, 2004 at 03:26:00PM +0000, M. Grabert wrote:
> ...

No problem, as long as it's not forgotten ;)

> > But NOW I have some very weird problem for you!
> ...
> > Anyway, the IDE hard drive works with the onboard IDE controller of the C3000!
> > ... Well, not 100%. Let me explain. The mystery is:
> > 
> > IDE works fine (without DMA support, like in the 2.4 kernels), as long as
> > I interrupt the automatic boot up and to a "sea" followed by a "bo pri".
> 
> I looked at what the firmware is doing "out of the ordinary"
> and it's only writing three config space registers at 0x40-0x42 offset
> of the suckyio IDE. I appended a patch that does the same thing.
> Well, almost. We don't want to mask interrupts in CTRL2.

Great (investigative) work!

[...]

> Can you (or anyone else) test this patch with IDE disk drive on C3000?
> If this works, I can get rid of the magic numbers (define constants)
> and commit the code.

Will try it asap and post the result on the list.

Thanks alot,
   Max
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Subject: Re: [parisc-linux] Re: 2.6.4-rc1-pa3 siimage/NS87415 IDE progess (and
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> don't have an IDE drive to try it with, but if it works, shouldn't it be
> done as a pcibios fixup instead? We already have a fixup routine in
> drivers/parisc/superio.c:superio_fixup_pci(), so you can probably just
> add it there.

i.e. (the progif write was removed since it's redundant):

Index: drivers/parisc/superio.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/superio.c,v
retrieving revision 1.9
diff -u -p -r1.9 superio.c
--- drivers/parisc/superio.c	18 May 2004 13:08:56 -0000	1.9
+++ drivers/parisc/superio.c	11 Jul 2004 23:33:06 -0000
@@ -482,6 +482,16 @@ void superio_fixup_pci(struct pci_dev *p
 	pci_write_config_byte(pdev, PCI_CLASS_PROG, pdev->class);
 
 	pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
+
+	/* IODC clobbers the CTRL registers with:
+	 * CTRL1 = 0xf0 = "ATAPI buffer mode (no prefetching)" for everyone
+	 * CTRL2 = 0x03 = mask chan1/2 interrupts
+	 * CTRL3 = 0x00 = "disable prefetch buffer"/"Master Wait States"
+	 */
+	pci_write_config_byte(pdev, 0x40, 0xf0); /* IDE_CTRL1 */
+	pci_write_config_byte(pdev, 0x41, 0x00); /* IDE_CTRL2 */
+	pci_write_config_byte(pdev, 0x42, 0x00); /* IDE_CTRL3 */
+
 	printk("PCI: Enabled native mode for NS87415 (pif=0x%x)\n", prog);
 }
 

works fine on my c3750 with a cdrom drive too! Great job Grant :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

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On Sun, Jul 11, 2004 at 04:14:01PM -0700, Randolph Chung wrote:
> > Can you (or anyone else) test this patch with IDE disk drive on C3000?
> > If this works, I can get rid of the magic numbers (define constants)
> > and commit the code.
> 
> don't have an IDE drive to try it with, but if it works, shouldn't it be
> done as a pcibios fixup instead? We already have a fixup routine in
> drivers/parisc/superio.c:superio_fixup_pci(), so you can probably just
> add it there.

Yes - you are right. I didn't even think of that.

grant
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Subject: Re: [parisc-linux] Re: 2.6.4-rc1-pa3 siimage/NS87415 IDE progess (and
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On Sun, Jul 11, 2004 at 04:34:39PM -0700, Randolph Chung wrote:
> i.e. (the progif write was removed since it's redundant):

Much nicer. Here's the cleaned up patch based on your code 
that I'd like to commit.

grant


Index: Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/Makefile,v
retrieving revision 1.220
diff -u -p -r1.220 Makefile
--- Makefile	11 Jul 2004 17:31:32 -0000	1.220
+++ Makefile	12 Jul 2004 00:07:49 -0000
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 7
-EXTRAVERSION = -pa13
+EXTRAVERSION = -pa14
 NAME=Zonked Quokka
 
 # *DOCUMENTATION*
Index: drivers/parisc/superio.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/superio.c,v
retrieving revision 1.9
diff -u -p -r1.9 superio.c
--- drivers/parisc/superio.c	18 May 2004 13:08:56 -0000	1.9
+++ drivers/parisc/superio.c	12 Jul 2004 00:07:49 -0000
@@ -483,6 +483,13 @@ void superio_fixup_pci(struct pci_dev *p
 
 	pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
 	printk("PCI: Enabled native mode for NS87415 (pif=0x%x)\n", prog);
+
+	/* IODC clobbers the SuckyIO CTRL registers when we "search"
+	 * from BCH command line. Code below does the same.
+	 */
+	pci_write_config_byte(pdev, SIO_IDE_CTRL1, SIO_IDE_ATAPI_BUF);
+	pci_write_config_byte(pdev, SIO_IDE_CTRL2, 0x00);
+	pci_write_config_byte(pdev, SIO_IDE_CTRL3, 0x00);
 }
 
 /* Because of a defect in Super I/O, all reads of the PCI DMA status 
Index: include/asm-parisc/superio.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/superio.h,v
retrieving revision 1.4
diff -u -p -r1.4 superio.h
--- include/asm-parisc/superio.h	11 Mar 2004 05:41:54 -0000	1.4
+++ include/asm-parisc/superio.h	12 Jul 2004 00:07:49 -0000
@@ -12,6 +12,16 @@
 #define SIO_SP2BAR 0x98		/* Serial 2 BAR */
 #define SIO_PPBAR  0x9C		/* Parallel BAR */
 
+/* IDE (NS87415) CTRL registers */
+#define SIO_IDE_CTRL1  0x40	/* IDE Control Register 1 */
+#define   SIO_IDE_ATAPI_BUF 0xf0   /* "ATAPI buffer mode (no prefetching)" */
+#define SIO_IDE_CTRL2  0x41	/* IDE Control Register 2 */
+#define   SIO_IDE_CHAN1_IRQ 0x01   /* mask Channel 1 IRQ */
+#define   SIO_IDE_CHAN2_IRQ 0x02   /* mask Channel 2 IRQ */
+#define SIO_IDE_CTRL3  0x42	/* IDE Control Register 3 */
+#define   SIO_IDE_CHAN1_PREFETCH_ENB 0x01 /* Enable "Chan 1 Pre-fetch Buffer" */
+#define   SIO_IDE_CHAN2_PREFETCH_ENB 0x02
+
 #define TRIGGER_1  0x67		/* Edge/level trigger register 1 */
 #define TRIGGER_2  0x68		/* Edge/level trigger register 2 */
 
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On Mon, Jul 12, 2004 at 04:37:52AM +0100, M. Grabert wrote:
> Tested above patch, but unfortunately it didn't work for me,

The rest of your post in fact suggests it did.
Ie you should no longer need to "sea" at the boot prompt.

> the NS87415 still doesn't use DMA (or so it seems, at least it's
> still the 3MB/s instead of the expected 30-40MB/s).
> 
> hdparm -c /dev/hda showed DMA was turned on, and I even set it on
> again (hdparm -c 1), just to be sure, but it didn't make any
> difference in performance :(

This patch makes no attempt at changing existing DMA behaviors.
It's likely the NS87415 code needs to twiddle the "Prefetch Mode"
bits for something other than ATAPI (no prefetch) to get
better performance.

grant
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On Mon, Jul 12, 2004 at 05:19:35AM +0100, M. Grabert wrote:
> BTW, what are the supported DMA modes of the NS87415?

Hopefully the ns87415 data sheet will specify that.

> I suppose BM-DMA means BusMaster-DMA, but does the NS87415 support any
> Ultra-DMA modes, or only Multi-Word DMA?

DMA from the IDE controller are just regular PCI transactions.
There is no such thing as Ultra-DMA for PCI.
There is a Multi-Word DMA but I'm skeptical it's the same thing
exactly than what IDE spec means.

....
> According to the current setting (mdma2), I should get about 16 MB/s
> (the hard disk specified 'sustained data transfer rate' is >40 MB/s).
> However with a 2.4 kernel I only get 3.3 MB/s and with a 2.6 kernel
> I get just about 3.0 MB/s, which suggests it's running in 'pio0' mode.

If the IDE controller is NOT prefetching data into a local buffer,
I don't think it will be able to efficiently burst data across
the PCI bus.

> Also there is a significant CPU load whenever I do a read/write access to
> the IDE hard disk (compared to the CPU load when I access the SCSI disks),
> which might be another indication that it's still using PIO and not DMA.

Yes, that's probably a better indicator.

> Is 
>   'hdparm -c 1' (enable 32bit I/O)
> and
>   'hdparm -u 1' (unmasq_irq)
> useful/implemented on PA-RISC?

I don't think this is platform specific.
I expect both of those to be card/driver specific.

grant
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Xref: news.gmane.org gmane.linux.ports.parisc:21800

SMP is one of the big remaining pieces that needs to get fixed in 2.6.
Does anyone want to help look at it?

This is what I saw yesterday while trying latest 2.6 on a SMP a500
(2x450MHz).

While booting up, the system "hangs". TOC shows that it died in
parisc_terminate with not much useful information. When I instrumented
the startup sequence with printk, it seemed to stop in init_idle when
setting the schedule flag on the idle task. It didn't make much sense to
me that set_bit() would die though....

after some more digging around, it looks like it's actually dying in:
kernel_thread()->do_fork()->copy_process()->dup_task_struct()->alloc_
task_struct()->kmem_cache_alloc() 

when starting the init thread.

kmem_cache_alloc() has this bit of code:

        local_irq_save(save_flags);
        ac = ac_data(cachep);
        if (likely(ac->avail)) {

and ac was NULL. ac_data(cachep) is cachep->array[smp_processor_id()]

it looks like smp_processor_id() was returning the wrong value (8 in my
test), so it was picking up an uninitialized per-cpu cache.

i forced smp_processor_id() = 0 in that function, and it gets a bit
further till schedule(), and then it dies in there. I'm not quite sure
where/why it dies. then i fell asleep :)

here's one "trick" i used yesterday to debug the
parisc_terminate()-not-giving-much-info problem.... basically in some
cases printk() stops working (perhaps interrupts are disabled?), so the
only thing we can do is rely on TOC and "ser pim". I replaced
parisc_terminate() with this:

void parisc_terminate(char *msg, struct pt_regs *regs, int code,
          unsigned long offset)
{
    volatile register unsigned long x = regs->iaoq[0];
    volatile register unsigned long y = *(unsigned long *)(regs->gr[30]-16);
    for (;;) ;
}

if you do a disassembly on traps.o, you'll see that now you should get
r19 = regs->iaoq[0] 
r20 = a stack location which, in this case, corresponds to the return
      pointer of kmem_cache_alloc()

now when you do a TOC dump you can see where the fault actually occured.

you should be able to do this with a few registers at a time (i only
tried 2-3 at a time). Look at the disassembly dump to figure out what
goes where... it's a bit of a pain, but might be useful still.... 

anyway, it looks like possibly some things are not setup properly in the
init_thread_union structure? I don't know why smp_processor_id() (which
is current_thread_info()->cpu) would return the wrong value. Earlier in
the boot the value seems to be correct....

i won't have time to look at this more for a couple of weeks....
hopefully someone else will figure it out in the meantime? :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: Re: [parisc-linux] Re: 2.6.4-rc1-pa3 siimage/NS87415 IDE progess (and
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On Sun, Jul 11, 2004 at 04:34:39PM -0700, Randolph Chung wrote:

> > don't have an IDE drive to try it with, but if it works, shouldn't it be
> > done as a pcibios fixup instead? We already have a fixup routine in
> > drivers/parisc/superio.c:superio_fixup_pci(), so you can probably just
> > add it there.
> 
> i.e. (the progif write was removed since it's redundant):
> 
> Index: drivers/parisc/superio.c
> ===================================================================
> RCS file: /var/cvs/linux-2.6/drivers/parisc/superio.c,v
> retrieving revision 1.9
> diff -u -p -r1.9 superio.c
> --- drivers/parisc/superio.c	18 May 2004 13:08:56 -0000	1.9
> +++ drivers/parisc/superio.c	11 Jul 2004 23:33:06 -0000
> @@ -482,6 +482,16 @@ void superio_fixup_pci(struct pci_dev *p
>  	pci_write_config_byte(pdev, PCI_CLASS_PROG, pdev->class);
>  
>  	pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
> +
> +	/* IODC clobbers the CTRL registers with:
> +	 * CTRL1 = 0xf0 = "ATAPI buffer mode (no prefetching)" for everyone
> +	 * CTRL2 = 0x03 = mask chan1/2 interrupts
> +	 * CTRL3 = 0x00 = "disable prefetch buffer"/"Master Wait States"
> +	 */
> +	pci_write_config_byte(pdev, 0x40, 0xf0); /* IDE_CTRL1 */
> +	pci_write_config_byte(pdev, 0x41, 0x00); /* IDE_CTRL2 */
> +	pci_write_config_byte(pdev, 0x42, 0x00); /* IDE_CTRL3 */
> +
>  	printk("PCI: Enabled native mode for NS87415 (pif=0x%x)\n", prog);
>  }
>  
> 
> works fine on my c3750 with a cdrom drive too! Great job Grant :)

Tested above patch, but unfortunately it didn't work for me,
the NS87415 still doesn't use DMA (or so it seems, at least it's
still the 3MB/s instead of the expected 30-40MB/s).

hdparm -c /dev/hda showed DMA was turned on, and I even set it on
again (hdparm -c 1), just to be sure, but it didn't make any
difference in performance :(

Thanks,
   Max


PS: shall I try Grant's patch aswell?
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Subject: Re: [parisc-linux] Re: 2.6.4-rc1-pa3 siimage/NS87415 IDE progess (and
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Sorry, there was a typo:

On Mon, Jul 12, 2004 at 04:37:52AM +0100, xam wrote:
>
> hdparm -c /dev/hda showed DMA was turned on, and I even set it on
> again (hdparm -c 1), just to be sure, but it didn't make any
> difference in performance :(

I meant 'hdparm -d' of course ...

BTW, what are the supported DMA modes of the NS87415?
The kernel just reports this:

  DMA zone: 262144 pages, LIFO batch:16
    ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:pio, hdd:pio
  hda: 234441648 sectors (120034 MB) w/2048KiB Cache, CHS=16383/255/63, (U)DMA
          
I suppose BM-DMA means BusMaster-DMA, but does the NS87415 support any
Ultra-DMA modes, or only Multi-Word DMA?
A 'hdparm -i /dev/hda' says this about the hdd settings/capabilities:

  PIO modes:  pio0 pio1 pio2 pio3 pio4
  DMA modes:  mdma0 mdma1 *mdma2
  UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5

Here's the performance table for pio/mdma/udma:

   pio0    3.33 MB/s
   pio1    5.22 MB/s
   pio2    8.33 MB/s
   pio3   11.11 MB/s
   pio4   16.67 MB/s
  mdma0    4.16 MB/s
  mdma1   13.33 MB/s
  mdma2   16.67 MB/s
  mdma3   33.33 MB/s
  udma0   16.67 MB/s
  udma1   25.00 MB/s
  udma2   33.33 MB/s
  udma3   44.44 MB/s
  udma4   66.67 MB/s
  udma5  100.00 MB/s
  udma6  133.33 MB/s

According to the current setting (mdma2), I should get about 16 MB/s
(the hard disk specified 'sustained data transfer rate' is >40 MB/s).
However with a 2.4 kernel I only get 3.3 MB/s and with a 2.6 kernel
I get just about 3.0 MB/s, which suggests it's running in 'pio0' mode.

Also there is a significant CPU load whenever I do a read/write access to
the IDE hard disk (compared to the CPU load when I access the SCSI disks),
which might be another indication that it's still using PIO and not DMA.


Final question:

Is 
  'hdparm -c 1' (enable 32bit I/O)
and
  'hdparm -u 1' (unmasq_irq)
useful/implemented on PA-RISC?


Greetings,
   Max
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Subject: Re: [parisc-linux] Re: 2.6.4-rc1-pa3 siimage/NS87415 IDE progess (and
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On Mon, Jul 12, 2004 at 10:05:34AM -0600, Grant Grundler wrote:

> On Mon, Jul 12, 2004 at 04:37:52AM +0100, M. Grabert wrote:
> > Tested above patch, but unfortunately it didn't work for me,
> 
> The rest of your post in fact suggests it did.
> Ie you should no longer need to "sea" at the boot prompt.

OOOooOOoooopps!
This isse was resolved by Randolph, back in March, 9th:

|>  ...just add in this bit in the fixup routine:"
|>  
|>   +  pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);                                                                               
|>   +  printk("PCI: Enabled native mode for NS87415 (pif=0x%x)\n", prog); 

The next day (March, 10th) I sent you and Randolph a success report
after you both sent me patches:

|>  So far the only bugs remaining are the "lost interrupt" problems                
|>  for the promise/siimage drivers and getting DMA really working                  
|>  for the NS87415.

Those patches obviously made it into the CVS a couple the same day:
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2004-March/033894.html
NS87415 onboard IDE + hard drivers worked since then, starting with the
(stock) 2.6.4-rc3-pa6 kernel.

Since everybody (Randolph, you, me) always replied privately in this
thread and we all didn't CC: the p-l, there was no record that
the 'mystery bug' had been fixed already.

> > the NS87415 still doesn't use DMA (or so it seems, at least it's
> > still the 3MB/s instead of the expected 30-40MB/s).
> > 
> > hdparm -c /dev/hda showed DMA was turned on, and I even set it on
> > again (hdparm -c 1), just to be sure, but it didn't make any
> > difference in performance :(
> 
> This patch makes no attempt at changing existing DMA behaviors.
> It's likely the NS87415 code needs to twiddle the "Prefetch Mode"
> bits for something other than ATAPI (no prefetch) to get
> better performance.

That's where I misunderstood you: I thought you patch was trying
to fix DMA.

BTW, I should have CC'ed my success report to p-l (back in March), maybe
this way you would have noticed/discovered more easily that this
particular bug has been fixed.

I hope my bug report was not the only reason what inspired you
to make this patch, otherwise it would have been an awful waste of
time :-/


Greetings,
   Max
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Subject: Re: [parisc-linux] Re: 2.6.4-rc1-pa3 siimage/NS87415 IDE progess (and
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> That's where I misunderstood you: I thought you patch was trying
> to fix DMA.

well, it does make a siginificant difference on my machine with a CD-ROM

If I do:
hdparm -d 1 /dev/cdrom
hdparm -t /dev/cdrom
I get about 2.4MB/sec

whereas before i used to only get ~1MB/s

which is not to say it's very fast or near what it probably should be
able to do, but it's definitely faster :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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On Mon, Jul 12, 2004 at 10:14:44AM -0600, Grant Grundler wrote:

> On Mon, Jul 12, 2004 at 05:19:35AM +0100, M. Grabert wrote:
> > BTW, what are the supported DMA modes of the NS87415?
> 
> Hopefully the ns87415 data sheet will specify that.
> 
> > I suppose BM-DMA means BusMaster-DMA, but does the NS87415 support any
> > Ultra-DMA modes, or only Multi-Word DMA?
> 
> DMA from the IDE controller are just regular PCI transactions.
> There is no such thing as Ultra-DMA for PCI.

I see what you mean. Yes, sorry for mixing up these terms in
the same sentence. But it seems you understood what I wanted to say ;)

[...]

> If the IDE controller is NOT prefetching data into a local buffer,
> I don't think it will be able to efficiently burst data across
> the PCI bus.

Ah, and you fixed prefetching with the latest patch? Now I understand
the issue ...

> > Also there is a significant CPU load whenever I do a read/write access to
> > the IDE hard disk (compared to the CPU load when I access the SCSI disks),
> > which might be another indication that it's still using PIO and not DMA.
> 
> Yes, that's probably a better indicator.
>
> > Is 
> >   'hdparm -c 1' (enable 32bit I/O)
> > and
> >   'hdparm -u 1' (unmasq_irq)
> > useful/implemented on PA-RISC?

Well, it doesn't change the performance in any way.

> I don't think this is platform specific.
> I expect both of those to be card/driver specific.

The first, yes. But I'm not sure about the second (unmask_irq).


Thanks,
   Max
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On Llu, 2004-07-12 at 17:14, Grant Grundler wrote:
> > Is 
> >   'hdparm -c 1' (enable 32bit I/O)
> > and
> >   'hdparm -u 1' (unmasq_irq)
> > useful/implemented on PA-RISC?
> 
> I don't think this is platform specific.
> I expect both of those to be card/driver specific.

Both are implemented in the core code. In the case of -c 1 it isnt going
to do anything relevant. -u 1 ought to have little effect in DMA modes

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Subject: Re: [parisc-linux] Re: 2.6.4-rc1-pa3 siimage/NS87415 IDE progess (and
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On Mon, Jul 12, 2004 at 09:56:32PM -0600, Grant Grundler wrote:
> You need to read the 87560.pdf file that is available from
> the parisc-linux.org Tech Docs page.

Sorry - double brainfart.
I meant PC87415.pdf file and I just added it.

grant
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On Mon, Jul 12, 2004 at 07:51:32PM +0100, M. Grabert wrote:
> > If the IDE controller is NOT prefetching data into a local buffer,
> > I don't think it will be able to efficiently burst data across
> > the PCI bus.
> 
> Ah, and you fixed prefetching with the latest patch? Now I understand
> the issue ...

I don't think so. I think I've got the various parts of the IDE
controller to NOT prefetch. You need to read the 87560.pdf file
that is available from the parisc-linux.org Tech Docs page.
Then you'll know as much as I do about this IDE controller.
I'm really clueless about how IDE works internally.

grant
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On Mon, Jul 12, 2004 at 07:39:44PM +0100, M. Grabert wrote:
> OOOooOOoooopps!
> This isse was resolved by Randolph, back in March, 9th:
...
> Those patches obviously made it into the CVS a couple the same day:
> http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2004-March/033894.html
> NS87415 onboard IDE + hard drivers worked since then, starting with the
> (stock) 2.6.4-rc3-pa6 kernel.

yes - I remember those. But I thought that was just to get the
 controller working without DMA.

> That's where I misunderstood you: I thought you patch was trying
> to fix DMA.

Well, it clearly using DMA on the C3600 I was testing.
Using PIO modes I only got 1MB/s. With DMA I was getting ~2.4MB/s.
(using a 32X CD-ROM reading a Debian hppa-linux install CD).

> I hope my bug report was not the only reason what inspired you
> to make this patch, otherwise it would have been an awful waste of
> time :-/

No - I don't think it was. My hack suggests the ns87415 driver
is incomplete in it's support for ATAPI vs other IDE devices.

grant
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Subject: [parisc-linux] Cannot access '/dev/pts/143862': Value too large for
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I'm using the "screen" command regulary on HPPA with a 2.6 kernel, but sometimes I get the error message:

d036493@hw1306:~ > screen
Cannot access '/dev/pts/143862': Value too large for defined data type

What's the problem ?
Can screen not cope with the "high" (>16bit) pid/uid values ?
If yes, does screen needs to rebuild and could someone ask to rebuild it ?

Thanks,
Helge
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Subject: Re: [parisc-linux] Cannot access '/dev/pts/143862': Value too large for defined data type
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> d036493@hw1306:~ > screen
> Cannot access '/dev/pts/143862': Value too large for defined data type
> 
> What's the problem ?
> Can screen not cope with the "high" (>16bit) pid/uid values ?
> If yes, does screen needs to rebuild and could someone ask to rebuild it ?

I don't know, but I see this with ssh too...

pippin[12:20] ~% ssh legolas
Linux legolas 2.6.7-pa13 #78 Sun Jul 11 17:02:38 PDT 2004 parisc GNU/Linux
You have new mail.
fstat: Value too large for defined data type

randolph
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Randolph Chung
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http://www.tausq.org/



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Subject: [parisc-linux] spinlock debug
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Thibaut,

I'm just looking at your debuglocks stuff again. It doesn't look right
to me.

	/* Do the actual locking */
	/* <T-Bone> ggg: we can't get stuck on the outter loop?
	 * <ggg> T-Bone: We only hit the outer loop when the data
	 *	changes and the first time. We can hit the outer one
	 *	alot if multiple CPUs are constantly racing for a lock
	 *	and the backplane is NOT fair about which CPU sees
	 *	the update first. But it won't hang since every failed
	 *	attempt will drop us back into the inner loop and
	 *	decrement `stuck'.
	 * <ggg> K-class and some of the others are NOT fair in the HW
	 * 	implementation so we could see false positives.
	 * 	But fixing the lock contention is easier than
	 * 	fixing the HW to be fair.
	 */
	a = __ldcw_align(lock);
	while ((__ldcw(a) == 0))
		while ((*a == 0) && --stuck);

I don't think the comment is correct. Lets say someone is holding the
lock when you enter this code, your outer loop test always succeeds, and
you spin on the inner loop until stuck == 0. At that point you go back
to the outer loop, the lock is still held, so you go back to the inner
loop and continue spinning, and you never timeout the lock.

you probably need a "&& stuck > 0" in the outer loop.

for some reason this still doesn't work for me though, but i don't see 
why :( with a TOC i see we are spinning and i never see the printk.
it might be that it's actually printing and just that the output is not
going to the console... dunno

what am i missing? :)
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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> 	a = __ldcw_align(lock);
> 	while ((__ldcw(a) == 0))
> 		while ((*a == 0) && --stuck);

There's another race in the code. Suppose stuck becomes 0, so you go
back to the outer loop, and you manage to acquire the lock, then you
will hit the next if:

     52         if (unlikely(stuck <= 0)) {
     53                 printk(KERN_ERR
     54                         "%s:%d: spin_lock(%s/%p) stuck in %s at %p(%d)"
     55                         " owned by %s:%d in %s at %p(%d)\n",
     56                         base_file, line_no, lock->module, lock,
     57                         current->comm, inline_pc, cpu,
     58                         lock->bfile, lock->bline, lock->task->comm,
     59                         lock->previous, lock->oncpu);
     60                 stuck = INIT_STUCK;
     61                 printed = 1;
     62                 goto try_again;
     63         }

so you erroneously detect that the lock was not taken, print an error,
and go back to get the lock again. now you will not be able to acquire
the lock and you are deadlocked.

randolph
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On Tue, Jul 13, 2004 at 09:29:10PM -0700, Randolph Chung wrote:
> I don't think the comment is correct.

The comment is *mostly* correct.
It just doesn't get all the exit criteria right. :^)

> Lets say someone is holding the
> lock when you enter this code, your outer loop test always succeeds, and
> you spin on the inner loop until stuck == 0. At that point you go back
> to the outer loop, the lock is still held, so you go back to the inner
> loop and continue spinning, and you never timeout the lock.

Yup - good catch.

> you probably need a "&& stuck > 0" in the outer loop.

Yes. This should be sufficient:
        a = __ldcw_align(lock);
        while ((__ldcw(a) == 0) && stuck)
                while ((*a == 0) && --stuck);

> for some reason this still doesn't work for me though, but i don't see 
> why :( with a TOC i see we are spinning and i never see the printk.
> it might be that it's actually printing and just that the output is not
> going to the console... dunno

Do you happen to know which lock it's spinning on?
That should at least reduce the subset of code we need to look at.

grant
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> Do you happen to know which lock it's spinning on?
> That should at least reduce the subset of code we need to look at.

Nope, which is why i wanted to get the printk output :-)

randolph
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Thibaut, thanks for fixing the debug locks.

Has anyone else tried this on a SMP config? For some reason with
CONFIG_DEBUG_SPINLOCKS=y, i cannot boot a kernel, but without the debug
spinlocks it works fine (well, it gets further). 

randolph
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On Wed, Jul 14, 2004 at 05:24:23PM +0000, Joel Soete wrote:
...
> 19. Unknown machine at 0xfffffffffed25000 [37] { 0, 0x0, 0x5d3, 0x00000 }
...
> Any idea where I have to look for to change it?

It needs to be added to arch/parisc/kernel/hardware.c.
see hp_hardware_list[] declaration :^)

We just need to know what the proper name for the CPU is.

grant
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: [parisc-linux] mmap and GCC precompiled headers
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Precompiled headers (PCH) seem to be broken at the moment on hppa-linux
on at least certain kernel versions (2.6.6-pa4) because of the following
assumption in the PCH implementation:

   This version assumes that the kernel honors the START operand of mmap
   even without MAP_FIXED if START through START+SIZE are not currently
   mapped with something.  */

int
mmap_gt_pch_use_address (void *base, size_t size, int fd, size_t offset)
{

Anybody have any ideas as to whether parisc-linux can support the
above?  It seems to break down for large PCH files.  START isn't
honored under hpux either.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] mmap and GCC precompiled headers
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On Thu, Jul 15, 2004 at 04:25:01PM -0400, John David Anglin wrote:
> Precompiled headers (PCH) seem to be broken at the moment on hppa-linux
> on at least certain kernel versions (2.6.6-pa4) because of the following
> assumption in the PCH implementation:
> 
>    This version assumes that the kernel honors the START operand of mmap
>    even without MAP_FIXED if START through START+SIZE are not currently
>    mapped with something.  */
> 
> int
> mmap_gt_pch_use_address (void *base, size_t size, int fd, size_t offset)
> {
> 
> Anybody have any ideas as to whether parisc-linux can support the
> above?  It seems to break down for large PCH files.  START isn't
> honored under hpux either.

That's an unwarranted assumption.  If they want that, they need to
specify MAP_FIXED.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] mmap and GCC precompiled headers
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> On Thu, Jul 15, 2004 at 04:25:01PM -0400, John David Anglin wrote:
> > Precompiled headers (PCH) seem to be broken at the moment on hppa-linux
> > on at least certain kernel versions (2.6.6-pa4) because of the following
> > assumption in the PCH implementation:
> > 
> >    This version assumes that the kernel honors the START operand of mmap
> >    even without MAP_FIXED if START through START+SIZE are not currently
> >    mapped with something.  */
> > 
> > int
> > mmap_gt_pch_use_address (void *base, size_t size, int fd, size_t offset)
> > {
> > 
> > Anybody have any ideas as to whether parisc-linux can support the
> > above?  It seems to break down for large PCH files.  START isn't
> > honored under hpux either.
> 
> That's an unwarranted assumption.  If they want that, they need to
> specify MAP_FIXED.

The problem with MAP_FIXED is that it replaces any previous mappings.
I believe that the code in question doesn't want to do that.  It
simply wants to fallback to not using PCH if the suggested value
for START doesn't work out.

At this point, I don't know if there is another mapping but I suspect
there isn't as the code tries to load the PCH file quite early.

Obviously, this isn't a problem on lots of other ports or everybody
would be screaming.

We can have hppa specific implementations of mmap_gt_pch_get_address
and mmap_gt_pch_use_address.  Under hpux, mmap_gt_pch_use_address was
failing because mmap returned a somewhat smaller memory address.

The address dependencies in the PCH file need to be fixed, but that's
non trivial.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Obviously, this isn't a problem on lots of other ports or everybody
> would be screaming.

The reason for this is that the PA has strict aliasing requirements 
for virtual memory aliases, so we have to jump through hoops to make 
sure we don't create incorrectly aliased mappings. I'm afriad there's
not much that we can do about this.

randolph
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On Thu, Jul 15, 2004 at 05:34:02PM -0400, John David Anglin wrote:
> > That's an unwarranted assumption.  If they want that, they need to
> > specify MAP_FIXED.
> 
> The problem with MAP_FIXED is that it replaces any previous mappings.
> I believe that the code in question doesn't want to do that.  It
> simply wants to fallback to not using PCH if the suggested value
> for START doesn't work out.

Oh, that's easy enough.  mmap() returns the address it got mapped at,
so just compare it to the address you asked for and decline to use PCH
in that case.

> Obviously, this isn't a problem on lots of other ports or everybody
> would be screaming.

Sparc and MIPS should have difficulties too...

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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> However, when GCC tries to remap the PCH file to this location, it
> sometimes fails.  This is currently a fatal error (i.e., it does not
> fallback as described above).  This needs looking at.  Almost all
> the libstdc++ tests failed in the last build that I did.  I think if
> it successfully loads the PCH file and finds that it's not valid,
> it does fallback.

do you mean that, when the pch file is created, it was mmaped to some
address, and that address is written to the file. when the pch file is
read later on for another compile, it tries to mmap it to the same
location, and if it cannot, then it fails?

there's obviously a performance penalty, but is this an option (not very
sure it will work, but i think it might)?

1. mmap the file to addr1, where addr1 is any address returned by the
   kernel
2. do a MAP_PRIVATE anonymous mmap to the desired location addr2 (this 
   is more likely to be honoured by the kernel....)
3. memcpy the data from addr1 to addr2

obviously this assumes you are not changing the pch data...

randolph
-- 
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> On Thu, Jul 15, 2004 at 05:34:02PM -0400, John David Anglin wrote:
> > > That's an unwarranted assumption.  If they want that, they need to
> > > specify MAP_FIXED.
> > 
> > The problem with MAP_FIXED is that it replaces any previous mappings.
> > I believe that the code in question doesn't want to do that.  It
> > simply wants to fallback to not using PCH if the suggested value
> > for START doesn't work out.
> 
> Oh, that's easy enough.  mmap() returns the address it got mapped at,
> so just compare it to the address you asked for and decline to use PCH
> in that case.

Well, that's exactly what it does.  However, it doesn't work.  The
start address is selected as follows:

/* Default version of HOST_HOOKS_GT_PCH_GET_ADDRESS when mmap is present.
   We temporarily allocate SIZE bytes, and let the kernel place the data
   wherever it will.  If it worked, that's our spot, if not we're likely
   to be in trouble.  */

However, when GCC tries to remap the PCH file to this location, it
sometimes fails.  This is currently a fatal error (i.e., it does not
fallback as described above).  This needs looking at.  Almost all
the libstdc++ tests failed in the last build that I did.  I think if
it successfully loads the PCH file and finds that it's not valid,
it does fallback.

>>From what you and Randolph have said, PCH in its current incarnation
isn't going to work on hppa.  If it works, I belive that it provides
a significant performance enhancement in compiling c++ code.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, 2004-07-15 at 22:19, Grant Grundler wrote:
> Hi,
> www.parisc-linux.org crashed earlier today running a 2.4.25 kernel.
> I happened to be around and recovered the console.
> Appended below in case someone wanted to poke at it a bit or can
> tell me this is a known problem.

It looks like a usual ext3 panic precipitated by a disc I/O error.  What
were the SCSI logs before this?

James


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> > However, when GCC tries to remap the PCH file to this location, it
> > sometimes fails.  This is currently a fatal error (i.e., it does not
> > fallback as described above).  This needs looking at.  Almost all
> > the libstdc++ tests failed in the last build that I did.  I think if
> > it successfully loads the PCH file and finds that it's not valid,
> > it does fallback.
> 
> do you mean that, when the pch file is created, it was mmaped to some
> address, and that address is written to the file. when the pch file is
> read later on for another compile, it tries to mmap it to the same
> location, and if it cannot, then it fails?

Yes.  I believe that it has to map it to the same address as when
it was created because the file contains pointers to addresses in
the PCH data that otherwise need adjustment.

The initial address is one selected by the kernel in a call to mmap
with START=0.  This is used to generate the PCH file.  Then, when
the program tries to read the pch file using the START address
returned by the kernel when the PCH file was built, the kernel
sometimes doesn't honor this start address.

I'm thinking that the current code should use or fallback to
trying MAP_FIXED when it tries to read the PCH file as it
currently fails with a fatal error if the region doesn't map
successfully.  If it's possible for there to be pages mapped
in the region needed for the PCH data, then the mmap call to
map the PCH file just isn't going to be reliable.  I doubt
that's actually happening.

What I think is happening is that the kernel doesn't try very
hard to honor START without MAP_FIXED.  There may be some subtle
issues dependent on the size of the file.  There is a configure
test in libstdc++ which attempts to see whether to enable
generating a PCH header file for libstdc++.  This started in
GCC 3.4.  The configure test always passes on both linux and
hpux.  However, I recently had on v3 testsuite run in which
all the tests failed because the libstcd++ PCH file couldn't
be read back.

As I noted previously, the downside to using MAP_FIXED is any
previous mapping get replaced.  Replacing a previous mapping
could lead to all kinds of wierd problems.  GCC makes rather
extensive use of mmap, so I can understand why the code tries
to avoid using MAP_FIXED.  It would be a significant overhead
to keep track of all mmapped regions.

> there's obviously a performance penalty, but is this an option (not very
> sure it will work, but i think it might)?
> 
> 1. mmap the file to addr1, where addr1 is any address returned by the
>    kernel
> 2. do a MAP_PRIVATE anonymous mmap to the desired location addr2 (this 
>    is more likely to be honoured by the kernel....)

It already uses MAP_PRIVATE.  Are anonymous mmaps more likely to
honor the START parameter?  If so, then we could use mmap to allocate
the region and just read the data into the region.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Fri, Jul 16, 2004 at 08:14:38PM +0200, Arnau Bria Ramirez wrote:
> >Normally yes. See "Bug Reporting" link off of www.parisc-linux.org:
> >	http://www.parisc-linux.org/faq/kernelbug-howto.html
> 
> Ok, but as I have to copy it by hand I ask before ....

ah...you might try with serial console.
It avoids many of the problems we've had with the IO subsystem.
Just disconnect the keyboard/mouse and connect a serial cable.
Another box will be needed to capture the serial console output
in case there are other problems.

grant
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On Fri, Jul 16, 2004 at 05:55:45PM -0400, Peter E. Popovich wrote:
> so, i got a 712/60, and got debian installed, and it all seemed to work 
> fine.
> 
> then i tried to use the serial console hack described at:
> http://www.pateam.org/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/consoles.html
> 
> something went wrong, because now, the system doesn't boot.  it appears to 
> be dumping 0xNNNN diagnostic codes out the serial port.
> 
> "no worries", i say.  "they're cheap.  I'll just buy another..."

You can resurrect the 712's using a dagger card.
Not easy to find one though...

> so, i got a 712/80, but it's running version 1.6 of the firmware. 
> there's a version 2.3 patch, but its instructions tell you to write the 
> patch to tape and boot from the tape.  (boot from tape ?!?)
> http://ftp.parisc-linux.org/kernels/712/PF_C7120023.txt

The lifimage can be booted via the network or hard disk as well.
Just setup a bootp/dhcp server to boot the lifimage.
Or dd the lifimage to the HD and boot from the HD.

> so, i've got some questions.  neither have anything todo with linux, but 
> i'm not sure where else to turn for help with hppa...
> 
> first: reading the history of this list, apparently, i can fix the 712/60 
> with a "dagger card".  for the life of me, i've got no clue what that is, 
> or how i could acquire one.

Yes. It's a special card that can be installed in the 712
and can read/write the main firmware.

> second: is there a way to update the firmware in a 712/80 without a tape 
> drive?  is there a way to update the firmware in a 712/80 without either a 
> tape or floppy drive?  (if i need to slap a floppy drive in, will a 
> standard PC floppy drive work?)
> 
> third: will debian run stably on a 712/80 with firmware version 1.6?

probably. But you'd have to read the 2.3 firmware errata to know
what bugs are fixed.

grant
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Subject: Re: [parisc-linux] 712/60, 712/80, serial console, firmware update,
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On Fri, 16 Jul 2004 17:55:45 -0400 (EDT)
"Peter E. Popovich" <peter@popovich.net> wrote:

> so, i got a 712/60, and got debian installed, and it all seemed to work 
> fine.
> 
> then i tried to use the serial console hack described at:
> http://www.pateam.org/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/consoles.html
> 
> something went wrong, because now, the system doesn't boot.  it appears
> to be dumping 0xNNNN diagnostic codes out the serial port.

This could be normal ;)

Wait a bit, and among the 0xNNN you might eventually see "Starting boot
process" at some point. Then you'll saved. If you followed EXACTLY what
was said in the howto, it should work. We've got several of these tiny
beasts here booted in serial console (even our MySQL server is a 712!) ;)

Besides, it is mentionned that this is a hat trick, and
therefore,_dangerous_...

HTH,


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/

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On Friday 16 July 2004 09:59 am, James Bottomley wrote:
> On Thu, 2004-07-15 at 22:19, Grant Grundler wrote:
> > Hi,
> > www.parisc-linux.org crashed earlier today running a 2.4.25 kernel.
> > I happened to be around and recovered the console.
> > Appended below in case someone wanted to poke at it a bit or can
> > tell me this is a known problem.
>
> It looks like a usual ext3 panic precipitated by a disc I/O error.  What
> were the SCSI logs before this?

yeah, the only time ive seen those kind of errors are when there was actual 
hardware failure ... a reboot would 'remedy' the situation :)

ive seen this on x86 (when the hd loses power temporarily) and on hppa (when 
using a semi-crappy external scsi disc)
-mike
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On Sat, 17 Jul 2004, Thibaut VARENE wrote:
>> then i tried to use the serial console hack described at:
>> http://www.pateam.org/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/consoles.html
>>
>> something went wrong, because now, the system doesn't boot.  it appears
>> to be dumping 0xNNNN diagnostic codes out the serial port.
>
> This could be normal ;)
>
> Wait a bit, and among the 0xNNN you might eventually see "Starting boot
> process" at some point. Then you'll saved. If you followed EXACTLY what
> was said in the howto, it should work. We've got several of these tiny
> beasts here booted in serial console (even our MySQL server is a 712!) ;)
>
> Besides, it is mentionned that this is a hat trick, and
> therefore,_dangerous_...

i'm fairly sure i did it letter-perfect, but i'm human, so i may not have.

waiting a bit doesn't seem to be the issue.  i've waited 10+ minutes, 
multiple times.  the output appears to be consistent:

0x04.1081
0x04.1080
0x04.1082
0x04.1086
0x04.1087
0x04.108A
0x04.108B
0x04.108C
0x04.1083
0x04.10D1
0x04.10D2
0x04.2090
0x04.2091
0x04.209F
0x04.2096
0x04.2094
0x04.2095
0x06.C201
0x04.10DB   <--- there's a pause here
0x04.10D7
0x04.10D8
0x04.2097
0x04.2098
0x04.2099
0x04.209A
0x04.209B
0x04.1091
0x04.1092
0x04.1093
0x04.1094
0x04.1095
0x04.1096
0x04.1090
0x04.108D
0x04.10D4
0x04.10D9
0x04.4080
0x04.4081
0x04.4082
0x04.8300
0x04.8322
0x04.8326
0x04.8328
0x04.832A
0x04.832B
0x04.832C
0x04.8321
0x04.8301
0x02.1009

it'd be interesting to see what it *should* look like.
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From: Xianjie Zhang <xzhang@cup.hp.com>
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Subject: [parisc-linux] J7000: Problem to Install Kernel and Driver Modules
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Hi, there,

I am trying to install Linux on a HP J-7000 machine.
I burned the Debian 3.0 R1 CD 1 and 2, boot the system to the following 
screen:
===========================================
   Debian GNU/Linux Installation Main Menu
 You've mounted your root filesystem.  You may initialize and
 mount additional filesystems, or you may go on to install  
  the operating system kernel and the modules.         
  Next      : Install Kernel and Driver Modules    
 Alternate : Initialize a Linux Partition             
 Alternate1: Mount a Previously-Initialized Partition  
 Configure the Keyboard                                x    x             
x x Partition a Hard Disk                                 x    
x              
x x Initialize and Activate a Swap Partition              x    
x              
x x Activate a Previously-Initialized Swap Partition      x    
x             
 x x Do Without a Swap Partition                           x    
x              
x x Initialize a Linux Partition                          x    
x             
x x Mount a Previously-Initialized Partition              x    
x             
 x x Unmount a Partition                                   x    
x               x
===========================================

So I selected to " Install Kernel and Driver Modules ". For the next 
screen, I selected cdrom. Then I got the following:

"Please place the first Debian CD-ROM in the CD-ROM drive. "

Since the CD is already in place, I select continue. Now the screen says:
=================
             Mount failed
The CD-ROM was not mounted successfully.      
                        <Continue>                         
================

I tried to eject the CD and insert it again, NO success.
I also tried to insert the number 2 CD, still the same failure.

Did anyone see this before?  (The mail archive is huge, I did a cursory 
search, but failed to find an answer.)
Since the system can boot from the CD, I suppose it should not have any 
problem to mount it. What is wrong with it?

(Is it because that the CD-ROM has already been mounted? and nobody 
umount it?)

Thanks and regards,

Xianjie



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From: "Jesse Dougherty" <jesse@cypress-tech.com>
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Subject: [parisc-linux] <Plug> Cheap HP Visualize J5000's on Ebay
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Hi there, just a quick note to the list that our company has several
inexpensive HP 9000/J5000 Visualize workstations listed on ebay. The ebay
item number is 5710236441 or following the link below:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=51234&item=5710236441


Thanks
Jesse Dougherty
Cypress Technology, Inc
Re-Sellers of HP 3000/9000 products
jesse@cypress-tech.com

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> On Sun, Jul 25, 2004 at 01:33:38PM -0500, Ivan Petrovich wrote:
> > This is not a parisc-linux question, though it is somewhat related.
> > I am trying to build a i386-linux to hppa-hpux (not hppa-linux)
> > cross-compiler. I have read the parisc-linux FAQ, but found it to not
> > be useful for my application.
> 
> For the linker, you'll need the hpux linker which was ported in the early
> days of the port.  Try http://cvs.parisc-linux.org/obsolete/linker/ but
> be warned nobody's touched it for a number of years.  You may also wish
> to review old postings to this list (say, 1999/2000) before we ported
> the kernel to be ELF.

I haven't tried this code under linux but I have hacked on it a bit
under hpux.  As is, it is somewhat broken and I don't think you
will be able to create shared libraries with it.  It predates the
patches that HP applied to fix the handling of secondary definition
symbols and initializers.  As a result, it is not going to work for
hpux11 targets with gcc 3.3 or later.  However, it should work for
hpux10 targets even with gcc 3.5 (prerelease) versions as secondary
definition symbols aren't used under hpux10.

Collect2 uses chatr to determine library dependencies for hpux10.
This is used to build tables of initializers and finalizers.  There
is no port of chatr to linux, so this will be a problem.  You will
have to create an equivalent tool under linux to make this work.

You will also have to setup an appropriate build and link environment.
It would be easier to setup a 64-bit hpux build environment as you can
use ld from binutils for hppa64-hpux.

I don't know of anyone that has successfully setup a cross to hppa-hpux
because of the problems in handling the SOM object format in linking.
How difficult this is going to be depends on what you want to build.
Doing C++ will be harder than C.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] expect hang with 2.6.7-pa14 #1
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I tried 2.6.7-pa14 on a c3750.  There is a problem with expect running
the gcc testsuite.  It apparently hangs waiting for a signal:

GNU gdb 2004-05-27-cvs
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "hppa-unknown-linux-gnu"...(no debugging symbols found)...Using host libthread_db library "/lib/libthread_db.so.1".

Core was generated by `expect -- /home/dave/opt/gnu/share/dejagnu/runtest.exp --tool gfortran'.
Program terminated with signal 6, Aborted.
...
(gdb) bt
#0  0x4068a754 in expErrnoMsgSet () from /usr/lib/libexpect5.41.so.1
#1  0x409b0de0 in __pthread_wait_for_restart_signal ()
   from /lib/libpthread.so.0
#2  0x40100af8 in TclpFree () from /usr/lib/libtcl8.4.so.0
#3  0x409b281c in __pthread_alt_lock () from /lib/libpthread.so.0
#4  0x409af480 in pthread_mutex_lock () from /lib/libpthread.so.0
#5  0x40115c98 in Tcl_MutexLock () from /usr/lib/libtcl8.4.so.0
#6  0x4009281c in Tcl_AsyncMark () from /usr/lib/libtcl8.4.so.0
#7  0x4068a77c in expErrnoMsgSet () from /usr/lib/libexpect5.41.so.1
#8  0x4068a77c in expErrnoMsgSet () from /usr/lib/libexpect5.41.so.1
Previous frame identical to this frame (corrupt stack?)

I seen the same backtrace in two separate hangs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] expect hang with 2.6.7-pa14 #1
Date: Mon, 26 Jul 2004 15:18:56 -0700
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In reference to a message from John David Anglin, dated Jul 26:
> I tried 2.6.7-pa14 on a c3750.  There is a problem with expect running
> the gcc testsuite.  It apparently hangs waiting for a signal:

dunno about this, but i'm interested in:

> #7  0x4068a77c in expErrnoMsgSet () from /usr/lib/libexpect5.41.so.1
> #8  0x4068a77c in expErrnoMsgSet () from /usr/lib/libexpect5.41.so.1
> Previous frame identical to this frame (corrupt stack?)
> 
> I seen the same backtrace in two separate hangs.

is this from latest gdb cvs? if so i am interested in investigating why
the backtrace seems to be corrupted....

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] [patch] pdc printing
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Xref: news.gmane.org gmane.linux.ports.parisc:21837

Using debug spinlocks, sometimes we don't see any output, possibly
because of disabled interrupts or because of deadlocks in printk. This
patch makes the debug spinlock prints go through pdc console instead. It
works but i'm not completely happy with the fact that by replacing
printk() with pdc_printf() in debuglocks, the output only goes to
the pdc console and not "linux consoles" ... thoughts?

--- arch/parisc/kernel/pdc_cons.c	19 Jan 2004 05:15:47 -0000	1.6
+++ arch/parisc/kernel/pdc_cons.c	30 Jul 2004 00:47:55 -0000
@@ -71,6 +71,19 @@ void pdc_outc(unsigned char c)
 	pdc_iodc_outc(c);
 }
 
+void pdc_printf(const char *fmt, ...)
+{
+	va_list args;
+	char buf[1024];
+	int i, len;
+
+	va_start(args, fmt);
+	len = vscnprintf(buf, sizeof(buf), fmt, args);
+	va_end(args);
+
+	for (i = 0; i < len; i++)
+		pdc_iodc_outc(buf[i]);
+}
 
 int pdc_console_poll_key(struct console *co)
 {
--- arch/parisc/lib/debuglocks.c	14 Jul 2004 18:20:34 -0000	1.7
+++ arch/parisc/lib/debuglocks.c	30 Jul 2004 00:47:55 -0000
@@ -27,12 +27,14 @@
 #include <linux/spinlock.h>
 #include <asm/system.h>
 #include <asm/hardirq.h>	/* in_interrupt() */
+#include <asm/pdc.h>
 
 #undef INIT_STUCK
 #define INIT_STUCK 1L << 30
 
 #ifdef CONFIG_DEBUG_SPINLOCK
 
+
 void _dbg_spin_lock(spinlock_t * lock, const char *base_file, int line_no)
 {
 	volatile unsigned int *a;
@@ -64,7 +66,7 @@ try_again:
 		while ((*a == 0) && --stuck);
 
 	if (unlikely(stuck <= 0)) {
-		printk(KERN_WARNING
+		pdc_printf(
 			"%s:%d: spin_lock(%s/%p) stuck in %s at %p(%d)"
 			" owned by %s:%d in %s at %p(%d)\n",
 			base_file, line_no, lock->module, lock,
@@ -84,7 +86,7 @@ try_again:
 	lock->bline = line_no;
 
 	if (unlikely(printed)) {
-		printk(KERN_WARNING
+		pdc_printf(
 			"%s:%d: spin_lock grabbed in %s at %p(%d) %ld ticks\n",
 			base_file, line_no, current->comm, inline_pc,
 			cpu, jiffies - started);
@@ -97,7 +99,7 @@ void _dbg_spin_unlock(spinlock_t * lock,
 	volatile unsigned int *a = __ldcw_align(lock);
 	if (unlikely((*a != 0) && lock->babble)) {
 		lock->babble--;
-		printk(KERN_WARNING
+		pdc_printf(
 			"%s:%d: spin_unlock(%s:%p) not locked\n",
 			base_file, line_no, lock->module, lock);
 	}
@@ -150,7 +152,7 @@ void _dbg_write_lock(rwlock_t *rw, const
 	int cpu = smp_processor_id();
 	
 	if(unlikely(in_interrupt())) {	/* acquiring write lock in interrupt context, bad idea */
-		printk(KERN_WARNING "write_lock caller: %s:%d, IRQs enabled,\n", bfile, bline);
+		pdc_printf("write_lock caller: %s:%d, IRQs enabled,\n", bfile, bline);
 		BUG();
 	}
 
@@ -167,7 +169,7 @@ retry:
 		
 		stuck--;
 		if ((unlikely(stuck <= 0)) && (rw->counter < 0)) {
-			printk(KERN_WARNING
+			pdc_printf(
 				"%s:%d: write_lock stuck on writer"
 				" in %s at %p(%d) %ld ticks\n",
 				bfile, bline, current->comm, inline_pc,
@@ -176,7 +178,7 @@ retry:
 			printed = 1;
 		}
 		else if (unlikely(stuck <= 0)) {
-			printk(KERN_WARNING
+			pdc_printf(
 				"%s:%d: write_lock stuck on reader"
 				" in %s at %p(%d) %ld ticks\n",
 				bfile, bline, current->comm, inline_pc,
@@ -194,7 +196,7 @@ retry:
 	rw->counter = -1; /* remember we are locked */
 
 	if (unlikely(printed)) {
-		printk(KERN_WARNING
+		pdc_printf(
 			"%s:%d: write_lock grabbed in %s at %p(%d) %ld ticks\n",
 			bfile, bline, current->comm, inline_pc,
 			cpu, jiffies - started);
@@ -215,7 +217,7 @@ void _dbg_read_lock(rwlock_t * rw, const
 
 	rw->counter++;
 #if 0
-	printk(KERN_WARNING
+	pdc_printf(
 		"%s:%d: read_lock grabbed in %s at %p(%d) %ld ticks\n",
 		bfile, bline, current->comm, inline_pc,
 		cpu, jiffies - started);
--- include/asm-parisc/pdc.h	10 Jul 2004 07:51:15 -0000	1.8
+++ include/asm-parisc/pdc.h	30 Jul 2004 00:47:58 -0000
@@ -754,6 +754,7 @@ void pdc_io_reset_devices(void);
 int pdc_iodc_getc(void);
 void pdc_iodc_putc(unsigned char c);
 void pdc_iodc_outc(unsigned char c);
+void pdc_printf(const char *fmt, ...);
 
 void pdc_emergency_unlock(void);
 int pdc_sti_call(unsigned long func, unsigned long flags,


-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] expect hang with 2.6.7-pa14 #1
Date: Fri, 30 Jul 2004 12:56:10 -0400 (EDT)
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In-Reply-To: <20040726221856.GW546@tausq.org> from "Randolph Chung" at Jul 26,
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> dunno about this, but i'm interested in:
> 
> > #7  0x4068a77c in expErrnoMsgSet () from /usr/lib/libexpect5.41.so.1
> > #8  0x4068a77c in expErrnoMsgSet () from /usr/lib/libexpect5.41.so.1
> > Previous frame identical to this frame (corrupt stack?)

Here is another one that I found looking at a core dump by ld:

dave@hiauly6:~/gnu/gcc-3.5/objdir/hppa-linux/libjava/testsuite$ gdb /home/dave/opt/gnu/bin/ld core
GNU gdb 2004-07-26-cvs
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "hppa-unknown-linux-gnu"...Using host libthread_db library "/lib/libthread_db.so.1".

Core was generated by `/home/dave/opt/gnu/bin/ld --eh-frame-hdr -dynamic-linker /lib/ld.so.1 -o /home/'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld.so.1...done.
Loaded symbols for /lib/ld.so.1
#0  0x40008c38 in _dl_unload_cache () from /lib/ld.so.1
(gdb) bt 
#0  0x40008c38 in _dl_unload_cache () from /lib/ld.so.1
#1  0x00000000 in ?? ()
#2  0x00000000 in ?? ()
Previous frame identical to this frame (corrupt stack?)
(gdb) disass 0x40008c38 0x40008c48
Dump of assembler code from 0x40008c38 to 0x40008c48:
0x40008c38 <_dl_unload_cache+104>:      ldb 0(,r26),r20
0x40008c3c <_dl_unload_cache+108>:      cmpib,= 0,r20,0x40008cd4 <_dl_unload_cache+260>
0x40008c40 <_dl_unload_cache+112>:      ldi 0,ret0
0x40008c44 <_dl_unload_cache+116>:      copy r20,ret0
End of assembler dump.
(gdb) disass 0x400097cc 0x400097ec
Dump of assembler code from 0x400097cc to 0x400097ec:
0x400097cc <_dl_lookup_symbol+88>:      copy r25,r12
0x400097d0 <_dl_lookup_symbol+92>:      b,l 0x40008c38 <_dl_unload_cache+104>,rp
0x400097d4 <_dl_lookup_symbol+96>:      copy r26,r9

The above call is actually to _dl_elf_hash but we seem to have lost the
symbol for it (I suppose it got converted to a section symbol) and the
debug information for it.  _dl_elf_hash is static.

I believe gdb thinks that the exception occured in _dl_lookup_symbol.

(gdb) disass _dl_unload_cache
Dump of assembler code for function _dl_unload_cache:
0x40008bd0 <_dl_unload_cache+0>:        stw rp,-14(,sp)
0x40008bd4 <_dl_unload_cache+4>:        stw,ma r4,40(,sp)

(gdb) p/x *($sp - 0x40 - 0x14)
$4 = 0x0

There is no frame for _dl_elf_hash, so obviously gdb isn't going to
unwind correctly.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] expect hang with 2.6.7-pa14 #1
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> > Readelf doesn't seem to know about .PARISC.unwind:
> > 
> > $ readelf -u /lib/ld.so.1
> > There are no unwind sections in this file.
> 
> yeah, this is on my list of things to fix :)

Here is the unwind table entry.

(gdb) maintenance print unwind 0x40008c38
unwind_table_entry (0x3d2d20):
        region_start = 0x40008c38 <_dl_unload_cache+104>
	region_end = 0x40008cd4 <_dl_unload_cache+260>
	flags =
	Region_description = 0x1
	Entry_FR = 0x0
	Entry_GR = 0x0
	Total_frame_size = 0x0

For some reason, the above command generates some garbage
the second time.  However, here is the descriptor for
_dl_unload_cache:

(gdb) maintenance print unwind 0x40008c00
unwind_table_entry (0x3d2d0c):
	region_start = 0x40008bd0 <_dl_unload_cache>
	region_end = 0x40008c34 <_dl_unload_cache+100>
	flags = Save_RP
	Region_description = 0x1
	Entry_FR = 0x0
	Entry_GR = 0x1
	Total_frame_size = 0x8

So, the decriptors seem ok although we have lost the name
of _dl_elf_hash.  We need to use %rp to get the address of
the caller in this case.  This can address can then be used
to get the unwind descriptor for the caller.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] expect hang with 2.6.7-pa14 #1
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> Here is the unwind table entry.
> 
> (gdb) maintenance print unwind 0x40008c38
> unwind_table_entry (0x3d2d20):
>         region_start = 0x40008c38 <_dl_unload_cache+104>
> 	region_end = 0x40008cd4 <_dl_unload_cache+260>
> 	flags =
> 	Region_description = 0x1
> 	Entry_FR = 0x0
> 	Entry_GR = 0x0
> 	Total_frame_size = 0x0
> 
> (gdb) maintenance print unwind 0x40008c00
> unwind_table_entry (0x3d2d0c):
> 	region_start = 0x40008bd0 <_dl_unload_cache>
> 	region_end = 0x40008c34 <_dl_unload_cache+100>
> 	flags = Save_RP
> 	Region_description = 0x1
> 	Entry_FR = 0x0
> 	Entry_GR = 0x1
> 	Total_frame_size = 0x8

As I suspected, there is confusion regarding which unwind descriptor
to use:

(gdb) bt
#0  0x40008c38 in _dl_unload_cache () from /lib/ld.so.1
{ hppa_frame_cache (frame=-1) -> { find_unwind_entry 0x40008bd0 -> 0x3d2d0c (cached) }
{ find_unwind_entry 0x40008bd0 -> 0x3d2d0c (cached) }
{ find_unwind_entry 0x40008bd0 -> 0x3d2d0c (cached) }
 (this_sp=0xbff037c0, pc=0x40008c38, prologue_end=0x40008bd8)  (base=0xbff03780) [unwind adjust] } base=0xbff03780 }{ hppa_frame_cache (frame=-1) -> base=0xbff03780 (cached) }#1  0x00000000 in ?? ()
 { hppa_frame_cache (frame=-1) -> base=0xbff03780 (cached) }{ hppa_frame_cache (frame=-1) -> base=0xbff03780 (cached) }#2  0x00000000 in ?? ()
 { hppa_frame_cache (frame=-1) -> base=0xbff03780 (cached) }Previous frame identical to this frame (corrupt stack?)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [RFC] Light-Weight-Syscalls on hppa (atomic CAS,
	maybe fast timing stuff later)!
Date: Sat, 31 Jul 2004 18:07:34 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:21841


pa,

I need some help:

a. Where do I put the locks for the LWS functions?
b. It currently doesn't work. Crashes trying to load the lws table.
c. Haven't tracked down all the issues wrt user virtual address pointing
   to a page that has been swapped out and what happens on a load of
   that address from kernel priority with interrupts disabled.
   Need to work on this bit.
d. Need to fix CAS to return two values, the CAS return and the status
   return if something went wrong.

Here is the code for all eyes to see, maybe someone catches something I
goofed.

---
#include <stdio.h>
#include <stdlib.h>

#define LWS "0xb0"
#define LWS_CAS 0x0

#define LWS_CLOBBER "r26", "r25", "r24", "r23", "r22", "r20"
#define LWS_INPUT "r" (lwsnum), "r" (in0), "r" (in1), "r" (in2), "r" (in3), "r" (in4)

int lws(int lwsnum, int in0, int in1, int in2, int in3, int in4)
{
  register int retval __asm__ ("%r28");
  register int error __asm__ ("%r21");
        
  asm(
       "copy   %1, %%r26\n"
       "copy   %2, %%r25\n"
       "copy   %3, %%r24\n"
       "copy   %4, %%r23\n"
       "copy   %5, %%r22\n"
       "ble    " LWS "(%%sr2, %%r0)\n"
       "copy   %0, %%r20\n"
       : : LWS_INPUT : LWS_CLOBBER
     );

  if (error != 0)
    {
      printf("Error %d\n", error);
    }
  return retval;
}
	
int main(void)
{
  int ret;
  int casval = 12;
  
  printf("casval = %d\n", casval);	
  printf("calling lws %d\n", LWS_CAS);
  /* Address, Old value, New value */
  ret = lws(LWS_CAS, (int)&casval, 12, 34, -1, -1);
  printf("ret = %d, casval = %d\n", ret, casval);
  exit(0);

}
---
Index: arch/parisc/kernel/syscall.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/syscall.S,v
retrieving revision 1.12
diff -u -p -r1.12 syscall.S
--- arch/parisc/kernel/syscall.S	26 Apr 2004 15:57:53 -0000	1.12
+++ arch/parisc/kernel/syscall.S	31 Jul 2004 22:03:12 -0000
@@ -16,6 +16,8 @@
 #include <asm/assembly.h>
 #include <asm/processor.h>
 
+#include <linux/config.h> /* for CONFIG_SMP */
+
 #ifdef __LP64__
 	.level          2.0w
 #else
@@ -38,21 +40,79 @@
 	.align 4096
 linux_gateway_page:
 
-	.rept 56
+        /* ADDRESS 0x00 to 0xb0 = 176 bytes / 4 bytes per insn = 44 insns */
+	.rept 44
 	break   0,0
 	.endr
 
+        /* ADDRESS 0xb0 to 0xd8, lws uses 10 insns for entry */
+        /* Light-weight-syscall entry must always be located at 0xb0 
+
+                r20 - lws number
+                r26,r25,r24,r23,r22 - Input registers
+                r28,r21 - Return register
+
+                Scracth: r1, r28, r21
+
+                Return pointer: r31 (Not usable)
+         */
+
+/* WARNING: Keep this number updated with table size changes */
+#define __NR_lws_entries (2)
+#define __lws_size (lws_end_table - lws_table)
+#if defined(__LP64__)
+#  define LWS_ENTRY(_name_) .dword lws_##_name_
+#else
+#  define LWS_ENTRY(_name_) .word lws_##_name_
+#endif
+
+lws_entry:
+        /* Gate and ensure we return to userspace */
+        gate   .+8, %r0
+        depi   3, 31, 2, %r31
+
+        /* Is the lws entry number valid? */
+	comiclr,>>=	__NR_lws_entries, %r20, %r0
+	b,n	.Llws_nosys
+
+        /* Load table start */
+	ldil	L%lws_table, %r1
+	ldo     R%lws_table(%r1), %r28  /* Scratch use of r28 */
+
+#if defined(__LP64__)
+	ldd,s   %r20(%r28), %r20
+#else
+	ldwx,s  %r20(%r28), %r20
+#endif
+        /* Jump to lws */
+	be,n    0(%sr7,%r20)
+        /* WARNING: lws must issue the return to userspace! */
+
+.Llws_nosys:
+        /* Return to userspace */
+        be      0(%sr7, %r31)
+	ldo	-ENOSYS(%r0),%r28		   /* set errno */
+        
+        /* Fill from 0xd8 to 0xe0 */
+        .rept 2
+        break   0,0
+        .endr
+
+        /* This function MUST be located at 0xe0 for glibc's threading 
+           mechanism to work. DO NOT MOVE THIS CODE EVER! */
 set_thread_pointer:
 	gate	.+8, %r0		/* increase privilege */
 	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
 	be	0(%sr7,%r31)		/* return to user space */
 	mtctl	%r26, %cr27		/* move arg0 to the control register */
 
+        /* Increase the chance of trapping if random jumps occur to this
+           address, fill from 0xf0 to 0x100 */
 	.rept 4
 	break   0,0
 	.endr
 
-/* This address must remain fixed, or user binaries go splat. */
+/* This address must remain fixed at 0x100 for glibc's syscalls to work */
 	.align 256
 linux_gateway_entry:
 	gate	.+8, %r0			/* become privileged */
@@ -344,6 +404,134 @@ tracesys_sigexit:
 	ldil	L%syscall_exit_rfi,%r1
 	be,n	R%syscall_exit_rfi(%sr7,%r1)
 
+
+        /* Light-weight-syscall table */
+
+
+/* Start of lws table */
+lws_table:
+        LWS_ENTRY(compare_and_swap)     /* 0 - Atomic compare and swap */
+lws_end_table:
+/* End of lws table */
+
+
+lws_compare_and_swap:
+        /*
+                Implementing CAS as an atomic operation:
+
+                %r26 - Address to examine
+                %r25 - Old value to check (old)
+                %r24 - New value to set (new)
+                %r28 - Return prev through this register.
+        
+                Scratch: r20, r28, r1
+        */
+       
+
+        /* Test for permission to read from the address */
+
+        ldo    3(%r0), %r20
+#if defined(__LP64__)
+        probe,r  (%sr0,%r26), %r20, %r28
+#else
+        prober  (%sr0,%r26), %r20, %r28
+#endif
+        cmpb,<>,n %r0, %r28, cas_testwrite
+        be     0(%sr7, %r31)                       /* return to userspace */
+	ldo    -EINVAL(%r0),%r28		   /* set errno */
+
+cas_testwrite:
+
+        /* Test for permission to write to the address */
+
+#if defined(__LP64__)
+        probe,w  (%sr0,%r26), %r20, %r28
+#else
+        probew  (%sr0,%r26), %r20, %r28
+#endif
+        cmpb,<>,n %r0, %r28, cas_continue
+        be     0(%sr7, %r31)                       /* return to userspace */
+	ldo    -EINVAL(%r0),%r28		   /* set errno */
+
+cas_continue:
+
+#ifdef CONFIG_SMP
+        /* Load start of lock table */
+        ldil   L%lock_start, %r20
+        ldo    R%lock_start(%r20), %r28
+
+        /* Extract four bits from r26 and hash lock (Bits 4-7) */
+        extru  %r26, 27, 4, %r20
+
+        /* Find lock to use, the hash is either one of 0 to
+           15, multiplied by 16 (keep it 16-byte aligned)
+           and add to the lock table offset. */
+        shlw   %r20, 4, %r20
+        add    %r20, %r28, %r20
+#endif
+
+cas_lock_loop:
+        rsm   PSW_SM_I, %r0
+
+
+#ifdef CONFIG_SMP
+        ldcw  0(%r20), %r28
+        cmpb,<>,n %r0, %r28, cas_action
+        ssm   PSW_SM_I, %r0
+        ldw   0(%r20), %r28
+cas_read_loop:
+        cmpb,=,n %r0, %r28, cas_read_loop
+        ldw   0(%r20), %r28
+        b     cas_lock_loop
+#endif
+
+        /*
+                prev = *addr;
+                if ( prev == old )
+                        *addr = new;
+                return prev;
+        */
+
+cas_action:
+        ldw   0(%r26), %r28
+        sub,<>   %r28, %r25, %r0
+        stw   %r24, 0(%r26)
+
+#ifdef CONFIG_SMP
+        /* Store ANY non-zero value to the lock */
+        stw   %r20, 0(%r20)
+#endif
+
+end_compare_and_swap:
+        /* Return to userspace */
+        be    0(%sr7, %r31)
+        /* Privelege decrease occurs at the branch target. */
+        ssm   PSW_SM_I, %r0
+
+
+	/* Make sure nothing else is placed on this page */
+
+	.align 4096
+	.export end_linux_gateway_page
+end_linux_gateway_page:
+
+        .align 4096
+lock_start:
+        /*
+                All light-weight-syscall atomic operations 
+                will use this set of locks 
+        */
+
+        /* lws locks */
+        .align 16
+        .rept 16
+        /* Keep locks aligned at 16-bytes */
+        .word 1
+        .word 1
+        .word 1
+        .word 1
+        .endr
+
 	.align 4096
 	.export sys_call_table
 .Lsys_call_table:
@@ -359,10 +547,4 @@ sys_call_table64:
 #include "syscall_table.S"
 #endif
 
-
-	/* Make sure nothing else is placed on this page */

From - Thu Nov 08 21:32:19 2018
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [RFC] Reorder compat structure placement and casting
	(firmware.c)?
Date: Sun, 1 Aug 2004 00:50:32 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:21842


pa,

Stop defining variables after code, and make sure that two externs don't
reference the same variable with different types. Comments?

Index: arch/parisc/kernel/firmware.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/firmware.c,v
retrieving revision 1.10
diff -u -p -r1.10 firmware.c
--- arch/parisc/kernel/firmware.c	10 Jul 2004 21:20:47 -0000	1.10
+++ arch/parisc/kernel/firmware.c	1 Aug 2004 04:24:15 -0000
@@ -237,11 +237,11 @@ int __init pdc_chassis_info(struct pdc_c
 #ifdef __LP64__
 int pdc_pat_chassis_send_log(unsigned long state, unsigned long data)
 {
+	int retval = 0;
+        
 	if (!is_pdc_pat())
 		return -1;
 
-	int retval = 0;
-
 	spin_lock_irq(&pdc_lock);
 	retval = mem_pdc_call(PDC_PAT_CHASSIS_LOG, PDC_PAT_CHASSIS_WRITE_LOG, __pa(&state), __pa(&data));
 	spin_unlock_irq(&pdc_lock);
@@ -1195,7 +1195,32 @@ int pdc_pat_io_pci_cfg_write(unsigned lo
 #endif /* __LP64__ */
 
 
-/***************** 32-bit real-mode calls ***********/
+/***************** 32-bit and 64-bit real-mode calls ***********/
+
+#ifdef __LP64__
+/* The structure below is the wide 64-bit stack view */
+
+struct wide_stack {
+	unsigned long arg0;
+	unsigned long arg1;
+	unsigned long arg2;
+	unsigned long arg3;
+	unsigned long arg4;
+	unsigned long arg5;
+	unsigned long arg6;
+	unsigned long arg7;
+	unsigned long arg8;
+	unsigned long arg9;
+	unsigned long arg10;
+	unsigned long arg11;
+	unsigned long arg12;
+	unsigned long arg13;
+	unsigned long frame_marker[2];	/* rp, previous sp */
+	unsigned long sp;
+	/* in reality, there's nearly 8k of stack after this */
+};
+#endif /* __LP64__ */
+
 /* The struct below is used
  * to overlay real_stack (real2.S), preparing a 32-bit call frame.
  * real32_call_asm() then uses this stack in narrow real mode
@@ -1225,53 +1250,42 @@ struct narrow_stack {
 long real32_call(unsigned long fn, ...)
 {
 	va_list args;
+#ifdef __LP64__
+        /* If we have a 64-bit kernel reference the stack as
+           such, but cast down to a 32-bit structure if
+           required. */
+	extern struct wide_stack real_stack;
+#else
 	extern struct narrow_stack real_stack;
+#endif
+        
+	struct narrow_stack * real32_stack;
 	extern unsigned long real32_call_asm(unsigned int *,
 					     unsigned int *, 
 					     unsigned int);
 	
+        real32_stack = (struct narrow_stack *)&real_stack;
 	va_start(args, fn);
-	real_stack.arg0 = va_arg(args, unsigned int);
-	real_stack.arg1 = va_arg(args, unsigned int);
-	real_stack.arg2 = va_arg(args, unsigned int);
-	real_stack.arg3 = va_arg(args, unsigned int);
-	real_stack.arg4 = va_arg(args, unsigned int);
-	real_stack.arg5 = va_arg(args, unsigned int);
-	real_stack.arg6 = va_arg(args, unsigned int);
-	real_stack.arg7 = va_arg(args, unsigned int);
-	real_stack.arg8 = va_arg(args, unsigned int);
-	real_stack.arg9 = va_arg(args, unsigned int);
-	real_stack.arg10 = va_arg(args, unsigned int);
-	real_stack.arg11 = va_arg(args, unsigned int);
-	real_stack.arg12 = va_arg(args, unsigned int);
-	real_stack.arg13 = va_arg(args, unsigned int);
+	real32_stack->arg0 = va_arg(args, unsigned int);
+	real32_stack->arg1 = va_arg(args, unsigned int);
+	real32_stack->arg2 = va_arg(args, unsigned int);
+	real32_stack->arg3 = va_arg(args, unsigned int);
+	real32_stack->arg4 = va_arg(args, unsigned int);
+	real32_stack->arg5 = va_arg(args, unsigned int);
+	real32_stack->arg6 = va_arg(args, unsigned int);
+	real32_stack->arg7 = va_arg(args, unsigned int);
+	real32_stack->arg8 = va_arg(args, unsigned int);
+	real32_stack->arg9 = va_arg(args, unsigned int);
+	real32_stack->arg10 = va_arg(args, unsigned int);
+	real32_stack->arg11 = va_arg(args, unsigned int);
+	real32_stack->arg12 = va_arg(args, unsigned int);
+	real32_stack->arg13 = va_arg(args, unsigned int);
 	va_end(args);
 	
-	return real32_call_asm(&real_stack.sp, &real_stack.arg0, fn);
+	return real32_call_asm(&real32_stack->sp, &real32_stack->arg0, fn);
 }
 
 #ifdef __LP64__
-/***************** 64-bit real-mode calls ***********/

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On Thu, Jul 22, 2004 at 04:42:37AM +0100, backblue wrote:
> Hi, i have a H40 and a H50 rack mounted machines, with mutiple scsi
> array discs, i want to put linux on one of the machines, does one of
> them it's suported here? does any linux suport this?

Not in any useful way, I'm afraid.  We don't support the LAN or SCSI
devices in this machine.  We have support for the console, but that's not
much use to you by itself.  Basically, Linux will boot and could run out
of a ramdisc, but not communicate through anything other than console.
Sorry.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] Help: i386-linux -> hppa-hpux cross-compiler
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On Sun, Jul 25, 2004 at 01:33:38PM -0500, Ivan Petrovich wrote:
> This is not a parisc-linux question, though it is somewhat related.
> I am trying to build a i386-linux to hppa-hpux (not hppa-linux)
> cross-compiler. I have read the parisc-linux FAQ, but found it to not
> be useful for my application.

For the linker, you'll need the hpux linker which was ported in the early
days of the port.  Try http://cvs.parisc-linux.org/obsolete/linker/ but
be warned nobody's touched it for a number of years.  You may also wish
to review old postings to this list (say, 1999/2000) before we ported
the kernel to be ELF.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
_______________________________________________
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Subject: Re: [parisc-linux] [RFC] Reorder compat structure placement and
	casting (firmware.c)?
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On Sun, Aug 01, 2004 at 11:27:51PM -0600, Grant Grundler wrote:
> On Sun, Aug 01, 2004 at 12:50:32AM -0400, Carlos O'Donell wrote:
> > +#ifdef __LP64__
> > +        /* If we have a 64-bit kernel reference the stack as
> > +           such, but cast down to a 32-bit structure if
> > +           required. */
> > +	extern struct wide_stack real_stack;
> > +#else
> >  	extern struct narrow_stack real_stack;
> > +#endif
> 
> This is the bit I don't think will work.

Why not? In a wide kernel we only ever declare "extern struct wide_stack
real_stack" and then if we need a narrow stack we cast the pointer. It's
just a label to 8192 bytes declared in real2.S.

 
> > +        real32_stack = (struct narrow_stack *)&real_stack;
> 
> Apologies - this is probbaly the right way to alias/union
> the same address. I just overlooked it before.

The problem is that we can't have two externs declare the same variable
with different storage types. So in wide kernels we make gcc think it's
pointing to a wide_stack, and cast about as neccessary. I coded it such
that the fallback case should optimize away.

c.

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Subject: [parisc-linux] hppa light-weight-syscall CAS working! or "The
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pa,

Success. LWS CAS is working, but don't do anything naughty or it
crashes. I'm trying to determine why I get an HPMC when I probew an
address that probably has no mapping? It should be nullifying the insn
in question and returning zero?

Here is an updated working patch for light-weight-syscalls. The todo
list includes:

Things I still have to fix:
- User passes in a bogus address.
        = Unaligned? No mapping exists?
        = probew crashes the kernel in the latter (HPMC).
- User can read to address, but not write.
        = probew crashes the kernel.
- Take a tlb miss during the main CAS operation.
        = Need to add the load to the exceptions list
        = and work out a method where I can wait for the
        = page to migrate back from swap->memory->cache
        = and then try again. In the mean time I can't take
        = a signal or be scheduled off that CPU. I plan to do
        = the later by making sure that the return path back
        = from the scheduler double checks the return priority
        = and if it's not user priority it shouldn't be sending
        = pending signals.
- SMP locking is untested.
- Add more test cases to userspace tester.
                                                                                                 
Things to optimize:
- Remove some jumps
- Don't shuffle around the space registers so much.
- Ask smarter people to optimize the insn sequences.

I'm timing the lws calls and on a 712/100 it's pipelined and read from
the cache, so cr16 doesn't even register a single click for the lws :)

Any input would be much appreciated! Lamont you've always been a great
source of insightful information when it comes to low level coding!

Cheers,
Carlos.

Index: arch/parisc/kernel/syscall.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/syscall.S,v
retrieving revision 1.12
diff -u -p -r1.12 syscall.S
--- arch/parisc/kernel/syscall.S	26 Apr 2004 15:57:53 -0000	1.12
+++ arch/parisc/kernel/syscall.S	5 Aug 2004 06:00:21 -0000
@@ -16,6 +16,8 @@
 #include <asm/assembly.h>
 #include <asm/processor.h>
 
+#include <linux/config.h> /* for CONFIG_SMP */
+
 #ifdef __LP64__
 	.level          2.0w
 #else
@@ -38,21 +40,56 @@
 	.align 4096
 linux_gateway_page:
 
-	.rept 56
+        /* ADDRESS 0x00 to 0xb0 = 176 bytes / 4 bytes per insn = 44 insns */
+	.rept 44
 	break   0,0
 	.endr
 
+        /* ADDRESS 0xb0 to 0xd8, lws uses 2 insns for entry */
+        /* Light-weight-syscall entry must always be located at 0xb0 
+
+                r20 - lws number
+                r26,r25,r24,r23,r22 - Input registers
+                r28,r21 - Return register
+
+                Scracth: r1, r28, r21
+
+                Return pointer: r31 (Not usable)
+         */
+
+/* WARNING: Keep this number updated with table size changes */
+#define __NR_lws_entries (2)
+#define __lws_size (lws_end_table - lws_table)
+#if defined(__LP64__)
+#  define LWS_ENTRY(_name_) .dword lws_##_name_
+#else
+#  define LWS_ENTRY(_name_) .word lws_##_name_
+#endif
+
+lws_entry:
+        b lws_start
+        nop
+
+        /* Fill from 0xb8 to 0xe0 */
+        .rept 10
+        break   0,0
+        .endr
+
+        /* This function MUST be located at 0xe0 for glibc's threading 
+           mechanism to work. DO NOT MOVE THIS CODE EVER! */
 set_thread_pointer:
 	gate	.+8, %r0		/* increase privilege */
 	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
 	be	0(%sr7,%r31)		/* return to user space */
 	mtctl	%r26, %cr27		/* move arg0 to the control register */
 
+        /* Increase the chance of trapping if random jumps occur to this
+           address, fill from 0xf0 to 0x100 */
 	.rept 4
 	break   0,0
 	.endr
 
-/* This address must remain fixed, or user binaries go splat. */
+/* This address must remain fixed at 0x100 for glibc's syscalls to work */
 	.align 256
 linux_gateway_entry:
 	gate	.+8, %r0			/* become privileged */
@@ -344,6 +381,175 @@ tracesys_sigexit:
 	ldil	L%syscall_exit_rfi,%r1
 	be,n	R%syscall_exit_rfi(%sr7,%r1)
 
+
+        /* Light-weight-syscall code */
+
+lws_start:
+        /* Gate and ensure we return to userspace */
+        gate   .+8, %r0
+        depi   3, 31, 2, %r31
+
+        /* Is the lws entry number valid? */
+	comiclr,>>=	__NR_lws_entries, %r20, %r0
+	b,n	lws_exit_nosys
+
+	mtsp	%r0,%sr4			/* get kernel space into sr4 */
+	mtsp	%r0,%sr5			/* get kernel space into sr5 */
+	mtsp	%r0,%sr6			/* get kernel space into sr6 */
+	mfsp    %sr7,%r1                        /* save user sr7 */
+	mtsp    %r1,%sr3                        /* and store it in sr3 */
+	mtsp	%r0,%sr7			/* get kernel space into sr7 */
+
+        /* Load table start */
+	ldil	L%lws_table, %r1
+	ldo     R%lws_table(%r1), %r28  /* Scratch use of r28 */
+#if defined(__LP64__)
+	ldd,s   %r20(%r28), %r20
+#else
+	ldwx,s  %r20(%r28), %r20
+#endif
+
+
+        /* Jump to lws */
+	be,n    0(%sr7,%r20)
+        /* WARNING: lws must issue the return to userspace! */
+
+lws_exit:
+        mfsp    %sr3,%r1                        /* get user space id */
+        mtsp    %r1,%sr4                        /* get user space into sr4 */
+        mtsp    %r1,%sr5                        /* get user space into sr5 */
+        mtsp    %r1,%sr6                        /* get user space into sr6 */
+        mtsp    %r1,%sr7                        /* get user space into sr7 */
+        be,n      0(%sr7, %r31)
+
+lws_exit_nosys:
+        /* Return to userspace */
+        be      0(%sr7, %r31)
+	ldo	-ENOSYS(%r0),%r21		   /* set errno */
+        
+
+lws_compare_and_swap:
+        /*
+                Implementing CAS as an atomic operation:
+
+                %r26 - Address to examine
+                %r25 - Old value to check (old)
+                %r24 - New value to set (new)
+                %r28 - Return prev through this register.
+        
+                Scratch: r20, r28, r1
+        */
+       
+
+        /* Test for permission to read from the address */
+#ifdef __LP64__
+	ldd,s   0(%sr3,%r26), %r20
+#else
+	ldwx,s  0(%sr3,%r26), %r20
+#endif
+        
+cas_testwrite:
+
+        /* Test for permission to write to the address */
+#if defined(__LP64__)
+        probe,w  (%sr3,%r26), %r20, %r28
+#else
+        probew  (%sr3,%r26), %r20, %r28
+#endif
+        cmpb,<>,n %r0, %r28, cas_continue
+	ldo    -EINVAL(%r0),%r21
+        b,n    lws_exit
+
+cas_continue:
+
+#ifdef CONFIG_SMP
+        /* Load start of lock table */
+        ldil   L%lws_lock_start, %r20
+        ldo    R%lws_lock_start(%r20), %r28
+
+        /* Extract four bits from r26 and hash lock (Bits 4-7) */
+        extru  %r26, 27, 4, %r20
+
+        /* Find lock to use, the hash is either one of 0 to
+           15, multiplied by 16 (keep it 16-byte aligned)
+           and add to the lock table offset. */
+        shlw   %r20, 4, %r20
+        add    %r20, %r28, %r20
+#endif
+
+cas_lock_loop:
+        rsm   PSW_SM_I, %r0
+
+
+#ifdef CONFIG_SMP
+        ldcw  0(%r20), %r28
+        cmpb,<>,n %r0, %r28, cas_action
+        ssm   PSW_SM_I, %r0
+        ldw   0(%r20), %r28
+cas_read_loop:
+        cmpb,=,n %r0, %r28, cas_read_loop
+        ldw   0(%r20), %r28
+        b     cas_lock_loop
+#endif
+
+        /*
+                prev = *addr;
+                if ( prev == old )
+                        *addr = new;
+                return prev;
+        */
+
+cas_action:
+        ldw   0(%sr3,%r26), %r28
+        sub,<>   %r28, %r25, %r0
+        stw   %r24, 0(%sr3,%r26)
+
+#ifdef CONFIG_SMP
+        /* Store ANY non-zero value to the lock */
+        stw   %r20, 0(%r20)
+#endif
+
+        /* No errors */
+        copy  %r0, %r21
+
+end_compare_and_swap:
+        /* Return to userspace */
+        b     lws_exit
+        ssm   PSW_SM_I, %r0
+
+
+	/* Make sure nothing else is placed on this page */
+
+	.align 4096
+	.export end_linux_gateway_page
+end_linux_gateway_page:
+
+        /*
+                All light-weight-syscall atomic operations 
+                will use this set of locks 
+        */
+        .align 4096
+        .export lws_lock_start
+.Llws_lock_start:
+        /* lws locks */
+        .align 16
+        .rept 16
+        /* Keep locks aligned at 16-bytes */
+        .word 1
+        .word 1
+        .word 1
+        .word 1
+        .endr
+
+        .align 4096
+        /* Light-weight-syscall table */
+        /* Start of lws table. */
+        /* FIXME: global symbol */
+lws_table:
+        LWS_ENTRY(compare_and_swap)     /* 0 - Atomic compare and swap */
+lws_end_table:
+        /* End of lws table */
+
 	.align 4096
 	.export sys_call_table
 .Lsys_call_table:
@@ -359,10 +565,4 @@ sys_call_table64:
 #include "syscall_table.S"
 #endif
 
-
-	/* Make sure nothing else is placed on this page */
-
-	.align 4096
-	.export end_linux_gateway_page
-end_linux_gateway_page:
 
-----8<----- Userspace test-lws -----8<-----
#include <stdio.h>
#include <stdlib.h>

#define LWS "0xb0"
#define LWS_CAS 0x0

#define LWS_CLOBBER "r26", "r25", "r24", "r23", "r22", "r20"
#define LWS_INPUT "r" (lwsnum), "r" (in0), "r" (in1), "r" (in2), "r" (in3), "r" (in4)
#define LWS_OUTPUT "=m" (retval), "=m" (error)

int lws_errno;

int lws(int lwsnum, int in0, int in1, int in2, int in3, int in4)
{
  int retval;
  int error;

  asm(
       "copy   %3, %%r26\n"
       "copy   %4, %%r25\n"
       "copy   %5, %%r24\n"
       "copy   %6, %%r23\n"
       "copy   %7, %%r22\n"
       "ble    " LWS "(%%sr2, %%r0)\n"
       "copy   %2, %%r20\n"
       "stw   %%r28, %0\n"
       "stw   %%r21, %1\n"
       : LWS_OUTPUT : LWS_INPUT : LWS_CLOBBER
     );

  if (error != 0)
    {
      printf("lws syscall error %d\n", error);
      lws_errno = error;
    }
  return retval;
}
	
#define CAS_OLD 12
#define CAS_NEW 34
#define LWS_BAD 666

int main(void)
{
  int ret;
  int casval = CAS_OLD;
  unsigned int t1,t2;
  
  printf("Testing lws CAS (syscall #%d)\n", LWS_CAS);
  
  /***** Test *****/
  /* cas(addr, old, new)
     {
       prev = *addr;
       if ( prev == old )
         *addr = new;
       return prev;
     } */
  lws_errno = 0;
  asm ("mfctl %%cr16,%0\n" : "=r" (t1) :);
  ret = lws(LWS_CAS, (int)&casval, CAS_OLD, CAS_NEW, -1, -1);
  asm ("mfctl %%cr16,%0\n" : "=r" (t2) :);
  if ((casval == CAS_NEW) && (lws_errno == 0))
    {
      printf("PASSED: CAS worked correctly.\n");
    }
  else
    {
      printf("FAILED: CAS did not work.\n");
    }
  printf("Time: %u %u (Diff %u)\n",t1,t2,t2-t1);
  
  /***** Test *****/
  lws_errno = 0;
  printf("Testing lws with invalid number (syscall #%d)\n", LWS_BAD);
  asm ("mfctl %%cr16,%0\n" : "=r" (t1) :);
  ret = lws(LWS_BAD, 0, 0, 0, 0, 0);
  asm ("mfctl %%cr16,%0\n" : "=r" (t2) :);
  if (lws_errno != 0)
    {
      printf("PASSED: lws returned error on invalid syscall number.\n");
    }
  else
    {
      printf("FAILED: lws didn't error on invalid syscall number!\n");
    }
  printf("Time: %u %u (Diff %u)\n",t1,t2,t2-t1);
  
  /***** Test *****/
  lws_errno = 0;
  printf("Testing lws CAS with NULL address (syscall #%d)\n", LWS_CAS);
  /* Pass a bogus address and see what happens? */
  asm ("mfctl %%cr16,%0\n" : "=r" (t1) :);
  ret = lws(LWS_CAS, 0, 0, 0, 0, 0);
  asm ("mfctl %%cr16,%0\n" : "=r" (t2) :);
  if (lws_errno != 0)
    {
      printf("PASSED: lws CAS returned error on invalid address.\n");
    }
  else
    {
      printf("FAILED: lws CAS operated on an invalid address!\n");
    }
  printf("Time: %u %u (Diff %u)\n",t1,t2,t2-t1);
  
  exit(0);

}
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Subject: [parisc-linux] [RFC] head.S merge, take 2
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Xref: news.gmane.org gmane.linux.ports.parisc:21847

Just thought I'd toss this out after incorporating tausq and jda's
comments.

Cheers,

Index: arch/parisc/kernel/Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/Makefile,v
retrieving revision 1.4
diff -u -r1.4 Makefile
--- arch/parisc/kernel/Makefile	9 May 2004 04:13:00 -0000	1.4
+++ arch/parisc/kernel/Makefile	6 Aug 2004 01:27:52 -0000
@@ -3,7 +3,6 @@
 #
 
 head-y			:= head.o
-head-$(CONFIG_PARISC64)	:= head64.o
 extra-y			:= init_task.o $(head-y) vmlinux.lds.s
 
 AFLAGS_entry.o	:= -traditional
Index: arch/parisc/kernel/head.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head.S,v
retrieving revision 1.8
diff -u -r1.8 head.S
--- arch/parisc/kernel/head.S	29 Jul 2004 15:38:06 -0000	1.8
+++ arch/parisc/kernel/head.S	6 Aug 2004 01:27:53 -0000
@@ -1,12 +1,13 @@
-/*
- *
- * This file is subject to the terms and conditions of the GNU General Public
+/* This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
  * Copyright (C) 1999 by Helge Deller
  * Copyright 1999 SuSE GmbH (Philipp Rumpf)
  * Copyright 1999 Philipp Rumpf (prumpf@tux.org)
+ * Copyright 2000 Hewlett Packard (Paul Bame, bame@puffin.external.hp.com)
+ * Copyright (C) 2001 Grant Grundler (Hewlett Packard)
+ * Copyright (C) 2004 Kyle McMartin <kyle@debian.org>
  *
  * Initial Version 04-23-1999 by Helge Deller <deller@gmx.de>
  */
@@ -15,12 +16,12 @@
 
 #include <asm/offsets.h>
 #include <asm/psw.h>
-
+#include <asm/pdc.h>
+	
 #include <asm/assembly.h>
 #include <asm/pgtable.h>
 
-
-	.level 1.1
+	.level	LEVEL
 
 	.data
 
@@ -32,12 +33,13 @@
 	.word 0 /* arg3 */
 
 	.text
-	.align	4	
+	.align	4
 	.import init_thread_union,data
+	.import fault_vector_11,code    /* IVA parisc 1.1 32 bit */
+	.import fault_vector_20,code    /* IVA parisc 2.0 32 bit */
+#ifndef __LP64__
 	.import	$global$		/* forward declaration */
-	.import fault_vector_11,code	/* IVA parisc 1.1 32 bit */
-	.import fault_vector_20,code	/* IVA parisc 2.0 32 bit */
-
+#endif /*!LP64*/
 	.export stext
 	.export _stext,data		/* Kernel want it this way! */
 _stext:
@@ -56,82 +58,108 @@
 	.import __bss_start,data
 	.import __bss_stop,data
 
-	ldil            L%PA(__bss_start),%r3
-	ldo             R%PA(__bss_start)(%r3),%r3
-	ldil            L%PA(__bss_stop),%r4
-	ldo             R%PA(__bss_stop)(%r4),%r4
+	load32		PA(__bss_start),%r3
+	load32		PA(__bss_stop),%r4
 $bss_loop:
 	cmpb,<<,n       %r3,%r4,$bss_loop
+#ifdef __LP64__
+	stb,ma          %r0,1(%r3)
+#else
 	stw,ma          %r0,4(%r3)
+#endif
 
 	/* Save away the arguments the boot loader passed in (32 bit args) */
-
-	ldil            L%PA(boot_args),%r1
-	ldo             R%PA(boot_args)(%r1),%r1
+	load32		PA(boot_args),%r1
 	stw,ma          %arg0,4(%r1)
 	stw,ma          %arg1,4(%r1)
 	stw,ma          %arg2,4(%r1)
 	stw,ma          %arg3,4(%r1)
 
 	/* Initialize startup VM. Just map first 8 MB of memory */
-	ldil		L%PA(pg0),%r1
-	ldo		R%PA(pg0)(%r1),%r1
-	shr		%r1,PxD_VALUE_SHIFT,%r3
-	ldo		(PxD_FLAG_PRESENT+PxD_FLAG_VALID)(%r3),%r3
+	load32		PA(pg0),%r1
 
-	ldil		L%PA(swapper_pg_dir),%r4
-	ldo		R%PA(swapper_pg_dir)(%r4),%r4
+#ifdef __LP64__
+	load32		PA(pmd0),%r5
+	shrd            %r5,PxD_VALUE_SHIFT,%r3	
+#else
+	shr		%r1,PxD_VALUE_SHIFT,%r3
+#endif
+        ldo             (PxD_FLAG_PRESENT+PxD_FLAG_VALID)(%r3),%r3	
+	
+	load32		PA(swapper_pg_dir),%r4
 	mtctl		%r4,%cr24	/* Initialize kernel root pointer */
 	mtctl		%r4,%cr25	/* Initialize user root pointer */
+
+#ifdef __LP64__
+	stw		%r3,ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4)
+	shrd		%r1,PxD_VALUE_SHIFT,%r3
+	ldo		(PxD_FLAG_PRESENT+PxD_FLAG_VALID)(%r3),%r3
+	ldo		ASM_PMD_ENTRY*ASM_PMD_ENTRY_SIZE(%r5),%r5
+#else
+        ldo             ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4),%r4
+#endif
 	ldi		ASM_PT_INITIAL,%r1
-	ldo		ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4),%r4
+
 1:
+#ifdef __LP64__
+	stw             %r3,0(%r5)
+#else
 	stw             %r3,0(%r4)
+#endif
+	
 	ldo		(ASM_PAGE_SIZE >> PxD_VALUE_SHIFT)(%r3),%r3
 	addib,>		-1,%r1,1b
+
+#ifdef __LP64__
+	ldo		ASM_PMD_ENTRY_SIZE(%r5),%r5
+#else
 	ldo		ASM_PGD_ENTRY_SIZE(%r4),%r4
+#endif
 
 	ldo		_PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
-	ldil		L%PA(pg0),%r1
-	ldo		R%PA(pg0)(%r1),%r1
+	load32		PA(pg0),%r1
+
 $pgt_fill_loop:
-	stwm		%r3,ASM_PTE_ENTRY_SIZE(%r1)
+	STREGM          %r3,ASM_PTE_ENTRY_SIZE(%r1)
 	ldo		ASM_PAGE_SIZE(%r3),%r3
 	bb,>=		%r3,31-KERNEL_INITIAL_ORDER,$pgt_fill_loop
 	nop
 
-
 	/* Load the return address...er...crash 'n burn */
 	copy		%r0,%r2
 
 	/* And the RFI Target address too */
-	ldil            L%start_kernel,%r11
-	ldo             R%start_kernel(%r11),%r11
+	load32		start_kernel,%r11
 
 	/* And the initial task pointer */
-
-	ldil            L%init_thread_union,%r6
-	ldo             R%init_thread_union(%r6),%r6
+	load32		init_thread_union,%r6
 	mtctl           %r6,%cr30
 
 	/* And the stack pointer too */
-
+#ifdef __LP64__
+	load32          PA(init_thread_union+THREAD_SZ_ALGN),%sp
+#else
 	ldo             THREAD_SZ_ALGN(%r6),%sp
+#endif
 
 	/* And the interrupt stack */
-
-	ldil            L%interrupt_stack,%r6
-	ldo             R%interrupt_stack(%r6),%r6
+	load32		interrupt_stack,%r6
 	mtctl           %r6,%cr31
 
+#ifdef __LP64__
+#define MEM_PDC_LO 0x388
+#define MEM_PDC_HI 0x35C
+	ldw             MEM_PDC_LO(%r0),%r3
+	ldw             MEM_PDC_HI(%r0),%r6
+	depd            %r6, 31, 32, %r3        /* move to upper word */
+#endif
 #ifdef CONFIG_SMP
 	/* Set the smp rendevous address into page zero.
 	** It would be safer to do this in init_smp_config() but
 	** it's just way easier to deal with here because
 	** of 64-bit function ptrs and the address is local to this file.
 	*/
-	ldil		L%PA(smp_slave_stext),%r10
-	ldo		R%PA(smp_slave_stext)(%r10),%r10
+	load32		PA(smp_slave_stext),%r10
 	stw		%r10,0x10(%r0)	/* MEM_RENDEZ */
 	stw		%r0,0x28(%r0)	/* MEM_RENDEZ_HI - assume addr < 4GB */
 
@@ -141,10 +169,16 @@
 	/*
 	** Code Common to both Monarch and Slave processors.
 	** Entry:
+	**
+	**  1.1:	
 	**    %r11 must contain RFI target address.
 	**    %r25/%r26 args to pass to target function
 	**    %r2  in case rfi target decides it didn't like something
 	**
+	**  2.0w:
+	**    %r3  PDCE_PROC address
+	**    %r11 RFI target address
+	**
 	** Caller must init: SR4-7, %sp, %r10, %cr24/25, 
 	*/
 common_stext:
@@ -154,8 +188,41 @@
 	/* Clear PDC entry point - we won't use it */
 	stw		%r0,0x10(%r0)	/* MEM_RENDEZ */
 	stw		%r0,0x28(%r0)	/* MEM_RENDEZ_HI */
-#endif
+#endif /*CONFIG_SMP*/
 
+#ifdef __LP64__
+	/* Save the rfi target address */
+	ldd             TI_TASK-THREAD_SZ_ALGN(%sp), %r10
+	tophys_r1       %r10
+	std             %r11,  TASK_PT_GR11(%r10)
+	/* Switch to wide mode Superdome doesn't support narrow PDC
+	** calls.
+	*/
+1:	mfia            %rp             /* clear upper part of pcoq */
+	ldo             2f-1b(%rp),%rp
+	depdi           0,31,32,%rp
+	bv              (%rp)
+	ssm             PSW_SM_W,%r0
+
+        /* Set Wide mode as the "Default" (eg for traps)
+        ** First trap occurs *right* after (or part of) rfi for slave CPUs.
+        ** Someday, palo might not do this for the Monarch either.
+        */
+2:
+	ldo             PDC_PSW(%r0),%arg0              /* 21 */
+	ldo             PDC_PSW_SET_DEFAULTS(%r0),%arg1 /* 2 */
+	ldo             PDC_PSW_WIDE_BIT(%r0),%arg2     /* 2 */
+	load32          PA(stext_pdc_ret), %rp
+	bv              (%r3)
+	copy            %r0,%arg3
+
+stext_pdc_ret:
+	/* restore rfi target address*/
+	ldd             TI_TASK-THREAD_SZ_ALGN(%sp), %r10
+	tophys_r1       %r10
+	ldd             TASK_PT_GR11(%r10), %r11
+#endif
+	
 	/* PARANOID: clear user scratch/user space SR's */
 	mtsp	%r0,%sr0
 	mtsp	%r0,%sr1
@@ -168,12 +235,15 @@
 	mtctl	%r0,%cr12
 	mtctl	%r0,%cr13
 
+#ifdef __LP64__
+	/* Prepare to RFI! Man all the cannons! */
+	tovirt_r1       %sp
+#endif
+	
 	/* Initialize the global data pointer */
-	ldil		L%$global$,%dp
-	ldo		R%$global$(%dp),%dp
+	loadgp
 
-	/*
-	 * Set up our interrupt table.  HPMCs might not work after this! 
+	/* Set up our interrupt table.  HPMCs might not work after this! 
 	 *
 	 * We need to install the correct iva for PA1.1 or PA2.0. The
 	 * following short sequence of instructions can determine this
@@ -190,14 +260,35 @@
 	ldo		R%PA(fault_vector_11)(%r10),%r10
 
 $is_pa20:
-	ldil		L%PA(fault_vector_20),%r10
-	ldo		R%PA(fault_vector_20)(%r10),%r10
+	.level		LEVEL /* restore 1.1 || 2.0w */
+	load32		PA(fault_vector_20),%r10
 
 $install_iva:
 	mtctl		%r10,%cr14
 
-	/* Disable Q bit so we can load the iia queue */
-	rsm            PSW_SM_Q,%r0
+#ifdef __LP64__
+	.align          256
+aligned_rfi:
+	ssm             0,0
+	nop             /* 1 */
+	nop             /* 2 */
+	nop             /* 3 */
+	nop             /* 4 */
+	nop             /* 5 */
+	nop             /* 6 */
+	nop             /* 7 */
+	nop             /* 8 */
+#endif
+
+#ifdef __LP64__ /* move to psw.h? */
+#define		PSW_BITS	PSW_Q+PSW_I+PSW_D+PSW_P+PSW_R
+#else
+#define		PSW_BITS	PSW_SM_Q
+#endif
+
+$rfi:	
+	/* turn off troublesome PSW bits */
+	rsm		PSW_BITS,%r0
 
 	/* kernel PSW:
 	 *  - no interruptions except HPMC and TOC (which are handled by PDC)
@@ -205,8 +296,7 @@
 	 *  - big-endian
 	 *  - virtually mapped
 	 */
-	ldil		L%KERNEL_PSW,%r10
-	ldo		R%KERNEL_PSW(%r10),%r10
+	load32		KERNEL_PSW,%r10
 	mtctl		%r10,%ipsw
 
 	/* Set the space pointers for the post-RFI world
@@ -232,6 +322,7 @@
 	.import smp_init_current_idle_task,data
 	.import	smp_callin,code
 
+#ifndef __LP64__
 smp_callin_rtn:
         .proc
 	.callinfo
@@ -239,9 +330,9 @@
 	nop
 	nop
         .procend
+#endif /*!LP64*/
 
 /***************************************************************************
-*
 * smp_slave_stext is executed by all non-monarch Processors when the Monarch
 * pokes the slave CPUs in smp.c:smp_boot_cpus().
 *
@@ -249,8 +340,6 @@
 * mode. Once all available/eligible CPUs are in virtual mode, all are
 * released and start out by executing their own idle task.
 *****************************************************************************/
-
-
 smp_slave_stext:
         .proc
 	.callinfo
@@ -264,28 +353,31 @@
 	mtsp	   %r0,%sr7
 
 	/*  Initialize the SP - monarch sets up smp_init_current_idle_task */
-	ldil		L%PA(smp_init_current_idle_task),%sp
-	ldo		R%PA(smp_init_current_idle_task)(%sp),%sp
-	ldw		0(%sp),%sp	/* load task address */
+	load32		PA(smp_init_current_idle_task),%sp
+	LDREG		0(%sp),%sp	/* load task address */
 	tophys_r1	%sp
-	ldw		TASK_THREAD_INFO(%sp), %sp
+	LDREG		TASK_THREAD_INFO(%sp),%sp
 	mtctl           %sp,%cr30       /* store in cr30 */
-	addil		L%THREAD_SZ_ALGN,%sp	/* stack is above task */
-	ldo		R%THREAD_SZ_ALGN(%r1),%sp
+	ldo             THREAD_SZ_ALGN(%sp),%sp
+#ifdef __LP64__
+	tophys_r1       %sp
+#endif
 
 	/* point CPU to kernel page tables */
-	ldil		L%PA(swapper_pg_dir),%r4
-	ldo		R%PA(swapper_pg_dir)(%r4),%r4
+	load32		PA(swapper_pg_dir),%r4
 	mtctl		%r4,%cr24	/* Initialize kernel root pointer */
 	mtctl		%r4,%cr25	/* Initialize user root pointer */
 
+#ifdef __LP64__
+	/* Setup PDCE_PROC entry */
+	copy            %arg0,%r3
+#else
 	/* Load RFI *return* address in case smp_callin bails */
-	ldil		L%smp_callin_rtn,%r2
-	ldo		R%smp_callin_rtn(%r2),%r2
-
+	load32		smp_callin_rtn,%r2
+#endif
+	
 	/* Load RFI target address.  */
-	ldil		L%smp_callin,%r11
-	ldo		R%smp_callin(%r11),%r11
+	load32		smp_callin,%r11
 	
 	/* ok...common code can handle the rest */
 	b		common_stext
@@ -293,7 +385,7 @@
 
 	.procend
 #endif /* CONFIG_SMP */
-
+#ifndef __LP64__
 	.data
 
 	.align	4
@@ -303,3 +395,4 @@
 	.size	$global$,4
 $global$:	
 	.word 0
+#endif /*!LP64*/
Index: include/asm-parisc/assembly.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/assembly.h,v
retrieving revision 1.3
diff -u -r1.3 assembly.h
--- include/asm-parisc/assembly.h	30 Jul 2004 23:23:20 -0000	1.3
+++ include/asm-parisc/assembly.h	6 Aug 2004 01:28:04 -0000
@@ -26,6 +26,7 @@
 #define STREG	std
 #define LDREGM	ldd,mb
 #define STREGM	std,ma
+#define SHRREG  shrd
 #define RP_OFFSET	16
 #define FRAME_SIZE	128
 #else
@@ -33,14 +34,21 @@
 #define STREG	stw
 #define LDREGM	ldwm
 #define STREGM	stwm
+#define SHRREG  shr
 #define RP_OFFSET	20
 #define FRAME_SIZE	64
 #endif
 
 #ifdef CONFIG_PA20
 #define BL		b,l
+#ifdef CONFIG_PA64
+#define LEVEL 2.0w
+#else
+#define LEVEL 2.0
+#endif
 #else
 #define BL		bl
+#define LEVEL 1.1
 #endif
 
 #ifdef __ASSEMBLY__
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Subject: Re: [parisc-linux] [RFC] head.S merge, take 2
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Xref: news.gmane.org gmane.linux.ports.parisc:21848

On Thu, Aug 05, 2004 at 09:55:54PM -0400, Kyle McMartin wrote:
>  	/* Load the return address...er...crash 'n burn */
>  	copy		%r0,%r2
>
	This tested fine both 32-bit and 64-bit SMP, so I un-#ifdef'd
	it.

> +#ifdef __LP64__
> +	load32          PA(init_thread_union+THREAD_SZ_ALGN),%sp
> +#else
>  	ldo             THREAD_SZ_ALGN(%r6),%sp
> +#endif
>

	Using the 64-bit load32 caused a corruption of the C3000 LCD and
	seemed to hang the box, didn't want to tempt fate.

> +#ifdef __LP64__
> +	/* Prepare to RFI! Man all the cannons! */
> +	tovirt_r1       %sp
> +#endif
> +	

	I'm not sure why we use tovirt/tophys on 64-bit, but not
	32-bit. Could somebody enlighten me?

> +#ifdef __LP64__
> +	.align          256
> +aligned_rfi:
> +	ssm             0,0
> +	nop             /* 1 */
> +	nop             /* 2 */
> +	nop             /* 3 */
> +	nop             /* 4 */
> +	nop             /* 5 */
> +	nop             /* 6 */
> +	nop             /* 7 */
> +	nop             /* 8 */
> +#endif
> +

	This caused 32-bit to HPMC. Figured I best leave well enough
	alone.

> +$rfi:	

	Oops. Was going to branch past the aligned_rfi...
	
> +#ifdef __LP64__
> +	tophys_r1       %sp
> +#endif
>  

	Ditto.

Regards,
-- 
Kyle McMartin
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Subject: Re: [parisc-linux] [RFC] Reorder compat structure placement and
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On Thu, Aug 05, 2004 at 02:59:37PM -0600, Grant Grundler wrote:
> We don't need the same variable name. The two code paths could use different
> labels which point at the same storage. And both could co-exist in
> the wide kernel.

So you just want:


label32:
label64:
        block 8192

In the assembly and then let the C code do whatever it pleases? :)

c.

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Subject: Re: [parisc-linux] [RFC] Reorder compat structure placement and
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> Because a wide kernel can make narrow PDC calls.  (eg C360).
> narrow_stack has to be available regardless which
> way we compile the kernel.

I don't exclude making narrow calls from a wide kernel.
How about something like this? It's actually cleaner to add more
assembly labels.

Index: firmware.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/firmware.c,v
retrieving revision 1.10
diff -u -p -r1.10 firmware.c
--- firmware.c	10 Jul 2004 21:20:47 -0000	1.10
+++ firmware.c	6 Aug 2004 03:49:32 -0000
@@ -237,11 +237,11 @@ int __init pdc_chassis_info(struct pdc_c
 #ifdef __LP64__
 int pdc_pat_chassis_send_log(unsigned long state, unsigned long data)
 {
+	int retval = 0;
+        
 	if (!is_pdc_pat())
 		return -1;
 
-	int retval = 0;
-
 	spin_lock_irq(&pdc_lock);
 	retval = mem_pdc_call(PDC_PAT_CHASSIS_LOG, PDC_PAT_CHASSIS_WRITE_LOG, __pa(&state), __pa(&data));
 	spin_unlock_irq(&pdc_lock);
@@ -1225,29 +1225,30 @@ struct narrow_stack {
 long real32_call(unsigned long fn, ...)
 {
 	va_list args;
-	extern struct narrow_stack real_stack;
+	extern struct narrow_stack real32_stack;
+        
 	extern unsigned long real32_call_asm(unsigned int *,
 					     unsigned int *, 
 					     unsigned int);
 	
 	va_start(args, fn);
-	real_stack.arg0 = va_arg(args, unsigned int);
-	real_stack.arg1 = va_arg(args, unsigned int);
-	real_stack.arg2 = va_arg(args, unsigned int);
-	real_stack.arg3 = va_arg(args, unsigned int);
-	real_stack.arg4 = va_arg(args, unsigned int);
-	real_stack.arg5 = va_arg(args, unsigned int);
-	real_stack.arg6 = va_arg(args, unsigned int);
-	real_stack.arg7 = va_arg(args, unsigned int);
-	real_stack.arg8 = va_arg(args, unsigned int);
-	real_stack.arg9 = va_arg(args, unsigned int);
-	real_stack.arg10 = va_arg(args, unsigned int);
-	real_stack.arg11 = va_arg(args, unsigned int);
-	real_stack.arg12 = va_arg(args, unsigned int);
-	real_stack.arg13 = va_arg(args, unsigned int);
+	real32_stack.arg0 = va_arg(args, unsigned int);
+	real32_stack.arg1 = va_arg(args, unsigned int);
+	real32_stack.arg2 = va_arg(args, unsigned int);
+	real32_stack.arg3 = va_arg(args, unsigned int);
+	real32_stack.arg4 = va_arg(args, unsigned int);
+	real32_stack.arg5 = va_arg(args, unsigned int);
+	real32_stack.arg6 = va_arg(args, unsigned int);
+	real32_stack.arg7 = va_arg(args, unsigned int);
+	real32_stack.arg8 = va_arg(args, unsigned int);
+	real32_stack.arg9 = va_arg(args, unsigned int);
+	real32_stack.arg10 = va_arg(args, unsigned int);
+	real32_stack.arg11 = va_arg(args, unsigned int);
+	real32_stack.arg12 = va_arg(args, unsigned int);
+	real32_stack.arg13 = va_arg(args, unsigned int);
 	va_end(args);
 	
-	return real32_call_asm(&real_stack.sp, &real_stack.arg0, fn);
+	return real32_call_asm(&real32_stack.sp, &real32_stack.arg0, fn);
 }
 
 #ifdef __LP64__
Index: real2.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/real2.S,v
retrieving revision 1.13
diff -u -p -r1.13 real2.S
--- real2.S	15 Mar 2004 20:08:51 -0000	1.13
+++ real2.S	6 Aug 2004 03:49:32 -0000
@@ -14,6 +14,8 @@
 	.export real_stack
 	.align	64
 real_stack:
+real32_stack:
+real64_stack:
 	.block	8192
 
 #ifdef __LP64__
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On Thu, Aug 05, 2004 at 11:51:28PM -0400, Carlos O'Donell wrote:
> I don't exclude making narrow calls from a wide kernel.

ok

> How about something like this? It's actually cleaner to add more
> assembly labels.

Yes - that's basically what I initially had hacked up but
didn't test since I saw you had an alternative posted already.

The only possible problem with multiple labels is gcc won't know
the two labels are aliases. See my previous posting
on this thread. But I don't know if it's really a problem at all
or just an overly active imagination.

grant
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Subject: Re: [parisc-linux] [RFC] Reorder compat structure placement and
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> The only possible problem with multiple labels is gcc won't know
> the two labels are aliases. See my previous posting
> on this thread. But I don't know if it's really a problem at all
> or just an overly active imagination.

You might look at using gcc alias attribute.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] KDB v4.4 support for parisc-linux
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KDB 4.4 support for parisc-linux is now available. 

To use it, first get the arch-indep kdb patch from SGI:
ftp://oss.sgi.com/projects/kdb/download/v4.4/kdb-v4.4-2.6.8-rc2-common-1.bz2

Then apply the parisc-specific patch:
http://ftp.parisc-linux.org/patches/kdb-v4.4-2.6.8-rc2-parisc-1.bz2

Tested in 32-bit UP and 64-bit UP/SMP against 2.6.8-rc2-pa6. There are
still various bugs and unimplemented features, but it might still be
interesting.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] KDB v4.4 support for parisc-linux
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On Fri, Aug 06, 2004 at 03:00:54PM -0700, Randolph Chung wrote:
> KDB 4.4 support for parisc-linux is now available. 
> 
> To use it, first get the arch-indep kdb patch from SGI:
> ftp://oss.sgi.com/projects/kdb/download/v4.4/kdb-v4.4-2.6.8-rc2-common-1.bz2
> 
> Then apply the parisc-specific patch:
> http://ftp.parisc-linux.org/patches/kdb-v4.4-2.6.8-rc2-parisc-1.bz2
> 
> Tested in 32-bit UP and 64-bit UP/SMP against 2.6.8-rc2-pa6. There are
> still various bugs and unimplemented features, but it might still be
> interesting.

Wicked! I'll have to test this right now for my lws changes.

c.

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Subject: Re: [parisc-linux] Re: Calling all experts... ldd, s   0(%sr0, %r26),
	%r1!!!
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Cc: lamont@debian.org,
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On Sat, Aug 07, 2004 at 10:38:51PM -0700, James Bottomley wrote:
> > This would require decoding the space register that the load used, and
> > seeing if it was non-zero. The alternative is just to make the LWS
> > faster and not set sr7 to kernel space, rather use another register to
> > do kernel loads and stores. You suggested this earlier but I didn't have
> > time to work it out.
> 
> The slight problem here is that the gateway page is execute only from
> userspace.  To load data from it, you have to be in kernel space. 
> However, as long as the privilege level is set to high, this should work
> provided you set up a space register for dereferencing the lws.

Yes, the problem here is that I need lock data available for SMP to work
properly. This involves, as you mentioned on IRC, adding another fixed
tlb entry that lets the user RW from lock data. This gets tricky because
such a page is technically visible from userspace and the locks could be
read and written to, messing up *other* CAS operations to other
addresses.

I think I might have to go the following route:

a. Enter kernel space (%r0 -> %sr7)
b. Use prober/probew
c. Add an exception for the user load and store, these happen with
   interrupts off. If such a page is in swap, I need the exception
   code to reenable interrupts and wait for the page to come back.

I *really* don't like 'c.' but it's always there if I have to turn off
interrupts and lock under SMP.  I guess atomic operations need a little
more support than normal operations... :)

c.

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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] [RFC] probe,r and probe,w emulation in the kernel.
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pa,

Added probe,r and probe,w emulation in the nadtlb_emulate path of the
tlb miss handlers. It makes the emulation path 3 insns longer but allows
other kernel asm code to check for invalid user addresses. I use this
code right now in the LWS setup.

Comments are very welcome!

c.

Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/entry.S,v
retrieving revision 1.18
diff -u -p -r1.18 entry.S
--- arch/parisc/kernel/entry.S	30 Jul 2004 23:23:20 -0000	1.18
+++ arch/parisc/kernel/entry.S	8 Aug 2004 06:06:06 -0000
@@ -1443,18 +1443,29 @@ nadtlb_emulate:
 	 * of the instruction. Since we don't insert a translation
 	 * we can get a lot of faults during a flush loop, so it makes
 	 * sense to try to do it here with minimum overhead. We only
-	 * emulate fdc,fic & pdc instructions whose base and index
-	 * registers are not shadowed. We defer everything else to the
-	 * "slow" path.
+	 * emulate fdc,fic,pdc,probew,prober instructions whose base 
+         * and index registers are not shadowed. We defer everything 
+         * else to the "slow" path.
 	 */
 
 	mfctl           %cr19,%r9 /* Get iir */
-	ldi             0x280,%r16
+
+        /* PA 2.0 Arch Ref. Book pg 382 has a good description of the insn bits.
+           Checks for fdc,fdce,pdc,"fic,4f",prober,probeir,probew, probeiw */
+
+	ldi             0x80,%r16
 	and             %r9,%r16,%r17
-	cmpb,<>,n       %r16,%r17,nadtlb_fault /* Not fdc,fic,pdc */
+	cmpb,<>,n       %r16,%r17,nadtlb_fault 
+
+        /* Checks for fdc,fdce,pdc,"fic,4f" only */
+
+        ldi             0x200,%r16
+        and             %r9,%r16,%r17
+        cmpb,<>,n       %r16,%r17,nadtlb_probe /* Must be probe,[rw] */
 	bb,>=,n         %r9,26,nadtlb_nullify  /* m bit not set, just nullify */
 	BL		get_register,%r25
 	extrw,u         %r9,15,5,%r8           /* Get index register # */
+
 	CMPIB=,n        -1,%r1,nadtlb_fault    /* have to use slow path */
 	copy            %r1,%r24
 	BL		get_register,%r25
@@ -1471,6 +1482,26 @@ nadtlb_nullify:
 
 	rfir
 	nop
+
+        /* 
+           When there is no translation for the probew address then we
+           must nullify the insn and return zero in the target regsiter.
+           This will indicate to the calling code that it does not have 
+           write privileges to this address.
+
+           This should technically work for prober and probew in PA 1.1,
+           and also probe,r and probe,w in PA 2.0
+
+        */
+nadtlb_probe:
+        BL              get_register,%r25      /* Find the target register */
+	extrw,u         %r9,31,5,%r8           /* Get target register */
+	CMPIB=,n        -1,%r1,nadtlb_fault    /* have to use slow path */
+	BL		set_register,%r25
+        copy            %r0,%r1                /* Write zero to target register */
+        b nadtlb_nullify                       /* Nullify return insn */
+        nop
+
 
 #ifdef __LP64__
 itlb_miss_20w:
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On Sat, Aug 07, 2004 at 11:55:37PM -0400, John David Anglin wrote:
> > +#ifdef __LP64__
> > +	stb,ma          %r0,1(%r3)
> > +#else
> >  	stw,ma          %r0,4(%r3)
> > +#endif
> 
> This may not matter much but if you can use a stw for the 32-bit path
> you should also be able to use for __LP64__.
>
I tested this using stw,ma on both 32 and 64 bit, thanks!

> I seems like you may be able to get rid of this difference by making
> the destination register the same in the following hunk:
>
Nod. It cleans up a bit of the following code.

> +       ldo             ASM_PMD_ENTRY*ASM_PMD_ENTRY_SIZE(%r5),%r5
> +#else
> +        ldo             ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4),%r4
> +#endif
> 
I'm not entirely sure. The idea of being able to fold 3 level page
tables over 2 level on 32 bit might work here... I should check to see
if the offsets are the same...

Regards,
-- 
Kyle McMartin
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Subject: Re: [parisc-linux] uninline in bitops.c as ia64 or sparc64?
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On Sat July 31 2004 11:58, James Bottomley wrote:
> On Sat, 2004-07-31 at 10:29, Michael S. Zick wrote:
> > How about a different algorithm?
> > Say:: 3 * Log_2 (Register Size)
> 
> This algorithm is a more complex form of generic_ffz() in linux/bitops.h
> 
> perhaps we should use generic_ffz as the basis for this?
> 
generic_ffz is defined as integer - is 'integer' the same size
cpu32 and cpu64?  If not, that routine needs a size-conditional
test for the other 32 bits on cpu64.

Here is a suggested fix for include/asm-parisc/bitops.h -

NOTE 1: I have no way to test this - some needs to check my
work.

NOTE 2: I did try to do this on (electronic) pencil and paper -
You can get the pictures at: <www.goquest.com/~mszick>
as: hpbitfinder.ps.bz2

NOTE 3: Same diff is attached as in-lined, just in case my
mail agent trashes it.

Mike

Index: include/asm-parisc/bitops.h
===================================================================
RCS file: /opt/lib/cvs/parisc/include/asm-parisc/bitops.h,v
retrieving revision 1.1.1.1
diff -u -3 -p -r1.1.1.1 bitops.h
--- a/include/asm-parisc/bitops.h	13 Jul 2004 05:40:29 -0000	1.1.1.1
+++ b/include/asm-parisc/bitops.h	9 Aug 2004 14:33:03 -0000
@@ -217,11 +217,16 @@ static __inline__ int test_bit(int nr, c
  *
  * This algorithm avoids branches by making use of nullification.
  * One side effect of "extr" instructions is it sets PSW[N] bit.
- * How PSW[N] (nullify next insn) gets set is determined by the
+ * How PSW[N] (nullify next insn) gets set is determined by the
  * "condition" field (eg "<>" or "TR" below) in the extr* insn.
  * Only the 1st and one of either the 2cd or 3rd insn will get executed.
  * Each set of 3 insn will get executed in 2 cycles on PA8x00 vs 16 or so
  * cycles for each mispredicted branch.
+ *
+ * Provide either a u64 or u32 version based on cpu register size.
+ * Note that the hard coded field indexes depend on cpu register size;
+ * and the extract instruction generates a right-justified result.
+ * The index numbers are hp-bit-position not radix 2 numbers. <msz>
  */

 static __inline__ unsigned long __ffs(unsigned long x)
@@ -229,14 +234,27 @@ static __inline__ unsigned long __ffs(un
 	unsigned long ret;

 	__asm__(
-#if BITS_PER_LONG > 32
+#ifdef __LP64__
 		" ldi       63,%1\n"
 		" extrd,u,*<>  %0,63,32,%%r0\n"
 		" extrd,u,*TR  %0,31,32,%0\n"	/* move top 32-bits down */
 		" addi    -32,%1,%1\n"
+		" extrd,u,*<>  %0,63,16,%%r0\n"
+		" extrd,u,*TR  %0,47,16,%0\n"   /* xxxx0000 -> 0000xxxx */
+		" addi    -16,%1,%1\n"
+		" extrd,u,*<>  %0,63,8,%%r0\n"
+		" extrd,u,*TR  %0,55,8,%0\n"    /* 0000xx00 -> 000000xx */
+		" addi    -8,%1,%1\n"
+		" extrd,u,*<>  %0,63,4,%%r0\n"
+		" extrd,u,*TR  %0,59,4,%0\n"    /* 000000x0 -> 0000000x */
+		" addi    -4,%1,%1\n"
+		" extrd,u,*<>  %0,63,2,%%r0\n"
+		" extrd,u,*TR  %0,61,2,%0\n"    /* 0000000y, 1100b -> 0011b */
+		" addi    -2,%1,%1\n"
+		" extrd,u,*=  %0,63,1,%%r0\n"   /* check last bit */
+		" addi    -1,%1,%1\n"
 #else
 		" ldi       31,%1\n"
-#endif
 		" extru,<>  %0,31,16,%%r0\n"
 		" extru,TR  %0,15,16,%0\n"	/* xxxx0000 -> 0000xxxx */
 		" addi    -16,%1,%1\n"
@@ -251,6 +269,7 @@ static __inline__ unsigned long __ffs(un
 		" addi    -2,%1,%1\n"
 		" extru,=  %0,31,1,%%r0\n"	/* check last bit */
 		" addi    -1,%1,%1\n"
+#endif
 			: "+r" (x), "=r" (ret) );
 	return ret;
 }



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Subject: Re: [parisc-linux] uninline in bitops.c as ia64 or sparc64?
Date: Mon, 9 Aug 2004 12:15:30 -0500
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On Mon August 9 2004 09:54, Michael S. Zick wrote:
>
-------
> 
> Mike
> 
> Index: include/asm-parisc/bitops.h
> ===================================================================
> RCS file: /opt/lib/cvs/parisc/include/asm-parisc/bitops.h,v
> retrieving revision 1.1.1.1
> diff -u -3 -p -r1.1.1.1 bitops.h
Sorry for the self-reply...

If compiled with 32-bit compiler the NOT(__LP64__) path will compile.
If the resultant program is loaded on a 64-bit machine running 'narrow mode';
it will fail.  Since the mode bit only changes the addressing not the 
bit-position numbering.(1)

Translation:
As submitted, it should compile for 64-bit and run 64-Wide;
it should compile for 32-bit and run 32-bit.
It is only the case of compiling for 32-bit and then trying to
run it on a 64-bit machine in narrow mode that should fail.

I'll work on this - I probably will abuse the shift-right-double
instruction to come up with a compiles correctly, runs anywhere
version.

Two other problems I am considering:

1) It only beats on two (not counting GR0) registers;
it will probably cause register stalls on pipelined machines.

2) It is bigger than a cache line, probably executes in less
than a memory cycle - so it will probably 'starve' the cpu;
waiting for the next memory cycle to fill the next i-cache line.

Taken all together - an interesting problem.

Mike
(1) Does 32-bit gcc ever generate extract/deposit? This might
cause problems running anything 32-bit on 64-bit-narrow.
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From: James Bottomley <James.Bottomley@SteelEye.com>
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Subject: Re: [parisc-linux] How to set Command Queue Depth?
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To: Ruediger Scholz <rscholz@hrzpub.tu-darmstadt.de>
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On Tue, 2004-08-10 at 14:40, Ruediger Scholz wrote:
> I have to install debian onto a new hard disc due to a head crash. I've 
> downloaded the new debian-installer (rc1), but when debian-installer is 
> formatting partitions my machine hangs saying "(scsi drive) is suffering 
> from tag starvation". I know this problem from running 2.4-kernels. 
> Normally I would change the queue depth to 1 in 53c7xx.h, but this is no 
> solution for the debian-installer...
> 
> So, is there a possibility to set the depth of the tag command queue of 
> the lasi Controller during run-time? I tried to use
>                 echo "settags all 1" > /proc/scsi/lasi700/0
> but this command never returns back to command prompt.
> Or can I use some kernel parameters during boot?
> And the last question: Is there a install image using a 2.6 kernel?

The required command is

echo 1 > /sys/bus/scsi/devices/<root device>/queue_depth

James


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] "If futex's were mutex's we'd have a fish fry!" or
	"Why we need LWS on hppa"
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To: parisc-linux@lists.parisc-linux.org,
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fellow hackers,

I continue to work on the light-weight-syscalls infrastructure, and it
seems to be going well. I have to continually rethink what is "correct"
and what is "practical" in terms of an implementation.

I asked for some help on IRC, in particular with some specific topics
regarding unaligned loads and other ugly things. The corner cases are
not so pretty.

It was suggested that CAS could be implemented by:

a. Blocking all blockable signals.
b. Using futex's to create a mutex around the CAS code.

(Thanks James!)

I was excited by the idea, but after reading:
http://people.redhat.com/drepper/futex.pdf

It became apparnet that (b) cannot be acomplished without having
hardware support for "compare and exchange" or "load lock/store"
primities in hardware. Even a broken mutex implementation requires
"atomic increment" which we don't have and is a prime target for
conversion to a LWS.

If you can show me wrong somewhere, please do, otherwise it seems like
we won't get working futex mutex support without having LWS working
first.

Cheers,
Carlos.

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From: Randolph Chung <tausq@debian.org>
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Subject: [parisc-linux] Re: "If futex's were mutex's we'd have a fish fry!"
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> I continue to work on the light-weight-syscalls infrastructure, and it
> seems to be going well. I have to continually rethink what is "correct"
> and what is "practical" in terms of an implementation.

what do you guys think about this?

<tausq> well, can you just make the trap handler notice that you are coming
          from the gatway page, return a specific error code, and then fall
          back to do a regular syscall?
* tausq is thinking that will be cleaner
<tausq> rather than special casing things in many places...
<patofiero> tausq : Yeah, I think the slow path is just going to be really
            slow, and I'll have to teach the intr_save asm to notice that I'm
            a gateway lws and setup appropriately.
<patofiero> more asm!
<patofiero> tausq : The corner casese are getting really ugly.
<tausq> but the thing is, if you are only doing cas once in a while, you don't
          really care that it's a bit slow. if you are doing it a lot (like in
          a loop) it probably will only fault the first time or so
<patofiero> Exactly.
<patofiero> The page will stay hot.
<tausq> so, don't do a lot of special things in intr_save to setup stacks and
<tausq> (this is how futexes work, right?)
<patofiero> they do the reverse, they look for contention from userspace and
            then go into a syscall.
<tausq> similar idea.... look for contention/error in a lws, and then go into
          a syscall
<patofiero> I'll have to think about it.

randolph
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> <tausq> well, can you just make the trap handler notice that you are coming
>           from the gatway page, return a specific error code, and then fall
>           back to do a regular syscall?

You might consider a specific list of addresses to register with the
trap handler.  The general approach seems reasonable to me.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Kyle McMartin <kyle@engsoc.org>
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Subject: Re: [parisc-linux] Install of Debian 30r2 to HP C3600 with USB
	keyboard & mouse.
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On Thu, Aug 12, 2004 at 03:37:39PM +0100, Neville, James wrote:
>    I am trying to install the Debian 30r2 hppa distribution onto a HP C3600.
>    When the first CD is booted the RAM disk loads and I get a nice blue

Hi James,

You may want to try the new installer images for hppa for version 3.1 of
Debian.

http://cdimage.debian.org/pub/cdimage-testing/sarge_d-i/hppa/rc1/sarge-hppa-netinst.iso

I have done significant testing of these images throughout their
development, and found them to work well.

If you could send an installation report mail as here, it would be
fantastic
http://www.nl.debian.org/devel/debian-installer/report-template

Debian 3.1 "sarge" our new stable version will be released around the
15th of September, so you might as well get a head start.

Regards,
-- 
Kyle McMartin
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Subject: Re: [parisc-linux] uninline in bitops.c as ia64 or sparc64?
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On Wed August 11 2004 06:58, Joel Soete wrote:
> 
> Hello *,
> 
> > Subject: Re: [parisc-linux] uninline in bitops.c as ia64 or sparc64?
> > 
> > 
> > On Tue August 10 2004 09:51, John David Anglin wrote:
> > > > On Mon, Aug 09, 2004 at 09:54:08AM -0500, Michael S. Zick wrote:
> > > > > generic_ffz is defined as integer - is 'integer' the same size
> > > > > cpu32 and cpu64?  If not, that routine needs a size-conditional
> > > > > test for the other 32 bits on cpu64.
> > > > 
> > > > Integers are the same size. The 64-bit boxes are LP64.
> > > 
> > > To be more specific, the 'int' types are the same size.  The 'long'
> > > types are different.
> > > 
> Here is the smal test case I tested:
- - - - - - 
> 
> I compile it with James 64bit lib with hppa64-linux-gcc (3.0.4) and run
> it on a b2k (64bit cpu) with 2.6.8-rc2-pa7 64bit.
> That's a long test (reason of delay) but it works fine.
> 
> I also test the 32bit binaries (compile with gcc-3.3.4) runing on the b2k
> with same kernel and it also works fine.
> 
> Please note that I have to abuse the original ffs() code with ULffs() and
> an unsigned long (64bit long for hppa64-gcc) as parameter (the original
> was an integer of 32bit long for 64bit and 32bit gcc).
> 
> hth,
>     Joel
Thanks for the testing and the help Joel.
So I would like the m-l to consider that patch sent
earlier be upgraded from "suggested" to "submitted".

Mike
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Subject: Re: [parisc-linux] Should I read SHR[DW] as SHRP[DW] in parisc2.pdf?
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On Thu August 12 2004 12:41, Jim Hull wrote:
> Joel:
> 
- - - - -
> 
> Does the PA2.0 gnu assembler not recognize these (and other) pseudo-ops? 
Perhaps too well.
If I recall properly, the same table & code is used for both the assembler and
the 'disassemble' (-d) option of objdump.

'objdump -d' tries to be explicit in showing the space register assumed...
but it also displays the pseudo operations rather than the actual operation.
(Grumble, Grumble)

I think that Joel's question comes from (his and my) wondering if we need to
make 'machine independent' defines of some of these instructions.
According to Appendix J - we don't - the PA1.1 codes will assemble for
PA2.0 (with HP's assembler).
Time will show if gcc-inline assembly is that nice to we programmers.

Mike
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Testers required please (test-lws, test-probe)! :)
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list,

What happens when you run these tests, as non-root, on your box?

http://cvs.parisc-linux.org/userspace/test-lws
http://cvs.parisc-linux.org/userspace/test-probe

Check out the above tests, make should build the test then just run the
single resulting executable and send back the results.

You run the tests at your own risk, they shouldn't damage your box, but
please tell me what they do on your box, including the output of dmesg 
(e.g. dmesg -c; <Run test>; dmesg >& email.txt; ) after running the
test.

Cheers,
Carlos.

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Subject: [parisc-linux] C3000 HPMC with high NFS traffic. 99% it's ASTRO's
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pa,

Thoughts?

kernel BUG at kernel/printk.c:590!
Backtrace:
 [<10129bac>] acquire_console_sem+0x2c/0x88
 [<1012a134>] unregister_console+0x18/0x88
 [<101168e8>] pdc_console_restart+0x4c/0x68
 [<10108d10>] handle_interruption+0x30/0x560
 [<10110088>] intr_check_sig+0x0/0xc

kernel BUG at kernel/printk.c:590!
Backtrace:
 [<10129bac>] acquire_console_sem+0x2c/0x88
 [<1012a134>] unregister_console+0x18/0x88
 [<101168e8>] pdc_console_restart+0x4c/0x68
 [<10108d10>] handle_interruption+0x30/0x560
 [<10110088>] intr_check_sig+0x0/0xc

kernel BUG at kernel/printk.c:590!
Backtrace:
 [<10129bac>] acquire_console_sem+0x2c/0x88
 [<10129fb0>] register_console+0xa8/0x214
 [<10108d10>] handle_interruption+0x30/0x560
 [<10110088>] intr_check_sig+0x0/0xc

Backtrace:
 [<10108c8c>] parisc_terminate+0x60/0xb4
 [<10108e24>] handle_interruption+0x144/0x560
 [<10110088>] intr_check_sig+0x0/0xc

High Priority Machine Check (HPMC): Code=1 regs=103b1080
(Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111000001110 Not tainted
r00-03  00000000 104a6010 10117f5c 4fdee220
r04-07  4fdee2a8 00000011 37861900 4fdee000
r08-11  00000000 4da3e060 4da3e19c 00000000
r12-15  000005a8 00073748 00000040 00000000
r16-19  00000070 3f1042cc 00000000 fed30000
r20-23  00000000 4fdf3910 10230470 00000080
r24-27  00000000 fee01008 4ffb6a40 103ae010
r28-31  5e601f03 00000000 3f1047c0 10117f5c
sr0-3   00000000 00000000 00000000 00000059
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10230498 1023049c
 IIR: 0e600193    ISR: a627fffb  IOR: 4c130000
 CPU:        0   CR30: 3f104000 CR31: 10444000
 ORIG_R28: 00000000
 IAOQ[0]: lba_astro_out32+0x28/0x38
 IAOQ[1]: lba_astro_out32+0x2c/0x38
 RP(r2): outl+0x5c/0x78
---

CVS head, 32-bit kernel, 2.6.8-rc2-pa7.

processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8500 (PCX-W)
cpu MHz         : 400.000000
model           : 9000/785/C3000
model name      : AllegroHigh W
hversion        : 0x00005bb0
sversion        : 0x00000481
I-cache         : 512 KB
D-cache         : 1024 KB (WB, 0-way associative)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
BTLB            : not supported
bogomips        : 799.53
software id     : 2011698862

Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. AllegroHigh W at 0xfffa0000 [32] { 0, 0x0, 0x5bb, 0x00004 }
7. Memory at 0xfed10200 [49] { 1, 0x0, 0x086, 0x00009 }
CPU(s): 1 x PA8500 (PCX-W) at 400.000000 MHz
SBA found Astro 2.1 at 0xfed00000
lba version TR2.1 (0x2) found at 0xfed30000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
PCI: Enabled native mode for NS87415 (pif=0x8f)
lba version TR2.1 (0x2) found at 0xfed32000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
lba version TR2.1 (0x2) found at 0xfed38000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
iosapic: hpa not registered for 0000:02:03.0
lba version TR2.1 (0x2) found at 0xfed3c000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
iosapic: hpa not registered for 0000:03:02.0

c.

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> Time will show if gcc-inline assembly is that nice to we programmers.

The PA-RISC GNU assembler was never intended to be a general purpose
assembler.  Features that GCC doesn't use are probably not that well
tested ;)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] C3000 HPMC with high NFS traffic. 99% it's ASTRO's
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On Fri, 2004-08-13 at 12:56, Stan Sieler wrote:
> If it helps, the instruction trapping appears to be:
>     LDWAX    0(0,19),19
> and r19 has fed30000 ... an I/O space address.

Actually that's the back end of a LBA I/O cycle generation (this is the
actual read that guarantees completion semantics---see lba_pci.c).  The
HPMC occurred because port 0x1008 timed out on an outl, I think.

That's tulip register CSR1 (i.e. the tulip driver was trying to force an
immediate transmit).  I assume this must be either because the tulip
failed to respond to the outl in time or because the Astro couldn't get
on the bus in time.

James


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On Fri August 13 2004 10:20, John David Anglin wrote:
> > Time will show if gcc-inline assembly is that nice to we programmers.
> 
> The PA-RISC GNU assembler was never intended to be a general purpose
> assembler.  Features that GCC doesn't use are probably not that well
> tested ;)
> 
That is what I meant - we are on a 'feature discovery' trip here.

I did cheat a bit - I studied the pa.md file - figured that if what I was
interested in wasn't there, I need to be careful about using it.

Also discovered that software integer divide uses a similar bit-finder
to what I have proposed in the past. (Immediate, magic number,
bit masks).

But I have had that proposal turned down often enough - 
Even though it can be written to avoid register stalls; works
run-time, register size independent; does not dirty a d-cache
line and returns the bit-mask for the found bit 
(or the input mask modified by the found bit)
in addition to the index without additional instructions.
Which makes it ideal for all of those 'find next bit' loops.

Mike

> Dave
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Subject: Re: [parisc-linux] uninline in bitops.c as ia64 or sparc64?
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On Thu August 12 2004 08:59, Michael S. Zick wrote:
> On Wed August 11 2004 06:58, Joel Soete wrote:
> > 
> > Please note that I have to abuse the original ffs() code with ULffs() and
> > an unsigned long (64bit long for hppa64-gcc) as parameter (the original
> > was an integer of 32bit long for 64bit and 32bit gcc).
> > 
> > hth,
> >     Joel
> Thanks for the testing and the help Joel.
> So I would like the m-l to consider that patch sent
> earlier be upgraded from "suggested" to "submitted".
> 
Just a PS...
include/asm-parisc/bitops.h:: int fls(int x)
Is only scanning the sign (or zero) extension of an integer
on 64-bit machines.

Any objections if I submit a fix for that one also?

Mike
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Subject: Re: [parisc-linux] Should I read SHR[DW] as SHRP[DW] in parisc2.pdf?
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On Wed August 11 2004 12:35, Joel Soete wrote:
> Hi all,
> 
> About parisc 2.0 insn set at pages 7-49 and 7-51 I read SHRD,S,cond ...
> and SHRW,S,cond ... but I don't find this mnemonic elsewhere in this book;
> should I better read SHRPD and SHRPW respectively (mnemonic well defined)?
> 
Write as 'shd' either parisc-1.x or parisc-2.x for 32-bit operations.
I cut & pasted an example into a test source file, compiled (32 & 64),
objdump'd the *.o, then with the help of a hex-editor and
my Captain Midnight Decoder ring on the results:
	__asm__(
	"	ldi		0,%1\n"

/* compile & objdump the *.o; both 32-bit and 64-bit */
	"	shd		%%r0,%0,16,%2\n"	
	"	extru,=	%2,15,16,%%r0\n"	

/* Yields (see parisc2.0.pdf, appendix 'C'):
32-bit:
major op-code: 34, op-code extension: 011 (3)
  5c:   d2 80 09 f4     shrpw r0,r20,16,r20

major op-code: 34, op-code extension: 111 (7)
  60:   d2 80 39 f0     extrw,u,= r20,15,16,r0

Also on 64-bit, the identical bit pattern:
  80:   d2 80 09 f4     shrpw r0,r20,16,r20
  84:   d2 80 39 f0     extrw,u,= r20,15,16,r0

Then checking chapter 7 on 'shrpw' it very clearly
states that this instruction effects only the right
half of the registers. (no mention of left half)

Then checking chapter 7 on 'extrw' and it states
that the coded bit-position-number is internally
incremented by 32 so that it actually refers to (in
this example) pos=15+32, len=16.
(Claims left half is 'undefined')

Which means that 'int fls(int x)' as written would 
get its bit-position-numbers translated internally.
(and my earlier posting about it scanning the high
32 bits was wrong).

I still haven't figured out how the author gets that
the last bit to test is #0 rather than #31 - but then
that might be a typo in the code or another thinko
in my reasoning.
*/

Mike
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Subject: Re: [parisc-linux] Should I read SHR[DW] as SHRP[DW] in parisc2.p
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>   80:   d2 80 09 f4     shrpw r0,r20,16,r20
>   84:   d2 80 39 f0     extrw,u,= r20,15,16,r0
> 
> Then checking chapter 7 on 'shrpw' it very clearly
> states that this instruction effects only the right
> half of the registers. (no mention of left half)

It actually says for 'shrpw' that the leftmost 32 bits of the target
register (r20) are undefined.  If you had used a different target
register, r20 would not have been affected.

The condition in the 'extrw', "=", checks that all bits in the "word"
are zero.  The leftmost 32 bits in r20 are again undefined as a
result of the 'extrw' instruction.  However, they don't matter as the
target of the extrw is r0 (result discarded) and the condition test
only checks the rightmost 32 bits (word).

You need to be aware that a word is 32 bits and a double word 64 bits
in HP lingo.

The documentation is a bit vague when it comes to condition tests
when a result is discarded, but I believe that the test is done
before the result is discarded.  It doesn't make any sense to test
r0 which always reads as zero.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Should I read SHR[DW] as SHRP[DW] in parisc2.p
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On Fri August 13 2004 19:27, John David Anglin wrote:
> >   80:   d2 80 09 f4     shrpw r0,r20,16,r20
> >   84:   d2 80 39 f0     extrw,u,= r20,15,16,r0
> > 
> > Then checking chapter 7 on 'shrpw' it very clearly
> > states that this instruction effects only the right
> > half of the registers. (no mention of left half)
> 
> It actually says for 'shrpw' that the leftmost 32 bits of the target
> register (r20) are undefined.  If you had used a different target
> register, r20 would not have been affected.
> 
I need to learn to read better.

> 
> The documentation is a bit vague when it comes to condition tests
> when a result is discarded, but I believe that the test is done
> before the result is discarded.  It doesn't make any sense to test
> r0 which always reads as zero.
> 
Another vague thing -
Can you get a register stall (interlock) against gr0?
I.E:
op-code ....,destination Rx
op-code source Rx, .....
must wait for the store to Rx to be retired.
If Rx is GR0 - will the behavior be the same?
In tech. terms...
Is the discard prior to the retire stage of the
pipeline?
Is the discard even earlier than that in the pipeline? 
Does reference to GR0 count against the two 
register limit on issues?

I can find a partial answer - if the operation referencing
GR0 changes the flags - it seems that you can stall 
against the update of the flags in the PSW.
(or at least that would be reasonable to expect).

Mike
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Cc: James Bottomley <James.Bottomley@steeleye.com>,
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pa,

I believe that handle_interruption should honour the previous state of
the I-bit and should save/restore the state around the rest of the
functions.

For example if some assembly code traps with I-bit off, when it comes
back to the code the I-bit should still be off, even it had been
temporarily turned on for the sake of the trap.

What do people think? I wonder if I can get jsm's quick comment on this
fact, he mentioned at OLS that he thought we should probably be
saving/restoring I-bit state from the exception handler.

Cheers,
Carlos.

Index: arch/parisc/kernel/traps.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/traps.c,v
retrieving revision 1.18
diff -u -p -r1.18 traps.c
--- arch/parisc/kernel/traps.c	9 Aug 2004 16:38:41 -0000	1.18
+++ arch/parisc/kernel/traps.c	17 Aug 2004 18:50:15 -0000
@@ -431,11 +431,15 @@ void handle_interruption(int code, struc
 	unsigned long fault_address = 0;
 	unsigned long fault_space = 0;
 	struct siginfo si;
+	unsigned long flags;
 
-	if (code == 1)
+	if (code == 1) {
 	    pdc_console_restart();  /* switch back to pdc if HPMC */
-	else
+	}
+	else {
+	    local_irq_save(flags);
 	    local_irq_enable();
+	}
 
 #if 0
 	printk(KERN_CRIT "Interruption # %d\n", code);
@@ -710,6 +714,9 @@ void handle_interruption(int code, struc
 	}
 
 	do_page_fault(regs, code, fault_address);
+	/* We know we are note code==1, the first case
+	   handles this. So we restore the PSW state */
+	local_irq_restore(flags);
 }
 
 
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	fault?
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On Fri, Aug 13, 2004 at 10:55:58AM -0400, Carlos O'Donell wrote:
> High Priority Machine Check (HPMC): Code=1 regs=103b1080
> (Addr=00000000)

FYI, my c3600 at work also HPMC'd with tg3 stuff on the stack.
It crashed again while I was out of town and will see if it's
the same fingerprint. IIRC, this c3600 is running 2.6.4 kernel 
and was just recently started being use as system-imager server.
(in addition to the http/ftp services it advertises).

grant
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Moin!

       Invitation to the Oldenburg Linux Developers Meeting #9
       -------------------------------------------------------

Executive summary:

URL:   http://oldenburger.linuxtage.de/Oldenburg2004/
What:  Oldenburg Linux Developers Meeting #9
Who:   Every developer interested in Linux on non-i386 platforms
       Every developer interested in developing the debian-installer
When:  September, 22nd to 26th (Wednesday noon to Sunday afternoon)
Where: University of Oldenburg, science building in Oldenburg Wechloy
Orga:  ffis e.V., Martin 'Joey' Schulze


Keeping the tradition alive we will organise another Linux developers
meeting in Oldenburg this year at the last weekend of September.  This
year, however, we will be able to use the facility from Wednesday to
Sunday, hence, one day longer than before.

There were loud complaints last year about the meeting being too
short, so it will be extended by one day this time.  The meeting will
take place at the University of Oldenburg in the scientific building
in Oldenburg Wechloy.

the goal of this developers meeting is to provide developers a means
to work in common on the non-i386 Linux ports and related topics and
to further the exchange of ideas and discussion about the several
ports.

We will have dedicated working and sleeping rooms as before.  We
should be able to use three more rooms during the nights in case the
number of attending developers is too high for the two dedicated
sleeping rooms.  We will be able to use the shower facility of the
sports department nearby.

This year Debian developers will join us again for work on the new
debian-installer.  They will probably want to test the installer on
some "obscure" hardware they don't normally have access to, so don't
worry if you should receive such a request.

We will have dinner together in a restaurant in the evening.  A
preliminary plan is on the web already, but the restaurants and the
order may still change.  We will have a barbecue on Friday for this is
the tenth developers meeting already.

As usual we will have a never-ending breakfast in the large working
room.  I will get rolls each morning and ensure that there will be
butter, cheese, saussages, jam, Nutella and stuff.  I'll also take
care of non-alcoholic fluids.

Attendance is free of cost including food and beverage in the working
rooms (although we are always thankful for donations, EUR 10-20 per
person should cover the expenses).  However, for the barbecue on
Friday instead of a restaurant we would be thankful if you could take
a stake in the expenses, EUR 5-10 should cover the costs.

Beside machines, equipment and documentation you'll need to take with
you a sleeping bag, maybe a camping mat or cot, towels, shower suff,
personal toilett stuff, maybe medicine, clothes, mug and plate are
optional but helpful.

You'll find routing information on the website mentioned above.

If you would like to attend the meeting, please send back the
following form, so that we can calculate space, power and food.

Name ................:

Date of arrival .....: ( ) Wednesday, Sep, 22nd
                       ( ) Thursday, Sep, 23rd
                       ( ) Friday, Sep, 24th 
                       ( ) Saturday, Sep, 25th

Date of departure ...: ( ) Friday, Sep. 24th
                       ( ) Saturday, Sep. 25th
                       ( ) Sunday, Sep. 26th

[ ] Vegetarian (only needed for the barbecue)

___ usable seats in my car, once arrived (only if you come by car)

Special requirements for food: ______________________

If you come by train/plane and want me to pick up up in Bremen or
Oldenburg, please drop me the exact arrival and departure times as
well.

If you have any further questions, please don't hesitate to ask me.

Regards,

	Joey

-- 
A mathematician is a machine for converting coffee into theorems.   Paul Erds

Please always Cc to me when replying to me on the lists.


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Martin Schulze wrote:
> Moin!
> 
>        Invitation to the Oldenburg Linux Developers Meeting #9
>        -------------------------------------------------------
> 
> Executive summary:
> 
> URL:   http://oldenburger.linuxtage.de/Oldenburg2004/

Correct URL is <http://meeting.ffis.de/Oldenburg2004/>.  The above
domain got lost unfortunately.

> What:  Oldenburg Linux Developers Meeting #9
> Who:   Every developer interested in Linux on non-i386 platforms
>        Every developer interested in developing the debian-installer
> When:  September, 22nd to 26th (Wednesday noon to Sunday afternoon)
> Where: University of Oldenburg, science building in Oldenburg Wechloy
> Orga:  ffis e.V., Martin 'Joey' Schulze

> If you would like to attend the meeting, please send back the
> following form, so that we can calculate space, power and food.
> 
> Name ................:
> 
> Date of arrival .....: ( ) Wednesday, Sep, 22nd
>                        ( ) Thursday, Sep, 23rd
>                        ( ) Friday, Sep, 24th 
>                        ( ) Saturday, Sep, 25th
> 
> Date of departure ...: ( ) Friday, Sep. 24th
>                        ( ) Saturday, Sep. 25th
>                        ( ) Sunday, Sep. 26th
> 
> [ ] Vegetarian (only needed for the barbecue)
> 
> ___ usable seats in my car, once arrived (only if you come by car)
> 
> Special requirements for food: ______________________
> 
> If you come by train/plane and want me to pick up up in Bremen or
> Oldenburg, please drop me the exact arrival and departure times as
> well.
> 
> If you have any further questions, please don't hesitate to ask me.

Regards,

	Joey

-- 
A mathematician is a machine for converting coffee into theorems.   Paul Erds

Please always Cc to me when replying to me on the lists.


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Subject: [parisc-linux] [PATCH] Add LWS, Add atomic CAS. Please review! :)
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Xref: news.gmane.org gmane.linux.ports.parisc:21880


parisc,

Skip to the bottom and review the patch please :)

The following code adds light-weight-syscall infrastructure to parisc.
There are a couple of issues one should understand:

a. The user calls an LWS by a similar method to making a syscall,
   you jump to an entry point on the gateway page. I merely took 
   one of those addresses and made it the LWS entry.

b. All the code for the LWS runs with the users space ids in every
   sr except sr2, which is used to access all kernel data. The only 
   kernel data we currently access is a set of SMP locks for CAS.
   We do not load the kernel space because we want the exception
   handlers to *think* it's just a userspace program and kill it 
   when it does bad things (as opposed to killing the kernel).

c. The fast path is very fast. The slow path is *very* slow.
   I've provided code to test LWS with cr16 timing, please examine

        http://cvs.parisc-linux.org/userspace/test-lws/

The following is the list of testing I've done:

0. Tested on two 32-bit systems, 712/100 and C3000, UP and SMP.
   Userspace test completes without issue.

1. Build tested the 64-bit changes, haven't been able to boot
   a 64-bit box with a new kernel. If someone wants to build a 64-bit
   kernel and run the userspace test I would be appreciated!

The tests covers the following:

a. Testing CAS.
b. Testing calling LWS with invalid LWS #.
c. Testing CAS with invalid addresses.
d. Testing CAS with unaligned addresses.
e. Testing CAS over swapped out pages under high memory pressure.

Tests I want to write:

a. Multithreaded, attempting to deliver kills to children while
   they try to CAS. Here I attempt to show that you *can not* deliver a
   kill signal to a thread while it is in the middle of CAS. The only
   way to prove this is to compile with SMP and show that the locks are
   not being unlocked. Usually you prove this by having a signal handler
   that tries CAS again on the same adress, which will deadlock because
   the handler is in the middle of the mutex we try to make in CAS.

Here is the patch, ok to apply?

Index: arch/parisc/kernel/syscall.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/syscall.S,v
retrieving revision 1.12
diff -u -p -r1.12 syscall.S
--- arch/parisc/kernel/syscall.S	26 Apr 2004 15:57:53 -0000	1.12
+++ arch/parisc/kernel/syscall.S	15 Aug 2004 20:55:46 -0000
@@ -16,6 +16,8 @@
 #include <asm/assembly.h>
 #include <asm/processor.h>
 
+#include <linux/config.h> /* for CONFIG_SMP */
+
 #ifdef __LP64__
 	.level          2.0w
 #else
@@ -38,21 +40,62 @@
 	.align 4096
 linux_gateway_page:
 
-	.rept 56
+        /* ADDRESS 0x00 to 0xb0 = 176 bytes / 4 bytes per insn = 44 insns */
+	.rept 44
+	break   0,0
+	.endr
+
+	/* ADDRESS 0xb0 to 0xd8, lws uses 2 insns for entry */
+	/* Light-weight-syscall entry must always be located at 0xb0 
+
+		r20 - lws number
+		r26,r25,r24,r23,r22 - Input registers
+		r28 - Function return register
+		r21 - Error code.
+
+		Scracth: Any of the above that aren't being
+		currently used, including r1. 
+
+		Return pointer: r31 (Not usable)
+	*/
+
+/* WARNING: Keep this number updated with table size changes */
+#define __NR_lws_entries (1)
+
+/* Relocate symbols assuming linux_gateway_page is mapped
+   to virtual address 0x0 */
+#if defined(__LP64__)
+#  define LWS_ENTRY(_name_) .dword lws_##_name_ - linux_gateway_page
+#else
+#  define LWS_ENTRY(_name_) .word  lws_##_name_ - linux_gateway_page
+#endif
+
+lws_entry:
+	/* Unconditional branch to lws_start, located on the 
+	   same gateway page */
+	b lws_start
+	nop
+
+	/* Fill from 0xb8 to 0xe0 */
+	.rept 10
 	break   0,0
 	.endr
 
+	/* This function MUST be located at 0xe0 for glibc's threading 
+	mechanism to work. DO NOT MOVE THIS CODE EVER! */
 set_thread_pointer:
 	gate	.+8, %r0		/* increase privilege */
 	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
 	be	0(%sr7,%r31)		/* return to user space */
 	mtctl	%r26, %cr27		/* move arg0 to the control register */
 
+	/* Increase the chance of trapping if random jumps occur to this
+	address, fill from 0xf0 to 0x100 */
 	.rept 4
 	break   0,0
 	.endr
 
-/* This address must remain fixed, or user binaries go splat. */
+/* This address must remain fixed at 0x100 for glibc's syscalls to work */
 	.align 256
 linux_gateway_entry:
 	gate	.+8, %r0			/* become privileged */
@@ -177,11 +220,8 @@ linux_gateway_entry:
 	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
 	b,n	.Lsyscall_nosys
 	
-#ifdef __LP64__
-	ldd,s   %r20(%r19), %r19
-#else
-	ldwx,s  %r20(%r19), %r19
-#endif
+	LDREGX  %r20(%r19), %r19
+
 	/* If this is a sys_rt_sigreturn call, and the signal was received
 	 * when not in_syscall, then we want to return via syscall_exit_rfi,
 	 * not syscall_exit.  Signal no. in r20, in_syscall in r25 (see
@@ -291,11 +331,8 @@ tracesys_next:	
 	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
 	b,n	.Lsyscall_nosys
 
-#ifdef __LP64__
-	ldd,s   %r20(%r19), %r19
-#else
-	ldwx,s  %r20(%r19), %r19
-#endif
+	LDREGX  %r20(%r19), %r19
+
 	/* If this is a sys_rt_sigreturn call, and the signal was received
 	 * when not in_syscall, then we want to return via syscall_exit_rfi,
 	 * not syscall_exit.  Signal no. in r20, in_syscall in r25 (see
@@ -344,6 +381,172 @@ tracesys_sigexit:
 	ldil	L%syscall_exit_rfi,%r1
 	be,n	R%syscall_exit_rfi(%sr7,%r1)
 
+
+	/* Light-weight-syscall code */
+
+lws_start:
+	/* Gate and ensure we return to userspace */
+	gate	.+8, %r0
+	depi	3, 31, 2, %r31
+
+        /* Is the lws entry number valid? */
+	comiclr,>>=	__NR_lws_entries, %r20, %r0
+	b,n	lws_exit_nosys
+
+	/* WARNING: Trashing sr2 and sr3 */
+	mfsp	%sr7,%r1			/* get userspace into sr3 */
+	mtsp	%r1,%sr3
+	mtsp	%r0,%sr2			/* get kernel space into sr2 */
+
+	/* Load table start */
+	ldil	L%lws_table, %r1
+	ldo	R%lws_table(%r1), %r28	/* Scratch use of r28 */
+	LDREGX	%r20(%sr2,r28), %r20
+
+	/* Jump to lws, lws table pointers already relocated */
+	be,n	0(%sr2,%r20)
+	/* WARNING: lws must issue the return to userspace! */
+
+lws_exit_nosys:
+	/* Return to userspace */
+	be	0(%sr3, %r31)
+	ldo	-ENOSYS(%r0),%r21		   /* set errno */
+
+lws_compare_and_swap:
+	/*
+		Implementing CAS as an atomic operation:
+
+		%r26 - Address to examine
+		%r25 - Old value to check (old)
+		%r24 - New value to set (new)
+		%r28 - Return prev through this register.
+
+		Scratch: r20, r28, r1
+	*/
+
+#ifdef CONFIG_SMP
+	.import lws_lock_start
+	/* Load start of lock table */
+	ldil	L%lws_lock_start, %r20
+	ldo	R%lws_lock_start(%r20), %r28
+
+	/* Extract four bits from r26 and hash lock (Bits 4-7) */
+	extru  %r26, 27, 4, %r20
+
+	/* Find lock to use, the hash is either one of 0 to
+	   15, multiplied by 16 (keep it 16-byte aligned)
+	   and add to the lock table offset. */
+	shlw	%r20, 4, %r20
+	add	%r20, %r28, %r20
+#endif
+
+cas_lock_loop:
+	rsm	PSW_SM_I, %r0
+
+#ifdef CONFIG_SMP
+	ldcw	0(%sr2,%r20), %r28
+	cmpb,<>,n	%r0, %r28, cas_action
+	ssm	PSW_SM_I, %r0
+	ldw	0(%sr2,%r20), %r28
+cas_read_loop:
+	cmpb,=,n	%r0, %r28, cas_read_loop
+	ldw	0(%sr2,%r20), %r28
+	b	cas_lock_loop
+#endif
+
+	/*
+		prev = *addr;
+		if ( prev == old )
+		  *addr = new;
+		return prev;
+	*/
+
+cas_action:
+	/* The load and store could fail */
+1:	ldw	0(%sr3,%r26), %r28
+	sub,<>	%r28, %r25, %r0
+2:	stw	%r24, 0(%sr3,%r26)
+	/* No errors */
+	copy	%r0, %r21
+#ifdef CONFIG_SMP
+	/* Free lock */
+	stw	%r20, 0(%sr2,%r20)
+#endif
+	/* Return to userspace */
+	be	0(%sr3, %r31)
+	/* Turn I-bit back on */
+	ssm	PSW_SM_I, %r0
+
+3:		
+	/* Error occured on load or store */
+#ifdef CONFIG_SMP
+	/* Free lock */
+	stw	%r20, 0(%sr2,%r20)
+#endif
+	/* Turn I-bit back on */
+	ssm	PSW_SM_I, %r0
+	be	0(%sr3, %r31)
+	ldo	-EFAULT(%r0),%r21		   /* set errno */
+
+	/* Two exception table entries, one for the load,
+	   the other for the store. Either return -EFAULT */
+	.section __ex_table,"aw"
+#ifdef __LP64__
+	.dword	2b - linux_gateway_page
+	.dword	(3b - 2b) 
+#else
+	.word	2b - linux_gateway_page
+	.word	(3b - 2b) 
+#endif
+	.previous
+
+	.section __ex_table,"aw"
+#ifdef __LP64__
+	.dword	1b - linux_gateway_page
+	.dword	(3b - 1b) 
+#else
+	.word	1b - linux_gateway_page
+	.word	(3b - 1b) 
+#endif
+	.previous
+
+end_compare_and_swap:
+
+
+	/* Make sure nothing else is placed on this page */
+
+	.align 4096
+	.export end_linux_gateway_page
+end_linux_gateway_page:
+
+	/*
+		All light-weight-syscall atomic operations 
+		will use this set of locks 
+	*/
+	.section .data
+	.align 4096
+	.export lws_lock_start
+lws_lock_start:
+	/* lws locks */
+	.align 16
+	.rept 16
+	/* Keep locks aligned at 16-bytes */
+	.word 1
+	.word 1
+	.word 1
+	.word 1
+	.endr
+	.previous
+
+	.align 4096
+	/* Light-weight-syscall table */
+	/* Start of lws table. */
+	/* FIXME: global symbol */
+lws_table:
+	LWS_ENTRY(compare_and_swap)	/* 0 - Atomic compare and swap */
+lws_end_table:
+	/* End of lws table */
+
 	.align 4096
 	.export sys_call_table
 .Lsys_call_table:
@@ -359,10 +562,4 @@ sys_call_table64:
 #include "syscall_table.S"
 #endif
 
-
-	/* Make sure nothing else is placed on this page */

From - Thu Nov 08 21:32:22 2018
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] LWS Ready for use.
Date: Sat, 21 Aug 2004 02:31:21 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:21881

On Sat, Aug 21, 2004 at 12:22:56AM -0600, Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	carlos	04/08/21 00:22:56
> 
> Modified files:
> 	arch/parisc/kernel: syscall.S 
> 
> Log message:
> Add light-weight-syscall suppor to parisc. The first LWS is
> atomic CAS.

Light-Weight-Syscalls:

Are ready for use.

If you want to learn how they work, checkout the code in test-lws, I've
even provided a simple stub setup to see what a CAS call from userspace
would be like.

http://cvs.parisc-linux.org/userspace/test-lws/

Provided in the patch is two CAS functions, one for ELF32 processes to
call, the other for ELF64 processes to call. This way I get ready for a
64-bit userspace and I don't have to go changing anything. The reason
they need different entry points is that a wide kernel needs to clear
the upper part of the 64-bit registers when called by an ELF32 process.

Pro:

Lower cost to call an LWS! Faster! Atomic operation! No signals while on
the gateway page.

Con:

Written in assembly. Only supported in newer kernels. Old kernels will
crash if you try to call an LWS.

Index: arch/parisc/kernel/syscall.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/syscall.S,v
retrieving revision 1.12
diff -u -p -r1.12 syscall.S
--- arch/parisc/kernel/syscall.S	26 Apr 2004 15:57:53 -0000	1.12
+++ arch/parisc/kernel/syscall.S	21 Aug 2004 06:21:09 -0000
@@ -16,6 +16,14 @@
 #include <asm/assembly.h>
 #include <asm/processor.h>
 
+	/* We fill the empty parts of the gateway page with
+ 	 * something that will kill the kernel or a
+ 	 * userspace application.
+	 */
+#define KILL_INSN	break	0,0
+
+#include <linux/config.h> /* for CONFIG_SMP */
+
 #ifdef __LP64__
 	.level          2.0w
 #else
@@ -38,21 +46,41 @@
 	.align 4096
 linux_gateway_page:
 
-	.rept 56
-	break   0,0
+        /* ADDRESS 0x00 to 0xb0 = 176 bytes / 4 bytes per insn = 44 insns */
+	.rept 44
+	KILL_INSN
 	.endr
 
+	/* ADDRESS 0xb0 to 0xb4, lws uses 1 insns for entry */
+	/* Light-weight-syscall entry must always be located at 0xb0 */
+	/* WARNING: Keep this number updated with table size changes */
+#define __NR_lws_entries (2)
+
+lws_entry:
+	/* Unconditional branch to lws_start, located on the 
+	   same gateway page */
+	b,n	lws_start
+
+	/* Fill from 0xb4 to 0xe0 */
+	.rept 11
+	KILL_INSN
+	.endr
+
+	/* This function MUST be located at 0xe0 for glibc's threading 
+	mechanism to work. DO NOT MOVE THIS CODE EVER! */
 set_thread_pointer:
 	gate	.+8, %r0		/* increase privilege */
 	depi	3, 31, 2, %r31		/* Ensure we return into user mode. */
 	be	0(%sr7,%r31)		/* return to user space */
 	mtctl	%r26, %cr27		/* move arg0 to the control register */
 
+	/* Increase the chance of trapping if random jumps occur to this
+	address, fill from 0xf0 to 0x100 */
 	.rept 4
-	break   0,0
+	KILL_INSN
 	.endr
 
-/* This address must remain fixed, or user binaries go splat. */
+/* This address must remain fixed at 0x100 for glibc's syscalls to work */
 	.align 256
 linux_gateway_entry:
 	gate	.+8, %r0			/* become privileged */
@@ -177,11 +205,8 @@ linux_gateway_entry:
 	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
 	b,n	.Lsyscall_nosys
 	
-#ifdef __LP64__
-	ldd,s   %r20(%r19), %r19
-#else
-	ldwx,s  %r20(%r19), %r19
-#endif
+	LDREGX  %r20(%r19), %r19
+
 	/* If this is a sys_rt_sigreturn call, and the signal was received
 	 * when not in_syscall, then we want to return via syscall_exit_rfi,
 	 * not syscall_exit.  Signal no. in r20, in_syscall in r25 (see
@@ -291,11 +316,8 @@ tracesys_next:	
 	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
 	b,n	.Lsyscall_nosys
 
-#ifdef __LP64__
-	ldd,s   %r20(%r19), %r19
-#else
-	ldwx,s  %r20(%r19), %r19
-#endif
+	LDREGX  %r20(%r19), %r19
+
 	/* If this is a sys_rt_sigreturn call, and the signal was received
 	 * when not in_syscall, then we want to return via syscall_exit_rfi,
 	 * not syscall_exit.  Signal no. in r20, in_syscall in r25 (see
@@ -344,12 +366,295 @@ tracesys_sigexit:
 	ldil	L%syscall_exit_rfi,%r1
 	be,n	R%syscall_exit_rfi(%sr7,%r1)
 
+
+	/*********************************************************
+		Light-weight-syscall code
+
+		r20 - lws number
+		r26,r25,r24,r23,r22 - Input registers
+		r28 - Function return register
+		r21 - Error code.
+
+		Scracth: Any of the above that aren't being
+		currently used, including r1. 
+
+		Return pointer: r31 (Not usable)
+
+		Error codes returned by entry path:
+
+		ENOSYS - r20 was an invalid LWS number.
+
+	*********************************************************/
+lws_start:
+	/* Gate and ensure we return to userspace */
+	gate	.+8, %r0
+	depi	3, 31, 2, %r31	/* Ensure we return to userspace */
+
+#ifdef __LP64__
+	/* FIXME: If we are a 64-bit kernel just
+	 *        turn this on unconditionally.
+	 */
+	ssm	PSW_SM_W, %r1
+	extrd,u	%r1,PSW_W_BIT,1,%r1
+	/* sp must be aligned on 4, so deposit the W bit setting into
+	 * the bottom of sp temporarily */
+	or,ev	%r1,%r30,%r30
+
+	/* Clip LWS number to a 32-bit value always */
+	depdi	0, 31, 32, %r20
+#endif	
+
+        /* Is the lws entry number valid? */
+	comiclr,>>=	__NR_lws_entries, %r20, %r0
+	b,n	lws_exit_nosys
+
+	/* WARNING: Trashing sr2 and sr3 */
+	mfsp	%sr7,%r1			/* get userspace into sr3 */
+	mtsp	%r1,%sr3
+	mtsp	%r0,%sr2			/* get kernel space into sr2 */
+
+	/* Load table start */
+	ldil	L%lws_table, %r1
+	ldo	R%lws_table(%r1), %r28	/* Scratch use of r28 */
+	LDREGX	%r20(%sr2,r28), %r21	/* Scratch use of r21 */
+
+	/* Jump to lws, lws table pointers already relocated */
+	be,n	0(%sr2,%r21)
+
+lws_exit_nosys:
+	ldo	-ENOSYS(%r0),%r21		   /* set errno */
+	/* Fall through: Return to userspace */
+
+lws_exit:
+#ifdef __LP64__
+	/* decide whether to reset the wide mode bit
+	 *
+	 * For a syscall, the W bit is stored in the lowest bit
+	 * of sp.  Extract it and reset W if it is zero */
+	extrd,u,*<>	%r30,63,1,%r1
+	rsm	PSW_SM_W, %r0
+	/* now reset the lowest bit of sp if it was set */
+	xor	%r30,%r1,%r30
+#endif
+	be,n	0(%sr3, %r31)
+
+
+	
+	/***************************************************
+		Implementing CAS as an atomic operation:
+
+		%r26 - Address to examine
+		%r25 - Old value to check (old)
+		%r24 - New value to set (new)
+		%r28 - Return prev through this register.
+		%r21 - Kernel error code
+
+		If debugging is DISabled:
+
+		%r21 has the following meanings:
+
+		EAGAIN - CAS is busy, ldcw failed, try again.
+		EFAULT - Read or write failed.		
+
+		If debugging is enabled:
+
+		EDEADLOCK - CAS called recursively.
+		EAGAIN && r28 == 1 - CAS is busy. Lock contended.
+		EAGAIN && r28 == 2 - CAS is busy. ldcw failed.
+		EFAULT - Read or write failed.
+
+		Scratch: r20, r28, r1
+
+	****************************************************/
+
+	/* Do not enable LWS debugging */
+#define ENABLE_LWS_DEBUG 0 
+
+	/* ELF64 Process entry path */
+lws_compare_and_swap64:
+#ifdef __LP64__
+	b,n	lws_compare_and_swap
+#else
+	/* If we are not a 64-bit kernel, then we don't
+	 * implement having 64-bit input registers
+	 */
+	b,n	lws_exit_nosys
+#endif
+
+	/* ELF32 Process entry path */
+lws_compare_and_swap32:
+#ifdef __LP64__
+	/* Clip all the input registers */
+	depdi	0, 31, 32, %r26
+	depdi	0, 31, 32, %r25
+	depdi	0, 31, 32, %r24
+#endif
+
+lws_compare_and_swap:
+#ifdef CONFIG_SMP
+	/* Load start of lock table */
+	ldil	L%lws_lock_start, %r20
+	ldo	R%lws_lock_start(%r20), %r28
+
+	/* Extract four bits from r26 and hash lock (Bits 4-7) */
+	extru  %r26, 27, 4, %r20
+
+	/* Find lock to use, the hash is either one of 0 to
+	   15, multiplied by 16 (keep it 16-byte aligned)
+	   and add to the lock table offset. */
+	shlw	%r20, 4, %r20
+	add	%r20, %r28, %r20
+
+# ifdef ENABLE_LWS_DEBUG
+	/*	
+		DEBUG, check for deadlock! 
+		If the thread register values are the same
+		then we were the one that locked it last and
+		this is a recurisve call that will deadlock.
+		We *must* giveup this call and fail.
+	*/
+	ldw	4(%sr2,%r20), %r28			/* Load thread register */
+	mfctl	%cr27, %r21				/* Get current thread register */
+	cmpb,<>,n	%r21, %r28, cas_lock		/* Called recursive? */
+	b	lws_exit				/* Return error! */
+	ldo	-EDEADLOCK(%r0), %r21
+cas_lock:
+	/* FIXME: This check is required! */
+	cmpb,=,n	%r0, %r28, cas_nocontend	/* Is nobody using it? */
+	ldo	1(%r0), %r28				/* 1st case */
+	b	lws_exit				/* Contended... */
+	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
+cas_nocontend:
+# endif
+/* ENABLE_LWS_DEBUG */
+
+	ldcw	0(%sr2,%r20), %r28			/* Try to acquire the lock */
+	cmpb,<>,n	%r0, %r28, cas_action		/* Did we get it? */
+cas_wouldblock:
+	ldo	2(%r0), %r28				/* 2nd case */
+	b	lws_exit				/* Contended... */
+	ldo	-EAGAIN(%r0), %r21			/* Spin in userspace */
+#endif
+/* CONFIG_SMP */
+
+	/*
+		prev = *addr;
+		if ( prev == old )
+		  *addr = new;
+		return prev;
+	*/
+
+	/* NOTES:
+		This all works becuse intr_do_signal
+		and schedule both check the return iasq
+		and see that we are on the kernel page
+		so this process is never scheduled off
+		or is ever sent any signal of any sort,
+		thus it is wholly atomic from usrspaces
+		perspective
+	*/
+cas_action:
+#if defined CONFIG_SMP && defined ENABLE_LWS_DEBUG
+	/* DEBUG */
+	mfctl	%cr27, %r1
+	stw	%r1, 4(%sr2,%r20)
+#endif
+	/* The load and store could fail */
+1:	ldw	0(%sr3,%r26), %r28
+	sub,<>	%r28, %r25, %r0
+2:	stw	%r24, 0(%sr3,%r26)
+#ifdef CONFIG_SMP
+	/* Free lock */
+	stw	%r20, 0(%sr2,%r20)
+# ifdef ENABLE_LWS_DEBUG
+	/* Clear thread register indicator */
+	stw	%r0, 4(%sr2,%r20)
+# endif
+#endif
+	/* Return to userspace, set no error */
+	b	lws_exit
+	copy	%r0, %r21
+	nop	/* Add some visual space in objdump */
+	nop
+	nop
+	nop
+3:		
+	/* Error occured on load or store */
+#ifdef CONFIG_SMP
+	/* Free lock */
+	stw	%r20, 0(%sr2,%r20)
+# ifdef ENABLE_LWS_DEBUG
+	stw	%r0, 4(%sr2,%r20)
+# endif
+#endif
+	b	lws_exit
+	ldo	-EFAULT(%r0),%r21	/* set errno */
+	nop
+	nop
+	nop
+	nop
+
+	/* Two exception table entries, one for the load,
+	   the other for the store. Either return -EFAULT */
+	.section __ex_table,"aw"
+#ifdef __LP64__
+	/* Pad the address calculation */
+	.word	0,(2b - linux_gateway_page)
+	.dword	(3b - 2b) 
+#else
+	.word	2b - linux_gateway_page
+	.word	(3b - 2b) 
+#endif
+	.previous
+
+	.section __ex_table,"aw"
+#ifdef __LP64__
+	/* Pad the address calculation */
+	.word	0,(1b - linux_gateway_page)
+	.dword	(3b - 1b) 
+#else
+	.word	1b - linux_gateway_page
+	.word	(3b - 1b) 
+#endif
+	.previous
+
+end_compare_and_swap:
+
+	/* Make sure nothing else is placed on this page */
+	.align 4096
+	.export end_linux_gateway_page
+end_linux_gateway_page:
+
+	/* Relocate symbols assuming linux_gateway_page is mapped
+	   to virtual address 0x0 */
+#ifdef __LP64__
+	/* FIXME: The code will always be on the gateay page
+		  and thus it will be on the first 4k, the
+		  assembler seems to think that the final
+		  subtraction result is only a word in
+		  length, so we pad the value.
+	*/
+#define LWS_ENTRY(_name_) .word 0,(lws_##_name_ - linux_gateway_page)
+#else
+#define LWS_ENTRY(_name_) .word  (lws_##_name_ - linux_gateway_page)
+#endif
+
+	.align 4096
+	/* Light-weight-syscall table */
+	/* Start of lws table. */
+	.export lws_table
+.Llws_table:
+lws_table:
+	LWS_ENTRY(compare_and_swap32)	/* 0 - ELF32 Atomic compare and swap */
+	LWS_ENTRY(compare_and_swap64)	/* 1 - ELF64 Atomic compare and swap */
+	/* End of lws table */
+
 	.align 4096
 	.export sys_call_table
 .Lsys_call_table:
 sys_call_table:
 #include "syscall_table.S"
-.end
+
 #ifdef __LP64__
 	.align 4096
 	.export sys_call_table64
@@ -359,10 +664,29 @@ sys_call_table64:
 #include "syscall_table.S"
 #endif
 
+#ifdef CONFIG_SMP
+	/*
+		All light-weight-syscall atomic operations 
+		will use this set of locks 
+	*/
+	.section .data
+	.align 4096
+	.export lws_lock_start
+.Llws_lock_start:
+lws_lock_start:
+	/* lws locks */
+	.align 16
+	.rept 16
+	/* Keep locks aligned at 16-bytes */
+	.word 1
+	.word 0 
+	.word 0
+	.word 0
+	.endr
+	.previous
+#endif
+/* CONFIG_SMP for lws_lock_start */
 
-	/* Make sure nothing else is placed on this page */
+.end
 
-	.align 4096
-	.export end_linux_gateway_page
-end_linux_gateway_page:
 
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Xref: news.gmane.org gmane.linux.ports.parisc:21882

On Sat, Aug 21, 2004 at 12:24:48AM -0600, Carlos O'Donell wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	carlos	04/08/21 00:24:48
> 
> Modified files:
> 	arch/parisc/kernel: entry.S 
> 
> Log message:
> Add some extra comment to space_check.
> Add support for prober and probew in our non-access TLB
> fault emulation path.

Like the log message says. The OS has to provide some support, we add
support here for prober and probew in the emulation path, but only for
non-shadow registers. The slow path emulation is not complete.

Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/entry.S,v
retrieving revision 1.21
diff -u -p -r1.21 entry.S
--- arch/parisc/kernel/entry.S	18 Aug 2004 18:56:34 -0000	1.21
+++ arch/parisc/kernel/entry.S	21 Aug 2004 06:23:22 -0000
@@ -440,8 +440,17 @@
 	mfctl		%cr25,\reg
 	.endm
 
-	/* Only allow faults on different spaces from the
-	 * currently active one if we're the kernel */
+	/* 
+		space_check(spc,tmp,fault)
+
+		spc - The space we saw the fault with.
+		tmp - The place to store the current space.
+		fault - Function to call on failure.
+
+		Only allow faults on different spaces from the
+		currently active one if we're the kernel 
+
+	*/
 	.macro		space_check	spc,tmp,fault
 	mfsp		%sr7,\tmp
 	or,COND(<>)	%r0,\spc,%r0	/* user may execute gateway page
@@ -1039,7 +1048,14 @@ intr_do_resched:
 
 	.import do_signal,code
 intr_do_signal:
-	/* Only do signals if we are returning to user space */
+	/* 
+		This check is critical to having LWS
+		working. The IASQ is zero on the gateway
+		page and we cannot deliver any signals until
+		we get off the gateway page.
+
+		Only do signals if we are returning to user space 
+	*/
 	LDREG	PT_IASQ0(%r16), %r20
 	CMPIB= 0,%r20,intr_restore /* backward */
 	nop
@@ -1446,15 +1462,20 @@ nadtlb_emulate:
 	 * of the instruction. Since we don't insert a translation
 	 * we can get a lot of faults during a flush loop, so it makes
 	 * sense to try to do it here with minimum overhead. We only
-	 * emulate fdc,fic & pdc instructions whose base and index
-	 * registers are not shadowed. We defer everything else to the
-	 * "slow" path.
+	 * emulate fdc,fic,pdc,probew,prober instructions whose base 
+	 * and index registers are not shadowed. We defer everything 
+	 * else to the "slow" path.
 	 */
 
 	mfctl           %cr19,%r9 /* Get iir */
+
+	/* PA 2.0 Arch Ref. Book pg 382 has a good description of the insn bits.
+	   Checks for fdc,fdce,pdc,"fic,4f",prober,probeir,probew, probeiw */
+
+	/* Checks for fdc,fdce,pdc,"fic,4f" only */
 	ldi             0x280,%r16
 	and             %r9,%r16,%r17
-	cmpb,<>,n       %r16,%r17,nadtlb_fault /* Not fdc,fic,pdc */
+	cmpb,<>,n       %r16,%r17,nadtlb_probe_check
 	bb,>=,n         %r9,26,nadtlb_nullify  /* m bit not set, just nullify */
 	BL		get_register,%r25
 	extrw,u         %r9,15,5,%r8           /* Get index register # */
@@ -1474,6 +1495,32 @@ nadtlb_nullify:
 
 	rfir
 	nop
+
+	/* 
+		When there is no translation for the probe address then we
+		must nullify the insn and return zero in the target regsiter.
+		This will indicate to the calling code that it does not have 
+		write/read privileges to this address.
+
+		This should technically work for prober and probew in PA 1.1,
+		and also probe,r and probe,w in PA 2.0
+
+		WARNING: USE ONLY NON-SHADOW REGISTERS WITH PROBE INSN!
+		THE SLOW-PATH EMULATION HAS NOT BEEN WRITTEN YET.
+
+	*/
+nadtlb_probe_check:
+	ldi             0x80,%r16
+	and             %r9,%r16,%r17
+	cmpb,<>,n       %r16,%r17,nadtlb_fault /* Must be probe,[rw]*/
+	BL              get_register,%r25      /* Find the target register */
+	extrw,u         %r9,31,5,%r8           /* Get target register */
+	CMPIB=,n        -1,%r1,nadtlb_fault    /* have to use slow path */
+	BL		set_register,%r25
+	copy            %r0,%r1                /* Write zero to target register */
+	b nadtlb_nullify                       /* Nullify return insn */
+	nop
+
 
 #ifdef __LP64__
 itlb_miss_20w:
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willy, 

Can I chedk this in? I promise I'll fix this up properly :)
Two comments and two minor code changes. I promise to fixup the panic
notifiers later, but I would like to get this into our tree so it works
for people who want a reboot or the panic code to run the notifiers for
all the other subsystems.

c.

Index: arch/parisc/kernel/traps.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/traps.c,v
retrieving revision 1.18
diff -u -p -r1.18 traps.c
--- arch/parisc/kernel/traps.c	9 Aug 2004 16:38:41 -0000	1.18
+++ arch/parisc/kernel/traps.c	17 Aug 2004 06:00:32 -0000
@@ -373,9 +373,9 @@ void transfer_pim_to_trap_frame(struct p
 
 
 /*
- * This routine handles page faults.  It determines the address,
- * and the problem, and then passes it off to one of the appropriate
- * routines.
+ * This routine is called as a last resort when everything else
+ * has gone clearly wrong. We get called for faults in kernel space,
+ * and HPMC's.
  */
 void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long offset)
 {
@@ -421,9 +421,16 @@ void parisc_terminate(char *msg, struct 
 	 * system will shut down immediately right here. */
 	pdc_soft_power_button(0);
 	
-	/* Gutter the processor! */
-	for(;;)
-	    ;
+	/* Call kernel panic() so reboot timeouts work properly 
+	 * FIXME: This function should be on the list of
+	 * panic notifiers, and we should call panic
+	 * directly from the location that we wish. 
+	 * e.g. We should not call panic from
+	 * parisc_terminate, but rather the other way around.
+	 * This hack works, prints the panic message twice,
+	 * and it enables reboot timers!
+	 */
+	panic(msg);
 }
 
 void handle_interruption(int code, struct pt_regs *regs)
@@ -565,9 +572,16 @@ void handle_interruption(int code, struc
 		/* Fall through */
 	case 17:
 		/* Non-access data TLB miss fault/Non-access data page fault */
-		/* TODO: Still need to add slow path emulation code here */
-		/* TODO: Understand what is meant by the TODO listed
-		         above this one. (Carlos) */
+		/* FIXME: 
+		 	 Still need to add slow path emulation code here!
+		         If the insn used a non-shadow register, then the tlb
+			 handlers could not have their side-effect (e.g. probe
+			 writing to a target register) emulated since rfir would
+			 erase the changes to said register. Instead we have to
+			 setup everything, call this function we are in, and emulate
+			 by hand. Technically we need to emulate:
+			 fdc,fdce,pdc,"fic,4f",prober,probeir,probew, probeiw
+		*/			  
 		fault_address = regs->ior;
 		fault_space = regs->isr;
 		break;
@@ -677,7 +691,7 @@ void handle_interruption(int code, struc
 	}
 
 	if (user_mode(regs)) {
-	    if ((fault_space>>SPACEID_SHIFT) != (regs->sr[7] >> SPACEID_SHIFT)) {
+	    if ((fault_space >> SPACEID_SHIFT) != (regs->sr[7] >> SPACEID_SHIFT)) {
 #ifdef PRINT_USER_FAULTS
 		if (fault_space == 0)
 			printk(KERN_DEBUG "User Fault on Kernel Space ");
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From: Stuart Brady <sdbrady@ntlworld.com>
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Subject: [parisc-linux] stifb problem on a 715/100 - sti= parameter broken?
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Hi,

I can't get the console to work on a 715/100.  The console path is set
to "graphics.9" which refers to the built-in hardware.  There's an
HCRX-24 card attached (graphics_1), but I don't have a monitor for that.

PALO chooses sti=1, and 2.4 kernels work fine with sti=1.  If I boot
with sti=0, I last thing I see is the "If this is the last message you
see, you may need to switch your console" message, which is expected
since it's presumably using the HCRX card for output.

If I boot a 2.6 kernel, I get the "If this is the last message you see"
message regardless of what sti is set to.  Does anyone know what I'm
doing wrong?  I've searched the lists, but I haven't found anything yet
except for references to a similar problem in 2.4 in 2001-2002.

"cat /dev/fb0 > /dev/fb1" copies console text to the screen, so it seems
that the framebuffer is working correctly, but the wrong device is being
used for the console.

Thanks,
-- 
Stuart Brady
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Subject: Re: [parisc-linux] [PATCH] sti= parameter ignored by stifb
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Xref: news.gmane.org gmane.linux.ports.parisc:21885

On Mon, Aug 23, 2004 at 01:37:36PM +0100, Stuart Brady wrote:
> If I boot a 2.6 kernel, I get the "If this is the last message you see"
> message regardless of what sti is set to.  Does anyone know what I'm
> doing wrong?  I've searched the lists, but I haven't found anything yet
> except for references to a similar problem in 2.4 in 2001-2002.

I've had a look at the code and I think I've found the problem...
Framebuffers are added in their sti_get_rom() sequence.  In 2.4,
sti_get_rom(0) (the default sti) was included in this, which presumably
results in two framebuffers sharing the same sti struct (badness?)

In 2.6, sti_get_rom(0) is not included, and sti_get_rom(1) is the first
one to be added.  It looks as through whichever framebuffer is
initialised first gets the console.  On my machine, sti_get_rom(1)
refers to the HCRX card (sti=0), and sti_get_rom(2) (sti=1) refers to
the built-in graphics.

This patch below works for me, although there's a nasty glitch when
booting up (the screen doesn't scroll properly, and new messages are
written to the top-most line - this goes away once init starts.)
I don't know whether there's anything else that needs fixing, too.

Index: drivers/video/stifb.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/video/stifb.c,v
retrieving revision 1.7
diff -u -r1.7 stifb.c
--- drivers/video/stifb.c	29 Dec 2003 23:56:30 -0000	1.7
+++ drivers/video/stifb.c	23 Aug 2004 16:54:32 -0000
@@ -1379,6 +1379,7 @@
 stifb_init(void)
 {
 	struct sti_struct *sti;
+	struct sti_struct *def_sti;
 	int i;
 	
 	if (stifb_disabled) {
@@ -1386,9 +1387,19 @@
 		return -ENXIO;
 	}
 	
+	def_sti = sti_get_rom(0);
+	if (def_sti) {
+		for (i = 1; i < MAX_STI_ROMS; i++) {
+			sti = sti_get_rom(i);
+			if (sti == def_sti && bpp > 0)
+				stifb_force_bpp[i] = bpp;
+		}
+		stifb_init_fb(def_sti, stifb_force_bpp[i]);
+	}
+
 	for (i = 1; i < MAX_STI_ROMS; i++) {
 		sti = sti_get_rom(i);
-		if (!sti)
+		if (!sti || sti==def_sti)
 			break;
 		if (bpp > 0)
 			stifb_force_bpp[i] = bpp;
-- 
Stuart Brady
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Hi all,

As promised (a year ago now; shame on me :( ), here is a first draft of fls(unsigned long) thanks to help of "Michael S. Zick":
--- linux-2.6.8.1-pa7/include/asm-parisc/bitops.h.Orig  2004-08-15 20:27:42.000000000 +0200
+++ linux-2.6.8.1-pa7/include/asm-parisc/bitops.h       2004-08-23 17:09:12.190000000 +0200
@@ -273,31 +273,38 @@
   * fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
   */

-static __inline__ int fls(int x)
+static __inline__ int fls(unsigned long x)
  {
-       int ret;
-       if (!x)
-               return 0;
+       unsigned long ret;

         __asm__(
-       "       ldi             1,%1\n"
-       "       extru,<>        %0,15,16,%%r0\n"
-       "       zdep,TR         %0,15,16,%0\n"          /* xxxx0000 */
-       "       addi            16,%1,%1\n"
-       "       extru,<>        %0,7,8,%%r0\n"
-       "       zdep,TR         %0,23,24,%0\n"          /* xx000000 */
-       "       addi            8,%1,%1\n"
-       "       extru,<>        %0,3,4,%%r0\n"
-       "       zdep,TR         %0,27,28,%0\n"          /* x0000000 */
-       "       addi            4,%1,%1\n"
-       "       extru,<>        %0,1,2,%%r0\n"
-       "       zdep,TR         %0,29,30,%0\n"          /* y0000000 (y&3 = 0) */
-       "       addi            2,%1,%1\n"
-       "       extru,=         %0,0,1,%%r0\n"
-       "       addi            1,%1,%1\n"              /* if y & 8, add 1 */
+#ifdef __LP64__
+               " ldi           64,%1\n"
+               " extrd,u,*=    %0,31,32,%%r0\n"
+               " extrd,u,*TR   %0,31,32,%0\n"  /* move top 32-bits down */
+               " addi          -32,%1,%1\n"
+#else
+               " ldi           32,%1\n"
+#endif
+               " extru,=       %0,15,16,%%r0\n"
+               " extru,TR      %0,15,16,%0\n"  /* xxxx0000 -> 0000xxxx */
+               " addi          -16,%1,%1\n"
+               " extru,=       %0,23,8,%%r0\n"
+               " extru,TR      %0,23,8,%0\n"   /* 0000xx00 -> 000000xx */
+               " addi          -8,%1,%1\n"
+               " extru,=       %0,27,4,%%r0\n"
+               " extru,TR      %0,27,4,%0\n"   /* 000000x0 -> 0000000x */
+               " addi          -4,%1,%1\n"
+               " extru,=       %0,29,2,%%r0\n"
+               " extru,TR      %0,29,2,%0\n"   /* 0000000y, 1100b -> 0011b */
+               " addi          -2,%1,%1\n"
+               " extru,=       %0,30,1,%%r0\n"
+               " extru,TR      %0,30,1,%0\n"   /* 0000000z, 10b -> 01b */
+               " addi          -1,%1,%1\n"
+               " extru,<>      %0,31,1,%%r0\n" /* check last bit */
+               " addi          -1,%1,%1\n"
                 : "+r" (x), "=r" (ret) );

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Subject: [parisc-linux] pthread_join takes forever?
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pa,

I've noticed lately that pthread_join takes forever waiting for a
process to pass away. This times out certain tests in glibc, I've had to
increase their timeouts.

Anyone have any thoughts?

c.

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On Mon, Aug 23, 2004 at 04:56:25PM +0000, Joel Soete wrote:
> >Last week I managed to install debian woody onto an HP J5600, using a 
...
> hmm j5600 is a sister of my b2k (may be can I sent you my .config file to 
> test?)

correct. He should be able to use the linux-2.6 c3000_config file.

> >What is the current recommended stable kernel for this machine, and for 
> >running an smp kernel? Is 2.6.x stable enough on hppa yet?
> >
> A lot of improvement :) (just take care to grab it from 
> <http://cvs.parisc-linux.org/download/>)

2.6 kernels and source tarballs are available here:
	http://cvs.parisc-linux.org/download/linux-2.6/

We currently do not auto-build a 32-bit SMP kernel and that's what
I suggest you try first. Grab the latest source tarball, tweak
arch/parisc/configs/c3000_config to enable SMP, and "make".

Note PARISC SMP support has only recently been fixed in our linux-2.6
tree (thanks jejb, tausq!) and hasn't been broadly tested.

But the same bugs jejb found still exist in 2.4 kernels.
Kyle McMartin is looking at back porting those fixes and could
probably use help with the N4K and "mb() in spinlock()" patches.

hth,
grant
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Moin!

       Invitation to the Oldenburg Linux Developers Meeting #9
       -------------------------------------------------------

Executive summary:

URL:   http://oldenburger.linuxtage.de/Oldenburg2004/
What:  Oldenburg Linux Developers Meeting #9
Who:   Every developer interested in Linux on non-i386 platforms
       Every developer interested in developing the debian-installer
When:  September, 22nd to 26th (Wednesday noon to Sunday afternoon)
Where: University of Oldenburg, science building in Oldenburg Wechloy
Orga:  ffis e.V., Martin 'Joey' Schulze


Keeping the tradition alive we will organise another Linux developers
meeting in Oldenburg this year at the last weekend of September.  This
year, however, we will be able to use the facility from Wednesday to
Sunday, hence, one day longer than before.

There were loud complaints last year about the meeting being too
short, so it will be extended by one day this time.  The meeting will
take place at the University of Oldenburg in the scientific building
in Oldenburg Wechloy.

the goal of this developers meeting is to provide developers a means
to work in common on the non-i386 Linux ports and related topics and
to further the exchange of ideas and discussion about the several
ports.

We will have dedicated working and sleeping rooms as before.  We
should be able to use three more rooms during the nights in case the
number of attending developers is too high for the two dedicated
sleeping rooms.  We will be able to use the shower facility of the
sports department nearby.

This year Debian developers will join us again for work on the new
debian-installer.  They will probably want to test the installer on
some "obscure" hardware they don't normally have access to, so don't
worry if you should receive such a request.

We will have dinner together in a restaurant in the evening.  A
preliminary plan is on the web already, but the restaurants and the
order may still change.  We will have a barbecue on Friday for this is
the tenth developers meeting already.

As usual we will have a never-ending breakfast in the large working
room.  I will get rolls each morning and ensure that there will be
butter, cheese, saussages, jam, Nutella and stuff.  I'll also take
care of non-alcoholic fluids.

Attendance is free of cost including food and beverage in the working
rooms (although we are always thankful for donations, EUR 10-20 per
person should cover the expenses).  However, for the barbecue on
Friday instead of a restaurant we would be thankful if you could take
a stake in the expenses, EUR 5-10 should cover the costs.

Beside machines, equipment and documentation you'll need to take with
you a sleeping bag, maybe a camping mat or cot, towels, shower suff,
personal toilett stuff, maybe medicine, clothes, mug and plate are
optional but helpful.

You'll find routing information on the website mentioned above.

If you would like to attend the meeting, please send back the
following form, so that we can calculate space, power and food.

Name ................:

Date of arrival .....: ( ) Wednesday, Sep, 22nd
                       ( ) Thursday, Sep, 23rd
                       ( ) Friday, Sep, 24th 
                       ( ) Saturday, Sep, 25th

Date of departure ...: ( ) Friday, Sep. 24th
                       ( ) Saturday, Sep. 25th
                       ( ) Sunday, Sep. 26th

[ ] Vegetarian (only needed for the barbecue)

___ usable seats in my car, once arrived (only if you come by car)

Special requirements for food: ______________________

If you come by train/plane and want me to pick up up in Bremen or
Oldenburg, please drop me the exact arrival and departure times as
well.

If you have any further questions, please don't hesitate to ask me.

Regards,

	Joey

-- 
A mathematician is a machine for converting coffee into theorems.   Paul Erds

Please always Cc to me when replying to me on the lists.
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From: Stuart Brady <sdbrady@ntlworld.com>
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Subject: [parisc-linux] [PATCH] Fix HIL Mouse driver for 2.6
Date: Thu, 26 Aug 2004 05:54:14 +0100
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Hi,

This patch makes the HIL pointer driver work in 2.6.  I have tested
it with both gpm and xfree86.

IIUC, users of PS/2 mice with HIL hubs should use the psmouse driver
(CONFIG_MOUSE_PS2) instead.  CONFIG_MOUSE_HIL is not needed for this.

The hil_ptr driver is for genuine HIL mice.  To compile it you need
CONFIG_MOUSE_HIL.  CONFIG_MOUSE_PS2 is not needed for HIL mice.

Index: drivers/input/mouse/hil_ptr.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/input/mouse/hil_ptr.c,v
retrieving revision 1.8
diff -u -r1.8 hil_ptr.c
--- drivers/input/mouse/hil_ptr.c	6 Jan 2004 22:31:59 -0000	1.8
+++ drivers/input/mouse/hil_ptr.c	26 Aug 2004 03:58:11 -0000
@@ -176,6 +176,7 @@
 		btn = ptr->btnmap[btn];
 		input_report_key(dev, btn, !up);
 	}
+	input_sync(dev);
  out:
 	ptr->idx4 = 0;
 	up(&ptr->sem);
@@ -284,6 +285,7 @@
 
 	up(&(ptr->sem));
 
+	init_input_dev(&ptr->dev);
 	did = ptr->idd[0];
 	idd = ptr->idd + 1;
 	txt = "unknown";

-- 
Stuart Brady
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From: "Carlos O'Donell" <carlos@skynet.ca>
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Subject: [parisc-linux] Signal fixes for 2.6? Willing testers? :)
Date: Thu, 26 Aug 2004 01:43:26 -0400
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pa,

Who wants to stress test this? :)
Don't blame me if your box dies...

We could be losing signals if handle_signal fails under
heavy load. Full gcc 'make check' testsuite runs are
probably the best trigger.

c.

Index: signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/signal.c,v
retrieving revision 1.17
diff -u -p -r1.17 signal.c
--- signal.c	31 Mar 2004 07:03:13 -0000	1.17
+++ signal.c	26 Aug 2004 02:58:59 -0000
@@ -553,10 +553,15 @@ do_signal(sigset_t *oldset, struct pt_re
 		oldset->sig[0], oldset->sig[1]);
 
 
-	signr = get_signal_to_deliver(&info, regs, NULL);
-	DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]); 
+	/* May need to force signal if handle_signal failed to deliver */
+	while (1) {
+	  
+		signr = get_signal_to_deliver(&info, regs, NULL);
+		DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]); 
 	
-	if (signr > 0) {
+		if (signr <= 0)
+		  break;
+		
 		/* Restart a system call if necessary. */
 		if (in_syscall) {
 			/* Check the return code */
@@ -578,8 +583,7 @@ do_signal(sigset_t *oldset, struct pt_re
 			/* fallthrough */
 			case -ERESTARTNOINTR:
 				/* A syscall is just a branch, so all
-                                   we have to do is fiddle the return
-                                   pointer. */
+				   we have to do is fiddle the return pointer. */
 				regs->gr[31] -= 8; /* delayed branching */
 				/* Preserve original r28. */
 				regs->gr[28] = regs->orig_r28;
@@ -595,6 +599,7 @@ do_signal(sigset_t *oldset, struct pt_re
 			return 1;
 		}
 	}
+	/* end of while(1) looping forever if we can't force a signal */
 
 	/* Did we come from a system call? */
 	if (in_syscall) {
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Subject: Re: [parisc-linux] [PATCH] Fix HIL Mouse driver for 2.6
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Hi Stuart,

I've applied both patches you sent to the parisc linux CVS tree.

Thanks a lot,
Helge

PS: I didn't tested them yet, but will try to do so later today....

On Thursday 26 August 2004 06:54, Stuart Brady wrote:
> This patch makes the HIL pointer driver work in 2.6.  I have tested
> it with both gpm and xfree86.
> 
> IIUC, users of PS/2 mice with HIL hubs should use the psmouse driver
> (CONFIG_MOUSE_PS2) instead.  CONFIG_MOUSE_HIL is not needed for this.
> 
> The hil_ptr driver is for genuine HIL mice.  To compile it you need
> CONFIG_MOUSE_HIL.  CONFIG_MOUSE_PS2 is not needed for HIL mice.
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Subject: [parisc-linux] cannot build kernel with hppa64-linux-gcc-3.4?
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Hi all,

while debugging some other problems, i noticed that a 64-bit kernel
built with gcc-3.4.1 (debian 3.4.1-7) will not boot. It causes a HPMC
very early on trying to write to nonexistent memory. gcc-3.3.4 (debian
1:3.3.4-9) works fine. 

haven't had time to dig more yet, but it seems to be getting a ITLB
fault, and when we try to handle the interruption, we try to write to an
unmapped virtual address 0x14ffffd00 (this is in skip_save_ior, right
after we switch back to virtual space)

anyone else tried this?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: Re: [parisc-linux] cannot build kernel with hppa64-linux-gcc-3.4?
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On Thu, Aug 26, 2004 at 10:56:13AM -0700, Randolph Chung wrote:
> Hi all,
> 
> while debugging some other problems, i noticed that a 64-bit kernel
> built with gcc-3.4.1 (debian 3.4.1-7) will not boot. It causes a HPMC
> very early on trying to write to nonexistent memory. gcc-3.3.4 (debian
> 1:3.3.4-9) works fine. 

Not to mention glibc. I can't build glibc with gcc-3.4.1-7
without a loader that crashes at startup.

I haven't tried building a kernel in a while, I'll throw it
on the fire and tell you if it boots.

c.
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> anyone else tried this?

Yes, me. It didn't work. Didn't debug it. Was working on LWS
:)

c.

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Subject: [parisc-linux] [PATCH] New help text for HIL options
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This patch changes the help text for the following options:

   CONFIG_KEYBOARD_HIL_OLD
   CONFIG_KEYBOARD_HIL
   CONFIG_MOUSE_HIL
   CONFIG_HP_SDC

I hope it's an improvement.

Help for CONFIG_HIL_MLC is still missing, though.

Index: drivers/input/keyboard/Kconfig
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/input/keyboard/Kconfig,v
retrieving revision 1.19
diff -u -r1.19 Kconfig
--- drivers/input/keyboard/Kconfig	20 Jul 2004 22:06:12 -0000	1.19
+++ drivers/input/keyboard/Kconfig	27 Aug 2004 01:12:33 -0000
@@ -102,7 +102,12 @@
 	depends on PARISC && INPUT && INPUT_KEYBOARD && !HIL_MLC
 	default y
 	help
-	  The "Human Interface Loop" is a older, 8-channel USB-like
+	  Say Y here (or to "HP HIL keyboard support") if you have a
+	  PA-RISC machine with a HIL keyboard connected. This driver does
+	  not support PS/2 keyboards attached to a HIL hub - use the AT
+	  keyboard driver instead.
+
+	  The "Human Interface Loop" is an older, 8-channel USB-like
 	  controller used in several Hewlett Packard models. This driver
 	  was adapted from the one written for m68k/hp300, and implements
 	  support for a keyboard attached to the HIL port, but not for
@@ -110,19 +115,27 @@
 	  However, it has been thoroughly tested and is stable.
 
 	  If you want full HIL support including support for multiple
-	  keyboards, mices and tablets, you have to enable the
-	  "HP System Device Controller i8042 Support" in the input/serio
-	  submenu.
+	  keyboards, mice and tablets, you have to enable the
+	  "HP System Device Controller i8042 Support" in the
+	  "Serial i/o support" submenu, along with "HIL MLC Support".
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called hilkbd.
 
 config KEYBOARD_HIL
 	tristate "HP HIL keyboard support"
 	depends on PARISC && INPUT && INPUT_KEYBOARD
 	default y
 	select HP_SDC
- 	select HIL_MLC
+	select HIL_MLC
 	help
-	  The "Human Interface Loop" is a older, 8-channel USB-like
+	  Say Y here (or to "HP HIL keyboard support (simple driver)")
+	  if you have a PA-RISC machine with a HIL keyboard connected.
+	  This driver does not support PS/2 keyboards attached to a HIL
+	  hub - use the AT keyboard driver instead.
+
+	  The "Human Interface Loop" is an older, 8-channel USB-like
 	  controller used in several Hewlett Packard models.
-	  This driver implements support for HIL-keyboards attached
-	  to your machine, so normally you should say Y here.
 
+	  To compile this driver as a module, choose M here: the
+	  module will be called hil_kbd.
Index: drivers/input/mouse/Kconfig
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/input/mouse/Kconfig,v
retrieving revision 1.20
diff -u -r1.20 Kconfig
--- drivers/input/mouse/Kconfig	20 Jul 2004 22:06:13 -0000	1.20
+++ drivers/input/mouse/Kconfig	27 Aug 2004 01:12:33 -0000
@@ -132,9 +132,17 @@
 	  with that (I don't have the hardware yet).
 
 config MOUSE_HIL
-	tristate "HIL pointers (mice etc)."
+	tristate "HIL pointers (mice etc.)"
 	depends on PARISC && INPUT_MOUSE
 	select HP_SDC
 	select HIL_MLC
 	help
-	  Say Y here to support HIL pointers.
+	  Say Y here if you have a PA-RISC machine with a HIL pointing
+	  device connected. This driver does not support PS/2 devices
+	  attached to a HIL hub - use the PS/2 driver instead.
+
+	  The "Human Interface Loop" is an older, 8-channel USB-like
+	  controller used in several Hewlett Packard models.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called hil_ptr.
Index: drivers/input/serio/Kconfig
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/input/serio/Kconfig,v
retrieving revision 1.18
diff -u -r1.18 Kconfig
--- drivers/input/serio/Kconfig	20 Jul 2004 22:06:13 -0000	1.18
+++ drivers/input/serio/Kconfig	27 Aug 2004 01:12:33 -0000
@@ -118,7 +118,7 @@
 	---help---
 	  This option enables supports for the the "System Device
 	  Controller", an i8042 carrying microcode to manage a
-	  few miscellanous devices on some Hewlett Packard systems.
+	  few miscellaneous devices on some Hewlett Packard systems.
 	  The SDC itself contains a 10ms resolution timer/clock capable
 	  of delivering interrupts on a periodic and one-shot basis.
 	  The SDC may also be connected to a battery-backed real-time
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On Fri, Aug 27, 2004 at 02:21:41AM +0100, Stuart Brady wrote:
> I hope it's an improvement.

In general yes.
Normally, Helge Deller deals with the HIL and related patches.
I just had one question.

> -	  The "Human Interface Loop" is a older, 8-channel USB-like
> +	  Say Y here (or to "HP HIL keyboard support") if you have a
> +	  PA-RISC machine with a HIL keyboard connected. This driver does

Is HIL also used on HP m68k workstations as well?
The ones that predate "snakes" workstations. eg HP 425.

grant
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On Fri, Aug 27, 2004 at 12:02:19AM -0600, Grant Grundler wrote:
> Is HIL also used on HP m68k workstations as well?
> The ones that predate "snakes" workstations. eg HP 425.
> 
Apparently, some of our input changes came from that port, aiui.

Cheers,
-- 
Kyle McMartin
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Subject: [parisc-linux] memory barriers, spinlocks, debuglocks, oh my
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Not knowing anything about how 2.4 works, I hope this is enough,
ping me if it isn't, and I'll take another look.

	Regards,
		Kyle

arch/parisc/lib/locks.c         |    6 ++++++
include/asm-parisc/atomic.h     |   10 ++++++++--
include/asm-parisc/spinlock_t.h |   19 +++++++++++--------
3 files changed, 25 insertions(+), 10 deletions(-)


Index: arch/parisc/lib/locks.c
===================================================================
RCS file: /var/cvs/linux-2.4/arch/parisc/lib/locks.c,v
retrieving revision 1.1
diff -u -r1.1 locks.c
--- arch/parisc/lib/locks.c	16 Nov 2002 07:28:08 -0000	1.1
+++ arch/parisc/lib/locks.c	27 Aug 2004 16:12:50 -0000
@@ -22,6 +22,7 @@
 
 void spin_lock(spinlock_t *lock)
 {
+	mb();
 	int cpu = smp_processor_id();
 	unsigned int stuck = INIT_STUCK;
 	while (!__spin_trylock(lock)) {
@@ -39,19 +40,23 @@
 	}
 	lock->owner_pc = (unsigned long)__builtin_return_address(0);
 	lock->owner_cpu = cpu;
+	mb();
 }
 
 int spin_trylock(spinlock_t *lock)
 {
+	mb();
 	if (!__spin_trylock(lock))
 		return 0;
 	lock->owner_cpu = smp_processor_id(); 
 	lock->owner_pc = (unsigned long)__builtin_return_address(0);
+	mb();
 	return 1;
 }
 
 void spin_unlock(spinlock_t *lp)
 {
+	mb();
   	if ( lp->lock )
 		printk("spin_unlock(%p): no lock cpu %d curr PC %p %s/%d\n",
 		       lp, smp_processor_id(), __builtin_return_address(0),
@@ -63,6 +68,7 @@
 	lp->owner_pc = lp->owner_cpu = 0;
 	wmb();
 	lp->lock = 1;
+	mb();
 }
 
 #endif
Index: include/asm-parisc/atomic.h
===================================================================
RCS file: /var/cvs/linux-2.4/include/asm-parisc/atomic.h,v
retrieving revision 1.10
diff -u -r1.10 atomic.h
--- include/asm-parisc/atomic.h	13 Sep 2002 21:43:37 -0000	1.10
+++ include/asm-parisc/atomic.h	27 Aug 2004 16:13:00 -0000
@@ -30,8 +30,14 @@
  *
  * XXX REVISIT these could be renamed and moved to spinlock_t.h as well
  */
-#define SPIN_LOCK(x)	do { while(__ldcw(&(x)->lock) == 0); } while(0)
-#define SPIN_UNLOCK(x)  do { (x)->lock = 1; } while(0)
+#define SPIN_LOCK(x)    mb();     \
+                        do { while(__ldcw(&(x)->lock) == 0); } \
+                        while(0); \
+                        mb()
+#define SPIN_UNLOCK(x)  mb();     \
+                        do { (x)->lock = 1; } \
+                        while(0); \
+                        mb()
 
 #else	/* CONFIG_SMP */
 
Index: include/asm-parisc/spinlock_t.h
===================================================================
RCS file: /var/cvs/linux-2.4/include/asm-parisc/spinlock_t.h,v
retrieving revision 1.5
diff -u -r1.5 spinlock_t.h
--- include/asm-parisc/spinlock_t.h	7 May 2003 17:20:29 -0000	1.5
+++ include/asm-parisc/spinlock_t.h	27 Aug 2004 16:13:00 -0000
@@ -68,15 +68,18 @@
  * Writing this with asm also ensures that the unlock doesn't
  * get reordered
  */
-#define spin_unlock(x) \
-	__asm__ __volatile__ ("stw,ma  %%sp,0(%0)" : : "r" (&(x)->lock) : "memory" )
+#define spin_unlock(x) do { mb(); \
+ 	__asm__ __volatile__ ("stw,ma  %%sp,0(%0)" : : "r" (&(x)->lock) : "memory" ); \
+        mb(); } while(0)
+
+#define spin_unlock_wait(x) mb(); \
+ do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0); \
+ mb()
 
-#define spin_unlock_wait(x)     do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
-
-#define spin_lock(x) do { \
+#define spin_lock(x) do { mb(); \
 	while (__ldcw (&(x)->lock) == 0) \
 		while ((x)->lock == 0) ; \
-} while (0)
+        mb(); } while (0)
 
 #else
 
@@ -85,12 +88,12 @@
 
 /* Define 6 spinlock primitives that don't depend on anything else. */
 
-#define spin_lock_init(x)       do { (x)->lock = 1; (x)->owner_cpu = 0; (x)->owner_pc = 0; } while(0)
+#define spin_lock_init(x)       mb(); do { (x)->lock = 1; (x)->owner_cpu = 0; (x)->owner_pc = 0; } while(0); mb()
 #define spin_is_locked(x)       ((x)->lock == 0)
 void spin_lock(spinlock_t *lock);
 int spin_trylock(spinlock_t *lock);
 void spin_unlock(spinlock_t *lock);
-#define spin_unlock_wait(x)     do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
+#define spin_unlock_wait(x)     mb(); do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0); mb()
 
 #endif
 
-- 
Kyle McMartin
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jda,

This is more important for you, approximately 48 hours ago, Linus
commited a fix for a signal handling race.

http://linux.bkbits.net:8080/linux-2.6/cset@1.1846.1.48?nav=index.html|ChangeSet@-2d

That is the changeset, and included is a patch against our CVS head 
that fixes the race condition.

It could force a thread not to restart or crash, or do all sorts of
things. It may be the bug you are seeing.

Please test it out and see if it makes the builds more stable. It could
be the reason for random sigsegvs with expect/tcl.

The patch fixes our arch code so we *never* have a k_sigaction that
wasn't copied without a lock held.

The new code passes around a pointer to an arch allocated k_sigaction
and copies it with the lock held so it can't be changed between 'check'
and 'delivery.'

c.

Index: arch/parisc/kernel/signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/signal.c,v
retrieving revision 1.17
diff -u -p -r1.17 signal.c
--- arch/parisc/kernel/signal.c	31 Mar 2004 07:03:13 -0000	1.17
+++ arch/parisc/kernel/signal.c	27 Aug 2004 18:17:53 -0000
@@ -494,11 +494,9 @@ give_sigsegv:
  */	
 
 static long
-handle_signal(unsigned long sig, siginfo_t *info, sigset_t *oldset,
-	      struct pt_regs *regs, int in_syscall)
+handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
+		sigset_t *oldset, struct pt_regs *regs, int in_syscall)
 {
-	struct k_sigaction *ka = &current->sighand->action[sig-1];
-
 	DBG(1,"handle_signal: sig=%ld, ka=%p, info=%p, oldset=%p, regs=%p\n",
 	       sig, ka, info, oldset, regs);
 	
@@ -506,9 +504,6 @@ handle_signal(unsigned long sig, siginfo
 	if (!setup_rt_frame(sig, ka, info, oldset, regs, in_syscall))
 		return 0;
 
-	if (ka->sa.sa_flags & SA_ONESHOT)
-		ka->sa.sa_handler = SIG_DFL;
-
 	if (!(ka->sa.sa_flags & SA_NODEFER)) {
 		spin_lock_irq(&current->sighand->siglock);
 		sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -535,7 +530,7 @@ asmlinkage int
 do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall)
 {
 	siginfo_t info;
-	struct k_sigaction *ka;
+	struct k_sigaction ka;
 	int signr;
 
 	DBG(1,"\ndo_signal: oldset=0x%p, regs=0x%p, sr7 %#lx, in_syscall=%d\n",
@@ -553,10 +548,15 @@ do_signal(sigset_t *oldset, struct pt_re
 		oldset->sig[0], oldset->sig[1]);
 
 
-	signr = get_signal_to_deliver(&info, regs, NULL);
-	DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]); 
+	/* May need to force signal if handle_signal failed to deliver */
+	while (1) {
+	  
+		signr = get_signal_to_deliver(&info, &ka, regs, NULL);
+		DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]); 
 	
-	if (signr > 0) {
+		if (signr <= 0)
+		  break;
+		
 		/* Restart a system call if necessary. */
 		if (in_syscall) {
 			/* Check the return code */
@@ -569,8 +569,7 @@ do_signal(sigset_t *oldset, struct pt_re
 				break;
 
 			case -ERESTARTSYS:
-				ka = &current->sighand->action[signr-1];
-				if (!(ka->sa.sa_flags & SA_RESTART)) {
+				if (!(ka.sa.sa_flags & SA_RESTART)) {
 					DBG(1,"ERESTARTSYS: putting -EINTR\n");
 					regs->gr[28] = -EINTR;
 					break;
@@ -578,8 +577,7 @@ do_signal(sigset_t *oldset, struct pt_re
 			/* fallthrough */
 			case -ERESTARTNOINTR:
 				/* A syscall is just a branch, so all
-                                   we have to do is fiddle the return
-                                   pointer. */
+				   we have to do is fiddle the return pointer. */
 				regs->gr[31] -= 8; /* delayed branching */
 				/* Preserve original r28. */
 				regs->gr[28] = regs->orig_r28;
@@ -589,12 +587,13 @@ do_signal(sigset_t *oldset, struct pt_re
 		/* Whee!  Actually deliver the signal.  If the
 		   delivery failed, we need to continue to iterate in
 		   this loop so we can deliver the SIGSEGV... */
-		if (handle_signal(signr, &info, oldset, regs, in_syscall)) {
+		if (handle_signal(signr, &info, &ka, oldset, regs, in_syscall)) {
 			DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n",
 				regs->gr[28]);
 			return 1;
 		}
 	}
+	/* end of while(1) looping forever if we can't force a signal */
 
 	/* Did we come from a system call? */
 	if (in_syscall) {
Index: kernel/signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/kernel/signal.c,v
retrieving revision 1.22
diff -u -p -r1.22 signal.c
--- kernel/signal.c	20 Jul 2004 22:07:41 -0000	1.22
+++ kernel/signal.c	27 Aug 2004 18:17:53 -0000
@@ -1725,7 +1725,8 @@ static inline int handle_group_stop(void
 	return 1;
 }
 
-int get_signal_to_deliver(siginfo_t *info, struct pt_regs *regs, void *cookie)
+int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, 
+		struct pt_regs *regs, void *cookie)
 {
 	sigset_t *mask = &current->blocked;
 	int signr = 0;
@@ -1794,8 +1795,15 @@ relock:
 		ka = &current->sighand->action[signr-1];
 		if (ka->sa.sa_handler == SIG_IGN) /* Do nothing.  */
 			continue;
-		if (ka->sa.sa_handler != SIG_DFL) /* Run the handler.  */
+		if (ka->sa.sa_handler != SIG_DFL) {
+			/* Run the handler.  */
+			*return_ka = *ka;
+		  
+			if (ka->sa.sa_flags & SA_ONESHOT)
+			  ka->sa.sa_handler = SIG_DFL;
+			
 			break; /* will return non-zero "signr" value */
+		}
 
 		/*
 		 * Now we are doing the default action for this signal.
Index: include/linux/signal.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/linux/signal.h,v
retrieving revision 1.5
diff -u -p -r1.5 signal.h
--- include/linux/signal.h	20 Jul 2004 22:07:35 -0000	1.5
+++ include/linux/signal.h	27 Aug 2004 18:17:53 -0000
@@ -217,7 +217,8 @@ extern int sigprocmask(int, sigset_t *, 
 
 #ifndef HAVE_ARCH_GET_SIGNAL_TO_DELIVER
 struct pt_regs;
-extern int get_signal_to_deliver(siginfo_t *info, struct pt_regs *regs, void *cookie);
+extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, 
+		struct pt_regs *regs, void *cookie);
 #endif
 
 int copy_siginfo_from_user(siginfo_t *to, siginfo_t __user *from);
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Subject: Re: [parisc-linux] [PATCH] New help text for HIL options
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Xref: news.gmane.org gmane.linux.ports.parisc:21901

On Fri, Aug 27, 2004 at 12:02:19AM -0600, Grant Grundler wrote:
> On Fri, Aug 27, 2004 at 02:21:41AM +0100, Stuart Brady wrote:
> > I hope it's an improvement.
> 
> In general yes.
> Normally, Helge Deller deals with the HIL and related patches.
> I just had one question.
> 
> > -	  The "Human Interface Loop" is a older, 8-channel USB-like
> > +	  Say Y here (or to "HP HIL keyboard support") if you have a
> > +	  PA-RISC machine with a HIL keyboard connected. This driver does
> 
> Is HIL also used on HP m68k workstations as well?
> The ones that predate "snakes" workstations. eg HP 425.

The INPUT_HIL_OLD driver seems to support HP300s, so I think it should
depend on ( PARISC || HP300 ).  None of the other drivers do AFAICS, so
I'll just state this in the text.

Maybe the new HIL drivers could be ported to the HP300, but I don't have
one to test.
-- 
Stuart Brady
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From: Stuart Brady <sdbrady@ntlworld.com>
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Subject: [parisc-linux] [PATCH] ALSA Harmony bugfixes
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Xref: news.gmane.org gmane.linux.ports.parisc:21902

Two patches for the ALSA Harmony driver:

   One fixes a crash when reloading the ALSA Harmony driver.
   The other is a minor cleanup for formats/rates.

--- linux-2.6/sound/parisc/harmony.c	2004-08-26 07:36:02.066664310 +0100
+++ linux-2.6/sound/parisc/harmony.c	2004-08-26 07:46:34.221250320 +0100
@@ -1111,11 +1111,13 @@
 		{	
 			DPRINTK(KERN_INFO PFX "Freeing card %d\n", idx);
 			harmony = snd_harmony_cards[idx]->private_data;
-			free_irq(harmony->irq, snd_card_harmony_interrupt);
+			free_irq(harmony->irq, harmony);
 			printk(KERN_INFO PFX "Card unloaded %d, irq=%d\n", idx, harmony->irq);
 			snd_card_free(snd_harmony_cards[idx]);
 		}
 	}	
+	if (unregister_parisc_driver(&snd_card_harmony_driver) < 0)
+		printk(KERN_ERR "Failed to unregister Harmony driver\n");
 }
 
 module_init(alsa_card_harmony_init)


--- linux-2.6/sound/parisc/harmony.c	2004-08-26 07:36:02.066664310 +0100
+++ linux-2.6/sound/parisc/harmony.c	2004-08-26 07:41:26.158761888 +0100
@@ -283,7 +283,7 @@
 {
 	unsigned int idx;
 	
-	for (idx = 0; idx <= RATES; idx++)
+	for (idx = 0; idx < RATES; idx++)
 		if (snd_card_harmony_rates[idx] == rate)
 			return rate_bits[idx];
 	return HARMONY_SR_44KHZ; /* fallback */
@@ -648,10 +648,10 @@
 					SNDRV_PCM_INFO_JOINT_DUPLEX | 
 					SNDRV_PCM_INFO_MMAP_VALID |
 					SNDRV_PCM_INFO_BLOCK_TRANSFER),
-	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_BE | 
-					SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_MU_LAW),
+	.formats =		(SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
+					SNDRV_PCM_FMTBIT_S16_BE),
 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
-	.rate_min =		5500,
+	.rate_min =		5125,
 	.rate_max =		48000,
 	.channels_min =		1,
 	.channels_max =		2,

-- 
Stuart Brady
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Subject: [parisc-linux] Re: linux signal race fixes,
	patches against hppa tree, please test.
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> jda,
> 
> This is more important for you, approximately 48 hours ago, Linus
> commited a fix for a signal handling race.
> 
> http://linux.bkbits.net:8080/linux-2.6/cset@1.1846.1.48?nav=index.html|Chang
> eSet@-2d
> 
> That is the changeset, and included is a patch against our CVS head 
> that fixes the race condition.
> 
> It could force a thread not to restart or crash, or do all sorts of
> things. It may be the bug you are seeing.

Have you tried the patch and the testcase?  The reference indicates that
it brought down a i386 SMP system in milliseconds.

> Please test it out and see if it makes the builds more stable. It could
> be the reason for random sigsegvs with expect/tcl.
> 
> The patch fixes our arch code so we *never* have a k_sigaction that
> wasn't copied without a lock held.
> 
> The new code passes around a pointer to an arch allocated k_sigaction
> and copies it with the lock held so it can't be changed between 'check'
> and 'delivery.'

Sounds good.  I think it is likely that even with this fix tcl8.4 still
needs the fix for the exit deadlock.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] memory barriers, spinlocks, debuglocks, oh my
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Carlos O'Donell wrote:
>  On Fri, 2004-08-27 at 12:37, Kyle McMartin wrote:
[...]

>>
>>if (<some statement>)
>>	spin_lock_init(x);
> 
> 
> I always recommend macros should be encased with "({ ... })" which give
> you a new scope for variable declarations aswell.
> 

Do I well undesrtand: replace e.g.
#define SPIN_LOCK_IRQSAVE(l,f) do {            \
        spinlock_t *s = ATOMIC_HASH(l);                 \
        local_irq_save(f);                              \
        spin_lock(s);                                   \
} while(0)

by
#define SPIN_LOCK_IRQSAVE(l,f) ({            \
        spinlock_t *s = ATOMIC_HASH(l);                 \
        local_irq_save(f);                              \
        spin_lock(s);                                   \
})

I admit that I never find the right way to choose between those 2 forms?

TIA,
	Joel
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Subject: Re: [parisc-linux] memory barriers, spinlocks, debuglocks, oh my
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On Sat, Aug 28, 2004 at 04:57:57PM +0000, Joel Soete wrote:
> #define SPIN_LOCK_IRQSAVE(l,f) ({            \
>        spinlock_t *s = ATOMIC_HASH(l);                 \
>        local_irq_save(f);                              \
>        spin_lock(s);                                   \
> })
> 
This form allows you to use SPIN_LOCK_IRQSAVE as an rvalue, as in

#define foo(a) ({ \
	int _b = 10;
	_b += a;
	_b;
})

baz = foo(10);
baz == 20;

Cheers,
-- 
Kyle McMartin
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Once more unto the brink,

Commitable?

Index: arch/parisc/lib/locks.c
===================================================================
RCS file: /var/cvs/linux-2.4/arch/parisc/lib/locks.c,v
retrieving revision 1.1
diff -u -r1.1 locks.c
--- arch/parisc/lib/locks.c	16 Nov 2002 07:28:08 -0000	1.1
+++ arch/parisc/lib/locks.c	28 Aug 2004 18:55:59 -0000
@@ -24,6 +24,8 @@
 {
 	int cpu = smp_processor_id();
 	unsigned int stuck = INIT_STUCK;
+
+	mb();
 	while (!__spin_trylock(lock)) {
 		while ((unsigned volatile long)lock->lock == 0) {
 			if (!--stuck) {
@@ -39,19 +41,23 @@
 	}
 	lock->owner_pc = (unsigned long)__builtin_return_address(0);
 	lock->owner_cpu = cpu;
+	mb();
 }
 
 int spin_trylock(spinlock_t *lock)
 {
+	mb();
 	if (!__spin_trylock(lock))
 		return 0;
 	lock->owner_cpu = smp_processor_id(); 
 	lock->owner_pc = (unsigned long)__builtin_return_address(0);
+	mb();
 	return 1;
 }
 
 void spin_unlock(spinlock_t *lp)
 {
+	mb();
   	if ( lp->lock )
 		printk("spin_unlock(%p): no lock cpu %d curr PC %p %s/%d\n",
 		       lp, smp_processor_id(), __builtin_return_address(0),
@@ -63,6 +69,7 @@
 	lp->owner_pc = lp->owner_cpu = 0;
 	wmb();
 	lp->lock = 1;
+	mb();
 }
 
 #endif
Index: include/asm-parisc/atomic.h
===================================================================
RCS file: /var/cvs/linux-2.4/include/asm-parisc/atomic.h,v
retrieving revision 1.10
diff -u -r1.10 atomic.h
--- include/asm-parisc/atomic.h	13 Sep 2002 21:43:37 -0000	1.10
+++ include/asm-parisc/atomic.h	28 Aug 2004 18:56:09 -0000
@@ -30,8 +30,11 @@
  *
  * XXX REVISIT these could be renamed and moved to spinlock_t.h as well
  */
-#define SPIN_LOCK(x)	do { while(__ldcw(&(x)->lock) == 0); } while(0)
-#define SPIN_UNLOCK(x)  do { (x)->lock = 1; } while(0)
+#define SPIN_LOCK(x) do { while(__ldcw(&(x)->lock) == 0); } while(0)
+#define SPIN_UNLOCK(x) do {  \
+                         __asm__ __volatile__ ("stw,ma %1,0(%0)" \
+                         : : "r" (&(x)->lock), "r" (0) : "memory"); \
+                       } while (0)
 
 #else	/* CONFIG_SMP */
 
Index: include/asm-parisc/spinlock_t.h
===================================================================
RCS file: /var/cvs/linux-2.4/include/asm-parisc/spinlock_t.h,v
retrieving revision 1.5
diff -u -r1.5 spinlock_t.h
--- include/asm-parisc/spinlock_t.h	7 May 2003 17:20:29 -0000	1.5
+++ include/asm-parisc/spinlock_t.h	28 Aug 2004 18:56:09 -0000
@@ -6,29 +6,12 @@
  * Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
  * since it only has load-and-zero.
  */
-#ifdef CONFIG_PA20
-/* 
-> From: "Jim Hull" <jim.hull of hp.com>
-> Delivery-date: Wed, 29 Jan 2003 13:57:05 -0500
-> I've attached a summary of the change, but basically, for PA 2.0, as
-> long as the ",CO" (coherent operation) completer is specified, then the
-> 16-byte alignment requirement for ldcw and ldcd is relaxed, and instead
-> they only require "natural" alignment (4-byte for ldcw, 8-byte for
-> ldcd).
-*/
-
 #define __ldcw(a) ({ \
 	unsigned __ret; \
-	__asm__ __volatile__("ldcw,co 0(%1),%0" : "=r" (__ret) : "r" (a)); \
+	__asm__ __volatile__("ldcw,ma 0(%1),%0" \
+                             : "=r" (__ret) : "r" (a) : "memory"); \
 	__ret; \
 })
-#else
-#define __ldcw(a) ({ \
-	unsigned __ret; \
-	__asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a)); \
-	__ret; \
-})
-#endif
 
 /*
  * Your basic SMP spinlocks, allowing only a single CPU anywhere
@@ -68,15 +51,17 @@
  * Writing this with asm also ensures that the unlock doesn't
  * get reordered
  */
-#define spin_unlock(x) \
-	__asm__ __volatile__ ("stw,ma  %%sp,0(%0)" : : "r" (&(x)->lock) : "memory" )
+#define spin_unlock(x) do { __asm__ __volatile__ ("stw,ma  %%sp,0(%0)" \
+                                    : : "r" (&(x)->lock) : "memory" ); \
+                       } while(0)
 
-#define spin_unlock_wait(x)     do { barrier(); } while(((volatile spinlock_t *)(x))->lock == 0)
+#define spin_unlock_wait(x) do { barrier(); } \
+                            while(((volatile spinlock_t *)(x))->lock == 0)
 
-#define spin_lock(x) do { \
+#define spin_lock(x) do {                \
 	while (__ldcw (&(x)->lock) == 0) \
 		while ((x)->lock == 0) ; \
-} while (0)
+        } while (0)
 
 #else
 
-- 
Kyle McMartin
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Kyle McMartin wrote:
> Once more unto the brink,
> 
> Commitable?
> 
mmm,

[...]

> Index: include/asm-parisc/atomic.h
> ===================================================================
> RCS file: /var/cvs/linux-2.4/include/asm-parisc/atomic.h,v
> retrieving revision 1.10
> diff -u -r1.10 atomic.h
> --- include/asm-parisc/atomic.h	13 Sep 2002 21:43:37 -0000	1.10
> +++ include/asm-parisc/atomic.h	28 Aug 2004 18:56:09 -0000
> @@ -30,8 +30,11 @@
>   *
>   * XXX REVISIT these could be renamed and moved to spinlock_t.h as well
>   */
> -#define SPIN_LOCK(x)	do { while(__ldcw(&(x)->lock) == 0); } while(0)
> -#define SPIN_UNLOCK(x)  do { (x)->lock = 1; } while(0)
> +#define SPIN_LOCK(x) do { while(__ldcw(&(x)->lock) == 0); } while(0)
> +#define SPIN_UNLOCK(x) do {  \
> +                         __asm__ __volatile__ ("stw,ma %1,0(%0)" \
> +                         : : "r" (&(x)->lock), "r" (0) : "memory"); \
> +                       } while (0)
>  
Sorry, but here I am confused: for parisc-linux unlock means (x)->lock = 1?

may be the jda idea: <http://lists.parisc-linux.org/pipermail/parisc-linux/2004-August/024440.html>
#define __lock_reset(lock_addr,tmp) \
   __asm__ __volatile__ ("stw,ma %1,0(%0)" \
			 : : "r" (lock_addr), "r" (tmp) : "memory");
(tmp or flag may be?)

and if I better understand the idea:

#define SPIN_UNLOCK(x)	__lock_reset((&(x)->lock), 1)

What do you think?

Joel
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On Sun, Aug 29, 2004 at 04:11:10PM +0000, Joel Soete wrote:
> Sorry, but here I am confused: for parisc-linux unlock means (x)->lock = 1?
> 
Yes, because the only atomic instruction we have is load and clear.

Cheers,
-- 
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On Sun, 29 Aug 2004 16:11:10 +0000
Joel Soete <soete.joel@tiscali.be> wrote:

> 
> 
> Kyle McMartin wrote:
> > Once more unto the brink,
> > 
> > Commitable?
> > 
> mmm,
> 
> [...]
> 
> > Index: include/asm-parisc/atomic.h
> > ===================================================================
> > RCS file: /var/cvs/linux-2.4/include/asm-parisc/atomic.h,v
> > retrieving revision 1.10
> > diff -u -r1.10 atomic.h
> > --- include/asm-parisc/atomic.h	13 Sep 2002 21:43:37 -0000	1.10
> > +++ include/asm-parisc/atomic.h	28 Aug 2004 18:56:09 -0000
> > @@ -30,8 +30,11 @@
> >   *
> >   * XXX REVISIT these could be renamed and moved to spinlock_t.h as
> >   well*/
> > -#define SPIN_LOCK(x)	do { while(__ldcw(&(x)->lock) == 0); } while(0)
> > -#define SPIN_UNLOCK(x)  do { (x)->lock = 1; } while(0)
> > +#define SPIN_LOCK(x) do { while(__ldcw(&(x)->lock) == 0); } while(0)
> > +#define SPIN_UNLOCK(x) do {  \
> > +                         __asm__ __volatile__ ("stw,ma %1,0(%0)" \
> > +                         : : "r" (&(x)->lock), "r" (0) : "memory"); \
> > +                       } while (0)
> >  
> Sorry, but here I am confused: for parisc-linux unlock means (x)->lock =
> 1?

yes


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/

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> > +#define SPIN_UNLOCK(x) do {  \
> > +                         __asm__ __volatile__ ("stw,ma %1,0(%0)" \
> > +                         : : "r" (&(x)->lock), "r" (0) : "memory"); \
> > +                       } while (0)
> >  
> Sorry, but here I am confused: for parisc-linux unlock means (x)->lock = 1?
> 
> may be the jda idea:
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2004-August/024440.htm
> l>
> #define __lock_reset(lock_addr,tmp) \
>    __asm__ __volatile__ ("stw,ma %1,0(%0)" \
> 			 : : "r" (lock_addr), "r" (tmp) : "memory");
> (tmp or flag may be?)
> 
> and if I better understand the idea:
> 
> #define SPIN_UNLOCK(x)	__lock_reset((&(x)->lock), 1)

To reset the lock, the value 1 needs to be loaded into a register
for the memory store.  In situations where you both lock and unlock,
the value 1 will be loaded into a register, say tmp, on a successful
lock.  This value can be used to reset the lock, saving one instruction.
That's why I had "tmp" in the lock macro.  If you don't have the value
from the previous lock, you can just use 1.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Aug 29, 2004 at 12:13:18PM -0400, Kyle McMartin wrote:
> On Sun, Aug 29, 2004 at 04:11:10PM +0000, Joel Soete wrote:
> > Sorry, but here I am confused: for parisc-linux unlock means (x)->lock = 1?
> > 
> Yes, because the only atomic instruction we have is load and clear.

I think you missed Joel's point.
Where does SPIN_UNLOCK set the register that it stores to 1?

grant

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On Sun, Aug 29, 2004 at 10:06:35PM -0600, Grant Grundler wrote:
> I think you missed Joel's point.
> Where does SPIN_UNLOCK set the register that it stores to 1?
> 
Eh, that's what the "r" (...) does. As I understand it, GCC will have
the value inside the brackets loaded into a register (in this case,
%1 which can be any general register) when the execution path gets to
the assembler.

AIUI, the syntax is
asm(" /* assembler */ "
    : output
    : input
    : clobbers );

Cheers,
-- 
Kyle McMartin
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] memory barriers, spinlocks, debuglocks, oh my
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On Mon, Aug 30, 2004 at 12:14:19AM -0400, Kyle McMartin wrote:
> On Sun, Aug 29, 2004 at 10:06:35PM -0600, Grant Grundler wrote:
> > I think you missed Joel's point.
> > Where does SPIN_UNLOCK set the register that it stores to 1?
> > 
> Eh, that's what the "r" (...) does. As I understand it, GCC will have
> the value inside the brackets loaded into a register (in this case,
> %1 which can be any general register) when the execution path gets to
> the assembler.

Ah ok. But the original code you posted was this:
+#define SPIN_UNLOCK(x) do {  \
+                         __asm__ __volatile__ ("stw,ma %1,0(%0)" \
+                         : : "r" (&(x)->lock), "r" (0) : "memory"); \
+                       } while (0)

which used '"r" (0)' for input.

The correct version got committed though:
#define SPIN_UNLOCK(x) do {  \
		__asm__ __volatile__ ("stw,ma %1,0(%0)" \ 	 
		: : "r" (&(x)->lock), "r" (1) : "memory"); \ 	 
	} while (0)

Sorry...but why did you back this change out in the next commit?

The comment "reverting unnecessary atomic.h changes" is correct.
Strictly speaking, coherent stores are not required.

thanks,
grant
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From: kyle@mcmartin.ca (Kyle McMartin)
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Subject: Re: [parisc-linux] memory barriers, spinlocks, debuglocks, oh my
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On Sun, Aug 29, 2004 at 10:30:20PM -0600, Grant Grundler wrote:
> Ah ok. But the original code you posted was this:
> +#define SPIN_UNLOCK(x) do {  \
> +                         __asm__ __volatile__ ("stw,ma %1,0(%0)" \
> +                         : : "r" (&(x)->lock), "r" (0) : "memory"); \
> +                       } while (0)
> 
This was what Randolph posted earlier in the thread, and I forgot to
spot the error. :\

> Sorry...but why did you back this change out in the next commit?
> 
> The comment "reverting unnecessary atomic.h changes" is correct.
> Strictly speaking, coherent stores are not required.
>
James pointed out that it wasn't necessary, and I wanted to keep changes
to a minimum for the next version of the 2.4.27 Debian packages that
Thibaut was creating.

Sorry for any confusion.

Regards,
-- 
Kyle McMartin
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Subject: [parisc-linux] Proposal for implementing IRQ affinity
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Xref: news.gmane.org gmane.linux.ports.parisc:21915

IRQ affinity really only applies to SMP systems.  However, this proposal
will alter the interrupt layout even on UP systems, so if you care about
that sort of thing, read on. 

Introduction 
============ 

External interrupts on parisc processors are triggered by writing to the
memory mapped control register EIRR (cr23).  Since the mapping of the
EIRR into memory is per processor, and usually programmed into external
devices, the upshot is that each external device usually sents an
interrupt to a specific processor.  The implementation of IRQ affinity
would allow us to redesignate a given interrupt to go to a different CPU
(this would mean, for instance, that we could run the user daemon
irqbalanced to balance out all our interrupts among all the processors).

This arrangement means that parisc has 32 distinct interrupts for a 32
bit kernel and 64 on a 64 bit kernel. 

There is, however, a bus based complication: not all parisc busses allow
an arbitrary device to send and interrupt to a CPU directly.  In
general, the older bus controllers: dino, cujo, etc cannot do this, with
the result that processing interrupts in these busses is two-phase. 
When a device interrupts, the irq is fielded by the dino controller,
which has an interrupt register to interrogate the dino specific lines
and see which actual device interrupted and execute the appropriate irq
handling routine.  The newer iosapic interrupt controllers don't require
this because every device attached to the iosapic can be programmed
directly with a CPU EIRR address and bit number. 

The current parisc scheme involves IRQ regions.  Each region is tied to
a particular EIRR bit (CPU irq number) and also contains all the
interrupt designations for the older bus multiplexing as components of
the irq_region.  This is ideal for the older busses, but a bit wasteful
in the iosapic which doesn't need the intermediate interruption
information. 

The new proposal is to sweep away irq regions completely and instead use
the generic struct hw_interrupt_type from linux/irq.h 

The way this would work is that we'd designate a new cpu_irq array
statically for 32 or 64 of these structures (one per bit in the EIRR). 

The iosapic would be allowed simply to allocate a free one of these
(according to the usual IRQ sharing rules) for any device that needed an
interrupt. 

An older bus would allocate a single one, but would then register a
separate vector of interrupts (also a vector of struct
hw_interrupt_type) along with a callback to select the correct vector
for subsequent execution. 

The hw_interrupt_type structure contains an affinity setting callback
(set_affinity) which can be used to adjust the affinity either
internally or via the /proc interface.  We would expose only the CPU
interrupts (first 32 or 64) as capable of having altered affinity (the
remaining older bus interrupts, being effectively slaved to the affinity
of the corresponding CPU interrupts would have a NULL set_affinity
callback). 

This scheme should move us entirely over to the use of generic interrupt
descriptors and allow the affinity setting of those interrupts which are
susceptible to it (namely only the directly accessible EIRR interrupts).
Any comments before I actually try this?

James 


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> > This is more important for you, approximately 48 hours ago, Linus
> > commited a fix for a signal handling race.
> > 
> > http://linux.bkbits.net:8080/linux-2.6/cset@1.1846.1.48?nav=index.html|Chang
> > eSet@-2d
> 
> I have the patch under test on hiauly6 with todays CVS.

I've been running this now for three days on hiauly6 with a 32-bit
2.6.8.1-pa7 kernel (default c3000 config) doing almost continuous gcc
builds.  Things seem pretty promising.  No random SIGSEGVs and expect
seems to be behaving itself.

> I had another SIGSEGV on gsyprf11.  It looks as if this was in /bin/sh
> although gdb doesn't say which program the fault ocurred in.

This is definitely not the case with the 64-bit SMP kernel on gsyprf11.
There I've been testing with an unpatched kernel.  Expect works better with
tcl8.3 but there are still some tests that fail when they shouldn't, and
the output with tests which produce a large amount of output gets
truncated.  With tcl8.4, expect has major problems.  The Tcl_Finalize
patch doesn't fix them.  I think we need to try Carlos's patch on a
64-bit SMP system to see if it helps the expect and SEGV problems.

I'm off to Korea early Thursday morning so I can't do much more on
this until I'm back in a couple of weeks.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hi

I'm looking for a 32MB or 64MB memory module for my 748i/64 system. If 
anybody has a part they want to sell, could they please email me off-list.

Best regards,

Gavin

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On Monday 30 August 2004 9:31 pm, James Bottomley wrote:
> This arrangement means that parisc has 32 distinct interrupts for a 32
> bit kernel and 64 on a 64 bit kernel. 

You could support 32 (or 64) interrupts per processor if you wanted to,
though I think right now it's only 32 or 64 for the whole system.

> The newer iosapic interrupt controllers don't require
> this because every device attached to the iosapic can be programmed
> directly with a CPU EIRR address and bit number. 

Strictly speaking, iosapics are programmed with a 16-bit ID/EID (not
an actual EIRR address) and an 8-bit vector (not a 5- or 6-bit bit
number.)  I think the chipset is responsible for routing the ID/EID
to the correct processor, and on parisc, probably only 32 (or 64) of
the 256 possible vectors are usable.  I would guess that in addition
to routing based on ID/EID, the chipset also translates the vector
number to a 2^vector mask in the form the EIRR expects.

I think it would be good if parisc adopted the more generic concepts,
because it's a shame that ia64 and parisc have such totally different
code to drive the identical iosapic hardware.

> This scheme should move us entirely over to the use of generic interrupt
> descriptors and allow the affinity setting of those interrupts which are
> susceptible to it (namely only the directly accessible EIRR interrupts).
> Any comments before I actually try this?

I think this is great (though I don't know all the details of parisc
interrupt controllers).
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On Mon, Aug 30, 2004 at 11:31:30PM -0400, James Bottomley wrote:
> IRQ affinity really only applies to SMP systems.  However, this proposal
> will alter the interrupt layout even on UP systems, so if you care about
> that sort of thing, read on. 

*sigh*...that's me, written in big letters on my forehead. :^)

> External interrupts on parisc processors are triggered by writing to the
> memory mapped control register EIRR (cr23).

I don't think this is techinically accurate. The data value written to
the CPU's memory mapped register is transmitted across the bus as is.
This external facing register then converts the (5 or 6 bits for PARISC)
value to a bit mask before it reaches CR23 (EIRR).
IIRC, the PA2.0 I/O ACD defines how the CPU MMIO space is laid out.

> EIRR into memory is per processor, and usually programmed into external
> devices, the upshot is that each external device usually sents an
> interrupt to a specific processor.  The implementation of IRQ affinity
> would allow us to redesignate a given interrupt to go to a different CPU
> (this would mean, for instance, that we could run the user daemon
> irqbalanced to balance out all our interrupts among all the processors).

Thibaut and I started on this last year but didn't get to finish it.
The net result is we have to dump the struct irq_region everywhere 
and replace it with a global IRQ array.

> There is, however, a bus based complication: not all parisc busses allow
> an arbitrary device to send and interrupt to a CPU directly.  In
> general, the older bus controllers: dino, cujo, etc cannot do this,

AFAIK, this is only true for HP V-class.
And only because of some deficiency in the EPAC (CPU to X-bar chip?).
It's not true for every other parisc platform I'm aware of.

PCI and GSC devices can master their own Transaction Based Interrupt (TBI).
GSC device's EIM register are programmed directly with the target address
and vector. PCI devices can master their own TBI if they can be told
which address/data pair to use. E.g. clever scripting for NCR/SYM
scsi chips would allow this and in fact HPUX 10.x c720 SCSI driver does.
Otherwise PCI 2.2 (and later) devices can use MSI or MSI-X to
the same effect. We just need to write the support glue
to make it work for parisc.

>  with
> the result that processing interrupts in these busses is two-phase. 
> When a device interrupts, the irq is fielded by the dino controller,
> which has an interrupt register to interrogate the dino specific lines
> and see which actual device interrupted and execute the appropriate irq
> handling routine. The newer iosapic interrupt controllers don't require
> this because every device attached to the iosapic can be programmed
> directly with a CPU EIRR address and bit number. 

Only one nit: s/every device/every IRQ line/

In all cases, the interrupt controller is a surrogate which converts
the line based interrupt into a TBI.

> The current parisc scheme involves IRQ regions.  Each region is tied to
> a particular EIRR bit (CPU irq number)

Not exactly. An IRQ region groups a bunch of IRQ sources which are managed
by one instance of the interrupt controller driver.

Simple examples to look are the CPU, dino, or lasi IRQ support.
In those cases, a single register maps bits to "downstream" interrupt
sources. We read the register and call the Interrupt Service Routines (ISR)
which correspond to specific bits.

SAPIC is a more complicated since it involves multiple parents.
But the same idea applies: each interrupt source was one entry
in the "region". 

> and also contains all the
> interrupt designations for the older bus multiplexing as components of
> the irq_region.  This is ideal for the older busses, but a bit wasteful
> in the iosapic which doesn't need the intermediate interruption
> information. 

Well, as long as the IRQ line isn't shared, that's true...

> The new proposal is to sweep away irq regions completely and instead use
> the generic struct hw_interrupt_type from linux/irq.h 
>
> The way this would work is that we'd designate a new cpu_irq array
> statically for 32 or 64 of these structures (one per bit in the EIRR). 
> 
> The iosapic would be allowed simply to allocate a free one of these
> (according to the usual IRQ sharing rules) for any device that needed an
> interrupt. 
> 
> An older bus would allocate a single one, but would then register a
> separate vector of interrupts (also a vector of struct
> hw_interrupt_type) along with a callback to select the correct vector
> for subsequent execution. 

I'd rather see one global array (at least 256 entries) with the CPU
(and similar devices) getting a fixed number of consecutive entries.
We should probably reserve the first 16 entries for EISA/ISA support
like we did before.

> The hw_interrupt_type structure contains an affinity setting callback
> (set_affinity) which can be used to adjust the affinity either
> internally or via the /proc interface.  We would expose only the CPU
> interrupts (first 32 or 64) as capable of having altered affinity (the
> remaining older bus interrupts, being effectively slaved to the affinity
> of the corresponding CPU interrupts would have a NULL set_affinity
> callback). 

Sounds good. That will work.

> This scheme should move us entirely over to the use of generic interrupt
> descriptors and allow the affinity setting of those interrupts which are
> susceptible to it (namely only the directly accessible EIRR interrupts).
> Any comments before I actually try this?

It's alot of work. I think that's why thibaut and I ran out of steam
before we finished it. I expect much of the work we did before would
still apply.

Thibaut, you still have a diff or source laying around from that effort?
I might but can't find it right now.

thanks,
grant
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On Tue, 2004-08-31 at 11:13, Bjorn Helgaas wrote:
> You could support 32 (or 64) interrupts per processor if you wanted to,
> though I think right now it's only 32 or 64 for the whole system.

Yes, but in order to do the affinity thing, we have to make it appear as
if a single interrupt vector potentially belongs to all CPUs...

> Strictly speaking, iosapics are programmed with a 16-bit ID/EID (not
> an actual EIRR address) and an 8-bit vector (not a 5- or 6-bit bit
> number.)  I think the chipset is responsible for routing the ID/EID
> to the correct processor, and on parisc, probably only 32 (or 64) of
> the 256 possible vectors are usable.  I would guess that in addition
> to routing based on ID/EID, the chipset also translates the vector
> number to a 2^vector mask in the form the EIRR expects.

Yes, I'm sorry, sloppy terminology.  I don't actually have any iosapic
based machines, so I only had to muck with the iosapic once getting an
a500 SMP working...I was going from memory instead of actually looking
in the code.

> I think it would be good if parisc adopted the more generic concepts,
> because it's a shame that ia64 and parisc have such totally different
> code to drive the identical iosapic hardware.

I agree.

James


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On Tuesday 31 August 2004 11:29 am, James Bottomley wrote:
> On Tue, 2004-08-31 at 11:13, Bjorn Helgaas wrote:
> > You could support 32 (or 64) interrupts per processor if you wanted to,
> > though I think right now it's only 32 or 64 for the whole system.
> 
> Yes, but in order to do the affinity thing, we have to make it appear as
> if a single interrupt vector potentially belongs to all CPUs...

Ah, right.  But for large machines, it might be useful to have multiple
interrupt domains.  We're already pushing the ia64 limit of about 180
available vectors.  All the CPUs in a node could share a vector space,
so you could have affinity at least to CPUs close to the device.  Dunno
how that fits with the current affinity interfaces, though.
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On Tue, Aug 31, 2004 at 11:14:21AM -0600, Grant Grundler wrote:
> > There is, however, a bus based complication: not all parisc busses allow
> > an arbitrary device to send and interrupt to a CPU directly.  In
> > general, the older bus controllers: dino, cujo, etc cannot do this,
> 
> AFAIK, this is only true for HP V-class.
> And only because of some deficiency in the EPAC (CPU to X-bar chip?).
> It's not true for every other parisc platform I'm aware of.

But it's true for several of the subdevices of Lasi/Dino/Wax.

> PCI and GSC devices can master their own Transaction Based Interrupt (TBI).
> GSC device's EIM register are programmed directly with the target address
> and vector. PCI devices can master their own TBI if they can be told
> which address/data pair to use. E.g. clever scripting for NCR/SYM
> scsi chips would allow this and in fact HPUX 10.x c720 SCSI driver does.
> Otherwise PCI 2.2 (and later) devices can use MSI or MSI-X to
> the same effect. We just need to write the support glue
> to make it work for parisc.

That's all true, but doesn't help for Apricot lan, PS/2, serial, Harmony
audio, etc.

> > An older bus would allocate a single one, but would then register a
> > separate vector of interrupts (also a vector of struct
> > hw_interrupt_type) along with a callback to select the correct vector
> > for subsequent execution. 
> 
> I'd rather see one global array (at least 256 entries) with the CPU
> (and similar devices) getting a fixed number of consecutive entries.
> We should probably reserve the first 16 entries for EISA/ISA support
> like we did before.

I'm not sure that's a good idea.  It would give the impression that all
Lasi interrupts could be independently retargetted, which isn't true.
Note that Dino is a little more advanced and has two IRR registers,
so we could theoretically do some cool stuff with that ... but it's not
important enough, IMO.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
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On Tue, 2004-08-31 at 13:14, Grant Grundler wrote:
> I don't think this is techinically accurate. The data value written to
> the CPU's memory mapped register is transmitted across the bus as is.
> This external facing register then converts the (5 or 6 bits for PARISC)
> value to a bit mask before it reaches CR23 (EIRR).
> IIRC, the PA2.0 I/O ACD defines how the CPU MMIO space is laid out.

Yes, already apologised to Bjorn for that one.

> Thibaut and I started on this last year but didn't get to finish it.
> The net result is we have to dump the struct irq_region everywhere 
> and replace it with a global IRQ array.

Yes, I looked at your code.  what I'd like to do is slightly different
because I would have a static array of the actual CPU interrupts.

> > There is, however, a bus based complication: not all parisc busses allow
> > an arbitrary device to send and interrupt to a CPU directly.  In
> > general, the older bus controllers: dino, cujo, etc cannot do this,
> 
> AFAIK, this is only true for HP V-class.
> And only because of some deficiency in the EPAC (CPU to X-bar chip?).
> It's not true for every other parisc platform I'm aware of.

Actually, I meant the way the dino works: My dino device interrupts, the
dino hits the cpu interrupt, but the interrupt has to be routed back
into generic dino code to find out who actually interrupted and then
call their interrupt routine.

> PCI and GSC devices can master their own Transaction Based Interrupt (TBI).
> GSC device's EIM register are programmed directly with the target address
> and vector. PCI devices can master their own TBI if they can be told
> which address/data pair to use. E.g. clever scripting for NCR/SYM
> scsi chips would allow this and in fact HPUX 10.x c720 SCSI driver does.
> Otherwise PCI 2.2 (and later) devices can use MSI or MSI-X to
> the same effect. We just need to write the support glue
> to make it work for parisc.

Yes, I was basing the above on how we currently work rather than how we
could work.

> >  with
> > the result that processing interrupts in these busses is two-phase. 
> > When a device interrupts, the irq is fielded by the dino controller,
> > which has an interrupt register to interrogate the dino specific lines
> > and see which actual device interrupted and execute the appropriate irq
> > handling routine. The newer iosapic interrupt controllers don't require
> > this because every device attached to the iosapic can be programmed
> > directly with a CPU EIRR address and bit number. 
> 
> Only one nit: s/every device/every IRQ line/
> 
> In all cases, the interrupt controller is a surrogate which converts
> the line based interrupt into a TBI.
> 
> > The current parisc scheme involves IRQ regions.  Each region is tied to
> > a particular EIRR bit (CPU irq number)
> 
> Not exactly. An IRQ region groups a bunch of IRQ sources which are managed
> by one instance of the interrupt controller driver.
> 
> Simple examples to look are the CPU, dino, or lasi IRQ support.
> In those cases, a single register maps bits to "downstream" interrupt
> sources. We read the register and call the Interrupt Service Routines (ISR)
> which correspond to specific bits.
> 
> SAPIC is a more complicated since it involves multiple parents.
> But the same idea applies: each interrupt source was one entry
> in the "region". 

Yes, I was oversimplifying.  Basically the abstraction is unnecessary
for the SAPIC, which is why it looks slightly odd there.

> I'd rather see one global array (at least 256 entries) with the CPU
> (and similar devices) getting a fixed number of consecutive entries.
> We should probably reserve the first 16 entries for EISA/ISA support
> like we did before.

Well, I'd really rather see an IRQ hierarchy.  Currently our irq list is
a total fiction ... if we display what we actually have (namely the 32
or 64 interrupt lines with everything else hanging off them) it's more
intuitively obvious what's going on.

> It's alot of work. I think that's why thibaut and I ran out of steam
> before we finished it. I expect much of the work we did before would
> still apply.
> 
> Thibaut, you still have a diff or source laying around from that effort?
> I might but can't find it right now.

Well, moving to a single 32/64 global array and treating the older
busses as special cases hopefully simplifies this ... I 'll see though
as I get into it.

James


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On Tue, Aug 31, 2004 at 06:43:57PM +0100, Matthew Wilcox wrote:
...
> > I'd rather see one global array (at least 256 entries) with the CPU
> > (and similar devices) getting a fixed number of consecutive entries.
> > We should probably reserve the first 16 entries for EISA/ISA support
> > like we did before.
> 
> I'm not sure that's a good idea.

In linux-ia64-test-2.6.8.1/arch/ia64/kernel/iosapic.c:
        unsigned int    gsi_base;       /* first GSI assigned to this IOSAPIC */

Looks like that's what ia64 is doing and I don't see a problem with it.

One of the drawbacks of IRQ regions is they are 32 or 64 entries wide
regardless of many are actually used.

>  It would give the impression that all
> Lasi interrupts could be independently retargetted, which isn't true.

James mentioned this is a problem in his proprosal as well.
If we don't provide /proc/irq/<IRQ#>/smp_affinity, I don't see how
someone could be confused about it. Each IRQ entry will have
it's own function pointer to indicate if it supports redirection
or not.

I don't see how this related to single global array vs multiple arrays.

> Note that Dino is a little more advanced and has two IRR registers,
> so we could theoretically do some cool stuff with that ... but it's not
> important enough, IMO.

I agree.

grant
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On Tue, Aug 31, 2004 at 01:49:07PM -0400, James Bottomley wrote:
> > Thibaut and I started on this last year but didn't get to finish it.
> > The net result is we have to dump the struct irq_region everywhere 
> > and replace it with a global IRQ array.
> 
> Yes, I looked at your code.

Ah good.

> what I'd like to do is slightly different
> because I would have a static array of the actual CPU interrupts.

Ok. Why?
I'd really like one method to convert GSI to local interrupt numbers.
Doing away with local translations and directly indexing into a global
array seems the most obvious to me.

> > AFAIK, this is only true for HP V-class.
> > And only because of some deficiency in the EPAC (CPU to X-bar chip?).
> > It's not true for every other parisc platform I'm aware of.
> 
> Actually, I meant the way the dino works: My dino device interrupts, the
> dino hits the cpu interrupt, but the interrupt has to be routed back
> into generic dino code to find out who actually interrupted and then
> call their interrupt routine.

Yes , that's correct. Sorry, I wasn't clear. I was quibbling over this bit:
| not all parisc busses allow
| an arbitrary device to send and interrupt to a CPU directly.

The "AFAIK" comment I wrote above really only applies to this statment.
MSI capable PCI devices can master it's own interrupt transaction
below dino.  That does not mean *every* PCI is MSI capable.
In contrast, every GSC device *must* master it's TBI.
And LASI sub devices are neither.

Does that make more sense?

> > SAPIC is a more complicated since it involves multiple parents.
> > But the same idea applies: each interrupt source was one entry
> > in the "region". 
> 
> Yes, I was oversimplifying.  Basically the abstraction is unnecessary
> for the SAPIC, which is why it looks slightly odd there.

But we still want dino/PCI to work. So we have to replace the
existing abstraction with another one...

> 
> > I'd rather see one global array (at least 256 entries) with the CPU
> > (and similar devices) getting a fixed number of consecutive entries.
> > We should probably reserve the first 16 entries for EISA/ISA support
> > like we did before.
> 
> Well, I'd really rather see an IRQ hierarchy.

A single global array can implement a hierarchy as well.
Entries just contain indexes into other parts of the array.

>   Currently our irq list is
> a total fiction ... if we display what we actually have (namely the 32
> or 64 interrupt lines with everything else hanging off them) it's more
> intuitively obvious what's going on.

*nod*

> > It's alot of work. I think that's why thibaut and I ran out of steam
> > before we finished it. I expect much of the work we did before would
> > still apply.
> > 
> > Thibaut, you still have a diff or source laying around from that effort?
> > I might but can't find it right now.
> 
> Well, moving to a single 32/64 global array and treating the older
> busses as special cases hopefully simplifies this ... I 'll see though
> as I get into it.

Ok. Pushing everything into a global array would make the /proc/irq support
alot easier IMHO.

thanks,
grant
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Hi,

when doing heavy io on my 715/64, i sometimes get the following panic:

scsi0 (0:0) Target is suffering from tag starvation.

scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 18 66 f2 00 00 08 00
scsi0 (0:0) New error handler wants to abort command
        0x00 00 00 00 00 00
scsi0: Bus Reset detected, executing command 00000000, slot 00000000, dsp
00358] failing command because of reset, slot 00008788, cmnd 103c3000
 failing command because of reset, slot 000088bc, cmnd 103c3200
 failing command because of reset, slot 000089f0, cmnd 103c4800
 failing command because of reset, slot 00008d8c, cmnd 103c3a00
 failing command because of reset, slot 00008ff4, cmnd 103c3a00
 failing command because of reset, slot 0000925c, cmnd 103c3400
 failing command because of reset, slot 00009390, cmnd 103c4c00
 failing command because of reset, slot 00009994, cmnd 103c4e00
 failing command because of reset, slot 00009bfc, cmnd 100f8c00
 failing command because of reset, slot 00009f98, cmnd 103c4600
 failing command because of reset, slot 0000a334, cmnd 103c4200
 failing command because of reset, slot 0000a468, cmnd 103c4a00
 failing command because of reset, slot 0000a6d0, cmnd 103c3800
 failing command because of reset, slot 0000a938, cmnd 103c4400
 failing command because of reset, slot 0000aa6c, cmnd 100f8e00
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 18 66 4a 00 00 08 00
scsi0: (0:0) Synchronous at offset 8, period 100ns
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 18 66 9a 00 00 08 00
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 18 65 ca 00 00 08 00
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 01 4c c0 00 00 10 00
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 18 66 ca 00 00 08 00
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 18 66 7a 00 00 08 00
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 18 66 3a 00 00 08 00
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 18 66 8a 00 00 08 00
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 18 66 aa 00 00 08 00
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 18 66 e2 00 00 08 00
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 18 78 e2 00 00 20 00
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 01 4c 98 00 00 20 00
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 18 79 0a 00 00 08 00
scsi0 (0:0) New error handler wants to abort command
        0x28 00 00 18 66 2a 00 00 08 00
scsi0 (0:0) New error handler wants device reset
        0x28 00 00 18 66 f2 00 00 08 00
scsi0 (0:0) New error handler wants BUS reset, cmd 103c3a00
        0x28 00 00 18 66 f2 00 00 08 00
scsi0: Bus Reset detected, executing command 00000000, slot 00000000, dsp
00358]scsi0: (0:0) Synchronous at offset 8, period 100ns
SLOTS FULL, but count is 8, should be 64

Stack Dump:
 10370980:  0004ff0e 101ba834 10370900 10264aa0
 10370970:  00000000 101ba548 103b8a00 103b8a68
 10370960:  00000010 00000020 1010e2c8 0000001f
 10370950:  90080000 ffffffba 00000000 00000002
 10370940:  f000b858 f0000704 00000000 00000001
 10370930:  102f6660 100fa474 100fa49c 1027637c

Kernel addresses on the stack:
 [<101ba834>]  [<101ba548>]  [<1010e2c8>]  [<101b319c>]
 [<101ab4a0>]  [<101ac228>]  [<101b3b80>]  [<101204ac>]
 [<101b319c>]  [<1013df08>]  [<101bb920>]  [<10118604>]
 [<1013f3d4>]  [<101ac228>]  [<101abf70>]  [<1014e684>]
 [<101ba834>]  [<101205fc>]  [<101204ac>]  [<101b30e4>]
 [<101201f4>]  [<101207c4>]  [<10106c4c>]  [<10106cf4>]
 [<101352bc>]  [<101628d4>]  [<101355b8>]  [<10162b5c>]
 [<10121580>]  [<10162b5c>]  [<1012071c>]  [<1012150c>]
 [<10129124>]  [<1011f4bc>]

Kernel Fault: Code=26 regs=10370980 (Addr=00000114)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110 Not tainted
r00-03  00000000 10264810 101ba548 101abdb4
r04-07  10375c00 103b9e00 10311810 00000000
r08-11  103b9eb8 1027637c 100fa49c 100fa474
r12-15  102f6660 00000001 00000000 f0000704
r16-19  f000b858 00000002 00000000 00000000
r20-23  00000001 0000001f 102d13a0 102f6010
r24-27  00000001 00000001 00000003 10254010
r28-31  00000000 ffffe531 10370980 1011b954
sr0-3   00000000 00000129 00000000 00000129
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101ba548 101ba54c
 IIR: 6b850228    ISR: 00000000  IOR: 00000114
 CPU:        0   CR30: 10370000 CR31: 102e0000
 ORIG_R28: 00000002

I tried decreasing the number of tags in 53c700.h, but that made the
problem even worse. However, increasing the number to an insane 128 fixed
the problem for me (and the number of active tags really goes up to 80
while doing heavy io and back to 0 at the end, so i don't blame the
devices for the problem). For now i guess there might be something fishy
with the "starving tag" detection and the attempt to "fix" the situation.

Kernel: 2.4.26-pa7, but any older kernel (tested since 2.4.21) shows the
exact same behaviour.

Thanks,
Jochen
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On Tue, Aug 31, 2004 at 07:57:50PM +0100, Matthew Wilcox wrote:
> > Looks like that's what ia64 is doing and I don't see a problem with it.
> 
> ia64 doesn't have Lasi.

No, but ia64 supports ISA. :^)
(They have their own evils to deal with)

Seriously, what problem does LASI bring that can't be handled with
a global array?

grant
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On Tue, 2004-08-31 at 14:34, Grant Grundler wrote:
> Ok. Why?

Because the only interrupts we can control the affinity of are the true
32/64 CPU interrupts. Everything else is effectively hanging off one of
these. If we try to pretend that we can change the affinity of the
subordinate interrupts, we'll end up confusing irqbalanced

> I'd really like one method to convert GSI to local interrupt numbers.
> Doing away with local translations and directly indexing into a global
> array seems the most obvious to me.

I know, but our interrupt structure isn't a flat array, it's a tree with
the root being a given CPU interrupt.  Obviously, since we have to give
some cookie to the devices to identify the interrupt, we end up having a
numeric array.

> But we still want dino/PCI to work. So we have to replace the
> existing abstraction with another one...

Yes, the abstraction for dino/PCI is that we allocate extra interrupts
to the region, but they're unequivocally tied to the give CPU interrupt
line the dino happens to be using.

> A single global array can implement a hierarchy as well.
> Entries just contain indexes into other parts of the array.

Yes, but we need to expose only the cpu interrupts to irqbalanced.  The
problem is that for the purposes of affinity, we can't treat the
fictitious subordinate interrupts as being ordinary independent
interrupts.

James


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On Tue, Aug 31, 2004 at 08:28:11PM +0100, Matthew Wilcox wrote:
> So PA-RISC supports ISA and ia64 doesn't :-P

yes, thanks for the correction. You are right.
I was staring at arch/ia64/kernel/iosapic.c...only it has ISA support.

> > Seriously, what problem does LASI bring that can't be handled with
> > a global array?
> 
> The subdevices that can't have their own processor interrupt.

That has nothing to do with using a global IRQ array.
It just means LASI subdevices can't be redirected individually.
They will still be assigned a global IRQ number.
PCI devices using IRQ lines below DINO will have the same problem.
Ditto for E/ISA support under WAX.

thanks for the correction,
grant
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On Tue, Aug 31, 2004 at 01:21:12PM -0600, Grant Grundler wrote:
> On Tue, Aug 31, 2004 at 07:57:50PM +0100, Matthew Wilcox wrote:
> > > Looks like that's what ia64 is doing and I don't see a problem with it.
> > 
> > ia64 doesn't have Lasi.
> 
> No, but ia64 supports ISA. :^)
> (They have their own evils to deal with)

Er.  Says who?

$ grep ISA arch/ia64/Kconfig 
          your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
config DISABLE_VHPT
$ grep ISA drivers/parisc/Kconfig 
menu "Bus options (PCI, PCMCIA, EISA, GSC, ISA)"
          715/100.  Wax includes an EISA adapter, a serial port (not always
config EISA
        bool "EISA support"
          Say Y here if you have an EISA bus in your machine.  This code
          supports both the Mongoose & Wax EISA adapters.  It is sadly
config ISA
        bool "ISA support"
        depends on EISA
          If you want to plug an ISA card into your EISA bus, say Y here.

So PA-RISC supports ISA and ia64 doesn't :-P

In any case, ISA devices don't have subdevices.

> Seriously, what problem does LASI bring that can't be handled with
> a global array?

The subdevices that can't have their own processor interrupt.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Tue, Aug 31, 2004 at 03:44:14PM -0400, James Bottomley wrote:
> On Tue, 2004-08-31 at 14:34, Grant Grundler wrote:
> > Ok. Why?
> 
> Because the only interrupts we can control the affinity of are the true
> 32/64 CPU interrupts. Everything else is effectively hanging off one of
> these.

Yes - agreed.

>  If we try to pretend that we can change the affinity of the
> subordinate interrupts, we'll end up confusing irqbalanced

We don't need to pretend anything.
irqbalance-0.9 looks for smp_affinity entry in /proc:

        for (i = 0; i < MAX_INTERRUPTS; i++) {
                /* shortcut: if old and new cpu are identical, don't do a thing
*/
                if (interrupts[i].oldcpu == interrupts[i].cpu)
                        continue;
                if (interrupts[i].type == IRQ_INACTIVE)
                        continue;
                snprintf(filename,255,"/proc/irq/%i/smp_affinity",i);
                file = fopen(filename, "w");
                if (file==NULL)
                        continue;
                if (interrupts[i].cpu < MAX_CPU)
                        fprintf(file,"%x",1<<interrupts[i].cpu);
                else
                        fprintf(file,"ffffffff");
                fclose(file);
        }

We can just not create smp_affinity entries for anything that doesn't
talk directly to a CPU.

On a related issue:
Can we represent per CPU EIRR switch tables with this scheme?
I know we can with existing IRQ regions.
I think not with the new scheme since only one global IRQ maps to
one EIRR bit on all CPUs.

I think we need to disassociate a global IRQ table from the CPU EIRR
switch tables. I'm ok with this for a future project but want to
sketch out what needs to change in order to make it happen.
I suspect this would be a cool project for ESIEE or someone
like that. :^)

> > I'd really like one method to convert GSI to local interrupt numbers.
> > Doing away with local translations and directly indexing into a global
> > array seems the most obvious to me.
> 
> I know, but our interrupt structure isn't a flat array, it's a tree with
> the root being a given CPU interrupt.  Obviously, since we have to give
> some cookie to the devices to identify the interrupt, we end up having a
> numeric array.

Yes. A numeric array isn't a flat array?
Global IRQ #s still makes the most sense to me.

I implemented the IRQ region support thinking the existing IRQ hierarchy
required a hierarchial data structure. But that was heavily influenced
by my previous experience with HPUX which does not use global IRQ numbers
to represent IRQ sources. The arch specific IRQ support really needs to
reflect whatever "core" identifier is used and today that is the global
IRQ number.

> > But we still want dino/PCI to work. So we have to replace the
> > existing abstraction with another one...
> 
> Yes, the abstraction for dino/PCI is that we allocate extra interrupts
> to the region, but they're unequivocally tied to the give CPU interrupt
> line the dino happens to be using.

Can you expand on how PCI IRQs will be generated/decoded?
or want to whack at an implementation first?

> > A single global array can implement a hierarchy as well.
> > Entries just contain indexes into other parts of the array.
> 
> Yes, but we need to expose only the cpu interrupts to irqbalanced.

No. We only need to expose smp_affinity "property".
I still want LASI/PCI IRQs to show up in /proc/interrupts statistics.
ie, they must have a globally assigned IRQ "cookie".

>   The
> problem is that for the purposes of affinity, we can't treat the
> fictitious subordinate interrupts as being ordinary independent
> interrupts.

We can. We just can't indicate they support SMP affinity.

grant
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: linux signal race fixes,
	patches against hppa tree, please te
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Cc: James.Bottomley@steeleye.com,
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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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	Anglin" at Aug 31, 2004 00:23:33 am
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> I've been running this now for three days on hiauly6 with a 32-bit
> 2.6.8.1-pa7 kernel (default c3000 config) doing almost continuous gcc
> builds.  Things seem pretty promising.  No random SIGSEGVs and expect
> seems to be behaving itself.

As usual, I have to eat my words.  The libjava "PR218 -O3 execution -
source compiled test" hung in the libjava testsuite on the next gcc
build.  Looking at libjava.log, I see that there is no "WARNING:
program timed out." message for this test.  Thus, the alarm signal
for this test somehow got lost.  The testsuite continued after I
killed PR218.exe.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Michael S. Zick" <mszick@wolfbutter.com>
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Subject: Re: [parisc-linux] Proposal for implementing IRQ affinity
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On Tue August 31 2004 14:28, Matthew Wilcox wrote:
> On Tue, Aug 31, 2004 at 01:21:12PM -0600, Grant Grundler wrote:
> 
> In any case, ISA devices don't have subdevices.
> 
Perhaps not in the sense you are speaking of (not
in the terms that PCI does)...

But, for instance, DigiBoard has 4, 8, (16?) subdevices
which are distingushed in the driver in cooperation with
the on-board processor.

Probably would fall into your irq tree just like an hp
buss device that doesn't let you diddle the interrupt
sources/assignment the other side of the device/
controller.

My point;
Perhaps you'll need to allow for a next
level tree at each EISA/ISA interrupt to support multi-port
serial boards and other 'intelligent' controllers.

Mike
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] Proposal for implementing IRQ affinity
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On Tue, Aug 31, 2004 at 04:26:16PM -0500, Michael S. Zick wrote:
> On Tue August 31 2004 14:28, Matthew Wilcox wrote:
> > In any case, ISA devices don't have subdevices.
> 
> But, for instance, DigiBoard has 4, 8, (16?) subdevices
> which are distingushed in the driver in cooperation with
> the on-board processor.

But they're 4/8/16 of the same thing, not a set of completely different
devices with independent drivers that all expect to call request_irq()
and get reasonable results.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Hello.

For some time now, I installed debian/testing on some spare C200+.
I didn't have much time to play around with it until now. Recently I 
discovered, it hangs completly, without any message, under heavy disc 
load (eg. bzip2 -cd kernel-source-2.6.8.tar.bz | tar xf -, or apt-get 
upgrade cycle).

As I am not familiar with hppa architecture, where should I start to 
snoop from? I've tried both 2.4.x and 2.6.x kernels, both stock and 
custom compiled and they both behave the same way.

TIA,
BO
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Subject: Re: [parisc-linux] [newbie] Where to start from?
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Joel Soete wrote:

> Just to be sure that I well understand: do you mean that you tried the 
> same operation when runing 2.4.x and 2.6.x?
Yes, I tried to untar kernel source both under 2.4 and 2.6. No 
difference, if it was stock, or custom compiled kernel. It hangs 
randomly under heavy disc load.

> The very first step would be that you send us a dmesg.
Attached. This particular kernel seems to be most stable on my machine, 
which surprises me after few months on the list.

> As it seems to be a disk pb: check the scsi chain [...]
I've double checked this, but everything seems to be fine.

> If you still have a diagnostic hp cd, boot with this one and check the 
> disks.
I'll try to figure out this, but I'm afraid the only CDs we have are 
with HP-UX 10.20 :(

This machine worked as network monitoring station with HP-UX/HP OV on 
it, it has never reported any problems with any disk.

Regards,
BO

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Tx BO,


Bartlomiej Ochman wrote:
> Joel Soete wrote:
> 
>> Just to be sure that I well understand: do you mean that you tried the 
>> same operation when runing 2.4.x and 2.6.x?
> 
> Yes, I tried to untar kernel source both under 2.4 and 2.6. No 
> difference, if it was stock, or custom compiled kernel. It hangs 
> randomly under heavy disc load.
> 
mmm in normal operation, can the system run severall hours without pb?
(in case of over heating (fan hs), system quartz failure, ...)

And when system hung, if you wait some minutes (about 3 min iirc), don't you read SCSI BUS RESET messages at the console?

That said, it would make me thought to a pb I encounter with my c110 (exactely the same decription) but the driver pb was 
ncr53c720 (not concerned here) and for some 2.6 only (no pb with 2.4)
>> The very first step would be that you send us a dmesg.
> 
> Attached. This particular kernel seems to be most stable on my machine, 
mmm I just noticed:
...
Cujo version 2.0 found at 0xf1000000
Enabling Cujo 2.0 bug workaround
Don't recognise Cujo at address 0xf1000000, not enabling workaround
Cujo: No PCI devices enabled.
...

duno if it's important or not?

> 
> I've double checked this, but everything seems to be fine.
> 
Nice :)

>> If you still have a diagnostic hp cd, boot with this one and check the 
>> disks.
> 
> I'll try to figure out this, but I'm afraid the only CDs we have are 
> with HP-UX 10.20 :(
> 
Iirc it should stand on "hpux Support+" cd

> This machine worked as network monitoring station with HP-UX/HP OV on 
> it, it has never reported any problems with any disk.
> 
Trust me this logic has no sence in electronic: 3 weeks ago we (I mean an Hp engineer) power off a N system to add a FC card, when 
we try to restart, ...
too bad the boot disk was definitively HS (even thought we check it carefully with mstm before shutdown: the disk never presents 
any pb before?)

That said, the final step is to 'TOC' your system when it hung (do you know the bleue button behind your box?)
then grab the 'ser piminfo' and analyse what you grab on your system when it reboot with 
<http://cvs.parisc-linux.org/build-tools/dump_analyser.sh>

hth,
	Joel
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Joel Soete wrote:

> mmm in normal operation, can the system run severall hours without pb?

Not only hours, but weeks or months. I didn't have troubles during 
instalation, I think 1.5 years ago, when the disks worked hard too. I 
also think, everything started when glibc upgraded to 2.3... and "old" 
sarge with glibc 2.2 and kernel around 2.4.18 had worked without that 
problem.

> And when system hung, if you wait some minutes (about 3 min iirc), don't 
> you read SCSI BUS RESET messages at the console?
Nothing like that. It dies completly, heart stops beating (all diodes on 
the front panel stops blinking). It doesn't respond to anything.

> Trust me this logic has no sence in electronic: 3 weeks ago we (I mean 
> an Hp engineer) power off a N system to add a FC card, when we try to 
> restart, ...
Yeah, I know. But somehow I feel, this is not hardware-related 
problem... There shuould be some symptoms of disk related problems in 
the dmesg after few weeks of working, but I have nothing like that.

> That said, the final step is to 'TOC' your system when it hung (do you 
> know the bleue button behind your box?)
No?

> then grab the 'ser piminfo' and analyse what you grab on your system 
> when it reboot with 
> <http://cvs.parisc-linux.org/build-tools/dump_analyser.sh>
I'll try this, but not before October or so. I'm currently rather busy 
with my MSc final exam.

Thanks,
BO
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On Wed, Sep 01, 2004 at 03:23:47PM +0200, Bartlomiej Ochman wrote:
> Recently I 
> discovered, it hangs completly, without any message, under heavy disc 
> load (eg. bzip2 -cd kernel-source-2.6.8.tar.bz | tar xf -, or apt-get 
> upgrade cycle).
> 
> As I am not familiar with hppa architecture, where should I start to 
> snoop from?

Bartlomiej,
the things we need to know are in this FAQ:
	http://www.parisc-linux.org/faq/kernelbug-howto.html

BTW, please don't compress files you attach - the mail archive
can't search through them.

thanks,
grant
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On Tue, Aug 31, 2004 at 12:39:12PM +0200, Jochen Friedrich wrote:
> Hi,
> 
> when doing heavy io on my 715/64, i sometimes get the following panic:
> 
> scsi0 (0:0) Target is suffering from tag starvation.

Searching for "tag starvation" at
	http://lists.parisc-linux.org/

yields:
	http://lists.parisc-linux.org/pipermail/parisc-linux/2004-August/024357.html

hth,
grant
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Subject: [parisc-linux] Re: linux signal race fixes,
	patches against hppa tree, please te
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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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In-Reply-To: <200408312043.i7VKhBDp005965@hiauly1.hia.nrc.ca> from "John David
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Xref: news.gmane.org gmane.linux.ports.parisc:21941

Hi Randolph,

> > I've been running this now for three days on hiauly6 with a 32-bit
> > 2.6.8.1-pa7 kernel (default c3000 config) doing almost continuous gcc
> > builds.  Things seem pretty promising.  No random SIGSEGVs and expect
> > seems to be behaving itself.
> 
> As usual, I have to eat my words.  The libjava "PR218 -O3 execution -
> source compiled test" hung in the libjava testsuite on the next gcc
> build.  Looking at libjava.log, I see that there is no "WARNING:
> program timed out." message for this test.  Thus, the alarm signal
> for this test somehow got lost.  The testsuite continued after I
> killed PR218.exe.

Ok, the next time around on gsyprf11 expect did a SIGSEGV after the
exact same test.  The timeout warning was printed in the log this time.

The core dump, core.20875, is in my home directory.  The expect
program is /home/dave/opt/gnu/bin/expect.  I can see that expect
died because %r4 has apparently gotten clobbered.  It contains
0.  %r4 was used to restore the pic register after the last call.
We then die in a stub that uses the pic register.

Is there any chance you could look at fixing the backtrace command
in gdb?  Here is the bt:

(gdb) bt
#0  0x406a0ef4 in NativePathInFilesystem () from /usr/lib/libtcl8.4.so.0
#1  0x406d5be4 in Tcl_WaitForEvent () from /usr/lib/libtcl8.4.so.0
#2  0x00000000 in ?? ()
#3  0x00000000 in ?? ()
(gdb) maint print unwind 0x406d5be4
unwind_table_entry (0x6a6744):
        region_start = 0x406d59b0 <Tcl_WaitForEvent+784>
	region_end = 0x406d5e0c <Tcl_WaitForEvent+1900>
	flags = Save_RP
	Region_description = 0x1
	Entry_FR = 0x0
	Entry_GR = 0x10
	Total_frame_size = 0x48
(gdb) disass 0x406a0ee4 0x406a0f04
Dump of assembler code from 0x406a0ee4 to 0x406a0f04:
0x406a0ee4 <NativePathInFilesystem+1668>:       ldw 518(,r1),r21
0x406a0ee8 <NativePathInFilesystem+1672>:       bv r0(r21)
0x406a0eec <NativePathInFilesystem+1676>:       ldw 51c(,r1),r19
0x406a0ef0 <NativePathInFilesystem+1680>:       addil -1800,r19,%r1
0x406a0ef4 <NativePathInFilesystem+1684>:       ldw 320(,r1),r21
0x406a0ef8 <NativePathInFilesystem+1688>:       bv r0(r21)
0x406a0efc <NativePathInFilesystem+1692>:       ldw 324(,r1),r19
0x406a0f00 <NativePathInFilesystem+1696>:       addil -1800,r19,%r1
(gdb) disass 0x406d5bc4 0x406d5bf4
Dump of assembler code from 0x406d5bc4 to 0x406d5bf4:
0x406d5bc4 <Tcl_WaitForEvent+1316>:     stw r8,-34(,sp)
0x406d5bc8 <Tcl_WaitForEvent+1320>:     copy r4,r19
0x406d5bcc <Tcl_WaitForEvent+1324>:     copy r5,r26
0x406d5bd0 <Tcl_WaitForEvent+1328>:     ldo -238(sp),r25
0x406d5bd4 <Tcl_WaitForEvent+1332>:     ldo -1b8(sp),r24
0x406d5bd8 <Tcl_WaitForEvent+1336>:     ldo -138(sp),r23
0x406d5bdc <Tcl_WaitForEvent+1340>:     b,l 0x406a2394 <NativePathInFilesystem+6
964>,rp
0x406d5be0 <Tcl_WaitForEvent+1344>:     ldi 60,r7
0x406d5be4 <Tcl_WaitForEvent+1348>:     cmpib,= -1,ret0,0x406d5b24 <Tcl_WaitForE
vent+1156>
0x406d5be8 <Tcl_WaitForEvent+1352>:     copy r4,r19
0x406d5bec <Tcl_WaitForEvent+1356>:     b,l 0x406a0ef0 <NativePathInFilesystem+1
680>,rp
0x406d5bf0 <Tcl_WaitForEvent+1360>:     copy r14,r26
(gdb) p/x $rp
$1 = 0x406d5bf7
(gdb) disass 0x406a2394 0x406a23a4
Dump of assembler code from 0x406a2394 to 0x406a23a4:
0x406a2394 <NativePathInFilesystem+6964>:       addil -800,r19,%r1
0x406a2398 <NativePathInFilesystem+6968>:       ldw a0(,r1),r21
0x406a239c <NativePathInFilesystem+6972>:       bv r0(r21)

I'm not quite sure how we got to the point of the segfault.  However,
with respect to gdb, the back trace uses the wrong function symbol
in both frames 0 and 1.  We are in a stub in frame 0.  I'm fairly
sure that this is why the bt fails at frame 2.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: linux signal race fixes,
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On Tue, Aug 31, 2004 at 04:43:11PM -0400, John David Anglin wrote:
> > I've been running this now for three days on hiauly6 with a 32-bit
> > 2.6.8.1-pa7 kernel (default c3000 config) doing almost continuous gcc
> > builds.  Things seem pretty promising.  No random SIGSEGVs and expect
> > seems to be behaving itself.
> 
> As usual, I have to eat my words.  The libjava "PR218 -O3 execution -
> source compiled test" hung in the libjava testsuite on the next gcc
> build.  Looking at libjava.log, I see that there is no "WARNING:
> program timed out." message for this test.  Thus, the alarm signal
> for this test somehow got lost.  The testsuite continued after I
> killed PR218.exe.

Losing signals under load is very bad, I don't see where or why this
might be happening. I don't really know what that test does, if it uses
compare_and_swap in any way then it's non-atomic and all sorts of bad
things could happen under load.

I'm still writing my paper, so I can't add the hooks in for this.

c.

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Subject: Re: [parisc-linux] 53c700.c problems with tags?
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On Thu, Sep 02, 2004 at 12:48:01PM +0200, Jochen Friedrich wrote:
> Thanks. However, my post was not a question how to get rid of the problem
> (my servers are running fine) but just a hint that there might be a bug in
> the tag handling code of 53c700.c.

ah ok. I didn't realize you were trying share another clue as to
what the problem might be. We know there were (are?) problems
with 53c700 tag handling.

>  I didn't really look at the code hard enough, but to me it looks like

Well, I haven't looked at that driver recently...

>  if the tag queue is full, the most likely
> next free tag is searched. If it isn't free, but another tag is, the
> message is printed

The tag number is no guarantee of ordering when using unordered
queue tags (LIFO and FIFO are the other two types of tags).
The driver needs to use some sort of time stamp to determine
tag starvation and not based on which tag numbers happen to be in use.

The message shouldn't be printed unless a tag doesn't complete for a while.
e.g. 3 seconds or more after other tagged IOs (which started later) have
completed.

> and some badness happens and the kernel halts.

My guess is the "tag starvation" message implies assumptions
about how unordered tags work are wrong. Someone needs to review
the allocation/deallocation of IO requests to make sure the driver
don't assume the next/prev tag is not used.

> Setting the queue depth to 1 always fixes the problem, because the drive
> has no chance to reorder the tags.
> 
> Setting the queue depth to something as big as 128 also fixes the problem,
> because the queue never gets that full.

ok - thanks for the addional info.

grant
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Hi Grant,

> Searching for "tag starvation" at
> 	http://lists.parisc-linux.org/
>
> yields:
> 	http://lists.parisc-linux.org/pipermail/parisc-linux/2004-August/024357.html

Thanks. However, my post was not a question how to get rid of the problem
(my servers are running fine) but just a hint that there might be a bug in
the tag handling code of 53c700.c. I didn't really look at the code hard
enough, but to me it looks like if the tag queue is full, the most likely
next free tag is searched. If it isn't free, but another tag is, the
message is printed and some badness happens and the kernel halts.

Setting the queue depth to 1 always fixes the problem, because the drive
has no chance to reorder the tags.

Setting the queue depth to something as big as 128 also fixes the problem,
because the queue never gets that full.

Thanks,
Jochen
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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] back to glibc-2.3.3 & gcc-3.4.1 pb
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Hello Carlos,

I co yesterday glibc cvs (ie 2004 09 01) and apply your patch 2004-08-24.
I install debian gcc-3.4.1-7 and the build of this the libc with this compiler failed :(

seems in _dl_make_fptr() I need much more work, ...

I so retry to build with gcc-3.3 (3.3.4-7 deb) and the build just finished with success, so I launch the check now (yes more then 
7h on a c110 ;).

That said, it's the first time that I compare configure log and notice some differences, excepted :
@@ -26,8 +26,8 @@
  checking for ld... ld
  checking version of ld... 2.15, ok
  checking for pwd... /bin/pwd
-checking for hppa-linux-gcc... (cached) /usr/bin/gcc-3.4
-checking version of /usr/bin/gcc-3.4... 3.4.1, ok
+checking for hppa-linux-gcc... (cached) hppa-linux-gcc
+checking version of hppa-linux-gcc... 3.3.4, ok
  checking for gnumake... no
  checking for gmake... no
  checking for make... make

To help to read - as related to 3.4 and + with 3.3 (and yes unstable so binutils 2.15)

@@ -78,7 +78,7 @@
  checking for -z combreloc... no
  checking for -z execstack... yes
  checking for -fpie... no
-checking for -fno-unit-at-a-time... yes
+checking for -fno-unit-at-a-time... no
  checking whether cc puts quotes around section names... no
  checking for assembler .weak directive... yes
  checking for assembler line separator... !
@@ -89,7 +89,7 @@
  checking for DWARF2 unwind info support... no_registry_needed
  checking for __builtin_expect... yes
  checking for __builtin_memset... no
-checking for redirection of built-in functions... yes
+checking for redirection of built-in functions... no
  checking for local label subtraction... yes
  checking for __thread... no
  checking for libgd... no

Is it usefull to try to force gcc-3.4 to work without -fno-unit-at-a-time and (even though I don't know yet how) without 
'redirection of built-in functions' (even thought according to patch description: 
<http://gcc.gnu.org/ml/gcc-patches/2003-04/msg02045.html> this last one is supposed to help glibc build?)

TIA for advise,
	Joel
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Subject: Re: [parisc-linux] Re: back to glibc-2.3.3 & gcc-3.4.1 pb
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> > ../sysdeps/generic/unwind-dw2.c:1021: warning: 
> > 'fallback_frame_state_for' defined but not used
> > rtld.c:730: warning: implicit declaration of function 

This problem in serious and needs to be fixed.  The function
fallback_frame_state_for is needed.  It is only called from an asm and
gcc doesn't know about calls from asm's.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > the weird in this last warning is that it's a very small fnct:
> > [...]
> > static inline void
> > __set_cr27(struct _pthread_descr_struct * cr27)
> > {
> >      asm(
> >                 "ble    0xe0(%%sr2, %%r0)\n\t"
> >         "copy    %0, %%r26"
> >      : : "r" (cr27) : "r26" );
> > }
> > [...]

There might be a bug in gcc's size estimate for asm's.  See the
subsection "Size of an @code{asm}" in the gcc manual.  This could be
checked with a small test program that tries to inline the above.

>     244  static inline pthread_descr thread_self (void) __attribute__
> ((const,always_inline));

This is correct.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Sep 05, 2004 at 10:47:57PM -0400, John David Anglin wrote:
> > > ../sysdeps/generic/unwind-dw2.c:1021: warning: 
> > > 'fallback_frame_state_for' defined but not used
> > > rtld.c:730: warning: implicit declaration of function 
> 
> This problem in serious and needs to be fixed.  The function
> fallback_frame_state_for is needed.  It is only called from an asm and
> gcc doesn't know about calls from asm's.

It will only become important the day we need dwarf2 compat.
That function is used as a fallback if 'frame_state_for' doesn't exist,
and if libgcc_s.so.1 doesn't include '__frame_state_for', in which case
we use a fallback onto the dwarf2 compat code in glibc.

In an sjlj environment fallback_frame_state_for just becomes abort if
the above tests fail, and hence there is an extra
fallback_frame_state_for that doesn't get used in the glibc build with
an sjlj compiler.

See libc/sysdeps/generic/framestate.c for the fixes I made to this file.

c.

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On Sun, Sep 05, 2004 at 10:39:10PM -0400, John David Anglin wrote:
> >      0x411cc740 <_dl_make_fptr+112>: ldw,s r7(,r6),ret0
> > in:
> > r7 == 0x7c4
> > r6 == 0x0
> 
> r6 is wrong.  Find out why it is zero.

Agreed. It's crashing because it has bogus input in my opinion.

c.

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Hello Dave,

John David Anglin wrote:
>>     0x411cc740 <_dl_make_fptr+112>: ldw,s r7(,r6),ret0
>>in:
>>r7 == 0x7c4
>>r6 == 0x0
> 
> 
> r6 is wrong.  Find out why it is zero.
> 
Far from being an expert, with help of ddd it seems that:
ElfW(Addr)
_dl_make_fptr (struct link_map *map, const ElfW(Sym) *sym,
                ElfW(Addr) ip)
{
   ElfW(Addr) *ftab = map->l_mach.fptr_table;	<====[2]

(Elf32_Addr *)fptr_table == (Elf32_Addr *) 0x0

(the same for gcc-3.3 ;) )

is:
Dump of assembler code from 0x411e371c to 0x411e381c:
     0x411e371c <_dl_make_fptr+76>:  ldw 1fc(,r26),r6 (r6 == 0x0)

the weird stuff his in fact here:

   if (__builtin_expect (ftab == NULL, 0))
     ftab = make_fptr_table (map);

with gcc-3.3 the register (r7) (which seems to me contains the value pointed by ftab) is well the one addressed by 
map->l_mach.fptr_table ie map->l_mach.fptr_table == 0x40001000 (and btw map->l_mach.fptr_table_len == 2067)

OTC with gcc-3.4 the register (r6) after the 'call' of the inlined make_fptr_table() is restored to its starting value i.e.: 0x0
eventhought that map->l_mach.fptr_table == 0x40001000 (and btw map->l_mach.fptr_table_len == 2067) exactly the same as gcc-3.3.

duno if it could help:
for gcc-3.3 the text is:
Dump of assembler code from 0x412630d0 to 0x412631d0:
     0x412630d0 <_dl_make_fptr+44>:  ldw 1fc(,r26),r7	<====[2]
     0x412630d4 <_dl_make_fptr+48>:  copy r26,r8
     0x412630d8 <_dl_make_fptr+52>:  cmpib,= 0,r7,0x412631a0 <_dl_make_fptr+252>	<===='call' make_fptr_table()
     0x412630dc <_dl_make_fptr+56>:  copy r25,r3
     0x412630e0 <_dl_make_fptr+60>:  ldw 30(,r8),r20
     0x412630e4 <_dl_make_fptr+64>:  ldw 1f8(,r8),r22
     0x412630e8 <_dl_make_fptr+68>:  ldw 4(,r20),r21
     0x412630ec <_dl_make_fptr+72>:  sub r3,r21,r21
     0x412630f0 <_dl_make_fptr+76>:  extrw,s r21,27,28,r21
     0x412630f4 <_dl_make_fptr+80>:  cmpb,<<= r22,r21,0x41263184 <_dl_make_fptr+224>
     0x412630f8 <_dl_make_fptr+84>:  depw,z r21,29,30,r9
     0x412630fc <_dl_make_fptr+88>:  add,l r9,r7,r21
     0x41263100 <_dl_make_fptr+92>:  ldw 0(,r21),r20
     0x41263104 <_dl_make_fptr+96>:  cmpib,<> 0,r20,0x41263150 <_dl_make_fptr+172>
     0x41263108 <_dl_make_fptr+100>: copy r21,r3
     0x4126310c <_dl_make_fptr+104>: copy r21,r6
     0x41263110 <_dl_make_fptr+108>: addil 0,r19,%r1
     0x41263114 <_dl_make_fptr+112>: ldw 5dc(,r1),r5
     0x41263118 <_dl_make_fptr+116>: ldw 24(,r8),r20
     0x4126311c <_dl_make_fptr+120>: copy r19,r4
     0x41263120 <_dl_make_fptr+124>: copy r10,r26
     0x41263124 <_dl_make_fptr+128>: b,l 0x41262fc4 <make_fdesc>,rp
     0x41263128 <_dl_make_fptr+132>: ldw 4(,r20),r25
     0x4126312c <_dl_make_fptr+136>: ldw 0(,r3),r20
     0x41263130 <_dl_make_fptr+140>: cmpib,= 0,r20,0x4126317c <_dl_make_fptr+216>
     0x41263134 <_dl_make_fptr+144>: copy r4,r19
     0x41263138 <_dl_make_fptr+148>: ldw 4(,r5),r20
     0x4126313c <_dl_make_fptr+152>: stw r20,0(,ret0)
     0x41263140 <_dl_make_fptr+156>: stw ret0,4(,r5)
     0x41263144 <_dl_make_fptr+160>: ldw 0(,r6),r20
     0x41263148 <_dl_make_fptr+164>: cmpib,=,n 0,r20,0x4126311c <_dl_make_fptr+120>
     0x4126314c <_dl_make_fptr+168>: ldw 24(,r8),r20
     0x41263150 <_dl_make_fptr+172>: ldw r7(,r9),ret0
     0x41263154 <_dl_make_fptr+176>: ldw -94(,sp),rp
     0x41263158 <_dl_make_fptr+180>: ldw -7c(,sp),r9
     0x4126315c <_dl_make_fptr+184>: ldw -78(,sp),r8
     0x41263160 <_dl_make_fptr+188>: ldw -74(,sp),r7
     0x41263164 <_dl_make_fptr+192>: ldw -70(,sp),r6
     0x41263168 <_dl_make_fptr+196>: ldw -6c(,sp),r5
     0x4126316c <_dl_make_fptr+200>: ldw -68(,sp),r4
     0x41263170 <_dl_make_fptr+204>: ldw -64(,sp),r3
     0x41263174 <_dl_make_fptr+208>: bv r0(rp)
     0x41263178 <_dl_make_fptr+212>: ldw,mb -80(,sp),r10
     0x4126317c <_dl_make_fptr+216>: b,l 0x41263150 <_dl_make_fptr+172>,r0
     0x41263180 <_dl_make_fptr+220>: stw ret0,0(,r3)
     0x41263184 <_dl_make_fptr+224>: addil 0,r19,%r1
     0x41263188 <_dl_make_fptr+228>: ldi 0,r26
     0x4126318c <_dl_make_fptr+232>: ldw 5e4(,r1),r1
     0x41263190 <_dl_make_fptr+236>: copy r1,r23
     0x41263194 <_dl_make_fptr+240>: ldi 0,r25
     0x41263198 <_dl_make_fptr+244>: b,l 0x4125e4f8 <_dl_signal_error>,rp
     0x4126319c <_dl_make_fptr+248>: ldi 0,r24
     0x412631a0 <_dl_make_fptr+252>: ldw 2c(,r26),r21		<==== map->l_mach.fptr_table()
     0x412631a4 <_dl_make_fptr+256>: ldw 30(,r26),r20
     0x412631a8 <_dl_make_fptr+260>: addil 0,r19,%r1
     0x412631ac <_dl_make_fptr+264>: copy r19,r4
     0x412631b0 <_dl_make_fptr+268>: ldw 4(,r20),r22
     0x412631b4 <_dl_make_fptr+272>: ldw 4(,r21),r26
     0x412631b8 <_dl_make_fptr+276>: ldi 3,r24
     0x412631bc <_dl_make_fptr+280>: ldi 12,r23
     0x412631c0 <_dl_make_fptr+284>: ldw 44(,r8),r21
     0x412631c4 <_dl_make_fptr+288>: sub r26,r22,r26
     0x412631c8 <_dl_make_fptr+292>: ldw 654(,r1),r1
     0x412631cc <_dl_make_fptr+296>: ldw 4(,r21),r25
     0x412631d0 <_dl_make_fptr+300>: ldw 4(,r1),r20
     0x412631d4 <_dl_make_fptr+304>: ldi -1,r21
     0x412631d8 <_dl_make_fptr+308>: b,l 0x41265570 <$$divU>,r31
     0x412631dc <_dl_make_fptr+312>: sub r0,r20,r22
     0x412631e0 <_dl_make_fptr+316>: stw r21,-34(,sp)
     0x412631e4 <_dl_make_fptr+320>: ldi 0,r26
     0x412631e8 <_dl_make_fptr+324>: depw,z ret1,29,30,r5
     0x412631ec <_dl_make_fptr+328>: stw r0,-38(,sp)
     0x412631f0 <_dl_make_fptr+332>: copy ret1,r6
     0x412631f4 <_dl_make_fptr+336>: add,l r5,r20,r20
     0x412631f8 <_dl_make_fptr+340>: add,l r20,r21,r20
     0x412631fc <_dl_make_fptr+344>: and r20,r22,r20
     0x41263200 <_dl_make_fptr+348>: b,l 0x412641bc <__mmap>,rp
     0x41263204 <_dl_make_fptr+352>: copy r20,r25
     0x41263208 <_dl_make_fptr+356>: copy r4,r19
     0x4126320c <_dl_make_fptr+360>: cmpib,= -1,ret0,0x4126323c <_dl_make_fptr+408>
     0x41263210 <_dl_make_fptr+364>: copy ret0,r26
     0x41263214 <_dl_make_fptr+368>: ldw 1fc(,r8),r20
     0x41263218 <_dl_make_fptr+372>: cmpib,<>,n 0,r20,0x4126322c <_dl_make_fptr+392>
     0x4126321c <_dl_make_fptr+376>: stw ret0,1fc(,r8)
     0x41263220 <_dl_make_fptr+380>: stw r6,1f8(,r8)
     0x41263224 <_dl_make_fptr+384>: b,l 0x412630e0 <_dl_make_fptr+60>,r0
     0x41263228 <_dl_make_fptr+388>: ldw 1fc(,r8),r7	<==== return map->l_mach.fptr_table;
     0x4126322c <_dl_make_fptr+392>: b,l 0x4126421c <munmap>,rp
     0x41263230 <_dl_make_fptr+396>: copy r5,r25
     0x41263234 <_dl_make_fptr+400>: b,l 0x41263224 <_dl_make_fptr+384>,r0
     0x41263238 <_dl_make_fptr+404>: copy r4,r19
     0x4126323c <_dl_make_fptr+408>: addil 0,r4,%r1
     0x41263240 <_dl_make_fptr+412>: copy r1,r20
     0x41263244 <_dl_make_fptr+416>: ldw 62c(,r20),r20
     0x41263248 <_dl_make_fptr+420>: ldw 0(,r20),r26
     0x4126324c <_dl_make_fptr+424>: addil 0,r4,%r1
     0x41263250 <_dl_make_fptr+428>: ldw 5e8(,r1),r21
     0x41263254 <_dl_make_fptr+432>: b,l 0x41263194 <_dl_make_fptr+240>,r0
     0x41263258 <_dl_make_fptr+436>: copy r21,r23
  [...]

and for gcc-3.4:
Dump of assembler code from 0x4128571c to 0x4128581c:
     0x4128571c <_dl_make_fptr+76>:  ldw 1fc(,r26),r6	<====[2]
     0x41285720 <_dl_make_fptr+80>:  cmpib,= 0,r6,0x412858f4 <_dl_make_fptr+548>	<===='call' make_fptr_table()
     0x41285724 <_dl_make_fptr+84>:  copy r25,r3
     0x41285728 <_dl_make_fptr+88>:  ldw 1f8(,r26),ret1
     0x4128572c <_dl_make_fptr+92>:  ldw 30(,r10),r21
     0x41285730 <_dl_make_fptr+96>:  ldw 4(,r21),r20
     0x41285734 <_dl_make_fptr+100>: sub r3,r20,r20
     0x41285738 <_dl_make_fptr+104>: extrw,s r20,27,28,r7
     0x4128573c <_dl_make_fptr+108>: cmpb,>>=,n r7,ret1,0x412859d0 <_dl_make_fptr+768>
     0x41285740 <_dl_make_fptr+112>: ldw,s r7(,r6),ret0
     0x41285744 <_dl_make_fptr+116>: cmpib,<> 0,ret0,0x412857c8 <_dl_make_fptr+248>
     0x41285748 <_dl_make_fptr+120>: addil 0,r19,%r1
     0x4128574c <_dl_make_fptr+124>: depw,z r7,29,30,r11
     0x41285750 <_dl_make_fptr+128>: ldw 638(,r1),r13
     0x41285754 <_dl_make_fptr+132>: addil 0,r19,%r1
     0x41285758 <_dl_make_fptr+136>: ldw 5c0(,r1),r5
     0x4128575c <_dl_make_fptr+140>: addil 0,r19,%r1
     0x41285760 <_dl_make_fptr+144>: ldo -78(sp),r14
     0x41285764 <_dl_make_fptr+148>: ldw 610(,r1),r16
     0x41285768 <_dl_make_fptr+152>: add,l r11,r6,r15
     0x4128576c <_dl_make_fptr+156>: copy r5,r9
     0x41285770 <_dl_make_fptr+160>: ldw 24(,r10),r20
     0x41285774 <_dl_make_fptr+164>: ldw 4(,r20),r8
     0x41285778 <_dl_make_fptr+168>: ldw 0(,r5),r3
     0x4128577c <_dl_make_fptr+172>: ldw 4(,r3),r23
     0x41285780 <_dl_make_fptr+176>: ldw 8(,r3),r20
     0x41285784 <_dl_make_fptr+180>: cmpb,>>= r20,r23,0x4128580c <_dl_make_fptr+316>
     0x41285788 <_dl_make_fptr+184>: ldo 1(r20),r22
     0x4128578c <_dl_make_fptr+188>: ldw 8(,r3),r21
     0x41285790 <_dl_make_fptr+192>: cmpb,<> r20,r21,0x41285780 <_dl_make_fptr+176>
     0x41285794 <_dl_make_fptr+196>: shladd,l r21,3,r3,r20
     0x41285798 <_dl_make_fptr+200>: stw r22,8(,r3)
     0x4128579c <_dl_make_fptr+204>: ldo c(r20),r26
     0x412857a0 <_dl_make_fptr+208>: stw r8,4(,r26)
     0x412857a4 <_dl_make_fptr+212>: stw r12,0(,r26)
     0x412857a8 <_dl_make_fptr+216>: ldw r11(,r6),r20
     0x412857ac <_dl_make_fptr+220>: cmpib,=,n 0,r20,0x412858a8 <_dl_make_fptr+472>
     0x412857b0 <_dl_make_fptr+224>: ldw 4(,r9),r20
     0x412857b4 <_dl_make_fptr+228>: stw r20,0(,r26)
     0x412857b8 <_dl_make_fptr+232>: stw r26,4(,r9)
     0x412857bc <_dl_make_fptr+236>: ldw,s r7(,r6),ret0
     0x412857c0 <_dl_make_fptr+240>: cmpib,=,n 0,ret0,0x41285774 <_dl_make_fptr+164>
     0x412857c4 <_dl_make_fptr+244>: ldw 24(,r10),r20
     0x412857c8 <_dl_make_fptr+248>: ldw -94(,sp),rp
     0x412857cc <_dl_make_fptr+252>: ldw -74(,sp),r16
     0x412857d0 <_dl_make_fptr+256>: ldw -70(,sp),r15
     0x412857d4 <_dl_make_fptr+260>: ldw -6c(,sp),r14
     0x412857d8 <_dl_make_fptr+264>: ldw -68(,sp),r13
     0x412857dc <_dl_make_fptr+268>: ldw -64(,sp),r12
     0x412857e0 <_dl_make_fptr+272>: ldw -60(,sp),r11
     0x412857e4 <_dl_make_fptr+276>: ldw -5c(,sp),r10
     0x412857e8 <_dl_make_fptr+280>: ldw -58(,sp),r9
     0x412857ec <_dl_make_fptr+284>: ldw -54(,sp),r8
     0x412857f0 <_dl_make_fptr+288>: ldw -50(,sp),r7
     0x412857f4 <_dl_make_fptr+292>: ldw -4c(,sp),r6
     0x412857f8 <_dl_make_fptr+296>: ldw -48(,sp),r5
     0x412857fc <_dl_make_fptr+300>: ldw -44(,sp),r4
     0x41285800 <_dl_make_fptr+304>: ldw -40(,sp),r3
     0x41285804 <_dl_make_fptr+308>: bv r0(rp)
     0x41285808 <_dl_make_fptr+312>: ldo -80(sp),sp
     0x4128580c <_dl_make_fptr+316>: ldw 4(,r5),r20
     0x41285810 <_dl_make_fptr+320>: cmpib,<>,n 0,r20,0x41285984 <_dl_make_fptr+692>
     0x41285814 <_dl_make_fptr+324>: ldw 8(,r5),r21
     0x41285818 <_dl_make_fptr+328>: depw,z r21,30,31,r20

Dump of assembler code from 0x412858f4 to 0x412859f4:
     0x412858f4 <_dl_make_fptr+548>: ldw 30(,r26),r20	<==== map->l_mach.fptr_table()
     0x412858f8 <_dl_make_fptr+552>: ldw 4(,r20),r21
     0x412858fc <_dl_make_fptr+556>: addil 0,r19,%r1
     0x41285900 <_dl_make_fptr+560>: copy r1,r22
     0x41285904 <_dl_make_fptr+564>: ldw 2c(,r26),r20
     0x41285908 <_dl_make_fptr+568>: ldw 4(,r20),r26
     0x4128590c <_dl_make_fptr+572>: sub r26,r21,r26
     0x41285910 <_dl_make_fptr+576>: ldw 44(,r10),r20
     0x41285914 <_dl_make_fptr+580>: ldw 4(,r20),r25
     0x41285918 <_dl_make_fptr+584>: b,l 0x41287d60 <$$divU>,r31
     0x4128591c <_dl_make_fptr+588>: copy r19,r4
     0x41285920 <_dl_make_fptr+592>: ldi -1,r20
     0x41285924 <_dl_make_fptr+596>: stw r20,-34(,sp)
     0x41285928 <_dl_make_fptr+600>: ldi 0,r26
     0x4128592c <_dl_make_fptr+604>: ldw 638(,r22),r20
     0x41285930 <_dl_make_fptr+608>: ldw 4(,r20),r25
     0x41285934 <_dl_make_fptr+612>: depw,z ret1,29,30,r5
     0x41285938 <_dl_make_fptr+616>: ldi 3,r24
     0x4128593c <_dl_make_fptr+620>: sub r0,r25,r20
     0x41285940 <_dl_make_fptr+624>: copy ret1,r6
     0x41285944 <_dl_make_fptr+628>: stw r0,-38(,sp)
     0x41285948 <_dl_make_fptr+632>: add,l r5,r25,r25
     0x4128594c <_dl_make_fptr+636>: ldi 12,r23
     0x41285950 <_dl_make_fptr+640>: ldo -1(r25),r25
     0x41285954 <_dl_make_fptr+644>: b,l 0x412869a8 <__mmap>,rp
     0x41285958 <_dl_make_fptr+648>: and r25,r20,r25
     0x4128595c <_dl_make_fptr+652>: copy r4,r19
     0x41285960 <_dl_make_fptr+656>: cmpib,= -1,ret0,0x412859e0 <_dl_make_fptr+784>
     0x41285964 <_dl_make_fptr+660>: copy ret0,r26
     0x41285968 <_dl_make_fptr+664>: ldw 1fc(,r10),r20
     0x4128596c <_dl_make_fptr+668>: cmpib,<>,n 0,r20,0x412859a0 <_dl_make_fptr+720>
     0x41285970 <_dl_make_fptr+672>: copy r6,ret1
     0x41285974 <_dl_make_fptr+676>: stw r6,1f8(,r10)
     0x41285978 <_dl_make_fptr+680>: ldw 1fc(,r10),r6
     0x4128597c <_dl_make_fptr+684>: b,l 0x4128572c <_dl_make_fptr+92>,r0
     0x41285980 <_dl_make_fptr+688>: stw ret0,1fc(,r10)	<==== return map->l_mach.fptr_table;
     0x41285984 <_dl_make_fptr+692>: copy r20,r26
     0x41285988 <_dl_make_fptr+696>: ldw 0(,r20),r20
     0x4128598c <_dl_make_fptr+700>: b,l 0x412857a0 <_dl_make_fptr+208>,r0
     0x41285990 <_dl_make_fptr+704>: stw r20,4(,r5)
     0x41285994 <_dl_make_fptr+708>: stw ret0,0(,r5)
     0x41285998 <_dl_make_fptr+712>: b,l 0x412857a0 <_dl_make_fptr+208>,r0
     0x4128599c <_dl_make_fptr+716>: ldo c(ret0),r26
     0x412859a0 <_dl_make_fptr+720>: b,l 0x41286a04 <munmap>,rp
     0x412859a4 <_dl_make_fptr+724>: copy r5,r25
     0x412859a8 <_dl_make_fptr+728>: ldw 1f8(,r10),ret1
     0x412859ac <_dl_make_fptr+732>: ldw 1fc(,r10),r6
     0x412859b0 <_dl_make_fptr+736>: b,l 0x4128572c <_dl_make_fptr+92>,r0
     0x412859b4 <_dl_make_fptr+740>: copy r4,r19
     0x412859b8 <_dl_make_fptr+744>: addil 0,r4,%r1
     0x412859bc <_dl_make_fptr+748>: ldw 0(,r16),r26
     0x412859c0 <_dl_make_fptr+752>: ldw 5c4(,r1),r23
     0x412859c4 <_dl_make_fptr+756>: ldi 0,r25
     0x412859c8 <_dl_make_fptr+760>: b,l 0x41280f10 <_dl_signal_error>,rp
     0x412859cc <_dl_make_fptr+764>: ldi 0,r24
     0x412859d0 <_dl_make_fptr+768>: addil 0,r19,%r1
     0x412859d4 <_dl_make_fptr+772>: ldi 0,r26
     0x412859d8 <_dl_make_fptr+776>: b,l 0x412859c4 <_dl_make_fptr+756>,r0
     0x412859dc <_dl_make_fptr+780>: ldw 5c8(,r1),r23
     0x412859e0 <_dl_make_fptr+784>: addil 0,r4,%r1
     0x412859e4 <_dl_make_fptr+788>: ldw 610(,r1),r20
     0x412859e8 <_dl_make_fptr+792>: ldw 0(,r20),r26
     0x412859ec <_dl_make_fptr+796>: addil 0,r4,%r1
     0x412859f0 <_dl_make_fptr+800>: b,l 0x412859c4 <_dl_make_fptr+756>,r0
End of assembler dump.

I have to thought more on how to create a test case (all advise is always well come :) )

Joel
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On Mon, Sep 06, 2004 at 08:26:57PM +0000, Joel Soete wrote:
> "atime has not changed"
> 
> mmm may be that's logical:
> /dev/sda3		/		xfs		noatime		 
> 

Yes. That is the reason for the failure.

c.

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Joel,

> make[2]: *** [/space/jrso/parisc-linux/build/glibc/libio/tst-atime.out] 

This is new. Could you see why this is failing?

> make[2]: *** [/space/jrso/parisc-linux/build/glibc/posix/tst-waitid.out] 

This is a new one I'm working to fix.

c.

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Carlos O'Donell wrote:
> Joel,
> 
> 
>>make[2]: *** [/space/jrso/parisc-linux/build/glibc/libio/tst-atime.out] 
> 
> 
> This is new. Could you see why this is failing?
> 
"atime has not changed"

mmm may be that's logical:
/dev/sda3		/		xfs		noatime			

hth,
	Joel
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Hello.

Can anybody confirm this? It happens after reboot nearly every time, but 
also after some time using this fs. The result is different from time to 
time, sometimes kernel crashes with some backtrace (unfortunately I 
don't have xfs anymore, and it would be difficult to get one now, since 
I've moved back to ext2 already), sometimes it oopses with message 
saying the filesystem is not xfs after reboot. After repairing with 
xfs_repair most of the filesystem lands in lost+found and the filesystem 
is generally not usable anymore. I thought it's sync-related, but I'm 
not sure now, sync; sync; sync; reboot commands does not solve the problem.

I'll try to make some unimportatnt "partition" later, and send you more 
detailed report.

Regards,
BO
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Xref: news.gmane.org gmane.linux.ports.parisc:21955

This has been on my todo list for sometime -- the parisc kernel
currently uses a one-byte-at-a-time implementation for
copy_{to,from,in}_user. Obviously there is much room for improvement.
Here's an attempt at a more optimal version.

There is a somewhat lengthy comment below in memcpy.c about how this
works, so I will not repeat that here. This seems to work ok for me for
64-bit-smp. Test reports on other systems and different workloads are
welcome (but see the warning below). 

Unfortunately this doesn't speed up as many things as I thought it
would. There are quite a bit of userspace copying that go through
copy_user_page(), which already uses an unrolled register copy loop. I
suspect this implementation is still slightly faster than that, so
possibly that can be slightly optimized as well. You will see the most
improvement in pipe or local socket intensive workloads. On the a500
that i tested on, this improved bw_pipe and bw_unix (from lmbench)
results about 400%. But for e.g. ftp or make vmlinux there was no
measureable performance difference.

I am still doing some verifications on the error handling, so there is a
chance that this patch will corrupt your data. Use with care! With that
cavaet, suggestions for further optimizations and improvements are much
appreciated!!

Many thanks to Grant and Carlos for looking over and helping me spot
some problems in my earlier attempts.

randolph



Index: arch/parisc/lib/Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/lib/Makefile,v
retrieving revision 1.2
diff -u -p -r1.2 Makefile
--- arch/parisc/lib/Makefile	1 Jul 2004 18:30:36 -0000	1.2
+++ arch/parisc/lib/Makefile	9 Sep 2004 23:51:35 -0000
@@ -2,6 +2,6 @@
 # Makefile for parisc-specific library files
 #
 
-lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o
+lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o memcpy.o
 
 lib-$(CONFIG_SMP) += debuglocks.o
Index: arch/parisc/lib/memcpy.c
===================================================================
RCS file: arch/parisc/lib/memcpy.c
diff -N arch/parisc/lib/memcpy.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ arch/parisc/lib/memcpy.c	9 Sep 2004 23:51:35 -0000
@@ -0,0 +1,457 @@
+/*
+ *    Optimized memory copy routines.
+ *
+ *    Copyright (C) 2004 Randolph Chung <tausq@debian.org>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2, or (at your option)
+ *    any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *    Portions derived from the GNU C Library
+ *    Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc.
+ *
+ * Several strategies are tried to try to get the best performance for various
+ * conditions. In the optimal case, we copy 64-bytes in an unrolled loop using 
+ * fp regs. This is followed by loops that copy 32- or 16-bytes at a time using
+ * general registers.  Unaligned copies are handled either by aligning the 
+ * destination and then using shift-and-write method, or in a few cases by 
+ * falling back to a byte-at-a-time copy.
+ *
+ * I chose to implement this in C because it is easier to maintain and debug,
+ * and in my experiments it appears that the C code generated by gcc (3.3/3.4
+ * at the time of writing) is fairly optimal. Unfortunately some of the 
+ * semantics of the copy routine (exception handling) is difficult to express
+ * in C, so we have to play some tricks to get it to work.
+ *
+ * All the loads and stores are done via explicit asm() code in order to use
+ * the right space registers. 
+ * 
+ * Testing with various alignments and buffer sizes shows that this code is 
+ * often >10x faster than a simple byte-at-a-time copy, even for strangely
+ * aligned operands. It is interesting to note that the glibc version
+ * of memcpy (written in C) is actually quite fast already. This routine is 
+ * able to beat it by 30-40% for aligned copies because of the loop unrolling, 
+ * but in some cases the glibc version is still slightly faster. This lends 
+ * more credibility that gcc can generate very good code as long as we are 
+ * careful.
+ */
+
+#ifdef __KERNEL__
+#include <linux/config.h>
+#include <linux/compiler.h>
+#include <asm/uaccess.h>
+#define s_space "%%sr1"
+#define d_space "%%sr2"
+#else
+#define likely(x)	__builtin_expect(!!(x), 1)
+#define unlikely(x)	__builtin_expect(!!(x), 0)
+#define inline		__inline__ __attribute__((always_inline))
+#define s_space "%%sr0"
+#define d_space "%%sr0"
+#define pa_memcpy new2_copy
+#define L1_CACHE_BYTES 64
+#endif
+
+#define preserve_branch(label)	do {					\
+	volatile int dummy;						\
+	/* The following branch is never taken, it's just here to  */	\
+	/* prevent gcc from optimizing away our exception code. */ 	\
+	if (unlikely(dummy != dummy))					\
+		goto label;						\
+} while (0)
+
+#define get_user_space() (segment_eq(get_fs(), KERNEL_DS) ? 0 : mfsp(3))
+
+#define MERGE(w0, sh_1, w1, sh_2) (((w0) << (sh_1)) | ((w1) >> (sh_2)))
+#define THRESHOLD	16
+
+#ifndef __LP64__
+#define EXC_WORD ".word"
+#else
+#define EXC_WORD ".dword"
+#endif
+
+#define def_load_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e)	\
+	__asm__ __volatile__ (				\
+	"1:\t" #_insn ",ma " #_sz "(" _s ",%1), %0\n" 	\
+	"\t.section __ex_table,\"aw\"\n"		\
+	"\t" EXC_WORD "\t1b\n"				\
+	"\t" EXC_WORD "\t(" #_e "-1b)\n"		\
+	"\t.previous\n"					\
+	: "=" #_tt(_t), "+r"(_a)			\
+	: "1"(_a)					\
+	: "r8")
+
+#define def_store_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e) 	\
+	__asm__ __volatile__ (				\
+	"1:\t" #_insn ",ma %1, " #_sz "(" _s ",%0)\n" 	\
+	"\t.section __ex_table,\"aw\"\n"		\
+	"\t" EXC_WORD "\t1b\n"				\
+	"\t" EXC_WORD "\t(" #_e "-1b)\n"		\
+	"\t.previous\n"					\
+	: "+r"(_a) 					\
+	: #_tt(_t), "0"(_a)				\
+	: "r8")
+
+#define ldbma(_s, _a, _t, _e) def_load_ai_insn(ldbs,1,r,_s,_a,_t,_e)
+#define stbma(_s, _t, _a, _e) def_store_ai_insn(stbs,1,r,_s,_a,_t,_e)
+#define ldwma(_s, _a, _t, _e) def_load_ai_insn(ldw,4,r,_s,_a,_t,_e)
+#define stwma(_s, _t, _a, _e) def_store_ai_insn(stw,4,r,_s,_a,_t,_e)
+#define flddma(_s, _a, _t, _e) def_load_ai_insn(fldd,8,f,_s,_a,_t,_e)
+#define fstdma(_s, _t, _a, _e) def_store_ai_insn(fstd,8,f,_s,_a,_t,_e)
+
+#define ldw(_s,_o,_a,_t,_e) 				\
+	__asm__ __volatile__ (				\
+	"1:\tldw " #_o "(" _s ",%1), %0\n"		\
+	"\t.section __ex_table,\"aw\"\n"		\
+	"\t" EXC_WORD "\t1b\n"				\
+	"\t" EXC_WORD "\t(" #_e "-1b)\n"		\
+	"\t.previous\n"					\
+	: "=r"(_t) 					\
+	: "r"(_a)					\
+	: "r8")
+
+#define stw(_s,_t,_o,_a,_e) 				\
+	__asm__ __volatile__ (				\
+	"1:\tstw %0, " #_o "(" _s ",%1)\n" 		\
+	"\t.section __ex_table,\"aw\"\n"		\
+	"\t.dword\t1b\n"				\
+	"\t.dword\t(" #_e "-1b)\n"			\
+	"\t.previous\n"					\
+	: 						\
+	: "r"(_t), "r"(_a)				\
+	: "r8")
+
+#ifdef  CONFIG_PREFETCH
+extern inline void prefetch_src(const void *addr)
+{
+	__asm__("ldw 0(" s_space ",%0), %%r0" : : "r" (addr));
+}
+
+extern inline void prefetch_dst(const void *addr)
+{
+	__asm__("ldd 0(" d_space ",%0), %%r0" : : "r" (addr));
+}
+#else
+#define prefetch_src(addr)
+#define prefetch_dst(addr)
+#endif
+
+/* Copy from a not-aligned src to an aligned dst, using shifts. Handles 4 words
+ * per loop.  This code is derived from glibc. 
+ */
+static inline unsigned long copy_dstaligned(unsigned long dst, unsigned long src, unsigned long len)
+{
+	/* gcc complains that a2 and a3 may be uninitialized, but actually
+	 * they cannot be.  Initialize a2/a3 to shut gcc up.
+	 */
+	register unsigned int a0, a1, a2 = 0, a3 = 0;
+	int sh_1, sh_2;
+
+	/* prefetch_src((const void *)src); */
+
+	/* Calculate how to shift a word read at the memory operation
+	   aligned srcp to make it aligned for copy.  */
+	sh_1 = 8 * (src % sizeof(unsigned int));
+	sh_2 = 8 * sizeof(unsigned int) - sh_1;
+
+	/* Make src aligned by rounding it down.  */
+	src &= -sizeof(unsigned int);
+
+	switch (len % 4)
+	{
+		case 2:
+			/* a1 = ((unsigned int *) src)[0];
+			   a2 = ((unsigned int *) src)[1]; */
+			ldw(s_space, 0, src, a1, copy_dstaligned_exc);
+			ldw(s_space, 4, src, a2, copy_dstaligned_exc);
+			src -= 1 * sizeof(unsigned int);
+			dst -= 3 * sizeof(unsigned int);
+			len += 2;
+			goto do1;
+		case 3:
+			/* a0 = ((unsigned int *) src)[0];
+			   a1 = ((unsigned int *) src)[1]; */
+			ldw(s_space, 0, src, a0, copy_dstaligned_exc);
+			ldw(s_space, 4, src, a1, copy_dstaligned_exc);
+			src -= 0 * sizeof(unsigned int);
+			dst -= 2 * sizeof(unsigned int);
+			len += 1;
+			goto do2;
+		case 0:
+			if (len == 0)
+				return 0;
+			/* a3 = ((unsigned int *) src)[0];
+			   a0 = ((unsigned int *) src)[1]; */
+			ldw(s_space, 0, src, a3, copy_dstaligned_exc);
+			ldw(s_space, 4, src, a0, copy_dstaligned_exc);
+			src -=-1 * sizeof(unsigned int);
+			dst -= 1 * sizeof(unsigned int);
+			len += 0;
+			goto do3;
+		case 1:
+			/* a2 = ((unsigned int *) src)[0];
+			   a3 = ((unsigned int *) src)[1]; */
+			ldw(s_space, 0, src, a2, copy_dstaligned_exc);
+			ldw(s_space, 4, src, a3, copy_dstaligned_exc);
+			src -=-2 * sizeof(unsigned int);
+			dst -= 0 * sizeof(unsigned int);
+			len -= 1;
+			if (len == 0)
+				goto do0;
+			goto do4;			/* No-op.  */
+	}
+
+	do
+	{
+		/* prefetch_src((const void *)(src + 4 * sizeof(unsigned int))); */
+do4:
+		/* a0 = ((unsigned int *) src)[0]; */
+		ldw(s_space, 0, src, a0, copy_dstaligned_exc);
+		/* ((unsigned int *) dst)[0] = MERGE (a2, sh_1, a3, sh_2); */
+		stw(d_space, MERGE (a2, sh_1, a3, sh_2), 0, dst, copy_dstaligned_exc);
+do3:
+		/* a1 = ((unsigned int *) src)[1]; */
+		ldw(s_space, 4, src, a1, copy_dstaligned_exc);
+		/* ((unsigned int *) dst)[1] = MERGE (a3, sh_1, a0, sh_2); */
+		stw(d_space, MERGE (a3, sh_1, a0, sh_2), 4, dst, copy_dstaligned_exc);
+do2:
+		/* a2 = ((unsigned int *) src)[2]; */
+		ldw(s_space, 8, src, a2, copy_dstaligned_exc);
+		/* ((unsigned int *) dst)[2] = MERGE (a0, sh_1, a1, sh_2); */
+		stw(d_space, MERGE (a0, sh_1, a1, sh_2), 8, dst, copy_dstaligned_exc);
+do1:
+		/* a3 = ((unsigned int *) src)[3]; */
+		ldw(s_space, 12, src, a3, copy_dstaligned_exc);
+		/* ((unsigned int *) dst)[3] = MERGE (a1, sh_1, a2, sh_2); */
+		stw(d_space, MERGE (a1, sh_1, a2, sh_2), 12, dst, copy_dstaligned_exc);
+
+		src += 4 * sizeof(unsigned int);
+		dst += 4 * sizeof(unsigned int);
+		len -= 4;
+	}
+	while (len != 0);
+
+do0:
+	/* ((unsigned int *) dst)[0] = MERGE (a2, sh_1, a3, sh_2); */
+	stw(d_space, MERGE (a2, sh_1, a3, sh_2), 0, dst, copy_dstaligned_exc);
+
+	preserve_branch(handle_error);
+
+	return 0;
+
+handle_error:
+	__asm__ __volatile__ ("copy_dstaligned_exc:\n");
+	printk("copy_dstaligned_exc! returning with %lu\n", len * 4);
+	return len * 4;
+}
+
+
+/* Returns 0 for success, otherwise, returns number of bytes not transferred. */
+unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+{
+	register unsigned long src, dst, t1, t2, t3;
+	register char *pcs, *pcd;
+	register unsigned int *pws, *pwd;
+	register double *pds, *pdd;
+	unsigned long ret = 0;
+	
+	src = (unsigned long)srcp;
+	dst = (unsigned long)dstp;
+	pcs = (unsigned char *)srcp;
+	pcd = (unsigned char *)dstp;
+
+	/* prefetch_src((const void *)srcp); */
+
+	if (unlikely(len == 0))
+		return 0;
+
+	/* Check alignment */
+	t1 = (src ^ dst);
+	if (unlikely(t1 & (sizeof(double)-1)))
+		goto unaligned_copy;
+
+	/* src and dst have same alignment. */
+
+	/* Copy bytes till we are double-aligned. */
+	t2 = src & (sizeof(double) - 1);
+	if (unlikely(t2 != 0)) {
+		t2 = sizeof(double) - t2;
+		while (t2 && len) {
+			/* *pcd++ = *pcs++; */
+			ldbma(s_space, pcs, t3, pa_memcpy_exc);
+			len--;
+			stbma(d_space, t3, pcd, pa_memcpy_exc);
+			t2--;
+		}
+	}
+
+	pds = (double *)pcs;
+	pdd = (double *)pcd;
+
+	/* Copy 8 doubles at a time */
+	while (len >= 8*sizeof(double)) {
+		register double r1, r2, r3, r4, r5, r6, r7, r8;
+		/* prefetch_src((char *)pds + L1_CACHE_BYTES); */
+		flddma(s_space, pds, r1, pa_memcpy_exc);
+		flddma(s_space, pds, r2, pa_memcpy_exc);
+		flddma(s_space, pds, r3, pa_memcpy_exc);
+		flddma(s_space, pds, r4, pa_memcpy_exc);
+		fstdma(d_space, r1, pdd, pa_memcpy_exc);
+		fstdma(d_space, r2, pdd, pa_memcpy_exc);
+		fstdma(d_space, r3, pdd, pa_memcpy_exc);
+		fstdma(d_space, r4, pdd, pa_memcpy_exc);
+
+#if 0
+		if (L1_CACHE_BYTES <= 32)
+			prefetch_src((char *)pds + L1_CACHE_BYTES);
+#endif
+		flddma(s_space, pds, r5, pa_memcpy_exc);
+		flddma(s_space, pds, r6, pa_memcpy_exc);
+		flddma(s_space, pds, r7, pa_memcpy_exc);
+		flddma(s_space, pds, r8, pa_memcpy_exc);
+		fstdma(d_space, r5, pdd, pa_memcpy_exc);
+		fstdma(d_space, r6, pdd, pa_memcpy_exc);
+		fstdma(d_space, r7, pdd, pa_memcpy_exc);
+		fstdma(d_space, r8, pdd, pa_memcpy_exc);
+		len -= 8*sizeof(double);
+	}
+
+	pws = (unsigned int *)pds;
+	pwd = (unsigned int *)pdd;
+
+word_copy:
+	while (len >= 8*sizeof(unsigned int)) {
+		register unsigned int r1,r2,r3,r4,r5,r6,r7,r8;
+		/* prefetch_src((char *)pws + L1_CACHE_BYTES); */
+		ldwma(s_space, pws, r1, pa_memcpy_exc);
+		ldwma(s_space, pws, r2, pa_memcpy_exc);
+		ldwma(s_space, pws, r3, pa_memcpy_exc);
+		ldwma(s_space, pws, r4, pa_memcpy_exc);
+		stwma(d_space, r1, pwd, pa_memcpy_exc);
+		stwma(d_space, r2, pwd, pa_memcpy_exc);
+		stwma(d_space, r3, pwd, pa_memcpy_exc);
+		stwma(d_space, r4, pwd, pa_memcpy_exc);
+
+		ldwma(s_space, pws, r5, pa_memcpy_exc);
+		ldwma(s_space, pws, r6, pa_memcpy_exc);
+		ldwma(s_space, pws, r7, pa_memcpy_exc);
+		ldwma(s_space, pws, r8, pa_memcpy_exc);
+		stwma(d_space, r5, pwd, pa_memcpy_exc);
+		stwma(d_space, r6, pwd, pa_memcpy_exc);
+		stwma(d_space, r7, pwd, pa_memcpy_exc);
+		stwma(d_space, r8, pwd, pa_memcpy_exc);
+		len -= 8*sizeof(unsigned int);
+	}
+
+	while (len >= 4*sizeof(unsigned int)) {
+		register unsigned int r1,r2,r3,r4;
+		ldwma(s_space, pws, r1, pa_memcpy_exc);
+		ldwma(s_space, pws, r2, pa_memcpy_exc);
+		ldwma(s_space, pws, r3, pa_memcpy_exc);
+		ldwma(s_space, pws, r4, pa_memcpy_exc);
+		stwma(d_space, r1, pwd, pa_memcpy_exc);
+		stwma(d_space, r2, pwd, pa_memcpy_exc);
+		stwma(d_space, r3, pwd, pa_memcpy_exc);
+		stwma(d_space, r4, pwd, pa_memcpy_exc);
+		len -= 4*sizeof(unsigned int);
+	}
+
+	pcs = (unsigned char *)pws;
+	pcd = (unsigned char *)pwd;
+
+byte_copy:
+	while (len) {
+		/* *pcd++ = *pcs++; */
+		ldbma(s_space, pcs, t3, pa_memcpy_exc);
+		stbma(d_space, t3, pcd, pa_memcpy_exc);
+		len--;
+	}
+
+	return 0;
+
+unaligned_copy:
+	if (len < THRESHOLD)
+		goto byte_copy;
+
+	/* possibly we are aligned on a word, but not on a double... */
+	if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
+		t2 = src & (sizeof(unsigned int) - 1);
+
+		if (unlikely(t2 != 0)) {
+			t2 = sizeof(unsigned int) - t2;
+			while (t2) {
+				/* *pcd++ = *pcs++; */
+				ldbma(s_space, pcs, t3, pa_memcpy_exc);
+				stbma(d_space, t3, pcd, pa_memcpy_exc);
+				t2--;
+			}
+		}
+
+		pws = (unsigned int *)pcs;
+		pwd = (unsigned int *)pcd;
+		goto word_copy;
+	}
+
+	/* Align the destination.  */
+	if (unlikely((dst & (sizeof(unsigned int) - 1)) != 0)) {
+		t2 = sizeof(unsigned int) - (dst & (sizeof(unsigned int) - 1));
+		while (t2) {
+			/* *pcd++ = *pcs++; */
+			ldbma(s_space, pcs, t3, pa_memcpy_exc);
+			stbma(d_space, t3, pcd, pa_memcpy_exc);
+			len--;
+			t2--;
+		}
+		dst = (unsigned long)pcd;
+		src = (unsigned long)pcs;
+	}
+
+	ret = copy_dstaligned(dst, src, len / sizeof(unsigned int));
+	if (ret)
+		return ret;
+
+	pcs += (len & -sizeof(unsigned int));
+	pcd += (len & -sizeof(unsigned int));
+	len %= sizeof(unsigned int);
+
+	preserve_branch(handle_error);
+
+	goto byte_copy;
+
+handle_error:
+	__asm__ __volatile__ ("pa_memcpy_exc:\n");
+	printk("pa_memcpy_exc! returning with %lu\n", len + 1);
+	return len + 1;
+}
+
+unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len)
+{
+	mtsp(0, 1);
+	mtsp(get_user_space(), 2);
+	return pa_memcpy(dst, src, len);
+}
+
+unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len)
+{
+	mtsp(get_user_space(), 1);
+	mtsp(0, 2);
+	return pa_memcpy(dst, src, len);
+}
+
+unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len)
+{
+	mtsp(get_user_space(), 1);
+	mtsp(get_user_space(), 2);
+	return pa_memcpy(dst, src, len);
+}
Index: arch/parisc/Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/Makefile,v
retrieving revision 1.13
diff -u -p -r1.13 Makefile
--- arch/parisc/Makefile	8 Sep 2004 15:06:48 -0000	1.13
+++ arch/parisc/Makefile	9 Sep 2004 23:51:35 -0000
@@ -38,7 +38,7 @@ cflags-y	:= -pipe
 cflags-y	+= -mno-space-regs -mfast-indirect-calls
 
 # No fixed-point multiply
-cflags-y	+= -mdisable-fpregs
+#cflags-y	+= -mdisable-fpregs
 
 # Without this, "ld -r" results in .text sections that are too big
 # (> 0x40000) for branches to reach stubs.
Index: include/asm-parisc/uaccess.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/uaccess.h,v
retrieving revision 1.13
diff -u -p -r1.13 uaccess.h
--- include/asm-parisc/uaccess.h	4 Feb 2004 18:24:55 -0000	1.13
+++ include/asm-parisc/uaccess.h	9 Sep 2004 23:51:35 -0000
@@ -273,11 +273,11 @@ extern long lstrnlen_user(const char __u
 #define clear_user lclear_user
 #define __clear_user lclear_user
 
-#define copy_from_user lcopy_from_user
-#define __copy_from_user lcopy_from_user
-#define copy_to_user lcopy_to_user
-#define __copy_to_user lcopy_to_user
-#define copy_in_user lcopy_in_user
-#define __copy_in_user lcopy_in_user
+unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len);
+#define __copy_to_user copy_to_user
+unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len);
+#define __copy_from_user copy_from_user
+unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len);
+#define __copy_in_user copy_in_user
 
 #endif /* __PARISC_UACCESS_H */

-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Xref: news.gmane.org gmane.linux.ports.parisc:21956

In reference to a message from Randolph Chung, dated Sep 09:
> This has been on my todo list for sometime -- the parisc kernel
> currently uses a one-byte-at-a-time implementation for
> copy_{to,from,in}_user. Obviously there is much room for improvement.
> Here's an attempt at a more optimal version.

A few more addon questions/RFCs:

- this patch relies on using fp regs for copy operations. In our current
  kernel we actually have -mdisable-fpregs, but i was not able to
  ascertain why. we don't currently have fp lazy state saving. there's
  been some talk about doing this, but it requires some help from gcc.
  is this ok? 

- i have a test suite for testing the copy routine in userspace, so
  memcpy.c is written in a way to make it easily sharable between
  userspace and kernel. is that ok to include the userspace support code
  in the kernel?

- this is the first time the kernel has had to change sr2 in the kernel
  (thus Carlos' earlier patch to restore it in the syscall path).
  Arguably we should not do the sr2 save/restore in the syscall path and
  instead do it in the copy routines, in order to make syscall as fast
  as possible. Thoughts?

  Alternatively, if we play some tricks with the preprocessor we can get
  away with only using sr1, but having 3 copies of the copy routines in
  the code. I actually tried this, but found the hacks required to do it
  to be rather ugly.

- gcc gurus (Dave :) might think what I'm doing with exceptions to be
  too ugly^Wfragile. are there better ways to do it? :)

  this is a somewhat compelling reason to write the whole thing in
  assembly (which will also allow for a few more small optimizations).
  do you think the advantages of maintaining C code outweigh the
  slight performance penality and hacks required?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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> - this is the first time the kernel has had to change sr2 in the kernel
>   (thus Carlos' earlier patch to restore it in the syscall path).
>   Arguably we should not do the sr2 save/restore in the syscall path and
>   instead do it in the copy routines, in order to make syscall as fast
>   as possible. Thoughts?

In an optimal world:

- Syscalls must only copy sr7 (user space id) to sr3 (where the kernel expects
  user space id to live), and then set sr7 to kernel space id zero, when
  ready.

- Light weight syscalls clear sr2 so that users don't abuse security.

- syscall_restore should set sr7 to user space id and clear sr2 for
  syscalls (don't reload from TASK_PT).

- syscall_restore_rfi should store sr3 into sr7, and r0 into sr2 for
  restoration in restore_rfi.

- When starting a new process sr7 should be set to the processes space
  id, and sr2 should be cleared for making syscalls with.

a. No userspace code will be using scratch space registers because we
   don't support that. We will be clobbering sr2 for the user. If in 
   the future we decided to change the kernels space, we just clobber
   it to something else. As long as no userspace code is setting sr2
   and expecting it to stay set.

b. The kernel might use temp scratch registers, in which case the
   kernel can use sr1,sr2,sr5 and sr6, though for each sr we use as a
   temporary we have to incur the penalty of a save/restore during an
   interruption (I think that's right eh?).

c. On a schedule we should be saving only the state of those sr's that
   are used as temp and are important to the process?
        --- I need to review code here, I don't know what path is 
            taken during a context switch to save/restore state ---

>   Alternatively, if we play some tricks with the preprocessor we can get
>   away with only using sr1, but having 3 copies of the copy routines in
>   the code. I actually tried this, but found the hacks required to do it
>   to be rather ugly.

Difficult to maintain.
 
> - gcc gurus (Dave :) might think what I'm doing with exceptions to be
>   too ugly^Wfragile. are there better ways to do it? :)

GCC might break this if it gets smarter. Though I like the current
method of indicating volatility.

>   this is a somewhat compelling reason to write the whole thing in
>   assembly (which will also allow for a few more small optimizations).
>   do you think the advantages of maintaining C code outweigh the
>   slight performance penality and hacks required?

Perhaps. The C code is nice though, you could *almost* abstract it to
all architectures that have double,single word,byte load store insns :)

Thanks for this wicked work.

c.
 
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In reference to a message from John David Anglin, dated Sep 10:
> Have you looked at using stby or stdby for unaligned copies?

do you mean for the entire copy, or just to copy enough bytes to get it
aligned?

i've thought about it, for replacing the copy-till-aligned bits, but
haven't tried... i always get confused when i try to understand how
those insns work :)

randolph
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> In reference to a message from John David Anglin, dated Sep 10:
> > Have you looked at using stby or stdby for unaligned copies?
> 
> do you mean for the entire copy, or just to copy enough bytes to get it
> aligned?

I believe that the "b" completer can be used to write the first set
of bytes needed to get you to an alignment boundary.  The "e" completer
can be used to store the final residual.  The PA block move in GCC
uses the latter.  Basically, you use aligned loads and stby/stdby
to store the right set of bytes at the beginning and end.  It's much
more efficient than doing the beginning and end byte by byte.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Another SIGSEGV, this time in /bin/sh
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I had another SIGSEGV today building gcc on gsyprf11.

dave@gsyprf11:~/gcc-3.5/objdir$ gdb /bin/sh gcc/core.save.1
GNU gdb 2004-09-01-cvs
...
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/lib/debug/libncurses.so.5...done.
Loaded symbols for /usr/lib/debug/libncurses.so.5
Reading symbols from /usr/lib/debug/libdl.so.2...done.
Loaded symbols for /usr/lib/debug/libdl.so.2
Reading symbols from /usr/lib/debug/libc.so.6...done.
Loaded symbols for /usr/lib/debug/libc.so.6
Reading symbols from /lib/ld.so.1...done.
Loaded symbols for /lib/ld.so.1
#0  0xf7025554 in ?? ()

Looking at %r2, it appears that the fault has occurred in an indirect
call from __strtoll_internal:

(gdb) p/x $rp
$1 = 0x40785883
(gdb) disass 0x40785860 0x40785888
Dump of assembler code from 0x40785860 to 0x40785888:
0x40785860 <*__GI___strtoll_internal+2972>:     copy r19,r4
0x40785864 <*__GI___strtoll_internal+2976>:     b,l 0x4076c508 <__gconv_read_conf+916>,r31
0x40785868 <*__GI___strtoll_internal+2980>:     copy r31,rp
0x4078586c <*__GI___strtoll_internal+2984>:     b,l 0x40785848 <*__GI___strtoll_internal+2948>,r0
0x40785870 <*__GI___strtoll_internal+2988>:     copy r4,r19
0x40785874 <*__GI___strtoll_internal+2992>:     copy r19,r4
0x40785878 <*__GI___strtoll_internal+2996>:     b,l 0x4076c508 <__gconv_read_conf+916>,r31
0x4078587c <*__GI___strtoll_internal+3000>:     copy r31,rp

We appear to have reached 0x40785874 from the following code:

0x40784d40 <*__GI___strtoll_internal+124>:      ldi 24,r20
0x40784d44 <*__GI___strtoll_internal+128>:      cmpb,>= r20,r9,0x40784db8 <*__GI___strtoll_internal+244>
0x40784d48 <*__GI___strtoll_internal+132>:      addil 1000,r19,%r1
...
0x40784db8 <*__GI___strtoll_internal+244>:      ldw -124(,sp),r7
0x40784dbc <*__GI___strtoll_internal+248>:      ldi 20,r10
---Type <return> to continue, or q <return> to quit---
0x40784dc4 <*__GI___strtoll_internal+256>:      stw r7,-f0(,sp)
0x40784dc8 <*__GI___strtoll_internal+260>:      addil 1000,r19,%r1
0x40784dcc <*__GI___strtoll_internal+264>:      copy r3,r8
0x40784dd0 <*__GI___strtoll_internal+268>:      ldw 390(,r1),r6
0x40784dd4 <*__GI___strtoll_internal+272>:      ldw 98(,r3),r22
0x40784dd8 <*__GI___strtoll_internal+276>:      addil 1000,r19,%r1
0x40784ddc <*__GI___strtoll_internal+280>:      cmpib,<> 0,r22,0x40785874 <*__GI
I___strtoll_internal+2992>

The address for the indirect call, r22, was loaded as follows:
(gdb) p/x *($r3 + 0x98)
$20 = 0xf7025555

Some interesting registers:
(gdb) p/x $r10
$23 = 0x20
(gdb) p/x $r3
$13 = 0xe3c08
(gdb) p/x $r8
$16 = 0xe3c08
(gdb) p/x $r6
$18 = 0x408a1c8c
(gdb) p/x *($r19 + 0x1000 + 0x390)
$17 = 0x408a1c8c
(gdb) p/x $r7
$21 = 0xd65e8
(gdb) p/x *($sp - 0xf0)
$22 = 0xd65e8

This establishes how we got to the failure point.

It would appear that r3 has either been clobbered by the kernel, or there
is a problem with the memory access by which it was loaded:

(gdb) p/x *($r19 + 0x1000 + 0x354)
$12 = 0x408a98fc

This should have given the r3 value.  The same procedure gave the r6 value.

(gdb) p/x *(*($r19 + 0x1000 + 0x354) + 0x98)
$19 = 0x0

This is probably the value that r22 should have had.

The failure doesn't happen consistently as rerunning the script which failed
was successful.

Any thoughts?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] is this a known hppa64-linux-ld bug?
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i'm doing some experiments with code that contains:

.section .text.function, "ax"
....
1: stw %r19,(%sr3,%r20)
2: /* some other insn */
....

.section .fixup, "ax"
3: b,l 2b
.previous

.section __ex_table, "aw"
.dword 1b,3b
.previous

when this code is compiled and assembled, i can see in the disassembly
that the insn at "3:" contains a PCREL17F reloc against
.text.function+xxx which is pointing to the location of "2:". So far so
good...

But after linking with the rest of the kernel, the b,l address at "3:"
is wrong (it points to an address that is an offset from the __ex_table
section). 

not sure why this is happening, but it looks like a ld bug?

does anybody have a suggestion for a workaround? 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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> when this code is compiled and assembled, i can see in the disassembly
> that the insn at "3:" contains a PCREL17F reloc against

Not a PCREL22F?

> .text.function+xxx which is pointing to the location of "2:". So far so
> good...
> 
> But after linking with the rest of the kernel, the b,l address at "3:"
> is wrong (it points to an address that is an offset from the __ex_table
> section). 
> 
> not sure why this is happening, but it looks like a ld bug?

Does it point to a long branch stub?  I've had trouble with this
before when trying to use sibcalls.  There's only one stub table
and if you can't get there you're scuppered.  Since your branch is
in a different section from the target, you may need a long branch
stub.

This needs to be fixed but no one has time to work on it.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, 2004-09-11 at 05:17, Randolph Chung wrote:
> does anybody have a suggestion for a workaround? 

I'm glad you didn't say "good" work around.  How about just building the
stub ourselves:

3:	ldil	L%2b,%r19
	ldo	R%2b(%r19),%r19
	bv,n	0(%r19)

This is certainly more efficient than the linker could ever do since we
know that even on LP64 the kernel lies under 4GB.

James


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In reference to a message from John David Anglin, dated Sep 11:
> > when this code is compiled and assembled, i can see in the disassembly
> > that the insn at "3:" contains a PCREL17F reloc against
> 
> Not a PCREL22F?

no, i think you get a PCRLE22F only if the link register is r2, right?

> Does it point to a long branch stub?  I've had trouble with this
> before when trying to use sibcalls.  There's only one stub table
> and if you can't get there you're scuppered.  Since your branch is
> in a different section from the target, you may need a long branch
> stub.

oh, right, it's that problem again.... :-(

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: [parisc-linux] [RFC] Revamp exception handling in the kernel
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Xref: news.gmane.org gmane.linux.ports.parisc:21965

Currently, palinux handles exceptions differently from other
architectures in the kernel. On most other architectures, an exception
to a read/store that has an associated exception table entry in the
kernel is handled by code in a fixup section, which is responsible for
setting the proper return values, etc.

On pa, we currently have an interesting scheme that associates a "skip"
value with each exception entry. The bottom two bits of the skip value
indicates whether r8,r9 should be set to -EFAULT,0 during a fault, and
the top bits indicate a relative adjustment that should be applied to
the iaoq to handle the fault.

The patch below, based on my discussions with jejb, changes this
behaviour so that it more closely matches what happens on other
architectures (but with a twist...): the exception table entries now
contain an *absolute* address to branch to for the fixup [1]. The 
fixups are placed in a separate fixup section (this simplifies a bit of 
code in unaligned.c too). The fixup code loads up whatever values are 
required by the caller, and typically branches back to the original 
code at a correct location to continue.

This frees up the bottom two bits for other purposes -- currently there
is no way to pass the faulting address and instruction back to an
exception table handler. The proposal is to reuse the bottom 2 bits to
indicate whether the faulting address/insn should be passed back to the
handler in r8/r9. (this will be used by the optimized pa copy routines,
for example)

One downside of this approach is that the extra fixup sections take up
more space, so the end kernel is bigger. In my test on 64-bit, the
kernel size increases by ~2%.

The patch below has been tested against 2.6.8.1-pa11 on 64-bit-SMP, and
compile tested on 32-bit-UP. I don't have a 32-bit machine to test on
atm, so test reports are most welcome [2]. I've applied the manual stubs
trick that jejb mentioned earlier, but only for 64-bit, since the 32-bit
linker is able to generate those stubs automatically when needed.

Comments?

randolph

[1] The change to using absolute jumps is because gas doesn't want to
let us take the difference of labels in two different sections (viz.
.text vs .fixup). jejb and I are not able to come up with a case where
using relative jumps is required.

[2] Since this changes the *exception* path, simply booting a kernel or
building things will not exercise the new code. You need to do something
that will trigger a load/store fault on userspace in the kernel. If I
were Carlos I would have attached a nice testsuite to this patch, but
alas I've only done some manual testing on a few cases.... there's a
debug printk in this patch which will print something like:
    "applying fixup for 0x10281ae4, fixup at 0x103ca614"
if you see that, then you are exercising the new code.


Index: arch/parisc/kernel/syscall.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/syscall.S,v
retrieving revision 1.14
diff -u -p -r1.14 syscall.S
--- arch/parisc/kernel/syscall.S	10 Sep 2004 14:52:01 -0000	1.14
+++ arch/parisc/kernel/syscall.S	11 Sep 2004 16:25:50 -0000
@@ -29,6 +29,19 @@
 #else
 	.level		1.1
 #endif
+
+#ifndef __LP64__
+	.macro fixup_branch,lbl
+	b	    \lbl
+	.endm
+#else
+	.macro fixup_branch,lbl
+	ldil	    L%\lbl, %r1
+	ldo	    R%\lbl(%r1), %r1
+	bv,n        %r0(%r1)
+	.endm
+#endif
+
 	.text
 
 	.import syscall_exit,code
@@ -575,10 +588,8 @@ cas_action:
 	/* Return to userspace, set no error */
 	b	lws_exit
 	copy	%r0, %r21
-	nop	/* Add some visual space in objdump */
-	nop
-	nop
-	nop
+
+	.section .fixup,"ax"
 3:		
 	/* Error occured on load or store */
 #ifdef CONFIG_SMP
@@ -588,12 +599,13 @@ cas_action:
 	stw	%r0, 4(%sr2,%r20)
 # endif
 #endif
-	b	lws_exit
+	fixup_branch lws_exit
 	ldo	-EFAULT(%r0),%r21	/* set errno */
 	nop
 	nop
 	nop
 	nop
+	.previous
 
 	/* Two exception table entries, one for the load,
 	   the other for the store. Either return -EFAULT */
@@ -601,10 +613,10 @@ cas_action:
 #ifdef __LP64__
 	/* Pad the address calculation */
 	.word	0,(2b - linux_gateway_page)
-	.dword	(3b - 2b) 
+	.dword	3b
 #else
 	.word	2b - linux_gateway_page
-	.word	(3b - 2b) 
+	.word	3b
 #endif
 	.previous
 
@@ -612,10 +624,10 @@ cas_action:
 #ifdef __LP64__
 	/* Pad the address calculation */
 	.word	0,(1b - linux_gateway_page)
-	.dword	(3b - 1b) 
+	.dword	3b
 #else
 	.word	1b - linux_gateway_page
-	.word	(3b - 1b) 
+	.word	3b
 #endif
 	.previous
 
Index: arch/parisc/kernel/unaligned.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/unaligned.c,v
retrieving revision 1.8
diff -u -p -r1.8 unaligned.c
--- arch/parisc/kernel/unaligned.c	21 Aug 2004 06:19:33 -0000	1.8
+++ arch/parisc/kernel/unaligned.c	11 Sep 2004 16:25:50 -0000
@@ -23,6 +23,7 @@
 #include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <asm/uaccess.h>
 
 /* #define DEBUG_UNALIGNED 1 */
 
@@ -134,15 +135,19 @@ static int emulate_ldh(struct pt_regs *r
 "1:	ldbs	0(%%sr1,%3), %%r20\n"
 "2:	ldbs	1(%%sr1,%3), %0\n"
 "	depw	%%r20, 23, 24, %0\n"
-"	cmpclr,= %%r0, %%r0, %1\n"
-"3:	ldo	-2(%%r0), %1\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %1\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %1\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (val), "=r" (ret)
@@ -175,15 +180,19 @@ static int emulate_ldw(struct pt_regs *r
 "	subi	32,%%r19,%%r19\n"
 "	mtctl	%%r19,11\n"
 "	vshd	%0,%%r20,%0\n"
-"	cmpclr,= %%r0, %%r0, %1\n"
-"3:	ldo	-2(%%r0), %1\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %1\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %1\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (val), "=r" (ret)
@@ -222,15 +231,19 @@ static int emulate_ldd(struct pt_regs *r
 "	subi	64,%%r19,%%r19\n"
 "	mtsar	%%r19\n"
 "	shrpd	%0,%%r20,%%sar,%0\n"
-"	cmpclr,= %%r0, %%r0, %1\n"
-"3:	ldo	-2(%%r0), %1\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %1\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %1\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (val), "=r" (ret)
@@ -250,17 +263,20 @@ static int emulate_ldd(struct pt_regs *r
 "	mtsar	%%r19\n"
 "	vshd	%0,%1,%0\n"
 "	vshd	%1,%%r20,%1\n"
-"	cmpclr,= %%r0, %%r0, %2\n"
-"4:	ldo	-2(%%r0), %2\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %2\n"
+"4:	\n"
+"	.section .fixup,\"ax\"\n"
+"5:	ldi	-2, %2\n"
+	FIXUP_BRANCH(4b)
+"	.previous\n"
 #ifdef __LP64__
-"	.dword	1b,(4b-1b)\n"
-"	.dword  2b,(4b-2b)\n"
-"	.dword	3b,(4b-3b)\n"
-#else
-"	.word	1b,(4b-1b)\n"
-"	.word	2b,(4b-2b)\n"
-"	.word	3b,(4b-3b)\n"
+"	.dword	1b,5b\n"
+"	.dword  2b,5b\n"
+"	.dword	3b,5b\n"
+#else
+"	.word	1b,5b\n"
+"	.word	2b,5b\n"
+"	.word	3b,5b\n"
 #endif
 "	.previous\n"
 	: "=r" (valh), "=r" (vall), "=r" (ret)
@@ -296,15 +312,19 @@ static int emulate_sth(struct pt_regs *r
 "	extrw,u %1, 23, 8, %%r19\n"
 "1:	stb %1, 1(%%sr1, %2)\n"
 "2:	stb %%r19, 0(%%sr1, %2)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"3:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %0\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
@@ -346,15 +366,19 @@ static int emulate_stw(struct pt_regs *r
 "	or	%%r1, %%r21, %%r21\n"
 "	stw	%%r20,0(%%sr1,%2)\n"
 "	stw	%%r21,4(%%sr1,%2)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"3:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %0\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
@@ -399,19 +423,23 @@ static int emulate_std(struct pt_regs *r
 "	or	%%r1, %%r21, %%r21\n"
 "3:	std	%%r20,0(%%sr1,%2)\n"
 "4:	std	%%r21,8(%%sr1,%2)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"5:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"5:	\n"
+"	.section .fixup,\"ax\"\n"
+"6:	ldi	-2, %0\n"
+	FIXUP_BRANCH(5b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(5b-1b)\n"
-"	.dword  2b,(5b-2b)\n"
-"	.dword	3b,(5b-3b)\n"
-"	.dword  4b,(5b-4b)\n"
-#else
-"	.word	1b,(5b-1b)\n"
-"	.word	2b,(5b-2b)\n"
-"	.word	3b,(5b-3b)\n"
-"	.word	4b,(5b-4b)\n"
+"	.dword	1b,6b\n"
+"	.dword  2b,6b\n"
+"	.dword	3b,6b\n"
+"	.dword  4b,6b\n"
+#else
+"	.word	1b,6b\n"
+"	.word	2b,6b\n"
+"	.word	3b,6b\n"
+"	.word	4b,6b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
@@ -438,21 +466,25 @@ static int emulate_std(struct pt_regs *r
 "3:	stw	%1,0(%%sr1,%1)\n"
 "4:	stw	%%r1,4(%%sr1,%3)\n"
 "5:	stw	%2,8(%%sr1,%3)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"6:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"6:	\n"
+"	.section .fixup,\"ax\"\n"
+"7:	ldi	-2, %0\n"
+	FIXUP_BRANCH(6b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(6b-1b)\n"
-"	.dword  2b,(6b-2b)\n"
-"	.dword	3b,(6b-3b)\n"
-"	.dword  4b,(6b-4b)\n"
-"	.dword  5b,(6b-5b)\n"
-#else
-"	.word	1b,(6b-1b)\n"
-"	.word	2b,(6b-2b)\n"
-"	.word	3b,(6b-3b)\n"
-"	.word	4b,(6b-4b)\n"
-"	.word  	5b,(6b-5b)\n"
+"	.dword	1b,7b\n"
+"	.dword  2b,7b\n"
+"	.dword	3b,7b\n"
+"	.dword  4b,7b\n"
+"	.dword  5b,7b\n"
+#else
+"	.word	1b,7b\n"
+"	.word	2b,7b\n"
+"	.word	3b,7b\n"
+"	.word	4b,7b\n"
+"	.word  	5b,7b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
Index: arch/parisc/lib/lusercopy.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/lib/lusercopy.S,v
retrieving revision 1.3
diff -u -p -r1.3 lusercopy.S
--- arch/parisc/lib/lusercopy.S	17 Jan 2004 06:39:24 -0000	1.3
+++ arch/parisc/lib/lusercopy.S	11 Sep 2004 16:25:50 -0000
@@ -53,6 +53,18 @@
 	mtsp        %r1,%sr1
 	.endm
 
+#ifndef __LP64__
+	.macro fixup_branch lbl
+	b	    \lbl
+	.endm
+#else
+	.macro fixup_branch lbl
+	ldil	    L%\lbl, %r1
+	ldo	    R%\lbl(%r1), %r1
+	bv,n        %r0(%r1)
+	.endm
+#endif
+
 	/*
 	 * unsigned long
 	 * lcopy_to_user(void *to, const void *from, unsigned long n)
@@ -77,14 +89,16 @@ $lctu_done:
 	copy        %r24,%r28
 	.exit
 
-2:      b $lctu_done
+	.section .fixup,"ax"
+2:      fixup_branch $lctu_done
 	ldo         1(%r24),%r24
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -118,18 +132,20 @@ $lcfu_done:
 	copy        %r24,%r28
 	.exit
 
+	.section .fixup,"ax"
 2:      copy        %r24,%r23
 $lcfu_zero_loop:
 	addib,<>    -1,%r23,$lcfu_zero_loop
 	stbs,ma     %r0,1(%r26)
-	b           $lcfu_done
+	fixup_branch $lcfu_done
 	nop
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -159,14 +175,16 @@ $lciu_done:
 	copy        %r24,%r28
 	.exit
 
-2:      b $lciu_done
+	.section .fixup,"ax"
+2:      fixup_branch $lciu_done
 	ldo         1(%r24),%r24
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -201,16 +219,18 @@ $lsfu_exit:
 	nop
 	.exit
 
-3:      b           $lsfu_exit
+	.section .fixup,"ax"
+3:      fixup_branch $lsfu_exit
 	ldi         -EFAULT,%r28
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(3b-1b)
-	.dword      2b,(3b-2b)
+	.dword      1b,3b
+	.dword      2b,3b
 #else
-	.word       1b,(3b-1b)
-	.word       2b,(3b-2b)
+	.word       1b,3b
+	.word       2b,3b
 #endif
 	.previous
 
@@ -239,14 +259,16 @@ $lclu_done:
 	copy        %r25,%r28
 	.exit
 
-2:      b $lclu_done
+	.section .fixup,"ax"
+2:      fixup_branch $lclu_done
 	ldo        1(%r25),%r25
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -282,16 +304,18 @@ $lslen_nzero:
 	b           $lslen_done
 	ldo         1(%r26),%r26 /* special case for N == 0 */
 
-3:      b           $lslen_done
+	.section .fixup,"ax"
+3:      fixup_branch $lslen_done
 	copy        %r24,%r26    /* reset r26 so 0 is returned on fault */
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(3b-1b)
-	.dword      2b,(3b-2b)
+	.dword      1b,3b
+	.dword      2b,3b
 #else
-	.word       1b,(3b-1b)
-	.word       2b,(3b-2b)
+	.word       1b,3b
+	.word       2b,3b
 #endif
 	.previous
 
Index: arch/parisc/mm/fault.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/mm/fault.c,v
retrieving revision 1.1
diff -u -p -r1.1 fault.c
--- arch/parisc/mm/fault.c	29 Jul 2003 17:00:42 -0000	1.1
+++ arch/parisc/mm/fault.c	11 Sep 2004 16:25:50 -0000
@@ -235,12 +235,14 @@ no_context:
 
 		if (fix) {
 
-			if (fix->skip & 1) 
-				regs->gr[8] = -EFAULT;
-			if (fix->skip & 2)
-				regs->gr[9] = 0;
+printk("applying fixup for 0x%lx, fixup at 0x%lx\n", regs->iaoq[0], fix->fixup & ~3);
 
-			regs->iaoq[0] += ((fix->skip) & ~3);
+			if (fix->fixup & 1) 
+				regs->gr[8] = regs->iir;
+			if (fix->fixup & 2)
+				regs->gr[9] = regs->ior;
+
+			regs->iaoq[0] = ((fix->fixup) & ~3);
 
 			/*
 			 * NOTE: In some cases the faulting instruction
Index: include/asm-parisc/uaccess.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/uaccess.h,v
retrieving revision 1.13
diff -u -p -r1.13 uaccess.h
--- include/asm-parisc/uaccess.h	4 Feb 2004 18:24:55 -0000	1.13
+++ include/asm-parisc/uaccess.h	11 Sep 2004 16:26:04 -0000
@@ -54,16 +54,15 @@ extern int __put_user_bad(void);
 /*
  * The exception table contains two values: the first is an address
  * for an instruction that is allowed to fault, and the second is
- * the number of bytes to skip if a fault occurs. We also support in
- * two bit flags: 0x2 tells the exception handler to clear register
- * r9 and 0x1 tells the exception handler to put -EFAULT in r8.
- * This allows us to handle the simple cases for put_user and
- * get_user without having to have .fixup sections.
+ * the address to the fixup routine. We also support two bit flags: 
+ * 0x2 tells the exception handler to store the faulting address in
+ * r9 and 0x1 tells the exception handler to store the faulting
+ * insn in r8.
  */
 
 struct exception_table_entry {
 	unsigned long insn;  /* address of insn that is allowed to fault.   */
-	long skip;           /* pcoq skip | r9 clear flag | r8 -EFAULT flag */
+	long fixup;          /* fixup | r9 ior flag | r8 iir flag */
 };
 
 #define __get_user(x,ptr)                               \
@@ -94,43 +93,70 @@ struct exception_table_entry {
 	__gu_err;                                       \
 })
 
+#ifndef __LP64__
+#define FIXUP_BRANCH(lbl) \
+	"\tb " #lbl "\n"
+#else
+#define FIXUP_BRANCH(lbl) \
+	"\tldil L%%" #lbl ", %%r1\n"			\
+	"\tldo R%%" #lbl "(%%r1), %%r1\n"		\
+	"\tbv,n %%r0(%%r1)\n"
+#endif
+
+/* -14 is -EFAULT below */
 #ifdef __LP64__
 #define __get_kernel_asm(ldx,ptr)                       \
 	__asm__("\n1:\t" ldx "\t0(%2),%0\n"             \
 		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.dword\t1b\n"                       \
-		 "\t.dword\t(2b-1b)+3\n"                \
-		 "\t.previous"                          \
+		"\t.section .fixup,\"ax\"\n"		\
+		"3:\tldi -14, %1\n"			\
+		"\tcopy %%r0, %0\n"			\
+		FIXUP_BRANCH(2b)			\
+		"\t.previous"                          	\
+		"\t.section __ex_table,\"aw\"\n"        \
+		"\t.dword\t1b,3b\n"			\
+		"\t.previous"                          	\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err));
 
 #define __get_user_asm(ldx,ptr)                         \
 	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
 		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.dword\t1b\n"                       \
-		 "\t.dword\t(2b-1b)+3\n"                \
-		 "\t.previous"                          \
+		"\t.section .fixup,\"ax\"\n"		\
+		"3:\tldi -14, %1\n"			\
+		"\tcopy %%r0, %0\n"			\
+		FIXUP_BRANCH(2b)			\
+		"\t.previous"				\
+		"\t.section __ex_table,\"aw\"\n"	\
+		"\t.dword\t1b,3b\n"			\
+		"\t.previous"				\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err));
 #else
 #define __get_kernel_asm(ldx,ptr)                       \
 	__asm__("\n1:\t" ldx "\t0(%2),%0\n"             \
 		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.word\t1b\n"                        \
-		 "\t.word\t(2b-1b)+3\n"                 \
-		 "\t.previous"                          \
+		"\t.section .fixup,\"ax\"\n"		\
+		"3:\tldi -14, %1\n"			\
+		"\tcopy %%r0, %0\n"			\
+		FIXUP_BRANCH(2b)			\
+		"\t.previous"				\
+		"\t.section __ex_table,\"aw\"\n"        \
+		"\t.word\t1b,3b\n"			\
+		"\t.previous"                          	\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err));
 
 #define __get_user_asm(ldx,ptr)                         \
 	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
 		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.word\t1b\n"                        \
-		 "\t.word\t(2b-1b)+3\n"                 \
+		"\t.section .fixup,\"ax\"\n"		\
+		"3:\tldi -14, %1\n"			\
+		"\tcopy %%r0, %0\n"			\
+		FIXUP_BRANCH(2b)			\
+		"\t.previous"				\
+		"\t.section __ex_table,\"aw\"\n"	\
+		 "\t.word\t1b,3b\n"			\
 		 "\t.previous"                          \
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err));
@@ -168,15 +194,19 @@ struct exception_table_entry {
  * gcc knows about, so there are no aliasing issues.
  */
 
+/* -14 is -EFAULT below */
 #ifdef __LP64__
 #define __put_kernel_asm(stx,x,ptr)                         \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%1)\n"                 \
 		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.dword\t1b\n"                           \
-		 "\t.dword\t(2b-1b)+1\n"                    \
-		 "\t.previous"                              \
+		"\t.section .fixup,\"ax\"\n"		    \
+		"3:\tldi -14, %0\n"			    \
+		FIXUP_BRANCH(2b)			\
+		"\t.previous"				    \
+		"\t.section __ex_table,\"aw\"\n"            \
+		"\t.dword\t1b,3b\n"			    \
+		"\t.previous"                               \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
 
@@ -184,9 +214,12 @@ struct exception_table_entry {
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
 		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.dword\t1b\n"                           \
-		 "\t.dword\t(2b-1b)+1\n"                    \
+		"\t.section .fixup,\"ax\"\n"		    \
+		"3:\tldi -14, %0\n"			    \
+		FIXUP_BRANCH(2b)			\
+		"\t.previous"				    \
+		"\t.section __ex_table,\"aw\"\n"            \
+		 "\t.dword\t1b,3b\n"			    \
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
@@ -195,9 +228,12 @@ struct exception_table_entry {
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%1)\n"                 \
 		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.word\t1b\n"                            \
-		 "\t.word\t(2b-1b)+1\n"                     \
+		"\t.section .fixup,\"ax\"\n"		    \
+		"3:\tldi -14, %0\n"			    \
+		FIXUP_BRANCH(2b)			\
+		"\t.previous"				    \
+		"\t.section __ex_table,\"aw\"\n"            \
+		 "\t.word\t1b,3b\n"			    \
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
@@ -206,9 +242,12 @@ struct exception_table_entry {
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
 		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.word\t1b\n"                            \
-		 "\t.word\t(2b-1b)+1\n"                     \
+		"\t.section .fixup,\"ax\"\n"		    \
+		"3:\tldi -14, %0\n"			    \
+		FIXUP_BRANCH(2b)			\
+		"\t.previous"				    \
+		"\t.section __ex_table,\"aw\"\n"            \
+		 "\t.word\t1b,3b\n"                         \
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
@@ -221,11 +260,14 @@ static inline void __put_kernel_asm64(u6
 		"\n1:\tstw %1,0(%0)\n"
 		"\n2:\tstw %2,4(%0)\n"
 		"3:\n"
+		"\t.section .fixup,\"ax\"\n"
+/*		"4:\tldi -14, %0\n" */
+		"4:"
+		FIXUP_BRANCH(3b)
+		"\t.previous"
 		"\t.section __ex_table,\"aw\"\n"
-		 "\t.word\t1b\n"
-		 "\t.word\t(3b-1b)+1\n"
-		 "\t.word\t2b\n"
-		 "\t.word\t(3b-2b)+1\n"
+		 "\t.word\t1b,4b\n"
+		 "\t.word\t2b,4b\n"
 		 "\t.previous"
 		: : "r"(ptr), "r"(hi), "r"(lo));
 
@@ -239,11 +281,14 @@ static inline void __put_user_asm64(u64 
 		"\n1:\tstw %1,0(%%sr3,%0)\n"
 		"\n2:\tstw %2,4(%%sr3,%0)\n"
 		"3:\n"
+		"\t.section .fixup,\"ax\"\n"
+/*		"4:\tldi -14, %0\n" */
+		"4:"
+		FIXUP_BRANCH(3b)
+		"\t.previous"
 		"\t.section __ex_table,\"aw\"\n"
-		 "\t.word\t1b\n"
-		 "\t.word\t(3b-1b)+1\n"
-		 "\t.word\t2b\n"
-		 "\t.word\t(3b-2b)+1\n"
+		 "\t.word\t1b,4b\n"
+		 "\t.word\t2b,4b\n"
 		 "\t.previous"
 		: : "r"(ptr), "r"(hi), "r"(lo));
 
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
_______________________________________________
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parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: [parisc-linux] stay the same with gcc-3.4.2 :( [was: back to
 glibc-2.3.3 & gcc-3.4.1 pb]
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Xref: news.gmane.org gmane.linux.ports.parisc:21966

Hello all,

I didn't do much more because I was very busy elsewhere and also because of the announce of gcc-3.4.2.
I was hoping that it fix the pb but unfortunately it's not the case :(

I will so continue investigation ;)

See you latter,
	Joel

Joel Soete wrote:
> Hello Dave,
> 
> John David Anglin wrote:
> 
>>>     0x411cc740 <_dl_make_fptr+112>: ldw,s r7(,r6),ret0
>>> in:
>>> r7 == 0x7c4
>>> r6 == 0x0
>>
>>
>>
>> r6 is wrong.  Find out why it is zero.
>>
> Far from being an expert, with help of ddd it seems that:
> ElfW(Addr)
> _dl_make_fptr (struct link_map *map, const ElfW(Sym) *sym,
>                ElfW(Addr) ip)
> {
>   ElfW(Addr) *ftab = map->l_mach.fptr_table;    <====[2]
> 
> (Elf32_Addr *)fptr_table == (Elf32_Addr *) 0x0
> 
> (the same for gcc-3.3 ;) )
> 
> is:
> Dump of assembler code from 0x411e371c to 0x411e381c:
>     0x411e371c <_dl_make_fptr+76>:  ldw 1fc(,r26),r6 (r6 == 0x0)
> 
> the weird stuff his in fact here:
> 
>   if (__builtin_expect (ftab == NULL, 0))
>     ftab = make_fptr_table (map);
> 
> with gcc-3.3 the register (r7) (which seems to me contains the value 
> pointed by ftab) is well the one addressed by map->l_mach.fptr_table ie 
> map->l_mach.fptr_table == 0x40001000 (and btw map->l_mach.fptr_table_len 
> == 2067)
> 
> OTC with gcc-3.4 the register (r6) after the 'call' of the inlined 
> make_fptr_table() is restored to its starting value i.e.: 0x0
> eventhought that map->l_mach.fptr_table == 0x40001000 (and btw 
> map->l_mach.fptr_table_len == 2067) exactly the same as gcc-3.3.
> 
> duno if it could help:
> for gcc-3.3 the text is:
> Dump of assembler code from 0x412630d0 to 0x412631d0:
>     0x412630d0 <_dl_make_fptr+44>:  ldw 1fc(,r26),r7    <====[2]
>     0x412630d4 <_dl_make_fptr+48>:  copy r26,r8
>     0x412630d8 <_dl_make_fptr+52>:  cmpib,= 0,r7,0x412631a0 
> <_dl_make_fptr+252>    <===='call' make_fptr_table()
>     0x412630dc <_dl_make_fptr+56>:  copy r25,r3
>     0x412630e0 <_dl_make_fptr+60>:  ldw 30(,r8),r20
>     0x412630e4 <_dl_make_fptr+64>:  ldw 1f8(,r8),r22
>     0x412630e8 <_dl_make_fptr+68>:  ldw 4(,r20),r21
>     0x412630ec <_dl_make_fptr+72>:  sub r3,r21,r21
>     0x412630f0 <_dl_make_fptr+76>:  extrw,s r21,27,28,r21
>     0x412630f4 <_dl_make_fptr+80>:  cmpb,<<= r22,r21,0x41263184 
> <_dl_make_fptr+224>
>     0x412630f8 <_dl_make_fptr+84>:  depw,z r21,29,30,r9
>     0x412630fc <_dl_make_fptr+88>:  add,l r9,r7,r21
>     0x41263100 <_dl_make_fptr+92>:  ldw 0(,r21),r20
>     0x41263104 <_dl_make_fptr+96>:  cmpib,<> 0,r20,0x41263150 
> <_dl_make_fptr+172>
>     0x41263108 <_dl_make_fptr+100>: copy r21,r3
>     0x4126310c <_dl_make_fptr+104>: copy r21,r6
>     0x41263110 <_dl_make_fptr+108>: addil 0,r19,%r1
>     0x41263114 <_dl_make_fptr+112>: ldw 5dc(,r1),r5
>     0x41263118 <_dl_make_fptr+116>: ldw 24(,r8),r20
>     0x4126311c <_dl_make_fptr+120>: copy r19,r4
>     0x41263120 <_dl_make_fptr+124>: copy r10,r26
>     0x41263124 <_dl_make_fptr+128>: b,l 0x41262fc4 <make_fdesc>,rp
>     0x41263128 <_dl_make_fptr+132>: ldw 4(,r20),r25
>     0x4126312c <_dl_make_fptr+136>: ldw 0(,r3),r20
>     0x41263130 <_dl_make_fptr+140>: cmpib,= 0,r20,0x4126317c 
> <_dl_make_fptr+216>
>     0x41263134 <_dl_make_fptr+144>: copy r4,r19
>     0x41263138 <_dl_make_fptr+148>: ldw 4(,r5),r20
>     0x4126313c <_dl_make_fptr+152>: stw r20,0(,ret0)
>     0x41263140 <_dl_make_fptr+156>: stw ret0,4(,r5)
>     0x41263144 <_dl_make_fptr+160>: ldw 0(,r6),r20
>     0x41263148 <_dl_make_fptr+164>: cmpib,=,n 0,r20,0x4126311c 
> <_dl_make_fptr+120>
>     0x4126314c <_dl_make_fptr+168>: ldw 24(,r8),r20
>     0x41263150 <_dl_make_fptr+172>: ldw r7(,r9),ret0
>     0x41263154 <_dl_make_fptr+176>: ldw -94(,sp),rp
>     0x41263158 <_dl_make_fptr+180>: ldw -7c(,sp),r9
>     0x4126315c <_dl_make_fptr+184>: ldw -78(,sp),r8
>     0x41263160 <_dl_make_fptr+188>: ldw -74(,sp),r7
>     0x41263164 <_dl_make_fptr+192>: ldw -70(,sp),r6
>     0x41263168 <_dl_make_fptr+196>: ldw -6c(,sp),r5
>     0x4126316c <_dl_make_fptr+200>: ldw -68(,sp),r4
>     0x41263170 <_dl_make_fptr+204>: ldw -64(,sp),r3
>     0x41263174 <_dl_make_fptr+208>: bv r0(rp)
>     0x41263178 <_dl_make_fptr+212>: ldw,mb -80(,sp),r10
>     0x4126317c <_dl_make_fptr+216>: b,l 0x41263150 <_dl_make_fptr+172>,r0
>     0x41263180 <_dl_make_fptr+220>: stw ret0,0(,r3)
>     0x41263184 <_dl_make_fptr+224>: addil 0,r19,%r1
>     0x41263188 <_dl_make_fptr+228>: ldi 0,r26
>     0x4126318c <_dl_make_fptr+232>: ldw 5e4(,r1),r1
>     0x41263190 <_dl_make_fptr+236>: copy r1,r23
>     0x41263194 <_dl_make_fptr+240>: ldi 0,r25
>     0x41263198 <_dl_make_fptr+244>: b,l 0x4125e4f8 <_dl_signal_error>,rp
>     0x4126319c <_dl_make_fptr+248>: ldi 0,r24
>     0x412631a0 <_dl_make_fptr+252>: ldw 2c(,r26),r21        <==== 
> map->l_mach.fptr_table()
>     0x412631a4 <_dl_make_fptr+256>: ldw 30(,r26),r20
>     0x412631a8 <_dl_make_fptr+260>: addil 0,r19,%r1
>     0x412631ac <_dl_make_fptr+264>: copy r19,r4
>     0x412631b0 <_dl_make_fptr+268>: ldw 4(,r20),r22
>     0x412631b4 <_dl_make_fptr+272>: ldw 4(,r21),r26
>     0x412631b8 <_dl_make_fptr+276>: ldi 3,r24
>     0x412631bc <_dl_make_fptr+280>: ldi 12,r23
>     0x412631c0 <_dl_make_fptr+284>: ldw 44(,r8),r21
>     0x412631c4 <_dl_make_fptr+288>: sub r26,r22,r26
>     0x412631c8 <_dl_make_fptr+292>: ldw 654(,r1),r1
>     0x412631cc <_dl_make_fptr+296>: ldw 4(,r21),r25
>     0x412631d0 <_dl_make_fptr+300>: ldw 4(,r1),r20
>     0x412631d4 <_dl_make_fptr+304>: ldi -1,r21
>     0x412631d8 <_dl_make_fptr+308>: b,l 0x41265570 <$$divU>,r31
>     0x412631dc <_dl_make_fptr+312>: sub r0,r20,r22
>     0x412631e0 <_dl_make_fptr+316>: stw r21,-34(,sp)
>     0x412631e4 <_dl_make_fptr+320>: ldi 0,r26
>     0x412631e8 <_dl_make_fptr+324>: depw,z ret1,29,30,r5
>     0x412631ec <_dl_make_fptr+328>: stw r0,-38(,sp)
>     0x412631f0 <_dl_make_fptr+332>: copy ret1,r6
>     0x412631f4 <_dl_make_fptr+336>: add,l r5,r20,r20
>     0x412631f8 <_dl_make_fptr+340>: add,l r20,r21,r20
>     0x412631fc <_dl_make_fptr+344>: and r20,r22,r20
>     0x41263200 <_dl_make_fptr+348>: b,l 0x412641bc <__mmap>,rp
>     0x41263204 <_dl_make_fptr+352>: copy r20,r25
>     0x41263208 <_dl_make_fptr+356>: copy r4,r19
>     0x4126320c <_dl_make_fptr+360>: cmpib,= -1,ret0,0x4126323c 
> <_dl_make_fptr+408>
>     0x41263210 <_dl_make_fptr+364>: copy ret0,r26
>     0x41263214 <_dl_make_fptr+368>: ldw 1fc(,r8),r20
>     0x41263218 <_dl_make_fptr+372>: cmpib,<>,n 0,r20,0x4126322c 
> <_dl_make_fptr+392>
>     0x4126321c <_dl_make_fptr+376>: stw ret0,1fc(,r8)
>     0x41263220 <_dl_make_fptr+380>: stw r6,1f8(,r8)
>     0x41263224 <_dl_make_fptr+384>: b,l 0x412630e0 <_dl_make_fptr+60>,r0
>     0x41263228 <_dl_make_fptr+388>: ldw 1fc(,r8),r7    <==== return 
> map->l_mach.fptr_table;
>     0x4126322c <_dl_make_fptr+392>: b,l 0x4126421c <munmap>,rp
>     0x41263230 <_dl_make_fptr+396>: copy r5,r25
>     0x41263234 <_dl_make_fptr+400>: b,l 0x41263224 <_dl_make_fptr+384>,r0
>     0x41263238 <_dl_make_fptr+404>: copy r4,r19
>     0x4126323c <_dl_make_fptr+408>: addil 0,r4,%r1
>     0x41263240 <_dl_make_fptr+412>: copy r1,r20
>     0x41263244 <_dl_make_fptr+416>: ldw 62c(,r20),r20
>     0x41263248 <_dl_make_fptr+420>: ldw 0(,r20),r26
>     0x4126324c <_dl_make_fptr+424>: addil 0,r4,%r1
>     0x41263250 <_dl_make_fptr+428>: ldw 5e8(,r1),r21
>     0x41263254 <_dl_make_fptr+432>: b,l 0x41263194 <_dl_make_fptr+240>,r0
>     0x41263258 <_dl_make_fptr+436>: copy r21,r23
>  [...]
> 
> and for gcc-3.4:
> Dump of assembler code from 0x4128571c to 0x4128581c:
>     0x4128571c <_dl_make_fptr+76>:  ldw 1fc(,r26),r6    <====[2]
>     0x41285720 <_dl_make_fptr+80>:  cmpib,= 0,r6,0x412858f4 
> <_dl_make_fptr+548>    <===='call' make_fptr_table()
>     0x41285724 <_dl_make_fptr+84>:  copy r25,r3
>     0x41285728 <_dl_make_fptr+88>:  ldw 1f8(,r26),ret1
>     0x4128572c <_dl_make_fptr+92>:  ldw 30(,r10),r21
>     0x41285730 <_dl_make_fptr+96>:  ldw 4(,r21),r20
>     0x41285734 <_dl_make_fptr+100>: sub r3,r20,r20
>     0x41285738 <_dl_make_fptr+104>: extrw,s r20,27,28,r7
>     0x4128573c <_dl_make_fptr+108>: cmpb,>>=,n r7,ret1,0x412859d0 
> <_dl_make_fptr+768>
>     0x41285740 <_dl_make_fptr+112>: ldw,s r7(,r6),ret0
>     0x41285744 <_dl_make_fptr+116>: cmpib,<> 0,ret0,0x412857c8 
> <_dl_make_fptr+248>
>     0x41285748 <_dl_make_fptr+120>: addil 0,r19,%r1
>     0x4128574c <_dl_make_fptr+124>: depw,z r7,29,30,r11
>     0x41285750 <_dl_make_fptr+128>: ldw 638(,r1),r13
>     0x41285754 <_dl_make_fptr+132>: addil 0,r19,%r1
>     0x41285758 <_dl_make_fptr+136>: ldw 5c0(,r1),r5
>     0x4128575c <_dl_make_fptr+140>: addil 0,r19,%r1
>     0x41285760 <_dl_make_fptr+144>: ldo -78(sp),r14
>     0x41285764 <_dl_make_fptr+148>: ldw 610(,r1),r16
>     0x41285768 <_dl_make_fptr+152>: add,l r11,r6,r15
>     0x4128576c <_dl_make_fptr+156>: copy r5,r9
>     0x41285770 <_dl_make_fptr+160>: ldw 24(,r10),r20
>     0x41285774 <_dl_make_fptr+164>: ldw 4(,r20),r8
>     0x41285778 <_dl_make_fptr+168>: ldw 0(,r5),r3
>     0x4128577c <_dl_make_fptr+172>: ldw 4(,r3),r23
>     0x41285780 <_dl_make_fptr+176>: ldw 8(,r3),r20
>     0x41285784 <_dl_make_fptr+180>: cmpb,>>= r20,r23,0x4128580c 
> <_dl_make_fptr+316>
>     0x41285788 <_dl_make_fptr+184>: ldo 1(r20),r22
>     0x4128578c <_dl_make_fptr+188>: ldw 8(,r3),r21
>     0x41285790 <_dl_make_fptr+192>: cmpb,<> r20,r21,0x41285780 
> <_dl_make_fptr+176>
>     0x41285794 <_dl_make_fptr+196>: shladd,l r21,3,r3,r20
>     0x41285798 <_dl_make_fptr+200>: stw r22,8(,r3)
>     0x4128579c <_dl_make_fptr+204>: ldo c(r20),r26
>     0x412857a0 <_dl_make_fptr+208>: stw r8,4(,r26)
>     0x412857a4 <_dl_make_fptr+212>: stw r12,0(,r26)
>     0x412857a8 <_dl_make_fptr+216>: ldw r11(,r6),r20
>     0x412857ac <_dl_make_fptr+220>: cmpib,=,n 0,r20,0x412858a8 
> <_dl_make_fptr+472>
>     0x412857b0 <_dl_make_fptr+224>: ldw 4(,r9),r20
>     0x412857b4 <_dl_make_fptr+228>: stw r20,0(,r26)
>     0x412857b8 <_dl_make_fptr+232>: stw r26,4(,r9)
>     0x412857bc <_dl_make_fptr+236>: ldw,s r7(,r6),ret0
>     0x412857c0 <_dl_make_fptr+240>: cmpib,=,n 0,ret0,0x41285774 
> <_dl_make_fptr+164>
>     0x412857c4 <_dl_make_fptr+244>: ldw 24(,r10),r20
>     0x412857c8 <_dl_make_fptr+248>: ldw -94(,sp),rp
>     0x412857cc <_dl_make_fptr+252>: ldw -74(,sp),r16
>     0x412857d0 <_dl_make_fptr+256>: ldw -70(,sp),r15
>     0x412857d4 <_dl_make_fptr+260>: ldw -6c(,sp),r14
>     0x412857d8 <_dl_make_fptr+264>: ldw -68(,sp),r13
>     0x412857dc <_dl_make_fptr+268>: ldw -64(,sp),r12
>     0x412857e0 <_dl_make_fptr+272>: ldw -60(,sp),r11
>     0x412857e4 <_dl_make_fptr+276>: ldw -5c(,sp),r10
>     0x412857e8 <_dl_make_fptr+280>: ldw -58(,sp),r9
>     0x412857ec <_dl_make_fptr+284>: ldw -54(,sp),r8
>     0x412857f0 <_dl_make_fptr+288>: ldw -50(,sp),r7
>     0x412857f4 <_dl_make_fptr+292>: ldw -4c(,sp),r6
>     0x412857f8 <_dl_make_fptr+296>: ldw -48(,sp),r5
>     0x412857fc <_dl_make_fptr+300>: ldw -44(,sp),r4
>     0x41285800 <_dl_make_fptr+304>: ldw -40(,sp),r3
>     0x41285804 <_dl_make_fptr+308>: bv r0(rp)
>     0x41285808 <_dl_make_fptr+312>: ldo -80(sp),sp
>     0x4128580c <_dl_make_fptr+316>: ldw 4(,r5),r20
>     0x41285810 <_dl_make_fptr+320>: cmpib,<>,n 0,r20,0x41285984 
> <_dl_make_fptr+692>
>     0x41285814 <_dl_make_fptr+324>: ldw 8(,r5),r21
>     0x41285818 <_dl_make_fptr+328>: depw,z r21,30,31,r20
> 
> Dump of assembler code from 0x412858f4 to 0x412859f4:
>     0x412858f4 <_dl_make_fptr+548>: ldw 30(,r26),r20    <==== 
> map->l_mach.fptr_table()
>     0x412858f8 <_dl_make_fptr+552>: ldw 4(,r20),r21
>     0x412858fc <_dl_make_fptr+556>: addil 0,r19,%r1
>     0x41285900 <_dl_make_fptr+560>: copy r1,r22
>     0x41285904 <_dl_make_fptr+564>: ldw 2c(,r26),r20
>     0x41285908 <_dl_make_fptr+568>: ldw 4(,r20),r26
>     0x4128590c <_dl_make_fptr+572>: sub r26,r21,r26
>     0x41285910 <_dl_make_fptr+576>: ldw 44(,r10),r20
>     0x41285914 <_dl_make_fptr+580>: ldw 4(,r20),r25
>     0x41285918 <_dl_make_fptr+584>: b,l 0x41287d60 <$$divU>,r31
>     0x4128591c <_dl_make_fptr+588>: copy r19,r4
>     0x41285920 <_dl_make_fptr+592>: ldi -1,r20
>     0x41285924 <_dl_make_fptr+596>: stw r20,-34(,sp)
>     0x41285928 <_dl_make_fptr+600>: ldi 0,r26
>     0x4128592c <_dl_make_fptr+604>: ldw 638(,r22),r20
>     0x41285930 <_dl_make_fptr+608>: ldw 4(,r20),r25
>     0x41285934 <_dl_make_fptr+612>: depw,z ret1,29,30,r5
>     0x41285938 <_dl_make_fptr+616>: ldi 3,r24
>     0x4128593c <_dl_make_fptr+620>: sub r0,r25,r20
>     0x41285940 <_dl_make_fptr+624>: copy ret1,r6
>     0x41285944 <_dl_make_fptr+628>: stw r0,-38(,sp)
>     0x41285948 <_dl_make_fptr+632>: add,l r5,r25,r25
>     0x4128594c <_dl_make_fptr+636>: ldi 12,r23
>     0x41285950 <_dl_make_fptr+640>: ldo -1(r25),r25
>     0x41285954 <_dl_make_fptr+644>: b,l 0x412869a8 <__mmap>,rp
>     0x41285958 <_dl_make_fptr+648>: and r25,r20,r25
>     0x4128595c <_dl_make_fptr+652>: copy r4,r19
>     0x41285960 <_dl_make_fptr+656>: cmpib,= -1,ret0,0x412859e0 
> <_dl_make_fptr+784>
>     0x41285964 <_dl_make_fptr+660>: copy ret0,r26
>     0x41285968 <_dl_make_fptr+664>: ldw 1fc(,r10),r20
>     0x4128596c <_dl_make_fptr+668>: cmpib,<>,n 0,r20,0x412859a0 
> <_dl_make_fptr+720>
>     0x41285970 <_dl_make_fptr+672>: copy r6,ret1
>     0x41285974 <_dl_make_fptr+676>: stw r6,1f8(,r10)
>     0x41285978 <_dl_make_fptr+680>: ldw 1fc(,r10),r6
>     0x4128597c <_dl_make_fptr+684>: b,l 0x4128572c <_dl_make_fptr+92>,r0
>     0x41285980 <_dl_make_fptr+688>: stw ret0,1fc(,r10)    <==== return 
> map->l_mach.fptr_table;
>     0x41285984 <_dl_make_fptr+692>: copy r20,r26
>     0x41285988 <_dl_make_fptr+696>: ldw 0(,r20),r20
>     0x4128598c <_dl_make_fptr+700>: b,l 0x412857a0 <_dl_make_fptr+208>,r0
>     0x41285990 <_dl_make_fptr+704>: stw r20,4(,r5)
>     0x41285994 <_dl_make_fptr+708>: stw ret0,0(,r5)
>     0x41285998 <_dl_make_fptr+712>: b,l 0x412857a0 <_dl_make_fptr+208>,r0
>     0x4128599c <_dl_make_fptr+716>: ldo c(ret0),r26
>     0x412859a0 <_dl_make_fptr+720>: b,l 0x41286a04 <munmap>,rp
>     0x412859a4 <_dl_make_fptr+724>: copy r5,r25
>     0x412859a8 <_dl_make_fptr+728>: ldw 1f8(,r10),ret1
>     0x412859ac <_dl_make_fptr+732>: ldw 1fc(,r10),r6
>     0x412859b0 <_dl_make_fptr+736>: b,l 0x4128572c <_dl_make_fptr+92>,r0
>     0x412859b4 <_dl_make_fptr+740>: copy r4,r19
>     0x412859b8 <_dl_make_fptr+744>: addil 0,r4,%r1
>     0x412859bc <_dl_make_fptr+748>: ldw 0(,r16),r26
>     0x412859c0 <_dl_make_fptr+752>: ldw 5c4(,r1),r23
>     0x412859c4 <_dl_make_fptr+756>: ldi 0,r25
>     0x412859c8 <_dl_make_fptr+760>: b,l 0x41280f10 <_dl_signal_error>,rp
>     0x412859cc <_dl_make_fptr+764>: ldi 0,r24
>     0x412859d0 <_dl_make_fptr+768>: addil 0,r19,%r1
>     0x412859d4 <_dl_make_fptr+772>: ldi 0,r26
>     0x412859d8 <_dl_make_fptr+776>: b,l 0x412859c4 <_dl_make_fptr+756>,r0
>     0x412859dc <_dl_make_fptr+780>: ldw 5c8(,r1),r23
>     0x412859e0 <_dl_make_fptr+784>: addil 0,r4,%r1
>     0x412859e4 <_dl_make_fptr+788>: ldw 610(,r1),r20
>     0x412859e8 <_dl_make_fptr+792>: ldw 0(,r20),r26
>     0x412859ec <_dl_make_fptr+796>: addil 0,r4,%r1
>     0x412859f0 <_dl_make_fptr+800>: b,l 0x412859c4 <_dl_make_fptr+756>,r0
> End of assembler dump.
> 
> I have to thought more on how to create a test case (all advise is 
> always well come :) )
> 
> Joel
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
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> > does anybody have a suggestion for a workaround? 
> 
> I'm glad you didn't say "good" work around.  How about just building the
> stub ourselves:
> 
> 3:	ldil	L%2b,%r19
> 	ldo	R%2b(%r19),%r19
> 	bv,n	0(%r19)
> 
> This is certainly more efficient than the linker could ever do since we
> know that even on LP64 the kernel lies under 4GB.

If the branch always uses the same space register, you can shorten the
above sequence to something like:

3:	ldil	L%2b,%r19
	be,n	R%2b(%sr4,%r19)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> [1] The change to using absolute jumps is because gas doesn't want to
> let us take the difference of labels in two different sections (viz.
> .text vs .fixup). jejb and I are not able to come up with a case where
> using relative jumps is required.

Right.  However, there is a way to do 32/64 bit pc-relative offsets.
The table entries need to look like "L$1+(.+8-L$0)-$PIC_pcrel$0".
GAS needs to be reasonably new to support this.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Sep 11, 2004 at 06:49:45PM -0400, John David Anglin wrote:
> > [1] The change to using absolute jumps is because gas doesn't want to
> > let us take the difference of labels in two different sections (viz.
> > .text vs .fixup). jejb and I are not able to come up with a case where
> > using relative jumps is required.
> 
> Right.  However, there is a way to do 32/64 bit pc-relative offsets.
> The table entries need to look like "L$1+(.+8-L$0)-$PIC_pcrel$0".
> GAS needs to be reasonably new to support this.

Interesting.

I thought I needed relative fixups, then I realized I was wrong.

I use exception fixups for LWS on the gateway page, but I can
just fudge the exception entries differently. No big problem
since I have to do a fixed relocation on them anyway.

c.
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On Sun, 2004-09-12 at 09:47, Carlos O'Donell wrote:
> I'm looking through the module loading code and worrying about how
> absolute fixups works when a module needs a fixup?

It should work identically to non-module code ... what specifically is
worrying you?

> How are we handling module fixups with absolute fixup addresses?

The same way we do in the regular kernel ... jump to the absolute
address.

James


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> > I'm looking through the module loading code and worrying about how
> > absolute fixups works when a module needs a fixup?
> 
> It should work identically to non-module code ... what specifically is
> worrying you?

Are relocations generated against the exception table entries?

> The same way we do in the regular kernel ... jump to the absolute
> address.

If relocations are generated against extable entries then all should be
okay. The address will be fixed by the loader and everything is fine.

That was my only worry, Randolph didn't seem to address testing a failed
copy_from_user through a module extable.

My other question about freeing a flag still stands though.

c.

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pa,

Can we have a non-executable stack on PA?

Why or why not?

The only thing that currently comes to mind is that we have return paths
from the signal handler as stack code. This is very easy to fix, just
put the code statically on the gateway page and allow the user to jump
through that back into the kernel.

Any other reasons?

c.

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Subject: Re: [parisc-linux] [RFC] Revamp exception handling in the kernel
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> The patch below, based on my discussions with jejb, changes this
> behaviour so that it more closely matches what happens on other
> architectures (but with a twist...): the exception table entries now
> contain an *absolute* address to branch to for the fixup [1]. The 
> fixups are placed in a separate fixup section (this simplifies a bit of 
> code in unaligned.c too). The fixup code loads up whatever values are 
> required by the caller, and typically branches back to the original 
> code at a correct location to continue.

I'm looking through the module loading code and worrying about how
absolute fixups works when a module needs a fixup?
 
> This frees up the bottom two bits for other purposes -- currently there
> is no way to pass the faulting address and instruction back to an
> exception table handler. The proposal is to reuse the bottom 2 bits to
> indicate whether the faulting address/insn should be passed back to the
> handler in r8/r9. (this will be used by the optimized pa copy routines,
> for example)

I think this is a brilliant proposal. I found the use of r8/r9 a bit
washy and rather useless in the current implementation.

> One downside of this approach is that the extra fixup sections take up
> more space, so the end kernel is bigger. In my test on 64-bit, the
> kernel size increases by ~2%.

What is that converted to bytes?
 
> The patch below has been tested against 2.6.8.1-pa11 on 64-bit-SMP, and
> compile tested on 32-bit-UP. I don't have a 32-bit machine to test on
> atm, so test reports are most welcome [2]. I've applied the manual stubs
> trick that jejb mentioned earlier, but only for 64-bit, since the 32-bit
> linker is able to generate those stubs automatically when needed.
> 
> Comments?

How are we handling module fixups with absolute fixup addresses?

Is there ever a case where you want only the faulting instruction and
not the faulting address aswell? This might be a case for saving a flag,
if you are going to write to r9 you might aswell write two words,
anyway? The code has already locked r8/r9 into variables and gcc won't
do a better job for you.

0x2 = 1 then Write r8/r9 values (slow path)
0x2 = 0 then do nothing (fast path)

Then 0x1 is free to be used for something magical.

c.

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From: James Bottomley <James.Bottomley@SteelEye.com>
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Subject: Re: [parisc-linux] [RFC] Revamp exception handling in the kernel
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On Sun, 2004-09-12 at 10:29, Carlos O'Donell wrote:
> Are relocations generated against the exception table entries?

Yes.  A module is just a normal .o file with a few extra sections.  It
contains all the relocations a .o file usually contains.

> > The same way we do in the regular kernel ... jump to the absolute
> > address.
> 
> If relocations are generated against extable entries then all should be
> okay. The address will be fixed by the loader and everything is fine.
> 
> That was my only worry, Randolph didn't seem to address testing a failed
> copy_from_user through a module extable.
> 
> My other question about freeing a flag still stands though.

I'll let Randolph answer that ... I find thinks like this are sticky;
once you touch them you can never get them off your hands...

James


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> Can we have a non-executable stack on PA?
> 
> Why or why not?

Do you mean on the architecture? Yes, you can. afaik, hpux has a 
non-executable stack.

> The only thing that currently comes to mind is that we have return paths
> from the signal handler as stack code. This is very easy to fix, just
> put the code statically on the gateway page and allow the user to jump
> through that back into the kernel.

do you mean in general, or just in the kernel? do you really mean only
marking the stack non-executable, or also the heap?

We have various bits of trampolines in a number of applications that 
could potentially live on the stack. libffi comes to mind....  and
probably other code that needs to call between languages.

why do you want to do this?  because of the direction our stack grows,
stack overflow protection is not as useful on pa.... not that you cannot
do stack-smashing attacks on pa, of course...

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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> > One downside of this approach is that the extra fixup sections take up
> > more space, so the end kernel is bigger. In my test on 64-bit, the
> > kernel size increases by ~2%.
> 
> What is that converted to bytes?

about 100k for 64-bit. should be significantly less for 32-bit.

> Is there ever a case where you want only the faulting instruction and
> not the faulting address aswell? This might be a case for saving a flag,
> if you are going to write to r9 you might aswell write two words,
> anyway? The code has already locked r8/r9 into variables and gcc won't
> do a better job for you.

actually a nice effect of this patch is that you don't need to lock down
r8 and r9 anymore for the get_user/put_user cases. Potentially any 
register can be used to store the error and result values.

i need to do some experiments to verify this, but after thinking
about it more last night, it seems to me that we don't even need to put
the isr/ior into registers in the fault handler.  the fixup code could 
potentially just look at current->thread.regs.isr/ior directly.

> 0x2 = 1 then Write r8/r9 values (slow path)
> 0x2 = 0 then do nothing (fast path)
> 
> Then 0x1 is free to be used for something magical.

sure, that works too.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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> > What is that converted to bytes?
> 
> about 100k for 64-bit. should be significantly less for 32-bit.

That's quite a bit, but it does make the infrastructure more flexible.
I don't think anyone is going to be building embedded PA systems, but
lets not bloat.
 
> > Is there ever a case where you want only the faulting instruction and
> > not the faulting address aswell? This might be a case for saving a flag,
> > if you are going to write to r9 you might aswell write two words,
> > anyway? The code has already locked r8/r9 into variables and gcc won't
> > do a better job for you.
> 
> actually a nice effect of this patch is that you don't need to lock down
> r8 and r9 anymore for the get_user/put_user cases. Potentially any 
> register can be used to store the error and result values.

I don't see how the fixup code knows which registers to use?

> i need to do some experiments to verify this, but after thinking
> about it more last night, it seems to me that we don't even need to put
> the isr/ior into registers in the fault handler.  the fixup code could 
> potentially just look at current->thread.regs.isr/ior directly.

Yes, that's very true, just fillin those values during the fixup phase.
Then you don't need to use r8/r9 and the flags just become "Yes I care,
please deposit the value" or "No I don't care."

> > 0x2 = 1 then Write r8/r9 values (slow path)
> > 0x2 = 0 then do nothing (fast path)
> > 
> > Then 0x1 is free to be used for something magical.
> 
> sure, that works too.

I'm not sure what we would use the flag for, but it's nice to have it
there. Perhaps we may in the future wish to have absolute and relative
fixups based on the flag? This would reduce the kernel size bloat and
produce faster code again. Technically only the pa_memcpy code is the
only one that would have to enable "absolute" fixups?

c.

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Randolph,

> Do you mean on the architecture? Yes, you can. afaik, hpux has a 
> non-executable stack.

Yes, on the architecture. Ah, if HPUX has it then it makes it feasible.
 
> > The only thing that currently comes to mind is that we have return paths
> > from the signal handler as stack code. This is very easy to fix, just
> > put the code statically on the gateway page and allow the user to jump
> > through that back into the kernel.
> 
> do you mean in general, or just in the kernel? do you really mean only
> marking the stack non-executable, or also the heap?

I'm worried about the following case:

a. You compile your program with gcc, a new toolchain, and it emits
   a PT_GNU_STACK that says the stack shouldn't have prot exec.

b. We rely on the stack having prot exec for a kernel signal return
   path.

These two things are mutually exclusive :(
 
> We have various bits of trampolines in a number of applications that 
> could potentially live on the stack. libffi comes to mind....  and
> probably other code that needs to call between languages.

I think I've seen the following listed reasons:

1. GCC uses executable stacks for function trampolines for nested
   functions?

2. Linux uses executable user stacks for signal handling.

3. Functional programming languages, and some other programs, rely on
   executable stacks for run-time code generation.

The 2. is the only worry I have, gcc should be emitting PT_GNU_STACK
properly for the rest.

> why do you want to do this?  because of the direction our stack grows,
> stack overflow protection is not as useful on pa.... not that you cannot
> do stack-smashing attacks on pa, of course...

Well, technically using PT_GNU_STACK we should already support a marked
stack as non-exec if the toolchain generated the requirement. So when
you compile libffi or weird languages gcc will generate the right heaver
value for PT_GNU_STACK and the kernel does the right thing.

Perhaps what I should say clearly is "we need to move our return
trampolines off the stack."

It also fixes the bug we have with the syscall restart block, where if a
restart is issued while we walk the stack trampoline it will clobber the
previous restart. We never fixed this bug.

c.

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jda,

Oh, I realized today we still have a hole in the way we handle
restartable syscalls. Normally the restarter function is placed in a
function descriptor, a stack trampoline is laid down, the user process
is allowed to return, execute the stack trampoline with the modified
syscall number (indicating restart), upon entry to the kernel the
restart function is executed with arugments. 

The problem is that we should in general disable restartable syscalls as
we walk the userspace return trampoline. If the user took a signal
during the trampoline walk, the signal handler could execute a
restartable syscall, and if that syscall was interrupted, the restorer
function would be changed (there is only one entry for a restorer, they
aren't chained). This means that you technically call the wrong syscall
when you unwind from the signal that you took on the stack trampoline.

If we move stack trampolines to the gateway pagethen signals can't be
delivered to the returning process during the trampoline walk (signals
are not allowed to be delivered for processes on the gateway page). So
it fixes our hole too.

It also allows us to interpret PT_GNU_STACK properly, since the kernel
no longer needs to execute a trampoline on the users stack. The
toolchain can now correctly mark the stack as non-exec.

I only just realized we still had this hole and it might manifest itself
under heavy signal load.

Randolph, comments?
Does this analysis sound correct?

c.

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Xref: news.gmane.org gmane.linux.ports.parisc:21980

> That's quite a bit, but it does make the infrastructure more flexible.
> I don't think anyone is going to be building embedded PA systems, but
> lets not bloat.

yes, that's why i brought it up :)

> > actually a nice effect of this patch is that you don't need to lock down
> > r8 and r9 anymore for the get_user/put_user cases. Potentially any 
> > register can be used to store the error and result values.
> 
> I don't see how the fixup code knows which registers to use?

Consider:

#define __get_user_asm(ldx,ptr)                         \
        __asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
                "2:\n"                                  \
                "\t.section .fixup,\"ax\"\n"            \
                "3:\tldi -14, %1\n"                     \
                "\tcopy %%r0, %0\n"                     \
                FIXUP_BRANCH(2b)                        \
                "\t.previous"                           \
                "\t.section __ex_table,\"aw\"\n"        \
                 "\t.word\t1b,3b\n"                     \
                 "\t.previous"                          \
                : "=r"(__gu_val), "=r"(__gu_err)        \
                : "r"(ptr), "1"(__gu_err));

By the time the fixup is called, we are back into user context. the
ldi/copy will write into whatever registers store __gu_val, __gu_err,
and then branch back to "2:", so essentially this code is
self-contained.  There is no real requirements that __gu_val/__gu_err be
in any special registers.

In the original code, we have to write to r8/r9 inside interruption
context, and have the values survive back to user context.

> > i need to do some experiments to verify this, but after thinking
> > about it more last night, it seems to me that we don't even need to put
> > the isr/ior into registers in the fault handler.  the fixup code could 
> > potentially just look at current->thread.regs.isr/ior directly.
> 
> Yes, that's very true, just fillin those values during the fixup phase.
> Then you don't need to use r8/r9 and the flags just become "Yes I care,
> please deposit the value" or "No I don't care."

nono, you don't fill them up in the fixup phase.

when you have a fault, we already store the ior/isr into the pt_regs
structure. so as long as we are not clobbering those in the interruption
exit path, it will still be accessible in the fixup code.

> I'm not sure what we would use the flag for, but it's nice to have it
> there. Perhaps we may in the future wish to have absolute and relative
> fixups based on the flag? This would reduce the kernel size bloat and
> produce faster code again. Technically only the pa_memcpy code is the
> only one that would have to enable "absolute" fixups?

why do you think absolute fixups take more space?  in fact, absolute
fixup is what might allow us to save space.

the bit that is taking up more space is that the logic that stores
-EFAULT/0 is now duplicated for each get_user/put_user call. For 64-bit
kernels, that's 5 insns per call. In the original implementation, this
logic is centralized in the fault handling code.

possibly, we can create a centralized fixup routine in
arch/parisc/lib/fixup.S that looks like:

    .section .fixup, "ax"
fixup_load_skip_1:
    ldi -14, %r8
    copy %r0, %r9
    mfctl %cr30, %r1
    LDREG 0(%r1), %r1
    LDREG TASK_PT_IOR(%r1), %r1
    ldo 4(%r1), %r1
    bv,n %r0(%r1)

and __get_user_asm() will become

#define __get_user_asm(ldx,ptr)                         \
        __asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
                "2:\n"                                  \
                "\t.section __ex_table,\"aw\"\n"        \
                 "\t.word\t1b,fixup_load_skip_1\n"      \
                 "\t.previous"                          \
                : "=r"(__gu_val), "=r"(__gu_err)        \
                : "r"(ptr), "1"(__gu_err));

similarly we will have fixup_store_skip_1, and for 32-bit we also need
fixup_load_skip_2 and fixup_store_skip_2 for the 64-bit
get_user/put_user calls.

this reintroduces the requirement that __gu_val and __gu_err be in fixed
registers, but the fixup regions don't need to be duplicated, so the
kernel size should become smaller again.

thoughts?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Xref: news.gmane.org gmane.linux.ports.parisc:21981

Hello all,

Continuing investigation:

>> Hello Dave,
>>
>> John David Anglin wrote:
>>
>>>>     0x411cc740 <_dl_make_fptr+112>: ldw,s r7(,r6),ret0
>>>> in:
>>>> r7 == 0x7c4
>>>> r6 == 0x0
>>>
>>>
>>>
>>>
>>> r6 is wrong.  Find out why it is zero.
>>>
>> Far from being an expert, with help of ddd it seems that:
>> ElfW(Addr)
>> _dl_make_fptr (struct link_map *map, const ElfW(Sym) *sym,
>>                ElfW(Addr) ip)
>> {
>>   ElfW(Addr) *ftab = map->l_mach.fptr_table;    <====[2]
>>
[...]
>> the weird stuff his in fact here:
>>
>>   if (__builtin_expect (ftab == NULL, 0))
>>     ftab = make_fptr_table (map);	<================[3]
>>
 >>   symtab = (const void *) D_PTR (map, l_info[DT_SYMTAB]);
 >>   symidx = sym - symtab;    <=========================[1]
 >>
 >>   if (symidx >= map->l_mach.fptr_table_len)
 >>     _dl_signal_error (0, NULL, NULL,
 >>                       N_("internal error: symidx out of range of fptr table"));
 >>
 >>   while (ftab[symidx] == 0)	<========================[4]

Finaly it seems that two things hapened wronly in gcc-3.4 at those tags [3] & [4]:
comparing side by side the asm form of this chunk:

gcc-3.3						| gcc-3.4
=======						| =======
ldw 1fc(,r26),r7				| ldw 1fc(,r26),r6	<====[2]
	ftab == r7 == 0x0			|	ftab == r6 == 0x0
						|
copy r26,r8					|
cmpib,= 0,r7,0x412631a0 <_dl_make_fptr+252>	| cmpib,= 0,r6,0x412858f4 <_dl_make_fptr+548>	<====[3]'call' make_fptr_table()
	r7 == 0x40001000			|	r6 == 0x0
						|
copy r25,r3					| copy r25,r3
ldw 30(,r8),r20					| ldw 1f8(,r26),ret1
ldw 1f8(,r8),r22				| ldw 30(,r10),r21
ldw 4(,r20),r21					| ldw 4(,r21),r20
						|
	r3 == 0x4026d1c4 (== sym)		|	r3 == 0x40037cdc (== sym);
	r21 == 0x40265164 (== symtab)		|	r20 == 0x4003009c (== symtab)
sub r3,r21,r21					| sub r3,r20,r20	<====[1]
	r21 == 0x8060				|	r20 == 0x7c40
						|
extrw,s r21,27,28,r21				| extrw,s r20,27,28,r7
	[== r21 >> 4]				|	[r7 = r20 >> 4]
	r21 == 0x806				|	r7 == 0x7c4
						|
	r22 == 0x813				|	ret1 (aka r29) == 0x7d1 (== map->l_mach.fptr_table_len)
	(r22 == map->l_mach.fptr_table_len)	|	(ret1 == map->l_mach.fptr_table_len)
cmpb,<<= r22,r21,0x41263184 <_dl_make_fptr+224>	| cmpb,>>=,n r7,ret1,0x412859d0 <_dl_make_fptr+768>
depw,z r21,29,30,r9				|
	[r9 = r21 << 2]				|
	r9 == 0x2018				|
						|
add,l r9,r7,r21					|
	r21 == 0x40003018			|
						|
ldw 0(,r21),r20					| ldw,s r7(,r6),ret0	<====[4] (i.e. ftab[symidx])
cmpib,<> 0,r20,0x41263150 <_dl_make_fptr+172>	| cmpib,<> 0,ret0,0x4104aa38 <_dl_make_fptr+248>

Here I agreed that the code could be (assuming that r6 == fatb) ldw,s r7(,r6),ret0 but need at least 'depw,z r7,29,30,r7' before

[...]
ldw 2c(,r26),r21				| ldw 30(,r26),r20	<==== make_fptr_table()
ldw 30(,r26),r20				| ldw 4(,r20),r21
addil 0,r19,%r1					| addil 0,r19,%r1
copy r19,r4					| copy r1,r22
ldw 4(,r20),r22					| ldw 2c(,r26),r20
ldw 4(,r21),r26					| ldw 4(,r20),r26
ldi 3,r24					| sub r26,r21,r26
ldi 12,r23					| ldw 44(,r10),r20
ldw 44(,r8),r21					| ldw 4(,r20),r25
sub r26,r22,r26					| b,l 0x41287d60 <$$divU>,r31
ldw 654(,r1),r1					| copy r19,r4
ldw 4(,r21),r25					| ldi -1,r20
ldw 4(,r1),r20					| stw r20,-34(,sp)
ldi -1,r21					| ldi 0,r26
b,l 0x41265570 <$$divU>,r31			| ldw 638(,r22),r20
sub r0,r20,r22					| ldw 4(,r20),r25
stw r21,-34(,sp)				| depw,z ret1,29,30,r5
ldi 0,r26					| ldi 3,r24
depw,z ret1,29,30,r5				| sub r0,r25,r20
stw r0,-38(,sp)					| copy ret1,r6
copy ret1,r6					| stw r0,-38(,sp)
add,l r5,r20,r20				| add,l r5,r25,r25
add,l r20,r21,r20				| ldi 12,r23
and r20,r22,r20					| ldo -1(r25),r25
b,l 0x412641bc <__mmap>,rp			| b,l 0x412869a8 <__mmap>,rp
copy r20,r25					| and r25,r20,r25
copy r4,r19					| copy r4,r19
cmpib,= -1,ret0,0x4126323c <_dl_make_fptr+408>	| cmpib,= -1,ret0,0x412859e0 <_dl_make_fptr+784>
copy ret0,r26					| copy ret0,r26
						|	(ret0 == 0x40001000)
ldw 1fc(,r8),r20				| ldw 1fc(,r10),r20
cmpib,<>,n 0,r20,0x4126322c <_dl_make_fptr+392>	| cmpib,<>,n 0,r20,0x412859a0 <_dl_make_fptr+720>
						| copy r6,ret1
						|	(ret1 == 0x815)
stw ret0,1fc(,r8)	(a)			| stw r6,1f8(,r10)	(d)
stw r6,1f8(,r8)		(b)			| ldw 1fc(,r10),r6	(e)		<==== ????
b,l 0x412630e0 <_dl_make_fptr+60>,r0		| b,l 0x4128572c <_dl_make_fptr+92>,r0
ldw 1fc(,r8),r7		(c)			| stw ret0,1fc(,r10)	(f)		<==== make_fptr_table()'s return

hmmm here I have the feeling that (d) (e) and (f) were wrongly re-ordered;
if they have the similar order as  (f) (d) and (e), r6 == ftab would be loaded by the right value 0x40001000?

That said I didn't reach to produce a test case reporducing that fact :(
Do you think that if I transmit those explanations (may be a bit completed for gcc-3.3 example) with the precompile (-E) code, it 
could be enough to fill in a br near gcc team?

TIA,
	Joel
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Randolph,

> when you have a fault, we already store the ior/isr into the pt_regs
> structure. so as long as we are not clobbering those in the interruption
> exit path, it will still be accessible in the fixup code.

I worry that the fixup code may trigger another interruption and clobber
those values before it can read them? Any interruption will resave
ior/isr. Perhaps storing them into r8/r9 is still best.

> possibly, we can create a centralized fixup routine in
> arch/parisc/lib/fixup.S that looks like:
> 
>     .section .fixup, "ax"
> fixup_load_skip_1:
>     ldi -14, %r8
>     copy %r0, %r9
>     mfctl %cr30, %r1
>     LDREG 0(%r1), %r1
>     LDREG TASK_PT_IOR(%r1), %r1
>     ldo 4(%r1), %r1
>     bv,n %r0(%r1)
> 
> and __get_user_asm() will become
> 
> #define __get_user_asm(ldx,ptr)                         \
>         __asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
>                 "2:\n"                                  \
>                 "\t.section __ex_table,\"aw\"\n"        \
>                  "\t.word\t1b,fixup_load_skip_1\n"      \
>                  "\t.previous"                          \
>                 : "=r"(__gu_val), "=r"(__gu_err)        \
>                 : "r"(ptr), "1"(__gu_err));
> 
> similarly we will have fixup_store_skip_1, and for 32-bit we also need
> fixup_load_skip_2 and fixup_store_skip_2 for the 64-bit
> get_user/put_user calls.

That would be a brilliant space saver. I take it back, I hand't thought
about interrupting to a generic fixup function for all the
__get_user_asm uses.
 
> this reintroduces the requirement that __gu_val and __gu_err be in fixed
> registers, but the fixup regions don't need to be duplicated, so the
> kernel size should become smaller again.

Implementation?

a. Single generic fixup for all the asm macros (reduce kernel size).
        - Fixes previous quibble that absolute addresses made
          the kernel bigger because asm macros had more insns.
b. Absoulte fixup addresses (allows fixup to be anywhere).
c. Use only one flag in the fixup address to indicate wether
   r8/r9 should be written to with ior/iir or not. 
   Leaving a spare flag for future uses.

Pro:

o Kernel size is smaller.
        - Bonus!
o fixup can be located almost anywhere (absolute address).
        - Bonus!
o Custom code can examine r8/r9 to determine more accurately the 
  faulting situation.
        - Bonus!

Con:

o Generic slow path is a couple more insns slower ;)
        - Regression, no worries.
o Generic fixup always locks r8/r9 into gu_err and gu_val
        - Same as always.

c.

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On Sun, 2004-09-12 at 14:45, Carlos O'Donell wrote:
> The problem is that we should in general disable restartable syscalls as
> we walk the userspace return trampoline. If the user took a signal
> during the trampoline walk, the signal handler could execute a
> restartable syscall, and if that syscall was interrupted, the restorer
> function would be changed (there is only one entry for a restorer, they
> aren't chained). This means that you technically call the wrong syscall
> when you unwind from the signal that you took on the stack trampoline.

If I read this scenario correctly it can only be triggered on an SMP
system (where another user process executing on a different CPU sends a
singnal to this process) or if the process is unlucky enough to take an
interrupt while executing the trampoline ... still, the window exists
and should be plugged

> I only just realized we still had this hole and it might manifest itself
> under heavy signal load.

Precisely, because heavy load usually implies higher disc or network
interrupt load.

James


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> If we move stack trampolines to the gateway pagethen signals can't be
> delivered to the returning process during the trampoline walk (signals
> are not allowed to be delivered for processes on the gateway page). So
> it fixes our hole too.
> 
> It also allows us to interpret PT_GNU_STACK properly, since the kernel
> no longer needs to execute a trampoline on the users stack. The
> toolchain can now correctly mark the stack as non-exec.
> 
> I only just realized we still had this hole and it might manifest itself
> under heavy signal load.

i think the analysis is correct, but i don't like the solution! :-)

various pieces of software (gcc, gdb) need to be able to read and
analyze the signal trampoline for unwinding. putting the trampoline 
onto the gateway page will break these applications, because the 
gateway page is not readable by the user.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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jda,

What kernel is this btw?

> Program terminated with signal 11, Segmentation fault.
> Reading symbols from /usr/lib/debug/libncurses.so.5...done.
> Loaded symbols for /usr/lib/debug/libncurses.so.5
> Reading symbols from /usr/lib/debug/libdl.so.2...done.
> Loaded symbols for /usr/lib/debug/libdl.so.2
> Reading symbols from /usr/lib/debug/libc.so.6...done.
> Loaded symbols for /usr/lib/debug/libc.so.6
> Reading symbols from /lib/ld.so.1...done.
> Loaded symbols for /lib/ld.so.1

Why isn't this the debug ld.so?

> Looking at %r2, it appears that the fault has occurred in an indirect
> call from __strtoll_internal:

But it's always some place different every failure...
 
> It would appear that r3 has either been clobbered by the kernel, or there
> is a problem with the memory access by which it was loaded:

It's possible.
 
> This should have given the r3 value.  The same procedure gave the r6 value.
> (gdb) p/x *(*($r19 + 0x1000 + 0x354) + 0x98)
> $19 = 0x0

So you are saying that the code should have given that value, but
something corrupted the value before it was used?

It definately looks signal related. It feels a lot like some return path
in the kernel might be clobbering r3. Time for another witch hunt?

c.

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Subject: [parisc-linux] [RFC] hppa needs a vDSO? Solves signal trampolines
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> i think the analysis is correct, but i don't like the solution! :-)
> 
> various pieces of software (gcc, gdb) need to be able to read and
> analyze the signal trampoline for unwinding. putting the trampoline 
> onto the gateway page will break these applications, because the 
> gateway page is not readable by the user.

We need a vDSO implementation for hppa, and stick the trampolines into
the vDSO. gdb can still use mprotect on the vDSO mapping created by the
kernel. We can use the powerpc implementation as a reference. I think
it's sorta neat for the kernel to create a virtual DSO that userspace
can leverage. All the ELF rules apply for symbols and you can get all
the debugging info right.

Secondly the vDSO could override the CAS symbol from libc with an LWS
version since it knows that LWS exists. The older code can continue to
call a non-atomic libc version. I'm not quite sure how this works...

c.

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Subject: Re: [parisc-linux] [RFC] Revamp exception handling in the kernel
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Xref: news.gmane.org gmane.linux.ports.parisc:21987

Version 2a of the patch. Changes from the previous version:

- Fixed the comment in uaccess.h, added some more comments to fixup.S
- Added missing r1 clobbers
- addil/ldd should be relative to r27, not r1

i found out this is a somewhat effective way of testing this patch:

- run "make vmlinux" (or make -j4 vmlinux) in one window
- run "while true; do ./wtest; sleep 30; done" in another window

wtest is compiled from:
-------------------8< cut here 8<--------------------
#include <stdio.h>
#include <unistd.h>
#include <errno.h>

int main(int argc, char **argv)
{
        char *buf = (char *)1;
        int ret;

        ret = write(fileno(stdout), buf, 10);
        printf("write returned ret = %d, errno = %d\n", ret, errno);

        return 0;
}

-------------------8< cut here 8<--------------------

patch:

Index: arch/parisc/kernel/asm-offsets.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/asm-offsets.c,v
retrieving revision 1.9
diff -u -p -r1.9 asm-offsets.c
--- arch/parisc/kernel/asm-offsets.c	8 May 2004 14:12:45 -0000	1.9
+++ arch/parisc/kernel/asm-offsets.c	14 Sep 2004 02:34:06 -0000
@@ -38,6 +38,7 @@
 #include <asm/processor.h>
 #include <asm/hardirq.h>
 #include <asm/pdc.h>
+#include <asm/uaccess.h>
 
 #define DEFINE(sym, val) \
 	asm volatile("\n->" #sym " %0 " #val : : "i" (val))
@@ -291,5 +292,8 @@ int main(void)
 	DEFINE(ASM_PT_INITIAL, PT_INITIAL);
 	DEFINE(ASM_PAGE_SIZE, PAGE_SIZE);
 	BLANK();
+	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
+	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
+	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
 	return 0;
 }
Index: arch/parisc/kernel/syscall.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/syscall.S,v
retrieving revision 1.14
diff -u -p -r1.14 syscall.S
--- arch/parisc/kernel/syscall.S	10 Sep 2004 14:52:01 -0000	1.14
+++ arch/parisc/kernel/syscall.S	14 Sep 2004 02:34:06 -0000
@@ -29,6 +29,19 @@
 #else
 	.level		1.1
 #endif
+
+#ifndef __LP64__
+	.macro fixup_branch,lbl
+	b	    \lbl
+	.endm
+#else
+	.macro fixup_branch,lbl
+	ldil	    L%\lbl, %r1
+	ldo	    R%\lbl(%r1), %r1
+	bv,n        %r0(%r1)
+	.endm
+#endif
+
 	.text
 
 	.import syscall_exit,code
@@ -575,10 +588,8 @@ cas_action:
 	/* Return to userspace, set no error */
 	b	lws_exit
 	copy	%r0, %r21
-	nop	/* Add some visual space in objdump */
-	nop
-	nop
-	nop
+
+	.section .fixup,"ax"
 3:		
 	/* Error occured on load or store */
 #ifdef CONFIG_SMP
@@ -588,12 +599,13 @@ cas_action:
 	stw	%r0, 4(%sr2,%r20)
 # endif
 #endif
-	b	lws_exit
+	fixup_branch lws_exit
 	ldo	-EFAULT(%r0),%r21	/* set errno */
 	nop
 	nop
 	nop
 	nop
+	.previous
 
 	/* Two exception table entries, one for the load,
 	   the other for the store. Either return -EFAULT */
@@ -601,10 +613,10 @@ cas_action:
 #ifdef __LP64__
 	/* Pad the address calculation */
 	.word	0,(2b - linux_gateway_page)
-	.dword	(3b - 2b) 
+	.dword	3b
 #else
 	.word	2b - linux_gateway_page
-	.word	(3b - 2b) 
+	.word	3b
 #endif
 	.previous
 
@@ -612,10 +624,10 @@ cas_action:
 #ifdef __LP64__
 	/* Pad the address calculation */
 	.word	0,(1b - linux_gateway_page)
-	.dword	(3b - 1b) 
+	.dword	3b
 #else
 	.word	1b - linux_gateway_page
-	.word	(3b - 1b) 
+	.word	3b
 #endif
 	.previous
 
Index: arch/parisc/kernel/unaligned.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/unaligned.c,v
retrieving revision 1.8
diff -u -p -r1.8 unaligned.c
--- arch/parisc/kernel/unaligned.c	21 Aug 2004 06:19:33 -0000	1.8
+++ arch/parisc/kernel/unaligned.c	14 Sep 2004 02:34:06 -0000
@@ -23,6 +23,7 @@
 #include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <asm/uaccess.h>
 
 /* #define DEBUG_UNALIGNED 1 */
 
@@ -34,8 +35,14 @@
 
 #ifdef __LP64__
 #define RFMT "%016lx"
+#define FIXUP_BRANCH(lbl) \
+	"\tb " #lbl "\n"
 #else
 #define RFMT "%08lx"
+#define FIXUP_BRANCH(lbl) \
+	"\tldil L%%" #lbl ", %%r1\n"			\
+	"\tldo R%%" #lbl "(%%r1), %%r1\n"		\
+	"\tbv,n %%r0(%%r1)\n"
 #endif
 
 /* 1111 1100 0000 0000 0001 0011 1100 0000 */
@@ -134,15 +141,19 @@ static int emulate_ldh(struct pt_regs *r
 "1:	ldbs	0(%%sr1,%3), %%r20\n"
 "2:	ldbs	1(%%sr1,%3), %0\n"
 "	depw	%%r20, 23, 24, %0\n"
-"	cmpclr,= %%r0, %%r0, %1\n"
-"3:	ldo	-2(%%r0), %1\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %1\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %1\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (val), "=r" (ret)
@@ -175,15 +186,19 @@ static int emulate_ldw(struct pt_regs *r
 "	subi	32,%%r19,%%r19\n"
 "	mtctl	%%r19,11\n"
 "	vshd	%0,%%r20,%0\n"
-"	cmpclr,= %%r0, %%r0, %1\n"
-"3:	ldo	-2(%%r0), %1\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %1\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %1\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (val), "=r" (ret)
@@ -222,15 +237,19 @@ static int emulate_ldd(struct pt_regs *r
 "	subi	64,%%r19,%%r19\n"
 "	mtsar	%%r19\n"
 "	shrpd	%0,%%r20,%%sar,%0\n"
-"	cmpclr,= %%r0, %%r0, %1\n"
-"3:	ldo	-2(%%r0), %1\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %1\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %1\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (val), "=r" (ret)
@@ -250,17 +269,20 @@ static int emulate_ldd(struct pt_regs *r
 "	mtsar	%%r19\n"
 "	vshd	%0,%1,%0\n"
 "	vshd	%1,%%r20,%1\n"
-"	cmpclr,= %%r0, %%r0, %2\n"
-"4:	ldo	-2(%%r0), %2\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %2\n"
+"4:	\n"
+"	.section .fixup,\"ax\"\n"
+"5:	ldi	-2, %2\n"
+	FIXUP_BRANCH(4b)
+"	.previous\n"
 #ifdef __LP64__
-"	.dword	1b,(4b-1b)\n"
-"	.dword  2b,(4b-2b)\n"
-"	.dword	3b,(4b-3b)\n"
-#else
-"	.word	1b,(4b-1b)\n"
-"	.word	2b,(4b-2b)\n"
-"	.word	3b,(4b-3b)\n"
+"	.dword	1b,5b\n"
+"	.dword  2b,5b\n"
+"	.dword	3b,5b\n"
+#else
+"	.word	1b,5b\n"
+"	.word	2b,5b\n"
+"	.word	3b,5b\n"
 #endif
 "	.previous\n"
 	: "=r" (valh), "=r" (vall), "=r" (ret)
@@ -296,15 +318,19 @@ static int emulate_sth(struct pt_regs *r
 "	extrw,u %1, 23, 8, %%r19\n"
 "1:	stb %1, 1(%%sr1, %2)\n"
 "2:	stb %%r19, 0(%%sr1, %2)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"3:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %0\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
@@ -346,15 +372,19 @@ static int emulate_stw(struct pt_regs *r
 "	or	%%r1, %%r21, %%r21\n"
 "	stw	%%r20,0(%%sr1,%2)\n"
 "	stw	%%r21,4(%%sr1,%2)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"3:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %0\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
@@ -399,19 +429,23 @@ static int emulate_std(struct pt_regs *r
 "	or	%%r1, %%r21, %%r21\n"
 "3:	std	%%r20,0(%%sr1,%2)\n"
 "4:	std	%%r21,8(%%sr1,%2)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"5:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"5:	\n"
+"	.section .fixup,\"ax\"\n"
+"6:	ldi	-2, %0\n"
+	FIXUP_BRANCH(5b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(5b-1b)\n"
-"	.dword  2b,(5b-2b)\n"
-"	.dword	3b,(5b-3b)\n"
-"	.dword  4b,(5b-4b)\n"
-#else
-"	.word	1b,(5b-1b)\n"
-"	.word	2b,(5b-2b)\n"
-"	.word	3b,(5b-3b)\n"
-"	.word	4b,(5b-4b)\n"
+"	.dword	1b,6b\n"
+"	.dword  2b,6b\n"
+"	.dword	3b,6b\n"
+"	.dword  4b,6b\n"
+#else
+"	.word	1b,6b\n"
+"	.word	2b,6b\n"
+"	.word	3b,6b\n"
+"	.word	4b,6b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
@@ -438,21 +472,25 @@ static int emulate_std(struct pt_regs *r
 "3:	stw	%1,0(%%sr1,%1)\n"
 "4:	stw	%%r1,4(%%sr1,%3)\n"
 "5:	stw	%2,8(%%sr1,%3)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"6:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"6:	\n"
+"	.section .fixup,\"ax\"\n"
+"7:	ldi	-2, %0\n"
+	FIXUP_BRANCH(6b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(6b-1b)\n"
-"	.dword  2b,(6b-2b)\n"
-"	.dword	3b,(6b-3b)\n"
-"	.dword  4b,(6b-4b)\n"
-"	.dword  5b,(6b-5b)\n"
-#else
-"	.word	1b,(6b-1b)\n"
-"	.word	2b,(6b-2b)\n"
-"	.word	3b,(6b-3b)\n"
-"	.word	4b,(6b-4b)\n"
-"	.word  	5b,(6b-5b)\n"
+"	.dword	1b,7b\n"
+"	.dword  2b,7b\n"
+"	.dword	3b,7b\n"
+"	.dword  4b,7b\n"
+"	.dword  5b,7b\n"
+#else
+"	.word	1b,7b\n"
+"	.word	2b,7b\n"
+"	.word	3b,7b\n"
+"	.word	4b,7b\n"
+"	.word  	5b,7b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
Index: arch/parisc/lib/Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/lib/Makefile,v
retrieving revision 1.2
diff -u -p -r1.2 Makefile
--- arch/parisc/lib/Makefile	1 Jul 2004 18:30:36 -0000	1.2
+++ arch/parisc/lib/Makefile	14 Sep 2004 02:34:06 -0000
@@ -2,6 +2,6 @@
 # Makefile for parisc-specific library files
 #
 
-lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o
+lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o fixup.o
 
 lib-$(CONFIG_SMP) += debuglocks.o
Index: arch/parisc/lib/fixup.S
===================================================================
RCS file: arch/parisc/lib/fixup.S
diff -N arch/parisc/lib/fixup.S
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ arch/parisc/lib/fixup.S	14 Sep 2004 02:34:06 -0000
@@ -0,0 +1,89 @@
+/*
+ * Linux/PA-RISC Project (http://www.parisc-linux.org/)
+ *
+ *  Copyright (C) 2004  Randolph Chung <tausq@debian.org>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2, or (at your option)
+ *    any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 
+ * Fixup routines for kernel exception handling.
+ */
+#include <linux/config.h>
+#include <asm/offsets.h>
+#include <asm/assembly.h>
+#include <asm/errno.h>
+
+#ifdef CONFIG_SMP
+	.macro  get_fault_ip t1 t2
+	addil LT%__per_cpu_offset,%r27
+	LDREG RT%__per_cpu_offset(%r1),\t1
+	/* t2 = smp_processor_id() */
+	mfctl 30,\t2
+	ldw TI_CPU(\t2),\t2
+#ifdef __LP64__
+	extrd,u \t2,63,32,\t2
+#endif
+	/* t2 = &__per_cpu_offset[smp_processor_id()]; */
+	LDREG,s \t2(\t1),\t2 
+	addil LT%per_cpu__exception_data,%r27
+	LDREG RT%per_cpu__exception_data(%r1),\t1
+	/* t1 = &__get_cpu_var(exception_data) */
+	add,l \t1,\t2,\t1
+	/* t1 = t1->fault_ip */
+	LDREG EXCDATA_IP(\t1), \t1
+	.endm
+#else
+	.macro  get_fault_ip t1 t2
+	/* t1 = &__get_cpu_var(exception_data) */
+	addil LT%per_cpu__exception_data,%r27
+	LDREG RT%per_cpu__exception_data(%r1),\t2
+	/* t1 = t2->fault_ip */
+	LDREG EXCDATA_IP(\t2), \t1
+	.endm
+#endif
+
+	.text
+	.section .fixup, "ax"
+
+	/* get_user() fixups, store -EFAULT in r8, and 0 in r9 */
+	.export fixup_get_user_skip_1
+fixup_get_user_skip_1:
+	get_fault_ip %r1,%r8
+	ldo 4(%r1), %r1
+	ldi -EFAULT, %r8
+	bv %r0(%r1)
+	copy %r0, %r9
+
+	.export fixup_get_user_skip_2
+fixup_get_user_skip_2:
+	get_fault_ip %r1,%r8
+	ldo 8(%r1), %r1
+	ldi -EFAULT, %r8
+	bv %r0(%r1)
+	copy %r0, %r9
+
+	/* put_user() fixups, store -EFAULT in r8 */
+	.export fixup_put_user_skip_1
+fixup_put_user_skip_1:
+	get_fault_ip %r1,%r8
+	ldo 4(%r1), %r1
+	bv %r0(%r1)
+	ldi -EFAULT, %r8
+
+	.export fixup_put_user_skip_2
+fixup_put_user_skip_2:
+	get_fault_ip %r1,%r8
+	ldo 8(%r1), %r1
+	bv %r0(%r1)
+	ldi -EFAULT, %r8
Index: arch/parisc/lib/lusercopy.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/lib/lusercopy.S,v
retrieving revision 1.3
diff -u -p -r1.3 lusercopy.S
--- arch/parisc/lib/lusercopy.S	17 Jan 2004 06:39:24 -0000	1.3
+++ arch/parisc/lib/lusercopy.S	14 Sep 2004 02:34:06 -0000
@@ -53,6 +53,18 @@
 	mtsp        %r1,%sr1
 	.endm
 
+#ifndef __LP64__
+	.macro fixup_branch lbl
+	b	    \lbl
+	.endm
+#else
+	.macro fixup_branch lbl
+	ldil	    L%\lbl, %r1
+	ldo	    R%\lbl(%r1), %r1
+	bv,n        %r0(%r1)
+	.endm
+#endif
+
 	/*
 	 * unsigned long
 	 * lcopy_to_user(void *to, const void *from, unsigned long n)
@@ -77,14 +89,16 @@ $lctu_done:
 	copy        %r24,%r28
 	.exit
 
-2:      b $lctu_done
+	.section .fixup,"ax"
+2:      fixup_branch $lctu_done
 	ldo         1(%r24),%r24
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -118,18 +132,20 @@ $lcfu_done:
 	copy        %r24,%r28
 	.exit
 
+	.section .fixup,"ax"
 2:      copy        %r24,%r23
 $lcfu_zero_loop:
 	addib,<>    -1,%r23,$lcfu_zero_loop
 	stbs,ma     %r0,1(%r26)
-	b           $lcfu_done
+	fixup_branch $lcfu_done
 	nop
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -159,14 +175,16 @@ $lciu_done:
 	copy        %r24,%r28
 	.exit
 
-2:      b $lciu_done
+	.section .fixup,"ax"
+2:      fixup_branch $lciu_done
 	ldo         1(%r24),%r24
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -201,16 +219,18 @@ $lsfu_exit:
 	nop
 	.exit
 
-3:      b           $lsfu_exit
+	.section .fixup,"ax"
+3:      fixup_branch $lsfu_exit
 	ldi         -EFAULT,%r28
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(3b-1b)
-	.dword      2b,(3b-2b)
+	.dword      1b,3b
+	.dword      2b,3b
 #else
-	.word       1b,(3b-1b)
-	.word       2b,(3b-2b)
+	.word       1b,3b
+	.word       2b,3b
 #endif
 	.previous
 
@@ -239,14 +259,16 @@ $lclu_done:
 	copy        %r25,%r28
 	.exit
 
-2:      b $lclu_done
+	.section .fixup,"ax"
+2:      fixup_branch $lclu_done
 	ldo        1(%r25),%r25
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -282,16 +304,18 @@ $lslen_nzero:
 	b           $lslen_done
 	ldo         1(%r26),%r26 /* special case for N == 0 */
 
-3:      b           $lslen_done
+	.section .fixup,"ax"
+3:      fixup_branch $lslen_done
 	copy        %r24,%r26    /* reset r26 so 0 is returned on fault */
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(3b-1b)
-	.dword      2b,(3b-2b)
+	.dword      1b,3b
+	.dword      2b,3b
 #else
-	.word       1b,(3b-1b)
-	.word       2b,(3b-2b)
+	.word       1b,3b
+	.word       2b,3b
 #endif
 	.previous
 
Index: arch/parisc/mm/fault.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/mm/fault.c,v
retrieving revision 1.1
diff -u -p -r1.1 fault.c
--- arch/parisc/mm/fault.c	29 Jul 2003 17:00:42 -0000	1.1
+++ arch/parisc/mm/fault.c	14 Sep 2004 02:34:06 -0000
@@ -36,6 +36,9 @@
 
 #define BITSSET		0x1c0	/* for identifying LDCW */
 
+
+DEFINE_PER_CPU(struct exception_data, exception_data);
+
 /*
  * parisc_acctyp(unsigned int inst) --
  *    Given a PA-RISC memory access instruction, determine if the
@@ -234,13 +237,16 @@ no_context:
 		fix = search_exception_tables(regs->iaoq[0]);
 
 		if (fix) {
+			struct exception_data *d;
+
+printk("applying fixup for 0x%lx, fixup at 0x%lx\n", regs->iaoq[0], fix->fixup & ~3);
 
-			if (fix->skip & 1) 
-				regs->gr[8] = -EFAULT;
-			if (fix->skip & 2)
-				regs->gr[9] = 0;
+			d = &__get_cpu_var(exception_data);
+			d->fault_ip = regs->iaoq[0];
+			d->fault_space = regs->isr;
+			d->fault_addr = regs->ior;
 
-			regs->iaoq[0] += ((fix->skip) & ~3);
+			regs->iaoq[0] = ((fix->fixup) & ~3);
 
 			/*
 			 * NOTE: In some cases the faulting instruction
Index: include/asm-parisc/uaccess.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/uaccess.h,v
retrieving revision 1.13
diff -u -p -r1.13 uaccess.h
--- include/asm-parisc/uaccess.h	4 Feb 2004 18:24:55 -0000	1.13
+++ include/asm-parisc/uaccess.h	14 Sep 2004 02:34:28 -0000
@@ -54,16 +54,22 @@ extern int __put_user_bad(void);
 /*
  * The exception table contains two values: the first is an address
  * for an instruction that is allowed to fault, and the second is
- * the number of bytes to skip if a fault occurs. We also support in
- * two bit flags: 0x2 tells the exception handler to clear register
- * r9 and 0x1 tells the exception handler to put -EFAULT in r8.
- * This allows us to handle the simple cases for put_user and
- * get_user without having to have .fixup sections.
+ * the address to the fixup routine. 
  */
 
 struct exception_table_entry {
 	unsigned long insn;  /* address of insn that is allowed to fault.   */
-	long skip;           /* pcoq skip | r9 clear flag | r8 -EFAULT flag */
+	long fixup;          /* fixup routine */
+};
+
+/*
+ * The page fault handler stores, in a per-cpu area, the following information
+ * if a fixup routine is available.
+ */
+struct exception_data {
+	unsigned long fault_ip;
+	unsigned long fault_space;
+	unsigned long fault_addr;
 };
 
 #define __get_user(x,ptr)                               \
@@ -97,48 +103,44 @@ struct exception_table_entry {
 #ifdef __LP64__
 #define __get_kernel_asm(ldx,ptr)                       \
 	__asm__("\n1:\t" ldx "\t0(%2),%0\n"             \
-		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.dword\t1b\n"                       \
-		 "\t.dword\t(2b-1b)+3\n"                \
-		 "\t.previous"                          \
+		"\t.section __ex_table,\"aw\"\n"        \
+		"\t.dword\t1b,fixup_get_user_skip_1\n"	\
+		"\t.previous"                          	\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err));
+		: "r"(ptr), "1"(__gu_err)		\
+		: "r1");
 
 #define __get_user_asm(ldx,ptr)                         \
 	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
-		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.dword\t1b\n"                       \
-		 "\t.dword\t(2b-1b)+3\n"                \
-		 "\t.previous"                          \
+		"\t.section __ex_table,\"aw\"\n"	\
+		"\t.dword\t1b,fixup_get_user_skip_1\n"	\
+		"\t.previous"				\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err));
+		: "r"(ptr), "1"(__gu_err)		\
+		: "r1");
 #else
 #define __get_kernel_asm(ldx,ptr)                       \
 	__asm__("\n1:\t" ldx "\t0(%2),%0\n"             \
-		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.word\t1b\n"                        \
-		 "\t.word\t(2b-1b)+3\n"                 \
-		 "\t.previous"                          \
+		"\t.section __ex_table,\"aw\"\n"        \
+		"\t.word\t1b,fixup_get_user_skip_1\n"	\
+		"\t.previous"                          	\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err));
+		: "r"(ptr), "1"(__gu_err)		\
+		: "r1");
 
 #define __get_user_asm(ldx,ptr)                         \
 	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
-		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.word\t1b\n"                        \
-		 "\t.word\t(2b-1b)+3\n"                 \
+		"\t.section __ex_table,\"aw\"\n"	\
+		 "\t.word\t1b,fixup_get_user_skip_1\n"	\
 		 "\t.previous"                          \
 		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err));
+		: "r"(ptr), "1"(__gu_err)		\
+		: "r1");
 #endif /* !__LP64__ */
 
 #define __put_user(x,ptr)                                       \
 ({								\
-	register long __pu_err __asm__ ("r8") = 0;		\
+	register long __pu_err __asm__ ("r8") = 0;      	\
 								\
 	if (segment_eq(get_fs(),KERNEL_DS)) {                   \
 	    switch (sizeof(*(ptr))) {                           \
@@ -172,82 +174,73 @@ struct exception_table_entry {
 #define __put_kernel_asm(stx,x,ptr)                         \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%1)\n"                 \
-		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.dword\t1b\n"                           \
-		 "\t.dword\t(2b-1b)+1\n"                    \
-		 "\t.previous"                              \
+		"\t.section __ex_table,\"aw\"\n"            \
+		"\t.dword\t1b,fixup_put_user_skip_1\n"	    \
+		"\t.previous"                               \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
 
 #define __put_user_asm(stx,x,ptr)                           \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
-		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.dword\t1b\n"                           \
-		 "\t.dword\t(2b-1b)+1\n"                    \
+		"\t.section __ex_table,\"aw\"\n"            \
+		 "\t.dword\t1b,fixup_put_user_skip_1\n"	    \
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err))
+		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
+		: "r1")
 #else
 #define __put_kernel_asm(stx,x,ptr)                         \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%1)\n"                 \
-		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.word\t1b\n"                            \
-		 "\t.word\t(2b-1b)+1\n"                     \
+		"\t.section __ex_table,\"aw\"\n"            \
+		 "\t.word\t1b,fixup_put_user_skip_1\n"	    \
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err))
+		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
+		: "r1")
 
 #define __put_user_asm(stx,x,ptr)                           \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
-		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.word\t1b\n"                            \
-		 "\t.word\t(2b-1b)+1\n"                     \
+		"\t.section __ex_table,\"aw\"\n"            \
+		 "\t.word\t1b,fixup_put_user_skip_1\n"      \
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err))
+		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
+		: "r1")
 
-static inline void __put_kernel_asm64(u64 x, void *ptr)
-{
-	u32 hi = x>>32;
-	u32 lo = x&0xffffffff;
-	__asm__ __volatile__ (
-		"\n1:\tstw %1,0(%0)\n"
-		"\n2:\tstw %2,4(%0)\n"
-		"3:\n"
-		"\t.section __ex_table,\"aw\"\n"
-		 "\t.word\t1b\n"
-		 "\t.word\t(3b-1b)+1\n"
-		 "\t.word\t2b\n"
-		 "\t.word\t(3b-2b)+1\n"
-		 "\t.previous"
-		: : "r"(ptr), "r"(hi), "r"(lo));
-
-}
-
-static inline void __put_user_asm64(u64 x, void *ptr)
-{
-	u32 hi = x>>32;
-	u32 lo = x&0xffffffff;
-	__asm__ __volatile__ (
-		"\n1:\tstw %1,0(%%sr3,%0)\n"
-		"\n2:\tstw %2,4(%%sr3,%0)\n"
-		"3:\n"
-		"\t.section __ex_table,\"aw\"\n"
-		 "\t.word\t1b\n"
-		 "\t.word\t(3b-1b)+1\n"
-		 "\t.word\t2b\n"
-		 "\t.word\t(3b-2b)+1\n"
-		 "\t.previous"
-		: : "r"(ptr), "r"(hi), "r"(lo));
-
-}
+#define __put_kernel_asm64(_x,ptr) do {		    	    \
+	u64 x = (u64)_x;				    \
+	u32 hi = x>>32;					    \
+	u32 lo = x&0xffffffff;				    \
+	__asm__ __volatile__ (				    \
+		"\n1:\tstw %2,0(%1)\n"			    \
+		"\n2:\tstw %3,4(%1)\n"			    \
+		"\t.section __ex_table,\"aw\"\n"	    \
+		 "\t.word\t1b,fixup_put_user_skip_2\n"	    \
+		 "\t.word\t2b,fixup_put_user_skip_1\n"	    \
+		 "\t.previous"				    \
+		: "=r"(__pu_err)                            \
+		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
+		: "r1");				    \
+} while (0)
+
+#define __put_user_asm64(_x,ptr) do {		    	    \
+	u64 x = (u64)_x;				    \
+	u32 hi = x>>32;					    \
+	u32 lo = x&0xffffffff;				    \
+	__asm__ __volatile__ (				    \
+		"\n1:\tstw %2,0(%%sr3,%1)\n"		    \
+		"\n2:\tstw %3,4(%%sr3,%1)\n"		    \
+		"\t.section __ex_table,\"aw\"\n"	    \
+		 "\t.word\t1b,fixup_get_user_skip_2\n"	    \
+		 "\t.word\t2b,fixup_get_user_skip_1\n"	    \
+		 "\t.previous"				    \
+		: "=r"(__pu_err)                            \
+		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
+		: "r1");				    \
+} while (0)
 
 #endif /* !__LP64__ */
 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
_______________________________________________
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parisc-linux@lists.parisc-linux.org
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Subject: Re: [parisc-linux] [RFC] Revamp exception handling in the kernel
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Xref: news.gmane.org gmane.linux.ports.parisc:21988

Version 2 of the patch. Changes from the previous version:

- Uses centralized exception handling for get_user/put_user
- Uses per-cpu variables to store the fault ip, fault space and fault
  address (not controlled by a flag)
- 64-bit get_user/put_user for 32-bit kernels is a bit broken in the old
  code. this contains a fix for that as well.

Tested against 2.6.8.1-pa11 for 64-UP and 64-SMP

jejb asked me why we don't do the fixup in C code. It seems to me that
in order to do that, we will need to mark all the caller-saved registers
as clobbered by get_user/put_user. That may cause a large amount of
register spills across those calls, even for non-faulting cases. 
But the alternative (as implemented below) is some rather nasty-looking
asm code in the fixup handler. A third alternative might be for the 
fixup handler to create a stack frame and save/restore caller-saved 
registers across a call to a C-code handler. seems like a lot of 
work....

Thoughts?

randolph


Index: arch/parisc/kernel/asm-offsets.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/asm-offsets.c,v
retrieving revision 1.9
diff -u -p -r1.9 asm-offsets.c
--- arch/parisc/kernel/asm-offsets.c	8 May 2004 14:12:45 -0000	1.9
+++ arch/parisc/kernel/asm-offsets.c	13 Sep 2004 23:31:46 -0000
@@ -38,6 +38,7 @@
 #include <asm/processor.h>
 #include <asm/hardirq.h>
 #include <asm/pdc.h>
+#include <asm/uaccess.h>
 
 #define DEFINE(sym, val) \
 	asm volatile("\n->" #sym " %0 " #val : : "i" (val))
@@ -291,5 +292,8 @@ int main(void)
 	DEFINE(ASM_PT_INITIAL, PT_INITIAL);
 	DEFINE(ASM_PAGE_SIZE, PAGE_SIZE);
 	BLANK();
+	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
+	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
+	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
 	return 0;
 }
Index: arch/parisc/kernel/syscall.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/syscall.S,v
retrieving revision 1.14
diff -u -p -r1.14 syscall.S
--- arch/parisc/kernel/syscall.S	10 Sep 2004 14:52:01 -0000	1.14
+++ arch/parisc/kernel/syscall.S	13 Sep 2004 23:31:46 -0000
@@ -29,6 +29,19 @@
 #else
 	.level		1.1
 #endif
+
+#ifndef __LP64__
+	.macro fixup_branch,lbl
+	b	    \lbl
+	.endm
+#else
+	.macro fixup_branch,lbl
+	ldil	    L%\lbl, %r1
+	ldo	    R%\lbl(%r1), %r1
+	bv,n        %r0(%r1)
+	.endm
+#endif
+
 	.text
 
 	.import syscall_exit,code
@@ -575,10 +588,8 @@ cas_action:
 	/* Return to userspace, set no error */
 	b	lws_exit
 	copy	%r0, %r21
-	nop	/* Add some visual space in objdump */
-	nop
-	nop
-	nop
+
+	.section .fixup,"ax"
 3:		
 	/* Error occured on load or store */
 #ifdef CONFIG_SMP
@@ -588,12 +599,13 @@ cas_action:
 	stw	%r0, 4(%sr2,%r20)
 # endif
 #endif
-	b	lws_exit
+	fixup_branch lws_exit
 	ldo	-EFAULT(%r0),%r21	/* set errno */
 	nop
 	nop
 	nop
 	nop
+	.previous
 
 	/* Two exception table entries, one for the load,
 	   the other for the store. Either return -EFAULT */
@@ -601,10 +613,10 @@ cas_action:
 #ifdef __LP64__
 	/* Pad the address calculation */
 	.word	0,(2b - linux_gateway_page)
-	.dword	(3b - 2b) 
+	.dword	3b
 #else
 	.word	2b - linux_gateway_page
-	.word	(3b - 2b) 
+	.word	3b
 #endif
 	.previous
 
@@ -612,10 +624,10 @@ cas_action:
 #ifdef __LP64__
 	/* Pad the address calculation */
 	.word	0,(1b - linux_gateway_page)
-	.dword	(3b - 1b) 
+	.dword	3b
 #else
 	.word	1b - linux_gateway_page
-	.word	(3b - 1b) 
+	.word	3b
 #endif
 	.previous
 
Index: arch/parisc/kernel/unaligned.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/unaligned.c,v
retrieving revision 1.8
diff -u -p -r1.8 unaligned.c
--- arch/parisc/kernel/unaligned.c	21 Aug 2004 06:19:33 -0000	1.8
+++ arch/parisc/kernel/unaligned.c	13 Sep 2004 23:31:46 -0000
@@ -23,6 +23,7 @@
 #include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <asm/uaccess.h>
 
 /* #define DEBUG_UNALIGNED 1 */
 
@@ -34,8 +35,14 @@
 
 #ifdef __LP64__
 #define RFMT "%016lx"
+#define FIXUP_BRANCH(lbl) \
+	"\tb " #lbl "\n"
 #else
 #define RFMT "%08lx"
+#define FIXUP_BRANCH(lbl) \
+	"\tldil L%%" #lbl ", %%r1\n"			\
+	"\tldo R%%" #lbl "(%%r1), %%r1\n"		\
+	"\tbv,n %%r0(%%r1)\n"
 #endif
 
 /* 1111 1100 0000 0000 0001 0011 1100 0000 */
@@ -134,15 +141,19 @@ static int emulate_ldh(struct pt_regs *r
 "1:	ldbs	0(%%sr1,%3), %%r20\n"
 "2:	ldbs	1(%%sr1,%3), %0\n"
 "	depw	%%r20, 23, 24, %0\n"
-"	cmpclr,= %%r0, %%r0, %1\n"
-"3:	ldo	-2(%%r0), %1\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %1\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %1\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (val), "=r" (ret)
@@ -175,15 +186,19 @@ static int emulate_ldw(struct pt_regs *r
 "	subi	32,%%r19,%%r19\n"
 "	mtctl	%%r19,11\n"
 "	vshd	%0,%%r20,%0\n"
-"	cmpclr,= %%r0, %%r0, %1\n"
-"3:	ldo	-2(%%r0), %1\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %1\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %1\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (val), "=r" (ret)
@@ -222,15 +237,19 @@ static int emulate_ldd(struct pt_regs *r
 "	subi	64,%%r19,%%r19\n"
 "	mtsar	%%r19\n"
 "	shrpd	%0,%%r20,%%sar,%0\n"
-"	cmpclr,= %%r0, %%r0, %1\n"
-"3:	ldo	-2(%%r0), %1\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %1\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %1\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (val), "=r" (ret)
@@ -250,17 +269,20 @@ static int emulate_ldd(struct pt_regs *r
 "	mtsar	%%r19\n"
 "	vshd	%0,%1,%0\n"
 "	vshd	%1,%%r20,%1\n"
-"	cmpclr,= %%r0, %%r0, %2\n"
-"4:	ldo	-2(%%r0), %2\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %2\n"
+"4:	\n"
+"	.section .fixup,\"ax\"\n"
+"5:	ldi	-2, %2\n"
+	FIXUP_BRANCH(4b)
+"	.previous\n"
 #ifdef __LP64__
-"	.dword	1b,(4b-1b)\n"
-"	.dword  2b,(4b-2b)\n"
-"	.dword	3b,(4b-3b)\n"
-#else
-"	.word	1b,(4b-1b)\n"
-"	.word	2b,(4b-2b)\n"
-"	.word	3b,(4b-3b)\n"
+"	.dword	1b,5b\n"
+"	.dword  2b,5b\n"
+"	.dword	3b,5b\n"
+#else
+"	.word	1b,5b\n"
+"	.word	2b,5b\n"
+"	.word	3b,5b\n"
 #endif
 "	.previous\n"
 	: "=r" (valh), "=r" (vall), "=r" (ret)
@@ -296,15 +318,19 @@ static int emulate_sth(struct pt_regs *r
 "	extrw,u %1, 23, 8, %%r19\n"
 "1:	stb %1, 1(%%sr1, %2)\n"
 "2:	stb %%r19, 0(%%sr1, %2)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"3:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %0\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
@@ -346,15 +372,19 @@ static int emulate_stw(struct pt_regs *r
 "	or	%%r1, %%r21, %%r21\n"
 "	stw	%%r20,0(%%sr1,%2)\n"
 "	stw	%%r21,4(%%sr1,%2)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"3:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %0\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
@@ -399,19 +429,23 @@ static int emulate_std(struct pt_regs *r
 "	or	%%r1, %%r21, %%r21\n"
 "3:	std	%%r20,0(%%sr1,%2)\n"
 "4:	std	%%r21,8(%%sr1,%2)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"5:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"5:	\n"
+"	.section .fixup,\"ax\"\n"
+"6:	ldi	-2, %0\n"
+	FIXUP_BRANCH(5b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(5b-1b)\n"
-"	.dword  2b,(5b-2b)\n"
-"	.dword	3b,(5b-3b)\n"
-"	.dword  4b,(5b-4b)\n"
-#else
-"	.word	1b,(5b-1b)\n"
-"	.word	2b,(5b-2b)\n"
-"	.word	3b,(5b-3b)\n"
-"	.word	4b,(5b-4b)\n"
+"	.dword	1b,6b\n"
+"	.dword  2b,6b\n"
+"	.dword	3b,6b\n"
+"	.dword  4b,6b\n"
+#else
+"	.word	1b,6b\n"
+"	.word	2b,6b\n"
+"	.word	3b,6b\n"
+"	.word	4b,6b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
@@ -438,21 +472,25 @@ static int emulate_std(struct pt_regs *r
 "3:	stw	%1,0(%%sr1,%1)\n"
 "4:	stw	%%r1,4(%%sr1,%3)\n"
 "5:	stw	%2,8(%%sr1,%3)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"6:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"6:	\n"
+"	.section .fixup,\"ax\"\n"
+"7:	ldi	-2, %0\n"
+	FIXUP_BRANCH(6b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(6b-1b)\n"
-"	.dword  2b,(6b-2b)\n"
-"	.dword	3b,(6b-3b)\n"
-"	.dword  4b,(6b-4b)\n"
-"	.dword  5b,(6b-5b)\n"
-#else
-"	.word	1b,(6b-1b)\n"
-"	.word	2b,(6b-2b)\n"
-"	.word	3b,(6b-3b)\n"
-"	.word	4b,(6b-4b)\n"
-"	.word  	5b,(6b-5b)\n"
+"	.dword	1b,7b\n"
+"	.dword  2b,7b\n"
+"	.dword	3b,7b\n"
+"	.dword  4b,7b\n"
+"	.dword  5b,7b\n"
+#else
+"	.word	1b,7b\n"
+"	.word	2b,7b\n"
+"	.word	3b,7b\n"
+"	.word	4b,7b\n"
+"	.word  	5b,7b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
Index: arch/parisc/lib/Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/lib/Makefile,v
retrieving revision 1.2
diff -u -p -r1.2 Makefile
--- arch/parisc/lib/Makefile	1 Jul 2004 18:30:36 -0000	1.2
+++ arch/parisc/lib/Makefile	13 Sep 2004 23:31:46 -0000
@@ -2,6 +2,6 @@
 # Makefile for parisc-specific library files
 #
 
-lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o
+lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o fixup.o
 
 lib-$(CONFIG_SMP) += debuglocks.o
Index: arch/parisc/lib/fixup.S
===================================================================
RCS file: arch/parisc/lib/fixup.S
diff -N arch/parisc/lib/fixup.S
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ arch/parisc/lib/fixup.S	13 Sep 2004 23:31:46 -0000
@@ -0,0 +1,84 @@
+/*
+ * Linux/PA-RISC Project (http://www.parisc-linux.org/)
+ *
+ *  Copyright (C) 2004  Randolph Chung <tausq@debian.org>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2, or (at your option)
+ *    any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/config.h>
+#include <asm/offsets.h>
+#include <asm/assembly.h>
+#include <asm/errno.h>
+
+#ifdef CONFIG_SMP
+	.macro  get_fault_ip t1 t2
+	addil LT'__per_cpu_offset,\t1
+	LDREG RT'__per_cpu_offset(\t1),\t1
+	/* t2 = smp_processor_id() */
+	mfctl 30,\t2
+	ldw TI_CPU(\t2),\t2
+#ifdef __LP64__
+	extrd,u \t2,63,32,\t2
+#endif
+	/* t2 = &__per_cpu_offset[smp_processor_id()]; */
+	LDREG,s \t2(\t1),\t2 
+	addil LT'per_cpu__exception_data,\t1
+	LDREG RT'per_cpu__exception_data(\t1),\t1
+	/* t1 = &__get_cpu_var(exception_data) */
+	add,l \t1,\t2,\t1
+	/* t1 = t1->fault_ip */
+	LDREG EXCDATA_IP(\t1), \t1
+	.endm
+#else
+	.macro  get_fault_ip t1 t2
+	/* t1 = &__get_cpu_var(exception_data) */
+	addil LT'per_cpu__exception_data,\t1
+	LDREG RT'per_cpu__exception_data(\t1),\t2
+	/* t1 = t1->fault_ip */
+	LDREG EXCDATA_IP(\t2), \t1
+	.endm
+#endif
+
+	.text
+
+	.export fixup_get_user_skip_1
+fixup_get_user_skip_1:
+	get_fault_ip %r1,%r8
+	ldo 4(%r1), %r1
+	ldi -EFAULT, %r8
+	bv %r0(%r1)
+	copy %r0, %r9
+
+	.export fixup_get_user_skip_2
+fixup_get_user_skip_2:
+	get_fault_ip %r1,%r8
+	ldo 8(%r1), %r1
+	ldi -EFAULT, %r8
+	bv %r0(%r1)
+	copy %r0, %r9
+
+	.export fixup_put_user_skip_1
+fixup_put_user_skip_1:
+	get_fault_ip %r1,%r8
+	ldo 4(%r1), %r1
+	bv %r0(%r1)
+	ldi -EFAULT, %r8
+
+	.export fixup_put_user_skip_2
+fixup_put_user_skip_2:
+	get_fault_ip %r1,%r8
+	ldo 8(%r1), %r1
+	bv %r0(%r1)
+	ldi -EFAULT, %r8
Index: arch/parisc/lib/lusercopy.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/lib/lusercopy.S,v
retrieving revision 1.3
diff -u -p -r1.3 lusercopy.S
--- arch/parisc/lib/lusercopy.S	17 Jan 2004 06:39:24 -0000	1.3
+++ arch/parisc/lib/lusercopy.S	13 Sep 2004 23:31:46 -0000
@@ -53,6 +53,18 @@
 	mtsp        %r1,%sr1
 	.endm
 
+#ifndef __LP64__
+	.macro fixup_branch lbl
+	b	    \lbl
+	.endm
+#else
+	.macro fixup_branch lbl
+	ldil	    L%\lbl, %r1
+	ldo	    R%\lbl(%r1), %r1
+	bv,n        %r0(%r1)
+	.endm
+#endif
+
 	/*
 	 * unsigned long
 	 * lcopy_to_user(void *to, const void *from, unsigned long n)
@@ -77,14 +89,16 @@ $lctu_done:
 	copy        %r24,%r28
 	.exit
 
-2:      b $lctu_done
+	.section .fixup,"ax"
+2:      fixup_branch $lctu_done
 	ldo         1(%r24),%r24
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -118,18 +132,20 @@ $lcfu_done:
 	copy        %r24,%r28
 	.exit
 
+	.section .fixup,"ax"
 2:      copy        %r24,%r23
 $lcfu_zero_loop:
 	addib,<>    -1,%r23,$lcfu_zero_loop
 	stbs,ma     %r0,1(%r26)
-	b           $lcfu_done
+	fixup_branch $lcfu_done
 	nop
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -159,14 +175,16 @@ $lciu_done:
 	copy        %r24,%r28
 	.exit
 
-2:      b $lciu_done
+	.section .fixup,"ax"
+2:      fixup_branch $lciu_done
 	ldo         1(%r24),%r24
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -201,16 +219,18 @@ $lsfu_exit:
 	nop
 	.exit
 
-3:      b           $lsfu_exit
+	.section .fixup,"ax"
+3:      fixup_branch $lsfu_exit
 	ldi         -EFAULT,%r28
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(3b-1b)
-	.dword      2b,(3b-2b)
+	.dword      1b,3b
+	.dword      2b,3b
 #else
-	.word       1b,(3b-1b)
-	.word       2b,(3b-2b)
+	.word       1b,3b
+	.word       2b,3b
 #endif
 	.previous
 
@@ -239,14 +259,16 @@ $lclu_done:
 	copy        %r25,%r28
 	.exit
 
-2:      b $lclu_done
+	.section .fixup,"ax"
+2:      fixup_branch $lclu_done
 	ldo        1(%r25),%r25
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -282,16 +304,18 @@ $lslen_nzero:
 	b           $lslen_done
 	ldo         1(%r26),%r26 /* special case for N == 0 */
 
-3:      b           $lslen_done
+	.section .fixup,"ax"
+3:      fixup_branch $lslen_done
 	copy        %r24,%r26    /* reset r26 so 0 is returned on fault */
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(3b-1b)
-	.dword      2b,(3b-2b)
+	.dword      1b,3b
+	.dword      2b,3b
 #else
-	.word       1b,(3b-1b)
-	.word       2b,(3b-2b)
+	.word       1b,3b
+	.word       2b,3b
 #endif
 	.previous
 
Index: arch/parisc/mm/fault.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/mm/fault.c,v
retrieving revision 1.1
diff -u -p -r1.1 fault.c
--- arch/parisc/mm/fault.c	29 Jul 2003 17:00:42 -0000	1.1
+++ arch/parisc/mm/fault.c	13 Sep 2004 23:31:46 -0000
@@ -36,6 +36,9 @@
 
 #define BITSSET		0x1c0	/* for identifying LDCW */
 
+
+DEFINE_PER_CPU(struct exception_data, exception_data);
+
 /*
  * parisc_acctyp(unsigned int inst) --
  *    Given a PA-RISC memory access instruction, determine if the
@@ -234,13 +237,16 @@ no_context:
 		fix = search_exception_tables(regs->iaoq[0]);
 
 		if (fix) {
+			struct exception_data *d;
+
+printk("applying fixup for 0x%lx, fixup at 0x%lx\n", regs->iaoq[0], fix->fixup & ~3);
 
-			if (fix->skip & 1) 
-				regs->gr[8] = -EFAULT;
-			if (fix->skip & 2)
-				regs->gr[9] = 0;
+			d = &__get_cpu_var(exception_data);
+			d->fault_ip = regs->iaoq[0];
+			d->fault_space = regs->isr;
+			d->fault_addr = regs->ior;
 
-			regs->iaoq[0] += ((fix->skip) & ~3);
+			regs->iaoq[0] = ((fix->fixup) & ~3);
 
 			/*
 			 * NOTE: In some cases the faulting instruction
Index: include/asm-parisc/uaccess.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/uaccess.h,v
retrieving revision 1.13
diff -u -p -r1.13 uaccess.h
--- include/asm-parisc/uaccess.h	4 Feb 2004 18:24:55 -0000	1.13
+++ include/asm-parisc/uaccess.h	13 Sep 2004 23:31:47 -0000
@@ -54,16 +54,21 @@ extern int __put_user_bad(void);
 /*
  * The exception table contains two values: the first is an address
  * for an instruction that is allowed to fault, and the second is
- * the number of bytes to skip if a fault occurs. We also support in
- * two bit flags: 0x2 tells the exception handler to clear register
- * r9 and 0x1 tells the exception handler to put -EFAULT in r8.
- * This allows us to handle the simple cases for put_user and
- * get_user without having to have .fixup sections.
+ * the address to the fixup routine. We also support two bit flags: 
+ * 0x2 tells the exception handler to store the faulting address in
+ * r9 and 0x1 tells the exception handler to store the faulting
+ * insn in r8.
  */
 
 struct exception_table_entry {
 	unsigned long insn;  /* address of insn that is allowed to fault.   */
-	long skip;           /* pcoq skip | r9 clear flag | r8 -EFAULT flag */
+	long fixup;          /* fixup | r9 ior flag | r8 iir flag */
+};
+
+struct exception_data {
+	unsigned long fault_ip;
+	unsigned long fault_space;
+	unsigned long fault_addr;
 };
 
 #define __get_user(x,ptr)                               \
@@ -97,40 +102,32 @@ struct exception_table_entry {
 #ifdef __LP64__
 #define __get_kernel_asm(ldx,ptr)                       \
 	__asm__("\n1:\t" ldx "\t0(%2),%0\n"             \
-		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.dword\t1b\n"                       \
-		 "\t.dword\t(2b-1b)+3\n"                \
-		 "\t.previous"                          \
+		"\t.section __ex_table,\"aw\"\n"        \
+		"\t.dword\t1b,fixup_get_user_skip_1\n"	\
+		"\t.previous"                          	\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err));
 
 #define __get_user_asm(ldx,ptr)                         \
 	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
-		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.dword\t1b\n"                       \
-		 "\t.dword\t(2b-1b)+3\n"                \
-		 "\t.previous"                          \
+		"\t.section __ex_table,\"aw\"\n"	\
+		"\t.dword\t1b,fixup_get_user_skip_1\n"	\
+		"\t.previous"				\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err));
 #else
 #define __get_kernel_asm(ldx,ptr)                       \
 	__asm__("\n1:\t" ldx "\t0(%2),%0\n"             \
-		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.word\t1b\n"                        \
-		 "\t.word\t(2b-1b)+3\n"                 \
-		 "\t.previous"                          \
+		"\t.section __ex_table,\"aw\"\n"        \
+		"\t.word\t1b,fixup_get_user_skip_1\n"	\
+		"\t.previous"                          	\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err));
 
 #define __get_user_asm(ldx,ptr)                         \
 	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
-		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.word\t1b\n"                        \
-		 "\t.word\t(2b-1b)+3\n"                 \
+		"\t.section __ex_table,\"aw\"\n"	\
+		 "\t.word\t1b,fixup_get_user_skip_1\n"	\
 		 "\t.previous"                          \
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err));
@@ -138,7 +135,7 @@ struct exception_table_entry {
 
 #define __put_user(x,ptr)                                       \
 ({								\
-	register long __pu_err __asm__ ("r8") = 0;		\
+	register long __pu_err __asm__ ("r8") = 0;      	\
 								\
 	if (segment_eq(get_fs(),KERNEL_DS)) {                   \
 	    switch (sizeof(*(ptr))) {                           \
@@ -172,21 +169,17 @@ struct exception_table_entry {
 #define __put_kernel_asm(stx,x,ptr)                         \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%1)\n"                 \
-		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.dword\t1b\n"                           \
-		 "\t.dword\t(2b-1b)+1\n"                    \
-		 "\t.previous"                              \
+		"\t.section __ex_table,\"aw\"\n"            \
+		"\t.dword\t1b,fixup_put_user_skip_1\n"	    \
+		"\t.previous"                               \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
 
 #define __put_user_asm(stx,x,ptr)                           \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
-		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.dword\t1b\n"                           \
-		 "\t.dword\t(2b-1b)+1\n"                    \
+		"\t.section __ex_table,\"aw\"\n"            \
+		 "\t.dword\t1b,fixup_put_user_skip_1\n"	    \
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
@@ -194,10 +187,8 @@ struct exception_table_entry {
 #define __put_kernel_asm(stx,x,ptr)                         \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%1)\n"                 \
-		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.word\t1b\n"                            \
-		 "\t.word\t(2b-1b)+1\n"                     \
+		"\t.section __ex_table,\"aw\"\n"            \
+		 "\t.word\t1b,fixup_put_user_skip_1\n"	    \
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
@@ -205,49 +196,41 @@ struct exception_table_entry {
 #define __put_user_asm(stx,x,ptr)                           \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
-		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.word\t1b\n"                            \
-		 "\t.word\t(2b-1b)+1\n"                     \
+		"\t.section __ex_table,\"aw\"\n"            \
+		 "\t.word\t1b,fixup_put_user_skip_1\n"      \
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
 
-static inline void __put_kernel_asm64(u64 x, void *ptr)
-{
-	u32 hi = x>>32;
-	u32 lo = x&0xffffffff;
-	__asm__ __volatile__ (
-		"\n1:\tstw %1,0(%0)\n"
-		"\n2:\tstw %2,4(%0)\n"
-		"3:\n"
-		"\t.section __ex_table,\"aw\"\n"
-		 "\t.word\t1b\n"
-		 "\t.word\t(3b-1b)+1\n"
-		 "\t.word\t2b\n"
-		 "\t.word\t(3b-2b)+1\n"
-		 "\t.previous"
-		: : "r"(ptr), "r"(hi), "r"(lo));
-
-}
-
-static inline void __put_user_asm64(u64 x, void *ptr)
-{
-	u32 hi = x>>32;
-	u32 lo = x&0xffffffff;
-	__asm__ __volatile__ (
-		"\n1:\tstw %1,0(%%sr3,%0)\n"
-		"\n2:\tstw %2,4(%%sr3,%0)\n"
-		"3:\n"
-		"\t.section __ex_table,\"aw\"\n"
-		 "\t.word\t1b\n"
-		 "\t.word\t(3b-1b)+1\n"
-		 "\t.word\t2b\n"
-		 "\t.word\t(3b-2b)+1\n"
-		 "\t.previous"
-		: : "r"(ptr), "r"(hi), "r"(lo));
+#define __put_kernel_asm64(_x,ptr) do {		    	    \
+	u64 x = (u64)_x;				    \
+	u32 hi = x>>32;					    \
+	u32 lo = x&0xffffffff;				    \
+	__asm__ __volatile__ (				    \
+		"\n1:\tstw %2,0(%1)\n"			    \
+		"\n2:\tstw %3,4(%1)\n"			    \
+		"\t.section __ex_table,\"aw\"\n"	    \
+		 "\t.word\t1b,fixup_put_user_skip_2\n"	    \
+		 "\t.word\t2b,fixup_put_user_skip_1\n"	    \
+		 "\t.previous"				    \
+		: "=r"(__pu_err)                            \
+		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err)); \
+} while (0)
 
-}
+#define __put_user_asm64(_x,ptr) do {		    	    \
+	u64 x = (u64)_x;				    \
+	u32 hi = x>>32;					    \
+	u32 lo = x&0xffffffff;				    \
+	__asm__ __volatile__ (				    \
+		"\n1:\tstw %2,0(%%sr3,%1)\n"		    \
+		"\n2:\tstw %3,4(%%sr3,%1)\n"		    \
+		"\t.section __ex_table,\"aw\"\n"	    \
+		 "\t.word\t1b,fixup_get_user_skip_2\n"	    \
+		 "\t.word\t2b,fixup_get_user_skip_1\n"	    \
+		 "\t.previous"				    \
+		: "=r"(__pu_err)                            \
+		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err)); \
+} while (0)
 
 #endif /* !__LP64__ */
 


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Hello pa*,

on my c110, I used to get usefull info during the boot as follow:

Selected kernel: /vmlinux-2.6.8.1-pa7 from partition 3
ELF32 executable
Entry 00100338 first 00100000 n 2
Segment 0 load 00100000 size 3081408 mediaptr 0x1000
Segment 1 load 003f1000 size 946192 mediaptr 0x2f2000
Branching to kernel entry point 0x00100338. If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.8.1-pa7 (root@hpalin) (gcc version 3.3.4 (Debian 1:3.3.4-9)) 4
FP[0] enabled: Rev 1 Model 11
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0a
vers  0000000d
CPUID vers 11 rev 13 (0x0000016d)
model 9000/777/C110
Total Memory: 512 Mb
LED display at f0190001 registered
SMP: bootstrap CPU ID is 0
Built 1 zonelists
Kernel command line: root=/dev/md2 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=7
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 524288k available
Calibrating delay loop... 119.60 BogoMIPS
Security Scaffold v1.0.0 initialized
Capability LSM initialized
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Brought up 1 CPUs
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0x7, 0x580, 0x0000b }
2. SkyHawk 100/120 FW-SCSI at 0xf3f8c000 [8/12] { 4, 0x0, 0x01f, 0x00089 }
3. Raven T' Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x032, 0x00081 },  addition
4. Raven T' Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x032, 0x00074 },
5. Raven T' Audio at 0xffd04000 [8/16/1] { 10, 0x0, 0x032, 0x0007b }
[...]
20. Raven 120 T' at 0xfffa0000 [32] { 0, 0x0, 0x58e, 0x00004 }
21. Memory at 0xfffb1000 [49] { 1, 0x0, 0x049, 0x00009 }
CPU(s): 1 x PA7200 (PCX-T') at 120.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
Wax at 0xffe00000 found.
Wax EISA Adapter found at 0xfc000000
EISA EEPROM: cannot register misc device.
Enumerating EISA bus
EISA: Probing bus 0 at parisc8:20:5
EISA: Mainboard HWPC0E1 detected.
EISA: Detected 0 cards.
SCSI subsystem initialized
STI GSC/PCI core graphics driver Version 0.9a
id 2b4ded6d-40a00499, conforms to spec rev. 8.04
graphics card name: HPA208LC1024
fb0: stifb 1024x768-8 frame buffer device, HPA208LC1024, id: 2b4ded6d, mmio: 0x0
unwind_init: start = 0x103f2a20, end = 0x10415be0, entries = 8988
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
Soft power switch enabled, polling @ 0xf0140000.
Console: switching to colour frame buffer device 128x48
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
loop: loaded (max 8 devices)
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xffd07000, IRQ 87
eth0: 82596 at 0xffd07000, 00 60 B0 07 1E EA IRQ 87.
zalon_probe: Zalon vers field is 0x1, IRQ 35
ncr53c720-0: rev 0xf irq 35
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3f
[...]

now with 2.6.9-rc2-pa1 + revamping patch I get only and the near same config file (I just copy the old and 'make oldconfig'):

Selected kernel: /vmlinux-2.6.9-rc2-pa1UP32-c110 from partition 3
ELF32 executable
Entry 00100158 first 00100000 n 3
Segment 0 load 00100000 size 2916992 mediaptr 0x1000
Segment 1 load 003c9000 size 541536 mediaptr 0x2ca000
Segment 2 load 00450000 size 413848 mediaptr 0x34f000
Branching to kernel entry point 0x00100158.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org
				<<<<<<<< ??
device: ID = 'ptywd'
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
[...]

I doubt it has any relationship with tausq patch.
Is it a new feature: silent boot (ala hpux :) )?

Thanks in advance for your attention,
	Joel

PS: fwiw nothing more seems to be logged in dmesg, kernel.log, syslog?
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Subject: Re: [parisc-linux] [RFC] Revamp exception handling in the kernel
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Randolph Chung wrote:
> Version 2a of the patch. Changes from the previous version:
> 
> - Fixed the comment in uaccess.h, added some more comments to fixup.S
> - Added missing r1 clobbers
> - addil/ldd should be relative to r27, not r1
> 
> i found out this is a somewhat effective way of testing this patch:
> 
> - run "make vmlinux" (or make -j4 vmlinux) in one window
> - run "while true; do ./wtest; sleep 30; done" in another window
> 
> wtest is compiled from:
> -------------------8< cut here 8<--------------------
> #include <stdio.h>
> #include <unistd.h>
> #include <errno.h>
> 
> int main(int argc, char **argv)
> {
>         char *buf = (char *)1;
>         int ret;
> 
>         ret = write(fileno(stdout), buf, 10);
>         printf("write returned ret = %d, errno = %d\n", ret, errno);
> 
>         return 0;
> }
> 
> -------------------8< cut here 8<--------------------
> 
[...]
mmm, just running wtest and:
applying fixup for 0x10100350, fixup at 0x1038e1d8
Backtrace:
  [<1024fee0>] opost_block+0x58/0x1f8
  [<10252d84>] write_chan+0x204/0x2a8
  [<1024c02c>] tty_write+0x260/0x32c
  [<1017d6b0>] vfs_write+0x100/0x148
  [<1017d7fc>] sys_write+0x5c/0xa8
  [<10110178>] syscall_exit+0x0/0x14


Kernel Fault: Code=26 regs=2a9fc3c0 (Addr=00000001)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 00000aa0 1024fee0 0000000a
r04-07  2cb89000 00000001 2cb89000 2cc95320
r08-11  00000000 00000001 00000000 2cb89948
r12-15  00000001 00000000 000aa000 000eae68
r16-19  000eaf08 000eab48 00000000 00000000
r20-23  30000001 00000fff 00000001 00000000
r24-27  0000000a 00000001 2a9fc312 103ef010
r28-31  00000fff 00000000 2a9fc3c0 102540d8
sr0-3   00000000 00000aa0 00000000 00000aa0
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10100320 10100324
  IIR: 0f221021    ISR: 00000000  IOR: 00000001
  CPU:        0   CR30: 2a9fc000 CR31: 10454000
  ORIG_R28: 00000000
  IAOQ[0]: $lctu_loop+0x0/0xc
  IAOQ[1]: $lctu_loop+0x4/0xc
  RP(r2): opost_block+0x58/0x1f8
Kernel panic - not syncing: Kernel Fault

Is panic awaited?

TIA,
	Joel
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> > Can we have a non-executable stack on PA?
> > 
> > Why or why not?
> 
> Do you mean on the architecture? Yes, you can. afaik, hpux has a 
> non-executable stack.

While a non-executable stack can be used on hpux, it's not the default.

GCC currently needs an executable stack for calling nested functions
on both linux and hpux.  See the trampoline macros in pa.h.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] [RFC] Non-executable stack?
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> While a non-executable stack can be used on hpux, it's not the default.
> 
> GCC currently needs an executable stack for calling nested functions
> on both linux and hpux.  See the trampoline macros in pa.h.

Moving signal return trampolines off the stack is a first step at
getting a working non-executable stack.

The idea of having a vDSO is very cool IMO, especially since it solves
our problems with having to detect LWS CAS... which normally crashes the
old kernels. One could also define a new sysconf() variable and rely on 
that.

Opinions?

c.

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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [RFC] Revamp exception handling in the kernel
Date: Tue, 14 Sep 2004 18:36:56 -0400
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On Tue, Sep 14, 2004 at 09:06:13AM -0700, Randolph Chung wrote:
> then..... i don't particular like this change (inline to macro). was
> hoping that it will fix some compile warnings, but it introduces other
> ones :(

This works for me on 32-bit (c3k, latest cvs head) + patches.
Passes my multi-kill-kernel and test-lws tests, along with a kernel
build. It includes my changes for LWS.

I say it's good to checkin.

c.

Index: arch/parisc/kernel/asm-offsets.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/asm-offsets.c,v
retrieving revision 1.10
diff -u -p -r1.10 asm-offsets.c
--- arch/parisc/kernel/asm-offsets.c	13 Sep 2004 15:22:24 -0000	1.10
+++ arch/parisc/kernel/asm-offsets.c	14 Sep 2004 22:30:09 -0000
@@ -38,6 +38,7 @@
 #include <asm/ptrace.h>
 #include <asm/processor.h>
 #include <asm/pdc.h>
+#include <asm/uaccess.h>
 
 #define DEFINE(sym, val) \
 	asm volatile("\n->" #sym " %0 " #val : : "i" (val))
@@ -291,5 +292,8 @@ int main(void)
 	DEFINE(ASM_PT_INITIAL, PT_INITIAL);
 	DEFINE(ASM_PAGE_SIZE, PAGE_SIZE);
 	BLANK();
+	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
+	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
+	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
 	return 0;
 }
Index: arch/parisc/kernel/syscall.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/syscall.S,v
retrieving revision 1.14
diff -u -p -r1.14 syscall.S
--- arch/parisc/kernel/syscall.S	10 Sep 2004 14:52:01 -0000	1.14
+++ arch/parisc/kernel/syscall.S	14 Sep 2004 22:30:09 -0000
@@ -29,6 +29,19 @@
 #else
 	.level		1.1
 #endif
+
+#ifndef __LP64__
+	.macro fixup_branch,lbl
+	b	    \lbl
+	.endm
+#else
+	.macro fixup_branch,lbl
+	ldil	    L%\lbl, %r1
+	ldo	    R%\lbl(%r1), %r1
+	bv,n        %r0(%r1)
+	.endm
+#endif
+
 	.text
 
 	.import syscall_exit,code
@@ -575,10 +588,7 @@ cas_action:
 	/* Return to userspace, set no error */
 	b	lws_exit
 	copy	%r0, %r21
-	nop	/* Add some visual space in objdump */
-	nop
-	nop
-	nop
+
 3:		
 	/* Error occured on load or store */
 #ifdef CONFIG_SMP
@@ -596,15 +606,16 @@ cas_action:
 	nop
 
 	/* Two exception table entries, one for the load,
-	   the other for the store. Either return -EFAULT */
+	   the other for the store. Either return -EFAULT.
+	   Each of the entries must be relocated. */
 	.section __ex_table,"aw"
 #ifdef __LP64__
 	/* Pad the address calculation */
 	.word	0,(2b - linux_gateway_page)
-	.dword	(3b - 2b) 
+	.word	0,(3b - linux_gateway_page)
 #else
-	.word	2b - linux_gateway_page
-	.word	(3b - 2b) 
+	.word	(2b - linux_gateway_page)
+	.word	(3b - linux_gateway_page)
 #endif
 	.previous
 
@@ -612,10 +623,10 @@ cas_action:
 #ifdef __LP64__
 	/* Pad the address calculation */
 	.word	0,(1b - linux_gateway_page)
-	.dword	(3b - 1b) 
+	.word	0,(3b - linux_gateway_page)
 #else
-	.word	1b - linux_gateway_page
-	.word	(3b - 1b) 
+	.word	(1b - linux_gateway_page)
+	.word	(3b - linux_gateway_page)
 #endif
 	.previous
 
Index: arch/parisc/kernel/unaligned.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/unaligned.c,v
retrieving revision 1.8
diff -u -p -r1.8 unaligned.c
--- arch/parisc/kernel/unaligned.c	21 Aug 2004 06:19:33 -0000	1.8
+++ arch/parisc/kernel/unaligned.c	14 Sep 2004 22:30:09 -0000
@@ -23,6 +23,7 @@
 #include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <asm/uaccess.h>
 
 /* #define DEBUG_UNALIGNED 1 */
 
@@ -34,8 +35,14 @@
 
 #ifdef __LP64__
 #define RFMT "%016lx"
+#define FIXUP_BRANCH(lbl) \
+	"\tb " #lbl "\n"
 #else
 #define RFMT "%08lx"
+#define FIXUP_BRANCH(lbl) \
+	"\tldil L%%" #lbl ", %%r1\n"			\
+	"\tldo R%%" #lbl "(%%r1), %%r1\n"		\
+	"\tbv,n %%r0(%%r1)\n"
 #endif
 
 /* 1111 1100 0000 0000 0001 0011 1100 0000 */
@@ -134,15 +141,19 @@ static int emulate_ldh(struct pt_regs *r
 "1:	ldbs	0(%%sr1,%3), %%r20\n"
 "2:	ldbs	1(%%sr1,%3), %0\n"
 "	depw	%%r20, 23, 24, %0\n"
-"	cmpclr,= %%r0, %%r0, %1\n"
-"3:	ldo	-2(%%r0), %1\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %1\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %1\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (val), "=r" (ret)
@@ -175,15 +186,19 @@ static int emulate_ldw(struct pt_regs *r
 "	subi	32,%%r19,%%r19\n"
 "	mtctl	%%r19,11\n"
 "	vshd	%0,%%r20,%0\n"
-"	cmpclr,= %%r0, %%r0, %1\n"
-"3:	ldo	-2(%%r0), %1\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %1\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %1\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (val), "=r" (ret)
@@ -222,15 +237,19 @@ static int emulate_ldd(struct pt_regs *r
 "	subi	64,%%r19,%%r19\n"
 "	mtsar	%%r19\n"
 "	shrpd	%0,%%r20,%%sar,%0\n"
-"	cmpclr,= %%r0, %%r0, %1\n"
-"3:	ldo	-2(%%r0), %1\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %1\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %1\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (val), "=r" (ret)
@@ -250,17 +269,20 @@ static int emulate_ldd(struct pt_regs *r
 "	mtsar	%%r19\n"
 "	vshd	%0,%1,%0\n"
 "	vshd	%1,%%r20,%1\n"
-"	cmpclr,= %%r0, %%r0, %2\n"
-"4:	ldo	-2(%%r0), %2\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %2\n"
+"4:	\n"
+"	.section .fixup,\"ax\"\n"
+"5:	ldi	-2, %2\n"
+	FIXUP_BRANCH(4b)
+"	.previous\n"
 #ifdef __LP64__
-"	.dword	1b,(4b-1b)\n"
-"	.dword  2b,(4b-2b)\n"
-"	.dword	3b,(4b-3b)\n"
-#else
-"	.word	1b,(4b-1b)\n"
-"	.word	2b,(4b-2b)\n"
-"	.word	3b,(4b-3b)\n"
+"	.dword	1b,5b\n"
+"	.dword  2b,5b\n"
+"	.dword	3b,5b\n"
+#else
+"	.word	1b,5b\n"
+"	.word	2b,5b\n"
+"	.word	3b,5b\n"
 #endif
 "	.previous\n"
 	: "=r" (valh), "=r" (vall), "=r" (ret)
@@ -296,15 +318,19 @@ static int emulate_sth(struct pt_regs *r
 "	extrw,u %1, 23, 8, %%r19\n"
 "1:	stb %1, 1(%%sr1, %2)\n"
 "2:	stb %%r19, 0(%%sr1, %2)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"3:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %0\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
@@ -346,15 +372,19 @@ static int emulate_stw(struct pt_regs *r
 "	or	%%r1, %%r21, %%r21\n"
 "	stw	%%r20,0(%%sr1,%2)\n"
 "	stw	%%r21,4(%%sr1,%2)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"3:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"3:	\n"
+"	.section .fixup,\"ax\"\n"
+"4:	ldi	-2, %0\n"
+	FIXUP_BRANCH(3b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(3b-1b)\n"
-"	.dword  2b,(3b-2b)\n"
+"	.dword	1b,4b\n"
+"	.dword  2b,4b\n"
 #else
-"	.word	1b,(3b-1b)\n"
-"	.word	2b,(3b-2b)\n"
+"	.word	1b,4b\n"
+"	.word	2b,4b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
@@ -399,19 +429,23 @@ static int emulate_std(struct pt_regs *r
 "	or	%%r1, %%r21, %%r21\n"
 "3:	std	%%r20,0(%%sr1,%2)\n"
 "4:	std	%%r21,8(%%sr1,%2)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"5:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"5:	\n"
+"	.section .fixup,\"ax\"\n"
+"6:	ldi	-2, %0\n"
+	FIXUP_BRANCH(5b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(5b-1b)\n"
-"	.dword  2b,(5b-2b)\n"
-"	.dword	3b,(5b-3b)\n"
-"	.dword  4b,(5b-4b)\n"
-#else
-"	.word	1b,(5b-1b)\n"
-"	.word	2b,(5b-2b)\n"
-"	.word	3b,(5b-3b)\n"
-"	.word	4b,(5b-4b)\n"
+"	.dword	1b,6b\n"
+"	.dword  2b,6b\n"
+"	.dword	3b,6b\n"
+"	.dword  4b,6b\n"
+#else
+"	.word	1b,6b\n"
+"	.word	2b,6b\n"
+"	.word	3b,6b\n"
+"	.word	4b,6b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
@@ -438,21 +472,25 @@ static int emulate_std(struct pt_regs *r
 "3:	stw	%1,0(%%sr1,%1)\n"
 "4:	stw	%%r1,4(%%sr1,%3)\n"
 "5:	stw	%2,8(%%sr1,%3)\n"
-"	cmpclr,= %%r0, %%r0, %0\n"
-"6:	ldo	-2(%%r0), %0\n"
-"	.section __ex_table,\"a\"\n"
+"	copy	%%r0, %0\n"
+"6:	\n"
+"	.section .fixup,\"ax\"\n"
+"7:	ldi	-2, %0\n"
+	FIXUP_BRANCH(6b)
+"	.previous\n"
+"	.section __ex_table,\"aw\"\n"
 #ifdef __LP64__
-"	.dword	1b,(6b-1b)\n"
-"	.dword  2b,(6b-2b)\n"
-"	.dword	3b,(6b-3b)\n"
-"	.dword  4b,(6b-4b)\n"
-"	.dword  5b,(6b-5b)\n"
-#else
-"	.word	1b,(6b-1b)\n"
-"	.word	2b,(6b-2b)\n"
-"	.word	3b,(6b-3b)\n"
-"	.word	4b,(6b-4b)\n"
-"	.word  	5b,(6b-5b)\n"
+"	.dword	1b,7b\n"
+"	.dword  2b,7b\n"
+"	.dword	3b,7b\n"
+"	.dword  4b,7b\n"
+"	.dword  5b,7b\n"
+#else
+"	.word	1b,7b\n"
+"	.word	2b,7b\n"
+"	.word	3b,7b\n"
+"	.word	4b,7b\n"
+"	.word  	5b,7b\n"
 #endif
 "	.previous\n"
 	: "=r" (ret)
Index: arch/parisc/lib/Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/lib/Makefile,v
retrieving revision 1.2
diff -u -p -r1.2 Makefile
--- arch/parisc/lib/Makefile	1 Jul 2004 18:30:36 -0000	1.2
+++ arch/parisc/lib/Makefile	14 Sep 2004 22:30:09 -0000
@@ -2,6 +2,6 @@
 # Makefile for parisc-specific library files
 #
 
-lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o
+lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o fixup.o
 
 lib-$(CONFIG_SMP) += debuglocks.o
Index: arch/parisc/lib/lusercopy.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/lib/lusercopy.S,v
retrieving revision 1.3
diff -u -p -r1.3 lusercopy.S
--- arch/parisc/lib/lusercopy.S	17 Jan 2004 06:39:24 -0000	1.3
+++ arch/parisc/lib/lusercopy.S	14 Sep 2004 22:30:09 -0000
@@ -53,6 +53,18 @@
 	mtsp        %r1,%sr1
 	.endm
 
+#ifndef __LP64__
+	.macro fixup_branch lbl
+	b	    \lbl
+	.endm
+#else
+	.macro fixup_branch lbl
+	ldil	    L%\lbl, %r1
+	ldo	    R%\lbl(%r1), %r1
+	bv,n        %r0(%r1)
+	.endm
+#endif
+
 	/*
 	 * unsigned long
 	 * lcopy_to_user(void *to, const void *from, unsigned long n)
@@ -77,14 +89,16 @@ $lctu_done:
 	copy        %r24,%r28
 	.exit
 
-2:      b $lctu_done
+	.section .fixup,"ax"
+2:      fixup_branch $lctu_done
 	ldo         1(%r24),%r24
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -118,18 +132,20 @@ $lcfu_done:
 	copy        %r24,%r28
 	.exit
 
+	.section .fixup,"ax"
 2:      copy        %r24,%r23
 $lcfu_zero_loop:
 	addib,<>    -1,%r23,$lcfu_zero_loop
 	stbs,ma     %r0,1(%r26)
-	b           $lcfu_done
+	fixup_branch $lcfu_done
 	nop
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -159,14 +175,16 @@ $lciu_done:
 	copy        %r24,%r28
 	.exit
 
-2:      b $lciu_done
+	.section .fixup,"ax"
+2:      fixup_branch $lciu_done
 	ldo         1(%r24),%r24
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -201,16 +219,18 @@ $lsfu_exit:
 	nop
 	.exit
 
-3:      b           $lsfu_exit
+	.section .fixup,"ax"
+3:      fixup_branch $lsfu_exit
 	ldi         -EFAULT,%r28
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(3b-1b)
-	.dword      2b,(3b-2b)
+	.dword      1b,3b
+	.dword      2b,3b
 #else
-	.word       1b,(3b-1b)
-	.word       2b,(3b-2b)
+	.word       1b,3b
+	.word       2b,3b
 #endif
 	.previous
 
@@ -239,14 +259,16 @@ $lclu_done:
 	copy        %r25,%r28
 	.exit
 
-2:      b $lclu_done
+	.section .fixup,"ax"
+2:      fixup_branch $lclu_done
 	ldo        1(%r25),%r25
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(2b-1b)
+	.dword      1b,2b
 #else
-	.word       1b,(2b-1b)
+	.word       1b,2b
 #endif
 	.previous
 
@@ -282,16 +304,18 @@ $lslen_nzero:
 	b           $lslen_done
 	ldo         1(%r26),%r26 /* special case for N == 0 */
 
-3:      b           $lslen_done
+	.section .fixup,"ax"
+3:      fixup_branch $lslen_done
 	copy        %r24,%r26    /* reset r26 so 0 is returned on fault */
+	.previous
 
-	.section __ex_table,"a"
+	.section __ex_table,"aw"
 #ifdef __LP64__
-	.dword      1b,(3b-1b)
-	.dword      2b,(3b-2b)
+	.dword      1b,3b
+	.dword      2b,3b
 #else
-	.word       1b,(3b-1b)
-	.word       2b,(3b-2b)
+	.word       1b,3b
+	.word       2b,3b
 #endif
 	.previous
 
Index: arch/parisc/mm/fault.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/mm/fault.c,v
retrieving revision 1.1
diff -u -p -r1.1 fault.c
--- arch/parisc/mm/fault.c	29 Jul 2003 17:00:42 -0000	1.1
+++ arch/parisc/mm/fault.c	14 Sep 2004 22:30:09 -0000
@@ -36,6 +36,9 @@
 
 #define BITSSET		0x1c0	/* for identifying LDCW */
 
+
+DEFINE_PER_CPU(struct exception_data, exception_data);
+
 /*
  * parisc_acctyp(unsigned int inst) --
  *    Given a PA-RISC memory access instruction, determine if the
@@ -234,13 +237,16 @@ no_context:
 		fix = search_exception_tables(regs->iaoq[0]);
 
 		if (fix) {
+			struct exception_data *d;
+
+printk("applying fixup for 0x%lx, fixup at 0x%lx\n", regs->iaoq[0], fix->fixup & ~3);
 
-			if (fix->skip & 1) 
-				regs->gr[8] = -EFAULT;
-			if (fix->skip & 2)
-				regs->gr[9] = 0;
+			d = &__get_cpu_var(exception_data);
+			d->fault_ip = regs->iaoq[0];
+			d->fault_space = regs->isr;
+			d->fault_addr = regs->ior;
 
-			regs->iaoq[0] += ((fix->skip) & ~3);
+			regs->iaoq[0] = ((fix->fixup) & ~3);
 
 			/*
 			 * NOTE: In some cases the faulting instruction
Index: include/asm-parisc/uaccess.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/uaccess.h,v
retrieving revision 1.15
diff -u -p -r1.15 uaccess.h
--- include/asm-parisc/uaccess.h	13 Sep 2004 16:43:28 -0000	1.15
+++ include/asm-parisc/uaccess.h	14 Sep 2004 22:30:19 -0000
@@ -55,16 +55,22 @@ extern int __put_user_bad(void);
 /*
  * The exception table contains two values: the first is an address
  * for an instruction that is allowed to fault, and the second is
- * the number of bytes to skip if a fault occurs. We also support in
- * two bit flags: 0x2 tells the exception handler to clear register
- * r9 and 0x1 tells the exception handler to put -EFAULT in r8.
- * This allows us to handle the simple cases for put_user and
- * get_user without having to have .fixup sections.
+ * the address to the fixup routine. 
  */
 
 struct exception_table_entry {
 	unsigned long insn;  /* address of insn that is allowed to fault.   */
-	long skip;           /* pcoq skip | r9 clear flag | r8 -EFAULT flag */
+	long fixup;          /* fixup routine */
+};
+
+/*
+ * The page fault handler stores, in a per-cpu area, the following information
+ * if a fixup routine is available.
+ */
+struct exception_data {
+	unsigned long fault_ip;
+	unsigned long fault_space;
+	unsigned long fault_addr;
 };
 
 #define __get_user(x,ptr)                               \
@@ -98,48 +104,44 @@ struct exception_table_entry {
 #ifdef __LP64__
 #define __get_kernel_asm(ldx,ptr)                       \
 	__asm__("\n1:\t" ldx "\t0(%2),%0\n"             \
-		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.dword\t1b\n"                       \
-		 "\t.dword\t(2b-1b)+3\n"                \
-		 "\t.previous"                          \
+		"\t.section __ex_table,\"aw\"\n"        \
+		"\t.dword\t1b,fixup_get_user_skip_1\n"	\
+		"\t.previous"                          	\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err));
+		: "r"(ptr), "1"(__gu_err)		\
+		: "r1");
 
 #define __get_user_asm(ldx,ptr)                         \
 	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
-		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.dword\t1b\n"                       \
-		 "\t.dword\t(2b-1b)+3\n"                \
-		 "\t.previous"                          \
+		"\t.section __ex_table,\"aw\"\n"	\
+		"\t.dword\t1b,fixup_get_user_skip_1\n"	\
+		"\t.previous"				\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err));
+		: "r"(ptr), "1"(__gu_err)		\
+		: "r1");
 #else
 #define __get_kernel_asm(ldx,ptr)                       \
 	__asm__("\n1:\t" ldx "\t0(%2),%0\n"             \
-		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.word\t1b\n"                        \
-		 "\t.word\t(2b-1b)+3\n"                 \
-		 "\t.previous"                          \
+		"\t.section __ex_table,\"aw\"\n"        \
+		"\t.word\t1b,fixup_get_user_skip_1\n"	\
+		"\t.previous"                          	\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err));
+		: "r"(ptr), "1"(__gu_err)		\
+		: "r1");
 
 #define __get_user_asm(ldx,ptr)                         \
 	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
-		"2:\n"					\
-		"\t.section __ex_table,\"aw\"\n"         \
-		 "\t.word\t1b\n"                        \
-		 "\t.word\t(2b-1b)+3\n"                 \
+		"\t.section __ex_table,\"aw\"\n"	\
+		 "\t.word\t1b,fixup_get_user_skip_1\n"	\
 		 "\t.previous"                          \
 		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err));
+		: "r"(ptr), "1"(__gu_err)		\
+		: "r1");
 #endif /* !__LP64__ */
 
 #define __put_user(x,ptr)                                       \
 ({								\
-	register long __pu_err __asm__ ("r8") = 0;		\
+	register long __pu_err __asm__ ("r8") = 0;      	\
 								\
 	if (segment_eq(get_fs(),KERNEL_DS)) {                   \
 	    switch (sizeof(*(ptr))) {                           \
@@ -173,82 +175,73 @@ struct exception_table_entry {
 #define __put_kernel_asm(stx,x,ptr)                         \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%1)\n"                 \
-		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.dword\t1b\n"                           \
-		 "\t.dword\t(2b-1b)+1\n"                    \
-		 "\t.previous"                              \
+		"\t.section __ex_table,\"aw\"\n"            \
+		"\t.dword\t1b,fixup_put_user_skip_1\n"	    \
+		"\t.previous"                               \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err))
 
 #define __put_user_asm(stx,x,ptr)                           \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
-		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.dword\t1b\n"                           \
-		 "\t.dword\t(2b-1b)+1\n"                    \
+		"\t.section __ex_table,\"aw\"\n"            \
+		 "\t.dword\t1b,fixup_put_user_skip_1\n"	    \
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err))
+		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
+		: "r1")
 #else
 #define __put_kernel_asm(stx,x,ptr)                         \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%1)\n"                 \
-		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.word\t1b\n"                            \
-		 "\t.word\t(2b-1b)+1\n"                     \
+		"\t.section __ex_table,\"aw\"\n"            \
+		 "\t.word\t1b,fixup_put_user_skip_1\n"	    \
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err))
+		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
+		: "r1")
 
 #define __put_user_asm(stx,x,ptr)                           \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
-		"2:\n"					    \
-		"\t.section __ex_table,\"aw\"\n"             \
-		 "\t.word\t1b\n"                            \
-		 "\t.word\t(2b-1b)+1\n"                     \
+		"\t.section __ex_table,\"aw\"\n"            \
+		 "\t.word\t1b,fixup_put_user_skip_1\n"      \
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err))
+		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
+		: "r1")
 
-static inline void __put_kernel_asm64(u64 x, void *ptr)
-{
-	u32 hi = x>>32;
-	u32 lo = x&0xffffffff;
-	__asm__ __volatile__ (
-		"\n1:\tstw %1,0(%0)\n"
-		"\n2:\tstw %2,4(%0)\n"
-		"3:\n"
-		"\t.section __ex_table,\"aw\"\n"
-		 "\t.word\t1b\n"
-		 "\t.word\t(3b-1b)+1\n"
-		 "\t.word\t2b\n"
-		 "\t.word\t(3b-2b)+1\n"
-		 "\t.previous"
-		: : "r"(ptr), "r"(hi), "r"(lo));
-
-}
-
-static inline void __put_user_asm64(u64 x, void *ptr)
-{
-	u32 hi = x>>32;
-	u32 lo = x&0xffffffff;
-	__asm__ __volatile__ (
-		"\n1:\tstw %1,0(%%sr3,%0)\n"
-		"\n2:\tstw %2,4(%%sr3,%0)\n"
-		"3:\n"
-		"\t.section __ex_table,\"aw\"\n"
-		 "\t.word\t1b\n"
-		 "\t.word\t(3b-1b)+1\n"
-		 "\t.word\t2b\n"
-		 "\t.word\t(3b-2b)+1\n"
-		 "\t.previous"
-		: : "r"(ptr), "r"(hi), "r"(lo));
-
-}
+#define __put_kernel_asm64(__val,ptr) do {		    	    \
+	u64 __val64 = (u64)(__val);				    \
+	u32 hi = (__val64) >> 32;					    \
+	u32 lo = (__val64) & 0xffffffff;				    \
+	__asm__ __volatile__ (				    \
+		"\n1:\tstw %2,0(%1)\n"			    \
+		"\n2:\tstw %3,4(%1)\n"			    \
+		"\t.section __ex_table,\"aw\"\n"	    \
+		 "\t.word\t1b,fixup_put_user_skip_2\n"	    \
+		 "\t.word\t2b,fixup_put_user_skip_1\n"	    \
+		 "\t.previous"				    \
+		: "=r"(__pu_err)                            \
+		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
+		: "r1");				    \
+} while (0)
+
+#define __put_user_asm64(__val,ptr) do {		    	    \
+	u64 __val64 = (u64)__val;				    \
+	u32 hi = (__val64) >> 32;					    \
+	u32 lo = (__val64) & 0xffffffff;				    \
+	__asm__ __volatile__ (				    \
+		"\n1:\tstw %2,0(%%sr3,%1)\n"		    \
+		"\n2:\tstw %3,4(%%sr3,%1)\n"		    \
+		"\t.section __ex_table,\"aw\"\n"	    \
+		 "\t.word\t1b,fixup_get_user_skip_2\n"	    \
+		 "\t.word\t2b,fixup_get_user_skip_1\n"	    \
+		 "\t.previous"				    \
+		: "=r"(__pu_err)                            \
+		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
+		: "r1");				    \
+} while (0)
 
 #endif /* !__LP64__ */
 
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Hi all,

running today into the following compile problem with current PARISC CVS HEAD with my old gcc 3.0.2 i386/hppa crosscompiler:
....
  CC      arch/parisc/kernel/unaligned.o
{standard input}: Assembler messages:
{standard input}:158: Error: operation combines symbols in different segments
make[1]: *** [arch/parisc/kernel/unaligned.o] Error 1

i started looking for a newer gcc cross-compiler to download.

The cross-compiler section on the parisc homepage at http://parisc-linux.org/software/index.html#xcs links to 
http://ftp.parisc-linux.org/x86-xcompilers/   and  
ESIEE Team's download page at http://www.pateam.org/download.html#deb

Both links sadly only contain really old crosscompilers.
Maybe someone is looking for an interesting job and could provide new cross compilers either as .deb or rpm packages and update the website ?

Thanks,
Helge
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Subject: Re: [parisc-linux] i386 cross-compiler for hppa/hppa64 ?
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On Wednesday 15 September 2004 21:13, Helge Deller wrote:
> running today into the following compile problem with current PARISC CVS HEAD with my old gcc 3.0.2 i386/hppa crosscompiler:
> ....
>   CC      arch/parisc/kernel/unaligned.o
> {standard input}: Assembler messages:
> {standard input}:158: Error: operation combines symbols in different segments
> make[1]: *** [arch/parisc/kernel/unaligned.o] Error 1

this is the problematic code btw (in case it helps somebody):
....
        .section        .text.emulate_ldd,"ax",@progbits
        .align 4
                .type            emulate_ldd,@function
emulate_ldd:
        .PROC
        .CALLINFO FRAME=64,NO_CALLS,ENTRY_GR=4
        .ENTRY
        stwm %r5,64(%r30)
.....
        .section .fixup,"ax"
......

.Lfe3:
        .size   emulate_ldd,.Lfe3-emulate_ldd		<<<<<<<<<<<<<<<<<< LINE 158 !! <<<<<<<<<<<<<<
        .section        .text.emulate_sth,"ax",@progbits
        .align 4
                .type            emulate_sth,@function
emulate_sth:
        .PROC
        .CALLINFO FRAME=0,NO_CALLS
        .ENTRY
        copy %r26,%r19
.....
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On Wed, 2004-09-15 at 13:09, Joel Soete wrote:
> scsi1: (3:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
>           len = 6, cmd =scsi1 : destination target 3, lun 0
>          command = 0x2a 00 00 3e 7b 3c 00 00 28 00
> scsi1: Bus Reset detected, executing command 1c652ba0, slot 2fda8778, dsp 00128210[0210]

That's rather odd, the symptom is of an old bug, long fixed in the 2.6
kernel (namely 6 byte length for 10 byte command).  Where did you get
this kernel from?

James


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On Wed, Sep 15, 2004 at 05:35:08PM +0000, Joel Soete wrote:
> Out of Memory: Killed process 1760 (test-lws).
> Out of Memory: Killed process 1762 (test-lws).

Yeah, you can't let this happen. The test is a bit rough on your box,
I've always turnes OOM off and minimized the number of *other* running
processes. The test (I think) has a tunable for memory to try capture
before running the CAS. That particular part of the test is trying to
see if CAS'ing on swapped pages is atomic or non-atomic by signaling the
process during a write to a swapped page.

c.

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> The cross-compiler section on the parisc homepage at http://parisc-linux.org/software/index.html#xcs links to 
> http://ftp.parisc-linux.org/x86-xcompilers/   and  
> ESIEE Team's download page at http://www.pateam.org/download.html#deb

If you have time...
http://www.parisc-linux.org/toolchain/PARISC-Linux-XC-HOWTO.html

I recommend Dan Kegel's crosstools and build one using his
infrastructure please :) His tools autobuild everything and it will take
only time to compile the tree. I haven't done this myself because I
don't need an x86->hppa but I might set crosstools to run today on my
dual cpu box at the office.

c.




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Hi,

=20

This is what dmesg show me about some hw on my k360 HP box,

=20

Have you any idea what's going wrong?

=20

PS/2 psaux port at 0xffd08100 (irq 69) found, no device attached.=20

lp0: using parport0 (interrupt-driven).=20

Generic RTC Driver v1.07=20

RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize=20

loop: loaded (max 8 devices)=20

Linux Tulip driver version 0.9.15-pre12 (Aug 9, 2002)=20

PCI: Unable to reserve mem region #2:80@2040000 for device 00:01.0=20

PCI: Unable to reserve mem region #2:80@2040000 for device 00:01.0=20

PCI: Unable to reserve I/O region #1:80@40221200 for device 00:02.0=20

PCI: Unable to reserve I/O region #1:80@40221200 for device 00:02.0=20

Found i82596 at 0xffd07000, IRQ 87=20

eth0: 82596 at 0xffd07000, 00 60 B0 C4 A4 F5 IRQ 87.=20

82596.c $Revision: 1.33 $=20

Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4=20

ide: Assuming 33MHz system bus speed for PIO modes; override with
idebus=3Dxx=20

SCSI subsystem driver Revision: 1.00=20

zalon_scsi_callback: Zalon vers field is 0x1, IRQ 35=20

ncr53c8xx: 53c720 detected=20

ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential

=20

=20

Thanks in advance

=20

=20

=20

=20



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<p class=3DMsoPlainText><font size=3D1 face=3DArial><span =
style=3D'font-size:9.0pt;
font-family:Arial'>Hi,</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DArial><span
style=3D'font-size:9.0pt;font-family:Arial;color:black'>&nbsp;</span></fo=
nt></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DArial><span
style=3D'font-size:9.0pt;font-family:Arial;color:black'>This is what =
dmesg show
me about some hw on my k360 HP box,</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DArial><span
style=3D'font-size:9.0pt;font-family:Arial;color:black'>&nbsp;</span></fo=
nt></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DArial><span
style=3D'font-size:9.0pt;font-family:Arial;color:black'>Have you any =
idea what's
going wrong?</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>&nbsp;</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>PS/2 psaux port at 0xffd08100 (irq =
69)
found, no device attached. </span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>lp0: using parport0 =
(interrupt-driven). </span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>Generic RTC Driver v1.07 =
</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>RAMDISK driver initialized: 16 RAM =
disks of
4096K size 1024 blocksize </span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>loop: loaded (max 8 devices) =
</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>Linux Tulip driver version =
0.9.15-pre12
(Aug 9, 2002) </span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dred face=3DTahoma><span
style=3D'font-size:9.0pt;color:red'>PCI: Unable to reserve mem region
#2:80@2040000 for device 00:01.0 </span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dred face=3DTahoma><span
style=3D'font-size:9.0pt;color:red'>PCI: Unable to reserve mem region
#2:80@2040000 for device 00:01.0 </span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dred face=3DTahoma><span
style=3D'font-size:9.0pt;color:red'>PCI: Unable to reserve I/O region
#1:80@40221200 for device 00:02.0 </span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dred face=3DTahoma><span
style=3D'font-size:9.0pt;color:red'>PCI: Unable to reserve I/O region
#1:80@40221200 for device 00:02.0 </span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>Found i82596 at 0xffd07000, IRQ 87 =
</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>eth0: 82596 at 0xffd07000, 00 60 =
B0 C4 A4
F5 IRQ 87. </span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>82596.c $Revision: 1.33 $ =
</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>Uniform Multi-Platform E-IDE =
driver
Revision: 7.00beta4-2.4 </span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>ide: Assuming 33MHz system bus =
speed for
PIO modes; override with idebus=3Dxx </span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>SCSI subsystem driver Revision: =
1.00 </span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>zalon_scsi_callback: Zalon vers =
field is
0x1, IRQ 35 </span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>ncr53c8xx: 53c720 detected =
</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>ncr53c720-0: ID 7, Fast-10, Parity
Checking, Differential</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>&nbsp;</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>&nbsp;</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DArial><span
style=3D'font-size:9.0pt;font-family:Arial;color:black'>Thanks in =
advance</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DArial><span
style=3D'font-size:9.0pt;font-family:Arial;color:black'>&nbsp;</span></fo=
nt></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>&nbsp;</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>&nbsp;</span></font></p>

<p class=3DMsoPlainText><font size=3D1 color=3Dblack face=3DTahoma><span
style=3D'font-size:9.0pt;color:black'>&nbsp;</span></font></p>

</div>

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Stuart Brady wrote:
> On Thu, Sep 16, 2004 at 10:38:12AM -0400, Carlos O'Donell wrote:
> 
>>If you have time...
>>http://www.parisc-linux.org/toolchain/PARISC-Linux-XC-HOWTO.html
>>
>>I recommend Dan Kegel's crosstools and build one using his
>>infrastructure please :) His tools autobuild everything and it will take
>>only time to compile the tree. I haven't done this myself because I
>>don't need an x86->hppa but I might set crosstools to run today on my
>>dual cpu box at the office.
> 
> 
> Debian doesn't have many cross compilers -- is there a reason for this?
> Given the emphasis Debian has on portability, I'm suprised that packages
> for x86->* (at the very least) aren't available...

Good idea but why only x86->* :) , though?

Joel

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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] NS87415 on C3K broken
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Hi,
Willy pointed out the 2.6.9-rc2 NS87415 driver for C3000 machine
(uses SuckyIO IDE) is causing HPMC (system crash). This was not
a problem with 2.6.8.1.
But while trying to fix MMIO resource management problems, I ran
into this when testing on C3000.

The HPMC stack trace looks like this:
	ide_inb
	ide_wait_not_busy
	wait_hwif_ready
	probe_hwif
	probe_hwif_init
	ide_setup_pci_device
	ns87415_init_one
	ide_scan_pcidev
	ide_scan_pcibus
	ide_init
	do_initcalls

Changes to ide-probe.c cause this HPMC.
wait_hwif_ready() is inside #ifdef CONFIG_PPC in 2.6.8.1 and the
ifdef/endif was removed in 2.6.9-rcX. The result is inb() is invoked
*BEFORE* ide_setup_pci_device() (indirectly) calls pci_enabled_device() or
pci_set_master(). This is broken because IDE controllers NOT enabled
by firmware will simply not respond to inb() (even if the system
doesn't crash like on parisc).

I'm a wimp. I don't dare to restructure IDE init sequence.
Anyone less of a wimp?
Or are IDE pci drivers required to call pci_enable_device()
in their (mostly non-extistent) init_chipset entry point?


Anyway, ns87415 driver has more problems. The patch below adds
"init_chipset" entry point and init_chipset_ns87415() calls
pci_enable_device() and pci_set_master() before the probe.
And my C3k still HPMCs. My guess is more of the code from
init_hwif_ns87415() needs to be moved to init_chipset_ns87415().
And possible call some special suckyio init routines.
I won't be able to touch this for a few days.
Anyone else on parisc-linux ml want to take a whack at this?

BTW, normally a PCI Master Abort to IO Port space to should NOT fail.
But on parisc is does because the chipset will go "fatal" on
any Master Abort - special hacks enable config space to work.
I strongly prefere not to add those hacks to IO Port space
accessor functions since it's normally not a problem.
And while inconvenient, this behavior does expose programming
problems like the one above.


thanks,
grant


Index: drivers/ide/pci/ns87415.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/ide/pci/ns87415.c,v
retrieving revision 1.17
diff -u -p -r1.17 ns87415.c
--- drivers/ide/pci/ns87415.c	13 Sep 2004 15:23:04 -0000	1.17
+++ drivers/ide/pci/ns87415.c	16 Sep 2004 15:06:06 -0000
@@ -133,8 +133,29 @@ static int ns87415_ide_dma_check (ide_dr
 	return __ide_dma_check(drive);
 }
 
+static unsigned int __devinit init_chipset_ns87415(struct pci_dev *dev, const char *name)
+{
+	unsigned short w;
+printk("init_chipset_ns87415(%s,%s)\n", dev->slot_name, name);
+
+	pci_enable_device(dev);
+	pci_set_master(dev);
+
+(void) pci_read_config_word(dev, PCI_COMMAND, &w);
+printk("	cmd 0x%x\n", w);
+
+	if ((w & PCI_COMMAND_IO) == 0) {
+		w |= PCI_COMMAND_IO;
+		(void) pci_write_config_word(dev, PCI_COMMAND, w);
+printk("	enabling IO space\n");
+	}
+	return 0;
+}
+
+
 static void __init init_iops_ns87415(ide_hwif_t *hwif)
 {
+printk("init_iops_ns87415(%s)\n", hwif->pci_dev->slot_name);
 #ifdef CONFIG_SUPERIO
 	superio_ide_init_iops(hwif);
 #endif
@@ -150,12 +171,14 @@ static void __init init_hwif_ns87415 (id
 	u8 stat;
 #endif
 
+printk("init_hwif_ns87415(%s)\n", hwif->pci_dev->slot_name);
 	hwif->autodma = 0;
 	hwif->selectproc = &ns87415_selectproc;
 
+#if 0
 	/* Set a good latency timer and cache line size value. */
 	(void) pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64);
-	/* FIXME: use pci_set_master() to ensure good latency timer value */
+#endif
 
 	/*
 	 * We cannot probe for IRQ: both ports share common IRQ on INTA.
@@ -227,6 +250,8 @@ static void __init init_hwif_ns87415 (id
 
 static ide_pci_device_t ns87415_chipset __devinitdata = {
 	.name		= "NS87415",
+	.init_chipset	= init_chipset_ns87415,
+	.init_iops	= init_iops_ns87415,
 	.init_hwif	= init_hwif_ns87415,
 	.channels	= 2,
 	.autodma	= AUTODMA,
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Hello Carlos,

Sorry to put this stupid question but which kernel did you try to boot? SMP support or not?

(that looks like to me as a pb I encounter with my c110 and a kernel 2.6.5 iirc; this was a ncr53c8xx bug fixed later, sorry I 
didn't remember exactly when :( ).

hth,
	Joel


Carlos Pares, Pere wrote:
> Hi,
> 
>  
> 
> This is what dmesg show me about some hw on my k360 HP box,
> 
>  
> 
> Have you any idea what's going wrong?
> 
>  
> 
> PS/2 psaux port at 0xffd08100 (irq 69) found, no device attached. 
> 
> lp0: using parport0 (interrupt-driven). 
> 
> Generic RTC Driver v1.07 
> 
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize 
> 
> loop: loaded (max 8 devices) 
> 
> Linux Tulip driver version 0.9.15-pre12 (Aug 9, 2002) 
> 
> PCI: Unable to reserve mem region #2:80@2040000 for device 00:01.0 
> 
> PCI: Unable to reserve mem region #2:80@2040000 for device 00:01.0 
> 
> PCI: Unable to reserve I/O region #1:80@40221200 for device 00:02.0 
> 
> PCI: Unable to reserve I/O region #1:80@40221200 for device 00:02.0 
> 
> Found i82596 at 0xffd07000, IRQ 87 
> 
> eth0: 82596 at 0xffd07000, 00 60 B0 C4 A4 F5 IRQ 87. 
> 
> 82596.c $Revision: 1.33 $ 
> 
> Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4 
> 
> ide: Assuming 33MHz system bus speed for PIO modes; override with
> idebus=xx 
> 
> SCSI subsystem driver Revision: 1.00 
> 
> zalon_scsi_callback: Zalon vers field is 0x1, IRQ 35 
> 
> ncr53c8xx: 53c720 detected 
> 
> ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
> 
>  
> 
>  
> 
> Thanks in advance
> 
>  
> 
>  
> 
>  
> 
>  
> 
> 
> 
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On Thu, Sep 16, 2004 at 10:38:12AM -0400, Carlos O'Donell wrote:
> If you have time...
> http://www.parisc-linux.org/toolchain/PARISC-Linux-XC-HOWTO.html
> 
> I recommend Dan Kegel's crosstools and build one using his
> infrastructure please :) His tools autobuild everything and it will take
> only time to compile the tree. I haven't done this myself because I
> don't need an x86->hppa but I might set crosstools to run today on my
> dual cpu box at the office.

Debian doesn't have many cross compilers -- is there a reason for this?
Given the emphasis Debian has on portability, I'm suprised that packages
for x86->* (at the very least) aren't available...
-- 
Stuart Brady
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Subject: [parisc-linux] Re: Need help writing register consistency test?
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> I'm not sure that this is a syscall problem although it might be.  There
> weren't any syscalls between the load for r3 and when it was used as far
> as I can tell.  So, if this is a syscall problem, it would have to be a
> syscall that was done in a signal handler.  The difficulty in writing
> a program such as that suggested above is that it has to somehow test
> all the return paths in the kernel for each syscall.

yeah, possibly it's something in one of the interruption paths.

Dave, do you have any comments on this:
http://marc.theaimsgroup.com/?l=linux-ia64&m=109507921717647&w=2

do you think this could be causing problems for us too? (do you do any
stracing/gdb during your tests?)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: Re: [parisc-linux] [RFC] Optimi[zs]e copy_*_user routines
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Xref: news.gmane.org gmane.linux.ports.parisc:22005

Version 2 of optimized copy routines. Changes compared to the previous
version:

- uses new exception mechanism to get the error semantics right
- cleaned up debugs
- added TODO items

If there are no more comments, i'll check this in in a couple of days.

thanks
randolph

Index: arch/parisc/Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/Makefile,v
retrieving revision 1.14
diff -u -p -r1.14 Makefile
--- arch/parisc/Makefile	15 Sep 2004 14:11:49 -0000	1.14
+++ arch/parisc/Makefile	16 Sep 2004 19:15:54 -0000
@@ -38,7 +38,7 @@ cflags-y	:= -pipe
 cflags-y	+= -mno-space-regs -mfast-indirect-calls
 
 # No fixed-point multiply
-cflags-y	+= -mdisable-fpregs
+#cflags-y	+= -mdisable-fpregs
 
 # Without this, "ld -r" results in .text sections that are too big
 # (> 0x40000) for branches to reach stubs.
Index: arch/parisc/lib/Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/lib/Makefile,v
retrieving revision 1.3
diff -u -p -r1.3 Makefile
--- arch/parisc/lib/Makefile	15 Sep 2004 16:08:48 -0000	1.3
+++ arch/parisc/lib/Makefile	16 Sep 2004 19:15:58 -0000
@@ -2,6 +2,6 @@
 # Makefile for parisc-specific library files
 #
 
-lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o fixup.o
+lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o
 
 lib-$(CONFIG_SMP) += debuglocks.o
Index: arch/parisc/lib/memcpy.c
===================================================================
RCS file: arch/parisc/lib/memcpy.c
diff -N arch/parisc/lib/memcpy.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ arch/parisc/lib/memcpy.c	16 Sep 2004 19:15:58 -0000
@@ -0,0 +1,499 @@
+/*
+ *    Optimized memory copy routines.
+ *
+ *    Copyright (C) 2004 Randolph Chung <tausq@debian.org>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2, or (at your option)
+ *    any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *    Portions derived from the GNU C Library
+ *    Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc.
+ *
+ * Several strategies are tried to try to get the best performance for various
+ * conditions. In the optimal case, we copy 64-bytes in an unrolled loop using 
+ * fp regs. This is followed by loops that copy 32- or 16-bytes at a time using
+ * general registers.  Unaligned copies are handled either by aligning the 
+ * destination and then using shift-and-write method, or in a few cases by 
+ * falling back to a byte-at-a-time copy.
+ *
+ * I chose to implement this in C because it is easier to maintain and debug,
+ * and in my experiments it appears that the C code generated by gcc (3.3/3.4
+ * at the time of writing) is fairly optimal. Unfortunately some of the 
+ * semantics of the copy routine (exception handling) is difficult to express
+ * in C, so we have to play some tricks to get it to work.
+ *
+ * All the loads and stores are done via explicit asm() code in order to use
+ * the right space registers. 
+ * 
+ * Testing with various alignments and buffer sizes shows that this code is 
+ * often >10x faster than a simple byte-at-a-time copy, even for strangely
+ * aligned operands. It is interesting to note that the glibc version
+ * of memcpy (written in C) is actually quite fast already. This routine is 
+ * able to beat it by 30-40% for aligned copies because of the loop unrolling, 
+ * but in some cases the glibc version is still slightly faster. This lends 
+ * more credibility that gcc can generate very good code as long as we are 
+ * careful.
+ *
+ * TODO:
+ * - cache prefetching needs more experimentation to get optimal settings
+ * - try not to use the post-increment address modifiers; they create additional
+ *   interlocks
+ * - replace byte-copy loops with stybs sequences
+ */
+
+#ifdef __KERNEL__
+#include <linux/config.h>
+#include <linux/compiler.h>
+#include <asm/uaccess.h>
+#define s_space "%%sr1"
+#define d_space "%%sr2"
+#else
+#define likely(x)	__builtin_expect(!!(x), 1)
+#define unlikely(x)	__builtin_expect(!!(x), 0)
+#define inline		__inline__ __attribute__((always_inline))
+#define s_space "%%sr0"
+#define d_space "%%sr0"
+#define pa_memcpy new2_copy
+#define L1_CACHE_BYTES 64
+#endif
+
+DECLARE_PER_CPU(struct exception_data, exception_data);
+
+#define preserve_branch(label)	do {					\
+	volatile int dummy;						\
+	/* The following branch is never taken, it's just here to  */	\
+	/* prevent gcc from optimizing away our exception code. */ 	\
+	if (unlikely(dummy != dummy))					\
+		goto label;						\
+} while (0)
+
+#define get_user_space() (segment_eq(get_fs(), KERNEL_DS) ? 0 : mfsp(3))
+
+#define MERGE(w0, sh_1, w1, sh_2) (((w0) << (sh_1)) | ((w1) >> (sh_2)))
+#define THRESHOLD	16
+
+#ifdef DEBUG_MEMCPY
+#define DPRINTF(fmt, args...) do { printk(KERN_DEBUG "%s:%d:%s ", __FILE__, __LINE__, __FUNCTION__ ); printk(KERN_DEBUG fmt, ##args ); } while (0)
+#else
+#define DPRINTF(fmt, args...)
+#endif
+
+#ifndef __LP64__
+#define EXC_WORD ".word"
+#else
+#define EXC_WORD ".dword"
+#endif
+
+#define def_load_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e)	\
+	__asm__ __volatile__ (				\
+	"1:\t" #_insn ",ma " #_sz "(" _s ",%1), %0\n" 	\
+	"\t.section __ex_table,\"aw\"\n"		\
+	"\t" EXC_WORD "\t1b\n"				\
+	"\t" EXC_WORD "\t" #_e "\n"			\
+	"\t.previous\n"					\
+	: "=" #_tt(_t), "+r"(_a)			\
+	: "1"(_a)					\
+	: "r8")
+
+#define def_store_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e) 	\
+	__asm__ __volatile__ (				\
+	"1:\t" #_insn ",ma %1, " #_sz "(" _s ",%0)\n" 	\
+	"\t.section __ex_table,\"aw\"\n"		\
+	"\t" EXC_WORD "\t1b\n"				\
+	"\t" EXC_WORD "\t" #_e "\n"			\
+	"\t.previous\n"					\
+	: "+r"(_a) 					\
+	: #_tt(_t), "0"(_a)				\
+	: "r8")
+
+#define ldbma(_s, _a, _t, _e) def_load_ai_insn(ldbs,1,r,_s,_a,_t,_e)
+#define stbma(_s, _t, _a, _e) def_store_ai_insn(stbs,1,r,_s,_a,_t,_e)
+#define ldwma(_s, _a, _t, _e) def_load_ai_insn(ldw,4,r,_s,_a,_t,_e)
+#define stwma(_s, _t, _a, _e) def_store_ai_insn(stw,4,r,_s,_a,_t,_e)
+#define flddma(_s, _a, _t, _e) def_load_ai_insn(fldd,8,f,_s,_a,_t,_e)
+#define fstdma(_s, _t, _a, _e) def_store_ai_insn(fstd,8,f,_s,_a,_t,_e)
+
+#define ldw(_s,_o,_a,_t,_e) 				\
+	__asm__ __volatile__ (				\
+	"1:\tldw " #_o "(" _s ",%1), %0\n"		\
+	"\t.section __ex_table,\"aw\"\n"		\
+	"\t" EXC_WORD "\t1b\n"				\
+	"\t" EXC_WORD "\t" #_e "\n"			\
+	"\t.previous\n"					\
+	: "=r"(_t) 					\
+	: "r"(_a)					\
+	: "r8")
+
+#define stw(_s,_t,_o,_a,_e) 				\
+	__asm__ __volatile__ (				\
+	"1:\tstw %0, " #_o "(" _s ",%1)\n" 		\
+	"\t.section __ex_table,\"aw\"\n"		\
+	"\t" EXC_WORD "\t1b\n"				\
+	"\t" EXC_WORD "\t" #_e "\n"			\
+	"\t.previous\n"					\
+	: 						\
+	: "r"(_t), "r"(_a)				\
+	: "r8")
+
+#ifdef  CONFIG_PREFETCH
+extern inline void prefetch_src(const void *addr)
+{
+	__asm__("ldw 0(" s_space ",%0), %%r0" : : "r" (addr));
+}
+
+extern inline void prefetch_dst(const void *addr)
+{
+	__asm__("ldd 0(" d_space ",%0), %%r0" : : "r" (addr));
+}
+#else
+#define prefetch_src(addr)
+#define prefetch_dst(addr)
+#endif
+
+/* Copy from a not-aligned src to an aligned dst, using shifts. Handles 4 words
+ * per loop.  This code is derived from glibc. 
+ */
+static inline unsigned long copy_dstaligned(unsigned long dst, unsigned long src, unsigned long len, unsigned long o_dst, unsigned long o_src, unsigned long o_len)
+{
+	/* gcc complains that a2 and a3 may be uninitialized, but actually
+	 * they cannot be.  Initialize a2/a3 to shut gcc up.
+	 */
+	register unsigned int a0, a1, a2 = 0, a3 = 0;
+	int sh_1, sh_2;
+	struct exception_data *d;
+
+	/* prefetch_src((const void *)src); */
+
+	/* Calculate how to shift a word read at the memory operation
+	   aligned srcp to make it aligned for copy.  */
+	sh_1 = 8 * (src % sizeof(unsigned int));
+	sh_2 = 8 * sizeof(unsigned int) - sh_1;
+
+	/* Make src aligned by rounding it down.  */
+	src &= -sizeof(unsigned int);
+
+	switch (len % 4)
+	{
+		case 2:
+			/* a1 = ((unsigned int *) src)[0];
+			   a2 = ((unsigned int *) src)[1]; */
+			ldw(s_space, 0, src, a1, cda_ldw_exc);
+			ldw(s_space, 4, src, a2, cda_ldw_exc);
+			src -= 1 * sizeof(unsigned int);
+			dst -= 3 * sizeof(unsigned int);
+			len += 2;
+			goto do1;
+		case 3:
+			/* a0 = ((unsigned int *) src)[0];
+			   a1 = ((unsigned int *) src)[1]; */
+			ldw(s_space, 0, src, a0, cda_ldw_exc);
+			ldw(s_space, 4, src, a1, cda_ldw_exc);
+			src -= 0 * sizeof(unsigned int);
+			dst -= 2 * sizeof(unsigned int);
+			len += 1;
+			goto do2;
+		case 0:
+			if (len == 0)
+				return 0;
+			/* a3 = ((unsigned int *) src)[0];
+			   a0 = ((unsigned int *) src)[1]; */
+			ldw(s_space, 0, src, a3, cda_ldw_exc);
+			ldw(s_space, 4, src, a0, cda_ldw_exc);
+			src -=-1 * sizeof(unsigned int);
+			dst -= 1 * sizeof(unsigned int);
+			len += 0;
+			goto do3;
+		case 1:
+			/* a2 = ((unsigned int *) src)[0];
+			   a3 = ((unsigned int *) src)[1]; */
+			ldw(s_space, 0, src, a2, cda_ldw_exc);
+			ldw(s_space, 4, src, a3, cda_ldw_exc);
+			src -=-2 * sizeof(unsigned int);
+			dst -= 0 * sizeof(unsigned int);
+			len -= 1;
+			if (len == 0)
+				goto do0;
+			goto do4;			/* No-op.  */
+	}
+
+	do
+	{
+		/* prefetch_src((const void *)(src + 4 * sizeof(unsigned int))); */
+do4:
+		/* a0 = ((unsigned int *) src)[0]; */
+		ldw(s_space, 0, src, a0, cda_ldw_exc);
+		/* ((unsigned int *) dst)[0] = MERGE (a2, sh_1, a3, sh_2); */
+		stw(d_space, MERGE (a2, sh_1, a3, sh_2), 0, dst, cda_stw_exc);
+do3:
+		/* a1 = ((unsigned int *) src)[1]; */
+		ldw(s_space, 4, src, a1, cda_ldw_exc);
+		/* ((unsigned int *) dst)[1] = MERGE (a3, sh_1, a0, sh_2); */
+		stw(d_space, MERGE (a3, sh_1, a0, sh_2), 4, dst, cda_stw_exc);
+do2:
+		/* a2 = ((unsigned int *) src)[2]; */
+		ldw(s_space, 8, src, a2, cda_ldw_exc);
+		/* ((unsigned int *) dst)[2] = MERGE (a0, sh_1, a1, sh_2); */
+		stw(d_space, MERGE (a0, sh_1, a1, sh_2), 8, dst, cda_stw_exc);
+do1:
+		/* a3 = ((unsigned int *) src)[3]; */
+		ldw(s_space, 12, src, a3, cda_ldw_exc);
+		/* ((unsigned int *) dst)[3] = MERGE (a1, sh_1, a2, sh_2); */
+		stw(d_space, MERGE (a1, sh_1, a2, sh_2), 12, dst, cda_stw_exc);
+
+		src += 4 * sizeof(unsigned int);
+		dst += 4 * sizeof(unsigned int);
+		len -= 4;
+	}
+	while (len != 0);
+
+do0:
+	/* ((unsigned int *) dst)[0] = MERGE (a2, sh_1, a3, sh_2); */
+	stw(d_space, MERGE (a2, sh_1, a3, sh_2), 0, dst, cda_stw_exc);
+
+	preserve_branch(handle_load_error);
+	preserve_branch(handle_store_error);
+
+	return 0;
+
+handle_load_error:
+	__asm__ __volatile__ ("cda_ldw_exc:\n");
+	d = &__get_cpu_var(exception_data);
+	DPRINTF("cda_ldw_exc: o_len=%lu fault_addr=%lu o_src=%lu ret=%lu\n",
+		o_len, d->fault_addr, o_src, o_len - d->fault_addr + o_src);
+	return o_len * 4 - d->fault_addr + o_src;
+
+handle_store_error:
+	__asm__ __volatile__ ("cda_stw_exc:\n");
+	d = &__get_cpu_var(exception_data);
+	DPRINTF("cda_stw_exc: o_len=%lu fault_addr=%lu o_dst=%lu ret=%lu\n",
+		o_len, d->fault_addr, o_dst, o_len - d->fault_addr + o_dst);
+	return o_len * 4 - d->fault_addr + o_dst;
+}
+
+
+/* Returns 0 for success, otherwise, returns number of bytes not transferred. */
+unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+{
+	register unsigned long src, dst, t1, t2, t3;
+	register char *pcs, *pcd;
+	register unsigned int *pws, *pwd;
+	register double *pds, *pdd;
+	unsigned long ret = 0;
+	unsigned long o_dst, o_src, o_len;
+	struct exception_data *d;
+
+	src = (unsigned long)srcp;
+	dst = (unsigned long)dstp;
+	pcs = (unsigned char *)srcp;
+	pcd = (unsigned char *)dstp;
+
+	o_dst = dst; o_src = src; o_len = len;
+
+	/* prefetch_src((const void *)srcp); */
+
+	if (unlikely(len == 0))
+		return 0;
+
+	/* Check alignment */
+	t1 = (src ^ dst);
+	if (unlikely(t1 & (sizeof(double)-1)))
+		goto unaligned_copy;
+
+	/* src and dst have same alignment. */
+
+	/* Copy bytes till we are double-aligned. */
+	t2 = src & (sizeof(double) - 1);
+	if (unlikely(t2 != 0)) {
+		t2 = sizeof(double) - t2;
+		while (t2 && len) {
+			/* *pcd++ = *pcs++; */
+			ldbma(s_space, pcs, t3, pmc_load_exc);
+			len--;
+			stbma(d_space, t3, pcd, pmc_store_exc);
+			t2--;
+		}
+	}
+
+	pds = (double *)pcs;
+	pdd = (double *)pcd;
+
+	/* Copy 8 doubles at a time */
+	while (len >= 8*sizeof(double)) {
+		register double r1, r2, r3, r4, r5, r6, r7, r8;
+		/* prefetch_src((char *)pds + L1_CACHE_BYTES); */
+		flddma(s_space, pds, r1, pmc_load_exc);
+		flddma(s_space, pds, r2, pmc_load_exc);
+		flddma(s_space, pds, r3, pmc_load_exc);
+		flddma(s_space, pds, r4, pmc_load_exc);
+		fstdma(d_space, r1, pdd, pmc_store_exc);
+		fstdma(d_space, r2, pdd, pmc_store_exc);
+		fstdma(d_space, r3, pdd, pmc_store_exc);
+		fstdma(d_space, r4, pdd, pmc_store_exc);
+
+#if 0
+		if (L1_CACHE_BYTES <= 32)
+			prefetch_src((char *)pds + L1_CACHE_BYTES);
+#endif
+		flddma(s_space, pds, r5, pmc_load_exc);
+		flddma(s_space, pds, r6, pmc_load_exc);
+		flddma(s_space, pds, r7, pmc_load_exc);
+		flddma(s_space, pds, r8, pmc_load_exc);
+		fstdma(d_space, r5, pdd, pmc_store_exc);
+		fstdma(d_space, r6, pdd, pmc_store_exc);
+		fstdma(d_space, r7, pdd, pmc_store_exc);
+		fstdma(d_space, r8, pdd, pmc_store_exc);
+		len -= 8*sizeof(double);
+	}
+
+	pws = (unsigned int *)pds;
+	pwd = (unsigned int *)pdd;
+
+word_copy:
+	while (len >= 8*sizeof(unsigned int)) {
+		register unsigned int r1,r2,r3,r4,r5,r6,r7,r8;
+		/* prefetch_src((char *)pws + L1_CACHE_BYTES); */
+		ldwma(s_space, pws, r1, pmc_load_exc);
+		ldwma(s_space, pws, r2, pmc_load_exc);
+		ldwma(s_space, pws, r3, pmc_load_exc);
+		ldwma(s_space, pws, r4, pmc_load_exc);
+		stwma(d_space, r1, pwd, pmc_store_exc);
+		stwma(d_space, r2, pwd, pmc_store_exc);
+		stwma(d_space, r3, pwd, pmc_store_exc);
+		stwma(d_space, r4, pwd, pmc_store_exc);
+
+		ldwma(s_space, pws, r5, pmc_load_exc);
+		ldwma(s_space, pws, r6, pmc_load_exc);
+		ldwma(s_space, pws, r7, pmc_load_exc);
+		ldwma(s_space, pws, r8, pmc_load_exc);
+		stwma(d_space, r5, pwd, pmc_store_exc);
+		stwma(d_space, r6, pwd, pmc_store_exc);
+		stwma(d_space, r7, pwd, pmc_store_exc);
+		stwma(d_space, r8, pwd, pmc_store_exc);
+		len -= 8*sizeof(unsigned int);
+	}
+
+	while (len >= 4*sizeof(unsigned int)) {
+		register unsigned int r1,r2,r3,r4;
+		ldwma(s_space, pws, r1, pmc_load_exc);
+		ldwma(s_space, pws, r2, pmc_load_exc);
+		ldwma(s_space, pws, r3, pmc_load_exc);
+		ldwma(s_space, pws, r4, pmc_load_exc);
+		stwma(d_space, r1, pwd, pmc_store_exc);
+		stwma(d_space, r2, pwd, pmc_store_exc);
+		stwma(d_space, r3, pwd, pmc_store_exc);
+		stwma(d_space, r4, pwd, pmc_store_exc);
+		len -= 4*sizeof(unsigned int);
+	}
+
+	pcs = (unsigned char *)pws;
+	pcd = (unsigned char *)pwd;
+
+byte_copy:
+	while (len) {
+		/* *pcd++ = *pcs++; */
+		ldbma(s_space, pcs, t3, pmc_load_exc);
+		stbma(d_space, t3, pcd, pmc_store_exc);
+		len--;
+	}
+
+	return 0;
+
+unaligned_copy:
+	if (len < THRESHOLD)
+		goto byte_copy;
+
+	/* possibly we are aligned on a word, but not on a double... */
+	if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
+		t2 = src & (sizeof(unsigned int) - 1);
+
+		if (unlikely(t2 != 0)) {
+			t2 = sizeof(unsigned int) - t2;
+			while (t2) {
+				/* *pcd++ = *pcs++; */
+				ldbma(s_space, pcs, t3, pmc_load_exc);
+				stbma(d_space, t3, pcd, pmc_store_exc);
+				t2--;
+			}
+		}
+
+		pws = (unsigned int *)pcs;
+		pwd = (unsigned int *)pcd;
+		goto word_copy;
+	}
+
+	/* Align the destination.  */
+	if (unlikely((dst & (sizeof(unsigned int) - 1)) != 0)) {
+		t2 = sizeof(unsigned int) - (dst & (sizeof(unsigned int) - 1));
+		while (t2) {
+			/* *pcd++ = *pcs++; */
+			ldbma(s_space, pcs, t3, pmc_load_exc);
+			stbma(d_space, t3, pcd, pmc_store_exc);
+			len--;
+			t2--;
+		}
+		dst = (unsigned long)pcd;
+		src = (unsigned long)pcs;
+	}
+
+	ret = copy_dstaligned(dst, src, len / sizeof(unsigned int), 
+		o_dst, o_src, o_len);
+	if (ret)
+		return ret;
+
+	pcs += (len & -sizeof(unsigned int));
+	pcd += (len & -sizeof(unsigned int));
+	len %= sizeof(unsigned int);
+
+	preserve_branch(handle_load_error);
+	preserve_branch(handle_store_error);
+
+	goto byte_copy;
+
+handle_load_error:
+	__asm__ __volatile__ ("pmc_load_exc:\n");
+	d = &__get_cpu_var(exception_data);
+	DPRINTF("pmc_load_exc: o_len=%lu fault_addr=%lu o_src=%lu ret=%lu\n",
+		o_len, d->fault_addr, o_src, o_len - d->fault_addr + o_src);
+	return o_len - d->fault_addr + o_src;
+
+handle_store_error:
+	__asm__ __volatile__ ("pmc_store_exc:\n");
+	d = &__get_cpu_var(exception_data);
+	DPRINTF("pmc_store_exc: o_len=%lu fault_addr=%lu o_dst=%lu ret=%lu\n",
+		o_len, d->fault_addr, o_dst, o_len - d->fault_addr + o_dst);
+	return o_len - d->fault_addr + o_dst;
+}
+
+#ifdef __KERNEL__
+unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len)
+{
+	mtsp(0, 1);
+	mtsp(get_user_space(), 2);
+	return pa_memcpy(dst, src, len);
+}
+
+unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len)
+{
+	mtsp(get_user_space(), 1);
+	mtsp(0, 2);
+	return pa_memcpy(dst, src, len);
+}
+
+unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len)
+{
+	mtsp(get_user_space(), 1);
+	mtsp(get_user_space(), 2);
+	return pa_memcpy(dst, src, len);
+}
+#endif
Index: include/asm-parisc/uaccess.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/uaccess.h,v
retrieving revision 1.16
diff -u -p -r1.16 uaccess.h
--- include/asm-parisc/uaccess.h	15 Sep 2004 16:08:48 -0000	1.16
+++ include/asm-parisc/uaccess.h	16 Sep 2004 19:16:21 -0000
@@ -267,12 +267,12 @@ extern long lstrnlen_user(const char __u
 #define clear_user lclear_user
 #define __clear_user lclear_user
 
-#define copy_from_user lcopy_from_user
-#define __copy_from_user lcopy_from_user
-#define copy_to_user lcopy_to_user
-#define __copy_to_user lcopy_to_user
-#define copy_in_user lcopy_in_user
-#define __copy_in_user lcopy_in_user
+unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len);
+#define __copy_to_user copy_to_user
+unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len);
+#define __copy_from_user copy_from_user
+unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len);
+#define __copy_in_user copy_in_user
 #define __copy_to_user_inatomic __copy_to_user
 #define __copy_from_user_inatomic __copy_from_user
 
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Xref: news.gmane.org gmane.linux.ports.parisc:22006

> > > Why isn't this the debug ld.so?
> > 
> > dave@gsyprf11:~/gcc-4.0$ ll /usr/lib/debug/ld.so.1
> > lrwxr-xr-x  1 root root 11 Sep 12 22:15 /usr/lib/debug/ld.so.1 ->
> ld-2.3.2.so
> 
> Yes, but that isn't what you are using.

Doh, I'm using the default set by ld.  This can be changed using
the --dynamic-linker file option.

> > Makes life difficult, hey :(  However, I'm only seeing this stuff
> > with 64-bit kernels.
> 
> Or is it that only 64-bit boxes are fast enough to expose a race
> condition?

I doubt it's a speed issue as my c3750 has a faster cpu.  However,
it could be a SMP problem.

> > > So you are saying that the code should have given that value, but
> > > something corrupted the value before it was used?
> > 
> > Yes.
> 
> That is a very interesting hypothesis. It looks like the bug I used to
> track down with r19 corruption only under certain return paths of fork
> in the kernel. I'll be frank it takes some serious debugging.
> 
> -- Help Needed! --
> 
> There are only 235 syscalls, some of which don't need to be tested, only
> a small fraction could be tested with some special program? A program
> that would check for register value consistency across the call?
> This would have caught our r19 corruption through fork, perhaps there
> are other temp register uses that clobber a single register? It would be
> a starting place.

I'm not sure that this is a syscall problem although it might be.  There
weren't any syscalls between the load for r3 and when it was used as far
as I can tell.  So, if this is a syscall problem, it would have to be a
syscall that was done in a signal handler.  The difficulty in writing
a program such as that suggested above is that it has to somehow test
all the return paths in the kernel for each syscall.

Had another SEGV building GCC last night of gsyprf11.

I certainly agree that this type of problem needs some serious debugging.
I think logging of SEGVs is somewhat broken.  It looks like kernel logging
stops when /var fills up and doesn't automatically restart when the problem
is cleared.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Dave, do you have any comments on this:
> http://marc.theaimsgroup.com/?l=linux-ia64&m=109507921717647&w=2
> 
> do you think this could be causing problems for us too? (do you do any
> stracing/gdb during your tests?)

No, but the symptoms seem similar.  I had one failure in the return
from pipe.  It's possible that some of the gcj SEGVs follow a pipe
syscall.

The fix was to compile with -fno-optimize-sibling-calls.  In recent
versions of GCC, we allow sibcalls for 32-bit code but not for
64-bit code.  This is because the arg pointer isn't a fixed register
in the 64-bit runtime and because the linker does a crappy job of
stub placement.

In spite of the fact that sibcalls are not ok in the 64-bit runtime,
I think there are still situations where gcc will generate sibcalls.
For example, in gcc 4.0, the gcc.dg/sibcall-[12].c tests now pass.
Self-recursion tail calls are optimized for all targets regardless of
the presence of sibcall patterns.

The ia64 GCC fix was to return false in ia64_function_ok_for_sibcall
if the function has the syscall_linkage attribute.  As I noted above,
we always return false on hppa64.  So, if we have a sibcall problem,
it has to be in a self-recursion tail call.

I'm fairly sure that sibcalls have always been disabled on hppa64
in the released versions of GCC.  I'm not sure about 3.0.4.  Alan
Modra was experimenting with them.

Are we using the syscall_linkage attribute?  This could be an issue
on the 32-bit port where sibcalls are enabled.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: NS87415 on C3K broken
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On Thursday 16 September 2004 18:17, Grant Grundler wrote:
> Hi,
> Willy pointed out the 2.6.9-rc2 NS87415 driver for C3000 machine
> (uses SuckyIO IDE) is causing HPMC (system crash). This was not
> a problem with 2.6.8.1.
> But while trying to fix MMIO resource management problems, I ran
> into this when testing on C3000.
> 
> The HPMC stack trace looks like this:
> 	ide_inb
> 	ide_wait_not_busy
> 	wait_hwif_ready
> 	probe_hwif
> 	probe_hwif_init
> 	ide_setup_pci_device
> 	ns87415_init_one
> 	ide_scan_pcidev
> 	ide_scan_pcibus
> 	ide_init
> 	do_initcalls
> 
> Changes to ide-probe.c cause this HPMC.
> wait_hwif_ready() is inside #ifdef CONFIG_PPC in 2.6.8.1 and the
> ifdef/endif was removed in 2.6.9-rcX. The result is inb() is invoked
> *BEFORE* ide_setup_pci_device() (indirectly) calls pci_enabled_device() or
> pci_set_master(). This is broken because IDE controllers NOT enabled
> by firmware will simply not respond to inb() (even if the system
> doesn't crash like on parisc).

I don't think ide-probe.c changes are the cause of HPMC.

probe_hwif_init() is only called after PCI device is fully setup,
see ide_setup_pci_device().

> I'm a wimp. I don't dare to restructure IDE init sequence.
> Anyone less of a wimp?
> Or are IDE pci drivers required to call pci_enable_device()
> in their (mostly non-extistent) init_chipset entry point?

ide_setup_pci_controller()
	-> ide_pci_enable()
		-> pci_enable_device()

and ide_setup_pci_controller() is called at the beginning
of ide_setup_pci_device() before ->init_chipset()

Ideally this should be done by host drivers
but moving this out of setup-pci.c is non-trivial.

> Anyway, ns87415 driver has more problems. The patch below adds
> "init_chipset" entry point and init_chipset_ns87415() calls
> pci_enable_device() and pci_set_master() before the probe.
> And my C3k still HPMCs. My guess is more of the code from
> init_hwif_ns87415() needs to be moved to init_chipset_ns87415().
> And possible call some special suckyio init routines.
> I won't be able to touch this for a few days.
> Anyone else on parisc-linux ml want to take a whack at this?
> 
> BTW, normally a PCI Master Abort to IO Port space to should NOT fail.
> But on parisc is does because the chipset will go "fatal" on
> any Master Abort - special hacks enable config space to work.
> I strongly prefere not to add those hacks to IO Port space
> accessor functions since it's normally not a problem.
> And while inconvenient, this behavior does expose programming
> problems like the one above.

Yep, also if they are to stay please move them to ns87415.c
because using <linux/ide.h> outside drivers/ide is WRONG.

> 
> thanks,
> grant
> 
> 
> Index: drivers/ide/pci/ns87415.c
> ===================================================================
> RCS file: /var/cvs/linux-2.6/drivers/ide/pci/ns87415.c,v
> retrieving revision 1.17
> diff -u -p -r1.17 ns87415.c
> --- drivers/ide/pci/ns87415.c	13 Sep 2004 15:23:04 -0000	1.17
> +++ drivers/ide/pci/ns87415.c	16 Sep 2004 15:06:06 -0000
> @@ -133,8 +133,29 @@ static int ns87415_ide_dma_check (ide_dr
>  	return __ide_dma_check(drive);
>  }
>  
> +static unsigned int __devinit init_chipset_ns87415(struct pci_dev *dev, const char *name)
> +{
> +	unsigned short w;
> +printk("init_chipset_ns87415(%s,%s)\n", dev->slot_name, name);
> +
> +	pci_enable_device(dev);
> +	pci_set_master(dev);
> +
> +(void) pci_read_config_word(dev, PCI_COMMAND, &w);
> +printk("	cmd 0x%x\n", w);
> +
> +	if ((w & PCI_COMMAND_IO) == 0) {
> +		w |= PCI_COMMAND_IO;
> +		(void) pci_write_config_word(dev, PCI_COMMAND, w);
> +printk("	enabling IO space\n");
> +	}
> +	return 0;
> +}
> +
> +
>  static void __init init_iops_ns87415(ide_hwif_t *hwif)
>  {
> +printk("init_iops_ns87415(%s)\n", hwif->pci_dev->slot_name);
>  #ifdef CONFIG_SUPERIO
>  	superio_ide_init_iops(hwif);
>  #endif
> @@ -150,12 +171,14 @@ static void __init init_hwif_ns87415 (id
>  	u8 stat;
>  #endif
>  
> +printk("init_hwif_ns87415(%s)\n", hwif->pci_dev->slot_name);
>  	hwif->autodma = 0;
>  	hwif->selectproc = &ns87415_selectproc;
>  
> +#if 0
>  	/* Set a good latency timer and cache line size value. */
>  	(void) pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64);
> -	/* FIXME: use pci_set_master() to ensure good latency timer value */
> +#endif
>  
>  	/*
>  	 * We cannot probe for IRQ: both ports share common IRQ on INTA.
> @@ -227,6 +250,8 @@ static void __init init_hwif_ns87415 (id
>  
>  static ide_pci_device_t ns87415_chipset __devinitdata = {
>  	.name		= "NS87415",
> +	.init_chipset	= init_chipset_ns87415,
> +	.init_iops	= init_iops_ns87415,
>  	.init_hwif	= init_hwif_ns87415,
>  	.channels	= 2,
>  	.autodma	= AUTODMA,
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] Re: NS87415 on C3K broken
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On Fri, Sep 17, 2004 at 12:50:15AM +0200, Bartlomiej Zolnierkiewicz wrote:
> I don't think ide-probe.c changes are the cause of HPMC.
> 
> probe_hwif_init() is only called after PCI device is fully setup,
> see ide_setup_pci_device().

Sorry - you are right. I overlooked the first line of:
void ide_setup_pci_device (struct pci_dev *dev, ide_pci_device_t *d)
{
        ata_index_t index_list = do_ide_setup_pci_device(dev, d, 1);
...

and only saw the probe_hwif_init() calls that follow.
*sigh*.

> ide_setup_pci_controller()
> 	-> ide_pci_enable()
> 		-> pci_enable_device()
> 
> and ide_setup_pci_controller() is called at the beginning
> of ide_setup_pci_device() before ->init_chipset()

Yes - I tracked the pci_enabled_device back to ide_setup_pci_controller().
But I just realized I had another brainfart: ide_setup_pci_controller()
is not ide_setup_pci_device(). I should stop coding late at night...

> Ideally this should be done by host drivers
> but moving this out of setup-pci.c is non-trivial.

Yes - I reached the same conclusion.

> > Anyway, ns87415 driver has more problems. The patch below adds
> > "init_chipset" entry point and init_chipset_ns87415() calls
> > pci_enable_device() and pci_set_master() before the probe.
> > And my C3k still HPMCs. My guess is more of the code from
> > init_hwif_ns87415() needs to be moved to init_chipset_ns87415().
> > And possible call some special suckyio init routines.
> > I won't be able to touch this for a few days.
> > Anyone else on parisc-linux ml want to take a whack at this?
...
> Yep, also if they are to stay please move them to ns87415.c
> because using <linux/ide.h> outside drivers/ide is WRONG.

they? superio_ide_init_iops() or something else?
Willy mentioned that as a TODO item and it's on my list.
But I didn't plan on touching that before the HPMC is resolved
or the PCI resource mgt issues are resolved.

thanks for the correction,
grant
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On Friday 17 September 2004 01:25, Grant Grundler wrote:
> > ide_setup_pci_controller()
> > 	-> ide_pci_enable()
> > 		-> pci_enable_device()
> > 
> > and ide_setup_pci_controller() is called at the beginning
> > of ide_setup_pci_device() before ->init_chipset()
> 
> Yes - I tracked the pci_enabled_device back to ide_setup_pci_controller().
> But I just realized I had another brainfart: ide_setup_pci_controller()
> is not ide_setup_pci_device(). I should stop coding late at night...

Heh.

> > > Anyway, ns87415 driver has more problems. The patch below adds
> > > "init_chipset" entry point and init_chipset_ns87415() calls
> > > pci_enable_device() and pci_set_master() before the probe.
> > > And my C3k still HPMCs. My guess is more of the code from
> > > init_hwif_ns87415() needs to be moved to init_chipset_ns87415().
> > > And possible call some special suckyio init routines.
> > > I won't be able to touch this for a few days.
> > > Anyone else on parisc-linux ml want to take a whack at this?
> ...
> > Yep, also if they are to stay please move them to ns87415.c
> > because using <linux/ide.h> outside drivers/ide is WRONG.
> 
> they? superio_ide_init_iops() or something else?

They.

> Willy mentioned that as a TODO item and it's on my list.
> But I didn't plan on touching that before the HPMC is resolved
> or the PCI resource mgt issues are resolved.

OK, thanks.
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Subject: [parisc-linux] Anyone want to write a register across syscall
	consistency checker?
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pa,

Would someone like to write a program that does the following?


main
        for all syscalls
                setup syscall parameters
                save register state
                call syscall
                compare register state to previous saved
                if different then print difference
        end for
end main

This would be a nice tool :)
It would have caught our previous pic register corruption, and it might
reveal any other problems we might have in our syscall paths. It also
gets you very familiar with Linux syscalls!

c.

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> What tests have you run against this?
> I think the original version was pretty stable on my 32-bit UP c3k.
> Included kernel compiles and some lws tests.

i've done kernel compiles at various -j levels, and run some lmbench
benchmarks. 

as you know, there's also a memcpy testsuite that verified the main
copying algorithm for various block sizes and alignments.

i also have a small test program that is able to exercise the 
exception cases in the code, so i've tested the various load/store 
exception cases in the two functions (pa_memcpy and copy_dstaligned).

currently, the exception test program is a bit indirect (it requires a
lot of manual work). i have an idea for a better automated testsuite
which still needs to be implemented.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] [RFC] Optimi[zs]e copy_*_user routines
Date: Fri, 17 Sep 2004 12:23:30 -0400
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To: Randolph Chung <randolph@tausq.org>
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Randolph,

> i've done kernel compiles at various -j levels, and run some lmbench
> benchmarks. 

Good.

> as you know, there's also a memcpy testsuite that verified the main
> copying algorithm for various block sizes and alignments.

Yup. I ran those first.

> i also have a small test program that is able to exercise the 
> exception cases in the code, so i've tested the various load/store 
> exception cases in the two functions (pa_memcpy and copy_dstaligned).

Cool, that's the most important cases to test. My lws testcase exercises
teh exception code, but obviously not the exception cases in pa_memcpy
and copy_dstaligned.

> currently, the exception test program is a bit indirect (it requires a
> lot of manual work). i have an idea for a better automated testsuite
> which still needs to be implemented.

Kernel module? :)

If you did it in C it could be used for a lot of arches.

c.

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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] i386 cross-compiler for hppa/hppa64 ?
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Hi all,

On Thursday 16 September 2004 16:38, Carlos O'Donell wrote:
> > The cross-compiler section on the parisc homepage at http://parisc-linux.org/software/index.html#xcs links to 
> > http://ftp.parisc-linux.org/x86-xcompilers/   and  
> > ESIEE Team's download page at http://www.pateam.org/download.html#deb
> 
> If you have time...
> http://www.parisc-linux.org/toolchain/PARISC-Linux-XC-HOWTO.html

Even without the above URL I was able to build myself a x86-hppa crosscompiler :-)

It's available here for download now (~26MB):
ftp://ftp.parisc-linux.org/x86-xcompilers/xc-20040917-hppa32.tgz

Some notes:
- x86 -> hppa (32bit only!)
- based on DEBIAN's hppa binutils and gcc3.3 packages (look at the README in the archive)
- only for cross-compiling Linux kernels
- unpack in /opt and add /opt/palinux33/bin to your $PATH

Helge
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [BUG] 2.6.9-rc2-pa5 panic in poll_freewait+0x58
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I was running dselect "update" operation when it panic'd.

Since this is a graphical console. Here are some of the data by hand.

Code 15 (addr=6f000004)

PSW: BC QPDI (bits set in PSW)

r00-03  00000000 103e3aac 1017adb8 4c4dafec
r04-07  4c4db008 6f000004 00000009 00000104
...
r20-23  10dadb78 103e3c20 0000000f 0000000f
r24-27  00000314 00000000 10dadb60 103c2010
r28-31  00000104 98a50c80 4d974280 1017b224
sr0-3   00000000 00000f13 00000000 00000efe
sr4-7   all zero

IASQ: zero
IOAQ: 1017adbc 1017ad84
IIR:  0ca81083
CR30 4d974000 CR31 10490000
IOAQ[0]: poll_freewait+0x58/0x70
IOAQ[1]: poll_freewait+0x20/0x70
RP(r2): poll_freewait+0x54/0x70


My guess is it panic'd on the delay slot of a branch insn.


I'm also wondering now how I built this kernel.
Kind of odd to file a "fails to build" (64-bit) and
a "BUG/panic" against the same revision.

But the login message (via ssh) was:
grundler@ob500:~$ ssh 192.168.3.3
Enter passphrase for key '/home/grundler/.ssh/id_rsa': 
Linux gggc3k 2.6.9-rc2-pa5 #9 Sat Sep 18 21:10:49 PDT 2004 parisc GNU/Linux
No mail.
...


hth,
grant
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> > I thought it was just my config that failed to build -pa5
> > until I looked at:
> > 	http://cvs.parisc-linux.org/download/linux-2.6/
> 
> sigh, it's a problem with gcc-3.0....

Does the problem affect currently active branches?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] kernel crash in free_block? (c3k, 32-bit, UP)
Date: Sun, 19 Sep 2004 22:23:37 -0400
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pa,

Configured with: ../src/configure -v
--enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info
--with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared
--with-system-zlib --enable-nls --without-included-gettext
--enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu
--enable-debug --enable-java-gc=boehm --enable-java-awt=xlib
--enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.3.4 (Debian 1:3.3.4-5)

2.6.9-rc2-pa6, C3000, 32-bit UP (PA7300LC optimized).

Kernel crashed during heavy disk load.

Backtrace:
 [<1014a498>] drain_array_locked+0x90/0xc4
 [<1014a568>] cache_reap+0x9c/0x20c
 [<101389a8>] worker_thread+0x1ac/0x278
 [<1013d420>] kthread+0xdc/0xe4
 [<1010dc5c>] ret_from_kernel_thread+0x1c/0x24

Kernel Fault: Code=15 regs=10ff42c0 (Addr=b4d7fcf0)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110 Not tainted
r00-03  00000000 1049b810 1014a498 00000008
r04-07  4fc7d2e0 4fc7d2ec 4fe21014 f0000000
r08-11  1049b810 00200200 00100100 4fc7d2fc
r12-15  00200000 00100000 103b2010 10490010
r16-19  f00008c4 f000017c f0000174 b4d7fcec
r20-23  4fc7d2ec 2b5a7000 00000011 10343fe0
r24-27  00000008 4fe21010 2b5a7214 10398010
r28-31  4ff620d0 00000002 10ff42c0 1014a5bc
sr0-3   00000000 000000d9 00000000 000000d9
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10149c08 10149c0c
 IIR: 0e741288    ISR: 00000000  IOR: b4d7fcf0
 CPU:        0   CR30: 10ff4000 CR31: 1042c000
 ORIG_R28: 00000000
 IAOQ[0]: free_block+0x90/0x158
 IAOQ[1]: free_block+0x94/0x158
 RP(r2): drain_array_locked+0x90/0xc4
Kernel panic - not syncing: Kernel Fault

The fault address is a bit weird.

c.
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] 
	kernel crash in cache_alloc_refill (a500, 64-bit, UP)
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pa,

My kernels are being less than stable...
This is recent. Something has recently changed?
Any thoughts?

firin login: Backtrace:
 [<0000000010184e38>] kmem_cache_alloc+0x68/0x70
 [<00000000101b6664>] alloc_buffer_head+0x2c/0x90
 [<000000001022a980>] journal_write_metadata_buffer+0x88/0x8a8
 [<00000000102242f4>] journal_commit_transaction+0x7fc/0x2778
 [<000000001022a460>] kjournald+0x150/0x370
 [<000000001010647c>] ret_from_kernel_thread+0x24/0x38

Bad Address (null pointer deref?): Code=15 regs=000000006d2ec8f0 (Addr=4000000066354008)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Not tainted
r00-03  0000000000000000 0000000010597100 00000000123d8ce8 000000000000000b
r04-07  0000000000000001 00000000123da000 00000000123d8bc0 00000000123d8cc8
r08-11  00000000123db000 00000000123d8d28 0000000000000850 000000006f702a40
r12-15  000000006d2ec508 0000000000330226 0000000000000000 0000000000000000
r16-19  0000000000000000 000000006ddfd06c 0000000000000f94 00000000123d8cc8
r20-23  7364650066354000 000000000000002c 0000000000000031 000000006637e000
r24-27  000000000000000a 000000006637e028 00000000123da010 0000000010516e80
r28-31  0000000000200200 0000000000100100 000000006d2ec8f0 00000000123d8cd8
sr0-3   0000000004c47000 0000000000000000 0000000000000000 0000000004c47000
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010184934 0000000010184938
 IIR: 0e9312d0    ISR: 0000000033646500  IOR: 4000000066354008
 CPU:        0   CR30: 000000006d2ec000 CR31: 00000000104e0000
 ORIG_R28: 000000005b4c1ab8
 IAOQ[0]: cache_alloc_refill+0x164/0x330
 IAOQ[1]: cache_alloc_refill+0x168/0x330
 RP(r2): 0x123d8ce8
Kernel panic - not syncing: Bad Address (null pointer deref?)
 <0>Rebooting in 180 seconds..

c.

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Subject: Re: [parisc-linux] kernel crash in cache_alloc_refill (a500, 64-bit,
	UP)
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On Sun, Sep 19, 2004 at 10:45:07PM -0400, Carlos O'Donell wrote:
> pa,
> 
> My kernels are being less than stable...
> This is recent. Something has recently changed?
> Any thoughts?

2.6.8.1-pa7 continues to be very stable.
Something is clobbering the free list maybe?

> firin login: Backtrace:
>  [<0000000010184e38>] kmem_cache_alloc+0x68/0x70
>  [<00000000101b6664>] alloc_buffer_head+0x2c/0x90
>  [<000000001022a980>] journal_write_metadata_buffer+0x88/0x8a8
>  [<00000000102242f4>] journal_commit_transaction+0x7fc/0x2778
>  [<000000001022a460>] kjournald+0x150/0x370
>  [<000000001010647c>] ret_from_kernel_thread+0x24/0x38

Ditto. I just crashed my c3k again with 2.6.9-rc2-pa6.
I would like to verify if -pa4 was more stable.

I was trying to update the pa8800 chroot env on that box.
data page fault occurred while dselect was downloading
packages. Last tty output was:
...
Get:103 http://mirrors.kernel.org testing/main build-essential 10.1 [6534B]    
Get:104 http://mirrors.kernel.org testing/main cvs 1:1.12.9-4 [1474kB]         
44% [104 cvs 406303/1474kB 27%]                                   387kB/s 3m31s

(out of 327 packages to be upgraded)

Stack trace is similar in that it starts with:
	kmem_cache_alloc+0x48
	alloc_buffer_head_0x1c
	create_buffers+0x44
	create_empty_buffers+0x1c
	__block_prepare_write+0x440
	block_prepare_write+0x2c
	ext3_prepare_write+0x80
	generic_file_buffered_write+0x1cc
	generic_file_aio_write_nolock+0x264
	generic_file_aio_write+0x88
	ext3_file_write+0x34
	do_sync_write+0xb4
	vfs_write+0xd8
	sys_write+0x58
	syscall_exit+0x0

> Bad Address (null pointer deref?): Code=15 regs=000000006d2ec8f0 (Addr=4000000066354008)

Kernel Fault: Code=15 regs=46b3c8c0 (Addr=b5feec50)

>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001001111111100001110 Not tainted

same

> r00-03  0000000000000000 0000000010597100 00000000123d8ce8 000000000000000b
> r04-07  0000000000000001 00000000123da000 00000000123d8bc0 00000000123d8cc8
> r08-11  00000000123db000 00000000123d8d28 0000000000000850 000000006f702a40
> r12-15  000000006d2ec508 0000000000330226 0000000000000000 0000000000000000
> r16-19  0000000000000000 000000006ddfd06c 0000000000000f94 00000000123d8cc8
> r20-23  7364650066354000 000000000000002c 0000000000000031 000000006637e000
> r24-27  000000000000000a 000000006637e028 00000000123da010 0000000010516e80
> r28-31  0000000000200200 0000000000100100 000000006d2ec8f0 00000000123d8cd8
> sr0-3   0000000004c47000 0000000000000000 0000000000000000 0000000004c47000
> sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

r00-03  00000000 104f3010 10feec5c 10ff5000
r04-07  10feec4c 10feec40 00000001 00000050
...
r20-23  b5feec4c 0000004e 0000004d 3fedd000
r24-27  3fedd018 0000002a 10ff5010 103c2010
...

> IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010184934 0000000010184938
>  IIR: 0e9312d0    ISR: 0000000033646500  IOR: 4000000066354008
>  CPU:        0   CR30: 000000006d2ec000 CR31: 00000000104e0000
>  ORIG_R28: 000000005b4c1ab8
>  IAOQ[0]: cache_alloc_refill+0x164/0x330
>  IAOQ[1]: cache_alloc_refill+0x168/0x330

Yes - identical IOAQ.

hth,
grant
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In reference to a message from John David Anglin, dated Sep 19:
> > > I thought it was just my config that failed to build -pa5
> > > until I looked at:
> > > 	http://cvs.parisc-linux.org/download/linux-2.6/
> > 
> > sigh, it's a problem with gcc-3.0....
> 
> Does the problem affect currently active branches?

no, i don't think so.

the problem is that gcc doesn't seem to like an asm() output specifier
that contains multiple quoted strings... so this doesn't work:

asm("" : "=" "r"(x))

but this does:
asm("" : "=r"(x))

with gcc-3.3, both forms are ok.

randolph
-- 
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http://www.tausq.org/
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Subject: [parisc-linux] interesting linker behaviour :)
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willy found a problem this morning with the exception code which was
traced down to the following:

the following code comes from lusercopy.S (with macros expanded):

lstrncpy_from_user:
        .proc
        .callinfo NO_CALLS
        .entry
        comib,=     0,%r24,$lsfu_done
        copy        %r24,%r23
        get_sr
1:      ldbs,ma     1(%sr1,%r25),%r1
$lsfu_loop:
        stbs,ma     %r1,1(%r26)
        comib,=,n   0,%r1,$lsfu_done
        addib,<>,n  -1,%r24,$lsfu_loop
2:      ldbs,ma     1(%sr1,%r25),%r1
$lsfu_done:
        sub         %r23,%r24,%r28
$lsfu_exit:
        bv          %r0(%r2)
        nop
        .exit

        .section .fixup,"ax"
3:      b $lsfu_exit
        ldi         -EFAULT,%r28
        .previous

        .section __ex_table,"aw"
        .word       1b,3b
        .word       2b,3b
        .previous

        .procend

what is supposed to happen is that when a fault happens at "1:", we
would branch to "3:". The code in "3:" sets the return value to -EFAULT
and branches back to the exit path.

what we observed was that when a fault happens, we get an endless loop
of faults.

when i disassembled the code at 3:, i see:

1038ce68:       e8 05 00 7d     b,l 10357eac <tcpdiag_dump+0x5ac>,r0
1038ce6c:       34 1c 3f e5     ldi -e,ret0

the target of the branch is a long branch stub:

10357eac:       20 20 02 02     ldil 10100000,r1
10357eb0:       e0 20 22 b2     be,n 158(sr4,r1)

but 10100158 is lstrncpy_from_user, not $lsfu_exit:
10100158 <lstrncpy_from_user>
10100190 <$lsfu_exit>

i wonder if the sections are somehow confusing things.... this is with
fairly recent gcc/binutils toolchains, for 32-bit.

randolph
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http://www.tausq.org/
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Subject: Re: [parisc-linux] interesting linker behaviour :)
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On Tue, Sep 21, 2004 at 10:22:45AM -0700, Randolph Chung wrote:
> but 10100158 is lstrncpy_from_user, not $lsfu_exit:
> 10100158 <lstrncpy_from_user>
> 10100190 <$lsfu_exit>
> 
> i wonder if the sections are somehow confusing things.... this is with
> fairly recent gcc/binutils toolchains, for 32-bit.

Multiple entry points to a function may not work if an import stub is
required? The import stubs are thrown into a hash, and it probably
thinks it's okay for you to use the same import stub. You on the other
want a second entry point.

I recommend you give the exit it's own symbol, .export and .import the
linker thinks it's two different functions?

c.

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On Tue, Sep 21, 2004 at 01:43:54PM -0400, Carlos O'Donell wrote:
> On Tue, Sep 21, 2004 at 10:22:45AM -0700, Randolph Chung wrote:
> > but 10100158 is lstrncpy_from_user, not $lsfu_exit:
> > 10100158 <lstrncpy_from_user>
> > 10100190 <$lsfu_exit>
> > 
> > i wonder if the sections are somehow confusing things.... this is with
> > fairly recent gcc/binutils toolchains, for 32-bit.
> 
> Multiple entry points to a function may not work if an import stub is
> required? The import stubs are thrown into a hash, and it probably
> thinks it's okay for you to use the same import stub. You on the other
> want a second entry point.
> 
> I recommend you give the exit it's own symbol, .export and .import the
> linker thinks it's two different functions?

Wow. I need to stop and re-read my emails.

a. Multiple entry points to a function, and import stubs probably don't
   mix well.

b. Define a symbol for lsfu_exit, .export it, then .import it later
   and branch to that symbol. We want the linker to think it's two
   different functions.

I think that is clearer? :)

c.

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> On Tue, Sep 21, 2004 at 10:22:45AM -0700, Randolph Chung wrote:
> > but 10100158 is lstrncpy_from_user, not $lsfu_exit:
> > 10100158 <lstrncpy_from_user>
> > 10100190 <$lsfu_exit>
> > 
> > i wonder if the sections are somehow confusing things.... this is with
> > fairly recent gcc/binutils toolchains, for 32-bit.
> 
> Multiple entry points to a function may not work if an import stub is
> required? The import stubs are thrown into a hash, and it probably
> thinks it's okay for you to use the same import stub. You on the other
> want a second entry point.
> 
> I recommend you give the exit it's own symbol, .export and .import the
> linker thinks it's two different functions?

Good catch!  I've hit this problem before but under HP-UX.  GAS doesn't
support the alternate entry point fixup needed to support multiple
entry points to a function.  I don't think anyone has tried to support
this with the ELF tools.  There could be some nasty interactions with
the HP unwind data when you start adding multiple entry points to a
function.

I haven't looked at this in detail but possibly you can change the
fixup table to contain pc-relative offsets.  I looked at this
when I reworked the casesi pattern in GCC a few months ago.  This
makes the table smaller and in many cases the number of instructions
is less than that with branches in the table (particularly for the
PIC case).  I ended up putting the table in the same section as the
text since in that case the offsets were absolute.  However, I did
look at putting the offsets in readonly data.  This is where I came
up with the method to create 32 and 64-bit pc-relative offsets.  It
takes a couple of extra instructions to load the address of a table
that's in a different section.  As a side, I believe that only 32-bit
offsets are needed in the 64-bit runtime.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > I haven't looked at this in detail but possibly you can change the
> > fixup table to contain pc-relative offsets.  I looked at this
> > when I reworked the casesi pattern in GCC a few months ago.  This
> > makes the table smaller and in many cases the number of instructions
> > is less than that with branches in the table (particularly for the
> > PIC case).  
> 
> well, this is what we used to do, but we don't do this now because it
> requires us to be able to do a pc-relative calculation between code in
> two different sections (text and fixup), and GAS doesn't allow that
> either.

GAS does allow you to do it.  If you look in GCC, you will see that we
use the special assembler symbol $PIC_pcrel$0 to create pc-relative
relocations.  To create a jump table with 32-bit pc-relative relocations,
you would do something like this:

L$0:
	.word L$1+(.+8-L$0)-$PIC_pcrel$0
	.word L$2+(.+8-L$0)-$PIC_pcrel$0
	...

The assembler is sensitive to the ordering of the terms in the expression.

Basically, $PIC_pcrel$0 == .+8 in each expression, so you are just left
with the difference of labels in the final evaluation.  Note that (.+8-L$0)
evaluates to an absolute constant.  Thus, the first two terms are just a
symbol plus a constant addend.  GAS will allow that.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> for now i'm using the solution we are using for 64-bit code, which is to
> use a manually created long-branch stub (ldil/ldo/bv). since this is 
> anyway in a slow-path the performance hit is probably negligible.

As I suggested before, you can shorten (ldil/ldo/bv) to (ldil/be) if
if you know which space register to use in the be (in user space, %sr4
will always work since the address space is flat).

The linker doesn't insert stubs for the (ldil/be) sequence although
possibly it should.

The code sequence to handle 32-bit pc-relative offsets is going to
be longer than either of the above two sequences.  So, possibly you
would only want to go this route if the table is large.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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Subject: Re: [parisc-linux] interesting linker behaviour :)
Date: Tue, 21 Sep 2004 13:36:51 -0700
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> As I suggested before, you can shorten (ldil/ldo/bv) to (ldil/be) if
> if you know which space register to use in the be (in user space, %sr4
> will always work since the address space is flat).

erm, yes, you did say that, and i forgot. i will change it.

randolph
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] interesting linker behaviour :)
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On Tue, Sep 21, 2004 at 02:51:29PM -0400, John David Anglin wrote:
> > On Tue, Sep 21, 2004 at 10:22:45AM -0700, Randolph Chung wrote:
> > > but 10100158 is lstrncpy_from_user, not $lsfu_exit:
> > > 10100158 <lstrncpy_from_user>
> > > 10100190 <$lsfu_exit>
> > > 
> > > i wonder if the sections are somehow confusing things.... this is with
> > > fairly recent gcc/binutils toolchains, for 32-bit.
> > 
> > Multiple entry points to a function may not work if an import stub is
> > required? The import stubs are thrown into a hash, and it probably
> > thinks it's okay for you to use the same import stub. You on the other
> > want a second entry point.
> > 
> > I recommend you give the exit it's own symbol, .export and .import the
> > linker thinks it's two different functions?
> 
> Good catch!  I've hit this problem before but under HP-UX.  GAS doesn't
> support the alternate entry point fixup needed to support multiple
> entry points to a function.  I don't think anyone has tried to support
> this with the ELF tools.  There could be some nasty interactions with
> the HP unwind data when you start adding multiple entry points to a
> function.

I think you said we had similar problems with non-local goto's?

Either we had a conversation about multiple entry points, or I read it
in one of the HP documents :)

c.

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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] interesting linker behaviour :)
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> Good catch!  I've hit this problem before but under HP-UX.  GAS doesn't
> support the alternate entry point fixup needed to support multiple
> entry points to a function.  I don't think anyone has tried to support
> this with the ELF tools.  There could be some nasty interactions with
> the HP unwind data when you start adding multiple entry points to a
> function.

yeah, it will break unwinding :(

> I haven't looked at this in detail but possibly you can change the
> fixup table to contain pc-relative offsets.  I looked at this
> when I reworked the casesi pattern in GCC a few months ago.  This
> makes the table smaller and in many cases the number of instructions
> is less than that with branches in the table (particularly for the
> PIC case).  

well, this is what we used to do, but we don't do this now because it
requires us to be able to do a pc-relative calculation between code in
two different sections (text and fixup), and GAS doesn't allow that
either.

for now i'm using the solution we are using for 64-bit code, which is to
use a manually created long-branch stub (ldil/ldo/bv). since this is 
anyway in a slow-path the performance hit is probably negligible.

randolph
-- 
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On Tue, Sep 21, 2004 at 06:04:59PM -0400, Carlos O'Donell wrote:
> I think you said we had similar problems with non-local goto's?
> 
> Either we had a conversation about multiple entry points, or I read it
> in one of the HP documents :)

Randolph,

See! If we had a wiki it would be under 'john david anglin says' :)

c.

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Subject: Re: [parisc-linux] interesting linker behaviour :)
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> > Good catch!  I've hit this problem before but under HP-UX.  GAS doesn't
> > support the alternate entry point fixup needed to support multiple
> > entry points to a function.  I don't think anyone has tried to support
> > this with the ELF tools.  There could be some nasty interactions with
> > the HP unwind data when you start adding multiple entry points to a
> > function.
> 
> I think you said we had similar problems with non-local goto's?

Right, that's where it came up.  As of 6/11/04, we have a new nonlocal_goto
expander.  I'm a little foggy on this issue but I think prior to the
tree-ssa merge the default nonlocal_goto expander was ok.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] Hanging processes in T state
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pa,

Using 2.6.9-rc2 kernels, i see a lot of hanging processes when running
the gdb testsuite. I checked in one fix to arch/parisc/kernel/ptrace.c
that fixes most of them, but i still see some:

e.g.:
 6273 ?        T      0:00 /home/tausq/gdb/build-cvs/gdb/testsuite/gdb.mi/mi-pth
 6272 ?        T      0:00 /home/tausq/gdb/build-cvs/gdb/testsuite/gdb.mi/mi-pth
 6271 ?        T      0:00 /home/tausq/gdb/build-cvs/gdb/testsuite/gdb.mi/mi-pth

all the ones that are hanging seem to be using pthreads. anyone else see
this? anyway want to do some debugging? :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] hppa glibc 2.3.3 experimental debs,
	chroot testers wanted.
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pa,

These packages are an experimental compilation of glibc 2.3.3 upstream
cvs, along with the latest hppa patches.

Differences between this and the debian glibc are many, debian probably
has some generic bug fixes that this does not.

The main reason to test this glibc is:

- Addition of "memory" constraint for inline asm() syscall wrappers.

- Supported framemarker entries for syscall wrappers, allowing gdb
  to make sense of the wrapper.

They add a bunch of other things not present in the debian glibc. Too
many to mention (COPY reloc fixes, LD_PROFILE fix, generic function
descriptors etc).

In summary I *do not* recommend using these .deb's on anything but a
chroot environment. They *are* tested in my chroot environment and they
do not cause any known problems. There might be one regression in 
tst-waitid, cause unknown.

http://www.parisc-linux.org/~carlos/glibc-work/glibc-2.3.3-debs-2004-09-23/

Binary build only. Haven't cleaned up the debian bits to make it
sourcefull.

Cheers,
Carlos.

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Subject: [parisc-linux] waitid doesn't work on hppa?
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On Thu, Sep 23, 2004 at 05:06:46PM -0700, Randolph Chung wrote:
> pa,
> 
> Using 2.6.9-rc2 kernels, i see a lot of hanging processes when running
> the gdb testsuite. I checked in one fix to arch/parisc/kernel/ptrace.c
> that fixes most of them, but i still see some:
> 
> e.g.:
>  6273 ?        T      0:00 /home/tausq/gdb/build-cvs/gdb/testsuite/gdb.mi/mi-pth
>  6272 ?        T      0:00 /home/tausq/gdb/build-cvs/gdb/testsuite/gdb.mi/mi-pth
>  6271 ?        T      0:00 /home/tausq/gdb/build-cvs/gdb/testsuite/gdb.mi/mi-pth
> 
> all the ones that are hanging seem to be using pthreads. anyone else see
> this? anyway want to do some debugging? :)

Bugs in our 64-bit compat for rt_sigqueueinfo acceptance, or siginfo
delivery?

I see waitid regressions in the glibc testsuite. I'm not sure if this
had anything to do with these hanging processes. I haven't looked too
deeply.

I constructed my usual 'out-of-build' test framework and I'm seeing:

Kernel 2.6.9-rc2-pa7, glibc 2.3.3
carlos@firin:~/fsrc/glibc-work/tests/tst-waitid$ ./ntst-waitid 
./ntst-waitid: missing SIGCHLD on stopped
./ntst-waitid: waitid WNOHANG on stopped: Not supported
carlos@firin:~/fsrc/glibc-work/tests/tst-waitid$ echo $?
1

Kernel 2.6.9-rc2-pa7, glibc 2.3.2.ds1-13
carlos@firin:~/fsrc/glibc-work/tests/tst-waitid$ ./tst-waitid 
./tst-waitid: missing SIGCHLD on stopped
./tst-waitid: waitid WSTOPPED|WNOHANG on stopped signal 0

carlos@firin:~/fsrc/glibc-work/tests/tst-waitid$ echo $?
1

Test attached if you wish to work on it? :)

Cheers,
Carlos.

---
/* Tests for waitid.
   Copyright (C) 2004 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <errno.h>
#include <error.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>
#include <signal.h>

#define TIMEOUT 15

static void
test_child (void)
{
  /* Wait a second to be sure the parent set his variables before we
     produce a SIGCHLD.  */
  sleep (5);

  /* First thing, we stop ourselves.  */
  raise (SIGSTOP);

  /* Hey, we got continued!  */
  while (1)
    pause ();
}

#ifndef WEXITED
# define WEXITED	0
# define WCONTINUED	0
# define WSTOPPED	WUNTRACED
#endif

static sig_atomic_t expecting_sigchld, spurious_sigchld;
#ifdef SA_SIGINFO
static siginfo_t sigchld_info;

static void
sigchld (int signo, siginfo_t *info, void *ctx)
{
  if (signo != SIGCHLD)
    {
      error (0, 0, "SIGCHLD handler got signal %d instead!", signo);
      _exit (EXIT_FAILURE);
    }

  if (! expecting_sigchld)
    {
      spurious_sigchld = 1;
      error (0, 0,
	     "spurious SIGCHLD: signo %d code %d status %d pid %d\n",
	     info->si_signo, info->si_code, info->si_status, info->si_pid);
    }
  else
    {
      sigchld_info = *info;
      expecting_sigchld = 0;
    }
}

static void
check_sigchld (const char *phase, int *ok, int code, int status, pid_t pid)
{
  if (expecting_sigchld)
    {
      error (0, 0, "missing SIGCHLD on %s", phase);
      *ok = EXIT_FAILURE;
      expecting_sigchld = 0;
      return;
    }

  if (sigchld_info.si_signo != SIGCHLD)
    {
      error (0, 0, "SIGCHLD for %s signal %d", phase, sigchld_info.si_signo);
      *ok = EXIT_FAILURE;
    }
  if (sigchld_info.si_code != code)
    {
      error (0, 0, "SIGCHLD for %s code %d", phase, sigchld_info.si_code);
      *ok = EXIT_FAILURE;
    }
  if (sigchld_info.si_status != status)
    {
      error (0, 0, "SIGCHLD for %s status %d", phase, sigchld_info.si_status);
      *ok = EXIT_FAILURE;
    }
  if (sigchld_info.si_pid != pid)
    {
      error (0, 0, "SIGCHLD for %s pid %d", phase, sigchld_info.si_pid);
      *ok = EXIT_FAILURE;
    }
}
# define CHECK_SIGCHLD(phase, code_check, status_check) \
  check_sigchld ((phase), &status, (code_check), (status_check), pid)
#else
# define CHECK_SIGCHLD(phase, code, status) ((void) 0)
#endif

int
main (int argc, char *argv[])
{
#ifdef SA_SIGINFO
  struct sigaction sa;
  sa.sa_flags = SA_SIGINFO|SA_RESTART;
  sa.sa_sigaction = &sigchld;
  if (sigemptyset (&sa.sa_mask) < 0 || sigaction (SIGCHLD, &sa, NULL) < 0)
    {
      error (0, errno, "setting SIGCHLD handler");
      return EXIT_FAILURE;
    }
#endif

  expecting_sigchld = 1;

  pid_t pid = fork ();
  if (pid < 0)
    {
      error (0, errno, "fork");
      return EXIT_FAILURE;
    }
  else if (pid == 0)
    {
      test_child ();
      _exit (127);
    }

  int status = EXIT_SUCCESS;
#define RETURN(ok) \
    do { if (status == EXIT_SUCCESS) status = (ok); goto out; } while (0)

  /* Give the child a chance to stop.  */
  sleep (3);

  CHECK_SIGCHLD ("stopped", CLD_STOPPED, SIGSTOP);

  /* Now try a wait that should not succeed.  */
  siginfo_t info;
  info.si_signo = 0;		/* A successful call sets it to SIGCHLD.  */
  int fail = waitid (P_PID, pid, &info, WEXITED|WCONTINUED|WNOHANG);
  switch (fail)
    {
    default:
      error (0, 0, "waitid returned bogus value %d\n", fail);
      RETURN (EXIT_FAILURE);
    case -1:
      error (0, errno, "waitid WNOHANG on stopped");
      RETURN (errno == ENOTSUP ? EXIT_SUCCESS : EXIT_FAILURE);
    case 0:
      if (info.si_signo == 0)
	break;
      if (info.si_signo == SIGCHLD)
	error (0, 0, "waitid WNOHANG on stopped status %d\n", info.si_status);
      else
	error (0, 0, "waitid WNOHANG on stopped signal %d\n", info.si_signo);
      RETURN (EXIT_FAILURE);
    }

  /* Next the wait that should succeed right away.  */
  info.si_signo = 0;		/* A successful call sets it to SIGCHLD.  */
  info.si_pid = -1;
  info.si_status = -1;
  fail = waitid (P_PID, pid, &info, WSTOPPED|WNOHANG);
  switch (fail)
    {
    default:
      error (0, 0, "waitid WSTOPPED|WNOHANG returned bogus value %d\n", fail);
      RETURN (EXIT_FAILURE);
    case -1:
      error (0, errno, "waitid WSTOPPED|WNOHANG on stopped");
      RETURN (errno == ENOTSUP ? EXIT_SUCCESS : EXIT_FAILURE);
    case 0:
      if (info.si_signo != SIGCHLD)
	{
	  error (0, 0, "waitid WSTOPPED|WNOHANG on stopped signal %d\n",
		 info.si_signo);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_code != CLD_STOPPED)
	{
	  error (0, 0, "waitid WSTOPPED|WNOHANG on stopped code %d\n",
		 info.si_code);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_status != SIGSTOP)
	{
	  error (0, 0, "waitid WSTOPPED|WNOHANG on stopped status %d\n",
		 info.si_status);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_pid != pid)
	{
	  error (0, 0, "waitid WSTOPPED|WNOHANG on stopped pid %d != %d\n",
		 info.si_pid, pid);
	  RETURN (EXIT_FAILURE);
	}
    }

  expecting_sigchld = WCONTINUED != 0;

  if (kill (pid, SIGCONT) != 0)
    {
      error (0, errno, "kill (%d, SIGCONT)", pid);
      RETURN (EXIT_FAILURE);
    }

  /* Wait for the child to have continued.  */
  sleep (2);

#if WCONTINUED != 0
  if (expecting_sigchld)
    {
      error (0, 0, "no SIGCHLD seen for SIGCONT (optional)");
      expecting_sigchld = 0;
    }
  else
    CHECK_SIGCHLD ("continued", CLD_CONTINUED, SIGCONT);

  info.si_signo = 0;		/* A successful call sets it to SIGCHLD.  */
  info.si_pid = -1;
  info.si_status = -1;
  fail = waitid (P_PID, pid, &info, WCONTINUED|WNOWAIT);
  switch (fail)
    {
    default:
      error (0, 0,
	     "waitid WCONTINUED|WNOWAIT returned bogus value %d\n", fail);
      RETURN (EXIT_FAILURE);
    case -1:
      error (0, errno, "waitid WCONTINUED|WNOWAIT on continued");
      RETURN (errno == ENOTSUP ? EXIT_SUCCESS : EXIT_FAILURE);
    case 0:
      if (info.si_signo != SIGCHLD)
	{
	  error (0, 0, "waitid WCONTINUED|WNOWAIT on continued signal %d\n",
		 info.si_signo);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_code != CLD_CONTINUED)
	{
	  error (0, 0, "waitid WCONTINUED|WNOWAIT on continued code %d\n",
		 info.si_code);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_status != SIGCONT)
	{
	  error (0, 0, "waitid WCONTINUED|WNOWAIT on continued status %d\n",
		 info.si_status);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_pid != pid)
	{
	  error (0, 0, "waitid WCONTINUED|WNOWAIT on continued pid %d != %d\n",
		 info.si_pid, pid);
	  RETURN (EXIT_FAILURE);
	}
    }

  /* That should leave the CLD_CONTINUED state waiting to be seen again.  */
  info.si_signo = 0;		/* A successful call sets it to SIGCHLD.  */
  info.si_pid = -1;
  info.si_status = -1;
  fail = waitid (P_PID, pid, &info, WCONTINUED);
  switch (fail)
    {
    default:
      error (0, 0, "waitid WCONTINUED returned bogus value %d\n", fail);
      RETURN (EXIT_FAILURE);
    case -1:
      error (0, errno, "waitid WCONTINUED on continued");
      RETURN (errno == ENOTSUP ? EXIT_SUCCESS : EXIT_FAILURE);
    case 0:
      if (info.si_signo != SIGCHLD)
	{
	  error (0, 0, "waitid WCONTINUED on continued signal %d\n",
		 info.si_signo);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_code != CLD_CONTINUED)
	{
	  error (0, 0, "waitid WCONTINUED on continued code %d\n",
		 info.si_code);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_status != SIGCONT)
	{
	  error (0, 0, "waitid WCONTINUED on continued status %d\n",
		 info.si_status);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_pid != pid)
	{
	  error (0, 0, "waitid WCONTINUED on continued pid %d != %d\n",
		 info.si_pid, pid);
	  RETURN (EXIT_FAILURE);
	}
    }

  /* Now try a wait that should not succeed.  */
  info.si_signo = 0;		/* A successful call sets it to SIGCHLD.  */
  fail = waitid (P_PID, pid, &info, WCONTINUED|WNOHANG);
  switch (fail)
    {
    default:
      error (0, 0, "waitid returned bogus value %d\n", fail);
      RETURN (EXIT_FAILURE);
    case -1:
      error (0, errno, "waitid WCONTINUED|WNOHANG on waited continued");
      RETURN (errno == ENOTSUP ? EXIT_SUCCESS : EXIT_FAILURE);
    case 0:
      if (info.si_signo == 0)
	break;
      if (info.si_signo == SIGCHLD)
	error (0, 0,
	       "waitid WCONTINUED|WNOHANG on waited continued status %d\n",
	       info.si_status);
      else
	error (0, 0,
	       "waitid WCONTINUED|WNOHANG on waited continued signal %d\n",
	       info.si_signo);
      RETURN (EXIT_FAILURE);
    }
#endif

  expecting_sigchld = 1;

  /* Die, child, die!  */
  if (kill (pid, SIGKILL) != 0)
    {
      error (0, errno, "kill (%d, SIGKILL)", pid);
      RETURN (EXIT_FAILURE);
    }

#ifdef WNOWAIT
  info.si_signo = 0;		/* A successful call sets it to SIGCHLD.  */
  info.si_pid = -1;
  info.si_status = -1;
  fail = waitid (P_PID, pid, &info, WEXITED|WNOWAIT);
  switch (fail)
    {
    default:
      error (0, 0, "waitid WNOWAIT returned bogus value %d\n", fail);
      RETURN (EXIT_FAILURE);
    case -1:
      error (0, errno, "waitid WNOWAIT on killed");
      RETURN (errno == ENOTSUP ? EXIT_SUCCESS : EXIT_FAILURE);
    case 0:
      if (info.si_signo != SIGCHLD)
	{
	  error (0, 0, "waitid WNOWAIT on killed signal %d\n",
		 info.si_signo);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_code != CLD_KILLED)
	{
	  error (0, 0, "waitid WNOWAIT on killed code %d\n",
		 info.si_code);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_status != SIGKILL)
	{
	  error (0, 0, "waitid WNOWAIT on killed status %d\n",
		 info.si_status);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_pid != pid)
	{
	  error (0, 0, "waitid WNOWAIT on killed pid %d != %d\n",
		 info.si_pid, pid);
	  RETURN (EXIT_FAILURE);
	}
    }
#else
  /* Allow enough time to be sure the child died; we didn't synchronize.  */
  sleep (2);
#endif

  CHECK_SIGCHLD ("killed", CLD_KILLED, SIGKILL);

  info.si_signo = 0;		/* A successful call sets it to SIGCHLD.  */
  info.si_pid = -1;
  info.si_status = -1;
  fail = waitid (P_PID, pid, &info, WEXITED|WNOHANG);
  switch (fail)
    {
    default:
      error (0, 0, "waitid WNOHANG returned bogus value %d\n", fail);
      RETURN (EXIT_FAILURE);
    case -1:
      error (0, errno, "waitid WNOHANG on killed");
      RETURN (EXIT_FAILURE);
    case 0:
      if (info.si_signo != SIGCHLD)
	{
	  error (0, 0, "waitid WNOHANG on killed signal %d\n",
		 info.si_signo);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_code != CLD_KILLED)
	{
	  error (0, 0, "waitid WNOHANG on killed code %d\n",
		 info.si_code);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_status != SIGKILL)
	{
	  error (0, 0, "waitid WNOHANG on killed status %d\n",
		 info.si_status);
	  RETURN (EXIT_FAILURE);
	}
      if (info.si_pid != pid)
	{
	  error (0, 0, "waitid WNOHANG on killed pid %d != %d\n",
		 info.si_pid, pid);
	  RETURN (EXIT_FAILURE);
	}
    }

  fail = waitid (P_PID, pid, &info, WEXITED);
  if (fail == -1)
    {
      if (errno != ECHILD)
	{
	  error (0, errno, "waitid WEXITED on killed");
	  RETURN (EXIT_FAILURE);
	}
    }
  else
    {
      error (0, 0, "waitid WEXITED returned bogus value %d\n", fail);
      RETURN (EXIT_FAILURE);
    }

#undef RETURN
 out:
  if (spurious_sigchld)
    status = EXIT_FAILURE;
  signal (SIGCHLD, SIG_IGN);
  kill (pid, SIGKILL);		/* Make sure it's dead if we bailed early.  */
  return status;
}


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Subject: Re: [parisc-linux] waitid doesn't work on hppa?
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Xref: news.gmane.org gmane.linux.ports.parisc:22035

> I see waitid regressions in the glibc testsuite. I'm not sure if this
> had anything to do with these hanging processes. I haven't looked too
> deeply.

This is probably the cause of the expect hangs.  For some reason
tcl8.3 works better than 8.4.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] waitid doesn't work on hppa?
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On Thursday 23 September 2004 11:55 pm, Carlos O'Donell wrote:
> I see waitid regressions in the glibc testsuite. I'm not sure if this
> had anything to do with these hanging processes. I haven't looked too
> deeply.

i know we tried a 20040916 glibc snapshot at Gentoo but had to abandon it 
because of so many problems ...

one of them is what you describe, processes running just fine but hanging just 
before exit ... but we saw that on amd64 ...
in other words, these waitpid problems are probably not arch related :)

here's what i noticed in an amd64 chroot:
- 20040808 glibc snapshot works great
- install 20040916 glibc snapshot, things work fine
- rebuild bash against 20040916 ... suddenly all child processes of the new 
bash shells hang after they've completed normal operations ... note that bash 
is the *only* app that's been recompiled against the new glibc
- install 20040808 glibc, bug persists; rebuild bash, things works fine 
again ...
-mike
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Subject: Re: [parisc-linux] waitid doesn't work on hppa?
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On Thu, Sep 23, 2004 at 11:55:53PM -0400, Carlos O'Donell wrote:
> I see waitid regressions in the glibc testsuite. I'm not sure if this
> had anything to do with these hanging processes. I haven't looked too
> deeply.

Possibly it's because we haven't hooked up sys_waitid yet?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: [parisc-linux] waitid is badly emulated with waitpid (cannot reap
	child and a couple of other things)
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On Fri, Sep 24, 2004 at 02:06:02PM +0100, Matthew Wilcox wrote:
> On Thu, Sep 23, 2004 at 11:55:53PM -0400, Carlos O'Donell wrote:
> > I see waitid regressions in the glibc testsuite. I'm not sure if this
> > had anything to do with these hanging processes. I haven't looked too
> > deeply.
> 
> Possibly it's because we haven't hooked up sys_waitid yet?

It's supposed to fall back and emulate sys_waitid with a couple other
syscalls. Who knows if this emulation is working correctly.

The emualted waitid() cannot handle all the proper modes apparently,
which means things like reaping children is not possible since waitpid()
is used.

I think we definately want to have sys_waitid() connected soon.

c.
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Subject: [parisc-linux] hppa glibc 2.3.3 experimental debs - patches posted
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On Thu, Sep 23, 2004 at 11:35:19PM -0400, Carlos O'Donell wrote:
> http://www.parisc-linux.org/~carlos/glibc-work/glibc-2.3.3-debs-2004-09-23/
> 
> Binary build only. Haven't cleaned up the debian bits to make it
> sourcefull.

Patch against cvs head:

http://www.parisc-linux.org/~carlos/glibc-work/glibc-hppa-patches-2004-09-22.tar.gz

Cheers,
Carlos

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Hi all,

I tried the "official" 2.6.8 Debian-image and 2.6.8.1-pa11-image but none 
worked.
After booting, the message "if this is the last..." about graphic and 
serial-console is printed and after that (I suppose when the kernel tries to 
initialize the framebuffer) the screen turns blue, no HDD-activity anymore, 
the system hangs.
As far as I can see no other messages.
With 2.4.27-pa4 everything is fine.

machine: 735/125
graphics: CRX24
palo-commandline: 2/vmlinux root=/dev/sda6 HOME=/
32-bit kernel

Any clues?

Johannes

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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] waitid doesn't work on hppa?
Date: Fri, 24 Sep 2004 09:32:35 -0700
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In reference to a message from John David Anglin, dated Sep 24:
> > I see waitid regressions in the glibc testsuite. I'm not sure if this
> > had anything to do with these hanging processes. I haven't looked too
> > deeply.
> 
> This is probably the cause of the expect hangs.  For some reason
> tcl8.3 works better than 8.4.

i don't think expect/tcl uses waitid (not waitpid....)

randolph
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] compat fixes and a signal si_code bug fix.
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Xref: news.gmane.org gmane.linux.ports.parisc:22042


pa,

With the addition of all the extra syscalls we didn't have before
(thanks Matthew), I've been experimenting with an update of
kernel-header, and a glibc rebuild to use the syscalls. A couple of
issues have come forward but they can be fixed, and infact some things
are fixed in the following patch.

---

Fixed a big bug in the compat signal routines, we were copying the
kernel SI_CODE bits down into userspace and this would mean any
program reading si_code's would be confused by the weird code. Given
that siginfo has always been broken, we just continue to make it better :)

---

We need compat for a number of functions in 64-bit compiles:

The following already had compat but are now connected:

	compat_sys_timer_settime
	compat_sys_timer_gettime
	compat_sys_clock_gettime
	compat_sys_clock_getres
	compat_sys_clock_nanosleep

(Truthfully the glibc testsuite shows them failing right now
 after I connected them. Need to fix this now).

The following don't have compat and were just added by this patch:

	compat_sys_timer_create
	compat_sys_waitid

The following function is required for the waitid syscall since it reads
a sigevent from userspace and that requries type conversion.

	compat_copy_sigevent_from_user

---
 include/asm-generic/siginfo.h  |    6 +
 include/linux/compat_siginfo.h |    8 +
 kernel/compat.c                |   49 +++++++++--
 kernel/compat_signal.c         |   42 ++++++++-
 4 files changed, 95 insertions(+), 10 deletions(-)

Index: include/asm-generic/siginfo.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-generic/siginfo.h,v
retrieving revision 1.6
diff -u -p -r1.6 siginfo.h
--- include/asm-generic/siginfo.h	13 Sep 2004 15:24:02 -0000	1.6
+++ include/asm-generic/siginfo.h	27 Sep 2004 03:57:47 -0000
@@ -242,9 +242,13 @@ typedef struct siginfo {
 #define SIGEV_THREAD	2	/* deliver via thread creation */
 #define SIGEV_THREAD_ID 4	/* deliver to thread */
 
+#ifndef __ARCH_SIGEV_PREAMBLE_SIZE
+#define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(int) * 2 + sizeof(sigval_t))
+#endif
+
 #define SIGEV_MAX_SIZE	64
 #ifndef SIGEV_PAD_SIZE
-#define SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE/sizeof(int)) - 3)
+#define SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE)/sizeof(int))
 #endif
 
 #ifndef HAVE_ARCH_SIGEVENT_T
Index: include/linux/compat_siginfo.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/linux/compat_siginfo.h,v
retrieving revision 1.5
diff -u -p -r1.5 compat_siginfo.h
--- include/linux/compat_siginfo.h	12 May 2004 23:57:13 -0000	1.5
+++ include/linux/compat_siginfo.h	27 Sep 2004 03:57:47 -0000
@@ -130,9 +130,13 @@ typedef struct compat_siginfo {
  * However, everything is written out here so as to not get lost.
  */
 
+#ifndef __ARCH_SIGEV_COMPAT_PREAMBLE_SIZE
+#define __ARCH_SIGEV_COMPAT_PREAMBLE_SIZE (sizeof(compat_int_t) * 2 + sizeof(compat_sigval_t))
+#endif
+
 #define SIGEV_COMPAT_MAX_SIZE	64
 #ifndef SIGEV_COMPAT_PAD_SIZE
-#define SIGEV_COMPAT_PAD_SIZE	((SIGEV_COMPAT_MAX_SIZE/sizeof(int)) - 3)
+#define SIGEV_COMPAT_PAD_SIZE	((SIGEV_COMPAT_MAX_SIZE - __ARCH_SIGEV_COMPAT_PREAMBLE_SIZE)/sizeof(compat_int_t))
 #endif
 
 #ifndef HAVE_ARCH_COMPAT_SIGEVENT_T
@@ -172,6 +176,8 @@ static inline void compat_copy_siginfo(s
 
 extern int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, struct siginfo *from);
 extern int compat_copy_siginfo_from_user(struct siginfo *to, compat_siginfo_t __user *from);
+
+extern int compat_copy_sigevent_from_user(struct sigevent *to, compat_sigevent_t __user *from);
 
 #endif /* CONFIG_COMPAT */
 #endif /* _ASM_GENERIC_COMPAT_SIGINFO_H */
Index: kernel/compat.c
===================================================================
RCS file: /var/cvs/linux-2.6/kernel/compat.c,v
retrieving revision 1.12
diff -u -p -r1.12 compat.c
--- kernel/compat.c	13 Sep 2004 15:24:20 -0000	1.12
+++ kernel/compat.c	27 Sep 2004 03:57:47 -0000
@@ -13,6 +13,7 @@
 
 #include <linux/linkage.h>
 #include <linux/compat.h>
+#include <linux/compat_siginfo.h>
 #include <linux/errno.h>
 #include <linux/time.h>
 #include <linux/signal.h>
@@ -518,7 +519,7 @@ static int put_compat_itimerspec(struct 
 	return 0;
 } 
 
-long compat_timer_settime(timer_t timer_id, int flags, 
+long compat_sys_timer_settime(timer_t timer_id, int flags, 
 			  struct compat_itimerspec __user *new, 
 			  struct compat_itimerspec __user *old)
 { 
@@ -541,7 +542,7 @@ long compat_timer_settime(timer_t timer_
 	return err;
 } 
 
-long compat_timer_gettime(timer_t timer_id,
+long compat_sys_timer_gettime(timer_t timer_id,
 		struct compat_itimerspec __user *setting)
 { 
 	long err;
@@ -558,7 +559,7 @@ long compat_timer_gettime(timer_t timer_
 	return err;
 } 
 
-long compat_clock_settime(clockid_t which_clock,
+long compat_sys_clock_settime(clockid_t which_clock,
 		struct compat_timespec __user *tp)
 {
 	long err;
@@ -575,7 +576,7 @@ long compat_clock_settime(clockid_t whic
 	return err;
 } 
 
-long compat_clock_gettime(clockid_t which_clock,
+long compat_sys_clock_gettime(clockid_t which_clock,
 		struct compat_timespec __user *tp)
 {
 	long err;
@@ -592,7 +593,7 @@ long compat_clock_gettime(clockid_t whic
 	return err;
 } 
 
-long compat_clock_getres(clockid_t which_clock,
+long compat_sys_clock_getres(clockid_t which_clock,
 		struct compat_timespec __user *tp)
 {
 	long err;
@@ -609,7 +610,7 @@ long compat_clock_getres(clockid_t which
 	return err;
 } 
 
-long compat_clock_nanosleep(clockid_t which_clock, int flags,
+long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
 			    struct compat_timespec __user *rqtp,
 			    struct compat_timespec __user *rmtp)
 {
@@ -634,6 +635,20 @@ long compat_clock_nanosleep(clockid_t wh
 
 /* timer_create is architecture specific because it needs sigevent conversion */
 
+long compat_sys_timer_create(clockid_t which_clock,
+			     compat_sigevent_t __user *timer_event_spec,
+			     compat_timer_t __user * created_timer_id)
+{
+	sigevent_t kevent;
+
+	if (timer_event_spec != NULL)
+		if (compat_copy_sigevent_from_user(&kevent, timer_event_spec) != 0)
+			return -EFAULT;
+
+	return sys_timer_create(which_clock, &kevent, created_timer_id);
+}
+
+
 long compat_get_bitmap(unsigned long *mask, compat_ulong_t __user *umask,
 		       unsigned long bitmap_size)
 {
@@ -714,3 +729,25 @@ long compat_put_bitmap(compat_ulong_t __
 
 	return 0;
 }
+
+asmlinkage int compat_sys_waitid(int which, pid_t pid,
+				 compat_siginfo_t __user *infop, int options)
+{
+  	long ret;
+	siginfo_t ksiginfo;
+	
+	memset(&ksiginfo, 0, sizeof(ksiginfo));
+	ret = sys_waitid(which, pid, &ksiginfo, options);
+
+	if (ret < 0 || ksiginfo.si_signo == 0)
+	  return ret;
+
+	ksiginfo.si_code |= __SI_CHLD;
+	
+	if (compat_copy_siginfo_to_user(infop, &ksiginfo) != 0)
+	  return -EFAULT;
+
+	return 0;
+}
+
+
Index: kernel/compat_signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/kernel/compat_signal.c,v
retrieving revision 1.4
diff -u -p -r1.4 compat_signal.c
--- kernel/compat_signal.c	30 Apr 2004 20:07:02 -0000	1.4
+++ kernel/compat_signal.c	27 Sep 2004 03:57:47 -0000
@@ -29,7 +29,6 @@
 #include <asm/siginfo.h>
 
 #ifndef HAVE_ARCH_COMPAT_COPY_SIGINFO_TO_USER
-
 int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, siginfo_t *from)
 {
 	int err;
@@ -52,7 +51,8 @@ int compat_copy_siginfo_to_user(compat_s
         /* Always copy si_signo, si_errno, and si_code */
 	compat_from.si_signo = (compat_int_t)(from->si_signo);
 	compat_from.si_errno = (compat_int_t)(from->si_errno);
-	compat_from.si_code = (compat_int_t)(from->si_code);
+	/* si_code is only a (short) value, remove kernel bits. */
+	compat_from.si_code = (compat_int_t)(from->si_code & 0xffffUL);
         
 	err = __put_user(compat_from.si_signo, &to->si_signo);
 	err |= __put_user(compat_from.si_errno, &to->si_errno);
@@ -129,7 +129,9 @@ int compat_copy_siginfo_to_user(compat_s
 	}
 	return err;
 }
+#endif
 
+#ifndef HAVE_ARCH_COPY_SIGINFO_FROM_USER
 int compat_copy_siginfo_from_user(siginfo_t *to, compat_siginfo_t __user *from)
 {
 	int err;
@@ -202,5 +204,41 @@ int compat_copy_siginfo_from_user(siginf
 	}
 	return err;
 }
+#endif
 
+#ifndef HAVE_ARCH_COPY_SIGEVENT_FROM_USER
+int compat_copy_sigevent_from_user(sigevent_t *to, compat_sigevent_t __user *from)
+{
+	int err;
+	u64 scratch;
+	
+	/* copy sigval_t sigev_value 
+	 	int_t sival_int		(same)
+	 	uptr_t sival_ptr	(32 vs 64)*/
+	err = __get_user(to->sigev_value.sival_int, 
+	    		 &from->sigev_value.sival_int);
+	err |= __get_user(scratch, &from->sigev_value.sival_int);
+	to->sigev_value.sival_ptr = (u64 *)scratch;
+	
+	/* copy int_t sigev_signo 	(same)*/
+	err |= __get_user(to->sigev_signo, &from->sigev_signo);
+	
+	/* copy int_t sigev_notify	(same)*/
+	err |= __get_user(to->sigev_notify, &from->sigev_notify);
+
+	/* never copy _sigev_un padding */
+
+	/* copy int_t _tid 		(same),
+	   good_sigevent() uses this value of */
+	err |= __get_user(to->sigev_notify_thread_id, &from->sigev_notify_thread_id);
+	
+	/* XXX: Do not copy these, they aren't used by
+	   anyone. We would need to distinguish the uses of the union.
+	   copy _sigev_thread
+	  	uptr_t _function	(32 vs 64)
+	  	uptr_t _attribute	(32 vs 64)*/
+	
+	return err;
+}
 #endif
+
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] BUG 2.6.9-rc2-pa9 data page fault in free_block()
Date: Sun, 26 Sep 2004 23:33:55 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:22043

As promised, I built/booted -pa9 for a500 and it panic'd at
boot time with

Kernel Fault: Code=15 regs=000000001479c560 (Addr=00000001ffe3b618)
...
 IAOQ[0]: free_block+0xa8/0x1a0
 IAOQ[1]: free_block+0xac/0x1a0
 RP(r2): drain_array_locked+0xe4/0x118

Full console output appended.

Oh...I just noticed that's right after/while fusion driver initialized.
I couldn't get that work reliably on c3000 with 2.6.8.1 either.
So that's my first suspect. :^(

thanks,
grant



Firmware Version  40.50

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      440  MHz   Active                 Functional         512 KB   1 MB
      1      440  MHz   Idle                   Functional         512 KB   1 MB

  Central Bus Speed (in MHz)  :        111  
  Available Memory            :    5242880  KB
  Good Memory Required        :      11468  KB

   Primary boot path:    0/0/1/1.15          
   Alternate boot path:  0/0/2/1.15          
   Console path:         0/0/4/0.0           
   Keyboard path:        0/0/4/0.0           

 WARNING:  The non-destructive test bit was set, so memory was not tested 
            destructively.  Information only, no action required. 


---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > bo
Interact with IPL (Y, N, or Cancel)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.5 root@c3k Fri May 14 16:17:38 MDT 2004

Partition Start(MB) End(MB) Id Type
1               1     513   fd RAID
2             514     524   f0 Palo
3             525    2051   fd RAID
4            2052    8682   fd RAID

PALO(F0) partition contains:
    0/vmlinux64 4862163 bytes @ 0x20140000
Current command line:
3/boot/vmlinux-smp HOME=/ TERM=linux root=/dev/md2 console=ttyS0 pdcchassis=0
 0: 3/boot/vmlinux-smp
 1: HOME=/
 2: TERM=linux
 3: root=/dev/md2
 4: console=ttyS0
 5: pdcchassis=0

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? 0
3/boot/vmlinux-2.6.9-rc2-pa9
Current command line:
3/boot/vmlinux-2.6.9-rc2-pa9 HOME=/ TERM=linux root=/dev/md2 console=ttyS0 pdcchassis=0
 0: 3/boot/vmlinux-2.6.9-rc2-pa9
 1: HOME=/
 2: TERM=linux
 3: root=/dev/md2
 4: console=ttyS0
 5: pdcchassis=0

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? b

Command line for kernel: 'HOME=/ TERM=linux root=/dev/md2 console=ttyS0 pdcchassis=0 palo_kernel=3/boot/vmlinux-2.6.9-rc2-pa9'
Selected kernel: /boot/vmlinux-2.6.9-rc2-pa9 from partition 3
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 3916160 mediaptr 0x1000
Segment 1 load 004c0000 size 288672 mediaptr 0x3be000
Segment 2 load 00508000 size 237702 mediaptr 0x405000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.9-rc2-pa9 (grundler@ios) (gcc version 3.3.4 (Debian 1:3.3.4-12)) #1 Sun Sep 26 19:37:38 PDT 2004
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00005cb0 00000491 00000000 00000001 23355fdc 100000f0 00000008 000000b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x1
model 9000/800/A500-44
This Machine has more memory ranges than we support!
Some memory will not be used!
Total Memory: 3840 Mb
Built 1 zonelists
Kernel command line: HOME=/ TERM=linux root=/dev/md2 console=ttyS0 pdcchassis=0 palo_kernel=3/boot/vmlinux-2.6.9-rc2-pa9
PID hash table entries: 4096 (order: 12, 131072 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Memory: 3932160k available
Mount-cache hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Crescendo 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5cb, 0x00004 }
2. Crescendo 440 at 0xfffffffffffa2000 [162] { 0, 0x0, 0x5cb, 0x00004 }
3. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
4. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
7. Elroy PCI Bridge at 0xfffffffffed3c000 [0/6] { 13, 0x0, 0x782, 0x0000a }
8. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x09b, 0x00009 }
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of parisc-94 failed with error 1
CPU(s): 1 x PA8500 (PCX-W) at 440.000000 MHz
SBA found Astro 2.1 at 0xfffffffffed00000
lba version TR4.0 (0x5) found at 0xfffffffffed30000
lba version TR4.0 (0x5) found at 0xfffffffffed34000
lba version TR4.0 (0x5) found at 0xfffffffffed38000
lba version TR4.0 (0x5) found at 0xfffffffffed3c000
SCSI subsystem initialized
unwind_init: start = 0x1039c1a0, end = 0x103badf0, entries = 7877
Performance monitoring counters enabled for Crescendo 440
Initializing Cryptographic API
Soft power switch support not available.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 17 ports, IRQ sharing enabled
ttyS0 at MMIO 0xfffffffff8000000 (irq = 132) is a 16550A
ttyS1 at MMIO 0xfffffffff8000008 (irq = 132) is a 16550A
ttyS2 at MMIO 0xfffffffff8000010 (irq = 132) is a 16550A
ttyS3 at MMIO 0xfffffffff8005000 (irq = 133) is a 16550A
ttyS4 at MMIO 0xfffffffff8005008 (irq = 133) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Intel(R) PRO/1000 Network Driver - version 5.3.19-k2-NAPI
Copyright (c) 1999-2004 Intel Corporation.
tg3.c:v3.9 (August 30, 2004)
eth0: Tigon3 [partno(BCM95703A30U) rev 1002 PHY(5703)] (PCI:66MHz:64-bit) 10/100/1000BaseT Ethernet 00:10:18:04:15:c9
eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] Split[0] WireSpeed[1] TSOcap[1] 
sym0: <896> rev 0x7 at pci 0000:00:01.0 irq 129
sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18k
Using anticipatory io scheduler
  Vendor: HP        Model: D5989C            Rev: 1.05
  Type:   Processor                          ANSI SCSI revision: 02
scsi(0:0:5:0): Beginning Domain Validation
scsi(0:0:5:0): Ending Domain Validation
sym0:10: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
  Vendor: HP        Model: 9.10GB A 80-DC1B  Rev: DC1B
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:10:0: tagged command queuing enabled, command queue depth 16.
scsi(0:0:10:0): Beginning Domain Validation
sym0:10: asynchronous.
sym0:10: wide asynchronous.
sym0:10: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
scsi(0:0:10:0): Domain Validation skipping write tests
scsi(0:0:10:0): Ending Domain Validation
  Vendor: HP        Model: 9.10GB A 80-S1A0  Rev: S1A0
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:11:0: tagged command queuing enabled, command queue depth 16.
scsi(0:0:11:0): Beginning Domain Validation
sym0:11: wide asynchronous.
sym0:11: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 31)
scsi(0:0:11:0): Domain Validation skipping write tests
scsi(0:0:11:0): Ending Domain Validation
  Vendor: SEAGATE   Model: ST39102LC         Rev: 7C02
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:12:0: tagged command queuing enabled, command queue depth 16.
scsi(0:0:12:0): Beginning Domain Validation
sym0:12: wide asynchronous.
sym0:12: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
scsi(0:0:12:0): Domain Validation skipping write tests
scsi(0:0:12:0): Ending Domain Validation
  Vendor: SEAGATE   Model: ST39102LC         Rev: 7C03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:13:0: tagged command queuing enabled, command queue depth 16.
scsi(0:0:13:0): Beginning Domain Validation
sym0:13: wide asynchronous.
sym0:13: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
scsi(0:0:13:0): Domain Validation skipping write tests
scsi(0:0:13:0): Ending Domain Validation
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:14:0: tagged command queuing enabled, command queue depth 16.
scsi(0:0:14:0): Beginning Domain Validation
sym0:14: wide asynchronous.
sym0:14: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
scsi(0:0:14:0): Domain Validation skipping write tests
scsi(0:0:14:0): Ending Domain Validation
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:15:0: tagged command queuing enabled, command queue depth 16.
scsi(0:0:15:0): Beginning Domain Validation
sym0:15: wide asynchronous.
sym0:15: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
scsi(0:0:15:0): Domain Validation skipping write tests
scsi(0:0:15:0): Ending Domain Validation
sym1: <896> rev 0x7 at pci 0000:00:01.1 irq 130
sym1: No NVRAM, ID 7, Fast-40, SE, parity checking
sym1: SCSI BUS has been reset.
sym1: SCSI BUS mode change from SE to SE.
sym1: SCSI BUS has been reset.
scsi1 : sym-2.1.18k
  Vendor: SEAGATE   Model: ST39173LC         Rev: 5912
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym1:15:0: tagged command queuing enabled, command queue depth 16.
scsi(1:0:15:0): Beginning Domain Validation
sym1:15: wide asynchronous.
sym1:15: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
scsi(1:0:15:0): Domain Validation skipping write tests
scsi(1:0:15:0): Ending Domain Validation
sym2: <875> rev 0x14 at pci 0000:00:02.0 irq 130
sym2: No NVRAM, ID 7, Fast-20, SE, parity checking
sym2: SCSI BUS has been reset.
scsi2 : sym-2.1.18k
sym3: <875> rev 0x14 at pci 0000:00:02.1 irq 131
sym3: No NVRAM, ID 7, Fast-20, SE, parity checking
sym3: SCSI BUS has been reset.
scsi3 : sym-2.1.18k
  Vendor: SEAGATE   Model: ST39173LC         Rev: 5912
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym3:15:0: tagged command queuing enabled, command queue depth 16.
scsi(3:0:15:0): Beginning Domain Validation
sym3:15: wide asynchronous.
sym3:15: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
scsi(3:0:15:0): Domain Validation skipping write tests
scsi(3:0:15:0): Ending Domain Validation
sym4: <1010-66> rev 0x1 at pci 0000:20:00.0 irq 256
sym4: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym4: SCSI BUS has been reset.
scsi4 : sym-2.1.18k
  Vendor: HP        Model: 18.2GB C 80-H008  Rev: H008
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:0:0: tagged command queuing enabled, command queue depth 16.
scsi(4:0:0:0): Beginning Domain Validation
sym4:0: wide asynchronous.
sym4:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 30)
scsi(4:0:0:0): Ending Domain Validation
  Vendor: HP        Model: 18.2GB C 80-H008  Rev: H008
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:1:0: tagged command queuing enabled, command queue depth 16.
scsi(4:0:1:0): Beginning Domain Validation
sym4:1: wide asynchronous.
sym4:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 30)
scsi(4:0:1:0): Ending Domain Validation
  Vendor: HP 18.2G  Model: ST318452LC        Rev: HP05
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:2:0: tagged command queuing enabled, command queue depth 16.
scsi(4:0:2:0): Beginning Domain Validation
sym4:2: wide asynchronous.
sym4:2: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
scsi(4:0:2:0): Ending Domain Validation
  Vendor: HP        Model: 18.2GB C 80-8C42  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:3:0: tagged command queuing enabled, command queue depth 16.
scsi(4:0:3:0): Beginning Domain Validation
sym4:3: wide asynchronous.
sym4:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
scsi(4:0:3:0): Ending Domain Validation
  Vendor: HP        Model: D5989C            Rev: 1.03
  Type:   Processor                          ANSI SCSI revision: 02
scsi(4:0:5:0): Beginning Domain Validation
scsi(4:0:5:0): Ending Domain Validation
  Vendor: HP        Model: 18.2GB C 80-F612  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:8:0: tagged command queuing enabled, command queue depth 16.
scsi(4:0:8:0): Beginning Domain Validation
sym4:8: wide asynchronous.
sym4:8: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
scsi(4:0:8:0): Ending Domain Validation
  Vendor: HP        Model: 36.4GB C 80-F612  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:9:0: tagged command queuing enabled, command queue depth 16.
scsi(4:0:9:0): Beginning Domain Validation
sym4:9: wide asynchronous.
sym4:9: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
scsi(4:0:9:0): Ending Domain Validation
sym5: <1010-66> rev 0x1 at pci 0000:20:00.1 irq 257
sym5: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym5: SCSI BUS has been reset.
scsi5 : sym-2.1.18k
st: Version 20040403, fixed bufsize 32768, s/g segs 256
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sda: drive cache: write through
 sda: sda1
Attached scsi disk sda at scsi0, channel 0, id 10, lun 0
SCSI device sdb: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sdb: drive cache: write through
 sdb: sdb1
Attached scsi disk sdb at scsi0, channel 0, id 11, lun 0
SCSI device sdc: 17781521 512-byte hdwr sectors (9104 MB)
SCSI device sdc: drive cache: write through
 sdc: unknown partition table
Attached scsi disk sdc at scsi0, channel 0, id 12, lun 0
SCSI device sdd: 17781521 512-byte hdwr sectors (9104 MB)
SCSI device sdd: drive cache: write through
 sdd: sdd1 sdd2
Attached scsi disk sdd at scsi0, channel 0, id 13, lun 0
SCSI device sde: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sde: drive cache: write through
 sde: sde1
Attached scsi disk sde at scsi0, channel 0, id 14, lun 0
SCSI device sdf: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sdf: drive cache: write through
 sdf: sdf1
Attached scsi disk sdf at scsi0, channel 0, id 15, lun 0
SCSI device sdg: 17781521 512-byte hdwr sectors (9104 MB)
SCSI device sdg: drive cache: write back
 sdg: sdg1 sdg2 sdg3 sdg4
Attached scsi disk sdg at scsi1, channel 0, id 15, lun 0
SCSI device sdh: 17781521 512-byte hdwr sectors (9104 MB)
SCSI device sdh: drive cache: write back
 sdh: sdh1 sdh2 sdh3 sdh4
Attached scsi disk sdh at scsi3, channel 0, id 15, lun 0
SCSI device sdi: 35566480 512-byte hdwr sectors (18210 MB)
SCSI device sdi: drive cache: write through
 sdi: sdi1 sdi2 sdi3
Attached scsi disk sdi at scsi4, channel 0, id 0, lun 0
SCSI device sdj: 35566480 512-byte hdwr sectors (18210 MB)
SCSI device sdj: drive cache: write through
 sdj: sdj1 sdj2
Attached scsi disk sdj at scsi4, channel 0, id 1, lun 0
SCSI device sdk: 35566480 512-byte hdwr sectors (18210 MB)
SCSI device sdk: drive cache: write through
 sdk: unknown partition table
Attached scsi disk sdk at scsi4, channel 0, id 2, lun 0
SCSI device sdl: 35566480 512-byte hdwr sectors (18210 MB)
SCSI device sdl: drive cache: write through
 sdl: sdl1
Attached scsi disk sdl at scsi4, channel 0, id 3, lun 0
SCSI device sdm: 35566480 512-byte hdwr sectors (18210 MB)
SCSI device sdm: drive cache: write through
 sdm: unknown partition table
Attached scsi disk sdm at scsi4, channel 0, id 8, lun 0
SCSI device sdn: 71132960 512-byte hdwr sectors (36420 MB)
SCSI device sdn: drive cache: write through
 sdn: unknown partition table
Attached scsi disk sdn at scsi4, channel 0, id 9, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 5, lun 0,  type 3
Attached scsi generic sg1 at scsi0, channel 0, id 10, lun 0,  type 0
Attached scsi generic sg2 at scsi0, channel 0, id 11, lun 0,  type 0
Attached scsi generic sg3 at scsi0, channel 0, id 12, lun 0,  type 0
Attached scsi generic sg4 at scsi0, channel 0, id 13, lun 0,  type 0
Attached scsi generic sg5 at scsi0, channel 0, id 14, lun 0,  type 0
Attached scsi generic sg6 at scsi0, channel 0, id 15, lun 0,  type 0
Attached scsi generic sg7 at scsi1, channel 0, id 15, lun 0,  type 0
Attached scsi generic sg8 at scsi3, channel 0, id 15, lun 0,  type 0
Attached scsi generic sg9 at scsi4, channel 0, id 0, lun 0,  type 0
Attached scsi generic sg10 at scsi4, channel 0, id 1, lun 0,  type 0
Attached scsi generic sg11 at scsi4, channel 0, id 2, lun 0,  type 0
Attached scsi generic sg12 at scsi4, channel 0, id 3, lun 0,  type 0
Attached scsi generic sg13 at scsi4, channel 0, id 5, lun 0,  type 3
Attached scsi generic sg14 at scsi4, channel 0, id 8, lun 0,  type 0
Attached scsi generic sg15 at scsi4, channel 0, id 9, lun 0,  type 0
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
NET: Registered protocol family 2
IP: routing cache hash table of 32768 buckets, 256Kbytes
TCP: Hash tables configured (established 524288 bind 65536)
NET: Registered protocol family 1
NET: Registered protocol family 17
md: Autodetecting RAID arrays.
md: autorun ...
md: considering sdh4 ...
md:  adding sdh4 ...
md: sdh3 has different UUID to sdh4
md: sdh1 has different UUID to sdh4
md:  adding sdg4 ...
md: sdg3 has different UUID to sdh4
md: sdg1 has different UUID to sdh4
md: created md3
md: bind<sdg4>
md: bind<sdh4>
md: running: <sdh4><sdg4>
raid1: raid set md3 active with 2 out of 2 mirrors
md: considering sdh3 ...
md:  adding sdh3 ...
md: sdh1 has different UUID to sdh3
md:  adding sdg3 ...
md: sdg1 has different UUID to sdh3
md: created md2
md: bind<sdg3>
md: bind<sdh3>
md: running: <sdh3><sdg3>
raid1: raid set md2 active with 2 out of 2 mirrors
md: considering sdh1 ...
md:  adding sdh1 ...
md:  adding sdg1 ...
md: created md1
md: bind<sdg1>
md: bind<sdh1>
md: running: <sdh1><sdg1>
raid1: raid set md1 active with 2 out of 2 mirrors
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 236k freed
INIT: version 2.86 booting
mount: wrong fs type, bad option, bad superblock on tmpfs,
       or too many mounted file systems
Activating swap.
Checking root file system...
fsck 1.35 (28-Feb-2004)
/dev/md2: clean, 51730/195456 files, 366872/390896 blocks
EXT3 FS on md2, internal journal
mount: wrong fs type, bad option, bad superblock on tmpfs,
       or too many mounted file systems
System time was Mon Sep 27 05:27:50 UTC 2004.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Mon Sep 27 05:27:52 UTC 2004.
Cleaning up ifupdown...done.
Calculating module dependencies... done.
Loading modules...
    tulip
Linux Tulip driver version 1.1.13 (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
eth1: Digital DS21143 Tulip rev 65 at 0xfffffffff8006000, 00:30:6E:03:79:9F, IRQ 128.
    tg3
FATAL: Module tg3 not found.
    acenic
    ip_conntrack_ftp
ip_conntrack version 2.1 (8192 buckets, 65536 max) - 504 bytes per conntrack
All modules loaded.
Starting raid devices: 
done.
Checking all file systems...
fsck 1.35 (28-Feb-2004)
/dev/md3: clean, 331155/850304 files, 1402612/1697520 blocks
Setting kernel variables ...
... done.
Mounting local filesystems...
kjournald starting.  Commit interval 5 seconds
EXT3 FS on md3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
mount: wrong fs type, bad option, bad superblock on none,
       or too many mounted file systems
/dev/md3 on /home type ext3 (rw,errors=remount-ro)
Cleaning /tmp /var/run /var/lock.
mount: wrong fs type, bad option, bad superblock on tmpfs,
       or too many mounted file systems
Initializing: /etc/network/ifstate.
Starting hotplug subsystem:
   input   
   input    [success]
   isapnp  
   isapnp   [success]
   net     
   net      [success]
   pci     
     tulip: already loaded
Fusion MPT base driver 3.01.16
Copyright (c) 1999-2004 LSI Logic Corporation
mptbase: Initiating ioc0 bringup
ioc0: 53C1030: Capabilities={Initiator}
mptbase: Initiating ioc1 bringup
ioc1: 53C1030: Capabilities={Initiator}
Backtrace:
 [<0000000010175344>] drain_array_locked+0xe4/0x118
 [<0000000010175424>] cache_reap+0xac/0x2a8
 [<00000000101584a8>] worker_thread+0x220/0x330
 [<000000001015df70>] kthread+0x130/0x140
 [<000000001010647c>] ret_from_kernel_thread+0x24/0x38


Kernel Fault: Code=15 regs=000000001479c560 (Addr=00000001ffe3b618)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001110000100001110 Not tainted
r00-03  0000000000000000 00000000105053c0 0000000010175344 00000000ffe67000
r04-07  00000000104f7bc0 00000000ffe3b600 00000000ffe66018 00000000ffe3b610
r08-11  0000000000000000 000000001056b658 0000000000000001 0000000000200200
r12-15  0000000000100100 00000000ffe3b630 00000000000000f0 00000000000000ff
r16-19  00000000f00003dc 00000000f000028c 00000000f0002aa4 000000000068f4d1
r20-23  00000000ffe3b610 00000001ffe3b610 00000000140ad688 0000000000000002
r24-27  0000000000000001 00000000ffe66010 00000000ffe67880 00000000104f7bc0
r28-31  00000000ffe71010 000000001479c530 000000001479c560 0000000000000000
sr0-3   0000000000003800 0000000000000000 0000000000000000 00000000004ed000
sr4-7   0000000000000000 0000000000000000 0000000000000000000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101747d0 00000000101747d4
 IIR: 0eb412d0    ISR: 0000000000000000  IOR: 00000001ffe3b618
 CPU:        0   CR30: 000000001479c000 CR31: 00000000104c4000
 ORIG_R28: 00000000104807a0
 IAOQ[0]: free_block+0xa8/0x1a0
 IAOQ[1]: free_block+0xac/0x1a0
 RP(r2): drain_array_locked+0xe4/0x118
Kernel panic - not syncing: Kernel Fault
 
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Subject: [parisc-linux] I can't run 64bit kernel
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Hi all

I have problem with my HP 9000/861/D270 i want run on this box 64bit kernel
but it don't work. I try kernel from Debian CD and others from deb files. I
try compiling kernel 2.4.26 and it don't work too. So i have question. Can I
run 64 bit kernel on this machine?
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Subject: Re: [parisc-linux] No 2.6 kernel on 735/125 with CRX24?
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> Hello Johannes,
>
> Johannes Raspe wrote:
> >>Johannes Raspe wrote:
> >>>Hi all,
> >>>
> >>>I tried the "official" 2.6.8 Debian-image and 2.6.8.1-pa11-image but
> >>> none worked.
> >>>After booting, the message "if this is the last..." about graphic and
> >>>serial-console is printed and after that (I suppose when the kernel
> >>> tries to initialize the framebuffer) the screen turns blue, no
> >>> HDD-activity anymore, the system hangs.
> >>>As far as I can see no other messages.
> >>>With 2.4.27-pa4 everything is fine.
> >>>
> >>>machine: 735/125
> >>>graphics: CRX24
> >>>palo-commandline: 2/vmlinux root=/dev/sda6 HOME=/
> >>>32-bit kernel
> >>>
> >>>Any clues?
> >>
> >>I have no clue about 735 model but do you have the opportunity to check
> >>what hapened if you try to boot from serial console?
> >>
> >>hth,
> >> Joel
> >
> > Hi Joel,
> >
> > after soldering a nullmodem-cable I was able to get the serial console
> > running, unfortunately the output is not very informative, I think:
> >
> > Command line for kernel: 'root=/dev/sda6 HOME=/ console=ttyS0 TERM=vt102
> > palo_k'
> > Selected kernel: /vmlinux-2.6 from partition 2
> > ELF32 executable
> > Entry 001001b0 first 00100000 n 2
> > Segment 0 load 00100000 size 2494432 mediaptr 0x1000
> > Segment 1 load 00361000 size 1175685 mediaptr 0x262000
> > Branching to kernel entry point 0x001001b0.  If this is the last
> > message you see, you may need to switch your console.  This is
> > a common symptom -- search the FAQ and mailing list at parisc-linux.org
> >
> > After this, the screen on the HP-machine turns blue and the system hangs.
> > Tried with palinux-32-2.6.8.1-pa11
>
> too bad.
>
> May be try a more scpecific build: looking at the hw db it seems to me that
> the palinux-712-defconfig-2.6.8.1-pa11 or
> palinux-b180-defconfig-2.6.8.1-pa11 should be helpfull?
>
> If none of this give you much more info we would have to grab a piminfo and
> analyse it to see where the kernel failed :(
>
> Joel
>
> PS: may be a dmesg of a 2.4 boot would also be interesting to see if there
> are some know issue in 2.6 about some driver used by your 735 model

Hi Joel,

I tried:
palinux-712-defconfig-2.6.8.1-pa11
palinux-b180-defconfig-2.6.8.1-pa11
palinux-32-2.6.6-pa4
palinux-712-defconfig-2.6.6-pa4
palinux-b180-defconfig-2.6.6-pa4

all with the same result as before.

After that I compiled a 2.6.9-rc2-pa7 kernel without support for framebuffer 
(CONFIG_FB) which booted perfectly with serial console.
So I think we can track down the problem to the framebuffer driver in the 
kernels > 2.6 with my graphics device, which should be supported according to 
the beginning of stifb.c.

I attached both, the 2.4 and the 2.6 dmesg.

What could I try next ??

Johannes

-- 
Johannes Raspe - j.raspe@t-online.de
GnuPG-Key ID: D342E105
Fingerprint: D681 F800 FB2D 913E D14C 1F17 C3DB B1F1 D342 E105

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Linux version 2.4.27-pa4-APOLLO-20040924 (johio@APOLLO) (gcc version 3.2.3 (Debian)) #5 Sa Sep 25 15:40:46 CEST 2004
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00002060 00000481 00000000 00000000 77584fb0 ffffffff 00000004 0000000a 0000000a
vers  00000015
model 9000/735
Total Memory: 272 Mb
pagetable_init
On node 0 totalpages: 69632
zone(0): 69632 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/sda6 HOME=/ console=tty0 sti=1 sti_font=VGA8x16 TERM=linux palo_kernel=2/vmlinux
Console: colour dummy device 160x64
Calibrating delay loop... 124.51 BogoMIPS
Memory: 272480k available
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
Searching for devices...
Found devices:
1. Coral SGC Graphics (10) at 0xf8000000 [1], versions 0x4, 0x0, 0x77
2. Outfield Core BA (11) at 0xf082f000 [2], versions 0x9, 0x0, 0x70
3. Outfield Core SCSI (10) at 0xf0825000 [2/0/1], versions 0x9, 0x0, 0x71
4. Outfield Core LAN (802.3) (10) at 0xf0826000 [2/0/2], versions 0x9, 0x0, 0x72
5. Outfield Core HIL (10) at 0xf0821000 [2/0/3], versions 0x9, 0x0, 0x73
6. Outfield Core RS-232 (10) at 0xf0823000 [2/0/4], versions 0x9, 0x0, 0x75
7. Outfield Core RS-232 (10) at 0xf0822000 [2/0/5], versions 0x9, 0x0, 0x75
8. Outfield Core Centronics (10) at 0xf0824000 [2/0/6], versions 0x9, 0x0, 0x74
9. Outfield FW SCSI (10) at 0xf0830000 [2/0/7], versions 0x9, 0x0, 0x7c
10. Outfield Audio (10) at 0xf1000000 [2/0/8], versions 0x9, 0x0, 0x7f
11. Cobra EISA BA (11) at 0xfc000000 [4], versions 0x4, 0x0, 0x76
12. Snake Cheetah (735/130) (0) at 0xfffbe000 [8], versions 0x206, 0x0, 0x4
13. Memory (1) at 0xfffbf000 [9], versions 0x37, 0x0, 0x9
CPU(s): 1 x PA7100 (PCX-T) at 125.000000 MHz
Cutoff version 4 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch support not available.
Starting kswapd
Journalled Block Device driver loaded
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 88 [PCSPP]
STI GSC/PCI graphics driver version 0.9
STI byte mode ROM at f8000000, hpa at f8000000
STI id 26d148ee-40a00499, conforms to spec rev. 8.02
STI device: HPA1439A
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, id: 26d148ee, mmio: 0xf8100000
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with no serial options enabled
ttyS00 at iomem 0xf0823800 (irq = 90) is a 16550A
ttyS01 at iomem 0xf0822800 (irq = 89) is a 16550A
lp0: using parport0 (interrupt-driven).
Generic RTC Driver v1.07
Found i82596 at 0xf0826000, IRQ 87
82596.c: MAC of HP700 LAN read from EEPROM
eth0: Couldn't get consistent shared memory
eth0: 82596 at 0xf0826000, 08 00 09 0B BB 22 IRQ 87.
82596.c $Revision: 1.32 $
SCSI subsystem driver Revision: 1.00
53c700: consistent memory allocation failed
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0 
scsi0 : LASI SCSI 53c700
  Vendor: IBM       Model: DDRS-34560        Rev: S97B
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 4, lun 0
scsi0: (4:0) Enabling Tag Command Queuing
SCSI device sda: 8925000 512-byte hdwr sectors (4570 MB)
Partition check:
 /dev/scsi/host0/bus0/target4/lun0: p1 p2 p3 p4 < p5 p6 >
Lasi Harmony Audio driver V0.9a, h/w id 20, rev. 0 at 0xf1000000, IRQ 82
mice: PS/2 mouse device common for all mice
HP SDC: HP SDC at 0xf0821000, IRQ 94 (NMI IRQ 93)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP i8042 SDC + MSM-58321 RTC support loaded (RTC v 1.10d)
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
SCTP: Hash tables configured (established 8192 bind 16384)
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 186k freed
HIL KEYB: HIL keyboard found (did = 0xcf, lang = german)
input0: HIL keyboard on hil0
kernel BUG at slab.c:1130!
HIL PTR: HIL pointer device found (did: 0x68, axis: relative)
HIL PTR: HIL pointer has 3 buttons and 1 sets of 2 axes
input1: HIL mouse on hil0
Adding Swap: 498284k swap-space (priority -1)
EXT3 FS 2.4-0.9.19, 19 August 2002 on sd(8,6), internal journal
kjournald starting.  Commit interval 5 seconds
EXT3 FS 2.4-0.9.19, 19 August 2002 on sd(8,5), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
eth0: link ok.

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Command line for kernel: 'root=/dev/sda6 HOME=/ console=ttyS0 TERM=vt102 palo_k'
Selected kernel: /vmlinux-2.6 from partition 2
ELF32 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 2203048 mediaptr 0x1000
Segment 1 load 0031a000 size 745606 mediaptr 0x21b000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

vice: ID = 'parisc2'
Found devices:
1. Coral SGC Graphics at 0xf8000000 [1] { 10, 0x0, 0x004, 0x00077 }
2. Outfield Core BA at 0xf082f000 [2] { 11, 0x0, 0x009, 0x00070 }
3. Outfield Core SCSI at 0xf0825000 [2/0/1] { 10, 0x0, 0x009, 0x00071 }
4. Outfield Core LAN (802.3) at 0xf0826000 [2/0/2] { 10, 0x0, 0x009, 0x00072 }
5. Outfield Core HIL at 0xf0821000 [2/0/3] { 10, 0x0, 0x009, 0x00073 }
6. Outfield Core RS-232 at 0xf0823000 [2/0/4] { 10, 0x0, 0x009, 0x00075 }
7. Outfield Core RS-232 at 0xf0822000 [2/0/5] { 10, 0x0, 0x009, 0x00075 }
8. Outfield Core Centronics at 0xf0824000 [2/0/6] { 10, 0x0, 0x009, 0x00074 }
9. Outfield FW SCSI at 0xf0830000 [2/0/7] { 10, 0x0, 0x009, 0x0007c }
10. Outfield Audio at 0xf1000000 [2/0/8] { 10, 0x0, 0x009, 0x0007f }
11. Cobra EISA BA at 0xfc000000 [4] { 11, 0x0, 0x004, 0x00076 }
12. Snake Cheetah (735/130) at 0xfffbe000 [8] { 0, 0x0, 0x206, 0x00004 }
13. Memory at 0xfffbf000 [9] { 1, 0x0, 0x037, 0x00009 }
CPU(s): 1 x PA7100 (PCX-T) at 125.000000 MHz
Cutoff version 4 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered
SCSI subsystem initialized
unwind_init: start = 0x1031c060, end = 0x1033d050, entries = 8447
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
Soft power switch support not available.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at MMIO 0xf0823800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xf0822800 (irq = 89) is a 16550A
loop: loaded (max 8 devices)
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xf0826000, IRQ 87
drivers/net/lasi_82596.c: MAC of HP700 LAN read from EEPROM
eth0: 82596 at 0xf0826000, 08 00 09 0B BB 22 IRQ 87.
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0
scsi0 : LASI SCSI 53c700
Using anticipatory io scheduler
  Vendor: IBM       Model: DDRS-34560        Rev: S97B
  Type:   Direct-Access                      ANSI SCSI revision: 02
st: Version 20040403, fixed bufsize 32768, s/g segs 256
scsi0: (4:0) Enabling Tag Command Queuing
SCSI device sda: 8925000 512-byte hdwr sectors (4570 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 >
Attached scsi disk sda at scsi0, channel 0, id 4, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 4, lun 0,  type 0
mice: PS/2 mouse device common for all mice
HP SDC: HP SDC at 0xf0821000, IRQ 94 (NMI IRQ 93)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
Advanced Linux Sound Architecture Driver Version 1.0.6 (Sun Aug 15 07:17:53 200.
Lasi Harmony Audio driver h/w id 20, rev. 0 at 0xf1000000, IRQ 82
ALSA device list:
  #0: ALSA driver for LASI Harmony at h/w, id 20, rev. 0 hpa 0xf1000000, IRQ 82

NET: Registered protocol family 2
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET: Registered protocol family 1
NET: Registered protocol family 17
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 196k freed
INIT: version 2.86 booting
Usage: vt-is-UTF8 [option]
valid options are:
        -q  --quiet    don't print result
        -h --help      display this help text and exit
        -V --version   display version information and exit
Activating swap.
Adding 498284k swap on /dev/sda3.  Priority:-1 extents:1
Checking root file system...
fsck 1.35 (28-Feb-2004)
/dev/sda6: clean, 84780/367264 files, 390625/734320 blocks
EXT3 FS on sda6, internal journal
System time was Fri Sep 24 16:10:41 UTC 2004.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Fri Sep 24 16:10:43 UTC 2004.
Cleaning up ifupdown...done.
Checking all file systems...
fsck 1.35 (28-Feb-2004)
/dev/sda2: clean, 21/7680 files, 12159/30597 blocks
/dev/sda5 has been mounted 27 times without being checked, check forced.
./dev/sda5: 172/121856 files (4.1% non-contiguous), 10151/243675 blocks
Setting kernel variables ...
... done.
Mounting local filesystems...
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda5, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
/dev/sda2 on /boot type ext2 (rw)
/dev/sda5 on /home type ext3 (rw)
Cleaning /tmp /var/run /var/lock.
Running 0dns-down to make sure resolv.conf is ok...done.
Initializing: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces...Internet Software Consortium DHCP Client 2.0pl5
Copyright 1995, 1996, 1997, 1998, 1999 The Internet Software Consortium.
All rights reserved.

Please contribute if you find this software useful.
For info, please visit http://www.isc.org/dhcp-contrib.html

eth0: link ok.
Listening on LPF/eth0/08:00:09:0b:bb:22
Sending on   LPF/eth0/08:00:09:0b:bb:22
Sending on   Socket/fallback/fallback-net
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4
DHCPOFFER from 192.168.0.1
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPACK from 192.168.0.1
bound to 192.168.0.4 -- renewal in 43200 seconds.
done.

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Fri Sep 24 18:11:03 CEST 2004

Initializing random number generator...done.
Recovering nvi editor sessions... done.
Setting up X server socket directory /tmp/.X11-unix...done.
Setting up ICE socket directory /tmp/.ICE-unix...done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting printing system service: cupsd
HIL KEYB: HIL keyboard found (did = 0xcf)
input: HIL keyboard, ID: 207
HIL PTR: HIL pointer device found (did: 0x68, axis: relative)
HIL PTR: HIL pointer has 3 buttons and 1 sets of 2 axes
input: HIL pointer device (HIL mouse), ID: 104
.
Starting internet superserver: inetd.
Starting Samba daemons: nmbd smbd.
Starting OpenBSD Secure Shell server: sshd.
Starting Xprint servers: Xprt.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.
Not starting WINGs display manager (wdm); it is not the default display manager.
Starting X display manager: xdm.
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From - Thu Nov 08 21:32:35 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:22046

On Mon, Sep 27, 2004 at 12:26:44PM +0100, Matthew Wilcox wrote:
> http://www.parisc-linux.org/faq/index.html#support64bit

I just noticed this FAQ is stale. Earlier this year rbrad
fixed PDC support so 32-bit PDC autodetected when running
a 64-bit. I'm fixing the FAQ to reflect this.

grant
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On Mon, Sep 27, 2004 at 12:34:15PM +0100, Matthew Wilcox wrote:
> It's worth turning on Debug memory allocations (DEBUG_SLAB).  That should
> catch this problem earlier.

It changes the problem only slightly...last output is now:

Initializing: /etc/network/ifstate.
Starting hotplug subsystem:
   input   
   input    [success]
   isapnp  
   isapnp   [success]
   net     
   net      [success]
   pci     
     tulip: already loaded
Fusion MPT base driver 3.01.16
Copyright (c) 1999-2004 LSI Logic Corporation
mptbase: Initiating ioc0 bringup
ioc0: 53C1030: Capabilities={Initiator}
mptbase: Initiating ioc1 bringup
ioc1: 53C1030: Capabilities={Initiator}
mptbase: Initiating ioc1 recovery
<end of output>

And I lost the chassis code that gets logged.
I also wonder why we aren't getting HPMC or panic
output from the kernel. :^/

In any case, I'm pretty sure fusion driver is fubarred.

grant
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On Sun, Sep 26, 2004 at 11:33:55PM -0600, Grant Grundler wrote:
> Kernel Fault: Code=15 regs=000000001479c560 (Addr=00000001ffe3b618)
> ...
>  IAOQ[0]: free_block+0xa8/0x1a0
>  IAOQ[1]: free_block+0xac/0x1a0
>  RP(r2): drain_array_locked+0xe4/0x118
> 
> Full console output appended.
> 
> Oh...I just noticed that's right after/while fusion driver initialized.
> I couldn't get that work reliably on c3000 with 2.6.8.1 either.
> So that's my first suspect. :^(

It's worth turning on Debug memory allocations (DEBUG_SLAB).  That should
catch this problem earlier.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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pa,

rt_sigreturn(0x404dbee0)                = -1 EINTR (Interrupted system call)
write(1, "waitid(0x1, 0x54a, 0xbff00b50, 0"..., 36waitid(0x1, 0x54a, 0xbff00b50, 0xd)) = 36
SYS_235(0x1, 0x54a, 0xbff00b50, 0xd, 0x40435c18) = -1 EFAULT (Bad address)

Any clue why the syscall restart has 5 options where the syscall itself
has only 4 parameters?

Above you see SYS_235, which is the # for the waitid. The EFAULT is
probably a mistake on my part. I'm just curious about that random 5th
parameter?

c.
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On Fri, Sep 24, 2004 at 03:33:15PM +0200, Johannes Raspe wrote:
> I tried the "official" 2.6.8 Debian-image and 2.6.8.1-pa11-image but none 
> worked.
> After booting, the message "if this is the last..." about graphic and 
> serial-console is printed and after that (I suppose when the kernel tries to 
> initialize the framebuffer) the screen turns blue, no HDD-activity anymore, 
> the system hangs.
> As far as I can see no other messages.
> With 2.4.27-pa4 everything is fine.

[snip]

I have no idea how stifb works, but perhaps this is the same problem:

http://lists.parisc-linux.org/pipermail/parisc-linux/2004-March/022600.html

Does passing "stifb=bpp:8" on the palo command-line make any difference?
Perhaps the 32 bpp code is broken?  I can't find any other dmesgs posted
to the list with stifb using 32 bpp...
-- 
Stuart Brady
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Am Sonntag, 3. Oktober 2004 00:03 schrieb Stuart Brady:
> On Fri, Sep 24, 2004 at 03:33:15PM +0200, Johannes Raspe wrote:
> > I tried the "official" 2.6.8 Debian-image and 2.6.8.1-pa11-image but none
> > worked.
> > After booting, the message "if this is the last..." about graphic and
> > serial-console is printed and after that (I suppose when the kernel tries
> > to initialize the framebuffer) the screen turns blue, no HDD-activity
> > anymore, the system hangs.
> > As far as I can see no other messages.
> > With 2.4.27-pa4 everything is fine.
>
> [snip]
>
> I have no idea how stifb works, but perhaps this is the same problem:
>
> http://lists.parisc-linux.org/pipermail/parisc-linux/2004-March/022600.html
>
> Does passing "stifb=bpp:8" on the palo command-line make any difference?
> Perhaps the 32 bpp code is broken?  I can't find any other dmesgs posted
> to the list with stifb using 32 bpp...

Hi,

I tried "video=stifb:bpp:8", "stifb=bpp:8", "video=stifb:bpp:32", 
"stifb=bpp:32" with kernels 2.6.4, 2.6.8.1-pa11 and the current 2.6.9-pa 
kernel, all with the same result as before. It does not seem to be the same 
problem mentioned in the posting above, because I could never get a 
2.6.x-kernel running on my machine.

Johannes

-- 
Johannes Raspe - j.raspe@t-online.de
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From: Ard van Breemen <ard@kwaak.net>
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Subject: [parisc-linux] D250/512MB+2 FWDSCSI disk cabinets (holland)
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Sigh,
My energy bill is too high :-(
Nice D250 class hp9000 seeks new budy to have lots of fun.
Comes with working debian pre-installed.
Packages contains:
- hp-9000 D250 tower with single CPU, 512MB, 3xHSC FWDSCSI,
  1x100MBit EISA ethernet, and some weird comm card.
- 2xDisk cabinet (FWD): 4x2gig+1x3gig per cabinet
- big (non-functional) ups (batteries are ok I guess)
- extra battery pack (batteries are also ok I guess)

Comes as 1 package, you have to pick it up yourself. (Yes, also
the ups, I want to get rid of it).
It is excluding the 19" rack, unless you give me a 19" rack as a
replacement.
Place: purmerend in the Netherlands (near Amsterdam), at 1fst
floor.
Again: you have to carry it yourself, I've got back problems...

For more info: just mail me personally...
I don't know if I am still subscribed to the list. When I phased
out the hp9000 in favor of a server that consumes 20% of the hp,
I also found out what the difference is: the hp9000 doesn't die.
The hard-disk of the new server b0rked on me when it got to
handle the mail the hp9000 was "easily" handling.

The system consumes 440W continuosly, that's 132 per disk cabinet
and 180W nominal for the D250. (Peaking at 195W with memory
intensive stuff)
I've also some other goodies that I want to drop in if it makes
you take good care of the hp9000.
(some 4Gig UW disks f.i.)
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From: Thibaut VARENE <T-Bone@parisc-linux.org>
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Subject: [parisc-linux] New PALinux wiki available
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Fellow pa-ckers,

Thanks to the efforts of Randolph, a brand new PA-RISC/Linux wiki is
available for reading and contributing at:

http://wiki.parisc-linux.org/

Please mind that it is still experimental, though, so it might change a
little and experience minor troubles. Bugs might be reported to
Randolph/myself.

Enjoy,


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/
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On Thu, Oct 07, 2004 at 04:02:32PM -0700, Randolph Chung wrote:
> Hi all,
> 
> On a 2.6 SMP kernel, munmap()ing 16MB currently takes on the order of
> 0.8-0.9 seconds on a 440MHz machine. on a UP machine it takes about 5ms.
> 
> profiling shows that we are spending a lot of time flushing caches:
> 
> tausq@ios:~/parisc/linux-2.6$ sort -nr -k3 ~/test/mmap/after |head
>  48586 cpu_idle                                 759.1562
>  37906 machine_restart                          592.2812
>  10951 flush_user_icache_range_asm              304.1944
>  10946 flush_user_dcache_range_asm              304.0556
>    129 flush_kernel_icache_page                   1.2900
>     29 _spin_unlock_bh                            0.6042
>      9 fdsync                                     0.4500
>     10 _spin_unlock_irq                           0.4167
> 
> i believe this is related to the way we implement flush_tlb_mm(). on SMP
> we currently flush the entire tlb, instead of just invaliding the
> process context. this is needed to get the correct behavior if a
> multithreaded app is simultaneously running on >1 CPUs. James had
> suggested previously that we might be able to do something smarter, such
> as sending an ipi to the other CPU to switch the context. 
> 
> would anybody like to look into this problem, or suggest some ways to
> tackle this?

Is munmap() speed really a big issue? Does userland see the benefits of
a faster flush_tlb_mm()?

Perhaps if you call dlclose() *a lot* you might notice.

Or if you create and destroy threads really quickly.

Aside from that, who else in userspace is a big munmap caller?

c.

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> Is munmap() speed really a big issue? Does userland see the benefits of
> a faster flush_tlb_mm()?

actually i was wrong, the problem is not with flush_tlb_mm(), but with
flush_user_{dcache,icache}_range.

> Perhaps if you call dlclose() *a lot* you might notice.
> 
> Or if you create and destroy threads really quickly.
> 
> Aside from that, who else in userspace is a big munmap caller?

lots of apps use mmap a lot..... but even if they don't, 0.9 seconds is
a very long time to make somebody wait.

i made some changes to the flush_user_{dcache,icache}_range
implementation and it seems to be better now. will post the patch
tomorrow after some cleanups.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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First entry is for 2.4.20-pa24 SMP
Second entry is for 2.6.9-rc3-pa3 SMP, with a cache flushing patch

Machine is a 440MHz a500 with 5GB of RAM.

In general our performance seems to have dropped a bit :(

randolph

                 L M B E N C H  2 . 0   S U M M A R Y
                 ------------------------------------


Basic system parameters
----------------------------------------------------
Host                 OS Description              Mhz
                                                    
--------- ------------- ----------------------- ----
ios       Linux 2.4.20-        hppa64-linux-gnu  440
ios       Linux 2.6.9-r        hppa64-linux-gnu  440

Processor, Processes - times in microseconds - smaller is better
----------------------------------------------------------------
Host                 OS  Mhz null null      open selct sig  sig  fork exec sh  
                             call  I/O stat clos TCP   inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ----
ios       Linux 2.4.20-  440 0.73 1.85 10.2 11.8 110.8 2.17 16.9 17.K 41.K 85.K
ios       Linux 2.6.9-r  440 0.77 1.19 13.2 15.4  71.4 2.23 11.1 2590 10.K 33.K

Context switching - times in microseconds - smaller is better
-------------------------------------------------------------
Host                 OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
                        ctxsw  ctxsw  ctxsw ctxsw  ctxsw   ctxsw   ctxsw
--------- ------------- ----- ------ ------ ------ ------ ------- -------
ios       Linux 2.4.20- 5.630 5.1500 4.9900 9.0800   23.4    52.1   175.8
ios       Linux 2.6.9-r  13.0   12.7   12.2   23.2  110.9    62.5   179.0

*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host                 OS 2p/0K  Pipe AF     UDP  RPC/   TCP  RPC/ TCP
                        ctxsw       UNIX         UDP         TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
ios       Linux 2.4.20- 5.630  20.4 48.4  89.2 172.5 114.1 351.5 1000
ios       Linux 2.6.9-r  13.0  73.8 48.2 144.5 209.0 252.3 250.2     

File & VM system latencies in microseconds - smaller is better
--------------------------------------------------------------
Host                 OS   0K File      10K File      Mmap    Prot    Page	
                        Create Delete Create Delete  Latency Fault   Fault 
--------- ------------- ------ ------ ------ ------  ------- -----   ----- 
ios       Linux 2.4.20-  130.0   80.0  509.9  180.0  3120.0K 603.4    58.0
ios       Linux 2.6.9-r   93.0   67.0  302.9  165.0    95.1K 732.1    42.0

*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------
Host                OS  Pipe AF    TCP  File   Mmap  Bcopy  Bcopy  Mem   Mem
                             UNIX      reread reread (libc) (hand) read write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
ios       Linux 2.4.20- 49.1 81.0 33.6   74.0  268.4  201.8  168.8 260. 250.9
ios       Linux 2.6.9-r 224. 328. 183.  283.6  264.2  184.3  155.0 256. 233.1

Memory latencies in nanoseconds - smaller is better
    (WARNING - may not be correct, check graphs)
---------------------------------------------------
Host                 OS   Mhz  L1 $   L2 $    Main mem    Guesses
--------- -------------  ---- ----- ------    --------    -------
ios       Linux 2.4.20-   440  20.0   20.0  220.0    No L1 cache?
ios       Linux 2.6.9-r   440  23.0   22.0  233.0    No L1 cache?
-- 
Randolph Chung
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http://www.tausq.org/
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Hi all,

On a 2.6 SMP kernel, munmap()ing 16MB currently takes on the order of
0.8-0.9 seconds on a 440MHz machine. on a UP machine it takes about 5ms.

profiling shows that we are spending a lot of time flushing caches:

tausq@ios:~/parisc/linux-2.6$ sort -nr -k3 ~/test/mmap/after |head
 48586 cpu_idle                                 759.1562
 37906 machine_restart                          592.2812
 10951 flush_user_icache_range_asm              304.1944
 10946 flush_user_dcache_range_asm              304.0556
   129 flush_kernel_icache_page                   1.2900
    29 _spin_unlock_bh                            0.6042
     9 fdsync                                     0.4500
    10 _spin_unlock_irq                           0.4167

i believe this is related to the way we implement flush_tlb_mm(). on SMP
we currently flush the entire tlb, instead of just invaliding the
process context. this is needed to get the correct behavior if a
multithreaded app is simultaneously running on >1 CPUs. James had
suggested previously that we might be able to do something smarter, such
as sending an ipi to the other CPU to switch the context. 

would anybody like to look into this problem, or suggest some ways to
tackle this?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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In reference to a message from Randolph Chung, dated Oct 07:
> i made some changes to the flush_user_{dcache,icache}_range
> implementation and it seems to be better now. will post the patch
> tomorrow after some cleanups.

Here's the patch. Any comments before i check it in?

On the a500 that i am testing on, this bumps the cache threshold up 
from 0.5MB to 1MB after the timing.

I've retained the assumption in the code that the icache and dcache
thresholds are the same. i don't know if that's really a good
assumption though.

One more thing -- the performance of flush_data_cache() (i.e. the 
architected whole-cache flush) seems to be dependent on the current
contents of the cache. i suppose that when the cache is more heavily
populated it takes longer to flush. so if you do multiple timings of
flush_data_cache() one after the other, the calls after the first tend
to be much faster (2-3x in one experiment). i've decided to only use the
first measurement, with the assumption that on a running system the
cache is normally fairly populated.

randolph

Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/cache.c,v
retrieving revision 1.21
diff -u -p -r1.21 cache.c
--- arch/parisc/kernel/cache.c	13 Sep 2004 15:22:24 -0000	1.21
+++ arch/parisc/kernel/cache.c	8 Oct 2004 16:48:22 -0000
@@ -55,6 +55,11 @@ flush_data_cache(void)
 {
 	on_each_cpu((void (*)(void *))flush_data_cache_local, NULL, 1, 1);
 }
+void 
+flush_instruction_cache(void)
+{
+	on_each_cpu((void (*)(void *))flush_instruction_cache_local, NULL, 1, 1);
+}
 #endif
 
 void
@@ -326,4 +331,36 @@ void clear_user_page_asm(void *page, uns
 	purge_tlb_start();
 	__clear_user_page_asm(page, vaddr);
 	purge_tlb_end();
+}
+
+#define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
+int parisc_cache_flush_threshold = FLUSH_THRESHOLD;
+
+void parisc_setup_cache_timing(void)
+{
+	unsigned long rangetime, alltime;
+	extern char _text;	/* start of kernel code, defined by linker */
+	extern char _end;	/* end of BSS, defined by linker */
+	unsigned long size;
+
+	alltime = mfctl(16);
+	flush_data_cache();
+	alltime = mfctl(16) - alltime;
+
+	size = (unsigned long)(&_end - _text);
+	rangetime = mfctl(16);
+	flush_kernel_dcache_range((unsigned long)&_text, size);
+	rangetime = mfctl(16) - rangetime;
+
+	printk(KERN_DEBUG "Whole cache flush %lu cycles, flushing %lu bytes %lu cycles\n",
+		alltime, size, rangetime);
+
+	/* Racy, but if we see an intermediate value, it's ok too... */
+	parisc_cache_flush_threshold = size * alltime / rangetime;
+
+	parisc_cache_flush_threshold = (parisc_cache_flush_threshold + L1_CACHE_BYTES - 1) &~ (L1_CACHE_BYTES - 1); 
+	if (!parisc_cache_flush_threshold)
+		parisc_cache_flush_threshold = FLUSH_THRESHOLD;
+
+	printk("Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
Index: arch/parisc/kernel/setup.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/setup.c,v
retrieving revision 1.8
diff -u -p -r1.8 setup.c
--- arch/parisc/kernel/setup.c	4 Oct 2004 19:12:49 -0000	1.8
+++ arch/parisc/kernel/setup.c	8 Oct 2004 16:48:22 -0000
@@ -310,6 +310,8 @@ static int __init parisc_init(void)
 			boot_cpu_data.cpu_hz / 1000000,
 			boot_cpu_data.cpu_hz % 1000000	);
 
+	parisc_setup_cache_timing();
+
 	/* These are in a non-obvious order, will fix when we have an iotree */
 #if defined(CONFIG_IOSAPIC)
 	iosapic_init();
Index: include/asm-parisc/cache.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/cache.h,v
retrieving revision 1.3
diff -u -p -r1.3 cache.h
--- include/asm-parisc/cache.h	5 Apr 2004 02:47:39 -0000	1.3
+++ include/asm-parisc/cache.h	8 Oct 2004 16:48:44 -0000
@@ -34,6 +34,7 @@ extern void flush_data_cache_local(void)
 extern void flush_instruction_cache_local(void); /* flushes local code-cache only */
 #ifdef CONFIG_SMP
 extern void flush_data_cache(void); /* flushes data-cache only (all processors) */
+extern void flush_instruction_cache(void); /* flushes i-cache only (all processors) */
 #else
 #define flush_data_cache flush_data_cache_local
 #define flush_instruction_cache flush_instruction_cache_local
Index: include/asm-parisc/cacheflush.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/cacheflush.h,v
retrieving revision 1.15
diff -u -p -r1.15 cacheflush.h
--- include/asm-parisc/cacheflush.h	30 Sep 2004 12:08:46 -0000	1.15
+++ include/asm-parisc/cacheflush.h	8 Oct 2004 16:48:44 -0000
@@ -33,36 +33,25 @@ static inline void flush_cache_all(void)
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
 
-/* The following value needs to be tuned and probably scaled with the
- * cache size.
- */
-
-#define FLUSH_THRESHOLD 0x80000
+extern int parisc_cache_flush_threshold;
+void parisc_setup_cache_timing(void);
 
 static inline void
 flush_user_dcache_range(unsigned long start, unsigned long end)
 {
-#ifdef CONFIG_SMP
-	flush_user_dcache_range_asm(start,end);
-#else
-	if ((end - start) < FLUSH_THRESHOLD)
+	if ((end - start) < parisc_cache_flush_threshold)
 		flush_user_dcache_range_asm(start,end);
 	else
 		flush_data_cache();
-#endif
 }
 
 static inline void
 flush_user_icache_range(unsigned long start, unsigned long end)
 {
-#ifdef CONFIG_SMP
-	flush_user_icache_range_asm(start,end);
-#else
-	if ((end - start) < FLUSH_THRESHOLD)
+	if ((end - start) < parisc_cache_flush_threshold)
 		flush_user_icache_range_asm(start,end);
 	else
 		flush_instruction_cache();
-#endif
 }
 
 extern void flush_dcache_page(struct page *page);
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> On the a500 that i am testing on, this bumps the cache threshold up 
> from 0.5MB to 1MB after the timing.

sorry, that should read:
"On the a500 that i am testing on, this bumps the cache threshold up 
 from 0.5MB to 2MB after the timing."

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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pa,

http://www.parisc-linux.org/~carlos/glibc-work/glibc-2.3.3-debs-2004-10-08/

- Forward ported the non-arch debian patches.
- Updated the cvs tarball.

The main difference I believe is in the 'non-arch' debian patches. I
carried as many forward as was possible. This work will probably make it
back to a debian experimental glibc :)

This release is for those of you that like to test out new glibc's...

The previous glibc had problems with gdb's testsuite and symbol
resolution. Running a test on that now.

c.

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On Fri, Oct 08, 2004 at 09:59:26AM -0700, Randolph Chung wrote:
> +#define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
> +int parisc_cache_flush_threshold = FLUSH_THRESHOLD;

6 monthes or so ago Alex Williamson ran some perf tests comparing a
CONSTANT vs global when tuning the IOMMU page size on IA64 ZX1 chipsets.
IIRC, using a global was 3-5% slower if it was the same value as the constant.
I don't know if parisc will offer a similar performance difference and if so,
a per arch (PA11 vs PA20) should work fine for everything but PA8800.
It may not be a problem, just something to consider.

The rest looks "correct" to me - ie I don't see any obviously wrong.

thanks,
grant
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From: James Bottomley <James.Bottomley@SteelEye.com>
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Subject: HIL panic on boot with 2.6.9-rc4-pa2
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I got this on a 64bit kernel on a C360 ... it looks like the driver
detach path is causing a problem (HIL needs to be built in for a
standard kernel to run on any machine).

James


HP SDC: : IRQ not found for SDC IO=0xffffffffffe01000 IRQ=0x0
NMI=0xffffffff
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
kfree_debugcheck: bad ptr 104bf828h.
kernel BUG at mm/slab.c:1851!
Backtrace:
 [<00000000101161a8>] dump_stack+0x18/0x28
 [<0000000010175a60>] kfree_debugcheck+0xb8/0xf8
 [<000000001017722c>] kfree+0x3c/0x128
 [<00000000102432b4>] serio_release_port+0x14/0x20
 [<0000000010251368>] device_release+0x30/0xa0
 [<00000000101f4cac>] kobject_cleanup+0xc4/0xd0
 [<00000000101f4ccc>] kobject_release+0x14/0x20
 [<00000000101f51d0>] kref_put+0xa0/0x128
 [<00000000101f4cfc>] kobject_put+0x24/0x30
 [<00000000102517fc>] put_device+0x14/0x20
 [<000000001025191c>] device_unregister+0x2c/0x40
 [<000000001024346c>] serio_destroy_port+0xf4/0x110
 [<00000000102439b8>] serio_unregister_port+0x58/0xb0
 [<0000000010247c44>] hil_mlc_unregister+0xf4/0x158
 [<000000001044e6bc>] hp_sdc_mlc_init+0x144/0x180
 [<0000000010438a88>] do_initcalls+0xb0/0x188

Kernel panic - not syncing: BUG!
 



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> as you've probably noticed upstream has changed the way this function is
> defined between gcc 2.3.2 and 2.3.3. not sure exactly what's wrong, but
> as you said it'll be interesting to build one on i386 and compare...

Upstream i386 and linuxthreads is unbuildable. I don't really want to
fix i386 + linuxthreads to debug this, when in reality we should just
change it so that it's not hidden :)

I'll set this to build.

c.

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Subject: Re: [parisc-linux] HIL panic on boot with 2.6.9-rc4-pa2
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On Tue, 12 Oct 2004, James Bottomley wrote:

> I got this on a 64bit kernel on a C360 ... it looks like the driver
> detach path is causing a problem (HIL needs to be built in for a
> standard kernel to run on any machine).
>
> James
>
>
> HP SDC: : IRQ not found for SDC IO=0xffffffffffe01000 IRQ=0x0
> NMI=0xffffffff
> HP SDC: No SDC found.
> HP SDC MLC: Registering the System Domain Controller's HIL MLC.
> HP SDC MLC: Request for raw HIL ISR hook denied
> kfree_debugcheck: bad ptr 104bf828h.
> kernel BUG at mm/slab.c:1851!
> Backtrace:
>  [<00000000101161a8>] dump_stack+0x18/0x28
>  [<0000000010175a60>] kfree_debugcheck+0xb8/0xf8
>  [<000000001017722c>] kfree+0x3c/0x128
>  [<00000000102432b4>] serio_release_port+0x14/0x20
>  [<0000000010251368>] device_release+0x30/0xa0
>  [<00000000101f4cac>] kobject_cleanup+0xc4/0xd0
>  [<00000000101f4ccc>] kobject_release+0x14/0x20
>  [<00000000101f51d0>] kref_put+0xa0/0x128
>  [<00000000101f4cfc>] kobject_put+0x24/0x30
>  [<00000000102517fc>] put_device+0x14/0x20
>  [<000000001025191c>] device_unregister+0x2c/0x40
>  [<000000001024346c>] serio_destroy_port+0xf4/0x110
>  [<00000000102439b8>] serio_unregister_port+0x58/0xb0
>  [<0000000010247c44>] hil_mlc_unregister+0xf4/0x158
>  [<000000001044e6bc>] hp_sdc_mlc_init+0x144/0x180
>  [<0000000010438a88>] do_initcalls+0xb0/0x188
>
> Kernel panic - not syncing: BUG!

Hey, I got this same panic today when I tried that.  32-bit kernel on a
J5000 (smp).  Since I'm busy with other stuff I just backed down the the
"old faithful" kernel that always seems to work for me (2.6.9-rc2-pa4).

Just a data point; I don't really have much time to fiddle with it.

I am, however, (on a totally unrelated side note) having great success
with the glibc version I built a week or so ago ... I've built lots of
stuff in my steadily-growing chroot environment.  Whee!
--
Elliott



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This is now fixed in CVS (Kernel 2.6.9-rc4-pa3).

Regards,
Helge

On Wednesday 13 October 2004 00:10, Elliott Potter wrote:
> On Tue, 12 Oct 2004, James Bottomley wrote:
> 
> > I got this on a 64bit kernel on a C360 ... it looks like the driver
> > detach path is causing a problem (HIL needs to be built in for a
> > standard kernel to run on any machine).
> >
> > James
> >
> >
> > HP SDC: : IRQ not found for SDC IO=0xffffffffffe01000 IRQ=0x0
> > NMI=0xffffffff
> > HP SDC: No SDC found.
> > HP SDC MLC: Registering the System Domain Controller's HIL MLC.
> > HP SDC MLC: Request for raw HIL ISR hook denied
> > kfree_debugcheck: bad ptr 104bf828h.
> > kernel BUG at mm/slab.c:1851!
> > Backtrace:
> >  [<00000000101161a8>] dump_stack+0x18/0x28
> >  [<0000000010175a60>] kfree_debugcheck+0xb8/0xf8
> >  [<000000001017722c>] kfree+0x3c/0x128
> >  [<00000000102432b4>] serio_release_port+0x14/0x20
> >  [<0000000010251368>] device_release+0x30/0xa0
> >  [<00000000101f4cac>] kobject_cleanup+0xc4/0xd0
> >  [<00000000101f4ccc>] kobject_release+0x14/0x20
> >  [<00000000101f51d0>] kref_put+0xa0/0x128
> >  [<00000000101f4cfc>] kobject_put+0x24/0x30
> >  [<00000000102517fc>] put_device+0x14/0x20
> >  [<000000001025191c>] device_unregister+0x2c/0x40
> >  [<000000001024346c>] serio_destroy_port+0xf4/0x110
> >  [<00000000102439b8>] serio_unregister_port+0x58/0xb0
> >  [<0000000010247c44>] hil_mlc_unregister+0xf4/0x158
> >  [<000000001044e6bc>] hp_sdc_mlc_init+0x144/0x180
> >  [<0000000010438a88>] do_initcalls+0xb0/0x188
> >
> > Kernel panic - not syncing: BUG!
> 
> Hey, I got this same panic today when I tried that.  32-bit kernel on a
> J5000 (smp).  Since I'm busy with other stuff I just backed down the the
> "old faithful" kernel that always seems to work for me (2.6.9-rc2-pa4).
> 
> Just a data point; I don't really have much time to fiddle with it.
> 
> I am, however, (on a totally unrelated side note) having great success
> with the glibc version I built a week or so ago ... I've built lots of
> stuff in my steadily-growing chroot environment.  Whee!

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From: Thibaut VARENE <varenet@parisc-linux.org>
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Subject: Re: [parisc-linux] "find" bug, kernel 2.6.8.1-pa11?
Date: Sat, 16 Oct 2004 00:09:01 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:22066

Replying to myself since i have news:

I changed the nfs mount option to switch back from tcp to udp, and got rid
of the "value too loarge" messages, but:

JukeBox:/home/varenet# find /exports/ > /tmp/test
find: memory exhausted
JukeBox:/home/varenet# wc -l /tmp/test 
570 /tmp/test

So i can't really tell whether the "value too large" messages didn't show
because i switched to udp, or because not enough file where parsed. I'd go
for the latter, tho.

Unfortunately i can't mount the HD containing that much data on a PALinux
box, to tell whether that bug is network related (which seems likely to
me), or if that's something else.

HTH anyway

T-Bone

On Fri, 15 Oct 2004 23:37:57+0200 Thibaut VARENE
<varenet@parisc-linux.org> wrote:

> I should have mentionned this already, but the box is regularly updated,
> and the bugreport was sent after a fresh dist-upgrade. Nonetheless, this
> is a bug that has been affecting me for quite some time ("value too
> large for defined data type"), but the "memory exhausted" sounds new to
> me.
> 
> This is a cron job, so i wasn't paying much attention, until i noticed
> that things were actually getting worse...
> 
> HTH,
> 
> T-Bone
> 
> On Fri, 15 Oct 2004 22:24:40 +0200
> Helge Deller <deller@gmx.de> wrote:
> 
> > Hi Thibaut,
> > 
> > in case you did not apt-get updated' your machine to latest stuff,
> > please do so. I saw a lot of those errors with old userspace-binaries
> > as well (e.g. even after login with ssh, or while using "screen").
> > Updating fixed everything.
> > 
> > Just an idea...
> > 
> > Helge
> > 
> > 
> > On Friday 15 October 2004 14:17, Thibaut VARENE wrote:
> > > Hi,
> > > 
> > > Do we have some kind of bug here? See:
> > > 
> > > /exports contains several NFS mountpoints:
> > > 
> > > [varenet@JukeBox /exports]$ mount | grep nfs
> > > npyu:/Volumes/Atom/racine on /exports/npyu type nfs  
> > > (ro,noexec,soft,nolock,rsize=8192,wsize=8192,tcp,addr=147.215.7.13)
> > > neko:/home/ftp/mp3_1 on /exports/neko/mp3-1 type nfs  
> > > (ro,noexec,soft,nolock,rsize=8192,wsize=8192,addr=147.215.80.181)
> > > 
> > > Now see what happens:
> > > 
> > > [varenet@JukeBox /exports]$ find . > /home/varenet/playlistnow
> > > find: ./npyu/boxon/caprice/Metal/Royal Hunt - The watchers: Value
> > > too large for defined data type
> > > find: ./npyu/boxon/clubpc/Ziq/A5  
> > > (Darmstadt)/Warmduscher_Vs_Overdog_-_Live_at_A5_(Darmstadt)-DAB-12-
> > > 30 -2003-OMA: Value too large for defined data type
> > > find: ./npyu/boxon/done/Keeper Of The Seven Keys II: Value too large
> > >  
> > > for defined data type
> > > find: ./npyu/boxon/done/ROLLING STONES - Albumes 1964-1971 - CD1 de 
> > > BaTMaN/THE ROLLING STONES - 1965 - December's Children: Value too
> > > large  for defined data type
> > > find: ./npyu/boxon/samy/Vrac/pop: Value too large for defined data
> > > type find: ./npyu/boxon/samy/Walt Disney Phil Collins: Value too
> > > large for  defined data type
> > > find: ./npyu/boxon/samy/albums/ALADDIN: Value too large for defined 
> > > data type
> > > find: ./npyu/boxon/samy/albums/jah/THE selection: Value too large
> > > for defined data type
> > > find: ./npyu/boxon/samy/squarepusher: Value too large for defined
> > > data
> > >  
> > > type
> > > find: ./npyu/iTunes/Benny Benassi/Hypnotica: Value too large for  
> > > defined data type
> > > find: memory exhausted
> > > 
> > > [varenet@JukeBox /exports]$ wc -l /home/varenet/playlistnow
> > > 14023 /home/varenet/playlistnow
> > > 
> > > [varenet@JukeBox /exports]$ uname -a
> > > Linux JukeBox 2.6.8.1-pa11 #1 Sat Sep 11 19:54:13 CEST 2004 parisc  
> > > GNU/Linux
> > > 
> > > Top showed that find ate all available memory before being killed:
> > > 22499 varenet   25   0  257m 243m 1584 R 65.4 64.6   2:12.61 find
> > > 
> > > That box has 492MB RAM, it's a B132L+, running sarge.
> > > 
> > > /exports has more than 60000 files, representing about 200GB of
> > > data.
> > > 
> > > running find on one of the origin folders (the biggest actually) on
> > > the  NFS server host shows:
> > > 
> > > [varenet@npyu /Volumes/Atom]$ find racine/ | wc -l
> > >     48867
> > > 
> > > (npyu is an OSX box, fwiw).
> > > 
> > > HTH,
> > > 
Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/



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Xref: news.gmane.org gmane.linux.ports.parisc:22067

Hi Thibaut,

in case you did not apt-get updated' your machine to latest stuff, please do so.
I saw a lot of those errors with old userspace-binaries as well (e.g. even after login with ssh, or while using "screen"). 
Updating fixed everything.

Just an idea...

Helge


On Friday 15 October 2004 14:17, Thibaut VARENE wrote:
> Hi,
> 
> Do we have some kind of bug here? See:
> 
> /exports contains several NFS mountpoints:
> 
> [varenet@JukeBox /exports]$ mount | grep nfs
> npyu:/Volumes/Atom/racine on /exports/npyu type nfs  
> (ro,noexec,soft,nolock,rsize=8192,wsize=8192,tcp,addr=147.215.7.13)
> neko:/home/ftp/mp3_1 on /exports/neko/mp3-1 type nfs  
> (ro,noexec,soft,nolock,rsize=8192,wsize=8192,addr=147.215.80.181)
> 
> Now see what happens:
> 
> [varenet@JukeBox /exports]$ find . > /home/varenet/playlistnow
> find: ./npyu/boxon/caprice/Metal/Royal Hunt - The watchers: Value too  
> large for defined data type
> find: ./npyu/boxon/clubpc/Ziq/A5  
> (Darmstadt)/Warmduscher_Vs_Overdog_-_Live_at_A5_(Darmstadt)-DAB-12-30 
> -2003-OMA: Value too large for defined data type
> find: ./npyu/boxon/done/Keeper Of The Seven Keys II: Value too large  
> for defined data type
> find: ./npyu/boxon/done/ROLLING STONES - Albumes 1964-1971 - CD1 de  
> BaTMaN/THE ROLLING STONES - 1965 - December's Children: Value too large  
> for defined data type
> find: ./npyu/boxon/samy/Vrac/pop: Value too large for defined data type
> find: ./npyu/boxon/samy/Walt Disney Phil Collins: Value too large for  
> defined data type
> find: ./npyu/boxon/samy/albums/ALADDIN: Value too large for defined  
> data type
> find: ./npyu/boxon/samy/albums/jah/THE selection: Value too large for  
> defined data type
> find: ./npyu/boxon/samy/squarepusher: Value too large for defined data  
> type
> find: ./npyu/iTunes/Benny Benassi/Hypnotica: Value too large for  
> defined data type
> find: memory exhausted
> 
> [varenet@JukeBox /exports]$ wc -l /home/varenet/playlistnow
> 14023 /home/varenet/playlistnow
> 
> [varenet@JukeBox /exports]$ uname -a
> Linux JukeBox 2.6.8.1-pa11 #1 Sat Sep 11 19:54:13 CEST 2004 parisc  
> GNU/Linux
> 
> Top showed that find ate all available memory before being killed:
> 22499 varenet   25   0  257m 243m 1584 R 65.4 64.6   2:12.61 find
> 
> That box has 492MB RAM, it's a B132L+, running sarge.
> 
> /exports has more than 60000 files, representing about 200GB of data.
> 
> running find on one of the origin folders (the biggest actually) on the  
> NFS server host shows:
> 
> [varenet@npyu /Volumes/Atom]$ find racine/ | wc -l
>     48867
> 
> (npyu is an OSX box, fwiw).
> 
> HTH,
> 
> Thibaut VARENE
> The PA/Linux ESIEE Team
> http://www.pateam.org/
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
_______________________________________________
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On Thu, Oct 21, 2004 at 06:08:03PM +0200, Joel Soete wrote:
> I don't have any pb here to build it for my c110 so I presume that's another
> compiler pb.
> Here I use a debian unstable :) with
> # gcc -v
> Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3.5/specs

I'm pretty sure Martin's using 3.4 which is noticably pickier about
inlining.  I had a quick look at the parport_gsc stuff and it looks like
a bit of a mess.  I'd start by moving everything from parport_gsc.h
into parport_gsc.c or at least moving asm-parisc/parport_gs.h to
drivers/parport/.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] b180_defconfig 2.6.9-pa1 keyboard support?
Date: Sat, 23 Oct 2004 22:57:16 -0600
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Hi,
I just tried the prebuilt 2.6.9-pa1 kernel for B180
and the keyboard didn't work:

http://cvs.parisc-linux.org/download/linux-2.6/autobuild/b180_defconfig/palinux-b180-defconfig-2.6.9-pa1_0-2_all.deb

I didn't see any console output for keyboard/HID output like
I did for PS/2 mouse.  Is this a known bug or is something
wrong with the default config file?

Sorry, this is with gfx console and I couldn't grab the dmesg output.
Networking didn't come up and I didn't have time (machine went home with
the 13y old owner) to fixup the networking. I know the keyboard worked
fine with the 2.6.6 kernel that was already on the machine.

It was kinda frustrating to replace the kernel in order to pick up
harmony audio driver fixes and then have something like keyboard
not work.

thanks,
grant
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Subject: [parisc-linux] console on ttyS0 broken with 2.6.9-bk6-pa1 ?
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I just compiled/booted the latest CVS kernel (2.6.9-bk6-pa1) which seems to boot fine.
Sadly using a serial console is broken. Any ideas ?

This is the bootlog in minicom:

palo ipl 0.99 root@P100 Sat Apr 13 22:21:21 CEST 2002

Boot image contains:
    0/vmlinux32 4714377 bytes @ 0x8000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'HOME=/ root=/dev/sda3 ip=bootp console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 32-bit kernelELF32 executable
Entry 00100368 first 00100000 n 1
Segment 0 load 00100000 size 3780741 mediaptr 0x1000
Branching to kernel entry point 0x00100368.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.9-bk6-pa1 (root@p100) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #96 Sun Oct 24 15:44:48 CEST 2004
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 000060a0 00000481 00000000 00000000 773c7d2c 00000000 00000004 00000072 00000072
vers  0000000c
model 9000/715
Total Memory: 160 Mb
Built 1 zonelists
Kernel command line: HOME=/ root=/dev/sda3 ip=bootp console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux

....<lot's of other messages skipped...>

Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at MMIO 0xf0105800 (irq = 90) is a 16550A
Linux version 2.6.9-bk6-pa1 (root@p100) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #96 Sun Oct 24 15:44:48 CEST 2004
Linux version 2.6.9-bk6-pa1 (root@p100) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #96 Sun Oct 24 15:44:48 CEST 2004
Linux version 2.6.9-bk6-pa1 (root@p100) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #96 Sun Oct 24 15:44:48 CEST 2004
Linux version 2.6.9-bk6-pa1 (root@p100) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #96 Sun Oct 24 15:44:48 CEST 2004
<...this last line continues forever...>
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On Tuesday 26 October 2004 09:52, Andy Walker wrote:
> Looks like CRX/HCRX is suffering from chronic bitrot, possibly exarcebated
> by the ia32/ia64-centric FB patches that have been going in lately.
> 
> So, is there anyone (Helge?) who has time and knowledge to look into
> this? I can boot the B132L with the console on Vis-EG and torture the
> HCRX24 on fb1 if that helps, but some clues would be good.

Hi Andy,

I have two problems:
a) my time is sadly absolutely limited ATM,
b) I don't have any 24bit (HCRX or similiar) card - Maybe someone does not need his (e.g. as PCI (if it exists at all), or GSC, or EISA) ?

Anyway, I'll try to look into this at the weekend but right now I have no idea.

Helge
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serial console is sadly still broken for me...

Linux version 2.6.9-bk6-pa4 (root@p100) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #98 Wed Oct 27 08:05:48 CEST 2004                         
Kernel command line: HOME=/ root=/dev/sda3 ip=bootp console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
....
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
Serial: device 0xf0105000 not configured.
Enable support for Wax, Lasi, Asp or Dino.
Serial: device 0xf0202000 not configured.
Enable support for Wax, Lasi, Asp or Dino.
Backtrace:
 [<1024b53c>] serial8250_get_divisor+0x4c/0x58
 [<1024b5ec>] serial8250_set_termios+0xa4/0x36c
 [<1045df48>] uart_set_options+0xe8/0x148
 [<1045e1c8>] serial8250_console_setup+0xb4/0xc8
 [<1012b2e0>] register_console+0x1b0/0x224
 [<1045e1f4>] serial8250_console_init+0x18/0x48
 [<1045e4b4>] serial8250_pci_init+0x20/0x30
 [<1044d4e4>] do_initcalls+0x8c/0x138
 [<10103d70>] init+0x38/0x104
 [<1010fc5c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=13 regs=100ac400 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 ffffffff 1024b53c 104d5e98
r04-07  00000000 100ac2c8 00000013 103ca010
r08-11  1049d318 1034c800 00000000 1034c800
r12-15  1036f800 1034c800 104a7810 103cb010
r16-19  f000b858 00000002 00000000 00009600
r20-23  00000cb0 104d5e98 00000000 00000000
r24-27  00000000 00000000 00000000 103b1010
r28-31  00000000 1f972880 100ac400 10246324
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1020578c 10205790
 IIR: b3202000    ISR: 00000000  IOR: 10205798
 CPU:        0   CR30: 100ac000 CR31: 10444000
 ORIG_R28: 100ac540
 IAOQ[0]: $$divU+0xc/0x210
 IAOQ[1]: $$divU+0x10/0x210
 RP(r2): serial8250_get_divisor+0x4c/0x58
Kernel panic - not syncing: Kernel Fault

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Subject: Fwd: Re: [parisc-linux] Re: STI crash on B132L with HCRX-24
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Hi Helge,

I just noticed that I lost my text-console. Don't know if this is the patched 
stifb.c (I cant' check either :-)). The getty processes are started on tty1 
to tty6, but switching to those consoles with "CTRL+ALT+F1-6" only gives a 
black screen.
After switching system-console to graphics there are no bootmessages, I have 
to switch back to serial console to see them.
X-Server still is working fine.

Any suggestions?

Best regards Johannes

----------  Weitergeleitete Nachricht  ----------

Subject: Re: [parisc-linux] Re: STI crash on B132L with HCRX-24
Date: Freitag, 29. Oktober 2004 21:35
From: Johannes Raspe <j.raspe@t-online.de>
To: Helge Deller <deller@gmx.de>
Cc: "Andy Walker" <ajwalker@broadpark.no>, parisc-linux@lists.parisc-linux.org

Am Donnerstag, 28. Oktober 2004 23:51 schrieb Helge Deller:
> Hi,
>
> could you please test this patch to stifb.c ?
> It compiles, but is else absolutely untested....
>
> Helge

Hi Helge,

you are a wizard!!
After patching and compiling a 2.6.9-bk6-pa7-kernel it boots fine in 32bpp,
did not try 8bpp yet, but could do so if useful.
The hppa "boot-penguin" looks a little bit psychedlic but everything,
 included X-server with "DefaultDepth 24", runs fine.
Will this patch make it into the kernel tree?

Many thanks for your work

Johannes

--
Johannes Raspe - j.raspe@t-online.de
GnuPG-Key ID: D342E105
Fingerprint: D681 F800 FB2D 913E D14C 1F17 C3DB B1F1 D342 E105

-------------------------------------------------------

-- 
Johannes Raspe - j.raspe@t-online.de
GnuPG-Key ID: D342E105
Fingerprint: D681 F800 FB2D 913E D14C 1F17 C3DB B1F1 D342 E105



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Am Donnerstag, 28. Oktober 2004 23:51 schrieb Helge Deller:
> Hi,
>
> could you please test this patch to stifb.c ?
> It compiles, but is else absolutely untested....
>
> Helge

Hi Helge,

you are a wizard!!
After patching and compiling a 2.6.9-bk6-pa7-kernel it boots fine in 32bpp, 
did not try 8bpp yet, but could do so if useful.
The hppa "boot-penguin" looks a little bit psychedlic but everything, included 
X-server with "DefaultDepth 24", runs fine.
Will this patch make it into the kernel tree?

Many thanks for your work

Johannes

-- 
Johannes Raspe - j.raspe@t-online.de
GnuPG-Key ID: D342E105
Fingerprint: D681 F800 FB2D 913E D14C 1F17 C3DB B1F1 D342 E105



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Subject: Re: Fwd: Re: [parisc-linux] Re: STI crash on B132L with HCRX-24
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Hi Johannes,

On Friday 29 October 2004 22:28, Johannes Raspe wrote:
> I just noticed that I lost my text-console. Don't know if this is the patched 
> stifb.c (I cant' check either :-)). 

I don't think so.

> The getty processes are started on tty1  to tty6, but switching to those consoles 
> with "CTRL+ALT+F1-6" only gives a  black screen.

Just tested and this works for me on 8bpp with Artist-gfx on a 715/64.

> After switching system-console to graphics there are no bootmessages, I have 
> to switch back to serial console to see them.
> X-Server still is working fine. 
> 
> Any suggestions?

Do you still boot via serial console or is the cable still connected ? 
If yes, please stop at the IPL and delete the line "console=ttyS0", which is auto-appended by palo if you boot from serial console.

You wrote in another mail:
> The hppa "boot-penguin" looks a little bit psychedlic...

could you describe this more exactly. Does the colors seem exchanged (e.g. red is blue and vice-versa) ?

Helge
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Hi Helge,

> Hi Johannes,
>
> On Friday 29 October 2004 22:28, Johannes Raspe wrote:
> > I just noticed that I lost my text-console. Don't know if this is the
> > patched stifb.c (I cant' check either :-)).
>
> I don't think so.

I had a strang idea about the text-consoles and it was right: The consoles are 
present, but they are black text on black background.
I can type in commands blindly and they are executed, but I don't see them. So 
it seems to be a minor problem with your patch I think. Somehow the colors 
got screwed up in textmode.

> > The getty processes are started on tty1  to tty6, but switching to those
> > consoles with "CTRL+ALT+F1-6" only gives a  black screen.
>
> Just tested and this works for me on 8bpp with Artist-gfx on a 715/64.
>
> > After switching system-console to graphics there are no bootmessages, I
> > have to switch back to serial console to see them.
> > X-Server still is working fine.
> >
> > Any suggestions?
>
> Do you still boot via serial console or is the cable still connected ?
> If yes, please stop at the IPL and delete the line "console=ttyS0", which
> is auto-appended by palo if you boot from serial console.

No, I changed the path to graphics in boot admin.

> You wrote in another mail:
> > The hppa "boot-penguin" looks a little bit psychedlic...
>
> could you describe this more exactly. Does the colors seem exchanged (e.g.
> red is blue and vice-versa) ?

The background of the penguin is green where it should be black. This is the  
obvious change. The rest just looks weird. If it helps I could make a picture 
of it.

> Helge

Regards Johannes

-- 
Johannes Raspe - j.raspe@t-online.de
GnuPG-Key ID: D342E105
Fingerprint: D681 F800 FB2D 913E D14C 1F17 C3DB B1F1 D342 E105



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Subject: Re: Fwd: Re: [parisc-linux] Re: STI crash on B132L with HCRX-24
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Hi Johannes,

could you test the attached patch ?
Until now, we only saved the pseudo_palette with max. 16 entries - maybe for 24/32bpp we need to save 256 entries...

Helge


On Sunday 31 October 2004 10:10, Johannes Raspe wrote:
> Hi Helge,
> 
> > Hi Johannes,
> >
> > On Friday 29 October 2004 22:28, Johannes Raspe wrote:
> > > I just noticed that I lost my text-console. Don't know if this is the
> > > patched stifb.c (I cant' check either :-)).
> >
> > I don't think so.
> 
> I had a strang idea about the text-consoles and it was right: The consoles are 
> present, but they are black text on black background.
> I can type in commands blindly and they are executed, but I don't see them. So 
> it seems to be a minor problem with your patch I think. Somehow the colors 
> got screwed up in textmode.
> 
> > > The getty processes are started on tty1  to tty6, but switching to those
> > > consoles with "CTRL+ALT+F1-6" only gives a  black screen.
> >
> > Just tested and this works for me on 8bpp with Artist-gfx on a 715/64.
> >
> > > After switching system-console to graphics there are no bootmessages, I
> > > have to switch back to serial console to see them.
> > > X-Server still is working fine.
> > >
> > > Any suggestions?
> >
> > Do you still boot via serial console or is the cable still connected ?
> > If yes, please stop at the IPL and delete the line "console=ttyS0", which
> > is auto-appended by palo if you boot from serial console.
> 
> No, I changed the path to graphics in boot admin.
> 
> > You wrote in another mail:
> > > The hppa "boot-penguin" looks a little bit psychedlic...
> >
> > could you describe this more exactly. Does the colors seem exchanged (e.g.
> > red is blue and vice-versa) ?
> 
> The background of the penguin is green where it should be black. This is the  
> obvious change. The rest just looks weird. If it helps I could make a picture 
> of it.
> 
> > Helge
> 
> Regards Johannes

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Index: stifb.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/video/stifb.c,v
retrieving revision 1.11
diff -u -p -r1.11 stifb.c
--- stifb.c	29 Oct 2004 22:59:50 -0000	1.11
+++ stifb.c	31 Oct 2004 12:10:46 -0000
@@ -112,7 +112,7 @@ struct stifb_info {
 	ngle_rom_t ngle_rom;
 	struct sti_struct *sti;
 	int deviceSpecificConfig;
-	u32 pseudo_palette[16];
+	u32 pseudo_palette[256];
 };
 
 static int __initdata bpp = 8;	/* parameter from modprobe */
@@ -1018,6 +1018,16 @@ stifb_setcolreg(u_int regno, u_int red, 
 			 (blue));
 	}
 
+	if (info->var.bits_per_pixel == 32) {
+		((u32 *)(info->pseudo_palette))[regno] =
+			(red   << info->var.red.offset)   |
+			(green << info->var.green.offset) |
+			(blue  << info->var.blue.offset);
+	} else {
+		((u32 *)(info->pseudo_palette))[regno] = regno;
+	}
+
+
 	WRITE_IMAGE_COLOR(fb, regno, color);
 	
 	if (fb->id == S9000_ID_HCRX) {
@@ -1031,14 +1041,6 @@ stifb_setcolreg(u_int regno, u_int red, 
 				/* 0x100 is same as used in WRITE_IMAGE_COLOR() */
 		START_COLORMAPLOAD(fb, lutBltCtl.all);
 		SETUP_FB(fb);
-
-		/* info->var.bits_per_pixel == 32 */
-		if (regno < 16) 
-		  ((u32 *)(info->pseudo_palette))[regno] =
-			(red   << info->var.red.offset)   |
-			(green << info->var.green.offset) |
-			(blue  << info->var.blue.offset);

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Am Sonntag, 31. Oktober 2004 13:12 schrieb Helge Deller:
> Hi Johannes,
>
> could you test the attached patch ?
> Until now, we only saved the pseudo_palette with max. 16 entries - maybe
> for 24/32bpp we need to save 256 entries...
>
> Helge

Hi Helge,

great work! I got my text-consoles back!
For solving the (cosmetical) penguin-color-problem I took a shot with my 
digicam and attached it (sorry for poor quality).

Regards Johannes

-- 
Johannes Raspe - j.raspe@t-online.de
GnuPG-Key ID: D342E105
Fingerprint: D681 F800 FB2D 913E D14C 1F17 C3DB B1F1 D342 E105

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X-Mozilla-Keys:                                                                                 
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From: j.raspe@t-online.de (Johannes Raspe)
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Subject: [parisc-linux] No "#/'" and "<>|" keys with german HIL-keyboard
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Hi all,

after successfully moving to kernel 2.6.x-series with great help from Helge=
=20
Deller I'd like to report a problem wich is also present in 2.4.x-kernels:
with my german HIL-keyboerd on a 735/125 the keys for "#/'" (between left=20
shift-key and the "y"-key) and "<>|" (between Return and the german "=E4"-k=
ey)=20
give absolutely no response to the OS.
I tried "showkey" on a text-console and nothing happens when pressing these=
=20
two keys. Every other key gives an output.

Regards Johannes

=2D-=20
Johannes Raspe - j.raspe@t-online.de
GnuPG-Key ID: D342E105
=46ingerprint: D681 F800 FB2D 913E D14C 1F17 C3DB B1F1 D342 E105
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From: Helge Deller <deller@gmx.de>
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Subject: Penguin color problems on HCRX-24 (was: [parisc-linux] Re: STI crash
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Hi Johannes,

On Sunday 31 October 2004 14:06, Johannes Raspe wrote:
> For solving the (cosmetical) penguin-color-problem I took a shot with my 
> digicam and attached it (sorry for poor quality).

I was hoping my last patch would have fixed this too. Oh well :-)

Right now I don't have any real idea why the penguin colors are wrong.
But I have two assumptions:
a) cfb_imageblit() works wrong in the current tree with 24/32bpp output and 8bpp input on big endian
b) fb_set_logo_truepalette() creates a wrong palette for 24bpp output [but this function seems correct IMHO].

Both of those I'm currently lost without any testing possibility, but I'll continue to look into it.

BTW, does everything else seemscorrect wrt. colors on the text console, e.g. does midnight command shows blue background ?

Regards,
Helge
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Subject: [parisc-linux] BTLBs usable as HUGHTLBs ?
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Maybe a stupid question from someone not knowledgeable of memory-stuff on Linux...

Since HPPA offers Block-TLBs (BTLBs), couldn't those be used comparable/wrapped as so-called HUGHTLBs (CONFIG_HUGETLBFS) as available on i386/ia64 ?

from /proc/cpuinfo on my 715/64:
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (8 combined)		<--- 8
BTLB var-entr.  : 0 instruction, 0 data (0 combined)

Helge
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From: j.raspe@t-online.de (Johannes Raspe)
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Subject: Re: Penguin color problems on HCRX-24 (was: [parisc-linux] Re: STI crash on B132L with HCRX-24)
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Hi Helge,

> > For solving the (cosmetical) penguin-color-problem I took a shot with my
> > digicam and attached it (sorry for poor quality).
>
> I was hoping my last patch would have fixed this too. Oh well :-)
>
> Right now I don't have any real idea why the penguin colors are wrong.
> But I have two assumptions:
> a) cfb_imageblit() works wrong in the current tree with 24/32bpp output and
> 8bpp input on big endian b) fb_set_logo_truepalette() creates a wrong
> palette for 24bpp output [but this function seems correct IMHO].
>
> Both of those I'm currently lost without any testing possibility, but I'll
> continue to look into it.
>
> BTW, does everything else seemscorrect wrt. colors on the text console,
> e.g. does midnight command shows blue background ?

Yes. mc looks normal and a "make menuconfig" shows the right colors too.

> Regards,
> Helge

Regards Johannes

-- 
Johannes Raspe - j.raspe@t-online.de
GnuPG-Key ID: D342E105
Fingerprint: D681 F800 FB2D 913E D14C 1F17 C3DB B1F1 D342 E105



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Hi Johannes,

On Sunday 31 October 2004 14:21, Johannes Raspe wrote:
> after successfully moving to kernel 2.6.x-series with great help from Helge 
> Deller I'd like to report a problem wich is also present in 2.4.x-kernels:
> with my german HIL-keyboerd on a 735/125 the keys for "#/'" (between left 
> shift-key and the "y"-key) and "<>|" (between Return and the german ""-key) 
> give absolutely no response to the OS.
> I tried "showkey" on a text-console and nothing happens when pressing these 
> two keys. Every other key gives an output.

please apply the following patch and send me the documented console-output for the corresponding keys.

Helge

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? drivers/input/keyboard/Kconfig.org
? drivers/input/keyboard/Makefile.org
? drivers/input/keyboard/atkbd.c.org
? drivers/input/keyboard/hilkbd.c.org
? drivers/input/keyboard/hpps2atkbd.h.org
Index: drivers/input/keyboard/hil_kbd.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/input/keyboard/hil_kbd.c,v
retrieving revision 1.11
diff -u -p -r1.11 hil_kbd.c
--- drivers/input/keyboard/hil_kbd.c	27 Oct 2004 20:17:18 -0000	1.11
+++ drivers/input/keyboard/hil_kbd.c	31 Oct 2004 14:22:17 -0000
@@ -140,14 +140,18 @@ static void hil_kbd_process_record(struc
 	case HIL_POL_CHARTYPE_NONE:
 		break;
 	case HIL_POL_CHARTYPE_ASCII:
-		while (cnt < idx - 1)
+		while (cnt < idx - 1) {
+			printk("HIL_POL_CHARTYPE_ASCII: %d\n", kbd->data[cnt]);
 			input_report_key(dev, kbd->data[cnt++] & 0x7f, 1);
+		}
 		break;
 	case HIL_POL_CHARTYPE_RSVD1:
 	case HIL_POL_CHARTYPE_RSVD2:
 	case HIL_POL_CHARTYPE_BINARY:
-		while (cnt < idx - 1)
+		while (cnt < idx - 1) {
+			printk("HIL_POL_CHARTYPE_BINARY: %d\n", kbd->data[cnt]);
 			input_report_key(dev, kbd->data[cnt++], 1);
+		}
 		break;
 	case HIL_POL_CHARTYPE_SET1:
 		while (cnt < idx - 1) {
@@ -156,6 +160,7 @@ static void hil_kbd_process_record(struc
 			key = kbd->data[cnt++];
 			up = key & HIL_KBD_SET1_UPBIT;
 			key &= (~HIL_KBD_SET1_UPBIT & 0xff);
+			printk("HIL_POL_CHARTYPE_SET1: %d  up:%d\n", key>>HIL_KBD_SET1_SHIFT, up);
 			key = hil_kbd_set1[key >> HIL_KBD_SET1_SHIFT];
 			if (key != KEY_RESERVED)
 				input_report_key(dev, key, !up);
@@ -168,6 +173,7 @@ static void hil_kbd_process_record(struc
 			key = kbd->data[cnt++];
 			up = key & HIL_KBD_SET2_UPBIT;
 			key &= (~HIL_KBD_SET1_UPBIT & 0xff);
+			printk("HIL_POL_CHARTYPE_SET2: %d  up:%d\n", key>>HIL_KBD_SET2_SHIFT, up);
 			key = key >> HIL_KBD_SET2_SHIFT;
 			if (key != KEY_RESERVED)
 				input_report_key(dev, key, !up);
@@ -180,6 +186,7 @@ static void hil_kbd_process_record(struc
 			key = kbd->data[cnt++];
 			up = key & HIL_KBD_SET3_UPBIT;
 			key &= (~HIL_KBD_SET1_UPBIT & 0xff);
+			printk("HIL_POL_CHARTYPE_SET3: %d  up:%d\n", key>>HIL_KBD_SET3_SHIFT, up);
 			key = hil_kbd_set3[key >> HIL_KBD_SET3_SHIFT];
 			if (key != KEY_RESERVED)
 				input_report_key(dev, key, !up);

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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] BTLBs usable as HUGHTLBs ?
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On Sun, Oct 31, 2004 at 03:04:30PM +0100, Helge Deller wrote:
> Since HPPA offers Block-TLBs (BTLBs), couldn't those be used
> comparable/wrapped as so-called HUGHTLBs (CONFIG_HUGETLBFS)
> as available on i386/ia64 ?

I think so. But here is one caveat.
IIRC, PDC calls are required to program the BTLB entries. If that's
correct, then they will be SLOW.  On A500, each PCI Cfg write took
20ms when using PAT PDC vs 4us when using direct access. YMMV depending
on platform and how PDC is stored/loaded on that platform. My advice
is to measure some simple PDC call by reading cr16  before/after
the call. Then do the math to see if it's worth it.

AFAIK, BTLB was only intended for things like GFX buffers,
kernel data/text, and similarly long lived mappings.
Is HugeTLBFS generally used that way?

> from /proc/cpuinfo on my 715/64:
> BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
> BTLB fix-entr.  : 0 instruction, 0 data (8 combined)		<--- 8

8*64MB == 512MB
That's not as bad as I thought for a PA1.1 machine.
IIRC, first generation BTLB only has 2 entries.

hth,
grant



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From: j.raspe@t-online.de (Johannes Raspe)
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] No "#/'" and "<>|" keys with german HIL-keyboard
Date: Sun, 31 Oct 2004 18:35:53 +0100
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Hi Helge,

glad to hear that you also maintain the HP-HIL stuff!

Am Sonntag, 31. Oktober 2004 15:27 schrieb Helge Deller:
> Hi Johannes,
>
> On Sunday 31 October 2004 14:21, Johannes Raspe wrote:
> > after successfully moving to kernel 2.6.x-series with great help from
> > Helge Deller I'd like to report a problem wich is also present in
> > 2.4.x-kernels: with my german HIL-keyboerd on a 735/125 the keys for
> > "#/'" (between left shift-key and the "y"-key) and "<>|" (between Return
> > and the german "=E4"-key) give absolutely no response to the OS.
> > I tried "showkey" on a text-console and nothing happens when pressing
> > these two keys. Every other key gives an output.
>
> please apply the following patch and send me the documented console-output
> for the corresponding keys.
>
Output for "<"-key:
HIL_POL_CHARTYPE_SET1: 118

Output for "#"-key:
HIL_POL_CHARTYPE_SET1: 116

Johannes
=2D-=20
Johannes Raspe - j.raspe@t-online.de
GnuPG-Key ID: D342E105
=46ingerprint: D681 F800 FB2D 913E D14C 1F17 C3DB B1F1 D342 E105



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Subject: Re: [parisc-linux] No "#/'" and "<>|" keys with german HIL-keyboard
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Hi Johannes,

On Sunday 31 October 2004 18:35, Johannes Raspe wrote:
> > On Sunday 31 October 2004 14:21, Johannes Raspe wrote:
> > > after successfully moving to kernel 2.6.x-series with great help from
> > > Helge Deller I'd like to report a problem wich is also present in
> > > 2.4.x-kernels: with my german HIL-keyboerd on a 735/125 the keys for
> > > "#/'" (between left shift-key and the "y"-key) and "<>|" (between Return
> > > and the german ""-key) give absolutely no response to the OS.
> > > I tried "showkey" on a text-console and nothing happens when pressing
> > > these two keys. Every other key gives an output.
> >
> > please apply the following patch and send me the documented console-output
> > for the corresponding keys.
> >
> Output for "<"-key:
> HIL_POL_CHARTYPE_SET1: 118
> 
> Output for "#"-key:
> HIL_POL_CHARTYPE_SET1: 116

please try the attached patch.
Helge

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Index: include/linux/hil.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/linux/hil.h,v
retrieving revision 1.8
diff -u -p -r1.8 hil.h
--- include/linux/hil.h	27 Jan 2004 22:36:57 -0000	1.8
+++ include/linux/hil.h	31 Oct 2004 18:18:50 -0000
@@ -422,7 +422,7 @@ enum hil_command {
    KEY_J,		KEY_K,		KEY_L,		KEY_SEMICOLON,	\
    KEY_APOSTROPHE,	KEY_ENTER,	KEY_HOME,	KEY_PAGEUP,	\
    KEY_M,		KEY_COMMA,	KEY_DOT,	KEY_SLASH,	\
-   KEY_RESERVED,	KEY_SELECT,	KEY_RESERVED,	KEY_PAGEDOWN,	\
+   KEY_BACKSLASH,	KEY_SELECT,	KEY_102ND,	KEY_PAGEDOWN,	\
    KEY_N,		KEY_SPACE,	KEY_NEXT,	KEY_RESERVED,	\
    KEY_LEFT,		KEY_DOWN,	KEY_UP,		KEY_RIGHT
 

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From: j.raspe@t-online.de (Johannes Raspe)
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Subject: No keyboard repeat (was: [parisc-linux] No "#/'" and "<>|" keys with german HIL-keyboard)
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Hi Helge,

great work! The keys are working fine now. Many thanks for the fast help! J=
ust=20
one other little problem: the keypresses are not repeated (console and X). =
I=20
tried "kbdrate" but this does nothing.
Is this a kernel related or a configuration problem?

Regards Johannes

Am Sonntag, 31. Oktober 2004 19:20 schrieb Helge Deller:
> On Sunday 31 October 2004 18:35, Johannes Raspe wrote:
> > > On Sunday 31 October 2004 14:21, Johannes Raspe wrote:
> > > > after successfully moving to kernel 2.6.x-series with great help fr=
om
> > > > Helge Deller I'd like to report a problem wich is also present in
> > > > 2.4.x-kernels: with my german HIL-keyboerd on a 735/125 the keys for
> > > > "#/'" (between left shift-key and the "y"-key) and "<>|" (between
> > > > Return and the german "=E4"-key) give absolutely no response to the=
 OS.
> > > > I tried "showkey" on a text-console and nothing happens when pressi=
ng
> > > > these two keys. Every other key gives an output.
> > >
> > > please apply the following patch and send me the documented
> > > console-output for the corresponding keys.
> >
> > Output for "<"-key:
> > HIL_POL_CHARTYPE_SET1: 118
> >
> > Output for "#"-key:
> > HIL_POL_CHARTYPE_SET1: 116
>
> please try the attached patch.
> Helge

=2D-=20
Johannes Raspe - j.raspe@t-online.de
GnuPG-Key ID: D342E105
=46ingerprint: D681 F800 FB2D 913E D14C 1F17 C3DB B1F1 D342 E105



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From: "Andy Walker" <ajwalker@broadpark.no>
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Subject: Re: Penguin color problems on HCRX-24
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------=_20041031232019_85082
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Hi all,

Just to report that I'm basically seeing the same things as Johannes with
Helge's patches. I'm still compiling Helge's latest patch and I'll report
back when I've had a chance to test it.

I'd like to submit the patch below to sanitize the stifb=bpp:x:y:z option
handling. The recent patch (by Stuart Brady?) made fb initialization stop
early once the default sti fb was initialized, possibly leaving other fb's
uninitialized. Also the handling of a "global default" bpp was rather
wacky,
and some array index/bounds problems were fixed.

Is initdata guaranteed to be zero'ed? If so then the loop setting all the
elements of stifb_bpp_pref to zero can be dropped. The patch has been
tested with two fb's, switching console fb either by PDC or using the
'sti=' commandline option.

cheers,

-Andy



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From: "Andy Walker" <ajwalker@broadpark.no>
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Subject: Re: Penguin color problems on HCRX-24 (was: [parisc-linux] Re: STI 
     crash on B132L with HCRX-24)
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> Hi Johannes,
>
> On Sunday 31 October 2004 14:06, Johannes Raspe wrote:
>> For solving the (cosmetical) penguin-color-problem I took a shot with my
>> digicam and attached it (sorry for poor quality).
>
> I was hoping my last patch would have fixed this too. Oh well :-)
>
> Right now I don't have any real idea why the penguin colors are wrong.
> But I have two assumptions:
> a) cfb_imageblit() works wrong in the current tree with 24/32bpp output
> and 8bpp input on big endian
> b) fb_set_logo_truepalette() creates a wrong palette for 24bpp output [but
> this function seems correct IMHO].
>
> Both of those I'm currently lost without any testing possibility, but I'll
> continue to look into it.
>
> BTW, does everything else seemscorrect wrt. colors on the text console,
> e.g. does midnight command shows blue background ?
>
> Regards,
> Helge
>

Hi Helge,

Will get the HCRX24 in the post tomorrow or Tuesday.

The good news with your latest patch is that an HCRX24 on fb1 doesn't
boot up bright magenta anymore - it comes up black. When the HCRX24 is
fb0 and I run X11,  the colour palette is correct on exit and the
virtual consoles all have correct colours. Excellent!

I get the black for green psychedelic tux on boot like Johannes.

The big problem with HCR24 in 32bpp is that the X server only uses
three quarters of the screen width - the last quarter remains black.
Screen content in the visible three quarters is horizontally squashed (i.e.
the image that would have filled the whole width is displayed in 3/4)
and there are colour artefacts on edges, fonts etc.

cheers,
-Andy



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On Sunday 31 October 2004 23:20, Andy Walker wrote:
> I'd like to submit the patch below to sanitize the stifb=bpp:x:y:z option
> handling. The recent patch (by Stuart Brady?) made fb initialization stop
> early once the default sti fb was initialized, possibly leaving other fb's
> uninitialized. 

yes - this is a bug.

> Also the handling of a "global default" bpp was rather wacky, 

I liked that idea. No need to initialize all bpps.

> and some array index/bounds problems were fixed. 

Correct.

> Is initdata guaranteed to be zero'ed? If so then the loop setting all the
> elements of stifb_bpp_pref to zero can be dropped. 

Yes, it's guaranteed.

> The patch has been tested with two fb's, switching console fb either by PDC or using the
> 'sti=' commandline option.

Could you please test the attached patch instead. It is based on your patch, but the "global bpp" is still there.

Helge


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Index: drivers/video/stifb.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/video/stifb.c,v
retrieving revision 1.13
diff -u -p -r1.13 stifb.c
--- drivers/video/stifb.c	31 Oct 2004 21:07:55 -0000	1.13
+++ drivers/video/stifb.c	1 Nov 2004 12:40:26 -0000
@@ -1411,21 +1411,27 @@ stifb_init(void)
 	
 	def_sti = sti_get_rom(0);
 	if (def_sti) {
-		for (i = 1; i < MAX_STI_ROMS; i++) {
+		/* initialize default sti before all others */
+		for (i = 1; i <= MAX_STI_ROMS; i++) {
 			sti = sti_get_rom(i);
-			if (sti == def_sti && bpp > 0)
-				stifb_force_bpp[i] = bpp;
+			if (sti != def_sti)
+				continue;
+			if (bpp > 0)
+				stifb_force_bpp[i-1] = bpp;
+			stifb_init_fb(def_sti, stifb_force_bpp[i-1]);
+			break;
 		}
-		stifb_init_fb(def_sti, stifb_force_bpp[i]);
 	}
 
-	for (i = 1; i < MAX_STI_ROMS; i++) {
+	for (i = 1; i <= MAX_STI_ROMS; i++) {
 		sti = sti_get_rom(i);
-		if (!sti || sti==def_sti)
+		if (!sti)
 			break;
+		if (sti == def_sti)
+			continue;
 		if (bpp > 0)
-			stifb_force_bpp[i] = bpp;
-		stifb_init_fb(sti, stifb_force_bpp[i]);
+			stifb_force_bpp[i-1] = bpp;
+		stifb_init_fb(sti, stifb_force_bpp[i-1]);
 	}
 	return 0;
 }

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Subject: Re: Penguin color problems on HCRX-24
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> On Sunday 31 October 2004 23:20, Andy Walker wrote:
>> I'd like to submit the patch below to sanitize the stifb=bpp:x:y:z
>> option
>> handling. The recent patch (by Stuart Brady?) made fb initialization
>> stop
>> early once the default sti fb was initialized, possibly leaving other
>> fb's
>> uninitialized.
>
> yes - this is a bug.
>
>> Also the handling of a "global default" bpp was rather wacky,
>
> I liked that idea. No need to initialize all bpps.
>
>> and some array index/bounds problems were fixed.
>
> Correct.
>
>> Is initdata guaranteed to be zero'ed? If so then the loop setting all
>> the
>> elements of stifb_bpp_pref to zero can be dropped.
>
> Yes, it's guaranteed.
>
>> The patch has been tested with two fb's, switching console fb either by
>> PDC or using the
>> 'sti=' commandline option.
>
> Could you please test the attached patch instead. It is based on your
> patch, but the "global bpp" is still there.
>
> Helge
>

Hi Helge,

The logic is all wrong though IMHO. What it say is:

- If I have specified a bpp for *ANY* fb, then default
  the others to their "capability" - for HCRX24 this is 32.

- If I have not specified any bpp's then default to 8bpp
  on all.

e.g. with a Vis-EG on fb0 and an HCRX24's on fb1 and the commandline:

  stif=bpp:8

fb0 comes up 8bpp and fb1 comes up 32bpp, but with no commandline
they both come up 8bpp. That's weird.

My change made the logic:

- Default all fb's to their "capability", except where the
  user says otherwise for a given fb (you can default an fb
  by setting 0 e.g. stifb=bpp=0:8).

By "capability" I mean the default value in sti_init_fb.

I can live with either solution though, as long as the code
works as advertised :-)

-Andy



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Subject: [parisc-linux] Re: Penguin color problems on HCRX-24
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On Monday 01 November 2004 15:03, Andy Walker wrote:
> Hi Helge,
> 
> The logic is all wrong though IMHO. What it say is:
> 
> - If I have specified a bpp for *ANY* fb, then default
>   the others to their "capability" - for HCRX24 this is 32.
> 
> - If I have not specified any bpp's then default to 8bpp
>   on all.
> 
> e.g. with a Vis-EG on fb0 and an HCRX24's on fb1 and the commandline:
> 
>   stif=bpp:8
> 
> fb0 comes up 8bpp and fb1 comes up 32bpp, but with no commandline
> they both come up 8bpp. That's weird.
> 
> My change made the logic:
> 
> - Default all fb's to their "capability", except where the
>   user says otherwise for a given fb (you can default an fb
>   by setting 0 e.g. stifb=bpp=0:8).

Ok - please commit your patch, but without this unnecessary part:
+       for (i = 0; i < MAX_STI_ROMS; i++)
+               stifb_bpp_pref[i] = 0;

Rgs,
Helge
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On Sunday 31 October 2004 21:25, Johannes Raspe wrote:
> Just one other little problem: the keypresses are not repeated (console and X). 
> I  tried "kbdrate" but this does nothing.
> Is this a kernel related or a configuration problem?

it was a kernel problem - it's fixed now in CVS HEAD (2.6.10-rc1-pa8).

Helge
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> ---------------------------- Original Message
---------------------------- > Subject: Re: Penguin color problems on
HCRX-24
> From:    "Helge Deller" <deller@gmx.de>
> Date:    Mon, November 1, 2004 6:21 pm
> To:      "Andy Walker" <ajwalker@broadpark.no>
> Cc:      "Johannes Raspe" <j.raspe@t-online.de>
>          parisc-linux@lists.parisc-linux.org
> --------------------------------------------------------------------------
>
> On Monday 01 November 2004 15:03, Andy Walker wrote:
>> Hi Helge,
>>
>> The logic is all wrong though IMHO. What it say is:
>>
>> - If I have specified a bpp for *ANY* fb, then default
>>   the others to their "capability" - for HCRX24 this is 32.
>>
>> - If I have not specified any bpp's then default to 8bpp
>>   on all.
>>
>> e.g. with a Vis-EG on fb0 and an HCRX24's on fb1 and the commandline:
>>
>>   stif=bpp:8
>>
>> fb0 comes up 8bpp and fb1 comes up 32bpp, but with no commandline they
>> both come up 8bpp. That's weird.
>>
>> My change made the logic:
>>
>> - Default all fb's to their "capability", except where the
>>   user says otherwise for a given fb (you can default an fb
>>   by setting 0 e.g. stifb=bpp=0:8).
>
> Ok - please commit your patch, but without this unnecessary part:
> +       for (i = 0; i < MAX_STI_ROMS; i++)
> +               stifb_bpp_pref[i] = 0;
>
> Rgs,
> Helge

Okay, here's the revised patch. Although the diff says its against
rc1-pa5 it should apply cleanly to rc1-pa8 (my rc1-pa5 has Helge's
second HCRX24 patch applied, making it equivalent to rc1-pa8).

Willy (or some other kind soul), can this get submitted please -
it fixes cruft in the previous options patch.

-Andy


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Hi Andy,

On Monday 01 November 2004 23:12, Andy Walker wrote:
> Okay, here's the revised patch. Although the diff says its against
> rc1-pa5 it should apply cleanly to rc1-pa8 (my rc1-pa5 has Helge's
> second HCRX24 patch applied, making it equivalent to rc1-pa8).
> 
> Willy (or some other kind soul), can this get submitted please -
> it fixes cruft in the previous options patch.

Thanks!
I just committed it to CVS and it's now in 2.6.10-rc1-pa9.

Helge
_______________________________________________
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From: "Andy Walker" <ajwalker@broadpark.no>
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Subject: Re: Patch for stifb=bpp:x:y handling
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> Hi Andy,
>
> On Monday 01 November 2004 23:12, Andy Walker wrote:
>> Okay, here's the revised patch. Although the diff says its against
>> rc1-pa5 it should apply cleanly to rc1-pa8 (my rc1-pa5 has Helge's
>> second HCRX24 patch applied, making it equivalent to rc1-pa8).
>>
>> Willy (or some other kind soul), can this get submitted please -
>> it fixes cruft in the previous options patch.
>
> Thanks!
> I just committed it to CVS and it's now in 2.6.10-rc1-pa9.
>
> Helge
>
Thank you! Your HCRX24 went in the post first thing this morning.
Hope it gets there unharmed.

-Andy



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Subject: [parisc-linux] [BUG] 2.6.10-rc1 "INIT: PANIC: segmentation
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Xref: news.gmane.org gmane.linux.ports.parisc:22097

Hi all,
I've fixed the PCI-X config accessor functions and they
now work. But now the box won't boot with NFS root.
Last message repeats itself:
...
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.
INIT: PANIC: segmentation violation! sleeping for 30 seconds.
INIT: PANIC: segmentation violation! sleeping for 30 seconds.
INIT: PANIC: segmentation violation! sleeping for 30 seconds.
...

Can't ssh into the box though I can ping it.
Full console output from "ior" is appended.

BTW, I still have to deal with the "FAILED: lba_fixup_bus()" error
message. It just means resources aren't properly reported for one
PCI bus though the resources happen to already be assigned by firmware
on that particular PCI bus (not others).

thanks,
grant


Firmware Version  44.24

Duplex Console IO Dependent Code (IODC) revision 1
------------------------------------------------------------------------------
   (c) Copyright 1995-2004, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      800  MHz   Active                 Functional         33554432 33554432
      1      800  MHz   Idle                   Functional         33554432 33554432
      2      800  MHz   Idle                   Functional         33554432 33554432
      3      800  MHz   Idle                   Functional         33554432 33554432

  Central Bus Speed (in MHz)  :        200  
  Available Memory            :     524288  KB
  Good Memory Required        : Not initialized. Defaults to 32 MB. 

   Primary boot path:    0/1/1/0.0           
   Alternate boot path:  0/0/2/0.3           
   Console path:         0/7/1/1.0           
   Keyboard path:        0/0/4/0.0           

   *** Manufacturing permissions ON ***
   System is hp server series



---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT|CON|KEY] [<path>]   Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands
     DeBug menu                        Displays debug commands
     MFG menu                          Displays manufacturing commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > bo ls
Main Menu: Enter command or menu > bo lan
Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Boot IO Dependent Code (IODC) revision 3


HARD Booted.
palo ipl 1.5 root@c3k Fri May 14 16:17:38 MDT 2004

Boot image contains:
    0/vmlinux64 6583860 bytes @ 0xa000

Command line for kernel: 'root=/dev/nfs nfsroot=192.168.1.61:/home/tftpboot/ior ip=dhcp console=ttyS1 palo_kernel=0HOME=/'
Selected kernel: HOME=/ from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 64-bit kernelELF64 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 4727168 mediaptr 0x1000
Segment 1 load 00584000 size 602246 mediaptr 0x484000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.10-rc1-pa9 (grundler@gsyprf11.external.hp.com) (gcc version 3.0.4) #66 Tue Nov 2 16:22:24 PST 2004
FP[0] enabled: Rev 1 Model 20
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00008870 00000491 00000000 00000002 3e0505e7352af70f 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 20 rev 4 (0x00000284)
capabilities 0x35
model 9000/800/rp3440  
parisc_cache_init: Only equivalent aliasing supported!
Total Memory: 510 Mb
Built 1 zonelists
Kernel command line: root=/dev/nfs nfsroot=192.168.1.61:/home/tftpboot/ior ip=dhcp console=ttyS1 palo_kernel=0HOME=/
PID hash table entries: 2048 (order: 11, 65536 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
Memory: 522240k available
Mount-cache hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Storm Peak Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x887, 0x00004 }
2. Storm Peak Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x887, 0x00004 }
3. Storm Peak Slow at 0xfffffffffe798000 [152] { 0, 0x0, 0x887, 0x00004 }
4. Storm Peak Slow at 0xfffffffffe799000 [153] { 0, 0x0, 0x887, 0x00004 }
5. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
8. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
9. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
10. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
11. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
12. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
13. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
14. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
Enabling PDC_PAT chassis codes support.
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 129 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 152 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 153 failed with error 1
CPU(s): 1 x PA8800 (Mako) at 800.001500 MHz
Setting cache flush threshold to 21c5480 (1 CPUs online)
SBA found Pluto 2.3 at 0xfffffffffed00000
LBA version TR3.2 (0x32) found at 0xfffffffffed20000
LBA version TR3.2 (0x32) found at 0xfffffffffed22000
LBA version TR3.2 (0x32) found at 0xfffffffffed24000
LBA version TR3.2 (0x32) found at 0xfffffffffed26000
LBA version TR3.2 (0x32) found at 0xfffffffffed28000
LBA version TR3.2 (0x32) found at 0xfffffffffed2c000
LBA version TR3.2 (0x32) found at 0xfffffffffed2e000
FAILED: lba_fixup_bus() request for lmmio_space [fffffffff0000000/fffffffffecffffe]
SCSI subsystem initialized
unwind_init: start = 0x104482a0, end = 0x1046c8a0, entries = 9312
Performance monitoring counters enabled for Storm Peak Slow
Initializing Cryptographic API
Soft power switch support not available.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 17 ports, IRQ sharing enabled
ttyS0 at MMIO 0xfffffffff4051000 (irq = 512) is a 16550A
ttyS1 at MMIO 0xfffffffff4050000 (irq = 512) is a 16550A
ttyS2 at MMIO 0xfffffffff4050010 (irq = 512) is a 16550A
ttyS3 at MMIO 0xfffffffff4050038 (irq = 512) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
tg3.c:v3.11 (October 20, 2004)
eth0: Tigon3 [partno(BCM95700A6) rev 0105 PHY(5701)] (PCI:66MHz:64-bit) 10/100/1000BaseT Ethernet 00:30:6e:4b:13:ad
eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] Split[0] WireSpeed[1] TSOcap[0] 
sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 192
sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18m
elevator: using anticipatory as default io scheduler
  Vendor: HP 73.4G  Model: ST373453LC        Rev: HPC3
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:0:0: tagged command queuing enabled, command queue depth 16.
 target0:0:0: Beginning Domain Validation
sym0:0: wide asynchronous.
sym0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
 target0:0:0: Ending Domain Validation
  Vendor: HP 73.4G  Model: ST373453LC        Rev: HPC3
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:1:0: tagged command queuing enabled, command queue depth 16.
 target0:0:1: Beginning Domain Validation
sym0:1: wide asynchronous.
sym0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
 target0:0:1: Ending Domain Validation
sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 193
sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.1.18m
st: Version 20040403, fixed bufsize 32768, s/g segs 256
SCSI device sda: 143374738 512-byte hdwr sectors (73408 MB)
SCSI device sda: drive cache: write through
 sda: sda1 sda2
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sdb: 143374738 512-byte hdwr sectors (73408 MB)
SCSI device sdb: drive cache: write back
 sdb: sdb1 sdb2 sdb3
Attached scsi disk sdb at scsi0, channel 0, id 1, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 1, lun 0,  type 0
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
NET: Registered protocol family 2
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 32768)
NET: Registered protocol family 1
NET: Registered protocol family 17
Sending DHCP requests .<6>tg3: eth0: Link is up at 1000 Mbps, full duplex.
tg3: eth0: Flow control is off for TX and off for RX.
.., OK
IP-Config: Got DHCP answer from 192.168.1.61, my address is 192.168.1.10
IP-Config: Complete:
      device=eth0, addr=192.168.1.10, mask=255.255.255.0, gw=192.168.1.1,
     host=192.168.1.10, domain=external.hp.com, nis-domain=(none),
     bootserver=192.168.1.61, rootserver=192.168.1.61, rootpath=/home/tftpboot/ior/
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
Looking up port of RPC 100003/2 on 192.168.1.61
Looking up port of RPC 100005/1 on 192.168.1.61
VFS: Mounted root (nfs filesystem) readonly.
Freeing unused kernel memory: 256k freed
INIT: version 2.86 booting
Activating swap.
rm: cannot remove `/dev/shm/root': Not a directory
System time was Wed Nov  3 00:34:51 UTC 2004.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Wed Nov  3 00:34:53 UTC 2004.
Cleaning up ifupdown...done.
Checking all file systems...
fsck 1.35 (28-Feb-2004)
Setting kernel variables ...
... done.
Mounting local filesystems...
Cleaning /tmp /var/run /var/lock.
Running 0dns-down to make sure resolv.conf is ok...done.
Initializing: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces...done.
Starting portmap daemon: portmap.
Starting portmapper...Mounting remote filesystems...
Loading the saved-state of the serial devices... 

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Wed Nov  3 00:34:59 UTC 2004

Initializing random number generator...done.
Recovering nvi editor sessions... done.
Setting up X server socket directory /tmp/.X11-unix...done.
Setting up ICE socket directory /tmp/.ICE-unix...done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting portmap daemon: portmap.
Starting MTA: exim4.
Starting internet superserver: inetd.
Starting OpenBSD Secure Shell server: sshd.
Starting NFS common utilities: statd.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.
INIT: PANIC: segmentation violation! sleeping for 30 seconds.
INIT: PANIC: segmentation violation! sleeping for 30 seconds.
INIT: PANIC: segmentation violation! sleeping for 30 seconds.
INIT: PANIC: segmentation violation! sleeping for 30 seconds.
INIT: PANIC: segmentation violation! sleeping for 30 seconds.
INIT: PANIC: segmentation violation! sleeping for 30 seconds.
INIT: PANIC: segmentation violation! sleeping for 30 seconds.
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Multiple signals?
Date: Fri, 5 Nov 2004 10:28:40 -0800
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Found a problem while debugging gdb.. it looks like we don't correctly
handle multiple pending signals in the kernel?

For example, if a task has both a SIGTRAP and a SIGALRM pending, it
looks like we only deliver the SIGTRAP but not the SIGALRM. Argh...

Does anybody have an ideas how to debug/fix this? i thought it's just a
matter of making intr_do_signal and syscall_do_signal loop back to
recheck the SIGPENDING flags, but that doesn't seem to do it....

Test case:
compile the attached program with
    gcc -g -o sigstep sigstep.c

then do something like:

(gdb) b handler
Breakpoint 1 at 0x10608: file /home/tausq/gdb/gdb-cvs/gdb/testsuite/gdb.base/sigstep.c, line 31.
(gdb) b 66
Breakpoint 2 at 0x106f4: file /home/tausq/gdb/gdb-cvs/gdb/testsuite/gdb.base/sigstep.c, line 66.
(gdb) run
Starting program: /home/tausq/gdb/build-cvs/gdb/testsuite/gdb.base/sigstep

Breakpoint 2, main ()
    at /home/tausq/gdb/gdb-cvs/gdb/testsuite/gdb.base/sigstep.c:66
66            while (!done);
(gdb) step

Breakpoint 2, main ()
    at /home/tausq/gdb/gdb-cvs/gdb/testsuite/gdb.base/sigstep.c:66
66            while (!done);

notice that the printf in the signal handler never gets triggered, and
we never stop at the breakpoint on the signal handler....

i wonder if this might also explain some other "lost signals" problems
others are seeing?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

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/* This testcase is part of GDB, the GNU debugger.

   Copyright 2004 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

*/

#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <sys/time.h>

static volatile int done;

static void
handler (int sig)
{
  printf("in handler\n");
  done = 1;
} /* handler */

struct itimerval itime;
struct sigaction action;

/* The enum is so that GDB can easily see these macro values.  */
enum {
  itimer_real = ITIMER_REAL,
  itimer_virtual = ITIMER_VIRTUAL
} itimer = ITIMER_VIRTUAL;

main ()
{

  /* Set up the signal handler.  */
  memset (&action, 0, sizeof (action));
  action.sa_handler = handler;
  sigaction (SIGVTALRM, &action, NULL);
  sigaction (SIGALRM, &action, NULL);

  /* The values needed for the itimer.  This needs to be at least long
     enough for the setitimer() call to return.  */
  memset (&itime, 0, sizeof (itime));
  itime.it_value.tv_usec = 250 * 1000;

  /* Loop for ever, constantly taking an interrupt.  */
  while (1)
    {
      /* Set up a one-off timer.  A timer, rather than SIGSEGV, is
	 used as after a timer handler finishes the interrupted code
	 can safely resume.  */
      setitimer (itimer, &itime, NULL);
      /* Wait.  */
      while (!done);
      done = 0;
    }
}

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Subject: Re: [parisc-linux] ASSERT() -> BUG_ON() (2/4):
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Grant Grundler wrote:
> no problem with getting rid of ASSERT.
> At this point, I'm more inclined to just delete most of them
> if they can't be replaced with something that's a compile time option.

I've removed all uses of ASSERT this weekend but couldn't test the result.
I couldn't boot the j6k test machine because of an old bug.
SBA code was clobbering the serial console when it called
pci_io_reset_devices(). I figured out some code that I *think* should
do the trick:
	ftp://ftp.parisc-linux.org/patches/diff-2.6.10-rc1-pa10-USB_reset

The ASSERT removal patch (untested) is on:
	ftp://ftp.parisc-linux.org/patches/diff-2.6.10-rc1-pa11-02

Apologies for mixing it all up in one patch.
-pa11-02 patch has some other changes in it that I need to review again.
None of this will be committed until our CVS gets resurrected
and I'll split it up if someone sees that as necessary.


Joel Soete wrote:
> mmm, reading also Matthew's answer, I don't see what kind of sol should
> we adopt to avoid "foo = 0" mistakes?

In general, the compiler will warn and I've re-arranged the code to
be more readable in those cases where no macro is used.

> I have no clue if some macros like:
> #define EQ(a, b) (a) == (b)
> ...
> would help (only one place to check but many macro's as NE, GT, GE, LT,
> LE)?

Well, in the case of macros one just has to be careful or
continue doing what I was doing before.

thanks,
grant

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Subject: [parisc-linux] [BUG] 2.6.8-1-32 Debian kernel panics in harmony
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Stuart/et al ,

I was playing around with the b180 I've setup for a friend
of the family (11 year old kid) and pretty quickly
panic'd the 2.6.8-1-32 debian kernel.

I wanted to reproduce it again with serial console so
I could grab the tombstone but serial console didn't have a
getty and networking wasn't config'd...so I give up for now.
But I think it's easy enough to reproduce...

I played an mp3 with "mpg321 foo.mp3" and then ^C
that after it played for 10-20 seconds. first it gave
noises like it was looping on a garbage buffer.
I restarted the mpg and it played fine again.
Hit ^C again and again got noise.
Repeat playing the same mp3 one more time and then got a kernel panic.
panic was in the harmony interrupt routine and apologize if
that's too vague.

Please remind me tomorrow what other info is needed and
if the tombstone is necessary.

thanks,
grant

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Subject: [parisc-linux] 2.6.10-rc1-pa11 profile data
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Xref: news.gmane.org gmane.linux.ports.parisc:22101

I was comparing "time" output for various flavors of
kernels and arches. We are something like 11m/17m/5m
for real/user/sys on a dual j6700 (dual 750Mhz, running
2.6.10-rc1-pa11-32SMP kernel building a 64-bit kernel
(using gcc 3.0.4). Similar numbers for J6000 (dual 550Mhz)
doing a 32-bit kernel build (gcc 3.3.x): 14m/22m/5m.

While this might look very favorable to a similar full kernel
build on a 1.5Ghz RX2600 which takes about as long (11m/20m/1m), 
the ia64 machine spends less than 1m in the kernel.

I've collect two profiles for -64SMP and will collect
some UP profiles tomorrow. profiles so far are measuring
a full kernel build. I expect I'll do the same for -64UP
kernels too.

What I have so far is on:
	http://www.parisc-linux.org/~grundler/prof-j6700/

d- and i-cache flushing routines are still the top consumers.

hth,
grant
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Subject: Re: [parisc-linux] 2.6.10-rc1-pa11 profile data
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> I've collect two profiles for -64SMP and will collect
> some UP profiles tomorrow. profiles so far are measuring
> a full kernel build. I expect I'll do the same for -64UP
> kernels too.

hmm.. interesting. top consumers are (with idle loop functions removed)

 40646 flush_kernel_icache_page                 406.4600
  7364 fdsync                                   368.2000
 10567 flush_user_dcache_range_asm              293.5278
 10387 flush_user_icache_range_asm              288.5278
 21409 __clear_user_page_asm                    191.1518
  5356 _spin_lock_irqsave                       111.5833
  1768 fisync                                   110.5000
  1928 _spin_lock                                48.2000
  4255 purge_kernel_dcache_page                  42.5500
   339 $lclu_done                                42.3750
  4089 flush_kernel_dcache_page                  40.8900
  5053 copy_user_page_asm                        33.2434
   569 _write_unlock_irq                         17.7812
   422 _spin_unlock                              17.5833
  1567 find_vma_prev                             16.3229
   181 $lslen_loop                               15.0833
    96 $lslen_done                               12.0000
   996 _write_trylock                            11.3182
   137 $lsfu_loop                                 8.5625
   748 flush_user_dcache_page                     7.4800

we really need to do better at cache flushing..... anybody have any
ideas? :)

but looking at the other ones:
- __clear_user_page_asm can be optimized for 64-bit by writing 8 bytes
  at a time instead of 4
- _spin_lock* needs investigation to see if we have some bad locks
  someplace. lockmeter anybody?
- *lclu* can be rewritten to do better than 1-byte at a time
- copy_user_page_asm can be sped up slightly by using pa_memcpy, but not
  much when i tried last time
- *lslen* can also probably be written in a smarter way... 

i suspect some areas for further investigation are:
- can we do tlb_flush_mm() in a smarter way for SMP?
- can we improve kernel entry time for interrupts (and syscalls) by
  being smarter about what we save on the stack? (i.e. only callee-save
  registers and not all the registers?)

volunteers? :)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: Re: [parisc-linux] [BUG] 2.6.8-1-32 Debian kernel panics in harmony
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Cc: Kyle McMartin <kyle@mcmartin.ca>,
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AFAIK, ALSA is _still_ broken ;)

HTH,

T-Bone

Le 11 nov. 04, =E0 17:19, Grant Grundler a =E9crit :

> On Thu, Nov 11, 2004 at 08:48:31AM -0500, Kyle McMartin wrote:
>> On Thu, Nov 11, 2004 at 12:38:50AM -0700, Grant Grundler wrote:
>>> Please remind me tomorrow what other info is needed and
>>> if the tombstone is necessary.
>>>
>>
>> Is this ALSA harmony or OSS harmony? I'll backmerge the diffs to that
>> kernel and rebuild them.
>
> ALSA. But I could use whatever I'm told is better.
>
> thanks,
> grant
>>
>> Cheers,
>> 	Kyle.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>

Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/

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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.6.10-rc1-pa11 profile data
Date: Thu, 11 Nov 2004 12:39:01 -0500
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> - can we improve kernel entry time for interrupts (and syscalls) by
>   being smarter about what we save on the stack? (i.e. only callee-save
>   registers and not all the registers?)
> 
> volunteers? :)

I have been stewing over the following:

Leave the existing syscall save everything code in place.

Create a branch infront of the syscall save everything code that
branches on the value of "enable_fast_syscall"

The variable is set via some mechanism. What's the currently accepted
way? /proc twiddle?

The branched code path contains the fast callee-save only register.

Allow a compile time option to switch kernel syscalls to the 'fast'
function call ABI method for people that know they are installing 
on a recent glibc.

That's much later on my todo list, but because sometimes I get
frustrated with binutils I go to work on other things for a break :)

Cheers,
Carlos.

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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] 2.6.10-rc1-pa11 profile data
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> I have been stewing over the following:
> 
> Leave the existing syscall save everything code in place.
> 
> Create a branch infront of the syscall save everything code that
> branches on the value of "enable_fast_syscall"

eh? nononono. we should *always* be able to only preserve callee-saved
registers. From the application point of view, when they call e.g.
read(), it is a function call. The app should not expect any
caller-saved registers to be preserved across the function/system call.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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On Thu, Nov 11, 2004 at 09:42:58AM -0800, Randolph Chung wrote:
> eh? nononono. we should *always* be able to only preserve callee-saved
> registers. From the application point of view, when they call e.g.
> read(), it is a function call. The app should not expect any
> caller-saved registers to be preserved across the function/system call.

As I'm sure you already know, we do have to be careful to avoid leaking
kernel-internal or another task's information in the registers that
are call-clobbered.  I know some architectures do this by having a
kernel exit path that deliberately clobbers as many registers as possible.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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> As I'm sure you already know, we do have to be careful to avoid leaking
> kernel-internal or another task's information in the registers that
> are call-clobbered.  I know some architectures do this by having a
> kernel exit path that deliberately clobbers as many registers as possible.

sure, we can zero all the call clobbered registers on exit. But not
having to save all of those pesky floating pointer registers and half a
dozen general registers should still be a huge win.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Randolph Chung wrote:
>>I've collect two profiles for -64SMP and will collect
>>some UP profiles tomorrow. profiles so far are measuring
>>a full kernel build. I expect I'll do the same for -64UP
>>kernels too.
> 
> 
> hmm.. interesting. top consumers are (with idle loop functions removed)
> 
>  40646 flush_kernel_icache_page                 406.4600
>   7364 fdsync                                   368.2000
>  10567 flush_user_dcache_range_asm              293.5278
>  10387 flush_user_icache_range_asm              288.5278
mmm (may be another stupid remarks but) I noticed that:
     748 flush_user_dcache_page                     7.4800
    648 flush_user_icache_page                     6.4800
   4255 purge_kernel_dcache_page                  42.5500
  10567 flush_user_dcache_range_asm              293.5278
  10387 flush_user_icache_range_asm              288.5278
  40646 flush_kernel_icache_page                 406.4600
     10 flush_kernel_icache_range_asm              0.0862

i.e. flush_kernel_[di]cache_page is few used versus flush_kernel_[di]cache_range_asm while flush_user_[di]cache_range_asm is more 
used then flush_user_[di]cache_page.

Isn't it strange?

[...]

mmm also:
  49576 machine_restart                          774.6250

??
(I don't understand because stat were cleaned "readprofile -r" before the build)

> 
> we really need to do better at cache flushing..... anybody have any
> ideas? :)
> 
> but looking at the other ones:
> - __clear_user_page_asm can be optimized for 64-bit by writing 8 bytes
>   at a time instead of 4
> - _spin_lock* needs investigation to see if we have some bad locks
>   someplace. lockmeter anybody?
> - *lclu* can be rewritten to do better than 1-byte at a time
> - copy_user_page_asm can be sped up slightly by using pa_memcpy, but not
>   much when i tried last time
> - *lslen* can also probably be written in a smarter way... 
> 
> i suspect some areas for further investigation are:
> - can we do tlb_flush_mm() in a smarter way for SMP?
> - can we improve kernel entry time for interrupts (and syscalls) by
>   being smarter about what we save on the stack? (i.e. only callee-save
>   registers and not all the registers?)
> 
> volunteers? :)
> 
I couldn't realy help more but I will take a look in more details from time to time :)

Thanks,
	Joel
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On Thu, Nov 11, 2004 at 09:59:33AM -0800, Randolph Chung wrote:
> sure, we can zero all the call clobbered registers on exit. But not
> having to save all of those pesky floating pointer registers and half a
> dozen general registers should still be a huge win.

Randolph and I talked about this more privately.
In a nutshell, "huge win" is slightly overstating it and we agree
fixing the cache utilization would be a much bigger win.

Randolph thinks we can save 20 load and stores per interrupt
and potential context switches. The thinking is we are saving/restoring
some registers twice and should split the save/restore between
interrupt/trap and context switch code. So if no context switch is
performed, we only save/restore a subset of the registers manually
and the rest are preserved according to the ABI.
Did I get that right?

thanks,
grant
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> i.e. flush_kernel_[di]cache_page is few used versus 
> flush_kernel_[di]cache_range_asm while flush_user_[di]cache_range_asm is 
> more used then flush_user_[di]cache_page.
> 
> Isn't it strange?

could it be that kernel mappings tend to be bigger and user mappings
tend to be smaller? i'm only guessing here...

> mmm also:
>  49576 machine_restart                          774.6250

this is an artifact of the way the measurements are done. these are
actually calls to cpu_idle().

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: Re: [parisc-linux] 2.6.10-rc1-pa11 profile data
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On Thu, Nov 11, 2004 at 12:54:31AM -0700, Grant Grundler wrote:
> I've collect two profiles for -64SMP and will collect
> some UP profiles tomorrow.

"tomorrow" finally arrived. :^)

> 	http://www.parisc-linux.org/~grundler/prof-j6700/

I've added the 64-bit UP profile numbers as promised.
And some of the top consumers look familiar:
root@gggj6k:~# sort -rnk 3 prof-2.6.10-rc1-pa11-64-01.txt
 40150 flush_kernel_icache_page                 401.5000
  6798 fdsync                                   339.9000
 10645 flush_user_dcache_range_asm              295.6944
 10353 flush_user_icache_range_asm              287.5833
 13871 machine_restart                          216.7344
 20839 __clear_user_page_asm                    186.0625
 10478 cpu_idle                                 145.5278
  1380 fisync                                    86.2500
   365 $lclu_done                                45.6250
  3794 purge_kernel_dcache_page                  37.9400
  3535 flush_kernel_dcache_page                  35.3500
  3279 copy_user_page_asm                        21.5724
  1358 find_get_page                             18.8611
   185 $lslen_loop                               15.4167
  1228 find_vma_prev                             12.7917
   101 $lslen_done                               12.6250
   128 $lsfu_loop                                 8.0000
   162 file_ra_state_init                         6.7500
...


enjoy!
grant
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Subject: [parisc-linux] c110 panic when try to boot 2.6.10-rc1-pa11?
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Xref: news.gmane.org gmane.linux.ports.parisc:22112

hello pa*,

2.6.10-rc1-pa10 works fine on this c110 (as soon as I don't try to use the narrow se crtlr)

unfortunately 2.6.10-rc1-pa11 failled to boot with following message:

SCSI device sda: drive cache: write back
  sda:Backtrace:
  [<10152bd8>] __blk_queue_bounce+0x210/0x290
  [<10244814>] __make_request+0x68/0x508
  [<10245064>] generic_make_request+0x20c/0x2bc
  [<10245180>] submit_bio+0x6c/0x158
  [<1016b710>] submit_bh+0x128/0x1d4
  [<1016a3f8>] block_read_full_page+0x1f8/0x340
  [<101451c0>] read_cache_page+0x90/0x320
  [<1019c374>] read_dev_sector+0x34/0x110
  [<1019cb20>] msdos_partition+0x98/0x5fc
  [<1019bd04>] check_partition+0xd0/0x164
  [<1019c174>] register_disk+0xd0/0x160
  [<10246e58>] add_disk+0x54/0x68
  [<10274764>] sd_probe+0x240/0x39c
  [<1023d87c>] bus_match+0x4c/0x84
  [<1023d9e8>] driver_attach+0x80/0xa8
  [<1023df48>] bus_add_driver+0xb0/0xd8


Kernel Fault: Code=26 regs=109949c0 (Addr=0000000c)
      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 10201000 10152bd8 00000000
r04-07  109a5790 00000200 00000000 00000010
r08-11  10994818 00000000 2fd092f4 1045d810
r12-15  00000000 10000000 1045d810 1045d810
r16-19  1016e9d8 f00000ac f00000a4 10994954
r20-23  10994954 00000000 10991958 10994958
r24-27  00000000 00000010 00000000 1038c010
r28-31  109a2120 10961bd4 109949c0 10146ee4
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10146ed0 10146ed4
  IIR: 0c781099    ISR: 00000000  IOR: 0000000c
  CPU:        0   CR30: 10994000 CR31: 103e4000
  ORIG_R28: 1045a810
  IAOQ[0]: mempool_alloc+0xa0/0x18c
  IAOQ[1]: mempool_alloc+0xa4/0x18c
  RP(r2): __blk_queue_bounce+0x210/0x290
Kernel panic - not syncing: Kernel Fault
  <0>Rebooting in 120 seconds..

Too bad :(

the diff between src trees is very small:
diff -NaurX dontdiff linux-2.6.10-rc1-pa10/Documentation/parisc/00-INDEX linux-2.6.10-rc1-pa11/Documentation/parisc/00-INDEX
--- linux-2.6.10-rc1-pa10/Documentation/parisc/00-INDEX 2004-08-23 10:52:25.000000000 +0200
+++ linux-2.6.10-rc1-pa11/Documentation/parisc/00-INDEX 2004-11-11 17:18:02.000000000 +0100
[snip]
diff -NaurX dontdiff linux-2.6.10-rc1-pa10/Documentation/parisc/todo linux-2.6.10-rc1-pa11/Documentation/parisc/todo
--- linux-2.6.10-rc1-pa10/Documentation/parisc/todo     2004-08-27 19:18:58.000000000 +0200
+++ linux-2.6.10-rc1-pa11/Documentation/parisc/todo     2004-11-11 17:18:02.000000000 +0100
[snip]
diff -NaurX dontdiff linux-2.6.10-rc1-pa10/Makefile linux-2.6.10-rc1-pa11/Makefile
--- linux-2.6.10-rc1-pa10/Makefile      2004-11-06 15:55:05.000000000 +0100
+++ linux-2.6.10-rc1-pa11/Makefile      2004-11-11 17:18:01.000000000 +0100
@@ -1,7 +1,7 @@
  VERSION = 2
  PATCHLEVEL = 6
  SUBLEVEL = 10
-EXTRAVERSION =-rc1-pa10
+EXTRAVERSION =-rc1-pa11
  NAME=Woozy Numbat

  # *DOCUMENTATION*
diff -NaurX dontdiff linux-2.6.10-rc1-pa10/arch/parisc/configs/a500_defconfig linux-2.6.10-rc1-pa11/arch/parisc/configs/a500_defconfig
--- linux-2.6.10-rc1-pa10/arch/parisc/configs/a500_defconfig    2004-08-23 10:52:33.000000000 +0200
+++ linux-2.6.10-rc1-pa11/arch/parisc/configs/a500_defconfig    2004-11-11 17:18:05.000000000 +0100
[snip]
diff -NaurX dontdiff linux-2.6.10-rc1-pa10/arch/parisc/lib/memcpy.c linux-2.6.10-rc1-pa11/arch/parisc/lib/memcpy.c
--- linux-2.6.10-rc1-pa10/arch/parisc/lib/memcpy.c      2004-10-16 18:08:06.000000000 +0200
+++ linux-2.6.10-rc1-pa11/arch/parisc/lib/memcpy.c      2004-11-13 17:15:17.000000000 +0100
@@ -110,8 +110,8 @@
         "\t" EXC_WORD "\t1b\n"                          \
         "\t" EXC_WORD "\t" #_e "\n"                     \
         "\t.previous\n"                                 \
-       : _tt(_t), "+r"(_a)                             \
-       : "1"(_a)                                       \
+       : _tt(_t)                                       \
+       : "r"(_a)                                       \
         : "r8")

  #define def_store_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e)   \
@@ -121,16 +121,16 @@
         "\t" EXC_WORD "\t1b\n"                          \
         "\t" EXC_WORD "\t" #_e "\n"                     \
         "\t.previous\n"                                 \
-       : "+r"(_a)                                      \
-       : _tt(_t), "0"(_a)                              \
+       :                                               \
+       : "r"(_a), _tt(_t)                              \
         : "r8")

  #define ldbma(_s, _a, _t, _e) def_load_ai_insn(ldbs,1,"=r",_s,_a,_t,_e)
  #define stbma(_s, _t, _a, _e) def_store_ai_insn(stbs,1,"r",_s,_a,_t,_e)
  #define ldwma(_s, _a, _t, _e) def_load_ai_insn(ldw,4,"=r",_s,_a,_t,_e)
  #define stwma(_s, _t, _a, _e) def_store_ai_insn(stw,4,"r",_s,_a,_t,_e)
-#define flddma(_s, _a, _t, _e) def_load_ai_insn(fldd,8,"=f",_s,_a,_t,_e)
-#define fstdma(_s, _t, _a, _e) def_store_ai_insn(fstd,8,"f",_s,_a,_t,_e)
+#define flddma(_s, _a, _t, _e) def_load_ai_insn(fldd,8,"=Z",_s,_a,_t,_e)
+#define fstdma(_s, _t, _a, _e) def_store_ai_insn(fstd,8,"Z",_s,_a,_t,_e)

  #define def_load_insn(_insn,_tt,_s,_o,_a,_t,_e)        \
         __asm__ __volatile__ (                          \
@@ -297,7 +297,7 @@
  unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
  {
         register unsigned long src, dst, t1, t2, t3;
-       register char *pcs, *pcd;
+       register unsigned char *pcs, *pcd;
         register unsigned int *pws, *pwd;
         register double *pds, *pdd;
         unsigned long ret = 0;
diff -NaurX dontdiff linux-2.6.10-rc1-pa10/arch/parisc/mm/init.c linux-2.6.10-rc1-pa11/arch/parisc/mm/init.c
--- linux-2.6.10-rc1-pa10/arch/parisc/mm/init.c 2004-10-30 17:37:52.000000000 +0200
+++ linux-2.6.10-rc1-pa11/arch/parisc/mm/init.c 2004-11-13 19:52:50.425203881 +0100
@@ -59,8 +59,6 @@

  static struct resource sysram_resources[MAX_PHYSMEM_RANGES];

-static unsigned long max_pfn;
-
  /* The following array is initialized from the firmware specific
   * information retrieved in kernel/inventory.c.
   */
diff -NaurX dontdiff linux-2.6.10-rc1-pa10/drivers/parisc/sba_iommu.c linux-2.6.10-rc1-pa11/drivers/parisc/sba_iommu.c
--- linux-2.6.10-rc1-pa10/drivers/parisc/sba_iommu.c    2004-11-12 21:42:51.000000000 +0100
+++ linux-2.6.10-rc1-pa11/drivers/parisc/sba_iommu.c    2004-11-11 17:18:13.000000000 +0100
[snip]
=========><=========
(this last one doesn't affect c110)

I first suspected the more complex i.e. memcpy.c and revert it first but it doesn't help :O

OTC reverting the second one (i.e. init.c) help a bit in the way the system boot again but wrongly as you can judge by your self 
with following init errors:

Cleaning up ifupdown...done.
Starting raid devices:
sed: -e expression #1, char 87: unterminated `s' command
sed: -e expression #1, char 15: unterminated `s' command
sed: -e expression #1, char 15: unterminated `s' command
sed: -e expression #1, char 15: unterminated `s' command
sed: -e expression #1, char 15: unterminated `s' command
sed: -e expression #1, char 15: unterminated `s' command
sed: -e expression #1, char 15: unterminated `s' command
done.
Setting up LVM Volume Groups...

[...]
Discovering hardware: discover: ../../lib/device-xml.c:180: create_device: Assertion `vendor_name != ((void *)0)' f.
Running 0dns-down to make sure resolv.conf is ok..awk: cmd. line:1: BEGIN {FS = "." } /resolv\.conf\.bak/ {print $Ntawk: cmd. line:1:
                                                                           ^ unexpected newline or end of string
done.
/dev/shm/network/...Initializing: /etc/network/ifstate.
grep: /etc/network/option: No such file or directory
Setting up IP spoofing protection: rp_filter.
grep: /etc/network/option: No such file or directory
grep: /etc/network/option: No such file or directory
Configuring network interfaces...run-parts: failed to open directory /etc/network/if-pre-up.: No such file or direcy
Disabled Privacy Extensions on device 103ac490(lo)
run-parts: failed to open directory /etc/network/if-up.: No such file or directory
run-parts: failed to open directory /etc/network/if-pre-up.: No such file or directory
eth0: link ok.
run-parts: failed to open directory /etc/network/if-up.: No such file or directory
done.
Usage: /etc/init.d/portmap {start|stop|reload|restart}
Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Sat Nov 13 19:20:14 CET 2004
Usage: /etc/init.d/ntpdate {start|stop|restart|reload|force-reload}
cat: /proc/sys/kernel/random/poolsiz: No such file or directory
Initializing random number generator...cat: /var/lib/urandom/random-see: No such file or directory
urandom start: failed.
done.
[...]
Starting portmap daemon: portmap.
grep: /etc/inetd.con: No such file or directory
Starting MTA: update-exim4.co: invalid option -- l
Terminating...
grep: /etc/inetd.con: No such file or directory
Starting file alteration monitor: FAM.
Starting mouse interface server: gpm.
Starting printer spooler: lpd/sbin/start-stop-daemo: option `--exec' requires an argument
Try `/sbin/start-stop-daemo --help' for more information.
.
Starting printer spooler: lpd/sbin/start-stop-daemo: option `--exec' requires an argument
Try `/sbin/start-stop-daemo --help' for more information.
.
Starting network benchmark server: netserver.
rsync daemon not enabled in /etc/default/rsync
Starting OpenBSD Secure Shell server: sshd.
Starting the system activity data collector: sadc.
Setting up X font server socket directory /tmp/.font-unix...done.
Starting X font server: xfsusage: /usr/bin/X11/xf [-config config_file] [-daemon] [-droppriv] [-ls listen_socket] []
  already running.
Usage: /etc/init.d/xinetd {start|stop|reload|force-reload|restart}
Usage: nfs-common {start|stop|restart}
Usage: /etc/init.d/ntp-server {start|stop|restart|force-reload}
Starting RAID monitor daemon: mdadm -F.
Starting proxy server: squid.
Starting anac(h)ronistic cron: anacron.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.
cat: /etc/X11/default-display-manage: No such file or directory
Not starting GNOME Display Manager (gdm); it is not the default display manager.

I didn't analyse in much detail but eg /etc/X11/default-display-manage exists but it's name seems to be longer:
# ll /etc/X11/default*                                                                                 ls: 
/etc/X11/default-display-manage: No such file or directory

Randolph: any idea?

Thanks in advance for attention,
	Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:22113

James,
I think I found the reason parisc is bouncing buffers on the a500
when it shouldn't (iommu is present):

include/asm/pci.h defines:
#define PCI_DMA_BUS_IS_PHYS     (1)

and drivers/scsi/scsi_lib.c uses it like this:
        if (PCI_DMA_BUS_IS_PHYS && host_dev && host_dev->dma_mask)
                return *host_dev->dma_mask;

Which means anything > ~0U will get bounced.
Sym2 driver uses a 32-bit DMA mask.
And we established this a500 has RAM above :
model 9000/800/A500-6X
Memory Ranges:
 0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 Mb
 1) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 Mb

If someone else can review/test and/or commit, that would be great.
Otherwise I can commit this tomorrow. (Assuming CVS is still alive and well)

Patch below is partially inspired by include/asm-ia64/pci.h.
Though it might be better to define/declare parisc_bus_is_phys
elsewhere if EISA support also eventually needs it.

Ah, almost forgot the good news: a500 is still running multiple
instances of wipe (14 or 15, I forgot). Check riot's console
the morning...

Log Message:
	Fix the PCI_DMA_BUS_IS_PHYS so parisc-linux never bounces buffers
	on systems with an IOMMU.

Signed-of-by: Grant Grundler <grundler@parisc-linux.org>

thanks,
grant


Index: arch/parisc/kernel/setup.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/setup.c,v
retrieving revision 1.9
diff -u -p -r1.9 setup.c
--- arch/parisc/kernel/setup.c	12 Oct 2004 01:07:00 -0000	1.9
+++ arch/parisc/kernel/setup.c	16 Nov 2004 06:08:02 -0000
@@ -53,6 +53,10 @@ struct proc_dir_entry * proc_runway_root
 struct proc_dir_entry * proc_gsc_root = NULL;
 struct proc_dir_entry * proc_mckinley_root = NULL;
 
+#ifndef CONFIG_PA20
+int parisc_bus_is_phys = TRUE;	/* Assume no IOMMU is present */
+EXPORT_SYMBOL(parisc_bus_is_phys);
+#endif
 
 void __init setup_cmdline(char **cmdline_p)
 {
Index: drivers/parisc/ccio-dma.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/ccio-dma.c,v
retrieving revision 1.16
diff -u -p -r1.16 ccio-dma.c
--- drivers/parisc/ccio-dma.c	26 Oct 2004 19:52:46 -0000	1.16
+++ drivers/parisc/ccio-dma.c	16 Nov 2004 06:08:03 -0000
@@ -1560,6 +1560,10 @@ static int ccio_probe(struct parisc_devi
 	parisc_vmerge_boundary = IOVP_SIZE;
 	parisc_vmerge_max_size = BITS_PER_LONG * IOVP_SIZE;
 	ioc_count++;
+
+#ifndef CONFIG_PA20
+	parisc_bus_is_phys = FALSE;
+#endif
 	return 0;
 }
 
Index: drivers/parisc/sba_iommu.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/sba_iommu.c,v
retrieving revision 1.21
diff -u -p -r1.21 sba_iommu.c
--- drivers/parisc/sba_iommu.c	9 Nov 2004 20:28:33 -0000	1.21
+++ drivers/parisc/sba_iommu.c	16 Nov 2004 06:08:03 -0000
@@ -2114,6 +2116,10 @@ sba_driver_callback(struct parisc_device
 	parisc_vmerge_boundary = IOVP_SIZE;
 	parisc_vmerge_max_size = IOVP_SIZE * BITS_PER_LONG;
 
+#ifndef CONFIG_PA20
+	parisc_bus_is_phys = FALSE;
+#endif
+
 	return 0;
 }
 
Index: include/asm-parisc/pci.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pci.h,v
retrieving revision 1.12
diff -u -p -r1.12 pci.h
--- include/asm-parisc/pci.h	3 Nov 2004 00:57:50 -0000	1.12
+++ include/asm-parisc/pci.h	16 Nov 2004 06:08:04 -0000
@@ -106,11 +106,22 @@ static __inline__  int pci_is_lmmio(stru
 struct pci_bus;
 struct pci_dev;
 
-/* The PCI address space does equal the physical memory
- * address space.  The networking and block device layers use
- * this boolean for bounce buffer decisions.
+#ifdef CONFIG_PA20
+/* All PA-2.0 machines have an IOMMU. */
+#define PCI_DMA_BUS_IS_PHYS     (0)
+#else
+/* _some_ PA1.1 boxes have an IOMMU (pa7200)...but we can run these bits on
+ * a PA-2.0 box in narrow mode as well. *sigh* 
+ * FIXME: WAX EISA controller mangles DMA addressing too.
+ */
+
+/* Set to TRUE if PCI address space equals the physical memory address space.
+ * The networking and block device layers use this boolean for bounce buffer
+ * decisions.
  */
-#define PCI_DMA_BUS_IS_PHYS     (1)
+extern unsigned int parisc_bus_is_phys;
+#define PCI_DMA_BUS_IS_PHYS     (parisc_bus_is_phys)
+#endif
 
 /*
 ** Most PCI devices (eg Tulip, NCR720) also export the same registers
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Xref: news.gmane.org gmane.linux.ports.parisc:22114

On Tue, 2004-11-16 at 00:37, Grant Grundler wrote:
> If someone else can review/test and/or commit, that would be great.
> Otherwise I can commit this tomorrow. (Assuming CVS is still alive and well)

It looks fine to me ... I didn't realise this was broken ...

> Patch below is partially inspired by include/asm-ia64/pci.h.
> Though it might be better to define/declare parisc_bus_is_phys
> elsewhere if EISA support also eventually needs it.

Unfortunately, EISA support needs a per bus check for the iommu (since
WAX on some of the machines has its own IOMMU but the rest of the system
doesn't).  I was going to look at introducing this abstraction, but we
never managed to get an unencumbered copy of the WAX specs to get it all
working.

Thanks for debugging this.

James


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On Tue, Nov 16, 2004 at 03:07:48PM +0000, Matthew Wilcox wrote:
> Er, what?  Eh?  sym2 only uses a 32-bit DMA mask if you configure it to.
> And it appears we do tell it to ;-(

yeah...I'm probably responsible for that setting.
It worked the best. :^/
The 39/40 bit or full 64-bit support don't help on parisc-linux anyway.

> All machines include setup.c ... that's fine.

cool

> > +#ifndef CONFIG_PA20
> > +	parisc_bus_is_phys = FALSE;
> > +#endif
>
> Ifdefs suck.  Try this ...
> 
> +	parisc_has_iommu();

Yes - that's a good idea.

> /*
>  * If the PCI device's view of memory is the same as the CPU's view of memory,
>  * PCI_DMA_BUS_IS_PHYS is true.  The networking and block device layers use
>  * this boolean for bounce buffer decisions.
>  */
> #ifdef CONFIG_PA20
> /* All PA-2.0 machines have an IOMMU. */
> #define PCI_DMA_BUS_IS_PHYS	0
> #define parisc_has_iommu()	do { } while (0)
> #else
> #define PCI_DMA_BUS_IS_PHYS	parisc_bus_is_phys
> #define parisc_has_iommu()	do { parisc_bus_is_phys = 1; } while (0)
> #endif

This looks way better to me too.

> I'm tempted to define a couple of new config symbols rather than use
> CONFIG_PA20 -- if PCI_LBA and CCIO are both deselected (eg 712 build),
> we know the answer is 1.

Yes, that's true.

> Equally, if GSC is deselected, this must be
> a pure PCI machine (if it boots ;-) and they all have an IOMMU, though
> I guess you'd always select PA20 for that case.  In any case, I think
> a couple of new symbols are in order.

Hrm....I was trying to avoid new config symbols.
We have three cases where I only saw two before:
1) PA20=y, always have IOMMU (SBA or CCIO _MUST_ be enabled).
2) PA11=y, if SBA=n and CCIO=n, never IOMMU.
3) PA11=y, if SBA=y _or_ CCIO=y, requires runtime check

I think this is straight forward enough to code up in pci.h.

Further:
CCIO depends on GSC
SBA  depends on PCI

ergo Enabling PA20 and GSC but not PCI means CCIO *MUST* be enabled.
ergo Enabling PA20 and PCI but not GSC means SBA  *MUST* be enabled.

Could someone else look at Kconfig files to verify the above two
rules are enforced?

thanks,
grant
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On Tue, Nov 16, 2004 at 09:09:39AM -0700, Grant Grundler wrote:
> yeah...I'm probably responsible for that setting.
> It worked the best. :^/
> The 39/40 bit or full 64-bit support don't help on parisc-linux anyway.

Why not?  40 bits of addressing supports up to 1TB, which exceeds the
highest physical address on any PA machine I know about -- oh, but we
can't bypass the IOMMU, right?

> > Equally, if GSC is deselected, this must be
> > a pure PCI machine (if it boots ;-) and they all have an IOMMU, though
> > I guess you'd always select PA20 for that case.  In any case, I think
> > a couple of new symbols are in order.
> 
> Hrm....I was trying to avoid new config symbols.
> We have three cases where I only saw two before:
> 1) PA20=y, always have IOMMU (SBA or CCIO _MUST_ be enabled).
> 2) PA11=y, if SBA=n and CCIO=n, never IOMMU.
> 3) PA11=y, if SBA=y _or_ CCIO=y, requires runtime check
> 
> I think this is straight forward enough to code up in pci.h.
> 
> Further:
> CCIO depends on GSC
> SBA  depends on PCI
> 
> ergo Enabling PA20 and GSC but not PCI means CCIO *MUST* be enabled.
> ergo Enabling PA20 and PCI but not GSC means SBA  *MUST* be enabled.
> 
> Could someone else look at Kconfig files to verify the above two
> rules are enforced?

Ah, "depends on" doesn't mean what you think it does.  It means "if
GSC isn't selected, CCIO must be N.  if GSC is M, CCIO can be N or M.
if GSC is Y, CCIO can be Y, N or M."  OK, GSC can't be modular (nor can PCI),
but SCSI can, so:

config SCSI_SYM53C8XX_2
        tristate "SYM53C8XX Version 2 SCSI support"
        depends on PCI && SCSI

PCI ->	Y	N
SCSI v
Y	YMN	N
M	MN	N
N	N	N

The values in the table show the permitted values that SCSI_SYM53C8XX_2
can take on.  If there's only one possible answer, it doesn't even ask
the question ;-)  Think of 'depends on' as 'limit to' and it might be more
clear to you.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Tue, Nov 16, 2004 at 04:34:03PM +0000, Matthew Wilcox wrote:
> On Tue, Nov 16, 2004 at 09:09:39AM -0700, Grant Grundler wrote:
> > yeah...I'm probably responsible for that setting.
> > It worked the best. :^/
> > The 39/40 bit or full 64-bit support don't help on parisc-linux anyway.
> 
> Why not?  40 bits of addressing supports up to 1TB, which exceeds the
> highest physical address on any PA machine I know about -- oh, but we
> can't bypass the IOMMU, right?

exactly.

Certainly not for CCIO.
On SBA, someone could try writing DVI mode support but I'm not going to.
I think DVI mode adds more complexity than performance improvement.
But clearly some workloads could benefit. Anything that helps avoid
IO TLB thrashing is a good thing.

On ZX1 (also SBA), I suppose it's possible to fully bypass using
non-coherent support.  But that seems like a step backwards for general use.

...
> > ergo Enabling PA20 and GSC but not PCI means CCIO *MUST* be enabled.
> > ergo Enabling PA20 and PCI but not GSC means SBA  *MUST* be enabled.
> > 
> > Could someone else look at Kconfig files to verify the above two
> > rules are enforced?
> 
> Ah, "depends on" doesn't mean what you think it does.  It means "if
> GSC isn't selected, CCIO must be N.

Oh. You are right...but YKWIM.

> if GSC is M, CCIO can be N or M.
> if GSC is Y, CCIO can be Y, N or M."
...
> The values in the table show the permitted values that SCSI_SYM53C8XX_2
> can take on.  If there's only one possible answer, it doesn't even ask
> the question ;-)  Think of 'depends on' as 'limit to' and it might be more
> clear to you.

*nod*
I'll have to re-read this and the original docs...but I suspected
I didn't fully understand Kconfig anyway.  That's contributing to why
I'm "defering" it. :^)

thanks,
grant
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On Tue, Nov 16, 2004 at 04:34:03PM +0000, Matthew Wilcox wrote:
> > Further:
> > CCIO depends on GSC
> > SBA  depends on PCI
> > 
> > ergo Enabling PA20 and GSC but not PCI means CCIO *MUST* be enabled.
> > ergo Enabling PA20 and PCI but not GSC means SBA  *MUST* be enabled.
> > 
> > Could someone else look at Kconfig files to verify the above two
> > rules are enforced?
> 
> Ah, "depends on" doesn't mean what you think it does.  It means "if
> GSC isn't selected, CCIO must be N.

Actually, in this particular case, this is what I was expecting. 
I didn't understand some of the other subtleties.
ie I'm still now sure how to encode "depends" statements
that involve PA20 and PCI/GSC vis a vis SBA/CCIO support.
Seems like it should be possible though.

thanks,
grant
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On Tue, Nov 16, 2004 at 05:16:22PM -0500, fly wrote:
> Question to PA-RISC help

Brian,
a few things would you can do better when posting for help:
1) Use a real name and not a nick name in your email address.

2) Use a Subject line that is relevant to the parisc-linux mailing list.
 
> I've downloaded all the 1st (bootable disks) from the HP Cupportino and
> other sites  from version 3.0 r0->r3 and although the effects to the monitor
> differ each one shuts off the usb power therefore my keyboard and mouse at
> the same spot. I'm reading something about hacking iso images at the moment
> but that will take time. It does seem like anyone with a machine that only
> can use usb like the c3000 would have run into this problem.

Indeed, they have. I'll remove the ISOs from that site and replace them
with debian-installer images. Folks seemed to be trying those images
on newer machines that don't work with those images.
Please try debian-installer available from:

	http://www.debian.org/devel/debian-installer/

thanks,
grant
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] small hw patch for n4k
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Hello pa*,

Is somebody could ci this small patch for n4k:
--- arch/parisc/kernel/hardware.c.ORIG	2004-06-07 08:18:42.000000000 +020=
0
+++ arch/parisc/kernel/hardware.c	2004-07-23 08:43:59.000000000 +0200
@@ -209,6 +209,7 @@
 	{HPHW_NPROC,0x5D0,0x4,0x81,"Kazoo W+"},
 	{HPHW_NPROC,0x5D1,0x4,0x91,"Forte W+ 2w"},
 	{HPHW_NPROC,0x5D2,0x4,0x91,"Forte W+ 4w"},
+	{HPHW_NPROC,0x5D3,0x0,0x91,"Prelude W+ 540"},
 	{HPHW_NPROC,0x5D3,0x4,0x91,"Prelude W+ 540"},
 	{HPHW_NPROC,0x5D4,0x4,0x91,"Duet W+"},
 	{HPHW_NPROC,0x5D5,0x4,0x91,"Crescendo 550"},
=3D=3D=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D=3D=3D

that help when 
# cat /proc/cpuinfo 
processor	: 0
cpu family	: PA-RISC 2.0
cpu		: PA8600 (PCX-W+)
cpu MHz		: 550.000000
model		: 9000/800/N4000-55
model name	: Unknown machine
hversion	: 0x00005d30
sversion	: 0x00000491
I-cache		: 512 KB
D-cache		: 1024 KB (WB, 0-way associative)
ITLB entries	: 160
DTLB entries	: 160 - shared with ITLB
bogomips	: 1093.63
software id	: 664309341

displayed "Unknown machine" as model name. will better (imo) display:
# cat /proc/cpuinfo 
processor	: 0
cpu family	: PA-RISC 2.0
cpu		: PA8600 (PCX-W+)
cpu MHz		: 550.000000
model		: 9000/800/N4000-55
model name	: Prelude W+ 540
hversion	: 0x00005d30
sversion	: 0x00000491
I-cache		: 512 KB
D-cache		: 1024 KB (WB, 0-way associative)
ITLB entries	: 160
DTLB entries	: 160 - shared with ITLB
bogomips	: 1093.63
software id	: 664309341

Thanks in advance,
    Joel


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Subject: [parisc-linux] Re: 2.6.10-rc1-pa15 boot fine on n4k but still
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On Thu, Nov 18, 2004 at 01:54:28PM +0100, Joel Soete wrote:
> Nice now the N4k boot well (in the previous attempt it was panic) :)

cool - thanks for testing.

> But there are still many (a beat annoying) backtrace msg:
> Releasing cpu 1 now, hpa=fffffffffed2d000
> FP[1] enabled: Rev 1 Model 16
> CPU(s): 2 x PA8600 (PCX-W+) at 550.000000 MHz
> Setting cache flush threshold to 231280 (2 CPUs online)
> SBA found Ike rev 2 at 0xfffffffffed00000
> Badness in lba_set_iregs at drivers/parisc/lba_pci.c:1659
> Backtrace:
>  [<0000000010196bac>] __alloc_pages+0x124/0x460
>  [<0000000010119fd0>] dump_stack+0x20/0x38
>  [<00000000102cf75c>] lba_set_iregs+0x84/0x180
>  [<00000000102cb254>] setup_ibase_imask+0x9c/0xa8
>  [<000000001010d18c>] __udivdi3+0x1c/0x30
>  [<00000000102cbc44>] sba_ioc_init+0x38c/0x578

Yeah, I think this is just a brainfart in the conversion to "WARN_ON".
Can you test the following patch?

And for grins, add a printk so we can see what ibase/imask
values are getting written.

But in review the code, I'm leary that bit 0 isn't getting set.
bit 0 is the "Range Enable" that enables decoding of upstream
PCI bus addresses. I suspect it works now only becuase we either
never try peer-peer (but we do with sym2 driver IIRC) or the resulting
addresses that are forwarded upstream never get responses.

You have time for one more experiment for me?
Please add  "| 1" to the ibase value passed in
before writing the register. e.g.:
	WRITE_REG32( ibase | 1, base_addr + LBA_IBASE);

If not I'll try this later...

thanks
grant

Index: drivers/parisc/lba_pci.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/lba_pci.c,v
retrieving revision 1.19
diff -u -p -r1.19 lba_pci.c
--- drivers/parisc/lba_pci.c	17 Nov 2004 22:17:42 -0000	1.19
+++ drivers/parisc/lba_pci.c	19 Nov 2004 05:55:35 -0000
@@ -1656,8 +1656,9 @@ lba_set_iregs(struct parisc_device *lba,
 
 	imask <<= 2;	/* adjust for hints - 2 more bits */
 
-	WARN_ON((ibase & 0x003fffff) == 0);
-	WARN_ON((imask & 0x003fffff) == 0);
+	/* Make sure we aren't trying to set bits that aren't writeable. */
+	WARN_ON((ibase & 0x001fffff) != 0);
+	WARN_ON((imask & 0x001fffff) != 0);
 	
 	DBG("%s() ibase 0x%x imask 0x%x\n", __FUNCTION__, ibase, imask);
 	WRITE_REG32( imask, base_addr + LBA_IMASK);
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On Wed, Nov 17, 2004 at 05:35:21PM -0500, fly wrote:
> Grant

Brian,
Please keep the parisc-linux mailing list included in this conversation.
Other people besides me are capable of answering your questions.
And the resolution gets archived. Archives are Good Things(tm).
You might even hunt about a bit in ours (http://lists.parisc-linux.org/).

> Well I'm in installation but it doesn't sense dhcp (I have a linksys router
> to cable).I set a static ip for it but evertime I finish entering the
> numbers (IP,default gateway,subnet mask) it gives me a red screen and says
> I've got incorrect numbers when I go back sure enough it has changed the
> numbers on me-adding or subtracting numbers from what I put in. I'm on the
> fifth try and now its' putting a number in front that I can't even delete or
> backspace over such as 0 in front of where I need to put the 192 of the
> router argh! So close...sound familiar

Yes...like the terminal emulation is broken. Using a vt100 or compatible
terminal emulation program?

>  or did I get the wrong iso here's the
> name I downloaded netinst CD image with debian base, sarge-hppa-netinst.iso,
> address http://www.debian.org/devel/debian-installer/ that is the correct
> one?

Looks like it. Though some folks have pointed out there are still
issues with the debian installer.

>   Sorry for the bother. Is there something I can do more to my network?
> Install something? I would think dhcp broadcasts on a net are pretty obvious
> inside the router. I tried pinging it but nothing. I have the mac address
> but the linksys software doesn't allow, that I see, mac addressing inside
> the router only wan side-pretty stupid really.Any thoughts.

Sorry - no idea.

>  Thanks again,
> Brian
> 
> -----Original Message-----
> From: Grant Grundler [mailto:grundler@parisc-linux.org]
> Sent: Wednesday, November 17, 2004 1:21 PM
> To: fly
> Subject: Re: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 bame
> 
> 
> On Wed, Nov 17, 2004 at 08:41:36AM -0500, fly wrote:
> > But my point was help no usb, oddly I would hardly think of my C3000 as
> new
> 
> It is compared to the A180/B180/A500 machines that Debian Woody
> was targeted for. A500 is the same vintage but doesn't have graphics,
> IDE, USB, or audio built-in.  C3000 needed more work.
> 
> >  but I suppose compared to
> > a 68000 it would be. I had been to the site (sarge) but the size of the
> > iso's and the name threw me I was looking for woody iso's and they were
> the
> > right size. The hardware list also included the b,c3000
> 
> Once the kernel is upgraded, woody can work.
> But sarge works substantially better.
> A C3600 is my desktop at work for the past two years.
> (But TBH, I'm switching to a Zx2000/IA64 machine soon).
> 
> > Is there a users digest or list.
> 
> Yes. parisc-linux list is for parisc kernel discussion mostly.
> debian-hppa mailing list is good for user space issues:
> 	http://www.debian.org/ports/hppa/
> 
> grant
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Subject: [parisc-linux] mini ISO works :^)
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FYI - somebody else can step forward and accept the kudos :^)

----- Forwarded message from fly <bnet@tampabay.rr.com> -----

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To: "Grant Grundler" <grundler@parisc-linux.org>
Subject: RE: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 bame
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Grant
The netinst didn't work but after the second try mini iso did. Mini iso died
the first time pulling down apt from the site butI backed up a step and it
went all the way. Whoever does those scripts is a genius. I've done some
complicated device drivers and programming but whoa...that was amazing. Tell
whomever they impressed me. I wasn't sure so I put the 2.4.27-32 smp kernal
on- I guess that's good. Anywho I'll be playing and leave you alone...for a
while....Thanks Brian.

-----Original Message-----
From: Grant Grundler [mailto:grundler@parisc-linux.org]
Sent: Wednesday, November 17, 2004 1:21 PM
To: fly
Subject: Re: [parisc-linux] RE: [parisc-linux-cvs] linux-2.6 bame


On Wed, Nov 17, 2004 at 08:41:36AM -0500, fly wrote:
> But my point was help no usb, oddly I would hardly think of my C3000 as
new

It is compared to the A180/B180/A500 machines that Debian Woody
was targeted for. A500 is the same vintage but doesn't have graphics,
IDE, USB, or audio built-in.  C3000 needed more work.

>  but I suppose compared to
> a 68000 it would be. I had been to the site (sarge) but the size of the
> iso's and the name threw me I was looking for woody iso's and they were
the
> right size. The hardware list also included the b,c3000

Once the kernel is upgraded, woody can work.
But sarge works substantially better.
A C3600 is my desktop at work for the past two years.
(But TBH, I'm switching to a Zx2000/IA64 machine soon).

> Is there a users digest or list.

Yes. parisc-linux list is for parisc kernel discussion mostly.
debian-hppa mailing list is good for user space issues:
	http://www.debian.org/ports/hppa/

grant

----- End forwarded message -----
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Subject: Re: 2.6.10-rc1-pa16 still panic on c110 [WAS: [parisc-linux] c110
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On Sat, Nov 20, 2004 at 08:37:08PM +0000, Joel Soete wrote:
> > IAOQ[1]: mempool_alloc+0xa4/0x18c
> > RP(r2): __blk_queue_bounce+0x210/0x290

My guess is this is because the default value is wrong...hrm..
but ccio driver should be clearing parisc_bus_is_phys.
Let me commit the pending change i have and then see how it goes.


> and I don't understand why reverting this patch:
> diff -u -r1.15 -r1.16
> --- linux-2.6/arch/parisc/mm/init.c	2004/10/24 05:47:27	1.15
> +++ linux-2.6/arch/parisc/mm/init.c	2004/11/10 19:55:37	1.16
> @@ -59,8 +59,6 @@
> 
>  static struct resource sysram_resources[MAX_PHYSMEM_RANGES];
> 
> -static unsigned long max_pfn;
> -
>  /* The following array is initialized from the firmware specific
>   * information retrieved in kernel/inventory.c.
>   */
> 
> solve the pb.
> 
> That doen't make sence to me as far as I test with success this kernel on 
> b180, b2k (32 and 64 bit) and n4k (smp) without pb
> (btw the same success with my rc2 merge on b2k [32 and 64 bit] and b180 :) )

hrm. We bounce when we think an address is greater than the number
of bits a device can DMA directly to. So either the max_pfn or
the dma_mask is being set wrong.

> Well the c110 is the only model I use with NCR 53C720 & LASI ASIC interface 
> (i.e. NCR 53C710)

Either of these drivers may not be setting the corresponding dma_mask.
I need to check.

grant
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On Sat, Nov 20, 2004 at 10:40:04PM +0000, Joel Soete wrote:
> It seems to also help c110 pb with ncr53c710:
> a big apt-get upgrade + 2 tar in //

I'm guessing the problem is the ncr53c8xx driver does NOT call
dma_set_mask(). PCI devices by default get a 32-bit mask.
I'll commit a patch so that's true for "parisc" (ie GSC) devices
as well. EISA device drivers will need to set an appropriate dma mask.
-pa17 should be ready shortly.

grant
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On Sat, Nov 20, 2004 at 04:42:01PM -0700, Grant Grundler wrote:
> I'm guessing the problem is the ncr53c8xx driver does NOT call
> dma_set_mask(). PCI devices by default get a 32-bit mask.
> I'll commit a patch so that's true for "parisc" (ie GSC) devices
> as well. EISA device drivers will need to set an appropriate dma mask.
> -pa17 should be ready shortly.

EISA devices already get this set:

drivers/eisa/eisa-bus.c:        edev->dma_mask = root->dma_mask; /* Default DMA mask */
drivers/eisa/virtual_root.c:    .dma_mask      = 0xffffffff,

It's purely a parisc_device setup problem.  Nice spotting, Grant.

-- 
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On Sat, Nov 20, 2004 at 05:02:56PM -0700, Grant Grundler wrote:
> Ah good. But don't most EISA devices only support 24-bits?
> Oh wait...maybe that's just an ISA bus limitation that was
> carried along into EISA?

AFAIK, that's purely an ISA card limitation.  If you plug an ISA card into
an EISA slot, it'll only be able to DMA to 24-bit addresses.  But an
ISA card in an EISA slot don't get an eisa_device.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
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to examine any refutations of them; and thus he will by and by convince 
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Xref: news.gmane.org gmane.linux.ports.parisc:22128

On Sun, Nov 21, 2004 at 04:48:03PM +0000, Joel Soete wrote:
> >I expect one more patch for ccio driver if/when someone is willing
> >to figure out one small problem. ccio_dma_supported() *only* supports
> >32-bit devices. CCIO should be able to support any device which supports
> >more bits than are needed to cover IO virtual address space. It should be
> >a fairly small project to compute/locate the IOVA space size and
> >then coding that up for ccio_dma_supported(). I'm happy to review
> >patches and printk output if someone does this.
>
> Sorry, I don't see yet how using structure device to determine the IOVA 
> space size of a dev :(
> and not yet where can I find a list of those dev. May be have you an idea 
> to guide me?

The ccio driver just guesses at a "reasonable" size for total IOVA
space. Ideally it would have something to do with which type of
devices were below it. But this is not the problem I talking about though.

The problem I describe above is what happens *after* the CCIO driver
has decided the size of the IOVA space. ccio_dma_support just need to
know what the IOVA size is so if a device that supports more or less than
32-bits gets the right answer back. Right now, it's hard coded to 32-bits.

grant
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From: "Jurriaan Kalkman" <Jurriaan.Kalkman@zrt.nl>
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Subject: [parisc-linux] what null modem cable to use for B2600?
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Xref: news.gmane.org gmane.linux.ports.parisc:22129

I've recently acquired a B2600 in a garage-sale. The seller was selling
lots of stuff acquired from a company gone broke, and clearly didn't 
know what he had ('But what can you do with this thing?').

It seems in good order, according to the little lcd-screen on the
front
it boots fine, eventually showing a hearbeat.
This screen also informs me the console is SER_1, which I take it is
the
first serial port. A monitor gets a sync signal (about 80 KHz) but no
display. I have no usb keyboard here, so I can't test that.

I know how a serial console should work (plug in the cable, start
minicom
with 9600 8N1 settings, and off you go). Unfortunately, this doesn't
work,
possibly due to my ill luck with rs232 cables. I've got a long history
if not working rs232 cables.

If I look at
http://www.lammertbies.nl/comm/info/nl_RS-232_null_modem.html
(in Dutch, unfortunately for you) I see different types of null-modem
cables.

- no handshaking, 3 wires
- loopback handshaking, 3 wires
- partial handshaking, 7 wires
- full handshaking, 7 wires

What cable would be advisable? I'm really looking forward to getting
linux
running on this thing - it's a lot more acceptable noise-wise than the
old
C200 I used to have, even if it has 4 fans on the front, one on the cpu
and
one in the powersupply.

Thanks,
Jurriaan
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Subject: [parisc-linux] CONFIG_DEBUG_RWLOCK: pb to build a smp 64bit kernel
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Xref: news.gmane.org gmane.linux.ports.parisc:22130

Hello all,

As I mentioned in previous info I try a loop to compile the kernel on a
n4k dual cpu with 4Gb of ram.
And unfortuantely, after a various number of build (20, 120,  24, 5) the
system always do the same kernel_fault() in update_one_process():
This short update to already mentioned that it doesn't help:
Backtrace:
 [<0000000010165810>] update_process_times+0x50/0x90
 [<000000001011594c>] timer_interrupt+0xec/0x308
 [<0000000010116708>] do_irq+0xd8/0x1e8
 [<00000000101168f8>] do_cpu_irq_mask+0xe0/0x150
 [<0000000010107074>] intr_return+0x0/0x24


Kernel Fault: Code=3D26 regs=3D000000007be04d40 (Addr=3D00000000000000d0)=


     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Not tainted
r00-03  0000000000000000 ffffffffffff0a40 00000000101656c4 000000001061f0=
40
r04-07  0000000080806838 0000000000000011 0000000000000000 00000000000000=
00
r08-11  0000000000000001 000000007be04580 0000000000000010 00000000808068=
d8
r12-15  00000000000248c0 0000000000000000 0000000080806950 000000007be044=
10
r16-19  000000007be04580 0000000000000000 0000000000000000 00000000000000=
00
r20-23  0000000004400000 0000000004400000 0000000000000000 00000000000004=
40
r24-27  0000000000000000 0000000000000000 0000000000000440 000000001061f0=
40
r28-31  0000000000000000 0000000000000000 000000007be04d40 000000000000fa=
00
sr0-3   0000000006d1f000 0000000000000000 0000000000000000 0000000006d1f0=
00
sr4-7   0000000000000000 0000000000000000 0000000000000000 00000000000000=
00

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101656cc 0000000010=
1656d0
 IIR: 527401a0    ISR: 0000000000000000  IOR: 00000000000000d0
 CPU:        0   CR30: 000000007be04000 CR31: 00000000105e4000
 ORIG_R28: 0000000010149214
 IAOQ[0]: update_one_process+0x74/0x168
 IAOQ[1]: update_one_process+0x78/0x168
 RP(r2): update_one_process+0x6c/0x168
Kernel panic - not syncing: Kernel Fault

at the same place.

A dump of kernel/timer.o shows:
0000000000000000 <update_one_process>:
   0:   0f c2 12 c1     std rp,-10(,sp)
   4:   37 de 02 00     ldo 100(sp),sp
   8:   73 c4 3e 51     std r4,-d8(sp)
   c:   73 c7 3e 21     std r7,-f0(sp)
  10:   73 c5 3e 41     std r5,-e0(sp)
  14:   73 c3 3e 61     std r3,-d0(sp)
  18:   08 1a 02 44     copy r26,r4
  1c:   08 19 02 47     copy r25,r7
  20:   73 c6 3e 31     std r6,-e8(sp)
  24:   08 1b 02 43     copy dp,r3
  28:   50 93 05 30     ldd 298(r4),r19
  2c:   50 94 05 40     ldd 2a0(r4),r20
  30:   0b 14 0a 34     add,l r20,r24,r20
  34:   08 f3 0a 33     add,l r19,r7,r19
  38:   50 95 0c 40     ldd 620(r4),r21
  3c:   0a 93 0a 25     add,l r19,r20,r5
  40:   70 93 05 30     std r19,298(r4)
  44:   ee a0 20 e0     cmpib,*=3D 0,r21,bc <update_one_process+0xbc>
  48:   70 94 05 40     std r20,2a0(r4)
  4c:   0c 80 10 d3     ldd 0(,r4),r19
  50:   34 14 00 60     ldi 30,r20
  54:   0a 93 02 33     and r19,r20,r19
  58:   ee 60 a0 b8     cmpib,*<> 0,r19,bc <update_one_process+0xbc>
  5c:   08 05 02 5a     copy r5,r26
  60:   34 19 07 d0     ldi 3e8,r25
  64:   e8 00 a0 00     b,l 6c <update_one_process+0x6c>,%r2
  68:   37 dd 3f e1     ldo -10(sp),ret1
  6c:   50 93 0c 40     ldd 620(r4),r19
  70:   08 1c 02 46     copy ret0,r6
  74:   52 74 01 a0     ldd d0(r19),r20
  78:   bc d4 a0 78     cmpb,*>> r20,r6,bc <update_one_process+0xbc>
  7c:   08 03 02 5b     copy r3,dp
  80:   08 05 02 5a     copy r5,r26

that's match the backtrace as r19=3D=3D0

but why?

scaning a bit codehelp me to figure out it should came from:
do_process_times()
    |------> send_sig() ----> return send_sig_info()
                                         |-----> _read_lock()

#define _read_lock(lock)        \
do { \
        preempt_disable(); \
        _raw_read_lock(lock); \
} while(0)

#ifdef CONFIG_DEBUG_RWLOCK
extern void _dbg_read_lock(rwlock_t * rw, const char *bfile, int bline);
#define _raw_read_lock(rw) _dbg_read_lock(rw, __FILE__, __LINE__)
#else
static  __inline__ void _raw_read_lock(rwlock_t *rw)

And so I tried to compile kernel with CONFIG_DEBUG_RWLOCK=3Dy

but unfortuantely it early failed to build:
  hppa64-linux-gcc -Wp,-MD,kernel/.spinlock.o.d -nostdinc -iwithprefix in=
clude
-D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes -Wno-trigraphs -fno-str=
ict-aliasing
-fno-common -O2 -fomit-frame-pointer -pipe -mno-space-regs -mfast-indirec=
t-calls
-ffunction-sections -march=3D2.0 -mschedule=3D8000 -Wdeclaration-after-st=
atement
   -DKBUILD_BASENAME=3Dspinlock -DKBUILD_MODNAME=3Dspinlock -c -o kernel/=
spinlock.o
kernel/spinlock.c
kernel/spinlock.c: In function `_write_trylock':
kernel/spinlock.c:28: void value not ignored as it ought to be
make[1]: *** [kernel/spinlock.o] Error 1
make: *** [kernel] Error 2

The error message seems to be incomplet :(

Knowing that it is still:
  hppa64-linux-gcc -Wp,-MD,kernel/.spinlock.o.d -nostdinc -iwithprefix in=
clude
-D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes -Wno-trigraphs -fno-str=
ict-aliasing
-fno-common -O2 -fomit-frame-pointer -pipe -mno-space-regs -mfast-indirec=
t-calls
-ffunction-sections -march=3D2.0 -mschedule=3D8000 -Wdeclaration-after-st=
atement
   -DKBUILD_BASENAME=3Dspinlock -DKBUILD_MODNAME=3Dspinlock -c -o kernel/=
spinlock.o
kernel/spinlock.c
kernel/spinlock.c: In function `_write_trylock':
kernel/spinlock.c:28: void value not ignored as it ought to be
make[1]: *** [kernel/spinlock.o] Error 1
make: *** [kernel] Error 2

Is it a known bug.
Should I have to upgrade to gcc-3.3 64bit?

Thanks in advance for help,
    Joel


-------------------------------------------------------------------------=
--
Tiscali vous offre 3 mois d'ADSL et 3 mois de DVD gratuits...profitez-en.=
..
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From: James Bottomley <James.Bottomley@SteelEye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] but still panic: [WAS: 2.6.10-rc1-pa15 boot fine
	on n4k but still	annoying bactrace]
Date: 25 Nov 2004 14:39:05 -0600
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On Mon, 2004-11-22 at 08:10, Joel Soete wrote:
> IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001016a7cc 000000001016a7d0
>  IIR: 527401a0    ISR: 0000000000000000  IOR: 00000000000000d0
>  CPU:        0   CR30: 000000004d5a0000 CR31: 00000000105f0000
>  ORIG_R28: 000000001010d18c
>  IAOQ[0]: update_one_process+0x74/0x168
>  IAOQ[1]: update_one_process+0x78/0x168
>  RP(r2): update_one_process+0x6c/0x168

As best I can tell, this is in kernel/timer.c here:

        if (p->signal && !unlikely(p->state & (EXIT_DEAD|EXIT_ZOMBIE))
&&
            psecs / HZ >= p->signal->rlim[RLIMIT_CPU].rlim_cur) {

The problem seems to be that p->signal is null, but it wasn't null when
the processor began the evaluation of the condition.  0xd0 is the 64 bit
offset of rlim[RLIMIT_CPU].rlim_cur.

If you look at the code, p->signal should be in r19 which is zero.

I have no explanation for this (other than some weird race in the signal
handling code somewhere).

James


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> -- Original Message --
> From: James Bottomley <James.Bottomley@SteelEye.com>
> To: Joel Soete <soete.joel@tiscali.be>
> Cc: Grant Grundler <grundler@parisc-linux.org>,
>    PARISC list
> 	 <parisc-linux@lists.parisc-linux.org>
> Date: 25 Nov 2004 14:39:05 -0600
> Subject: Re: [parisc-linux] but still panic: [WAS: 2.6.10-rc1-pa15 boot=

fine
> 	on n4k but still	annoying bactrace]
> 
> 
> On Mon, 2004-11-22 at 08:10, Joel Soete wrote:
> > IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001016a7cc 000000=
001016a7d0
> >  IIR: 527401a0    ISR: 0000000000000000  IOR: 00000000000000d0
> >  CPU:        0   CR30: 000000004d5a0000 CR31: 00000000105f0000
> >  ORIG_R28: 000000001010d18c
> >  IAOQ[0]: update_one_process+0x74/0x168
> >  IAOQ[1]: update_one_process+0x78/0x168
> >  RP(r2): update_one_process+0x6c/0x168
> 
> As best I can tell, this is in kernel/timer.c here:
> 
>         if (p->signal && !unlikely(p->state & (EXIT_DEAD|EXIT_ZOMBIE))
> &&
>             psecs / HZ >=3D p->signal->rlim[RLIMIT_CPU].rlim_cur) {
> 
NIce to point it me out :)

> The problem seems to be that p->signal is null, but it wasn't null when=

> the processor began the evaluation of the condition.  0xd0 is the 64 bi=
t
> offset of rlim[RLIMIT_CPU].rlim_cur.
> 
Cool ;-)

> If you look at the code, p->signal should be in r19 which is zero.
>
I will try to figure thid out.
 
> I have no explanation for this (other than some weird race in the signa=
l
> handling code somewhere).
> 
Yes the hazardous aspect of the pb seems to confirm this hypothesis.
The pb is to find where this race condition occurs; I continue investigat=
ion.

Thanks for help,
    Joel

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Subject: Re: [parisc-linux] 2.6.10-rc1-pa15 panic after 21 kernel build loop
	:-(
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> -- Original Message --
> Date: Thu, 25 Nov 2004 11:18:32 -0700
> From: Grant Grundler <grundler@parisc-linux.org>
> To: Joel Soete <soete.joel@tiscali.be>
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] 2.6.10-rc1-pa15 panic after 21 kernel build=

loop
> :-(
> 
> 
> On Fri, Nov 19, 2004 at 09:15:21AM +0100, Joel Soete wrote:
> > Press Q/q to quit, Enter to continue:
> >  [<000000001016a910>] update_process_times+0x50/0x90
> >  [<00000000101269b8>] smp_do_timer+0x78/0x80
> >  [<000000001011b120>] timer_interrupt+0xd8/0x2f0
> >  [<000000001011bed8>] do_irq+0xd8/0x1e8
> >  [<000000001011c0c8>] do_cpu_irq_mask+0xe0/0x150
> >  [<0000000010107074>] intr_return+0x0/0x24
> 
> FYI, the same stack trace/fault just occurred on gsyprf11 (a500-65).
> 
Yes should occure on smp systems (mmm curious to see if the pb occures al=
so
on a up system runing a smp kernel?)

Thanks for feedback,
     Joel


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Hello,

Since some time have a D370-2 running Debian Linux. Currently the box is only 
used as stove (it's getting cold outside) and I like to give it some usage like 
testing new kenels and such.

Does anyone have a kernel config file for a HP D-series machine which I can use 
as a start point for my kernel configs? Preferably a D370 with 2 CPUs. Or can 
anyone guide which of the basic configs can be used for a start point? (I guess 
the B180 but that does not work out of the box).

Thanks in advance,


CBee

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Subject: Re: flush_kernel_[di]cache_page question? [WAS: [parisc-linux]
	2.6.10-rc1-pa11 profile data
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> I try google on the p-l m-l but I didn't reach to find out why those chain
> of 15 f[di]c,m?

16, actually (including the one in the delay slot of the cmpib).

,m is post increment, so we are just doing an unrolled loop of

fdc offset(address)
offset = offset + cache_stride

randolph
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Subject: flush_kernel_[di]cache_page question? [WAS: [parisc-linux]
	2.6.10-rc1-pa11 profile data
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Hello all,

> 
> hmm.. interesting. top consumers are (with idle loop functions removed)=

> 
>  40646 flush_kernel_icache_page                 406.4600
[...]
>   4089 flush_kernel_dcache_page                  40.8900
[...]
> we really need to do better at cache flushing..... anybody have any
> ideas? :)
> 
Is somebody can help me to understand those:
[...]
flush_kernel_dcache_page:
	.proc
	.callinfo NO_CALLS
	.entry

	ldil    L%dcache_stride,%r1
	ldw     R%dcache_stride(%r1),%r23

#ifdef __LP64__
	depdi,z 1,63-PAGE_SHIFT,1,%r25
#else
	depwi,z 1,31-PAGE_SHIFT,1,%r25
#endif
	add     %r26,%r25,%r25
	sub     %r25,%r23,%r25


1:      fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	fdc,m   %r23(%r26)
	CMPB<<  %r26,%r25,1b
	fdc,m   %r23(%r26)

	sync
	bv      %r0(%r2)
	nop
	.exit

	.procend
	
	.export flush_user_dcache_page

[...]
flush_kernel_icache_page:
	.proc
	.callinfo NO_CALLS
	.entry

	ldil    L%icache_stride,%r1
	ldw     R%icache_stride(%r1),%r23

#ifdef __LP64__
	depdi,z 1,63-PAGE_SHIFT,1,%r25
#else
	depwi,z 1,31-PAGE_SHIFT,1,%r25
#endif
	add     %r26,%r25,%r25
	sub     %r25,%r23,%r25


1:      fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	fic,m   %r23(%r26)
	CMPB<<  %r26,%r25,1b
	fic,m   %r23(%r26)

	sync
	bv      %r0(%r2)
	nop
	.exit

	.procend
[...]

I try google on the p-l m-l but I didn't reach to find out why those chai=
n
of 15 f[di]c,m?

Thanks in advance for your attention,
    Joel


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Subject: Re: [parisc-linux] kernel config file for HP D-series
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On Fri, Nov 26, 2004 at 04:15:07PM +0100, Corn Beerse wrote:
> Does anyone have a kernel config file for a HP D-series machine which I can 
> use as a start point for my kernel configs? Preferably a D370 with 2 CPUs. 
> Or can anyone guide which of the basic configs can be used for a start 
> point? (I guess the B180 but that does not work out of the box).

You can start with just 'make defconfig'.  That should produce a working
kernel.  Options worth tweaking (with menuconfig, or vi, or whatever)
would be:

 - SMP on 
 - PA7000 -> PA8000
 - PCI_LBA off

If you have no HSC-PCI cards, you might want to turn PCI off too.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: flush_kernel_[di]cache_page question? [WAS: [parisc-linux]
	2.6.10-rc1-pa11 profile data
Date: Fri, 26 Nov 2004 12:02:45 -0700
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To: Joel Soete <soete.joel@tiscali.be>
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On Fri, Nov 26, 2004 at 05:59:18PM +0100, Joel Soete wrote:
> >  40646 flush_kernel_icache_page                 406.4600
> [...]
> >   4089 flush_kernel_dcache_page                  40.8900
> [...]
> > we really need to do better at cache flushing..... anybody have any
> > ideas? :)
> >
> Is somebody can help me to understand those:
> [...]
> flush_kernel_dcache_page:

Joel,
the problem is not in the flush_kernel_dcache_page() routine.
The problem is we are calling too often.

grant
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] kernel module relocation bug
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Xref: news.gmane.org gmane.linux.ports.parisc:22139

currently the kernel module loader does not support long branch stubs.
using the debian 2.6.8-1 kernel, when loading the ipv6 module, i see:

legolas[6:43] linux-2.6% sudo modprobe ipv6
FATAL: Error inserting ipv6 (/lib/modules/2.6.8-1-32-smp/kernel/net/ipv6/ipv6.ko): Invalid module format

in syslog, i get:
module ipv6 relocation of symbol fold_prot_inuse is out of range (0x3ffeffe2 in 17 bits)

these are the other modules i have loaded at the moment:

legolas[6:26] linux-2.6% lsmod
Module                  Size  Used by
ehci_hcd               58788  0
ohci_hcd               41924  0
usbcore               121084  2 ehci_hcd,ohci_hcd
tulip                  65468  0
ad1889                 19524  0
soundcore              13828  1 ad1889
ac97_codec             24876  1 ad1889
tg3                   107760  0
ext3                  135588  2
jbd                   103960  1 ext3
sd_mod                 24416  5
sym53c8xx             105004  4

the kernel i have is:
Linux legolas 2.6.8-1-32-smp #1 SMP Tue Nov 2 13:07:05 MST 2004 parisc
GNU/Linux

to fix this we will probably need to introduce long branch stubs into 
into the kernel module loader. anybody want to give this a shot?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] c110: kernel 2.6.10-rc1-pa17 pb to boot if a cdrom
	is in the drive
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Hello all,

I grab a support+ cdrom to test a scsi disk of model "SEAGATE ST34573W" with ode diskutil.

As it didn't detect any disk read error, I want to reboot linux kernel on my c110 but I forget to remove the cdrom from it's drive.
And I got following pb when I reboot linux (kernel 2.6.10-rc1-pa10:
[...]
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
   Vendor: HP        Model: DVD-ROM 6x/32x    Rev: 1.08
   Type:   CD-ROM                             ANSI SCSI revision: 02
  target1:0:0: Beginning Domain Validation
scsi1: (0:0) Asynchronous
scsi1: (0:0) Synchronous at offset 8, period 100ns
  target1:0:0: Echo buffer size 5280 is too big, trimming to 4096
  target1:0:0: Domain Validation detected failure, dropping back
scsi1: (0:0) Synchronous at offset 8, period 152ns
  target1:0:0: Domain Validation detected failure, dropping back
scsi1: (0:0) Synchronous at offset 8, period 252ns
  target1:0:0: Domain Validation detected failure, dropping back
scsi1: (0:0) Synchronous at offset 8, period 400ns
scsi1 (0:0) New error handler wants to abort command
         scsi1 : destination target 0, lun 0
         command = 0x03 00 00 00 60 00
scsi1 (0:0) New error handler wants device reset
         scsi1 : destination target 0, lun 0
         command = 0x03 00 00 00 60 00
scsi1 (0:0) New error handler wants BUS reset, cmd 2fd1ab60
         scsi1 : destination target 0, lun 0
         command = 0x03 00 00 00 60 00
scsi1: Bus Reset detected, executing command 2fd1ab60, slot 2fd70520, dsp 001d8528[0528]
  failing command because of reset, slot 2fd70520, cmnd 2fd1ab60
scsi1 (0:0) broken device is looping in contingent allegiance: ignoring
scsi1 (0:0) New error handler wants to abort command
         scsi1 : destination target 0, lun 0
         command = 0x03 00 00 00 60 00
scsi1 (0:0) New error handler wants device reset
         scsi1 : destination target 0, lun 0
         command = 0x03 00 00 00 60 00
scsi1 (0:0) New error handler wants BUS reset, cmd 2fd1ab60
         scsi1 : destination target 0, lun 0
         command = 0x03 00 00 00 60 00
scsi1: Bus Reset detected, executing command 2fd1ab60, slot 2fd70520, dsp 001d8528[0528]
  failing command because of reset, slot 2fd70520, cmnd 2fd1ab60
scsi1 (0:0) broken device is looping in contingent allegiance: ignoring
scsi1 (0:0) New error handler wants to abort command
         scsi1 : destination target 0, lun 0
         command = 0x03 00 00 00 60 00
scsi1 (0:0) New error handler wants device reset
         scsi1 : destination target 0, lun 0
         command = 0x03 00 00 00 60 00
scsi1 (0:0) New error handler wants BUS reset, cmd 2fd1ab60
         scsi1 : destination target 0, lun 0
         command = 0x03 00 00 00 60 00
scsi1: Bus Reset detected, executing command 2fd1ab60, slot 2fd70520, dsp 001d8528[0528]
  failing command because of reset, slot 2fd70520, cmnd 2fd1ab60
scsi1 (0:0) broken device is looping in contingent allegiance: ignoring
scsi1 (0:0) broken device is looping in contingent allegiance: ignoring
  target1:0:0: Domain Validation detected failure, dropping back
scsi1: (0:0) Synchronous at offset 0, period 0ns
  target1:0:0: Domain Validation detected failure, dropping back
scsi1: (0:0) Asynchronous
  target1:0:0: Domain Validation Failure, dropping back to Asynchronous
  target1:0:0: Ending Domain Validation
   Vendor: SEAGATE   Model: ST34573W          Rev: HP11
   Type:   Direct-Access                      ANSI SCSI revision: 02
  target1:0:3: Beginning Domain Validation

until I remove the cdrom then it continue the boot:
scsi1: (3:0) Asynchronous
scsi1: (3:0) Enabling Tag Command Queuing
scsi1: (3:0) Synchronous at offset 8, period 100ns
  target1:0:3: Domain Validation skipping write tests
  target1:0:3: Ending Domain Validation
...

Any idea?

Thanks in advance,
	Joel
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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [id]cache meaning? [Was: [parisc-linux] 2.6.10-rc1-pa11 profile data]
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Hello all,


Randolph Chung wrote:
>>I've collect two profiles for -64SMP and will collect
>>some UP profiles tomorrow. profiles so far are measuring
>>a full kernel build. I expect I'll do the same for -64UP
>>kernels too.
> 
> 
> hmm.. interesting. top consumers are (with idle loop functions removed)
> 
>  40646 flush_kernel_icache_page                 406.4600
>   7364 fdsync                                   368.2000
>  10567 flush_user_dcache_range_asm              293.5278
>  10387 flush_user_icache_range_asm              288.5278

I have additional question about such functions:

	* in parisc above ..._dcache_... refer well to data cache?
	* and respectively ..._icache_... refer to instruction cache?

Have they different meaning for generic linux?

The confusion came for me from:

include/asm-parisc/cacheflush.h:
[...]
#define flush_icache_page(vma,page)   do { flush_kernel_dcache_page(page_address(page)); 
flush_kernel_icache_page(page_address(page)); } while (0)
[...]

Thanks again,
	Joel

PS: I didn't suspect any error, I am just confused :(


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On Sun, Nov 28, 2004 at 09:01:42PM +0000, Joel Soete wrote:
> I have additional question about such functions:
> 
> 	* in parisc above ..._dcache_... refer well to data cache?
> 	* and respectively ..._icache_... refer to instruction cache?
> 
> Have they different meaning for generic linux?

No, your understanding is correct (see Documentation/cachetlb.txt)

> The confusion came for me from:
> 
> include/asm-parisc/cacheflush.h:
> [...]
> #define flush_icache_page(vma,page)   do { 
> flush_kernel_dcache_page(page_address(page)); 
> flush_kernel_icache_page(page_address(page)); } while (0)
> [...]

I see why this confuses you.  PA-RISC has writeback data caches that
are non-coherent with the instruction cache.  So it's not enough to
just flush the icache; if the page has been modified, we need to force
the data in the dcache back to ram, then remove any existing cache for
instructions in that page.  Then instruction accesses to that page will
fetch the correct data from memory and everything will work.

Many other architectures have writethrough data caches.  They don't need
to flush the dcache.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
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he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Sun November 28 2004 15:13, Matthew Wilcox wrote:
> On Sun, Nov 28, 2004 at 09:01:42PM +0000, Joel Soete wrote:
> > 
> > include/asm-parisc/cacheflush.h:
> > [...]
> > #define flush_icache_page(vma,page)   do { 
> > flush_kernel_dcache_page(page_address(page)); 
> > flush_kernel_icache_page(page_address(page)); } while (0)
> > [...]
> 
> I see why this confuses you.  PA-RISC has writeback data caches that
> are non-coherent with the instruction cache.  So it's not enough to
> just flush the icache; if the page has been modified, we need to force
> the data in the dcache back to ram, then remove any existing cache for
> instructions in that page.  Then instruction accesses to that page will
> fetch the correct data from memory and everything will work.
> 
Matt, Joel,
Here is a, perhaps dumb, question from a non-parisc source...

I note Matt's statement: "...then remove any existing cache for
instructions in that page."

Which sounds very reasonable.

Question:
Is the:
> > flush_kernel_icache_page(page_address(page)); 
(or the hardware that receives the command)

smart enough to just mark the page 'invalid' or is it
actually an 'absolute update external storage'?

I ask because both flush commands are written the
same, BUT...
The first should be an 'absolute update external
storage'.
The second should be either just a 'mark
invalid' or 'conditional update external storage'.

Mike

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On Sun, Nov 28, 2004 at 07:14:14PM -0600, Michael S. Zick wrote:
> Question:
> Is the:
> > > flush_kernel_icache_page(page_address(page)); 
> (or the hardware that receives the command)
> 
> smart enough to just mark the page 'invalid' or is it
> actually an 'absolute update external storage'?

The I-cache is, by definition, read-only, so there's nothing to update
main memory with.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: [parisc-linux] cacheflush: reforamted suggestion
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Hello all,

May I suggest this small patch (just a reformat trying to stay into 80 co=
lumns):
--- cacheflush.h.Orig	2004-11-22 18:00:28.449820293 +0100
+++ cacheflush.h	2004-11-22 18:49:06.925429961 +0100
@@ -10,9 +10,9 @@
 /* Cache flush operations */
 
 #ifdef CONFIG_SMP
-#define flush_cache_mm(mm) flush_cache_all()
+#define flush_cache_mm(mm)		flush_cache_all()
 #else
-#define flush_cache_mm(mm) flush_cache_all_local()
+#define flush_cache_mm(mm)		flush_cache_all_local()
 #endif
 
 #define flush_kernel_dcache_range(start,size) \
@@ -20,18 +20,20 @@
 
 extern void flush_cache_all_local(void);
 
-static inline void cacheflush_h_tmp_function(void *dummy)
+static inline void
+cacheflush_h_tmp_function(void *dummy)
 {
 	flush_cache_all_local();
 }
 
-static inline void flush_cache_all(void)
+static inline void
+flush_cache_all(void)
 {
 	on_each_cpu(cacheflush_h_tmp_function, NULL, 1, 1);
 }
 
-#define flush_cache_vmap(start, end)		flush_cache_all()
-#define flush_cache_vunmap(start, end)		flush_cache_all()
+#define flush_cache_vmap(start, end)	flush_cache_all()
+#define flush_cache_vunmap(start, end)	flush_cache_all()
 
 extern int parisc_cache_flush_threshold;
 void parisc_setup_cache_timing(void);
@@ -56,30 +58,40 @@
 
 extern void flush_dcache_page(struct page *page);
 
-#define flush_dcache_mmap_lock(mapping) \
+#define flush_dcache_mmap_lock(mapping)			\
 	spin_lock_irq(&(mapping)->tree_lock)
-#define flush_dcache_mmap_unlock(mapping) \
+#define flush_dcache_mmap_unlock(mapping)		\
 	spin_unlock_irq(&(mapping)->tree_lock)
 
-#define flush_icache_page(vma,page)	do { flush_kernel_dcache_page(page_a=
ddress(page));
flush_kernel_icache_page(page_address(page)); } while (0)
+#define flush_icache_page(vma,page)				\
+do {								\
+	flush_kernel_dcache_page(page_address(page));		\
+	flush_kernel_icache_page(page_address(page));		\
+} while (0)
 
-#define flush_icache_range(s,e)		do { flush_kernel_dcache_range_asm(s,e)=
;
flush_kernel_icache_range_asm(s,e); } while (0)
+#define flush_icache_range(s,e)					\
+do {								\
+	flush_kernel_dcache_range_asm(s,e);			\
+	flush_kernel_icache_range_asm(s,e);			\
+} while (0)
 
-#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
-do { \
-	flush_cache_page(vma, vaddr); \
-	memcpy(dst, src, len); \
-	flush_kernel_dcache_range_asm((unsigned long)dst, (unsigned long)dst +
len); \
+#define copy_to_user_page(vma, page, vaddr, dst, src, len)	\
+do {								\
+	flush_cache_page(vma, vaddr);				\
+	memcpy(dst, src, len);					\
+	flush_kernel_dcache_range_asm((unsigned long)dst,	\
+				 (unsigned long)dst + len); 	\
 } while (0)
 
-#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
-do { \
-	flush_cache_page(vma, vaddr); \
-	memcpy(dst, src, len); \
+#define copy_from_user_page(vma, page, vaddr, dst, src, len)	\
+do {								\
+	flush_cache_page(vma, vaddr);				\
+	memcpy(dst, src, len);					\
 } while (0)
 
-static inline void flush_cache_range(struct vm_area_struct *vma,
-		unsigned long start, unsigned long end)
+static inline void
+flush_cache_range(struct vm_area_struct *vma, unsigned long start,
+		unsigned long end)
 {
 	int sr3;
 
@@ -99,8 +111,8 @@
 
 /* Simple function to work out if we have an existing address translatio=
n
  * for a user space vma. */
-static inline pte_t *__translation_exists(struct mm_struct *mm,
-					  unsigned long addr)
+static inline pte_t *
+__translation_exists(struct mm_struct *mm, unsigned long addr)
 {
 	pgd_t *pgd =3D pgd_offset(mm, addr);
 	pmd_t *pmd;
@@ -136,7 +148,8 @@
 				  unsigned long vmaddr)
 {
 	/* save the current process space and pgd */
-	unsigned long space =3D mfsp(3), pgd =3D mfctl(25);
+	unsigned long space =3D mfsp(3);
+	unsigned long pgd =3D mfctl(25);
 
 	/* we don't mind taking interrups since they may not
 	 * do anything with user space, but we can't
@@ -178,5 +191,5 @@
 		__flush_cache_page(vma, vmaddr);
 
 }
-#endif
+#endif	/* _PARISC_CACHEFLUSH_H */
=3D=3D=3D=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D=3D=3D=3D

Cheers,
    Joel


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] cacheflush.h: a smp simplification
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Xref: news.gmane.org gmane.linux.ports.parisc:22146

Hello all,

I would also suggested this code simplification:
--- linux-2.6.10-rc2-bk12-pa18M/include/asm-parisc/cacheflush.h.orig1	200=
4-11-29
09:44:46.940675194 +0100
+++ linux-2.6.10-rc2-bk12-pa18M/include/asm-parisc/cacheflush.h	2004-11-2=
9
09:44:05.702579346 +0100
@@ -9,12 +9,6 @@

 /* Cache flush operations */

-#ifdef CONFIG_SMP
-#define flush_cache_mm(mm)		flush_cache_all()
-#else
-#define flush_cache_mm(mm)		flush_cache_all_local()
-#endif
-
 #define flush_kernel_dcache_range(start,size) \
 	flush_kernel_dcache_range_asm((start), (start)+(size));

@@ -32,6 +26,8 @@
 	on_each_cpu(cacheflush_h_tmp_function, NULL, 1, 1);
 }

+#define flush_cache_mm(mm)		flush_cache_all()
+
 #define flush_cache_vmap(start, end)	flush_cache_all()
 #define flush_cache_vunmap(start, end)	flush_cache_all()
=3D=3D=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D=3D=3D=3D

acoording to on_each_cpu() def of linux/smp.h it seems to me ok (but I co=
uld
always missed something?)

Joel

PS: another question realted to cacheflush:
in our cache.c we have:
[...]
#ifdef CONFIG_SMP
void
flush_data_cache(void)
{
	on_each_cpu((void (*)(void *))flush_data_cache_local, NULL, 1, 1);
}
void
flush_instruction_cache(void)
{
	on_each_cpu((void (*)(void *))flush_instruction_cache_local, NULL, 1, 1)=
;
}
#endif

void
flush_cache_all_local(void)
{
	flush_instruction_cache_local();
	flush_data_cache_local();
}
EXPORT_SYMBOL(flush_cache_all_local);

[...]
In the same maner as above suggested couldn't we get rid of #ifdef CONFIG=
_SMP
and #endif
and btw define here
void
flush_cache_all(void)
{
	flush_instruction_cache();
	flush_data_cache();
}
EXPORT_SYMBOL(flush_cache_all);

Or why didn't we define 
flush_cache_all(void)
{
        on_each_cpu((void (*)(void *))flush_cache_all_local, NULL, 1, 1);=

}
as the other functions?

Thanks for additional info ;-)


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Xref: news.gmane.org gmane.linux.ports.parisc:22147

On Sat, 2004-11-27 at 00:47, Randolph Chung wrote:
> currently the kernel module loader does not support long branch stubs.
> using the debian 2.6.8-1 kernel, when loading the ipv6 module, i see:
> 
> legolas[6:43] linux-2.6% sudo modprobe ipv6
> FATAL: Error inserting ipv6 (/lib/modules/2.6.8-1-32-smp/kernel/net/ipv6/ipv6.ko): Invalid module format

This is pretty nasty.  The problem isn't a bad relocation, its that the
relocation target is too far away (i.e. ipv6 is too big).

We get around this in the kernel by using -ffunction-sections so that
the real linker can insert stubs between functions.  However,
calculating how to do that in the in-kernel module loader would not be a
whole lot of fun.

James


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On Sat, 2004-11-27 at 00:47, Randolph Chung wrote:
> currently the kernel module loader does not support long branch stubs.
> using the debian 2.6.8-1 kernel, when loading the ipv6 module, i see:
> 
> legolas[6:43] linux-2.6% sudo modprobe ipv6
> FATAL: Error inserting ipv6 (/lib/modules/2.6.8-1-32-smp/kernel/net/ipv6/ipv6.ko): Invalid module format
> 
> in syslog, i get:
> module ipv6 relocation of symbol fold_prot_inuse is out of range (0x3ffeffe2 in 17 bits)


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Hi,

>> currently the kernel module loader does not support long branch stubs.
>> using the debian 2.6.8-1 kernel, when loading the ipv6 module, i see:
>> 
>> legolas[6:43] linux-2.6% sudo modprobe ipv6
>> FATAL: Error inserting ipv6 (/lib/modules/2.6.8-1-32-smp/kernel/net/ipv6/ipv6.ko): Invalid module format
>
>This is pretty nasty.  The problem isn't a bad relocation, its that the
>relocation target is too far away (i.e. ipv6 is too big).

I've seen this quite often in userspace on hppa-linux, lately while building
TAO (http://www.cs.wustl.edu/~schmidt/TAO.html).

>We get around this in the kernel by using -ffunction-sections so that
>the real linker can insert stubs between functions.  However,
>calculating how to do that in the in-kernel module loader would not be a
>whole lot of fun.

Wouldn't there a way to fix that somewhere else in the toolchain? Or is
there a parisc machine code limitation in the way? I would really get rid of
-ffunction-sections as it seems to generate slower executables. Could
you please explain what needs to be done?

TIA,
Uli
-- 
Dipl. Inf. Ulrich Teichert|e-mail: Ulrich.Teichert@gmx.de
Stormweg 24               |listening to: Suicide Drive (The Deep Eynde)
24539 Neumuenster, Germany|Public Pervert (Interpol) Cl De Contact (Metal Urbain)
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> I've seen this quite often in userspace on hppa-linux, lately while building
> TAO (http://www.cs.wustl.edu/~schmidt/TAO.html).

what error do you see? the one that recommends rebuilding with
-ffunction-sections?

in your application, do you first build some .o's, link them together
into a bigger .o, and then use those to create your final application
image? (otherwise i don't think this problem should occur; if it does
there's a bug somewhere that we should fix).

> Wouldn't there a way to fix that somewhere else in the toolchain? Or is
> there a parisc machine code limitation in the way? I would really get rid of
> -ffunction-sections as it seems to generate slower executables. Could
> you please explain what needs to be done?

we have (or, rather, Dave has) been fixing this in various places. This
problem happens much less frequently now than it used to. Fixes may be
required either in gcc or in the linker to detect when a branch target
is too far away and needs to be converted to a long branch.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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On Mon, 2004-11-29 at 18:23, John David Anglin wrote:
> > On Mon, 2004-11-29 at 18:08, John David Anglin wrote:
> > > With -ffunction-sections, gcc guarantees that calls can reach the
> > > beginning of a function plus some margin for the stub table.  The linker
> > > inserts stubs on a per function basis.  This should work better with
> > > relinking as the functions remain in their own sections.
> > 
> > So what we really need is the equivalent of -ffunction-sections for the
> > linker where, when we combine a bunch of .o's it sees if the branches
> > are getting too far a way and drops a stub in between the function
> > sections (so that the in-kernel linker doesn't have to bother about
> > doing this).
> 
> Then, in the final or in-kernel link, the long branch stubs get
> fixed.

That's the general idea.  Obviously any two pass linker (like the one in
binutils) can place the stubs optimally in between the sections (as long
as the code was compiled with -ffunction-sections) as part of the final
link, but the in-kernel linker is small and simple and I'd rather not
have to introduce it to the concept of multiple passes, so if there were
a flag to get binutils to do the hard work for us it would be much
appreciated.

James


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Hi,

>> I've seen this quite often in userspace on hppa-linux, lately while building
>> TAO (http://www.cs.wustl.edu/~schmidt/TAO.html).
>
>what error do you see? the one that recommends rebuilding with
>-ffunction-sections?

Yes, exactly. While linking a huge C++ executable against dynamic
C++ libraries build with -fPIC.

>in your application, do you first build some .o's, link them together
>into a bigger .o, and then use those to create your final application
>image? (otherwise i don't think this problem should occur; if it does
>there's a bug somewhere that we should fix).
[TAO isn't really *my* application, it's more Douglas C. Schmidt's one,
I'm just a happy user]

Well, the linking of libraries as it's done in TAO is IMHO pretty much
standard:

g++ -D_REENTRANT -DACE_HAS_AIO_CALLS -D_GNU_SOURCE   -I/opt/ACE_wrappers -DACE_HAS_EXCEPTIONS -D__ACE_INLINE__ -DACE_BUILD_DLL -DACE_OS_BUILD_DLL -shared -Wl,-h -Wl,libACE.so.5.4.0 -o libACE.so.5.4.0 .shobj/ARGV.o
...
[countless list of objects]
...
.shobj/NT_Service.o .shobj/UUID.o -Wl,-E -L/opt/ACE_wrappers/ace -L./  -ldl -lpthread -lrt
rm -f libACE.so
ln -s libACE.so.5.4.0 libACE.so
chmod a+rx libACE.so.5.4.0

and all the other libs are created more or less the same way.

>> Wouldn't there a way to fix that somewhere else in the toolchain? Or is
>> there a parisc machine code limitation in the way? I would really get rid of
>> -ffunction-sections as it seems to generate slower executables. Could
>> you please explain what needs to be done?
>
>we have (or, rather, Dave has) been fixing this in various places. This
>problem happens much less frequently now than it used to. Fixes may be
>required either in gcc or in the linker to detect when a branch target
>is too far away and needs to be converted to a long branch.

Ah, then most likely, my toolchain is too old. I'm using debian woody right
now:

GNU ld version 2.12.90.0.1 20020307 Debian/GNU Linux
GNU assembler version 2.12.90.0.1 (hppa-linux) using BFD version 2.12.90.0.1 20020307 Debian/GNU Linux
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.0.4/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-long-long --enable-nls --without-included-gettext --disable-checking --enable-threads=posix --with-cpp-install-dir=bin hppa-linux
Thread model: posix
gcc version 3.0.4

What ld/gas/gcc versions would you recommend? Do I need extra patches?

TIA,
Uli
-- 
Dipl. Inf. Ulrich Teichert|e-mail: Ulrich.Teichert@gmx.de
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24539 Neumuenster, Germany|Public Pervert (Interpol) Cl De Contact (Metal Urbain)
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In reference to a message from John David Anglin, dated Nov 29:
> > to fix this we will probably need to introduce long branch stubs into 
> > into the kernel module loader. anybody want to give this a shot?
> 
> Another option which is probably less work is to build your kernel
> and modules with -mpa-risc-2-0.  This should give you 22-bit branches.

btw, Dave, pls correct me if i'm wrong:
is it correct that the problem only occurs because we are producing a .o
from multiple .o's? inside a single .o gcc should ensure that all
branches can reach the beginning and end of that .o using a 17-bit
relative branches, right?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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> btw, Dave, pls correct me if i'm wrong:
> is it correct that the problem only occurs because we are producing a .o
> from multiple .o's? inside a single .o gcc should ensure that all
> branches can reach the beginning and end of that .o using a 17-bit
> relative branches, right?

If you don't use -ffunction-sections, gcc ensure that branches can reach
the beginning of an individual .o.  All bets are off if you use relinking
to combine .o's.

With -ffunction-sections, gcc guarantees that calls can reach the
beginning of a function plus some margin for the stub table.  The linker
inserts stubs on a per function basis.  This should work better with
relinking as the functions remain in their own sections.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Ah, then most likely, my toolchain is too old. I'm using debian woody =

Yes.

> What ld/gas/gcc versions would you recommend? Do I need extra patches?

Binutils 2.15, gcc 3.3.4.  No.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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On Mon, 2004-11-29 at 18:08, John David Anglin wrote:
> With -ffunction-sections, gcc guarantees that calls can reach the
> beginning of a function plus some margin for the stub table.  The linker
> inserts stubs on a per function basis.  This should work better with
> relinking as the functions remain in their own sections.

So what we really need is the equivalent of -ffunction-sections for the
linker where, when we combine a bunch of .o's it sees if the branches
are getting too far a way and drops a stub in between the function
sections (so that the in-kernel linker doesn't have to bother about
doing this).

James


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> On Mon, 2004-11-29 at 18:08, John David Anglin wrote:
> > With -ffunction-sections, gcc guarantees that calls can reach the
> > beginning of a function plus some margin for the stub table.  The linker
> > inserts stubs on a per function basis.  This should work better with
> > relinking as the functions remain in their own sections.
> 
> So what we really need is the equivalent of -ffunction-sections for the
> linker where, when we combine a bunch of .o's it sees if the branches
> are getting too far a way and drops a stub in between the function
> sections (so that the in-kernel linker doesn't have to bother about
> doing this).

Then, in the final or in-kernel link, the long branch stubs get
fixed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Another option which is probably less work is to build your kernel
> and modules with -mpa-risc-2-0.  This should give you 22-bit branches.

well, except these 32-bit kernel/modules need to work on pa11 systems
too....

> There is also -mlong-calls.  Not too well tested but in theory it
> should always avoid the above problem.  It's much more expensive
> than -mpa-risc-2-0.

mmm.. maybe this is an option for pa11 systems.

randolph
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> to fix this we will probably need to introduce long branch stubs into 
> into the kernel module loader. anybody want to give this a shot?

Another option which is probably less work is to build your kernel
and modules with -mpa-risc-2-0.  This should give you 22-bit branches.

There is also -mlong-calls.  Not too well tested but in theory it
should always avoid the above problem.  It's much more expensive
than -mpa-risc-2-0.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, 30 Nov 2004 15:51:49 -0600 (CST)
rray@tcmail.mstc.state.ms.us wrote:

> Hey all,
> 
> I've just installed Debian on a 9000/819 K200.
> The base install went fine after I changed the console to ttyB0.
> After the reboot I get the dredded "If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at
> parisc-linux.org". And this is the last thing I see.
> I've seen references in the mailing list about switching consoles but
> not what this really means.
> I only have one console connected with a serial cable to the console
> port of the server.
> Could someone give me a little more info.

Read this:
http://www.pateam.org/doc.html


Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/
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Hey all,

I've just installed Debian on a 9000/819 K200.
The base install went fine after I changed the console to ttyB0.
After the reboot I get the dredded "If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org".
And this is the last thing I see.
I've seen references in the mailing list about switching consoles but not
what this really means.
I only have one console connected with a serial cable to the console port
of the server.
Could someone give me a little more info.

Thanks
Richard Ray
_______________________________________________
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Xref: news.gmane.org gmane.linux.ports.parisc:22162

rray@tcmail.mstc.state.ms.us wrote:
> Hey all,
> 
> I've just installed Debian on a 9000/819 K200.
> The base install went fine after I changed the console to ttyB0.
> After the reboot I get the dredded "If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org".
> And this is the last thing I see.
> I've seen references in the mailing list about switching consoles but not
> what this really means.
> I only have one console connected with a serial cable to the console port
> of the server.
> Could someone give me a little more info.

This all depends on the base system (your K200 here) and sometimes additional 
hardware.

I don't know details on your K200 but for example my (now gone) D210 was verry 
basic: just a processor, memory, disk and tape. No additional terminal cards or 
such. This box just continued after a relative long time with the kernel loading 
messages. Your tip: patience...

My (still pressent) D370 has an additional service card with an UPS connector 
and a phone-connector. With this system, I had to plug the console from the 
first to the second serial connector. After removing the board, the console 
stays on the first serial connector. Your tip: remove not necessary boards from 
the system, just to get it going.

I recall from messages on this list that machines with serial consoles on 
expansion boards (boards with multiple serial connectors) do have problems with 
their console since the boards are not that well (read not at all) supported due 
to lack of documentation.

Hence, check the documentation on all pages mentioned at the debian-porting 
page: http://www.debian.org/ports/hppa/


CBee


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Subject: [parisc-linux] trivial patch for CONFIG_DEBUG_RWLOCK: pb to build
	kernel but ...
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Xref: news.gmane.org gmane.linux.ports.parisc:22163

Hello all,
> 

> And so I tried to compile kernel with CONFIG_DEBUG_RWLOCK=3Dy
> 
> but unfortuantely it early failed to build:
>   hppa64-linux-gcc -Wp,-MD,kernel/.spinlock.o.d -nostdinc -iwithprefix
include
> -D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes -Wno-trigraphs -fno-s=
trict-aliasing
> -fno-common -O2 -fomit-frame-pointer -pipe -mno-space-regs -mfast-indir=
ect-calls
> -ffunction-sections -march=3D2.0 -mschedule=3D8000 -Wdeclaration-after-=
statement
>    -DKBUILD_BASENAME=3Dspinlock -DKBUILD_MODNAME=3Dspinlock -c -o kerne=
l/spinlock.o
> kernel/spinlock.c
> kernel/spinlock.c: In function `_write_trylock':
> kernel/spinlock.c:28: void value not ignored as it ought to be
> make[1]: *** [kernel/spinlock.o] Error 1
> make: *** [kernel] Error 2
> 
this trivial patch fix the pb of compilation:
--- include/asm-parisc/spinlock.h.Orig	2004-12-01 11:00:47.428581204 +010=
0
+++ ./include/asm-parisc/spinlock.h	2004-12-01 10:34:58.469054337 +0100
@@ -223,7 +223,7 @@
 }
 
 #ifdef CONFIG_DEBUG_RWLOCK
-extern void _dbg_write_trylock(rwlock_t * rw, const char *bfile, int bli=
ne);
+extern int _dbg_write_trylock(rwlock_t * rw, const char *bfile, int blin=
e);
 #define _raw_write_trylock(rw) _dbg_write_trylock(rw, __FILE__, __LINE__=
)
 #else
 static  __inline__ int _raw_write_trylock(rwlock_t *rw)
=3D=3D=3D=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D=3D=3D=3D

but unfortunately failled to boot:
NET: Registered protocol family 16
write_lock caller: kernel/spinlock.c:211, IRQs enabled,
                                                       kernel BUG at arch=
/parisc/lib/debuglocks.c:171!
Backtrace:
 [<0000000010384ec0>] sock_alloc_inode+0x28/0x90
 [<000000001019ae1c>] check_spinlock_acquired+0x24/0xb8
 [<00000000101146a8>] dump_stack+0x20/0x38
 [<00000000102b4240>] _dbg_write_lock+0x248/0x260
 [<000000001019d20c>] cache_alloc_debugcheck_after+0x16c/0x218
 [<0000000010110a28>] _write_lock_bh+0x38/0x50
 [<00000000103b2a4c>] netlink_table_grab+0x2c/0x150
 [<00000000103b2e0c>] netlink_insert+0x64/0x2d0
 [<0000000010386760>] sock_create_lite+0x30/0x68
 [<00000000103b602c>] netlink_kernel_create+0xcc/0xf8
 [<0000000010111afc>] init+0x28c/0x478
 [<000000001010647c>] ret_from_kernel_thread+0x24/0x38

Kernel panic - not syncing: BUG!

this is comming from:

int _dbg_write_trylock(rwlock_t *rw, const char *bfile, int bline)
{
#if 0
	void *inline_pc =3D __builtin_return_address(0);
	int cpu =3D smp_processor_id();
#endif
	
	if(unlikely(in_interrupt())) {	/* acquiring write lock in interrupt cont=
ext,
bad idea */
		pdc_printf("write_lock caller: %s:%d, IRQs enabled,\n", bfile, bline);
		BUG();
	}

Any idea,
    Joel

-------------------------------------------------------------------------=
--
Tiscali vous offre 3 mois d'ADSL et 3 mois de DVD gratuits...profitez-en.=
..
http://reg.tiscali.be/adsl/default.asp?lg=3DFR




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Xref: news.gmane.org gmane.linux.ports.parisc:22164

Maybe the problem is simple. I hope the solution is.
I used palinux-2.4.21-pa6-20030718-netinst.iso to install.
It uses 2.4.21-32 kernel which I assume has PDC support.
After the base install the kernel I have is 2.4.17-32 which I assume has
no PDC support.
Is there an easy fix for this?

Thanks
Richard Ray

On Wed, 1 Dec 2004, Corn=E9 Beerse wrote:

> rray@tcmail.mstc.state.ms.us wrote:
> > Hey all,
> >
> > I've just installed Debian on a 9000/819 K200.
> > The base install went fine after I changed the console to ttyB0.
> > After the reboot I get the dredded "If this is the last
> > message you see, you may need to switch your console.  This is
> > a common symptom -- search the FAQ and mailing list at parisc-linux.org=
".
> > And this is the last thing I see.
> > I've seen references in the mailing list about switching consoles but n=
ot
> > what this really means.
> > I only have one console connected with a serial cable to the console po=
rt
> > of the server.
> > Could someone give me a little more info.
>
> This all depends on the base system (your K200 here) and sometimes additi=
onal
> hardware.
>
> I don't know details on your K200 but for example my (now gone) D210 was =
verry
> basic: just a processor, memory, disk and tape. No additional terminal ca=
rds or
> such. This box just continued after a relative long time with the kernel =
loading
> messages. Your tip: patience...
>
> My (still pressent) D370 has an additional service card with an UPS conne=
ctor
> and a phone-connector. With this system, I had to plug the console from t=
he
> first to the second serial connector. After removing the board, the conso=
le
> stays on the first serial connector. Your tip: remove not necessary board=
s from
> the system, just to get it going.
>
> I recall from messages on this list that machines with serial consoles on
> expansion boards (boards with multiple serial connectors) do have problem=
s with
> their console since the boards are not that well (read not at all) suppor=
ted due
> to lack of documentation.
>
> Hence, check the documentation on all pages mentioned at the debian-porti=
ng
> page: http://www.debian.org/ports/hppa/
>
>
> CBee
>
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
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> 
> On Wed, Dec 01, 2004 at 06:44:44PM +0100, Joel Soete wrote:
> > I doubt that's enough because I don't yet find how r0 is set?
> 
> r0 is magic on PA.  Writes are discarded, reads return 0.  It's the
> hardware equivalent of /dev/zero ;-)
> 
Cool that make the stuff so ?
And iirc registers are 64bit wide on pa2.0?

Thanks,
    Joel


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Subject: More questions [Was: [parisc-linux] 2.6.10-rc1-pa11 profile data]
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[...]
> 
> but looking at the other ones:
> - __clear_user_page_asm can be optimized for 64-bit by writing 8 bytes
>   at a time instead of 4
Is it the idea (principle only):
--- arch/parisc/kernel/pacache.S.Orig	2004-12-01 17:09:53.000000000 +0100=

+++ arch/parisc/kernel/pacache.S-t1	2004-12-01 17:58:16.000000000 +0100
@@ -505,6 +505,16 @@
 	ldi 64,%r1
 
 1:
+#ifdef __LP64__
+	std	%r0,0(%r28)
+	std	%r0,8(%r28)
+	std	%r0,16(%r28)
+	std	%r0,24(%r28)
+	std	%r0,32(%r28)
+	std	%r0,40(%r28)
+	std	%r0,48(%r28)
+	std	%r0,56(%r28)
+#else
 	stw %r0,0(%r28)
 	stw %r0,4(%r28)
 	stw %r0,8(%r28)
@@ -521,6 +531,7 @@
 	stw %r0,52(%r28)
 	stw %r0,56(%r28)
 	stw %r0,60(%r28)
+#endif
 	ADDIB>  -1,%r1,1b
 	ldo 64(%r28),%r28

I doubt that's enough because I don't yet find how r0 is set?

[...]
Thanks in advance for your attention,
    Joel

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On Wed, Dec 01, 2004 at 06:44:44PM +0100, Joel Soete wrote:
> I doubt that's enough because I don't yet find how r0 is set?

r0 is magic on PA.  Writes are discarded, reads return 0.  It's the
hardware equivalent of /dev/zero ;-)

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I'm getting the same results with 2.6.9 I got from kernel.org.
I left all of the "stock" setting. SOM support is off.
I just intalled Debian on a K200 yesterday. Everythings working except
peripherals.

Thanks
Richard Ray


>> I submit the compile session to the gurus on the list to see what I
>> might be doing wrong... :-)
>
> this is a real bug, but HPUX support is currently not working anyway, so
> if you turn that off, (SOM support) it should build.
>
> randolph
> --
> Randolph Chung
> Debian GNU/Linux Developer, hppa/ia64 ports
> http://www.tausq.org/
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On Thu, Dec 02, 2004 at 08:48:47AM -0600, rray@tcmail.mstc.state.ms.us wrote:
> I'm getting the same results with 2.6.9 I got from kernel.org.

kernel.org is missing patches that parisc needs.
See http://cvs.parisc-linux.org/download/linux-2.6/

> I left all of the "stock" setting. SOM support is off.
> I just intalled Debian on a K200 yesterday. Everythings working except
> peripherals.

For a newer kernel, the above URL provides a debian depot that
one can install *experimental* kernels from.

grant
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Hi,

[del]
>Binutils 2.15, gcc 3.3.4.  No.

Right. Now it builds OK and passes most of the tests. The build finished
about two hours ago (on a B1000 - I don't have enough RAM).
I too have the problem of hanging 'expect' processes - now that I have a
new compiler, I should go for a newer kernel as well, I suppose ;-)

Thanks to all,
Uli
-- 
Dipl. Inf. Ulrich Teichert|e-mail: Ulrich.Teichert@gmx.de
Stormweg 24               |listening to: Suicide Drive (The Deep Eynde)
24539 Neumuenster, Germany|Public Pervert (Interpol) Cl De Contact (Metal Urbain)
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Subject: [parisc-linux] Re: Userland relocation problems resolved (was:
	kernel module relocat
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> I too have the problem of hanging 'expect' processes - now that I have =
> a
> new compiler, I should go for a newer kernel as well, I suppose ;-)

dave@hiauly6:~$ runtest --version
WARNING: Couldn't find the global config file.
Expect version is       5.42.1
Tcl version is          8.3
Framework version is    1.4.4

This is the most reliable configuration that I have found.  Tcl 8.4
is substantially worse.  Expect SEGVs on recent 64-bit SMP kernels in
the GCC testsuite.  I don't see the problem on 32-bit non-SMP kernels.
Sometimes java processes don't terminate although the testsuite
completes.  There is an issue with dejagnu asking tcl to trap SEGVs.
This causes tcl to try to restart expect after a SEGV.  The behavior
of signal is undefined in this situation and may cause the SEGV to
be repeated in an infinite loop.  You can fix this by editing dejagnu.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: More questions [Was: [parisc-linux] 2.6.10-rc1-pa11 profile data]
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Hello all,

I need more advise:

Joel Soete wrote:
> [...]
> 
>>but looking at the other ones:
>>- __clear_user_page_asm can be optimized for 64-bit by writing 8 bytes
>>  at a time instead of 4
> 
> Is it the idea (principle only):
> --- arch/parisc/kernel/pacache.S.Orig	2004-12-01 17:09:53.000000000 +0100
> +++ arch/parisc/kernel/pacache.S-t1	2004-12-01 17:58:16.000000000 +0100
> @@ -505,6 +505,16 @@
>  	ldi 64,%r1
>  
>  1:
> +#ifdef __LP64__
> +	std	%r0,0(%r28)
> +	std	%r0,8(%r28)
> +	std	%r0,16(%r28)
> +	std	%r0,24(%r28)
> +	std	%r0,32(%r28)
> +	std	%r0,40(%r28)
> +	std	%r0,48(%r28)
> +	std	%r0,56(%r28)
> +#else
>  	stw %r0,0(%r28)
>  	stw %r0,4(%r28)
>  	stw %r0,8(%r28)
> @@ -521,6 +531,7 @@
>  	stw %r0,52(%r28)
>  	stw %r0,56(%r28)
>  	stw %r0,60(%r28)
> +#endif
>  	ADDIB>  -1,%r1,1b
>  	ldo 64(%r28),%r28
> 
I test it on my b2k with 64bit kernel and it works but it didn't seems to bring me any benefit?
As far as I can believe readprofile: the ratio between the first and last column is always the same (1/80 in this case).
What did I miss?
My hope was at least a befenit of 1/2 as I reduce insn number in the same rate.
Right now my idea is to write a small test case to see if using the same number on insn but with less loop will help or not?


Thanks again for more advise,
	Joel
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Subject: Re: *lcul and memory granularity question[Was: [parisc-linux]
	2.6.10-rc1-pa11 profile data]
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On Fri, Dec 03, 2004 at 03:00:33PM +0000, Joel Soete wrote:
> >- *lclu* can be rewritten to do better than 1-byte at a time
> 
> I have an additional question about parisc alignment and this remark:
> a char type var is 1byte align; ... but what's about a 3, 5, 7 and more 
> bytes struct size?

Don't think in terms of structs, think in terms of an arbitrary array of
bytes.  You can't assume anything about the alignment of lclu or the size.
In particular, you can't write more than the requested number of bytes.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
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he enjoys after this process of grotesque self-deception." -- Mark Twain
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: *lcul and memory granularity question[Was: [parisc-linux]
	2.6.10-rc1-pa11 profile data]
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Hello all,

Randolph Chung wrote:
> - *lclu* can be rewritten to do better than 1-byte at a time

I have an additional question about parisc alignment and this remark:
a char type var is 1byte align; ... but what's about a 3, 5, 7 and more bytes struct size?

My idea is that a 3bytes could be align as a 32bites word and clearing such struct could be done by clearing all the word;
the same for 5 and 7 bytes if aligned as 2*32bites and so on for an unrolled loop of the max cache size (128 bytes iirc);
and btw using a case define as we use for __put/get__user/kernel_asm?

Or the memory management is more complex then I imagine and I would really consider a 3bytes as 2+1 bytes (5=2*2+1, ...)?

Thanks a lot,
	Joel
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Subject: Re: More questions [Was: [parisc-linux] 2.6.10-rc1-pa11 profile data]
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> I test it on my b2k with 64bit kernel and it works but it didn't seems to 
> bring me any benefit?
> As far as I can believe readprofile: the ratio between the first and last 
> column is always the same (1/80 in this case).
> What did I miss?

what workload did you test this on? possibly you only see a benefit with
workloads that need to do a lot of page clearings.... so you probably
want to find a workload so that the first column is >>1

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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I got cvs.parisc-linux.org/download/linux-2.6/linux-2.6.10-rc2-pa2.tar.bz2
and attempted to compile it with standard options set.
It fails with

drivers/built-in.o: In function `sti_select_fbfont':
drivers/built-in.o(.init.text+0x2eb4): undefined reference to `find_font'
drivers/built-in.o(.init.text+0x2fd4): undefined reference to `get_default_font'
make: *** [.tmp_vmlinux1] Error 1

I'm building this on a K200.
Any suggestions?

Thanks
Richard Ray

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On Fri, Dec 03, 2004 at 03:55:54PM -0600, rray@tcmail.mstc.state.ms.us wrote:
> I got cvs.parisc-linux.org/download/linux-2.6/linux-2.6.10-rc2-pa2.tar.bz2
> and attempted to compile it with standard options set.

Sorry - I need a better definition of "standard" options.
Can you point at a specific .config file?
Perhaps one of those used by the autobuilder?

(See http://cvs.parisc-linux.org/download/linux-2.6/)

> It fails with
> 
> drivers/built-in.o: In function `sti_select_fbfont':
> drivers/built-in.o(.init.text+0x2eb4): undefined reference to `find_font'
> drivers/built-in.o(.init.text+0x2fd4): undefined reference to `get_default_font'
> make: *** [.tmp_vmlinux1] Error 1
> 
> I'm building this on a K200.
> Any suggestions?

I suspect a dependency is missing in the Kconfig file.
Can you enable CONFIG_VT and see if that fixes the problem?

See drivers/video/Makefile - it only builds drivers/video/console/fonts.c
if CONFIG_VT is enabled. Ergo CONFIG_FB_STI depends on CONFIG_VT
but that's not encoded in drivers/video/Kconfig:
config FB_STI
        tristate "HP STI frame buffer device support"
        depends on FB && PARISC
        default y
...

Hrm...Looking at drivers/video/console/Kconfig it seems
enabling CONFIG_FRAMEBUFFER_CONSOLE is also required.
Please verify that is also enabled.

hth,
grant
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On Fri, Dec 03, 2004 at 03:55:54PM -0600, rray@tcmail.mstc.state.ms.us wrote:
> I got cvs.parisc-linux.org/download/linux-2.6/linux-2.6.10-rc2-pa2.tar.bz2
> and attempted to compile it with standard options set.

Er, can you post the .config you used?

I just build that kernel with defconfig, and it linked fine.

Cheers,
	Kyle
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Hi,

I have started to add PA-Linux support to Libunwind.  At the moment,
I'm only targeting DWARF2 unwind info (not the SOM-style PARISC
unwind-records) and not everything is implemented/working yet.  Even
so, many tests in the built-in test-suite already succeed.  Thus, I
think that even in this early state, others may have some use for it
so I thought it might be a good idea to mention it on this list (and
of course, bug-fixes/contributions are always welcome, too ;-).

At the moment, the PA Linux support is available only via the
bitkeeper repository at:

	bk://unwind.bkbits.net/libunwind/

If you want to play with this, just be sure to read the README.

A brief blurb on what libunwind is about is attached below.  For more
details, see:

  http://www.hpl.hp.com/research/linux/libunwind/intro.php4

The web-site also hosts the man-pages for the libunwind API and has
info on the libunwind mailing list.

Enjoy,

	--david

--
Libunwind is a portable and efficient C API to enable call-chain
introspection.  Some examples for what it can be used include:

    exception handling
        The libunwind API makes it trivial to implement the
        stack-manipulation aspects of exception handling.

    debuggers
        The libunwind API makes it trivial for debuggers to generate
        the call-chain (backtrace) of the threads in a running
        program.

    introspection
        It is often useful for a running thread to determine its
        call-chain. For example, this is useful to display error
        messages (to show how the error came about) and for
        performance monitoring/analysis.

    efficient setjmp()
        With libunwind, it is possible to implement an extremely
        efficient version of setjmp(). Effectively, the only context
        that needs to be saved consists of the stack-pointer(s).
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On Sat, Dec 04, 2004 at 05:19:47PM -0800, David Mosberger wrote:
> Hi,
> 
> I have started to add PA-Linux support to Libunwind.

David,
Awesome!

> At the moment,
> I'm only targeting DWARF2 unwind info (not the SOM-style PARISC
> unwind-records) and not everything is implemented/working yet.

SOM is dead AFAIK. Only HPUX 32-bit uses SOM for anything.
I'm not sure where DWARF fits into the gcc releases but maybe
someone could remind me.

>   Even
> so, many tests in the built-in test-suite already succeed.  Thus, I
> think that even in this early state, others may have some use for it
> so I thought it might be a good idea to mention it on this list (and
> of course, bug-fixes/contributions are always welcome, too ;-).

:^)

> At the moment, the PA Linux support is available only via the
> bitkeeper repository at:
> 
> 	bk://unwind.bkbits.net/libunwind/

This worked for me:
# bk clone http://unwind.bkbits.net/libunwind/
# cd libunwind
# bk -r co -q

BTW, bitkeeper client is available for parisc-linux from bitkeeper.com.
I have it installed on most of my machines.

thanks again,
grant
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> > I'm only targeting DWARF2 unwind info (not the SOM-style PARISC
> > unwind-records) and not everything is implemented/working yet.
> 
> SOM is dead AFAIK. Only HPUX 32-bit uses SOM for anything.
> I'm not sure where DWARF fits into the gcc releases but maybe
> someone could remind me.

While only HP-UX 32-bit uses the SOM object format, parisc-linux
currently generates SOM-style unwind records generated from .callinfo
and other assembler statements.  At the moment, gdb uses the SOM-style
unwind records.

DWARF2 exception support has been available since GCC 3.3 but
the default exception model is still SJLJ.  SJLJ and DWARF2
can't be supported together in the same GCC build.  At the
moment, DWARF2 unwind info is generated only when using GCC
built with DWARF2 exception support, and when one of the following
GCC options is specified: -fexceptions, -funwind_tables or
-fasynchonous_unwind_tables.  You get -fexceptions when the
g++ driver is used, and possibly also with gcj.  Thus, some
migration to the new DWARF2 support is needed to take full
advantage of David's new library.

I must say I welcome David's new library.  Unwinding in gdb
has never been reliable with the SOM-style unwind records.
Some code reading is needed, etc.  The new library will make
it easy for applications to unwind on exceptions and print
backtraces when an internal problem occurs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Dec 04, 2004 at 05:19:47PM -0800, David Mosberger wrote:
...
> At the moment, the PA Linux support is available only via the
> bitkeeper repository at:
> 
> 	bk://unwind.bkbits.net/libunwind/
> 
> If you want to play with this, just be sure to read the README.

I read the README and learned I should be using gcc 3.4.x (and
debian testing default is gcc-3.3.4).

But I ran into a different (trivial) problem during the build:
...
make[1]: Leaving directory `/home/src/libunwind/tests'
Making all in doc
make[1]: Entering directory `/home/src/libunwind/doc'
latex2man -t ./libunwind.trans libunwind.tex libunwind.man
make[1]: latex2man: Command not found
make[1]: *** [libunwind.man] Error 127
make[1]: Leaving directory `/home/src/libunwind/doc'
make: *** [all-recursive] Error 1

apt-cache search latex2man and packages.debian.org didn't help.
Anyone have a clue which package latex2man is in?

thanks,
grant
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>>>>> On Sat, 4 Dec 2004 22:09:17 -0700, Grant Grundler <grundler@parisc-linux.org> said:

  Grant> On Sat, Dec 04, 2004 at 05:19:47PM -0800, David Mosberger
  Grant> wrote: ...
  >> At the moment, the PA Linux support is available only via the
  >> bitkeeper repository at:
  >> 
  >> bk://unwind.bkbits.net/libunwind/
  >> 
  >> If you want to play with this, just be sure to read the README.

  Grant> I read the README and learned I should be using gcc 3.4.x
  Grant> (and debian testing default is gcc-3.3.4).

  Grant> But I ran into a different (trivial) problem during the
  Grant> build: ...  make[1]: Leaving directory
  Grant> `/home/src/libunwind/tests' Making all in doc make[1]:
  Grant> Entering directory `/home/src/libunwind/doc' latex2man -t
  Grant> ./libunwind.trans libunwind.tex libunwind.man make[1]:
  Grant> latex2man: Command not found make[1]: *** [libunwind.man]
  Grant> Error 127 make[1]: Leaving directory
  Grant> `/home/src/libunwind/doc' make: *** [all-recursive] Error 1

  Grant> apt-cache search latex2man and packages.debian.org didn't
  Grant> help.  Anyone have a clue which package latex2man is in?

If the time-stamps are correct, it shouldn't even try to rebuild the
man files, but you can work around the lack of latex2man with

	$ make L2M=cp

  --david
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Xref: news.gmane.org gmane.linux.ports.parisc:22184

Hello,
It's late and I won't have a chance to chase this bug I just noticed
when trying to boot 2.6.10-rc3-pa1 (64bit, SMP) kernel on a500.

I set "maxcpus=1" and still get the following output:
CPU(s): 2 x PA8500 (PCX-W) at 440.000000 MHz
Setting cache flush threshold to 231180 (1 CPUs online)

I'm thinking that while two CPUs are present, only
one is "online", it doesn't feel right to report both
in the first line above. Is this expected behavior
or should we be indicating something like
	CPU(s): 1 (of 2) x PA8500 (PCX-W) at 440.000000 MHz


Other issues:
o the box is hanging after sym2 resets the SCSI bus.
  My first guess is something is wrong with interrupt delivery.

o omitting "maxcpus=1", the box will hang for about 60 seconds
  after printing the inventory. And then prints:
	Releasing cpu 1 now, hpa=fffffffffffa2000
  and continues on to the SCSI bus resets.

I have tried both gcc 3.0.4 and 3.3.4 (hppa64 versions) with the
same results (AFAICT).

hth,
grant


Main Menu: Enter command or menu > bo lan
Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Network Station Address 00306e-0c7a5e
System IP Address 192.168.0.112
Server IP Address 192.168.0.61

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl 1.5 root@c3k Fri May 14 16:17:38 MDT 2004

Boot image contains:
    0/vmlinux64 7209624 bytes @ 0xa000

Command line for kernel: 'HOME=/ root=/dev/nfs nfsroot=192.168.0.61:/home/tftpboot/idiot ip=dhcp console=ttyS0 maxcpus=1 palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 64-bit kernelELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 5237888 mediaptr 0x1000
Segment 1 load 00600000 size 362288 mediaptr 0x500000
Segment 2 load 0065c000 size 421608 mediaptr 0x559000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.10-rc3-pa1 (grundler@gsyprf11.external.hp.com) (gcc version 3.3.4 (Debian 1:3.3.4-13)) #97 SMP Sat Dec 4 22:07:50 PST 2004
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00005cb0 00000491 00000000 00000001 5e2962dc 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 17 rev 11 (0x0000022b)
capabilities 0x1
model 9000/800/A500-44
Memory Ranges:
 0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 Mb
 1) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 Mb
Total Memory: 4096 Mb
SMP: bootstrap CPU ID is 0
Built 2 zonelists
Kernel command line: HOME=/ root=/dev/nfs nfsroot=192.168.0.61:/home/tftpboot/idiot ip=dhcp console=ttyS0 maxcpus=1 palo_kernel=0/vmlinux
PID hash table entries: 4096 (order: 12, 131072 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
Memory: 4194304k available
Mount-cache hash table entries: 256 (order: 0, 4096 bytes)
Brought up 1 CPUs
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Crescendo 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5cb, 0x00004 }
2. Crescendo 440 at 0xfffffffffffa2000 [162] { 0, 0x0, 0x5cb, 0x00004 }
3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x09b, 0x00009 }
4. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
5. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
7. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
8. Elroy PCI Bridge at 0xfffffffffed3c000 [0/6] { 13, 0x0, 0x782, 0x0000a }
CPU(s): 2 x PA8500 (PCX-W) at 440.000000 MHz
Setting cache flush threshold to 231180 (1 CPUs online)
SBA found Astro 2.1 at 0xfffffffffed00000
LBA version TR4.0 (0x5) found at 0xfffffffffed30000
LBA version TR4.0 (0x5) found at 0xfffffffffed34000
LBA version TR4.0 (0x5) found at 0xfffffffffed38000
LBA version TR4.0 (0x5) found at 0xfffffffffed3c000
SCSI subsystem initialized
unwind_init: start = 0x104bf300, end = 0x104e7300, entries = 10240
Performance monitoring counters enabled for Crescendo 440
Initializing Cryptographic API
Soft power switch support not available.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 17 ports, IRQ sharing enabled
ttyS0 at MMIO 0xfffffffff8000000 (irq = 132) is a 16550A
ttyS1 at MMIO 0xfffffffff8000008 (irq = 132) is a 16550A
ttyS2 at MMIO 0xfffffffff8000010 (irq = 132) is a 16550A
ttyS3 at MMIO 0xfffffffff8007000 (irq = 133) is a 16550A
ttyS4 at MMIO 0xfffffffff8007008 (irq = 133) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
e100: Intel(R) PRO/100 Network Driver, 3.2.3-k2-NAPI
e100: Copyright(c) 1999-2004 Intel Corporation
acenic.c: v0.92 08/05/2002  Jes Sorensen, linux-acenic@SunSITE.dk
                            http://home.cern.ch/~jes/gige/acenic.html
0000:20:00.0: Alteon AceNIC Gigabit Ethernet at 0xfffffffffa000000, irq 256
  Tigon II (Rev. 6), Firmware: 12.4.11, MAC: 00:30:6e:0f:3a:75
  PCI bus width: 64 bits, speed: 66MHz, latency: 128 clks
0000:20:00.0: Firmware up and running
Linux Tulip driver version 1.1.13 (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth1: Digital DS21143 Tulip rev 65 at fffffffff8020000, 00:30:6E:0C:7A:5E, IRQ 128.
sym0: <896> rev 0x7 at pci 0000:00:01.0 irq 129
sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18m
elevator: using anticipatory as default io scheduler
sym0:0: No MSG OUT phase after selection with ATN.
eth0: Optical link UP (Full Duplex, Flow Control: )
sym0:0:0: ABORT operation started.
sym0:0:0: ABORT operation timed-out.
sym0:0:0: DEVICE RESET operation started.
sym0:0:0: DEVICE RESET operation timed-out.
sym0:0:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sym0:0:0: BUS RESET operation complete.
sym0:0: No MSG OUT phase after selection with ATN.
sym0:0:0: ABORT operation started.
sym0:0:0: ABORT operation timed-out.
sym0:0:0: HOST RESET operation started.
sym0: SCSI BUS has been reset.

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Xref: news.gmane.org gmane.linux.ports.parisc:22185

> It's late and I won't have a chance to chase this bug I just noticed
> when trying to boot 2.6.10-rc3-pa1 (64bit, SMP) kernel on a500.

fwiw that kernel booted on ios (a500 with 2xpa8500 @ 440mhz)

> I set "maxcpus=1" and still get the following output:
> CPU(s): 2 x PA8500 (PCX-W) at 440.000000 MHz
> Setting cache flush threshold to 231180 (1 CPUs online)

right, since that is an inventory message, and we still inventory all
the cpus, it will report all the available CPUs.

> I'm thinking that while two CPUs are present, only
> one is "online", it doesn't feel right to report both
> in the first line above. Is this expected behavior
> or should we be indicating something like
> 	CPU(s): 1 (of 2) x PA8500 (PCX-W) at 440.000000 MHz

we could do that easily enough if you think it's better...

> Other issues:
> o the box is hanging after sym2 resets the SCSI bus.
>   My first guess is something is wrong with interrupt delivery.

yes, that would explain this as well:
> o omitting "maxcpus=1", the box will hang for about 60 seconds
>   after printing the inventory. And then prints:
> 	Releasing cpu 1 now, hpa=fffffffffffa2000
>   and continues on to the SCSI bus resets.

that sounds like we timed out bringing up the 2nd cpu, altho if that
happened i would have expected an error message. if the 2nd cpu is not
processing interrupts, and we are assigning some of the interrupts to
the 2nd cpu, then the scsi bus resets will fail. you can try forcing
all the irqs to cpu0 and see if that lets the box boot....

> I have tried both gcc 3.0.4 and 3.3.4 (hppa64 versions) with the
> same results (AFAICT).

currently i'm using gcc-3.4.2 to build the kernel on ios, but in the
recent past i've tried 3.0.4 and 3.3.4 and both worked (but that was 
on -rc2)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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On Sat, Dec 04, 2004 at 09:15:00PM -0800, David Mosberger wrote:
> If the time-stamps are correct, it shouldn't even try to rebuild the
> man files,

I suspect the "bk -r -co -q" puts a current timestamp on the files.

>  but you can work around the lack of latex2man with
> 
> 	$ make L2M=cp

yep - that works too.

thanks,
grant
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Enabling CONFIG_FRAMEBUFFER_CONSOLE fixed the problem.
I was able to to complete the build.
I've attached my .config

But I get a kernel panic when I boot.

ncr53c720-0: rev 0xf irq 35
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3f
elevator: using anticipatory as default io scheduler
  Vendor: Seagate  Model: ST39236LC          Rev: HP02
  Type:   Direct-Access                      ANSI SCSI revision: 03
 target0:0:5: Beginning Domain Validation
ncr53c720-0-<5,*>: asynchronous.
ncr53c720-0-<5,*>: wide asynchronous.
ncr53c720-0-<5,*>: FAST-10 WIDE SCSI 20.0 MB/s (100 ns, offset 8)
 target0:0:5: Ending Domain Validation
ncr53c720-0-<6,*>: asynchronous.
Backtrace:
 [<1031d594>] ncr53c8xx_intr+0x4c/0xbc
 [<10107ad8>] do_irq+0xbc/0x19c
 [<10107c48>] do_cpu_irq_mask+0x90/0xf0
 [<1010d068>] intr_return+0x0/0x24
 [<10113fc8>] machine_restart+0x0/0x2c
Kernel Fault: Code=26 regs=10ac4500 (Addr=00000114)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110 Not tainted
r00-03  00000000 1049a810 1031c2b0 27e7f000
r04-07  00000000 00000000 27e7e000 00000000
r08-11  27e7e458 00000001 10508010 10489810
r12-15  000000f2 00000001 000000fd 000000f3
r16-19  10ac4100 00000002 f0000064 00000003
r20-23  00000001 00000000 f1800800 27e7e458
r24-27  ffffffff 00000006 27e7e000 10487010
r28-31  0000000e 105c2810 10ac4500 00000040
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1031c2b8 1031c2bc
 IIR: 68e50228    ISR: 00000000  IOR: 00000114
 CPU:        1   CR30: 10ac4000 CR31: f004f000
 ORIG_R28: 105bab7c
 IAOQ[0]: ncr_int_sir+0x414/0x80c
 IAOQ[1]: ncr_int_sir+0x418/0x80c
 RP(r2): ncr_int_sir+0x40c/0x80c
Kernel panic - not syncing: Kernel Fault

Thanks
Richard Ray


On Sat, 4 Dec 2004, Grant Grundler wrote:

> On Fri, Dec 03, 2004 at 03:55:54PM -0600, rray@tcmail.mstc.state.ms.us wrote:
> > I got cvs.parisc-linux.org/download/linux-2.6/linux-2.6.10-rc2-pa2.tar.bz2
> > and attempted to compile it with standard options set.
>
> Sorry - I need a better definition of "standard" options.
> Can you point at a specific .config file?
> Perhaps one of those used by the autobuilder?
>
> (See http://cvs.parisc-linux.org/download/linux-2.6/)
>
> > It fails with
> >
> > drivers/built-in.o: In function `sti_select_fbfont':
> > drivers/built-in.o(.init.text+0x2eb4): undefined reference to `find_font'
> > drivers/built-in.o(.init.text+0x2fd4): undefined reference to `get_default_font'
> > make: *** [.tmp_vmlinux1] Error 1
> >
> > I'm building this on a K200.
> > Any suggestions?
>
> I suspect a dependency is missing in the Kconfig file.
> Can you enable CONFIG_VT and see if that fixes the problem?
>
> See drivers/video/Makefile - it only builds drivers/video/console/fonts.c
> if CONFIG_VT is enabled. Ergo CONFIG_FB_STI depends on CONFIG_VT
> but that's not encoded in drivers/video/Kconfig:
> config FB_STI
>         tristate "HP STI frame buffer device support"
>         depends on FB && PARISC
>         default y
> ...
>
> Hrm...Looking at drivers/video/console/Kconfig it seems
> enabling CONFIG_FRAMEBUFFER_CONSOLE is also required.
> Please verify that is also enabled.
>
> hth,
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
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From: David Mosberger <davidm@napali.hpl.hp.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] PA-Linux version of libunwind
Date: Mon, 6 Dec 2004 11:17:13 -0800
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Hi John,

>>>>> On Sat, 4 Dec 2004 22:04:45 -0500 (EST), "John David Anglin" <dave@hiauly1.hia.nrc.ca> said:

  John> While only HP-UX 32-bit uses the SOM object format,
  John> parisc-linux currently generates SOM-style unwind records
  John> generated from .callinfo and other assembler statements.  At
  John> the moment, gdb uses the SOM-style unwind records.

Yes, that's why I mentioned SOM.  I already discussed the issue
briefly with Randolph.  We _could_ put PARISC Unwind Record support
into libunwind, but it's not clear whether it's worth the trouble.
The big issue is that under Linux, the only way to get to the PARISC
Unwind Records seems to be via the ELF file and that's not (directly)
accessible from within a running process.  That's not a problem for
gdb, of course, but in effect, use of PARISC Unwind Record would be
limited to what libunwind calls remote unwinding.  It may make more
sense to leave the PARISC Unwind Record support in gdb and just
declare support for those Unwind records as deprecated.

  John> I must say I welcome David's new library.  Unwinding in gdb
  John> has never been reliable with the SOM-style unwind records.
  John> Some code reading is needed, etc.  The new library will make
  John> it easy for applications to unwind on exceptions and print
  John> backtraces when an internal problem occurs.

gdb already has a DWARF2 unwinder and at this point I'm unsure whether
it's better to enable PARISC support for that unwinder or for
libunwind.  Whatever makes the most sense is fine with me.  However, I
do hope that having libunwind available on more (DWARF2) platforms
will get people away from constantly reinventing the wheel in regards
to unwinders.  As Randolph says, each unwinder tends to come with its
own set of limitations and bugs.  With the single source-tree provided
by libunwind, I hope to eliminate that problem.

	--david
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>>>>> On Sun, 5 Dec 2004 01:16:40 -0800, Randolph Chung <randolph@tausq.org> said:

  Randolph> The kernel contains a primitive SOM unwind record-based
  Randolph> unwinder. That will also need to be redone if we decide to
  Randolph> go to dwarf2 only unwinding (but i guess David is working
  Randolph> towards that anyway).

Ugh, it's good you mention this!  Just a few days ago, I raised the
question of in-kernel unwind support for various Linux platforms.
Nobody expressed a clear-cut interest so far (I fear I asked on the
wrong mailing-list...).  It sounds like PARISC Linux would benefit
from having libunwind-support in the kernel?  I'm pretty sure Alpha
needs that too.  There are probably others that would want it, too.
So far, it looks like only SPARC and PPC{,64} don't need libunwind,
since the hardware/calling-convention squirrels away enough info in
the stack-frames to not need unwind-info.

  Randolph> One tricky thing though is that while generating SOM-style
  Randolph> unwind records for hand-written assembly is fairly
  Randolph> straightforward, generating dwarf2-unwind data is not
  Randolph> quite so easy... possibly we need to do some work to make
  Randolph> this somewhat easier to handle.

The cfi-directive support recently added to the binutils makes it
fairly straight-forward though.  Basically, you just need to annotate
the instructions that manipulate the stack-pointer and instructions
that save/restore a preserved register.

	--david
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From: "Joel Soete" <soete.joel@tiscali.be>
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--========/418A81310000D172/mail-7-bnl.tiscali.it
Content-Type: text/plain; charset="ISO-8859-15"
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Hello all,

here are the results of some clup test:
(run on b2k running  2.6.10-rc3-pa2 64bit)
time ./clup0; time ./clup1 ; time ./clup2

real    0m0.498s
user    0m0.440s
sys     0m0.014s

real    0m0.277s
user    0m0.229s
sys     0m0.010s

real    0m0.272s
user    0m0.227s
sys     0m0.013s

(the corresponding src are attached. 
Compile with (for remind:):
ggc -o clup0 clup0.c
gcc -mach=3D2.0 -o clup1 clup1.c
gcc -mach=3D2.0 -o clup2 clup2.c)

so real benefit to use double word insn on 64bit (clup0 verusu clup1)

but not reducing the number of loop (clup1 versus clup2)

hth,
    Joel


-------------------------------------------------------------------------=
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Subject: Re: More questions [Was: [parisc-linux] 2.6.10-rc1-pa11 profile data]
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Hello Randolph,

> 
> 
> > I test it on my b2k with 64bit kernel and it works but it didn't seem=
s
> to 
> > bring me any benefit?
> > As far as I can believe readprofile: the ratio between the first and
last
> 
> > column is always the same (1/80 in this case).
> > What did I miss?
> 
> what workload did you test this on? possibly you only see a benefit wit=
h
> workloads that need to do a lot of page clearings.... so you probably
> want to find a workload so that the first column is >>1
> 
I re-do the following test with 2.6.10-rc3-pa2 with this b2k and 64bits
kernel:
readprofile -r ; make V=3D1 vmlinux 2>&1 | tee /var/logs/k-2.6.10-rc3-pa2=
-b2k64
; readprofile > /var/logs/prof2b-2.6.10-rc3-pa2-b2k64-3

I build first the kernel from cvs and reboot it to obtain following resul=
t:
/var/logs/prof2b-2.6.10-rc3-pa2-b2k64-3: 15500 __clear_user_page_asm   
                138.3929 (i.e. 1/112)

I apply previous mentioned lclu patch, rebuild again and reboot to rebuil=
d
a 4th time this kernel to obtain:
/var/logs/prof2b-2.6.10-rc3-pa2-b2k64-4: 12609 __clear_user_page_asm   
                112.5804 (i.e. 1/112)

Interesting: the ratio stay cst between test but the number of clock tick=
s
was well reduced (so I presume a potential benefit even though small ;-)

hth,
    Joel


-------------------------------------------------------------------------=
--
Tiscali vous offre 3 mois d'ADSL et 3 mois de DVD gratuits...profitez-en.=
..
http://reg.tiscali.be/adsl/default.asp?lg=3DFR




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Subject: Re: [parisc-linux] Linux 2.6, 712-workstation and (no) keyboard
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Cornee,

the attached config works with my 712, but there are some things to watch f=
or=20
or the keyboard will not work.


Op dinsdag 7 december 2004 13:51, schreef Corn=E9 Beerse:
> Hello,
>
> Recently I found time to update my 712 workstation to kernel version 2.6.=
x.
> Most recent kernels I tried from
> http://cvs.parisc-linux.org/download/linux-2.6/ or build from source, don=
't
> give me a keyboard at the console.
>
> Is this something I have to define, like re-create device files with mkde=
v?
>
> Is something changed? I recall messages on using special pa-ps2 code v.s.
> default linux ps2 code. Should a new 712-config file suit my needs? Which
> options to try/test/use?
>
> Or is it still work in progress? Then: what's the status and can I
> contribute?
>
> At build-time and/or boot-time I donnot see any alarming messages like
> failing builds or links or such.
>
>
>
> CBee
>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

=2D-=20

	Greetings, Michiel Broek

mbroek@mbse.dds.nl  or  Fidonet 2:280/2802 to Michiel Broek.

--Boundary-00=_sOgtBNtXPA8x2KR
Content-Type: text/plain; charset="iso-8859-1"; name="config-parisc-2.6.9-pa1"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename="config-parisc-2.6.9-pa1"

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.9-pa1
# Sat Oct 23 12:57:08 2004
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y

#
# General setup
#
CONFIG_LOCALVERSION=""
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
# CONFIG_AUDIT is not set
CONFIG_LOG_BUF_SHIFT=15
CONFIG_HOTPLUG=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_EMBEDDED is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SHMEM=y
# CONFIG_TINY_SHMEM is not set

#
# Loadable module support
#
CONFIG_MODULES=y
# CONFIG_MODULE_UNLOAD is not set
CONFIG_OBSOLETE_MODPARM=y
# CONFIG_MODVERSIONS is not set
# CONFIG_KMOD is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
CONFIG_PA7100LC=y
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
# CONFIG_PA8X00 is not set
CONFIG_PA11=y
# CONFIG_64BIT is not set
# CONFIG_SMP is not set
# CONFIG_DISCONTIGMEM is not set
# CONFIG_PREEMPT is not set
# CONFIG_HPUX is not set

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
# CONFIG_HPPB is not set
# CONFIG_IOMMU_CCIO is not set
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
# CONFIG_EISA is not set
# CONFIG_PCI is not set
# CONFIG_CHASSIS_LCD_LED is not set
# CONFIG_PDC_CHASSIS is not set

#
# PCMCIA/CardBus support
#
# CONFIG_PCMCIA is not set

#
# PCI Hotplug Support
#

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=m

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=m
# CONFIG_DEBUG_DRIVER is not set

#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set

#
# Parallel port support
#
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_PC_CML1=m
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_GSC=y
# CONFIG_PARPORT_OTHER is not set
# CONFIG_PARPORT_1284 is not set

#
# Plug and Play support
#

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_PARIDE is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=y
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set

#
# ATA/ATAPI/MFM/RLL support
#
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI Transport Attributes
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set

#
# SCSI low-level drivers
#
# CONFIG_SCSI_SATA is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
# CONFIG_SCSI_ZALON is not set
# CONFIG_SCSI_DEBUG is not set

#
# Multi-device support (RAID and LVM)
#
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID5=m
CONFIG_MD_RAID6=m
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_DM is not set

#
# Fusion MPT device support
#

#
# IEEE 1394 (FireWire) support
#

#
# I2O device support
#

#
# Networking support
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=y
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_IPV6 is not set
# CONFIG_NETFILTER is not set

#
# SCTP Configuration (EXPERIMENTAL)
#
# CONFIG_IP_SCTP is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_HW_FLOWCONTROL is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set
# CONFIG_NET_CLS_ROUTE is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_ETHERTAP is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_MII is not set
CONFIG_LASI_82596=m

#
# Ethernet (1000 Mbit)
#

#
# Ethernet (10000 Mbit)
#

#
# Token Ring devices
#

#
# Wireless LAN (non-hamradio)
#
CONFIG_NET_RADIO=y

#
# Obsolete Wireless cards support (pre-802.11)
#
# CONFIG_STRIP is not set
# CONFIG_ATMEL is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
# CONFIG_PPP_FILTER is not set
# CONFIG_PPP_ASYNC is not set
# CONFIG_PPP_SYNC_TTY is not set
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPPOE=m
# CONFIG_SLIP is not set
# CONFIG_SHAPER is not set
# CONFIG_NETCONSOLE is not set

#
# ISDN subsystem
#
# CONFIG_ISDN is not set

#
# Telephony Support
#
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input I/O drivers
#
# CONFIG_GAMEPORT is not set
CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_PARKBD is not set
CONFIG_SERIO_GSCPS2=y
# CONFIG_HP_SDC is not set
# CONFIG_SERIO_RAW is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_ATKBD_HP_KEYCODES is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
CONFIG_KEYBOARD_HIL_OLD=m
# CONFIG_KEYBOARD_HIL is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_HIL is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_UINPUT is not set
# CONFIG_HP_SDC_RTC is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_SERIAL_NONSTANDARD is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=m
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_MULTIPORT is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MUX is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=m
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_TIPAR is not set

#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GEN_RTC=y
# CONFIG_GEN_RTC_X is not set
CONFIG_DTLK=m
# CONFIG_R3964 is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_RAW_DRIVER is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Dallas's 1-wire bus
#
# CONFIG_W1 is not set

#
# Misc devices
#

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set

#
# Graphics support
#
CONFIG_FB=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_STI=y
# CONFIG_FB_VIRTUAL is not set

#
# Console display driver support
#
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=128
CONFIG_DUMMY_CONSOLE_ROWS=48
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y

#
# Logo configuration
#
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_LOGO_PARISC_CLUT224=y

#
# Sound
#
CONFIG_SOUND=y

#
# Advanced Linux Sound Architecture
#
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_RAWMIDI=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
# CONFIG_SND_SEQUENCER_OSS is not set
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set

#
# Generic devices
#
CONFIG_SND_MPU401_UART=m
CONFIG_SND_DUMMY=m
# CONFIG_SND_VIRMIDI is not set
CONFIG_SND_MTPAV=m
CONFIG_SND_SERIAL_U16550=m
CONFIG_SND_MPU401=m

#
# ALSA GSC devices
#
CONFIG_SND_HARMONY=y

#
# Open Sound System
#
# CONFIG_SOUND_PRIME is not set

#
# USB support
#

#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_SYSFS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVPTS_FS_XATTR is not set
CONFIG_TMPFS=y
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set

#
# Network File Systems
#
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_DIRECTIO is not set
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V4 is not set
CONFIG_NFSD_TCP=y
CONFIG_ROOT_NFS=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=y
CONFIG_SUNRPC=y
# CONFIG_RPCSEC_GSS_KRB5 is not set
# CONFIG_RPCSEC_GSS_SPKM3 is not set
CONFIG_SMB_FS=m
# CONFIG_SMB_NLS_DEFAULT is not set
CONFIG_CIFS=m
# CONFIG_CIFS_STATS is not set
# CONFIG_CIFS_XATTR is not set
# CONFIG_CIFS_POSIX is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_MINIX_SUBPARTITION is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_LDM_PARTITION is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_ULTRIX_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_EFI_PARTITION is not set

#
# Native Language Support
#
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m

#
# Profiling support
#
# CONFIG_PROFILING is not set

#
# Kernel hacking
#
CONFIG_DEBUG_KERNEL=y
CONFIG_MAGIC_SYSRQ=y
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_INFO is not set

#
# Security options
#
CONFIG_SECURITY=y
# CONFIG_SECURITY_NETWORK is not set
CONFIG_SECURITY_CAPABILITIES=y
# CONFIG_SECURITY_SELINUX is not set

#
# Cryptographic options
#
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_TEST is not set

#
# Library routines
#
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC32 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=m
CONFIG_ZLIB_DEFLATE=m

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On Tue, Dec 07, 2004 at 03:12:37PM +0100, Joel Soete wrote:
> Hello all,
> 
> here are the results of some clup test:
> (run on b2k running  2.6.10-rc3-pa2 64bit)
> time ./clup0; time ./clup1 ; time ./clup2
> 
> real    0m0.498s
> user    0m0.440s
> sys     0m0.014s
> 
> real    0m0.277s
> user    0m0.229s
> sys     0m0.010s
>
> real    0m0.272s
> user    0m0.227s
> sys     0m0.013s

cool - these are good results for evaluating instruction pipeline.

Unless you are continuously clearing the new pages
I would expect your test is just pounding the cache
and not real memory.

I looked over the code and wasn't sure how big the "memory footprint"
your test had. But 40*PAGESIZE didn't seem like nearly enough.

It should walk through at least 32MB of RAM to be certain it's
not touching the same cachelines over again. For PA8800 it would
need to be 128MB or something like that.

> 
> (the corresponding src are attached.
> Compile with (for remind:):
> ggc -o clup0 clup0.c
> gcc -mach=2.0 -o clup1 clup1.c
> gcc -mach=2.0 -o clup2 clup2.c)
> 
> so real benefit to use double word insn on 64bit (clup0 verusu clup1)
> 
> but not reducing the number of loop (clup1 versus clup2)

Well, that's still 5/270 or almost 2%.
Doubling the loop is worth doing IMHO in this case.

Do you also have time to add prefetching to clup2?

Look at the kernel prefetchw() implementation in include/asm/processor.h.
You want to use something that ends up looking like
	__asm__("ldd L1_CACHE_BYTES*N(%0), %%r0" : : "r" (addr));

Vary the value "N" from 2 to 8 to see what's optimal.
Prefetching too much doesn't help either.

thanks,
grant
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Hello Grant,

> > It should walk through at least 32MB of RAM to be certain it's
> > not touching the same cachelines over again. For PA8800 it would
> > need to be 128MB or something like that.
> >
Here is the new test code (purged of printf() debug) let me call clup5.c
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

#ifndef __LP64__
#warning "Not supported on 32bit cpu"
#define L1_CACHE_BYTES		64
#define	N_L1_CACHE_BYTES	128	/* 2*L1_CACHE_BYTES */
#endif

inline void __clear_user_page_asm(unsigned long vaddr)
{

asm volatile ("ldi	64,%%r1\n"
"1:	std	%%r0,0(%0)\n"		
"	std	%%r0,8(%0)\n"		
"	std	%%r0,16(%0)\n"	
"	std	%%r0,24(%0)\n"
"	std	%%r0,32(%0)\n"
"	std	%%r0,40(%0)\n"
"	std	%%r0,48(%0)\n"	
"	std	%%r0,56(%0)\n"
"	std	%%r0,64(%0)\n"		
"	std	%%r0,72(%0)\n"		
"	std	%%r0,80(%0)\n"	
"	std	%%r0,88(%0)\n"
"	std	%%r0,96(%0)\n"
"	std	%%r0,104(%0)\n"
"	std	%%r0,112(%0)\n"	
"	std	%%r0,120(%0)\n"
"	addib,>  -2,%%r1,1b\n"
"	ldo	128(%0),%0"
	:		
	: "r"(vaddr) );
}

inline void prefetchw(const void *addr)
{
	__asm__("ldd 512(%0), %%r0" : : "r" (addr));
}

/* 
#define	INIT	1
#define	DEBUG	1
 */

#define PAGESIZ 4*1024
#define MEMSIZ  1*PAGESIZ*1024  /* i.e. 4Mb */

int main(int argc, char * * argv, char * * env)
{
	char APage[MEMSIZ];
	int i, j, k;

	for (k=3D0; k<8; k++) {

	for (i=3D0; i<MEMSIZ; i+=3DPAGESIZ) {
		prefetchw((void *)(APage+i));
		__clear_user_page_asm((unsigned long)(APage+i));
	}

	} /* end for k */
	return 0;
}

My 1st pb is the table size:
I can use the max size of 4Mb but as soon as I try 8Mb the prgm segfault;=

what did I missed again?

(temporaely I loop 8* the cleanup of a 4Mb char table ;-)

That said I also used the following clup4.c:
#ifndef __LP64__
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#endif

#define LP64	1 

inline void __clear_user_page_asm(unsigned long vaddr)
{

asm volatile ("ldi	64,%%r1\n"
#ifdef LP64
"1:	std	%%r0,0(%0)\n"		
"	std	%%r0,8(%0)\n"		
"	std	%%r0,16(%0)\n"	
"	std	%%r0,24(%0)\n"
"	std	%%r0,32(%0)\n"
"	std	%%r0,40(%0)\n"
"	std	%%r0,48(%0)\n"	
"	std	%%r0,56(%0)\n"
#else
"1:	stw	%%r0,0(%0)\n"
"	stw	%%r0,4(%0)\n"
"	stw	%%r0,8(%0)\n"
"	stw	%%r0,12(%0)\n"
"	stw	%%r0,16(%0)\n"
"	stw	%%r0,20(%0)\n"
"	stw	%%r0,24(%0)\n"
"	stw	%%r0,28(%0)\n"
"	stw	%%r0,32(%0)\n"
"	stw	%%r0,36(%0)\n"	
"	stw	%%r0,40(%0)\n"
"	stw	%%r0,44(%0)\n"
"	stw	%%r0,48(%0)\n"	
"	stw	%%r0,52(%0)\n"
"	stw	%%r0,56(%0)\n"
"	stw	%%r0,60(%0)\n"
#endif
"	addib,>  -1,%%r1,1b\n"
"	ldo	64(%0),%0"
	:		
	: "r"(vaddr) );
}

#define PAGESIZ 4*1024
#define MEMSIZ  1*PAGESIZ*1024  /* i.e. 4Mb */

int main(int argc, char * * argv, char * * env)
{
	char APage[MEMSIZ];
	unsigned int i, j, k;

	for (k=3D0; k<8; k++) {

	for (i=3D0; i<MEMSIZ; i+=3DPAGESIZ) {
		__clear_user_page_asm((unsigned long)(APage+i));
	}

	} /* end for k */
	return 0;
}

as ref (the old clup1 with page size changed) and got following results:
time ./clup4; time ./clup5 # pref =3D 128

real	0m0.108s
user	0m0.059s
sys	0m0.047s

real	0m0.108s
user	0m0.057s
sys	0m0.048s

time ./clup4; time ./clup5 # pref =3D 256

real	0m0.108s
user	0m0.058s
sys	0m0.048s

real	0m0.108s
user	0m0.060s
sys	0m0.045s

time ./clup4 ; time ./clup5 # pref =3D512

real	0m0.108s
user	0m0.059s
sys	0m0.047s

real	0m0.108s
user	0m0.056s
sys	0m0.050s

Prefectch doesn't seems to help but not sure I use it as I should?

Thx,
    Joel


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On Tue, Dec 07, 2004 at 03:12:37PM +0100, Joel Soete wrote:
> here are the results of some clup test:
...

Joel,
I also rewrote the test and parked it on:
	http://iou.parisc-linux.org/hppa/clup.c

Here's the output from a a500-6x running 2.6.10-rc1-pa12-SMP:
grundler@iodine:~$ gcc-3.3 -o clup0 clup.c
grundler@iodine:~$ gcc-3.3 -DLOOP2X -o clup1 clup.c
grundler@iodine:~$ gcc-3.3 -march=2.0 -DLP64 -o clup2 clup.c
grundler@iodine:~$ gcc-3.3 -march=2.0 -DLP64 -DLOOP2X -o clup3 clup.c
grundler@iodine:~$ gcc-3.3 -march=2.0 -DLP64 -DLOOP2X -DPREFETCH -o clup4 clup.c
grundler@iodine:~$ for i in 0 1 2 3 4; do time ./clup$i ; done 2>&1 | fgrep user 
user    0m2.393s
user    0m2.392s
user    0m1.238s
user    0m1.224s
user    0m1.225s

I've varied the prefetch values and nothing seems to be helping.
I have to wonder if it's because the kernel VM is interferring
with the test.

But doubling the stride for 64-bit is consistently ~1.8% improvement.

grant
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> I also rewrote the test and parked it on:
> 	http://iou.parisc-linux.org/hppa/clup.c
> 
Cool (thanks a lot)

> Here's the output from a a500-6x running 2.6.10-rc1-pa12-SMP:
> grundler@iodine:~$ gcc-3.3 -o clup0 clup.c
> grundler@iodine:~$ gcc-3.3 -DLOOP2X -o clup1 clup.c
> grundler@iodine:~$ gcc-3.3 -march=3D2.0 -DLP64 -o clup2 clup.c
> grundler@iodine:~$ gcc-3.3 -march=3D2.0 -DLP64 -DLOOP2X -o clup3 clup.c=

> grundler@iodine:~$ gcc-3.3 -march=3D2.0 -DLP64 -DLOOP2X -DPREFETCH -o c=
lup4
> clup.c
> grundler@iodine:~$ for i in 0 1 2 3 4; do time ./clup$i ; done 2>&1 |
fgrep
> user 
> user    0m2.393s
> user    0m2.392s
> user    0m1.238s
> user    0m1.224s
> user    0m1.225s
> 
> I've varied the prefetch values and nothing seems to be helping.
> I have to wonder if it's because the kernel VM is interferring
> with the test.
> 
> But doubling the stride for 64-bit is consistently ~1.8% improvement.
> 
Ok wil I prepare a patch or you?

Thx again,
    Joel

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Subject: Re: godd news [[WasRe: [parisc-linux] but still panic: [WAS:
	2.6.10-rc1-pa15 boot fine	on n4k but still	annoying bactrace]]
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On Thu, 2004-12-09 at 18:47 +0000, Joel Soete wrote:
> Now that's a bit more then 48h that loop is running on n4k with k-2.6.10-rc3-pa3
> (already rebuild 214 time ;-)

Well, this isn't necessarily good news.  I still think the problem is
triggered by a race in the signal code.  However, if its no longer
tripping, it means that the code has changed to obscure it ... which
means it's not going to get fixed until it shows up again.

James


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On Mon, Dec 06, 2004 at 09:03:03AM -0600, rray@tcmail.mstc.state.ms.us wrote:
> Enabling CONFIG_FRAMEBUFFER_CONSOLE fixed the problem.

good.

> I was able to to complete the build.
> I've attached my .config
> 
> But I get a kernel panic when I boot.
...
> Backtrace:
>  [<1031d594>] ncr53c8xx_intr+0x4c/0xbc
>  [<10107ad8>] do_irq+0xbc/0x19c
>  [<10107c48>] do_cpu_irq_mask+0x90/0xf0
>  [<1010d068>] intr_return+0x0/0x24
>  [<10113fc8>] machine_restart+0x0/0x2c
> Kernel Fault: Code=26 regs=10ac4500 (Addr=00000114)

Can you remind me which platform you are booting this on?

> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001000000000000001110 Not tainted
> r00-03  00000000 1049a810 1031c2b0 27e7f000
> r04-07  00000000 00000000 27e7e000 00000000
> r08-11  27e7e458 00000001 10508010 10489810
> r12-15  000000f2 00000001 000000fd 000000f3
> r16-19  10ac4100 00000002 f0000064 00000003
> r20-23  00000001 00000000 f1800800 27e7e458
> r24-27  ffffffff 00000006 27e7e000 10487010
> r28-31  0000000e 105c2810 10ac4500 00000040
> sr0-3   00000000 00000000 00000000 00000000
> sr4-7   00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 1031c2b8 1031c2bc
>  IIR: 68e50228    ISR: 00000000  IOR: 00000114
>  CPU:        1   CR30: 10ac4000 CR31: f004f000
>  ORIG_R28: 105bab7c
>  IAOQ[0]: ncr_int_sir+0x414/0x80c
>  IAOQ[1]: ncr_int_sir+0x418/0x80c
>  RP(r2): ncr_int_sir+0x40c/0x80c

This is clearly a driver bug. I have no clue about
that particular driver though and can't look at it now.
I hope someone else can.

thanks for the report,
grant
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Hello James,

James Bottomley wrote:
> On Thu, 2004-12-09 at 18:47 +0000, Joel Soete wrote:
> 
>>Now that's a bit more then 48h that loop is running on n4k with k-2.6.10-rc3-pa3
>>(already rebuild 214 time ;-)
> 
> 
> Well, this isn't necessarily good news.  I still think the problem is
> triggered by a race in the signal code.  However, if its no longer
> tripping, it means that the code has changed to obscure it ... which
> means it's not going to get fixed until it shows up again.
> 
> James
> 
> 
> 
You had right (i was just luky in the previous test):
Backtrace:
  [<0000000010165698>] update_process_times+0x50/0x90
  [<0000000010120fa0>] smp_do_timer+0x78/0x80
  [<0000000010115938>] timer_interrupt+0xd8/0x2f0
  [<0000000010116630>] do_irq+0xd8/0x1e8
  [<0000000010116820>] do_cpu_irq_mask+0xe0/0x150
  [<0000000010107074>] intr_return+0x0/0x24


Kernel Fault: Code=26 regs=0000000068750dc0 (Addr=00000000000000d0)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Not tainted
r00-03  0000000000000000 ffffffffffff3d80 000000001016554c 000000001061ef20
r04-07  000000008f24f738 00000000000000de 0000000000000000 0000000000000000
r08-11  0000000000000001 0000000068750580 0000000000000010 000000008f24f7d8
r12-15  00000000ffffff7d 0000000000023d30 000000008f24f850 0000000068750410
r16-19  0000000068750580 00000000000eddc8 0000000000000000 0000000000000000
r20-23  0000000037800000 0000000037800000 0000000000000000 0000000000003780
r24-27  0000000000000000 0000000000000000 0000000000003780 000000001061ef20
r28-31  0000000000000000 0000000000000000 0000000068750dc0 000000000000fa00
sr0-3   0000000003e2f000 0000000000000000 0000000000000000 0000000003e2f000
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010165554 0000000010165558
  IIR: 527401a0    ISR: 0000000000000000  IOR: 00000000000000d0
  CPU:        0   CR30: 0000000068750000 CR31: 00000000105e4000
  ORIG_R28: 0000000010463c58
  IAOQ[0]: update_one_process+0x74/0x168
  IAOQ[1]: update_one_process+0x78/0x168
  RP(r2): update_one_process+0x6c/0x168
Kernel panic - not syncing: Kernel Fault
  <0>Rebooting in 120 seconds..

this time it panics after 138 loop only?

I well reach to build a kernel with CONFIG_DEBUG_RWLOCK
<http://lists.parisc-linux.org/pipermail/parisc-linux/2004-December/025337.html>

but failed to boot.

Don't you think it could help to debug this pb?

Thanks for all,
	Joel
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On Sat, Dec 11, 2004 at 12:06:45PM +0000, Joel Soete wrote:
> (iirc you can also safely get rid of pci stuff on your k )

He can but might need it for card-mode Dino 100BT cards.
BTW,I have 2 dual port 100BT HSC cards if anyone wants them.

grant
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In reference to a message from John David Anglin, dated Dec 12:
> This is on gsyprf11.  We had a SIGSEGV because r26 is 0 but how
> did r26 get to be 0?

Do you still have the corefile for this? does "info register" give
register values that are the same as what you see with "p $r26"?

randolph
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On Sat, Dec 11, 2004 at 12:06:45PM +0000, Joel Soete wrote:
> >A K200 iirc?
> 
> Sorry for auto-reply but I go back to your previous mail and compare your 
> config file with mine and noticed some details:
> 
> 1) may be you need hppb bus option ON; the diff shows me:
> --- k200-hp-debian-1_config	2004-12-11 12:38:46.307780990 +0100
> +++ config-2.6.10-rc3-pa5	2004-12-11 12:36:59.434552100 +0100
> [...]
> -# CONFIG_HPPB is not set
> +CONFIG_HPPB=y

Shouldn't make any difference; the ncr720 is on the GSC bus.
http://www.openpa.net/systems/hawk.html shows the K class does have HPPB
slots, so I would suggest that you both have the HPPB option set wrongly;
there is no HPPB on the C class workstations, but there is for K class.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Xref: news.gmane.org gmane.linux.ports.parisc:22203

This is on gsyprf11.  We had a SIGSEGV because r26 is 0 but how
did r26 get to be 0?

dave@gsyprf11:~/gcc-4.0/objdir/hppa-linux/libjava$ gdb /home/dave/opt/gnu/bin/make -c core.save
...
Core was generated by `make AR_FLAGS=rc CC_FOR_BUILD=gcc CFLAGS=-O2 -g -O2 CXXFLAGS=-g -O2 -D_GNU_SOUR'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /home/dave/opt/gnu/lib/libutil.so.1...done.
Loaded symbols for /home/dave/opt/gnu/lib/libutil.so.1
Reading symbols from /home/dave/opt/gnu/lib/librt.so.1...done.
Loaded symbols for /home/dave/opt/gnu/lib/librt.so.1
Reading symbols from /home/dave/opt/gnu/lib/libc.so.6...done.
Loaded symbols for /home/dave/opt/gnu/lib/libc.so.6
Reading symbols from /home/dave/opt/gnu/lib/libpthread.so.0...done.
Loaded symbols for /home/dave/opt/gnu/lib/libpthread.so.0
Reading symbols from /lib/ld.so.1...done.
Loaded symbols for /lib/ld.so.1
#0  0x000160e0 in set_command_state (file=0x0, state=2) at ../file.c:556
556       file->command_state = state;
(gdb) bt
#0  0x000160e0 in set_command_state (file=0x0, state=2) at ../file.c:556
#1  0x0001adec in start_job_command (child=0x75d0b8) at ../job.c:1249
...
(gdb) disass 0x0001addc 0x0001adfc
Dump of assembler code from 0x1addc to 0x1adfc:
0x0001addc <start_job_command+888>:     ldw -124(,sp),r19
0x0001ade0 <start_job_command+892>:     ldi 2,r25
0x0001ade4 <start_job_command+896>:     b,l 0x160dc <set_command_state>,rp
0x0001ade8 <start_job_command+900>:     ldw 4(,r19),r26
...
(gdb) disass 0x000160c0 0x000160f0
Dump of assembler code from 0x160c0 to 0x160f0:
...
0x000160dc <set_command_state+0>:       depw,z r25,17,2,r20
0x000160e0 <set_command_state+4>:       ldw 50(,r26),r19
(gdb) p/x $r26
$1 = 0x0
(gdb) p/x $r25
$4 = 0x2
(gdb) p/x $r19
$8 = 0x75d0b8
(gdb) p/x *($r19 + 4)
$7 = 0x1728b8
(gdb) p/x $rp
$10 = 0x1adef

It would seem r26 should contain 0x1728b8.  I don't know if this is
a coincidence but r15 contains this value:

(gdb) p/x $r15
$1 = 0x1728b8

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:22204

Hi all parisc users

I have another problem with my D270 i have big and working UPS in this machine 
but I don't have original cable to connect UPS with RS port.

So I have two request:
Maybe anyone have a schema of connection in this cable i will be grateful.
And second who now how working communication in this UPS (it is dump or  smart 
mode).

Thanks for any help

----------------------------------------------------------------------
Dzwon kilka razy taniej! >>> http://link.interia.pl/f1840

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Subject: [parisc-linux] 
	Re: Gcc bug or I missunderstand? [ftsd %fr22, 56(%sr0,
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Xref: news.gmane.org gmane.linux.ports.parisc:22205

> it failed to build because:
> 
> gcc -save-temps -o tmset5 tmset5.c
> tmset5.s: Assembler messages:
> tmset5.s:122: Error: Invalid operands
> tmset5.s:130: Error: Invalid operands
> tmset5.s:138: Error: Invalid operands
> tmset5.s:146: Error: Invalid operands
> tmset5.s:154: Error: Invalid operands
> tmset5.s:162: Error: Invalid operands
[...]
> it seems that if d>8 there is a pb?
> Did I miss something?

No, this is a known bug with binutils; nobody has bothered to look
into/fix it yet :(

randolph
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Subject: Re: [parisc-linux] Re: Gcc bug or I missunderstand? [ftsd %fr22,
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On Wed, Dec 15, 2004 at 08:39:07AM -0800, Randolph Chung wrote:
> > it seems that if d>8 there is a pb?
> > Did I miss something?
> 
> No, this is a known bug with binutils; nobody has bothered to look
> into/fix it yet :(

Quick look at page 9-24 of the Kane book indicates that for d between +15
and -16 we use format 42 and for d outside that range, we use format 3.
Looks like nobody bothered to teach binutils about this longer form yet.
Is it possible it's only available for PA2.0 processors?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
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On Wed, Dec 15, 2004 at 05:18:13PM +0000, Matthew Wilcox wrote:
> Quick look at page 9-24 of the Kane book indicates that for d between +15
> and -16 we use format 42 and for d outside that range, we use format 3.
> Looks like nobody bothered to teach binutils about this longer form yet.
> Is it possible it's only available for PA2.0 processors?

Yes - that seems to be the case.
FSTD is PA2.0 Mnemonic. Page J-4 of the same book.

The two corresponding PA 1.1 ops are FSTDS and FSTDX.
FSTDS is the short form (5 bits immediate).
We could use FSTDX but it will require another register in the asm.

grant
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> 
> On Wed, Dec 15, 2004 at 05:18:13PM +0000, Matthew Wilcox wrote:
> > Quick look at page 9-24 of the Kane book indicates that for d between=

+15
> > and -16 we use format 42 and for d outside that range, we use format
3.
> > Looks like nobody bothered to teach binutils about this longer form
yet.
> > Is it possible it's only available for PA2.0 processors?
(mmm I just forget to memtioned that I used -march=3D2.0)
> 
> Yes - that seems to be the case.
> FSTD is PA2.0 Mnemonic. Page J-4 of the same book.
> 
> The two corresponding PA 1.1 ops are FSTDS and FSTDX.
> FSTDS is the short form (5 bits immediate).
> We could use FSTDX but it will require another register in the asm.
> 
> grant

Well ok I want that works for the two arch I had better to incr %0 ?
I will check perf.

Thanks for all advises,
    Joel

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On Wed, Dec 15, 2004 at 05:20:37PM +0100, Stian Skarsb? Solheim wrote:
> I dont know if this is the right place to ask, but I am starting to run
> out of options.

It's the right place and it's been asked before :^)

Search for IDE in the mailing list archive:
	http://lists.parisc-linux.org/

e.g:
http://lists.parisc-linux.org/hypermail/parisc-linux/10959.html

> I own a HP B1000. I would like to place a pci ide controller in this
> machine and use IDE disks. Of course not to boot from, but as storage (I
> am aware of the benefits of SCSI over IDE so no need to point that out
> ^_^). I have asked several people on various irc-channels, googled for
> hours and posted on HP's "support" forum if this would work. I have
> gotten all answers from "No it wont" to "Yes it will". But the fact
> remains that I havent talked to anyone that can acutaly say they have
> tried it and succeeded/failed.

At least one person had something working on C3000:
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-August/020851.html

grant

> So I ask you! Will it work to put a pci ide controller in a HP B1000
> (Running Linux of course)? And if so, which chip(s) should I go for and
> are there any traps I should look out for?
> 
> (I realise this will, if it works, probably be slow as he** and so on,
> but I still want to try)
> 
> Appreciate any answers  :)
> 
> Stian
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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> Quick look at page 9-24 of the Kane book indicates that for d between +15
> and -16 we use format 42 and for d outside that range, we use format 3.
> Looks like nobody bothered to teach binutils about this longer form yet.

Yes, I hit this a couple of years ago in GCC.  Binutils needs to be
taught some new relocations to support the long fp displacements.

> Is it possible it's only available for PA2.0 processors?

This is only available in PA 2.0.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > > Is it possible it's only available for PA2.0 processors?
> (mmm I just forget to memtioned that I used -march=2.0)

-march=2.0 only affects the code generated by GCC.  How, would
it change an asm?

You must remember that GAS isn't really a general purpose assembler.
It's handles what GCC generates.  When you step outside those bounds
it may break.  Of course, a patch to add the missing relocations would
be welcome but no one has found time to do it yet.  This also involves
fixing the linker.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hello there

I dont know if this is the right place to ask, but I am starting to run
out of options.

I own a HP B1000. I would like to place a pci ide controller in this
machine and use IDE disks. Of course not to boot from, but as storage (I
am aware of the benefits of SCSI over IDE so no need to point that out
^_^). I have asked several people on various irc-channels, googled for
hours and posted on HP's "support" forum if this would work. I have
gotten all answers from "No it wont" to "Yes it will". But the fact
remains that I havent talked to anyone that can acutaly say they have
tried it and succeeded/failed.

So I ask you! Will it work to put a pci ide controller in a HP B1000
(Running Linux of course)? And if so, which chip(s) should I go for and
are there any traps I should look out for?

(I realise this will, if it works, probably be slow as he** and so on,
but I still want to try)

Appreciate any answers  :)

Stian
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Subject: [parisc-linux] Gcc bug or I missunderstand? [ftsd %fr22, 56(%sr0,
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Hello all,

In the memcpy.c stand this comment:
 * TODO:
[...]
 * - try not to use the post-increment address modifiers; they create add=
itional
 *   interlocks
[...]

I right a test case which is precompile as:
        { register double r1;
                __asm__ __volatile__ ( "\t" "fldd" " 0(" "%%sr0" ",%1),
%0\n" : "=3Df"(r1) : "r"(pds) : "r8");
        while (len >=3D 8*sizeof(double)) {




                __asm__ __volatile__ ( "1:\t" "fstd" " %1, " "0" "(" "%%s=
r0"
",%0)\n" : "+r"(pdd) : "f"(r1) : "r8");
                __asm__ __volatile__ ( "1:\t" "fstd" " %1, " "8" "(" "%%s=
r0"
",%0)\n" : "+r"(pdd) : "f"(r1) : "r8");
                __asm__ __volatile__ ( "1:\t" "fstd" " %1, " "16" "(" "%%=
sr0"
",%0)\n" : "+r"(pdd) : "f"(r1) : "r8");
                __asm__ __volatile__ ( "1:\t" "fstd" " %1, " "24" "(" "%%=
sr0"
",%0)\n" : "+r"(pdd) : "f"(r1) : "r8");

                __asm__ __volatile__ ( "1:\t" "fstd" " %1, " "32" "(" "%%=
sr0"
",%0)\n" : "+r"(pdd) : "f"(r1) : "r8");
                __asm__ __volatile__ ( "1:\t" "fstd" " %1, " "40" "(" "%%=
sr0"
",%0)\n" : "+r"(pdd) : "f"(r1) : "r8");
                __asm__ __volatile__ ( "1:\t" "fstd" " %1, " "48" "(" "%%=
sr0"
",%0)\n" : "+r"(pdd) : "f"(r1) : "r8");
                __asm__ __volatile__ ( "1:\t" "fstd" " %1, " "56" "(" "%%=
sr0"
",%0)\n" : "+r"(pdd) : "f"(r1) : "r8");
                pdd -=3D 8;
                len -=3D 8*sizeof(double);
        }
        };

it failed to build because:

gcc -save-temps -o tmset5 tmset5.c
tmset5.s: Assembler messages:
tmset5.s:122: Error: Invalid operands 
tmset5.s:130: Error: Invalid operands 
tmset5.s:138: Error: Invalid operands 
tmset5.s:146: Error: Invalid operands 
tmset5.s:154: Error: Invalid operands 
tmset5.s:162: Error: Invalid operands 

this tmset5.s looks like:
[...]
    101 .L11:
    102         ldw 56(%r3),%r20
    103         ldo 64(%r3),%r19
    104         fldds 0(%r19),%fr22
    105 #APP
    106         1:      fstd %fr22, 0(%sr0,%r20)
    107
    108 #NO_APP
    109         stw %r20,56(%r3)
    110         ldw 56(%r3),%r20
    111         ldo 64(%r3),%r19
    112         fldds 0(%r19),%fr22
    113 #APP
    114         1:      fstd %fr22, 8(%sr0,%r20)
    115
    116 #NO_APP
    117         stw %r20,56(%r3)
    118         ldw 56(%r3),%r20
    119         ldo 64(%r3),%r19
    120         fldds 0(%r19),%fr22
    121 #APP
    122         1:      fstd %fr22, 16(%sr0,%r20)
    123
    124 #NO_APP
    125         stw %r20,56(%r3)
    126         ldw 56(%r3),%r20
    127         ldo 64(%r3),%r19
    128         fldds 0(%r19),%fr22
    129 #APP
    130         1:      fstd %fr22, 24(%sr0,%r20)
    131
    132 #NO_APP
    133         stw %r20,56(%r3)
    134         ldw 56(%r3),%r20
    135         ldo 64(%r3),%r19
    136         fldds 0(%r19),%fr22
    137 #APP
    138         1:      fstd %fr22, 32(%sr0,%r20)
    139 
    140 #NO_APP
    141         stw %r20,56(%r3)
    142         ldw 56(%r3),%r20
    143         ldo 64(%r3),%r19
    144         fldds 0(%r19),%fr22
    145 #APP
    146         1:      fstd %fr22, 40(%sr0,%r20)
    147
    148 #NO_APP
    149         stw %r20,56(%r3)
    150         ldw 56(%r3),%r20
    151         ldo 64(%r3),%r19
    152         fldds 0(%r19),%fr22
    153 #APP
    154         1:      fstd %fr22, 48(%sr0,%r20)
    155 
    156 #NO_APP
    157         stw %r20,56(%r3)
    158         ldw 56(%r3),%r20
    159         ldo 64(%r3),%r19
    160         fldds 0(%r19),%fr22
    161 #APP
    162         1:      fstd %fr22, 56(%sr0,%r20)
    163
    164 #NO_APP
    165         stw %r20,56(%r3)
    166         ldw 56(%r3),%r19
    167         ldo -64(%r19),%r19
    168         stw %r19,56(%r3)
    169         ldw -44(%r3),%r19
    170         ldo -64(%r19),%r19
    171         stw %r19,-44(%r3)
    172         b,n .L9
[...]

in lines: 
    106         1:      fstd %fr22, 0(%sr0,%r20)
[...]
    114         1:      fstd %fr22, 8(%sr0,%r20)
[...]

no pb but for following ones:

[...]
    122         1:      fstd %fr22, 16(%sr0,%r20)
[...]
    130         1:      fstd %fr22, 24(%sr0,%r20)
[...]
    138         1:      fstd %fr22, 32(%sr0,%r20)
[...]
    146         1:      fstd %fr22, 40(%sr0,%r20)
[...]
    154         1:      fstd %fr22, 48(%sr0,%r20)
[...]
    162         1:      fstd %fr22, 56(%sr0,%r20)
[...]

it seems that if d>8 there is a pb?
Did I miss something?

Thanks in advance for help,
    Joel

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Xref: news.gmane.org gmane.linux.ports.parisc:22214

Hello all,

> 
> On Mon, 2004-11-22 at 08:10, Joel Soete wrote:
> > IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001016a7cc 000000=
001016a7d0
> >  IIR: 527401a0    ISR: 0000000000000000  IOR: 00000000000000d0
> >  CPU:        0   CR30: 000000004d5a0000 CR31: 00000000105f0000
> >  ORIG_R28: 000000001010d18c
> >  IAOQ[0]: update_one_process+0x74/0x168
> >  IAOQ[1]: update_one_process+0x78/0x168
> >  RP(r2): update_one_process+0x6c/0x168
> 
> As best I can tell, this is in kernel/timer.c here:
> 
>         if (p->signal && !unlikely(p->state & (EXIT_DEAD|EXIT_ZOMBIE))
> &&
>             psecs / HZ >=3D p->signal->rlim[RLIMIT_CPU].rlim_cur) {
> 
> The problem seems to be that p->signal is null, but it wasn't null when=

> the processor began the evaluation of the condition.  0xd0 is the 64 bi=
t
> offset of rlim[RLIMIT_CPU].rlim_cur.
> 
> If you look at the code, p->signal should be in r19 which is zero.
> 
> I have no explanation for this (other than some weird race in the signa=
l
> handling code somewhere).
> 
> James
> 
Could it be simply because in do_irq() we need to embrace action->handler=
()
with (may be more complex, if i read do_IRQ of ia64) spin_lock/unlock()?

Cheers,
    Joel

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On Sat, Dec 18, 2004 at 04:24:34PM +0000, Dr Gavin Seddon wrote:
> > 	http://www.parisc-linux.org/faq/graphics-howto.html
>
> I did as instructed.  After my penguin on boot I see 'stifb:unsupported
> gfx card'

Did you have two gfx cards installed?
If you only have one then like the driver says, it's not supported.
I thought the penguin on boot was an indicator the card was supported.

>  and when I startx I get 'AddScreen/ScreenInit failed for
> driver 0'.  Need I alter XF86Config-4 to a different monitor?  At the
> moment it is set to 'generic'.

The Section "Screen" will reference a "Device". The corresponding
Section "Device" should be where one indicates which device one meant.
I've never tried to to setup multiple cards and don't know what
card specifier looks like. I suppose it's either a /dev name or
a PCI device (same format as lspci provides).

Anyone else help with this?

thanks,
grant
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Subject: copy_user_page_asm suggested 64bit improvment [Was: [parisc-linux]
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Hello pa*,

Here is the last exchange I had with ggg:

Joel Soete wrote:
> 
> 
> Grant Grundler wrote:
> 
>> On Sat, Dec 18, 2004 at 09:38:34PM +0000, Joel Soete wrote:
>>
>>> interesting results:
>>> on b2k 64bit kernel:
>>> user    18m52.169s
>>> # including all those patch
>>> user    18m46.224s
>>> much better then clear_user_page_asm :-)
>>
>>
>>
>> "much better" is slightly overstated for a 0.62 % improvement.
>> That's a 7 second improvement over a 1132 second time frame.
>>
> Ok with the previous changes of clear_user_page_asm() the test case let 
> us expected some overall improvement (less ticks consumption :))
> but the final time results were absolutly desapointing istr:
> I test it on my b2k and here are the results:
> time make V=1 vmlinux (under 2.6.10-rc3-pa3-cvs)
> real 23m23.239s
> user 18m50.141s
> sys 4m21.203s
> 
> time make V=1 vmlinux (under 2.6.10-rc3-pa4-patch clear_user_...)
> real 23m18.552s
> user 18m50.534s
> sys 4m16.903s
> 
> :_(
> 
>> Sorry - I can't see what changed to bring about this improvement.
>> Can you point that out to me?
> 
> that make sense as you rejected previous patche, I will re-write it as 
> #ifdef __LP64__ so; NP
> 
>> I suspect there might be something else involved - perhaps this
>> difference is just within the noise of the test.
>>
> Ok I will make much more run ;-)
> 
>> BTW, I'll be on the road for the rest of the week...I won't be
>> able to pursue this until after I get back. If there are more
>> changes you want to the file, please post them to the list.
>>
> NP ;-) (have a nice travel and be carefull)
> 
> Thanks again for all,
>     Joel
> 
regarding this subject:
Joel Soete wrote:
 > Grant,
 >
 > still some more thought (and btw additional questions)
 >
 > As we choose to keep the same number of insn in this loop, I was looking
 > for something like:
 > #ifdef __LP64__
 > #define STR    std
 > #else
 > #define STR    stw
 > #endif
 >
 > but figure out that already exist and so why not using addtional
 > displacement #define and re-write loop like:
 > --- arch/parisc/kernel/pacache.S.New    2004-12-18 15:39:11.000000000 +0100
 > +++ arch/parisc/kernel/pacache.S    2004-12-18 19:19:53.862854692 +0100
 > @@ -288,6 +288,49 @@
 >
 >      .procend
 >
 > +#ifdef __LP64__
 > +    /* PREFETCH (Write) has not (yet) been proven to help here */
 > +/* #    define    PREFETCHW_OP    ldd        256(%0), %r0 */
 > +
 > +#define INCR    128    /* Loop's INCRement */
 > +#define LN    32    /* Loop's Number i.e. /* PAGE_SIZE/INCR == 32 */
 > +#define D0    0    /* 1st insn displacement */
 > +#define D1    8    /* 2d insn displacement */
 > +#define D2    16
 > +#define D3    24
 > +#define D4    32
 > +#define D5    40
 > +#define D6    48
 > +#define D7    56
 > +#define D8    64
 > +#define D9    72
 > +#define D10    80
 > +#define D11    88
 > +#define D12    96
 > +#define D13    104
 > +#define D14    112
 > +#define D15    120    /* last insn displacement */
 > +#else    /* !__LP64__ */
 > +#define INCR    64    /* Loop's INCRement */
 > +#define LN    64    /* Loop's Number i.e. /* PAGE_SIZE/INCR == 64 */
 > +#define D0    0    /* 1st insn displacement */
 > +#define D1    4    /* 2d insn displacement */
 > +#define D2    8
 > +#define D3    12
 > +#define D4    16
 > +#define D5    20
 > +#define D6    24
 > +#define D7    28
 > +#define D8    32
 > +#define D9    36
 > +#define D10    40
 > +#define D11    44
 > +#define D12    48
 > +#define D13    52
 > +#define D14    56
 > +#define D15    60    /* last insn displacement */
 > +#endif    /* __LP64__ */
 > +
 >      .export copy_user_page_asm,code
 >
 >  copy_user_page_asm:
 > @@ -502,55 +545,26 @@
 >
 >      pdtlb        0(%r28)
 >
 > -#ifdef __LP64__
 > -    ldi        32, %r1            /* PAGE_SIZE/128 == 32 */
 > -
 > -    /* PREFETCH (Write) has not (yet) been proven to help here */
 > -/* #define    PREFETCHW_OP    ldd        256(%0), %r0 */
 > +    ldi        LN, %r1            /* PAGE_SIZE/INCR == LN */
 >
 > -1:    std        %r0, 0(%r28)
 > -    std        %r0, 8(%r28)
 > -    std        %r0, 16(%r28)
 > -    std        %r0, 24(%r28)
 > -    std        %r0, 32(%r28)
 > -    std        %r0, 40(%r28)
 > -    std        %r0, 48(%r28)
 > -    std        %r0, 56(%r28)
 > -    std        %r0, 64(%r28)
 > -    std        %r0, 72(%r28)
 > -    std        %r0, 80(%r28)
 > -    std        %r0, 88(%r28)
 > -    std        %r0, 96(%r28)
 > -    std        %r0, 104(%r28)
 > -    std        %r0, 112(%r28)
 > -    std        %r0, 120(%r28)
 > +1:    STREG        %r0, D0(%r28)
 > +    STREG        %r0, D1(%r28)
 > +    STREG        %r0, D2(%r28)
 > +    STREG        %r0, D3(%r28)
 > +    STREG        %r0, D4(%r28)
 > +    STREG        %r0, D5(%r28)
 > +    STREG        %r0, D6(%r28)
 > +    STREG        %r0, D7(%r28)
 > +    STREG        %r0, D8(%r28)
 > +    STREG        %r0, D9(%r28)
 > +    STREG        %r0, D10(%r28)
 > +    STREG        %r0, D11(%r28)
 > +    STREG        %r0, D12(%r28)
 > +    STREG        %r0, D13(%r28)
 > +    STREG        %r0, D14(%r28)
 > +    STREG        %r0, D15(%r28)
 >      ADDIB>        -1, %r1, 1b
 > -    ldo        128(%r28), %r28
 > -
 > -#else    /* ! __LP64 */
 > -
 > -    ldi        64, %r1            /* PAGE_SIZE/64 == 64 */
 > -
 > -1:
 > -    stw        %r0, 0(%r28)
 > -    stw        %r0, 4(%r28)
 > -    stw        %r0, 8(%r28)
 > -    stw        %r0, 12(%r28)
 > -    stw        %r0, 16(%r28)
 > -    stw        %r0, 20(%r28)
 > -    stw        %r0, 24(%r28)
 > -    stw        %r0, 28(%r28)
 > -    stw        %r0, 32(%r28)
 > -    stw        %r0, 36(%r28)
 > -    stw        %r0, 40(%r28)
 > -    stw        %r0, 44(%r28)
 > -    stw        %r0, 48(%r28)
 > -    stw        %r0, 52(%r28)
 > -    stw        %r0, 56(%r28)
 > -    stw        %r0, 60(%r28)
 > -    ADDIB>        -1, %r1, 1b
 > -    ldo        64(%r28), %r28
 > -#endif    /* __LP64 */
 > +    ldo        INCR(%r28), %r28
 >
 >      bv        %r0(%r2)
 >      nop
 > =========> arch_parisc_kernel_pacache.S.diff4 <=========
this was definitely rejected:

Grant Grundler wrote:
 > On Sat, Dec 18, 2004 at 07:38:21PM +0000, Joel Soete wrote:
 >
 >>Grant,
 >>
 >>still some more thought (and btw additional questions)
 >>
 >>As we choose to keep the same number of insn in this loop, I was looking
 >>for something like:
 >>#ifdef __LP64__
 >>#define STR	std
 >>#else
 >>#define STR	stw
 >>#endif
 >>
 >>but figure out that already exist and so why not using addtional
 >>displacement #define and re-write loop like:
 >>--- arch/parisc/kernel/pacache.S.New	2004-12-18 15:39:11.000000000 +0100
 >>+++ arch/parisc/kernel/pacache.S	2004-12-18 19:19:53.862854692 +0100
 >>@@ -288,6 +288,49 @@
 >>
 >> 	.procend
 >>
 >>+#ifdef __LP64__
 >>+	/* PREFETCH (Write) has not (yet) been proven to help here */
 >>+/* #	define	PREFETCHW_OP	ldd		256(%0), %r0 */
 >>+
 >>+#define INCR	128	/* Loop's INCRement */
 >>+#define LN	32	/* Loop's Number i.e. /* PAGE_SIZE/INCR == 32 */
 >>+#define D0	0	/* 1st insn displacement */
 >>+#define D1	8	/* 2d insn displacement */
 >
 > ...
 >
 >
 > Sorry - definitely not. That just obscures whats going on.
 >
 > grant
 >

So will have to rewrite this one too
 >
 > mmm but copy_user_page_asm has the same structure and so why not using
 > the same schema:
 > --- arch/parisc/kernel/pacache.S.New1    2004-12-18 19:21:25.503229430
 > +0100
 > +++ arch/parisc/kernel/pacache.S    2004-12-18 19:43:33.184799992 +0100
 > @@ -338,7 +338,7 @@
 >      .callinfo NO_CALLS
 >      .entry
 >
 > -    ldi        64, %r1
 > +    ldi        LN, %r1
 >
 >      /*
 >       * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
 > @@ -349,43 +349,41 @@
 >       * use ldd/std on a 32 bit kernel.
 >       */
 >
 > -
 > -1:
 > -    ldw        0(%r25), %r19
 > -    ldw        4(%r25), %r20
 > -    ldw        8(%r25), %r21
 > -    ldw        12(%r25), %r22
 > -    stw        %r19, 0(%r26)
 > -    stw        %r20, 4(%r26)
 > -    stw        %r21, 8(%r26)
 > -    stw        %r22, 12(%r26)
 > -    ldw        16(%r25), %r19
 > -    ldw        20(%r25), %r20
 > -    ldw        24(%r25), %r21
 > -    ldw        28(%r25), %r22
 > -    stw        %r19, 16(%r26)
 > -    stw        %r20, 20(%r26)
 > -    stw        %r21, 24(%r26)
 > -    stw        %r22, 28(%r26)
 > -    ldw        32(%r25), %r19
 > -    ldw        36(%r25), %r20
 > -    ldw        40(%r25), %r21
 > -    ldw        44(%r25), %r22
 > -    stw        %r19, 32(%r26)
 > -    stw        %r20, 36(%r26)
 > -    stw        %r21, 40(%r26)
 > -    stw        %r22, 44(%r26)
 > -    ldw        48(%r25), %r19
 > -    ldw        52(%r25), %r20
 > -    ldw        56(%r25), %r21
 > -    ldw        60(%r25), %r22
 > -    stw        %r19, 48(%r26)
 > -    stw        %r20, 52(%r26)
 > -    stw        %r21, 56(%r26)
 > -    stw        %r22, 60(%r26)
 > -    ldo        64(%r26), %r26
 > +1:    LDREG        D0(%r25), %r19
 > +    LDREG        D1(%r25), %r20
 > +    LDREG        D2(%r25), %r21
 > +    LDREG        D3(%r25), %r22
 > +    STREG        %r19, D0(%r26)
 > +    STREG        %r20, D1(%r26)
 > +    STREG        %r21, D2(%r26)
 > +    STREG        %r22, D3(%r26)
 > +    LDREG        D4(%r25), %r19
 > +    LDREG        D5(%r25), %r20
 > +    LDREG        D6(%r25), %r21
 > +    LDREG        D7(%r25), %r22
 > +    STREG        %r19, D4(%r26)
 > +    STREG        %r20, D5(%r26)
 > +    STREG        %r21, D6(%r26)
 > +    STREG        %r22, D7(%r26)
 > +    LDREG        D8(%r25), %r19
 > +    LDREG        D9(%r25), %r20
 > +    LDREG        D10(%r25), %r21
 > +    LDREG        D11(%r25), %r22
 > +    STREG        %r19, D8(%r26)
 > +    STREG        %r20, D9(%r26)
 > +    STREG        %r21, D10(%r26)
 > +    STREG        %r22, D11(%r26)
 > +    LDREG        D12(%r25), %r19
 > +    LDREG        D13(%r25), %r20
 > +    LDREG        D14(%r25), %r21
 > +    LDREG        D15(%r25), %r22
 > +    STREG        %r19, D12(%r26)
 > +    STREG        %r20, D13(%r26)
 > +    STREG        %r21, D14(%r26)
 > +    STREG        %r22, D15(%r26)
 > +    ldo        INCR(%r26), %r26
 >      ADDIB>        -1, %r1, 1b
 > -    ldo        64(%r25), %r25
 > +    ldo        INCR(%r25), %r25
 >
 >      bv        %r0(%r2)
 >      nop
 > =========> arch_parisc_kernel_pacache.S.diff5 <=========
 >
 > And finaly why didn't we have to purge related dtlb entries as we did
 > (see #if 0 below) and we do in clear_user_page_asm:
 > --- arch/parisc/kernel/pacache.S.New2    2004-12-18 19:44:46.684937345
 > +0100
 > +++ arch/parisc/kernel/pacache.S    2004-12-18 20:19:51.113544409 +0100
 > @@ -338,6 +338,11 @@
 >      .callinfo NO_CALLS
 >      .entry
 >
 > +    /* Purge any old translations */
 > +
 > +    pdtlb        0(%r25)
 > +    pdtlb        0(%r26)
 > +
 >      ldi        LN, %r1
 >
 >      /*
 > =========> arch_parisc_kernel_pacache.S.diff6 <=========
 >
But what's about this one?

What you opinion?

Thanks,
	Joel

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Subject: lstrncpy_from_user() additional question [Was: [parisc-linux] test
	case for pa_memset() ;-)]
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Xref: news.gmane.org gmane.linux.ports.parisc:22217

Randolph,

I would like to get your opinion about the idea to re-write this lstrncpy_from_user() in c as you did with pa_memcpy() (may be 
easiest to maintain?)

Thanks,
	Joel


Randolph Chung wrote:
>>Any interest?
>>
>>This tmset3.c is a very draft and all advise will be welcome :-)
> 
> 
> Joel, i didn't notice earlier that you were working on memset.... i
> don't think you'll see much improvement over our current implementation.
> memcpy was a target for optimization because it used to copy
> *one-byte-at-a-time*, but our memset already knows about byte boundaries
> and tries to write more at a time when possible. i suspect you are
> seeing slower results with your implementation because of increased code
> size and branch hits. you're unlikely to see much improvement compared
> to the current version unless you either unroll the loop or do some more
> clever instruction scheduling.
> 
> the three routines in arch/parisc/lib/lusercopy.S are probably better
> targets for optimization because they are all doing one-byte-at-a-time
> operations, so there is more room for improvement.
> 
> randolph
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Hi all,

I just experiment the same pb on my c110:
EXT3-fs: mounted filesystem with ordered data mode.
Disabled Privacy Extensions on device 103ab688(lo)
eth0: link ok.
Backtrace:
  [<10262e70>] ncr_reset_bus+0x50/0x110
  [<10267094>] ncr53c8xx_bus_reset+0x30/0x7c
  [<1025988c>] scsi_try_bus_reset+0x5c/0xd0
  [<10259a3c>] scsi_eh_bus_reset+0x6c/0x118
  [<1025a02c>] scsi_eh_ready_devs+0x64/0x9c
  [<1025a1a8>] scsi_unjam_host+0x7c/0xc0
  [<1025a2a4>] scsi_error_handler+0xb8/0x100
  [<1010bc5c>] ret_from_kernel_thread+0x1c/0x24
High Priority Machine Check (HPMC): Code=1 regs=1038e080 (Addr=00000000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111001100001110 Not tainted
r00-03  00000000 103ac010 10262b44 0000000f
r04-07  2ff3c000 00000000 00000002 103ac010
r08-11  00000000 2ff38110 b5a95f80 1044bb00
r12-15  2fe7d278 00000000 1039d010 1044b810
r16-19  f00010f4 f00000ac f00000a4 f3f8c80e
r20-23  00000001 0000000f 0000000e 00000031
r24-27  00000002 f3f8c800 38200002 1038b010
r28-31  00002003 7b958900 2ff38380 1025988c
sr0-3   00000000 00000000 00000000 00000003
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10262c80 10262c84
  IIR: 37340018    ISR: 00000000  IOR: f3f8c80c
  CPU:        0   CR30: 2ff38000 CR31: 103e4000
  ORIG_R28: 00000000
  IAOQ[0]: ncr_reset_scsi_bus+0x190/0x2f8
  IAOQ[1]: ncr_reset_scsi_bus+0x194/0x2f8
  RP(r2): ncr_reset_scsi_bus+0x54/0x2f8
Kernel panic - not syncing: High Priority Machine Check (HPMC)
  <0>Rebooting in 120 seconds..

with:
# uname -a
Linux hpalin 2.6.10-rc3-pa8-c110 #2 Sat Dec 18 19:00:49 CET 2004 parisc GNU/Linx

fwiw: this same kernel was booting fine yesterday evening and as well after this panic???

Any idea?

Joel

Matthew Wilcox wrote:
> On Sat, Dec 11, 2004 at 12:06:45PM +0000, Joel Soete wrote:
> 
>>>A K200 iirc?
>>
>>Sorry for auto-reply but I go back to your previous mail and compare your 
>>config file with mine and noticed some details:
>>
>>1) may be you need hppb bus option ON; the diff shows me:
>>--- k200-hp-debian-1_config	2004-12-11 12:38:46.307780990 +0100
>>+++ config-2.6.10-rc3-pa5	2004-12-11 12:36:59.434552100 +0100
>>[...]
>>-# CONFIG_HPPB is not set
>>+CONFIG_HPPB=y
> 
> 
> Shouldn't make any difference; the ncr720 is on the GSC bus.
> http://www.openpa.net/systems/hawk.html shows the K class does have HPPB
> slots, so I would suggest that you both have the HPPB option set wrongly;
> there is no HPPB on the C class workstations, but there is for K class.
> 
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Hi,

Your patch works great. I've put it into Gentoo and we now have mozilla
and firefox working ! Thanks.

However, your Makefile have a little error. On box running 64bit kernel,
OS_TEST will be parisc64 and the Makefile will use the unsuported stuff.

Maybe you should replace 
ifeq ($(OS_TEST), parisc)
by this :
ifneq (,$(filter parisc parisc64,$(OS_TEST)))

hth,


On Sat, 18 Dec 2004 00:58:40 +0100 (MET)
Ivar <orskaug@stud.ntnu.no> wrote:

> Please note that this patch is VERY preliminary - thus, any feedbak is
> welcome,
> 
> 
> diff -N -u ./mozilla/xpcom/reflect/xptcall/src/md/unix/Makefile.in
> /home/user/mozilla/xpcom/reflect/xptcall/src/md/unix/Makefile.in---
> ./mozilla/xpcom/reflect/xptcall/src/md/unix/Makefile.in	2004-04-22 22:50:05.000000000 +0200+++
> /home/user/mozilla/xpcom/reflect/xptcall/src/md/unix/Makefile.in	2004-12-18 00:00:29.807917680 +0100@@ -167,6 +167,19 @@
>  endif
>  endif
> 
> +#
> +# Linux/HPPA/GCC
> +#
> +ifeq ($(OS_ARCH),Linux)
> +ifeq ($(OS_TEST), parisc)
> +ifeq ($(CC),gcc)
> +CPPSRCS		:= xptcinvoke_pa32.cpp xptcstubs_pa32.cpp
> +ASFILES		:= xptcstubs_asm_parisc_linux.s
> xptcinvoke_asm_parisc_linux.s
> +endif
> +endif
> +endif
> +
> +
>  ####################################################################
>  ###
>  # M68k
>  ####################################################################
>  ###


-- 
Guy Martin
Gentoo Linux - HPPA port Lead / IPv6 team
Lug Charleroi (Belgium)

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i was debugging a DirectFB build failure when i noticed that _syscall0() 
doesnt seem to be quite right ...

going by this little bit of code (see gettid(2) for info):
#include <sys/types.h>
#include <linux/unistd.h>
#include <errno.h>
_syscall0(pid_t,gettid)
pid_t gettid(void);
int main() { return 0; }

it fails to compile :(
gettid.c: In function `gettid':
gettid.c:5: error: parse error before ')' token

tried with gcc-3.3.5 and gcc-3.4.3 ...
using linux-2.6.8.1 headers here, but the define for _syscall0() doesnt seem 
to be different in 2.4 or 2.6 ... so what am i missing here ? :)
-mike
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On Saturday 25 December 2004 02:17 am, Mike Frysinger wrote:
> gettid.c: In function `gettid':
> gettid.c:5: error: parse error before ')' token

ok, the error is K_INLINE_SYSCALL in asm/unistd.h in the last if statement:

         __sys_res = (long)__res;                \
     }                               \
     if ( (unsigned long)__sys_res >= (unsigned long)-4095 ){    \
-        errno = -__sys_res);                     \
+        errno = -__sys_res;                     \
         __sys_res = -1;                     \
     }                               \
     __sys_res;                          \

that assignment to errno ... the parentheses is unbalanced ... i guess it 
could just be removed altogether :)
-mike
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On Sun, Dec 26, 2004 at 04:26:09AM -0500, Mike Frysinger wrote:
> -        errno = -__sys_res);                     \
> +        errno = -__sys_res;                     \
> that assignment to errno ... the parentheses is unbalanced ... i guess it 
> could just be removed altogether :)

Checked in.  Thanks!

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Mon, 2004-12-27 at 10:40 +0000, Joel Soete wrote:
> Should be why it was removed but as far as I didn't find any explanation (that's obvious: that's nearly impossible to explain all 
> details of implementation ;-)

I haven't time to look through the patch, but I can explain what the
pdtlb's are about in pacache.S.

Both copy_user_page_asm and __clear_user_page_asm use something called
the tmpalias mapping.  This is a 8MB reserved area that's used to prime
the user space cache.  What you do is to set up a temporary mapping for
the target of the copy which is congruent to the user space address
somewhere in the tmpalias region.  Then when you do the copy, the user
alias is automatically up to date as well (because the cache sees the
collision by virtue of its congruence properties).

It's a nice idea, but we've never been able to make it work in practise,
because the user page we're copying can be an executable page, and this
scheme only makes the d-cache correct.  If we had a way of telling
whether it's a data page or and instruction page, we could make it work.
That's why the mechanism is #if 0'd out.

On the other hand, we can use it for clear_user_page, because no-one
ever wants to clear an executable page before returning it to the user.

James


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On Tue, Dec 21, 2004 at 02:37:47PM +0100, Joel Soete wrote:
> Hello all,

Joel,
I trim your postings to only include the parts I need to respond to.
Could you please do the same?

I hate having to scroll down pages of stuff to get to your comment.
That's probably why no one else responded.


> As promised, here is a cleaner (?)  patch:
> --- arch/parisc/kernel/pacache.S.Orig	2004-12-20 08:28:23.000000000 +0100
> +++ arch/parisc/kernel/pacache.S	2004-12-20 14:49:35.000000000 +0100
> @@ -295,7 +295,52 @@
>  	.callinfo NO_CALLS
>  	.entry
> 
> -	ldi		64, %r1
> +	pdtlb		0(%r25)
> +	pdtlb		0(%r26)

Sorry - I missed why the pdtlb needs to be added.
Could you explain?

Won't the pdtlb guarantee at least one trap per page copied?
I would hope we guarantee the D-TLB is "clean" when calling this function.

> +#ifdef __LP64__
> +
> +	ldi		32, %r1			/* PAGE_SIZE/128 == 32 */
> +
> +1:	ldd		0(%r25), %r19
> +	ldd		8(%r25), %r20
> +	ldd		16(%r25), %r21
> +	ldd		24(%r25), %r22
> +	std		%r19, 0(%r26)
> +	std		%r20, 8(%r26)
> +	std		%r21, 16(%r26)
> +	std		%r22, 24(%r26)

This looks good.

PA2.0 can retire 2 loads and 2 stores per cycle IFF there are no dependencies.
can be executed in one cycle.

That means we want something like this:

+1:	ldd		0(%r25), %r19
+	ldd		8(%r25), %r20
+	ldd		16(%r25), %r21
+	ldd		24(%r25), %r22
+	std		%r19, 0(%r26)
+	std		%r20, 8(%r26)
+	ldd		32(%r25), %r19
+	ldd		40(%r25), %r20
+	std		%r21, 16(%r26)
+	std		%r22, 24(%r26)
+	ldd		48(%r25), %r21
+	ldd		56(%r25), %r22
+	std		%r19, 32(%r26)
+	std		%r20, 40(%r26)
...
+	ldd		112(%r25), %r21
+	ldd		120(%r25), %r22
+	std		%r19, 96(%r26)
+	std		%r20, 104(%r26)
+	ldo		128(%r25), %r25
+	std		%r21, 112(%r26)
+	std		%r22, 120(%r26)
+	ADDIB>		-1, %r1, 1b
+	ldo		128(%r26), %r26
...

[ Note that I've moved the "ldo" around as well!]

More distance between the "ldd %rX" and the corresponding
"std %rX" is generally a good thing.
This routine could use more registers in the loop to get more "distance".

It costs us 1 cycle to save two registers on the stack.
Once the data is in L1-Cache, IFF the CPU needs more than one cycle
to retire successive loads, we gain several cycles assuming additional
register pairs are used multiply times per loop.
Anyone know how many cycles ldd from L1 takes?

I expect gcc encodes those times so it can schedule stuff optimally.
But I've forgotten where to find the PA2.0 scheduling magic.
It might be worth just letting gcc unroll the loop for us since
SR0 (kernel) is implied in all the ldd/std instructions.


> -	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
> -	extrd,u		%r23,56,32, %r23		/* convert phys addr to tlb insert format */
> -	depd		%r24,63,22, %r28		/* Form aliased virtual address 'to' */
> +	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
> +	extrd,u		%r23,56,32, %r23	/* convert phys addr to tlb insert format */
> +	depd		%r24,63,22, %r28	/* Form aliased virtual address 'to' */

Please post white space changes as seperate patches.


> the loop used:
> export i=0 ; while [ $i -le 10 ] ; do make clean ; make oldconfig ; readprofile

3 to 5 iterations are sufficient for me (since they take so long).

> -r ; time make vmlinux ; readprofile >> /var/logs/prof.doc; i=$((i+1)) ;
> done 2>&1 | tee /var/logs/k-loop1
> 
> * with original 2.6.10-rc3-pa8 running kernel
> # grep "^user" k-loop1

Please use "^sys" or "^real".
"user" time is only number that should NOT change with this patch.

> # grep copy_user_page_asm prof.doc
>   3254 copy_user_page_asm                        20.3375
>   3273 copy_user_page_asm                        20.4563
...

> * with 2.6.10-rc3-pa8 + patch and without "pdtlb		0(%r2[56])"
...
> # grep copy_user_page_asm prof.doc
>   1818 copy_user_page_asm                        11.3625
>   1763 copy_user_page_asm                        11.0188
>   1785 copy_user_page_asm                        11.1562
...

This is clearly goodness.

> * with 2.6.10-rc3-pa8 + full patch
...
> # grep copy_user_page_asm prof.doc
>   1894 copy_user_page_asm                        11.8375
>   1972 copy_user_page_asm                        12.3250
>   1975 copy_user_page_asm                        12.3438
>   1880 copy_user_page_asm                        11.7500
>   1923 copy_user_page_asm                        12.0188

I expect extra traps and/or time spent ordering the TLB operations.
pdtlb is costing about 8% performance in this routine.
I definitely want a clear explanation before adding this.

> So the main interest is to reduce the number of clock ticks :-)

Yes. :^)


thanks,
grant
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Subject: Re: copy_user_page_asm suggested 64bit improvment [Was: [parisc-linux]
	clear user page test]
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Grant Grundler wrote:
> On Tue, Dec 21, 2004 at 02:37:47PM +0100, Joel Soete wrote:
> 
>>Hello all,
> 
> 
> Joel,
> I trim your postings to only include the parts I need to respond to.
> Could you please do the same?
> 
Apologies, I would just like to be as detailed as possible for the others who didn't follow our previous mail exchange before :-(

> I hate having to scroll down pages of stuff to get to your comment.
> That's probably why no one else responded.
> 
I understand that make stuff too noisy

> 
> 
>>As promised, here is a cleaner (?)  patch:
>>--- arch/parisc/kernel/pacache.S.Orig	2004-12-20 08:28:23.000000000 +0100
>>+++ arch/parisc/kernel/pacache.S	2004-12-20 14:49:35.000000000 +0100
>>@@ -295,7 +295,52 @@
>> 	.callinfo NO_CALLS
>> 	.entry
>>
>>-	ldi		64, %r1
>>+	pdtlb		0(%r25)
>>+	pdtlb		0(%r26)
> 
> 
> Sorry - I missed why the pdtlb needs to be added.
> Could you explain?

Sorry no, that was a question of mine:
the previous inplementation of copy_user_page_asm() (between #if 0 ... #endif below in the code) started with:
[...]
         /* Purge any old translations */

         pdtlb           0(%r28)
         pdtlb           0(%r29)

         ldi             64, %r1
[...]

and we do the same in __clear_user_page_asm()
[...]
         /* Purge any old translation */

         pdtlb           0(%r28)

[...]
> 
> Won't the pdtlb guarantee at least one trap per page copied?
> I would hope we guarantee the D-TLB is "clean" when calling this function.
> 
Should be why it was removed but as far as I didn't find any explanation (that's obvious: that's nearly impossible to explain all 
details of implementation ;-)

> 
>>+#ifdef __LP64__
>>+
>>+	ldi		32, %r1			/* PAGE_SIZE/128 == 32 */
>>+
>>+1:	ldd		0(%r25), %r19
>>+	ldd		8(%r25), %r20
>>+	ldd		16(%r25), %r21
>>+	ldd		24(%r25), %r22
>>+	std		%r19, 0(%r26)
>>+	std		%r20, 8(%r26)
[...]
> 
> This looks good.
> 
> PA2.0 can retire 2 loads and 2 stores per cycle IFF there are no dependencies.
> can be executed in one cycle.
> 
> That means we want something like this:
> 
> +1:	ldd		0(%r25), %r19
> +	ldd		8(%r25), %r20
> +	ldd		16(%r25), %r21
> +	ldd		24(%r25), %r22
> +	std		%r19, 0(%r26)
> +	std		%r20, 8(%r26)
> +	ldd		32(%r25), %r19
> +	ldd		40(%r25), %r20
[...]
> +	ldo		128(%r25), %r25
> +	std		%r21, 112(%r26)
> +	std		%r22, 120(%r26)
> +	ADDIB>		-1, %r1, 1b
> +	ldo		128(%r26), %r26
> ...
> 
> [ Note that I've moved the "ldo" around as well!]
> 
> More distance between the "ldd %rX" and the corresponding
> "std %rX" is generally a good thing.
> This routine could use more registers in the loop to get more "distance".
Ok that was another possibility: I trust that we can use r23, r24 as far as:
     r23-r26: these are arg3-arg0, i.e. you can use them if you
         don't care about the values that were passed in anymore.

but not more of r3-r18 because:
r3-r18,r27,r30 need to be saved and restored. r3-r18 are just
     general purpose registers. [...]

> 
> It costs us 1 cycle to save two registers on the stack.
> Once the data is in L1-Cache, IFF the CPU needs more than one cycle
> to retire successive loads, we gain several cycles assuming additional
> register pairs are used multiply times per loop.
Well that (cache management) is still far beyond my skill :-(

[...]
>>-	extrd,u		%r26,56,32, %r26		/* convert phys addr to tlb insert format */
...
>>+	extrd,u		%r26,56,32, %r26	/* convert phys addr to tlb insert format */
> 
> Please post white space changes as seperate patches.
> 
oops my bad (apologies)
> 
[...]
>>* with original 2.6.10-rc3-pa8 running kernel
>># grep "^user" k-loop1
> 
> Please use "^sys" or "^real".
> "user" time is only number that should NOT change with this patch.
> 
I will try to recover those info
> 
[...]
> 
>>So the main interest is to reduce the number of clock ticks :-)
> 
> 
> Yes. :^)
> 
Thanks for your patience and relevant remarks, I will come back we more material soon ;-)

Joel
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Subject: Re: copy_user_page_asm suggested 64bit improvment [Was: [parisc-linux]
	clear user page test]
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Joel Soete wrote:
> 
> 
> Grant Grundler wrote:
> 
>> On Tue, Dec 21, 2004 at 02:37:47PM +0100, Joel Soete wrote:
>>
[...]
>>> * with original 2.6.10-rc3-pa8 running kernel
>>> # grep "^user" k-loop1
>>
>>
>> Please use "^sys" or "^real".
>> "user" time is only number that should NOT change with this patch.
>>
> I will try to recover those info
> 
Those results was:
k-loop1 (i.e. cvs 2.6.10-rc3-pa8)
real	23m7.594s
user	18m47.768s
sys	4m2.585s

real	22m53.506s
user	18m47.400s
sys	4m0.321s

real	22m54.599s
user	18m47.492s
sys	4m0.226s

real	22m53.410s
user	18m48.205s
sys	3m59.351s

k-loop2 (i.e. cvs 2.6.10-rc3-pa8 + patch without pdtlb)
real	23m4.170s
user	18m47.511s
sys	4m0.654s

real	22m59.651s
user	18m51.133s
sys	3m58.969s

real	23m0.391s
user	18m50.908s
sys	3m59.588s

real	22m59.401s
user	18m51.090s
sys	3m59.673s

k-loop3 (i.e. cvs 2.6.10-rc3-pa8 + full patch)
real	23m28.521s
user	18m53.815s
sys	3m57.967s

real	23m32.696s
user	18m54.045s
sys	3m58.598s

real	23m28.981s
user	18m54.774s
sys	3m58.128s

real	23m30.631s
user	18m54.405s
sys	3m58.974s


hth,
	Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:22227



Joel Soete wrote:
> 
> 
> Grant Grundler wrote:
> 
>> On Tue, Dec 21, 2004 at 02:37:47PM +0100, Joel Soete wrote:
>>
>>> Hello all,
>>
[...]
>> This routine could use more registers in the loop to get more "distance".
> 
> Ok that was another possibility: I trust that we can use r23, r24 as far 
> as:
>     r23-r26: these are arg3-arg0, i.e. you can use them if you
>         don't care about the values that were passed in anymore.
> 
Here is a first writing just to be sure I well understand:
#ifdef __LP64__

         ldi             32, %r1                 /* PAGE_SIZE/128 == 32 */

1:      ldd             0(%r25), %r19
         ldd             8(%r25), %r20
         ldd             16(%r25), %r21
         ldd             24(%r25), %r22
         ldd             32(%r25), %r23
         ldd             40(%r25), %r24
         std             %r19, 0(%r26)
         std             %r20, 8(%r26)
         std             %r21, 16(%r26)
         std             %r22, 24(%r26)
         std             %r23, 32(%r26)
         std             %r24, 40(%r26)
         ldd             48(%r25), %r19
         ldd             56(%r25), %r20
         ldd             64(%r25), %r21
         ldd             72(%r25), %r22
         ldd             80(%r25), %r23
         ldd             88(%r25), %r24
         std             %r19, 48(%r26)
         std             %r20, 56(%r26)
         std             %r21, 64(%r26)
         std             %r22, 72(%r26)
         std             %r23, 80(%r26)
         std             %r24, 88(%r26)
         ldd             96(%r25), %r19
         ldd             104(%r25), %r20
         ldd             112(%r25), %r21
         ldd             120(%r25), %r22
         std             %r19, 96(%r26)
         std             %r20, 104(%r26)
         std             %r21, 112(%r26)
         std             %r22, 120(%r26)
         ldo             128(%r26), %r26
         ADDIB>          -1, %r1, 1b
         ldo             128(%r25), %r25

#else   /* !__LP64__ */

just have to re-arrange with distance between couple std/ldd?

What do you think?

Joel
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: copy_user_page_asm suggested 64bit improvment
	(Test case)
Date: Tue, 28 Dec 2004 16:25:45 +0000
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This is a multi-part message in MIME format.
--------------090506050100010806040901
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A test case may can help better to show improvement:

gcc -O2 -o cpup0 cpup0.c
gcc -march=2.0 -O2 -DLP64 -o cpup1 cpup0.c
gcc -march=2.0 -O2 -DLP64 -DV1 -o cpup2 cpup0.c
gcc -march=2.0 -O2 -DLP64 -DV2 -o cpup3 cpup0.c

Linux patst006 2.6.10-rc3-pa4-n4kmp #3 SMP Fri Dec 10 13:45:46 CET 2004 parisc64 GNU/Linux

# time ./cpup0 ; time ./cpup1; time ./cpup2 ; time ./cpup3

real	0m2.294s
user	0m0.226s
sys	0m2.068s

real	0m2.213s
user	0m0.140s
sys	0m2.074s

real	0m2.217s
user	0m0.108s
sys	0m2.110s

real	0m2.208s
user	0m0.108s
sys	0m2.100s
# time ./cpup0 ; time ./cpup1; time ./cpup2 ; time ./cpup3

real	0m2.316s
user	0m0.197s
sys	0m2.119s

real	0m2.217s
user	0m0.117s
sys	0m2.101s

real	0m2.203s
user	0m0.119s
sys	0m2.084s

real	0m2.205s
user	0m0.126s
sys	0m2.079s
# time ./cpup0 ; time ./cpup1; time ./cpup2 ; time ./cpup3

real	0m2.316s
user	0m0.194s
sys	0m2.122s

real	0m2.211s
user	0m0.126s
sys	0m2.086s

real	0m2.208s
user	0m0.106s
sys	0m2.102s

real	0m2.217s
user	0m0.113s
sys	0m2.105s
# time ./cpup0 ; time ./cpup1; time ./cpup2 ; time ./cpup3

real	0m2.311s
user	0m0.219s
sys	0m2.093s

real	0m2.222s
user	0m0.141s
sys	0m2.082s

real	0m2.207s
user	0m0.115s
sys	0m2.093s

real	0m2.208s
user	0m0.117s
sys	0m2.091s
# time ./cpup0 ; time ./cpup1; time ./cpup2 ; time ./cpup3

real	0m2.310s
user	0m0.205s
sys	0m2.105s

real	0m2.213s
user	0m0.104s
sys	0m2.109s

real	0m2.207s
user	0m0.115s
sys	0m2.092s

real	0m2.205s
user	0m0.108s
sys	0m2.096s

I would like here to know if the order could have importance?

# time ./cpup0 ; time ./cpup1; time ./cpup3 ; time ./cpup2

real	0m2.294s
user	0m0.196s
sys	0m2.100s

real	0m2.221s
user	0m0.111s
sys	0m2.111s

real	0m2.226s
user	0m0.097s
sys	0m2.130s

real	0m2.208s
user	0m0.107s
sys	0m2.101s
# time ./cpup0 ; time ./cpup3; time ./cpup2 ; time ./cpup1

real	0m2.302s
user	0m0.200s
sys	0m2.102s

real	0m2.206s
user	0m0.110s
sys	0m2.097s

real	0m2.213s
user	0m0.108s
sys	0m2.106s

real	0m2.214s
user	0m0.123s
sys	0m2.092s
# time ./cpup3 ; time ./cpup2; time ./cpup1 ; time ./cpup0

real	0m2.209s
user	0m0.104s
sys	0m2.105s

real	0m2.221s
user	0m0.115s
sys	0m2.106s

real	0m2.227s
user	0m0.111s
sys	0m2.116s

real	0m2.296s
user	0m0.212s
sys	0m2.085s

May be more improvement in 'more register used' (i.e. V2 and cpup3)?

Joel

--------------090506050100010806040901
Content-Type: text/x-csrc;
 name="cpup0.c"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline;
 filename="cpup0.c"


#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <asm/page.h>

void __copy_user_page_asm(void *to, void *from)
{
	register unsigned long __to __asm__ ("r26") =3D  (unsigned long)to;
	register unsigned long __from __asm__ ("r25") =3D  (unsigned long)from;

#ifdef LP64

asm volatile ("ldi		32, %%r1\n"	/* PAGE_SIZE/128 =3D=3D 32 */
#if V2
"1:	ldd		0(%0), %%r19\n"
"	ldd		8(%0), %%r20\n"
"	ldd		16(%0), %%r21\n"
"	ldd		24(%0), %%r22\n"
"	std		%%r19, 0(%1)\n"
"	std		%%r20, 8(%1)\n"
"	ldd		32(%0), %%r23\n"
"	ldd		40(%0), %%r24\n"
"	std		%%r21, 16(%1)\n"
"	std		%%r22, 24(%1)\n"
"	ldd		48(%0), %%r19\n"
"	ldd		56(%0), %%r20\n"
"	std		%%r23, 32(%1)\n"
"	std		%%r24, 40(%1)\n"
"	ldd		64(%0), %%r21\n"
"	ldd		72(%0), %%r22\n"
"	std		%%r19, 48(%1)\n"
"	std		%%r20, 56(%1)\n"
"	ldd		80(%0), %%r23\n"
"	ldd		88(%0), %%r24\n"
"	std		%%r21, 64(%1)\n"
"	std		%%r22, 72(%1)\n"
"	ldd		96(%0), %%r19\n"
"	ldd		104(%0), %%r20\n"
"	std		%%r23, 80(%1)\n"
"	std		%%r24, 88(%1)\n"
"	ldd		112(%0), %%r21\n"
"	ldd		120(%0), %%r22\n"
"	std		%%r19, 96(%1)\n"
"	std		%%r20, 104(%1)\n"
"	ldo		128(%0), %0\n"
"	std		%%r21, 112(%1)\n"
"	std		%%r22, 120(%1)\n"
"	addib,>		-1, %%r1, 1b\n"
"	ldo		128(%1), %1"
#else	/* !V2 */=20
"1:	ldd		0(%0), %%r19\n"
"	ldd		8(%0), %%r20\n"
"	ldd		16(%0), %%r21\n"
"	ldd		24(%0), %%r22\n"
"	std		%%r19, 0(%1)\n"
"	std		%%r20, 8(%1)\n"
#ifndef V1
"	std		%%r21, 16(%1)\n"
"	std		%%r22, 24(%1)\n"
"	ldd		32(%0), %%r19\n"
"	ldd		40(%0), %%r20\n"
"	ldd		48(%0), %%r21\n"
"	ldd		56(%0), %%r22\n"
"	std		%%r19, 32(%1)\n"
"	std		%%r20, 40(%1)\n"
"	std		%%r21, 48(%1)\n"
"	std		%%r22, 56(%1)\n"
"	ldd		64(%0), %%r19\n"
"	ldd		72(%0), %%r20\n"
"	ldd		80(%0), %%r21\n"
"	ldd		88(%0), %%r22\n"
"	std		%%r19, 64(%1)\n"
"	std		%%r20, 72(%1)\n"
"	std		%%r21, 80(%1)\n"
"	std		%%r22, 88(%1)\n"
"	ldd		96(%0), %%r19\n"
"	ldd		104(%0), %%r20\n"
"	ldd		112(%0), %%r21\n"
"	ldd		120(%0), %%r22\n"
"	std		%%r19, 96(%1)\n"
"	std		%%r20, 104(%1)\n"
"	std		%%r21, 112(%1)\n"
"	std		%%r22, 120(%1)\n"
"	ldo		128(%1), %1\n"
"	addib,>		-1, %%r1, 1b\n"
"	ldo		128(%0), %0"
#else	/* V1 */
"	ldd		32(%0), %%r19\n"
"	ldd		40(%0), %%r20\n"
"	std		%%r21, 16(%1)\n"
"	std		%%r22, 24(%1)\n"
"	ldd		48(%0), %%r21\n"
"	ldd		56(%0), %%r22\n"
"	std		%%r19, 32(%1)\n"
"	std		%%r20, 40(%1)\n"
"	ldd		64(%0), %%r19\n"
"	ldd		72(%0), %%r20\n"
"	std		%%r21, 48(%1)\n"
"	std		%%r22, 56(%1)\n"
"	ldd		80(%0), %%r21\n"
"	ldd		88(%0), %%r22\n"
"	std		%%r19, 64(%1)\n"
"	std		%%r20, 72(%1)\n"
"	ldd		96(%0), %%r19\n"
"	ldd		104(%0), %%r20\n"
"	std		%%r21, 80(%1)\n"
"	std		%%r22, 88(%1)\n"
"	ldd		112(%0), %%r21\n"
"	ldd		120(%0), %%r22\n"
"	std		%%r19, 96(%1)\n"
"	std		%%r20, 104(%1)\n"
"	ldo		128(%0), %0\n"
"	std		%%r21, 112(%1)\n"
"	std		%%r22, 120(%1)\n"
"	addib,>		-1, %%r1, 1b\n"
"	ldo		128(%1), %1"
#endif	/* V1 */

#endif	/* 0 */

#else	/* !__LP64__ */

asm volatile ("ldi		64, %%r1\n"
"1:	ldw		0(%0), %%r19\n"
"	ldw		4(%0), %%r20\n"
"	ldw		8(%0), %%r21\n"
"	ldw		12(%0), %%r22\n"
"	stw		%%r19, 0(%1)\n"
"	stw		%%r20, 4(%1)\n"
"	stw		%%r21, 8(%1)\n"
"	stw		%%r22, 12(%1)\n"
"	ldw		16(%0), %%r19\n"
"	ldw		20(%0), %%r20\n"
"	ldw		24(%0), %%r21\n"
"	ldw		28(%0), %%r22\n"
"	stw		%%r19, 16(%1)\n"
"	stw		%%r20, 20(%1)\n"
"	stw		%%r21, 24(%1)\n"
"	stw		%%r22, 28(%1)\n"
"	ldw		32(%0), %%r19\n"
"	ldw		36(%0), %%r20\n"
"	ldw		40(%0), %%r21\n"
"	ldw		44(%0), %%r22\n"
"	stw		%%r19, 32(%1)\n"
"	stw		%%r20, 36(%1)\n"
"	stw		%%r21, 40(%1)\n"
"	stw		%%r22, 44(%1)\n"
"	ldw		48(%0), %%r19\n"
"	ldw		52(%0), %%r20\n"
"	ldw		56(%0), %%r21\n"
"	ldw		60(%0), %%r22\n"
"	stw		%%r19, 48(%1)\n"
"	stw		%%r20, 52(%1)\n"
"	stw		%%r21, 56(%1)\n"
"	stw		%%r22, 60(%1)\n"
"	ldo		64(%1), %1\n"
"	addib,>		-1, %%r1, 1b\n"
"	ldo		64(%0), %0"
#endif	/* __LP64__ */
	:	=09
	: "r"(__from), "r"(__to) );
}

/*=20
#define	INIT	1
#define	DEBUG	1
 */

#define BUFFSIZE	(1024*1024*256)
#define PPB		(BUFFSIZE/PAGE_SIZE)	/* Pages Per Buff */


int main(int argc, char * * argv, char * * env)
{
	char MemSrc[] =3D "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzA=
BCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUV=
WXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopq=
rstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKL=
MNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefg=
hijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzAB=
CDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVW=
XYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqr=
stuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLM=
NOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefgh=
ijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABC=
DEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWX=
YZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrs=
tuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMN=
OPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi=
jklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCD=
EFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXY=
ZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrst=
uvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNO=
PQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghij=
klmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDE=
FGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ=
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstu=
vwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP=
QRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijk=
lmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEF=
GHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZa=
bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuv=
wxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQ=
RSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijkl=
mnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFG=
HIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZab=
cdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvw=
xyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQR=
STUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklm=
nopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGH=
IJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabc=
defghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwx=
yzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRS=
TUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmn=
opqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHI=
JKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcd=
efghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxy=
zABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRST=
UVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmno=
pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJ=
KLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcde=
fghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz=
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTU=
VWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnop=
qrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJK=
LMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdef=
ghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzA=
BCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUV=
WXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopq=
rstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKL=
MNOPQRSTUVWXYZabcdefghijklmn" ;

	char *MemDst;
	int i, j, k;


	MemDst =3D malloc(BUFFSIZE);
	for (j =3D 0; j < PPB ; j++) {
		__copy_user_page_asm(MemDst+(j*PAGE_SIZE), MemSrc);
	}

	MemDst[BUFFSIZE] =3D '\0';

#if DEBUG
/*
	printf("MemDst =3D %s\n", MemDst);
 */
	for (i=3D0; i<BUFFSIZE; i++) {
		printf("MemDst[%d] =3D %c\n", i, MemDst[i]);
	}
#endif
	return 0;
}


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Subject: [parisc-linux] Re: copy_user_page_asm suggested 64bit improvment
	(Test case)
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On Tue, Dec 28, 2004 at 04:25:45PM +0000, Joel Soete wrote:
> A test case may can help better to show improvement:
> 
> gcc -O2 -o cpup0 cpup0.c
> gcc -march=2.0 -O2 -DLP64 -o cpup1 cpup0.c
> gcc -march=2.0 -O2 -DLP64 -DV1 -o cpup2 cpup0.c
> gcc -march=2.0 -O2 -DLP64 -DV2 -o cpup3 cpup0.c

As usual, I've hacked the cpup.c test.
Don't compare my results below with the previous ones Joel posted.
I've committed my version of cpup.c to "build-tools" repository.

grundler <549>for j in 1 2 3 4 5 ; do echo -n $j " " ; for i in 0 1 2 3; do time ./cpup$i ; done 2>&1 | fgrep user | cut -f2 ; done

and globbed the output a bit so it looks like a table:
#   cpup0    cpup1    cpup2    cpup3
1  0m1.033s 0m0.616s 0m0.607s 0m0.616s
2  0m1.039s 0m0.651s 0m0.587s 0m0.589s
3  0m1.004s 0m0.605s 0m0.631s 0m0.613s
4  0m1.015s 0m0.615s 0m0.572s 0m0.592s
5  0m1.014s 0m0.619s 0m0.564s 0m0.607s

Results are not statistically significant between 64-bit variants.
Results are from 2.6.10-rc3-pa6 SMP 64-bit kernel on a500-65 w/8G RAM
that was running a compile in the background.

cpupX columns above are defined by the following:
/*
** gcc -O2 -o cpup0 cpup.c             vanilla 32-bit loop
**      -march=2.0 -DLP64 -o cpup1      64-bit, 4ld + 4st sequences
**      -march=2.0 -DLP64 -DV1 -o cpup2 64-bit, 4regs, 2ld/2st bundles
**      -march=2.0 -DLP64 -DUSE6REGS -o cpup3 64-bit, 6 regs, 2ld/2st bundles
*/

And I'm wondering how/if 64-bit user space test ever worked since we don't
officially support 64-bit user space.
Likely I'm copying trash around even though the pointers are probably intact.

cpup2 is what I'd like to commit for the kernel version.
I've appended the patch.

I was expecting cpup3 would be slightly faster but don't have data
to prove it. And I'm still worried that GR23/GR24 won't be saved
by the caller since the __copy_user_page_asm function prototype
only specifies two arguments.

thanks,
grant


Index: arch/parisc/kernel/pacache.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/pacache.S,v
retrieving revision 1.13
diff -u -p -r1.13 pacache.S
--- arch/parisc/kernel/pacache.S	19 Dec 2004 04:50:35 -0000	1.13
+++ arch/parisc/kernel/pacache.S	29 Dec 2004 05:37:46 -0000
@@ -295,17 +295,72 @@ copy_user_page_asm:
 	.callinfo NO_CALLS
 	.entry
 
-	ldi		64, %r1
+#ifdef __LP64__
+	/* PA8x00 CPUs can consume 2 loads and 2 stores per cycle.
+	 * Unroll the loop by hand and arrange insn appropriately.
+	 * GCC probably can do this just as well.
+	 *
+	 * Prefetching and using more regs to increase the "distance"
+	 * between ldd and corresponding std are possible optimizations.
+	 */
+
+	ldi		32, %r1                 /* PAGE_SIZE/128 == 32 */
+
+1:	ldd		0(%r25), %r19		/* prolog == 1 bundle */
+	ldd		8(%r25), %r20
+
+	ldd		16(%r25), %r21		/* bundle 2 */
+	ldd		24(%r25), %r22
+	std		%r19, 0(%r26)
+	std		%r20, 8(%r26)
+
+	ldd		32(%r25), %r19		/* bundle 3 */
+	ldd		40(%r25), %r20
+	std		%r21, 16(%r26)
+	std		%r22, 24(%r26)
+
+	ldd		48(%r25), %r21		/* bundle 4 */
+	ldd		56(%r25), %r22
+	std		%r19, 32(%r26)
+	std		%r20, 40(%r26)
+
+	ldd		64(%r25), %r19		/* bundle 5 */
+	ldd		72(%r25), %r20
+	std		%r21, 48(%r26)
+	std		%r22, 56(%r26)
+
+	ldd		80(%r25), %r21		/* bundle 6 */
+	ldd		88(%r25), %r22
+	std		%r19, 64(%r26)
+	std		%r20, 72(%r26)
+
+	ldd		 96(%r25), %r19		/* bundle 7 */
+	ldd		104(%r25), %r20
+	std		%r21, 80(%r26)
+	std		%r22, 88(%r26)
+
+	ldd		112(%r25), %r21		/* bundle 8 */
+	ldd		120(%r25), %r22
+	std		%r19, 96(%r26)
+	std		%r20, 104(%r26)
+
+	ldo		128(%r25), %r25		/* epilog == 2 bundles */
+	std		%r21, 112(%r26)
+	std		%r22, 120(%r26)
+
+	ADDIB>		-1, %r1, 1b
+	ldo		128(%r26), %r26
+
+#else
 
 	/*
 	 * This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
-	 * bundles (very restricted rules for bundling). It probably
-	 * does OK on PCXU and better, but we could do better with
-	 * ldd/std instructions. Note that until (if) we start saving
+	 * bundles (very restricted rules for bundling).
+	 * Note that until (if) we start saving
 	 * the full 64 bit register values on interrupt, we can't
 	 * use ldd/std on a 32 bit kernel.
 	 */
-
+	ldi		64, %r1		/* PAGE_SIZE/64 == 64 */
 
 1:
 	ldw		0(%r25), %r19
@@ -343,7 +398,7 @@ copy_user_page_asm:
 	ldo		64(%r26), %r26
 	ADDIB>		-1, %r1, 1b
 	ldo		64(%r25), %r25

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Subject: [parisc-linux] Re: copy_user_page_asm suggested 64bit improvment
	(Test case)
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Grant Grundler wrote:
> On Tue, Dec 28, 2004 at 04:25:45PM +0000, Joel Soete wrote:
[...]
> 
> As usual, I've hacked the cpup.c test.
Cool ;-)

> Don't compare my results below with the previous ones Joel posted.
> I've committed my version of cpup.c to "build-tools" repository.
>
Thanks

[...]
> 
> cpup2 is what I'd like to commit for the kernel version.
> I've appended the patch.
> 
Nice

> I was expecting cpup3 would be slightly faster but don't have data
> to prove it.
Don't know where can we find L1-Cache state diagram to help more?

> And I'm still worried that GR23/GR24 won't be saved
> by the caller since the __copy_user_page_asm function prototype
> only specifies two arguments.
> 
> thanks,
> grant
> 
Thanks for your attention,
	Joel
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: copy_user_page_asm suggested 64bit improvment [Was:
	[parisc-linux]	clear user page test]
Date: Thu, 30 Dec 2004 01:10:34 -0700
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On Mon, Dec 27, 2004 at 12:36:54AM -0700, Grant Grundler wrote:
> Anyone know how many cycles ldd from L1 takes?

I found the answer for PCX-W CPU:
	The PCXW Data cache is a 4-way set associative 1 MB cache, split
	into two banks and interleaved on double word boundaries to allow
	two simultaneous uses of the cache. Each bank is further divided
	into independent tag and data ports, primarily to allow effective
	single cycle stores. The two tags hold identical information.
	Each port returns data in two cycles, but can start a new access
	every cycle.

I'll assume PA8[567]00 CPUs have similar if not identical behavior.
PA8800 may not and I'd be curious if anyone knows.

I've just committed a "simple" version that uses r19/20/21/22.
I've got another version that also uses r23/r24 but it didn't boot
and I didn't chase down why. It's possibly a HW bug with this particular
A500. I'll try it again.

Lamont tells me r23/24/28/29 are *caller* saves registers. 
Ie I could r28/29 as well (or instead of r23/24).

thanks,
grant
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From: Chris Blackburn <cblackburn36@softhome.net>
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Subject: [parisc-linux] Visualize J5000 and EG Graphics card
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Hi,

I am trying to get X windows working on a Visualize J5000 with an EG
Graphics card. The kernel recognises the card and dmesg | grep fb shows
that a framebuffer has been activated but when I try to run X I get an
HPMC error. Is this a known problem? If so how can I fix it.

Details:-

uname -a: Linux dougal 2.6.8-1-64-smp #1 SMP Tue Nov 2 13:37:53 MST 2004
parisc64 GNU/Linux

Appropriate part of /proc/pci:-

~  Bus  4, device   7, function  0:
~    Display controller: Hewlett-Packard Company A4977A Visualize EG
(rev 3).
~      Non-prefetchable 32 bit memory at 0xfffffffffa000000
[0xfffffffffbffffff].

and my XF86Config-4 file is attached.

Thanks for all your help

- --
Chris Blackburn
E-Mail: cblackburn36NOSPAM@softhome.net	
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 filename="XF86Config-4"

# XF86Config-4 (XFree86 X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the XF86Config-4 manual page.
# (Type "man XF86Config-4" at the shell prompt.)
#
# This file is automatically updated on xserver-xfree86 package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xfree86
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following commands as root:
#
#   cp /etc/X11/XF86Config-4 /etc/X11/XF86Config-4.custom
#   md5sum /etc/X11/XF86Config-4 >/var/lib/xfree86/XF86Config-4.md5sum
#   dpkg-reconfigure xserver-xfree86

Section "Files"
	FontPath	"unix/:7100"			# local font server
	# if the local font server has problems, we can fall back on these
	FontPath	"/usr/lib/X11/fonts/misc"
	FontPath	"/usr/lib/X11/fonts/cyrillic"
	FontPath	"/usr/lib/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/Type1"
	FontPath	"/usr/lib/X11/fonts/CID"
	FontPath	"/usr/lib/X11/fonts/Speedo"
	FontPath	"/usr/lib/X11/fonts/100dpi"
	FontPath	"/usr/lib/X11/fonts/75dpi"
EndSection

Section "Module"
	Load	"GLcore"
	Load	"bitmap"
	Load	"dbe"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"record"
	Load	"speedo"
	Load	"type1"
	Load	"vbe"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"keyboard"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xfree86"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"gb"
	Option		"XkbVariant"	"gb"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
	Option		"Emulate3Buttons"	"true"
	Option		"ZAxisMapping"		"4 5"
EndSection

Section "Device"
	Identifier	"HP Visualize FX4"
	Driver		"fbdev"
        Option          "UseFBDev"        "true"
EndSection

Section "Monitor"
	Identifier	"MITAC-17AE"
	HorizSync	30-65
	VertRefresh	50-75
	Option		"DPMS"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"HP Visualize FX4"
	Monitor		"MITAC-17AE"
	DefaultDepth	8
	SubSection "Display"
		Depth		1
		Modes		"1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
EndSection

Section "DRI"
	Mode	0666
EndSection

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Xref: news.gmane.org gmane.linux.ports.parisc:22233

> Lamont tells me r23/24/28/29 are *caller* saves registers. 
> Ie I could r28/29 as well (or instead of r23/24).

Here is a summary of the uses for general call used registers.  These are
r1, r2 and r19 to r31.

Register			32-bit		64-bit
Arguments		       r23-r26 	       r19-r26
Argument Pointer		    NA		   r29
Static Chain			   r29		   r31
PIC Offset Table Pointer	   r19		   r27
Stack Pointer			   r30		   r30
Return Pointer			    r2		    r2
Millicode Return Pointer	   r31		    r2 (r31 for local millicode)
Pointer for $$dyncall		   r21		    NA

You can never use r30 and you can't use r2 without saving it.  Watch out
for the PIC register conventions.  Depending on circumstances, the rest
should be usable.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Visualize J5000 and EG Graphics card
Date: Thu, 30 Dec 2004 12:47:23 -0700
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To: Chris Blackburn <cblackburn36@softhome.net>
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Xref: news.gmane.org gmane.linux.ports.parisc:22234

On Thu, Dec 30, 2004 at 10:07:06AM +0000, Chris Blackburn wrote:
> I am trying to get X windows working on a Visualize J5000 with an EG
> Graphics card. The kernel recognises the card and dmesg | grep fb shows
> that a framebuffer has been activated but when I try to run X I get an
> HPMC error. Is this a known problem? If so how can I fix it.

Yes, known problem. I ran into a few monthes back.
64-bit kernel isn't F-extending an address someplace.
We've had this problem before and I don't know when it crept back in.
Either use 32-bit kernel or start hunting down the life span of the
frame buffer address. Maybe start with the STI FB drivers.

thanks,
grant

> 
> Details:-
> 
> uname -a: Linux dougal 2.6.8-1-64-smp #1 SMP Tue Nov 2 13:37:53 MST 2004
> parisc64 GNU/Linux
> 
> Appropriate part of /proc/pci:-
> 
> ~  Bus  4, device   7, function  0:
> ~    Display controller: Hewlett-Packard Company A4977A Visualize EG
> (rev 3).
> ~      Non-prefetchable 32 bit memory at 0xfffffffffa000000
> [0xfffffffffbffffff].
> 
> and my XF86Config-4 file is attached.
> 
> Thanks for all your help
> 
> - --
> Chris Blackburn
> E-Mail: cblackburn36NOSPAM@softhome.net	
> E-Mail: cblackburn36@NOSPAMgmail.com
> PGP Public Key: http://makeashorterlink.com/?C2AF31929
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> # XF86Config-4 (XFree86 X Window System server configuration file)
> #
> # This file was generated by dexconf, the Debian X Configuration tool, using
> # values from the debconf database.
> #
> # Edit this file with caution, and see the XF86Config-4 manual page.
> # (Type "man XF86Config-4" at the shell prompt.)
> #
> # This file is automatically updated on xserver-xfree86 package upgrades *only*
> # if it has not been modified since the last upgrade of the xserver-xfree86
> # package.
> #
> # If you have edited this file but would like it to be automatically updated
> # again, run the following commands as root:
> #
> #   cp /etc/X11/XF86Config-4 /etc/X11/XF86Config-4.custom
> #   md5sum /etc/X11/XF86Config-4 >/var/lib/xfree86/XF86Config-4.md5sum
> #   dpkg-reconfigure xserver-xfree86
> 
> Section "Files"
> 	FontPath	"unix/:7100"			# local font server
> 	# if the local font server has problems, we can fall back on these
> 	FontPath	"/usr/lib/X11/fonts/misc"
> 	FontPath	"/usr/lib/X11/fonts/cyrillic"
> 	FontPath	"/usr/lib/X11/fonts/100dpi/:unscaled"
> 	FontPath	"/usr/lib/X11/fonts/75dpi/:unscaled"
> 	FontPath	"/usr/lib/X11/fonts/Type1"
> 	FontPath	"/usr/lib/X11/fonts/CID"
> 	FontPath	"/usr/lib/X11/fonts/Speedo"
> 	FontPath	"/usr/lib/X11/fonts/100dpi"
> 	FontPath	"/usr/lib/X11/fonts/75dpi"
> EndSection
> 
> Section "Module"
> 	Load	"GLcore"
> 	Load	"bitmap"
> 	Load	"dbe"
> 	Load	"ddc"
> 	Load	"dri"
> 	Load	"extmod"
> 	Load	"freetype"
> 	Load	"glx"
> 	Load	"int10"
> 	Load	"record"
> 	Load	"speedo"
> 	Load	"type1"
> 	Load	"vbe"
> EndSection
> 
> Section "InputDevice"
> 	Identifier	"Generic Keyboard"
> 	Driver		"keyboard"
> 	Option		"CoreKeyboard"
> 	Option		"XkbRules"	"xfree86"
> 	Option		"XkbModel"	"pc104"
> 	Option		"XkbLayout"	"gb"
> 	Option		"XkbVariant"	"gb"
> EndSection
> 
> Section "InputDevice"
> 	Identifier	"Configured Mouse"
> 	Driver		"mouse"
> 	Option		"CorePointer"
> 	Option		"Device"		"/dev/input/mice"
> 	Option		"Protocol"		"ImPS/2"
> 	Option		"Emulate3Buttons"	"true"
> 	Option		"ZAxisMapping"		"4 5"
> EndSection
> 
> Section "Device"
> 	Identifier	"HP Visualize FX4"
> 	Driver		"fbdev"
>         Option          "UseFBDev"        "true"
> EndSection
> 
> Section "Monitor"
> 	Identifier	"MITAC-17AE"
> 	HorizSync	30-65
> 	VertRefresh	50-75
> 	Option		"DPMS"
> EndSection
> 
> Section "Screen"
> 	Identifier	"Default Screen"
> 	Device		"HP Visualize FX4"
> 	Monitor		"MITAC-17AE"
> 	DefaultDepth	8
> 	SubSection "Display"
> 		Depth		1
> 		Modes		"1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
> 	EndSubSection
> 	SubSection "Display"
> 		Depth		4
> 		Modes		"1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
> 	EndSubSection
> 	SubSection "Display"
> 		Depth		8
> 		Modes		"1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
> 	EndSubSection
> EndSection
> 
> Section "ServerLayout"
> 	Identifier	"Default Layout"
> 	Screen		"Default Screen"
> 	InputDevice	"Generic Keyboard"
> 	InputDevice	"Configured Mouse"
> EndSection
> 
> Section "DRI"
> 	Mode	0666
> EndSection

> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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Subject: Re: copy_user_page_asm suggested 64bit improvment [Was:
	[parisc-linux] clear user page test]
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Xref: news.gmane.org gmane.linux.ports.parisc:22235

On Mon December 27 2004 09:08, James Bottomley wrote:
> On Mon, 2004-12-27 at 10:40 +0000, Joel Soete wrote:
> > Should be why it was removed but as far as I didn't find any explanation (that's obvious: that's nearly impossible to explain all 
> > details of implementation ;-)
> 
> I haven't time to look through the patch, but I can explain what the
> pdtlb's are about in pacache.S.
> 
> Both copy_user_page_asm and __clear_user_page_asm use something called
> the tmpalias mapping.  This is a 8MB reserved area that's used to prime
> the user space cache.  What you do is to set up a temporary mapping for
> the target of the copy which is congruent to the user space address
> somewhere in the tmpalias region.  Then when you do the copy, the user
> alias is automatically up to date as well (because the cache sees the
> collision by virtue of its congruence properties).
> 
> It's a nice idea, but we've never been able to make it work in practise,
> because the user page we're copying can be an executable page, and this
> scheme only makes the d-cache correct.  If we had a way of telling
> whether it's a data page or and instruction page, we could make it work.
> That's why the mechanism is #if 0'd out.
> 
Group,
I have been following this thread with interest.  Let me share my observations.

Changes in the instruction sequence of this kernel code path makes a user
observable difference in execution timings.

<bold-statement attribute="General-OS-Design">
    This path should not be within the set of user observable execution times.
</bold-statement>

Conditions, general:
The copy of a "user page" :: presumed to mean "copy of a page assigned
to user space".  Possible refinement: "copy of a page assigned to a specific
user's space".

Page must contain zeros on return.

Contents of system caches must correspond to contents of page (zeros).

On entry, it is unknown if page is currently Data, Executable (Instruction),
Both, or Neither.
Having a means to determine the exact, prior, usages of a page on entry
to this path would be nice; but logic and design can overcome this lack.

HP, PA-RISC has only i-cache and d-cache hardware.  It does not have
s-cache hardware.

A page assigned to user space may be assigned to more than one,
specific, user's space.

A page assigned to user space may also be assigned to kernel space.

For a 'dual assigned' page (assigned to both user space and kernel space) 
the following must hold:

A)  (Kernel Instruction) and (User Instruction)::
        MUST NOT also be assigned: (User Data)
        MAY OPTIONALLY be assigned: (Kernel Data)

B)  (Kernel Data) and (User Data)::
        MUST NOT also be assigned: (Kernel Instruction)
        MAY OPTIONALLY be assigned: (User Instruction)

The above requirements are independent of the implementation of
such assignments.  
Memory management hardware that allows 'dual assignment' is rare.  
Memory management software that allows 'dual assignment' by 
constructing a 'page alias' is common.

Condition (A :: 'MUST NOT') protects kernel provided, common code, 
from user modification.

Condition (A :: 'MAY OPTIONALLY') allows the kernel to:
    1) Dynamically alter the code provided to user space in general.
    2) Dynamically alter the code provided to a specific user's space.  
        NOTE: Such operation would trigger a 'copy on write' code path.  
        NOTE: The (shared) source page of 'copy on write' is not modified.
        NOTE: The destination page of 'copy on write' comes from the free pool.

Condition (B :: 'MUST NOT') protects the kernel from user insertion or 
modification of kernel code.

Condition (B :: 'MAY OPTIONALLY') supports the provision of 'executable
stack' in user space in the absence of s-cache hardware.

For a system that supports the provision of 'user, executable stack' the
following must hold:

C) (User Instruction) and (User Data) and (User Stack)::
        MUST meet condition (B)
        MUST NOT be shared among users: thou shall not share your stack.

D) (User Data) and (User Heap)::
        MUST NOT also be assigned: (Kernel Instruction)
        MUST NOT also be assigned: (User Instruction)
        MAY OPTIONALLY share disjoint address sub-ranges of the overall
        address range '((User Instruction) and (User Data) and (User Stack))'
        ON EITHER CONDITION OF:
        1) Attributes of the disjoint address sub-ranges are also disjoint.
        2) Software design can guarantee behavior the same as sub-condition(1).

Condition (C :: 'MUST NOT') 'copy on write' code path is never used.

Condition (D :: 'MUST NOT') Differs from (Condition C) by non-compliance with
(Condition B).

Condition (D :: 'MAY OPTIONALLY') Guarantees the distinction between (Condition
C) and (Condition D) when (Condition D) address area is shared among users in
the absence of separate (Condition C) and (Condition D) address spaces.
NOTE: A (Condition D) area my trigger a 'copy on write' code path; A (Condition
C) area MUST NOT trigger a 'copy on write" code path.

<All-Other-Combinations>

1) A page received from (any) free pool is guaranteed to contain only zeros.
2) A page received from (any) free pool is guaranteed to not have any 'user
space' cache representations.

</All-Other-Combinations>

NOTE: Zeroing a page received from (any) free pool is not 'user observable'
for the simple reason that it never happens.

<Page-Return-To-Free-Pool>

Pages which are intended to be added to the free pool, are not directly returned
to the free pool. 
Instead they are returned to a kernel space, free pool management, daemon.  It
is this daemon that makes the <All-Other-Combinations> guarantee.

NOTE: Zeroing a page on return to (any) free pool is not 'user observable' only
the 'add to free pool incoming queue' is in the 'user observable' code path.

NOTE: Pages handled by this daemon may have both d-cache and i-cache
representations.  But the code which deals with this situation is not 'user 
observable' because the entire 'return to free pool' operation is not 'user
observable'.

</Page-Return-To-Free-Pool>

<Non-Free-Pool-Pages>

<Non-rhetorical Question="What user pages can be both Instruction and Data?" />

(Condition B - 'MAY OPTIONALLY') pages: 

Dual Assigned : (I.E: Transition from 'shared' to 'private')
In-Use portion is copied ('user observable') - Not-Used portion is not copied.
It can be guaranteed to already be zero since it hasn't been used.
The 'write' side of the copy instructions does any 'cache priming'.

(Condition C) pages:

NOTE: Never shared, therefore never copied.

NOTE: Extending the pages present for an executable stack does not
have 'user observable' zeroing since the new page source is the free pool.

NOTE: Trimming 'zombie' stack extensions under general memory pressure
(I.E: Free pool exhausted @ new page request pending) would generate 'user
observable' execution time while a page on the 'add to free pool incoming
queue' was cleared.
This corner case can be postponed by using 'preemptive trimming' implemented
in the free pool management daemon.

</Non-Free-Pool-Pages>

Q.E.D: Zeroing a page with the destination of user space assignment need not
be a 'user observable' execution time.

There should be additional gains made in 'copy-[to|from]-user' when these four
conditions are enforced.

Mike
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: copy_user_page_asm suggested 64bit improvment [Was:
	[parisc-linux] clear user page test]
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On Fri, Dec 31, 2004 at 02:26:13PM -0600, Michael S. Zick wrote:
>     This path should not be within the set of user observable execution times.
...
> NOTE: Zeroing a page on return to (any) free pool is not 'user observable' only
> the 'add to free pool incoming queue' is in the 'user observable' code path.
> 
> NOTE: Pages handled by this daemon may have both d-cache and i-cache
> representations.  But the code which deals with this situation is not 'user 
> observable' because the entire 'return to free pool' operation is not 'user
> observable'.
...
> Q.E.D: Zeroing a page with the destination of user space assignment need not
> be a 'user observable' execution time.

Mike,
The copy_user_page and zero_page functions *are* observable since they
affect metrics reported by "time" and readprofile. I don't care if they
are in invoked in the application context or some other context.

Certainly, it would reduce startup latency to pre-zero the pages in
the kernel (daemon) and have them ready when apps want them.
But on a loaded system, I expect this will be slightly less efficient
and more complex since one doesn't know how many need to be pre-zero'd
or when to steal pre-zero'd pages for other uses (e.g. load in an
executable).

> There should be additional gains made in 'copy-[to|from]-user' when these four
> conditions are enforced.

I read the conditions and thought "neat".
I don't pretend to understand all of them or what they mean.
But instead of trying to explain them, could you send me a patch that works?
Maybe something that has a chance of going back upstream to linus?

thanks,
grant

> 
> Mike
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From: James Bottomley <James.Bottomley@SteelEye.com>
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Subject: Re: copy_user_page_asm suggested 64bit improvment [Was:
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On Fri, 2004-12-31 at 14:26 -0600, Michael S. Zick wrote:
> Page must contain zeros on return.
> 
> Contents of system caches must correspond to contents of page (zeros).

Actually, no, this is precisely what we don't do for performance
reasons.  If we just wanted to the caches and main memory in sync, we
wouldn't need to muck with the tmpalias space.

What clear_user_page_asm does is to prime the cache covering the page
with zeros, but return the page to user space with a dirty cache (i.e.
with the real memory not necessarily zero'd but with the cache in a
state to zero it on a flush).  The reason for using the tmpalias space
is so that the user's VIPT cache lines covering the page are congruent
and thus the same ones the kernel wrote the zeros to.

This means that if the user is simply going to fill the page again, we
stand a good chance of *not* having to write the zeros to main memory in
the first place (this saves us quite a bit of execution time because
writing to main memory is an expensive operation).

James


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On Fri December 31 2004 14:56, Grant Grundler wrote:
> 
> I read the conditions and thought "neat".
> I don't pretend to understand all of them or what they mean.
> But instead of trying to explain them, could you send me a patch that works?
> Maybe something that has a chance of going back upstream to linus?
> 
I tried the 'patch that works' route with a similar suggestion for sched.c
Based on that experience...

I suspect that perhaps pictures (diagrams? flow charts? dependency
graphs?) might stand a better chance of conveying what I can't explain
in English.  I'll put that (drawing pictures) on my todo list.

Let me attempt an abstract in words:

The *nix philosophy is two part drivers.

The 'top part' can be viewed as a 'client' that makes requests on 
behalf of the hardware.
The 'bottom part' can be viewed as a 'host' that services 'client'
requests.

Nothing new there.

What I proposed was:
The memory page free pool be defined as a 'virtual device' with
a two part driver.

The 'top part' is executed by the 'client' (kernel).
The 'bottom part' is executed by the 'host' (kernel daemon).

The only thing different than usual here is that a real hardware
device is (in most cases) the 'client' and the kernel is the 'host'.

In this virtual free pool device, the kernel is the 'client' and the
daemon is the 'host' (which only happens to be part of the kernel).
Only the 'client' code is in the user's execution path.

Should be interesting to consider.

I wouldn't expect the idea to be adopted any quicker than my
description (and patch that works) that the scheduler should be
a virtual device with a two part driver.

Mike
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On Fri December 31 2004 16:54, Grant Grundler wrote:
> On Fri, Dec 31, 2004 at 03:35:28PM -0600, Michael S. Zick wrote:
> > I tried the 'patch that works' route with a similar suggestion for sched.c
> > Based on that experience...
> 
> ah good. You learned something. :^)
>
Sometimes.

> 
> > What I proposed was:
> > The memory page free pool be defined as a 'virtual device' with
> > a two part driver.
> ...
> > In this virtual free pool device, the kernel is the 'client' and the
> > daemon is the 'host' (which only happens to be part of the kernel).
> > Only the 'client' code is in the user's execution path.
> 
> This sounds neat and "clean". But things could get very ugly
> when one needs to "steal" zero'd pages for other uses.
> 
> > Should be interesting to consider.
> 
> Yes, Agreed.
>
Better the discussion first - code optionally later.

> 
> > I wouldn't expect the idea to be adopted any quicker than my
> > description (and patch that works) that the scheduler should be
> > a virtual device with a two part driver.
> 
> I don't know what happened to your scheduler idea specifically (or
> how it was presented), but making something a driver means
> giving up something else. Been there done that.
> 
Overly radical at the time of presentation compared with 
other 'work in progress'.

Managing the free page pool (only) as a virtual device would lead
to much-oh (scientific term ;) glue code.  Not much of an improvement
over current practice.
Managing over-all memory resources as a virtual device is the answer;
but that is hardly a 'patch'.

Even so, glue code would be required unless the resource of 
cpu-cycles was also managed as a virtual device.

Now the topic is definitely out of the 'patch' scope, providing both
virtual devices would need to be a kernel branch devoted to the
project.

That in turn would require that a whole lot of people 'get on board'
with the ideas behind the design change.

The only practical means to accomplish that brings us full circle
back to the observation above: "Discussion First".

Mike
(PS: None of this is academic, just a clean re-write of code
written in the past for proprietary operating systems.)
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This patch adds one more cycle between the load and store of a
given register by using three pairs of registers instead of two.
I had previously quoted one of the PA-8xxx papers that indicated
L1 cache was 2 cycles latency.
With this diff, the unrolled part of the loop now meets that.
The prolog and epilogue obviously cannot.

If anyone can show me a workload that improves with this diff,
I'll apply it. Otherwise it's just an academic excercise.

BTW, I don't really trust build-tools/cpup.c unless someone
can convince me it's really running in wide mode and not getting
lots of page faults/page zeroing to interfere with the test.
Maybe need to iterate over a smaller buffer (e.g. 64MB) several times
and ignore the first iteration. Maybe also record cr16 values between
calls to find a minima and median *after* all the copying
is done.

thanks,
grant

ps. The "alignment doesn't matter" comment is too short. It really
    means the alignment doesn't matter for the rest of the loop.
    ie I don't need to add nops to seperate the pairs of "std" insns.

Index: arch/parisc/kernel/pacache.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/pacache.S,v
retrieving revision 1.14
diff -u -p -r1.14 pacache.S
--- arch/parisc/kernel/pacache.S	30 Dec 2004 08:07:48 -0000	1.14
+++ arch/parisc/kernel/pacache.S	3 Jan 2005 05:59:19 -0000
@@ -306,51 +306,52 @@ copy_user_page_asm:
 
 	ldd		0(%r25), %r19		/* bundle 1 */
 	ldi		32, %r1                 /* PAGE_SIZE/128 == 32 */
-
 1:	ldd		8(%r25), %r20
 	ldw		256(%r25), %r0		/* prefetch 4 cacheline ahead */
 
 	ldd		16(%r25), %r21		/* bundle 2 */
 	ldd		24(%r25), %r22
+	nop		/* preserve alignment of quads */
+	nop		/* preserve alignment of quads */
+
+	ldd		32(%r25), %r23		/* bundle 3 */
+	ldd		40(%r25), %r24
 	std		%r19, 0(%r26)
 	std		%r20, 8(%r26)
 
-	ldd		32(%r25), %r19		/* bundle 3 */
-	ldd		40(%r25), %r20
+	ldd		48(%r25), %r19		/* bundle 4 */
+	ldd		56(%r25), %r20
 	std		%r21, 16(%r26)
 	std		%r22, 24(%r26)
 
-	ldd		48(%r25), %r21		/* bundle 4 */
-	ldd		56(%r25), %r22
-	std		%r19, 32(%r26)
-	std		%r20, 40(%r26)
-
-	ldd		64(%r25), %r19		/* bundle 5 */
-	ldd		72(%r25), %r20
-	std		%r21, 48(%r26)
-	std		%r22, 56(%r26)
-
-	ldd		80(%r25), %r21		/* bundle 6 */
-	ldd		88(%r25), %r22
-	std		%r19, 64(%r26)
-	std		%r20, 72(%r26)
+	ldd		64(%r25), %r21		/* bundle 5 */
+	ldd		72(%r25), %r22
+	std		%r23, 32(%r26)
+	std		%r24, 40(%r26)
+
+	ldd		80(%r25), %r23		/* bundle 6 */
+	ldd		88(%r25), %r24
+	std		%r19, 48(%r26)
+	std		%r20, 56(%r26)
 
 	ldd		 96(%r25), %r19		/* bundle 7 */
 	ldd		104(%r25), %r20
-	std		%r21, 80(%r26)
-	std		%r22, 88(%r26)
+	std		%r21, 64(%r26)
+	std		%r22, 72(%r26)
 
 	ldd		112(%r25), %r21		/* bundle 8 */
 	ldd		120(%r25), %r22
+	std		%r23, 80(%r26)
+	std		%r24, 88(%r26)
+
+	ldo		128(%r25), %r25		/* alignment doesn't matter */
 	std		%r19, 96(%r26)
 	std		%r20, 104(%r26)

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> This patch adds one more cycle between the load and store of a
> given register by using three pairs of registers instead of two.
> I had previously quoted one of the PA-8xxx papers that indicated
> L1 cache was 2 cycles latency.
> With this diff, the unrolled part of the loop now meets that.
> The prolog and epilogue obviously cannot.
> 
> If anyone can show me a workload that improves with this diff,
> I'll apply it. Otherwise it's just an academic excercise.

i'd like to see numbers too, but i doubt you will see any. it appears
that at least newer PA cpus do a sufficient amount of internal
instruction reordering that you don't see a difference as long as there
are enough pending instructions to keep the pipeline busy.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Randolph,

Is this something that would benefit older processors? Say a PCX-T
processor?  Is this something worth testing?  I'm pretty sure I 
have a PCX-T processor around I could boot up and test.

- Ryan

On Mon, 2005-01-03 at 22:13 -0800, Randolph Chung wrote:
> > This patch adds one more cycle between the load and store of a
> > given register by using three pairs of registers instead of two.
> > I had previously quoted one of the PA-8xxx papers that indicated
> > L1 cache was 2 cycles latency.
> > With this diff, the unrolled part of the loop now meets that.
> > The prolog and epilogue obviously cannot.
> > 
> > If anyone can show me a workload that improves with this diff,
> > I'll apply it. Otherwise it's just an academic excercise.
> 
> i'd like to see numbers too, but i doubt you will see any. it appears
> that at least newer PA cpus do a sufficient amount of internal
> instruction reordering that you don't see a difference as long as there
> are enough pending instructions to keep the pipeline busy.
> 
> randolph
-- 
Ryan Bradetich <rbradetich@uswest.net>

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Subject: Re: [parisc-linux] DIFF use 6-regs in copy_user_page_asm
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> Is this something that would benefit older processors? Say a PCX-T
> processor?  Is this something worth testing?  I'm pretty sure I 
> have a PCX-T processor around I could boot up and test.

i have no idea, but we can test it and see. i've read some pdfs which
suggest that all pa20 processors can do this reordering, but i don't
know about pa11 processors. in any case, empirical results are always
better than speculation :)

randolph
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From: Mike Frysinger <vapier@gentoo.org>
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Subject: [parisc-linux] [patch] fix serial stuff in 2.6.10-pa3 wrt to NO_IRQ
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i mentioned this before but i guess it slipped through the cracks ;)
-mike

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Content-Type: text/x-diff; charset="us-ascii";
	name="2.6.10-pa3-serial-NO_IRQ.patch"
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--- linux-2.6.10-pa3/drivers/serial/mux.c.orig	2005-01-03 16:16:18.085834288 -0500
+++ linux-2.6.10-pa3.fixed/drivers/serial/mux.c	2005-01-03 16:17:09.179066936 -0500
@@ -26,6 +26,7 @@
 #include <linux/slab.h>
 #include <linux/delay.h> /* for udelay */
 #include <linux/device.h>
+#include <asm/irq.h>
 #include <asm/io.h>
 #include <asm/parisc-device.h>
 
--- linux-2.6.10-pa3/drivers/serial/serial_core.c.orig	2005-01-03 16:16:34.786295432 -0500
+++ linux-2.6.10-pa3.fixed/drivers/serial/serial_core.c	2005-01-03 16:16:42.412136128 -0500
@@ -1915,9 +1915,6 @@
 		printk("MMIO 0x%lx", port->mapbase);
 		break;
 	}
-#ifndef NO_IRQ
-#define NO_IRQ (-1)
-#endif
 	if (port->irq == NO_IRQ) {
 		printk(" (polled) is a %s\n", uart_type(port));
 	} else {

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Subject: Re: [parisc-linux] DIFF use 6-regs in copy_user_page_asm
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> -- Original Message --
> Date: Tue, 4 Jan 2005 00:29:40 -0800
> From: Randolph Chung <randolph@tausq.org>
> To: Ryan Bradetich <rbradetich@uswest.net>
> Cc: parisc-linux@lists.parisc-linux.org
> Reply-To: Randolph Chung <randolph@tausq.org>
> Subject: Re: [parisc-linux] DIFF use 6-regs in copy_user_page_asm
> 
> 
> > Is this something that would benefit older processors? Say a PCX-T
> > processor?  Is this something worth testing?  I'm pretty sure I 
> > have a PCX-T processor around I could boot up and test.
> 
> i have no idea, but we can test it and see. i've read some pdfs which
> suggest that all pa20 processors can do this reordering, but i don't
> know about pa11 processors. in any case, empirical results are always
> better than speculation :)
> 
This is only foreseen for pa2.0 ;-)

That said, I also tried re-ordering (with only 4 regs) on my c110 but tes=
t
case (previous cpup0.c) didn't show any improvement nor degradation !

Grant I also rewrite test case (here attached cpup1.c) to reproduce your
proposal and compare with present stuff in kernel and here are some resul=
ts:
patst005:/Develop/jso/Var/Comp# time ./cpup1 ; time ./cpup2

real    0m3.964s
user    0m0.209s
sys     0m3.753s

real    0m3.976s
user    0m0.190s
sys     0m3.781s
patst005:/Develop/jso/Var/Comp# time ./cpup2 ; time ./cpup1

real    0m3.946s
user    0m0.218s
sys     0m3.725s

real    0m3.961s
user    0m0.196s
sys     0m3.762s
patst005:/Develop/jso/Var/Comp# time ./cpup0 ; time ./cpup2 ; time ./cpup=
1

real    0m4.046s
user    0m0.354s
sys     0m3.691s

real    0m3.940s
user    0m0.225s
sys     0m3.712s

real    0m3.946s
user    0m0.208s
sys     0m3.734s
patst005:/Develop/jso/Var/Comp# time ./cpup0 ; time ./cpup1 ; time ./cpup=
2

real    0m4.068s
user    0m0.342s
sys     0m3.724s

real    0m3.948s
user    0m0.194s
sys     0m3.752s

real    0m3.936s
user    0m0.193s
sys     0m3.740s
patst005:/Develop/jso/Var/Comp# time ./cpup1 ; time ./cpup0 ; time ./cpup=
2

real    0m3.928s
user    0m0.202s
sys     0m3.725s

real    0m4.067s
user    0m0.329s
sys     0m3.731s

real    0m3.946s
user    0m0.224s
sys     0m3.718s
patst005:/Develop/jso/Var/Comp# time ./cpup2 ; time ./cpup0 ; time ./cpup=
1

real    0m3.942s
user    0m0.213s
sys     0m3.727s

real    0m4.086s
user    0m0.333s
sys     0m3.749s

real    0m3.956s
user    0m0.208s
sys     0m3.745s

Unfortunately (as in the previous test), I didn't reach to point out an
actual benefit :-(

(please note that I have to reduce the BUFFSIZE because my b2k has only
256Mb of ram ;-)

hth,
    Joel

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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] 2.6.10-pa4: some "Badness in smp_call_function"
	during boot time of n4k (may be the same for nicol?)
Date: Tue, 4 Jan 2005 15:28:00 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:22246

Hi all,

Here is the console output of the n4k (dual way, 4Gb of ram):
Linux version 2.6.10-pa4-n4kmp (root@patst006) (gcc version 3.0.4) #1 SMP=

Tue Jan 4 11:24:31 CET 2005
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00005d30 00000491 00000000 00000002 27988e5d 100000f1 00000008 0000=
00b2
000000b2
vers  00000301
CPUID vers 18 rev 11 (0x0000024b)
capabilities 0x1
model 9000/800/N4000-55
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000007fffffff Size   2048 Mb
 1) Start 0x0000000180000000 End 0x00000001ffffffff Size   2048 Mb
Total Memory: 4096 Mb
SMP: bootstrap CPU ID is 0
Built 2 zonelists
Kernel command line: root=3D/dev/sda5 HOME=3D/ panic=3D120 profile=3D2 co=
nsole=3DttyS0
TERM=3Dvt102 palo_kernel=3D3/vmlinux-2.6.10-pa4-n4kmp
kernel profiling enabled (shift: 2)
PID hash table entries: 4096 (order: 12, 131072 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
Memory: 4194304k available
Mount-cache hash table entries: 256 (order: 0, 4096 bytes)
Brought up 1 CPUs
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Unknown machine at 0xfffffffffed25000 [37] { 0, 0x0, 0x5d3, 0x00000 }
2. Unknown machine at 0xfffffffffed2d000 [45] { 0, 0x0, 0x5d3, 0x00000 }
3. DEW BC Runway Port at 0xfffffffffed24000 [36] { 7, 0x0, 0x584, 0x0000c=

}
4. DEW BC Runway Port at 0xfffffffffed2c000 [44] { 7, 0x0, 0x584, 0x0000c=

}
5. Memory at 0xfffffffffedc0000 [192] { 1, 0x0, 0x090, 0x00009 }
6. IKE I/O BC Merced Port at 0xfffffffffed00000 [0] { 7, 0x0, 0x803, 0x00=
00c
}
7. Elroy PCI Bridge at 0xffffffffbffe0000 [0/0] { 13, 0x0, 0x782, 0x0000a=

}
8. Elroy PCI Bridge at 0xffffffffbffe2000 [0/1] { 13, 0x0, 0x782, 0x0000a=

}
9. Elroy PCI Bridge at 0xffffffffbffe4000 [0/2] { 13, 0x0, 0x782, 0x0000a=

}
10. Elroy PCI Bridge at 0xffffffffbffe8000 [0/4] { 13, 0x0, 0x782, 0x0000=
a
}
11. Elroy PCI Bridge at 0xffffffffbffea000 [0/5] { 13, 0x0, 0x782, 0x0000=
a
}
12. Elroy PCI Bridge at 0xffffffffbfff0000 [0/8] { 13, 0x0, 0x782, 0x0000=
a
}
13. Elroy PCI Bridge at 0xffffffffbfff4000 [0/10] { 13, 0x0, 0x782, 0x000=
0a
}
14. Elroy PCI Bridge at 0xffffffffbfff8000 [0/12] { 13, 0x0, 0x782, 0x000=
0a
}
15. IKE I/O BC Merced Port at 0xfffffffffed40000 [1] { 7, 0x0, 0x803, 0x0=
000c
}
16. Elroy PCI Bridge at 0xfffffffffece0000 [1/0] { 13, 0x0, 0x782, 0x0000=
a
}
17. Elroy PCI Bridge at 0xfffffffffece4000 [1/2] { 13, 0x0, 0x782, 0x0000=
a
}
18. Elroy PCI Bridge at 0xfffffffffece8000 [1/4] { 13, 0x0, 0x782, 0x0000=
a
}
19. Elroy PCI Bridge at 0xfffffffffecf0000 [1/8] { 13, 0x0, 0x782, 0x0000=
a
}
20. Elroy PCI Bridge at 0xfffffffffecf4000 [1/10] { 13, 0x0, 0x782, 0x000=
0a
}
21. Elroy PCI Bridge at 0xfffffffffecf8000 [1/12] { 13, 0x0, 0x782, 0x000=
0a
}
Releasing cpu 1 now, hpa=3Dfffffffffed2d000
FP[1] enabled: Rev 1 Model 16
CPU(s): 2 x PA8600 (PCX-W+) at 550.000000 MHz
Setting cache flush threshold to 22c380 (2 CPUs online)
SBA found Ike rev 2 at 0xfffffffffed00000
SBA found Ike rev 2 at 0xfffffffffed40000
LBA version TR4.0 (0x5) found at 0xffffffffbffe0000
Badness in smp_call_function at arch/parisc/kernel/smp.c:342
Backtrace:
 [<000000001019abec>] check_spinlock_acquired+0x24/0xb8
 [<00000000101147e8>] dump_stack+0x20/0x38
 [<00000000101209d8>] smp_call_function+0xd8/0x4c0
 [<0000000010115ecc>] enable_cpu_irq+0x74/0xb0
 [<0000000010116aa8>] setup_irq+0x170/0x198
 [<00000000102b6f1c>] pci_bus_read_config_byte+0x8c/0xe0
 [<0000000010116c04>] request_irq+0x134/0x178
 [<00000000102c20ec>] iosapic_xlate_pin+0xc4/0xe8
 [<00000000102c272c>] iosapic_fixup_irq+0x14c/0x218
 [<00000000102c6d18>] lba_fixup_bus+0x110/0x428
 [<00000000102b8c48>] pci_scan_slot+0x58/0xe8
 [<0000000010121624>] pcibios_fixup_bus+0x54/0x80
 [<00000000102b8d3c>] pci_scan_child_bus+0x64/0x118
 [<0000000010300f04>] class_device_create_file+0x2c/0x40
 [<00000000102b9100>] pci_scan_bus_parented+0x2b8/0x2d8
 [<00000000102ae708>] kobject_hotplug+0x298/0x3d0

Badness in smp_call_function at arch/parisc/kernel/smp.c:342
Backtrace:
 [<000000001019abec>] check_spinlock_acquired+0x24/0xb8
 [<00000000101147e8>] dump_stack+0x20/0x38
 [<00000000101209d8>] smp_call_function+0xd8/0x4c0
 [<0000000010115ecc>] enable_cpu_irq+0x74/0xb0
 [<0000000010116aa8>] setup_irq+0x170/0x198
 [<00000000102b6f1c>] pci_bus_read_config_byte+0x8c/0xe0
 [<0000000010116c04>] request_irq+0x134/0x178
 [<00000000102c20ec>] iosapic_xlate_pin+0xc4/0xe8
 [<00000000102c272c>] iosapic_fixup_irq+0x14c/0x218
 [<00000000102c6d18>] lba_fixup_bus+0x110/0x428
 [<00000000102b8c48>] pci_scan_slot+0x58/0xe8
 [<0000000010121624>] pcibios_fixup_bus+0x54/0x80
 [<00000000102b8d3c>] pci_scan_child_bus+0x64/0x118
 [<0000000010300f04>] class_device_create_file+0x2c/0x40
 [<00000000102b9100>] pci_scan_bus_parented+0x2b8/0x2d8
 [<00000000102ae708>] kobject_hotplug+0x298/0x3d0

Badness in smp_call_function at arch/parisc/kernel/smp.c:342
Backtrace:
 [<000000001019abec>] check_spinlock_acquired+0x24/0xb8
 [<00000000101147e8>] dump_stack+0x20/0x38
 [<00000000101209d8>] smp_call_function+0xd8/0x4c0
 [<0000000010115ecc>] enable_cpu_irq+0x74/0xb0
 [<0000000010116aa8>] setup_irq+0x170/0x198
 [<00000000102b6f1c>] pci_bus_read_config_byte+0x8c/0xe0
 [<0000000010116c04>] request_irq+0x134/0x178
 [<00000000102c20ec>] iosapic_xlate_pin+0xc4/0xe8
 [<00000000102c272c>] iosapic_fixup_irq+0x14c/0x218
 [<00000000102c6d18>] lba_fixup_bus+0x110/0x428
 [<00000000102b8c48>] pci_scan_slot+0x58/0xe8
 [<0000000010121624>] pcibios_fixup_bus+0x54/0x80
 [<00000000102b8d3c>] pci_scan_child_bus+0x64/0x118
 [<0000000010300f04>] class_device_create_file+0x2c/0x40
 [<00000000102b9100>] pci_scan_bus_parented+0x2b8/0x2d8
 [<00000000102ae708>] kobject_hotplug+0x298/0x3d0

Badness in smp_call_function at arch/parisc/kernel/smp.c:342
Backtrace:
 [<000000001019abec>] check_spinlock_acquired+0x24/0xb8
 [<00000000101147e8>] dump_stack+0x20/0x38
 [<00000000101209d8>] smp_call_function+0xd8/0x4c0
 [<0000000010115ecc>] enable_cpu_irq+0x74/0xb0
 [<0000000010116aa8>] setup_irq+0x170/0x198
 [<00000000102b6f1c>] pci_bus_read_config_byte+0x8c/0xe0
 [<0000000010116c04>] request_irq+0x134/0x178
 [<00000000102c20ec>] iosapic_xlate_pin+0xc4/0xe8
 [<00000000102c272c>] iosapic_fixup_irq+0x14c/0x218
 [<00000000102c6d18>] lba_fixup_bus+0x110/0x428
 [<00000000102b8c48>] pci_scan_slot+0x58/0xe8
 [<0000000010121624>] pcibios_fixup_bus+0x54/0x80
 [<00000000102b8d3c>] pci_scan_child_bus+0x64/0x118
 [<0000000010300f04>] class_device_create_file+0x2c/0x40
 [<00000000102b9100>] pci_scan_bus_parented+0x2b8/0x2d8
 [<00000000102ae708>] kobject_hotplug+0x298/0x3d0

iosapic: no IRTE for 0000:00:04.0 (IRQ not connected?)
Badness in smp_call_function at arch/parisc/kernel/smp.c:342
Backtrace:
 [<0000000010153e40>] __call_console_drivers+0x98/0xc8
 [<00000000101147e8>] dump_stack+0x20/0x38
 [<00000000101209d8>] smp_call_function+0xd8/0x4c0
 [<0000000010115ecc>] enable_cpu_irq+0x74/0xb0
 [<0000000010116aa8>] setup_irq+0x170/0x198
 [<00000000102b6f1c>] pci_bus_read_config_byte+0x8c/0xe0
 [<0000000010116c04>] request_irq+0x134/0x178
 [<00000000102c20ec>] iosapic_xlate_pin+0xc4/0xe8
 [<00000000102c272c>] iosapic_fixup_irq+0x14c/0x218
 [<00000000102c6d18>] lba_fixup_bus+0x110/0x428
 [<00000000102b8c48>] pci_scan_slot+0x58/0xe8
 [<0000000010121624>] pcibios_fixup_bus+0x54/0x80
 [<00000000102b8d3c>] pci_scan_child_bus+0x64/0x118
 [<0000000010300f04>] class_device_create_file+0x2c/0x40
 [<00000000102b9100>] pci_scan_bus_parented+0x2b8/0x2d8
 [<00000000102ae708>] kobject_hotplug+0x298/0x3d0

LBA version TR4.0 (0x5) found at 0xffffffffbffe2000
LBA version TR4.0 (0x5) found at 0xffffffffbffe4000
LBA version TR4.0 (0x5) found at 0xffffffffbffe8000
Badness in smp_call_function at arch/parisc/kernel/smp.c:342
Backtrace:
 [<000000001010d18c>] __udivdi3+0x1c/0x30
 [<00000000101147e8>] dump_stack+0x20/0x38
 [<00000000101209d8>] smp_call_function+0xd8/0x4c0
 [<0000000010115ecc>] enable_cpu_irq+0x74/0xb0
 [<0000000010116aa8>] setup_irq+0x170/0x198
 [<00000000102b6f1c>] pci_bus_read_config_byte+0x8c/0xe0
 [<0000000010116c04>] request_irq+0x134/0x178
 [<00000000102c20ec>] iosapic_xlate_pin+0xc4/0xe8
 [<00000000102c272c>] iosapic_fixup_irq+0x14c/0x218
 [<00000000102c6d18>] lba_fixup_bus+0x110/0x428
 [<00000000102b8c48>] pci_scan_slot+0x58/0xe8
 [<0000000010121624>] pcibios_fixup_bus+0x54/0x80
 [<00000000102b8d3c>] pci_scan_child_bus+0x64/0x118
 [<0000000010300f04>] class_device_create_file+0x2c/0x40
 [<00000000102b9100>] pci_scan_bus_parented+0x2b8/0x2d8
 [<00000000101543ac>] printk+0x3c/0x50

LBA version TR4.0 (0x5) found at 0xffffffffbffea000
Badness in smp_call_function at arch/parisc/kernel/smp.c:342
Backtrace:
 [<000000001010d18c>] __udivdi3+0x1c/0x30
 [<00000000101147e8>] dump_stack+0x20/0x38
 [<00000000101209d8>] smp_call_function+0xd8/0x4c0
 [<0000000010115ecc>] enable_cpu_irq+0x74/0xb0
 [<0000000010116aa8>] setup_irq+0x170/0x198
 [<00000000102b6f1c>] pci_bus_read_config_byte+0x8c/0xe0
 [<0000000010116c04>] request_irq+0x134/0x178
 [<00000000102c20ec>] iosapic_xlate_pin+0xc4/0xe8
 [<00000000102c272c>] iosapic_fixup_irq+0x14c/0x218
 [<00000000102c6d18>] lba_fixup_bus+0x110/0x428
 [<00000000102b8c48>] pci_scan_slot+0x58/0xe8
 [<0000000010121624>] pcibios_fixup_bus+0x54/0x80
 [<00000000102b8d3c>] pci_scan_child_bus+0x64/0x118
 [<0000000010300f04>] class_device_create_file+0x2c/0x40
 [<00000000102b9100>] pci_scan_bus_parented+0x2b8/0x2d8
 [<00000000101543ac>] printk+0x3c/0x50

LBA version TR4.0 (0x5) found at 0xffffffffbfff0000
LBA version TR4.0 (0x5) found at 0xffffffffbfff4000
LBA version TR4.0 (0x5) found at 0xffffffffbfff8000
LBA version TR4.0 (0x5) found at 0xfffffffffece0000
LBA version TR4.0 (0x5) found at 0xfffffffffece4000
LBA version TR4.0 (0x5) found at 0xfffffffffece8000
LBA version TR4.0 (0x5) found at 0xfffffffffecf0000
LBA version TR4.0 (0x5) found at 0xfffffffffecf4000
Badness in smp_call_function at arch/parisc/kernel/smp.c:342
Backtrace:
 [<000000001010d18c>] __udivdi3+0x1c/0x30
 [<00000000101147e8>] dump_stack+0x20/0x38
 [<00000000101209d8>] smp_call_function+0xd8/0x4c0
 [<0000000010115ecc>] enable_cpu_irq+0x74/0xb0
 [<0000000010116aa8>] setup_irq+0x170/0x198
 [<00000000102b6f1c>] pci_bus_read_config_byte+0x8c/0xe0
 [<0000000010116c04>] request_irq+0x134/0x178
 [<00000000102c20ec>] iosapic_xlate_pin+0xc4/0xe8
 [<00000000102c272c>] iosapic_fixup_irq+0x14c/0x218
 [<00000000102c6d18>] lba_fixup_bus+0x110/0x428
 [<00000000102b8c48>] pci_scan_slot+0x58/0xe8
 [<0000000010121624>] pcibios_fixup_bus+0x54/0x80
 [<00000000102b8d3c>] pci_scan_child_bus+0x64/0x118
 [<0000000010300f04>] class_device_create_file+0x2c/0x40
 [<00000000102b9100>] pci_scan_bus_parented+0x2b8/0x2d8
 [<00000000101543ac>] printk+0x3c/0x50

LBA version TR4.0 (0x5) found at 0xfffffffffecf8000
Badness in smp_call_function at arch/parisc/kernel/smp.c:342
Backtrace:
 [<0000000010107074>] intr_return+0x0/0x24
 [<000000001010d18c>] __udivdi3+0x1c/0x30
 [<00000000101147e8>] dump_stack+0x20/0x38
 [<00000000101209d8>] smp_call_function+0xd8/0x4c0
 [<0000000010115ecc>] enable_cpu_irq+0x74/0xb0
 [<0000000010116aa8>] setup_irq+0x170/0x198
 [<00000000102b6f1c>] pci_bus_read_config_byte+0x8c/0xe0
 [<0000000010116c04>] request_irq+0x134/0x178
 [<00000000102c20ec>] iosapic_xlate_pin+0xc4/0xe8
 [<00000000102c272c>] iosapic_fixup_irq+0x14c/0x218
 [<00000000102c6d18>] lba_fixup_bus+0x110/0x428
 [<00000000102b8c48>] pci_scan_slot+0x58/0xe8
 [<0000000010121624>] pcibios_fixup_bus+0x54/0x80
 [<00000000102b8d3c>] pci_scan_child_bus+0x64/0x118
 [<0000000010300f04>] class_device_create_file+0x2c/0x40
 [<00000000102b9100>] pci_scan_bus_parented+0x2b8/0x2d8

SCSI subsystem initialized
unwind_init: start =3D 0x104a6300, end =3D 0x104c9d70, entries =3D 9127
Performance monitoring counters enabled for Unknown machine
Initializing Cryptographic API
Soft power switch support not available.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 17 ports, IRQ sharing enabled=

ttyS0 at MMIO 0xffffffff80000000 (irq =3D 132) is a 16550A
ttyS1 at MMIO 0xffffffff80000008 (irq =3D 132) is a 16450
ttyS2 at MMIO 0xffffffff80000010 (irq =3D 132) is a 16550A
ttyS3 at MMIO 0xffffffff80000038 (irq =3D 132) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 1.1.13 (December 15, 2004)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 65 at ffffffff80003000, 00:30:6E:1C:B2:0B=
,
IRQ 128.
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) bloc=
k.
tulip1: ***WARNING***: No MII transceiver found!
eth1: Digital DS21143 Tulip rev 65 at ffffffff8a000000, 00:30:6E:21:14:B4=
,
IRQ 384.
sym0: <895> rev 0x1 at pci 0000:00:01.0 irq 129
sym0: No NVRAM, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
sym0: SCSI BUS mode change from SE to SE.
scsi0 : sym-2.1.18n
sym0: SCSI BUS has been reset.
elevator: using anticipatory as default io scheduler
  Vendor: SEAGATE   Model: ST39103LW         Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:8:0: tagged command queuing enabled, command queue depth 16.
 target0:0:8: Beginning Domain Validation
sym0:8: wide asynchronous.
sym0:8: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
 target0:0:8: Domain Validation skipping write tests
 target0:0:8: Ending Domain Validation
sym1: <875> rev 0x37 at pci 0000:00:02.0 irq 130
sym1: No NVRAM, ID 7, Fast-20, SE, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.1.18n
sym2: <875> rev 0x37 at pci 0000:00:02.1 irq 131
sym2: No NVRAM, ID 7, Fast-20, SE, parity checking
sym2: SCSI BUS has been reset.
scsi2 : sym-2.1.18n
st: Version 20041025, fixed bufsize 32768, s/g segs 256
SCSI device sda: 17783112 512-byte hdwr sectors (9105 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 17783112 512-byte hdwr sectors (9105 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 >
Attached scsi disk sda at scsi0, channel 0, id 8, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 8, lun 0,  type 0
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: md driver 0.90.1 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27
NET: Registered protocol family 2
IP: routing cache hash table of 8192 buckets, 192Kbytes
TCP: Hash tables configured (established 131072 bind 43690)
NET: Registered protocol family 1
NET: Registered protocol family 17
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: Badness in smp_call_function at arch/parisc=
/kernel/smp.c:342
Backtrace:
 [<00000000101147e8>] dump_stack+0x20/0x38
 [<00000000101209d8>] smp_call_function+0xd8/0x4c0
 [<00000000101133f0>] flush_data_cache+0x38/0x70
 [<0000000010111f78>] free_initmem+0x78/0x560
 [<0000000010111c74>] init+0x2c4/0x478
 [<000000001010647c>] ret_from_kernel_thread+0x24/0x38

320k freed
INIT: version 2.86 booting
Usage: vt-is-UTF8 [option]
valid options are:
        -q  --quiet    don't print result
        -h --help      display this help text and exit
        -V --version   display version information and exit
Activating swap.
Adding 250872k swap on /dev/sda2.  Priority:-1 extents:1
Checking root file system...
fsck 1.35 (28-Feb-2004)
/dev/sda5: clean, 68285/203008 files, 302884/406012 blocks (check in 3 mo=
unts)
EXT3 FS on sda5, internal journal
System time was Tue Jan  4 13:23:20 UTC 2005.

Any idea?

TIA,
    Joel


-------------------------------------------------------------------------=
--
Tiscali solde! 1 mois et activation Gratuits, modem =E0 9,99=80
http://reg.tiscali.be/adsl/default.asp?lg=3DFR



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Subject: Re: [parisc-linux] DIFF use 6-regs in copy_user_page_asm
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Xref: news.gmane.org gmane.linux.ports.parisc:22247

On Tue January 4 2005 00:13, Randolph Chung wrote:
> > This patch adds one more cycle between the load and store of a
> > given register by using three pairs of registers instead of two.
> > I had previously quoted one of the PA-8xxx papers that indicated
> > L1 cache was 2 cycles latency.
> > With this diff, the unrolled part of the loop now meets that.
> > The prolog and epilogue obviously cannot.
> > 
> > If anyone can show me a workload that improves with this diff,
> > I'll apply it. Otherwise it's just an academic excercise.
> 
> i'd like to see numbers too, but i doubt you will see any. it appears
> that at least newer PA cpus do a sufficient amount of internal
> instruction reordering that you don't see a difference as long as there
> are enough pending instructions to keep the pipeline busy.
> 
One other possibility to keep in mind when testing: this is an
io sequence, no heavy register-register computations.

If the 4-regs + internal reordering has already saturated the
cpu-external busses...

Then even if the cpu-core can execute the 6-regs + internal
reordering more effectively, you will never see it outside
of the cpu.

You might have to borrow a buss analyzer from the hardware
lab to see if this is effecting your tests.

Mike
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Subject: Re: [parisc-linux] DIFF use 6-regs in copy_user_page_asm
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On Tue, Jan 04, 2005 at 08:51:19AM -0600, Michael S. Zick wrote:
> One other possibility to keep in mind when testing: this is an
> io sequence, no heavy register-register computations.

Not entirely. Sure, to load data into cache it's "io".
But the bulk of the loop is to move data from one cacheline
to another.

> You might have to borrow a buss analyzer from the hardware
> lab to see if this is effecting your tests.

I don't. If 6-regs works better then I use it.
If CPU performance counter support worked, we could figure
out where the bottlenecks were for both cases.

grant
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Op maandag 3 januari 2005 10:42, schreef Martin-=C9ric Racine:
> On Mon, 3 Jan 2005, Matthew Wilcox wrote:
> > On Thu, Dec 30, 2004 at 04:40:38PM +0200, Martin-=C9ric Racine wrote:
> > > On Thu, 30 Dec 2004, Martin-=C9ric Racine wrote:
> > > > On Thu, 30 Dec 2004, Martin-=C9ric Racine wrote:
> > > > However, support for the front-panel LEDs and switches is BROKEN in
> > > > 2.6.10-pa1: when I press the power switch, it kills the AC power
> > > > instead of sending a signal to the kernel to shut itself down.  OUC=
H!
> > > >  The power/status LED is also off.
> > >
> > > This is still broken in 2.6.10-pa2 as well.
> >
> > On which machine?  It works fine on my 725 and c3600.
>
> 712.

On my 712/80 with a 2.6.9-pa1 it works fine.


=2D-=20

 Greetings, Michiel Broek

mbroek@mbse.dds.nl  or  Fidonet 2:280/2802 to Michiel Broek.
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On Tue, Jan 04, 2005 at 11:42:44AM -0600, Michael S. Zick wrote:
> > I don't. If 6-regs works better then I use it.
> Agreed,
> If you can find a difference now.

I can using CR16. That's what I was proposing before.

> I was speaking of the other case:
> If they appear to work the same now.

Yes, but I don't need an analyzer to guess at what might be causing
the bottleneck. The "Linux Way" is to keep trying different variants
until we find a better one (or get fed up). I know using an analyzer
is more precise _once_ it's setup.

Joel,
I've hacked your cpup1.c and committed it build-tools.
Please send me diffs in the future.
You would have noticed that you reference %r26 directly in two
of the asm statements.

The new version implements most of what I was proposing:
o use CR16 to measure copy_user_page_asm()
o run multiple iterations to avoid page faults/TLB activity

o drops -DV1 code (4ld/4st in 64-bit case)
o implements -DUSE6REGS
o uses 64MB src/dest buffer

grundler <536>gcc -O2 -o cpup0 cpup.c
grundler <537>gcc -march=2.0 -DLP64 -o cpup2 cpup.c
grundler <538>gcc -march=2.0 -DLP64 -DDUSE6REGS -o cpup3 cpup.c
grundler <539>./cpup0
          First Loop : min  14393  avg  17156  median  16219
         Later Loops : min   9696  avg  10819  median  10432
grundler <540>./cpup2
          First Loop : min  11381  avg  14120  median  13168
         Later Loops : min   5844  avg   7695  median   7595
grundler <541>./cpup3
          First Loop : min  11441  avg  14102  median  13167
         Later Loops : min   5898  avg   7702  median   7594

This might be useful for measuring cost of TLB insertion too.

Please verify the code is generating the stats properly before
taking the above numbers as The Truth.
(650 Mhz A500 running SMP 2.6.10-rc3-pa6)

I also noticed that even this gets different results on the first
vs successive invocations:
grundler <545>./cpup3
          First Loop : min  11277  avg  17749  median  13143
         Later Loops : min   5806  avg   8156  median   7589
grundler <546>./cpup3
          First Loop : min  11217  avg  14250  median  13154
         Later Loops : min   5904  avg   7726  median   7604
grundler <547>./cpup3
          First Loop : min  11528  avg  14147  median  13162
         Later Loops : min   5877  avg   7722  median   7600
grundler <548>./cpup3
          First Loop : min  11548  avg  14202  median  13177
         Later Loops : min   5866  avg   7727  median   7600
grundler <549>./cpup3
          First Loop : min  11577  avg  14150  median  13173
         Later Loops : min   5877  avg   7729  median   7607

Ignoring the first invocation, the results are quite precise: +- 4/7725

Adding another "ldw 192(%0), %%r0" to the bottom of the loop
reduced that even a bit more. We only prefectch one of the
two cachelines processed in the loop before.
The 5th run output was:
grundler <561>./cpup3 
          First Loop : min   9831  avg  12950  median  12000
         Later Loops : min   5790  avg   7529  median   7375

hth,
grant
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On Mon, Jan 03, 2005 at 10:13:42PM -0800, Randolph Chung wrote:
> i'd like to see numbers too, but i doubt you will see any.

I hope the new cpup.c will help us provide precise values.


[ The following is more intended for folks like Joel than Randolph.
 I'm pretty sure Randolph understands how CPUs work. ]

>  it appears
> that at least newer PA cpus do a sufficient amount of internal
> instruction reordering that you don't see a difference as long as there
> are enough pending instructions to keep the pipeline busy.

The pipeline on PA-8x00 can load 4 instructions at a time.
How those 4 instructions get executed depend on interlocks (e.g.
register is in still use by previous insn) and if the CPU/mem units are
available.  AFAIK, PA8x00 processors support 2 loads/cycle,
2 stores/cycle, 2 shift+merge ops/cycle, 2 FP Div/cycle, etc. 
"Keeping the pipeline busy" is just as much a function of instruction
scheduling by programmer/compiler as re-ordering by the CPU.
One really needs to keep track of which resources are available.

Anytime a resource is not available, the pipeline "stalls". 
ia64 calls this "bubbles" and the best description I've found
of "bubbles" is in the MySQL perf paper by Philippe Bonnet:
	http://www.gelato.org/resources/bookspapers.php

(or http://www.gelato.org/pdf/mysql_itanium2_perf.pdf)

While parisc might be more primitive in how it deals with "stalls"
than ia64, I expect most of the same principles apply to both when
writing code.

grant
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> The pipeline on PA-8x00 can load 4 instructions at a time.
> How those 4 instructions get executed depend on interlocks (e.g.
> register is in still use by previous insn) and if the CPU/mem units are
> available.  AFAIK, PA8x00 processors support 2 loads/cycle,
> 2 stores/cycle, 2 shift+merge ops/cycle, 2 FP Div/cycle, etc. 
> "Keeping the pipeline busy" is just as much a function of instruction
> scheduling by programmer/compiler as re-ordering by the CPU.
> One really needs to keep track of which resources are available.

This is what the GCC machine definitions says:

;; The PA8000 has a large (56) entry reorder buffer that is split between
;; memory and non-memory operations.
;;
;; The PA8000 can issue two memory and two non-memory operations per cycle to
;; the function units, with the exception of branches and multi-output
;; instructions.  The PA8000 can retire two non-memory operations per cycle
;; and two memory operations per cycle, only one of which may be a store.
;;
;; Given the large reorder buffer, the processor can hide most latencies.
;; According to HP, they've got the best results by scheduling for retirement
;; bandwidth with limited latency scheduling for floating point operations.
;; Latency for integer operations and memory references is ignored.
;;
;;
;; We claim floating point operations have a 2 cycle latency and are
;; fully pipelined, except for div and sqrt which are not pipelined and
;; take from 17 to 31 cycles to complete.
;;
;; It's worth noting that there is no way to saturate all the functional
;; units on the PA8000 as there is not enough issue bandwidth.

Comments?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Grant,

> Can folks try this on PA8000 and PA82000 for me?
> Check /proc/cpuinfo if you aren't sure what you have.

processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8200 (PCX-U+)
cpu MHz         : 200.000000
model           : 9000/782/C200+
model name      : Raven U 200 (9000/780/C200)
hversion        : 0x000059d0
sversion        : 0x00000481
I-cache         : 512 KB
D-cache         : 1024 KB (WB, 0-way associative)
ITLB entries    : 120
DTLB entries    : 120 - shared with ITLB
bogomips        : 395.26
software id     : 2005736878

> Should be a simple cut/paste of 4 lines to a shell prompt:
> 
> gcc -O2 -o cpup0 cpup.c
> gcc -O2 -march=2.0 -DLP64 -o cpup2 cpup.c
> gcc -O2 -march=2.0 -DLP64 -DUSE6REGS -o cpup3 cpup.c
> for i in 1 2 3 4 5; do echo TEST $i; ./cpup0; ./cpup2; ./cpup3; done

This is on a 64-bit kernel:
$ uname -a
Linux vega 2.6.10-pa3 #1 Sun Jan 2 14:28:36 MST 2005 parisc64 GNU/Linux

TEST 1
          First Loop : min   9990  avg  11444  median  10352
         Later Loops : min   6290  avg   8673  median   8885
          First Loop : min   8758  avg  10370  median   9312
         Later Loops : min   5842  avg   7168  median   7024
          First Loop : min   8701  avg  10277  median   9215
         Later Loops : min   5670  avg   7244  median   7124
TEST 2
          First Loop : min   9990  avg  11451  median  10353
         Later Loops : min   6197  avg   8669  median   8880
          First Loop : min   8748  avg  10379  median   9318
         Later Loops : min   5768  avg   7166  median   7022
          First Loop : min   8657  avg  10280  median   9208
         Later Loops : min   5773  avg   7239  median   7123
TEST 3
          First Loop : min   9993  avg  11442  median  10353
         Later Loops : min   6278  avg   8670  median   8880
          First Loop : min   8745  avg  10408  median   9318
         Later Loops : min   5804  avg   7163  median   7023
          First Loop : min   8681  avg  10340  median   9266
         Later Loops : min   5663  avg   7238  median   7120
TEST 4
          First Loop : min   9990  avg  11453  median  10347
         Later Loops : min   6282  avg   8661  median   8877
          First Loop : min   8751  avg  10400  median   9324
         Later Loops : min   5750  avg   7171  median   7024
          First Loop : min   8622  avg  10283  median   9213
         Later Loops : min   5680  avg   7235  median   7119
TEST 5
          First Loop : min  10032  avg  11442  median  10348
         Later Loops : min   6224  avg   8688  median   8884
          First Loop : min   8799  avg  10396  median   9323
         Later Loops : min   5751  avg   7165  median   7021
          First Loop : min   8622  avg  10286  median   9221
         Later Loops : min   5653  avg   7240  median   7120



This is on a 32-bit kernel:
$ uname -a
Linux vega 2.6.10-pa5 #1 Wed Jan 5 01:14:00 MST 2005 parisc GNU/Linux

TEST 1
          First Loop : min  10924  avg  11555  median  11090
         Later Loops : min   7744  avg   8196  median   8130
          First Loop : min   9584  avg  10251  median   9790
         Later Loops : min   6451  avg   6836  median   6784
          First Loop : min   9487  avg  10104  median   9673
         Later Loops : min   6202  avg   6604  median   6550
TEST 2
          First Loop : min  10927  avg  11553  median  11097
         Later Loops : min   7687  avg   8193  median   8130
          First Loop : min   9594  avg  10267  median   9790
         Later Loops : min   6451  avg   6853  median   6784
          First Loop : min   9477  avg  10117  median   9654
         Later Loops : min   6243  avg   6606  median   6549
TEST 3
          First Loop : min  10943  avg  11549  median  11104
         Later Loops : min   7670  avg   8197  median   8130
          First Loop : min   9607  avg  10255  median   9790
         Later Loops : min   6451  avg   6836  median   6783
          First Loop : min   9487  avg  10144  median   9674
         Later Loops : min   6216  avg   6604  median   6550
TEST 4
          First Loop : min  10924  avg  11527  median  11083
         Later Loops : min   6848  avg   8176  median   8118
          First Loop : min   9610  avg  10260  median   9810
         Later Loops : min   6451  avg   6837  median   6784
          First Loop : min   9493  avg  10140  median   9670
         Later Loops : min   6215  avg   6605  median   6552
TEST 5
          First Loop : min  10924  avg  11538  median  11087
         Later Loops : min   7703  avg   8191  median   8132
          First Loop : min   9583  avg  10236  median   9793
         Later Loops : min   6451  avg   6837  median   6783
          First Loop : min   9487  avg  10132  median   9674
         Later Loops : min   6171  avg   6606  median   6550


The K460 is a 8000 processor ... I'll see if I can get the K460
installed and updated to give you results from that system as well.  I
am also working on getting you results from a 715/100 
as well (currently in the middle of a new debian install).

Thanks,

- Ryan

> thanks,
> grant
> _______________________________________________
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On Wed, Jan 05, 2005 at 01:40:56AM -0700, Ryan Bradetich wrote:
> This is on a 64-bit kernel:
> $ uname -a
> Linux vega 2.6.10-pa3 #1 Sun Jan 2 14:28:36 MST 2005 parisc64 GNU/Linux
> 
> TEST 1
>           First Loop : min   9990  avg  11444  median  10352
>          Later Loops : min   6290  avg   8673  median   8885
...


thanks for the results!

> This is on a 32-bit kernel:
> $ uname -a
> Linux vega 2.6.10-pa5 #1 Wed Jan 5 01:14:00 MST 2005 parisc GNU/Linux
> 
> TEST 1
>           First Loop : min  10924  avg  11555  median  11090
>          Later Loops : min   7744  avg   8196  median   8130
>           First Loop : min   9584  avg  10251  median   9790
>          Later Loops : min   6451  avg   6836  median   6784
>           First Loop : min   9487  avg  10104  median   9673
>          Later Loops : min   6202  avg   6604  median   6550

Interesting that cpup3 is slightly faster than cpup2 with
the 32-bit kernel. Since user space is 32-bit always, I wouldn't
have expected a difference in "Later Loops" output.

> The K460 is a 8000 processor ... I'll see if I can get the K460
> installed and updated to give you results from that system as well.  I

Well, don't sweat it. Others might have PA8000 box already up and running.

> am also working on getting you results from a 715/100 
> as well (currently in the middle of a new debian install).

715 is PA1.1. cpup2/3 won't work there.
It would be worth trying variants of cpup0 (32-bit) scheduling
on PA1.1 machines. I'll leave that as an excercise for others.

thanks,
grant
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On Tue, Jan 04, 2005 at 10:54:12PM -0700, Grant Grundler wrote:
> 	add prefetching to copy_user_page_asm
> 	matches asm now checked into build-tools/cpup.c

I committed a new version of copy_user_page_asm based on
the results of build-tools/cpup.c.

Here's the output from the last set of cpup2 (4regs) run:
grundler <577>while :; do ./cpup2; done
          First Loop : min   9247  avg  12037  median  11250
         Later Loops : min   5568  avg   7006  median   6906
          First Loop : min   9180  avg  12051  median  11244
         Later Loops : min   5557  avg   7003  median   6904
          First Loop : min   9204  avg  12027  median  11239
         Later Loops : min   5556  avg   7002  median   6901
          First Loop : min   9197  avg  12032  median  11237
         Later Loops : min   5546  avg   6996  median   6901
          First Loop : min   9300  avg  12032  median  11225
         Later Loops : min   5584  avg   7001  median   6901

It's essentially indistiguishable from cpup3 (6 regs) routine:
grundler <579>while :; do ./cpup3; done
          First Loop : min   9188  avg  11992  median  11223
         Later Loops : min   5493  avg   7002  median   6874
          First Loop : min   9213  avg  11988  median  11224
         Later Loops : min   5487  avg   7004  median   6873
          First Loop : min   9252  avg  11991  median  11204
         Later Loops : min   5487  avg   7004  median   6874
          First Loop : min   9228  avg  12021  median  11219
         Later Loops : min   5550  avg   7003  median   6879
          First Loop : min   9200  avg  11994  median  11215
         Later Loops : min   5514  avg   6997  median   6874

Which tells me the L1 cache is accessible in 1 cycle on PA8700.
And if other CPU implementations need 2 cycles, it wouldn't
hurt to commit the 6regs version.

Can folks try this on PA8000 and PA82000 for me?
Check /proc/cpuinfo if you aren't sure what you have.

Should be a simple cut/paste of 4 lines to a shell prompt:

gcc -O2 -o cpup0 cpup.c
gcc -O2 -march=2.0 -DLP64 -o cpup2 cpup.c
gcc -O2 -march=2.0 -DLP64 -DUSE6REGS -o cpup3 cpup.c
for i in 1 2 3 4 5; do echo TEST $i; ./cpup0; ./cpup2; ./cpup3; done

Please post the output to the mailing list along with /proc/cpuinfo.

thanks,
grant
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Hello Grant,

> -- Original Message --
> Date: Tue, 4 Jan 2005 23:16:13 -0700
> From: Grant Grundler <grundler@parisc-linux.org>
> To: parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] more cpup.c results
> 
> 
> On Tue, Jan 04, 2005 at 10:54:12PM -0700, Grant Grundler wrote:
> > 	add prefetching to copy_user_page_asm
> > 	matches asm now checked into build-tools/cpup.c
> 
[...]
> Which tells me the L1 cache is accessible in 1 cycle on PA8700.
> And if other CPU implementations need 2 cycles, it wouldn't
> hurt to commit the 6regs version.
> 
> Can folks try this on PA8000 and PA82000 for me?
> Check /proc/cpuinfo if you aren't sure what you have.
> 
Unfortunately only pa8600 (n4k and b2k) ...

> Should be a simple cut/paste of 4 lines to a shell prompt:
> 
> gcc -O2 -o cpup0 cpup.c
> gcc -O2 -march=3D2.0 -DLP64 -o cpup2 cpup.c
> gcc -O2 -march=3D2.0 -DLP64 -DUSE6REGS -o cpup3 cpup.c
> for i in 1 2 3 4 5; do echo TEST $i; ./cpup0; ./cpup2; ./cpup3; done
> 
anyway here are some results from a b2k (runing obviously a 2.6.10-pa4 64=
bits):
# for i in 1 2 3 4 5; do echo TEST $i; ./cpup0; ./cpup2; ./cpup3; done
TEST 1
          First Loop : min  14462  avg  17576  median  15409
         Later Loops : min   6628  avg   8597  median   7953
          First Loop : min  10313  avg  13497  median  11727
         Later Loops : min   3581  avg   4843  median   4568
          First Loop : min  10714  avg  13703  median  11897
         Later Loops : min   3630  avg   5033  median   4778
TEST 2
          First Loop : min  14445  avg  17452  median  15428
         Later Loops : min   6616  avg   8605  median   7945
          First Loop : min  10358  avg  13510  median  11755
         Later Loops : min   3597  avg   4835  median   4567
          First Loop : min  10669  avg  13708  median  11885
         Later Loops : min   3618  avg   5034  median   4780
TEST 3
          First Loop : min  14459  avg  17437  median  15432
         Later Loops : min   6621  avg   8592  median   7943
          First Loop : min  10345  avg  13541  median  11732
         Later Loops : min   3584  avg   4853  median   4566
          First Loop : min  10658  avg  13695  median  11879
         Later Loops : min   3637  avg   5032  median   4775
TEST 4
          First Loop : min  14503  avg  17455  median  15429
         Later Loops : min   6605  avg   8595  median   7945
          First Loop : min  10265  avg  13515  median  11740
         Later Loops : min   3566  avg   4835  median   4562
          First Loop : min  10681  avg  13720  median  11886
         Later Loops : min   3651  avg   5035  median   4778
TEST 5
          First Loop : min  14472  avg  17460  median  15425
         Later Loops : min   6627  avg   8590  median   7938
          First Loop : min  10376  avg  13555  median  11742
         Later Loops : min   3597  avg   4843  median   4570
          First Loop : min  10684  avg  13689  median  11891
         Later Loops : min   3663  avg   5027  median   4775

hth,
      Joel

-------------------------------------------------------------------------=
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On Tue January 4 2005 18:00, John David Anglin wrote:

> 
> This is what the GCC machine definitions says:
> 

> ;;
> ;; It's worth noting that there is no way to saturate all the functional
> ;; units on the PA8000 as there is not enough issue bandwidth.
> 
> Comments?
>
Thanks,
That is what I tried to say but couldn't find the reference.

Mike
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On Tue, Jan 04, 2005 at 07:00:43PM -0500, John David Anglin wrote:
> Grant Grundler wrote:
> > The pipeline on PA-8x00 can load 4 instructions at a time.

My statement happens to be correct but is misleading.
And I misunderstood it too.

The system does "fetch" 4 insn at a time but can't execute/retire
4 mem ops at a time.  PCX-U can only handle two memory ops per cycle
as (correctly) described by the GCC machine definition below.


> This is what the GCC machine definitions says:

Thanks for digging this up. I definitely was confused about
some of the details.

> ;; The PA8000 has a large (56) entry reorder buffer that is split between
> ;; memory and non-memory operations.
> ;;
> ;; The PA8000 can issue two memory and two non-memory operations per cycle to
> ;; the function units, with the exception of branches and multi-output
> ;; instructions.  The PA8000 can retire two non-memory operations per cycle
> ;; and two memory operations per cycle, only one of which may be a store.

Yes, this is correct.  I'm told this is true for all PA-8x00 CPUs.

I was confused. The "load-store unit" describes one unit that can
only do one load or one store.

Each instruction queue is also divided into even and odd slots.
The functional units are assigned to either an even or odd slot.
Ie two loads in adjacent slots will use both load-store units.
two loads in odd slots will serialize. That shouldn't be an issue
for copy_user_page_asm but it would be good if gcc is aware of it.

Further, the PCX-U cache accesses are serialized when to the same cacheline.
The copy_user_page_asm loop should be restructured to interleave accesses
to the two 64 byte cachelines handled in each iteration of the loop.
This won't matter for stores at the "tail end" of the loop but will
help with the loads at the front of the loop.

> ;; Given the large reorder buffer, the processor can hide most latencies.

Yes. I'm told the re-order buffers (aka "memory ops queue") should be
sufficient to hide scheduling issues. So we don't have to sweat
too many details if we get it "close enough".

> ;; According to HP, they've got the best results by scheduling for retirement
> ;; bandwidth with limited latency scheduling for floating point operations.
> ;; Latency for integer operations and memory references is ignored.

Along this line, according to the specs, PCX-U has a "best case load
latency of three cycles".
This is because of "one cycle for address calculation and 2 cycles for
off chip cache access". Later CPUs are 2 cycles.
Restructuring the USE6REGs code might help PCX-U.

> ;; It's worth noting that there is no way to saturate all the functional
> ;; units on the PA8000 as there is not enough issue bandwidth.

Agreed.
But we do saturate the load-store units in the copy_user_page_asm code.
At least for short bursts.

hth,
grant
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Hello Ben, 

Because of following pb:
> The following message to  was undeliverable.
> The reason for the problem:
> 5.1.0 - Unknown address error 554-'Service unavailable; Client host [21=
3.205.37.211]
blocked using bl.spamcop.net;  Blocked - see http://www.spamcop.net/bl.sh=
tml?213.205.37.211'
>
> Final-Recipient: rfc822;bfisher@intech-intl.com
>Action: failed
> Status: 5.0.0 (permanent failure)
> Diagnostic-Code: smtp; 5.1.0 - Unknown address error 554-'Service unava=
ilable;
Client host [213.205.37.211] blocked > using bl.spamcop.net; Blocked - se=
e
http://www.spamcop.net/bl.shtml?213.205.37.211' (delivery attempts: 0)
> Reporting-MTA: dns; mail-r3.tiscali.it

I resent you my notice via p-l :-)
> -- Original Message --
> Date: Fri, 7 Jan 2005 10:25:26 +0100
> From: "Joel Soete" <soete.joel@tiscali.be>
> Subject: RE: [parisc-linux] Fwd: RE: Hp c3600 Gentoo Installation troub=
les
> To: "Ben Fisher" <bfisher@intech-intl.com>
> 
> 
> Hello Ben,
> 
> >
> > To eliminate other possibilities, I re-partitioned my disk according
to
> the
> > install manual (all primary) and started over.
> Cool (good idea :-)
> 
> >  After a few issues with
> > kernel compilation (I could not get the 64 bit version to work at all=
!
> -
> > no
> > hppa 64 bit gcc compiler, or something like that), I copied the compi=
led
> > kernel to the /boot directory, as well as everything else the guide
> > recommends.  After modifying the /etc/palo.conf file and running:
> >
> > # palo
> >
> > I get the following result:
> >
> > Palo version 1.2 root@LiveCD Wen Jan 5 21:35:19 EST 2005
> Oops '1.2 version'  now 1.5 (I do vaguely remember of an issue for 9Gb
disk
> but I don't remember exactly when it was fixed)
> It could be a good idea to ask also to build new LiveCd with this newer=

> palo?
> 
> > Partition Start (MB)  End (MB)   	ID   	Type
> > 1		1	16	f0	Palo
> > 2		17	78	83	EXT2
> > 3		79	1033	82	SWAP
> > 4		1034	8678	83	EXT2
> > IPL: ADDR 16384  Size 34816 Entry 0x0
> > Ko 0x0 ksz 0 k640 0x0 k64sz 0 rdo 0 rdsz 0
> > <2/kernel-2.6.7 ROOT=3D/dev/sda4 HOME=3D/>
> > IPL: ADDR 16384  Size 34816 Entry 0x0
> > Ko 0x0 ksz 0 k640 0x0 k64sz 0 rdo 0 rdsz 0
> > <2/kernel-2.6.7 ROOT=3D/dev/sda4 HOME=3D/>
> >
> Look good to me too
> 
> > I get the same thing after re-emerging palo, in hopes that something
was
> > installed wrong.
> >
> > After exiting, unmounting, and rebooting, I still get the same messag=
e:
> >
> > IPL error:  Bad LIF Magic
> >
> ???
> Excepted a bug of which I don't remember in palo, the only other possib=
ilty
> I can see is  that in fact you have 2 disk in your system?
> Linux using sda as the one at scsi id 5 and sdb the scsi id 6 palo woul=
d
> so now be installed on sda (id 5 );
> while in general for hp ux it is usual to choose as primary boot disk
the
> one at scsi id 6 (where alway stand hpux ipl but the rest of OS removed=
).
> 
> A way to verify would be to interupt the auto boot:
> Main Menu: sea ipl
> 
> would show your boot devices?
> 
Hth,
     Joel


-------------------------------------------------------------------------=
--
Tiscali solde! 1 mois et activation Gratuits, modem =E0 9,99=80
http://reg.tiscali.be/adsl/default.asp?lg=3DFR



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Hello,

 

I am having some issues to get  a J3516A network card (Digital-21440-AF
chipset) working under Linux on an A180C / 256MB ram / 9GB SCSI box.

 

I have tried with both kernel 2.4.17-32 and 2.6.8.1-1-32, including latest
apt-get upgrade to unstable, but still having the same issue.

 

Problem is as follows:

-network card has 2 ports which are assigned to eth1 and eth2 (internal
motherboard nic gets eth0)

-when cold booting the machine, if eth1 or eth2 have a network cable plugged
in, the moment linux tries to bring up the interface, complete system
freezes

-this also happens when issuing "ifup eth1" from the shell prompt: system
stops responding and I have to power cycle it

-problem doesn't happen if you bring up the interface without network cable,
then plug cable in

-once the nic has been enabled and cable plugged once, a software reboot
(ie: not pushing the button) doesn't get stuck when enabling interface again

 

I have been searching in the mailing list and the internet, looking for
related issues but couldn't find anything. Also thought it could be a broken
hardware issue, but I have reproduced this on three different machines (same
configuration)

 

Some extra information (from dmesg):

(..)

5. HP HSC-PCI Cards (4) at 0xfff84000 [8/4], versions 0x4, 0x0, 0x9d

(.)

Linux NET4.0 for Linux 2.4

(.)

Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)

tulip0: no phy info, aborting mtable build

tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.

eth0: Digital DS21143 Tulip rev 48 at 0xff00, 00:10:83:03:3A:92, IRQ 96.

tulip1:  MII transceiver #1 config 3100 status 7849 advertising 01e1.

eth1: Digital DS21140 Tulip rev 34 at 0x10000, 10:00:36:83:62:E4, IRQ 129.

tulip2:  MII transceiver #1 config 3100 status 7849 advertising 01e1.

eth2: Digital DS21140 Tulip rev 34 at 0x10080, 10:00:36:83:63:E4, IRQ 130.

(.)

 

Has anyone experienced similar issues? any clue how to make this card work
under Linux?, any help would be greatly appreciated!

 

Thanks

Dani


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<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Hello,<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I am having some issues to get &nbsp;a J3516A network =
card (Digital-21440-AF
chipset) working under Linux on an A180C / 256MB ram / 9GB SCSI =
box.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I have tried with both kernel 2.4.17-32 and =
2.6.8.1-1-32,
including latest apt-get upgrade to unstable, but still having the same =
issue.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Problem is as follows:<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>-network card has 2 ports which are assigned to eth1 =
and
eth2 (internal motherboard nic gets eth0)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>-when cold booting the machine, if eth1 or eth2 have =
a
network cable plugged in, the moment linux tries to bring up the =
interface,
complete system freezes<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>-this also happens when issuing &#8220;ifup =
eth1&#8221; from
the shell prompt: system stops responding and I have to power cycle =
it<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>-problem doesn&#8217;t happen if you bring up the =
interface
without network cable, then plug cable in<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>-once the nic has been enabled and cable plugged =
once, a
software reboot (ie: not pushing the button) doesn&#8217;t get stuck =
when
enabling interface again<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I have been searching in the mailing list and the =
internet, looking
for related issues but couldn&#8217;t find anything. Also thought it =
could be a
broken hardware issue, but I have reproduced this on three different =
machines
(same configuration)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Some extra information (from =
dmesg):<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>(&#8230;.)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>5. HP HSC-PCI Cards (4) at 0xfff84000 [8/4], versions =
0x4,
0x0, 0x9d<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>(&#8230;)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Linux NET4.0 for Linux =
2.4<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>(&#8230;)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Linux Tulip driver version 0.9.15-pre9 (Nov 6, =
2001)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>tulip0: no phy info, aborting mtable =
build<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>tulip0:&nbsp; MII transceiver #1 config 1000 status =
782d
advertising 01e1.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>eth0: Digital DS21143 Tulip rev 48 at 0xff00,
00:10:83:03:3A:92, IRQ 96.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>tulip1:&nbsp; MII transceiver #1 config 3100 status =
7849
advertising 01e1.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>eth1: Digital DS21140 Tulip rev 34 at 0x10000,
10:00:36:83:62:E4, IRQ 129.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>tulip2:&nbsp; MII transceiver #1 config 3100 status =
7849
advertising 01e1.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>eth2: Digital DS21140 Tulip rev 34 at 0x10080,
10:00:36:83:63:E4, IRQ 130.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>(&#8230;)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Has anyone experienced similar issues? any clue how =
to make
this card work under Linux?, any help would be greatly =
appreciated!<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Thanks<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Dani<o:p></o:p></span></font></p>

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Subject: Re: [parisc-linux] Re: NETFILTER_DEBUG break b2k 64bits (at least)[Wa
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Xref: news.gmane.org gmane.linux.ports.parisc:22261

> On Fri, Jan 07, 2005 at 03:11:19PM +0100, Joel Soete wrote:
> > In fact I always hesitate to use this 64 compiler because of this report:
> >
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2004-February/022335.h
> tml>
> > 
> > but never read it was fixed?
> 
> gcc-3.3-hppa64 has been updated 13 times since initial release.
> I expect a "changes" file exists to describe what
> each update brings. But I don't expect the change log to get posted
> to p-l mailing list for every package that gets updated.

As far as I know, the problem hasn't been fixed in GCC.  OPD generation
is done by the linker and dynamic linker.  There is a discussion here
<http://lists.parisc-linux.org/hypermail/parisc-linux/1723.html>.

Note that the hppa64 linker always creates dynamic binaries intended
to be loaded by a dynamic loader.  It doesn't know how to create a
fully static binary.  I don't fully understand the ins and outs of
how this is being handled with 64-bit kernels but I suspect that this
is why there are duplicates.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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John David Anglin wrote:
[...]
> 
> Note that the hppa64 linker always creates dynamic binaries intended
> to be loaded by a dynamic loader.  It doesn't know how to create a
> fully static binary.  I don't fully understand the ins and outs of
> how this is being handled with 64-bit kernels but I suspect that this
> is why there are duplicates.
> 
My pb is that the only smp system I can test is a N4k model which have afaik a pdc that can only boot a 64bit kernel.
Is there some alternate to boot a 32bit kernel on this kind (A, L, N, ...) system?

Thanks for info,
	Joel
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Hello everyone,

I have a HP C360 lying around with HP-SUX installed on it. Due to its loud 
fans, I didn't want to keep it on so I forgot about it. I believe I've 
read everything I can about running linux on hppa. In
http://hwdb.parisc-linux.org/view.php?type=pcimenu I found 3Dfx Banshee 
and Voodoo2 cards, which I have.

Does anyone know is this list the actual list of supported hardware? If 
so, does X work with Banshee and at what resolution? And the same 
questions apply for Voodoo2, too :)

p.s. any news on Visualize-FX4?

--
Jyry Suuntala 
<jyry@helzinki.net>
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On Saturday 08 January 2005 18:26, Jyry Suuntala wrote:
> Does anyone know is this list the actual list of supported hardware? If 
> so, does X work with Banshee and at what resolution? And the same 
> questions apply for Voodoo2, too :)

Vodoo2: 800x600x16bpp (1024x768x16bpp worked unreliable for me)
No idea about Banshee.

> p.s. any news on Visualize-FX4?

Not as I know... :-(

Helge
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Subject: Re: [parisc-linux] Banshee and Voodoo2
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On Sat, Jan 08, 2005 at 08:33:33PM +0100, Helge Deller wrote:
> > p.s. any news on Visualize-FX4?
> 
> Not as I know... :-(
> 

I've been working on a driver, based on the register list in the
x86 AGP driver, and some hints I got from the author of that driver. However,
as of yet, I've had no luck. Though, that's likely because it's taken
me quite a bit of time to become familiar with how the framebuffer
interfaces work.

The goal is a 24bpp raw, unaccelerated framebuffer... I'd be happy with
better, but I don't have enough information for that.

Cheers,
	Kyle



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On Sad, 2005-01-08 at 19:33, Helge Deller wrote:
> On Saturday 08 January 2005 18:26, Jyry Suuntala wrote:
> > Does anyone know is this list the actual list of supported hardware? If 
> > so, does X work with Banshee and at what resolution? And the same 
> > questions apply for Voodoo2, too :)
> 
> Vodoo2: 800x600x16bpp (1024x768x16bpp worked unreliable for me)
> No idea about Banshee.

I test it at 1024x768 on a PC. With the current XOrg the voodoo driver
limits are:

Voodoo1: 800x600x16bpp unaccelerated but pretty decent ram bandwidth so
its not bad. I think for 2D with some violence you could do 1024x768 but
it would be right on the DAC limits

Voodoo2: 1024x768x16bpp accelerated (including render acceleration). 

We have enough info to do full DRI for the Voodoo2 but nobody has been
sufficiently drunk to volunteer.

Alan



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On Sat, 8 Jan 2005 20:33:03 +0000
Matthew Wilcox <matthew@wil.cx> wrote:

> 
> I thought I should send a note to the mailing list about the interrupt
> work I've been doing.  Then I thought, "No, I should use the Wiki".  So
> I did ...

And that's very cool :)

A bit of info about the wiki access. Given the numerous defacing we had on
the wiki, I decided a few weeks ago to change a little the way
people are allowed to edit the wiki pages. There is a special page,
(PariscGroup) that contains the wiki names of the registered users allowed
to edit the wiki. Any user listed on that page can both see and edit it,
and create/change any other page. Registered users can see the content
of the PariscGroup page. By default users can't either see that page, nor
change or create any other page.

(A "registered user" is someone who created a wiki account, and thus got a
wiki name associated with it).

In brief, there's now a two-step way to change the wiki:
1) register an account
2) get your name added to the page by somebody already 'editor'. (I guess
that simply posting here may get you through that step, if you don't know
who to ask for).

I'm sad to have to narrow the wiki access, but this is the only simple and
efficient solution I've been able to figure out to get rid of the
spammers.

> http://wiki.parisc-linux.org/Interrupts
> 
> Feel free to make corrections or send me comments on stuff that isn't
> clear.

I've read that whole page and found it very interesting. Thanks to you, I
now have a better understanding of why I failed to do what you did ;^)

It's a very nice beginning for documenting how parisc interrupts work, and
it's very useful. Thanks again for writing it!

Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/
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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] pa_memcpy: 2 small question
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Hello Randolph,

I just studying your pa_memcpy code (always to see if I can use it to improve stuff that you suggested me: l*).
And I wonder understand some values in copy_dstalign():
[...]
in the shift computing:
         /* Calculate how to shift a word read at the memory operation
            aligned srcp to make it aligned for copy.  */
         sh_1 = 8 * (src % sizeof(unsigned int));
         sh_2 = 8 * sizeof(unsigned int) - sh_1;

what means '8' (== 2 * word size; i.e. 2 * 32 bit because MERGE use shrpw and so 2 (a pair of word)? )

next in
          switch (len % 4)
         {

is '4' because as mentioned in copy_dstalign() description this 'Handles _4_ words per loop'

Thanks in advance,
	Joel
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On Saturday 08 January 2005 12:26 pm, Jyry Suuntala wrote:
> Does anyone know is this list the actual list of supported hardware? If
> so, does X work with Banshee and at what resolution? And the same
> questions apply for Voodoo2, too :)

ive actually hooked a voodoo2 into my C360 and got Xorg working at 
1024x768 ... i also tried the obsidian voodoo2 (it's basically 2 voodoo2's on 
one card), but that kernel paniced (probably because of assumptions in the fb 
code that there's only 1 voodoo2 per card ... ?)
-mike
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Hi,

I have a HP B 180L running with Woody. Connecting the machine to an ethernet 
connection works very well. My problem is with

PPOE. I recently switched ISP and I now use ADSL. Since then, I am unable to 
access the Internet from this machine. I write

to this forum rather than to a general linux forum because when searching 
Google with "/dev/ppp: Resource temporarily

unavailable", I only get links related to PARISC.

I configured pppoe with pppoeconfig and it seems to go correctly. My problem 
is when I launch the connection. I can see my

connection with ifconfig, but I am unable to access the Internet. When I 
launch plog, I get the following messages:

mammoth:/home/dany# plog
Nov  9 03:16:34 mammoth pppd[392]: Using interface ppp0
Nov  9 03:16:34 mammoth pppd[392]: Connect: ppp0 <--> /dev/pts/0
Nov  9 03:16:34 mammoth pppd[392]: read: Resource temporarily unavailable
Nov  9 03:16:34 mammoth pppd[392]: read /dev/ppp: Resource temporarily 
unavailable
Nov  9 03:16:35 mammoth pppd[392]: read: Resource temporarily unavailable
Nov  9 03:16:35 mammoth pppd[392]: read /dev/ppp: Resource temporarily 
unavailable
Nov  9 03:16:35 mammoth pppd[392]: read: Resource temporarily unavailable
Nov  9 03:16:35 mammoth pppd[392]: read /dev/ppp: Resource temporarily 
unavailable
Nov  9 03:16:38 mammoth pppd[392]: Cannot determine ethernet address for 
proxy ARP
Nov  9 03:16:38 mammoth pppd[392]: local  IP address 67.70.77.230
Nov  9 03:16:38 mammoth pppd[392]: remote IP address 64.230.254.187
Nov  9 03:16:38 mammoth pppd[392]: primary   DNS address 206.47.244.89
Nov  9 03:16:38 mammoth pppd[392]: secondary DNS address 206.47.244.133
Nov  9 03:16:41 mammoth pppd[392]: read: Resource temporarily unavailable
Nov  9 03:16:41 mammoth pppd[392]: read /dev/ppp: Resource temporarily 
unavailable
Nov  9 03:16:44 mammoth pppd[392]: read: Resource temporarily unavailable
Nov  9 03:16:44 mammoth pppd[392]: read /dev/ppp: Resource temporarily 
unavailable


My network configuration is the following:

mammoth:/home/dany# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:60:B0:D0:45:CD
          inet addr:192.168.0.1  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7657 errors:1 dropped:0 overruns:0 frame:0
          TX packets:492 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:2038844 (1.9 MiB)  TX bytes:68461 (66.8 KiB)
          Interrupt:96 Base address:0xff00

eth1      Link encap:Ethernet  HWaddr 00:20:18:55:97:37
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:712 errors:0 dropped:0 overruns:0 frame:0
          TX packets:713 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:51334 (50.1 KiB)  TX bytes:45262 (44.2 KiB)
          Interrupt:97 Base address:0xfd00

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

ppp0      Link encap:Point-to-Point Protocol
          inet addr:67.70.77.230  P-t-P:64.230.254.187  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
          RX packets:33 errors:0 dropped:0 overruns:0 frame:0
          TX packets:35 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3
          RX bytes:1635 (1.5 KiB)  TX bytes:1353 (1.3 KiB)

My gateways are the following:

mammoth:/tmp# route -n -F
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use 
Iface
64.230.254.187  0.0.0.0         255.255.255.255 UH    0      0        0 ppp0
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
0.0.0.0         64.230.254.187  0.0.0.0         UG    0      0        0 ppp0

Does anybody have any idea what can prevent pppd from accessing the /dev/ppp 
resource?

Here is my list of process:

dany@mammoth:~$ ps aux
USER       PID %CPU %MEM   VSZ  RSS TTY      STAT START   TIME COMMAND
root         1  0.0  0.0  1548  584 ?        S    02:28   0:01 init
root         2  0.0  0.0     0    0 ?        SW   02:28   0:00 [keventd]
root         3  0.0  0.0     0    0 ?        SWN  02:28   0:00 
[ksoftirqd_CPU0]
root         4  0.0  0.0     0    0 ?        SW   02:28   0:00 [kswapd]
root         5  0.0  0.0     0    0 ?        SW   02:28   0:00 [bdflush]
root         6  0.0  0.0     0    0 ?        SW   02:28   0:00 [kupdated]
root         9  0.0  0.0     0    0 ?        SW   02:28   0:00 [scsi_eh_1]
root        10  0.0  0.0     0    0 ?        SW<  02:28   0:00 [mdrecoveryd]
root        11  0.0  0.0     0    0 ?        SW   02:28   0:00 [kjournald]
root        75  0.0  0.0     0    0 ?        SW   02:28   0:00 [kjournald]
root        76  0.0  0.0     0    0 ?        SW   02:28   0:00 [kjournald]
root       159  0.0  0.0  1692  732 ?        S    02:29   0:00 /sbin/syslogd
root       162  0.0  0.2  2636 1680 ?        S    02:29   0:01 /sbin/klogd
root       176  0.0  0.1  1868  840 ?        S    02:29   0:00 
/usr/sbin/dhcpd-2.2.x -q eth0
root       284  0.0  0.1  3600 1404 ?        S    02:29   0:00 
/usr/sbin/sshd
daemon     292  0.0  0.0  1812  704 ?        S    02:29   0:00 /usr/sbin/atd
root       295  0.0  0.1  2032  820 ?        S    02:29   0:00 
/usr/sbin/cron
root       301  0.0  0.3 73960 2904 ?        S    02:29   0:00 
/usr/sbin/apache
dany       304  0.0  0.1  2936 1464 tty1     S    02:29   0:00 -bash
root       305  0.0  0.0  1536  576 tty2     S    02:29   0:00 /sbin/getty 
38400 tty2
root       306  0.0  0.0  1536  576 tty3     S    02:29   0:00 /sbin/getty 
38400 tty3
root       307  0.0  0.0  1536  576 tty4     S    02:29   0:00 /sbin/getty 
38400 tty4
root       308  0.0  0.0  1536  576 tty5     S    02:29   0:00 /sbin/getty 
38400 tty5
root       309  0.0  0.0  1536  576 tty6     S    02:29   0:00 /sbin/getty 
38400 tty6
www-data   310  0.0  0.3 73976 2928 ?        S    02:29   0:00 
/usr/sbin/apache
www-data   311  0.0  0.3 73976 2928 ?        S    02:29   0:00 
/usr/sbin/apache
www-data   312  0.0  0.3 73976 2928 ?        S    02:29   0:00 
/usr/sbin/apache
www-data   313  0.0  0.3 73976 2928 ?        S    02:29   0:00 
/usr/sbin/apache
www-data   314  0.0  0.3 73976 2928 ?        S    02:29   0:00 
/usr/sbin/apache
root       329  0.0  0.1  2956 1480 tty1     S    03:12   0:00 bash
root       392  0.0  0.1  2772 1108 ?        S    03:16   0:00 
/usr/sbin/pppd call dsl-provider
root       393  0.0  0.0  1548  560 ?        S    03:16   0:00 
/usr/sbin/pppoe -I eth1 -T 80 -m 1452
root       483  4.2  0.2  7504 2012 ?        S    03:28   0:00 
/usr/sbin/sshd
dany       485  1.5  0.2  7516 2116 ?        S    03:28   0:00 
/usr/sbin/sshd
dany       486  5.5  0.1  2932 1444 pts/1    S    03:28   0:00 -bash
dany       489  0.0  0.2  4568 2124 pts/1    R    03:28   0:00 ps aux

Note that if I start dhclient on eth1, I will get the same error in plog 
(and no Internet), but the following configuration

will be sent to eth1:

eth1      Link encap:Ethernet  HWaddr 00:20:18:55:97:37
          inet addr:192.168.2.10  Bcast:192.168.2.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:909 errors:0 dropped:0 overruns:0 frame:0
          TX packets:896 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:66806 (65.2 KiB)  TX bytes:58418 (57.0 KiB)
          Interrupt:97 Base address:0xfd00


Thank you,

Dany


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Xref: news.gmane.org gmane.linux.ports.parisc:22271

On Sun, 09 Jan 2005 23:00:33 +0000, Dany Joly <dany_joly@hotmail.com> wrote:
 
> I have a HP B 180L running with Woody. Connecting the machine to an
> ethernet connection works very well. My problem is with PPOE.
> I recently switched ISP and I now use ADSL. Since then, I am unable 
> to access the Internet from this machine. I write to this forum rather than to a 
> general linux forum because when searching Google with "/dev/ppp: 
> Resource temporarily unavailable", I only get links related to PARISC.

Me too :-/

Sorry, I probably can't be offer much help here. PPPoE is working fine here
(C3000 running Debian/testing, kernel 2.6.10-rc3-pa2). You haven't specified
what kernel you are using, but since you are running woody, I'm pretty sure it 
must be a 2.4.x kernel.
However I also don't have any troubles with PPPoE and 2.4.25-pa1, so it
might either it is a problem with the (PPPoE) packages in woody, 
or have a too old kernel, or a h/w issue or something else.
Although there are some arch differences between your B180L and my
C3000, I somehow doubt that this has anything to do with this.

NB. I'm using a "Intel EtherExpress 100 Pro" as my 2nd network card.

It would be nice if you could provide more information about your system,
eg. the kernel version, the compiler you used to compile your kernel
(in case you compiled it yourself), the kind of network cards, and perhaps also
your kernel config.

IMHO I'd say you should try upgrading to Debian/testing if you cannot solve 
your problem otherwise. You might also want to try a 2.6 kernel in this case,
since nobody (of the parisc hackers) really cares about 2.4 anymore.

Greetings,
   Max
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> in the shift computing:
>         /* Calculate how to shift a word read at the memory operation
>            aligned srcp to make it aligned for copy.  */
>         sh_1 = 8 * (src % sizeof(unsigned int));
>         sh_2 = 8 * sizeof(unsigned int) - sh_1;
> 
> what means '8' (== 2 * word size; i.e. 2 * 32 bit because MERGE use shrpw 
> and so 2 (a pair of word)? )

no. 8 is # bits/byte. sh_1 is the number of bits to shift a 32-bit
integer.

what we are trying to achieve is that given two adjacent 32-bit numbers,
we want to extract a 32-bit number "in the middle" of the two (aligned)
32-bit values.

if you look carefully, actually the implementation of MERGE does not use
both sh_1 and sh_2. In the original implementation, MERGE was
implemented using two SHIFT operations plus an OR operation. This was
optimized to use shrpw because this PA insn can do all three operations
in a single step, so it saves a lot of cycles.

> next in
>          switch (len % 4)
>         {
> 
> is '4' because as mentioned in copy_dstalign() description this 'Handles 
> _4_ words per loop'

yes.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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On Sun, 2005-01-09 at 23:00 +0000, Dany Joly wrote:
> Nov  9 03:16:34 mammoth pppd[392]: Using interface ppp0
> Nov  9 03:16:34 mammoth pppd[392]: Connect: ppp0 <--> /dev/pts/0
> Nov  9 03:16:34 mammoth pppd[392]: read: Resource temporarily unavailable
> Nov  9 03:16:34 mammoth pppd[392]: read /dev/ppp: Resource temporarily 
> unavailable

I think this should be fixed (at least in the latest sarge version).
pppd used to do this because EAGAIN and EWOULDBLOCK have different error
numbers on pa (and pppd was originally only checking for one).

James


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Subject: [parisc-linux] Re: pa_memcpy: 2 small question
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btw I just recover the libc _wordcopy_fwd_dest_aligned()

> 
> > I need obvioulsy to understand those details beacuse to work with str=

I
> would
> > need to check somehow if there are a byte =3D=3D 0 in the on going wo=
rd (I
> already
> > find a formula to do this into other arch) to jump to byte_copy (so n=
eed
> > more work ;-)
> 
> maybe you can use something like (not tested):
> 
> loop:
> ldw 0(source),tmp
> uaddcm,nbz tmp,%r0,%r0
mmm I always confused by %r0: is a magic one containing zero (when read i=
irc)
what uaddcm is suposed to do:  tmp + ~%r0 (i.e. tmp+0xffffffff)? well hav=
e
to study ;-)
well any way if no trap occurs the results is put in %r0: I don't yet wel=
l
understand this usage of %r0 as target reg (excepted for prefetching)?

> b,n byte_copy
> b loop
> stw tmp, 0(dst)
> 
> byte_copy:
> ....
> 
> uaddcm should be able to let you determine if there are any 0's in the
> current word in a single insn.
> 
Thanks ...
I still trying to understand the previous formula I found somewhere :
	; NOTE: If a null char. exists, return 0.
	; if ((x - 0x01010101) & ~x & 0x80808080)
	;     return 0;
(here it comes from m32r/lib/useropcy.c)

Joel

-------------------------------------------------------------------------=
--
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On Mon, Jan 10, 2005 at 06:12:24PM +0100, Joel Soete wrote:
> well any way if no trap occurs the results is put in %r0: I don't yet well
> understand this usage of %r0 as target reg (excepted for prefetching)?

writes to %r0 are simply discarded.
It's a handy target when we don't care about the result since
it will not cause any interlocks with previous or succesive instructions.

grant
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Hi all,

I just noticed this change of top behaviour (and related gkrellm ...):
top - 11:53:24 up 50 min,  2 users,  load average: 4.09, 3.67, 2.78
Tasks:  67 total,   5 running,  62 sleeping,   0 stopped,   0 zombie
Cpu0  : 88.5% us,  0.0% sy,  0.0% ni,  0.0% id,  0.0% wa, 11.5% hi,  0.0%=

si
Cpu1  : 94.8% us,  0.0% sy,  0.0% ni,  0.0% id,  0.0% wa,  5.2% hi,  0.0%=

si
Mem:   4106296k total,   159832k used,  3946464k free,    16836k buffers
Swap:   250872k total,        0k used,   250872k free,    78568k cached

This example came from the smp 64bit runing on n4k but the same on 32bit
on b2k and b180:
sy, ni, id, wa, si vlaues are constanly =3D=3D 0

Do I have to rebuild those tools localy to take into acount of the recent=

kernel changes?

Tia,
    Joel

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> > in the shift computing:
> >         /* Calculate how to shift a word read at the memory operation=

> >            aligned srcp to make it aligned for copy.  */
> >         sh_1 =3D 8 * (src % sizeof(unsigned int));
> >         sh_2 =3D 8 * sizeof(unsigned int) - sh_1;
> > 
> > what means '8' (=3D=3D 2 * word size; i.e. 2 * 32 bit because MERGE u=
se shrpw
> 
> > and so 2 (a pair of word)? )
> 
> no. 8 is # bits/byte. sh_1 is the number of bits to shift a 32-bit
> integer.
> 
Ah Ok ;-)

> what we are trying to achieve is that given two adjacent 32-bit numbers=
,
> we want to extract a 32-bit number "in the middle" of the two (aligned)=

> 32-bit values.
> 
> if you look carefully, actually the implementation of MERGE does not us=
e
> both sh_1 and sh_2.
Yes ...

> In the original implementation, MERGE was
> implemented using two SHIFT operations plus an OR operation. This was
> optimized to use shrpw because this PA insn can do all three operations=

> in a single step, so it saves a lot of cycles.
> 
Cool :-)

> > next in
> >          switch (len % 4)
> >         {
> > 
> > is '4' because as mentioned in copy_dstalign() description this 'Hand=
les
> 
> > _4_ words per loop'
> 
> yes.
> 
I need obvioulsy to understand those details beacuse to work with str I w=
ould
need to check somehow if there are a byte =3D=3D 0 in the on going word (=
I already
find a formula to do this into other arch) to jump to byte_copy (so need
more work ;-)

Thanks a lot,
    Joel

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> I need obvioulsy to understand those details beacuse to work with str I would
> need to check somehow if there are a byte == 0 in the on going word (I already
> find a formula to do this into other arch) to jump to byte_copy (so need
> more work ;-)

maybe you can use something like (not tested):

loop:
ldw 0(source),tmp
uaddcm,nbz tmp,%r0,%r0
b,n byte_copy
b loop
stw tmp, 0(dst)

byte_copy:
....

uaddcm should be able to let you determine if there are any 0's in the
current word in a single insn.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

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Subject: Re: [parisc-linux] Re: pa_memcpy: 2 small question
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On Mon, Jan 10, 2005 at 06:12:24PM +0100, Joel Soete wrote:
> I still trying to understand the previous formula I found somewhere :
> 	; NOTE: If a null char. exists, return 0.
> 	; if ((x - 0x01010101) & ~x & 0x80808080)
> 	;     return 0;
> (here it comes from m32r/lib/useropcy.c)

It's subtracting one from each byte and checking for overflow.  If the
most significant bit is set in x - 1, but not in x, then x must be 0.
The & with ~x is used to mask out the most significant bit in each
byte, if it was already set in x.

If a byte is equal to 0, bytes to the "left" of it will be affected by
the overflow, but that doesn't matter.  Quite a neat trick, really.
-- 
Stuart Brady
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On Sul, 2005-01-09 at 20:47, Mike Frysinger wrote:
> ive actually hooked a voodoo2 into my C360 and got Xorg working at 
> 1024x768 ... i also tried the obsidian voodoo2 (it's basically 2 voodoo2's on 
> one card), but that kernel paniced (probably because of assumptions in the fb 
> code that there's only 1 voodoo2 per card ... ?)

It shouldn't panic. It may have bugs with multiple cards. Neither Xorg
nor the fb driver support the alternate scanline modes however.

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On Sun January 9 2005 17:00, Dany Joly wrote:
>
Which ethernet port is the modem connected to?
Is the modem setup as a bridge or is it also doing PPPoE?

Note:

> Nov  9 03:16:38 mammoth pppd[392]: local  IP address 67.70.77.230
> Nov  9 03:16:38 mammoth pppd[392]: remote IP address 64.230.254.187
> Nov  9 03:16:38 mammoth pppd[392]: primary   DNS address 206.47.244.89
> Nov  9 03:16:38 mammoth pppd[392]: secondary DNS address 206.47.244.133
>
- - - -
> mammoth:/home/dany# ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:60:B0:D0:45:CD
>           inet addr:192.168.0.1  Bcast:192.168.0.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
- - - -
> 
> eth1      Link encap:Ethernet  HWaddr 00:20:18:55:97:37
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
- - - -
> 
> ppp0      Link encap:Point-to-Point Protocol
>           inet addr:67.70.77.230  P-t-P:64.230.254.187  Mask:255.255.255.255
>           UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
- - - -
>
> mammoth:/tmp# route -n -F
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use 
> Iface
> 64.230.254.187  0.0.0.0         255.255.255.255 UH    0      0        0 ppp0
> 192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
> 0.0.0.0         64.230.254.187  0.0.0.0         UG    0      0        0 ppp0
> 
- - - - 
> /usr/sbin/pppd call dsl-provider
> root       393  0.0  0.0  1548  560 ?        S    03:16   0:00 
> /usr/sbin/pppoe -I eth1 -T 80 -m 1452
- - - -

eth1 ?  
Some modems expect the interface to have an address assigned.

Modem must be on eth1 - since PPPoE is up and running.
ppp is up and running - since it got the addresses and DNS.
Default route is to ppp0 - which is as expected.

Can you ping the nameservers?

In addition to trying a newer (fixed) ppp - check for the
modem still configured to do PPPoE.

The above outputs presume that the modem is configured
as a bridge.  
(a)dsl modems usually ship with PPPoE enabled.
If you are using a modem supplied by Bell Canada, it probably
also shipped with PPPoE enabled.

(a)dsl supports multiple sessions - the far end may be only listening
to the PPPoE session setup by the modem.

Mike
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Hello Randolph,

> 
> > I need obvioulsy to understand those details 
Well I think that I have understand (for the most) cpy_dstalign() what a
nice work and so interesting ins't it :-)

btw I just have an aditional question (not to work on now but later I ris=
k
to forget):
why don't you save the usage of OPSIZ (defined sizeof(unsigned long int))=

and use shrpd, ldd, std when ifdef __LP64__ ? (certainly another stuff I
missed sorry )

>beacuse to work with str I
> would
> > need to check somehow if there are a byte =3D=3D 0 in the on going wo=
rd (I
> already
> > find a formula to do this into other arch) to jump to byte_copy (so n=
eed
> > more work ;-)
> 
I can try to continue now ;-)

Thanks again to all for help,
    Joel

-------------------------------------------------------------------------=
--
Tiscali solde! 1 mois et activation Gratuits, modem =E0 9,99=80
http://reg.tiscali.be/adsl/default.asp?lg=3DFR



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> why don't you save the usage of OPSIZ (defined sizeof(unsigned long int))
> and use shrpd, ldd, std when ifdef __LP64__ ? (certainly another stuff I
> missed sorry )

that can be done as well, but cpy_dstaligned is supposed to be a
slow-path for the copy routine, and doing __LP64__ stuff means i can't
easily test it in userspace, so i didn't bother. you are certainly
welcome to try.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: [parisc-linux] Vis-EG card problems on c3k with 2.6.10-pa10?
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pa,

Running 2.6.10-pa10, 

STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f6000000 (64 kB), fb at fa000000 (32 MB)
    id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
    graphics card name: PCI_GRAFFITIDX1280
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIDX1280, 
id: 2d08c0a7, mmio : 0xfa100000

I can get something on the screen, but Tux is corrupted beyond
recognition and gdm is squished to the right.

Anyone running a new kernel and a PCI Vis-EG card and has a success
check?

processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8500 (PCX-W)
cpu MHz         : 400.000000
model           : 9000/785/C3000
model name      : AllegroHigh W
hversion        : 0x00005bb0
sversion        : 0x00000481
I-cache         : 512 KB
D-cache         : 1024 KB (WB, 0-way associative)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
bogomips        : 794.62
software id     : 2011698862

Cheers,
Carlos.
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Subject: Re: [parisc-linux] Vis-EG card problems on c3k with 2.6.10-pa10?
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On Wed, Jan 12, 2005 at 12:11:46AM -0500, Carlos O'Donell wrote:
> I can get something on the screen, but Tux is corrupted beyond
> recognition and gdm is squished to the right.

Let me rephrase that, X starts as a grey rectangle taking up only 1/5 of
the screen on the right hand side. When gdm starts that grey becomes
green.

The fbdev libggi demos don't display anything either, and that rules out
X in my opinion and points to a driver issue.

I'm going to roll back to 2.6.9 and see...

c.

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On Fri December 31 2004 16:54, Grant Grundler wrote:
> On Fri, Dec 31, 2004 at 03:35:28PM -0600, Michael S. Zick wrote:
> > I tried the 'patch that works' route with a similar suggestion for sched.c
> > Based on that experience...
> 
> ah good. You learned something. :^)
> 
> > What I proposed was:
> > The memory page free pool be defined as a 'virtual device' with
> > a two part driver.
> ...
> > In this virtual free pool device, the kernel is the 'client' and the
> > daemon is the 'host' (which only happens to be part of the kernel).
> > Only the 'client' code is in the user's execution path.
> 
> This sounds neat and "clean". But things could get very ugly
> when one needs to "steal" zero'd pages for other uses.
> 
> > Should be interesting to consider.
> 
> Yes, Agreed.
> 
Design seems to be drifting in that general direction.

See: change log on 2.6.11-rc1

More details at:
<http://seclists.org/lists/linux-kernel/2005/Jan/0888.html>

Mike (with Joel's help).
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Subject: Re: [parisc-linux] Vis-EG card problems on c3k with 2.6.10-pa10?
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> I'm going to roll back to 2.6.9 and see...

I tried 2.6.10 and 2.6.9 a couple of weeks ago
and rolled back to 2.6.8.1-pa11.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: =?ISO-8859-15?Q?Re=3A=20copy=5Fuser=5Fpage=5Fasm=20suggested=2064bit=20improvment=20=5BWas=3A=09=5Bparisc=2Dlinux=5D=20clear=20user=20page=20test=5D?=
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[...]
> > 
> Design seems to be drifting in that general direction.
> 
> See: change log on 2.6.11-rc1
> 
> More details at:
> <http://seclists.org/lists/linux-kernel/2005/Jan/0888.html>
> 
The last v4 release thread start here:
<http://seclists.org/lists/linux-kernel/2005/Jan/2931.html>
and also 
<http://www.gelato.unsw.edu.au/linux-ia64/0501/12468.html>

I tried to applying those patch but I do have miss against which kernel t=
his
patch was build: a big hunk of patch [2/4] failled :-(
Having a quick look is supposed to rename severall function in mm/page_al=
loc.c
as page_order() into page_zorder() but I didn't find it and not more in t=
he
vanilla 2.6.10?

Joel

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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] 2.6.11-rc1 pb with prebuild binaries
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Hello all,

I just encounter the same pb to build 2.6.11-rc1-pa2 64bits on my n4k as
on prebuild binaries because of:
init/built-in.o(.init.text+0x1958): In function `change_floppy':
: undefined reference to `__builtin_va_start'
arch/parisc/kernel/built-in.o(.text.real32_call+0x38): In function `real3=
2_call':
: undefined reference to `__builtin_va_start'
arch/parisc/kernel/built-in.o(.text.real64_call+0x3c): In function `real6=
4_call':
: undefined reference to `__builtin_va_start'
arch/parisc/kernel/built-in.o(.text.pdc_printf+0x34): In function `pdc_pr=
intf':
: undefined reference to `__builtin_va_start'
kernel/built-in.o(.text.panic+0x34): In function `panic':
: undefined reference to `__builtin_va_start'
kernel/built-in.o(.text.printk+0x24): more undefined references to `__bui=
ltin_va_start'
follow
make: *** [.tmp_vmlinux1] Error 1

 but not on my b2k :-)

The difference on n4k was still installed gcc-hppa64 3.0 (because during
my last atempt 2.6.10 failled to boot with gcc 3.3) otc on b2k gcc-3.3-hp=
pa64
and binutils-hppa64.

I so build first k-2.6.11-rc3-pa1 32bit for my b2k: build and boot fine :=
-)
the same k 64 up also for b2k: build and boot fine :-)
then using the opportunity to use a build dir, on this b2k I build a kern=
el
64bit up for the n4k: build and boot fine :-)
and finaly the same thing but smp: build and boot fine :-)

So the above mentioned pb seems to be fixed by a gcc binutils hppa64 upga=
rde
:-)

Hth,
    Joel

PS: kernel build loop on going to run on n4k smp (let see the results)


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] fpu emulation: another stupid question
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Hi all,

afaik all parisc cpu have a fpu?

So do we need the emaulation code in our kernel?

Thanks,
    Joel

PS: not find answer in ml

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Subject: Re: [parisc-linux] fpu emulation: another stupid question
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On Fri, Jan 14, 2005 at 12:40:01PM +0100, Joel Soete wrote:
> afaik all parisc cpu have a fpu?

Not all.  There were two machines, the 712/80i and 712/60i that shipped
without an FPU.

> So do we need the emaulation code in our kernel?

The emulation code also handles conditions that are not implemented by the
hardware.  I forget what they are exactly; some of the 128-bit wide FP
ops and some operations involving denormalised or infinite numbers.

-- 
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> > So do we need the emaulation code in our kernel?
> 
> The emulation code also handles conditions that are not implemented by the
> hardware.  I forget what they are exactly; some of the 128-bit wide FP
> ops and some operations involving denormalised or infinite numbers.

Doesn't it also happen to handle cases where the operands are not
aligned properly?

c.

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Subject: Re: [parisc-linux] fpu emulation: another stupid question
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On Fri, Jan 14, 2005 at 11:02:33AM -0500, Carlos O'Donell wrote:
> > > So do we need the emaulation code in our kernel?
> > 
> > The emulation code also handles conditions that are not implemented by the
> > hardware.  I forget what they are exactly; some of the 128-bit wide FP
> > ops and some operations involving denormalised or infinite numbers.
> 
> Doesn't it also happen to handle cases where the operands are not
> aligned properly?

I'd've thought that'd be the unaligned trap handler rather than the FP
emulation code, but you may be right -- I don't care to look too hard ;-)

-- 
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Subject: Re: [parisc-linux] fpu emulation: another stupid question
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On Fri, Jan 14, 2005 at 12:40:01PM +0100, Joel Soete wrote:
> Hi all,
> 
> afaik all parisc cpu have a fpu?

No - but I think parisc-linux requires it to be present.

> So do we need the emaulation code in our kernel?

Yes. Besides previous comments, ISTR not all FPU implementations
implement all the same instructions.

grant
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> > Doesn't it also happen to handle cases where the operands are not
> > aligned properly?
> 
> I'd've thought that'd be the unaligned trap handler rather than the FP
> emulation code, but you may be right -- I don't care to look too hard ;-)

willy is right, the unaligned trap handler handles this case.

the fp emulation code also handles some fp format conversions. if you
look in the archives you'll find a test case that is very very slow on
pa-linux compared to hpux. it's something that should be looked into at
some point.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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> > I'd've thought that'd be the unaligned trap handler rather than the FP
> > emulation code, but you may be right -- I don't care to look too hard ;-)
> 
> willy is right, the unaligned trap handler handles this case.
> 
> the fp emulation code also handles some fp format conversions. if you
> look in the archives you'll find a test case that is very very slow on
> pa-linux compared to hpux. it's something that should be looked into at
> some point.

There are differences between the floating point support in PA 1.x and
2.0 (e.g., 1.x doesn't have fneg and some of the conversion functions
that 2.0 implements in hardware).  If the kernel supports long doubles,
let me know.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Hacking the PCI Vis-Eg to work on my c3k (corrupt
	fb?)
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pa,

The video corruption I'm seeing looks like this:

http://www.baldric.uwo.ca/~carlos/IMGP1025.JPG
http://www.baldric.uwo.ca/~carlos/IMGP1026.JPG
http://www.baldric.uwo.ca/~carlos/IMGP1027.JPG

Any thoughts would be helpfull :)

Helge?

Cheers,
Carlos.
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Subject: Re: [parisc-linux] Hacking the PCI Vis-Eg to work on my c3k (corrupt
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On Sun January 16 2005 17:01, Carlos O'Donell wrote:
> 
> pa,
> 
> The video corruption I'm seeing looks like this:
> 
> http://www.baldric.uwo.ca/~carlos/IMGP1025.JPG
> http://www.baldric.uwo.ca/~carlos/IMGP1026.JPG
> http://www.baldric.uwo.ca/~carlos/IMGP1027.JPG
> 
> Any thoughts would be helpfull :)
> 
All of the penguin is in one (sort of) spot, not scattered.
Also has a displacement an approximate % of each dimension.

Some boards store r-g-b bitwise adjacent, some in planes.

Which ever sort a Vis-Eg is, the data is being written
in the other.

Mike
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Subject: [parisc-linux] Working pci vis-eg in c3k,
	problem solution elucidated...
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pa,

The following fixed my problems:

a. Boot box.
b. Stop at firmware.
c. Issue 'co' to enter configuration.
d. Issue 'mo <video hardware path> 12' to dispalbe VESA and
   doublebuffer.

Then boot the box. The sticonsole still seems squished but the colours
are right and gdm seems to load. I don't have a keyboard or mouse yet so 
I can't test it fully. Though it looks pretty.

I'll do some more research.

c.

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From: Steve Bromwich <hppa@fop.ns.ca>
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Subject: [parisc-linux] 2.6 upgrade problems
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--17435138-715870050-1105990740=:3385
Content-Type: TEXT/PLAIN; charset=US-ASCII

Hi,

I just upgraded my 715/100XC to 2.6.10-pa10 from 2.4.27, and I've hit a
few snags. First is I've lost serial console ("if this is the last message
you see..."). I did make oldconfig from the 2.4.27 config, but I think
I've fluffed it and missed the driver. Can someone see what I've missed in
the attached config?

Next, vmstat appears to fail with a segfault:

brain:/var/adm# vmstat 1
Unknown HZ value! (7) Assume 100.
   procs                      memory    swap          io     system         cpu
 r  b  w   swpd   free   buff  cache  si  so    bi    bo   in    cs  us  sy  id
Segmentation fault
brain:/var/adm#

A stack trace is dumped out to dmesg:
do_page_fault() pid=3580 command='vmstat' type=15 address=0x00000000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 40c4dbec 40b820ef 00000000
r04-07  faf00b90 faf00b90 00000000 40c52af0
r08-11  faf00b18 faf00940 faf00970 faf009b0
r12-15  faf00960 faf009a0 faf00990 faf00980
r16-19  faf009c0 00000001 00000000 40c52af0
r20-23  80808000 01010101 00000000 80808080
r24-27  00000000 00000000 00000000 0002205c
r28-31  00000000 00000070 faf00d80 40b4118b
sr0-3   00000000 00000000 00000000 000002c8
sr4-7   000002c8 000002c8 000002c8 000002c8

IASQ: 000002c8 000002c8 IAOQ: 40b8a86f 40b8a873
 IIR: 0ec810b4    ISR: 000002c8  IOR: 00000000
 CPU:        0   CR30: 14e6c000 CR31: 10370000
 ORIG_R28: 0000016b
 IAOQ[0]: 0x40b8a86f
 IAOQ[1]: 0x40b8a873
 RP(r2): 0x40b820ef

Can anyone give me any pointers on how to decode this? I can't see
anything that matches up to my System.map, has it changed for 2.6?

Finally (and it may not have been a great idea to do this at the same time
as doing the kernel upgrade) I put in a DAT drive I acquired. This is
failing when I try to write to it with the following error in dmesg:

st0: Error with sense data: Info fld=0x14, Current st0: sense = f0  3
ASC= c ASCQ= 0
Raw sense data:0xf0 0x00 0x03 0x00 0x00 0x00 0x14 0x2c 0x00 0x00 0x00 0x00
0x0c 0x00 0x00 0x00 0x00 0x85 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0
x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00

The tape drive is a IBM-C568303030!D which, while manufactured by HP, was
(I believe) intended for use in an AIX system and may be the reason it's
not working, but if anyone can give me any hints it'd be much appreciated.

Cheers, Steve
--17435138-715870050-1105990740=:3385
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From: Steve Bromwich <hppa@fop.ns.ca>
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Subject: Re: [parisc-linux] 2.6 upgrade problems
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On Mon, 17 Jan 2005, Matthew Wilcox wrote:

> On Mon, Jan 17, 2005 at 03:39:00PM -0400, Steve Bromwich wrote:
> > I just upgraded my 715/100XC to 2.6.10-pa10 from 2.4.27, and I've hit a
> > few snags. First is I've lost serial console ("if this is the last message
> > you see..."). I did make oldconfig from the 2.4.27 config, but I think
> > I've fluffed it and missed the driver. Can someone see what I've missed in
> > the attached config?
>
> Nothing, it seems to be fine.  You have CONFIG_GSC, CONFIG_GSC_LASI,
> CONFIG_GSC_WAX and CONFIG_SERIAL_8250, which should be enough.  The
> 715/100 is pretty similar to the 725/100 I have, which works.
>
> Could you send me your dmesg?  I'd like to figure out why this is failing.

Sure, I've attached it. Looking closer I also noticed a bunch of SCSI
errors I don't recall seeing before ("New error handler wants to abort
command") - do these give any hints as to what my SCSI tape problem is?
I'm moderately (though not 100%) sure I have termination configured
correctly.

Cheers, Steve
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] 2.6 upgrade problems
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On Mon, Jan 17, 2005 at 03:39:00PM -0400, Steve Bromwich wrote:
> I just upgraded my 715/100XC to 2.6.10-pa10 from 2.4.27, and I've hit a
> few snags. First is I've lost serial console ("if this is the last message
> you see..."). I did make oldconfig from the 2.4.27 config, but I think
> I've fluffed it and missed the driver. Can someone see what I've missed in
> the attached config?

Nothing, it seems to be fine.  You have CONFIG_GSC, CONFIG_GSC_LASI,
CONFIG_GSC_WAX and CONFIG_SERIAL_8250, which should be enough.  The
715/100 is pretty similar to the 725/100 I have, which works.

Could you send me your dmesg?  I'd like to figure out why this is failing.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] 2.6 upgrade problems
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> 
> Attachment: dmesg
> 
[...]
scsi0: 53c710 rev 2 
scsi0 : LASI SCSI 53c700
[...]
I also encounter some pb with this driver on my c110 :-(
But I don't yet reach to know if my pb is hw or sw?
HP ODE tool didn't report any errors (even thought it's only a reading te=
st?)
I try to figure out if its firmware is uptodate but no luck :-(

and finaly the pb (a dd strees test) occures as well in 2.6 and 2.4 too 

Sorry also because I don't yet find more time (on this system it's not th=
e
main scsi-ctrl ;) to investigate more.
(I just noticed that some changes was recently bring to related ncr scrip=
ts
in openbsd driver but unfortunately I have not yet enough clue to help mo=
re)

Joel

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Subject: Re: [parisc-linux] 2.6.11-rc1-pa3 rp3440 BUG at kernel/workqueue.c:132
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On Wed, Jan 19, 2005 at 09:21:22AM +0100, Joel Soete wrote:
> Just by curiosity: is that 4 cpus or 2 dual core?

It's two sockets, each with a dual-die processor.  I deduced this from
the rp4440 claiming 8 processors and knowing the zx1 chipset only supports
4 sockets.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] 2.6.11-rc1-pa3 rp3440 BUG at kernel/workqueue.c:132
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> Subject: Re: [parisc-linux] 2.6.11-rc1-pa3 rp3440 BUG at kernel/workque=
ue.c:132
> 
> 
> On Wed, Jan 19, 2005 at 09:21:22AM +0100, Joel Soete wrote:
> > Just by curiosity: is that 4 cpus or 2 dual core?
> 
> It's two sockets, each with a dual-die processor.  I deduced this from
> the rp4440 claiming 8 processors and knowing the zx1 chipset only suppo=
rts
> 4 sockets.
> 
thanks

in fact  I was confused by the boot server message:
Booting... 
Boot IO Dependent Code (IODC) revision 3


HARD Booted.
palo ipl 1.5 root at c3k Fri May 14 16:17:38 MDT 2004
                            ^^^^^

sorry,
    Joel


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Subject: RE: [parisc-linux] 2.6.11-rc1-pa3 rp3440 BUG at kernel/workqueue.c:132
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[...]
> Linux version 2.6.9-rc1-pa0 (jejb@gsyprf11.external.hp.com) (gcc versio=
n
> 3.0.4) #4 SMP Mon Aug 30 07:58:13 PDT 2004
What's up with 2.6.11-rc1-paX with gcc-3.3?

[...]> Enabling PDC_PAT chassis codes support.
> Releasing cpu 1 now, hpa=3Dfffffffffe781000
> FP[1] enabled: Rev 1 Model 20
> Releasing cpu 2 now, hpa=3Dfffffffffe798000
> FP[2] enabled: Rev 1 Model 20
> Releasing cpu 3 now, hpa=3Dfffffffffe799000
> FP[3] enabled: Rev 1 Model 20
> CPU(s): 4 x PA8800 (Mako) at 999.999700 MHz
Just by curiosity: is that 4 cpus or 2 dual core?

Is it booting in UP (either kernel or cpu deconfigure if possible ?)

Thnaks,
    Joel

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Subject: Re: [parisc-linux] 2.6.11-rc1-pa3 rp3440 BUG at kernel/workqueue.c:132
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> System paniced at boot.
>
> The odd thing is the "more memory ranges than we support" message
> is out of place since DISCONTIGMEM is enabled.
>
> grant
>
>
> Main Menu: Enter command or menu > bo lan
> Interact with IPL (Y, N, or Cancel)?> n
>
> Booting...
> Boot IO Dependent Code (IODC) revision 3
>
>
> HARD Booted.
> palo ipl 1.5 root@c3k Fri May 14 16:17:38 MDT 2004
>
> Boot image contains:
>     0/vmlinux64 6585304 bytes @ 0xa000
>
> Command line for kernel: '0/vmlinux64 root=/dev/nfs
> nfsroot=192.168.1.61:/home/tftpboot/ion ip=dhcp console=ttyS1
> palo_kernel=0'
> Selected kernel:  from partition 0
> Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing
> 64-bit kernelELF64 executable
> Entry 00100000 first 00100000 n 3
> Segment 0 load 00100000 size 4806272 mediaptr 0x1000
> Segment 1 load 00598000 size 314792 mediaptr 0x497000
> Segment 2 load 005e8000 size 294584 mediaptr 0x4e4000
> Branching to kernel entry point 0x00100000.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org
>
> Linux version 2.6.9-rc1-pa0 (jejb@gsyprf11.external.hp.com) (gcc version
> 3.0.4) #4 SMP Mon Aug 30 07:58:13 PDT 2004

Grant,
2.6.9-rc1-pa0? Doesn't seem to agree with your subject line.
Looks like tftp got hold of an old kernel.

-Andy

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Subject: Re: [parisc-linux] 2.6.11-rc1-pa3 rp3440 BUG at kernel/workqueue.c:132
Date: Wed, 19 Jan 2005 00:35:57 -0800
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> The odd thing is the "more memory ranges than we support" message
> is out of place since DISCONTIGMEM is enabled.

are you sure you are booting the kernel you think you are booting?
because all the messages you pasted are consistent with a
non-DISCONTIGMEM kernel.

> model 9000/800/rp3440  
> This Machine has more memory ranges than we support!
> Some memory will not be used!
> parisc_cache_init: Only equivalent aliasing supported!
> Total Memory: 1024 Mb
> SMP: bootstrap CPU ID is 0
> Built 1 zonelists
^^^^^^^^^^^^^^^^^^^ <- this means not DISCONTIGMEM

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: [parisc-linux] 2.6.11-rc1-pa3 rp3440 BUG at kernel/workqueue.c:132
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Xref: news.gmane.org gmane.linux.ports.parisc:22309

System paniced at boot.

The odd thing is the "more memory ranges than we support" message
is out of place since DISCONTIGMEM is enabled.

grant


Main Menu: Enter command or menu > bo lan
Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Boot IO Dependent Code (IODC) revision 3


HARD Booted.
palo ipl 1.5 root@c3k Fri May 14 16:17:38 MDT 2004

Boot image contains:
    0/vmlinux64 6585304 bytes @ 0xa000

Command line for kernel: '0/vmlinux64 root=/dev/nfs nfsroot=192.168.1.61:/home/tftpboot/ion ip=dhcp console=ttyS1 palo_kernel=0'
Selected kernel:  from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 64-bit kernelELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4806272 mediaptr 0x1000
Segment 1 load 00598000 size 314792 mediaptr 0x497000
Segment 2 load 005e8000 size 294584 mediaptr 0x4e4000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.9-rc1-pa0 (jejb@gsyprf11.external.hp.com) (gcc version 3.0.4) #4 SMP Mon Aug 30 07:58:13 PDT 2004
FP[0] enabled: Rev 1 Model 20
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00008890 00000491 00000000 00000002 3e0505e7352af70e 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 20 rev 4 (0x00000284)
capabilities 0x35
model 9000/800/rp3440  
This Machine has more memory ranges than we support!
Some memory will not be used!
parisc_cache_init: Only equivalent aliasing supported!
Total Memory: 1024 Mb
SMP: bootstrap CPU ID is 0
Built 1 zonelists
Kernel command line: 0/vmlinux64 root=/dev/nfs nfsroot=192.168.1.61:/home/tftpboot/ion ip=dhcp console=ttyS1 palo_kernel=0
PID hash table entries: 16 (order 4: 256 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Memory: 1048576k available
Mount-cache hash table entries: 256 (order: 0, 4096 bytes)
Brought up 1 CPUs
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Storm Peak Fast at 0xfffffffffe780000 [128] { 0, 0x0, 0x889, 0x00004 }
2. Storm Peak Fast at 0xfffffffffe781000 [129] { 0, 0x0, 0x889, 0x00004 }
3. Storm Peak Fast at 0xfffffffffe798000 [152] { 0, 0x0, 0x889, 0x00004 }
4. Storm Peak Fast at 0xfffffffffe799000 [153] { 0, 0x0, 0x889, 0x00004 }
5. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
6. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
7. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
8. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
9. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
10. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
11. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
12. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
13. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
14. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
Enabling PDC_PAT chassis codes support.
Releasing cpu 1 now, hpa=fffffffffe781000
FP[1] enabled: Rev 1 Model 20
Releasing cpu 2 now, hpa=fffffffffe798000
FP[2] enabled: Rev 1 Model 20
Releasing cpu 3 now, hpa=fffffffffe799000
FP[3] enabled: Rev 1 Model 20
CPU(s): 4 x PA8800 (Mako) at 999.999700 MHz
SBA found Pluto 2.3 at 0xfffffffffed00000
lba version TR3.2 (0x32) found at 0xfffffffffed20000
lba version TR3.2 (0x32) found at 0xfffffffffed22000
lba version TR3.2 (0x32) found at 0xfffffffffed24000
lba version TR3.2 (0x32) found at 0xfffffffffed26000
lba version TR3.2 (0x32) found at 0xfffffffffed28000
kernel BUG at kernel/workqueue.c:132!
Kernel panic - not syncing: BUG!
 
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.6.... b2k panic with raid1 :-( (I/O MMU ... out of
	mapping ressources)
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Xref: news.gmane.org gmane.linux.ports.parisc:22310

Hello all,

Since this morning I mirrored my disks (1 9Gb on 1 36Gb) but as soon as I=

try to 'apt-get update' the system now panic:

Kernel panic - not syncing: /CAD/linux-2.6.11-rc1-pa3/drivers/parisc/sba_=
iommu.c:
I/O MMU @ fed20000 is out of mapping resources

(nothing more sorry)

This pb occured with 2.6.11-rc1-pa3 32bit (config near c3k default), 2.6.=
11-rc1-pa2
64bit, 2.6.10-pa10 32bit and even with 2.6.8-pa11 64bit 

the fs on which I worked is:
/dev/md7               2015696    604044   1391176  31% /Sources

ie:
# cat /proc/mdstat
...
md7 : active raid1 sdb10[1] sda10[0]
      2047872 blocks [2/2] [UU]
...

and the slicing of those disks are:
# partition table of /dev/sda
unit: sectors

/dev/sda1 : start=3D       32, size=3D   128992, Id=3Df0
/dev/sda2 : start=3D   129024, size=3D   256000, Id=3Dfd
/dev/sda3 : start=3D   385024, size=3D   512000, Id=3Dfd
/dev/sda4 : start=3D   897024, size=3D 16773120, Id=3D 5
/dev/sda5 : start=3D   897056, size=3D  3198944, Id=3Dfd
/dev/sda6 : start=3D  4096032, size=3D   511968, Id=3Dfd
/dev/sda7 : start=3D  4608032, size=3D   255968, Id=3Dfd
/dev/sda8 : start=3D  4864032, size=3D   255968, Id=3Dfd
/dev/sda9 : start=3D  5120032, size=3D  4095968, Id=3Dfd
/dev/sda10: start=3D  9216032, size=3D  4095968, Id=3Dfd
/dev/sda11: start=3D 13312032, size=3D  4095968, Id=3Dfd

# partition table of /dev/sdb
unit: sectors

/dev/sdb1 : start=3D       32, size=3D   128992, Id=3Df0
/dev/sdb2 : start=3D   129024, size=3D   256000, Id=3Dfd
/dev/sdb3 : start=3D   385024, size=3D   512000, Id=3Dfd
/dev/sdb4 : start=3D   897024, size=3D 49278976, Id=3D 5
/dev/sdb5 : start=3D   897056, size=3D  3198944, Id=3Dfd
/dev/sdb6 : start=3D  4096032, size=3D   511968, Id=3Dfd
/dev/sdb7 : start=3D  4608032, size=3D   255968, Id=3Dfd
/dev/sdb8 : start=3D  4864032, size=3D   255968, Id=3Dfd
/dev/sdb9 : start=3D  5120032, size=3D  4095968, Id=3Dfd
/dev/sdb10: start=3D  9216032, size=3D  4095968, Id=3Dfd
/dev/sdb11: start=3D 13312032, size=3D  4095968, Id=3Dfd
/dev/sdb12: start=3D 17408032, size=3D 32767968, Id=3D83

(no pb encountered to build and sync the mirroring).

I just find a work around: mark a slice failed (mdadm --fail /dev/sda10)
and I can now doing my 'apt-get update'

Thanks in advance for help,
    Joel

PS: I presume that same pb will occure when I will try to upgrade the ins=
tall
(a debian unstable) so am I waiting the end of a restore before continuin=
g

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Willy,

Cool: boot and seems to works fine on b180 and boot fine on b2k 64bit :-)=


Thanks a lot,
    Joel

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On Thu, Jan 20, 2005 at 07:46:04PM +0100, Joel Soete wrote:
> Willy,
> 
> Cool: boot and seems to works fine on b180 and boot fine on b2k 64bit :-)

Blimey, I wasn't expecting anyone to actually try booting it, it was
more of a resync point for doing more merges.

But it's cool that it works ;-)

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] 2.6.11-rc1-pa3 rp3440 BUG at kernel/workqueue.c:132
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On Wed, Jan 19, 2005 at 12:49:27AM -0700, Grant Grundler wrote:
> System paniced at boot.
> 
> The odd thing is the "more memory ranges than we support" message
> is out of place since DISCONTIGMEM is enabled.

That should have been my first clue it wasn't the kernel
that I was expecting.

Appended is the output for ion (rp3440) again on 2.6.11-rc1 kernel.
Apologies for the confusion the first time around...

This time, the kernel panics because NFS server isn't config'd right.
I'll fix that and see if it gets much further.

grant


Main Menu: Enter command or menu > bo lan
Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Boot IO Dependent Code (IODC) revision 3


HARD Booted.
palo ipl 1.5 root@c3k Fri May 14 16:17:38 MDT 2004

Boot image contains:
    0/vmlinux64 6298528 bytes @ 0xa000

Command line for kernel: 'root=/dev/nfs nfsroot=192.168.1.61:/home/tftpboot/ion ip=dhcp console=ttyS1 palo_kernel=0HOME=/'
Selected kernel: HOME=/ from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 64-bit kernelELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4592256 mediaptr 0x1000
Segment 1 load 00564000 size 333808 mediaptr 0x463000
Segment 2 load 005b8000 size 294888 mediaptr 0x4b5000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.11-rc1-pa3-nopre (grundler@gsyprf11.external.hp.com) (gcc version 3.4.4 20041218 (prerelease) (Debian 3.4.3-6)) #5 SMP Sun Jan 16 13:18:17 PST 2005
FP[0] enabled: Rev 1 Model 20
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00008890 00000491 00000000 00000002 3e0505e7352af70e 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 20 rev 4 (0x00000284)
capabilities 0x35
model 9000/800/rp3440  
parisc_cache_init: Only equivalent aliasing supported!
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 Mb
 1) Start 0x0000004040000000 End 0x00000040ffdfffff Size   3070 Mb
Total Memory: 4094 Mb
SMP: bootstrap CPU ID is 0
Built 2 zonelists
Kernel command line: root=/dev/nfs nfsroot=192.168.1.61:/home/tftpboot/ion ip=dhcp console=ttyS1 palo_kernel=0HOME=/
PID hash table entries: 4096 (order: 12, 131072 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Memory: 4192256k available
Mount-cache hash table entries: 256 (order: 0, 4096 bytes)
Brought up 1 CPUs
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Storm Peak Fast at 0xfffffffffe780000 [128] { 0, 0x0, 0x889, 0x00004 }
2. Storm Peak Fast at 0xfffffffffe781000 [129] { 0, 0x0, 0x889, 0x00004 }
3. Storm Peak Fast at 0xfffffffffe798000 [152] { 0, 0x0, 0x889, 0x00004 }
4. Storm Peak Fast at 0xfffffffffe799000 [153] { 0, 0x0, 0x889, 0x00004 }
5. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
8. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
9. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
10. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
11. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
12. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
13. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
14. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
Releasing cpu 1 now, hpa=fffffffffe781000
FP[1] enabled: Rev 1 Model 20
Releasing cpu 2 now, hpa=fffffffffe798000
FP[2] enabled: Rev 1 Model 20
Releasing cpu 3 now, hpa=fffffffffe799000
FP[3] enabled: Rev 1 Model 20
CPU(s): 4 x PA8800 (Mako) at 999.999200 MHz
Setting cache flush threshold to 2606f40 (4 CPUs online)
SBA found Pluto 2.3 at 0xfffffffffed00000
LBA version TR3.2 (0x32) found at 0xfffffffffed20000
LBA version TR3.2 (0x32) found at 0xfffffffffed22000
LBA version TR3.2 (0x32) found at 0xfffffffffed24000
LBA version TR3.2 (0x32) found at 0xfffffffffed26000
LBA version TR3.2 (0x32) found at 0xfffffffffed28000
LBA version TR3.2 (0x32) found at 0xfffffffffed2c000
LBA version TR3.2 (0x32) found at 0xfffffffffed2e000
FAILED: lba_fixup_bus() request for lmmio_space [fffffffff0000000/fffffffffecffffe]
SCSI subsystem initialized
unwind_init: start = 0x1043f160, end = 0x1045da10, entries = 7819
Performance monitoring counters enabled for Storm Peak Fast
Initializing Cryptographic API
PDC Stable Storage facility v0.04
Soft power switch support not available.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 17 ports, IRQ sharing enabled
ttyS0 at MMIO 0xfffffffff4051000 (irq = 25) is a 16550A
ttyS1 at MMIO 0xfffffffff4050000 (irq = 25) is a 16550A
ttyS2 at MMIO 0xfffffffff4050010 (irq = 25) is a 16550A
ttyS3 at MMIO 0xfffffffff4050038 (irq = 25) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 22
sym0: PA-RISC Firmware, ID 7, Fast-80, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18n
elevator: using anticipatory as default io scheduler
  Vendor: HP 73.4G  Model: ST373453LC        Rev: HPC3
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:0:0: tagged command queuing enabled, command queue depth 16.
 target0:0:0: Beginning Domain Validation
sym0:0: wide asynchronous.
sym0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
 target0:0:0: Ending Domain Validation
  Vendor: HP 73.4G  Model: ST373453LC        Rev: HPC3
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:1:0: tagged command queuing enabled, command queue depth 16.
 target0:0:1: Beginning Domain Validation
sym0:1: wide asynchronous.
sym0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
 target0:0:1: Ending Domain Validation
sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 23
sym1: PA-RISC Firmware, ID 7, Fast-80, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.1.18n
sym1:0:0: ABORT operation started.
sym1:0:0: ABORT operation timed-out.
sym1:0:0: DEVICE RESET operation started.
sym1:0:0: DEVICE RESET operation timed-out.
sym1:0:0: BUS RESET operation started.
sym1:0:0: BUS RESET operation timed-out.
sym1:0:0: HOST RESET operation started.
sym1: SCSI BUS has been reset.
sym1:0:0: HOST RESET operation timed-out.
scsi: Device offlined - not ready after error recovery: host 1 channel 0 id 0 lun 0
sym1:1:0: ABORT operation started.
sym1:1:0: ABORT operation timed-out.
sym1:1:0: DEVICE RESET operation started.
sym1:1:0: DEVICE RESET operation timed-out.
sym1:1:0: BUS RESET operation started.
sym1:1:0: BUS RESET operation timed-out.
sym1:1:0: HOST RESET operation started.
sym1: SCSI BUS has been reset.
sym1:1:0: HOST RESET operation timed-out.
scsi: Device offlined - not ready after error recovery: host 1 channel 0 id 1 lun 0
sym1:2:0: ABORT operation started.
sym1:2:0: ABORT operation timed-out.
sym1:2:0: DEVICE RESET operation started.
sym1:2:0: DEVICE RESET operation timed-out.
sym1:2:0: BUS RESET operation started.
sym1:2:0: BUS RESET operation timed-out.
sym1:2:0: HOST RESET operation started.
sym1: SCSI BUS has been reset.
sym1:2:0: HOST RESET operation timed-out.
scsi: Device offlined - not ready after error recovery: host 1 channel 0 id 2 lun 0
sym1:3:0: ABORT operation started.
sym1:3:0: ABORT operation timed-out.
sym1:3:0: DEVICE RESET operation started.
sym1:3:0: DEVICE RESET operation timed-out.
sym1:3:0: BUS RESET operation started.
sym1: SCSI BUS reset detected.
sym1: SCSI BUS has been reset.
sym1:3:0: BUS RESET operation complete.
sym1:3:0: HOST RESET operation started.
sym1: SCSI BUS has been reset.
sym1:3:0: HOST RESET operation complete.
scsi: Device offlined - not ready after error recovery: host 1 channel 0 id 3 lun 0
st: Version 20041025, fixed bufsize 32768, s/g segs 256
SCSI device sda: 143374738 512-byte hdwr sectors (73408 MB)
SCSI device sda: drive cache: write through
SCSI device sda: 143374738 512-byte hdwr sectors (73408 MB)
SCSI device sda: drive cache: write through
 sda: sda1 sda2 sda3
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sdb: 143374738 512-byte hdwr sectors (73408 MB)
SCSI device sdb: drive cache: write through
SCSI device sdb: 143374738 512-byte hdwr sectors (73408 MB)
SCSI device sdb: drive cache: write through
 sdb: sdb1 sdb2
Attached scsi disk sdb at scsi0, channel 0, id 1, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 1, lun 0,  type 0
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: md driver 0.90.1 MAX_MD_DEVS=256, MD_SB_DISKS=27
NET: Registered protocol family 2
IP: routing cache hash table of 8192 buckets, 192Kbytes
TCP established hash table entries: 131072 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 8, 1572864 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
NET: Registered protocol family 1
NET: Registered protocol family 17
IP-Config: No network devices available.
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
Looking up port of RPC 100003/2 on 192.168.1.61
RPC: sendmsg returned error 229
portmap: RPC call returned error 229
Root-NFS: Unable to get nfsd port number from server, using default
Looking up port of RPC 100005/1 on 192.168.1.61
RPC: sendmsg returned error 229
portmap: RPC call returned error 229
Root-NFS: Unable to get mountd port number from server, using default
RPC: sendmsg returned error 229
mount: RPC call returned error 229
Root-NFS: Server returned error -229 while mounting /home/tftpboot/ion
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "nfs" or unknown-block(2,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
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Subject: [parisc-linux] Re: 2.6.... b2k panic with raid1 :-( (I/O MMU ...
	out of mapping ressources)
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On Thu, Jan 20, 2005 at 11:51:00AM +0100, Joel Soete wrote:
> Hello all,
> 
> Since this morning I mirrored my disks (1 9Gb on 1 36Gb) but as soon as I
> try to 'apt-get update' the system now panic:
> 
> Kernel panic - not syncing: /CAD/linux-2.6.11-rc1-pa3/drivers/parisc/sba_iommu.c:
> I/O MMU @ fed20000 is out of mapping resources

Yes - this has been the expected behavior since ~1999.

The basic problem can be addressed by modifying the drivers that use DMA
services to also check dma_mapping_error() (or pci_dma_mapping_error()
if one prefers). I'll need to add some code to
include/asm-parisc/dma-mapping.h to provide support for failed mappings
before I can remove the panic. This won't happen soon unfortunately.

> I just find a work around: mark a slice failed (mdadm --fail /dev/sda10)
> and I can now doing my 'apt-get update'

Good idea - that just cut in half the number of mappings needed.

thanks for the report and feel free to remind in a few weeks about
this again.

grant
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Reminder 
Power at the Fort Collins Site will be shutdown Friday January 28th @ 5pm MST 
until midnight Sunday.  This will effect all machines currently hosted or up 
and running in Fort Collins.

If you have any questions let me know.

Ryan

-- 
Ryan Fuerst
ryan.fuerst@hp.com
970-898-0817
Linux & Open Source Lab
Kemtah
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Subject: [parisc-linux] Re: prezeroing patch test against 2.6.11-rc2-pa0
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On Sat January 22 2005 17:53, Joel Soete wrote:
> Just an update to mentioned that the last Christoph's patch against our 2.6.11-rc2-pa0 (with some small ack) boot fine on my c110:
> # ps -ef | grep scr
> root        10     1  0 00:38 ?        00:00:04 [kscrubd0]
>   :-)
>
Joel,
That sounds good.  I haven't been watching for newer patches.

I have been working on my patch de-mangler.

It has been slow going because I have never used Lua before.
I have had it on my to-do list of things to learn for several years.

I started out just to correct indentation whitespace...

Now it also reformats bad hunk headers 
and re-writes incorrect hunk headers.

Both with informative messages to the user.  None of that:
"Malformed patch" and exit.  
Which is what the patch program does.

I have a couple more small changes to make, but it is working
pretty well now.

Given a 643,000+ line patchfile (21 Mbyte) it takes about 
10 seconds to re-write it.
With a reasonable sized patchfile, you can't even notice
it's run time.

So it has been fun, even if we don't need it for Christoph's
old patchfiles.

Mike
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From: Christoph Lameter <clameter@sgi.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: prezeroing patch test against 2.6.11-rc2-pa0 [Was:
	copy_user_page_asm
	suggested 64bit improvment [Was: [parisc-linux] clear user page test]]
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Adjust the parameters in /proc/sys/vm/scrub_*. And scrubd is running very
fast so its likely difficult to catch. Check /proc/meminfo to see if you
have any zeroed memory.

On Sat, 22 Jan 2005, Joel Soete wrote:

> Just an update to mentioned that the last Christoph's patch against our 2=
=2E6.11-rc2-pa0 (with some small ack) boot fine on my c110:
> # ps -ef | grep scr
> root        10     1  0 00:38 ?        00:00:04 [kscrubd0]
>   :-)
>
> But evidently I missed something:
>    I well find
> # grep scru /boot/System.map-2.6.11-rc2-pa0-c110
> 10146b40 T scrubd_rmpage
> 1015c2a8 T scrub_start_handler
> 1015c4b8 t scrub_pgdat
> 1015c538 t kscrubd
> 10229bf8 t scrup
> 103a0d98 D sysctl_scrub_start
> 103a0d9c D sysctl_scrub_stop
> 103a0da0 D sysctl_scrub_load
> 103fab0c t kscrubd_init
> 10445870 t __initcall_kscrubd_init
>
>    but
> # readprofile | grep scr
>
> Thanks in advance,
> =09Joel
>
> Joel Soete wrote:
> > Just to update report:
> >
> >
> >>[...]
> >>
> >>>Design seems to be drifting in that general direction.
> >>>
> >>>See: change log on 2.6.11-rc1
> >>>
> >>>More details at:
> >>><http://seclists.org/lists/linux-kernel/2005/Jan/0888.html>
> >>>
> >>The last v4 release thread start here:
> >><http://seclists.org/lists/linux-kernel/2005/Jan/2931.html>
> >>and also
> >><http://www.gelato.unsw.edu.au/linux-ia64/0501/12468.html>
> >>
> >>I tried to applying those patch but I do have miss against which kernel
> >
> > this
> >
> >>patch was build: a big hunk of patch [2/4] failled :-(
> >>Having a quick look is supposed to rename severall function in mm/page_=
alloc.c
> >>as page_order() into page_zorder() but I didn't find it and not more in
> >
> > the
> >
> >>vanilla 2.6.10?
> >>
> >
> > The merge with 2.6.11-rc1 help a bit but previous mentioned pacthes wer=
e
> > not build against this kernel src, so I will awaiting patches against t=
his
> > one ;-)
> >
> > Joel
> >
> > -----------------------------------------------------------------------=
----
> > Tiscali solde! 1 mois et activation Gratuits, modem =C3=A0 9,99=EF=BF=
=BD
> > http://reg.tiscali.be/adsl/default.asp?lg=3DFR
> >
> >
> >
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
>
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] EVC to 2x VGA on ebay.
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parisc,

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=5161476411&ssPageName=STRK:MEWA:IT

Just saw this on ebay. It's a steal for the EVC connector end.
I *do not* know if they work with hppa systems but I'm willing to buy 4
of them just to hack the EVC connectors.

I'm hoping they work!

Cheers,
Carlos.

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Hello Carlos,

> parisc,
> 
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=3D1&item=3D5161476411&=
ssPageName=3DSTRK:MEWA:IT
> 
> Just saw this on ebay. It's a steal for the EVC connector end.

On my b180, I use a converter of this kind (hp supplied) but it was write=
n
PVC on it and enlarge picture (if match the actual product ) doesn't matc=
h
at all this PVC converter :-(

Hth,
    Joel


-------------------------------------------------------------------------=
--
Tiscali solde! 1 mois et activation Gratuits, modem =E0 9,99=80
http://reg.tiscali.be/adsl/default.asp?lg=3DFR



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Subject: Re: [parisc-linux] EVC to 2x VGA on ebay.
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On Monday 31 January 2005 10:56 am, Carlos O'Donell wrote:
> parisc,
>
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=5161476411&ssPageNa
>me=STRK:MEWA:IT

I would wait.  I just purchased some from this exact same vendor.  They did
not work exactly as I'd hoped.  He is trying to help me figure it out, since
he claims that several other buyers have had success.

The best I can get is RG output (no blue), and only on some of my monitors.

I beeped out the compelete pinout for these adapters.  The wiring of
an HP stock EVC-VGA adapter (which works on all of my monitors), and both 
connectors of these adapters is as follows: (reference: 
http://www.montest.com/technote.html)

            Goes to HP          Your VGA #1            Your VGA #2
VGA pin     EVC pin             goes to EVC:           goes to EVC:
-------     --------            ------------           ------------
1 Red       C1 Red              C1 Red                 1  TMDS DATA 2+
2 Green     C2 Green            C2 Green               14 TMDS CLK+
3 Blue      C4 Blue             C3 PX CLOCK OUT        22 TMDS DATA 0+
4 ID2       nc                  nc                     nc
5 GND Test  25 DDC RTN          9  1394 PAIR A, DATA   9  1394 PAIR A, DATA
6 GND       C5 Common GND RTN   C5 Common GND RTN      3  TMDS DATA 2 RTN
7 GND       C5 Common GND RTN   C5 Common GND RTN      25 DDC RTN
8 GND       C% Common GND RTN   C5 Common GND RTN      23 TMDS DATA 0 RTN
9 "nc"      28 +5 VDC           10 1394 PAIR A, DATA+  10 1894 PAIR A, DATA+
10 GND      4  SYNC RTN         C5 Common GND RTN      27 DDC CLK SCL
11 ID0      nc                  nc                     nc
12 ID1      nc                  nc                     nc
13 HS       5  HORIZ. SYNC TTL  C4 Blue                21 TMDS DATA 0
14 VS       6  VERT. SYNC TTL   24 STEREO SYNC TTL     2  TMDS DATA 2
15 ID3      27 DDC CLK SCL      29 1394 PAIR B, CLK+   19 1394 VG

As you can see from the pinouts, no matter what, there is no way to get
a complete VGA signal from either of the VGA connectors on the adapter.
This baffles me as to why anyone would manufacture an adapter with this
pinout.
 
It almost looks as if the #2 VGA connector was intended to drive a
DVI input--but it doesn't seem like it's quite there either.
Even between the two VGA connectors, there are no sync signals at
all--I'm not sure how exactly my monitor that can display this (minus
the blue, of course) is syncing the signal (possibly sync-on-green, 
but some of my monitors that don't work with these adapters accept 
sync-on-green as well).

-- 
Respectfully,

Nicholas Leippe
Sales Team Automation, LLC
1335 West 1650 North, Suite C
Springville, UT  84663 +1 801.853.4090
http://www.salesteamautomation.com
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Subject: [parisc-linux] Postgresql Math errors on a 710 & 735
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All,

I am trying to Postgresql working on my 710 and 735 hp systems and I am having problems with some math functions and 
the postgresql fokes sent me over here.  Does anyone know of any problems with math on these systems.  In the next few 
days, I will put together a small C program as an example of the problem

One example of an issue is just "select 'infinity'::float8;" 

If this is NOT the correct list please let me know also.

Thanks for your time.
Jim
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Subject: Re: [parisc-linux] Postgresql Math errors on a 710 & 735
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> I am trying to Postgresql working on my 710 and 735 hp systems and I am
> having problems with some math functions and 
> the postgresql fokes sent me over here.  Does anyone know of any problems
> with math on these systems.  In the next few 
> days, I will put together a small C program as an example of the problem
> 
> One example of an issue is just "select 'infinity'::float8;" 

No issues are known.  PA 1.1 lacks the fneg instruction.  Thus, you
may have issues with -0.0 if you use unsafe_math_optimizations.  It
also lacks some convert insns that are provided in hardware in PA 2.0.
The kernel emulates some of the insns that are missing.  I think you
need to provide a C example showing the problem(s).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] /proc/stat became wrong during 2.6.10-pa6 pa7
	transition???
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On Thu, Feb 03, 2005 at 08:38:06AM +0100, Joel Soete wrote:
> I previously mentioned that top didn't report anymore right values since
> 2.6.10-pa7:
> ...
> Cpu(s):  0.7% us,  0.0% sy,  0.0% ni,  0.0% id,  0.0% wa, 99.3% hi,  0.0%
> si
> ...
> 
> while 2.6.10-pa6 was seems more relevant:
> ...
> Cpu(s):  0.7% us,  1.0% sy,  0.0% ni, 98.4% id,  0.0% wa,  0.0% hi,  0.0%
> si
> ...
> 
> and btw I noticed that strange stat reports too:
> 2.6.10-pa6 # cat /proc/stat
> cpu  23248 3356 64981 4508884 30377 0 147
> cpu0 23248 3356 64981 4508884 30377 0 147
> ...
> i.e. 7 field ok
> OTC
> 2.6.10-pa7 # car /proc/stat
> cpu  88358 16430 0 0 0 33813422 0 0
> cpu0 88358 16430 0 0 0 33813422 0 0
> ...
> fwfw _8_ field ???

Aha, found it.  Thanks for pointing out that /proc/stat was the
guilty party.  Don't worry about the 7/8 fields, that's a red herring.
The problem was that we weren't calling irq_enter/irq_exit().  I just
committed that fix, but now we appear to *never* spend any time in
interrupts.  I think I know how to fix that, but we'll see ...

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: [parisc-linux] 2.6.11-rc3 failled to build on b2k
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Hi all,

2.6.11-rc3-pa? build and boot fine on b180 (unfortunately no more N4k, it=

definitely goes back to production :_()
But strangely failed to build on b2k (64bit but would also on 32 bit)
...
   hppa64-linux-ld   -r -o init/built-in.o init/main.o init/version.o ini=
t/mounts.o
init/initramfs.o init/calibrate.o
  hppa64-linux-ld   -o .tmp_vmlinux1 -T arch/parisc/kernel/vmlinux.lds ar=
ch/parisc/kernel/head.o
  init/built-in.o --start-group  us
r/built-in.o  arch/parisc/mm/built-in.o  arch/parisc/kernel/built-in.o  a=
rch/parisc/math-emu/built-in.o
arch/parisc/kernel/init_task
.o  kernel/built-in.o  mm/built-in.o  fs/built-in.o  ipc/built-in.o  secu=
rity/built-in.o
 crypto/built-in.o  lib/lib.a  
arch/parisc/
lib/lib.a `hppa64-linux-gcc -print-libgcc-file-name`  lib/built-in.o  arc=
h/parisc/lib/built-in.o
`hppa64-linux-gcc -print-libgcc-fil
e-name`  drivers/built-in.o  sound/built-in.o  net/built-in.o --end-group=

fs/built-in.o(.text.fh_verify+0x23c): In function `fh_verify':
: undefined reference to `export_op_default'
fs/built-in.o(.text.fh_compose+0x2a0): In function `fh_compose':
: undefined reference to `export_op_default'
fs/built-in.o(.text.fh_update+0xd0): In function `fh_update':
: undefined reference to `export_op_default'
fs/built-in.o(.text._fh_update+0x34): In function `_fh_update':
: undefined reference to `export_op_default'
fs/built-in.o(.data.rel.ro+0x678): In function `.LC16':
: undefined reference to `find_exported_dentry'
make[1]: *** [.tmp_vmlinux1] Error 1
make: *** [vmlinux] Error 2
...

A short analyse, it seems that's because NFSD was builtin while EXPORTFS
was a module in my previous config file. Imho EXPORTFS would be build as
NFSD?

Is the following hunk would do the trick:
--- fs/Kconfig.Orig     2005-02-03 16:45:13.562275206 +0100
+++ fs/Kconfig  2005-02-03 16:46:36.496469111 +0100
@@ -1400,6 +1400,7 @@
        tristate "NFS server support"
        depends on INET
        select LOCKD
+       select EXPORTFS
        select SUNRPC
        help
          If you want your Linux box to act as an NFS *server*, so that o=
ther
=3D=3D=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D=3D=3D

Thanks in advance,
    Joel


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Subject: [parisc-linux] /proc/stat became wrong during 2.6.10-pa6 pa7
	transition???
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Hello all,

I previously mentioned that top didn't report anymore right values since
2.6.10-pa7:
...
Cpu(s):  0.7% us,  0.0% sy,  0.0% ni,  0.0% id,  0.0% wa, 99.3% hi,  0.0%=

si
...

while 2.6.10-pa6 was seems more relevant:
...
Cpu(s):  0.7% us,  1.0% sy,  0.0% ni, 98.4% id,  0.0% wa,  0.0% hi,  0.0%=

si
...

and btw I noticed that strange stat reports too:
2.6.10-pa6 # cat /proc/stat
cpu  23248 3356 64981 4508884 30377 0 147
cpu0 23248 3356 64981 4508884 30377 0 147
...
i.e. 7 field ok
OTC
2.6.10-pa7 # car /proc/stat
cpu  88358 16430 0 0 0 33813422 0 0
cpu0 88358 16430 0 0 0 33813422 0 0
...
fwfw _8_ field ???

while src (afaik fs/proc/proc_misc.c:show_stat()) doesn't change at all:
...
        seq_printf(p, "cpu  %llu %llu %llu %llu %llu %llu %llu\n",
                (unsigned long long)jiffies_64_to_clock_t(user),
                (unsigned long long)jiffies_64_to_clock_t(nice),
                (unsigned long long)jiffies_64_to_clock_t(system),
                (unsigned long long)jiffies_64_to_clock_t(idle),
                (unsigned long long)jiffies_64_to_clock_t(iowait),
                (unsigned long long)jiffies_64_to_clock_t(irq),
                (unsigned long long)jiffies_64_to_clock_t(softirq));
        for_each_online_cpu(i) {

                /* Copy values here to work around gcc-2.95.3, gcc-2.96 *=
/
                user =3D kstat_cpu(i).cpustat.user;
                nice =3D kstat_cpu(i).cpustat.nice;
                system =3D kstat_cpu(i).cpustat.system;
                idle =3D kstat_cpu(i).cpustat.idle;
                iowait =3D kstat_cpu(i).cpustat.iowait;
                irq =3D kstat_cpu(i).cpustat.irq;
                softirq =3D kstat_cpu(i).cpustat.softirq;
                seq_printf(p, "cpu%d %llu %llu %llu %llu %llu %llu %llu\n=
",
                        i,
                        (unsigned long long)jiffies_64_to_clock_t(user),
                        (unsigned long long)jiffies_64_to_clock_t(nice),
                        (unsigned long long)jiffies_64_to_clock_t(system)=
,
                        (unsigned long long)jiffies_64_to_clock_t(idle),
                        (unsigned long long)jiffies_64_to_clock_t(iowait)=
,
                        (unsigned long long)jiffies_64_to_clock_t(irq),
                        (unsigned long long)jiffies_64_to_clock_t(softirq=
));
        }
...

any idea?

Joel


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From: Steve Bromwich <hppa@fop.ns.ca>
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Subject: [parisc-linux] Re: 2.6 upgrade problems
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Xref: news.gmane.org gmane.linux.ports.parisc:22326

OK, I had the chance to sit down and do some research and
fixed/ameliorated most of these problems - hopefully this will help
someone else out!

On Mon, 17 Jan 2005, Steve Bromwich wrote:

> I just upgraded my 715/100XC to 2.6.10-pa10 from 2.4.27, and I've hit a
> few snags. First is I've lost serial console ("if this is the last message
> you see..."). I did make oldconfig from the 2.4.27 config, but I think
> I've fluffed it and missed the driver. Can someone see what I've missed in
> the attached config?

make oldconfig didn't transfer across the settings for serial console, for
some reason; CONFIG_SERIAL_8250_CONSOLE didn't get set (I'm assuming this
is the right one for my machine rather than CONFIG_SERIAL_MUX_CONSOLE).
I'm going to upgrade the kernel to the latest version rather than
recompile this one, and reboot it when I next open the case.

> Next, vmstat appears to fail with a segfault:

OK, this is a bit fiddly. Add the following to /etc/apt/sources.list:

deb-src http://www.backports.org/debian woody procps

Then apt-get source --compile procps. This will fail will an error from ld
before it completes creating the package. Copy
./debian/procps/lib/libproc-3.2.3.so to /lib and run ldconfig. Rename
/usr/bin/vmstat to /usr/bin/vmstat.old and copy vmstat to /usr/bin. Not
the ideal solution (debsums will complain, if you use it) but it works.

> brain:/var/adm# vmstat 1
> Unknown HZ value! (7) Assume 100.

I'm not sure about Unknown HZ. I happened to upgrade an x86 box with the
backported procps and got the same error.

> Finally (and it may not have been a great idea to do this at the same time
> as doing the kernel upgrade) I put in a DAT drive I acquired. This is
> failing when I try to write to it with the following error in dmesg:
>
> st0: Error with sense data: Info fld=0x14, Current st0: sense = f0  3
> ASC= c ASCQ= 0
> Raw sense data:0xf0 0x00 0x03 0x00 0x00 0x00 0x14 0x2c 0x00 0x00 0x00 0x00
> 0x0c 0x00 0x00 0x00 0x00 0x85 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0
> x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
> 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00

This looks to be a problem with termination, from discussion with other
people. I'm going to crack the case in my CFT and check the jumpers on all
the drives to make sure.

Cheers, Steve
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] b2k 32bit 2.6.11-rc3-pa3 panic during the night :-(
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> -- Original Message --
> To: parisc-linux-cvs@lists.parisc-linux.org
> Date: Sun,  6 Feb 2005 20:46:29 -0700 (MST)
> From: willy@parisc-linux.org (Matthew Wilcox)
> Reply-To: parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux-cvs] linux-2.6 willy
> 
> 
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	willy@cvs.parisc-linux.org	2005-02-06 20:46:29
> 
> Modified files:
> 	arch/parisc/kernel: irq.c 
> 
> Log message:
> 	Remove sufficiently obsolete DEBUG_IRQ code
> 	Remove limit on times around the loop.  If we exit the loop while
> 	interrupts are still pending, we'll only be re-interrupted as soon
> 	as we exit the function.
> 	Remove now-unnecessary slab.h include
> 
Hello pa,

I just got this text to fix the cvs update lvel I used as kernel.

I just got very  unsual panic on b2k runing a 32bit 2.6.11-rc3-pa3:
Backtrace:
 [<1014dda4>] cache_grow+0xd4/0x1ac
 [<1014e024>] cache_alloc_refill+0x1a8/0x26c
 [<1014e348>] kmem_cache_alloc+0x48/0x4c
 [<101828d8>] d_alloc+0x34/0x1cc
 [<10176d10>] real_lookup+0x104/0x178
 [<10177130>] do_lookup+0xb4/0xcc
 [<10177934>] link_path_walk+0x7ec/0xe78
 [<1017831c>] path_lookup+0xc0/0x1ec
 [<10178630>] __user_walk+0x5c/0x78
 [<10172974>] vfs_lstat+0x20/0x64
 [<10172e7c>] sys_lstat64+0x18/0x40
 [<1010d120>] syscall_exit+0x0/0x14


Kernel Fault: Code=3D15 regs=3D1913c600 (Addr=3D2c60c84c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 104fb50c 1014dda4 104e78c8
r04-07  1c125000 10999a40 00000010 000000d0
r08-11  00000001 000423a8 00000001 000423a8
r12-15  00031590 00043808 000423c5 0000002f
r16-19  00030d90 00030d90 00031590 2c60c8c8
r20-23  2c60c83c 000051ae 00000294 000000d0
r24-27  104e783c 1c125000 10999a40 103ce010
r28-31  2c60c83c 00000210 1913c600 10150710
sr0-3   00000000 00000085 00000000 000019b0
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1014db30 1014db34
 IIR: 6b800020    ISR: 00000000  IOR: 2c60c84c
 CPU:        0   CR30: 1913c000 CR31: 10494000
 ORIG_R28: 00000000
 IAOQ[0]: alloc_slabmgmt+0x30/0x6c
 IAOQ[1]: alloc_slabmgmt+0x34/0x6c
 RP(r2): cache_grow+0xd4/0x1ac
Kernel panic - not syncing: Kernel Fault
 <0>Rebooting in 120 seconds..

fwiw no pb on b180 with same kernel level and same unstable debian instal=
l?

Any idea or similar event on other model?

Thanks,
    Joel

-------------------------------------------------------------------------=
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Subject: [parisc-linux] Re: [patch 2.6.11-rc3-bk4] Correctly dereference
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On Wed, Feb 09, 2005 at 04:18:16PM -0800, Luck, Tony wrote:
> >Likely yes.
> >That's one of two errors I see on parisc-linux when a register
> >is corrupted (segfaults are the symptom). And unfortunately
> >the context switching has a corner case the tickles that bug
> >on a regular basis. :^(
> 
> I wrote a test program that loads up random values into registers
> (just r1-r31, a bunch of stacked registers, and f2-f127 for now)
> and then checks that all the registers haven't changed value a
> few thousand times, before reloading with a new set of random
> values.

Does anyone have an interest in writing such a program for parisc?

The above comes from the ia64-linux mailing list.

We can run multiple instances on one cpu to test
the basic context switching is working right.

If it fails consistently with the same register getting corrupted,
(gr26 is a suspect now), a code audit would be useful to confirm
that the particular register is always getting properly saved/restored
in a context switch.

If this test does NOT fail, then I'll suspect something with
our syscall/glibc interface is fishy.

thanks,
grant
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] ext2 vs ext3 on hppa
Date: Fri, 11 Feb 2005 00:16:29 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:22329

Hi all,
ext3 perf isn't so good on parisc.
I've posted profile data for kernel builds:

http://lists.parisc-linux.org/pipermail/parisc-linux/2004-November/025196.html

But not for "tar". I can't find the data I collect before. :^(
ISTR the culprit in ext3 was the bitmap search using atomic ops.
On parisc, atomic ops are terrible since it requires a spinlock/op/unlock
sequence.

I was asked about tar perf again and decided to post some results.
If someone tells me which wiki page to add this, I'll pound parts
of the data below into it.

In a nut shell, I timed unpacking the linux source tree:

FS 	real		user		sys
ext2	2m10.814s	0m53.424s	0m6.084s
ext3	3m46.577s	0m54.619s	1m34.553s
xfs	1m22.205s	0m53.952s	0m9.739s
md0+xfs	1m27.740s	0m54.550s	0m12.885s

User time is predominantly bzip2 running.

I didn't realize xfs can schedule work better than ext2 on a single disk.
Adding md striping adds ~6% overhead...that's not so good.
It's possible I need bigger chunks and that would go away.

I don't know if defaults are comparable between xfs and ext3.
Is one implementing more or better features by default than the other?

I'll be looking at mdadm+xfs for future file systems to see
if I can break it. Or I'll have to live without journaling on
"stable" build machines. The ext3 "tar" performance is just
unacceptable.

BTW, I get segfaults on the ext3 G

"raw" data follows.

grant

grundler@riot:~$ uname -a
Linux riot 2.6.11-rc3-pa3 #6 SMP Mon Feb 7 04:25:07 UTC 2005 parisc64 GNU/Linux

grundler@riot:~$ cat /proc/cpuinfo 
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8700 (PCX-W2)
cpu MHz         : 650.000000
model           : 9000/800/A500-6X
...
processor       : 1
cpu family      : PA-RISC 2.0
cpu             : PA8700 (PCX-W2)
cpu MHz         : 650.000000
model           : 9000/800/A500-6X
model name      : Crescendo 650 W2
...


riot:/# lsscsi
[1:0:15:0]   disk    SEAGATE  ST336704LC       HP01  /dev/sda
[4:0:0:0]    disk    SEAGATE  ST318451LC       HP00  /dev/sdb
[4:0:1:0]    disk    SEAGATE  ST318451LC       HP01  /dev/sdc
[4:0:2:0]    disk    SEAGATE  ST318451LC       HP00  /dev/sdd
[4:0:3:0]    disk    SEAGATE  ST318451LC       HP01  /dev/sde
[4:0:8:0]    disk    SEAGATE  ST318451LC       HP00  /dev/sdf
[4:0:9:0]    disk    SEAGATE  ST318451LC       HP00  /dev/sdg
[4:0:10:0]   disk    SEAGATE  ST318451LC       HP00  /dev/sdh
[4:0:12:0]   disk    SEAGATE  ST318451LC       HP01  /dev/sdi
[4:0:13:0]   disk    SEAGATE  ST318451LC       HP01  /dev/sdj
[4:0:14:0]   enclosu HP       A5272A           HP04  -       
[5:0:0:0]    disk    SEAGATE  ST318451LC       HP01  /dev/sdk
[5:0:1:0]    disk    SEAGATE  ST318451LC       HP00  /dev/sdl
[5:0:2:0]    disk    SEAGATE  ST318451LC       HP00  /dev/sdm
[5:0:3:0]    disk    SEAGATE  ST318451LC       HP00  /dev/sdn
[5:0:8:0]    disk    SEAGATE  ST318451LC       HP00  /dev/sdo
[5:0:9:0]    disk    SEAGATE  ST318451LC       HP00  /dev/sdp
[5:0:10:0]   disk    SEAGATE  ST318451LC       HP00  /dev/sdq
[5:0:11:0]   disk    SEAGATE  ST318451LC       HP00  /dev/sdr
[5:0:12:0]   disk    SEAGATE  ST318451LC       HP01  /dev/sds
[5:0:13:0]   disk    SEAGATE  ST318451LC       HP01  /dev/sdt
[5:0:14:0]   enclosu HP       A5272A           HP05  -       
riot:/# lspci -vt
-+-[30]-+-02.0  LSI Logic / Symbios Logic 53c1010 66MHz  Ultra3 SCSI Adapter
 |      \-02.1  LSI Logic / Symbios Logic 53c1010 66MHz  Ultra3 SCSI Adapter
 +-[20]---00.0  LSI Logic / Symbios Logic 53c1010 66MHz  Ultra3 SCSI Adapter
 +-[10]---00.0  Broadcom Corporation NetXtreme BCM5701 Gigabit Ethernet
 \-[00]-+-00.0  Digital Equipment Corporation DECchip 21142/43
        +-01.0  LSI Logic / Symbios Logic 53C896/897
        +-01.1  LSI Logic / Symbios Logic 53C896/897
        +-02.0  LSI Logic / Symbios Logic 53c875
        +-02.1  LSI Logic / Symbios Logic 53c875
        +-04.0  Hewlett-Packard Company: Unknown device 128d
        \-04.1  Hewlett-Packard Company Diva Serial [GSP] Multiport UART
...

# mkfs /dev/sdk
mke2fs 1.35 (28-Feb-2004)
/dev/sdk is entire device, not just one partition!
Proceed anyway? (y,n) y
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
2223872 inodes, 4445810 blocks
222290 blocks (5.00%) reserved for the super user
First data block=0
136 block groups
32768 blocks per group, 32768 fragments per group
16352 inodes per group
...
riot:/mnt# time tar xjf linux-2.6.11-rc3-pa3.tar.bz2 

real    2m10.814s
user    0m53.424s
sys     0m6.084s
riot:/mnt#
...

riot:/# mke2fs -j /dev/sdk
mke2fs 1.35 (28-Feb-2004)
/dev/sdk is entire device, not just one partition!
Proceed anyway? (y,n) y
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
2223872 inodes, 4445810 blocks
222290 blocks (5.00%) reserved for the super user
First data block=0
136 block groups
32768 blocks per group, 32768 fragments per group
16352 inodes per group
...
riot:/# mount /dev/sdk /mnt
riot:/# cd /mnt
riot:/mnt# time tar xjf ~/linux-2.6.11-rc3-pa3.tar.bz2 

real    3m46.577s
user    0m54.619s
sys     1m34.553s
riot:/mnt# 

riot:/# mkfs -t xfs /dev/sdk
meta-data=/dev/sdk               isize=256    agcount=16, agsize=277863 blks
         =                       sectsz=512  
data     =                       bsize=4096   blocks=4445808, imaxpct=25
         =                       sunit=0      swidth=0 blks, unwritten=1
naming   =version 2              bsize=4096  
log      =internal log           bsize=4096   blocks=2560, version=1
         =                       sectsz=512   sunit=0 blks
realtime =none                   extsz=65536  blocks=0, rtextents=0

riot:/mnt# time tar xjf ~/linux-2.6.11-rc3-pa3.tar.bz2 

real    1m22.205s
user    0m53.952s
sys     0m9.739s


riot:/# mdadm -C /dev/md0 -l 0 -n 6 /dev/sdb /dev/sdk /dev/sdc /dev/sdl /dev/sdd /dev/sdm
...
riot:/# cat /proc/mdstat 
Personalities : [linear] [raid0] [raid1] 
md0 : active raid0 sdm[5] sdd[4] sdl[3] sdc[2] sdk[1] sdb[0]
      106699008 blocks 64k chunks
...
riot:/# mkfs -t xfs /dev/md0
meta-data=/dev/md0               isize=256    agcount=16, agsize=1667184 blks
         =                       sectsz=512  
data     =                       bsize=4096   blocks=26674752, imaxpct=25
         =                       sunit=16     swidth=96 blks, unwritten=1
naming   =version 2              bsize=4096  
log      =internal log           bsize=4096   blocks=13024, version=1
         =                       sectsz=512   sunit=0 blks
realtime =none                   extsz=393216 blocks=0, rtextents=0
riot:/# mount /dev/md0 /mnt
riot:/# cd /mnt
riot:/mnt# time tar xjf ~/linux-2.6.11-rc3-pa3.tar.bz2 

real    1m27.740s
user    0m54.550s
sys     0m12.885s

[ after running some kernel builds on the xfs file system ]
grundler@riot:/mnt$ time tar xjf /root/linux-2.6.11-rc3-pa3.tar.bz2 

real    2m35.000s
user    0m55.749s
sys     0m21.332s

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From - Thu Nov 08 21:32:57 2018
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] ext2 vs ext3 on hppa
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On Fri, Feb 11, 2005 at 09:53:22AM -0700, Grant Grundler wrote:
> And I suspect -02 data is with willy's vma_prev patch applied
> that he proposed here:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2004-November/025210.html

Probably not -- it crashes the machine ;-)

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Fri, Feb 11, 2005 at 04:54:15PM +0000, Matthew Wilcox wrote:
> On Fri, Feb 11, 2005 at 09:53:22AM -0700, Grant Grundler wrote:
> > And I suspect -02 data is with willy's vma_prev patch applied
> > that he proposed here:
> > http://lists.parisc-linux.org/pipermail/parisc-linux/2004-November/025210.html
> 
> Probably not -- it crashes the machine ;-)

Ok :^(

We called flush_kernel_icache_page half as many times (5541 vs 2217).
And flush_user_icache_range_asm 1/5th a often (1279 vs 270).
Both are SMP kernels.

I have no idea what else might result in such a major difference.

grant
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On Fri, Feb 11, 2005 at 02:08:12PM +0100, Corn? Beerse wrote:
...
> >In a nut shell, I timed unpacking the linux source tree:
> >
> >FS 	real		user		sys
> >ext2	2m10.814s	0m53.424s	0m6.084s
> >ext3	3m46.577s	0m54.619s	1m34.553s
> >xfs	1m22.205s	0m53.952s	0m9.739s
> >md0+xfs	1m27.740s	0m54.550s	0m12.885s
...
> It would be nice if you can give similar stats for different architectures, 
> either within pa-risc or even on other platforms.

Sorry, who ever is interested in that comparison can provide that data. :^)

> I don't know what you mean by mdstripping, If it is something like raid-0 
> or raid-1 (or the combination) then striping is only faster on reading, not 
> on writing.

Yes, I meant raid0.

> You'd definitly also peek at reiserfs, Its the default fs used in SuSE 
> linux.

That sounds like an excercise for someone else.

> If you intend to re-do your tests, think about the next: To test read 
> speed, `cp -r` to /dev/null. To test write speed of small files, tar from 
> the fastest read-system. (for large files, just copy from /dev/zero).

ok. My guess was with 4GB of RAM, I was mostly operating from buffer cache.
Maybe next time I'll use ram disks instead.

> >BTW, I get segfaults on the ext3.
> 
> Thats a bad sign...

My bad. I was running two instances of "make" in the same source tree.
I had forgotten about the "while :" loop that was doing builds.
/me hides

thanks,
grant
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Grant Grundler wrote:

> Hi all,
> ext3 perf isn't so good on parisc.

Well, From what I know on the linux filesystem types, I can imagine that ext3 is 
not the fastest among them.

ext2 is a (the?) linux normal filesystem: data storage is straigt-forward and such.
ext3 is basically ext2 with added journalling. For reading, it should be just as 
fast as ext2. For writing it is definitly slower than ext2 since it does ext2 
and journalling. As far as I know, the journalling is added to get additional 
data-safety; the filesystem-check is definitly faster/better than for ext2. I 
expect this is at the cost of writing performance.

I don't know xfs, I expect it to be comparable with reiserfs in that it is a 
journalling filesystem, designed from scratch. For these filesystems, I expect 
better performance than ext3 and, depending on several parameters, even better 
performance than ext2.

Between ext2 and xfs/reiser I expect ext2 to be better for large files and the 
others better for lots of small files.

> I've posted profile data for kernel builds:
> 
> http://lists.parisc-linux.org/pipermail/parisc-linux/2004-November/025196.html
> 
> But not for "tar". I can't find the data I collect before. :^(
> ISTR the culprit in ext3 was the bitmap search using atomic ops.
> On parisc, atomic ops are terrible since it requires a spinlock/op/unlock
> sequence.
> 
> I was asked about tar perf again and decided to post some results.
> If someone tells me which wiki page to add this, I'll pound parts
> of the data below into it.
> 
> In a nut shell, I timed unpacking the linux source tree:
> 
> FS 	real		user		sys
> ext2	2m10.814s	0m53.424s	0m6.084s
> ext3	3m46.577s	0m54.619s	1m34.553s
> xfs	1m22.205s	0m53.952s	0m9.739s
> md0+xfs	1m27.740s	0m54.550s	0m12.885s

This clearly shows, that the filesystems do have some differences in performance 
and all are in system-time, the user-time is comparable.

It would be nice if you can give similar stats for different architectures, 
either within pa-risc or even on other platforms.

> 
> User time is predominantly bzip2 running.

There are several things in comparing filesystems. Some (ext2 I expect) 
filesystems are good in hanldling large files. Some (I expect the journaling 
ones) are good in handling many small files.

With bzip2 running, I expect you use packing or unpacking the kernel-source for 
a test. To get raw figures, better use `tar`, `cp -R` or `dd`. And be sure to 
work from one disk to an other.

> 
> I didn't realize xfs can schedule work better than ext2 on a single disk.
> Adding md striping adds ~6% overhead...that's not so good.
> It's possible I need bigger chunks and that would go away.

I don't know what you mean by mdstripping, If it is something like raid-0 or 
raid-1 (or the combination) then striping is only faster on reading, not on writing.

> 
> I don't know if defaults are comparable between xfs and ext3.
> Is one implementing more or better features by default than the other?

As above: ext3 is ext2 with added journalling. xfs is designed from the ground 
up. I'm surprised to see that ext3 takes 15 times more system-time!

> 
> I'll be looking at mdadm+xfs for future file systems to see
> if I can break it. Or I'll have to live without journaling on
> "stable" build machines. The ext3 "tar" performance is just
> unacceptable.

You'd definitly also peek at reiserfs, Its the default fs used in SuSE linux.

If you intend to re-do your tests, think about the next: To test read speed, `cp 
-r` to /dev/null. To test write speed of small files, tar from the fastest 
read-system. (for large files, just copy from /dev/zero).

> 
> BTW, I get segfaults on the ext3 G

Thats a bad sign...



my 2 cents

CBee
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On Fri, Feb 11, 2005 at 12:16:29AM -0700, Grant Grundler wrote:
> Hi all,
> ext3 perf isn't so good on parisc.
> I've posted profile data for kernel builds:
> 
> http://lists.parisc-linux.org/pipermail/parisc-linux/2004-November/025196.html
> 
> But not for "tar". I can't find the data I collect before. :^(
> ISTR the culprit in ext3 was the bitmap search using atomic ops.
> On parisc, atomic ops are terrible since it requires a spinlock/op/unlock
> sequence.

I switched the ext2/3 bitops to use the non-atomic ops.  Tried it on nicol
(dual 550MHz PA8600) ...

$ time tar xjf ~/linux-2.6.11-rc3.tar.bz2 

real    25m4.557s
user    1m7.262s
sys     24m59.092s

ouch.  time to do some profiling, i guess, instead of assuming I saw
the problem and the fix ...

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] ext2 vs ext3 on hppa
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On Fri, Feb 11, 2005 at 12:16:29AM -0700, Grant Grundler wrote:
> But not for "tar". I can't find the data I collect before. :^(

I found them:
-rw-r--r--  1 root root  33517 Jan  9 21:27 prof-2.6.10-pa6-01
-rw-r--r--  1 root root  23770 Jan 16 19:46 prof-2.6.10-pa6-02

and posted both on
	http://www.parisc-linux.org/~grundler/prof-a500-65/

> ISTR the culprit in ext3 was the bitmap search using atomic ops.
> On parisc, atomic ops are terrible since it requires a spinlock/op/unlock
> sequence.

Yeah, this seems to be right.
I gather this is only an issue for SMP kernels.

grundler <506>sort -rnk 3 prof-2.6.10-pa6-01
 55063 _spin_lock                               1376.5750
 42958 ext3_test_allocatable                     97.6318
  5974 rb_next                                   57.4423
  5541 flush_kernel_icache_page                  55.4100
   800 fdsync                                    40.0000
  1279 flush_user_icache_range_asm               35.5278
 35341 bitmap_search_next_usable_block           30.6780
  1328 _spin_lock_irqsave                        27.6667
  1470 machine_restart                           22.9688
   747 flush_user_dcache_range_asm               20.7500
  1043 cpu_idle                                  14.4861
   135 fisync                                     8.4375
   647 __clear_user_page_asm                      5.7768
...


Sorry - I didn't note exactly which workload the above represented.

And I suspect -02 data is with willy's vma_prev patch applied
that he proposed here:
http://lists.parisc-linux.org/pipermail/parisc-linux/2004-November/025210.html

grundler <509>sort -rnk 3 prof-2.6.10-pa6-02
 61105 _spin_lock                               1527.6250
 43040 ext3_test_allocatable                     97.8182
  4902 rb_next                                   47.1346
 35646 bitmap_search_next_usable_block           30.9427
  2217 flush_kernel_icache_page                  22.1700
   969 _spin_lock_irqsave                        20.1875
  1055 machine_restart                           16.4844
   764 cpu_idle                                  10.6111
   157 fdsync                                     7.8500
   270 flush_user_icache_range_asm                7.5000
   209 flush_user_dcache_range_asm                5.8056
...

hth, 
grant
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Has anybody been able to boot a 2.6.11-rc3-pa* kernel SMP with slab
debugging enabled? when i tried, i triggered a BUG_ON():

kernel BUG at mm/slab.c:1493!
Backtrace:
 [<10130b34>] printk+0x20/0x2c
 [<10163d94>] check_irq_off+0x40/0x50
 [<10165eec>] do_ccupdate_local+0x10/0x5c
 [<10114ec4>] ipi_interrupt+0x198/0x250
 [<10155ae0>] handle_IRQ_event+0x50/0xa4
 [<10155bcc>] __do_IRQ+0x98/0x1e4

the BUG_ON() is checking that irqs are disabled when calling
do_ccupdate_local(), which is called as a smp function using IPI.

are interrupts supposed to be disabled when ipi_interrupt() is called?
did this behaviour change with the recent irq handling changes?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Xref: news.gmane.org gmane.linux.ports.parisc:22337

This patch cleans up our early console hacks so that we use the
"approved" way of doing things. I've only tested this on a J6k...
looking for testers on other systems.

Especially interesting would be something that uses non-8250 consoles,
such as E/K class systems that use the serial mux console. I suspect
some changes are needed there. If you can test on such a system, and see
some problems [*], please let me know. likely we will need to move the
register_console() call from mux_probe() into a separate initcall.

[*] during startup, the console print messages should show up regularly,
and only once. symptoms of problems are if your console prints pause
for a long time, or if you start seeing each line printed twice.

randolph

Index: arch/parisc/Kconfig
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/Kconfig,v
retrieving revision 1.25
diff -u -p -r1.25 Kconfig
--- arch/parisc/Kconfig	4 Feb 2005 19:34:34 -0000	1.25
+++ arch/parisc/Kconfig	11 Feb 2005 22:22:59 -0000
@@ -19,6 +19,9 @@ config MMU
 config STACK_GROWSUP
 	def_bool y
 
+config EARLY_PRINTK
+	def_bool y
+
 config UID16
 	bool
 
Index: arch/parisc/kernel/pdc_cons.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/pdc_cons.c,v
retrieving revision 1.7
diff -u -p -r1.7 pdc_cons.c
--- arch/parisc/kernel/pdc_cons.c	16 Aug 2004 17:25:27 -0000	1.7
+++ arch/parisc/kernel/pdc_cons.c	11 Feb 2005 22:22:59 -0000
@@ -39,11 +39,6 @@
  *  can or will be a fully functional linux console.
  */
 
-/* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems. 
- * On production kernels EARLY_BOOTUP_DEBUG should be undefined. */
-#undef EARLY_BOOTUP_DEBUG
-
-
 #include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/console.h>
@@ -81,8 +76,11 @@ void pdc_printf(const char *fmt, ...)
 	len = vscnprintf(buf, sizeof(buf), fmt, args);
 	va_end(args);
 
-	for (i = 0; i < len; i++)
+	for (i = 0; i < len; i++) {
+		if (buf[i] == '\n')
+			pdc_iodc_outc('\r');
 		pdc_iodc_outc(buf[i]);
+	}
 }
 
 int pdc_console_poll_key(struct console *co)
@@ -112,14 +110,11 @@ static struct console pdc_cons = {
 	.write =	pdc_console_write,
 	.device =	PDC_CONSOLE_DEVICE,
 	.setup =	pdc_console_setup,
-	.flags =	CON_BOOT|CON_PRINTBUFFER|CON_ENABLED,
+	.flags =	CON_PRINTBUFFER,
 	.index =	-1,
 };
 
 static int pdc_console_initialized;
-extern unsigned long con_start;	/* kernel/printk.c */
-extern unsigned long log_end;	/* kernel/printk.c */
-
 
 static void pdc_console_init_force(void)
 {
@@ -135,14 +130,10 @@ static void pdc_console_init_force(void)
 	register_console(&pdc_cons);
 }
 
-void __init pdc_console_init(void)
+void __init 
+pdc_console_init(void)
 {
-#if defined(EARLY_BOOTUP_DEBUG) || defined(CONFIG_PDC_CONSOLE)
 	pdc_console_init_force();
-#endif
-#ifdef EARLY_BOOTUP_DEBUG
-	printk(KERN_INFO "Initialized PDC Console for debugging.\n");
-#endif
 }
 
 
@@ -155,12 +146,17 @@ void pdc_console_die(void)
 
 	printk(KERN_INFO "Switching from PDC console\n");
 
-	/* Don't repeat what we've already printed */
-	con_start = log_end;
-
 	unregister_console(&pdc_cons);
 }
 
+void __init 
+disable_early_printk(void)
+{
+#ifndef CONFIG_PDC_CONSOLE
+	pdc_console_die();
+#endif
+}
+
 
 /*
  * Used for emergencies. Currently only used if an HPMC occurs. If an
@@ -180,9 +176,6 @@ void pdc_console_restart(void)
 	while ((console = console_drivers) != NULL)
 		unregister_console(console_drivers);
 
-	/* Don't repeat what we've already printed */
-	con_start = log_end;
-	
 	/* force registering the pdc console */
 	pdc_console_init_force();
 }
Index: arch/parisc/kernel/setup.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/setup.c,v
retrieving revision 1.12
diff -u -p -r1.12 setup.c
--- arch/parisc/kernel/setup.c	31 Dec 2004 17:26:35 -0000	1.12
+++ arch/parisc/kernel/setup.c	11 Feb 2005 22:22:59 -0000
@@ -157,7 +157,8 @@ void __init setup_arch(char **cmdline_p)
 #endif
 
 #if defined(CONFIG_VT) && defined(CONFIG_DUMMY_CONSOLE)
-	conswitchp = &dummy_con;	/* we use take_over_console() later ! */
+	if (!conswitchp)
+		conswitchp = &dummy_con;	/* we use take_over_console() later ! */
 #endif
 
 }
Index: kernel/printk.c
===================================================================
RCS file: /var/cvs/linux-2.6/kernel/printk.c,v
retrieving revision 1.26
diff -u -p -r1.26 printk.c
--- kernel/printk.c	12 Jan 2005 20:18:05 -0000	1.26
+++ kernel/printk.c	11 Feb 2005 22:23:04 -0000
@@ -92,8 +92,8 @@ static int log_buf_len = __LOG_BUF_LEN;
  * must be masked before subscripting
  */
 static unsigned long log_start;	/* Index into log_buf: next char to be read by syslog() */
-unsigned long con_start;	/* Index into log_buf: next char to be sent to consoles */
-unsigned long log_end;	/* Index into log_buf: most-recently-written-char + 1 */
+static unsigned long con_start;	/* Index into log_buf: next char to be sent to consoles */
+static unsigned long log_end;	/* Index into log_buf: most-recently-written-char + 1 */
 static unsigned long logged_chars; /* Number of chars produced since last read+clear operation */
 
 /*
@@ -793,11 +793,6 @@ void register_console(struct console * c
 
 	if (!(console->flags & CON_ENABLED))
 		return;

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[...]
> 
> My bad. I was running two instances of "make" in the same source tree.
> I had forgotten about the "while :" loop that was doing builds.
> /me hides
> 
mmm when I did (sorry not any more able to do it :_( ) similar test it seems that segfault to only occured with option -j2 (or 
greater) and only on smp system (on such b2k the same test _never_ segfault also on ext3)

hth,
	Joel
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On Fri, Feb 11, 2005 at 02:35:25PM -0800, Randolph Chung wrote:
> Especially interesting would be something that uses non-8250 consoles,
> such as E/K class systems that use the serial mux console. I suspect
> some changes are needed there. If you can test on such a system, and see
> some problems [*], please let me know. likely we will need to move the
> register_console() call from mux_probe() into a separate initcall.
> 
> [*] during startup, the console print messages should show up regularly,
> and only once. symptoms of problems are if your console prints pause
> for a long time, or if you start seeing each line printed twice.

My comments in >>> <<<, this is the boot log from Knapps

Linux version 2.6.11-rc3-pa5 (willy@palinux) (gcc version 3.3.5 (Debian 1:3.3.5-5)) #9 Sun Feb 13 18:53:41 MST 2005
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 000058f0 00000491 00000000 00000002 53ad0a91 100000f1 00000008 000000b2 000000b2
vers  00000201
CPUID vers 14 rev 5 (0x000001c5)
model 9000/889/K460
Total Memory: 1920 Mb
Built 1 zonelists
Kernel command line: HOME=/ root=/dev/sda3 console=ttyB0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 4096 (order: 12, 65536 bytes)
Switching from PDC console
>>> Long pause here <<<
Linux version 2.6.11-rc3-pa5 (willy@palinux) (gcc version 3.3.5 (Debian 1:3.3.5-5)) #9 Sun Feb 13 18:53:41 MST 2005
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 000058f0 00000491 00000000 00000002 53ad0a91 100000f1 00000008 000000b2 000000b2
vers  00000201
CPUID vers 14 rev 5 (0x000001c5)
model 9000/889/K460
Total Memory: 1920 Mb
Built 1 zonelists
Kernel command line: HOME=/ root=/dev/sda3 console=ttyB0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 4096 (order: 12, 65536 bytes)
Switching from PDC console
Console: colour dummy device 160x64
Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 131072 (order: 7, 524288 bytes)
Memory: 1966080k available
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
NET: Registered protocol family 16
>>>lots more here<<<
Serial mux driver (8 ports) Revision: 0.3
ttyB0 at MMIO 0xf1900800 (polled) is a Mux
>>>etc<<<
Debian GNU/Linux 3.1 knapps ttyB0

knapps login: root
Password: 
Last login: Mon Feb 14 01:56:30 2005 on ttyB0
Linux knapps 2.6.11-rc3-pa5 #9 Sun Feb 13 18:53:41 MST 2005 parisc GNU/Linux


-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Hi all,

Don't know if somebody else also emcountered such panic:
Backtrace:
 [<101bb588>] journal_add_journal_head+0xdc/0x13c
 [<101b4dd8>] journal_dirty_data+0x64/0x1b0
 [<101a6be4>] ext3_journal_dirty_data+0x1c/0x60
 [<101a69a8>] walk_page_buffers+0xe0/0xf0
 [<101a72b8>] ext3_ordered_writepage+0x168/0x1fc
 [<1018d770>] mpage_writepages+0x28c/0x3a0
 [<1018bae4>] __sync_single_inode+0x5c/0x278
 [<1018bd68>] __writeback_single_inode+0x68/0x168
 [<1018c034>] sync_sb_inodes+0x1cc/0x310
 [<1018c1e8>] writeback_inodes+0x70/0xd4
 [<10149088>] background_writeout+0xb4/0x10c
 [<10149e40>] __pdflush+0x138/0x204
 [<10149f2c>] pdflush+0x20/0x2c
 [<1013c564>] kthread+0xdc/0xe4
 [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=3D15 regs=3D17c84840 (Addr=3D20702352)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 10201800 101bb588 20702352
r04-07  122be660 122be660 122be660 00000000
r08-11  00000000 00000000 00001000 1230c3e8
r12-15  101a7120 17d1a990 00002000 00000000
r16-19  101a7150 17c84508 00000000 00000002
r20-23  00000000 00000000 20702352 00000000
r24-27  00000030 00000000 20702352 10375010
r28-31  20702352 100c74f4 17c84840 100c74fc
sr0-3   00000000 00000000 00000000 0000534b
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10201f1c 10201f20
 IIR: 0ed91222    ISR: 00000000  IOR: 20702352
 CPU:        0   CR30: 17c84000 CR31: 103d0000
 ORIG_R28: 17c84980
 IAOQ[0]: memset+0x24/0xa8
 IAOQ[1]: memset+0x28/0xa8
 RP(r2): journal_add_journal_head+0xdc/0x13c
Kernel panic - not syncing: Kernel Fault

Here on a b180 running 2.6.11-rc3-pa3 (while the system should be idle)

Any idea about known ext3 pb?

Joel



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On Mon, Feb 14, 2005 at 02:12:36AM +0000, Matthew Wilcox wrote:
> On Fri, Feb 11, 2005 at 02:35:25PM -0800, Randolph Chung wrote:
> > Especially interesting would be something that uses non-8250 consoles,
> > such as E/K class systems that use the serial mux console. I suspect
> > some changes are needed there. If you can test on such a system, and see
> > some problems [*], please let me know. likely we will need to move the
> > register_console() call from mux_probe() into a separate initcall.
> > 
> > [*] during startup, the console print messages should show up regularly,
> > and only once. symptoms of problems are if your console prints pause
> > for a long time, or if you start seeing each line printed twice.

I'm not sure we can avoid the long pauses.  Look at what happens:

> Switching from PDC console
> Console: colour dummy device 160x64

The console starts up and disables the early console, using the dummy driver.
Then we wait while we do a buswalk ...

> Serial mux driver (8 ports) Revision: 0.3
> ttyB0 at MMIO 0xf1900800 (polled) is a Mux

... and eventually the mux driver gets registered and starts spewing
everything out.

So there's still a long period of time during which we have no console
driver registered and it's frequently the most interesting part from
the point of view of drivers or devices having trouble ;-(

Based on this, CON_BOOT seems like a superior solution.  That's annoying.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] a b180 panic with 2.6.11-rc3-pa3
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On Mon, 14 Feb 2005 11:30:43 +0000, Joel Soete <soete.joel@tiscali.be> wrote:
> Hi all,
> 
> Don't know if somebody else also emcountered such panic:
> Backtrace:

> [<101bb588>] journal_add_journal_head+0xdc/0x13c
> [<101b4dd8>] journal_dirty_data+0x64/0x1b0
> [<101a6be4>] ext3_journal_dirty_data+0x1c/0x60
> [<101a69a8>] walk_page_buffers+0xe0/0xf0
> [<101a72b8>] ext3_ordered_writepage+0x168/0x1fc
> [<1018d770>] mpage_writepages+0x28c/0x3a0
> [<1018bae4>] __sync_single_inode+0x5c/0x278
> [<1018bd68>] __writeback_single_inode+0x68/0x168
> [<1018c034>] sync_sb_inodes+0x1cc/0x310
> [<1018c1e8>] writeback_inodes+0x70/0xd4
> [<10149088>] background_writeout+0xb4/0x10c
> [<10149e40>] __pdflush+0x138/0x204
> [<10149f2c>] pdflush+0x20/0x2c
> [<1013c564>] kthread+0xdc/0xe4
> [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24
>
> [...]
> 
> IASQ: 00000000 00000000 IAOQ: 10201f1c 10201f20
> IIR: 0ed91222    ISR: 00000000  IOR: 20702352
> CPU:        0   CR30: 17c84000 CR31: 103d0000
> ORIG_R28: 17c84980
> IAOQ[0]: memset+0x24/0xa8
> IAOQ[1]: memset+0x28/0xa8
> RP(r2): journal_add_journal_head+0xdc/0x13c
> Kernel panic - not syncing: Kernel Fault
> 
> Here on a b180 running 2.6.11-rc3-pa3 (while the system should be idle)

Long time ago I have seen a couple of those. I can't remember what
exact kernel version(s) it was, but it happened with the earlier 2.6
kernels.
Pretty much the same output (I think I once posted it on the mailing
list), but I only got this when I tried out some graphics card (ATI,
Voodoo2 or Matrox?) and shortly after xdm started (and not every
time). I think 64bit kernels triggered it more easily.

But I haven't gotten one of those lately (at least not with 2.6.10-rc1
and later, with Matrox graphics card).

> Any idea about known ext3 pb?

Good question. I have a different problem than the one above: In very
rare occations, when transferring very big files onto a USB-hdd
(ext3), the files are being silently corrupted (no kernel log
messages). But I don't know whether that problem is related to ext3 or
usb-storage or a faulty h/w.

Back to your problem: I don't know/think that there are any severe
problems with ext3, at least I was using it on PA for a long time and
it worked quite well. But there is always the possibility that there
are some hidden bugs that are triggered in rare situations however ...


Greetings,
  Max
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Subject: Re: [parisc-linux] BUG XFS 2.6.11-rc4-pa1
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Hello Grant,

into <http://www.kernel.org/pub/linux/kernel/v2.6/testing/cset/> of today=

I read some bug fix in xfs but not yet in rc4-bk2 patch (most probably in=

bk3)

hth,
    Joel

> -- Original Message --
> Date: Sun, 13 Feb 2005 21:44:45 -0700
> From: Grant Grundler <grundler@parisc-linux.org>
> To: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] BUG XFS 2.6.11-rc4-pa1
> 
> 
> On Sun, Feb 13, 2005 at 09:13:23PM -0700, Grant Grundler wrote:
> > Linux riot 2.6.11-rc4-pa0 #2 SMP Sun Feb 13 19:25:48 PST 2005 parisc6=
4
> GNU/Linux
> ...
> >  IAOQ[0]: xfs_ialloc_read_agi+0x164/0x188 [xfs]
> >  IAOQ[1]: xfs_ialloc_read_agi+0x168/0x188 [xfs]
> 
> I rebooted and tried to resurrect the filesystem but fsck.xfs seems
> to be a NOP and mount refused to mount it:
> 
> riot:/usr/src# mount -t xfs /dev/md0 /mnt
> XFS mounting filesystem md0
> XFS: Log inconsistent (didn't find previous header)
> XFS: failed to find log head
> XFS: log mount/recovery failed: error 5
> XFS: log mount failed
> mount: /dev/md0: can't read superblock
> riot:/usr/src#
> 
> I ran "mkfs -t xfs /dev/md0", mounted md0, and copied the kernel
> source tree back on to /mnt. cvs up -A worked fine. Suggests either
> a rare bug or binary compatibility issue between -rc3 and -rc4.
> 
> I'll let the kernel builds and spew beat on xfs some more tonight.
> 
> grant
> _______________________________________________
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> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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Subject: Re: [parisc-linux] a b180 panic with 2.6.11-rc3-pa3
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Xref: news.gmane.org gmane.linux.ports.parisc:22344

Hello Max,

>
> On Mon, 14 Feb 2005 11:30:43 +0000, Joel Soete <soete.joel@tiscali.be>
wrote:
> > Hi all,
> >
> > Don't know if somebody else also emcountered such panic:
> > Backtrace:
>
> > [<101bb588>] journal_add_journal_head+0xdc/0x13c
> > [<101b4dd8>] journal_dirty_data+0x64/0x1b0
> > [<101a6be4>] ext3_journal_dirty_data+0x1c/0x60
> > [<101a69a8>] walk_page_buffers+0xe0/0xf0
> > [<101a72b8>] ext3_ordered_writepage+0x168/0x1fc
> > [<1018d770>] mpage_writepages+0x28c/0x3a0
> > [<1018bae4>] __sync_single_inode+0x5c/0x278
> > [<1018bd68>] __writeback_single_inode+0x68/0x168
> > [<1018c034>] sync_sb_inodes+0x1cc/0x310
> > [<1018c1e8>] writeback_inodes+0x70/0xd4
> > [<10149088>] background_writeout+0xb4/0x10c
> > [<10149e40>] __pdflush+0x138/0x204
> > [<10149f2c>] pdflush+0x20/0x2c
> > [<1013c564>] kthread+0xdc/0xe4
> > [<1010ac5c>] ret_from_kernel_thread+0x1c/0x24
> >
> > [...]
> >
> > IASQ: 00000000 00000000 IAOQ: 10201f1c 10201f20
> > IIR: 0ed91222    ISR: 00000000  IOR: 20702352
> > CPU:        0   CR30: 17c84000 CR31: 103d0000
> > ORIG_R28: 17c84980
> > IAOQ[0]: memset+0x24/0xa8
> > IAOQ[1]: memset+0x28/0xa8
> > RP(r2): journal_add_journal_head+0xdc/0x13c
> > Kernel panic - not syncing: Kernel Fault
> >
> > Here on a b180 running 2.6.11-rc3-pa3 (while the system should be idl=
e)
>
mmm today on this same system with rc4-pa1 now:
Backtrace:
 [<101bb644>] journal_add_journal_head+0xdc/0x13c
 [<101b4e94>] journal_dirty_data+0x64/0x1b0
 [<101a6ca0>] ext3_journal_dirty_data+0x1c/0x60
 [<101a6a64>] walk_page_buffers+0xe0/0xf0
 [<101a6ddc>] ext3_ordered_commit_write+0x68/0x144
 [<10144db8>] generic_file_buffered_write+0x23c/0x68c
 [<10145474>] __generic_file_aio_write_nolock+0x26c/0x450
 [<101458c0>] generic_file_aio_write+0x88/0x164
 [<101a3858>] ext3_file_write+0x34/0xd0
 [<101658b4>] do_sync_write+0xb4/0xf4
 [<101659d4>] vfs_write+0xe0/0x158
 [<10165b50>] sys_write+0x5c/0xa8
 [<1010c120>] syscall_exit+0x0/0x14
...
IASQ: 00000000 00000000 IAOQ: 10201fe0 10201fe4
 IIR: 0ed91222    ISR: 00000000  IOR: d2b304d2
 CPU:        0   CR30: 108e8000 CR31: 103d0000
 ORIG_R28: 108e8900
 IAOQ[0]: memset+0x24/0xa4
 IAOQ[1]: memset+0x28/0xa4
 RP(r2): journal_add_journal_head+0xdc/0x13c
Kernel panic - not syncing: Kernel Fault

This time while 'apt-get dist-update' on a chroot disk :-(

I tried to reboot but pdc didn't find any more boot devices:
...
Main Menu: Enter command > sea
...
   Path Number        Device Path              Device Type
   -----------        -----------------        -----------
Error detected on single-ended FWSCSI interface.
No devices found.
...

even after a reset.
I have to cycle power off/on the external disk (a fw scsi disk connected
to the fw ctrlr) to be able to reboot then complete the apt update withou=
t
any pb??

...
> Pretty much the same output (I think I once posted it on the mailing
> list), but I only got this when I tried out some graphics card (ATI,
> Voodoo2 or Matrox?) and shortly after xdm started (and not every
> time). I think 64bit kernels triggered it more easily.
>
Here not additional pci card
...
>
> > Any idea about known ext3 pb?
>
> Good question. I have a different problem than the one above: In very
> rare occations, when transferring very big files onto a USB-hdd
> (ext3), the files are being silently corrupted (no kernel log
> messages).
mmm no such device available here to make test (sorry) (on a b2k obviousl=
y
;-) )

> But I don't know whether that problem is related to ext3 or
> usb-storage or a faulty h/w.
>
Considering the strange status in which was the external disk, it should
be possible to be some h/w failure demonstration occuring from time to ti=
me??

> Back to your problem: I don't know/think that there are any severe
> problems with ext3, at least I was using it on PA for a long time and
> it worked quite well.
The same for me ;-)

> But there is always the possibility that there
> are some hidden bugs that are triggered in rare situations however ...
>
Thanks for feedback,
    Joel


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Subject: [parisc-linux] BUG 2.6.11-rc3-pa3 (I think) do_wp_page
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*sigh*
gsyprf11 just panic'd (Data Page Fault) with 2.6.11-rc3-pa3 (I think).
I don't know if anything special was running - just gcc builds?

grant


Backtrace:
 [<000000001019b6c4>] do_wp_page+0x434/0xd88
 [<000000001019d99c>] handle_mm_fault+0x34c/0x9c0
 [<000000001011314c>] do_page_fault+0x39c/0x458
 [<0000000010115050>] handle_interruption+0x328/0x790
 [<00000000101070a4>] intr_check_sig+0x0/0xc


Kernel Fault: Code=15 regs=0000001108ddc570 (Addr=0000001110000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  0000000000000000 0000000000000000 000000001019b6c4 0000001100380fc8
r04-07  000000001053e620 000000110dafc000 00000000005e30a4 00000001aff7b760
r08-11  00000011002ff720 00000001ad063ac0 00000010fffffb25 0000001104d07f18
r12-15  00000011021ac008 00000001ad063b38 00000000000d8ac8 00000000000d8708
r16-19  00000011034dbb38 0000000000000000 0000000000000000 005e818000000006
r20-23  00000007005e8498 0000000300000004 005e850800000005 00000000105cd098
r24-27  000000000800000f 0000001110000000 000000110dafd000 000000001053e620
r28-31  00000011002ff720 0000001108ddc540 0000001108ddc570 00000000404620db

sr0-3   00000000059df800 00000000059e3800 0000000000000000 00000000059df800
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101012c4 00000000101012c8
 IIR: 0f2010d3    ISR: 0000000000000000  IOR: 0000001110000000
 CPU:        0   CR30: 0000001108ddc000 CR31: 0000000010508000
 ORIG_R28: 0000000000000000
 IAOQ[0]: copy_user_page_asm+0xa4/0xb0
 IAOQ[1]: copy_user_page_asm+0xa8/0xb0
 RP(r2): do_wp_page+0x434/0xd88
Kernel panic - not syncing: Kernel Fault

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Subject: [parisc-linux] BUG 2.6.11-rc4-pa1 (plus) sym2 panic
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Willy,
I just tried to boot top of branch kernel on gsyprf11
and it data page faulted in sym2 at boot time.
I thought this bug got fixed already...*sigh*

You are welcome to use gsyprf11 for debugging if
jda doesn't need it urgently for anything. Please
arrange a time with him offlist.

The "Press Q..." stuff is from "CL" command from GSP.
Please ignore that bit.

thanks,
grant


Firmware Version  42.00

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2001, Hewlett-Packard Company, All rights reserved

Press Q/q to quit, Enter to continue: 

------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      650  MHz   Active                 Functional         750 KB 1.5 MB
      1      650  MHz   Idle                   Functional         750 KB 1.5 MB

  Central Bus Speed (in MHz)  :        120  
  Available Memory            :    8388608  KB
  Good Memory Required        :      25820  KB

   Primary boot path:    0/0/1/1.15          
   Alternate boot path:  0/0/2/1.15          
   Console path:         0/0/4/1.643         
   Keyboard path:        0/0/4/1.0           


---- Main Menu ---------------------------------------------------------------


Press Q/q to quit, Enter to continue: 

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > bo
Interact with IPL (Y, N, or Cancel)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 1


Press Q/q to quit, Enter to continue: 


HARD Booted.
palo ipl 1.5 root@c3k Fri May 14 16:17:38 MDT 2004

Partition Start(MB) End(MB) Id Type
1               1     513   82 swap
2             514     524   f0 Palo
3             525    2051   83 ext2
4            2052    8682   83 ext2

PALO(F0) partition contains:
    0/vmlinux64 6673841 bytes @ 0x20140000
Current command line:
3/boot/vmlinux-2.6.10-pa6-64SMP root=/dev/sda3 HOME=/ console=ttyS0 TERM=linux
 0: 3/boot/vmlinux-2.6.10-pa6-64SMP


Press Q/q to quit, Enter to continue: 
 1: root=/dev/sda3
 2: HOME=/
 3: console=ttyS0
 4: TERM=linux

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? 0
3/boot/vmlinux-2.6.11-rc4-pa1  
Current command line:
3/boot/vmlinux-2.6.11-rc4-pa1 root=/dev/sda3 HOME=/ console=ttyS0 TERM=linux
 0: 3/boot/vmlinux-2.6.11-rc4-pa1
 1: root=/dev/sda3
 2: HOME=/
 3: console=ttyS0
 4: TERM=linux

<#>    edit the numbered field


Press Q/q to quit, Enter to continue: 
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? b

Command line for kernel: 'root=/dev/sda3 HOME=/ console=ttyS0 TERM=linux palo_kernel=3/boot/vmlinux-2.6.11-rc4-pa1'
Selected kernel: /boot/vmlinux-2.6.11-rc4-pa1 from partition 3
ELF64 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 4513520 mediaptr 0x1000
Segment 1 load 00550000 size 290792 mediaptr 0x44f000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.11-rc4-pa1 (grundler@gsyprf11.external.hp.com) (gcc version 3.4.4 20041218 (prerelease) (Debian 3.4.3-6)) #1 SMP Tue Feb 15 23:18:42 PST 2005
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00005e20 00000491 00000000 00000001 73a33d02 100000f0 00000008 000000b2 000000b2

Press Q/q to quit, Enter to continue: 

vers  00000203
CPUID vers 19 rev 8 (0x00000268)
capabilities 0x5
model 9000/800/A500-6X
Memory Ranges:
 0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 Mb
 1) Start 0x0000000100000000 End 0x00000001ffffffff Size   4096 Mb
 2) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 Mb
Total Memory: 8192 Mb
SMP: bootstrap CPU ID is 0
Built 3 zonelists
Kernel command line: root=/dev/sda3 HOME=/ console=ttyS0 TERM=linux palo_kernel=3/boot/vmlinux-2.6.11-rc4-pa1
PID hash table entries: 4096 (order: 12, 131072 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)
Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Memory: 8388608k available
Mount-cache hash table entries: 256 (order: 0, 4096 bytes)
Brought up 1 CPUs
NET: Registered protocol family 16

Press Q/q to quit, Enter to continue: 

Searching for devices...
Found devices:
1. Crescendo 650 W2 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5e2, 0x00004 }
2. Crescendo 650 W2 at 0xfffffffffffa2000 [162] { 0, 0x0, 0x5e2, 0x00004 }
3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x09b, 0x00009 }
4. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
5. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
7. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
8. Elroy PCI Bridge at 0xfffffffffed3c000 [0/6] { 13, 0x0, 0x782, 0x0000a }
Enabling PDC_PAT chassis codes support.
Releasing cpu 1 now, hpa=fffffffffffa2000
FP[1] enabled: Rev 1 Model 19
CPU(s): 2 x PA8700 (PCX-W2) at 650.000000 MHz
Setting cache flush threshold to 485700 (2 CPUs online)
SBA found Astro 2.1 at 0xfffffffffed00000
LBA version TR4.0 (0x5) found at 0xfffffffffed30000
iosapic: no IRTE for 0000:00:04.0 (IRQ not connected?)
LBA version TR4.0 (0x5) found at 0xfffffffffed34000
LBA version TR4.0 (0x5) found at 0xfffffffffed38000

Press Q/q to quit, Enter to continue: 

LBA version TR4.0 (0x5) found at 0xfffffffffed3c000
SCSI subsystem initialized
unwind_init: start = 0x103ee400, end = 0x10409ec0, entries = 7084
Performance monitoring counters enabled for Crescendo 650 W2
Initializing Cryptographic API
PDC Stable Storage facility v0.09
Soft power switch support not available.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 17 ports, IRQ sharing enabled
ttyS0 at MMIO 0xfffffffff8000000 (irq = 22) is a 16550A
ttyS1 at MMIO 0xfffffffff8000008 (irq = 22) is a 16550A
ttyS2 at MMIO 0xfffffffff8000010 (irq = 22) is a 16550A
ttyS3 at MMIO 0xfffffffff8000038 (irq = 22) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
sym0: <896> rev 0x7 at pci 0000:00:01.0 irq 19


Press Q/q to quit, Enter to continue: 
sym0: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18n
sym1: <896> rev 0x7 at pci 0000:00:01.1 irq 20
sym1: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.1.18n
sym1: SCSI BUS mode change from SE to SE.
sym1: SCSI BUS has been reset.
  Vendor: SEAGATE   Model: ST39173LC         Rev: 6381
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym1:15:0: tagged command queuing enabled, command queue depth 16.
 target1:0:15: Beginning Domain Validation
 target1:0:15: wide asynchronous.
 target1:0:15: Domain Validation skipping write tests
 target1:0:15: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
 target1:0:15: Ending Domain Validation
sym2: <875> rev 0x37 at pci 0000:00:02.0 irq 20
sym2: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
sym2: SCSI BUS has been reset.


Press Q/q to quit, Enter to continue: 
scsi2 : sym-2.1.18n
sym3: <875> rev 0x37 at pci 0000:00:02.1 irq 21
sym3: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
sym3: SCSI BUS has been reset.
scsi3 : sym-2.1.18n
  Vendor: HP 73.4G  Model: ST373405LC        Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym3:15:0: tagged command queuing enabled, command queue depth 16.
 target3:0:15: Beginning Domain Validation
 target3:0:15: wide asynchronous.
 target3:0:15: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
 target3:0:15: Ending Domain Validation
sym4: <896> rev 0x1 at pci 0000:30:02.0 irq 26
sym4: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym4: SCSI BUS has been reset.
scsi4 : sym-2.1.18n
  Vendor: HP        Model: D5989C            Rev: 1.03
  Type:   Processor                          ANSI SCSI revision: 02
 target4:0:5: Beginning Domain Validation
 target4:0:5: Ending Domain Validation


Press Q/q to quit, Enter to continue: 
  Vendor: SEAGATE   Model: ST39102LC         Rev: 7C03
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym4:10:0: tagged command queuing enabled, command queue depth 16.
 target4:0:10: Beginning Domain Validation
 target4:0:10: wide asynchronous.
 target4:0:10: Domain Validation skipping write tests
 target4:0:10: FAST-40 WIDE SCSI 80.0 MB/s ST (25.0 ns, offset 15)
 target4:0:10: Ending Domain Validation
Backtrace:
 [<00000000102e4f00>] sym_setsync+0xa0/0xc0
 [<00000000102e8138>] sym_int_sir+0xe40/0x1780
 [<00000000102e93c4>] sym_interrupt+0x94c/0xc50
 [<00000000102dfd14>] sym53c8xx_intr+0x54/0x138
 [<000000001017ce1c>] handle_IRQ_event+0x74/0xf8
 [<000000001017d050>] __do_IRQ+0x1b0/0x2b8
 [<0000000010116350>] do_cpu_irq_mask+0xc0/0x120
 [<0000000010107074>] intr_return+0x0/0x24
 [<000000001011d4dc>] cpu_idle+0x2c/0x48
 [<0000000010111620>] rest_init+0x48/0x58
 [<00000000105509e4>] start_kernel+0x3e4/0x440


Press Q/q to quit, Enter to continue: 
 [<000000001010d078>] __udivdi3+0x0/0x888


Kernel Fault: Code=26 regs=0000000010504c00 (Addr=00000000000001e0)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000001000001110 Not tainted
r00-03  0000000000000000 ffffffffffffff83 00000000102eb7b8 00000000103c8a10
r04-07  0000000000000000 0000000014a1e000 000000000000000b 000000000000000a
r08-11  000000000000000f 0000000000000000 0000000000000001 000000001045a908
r12-15  00000000000000f2 00000000000000fa 00000000000000f0 00000000000000ff
r16-19  00000000105042c0 00000000f000022c 00000000f0002a7c 0000000000030d40
r20-23  0000000000000000 0000000000000320 000000000000000a 00000000000000fa
r24-27  0000000008000000 00000000000000fa 0000000000030dbd 000000001053e640
r28-31  0000000014a1e508 00061b7a00000320 0000000010504c00 0000000000000001
sr0-3   0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000102eb5cc 00000000102eb5d0
 IIR: 529303c0    ISR: 0000000000000000  IOR: 00000000000001e0


Press Q/q to quit, Enter to continue: 
 CPU:        0   CR30: 0000000010504000 CR31: 0000000010508000
 ORIG_R28: 000000001053e640
 IAOQ[0]: sym_announce_transfer_rate+0xd4/0x360
 IAOQ[1]: sym_announce_transfer_rate+0xd8/0x360
 RP(r2): sym_announce_transfer_rate+0x2c0/0x360
Kernel panic - not syncing: Kernel Fault


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] BUG 2.6.11-rc4-pa1 XFS data page fault
Date: Wed, 16 Feb 2005 00:45:04 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:22347

On Wed, Feb 16, 2005 at 08:28:15AM +0100, Joel Soete wrote:
> >  RP(r2): 0xa7f9a6c0
> > Kernel panic - not syncing: Kernel Fault
> >
> Any chance to know what 0xa7f9a6c0 is (iirc calling address)?

return pointer - yes, the callers address.

> and fwiw it's different from previous panic: RP was 0xfa285480?

both look like garbage to me.

> mmm patch-2.6.11-rc4-bk3 (including some xfs fixes) is small, could you let
> a try?

Sure - tomorrow. You have a URL?
(Sorry - I think you posted it once before)

thanks,
grant
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Subject: Re: [parisc-linux] a b180 panic with 2.6.11-rc3-pa3
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On Mon, 14 Feb 2005 22:13:59 +0000
Max Grabert <parisc@gmail.com> wrote:

> On Mon, 14 Feb 2005 11:30:43 +0000, Joel Soete <soete.joel@tiscali.be>
> wrote:
> > Hi all,
> > 
> > Don't know if somebody else also emcountered such panic:
> > Backtrace:
> 
> > [<101bb588>] journal_add_journal_head+0xdc/0x13c
> > [<101b4dd8>] journal_dirty_data+0x64/0x1b0
> > [<101a6be4>] ext3_journal_dirty_data+0x1c/0x60
> > [<101a69a8>] walk_page_buffers+0xe0/0xf0
> > [<101a72b8>] ext3_ordered_writepage+0x168/0x1fc

Got hit by a similar panic during the night (the kernel uptime was < 5h)

Kernel Fault code 15
Top stack was:

cache_grow
cache_alloc_refill
kmem_cache_alloc
journal_alloc_journal

and the rest was identical to your dump.

IAOQ was alloc_slabmgmt and gr2 was cache_grow

This was 2.6.11-rc3-pa5 freshly built with Kernel Hacking turned off.

HTH

Thibaut VARENE
The PA/Linux ESIEE Team
http://www.pateam.org/
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Subject: [parisc-linux] BUG 2.6.11-rc4-pa1 XFS data page fault
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Bad night. :^(

Running 2.6.11-rc4-pa0-plus (equivalent to -pa1) on a500-65 (riot).
xfs ran spew for 48h but panic'd when I did a "cvs up -A"
to the CVS source tree on the same file system.

This file system is a raid0 of 6 disks (3 per scsi bus).
Then default "mkfs -t xfs /dev/md0".

grant


Backtrace:
[ argh...no backtrace got dumped ]

Kernel Fault: Code=15 regs=0000000032860d20 (Addr=00000027452d93e1)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000100001111 Not tainted
r00-03  0000000000000000 0000002647c44fe0 00000000a7f9a6c0 00000000f9aa3000
r04-07  0000000000000001 0000000000242000 00000000732bcab8 0000000032860ae8
r08-11  0000000000000001 00000000732bcab8 0000000000011c1b 0000000000000010
r12-15  0000000000000001 00000000f9aa3288 00000000f9aa3150 0000000000000001
r16-19  00000000328607b8 00000000cd3bb090 0000000032860560 00000000fd694400


Press Q/q to quit, Enter to continue: 
r20-23  00000000002a2a40 000000000000055c 0000000058414749 00000000cb631400
r24-27  00000027452d93e0 0000000000000001 0000000000242000 0000000000242000
r28-31  00000000cb631400 0000000032860cf0 0000000032860d20 0000000000000000
sr0-3   000000000a95f800 000000000a95f800 0000000000000000 000000000a95e800
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000002a1574 00000000002a1578
 IIR: 0f021014    ISR: 0000000000000000  IOR: 00000027452d93e1
 CPU:        0   CR30: 0000000032860000 CR31: 0000000010508000
 ORIG_R28: 0000000000242000
 IAOQ[0]: xfs_ialloc_read_agi+0x164/0x188 [xfs]
 IAOQ[1]: xfs_ialloc_read_agi+0x168/0x188 [xfs]
 RP(r2): 0xa7f9a6c0
Kernel panic - not syncing: Kernel Fault
 

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Subject: Re: [parisc-linux] BUG 2.6.11-rc4-pa1 XFS data page fault
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On Tue, Feb 15, 2005 at 11:55:39PM -0700, Grant Grundler wrote:
> Bad night. :^(

Yes, teh new kernels don't seem so safe. I'm not very happy to move my
a500 out of 2.6.9-rc2-pa11... 'cause it "just works (tm)"
 
> Running 2.6.11-rc4-pa0-plus (equivalent to -pa1) on a500-65 (riot).
> xfs ran spew for 48h but panic'd when I did a "cvs up -A"
> to the CVS source tree on the same file system.
> 
> This file system is a raid0 of 6 disks (3 per scsi bus).
> Then default "mkfs -t xfs /dev/md0".

The rp is not correct, but doesn't have to be until reload before
function return, it can actually be used as scratch. IAOQ/IASQ is a 
better indicator of what the cpu was doing at the time.

> Kernel Fault: Code=15 regs=0000000032860d20 (Addr=00000027452d93e1)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001000000000100001111 Not tainted
> r00-03  0000000000000000 0000002647c44fe0 00000000a7f9a6c0 00000000f9aa3000
> r04-07  0000000000000001 0000000000242000 00000000732bcab8 0000000032860ae8
> r08-11  0000000000000001 00000000732bcab8 0000000000011c1b 0000000000000010
> r12-15  0000000000000001 00000000f9aa3288 00000000f9aa3150 0000000000000001
> r16-19  00000000328607b8 00000000cd3bb090 0000000032860560 00000000fd694400
> 
> 
> Press Q/q to quit, Enter to continue: 
> r20-23  00000000002a2a40 000000000000055c 0000000058414749 00000000cb631400
> r24-27  00000027452d93e0 0000000000000001 0000000000242000 0000000000242000
> r28-31  00000000cb631400 0000000032860cf0 0000000032860d20 0000000000000000
> sr0-3   000000000a95f800 000000000a95f800 0000000000000000 000000000a95e800
> sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000002a1574 00000000002a1578
>  IIR: 0f021014    ISR: 0000000000000000  IOR: 00000027452d93e1
>  CPU:        0   CR30: 0000000032860000 CR31: 0000000010508000
>  ORIG_R28: 0000000000242000
>  IAOQ[0]: xfs_ialloc_read_agi+0x164/0x188 [xfs]
>  IAOQ[1]: xfs_ialloc_read_agi+0x168/0x188 [xfs]
>  RP(r2): 0xa7f9a6c0
> Kernel panic - not syncing: Kernel Fault

The sp is aligned, and at some nominal value. I'm not sure what IIR that
works out to be, can you disassemble your kernel at that point to see
the faulting instruction?

c.

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On Thu February 17 2005 15:09, Grant Grundler wrote:
> On Thu, Feb 17, 2005 at 06:53:52AM -0600, Michael S. Zick wrote:
> > A suggestion...
> > 
> > I am tracking a timing and/or race condition(s) with x86-udev.
> > Debian doesn't use it yet, they still have a hard disk based /dev.
> 
> OK. I'll try that tonight.
> 
Grant,
One of my problems was the video card driver - Manufacturers
driver has problems, X.org driver does not.  Tossing the vendor's
driver fixed that.

Still having network driver problems, haven't narrowed down all
the possible causes.

The hardware, software, and kernel are as similar as possible
with the exceptions:

works:
kernel 2.6.8, gcc 3.3.4, single processor, hard-disk /dev
problems:
kernel 2.6.x, gcc 3.3.5, dual processor, udev /dev

My guess is that the udev code is not 100% smp ready.
But it could actually be anything, including cockpit error.

Time to sneaker net (by cd-rom) code from one box
to the other.  Will advise.

Mike
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On Thu, Feb 17, 2005 at 06:53:52AM -0600, Michael S. Zick wrote:
> I am tracking a timing and/or race condition(s) with x86-udev.
> Debian doesn't use it yet, they still have a hard disk based /dev.
> But it is not a compile time option.
> If you have a 2.6.+ kernel, you have it.
> 
> Try turning it off with the command line option: 'noudev'

I thought this helped at first.  (2.6.11-rc4-pa1)
Could run spew+"make -j4" over xfs without crashing the box (panic).

Then I rebooted with a freshly built kernel (and "noudev")
and right away when I start spew on the XFS file system I get:

Kernel Fault: Code=26 regs=00000000fd0b0de0 (Addr=00000000000000c8)
...
 IAOQ[0]: xfs_btree_init_cursor+0x70/0x1b8 [xfs]
 IAOQ[1]: xfs_btree_init_cursor+0x8c/0x1b8 [xfs]
 RP(r2): xfs_btree_init_cursor+0x58/0x1b8 [xfs]

The system panics with and without the xfs patches Joel pointed me at.

The only difference in the .config was sym2 driver IOMAPPED.
I had it enabled (using IO Port space) and now disable it
since I really want MMIO space. I'm very skeptical this is
related to the problem.


> If your compile time options include devfs, try turning it 
> off also.  Use the command line option: 'nodevfs'

I don't use devfs. Willy won't let me. :^P

> In my case, for kernels 2.6.8, 2.6.9, 2.6.10 and 2.6.11 -
> If I boot from slow devices (cdrom, zip disk) everything is
> fine, If I boot from fast devices (hard disk) - something isn't
> getting setup the same.

Is there a difference in the how the devices are used?
ie. serialized vs. multiple IOs in flight at the same time?

I didn't start hitting problems until I lauched a second job
on the same file system.

thanks,
grant
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Subject: Re: [parisc-linux] BUG 2.6.11-rc4-pa1 XFS data page fault
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...
>
> Come to think of it, I wonder how the XFS bug you're pointing at can
> be related to the bug Joel and I reported with ext3:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2005-February/025
> 867.html
>
> Maybe one would like to try XFS on a non-SYM2 box and see what
> happens? That way we might have a clue whether sym2's at fault or
> something else...
>
In fact because I have not other choise (the only spare disk I found is a=

small narrow se 4Gb hp disk which I cab connect to my b180 unstable debia=
n
install), I used the zalon ncr53c710 of my b180 and just build a 2Gb xfs
on a slice of the disk with defaults:
# mkfs -t xfs /dev/sdd1
meta-data=3D/dev/sdd1              isize=3D256    agcount=3D8, agsize=3D6=
4034 blks
         =3D                       sectsz=3D512
data     =3D                       bsize=3D4096   blocks=3D512272, imaxpc=
t=3D25
         =3D                       sunit=3D0      swidth=3D0 blks, unwrit=
ten=3D1
naming   =3Dversion 2              bsize=3D4096
log      =3Dinternal log           bsize=3D4096   blocks=3D2560, version=3D=
1
         =3D                       sectsz=3D512   sunit=3D0 blks
realtime =3Dnone                   extsz=3D65536  blocks=3D0, rtextents=3D=
0

then cvs -z3 co -A linux-2.6 without any pb ;-)

I am convince that doesn't help a lot: that makes 3 big diff with Grant t=
est:
    - 32bit kernel,
    - up system (curious to see results in up too on the grant's a500: ju=
st
deconfigure a cpu, is it possible on a500?)
    - different driver (ncr53c710 in place of sym_2)

The running kernel was 2.6.11-rc4-pa1 (cvs dated 20050217) 32bit without
any other patch, no devfs support builtin (nor module).

Hth anyway,
    Joel

PS: I still have a chroot disk on this system but fw one connected to the=

symbios crtlr using sym-2.1.18n, it was dedicated to carlos libc test but=

trust I could safely convert some extra ext3 fs to xfs (I mean bakup/rest=
ore
:) ... on Monday :-(



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-------------------
> On Thu, Feb 17, 2005 at 06:53:52AM -0600, Michael S. Zick wrote:
> > I am tracking a timing and/or race condition(s) with x86-udev.
> > Debian doesn't use it yet, they still have a hard disk based /dev.
> > But it is not a compile time option.
> > If you have a 2.6.+ kernel, you have it.
> >=20
> > Try turning it off with the command line option: 'noudev'
>=20
> I thought this helped at first.  (2.6.11-rc4-pa1)
> Could run spew+"make -j4" over xfs without crashing the box (panic).
>=20
> Then I rebooted with a freshly built kernel (and "noudev")
> and right away when I start spew on the XFS file system I get:

=20
> The only difference in the .config was sym2 driver IOMAPPED.
> I had it enabled (using IO Port space) and now disable it
> since I really want MMIO space. I'm very skeptical this is
> related to the problem.

Hmmm.
Back in the early days of 2.5, i recall issues with SYM2 in MMIO mode,
so that it only worked in PIO mode (I think i had posted something on
this m-l about that). At that time i was using ext3 for that matter.

OTOH, XFS relies a lot on memory and cache quality. I don't know how
MMIO would interfere with that, but I suspect that if enabling MMIO
has the side effect of messing with that somehow, it's very likely XFS
won't like it at all. Just a random thought though.
=20
> > If your compile time options include devfs, try turning it=20
> > off also.  Use the command line option: 'nodevfs'
>=20
> I don't use devfs. Willy won't let me. :^P

well, devfs is 3v1l and deprecated, so you'd better not use it :)

> > In my case, for kernels 2.6.8, 2.6.9, 2.6.10 and 2.6.11 -
> > If I boot from slow devices (cdrom, zip disk) everything is
> > fine, If I boot from fast devices (hard disk) - something isn't
> > getting setup the same.
>=20
> Is there a difference in the how the devices are used?
> ie. serialized vs. multiple IOs in flight at the same time?
>=20
> I didn't start hitting problems until I lauched a second job
> on the same file system.

Come to think of it, I wonder how the XFS bug you're pointing at can
be related to the bug Joel and I reported with ext3:
http://lists.parisc-linux.org/pipermail/parisc-linux/2005-February/025
867.html

Maybe one would like to try XFS on a non-SYM2 box and see what
happens? That way we might have a clue whether sym2's at fault or
something else...

My 2 cents in the morning ;)

Thibaut VARENE
PA/Linux ESIEE Team
http://www.pateam.org/
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Subject: Re: [parisc-linux] a b180 panic with 2.6.11-rc3-pa3
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...
> > 
> > > [<101bb588>] journal_add_journal_head+0xdc/0x13c
> > > [<101b4dd8>] journal_dirty_data+0x64/0x1b0
> > > [<101a6be4>] ext3_journal_dirty_data+0x1c/0x60
> > > [<101a69a8>] walk_page_buffers+0xe0/0xf0
> > > [<101a72b8>] ext3_ordered_writepage+0x168/0x1fc
> 
> Got hit by a similar panic during the night (the kernel uptime was < 5h=
)
> 
> Kernel Fault code 15
> Top stack was:
> 
> cache_grow
> cache_alloc_refill
> kmem_cache_alloc
> journal_alloc_journal
> 
> and the rest was identical to your dump.
> 
> IAOQ was alloc_slabmgmt and gr2 was cache_grow
> 
I just come back because after a second read, it looks like the b2k pb re=
lated
here:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2005-February/02587=
0.html>

mmm hard to say if there are actualy the same?

> This was 2.6.11-rc3-pa5 freshly built with Kernel Hacking turned off.
> 
That said, today same panic (as related above) on b2k  32bit  but not on
b180 with the same 2.6.11-rc4-pa1 (cvs dated 20050217).

By chance, I can save a top info at the crash moment:
top - 06:25:27 up 16:33,  3 users,  load average: 0.91, 0.32, 0.16
Tasks:  97 total,   2 running,  95 sleeping,   0 stopped,   0 zombie
Cpu(s):  4.9% us, 13.2% sy,  4.9% ni,  0.0% id, 75.7% wa,  0.7% hi,  0.7%=

si
Mem:    252696k total,   249768k used,     2928k free,    46300k buffers
Swap:   255928k total,        0k used,   255928k free,   133572k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND    
                                                          
 9304 nobody    26  10  1816  844  644 R 14.8  0.3   0:00.89 find       
                                                           
...

The time stamp seems to tell me to look into cron daily ...

I will try to locate this 'find' task (probably locate db update) and see=

if I can reproduce ;-)

Thanks,
    Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:22356

On Fri February 18 2005 03:28, Thibaut VARENE wrote:
> -------------------
> > On Thu, Feb 17, 2005 at 06:53:52AM -0600, Michael S. Zick wrote:
> > > I am tracking a timing and/or race condition(s) with x86-udev.
> > > Debian doesn't use it yet, they still have a hard disk based /dev.
> > > But it is not a compile time option.
> > > If you have a 2.6.+ kernel, you have it.
> > > 
> > > Try turning it off with the command line option: 'noudev'
> > 
> > I thought this helped at first.  (2.6.11-rc4-pa1)
> > Could run spew+"make -j4" over xfs without crashing the box (panic).
> > 
> > Then I rebooted with a freshly built kernel (and "noudev")
> > and right away when I start spew on the XFS file system I get:
> 
>  
> > The only difference in the .config was sym2 driver IOMAPPED.
> > I had it enabled (using IO Port space) and now disable it
> > since I really want MMIO space. I'm very skeptical this is
> > related to the problem.
> 
Try the command line option: pci=routeirq

I know that pa-risc pci is a totally different beast, so can't say
how much effect the changes in generic affect your systems.


> Hmmm.
> Back in the early days of 2.5, i recall issues with SYM2 in MMIO mode,
> so that it only worked in PIO mode (I think i had posted something on
> this m-l about that). At that time i was using ext3 for that matter.
> 
> OTOH, XFS relies a lot on memory and cache quality. I don't know how
> MMIO would interfere with that, but I suspect that if enabling MMIO
> has the side effect of messing with that somehow, it's very likely XFS
> won't like it at all. Just a random thought though.
>  
> > > If your compile time options include devfs, try turning it 
> > > off also.  Use the command line option: 'nodevfs'
> > 
> > I don't use devfs. Willy won't let me. :^P
> 
I have to agree with Willy on this one.
Taking it out of the kernel is a step forward for the kernel designers.

The udev system, although envisioned as a replacement for devfs
is much more general and can (could, might) lead to mountable
cpu and memory segments.

? ? ? ?

To take a cpu off-line, such as for test/maintance:
mount -o remount,ro /dev/cpu/xxx

To shut it down, such as for replacement:
umount /dev/cpu/xxx

To take a memory range off-line, such as for test/maintance:
mount -o remount,ro /dev/mem/<memory-range-id>

To take failed memory range down for replacement:
umount /dev/mem/<memory-range-id>

These operations are common in both tightly coupled
smp (symetrical) systems and loosely coupled amp
(asymetrical) systems. 

A loosely coupled multiple processor system might not
have all of its cpus and memory in a single box.

Even a tightly coupled multiple processor system used
for 'non-stop' service can use these features.

This is the real power of what is now the udev system, not
just dynamic device naming.
It allows Linux to grow into both a single processor OS
and a general purpose, parallel processing OS.

It looks to me as if nearly all of the code is in-place, just
needs some changes in kernel initialization and some
general consolidation of existing kernel functions.

Mike
PS: These changes also give new reasons for including
my version of system sched.c into the kernel as an option
in 2.9.x

> well, devfs is 3v1l and deprecated, so you'd better not use it :)
> 
> > > In my case, for kernels 2.6.8, 2.6.9, 2.6.10 and 2.6.11 -
> > > If I boot from slow devices (cdrom, zip disk) everything is
> > > fine, If I boot from fast devices (hard disk) - something isn't
> > > getting setup the same.
> > 
> > Is there a difference in the how the devices are used?
> > ie. serialized vs. multiple IOs in flight at the same time?
> > 
> > I didn't start hitting problems until I lauched a second job
> > on the same file system.
> 
> Come to think of it, I wonder how the XFS bug you're pointing at can
> be related to the bug Joel and I reported with ext3:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2005-February/025
> 867.html
> 
> Maybe one would like to try XFS on a non-SYM2 box and see what
> happens? That way we might have a clue whether sym2's at fault or
> something else...
> 
> My 2 cents in the morning ;)
> 
> Thibaut VARENE
> PA/Linux ESIEE Team
> http://www.pateam.org/
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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On Fri February 18 2005 20:28, Grant Grundler wrote:
> On Fri, Feb 18, 2005 at 10:28:26AM +0100, Thibaut VARENE wrote:
> > > The only difference in the .config was sym2 driver IOMAPPED.
> > > I had it enabled (using IO Port space) and now disable it
> > > since I really want MMIO space. I'm very skeptical this is
> > > related to the problem.
> > 
> > Hmmm.
> > Back in the early days of 2.5, i recall issues with SYM2 in MMIO mode,
> > so that it only worked in PIO mode (I think i had posted something on
> > this m-l about that). At that time i was using ext3 for that matter.
> > 
> > OTOH, XFS relies a lot on memory and cache quality. I don't know how
> > MMIO would interfere with that, but I suspect that if enabling MMIO
> > has the side effect of messing with that somehow, it's very likely XFS
> > won't like it at all. Just a random thought though.
> 
> *sigh* Using IO Port space works. Either there is a bug in the Sym2
> driver (not posting writes when it needs to) or the lower cost of
> the MMIO writes is changing the timing enough to expose bugs
> in other subsystems.
> 
A note,
There are recent messages on the powerPC list about the irq routing
and balancing changes in generic that cause the Sym2 driver to fail.

In my case, it is the tulip driver.
I have eliminated compiler, unip/smp, work loads, make -j levels;
and feel certain I have a solid 2.6.8 on this machine.
No problems with the IP network stack collapsing; produces good
executable of OpenOffice at "make -j3".

Next - binary search between 2.6.11 and 2.6.8 - find where things
went bad.  If I find anything that might also effect pa-risc, I'll post.

Note: The changes to irq routing and balancing might also be 
behind the high latency in servicing the timer interrupt that Willy
found on some pa-risc machines.

I would suggest sticking with: 'noudev nodevfs pci=routeirq'
command line options until more is known.
(They should make system work like pre-2.6.9)

Mike
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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] NCR_700 problems on 715/64 with 2.6.11-rc4-pa1
Date: Sat, 19 Feb 2005 12:34:30 +0100
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I get random messages from the 53c700 scsi driver (see below). 
Any ideas ?
Helge

System LOG:

Linux version 2.6.11-rc4-pa1 (root@p100) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #170 Sat Feb 19 12:04:12 CET 2005
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 000060a0 00000481 00000000 00000000 773c7d2c 00000000 00000004 00000072 00000072
vers  0000000c
model 9000/715
Total Memory: 160 Mb
Built 1 zonelists                                                                                                                         
.....
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2
scsi0 : LASI SCSI 53c700
  Vendor: QUANTUM   Model: FIREBALL_TM3200S  Rev: 300X
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:6: Beginning Domain Validation
scsi0: (6:0) Enabling Tag Command Queuing
scsi0: (6:0) Asynchronous
 target0:0:6: Domain Validation skipping write tests
scsi0: (6:0) Synchronous at offset 8, period 100ns
 target0:0:6: Ending Domain Validation
st: Version 20041025, fixed bufsize 32768, s/g segs 256
SCSI device sda: 6281856 512-byte hdwr sectors (3216 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 6281856 512-byte hdwr sectors (3216 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 6, lun 0,  type 0                                                                       
...



in dmesg (at random times):
_raw_foo() called with bad address 0xf0106121
Backtrace:
 [<10104ce4>] __raw_bad_addr+0x64/0x70
 [<1028edd8>] NCR_700_start_command+0x3e8/0x78c
 [<10290684>] NCR_700_queuecommand+0x2fc/0x440
 [<1026cf30>] scsi_dispatch_cmd+0x164/0x238
 [<10272ba4>] scsi_request_fn+0x18c/0x354
 [<10250454>] __generic_unplug_device+0x4c/0x54
 [<10250470>] generic_unplug_device+0x14/0x24
 [<102504b0>] blk_backing_dev_unplug+0x30/0x38
 [<10169038>] sync_buffer+0x54/0x58
 [<10103708>] __wait_on_bit+0xd4/0xe0
 [<101037c4>] out_of_line_wait_on_bit+0xb0/0xcc
 [<101ba2a4>] journal_commit_transaction+0xe68/0x1028
 [<101bc7ac>] kjournald+0xc0/0x240
 [<1010bc5c>] ret_from_kernel_thread+0x1c/0x24


and:
__raw_foo() called with bad address 0xf0106122
Backtrace:
 [<10104ce4>] __raw_bad_addr+0x64/0x70
 [<1028f200>] NCR_700_intr+0x84/0x120c
 [<10142cfc>] handle_IRQ_event+0x50/0xa4
 [<10142e78>] __do_IRQ+0x128/0x174
 [<102163dc>] gsc_asic_intr+0xac/0xc8
 [<10142cfc>] handle_IRQ_event+0x50/0xa4
 [<10142e78>] __do_IRQ+0x128/0x174
 [<101072a0>] do_cpu_irq_mask+0x7c/0xd8
 [<1010c068>] intr_return+0x0/0x14
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Subject: Re: [parisc-linux] NCR_700 problems on 715/64 with 2.6.11-rc4-pa1
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On Sat February 19 2005 05:34, Helge Deller wrote:
> I get random messages from the 53c700 scsi driver (see below). 
> Any ideas ?
> Helge
> 
Looks like more udev/irq balance/irq routing problems,
see concurrent thread "BUG 2.6.11-rc4..."

try: 'noudev pci=routeirq' options on the command line
to change behavior in generic code.

Mike

> System LOG:
> 
> Linux version 2.6.11-rc4-pa1 (root@p100) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #170 Sat Feb 19 12:04:12 CET 2005
> FP[0] enabled: Rev 1 Model 13
> The 32-bit Kernel has started...
> Determining PDC firmware type: Snake.
> model 000060a0 00000481 00000000 00000000 773c7d2c 00000000 00000004 00000072 00000072
> vers  0000000c
> model 9000/715
> Total Memory: 160 Mb
> Built 1 zonelists                                                                                                                         
> .....
> 53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
> scsi0: 53c710 rev 2
> scsi0 : LASI SCSI 53c700
>   Vendor: QUANTUM   Model: FIREBALL_TM3200S  Rev: 300X
>   Type:   Direct-Access                      ANSI SCSI revision: 02
>  target0:0:6: Beginning Domain Validation
> scsi0: (6:0) Enabling Tag Command Queuing
> scsi0: (6:0) Asynchronous
>  target0:0:6: Domain Validation skipping write tests
> scsi0: (6:0) Synchronous at offset 8, period 100ns
>  target0:0:6: Ending Domain Validation
> st: Version 20041025, fixed bufsize 32768, s/g segs 256
> SCSI device sda: 6281856 512-byte hdwr sectors (3216 MB)
> SCSI device sda: drive cache: write back
> SCSI device sda: 6281856 512-byte hdwr sectors (3216 MB)
> SCSI device sda: drive cache: write back
>  sda: sda1 sda2 sda3 sda4
> Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
> Attached scsi generic sg0 at scsi0, channel 0, id 6, lun 0,  type 0                                                                       
> ...
> 
> 
> 
> in dmesg (at random times):
> _raw_foo() called with bad address 0xf0106121
> Backtrace:
>  [<10104ce4>] __raw_bad_addr+0x64/0x70
>  [<1028edd8>] NCR_700_start_command+0x3e8/0x78c
>  [<10290684>] NCR_700_queuecommand+0x2fc/0x440
>  [<1026cf30>] scsi_dispatch_cmd+0x164/0x238
>  [<10272ba4>] scsi_request_fn+0x18c/0x354
>  [<10250454>] __generic_unplug_device+0x4c/0x54
>  [<10250470>] generic_unplug_device+0x14/0x24
>  [<102504b0>] blk_backing_dev_unplug+0x30/0x38
>  [<10169038>] sync_buffer+0x54/0x58
>  [<10103708>] __wait_on_bit+0xd4/0xe0
>  [<101037c4>] out_of_line_wait_on_bit+0xb0/0xcc
>  [<101ba2a4>] journal_commit_transaction+0xe68/0x1028
>  [<101bc7ac>] kjournald+0xc0/0x240
>  [<1010bc5c>] ret_from_kernel_thread+0x1c/0x24
> 
> 
> and:
> __raw_foo() called with bad address 0xf0106122
> Backtrace:
>  [<10104ce4>] __raw_bad_addr+0x64/0x70
>  [<1028f200>] NCR_700_intr+0x84/0x120c
>  [<10142cfc>] handle_IRQ_event+0x50/0xa4
>  [<10142e78>] __do_IRQ+0x128/0x174
>  [<102163dc>] gsc_asic_intr+0xac/0xc8
>  [<10142cfc>] handle_IRQ_event+0x50/0xa4
>  [<10142e78>] __do_IRQ+0x128/0x174
>  [<101072a0>] do_cpu_irq_mask+0x7c/0xd8
>  [<1010c068>] intr_return+0x0/0x14
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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Subject: Re: [parisc-linux] NCR_700 problems on 715/64 with 2.6.11-rc4-pa1
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Hi Michael,

On Saturday 19 February 2005 15:00, Michael S. Zick wrote:
> On Sat February 19 2005 05:34, Helge Deller wrote:
> > I get random messages from the 53c700 scsi driver (see below). 
> > Any ideas ?
> > Helge
> > 
> Looks like more udev/irq balance/irq routing problems,
> see concurrent thread "BUG 2.6.11-rc4..."
> 
> try: 'noudev pci=routeirq' options on the command line
> to change behavior in generic code.

I will try, but I'm not sure that this is the cause.
Looks to me more like a missing ioremap() call.

Even the sti framebuffer does not work since weeks - I think it's due to ioremap() as well.

Helge
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On Sat February 19 2005 08:59, Helge Deller wrote:
> Hi Michael,
> 
> On Saturday 19 February 2005 15:00, Michael S. Zick wrote:
> > On Sat February 19 2005 05:34, Helge Deller wrote:
> > > I get random messages from the 53c700 scsi driver (see below). 
> > > Any ideas ?
> > > Helge
> > > 
> > Looks like more udev/irq balance/irq routing problems,
> > see concurrent thread "BUG 2.6.11-rc4..."
> > 
> > try: 'noudev pci=routeirq' options on the command line
> > to change behavior in generic code.
> 
> I will try, but I'm not sure that this is the cause.
> Looks to me more like a missing ioremap() call.
> 
> Even the sti framebuffer does not work since weeks - I think it's due to ioremap() as well.
> 
With 2.6.11 the device drivers are responsible for registering
their irq handling, not the bus driver...
Could that also be the cause for your missing ioremap() calls?

The above is a general description - perhaps not exact.
I am afraid I will learn more than I ever wanted to know about
this change before I get this *&%^&  tulip driver working under 2.6.11

Mike
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] NCR_700 problems on 715/64 with 2.6.11-rc4-pa1
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On Sat, Feb 19, 2005 at 12:34:30PM +0100, Helge Deller wrote:
> I get random messages from the 53c700 scsi driver (see below). 
> Any ideas ?
> _raw_foo() called with bad address 0xf0106121
> Backtrace:
>  [<10104ce4>] __raw_bad_addr+0x64/0x70
>  [<1028edd8>] NCR_700_start_command+0x3e8/0x78c

Yup.  This is a missing ioremap() in the 53c700 driver.  I'll have a
quick look, see if it's easily fixable (should be).  If the dmesg noise
annoys you, you can just turn off CONFIG_DEBUG_IOREMAP, but thanks for
reporting it -- it's an important step towards turning on HPPA_IOREMAP ...

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain



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Subject: Re: [parisc-linux] NCR_700 problems on 715/64 with 2.6.11-rc4-pa1
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On Sat, Feb 19, 2005 at 04:40:07PM +0000, Matthew Wilcox wrote:
> On Sat, Feb 19, 2005 at 12:34:30PM +0100, Helge Deller wrote:
> > I get random messages from the 53c700 scsi driver (see below). 
> > Any ideas ?
> > _raw_foo() called with bad address 0xf0106121
> > Backtrace:
> >  [<10104ce4>] __raw_bad_addr+0x64/0x70
> >  [<1028edd8>] NCR_700_start_command+0x3e8/0x78c
> 
> Yup.  This is a missing ioremap() in the 53c700 driver.  I'll have a
> quick look, see if it's easily fixable (should be).  If the dmesg noise
> annoys you, you can just turn off CONFIG_DEBUG_IOREMAP, but thanks for
> reporting it -- it's an important step towards turning on HPPA_IOREMAP ...

Here's the patch I'm compiling now ...

--- drivers/scsi/lasi700.c      10 Dec 2004 20:46:33 -0000      1.10
+++ drivers/scsi/lasi700.c      19 Feb 2005 16:47:11 -0000
@@ -112,7 +112,7 @@ lasi700_probe(struct parisc_device *dev)
 
        hostdata->dev = &dev->dev;
        dma_set_mask(&dev->dev, 0xffffffffUL);
-       hostdata->base = base;
+       hostdata->base = ioremap(base, 0x100);
        hostdata->differential = 0;
 
        if (dev->id.sversion == LASI_700_SVERSION) {
@@ -138,6 +138,7 @@ lasi700_probe(struct parisc_device *dev)
        return 0;
 
  out_kfree:
+       iounmap(hostdata->base);
        kfree(hostdata);
        return -ENODEV;
 }
@@ -152,6 +153,7 @@ lasi700_driver_remove(struct parisc_devi
        scsi_remove_host(host);
        NCR_700_release(host);
        free_irq(host->irq, host);
+       iounmap(hostdata->base);
        kfree(hostdata);
 
        return 0;


-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain



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Subject: Re: [parisc-linux] NCR_700 problems on 715/64 with 2.6.11-rc4-pa1
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Xref: news.gmane.org gmane.linux.ports.parisc:22364

Hi all,

Here isthe lot of messages I got when stressing sdc on narrow se connection of my c110 (this disk is an older model then mentioned 
in previous test).
using following stress test just being:
# tar cslp linux-2.6.11-rc4-pa1-050219 | tar -C /chroot/Develop -xslp
# tar -cslpf /chroot/Develop/linux-2.6.11-rc4-pa1-050219.tar linux-2.6.11-rc4-pa1-050219
# tar -cslpf /chroot/Develop/linux-2.6.11-rc4-pa1-050219.tar2  linux-2.6.11-rc4-pa1-050219
nearly simultanious in 3 different shells ;-)

I got lot of messages as follow:
scsi1: (4:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG N
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff48778, dsp 001d8]
  failing command because of reset, slot 2ff48520, cmnd 2ff081c0
  failing command because of reset, slot 2ff4864c, cmnd 2ff08a00
  failing command because of reset, slot 2ff48778, cmnd 2ff08060
  failing command because of reset, slot 2ff488a4, cmnd 2ff08320
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x3: 03 00 00 00 60 00
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff48778, dsp 001d8]
  failing command because of reset, slot 2ff48520, cmnd 2ff08320
  failing command because of reset, slot 2ff4864c, cmnd 2ff088a0
  failing command because of reset, slot 2ff48778, cmnd 2ff08060
  failing command because of reset, slot 2ff488a4, cmnd 2ff081c0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff4864c, dsp 001d8]
  failing command because of reset, slot 2ff4864c, cmnd 2ff08060
  failing command because of reset, slot 2ff48778, cmnd 2ff088a0
  failing command because of reset, slot 2ff488a4, cmnd 2ff08320
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff48778, dsp 001d8]
  failing command because of reset, slot 2ff48778, cmnd 2ff08060
  failing command because of reset, slot 2ff488a4, cmnd 2ff081c0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff4864c, dsp 001d8]
  failing command because of reset, slot 2ff4864c, cmnd 2ff08060
  failing command because of reset, slot 2ff48778, cmnd 2ff08320
  failing command because of reset, slot 2ff488a4, cmnd 2ff088a0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff48778, dsp 001d8]
  failing command because of reset, slot 2ff48778, cmnd 2ff08060
  failing command because of reset, slot 2ff488a4, cmnd 2ff081c0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff4864c, dsp 001d8]
  failing command because of reset, slot 2ff4864c, cmnd 2ff08060
  failing command because of reset, slot 2ff48778, cmnd 2ff088a0
  failing command because of reset, slot 2ff488a4, cmnd 2ff08320
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff48778, dsp 001d8]
  failing command because of reset, slot 2ff48778, cmnd 2ff08060
  failing command because of reset, slot 2ff488a4, cmnd 2ff081c0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff4864c, dsp 001d8]
  failing command because of reset, slot 2ff4864c, cmnd 2ff08060
  failing command because of reset, slot 2ff48778, cmnd 2ff08320
  failing command because of reset, slot 2ff488a4, cmnd 2ff088a0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff48778, dsp 001d8]
  failing command because of reset, slot 2ff48778, cmnd 2ff08060
  failing command because of reset, slot 2ff488a4, cmnd 2ff081c0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff4864c, dsp 001d8]
  failing command because of reset, slot 2ff4864c, cmnd 2ff08060
  failing command because of reset, slot 2ff48778, cmnd 2ff088a0
  failing command because of reset, slot 2ff488a4, cmnd 2ff08320
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff48778, dsp 001d8]
  failing command because of reset, slot 2ff4864c, cmnd 2ff088a0
  failing command because of reset, slot 2ff48778, cmnd 2ff08060
  failing command because of reset, slot 2ff488a4, cmnd 2ff081c0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff4864c, dsp 001d8]
  failing command because of reset, slot 2ff4864c, cmnd 2ff08060
  failing command because of reset, slot 2ff48778, cmnd 2ff088a0
  failing command because of reset, slot 2ff488a4, cmnd 2ff08320
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff48778, dsp 001d8]
  failing command because of reset, slot 2ff48778, cmnd 2ff08060
  failing command because of reset, slot 2ff488a4, cmnd 2ff081c0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff4864c, dsp 001d8]
  failing command because of reset, slot 2ff4864c, cmnd 2ff08060
  failing command because of reset, slot 2ff48778, cmnd 2ff08320
  failing command because of reset, slot 2ff488a4, cmnd 2ff088a0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff48778, dsp 001d8]
  failing command because of reset, slot 2ff48778, cmnd 2ff08060
  failing command because of reset, slot 2ff488a4, cmnd 2ff081c0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff4864c, dsp 001d8]
  failing command because of reset, slot 2ff4864c, cmnd 2ff08060
  failing command because of reset, slot 2ff48778, cmnd 2ff088a0
  failing command because of reset, slot 2ff488a4, cmnd 2ff08320
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff48778, dsp 001d8]
  failing command because of reset, slot 2ff48778, cmnd 2ff08060
  failing command because of reset, slot 2ff488a4, cmnd 2ff081c0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff4864c, dsp 001d8]
  failing command because of reset, slot 2ff48520, cmnd 2ff081c0
  failing command because of reset, slot 2ff4864c, cmnd 2ff08060
  failing command because of reset, slot 2ff48778, cmnd 2ff08320
  failing command because of reset, slot 2ff488a4, cmnd 2ff088a0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff48778, dsp 001d8]
  failing command because of reset, slot 2ff48778, cmnd 2ff08060
  failing command because of reset, slot 2ff488a4, cmnd 2ff081c0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff4864c, dsp 001d8]
  failing command because of reset, slot 2ff4864c, cmnd 2ff08060
  failing command because of reset, slot 2ff48778, cmnd 2ff088a0
  failing command because of reset, slot 2ff488a4, cmnd 2ff08320
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff48778, dsp 001d8]
  failing command because of reset, slot 2ff48778, cmnd 2ff08060
  failing command because of reset, slot 2ff488a4, cmnd 2ff081c0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff4864c, dsp 001d8]
  failing command because of reset, slot 2ff4864c, cmnd 2ff08060
  failing command because of reset, slot 2ff48778, cmnd 2ff08320
  failing command because of reset, slot 2ff488a4, cmnd 2ff088a0
scsi1: (4:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
          len = 6, cmd =scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f af 46
scsi1: Bus Reset detected, executing command 2ff08060, slot 2ff48778, dsp 001d8]
  failing command because of reset, slot 2ff48778, cmnd 2ff08060
  failing command because of reset, slot 2ff488a4, cmnd 2ff081c0
scsi1 (4:0) broken device is looping in contingent allegiance: ignoring
scsi1 (4:0) New error handler wants to abort command
         scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f b7 46 00 04 00 00
scsi1 (4:0) New error handler wants to abort command
         scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f b3 46 00 04 00 00
scsi1 (4:0) New error handler wants to abort command
         scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f bc d6 00 04 00 00
scsi1 (4:0) New error handler wants device reset
         scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f b7 46 00 04 00 00
scsi1 (4:0) New error handler wants BUS reset, cmd 2ff081c0
         scsi1 : destination target 4, lun 0
         command: cdb[0]=0x2a: 2a 00 00 5f b7 46 00 04 00 00
scsi1: Bus Reset detected, executing command 2ff08320, slot 2ff488a4, dsp 001d8]
  failing command because of reset, slot 2ff48778, cmnd 2ff08480
  failing command because of reset, slot 2ff488a4, cmnd 2ff08320
end_request: I/O error, dev sdc, sector 6270790
Buffer I/O error on device sdc9, logical block 144776
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 144777
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 144778
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 144779
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 144780
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 144781
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 144782
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 144783
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 144784
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 144785
lost page write due to I/O error on sdc9
  target1:0:4: Beginning Domain Validation
scsi1: (4:0) Asynchronous
  target1:0:4: Domain Validation skipping write tests
scsi1: (4:0) Synchronous at offset 8, period 100ns
  target1:0:4: Ending Domain Validation
end_request: I/O error, dev sdc, sector 6624510
printk: 118 messages suppressed.
Buffer I/O error on device sdc9, logical block 188991
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 188992
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 188993
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 188994
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 188995
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 188996
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 188997
lost page write due to I/O error on sdc9
end_request: I/O error, dev sdc, sector 7236926
printk: 121 messages suppressed.
Buffer I/O error on device sdc9, logical block 265543
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 265544
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 265545
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 265546
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 265547
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 265548
lost page write due to I/O error on sdc9

> 
> 
> Here's the patch I'm compiling now ...
> 
> --- drivers/scsi/lasi700.c      10 Dec 2004 20:46:33 -0000      1.10
> +++ drivers/scsi/lasi700.c      19 Feb 2005 16:47:11 -0000
> @@ -112,7 +112,7 @@ lasi700_probe(struct parisc_device *dev)
>  
>         hostdata->dev = &dev->dev;
>         dma_set_mask(&dev->dev, 0xffffffffUL);
> -       hostdata->base = base;
> +       hostdata->base = ioremap(base, 0x100);
>         hostdata->differential = 0;
>  
>         if (dev->id.sversion == LASI_700_SVERSION) {
> @@ -138,6 +138,7 @@ lasi700_probe(struct parisc_device *dev)
>         return 0;
>  
>   out_kfree:
> +       iounmap(hostdata->base);
>         kfree(hostdata);
>         return -ENODEV;
>  }
> @@ -152,6 +153,7 @@ lasi700_driver_remove(struct parisc_devi
>         scsi_remove_host(host);
>         NCR_700_release(host);
>         free_irq(host->irq, host);
> +       iounmap(hostdata->base);
>         kfree(hostdata);
>  
>         return 0;
> 
This patch applied I got only:
end_request: I/O error, dev sdc, sector 5303534
Buffer I/O error on device sdc9, logical block 23869
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 23870
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 23871
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 23872
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 23873
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 23874
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 23875
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 23876
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 23877
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 23878
lost page write due to I/O error on sdc9
scsi1: (4:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
scsi1: Bus Reset detected, executing command 2ff08320, slot 2ff4864c, dsp 001d81e8[01e8]
  failing command because of reset, slot 2ff48520, cmnd 2ff08740
  failing command because of reset, slot 2ff4864c, cmnd 2ff08320
  failing command because of reset, slot 2ff48778, cmnd 2ff088a0
  failing command because of reset, slot 2ff488a4, cmnd 23af1e80
end_request: I/O error, dev sdc, sector 6147910
printk: 118 messages suppressed.
Buffer I/O error on device sdc9, logical block 129416
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 129417
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 129418
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 129419
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 129420
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 129421
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 129422
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 129423
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 129424
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 129425
lost page write due to I/O error on sdc9

That said it seems to be a c110 pb because as reported in 
<http://lists.parisc-linux.org/pipermail/parisc-linux/2005-February/025853.html>

The same test on b180 with same 53c710 driver doesn't encounter any pb :-)

I can so eliminate disk pb ;-)
But how may I check if it's hw pb in the 53c710 ctrlr? (hp ode expert tools are only for hp engineer)

hth,
	joel
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Subject: Re: [parisc-linux] BUG 2.6.11-rc4-pa1 XFS data page fault
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On Tue, Feb 15, 2005 at 11:55:39PM -0700, Grant Grundler wrote:
> Running 2.6.11-rc4-pa0-plus (equivalent to -pa1) on a500-65 (riot).
> xfs ran spew for 48h but panic'd when I did a "cvs up -A"
> to the CVS source tree on the same file system.

XFS behaves better with sym2+MMIO on j6000 running a 64-bit SMP kernel.
I was able to run spew several hours with no problems.
This is without the patch that Joel pointed out from the -mm tree.

This suggests there is a problem with Astro/Elroy programming
where "Sprockets" firmware (for Astro based workstations) does
something different than PAT PDC firmware on a500.
I'm investigating.


However, did see one "WARN_ON" when I rsync (/home to /home2):
root@gggj6k:/home# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda3              1783984   1522420    170940  90% /
tmpfs                  4110708         0   4110708   0% /dev/shm
/dev/sda4             15439312  13086812   1568220  90% /home
/dev/sdb3             17019904   5155384  11864520  31% /mnt
/dev/sdb4             17773568  12486340   5287228  71% /home2

root@gggj6k:/home# lsscsi
[1:0:5:0]    disk    SEAGATE  ST318203LC       0001  /dev/sda
[1:0:6:0]    disk    FUJITSU  MAJ3364MC        HP12  /dev/sdb

The rsync completed but one error showed up 4 times on the console
during the second half (about) of the rsync:

Filesystem "sdb4": XFS internal error xfs_btree_check_sblock at line 342 of file fs/xfs/xfs_btree.c.  Caller 0x00000000102f1b84
Backtrace:
 [<00000000101145e0>] dump_stack+0x18/0x28
 [<00000000102eceac>] xfs_error_report+0x64/0x70
 [<00000000102d7718>] xfs_btree_check_sblock+0x78/0xf8
 [<00000000102f1b84>] xfs_inobt_lookup+0x144/0x3a0
 [<00000000102f3514>] xfs_inobt_lookup_le+0x24/0x30
 [<00000000102f08f0>] xfs_dialloc+0xe90/0x12e0
 [<00000000102f6638>] xfs_ialloc+0x70/0x4e0
 [<0000000010310a10>] xfs_dir_ialloc+0xb8/0x3e8
 [<0000000010316d30>] xfs_create+0x2f0/0x810
 [<0000000010326140>] linvfs_mknod+0x1e0/0x298
 [<000000001032620c>] linvfs_create+0x14/0x20
 [<00000000101d3c04>] vfs_create+0xbc/0xf8
 [<00000000101d4a30>] open_namei+0xb58/0xc10
 [<00000000101b5b14>] filp_open+0x44/0x98
 [<00000000101b5f98>] sys_open+0x98/0x110
 [<0000000010107fac>] syscall_exit+0x0/0x14


Perhaps this is fixed in the patches; I haven't looked.

hth,
grant
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Subject: Re: [parisc-linux] NCR_700 problems on 715/64 with 2.6.11-rc4-pa1
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Hi Willi,

Thanks!
This patch worked. I'll commit it now...

Helge

On Saturday 19 February 2005 17:53, Matthew Wilcox wrote:
> On Sat, Feb 19, 2005 at 04:40:07PM +0000, Matthew Wilcox wrote:
> > On Sat, Feb 19, 2005 at 12:34:30PM +0100, Helge Deller wrote:
> > > I get random messages from the 53c700 scsi driver (see below). 
> > > Any ideas ?
> > > _raw_foo() called with bad address 0xf0106121
> > > Backtrace:
> > >  [<10104ce4>] __raw_bad_addr+0x64/0x70
> > >  [<1028edd8>] NCR_700_start_command+0x3e8/0x78c
> > 
> > Yup.  This is a missing ioremap() in the 53c700 driver.  I'll have a
> > quick look, see if it's easily fixable (should be).  If the dmesg noise
> > annoys you, you can just turn off CONFIG_DEBUG_IOREMAP, but thanks for
> > reporting it -- it's an important step towards turning on HPPA_IOREMAP ...
> 
> Here's the patch I'm compiling now ...
> 
> --- drivers/scsi/lasi700.c      10 Dec 2004 20:46:33 -0000      1.10
> +++ drivers/scsi/lasi700.c      19 Feb 2005 16:47:11 -0000
> @@ -112,7 +112,7 @@ lasi700_probe(struct parisc_device *dev)
>  
>         hostdata->dev = &dev->dev;
>         dma_set_mask(&dev->dev, 0xffffffffUL);
> -       hostdata->base = base;
> +       hostdata->base = ioremap(base, 0x100);
>         hostdata->differential = 0;
>  
>         if (dev->id.sversion == LASI_700_SVERSION) {
> @@ -138,6 +138,7 @@ lasi700_probe(struct parisc_device *dev)
>         return 0;
>  
>   out_kfree:
> +       iounmap(hostdata->base);
>         kfree(hostdata);
>         return -ENODEV;
>  }
> @@ -152,6 +153,7 @@ lasi700_driver_remove(struct parisc_devi
>         scsi_remove_host(host);
>         NCR_700_release(host);
>         free_irq(host->irq, host);
> +       iounmap(hostdata->base);
>         kfree(hostdata);
>  
>         return 0;
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On Fri, Jan 07, 2005 at 01:51:43AM -0800, Randolph Chung wrote:
> Grant, do you have any results of a somewhat more macrobenchmark that
> shows what happens with this patch installed?

I don't. I wanted to run the ones that you suggested but just
didn't have time. Before this gets totally lost, here are the results
I did collect for 64-bit kernel using ldd/std in copy_user_page_asm.
Can someone collect a comparable set using the original copy_user_page_asm?

This is on J6700 (750Mhz PA8700) w/4GB RAM.

>  e.g. what does it do to "dd if=/dev/zero of=foo bs=1k count=500000"?

Linux gggj6k 2.6.10-pa6-64SMP #1 SMP Thu Jan 6 22:18:36 PST 2005 parisc64 GNU/Linux

root@gggj6k:/home# time dd if=/dev/zero of=foo bs=1k count=500000

"dd" time	"dd" B/s	"time" real	user		sys
17.018413	30085062	0m17.034s	0m0.136s	0m11.153s
15.877587	32246713	0m21.932s	0m0.145s	0m11.866s
11.948184	42851700	0m12.642s	0m0.149s	0m11.785s
14.944728	34259573	0m27.936s	0m0.129s	0m11.861s
12.329126	41527680	0m13.035s	0m0.156s	0m11.896s
11.369272	45033666	0m22.073s	0m0.134s	0m11.605s


> what does it do to a kernel compile?

2.6.10-rc3-pa8 kernel:
real    47m42.656s
user    20m15.723s
sys     66m52.259s


> what does it do to a bonnie run?

Linux gggj6k 2.6.10-pa6-64SMP #1 SMP Thu Jan 6 22:18:36 PST 2005 parisc64 GNU/Linux

root@gggj6k:/mnt# bonnie -u grundler -f -x 3 -m 64SMP -d /mnt
Using uid:1001, gid:1001.
name,file_size,putc,putc_cpu,put_block,put_block_cpu,rewrite,rewrite_cpu,getc,getc_cpu,get_block,get_block_cpu,seeks,seeks_cpu,num_files,seq_create,seq_create_cpu,seq_stat,seq_stat_cpu,seq_del,seq_del_cpu,ran_create,ran_create_cpu,ran_stat,ran_stat_cpu,ran_del,ran_del_cpu
Writing intelligently...done
Rewriting...done
Reading intelligently...done
start 'em...done...done...done...
Create files in sequential order...done.
Stat files in sequential order...done.
Delete files in sequential order...done.
Create files in random order...done.
Stat files in random order...done.
Delete files in random order...done.
64SMP,16G,,,57333,25,15918,12,,,25829,10,166.8,1,16,2368,98,+++++,+++,+++++,+++,2589,99,+++++,+++,7093,99
...
64SMP,16G,,,58014,26,15895,12,,,25461,10,181.7,1,16,2416,98,+++++,+++,+++++,+++,2598,99,+++++,+++,7361,99
...
64SMP,16G,,,57416,25,16201,13,,,25841,10,186.1,1,16,2452,96,+++++,+++,+++++,+++,2621,99,+++++,+++,7544,100



And one more test that I'm not sure is relevant:

	time sgp_dd if=/dev/sda of=/dev/sdc bpt=16k count=17781520

2.6.10-rc3-pa8 kernel:
real    15m13.011s
user    0m0.042s
sys     4m6.301s


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Subject: Re: [parisc-linux] BUG 2.6.11-rc4-pa1 XFS data page fault
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On Sat, Feb 19, 2005 at 03:27:23PM -0700, Grant Grundler wrote:
> This suggests there is a problem with Astro/Elroy programming
> where "Sprockets" firmware (for Astro based workstations) does
> something different than PAT PDC firmware on a500.

This was not the only issue, but the first one.
Two more bits in the IOC_CTRL register were getting
set on j6k (vs A500):
	D4	Disable 4-byte coalescing. Apperently could
		result in 12 byte transfers (4 byte-lanes not
		enabled on the second 8 byte transaction)
		that "some devices don't tolerate".
		Documentation doesn't list these devices.

	DD	Disable Distributed LMMIO coalescing.
		Disables coalescing for all PIO MMIO transactions
		to addresses below distributed LMMIO ranges.
		Directed LMMIO and other GMMIO ranges
		may still coalesce (e.g. graphics buffers usually
		get a directed range).

Spew ran for an hour and managed to push 80+ GB
of data to 6 disks. I'll commit this change shortly.

Then I got ambitious and ran "make clean" and XFS panic'd.
I expect this is a different problem.
Same one I've seen before:

[ no backtrace :^( ]

Kernel Fault: Code=26 regs=000000006cd40c10 (Addr=00000000000000c8)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000011001111111100001111 Not tainted
r00-03  0000000000000000 000000001026d1d0 000000000028afa8 0000000000000000
r04-07  0000000000243000 0000000000000000 0000000000000000 00000000fff00800
r08-11  00000000156b60b8 0000000000000000 0000000000000008 0000000000000000
r12-15  0000000000000008 0000000000000000 0000000000000000 000000006cd40768
r16-19  0008000000000001 0000000000000000 0000000000000022 0000000000000000
r20-23  0000000000000000 0000000000000000 00000000fdfafbf8 0000000000000000
r24-27  0000000000000000 0000000000000000 00000000fdfafb38 00000000105424c0
r28-31  00000000fdfafb38 000000006cd40c70 000000006cd40c10 00000000a0000000
sr0-3   000000000044d000 0000000000000000 0000000000000000 000000000044f000
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000000028afc0 000000000028afdc


Press Q/q to quit, Enter to continue: 
 IIR: 50d30190    ISR: 0000000000000000  IOR: 00000000000000c8
 CPU:        0   CR30: 000000006cd40000 CR31: 000000001050c000
 ORIG_R28: 00000000fda4fa80
 IAOQ[0]: xfs_btree_init_cursor+0x70/0x1b8 [xfs]
 IAOQ[1]: xfs_btree_init_cursor+0x8c/0x1b8 [xfs]
 RP(r2): xfs_btree_init_cursor+0x58/0x1b8 [xfs]
Kernel panic - not syncing: Kernel Fault
 

hth,
grant
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----- Forwarded message from Roel Teuwen <Roel.Teuwen@gmail.com> -----

From: Roel Teuwen <Roel.Teuwen@gmail.com>
Subject: Bug#296274: kernel-image-2.6.8-2-32: forward bug - segmentation fault : kernel cause ?
Message-Id: <200502211334.OAA15895@ruby.bro.cpqcorp.net>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Date: Mon, 21 Feb 2005 14:34:24 +0100
X-Mailer: reportbug 3.8

Package: kernel-image-2.6.8-2-32
Version: 2.6.8-6
Severity: grave
Justification: renders package unusable


After filing bugreport #294167 (apt-listbugs: segmentation fault on
hppa), it was closed by the developer, stating the cause is the kernel
because of kernel messages in dmesg.

It was my understanding that these messages were informational and
indicative of a programming flaw in the application, but complying with
the request anyway.

Thanks for looking into this and providing information to the
apt-listbugs maintainer if needed.

Best regards,

Roel

dmesg kernel messages were :

do_page_fault() pid=1556 command='apt-listbugs' type=7
address=0x4027d3af
vm_start = 0x4022a000, vm_end = 0x40312000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
     PSW: 00000000000001001111111100001111 Not tainted
     r00-03  00000000 fffff000 4027d3a3 4033b458
     r04-07  40325e58 4033b538 40321d8c 410b6590
     r08-11  40338e24 00989680 00000001 0015430c
     r12-15  00154308 00000000 403246da 00000611
     r16-19  407e9bf0 00000000 00000000 40325e58
     r20-23  00000000 00000000 410b6000 00000001
     r24-27  00000001 410b6590 00000000 00020b9c
     r28-31  00000000 00000168 410b6600 407d7edb
     sr0-3   00000000 00000000 00000000 00000028
     sr4-7   00000028 00000028 00000028 00000028

     IASQ: 00000028 00000028 IAOQ: 4027d3af 4027d3b3
     IIR: 0cca1280    ISR: 00000028  IOR: 40321d8c
     CPU:        0   CR30: 144ec000 CR31: 103d0000
     ORIG_R28: 00000000
     IAOQ[0]: 0x4027d3af
     IAOQ[1]: 0x4027d3b3
     RP(r2): 0x4027d3a3

apt-listbugs (pid 1556): Protection id trap (code 27)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
     PSW: 00000000000001001111111100001111 Not tainted
     r00-03  00000000 1043c010 10113c00 160a16c4
     r04-07  410b6600 1645f320 410b6624 1645f51c
     r08-11  00000000 00000000 160a16c4 0000000b
     r12-15  00154308 00000000 403246da 00000611
     r16-19  1645f320 00000000 00000000 0000000b
     r20-23  00000001 00030001 410b6624 144ec088
     r24-27  144ec088 144ec088 410b6624 10347010
     r28-31  0000000b 00000000 144ec340 101f764c
     sr0-3   00000000 00000000 00000000 00000028
     sr4-7   00000000 00000000 00000000 00000000

     IASQ: 00000000 00000000 IAOQ: 101364d4 101364d8
     IIR: 0f53d280    ISR: 00000028  IOR: 410b6624
     CPU:        0   CR30: 144ec000 CR31: 103d0000
     ORIG_R28: 103d0000
     IAOQ[0]: copy_siginfo_to_user+0x468/0x490
     IAOQ[1]: copy_siginfo_to_user+0x46c/0x490
     RP(r2): setup_rt_frame+0x98/0x42c

-- System Information:
Debian Release: 3.1
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: hppa (parisc)
Kernel: Linux 2.6.8-2-32
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages kernel-image-2.6.8-2-32 depends on:
ii  coreutils [fileutils]         5.2.1-2    The GNU core utilities
ii  initrd-tools                  0.1.77     tools to create initrd image for p
ii  module-init-tools             3.2-pre1-2 tools for managing Linux kernel mo
ii  palo                          1.6        Linux boot loader for parisc/hppa

-- no debconf information

----- End forwarded message -----
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On Sat, Feb 19, 2005 at 04:17:59AM -0600, Michael S. Zick wrote:
> I would suggest sticking with: 'noudev nodevfs pci=routeirq'
> command line options until more is known.
> (They should make system work like pre-2.6.9)

pci=routeirq only has effect on i386 and ia64 boxes.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: [parisc-linux] I/O MMU @ fffffffffed20000 is out of mapping
	resources: re-occured
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Hi all,

Sorry but this pb:
Kernel panic - not syncing: /CAD/linux-2.6.11-rc4-pa2-050221/drivers/pari=
sc/sba_iommu.c:
I/O MMU @ fffffffffed20000 is out of mapping resources

just re-occured while an apt-get update again.
(I wrongly though it disappeared because hiden last week eventhought I re=
-mirrored
the slice containing deb 'depot')

Thanks in advance for attention,
    Joel


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Subject: Re: [parisc-linux] I/O MMU @ fffffffffed20000 is out of mapping
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On Tue, Feb 22, 2005 at 09:30:59AM +0100, Joel Soete wrote:
> Hi all,
> 
> Sorry but this pb:
> Kernel panic - not syncing: /CAD/linux-2.6.11-rc4-pa2-050221/drivers/parisc/sba_iommu.c:
> I/O MMU @ fffffffffed20000 is out of mapping resources
> 
> just re-occured while an apt-get update again.
> (I wrongly though it disappeared because hiden last week eventhought
> I re-mirrored the slice containing deb 'depot')

This is a non-trivial issue that has been around since pci_dma mapping
interface was introduced. Two things need to happen:
1) parisc implements support for dma_mapping_error()
2) drivers use dma_mapping_error() to verify the mapping
   resource they asked for was available.

Sorry, I've been ignoring the issue since I don't see it on my boxes.
I'm not sure why you are seeing it and I'm not.
Likely you have less RAM installed than I (normally 2-4 GB).

Can you try changing sba_mem_ratio to 4 or 2 in drivers/parisc/sba_iommu.c:
/* Ratio of Host MEM to IOV Space size */
static unsigned long sba_mem_ratio = 8;

I'll even take a patch that makes this a commandline parameter :^)
(ie used by both ccio and sba drivers).

sorry,
grant
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Subject: Re: [parisc-linux] HP model 612 hard disk not found
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On Thu February 24 2005 03:57, Marios K. wrote:
> I have an old HP Model 612 with 64MB Ram, 1 Seagete scsi hard disk.
> I manage to find a scsi cdrom, so i tried to install debian.
> The scsi cable had the capability to install only one disk, so i found
> another one with possibility of connecting the hard disk and the cdrom.
> 
> I connected the hard disk on the "middle" connector of the cable and put
> the scsi id at 2.0
> 
> I connected the the cdrom on the "outer" connector and put the scsi id
> as 4.0
> 
> Booting in BOOT_ADMIN> and writing search
> The boot loader found them both.
> Seagete SCSI.2.0
> Pioneer SCSI.4.0
> 
> Ok then, i write
> boot scsi.4.0
> And the installation begins,
> After linux kernel loader, i see the it has found both cdrom and hard
> disk with the scsi id correct.
> I choose language-keyboard.
> I configure network (although it is not connected to the network for the
> moment), but when it comes to partition the disk it says
> NO HARD DISK FOUND. CONFIGURE NETWORK FOR NFS MOUNT something....
>
Could be that the installer is only looking for the primary hard disk;
which for hp, pa-risc is id 6 (secondary is id 5)...
(-- Could by I have those reversed -- Might be pri=5, sec=6 )

Try setting your scsi id numbers, disk=6, cdrom=5.
( Or the reverse of that )

OR
Configure your network, and net-boot the machine.
You can find directions on the site for doing that.

Note:
With 64M of ram, be sure to allow a generous swap
partition when you partition your disk drive.

Mike
> 
> Why the installer can't see the hard disk, while in boot time it sees
> it?
> The hard disk contains an HPUX OS.
> 
> 
> 
> 
> P.S. I apologize if this issue has already answered, but i couldn't find
> nothing on the net. I would appreciate if you cc me.
> 
> 
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I have an old HP Model 612 with 64MB Ram, 1 Seagete scsi hard disk.
I manage to find a scsi cdrom, so i tried to install debian.
The scsi cable had the capability to install only one disk, so i found
another one with possibility of connecting the hard disk and the cdrom.

I connected the hard disk on the "middle" connector of the cable and put
the scsi id at 2.0

I connected the the cdrom on the "outer" connector and put the scsi id
as 4.0

Booting in BOOT_ADMIN> and writing search
The boot loader found them both.
Seagete SCSI.2.0
Pioneer SCSI.4.0

Ok then, i write
boot scsi.4.0
And the installation begins,
After linux kernel loader, i see the it has found both cdrom and hard
disk with the scsi id correct.
I choose language-keyboard.
I configure network (although it is not connected to the network for the
moment), but when it comes to partition the disk it says
NO HARD DISK FOUND. CONFIGURE NETWORK FOR NFS MOUNT something....

Why the installer can't see the hard disk, while in boot time it sees
it?
The hard disk contains an HPUX OS.




P.S. I apologize if this issue has already answered, but i couldn't find
nothing on the net. I would appreciate if you cc me.


-- 
Marios K. <marios_hellas_23@yahoo.gr>


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Subject: FW: Can't mount F0 partition as /BOOT
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Looks like things have changed since I first put Debian-hppa on my J6000. I
finally got 2.4.17-32 loaded and running after realizing that someone
changed things so that you no longer mount /boot at install, you just greate
a bootable f0 partition and the rest happens by magic, except, of course,
you have to change palo.conf to (in my case) point to 1/vmlinux instead of
1/boot/vmlinux. Next I made the mistake of loading 2.4.26-32-smp and, when I
finally got that to load (you have to point the recoverykernel to the
2.4.26-32-smp image too or otherwise it just keeps loading 2.4.17-32), I got
... "Searching for devices" again. Enough for one day!

-----Original Message-----
From: Harry Cochran [mailto:h.cochran@comcast.net]
Sent: Thursday, February 24, 2005 5:36 PM
To: parisc-linux@lists.parisc-linux.org; debian-hppa@lists.debian.org
Subject: Can't mount F0 partition as /BOOT


Hi,

	I am rebuilding my J6000. I boot from the official Debian hppa install cd,
partition the disks, making a nice 64MB F0 partition that I mark as
bootable, a swap partition and several Linux partitions, initialize the
swap, and then...

	I hit the button to initialze a disk and low and behold the boot partition
I set up is not among the partitions that pop up to be initialized. If I do
"View Paritions", there is sda1 and it's marked --Not Available--.

	I'm sure it's something simple, but I can't see what I'm doing wrong. Your
help will be appreciated.

Thanks,

Harry


--
To UNSUBSCRIBE, email to debian-hppa-REQUEST@lists.debian.org
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From: Max Grabert <parisc@gmail.com>
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Subject: Re: [parisc-linux] HPPA autofs broken?
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On Thu, 24 Feb 2005 18:39:51 -0700 (MST), Christopher Strong
<strong@cs.utah.edu> wrote:
> 
> I just upgraded my autofs (using apt-get upgrade) and autofs will no longer
> start.  I beat my head against it for a while, upgraded to the newest modutils,
> even tried the beta autofs packages but to no avail.
> 
> It *used* to work before the "upgrade" and I don't know if I have some errors
> in my config file (under the new version) or if there is a problem with the
> autofs package.

Autofs was broken in testing/unstable for quite a while (ie. months), it simply
didn't unmount. About a month ago they fixed it in testing, but it seems it's
*still* broken on parisc :(

I'm currently using the 'stable' release version of autofs on my Debian/testing
system for the time being - at least that one works for me.

Greetings,
   Max
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Subject: Can't mount F0 partition as /BOOT
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Xref: news.gmane.org gmane.linux.ports.parisc:22377

Hi,

	I am rebuilding my J6000. I boot from the official Debian hppa install cd,
partition the disks, making a nice 64MB F0 partition that I mark as
bootable, a swap partition and several Linux partitions, initialize the
swap, and then...

	I hit the button to initialze a disk and low and behold the boot partition
I set up is not among the partitions that pop up to be initialized. If I do
"View Paritions", there is sda1 and it's marked --Not Available--.

	I'm sure it's something simple, but I can't see what I'm doing wrong. Your
help will be appreciated.

Thanks,

Harry


-- 
To UNSUBSCRIBE, email to debian-hppa-REQUEST@lists.debian.org
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Subject: Re: [parisc-linux] Can't mount F0 partition as /BOOT
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On Thu February 24 2005 16:36, Harry Cochran wrote:
> Hi,
> 
>  I am rebuilding my J6000. I boot from the official Debian hppa install cd,
> partition the disks, making a nice 64MB F0 partition that I mark as
> bootable, a swap partition and several Linux partitions, initialize the
> swap, and then...
> 
>  I hit the button to initialze a disk and low and behold the boot partition
> I set up is not among the partitions that pop up to be initialized. If I do
> "View Paritions", there is sda1 and it's marked --Not Available--.
> 

That is correct, the F0 partition is only understood by PALO.
No need for other initialization than the 'F0' maker.


Mike
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I just upgraded my autofs (using apt-get upgrade) and autofs will no longer
start.  I beat my head against it for a while, upgraded to the newest modutils,
even tried the beta autofs packages but to no avail.

It *used* to work before the "upgrade" and I don't know if I have some errors
in my config file (under the new version) or if there is a problem with the
autofs package.

Here are the errors I am getting:

==> daemon.log <==
Feb 24 18:25:15 trinsic automount[1152]: failed to load map, exiting
Feb 24 18:25:15 trinsic automount[1215]: failed to load map, exiting

I get the same errors in syslog and daemon.log, one error per entry in the
autofs.master file.

My auto.master file:

----------------------------------------

trinsic:~# cat /etc/auto.master
/home                    yp     auto_home       nfsvers=2
/uusoc/facility          yp     auto_facility   nfsvers=2
/uusoc/scratch           yp     auto_scratch

----------------------------------------

Seems fairly simple to me.  It's the one we run on all of our other Linux
boxes.

Any ideas?  I've spent a couple hours on it...found several issues and fixed
them, but nothing seems to help this problem.

I found debian bug 292981 on a similar topic:

http://lists.debian.org/debian-qa-packages/2004/12/msg00123.html

So I upgraded to the newest unstable package
(autofs_4.1.3+4.1.4beta2-3_hppa.deb), but it did not help.

-Chris




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Subject: Anyone know where 2.4.26-pa5-32-smp is?
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Hi,

	Before I began trying to upgrade kernel-image-2.4.26-pa5-32-smp, I had a
nice running system for many months. Now I can't find this kernel again and
kernel-image-2.4.26-32-smp on stable, unstable and testing dies during boot
on my J6000 at "Searching for devices" (bug# 269037). Does anyone know where
I can get kernel-image-2.4.26-pa5-32-smp? Of course, I'm ultimately hoping
to upgrade to 2.6, but I just wasted 4 days trying and I have to ship the
J6000 off soon.

Thanks,

Harry


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On Fri February 25 2005 03:06, Marios K. wrote:
> 
> > Could be that the installer is only looking for the primary hard disk;
> > which for hp, pa-risc is id 6 (secondary is id 5)...
> > (-- Could by I have those reversed -- Might be pri=5, sec=6 )
> > 
> > Try setting your scsi id numbers, disk=6, cdrom=5.
> > ( Or the reverse of that )
> > 
> > OR
> No, that didn't worked.
> But opening a console and dmesg , i found that the hard disk couldoun't
> be mounted due filesystem something. Unfortunatelly the system is in my
> home and i can't remember the excactly message. I tried to mount it
> manially by using 
> mount /dev/scd0 /target
> /dev/sda
> /dev/sda1
> etc
> But nothing works. 
> How can i mount it. It has a filesystem of HP-UX.
> fdisk command doesn't exist
> 
Hmm...
If you could provide a little more information

I haven't used the new Debian installer, but the following should
work - it is typical of Linux installs.

1) Boot from your cd.

2) If this gives you a choice of kernels, just 'enter' for the default.

3) The installation process will display its first set of questions as
soon as the selected kernel boots.

4) You are now running Linux, only from the cdrom and a ramdisk.

5) Installers normally have multiple consoles enabled...
the keystrokes: 'Alt-Fx' for (usually) F1-F5 will switch to the other
consoles. (Alt-F7 is the console with X on it if that is running.)

6) Switch out of the installer's console into one of the others.

7) You may have to login - not sure about this installer.

8) Linux is similar to HP-UX (any *nix) you should have most of
the commands available that you are used too.

9) try: mount
To get an idea where things are mounted

10) find where: /var/log/dmesg is located.
Find some way to post it on the list.
If you have the machine networked to something else, you
should be able to 'scp' the file to the other machine (if the
other machine is running sshd and the network interface is up).

Mike
> 
> 
>  
> Marios K. <marios_hellas_23@yahoo.gr>
> 
> 
> _______________________________________________
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> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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> > But nothing works. 
> > How can i mount it. It has a filesystem of HP-UX.
> > fdisk command doesn't exist

I don't believe that there is support to directly mount HP-UX file
systems (i.e., hfs or vxfs).  One way might be using nfs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] I/O MMU @ fffffffffed20000 is out of mapping
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Grant Grundler wrote:
> On Tue, Feb 22, 2005 at 09:30:59AM +0100, Joel Soete wrote:
> 
>>Hi all,
>>
>>Sorry but this pb:
>>Kernel panic - not syncing: /CAD/linux-2.6.11-rc4-pa2-050221/drivers/parisc/sba_iommu.c:
>>I/O MMU @ fffffffffed20000 is out of mapping resources
>>
>>just re-occured while an apt-get update again.
>>(I wrongly though it disappeared because hiden last week eventhought
>>I re-mirrored the slice containing deb 'depot')
> 
> 
> This is a non-trivial issue that has been around since pci_dma mapping
> interface was introduced. Two things need to happen:
> 1) parisc implements support for dma_mapping_error()
> 2) drivers use dma_mapping_error() to verify the mapping
>    resource they asked for was available.
> 
> Sorry, I've been ignoring the issue since I don't see it on my boxes.
too bad (well for me)

> I'm not sure why you are seeing it and I'm not.
fwiw the pb appeared just after the moment I finaly take the time to mirror my boot disk (a 9gb) with the data one (a 36Gb one) and 
specialy during an 'apt-get update' apprently during the gunzip phase.
that said when I mark one slice failed (either sda10 or sbd10 here, where I put my local debian archives) the pb disappear.
Do you also use raid1 to mirror your disk?

> Likely you have less RAM installed than I (normally 2-4 GB).
> 
Only 256Mb (this was just a low cost ws to monitor systems with VPO and unfortunately linux is not an 'official' proj in my company 
to get more budget for my test; I can only thanks some colleagues to help me recover some used hw ;-)

> Can you try changing sba_mem_ratio to 4 or 2 in drivers/parisc/sba_iommu.c:
> /* Ratio of Host MEM to IOV Space size */
> static unsigned long sba_mem_ratio = 8;
> 
Obviously, I will let you know asap ;-)

> I'll even take a patch that makes this a commandline parameter :^)
> (ie used by both ccio and sba drivers).
> 
> sorry,
No no, I was just convience that pb was solved, as it wasn't I would just like to remember it (as you asked ;-)

Thanks a lot for all,
	Joel
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On Sat, Feb 26, 2005 at 02:44:01PM +0000, Joel Soete wrote:
> >Likely you have less RAM installed than I (normally 2-4 GB).
> Only 256Mb

Yeah, that's the problem. With 1/8th of that (32MB), one can easily
exhaust the IOMMU resources.

Let me think about this more. The ratio 1/8 is wrong in most cases.
I'm thinking it should be 1:1 with host mem size up to the max IOMMU
size of 1GB.

grant
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On Sat, Feb 26, 2005 at 11:29:01AM -0500, John David Anglin wrote:
> > > But nothing works. 
> > > How can i mount it. It has a filesystem of HP-UX.
> > > fdisk command doesn't exist
> 
> I don't believe that there is support to directly mount HP-UX file
> systems (i.e., hfs or vxfs).  One way might be using nfs.

UFS works for HPUX disks the last time I tried it a few years ago.

But, HPUX LVM is incompatible with linux LVM.
Ie the HPUX "HFS" (aka UFS) must be "whole disk".

grant
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On Fri, 25 Feb 2005 17:44:52 -0700 (MST), Christopher Strong
<strong@cs.utah.edu> wrote:
> 
> > I'm currently using the 'stable' release version of autofs on my Debian/testing
> > system for the time being - at least that one works for me.
> 
> Okay, I have it working now with that version, though not at all with the
> "unstable" or "testing" versions.

It seems a new version of autofs ('4.1.3+4.1.4beta2-2') went into testing.
This one is working fine for me.

  Max
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jda, tausq,

Comments on the assembly? 

I'm cleaning up the libc trampoline routines that are called during lazy
symbol resolution. We need to make changes to the profile version in
order to support library auditing.

The complete mechanics of this function call aren't that important, I'm
looking for comments on any ABI bits I missed.

For those that like to know mechanics:

a. In early ELF setup code we know we are going to use _dl_fixup from
   a particular shared object, so we plunk down the ltp for that code
   into the PLT.

b. Then when you call a function that hasn't been resolved you get
   bounced through the PLT to the trampoline, and not the function.
   This is lazy resolution. At startup we didn't bother to bind all
   the symbols, instead we filled the PLT with bounces to the trampoline
   routine (and eventually this leads to symbol resolution).

c. The bounce from the PLT to the trampoline is a bit of code at the
   end of the PLT. It loads up the following parameters and calls the
   trampoline with a non-standard non-abi function call (it doesn't 
   make a stack/frame or use the proper registers).

   Trampoline parameters:
	r19 = Relocation offset.
	r20 = Somwhere in the GOT (used to get your own link_map)
	r21 = _dl_fixup's PIC register value (ltp)

   Trampoline calls _dl_fixup with:
	r26 = got[1] (your own link_map)
	r25 = relocation offset

   If you are profiling:
	r24 = contains your rp.
	The stack has all the library auditing parameters.

d. _dl_fixup uses the relocation offset, and the link_map to find the
   symbol you need. Then it sets up the PLT so this doesn't happen
   again and then returns. 

   If we are profiling, there is the posibility that the code can call
   one of two functions PLTENTER or PLTEXIT. That is a user can register
   a set of functions to be called as you enter the PLT and as you exit 
   the PLT. This allows user code to audit the loading process.

   TODO: Working on this last bit, hence the note in the assemble.

e. Walking the bottom half of the trampoline restores the users
   arguments they were passing to the function in the first place
   and continues execution.

---

/* PLT trampolines. hppa version.
   Copyright (C) 2005 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <sysdep.h>

/* This code gets called via the .plt stub, and is used in
   dl-runtime.c to call the `_dl_fixup' function and then redirect 
   to the    address it returns. `_dl_fixup' takes two
   arguments, however `_dl_profile_fixup' takes a number of 
   parameters for use with library auditing (LA).
   
   WARNING: This template is also used by gcc's __cffc, and expects
   that the "bl" for _dl_runtime_resolve exist at a particular offset.
   Do not change this template without changing gcc, while the prefix
   "bl" should fix everything so gcc finds the right spot, it will
   slow down __cffc when it attempts to call fixup to resolve function
   descriptor references. Please refer to gcc/gcc/config/pa/fptr.c
   
   Enter with r19 = reloc offset, r20 = got-8, r21 = fixup ltp.  */

	/* FAKE bl to provide gcc's __cffc with fixup loc. */
	.text
	bl	_dl_fixup, %r2
        .text
        .align 4
        .global _dl_runtime_resolve
        .type _dl_runtime_resolve,@function
_dl_runtime_resolve:
        .PROC
        .CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=3
        .ENTRY
        /* SAVE_RP says we do */
        stw %rp, -20(%sr0,%sp)

 	/* Save argument registers in the call stack frame. */
	stw	%r26,-36(%sp)
	stw	%r25,-40(%sp)
	stw	%r24,-44(%sp)
	stw	%r23,-48(%sp)

	/* Build a call frame, and save structure pointer. */
	copy	%sp, %r26	/* Copy previous sp */
	stwm	%r28,64(%sp)

	/* Fillin some frame info to follow ABI */
	stw	%rp,-20(%sp)	/* Set a reasonable rp */
	stw	%r26,-4(%sp)	/* Save previous sp */

 	/* Set up args to fixup func, needs only two arguments  */
	ldw	8+4(%r20),%r26		/* (1) got[1] == struct link_map */
	copy	%r19,%r25		/* (2) reloc offset  */

 	/* Call the real address resolver. */
	bl	_dl_fixup,%r2
	copy	%r21,%r19		/* set fixup func ltp */

	/* Load up the returned func ptr */
	ldw	0(%ret0),%r22		
	ldw	4(%ret0),%r19

	/* Adjust the stack */
	ldwm	-64(%sp),%r28

	/* Reload arguments. */
	ldw	-36(%sp),%r26
	ldw	-40(%sp),%r25
	ldw	-44(%sp),%r24
	ldw	-48(%sp),%r23

	/* Return */
	bv	%r0(%r22)
	ldw	-20(%sp),%r2
        .EXIT
        .PROCEND
	.size   _dl_runtime_resolve, . - _dl_runtime_resolve


	/* FIXME:
		Need to largely rewrite the bottom half of
		this code in order to save and restore the
		LA struct from the stack along with
		interpreted parameters.
	*/
        .text
        .align 4
        .global _dl_runtime_profile
        .type _dl_runtime_profile,@function
_dl_runtime_profile:
        .PROC
        .CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=3
        .ENTRY
        /* SAVE_RP says we do */
        stw %rp, -20(%sr0,%sp)

 	/* Save argument registers in the call stack frame. */
	stw	%r26,-36(%sp)
	stw	%r25,-40(%sp)
	stw	%r24,-44(%sp)
	stw	%r23,-48(%sp)

	/* Build a call frame, and save structure pointer. */
	copy	%sp, %r26	/* Copy previous sp */
	stwm	%r28,64(%sp)

	/* Fillin some frame info to follow ABI */
	stw	%rp,-20(%sp)	/* Set a reasonable rp */
	stw	%r26,-4(%sp)	/* Save previous sp */

 	/* Set up args to fixup func, needs three arguments  */
	ldw	8+4(%r20),%r26		/* (1) got[1] == struct link_map */
	copy	%r19,%r25		/* (2) reloc offset  */
	copy    %rp,%r24		/* (3) profile_fixup needs rp */

 	/* Call the real address resolver. */
	bl	_dl_profile_fixup,%rp
	copy	%r21,%r19		/* set profile_fixup func ltp */

	/* Load up the returned func ptr */
	ldw	0(%ret0),%r22		
	ldw	4(%ret0),%r19

	/* Adjust the stack */
	ldwm	-64(%sp),%r28

	/* Reload arguments. */
	ldw	-36(%sp),%r26
	ldw	-40(%sp),%r25
	ldw	-44(%sp),%r24
	ldw	-48(%sp),%r23

	/* Return */
	bv	%r0(%r22)
	ldw	-20(%sp),%r2
        .EXIT
        .PROCEND
	.size   _dl_runtime_profile, . - _dl_runtime_profile



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Cc: parisc-linux@lists.parisc-linux.org,
 tausq@debian.org
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> 	/* Build a call frame, and save structure pointer. */
> 	copy	%sp, %r26	/* Copy previous sp */
> 	stwm	%r28,64(%sp)

r28?  I'm thinking that the static chain (r29) and struct value
(r28) registers need to be saved as well as r23-r26.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Upgrading from 2.4 to 2.6
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Harry Cochran wrote:

> Thanks for your input. Could it really be true that the "stable" version of
> 2.6 (2.6.8-2-32-smp) can't recognize an ext3 root partition? The only way I
> know to "load a new kernel" since I can only boot fromt he install cd is to
> blow away what I have spent a lot of time building. Seems like I'm missing
> something.

Yes, that is true. IF the ext3 filesystem is not built into the kernel (but 
compiled as a module) then the system cannot use that as the root filesystem. 
Its a kind of chicken and egg problem: the kernel needs to know the filesystem 
to access the modules.

You donnot need to put away a lot: If ext2 is buld-in and ext3 is not, just 
update (downdate...) /etc/fstab to indicate that root is in ext2. I expect ext3 
is readable as ext2 too. If needed you might need to downgrade the root to ext2 
(with `tune2fs`, remove the journalling stuff).

An other idea is to use an other machine to put a kernel on the boot-partition 
that can read ext3.

Then, you can also try to load the ext3 module (or any other module) from an 
other medium like tape, cdrom or network, if the kernel can use that.


Success

CBee



> 
> -----Original Message-----
> From: cbeerse@gmail.com [mailto:cbeerse@gmail.com]
> Sent: Thursday, February 24, 2005 4:46 AM
> To: Harry Cochran
> Subject: Re: [parisc-linux] Upgrading from 2.4 to 2.6
> 
> 
> Harry Cochran wrote:
> 
> 
>>Hi,
>>
>>	Could someone please help me recover from a failed attempt to upgrade my
>>J6000 to 2.6?
>>
>>	Looks like I can't boot the 2.4 kernel I have on the system because it's
>>name doesn't end in 32 or 64 (it ends in smp) -><-.
>>
>>	My J6000 has a cd-rom, so I thought maybe I could boot from that, but sea
>>ipl doesn't find it.
>>
>>Here's my original question:
>>
>>*************
>>
>>	Sorry for the newbie question, but I'm trying to boot 2.6 and I don't
> 
> quite
> 
>>understand how to set up the "root=" for it.
> 
> 
> With palo, the partition/mount info is also important: some directories are
> relative to the boot-partition, others are relative to the root partition.
> 
> 
>>My palo.conf says:
>>--command line=1/boot/vmlinux root=/dev/sda3 HOME=/ initrd=/initrd.img
>>console=ttyS0 TERM=vt102
>>--recoverykernel=/boot/vmlinux
> 
> 
> This recovery-kernel is relative to the run-time root.
> Be noted, this kernel is moved to the palo-partition (/dev/sda0) when
> running
> `palo`. Best to use the distro's kernel for this, alternative, a kernel that
> sure works for recovery purposes. Most systems have /boot/vmlinux a softlink
> to
> the prefered kernel, which most times is not the recovery kernel...
> 
> 
>>--init-partitioned=/dev/sda
>>
>>Here's what my palo.conf generates on boot right now:
>>
>>0 1/boot/vmlinux
> 
> 
> The 1 indicates partition 1 is the boot-partition, the /boot/vmlunix is a
> relative path on that partition. Hence, If /dev/sda1 is your /boot
> partition, te
> line should be: "1/vmlinux".
> 
> Then, the filesystem of /boot is best `ext2` since that is supported by
> most, if
> not all tools. Other filesystems might not be supported.
> 
> 
>>1 root=/dev/sda3
> 
> 
> The root filesystem
> 
> 
>>2 HOME=/
>>3 initrd=/initrd.img
> 
> 
> Carefully check if the initrd parameter is relative to the root or to the
> boot
> filesystem.
> 
> 
>>4 console=ttys0
>>5 TERM=vt102
>>
>>On boot I get:
>>
>>cannot open root device "sda3" or unknownblock(2.0)
> 
> 
> What is the filesystem on /dev/sda3? It better be ext2 since that is
> understood
> by most systems. ext3 is possible, I would not use others.
> 
> 
>>Please append a correct "root=" boot option
>>Kernel panic: VFS: Unable to mount root fs or unknown-block(2.0)
> 
> 
> I think your kernel only allows ext2 and finds something else.
> 
> 
>>	I have seen one document which says I have to build a ramdisk, but it
>>doesn't tell me how. What's worse is that I can't get 2.4.26 to boot again
>>even though I have a symlink (vmlinux.old) to it. I tried changing line 0
> 
> to
> 
>>1/boot/vmlinux.old (and deleting the "initrd=/initrd.img" line, but it
> 
> still
> 
>>boots 2.6.8. I even tried inserting a line saying
>>recoverykernel=/boot/vmlinux.old but that didn't help.
> 
> 
> I've seen teh palo that comes with gentoo has an option to list the
> directory of
> the boot-device, so you can check the kernel path.
> 
> Keep in mind:
> palo must be able to read the boot device (/dev/sd1). Try ext2.
> The kernel must be able to read the root device without loading a module.
> Most
> kernels have ext2 build in.
> 
> 
> My idea: once you have a proper working kernel, build a new one without any
> modules (all stuff build in) and configure that as a recovery kernel in
> palo.
> 
> 
>>*************
>>
>>	I'm sure there's an easy answer and maybe everyone is tired of answering
>>these kind of newbie questions, but I'm desperate, so I thought I'd try
> 
> one
> 
>>more time.
>>
>>Thanks,
>>
>>Harry
>>
>>
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
> 
> 
> 

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On Wed, Mar 02, 2005 at 02:41:44PM -0500, John David Anglin wrote:
> > 	/* Build a call frame, and save structure pointer. */
> > 	copy	%sp, %r26	/* Copy previous sp */
> > 	stwm	%r28,64(%sp)
> 
> r28?  I'm thinking that the static chain (r29) and struct value
> (r28) registers need to be saved as well as r23-r26.

To be truthful I'm only saving r28 because in the legacy code we saved
r28. I didn't know our toolchain used r28 for function entry or r29 for
function entry.

Are you suggesting this because we could use them in the future?

I know that r29 is the "static link register" for entry.
I don't understand the full purpose of r28 which is the "function result
address" on entry.

This is exactly the type of feedback I wanted! Thanks.

What do I do about the floating point registers?

Cheers,
Carlos.

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> On Wed, Mar 02, 2005 at 02:41:44PM -0500, John David Anglin wrote:
> > > 	/* Build a call frame, and save structure pointer. */
> > > 	copy	%sp, %r26	/* Copy previous sp */
> > > 	stwm	%r28,64(%sp)
> > 
> > r28?  I'm thinking that the static chain (r29) and struct value
> > (r28) registers need to be saved as well as r23-r26.
> 
> To be truthful I'm only saving r28 because in the legacy code we saved
> r28. I didn't know our toolchain used r28 for function entry or r29 for
> function entry.

Yes, it uses both.  I now see that the code is saving and
restoring r28.

> Are you suggesting this because we could use them in the future?
> 
> I know that r29 is the "static link register" for entry.
> I don't understand the full purpose of r28 which is the "function result
> address" on entry.

r28 is used to pass the return address for structures larger
than 8 bytes.  Use of r29 on input is fairly rare.

GCC will clobber r28 and r29.  Thus, you need to save both.

> What do I do about the floating point registers?

Hmmm, there is one circumstance where floating point registers
can be used in integer code.  That's for the xmpyu instruction.
Thus, you should either save the argument registers, or compile
the code that does symbol resolution using -mdisable-fpregs,
or with GCC 4.0 or later compile with -mfixed-range specifying
the fp argument registers as fixed.  The latter will stop GCC
from using the argument fp argument registers.  Since the path
is only used once per function call, it's probably best to save
all the possible argument registers.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Wed, Mar 02, 2005 at 05:38:41PM -0500, John David Anglin wrote:
> > To be truthful I'm only saving r28 because in the legacy code we saved
> > r28. I didn't know our toolchain used r28 for function entry or r29 for
> > function entry.
> 
> Yes, it uses both.  I now see that the code is saving and
> restoring r28.

Yes, I store/load it into/from the stack.  I like stwm since it
automatically adjusts the stack and gives you a free register to play
with.
 
> r28 is used to pass the return address for structures larger
> than 8 bytes.  Use of r29 on input is fairly rare.

Ok.
 
> GCC will clobber r28 and r29.  Thus, you need to save both.

Ok. I will save both.

> > What do I do about the floating point registers?
> 
> Hmmm, there is one circumstance where floating point registers
> can be used in integer code.  That's for the xmpyu instruction.
> Thus, you should either save the argument registers, or compile
> the code that does symbol resolution using -mdisable-fpregs,
> or with GCC 4.0 or later compile with -mfixed-range specifying
> the fp argument registers as fixed.  The latter will stop GCC
> from using the argument fp argument registers.  Since the path
> is only used once per function call, it's probably best to save
> all the possible argument registers.

There are a lot of files that do symbol resolution. I think I might just
save the fp argument registers, and thus allow gcc to do any sorts of
optimizations it wishes with therest of the code, knowing that the
arguments are all saved and restored on the initial function call.

Thanks.


I have to get all the LA patches added. Test that. Then add the cfi
directives and test Randolphs cfi patch.

c.

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> There are a lot of files that do symbol resolution. I think I might just
> save the fp argument registers, and thus allow gcc to do any sorts of
> optimizations it wishes with therest of the code, knowing that the
> arguments are all saved and restored on the initial function call.

Sounds good.

I think we have somehow broken __cffc.  I did a binutils build
yesterday and various ld tests are now failing.  These are tests
that compare function pointers.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Grant Grundler wrote:
> On Sat, Feb 26, 2005 at 11:29:01AM -0500, John David Anglin wrote:
> 
>>>>But nothing works. 
>>>>How can i mount it. It has a filesystem of HP-UX.
>>>>fdisk command doesn't exist
>>
>>I don't believe that there is support to directly mount HP-UX file
>>systems (i.e., hfs or vxfs).  One way might be using nfs.
> 
> 
> UFS works for HPUX disks the last time I tried it a few years ago.
> 
> But, HPUX LVM is incompatible with linux LVM.
> Ie the HPUX "HFS" (aka UFS) must be "whole disk".
> 
Just to add some fresh test info:
I build such full disk with a hpux-11.00 (bundle dated Dec 2000) on my c110 and tried:
# mount -t ufs /dev/sdc /mnt/UFS-tst
mount: wrong fs type, bad option, bad superblock on /dev/sdc,
        missing codepage or other error
        In some cases useful info is found in syslog - try
        dmesg | tail  or so

dmeg saying:
ufs was compiled with read-only support, can't be mounted as read-write

I changed:
# mount -t ufs -o ro /dev/sdc /mnt/UFS-tst

even thought it accepts to mount system still complaining:
You didn't specify the type of your ufs filesystem

mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|netxstep-cd|openstep ...

 >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old
ufs_read_super: can't grok fs_clean 0x17

So finaly it was:
# mount -t ufs -o ufstype=hp -o ro /dev/sdc /mnt/UFS-tst

(ufs_read_super: can't grok fs_clean 0x17 message persist; I assume just a warning)

then reading in such fs seems ok (find all file in kernel tree, tar -tvf of kernel src tar)

Thanks Grant,
	Joel
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On Thu, Mar 03, 2005 at 06:28:42PM +0000, Joel Soete wrote:
> >replace ioc_count in just that one context with
> >	count_parisc_drivers(ccio_driver)
...
> -/* Ratio of Host MEM to IOV Space size */
> -static unsigned long ccio_mem_ratio = 4;
>  static struct ioc *ioc_list;
> -static int ioc_count;
> +static int ioc_count = 0;
> +static int global_ioc_cnt = 0;

You won't need global_ioc_cnt.
Just call count_parisc_drivers() every time.
It's walking a short list and hopefully gives back
the same result everytime.

> 
>  /**************************************************************
>  *
> @@ -559,7 +558,7 @@
>  ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
>  		   unsigned long hints)
>  {
> -	register unsigned long pa = (volatile unsigned long) vba;
> +	register unsigned long pa;
>  	register unsigned long ci; /* coherent index */
> 
>  	/* We currently only support kernel addresses */
> @@ -1269,17 +1268,16 @@
>  	** Hot-Plug/Removal of PCI cards. (aka PCI OLARD).
>  	*/
> 
> +	iova_space_size = (u32) (num_physpages / global_ioc_cnt);

call count_parisc_drivers() here instead of global_ioc_cnt.

> -/* We *can't* support JAVA (T600). Venture there at your own risk. */
> -static struct parisc_device_id ccio_tbl[] = {
> -	{ HPHW_IOA, HVERSION_REV_ANY_ID, U2_IOA_RUNWAY, 0xb }, /* U2 */
> -	{ HPHW_IOA, HVERSION_REV_ANY_ID, UTURN_IOA_RUNWAY, 0xb }, /* UTurn */
> -	{ 0, }
> -};

Yeah, you'll have to move this (and related bits) further up.

> that boot fine and no more crash after stress test :-)
> (I hope the same results with previous disk failing ;-)

Very good. At least we are on the right track.

thanks,
grant
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This is my dmesg output

The model is 712-60 and not 612

I am begging to suspect the error vomes from the cd-rom

It is a very old cd-rom.

The cd i burned it is good quality and have been written in 4x speed

 

 

SCSI subsystem driver Revision: 1.00

53c700: version 2.6 By James...

SCSI0: 53c710 rev 2

SCSI0: LASI SCSI 53c700

SCSI0: (3:0) Synchronous at offest 8, period 100ns

Vendor: Seagete Model:ST34520N Rev:1444

Type:Direct Access ANSI SCSI revision:02

SCSI0: (5:0) Synchronous at offest 8, period 248ns

Vendor: PIONEER Model:CD-ROM DR-104X Rev:0022

Type:Direct CD-ROM ANSI SCSI revision:02

 

Attached SCSI disk sda at scsi0, channel 0, id 3 lun 0

SCSI device sda: 8888942 512-byte hdwr sectroe (4551 MB)

PARTITION CHECK

sda:unknown partition table

Attached SCSI CD-ROM sr0 at scsi0, channel 0, id 5 lun 0

sr0: scsi-1 drive

Uniform CD-ROM driver Revision:3.12

 

RAMDISK: Compressed image found at block 0

EXT2-FS warning: Checktime reached, running e2fsck is recommended

UFS:Mounted root (ext2 filesysstem)

NOT FREEING INITMEM (383K)

VFS:DISK CHANGE DETECTED in DRIVE sr(11,0)

SCSI0 (5:0) New error handler wants to abort command

0x28 88 88 88 88 10 00 00 01 00

SCSI0 (5:0) New error handler wants device to reset

0x28 88 88 88 88 10 00 00 01 00

SCSI0 (5:0) New error handler wants bus reset,cmd 13d14c00

0x28 88 88 88 88 10 00 00 01 00

SCSI0(5:0) Synchronous at offset 8,period 248ms

SCSI0 (5:0) New error handler wants to abort command

0x28 88 88 88 88 10 00 00 01 00

SCSI:device set offline-not ready or command retry failed after bus reset

I/O error: dev 0d:00,sector 64

isofs_read_super:dread failed, dev=0d:00, iso_blunum=16,block=16

SCSI0 (3:0) New error handler wants to abort command

0x28 88 88 88 88 10 00 00 08 00

SCSI0 (3:0) New error handler wants device to reset

0x28 88 88 88 88 10 00 00 08 00

SCSI0 (3:0) New error handler wants bus reset,cmd 13d14c00

0x28 88 88 88 88 10 00 00 08 00

SCSI: device setoffline-not ready or command retry failed

after bus reset:host 0 channel 0 id 3 lin 0




---------------------------------
Do You Yahoo!?
   @yahoo.gr    Yahoo! Mail.

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<DIV><FONT size=2>
<P>This is my dmesg output</P>
<P>The model is 712-60 and not 612</P>
<P>I am begging to suspect the error vomes from the cd-rom</P>
<P>It is a very old cd-rom.</P>
<P>The cd i burned it is good quality and have been written in 4x speed</P></FONT><FONT face="Courier New" size=2>
<P>&nbsp;</P>
<P>&nbsp;</P>
<P>SCSI subsystem driver Revision: 1.00</P>
<P>53c700: version 2.6 By James...</P>
<P>SCSI0: 53c710 rev 2</P>
<P>SCSI0: LASI SCSI 53c700</P>
<P>SCSI0: (3:0) Synchronous at offest 8, period 100ns</P>
<P>Vendor: Seagete Model:ST34520N Rev:1444</P>
<P>Type:Direct Access ANSI SCSI revision:02</P>
<P>SCSI0: (5:0) Synchronous at offest 8, period 248ns</P>
<P>Vendor: PIONEER Model:CD-ROM DR-104X Rev:0022</P>
<P>Type:Direct CD-ROM ANSI SCSI revision:02</P>
<P>&nbsp;</P>
<P>Attached SCSI disk sda at scsi0, channel 0, id 3 lun 0</P>
<P>SCSI device sda: 8888942 512-byte hdwr sectroe (4551 MB)</P>
<P>PARTITION CHECK</P>
<P>sda:unknown partition table</P>
<P>Attached SCSI CD-ROM sr0 at scsi0, channel 0, id 5 lun 0</P>
<P>sr0: scsi-1 drive</P>
<P>Uniform CD-ROM driver Revision:3.12</P>
<P>&nbsp;</P>
<P>RAMDISK: Compressed image found at block 0</P>
<P>EXT2-FS warning: Checktime reached, running e2fsck is recommended</P>
<P>UFS:Mounted root (ext2 filesysstem)</P>
<P>NOT FREEING INITMEM (383K)</P>
<P>VFS:DISK CHANGE DETECTED in DRIVE sr(11,0)</P>
<P>SCSI0 (5:0) New error handler wants to abort command</P>
<P>0x28 88 88 88 88 10 00 00 01 00</P>
<P>SCSI0 (5:0) New error handler wants device to reset</P>
<P>0x28 88 88 88 88 10 00 00 01 00</P>
<P>SCSI0 (5:0) New error handler wants bus reset,cmd 13d14c00</P>
<P>0x28 88 88 88 88 10 00 00 01 00</P>
<P>SCSI0(5:0) Synchronous at offset 8,period 248ms</P>
<P>SCSI0 (5:0) New error handler wants to abort command</P>
<P>0x28 88 88 88 88 10 00 00 01 00</P>
<P>SCSI:device set offline-not ready or command retry failed after bus reset</P>
<P>I/O error: dev 0d:00,sector 64</P>
<P>isofs_read_super:dread failed, dev=0d:00, iso_blunum=16,block=16</P>
<P>SCSI0 (3:0) New error handler wants to abort command</P>
<P>0x28 88 88 88 88 10 00 00 08 00</P>
<P>SCSI0 (3:0) New error handler wants device to reset</P>
<P>0x28 88 88 88 88 10 00 00 08 00</P>
<P>SCSI0 (3:0) New error handler wants bus reset,cmd 13d14c00</P>
<P>0x28 88 88 88 88 10 00 00 08 00</P>
<P>SCSI: device setoffline-not ready or command retry failed</P>
<P>after bus reset:host 0 channel 0 id 3 lin 0</P></FONT></DIV><p><br><hr size=1><b>Do You Yahoo!?</b><br>   
@yahoo.gr    
<a href="http://www.otenet.gr/">Yahoo! Mail</a>.<br>
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Subject: Re: [parisc-linux] [RE:] Installation Prolblem on model 712
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On Fri March 4 2005 05:21, =CE=9C=CE=AC=CF=81=CE=B9=CE=BF=CF=82 =CE=9A. wro=
te:
>=20
> This is my dmesg output
>=20
> The model is 712-60 and not 612
>=20
> I am begging to suspect the error vomes from the cd-rom
>=20
Possible, but the installer read the kernel and the=20
initial ram-disk from it.


> It is a very old cd-rom.
>=20
> The cd i burned it is good quality and have been written in 4x speed
>=20
What kernel is this?
These messages look as if they are from a very old kernel.


> =20
>=20
> =20
>=20
> SCSI subsystem driver Revision: 1.00
>=20
> 53c700: version 2.6 By James...
>=20
> SCSI0: 53c710 rev 2
>=20
> SCSI0: LASI SCSI 53c700
>=20
> SCSI0: (3:0) Synchronous at offest 8, period 100ns
>=20
> Vendor: Seagete Model:ST34520N Rev:1444
>=20
> Type:Direct Access ANSI SCSI revision:02
>=20
> SCSI0: (5:0) Synchronous at offest 8, period 248ns
>=20
> Vendor: PIONEER Model:CD-ROM DR-104X Rev:0022
>=20
> Type:Direct CD-ROM ANSI SCSI revision:02
>=20
> =20
>=20
> Attached SCSI disk sda at scsi0, channel 0, id 3 lun 0
>=20
> SCSI device sda: 8888942 512-byte hdwr sectroe (4551 MB)
>=20
> PARTITION CHECK
>=20
> sda:unknown partition table
>
Expected, the install kernel does not know hp-ux disks.


>=20
> Attached SCSI CD-ROM sr0 at scsi0, channel 0, id 5 lun 0
>=20
> sr0: scsi-1 drive
>=20
> Uniform CD-ROM driver Revision:3.12
>=20
> =20
>=20
> RAMDISK: Compressed image found at block 0
>=20
> EXT2-FS warning: Checktime reached, running e2fsck is recommended
>=20
Expected, side effect of how ram disks are built.


> UFS:Mounted root (ext2 filesysstem)
>=20
The following seem to be from an old kernel.
Perhaps someone else on list can give more detail
than myself.


> NOT FREEING INITMEM (383K)
>=20
> VFS:DISK CHANGE DETECTED in DRIVE sr(11,0)
>=20
> SCSI0 (5:0) New error handler wants to abort command
>=20
> 0x28 88 88 88 88 10 00 00 01 00
>=20
> SCSI0 (5:0) New error handler wants device to reset
>=20
> 0x28 88 88 88 88 10 00 00 01 00
>=20
> SCSI0 (5:0) New error handler wants bus reset,cmd 13d14c00
>=20
> 0x28 88 88 88 88 10 00 00 01 00
>=20
> SCSI0(5:0) Synchronous at offset 8,period 248ms
>=20
> SCSI0 (5:0) New error handler wants to abort command
>=20
> 0x28 88 88 88 88 10 00 00 01 00
>=20
> SCSI:device set offline-not ready or command retry failed after bus reset
>=20
> I/O error: dev 0d:00,sector 64
>=20
> isofs_read_super:dread failed, dev=3D0d:00, iso_blunum=3D16,block=3D16
>=20
> SCSI0 (3:0) New error handler wants to abort command
>=20
> 0x28 88 88 88 88 10 00 00 08 00
>=20
> SCSI0 (3:0) New error handler wants device to reset
>=20
> 0x28 88 88 88 88 10 00 00 08 00
>=20
> SCSI0 (3:0) New error handler wants bus reset,cmd 13d14c00
>=20
> 0x28 88 88 88 88 10 00 00 08 00
>=20
> SCSI: device setoffline-not ready or command retry failed
>=20
> after bus reset:host 0 channel 0 id 3 lin 0
>=20
>=20
>=20
>=20
> ---------------------------------
> Do You Yahoo!?
> =EF=BE=81=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BE=9E=EF=BF=BD=EF=BF=BD=
=EF=BF=BD =EF=BF=BD=EF=BF=BD=EF=BF=BD =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BE=9C=EF=BF=BD =EF=BF=BD=EF=BF=BD=EF=BF=BD@yahoo.gr =EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD  =EF=BF=BD=
=EF=BF=BD=EF=BF=BD Yahoo! Mail.
>=20
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Subject: Re: [parisc-linux] [RE:] Installation Prolblem on model 712
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Op vrijdag 4 maart 2005 12:21, schreef =CE=9C=CE=AC=CF=81=CE=B9=CE=BF=CF=82=
 =CE=9A.:
> This is my dmesg output
>
> The model is 712-60 and not 612
>
> I am begging to suspect the error vomes from the cd-rom
>
> It is a very old cd-rom.
>
> The cd i burned it is good quality and have been written in 4x speed

> Attached SCSI CD-ROM sr0 at scsi0, channel 0, id 5 lun 0
>
> sr0: scsi-1 drive

I think your CD drive is too old. I used to have some old single speed HP=20
readers that didn't work with self burned CD's. Youre drive reports scsi-1=
=20
but I think the 712 needs scsi-2 equipment, but I'm not sure about that.


The one I now use reports this:

sr0: scsi3-mmc drive: 0x/0x caddy
Uniform CD-ROM driver Revision: 3.20
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 4, lun 0

I'm using this on a 712/80 with a 2.6.10-pa11 kernel.=20

=2D-=20

 Greetings, Michiel Broek

mbroek@mbse.dds.nl  or  Fidonet 2:280/2802 to Michiel Broek.
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Subject: [parisc-linux] Re: Comments?
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On Wed, Mar 02, 2005 at 10:21:49PM -0500, John David Anglin wrote:
> > There are a lot of files that do symbol resolution. I think I might just
> > save the fp argument registers, and thus allow gcc to do any sorts of
> > optimizations it wishes with therest of the code, knowing that the
> > arguments are all saved and restored on the initial function call.
> 
> Sounds good.
> 
> I think we have somehow broken __cffc.  I did a binutils build
> yesterday and various ld tests are now failing.  These are tests
> that compare function pointers.

I didn't feed anything new into debian-glibc. All my patches have always
strived to keep __cffc working, if I messup the function pointer
comparison I get a slew of glibc testsuite failures which I always
patchup by making sure __cffc works :)

The last botch was a minor change in the trampoline template, which
prompted the addition of the 'bl' before the function that made use of
the magic '-4' check in __cffc.

c.

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> > I think we have somehow broken __cffc.  I did a binutils build
> > yesterday and various ld tests are now failing.  These are tests
> > that compare function pointers.
> 
> I didn't feed anything new into debian-glibc. All my patches have always
> strived to keep __cffc working, if I messup the function pointer
> comparison I get a slew of glibc testsuite failures which I always
> patchup by making sure __cffc works :)

I haven't touched fptr.c either, although there is a change in GCC
4.0 with respect to canonicalization.  I'm using the debian glibc,
2.3.2.ds1-20, on the system on which I noticed this problem.

2004-12-12  Nathanael Nerode  <neroden@gcc.gnu.org>
	    John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR middle-end/17564
	* dojump.c (do_compare_and_jump): Only canonicalize function pointers
	in a comparison if both sides are function pointers.

I checked that the binutils testsuite fails with 3.4, so I don't think
the problem is a GCC issue.  I was going to try and see what's happening
this afternoon.  I've been working on some testsuite cleanups today.

Another thing that I need to figure out is the cause of the libstdc++
fails:

hiauly6 4.0.0:
FAIL: 27_io/basic_filebuf/sgetn/char/1-in.cc execution test
FAIL: 27_io/basic_filebuf/sgetn/char/1-io.cc execution test
FAIL: 27_io/basic_filebuf/sgetn/char/2-in.cc execution test
FAIL: 27_io/basic_filebuf/sgetn/char/2-io.cc execution test
FAIL: 27_io/basic_filebuf/underflow/wchar_t/11603.cc execution test
FAIL: 27_io/basic_istream/readsome/char/6746-2.cc execution test
FAIL: 27_io/basic_istream/readsome/wchar_t/6746-2.cc execution test

gsyprf11 4.1.0:
FAIL: 22_locale/messages/members/char/1.cc execution test
FAIL: 22_locale/messages/members/char/2.cc execution test
FAIL: 22_locale/messages/members/char/wrapped_env.cc execution test
FAIL: 22_locale/messages/members/char/wrapped_locale.cc execution test
FAIL: 22_locale/messages_byname/named_equivalence.cc execution test

It's strange that the two systems have a completely different
sets of testsuite fails.  There aren't any fails under hpux.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > > I think we have somehow broken __cffc.  I did a binutils build
> > > yesterday and various ld tests are now failing.  These are tests
> > > that compare function pointers.
> > 
> > I didn't feed anything new into debian-glibc. All my patches have always
> > strived to keep __cffc working, if I messup the function pointer
> > comparison I get a slew of glibc testsuite failures which I always
> > patchup by making sure __cffc works :)
> 
> I haven't touched fptr.c either, although there is a change in GCC
> 4.0 with respect to canonicalization.  I'm using the debian glibc,
> 2.3.2.ds1-20, on the system on which I noticed this problem.

Ok, ld is broken in the binutils CVS head.
__canonicalize_funcptr_for_compare doesn't load the correct address
for _GLOBAL_OFFSET_TABLE_ in shared libraries.  It loads the address
used by main.  As a result, it thinks the plabel for the function
has been resolved ;(

The testcase is:

foo.c:

extern void bar (void);
typedef void (*func_t)(void);
int
foo (func_t f)
{
  return f == bar;
}

bar.c:

void bar (void) {};
int
main ()
{
  if (!foo (bar))
    abort ();
  return 0;
}

gcc -g -fPIC -S foo.c
gcc -shared -fPIC -o foo.sl foo.o
gcc -c -g -w bar.c
gcc -o bar bar.o foo.sl

nm foo.sl
...
00010ab0 a _GLOBAL_OFFSET_TABLE_

nm bar
...
00020c54 d _GLOBAL_OFFSET_TABLE_

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Ok, ld is broken in the binutils CVS head.
> __canonicalize_funcptr_for_compare doesn't load the correct address
> for _GLOBAL_OFFSET_TABLE_ in shared libraries.  It loads the address
> used by main.  As a result, it thinks the plabel for the function
> has been resolved ;(

Found it:

2004-11-02  Hans-Peter Nilsson  <hp@axis.com>

        * elflink.c (_bfd_elf_create_got_section): Hide _GLOBAL_OFFSET_TABLE_.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Mar 05, 2005 at 10:34:18AM +0000, Joel Soete wrote:
> The snow let me play a bit and the test pass as well as previously as far 
> as my c110 is a 32bit and so not affected by my mistake.
> btw what's up of __LP64__ and CONFIG_64BIT ?

Use CONFIG_64BIT. The cc dependencies will catch when if one wants
to re-use the same tree for different builds.

> I just attached the last udiff file to allow others to test it eventually 
> on 64bit model :-)

shouldn't matter if a system has 32 or 64bit kernel for these changes.
I've committed the "diff4" patch.

thanks,
grant
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On Sat, Mar 05, 2005 at 07:22:27PM -0500, John David Anglin wrote:
> > Ok, ld is broken in the binutils CVS head.
> > __canonicalize_funcptr_for_compare doesn't load the correct address
> > for _GLOBAL_OFFSET_TABLE_ in shared libraries.  It loads the address
> > used by main.  As a result, it thinks the plabel for the function
> > has been resolved ;(
> 
> Found it:
> 
> 2004-11-02  Hans-Peter Nilsson  <hp@axis.com>
> 
>         * elflink.c (_bfd_elf_create_got_section): Hide _GLOBAL_OFFSET_TABLE_.

I'd seen that fly by on binutils and it caused a certain amount of grief
in glibc. I'm not quite sure what the rational was behind hiding _GOT_.

c.

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> > 2004-11-02  Hans-Peter Nilsson  <hp@axis.com>
> > 
> >         * elflink.c (_bfd_elf_create_got_section): Hide _GLOBAL_OFFSET_TABLE_.
> 
> I'd seen that fly by on binutils and it caused a certain amount of grief
> in glibc. I'm not quite sure what the rational was behind hiding _GOT_.

I believe that the idea was that main code would see its _GOT_ address
and shared libraries their respective _GOT_ address.  It turns out that
it was sort of a fluke that function pointer canonicalization worked.
Only function pointers in the main part of an application are not
resolved.  Shared library function pointers are resolved when the
library is loaded.  __cffc was always looking at the _GOT_ address
for the main app (i.e., the main _GLOBAL_OFFSET_TABLE_ value overrode
the shared library symbol).

This problem was fixed yesterday by Alan Modra.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Mar 05, 2005 at 03:33:20PM -0500, John David Anglin wrote:
> > > I think we have somehow broken __cffc.  I did a binutils build
> > > yesterday and various ld tests are now failing.  These are tests
> > > that compare function pointers.
> > 
> > I didn't feed anything new into debian-glibc. All my patches have always
> > strived to keep __cffc working, if I messup the function pointer
> > comparison I get a slew of glibc testsuite failures which I always
> > patchup by making sure __cffc works :)
> 
> I haven't touched fptr.c either, although there is a change in GCC
> 4.0 with respect to canonicalization.  I'm using the debian glibc,
> 2.3.2.ds1-20, on the system on which I noticed this problem.

I'm heavily leaning towards the addition/transition to OPD's for even
the 32-bit code. I wrote a document somewhere about handling that
transition transparently from the point of view of binutils/glibc.

I don't quite understand how to transition the use of __cffc in gcc over
to some sort of "simple compare."

I'll rustle up that document at some point. Right now I'm finding time
to finish testing the LA patches for glibc and move on to binutils
again.

As for the stdc++ failures, I'm not sure yet what causes them. Perhaps
I'll kick off a build.

c.

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On Tue, Mar 08, 2005 at 12:44:53PM -0500, John David Anglin wrote:
> > > 2004-11-02  Hans-Peter Nilsson  <hp@axis.com>
> > > 
> > >         * elflink.c (_bfd_elf_create_got_section): Hide _GLOBAL_OFFSET_TABLE_.
> > 
> > I'd seen that fly by on binutils and it caused a certain amount of grief
> > in glibc. I'm not quite sure what the rational was behind hiding _GOT_.
> 
> I believe that the idea was that main code would see its _GOT_ address
> and shared libraries their respective _GOT_ address.  It turns out that
> it was sort of a fluke that function pointer canonicalization worked.
> Only function pointers in the main part of an application are not
> resolved.  Shared library function pointers are resolved when the
> library is loaded.  __cffc was always looking at the _GOT_ address
> for the main app (i.e., the main _GLOBAL_OFFSET_TABLE_ value overrode
> the shared library symbol).
> 
> This problem was fixed yesterday by Alan Modra.

I'm not sure what you mean in your statement "shared library function
pointers are resolved when the library is loaded?" The function pointers
exist as two-byte entries in the PLT, and are non-unique, and they
aren't resolved until call time with lazy resolution.

I would imagine that the main _GOT_ is supposed to override the shared
library _GOT_. __cffc is only looking at the _GOT_ to get the fptr that
the dynamic loader wrote there during setup, so that it can get called
for symbol resolution. This setup is done for all objects, which
includes all the _GOT_'s, from the application to all the loaded shared
libraries.

Or rather are you saying, that from a shared library, the library saw
only the _GOT_ from the main applicaiton? I would think that this 
wouldn't effect the library since the loader setup r19 properly, and
aslong as it doesn't use _GOT_ then it's fine.

c.

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> > This problem was fixed yesterday by Alan Modra.
> 
> I'm not sure what you mean in your statement "shared library function
> pointers are resolved when the library is loaded?" The function pointers
> exist as two-byte entries in the PLT, and are non-unique, and they
> aren't resolved until call time with lazy resolution.

This is what Alasn said:

  I checked.  &_GLOBAL_OFFSET_TABLE_ in fptr.c does resolve to the main
  app GOT before the change.  That in fact is what is needed, because
  according to what I see in dl-machine.h, plabels in shared libs will be
  resolved.  I think it's only plabels in the main app for global
  functions that won't be resolved (because they point into the plt).

  Hmm.  If PLABEL32 relocs in the main app were emitted as dynamic relocs,
  then ld.so would call _dl_make_fptr for them.  I think you wouldn't need
  __canonicalize_funcptr_for_compare any more..

I don't think we could completely do away with __cffc but if the
plabels were always resolved we could just look inside the plabel
to get the function address.

> I would imagine that the main _GOT_ is supposed to override the shared
> library _GOT_. __cffc is only looking at the _GOT_ to get the fptr that
> the dynamic loader wrote there during setup, so that it can get called
> for symbol resolution. This setup is done for all objects, which
> includes all the _GOT_'s, from the application to all the loaded shared
> libraries.

If the dynamic loader always uses the main app's got for the trampoline,
__cffc would work for plabels in shared libraries that used lazy linking.

> Or rather are you saying, that from a shared library, the library saw
> only the _GOT_ from the main applicaiton? I would think that this 
> wouldn't effect the library since the loader setup r19 properly, and
> aslong as it doesn't use _GOT_ then it's fine.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] OPD's on hppa-linux,
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On Tue, Mar 08, 2005 at 02:02:33PM -0500, John David Anglin wrote:
> > > This problem was fixed yesterday by Alan Modra.
> > 
> > I'm not sure what you mean in your statement "shared library function
> > pointers are resolved when the library is loaded?" The function pointers
> > exist as two-byte entries in the PLT, and are non-unique, and they
> > aren't resolved until call time with lazy resolution.

Once, we start quoting Alan, I believe it's time to atleast let him read
some of the remarks. Perhaps he will have some insightful comment.
 
> This is what Alasn said:
> 
>   I checked.  &_GLOBAL_OFFSET_TABLE_ in fptr.c does resolve to the main
>   app GOT before the change.  That in fact is what is needed, because
>   according to what I see in dl-machine.h, plabels in shared libs will be
>   resolved.  I think it's only plabels in the main app for global
>   functions that won't be resolved (because they point into the plt).
> 
>   Hmm.  If PLABEL32 relocs in the main app were emitted as dynamic relocs,
>   then ld.so would call _dl_make_fptr for them.  I think you wouldn't need
>   __canonicalize_funcptr_for_compare any more..
> 
> I don't think we could completely do away with __cffc but if the
> plabels were always resolved we could just look inside the plabel
> to get the function address.

Perhaps some background and clarification...

Okay, *ABS* (R_PARISC_IPLT, r_sym == 0) entries are automatically
relocated at startup, because we have enough information, we are already
walking the PLT list, and it takes only a single add to complete the
relocation. 

Next, anything else (R_PARISC_IPLT, r_sym != 0) is pointed at the
plt/got stub (which calls the trampoline _dl_runtime_resolve) since it
will require symbol resolution to fixup.

I don't quite understand what Alan is getting at when he says "If
PLABEL32 relocs in the main app were emitted as dynamic relocs,"

I'm really a stickler for nomeclature. In my mind a "resolved" plabel is
one whose ip/gp point to the true and final function address after the ELF
symbol resolution rules have been followed for that symbol. Is this the
generally accepted definition? I interchangably think plabel == fptr.

> > I would imagine that the main _GOT_ is supposed to override the shared
> > library _GOT_. __cffc is only looking at the _GOT_ to get the fptr that
> > the dynamic loader wrote there during setup, so that it can get called
> > for symbol resolution. This setup is done for all objects, which
> > includes all the _GOT_'s, from the application to all the loaded shared
> > libraries.
> 
> If the dynamic loader always uses the main app's got for the trampoline,
> __cffc would work for plabels in shared libraries that used lazy linking.

To clarify this, you mean to say if the loader always uses the main
app's plt/got stub then everything would be okay. The check in __cffc to
see if the plabel has been resolved would work (e.g. got !=
&_GLOBAL_OFFSET_TABLE_).

It didn't make a difference in the past because the shared library
plabels were already resolved? Wouldn't this mean that lazy linking
wasn't working at all?

So only the main app symbols had to be resolved, and this worked fine.
Thus the comparison worked fine.

I don't quite understand why this broke, if someone would be so kind as
the point out the error in my thinking.

c.

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Subject: [parisc-linux] Re: OPD's on hppa-linux,
	and what to do about __cffc's fragility.
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> I'm really a stickler for nomeclature. In my mind a "resolved" plabel is
> one whose ip/gp point to the true and final function address after the ELF
> symbol resolution rules have been followed for that symbol. Is this the
> generally accepted definition? I interchangably think plabel == fptr.

I agree with the former definition regarding a resolved plabel.  I believe
that the term plabel is interchangeable with the term function descriptor.
A function pointer on the otherhand may point either directly to the
code address of the function or to a plabel.

> > > I would imagine that the main _GOT_ is supposed to override the shared
> > > library _GOT_. __cffc is only looking at the _GOT_ to get the fptr that
> > > the dynamic loader wrote there during setup, so that it can get called
> > > for symbol resolution. This setup is done for all objects, which
> > > includes all the _GOT_'s, from the application to all the loaded shared
> > > libraries.
> > 
> > If the dynamic loader always uses the main app's got for the trampoline,
> > __cffc would work for plabels in shared libraries that used lazy linking.
> 
> To clarify this, you mean to say if the loader always uses the main
> app's plt/got stub then everything would be okay. The check in __cffc to
> see if the plabel has been resolved would work (e.g. got !=
> &_GLOBAL_OFFSET_TABLE_).

Yes.

> It didn't make a difference in the past because the shared library
> plabels were already resolved? Wouldn't this mean that lazy linking
> wasn't working at all?

If shared libraries used the main app's &_GLOBAL_OFFSET_TABLE_, then
lazy linking could be working.   The testcase that I posted had a
plabel constructor in the shared library.  I recall now that the got
pointer for the plabel was the main app's &_GLOBAL_OFFSET_TABLE_.

> I don't quite understand why this broke, if someone would be so kind as
> the point out the error in my thinking.

Hiding _GLOBAL_OFFSET_TABLE_, resulted in _GLOBAL_OFFSET_TABLE_
being local to shared libraries, as a result __cffc no longer used
the main app's &_GLOBAL_OFFSET_TABLE_.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: [parisc-linux] Re: OPD's on hppa-linux,
	and what to do about __cffc's fragility.
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> A function pointer on the otherhand may point either directly to the
> code address of the function or to a plabel.

Further, there are some special function pointers like -1.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Alan Modra <amodra@bigpond.net.au>
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Subject: [parisc-linux] Re: OPD's on hppa-linux,
	and what to do about __cffc's fragility.
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On Tue, Mar 08, 2005 at 04:08:51PM -0500, Carlos O'Donell wrote:
> On Tue, Mar 08, 2005 at 02:02:33PM -0500, John David Anglin wrote:
> > > > This problem was fixed yesterday by Alan Modra.
> > > 
> > > I'm not sure what you mean in your statement "shared library function
> > > pointers are resolved when the library is loaded?" The function pointers
> > > exist as two-byte entries in the PLT, and are non-unique, and they
> > > aren't resolved until call time with lazy resolution.

No, in an hppa-linux shared lib, a function pointer is accessed via a
word with a PLABEL32 reloc on it.  This reloc is processed before any
code in the shared lib runs, to point to a function descriptor created
by _dl_make_fptr.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre
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> 
> On Tue, Mar 08, 2005 at 05:53:18PM +0100, Joel Soete wrote:
> > 
> > > The kernel-image-2.6.8-32 from the debian pool didnt recognize ext3=

> > > filesystem.
> > >
> > May be interesting that you feel in a bug report?
> >
> 
> Please don't suggest this to people. In every case I've seen, it's
> because they were doing something stupid, and you're just making more
> work for me if they file bugs.

Right; my bad I would have to check pkg first ;-)

Appologies (i will take care)

Joel


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] BUG sym2 hangs on non-existant Target
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Xref: news.gmane.org gmane.linux.ports.parisc:22414

Willy,
2.6.11-pa2 is hanging after sym2 spews some unusual messages.
console output appended.

This is an a500 (riot) connected to an Ultra2 SC10 (A5273A).
There are only disk devices 0-3 and 8-13. 14 is the enclosure controller.
There is no 15 and apperently sym2 thinks there is.
It aborts, resets the bus, aborts, resets the bus, then hangs.
I let it set there for 5+ minutes.
console is non-responsive - only GSP is still talking.

Let me know which debug options I should hand sym2 and
I can collect those tonight/tomorrow.

grant


Firmware Version  43.50

Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------
   (c) Copyright 1995-2002, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      650  MHz   Active                 Functional         750 KB 1.5 MB
      1      650  MHz   Idle                   Functional         750 KB 1.5 MB

  Central Bus Speed (in MHz)  :        120  
  Available Memory            :    4194304  KB
  Good Memory Required        : Not initialized. Defaults to 32 MB. 

   Primary boot path:    0/0/1/1.15          
   Alternate boot path:  0/0/2/1.15          
   Console path:         0/0/4/1.643         
   Keyboard path:        0/0/4/0.0           


---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > bo
Interact with IPL (Y, N, or Cancel)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.5 root@c3k Fri May 14 16:17:38 MDT 2004

Partition Start(MB) End(MB) Id Type
1               1     191   f0 Palo
2             192    1526   82 swap
3            1527   17546   83 ext2

PALO(F0) partition contains:
PALO is formatted EXT2/3Current command line:
1/vmlinux-2.6.11-pa2 noudev root=/dev/sda3 HOME=/ console=ttyS0 TERM=linux
 0: 1/vmlinux-2.6.11-pa2
 1: noudev
 2: root=/dev/sda3
 3: HOME=/
 4: console=ttyS0
 5: TERM=linux

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? 2
root=/dev/sdk3
Current command line:
1/vmlinux-2.6.11-pa2 noudev root=/dev/sdk3 HOME=/ console=ttyS0 TERM=linux
 0: 1/vmlinux-2.6.11-pa2
 1: noudev
 2: root=/dev/sdk3
 3: HOME=/
 4: console=ttyS0
 5: TERM=linux

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? b

Command line for kernel: 'noudev root=/dev/sdk3 HOME=/ console=ttyS0 TERM=linux palo_kernel=1/vmlinux-2.6.11-pa2'
Selected kernel: /vmlinux-2.6.11-pa2 from partition 1
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4217472 mediaptr 0x1000
Segment 1 load 00508000 size 302032 mediaptr 0x407000
Segment 2 load 00554000 size 290792 mediaptr 0x451000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.11-pa2 (grundler@riot) (gcc version 3.4.4 20041218 (prerelease) (Debian 3.4.3-6)) #1 SMP Mon Mar 7 22:21:58 PST 2005
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00005e20 00000491 00000000 00000001 6de785ee 100000f0 00000008 000000b2 000000b2
vers  00000203
CPUID vers 19 rev 8 (0x00000268)
capabilities 0x5
model 9000/800/A500-6X
Memory Ranges:
 0) Start 0x0000000000000000 End 0x00000000efffffff Size   3840 Mb
 1) Start 0x00000010f0000000 End 0x00000010ffffffff Size    256 Mb
Total Memory: 4096 Mb
SMP: bootstrap CPU ID is 0
Built 2 zonelists
Kernel command line: noudev root=/dev/sdk3 HOME=/ console=ttyS0 TERM=linux palo_kernel=1/vmlinux-2.6.11-pa2
PID hash table entries: 4096 (order: 12, 131072 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
Memory: 4194304k available
Mount-cache hash table entries: 256 (order: 0, 4096 bytes)
Brought up 1 CPUs
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Crescendo 650 W2 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5e2, 0x00004 }
2. Crescendo 650 W2 at 0xfffffffffffa2000 [162] { 0, 0x0, 0x5e2, 0x00004 }
3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x09b, 0x00009 }
4. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
5. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
7. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
8. Elroy PCI Bridge at 0xfffffffffed3c000 [0/6] { 13, 0x0, 0x782, 0x0000a }
Enabling PDC_PAT chassis codes support.

********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
 (0x5) found at 0xfffffffffed34000
LBA version TR4.0 (0x5) found at 0xfffffffffed38000
LBA version TR4.0 (0x5) found at 0xfffffffffed3c000
SCSI subsystem initialized
unwind_init: start = 0x103ef480, end = 0x1040ae40, entries = 7068
Performance monitoring counters enabled for Crescendo 650 W2
Initializing Cryptographic API
PDC Stable Storage facility v0.09
Soft power switch support not available.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 17 ports, IRQ sharing enabled
ttyS0 at MMIO 0xfffffffff8000000 (irq = 22) is a 16550A
ttyS1 at MMIO 0xfffffffff8000008 (irq = 22) is a 16450
ttyS2 at MMIO 0xfffffffff8000010 (irq = 22) is a 16550A
ttyS3 at MMIO 0xfffffffff8000030 (irq = 22) is a 16550A
ttyS4 at MMIO 0xfffffffff8000038 (irq = 22) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
sym0: <896> rev 0x7 at pci 0000:00:01.0 irq 19
sym0: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.0
  Vendor: SEAGATE   Model: ST318203LC        Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:0: tagged command queuing enabled, command queue depth 16.
 target0:0:0: Beginning Domain Validation
 target0:0:0: asynchronous.
 target0:0:0: wide asynchronous.
 target0:0:0: Domain Validation skipping write tests
 target0:0:0: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
 target0:0:0: Ending Domain Validation
  Vendor: SEAGATE   Model: ST318203LC        Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:1: tagged command queuing enabled, command queue depth 16.
 target0:0:1: Beginning Domain Validation
 target0:0:1: asynchronous.
 target0:0:1: wide asynchronous.
 target0:0:1: Domain Validation skipping write tests
 target0:0:1: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
 target0:0:1: Ending Domain Validation
  Vendor: SEAGATE   Model: ST318203LC        Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:2: tagged command queuing enabled, command queue depth 16.
 target0:0:2: Beginning Domain Validation
 target0:0:2: asynchronous.
 target0:0:2: wide asynchronous.
 target0:0:2: Domain Validation skipping write tests
 target0:0:2: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
 target0:0:2: Ending Domain Validation
  Vendor: SEAGATE   Model: ST318203LC        Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:3: tagged command queuing enabled, command queue depth 16.
 target0:0:3: Beginning Domain Validation
 target0:0:3: asynchronous.
 target0:0:3: wide asynchronous.
 target0:0:3: Domain Validation skipping write tests
 target0:0:3: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
 target0:0:3: Ending Domain Validation
  Vendor: SEAGATE   Model: ST318203LC        Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:8: tagged command queuing enabled, command queue depth 16.
 target0:0:8: Beginning Domain Validation
 target0:0:8: asynchronous.
 target0:0:8: wide asynchronous.
 target0:0:8: Domain Validation skipping write tests
 target0:0:8: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
 target0:0:8: Ending Domain Validation
  Vendor: SEAGATE   Model: ST318203LC        Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:9: tagged command queuing enabled, command queue depth 16.
 target0:0:9: Beginning Domain Validation
 target0:0:9: asynchronous.
 target0:0:9: wide asynchronous.
 target0:0:9: Domain Validation skipping write tests
 target0:0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
 target0:0:9: Ending Domain Validation
  Vendor: SEAGATE   Model: ST318203LC        Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:10: tagged command queuing enabled, command queue depth 16.
 target0:0:10: Beginning Domain Validation
 target0:0:10: asynchronous.
 target0:0:10: wide asynchronous.
 target0:0:10: Domain Validation skipping write tests
 target0:0:10: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
 target0:0:10: Ending Domain Validation
  Vendor: SEAGATE   Model: ST318203LC        Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:11: tagged command queuing enabled, command queue depth 16.
 target0:0:11: Beginning Domain Validation
 target0:0:11: asynchronous.
 target0:0:11: wide asynchronous.
 target0:0:11: Domain Validation skipping write tests
 target0:0:11: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
 target0:0:11: Ending Domain Validation
  Vendor: SEAGATE   Model: ST318203LC        Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:12: tagged command queuing enabled, command queue depth 16.
 target0:0:12: Beginning Domain Validation
 target0:0:12: asynchronous.
 target0:0:12: wide asynchronous.
 target0:0:12: Domain Validation skipping write tests
 target0:0:12: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
 target0:0:12: Ending Domain Validation
  Vendor: SEAGATE   Model: ST318203LC        Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:13: tagged command queuing enabled, command queue depth 16.
 target0:0:13: Beginning Domain Validation
 target0:0:13: asynchronous.
 target0:0:13: wide asynchronous.
 target0:0:13: Domain Validation skipping write tests
 target0:0:13: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
 target0:0:13: Ending Domain Validation
  Vendor: HP        Model: A5272A            Rev: HP05
  Type:   Enclosure                          ANSI SCSI revision: 02
 target0:0:14: Beginning Domain Validation
 target0:0:14: asynchronous.
 target0:0:14: wide asynchronous.
 target0:0:14: Domain Validation skipping write tests
 target0:0:14: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 15)
 target0:0:14: Ending Domain Validation
sym0:15: No MSG OUT phase after selection with ATN.
 0:0:15:0: ABORT operation started.
 0:0:15:0: ABORT operation timed-out.
 0:0:15:0: DEVICE RESET operation started.
 0:0:15:0: DEVICE RESET operation timed-out.
 0:0:15:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
 0:0:15:0: BUS RESET operation complete.
sym0:15: No MSG OUT phase after selection with ATN.
 0:0:15:0: ABORT operation started.
 0:0:15:0: ABORT operation timed-out.
 0:0:15:0: HOST RESET operation started.
sym0: SCSI BUS has been reset.
[hang]
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Solution to OPD's in hppa-linux,
	including a transition plan?
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> On Fri, Mar 11, 2005 at 08:57:51AM +1030, Alan Modra wrote:
> > > In shared libraries the function pointer is also allocated a PLT slot
> > > and an IPLT relocation. 
> > > 
> > > I don't understand the reasons for the allocation of a PLT slot if all
> > > references generated go through the local label word that has the
> > > PLABEL32 reloc, which now contains the address returned by
> > > _dl_make_ftpr.
> > 
> > There probably isn't a good reason.  Blame that on me not understanding
> > what I was doing when dhd and I hacked together ld and glibc hppa-linux
> > support.
> 
> I understand why you allocate a PLT slot, because function calls seem to
> go through the PLT only without reference to the PLABEL32 word (in
> shared libraries). This saves an indirection through the PLABEL32 word
> during a call. I believe this to be what is happening, and I verfiied it
> lightly.

I believe the PLT exists to support 'LTP and 'RTP relocations.
GCC doesn't generate these relocations as this support doesn't
work under HP-UX, although the HP-UX assembler manual describes
them.  GCC generates 32-bit plabels (deferred) when it encounters
a situation where a 'LTP/'RTP sequence would be desireable.  Thus,
we may not need the PLT slot.

I don't see that a level of indirection is being saved.  We either
go through the PLABEL32 word or the PLT.

I believe that GCC always create the PLABEL32 words in the data
section (definitely true for HP-UX) so that the word can be
successfully relocated when a shared library is loaded.

> I thought about this, and you are correct. Technically if the shared
> object can do a comparison then the symbol must have been global, and
> passed into the function.

I don't think this is correct.  It's theoretically possible to pass
two function pointers that both point to local functions in one object
and have the comparison done in another (shared) object.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Wed, Mar 09, 2005 at 11:12:51AM +0000, Jan Prunk wrote:
> I managed to install 2.6.11-pa2-defconfig from parisc CVS, but i noticed 
> that default config doesnt have IPv6 enabled?
> It boots well. But I need IPv6 support, so I compiled my own kernel. It 
> would be really good in the future if IPv6 was enabled in defconfigs, so 
> that I could easily download and update the kernels.
> 
> I downloaded 2.6.11-pa2 kernel from parisc CVS, but it gave me following 
> problems when compileing:
> CC      init/version.o
>  LD      init/built-in.o
>  LD      .tmp_vmlinux1
> drivers/built-in.o(.init.text+0x2f40): In function `sti_select_fbfont':
> : undefined reference to `find_font'
> drivers/built-in.o(.init.text+0x3040): In function `sti_select_fbfont':
> : undefined reference to `get_default_font'

Ah, figured it out.  We just needed to include font.o when we have
STI_CONSOLE selected but not FRAMEBUFFER_CONSOLE.  If you do a cvs update,
you should be able to build with your current config.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Wed, Mar 09, 2005 at 08:55:13AM +1030, Alan Modra wrote:
> No, in an hppa-linux shared lib, a function pointer is accessed via a
> word with a PLABEL32 reloc on it.  This reloc is processed before any
> code in the shared lib runs, to point to a function descriptor created
> by _dl_make_fptr.

In shared libraries the function pointer is also allocated a PLT slot
and an IPLT relocation. 

I don't understand the reasons for the allocation of a PLT slot if all
references generated go through the local label word that has the
PLABEL32 reloc, which now contains the address returned by
_dl_make_ftpr.

I'm still trying to understand your earlier recommendation. Do you
suggest that the executable have PLABEL32 relocs for all the symbols,
local and global, which assures that _dl_make_fptr creates a unique OPD?

Alan, thanks for your input.

c.

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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] Runing small structs from functions.
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jda,

Currently the changes in the LA code for glibc mean that _dl_fixup
returns a small struct (function descriptor) to the trampoline.

Is it safe to assume that the small struct is always returned on ret0
and ret1? I ran some test programs and that seemed to be the case.

Cheers,
Carlos.

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> Currently the changes in the LA code for glibc mean that _dl_fixup
> returns a small struct (function descriptor) to the trampoline.
> 
> Is it safe to assume that the small struct is always returned on ret0
> and ret1? I ran some test programs and that seemed to be the case.

This "should" work with 3.3 and later.  In previous versions, the
justification was wrong and possibly 5-8 byte structs were not
returned in ret0/ret1.  There is an incorrect code PR for a struct
with three shorts.  I believe this problem is fixed in GCC 4.0 and
later.  It would be safer if you explicitly pad the structs to 4
or 8 bytes.  I can't remember if old versions of GCC return 5-8
byte structs in ret0/ret1.  There was definitely a justification
problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Alan Modra <amodra@bigpond.net.au>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: OPD's on hppa-linux,
	and what to do about __cffc's fragility.
Date: Fri, 11 Mar 2005 08:57:51 +1030
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To: Carlos O'Donell <carlos@baldric.uwo.ca>
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On Thu, Mar 10, 2005 at 10:31:20AM -0500, Carlos O'Donell wrote:
> On Wed, Mar 09, 2005 at 08:55:13AM +1030, Alan Modra wrote:
> > No, in an hppa-linux shared lib, a function pointer is accessed via a
> > word with a PLABEL32 reloc on it.  This reloc is processed before any
> > code in the shared lib runs, to point to a function descriptor created
> > by _dl_make_fptr.
> 
> In shared libraries the function pointer is also allocated a PLT slot
> and an IPLT relocation. 
> 
> I don't understand the reasons for the allocation of a PLT slot if all
> references generated go through the local label word that has the
> PLABEL32 reloc, which now contains the address returned by
> _dl_make_ftpr.

There probably isn't a good reason.  Blame that on me not understanding
what I was doing when dhd and I hacked together ld and glibc hppa-linux
support.

> I'm still trying to understand your earlier recommendation. Do you
> suggest that the executable have PLABEL32 relocs for all the symbols,
> local and global, which assures that _dl_make_fptr creates a unique OPD?

I was really just thinking of global symbols.  If ld handles descriptors
for locals, you save on dynamic relocs and program startup time.  I
haven't spent a great deal of time thinking about it though, so it's
highly likely that there is some reason why it won't work.  eg. You
wouldn't want dynamic plabel relocs to appear in read-only sections.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Re: Runing small structs from functions.
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> This "should" work with 3.3 and later.  In previous versions, the
> justification was wrong and possibly 5-8 byte structs were not
> returned in ret0/ret1.  There is an incorrect code PR for a struct
> with three shorts.  I believe this problem is fixed in GCC 4.0 and
> later.  It would be safer if you explicitly pad the structs to 4
> or 8 bytes.  I can't remember if old versions of GCC return 5-8
> byte structs in ret0/ret1.  There was definitely a justification
> problem.

gcc-3.3 also returns <=8 bytes structs in ret0/ret1. there are lots of
gdb test cases to verify this.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: Re: [parisc-linux] Re: Runing small structs from functions.
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> gcc-3.3 also returns <=8 bytes structs in ret0/ret1. there are lots of
> gdb test cases to verify this.

Right, the ABI fix in the PA backend was made in 3.3.  I was referring
to earlier versions.  As noted in my previous message, there still
are issues with small structs in 3.3.  See this PR:
<http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18956>.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:22423

Hello pa,

I was interested by xfs pb related by Grant and GMSoft and I reach to als=
o
obtain a corupted xfs (on a disk slice over which a reading dd doesn't se=
ems
to encounter any pb).

On my b180 running a 2.6.11-pa2 (cvs dated 20050310) with xfs builtin, th=
e
error is always the same:
XFS mounting filesystem sdd1
attempt to access beyond end of device
sdd1: rw=3D0, want=3D3130210928, limit=3D4098200
I/O error in filesystem ("sdd1") meta-data dev sdd1 block 0xba933a68    
  ("xfs_trans_read_buf") error 5 buf count 4096

>>here xfs_check ...
>> then remount and make menuconfig

XFS mounting filesystem sdd1
attempt to access beyond end of device
sdd1: rw=3D0, want=3D3130110864, limit=3D4098200
I/O error in filesystem ("sdd1") meta-data dev sdd1 block 0xba91b388    
  ("xfs_trans_read_buf") error 5 buf count 4096

>> here xfs_repair ...
>> then same remount and make menuconfig

XFS mounting filesystem sdd1
attempt to access beyond end of device
sdd1: rw=3D0, want=3D3130110864, limit=3D4098200
I/O error in filesystem ("sdd1") meta-data dev sdd1 block 0xba91b388    
  ("xfs_trans_read_buf") error 5 buf count 4096
...

this pb seems to be reproducible on D270, c3600 and b180 (all 32bit).

Is it the same with a 64bit kernel as for a A model?

mmm I thought first to a xfs pb when I remember that I encountered (but o=
nly
one time on only one 32bit system) a similar message with a ext3 (/var) o=
n
another b180 running another  2.6.11-pa1:
attempt to access beyond end of device
md3: rw=3D0, want=3D336860182, limit=3D511744
EXT3-fs error (device md3): ext3_free_branches: Read failure, inode=3D122=
11,
block=3D168430090
Aborting journal on device md3.
ext3_abort called.
EXT3-fs error (device md3): ext3_journal_start_sb: Detected aborted journ=
al
Remounting filesystem read-only
EXT3-fs error (device md3) in start_transaction: Journal has aborted
EXT3-fs error (device md3) in start_transaction: Journal has aborted
EXT3-fs error (device md3) in start_transaction: Journal has aborted
attempt to access beyond end of device
md3: rw=3D0, want=3D1961286348, limit=3D511744
EXT3-fs error (device md3): ext3_free_branches: Read failure, inode=3D122=
11,
block=3D980643173
attempt to access beyond end of device
md3: rw=3D0, want=3D3906093258, limit=3D511744
EXT3-fs error (device md3): ext3_free_branches: Read failure, inode=3D122=
11,
block=3D1953046628
attempt to access beyond end of device
md3: rw=3D0, want=3D3535458028, limit=3D511744
EXT3-fs error (device md3): ext3_free_branches: Read failure, inode=3D122=
11,
block=3D1767729013
attempt to access beyond end of device
md3: rw=3D0, want=3D3068543198, limit=3D511744
EXT3-fs error (device md3): ext3_free_branches: Read failure, inode=3D122=
11,
block=3D1534271598
attempt to access beyond end of device
...
attempt to access beyond end of device
md3: rw=3D0, want=3D3465680116, limit=3D511744
EXT3-fs error (device md3): ext3_free_branches: Read failure, inode=3D122=
11,
block=3D1732840057
attempt to access beyond end of device
md3: rw=3D0, want=3D3772833498, limit=3D511744
EXT3-fs error (device md3): ext3_free_branches: Read failure, inode=3D122=
11,
block=3D1886416748
attempt to access beyond end of device
md3: rw=3D0, want=3D3428729052, limit=3D511744
EXT3-fs error (device md3): ext3_free_branches: Read failure, inode=3D122=
11,
block=3D1714364525
attempt to access beyond end of device
md3: rw=3D0, want=3D3739535560, limit=3D511744
EXT3-fs error (device md3): ext3_free_branches: Read failure, inode=3D122=
11,
block=3D1869767779
attempt to access beyond end of device
md3: rw=3D0, want=3D1581312222, limit=3D511744
EXT3-fs error (device md3): ext3_free_branches: Read failure, inode=3D122=
11,
block=3D790656110
ext3_reserve_inode_write: aborting transaction: Journal has aborted in __=
ext3_journal_get_write_access<2>EXT3-fs
error (device md3)dext3_reserve_inode_write: aborting transaction: Journa=
l
has aborted in __ext3_journal_get_write_access<2>EXT3-fs error (device md=
3)dEXT3-fs
error (device md3) in ext3_orphan_del: Journal has aborted
EXT3-fs error (device md3) in ext3_truncate: Journal has aborted
__journal_remove_journal_head: freeing b_committed_data

But here it seems that a fsck was enough to help the system to work again=

for 3 day without any new error messages
(let see after the w-e, ...)

Are they well related pb or completely seperated?
If well related, which code trunk is/are common to xfs and ext3?

Any idea?

Thanks in advance,
    Joel


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On Fri, Mar 11, 2005 at 05:49:31PM +1000, Douglas Gilbert wrote:
> >The problem is with the asm/unistd.h header file that comes from
> >the debian kernel-headers-2.4.26 package.

I think I'm wrong about this - I should be using "linux-kernel-headers"
package like on gsyprf3. Below is more analysis on the problem.

Bottomline: My guess is we could modify asm-parisc syscall
  to be "-std=c99" friendly. I'd like to hear other peoples
  opinions on that.

> >Linue 46 of llseek.c is static decl of _syscall5
> >and that collides with the "#define _syscall5"
> >in asm/unistd.h. The same #define is in our current 2.6 kernel
> >(see gsyprf11:/usr/src/linux-2.6/include/asm/unistd.h).
> >All the asm-*/unistd.h have this #define. 

...and _syscall5 is just a "victim".

> Grant,
> Thanks for picking that up. That llseek.c has an "asm"
> keyword in it which isn't kosher C90 nor C99 . So the
> "-pendantic" adds some warnings and the "-std=c99"
> promotes them into errors.

Hrm...I've generated the pre-processed file on
	gsyprf11:/usr/src/sg3_utils-1.13/llseek.P

The offending code is coming from K_INLINE_SYSCALL() macro
that's defined in asm/unistd.h.
I expect Line 1754 is the offending one.
I've reformatted below so it's readable:

static int _llseek(unsigned int fd, unsigned long offset_high,
	 unsigned long offset_low, llse_loff_t * result, unsigned int origin)
{
	return (
	{ unsigned long __sys_res;
	{ register unsigned long __res asm("r28");
	register unsigned long __r22 __asm__("r22") = (unsigned long)origin;
	register unsigned long __r23 __asm__("r23") = (unsigned long)result;
	register unsigned long __r24 __asm__("r24") = (unsigned long)offset_low;
	register unsigned long __r25 __asm__("r25") = (unsigned long)offset_high;
	register unsigned long __r26 __asm__("r26") = (unsigned long)fd;
	asm volatile(	"ble  0x100(%%sr2, %%r0)\n\t"
			" ldi %1, %%r20"
			: "=r" (__res)
			: "i" ((0 + 140)) , "r" (__r26), "r" (__r25), 
				"r" (__r24), "r" (__r23), "r" (__r22) );
	__sys_res = __res;
	}
	if (__sys_res >= (unsigned long)-4095) {
		(*__errno_location ()) = -__sys_res;
		 __sys_res = (unsigned long)-1;
	}
	__sys_res;
	}
	);
} 

If "asm" is the only offending bit, can that be fixed in the kernel
header files and/or submit a patch against glibc header files so
that future releases can be compiled with "-std=c99"?

Looking at code in llseek.c inside the #ifdef __linux__, a few things
strike me as odd:
o None of the architectures in recent 2.4 or 2.6 kernel define HAVE_LLSEEK.
  This looks obsolete because all linux arches support llseek now.

o Why the #if alpha || ia64 || s390x to use a private my_llseek wrapper?
  "my_llseek" also seems obsolete like HAVE_LLSEEK.
  Are they the only ones to NOT define llseek because they only have
  64-bit user space? (ie lseek is a synonym to llseek for those three?)

  FWIW,  I added defined(__hppa__) to the #if and it properly linked.
  sg_dd seems to work correctly but I'm certain I'm not excercising the
  code properly (e.g. testing syscall restart) or able to verify the results.
  And I've also not tested on older (2.4) kernels where other things
  might be broken.


> I built the latest util-linux
> on gsyprf11 (llssek.c is in the fdisk directory) and it
> went ok (until I added "-std=c99" to llseek.c's compile
> line).

ok. But I still wonder if parisc port needs to change anything.

> Just rolling two new versions:
>    sg3_utils-1.13.tgz    [without "-pedantic -std=c99"]
>    sg3_utils-1.13-pedantic.tgz  [with "     "]
> 
> They will be on gsyprf3 (which has no problem with llseek.c)
> + gsyprf11 shortly.

AFAICT, gsyprf3 builds/links fine because my_llseek gets used
instead of unistd.h.

hth,
grant
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On Fri, Mar 11, 2005 at 08:57:51AM +1030, Alan Modra wrote:
> > In shared libraries the function pointer is also allocated a PLT slot
> > and an IPLT relocation. 
> > 
> > I don't understand the reasons for the allocation of a PLT slot if all
> > references generated go through the local label word that has the
> > PLABEL32 reloc, which now contains the address returned by
> > _dl_make_ftpr.
> 
> There probably isn't a good reason.  Blame that on me not understanding
> what I was doing when dhd and I hacked together ld and glibc hppa-linux
> support.

I understand why you allocate a PLT slot, because function calls seem to
go through the PLT only without reference to the PLABEL32 word (in
shared libraries). This saves an indirection through the PLABEL32 word
during a call. I believe this to be what is happening, and I verfiied it
lightly.

I went through the sources again, and you made some argument in a
comment about passing "local function pointers" to other objects.

The only way to verify my ideas is to run some tests, so here is the
apparent summary.

- Executable passes local function pointer to shared object.
 = Passes the address of the PLT entry.
 = PLT entry has IPLT reloc.

- Shared object passes local function pointer to other shared object.
 = Passes the address of *(PLABEL32 word) which points to a fdesc
   made by _dl_make_fptr.
 = The PLABEL32 word has a PLABEL32 reloc.

- Shared object calls a local or global function.
 = Calls through the PLT, which has an IPLT reloc.

- Executable calls local function.
 = Jumps directly to address.

- Executable calls global function.
 = Uses dyncall on the address of hte PLT
 = PLT has IPLT reloc.

> > I'm still trying to understand your earlier recommendation. Do you
> > suggest that the executable have PLABEL32 relocs for all the symbols,
> > local and global, which assures that _dl_make_fptr creates a unique OPD?
> 
> I was really just thinking of global symbols.  If ld handles descriptors
> for locals, you save on dynamic relocs and program startup time.  I
> haven't spent a great deal of time thinking about it though, so it's
> highly likely that there is some reason why it won't work.  eg. You
> wouldn't want dynamic plabel relocs to appear in read-only sections.

I thought about this, and you are correct. Technically if the shared
object can do a comparison then the symbol must have been global, and
passed into the function.

How do I do this in a backwards compatible way?

Action
=======
If we emit a PLABEL32 reloc for all global symbols in the executable,
baring relocs in read-only sections, which I'm sure shared libraries
have the same problems, then the executable passes the address stored
in the plabel word.

Case 1:
=======
For these new executables gcc will not generate __cffc comparisons.
For new libraries gcc will not generate __cffc comparisons.

Case 2:
=======
Old executables will still pass the address of the plt entry, and
comparisons in new shared libraries will fail.

Case 3:
=======
New executables and old shared libraries will work just fine, since
__cffc will think that everything has been resolved properly and just
do comparison.

Fixes:
======
Transition all executables to use PLABEL32 relocs for global symbols,
the same as shared libraries. Keep gcc generating __cffc.
One day when all the executables have been rebuilt, we can start turning
off the generation of __cffc and "Case 2" will fail, but hopefully we
have transitioned away from that happening.

Thoughts?

Cheers,
Carlos.

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On Fri, Mar 11, 2005 at 10:39:38AM -0500, John David Anglin wrote:
> > gcc-3.3 also returns <=8 bytes structs in ret0/ret1. there are lots of
> > gdb test cases to verify this.
> 
> Right, the ABI fix in the PA backend was made in 3.3.  I was referring
> to earlier versions.  As noted in my previous message, there still
> are issues with small structs in 3.3.  See this PR:
> <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18956>.

Since this code only *ever* returns a "struct fdesc" which is two word
sized entries aligned by the compiler, I always get "ip" in ret0 and
"gp" in ret1. So this is a very particular case of passing a small
struct by value.

c.

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> > hiauly6 4.0.0:
> > FAIL: 27_io/basic_filebuf/sgetn/char/1-in.cc execution test
> 
> This fail is caused by a bug in ioctl when using a 32-bit kernel.
> I've attached a little test program below that demonstrates the problem.
> sgetn.txt can be found in libstdc++-v3/testsuite/data/sgetn.txt but
> I think any file will do.  num is still 0 after the ioctl call.

I think the attached patch is what we should do; the problem is that we
are trying to put a 64-bit quantity (loff_t) into an int *, and we end
up only storing the top bits. (see fs/ioctl.c for details)

Is this the right thing to do? Do we need something similar for
get_user()?

Tested on 32-bit and 64-bit (thanks Kyle!)

randolph

Index: include/asm-parisc/uaccess.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/uaccess.h,v
retrieving revision 1.18
diff -u -p -r1.18 uaccess.h
--- include/asm-parisc/uaccess.h	21 Feb 2005 16:40:53 -0000	1.18
+++ include/asm-parisc/uaccess.h	13 Mar 2005 00:50:41 -0000
@@ -147,22 +147,23 @@ struct exception_data {
 #define __put_user(x,ptr)                                       \
 ({								\
 	register long __pu_err __asm__ ("r8") = 0;      	\
+        __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x);	\
 								\
 	if (segment_eq(get_fs(),KERNEL_DS)) {                   \
 	    switch (sizeof(*(ptr))) {                           \
-	    case 1: __put_kernel_asm("stb",x,ptr); break;       \
-	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
-	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
-	    case 8: STD_KERNEL(x,ptr); break;			\
+	    case 1: __put_kernel_asm("stb",__x,ptr); break;     \
+	    case 2: __put_kernel_asm("sth",__x,ptr); break;     \
+	    case 4: __put_kernel_asm("stw",__x,ptr); break;     \
+	    case 8: STD_KERNEL(__x,ptr); break;			\
 	    default: __put_kernel_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 	else {                                                  \
 	    switch (sizeof(*(ptr))) {                           \
-	    case 1: __put_user_asm("stb",x,ptr); break;         \
-	    case 2: __put_user_asm("sth",x,ptr); break;         \
-	    case 4: __put_user_asm("stw",x,ptr); break;         \
-	    case 8: STD_USER(x,ptr); break;			\
+	    case 1: __put_user_asm("stb",__x,ptr); break;       \
+	    case 2: __put_user_asm("sth",__x,ptr); break;       \
+	    case 4: __put_user_asm("stw",__x,ptr); break;       \
+	    case 8: STD_USER(__x,ptr); break;			\
 	    default: __put_user_bad(); break;			\
 	    }                                                   \
 	}                                                       \
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>  	register long __pu_err __asm__ ("r8") = 0;      	\
> +        __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x);	\

This is an improvement as long as the ioctl handling checks that
the loff_t value can be successfully truncated.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Another thing that I need to figure out is the cause of the libstdc++
> fails:
> 
> hiauly6 4.0.0:
> FAIL: 27_io/basic_filebuf/sgetn/char/1-in.cc execution test

This fail is caused by a bug in ioctl when using a 32-bit kernel.
I've attached a little test program below that demonstrates the problem.
sgetn.txt can be found in libstdc++-v3/testsuite/data/sgetn.txt but
I think any file will do.  num is still 0 after the ioctl call.

> gsyprf11 4.1.0:
> FAIL: 22_locale/messages/members/char/1.cc execution test
> FAIL: 22_locale/messages/members/char/2.cc execution test
> FAIL: 22_locale/messages/members/char/wrapped_env.cc execution test
> FAIL: 22_locale/messages/members/char/wrapped_locale.cc execution test
> FAIL: 22_locale/messages_byname/named_equivalence.cc execution test

These are a result of configuring GCC with --disable-nls.  It's
a minor configuration issue.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <sys/ioctl.h>
int
main ()
{
  int fd, result;
  int num = 0;

  fd = open ("sgetn.txt", O_RDONLY);
  result = ioctl (fd, FIONREAD, &num);
  printf ("num = %d\n\n", num);
  return 0;
}
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Randolph Chung wrote:
...
> Is this the right thing to do? Do we need something similar for
> get_user()?
> 
would you mean something like:
--- include/asm-parisc/uaccess.h.orig   2005-02-26 13:23:35.000000000 +0100
+++ include/asm-parisc/uaccess.h        2005-03-13 13:20:11.000000000 +0100
@@ -102,8 +102,9 @@
             }                                           \
         }                                               \
                                                         \
-       (x) = (__typeof__(*(ptr))) __gu_val;            \
-       __gu_err;                                       \
+        __typeof__(*(ptr)) __x = (__typeof__(*(ptr))) __gu_val;        \
+       (x) = (__typeof__((x))) (__x);                          \
+       __gu_err;                                               \
  })

  #ifdef __LP64__
====><====

> Tested on 32-bit and 64-bit (thanks Kyle!)
> 
Thanks,
	Joel
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> I think the attached patch is what we should do; the problem is that we
> are trying to put a 64-bit quantity (loff_t) into an int *, and we end
> up only storing the top bits. (see fs/ioctl.c for details)
> 
> Is this the right thing to do? Do we need something similar for
> get_user()?

Thinking more about this, I've decided that this change would
tend to hide problems.  The reality is that fs/ioctl.c has to
deal with how to convert the loff_t value to an int (e.g., return
INT_MAX for positive offsets exceeding INT_MAX, or return an
error, etc).  Truncation likely isn't the right thing to do
in all cases.

I don't know what is required here as the behavior of FIONREAD
for large offsets isn't defined.  Possibly, the issue is
academic in this case as it may not be possible to have more
than 2 GB of unread queued data.

GCC has a builtin __builtin_types_compatible_p that checks if
two types are compatible.  It might be used in a debug kernel
to look for other similar problems.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: xfs only investigation [WAS: [parisc-linux] xfs and ext3 pb on
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Xref: news.gmane.org gmane.linux.ports.parisc:22432

Hello all,

I continue investigation on xfs only because seems to be more easy to rep=
roduce:
on the b180 runing a recent kernel 2.6.11-pa2 (cvs co 20050311) just moun=
t
the fs and launch the compile of a kernel (e.g. a merged bk6 :-) ) and it=

stops quickly with error below mentioned 'attempt to access beyond end of=

device...'. Neither xfs_check nor xfs_repair help.

The same pb seems to occure on a d270 and c3600 runing also a recent 2.6.=
11
32bit.

Oth on a A500 (ggg), it seems to works fine since some days :-)

Fortunately, on my b2k I have an additional s.e. hba (hp supplied) on whi=
ch
I can connect the external disk used on the b180 to test xfs: so differen=
t
hba and different iommu?

I boot first a 32bit kernel with builtin xfs support and I reach to recom=
pile
a full kernel the the /mnt/XfsTest fs ...
nevertheless i reach to reproduce (difficultly i agree) when I do in the
same time an untar of the vanilla linux-2.6.11.tar (but just one occurenc=
e;
if remove the created dir linux-2.6.11 and relaunch the untar alone, the
pb doesn't occure ?$)

Has it seems to work better on a500, I would also test this same disk on
same
b2k with the same kernel but 64bit.
I re-launch the test of a kernel compile and untar the same time and _PAN=
IC_
:__(
Backtrace:
 [<000000001027b8e0>] xfs_ialloc_ag_select+0x200/0x340
 [<000000001027c35c>] xfs_dialloc+0x93c/0x958
 [<0000000010282ce8>] xfs_ialloc+0x78/0x500
 [<000000001029bc60>] xfs_dir_ialloc+0xb8/0x348
 [<00000000102a35ac>] xfs_mkdir+0x2c4/0x810
 [<00000000102b00c4>] linvfs_mknod+0x21c/0x258
 [<00000000102b0144>] linvfs_mkdir+0x1c/0x28
 [<00000000101a9ec0>] vfs_mkdir+0xb0/0xe8
 [<00000000101a9fe8>] sys_mkdir+0xf0/0x178
 [<0000000010107f78>] syscall_exit+0x0/0x14


Kernel Fault: Code=3D15 regs=3D000000001bf58ce0 (Addr=3D00000002b08cb741)=


     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  0000000000000000 000000029113e140 000000001066ca60 000000001d64a0=
00
r04-07  000000001ae1eb40 000000001067c260 000000001bbb74d0 000000001bf58b=
20
r08-11  0000000000000007 000000001bbb74d0 0000000000000008 00000000000000=
01
r12-15  000000001d64a238 0000000000000001 0000000000000001 00000000000000=
00
r16-19  0000000000000000 000000001bf58900 0000000010282ce8 000000001f78d6=
00
r20-23  000000001027b8e0 000000000000055c 0000000058414749 000000001d7074=
00
r24-27  00000002b08cb740 0000000000000001 0000000000000001 00000000106682=
60
r28-31  000000001d707400 000000001bf58cb0 000000001bf58ce0 00000000000000=
00
sr0-3   0000000000d91000 0000000000000000 0000000000000000 0000000000bae0=
00
sr4-7   0000000000000000 0000000000000000 0000000000000000 00000000000000=
00

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001027cf58 0000000010=
27cf5c
 IIR: 0f021014    ISR: 0000000000000000  IOR: 00000002b08cb741
 CPU:        0   CR30: 000000001bf58000 CR31: 0000000010620000
 ORIG_R28: 00000000102aa744
 IAOQ[0]: xfs_ialloc_read_agi+0x178/0x1a0
 IAOQ[1]: xfs_ialloc_read_agi+0x17c/0x1a0
 RP(r2): __gp+0x4800/0x17da0
Kernel panic - not syncing: Kernel Fault

That puts me in a deep black.

Any idea to highlight my way?

Thanks in advance,
    Joel

PS: I already tried vanilla patch 2.6.11.2 as well as Randolph patch: not=
hing
help for this pb

PS2: I also tried a bk6 merge (just in case new xfs fixes) but that crash=

very early with any messages; just adding pdc console would show a failur=
e
into new kernel/posix-cpu-timers.c
at line 1245: BUG_ON(!irqs_disabled());

>
> I was interested by xfs pb related by Grant and GMSoft and I reach to a=
lso
> obtain a corupted xfs (on a disk slice over which a reading dd doesn't
seems
> to encounter any pb).
>
> On my b180 running a 2.6.11-pa2 (cvs dated 20050310) with xfs builtin,
the
> error is always the same:
> XFS mounting filesystem sdd1
> attempt to access beyond end of device
> sdd1: rw=3D0, want=3D3130210928, limit=3D4098200
> I/O error in filesystem ("sdd1") meta-data dev sdd1 block 0xba933a68
>   ("xfs_trans_read_buf") error 5 buf count 4096
>
> >>here xfs_check ...
> >> then remount and make menuconfig
>
> XFS mounting filesystem sdd1
> attempt to access beyond end of device
> sdd1: rw=3D0, want=3D3130110864, limit=3D4098200
> I/O error in filesystem ("sdd1") meta-data dev sdd1 block 0xba91b388
>   ("xfs_trans_read_buf") error 5 buf count 4096
>
> >> here xfs_repair ...
> >> then same remount and make menuconfig
>
> XFS mounting filesystem sdd1
> attempt to access beyond end of device
> sdd1: rw=3D0, want=3D3130110864, limit=3D4098200
> I/O error in filesystem ("sdd1") meta-data dev sdd1 block 0xba91b388
>   ("xfs_trans_read_buf") error 5 buf count 4096
> ...
>
> this pb seems to be reproducible on D270, c3600 and b180 (all 32bit).
>
...


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Xref: news.gmane.org gmane.linux.ports.parisc:22433

> Thinking more about this, I've decided that this change would
> tend to hide problems.  The reality is that fs/ioctl.c has to
> deal with how to convert the loff_t value to an int (e.g., return
> INT_MAX for positive offsets exceeding INT_MAX, or return an
> error, etc).  Truncation likely isn't the right thing to do
> in all cases.

I suppose the behavior should, ideally, match some specification.
Unfortunately the only place I can find where FIONREAD is documented is
in LSB, and the description there is quite value about what the return
type is supposed to be.

For now I've commited a combination of:
1) Change the FIONREAD handling code to explicitly return a 4-byte value
2) Change the put_user code to cast the result to the expected type

Willy says he will follow up with other relevant folks to find out
what's the right thing to do.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: Re: [parisc-linux] State of the kernel
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On Mon, Mar 14, 2005 at 08:23:48PM +0100, Helge Deller wrote:
> Hi Matthew,
> 
> Thanks a lot for this great work !

No problem!  Could you review this outstanding patch for me ... it looks
like mostly notes to yourself.

diff -urpNX dontdiff linux-2.6.11-bk10/drivers/input/keyboard/atkbd.c parisc-2.6-bk/drivers/input/keyboard/atkbd.c
--- linux-2.6.11-bk10/drivers/input/keyboard/atkbd.c	2005-03-14 06:43:56.115276274 -0700
+++ parisc-2.6-bk/drivers/input/keyboard/atkbd.c	2005-03-14 07:07:27.000000000 -0700
@@ -262,8 +262,8 @@ static irqreturn_t atkbd_interrupt(struc
 	int scroll = 0, hscroll = 0, click = -1;
 	int value;
 
-#ifdef ATKBD_DEBUG
-	printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
+#if 0 || defined(ATKBD_DEBUG)   /* CHANGEME */
+	printk(KERN_ERR "atkbd.c: Received %02x flags %02x\n", data, flags);
 #endif
 
 #if !defined(__i386__) && !defined (__x86_64__)
@@ -402,6 +402,9 @@ static irqreturn_t atkbd_interrupt(struc
 					break;
 			}
 
+#if 0  /* CHANGEME */
+			printk(KERN_ERR "Reporting: %#x, emul=%d\n", code, atkbd->emul);
+#endif
 			atkbd_report_key(&atkbd->dev, regs, atkbd->keycode[code], value);
 	}
 
@@ -516,7 +519,12 @@ static int atkbd_probe(struct atkbd *atk
  * controller may confuse the keyboard need a full reset of the keyboard. On
  * these systems the BIOS also usually doesn't do it for us.
  */

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Xref: news.gmane.org gmane.linux.ports.parisc:22435

Hi Matthew,

Thanks a lot for this great work !

Helge

On Monday 14 March 2005 19:12, Matthew Wilcox wrote:
> Those subscribed to the parisc-linux-cvs list may have noticed the huge
> number of merges I've been doing recently.  This has been mostly in aid
> of this year's goal of getting PA-RISC to build out of Linus' tree.  I'm
> at the point where it's reasonable to give a status update now, so here goes:
> 
> 2.6.11-pa0 was approximately 813k of diff against Linus' tree with
> changes everywhere.  We're now down to 396k of diff against 2.6.11-bk10!
> 
> Here's how that breaks down:
> 
>  - 196k of it is sym2 driver changes.  I expect that will be merged
>    upstream shortly.
>  - 49k of it is other scsi changes; 53c700, ncr53c8xx and scsi_transport_spi.
>    Some of this is merged in James' scsi-misc-2.6 tree and other bits are
>    waiting for that tree to be merged to Linus', hopefully before -rc1.
>  - 56k is the ad1889 driver and related changes.  I'm holding off on
>    submitting this until the driver is a bit closer to working on the
>    request of Kyle and Stuart.
>  - 40k is unmerged HIL header files.  I think they were inadvertently omitted;
>    I've just pinged Linus and Vojtech about them
>  - 3k is misc input stuff.
>  - 25k is compat-related code.  I'm talking with Stephen Rothwell about
>    some of it, this is going to be difficult to merge, I think.
>  - 3k is Tulip driver changes.  Grant is handling these.
>  - I've sent another 6k of misc changes to Linus today.
>  - There's another 12k of misc patches in our tree:
>    - some Kconfiggery (I'll take care of this)
>    - NO_IRQ / SERIAL_IRQ_NONE (waiting on Ben Herrenschmidt)
>    - pcmcia (James will take care of this)
>    - FIONREAD (I'll deal with this)
>    - IDE header (I want to review this)
>    - CON_BOOT (needs fixing, I think I see what to do)
>    - OPD bugfix (doesn't need to go upstream)
>    - A small PA PCI patch I want to review
>    - Perf counters update (missed today's submission)
> 
> I think only trivial fixes are needed to Linus' tree to allow
> 712_defconfig to build and boot.  The major merge headaches are the
> CON_BOOT and compat code.  I'm going to stop deluging Linus with patches
> for a week or so and work on making some of the unmergable bits more
> mergable.
> 
> -- 
> "Next the statesmen will invent cheap lies, putting the blame upon 
> the nation that is attacked, and every man will be glad of those
> conscience-soothing falsities, and will diligently study them, and refuse
> to examine any refutations of them; and thus he will by and by convince 
> himself that the war is just, and will thank God for the better sleep 
> he enjoys after this process of grotesque self-deception." -- Mark Twain
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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On Monday 14 March 2005 20:40, Matthew Wilcox wrote:
> On Mon, Mar 14, 2005 at 08:23:48PM +0100, Helge Deller wrote:
> No problem!  Could you review this outstanding patch for me ... it looks
> like mostly notes to yourself.

Yeah - just ignore those changes.

Helge
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On Mon, Mar 14, 2005 at 08:44:48PM +0100, Helge Deller wrote:
> On Monday 14 March 2005 20:40, Matthew Wilcox wrote:
> > On Mon, Mar 14, 2005 at 08:23:48PM +0100, Helge Deller wrote:
> > No problem!  Could you review this outstanding patch for me ... it looks
> > like mostly notes to yourself.
> 
> Yeah - just ignore those changes.

Shall I remove them from our CVS or did you want them to stay?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain



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> >From your answer, I think that nobody works on 64 bit userland.

No, that's not quite true.  However, there is a lot of work needed
on binutils, the kernel, glibc and other tools before a 64-bit userland
will be a reality.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] remove hil_kbd.c?
Date: Tue, 15 Mar 2005 21:55:41 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:22439

Helge, et al,
I was wondering why we have two hil keyboard files:
	drivers/input/keyboard/hil_kbd.c
	drivers/input/keyboard/hilkbd.c

The header comments suggest Helge is maintaining hilkbd.c
and we should delete the other:
==> hil_kbd.c <==
/*
 * Generic linux-input device driver for keyboard devices
 *
 * Copyright (c) 2001 Brian S. Julin
 * All rights reserved.
...

Is that correct?

thanks,
grant
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] remove hil_kbd.c?
Date: Wed, 16 Mar 2005 14:39:46 +0000
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On Wed, Mar 16, 2005 at 01:37:22PM +0000, Matthew Wilcox wrote:
> Just the opposite way round.  hilkbd.c is the one I ported from the m68k
> guys back in 1999.  hil_kbd.c is the shiny new input-layer one that Brian
> Julin wrote from scratch.  Check the Kconfig/Makefile.

I forgot to say that it is, of course, desirable that we eliminate the
earlier driver.  It doesn't support HIL mice or other HIL devices.
I'd really like to see some of the problems with the newer driver fixed
though:

 - Apparent consumption of 70%+ CPU
 - Booting without a HIL device attached leads to hundreds of messages
   about requests already being queued.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] remove hil_kbd.c?
Date: Wed, 16 Mar 2005 13:37:22 +0000
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On Tue, Mar 15, 2005 at 09:55:41PM -0700, Grant Grundler wrote:
> Helge, et al,
> I was wondering why we have two hil keyboard files:
> 	drivers/input/keyboard/hil_kbd.c
> 	drivers/input/keyboard/hilkbd.c
> 
> The header comments suggest Helge is maintaining hilkbd.c
> and we should delete the other:
> ==> hil_kbd.c <==
> /*
>  * Generic linux-input device driver for keyboard devices
>  *
>  * Copyright (c) 2001 Brian S. Julin
>  * All rights reserved.
> ...
> 
> Is that correct?

Just the opposite way round.  hilkbd.c is the one I ported from the m68k
guys back in 1999.  hil_kbd.c is the shiny new input-layer one that Brian
Julin wrote from scratch.  Check the Kconfig/Makefile.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Solution to OPD's in hppa-linux,
	including a transition plan?
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To: carlos@baldric.uwo.ca (Carlos O'Donell)
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> We *do* have a n OPD for functions called in this manner, but only if
> the plabel word carried a PLABEL32 reloc. The use of _dl_make_fptr
> makes sure each symbol gets a unique function descriptor and will never
> create duplicates.
> 
> The problem is that in the executable, we lazily point all the plabel
> words at their associated plt entries and *splat* they are no longer
> unique. Please note this *only* happens in the executable. Executables
> do not generate PLABEL32 relocs for their plabel words.
> 
> I want to recommend that the executable emit PLABEL32 relocs against all
> plabel word entries. The dynamic loader would then fill these entries
> with unique OPD's as it has done so for shared libraries (this code was
> originall wirtten by Bame et. al. and I ported hppa to use Lu's
> non-locking generic version).

I think you are correct.  I hadn't realized that we are only dropping
the PLABEL32 in executables.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Mar 15, 2005 at 11:10:21PM -0500, John David Anglin wrote:
> > No. Read further, if I'm wrong please correct me.
> > 
> > The PLABEL32 contains the address of the function descriptor, while the
> > data in the PLT *is* the function descriptor. There is an extra lookup.
> > 
> > You have to load the address of the PLABEL32, load the value from there,
> > and then use that as your function descriptor. We currently *don't* do
> > this. The reason the indirection is there for PLABEL32 is such that the
> > dynamic loader can acutally assign the address of the OPD into that
> > word. 
> 
> No, I don't believe this is correct.  We do load the address
> from the PLABEL32 word.  That's the function pointer and what's
> passed to __cffc.  The problem is we don't have an OPD for the
> functions called in this manner.  We have more than one function
> descriptor for a any given function (possibly one for every
> PLABEL32 relocation).

We *do* have a n OPD for functions called in this manner, but only if
the plabel word carried a PLABEL32 reloc. The use of _dl_make_fptr
makes sure each symbol gets a unique function descriptor and will never
create duplicates.

The problem is that in the executable, we lazily point all the plabel
words at their associated plt entries and *splat* they are no longer
unique. Please note this *only* happens in the executable. Executables
do not generate PLABEL32 relocs for their plabel words.

I want to recommend that the executable emit PLABEL32 relocs against all
plabel word entries. The dynamic loader would then fill these entries
with unique OPD's as it has done so for shared libraries (this code was
originall wirtten by Bame et. al. and I ported hppa to use Lu's
non-locking generic version).
 
> On hppa64-hpux, we use essentially the same code to load function
> pointers from FPTR64 double words.  There we don't need to
> canonicalize the pointers because they point to the OPD for the
> function.

Sure, but the hpux libc probably does all the work to make sure that the
plabel words point to OPD's even for the executable :)

> > The problem is that in a normal executable those words just point at the
> > PLT and they shouldn't. That case should just generate a PLABEL32 reloc
> > in the executable. 
> > 
> > Do I understand the code correctly?
> 
> I think the situation envisioned in the parisc elf specification
> always envisioned a two level lookup.  In the relocations defined
> for 32-bit elf, the only way to load the address of a function
> descriptor is using the PLABEL32 relocation.  The 64-bit elf
> table also provides the LTOFF_FPTR21L and LTOFF_FPTR14R relocations.
> In this case, I believe that code has to load the address of the function
> descriptor from the linkage table, so it's still a two level lookup.

Yes, correct, I agree. Loading the *address* of a function descriptor
always requires a PLABEL32 reloction. The PLABEL32 reloction is handled
by the dynamic loader, which creates the OPD, and places the address of
the OPD into the plabel word.

Yes, as long as LTOFF_FTPR* load the address of the descriptor from the
linkage table (plt) then the system still works.

Hence, why I suggest executables also use PLABEL32 relocs if they take
the address of a function.

> The 32-bit ABI has the complication of the plabel bit in the function
> pointer.  While it might be possible to directly load the address
> of the function descriptor with an addil/ldo sequence if suitable
> relocations existed, saving one memory access, the code would still
> have to call $$dyncall or perform equivalent operations inline to
> test and strip off the plabel bit.

Yes, calling a function descriptor will always involve clearing the
plabel bit. I don't quite understand the performance gain to be made in
detecting that the plabel word contained a local address as opposed to a
function descriptor?

Yes, with a new relocation it *might* be possible to load the function
descriptor address directly from the plabel word, but as you say it 
would require writing into the code to change offsets?

> There are several disadvantages in the approach.  Plabels and linkage
> table entries can be shared for many calls to a given function.  Thus,
> the dynamic loader probably has an easier job doing the relocations.
> Also, I think that relocations might have to be redone (at least under
> hpux) when shared libraries are dynamically loaded by an application.
> This would require that the dynamic loader have the capability to
> write to code space after a program has started execution.  This is
> probably a security risk, particularly for shared libraries that are
> not privately mapped.  As I noted previously, the plabel words have
> to go in a read/write section because of this issue.

Do you really mean "disadvantages?"

Can you explain how plabels and plt entries can be shared for many calls
to a given function?

Are we still talking about the new reloc that could load the function
descriptor address directly?

Yes, plabel words go in read/write since they are written to by the
dynamic loader (only if they have a PLABEL32 reloc though).

---

This has definately been a good learning discussion, from the viewpoint
of optimal schemes for this type of architecture :)

Cheers,
Carlos.
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On Tue, Mar 15, 2005 at 11:22:25PM -0500, John David Anglin wrote:
> I'd be amazed if nested functions (a GCC extension) worked in the kernel.

Why wouldn't it work?

c.

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On Wed, Mar 16, 2005 at 09:11:42AM +1030, Alan Modra wrote:
> On Tue, Mar 15, 2005 at 05:08:48PM -0500, Carlos O'Donell wrote:
> > The problem is that in a normal executable those words just point at the
> > PLT and they shouldn't. That case should just generate a PLABEL32 reloc
> > in the executable. 
> 
> ld still needs to generate function descriptors for plabels that resolve
> locally, eg. because the symbol is for a static function.

I don't understand how this case changes the situation, can you elaborate a 
bit more?

Thanks,
Carlos.


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On Wed, Mar 16, 2005 at 03:36:57PM -0500, Carlos O'Donell wrote:
> On Wed, Mar 16, 2005 at 09:11:42AM +1030, Alan Modra wrote:
> > On Tue, Mar 15, 2005 at 05:08:48PM -0500, Carlos O'Donell wrote:
> > > The problem is that in a normal executable those words just point at the
> > > PLT and they shouldn't. That case should just generate a PLABEL32 reloc
> > > in the executable. 
> > 
> > ld still needs to generate function descriptors for plabels that resolve
> > locally, eg. because the symbol is for a static function.
> 
> I don't understand how this case changes the situation, can you elaborate a 
> bit more?

If you take the address of a static function (or a hidden function),
you'll need a plabel somewhere.  You can't expect ld.so to handle this
via _dl_make_fptr, because the static function symbol isn't available to
ld.so.  Also, don't forget that ld needs to do everything for a fully
static link.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre
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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] 2.6.12-rc1-pa1 32bit panicing on c110 :-( (BUG in
	53c700.c)
Date: Sat, 19 Mar 2005 21:24:22 +0000
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Hello all,

Sorry for the second wrong news but after the init of ncr53c720-0:
zalon_probe: Zalon version 1, IRQ 66
ncr53c720-0: rev 0xf irq 66
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3g
  target0:0:5: target did not report SYNC.
   Vendor: SEAGATE   Model: ST34371W          Rev: HP03
   Type:   Direct-Access                      ANSI SCSI revision: 02
  target0:0:5: Beginning Domain Validation
  target0:0:5: asynchronous.
  target0:0:5: wide asynchronous.
  target0:0:5: Domain Validation skipping write tests
  target0:0:5: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
  target0:0:5: Ending Domain Validation
  target0:0:6: target did not report SYNC.
   Vendor: SEAGATE   Model: ST34371W          Rev: HP03
   Type:   Direct-Access                      ANSI SCSI revision: 02
  target0:0:6: Beginning Domain Validation
  target0:0:6: asynchronous.
  target0:0:6: wide asynchronous.
  target0:0:6: Domain Validation skipping write tests
  target0:0:6: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
  target0:0:6: Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
scsi1: (3:0) HAS NO device
kernel BUG at /Debian-apt/SRC/linux-2.6.12-rc1-pa1-050319/drivers/scsi/53c700.c!Backtrace:
  [<10285488>] process_script_interrupt+0x80c/0xe84
  [<10286ae8>] NCR_700_intr+0x8c4/0xf90
  [<10144bc8>] handle_IRQ_event+0x50/0xa4
  [<10144d44>] __do_IRQ+0x128/0x174
  [<1021816c>] gsc_asic_intr+0x98/0xb4
  [<10144bc8>] handle_IRQ_event+0x50/0xa4
  [<10144d44>] __do_IRQ+0x128/0x174
  [<10106ee8>] do_cpu_irq_mask+0x7c/0xd8
  [<1010c068>] intr_return+0x0/0x14
  [<1020e8f0>] idr_get_new_above_int+0xa4/0x164
  [<10167980>] sys_utime+0x114/0x19c
  [<101124d8>] cpu_idle+0xc/0x3c
  [<10411488>] start_kernel+0x1c8/0x1f4

Kernel panic - not syncing: BUG!

Thanks,
     Joel
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Subject: [parisc-linux] Re: 2.6.12-rc1-pa1 32bit panicing on c110 :-( (BUG
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On Sat, 2005-03-19 at 21:24 +0000, Joel Soete wrote:
> scsi1: 53c710 rev 2
> scsi1 : LASI SCSI 53c700
> scsi1: (3:0) HAS NO device
> kernel BUG at /Debian-apt/SRC/linux-2.6.12-rc1-pa1-050319/drivers/scsi/53c700.c!Backtrace:

The fix is here:

http://marc.theaimsgroup.com/?l=linux-scsi&m=111125955211593

James


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On Sat, Mar 19, 2005 at 10:33:24PM +0000, David Pye wrote:
> The other thing is that the kernel version which is displayed on the lcd by 
> default is overwritten partly by a:
> 
> INI CC01 
> 
> It's not a huge issue for me, as I can overwrite it again by echo'ing my 
> message into /proc/pdc/lcd post boot.

This is the firmware showing the "Chassis Log" as emitted by the kernel.
Some platforms (e.g. A500/rp2470) use chassis logs to set the LED
properly.

> Is it possible to make the write to the display later in the boot process, so 
> it occurs after the INI CC01 is printed?

I would think it's possible.
You want to track down where the CC01 chassis_log is emitted then 
propose a better place to initialize LED display?

Another idea is the chassis log code might want to clear the LED
diplay when displaying a chassis log and then a few seconds later
refresh the LED display with the original contents or something.

> (Incidentally, the INI CC01 is only on the screen - /proc/pdc/led returns the 
> normal kernel version - I assume this is because the message was printed by 
> the hardware, itself?)

The firmware. IIRC, /proc/pdc/led just returns a cached value.

thanks,
grant


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From: David Pye <dmp@davidmpye.dyndns.org>
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Subject: [parisc-linux] Re: J5000 LCD heartbeat
Date: Sun, 20 Mar 2005 19:18:29 +0000
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On Saturday 19 March 2005 23:19, Grant Grundler wrote:
> On Sat, Mar 19, 2005 at 10:33:24PM +0000, David Pye wrote:
> > The other thing is that the kernel version which is displayed on the lcd
> > by default is overwritten partly by a:
> >
> > INI CC01
> >
> > It's not a huge issue for me, as I can overwrite it again by echo'ing my
> > message into /proc/pdc/lcd post boot.
>
> This is the firmware showing the "Chassis Log" as emitted by the kernel.
> Some platforms (e.g. A500/rp2470) use chassis logs to set the LED
> properly.
>
> > Is it possible to make the write to the display later in the boot
> > process, so it occurs after the INI CC01 is printed?
>
> I would think it's possible.
> You want to track down where the CC01 chassis_log is emitted then
> propose a better place to initialize LED display?

I think I have an idea that it's related to CPU1 init, but I haven't confir=
med=20
this yet - depending on your feedback to the idea below, I won't bother=20
tracing it down.

> Another idea is the chassis log code might want to clear the LED
> diplay when displaying a chassis log and then a few seconds later
> refresh the LED display with the original contents or something.

At the very least, I think it needs to clear the lcd display before it send=
s=20
the chassis code to the PDC.  How does this sound:

Clear the lcd
Send the chassis code
set up a timer for 15 seconds, say, to restore the original display text

This requires a couple of changes to led.c so firmware.c can tell whether t=
he=20
machine has an LCD or not. (If it does, then do the above, otherwise just=20
send the chassis code as before.)

If you agree that this is something useful, I will do some more hacking on =
it.=20
Otherwise, I'll do the other option and arrange the the chassis log to be=20
sent before the lcd has the initial text printed on it.

Another idea I had was this:

How about making the text scrollable? ie if the string is longer than the=20
viewport, scroll it along at a reasonable rate.

I'm willing to have a play with this too, if people think it's something wo=
rth=20
having.

Did you have any hints you could give me as to fix my very occasional=20
heartbeat issue either?=20

Cheers,

David

<snip>

> thanks,
> grant

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_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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From - Thu Nov 08 21:33:08 2018
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Subject: Re: J5000 LCD heartbeat
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On Saturday 19 March 2005 23:19, Grant Grundler wrote:
> On Sat, Mar 19, 2005 at 10:33:24PM +0000, David Pye wrote:
> > The other thing is that the kernel version which is displayed on the lcd
> > by default is overwritten partly by a:
> >
> > INI CC01
> >
> > It's not a huge issue for me, as I can overwrite it again by echo'ing my
> > message into /proc/pdc/lcd post boot.
>
> This is the firmware showing the "Chassis Log" as emitted by the kernel.
> Some platforms (e.g. A500/rp2470) use chassis logs to set the LED
> properly.
>
> > Is it possible to make the write to the display later in the boot
> > process, so it occurs after the INI CC01 is printed?
>
> I would think it's possible.
> You want to track down where the CC01 chassis_log is emitted then
> propose a better place to initialize LED display?

I think I have an idea that it's related to CPU1 init, but I haven't confir=
med=20
this yet - depending on your feedback to the idea below, I won't bother=20
tracing it down.

> Another idea is the chassis log code might want to clear the LED
> diplay when displaying a chassis log and then a few seconds later
> refresh the LED display with the original contents or something.

At the very least, I think it needs to clear the lcd display before it send=
s=20
the chassis code to the PDC.  How does this sound:

Clear the lcd
Send the chassis code
set up a timer for 15 seconds, say, to restore the original display text

This requires a couple of changes to led.c so firmware.c can tell whether t=
he=20
machine has an LCD or not. (If it does, then do the above, otherwise just=20
send the chassis code as before.)

If you agree that this is something useful, I will do some more hacking on =
it.=20
Otherwise, I'll do the other option and arrange the the chassis log to be=20
sent before the lcd has the initial text printed on it.

Another idea I had was this:

How about making the text scrollable? ie if the string is longer than the=20
viewport, scroll it along at a reasonable rate.

I'm willing to have a play with this too, if people think it's something wo=
rth=20
having.

Did you have any hints you could give me as to fix my very occasional=20
heartbeat issue either?=20

Cheers,

David

<snip>

> thanks,
> grant

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Hi, and thanks for your reply.

On Sunday 20 March 2005 19:40, you wrote:

> > I think I have an idea that it's related to CPU1 init, but I haven't
> > confirmed this yet - depending on your feedback to the idea below, I
> > won't bother tracing it down.
>
> Don't bother. I have that kind of message left on my j5k LCD has well,
> that's been there for ages, without problem.

Well, I'd like to see it gone myself, even though it doesn't do anything=20
unpleasant. It is a little messy, at least having it mangled up with the=20
Linux default text is.

If all it takes to prevent it is to make the lcd init happen slightly later=
 in=20
the boot process (ie after the chassis code was emitted), I'd have thought =
it=20
would be an easy win.

> If you think about the firmware code that drives the display of chassis
> messages, it's firmware, changing how it works is pretty much not
> possible at that point. If you think about the PDC Chassis driver, that
> code doesn't work (read, "isn't activated") on j5k and other System Map
> firmware machines, it only works on PDC PAT machines (eg high end
> servers).

Yeah, true. So, if the PDC chassis driver isn't used on the j5k, how does t=
he=20
chassis message get sent from the kernel to the PDC?  I haven't worked that=
=20
out yet.

> I don't think this is either useful nor desirable. We want to have the
> firmware messages going over whatever the led/lcd driver would have shown,
> and going into such a pain for a corner case doesn't really seem worth it.

At the very least, clearing the display first before the message is shown=20
would have been helpful, imho. =20

I'd personally like to have the firmware message displayed only for a limit=
ed=20
time, though I can see a counter argument for this.  But not for having=20
cleared the display first, though. (Whether this is possible depends on you=
r=20
answer as to how the PDC is told to display the message!)

> > Another idea I had was this:
> >
> > How about making the text scrollable? ie if the string is longer than
> > the viewport, scroll it along at a reasonable rate.
>
> That has been considered and eventually ruled out. Remember we're in
> kernel context, this is not meant to be eye candy etc. The pretty
> formatting you suggest should be eventually a userland task, certainly not
> a supplementary burden for the kernel.

Yep, agreed, that probably isn't a worthwhile thing to add. I was just=20
thinking of other random ideas, that's all.

> > Did you have any hints you could give me as to fix my very occasional
> > heartbeat issue either?
>
> I recall that the LCD heartbeat is quite slow on my j5k as well, but
> nothing really awful, afaicr.

Well, here it's sufficiently slow to be utterly useless as a heartbeat,=20
anyway. It usually flips state every 10-30 seconds, depending on how it=20
feels. It certainly doesn't boot.

I realise the LCD functionality is something fairly minor, and that I'm bei=
ng=20
picky, but I'd be happy to invest some time to do some fine tuning.  The on=
ly=20
two must-haves for me is to nail the INI CC01 message being displayed over=
=20
the Linux kernel version display, and preferably to make my heart beat too =
;)

Thanks,

David

> HTH
>
> Thibaut VARENE
> The PA/Linux Team
> http://www.pateam.org/

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Subject: [parisc-linux] Re: J5000 LCD heartbeat
Date: Sun, 20 Mar 2005 19:52:29 +0000
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Hi, and thanks for your reply.

On Sunday 20 March 2005 19:40, you wrote:

> > I think I have an idea that it's related to CPU1 init, but I haven't
> > confirmed this yet - depending on your feedback to the idea below, I
> > won't bother tracing it down.
>
> Don't bother. I have that kind of message left on my j5k LCD has well,
> that's been there for ages, without problem.

Well, I'd like to see it gone myself, even though it doesn't do anything=20
unpleasant. It is a little messy, at least having it mangled up with the=20
Linux default text is.

If all it takes to prevent it is to make the lcd init happen slightly later=
 in=20
the boot process (ie after the chassis code was emitted), I'd have thought =
it=20
would be an easy win.

> If you think about the firmware code that drives the display of chassis
> messages, it's firmware, changing how it works is pretty much not
> possible at that point. If you think about the PDC Chassis driver, that
> code doesn't work (read, "isn't activated") on j5k and other System Map
> firmware machines, it only works on PDC PAT machines (eg high end
> servers).

Yeah, true. So, if the PDC chassis driver isn't used on the j5k, how does t=
he=20
chassis message get sent from the kernel to the PDC?  I haven't worked that=
=20
out yet.

> I don't think this is either useful nor desirable. We want to have the
> firmware messages going over whatever the led/lcd driver would have shown,
> and going into such a pain for a corner case doesn't really seem worth it.

At the very least, clearing the display first before the message is shown=20
would have been helpful, imho. =20

I'd personally like to have the firmware message displayed only for a limit=
ed=20
time, though I can see a counter argument for this.  But not for having=20
cleared the display first, though. (Whether this is possible depends on you=
r=20
answer as to how the PDC is told to display the message!)

> > Another idea I had was this:
> >
> > How about making the text scrollable? ie if the string is longer than
> > the viewport, scroll it along at a reasonable rate.
>
> That has been considered and eventually ruled out. Remember we're in
> kernel context, this is not meant to be eye candy etc. The pretty
> formatting you suggest should be eventually a userland task, certainly not
> a supplementary burden for the kernel.

Yep, agreed, that probably isn't a worthwhile thing to add. I was just=20
thinking of other random ideas, that's all.

> > Did you have any hints you could give me as to fix my very occasional
> > heartbeat issue either?
>
> I recall that the LCD heartbeat is quite slow on my j5k as well, but
> nothing really awful, afaicr.

Well, here it's sufficiently slow to be utterly useless as a heartbeat,=20
anyway. It usually flips state every 10-30 seconds, depending on how it=20
feels. It certainly doesn't boot.

I realise the LCD functionality is something fairly minor, and that I'm bei=
ng=20
picky, but I'd be happy to invest some time to do some fine tuning.  The on=
ly=20
two must-haves for me is to nail the INI CC01 message being displayed over=
=20
the Linux kernel version display, and preferably to make my heart beat too =
;)

Thanks,

David

> HTH
>
> Thibaut VARENE
> The PA/Linux Team
> http://www.pateam.org/

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Subject: Re: J5000 LCD heartbeat
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On Sun, 20 Mar 2005 19:18:29 +0000
David Pye <dmp@davidmpye.dyndns.org> wrote:

> On Saturday 19 March 2005 23:19, Grant Grundler wrote:
> > On Sat, Mar 19, 2005 at 10:33:24PM +0000, David Pye wrote:
> >
> > > Is it possible to make the write to the display later in the boot
> > > process, so it occurs after the INI CC01 is printed?
> >
> > I would think it's possible.
> > You want to track down where the CC01 chassis_log is emitted then
> > propose a better place to initialize LED display?
> 
> I think I have an idea that it's related to CPU1 init, but I haven't
> confirmed this yet - depending on your feedback to the idea below, I
> won't bother tracing it down.

Don't bother. I have that kind of message left on my j5k LCD has well,
that's been there for ages, without problem.

> > Another idea is the chassis log code might want to clear the LED
> > diplay when displaying a chassis log and then a few seconds later
> > refresh the LED display with the original contents or something.
> 
> At the very least, I think it needs to clear the lcd display before it
> sends the chassis code to the PDC.  How does this sound:

If you think about the firmware code that drives the display of chassis
messages, it's firmware, changing how it works is pretty much not
possible at that point. If you think about the PDC Chassis driver, that
code doesn't work (read, "isn't activated") on j5k and other System Map
firmware machines, it only works on PDC PAT machines (eg high end
servers).

> Clear the lcd
> Send the chassis code
> set up a timer for 15 seconds, say, to restore the original display text
> 
> This requires a couple of changes to led.c so firmware.c can tell
> whether the machine has an LCD or not. (If it does, then do the above,
> otherwise just send the chassis code as before.)

AFAIK, it's not possible for the led.c driver to figure out whether the
firmware has sent anything to the LCD display.

> If you agree that this is something useful, I will do some more hacking
> on it. Otherwise, I'll do the other option and arrange the the chassis
> log to be sent before the lcd has the initial text printed on it.

I don't think this is either useful nor desirable. We want to have the
firmware messages going over whatever the led/lcd driver would have shown,
and going into such a pain for a corner case doesn't really seem worth it.

> Another idea I had was this:
> 
> How about making the text scrollable? ie if the string is longer than
> the viewport, scroll it along at a reasonable rate.

That has been considered and eventually ruled out. Remember we're in
kernel context, this is not meant to be eye candy etc. The pretty
formatting you suggest should be eventually a userland task, certainly not
a supplementary burden for the kernel.

At some point we looked after writing a complete driver for the LCD
display, but it happens that it's much more complicated than first
expected. For instance, accessing the other row of the LCD is almost
impossible. In any case, it would probably consume resource for nothing
really worth it.

> I'm willing to have a play with this too, if people think it's something
> worth having.

IMHO it's not.

> Did you have any hints you could give me as to fix my very occasional 
> heartbeat issue either? 

I recall that the LCD heartbeat is quite slow on my j5k as well, but
nothing really awful, afaicr.

HTH

Thibaut VARENE
The PA/Linux Team
http://www.pateam.org/


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Subject: [parisc-linux] Re: J5000 LCD heartbeat
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On Sun, 20 Mar 2005 19:52:29 +0000
David Pye <dmp@davidmpye.dyndns.org> wrote:

> Hi, and thanks for your reply.
> 
> On Sunday 20 March 2005 19:40, you wrote:
> 
> > > I think I have an idea that it's related to CPU1 init, but I haven't
> > > confirmed this yet - depending on your feedback to the idea below, I
> > > won't bother tracing it down.
> >
> > Don't bother. I have that kind of message left on my j5k LCD has well,
> > that's been there for ages, without problem.
> 
> Well, I'd like to see it gone myself, even though it doesn't do anything
> unpleasant. It is a little messy, at least having it mangled up with the
> Linux default text is.
> 
> If all it takes to prevent it is to make the lcd init happen slightly
> later in the boot process (ie after the chassis code was emitted), I'd
> have thought it would be an easy win.

it's not that simple.
If you want to have it gone, add 
@reboot echo "" > /proc/pdc/lcd
in your root crontab :)

> > If you think about the firmware code that drives the display of
> > chassis messages, it's firmware, changing how it works is pretty much
> > not possible at that point. If you think about the PDC Chassis driver,
> > that code doesn't work (read, "isn't activated") on j5k and other
> > System Map firmware machines, it only works on PDC PAT machines (eg
> > high end servers).
> 
> Yeah, true. So, if the PDC chassis driver isn't used on the j5k, how
> does the chassis message get sent from the kernel to the PDC?  I haven't
> worked that out yet.

That message is a *firmware* one. It is send by the machine itself, not
by anything in the kernel (at least, directly).
 
> > I don't think this is either useful nor desirable. We want to have the
> > firmware messages going over whatever the led/lcd driver would have
> > shown, and going into such a pain for a corner case doesn't really
> > seem worth it.
> 
> At the very least, clearing the display first before the message is
> shown would have been helpful, imho.  

As i told you, this is not possible. The firmware doesn't know there's
already something on the display. And you don't want to rewrite the PDC
firmware, do you? :)

> I'd personally like to have the firmware message displayed only for a
> limited time, though I can see a counter argument for this.  But not for
> having cleared the display first, though. (Whether this is possible
> depends on your answer as to how the PDC is told to display the
> message!)

This is certainly not a good idea, but if you want that, add the following
to your root crontab:

*/10 * * * * echo "" > /proc/pdc/lcd

This will redraw the original message every 10mn.

> > > Did you have any hints you could give me as to fix my very
> > > occasional heartbeat issue either?
> >
> > I recall that the LCD heartbeat is quite slow on my j5k as well, but
> > nothing really awful, afaicr.
> 
> Well, here it's sufficiently slow to be utterly useless as a heartbeat, 
> anyway. It usually flips state every 10-30 seconds, depending on how it 
> feels. It certainly doesn't boot.
> 
> I realise the LCD functionality is something fairly minor, and that I'm
> being picky, but I'd be happy to invest some time to do some fine
> tuning.  The only two must-haves for me is to nail the INI CC01 message
> being displayed over the Linux kernel version display, and preferably to
> make my heart beat too ;)

The LED/LCD driver uses tasklets, which are quite CPU expensive. I think
this is one of the reason the heartbeat is slow. Though 30s seems alot to
me either.

HTH

Thibaut VARENE
The PA/Linux Team
http://www.pateam.org/
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: Re: J5000 LCD heartbeat
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Xref: news.gmane.org gmane.linux.ports.parisc:22456

On Sun, 20 Mar 2005 19:52:29 +0000
David Pye <dmp@davidmpye.dyndns.org> wrote:

> Hi, and thanks for your reply.
> 
> On Sunday 20 March 2005 19:40, you wrote:
> 
> > > I think I have an idea that it's related to CPU1 init, but I haven't
> > > confirmed this yet - depending on your feedback to the idea below, I
> > > won't bother tracing it down.
> >
> > Don't bother. I have that kind of message left on my j5k LCD has well,
> > that's been there for ages, without problem.
> 
> Well, I'd like to see it gone myself, even though it doesn't do anything
> unpleasant. It is a little messy, at least having it mangled up with the
> Linux default text is.
> 
> If all it takes to prevent it is to make the lcd init happen slightly
> later in the boot process (ie after the chassis code was emitted), I'd
> have thought it would be an easy win.

it's not that simple.
If you want to have it gone, add 
@reboot echo "" > /proc/pdc/lcd
in your root crontab :)

> > If you think about the firmware code that drives the display of
> > chassis messages, it's firmware, changing how it works is pretty much
> > not possible at that point. If you think about the PDC Chassis driver,
> > that code doesn't work (read, "isn't activated") on j5k and other
> > System Map firmware machines, it only works on PDC PAT machines (eg
> > high end servers).
> 
> Yeah, true. So, if the PDC chassis driver isn't used on the j5k, how
> does the chassis message get sent from the kernel to the PDC?  I haven't
> worked that out yet.

That message is a *firmware* one. It is send by the machine itself, not
by anything in the kernel (at least, directly).
 
> > I don't think this is either useful nor desirable. We want to have the
> > firmware messages going over whatever the led/lcd driver would have
> > shown, and going into such a pain for a corner case doesn't really
> > seem worth it.
> 
> At the very least, clearing the display first before the message is
> shown would have been helpful, imho.  

As i told you, this is not possible. The firmware doesn't know there's
already something on the display. And you don't want to rewrite the PDC
firmware, do you? :)

> I'd personally like to have the firmware message displayed only for a
> limited time, though I can see a counter argument for this.  But not for
> having cleared the display first, though. (Whether this is possible
> depends on your answer as to how the PDC is told to display the
> message!)

This is certainly not a good idea, but if you want that, add the following
to your root crontab:

*/10 * * * * echo "" > /proc/pdc/lcd

This will redraw the original message every 10mn.

> > > Did you have any hints you could give me as to fix my very
> > > occasional heartbeat issue either?
> >
> > I recall that the LCD heartbeat is quite slow on my j5k as well, but
> > nothing really awful, afaicr.
> 
> Well, here it's sufficiently slow to be utterly useless as a heartbeat, 
> anyway. It usually flips state every 10-30 seconds, depending on how it 
> feels. It certainly doesn't boot.
> 
> I realise the LCD functionality is something fairly minor, and that I'm
> being picky, but I'd be happy to invest some time to do some fine
> tuning.  The only two must-haves for me is to nail the INI CC01 message
> being displayed over the Linux kernel version display, and preferably to
> make my heart beat too ;)

The LED/LCD driver uses tasklets, which are quite CPU expensive. I think
this is one of the reason the heartbeat is slow. Though 30s seems alot to
me either.

HTH

Thibaut VARENE
The PA/Linux Team
http://www.pateam.org/


-- 
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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: J5000 LCD heartbeat
Date: Sun, 20 Mar 2005 20:40:32 +0100
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On Sun, 20 Mar 2005 19:18:29 +0000
David Pye <dmp@davidmpye.dyndns.org> wrote:

> On Saturday 19 March 2005 23:19, Grant Grundler wrote:
> > On Sat, Mar 19, 2005 at 10:33:24PM +0000, David Pye wrote:
> >
> > > Is it possible to make the write to the display later in the boot
> > > process, so it occurs after the INI CC01 is printed?
> >
> > I would think it's possible.
> > You want to track down where the CC01 chassis_log is emitted then
> > propose a better place to initialize LED display?
> 
> I think I have an idea that it's related to CPU1 init, but I haven't
> confirmed this yet - depending on your feedback to the idea below, I
> won't bother tracing it down.

Don't bother. I have that kind of message left on my j5k LCD has well,
that's been there for ages, without problem.

> > Another idea is the chassis log code might want to clear the LED
> > diplay when displaying a chassis log and then a few seconds later
> > refresh the LED display with the original contents or something.
> 
> At the very least, I think it needs to clear the lcd display before it
> sends the chassis code to the PDC.  How does this sound:

If you think about the firmware code that drives the display of chassis
messages, it's firmware, changing how it works is pretty much not
possible at that point. If you think about the PDC Chassis driver, that
code doesn't work (read, "isn't activated") on j5k and other System Map
firmware machines, it only works on PDC PAT machines (eg high end
servers).

> Clear the lcd
> Send the chassis code
> set up a timer for 15 seconds, say, to restore the original display text
> 
> This requires a couple of changes to led.c so firmware.c can tell
> whether the machine has an LCD or not. (If it does, then do the above,
> otherwise just send the chassis code as before.)

AFAIK, it's not possible for the led.c driver to figure out whether the
firmware has sent anything to the LCD display.

> If you agree that this is something useful, I will do some more hacking
> on it. Otherwise, I'll do the other option and arrange the the chassis
> log to be sent before the lcd has the initial text printed on it.

I don't think this is either useful nor desirable. We want to have the
firmware messages going over whatever the led/lcd driver would have shown,
and going into such a pain for a corner case doesn't really seem worth it.

> Another idea I had was this:
> 
> How about making the text scrollable? ie if the string is longer than
> the viewport, scroll it along at a reasonable rate.

That has been considered and eventually ruled out. Remember we're in
kernel context, this is not meant to be eye candy etc. The pretty
formatting you suggest should be eventually a userland task, certainly not
a supplementary burden for the kernel.

At some point we looked after writing a complete driver for the LCD
display, but it happens that it's much more complicated than first
expected. For instance, accessing the other row of the LCD is almost
impossible. In any case, it would probably consume resource for nothing
really worth it.

> I'm willing to have a play with this too, if people think it's something
> worth having.

IMHO it's not.

> Did you have any hints you could give me as to fix my very occasional 
> heartbeat issue either? 

I recall that the LCD heartbeat is quite slow on my j5k as well, but
nothing really awful, afaicr.

HTH

Thibaut VARENE
The PA/Linux Team
http://www.pateam.org/
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Subject: Re: [parisc-linux] Re: J5000 LCD heartbeat
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On Mon, Mar 21, 2005 at 04:55:06AM +0000, Stuart Brady wrote:
> I wonder if it's a problem that an "LED" can be updated if it hasn't
> changed (and even when there are others that actually need updating).
> I think the included patch evens out the heartbeat a bit, but maybe I'm
> imagining it...  Does it look okay?

Hrm...for LCD, can we program all 4 independently?
I've attached another patch based on ideas in yours that makes that
more explicit. Seems to work but I suppose locating a spec the LCD
panels would be the only way to know for sure.

On my j6k the change in LCD heartbeat was very faint.
LCD has a much slower/longer response time than an LED.
I've basically doubled the "time on" and now heart beat is easy to see.
But if someone knows the response time of the LCD panels, that
should make it obvious what the right values would be.

This difference got me wondering if we should have different tasklets
to handle LED vs LCD. If would be nice to deal with differences
in output device response times and a two step (cmd then data) update
process at a higher level than led_LCD_driver(). But I'm not volunteering
to rewrite LED/LCD driver and the patch below is Good Enough (IMHO).

Another possible improvement would be to move the code in the
"for" loop to a static inline function and just pass in all
the hard coded stuff. Wouldn't need any arrays and code is
probably compact enough that getting rid of the loop would
be a win. But someone would need to get CR16 cycle counts
before/after to prove it's better...again, more work than I'm
willing to put into it but something fun for someone to play with.

The following patch "Works for Me"(tm).
It's at risk for ignoring transitions until after the data phase is
taken care of and we send the next command. ie the gap between
when someone decides the LED should change and when it actually
changes entirely depends on how frequently led_LCD_driver gets called.

thanks,
grant

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Index: drivers/parisc/led.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/led.c,v
retrieving revision 1.12
diff -u -p -r1.12 led.c
--- drivers/parisc/led.c	18 Mar 2005 13:17:10 -0000	1.12
+++ drivers/parisc/led.c	21 Mar 2005 06:53:19 -0000
@@ -296,41 +296,40 @@ static void led_LASI_driver(unsigned cha
  */
 static void led_LCD_driver(unsigned char leds)
 {
-	static int last_index;	/* 0:heartbeat, 1:disk, 2:lan_in, 3:lan_out */
-	static int last_was_cmd;/* 0: CMD was written last, 1: DATA was last */
-	struct lcd_block *block_ptr;
-	int value;
-
-	switch (last_index) {
-	    case 0:	block_ptr = &lcd_info.heartbeat;
-			value = leds & LED_HEARTBEAT;
-			break;
-	    case 1:	block_ptr = &lcd_info.disk_io;
-			value = leds & LED_DISK_IO;
-			break;					
-	    case 2:	block_ptr = &lcd_info.lan_rcv;
-			value = leds & LED_LAN_RCV;
-			break;					
-	    case 3:	block_ptr = &lcd_info.lan_tx;
-			value = leds & LED_LAN_TX;
-			break;
-	    default:	/* should never happen: */
-			return;
-	}
-
-	if (last_was_cmd) {
-	    /* write the value to the LCD data port */
-    	    gsc_writeb( value ? block_ptr->on : block_ptr->off, LCD_DATA_REG );
-	} else {
-	    /* write the command-byte to the LCD command register */
-    	    gsc_writeb( block_ptr->command, LCD_CMD_REG );
-	}    
-	
-	/* now update the vars for the next interrupt iteration */ 
-	if (++last_was_cmd == 2) { /* switch between cmd & data */
-	    last_was_cmd = 0;
-	    if (++last_index == 4) 
-		last_index = 0;	 /* switch back to heartbeat index */
+	static unsigned char last_leds;
+
+	static unsigned char changed[4];
+	static unsigned char data[4];
+	static unsigned char mask[4] = { LED_HEARTBEAT, LED_DISK_IO,
+						LED_LAN_RCV, LED_LAN_TX };
+	static struct lcd_block * blockp[4] = {
+		&lcd_info.heartbeat,
+		&lcd_info.disk_io,
+		&lcd_info.lan_rcv,
+		&lcd_info.lan_tx
+	};
+
+	unsigned int i;
+
+	for (i = 0; i < 4; i++) {
+		if (changed[i]) {
+			/* finish LCD update with write to the LCD data port */
+			gsc_writeb( data[i], LCD_DATA_REG );
+			changed[i] = 0;
+		} else {
+			/* check if this "LED" changed since last time */
+			if ((leds ^ last_leds) & mask[i]) {
+				last_leds ^= mask[i];
+				data[i] = (leds & mask[i]) ?
+						blockp[i]->on :
+						blockp[i]->off;
+
+				changed[i] = 1;
+
+				/* start update by writing the cmd byte */
+		    		gsc_writeb(blockp[i]->command, LCD_CMD_REG);
+			}
+		}
 	}
 }
 
@@ -427,8 +426,8 @@ static __inline__ int led_get_diskio_act
     - optimizations
  */
 
-#define HEARTBEAT_LEN (HZ*6/100)
-#define HEARTBEAT_2ND_RANGE_START (HZ*22/100)
+#define HEARTBEAT_LEN (HZ*12/100)
+#define HEARTBEAT_2ND_RANGE_START (HZ*36/100)
 #define HEARTBEAT_2ND_RANGE_END   (HEARTBEAT_2ND_RANGE_START + HEARTBEAT_LEN)
 
 #define NORMALIZED_COUNT(count) (count/(HZ/100))
@@ -481,7 +480,7 @@ static void led_tasklet_func(unsigned lo
 	}
 	
 	/* update the LCD/LEDs */
-	if (currentleds != lastleds) {
+	if (currentleds != lastleds || lcd_info.model == DISPLAY_MODEL_LCD) {
 	    led_func_ptr(currentleds);
 	    lastleds = currentleds;
 	}
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On Sunday 20 March 2005 22:57, David Pye wrote:

> Well, I've had a bit of a play with this, and think I have a feel of what
> causes it.
>
> The led_LCD_driver() fires each time the tasklet decides the led statuses
> should change, but each time it only updates at best one of the four LEDs.
>
> Every time it fires, it either updates one led, or it writes the command
> register, to avoid sleeping.   This means, that it requires eight fires of
> the tasklet (and eight times of it having decided an LCD state should fli=
p)
> before the heartbeat will be written to.  It seems to be a rare occasion
> that these all line up (most of the time the heartbeat has pulsed back to
> its previous state before the LCD panel itself gets updated.

     =20
It appears my hunch was correct
  /* update the LCD/LEDs */
        if (currentleds !=3D lastleds || led_type =3D=3D LED_HASLCD) {
            led_func_ptr(currentleds);
            lastleds =3D currentleds;
        }

If I modify the conditional as above, so it fires the led_func_ptr each tim=
e=20
the tasklet fires for LCD users (even if the leds haven't nominally changed=
)=20
my heart beats!

Admittedly, it doesn't QUITE beat right, because of the rate the tasklet=20
fires, and the rate at which the heart is supposed to beat.

I'm convinced another solution, like one of the ones I mentioned earlier, i=
s a=20
better idea, of course.

I now get:

a normal double beat, followed a single beat (repeats).

Which is better than no beats at all in my book!

Cheers,

David

> Cheers,
>
> David

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On Sunday 20 March 2005 22:57, David Pye wrote:

> Well, I've had a bit of a play with this, and think I have a feel of what
> causes it.
>
> The led_LCD_driver() fires each time the tasklet decides the led statuses
> should change, but each time it only updates at best one of the four LEDs.
>
> Every time it fires, it either updates one led, or it writes the command
> register, to avoid sleeping.   This means, that it requires eight fires of
> the tasklet (and eight times of it having decided an LCD state should fli=
p)
> before the heartbeat will be written to.  It seems to be a rare occasion
> that these all line up (most of the time the heartbeat has pulsed back to
> its previous state before the LCD panel itself gets updated.

     =20
It appears my hunch was correct
  /* update the LCD/LEDs */
        if (currentleds !=3D lastleds || led_type =3D=3D LED_HASLCD) {
            led_func_ptr(currentleds);
            lastleds =3D currentleds;
        }

If I modify the conditional as above, so it fires the led_func_ptr each tim=
e=20
the tasklet fires for LCD users (even if the leds haven't nominally changed=
)=20
my heart beats!

Admittedly, it doesn't QUITE beat right, because of the rate the tasklet=20
fires, and the rate at which the heart is supposed to beat.

I'm convinced another solution, like one of the ones I mentioned earlier, i=
s a=20
better idea, of course.

I now get:

a normal double beat, followed a single beat (repeats).

Which is better than no beats at all in my book!

Cheers,

David

> Cheers,
>
> David

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Subject: [parisc-linux] RE: J5000 heartbeat
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On Sunday 20 March 2005 20:03, Thibaut VARENE wrote:
> On Sun, 20 Mar 2005 19:52:29 +0000
>
> David Pye <dmp@davidmpye.dyndns.org> wrote:
> > Hi, and thanks for your reply.
> >
> > On Sunday 20 March 2005 19:40, you wrote:
> > > > I think I have an idea that it's related to CPU1 init, but I haven't
> > > > confirmed this yet - depending on your feedback to the idea below, I
> > > > won't bother tracing it down.
> > >
> > > Don't bother. I have that kind of message left on my j5k LCD has well,
> > > that's been there for ages, without problem.
<snip>

> it's not that simple.
> If you want to have it gone, add
> @reboot echo "" > /proc/pdc/lcd
> in your root crontab :)

I think that's a perfectly acceptable solution for me, so I've done that.=20
Thankyou!
<snip>

> > > > Did you have any hints you could give me as to fix my very
> > > > occasional heartbeat issue either?
> > >
> > > I recall that the LCD heartbeat is quite slow on my j5k as well, but
> > > nothing really awful, afaicr.
> >
> > Well, here it's sufficiently slow to be utterly useless as a heartbeat,
> > anyway. It usually flips state every 10-30 seconds, depending on how it
> > feels. It certainly doesn't boot.
> >
> > I realise the LCD functionality is something fairly minor, and that I'm
> > being picky, but I'd be happy to invest some time to do some fine
> > tuning. =A0The only two must-haves for me is to nail the INI CC01 messa=
ge
> > being displayed over the Linux kernel version display, and preferably to
> > make my heart beat too ;)
>
> The LED/LCD driver uses tasklets, which are quite CPU expensive. I think
> this is one of the reason the heartbeat is slow. Though 30s seems alot to
> me either.

Well, I've had a bit of a play with this, and think I have a feel of what=20
causes it. =A0

The led_LCD_driver() fires each time the tasklet decides the led statuses=20
should change, but each time it only updates at best one of the four LEDs.

Every time it fires, it either updates one led, or it writes the command=20
register, to avoid sleeping. =A0 This means, that it requires eight fires o=
f=20
the tasklet (and eight times of it having decided an LCD state should flip)=
=20
before the heartbeat will be written to. =A0It seems to be a rare occasion =
that=20
these all line up (most of the time the heartbeat has pulsed back to its=20
previous state before the LCD panel itself gets updated.

I'm wondering whether it's worth doing one of the following:

Add a separate workqueue and use that instead of the tasklet, as the workqu=
eue=20
function can sleep, update the heartbeat each time it fires, as well as any=
=20
of the other LEDs that have changed state.

Add a single workqueue item for the heartbeat LED and use the tasklet to=20
handle the rest of the LEDs, as it seems to do an acceptable job for them.

What are your thoughts on that?

Cheers,

David


> HTH
>
> Thibaut VARENE
> The PA/Linux Team
> http://www.pateam.org/

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Subject: Re: [parisc-linux] Re: J5000 LCD heartbeat
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On Sun, Mar 20, 2005 at 09:03:57PM +0100, Thibaut VARENE wrote:
> it's not that simple.
> If you want to have it gone, add 
> @reboot echo "" > /proc/pdc/lcd
> in your root crontab :)

BTW, If anyone really wants scrolling, this script should do it.  It has
to use character 16 for spaces, which is a bit broken -- YMMV.

====================
#!/bin/bash

STR="Linux $(uname -r)   "
END=""

# Prevent the PDC from stripping leading spaces by
# using character 16 (octal 20) as a space...

STR="$(echo "$STR" | tr ' ' '\20')"

while(true); do
	echo "${STR}${END}" > /proc/pdc/lcd
	END="${END}${STR:0:1}"
	STR="${STR:1}"
	if [ -z "${STR:-}" ]; then
		STR="${END}"
		END=""
	fi
	sleep 0.25
done
====================

The character set is interesting:

1-8 for the disk/network/heartbeat symbols
32-127 are the standard ascii characters, except that:
   92 is a yen symbol
  126 is a left arrow
  127 is a right arrow
128-159 are unused
160-254 seem to be a mix of japanese, greek and accented roman letters
240 is an empty box
255 is a filled in square

Hope that helps,
-- 
Stuart Brady


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On Sun, Mar 20, 2005 at 11:17:03PM +0000, David Pye wrote:
> It appears my hunch was correct
>   /* update the LCD/LEDs */
>         if (currentleds != lastleds || led_type == LED_HASLCD) {
>             led_func_ptr(currentleds);
>             lastleds = currentleds;
>         }
> 
> If I modify the conditional as above, so it fires the led_func_ptr each time 
> the tasklet fires for LCD users (even if the leds haven't nominally changed) 
> my heart beats!

Ahh, fair enough.

Would it be better to test for "lcd_info.model == DISPLAY_MODEL_LCD"
rather than "led_type == LED_HASLCD"?

I wonder if it's a problem that an "LED" can be updated if it hasn't
changed (and even when there are others that actually need updating).
I think the included patch evens out the heartbeat a bit, but maybe I'm
imagining it...  Does it look okay?
-- 
Stuart Brady


Fix the virtual LEDs for LCD chassis displays.  Thanks to David Pye for
identifying the cause of the incorrect behaviour.

Signed-off-by: Stuart Brady <sdbrady@ntlworld.com>

Index: drivers/parisc/led.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/led.c,v
retrieving revision 1.12
diff -u -r1.12 led.c
--- drivers/parisc/led.c	18 Mar 2005 13:17:10 -0000	1.12
+++ drivers/parisc/led.c	21 Mar 2005 04:09:25 -0000
@@ -297,41 +297,53 @@
 static void led_LCD_driver(unsigned char leds)
 {
 	static int last_index;	/* 0:heartbeat, 1:disk, 2:lan_in, 3:lan_out */
-	static int last_was_cmd;/* 0: CMD was written last, 1: DATA was last */
-	struct lcd_block *block_ptr;
-	int value;
-
-	switch (last_index) {
-	    case 0:	block_ptr = &lcd_info.heartbeat;
-			value = leds & LED_HEARTBEAT;
-			break;
-	    case 1:	block_ptr = &lcd_info.disk_io;
-			value = leds & LED_DISK_IO;
-			break;					
-	    case 2:	block_ptr = &lcd_info.lan_rcv;
-			value = leds & LED_LAN_RCV;
-			break;					
-	    case 3:	block_ptr = &lcd_info.lan_tx;
-			value = leds & LED_LAN_TX;
-			break;
-	    default:	/* should never happen: */
-			return;
-	}
-
-	if (last_was_cmd) {
-	    /* write the value to the LCD data port */
-    	    gsc_writeb( value ? block_ptr->on : block_ptr->off, LCD_DATA_REG );
+	static int last_was_cmd;/* 1: CMD was written last, 0: DATA was last */
+	static int first = 1;
+	static int last_leds, last_value;
+	static struct lcd_block *block_ptr;
+	int i, mask;
+
+	if (first) {
+		last_leds = ~leds;
+		first = 0;
+	}
+	
+	if (!last_was_cmd) {
+		for (i = 0; i < 4; i++) {
+			switch (last_index) {
+			    case 0:	mask = LED_HEARTBEAT;
+					block_ptr = &lcd_info.heartbeat;
+					break;
+			    case 1:	mask = LED_DISK_IO;
+					block_ptr = &lcd_info.disk_io;
+					break;
+			    case 2:	mask = LED_LAN_RCV;
+					block_ptr = &lcd_info.lan_rcv;
+					break;
+			    case 3:	mask = LED_LAN_TX;
+					block_ptr = &lcd_info.lan_tx;
+					break;
+			    default:	/* should never happen: */
+					return;
+			}
+
+			last_index++;
+			last_index %= 4;
+
+			if ((leds ^ last_leds) & mask) {
+				last_leds ^= mask; /* the bit has changed */
+				last_value = leds & mask;
+				/* write the command-byte to the LCD command register */
+		    		gsc_writeb( block_ptr->command, LCD_CMD_REG );
+				last_was_cmd = 1;
+				break;
+			}
+		}
 	} else {
-	    /* write the command-byte to the LCD command register */
-    	    gsc_writeb( block_ptr->command, LCD_CMD_REG );
+		/* write the value to the LCD data port */
+    		gsc_writeb( last_value ? block_ptr->on : block_ptr->off, LCD_DATA_REG );
+		last_was_cmd = 0;
 	}    
-	
-	/* now update the vars for the next interrupt iteration */ 
-	if (++last_was_cmd == 2) { /* switch between cmd & data */
-	    last_was_cmd = 0;
-	    if (++last_index == 4) 
-		last_index = 0;	 /* switch back to heartbeat index */
-	}
 }
 
 
@@ -481,7 +493,7 @@
 	}
 	
 	/* update the LCD/LEDs */
-	if (currentleds != lastleds) {
+	if (currentleds != lastleds || lcd_info.model == DISPLAY_MODEL_LCD) {
 	    led_func_ptr(currentleds);
 	    lastleds = currentleds;
 	}
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On Mon, Mar 21, 2005 at 01:43:26PM +0000, Stuart Brady wrote:
> On Mon, Mar 21, 2005 at 12:19:45AM -0700, Grant Grundler wrote:
> > 
> > Hrm...for LCD, can we program all 4 independently?
> 
> Surely not -- they share the same command/data registers, so the command
> byte for one register could be written, with the data for another one.

*nod*
I totatlly overlooked the fact that the target of the writes was
one register pair:
	LCD display at f05d0008,f05d0000 registered


> If this isn't happening, that must be because only one LED is beingk
> updated at a time, but I don't think we should rely on that.

yeah. original scheme is on the right track.
I was not happy with the implementation but I think the
next version will address those (dealt with them offlist).

thanks,
grant
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On Mon, Mar 21, 2005 at 12:19:45AM -0700, Grant Grundler wrote:
> 
> Hrm...for LCD, can we program all 4 independently?

Surely not -- they share the same command/data registers, so the command
byte for one register could be written, with the data for another one.
If this isn't happening, that must be because only one LED is being
updated at a time, but I don't think we should rely on that.

> On my j6k the change in LCD heartbeat was very faint.
> LCD has a much slower/longer response time than an LED.
> I've basically doubled the "time on" and now heart beat is easy to see.
> But if someone knows the response time of the LCD panels, that
> should make it obvious what the right values would be.

The previous "time on" isn't great on real LEDs, either, but it looks
a bit more like a heartbeat.  I'll experiment with this, and see if I
can find a good compromise.

Thanks,
-- 
Stuart Brady
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Xref: news.gmane.org gmane.linux.ports.parisc:22466

> For now I've commited a combination of:
> 1) Change the FIONREAD handling code to explicitly return a 4-byte value
> 2) Change the put_user code to cast the result to the expected type

I got a bit paranoid about __put_user after the above bug.  Looking at
it, I believe that the LP64 version is broken for *(ptr) types of long,
unsigned long, and pointer types.  I believe that the current code
puts a 64-bit value instead of the 32-bit value that the 32-bit runtime
expects for these types.  This is fixed by adding a layer over the
old __put_user macro to do various type checking.

The above change also introduced some new warnings when building a
32-bit kernel.  These occur when the *(ptr) type is a pointer (e.g.,
void *).  The u64 cast in the size = 8 code is undefined, although
the code is actually used.  The current code is also questionable
when x is a pointer type and *(ptr) is a 64-bit type.  This is probably
an unlikely combination.  I believe that these issues are fixed by
the __put_user_cast macro.

The rest of the changes are just warning fixes that I noticed during
testing.  I don't believe that they have a functional effect.

I tested this with 32 and 64-bit builds of 2.6.12-rc1-pa1 with the
default c3000 and 64 configs.  I am running the 32-bit build and a
slighter earlier version survived a gcc build.  I haven't run the
64-bit changes.  I now don't see any cast related errors in the builds
except one in a call to atomic_read.  That's an unrelated problem.

Install if you like.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

? include/asm-parisc/uaccess.h.save
Index: drivers/net/lasi_82596.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/net/lasi_82596.c,v
retrieving revision 1.15
diff -u -p -u -3 -p -r1.15 lasi_82596.c
--- drivers/net/lasi_82596.c	29 Nov 2004 19:56:12 -0000	1.15
+++ drivers/net/lasi_82596.c	22 Mar 2005 01:55:27 -0000
@@ -640,7 +640,7 @@ static int init_i596_mem(struct net_devi
 		       (void*)(dev->base_addr + PA_I82596_RESET),
 		       dev->irq));
 	
-	gsc_writel(0, (void*)(dev->base_addr + PA_I82596_RESET)); /* Hard Reset */
+	gsc_writel(0, (unsigned long)(dev->base_addr + PA_I82596_RESET)); /* Hard Reset */
 	udelay(100);			/* Wait 100us - seems to help */
 
 	/* change the scp address */
Index: drivers/parisc/ccio-dma.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/ccio-dma.c,v
retrieving revision 1.18
diff -u -p -u -3 -p -r1.18 ccio-dma.c
--- drivers/parisc/ccio-dma.c	6 Mar 2005 23:48:39 -0000	1.18
+++ drivers/parisc/ccio-dma.c	22 Mar 2005 01:55:27 -0000
@@ -101,7 +101,7 @@
 #endif
 
 #define CCIO_INLINE	/* inline */
-#define WRITE_U32(value, addr) gsc_writel(value, (u32 *)(addr))
+#define WRITE_U32(value, addr) gsc_writel(value, (unsigned long)(addr))
 #define READ_U32(addr) gsc_readl((u32 *)(addr))
 
 #define U2_IOA_RUNWAY 0x580
@@ -1391,12 +1391,13 @@ ccio_ioc_init(struct ioc *ioc)
 static void
 ccio_init_resource(struct resource *res, char *name, unsigned long ioaddr)
 {
+	void *addr = (void *) ioaddr;
 	int result;
 
 	res->parent = NULL;
 	res->flags = IORESOURCE_MEM;
-	res->start = (unsigned long)(signed) __raw_readl(ioaddr) << 16;
-	res->end = (unsigned long)(signed) (__raw_readl(ioaddr + 4) << 16) - 1;
+	res->start = (unsigned long)(signed) __raw_readl(addr) << 16;
+	res->end = (unsigned long)(signed) (__raw_readl(addr + 4) << 16) - 1;
 	res->name = name;
 	if (res->end + 1 == res->start)
 		return;
@@ -1486,15 +1487,15 @@ int ccio_allocate_resource(const struct 
 
 	if (!expand_ioc_area(parent, size, min, max, align)) {
 		__raw_writel(((parent->start)>>16) | 0xffff0000,
-			     (unsigned long)&(ioc->ioc_hpa->io_io_low));
+			     (void *)&(ioc->ioc_hpa->io_io_low));
 		__raw_writel(((parent->end)>>16) | 0xffff0000,
-			     (unsigned long)&(ioc->ioc_hpa->io_io_high));
+			     (void *)&(ioc->ioc_hpa->io_io_high));
 	} else if (!expand_ioc_area(parent + 1, size, min, max, align)) {
 		parent++;
 		__raw_writel(((parent->start)>>16) | 0xffff0000,
-			     (unsigned long)&(ioc->ioc_hpa->io_io_low_hv));
+			     (void *)&(ioc->ioc_hpa->io_io_low_hv));
 		__raw_writel(((parent->end)>>16) | 0xffff0000,
-			     (unsigned long)&(ioc->ioc_hpa->io_io_high_hv));
+			     (void *)&(ioc->ioc_hpa->io_io_high_hv));
 	} else {
 		return -EBUSY;
 	}
Index: drivers/parisc/hppb.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/hppb.c,v
retrieving revision 1.5
diff -u -p -u -3 -p -r1.5 hppb.c
--- drivers/parisc/hppb.c	2 Mar 2005 06:47:37 -0000	1.5
+++ drivers/parisc/hppb.c	22 Mar 2005 01:55:27 -0000
@@ -74,8 +74,8 @@ static int hppb_probe(struct parisc_devi
 	card->mmio_region.name = "HP-PB Bus";
 	card->mmio_region.flags = IORESOURCE_MEM;
 
-	card->mmio_region.start = __raw_readl(dev->hpa + IO_IO_LOW);
-	card->mmio_region.end = __raw_readl(dev->hpa + IO_IO_HIGH) - 1;
+	card->mmio_region.start = __raw_readl((void *)(dev->hpa + IO_IO_LOW));
+	card->mmio_region.end = __raw_readl((void *)(dev->hpa + IO_IO_HIGH)) - 1;
 
 	status = ccio_request_resource(dev, &card->mmio_region);
 	if(status < 0) {
Index: drivers/scsi/lasi700.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/lasi700.c,v
retrieving revision 1.12
diff -u -p -u -3 -p -r1.12 lasi700.c
--- drivers/scsi/lasi700.c	15 Mar 2005 12:40:22 -0000	1.12
+++ drivers/scsi/lasi700.c	22 Mar 2005 01:55:27 -0000
@@ -112,7 +112,7 @@ lasi700_probe(struct parisc_device *dev)
 
 	hostdata->dev = &dev->dev;
 	dma_set_mask(&dev->dev, DMA_32BIT_MASK);
-	hostdata->base = ioremap(base, 0x100);
+	hostdata->base = (unsigned long) ioremap(base, 0x100);
 	hostdata->differential = 0;
 
 	if (dev->id.sversion == LASI_700_SVERSION) {
@@ -138,7 +138,7 @@ lasi700_probe(struct parisc_device *dev)
 	return 0;
 
  out_kfree:
-	iounmap(hostdata->base);
+	iounmap((void *)hostdata->base);
 	kfree(hostdata);
 	return -ENODEV;
 }
@@ -153,7 +153,7 @@ lasi700_driver_remove(struct parisc_devi
 	scsi_remove_host(host);
 	NCR_700_release(host);
 	free_irq(host->irq, host);
-	iounmap(hostdata->base);
+	iounmap((void *)hostdata->base);
 	kfree(hostdata);
 
 	return 0;
Index: drivers/video/stifb.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/video/stifb.c,v
retrieving revision 1.15
diff -u -p -u -3 -p -r1.15 stifb.c
--- drivers/video/stifb.c	29 Nov 2004 20:42:47 -0000	1.15
+++ drivers/video/stifb.c	22 Mar 2005 01:55:27 -0000
@@ -517,7 +517,7 @@ rattlerSetupPlanes(struct stifb_info *fb
 	SETUP_HW(fb);
 	WRITE_BYTE(1, fb, REG_16b1);
 
-	fb_memset(fb->info.fix.smem_start, 0xff,
+	fb_memset((void *)fb->info.fix.smem_start, 0xff,
 		fb->info.var.yres*fb->info.fix.line_length);
     
 	CRX24_SET_OVLY_MASK(fb);
@@ -977,7 +977,7 @@ stifb_write(struct file *file, const cha
 	    err = -EFAULT;
 	    if (copy_from_user(&tmpbuf, buf, len))
 		    break;
-	    memcpy_toio(p, &tmpbuf, len);
+	    memcpy_toio((void *)p, &tmpbuf, len);
 	    c -= len;
 	    p += len;
 	    buf += len;
Index: include/asm-parisc/uaccess.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/uaccess.h,v
retrieving revision 1.20
diff -u -p -u -3 -p -r1.20 uaccess.h
--- include/asm-parisc/uaccess.h	18 Mar 2005 13:17:43 -0000	1.20
+++ include/asm-parisc/uaccess.h	22 Mar 2005 01:55:28 -0000
@@ -80,7 +80,20 @@ struct exception_data {
 	unsigned long fault_addr;
 };
 
-#define __get_user(x,ptr)                               \
+#ifdef __LP64__
+#define __get_user(x,ptr)						\
+  __builtin_choose_expr(						\
+    sizeof(__typeof__(*(ptr))) < 8					\
+    || __builtin_types_compatible_p(s64, __typeof__(*(ptr)))		\
+    || __builtin_types_compatible_p(u64, __typeof__(*(ptr)))		\
+    || __builtin_types_compatible_p(double, __typeof__(*(ptr))),	\
+    __get_user_compat(x, ptr),						\
+    __get_user_compat(x, (u32 *)(unsigned long)(ptr)))
+#else
+#define __get_user __get_user_compat
+#endif
+
+#define __get_user_compat(x,ptr)                        \
 ({                                                      \
 	register long __gu_err __asm__ ("r8") = 0;      \
 	register long __gu_val __asm__ ("r9") = 0;      \
@@ -104,7 +117,7 @@ struct exception_data {
 	    }                                           \
 	}                                               \
 							\
-	(x) = (__typeof__(*(ptr))) __gu_val;            \
+	(x) = (__typeof__(x))__gu_val;			\
 	__gu_err;                                       \
 })
 
@@ -146,26 +159,66 @@ struct exception_data {
 		: "r1");
 #endif /* !__LP64__ */
 
-#define __put_user(x,ptr)                                       \
+#ifdef __LP64__
+#define __put_user(x,ptr)						\
+  __builtin_choose_expr(						\
+    sizeof(__typeof__(*(ptr))) != 8					\
+    || __builtin_types_compatible_p(s64, __typeof__(*(ptr)))		\
+    || __builtin_types_compatible_p(u64, __typeof__(*(ptr)))		\
+    || __builtin_types_compatible_p(double, __typeof__(*(ptr))),	\
+    __put_user_compat((u64)(x), ptr),					\
+    __put_user_compat((u64)(x), (u32 *)(unsigned long)(ptr)))
+#else
+/* It is necessary to cast X to a suitable type for __put_user_compat.
+   64-bit values need truncation when PTR points to a smaller object.
+   It is also difficult to handle pointer types without generating
+   warnings from the u64 cast in the code for size 8.  The (void)0
+   choice generates a compile error if an unhandled type combination
+   is encountered.  */
+#define __put_user_cast(x,ptr)						\
+  __builtin_choose_expr(						\
+    (sizeof(__typeof__(x)) == 1						\
+     || sizeof(__typeof__(x)) == 2					\
+     || sizeof(__typeof__(x)) == 4					\
+     || sizeof(__typeof__(x)) == 8)					\
+    && (sizeof(__typeof__(*(ptr))) == 1					\
+	|| sizeof(__typeof__(*(ptr))) == 2				\
+	|| sizeof(__typeof__(*(ptr))) == 4),				\
+    (u32)(x),								\
+    __builtin_choose_expr(						\
+      (sizeof(__typeof__(x)) == 1					\
+       || sizeof(__typeof__(x)) == 2					\
+       || sizeof(__typeof__(x)) == 4)					\
+      && sizeof(__typeof__(*(ptr))) == 8,				\
+      (u64)(u32)(x),							\
+      __builtin_choose_expr(						\
+	sizeof(__typeof__(x)) == 8					\
+	&& sizeof(__typeof__(*(ptr))) == 8,				\
+	(x),								\
+	(void)0)))
+
+#define __put_user(x,ptr) __put_user_compat(__put_user_cast(x, ptr), ptr)
+#endif
+
+#define __put_user_compat(x,ptr)                                \
 ({								\
 	register long __pu_err __asm__ ("r8") = 0;      	\
-        __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x);	\
 								\
 	if (segment_eq(get_fs(),KERNEL_DS)) {                   \
 	    switch (sizeof(*(ptr))) {                           \
-	    case 1: __put_kernel_asm("stb",__x,ptr); break;     \
-	    case 2: __put_kernel_asm("sth",__x,ptr); break;     \
-	    case 4: __put_kernel_asm("stw",__x,ptr); break;     \
-	    case 8: STD_KERNEL(__x,ptr); break;			\
+	    case 1: __put_kernel_asm("stb",x,ptr); break;       \
+	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
+	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
+	    case 8: STD_KERNEL(x,ptr); break;			\
 	    default: __put_kernel_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 	else {                                                  \
 	    switch (sizeof(*(ptr))) {                           \
-	    case 1: __put_user_asm("stb",__x,ptr); break;       \
-	    case 2: __put_user_asm("sth",__x,ptr); break;       \
-	    case 4: __put_user_asm("stw",__x,ptr); break;       \
-	    case 8: STD_USER(__x,ptr); break;			\
+	    case 1: __put_user_asm("stb",x,ptr); break;         \
+	    case 2: __put_user_asm("sth",x,ptr); break;         \
+	    case 4: __put_user_asm("stw",x,ptr); break;         \
+	    case 8: STD_USER(x,ptr); break;			\
 	    default: __put_user_bad(); break;			\
 	    }                                                   \
 	}                                                       \
@@ -219,10 +272,10 @@ struct exception_data {
 		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
 		: "r1")
 
-#define __put_kernel_asm64(__val,ptr) do {		    	    \
-	u64 __val64 = (u64)(__val);				    \
-	u32 hi = (__val64) >> 32;					    \
-	u32 lo = (__val64) & 0xffffffff;				    \
+#define __put_kernel_asm64(__val,ptr) do {	    	    \
+	u64 __val64 = (u64)__val;			    \
+	u32 hi = (__val64) >> 32;			    \
+	u32 lo = (__val64) & 0xffffffff;		    \
 	__asm__ __volatile__ (				    \
 		"\n1:\tstw %2,0(%1)\n"			    \
 		"\n2:\tstw %3,4(%1)\n"			    \
@@ -235,10 +288,10 @@ struct exception_data {
 		: "r1");				    \
 } while (0)
 
-#define __put_user_asm64(__val,ptr) do {		    	    \
-	u64 __val64 = (u64)__val;				    \
-	u32 hi = (__val64) >> 32;					    \
-	u32 lo = (__val64) & 0xffffffff;				    \
+#define __put_user_asm64(__val,ptr) do {	    	    \
+	u64 __val64 = (u64)__val;			    \
+	u32 hi = (__val64) >> 32;			    \
+	u32 lo = (__val64) & 0xffffffff;		    \
 	__asm__ __volatile__ (				    \
 		"\n1:\tstw %2,0(%%sr3,%1)\n"		    \
 		"\n2:\tstw %3,4(%%sr3,%1)\n"		    \
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: J5000 LCD heartbeat
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Xref: news.gmane.org gmane.linux.ports.parisc:22467

On Mon, Mar 21, 2005 at 12:19:45AM -0700, Grant Grundler wrote:
> Hrm...for LCD, can we program all 4 independently?

ok...I'm having fun with this!

Here's another take that I *think* does it right.
LCD blinks nicely at least :^)

Stuart, how does this look to you?

(ignore the _LEN/_START values...make them whatever you want)

thanks,
grant



Index: drivers/parisc/led.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/led.c,v
retrieving revision 1.12
diff -u -p -r1.12 led.c
--- drivers/parisc/led.c	18 Mar 2005 13:17:10 -0000	1.12
+++ drivers/parisc/led.c	22 Mar 2005 06:20:59 -0000
@@ -117,7 +117,9 @@ lcd_info __attribute__((aligned(8))) =
 
 
 /* ptr to LCD/LED-specific function */
-static void (*led_func_ptr) (unsigned char);
+static unsigned int (*led_func_ptr) (unsigned char);
+static unsigned int led_func_pending; /* more work? */
+static unsigned char led_func_last;	/* previous LED setting */
 
 #define LED_HASLCD 1
 #define LED_NOLCD  0
@@ -255,7 +257,7 @@ static int __init led_create_procfs(void
  */
 #define	LED_DATA	0x01	/* data to shift (0:on 1:off) */
 #define	LED_STROBE	0x02	/* strobe to clock data */
-static void led_ASP_driver(unsigned char leds)
+static unsigned int led_ASP_driver(unsigned char leds)
 {
 	int i;
 
@@ -267,6 +269,7 @@ static void led_ASP_driver(unsigned char
 		gsc_writeb( value | LED_STROBE,	 LED_DATA_REG );
 		leds <<= 1;
 	}
+	return 0;
 }
 
 
@@ -275,10 +278,11 @@ static void led_ASP_driver(unsigned char
    ** led_LASI_driver()
    ** 
  */
-static void led_LASI_driver(unsigned char leds)
+static unsigned int led_LASI_driver(unsigned char leds)
 {
 	leds = ~leds;
 	gsc_writeb( leds, LED_DATA_REG );
+	return 0;
 }
 
 
@@ -294,44 +298,75 @@ static void led_LASI_driver(unsigned cha
    ** TODO: check the value of "min_cmd_delay" against the value of HZ.
    **   
  */
-static void led_LCD_driver(unsigned char leds)
+static unsigned int led_LCD_driver(unsigned char leds)
 {
-	static int last_index;	/* 0:heartbeat, 1:disk, 2:lan_in, 3:lan_out */
-	static int last_was_cmd;/* 0: CMD was written last, 1: DATA was last */
-	struct lcd_block *block_ptr;
-	int value;
-
-	switch (last_index) {
-	    case 0:	block_ptr = &lcd_info.heartbeat;
-			value = leds & LED_HEARTBEAT;
-			break;
-	    case 1:	block_ptr = &lcd_info.disk_io;
-			value = leds & LED_DISK_IO;
-			break;					
-	    case 2:	block_ptr = &lcd_info.lan_rcv;
-			value = leds & LED_LAN_RCV;
-			break;					
-	    case 3:	block_ptr = &lcd_info.lan_tx;
-			value = leds & LED_LAN_TX;
-			break;
-	    default:	/* should never happen: */
-			return;
-	}
-
-	if (last_was_cmd) {
-	    /* write the value to the LCD data port */
-    	    gsc_writeb( value ? block_ptr->on : block_ptr->off, LCD_DATA_REG );
+#define LCD_BUFF_SIZE 16
+	static unsigned int data_tail, data_head;
+	static unsigned char data[LCD_BUFF_SIZE];
+	static unsigned char write_data;	/* flip-flop for cmd/data */
+
+	static unsigned char mask[4] = { LED_HEARTBEAT, LED_DISK_IO,
+						LED_LAN_RCV, LED_LAN_TX };
+	static struct lcd_block * blockp[4] = {
+		&lcd_info.heartbeat,
+		&lcd_info.disk_io,
+		&lcd_info.lan_rcv,
+		&lcd_info.lan_tx
+	};
+
+
+
+	if (led_func_pending) {
+		if (write_data) {
+			gsc_writeb( data[data_tail++], LCD_DATA_REG );
+			write_data=0;	/* do command next time */
+		} else {
+			gsc_writeb( data[data_tail++], LCD_CMD_REG );
+			write_data=1;	/* do data next time */
+		}
+		data_tail &= (LCD_BUFF_SIZE - 1);
+
+		/* avoid data[] overfull by not checking for updates
+		 * until after we've worked off pending updates.
+		 */
 	} else {
-	    /* write the command-byte to the LCD command register */
-    	    gsc_writeb( block_ptr->command, LCD_CMD_REG );
-	}    
-	
-	/* now update the vars for the next interrupt iteration */ 
-	if (++last_was_cmd == 2) { /* switch between cmd & data */
-	    last_was_cmd = 0;
-	    if (++last_index == 4) 
-		last_index = 0;	 /* switch back to heartbeat index */
+		unsigned int i;
+		unsigned char ledlast = led_func_last;
+		
+		/* update data and queue writes */
+		for (i = 0; i < 4; i++) {
+			/* check if this "LED" changed since last time */
+			if ((leds ^ ledlast) & mask[i]) {
+				ledlast ^= mask[i];
+
+				/* queue cmd/data pair */
+				data[data_head++] = blockp[i]->command;
+
+				/* Always write pairs and buffer is even size.
+				 * data_head &= (LCD_BUFF_SIZE - 1);
+				 */
+
+				data[data_head++] = (leds & mask[i]) ?
+						blockp[i]->on :
+						blockp[i]->off;
+				data_head &= (LCD_BUFF_SIZE - 1);
+			}
+		}
+
+		led_func_last = ledlast;
+
+		if (data_tail != data_head) {
+			/* start update by writing the cmd byte */
+		    	gsc_writeb(data[data_tail++], LCD_CMD_REG);
+
+			/* don't need to mask data_tail since buffer is
+			 * even sized and this is the first byte of a pair
+			 * 	data_tail &= (LCD_BUFF_SIZE - 1);
+			 */
+			write_data=1;
+		}
 	}
+	return (data_tail != data_head);
 }
 
 
@@ -427,15 +462,14 @@ static __inline__ int led_get_diskio_act
     - optimizations
  */
 
-#define HEARTBEAT_LEN (HZ*6/100)
-#define HEARTBEAT_2ND_RANGE_START (HZ*22/100)
+#define HEARTBEAT_LEN (HZ*12/100)
+#define HEARTBEAT_2ND_RANGE_START (HZ*36/100)
 #define HEARTBEAT_2ND_RANGE_END   (HEARTBEAT_2ND_RANGE_START + HEARTBEAT_LEN)
 
 #define NORMALIZED_COUNT(count) (count/(HZ/100))
 
 static void led_tasklet_func(unsigned long unused)
 {
-	static unsigned char lastleds;
 	unsigned char currentleds; /* stores current value of the LEDs */
 	static unsigned long count; /* static incremented value, not wrapped */
 	static unsigned long count_HZ; /* counter in range 0..HZ */
@@ -444,12 +478,17 @@ static void led_tasklet_func(unsigned lo
 	if (!led_func_ptr)
 	    return;
 
+	if (led_func_pending) {
+	    led_func_pending = led_func_ptr(led_func_last);
+	    return;
+	}
+
 	/* increment the local counters */
 	++count;
 	if (++count_HZ == HZ)
 	    count_HZ = 0;
 
-	currentleds = lastleds;
+	currentleds = led_func_last;
 
 	if (led_heartbeat)
 	{
@@ -480,10 +519,10 @@ static void led_tasklet_func(unsigned lo
 		currentleds = (count_HZ<=(HZ/2)) ? 0 : 0xff;
 	}
 	
-	/* update the LCD/LEDs */
-	if (currentleds != lastleds) {
-	    led_func_ptr(currentleds);
-	    lastleds = currentleds;
+	/* need to update the LCD/LEDs? */
+	if (currentleds != led_func_last) {
+	    led_func_pending = led_func_ptr(currentleds);
+	    led_func_last = currentleds;
 	}
 }
 
@@ -526,7 +565,7 @@ static int led_halt(struct notifier_bloc
 		lcd_print(txt);
 	else
 		if (led_func_ptr)
-			led_func_ptr(0xff); /* turn all LEDs ON */
+			(void) led_func_ptr(0xff); /* turn all LEDs ON */
 	
 	unregister_reboot_notifier(&led_notifier);
 	return NOTIFY_OK;
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Xref: news.gmane.org gmane.linux.ports.parisc:22468

my a500 (gsyprf11) crashed again with do_wp_page() calling
copy_user_page_asm() with bad parameters. Console output appended.

grant

Backtrace:
 [<000000001019b824>] do_wp_page+0x434/0xd88
 [<000000001019dafc>] handle_mm_fault+0x34c/0x9c0
 [<000000001011314c] do_page_fault+0x39c/0x458
 [<0000000010115050>] handle_interruption+0x328/0x790
 [<00000000101070a4>] intr_check_sig+0x0/0xc


Press Q/q to quit, Enter to continue: 


Kernel Fault: Code=15 regs=00000001a993c570 (Addr=0000000210000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  0000000000000000 0000000000000000 000000001019b824 00000001137fffc8
r04-07  0000000010542540 00000001d44ec000 00000000000d0bac 00000001db141760
r08-11  0000000112af13a0 00000000fd869a80 00000001fffffb25 000000015981e680
r12-15  00000001a9730000 00000000fd869af8 00000000001cbfa8 00000000001cccc8
r16-19  00000000f2b153a0 0000000000000000 0000000000000000 0000000000000000
r20-23  0000000000000000 0000000000000000 0000000000000000 00000000105d1098
r24-27  000000000800000f 0000000210000000 00000001d44ed000 0000000010542540
r28-31  0000000112af13a0 00000001a993c540 00000001a993c570 00000000400d61d7
sr0-3   000000000252c800 0000000000000000 0000000000000000 000000000252c800
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101012c0 00000000101012c4
 IIR: 0f2010d3    ISR: 0000000000000000  IOR: 0000000210000000
 CPU:        0   CR30: 00000001a993c000 CR31: 000000001050c000


Press Q/q to quit, Enter to continue: 
 ORIG_R28: 0000000000000000
 IAOQ[0]: copy_user_page_asm+0xa0/0xac
 IAOQ[1]: copy_user_page_asm+0xa4/0xac
 RP(r2): do_wp_page+0x434/0xd88
Kernel panic - not syncing: Kernel Fault


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[d-k copied about ABI[0] change]

The current crop of 2.6.8 kernel images in unstable and testing are
quite good, but a new upload is required to fix some security bugs
and some hppa-related bugs.

This is basically a call for suggestions for what I should backmerge
to 2.6.8 from recent CVS. I will go through the parisc-linux-cvs archive
again and try to pull what I can see, but I'd like a bit of help.

These changes can be categorized in two, ones which change the module
ABI, and ones that don't. 

To help keep the lives of the debian-installer folks sane, I'm not
going to honour suggestions to turn on/off various drivers, unless
I get an explicit ok.

[Non-ABI breaking changes] - The following are candidates for merging
                             immediately.

	- Rebuild against recent kernel source for security fixes.
	- Grant pointed out some recent fixes he made to ccio and sba_iommu
          which fix memory starvation on low-memory machines with iommus.

[ABI breaking changes] - The following will wait until the next ABI
                         rev from kernel-source.

	- Disabling USB_DEBUG in all the configs. This was erroneously
          enabled and is disabled on all other architectures.

There seem to be a few security bugs waiting on a rev of the ABI as
well.

Thanks,
	Kyle M.

[0] - for those following at home, the ABI of a kernel is reflected
      in the package name, like the soname of a shared library.


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On Tue, Mar 22, 2005 at 03:47:51PM -0500, Kyle McMartin wrote:
> This is basically a call for suggestions for what I should backmerge
> to 2.6.8 from recent CVS. I will go through the parisc-linux-cvs archive
> again and try to pull what I can see, but I'd like a bit of help.

In case it wasn't already abundently clear, I'd like you to NOT backport
the IRQ changes.  I think they're stable now, but we don't have time to
fix any resulting bugs before Sarge.

> To help keep the lives of the debian-installer folks sane, I'm not
> going to honour suggestions to turn on/off various drivers, unless
> I get an explicit ok.

I'd like to be sure that the resulting images are suitable for booting
on all the machines that ought to work.  Here's a list of suitable test
machines and notes of what they have:

 - 712 (LASI serial, net and scsi)
 - C3000 (SBA, SuckyIO serial, ns87415 ide, sym2 scsi, Tulip net)
 - K450 (Mux serial, CCIO, zalon scsi, LASI net)
 - A500 (64-bit, SBA, sym2 scsi, Tulip net)

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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On Tue, 22 Mar 2005 15:47:51 -0500, Kyle McMartin wrote:

> [d-k copied about ABI[0] change]
> 
> The current crop of 2.6.8 kernel images in unstable and testing are
> quite good, but a new upload is required to fix some security bugs
> and some hppa-related bugs.
> 
> This is basically a call for suggestions for what I should backmerge
> to 2.6.8 from recent CVS. I will go through the parisc-linux-cvs archive
> again and try to pull what I can see, but I'd like a bit of help.
> 
> These changes can be categorized in two, ones which change the module
> ABI, and ones that don't. 
> 
> To help keep the lives of the debian-installer folks sane, I'm not
> going to honour suggestions to turn on/off various drivers, unless
> I get an explicit ok.
> 
> [Non-ABI breaking changes] - The following are candidates for merging
>                              immediately.
> 
> 	- Rebuild against recent kernel source for security fixes.
> 	- Grant pointed out some recent fixes he made to ccio and sba_iommu
>           which fix memory starvation on low-memory machines with iommus.
> 
> [ABI breaking changes] - The following will wait until the next ABI
>                          rev from kernel-source.
> 
> 	- Disabling USB_DEBUG in all the configs. This was erroneously
>           enabled and is disabled on all other architectures.
> 

Do you know what symbols it affects?

FYI, what I'll do to compare ABIs is, post build:

sed -e 's/^\(.\+\)[[:space:]]\+\(.\+\)[[:space:]]\(.\+\)$/\3 \2 \1/' 
path/to/2.6.8-13/build-686/Module.symvers | sort  > 2.6.8-13.abi
sed -e 's/^\(.\+\)[[:space:]]\+\(.\+\)[[:space:]]\(.\+\)$/\3 \2 \1/' 
path/to/2.6.8-15/build-686/Module.symvers | sort  > 2.6.8-15.abi
diff -u 2.6.8-1{3,5}.abi

That tells you exactly what symbols were added, removed, and modified,
within vmlinux as well as all kernel modules.

> There seem to be a few security bugs waiting on a rev of the ABI as well.
>

Just one; CAN-2005-0449.
 
> Thanks,
> 	Kyle M.
> 
> [0] - for those following at home, the ABI of a kernel is reflected
>       in the package name, like the soname of a shared library.

I usually call it an ABINAME to distinguish it from a library's SONAME.




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Subject: [parisc-linux] Noise from hil_kbd?
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I just got the following when testing HIL:

1986u10:~# modprobe hil_kbd
1986u10:~# HIL KEYB: HIL keyboard found (did = 0xdf, lang = english.us)
input: HIL keyboard, ID: 223
hil_kbd: probe of serio4 failed with error -5
hil_kbd: probe of serio5 failed with error -5
hil_kbd: probe of serio6 failed with error -5
hil_kbd: probe of serio7 failed with error -5
hil_kbd: probe of serio8 failed with error -5
hil_kbd: probe of serio9 failed with error -5
hil_kbd: probe of serio10 failed with error -5
hil_kbd: probe of serio11 failed with error -5
hil_kbd: probe of serio12 failed with error -5
hil_kbd: probe of serio13 failed with error -5
hil_kbd: probe of serio14 failed with error -5
hil_kbd: probe of serio15 failed with error -5
hil_kbd: probe of serio16 failed with error -5
hil_kbd: probe of serio17 failed with error -5

1986u10:~#

The HIL keyboard worked fine, though.  Has anyone else seen this?  I'm
guessing it's related to the recent input layer changes.  I can't see
where the messages are coming from... it's not hil_kbd.c :-(

Also, rmmod hil_kbd hangs, but other processes carry on running okay,
and the HIL mouse still works.

Thanks,
-- 
Stuart Brady
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Xref: news.gmane.org gmane.linux.ports.parisc:22473

On Mon, Mar 21, 2005 at 09:25:13PM -0500, John David Anglin wrote:
> I got a bit paranoid about __put_user after the above bug.  Looking at
> it, I believe that the LP64 version is broken for *(ptr) types of long,
> unsigned long, and pointer types.  I believe that the current code
> puts a 64-bit value instead of the 32-bit value that the 32-bit runtime
> expects for these types.  This is fixed by adding a layer over the
> old __put_user macro to do various type checking.

Hum.  It's definitely a tricky problem.  On its face, you're right;
we shouldn't be writing 64-bit values to a 32-bit userspace.  However,
the compatibility layers often do something like:

asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *off
set, s32 count)
{
        mm_segment_t old_fs = get_fs();
        int ret;
        loff_t lof;
        if (offset && get_user(lof, offset))
                return -EFAULT;
        set_fs(KERNEL_DS);
        ret = sys_sendfile64(out_fd, in_fd, offset ? (loff_t __user *)&lof : NUL
L, count);
        set_fs(old_fs);
        if (offset && put_user(lof, offset))
                return -EFAULT;
        return ret;
}

Then sys_sendfile64() will do a put_user() to write to the loff_t variable,
and writing a 32-bit value to that would definitely be the wrong thing to do.

> The rest of the changes are just warning fixes that I noticed during
> testing.  I don't believe that they have a functional effect.

Those warnings are reminders that nobody's audited this code for ioremap
compatibility:

/*
 * Memory mapped I/O
 *
 * readX()/writeX() do byteswapping and take an ioremapped address
 * __raw_readX()/__raw_writeX() don't byteswap and take an ioremapped address.
 * gsc_*() don't byteswap and operate on physical addresses;
 *   eg dev->hpa or 0xfee00000.
 */

Maybe I need more verbiage in here for people who're tempted to fix these
warnings with more casts, but I doubt people would read it anyway ...

> I tested this with 32 and 64-bit builds of 2.6.12-rc1-pa1 with the
> default c3000 and 64 configs.  I am running the 32-bit build and a
> slighter earlier version survived a gcc build.  I haven't run the
> 64-bit changes.  I now don't see any cast related errors in the builds
> except one in a call to atomic_read.  That's an unrelated problem.

Someone else is fixing that -- in XFS or ieee1394, right?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Hi,

I've been working on my own LCD patch for the J5000 and other LCD front=20
panel-equipped machines.=20

My idea is slightly different to some of the other solutions that have been=
=20
submitted recently.  Rather than come up with a complex method of writing a=
=20
different register each time the tasklet is triggered (which still does not=
=20
guarantee that you are waiting the correct min_cmd_delay), I decided to=20
remove the tasklet, and use a dedicated work queue to drive this.  The=20
primary advantage is that work queue tasks can sleep, whereas tasklets=20
cannot. So, it now sleeps the correct amount of time per LCD writes.   I do=
=20
not see this affecting LED based machines, but for LCD based machines, it=20
should now give you working heartbeats, and more responsive HDD/network=20
symbols also.

It can DEFINITELY be improved further, primarily by increasing the delay=20
between rescheduling the work queue item, so reducing CPU util.  I'll submi=
t=20
a later patch for that pending feedback on this one, which is of course ver=
y=20
welcome!

Thanks,

David

--Boundary-01=_LubQCGHwsJYT4NX
Content-Type: text/x-diff;
  charset="us-ascii";
  name="lcdpatch"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="lcdpatch"

diff -urN vanillabuilt/arch/parisc/kernel/time.c lcdtree/arch/parisc/kernel=
/time.c
=2D-- vanillabuilt/arch/parisc/kernel/time.c	2005-03-22 20:07:26.000000000 =
+0000
+++ lcdtree/arch/parisc/kernel/time.c	2005-03-23 18:29:49.000000000 +0000
@@ -88,14 +88,6 @@
 			write_sequnlock(&xtime_lock);
 		}
 	}
=2D   =20
=2D#ifdef CONFIG_CHASSIS_LCD_LED
=2D	/* Only schedule the led tasklet on cpu 0, and only if it
=2D	 * is enabled.
=2D	 */
=2D	if (cpu =3D=3D 0 && !atomic_read(&led_tasklet.count))
=2D		tasklet_schedule(&led_tasklet);
=2D#endif
=20
 	/* check soft power switch status */
 	if (cpu =3D=3D 0 && !atomic_read(&power_tasklet.count))
diff -urN vanillabuilt/drivers/parisc/led.c lcdtree/drivers/parisc/led.c
=2D-- vanillabuilt/drivers/parisc/led.c	2005-03-22 20:08:25.000000000 +0000
+++ lcdtree/drivers/parisc/led.c	2005-03-23 18:27:40.000000000 +0000
@@ -37,6 +37,7 @@
 #include <linux/proc_fs.h>
 #include <linux/ctype.h>
 #include <linux/blkdev.h>
+#include <linux/workqueue.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/hardware.h>
@@ -46,10 +47,10 @@
 #include <asm/uaccess.h>
=20
 /* The control of the LEDs and LCDs on PARISC-machines have to be done=20
=2D   completely in software. The necessary calculations are done in a task=
let
=2D   which is scheduled at every timer interrupt and since the calculation=
s=20
=2D   may consume relatively much CPU-time some of the calculations can be=
=20
=2D   turned off with the following variables (controlled via procfs) */
+   completely in software. The necessary calculations are done in a work q=
ueue
+   item which is scheduled at every timer interrupt and since the calculat=
ions=20
+   may consume a relatively large amount of CPU-time, some of the calculat=
ions=20
+   can be turned off with the following variables (controlled via procfs) =
*/
=20
 static int led_type =3D -1;
 static int led_heartbeat =3D 1;
@@ -58,6 +59,14 @@
 static char lcd_text[32];
 static char lcd_text_default[32];
=20
+
+static int led_wq_created =3D 0;
+static struct workqueue_struct *led_wq;
+static struct work_struct led_task;
+static void led_work_func(void *);
+static DECLARE_WORK(led_task, led_work_func, NULL);
+
+
 #if 0
 #define DPRINTK(x)	printk x
 #else
@@ -109,13 +118,20 @@
 	.reset_cmd2 =3D		0xc0,
 };
=20
+/* The workqueue must be created at init-time */
+static void start_task(void) {
+	led_wq =3D create_singlethread_workqueue("led_wq");=09
+	queue_work(led_wq, &led_task);
+	led_wq_created =3D 1;
+}
+
+__initcall(start_task);
=20
 /* direct access to some of the lcd_info variables */
 #define LCD_CMD_REG	lcd_info.lcd_cmd_reg_addr	=20
 #define LCD_DATA_REG	lcd_info.lcd_data_reg_addr	=20
 #define LED_DATA_REG	lcd_info.lcd_cmd_reg_addr	/* LASI & ASP only */
=20
=2D
 /* ptr to LCD/LED-specific function */
 static void (*led_func_ptr) (unsigned char);
=20
@@ -285,56 +301,40 @@
 /*
    **=20
    ** led_LCD_driver()
=2D   **=20
=2D   ** The logic of the LCD driver is, that we write at every scheduled c=
all
=2D   ** only to one of LCD_CMD_REG _or_ LCD_DATA_REG - registers.
=2D   ** That way we don't need to let this tasklet busywait for min_cmd_de=
lay
=2D   ** milliseconds.
=2D   **
=2D   ** TODO: check the value of "min_cmd_delay" against the value of HZ.
    **  =20
  */
 static void led_LCD_driver(unsigned char leds)
 {
=2D	static int last_index;	/* 0:heartbeat, 1:disk, 2:lan_in, 3:lan_out */
=2D	static int last_was_cmd;/* 0: CMD was written last, 1: DATA was last */
=2D	struct lcd_block *block_ptr;
=2D	int value;
=2D
=2D	switch (last_index) {
=2D	    case 0:	block_ptr =3D &lcd_info.heartbeat;
=2D			value =3D leds & LED_HEARTBEAT;
=2D			break;
=2D	    case 1:	block_ptr =3D &lcd_info.disk_io;
=2D			value =3D leds & LED_DISK_IO;
=2D			break;				=09
=2D	    case 2:	block_ptr =3D &lcd_info.lan_rcv;
=2D			value =3D leds & LED_LAN_RCV;
=2D			break;				=09
=2D	    case 3:	block_ptr =3D &lcd_info.lan_tx;
=2D			value =3D leds & LED_LAN_TX;
=2D			break;
=2D	    default:	/* should never happen: */
=2D			return;
=2D	}
=2D
=2D	if (last_was_cmd) {
=2D	    /* write the value to the LCD data port */
=2D    	    gsc_writeb( value ? block_ptr->on : block_ptr->off, LCD_DATA_RE=
G );
=2D	} else {
=2D	    /* write the command-byte to the LCD command register */
=2D    	    gsc_writeb( block_ptr->command, LCD_CMD_REG );
=2D	}   =20
=2D=09
=2D	/* now update the vars for the next interrupt iteration */=20
=2D	if (++last_was_cmd =3D=3D 2) { /* switch between cmd & data */
=2D	    last_was_cmd =3D 0;
=2D	    if (++last_index =3D=3D 4)=20
=2D		last_index =3D 0;	 /* switch back to heartbeat index */
+	static int lastleds;
+	static unsigned char mask[4] =3D { LED_HEARTBEAT, LED_DISK_IO,
+		LED_LAN_RCV, LED_LAN_TX };
+=09
+	static struct lcd_block * blockp[4] =3D {
+		&lcd_info.heartbeat,
+		&lcd_info.disk_io,
+		&lcd_info.lan_rcv,
+		&lcd_info.lan_tx
+	};
+=09
+	int i;
+	unsigned long wait_jiffies =3D (lcd_info.min_cmd_delay / 1000000) * HZ;
+	for (i=3D0; i<4; ++i) {
+		if ((leds & mask[i]) !=3D (lastleds & mask[i])) {
+			gsc_writeb( blockp[i]->command, LCD_CMD_REG );
+		=09
+			set_current_state(TASK_UNINTERRUPTIBLE);	=09
+			schedule_timeout(wait_jiffies);=09
+
+			gsc_writeb( leds & mask[i] ? blockp[i]->on :=20
+					blockp[i]->off, LCD_DATA_REG );
+		=09
+			set_current_state(TASK_UNINTERRUPTIBLE);	=09
+			schedule_timeout(wait_jiffies);=09
+		}
 	}
+	lastleds =3D leds;
 }
=20
=2D
 /*
    **=20
    ** led_get_net_activity()
@@ -355,7 +355,7 @@
=20
 	rx_total =3D tx_total =3D 0;
 =09
=2D	/* we are running as tasklet, so locking dev_base=20
+	/* we are running as a work queue item, so locking dev_base=20
 	 * for reading should be OK */
 	read_lock(&dev_base_lock);
 	for (dev =3D dev_base; dev; dev =3D dev->next) {
@@ -417,7 +417,7 @@
=20
=20
 /*
=2D   ** led_tasklet_func()
+   ** led_work_func()
    **=20
    ** is scheduled at every timer interrupt from time.c and
    ** updates the chassis LCD/LED=20
@@ -433,10 +433,11 @@
=20
 #define NORMALIZED_COUNT(count) (count/(HZ/100))
=20
=2Dstatic void led_tasklet_func(unsigned long unused)
+static void led_work_func(void *unused)
 {
 	static unsigned char lastleds;
 	unsigned char currentleds; /* stores current value of the LEDs */
+=09
 	static unsigned long count; /* static incremented value, not wrapped */
 	static unsigned long count_HZ; /* counter in range 0..HZ */
=20
@@ -485,11 +486,11 @@
 	    led_func_ptr(currentleds);
 	    lastleds =3D currentleds;
 	}
+=09
+	/* Requeue ourself to run next jiffy */=09
+	queue_delayed_work(led_wq, &led_task, 1);
 }
=20
=2D/* main led tasklet struct (scheduled from time.c) */
=2DDECLARE_TASKLET_DISABLED(led_tasklet, led_tasklet_func, 0);
=2D
=20
 /*
    ** led_halt()
@@ -519,8 +520,14 @@
 	default:		return NOTIFY_DONE;
 	}
 =09
=2D	/* completely stop the LED/LCD tasklet */
=2D	tasklet_disable(&led_tasklet);
+	/* completely stop the LED/LCD task */
+
+	if (led_wq_created) {
+		if (cancel_delayed_work(&led_task) =3D=3D 0)=20
+			flush_workqueue(led_wq);
+=09
+		destroy_workqueue(led_wq);
+	}
=20
 	if (lcd_info.model =3D=3D DISPLAY_MODEL_LCD)
 		lcd_print(txt);
@@ -587,9 +594,6 @@
 	initialized++;
 	register_reboot_notifier(&led_notifier);
=20
=2D	/* start the led tasklet for the first time */
=2D	tasklet_enable(&led_tasklet);
=2D=09
 	return 0;
 }
=20
@@ -624,7 +628,7 @@
    ** lcd_print()
    **=20
    ** Displays the given string on the LCD-Display of newer machines.
=2D   ** lcd_print() disables the timer-based led tasklet during its=20
+   ** lcd_print() disables the workqueue-based led task during its=20
    ** execution and enables it afterwards again.
    **
  */
@@ -635,9 +639,11 @@
 	if (!led_func_ptr || lcd_info.model !=3D DISPLAY_MODEL_LCD)
 	    return 0;
 =09
=2D	/* temporarily disable the led tasklet */
=2D	tasklet_disable(&led_tasklet);
=2D
+	/* temporarily disable the led task */
+	if (led_wq_created) {
+		if (cancel_delayed_work(&led_task) =3D=3D 0)=20
+			flush_workqueue(led_wq);
+	}
 	/* copy display string to buffer for procfs */
 	strlcpy(lcd_text, str, sizeof(lcd_text));
 =09
@@ -654,8 +660,10 @@
 	    udelay(lcd_info.min_cmd_delay);
 	}
 =09
=2D	/* re-enable the led tasklet */
=2D	tasklet_enable(&led_tasklet);
+	if (led_wq_created) {
+		/* re-enable the led task */
+		queue_work(led_wq, &led_task);
+	}
=20
 	return lcd_info.lcd_width;
 }
diff -urN vanillabuilt/include/asm/led.h lcdtree/include/asm/led.h
=2D-- vanillabuilt/include/asm/led.h	2005-03-22 20:09:08.000000000 +0000
+++ lcdtree/include/asm/led.h	2005-03-23 18:27:47.000000000 +0000
@@ -23,9 +23,6 @@
=20
 #define LED_CMD_REG_NONE 0		/* NULL =3D=3D no addr for the cmd register */
=20
=2D/* led tasklet struct */
=2Dextern struct tasklet_struct led_tasklet;
=2D
 /* register_led_driver() */
 int __init register_led_driver(int model, unsigned long cmd_reg, unsigned =
long data_reg);
=20
diff -urN vanillabuilt/include/asm-parisc/led.h lcdtree/include/asm-parisc/=
led.h
=2D-- vanillabuilt/include/asm-parisc/led.h	2005-03-22 20:09:08.000000000 +=
0000
+++ lcdtree/include/asm-parisc/led.h	2005-03-23 18:27:47.000000000 +0000
@@ -23,9 +23,6 @@
=20
 #define LED_CMD_REG_NONE 0		/* NULL =3D=3D no addr for the cmd register */
=20
=2D/* led tasklet struct */
=2Dextern struct tasklet_struct led_tasklet;
=2D
 /* register_led_driver() */
 int __init register_led_driver(int model, unsigned long cmd_reg, unsigned =
long data_reg);
=20

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On Wed, Mar 23, 2005 at 06:55:07PM +0000, David Pye wrote:
> It can DEFINITELY be improved further, primarily by increasing the delay 
> between rescheduling the work queue item, so reducing CPU util.  I'll submit 
> a later patch for that pending feedback on this one, which is of course very 
> welcome!

one nit after quickly glancing at it:
> +static int led_wq_created = 0;
> +static struct workqueue_struct *led_wq;

led_wq_created isn't needed. Just test led_wq != NULL.

> +	unsigned long wait_jiffies = (lcd_info.min_cmd_delay / 1000000) * HZ;

Won't this work out to be zero?
ISTR min_cmd_delay was "40" or something like that.

grundler <532>fgrep min_cmd_delay drivers/parisc/led.c
        unsigned int min_cmd_delay;     /* delay in uS after cmd-write (LCD only) */
        .min_cmd_delay =        40,
...

Yeah. You want (lcd_info.min_cmd_delay * 1000000)/HZ and this needs
to be rounded up.

> +	for (i=0; i<4; ++i) {
> +		if ((leds & mask[i]) != (lastleds & mask[i])) {
> +			gsc_writeb( blockp[i]->command, LCD_CMD_REG );
> +			
> +			set_current_state(TASK_UNINTERRUPTIBLE);		
> +			schedule_timeout(wait_jiffies);	
> +
> +			gsc_writeb( leds & mask[i] ? blockp[i]->on : 
> +					blockp[i]->off, LCD_DATA_REG );
> +			
> +			set_current_state(TASK_UNINTERRUPTIBLE);		
> +			schedule_timeout(wait_jiffies);	
> +		}

I like this *alot* better. Very nice.


thanks,
grant
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> > I got a bit paranoid about __put_user after the above bug.  Looking at
> > it, I believe that the LP64 version is broken for *(ptr) types of long,
> > unsigned long, and pointer types.  I believe that the current code
> > puts a 64-bit value instead of the 32-bit value that the 32-bit runtime
> > expects for these types.  This is fixed by adding a layer over the
> > old __put_user macro to do various type checking.
> 
> Hum.  It's definitely a tricky problem.  On its face, you're right;
> we shouldn't be writing 64-bit values to a 32-bit userspace.  However,
> the compatibility layers often do something like:
> 
> asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *off
> set, s32 count)
> {
>         mm_segment_t old_fs = get_fs();
>         int ret;
>         loff_t lof;
>         if (offset && get_user(lof, offset))
>                 return -EFAULT;
>         set_fs(KERNEL_DS);
>         ret = sys_sendfile64(out_fd, in_fd, offset ? (loff_t __user *)&lof : NUL
> L, count);
>         set_fs(old_fs);
>         if (offset && put_user(lof, offset))
>                 return -EFAULT;
>         return ret;
> }
> 
> Then sys_sendfile64() will do a put_user() to write to the loff_t variable,
> and writing a 32-bit value to that would definitely be the wrong thing to do.

I don't believe that the proposed change would do that.  In this case,
the type of *(ptr) is long long (s64).  This is one of the special cases
in the __LP64__ __builtin_choose_expr check.  If we have a 64-bit value
that is 64-bits in the 32-bit runtime (long long, unsigned long long
or double), we don't cast the pointer (i.e., it still points to a 64-bit
type).  I used s64 and u64 to shorten the line length in the macro.
They are defined as long long and unsigned long long.

__builtin_types_compatible_p is strict in determining whether two
types are compatible.  For example, a long is not compatible with a
long long even though they have the the same size in hppa64.  Similarly,
a char * and int * are not compatible.  I checked the long versus
long long compatibility under hpux.

There are definitely places where put_user is used to put pointers.
I believe that there also some places where a long is transferred.

The put_user uses with pointers cause warnings in 32-bit builds
because the u64 cast in the following code snippet

#define __put_kernel_asm64(__val,ptr) do {                  \
        u64 __val64 = (u64)__val;                           \

is undefined (it's not defined in the C standard how the pointer
should be extended).  As I tried to indicate in my previous mail,
this isn't a real problem as this code patch isn't used in this
case.  GCC should delete the code but there may be problems in doing
this before the warning is generated.  I like to eliminate warnings
such as this as they could easily be real problems.

Here is a place in arch/parisc/kernel/signal.c where there is a
problem with transferring a pointer:

          err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_s

The type of ss_sp is void *.  There are also similar problems in
kernel/signal.c (si_ptr and si_addr).  In this case, the current version
of put_user will transfer 64-bits when using a hppa64 kernel.

> > The rest of the changes are just warning fixes that I noticed during
> > testing.  I don't believe that they have a functional effect.
> 
> Those warnings are reminders that nobody's audited this code for ioremap
> compatibility:

Ok :(

> Someone else is fixing that -- in XFS or ieee1394, right?

These are the warnings that I was referring to:

  CC [M]  fs/xfs/xfs_inode_item.o
fs/xfs/xfs_inode_item.c: In function `xfs_inode_item_pushbuf':
fs/xfs/xfs_inode_item.c:803: warning: passing arg 1 of `atomic_read' from incompatible pointer type
fs/xfs/xfs_inode_item.c:825: warning: passing arg 1 of `atomic_read' from incompatible pointer type

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

#include <stdio.h>
int
main ()
{
  printf ("%d\n", __builtin_types_compatible_p (long, long long));
  return 0;
}

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> Here is a place in arch/parisc/kernel/signal.c where there is a
> problem with transferring a pointer:
> 
>           err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_s
> 
> The type of ss_sp is void *.  There are also similar problems in
> kernel/signal.c (si_ptr and si_addr).  In this case, the current version
> of put_user will transfer 64-bits when using a hppa64 kernel.

I should have added that that the kernel should only transfer 32 bits in
this case.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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On Wed, Mar 23, 2005 at 01:18:31PM -0700, Grant Grundler wrote:
> You want (lcd_info.min_cmd_delay * 1000000)/HZ

Of course this is wrong...David was almost right in his original
and got it right in a followup:
	(lcd_info.min_cmd_delay * HZ)/1000000

ie (us * Hz)/us == Hz and that's what we want.

sorry,
grant
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>  GCC 4 already produces the same code for these functions*.  Attached is the
> final_cleanup dumb of an O2 build of this file.

My impression is that GCC 4 is doing a better job with 64-bit code
than previous versions although I haven't run any benchmarks.  It
could be as much as a 10% improvement in performance on average.
However, 64-bit code is still slower than 32-bit code.

>>From a PA standpoint, GCC 4 is ready for serious testing.  All testsuite
bugs have been squashed in C and C++.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Mar 24, 2005 at 11:19:28AM -0500, John David Anglin wrote:
...
> From a PA standpoint, GCC 4 is ready for serious testing.  All testsuite
> bugs have been squashed in C and C++.

Is there a .deb or tarball available I can drop on a bunch of machines?

I'd be happy to test for kernel builds.

thanks,
grant
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In-Reply-To: <20050324165947.GA29361@colo.lackof.org> from "Grant Grundler" at
	Mar 24, 2005 09:59:47 am
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> On Thu, Mar 24, 2005 at 11:19:28AM -0500, John David Anglin wrote:
> ...
> > From a PA standpoint, GCC 4 is ready for serious testing.  All testsuite
> > bugs have been squashed in C and C++.
> 
> Is there a .deb or tarball available I can drop on a bunch of machines?

There is a recent build in /home/dave/opt/gnu/gcc/gcc-4.0.0 on gsyprf11.
Unfortunately, it was built using --with-as= and --with-ld=, so it isn't
very portable.  I could do a build with the system's as and ld that
would be more portable.  I'm not setup to generate a .deb that would
be system installable.

You are welcome to try the version in /home/dave/opt/gnu/gcc/gcc-4.0.0.
It's easily turned into a tarball.

> I'd be happy to test for kernel builds.

That would provide useful.  In the past, there usually have been new
features or deprecated features that have caused problems.  4.0 has a
new option, -mfixed_range=, that was introduced so that a small range
of fp registers could be used for the xmpyu multiplication insn.  It
might be useful to experiment with this option to see if it useful.
This was borrowed from ia64.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: David Pye <dmp@davidmpye.dyndns.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] J5000 LED LCD patch (take 2)
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Hi,

Attached is the latest iteration of my patch, with the feedback from Grant=
=20
Grundler incorporated (hopefully!)

The other changes are:

Adjust the scheduling so the work queue item runs only every 5 jiffies,=20
instead of each one (as per the original tasklet). This means we can do a=20
couple more calculations, and still hopefully be ahead in the efficiency=20
stakes.

Set and enforce a minimum on-time for LEDs - this prevents the LCD ones=20
'ghosting' under rapid LAN/IO on/off. This also applies to LED systems too.=
=20
The minimum on-time is currently 100mS - feedback welcome as to whether thi=
s=20
should be made LCD-only, or adjusted up/downwards. (This is necessary becau=
se=20
once the min_cmd_delay has been taken into effect, rapidly fluttering LAN/I=
O=20
lcd symbols cause the heartbeat to stutter slightly).

On my J5000, this gives a perfectly uniform heartbeat regardless of lan/io=
=20
activity, and also prevents the lan/io symbols ghosting during continuous=20
traffic.

As before, comments/suggestions welcome!

Cheers,

David

--Boundary-01=_YuwQCYduMr9ZcrP
Content-Type: text/x-diff;
  charset="us-ascii";
  name="led_lcd_patch"
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	filename="led_lcd_patch"

diff -urpN linux-2.6.12-rc1-pa2/arch/parisc/kernel/time.c worktree/arch/par=
isc/kernel/time.c
=2D-- linux-2.6.12-rc1-pa2/arch/parisc/kernel/time.c	2004-10-21 19:58:24.00=
0000000 +0100
+++ worktree/arch/parisc/kernel/time.c	2005-03-24 01:04:32.000000000 +0000
@@ -89,14 +89,6 @@ irqreturn_t timer_interrupt(int irq, voi
 		}
 	}
    =20
=2D#ifdef CONFIG_CHASSIS_LCD_LED
=2D	/* Only schedule the led tasklet on cpu 0, and only if it
=2D	 * is enabled.
=2D	 */
=2D	if (cpu =3D=3D 0 && !atomic_read(&led_tasklet.count))
=2D		tasklet_schedule(&led_tasklet);
=2D#endif
=2D
 	/* check soft power switch status */
 	if (cpu =3D=3D 0 && !atomic_read(&power_tasklet.count))
 		tasklet_schedule(&power_tasklet);
diff -urpN linux-2.6.12-rc1-pa2/drivers/parisc/led.c worktree/drivers/paris=
c/led.c
=2D-- linux-2.6.12-rc1-pa2/drivers/parisc/led.c	2005-03-18 13:17:10.0000000=
00 +0000
+++ worktree/drivers/parisc/led.c	2005-03-24 01:07:08.000000000 +0000
@@ -18,6 +18,9 @@
  * Changes:
  *      - Audit copy_from_user in led_proc_write.
  *                                Daniele Bellucci <bellucda@tiscali.it>
+ *	- Switch from using a tasklet to a work queue, so the led_LCD_driver
+ *	  	can sleep.
+ *	  			  David Pye <dmp@davidmpye.dyndns.org>
  */
=20
 #include <linux/config.h>
@@ -37,6 +40,7 @@
 #include <linux/proc_fs.h>
 #include <linux/ctype.h>
 #include <linux/blkdev.h>
+#include <linux/workqueue.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/hardware.h>
@@ -46,9 +50,9 @@
 #include <asm/uaccess.h>
=20
 /* The control of the LEDs and LCDs on PARISC-machines have to be done=20
=2D   completely in software. The necessary calculations are done in a task=
let
=2D   which is scheduled at every timer interrupt and since the calculation=
s=20
=2D   may consume relatively much CPU-time some of the calculations can be=
=20
+   completely in software. The necessary calculations are done in a work q=
ueue
+   task which is scheduled regularly, and since the calculations may consu=
me a=20
+   relatively large amount of CPU time, some of the calculations can be=20
    turned off with the following variables (controlled via procfs) */
=20
 static int led_type =3D -1;
@@ -58,13 +62,16 @@ static int led_lanrxtx =3D 1;
 static char lcd_text[32];
 static char lcd_text_default[32];
=20
+static struct workqueue_struct *led_wq;
+static void led_work_func(void *);
+static DECLARE_WORK(led_task, led_work_func, NULL);
+
 #if 0
 #define DPRINTK(x)	printk x
 #else
 #define DPRINTK(x)
 #endif
=20
=2D
 struct lcd_block {
 	unsigned char command;	/* stores the command byte      */
 	unsigned char on;	/* value for turning LED on     */
@@ -115,12 +122,24 @@ lcd_info __attribute__((aligned(8))) =3D
 #define LCD_DATA_REG	lcd_info.lcd_data_reg_addr	=20
 #define LED_DATA_REG	lcd_info.lcd_cmd_reg_addr	/* LASI & ASP only */
=20
+#define LED_HASLCD 1
+#define LED_NOLCD  0
+
+/* The workqueue must be created at init-time */
+static int start_task(void)=20
+{=09
+	/* Create the work queue and queue the LED task */
+	led_wq =3D create_singlethread_workqueue("led_wq");=09
+	queue_work(led_wq, &led_task);
+
+	return 0;
+}
+
+device_initcall(start_task);
=20
 /* ptr to LCD/LED-specific function */
 static void (*led_func_ptr) (unsigned char);
=20
=2D#define LED_HASLCD 1
=2D#define LED_NOLCD  0
 #ifdef CONFIG_PROC_FS
 static int led_proc_read(char *page, char **start, off_t off, int count,=20
 	int *eof, void *data)
@@ -285,53 +304,41 @@ static void led_LASI_driver(unsigned cha
 /*
    **=20
    ** led_LCD_driver()
=2D   **=20
=2D   ** The logic of the LCD driver is, that we write at every scheduled c=
all
=2D   ** only to one of LCD_CMD_REG _or_ LCD_DATA_REG - registers.
=2D   ** That way we don't need to let this tasklet busywait for min_cmd_de=
lay
=2D   ** milliseconds.
=2D   **
=2D   ** TODO: check the value of "min_cmd_delay" against the value of HZ.
    **  =20
  */
 static void led_LCD_driver(unsigned char leds)
 {
=2D	static int last_index;	/* 0:heartbeat, 1:disk, 2:lan_in, 3:lan_out */
=2D	static int last_was_cmd;/* 0: CMD was written last, 1: DATA was last */
=2D	struct lcd_block *block_ptr;
=2D	int value;
=2D
=2D	switch (last_index) {
=2D	    case 0:	block_ptr =3D &lcd_info.heartbeat;
=2D			value =3D leds & LED_HEARTBEAT;
=2D			break;
=2D	    case 1:	block_ptr =3D &lcd_info.disk_io;
=2D			value =3D leds & LED_DISK_IO;
=2D			break;				=09
=2D	    case 2:	block_ptr =3D &lcd_info.lan_rcv;
=2D			value =3D leds & LED_LAN_RCV;
=2D			break;				=09
=2D	    case 3:	block_ptr =3D &lcd_info.lan_tx;
=2D			value =3D leds & LED_LAN_TX;
=2D			break;
=2D	    default:	/* should never happen: */
=2D			return;
=2D	}
+	static int lastleds, i;
+	static unsigned char mask[4] =3D { LED_HEARTBEAT, LED_DISK_IO,
+		LED_LAN_RCV, LED_LAN_TX };
+=09
+	static struct lcd_block * blockp[4] =3D {
+		&lcd_info.heartbeat,
+		&lcd_info.disk_io,
+		&lcd_info.lan_rcv,
+		&lcd_info.lan_tx
+	};
=20
=2D	if (last_was_cmd) {
=2D	    /* write the value to the LCD data port */
=2D    	    gsc_writeb( value ? block_ptr->on : block_ptr->off, LCD_DATA_RE=
G );
=2D	} else {
=2D	    /* write the command-byte to the LCD command register */
=2D    	    gsc_writeb( block_ptr->command, LCD_CMD_REG );
=2D	}   =20
=2D=09
=2D	/* now update the vars for the next interrupt iteration */=20
=2D	if (++last_was_cmd =3D=3D 2) { /* switch between cmd & data */
=2D	    last_was_cmd =3D 0;
=2D	    if (++last_index =3D=3D 4)=20
=2D		last_index =3D 0;	 /* switch back to heartbeat index */
+	/* Convert min_cmd_delay (uS) to jiffies */
+	unsigned long wait_jiffies =3D 1 + (lcd_info.min_cmd_delay * HZ) / 100000=
0;
+
+	for (i=3D0; i<4; ++i)=20
+	{
+		if ((leds & mask[i]) !=3D (lastleds & mask[i]))=20
+		{
+			gsc_writeb( blockp[i]->command, LCD_CMD_REG );
+		=09
+			set_current_state(TASK_UNINTERRUPTIBLE);	=09
+			schedule_timeout(wait_jiffies);=09
+
+			gsc_writeb( leds & mask[i] ? blockp[i]->on :=20
+					blockp[i]->off, LCD_DATA_REG );
+		=09
+			set_current_state(TASK_UNINTERRUPTIBLE);	=09
+			schedule_timeout(wait_jiffies);=09
+		}
 	}
+	lastleds =3D leds;
 }
=20
=20
@@ -355,7 +362,7 @@ static __inline__ int led_get_net_activi
=20
 	rx_total =3D tx_total =3D 0;
 =09
=2D	/* we are running as tasklet, so locking dev_base=20
+	/* we are running as a workqueue task, so locking dev_base=20
 	 * for reading should be OK */
 	read_lock(&dev_base_lock);
 	for (dev =3D dev_base; dev; dev =3D dev->next) {
@@ -417,10 +424,9 @@ static __inline__ int led_get_diskio_act
=20
=20
 /*
=2D   ** led_tasklet_func()
+   ** led_work_func()
    **=20
=2D   ** is scheduled at every timer interrupt from time.c and
=2D   ** updates the chassis LCD/LED=20
+   ** is scheduled every 5 jiffies and updates the chassis LCD/LED=20
=20
     TODO:
     - display load average (older machines like 715/64 have 4 "free" LED's=
 for that)
@@ -431,66 +437,102 @@ static __inline__ int led_get_diskio_act
 #define HEARTBEAT_2ND_RANGE_START (HZ*22/100)
 #define HEARTBEAT_2ND_RANGE_END   (HEARTBEAT_2ND_RANGE_START + HEARTBEAT_L=
EN)
=20
=2D#define NORMALIZED_COUNT(count) (count/(HZ/100))
+#define LED_MINIMUM_ON_TIME (HZ*10/100)
=20
=2Dstatic void led_tasklet_func(unsigned long unused)
+static void led_work_func (void *unused)
 {
 	static unsigned char lastleds;
=2D	unsigned char currentleds; /* stores current value of the LEDs */
=2D	static unsigned long count; /* static incremented value, not wrapped */
 	static unsigned long count_HZ; /* counter in range 0..HZ */
=20
+	static unsigned long diskio_on_jiffies;
+	static unsigned long lantx_on_jiffies;
+	static unsigned long lanrcv_on_jiffies;
+
+	unsigned char currentleds =3D 0; /* stores current value of the LEDs */
+=09
 	/* exit if not initialized */
 	if (!led_func_ptr)
 	    return;
=20
=2D	/* increment the local counters */
=2D	++count;
=2D	if (++count_HZ =3D=3D HZ)
+	/* increment the local counter */
+	count_HZ +=3D 5;
+	if (count_HZ =3D=3D HZ)
 	    count_HZ =3D 0;
=20
=2D	currentleds =3D lastleds;
=2D
 	if (led_heartbeat)
 	{
 		/* flash heartbeat-LED like a real heart (2 x short then a long delay) */
 		if (count_HZ<HEARTBEAT_LEN ||=20
 		    (count_HZ>=3DHEARTBEAT_2ND_RANGE_START && count_HZ<HEARTBEAT_2ND_RAN=
GE_END))=20
 		    currentleds |=3D LED_HEARTBEAT;
=2D		else
=2D		    currentleds &=3D ~LED_HEARTBEAT;
 	}
=20
=2D	/* look for network activity and flash LEDs respectively */
=2D	if (led_lanrxtx && ((NORMALIZED_COUNT(count)+(8/2)) & 7) =3D=3D 0)
+	/* If the leds are on, but should be turned off, make sure they have been=
 on for
+	 * the minimum time, to prevent 'flutter'=20
+	 */
+
+	/* look for network activity and flash LEDs accordingly */
+	if (led_lanrxtx)
 	{
=2D		currentleds &=3D ~(LED_LAN_RCV | LED_LAN_TX);
=2D		currentleds |=3D led_get_net_activity();
+		unsigned char new_lan_leds =3D led_get_net_activity();
+=09
+		/* TX LED */
+		if (new_lan_leds & LED_LAN_TX)=20
+		{
+			currentleds |=3D LED_LAN_TX;
+			lantx_on_jiffies =3D jiffies;
+		}
+		else if (lastleds & LED_LAN_TX && time_before(jiffies, lantx_on_jiffies =
+ LED_MINIMUM_ON_TIME))
+		{
+			currentleds |=3D LED_LAN_TX;
+		}
+	=09
+		/* RCV LED */
+
+		if (new_lan_leds & LED_LAN_RCV)=20
+		{
+			currentleds |=3D LED_LAN_RCV;
+			lanrcv_on_jiffies =3D jiffies;
+		}
+		else if (lastleds & LED_LAN_RCV && time_before(jiffies, lanrcv_on_jiffie=
s + LED_MINIMUM_ON_TIME))=20
+		{
+			currentleds |=3D LED_LAN_RCV;
+		}
 	}
=20
=2D	/* avoid to calculate diskio-stats at same irq  as netio-stats */
=2D	if (led_diskio && (NORMALIZED_COUNT(count) & 7) =3D=3D 0)
+	/* Calculate disk IO */
+	if (led_diskio)
 	{
=2D		currentleds &=3D ~LED_DISK_IO;
=2D		currentleds |=3D led_get_diskio_activity();
+		unsigned char new_io_led =3D led_get_diskio_activity();
+	=09
+		if (new_io_led & LED_DISK_IO)=20
+		{
+			currentleds |=3D LED_DISK_IO;
+			diskio_on_jiffies =3D jiffies;
+		}
+		else if (lastleds & LED_DISK_IO && time_before(jiffies, diskio_on_jiffie=
s + LED_MINIMUM_ON_TIME))=20
+		{
+			currentleds |=3D LED_DISK_IO;
+		}
 	}
=20
 	/* blink all LEDs twice a second if we got an Oops (HPMC) */
=2D	if (oops_in_progress) {
+	if (oops_in_progress)=20
+	{
 		currentleds =3D (count_HZ<=3D(HZ/2)) ? 0 : 0xff;
 	}
 =09
 	/* update the LCD/LEDs */
=2D	if (currentleds !=3D lastleds) {
=2D	    led_func_ptr(currentleds);
=2D	    lastleds =3D currentleds;
+	if (currentleds !=3D lastleds)
+	{
+		led_func_ptr(currentleds);
+		lastleds =3D currentleds;
 	}
+=09
+	/* Requeue ourself to run in 5 jiffies */=09
+	queue_delayed_work(led_wq, &led_task, 5);
 }
=20
=2D/* main led tasklet struct (scheduled from time.c) */
=2DDECLARE_TASKLET_DISABLED(led_tasklet, led_tasklet_func, 0);
=2D
=2D
 /*
    ** led_halt()
    **=20
@@ -519,9 +561,13 @@ static int led_halt(struct notifier_bloc
 	default:		return NOTIFY_DONE;
 	}
 =09
=2D	/* completely stop the LED/LCD tasklet */
=2D	tasklet_disable(&led_tasklet);
=2D
+	/* Cancel the work item and delete the queue */
+	if (led_wq) {
+		if (cancel_delayed_work(&led_task) =3D=3D 0)=20
+			flush_workqueue(led_wq);
+		destroy_workqueue(led_wq);
+	}
+=20
 	if (lcd_info.model =3D=3D DISPLAY_MODEL_LCD)
 		lcd_print(txt);
 	else
@@ -586,9 +632,6 @@ int __init register_led_driver(int model
 	initialized++;
 	register_reboot_notifier(&led_notifier);
=20
=2D	/* start the led tasklet for the first time */
=2D	tasklet_enable(&led_tasklet);
=2D=09
 	return 0;
 }
=20
@@ -623,7 +666,7 @@ void __init register_led_regions(void)
    ** lcd_print()
    **=20
    ** Displays the given string on the LCD-Display of newer machines.
=2D   ** lcd_print() disables the timer-based led tasklet during its=20
+   ** lcd_print() disables the timer-based led work task during its=20
    ** execution and enables it afterwards again.
    **
  */
@@ -634,8 +677,13 @@ int lcd_print( char *str )
 	if (!led_func_ptr || lcd_info.model !=3D DISPLAY_MODEL_LCD)
 	    return 0;
 =09
=2D	/* temporarily disable the led tasklet */
=2D	tasklet_disable(&led_tasklet);
+	/* temporarily disable the led work task */
+	if (led_wq) {
+		if (cancel_delayed_work(&led_task) =3D=3D 0)=20
+			flush_workqueue(led_wq);
+	}
+ 	/* copy display string to buffer for procfs */
+ 	strlcpy(lcd_text, str, sizeof(lcd_text));
=20
 	/* copy display string to buffer for procfs */
 	strlcpy(lcd_text, str, sizeof(lcd_text));
@@ -653,8 +701,10 @@ int lcd_print( char *str )
 	    udelay(lcd_info.min_cmd_delay);
 	}
 =09
=2D	/* re-enable the led tasklet */
=2D	tasklet_enable(&led_tasklet);
+	/* re-queue the work */
+	if (led_wq) {
+		queue_work(led_wq, &led_task);
+	}
=20
 	return lcd_info.lcd_width;
 }
diff -urpN linux-2.6.12-rc1-pa2/include/asm-parisc/led.h worktree/include/a=
sm-parisc/led.h
=2D-- linux-2.6.12-rc1-pa2/include/asm-parisc/led.h	2004-12-30 08:07:48.000=
000000 +0000
+++ worktree/include/asm-parisc/led.h	2005-03-24 01:04:54.000000000 +0000
@@ -23,9 +23,6 @@
=20
 #define LED_CMD_REG_NONE 0		/* NULL =3D=3D no addr for the cmd register */
=20
=2D/* led tasklet struct */
=2Dextern struct tasklet_struct led_tasklet;
=2D
 /* register_led_driver() */
 int __init register_led_driver(int model, unsigned long cmd_reg, unsigned =
long data_reg);
=20

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_______________________________________________
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http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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Subject: Re: [parisc-linux] [gcc] should we teach gcc some new tricks?
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Grant Grundler <grundler@parisc-linux.org> writes:

> On Thu, Mar 24, 2005 at 11:19:28AM -0500, John David Anglin wrote:
> ...
> > From a PA standpoint, GCC 4 is ready for serious testing.  All testsuite
> > bugs have been squashed in C and C++.
> 
> Is there a .deb or tarball available I can drop on a bunch of machines?
> 
> I'd be happy to test for kernel builds.
> 
> thanks,
> grant
> 

 Try the gcc-snapshot package.

-- 
Thanks,
Jim

http://www.student.cs.uwaterloo.ca/~ja2morri/
http://phython.blogspot.com
http://open.nit.ca/wiki/?page=jim
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Hi,

Attached is another patch to the LED LCD code, which prints the initial=20
'default lcd text' to the display slightly later than previously.

This avoids it being overwritten by the chassis code which is displayed on =
my=20
J5000 shortly after kernel init (INI CC01). The device_init function create=
d=20
for the workqueue is an ideal place to do the initial lcd_print now, afaics.

My previous patch needs to be applied first, then this one.

Thanks,

David

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diff -urpN oldtree/drivers/parisc/led.c newtree/drivers/parisc/led.c
=2D-- oldtree/drivers/parisc/led.c	2005-03-24 19:17:25.000000000 +0000
+++ newtree/drivers/parisc/led.c	2005-03-24 19:19:07.000000000 +0000
@@ -128,6 +128,10 @@ lcd_info __attribute__((aligned(8))) =3D
 /* The workqueue must be created at init-time */
 static int start_task(void)=20
 {=09
+	/* Print the display text to the lcd if present now. This avoids it
+	 * being overwritten with any boot-time chassis codes */
+	if (led_type =3D=3D LED_HASLCD) lcd_print( lcd_text_default );
+
 	/* Create the work queue and queue the LED task */
 	led_wq =3D create_singlethread_workqueue("led_wq");=09
 	queue_work(led_wq, &led_task);
@@ -602,7 +606,6 @@ int __init register_led_driver(int model
 		printk(KERN_INFO "LCD display at %lx,%lx registered\n",=20
 			LCD_CMD_REG , LCD_DATA_REG);
 		led_func_ptr =3D led_LCD_driver;
=2D		lcd_print( lcd_text_default );
 		led_type =3D LED_HASLCD;
 		break;
=20

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Subject: Re: [parisc-linux] J5000 LED LCD patch (take 2)
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On Thu, 2005-03-24 at 18:48 +0000, David Pye wrote:
> +                       set_current_state(TASK_UNINTERRUPTIBLE);                
> +                       schedule_timeout(wait_jiffies); 

The two uses of this should become msleep().  schedule_timeout() is
deprecated in the kernel now.

> +       /* Requeue ourself to run in 5 jiffies */       
> +       queue_delayed_work(led_wq, &led_task, 5);

This is wrong too.  The value of HZ (the rate at which jiffies tick) has
been tampered with several times over the course of the years.  All
timing related quantites need to be expressed in terms of HZ to ensure
they remain constant.

We actually have a class of machines for whom HZ=100 so you'll be
waiting ten times longer than you expect on these...


> +               if (cancel_delayed_work(&led_task) == 0) 
> +                       flush_workqueue(led_wq);

This should really be done using 

cancel_rearming_delayed_workqueue()

Unfortunately, someone needs to get that symbol exported.

This added strlcpy is redundant:


> +       /* copy display string to buffer for procfs */
> +       strlcpy(lcd_text, str, sizeof(lcd_text));
>  
>         /* copy display string to buffer for procfs */
>         strlcpy(lcd_text, str, sizeof(lcd_text));
> 

James



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Subject: Re: [parisc-linux] J5000 LED LCD patch (take 2)
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Hi,

Thanks for your feedback.

I wish the kernel driver development book clearly marked what was deprecate=
d=20
these days </whinge>

I believe the attached patch fixes the points you noted, with the exception=
 of=20
not yet using cancel_rearming_delayed_workqueue().  =20

The second patch I submitted still applies okay after this one. (offset -2=
=20
lines thanks to the removal of the duplicated strlcpy).

Thanks,

David

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Content-Type: text/x-diff;
  charset="iso-8859-1";
  name="led_lcd_patch"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="led_lcd_patch"

diff -urpN oldtree/arch/parisc/kernel/time.c newtree/arch/parisc/kernel/tim=
e.c
=2D-- oldtree/arch/parisc/kernel/time.c	2004-10-21 19:58:24.000000000 +0100
+++ newtree/arch/parisc/kernel/time.c	2005-03-24 20:31:59.000000000 +0000
@@ -89,14 +89,6 @@ irqreturn_t timer_interrupt(int irq, voi
 		}
 	}
    =20
=2D#ifdef CONFIG_CHASSIS_LCD_LED
=2D	/* Only schedule the led tasklet on cpu 0, and only if it
=2D	 * is enabled.
=2D	 */
=2D	if (cpu =3D=3D 0 && !atomic_read(&led_tasklet.count))
=2D		tasklet_schedule(&led_tasklet);
=2D#endif
=2D
 	/* check soft power switch status */
 	if (cpu =3D=3D 0 && !atomic_read(&power_tasklet.count))
 		tasklet_schedule(&power_tasklet);
diff -urpN oldtree/drivers/parisc/led.c newtree/drivers/parisc/led.c
=2D-- oldtree/drivers/parisc/led.c	2005-03-18 13:17:10.000000000 +0000
+++ newtree/drivers/parisc/led.c	2005-03-24 20:32:49.000000000 +0000
@@ -18,6 +18,9 @@
  * Changes:
  *      - Audit copy_from_user in led_proc_write.
  *                                Daniele Bellucci <bellucda@tiscali.it>
+ *	- Switch from using a tasklet to a work queue, so the led_LCD_driver
+ *	  	can sleep.
+ *	  			  David Pye <dmp@davidmpye.dyndns.org>
  */
=20
 #include <linux/config.h>
@@ -37,6 +40,7 @@
 #include <linux/proc_fs.h>
 #include <linux/ctype.h>
 #include <linux/blkdev.h>
+#include <linux/workqueue.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/hardware.h>
@@ -46,9 +50,9 @@
 #include <asm/uaccess.h>
=20
 /* The control of the LEDs and LCDs on PARISC-machines have to be done=20
=2D   completely in software. The necessary calculations are done in a task=
let
=2D   which is scheduled at every timer interrupt and since the calculation=
s=20
=2D   may consume relatively much CPU-time some of the calculations can be=
=20
+   completely in software. The necessary calculations are done in a work q=
ueue
+   task which is scheduled regularly, and since the calculations may consu=
me a=20
+   relatively large amount of CPU time, some of the calculations can be=20
    turned off with the following variables (controlled via procfs) */
=20
 static int led_type =3D -1;
@@ -58,13 +62,16 @@ static int led_lanrxtx =3D 1;
 static char lcd_text[32];
 static char lcd_text_default[32];
=20
+static struct workqueue_struct *led_wq;
+static void led_work_func(void *);
+static DECLARE_WORK(led_task, led_work_func, NULL);
+
 #if 0
 #define DPRINTK(x)	printk x
 #else
 #define DPRINTK(x)
 #endif
=20
=2D
 struct lcd_block {
 	unsigned char command;	/* stores the command byte      */
 	unsigned char on;	/* value for turning LED on     */
@@ -115,12 +122,24 @@ lcd_info __attribute__((aligned(8))) =3D
 #define LCD_DATA_REG	lcd_info.lcd_data_reg_addr	=20
 #define LED_DATA_REG	lcd_info.lcd_cmd_reg_addr	/* LASI & ASP only */
=20
+#define LED_HASLCD 1
+#define LED_NOLCD  0
+
+/* The workqueue must be created at init-time */
+static int start_task(void)=20
+{=09
+	/* Create the work queue and queue the LED task */
+	led_wq =3D create_singlethread_workqueue("led_wq");=09
+	queue_work(led_wq, &led_task);
+
+	return 0;
+}
+
+device_initcall(start_task);
=20
 /* ptr to LCD/LED-specific function */
 static void (*led_func_ptr) (unsigned char);
=20
=2D#define LED_HASLCD 1
=2D#define LED_NOLCD  0
 #ifdef CONFIG_PROC_FS
 static int led_proc_read(char *page, char **start, off_t off, int count,=20
 	int *eof, void *data)
@@ -285,53 +304,37 @@ static void led_LASI_driver(unsigned cha
 /*
    **=20
    ** led_LCD_driver()
=2D   **=20
=2D   ** The logic of the LCD driver is, that we write at every scheduled c=
all
=2D   ** only to one of LCD_CMD_REG _or_ LCD_DATA_REG - registers.
=2D   ** That way we don't need to let this tasklet busywait for min_cmd_de=
lay
=2D   ** milliseconds.
=2D   **
=2D   ** TODO: check the value of "min_cmd_delay" against the value of HZ.
    **  =20
  */
 static void led_LCD_driver(unsigned char leds)
 {
=2D	static int last_index;	/* 0:heartbeat, 1:disk, 2:lan_in, 3:lan_out */
=2D	static int last_was_cmd;/* 0: CMD was written last, 1: DATA was last */
=2D	struct lcd_block *block_ptr;
=2D	int value;
=2D
=2D	switch (last_index) {
=2D	    case 0:	block_ptr =3D &lcd_info.heartbeat;
=2D			value =3D leds & LED_HEARTBEAT;
=2D			break;
=2D	    case 1:	block_ptr =3D &lcd_info.disk_io;
=2D			value =3D leds & LED_DISK_IO;
=2D			break;				=09
=2D	    case 2:	block_ptr =3D &lcd_info.lan_rcv;
=2D			value =3D leds & LED_LAN_RCV;
=2D			break;				=09
=2D	    case 3:	block_ptr =3D &lcd_info.lan_tx;
=2D			value =3D leds & LED_LAN_TX;
=2D			break;
=2D	    default:	/* should never happen: */
=2D			return;
=2D	}
+	static int lastleds, i;
+	static unsigned char mask[4] =3D { LED_HEARTBEAT, LED_DISK_IO,
+		LED_LAN_RCV, LED_LAN_TX };
+=09
+	static struct lcd_block * blockp[4] =3D {
+		&lcd_info.heartbeat,
+		&lcd_info.disk_io,
+		&lcd_info.lan_rcv,
+		&lcd_info.lan_tx
+	};
=20
=2D	if (last_was_cmd) {
=2D	    /* write the value to the LCD data port */
=2D    	    gsc_writeb( value ? block_ptr->on : block_ptr->off, LCD_DATA_RE=
G );
=2D	} else {
=2D	    /* write the command-byte to the LCD command register */
=2D    	    gsc_writeb( block_ptr->command, LCD_CMD_REG );
=2D	}   =20
=2D=09
=2D	/* now update the vars for the next interrupt iteration */=20
=2D	if (++last_was_cmd =3D=3D 2) { /* switch between cmd & data */
=2D	    last_was_cmd =3D 0;
=2D	    if (++last_index =3D=3D 4)=20
=2D		last_index =3D 0;	 /* switch back to heartbeat index */
+	/* Convert min_cmd_delay to milliseconds */
+	unsigned int msec_cmd_delay =3D 1 + (lcd_info.min_cmd_delay / 1000);
+=09
+	for (i=3D0; i<4; ++i)=20
+	{
+		if ((leds & mask[i]) !=3D (lastleds & mask[i]))=20
+		{
+			gsc_writeb( blockp[i]->command, LCD_CMD_REG );
+			msleep(msec_cmd_delay);
+		=09
+			gsc_writeb( leds & mask[i] ? blockp[i]->on :=20
+					blockp[i]->off, LCD_DATA_REG );
+			msleep(msec_cmd_delay);
+		}
 	}
+	lastleds =3D leds;
 }
=20
=20
@@ -355,7 +358,7 @@ static __inline__ int led_get_net_activi
=20
 	rx_total =3D tx_total =3D 0;
 =09
=2D	/* we are running as tasklet, so locking dev_base=20
+	/* we are running as a workqueue task, so locking dev_base=20
 	 * for reading should be OK */
 	read_lock(&dev_base_lock);
 	for (dev =3D dev_base; dev; dev =3D dev->next) {
@@ -417,10 +420,9 @@ static __inline__ int led_get_diskio_act
=20
=20
 /*
=2D   ** led_tasklet_func()
+   ** led_work_func()
    **=20
=2D   ** is scheduled at every timer interrupt from time.c and
=2D   ** updates the chassis LCD/LED=20
+   ** is scheduled every 5 milliseconds and updates the chassis LCD/LED=20
=20
     TODO:
     - display load average (older machines like 715/64 have 4 "free" LED's=
 for that)
@@ -431,66 +433,104 @@ static __inline__ int led_get_diskio_act
 #define HEARTBEAT_2ND_RANGE_START (HZ*22/100)
 #define HEARTBEAT_2ND_RANGE_END   (HEARTBEAT_2ND_RANGE_START + HEARTBEAT_L=
EN)
=20
=2D#define NORMALIZED_COUNT(count) (count/(HZ/100))
+#define LED_MINIMUM_ON_TIME (HZ*10/100)
=20
=2Dstatic void led_tasklet_func(unsigned long unused)
+#define LED_UPDATE_INTERVAL (1 + (HZ*4/1000))
+
+static void led_work_func (void *unused)
 {
 	static unsigned char lastleds;
=2D	unsigned char currentleds; /* stores current value of the LEDs */
=2D	static unsigned long count; /* static incremented value, not wrapped */
 	static unsigned long count_HZ; /* counter in range 0..HZ */
=20
+	static unsigned long diskio_on_jiffies;
+	static unsigned long lantx_on_jiffies;
+	static unsigned long lanrcv_on_jiffies;
+
+	unsigned char currentleds =3D 0; /* stores current value of the LEDs */
+=09
 	/* exit if not initialized */
 	if (!led_func_ptr)
 	    return;
=20
=2D	/* increment the local counters */
=2D	++count;
=2D	if (++count_HZ =3D=3D HZ)
+	/* increment the local counter */
+	count_HZ +=3D LED_UPDATE_INTERVAL;
+	if (count_HZ >=3D HZ)
 	    count_HZ =3D 0;
=20
=2D	currentleds =3D lastleds;
=2D
 	if (led_heartbeat)
 	{
 		/* flash heartbeat-LED like a real heart (2 x short then a long delay) */
 		if (count_HZ<HEARTBEAT_LEN ||=20
 		    (count_HZ>=3DHEARTBEAT_2ND_RANGE_START && count_HZ<HEARTBEAT_2ND_RAN=
GE_END))=20
 		    currentleds |=3D LED_HEARTBEAT;
=2D		else
=2D		    currentleds &=3D ~LED_HEARTBEAT;
 	}
=20
=2D	/* look for network activity and flash LEDs respectively */
=2D	if (led_lanrxtx && ((NORMALIZED_COUNT(count)+(8/2)) & 7) =3D=3D 0)
+	/* If the leds are on, but should be turned off, make sure they have been=
 on for
+	 * the minimum time, to prevent 'flutter'=20
+	 */
+
+	/* look for network activity and flash LEDs accordingly */
+	if (led_lanrxtx)
 	{
=2D		currentleds &=3D ~(LED_LAN_RCV | LED_LAN_TX);
=2D		currentleds |=3D led_get_net_activity();
+		unsigned char new_lan_leds =3D led_get_net_activity();
+=09
+		/* TX LED */
+		if (new_lan_leds & LED_LAN_TX)=20
+		{
+			currentleds |=3D LED_LAN_TX;
+			lantx_on_jiffies =3D jiffies;
+		}
+		else if (lastleds & LED_LAN_TX && time_before(jiffies, lantx_on_jiffies =
+ LED_MINIMUM_ON_TIME))
+		{
+			currentleds |=3D LED_LAN_TX;
+		}
+	=09
+		/* RCV LED */
+
+		if (new_lan_leds & LED_LAN_RCV)=20
+		{
+			currentleds |=3D LED_LAN_RCV;
+			lanrcv_on_jiffies =3D jiffies;
+		}
+		else if (lastleds & LED_LAN_RCV && time_before(jiffies, lanrcv_on_jiffie=
s + LED_MINIMUM_ON_TIME))=20
+		{
+			currentleds |=3D LED_LAN_RCV;
+		}
 	}
=20
=2D	/* avoid to calculate diskio-stats at same irq  as netio-stats */
=2D	if (led_diskio && (NORMALIZED_COUNT(count) & 7) =3D=3D 0)
+	/* Calculate disk IO */
+	if (led_diskio)
 	{
=2D		currentleds &=3D ~LED_DISK_IO;
=2D		currentleds |=3D led_get_diskio_activity();
+		unsigned char new_io_led =3D led_get_diskio_activity();
+	=09
+		if (new_io_led & LED_DISK_IO)=20
+		{
+			currentleds |=3D LED_DISK_IO;
+			diskio_on_jiffies =3D jiffies;
+		}
+		else if (lastleds & LED_DISK_IO && time_before(jiffies, diskio_on_jiffie=
s + LED_MINIMUM_ON_TIME))=20
+		{
+			currentleds |=3D LED_DISK_IO;
+		}
 	}
=20
 	/* blink all LEDs twice a second if we got an Oops (HPMC) */
=2D	if (oops_in_progress) {
+	if (oops_in_progress)=20
+	{
 		currentleds =3D (count_HZ<=3D(HZ/2)) ? 0 : 0xff;
 	}
 =09
 	/* update the LCD/LEDs */
=2D	if (currentleds !=3D lastleds) {
=2D	    led_func_ptr(currentleds);
=2D	    lastleds =3D currentleds;
+	if (currentleds !=3D lastleds)
+	{
+		led_func_ptr(currentleds);
+		lastleds =3D currentleds;
 	}
+=09
+	/* Requeue ourself to run in 5 jiffies */=09
+	queue_delayed_work(led_wq, &led_task, LED_UPDATE_INTERVAL);
 }
=20
=2D/* main led tasklet struct (scheduled from time.c) */
=2DDECLARE_TASKLET_DISABLED(led_tasklet, led_tasklet_func, 0);
=2D
=2D
 /*
    ** led_halt()
    **=20
@@ -519,9 +559,13 @@ static int led_halt(struct notifier_bloc
 	default:		return NOTIFY_DONE;
 	}
 =09
=2D	/* completely stop the LED/LCD tasklet */
=2D	tasklet_disable(&led_tasklet);
=2D
+	/* Cancel the work item and delete the queue */
+	if (led_wq) {
+		if (cancel_delayed_work(&led_task) =3D=3D 0)=20
+			flush_workqueue(led_wq);
+		destroy_workqueue(led_wq);
+	}
+=20
 	if (lcd_info.model =3D=3D DISPLAY_MODEL_LCD)
 		lcd_print(txt);
 	else
@@ -586,9 +630,6 @@ int __init register_led_driver(int model
 	initialized++;
 	register_reboot_notifier(&led_notifier);
=20
=2D	/* start the led tasklet for the first time */
=2D	tasklet_enable(&led_tasklet);
=2D=09
 	return 0;
 }
=20
@@ -623,7 +664,7 @@ void __init register_led_regions(void)
    ** lcd_print()
    **=20
    ** Displays the given string on the LCD-Display of newer machines.
=2D   ** lcd_print() disables the timer-based led tasklet during its=20
+   ** lcd_print() disables the timer-based led work task during its=20
    ** execution and enables it afterwards again.
    **
  */
@@ -634,12 +675,14 @@ int lcd_print( char *str )
 	if (!led_func_ptr || lcd_info.model !=3D DISPLAY_MODEL_LCD)
 	    return 0;
 =09
=2D	/* temporarily disable the led tasklet */
=2D	tasklet_disable(&led_tasklet);
=2D
+	/* temporarily disable the led work task */
+	if (led_wq) {
+		if (cancel_delayed_work(&led_task) =3D=3D 0)=20
+			flush_workqueue(led_wq);
+	}
 	/* copy display string to buffer for procfs */
 	strlcpy(lcd_text, str, sizeof(lcd_text));
=2D=09
+
 	/* Set LCD Cursor to 1st character */
 	gsc_writeb(lcd_info.reset_cmd1, LCD_CMD_REG);
 	udelay(lcd_info.min_cmd_delay);
@@ -653,8 +696,10 @@ int lcd_print( char *str )
 	    udelay(lcd_info.min_cmd_delay);
 	}
 =09
=2D	/* re-enable the led tasklet */
=2D	tasklet_enable(&led_tasklet);
+	/* re-queue the work */
+	if (led_wq) {
+		queue_work(led_wq, &led_task);
+	}
=20
 	return lcd_info.lcd_width;
 }
diff -urpN oldtree/include/asm-parisc/led.h newtree/include/asm-parisc/led.h
=2D-- oldtree/include/asm-parisc/led.h	2004-12-30 08:07:48.000000000 +0000
+++ newtree/include/asm-parisc/led.h	2005-03-24 20:31:59.000000000 +0000
@@ -23,9 +23,6 @@
=20
 #define LED_CMD_REG_NONE 0		/* NULL =3D=3D no addr for the cmd register */
=20
=2D/* led tasklet struct */
=2Dextern struct tasklet_struct led_tasklet;
=2D
 /* register_led_driver() */
 int __init register_led_driver(int model, unsigned long cmd_reg, unsigned =
long data_reg);
=20

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On Thu, Mar 24, 2005 at 12:35:09PM -0500, John David Anglin wrote:
> > On Thu, Mar 24, 2005 at 11:19:28AM -0500, John David Anglin wrote:
> > ...
> > > From a PA standpoint, GCC 4 is ready for serious testing.  All testsuite
> > > bugs have been squashed in C and C++.
> > 
> > Is there a .deb or tarball available I can drop on a bunch of machines?
> 
> There is a recent build in /home/dave/opt/gnu/gcc/gcc-4.0.0 on gsyprf11.

Randolph Chung pointed to another gcc-4.0 build on gsyprf7.
That's fine for me...but several other people would probably want to
try this out on other machines.  And I like to make use of distcc.
gcc-4.0 must be in the same place on several machines for distcc to work.

> Unfortunately, it was built using --with-as= and --with-ld=, so it isn't
> very portable.  I could do a build with the system's as and ld that
> would be more portable.  I'm not setup to generate a .deb that would
> be system installable.

A tarball will do for now. Let someone good at debian packaging
worry about that bit.
My preference is the tarball use directory names/places like
existing gcc-3.x versions do:

grundler@gsyprf11:~$ ls /usr/bin/*3.4
/usr/bin/cpp-3.4*     /usr/bin/hppa-linux-cpp-3.4@
/usr/bin/g++-3.4*     /usr/bin/hppa-linux-g++-3.4@
/usr/bin/gcc-3.4*     /usr/bin/hppa-linux-gcc-3.4@
/usr/bin/gccbug-3.4*  /usr/bin/hppa64-linux-cpp-3.4*
/usr/bin/gcov-3.4*    /usr/bin/hppa64-linux-gcc-3.4*

grundler@gsyprf11:~$ ls /usr/lib/gcc*/hppa*-linux/
/usr/lib/gcc-lib/hppa-linux/:
3.0.4/  3.3.5/

/usr/lib/gcc-lib/hppa64-linux/:
3.0.4/  3.3.3/  3.3.5/

/usr/lib/gcc/hppa-linux/:
3.4.4/

/usr/lib/gcc/hppa64-linux/:
3.4.4/

My assumption is a gcc-4.0 tarball won't clobber any existing files.
So if that's not possible with the above locations, /opt/gnu
would be fine too.


> You are welcome to try the version in /home/dave/opt/gnu/gcc/gcc-4.0.0.

Ok - I will over the next couple of days.

> It's easily turned into a tarball.

BTW, you can host the tarball on http://gsyprf11.e.h.c/~dave/.
Just "mkdir ~/public_html" and start dropping stuff in there.
Alternate URL is http://iou.parisc-linux.org/~dave/

Please advertise where/when a suitable one is available.

> > I'd be happy to test for kernel builds.
> 
> That would provide useful.  In the past, there usually have been new
> features or deprecated features that have caused problems.

ok

> 4.0 has a
> new option, -mfixed_range=, that was introduced so that a small range
> of fp registers could be used for the xmpyu multiplication insn.  It
> might be useful to experiment with this option to see if it useful.

I don't know enough about ABI to understand the issues here.
AFAIK, we currently are using FP registers because that's
the way multiplication is implemented in the integer math libs
we inherited.

> This was borrowed from ia64.

*nod*. I expect hppa can benefit for the same reasons: hppa has
quite a few FP regs and some things FP can just do alot faster.
I just don't know what "some things" consists of.

thanks,
grant

> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Mar 24, 2005 at 02:37:46PM -0500, James A. Morrison wrote:
> > Is there a .deb or tarball available I can drop on a bunch of machines?
> 
>  Try the gcc-snapshot package.

Ah..."unstable" package:
	g/gcc-snapshot/gcc-snapshot_20050319-1.diff.gz
	g/gcc-snapshot/gcc-snapshot_20050319-1.dsc
	g/gcc-snapshot/gcc-snapshot_20050319-1_i386.deb
	g/gcc-snapshot/gcc-snapshot_20050319-1_ia64.deb
	g/gcc-snapshot/gcc-snapshot_20050319-1_mipsel.deb
	g/gcc-snapshot/gcc-snapshot_20050319-1_powerpc.deb
	g/gcc-snapshot/gcc-snapshot_20050319-1_s390.deb
	g/gcc-snapshot/gcc-snapshot_20050319.orig.tar.gz

Hrm... looks like hppa didn't build in the last one.
Most recent one available is 
	g/gcc-snapshot/gcc-snapshot_20050212-1_hppa.deb


Thinking about it more, I'd rather have Dave reccomend a tarball
he knows the test results for and is comfortable with them.

thanks though,
grant

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On Thu, Mar 24, 2005 at 04:33:46PM -0500, John David Anglin wrote:
> > > 4.0 has a
> > > new option, -mfixed_range=, that was introduced so that a small range
> > > of fp registers could be used for the xmpyu multiplication insn.  It
> > > might be useful to experiment with this option to see if it useful.
> > 
> > I don't know enough about ABI to understand the issues here.
> > AFAIK, we currently are using FP registers because that's
> > the way multiplication is implemented in the integer math libs
> > we inherited.
> 
> No.  Currently in kernel builds, the use of FP registers is completely
> disabled and integer multiplication is done using the millicode library.

Erm...objdump disagrees:
grundler <541>hppa64-linux-objdump -rD vmlinux | fgrep xmpy | wc
   1654   11578   82683

First occurance is here:
000000001010bca0 <__muldi3>:
    1010bca0:   37 de 00 80     ldo 40(sp),sp
    1010bca4:   db 56 07 e0     extrd,s r26,31,32,r22
    1010bca8:   73 d6 3f 91     std r22,-38(sp)
    1010bcac:   53 d6 3f 93     fldd -38(sp),fr22
    1010bcb0:   73 d9 3f 91     std r25,-38(sp)
    1010bcb4:   53 d7 3f 93     fldd -38(sp),fr23
    1010bcb8:   3a d7 57 96     xmpyu fr22R,fr23R,fr22
    1010bcbc:   d3 53 1b f0     extrw,u r26,31,16,r19
    1010bcc0:   73 d6 3f 93     fstd fr22,-38(sp)
    1010bcc4:   53 d6 3f 91     ldd -38(sp),r22
...

objdump output is on still on gsyprf11:/tmp/2.6.12-rc1-objdump
In case you want to browse it more.

> However with a few FP regs, integer multiplication (32 bit) can be
> done in hardware except of course on machines that don't have FP
> hardware.  The downside is that the kernel has to save whatever
> FP registers it uses.

Yeah, I thought that was happening already.
I'm hoping "save_fp         %r25" in arch/parisc/kernel/entry.S
takes care of that.

> The -mfixed_range= option "fixes" a range if registers.  GCC won't
> use registers that are fixed.

Yeah, it might make sense to "document" current usage
and limit which FP regs the kernel can use. Ie we
could reduce FP state that needs to be save when
entering the kernel. Context switch would need to save
the rest.

thanks,
grant
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i've been looking at the extreme slowness of ext3 during some workloads.
came across this bit of code... not that it will make any difference,
but i wonder if we can make gcc a bit smarter?

given this bit of C code:

static inline int test_bit(int nr, const void * addr)
{
	const unsigned char *ADDR = (const unsigned char *) addr;
	return (ADDR[nr >> 3] >> (nr & 7)) & 1;
}

int proc1(int nr, int foo)
{
	int ret;
	char *buf1, *buf2;

	if (test_bit(nr, buf1))
		return 0;

	if (foo)
		ret = 1;
	else
		ret = !test_bit(nr, buf2);
	return ret;
}

int proc2(int nr, int foo)
{
	char *buf1, *buf2;

	if (test_bit(nr, buf1))
		return 0;

	if (foo)
		return 1;
	else
		return !test_bit(nr, buf2);
}

i would have expected gcc to produce the same code for proc1() and
proc2() (and in fact it does for 32-bit), but for 64-bit, proc2() is 2
insn shorter than proc1().  it seems like there are also some
opportunities for further optimizations if gcc can recognize that the
return value can only be 0 or 1, so the sign extension (?) extrd insn at
the end is not needed, and we can deposit the result directly into ret0
instead of r20. that should save us 2 insns.

.globl proc2
	.type	proc2, @function
proc2:
	.PROC
	.CALLINFO FRAME=0,NO_CALLS
	.ENTRY
	extrd,s %r26,63,32,%r26
	extrw,u %r26,31,3,%r19
	extrd,s %r25,63,32,%r25
	mtsarcm %r19
	extrd,s %r26,60,61,%r26
	ldb %r26(%r20),%r19
	extrw,s %r19,%sar,32,%r19
	bb,*< %r19,63,.L10
	ldi 0,%r28
	ldi 1,%r28
	cmpb,*<> %r0,%r25,.L10
	ldi 0,%r20
	ldb %r26(%r21),%r19
	extrw,s %r19,%sar,32,%r19
	extrd,s,*< %r19,63,1,%r0
	ldi 1,%r20
	extrd,s %r20,63,32,%r28
.L10:
	bve,n (%r2)
	.EXIT
	.PROCEND

is this worth looking into? :)
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Randolph Chung <randolph@tausq.org> writes:

> i've been looking at the extreme slowness of ext3 during some workloads.
> came across this bit of code... not that it will make any difference,
> but i wonder if we can make gcc a bit smarter?
> 
> given this bit of C code:
> 
> static inline int test_bit(int nr, const void * addr)
> {
> 	const unsigned char *ADDR = (const unsigned char *) addr;
> 	return (ADDR[nr >> 3] >> (nr & 7)) & 1;
> }
> 
> int proc1(int nr, int foo)
> {
> 	int ret;
> 	char *buf1, *buf2;
> 
> 	if (test_bit(nr, buf1))
> 		return 0;
> 
> 	if (foo)
> 		ret = 1;
> 	else
> 		ret = !test_bit(nr, buf2);
> 	return ret;
> }
> 
> int proc2(int nr, int foo)
> {
> 	char *buf1, *buf2;
> 
> 	if (test_bit(nr, buf1))
> 		return 0;
> 
> 	if (foo)
> 		return 1;
> 	else
> 		return !test_bit(nr, buf2);
> }
> 

 GCC 4 already produces the same code for these functions*.  Attached is the
final_cleanup dumb of an O2 build of this file.

 * I only checked that the assembly was the exact same on ia64, but the
tree dumps only differ in the names of the ret variable.

-- 
Thanks,
Jim

http://www.student.cs.uwaterloo.ca/~ja2morri/
http://phython.blogspot.com
http://open.nit.ca/wiki/?page=jim

;; Function proc1 (proc1)

proc1 (nr, foo)
{
  int D.1253;
  const unsigned char * D.1249;
  char * buf2;
  char * buf1;
  int ret;

<bb 0>:
  D.1249 = (const unsigned char *) (long unsigned int) (nr >> 3);
  D.1253 = nr & 7;
  if (((int) *((const unsigned char *) buf1 + D.1249) >> D.1253 & 1) != 0) goto <L10>; else goto <L2>;

<L10>:;
  ret = 0;
  goto <bb 5> (<L7>);

<L2>:;
  if (foo != 0) goto <L11>; else goto <L4>;

<L11>:;
  ret = 1;
  goto <bb 5> (<L7>);

<L4>:;
  ret = ((int) *(D.1249 + (const unsigned char *) buf2) >> D.1253 & 1) == 0;

<L7>:;
  return ret;

}



;; Function proc2 (proc2)

proc2 (nr, foo)
{
  int D.1291;
  const unsigned char * D.1287;
  char * buf2;
  char * buf1;
  int D.1239;

<bb 0>:
  D.1287 = (const unsigned char *) (long unsigned int) (nr >> 3);
  D.1291 = nr & 7;
  if (((int) *((const unsigned char *) buf1 + D.1287) >> D.1291 & 1) != 0) goto <L9>; else goto <L2>;

<L9>:;
  D.1239 = 0;
  goto <bb 5> (<L6>);

<L2>:;
  if (foo != 0) goto <L10>; else goto <L4>;

<L10>:;
  D.1239 = 1;
  goto <bb 5> (<L6>);

<L4>:;
  D.1239 = ((int) *(D.1287 + (const unsigned char *) buf2) >> D.1291 & 1) == 0;

<L6>:;
  return D.1239;

}


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On Thu, Mar 24, 2005 at 09:00:05PM +0000, David Pye wrote:
...
> +	for (i=0; i<4; ++i) 
> +	{
> +		if ((leds & mask[i]) != (lastleds & mask[i])) 
> +		{
> +			gsc_writeb( blockp[i]->command, LCD_CMD_REG );
> +			msleep(msec_cmd_delay);
> +			
> +			gsc_writeb( leds & mask[i] ? blockp[i]->on : 
> +					blockp[i]->off, LCD_DATA_REG );
> +			msleep(msec_cmd_delay);
> +		}
>  	}
> +	lastleds = leds;

I still *really* like this bit. Good work!

> -   ** updates the chassis LCD/LED 
> +   ** is scheduled every 5 milliseconds and updates the chassis LCD/LED 
...
> -#define NORMALIZED_COUNT(count) (count/(HZ/100))
> +#define LED_MINIMUM_ON_TIME (HZ*10/100)

Why not just update every 10ms and ditch all the "minimum on time" stuff?
Can someone tell if an LED/LCD came on 5ms later than it should have been?

> +	static unsigned long diskio_on_jiffies;
> +	static unsigned long lantx_on_jiffies;
> +	static unsigned long lanrcv_on_jiffies;

If not, then this bit and...

> +	/* If the leds are on, but should be turned off, make sure they have been on for
> +	 * the minimum time, to prevent 'flutter' 
> +	 */

...and...

> +		else if (lastleds & LED_LAN_TX && time_before(jiffies, lantx_on_jiffies + LED_MINIMUM_ON_TIME))
> +		{
> +			currentleds |= LED_LAN_TX;
> +		}

can go away. Ditto for DiskIO.

We already know heartbeat stays on/off longer than that (about).

>  	/* blink all LEDs twice a second if we got an Oops (HPMC) */
> -	if (oops_in_progress) {
> +	if (oops_in_progress) 
> +	{
>  		currentleds = (count_HZ<=(HZ/2)) ? 0 : 0xff;
>  	}

Will this work for LCD?
Will the itimer continue to run and workq continue to get serviced?
Even if it does, I'm nervous about it.
Maybe stop all activity at that point?

The panic chassis log will get printed and that should be a good indicator.
Anyway, this is a seperate issue from the rest of the patch.

thanks,
grant
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> Not good.  This is from libgcc.  I see that the muldi3 expander is
> disabled when we disable FP regs.  I'm not sure why but it doesn't
> seem right.  Using the expander, would cause the use of the millicode
> routine when FP regs are disabled.

We *do not* disable fpregs in the kernel. We would like to though.

The problem is precisely libgcc - even if we compile the kernel with
--disable-fpregs, millicode calls generated by gcc will still use
fpregs. One proposal that has been talked about before is if we can
compile a version of the millicode lib that uses limited fpregs range
and compile the kernel using this new option that Dave is talking about,
then we will be able to get by using a (much) smaller subset of fp regs
and we won't have to save/restore them in the kernel.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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> We *do not* disable fpregs in the kernel. We would like to though.

I should add that in somewhat recent versions of the kernel, we actually
actively use fpregs in some of the kernel code. The "new" pa_memcpy code
uses fpregs to copy 8-bytes at a time on both 32-bit and 64-bit
machines.

randolph
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> > Not good.  This is from libgcc.  I see that the muldi3 expander is
> > disabled when we disable FP regs.  I'm not sure why but it doesn't
> > seem right.  Using the expander, would cause the use of the millicode
> > routine when FP regs are disabled.
> 
> We *do not* disable fpregs in the kernel. We would like to though.
> 
> The problem is precisely libgcc - even if we compile the kernel with
> --disable-fpregs, millicode calls generated by gcc will still use
> fpregs. One proposal that has been talked about before is if we can
> compile a version of the millicode lib that uses limited fpregs range
> and compile the kernel using this new option that Dave is talking about,
> then we will be able to get by using a (much) smaller subset of fp regs
> and we won't have to save/restore them in the kernel.

The millicode routines don't use fpregs.  Various libgcc functions
will use them.  However, I think it's a backend bug that causes
__muldi3 to get pulled in when the kernel is linked.

The -mfixed-range option should allow you to reduce the set of used
fpregs but we need to be sure that the libgcc routines don't get used.
Otherwise, we would have to build libgcc with a reduce set of fpregs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > No.  Currently in kernel builds, the use of FP registers is completely
> > disabled and integer multiplication is done using the millicode library.
> 
> Erm...objdump disagrees:
> grundler <541>hppa64-linux-objdump -rD vmlinux | fgrep xmpy | wc
>    1654   11578   82683
> 
> First occurance is here:
> 000000001010bca0 <__muldi3>:

Not good.  This is from libgcc.  I see that the muldi3 expander is
disabled when we disable FP regs.  I'm not sure why but it doesn't
seem right.  Using the expander, would cause the use of the millicode
routine when FP regs are disabled.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: David Pye <dmp@davidmpye.dyndns.org>
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Subject: Re: [parisc-linux] J5000 LED LCD patch (take 2)
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On Friday 25 March 2005 06:25, you wrote:
> On Thu, Mar 24, 2005 at 09:00:05PM +0000, David Pye wrote:
> ...
>
> > + for (i=3D0; i<4; ++i)
> > + {
> > +  if ((leds & mask[i]) !=3D (lastleds & mask[i]))
> > +  {
> > +   gsc_writeb( blockp[i]->command, LCD_CMD_REG );
> > +   msleep(msec_cmd_delay);
> > +
> > +   gsc_writeb( leds & mask[i] ? blockp[i]->on :
> > +     blockp[i]->off, LCD_DATA_REG );
> > +   msleep(msec_cmd_delay);
> > +  }
> >   }
> > + lastleds =3D leds;
>
> I still *really* like this bit. Good work!

Thankyou :)

> > -   ** updates the chassis LCD/LED
> > +   ** is scheduled every 5 milliseconds and updates the chassis LCD/LED
>
> ...
>
> > -#define NORMALIZED_COUNT(count) (count/(HZ/100))
> > +#define LED_MINIMUM_ON_TIME (HZ*10/100)
>
> Why not just update every 10ms and ditch all the "minimum on time" stuff?
> Can someone tell if an LED/LCD came on 5ms later than it should have been?

There is a reason for this, though there may be a better way of doing it. =
=20

If you remove it, and set the update interval to 10mS, what tends to happen=
 is=20
that because each time you flip a symbol on the lcd you have to wait 2=20
jiffies (once before cmd reg, once before writing data reg), and sometimes=
=20
more, because the kernel may put you to sleep a bit longer than the time yo=
u=20
asked for,  is that the heartbeat starts skipping beats when the io/lan led=
s=20
are changing on/off all the time.

If you really don't like the minimum_on_time, another solution is to leave =
the=20
work queued every five secs, and make sure you service the heartbeat on one=
=20
cycle, and the led/diskio on the other.  If you think that's cleaner, I can=
=20
change it to do that.

> >   /* blink all LEDs twice a second if we got an Oops (HPMC) */
> > - if (oops_in_progress) {
> > + if (oops_in_progress)
> > + {
> >    currentleds =3D (count_HZ<=3D(HZ/2)) ? 0 : 0xff;
> >   }
>
> Will this work for LCD?
> Will the itimer continue to run and workq continue to get serviced?
> Even if it does, I'm nervous about it.
> Maybe stop all activity at that point?
> The panic chassis log will get printed and that should be a good indicato=
r.
> Anyway, this is a seperate issue from the rest of the patch.

I think it'd be better to just rewrite that so that the work only requeues=
=20
itself if an oops ISNT in progress, but as you say, it wasn't something I=20
changed!

Cheers,

David

>
> thanks,
> grant

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Subject: Re: [parisc-linux] J5000 LED LCD patch (take 2)
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On Friday 25 March 2005 17:05, David Pye wrote:
<snip>
> >
> > > -#define NORMALIZED_COUNT(count) (count/(HZ/100))
> > > +#define LED_MINIMUM_ON_TIME (HZ*10/100)
> >
> > Why not just update every 10ms and ditch all the "minimum on time" stuf=
f?
> > Can someone tell if an LED/LCD came on 5ms later than it should have
> > been?

Ah, I remember now.

That's 100mS, not 10mS for a start ;)  You can't make the whole update=20
interval 100mS, of course, or you'll miss the heartbeats completely.

> There is a reason for this, though there may be a better way of doing it.
>
> If you remove it, and set the update interval to 10mS, what tends to happ=
en
> is that because each time you flip a symbol on the lcd you have to wait 2
> jiffies (once before cmd reg, once before writing data reg), and sometimes
> more, because the kernel may put you to sleep a bit longer than the time
> you asked for,  is that the heartbeat starts skipping beats when the io/l=
an
> leds are changing on/off all the time.
>
> If you really don't like the minimum_on_time, another solution is to leave
> the work queued every five secs, and make sure you service the heartbeat =
on
> one cycle, and the led/diskio on the other.  If you think that's cleaner,=
 I
> can change it to do that.

Having spent the evening trying that, I've found that the 100mS minimum=20
'flutter stop' interval patch gives the most consistent heartbeat of the=20
ideas that I've tried. The solution I suggested above causes the heartbeat =
to=20
become uneven when LAN/DISK IO is present still.

If the 100mS minimum LED illumination bothers people who have 'real' LEDs a=
s=20
opposed to LCD indicators, we can make it LCD only, of course.


Cheers,

David

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On Fri, Mar 25, 2005 at 09:50:26PM +0000, David Pye wrote:
> On Friday 25 March 2005 17:05, David Pye wrote:
> > > Why not just update every 10ms and ditch all the "minimum on time" stuff?
> > > Can someone tell if an LED/LCD came on 5ms later than it should have
> > > been?
> 
> Ah, I remember now.
> 
> That's 100mS, not 10mS for a start ;)  You can't make the whole update 
> interval 100mS, of course, or you'll miss the heartbeats completely.

Sorry, I wasn't clear. I meant check if LED/LCD status needs to change
every 10ms. The msleep would still let us bang out 8 register writes,
one per HZ. Ie make the "lets see if activity is different now" check
less frequent so LED/LCD is either on or off long enough to be visible.

100ms seems a bit longer than I would like. But if that works, go for it.

> > There is a reason for this, though there may be a better way of doing it.
> >
> > If you remove it, and set the update interval to 10mS, what tends to happen
> > is that because each time you flip a symbol on the lcd you have to wait 2
> > jiffies (once before cmd reg, once before writing data reg), and sometimes
> > more, because the kernel may put you to sleep a bit longer than the time
> > you asked for,  is that the heartbeat starts skipping beats when the io/lan
> > leds are changing on/off all the time.

My point was
1) don't update LED/LCD state again until the previous update has completed.
   ie all the register writes have been sent.

2) we shouldn't touch Heartbeat register for LCD unless heartbeat needs to be updated.

I'm still really not clear why there is "flutter".  THe only reasonable case I can think
of is flutter is an artifact of the CPU busy doing "real" work and not servicing the
LED/LCD wq. i.e. the stress test to excercise networking/disk activity is causing the
CPU to work on lots of other tasks and it's taking more than a few jiffies to get back
to the LED/LCD wq.

> 
> Having spent the evening trying that, I've found that the 100mS minimum 
> 'flutter stop' interval patch gives the most consistent heartbeat of the 
> ideas that I've tried. The solution I suggested above causes the heartbeat to 
> become uneven when LAN/DISK IO is present still.

Yeah, 100ms is well within someone noticing that LED/LCD activity isn't
sync'd with LEDs on NIC or Disk. But I'm ok with that. If they got the real
LED, the display panel can be ignored.

> If the 100mS minimum LED illumination bothers people who have 'real' LEDs as 
> opposed to LCD indicators, we can make it LCD only, of course.

Sure. throw another patch out there! You can enumerate them...this is #3 or #4...

thanks,
grant
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Grant Grundler writes:
> On Thu, Mar 24, 2005 at 11:19:28AM -0500, John David Anglin wrote:
> ...
> > From a PA standpoint, GCC 4 is ready for serious testing.  All testsuite
> > bugs have been squashed in C and C++.
> 
> Is there a .deb or tarball available I can drop on a bunch of machines?

- gcc-snapshot can be found in unstable, although it was pointed out,
  it's not that recent (I can't upload this one every week without the
  risk beeing killed by buildd admins for slower architectures ;)

- You can get gcc-4.0 packages from experimental, just add
  deb http://http.us.debian.org/debian experimental main contrib
  to /etc/apt/sources.list.
  Provided that somebody is building and uploading these ...

Besides the recent gcc-snapshot build failure, I'm having problems
building the packages at all at the moment, there's no difference
using between sarge and unstable.

- if the build succeeds, every test case in the testsuite fails, due
  to expect(?) problems. lamont told me that's reproducible on another
  A500, seeing some messages on the serial console, but I can't see
  these messages. I'm currently running the A500 kernels from the
  parisc archives. palinux-a500-defconfig-2.6.{8.1-pa11,11-pa2,12-rc1-pa1}
  all show the same behaviour.

- The libjava build sometimes fails with an sh/bash error. Restarting
  the build usually fixes this.

- gnat doesn't build, even if you include some prebuilt files (which
  might be wrongly generated) from another build.

Besides these minor issues, the packages should be fine.

	Matthias
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James Bottomley in a private conversation suggested our
ext2_test_bit() and ext2_find_next_zero_bit() might not
be counting bits the same way in the bitmap.

ext2_test_bit() is quite straight forward looks right to me.
But my brain wasn't grokking ext2_find_next_zero_bit().
Cloning it from sparc64 was easy to try...
Since the first attempted worked, I also applli

The result was rsync was able to clone from one
ext3 (whole disk) to another ext3 using rsync
at 5-10MB/s (both disks on the same SCSI bus).
This is *alot* better than the previous experience
of < 1MB/s. Since my ext3 test filesystems hadn't aged (been used)
very much, bitmap search is not much overhead.

If someone else has a disposable, mature ext3 file system
they can test the following patch on, that would be great.

BTW, this patch assumes a 64-bit kernel and is certainly
not intended to be committed as is. This is just
an experiment so far.

Patch is against 2.6.11-pa2 (NOT 2.6.12 - sorry)

grant


Index: include/asm-parisc/bitops.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/bitops.h,v
retrieving revision 1.14
diff -u -p -r1.14 bitops.h
--- include/asm-parisc/bitops.h	18 Feb 2005 14:22:09 -0000	1.14
+++ include/asm-parisc/bitops.h	26 Mar 2005 09:58:58 -0000
@@ -466,49 +466,47 @@ static __inline__ int ext2_test_bit(int 
 	return (ADDR[nr >> 3] >> (nr & 7)) & 1;
 }
 
-/*
- * This implementation of ext2_find_{first,next}_zero_bit was stolen from
- * Linus' asm-alpha/bitops.h and modified for a big-endian machine.
- */
 
-#define ext2_find_first_zero_bit(addr, size) \
-        ext2_find_next_zero_bit((addr), (size), 0)
-
-extern __inline__ unsigned long ext2_find_next_zero_bit(void *addr,
-	unsigned long size, unsigned long offset)
+static __inline__ unsigned long ext2_find_next_zero_bit(unsigned long *addr, unsigned long size, unsigned long offset)
 {
-	unsigned int *p = ((unsigned int *) addr) + (offset >> 5);
-	unsigned int result = offset & ~31UL;
-	unsigned int tmp;
+	unsigned long *p = addr + (offset >> 6);
+	unsigned long result = offset & ~63UL;
+	unsigned long tmp;
 
 	if (offset >= size)
 		return size;
 	size -= result;
-	offset &= 31UL;
-	if (offset) {
-		tmp = cpu_to_le32p(p++);
-		tmp |= ~0UL >> (32-offset);
-		if (size < 32)
+	offset &= 63UL;
+	if(offset) {
+		tmp = __swab64p((u64 *)p++);
+		tmp |= (~0UL >> (64-offset));
+		if(size < 64)
 			goto found_first;
-		if (tmp != ~0U)
+		if(~tmp)
 			goto found_middle;
-		size -= 32;
-		result += 32;
+		size -= 64;
+		result += 64;
 	}
-	while (size >= 32) {
-		if ((tmp = cpu_to_le32p(p++)) != ~0U)
-			goto found_middle;
-		result += 32;
-		size -= 32;
+	while(size & ~63) {
+		if(~(tmp = *(p++)))
+			goto found_middle_swap;
+		result += 64;
+		size -= 64;
 	}
-	if (!size)
+	if(!size)
 		return result;
-	tmp = cpu_to_le32p(p);
+	tmp = __swab64p((u64 *) p);
 found_first:
-	tmp |= ~0U << size;
+	tmp |= (~0UL << size);
+	if (tmp == ~0UL)        /* Are any bits zero? */
+		return result + size; /* Nope. */
 found_middle:
 	return result + ffz(tmp);
+
+found_middle_swap:
+	return result + ffz(__swab64((u64)tmp));
 }
+
 
 /* Bitmap functions for the minix filesystem.  */
 #define minix_test_and_set_bit(nr,addr) ext2_set_bit(nr,addr)
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Subject: Re: [parisc-linux] J5000 LED LCD patch (take 2)
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On Saturday 26 March 2005 07:13, Grant Grundler wrote:

> Sorry, I wasn't clear. I meant check if LED/LCD status needs to change
> every 10ms. The msleep would still let us bang out 8 register writes,
> one per HZ. Ie make the "lets see if activity is different now" check
> less frequent so LED/LCD is either on or off long enough to be visible.
>
> 100ms seems a bit longer than I would like. But if that works, go for it.

I did try reducing it to 50, and found that it caused heartbeat to become=20
irregular under heavy load.

> > > There is a reason for this, though there may be a better way of doing
> > > it.
> > >
> > > If you remove it, and set the update interval to 10mS, what tends to
> > > happen is that because each time you flip a symbol on the lcd you have
> > > to wait 2 jiffies (once before cmd reg, once before writing data reg),
> > > and sometimes more, because the kernel may put you to sleep a bit
> > > longer than the time you asked for,  is that the heartbeat starts
> > > skipping beats when the io/lan leds are changing on/off all the time.
>
> My point was
> 1) don't update LED/LCD state again until the previous update has
> completed. ie all the register writes have been sent.

Yep, we don't do that.

> 2) we shouldn't touch Heartbeat register for LCD unless heartbeat needs to
> be updated.

It already does that too.

> I'm still really not clear why there is "flutter".  THe only reasonable
> case I can think of is flutter is an artifact of the CPU busy doing "real"
> work and not servicing the LED/LCD wq. i.e. the stress test to excercise
> networking/disk activity is causing the CPU to work on lots of other tasks
> and it's taking more than a few jiffies to get back to the LED/LCD wq.

Yeah, it's a little mysterious. What I think is happening is that when we a=
sk=20
to msleep between the writes, because we're not busy-waiting, we might be p=
ut=20
to sleep for far longer than we asked for.  Ditto again, for when we ask to=
=20
be requeued - we ask to run every 10mS but we might end up waiting for far=
=20
longer than that.  That's about the best explanation I've come up with so=20
far.  By ensuring that we do not update the io/net symbols more often than=
=20
necessary, we can save ourselves some of these sleeps, so giving the kernel=
=20
less opportunity to put us to sleep!

> > Having spent the evening trying that, I've found that the 100mS minimum
> > 'flutter stop' interval patch gives the most consistent heartbeat of the
> > ideas that I've tried. The solution I suggested above causes the
> > heartbeat to become uneven when LAN/DISK IO is present still.
>
> Yeah, 100ms is well within someone noticing that LED/LCD activity isn't
> sync'd with LEDs on NIC or Disk. But I'm ok with that. If they got the re=
al
> LED, the display panel can be ignored.

Very true.

> > If the 100mS minimum LED illumination bothers people who have 'real' LE=
Ds
> > as opposed to LCD indicators, we can make it LCD only, of course.
>
> Sure. throw another patch out there! You can enumerate them...this is #3 =
or
> #4...

Attached! The only real change now is that the minimum on-time is now LCD=20
only, so hopefully this gets us the best of both worlds. LED people won't=20
notice anything different, and the LCD should now be nicely responsive.

Cheers,

David

> thanks,
> grant

=2D-=20
=2D----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GCS d- s-: a-- C++ UL++++ P L+++ E--- W++ N+ o+ K- w---
O M V- PS+ PE+ Y+ PGP t 5- X+ R- tv+ b+ DI++ D+
G+ e++ h--- r++ y++
=2D-----END GEEK CODE BLOCK------

--Boundary-01=_ixXRC6Q9HbROECu
Content-Type: text/x-diff;
  charset="iso-8859-1";
  name="lcd_patch4"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="lcd_patch4"

diff -urpN linux-2.6.12-rc1-pa2/arch/parisc/kernel/time.c patched/arch/pari=
sc/kernel/time.c
=2D-- linux-2.6.12-rc1-pa2/arch/parisc/kernel/time.c	2004-10-21 19:58:24.00=
0000000 +0100
+++ patched/arch/parisc/kernel/time.c	2005-03-26 14:30:39.000000000 +0000
@@ -89,14 +89,6 @@ irqreturn_t timer_interrupt(int irq, voi
 		}
 	}
    =20
=2D#ifdef CONFIG_CHASSIS_LCD_LED
=2D	/* Only schedule the led tasklet on cpu 0, and only if it
=2D	 * is enabled.
=2D	 */
=2D	if (cpu =3D=3D 0 && !atomic_read(&led_tasklet.count))
=2D		tasklet_schedule(&led_tasklet);
=2D#endif
=2D
 	/* check soft power switch status */
 	if (cpu =3D=3D 0 && !atomic_read(&power_tasklet.count))
 		tasklet_schedule(&power_tasklet);
diff -urpN linux-2.6.12-rc1-pa2/drivers/parisc/led.c patched/drivers/parisc=
/led.c
=2D-- linux-2.6.12-rc1-pa2/drivers/parisc/led.c	2005-03-18 13:17:10.0000000=
00 +0000
+++ patched/drivers/parisc/led.c	2005-03-26 14:42:35.000000000 +0000
@@ -18,6 +18,9 @@
  * Changes:
  *      - Audit copy_from_user in led_proc_write.
  *                                Daniele Bellucci <bellucda@tiscali.it>
+ *	- Switch from using a tasklet to a work queue, so the led_LCD_driver
+ *	  	can sleep.
+ *	  			  David Pye <dmp@davidmpye.dyndns.org>
  */
=20
 #include <linux/config.h>
@@ -37,6 +40,7 @@
 #include <linux/proc_fs.h>
 #include <linux/ctype.h>
 #include <linux/blkdev.h>
+#include <linux/workqueue.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/hardware.h>
@@ -46,9 +50,9 @@
 #include <asm/uaccess.h>
=20
 /* The control of the LEDs and LCDs on PARISC-machines have to be done=20
=2D   completely in software. The necessary calculations are done in a task=
let
=2D   which is scheduled at every timer interrupt and since the calculation=
s=20
=2D   may consume relatively much CPU-time some of the calculations can be=
=20
+   completely in software. The necessary calculations are done in a work q=
ueue
+   task which is scheduled regularly, and since the calculations may consu=
me a=20
+   relatively large amount of CPU time, some of the calculations can be=20
    turned off with the following variables (controlled via procfs) */
=20
 static int led_type =3D -1;
@@ -58,13 +62,16 @@ static int led_lanrxtx =3D 1;
 static char lcd_text[32];
 static char lcd_text_default[32];
=20
+static struct workqueue_struct *led_wq;
+static void led_work_func(void *);
+static DECLARE_WORK(led_task, led_work_func, NULL);
+
 #if 0
 #define DPRINTK(x)	printk x
 #else
 #define DPRINTK(x)
 #endif
=20
=2D
 struct lcd_block {
 	unsigned char command;	/* stores the command byte      */
 	unsigned char on;	/* value for turning LED on     */
@@ -115,12 +122,24 @@ lcd_info __attribute__((aligned(8))) =3D
 #define LCD_DATA_REG	lcd_info.lcd_data_reg_addr	=20
 #define LED_DATA_REG	lcd_info.lcd_cmd_reg_addr	/* LASI & ASP only */
=20
+#define LED_HASLCD 1
+#define LED_NOLCD  0
+
+/* The workqueue must be created at init-time */
+static int start_task(void)=20
+{=09
+	/* Create the work queue and queue the LED task */
+	led_wq =3D create_singlethread_workqueue("led_wq");=09
+	queue_work(led_wq, &led_task);
+
+	return 0;
+}
+
+device_initcall(start_task);
=20
 /* ptr to LCD/LED-specific function */
 static void (*led_func_ptr) (unsigned char);
=20
=2D#define LED_HASLCD 1
=2D#define LED_NOLCD  0
 #ifdef CONFIG_PROC_FS
 static int led_proc_read(char *page, char **start, off_t off, int count,=20
 	int *eof, void *data)
@@ -285,53 +304,37 @@ static void led_LASI_driver(unsigned cha
 /*
    **=20
    ** led_LCD_driver()
=2D   **=20
=2D   ** The logic of the LCD driver is, that we write at every scheduled c=
all
=2D   ** only to one of LCD_CMD_REG _or_ LCD_DATA_REG - registers.
=2D   ** That way we don't need to let this tasklet busywait for min_cmd_de=
lay
=2D   ** milliseconds.
=2D   **
=2D   ** TODO: check the value of "min_cmd_delay" against the value of HZ.
    **  =20
  */
 static void led_LCD_driver(unsigned char leds)
 {
=2D	static int last_index;	/* 0:heartbeat, 1:disk, 2:lan_in, 3:lan_out */
=2D	static int last_was_cmd;/* 0: CMD was written last, 1: DATA was last */
=2D	struct lcd_block *block_ptr;
=2D	int value;
=2D
=2D	switch (last_index) {
=2D	    case 0:	block_ptr =3D &lcd_info.heartbeat;
=2D			value =3D leds & LED_HEARTBEAT;
=2D			break;
=2D	    case 1:	block_ptr =3D &lcd_info.disk_io;
=2D			value =3D leds & LED_DISK_IO;
=2D			break;				=09
=2D	    case 2:	block_ptr =3D &lcd_info.lan_rcv;
=2D			value =3D leds & LED_LAN_RCV;
=2D			break;				=09
=2D	    case 3:	block_ptr =3D &lcd_info.lan_tx;
=2D			value =3D leds & LED_LAN_TX;
=2D			break;
=2D	    default:	/* should never happen: */
=2D			return;
=2D	}
+	static int lastleds, i;
+	static unsigned char mask[4] =3D { LED_HEARTBEAT, LED_DISK_IO,
+		LED_LAN_RCV, LED_LAN_TX };
+=09
+	static struct lcd_block * blockp[4] =3D {
+		&lcd_info.heartbeat,
+		&lcd_info.disk_io,
+		&lcd_info.lan_rcv,
+		&lcd_info.lan_tx
+	};
=20
=2D	if (last_was_cmd) {
=2D	    /* write the value to the LCD data port */
=2D    	    gsc_writeb( value ? block_ptr->on : block_ptr->off, LCD_DATA_RE=
G );
=2D	} else {
=2D	    /* write the command-byte to the LCD command register */
=2D    	    gsc_writeb( block_ptr->command, LCD_CMD_REG );
=2D	}   =20
=2D=09
=2D	/* now update the vars for the next interrupt iteration */=20
=2D	if (++last_was_cmd =3D=3D 2) { /* switch between cmd & data */
=2D	    last_was_cmd =3D 0;
=2D	    if (++last_index =3D=3D 4)=20
=2D		last_index =3D 0;	 /* switch back to heartbeat index */
+	/* Convert min_cmd_delay to milliseconds */
+	unsigned int msec_cmd_delay =3D 1 + (lcd_info.min_cmd_delay / 1000);
+=09
+	for (i=3D0; i<4; ++i)=20
+	{
+		if ((leds & mask[i]) !=3D (lastleds & mask[i]))=20
+		{
+			gsc_writeb( blockp[i]->command, LCD_CMD_REG );
+			msleep(msec_cmd_delay);
+		=09
+			gsc_writeb( leds & mask[i] ? blockp[i]->on :=20
+					blockp[i]->off, LCD_DATA_REG );
+			msleep(msec_cmd_delay);
+		}
 	}
+	lastleds =3D leds;
 }
=20
=20
@@ -355,7 +358,7 @@ static __inline__ int led_get_net_activi
=20
 	rx_total =3D tx_total =3D 0;
 =09
=2D	/* we are running as tasklet, so locking dev_base=20
+	/* we are running as a workqueue task, so locking dev_base=20
 	 * for reading should be OK */
 	read_lock(&dev_base_lock);
 	for (dev =3D dev_base; dev; dev =3D dev->next) {
@@ -417,10 +420,9 @@ static __inline__ int led_get_diskio_act
=20
=20
 /*
=2D   ** led_tasklet_func()
+   ** led_work_func()
    **=20
=2D   ** is scheduled at every timer interrupt from time.c and
=2D   ** updates the chassis LCD/LED=20
+   ** is scheduled every 5 milliseconds and updates the chassis LCD/LED=20
=20
     TODO:
     - display load average (older machines like 715/64 have 4 "free" LED's=
 for that)
@@ -431,66 +433,106 @@ static __inline__ int led_get_diskio_act
 #define HEARTBEAT_2ND_RANGE_START (HZ*22/100)
 #define HEARTBEAT_2ND_RANGE_END   (HEARTBEAT_2ND_RANGE_START + HEARTBEAT_L=
EN)
=20
=2D#define NORMALIZED_COUNT(count) (count/(HZ/100))
+#define LCD_LED_MINIMUM_ON_TIME (HZ*10/100)
=20
=2Dstatic void led_tasklet_func(unsigned long unused)
+#define LED_UPDATE_INTERVAL (1 + (HZ*4/1000))
+
+static void led_work_func (void *unused)
 {
 	static unsigned char lastleds;
=2D	unsigned char currentleds; /* stores current value of the LEDs */
=2D	static unsigned long count; /* static incremented value, not wrapped */
 	static unsigned long count_HZ; /* counter in range 0..HZ */
=20
+	static unsigned long diskio_on_jiffies;
+	static unsigned long lantx_on_jiffies;
+	static unsigned long lanrcv_on_jiffies;
+
+	unsigned char currentleds =3D 0; /* stores current value of the LEDs */
+=09
 	/* exit if not initialized */
 	if (!led_func_ptr)
 	    return;
=20
=2D	/* increment the local counters */
=2D	++count;
=2D	if (++count_HZ =3D=3D HZ)
+	/* increment the local counter */
+	count_HZ +=3D LED_UPDATE_INTERVAL;
+	if (count_HZ >=3D HZ)
 	    count_HZ =3D 0;
=20
=2D	currentleds =3D lastleds;
=2D
 	if (led_heartbeat)
 	{
 		/* flash heartbeat-LED like a real heart (2 x short then a long delay) */
 		if (count_HZ<HEARTBEAT_LEN ||=20
 		    (count_HZ>=3DHEARTBEAT_2ND_RANGE_START && count_HZ<HEARTBEAT_2ND_RAN=
GE_END))=20
 		    currentleds |=3D LED_HEARTBEAT;
=2D		else
=2D		    currentleds &=3D ~LED_HEARTBEAT;
 	}
=20
=2D	/* look for network activity and flash LEDs respectively */
=2D	if (led_lanrxtx && ((NORMALIZED_COUNT(count)+(8/2)) & 7) =3D=3D 0)
+	/* look for network activity and flash LEDs accordingly */
+	if (led_lanrxtx)
 	{
=2D		currentleds &=3D ~(LED_LAN_RCV | LED_LAN_TX);
=2D		currentleds |=3D led_get_net_activity();
+		unsigned char new_lan_leds =3D led_get_net_activity();
+		/* For LCD based systems, enforce a 'minimum on time' to prevent flutter=
ing. */
+		if (led_type =3D=3D LED_HASLCD) {
+			/* TX LED */
+			if (new_lan_leds & LED_LAN_TX)=20
+			{
+				currentleds |=3D LED_LAN_TX;
+				lantx_on_jiffies =3D jiffies;
+			}
+			else if (lastleds & LED_LAN_TX && time_before(jiffies, lantx_on_jiffies=
 + LCD_LED_MINIMUM_ON_TIME))
+			{
+				currentleds |=3D LED_LAN_TX;
+			}
+		=09
+			/* RCV LED */
+
+			if (new_lan_leds & LED_LAN_RCV)=20
+			{
+				currentleds |=3D LED_LAN_RCV;
+				lanrcv_on_jiffies =3D jiffies;
+			}
+			else if (lastleds & LED_LAN_RCV && time_before(jiffies, lanrcv_on_jiffi=
es + LCD_LED_MINIMUM_ON_TIME))=20
+			{
+				currentleds |=3D LED_LAN_RCV;
+			}
+		}
+		else currentleds |=3D new_lan_leds;
 	}
=20
=2D	/* avoid to calculate diskio-stats at same irq  as netio-stats */
=2D	if (led_diskio && (NORMALIZED_COUNT(count) & 7) =3D=3D 0)
+	/* Calculate disk IO */
+	if (led_diskio)
 	{
=2D		currentleds &=3D ~LED_DISK_IO;
=2D		currentleds |=3D led_get_diskio_activity();
+		unsigned char new_io_led =3D led_get_diskio_activity();
+		/* For LCD based systems, enforce a 'minimum on time' to prevent flutter=
ing. */
+		if (led_type =3D=3D LED_HASLCD) {
+			if (new_io_led & LED_DISK_IO)=20
+			{
+				currentleds |=3D LED_DISK_IO;
+					diskio_on_jiffies =3D jiffies;
+			}
+			else if (lastleds & LED_DISK_IO && time_before(jiffies, diskio_on_jiffi=
es + LCD_LED_MINIMUM_ON_TIME))=20
+			{
+				currentleds |=3D LED_DISK_IO;
+			}
+		}
+		else currentleds |=3D new_io_led;
 	}
=20
 	/* blink all LEDs twice a second if we got an Oops (HPMC) */
=2D	if (oops_in_progress) {
+	if (oops_in_progress)=20
+	{
 		currentleds =3D (count_HZ<=3D(HZ/2)) ? 0 : 0xff;
 	}
 =09
=2D	/* update the LCD/LEDs */
=2D	if (currentleds !=3D lastleds) {
=2D	    led_func_ptr(currentleds);
=2D	    lastleds =3D currentleds;
+	/* Update the LCD/LEDs if they've changed */
+	if (currentleds !=3D lastleds)
+	{
+		led_func_ptr(currentleds);
+		lastleds =3D currentleds;
 	}
+=09
+	/* Requeue ourself to run in 5 jiffies */=09
+	queue_delayed_work(led_wq, &led_task, LED_UPDATE_INTERVAL);
 }
=20
=2D/* main led tasklet struct (scheduled from time.c) */
=2DDECLARE_TASKLET_DISABLED(led_tasklet, led_tasklet_func, 0);
=2D
=2D
 /*
    ** led_halt()
    **=20
@@ -519,9 +561,13 @@ static int led_halt(struct notifier_bloc
 	default:		return NOTIFY_DONE;
 	}
 =09
=2D	/* completely stop the LED/LCD tasklet */
=2D	tasklet_disable(&led_tasklet);
=2D
+	/* Cancel the work item and delete the queue */
+	if (led_wq) {
+		if (cancel_delayed_work(&led_task) =3D=3D 0)=20
+			flush_workqueue(led_wq);
+		destroy_workqueue(led_wq);
+	}
+=20
 	if (lcd_info.model =3D=3D DISPLAY_MODEL_LCD)
 		lcd_print(txt);
 	else
@@ -586,9 +632,6 @@ int __init register_led_driver(int model
 	initialized++;
 	register_reboot_notifier(&led_notifier);
=20
=2D	/* start the led tasklet for the first time */
=2D	tasklet_enable(&led_tasklet);
=2D=09
 	return 0;
 }
=20
@@ -623,7 +666,7 @@ void __init register_led_regions(void)
    ** lcd_print()
    **=20
    ** Displays the given string on the LCD-Display of newer machines.
=2D   ** lcd_print() disables the timer-based led tasklet during its=20
+   ** lcd_print() disables the timer-based led work task during its=20
    ** execution and enables it afterwards again.
    **
  */
@@ -634,12 +677,14 @@ int lcd_print( char *str )
 	if (!led_func_ptr || lcd_info.model !=3D DISPLAY_MODEL_LCD)
 	    return 0;
 =09
=2D	/* temporarily disable the led tasklet */
=2D	tasklet_disable(&led_tasklet);
=2D
+	/* temporarily disable the led work task */
+	if (led_wq) {
+		if (cancel_delayed_work(&led_task) =3D=3D 0)=20
+			flush_workqueue(led_wq);
+	}
 	/* copy display string to buffer for procfs */
 	strlcpy(lcd_text, str, sizeof(lcd_text));
=2D=09
+
 	/* Set LCD Cursor to 1st character */
 	gsc_writeb(lcd_info.reset_cmd1, LCD_CMD_REG);
 	udelay(lcd_info.min_cmd_delay);
@@ -653,8 +698,10 @@ int lcd_print( char *str )
 	    udelay(lcd_info.min_cmd_delay);
 	}
 =09
=2D	/* re-enable the led tasklet */
=2D	tasklet_enable(&led_tasklet);
+	/* re-queue the work */
+	if (led_wq) {
+		queue_work(led_wq, &led_task);
+	}
=20
 	return lcd_info.lcd_width;
 }
diff -urpN linux-2.6.12-rc1-pa2/include/asm-parisc/led.h patched/include/as=
m-parisc/led.h
=2D-- linux-2.6.12-rc1-pa2/include/asm-parisc/led.h	2004-12-30 08:07:48.000=
000000 +0000
+++ patched/include/asm-parisc/led.h	2005-03-26 14:30:39.000000000 +0000
@@ -23,9 +23,6 @@
=20
 #define LED_CMD_REG_NONE 0		/* NULL =3D=3D no addr for the cmd register */
=20
=2D/* led tasklet struct */
=2Dextern struct tasklet_struct led_tasklet;
=2D
 /* register_led_driver() */
 int __init register_led_driver(int model, unsigned long cmd_reg, unsigned =
long data_reg);
=20

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On Sat, 2005-03-26 at 15:14 +0000, David Pye wrote:
> > I'm still really not clear why there is "flutter".  THe only reasonable
> > case I can think of is flutter is an artifact of the CPU busy doing "real"
> > work and not servicing the LED/LCD wq. i.e. the stress test to excercise
> > networking/disk activity is causing the CPU to work on lots of other tasks
> > and it's taking more than a few jiffies to get back to the LED/LCD wq.
> 
> Yeah, it's a little mysterious. What I think is happening is that when we ask 
> to msleep between the writes, because we're not busy-waiting, we might be put 
> to sleep for far longer than we asked for.  Ditto again, for when we ask to 
> be requeued - we ask to run every 10mS but we might end up waiting for far 
> longer than that.  That's about the best explanation I've come up with so 
> far.  By ensuring that we do not update the io/net symbols more often than 
> necessary, we can save ourselves some of these sleeps, so giving the kernel 
> less opportunity to put us to sleep!

This is a natural consequence of converting from a tasklet to a
workqueue.  workqueues and msleep are controlled by the scheduler.  The
guarantee is not that the task will be awoken at the specified interval,
but that the task will be marked ready to run at the specified interval.
When it actually runs is within the gift of the scheduler and depends
entirely on how many other runnable tasks there are and what priorities
they have.

If you want absolute control of the timings then you have to use a
tasklet or timer (as per the original implementation)

James


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>   it's not that recent (I can't upload this one every week without the
>   risk beeing killed by buildd admins for slower architectures ;)
> 
> - You can get gcc-4.0 packages from experimental, just add
>   deb http://http.us.debian.org/debian experimental main contrib
>   to /etc/apt/sources.list.
>   Provided that somebody is building and uploading these ...
> 
> Besides the recent gcc-snapshot build failure, I'm having problems
> building the packages at all at the moment, there's no difference
> using between sarge and unstable.

I've had this problem from time to time, particularly on server
machines.  My c3k is solid and this doesn't happen.  For some reason,
the libjava build is most prone to the segfaults in sh/bash and
sometimes make.  Grant's recent builds on gsyprf11 seem to have
changed the nature of the faults.  Now, the kernel panics instead
of a segfault in sh.  Grant would know more as to what's causing
these crashes.

> - if the build succeeds, every test case in the testsuite fails, due
>   to expect(?) problems. lamont told me that's reproducible on another
>   A500, seeing some messages on the serial console, but I can't see
>   these messages. I'm currently running the A500 kernels from the
>   parisc archives. palinux-a500-defconfig-2.6.{8.1-pa11,11-pa2,12-rc1-pa1}
>   all show the same behaviour.

I think that there are issues with expect, tcl and dejagnu.

1) Dejagnu asks expect to trap SEGFAULTS.  This is undefined and results
   in the fault insn being executed repeatively.  It's a simple one line
   fix to remove this:

--- runtest.exp.orig    2004-08-25 16:10:38.000000000 -0400
+++ runtest.exp 2004-08-25 16:11:13.000000000 -0400
@@ -1503,8 +1503,7 @@
 if ![exp_debug] {
      foreach sig "{SIGTERM {terminated}} \
		    {SIGINT  {interrupted by user}} \
-             {SIGQUIT {interrupted by user}} \
-             {SIGSEGV {segmentation violation}}" {
+             {SIGQUIT {interrupted by user}}" {
	 set signal [lindex $sig 0]
	 set str [lindex $sig 1]
	 trap "send_error \"got a \[trap -name\] signal, $str \\n\"; log_and_exit;" $signal

   I've probably munged the diff doing a cut and paste.

2) There is some kind of timing issue with expect/tcl when a given
   test ends.  This causes expect to hang.  When this happens, you
   will see a defunct expect task.  It is a child of the expect task
   that is hung.

   Tcl 8.3 works better than 8.4.  I know they have changed some of
   the code in this area but I don't know why this happens.  I've also
   had this happen on x86 but pa seems much more prone to this problem.

   Tcl 8.3 also works better for tests that generate a lot of output.
   It is less likely to truncate the output resulting in a test failure.
   I think this has to do with the handling of pipes at exit.

3) A warning appears compiling expect in a couple of places regarding
   the second argument of waitpid.  It's always int.  However, expect
   thinks the type of this argument is WAIT_STATUS_TYPE.  This gets
   used when NO_UNION_WAIT isn't defined.  This problem can be worked
   around be adding "-ansi -D_SVID_SOURCE -D_POSIX_SOURCE" to CFLAGS.
   I had hoped that fixing this would resolve the expect hangs but it
   doesn't seem to help.  However, I do like a build without warnings.
   To get this with the above CFLAGS, a number of missing include
   directives need to be added.

   I use the following setup:

   dave@hiauly6:~/gnu/expect-5.43/objdir$ runtest --version
   WARNING: Couldn't find the global config file.
   Expect version is       5.43.0
   Tcl version is          8.3
   Framework version is    1.4.4

   I haven't seen any significant difference in behavior between
   5.42.1 and 5.43.0.  The former is the debian patched source.

4) There is a exit timing issue in tcl 8.4.  I tried a patch from the
   tcl list that claimed to fix this but it didn't seem to fix either
   the hangs or the truncation problem.

> - The libjava build sometimes fails with an sh/bash error. Restarting
>   the build usually fixes this.

:(  I've been hoping that some of these issues are caused by the put_user
problem.

> - gnat doesn't build, even if you include some prebuilt files (which
>   might be wrongly generated) from another build.

I've been regularly building gnat, so I think that you may have a problem
with your prebuilt files.  There was an issue like this in going from
3.3 to 3.4.  If you are starting from 3.3, try starting from 3.4.

There is an issue with tasking.  I have a patch to enable tasking
in Ada.  However, even the simplest possible Ada program that uses
tasking hangs.  I haven't had a chance to look at it much but it
seems like that we may have a problem with signals and thread
support.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Saturday 26 March 2005 15:33, you wrote:

> This is a natural consequence of converting from a tasklet to a
> workqueue. =A0workqueues and msleep are controlled by the scheduler. =A0T=
he
> guarantee is not that the task will be awoken at the specified interval,
> but that the task will be marked ready to run at the specified interval.
> When it actually runs is within the gift of the scheduler and depends
> entirely on how many other runnable tasks there are and what priorities
> they have.
>
> If you want absolute control of the timings then you have to use a
> tasklet or timer (as per the original implementation)

Yep, I agree entirely. =A0The problem with the previous solution arrived be=
cause=20
of the fact that by nature of the way the LCD updates work, they're not=20
atomic - ie there's a minimum write time between each write. =A0Because=20
tasklets cannot sleep, it ends up turning into a can of worms to ensure tha=
t=20
you waited long enough, etc.=20

The old solution of writing the cmd reg one tasklet run, and the data reg t=
he=20
next generated some nasty race conditions that Grant spotted - specifically=
,=20
with lcd_print. =A0It stops the tasklet, does its thing, and restarts it. =
=A0
Unfortunately, if the tasklet had written the cmd reg before, it now expect=
s=20
to write the data reg next. This seems to be the cause of the missing lcd=20
characters you sometimes ended up with if you tried to make heavy use of=20
lcd_print.

Personally, I think the workqueue idea is better, partly because of the fac=
t=20
that it greatly simplifies led_LCD_driver, and partly because of the fact=20
that by running quite a bit less often, should impose lower CPU time usage.
(and not just because I wrote the patch ;)

Cheers,

David

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On Sat, Mar 26, 2005 at 10:48:06AM -0500, John David Anglin wrote:
> I've had this problem from time to time, particularly on server
> machines.  My c3k is solid and this doesn't happen.  For some reason,
> the libjava build is most prone to the segfaults in sh/bash and
> sometimes make.  Grant's recent builds on gsyprf11 seem to have
> changed the nature of the faults.

The Astro chipset IOC_CTRL register was being programmed differently
by each firmware. The workstation firmware was more conservative.
I've aligned the chipset programming and it seems to have helped
on the a500 with this change:
	http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2005-February/035337.html

>   Now, the kernel panics instead
> of a segfault in sh.  Grant would know more as to what's causing
> these crashes.

Yeah, we are still seeing this a few times per month too. :^(
I don't understand the copy_user_page_asm/do_dp_write data page fault.
But I'm no VM guru either. Randolph thinks the parameter regs look
valid in the tombstone.

> > - The libjava build sometimes fails with an sh/bash error. Restarting
> >   the build usually fixes this.
> 
> :(  I've been hoping that some of these issues are caused by the put_user
> problem.

The Astro change above should stabilize it a bit better.
Please try a 2.6.11-pa[34] (or later) kernel.

Similarly on pa8800, for kernel builds gcc/make/et al will segfault
and gcc sometimes claims internal errors.
It stinks like a chipset/cache coherency issue but I don't see it.
jejb isn't seeing any that might be related to VIVT cache either.

My suspicion is we still have a bug outstanding that is causing
register corruption - similar to the GR26 corruption you found
last December. I've written builds-tools/regtest.c to try
to capture the corruption from the user space side but
it's not working:
	http://cvs.parisc-linux.org/build-tools/regtest.c

I'd like to extend that test to also cover FP regs.
Maybe after debugging ext2_find_next_zero and debugging
why mpt (u320 SCSI) HPMCs on module load.

grant
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On Sat, Mar 26, 2005 at 11:58:52AM +0000, Joel Soete wrote:
> is the ~63 or 63UL?

63UL is better. But in this case it really doesn't matter.
The bitmaps aren't (yet) 512MB in size.

It should be ~(BIT_PER_LONG-1)....the next step to make the
whole thing usable for 32-bit.

grant
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] Easy Firmware Upgrade for C180
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On Sat, Mar 26, 2005 at 10:25:10AM -0600, Erik T.Crouch wrote:
> Ok, the HP instructions are wacky saying to use a tape writing the 
> image via dd.

The same LIF image that can be dd'd to tape can be written to a
hard disk or netbooted (using DHCP and TFTP, IIRC).

> Is there ANY way of making the firmware image extractable/writable to a 
> CD, I also do not have a floppy drive.

I don't know.
See PALO documentation in:
	http://www.tldp.org/HOWTO/PA-RISC-Linux-Boot-HOWTO/index.html

It's been easier for me to dd to a hard disk (or netboot) than figure out
how to make/burn bootable parisc CDs. :^)

grant
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On Sat, Mar 26, 2005 at 03:35:40AM -0700, Grant Grundler wrote:
> James Bottomley in a private conversation suggested our
> ext2_test_bit() and ext2_find_next_zero_bit() might not
> be counting bits the same way in the bitmap.

James, kudos and thank you.

With appended patch, I'm getting reasonable ext3 performance.
Can someone please test this patch in a 32-bit kernel?

I'm comfortable this patch works for 64-bit since I've been building
kernels and running rsync across 3 disks with no problems.
I *think* the code is 32-bit clean as well, but haven't tested it.


Some minor additional, interesting things folks can do:
o Should this function should really be "static inline"?
  sparc64 puts it into arch/sparc64/lib :
  grundler <502>fgrep find_next_zero_le arch/sparc64/lib/find_bit.c 
  unsigned long find_next_zero_le_bit(unsigned long *addr, unsigned long size, unsigned long offset)

  How often is it called? More than three/four times would make
  it candidate for lib.

o ffz() is expanded inline. Restructure code so we don't
  need find_middle_swap() label. Ie do endian swap inside
  the conditional...but then the loop gets uglier and
  parisc can't use a conditional branch.
  Making this a normal function might make this item irrelevant.

o drop or optimize "if (tmp == ~0UL)" right before found_middle label.
  ffz() isn't that expensive compared to a mis-predicted branch.
  Figure out how many cycles ffz() costs, how many cycles a
  mispredicted branch costs, and then what the right tradeoff
  is in this case (including reduced code size).

Simple test results follow and then the patch.

riot:/mnt3# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sdk3             16146848   1649084  13677540  11% /
/dev/sdk1               189387     97070     82539  55% /boot
/dev/sdb              17504036  14616368   1998508  88% /mnt3
/dev/sdu              17504036  14616368   1998508  88% /mnt2
/dev/sdv              17504036   5128996  11485880  31% /mnt

grundler@riot:/$ lsscsi
[0:0:0:0]    disk    SEAGATE  ST318203LC       HP02  /dev/sda
[0:0:1:0]    disk    SEAGATE  ST318203LC       HP02  /dev/sdb
...
[5:0:12:0]   disk    SEAGATE  ST318451LC       HP01  /dev/sdu
[5:0:13:0]   disk    SEAGATE  ST318451LC       HP01  /dev/sdv


riot:/mnt# time tar xjf linux-2.6.12-rc1-pa3.tar.bz2 

real    0m51.988s
user    0m44.175s
sys     0m7.912s

riot:/mnt# cd ../mnt2
riot:/mnt2# time tar xjf /mnt/linux-2.6.12-rc1-pa3.tar.bz2 

real    0m52.338s
user    0m44.232s
sys     0m7.912s
riot:/mnt2# cd /mnt3  
riot:/mnt3# time tar xjf /mnt/linux-2.6.12-rc1-pa3.tar.bz2 

real    0m54.755s
user    0m44.181s
sys     0m7.998s


iostat 10 second sample while running tar:

avg-cpu:  %user   %nice    %sys %iowait   %idle
          43.73    0.00   11.14    9.95   35.18

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sdb               0.00         0.00         0.00          0          0
sdu               0.00         0.00         0.00          0          0
sdv             130.87         2.40     11723.48         24     117352


thanks,
grant


Signed-off-by: Grant Grundler <grundler@parisc-linux.org>


Index: include/asm-parisc/bitops.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/bitops.h,v
retrieving revision 1.15
diff -u -p -r1.15 bitops.h
--- include/asm-parisc/bitops.h	24 Mar 2005 15:26:29 -0000	1.15
+++ include/asm-parisc/bitops.h	27 Mar 2005 01:09:41 -0000
@@ -466,52 +466,67 @@ static __inline__ int ext2_test_bit(int 
 	return (ADDR[nr >> 3] >> (nr & 7)) & 1;
 }
 
-/*
- * This implementation of ext2_find_{first,next}_zero_bit was stolen from
- * Linus' asm-alpha/bitops.h and modified for a big-endian machine.
- */
+/* include/linux/byteorder does not support "unsigned long" type */
+static inline unsigned long ext2_swabp(unsigned long * x)
+{
+#ifdef CONFIG_64BIT
+	return (unsigned long) __swab64p((u64 *) x);
+#else
+	return (unsigned long) __swab32p((u32 *) x);
+#endif
+}
 
-#define ext2_find_first_zero_bit(addr, size) \
-        ext2_find_next_zero_bit((addr), (size), 0)
+/* include/linux/byteorder doesn't support "unsigned long" type */
+static inline unsigned long ext2_swab(unsigned long y)
+{
+#ifdef CONFIG_64BIT
+	return (unsigned long) __swab64((u64) y);
+#else
+	return (unsigned long) __swab32((u32) y);
+#endif
+}
 
-extern __inline__ unsigned long ext2_find_next_zero_bit(void *addr,
-	unsigned long size, unsigned long offset)
+static __inline__ unsigned long ext2_find_next_zero_bit(unsigned long *addr, unsigned long size, unsigned long offset)
 {
-	unsigned int *p = ((unsigned int *) addr) + (offset >> 5);
-	unsigned int result = offset & ~31UL;
-	unsigned int tmp;
+	unsigned long *p = addr + (offset >> SHIFT_PER_LONG);
+	unsigned long result = offset & ~(BITS_PER_LONG - 1);
+	unsigned long tmp;
 
 	if (offset >= size)
 		return size;
 	size -= result;
-	offset &= 31UL;
-	if (offset) {
-		tmp = cpu_to_le32p(p++);
-		tmp |= ~0UL >> (32-offset);
-		if (size < 32)
+	offset &= (BITS_PER_LONG - 1UL);
+	if(offset) {
+		tmp = ext2_swabp(p++);
+		tmp |= (~0UL >> (BITS_PER_LONG - offset));
+		if(size < BITS_PER_LONG)
 			goto found_first;
-		if (tmp != ~0U)
+		if(~tmp)
 			goto found_middle;
-		size -= 32;
-		result += 32;
+		size -= BITS_PER_LONG;
+		result += BITS_PER_LONG;
 	}
-	while (size >= 32) {
-		if ((tmp = *p++) != ~0U)
+
+	while(size & ~(BITS_PER_LONG - 1)) {
+		if(~(tmp = *(p++)))
 			goto found_middle_swap;
-		result += 32;
-		size -= 32;
+		result += BITS_PER_LONG;
+		size -= BITS_PER_LONG;
 	}
-	if (!size)
+	if(!size)
 		return result;
-	tmp = cpu_to_le32p(p);
+	tmp = ext2_swabp(p);
 found_first:
-	tmp |= ~0U << size;
+	tmp |= ~0UL << size;
+	if (tmp == ~0UL)	/* Are any bits zero? */
+		return result + size; /* Nope. Skip ffz */
 found_middle:
 	return result + ffz(tmp);
+
 found_middle_swap:
-	tmp = cpu_to_le32(tmp);
-	return result + ffz(tmp);
+	return result + ffz(ext2_swab(tmp));
 }
+
 
 /* Bitmap functions for the minix filesystem.  */
 #define minix_test_and_set_bit(nr,addr) ext2_set_bit(nr,addr)
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Xref: news.gmane.org gmane.linux.ports.parisc:22510

On Sat, Mar 26, 2005 at 03:14:41PM +0000, David Pye wrote:
> Attached! The only real change now is that the minimum on-time is now LCD 
> only, so hopefully this gets us the best of both worlds. LED people won't 
> notice anything different, and the LCD should now be nicely responsive.

I've attached the patch I'm willing to commit...works for me.

And I really like the work-queue implementation. It nicely
solves the cmd/data pair problem and consolidates more of the
support in led.c.  The only drawback I can see so far is the
scheduler may chose to not run the led_func when it needs to
be run. If a machine is really busy, only the hearbeat will
suffer and I expect users will get other clues that the machine
is just really busy.

Sorry - I can't get warm to the implementation of minimum on time.
It was really cluttering up the main routine.
Can I commit this patch for now and then we follow up with another
patch for minimum on-time?

I think I would be ok with it implemented inside the led_get*
activity routines. They have access to lastleds and jiffies and
that should be enough to figure out how long an LED should stay
on if it's already on.  The main routine can stay simple/readable.

I also just realized because led_get* routines are static inline,
led_lanrxtx and led_diskio tests can be moved to the respective
routines as well with no harm to performance. May be a bad idea
though since current construct is pretty obvious what they do.

cheers,
grant


Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Index: arch/parisc/kernel/time.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/time.c,v
retrieving revision 1.9
diff -u -p -r1.9 time.c
--- arch/parisc/kernel/time.c	21 Oct 2004 18:58:24 -0000	1.9
+++ arch/parisc/kernel/time.c	27 Mar 2005 08:33:00 -0000
@@ -89,14 +89,6 @@ irqreturn_t timer_interrupt(int irq, voi
 		}
 	}
     
-#ifdef CONFIG_CHASSIS_LCD_LED
-	/* Only schedule the led tasklet on cpu 0, and only if it
-	 * is enabled.
-	 */
-	if (cpu == 0 && !atomic_read(&led_tasklet.count))
-		tasklet_schedule(&led_tasklet);
-#endif
-
 	/* check soft power switch status */
 	if (cpu == 0 && !atomic_read(&power_tasklet.count))
 		tasklet_schedule(&power_tasklet);
Index: drivers/parisc/led.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/led.c,v
retrieving revision 1.12
diff -u -p -r1.12 led.c
--- drivers/parisc/led.c	18 Mar 2005 13:17:10 -0000	1.12
+++ drivers/parisc/led.c	27 Mar 2005 08:33:00 -0000
@@ -18,6 +18,9 @@
  * Changes:
  *      - Audit copy_from_user in led_proc_write.
  *                                Daniele Bellucci <bellucda@tiscali.it>
+ *	- Switch from using a tasklet to a work queue, so the led_LCD_driver
+ *	  	can sleep.
+ *	  			  David Pye <dmp@davidmpye.dyndns.org>
  */
 
 #include <linux/config.h>
@@ -37,6 +40,7 @@
 #include <linux/proc_fs.h>
 #include <linux/ctype.h>
 #include <linux/blkdev.h>
+#include <linux/workqueue.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/hardware.h>
@@ -46,25 +50,30 @@
 #include <asm/uaccess.h>
 
 /* The control of the LEDs and LCDs on PARISC-machines have to be done 
-   completely in software. The necessary calculations are done in a tasklet
-   which is scheduled at every timer interrupt and since the calculations 
-   may consume relatively much CPU-time some of the calculations can be 
+   completely in software. The necessary calculations are done in a work queue
+   task which is scheduled regularly, and since the calculations may consume a 
+   relatively large amount of CPU time, some of the calculations can be 
    turned off with the following variables (controlled via procfs) */
 
 static int led_type = -1;
-static int led_heartbeat = 1;
-static int led_diskio = 1;
-static int led_lanrxtx = 1;
+static unsigned char lastleds;	/* LED state from most recent update */
+static unsigned int led_heartbeat = 1;
+static unsigned int led_diskio = 1;
+static unsigned int led_lanrxtx = 1;
 static char lcd_text[32];
 static char lcd_text_default[32];
 
+
+static struct workqueue_struct *led_wq;
+static void led_work_func(void *);
+static DECLARE_WORK(led_task, led_work_func, NULL);
+
 #if 0
 #define DPRINTK(x)	printk x
 #else
 #define DPRINTK(x)
 #endif
 
-
 struct lcd_block {
 	unsigned char command;	/* stores the command byte      */
 	unsigned char on;	/* value for turning LED on     */
@@ -115,12 +124,24 @@ lcd_info __attribute__((aligned(8))) =
 #define LCD_DATA_REG	lcd_info.lcd_data_reg_addr	 
 #define LED_DATA_REG	lcd_info.lcd_cmd_reg_addr	/* LASI & ASP only */
 
+#define LED_HASLCD 1
+#define LED_NOLCD  0
+
+/* The workqueue must be created at init-time */
+static int start_task(void) 
+{	
+	/* Create the work queue and queue the LED task */
+	led_wq = create_singlethread_workqueue("led_wq");	
+	queue_work(led_wq, &led_task);
+
+	return 0;
+}
+
+device_initcall(start_task);
 
 /* ptr to LCD/LED-specific function */
 static void (*led_func_ptr) (unsigned char);
 
-#define LED_HASLCD 1
-#define LED_NOLCD  0
 #ifdef CONFIG_PROC_FS
 static int led_proc_read(char *page, char **start, off_t off, int count, 
 	int *eof, void *data)
@@ -285,52 +306,35 @@ static void led_LASI_driver(unsigned cha
 /*
    ** 
    ** led_LCD_driver()
-   ** 
-   ** The logic of the LCD driver is, that we write at every scheduled call
-   ** only to one of LCD_CMD_REG _or_ LCD_DATA_REG - registers.
-   ** That way we don't need to let this tasklet busywait for min_cmd_delay
-   ** milliseconds.
-   **
-   ** TODO: check the value of "min_cmd_delay" against the value of HZ.
    **   
  */
 static void led_LCD_driver(unsigned char leds)
 {
-	static int last_index;	/* 0:heartbeat, 1:disk, 2:lan_in, 3:lan_out */
-	static int last_was_cmd;/* 0: CMD was written last, 1: DATA was last */
-	struct lcd_block *block_ptr;
-	int value;
-
-	switch (last_index) {
-	    case 0:	block_ptr = &lcd_info.heartbeat;
-			value = leds & LED_HEARTBEAT;
-			break;
-	    case 1:	block_ptr = &lcd_info.disk_io;
-			value = leds & LED_DISK_IO;
-			break;					
-	    case 2:	block_ptr = &lcd_info.lan_rcv;
-			value = leds & LED_LAN_RCV;
-			break;					
-	    case 3:	block_ptr = &lcd_info.lan_tx;
-			value = leds & LED_LAN_TX;
-			break;
-	    default:	/* should never happen: */
-			return;
-	}
-
-	if (last_was_cmd) {
-	    /* write the value to the LCD data port */
-    	    gsc_writeb( value ? block_ptr->on : block_ptr->off, LCD_DATA_REG );
-	} else {
-	    /* write the command-byte to the LCD command register */
-    	    gsc_writeb( block_ptr->command, LCD_CMD_REG );
-	}    
-	
-	/* now update the vars for the next interrupt iteration */ 
-	if (++last_was_cmd == 2) { /* switch between cmd & data */
-	    last_was_cmd = 0;
-	    if (++last_index == 4) 
-		last_index = 0;	 /* switch back to heartbeat index */
+	static int i;
+	static unsigned char mask[4] = { LED_HEARTBEAT, LED_DISK_IO,
+		LED_LAN_RCV, LED_LAN_TX };
+	
+	static struct lcd_block * blockp[4] = {
+		&lcd_info.heartbeat,
+		&lcd_info.disk_io,
+		&lcd_info.lan_rcv,
+		&lcd_info.lan_tx
+	};
+
+	/* Convert min_cmd_delay to milliseconds */
+	unsigned int msec_cmd_delay = 1 + (lcd_info.min_cmd_delay / 1000);
+	
+	for (i=0; i<4; ++i) 
+	{
+		if ((leds & mask[i]) != (lastleds & mask[i])) 
+		{
+			gsc_writeb( blockp[i]->command, LCD_CMD_REG );
+			msleep(msec_cmd_delay);
+			
+			gsc_writeb( leds & mask[i] ? blockp[i]->on : 
+					blockp[i]->off, LCD_DATA_REG );
+			msleep(msec_cmd_delay);
+		}
 	}
 }
 
@@ -355,7 +359,7 @@ static __inline__ int led_get_net_activi
 
 	rx_total = tx_total = 0;
 	
-	/* we are running as tasklet, so locking dev_base 
+	/* we are running as a workqueue task, so locking dev_base 
 	 * for reading should be OK */
 	read_lock(&dev_base_lock);
 	for (dev = dev_base; dev; dev = dev->next) {
@@ -402,7 +406,7 @@ static __inline__ int led_get_diskio_act
 	static unsigned long last_pgpgin, last_pgpgout;
 	struct page_state pgstat;
 	int changed;
-	
+
 	get_full_page_state(&pgstat); /* get no of sectors in & out */
 
 	/* Just use a very simple calculation here. Do not care about overflow,
@@ -410,86 +414,68 @@ static __inline__ int led_get_diskio_act
 	changed = (pgstat.pgpgin != last_pgpgin) || (pgstat.pgpgout != last_pgpgout);
 	last_pgpgin  = pgstat.pgpgin;
 	last_pgpgout = pgstat.pgpgout;
-	
+
 	return (changed ? LED_DISK_IO : 0);
 }
 
 
 
 /*
-   ** led_tasklet_func()
+   ** led_work_func()
    ** 
-   ** is scheduled at every timer interrupt from time.c and
-   ** updates the chassis LCD/LED 
+   ** manages when and which chassis LCD/LED gets updated
 
     TODO:
     - display load average (older machines like 715/64 have 4 "free" LED's for that)
     - optimizations
  */
 
-#define HEARTBEAT_LEN (HZ*6/100)
-#define HEARTBEAT_2ND_RANGE_START (HZ*22/100)
+#define HEARTBEAT_LEN (HZ*10/100)
+#define HEARTBEAT_2ND_RANGE_START (HZ*28/100)
 #define HEARTBEAT_2ND_RANGE_END   (HEARTBEAT_2ND_RANGE_START + HEARTBEAT_LEN)
 
-#define NORMALIZED_COUNT(count) (count/(HZ/100))
+#define LED_UPDATE_INTERVAL (1 + (HZ*19/1000))
 
-static void led_tasklet_func(unsigned long unused)
+static void led_work_func (void *unused)
 {
-	static unsigned char lastleds;
-	unsigned char currentleds; /* stores current value of the LEDs */
-	static unsigned long count; /* static incremented value, not wrapped */
 	static unsigned long count_HZ; /* counter in range 0..HZ */
+	unsigned char currentleds = 0; /* stores current value of the LEDs */
 
 	/* exit if not initialized */
 	if (!led_func_ptr)
 	    return;
 
-	/* increment the local counters */
-	++count;
-	if (++count_HZ == HZ)
+	/* increment the local counter */
+	count_HZ += LED_UPDATE_INTERVAL;
+	if (count_HZ >= HZ)
 	    count_HZ = 0;
 
-	currentleds = lastleds;
-
 	if (led_heartbeat)
 	{
-		/* flash heartbeat-LED like a real heart (2 x short then a long delay) */
-		if (count_HZ<HEARTBEAT_LEN || 
-		    (count_HZ>=HEARTBEAT_2ND_RANGE_START && count_HZ<HEARTBEAT_2ND_RANGE_END)) 
-		    currentleds |= LED_HEARTBEAT;
-		else
-		    currentleds &= ~LED_HEARTBEAT;
+		/* flash heartbeat-LED like a real heart
+		 * (2 x short then a long delay)
+		 */
+		if (count_HZ < HEARTBEAT_LEN || 
+				(count_HZ >= HEARTBEAT_2ND_RANGE_START &&
+				count_HZ < HEARTBEAT_2ND_RANGE_END)) 
+			currentleds |= LED_HEARTBEAT;
 	}
 
-	/* look for network activity and flash LEDs respectively */
-	if (led_lanrxtx && ((NORMALIZED_COUNT(count)+(8/2)) & 7) == 0)
-	{
-		currentleds &= ~(LED_LAN_RCV | LED_LAN_TX);
-		currentleds |= led_get_net_activity();
-	}
-
-	/* avoid to calculate diskio-stats at same irq  as netio-stats */
-	if (led_diskio && (NORMALIZED_COUNT(count) & 7) == 0)
-	{
-		currentleds &= ~LED_DISK_IO;
-		currentleds |= led_get_diskio_activity();
-	}
+	if (led_lanrxtx)  currentleds |= led_get_net_activity();
+	if (led_diskio)   currentleds |= led_get_diskio_activity();
 
 	/* blink all LEDs twice a second if we got an Oops (HPMC) */
-	if (oops_in_progress) {
+	if (oops_in_progress) 
 		currentleds = (count_HZ<=(HZ/2)) ? 0 : 0xff;
-	}
-	
-	/* update the LCD/LEDs */
-	if (currentleds != lastleds) {
-	    led_func_ptr(currentleds);
-	    lastleds = currentleds;
-	}
-}
 
-/* main led tasklet struct (scheduled from time.c) */
-DECLARE_TASKLET_DISABLED(led_tasklet, led_tasklet_func, 0);
+	if (currentleds != lastleds)
+	{
+		led_func_ptr(currentleds);	/* Update the LCD/LEDs */
+		lastleds = currentleds;
+	}
 
+	queue_delayed_work(led_wq, &led_task, LED_UPDATE_INTERVAL);
+}
 
 /*
    ** led_halt()
@@ -519,9 +505,13 @@ static int led_halt(struct notifier_bloc
 	default:		return NOTIFY_DONE;
 	}
 	
-	/* completely stop the LED/LCD tasklet */
-	tasklet_disable(&led_tasklet);
-
+	/* Cancel the work item and delete the queue */
+	if (led_wq) {
+		if (cancel_delayed_work(&led_task) == 0) 
+			flush_workqueue(led_wq);
+		destroy_workqueue(led_wq);
+	}
+ 
 	if (lcd_info.model == DISPLAY_MODEL_LCD)
 		lcd_print(txt);
 	else
@@ -586,9 +576,6 @@ int __init register_led_driver(int model
 	initialized++;
 	register_reboot_notifier(&led_notifier);
 
-	/* start the led tasklet for the first time */
-	tasklet_enable(&led_tasklet);
-	
 	return 0;
 }
 
@@ -623,7 +610,7 @@ void __init register_led_regions(void)
    ** lcd_print()
    ** 
    ** Displays the given string on the LCD-Display of newer machines.
-   ** lcd_print() disables the timer-based led tasklet during its 
+   ** lcd_print() disables the timer-based led work task during its 
    ** execution and enables it afterwards again.
    **
  */
@@ -634,12 +621,14 @@ int lcd_print( char *str )
 	if (!led_func_ptr || lcd_info.model != DISPLAY_MODEL_LCD)
 	    return 0;
 	
-	/* temporarily disable the led tasklet */
-	tasklet_disable(&led_tasklet);
-
+	/* temporarily disable the led work task */
+	if (led_wq) {
+		if (cancel_delayed_work(&led_task) == 0) 
+			flush_workqueue(led_wq);
+	}
 	/* copy display string to buffer for procfs */
 	strlcpy(lcd_text, str, sizeof(lcd_text));
-	
+
 	/* Set LCD Cursor to 1st character */
 	gsc_writeb(lcd_info.reset_cmd1, LCD_CMD_REG);
 	udelay(lcd_info.min_cmd_delay);
@@ -653,8 +642,10 @@ int lcd_print( char *str )
 	    udelay(lcd_info.min_cmd_delay);
 	}
 	
-	/* re-enable the led tasklet */
-	tasklet_enable(&led_tasklet);
+	/* re-queue the work */
+	if (led_wq) {
+		queue_work(led_wq, &led_task);
+	}
 
 	return lcd_info.lcd_width;
 }
Index: include/asm-parisc/led.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/led.h,v
retrieving revision 1.3
diff -u -p -r1.3 led.h
--- include/asm-parisc/led.h	30 Dec 2004 08:07:48 -0000	1.3
+++ include/asm-parisc/led.h	27 Mar 2005 08:33:00 -0000
@@ -23,9 +23,6 @@
 
 #define LED_CMD_REG_NONE 0		/* NULL == no addr for the cmd register */
 
-/* led tasklet struct */
-extern struct tasklet_struct led_tasklet;

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On Sunday 27 March 2005 09:53, Grant Grundler wrote:
> On Sat, Mar 26, 2005 at 03:14:41PM +0000, David Pye wrote:
> > Attached! The only real change now is that the minimum on-time is now L=
CD
> > only, so hopefully this gets us the best of both worlds. LED people won=
't
> > notice anything different, and the LCD should now be nicely responsive.
>
> I've attached the patch I'm willing to commit...works for me.
>
> And I really like the work-queue implementation. It nicely
> solves the cmd/data pair problem and consolidates more of the
> support in led.c.  The only drawback I can see so far is the
> scheduler may chose to not run the led_func when it needs to
> be run. If a machine is really busy, only the hearbeat will
> suffer and I expect users will get other clues that the machine
> is just really busy.

Yep, that's what I'd guess too.

> Sorry - I can't get warm to the implementation of minimum on time.
> It was really cluttering up the main routine.
> Can I commit this patch for now and then we follow up with another
> patch for minimum on-time?

Sure.  It definitely cluttered up the main routine, and I wasn't particular=
ly=20
happy with having to include an if conditional testing led_type in the=20
generic routine.  Hopefully a better idea on how to handle it will emerge=20
shortly.

> I think I would be ok with it implemented inside the led_get*
> activity routines. They have access to lastleds and jiffies and
> that should be enough to figure out how long an LED should stay
> on if it's already on.  The main routine can stay simple/readable.

Yep, I hadn't really thought of doing it in there - I'll have a play with i=
t=20
and maybe annoy everyone with another patch in a bit.   Downside is that it=
's=20
not really the right place to put it *if* you want it to be lcd-only.

The only other way to do it which you might not find as ugly is to move thi=
s=20
into the drivers.  ie the drivers would need to be given the responsibility=
=20
of deciding whether they need to update anything (ie each of them has to=20
store currentleds rather than the generic calculator function). That way,=20
they'll get called each time the work runs, but can decide for themselves=20
whether to actually do anything.  It's only a couple of lines to add to the=
=20
other functions e.g. lasi.   How does that sound?

> I also just realized because led_get* routines are static inline,
> led_lanrxtx and led_diskio tests can be moved to the respective
> routines as well with no harm to performance. May be a bad idea
> though since current construct is pretty obvious what they do.
>
> cheers,
> grant

Cheers,

David

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Grant Grundler wrote:
> On Sat, Mar 26, 2005 at 03:35:40AM -0700, Grant Grundler wrote:
> 
>>James Bottomley in a private conversation suggested our
>>ext2_test_bit() and ext2_find_next_zero_bit() might not
>>be counting bits the same way in the bitmap.
> 
> 
> James, kudos and thank you.
> 
> With appended patch, I'm getting reasonable ext3 performance.
> Can someone please test this patch in a 32-bit kernel?
> 
Obviously ;-)

> I'm comfortable this patch works for 64-bit since I've been building
> kernels and running rsync across 3 disks with no problems.
> I *think* the code is 32-bit clean as well, but haven't tested it.
> 
on my c110 no pb to boot :-)
some rsync test (on non mirored slices on 2 different disk but on the same scsi ctrlr ncr53c720):
# time rsync -a /Debian-apt/SRC/linux-2.6.12-rc1-pa4-050327 /Sources/CVS-tst

real    3m34.512s
user    1m0.730s
sys     1m6.440s

# du -sk /Debian-apt/SRC/linux-2.6.12-rc1-pa4-050327
256616  /Debian-apt/SRC/linux-2.6.12-rc1-pa4-050327

...

> Simple test results follow and then the patch.
> 
# bdf
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/md2               1692128   1194620    411552  75% /
tmpfs                   256300         0    256300   0% /dev/shm
/dev/md0                123699    112645      4667  97% /boot
/dev/md3                247407     82537    152096  36% /var
/dev/md4                123635      4129    113122   4% /tmp
/dev/md5                123635     15749    101502  14% /home
/dev/sdb9              1513656    968940    529340  65% /Debian-apt
/dev/sda9              1513656   1011696    425068  71% /Sources
/dev/sdc5              1692220    913028    693232  57% /chroot
/dev/sdc3               123767      8728    108649   8% /chroot/boot
/dev/sdc6               247511    107636    127096  46% /chroot/var
/dev/sdc7               123735      4130    113216   4% /chroot/tmp
/dev/sdc8               123735      4144    113202   4% /chroot/home
/dev/sdc9              1513656    473444   1024836  32% /chroot/Develop

...

> grundler@riot:/$ lsscsi
Not yet lsscsi

> 
> riot:/mnt# time tar xjf linux-2.6.12-rc1-pa3.tar.bz2 
> 
I prefer simply tar and so:
# cd /Debian-apt/SRC
# time tar -cslpf /chroot/Develop/linux-2.6.12-rc1-pa4.tar2 linux-2.6.12-rc1-pa4-050327

real    0m38.487s
user    0m3.690s
sys     0m18.650s

a sample iostat too :-)
avg-cpu:  %user   %nice    %sys %iowait   %idle
           15.70    0.00   47.00   37.30    0.00

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda               2.50         0.00        19.60          0        196
sdb             297.30      5906.40        89.20      59064        892
sdc              15.10         0.00      7712.80          0      77128
md0               0.00         0.00         0.00          0          0
md5               0.00         0.00         0.00          0          0
md4               0.00         0.00         0.00          0          0
md3               0.20         0.00         0.40          0          4
md2               2.00         0.00        16.00          0        160
md1               0.00         0.00         0.00          0          0


# cd /chroot/Develop

# time tar -xslpf linux-2.6.12-rc1-pa4.tar2

real    1m32.901s
user    0m4.880s
sys     0m30.000s

another iostat sample:
avg-cpu:  %user   %nice    %sys %iowait   %idle
           13.19    0.00   39.66   47.15    0.00

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda               0.00         0.00         0.00          0          0
sdb               0.00         0.00         0.00          0          0
sdc             173.33      4542.66      6186.61      45472      61928
md0               0.00         0.00         0.00          0          0
md5               0.00         0.00         0.00          0          0
md4               0.00         0.00         0.00          0          0
md3               0.00         0.00         0.00          0          0
md2               0.00         0.00         0.00          0          0
md1               0.00         0.00         0.00          0          0


still have to test on a quicker system as the b2k if that could solve the bug I reproduce on 32bit kernel
(cf patch log message:"... I suspect the real problem is ffz() wants
	an unsigned long and was getting garbage in the top half of the
	unsigned int. Not confirmed but that's what I suspect.)

Thanks,
	Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:22513

im having trouble with booting the 2.6 kernels on a k460.

--------------------------------------------------------
CPU(s): 4 x PA8000 (PCX-U) at 180.000000 MHz
Setting cache flush threshold to 40 (4 CPUs online)
Found U2 at 0xfff8a000
kernel BUG at drivers/parisc/ccio-dma.c:1317!
Backtrace:
 [<1025b0e0>] ccio_ioc_init+0x284/0x29c
 [<10131530>] printk+0x20/0x2c
 [<1025b5d4>] ccio_probe+0xd4/0x1f4
 [<10246588>] kobject_hotplug+0x27c/0x2e8
 [<101122e4>] parisc_driver_probe+0x2c/0x60
 [<1027fab4>] driver_probe_device+0x38/0x88
 [<1027fc5c>] driver_attach+0x84/0xc0
 [<102801cc>] bus_add_driver+0xa4/0xcc
 [<10280740>] driver_register+0x70/0x7c
 [<10104db4>] init+0x268/0x340
 [<1010dc5c>] ret_from_kernel_thread+0x1c/0x24

Kernel panic - not syncing: BUG!
----------------------------------------------------
i get this error with linux-2.6.12-rc1-pa4 and linux-2.6.11_p2

gcc version 3.3.5  (Gentoo Linux 3.3.5-r1, pie-8.7.7.1)
binutils-2.15.92.0.2-r1
tanya src # uname -a

Linux tanya 2.4.27-pa4 #6 SMP Wed Mar 23 19:05:42 CET 2005 parisc PA8000 
(PCX-U) 9000/889/K460 GNU/Linux

http://www.ing.umu.se/~dizzey/System.map

i hope this is sufficient

/dizzey
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Xref: news.gmane.org gmane.linux.ports.parisc:22514

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Right, I've actually found and fixed what was the cause of the missing=20
heartbeats.  Although led minimum ontime 'fixes' it, it's actually a bandai=
d=20
for the real problem.

Could I ask you to have a glance at this patch? It's based on your previous=
=20
one, and only has a very minor change to the way count_HZ is incremented - =
ie=20
increment by the actual jiffies past, not the number we asked to be=20
rescheduled in.

On my system, the heart now beats regularly under IO/LAN traffic!

Cheers,

David

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	filename="led_lcd_patch5"

diff -urpN oldtree/arch/parisc/kernel/time.c newtree/arch/parisc/kernel/tim=
e.c
=2D-- oldtree/arch/parisc/kernel/time.c	2004-10-21 19:58:24.000000000 +0100
+++ newtree/arch/parisc/kernel/time.c	2005-03-27 18:30:29.000000000 +0100
@@ -89,14 +89,6 @@ irqreturn_t timer_interrupt(int irq, voi
 		}
 	}
    =20
=2D#ifdef CONFIG_CHASSIS_LCD_LED
=2D	/* Only schedule the led tasklet on cpu 0, and only if it
=2D	 * is enabled.
=2D	 */
=2D	if (cpu =3D=3D 0 && !atomic_read(&led_tasklet.count))
=2D		tasklet_schedule(&led_tasklet);
=2D#endif
=2D
 	/* check soft power switch status */
 	if (cpu =3D=3D 0 && !atomic_read(&power_tasklet.count))
 		tasklet_schedule(&power_tasklet);
diff -urpN oldtree/drivers/parisc/led.c newtree/drivers/parisc/led.c
=2D-- oldtree/drivers/parisc/led.c	2005-03-18 13:17:10.000000000 +0000
+++ newtree/drivers/parisc/led.c	2005-03-27 18:31:33.000000000 +0100
@@ -18,6 +18,9 @@
  * Changes:
  *      - Audit copy_from_user in led_proc_write.
  *                                Daniele Bellucci <bellucda@tiscali.it>
+ *	- Switch from using a tasklet to a work queue, so the led_LCD_driver
+ *	  	can sleep.
+ *	  			  David Pye <dmp@davidmpye.dyndns.org>
  */
=20
 #include <linux/config.h>
@@ -37,6 +40,7 @@
 #include <linux/proc_fs.h>
 #include <linux/ctype.h>
 #include <linux/blkdev.h>
+#include <linux/workqueue.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/hardware.h>
@@ -46,25 +50,30 @@
 #include <asm/uaccess.h>
=20
 /* The control of the LEDs and LCDs on PARISC-machines have to be done=20
=2D   completely in software. The necessary calculations are done in a task=
let
=2D   which is scheduled at every timer interrupt and since the calculation=
s=20
=2D   may consume relatively much CPU-time some of the calculations can be=
=20
+   completely in software. The necessary calculations are done in a work q=
ueue
+   task which is scheduled regularly, and since the calculations may consu=
me a=20
+   relatively large amount of CPU time, some of the calculations can be=20
    turned off with the following variables (controlled via procfs) */
=20
 static int led_type =3D -1;
=2Dstatic int led_heartbeat =3D 1;
=2Dstatic int led_diskio =3D 1;
=2Dstatic int led_lanrxtx =3D 1;
+static unsigned char lastleds;	/* LED state from most recent update */
+static unsigned int led_heartbeat =3D 1;
+static unsigned int led_diskio =3D 1;
+static unsigned int led_lanrxtx =3D 1;
 static char lcd_text[32];
 static char lcd_text_default[32];
=20
+
+static struct workqueue_struct *led_wq;
+static void led_work_func(void *);
+static DECLARE_WORK(led_task, led_work_func, NULL);
+
 #if 0
 #define DPRINTK(x)	printk x
 #else
 #define DPRINTK(x)
 #endif
=20
=2D
 struct lcd_block {
 	unsigned char command;	/* stores the command byte      */
 	unsigned char on;	/* value for turning LED on     */
@@ -115,12 +124,24 @@ lcd_info __attribute__((aligned(8))) =3D
 #define LCD_DATA_REG	lcd_info.lcd_data_reg_addr	=20
 #define LED_DATA_REG	lcd_info.lcd_cmd_reg_addr	/* LASI & ASP only */
=20
+#define LED_HASLCD 1
+#define LED_NOLCD  0
+
+/* The workqueue must be created at init-time */
+static int start_task(void)=20
+{=09
+	/* Create the work queue and queue the LED task */
+	led_wq =3D create_singlethread_workqueue("led_wq");=09
+	queue_work(led_wq, &led_task);
+
+	return 0;
+}
+
+device_initcall(start_task);
=20
 /* ptr to LCD/LED-specific function */
 static void (*led_func_ptr) (unsigned char);
=20
=2D#define LED_HASLCD 1
=2D#define LED_NOLCD  0
 #ifdef CONFIG_PROC_FS
 static int led_proc_read(char *page, char **start, off_t off, int count,=20
 	int *eof, void *data)
@@ -285,52 +306,35 @@ static void led_LASI_driver(unsigned cha
 /*
    **=20
    ** led_LCD_driver()
=2D   **=20
=2D   ** The logic of the LCD driver is, that we write at every scheduled c=
all
=2D   ** only to one of LCD_CMD_REG _or_ LCD_DATA_REG - registers.
=2D   ** That way we don't need to let this tasklet busywait for min_cmd_de=
lay
=2D   ** milliseconds.
=2D   **
=2D   ** TODO: check the value of "min_cmd_delay" against the value of HZ.
    **  =20
  */
 static void led_LCD_driver(unsigned char leds)
 {
=2D	static int last_index;	/* 0:heartbeat, 1:disk, 2:lan_in, 3:lan_out */
=2D	static int last_was_cmd;/* 0: CMD was written last, 1: DATA was last */
=2D	struct lcd_block *block_ptr;
=2D	int value;
=2D
=2D	switch (last_index) {
=2D	    case 0:	block_ptr =3D &lcd_info.heartbeat;
=2D			value =3D leds & LED_HEARTBEAT;
=2D			break;
=2D	    case 1:	block_ptr =3D &lcd_info.disk_io;
=2D			value =3D leds & LED_DISK_IO;
=2D			break;				=09
=2D	    case 2:	block_ptr =3D &lcd_info.lan_rcv;
=2D			value =3D leds & LED_LAN_RCV;
=2D			break;				=09
=2D	    case 3:	block_ptr =3D &lcd_info.lan_tx;
=2D			value =3D leds & LED_LAN_TX;
=2D			break;
=2D	    default:	/* should never happen: */
=2D			return;
=2D	}
+	static int i;
+	static unsigned char mask[4] =3D { LED_HEARTBEAT, LED_DISK_IO,
+		LED_LAN_RCV, LED_LAN_TX };
+=09
+	static struct lcd_block * blockp[4] =3D {
+		&lcd_info.heartbeat,
+		&lcd_info.disk_io,
+		&lcd_info.lan_rcv,
+		&lcd_info.lan_tx
+	};
=20
=2D	if (last_was_cmd) {
=2D	    /* write the value to the LCD data port */
=2D    	    gsc_writeb( value ? block_ptr->on : block_ptr->off, LCD_DATA_RE=
G );
=2D	} else {
=2D	    /* write the command-byte to the LCD command register */
=2D    	    gsc_writeb( block_ptr->command, LCD_CMD_REG );
=2D	}   =20
=2D=09
=2D	/* now update the vars for the next interrupt iteration */=20
=2D	if (++last_was_cmd =3D=3D 2) { /* switch between cmd & data */
=2D	    last_was_cmd =3D 0;
=2D	    if (++last_index =3D=3D 4)=20
=2D		last_index =3D 0;	 /* switch back to heartbeat index */
+	/* Convert min_cmd_delay to milliseconds */
+	unsigned int msec_cmd_delay =3D 1 + (lcd_info.min_cmd_delay / 1000);
+=09
+	for (i=3D0; i<4; ++i)=20
+	{
+		if ((leds & mask[i]) !=3D (lastleds & mask[i]))=20
+		{
+			gsc_writeb( blockp[i]->command, LCD_CMD_REG );
+			msleep(msec_cmd_delay);
+		=09
+			gsc_writeb( leds & mask[i] ? blockp[i]->on :=20
+					blockp[i]->off, LCD_DATA_REG );
+			msleep(msec_cmd_delay);
+		}
 	}
 }
=20
@@ -355,7 +359,7 @@ static __inline__ int led_get_net_activi
=20
 	rx_total =3D tx_total =3D 0;
 =09
=2D	/* we are running as tasklet, so locking dev_base=20
+	/* we are running as a workqueue task, so locking dev_base=20
 	 * for reading should be OK */
 	read_lock(&dev_base_lock);
 	for (dev =3D dev_base; dev; dev =3D dev->next) {
@@ -402,7 +406,7 @@ static __inline__ int led_get_diskio_act
 	static unsigned long last_pgpgin, last_pgpgout;
 	struct page_state pgstat;
 	int changed;
=2D=09
+
 	get_full_page_state(&pgstat); /* get no of sectors in & out */
=20
 	/* Just use a very simple calculation here. Do not care about overflow,
@@ -410,86 +414,70 @@ static __inline__ int led_get_diskio_act
 	changed =3D (pgstat.pgpgin !=3D last_pgpgin) || (pgstat.pgpgout !=3D last=
_pgpgout);
 	last_pgpgin  =3D pgstat.pgpgin;
 	last_pgpgout =3D pgstat.pgpgout;
=2D=09
+
 	return (changed ? LED_DISK_IO : 0);
 }
=20
=20
=20
 /*
=2D   ** led_tasklet_func()
+   ** led_work_func()
    **=20
=2D   ** is scheduled at every timer interrupt from time.c and
=2D   ** updates the chassis LCD/LED=20
+   ** manages when and which chassis LCD/LED gets updated
=20
     TODO:
     - display load average (older machines like 715/64 have 4 "free" LED's=
 for that)
     - optimizations
  */
=20
=2D#define HEARTBEAT_LEN (HZ*6/100)
=2D#define HEARTBEAT_2ND_RANGE_START (HZ*22/100)
+#define HEARTBEAT_LEN (HZ*10/100)
+#define HEARTBEAT_2ND_RANGE_START (HZ*28/100)
 #define HEARTBEAT_2ND_RANGE_END   (HEARTBEAT_2ND_RANGE_START + HEARTBEAT_L=
EN)
=20
=2D#define NORMALIZED_COUNT(count) (count/(HZ/100))
+#define LED_UPDATE_INTERVAL (1 + (HZ*19/1000))
=20
=2Dstatic void led_tasklet_func(unsigned long unused)
+static void led_work_func (void *unused)
 {
=2D	static unsigned char lastleds;
=2D	unsigned char currentleds; /* stores current value of the LEDs */
=2D	static unsigned long count; /* static incremented value, not wrapped */
+	static unsigned long last_jiffies =3D 0;
 	static unsigned long count_HZ; /* counter in range 0..HZ */
+	unsigned char currentleds =3D 0; /* stores current value of the LEDs */
=20
 	/* exit if not initialized */
 	if (!led_func_ptr)
 	    return;
=20
=2D	/* increment the local counters */
=2D	++count;
=2D	if (++count_HZ =3D=3D HZ)
+	/* increment the local counter */
+	count_HZ +=3D jiffies - last_jiffies;
+	if (count_HZ >=3D HZ)
 	    count_HZ =3D 0;
=2D
=2D	currentleds =3D lastleds;
+	last_jiffies =3D jiffies;
=20
 	if (led_heartbeat)
 	{
=2D		/* flash heartbeat-LED like a real heart (2 x short then a long delay)=
 */
=2D		if (count_HZ<HEARTBEAT_LEN ||=20
=2D		    (count_HZ>=3DHEARTBEAT_2ND_RANGE_START && count_HZ<HEARTBEAT_2ND_R=
ANGE_END))=20
=2D		    currentleds |=3D LED_HEARTBEAT;
=2D		else
=2D		    currentleds &=3D ~LED_HEARTBEAT;
=2D	}
=2D
=2D	/* look for network activity and flash LEDs respectively */
=2D	if (led_lanrxtx && ((NORMALIZED_COUNT(count)+(8/2)) & 7) =3D=3D 0)
=2D	{
=2D		currentleds &=3D ~(LED_LAN_RCV | LED_LAN_TX);
=2D		currentleds |=3D led_get_net_activity();
+		/* flash heartbeat-LED like a real heart
+		 * (2 x short then a long delay)
+		 */
+		if (count_HZ < HEARTBEAT_LEN ||=20
+				(count_HZ >=3D HEARTBEAT_2ND_RANGE_START &&
+				count_HZ < HEARTBEAT_2ND_RANGE_END))=20
+			currentleds |=3D LED_HEARTBEAT;
 	}
=20
=2D	/* avoid to calculate diskio-stats at same irq  as netio-stats */
=2D	if (led_diskio && (NORMALIZED_COUNT(count) & 7) =3D=3D 0)
=2D	{
=2D		currentleds &=3D ~LED_DISK_IO;
=2D		currentleds |=3D led_get_diskio_activity();
=2D	}
+	if (led_lanrxtx)  currentleds |=3D led_get_net_activity();
+	if (led_diskio)   currentleds |=3D led_get_diskio_activity();
=20
 	/* blink all LEDs twice a second if we got an Oops (HPMC) */
=2D	if (oops_in_progress) {
+	if (oops_in_progress)=20
 		currentleds =3D (count_HZ<=3D(HZ/2)) ? 0 : 0xff;
=2D	}
=2D=09
=2D	/* update the LCD/LEDs */
=2D	if (currentleds !=3D lastleds) {
=2D	    led_func_ptr(currentleds);
=2D	    lastleds =3D currentleds;
=2D	}
=2D}
=20
=2D/* main led tasklet struct (scheduled from time.c) */
=2DDECLARE_TASKLET_DISABLED(led_tasklet, led_tasklet_func, 0);
+	if (currentleds !=3D lastleds)
+	{
+		led_func_ptr(currentleds);	/* Update the LCD/LEDs */
+		lastleds =3D currentleds;
+	}
=20
+	queue_delayed_work(led_wq, &led_task, LED_UPDATE_INTERVAL);
+}
=20
 /*
    ** led_halt()
@@ -519,9 +507,13 @@ static int led_halt(struct notifier_bloc
 	default:		return NOTIFY_DONE;
 	}
 =09
=2D	/* completely stop the LED/LCD tasklet */
=2D	tasklet_disable(&led_tasklet);
=2D
+	/* Cancel the work item and delete the queue */
+	if (led_wq) {
+		if (cancel_delayed_work(&led_task) =3D=3D 0)=20
+			flush_workqueue(led_wq);
+		destroy_workqueue(led_wq);
+	}
+=20
 	if (lcd_info.model =3D=3D DISPLAY_MODEL_LCD)
 		lcd_print(txt);
 	else
@@ -586,9 +578,6 @@ int __init register_led_driver(int model
 	initialized++;
 	register_reboot_notifier(&led_notifier);
=20
=2D	/* start the led tasklet for the first time */
=2D	tasklet_enable(&led_tasklet);
=2D=09
 	return 0;
 }
=20
@@ -623,7 +612,7 @@ void __init register_led_regions(void)
    ** lcd_print()
    **=20
    ** Displays the given string on the LCD-Display of newer machines.
=2D   ** lcd_print() disables the timer-based led tasklet during its=20
+   ** lcd_print() disables the timer-based led work task during its=20
    ** execution and enables it afterwards again.
    **
  */
@@ -634,12 +623,14 @@ int lcd_print( char *str )
 	if (!led_func_ptr || lcd_info.model !=3D DISPLAY_MODEL_LCD)
 	    return 0;
 =09
=2D	/* temporarily disable the led tasklet */
=2D	tasklet_disable(&led_tasklet);
=2D
+	/* temporarily disable the led work task */
+	if (led_wq) {
+		if (cancel_delayed_work(&led_task) =3D=3D 0)=20
+			flush_workqueue(led_wq);
+	}
 	/* copy display string to buffer for procfs */
 	strlcpy(lcd_text, str, sizeof(lcd_text));
=2D=09
+
 	/* Set LCD Cursor to 1st character */
 	gsc_writeb(lcd_info.reset_cmd1, LCD_CMD_REG);
 	udelay(lcd_info.min_cmd_delay);
@@ -653,8 +644,10 @@ int lcd_print( char *str )
 	    udelay(lcd_info.min_cmd_delay);
 	}
 =09
=2D	/* re-enable the led tasklet */
=2D	tasklet_enable(&led_tasklet);
+	/* re-queue the work */
+	if (led_wq) {
+		queue_work(led_wq, &led_task);
+	}
=20
 	return lcd_info.lcd_width;
 }
diff -urpN oldtree/include/asm-parisc/led.h newtree/include/asm-parisc/led.h
=2D-- oldtree/include/asm-parisc/led.h	2004-12-30 08:07:48.000000000 +0000
+++ newtree/include/asm-parisc/led.h	2005-03-27 18:30:29.000000000 +0100
@@ -23,9 +23,6 @@
=20
 #define LED_CMD_REG_NONE 0		/* NULL =3D=3D no addr for the cmd register */
=20
=2D/* led tasklet struct */
=2Dextern struct tasklet_struct led_tasklet;
=2D
 /* register_led_driver() */
 int __init register_led_driver(int model, unsigned long cmd_reg, unsigned =
long data_reg);
=20

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On Sun, Mar 27, 2005 at 06:15:20PM +0200, Anders wrote:
> im having trouble with booting the 2.6 kernels on a k460.
> 
> --------------------------------------------------------
> CPU(s): 4 x PA8000 (PCX-U) at 180.000000 MHz
> Setting cache flush threshold to 40 (4 CPUs online)
> Found U2 at 0xfff8a000
> kernel BUG at drivers/parisc/ccio-dma.c:1317!

Grant, Joel, this is your faults:

        ioc->pdir_size = (iova_space_size / IOVP_SIZE) * sizeof(u64);

        BUG_ON(ioc->pdir_size >= 4 * 1024 * 1024);   /* max pdir size < 4MB */

I don't really want to dig into this right now, could one of you
investigate?

Anders, how much memory do you have?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Hi,

I've backported some more patches to 2.6.8 for possible[1] inclusion in
sarge (they fix some possibly important bits).

You can find kernels here:
	http://www.parisc-linux.org/~kyle/debian-kernel/2005-03-27/

I'd appreciate it if everyone could take 10 minutes so we can get good
coverage testing these fixes, to make sure there are no regressions
from the kernels already in sarge. If you could test the sarge kernels
too, that would be fantastic.

Please reply either to the list, or to me personally with the dmesg
output from a boot, and what machine(s) you were able to test on.

Thanks,
	Kyle

[1]: The release team has "effectively" frozen all kernels from propogating
     to sarge. But I think it's worth keeping fixes around, even if they
     don't get included immediately.
-- 
Kyle McMartin


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Hi,

I've backported some more patches to 2.6.8 for possible[1] inclusion in
sarge (they fix some possibly important bits).

You can find kernels here:
	http://www.parisc-linux.org/~kyle/debian-kernel/2005-03-27/

I'd appreciate it if everyone could take 10 minutes so we can get good
coverage testing these fixes, to make sure there are no regressions
from the kernels already in sarge. If you could test the sarge kernels
too, that would be fantastic.

Please reply either to the list, or to me personally with the dmesg
output from a boot, and what machine(s) you were able to test on.

Thanks,
	Kyle

[1]: The release team has "effectively" frozen all kernels from propogating
     to sarge. But I think it's worth keeping fixes around, even if they
     don't get included immediately.
-- 
Kyle McMartin
_______________________________________________
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On Sunday 27 March 2005 21:45, Kyle McMartin wrote:
> Hi,
>
> I've backported some more patches to 2.6.8 for possible[1] inclusion in
> sarge (they fix some possibly important bits).

<snip>

> Please reply either to the list, or to me personally with the dmesg
> output from a boot, and what machine(s) you were able to test on.

Attached is the dmesg output from a J5000, with an EG graphics card.

The only thing I'm a bit curious about are these:

module ipv6 relocation of symbol ipv6_chk_addr is out of range (0x3ffefffd =
in=20
17 bits)
module ipv6 relocation of symbol ipv6_chk_addr is out of range (0x3ffefffd =
in=20
17 bits)

Are these anything to worry about?

Cheers,

David

> Thanks,
>  Kyle

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01000 00002000 00004000 00008000 00010000 00020000 00040000 00080000 001000=
00 00200000 00400000 00800000 01000000 02000000 04000000 08000000 10000000 =
20000000 40000000 80000000 00000001 00000002 00000004 00000008 00000010 000=
00020 00000040
CPU8: offline
 domain 0: span ffffffff
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 00000001 00000002 00000004 00000008 00000010 00000020 00000040 00000080
CPU9: offline
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000 02000000 04000000 08000000 10000000 20000000 40000000 80000000 00000001=
 00000002 00000004 00000008 00000010 00000020 00000040 00000080 00000100
CPU10: offline
 domain 0: span ffffffff
  groups: 00000400 00000800 00001000 00002000 00004000 00008000 00010000 00=
020000 00040000 00080000 00100000 00200000 00400000 00800000 01000000 02000=
000 04000000 08000000 10000000 20000000 40000000 80000000 00000001 00000002=
 00000004 00000008 00000010 00000020 00000040 00000080 00000100 00000200
CPU11: offline
 domain 0: span ffffffff
  groups: 00000800 00001000 00002000 00004000 00008000 00010000 00020000 00=
040000 00080000 00100000 00200000 00400000 00800000 01000000 02000000 04000=
000 08000000 10000000 20000000 40000000 80000000 00000001 00000002 00000004=
 00000008 00000010 00000020 00000040 00000080 00000100 00000200 00000400
CPU12: offline
 domain 0: span ffffffff
  groups: 00001000 00002000 00004000 00008000 00010000 00020000 00040000 00=
080000 00100000 00200000 00400000 00800000 01000000 02000000 04000000 08000=
000 10000000 20000000 40000000 80000000 00000001 00000002 00000004 00000008=
 00000010 00000020 00000040 00000080 00000100 00000200 00000400 00000800
CPU13: offline
 domain 0: span ffffffff
  groups: 00002000 00004000 00008000 00010000 00020000 00040000 00080000 00=
100000 00200000 00400000 00800000 01000000 02000000 04000000 08000000 10000=
000 20000000 40000000 80000000 00000001 00000002 00000004 00000008 00000010=
 00000020 00000040 00000080 00000100 00000200 00000400 00000800 00001000
CPU14: offline
 domain 0: span ffffffff
  groups: 00004000 00008000 00010000 00020000 00040000 00080000 00100000 00=
200000 00400000 00800000 01000000 02000000 04000000 08000000 10000000 20000=
000 40000000 80000000 00000001 00000002 00000004 00000008 00000010 00000020=
 00000040 00000080 00000100 00000200 00000400 00000800 00001000 00002000
CPU15: offline
 domain 0: span ffffffff
  groups: 00008000 00010000 00020000 00040000 00080000 00100000 00200000 00=
400000 00800000 01000000 02000000 04000000 08000000 10000000 20000000 40000=
000 80000000 00000001 00000002 00000004 00000008 00000010 00000020 00000040=
 00000080 00000100 00000200 00000400 00000800 00001000 00002000 00004000
CPU16: offline
 domain 0: span ffffffff
  groups: 00010000 00020000 00040000 00080000 00100000 00200000 00400000 00=
800000 01000000 02000000 04000000 08000000 10000000 20000000 40000000 80000=
000 00000001 00000002 00000004 00000008 00000010 00000020 00000040 00000080=
 00000100 00000200 00000400 00000800 00001000 00002000 00004000 00008000
CPU17: offline
 domain 0: span ffffffff
  groups: 00020000 00040000 00080000 00100000 00200000 00400000 00800000 01=
000000 02000000 04000000 08000000 10000000 20000000 40000000 80000000 00000=
001 00000002 00000004 00000008 00000010 00000020 00000040 00000080 00000100=
 00000200 00000400 00000800 00001000 00002000 00004000 00008000 00010000
CPU18: offline
 domain 0: span ffffffff
  groups: 00040000 00080000 00100000 00200000 00400000 00800000 01000000 02=
000000 04000000 08000000 10000000 20000000 40000000 80000000 00000001 00000=
002 00000004 00000008 00000010 00000020 00000040 00000080 00000100 00000200=
 00000400 00000800 00001000 00002000 00004000 00008000 00010000 00020000
CPU19: offline
 domain 0: span ffffffff
  groups: 00080000 00100000 00200000 00400000 00800000 01000000 02000000 04=
000000 08000000 10000000 20000000 40000000 80000000 00000001 00000002 00000=
004 00000008 00000010 00000020 00000040 00000080 00000100 00000200 00000400=
 00000800 00001000 00002000 00004000 00008000 00010000 00020000 00040000
CPU20: offline
 domain 0: span ffffffff
  groups: 00100000 00200000 00400000 00800000 01000000 02000000 04000000 08=
000000 10000000 20000000 40000000 80000000 00000001 00000002 00000004 00000=
008 00000010 00000020 00000040 00000080 00000100 00000200 00000400 00000800=
 00001000 00002000 00004000 00008000 00010000 00020000 00040000 00080000
CPU21: offline
 domain 0: span ffffffff
  groups: 00200000 00400000 00800000 01000000 02000000 04000000 08000000 10=
000000 20000000 40000000 80000000 00000001 00000002 00000004 00000008 00000=
010 00000020 00000040 00000080 00000100 00000200 00000400 00000800 00001000=
 00002000 00004000 00008000 00010000 00020000 00040000 00080000 00100000
CPU22: offline
 domain 0: span ffffffff
  groups: 00400000 00800000 01000000 02000000 04000000 08000000 10000000 20=
000000 40000000 80000000 00000001 00000002 00000004 00000008 00000010 00000=
020 00000040 00000080 00000100 00000200 00000400 00000800 00001000 00002000=
 00004000 00008000 00010000 00020000 00040000 00080000 00100000 00200000
CPU23: offline
 domain 0: span ffffffff
  groups: 00800000 01000000 02000000 04000000 08000000 10000000 20000000 40=
000000 80000000 00000001 00000002 00000004 00000008 00000010 00000020 00000=
040 00000080 00000100 00000200 00000400 00000800 00001000 00002000 00004000=
 00008000 00010000 00020000 00040000 00080000 00100000 00200000 00400000
CPU24: offline
 domain 0: span ffffffff
  groups: 01000000 02000000 04000000 08000000 10000000 20000000 40000000 80=
000000 00000001 00000002 00000004 00000008 00000010 00000020 00000040 00000=
080 00000100 00000200 00000400 00000800 00001000 00002000 00004000 00008000=
 00010000 00020000 00040000 00080000 00100000 00200000 00400000 00800000
CPU25: offline
 domain 0: span ffffffff
  groups: 02000000 04000000 08000000 10000000 20000000 40000000 80000000 00=
000001 00000002 00000004 00000008 00000010 00000020 00000040 00000080 00000=
100 00000200 00000400 00000800 00001000 00002000 00004000 00008000 00010000=
 00020000 00040000 00080000 00100000 00200000 00400000 00800000 01000000
CPU26: offline
 domain 0: span ffffffff
  groups: 04000000 08000000 10000000 20000000 40000000 80000000 00000001 00=
000002 00000004 00000008 00000010 00000020 00000040 00000080 00000100 00000=
200 00000400 00000800 00001000 00002000 00004000 00008000 00010000 00020000=
 00040000 00080000 00100000 00200000 00400000 00800000 01000000 02000000
CPU27: offline
 domain 0: span ffffffff
  groups: 08000000 10000000 20000000 40000000 80000000 00000001 00000002 00=
000004 00000008 00000010 00000020 00000040 00000080 00000100 00000200 00000=
400 00000800 00001000 00002000 00004000 00008000 00010000 00020000 00040000=
 00080000 00100000 00200000 00400000 00800000 01000000 02000000 04000000
CPU28: offline
 domain 0: span ffffffff
  groups: 10000000 20000000 40000000 80000000 00000001 00000002 00000004 00=
000008 00000010 00000020 00000040 00000080 00000100 00000200 00000400 00000=
800 00001000 00002000 00004000 00008000 00010000 00020000 00040000 00080000=
 00100000 00200000 00400000 00800000 01000000 02000000 04000000 08000000
CPU29: offline
 domain 0: span ffffffff
  groups: 20000000 40000000 80000000 00000001 00000002 00000004 00000008 00=
000010 00000020 00000040 00000080 00000100 00000200 00000400 00000800 00001=
000 00002000 00004000 00008000 00010000 00020000 00040000 00080000 00100000=
 00200000 00400000 00800000 01000000 02000000 04000000 08000000 10000000
CPU30: offline
 domain 0: span ffffffff
  groups: 40000000 80000000 00000001 00000002 00000004 00000008 00000010 00=
000020 00000040 00000080 00000100 00000200 00000400 00000800 00001000 00002=
000 00004000 00008000 00010000 00020000 00040000 00080000 00100000 00200000=
 00400000 00800000 01000000 02000000 04000000 08000000 10000000 20000000
CPU31: offline
 domain 0: span ffffffff
  groups: 80000000 00000001 00000002 00000004 00000008 00000010 00000020 00=
000040 00000080 00000100 00000200 00000400 00000800 00001000 00002000 00004=
000 00008000 00010000 00020000 00040000 00080000 00100000 00200000 00400000=
 00800000 01000000 02000000 04000000 08000000 10000000 20000000 40000000
checking if image is initramfs...it isn't (ungzip failed); looks like an in=
itrd
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
=46ound devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed34000 [10/2] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
7. Forte W 2-way at 0xfffa0000 [32] { 0, 0x0, 0x5bd, 0x00004 }
8. Forte W 2-way at 0xfffa2000 [34] { 0, 0x0, 0x5bd, 0x00004 }
9. Memory at 0xfed10200 [49] { 1, 0x0, 0x088, 0x00009 }
Releasing cpu 1 now, hpa=3Dfffa2000
=46P[1] enabled: Rev 1 Model 16
CPU(s): 2 x PA8500 (PCX-W) at 440.000000 MHz
SBA found Astro 2.1 at 0xfed00000
lba version TR2.1 (0x2) found at 0xfed30000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
PCI: Enabled native mode for NS87415 (pif=3D0x8f)
lba version TR2.1 (0x2) found at 0xfed32000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
iosapic: hpa not registered for 0000:01:06.0
lba version TR2.1 (0x2) found at 0xfed34000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
lba version TR2.1 (0x2) found at 0xfed38000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
lba version TR2.1 (0x2) found at 0xfed3c000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
SCSI subsystem initialized
TC classifier action (bugs to netdev@oss.sgi.com cc hadi@cyberus.ca)
STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f4800000 (64 kB), fb at fa000000 (32 MB)
    id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
    graphics card name: PCI_GRAFFITIX1024
fb0: stifb 1024x768-8 frame buffer device, PCI_GRAFFITIX1024, id: 2d08c0a7,=
 mmio: 0xfa100000
unwind_init: start =3D 0x103b5720, end =3D 0x103d6f30, entries =3D 8577
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Initializing Cryptographic API
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 64)=20
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
Soft power switch enabled, polling @ 0xf0400804.
Console: switching to colour frame buffer device 128x48
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 25 ports, IRQ sharing enabled
ttyS0 at I/O 0x3f8 (irq =3D 99) is a 16550A
ttyS1 at I/O 0x2f8 (irq =3D 100) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
mice: PS/2 mouse device common for all mice
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
NET: Registered protocol family 2
IP: routing cache hash table of 1024 buckets, 24Kbytes
TCP: Hash tables configured (established 32768 bind 52428)
RAMDISK: cramfs filesystem found at block 0
RAMDISK: Loading 5208 blocks [1 disk] into ram disk... |=08/=08-=08\=08|=08=
/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=
=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08=
=2D=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=
=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08=
\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=
=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08=
|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=
=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08=
/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=
=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08=
=2D=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=
=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08=
\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=
=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08=
|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=
=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08=
/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=
=08|=08/=08-=08\=08|=08/=08done.
VFS: Mounted root (cramfs filesystem) readonly.
=46reeing unused kernel memory: Badness in smp_call_function at arch/parisc=
/kernel/smp.c:342
Backtrace:
 [<1011963c>] smp_call_function+0x408/0x410
 [<101088dc>] flush_data_cache+0x24/0x40
 [<10107a38>] free_initmem+0x78/0x38c
 [<10103d30>] init+0x304/0x410
 [<10110c5c>] ret_from_kernel_thread+0x1c/0x24

344k freed
NET: Registered protocol family 1
sym0: <896> rev 0x4 at pci 0000:00:0f.0 irq 65
sym0: No NVRAM, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
sym0: SCSI BUS mode change from SE to SE.
scsi0 : sym-2.1.18k
sym0: SCSI BUS has been reset.
Using anticipatory io scheduler
sym1: <896> rev 0x4 at pci 0000:00:0f.1 irq 65
sym1: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.1.18k
  Vendor: SEAGATE   Model: ST39102LC         Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym1:3:0: tagged command queuing enabled, command queue depth 16.
scsi(1:0:3:0): Beginning Domain Validation
sym1:3: wide asynchronous.
sym1:3: FAST-40 WIDE SCSI 80.0 MB/s ST (25.0 ns, offset 15)
scsi(1:0:3:0): Domain Validation skipping write tests
scsi(1:0:3:0): Ending Domain Validation
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sda: drive cache: write back
 /dev/scsi/host1/bus0/target3/lun0: p1 p2 p3 < p5 p6 >
Attached scsi disk sda at scsi1, channel 0, id 3, lun 0
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
Adding 359400k swap on /dev/sda6.  Priority:-1 extents:1
EXT3 FS on sda5, internal journal
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=3D=
xx
Linux Tulip driver version 1.1.13 (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 65 at 0xf4008000, 00:10:83:7B:E2:5B, IRQ 66.
8139too Fast Ethernet driver 0.9.27
eth1: RealTek RTL8139 at 0xf6000000, 00:c0:df:0c:2a:12, IRQ 128
eth1:  Identified 8139 chip type 'RTL-8139C'
usbcore: registered new driver hub
ohci_hcd: 2004 Feb 02 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci_hcd: block sizes: ed 64 td 64
ohci_hcd 0000:00:0e.2: National Semiconductor Corporation USB Controller
ohci_hcd 0000:00:0e.2: irq 97, pci mem f4007000
ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:0e.2: Using NSC SuperIO setup
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
usb 1-1: new full speed USB device using address 2
hub 1-1:1.0: USB hub found
hub 1-1:1.0: 3 ports detected
usb 1-1.1: new full speed USB device using address 3
usbcore: registered new driver hiddev
input: USB HID v1.00 Keyboard [Chicony  PFU-65 USB Keyboard] on usb-0000:00=
:0e.2-1.1
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
8139cp: 10/100 PCI Ethernet driver v1.2 (Mar 22, 2004)
USB Universal Host Controller Interface driver v2.2
NET: Registered protocol family 17
eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.
eth1: link down
parport_pc: Unknown symbol dma_spin_lock
lp: driver loaded but no devices found
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
module ipv6 relocation of symbol ipv6_chk_addr is out of range (0x3ffefffd =
in 17 bits)
module ipv6 relocation of symbol ipv6_chk_addr is out of range (0x3ffefffd =
in 17 bits)

--Boundary-01=_f7yRCg00yAOqkZo--

--nextPart2711293.7WC6fXtIWC
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--===============0650743443==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
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On Sun, Mar 27, 2005 at 05:55:53PM +0000, David Pye wrote:
> Could I ask you to have a glance at this patch? It's based on your previous 
> one, and only has a very minor change to the way count_HZ is incremented - ie 
> increment by the actual jiffies past, not the number we asked to be 
> rescheduled in.

Funny you point that out. I was thinking about it yesterday before I posted
the patch but was "too lazy" to figure out how to do it.

(TBH, I had several other things going on).

> On my system, the heart now beats regularly under IO/LAN traffic!

Cool!

> -	/* increment the local counters */
> -	++count;
> -	if (++count_HZ == HZ)
> +	/* increment the local counter */
> +	count_HZ += jiffies - last_jiffies;
> +	if (count_HZ >= HZ)
>  	    count_HZ = 0;
> -
> -	currentleds = lastleds;
> +	last_jiffies = jiffies;

Yeah, I'll add this bit, try it out and commit.

thanks,
grant
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On Sun, Mar 27, 2005 at 09:38:38AM +0000, David Pye wrote:
> > I think I would be ok with it implemented inside the led_get*
> > activity routines. They have access to lastleds and jiffies and
> > that should be enough to figure out how long an LED should stay
> > on if it's already on.  The main routine can stay simple/readable.
> 
> Yep, I hadn't really thought of doing it in there - I'll have a play with it 
> and maybe annoy everyone with another patch in a bit.   Downside is that it's 
> not really the right place to put it *if* you want it to be lcd-only.

I don't really care if it's LCD only.
LCD clearly has different response times than LED.

> The only other way to do it which you might not find as ugly is to move this 
> into the drivers.  ie the drivers would need to be given the responsibility 
> of deciding whether they need to update anything (ie each of them has to 
> store currentleds rather than the generic calculator function). That way, 
> they'll get called each time the work runs, but can decide for themselves 
> whether to actually do anything.  It's only a couple of lines to add to the 
> other functions e.g. lasi.   How does that sound?

Yeah - having the LCD_driver regulate minimum on probably makes just as
much sense since LED really doesn't need it.

Implementing it in led_get* routines was just my first thought.
led_get* controls state of the LEDs and could avoid extra calculations
if it knows about minimum-on time. 
Maybe minimum-on time should be a parameter that's different for LED/LCD
if a hardcoded value isn't acceptable for both.

thanks,
grant
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On Sun, Mar 27, 2005 at 12:36:32PM -0600, Erik T.Crouch wrote:
> Actually figured it out, you can dd it to a virtual disc, then make it 
> a bin image which you can translate into an ISO
> 
> It worked great that way, but a little annoying because you have to 
> work with dd to get it going.

cool. If you write up a nice recipe, I'll add it to our collection
of HOW-TO's and a reference from the FAQ.


> Anyway, I have 6.2 firmware on the beast now, but Debian still wont 
> boot, HPMC Code=1 is what I get.  I'm assuming it means I'll have to 
> serial console but I was  hoping to avoid that.
> 
> Any ideas on that?

No. I need console output. Disconnect the keyboard and capture output
from serial port 1. Post the output to the parisc-linux mailing list.

thanks,
grant
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On Sun, Mar 27, 2005 at 01:49:06PM +0000, Joel Soete wrote:
...
> # time rsync -a /Debian-apt/SRC/linux-2.6.12-rc1-pa4-050327 /Sources/CVS-tst
> 
> real    3m34.512s
> user    1m0.730s
> sys     1m6.440s

Joel,
thanks for the data!

But I don't know what it means.
Was the performance bad for that box before?

> I prefer simply tar and so:
> # cd /Debian-apt/SRC
> # time tar -cslpf /chroot/Develop/linux-2.6.12-rc1-pa4.tar2 
> linux-2.6.12-rc1-pa4-050327
> 
> real    0m38.487s
> user    0m3.690s
> sys     0m18.650s
> 
> a sample iostat too :-)
> avg-cpu:  %user   %nice    %sys %iowait   %idle
>           15.70    0.00   47.00   37.30    0.00
> 
> Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
> sda               2.50         0.00        19.60          0        196
> sdb             297.30      5906.40        89.20      59064        892
> sdc              15.10         0.00      7712.80          0      77128
...

That looks fine.

> still have to test on a quicker system as the b2k if that could solve the 
> bug I reproduce on 32bit kernel
> (cf patch log message:"... I suspect the real problem is ffz() wants
> 	an unsigned long and was getting garbage in the top half of the
> 	unsigned int. Not confirmed but that's what I suspect.)

I probably should have posted that speculation to the mailing list
instead of in the commit log...I was quite tired at that point.

That could only be true if ext3 perf issue only shows up in 64-bit kernels.
I don't recall if anyone posted perf results for 32-bit kernels.

thanks,
grant
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] k-class drivers/parisc/ccio-dma.c
Date: Mon, 28 Mar 2005 00:05:27 -0700
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To: Anders <dizzey@ing.umu.se>
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On Sun, Mar 27, 2005 at 06:15:20PM +0200, Anders wrote:
> im having trouble with booting the 2.6 kernels on a k460.
> 
> --------------------------------------------------------
> CPU(s): 4 x PA8000 (PCX-U) at 180.000000 MHz
> Setting cache flush threshold to 40 (4 CPUs online)
> Found U2 at 0xfff8a000
> kernel BUG at drivers/parisc/ccio-dma.c:1317!

Can you try this change to line 1317?

-       BUG_ON(ioc->pdir_size >= 4 * 1024 * 1024);   /* max pdir size < 4MB */
+       BUG_ON(ioc->pdir_size > (8 * 1024 * 1024));   /* max pdir size <= 8MB */


Sorry - I didn't redo the math in the previous commit.
More than 2GB of RAM should hit that maximum IOVA/DMA space size
and result in an 8MB IO Pdir.

thanks,
grant
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From: Anders <dizzey@ing.umu.se>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] k-class drivers/parisc/ccio-dma.c
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On Mon, Mar 28, 2005 at 12:05:27AM -0700, Grant Grundler wrote:
> On Sun, Mar 27, 2005 at 06:15:20PM +0200, Anders wrote:
> > im having trouble with booting the 2.6 kernels on a k460.
> > 
> > --------------------------------------------------------
> > CPU(s): 4 x PA8000 (PCX-U) at 180.000000 MHz
> > Setting cache flush threshold to 40 (4 CPUs online)
> > Found U2 at 0xfff8a000
> > kernel BUG at drivers/parisc/ccio-dma.c:1317!
> 
> Can you try this change to line 1317?
> 
> -       BUG_ON(ioc->pdir_size >= 4 * 1024 * 1024);   /* max pdir size < 4MB */
> +       BUG_ON(ioc->pdir_size > (8 * 1024 * 1024));   /* max pdir size <= 8MB */
> 
> 
> Sorry - I didn't redo the math in the previous commit.
> More than 2GB of RAM should hit that maximum IOVA/DMA space size
> and result in an 8MB IO Pdir.
> 
> thanks,
> grant
thanks 
that line you gave solved that problem :)

well im of to write a new report about smp-badness
 
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From: Anders <dizzey@ing.umu.se>
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Subject: [parisc-linux] k-class smp_call_function at
	arch/parisc/kernel/smp.c:340
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well i got help with the ccio-dma problem.
but now i get smp badness.

kernel 2.6.12-rc1-pa4 with a little ccio fix 
gcc version 3.3.5

bootlog can be found at 
www.ing.umu.se/~dizzey/k460_bootlog


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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] k-class smp_call_function
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Anders wrote:
> well i got help with the ccio-dma problem.
> but now i get smp badness.
> 
mostly harmless (see among other reports: <http://lists.parisc-linux.org/pipermail/parisc-linux/2004-August/024291.html>

> kernel 2.6.12-rc1-pa4 with a little ccio fix 
Cool

> gcc version 3.3.5
> 
> bootlog can be found at 
> www.ing.umu.se/~dizzey/k460_bootlog
> 
Do I well understand: the system hung after last messages:
...
FLT  5208



FLT"

?

(sorry never seen this before?)

btw could you have a try with a up kernel?

Thanks,
	Joel

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Subject: Re: [parisc-linux] ext3 perf patch#4
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Grant Grundler wrote:
> On Sun, Mar 27, 2005 at 01:49:06PM +0000, Joel Soete wrote:
> ...
> 
>># time rsync -a /Debian-apt/SRC/linux-2.6.12-rc1-pa4-050327 /Sources/CVS-tst
>>
>>real    3m34.512s
>>user    1m0.730s
>>sys     1m6.440s
> 
> 
> Joel,
> thanks for the data!
> 
> But I don't know what it means.
> Was the performance bad for that box before?
> 
:-)
No just looks like as before:
# uname -a
Linux hpalin 2.6.12-rc1-pa1-c110 #2 Sat Mar 19 23:36:05 CET 2005 parisc GNU/Linux
# time rsync -a /Debian-apt/SRC/linux-2.6.12-rc1-pa4-050327 /Sources/CVS-tst

real    3m44.365s
user    1m0.350s
sys     1m11.120s


> 
>>I prefer simply tar and so:
>># cd /Debian-apt/SRC
>># time tar -cslpf /chroot/Develop/linux-2.6.12-rc1-pa4.tar2 
>>linux-2.6.12-rc1-pa4-050327
>>
>>real    0m38.487s
>>user    0m3.690s
>>sys     0m18.650s
>>
>>a sample iostat too :-)
>>avg-cpu:  %user   %nice    %sys %iowait   %idle
>>          15.70    0.00   47.00   37.30    0.00
>>
>>Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
>>sda               2.50         0.00        19.60          0        196
>>sdb             297.30      5906.40        89.20      59064        892
>>sdc              15.10         0.00      7712.80          0      77128
> 
> ...
> 
> That looks fine.
> 
Yes, sorry for confusion (I would just show that it works and nothing was broken)

...
> 
> I probably should have posted that speculation to the mailing list
> instead of in the commit log...I was quite tired at that point.
> 
Don't wory I would have to be disturbe or confused by the song of a bird in the garden ?-)
(the 32bit bug has obviously nothing to do with that)

> That could only be true if ext3 perf issue only shows up in 64-bit kernels.
> I don't recall if anyone posted perf results for 32-bit kernels.
> 
TBH, the 2 64bit system I have the oportunity to test (b2k up, n4k smp) are so confortable (well n4k ask many time for self test on 
reboot) from speed point of view that I never noticed ext[23] lack of perf ;-)

Thanks,
	Joel
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On Mon, Mar 28, 2005 at 01:04:27PM +0000, Joel Soete wrote:
> 
> 
> Anders wrote:
> >well i got help with the ccio-dma problem.
> >but now i get smp badness.
> >
> mostly harmless (see among other reports: 
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2004-August/024291.html>
> 
> >kernel 2.6.12-rc1-pa4 with a little ccio fix 
> Cool
> 
> >gcc version 3.3.5
> >
> >bootlog can be found at 
> >www.ing.umu.se/~dizzey/k460_bootlog
> >
> Do I well understand: the system hung after last messages:
> ...
> FLT  5208
> 
> 
> 
> FLT"
> 
> ?
> 
> (sorry never seen this before?)
> 
> btw could you have a try with a up kernel?
> 
> Thanks,
> 	Joel
> 
Well yes the system hung after those messages the FLT parts are from the 
firmware during the reboot, so i only included them to show it was 
rebooting.  i will be back with a test from a up kernel soon.
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Hello Kyle,

I test it on a up 32bit c110 model, ...

Kyle McMartin wrote:
> Hi,
> 
> I've backported some more patches to 2.6.8 for possible[1] inclusion in
> sarge (they fix some possibly important bits).
> 
> You can find kernels here:
> 	http://www.parisc-linux.org/~kyle/debian-kernel/2005-03-27/
> 
so i consider kernel-image-2.6.8-2-32_2.6.8-7_hppa.deb, ok?

I tried for the first time to boot an initrd.img but unfortunaltely it failed to complete the boot (boot log):
Current command line:
3/vmlinux-2.6.8-2-32 root=/dev/md2 initrd=3/initrd.img HOME=/ panic=120 profile2 0: 3/vmlinux-2.6.8-2-32
  1: root=/dev/md2
  2: initrd=3/initrd.img
  3: HOME=/
  4: panic=120
  5: profile=2
  6: console=ttyS0
  7: TERM=vt102

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? b

Command line for kernel: 'root=/dev/md2 HOME=/ panic=120 profile=2 console=ttyS'Selected kernel: /vmlinux-2.6.8-2-32 from partition 3
Selected ramdisk: /initrd.img from partition 3
ELF32 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 2242736 mediaptr 0x1000
Segment 1 load 00324000 size 1056902 mediaptr 0x225000
Loading ramdisk 4714496 bytes @ 1fb6d000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.8-2-32 (kyle@caradhras) (gcc version 3.3.5 (Debian 1:3.3.5-125FP[0] enabled: Rev 1 Model 11
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0avers  0000000d
CPUID vers 11 rev 13 (0x0000016d)
model 9000/777/C110
Total Memory: 512 Mb
initrd: 2fb6d000-2ffec000
initrd: reserving 1fb6d000-1ffec000 (mem_max 20000000)
LED display at f0190001 registered
Built 1 zonelists
Kernel command line: root=/dev/md2 HOME=/ panic=120 profile=2 console=ttyS0 TER2kernel profiling enabled
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 524288k available
Calibrating delay loop... 119.60 BogoMIPS
Security Scaffold v1.0.0 initialized
Capability LSM initialized
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
checking if image is initramfs...it isn't (ungzip failed); looks like an initrd
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0x7, 0x580, 0x0000b }
2. SkyHawk 100/120 FW-SCSI at 0xf3f8c000 [8/12] { 4, 0x0, 0x01f, 0x00089 }
3. Raven T' Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x032, 0x00081 },  addition
4. Raven T' Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x032, 0x00074 },
5. Raven T' Audio at 0xffd04000 [8/16/1] { 10, 0x0, 0x032, 0x0007b }
6. Raven T' Lasi Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x032, 0x0008c }
7. Raven T' Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x032, 0x00082 }
8. Raven T' Core LAN (802.3) at 0xffd07000 [8/16/6] { 10, 0x0, 0x032, 0x0008a }
9. Raven T' Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x032, 0x00084 }
10. Raven T' Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x032, 0x00084 }
11. Raven T' Core PC Floppy at 0xffd0a000 [8/16/10] { 10, 0x0, 0x032, 0x00083 }
12. Raven T' Wax BA at 0xffe00000 [8/20] { 11, 0x0, 0x01e, 0x0008e },  addition
13. Raven T' Wax HIL at 0xffe01000 [8/20/1] { 10, 0x0, 0x01e, 0x00073 }
14. Raven T' Wax RS-232 at 0xffe02000 [8/20/2] { 10, 0x0, 0x01e, 0x0008c }
15. Raven T' Wax EISA BA at 0xfc000000 [8/20/5] { 11, 0x0, 0x01e, 0x00090 },  a
16. U2-IOA BC GSC+ Port at 0xf3fbf000 [8/63] { 7, 0x1, 0x501, 0x0000c },  addit
17. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0x7, 0x580, 0x0000b }
18. Raven T' GSC Core Graphics at 0xf4000000 [10/16] { 10, 0x0, 0x032, 0x00085
19. U2-IOA BC GSC+ Port at 0xf3fff000 [10/63] { 7, 0x1, 0x501, 0x0000c }
20. Raven 120 T' at 0xfffa0000 [32] { 0, 0x0, 0x58e, 0x00004 }
21. Memory at 0xfffb1000 [49] { 1, 0x0, 0x049, 0x00009 }
CPU(s): 1 x PA7200 (PCX-T') at 120.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
Wax at 0xffe00000 found.
Wax EISA Adapter found at 0xfc000000
EISA EEPROM: cannot register misc device.
Enumerating EISA bus
EISA: Probing bus 0 at parisc8:20:5
EISA: Mainboard HWPC0E1 detected.
EISA: Detected 0 cards.
SCSI subsystem initialized
TC classifier action (bugs to netdev@oss.sgi.com cc hadi@cyberus.ca)
STI GSC/PCI core graphics driver Version 0.9a
     id 2b4ded6d-40a00499, conforms to spec rev. 8.04
     graphics card name: HPA208LC1024
fb0: stifb 1024x768-8 frame buffer device, HPA208LC1024, id: 2b4ded6d, mmio: 0x0unwind_init: start = 0x10325720, end = 0x103468b0, 
entries = 8473
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Initializing Cryptographic API
Soft power switch enabled, polling @ 0xf0140000.
Console: switching to colour frame buffer device 128x48
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 25 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
mice: PS/2 mouse device common for all mice
serio: GSC PS2 keyboard port at 0xffd08000 irq 69 @ parisc8:16:7
serio: GSC PS2 mouse port at 0xffd08100 irq 69 @ parisc8:16:8
HP SDC: HP SDC at 0xffe01000, IRQ 126 (NMI IRQ 125)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
NET: Registered protocol family 2
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 131072 bind 65536)
RAMDISK: cramfs filesystem found at block 0
RAMDISK: Loading 4604 blocks [1 disk] into ram disk... <4>HP SDC: Transaction a?HP SDC: Transaction add failed: transaction already 
queued?
HP SDC: read timeout (791509us)!
done.
VFS: Mounted root (cramfs filesystem) readonly.
Freeing unused kernel memory: 316k freed
initrd-tools: 0.1.77
NET: Registered protocol family 1
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: raid1 personality registered as nr 3
md: md1 stopped.
mdadm: cannot open device /dev/scsi/sdh0-f3f8c800c0i5l0p2: No such device or adsmdadm: /dev/scsi/sdh0-f3f8c800c0i5l0p2 has wrong uuid.
mdadm: cannot open device /dev/smd: md2 stopped.
csi/sdh0-f3f8c800c0i6l0p2: No such device or address
mdadm: /dev/scsi/sdh0-f3f8c800c0i6l0p2 has wrong uuid.
mdadm: no devices found for /devfs/md/1
mdadm: cannot open device /dev/scsi/sdh0-f3f8c800c0i5l0p5: No such device or adsmdadm: /dev/scsi/sdh0-f3f8c800c0i5l0p5 has wrong uuid.
mdadm: cannot open device /dev/scsi/sdh0-f3f8c800c0i6l0p5: No such device or adsmdadm: /dev/scsi/sdh0-f3f8c800c0i6l0p5 has wrong uuid.
mdadm: no devices found for /devfs/md/2
EXT3-fs: unable to read superblock
EXT2-fs: unable to read superblock
isofs_fill_super: bread failed, dev=md2, iso_blknum=16, block=32
pivot_root: No sKernel panic: Attempted to kill init!
uch file or dire ctory
/sbin/ini<0>Rebooting in 120 seconds..t: 431: cannot open dev/console: No such e

And not better if I try the kernel:
3/vmlinux root=/dev/md2 HOME=/ panic=120 profile=2 console=ttyS0 TERM=vt102
  0: 3/vmlinux
  1: root=/dev/md2
  2: HOME=/
  3: panic=120
  4: profile=2
  5: console=ttyS0
  6: TERM=vt102

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? b

Command line for kernel: 'root=/dev/md2 HOME=/ panic=120 profile=2 console=ttyS'Selected kernel: /vmlinux from partition 3
ELF32 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 2242736 mediaptr 0x1000
Segment 1 load 00324000 size 1056902 mediaptr 0x225000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.8-2-32 (kyle@caradhras) (gcc version 3.3.5 (Debian 1:3.3.5-125FP[0] enabled: Rev 1 Model 11
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0avers  0000000d
CPUID vers 11 rev 13 (0x0000016d)
model 9000/777/C110
Total Memory: 512 Mb
LED display at f0190001 registered
Built 1 zonelists
Kernel command line: root=/dev/md2 HOME=/ panic=120 profile=2 console=ttyS0 TERxkernel profiling enabled
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 524288k available
Calibrating delay loop... 119.60 BogoMIPS
Security Scaffold v1.0.0 initialized
Capability LSM initialized
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0x7, 0x580, 0x0000b }
2. SkyHawk 100/120 FW-SCSI at 0xf3f8c000 [8/12] { 4, 0x0, 0x01f, 0x00089 }
3. Raven T' Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x032, 0x00081 },  addition
4. Raven T' Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x032, 0x00074 },
5. Raven T' Audio at 0xffd04000 [8/16/1] { 10, 0x0, 0x032, 0x0007b }
6. Raven T' Lasi Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x032, 0x0008c }
7. Raven T' Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x032, 0x00082 }
8. Raven T' Core LAN (802.3) at 0xffd07000 [8/16/6] { 10, 0x0, 0x032, 0x0008a }
9. Raven T' Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x032, 0x00084 }
10. Raven T' Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x032, 0x00084 }
11. Raven T' Core PC Floppy at 0xffd0a000 [8/16/10] { 10, 0x0, 0x032, 0x00083 }
12. Raven T' Wax BA at 0xffe00000 [8/20] { 11, 0x0, 0x01e, 0x0008e },  addition
13. Raven T' Wax HIL at 0xffe01000 [8/20/1] { 10, 0x0, 0x01e, 0x00073 }
14. Raven T' Wax RS-232 at 0xffe02000 [8/20/2] { 10, 0x0, 0x01e, 0x0008c }
15. Raven T' Wax EISA BA at 0xfc000000 [8/20/5] { 11, 0x0, 0x01e, 0x00090 },  a
16. U2-IOA BC GSC+ Port at 0xf3fbf000 [8/63] { 7, 0x1, 0x501, 0x0000c },  addit
17. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0x7, 0x580, 0x0000b }
18. Raven T' GSC Core Graphics at 0xf4000000 [10/16] { 10, 0x0, 0x032, 0x00085
19. U2-IOA BC GSC+ Port at 0xf3fff000 [10/63] { 7, 0x1, 0x501, 0x0000c }
20. Raven 120 T' at 0xfffa0000 [32] { 0, 0x0, 0x58e, 0x00004 }
21. Memory at 0xfffb1000 [49] { 1, 0x0, 0x049, 0x00009 }
CPU(s): 1 x PA7200 (PCX-T') at 120.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
Wax at 0xffe00000 found.
Wax EISA Adapter found at 0xfc000000
EISA EEPROM: cannot register misc device.
Enumerating EISA bus
EISA: Probing bus 0 at parisc8:20:5
EISA: Mainboard HWPC0E1 detected.
EISA: Detected 0 cards.
SCSI subsystem initialized
TC classifier action (bugs to netdev@oss.sgi.com cc hadi@cyberus.ca)
STI GSC/PCI core graphics driver Version 0.9a
     id 2b4ded6d-40a00499, conforms to spec rev. 8.04
     graphics card name: HPA208LC1024
fb0: stifb 1024x768-8 frame buffer device, HPA208LC1024, id: 2b4ded6d, mmio: 0x0unwind_init: start = 0x10325720, end = 0x103468b0, 
entries = 8473
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Initializing Cryptographic API
Soft power switch enabled, polling @ 0xf0140000.
Console: switching to colour frame buffer device 128x48
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 25 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
mice: PS/2 mouse device common for all mice
serio: GSC PS2 keyboard port at 0xffd08000 irq 69 @ parisc8:16:7
serio: GSC PS2 mouse port at 0xffd08100 irq 69 @ parisc8:16:8
HP SDC: HP SDC at 0xffe01000, IRQ 126 (NMI IRQ 125)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
NET: Registered protocol family 2
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
...
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
IP: routing cache hash table of 4096 buckets, 32Kbytes
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: Transaction add failed: transaction already queued?
HP SDC: read timeout (791519us)!
TCP: Hash tables configured (established 131072 bind 65536)
Root-NFS: No NFS server available, giving up.
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "md2" or unknown-block(2,0)
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on unknown-block(2,0)

fwiw i never read disk init as in my custom kernel does:
...
eth0: 82596 at 0xffd07000, 00 60 B0 07 1E EA IRQ 18.
zalon_probe: Zalon version 1, IRQ 66
ncr53c720-0: rev 0xf irq 66
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3g
  target0:0:5: target did not report SYNC.
   Vendor: SEAGATE   Model: ST34371W          Rev: HP03
   Type:   Direct-Access                      ANSI SCSI revision: 02
  target0:0:5: Beginning Domain Validation
  target0:0:5: asynchronous.
  target0:0:5: wide asynchronous.
  target0:0:5: Domain Validation skipping write tests
  target0:0:5: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
  target0:0:5: Ending Domain Validation
  target0:0:6: target did not report SYNC.
   Vendor: SEAGATE   Model: ST34371W          Rev: HP03
   Type:   Direct-Access                      ANSI SCSI revision: 02
  target0:0:6: Beginning Domain Validation
  target0:0:6: asynchronous.
  target0:0:6: wide asynchronous.
  target0:0:6: Domain Validation skipping write tests
  target0:0:6: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
  target0:0:6: Ending Domain Validation
...

well my custom config is CONFIG_SCSI_ZALON=y while your CONFIG_SCSI_ZALON=m so should be loaded?

Any idea?

Thanks,
	Joel


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Subject: Re: [parisc-linux] k-class
	smp_call_function	at	arch/parisc/kernel/smp.c:340
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Anders wrote:
> On Mon, Mar 28, 2005 at 01:04:27PM +0000, Joel Soete wrote:
> 
>>
...
> 
> Well yes the system hung after those messages the FLT parts are from the 
> firmware during the reboot, so i only included them to show it was 
> rebooting.  i will be back with a test from a up kernel soon.

mmm another question: are you using a initrd.img?
fwiw I encounter the same message as you reported:
...
SCSI subsystem initialized
unwind_init: start = 0x103bad60, end = 0x103ddd50, entries = 8959
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
...
while testing latest kyle debian-kernel? (tbh, I don't remember to have encountered it before?)

Can you check if in your kernel config CONFIG_SCSI_ZALON=y
and btw remove devfs support?

Thanks,
	Joel

PS: iirc Willy also boot a k model may be ask him his config file (I don't remember if he custumized or used the default one?)
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Subject: Re: [parisc-linux] k-class smp_call_function
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On Mon, Mar 28, 2005 at 01:04:27PM +0000, Joel Soete wrote:
> 
> 
> Anders wrote:
> >well i got help with the ccio-dma problem.
> >but now i get smp badness.
> >
> mostly harmless (see among other reports: 
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2004-August/024291.html>
> 
> >kernel 2.6.12-rc1-pa4 with a little ccio fix 
> Cool
> 
> >gcc version 3.3.5
> >
> >bootlog can be found at 
> >www.ing.umu.se/~dizzey/k460_bootlog
> >
> Do I well understand: the system hung after last messages:
> ...
> FLT  5208
> 
> 
> 
> FLT"
> 
> ?
> 
> (sorry never seen this before?)
> 
> btw could you have a try with a up kernel?
> 
> Thanks,
> 	Joel
> 

yes you where correct it isnt a smp problem.
new bootlog at
www.ing.umu.se/~dizzey/k460up-bootlog
nothing new there really.

i will also post my .config
www.ing.umu.se/~dizzey/config

o yeah if anyone suggest a patch to try, please tell me if i should use 
-p0 or -p1 i never quite manged to understand the diffrence, if its only 
i few line i dont care becus then i can edit by hand.
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On Mon, Mar 28, 2005 at 03:03:11PM +0000, Joel Soete wrote:
> 
> 
> Anders wrote:
> >On Mon, Mar 28, 2005 at 01:04:27PM +0000, Joel Soete wrote:
> >
> >>
> ...
> >
> >Well yes the system hung after those messages the FLT parts are from the 
> >firmware during the reboot, so i only included them to show it was 
> >rebooting.  i will be back with a test from a up kernel soon.
> 
> mmm another question: are you using a initrd.img?
> fwiw I encounter the same message as you reported:
well i dont use initrd.
> ...
> SCSI subsystem initialized
> unwind_init: start = 0x103bad60, end = 0x103ddd50, entries = 8959
> devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
> devfs: boot_options: 0x1
> ...
> while testing latest kyle debian-kernel? (tbh, I don't remember to have 
> encountered it before?)
> 
> Can you check if in your kernel config CONFIG_SCSI_ZALON=y
i do have config CONFIG_SCSI_ZALON=y
> and btw remove devfs support?
i will remove devfs and be back
> 
> Thanks,
> 	Joel
> 
> PS: iirc Willy also boot a k model may be ask him his config file (I don't 
> remember if he custumized or used the default one?)
willy if you read this pleas send your config file to me.
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On Mon, Mar 28, 2005 at 02:42:42PM +0000, Joel Soete wrote:
> mdadm: cannot open device /dev/scsi/sdh0-f3f8c800c0i5l0p2: No such device 
> or adsmdadm: /dev/scsi/sdh0-f3f8c800c0i5l0p2 has wrong uuid.
> mdadm: cannot open device /dev/smd: md2 stopped.
> csi/sdh0-f3f8c800c0i6l0p2: No such device or address
> mdadm: /dev/scsi/sdh0-f3f8c800c0i6l0p2 has wrong uuid.
> mdadm: no devices found for /devfs/md/1
> mdadm: cannot open device /dev/scsi/sdh0-f3f8c800c0i5l0p5: No such device 
> or adsmdadm: /dev/scsi/sdh0-f3f8c800c0i5l0p5 has wrong uuid.
> mdadm: cannot open device /dev/scsi/sdh0-f3f8c800c0i6l0p5: No such device 
> or adsmdadm: /dev/scsi/sdh0-f3f8c800c0i6l0p5 has wrong uuid.
> mdadm: no devices found for /devfs/md/2
> EXT3-fs: unable to read superblock
> EXT2-fs: unable to read superblock
> isofs_fill_super: bread failed, dev=md2, iso_blknum=16, block=32
> pivot_root: No sKernel panic: Attempted to kill init!
> uch file or dire ctory
> /sbin/ini<0>Rebooting in 120 seconds..t: 431: cannot open dev/console: No 
> such e
>

That's very strange, I'll look into it. It might be caused by the zalon
module not being loaded. See below.
 
> TCP: Hash tables configured (established 131072 bind 65536)
> Root-NFS: No NFS server available, giving up.
> VFS: Unable to mount root fs via NFS, trying floppy.
> VFS: Cannot open root device "md2" or unknown-block(2,0)
> Please append a correct "root=" boot option
> Kernel panic: VFS: Unable to mount root fs on unknown-block(2,0)
> 
> well my custom config is CONFIG_SCSI_ZALON=y while your CONFIG_SCSI_ZALON=m 
> so should be loaded?
> 

Mmm. Yeah, you need the initrd, as that will contain the zalon module.

Could you add "zalon7xx" to /etc/mkinitrd/modules and regenerate the
initrd either by reinstalling the kernel image or with a command like

	# mkinitrd -o /boot/initrd.img-2.6.8-2-32 2.6.8-2-32

This may not be the exact line you need, I'm sorry I don't have time
to look what it precisely is.

Thanks for testing!

Cheers,
-- 
Kyle McMartin


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Kyle McMartin wrote:
> On Mon, Mar 28, 2005 at 02:42:42PM +0000, Joel Soete wrote:
> 
...
> 
> 
> That's very strange, I'll look into it. It might be caused by the zalon
> module not being loaded. See below.
>  
> 
>>TCP: Hash tables configured (established 131072 bind 65536)
>>Root-NFS: No NFS server available, giving up.
>>VFS: Unable to mount root fs via NFS, trying floppy.
>>VFS: Cannot open root device "md2" or unknown-block(2,0)
>>Please append a correct "root=" boot option
>>Kernel panic: VFS: Unable to mount root fs on unknown-block(2,0)
>>
>>well my custom config is CONFIG_SCSI_ZALON=y while your CONFIG_SCSI_ZALON=m 
>>so should be loaded?
>>
> 
> 
> Mmm. Yeah, you need the initrd, as that will contain the zalon module.
> 
> Could you add "zalon7xx" to /etc/mkinitrd/modules and regenerate the
> initrd either by reinstalling the kernel image or with a command like
> 
> 	# mkinitrd -o /boot/initrd.img-2.6.8-2-32 2.6.8-2-32
> 
That nake the trick ;-) :


          _sudZUZ#Z#XZo=_         DDDD   EEEEEE BBBB   IIIIII  AAAA   NN   NN
       _jmZZ2!!~---~!!X##wa       DD DD  EE     BB BB    II   AA  AA  NNN  NN
    .<wdP~~            -!YZL,     DD  DD EEEEE  BBBBB    II   AAAAAA  NNNN NN
   .mX2'       _%aaa__     XZ[.   DD DD  EE     BB  BB   II   AA  AA  NN NNNN
   oZ[      _jdXY!~?S#wa   ]Xb;   DDDD   EEEEEE BBBBB  IIIIII AA  AA  NN   NN
  _#e'     .]X2(     ~Xw|  )XXc
.2Z`      ]X[.       xY|  ]oZ(   Linux Version 2.6.8-2-32
.2#;      )3k;     _s!~   jXf`   Compiled #1 Sun Mar 27 06:04:08 EST 2005
  1Z>      -]Xb/    ~    __#2(    One 120MHz PA-RISC Raven 120 T' Processor, 512M
  -Zo;       +!4ZwaaaauZZXY'      119.60 Bogomips Total
   *#[,        ~-?!!!!!!-~        hpalin
    XUb;.
     )YXL,,
       +3#bc,
         -)SSL,,
            ~~~~~
Updating the linuxlogo... linuxlogo.

Debian GNU/Linux 3.1 hpalin ttyS0

hpalin login: root
Password:
Last login: Mon Mar 28 18:30:13 2005 on ttyS0
Linux hpalin 2.6.8-2-32 #1 Sun Mar 27 06:04:08 EST 2005 parisc GNU/Linux

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
No mail.
root@hpalin:~# uname -a
Linux hpalin 2.6.8-2-32 #1 Sun Mar 27 06:04:08 EST 2005 parisc GNU/Linux

Cool :-)

just still have a small trouble with (builtin) nic:
...
Configuring network interfaces...SIOCSIFADDR: No such device
eth0: ERROR while getting interface flags: No such device
SIOCSIFNETMASK: No such device
SIOCSIFBRDADDR: No such device
eth0: ERROR while getting interface flags: No such device
eth0: ERROR while getting interface flags: No such device
Failed to bring up eth0.
done.
...

but no more time today :-(

> This may not be the exact line you need, I'm sorry I don't have time
> to look what it precisely is.
> 
np this was the right one :-)

> Thanks for testing!
> 
Welcome,
	Joel
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Cc: Kyle McMartin <kyle@mcmartin.ca>,
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On Mon, Mar 28, 2005 at 05:21:36PM +0000, Joel Soete wrote:
> just still have a small trouble with (builtin) nic:
> ...
> Configuring network interfaces...SIOCSIFADDR: No such device

The error normally means the driver didn't get loaded.
Several possible causes/fixes:
o See if module versioning is enabled and failed to load because
  of kernel/module version mismatch
o if it needs to be (but wasn't) included in the initrd.
o install hotplug package to autoload PCI drivers
o add driver to /etc/modules if you don't like hotplug package
  or want explicitly control over the order drivers get loaded.

grant
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Subject: [parisc-linux] Another minor LCD patch
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Hi,

Please find another small patch for lcd.c (against 2.6.12-rc1-pa6).

This fixes two things:

1) Ensure the work queue item is submitted to the workqueue by trying to=20
submit it in register_led_driver.  If register_led_driver is called by lasi=
=2Ec=20
etc *after* the device_initcall has created the workqueue (and submitted th=
e=20
workqueue task for the first time), the work can disappear from the queue i=
f=20
led_func_ptr is null when it is first run, as it doesn't resubmit itself if=
=20
this is the case.   I cannot see any way that queue_work can end up being=20
called twice, but even if it is, the second will quietly fail if the work=20
item is already in the queue.

2) Move the initial lcd_print to the device_initcall'ed function. This make=
s=20
it appear a fraction later in the boot process, thereby avoiding it being=20
trampled by any early-boot chassis codes (INI CC01 on my j5000).

Cheers,

David

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diff -urpN linux-2.6.12-rc1-pa6/drivers/parisc/led.c newtree/drivers/parisc=
/led.c
=2D-- linux-2.6.12-rc1-pa6/drivers/parisc/led.c	2005-03-28 07:50:20.0000000=
00 +0100
+++ newtree/drivers/parisc/led.c	2005-03-28 18:38:29.000000000 +0100
@@ -130,6 +130,9 @@ lcd_info __attribute__((aligned(8))) =3D
 /* The workqueue must be created at init-time */
 static int start_task(void)=20
 {=09
+	/* Display the default text now */
+	if (led_type =3D=3D LED_HASLCD) lcd_print( lcd_text_default );
+
 	/* Create the work queue and queue the LED task */
 	led_wq =3D create_singlethread_workqueue("led_wq");=09
 	queue_work(led_wq, &led_task);
@@ -548,7 +551,6 @@ int __init register_led_driver(int model
 		printk(KERN_INFO "LCD display at %lx,%lx registered\n",=20
 			LCD_CMD_REG , LCD_DATA_REG);
 		led_func_ptr =3D led_LCD_driver;
=2D		lcd_print( lcd_text_default );
 		led_type =3D LED_HASLCD;
 		break;
=20
@@ -578,6 +580,11 @@ int __init register_led_driver(int model
 	initialized++;
 	register_reboot_notifier(&led_notifier);
=20
+	/* Ensure the work is queued */
+	if (led_wq) {
+		queue_work(led_wq, &led_task);
+	}
+
 	return 0;
 }
=20

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> module ipv6 relocation of symbol ipv6_chk_addr is out of range (0x3ffefff=
d in=20
> 17 bits)
> module ipv6 relocation of symbol ipv6_chk_addr is out of range (0x3ffefff=
d in=20
> 17 bits)
>=20
> Are these anything to worry about?

Yeah, it's a bug. ipv6 won't work with that kernel because the module is
too big :(

Fixing this requires some work in binutils that nobody has been
motivated enough to pursue yet.

Kyle, if there is enough interest in ipv6, is making it builtin an
option?

randolph
--=20
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

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On Tue, 2005-03-29 at 19:01 -0800, Randolph Chung wrote:
> Fixing this requires some work in binutils that nobody has been
> motivated enough to pursue yet.

Well ... not necessarily binutils.  The module is compiled with -
ffunction-sections, so it could be fixed in the in-kernel loader as
well ...  Still have to find someone motivated enough to do the work,
though.

James


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On Tue, Mar 29, 2005 at 07:01:26PM -0800, Randolph Chung wrote:
> Fixing this requires some work in binutils that nobody has been
> motivated enough to pursue yet.
> 
> Kyle, if there is enough interest in ipv6, is making it builtin an
> option?
> 

I don't think so... It only effects -32-smp, as far as I can tell
(by testing), which is very few machines that can't run -64-smp
instead.

At this late stage of the game, it would likely cause much more harm
than good to build it in.

Cheers,
-- 
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I took a look at oo.o for hppa... it'll take quite a bit of work to get
it building. Are there enough people interested to make this happen?

Here's what I've found so far; there's probably more.

- oo.o needs libneon23-dev to build, this package is not available in
  Debian, but this is easily fixable. The package source explicitly
  disables builds on hppa, so you can just work around this by
  downloading the libneon23 source
- oo.o source needs a lot of arch-specific stuff to work:
  - build infrastructure
    debian/scripts/vars.hppa
    config_office/set_soenv.in needs to define a hppa section
    solenv/inc/ needs a hppa makefile fragment
    (probably more)
- need to write bridges code (http://porting.openoffice.org/)

i got past the first two items, but the third (bridges) is a significant
piece of work that will require some knowledge of asm and gcc c++ vtable
layouts and PA calling conventions..

if a few other people are interested, i'd be willing to help out....
but it looks like a lot of work :(

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] Re: Another LCD tweak
Date: Wed, 30 Mar 2005 11:15:03 -0700
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On Tue, Mar 29, 2005 at 07:42:41PM +0100, David Pye wrote:
> Sorry to keep sending these in, but:

np

> I found an issue where lcd_print tries to manipulate the work queue after it 
> has been destroyed.  Setting it to NULL after destroying it fixes this.

committed.

thanks,
grant
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On Thu March 31 2005 01:57, Matthias Klose wrote:
> 
> Using /bin/dash as the shell for the build seems to avoid these
> problems, I'll bash the Debian bash maintainer ... ;)
> 
Query - Which version of bash? 2.05b or 3.0?

Bash 3.0 has a lot of internal changes, this may
already be fixed.

Mike
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Subject: Re: [parisc-linux] OpenOffice.org on hppa
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Randolph Chung writes:
> I took a look at oo.o for hppa... it'll take quite a bit of work to get
> it building. Are there enough people interested to make this happen?
> 
> Here's what I've found so far; there's probably more.
> 
> - oo.o needs libneon23-dev to build, this package is not available in
>   Debian, but this is easily fixable. The package source explicitly
>   disables builds on hppa, so you can just work around this by
>   downloading the libneon23 source
> - oo.o source needs a lot of arch-specific stuff to work:
>   - build infrastructure
>     debian/scripts/vars.hppa
>     config_office/set_soenv.in needs to define a hppa section
>     solenv/inc/ needs a hppa makefile fragment
>     (probably more)
> - need to write bridges code (http://porting.openoffice.org/)
> 
> i got past the first two items, but the third (bridges) is a significant
> piece of work that will require some knowledge of asm and gcc c++ vtable
> layouts and PA calling conventions..
> 
> if a few other people are interested, i'd be willing to help out....
> but it looks like a lot of work :(

I assume you're talking about OO.o1, given the libneon23-dev build
dependency. Not sure, if you want to make this work for sarge, but in
any other case, please consider doing the work on OOo.2. Some people
are working on this, see #debian-oo and the debian-oo mailing list.

	Matthias
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> filed http://bugs.debian.org/301577 (although most of the discussion
> isn't in the report).

That should be http://bugs.debian.org/301557.  Daniel thought this
bug should be reassigned to expect.  On the other hand, dejagnu maybe
expecting too much of expect.

> with /bin/dash as shell and expect-tcl8.3 as expect version, the build
> and check succeeded. Test results at
> 
>   http://gcc.gnu.org/ml/gcc-testresults/2005-03/msg01933.html

FAIL: g++.old-deja/g++.warn/compare1.C  (test for warnings, line 11)
FAIL: g++.old-deja/g++.warn/compare1.C  (test for warnings, line 24)
FAIL: g++.old-deja/g++.warn/compare1.C (test for excess errors)
FAIL: gcc.c-torture/compile/20011119-2.c  -O1  (test for excess errors)

These are now fixed.

FAIL: thread/pthread7-rope.cc execution test

I don't see this in my testing.  On the other hand, the java failures
appear to be related to pthread support, so I think it likely that
we have one or more pthread bugs.  The java failures vary from one
run to another.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] lmbench results for A500-6X SMP
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I don't have historical data for this machine, but the numbers look
pretty good compared to what I have seen before. Our mmap numbers
continue to suck though :(

This is running 2.6.12-rc1-pa7 SMP, on a 650MHz A500-6X

                 L M B E N C H  3 . 0   S U M M A R Y
                 ------------------------------------
		 (Alpha software, do not distribute)

Basic system parameters
------------------------------------------------------------------------------
Host                 OS Description              Mhz  tlb  cache  mem   scal
                                                     pages line   par   load
                                                           bytes  
--------- ------------- ----------------------- ---- ----- ----- ------ ----
riot      Linux 2.6.12-        hppa64-linux-gnu  650   239   128 1.9200    1

Processor, Processes - times in microseconds - smaller is better
------------------------------------------------------------------------------
Host                 OS  Mhz null null      open slct sig  sig  fork exec sh  
                             call  I/O stat clos TCP  inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
riot      Linux 2.6.12-  650 0.53 0.83 5.03 6.95 50.6 1.52 7.85 2476 9872 25.K

Basic integer operations - times in nanoseconds - smaller is better
-------------------------------------------------------------------
Host                 OS  intgr intgr  intgr  intgr  intgr  
                          bit   add    mul    div    mod   
--------- ------------- ------ ------ ------ ------ ------ 
riot      Linux 2.6.12- 1.5400 1.5500 9.1500  146.0  153.2

Basic float operations - times in nanoseconds - smaller is better
-----------------------------------------------------------------
Host                 OS  float  float  float  float
                         add    mul    div    bogo
--------- ------------- ------ ------ ------ ------ 
riot      Linux 2.6.12- 4.6500 4.6400   27.9   16.7

Basic double operations - times in nanoseconds - smaller is better
------------------------------------------------------------------
Host                 OS  double double double double
                         add    mul    div    bogo
--------- ------------- ------  ------ ------ ------ 
riot      Linux 2.6.12- 4.6300 4.6600   52.4   24.2

Context switching - times in microseconds - smaller is better
-------------------------------------------------------------------------
Host                 OS  2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
                         ctxsw  ctxsw  ctxsw ctxsw  ctxsw   ctxsw   ctxsw
--------- ------------- ------ ------ ------ ------ ------ ------- -------
riot      Linux 2.6.12-   12.7   12.5   12.8   13.2   21.7    33.6    82.5

*Local* Communication latencies in microseconds - smaller is better
---------------------------------------------------------------------
Host                 OS 2p/0K  Pipe AF     UDP  RPC/   TCP  RPC/ TCP
                        ctxsw       UNIX         UDP         TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
riot      Linux 2.6.12-  12.7  32.8 36.5  50.8  65.7  55.8  84.7     

File & VM system latencies in microseconds - smaller is better
-------------------------------------------------------------------------------
Host                 OS   0K File      10K File     Mmap    Prot   Page   100fd
                        Create Delete Create Delete Latency Fault  Fault  selct
--------- ------------- ------ ------ ------ ------ ------- ----- ------- -----
riot      Linux 2.6.12-   46.2   49.1  189.3  101.0   10.2K 342.2    25.4  37.3

*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------------------------
Host                OS  Pipe AF    TCP  File   Mmap  Bcopy  Bcopy  Mem   Mem
                             UNIX      reread reread (libc) (hand) read write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
riot      Linux 2.6.12- 227. 334. 231.  424.4  615.5  287.7  290.1 624. 516.3

Memory latencies in nanoseconds - smaller is better
    (WARNING - may not be correct, check graphs)
------------------------------------------------------------------------------
Host                 OS   Mhz   L1 $   L2 $    Main mem    Rand mem    Guesses
--------- -------------   ---   ----   ----    --------    --------    -------
riot      Linux 2.6.12-   650 4.6290 4.6270  192.6       367.7    No L1 cache?
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Erik T. Crouch writes...

> Is there ANY way of making the firmware image extractable/writable to a 
> CD, I also do not have a floppy drive.

IIRC you can just burn the firmware lif image directly to a CD and boot it the 
same as you'd dd to a tape or hdd. BTW file(1) knows about lif images, confirm 
that you have a proper lif and then just burn it to CD with cdrecord or 
something.

You mention in a later message "dd it to a virtual disc, then make it a bin 
image which you can translate into an ISO". I suspect that's not changing it 
at all since if you actually changed the lif image it probably wouldn't work 
anymore.

Inevitably someone will ask how to do this on MS Windows. I don't know anyone 
who's done it but if you follow the normal method for burning hppa bootable 
images listed at
  http://www.parisc-linux.org/faq/burn_hppa_cd-howto.html
it should work.

-- 
Matt Taggart
matt@lackof.org


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Hi pa-ckers

tried 2.6.12-rc1-pa9 64bit SMP (gcc 3.3.5) with DEBUG_SLAB enabled, got
the following BUG:
LBA version TR4.0 (0x5) found at 0xfffffffffed3c000
kernel BUG at mm/slab.c:1495!
Backtrace:
 [<0000000010114480>] show_stack+0x60/0xf0
 [<0000000010301f7c>] $$divoI+0x30c/0x460
 [<0000000010107074>] intr_return+0x0/0x24
 [<00000000101df19c>] page_put_link+0x14c/0x258
 [<000000001011daac>] cpu_idle+0x34/0x40
 [<000000001013f548>] activate_task+0x98/0x108
 [<0000000010164ffc>] do_sigaction+0x1e4/0x2b8
 [<00000000101720ec>] kthread+0x144/0x150
 [<000000001010647c>] ret_from_kernel_thread+0x24/0x40
Kernel panic - not syncing: BUG!

Trying one more time was significantly the same (except the second line in
the backtrace):

LBA version TR4.0 (0x5) found at 0xfffffffffed3c000
kernel BUG at mm/slab.c:1495!
Backtrace:
 [<0000000010114480>] show_stack+0x60/0xf0
 [<000000001010ab04>] $$remoI+0x278/0x1414
 [<0000000010107074>] intr_return+0x0/0x24
 [<000000001011daac>] cpu_idle+0x34/0x40
 [<000000001013f548>] activate_task+0x98/0x108
 [<0000000010164ffc>] do_sigaction+0x1e4/0x2b8
 [<00000000101720ec>] kthread+0x144/0x150
 [<000000001010647c>] ret_from_kernel_thread+0x24/0x40

Now the exact same kernel with DEBUG_SLAB disabled:

LBA version TR4.0 (0x5) found at 0xfffffffffed3c000
SCSI subsystem initialized
unwind_init: start = 0x104bfec0, end = 0x104e7e90, entries = 10237
Performance monitoring counters enabled for Duet W+
SGI XFS with large block/inode numbers, no debug enabled
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 20)

Unfortunately things weren't meant to last long:

Checking root file system...
fsck 1.35 (28-Feb-2004)
Backtrace:
 [<000000001027e400>] xfs_alloc_fix_freelist+0x450/0x470
 [<000000001027f060>] xfs_free_extent+0xb8/0x120
 [<000000001028ff6c>] xfs_bmap_finish+0x17c/0x210
 [<00000000102b75e0>] xfs_itruncate_finish+0x188/0x388
 [<00000000102d5b40>] xfs_setattr+0x8d8/0x1068
 [<00000000102e80f4>] linvfs_setattr+0x174/0x228
 [<00000000101eb64c>] notify_change+0x204/0x2b0
 [<00000000101b8e50>] do_truncate+0x80/0x110
 [<00000000101d92a0>] may_open+0x270/0x2d8
 [<00000000101d9424>] open_namei+0x11c/0xc10
 [<00000000101ba1f8>] filp_open+0x48/0x88
 [<00000000101baae0>] sys_open+0x98/0xf0
 [<0000000010107fb4>] syscall_exit+0x0/0x14


Kernel Fault: Code=15 regs=00000000ff71ce90 (Addr=0000000566adeb00)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  0000000000000000 0000000466c87700 000000001027e884
0000000566adeb00
r04-07  000000001060d840 000000001027e400 00000000ff0a5738
00000000ff71cce0
r08-11  0000000000000001 0000000000000000 0000000010488a80
0000000000000002
r12-15  00000000ff71c960 0000000000000000 0000000000000001
00000000ff71c950
r16-19  0008000000000001 0000000000000000 0000000000000001
00000000ffe57400
r20-23  0000000000000000 00000000ff1b3b40 0000000000000080
00000000ff2fd200
r24-27  00000000ffe7a000 000000000007e434 00000000ff0a5738
000000001060d840
r28-31  0000000000000000 00000000ff71cf20 00000000ff71ce90
00000000ffd459a8
sr0-3   000000000002a800 0000000000000000 0000000000000000
000000000002a800
sr4-7   0000000000000000 0000000000000000 0000000000000000
0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001027e99c
000000001027e9a0
 IIR: 0c601014    ISR: 0000000000000000  IOR: 0000000566adeb00
 CPU:        1   CR30: 00000000ff71c000 CR31: 000000005001c08c
 ORIG_R28: 000000001060d840
 IAOQ[0]: xfs_alloc_read_agf+0x1bc/0x240
 IAOQ[1]: xfs_alloc_read_agf+0x1c0/0x240
 RP(r2): xfs_alloc_read_agf+0xa4/0x240
Kernel panic - not syncing: Kernel Fault

Truth told, it's 3:30 AM and I had a bunch of important things on that
machine, i'd rather not know how badly broken my FS is right now :(

HTH

T-Bone
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Subject: [parisc-linux] pthread problems - test program
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Xref: news.gmane.org gmane.linux.ports.parisc:22548

While testing out some stuff today, I ran across a threaded
program that will hang randomly when run. I tried to create a test case
to simulate what the larger program is doing. It also hangs, although
perhaps for different reasons (not sure yet)

The test program is in cvs in the userspace repository. It's called
thread_test2.c. It creates threads one at a time, and uses condition
variables for synchronization. On hppa the program will hang after some
time, and ps shows a lot of zombie processes. On x86 the program runs as
expected and there are no zombies.

I don't know if this is related to some of the hanging problems Dave and
doko have seen sometimes during gcc testing.... but our pthreads
definitely seem to be a bit buggy :(

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: Re: [parisc-linux] pthread problems - test program
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Xref: news.gmane.org gmane.linux.ports.parisc:22549

> I don't know if this is related to some of the hanging problems Dave and
> doko have seen sometimes during gcc testing.... but our pthreads
> definitely seem to be a bit buggy :(

I was going to add Ada tasking to the list of pthread problems but
I just discovered that Ada hard codes signal numbers for linux and
some of our signal numbers are different from those used on x86.

I believe that our Java testsuite fails are probably pthread related.
I sometimes end up with Java programs that don't die when their
respective test completes.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Is those comments in our entry.S:
> ...
>          /* Floating point registers (FIXME: what do we do with these?)
> 
>             %fr0  - %fr3    status/exception, not preserved
>             %fr4  - %fr7    arguments
>             %fr8  - %fr11   not preserved by C code
>             %fr12 - %fr21   preserved by C code
>             %fr22 - %fr31   not preserved by C code
>           */
> ...
> 
> Are still uptodate?

Yes, these are from the HP-UX ABI.

> what 'preserved by C code' would mean?

The register remains unchanged across a call.  Call used registers
don't have to be preserved.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> The test program is in cvs in the userspace repository. It's called
> thread_test2.c. It creates threads one at a time, and uses condition
> variables for synchronization. On hppa the program will hang after some
> time, and ps shows a lot of zombie processes. On x86 the program runs as
> expected and there are no zombies.

What's the situation on the following signals: SIGLTHRRES, SIGLTHRCAN
and SIGLTHRDBG?  I'm not sure but pthread_cond_signal may need SIGLTHRRES.
Are these signals 37, 38 and 39?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] pthread problems - test program
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> The test program is in cvs in the userspace repository. It's called
> thread_test2.c. It creates threads one at a time, and uses condition
> variables for synchronization. On hppa the program will hang after some
> time, and ps shows a lot of zombie processes. On x86 the program runs as
> expected and there are no zombies.

I see threadfunc uses waitpid.  This is the same syscall that seems
to cause problems with expect (zombie expect child and parent waiting
for signal that never comes).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] gcc (3.3.5) causing problems in our latest kernel.
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On Sun, Apr 03, 2005 at 04:40:57PM -0500, James Bottomley wrote:
> The problem is that the macros depend on clever optimisation using
> sizeof(*ptr) as an argument to an inline function.  The following
> program illustrates the issue:

Perhaps there's a difference between an inline function and a macro
in terms of constant propagation?  If you turn __test_width() into
a macro, it should work (see the implementation of __get_user() in
asm-parisc/uaccess.h)

> extern void bad_function(void);
> 
> static inline void __test_width(char *var, int size) {
> 	switch (size) {	
> 	case 1:
> 	case 2:
> 	case 4:
> 	case 8:
> 		*var++ = 0;
> 		break;
> 	default:
> 		bad_function();
> 	}
> }
> 
> #define test_width(x)	__test_width((char *)(x), sizeof(x))
> 
> main(int argc, char *argv) {
> 	int test;
> 
> 	test_width(&test);
> }
> 
> If I compile this on an ia64 box, everything is fine:
> 
> jejb@titanic> gcc -O2 test.c
> jejb@titanic> gcc -v
> Reading specs from /usr/lib/gcc-lib/ia64-linux/3.3.5/specs
> Configured with: ../src/configure -v --enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --with-system-libunwind --enable-clocale=gnu --enable-debug --enable-java-gc=boehm --enable-java-awt=xlib --enable-objc-gc ia64-linux
> Thread model: posix
> gcc version 3.3.5 (Debian 1:3.3.5-8)
> 
> But on a parisc system it fails:
> 
> jejb@raven> gcc -O2 test.c
> /tmp/cccwaI1E.o(.text+0x60): In function `main':
> : undefined reference to `bad_function'
> collect2: ld returned 1 exit status
> jejb@raven> gcc -v
> Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3.5/specs
> Configured with: ../src/configure -v --enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-sjlj-exceptions --enable-clocale=gnu --enable-debug --enable-java-gc=boehm --enable-java-awt=xlib --enable-objc-gc hppa-linux
> Thread model: posix
> gcc version 3.3.5 (Debian 1:3.3.5-5)
> 
> Before I have to tell Dave Miller that his clever trick won't work for
> us, is there a way of fixing it?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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> The problem is that the macros depend on clever optimisation using
> sizeof(*ptr) as an argument to an inline function.  The following
> program illustrates the issue:
> 
> extern void bad_function(void);
> 
> static inline void __test_width(char *var, int size) {
> 	switch (size) {	
> 	case 1:
> 	case 2:
> 	case 4:
> 	case 8:
> 		*var++ = 0;
> 		break;
> 	default:
> 		bad_function();
> 	}
> }

I think the optimization of switch statements is far from optimal.
I suspect that the optimization of if statements is better.  A similar
issue causes warning from __put_user in a 32-bit build.  Probably,
this should be a GCC PR.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, 2005-04-03 at 23:13 +0100, Matthew Wilcox wrote:
> Perhaps there's a difference between an inline function and a macro
> in terms of constant propagation?  If you turn __test_width() into
> a macro, it should work (see the implementation of __get_user() in
> asm-parisc/uaccess.h)

Yes, if I change it to a pure #define, everything works OK.

However, unless we can get the inline function to work, I still have to
go back to davem ... Do I just tell him we can't fix our toolchain, so
how about this?

James


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On Sun, Apr 03, 2005 at 06:56:28PM -0500, James Bottomley wrote:
> On Sun, 2005-04-03 at 23:13 +0100, Matthew Wilcox wrote:
> > Perhaps there's a difference between an inline function and a macro
> > in terms of constant propagation?  If you turn __test_width() into
> > a macro, it should work (see the implementation of __get_user() in
> > asm-parisc/uaccess.h)
> 
> Yes, if I change it to a pure #define, everything works OK.
> 
> However, unless we can get the inline function to work, I still have to
> go back to davem ... Do I just tell him we can't fix our toolchain, so
> how about this?

Even if we can fix the toolchain, there's going to be a lot of people
out there who'd have to upgrade.  I'd prefer it if we didn't have to
force an upgrade ...

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] gcc (3.3.5) causing problems in our latest kernel.
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> > static inline void __test_width(char *var, int size) {
> > 	switch (size) {	
> > 	case 1:
> > 	case 2:
> > 	case 4:
> > 	case 8:
> > 		*var++ = 0;
> > 		break;
> > 	default:
> > 		bad_function();
> > 	}
> > }
> 
> I think the optimization of switch statements is far from optimal.
> I suspect that the optimization of if statements is better.  A similar
> issue causes warning from __put_user in a 32-bit build.  Probably,
> this should be a GCC PR.

Try changing that function to
static inline void __test_width(char *var, const int size) {

willy says it worked for him :)

randolph
-- 
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> What's the situation on the following signals: SIGLTHRRES, SIGLTHRCAN
> and SIGLTHRDBG?  I'm not sure but pthread_cond_signal may need SIGLTHRRES.
> Are these signals 37, 38 and 39?

yes, we use the same signals. 

int __pthread_sig_restart = __SIGRTMIN;
int __pthread_sig_cancel = __SIGRTMIN + 1;
int __pthread_sig_debug = __SIGRTMIN + 2;

SIGRTMIN is 37

i think we can reduce the test to a signals test. if you strace the test
program you will see that it's doing a loop of sigprocmask(),
sigsuspend(), wake up by signal, etc.... that may make a test case a bit
simpler.

randolph
-- 
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In reference to a message from John David Anglin, dated Apr 03:
> > The test program is in cvs in the userspace repository. It's called
> > thread_test2.c. It creates threads one at a time, and uses condition
> > variables for synchronization. On hppa the program will hang after some
> > time, and ps shows a lot of zombie processes. On x86 the program runs as
> > expected and there are no zombies.
> 
> I see threadfunc uses waitpid.  This is the same syscall that seems
> to cause problems with expect (zombie expect child and parent waiting
> for signal that never comes).

This is very similar to what happens with my test program.

Running this under gdb is kind of amusing. gdb gets quite confused...

randolph
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Hi,

I just got the cache_grow panic on my 715/100:

Unpacking libgtk2.0-0 (from ../libgtk2.0-0_2.6.2-4_hppa.deb) ...
Selecting previously deselected package libidl0.
Unpacking libidl0 (from ../libidl0_0.8.5-1_hppa.deb) ...
Selecting previously deselected package mozilla-firefox.
Unpacking mozilla-firefox (from .../mozilla-firefox_1.0.2-1_hppa.deb) ...
Backtrace:
 [<1014f854>] cache_grow+0xd4/0x1a8
 [<1014fac8>] cache_alloc_refill+0x1a0/0x260
 [<1014fdc0>] kmem_cache_alloc+0x30/0x4c
 [<101c1680>] journal_alloc_journal_head+0x28/0xac
 [<101c17f0>] journal_add_journal_head+0xc8/0x13c
 [<101bae74>] journal_dirty_data+0x64/0x1b0
 [<101aa494>] ext3_journal_dirty_data+0x1c/0x60
 [<101aa25c>] walk_page_buffers+0xe0/0xf0
 [<101aab68>] ext3_ordered_writepages+0x168/0x1fc
 [<1019112c>] mpage_writepages+0x28c/0x3b0
 [<1018f48c>] __sync_single_inonde+0x5c/0x278
 [<1018f710>] __writebacak_single_inode+0x68/0x168
 [<1018f9dc>] sync_sb_inodes+0x1cc/0x310
 [<1018fb90>] writeback_inodes+0x70/0xd4
 [<1014cc50>] background_writeout+0xb4/0x10c
 [<1014d93c>] __pdflush+0x138/0x204


Kernel Fault: Code=15 regs=106a4a40 (Addr=26e3688c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001110011100001111 Not tainted
r00-03  00000000 10362620 1014d854 1035a9b4
r04-07  16adc000 100ad460 00000010 00000050
r08-11  00000001 00000000 00001000 136543e8
r12-15  101aa9d0 1073458c 00002000 00000000
r16-19  101aaa00 106a4508 00000000 26e369b4
r20-23  0000000f 00000000 102df4f4 00000050
r24-27  1035a87c 00000050 100ad460 102cd010
r28-31  26e3687c 00000000 106a4a40 10152084
sr0-3   00000000 000001dc 00000000 000001dc
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1014f5c8 1014f5cc
 IIR: 6b800020    ISR: 00000000  IOR: 26e3688c
 CPU:        0   CR30: 106a4000 CR31: 10314000
 ORIG_R28: 24e0bb4c
 IAOQ[0]: alloc_slabmgmt+0x30/0x6c
 IAOQ[1]: alloc_slabmgmt+0x34/0x6c
 RP(r2): cache_grow+0xd4/0x1a8
Kernel panic - not syncing: Kernel Fault

-- 
Stuart Brady
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On Sun, Apr 03, 2005 at 05:50:38PM -0700, Randolph Chung wrote:
> > What's the situation on the following signals: SIGLTHRRES, SIGLTHRCAN
> > and SIGLTHRDBG?  I'm not sure but pthread_cond_signal may need SIGLTHRRES.
> > Are these signals 37, 38 and 39?
> 
> yes, we use the same signals. 
> 
> int __pthread_sig_restart = __SIGRTMIN;
> int __pthread_sig_cancel = __SIGRTMIN + 1;
> int __pthread_sig_debug = __SIGRTMIN + 2;
> 
> SIGRTMIN is 37
> 
> i think we can reduce the test to a signals test. if you strace the test
> program you will see that it's doing a loop of sigprocmask(),
> sigsuspend(), wake up by signal, etc.... that may make a test case a bit
> simpler.

It irks me that such a simple program doesn't run properly :(
I've started digging into the code, and I'm going to add some signal
printk's to see what we're missing.

c.

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On Sun, Apr 03, 2005 at 05:50:38PM -0700, Randolph Chung wrote:
> i think we can reduce the test to a signals test. if you strace the test
> program you will see that it's doing a loop of sigprocmask(),
> sigsuspend(), wake up by signal, etc.... that may make a test case a bit
> simpler.

Agreed. It looks like sigsuspend just isn't returning and looping
forever in the kernel.

c.

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On Mon, Apr 04, 2005 at 08:02:34PM -0400, Carlos O'Donell wrote:
> On Sun, Apr 03, 2005 at 05:50:38PM -0700, Randolph Chung wrote:
> > i think we can reduce the test to a signals test. if you strace the test
> > program you will see that it's doing a loop of sigprocmask(),
> > sigsuspend(), wake up by signal, etc.... that may make a test case a bit
> > simpler.
> 
> Agreed. It looks like sigsuspend just isn't returning and looping
> forever in the kernel.

I found another program that doesn't work on hppa. This one was written
by Randolph if my memory serves me correctly. I'll have to add it to the
userspace tests that fail.

---
all: foo.c libfoo.c
	gcc -g -shared -c libfoo.c
	rm -f libfoo.so
	ln -s libfoo.o libfoo.so
	gcc -g -o foo foo.c -lfoo -L. -lpthread

clean:
	rm -f *.o
	rm -f *.so
	rm -f foo
---
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/wait.h>

void exit_on_signal(int signr)
{
  int status;
  pid_t child;
  fprintf(stderr, "Exiting on signal from child\n");
  child = wait(&status);
  fprintf(stderr, "Waited for child %d\n",(int)child);
  exit(0);
}

extern void foo(void);

int main(void)
{
  int status;
/*  foo();*/
  signal(SIGUSR2,exit_on_signal);
  pid_t parent = getpid();
  if (fork() == 0) 
    {
      /* child kills parent */
      kill(parent, SIGUSR2);
    } 
  else 
    {
      printf("Parent done.\n");
    }
  return 0;
}
---
#include <pthread.h>

void
do_prepare(void)
{
	printf("do_prepare\n");
}

void
do_child(void)
{
	printf("do_child\n");
}

void
foo(void)
{
	  pthread_atfork(&do_prepare, NULL, &do_child);
}
---

Try it out.

c.

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Subject: [parisc-linux] some other small bitops.h suggestion?
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Hello Randolph,

Thanks for previous ci :-)

Here is some other change to suggest (even thought it doesn't fix anythin=
g
:-( ):
--- include/asm-parisc/bitops.h.Orig    2005-04-05 10:29:52.000000000 +02=
00
+++ include/asm-parisc/bitops.h 2005-04-05 10:58:36.000000000 +0200
@@ -304,17 +304,10 @@
  * hweightN: returns the hamming weight (i.e. the number
  * of bits set) of a N-bit word
  */
-#define hweight64(x)                                           \
-({                                                             \
-       unsigned long __x =3D (x);                                \
-       unsigned int __w;                                       \
-       __w =3D generic_hweight32((unsigned int) __x);            \
-       __w +=3D generic_hweight32((unsigned int) (__x>>32));     \
-       __w;                                                    \
-})
-#define hweight32(x) generic_hweight32(x)
-#define hweight16(x) generic_hweight16(x)
-#define hweight8(x) generic_hweight8(x)
+#define hweight64(x)   generic_hweight64(x)
+#define hweight32(x)   generic_hweight32(x)
+#define hweight16(x)   generic_hweight16(x)
+#define hweight8(x)    generic_hweight8(x)
 
 /*
  * Every architecture must define this function. It's the fastest
@@ -337,10 +330,8 @@
 #else
        if (unlikely(b[0]))
                return __ffs(b[0]);
-       if (unlikely(((unsigned int)b[1])))
+       if (unlikely(b[1]))
                return __ffs(b[1]) + 64;
-       if (b[1] >> 32)
-               return __ffs(b[1] >> 32) + 96;
        return __ffs(b[2]) + 128;
 #endif
 }
=3D=3D=3D=3D><=3D=3D=3D=3D

The first hunk was because hweight64() was not 32bit ok (even thought not=

actually used right now) and willy suggest me this change (as other arch
:-) ).

The second hunk just because I didn't understand why this form (looks lik=
e
sparc64) and not another (e.g. ppc64).
I so wrote a small test (here attached bitops-t5.c) and don't see signifi=
cant
performance lost/win (excepted if I made mistakes)

Thanks,
    Joel



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Randolph,

This is the testcase I will use to demonstrate gdb's problem with single
stepping after loosing the frame, and generally getting confused.

I need to be able to step out of the plt trampoline and into the
loaded/relocated function.

---
set env CPP='gcc -E -x c-header'
file /usr/lib/debug/ld.so.1
set args --library-path \
/usr/lib/debug:/usr/lib/debug/lib/:/usr/lib/debug/usr/lib:/usr/lib:/lib \
/bin/touch test.txt
break fixup
break *_dl_runtime_resolve+68
run
si
si
---

This only works if you are using some glibc with the same offsets in
_dl_runtime_resolve (the plt trampoline).

After that last 'si' you are already going to the new function (as
looked up and loaded by the dynamic loader).

gdb chokes at this point and won't let me 'si' through the insn
sequences. In the past gdb would enter asm mode, and attempted to show
me the insn addresses (not even the insn, though that would have been
awesome). At this point I used 'i r' to watch the registers and continue
using 'si' to walk through the problem function.

Currently gdb won't produce 'i r' without some frame or function
information, though it seems to half work if I break and then issue 'i
r'.

Thoughts? It makes for debugging ld.so much more painful with gdb's
current behaviour. I have to use a lot of breaks since 'si' doesn't work
but break tends to work almost always. 

Cheers,
Carlos.
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Randolph,

Is DTPMOD32 and DTPOFF32 all I need to add to glibc for some initial TLS
testing?

Recommended tests to make sure this is working?

c.

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> Is DTPMOD32 and DTPOFF32 all I need to add to glibc for some initial TLS
> testing?

Well, plus the setting up of the THREAD_DTV() stuff.

> Recommended tests to make sure this is working?

I haven't really looked, but glibc has a bunch of TLS tests. It'll also
pretty easy to write our own test cases. 

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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On Tue, Apr 05, 2005 at 09:26:43AM -0700, Randolph Chung wrote:
> > Is DTPMOD32 and DTPOFF32 all I need to add to glibc for some initial TLS
> > testing?
> 
> Well, plus the setting up of the THREAD_DTV() stuff.

Oh, and TPREL32.
 
> > Recommended tests to make sure this is working?
> 
> I haven't really looked, but glibc has a bunch of TLS tests. It'll also
> pretty easy to write our own test cases. 

I can't turn that machinery on yet. I have to test with TLS off but
handling the relocations first to see if it works :)

c.

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On Tue, Apr 05, 2005 at 12:34:01PM -0400, Carlos O'Donell wrote:
> I can't turn that machinery on yet. I have to test with TLS off but
> handling the relocations first to see if it works :)

To hell with it, I'm turing it all one just to see what I need.
One thing, I'm writing some configure.in asm to test gas and such.
What do you think of this as a test:

gcc -c only.

----
; Setup tls data
.section ".tdata","awT",@progbits
foo:	.data	32 
	.text
; Test general dyanmic relocations
test0:
	addil 	LT'foo-$tls_gdidx$, %r19	
	ldo 	RT'foo-$tls_gdidx$(%r1), %r26
	b 	__tls_get_addr
	nop
; Test local dynamic relocations
test1:
	addil 	LT'foo-$tls_ldidx$, %r19
	b 	__tls_get_addr
	ldo 	RT'foo-$tls_ldidx$(%r1), %r26
	ldo 	RR'foo-$tls_dtpoff$(%r1), %r25
	; More variables can be loaded...
; Test initial exec reloctiosn
test2:
	mfctl 	%cr27, %r26
	addil 	LT'foo-$tls_ieoff$, %r19
	ldw 	RT'foo-$tls_ieoff$(%r1), %r25
	add 	%r26, %r25, %r24
; Test local exec relocations
test3:
	mfctl 	%cr27, %r26
	addil 	LR'foo-$tls_leoff$, %r26 
	ldo 	RR'foo-$tls_leoff$(%r1), %r25
; Done all the TLS tests.
---

If it can compile this then it's cool. Normal gcc/binutils chokes but
the tls-toolchain works just fine :)

Please update your documentation, the symbols used for relocation don't
match (e.g. $tls_dtlndx$ is really $tls_gdix$)?

c.

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On Tue, Apr 05, 2005 at 03:16:12PM -0400, Carlos O'Donell wrote:
> On Tue, Apr 05, 2005 at 12:34:01PM -0400, Carlos O'Donell wrote:
> > I can't turn that machinery on yet. I have to test with TLS off but
> > handling the relocations first to see if it works :)
> 
> To hell with it, I'm turing it all one just to see what I need.
> One thing, I'm writing some configure.in asm to test gas and such.
> What do you think of this as a test:
> 
> gcc -c only.

This turns on HAVE_TLS_SUPPORT in glibc btw.

c.

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On Tue, Apr 05, 2005 at 03:39:59PM -0400, Carlos O'Donell wrote:
> On Tue, Apr 05, 2005 at 03:16:12PM -0400, Carlos O'Donell wrote:
> > On Tue, Apr 05, 2005 at 12:34:01PM -0400, Carlos O'Donell wrote:
> > > I can't turn that machinery on yet. I have to test with TLS off but
> > > handling the relocations first to see if it works :)
> > 
> > To hell with it, I'm turing it all one just to see what I need.
> > One thing, I'm writing some configure.in asm to test gas and such.
> > What do you think of this as a test:
> > 
> > gcc -c only.
> 
> This turns on HAVE_TLS_SUPPORT in glibc btw.

glibc with TLS is sorta building, still running into some build problems
here and there.

glibc without TLS is down to the following tessuite failures:

make[2]: *** [/math/test-float.out] Error 1
make[2]: *** [/math/test-double.out] Error 1
make[2]: *** [/math/test-ifloat.out] Error 1
make[2]: *** [/math/test-idouble.out] Error 1
make[1]: *** [math/tests] Error 2
make[2]: *** [/stdlib/tst-strtod.out] Error 1
make[2]: *** [/stdlib/bug-strtod.out] Error 1
make[1]: *** [stdlib/tests] Error 2
make[2]: [/posix/annexc.out] Error 1 (ignored)
make[2]: *** [/elf/tst-audit1.out] Error 139
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

The only regression is 'tst-audit1' which is because I haven't finished
the auditing support, but the non-audit code works.

c.

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> > What's the situation on the following signals: SIGLTHRRES, SIGLTHRCAN
> > and SIGLTHRDBG?  I'm not sure but pthread_cond_signal may need SIGLTHRRES.
> > Are these signals 37, 38 and 39?
> 
> yes, we use the same signals. 

It looks as if we have 36 signals which may need to be blocked.  However,
_SIGSET_NWORDS is 32.  Is this a problem?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Apr 05, 2005 at 09:21:17PM -0400, John David Anglin wrote:
> > > What's the situation on the following signals: SIGLTHRRES, SIGLTHRCAN
> > > and SIGLTHRDBG?  I'm not sure but pthread_cond_signal may need SIGLTHRRES.
> > > Are these signals 37, 38 and 39?
> > 
> > yes, we use the same signals. 
> 
> It looks as if we have 36 signals which may need to be blocked.  However,
> _SIGSET_NWORDS is 32.  Is this a problem?

I don't quite understand what you mean by this? Can you show me the code
that defines this and where the error might be?

c.

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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: [parisc-linux] TLS patches for glibc,
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Farthest I've gotten in my build yet, putting together the libc library
causes a linker error:

--
gcc   -nostdlib -nostartfiles -r -o
/home/carlos/fsrc/tls-toolchain/build/libc/2005-04-05-hppa/elf/librtld.map.o
'-Wl,-('
/home/carlos/fsrc/tls-toolchain/build/libc/2005-04-05-hppa/elf/dl-allobjs.os
/home/carlos/fsrc/tls-toolchain/build/libc/2005-04-05-hppa/libc_pic.a
-lgcc '-Wl,-)'
-Wl,-Map,/home/carlos/fsrc/tls-toolchain/build/libc/2005-04-05-hppa/elf/librtld.mapT
/mnt/flaire/src/tls-toolchain/install/bin/../lib/gcc/hppa-linux/3.4.3/../../../../hppa-linux/bin/ld:
__libc_errno: TLS definition in
/home/carlos/fsrc/tls-toolchain/build/libc/2005-04-05-hppa/libc_pic.a(errno.os)
section .tbss mismatches non-TLS reference in
/home/carlos/fsrc/tls-toolchain/build/libc/2005-04-05-hppa/libc_pic.a(check_fds.os)
/home/carlos/fsrc/tls-toolchain/build/libc/2005-04-05-hppa/libc_pic.a:
could not read symbols: Bad value
collect2: ld returned 1 exit status
make[2]: ***
[/home/carlos/fsrc/tls-toolchain/build/libc/2005-04-05-hppa/elf/librtld.map]
Error 1
make[2]: Leaving directory `/mnt/flaire/src/tls-toolchain/src/libc/elf'
make[1]: *** [elf/subdir_lib] Error 2
make[1]: Leaving directory `/mnt/flaire/src/tls-toolchain/src/libc'
make: *** [all] Error 2
--

I later realized that this all has to do with our handling of errno. I'm
going to have to bite the bullet and write the ugly ASM code to handle
all the errno cases based on defines during the build.

glibc head patches:
http://www.parisc-linux.org/~carlos/glibc-work/glibc-hppa-patches-2005-04-05.tar.gz

tls patches against the above:
http://www.parisc-linux.org/~carlos/glibc-work/glibc-hppa-tls-2005-04-05.diff

That *should* get you to the above state.

c.

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> #define SIGXCPU         33      /* CPU limit exceeded (4.2 BSD).  */
> #define SIGXFSZ         34      /* File size limit exceeded (4.2 BSD).  */
> #define SIGSTKFLT       36      /* Stack fault.  */

I guess the answer to my question is these signals aren't used,
so we only support a maximum of 32 signals that can be masked.
Hopefully, an EINVAL error will be generated if the above signals
used.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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i have now mangaed to boot longer in the boot process with 2.6.12
so i am submiting a new bootlog.

http://www.ing.umu.se/~dizzey/bootlog_k460_2.6.12-rc1-pa4

i did try to boot the 2.6.12 kernel without md raid support but gave the same results.
im sorry but i seem to have lost the bootloog for that event if you want it i will try to make a new 
tomrow.

im also seending a log for 2.6.8.1 wich to my eyes seems to have some kind of simular error.

http://www.ing.umu.se/~dizzey/bootlog_k460_2.6.8.1-pa11


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On Wed, Apr 06, 2005 at 12:11:31PM -0400, John David Anglin wrote:
> > #define SIGXCPU         33      /* CPU limit exceeded (4.2 BSD).  */
> > #define SIGXFSZ         34      /* File size limit exceeded (4.2 BSD).  */
> > #define SIGSTKFLT       36      /* Stack fault.  */
> 
> I guess the answer to my question is these signals aren't used,
> so we only support a maximum of 32 signals that can be masked.
> Hopefully, an EINVAL error will be generated if the above signals
> used.

Ah, ok.

We still have the problem of a *stuck* thread using linuxthreads.
Which we don't have a clear solution for...

More debugging is required. Perhaps I'll take a break from TLS glibc
stuff to debug this a bit.

c.

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> We still have the problem of a *stuck* thread using linuxthreads.
> Which we don't have a clear solution for...

It's my belief that expect/tcl has a similar problem, so the problem
likely isn't specific to linuxthreads.  Expect definitely doesn't use
linuxthreads.  This affects GCC and binutils testing so I rate fixing
this as extremely important ;^)

The problem also affects java.  I often have to manually kill various
java processes after a GCC test run completes.  At the moment, locking
isn't atomic in java.  I wonder if we are being bitten by the glibc
routines that still aren't atomic.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> On Tue, Apr 05, 2005 at 09:21:17PM -0400, John David Anglin wrote:
> > > > What's the situation on the following signals: SIGLTHRRES, SIGLTHRCAN
> > > > and SIGLTHRDBG?  I'm not sure but pthread_cond_signal may need SIGLTHRRES.
> > > > Are these signals 37, 38 and 39?
> > > 
> > > yes, we use the same signals. 
> > 
> > It looks as if we have 36 signals which may need to be blocked.  However,
> > _SIGSET_NWORDS is 32.  Is this a problem?
> 
> I don't quite understand what you mean by this? Can you show me the code
> that defines this and where the error might be?

It appears that we have 36 potentially maskabable interrupts but
_SIGSET_NWORDS is defined as if we had 32 (x86 number).

>>From bits/sigaction.h:

    ...
    /* Additional set of signals to be blocked.  */
	__sigset_t sa_mask;
    };

/* Bits in `sa_flags'.  */

>>From bits/sigset.h:

# define _SIGSET_NWORDS (1024 / (8 * sizeof (unsigned long int)))
typedef struct
  {
    unsigned long int __val[_SIGSET_NWORDS];
  } __sigset_t;


>>From bits/signum.h:

/* Signals.  */
#define SIGHUP          1       /* Hangup (POSIX).  */
...
#define SIGXCPU         33      /* CPU limit exceeded (4.2 BSD).  */
#define SIGXFSZ         34      /* File size limit exceeded (4.2 BSD).  */
#define SIGSTKFLT       36      /* Stack fault.  */

#define _NSIG           65      /* Biggest signal number + 1
                                   (including real-time signals).  */

#define SIGRTMIN        (__libc_current_sigrtmin ())
#define SIGRTMAX        (__libc_current_sigrtmax ())

/* These are the hard limits of the kernel.  These values should not be
   used directly at user level.  */
#define __SIGRTMIN      37

I'm wondering if _SIGSET_NWORDS is correctly defined.

I've been trying to match up some defines in a file to add Ada
tasking to GCC for parisc from an x86 file.  I don't know that
there is a problem but the above seemed strange (i.e., SIGXCPU,
SIGXFSZ and SIGSTKFLT don't appear to be maskable on parisc but
they are maskable on x86).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:22580

Hello all,

> Hi pa-ckers
> 
> tried 2.6.12-rc1-pa9 64bit SMP (gcc 3.3.5) with DEBUG_SLAB enabled, got=

> the following BUG:
> LBA version TR4.0 (0x5) found at 0xfffffffffed3c000
> kernel BUG at mm/slab.c:1495!
> Backtrace:
>  [<0000000010114480>] show_stack+0x60/0xf0

One thought about show_stack() (i.e. dump_stack()) :

its code looks like:
void show_stack(struct task_struct *task, unsigned long *s)
{
        struct unwind_frame_info info;

        if (!task) {
                unsigned long sp;
                struct pt_regs *r;

HERE:
                asm volatile ("copy %%r30, %0" : "=3Dr"(sp));
                r =3D (struct pt_regs *)kmalloc(sizeof(struct pt_regs), G=
FP_KERNEL);
                if (!r)
                        return;
...

while #if DEBUG in slab kmalloc will:
static inline kmem_cache_t *kmem_find_general_cachep(size_t size, int gfp=
flags)
{
        struct cache_sizes *csizep =3D malloc_sizes;

#if DEBUG
        /* This happens if someone tries to call  
        * kmem_cache_create(), or __kmalloc(), before
        * the generic caches are initialized.
        */
        BUG_ON(csizep->cs_cachep =3D=3D NULL);
#endif
...

(this special case appends to me when I tried to change BUG_ON() by WARN_=
ON()
in kernel/posix-cpu-timers.c
see <http://cvs.parisc-linux.org/linux-2.6/kernel/posix-cpu-timers.c?rev=3D=
1.3&view=3Dmarkup>
with following 
Badness in run_posix_cpu_timers at /CAD/linux-2.6.12-rc1-pa9-050401/kerne=
l/posi5
Backtrace:
 [<00000000101124e8>] dump_stack+0x18/0x28
 [<000000001015ed20>] run_posix_cpu_timers+0x168/0x1d0
 [<0000000010113648>] timer_interrupt+0xc8/0x178
 [<00000000101170b8>] real32_call+0xe0/0x110
 [<0000000010116624>] pdc_iodc_putc+0x9c/0x150
 [<00000000101686b4>] __do_IRQ+0x94/0x1e0
 [<0000000010116054>] pdc_tod_read+0xac/0x100
 [<0000000010116050>] pdc_tod_read+0xa8/0x100
 [<00000000103e6890>] proc_dodebug+0x0/0x2d0
 [<00000000103e64f0>] rpc_proc_register+0x0/0xb0
 [<00000000103e5de0>] rpc_unlink+0x0/0x1a8
 [<00000000103e5240>] rpc_depopulate+0x0/0x1f0
 [<00000000103e4cb0>] rpc_show_info+0x0/0xe8
 [<00000000103e4618>] rpc_alloc_inode+0x0/0x30
 [<00000000103e3ed0>] content_open+0x0/0xb0
 [<00000000103e35e0>] qword_addhex+0x0/0x110


Kernel Fault: Code=3D26 regs=3D000000001057cbe0 (Addr=3D0000000000000000)=


     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001110 Not tainted
r00-03  0000000000000000 0000000010481e38 0000000010112680 00000000080000=
0f
r04-07  00000000105c0b40 00000000101124e8 000000001057cb60 000000001057c2=
e0
r08-11  0000000000000000 00000000105c9b40 0000000000000000 00000000105d86=
a4
r12-15  0000000000000000 00000000ffffffff 0000000000000000 00000000f04000=
04
r16-19  000000001057c2e0 00000000f000017c 00000000f0000174 00000000105662=
30
r20-23  000000000800000e 00000000000003ea 00000000000003ea 00000000006297=
7c
r24-27  ffffffffffffffff 00000000000000d0 0000000000000000 00000000105c0b=
40
r28-31  0000000000000066 000000001057cbb0 000000001057cbe0 00000000000000=
60
sr0-3   0000000000000000 0000000000000000 0000000000000000 00000000000000=
00
sr4-7   0000000000000000 0000000000000000 0000000000000000 00000000000000=
00

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010176d20 0000000010=
176d24
 IIR: 0f4010d5    ISR: 0000000000000000  IOR: 0000000000000000
 CPU:        0   CR30: 000000001057c000 CR31: 0000000010580000
 ORIG_R28: 0000000000000000   
 IAOQ[0]: kmem_cache_alloc+0x18/0x60
 IAOQ[1]: kmem_cache_alloc+0x1c/0x60
 RP(r2): show_stack+0x80/0xf0 
Kernel panic - not syncing: Kernel Fault

a objdump of slab showing:
0000000000000000 <kmem_cache_alloc>:
   0:   0f c2 12 c1     std rp,-10(,sp)
   4:   73 c4 01 08     std,ma r4,80(sp)
   8:   73 c3 3f 11     std r3,-78(sp)
   c:   db 39 0f e0     extrd,s r25,63,32,r25
  10:   00 01 0e 63     rsm 1,r3
  14:   37 dd 3f a1     ldo -30(sp),ret1 
  18:   0f 40 10 d5     ldd 0(,r26),r21    <=3D=3D=3D=3D
  1c:   0e a0 10 94     ldw 0(,r21),r20
  20:   86 80 20 58     cmpib,=3D 0,r20,54 <kmem_cache_alloc+0x54>
)

Hth,
    Joel


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Subject: Re: [parisc-linux] pthread problems - test program
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Xref: news.gmane.org gmane.linux.ports.parisc:22581

> I found another program that doesn't work on hppa. This one was written
> by Randolph if my memory serves me correctly. I'll have to add it to the
> userspace tests that fail.
> 
> ---
> all: foo.c libfoo.c
> 	gcc -g -shared -c libfoo.c
> 	rm -f libfoo.so
> 	ln -s libfoo.o libfoo.so
> 	gcc -g -o foo foo.c -lfoo -L. -lpthread
> 
> clean:
> 	rm -f *.o
> 	rm -f *.so
> 	rm -f foo

The test can be simplified.  You don't need libfoo.  Just
link foo with -lpthread and it fails.

I see libtcl8.4 is linked against libpthread.so.  This is probably
why 8.3 works better than 8.4.

dave@hiauly6:~/gcc_test/pthr/carlos$ ./foo
Parent = 24778
Exiting on signal from child
Waited for child 24779
Quit (core dumped)

(gdb) bt
#0  __unregister_atfork (dso_handle=0x40184b58)
    at ../linuxthreads/sysdeps/unix/sysv/linux/unregister-atfork.c:28
#1  0x4016ede0 in __pthread_wait_for_restart_signal (self=0x40184b80)
    at pthread.c:1203
#2  0x405e41b8 in _IO_default_xsputn (f=0xbff00b94, data=0x8, n=3220179872)
    at genops.c:477
#3  0x00000000 in ?? ()
    ...

Running under gdb:

dave@hiauly6:~/gcc_test/pthr/carlos$ /usr/bin/gdb foo
GNU gdb 6.3-debian
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "hppa-linux"...Using host libthread_db library "/usr/lib/debug/libthread_db.so.1".

(gdb) handle SIGUSR2 noprint nostop pass
Signal        Stop      Print   Pass to program Description
SIGUSR2       No        No      Yes             User defined signal 2
(gdb) r
Starting program: /home/dave/gcc_test/pthr/carlos/foo
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 24875)]
Parent = 24875
Exiting on signal from child
Waited for child 24878

Program received signal SIGINT, Interrupt.
[Switching to Thread 16384 (LWP 24875)]
0x4016f05c in __pthread_sigsuspend (set=0xbff00dc8)
    at ../linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c:54
    54      ../linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c: No such file or directory.
	    in ../linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c
(gdb) bt
#0  0x4016f05c in __pthread_sigsuspend (set=0xbff00dc8)
    at ../linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c:54
#1  0x4016ede0 in __pthread_wait_for_restart_signal (self=0x40184b80)
    at pthread.c:1203
#2  0x4017081c in __pthread_alt_lock (lock=0x406c2980, self=0x40184b80)
    at restart.h:34
#3  0x4016d480 in *__GI___pthread_mutex_lock (mutex=0x406c2970) at mutex.c:123
#4  0x40662234 in __unregister_atfork (dso_handle=0x40184ac0) at list.h:72
#5  0x4016a930 in __do_global_dtors_aux () from /usr/lib/debug/libpthread.so.0
#6  0x40173bb0 in _fini () from /usr/lib/debug/libpthread.so.0
#7  0x400b6898 in _dl_fini () from /lib/ld.so.1
#8  0x400b6898 in _dl_fini () from /lib/ld.so.1
Previous frame identical to this frame (corrupt stack?)
(gdb) disass 0x4016f04c 0x4016f06c
Dump of assembler code from 0x4016f04c to 0x4016f06c:
0x4016f04c <__pthread_sigsuspend+12>:   ldi 8,r25
0x4016f050 <__pthread_sigsuspend+16>:   copy r19,r4
0x4016f054 <__pthread_sigsuspend+20>:   be,l 100(sr2,r0),%sr0,%r31
0x4016f058 <__pthread_sigsuspend+24>:   ldi b3,r20
0x4016f05c <__pthread_sigsuspend+28>:   copy r4,r19
0x4016f060 <__pthread_sigsuspend+32>:   ldw -54(,sp),rp
0x4016f064 <__pthread_sigsuspend+36>:   bv r0(rp)
0x4016f068 <__pthread_sigsuspend+40>:   ldw,mb -40(,sp),r4

The program always appears stuck at 0x4016f05c, so I assume that
the syscall at 0x4016f054 is hung.  There is definitely a timing
issue involved since the program doesn't fail if I don't tell gdb
how to handle SIGUSR2.  I added the parent printout.

(gdb) disass __pthread_sigsuspend
Dump of assembler code for function __pthread_sigsuspend:
0x4016f040 <__pthread_sigsuspend+0>:    stw rp,-14(,sp)
0x4016f044 <__pthread_sigsuspend+4>:    stw,ma r4,40(,sp)
0x4016f048 <__pthread_sigsuspend+8>:    stw r19,-20(,sp)
0x4016f04c <__pthread_sigsuspend+12>:   ldi 8,r25
0x4016f050 <__pthread_sigsuspend+16>:   copy r19,r4
0x4016f054 <__pthread_sigsuspend+20>:   be,l 100(sr2,r0),%sr0,%r31
0x4016f058 <__pthread_sigsuspend+24>:   ldi b3,r20
0x4016f05c <__pthread_sigsuspend+28>:   copy r4,r19
0x4016f060 <__pthread_sigsuspend+32>:   ldw -54(,sp),rp
0x4016f064 <__pthread_sigsuspend+36>:   bv r0(rp)
0x4016f068 <__pthread_sigsuspend+40>:   ldw,mb -40(,sp),r4
End of assembler dump.
(gdb) info reg
flags          0x0      0
r1             0x40661ee7       1080434407
rp             0x4016ede3       1075244515
r3             0x40184b58       1075333976
r4             0x40185c28       1075338280
r5             0x40184b80       1075334016
r6             0x40000328       1073742632
r7             0xbff00bd4       3220179924
r8             0xbff00be0       3220179936
r9             0x1      1
r10            0xbff00bd8       3220179928
r11            0x400bf354       1074525012
r12            0x400d04b8       1074595000
r13            0x2      2
r14            0x400d0d70       1074597232
r15            0xbff00bd8       3220179928
r16            0x400d0724       1074595620
r17            0xbff00bd4       3220179924
r18            0x0      0
r19            0x40185c28       1075338280
r20            0xb3     179
r21            0x1b     27
r22            0xbff00dcc       3220180428
---Type <return> to continue, or q <return> to quit---
r23            0x0      0
r24            0xbff00dc8       3220180424
r25            0x8      8
r26            0xbff00dc8       3220180424
dp             0x20e84  134788
ret0           0xfffffffc       4294967292
ret1           0x37d    893
sp             0xbff00f00       3220180736
r31            0x4016f05f       1075245151
sar            0x1b     27
pcoqh          0x4016f05f       1075245151
pcsqh          0x0      0
pcoqt          0x4016f063       1075245155
pcsqt          0x0      0
eiem           0x0      0
iir            0x0      0
isr            0x0      0
ior            0x0      0
ipsw           0xb      11
goto           0x0      0
sr4            0x0      0
sr0            0x0      0
sr1            0x0      0
---Type <return> to continue, or q <return> to quit---
sr2            0x0      0
sr3            0x0      0
sr5            0x0      0
sr6            0x0      0
sr7            0x0      0
cr0            0x0      0
cr8            0x0      0
cr9            0x0      0
ccr            0x0      0
cr12           0x0      0
cr13           0x0      0
cr24           0x0      0
cr25           0x0      0
cr26           0x0      0
mpsfu_high     0x0      0
mpsfu_low      0x0      0
mpsfu_ovflo    0x0      0
pad            0x0      0
fpsr           0x0      0
fpe1           0x0      0
fpe2           0x0      0
fpe3           0x0      0
fpe4           0x0      0
---Type <return> to continue, or q <return> to quit---
fpe5           0x0      0
fpe6           0x0      0
fpe7           0x0      0

Does this help?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] pthread problems - test program
Date: Wed, 6 Apr 2005 16:25:17 -0400
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Wed, Apr 06, 2005 at 04:12:31PM -0400, John David Anglin wrote:
> > I found another program that doesn't work on hppa. This one was written
> > by Randolph if my memory serves me correctly. I'll have to add it to the
> > userspace tests that fail.
> > 
> > ---
> > all: foo.c libfoo.c
> > 	gcc -g -shared -c libfoo.c
> > 	rm -f libfoo.so
> > 	ln -s libfoo.o libfoo.so
> > 	gcc -g -o foo foo.c -lfoo -L. -lpthread
> > 
> > clean:
> > 	rm -f *.o
> > 	rm -f *.so
> > 	rm -f foo
> 
> The test can be simplified.  You don't need libfoo.  Just
> link foo with -lpthread and it fails.
> 
> I see libtcl8.4 is linked against libpthread.so.  This is probably
> why 8.3 works better than 8.4.
> 
> dave@hiauly6:~/gcc_test/pthr/carlos$ ./foo
> Parent = 24778
> Exiting on signal from child
> Waited for child 24779
> Quit (core dumped)
> 
> (gdb) bt
> #0  __unregister_atfork (dso_handle=0x40184b58)
>     at ../linuxthreads/sysdeps/unix/sysv/linux/unregister-atfork.c:28
> #1  0x4016ede0 in __pthread_wait_for_restart_signal (self=0x40184b80)

I just want to comment first that in Randolph's testcase we are also
waiting for a restart signal as we are here, but we never receive the
signal.

We tracked this down to some "dequeue" from the signal waiting queue
that just seemed to return zero as if the thread had already been
dequeued. Perhaps this *is* all just a sign of missing atomic
operations.

I'm adding them in right now, I'll run this test under the new glibc and
see what happens.

c.

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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] pthread problems - test program
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On Wed, Apr 06, 2005 at 04:12:31PM -0400, John David Anglin wrote:
> > I found another program that doesn't work on hppa. This one was written
> > by Randolph if my memory serves me correctly. I'll have to add it to the
> > userspace tests that fail.
> > 
> > ---
> > all: foo.c libfoo.c
> > 	gcc -g -shared -c libfoo.c
> > 	rm -f libfoo.so
> > 	ln -s libfoo.o libfoo.so
> > 	gcc -g -o foo foo.c -lfoo -L. -lpthread
> > 
> > clean:
> > 	rm -f *.o
> > 	rm -f *.so
> > 	rm -f foo
> 
> The test can be simplified.  You don't need libfoo.  Just
> link foo with -lpthread and it fails.
> 
> I see libtcl8.4 is linked against libpthread.so.  This is probably
> why 8.3 works better than 8.4.
> 
> Does this help?

It helps in the sense that we can distill the testcase down futher. It's
clearly some race in the resume suspend path, but the problem eludes me
right now.

Distilling this into a non-linuxthread testcase is the utmost priority.

c.

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On Wed, Apr 06, 2005 at 02:37:49PM -0400, John David Anglin wrote:
> > We still have the problem of a *stuck* thread using linuxthreads.
> > Which we don't have a clear solution for...
> 
> It's my belief that expect/tcl has a similar problem, so the problem
> likely isn't specific to linuxthreads.  Expect definitely doesn't use
> linuxthreads.  This affects GCC and binutils testing so I rate fixing
> this as extremely important ;^)
> 
> The problem also affects java.  I often have to manually kill various
> java processes after a GCC test run completes.  At the moment, locking
> isn't atomic in java.  I wonder if we are being bitten by the glibc
> routines that still aren't atomic.

We are missing all sorts of atomic support in libc.

Adding support would require a forced min_kernel_version bump up to the
point where light-weight syscalls (CAS) exists, and the DoS for the
gateway page was fixed.

Would you like me to go ahead and do this, then roll a new glibc deb?

Here is a brief summary of what glibc needs:

===================
Atomic Definitions:

sysdeps/hppa/atomicity.h
  exchange_and_add
  atomic_add
  compare_and_swap
	= These three are phased out in favour of atomic.h

sysdeps/hppa/bits/atomic.h
  atomic_compare_and_exchange_val_acq
  atomic_compare_and_exchange_bool_acq
	= New atomic requirements for glibc

===================
Atomic Extensions using CAS:

include/atomic.h
  = This file builds everything based on
    atomic_compare_and_exchange_bool_acq

sysdeps/generic/bits/atomic.h
  = hppa uses this file right now.
  = Would have bee nice to have gotten a warning
    here.
  = non-atomic versions used.

===================
Atomic Uses:

Range from everything to the wakeup of threads from a queue using
atomic_increment and atomic_decrement (evaluates to a variant of
atomic_compare_and_exchagne_val_acq from include/atomic.h), to the 
change of a value in a semaphore.

===================

I've neglected this because in the past the required CAS didn't exist
and it was impossible to do in userspace. Time to test it all out.

c.



c.

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On Wed, Apr 06, 2005 at 02:37:49PM -0400, John David Anglin wrote:
> > We still have the problem of a *stuck* thread using linuxthreads.
> > Which we don't have a clear solution for...
> 
> It's my belief that expect/tcl has a similar problem, so the problem
> likely isn't specific to linuxthreads.  Expect definitely doesn't use
> linuxthreads.  This affects GCC and binutils testing so I rate fixing
> this as extremely important ;^)

We might have multiple problems :)

c.
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> > #1  0x4016ede0 in __pthread_wait_for_restart_signal (self=0x40184b80)
> 
> I just want to comment first that in Randolph's testcase we are also
> waiting for a restart signal as we are here, but we never receive the
> signal.

I believe that __pthread_wait_for_restart_signal is called twice in
the testcase.  We hang the second time around.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> 0x4016f05c in __pthread_sigsuspend (set=0xbff00dc8)
>     at ../linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c:54
>     54      ../linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c: No such file or directory.
> 	    in ../linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c
> (gdb) bt
> #0  0x4016f05c in __pthread_sigsuspend (set=0xbff00dc8)
>     at ../linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c:54
> #1  0x4016ede0 in __pthread_wait_for_restart_signal (self=0x40184b80)
>     at pthread.c:1203
> #2  0x4017081c in __pthread_alt_lock (lock=0x406c2980, self=0x40184b80)
>     at restart.h:34
> #3  0x4016d480 in *__GI___pthread_mutex_lock (mutex=0x406c2970) at mutex.c:123
> #4  0x40662234 in __unregister_atfork (dso_handle=0x40184ac0) at list.h:72
> #5  0x4016a930 in __do_global_dtors_aux () from /usr/lib/debug/libpthread.so.0
> #6  0x40173bb0 in _fini () from /usr/lib/debug/libpthread.so.0
> #7  0x400b6898 in _dl_fini () from /lib/ld.so.1
> #8  0x400b6898 in _dl_fini () from /lib/ld.so.1

I think there is a race condition between the parent and child regarding
the lock used for __unregister_atfork.  As a result, the parent suspends
itself waiting for a restart signal that never gets generated.  If I add
an alarm(2) call to exit_on_signal, then parent exits when the alarm occurs.

Based on my testing, we get a SIGCHLD signal delivered before the
SIGUSR2, and no restart after the wait:

dave@hiauly6:~/gcc_test/pthr/carlos$ ./foo
Parent = 26338
restart signal 18
Exiting on signal from child
Waited for child 26339

Don't fully understand the use of the __status field in
struct _pthread_fastlock but the parent suspends when it's nonzero.
It's set twice at 0x401707c0:

(gdb) r
The program being debugged has been started already.
Start it from the beginning? (y or n) y

Starting program: /home/dave/gcc_test/pthr/carlos/foo
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 26626)]
Parent = 26626
[Switching to Thread 16384 (LWP 26626)]

Breakpoint 5, 0x401707c0 in __pthread_alt_lock (lock=0x406c2980, self=0x0)
    at spinlock.c:374
374     spinlock.c: No such file or directory.
    in spinlock.c
(gdb) bt
#0  0x401707c0 in __pthread_alt_lock (lock=0x406c2980, self=0x0)
    at spinlock.c:374
#1  0x4016d480 in *__GI___pthread_mutex_lock (mutex=0x406c2970) at mutex.c:123
#2  0x4016dad8 in __pthread_fork (b=0x406c2970) at ptfork.c:33
#3  0x4062011c in __libc_fork ()
    at ../linuxthreads/sysdeps/unix/sysv/linux/fork.c:40
#4  0x000109d4 in main () at foo.c:42
(gdb) c
Continuing.
Child = 26627
Parent done.

Breakpoint 5, 0x401707c0 in __pthread_alt_lock (lock=0x406c2980, self=0x0)
    at spinlock.c:374
374     in spinlock.c
(gdb) c
Continuing.
restart signal 18

Breakpoint 3, exit_on_signal (signr=17) at foo.c:17
17        fprintf(stderr, "Exiting on signal from child\n");
(gdb) c
Continuing.
Exiting on signal from child
Waited for child 26627

Program exited normally.

With the break 5 enabled, the __status field is 0 when exit_on_signal
is entered.  When it's disabled, the __status is 1 when exit_on_signal
is entered and the parent fails to to terminate.  When 5 is disabled,
we also don't get the Parent done message.

The second break 5 occurs here:

Breakpoint 5, 0x401707c0 in __pthread_alt_lock (lock=0x406c2980, self=0x0)
    at spinlock.c:374
374     in spinlock.c
(gdb) bt
#0  0x401707c0 in __pthread_alt_lock (lock=0x406c2980, self=0x0)
    at spinlock.c:374
#1  0x4016d480 in *__GI___pthread_mutex_lock (mutex=0x406c2970) at mutex.c:123
#2  0x40662234 in __unregister_atfork (dso_handle=0x40184ac0) at list.h:72
#3  0x4016a930 in __do_global_dtors_aux () from /usr/lib/debug/libpthread.so.0
#4  0x40173bb0 in _fini () from /usr/lib/debug/libpthread.so.0
#5  0x400b6898 in _dl_fini () from /lib/ld.so.1
#6  0x400b6898 in _dl_fini () from /lib/ld.so.1

Here we are unregistering the fork handlers.  I have the feeling
that we die when the SIGUSR2 signal is taken while the __status
field is 1 in the first attempt at doing __unregister_atfork.

It seems that the problem is with exit when it's used in a
signal handler receiving signals from children.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hello Matthew,

> 
> On Wed, Apr 06, 2005 at 06:27:53PM +0200, Joel Soete wrote:
> > I find a spare (antistaic pakage still sealed :-) ) J3515 hsc (iirc g=
sc)
> > nic.
> > 
> > I know I could plug in the d380 I get for additional test but could i=
t
> also
> > be compatible in a C110 model (I try to have a look in hw db and C110=

owner's
> > guide but not find this info)?
> > 
> > Any way would it be supported on the D with a parisc-linux kernel?
> 
> It's a Tulip + Dino on a card.  It ought to work, but I've had trouble
with
> it on a K-class.  Please try it ;-)
> 
I installed it and tryied to boot with my c110 2.6.12-rc-pa config but it=

doesn't seems to see it (only eth0 in the boot logs).
I presume that I would need to add some more nic support to my kernel con=
fig
because otc the sarge d-i netinstall cd presents me well two nic:
eth0 Digital ...
eth1 lasi...

unfortunately when this cd install was finished, the reboot on the main d=
isk
hung when loading the tulip module :-(
...
Checking root file system...
fsck 1.35 (28-Feb-2004)
/: clean, 10962/783360 files, 240240/1566306 blocks
EXT3 FS on sda5, internal journal
System time was Thu Apr  7 16:39:26 UTC 2005.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Thu Apr  7 16:39:28 UTC 2005.
Cleaning up ifupdown...done.
Calculating module dependencies... done.
Loading modules...
    lasi700
    lasi_82596
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xffd07000, IRQ 87
eth0: 82596 at 0xffd07000, 08 00 09 D2 89 15 IRQ 87.
    sd_mod
    sr_mod
    tulip

Was it the kind of pb which you encountered?

Thanks,
    Joel


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After thinking a bit more about this, I'm convinced that the problem
is a race between the registration of fork handlers and the delivery of
the signal.  If the signal handler is called before the registration
is complete, the code suspends when the signal handler exits and
tries to unregister the fork handlers.  The test works if the signal
is delayed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] pthread problems - test program
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> Since technically this is not possible, the mutex .lock in __fork_block
> makes sure that such a thing can't occur.

The program hangs doesn't it?

If the handler registration is done before the fork, I'll believe you.
However, if they are done after the fork, the lock isn't going to help.
The same problem could occur if a signal is taken during deregistration
when exiting from main.

A signal can be taken while the mutex is locked, or as it appears when
__status is 1.  Since the signal handler does an exit, the main code
never runs again and there is no way it can change the lock or __status.
So, we end up suspending the task while its trying to exit (i.e.,
deadlock).

If the signal handler returns instead of exits, there isn't a problem.
If the child delays sending the signal a bit, there isn't a problem.

In the presence of signals, I believe that adding and removing
handlers run at exit needs to be atomic.  A simple mutex isn't
sufficient as a thread or task may die in the critical region.
Even if there is a mutex recovery mechanism, a handler might get
run twice, etc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Since technically this is not possible, the mutex .lock in __fork_block
> makes sure that such a thing can't occur.

Just wondering if this has to do with rt signals versus old style linux
signals (ia64 seems to define some wrappers).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] pthread problems - test program
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Thu, Apr 07, 2005 at 10:56:00PM -0400, John David Anglin wrote:
> After thinking a bit more about this, I'm convinced that the problem
> is a race between the registration of fork handlers and the delivery of
> the signal.  If the signal handler is called before the registration
> is complete, the code suspends when the signal handler exits and
> tries to unregister the fork handlers.  The test works if the signal
> is delayed.

If you can prove that those mutex's aren't working properly then we have
a case :)

Since technically this is not possible, the mutex .lock in __fork_block
makes sure that such a thing can't occur.

---

During the handler registration the mutex is taken, and only when
complete released. The __pthread_fork code must take that mutex before
calling the prepared handlers.

Look at:
linuxthreads/ptfork.c 
	(__pthread_fork)
linuxthreads/sysdeps/unix/sysv/linux/register-atfork.c
	(__register_atfork)


The lock is via __libc_lock_lock, which is:
	(__libc_maybe_call2 (pthread_mutex_lock, (&(NAME)), 0));

Which is pthread_mutex_lock, which could call:
	__pthread_lock(&mutex->__m_lock, NULL);
	__pthread_alt_lock(&mutex->__m_lock, NULL);
	__pthread_lock(&mutex->__m_lock, self);
	__pthread_alt_lock(&mutex->__m_lock, self);

The __pthread_lock is rather complex.

Seems to rely upon:
	__pthread_acquire(&lock->__spinlock);

Which relies upon:
	testandset(spinlock);

Which relies upon all the ldcw code we worked out.

*** WARNING ***

What am I missing?

c.


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From: Carlos O'Donell <carlos@baldric.uwo.ca>
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Subject: Re: [parisc-linux] pthread problems - test program
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On Sat, Apr 09, 2005 at 01:58:52AM -0400, Carlos O'Donell wrote:
> On Fri, Apr 08, 2005 at 06:54:20PM -0400, John David Anglin wrote:
> > > Since technically this is not possible, the mutex .lock in __fork_block
> > > makes sure that such a thing can't occur.
> > 
> > The program hangs doesn't it?
> 
> I just realized the program doesn't call pthread_atfork and it still
> hangs. Though it doesn't hang on i386. Is there a relied upon semantic
> we are missing here?

The following hangs and I don't really know why... maybe I'm just
sleepy :)

--- 
#include <stdio.h>
#include <signal.h>
#include <sys/types.h>

void exit_on_signal(int signr)
{
  fprintf(stderr, "Thread %d, exiting on signal %d.\n", getpid(), signr); 
  exit(0);
}

int main(void)
{
  pid_t parent = getpid();
  printf("Parent thread is %d\n",parent);
  signal(SIGUSR2,exit_on_signal);
  if (fork() == 0) 
    {
      /* child kills parent */
      printf("Child thread is %d\n",getpid());
      kill(parent, SIGUSR2);
    } 
  else 
    {
      printf("Parent done.\n");
    }
  exit(0);
}
---

c.

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On Fri, Apr 08, 2005 at 08:13:21PM -0400, John David Anglin wrote:
> > Since technically this is not possible, the mutex .lock in __fork_block
> > makes sure that such a thing can't occur.
> 
> Just wondering if this has to do with rt signals versus old style linux
> signals (ia64 seems to define some wrappers).

libc or kernel?

c.

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John David Anglin wrote:
>>It's also quite surprising the 32bit kernel is unaffected.
> 
well nothing new since: <http://lists.parisc-linux.org/pipermail/parisc-linux/2005-March/026055.html>

> 
> As a plug for my put_user patch, I recall that there is at least one
> xfs ioctl that involves putting a long int to userspace.
> 
Yes iirc that was (in 2.4) one of the reason I asked help to Randolph to introduce put_user_asm64() for 32bit kernel.

Joel
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> > I just realized the program doesn't call pthread_atfork and it still
> > hangs. Though it doesn't hang on i386. Is there a relied upon semantic
> > we are missing here?
> 
> The following hangs and I don't really know why... maybe I'm just
> sleepy :)

Did you link with -lpthread?  The deregistration is done as a destructor
for the library.  Not sure about the initial registration.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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One more thing - in my test i've seen the program somewhat randomly get
killed by SIGSEGV or SIGILL. Sometimes, the "count" variable gets
corrupted. I wonder if this is also the same problem Dave sees with
"random" crashes during gcc builds.

randolph
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> > According to programming notes on p427,
> 
> Joel,
> Which book/document are you referencing the page number for?
> 
> Are you referring to the programming note on page "F-5" of PA2.0
> Arch book (by Jerry Kane)?
> 
> If so, ISTR those contraints are only when clearing Q-bit (bit 3).
> We have such code in entry.S.
> 
> Messing with I-bit (bit 0) should be safe. 

It think the insns also have to be followed by 7 palindromic NOP
insns when the E-bit is changed (endian).

I thought it was clear that the segfaults were occuring because
a null pointer was being deferenced.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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> > Just wondering if this has to do with rt signals versus old style linux
> > signals (ia64 seems to define some wrappers).
> 
> libc or kernel?

libc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> what's up with gcc-3.3.x?
> I never reach to complet the glibc build with gcc-3.4 (see detailed investigation in 
> <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17471>), gcc-3.5 at this time (now gcc-4) seems to solve this pb even thought there was 
> some other pb to fix with this new compiler ;-S (but not enough time to investigate, sorry)

I'm not aware of any GCC PRs related to this.  A few PA specific bug fixes
have been back ported to 3.3 and 3.4.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > I'm not aware of any GCC PRs related to this.
> Sorry iirc those new pb wouldn't have to be the object of gcc pr but would more need some small changes in the glibc code to take 
> into account the new gcc-4.x (may be some more always_use arrtibute?)
> 
> > A few PA specific bug fixes
> > have been back ported to 3.3 and 3.4.
> >
> well mentioned pr #17471 was 2.3.3 glibc and 3.4 gcc related; today 2.3.5 is out, if I find some more free time I will try this new 
> 2.3.5 glibc with new 4.? gcc

Well, your analysis in 17471 didn't convince me that a gcc code generation
bug was involved.  I believe that if you try the change below that glibc
will build with 3.3 and 3.4.  There was a warning generated by GCC.

I thought this was fixed in glibc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--- dl-machine.h.orig	2004-10-22 20:01:03.000000000 -0700
+++ dl-machine.h	2004-10-22 21:32:30.000000000 -0700
@@ -260,6 +260,7 @@
 
 #define RTLD_START \
 /* Set up dp for any non-PIC lib constructors that may be called.  */	\
+static struct link_map *set_dp (struct link_map *) __attribute__ ((used));\
 static struct link_map *						\
 set_dp (struct link_map *map)						\
 {									\
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John David Anglin wrote:
>>what's up with gcc-3.3.x?
>>I never reach to complet the glibc build with gcc-3.4 (see detailed investigation in 
>><http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17471>), gcc-3.5 at this time (now gcc-4) seems to solve this pb even thought there was 
>>some other pb to fix with this new compiler ;-S (but not enough time to investigate, sorry)
> 
> 
> I'm not aware of any GCC PRs related to this.
Sorry iirc those new pb wouldn't have to be the object of gcc pr but would more need some small changes in the glibc code to take 
into account the new gcc-4.x (may be some more always_use arrtibute?)

> A few PA specific bug fixes
> have been back ported to 3.3 and 3.4.
>
well mentioned pr #17471 was 2.3.3 glibc and 3.4 gcc related; today 2.3.5 is out, if I find some more free time I will try this new 
2.3.5 glibc with new 4.? gcc

Thanks for feedback,
     Joel
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> If it can compile this then it's cool. Normal gcc/binutils chokes but
> the tls-toolchain works just fine :)
> 
> Please update your documentation, the symbols used for relocation don't
> match (e.g. $tls_dtlndx$ is really $tls_gdix$)?

Which documentation are you using? Please work off of
http://wiki.parisc-linux.org/ThreadLocalStorage
I've been keeping that up to date as I find bugs in the original design.

Once we get it sorted out we can go back to fix the PDF.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Everything works fine, up til the dreaded STI -switchover. So, it boots, 
but video isn't initialized right. Let's see: I'm using tty0, with 
monitor type 3 (1280x1024 Vesa), using graphics3.

Of course, it worked fine with kernel 2.4.x.

Suggestions?


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Subject: Re: [parisc-linux] pthread problems - test program
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> On Sat, Apr 09, 2005 at 01:58:52AM -0400, Carlos O'Donell wrote:
> > On Fri, Apr 08, 2005 at 06:54:20PM -0400, John David Anglin wrote:
> > > > Since technically this is not possible, the mutex .lock in __fork_block
> > > > makes sure that such a thing can't occur.
> > > 
> > > The program hangs doesn't it?
> > 
> > I just realized the program doesn't call pthread_atfork and it still
> > hangs. Though it doesn't hang on i386. Is there a relied upon semantic
> > we are missing here?
> 
> The following hangs and I don't really know why... maybe I'm just
> sleepy :)

I think it all comes down to the timing of the signal.

(gdb) r
The program being debugged has been started already.
Start it from the beginning? (y or n) y

Starting program: /home/dave/gcc_test/pthr/carlos/foo
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 1051)]
Parent = 1051

Program received signal SIGUSR2, User defined signal 2.
[Switching to Thread 16384 (LWP 1051)]
0x4016db24 in __pthread_fork (b=0x406c2970) at ptfork.c:46
46      ptfork.c: No such file or directory.
        in ptfork.c
(gdb) p *((struct _pthread_fastlock *)0x406c2980)
$33 = {__spinlock = {lock = {1, 1, 1, 1}}, __status = 1}

or

Breakpoint 4, exit_on_signal (signr=17) at foo.c:17
17        fprintf(stderr, "Exiting on signal from child\n");
(gdb) bt
#0  exit_on_signal (signr=17) at foo.c:17
#1  0x40171e80 in __pthread_sighandler (signo=17, ctx=0x0) at sighandler.c:39
#2  <signal handler called>
#3  0x4016db24 in __pthread_fork (b=0x406c2970) at ptfork.c:46
#4  0x4062011c in __libc_fork ()
    at ../linuxthreads/sysdeps/unix/sysv/linux/fork.c:40
    #5  0x000108f4 in main () at foo.c:34
(gdb) p *((struct _pthread_fastlock *)0x406c2980)
$34 = {__spinlock = {lock = {1, 1, 1, 1}}, __status = 1}

If you look, you will see that __pthread_alt_lock has obtained a
lock with __status = 0, set __status to 1, then released the lock.
We then get the signal with __status == 1.  When the signal handler
exits with exit(0), __cxa_finalize tries to deregister the fork
handlers.  When it gets the lock, __status is 1.  This causes
the process to suspend itself.

The same thing could occur while the lock is taken.  In that case,
I think the process would spin trying to acquire the lock.

I number of other things to note.  If the signal handler uses
_exit() or _Exit(), the program doesn't hang.  If exit() is called
twice, the behavior is undefined.  I would argue that we don't call
exit twice but that's timing depend with the current testcase.
exit() isn't listed as async-signal-safe, so it's probably not
legit to call it from a signal handler.  Thus, this isn't a bug.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

PS: I think the ldcw_align macro can be improved.  It looks like GCC
is treating the pointer as volatile and generating icky code.

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> Still tacking:

Hmm.... I guess I must be using slightly different sources, and I see
different problems....

I'm using:
binutils CVS HEAD (20050409)
gcc-4.0-20050402 (ftp'ed)
glibc CVS HEAD (20050409)

First of all, the patches seem to be out of date. I've updated the
binutils and gcc ones.

http://www.parisc-linux.org/~tausq/hppa-tls-gcc.diff
http://www.parisc-linux.org/~tausq/hppa-tls-binutils.diff

I find some other issues with the glibc build. Carlos, a few of your
patches are malformed. They have CVS conflict markers in them.. :)

Right now my build fails when building tst-tlsmod14a.c with a gcc ICE. I
think my gcc patches are broken (no surprise there...)

I'll try to take a closer look at the gcc failure. The failure looks
like this (simplified to a small test program):

$ /home/tausq/tls/bin/gcc -O2 -fPIC -c tlstst.c
tlstst.c: In function 'in_dso1':
tlstst.c:21: error: unable to find a register to spill in class 'R1_REGS'
tlstst.c:21: error: this is the insn:
(insn 26 20 23 0 (set (reg:SI 28 %r28 [106])
        (plus:SI (reg:SI 19 %r19)
            (high:SI (symbol_ref/v/f:SI ("*.LC0") [flags 0x2] <string_cst 0x400b8780>)))) 46 {*pa.md:2717} (nil)
    (nil))
tlstst.c:21: confused by earlier errors, bailing out

Only happens with -fPIC. Likely I'm doing the rtl wrong in
legitimize_tls_address ()

tlstst.c is at http://www.parisc-linux.org/~tausq/tlstst.c

btw, Carlos, are you building glibc with linuxthreads or nptl when you
enable TLS? If I use nptl I get a lot of build errors very early in the
build process.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Matthew Wilcox wrote:

>On Sun, Apr 10, 2005 at 10:17:08AM -0500, Bryan W. Headley wrote:
>  
>
>>Everything works fine, up til the dreaded STI -switchover. So, it boots, 
>>but video isn't initialized right. Let's see: I'm using tty0, with 
>>monitor type 3 (1280x1024 Vesa), using graphics3.
>>
>>Of course, it worked fine with kernel 2.4.x.
>>    
>>
>
>What graphics card are you using?
>
>  
>
Watching 2.4.20 boot, it says,

16. U2-IOA BC GSC+ Port (7) at 0xf3fbf000 [8/63], versions 0x501, 0x1, 
0xc,  add
itional addresses: 0xf3f80000
17. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0x7, 0xb
18. Coral SGC Graphics (10) at 0xf4000000 [10/16], versions 0x4, 0x0, 0x77
19. U2-IOA BC GSC+ Port (7) at 0xf3fff000 [10/63], versions 0x501, 0x1, 0xc

And later says, STI device: HPA4071B_LZ

I don't know if this is useful, but the fact that there is nothing in 
graphics0 .. graphics2 an issue?


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> Matthew Wilcox wrote:
>
>>On Sun, Apr 10, 2005 at 10:17:08AM -0500, Bryan W. Headley wrote:
>>
>>
>>>Everything works fine, up til the dreaded STI -switchover. So, it boots,
>>>but video isn't initialized right. Let's see: I'm using tty0, with
>>>monitor type 3 (1280x1024 Vesa), using graphics3.
>>>
>>>Of course, it worked fine with kernel 2.4.x.
>>>
>>>
>>
>>What graphics card are you using?
>>
>>
>>
> Watching 2.4.20 boot, it says,
>
> 16. U2-IOA BC GSC+ Port (7) at 0xf3fbf000 [8/63], versions 0x501, 0x1,
> 0xc,  add
> itional addresses: 0xf3f80000
> 17. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0x7,
> 0xb
> 18. Coral SGC Graphics (10) at 0xf4000000 [10/16], versions 0x4, 0x0, 0x77
> 19. U2-IOA BC GSC+ Port (7) at 0xf3fff000 [10/63], versions 0x501, 0x1,
> 0xc
>
> And later says, STI device: HPA4071B_LZ
>
> I don't know if this is useful, but the fact that there is nothing in
> graphics0 .. graphics2 an issue?

No, the graphics0 vs. graphics2 thing shouldn't make any difference at all.
What kernel is Sarge using - Helge Deller submitted some fixes for Hyperbowl
in 2.6 a while back, but I'd have thought they'd have made it into Debian
by now.

I sent Helge a Hyperbowl to help him debug (not one with the Z board, just
a plain 4071B), but it sounded like he was too busy with other stuff to
hack on it right now.

Does the Hyperbowl support double buffering (can't remember off hand) and
if so, is it enabled? If its enabled, turn it off - it won't work.

-Andy
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On Sat, Apr 09, 2005 at 02:10:49AM +0200, Thibaut VARENE wrote:
> Just for the records:
>
> while trying to debug the XFS issue on my J6k, here what i noticed:
>
> 32bit kernel: no bug

Sorry, though my j6k did not panic with 32-bit kernel, there is
definitely some XFS bug(s?).  Test output and details follow.

grundler <511>uname -a
Linux gggj6k 2.6.12-rc2-pa1 #5 SMP Sun Apr 10 14:13:59 PDT 2005 parisc GNU/Linux

That's despite sym2 using I/O Port space:
	CONFIG_SCSI_SYM53C8XX_IOMAPPED=y

I got alot (> 500 linus scrollback) of the following on console:

0x0: ed 41 00 00 00 10 00 00 a0 c4 59 42 4c ab 26 42
Filesystem "sdb3": XFS internal error xfs_da_do_buf(2) at line 2271 of file fs/4
Backtrace:
 [<1027d514>] xfs_da_do_buf+0x354/0x754
 [<1027d974>] xfs_da_read_buf+0x2c/0x38
 [<1028157c>] xfs_dir2_block_lookup_int+0x74/0x1fc
 [<1028146c>] xfs_dir2_block_lookup+0x1c/0xb8
 [<1027fd30>] xfs_dir2_lookup+0xc8/0x140
 [<102ad50c>] xfs_dir_lookup_int+0x50/0x118
 [<102b26a8>] xfs_lookup+0x68/0xac
 [<102c0894>] linvfs_lookup+0x60/0xa4
 [<1019e8d8>] __lookup_hash+0xc0/0xf8
 [<1019fa58>] lookup_create+0x68/0xcc
 [<1019ff1c>] sys_mkdir+0x78/0x134
 [<1010e178>] syscall_exit+0x0/0x14

And then the last console output was:
0x0: 58 44 32 44 0e 58 01 a8 07 c8 00 20 09 50 00 20
Filesystem "sdb3": XFS internal error xfs_dir2_block_addname at line 128 of fil4
Backtrace:
 [<10281124>] xfs_dir2_block_addname+0x6c0/0x6d4
 [<1027fc14>] xfs_dir2_createname+0x124/0x178
 [<102b3ee8>] xfs_mkdir+0x484/0x6e4
 [<102c07b8>] linvfs_mknod+0x1d0/0x210
 [<1019fe78>] vfs_mkdir+0x94/0xc0
 [<1019ff68>] sys_mkdir+0xc4/0x134
 [<1010e178>] syscall_exit+0x0/0x14

xfs_force_shutdown(sdb3,0x8) called from line 1091 of file fs/xfs/xfs_trans.c. c
Filesystem "sdb3": Corruption of in-memory data detected.  Shutting down filesy3
Please umount the filesystem, and rectify the problem(s)
SMP CALL FUNCTION TIMED OUT! (cpu=1), try 1


My test was "time rsync -aWx --stats / /mnt" with two disks:

grundler@gggj6k:~$ lsscsi
[1:0:5:0]    disk    HP       18.2GB C 80-D94N D94N  /dev/sda
[1:0:6:0]    disk    SEAGATE  ST318203LC       0001  /dev/sdb
grundler@gggj6k:~$ df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda3             16911576  13625088   2427416  85% /
tmpfs                  1812796         0   1812796   0% /dev/shm
/dev/sda1                85528     28487     52625  36% /boot
/dev/sdb3             17171264  13671156   3500108  80% /mnt

Ext3 on sda3 and freshly made "mkfs.xfs -f /dev/sdb3":
	/dev/sda3 on / type ext3 (rw,errors=remount-ro)


The rsync complained *alot* (> 500 lines of scrollback) about:
rsync: stat "/mnt/home/tftpboot/pa8800/var/spool/postfix/deferred/8" failed: Input/output error (5)

rsync stats output:

Number of files: 394227
Number of files transferred: 349625
Total file size: 12845404686 bytes
Total transferred file size: 12845269080 bytes
Literal data: 12845327899 bytes
Matched data: 0 bytes
File list size: 7360585
Total bytes sent: 12869390640
Total bytes received: 6992520

sent 12869390640 bytes  received 6992520 bytes  5379729.75 bytes/sec
total size is 12845404686  speedup is 1.00
rsync error: some files could not be transferred (code 23) at main.c(702)

real    39m52.694s
user    5m52.069s
sys     7m34.079s


hth,
grant
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On Sun, Apr 10, 2005 at 10:57:47PM -0600, Grant Grundler wrote:
> Sorry, though my j6k did not panic with 32-bit kernel, there is
> definitely some XFS bug(s?).  Test output and details follow.

Just for comparison, I ran the same workload on ext3 and it worked fine.
Started with "mke2fs /dev/sdb3; mount /dev/sdb3 /mnt" and then ran
my pet test-of-the-week again:

root@gggj6k:~# time rsync -aWx --stats / /mnt

Number of files: 394228
Number of files transferred: 349626
Total file size: 12845690938 bytes
Total transferred file size: 12845555332 bytes
Literal data: 12845560371 bytes
Matched data: 0 bytes
File list size: 7360607
Total bytes sent: 12869623206
Total bytes received: 6992540

sent 12869623206 bytes  received 6992540 bytes  9908900.15 bytes/sec
total size is 12845690938  speedup is 1.00

real    21m39.937s
user    5m47.908s
sys     5m50.986s
root@gggj6k:~# 


"iostat 10" on another login reported pretty impressive numbers at
times like for this 30 second period (rsync says avg is 1/4th of this):

avg-cpu:  %user   %nice    %sys %iowait   %idle
          27.54    0.00   24.04   28.49   19.94

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda             208.60     43289.60       100.80     432896       1008
sdb              46.40        22.40     40007.20        224     400072

avg-cpu:  %user   %nice    %sys %iowait   %idle
          28.96    0.00   24.06   40.77    6.20

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda             212.30     45693.60        68.80     456936        688
sdb              48.40         4.00     35515.20         40     355152

avg-cpu:  %user   %nice    %sys %iowait   %idle
          30.70    0.00   23.45   37.30    8.55

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda             180.20     48866.40        51.20     488664        512
sdb              55.40        23.20     37864.80        232     378648



hth,
grant
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On Sun, Apr 10, 2005 at 11:15:17PM -0600, Grant Grundler wrote:
> Just for comparison, I ran the same workload on ext3 and it worked fine.

Sorry, I meant ext2.


Here is the correct rsync output for ext3 on /dev/sdb3:

root@gggj6k:~# time rsync -aWx --stats / /mnt

Number of files: 394228
Number of files transferred: 349626
Total file size: 12845701275 bytes
Total transferred file size: 12845565669 bytes
Literal data: 12845570528 bytes
Matched data: 0 bytes
File list size: 7360229
Total bytes sent: 12869632989
Total bytes received: 6992540

sent 12869632989 bytes  received 6992540 bytes  8178231.52 bytes/sec
total size is 12845701275  speedup is 1.00

real    26m14.078s
user    5m47.767s
sys     7m11.995s
root@gggj6k:~# 


grant
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On Tue, Apr 05, 2005 at 11:28:26AM +0200, Joel Soete wrote:
...
> -#define hweight32(x) generic_hweight32(x)
> -#define hweight16(x) generic_hweight16(x)
> -#define hweight8(x) generic_hweight8(x)
> +#define hweight64(x)   generic_hweight64(x)
> +#define hweight32(x)   generic_hweight32(x)
> +#define hweight16(x)   generic_hweight16(x)
> +#define hweight8(x)    generic_hweight8(x)

This bit is fine.

>   * Every architecture must define this function. It's the fastest
> @@ -337,10 +330,8 @@
>  #else
>         if (unlikely(b[0]))
>                 return __ffs(b[0]);
> -       if (unlikely(((unsigned int)b[1])))
> +       if (unlikely(b[1]))
>                 return __ffs(b[1]) + 64;
> -       if (b[1] >> 32)
> -               return __ffs(b[1] >> 32) + 96;
>         return __ffs(b[2]) + 128;
>  #endif
...
> The second hunk just because I didn't understand why this form (looks like
> sparc64) and not another (e.g. ppc64).

I think it's just for performance.
Sparc implementation of __ffs isn't very fast and it's quicker
to test the high/low parts of the word seperately because of which
bits are most likely to be set.

I'm pretty sure on parisc it will only cost two more cycles to check
the extra 32-bits. The test for top/bottom seperately would likely
cost us more if we don't predict the branches correctly.

But becuase of how sparc64 does it, I'm wondering if we should
use "likely(b[1])". Any comments?


sched_find_first_bit(), __clear_bit() and find_next_bit() just
all need to agree how bits are numbered in am in-memory bitmap.

Code like this in kernel/sched.c:

skip_bitmap:
        if (!idx)
                idx = sched_find_first_bit(array->bitmap);
        else
                idx = find_next_bit(array->bitmap, MAX_PRIO, idx);

requires we number the bits the same way in both.
And __clear_bit() has to agree as well:

static void dequeue_task(struct task_struct *p, prio_array_t *array)
{
        array->nr_active--;
        list_del(&p->run_list);
        if (list_empty(array->queue + p->prio))
                __clear_bit(p->prio, array->bitmap);
}


parisc __clear_bit also uses unsigned long to access the array:

static __inline__ void __clear_bit(unsigned long nr, volatile unsigned long * address)
{
        unsigned long mask;
        unsigned long *addr = (unsigned long *) address;

        addr += (nr >> SHIFT_PER_LONG);
        mask = 1UL << CHOP_SHIFTCOUNT(nr);
        *addr &= ~mask;
}

ugh...I think I'm just going to use the sparc64 version here.
I'm not comfortable with the "volatile" attribute getting dropped.

thanks,
grant
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> -- Original Message --
> Date: Wed, 13 Apr 2005 00:14:30 -0600
> From: Grant Grundler <grundler@parisc-linux.org>
> To: Joel Soete <soete.joel@tiscali.be>
> Cc: Randolph Chung <randolph@tausq.org>,
> 	parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] some other small bitops.h suggestion?
> 
> 
> On Tue, Apr 05, 2005 at 11:28:26AM +0200, Joel Soete wrote:
> ...
> > -#define hweight32(x) generic_hweight32(x)
> > -#define hweight16(x) generic_hweight16(x)
> > -#define hweight8(x) generic_hweight8(x)
> > +#define hweight64(x)   generic_hweight64(x)
> > +#define hweight32(x)   generic_hweight32(x)
> > +#define hweight16(x)   generic_hweight16(x)
> > +#define hweight8(x)    generic_hweight8(x)
> 
> This bit is fine.
> 
> >   * Every architecture must define this function. It's the fastest
> > @@ -337,10 +330,8 @@
> >  #else
> >         if (unlikely(b[0]))
> >                 return __ffs(b[0]);
> > -       if (unlikely(((unsigned int)b[1])))
> > +       if (unlikely(b[1]))
> >                 return __ffs(b[1]) + 64;
> > -       if (b[1] >> 32)
> > -               return __ffs(b[1] >> 32) + 96;
> >         return __ffs(b[2]) + 128;
> >  #endif
> ...
> > The second hunk just because I didn't understand why this form (looks=

like
> > sparc64) and not another (e.g. ppc64).
> 
> I think it's just for performance.
> Sparc implementation of __ffs isn't very fast and it's quicker
> to test the high/low parts of the word seperately because of which
> bits are most likely to be set.
> 
That's what I thought too but not sure.

> I'm pretty sure on parisc it will only cost two more cycles to check
> the extra 32-bits. The test for top/bottom seperately would likely
> cost us more if we don't predict the branches correctly.
> 
> But becuase of how sparc64 does it, I'm wondering if we should
> use "likely(b[1])". Any comments?
> 
> 
> sched_find_first_bit(), __clear_bit() and find_next_bit() just
> all need to agree how bits are numbered in am in-memory bitmap.
> 
> Code like this in kernel/sched.c:
> 
> skip_bitmap:
>         if (!idx)
>                 idx =3D sched_find_first_bit(array->bitmap);
>         else
>                 idx =3D find_next_bit(array->bitmap, MAX_PRIO, idx);
> 
> requires we number the bits the same way in both.
> And __clear_bit() has to agree as well:
> 
> static void dequeue_task(struct task_struct *p, prio_array_t *array)
> {
>         array->nr_active--;
>         list_del(&p->run_list);
>         if (list_empty(array->queue + p->prio))
>                 __clear_bit(p->prio, array->bitmap);
> }
> 
> 
> parisc __clear_bit also uses unsigned long to access the array:
> 
> static __inline__ void __clear_bit(unsigned long nr, volatile unsigned
long
> * address)
> {
>         unsigned long mask;
>         unsigned long *addr =3D (unsigned long *) address;
> 
>         addr +=3D (nr >> SHIFT_PER_LONG);
>         mask =3D 1UL << CHOP_SHIFTCOUNT(nr);
>         *addr &=3D ~mask;
> }
> 
> ugh...I think I'm just going to use the sparc64 version here.
> I'm not comfortable with the "volatile" attribute getting dropped.
> 
Good for me ;-)

Thanks,
    Joel


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On Tue, Apr 05, 2005 at 11:28:26AM +0200, Joel Soete wrote:
> Here is some other change to suggest (even thought it doesn't fix anything
> :-( ):
...

Here is what I'd like to commit for include/parisc/bitops.h.

Summary of changes:
o uses generic_hweight64
o uses CONFIG_64BIT where neccessary
o make our __clear_bit and __set_bit look like ppc64 instead of sparc.
o simplify sched_find_first_bit()

Any comments before I commit this?

(Joel, additional changes can go in another commit please :^)

Beware, touching bitops.h will cause a full recompile.

thanks,
grant


Index: include/asm-parisc/bitops.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/bitops.h,v
retrieving revision 1.18
diff -u -p -r1.18 bitops.h
--- include/asm-parisc/bitops.h	4 Apr 2005 17:54:41 -0000	1.18
+++ include/asm-parisc/bitops.h	13 Apr 2005 17:44:13 -0000
@@ -12,7 +12,7 @@
  * to include/asm-i386/bitops.h or kerneldoc
  */
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 #   define SHIFT_PER_LONG 6
 #ifndef BITS_PER_LONG
 #   define BITS_PER_LONG 64
@@ -43,37 +43,29 @@ static __inline__ void set_bit(int nr, v
 	_atomic_spin_unlock_irqrestore(addr, flags);
 }
 
-static __inline__ void __set_bit(int nr, volatile unsigned long * address)
+static __inline__ void __set_bit(unsigned long nr, volatile unsigned long * addr)
 {
-	unsigned long mask;
-	unsigned long *addr = (unsigned long *) address;
+	volatile unsigned long *m = addr + (((unsigned) nr) >> SHIFT_PER_LONG);
 
-	addr += (nr >> SHIFT_PER_LONG);
-	mask = 1UL << CHOP_SHIFTCOUNT(nr);
-	*addr |= mask;
+	*m |= 1UL << CHOP_SHIFTCOUNT(nr);
 }
 
 static __inline__ void clear_bit(int nr, volatile unsigned long * address)
 {
-	unsigned long mask;
-	unsigned long *addr = (unsigned long *) address;
+	unsigned long mask = 1UL << CHOP_SHIFTCOUNT((unsigned int) nr);
+	volatile unsigned long *addr = address + (((unsigned int) nr) >> SHIFT_PER_LONG);
 	unsigned long flags;
 
-	addr += (nr >> SHIFT_PER_LONG);
-	mask = 1UL << CHOP_SHIFTCOUNT(nr);
 	_atomic_spin_lock_irqsave(addr, flags);
 	*addr &= ~mask;
 	_atomic_spin_unlock_irqrestore(addr, flags);
 }
 
-static __inline__ void __clear_bit(unsigned long nr, volatile unsigned long * address)
+static __inline__ void __clear_bit(unsigned long nr, volatile unsigned long * addr)
 {
-	unsigned long mask;
-	unsigned long *addr = (unsigned long *) address;
+	volatile unsigned long *m = addr + (nr >> SHIFT_PER_LONG);
 
-	addr += (nr >> SHIFT_PER_LONG);
-	mask = 1UL << CHOP_SHIFTCOUNT(nr);
-	*addr &= ~mask;
+	*m &= ~(1UL << CHOP_SHIFTCOUNT(nr));
 }
 
 static __inline__ void change_bit(int nr, volatile unsigned long * address)
@@ -89,14 +81,11 @@ static __inline__ void change_bit(int nr
 	_atomic_spin_unlock_irqrestore(addr, flags);
 }
 
-static __inline__ void __change_bit(int nr, volatile unsigned long * address)
+static __inline__ void __change_bit(unsigned long nr, volatile unsigned long * addr)
 {
-	unsigned long mask;
-	unsigned long *addr = (unsigned long *) address;
+	volatile unsigned long *m = addr + (nr >> SHIFT_PER_LONG);
 
-	addr += (nr >> SHIFT_PER_LONG);
-	mask = 1UL << CHOP_SHIFTCOUNT(nr);
-	*addr ^= mask;
+	*m ^= 1UL << CHOP_SHIFTCOUNT(nr);
 }
 
 static __inline__ int test_and_set_bit(int nr, volatile unsigned long * address)
@@ -229,7 +218,7 @@ static __inline__ unsigned long __ffs(un
 	unsigned long ret;
 
 	__asm__(
-#if BITS_PER_LONG > 32
+#ifdef CONFIG_64BIT
 		" ldi       63,%1\n"
 		" extrd,u,*<>  %0,63,32,%%r0\n"
 		" extrd,u,*TR  %0,31,32,%0\n"	/* move top 32-bits down */
@@ -304,14 +293,7 @@ static __inline__ int fls(int x)
  * hweightN: returns the hamming weight (i.e. the number
  * of bits set) of a N-bit word
  */
-#define hweight64(x)						\
-({								\
-	unsigned long __x = (x);				\
-	unsigned int __w;					\
-	__w = generic_hweight32((unsigned int) __x);		\
-	__w += generic_hweight32((unsigned int) (__x>>32));	\
-	__w;							\
-})
+#define hweight64(x) generic_hweight64(x)
 #define hweight32(x) generic_hweight32(x)
 #define hweight16(x) generic_hweight16(x)
 #define hweight8(x) generic_hweight8(x)
@@ -324,7 +306,13 @@ static __inline__ int fls(int x)
  */
 static inline int sched_find_first_bit(const unsigned long *b)
 {
-#ifndef __LP64__
+#ifdef CONFIG_64BIT
+	if (unlikely(b[0]))
+		return __ffs(b[0]);
+	if (unlikely(b[1]))
+		return __ffs(b[1]) + 64;
+	return __ffs(b[2]) + 128;
+#else
 	if (unlikely(b[0]))
 		return __ffs(b[0]);
 	if (unlikely(b[1]))
@@ -334,14 +322,6 @@ static inline int sched_find_first_bit(c
 	if (b[3])
 		return __ffs(b[3]) + 96;
 	return __ffs(b[4]) + 128;
-#else
-	if (unlikely(b[0]))
-		return __ffs(b[0]);
-	if (unlikely(((unsigned int)b[1])))
-		return __ffs(b[1]) + 64;
-	if (b[1] >> 32)
-		return __ffs(b[1] >> 32) + 96;
-	return __ffs(b[2]) + 128;
 #endif
 }
 
@@ -445,7 +425,7 @@ found_middle:
  * test_and_{set,clear}_bit guarantee atomicity without
  * disabling interrupts.
  */
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 #define ext2_set_bit(nr, addr)		__test_and_set_bit((nr) ^ 0x38, (unsigned long *)addr)
 #define ext2_set_bit_atomic(l,nr,addr)  test_and_set_bit((nr) ^ 0x38, (unsigned long *)addr)
 #define ext2_clear_bit(nr, addr)	__test_and_clear_bit((nr) ^ 0x38, (unsigned long *)addr)
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> > In this case, we are doing a single operation to *addr, and this
> > function is explicitly not atomic, so I am not quite sure why we need
> > volatile at all.
> 
> James Bottomley dug up the original thread:
> 	http://marc.theaimsgroup.com/?t=108826637900003
> 
> If __set_bit() doesn't need volatile, then is the same true
> for __clear_bit and __change_bit?

The above discussion bothers me a lot:

  So the rule has always been (and this has nothing to do with parisc, and 
  parisc DOES NOT GET TO SET THE RULES!) that "test_bit()" acts in a 
  volatile manner, and that you traditionally could write

     while (test_and_set_bit(xxx, field))
       while (test_bit(xx, field)) /* Nothing */;

  to do a lock.

  NOTE! There are no volatile data structures _anywhere_, because as
  mentioned, I think that whole notion is a total piece of crap, and is not
  even a well-defined part of the C language. But the test_bit() function
  has to act as if the data it is passed down can change. To repeat:  
  _codepaths_ may have volatility attributes depending on usage of the data.

I don't believe that a lock can be implemented as shown above on
PA-RISC as we don't have an atomic test_and_set_bit.  The only atomic
ops are ldcw and ldcd (load and clear word/double).  So, if test_and_set_bit
needs locking semantics, it will have to be implemented with spinlocks.

Secondly, I'm not convinced of the concept of volatile code paths
and using the volatile keyword to keep loops from being optimized
away.  I think this approach results in bad code.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Fri, Apr 15, 2005 at 05:41:22PM -0400, John David Anglin wrote:
> > My take is "volatile" is just a way to tell gcc something about the
> > code/data that it can't see. I'm not going to quibble with linus
> > about whether data is volatile or code is volatile. I think in some
> > cases it's one (e.g accessing memory mapped HW) or the other
> > (accessing shared data). Key thing is gcc be able to optimize code
> > but not remove it (especially in the latter case).
> 
> The problem here is that there are some conventions regarding the use
> of "volatile" in GCC C that are rather poorly documented.  You might
> look at this discussion regarding volatile and C++ to get a flavor
> for what I mean <http://gcc.gnu.org/ml/gcc/2005-04/msg00724.html>.

In this followup, I think Nathan Sidwell got at least one bit:
| It seems to me that threads require barriers _within_ the abstract machine,
| and currently there is no mechanism to specify just that.  Volatile is all
| we have, and AFAICT those are only ordered WRT other volatile accesses
| separated by a sequence point.

(See http://gcc.gnu.org/ml/gcc/2005-04/msg00748.html)

And that's a difference: the kernel has defined a set of barriers.
Linux kernel generally doesn't depend on current semantics of volatile
for accessing memory mapped IO.
At least I don't think it does since ia64-linux is using ld.acq
and st.rel instructions today.  While the compiler is observing
the ordering, the CPU may not.  e.g. The CPU doesn't wait for a
regular store to complete before starting sucessive ld.acq.

This is a rare for IO drivers to do this. More discussion about
volatile and acq/rel semantics in "IA-64 Linux Kernel" by
David Mosberger and Stephane Eranian.

I learned one more thing about ia64 not in the book when trying
to understand how ld.rel works WRT to fixing posted write problems
(st.rel).  I summarize it in my OLS2004 paper:
	http://iou.parisc-linux.org/ols2004/www/

See http://iou.parisc-linux.org/ols2004/www/2_2_Eh_Memory_Reads.html

  "Memory ordering imposes no constraint on non-load/store instructions."

This is critical for changing CPU state (enable/disable I-bit) or
reading CPU state (e.g. ITC).

ia64 has a weakly ordered memory subsystem but executes instructions
in order. parisc is strongly ordered for both and is less complicated
in this regard. I think because of this parisc could use volatile
keyword for telling the compiler certain instructions *must* be kept
in the stream, and then use memory barriers to constrain how the
optimizer can reorder the instruction stream.

But changing the semantics of volatile will break some code
in both the kernel and in multithreaded applications.
I strongly suspect this is going to need to fall into
the "use with caution" compiler flags (like -O4).

I'm glad they are having this discussion now *before*
widespread adoption of RDMA technologies.

hth,
grant
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> My take is "volatile" is just a way to tell gcc something about the
> code/data that it can't see. I'm not going to quibble with linus
> about whether data is volatile or code is volatile. I think in some
> cases it's one (e.g accessing memory mapped HW) or the other
> (accessing shared data). Key thing is gcc be able to optimize code
> but not remove it (especially in the latter case).

The problem here is that there are some conventions regarding the use
of "volatile" in GCC C that are rather poorly documented.  You might
look at this discussion regarding volatile and C++ to get a flavor
for what I mean <http://gcc.gnu.org/ml/gcc/2005-04/msg00724.html>.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] More from the TLS glibc front.
Date: Fri, 15 Apr 2005 10:33:11 -0400
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To: Randolph Chung <randolph@tausq.org>
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On Sun, Apr 10, 2005 at 03:44:03AM -0700, Randolph Chung wrote:
> btw, Carlos, are you building glibc with linuxthreads or nptl when you
> enable TLS? If I use nptl I get a lot of build errors very early in the
> build process.

Disable nptl, we don't have the patches for that to work yet, since we
don't have a working futex prototype.

I am building with:

$SRC/$LIBC/configure --host=$ARCH-linux --build=$ARCH-linux
--target=$ARCH-linux --prefix=$GINSTALL --enable-add-ons=linuxthreads
--enable-tls --enable-__thread  --enable-all-warnings >&
../configure-$BUILDNAME-$ARCH.log

c.

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From: "Kai Holthaus" <kmh@sonic.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] A500: 2.4.18 64bit SMP Kernel Crash
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Xref: news.gmane.org gmane.linux.ports.parisc:22619

Hi,

I recently got a 2-way A500, model 9000/800/A500-5X, and I installed
Debian Woody on it. The plain vanilla 2.4.17-64 kernel seems to work fine,
but I think it's somewhat of a waste to have two CPUs and not use both.

So, I installed the 2.4.18-hppa kernel sources, and built my own kernel.
However, the box wouldn't boot that kernel; instead it'd crash right after
the IPL part of PALO would try to load the kernel image.

- I used the gcc-hppa64-3.0.4ds9-3-hppa.deb gcc compiler, along with the
binutils-2.11.90.0.18-o.deb package off
ftp.parisc-linux.org/unofficial-debs to compile
- The kernel was compiled using Debian's kernel-package tools
- Palo's kernel command line is as follows:
  2/vmlinux root=/dev/sda4 HOME=/
  with vmlinux being a symlink to vmlinux-2.4.18.
- The System.map and .config are placed on my webserver at:
  http://www.holthausworld.us/System.map-2.4.18
  http://www.holthausworld.us/2.4.18.config

Console output is this:

Trying Primary Boot Path
------------------------
Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.0 root@palinux Mon Apr  1 10:02:53 MST 2002

Partition Start(MB) End(MB) Id Type
1               1      31   f0 Palo
2              32     126   83 ext2
3           15460   17366   82 swap
4             127   15459   83 ext2

PALO(F0) partition contains:
    0/vmlinux64 4719374 bytes @ 0x44000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=/dev/sda4 HOME=/ console=ttyS0 TERM=vt102
palo_ke'
Selected kernel: /vmlinux from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 2075328 mediaptr 0x1000
Segment 1 load 002fc000 size 852864 mediaptr 0x1fc000
Segment 2 load 003d0000 size 458752 mediaptr 0x2cd000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org


************* SYSTEM ALERT **************
SYSTEM NAME: uninitialized
DATE: 04/18/2005 TIME: 19:10:21
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         OFF       OFF        ON
LED State: Running non-OS code.  Non-critical error detected.
Check Chassis and Console Logs for error messages.

0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
0x5800087000FF6292 00006903 12130A15 - type 11 = Timestamp 04/18/2005
19:10:21
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:a
*****************************************



Console reset done.

Boot device reset done.

------------------------------------------------------

After a reset, ser pim shows this:

Main Menu: Enter command or menu > ser pim


PROCESSOR PIM INFORMATION

Original Product Number:   A5570B
Current Product Number:    A5570B


-----------------  Processor 0 HPMC Information - PDC Version: 43.50  ------

Timestamp =    Mon Apr  18 19:10:21 GMT 2005    (20:05:04:18:19:10:21)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0x0000082000ff6242  0x0000000000000000
       0x1800082011006312  0xcb81000000000000
       0x0000087000ff6292  0x000000f0f0000000
       0x6000082070006062  0x0000000000100010
       0x7000082070006082  0x0000000000b92400
       0x7000082379006133  0xc1bff0fffed08040
       0x0000080080006310  0x0000000000000001
       0x000008008000631f  0x0000000000000000
       0x0000082000ff6452  0x0000000000000000
       0x0000082000ff6402  0x0000000000000000
       0x0000080080006300  0x0000000000000001
       0x7000082382006343  0x0000000000070200
       0x7000082483ff6353  0x00000000005a0200
       0x2000082483ff6353  0x000000ffff04ff83
       0x7000082382026343  0x0000000000070200
       0x7000082382046343  0x0000000000070200
       0x0000080089006200  0x0000000000000000
       0x0000080086006200  0x0000000000000000
       0x000008008000630f  0x0000000000000000


General Registers 0 - 31
00-03  0000000000000000  000000000000d580  000000000000c2b0  0000000000450248
04-07  fffffffff8000000  0000000000000000  0000000000450300  0000000000000000
08-11  0000000000000001  0000000000000060  0000000000450248  0000000000000000
12-15  0000000000450300  0000000000000001  0000000000454808  00000000000000ff
16-19  0000000000000000  00000000f000024c  0000000010454700  fffffffff8000005
20-23  0000000000450300  0000000000000003  0000000000000190  0000000000000001
24-27  0000000000450300  0000000000450248  fffffffff8000000  000000000000d730
28-31  00000000103be6b0  0000000000454908  00000000004549e8  0000000000000020


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  00000000000000c0  0000000000000004
12-15  0000000000000000  0000000000000000  0000000000105000  0000000000000000
16-19  00000010db47fee8  0000000000000000  000000000000c3dc  000000000e601027
20-23  00000000ae07ffe0  c000000000000005  0000000008000008  8000000000000000
24-27  0000000000353000  0000000000353000  ff7fffffffffffff  ff7fffffffffffff
28-31  ff7fffffffffffff  ff7fffffffffffff  0000000010434000  0000000010438000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x000000000000c3e0
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030103b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x000000fff8000005
System Requestor Address     = 0xfffffffffffa0000


Floating Point Registers 0 - 31
00-03  0010080000000000  0000000000000000  0000000000000000  0000000000000000
04-07  00000000103aa038  0000000000000001  0000000000000000  0000000017c86000
08-11  000000000800000f  00000000104e36a8  000000001040f1e0  0000000017cc26c0
12-15  0000000000004000  0000000000000000  000000001016b2c8  000000000804000e
16-19  00000000103aa038  0000000000000002  0000000000000002  000000001040f1e0
20-23  000000001040f1e0  0000000000000802  0000000000000000  0000000000000000
24-27  834e0b5f17c86000  0000000000000000  000000001040f1e0  000000001040f1e0
28-31  0000000000000802  00000000103dd2c0  0000000010157288  0000000000000002


Check Summary                = 0xcb81000000000000
Available Memory             = 0x0000000100000000
CPU Diagnose Register 2      = 0x0301000100002004
CPU Status Register 0        = 0x2440c20000000000
CPU Status Register 1        = 0x8002000000000000
SADD LOG                     = 0x002000010301f900
Read Short LOG               = 0xc18040fff8000005



-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000000000000
CPU State                    = 0x00000000



-----------------  Processor 1 HPMC Information - PDC Version: 43.50  ------

Timestamp =    Mon Apr  18 19:10:21 GMT 2005    (20:05:04:18:19:10:21)

HPMC Chassis Codes

       Chassis Code        Extension
       ------------        ---------
       0x0000082000ff6242  0x0000000000000000
       0x1800082011016322  0xc381800000000000
       0x0000082000ff6412  0x0000000000000000
       0x0000082000ff6402  0x0000000000000000


General Registers 0 - 31
00-03  0000000000000000  00000010db409f38  0000000000000000  00000000000000f7
04-07  000000000000174f  fffffff0f040a000  000000000000003e  00000000000000f7
08-11  0000000000000000  fffffff0f0400000  00000000000000f6  00000000000000fe
12-15  00000000000000f2  0000000000000001  00000000000000f0  00000000000000ff
16-19  000000f0f00000a4  fffffff0f040c000  0000000000000000  0000000000000000
20-23  0000000000000001  00000000000000fa  fffffff0f0400000  0000000000000000
24-27  00000000000000f9  0000000000000000  000018001001c400  000000f0f0167a30
28-31  0000000000000000  000000f0f040a938  000000f0f040a738  3031323334353637


Control Registers 0 - 31
00-03  000000007fffffff  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0007ffff0007ffff  1217ffff480fffff  0000000000000000  0000000000000017
12-15  0007ffff0007ffff  4407ffff08efffff  000000f0f0006800  0000000000000000
16-19  00000010db47f492  00000000ffffffff  00000000000006f8  00000000c402ff2d
20-23  000000009207c3c1  000000000280a8c0  000000ff0800fe08  0000000000000000
24-27  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
28-31  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff

Space Registers 0 - 7
00-03  ffffffff          ffffffff          ffffffff          ffffffff
04-07  ffffffff          ffffffff          ffffffff          ffffffff


IIA Space (back entry)       = 0x00000000ffffffff
IIA Offset (back entry)      = 0x00000000000006fc
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0030000d
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0xfffffffffffa2000
System Requestor Address     = 0xfffffffffffa0000


Floating Point Registers 0 - 31
00-03  fff60ff7e0fdf61f  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
04-07  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
08-11  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
12-15  ffffffffffffffff  fbfffcf87b1ef697  fffffffaffffffff  ffffffffffffffff
16-19  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffe88c4a82
20-23  ffffffff779ab695  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
24-27  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff
28-31  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff  ffffffffffffffff


Check Summary                = 0xc381800000000000
Available Memory             = 0x0000000100000000
CPU Diagnose Register 2      = 0x0301010180002000
CPU Status Register 0        = 0x3040000000000000
CPU Status Register 1        = 0x8000000000000000
SADD LOG                     = 0x4800000000000000
Read Short LOG               = 0xc1bff0f0f0400000



-----------------  Processor 1 LPMC Information ------------------

Check Type                   = 0x00000000
IC Parity Info               = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0x0000000000000000



-----------------  Processor 1 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000

Space Registers 0 - 7
00-03  00000000          00000000          00000000          00000000
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000000000000
CPU State                    = 0x00000000


--------------  Memory Error Log Information  --------------

Bus 0 Log Information

Timestamp =    Mon Apr  18 19:10:22 GMT 2005    (20:05:04:18:19:10:22)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
  X       X     ERR_ERROR       X            X

Bus Requestor Address      = 0xfffffffffffa0000
Bus Target Address         = 0x0000000000000000
Bus Responder Address      = 0xfffffffffed00000

Error Status Reg           = 0x0000000000100010
Runway Control Reg         = 0x0000021c00001418
Runway Address Reg         = 0xc1bff0fffed08040
Runway Data High Reg       = 0xe840c000083c025c
Runway Data Low Reg        = 0xe840c000083c025c
Memory Address Reg         = 0x000001ff3fffffff
Memory Address Corr Reg    = 0x000001ff3fffffff
Memory Syndrome Reg        = 0x0000000000000000
Memory Syndrome Corr Reg   = 0x0000000000000000



 Address/Control Parity Error Registers

   Address/Control Parity Error Bit (mem_addr_par_stat) Not Set



------------  I/O Module Error Log Information  ------------

Summary of IO subsystem log entries
-----------------------------------
                        Phys Loc             Vendor  Device   Severity
Description             (hex)                 Id      Id      CORR UNC FE  CW
-----------             -----                ------  ------  
----------------
System Bus Adapter RP  0x000000ffff04ff83   0x103c  0x1051              X
Local Bus Adapter  P   0x000000ffff04ff83   0x103c  0x1054              X
System Bus Adapter RP  0x000000ffff01ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000000ffff02ff83   0x103c  0x1051              X


Detail display of IO subsystem log entries
------------------------------------------

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Mon Apr  18 19:10:22 GMT 2005    (20:05:04:18:19:10:22)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff04ff83

Local Bus Adapter  --        PCI Interface
------------------------------------------

Timestamp =    Mon Apr  18 19:10:22 GMT 2005    (20:05:04:18:19:10:22)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
      X        ERR_TIMEOUT                       X

IO Requestor Address    = 0xfffffffffed30000
IO Target Address       = 0x00000000f8000004
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffff04ff83
IO Hardware Path        = 0x00ffffffffff0000

Module Error Register   = 0x000000000000001c

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Mon Apr  18 19:10:22 GMT 2005    (20:05:04:18:19:10:22)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff01ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Mon Apr  18 19:10:22 GMT 2005    (20:05:04:18:19:10:22)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff02ff83

--------------------------------------------------------------

Not being a developer, all these numbers don't mean anything to me. Does
anybody have an idea what the problem might be?

I experienced similar behavior just using the standard Debian
kernel-image-2.4.18-64-smp (although I didn't do the ser pim stuff yet -
might be better to attack one problem at a time, no?)

Thanks so much,

   Kai Holthaus
   kmh.AT.sonic.net


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Subject: Re: [parisc-linux] A500: 2.4.18 64bit SMP Kernel Crash
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Xref: news.gmane.org gmane.linux.ports.parisc:22620

> So, I installed the 2.4.18-hppa kernel sources, and built my own kernel.
> However, the box wouldn't boot that kernel; instead it'd crash right after
> the IPL part of PALO would try to load the kernel image.
> 
> - I used the gcc-hppa64-3.0.4ds9-3-hppa.deb gcc compiler, along with the
> binutils-2.11.90.0.18-o.deb package off
> ftp.parisc-linux.org/unofficial-debs to compile

Can you try a prebuilt a500 kernel? Something from
http://cvs.parisc-linux.org/download/linux-2.6/

Perhaps:
http://cvs.parisc-linux.org/download/linux-2.6/autobuild/a500_defconfig/palinux-a500-defconfig-2.6.12-rc2-pa3_0-2_all.deb

If you want to build it from source, I would suggest that you:
- upgrade to "testing" from woody
- install gcc-3.3-hppa64 and binutils-hppa64 (from Debian, not
  from unofficial-debs)
- Get the sources from
  http://cvs.parisc-linux.org/download/linux-2.6/linux-2.6.12-rc2-pa3.tar.bz2

  Or directly from cvs: http://www.parisc-linux.org/faq/cvs.html

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: Re: [parisc-linux] A500: 2.4.18 64bit SMP Kernel Crash
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-------------------
> > So, I installed the 2.4.18-hppa kernel sources, and built my own
kernel.
> > However, the box wouldn't boot that kernel; instead it'd crash
right after
> > the IPL part of PALO would try to load the kernel image.
> >=20
> > - I used the gcc-hppa64-3.0.4ds9-3-hppa.deb gcc compiler, along
with the
> > binutils-2.11.90.0.18-o.deb package off
> > ftp.parisc-linux.org/unofficial-debs to compile
>=20
> Can you try a prebuilt a500 kernel? Something from
> http://cvs.parisc-linux.org/download/linux-2.6/
>=20
> Perhaps:
>
http://cvs.parisc-linux.org/download/linux-2.6/autobuild/a500_defconfi
g/palinux-a500-defconfig-2.6.12-rc2-pa3_0-2_all.deb
>=20
> If you want to build it from source, I would suggest that you:
> - upgrade to "testing" from woody
> - install gcc-3.3-hppa64 and binutils-hppa64 (from Debian, not
>   from unofficial-debs)
> - Get the sources from
> =20
http://cvs.parisc-linux.org/download/linux-2.6/linux-2.6.12-rc2-pa3.ta
r.bz2
>=20
>   Or directly from cvs: http://www.parisc-linux.org/faq/cvs.html

Beware that it is likely that your SCSI devices will be renamed (eg
sda -> sdb)

--=20
Thibaut VARENE
Debian, Ubuntu and Kernel hacker
http://www.pateam.org/
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> Can you try a prebuilt a500 kernel? Something from
> http://cvs.parisc-linux.org/download/linux-2.6/

Thanks for your reply - I did try the 64smp flavor of the 2.4.22 kernel on
cvs.p-l.org, and that worked.

> If you want to build it from source, I would suggest that you:
> - upgrade to "testing" from woody
> - install gcc-3.3-hppa64 and binutils-hppa64 (from Debian, not
>  from unofficial-debs)
> - Get the sources from

If at all possible, I'd like the system to stay on woody, since it's going
to be a server. I did install the gcc and binutils testing Debian
packages, and tried to compile the 2.6.11-pa2 kernel from cvs.p-l.org, and
got that to work with 64-bit and smp as well.

So, thanks again for the tips!

   Kai Holthaus
   kmh.AT.sonic.net

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From: Anders <dizzey@ing.umu.se>
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Subject: [parisc-linux] k-class and j3514A (tulip dual 100mbit tulip)
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now im back and have almost everything working in my k460.
except the tulip dual 100mbit dino card.
i have tried the card with linux-2.6.9-bk6-pa7 and linux-2.6.12-rc2-pa3
with the same results it finds the card fine

Linux Tulip driver version 1.1.13 (December 15, 2004)
tulip0:  MII transceiver #1 config 3100 status 7849 advertising 01e1.
eth1: Digital DS21140 Tulip rev 34 at 80000080, 00:30:6E:27:99:EC, IRQ 
20.
tulip1:  MII transceiver #1 config 3100 status 786b advertising 01e1.
eth2: Digital DS21140 Tulip rev 34 at 80000100, 00:30:6E:27:99:ED, IRQ 
21.

but when i try to ping something it gives me
Dino 0xf1000000: stuck interrupt 2
Dino 0xf1000000: stuck interrupt 6

and then 

NETDEV WATCHDOG: eth0: transmit timed out
NETDEV WATCHDOG: eth0: transmit timed out
NETDEV WATCHDOG: eth0: transmit timed out

i can use the  mii-tool to change link status and have veriffied that it 
works on the switch that im using.

i have tried it as a module and in kernel and i have tried every 
combination of the options for  "DECchip Tulip (dc2114x) PCI support"
in menuconfig but it dosent make any diffrence i have tried placing the 
card in other slots in the system to.

here is a complete dmesg with linux-2.6.12-rc2-pa3

http://www.ing.umu.se/~dizzey/dmesg_k460.log 

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> 	"stw    %%r28, %0\n\t"						\
> 	"stw    %%r21, %1\n\t"						\
> 	: "=m" (retval), "=m" (error)					\
>         : "r" (lwsnum), "r" (in0), "r" (in1), "r" (in2)			\

Do retval and error need to be in memory (i.e., do we need the two
stores)?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] D380: ccio-dma issue for 64bit kernel?
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> > On Thu, 2005-04-14 at 14:39 +0200, Joel Soete wrote:
> > > wax at 0xffffffffffe00000 found.
> > > Wax EISA Adapter found at 0xfffffffffc000000
> > > Enumerating EISA bus
> > >
> > > Any idea?
> >
> > Yes, disable EISA ... EISA is toxic to 64 bit kernels.
> >
> Ah ok (I haven't any EISA card just 4 gsc one :-) )
> 
well another pb: system hung after:
...
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xffffffffffd07000, IRQ 18
eth0: 82596 at 0xffffffffffd07000, 00 00 00 00 08 00 IRQ 18.
zalon_probe: Zalon version 1, IRQ 66
ncr53c720-0: rev 0xf irq 66
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3g
scsi: Device offlined - not ready after error recovery: host 0 channel 0
id 0 lu
n 0
scsi: Device offlined - not ready after error recovery: host 0 channel 0
id 5 lu
n 0

while usualy with 32bit it find well:
...
scsi0 : ncr53c8xx-3.4.3g
  Vendor: SEAGATE   Model: ST39173WC         Rev: HP11
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:5: Beginning Domain Validation
 target0:0:5: asynchronous.
 target0:0:5: wide asynchronous.
 target0:0:5: Domain Validation skipping write tests
 target0:0:5: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
 target0:0:5: Ending Domain Validation
  Vendor: SEAGATE   Model: ST39236LC         Rev: HP02
  Type:   Direct-Access                      ANSI SCSI revision: 03
 target0:0:8: Beginning Domain Validation
 target0:0:8: asynchronous.
 target0:0:8: wide asynchronous.
 target0:0:8: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
 target0:0:8: Ending Domain Validation
  Vendor: SEAGATE   Model: ST32550W          Rev: HP12
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:9: Beginning Domain Validation
 target0:0:9: asynchronous.
 target0:0:9: wide asynchronous.
 target0:0:9: Domain Validation skipping write tests
 target0:0:9: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
 target0:0:9: Ending Domain Validation
  Vendor: SEAGATE   Model: ST32550W          Rev: HP12
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:10: Beginning Domain Validation
 target0:0:10: asynchronous.
 target0:0:10: wide asynchronous.
 target0:0:10: Domain Validation skipping write tests
 target0:0:10: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
 target0:0:10: Ending Domain Validation
...

Thanks again,
    Joel


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On Sun, Apr 10, 2005 at 03:44:03AM -0700, Randolph Chung wrote:
> I'm using:
> binutils CVS HEAD (20050409)
> gcc-4.0-20050402 (ftp'ed)
> glibc CVS HEAD (20050409)
> 
> First of all, the patches seem to be out of date. I've updated the
> binutils and gcc ones.
> 
> http://www.parisc-linux.org/~tausq/hppa-tls-gcc.diff
> http://www.parisc-linux.org/~tausq/hppa-tls-binutils.diff
> 
> I find some other issues with the glibc build. Carlos, a few of your
> patches are malformed. They have CVS conflict markers in them.. :)
> 
> Right now my build fails when building tst-tlsmod14a.c with a gcc ICE. I
> think my gcc patches are broken (no surprise there...)

Woah, wait a second. You have a working build? You got to atleast the
check phase if you are building the tests. Are you sure your build made
it all the way through?

How did you fix this:
/mnt/flaire/src/tls-toolchain/install/bin/../lib/gcc/hppa-linux/3.4.3/../../../../hppa-linux/bin/ld:
__libc_errno: TLS definition in
/home/carlos/fsrc/tls-toolchain/build/libc/2005-04-08-hppa/libc_pic.a(errno.os)
section .tbss mismatches non-TLS reference in
/home/carlos/fsrc/tls-toolchain/build/libc/2005-04-08-hppa/libc_pic.a(getcwd.os)


c.

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> Bugger. Then our testcase is undefined. Removing exit() fixes the
> problem.

There might still be a bug.  I have the sense that doing a fork()
in the signal handler might cause a problem similar to that with
exit().  I say might because I'm not sure that sigsuspend will
cause a problem in this case.  The procss may get restarted by
a SIGCHLD signal.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Note: gcc 3.5 or higher is now required to build glibc.

3.5 doesn't exist.  This should be 4.0.0.  However, I'm surprised
that 3.3.5 or 3.4.3 don't work.  They both have more test history.

Dave
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On Wed, Apr 13, 2005 at 06:31:05PM -0700, Randolph Chung wrote:
> One might argue that the contents pointed to by addr can be volatile,
> but in that case shouldn't it be "unsigned long * volatile addr"?

Originally it's to make sure gcc doesn't optimize the read/modify/write
completely away if it thinks no one is using the result.

> In this case, we are doing a single operation to *addr, and this
> function is explicitly not atomic, so I am not quite sure why we need
> volatile at all.

James Bottomley dug up the original thread:
	http://marc.theaimsgroup.com/?t=108826637900003

If __set_bit() doesn't need volatile, then is the same true
for __clear_bit and __change_bit?

grant
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On Sat, Apr 09, 2005 at 07:44:22PM -0400, John David Anglin wrote:
> I number of other things to note.  If the signal handler uses
> _exit() or _Exit(), the program doesn't hang.  If exit() is called
> twice, the behavior is undefined.  I would argue that we don't call
> exit twice but that's timing depend with the current testcase.
> exit() isn't listed as async-signal-safe, so it's probably not
> legit to call it from a signal handler.  Thus, this isn't a bug.

Bugger. Then our testcase is undefined. Removing exit() fixes the
problem.

Randolph's SIGILL's are still an interesting problem.

c.

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> My glibc build went from 50 minutes to 80+ minutes when I moved to gcc
> 3.4 from 3.3. Atleast this seems to be the only change.
> 
> Is 3.4. that much slower?

Possibly.  However, the generated code is likely faster on average.
Compilation times are very much dependent on the optimization passes run,
particularly the amount of inlining done, and the amount of memory
available.  I believe that the inlining limits are somewhat higher
than in 3.3.  I've seen at least one C++ case where inlining can
change compilation times from minutes to hours.

If someone wants to try, it probably would be useful to see how
performance compares on various benchmarks.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] some other small bitops.h suggestion?
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> One might argue that the contents pointed to by addr can be volatile,
> but in that case shouldn't it be "unsigned long * volatile addr"?

no, this part is not right. pls ignore.

randolph
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On Thu, Apr 14, 2005 at 10:39:08AM -0400, John David Anglin wrote:
...
> I don't believe that a lock can be implemented as shown above on
> PA-RISC as we don't have an atomic test_and_set_bit.  The only atomic
> ops are ldcw and ldcd (load and clear word/double).  So, if test_and_set_bit
> needs locking semantics, it will have to be implemented with spinlocks.

I think linus was just defining what he expects from test_and_set_bit().
If parisc implementation doesn't work that way, he considers it a bug
in the parisc implemenation (vs redefining the interface).

> Secondly, I'm not convinced of the concept of volatile code paths
> and using the volatile keyword to keep loops from being optimized
> away.  I think this approach results in bad code.

My take is "volatile" is just a way to tell gcc something about the
code/data that it can't see. I'm not going to quibble with linus
about whether data is volatile or code is volatile. I think in some
cases it's one (e.g accessing memory mapped HW) or the other
(accessing shared data). Key thing is gcc be able to optimize code
but not remove it (especially in the latter case).

We do use volatile for accessing memory mapped HW in all our readl/writel
implementations. Those are uncached accesses and thus shouldn't
ever get removed. This is the obvious case.

I just realized we often use mb() variants in the kernel to mark at least
boundary of lockless access to shared data. But volatile is almost
never mentioned for many of these accesses.
E.g. tg3.[ch] driver messes around with shared memory areas (descriptor
rings) but doesn't have "volatile" keyword in it.

Though we do NOT mark those accesses (memory writes in particular)
with volatile, it sounds like we should.

grant
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On Sun, Apr 10, 2005 at 03:44:03AM -0700, Randolph Chung wrote:
> I find some other issues with the glibc build. Carlos, a few of your
> patches are malformed. They have CVS conflict markers in them.. :)

Oh, yes. I'm not always as careful as I want to be with that patch
generation. I fix the upstream glibc problems too fast, and the update
script does a 'cvs up' and then generates patches. Not always optimal.

c.

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On Sat, Apr 09, 2005 at 11:01:00AM -0400, John David Anglin wrote:
> > > Just wondering if this has to do with rt signals versus old style linux
> > > signals (ia64 seems to define some wrappers).
> > 
> > libc or kernel?
> 
> libc.

Where are you looking to see these wrappers?

c.
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Hello all,

This is a d380 2way pa8000 with 256K of ram which boot and run fine 32bit=

kernels (up et smp) :-)

As those processor are pa8000, I would be also able to run 64bi kernel?

I tried 2.6.12-rc2-pa2 but it failled at:
...
 EISA bus registered
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port at 0xfffffffffff88000 [8] { 12, 0xf, 0x580, 0x00=
00b
}
2. UL 550 Lasi Core BA at 0xffffffffffd00000 [8/16] { 11, 0x0, 0x02f, 0x0=
0081
},
  additional addresses: 0xffffffffffd0c000 0xffffffffffc00000
3. UL 550 Lasi Core RS-232 at 0xffffffffffd05000 [8/16/4] { 10, 0x0, 0x02=
f,
0x00
08c }
4. UL 550 Core SCSI at 0xffffffffffd06000 [8/16/5] { 10, 0x0, 0x02f, 0x00=
082
}
5. UL 350 Core LAN (802.3) at 0xffffffffffd07000 [8/16/6] { 10, 0x0, 0x02=
f,
0x00
08a }
6. UL 550 Core Centronics at 0xffffffffffd02000 [8/16/0] { 10, 0x0, 0x02f=
,
0x000
74 },  additional addresses: 0xffffffffffd01000 0xffffffffffd03000
7. UL 550 Core PS/2 Port at 0xffffffffffd08000 [8/16/7] { 10, 0x0, 0x02f,=

0x0008
4 }
8. UL 550 Core PS/2 Port at 0xffffffffffd08100 [8/16/8] { 10, 0x0, 0x02f,=

0x0008
4 }
9. UL 550 Core Wax BA at 0xffffffffffe00000 [8/20] { 11, 0x0, 0x031, 0x00=
08e
}
10. UL 550 Wax EISA BA at 0xfffffffffc000000 [8/20/5] { 11, 0x0, 0x031, 0=
x00090
},  additional addresses: 0xffffffffffc88000
11. UL 550 Wax Core RS-232 at 0xffffffffffe02000 [8/20/2] { 10, 0x0, 0x03=
1,
0x00
08c }
12. Bluefish Add-on FW-SCSI at 0xfffffffff1004000 [8/4] { 4, 0x1, 0x013,
0x00089
 }
13. Bluefish Add-on FW-SCSI at 0xfffffffff1008000 [8/8] { 4, 0x1, 0x013,
0x00089
 }
14. Bluefish Add-on FW-SCSI at 0xfffffffff100c000 [8/12] { 4, 0x1, 0x013,=

0x0008
9 }
15. U2-IOA BC GSC+ Port at 0xfffffffff103f000 [8/63] { 7, 0x1, 0x501, 0x0=
000c
}
16. U2-IOA BC Runway Port at 0xfffffffffff8a000 [10] { 12, 0xf, 0x580, 0x=
0000b
}
17. U2-IOA BC GSC+ Port at 0xfffffffff183f000 [10/63] { 7, 0x1, 0x501, 0x=
0000c
}
18. UL proc 2-way U180 1M/1M at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5aa,
0x00004
 }
19. UL proc 2-way U180 1M/1M at 0xfffffffffffa2000 [34] { 0, 0x0, 0x5aa,
0x00004
 }
20. Memory at 0xfffffffffffb1000 [49] { 1, 0x0, 0x07c, 0x00009 }
CONFIG_SMP=3Dn  ignoring additional CPUs
CPU: probe of 34 failed with error 1
CPU(s): 1 x PA8000 (PCX-U) at 180.000000 MHz
Setting cache flush threshold to e4540 (1 CPUs online)
Found U2 at 0xfffffffffff88000
Found U2 at 0xfffffffffff8a000
/usr/src/linux-2.6.12-rc2-pa2-050413/drivers/parisc/ccio-dma.c: failed to=

claim
CCIO bus address space (ffffffff00000000,ffffffffffffffff)
Lasi version 0 at 0xffffffffffd00000 found.
LED display at ffffffffffd0c000 registered
wax at 0xffffffffffe00000 found.
Wax EISA Adapter found at 0xfffffffffc000000
Enumerating EISA bus

Any idea?

Thanks in advance,
    Joel


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On Sat, Apr 09, 2005 at 01:19:35PM -0400, John David Anglin wrote:
> Well, your analysis in 17471 didn't convince me that a gcc code generation
> bug was involved.  I believe that if you try the change below that glibc
> will build with 3.3 and 3.4.  There was a warning generated by GCC.
> 
> I thought this was fixed in glibc.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
> 
> --- dl-machine.h.orig	2004-10-22 20:01:03.000000000 -0700
> +++ dl-machine.h	2004-10-22 21:32:30.000000000 -0700
> @@ -260,6 +260,7 @@
>  
>  #define RTLD_START \
>  /* Set up dp for any non-PIC lib constructors that may be called.  */	\
> +static struct link_map *set_dp (struct link_map *) __attribute__ ((used));\
>  static struct link_map *						\
>  set_dp (struct link_map *map)						\
>  {									\

It *is* fixed, if you look at the patches I posted that is part of the
diff against dl-machine.h.

Note: gcc 3.5 or higher is now required to build glibc.

c.

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On Fri, 2005-04-15 at 11:44 +0200, Joel Soete wrote:
> ncr53c720-0: rev 0xf irq 66
> ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
> scsi0 : ncr53c8xx-3.4.3g
> scsi: Device offlined - not ready after error recovery: host 0 channel 0
> id 0 lu

This too is known.  The ncr53c8xx driver doesn't work in 64 bit mode.

James


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Subject: [parisc-linux] [RC] Integrate LWS CAS into hppa-linux glibc.
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pa,

I have checked in a test into userspace/test-lws in CVS in order to
verify that my glibc implementation actually works before integrating it
with the build.

The test is 'atomic-test' and it makes use of 'atomic.h' which will be
added to the hppa-linux glibc build. Not in debian, but in a local
experimental build to check for regressions (and do more testing).

Can someone look at the code and give some comments?
Would it be clearer if I spelled out exactly how LWS CAS works and add
it to the wiki?

Note: I would rather have the LWS CAS return to userspace instead of
spinning on the gateway page, largely because we can't deliver signals
or schedule while it sits on the gateway.

c.

---
/* Copyright (C) 2003 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 2005.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <asm/errno.h>
#include <abort-instr.h>

#ifndef _BITS_ATOMIC_H
#define _BITS_ATOMIC_H	1

/* Use the kernel atomic light weight syscalls on hppa */ 

#define LWS "0xb0"
#define LWS_CAS 0x0
#define LWS_CLOBBER "r26", "r25", "r24", "r23", "r22", "r20", "r28", "r21", "memory"

/* prev = *addr;
   if (prev == old)
     *addr = new;
   return prev; */

/* The only basic operation needed is compare and exchange.  */
#define atomic_compare_and_exchange_val_acq(mem, newval, oldval) 	\
  ({									\
     int lws_errno = EAGAIN;						\
     int lws_ret;							\
     /* Catch bad users address, preread */				\
     lws_ret = *(int *)mem;						\
     while (lws_errno == EAGAIN)					\
     	lws_ret = lws_atomic_compare_and_swap(&lws_errno, LWS_CAS, 	\
						(unsigned int)mem,	\
						oldval, newval);	\
     if(lws_errno == EFAULT)						\
     	ABORT_INSTRUCTION;						\
     lws_ret;								\
   })

/* Implement compare_and_swap using a light-weight syscall */
#define lws_atomic_compare_and_swap(lws_errno, lwsnum, in0, in1, in2)	\
  ({									\
    int retval;								\
    int error;								\
    /* Make light-weight syscall */					\
    asm volatile(							\
	"copy   %3, %%r26\n\t"						\
	"copy   %4, %%r25\n\t"						\
	"copy   %5, %%r24\n\t"						\
	"ble    " LWS "(%%sr2, %%r0)\n\t"				\
	"copy   %2, %%r20\n\t"						\
	"stw    %%r28, %0\n\t"						\
	"stw    %%r21, %1\n\t"						\
	: "=m" (retval), "=m" (error)					\
        : "r" (lwsnum), "r" (in0), "r" (in1), "r" (in2)			\
	: LWS_CLOBBER							\
     );									\
    /* Set error */							\
    *lws_errno = (-1)*error;						\
    /* Equivalent return of the function */				\
    retval;								\
   })


#define atomic_compare_and_exchange_bool_acq(mem, newval, oldval) \
  ({									\
     int lws_errno = EAGAIN;						\
     int lws_ret;							\
     /* Catch bad users address, preread */				\
     lws_ret = *(int *)mem;						\
     while (lws_errno == EAGAIN)					\
     	lws_ret = lws_atomic_compare_and_swap(&lws_errno, LWS_CAS, 	\
						(unsigned int)mem,	\
						oldval, newval);	\
     if(lws_errno == EFAULT)						\
     	ABORT_INSTRUCTION;						\
     lws_ret == oldval;							\
   })

#endif	/* bits/atomic.h */
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On Wed, Apr 20, 2005 at 04:38:50PM +0200, Anders wrote:
> Linux Tulip driver version 1.1.13 (December 15, 2004)
> tulip0:  MII transceiver #1 config 3100 status 7849 advertising 01e1.
> eth1: Digital DS21140 Tulip rev 34 at 80000080, 00:30:6E:27:99:EC, IRQ 
> 20.
> tulip1:  MII transceiver #1 config 3100 status 786b advertising 01e1.
> eth2: Digital DS21140 Tulip rev 34 at 80000100, 00:30:6E:27:99:ED, IRQ 
> 21.
> 
> but when i try to ping something it gives me
> Dino 0xf1000000: stuck interrupt 2
> Dino 0xf1000000: stuck interrupt 6

IRQ routing is wrong. The card-mode dino support probably needs 
some love since we switched from the home-brew "IRQ region" support
I hacked together 5 years to the "generic" IRQ support willy
switched us over to late last year.

Feel free to hack around on drivers/parisc/dino.c.
Key part is in dino_isr() has to lookup the global index
before calling __do_IRQ(). IRQ 20 is obviously not connecting
to "stuck interrupt 2".

Issue is likely something in how dino_device.global_irq[] array
is (or is not) getting initialized in dino_assign_irq().
Particularly when dino_assign_irq() is called from dino_fixup_bus().

Enable DINO_DEBUG and see if you need to add more printk's to
sort that out.

hth,
grant
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Hi all,

I just noticed this small typo:
--- arch/parisc/kernel/head.S.Orig      2005-04-20 18:46:57.000000000 +02=
00
+++ arch/parisc/kernel/head.S   2005-04-21 08:28:11.000000000 +0200
@@ -260,7 +260,7 @@
 
        .align          256
 aligned_rfi:
-       ssm             0,0
+       ssm             0, %r0
        nop             /* 1 */
        nop             /* 2 */
        nop             /* 3 */
=3D=3D=3D=3D<>=3D=3D=3D=3D

Hth,
    Joel

PS: is there some insterest in some white space cleanup in those *.S 


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On Thu, Apr 21, 2005 at 08:39:13AM +0200, Joel Soete wrote:
> -       ssm             0,0
> +       ssm             0, %r0

Joel,
Amusing you should just fix one...

grundler <509>pwd
/usr/src/linux-2.6/arch/parisc/kernel
grundler <510>fgrep ssm *.S | fgrep 0,0 | wc -l
337

Caveat: 334 of those are in perf_asm.S which isn't functional.

I'm not inclined to change the remaining three since the assembler
obviously accepts it.

> PS: is there some insterest in some white space cleanup in those *.S

Hrm...not from me.
My priorities are:
o getting pa8800 stable (latest kernels still occasionally segfaults.)
o get MPT/Fusion driver working on parisc (HPMCs on IOC reset)
o MSI support on parisc.
o stable ad1889 (workstation audio)
o FX-E support (ok, that's wishful thinking now...)

thanks,
grant
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> -- Original Message --
> Date: Fri, 22 Apr 2005 00:36:49 -0600
> From: Grant Grundler <grundler@parisc-linux.org>
> To: Joel Soete <soete.joel@tiscali.be>
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] head.S: a small typo
> 
> 
> On Thu, Apr 21, 2005 at 08:39:13AM +0200, Joel Soete wrote:
> > -       ssm             0,0
> > +       ssm             0, %r0
> 
> Joel,
> Amusing you should just fix one...
> 
Just investigate one file at  a time ;-)

> grundler <509>pwd
> /usr/src/linux-2.6/arch/parisc/kernel
> grundler <510>fgrep ssm *.S | fgrep 0,0 | wc -l
> 337
> 
Do you want I prepare other patches too ?

> Caveat: 334 of those are in perf_asm.S which isn't functional.
> 
> I'm not inclined to change the remaining three since the assembler
> obviously accepts it.
Yes curiously?

> 
> > PS: is there some insterest in some white space cleanup in those *.S
> 
> Hrm...not from me.
> My priorities are:
> o getting pa8800 stable (latest kernels still occasionally segfaults.)
Isn't it related to the generic pb encounter elsewhere?
(all my system 32bit mainly make from time to time panic: that was in fac=
t
what I was trying to study, when interruptions are enabled and disabled (=
PSW
I bit if I well understand?)...) 

> o get MPT/Fusion driver working on parisc (HPMCs on IOC reset)
> o MSI support on parisc.
> o stable ad1889 (workstation audio)
> o FX-E support (ok, that's wishful thinking now...)
> 
Ah you finaly found some doc ?

Thanks,
    Joel


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On Fri, Apr 22, 2005 at 06:04:03PM +0200, Joel Soete wrote:
> > grundler <509>pwd
> > /usr/src/linux-2.6/arch/parisc/kernel
> > grundler <510>fgrep ssm *.S | fgrep 0,0 | wc -l
> > 337
>
> Do you want I prepare other patches too ?

No, but thanks anyway.

> > My priorities are:
> > o getting pa8800 stable (latest kernels still occasionally segfaults.)
>
> Isn't it related to the generic pb encounter elsewhere?
> (all my system 32bit mainly make from time to time panic: that was in fact
> what I was trying to study, when interruptions are enabled and disabled (PSW
> I bit if I well understand?)...)

I don't know but I'm skeptical it's generic core issue.
If it were generic, I would expect to see similar symptoms on ia64
and x86 and I don't.

> > o get MPT/Fusion driver working on parisc (HPMCs on IOC reset)
> > o MSI support on parisc.
> > o stable ad1889 (workstation audio)
> > o FX-E support (ok, that's wishful thinking now...)
>
> Ah you finaly found some doc ?

No...just the GPL'd FX/5 and FX/10 drivers that have been available
for a long time but don't seem to be sufficient to write a new driver
for parisc.

grant
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> It was why ifdef __LP64__ of align_rfi

This is point 2 on page F-4 and F-5 of the arch.

#ifdef __LP64__ /* move to psw.h? */
#define         PSW_BITS        PSW_Q+PSW_I+PSW_D+PSW_P+PSW_R
#else
#define         PSW_BITS        PSW_SM_Q
#endif

$rfi:
        /* turn off troublesome PSW bits */
	rsm             PSW_BITS,%r0

	/* kernel PSW:
	 *  - no interruptions except HPMC and TOC (which are handled by PDC)
	 *  - Q bit set (IODC / PDC interruptions)
	 *  - big-endian
	 *  - virtually mapped
	 */

The above code turns off the Q bit in both 32 and 64 bit kernels.  Thus,
it's not clear why this is only needed in a 64-bit kernel.  Indeed pacache.S
uses this sequence.  The comment seems to imply that at one time the Q
bit was set in this code.

The clearing rsm can't be within 8 instructions of a page boundary.  Thus,
it seems the alignment of 256 can be reduced to 128 in head.S.  We also
seem to have one more nop than needed.

The alignment of 128 used for flush_tlb_all_local and disable_sr_hashing_asm
might be too small.  For example, the second rsm in disable_sr_hashing_asm
is 31 instructions after the first.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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I know this question isn't exactly related to linux, but I figured this would be
a good place to ask and the box *is* running Linux :P

I recently managed to get a HP C3600 workstation. It had been working fine for
the last week or so on serial console. I decided to try to get keyboard/video
working. I picked up one of those PS/2->USB adapters that handles the USB stuff
for the keyboard. I plugged in the keyboard and stuck in an ATI Rage II Mach64
GT card that I had laying around.

The machine came up just fine but it kept going to serial console. The video
card was detected:

Information Menu: Enter command > io

I/O MODULE INFORMATION
                                                                     IODC IODC
Path         Decimal     Type                  Location   HVER SVER  Vers Dep
------------ ----------- --------------------- ---------- ---- ----  ---- ----
<snip>
PCI6         10/1/6/0    VGA                   slot 6     0070 8500  0x01 0x00

I ran a few more information commands and walked away leaving the machine
running. When I came back ~15 minutes later, I saw the following on the serial
console:

Main Menu: Enter command > pcoq000000f0 f000b748
    000000f0 f000b74c
ior 00001f38
iir 53c63e73
pcoq000000f0 f000b748
    000000f0 f000b74c
ior 00001f38
iir 53c63e73
(same 4 lines repeating 6 more times)
pcoq000000f0 f000b748
    000

At this point, the box was locked up (not responding to any input over serial).
I shut it off and turned it back on. I hear the fans and HD spinning up, but all
I get on the LCD is blocks across the top row, and nothing comes over the
serial. I've unplugged the keyboard and removed the video card, but that hasn't
helped. Does anyone have any idea what happened or how to fix it?

-- 
Andrew Gaffney                            http://dev.gentoo.org/~agaffney/
Gentoo Linux Developer                                   Installer Project
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Xref: news.gmane.org gmane.linux.ports.parisc:22647

Hi pa-ckers

A quick "sounder" notice to let those of you who don't already know, that
LaMont Jones and myself are working in our spare time on porting Ubuntu
Linux (www.ubuntulinux.org) to hppa.

There's an unofficial website at http://ubuntu-hppa.pateam.org/ with some
data on the progress of that port.

Currently we have finished to (partially) build Hoary (almost all of
main, and most of universe, all in all we're approx 95% up-to-date), and
it's available for download. There are some installation instructions as
well since we don't have yet an installer, of course, these instructions
are reserved to "developers", knowledgeable people willing to
test/help/debug;)

We are now moving forward to get Breezy in shape, that implies in
particular fixing the installer, as well as a few other things (such as
bootstraping gcc-4.0, since Breezy will be built against gcc-4.0), and
fixing firefox (dies during post-install).

We should sort out an updated TODO list pretty soon (the one on the
website needs some refreshing :), so stay tuned.

Anyway, I just wanted to let you know that something was underway, and
that we might need some help in the near future ;)

Greetings

T-Bone
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Xref: news.gmane.org gmane.linux.ports.parisc:22648

Hello Dave,

> 
> >         nop             /* 8 */
> > -#endif
> 
> The arch document (page F-4) says that you only need 7 instructions
> between ssm and rsm.
> 
Yes for the following bacth (this time with 64bits included on b2k only n=
ot
yet for d380 sorry next step)

That said it works also (32 bit up and smp, 64bit up)
the same if I replace .align 256 by 128 no pb
(btw I disasemble the resulting kernel text and this code seems to be onl=
y
called once and very early)

btw I don't more understand why the following ifdef (in the same head.S):=

#ifdef __LP64__ /* move to psw.h? */   
#define         PSW_BITS        PSW_Q+PSW_I+PSW_D+PSW_P+PSW_R
#else
#define         PSW_BITS        PSW_SM_Q
#endif

Oth I still have thousand of detailed questions but started to the main o=
ne:
your concern in a previous mail;
if I well understand it's located in 2 places in pacache.S and one would
be in:
[snip]
        .align  128

        .export disable_sr_hashing_asm,code

disable_sr_hashing_asm:
        .proc
        .callinfo NO_CALLS
        .entry

        /* Switch to real mode */

        ssm             0, %r0                  /* relied upon translatio=
n!
*/
        nop
        nop
        nop
        nop
        nop
        nop
        nop

        rsm             (PSW_SM_Q|PSW_SM_I), %r0 /* disable Q&I to load t=
he
iia queue */
        ldil            L%REAL_MODE_PSW, %r1
        ldo             R%REAL_MODE_PSW(%r1), %r1
        mtctl           %r1, %cr22
        mtctl           %r0, %cr17              /* Clear IIASQ tail */
        mtctl           %r0, %cr17              /* Clear IIASQ head */
        ldil            L%PA(1f), %r1
        ldo             R%PA(1f)(%r1), %r1
        mtctl           %r1, %cr18              /* IIAOQ head */
        rfi
        nop

1:      cmpib,=3D,n       SRHASH_PCXST, %r26,srdis_pcxs
        cmpib,=3D,n       SRHASH_PCXL, %r26,srdis_pcxl
        cmpib,=3D,n       SRHASH_PA20, %r26,srdis_pa20
        b,n             srdis_done
[snip]
srdis_done:

        /* Switch back to virtual mode */

        rsm             PSW_SM_Q, %r0           /* clear Q bit to load ii=
a
queue */
        ldil            L%KERNEL_PSW, %r1
        ldo             R%KERNEL_PSW(%r1), %r1
        mtctl           %r1, %cr22
        mtctl           %r0, %cr17              /* Clear IIASQ tail */
        mtctl           %r0, %cr17              /* Clear IIASQ head */
        ldil            L%(2f), %r1
        ldo             R%(2f)(%r1), %r1
        mtctl           %r1, %cr18              /* IIAOQ head */
        ldo             4(%r1), %r1
        mtctl           %r1, %cr18              /* IIAOQ tail */
        rfi
        nop

2:      bv              %r0(%r2)
        nop
        .exit
[snip]

Always if I well understand this last srdis_done would looks like:
srdis_done:


        /* Switch back to virtual mode */

        ssm             0, %r0                  /* relied upon translatio=
n!
*/
        nop
        nop
        nop
        nop
        nop
        nop
        nop

        rsm             PSW_SM_Q, %r0           /* clear Q bit to load ii=
a
queue */
        ldil            L%KERNEL_PSW, %r1
        ldo             R%KERNEL_PSW(%r1), %r1
        mtctl           %r1, %cr22
        mtctl           %r0, %cr17              /* Clear IIASQ tail */
        mtctl           %r0, %cr17              /* Clear IIASQ head */
[snip]

Thanks in advance,
    Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:22649

> btw I don't more understand why the following ifdef (in the same head.S):
> #ifdef __LP64__ /* move to psw.h? */   
> #define         PSW_BITS        PSW_Q+PSW_I+PSW_D+PSW_P+PSW_R
> #else
> #define         PSW_BITS        PSW_SM_Q
> #endif

I also don't understand the difference between the 32 and 64 bit cases.
There's probably a reason to turn off I, D, P and R in these sequences.
For example, a flush instruction cache instruction with the D bit set
affects the relied upon translation.  So, the question would be why the
bits are not turned off in the 32-bit case.  It may be because the PDCs
differ in their handling of these bits.  I'm pretty sure that the 64-bit
define would work in the 32-bit case.  The bits are only off through to
the rfi which then sets new bits.

The bits for the 64-bit case probably should be written using the "PSW_SM"
defines.  There's no difference for the Q, I, D, P and R bits but the SM
defines are for the "sm" instructions.

>         b,n             srdis_done
> [snip]

I believe that you should align srdis_done as follows:

	.align 128

You would then need to add a branch and nop to get there.

> srdis_done:
> 
> 
>         /* Switch back to virtual mode */
> 
>         ssm             0, %r0                  /* relied upon translation!
> */
>         nop
>         nop
>         nop
>         nop
>         nop
>         nop
>         nop
> 
>         rsm             PSW_SM_Q, %r0           /* clear Q bit to load iia
> queue */
>         ldil            L%KERNEL_PSW, %r1
>         ldo             R%KERNEL_PSW(%r1), %r1
>         mtctl           %r1, %cr22
>         mtctl           %r0, %cr17              /* Clear IIASQ tail */
>         mtctl           %r0, %cr17              /* Clear IIASQ head */
> [snip]
> 
> Thanks in advance,
>     Joel
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [parisc-linux] head.S: a small typo
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On Tue, Apr 26, 2005 at 07:36:43PM +0200, Joel Soete wrote:
> (btw I disasemble the resulting kernel text and this code seems to be only
> called once and very early)
> 

This is the kernel entry point from the bootloader. It sets things up then 
jumps to init/main.c:start_kernel().

-- 
Kyle McMartin
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On Tue, Apr 26, 2005 at 08:29:25PM -0600, Grant Grundler wrote:
> The example code is just that, an example:
> 	SSM	0,gr0	; initial RSM, SSM, or MTSM
> ...
> 
> AFAICT, that sequence does nothing but burn some cycles.

*sigh*. The ssm 0,0/nop * 8/rsm sequence isn't so obvious.
Richard Hirst added this comment to entry.S in 2001:
        * The ssm is necessary due to a PCXT bug

http://lists.parisc-linux.org/hypermail/parisc-linux-cvs/3628.html

Richard, any clue what the bug is?
I don't have a PCX-T ERS or errata sheet to look this up.

thanks,
grant
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Hello Grant,
> 
mmm aleady reach to reboot without pb (b180 32bit and b2k 64bit) :-)

unfortunately b180 pb is always there:
Backtrace:
 [<1015146c>] cache_grow+0xd4/0x1ac
 [<101516ec>] cache_alloc_refill+0x1a8/0x26c
 [<10151a10>] kmem_cache_alloc+0x48/0x4c
 [<101b634c>] ext3_alloc_inode+0x18/0x40
 [<10187158>] alloc_inode+0x28/0x1a0
 [<10187dac>] new_inode+0x10/0x8c
 [<101aaf90>] ext3_new_inode+0xc4/0x744
 [<101b43a0>] ext3_mkdir+0xc0/0x38c
 [<1017c8c8>] vfs_mkdir+0xcc/0x12c
 [<1017c9ec>] sys_mkdir+0xc4/0x120
 [<1010d120>] syscall_exit+0x0/0x14


Kernel Fault: Code=3D15 regs=3D14cb0540 (Addr=3D27b274cc)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001110011100001111 Not tainted
r00-03  00000000 10517e58 1015146c 105044f8
r04-07  17623000 100e36e0 00000010 00000050
r08-11  00000001 14cd43c0 1216d5d4 000001ed
r12-15  16eccdd4 000041ed 0004db4e 000edec8
r16-19  000edfc8 000edda8 00000000 27b274f8
r20-23  27b274bc 000001bc 000001c8 00000050
r24-27  105044bc 17623000 100e36e0 10400010
r28-31  27b274bc 00000000 14cb0540 10153dc4
sr0-3   00000000 00000000 00000000 00000a4b
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 101511f4 101511f8
 IIR: 6b800020    ISR: 00000000  IOR: 27b274cc
 CPU:        0   CR30: 14cb0000 CR31: 10464000
 ORIG_R28: 00000000
 IAOQ[0]: alloc_slabmgmt+0x30/0x6c
 IAOQ[1]: alloc_slabmgmt+0x34/0x6c
 RP(r2): cache_grow+0xd4/0x1ac
Kernel panic - not syncing: Kernel Fault
 <0>Rebooting in 120 seconds..

Sorry,
    Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:22653

On Tue, Apr 26, 2005 at 11:20:55PM -0600, Grant Grundler wrote:
> *sigh*. The ssm 0,0/nop * 8/rsm sequence isn't so obvious.
> Richard Hirst added this comment to entry.S in 2001:
>         * The ssm is necessary due to a PCXT bug

Here's a new patch WITHOUT the s/__lp64__/CONFIG_64BIT/ changes.

Please review.

grant


Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/entry.S,v
retrieving revision 1.27
diff -u -p -r1.27 entry.S
--- arch/parisc/kernel/entry.S	1 Apr 2005 07:37:25 -0000	1.27
+++ arch/parisc/kernel/entry.S	27 Apr 2005 06:27:57 -0000
@@ -893,9 +893,6 @@ _switch_to_ret:
 	 * this way, then we will need to copy %sr3 in to PT_SR[3..7], and
 	 * adjust IASQ[0..1].
 	 *
-	 * Note that the following code uses a "relied upon translation".
-	 * See the parisc ACD for details. The ssm is necessary due to a
-	 * PCXT bug.
 	 */
 
 	.align 4096
@@ -990,24 +987,18 @@ intr_restore:
 	rest_fp         %r1
 	rest_general    %r29
 
-	/* Create a "relied upon translation" PA 2.0 Arch. F-5 */
-	ssm		0,%r0
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
+	pcxt_ssm_bug
 	tophys_r1       %r29
-	rsm             (PSW_SM_Q|PSW_SM_P|PSW_SM_D|PSW_SM_I),%r0
+	rsm             PSW_SM_QUIET,%r0	/* prepare for rfi */
 
 	/* Restore space id's and special cr's from PT_REGS
-	 * structure pointed to by r29 */
+	 * structure pointed to by r29
+	 */
 	rest_specials	%r29
 
-	/* Important: Note that rest_stack restores r29
-	 * last (we are using it)! It also restores r1 and r30. */
+	/* IMPORTANT: rest_stack restores r29 last (we are using it)!
+	 * It also restores r1 and r30.
+	 */
 	rest_stack
 
 	rfi
Index: arch/parisc/kernel/head.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head.S,v
retrieving revision 1.11
diff -u -p -r1.11 head.S
--- arch/parisc/kernel/head.S	1 Nov 2004 16:15:50 -0000	1.11
+++ arch/parisc/kernel/head.S	27 Apr 2005 06:27:57 -0000
@@ -254,32 +254,14 @@ $is_pa20:
 $install_iva:
 	mtctl		%r10,%cr14
 
-#ifdef __LP64__
 	b		aligned_rfi
 	nop
 
-	.align          256
+	.align          128
 aligned_rfi:
-	ssm             0,0
-	nop             /* 1 */
-	nop             /* 2 */
-	nop             /* 3 */
-	nop             /* 4 */
-	nop             /* 5 */
-	nop             /* 6 */
-	nop             /* 7 */
-	nop             /* 8 */
-#endif
-
-#ifdef __LP64__ /* move to psw.h? */
-#define		PSW_BITS	PSW_Q+PSW_I+PSW_D+PSW_P+PSW_R
-#else
-#define		PSW_BITS	PSW_SM_Q
-#endif
-
-$rfi:	
-	/* turn off troublesome PSW bits */
-	rsm		PSW_BITS,%r0
+	pcxt_ssm_bug
+	rsm		PSW_SM_QUIET,%r0	/* off troublesome PSW bits */
+	/* Don't need NOPs, have 8 compliant insn below */
 
 	/* kernel PSW:
 	 *  - no interruptions except HPMC and TOC (which are handled by PDC)
Index: arch/parisc/kernel/pacache.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/pacache.S,v
retrieving revision 1.17
diff -u -p -r1.17 pacache.S
--- arch/parisc/kernel/pacache.S	18 Apr 2005 05:52:31 -0000	1.17
+++ arch/parisc/kernel/pacache.S	27 Apr 2005 06:27:57 -0000
@@ -62,25 +62,10 @@ flush_tlb_all_local:
 	 * to happen in real mode with all interruptions disabled.
 	 */
 
-	/*
-	 * Once again, we do the rfi dance ... some day we need examine
-	 * all of our uses of this type of code and see what can be
-	 * consolidated.
-	 */
-
-	rsm		PSW_SM_I, %r19		/* relied upon translation! PA 2.0 Arch. F-5 */
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
+	pcxt_ssm_bug
 	
-	rsm		PSW_SM_Q, %r0		/* Turn off Q bit to load iia queue */
-	ldil		L%REAL_MODE_PSW, %r1
-	ldo		R%REAL_MODE_PSW(%r1), %r1
-	mtctl		%r1, %cr22
+	/* relied upon translation! PA 2.0 Arch. F-4 and F-5 */
+	rsm		PSW_SM_Q+PSW_SM_I, %r0	/* prep to load iia queue */
 	mtctl		%r0, %cr17		/* Clear IIASQ tail */
 	mtctl		%r0, %cr17		/* Clear IIASQ head */
 	ldil		L%PA(1f), %r1
@@ -88,6 +73,8 @@ flush_tlb_all_local:
 	mtctl		%r1, %cr18		/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18		/* IIAOQ tail */
+	load32		REAL_MODE_PSW, %r1
+	mtctl		%r1, %cr22
 	rfi
 	nop
 
@@ -178,15 +165,14 @@ fdtonemiddle:					/* Loop if LOOP = 1 */
 	ADDIB>		-1, %r22, fdtoneloop	/* Outer loop count decr */
 	add		%r21, %r20, %r20	/* increment space */
 
-fdtdone:
 
-	/* Switch back to virtual mode */
+fdtdone:
+	/*
+	 * Switch back to virtual mode
+	 */
+	pcxt_ssm_bug
 
-	rsm		PSW_SM_Q, %r0		/* clear Q bit to load iia queue */
-	ldil		L%KERNEL_PSW, %r1
-	ldo		R%KERNEL_PSW(%r1), %r1
-	or		%r1, %r19, %r1		/* Set I bit if set on entry */
-	mtctl		%r1, %cr22
+	rsm		PSW_SM_Q+PSW_SM_I, %r0	/* prep to load iia queue */
 	mtctl		%r0, %cr17		/* Clear IIASQ tail */
 	mtctl		%r0, %cr17		/* Clear IIASQ head */
 	ldil		L%(2f), %r1
@@ -194,6 +180,9 @@ fdtdone:
 	mtctl		%r1, %cr18		/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18		/* IIAOQ tail */
+	load32		KERNEL_PSW, %r1
+	or		%r1, %r19, %r1		/* Set I bit if set on entry */
+	mtctl		%r1, %cr22
 	rfi
 	nop
 
@@ -238,7 +227,7 @@ fioneloop:					/* Loop if LOOP = 1 */
 
 fisync:
 	sync
-	mtsm		%r22
+	mtsm		%r22			/* restore I-bit */
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -281,7 +270,7 @@ fdoneloop:					/* Loop if LOOP = 1 */
 fdsync:
 	syncdma
 	sync
-	mtsm		%r22
+	mtsm		%r22			/* restore I-bit */
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -1005,21 +994,12 @@ disable_sr_hashing_asm:
 	.callinfo NO_CALLS
 	.entry
 
-	/* Switch to real mode */
+	/*
+	 * Switch to real mode
+	 */
+	pcxt_ssm_bug
 
-	ssm		0, %r0			/* relied upon translation! */
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	
-	rsm		(PSW_SM_Q|PSW_SM_I), %r0 /* disable Q&I to load the iia queue */
-	ldil		L%REAL_MODE_PSW, %r1
-	ldo		R%REAL_MODE_PSW(%r1), %r1
-	mtctl		%r1, %cr22
+	rsm		PSW_SM_Q+PSW_SM_I, %r0	/* prep to load iia queue */
 	mtctl		%r0, %cr17		/* Clear IIASQ tail */
 	mtctl		%r0, %cr17		/* Clear IIASQ head */
 	ldil		L%PA(1f), %r1
@@ -1027,6 +1007,8 @@ disable_sr_hashing_asm:
 	mtctl		%r1, %cr18		/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18		/* IIAOQ tail */
+	load32		REAL_MODE_PSW, %r1
+	mtctl		%r1, %cr22
 	rfi
 	nop
 
@@ -1065,13 +1047,10 @@ srdis_pa20:
 	.word		0x145c1840		/* mtdiag %r28, %dr2 */
 
 srdis_done:
-
 	/* Switch back to virtual mode */
+	pcxt_ssm_bug
 
-	rsm		PSW_SM_Q, %r0		/* clear Q bit to load iia queue */
-	ldil		L%KERNEL_PSW, %r1
-	ldo		R%KERNEL_PSW(%r1), %r1
-	mtctl		%r1, %cr22
+	rsm		PSW_SM_Q+PSW_SM_I, %r0	/* prep to load iia queue */
 	mtctl		%r0, %cr17		/* Clear IIASQ tail */
 	mtctl		%r0, %cr17		/* Clear IIASQ head */
 	ldil 	   	L%(2f), %r1
@@ -1079,6 +1058,8 @@ srdis_done:
 	mtctl		%r1, %cr18		/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18		/* IIAOQ tail */
+	load32		KERNEL_PSW, %r1
+	mtctl		%r1, %cr22
 	rfi
 	nop
 
Index: arch/parisc/kernel/real2.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/real2.S,v
retrieving revision 1.17
diff -u -p -r1.17 real2.S
--- arch/parisc/kernel/real2.S	7 Jan 2005 21:14:33 -0000	1.17
+++ arch/parisc/kernel/real2.S	27 Apr 2005 06:27:57 -0000
@@ -147,17 +147,9 @@ restore_control_regs:
 	.text
 rfi_virt2real:
 	/* switch to real mode... */
-	ssm		0,0		/* See "relied upon translation" */
-	nop				/* PA 2.0 Arch. F-5 */
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
+	pcxt_ssm_bug
 	
-	rsm             (PSW_SM_Q|PSW_SM_I),%r0  /* disable Q & I bits to load iia queue */
+	rsm             PSW_SM_Q+PSW_SM_I,%r0  /* prep to load iia queue */
 	mtctl		%r0, %cr17	/* Clear IIASQ tail */
 	mtctl		%r0, %cr17	/* Clear IIASQ head */
 	load32		PA(rfi_v2r_1), %r1
@@ -184,17 +176,9 @@ rfi_v2r_1:
 	.text
 	.align 128
 rfi_real2virt:
-	ssm		0,0		/* See "relied upon translation" */
-	nop				/* PA 2.0 Arch. F-5 */
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	
-	rsm             PSW_SM_Q,%r0    /* disable Q bit to load iia queue */
+	pcxt_ssm_bug
+
+	rsm             PSW_SM_Q+PSW_SM_I,%r0    /* prep to load iia queue */
 	mtctl		%r0, %cr17	/* Clear IIASQ tail */
 	mtctl		%r0, %cr17	/* Clear IIASQ head */
 	load32		(rfi_r2v_1), %r1
Index: include/asm-parisc/assembly.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/assembly.h,v
retrieving revision 1.10
diff -u -p -r1.10 assembly.h
--- include/asm-parisc/assembly.h	4 Feb 2005 19:34:33 -0000	1.10
+++ include/asm-parisc/assembly.h	27 Apr 2005 06:27:59 -0000
@@ -450,5 +450,23 @@
 	REST_CR	(%cr22, PT_PSW	(\regs))
 	.endm
 
+#if defined(CONFIG_PA7000)
+	.macro	pcxt_ssm_bug
+	/* Create a "relied upon translation" PA 2.0 Arch. page F-4 and F-5
+	* The ssm is necessary due to a PCXT bug. Ie not needed for 64-bit.
+	*/
+	ssm	0,%r0
+	nop	/* 1 */
+	nop	/* 2 */
+	nop	/* 3 */
+	nop	/* 4 */
+	nop	/* 5 */
+	nop	/* 6 */
+	nop	/* 7 */
+	.endm
+#else
+#define pcxt_ssm_bug	/* Thank $DEITY. You don't have brain damaged HW. */
+#endif
+
 #endif /* __ASSEMBLY__ */
 #endif
Index: include/asm-parisc/psw.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/psw.h,v
retrieving revision 1.1
diff -u -p -r1.1 psw.h
--- include/asm-parisc/psw.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/psw.h	27 Apr 2005 06:27:59 -0000
@@ -9,6 +9,16 @@
 #define	PSW_G	0x00000040	/* PA1.x only */
 #define PSW_O	0x00000080	/* PA2.0 only */
 
+/* ssm/rsm instructions number PSW_W and PSW_E differently */
+#define PSW_SM_I	PSW_I	/* Enable External Interrupts */
+#define PSW_SM_D	PSW_D
+#define PSW_SM_P	PSW_P
+#define PSW_SM_Q	PSW_Q	/* Enable Interrupt State Collection */
+#define PSW_SM_R	PSW_R	/* Enable Recover Counter Trap */
+#define PSW_SM_W	0x200	/* PA2.0 only : Enable Wide Mode */
+
+#define PSW_SM_QUIET	PSW_SM_R+PSW_SM_Q+PSW_SM_P+PSW_SM_D+PSW_SM_I
+
 #define PSW_CB	0x0000ff00
 
 #define	PSW_M	0x00010000
@@ -30,33 +40,21 @@
 #define	PSW_Z	0x40000000	/* PA1.x only */
 #define	PSW_Y	0x80000000	/* PA1.x only */
 
-#ifdef __LP64__
-#define PSW_HI_CB 0x000000ff    /* PA2.0 only */
+#ifdef CONFIG_64BIT
+#  define PSW_HI_CB 0x000000ff    /* PA2.0 only */
 #endif
 
-/* PSW bits to be used with ssm/rsm */
-#define PSW_SM_I        0x1
-#define PSW_SM_D        0x2
-#define PSW_SM_P        0x4
-#define PSW_SM_Q        0x8
-#define PSW_SM_R        0x10
-#define PSW_SM_F        0x20
-#define PSW_SM_G        0x40
-#define PSW_SM_O        0x80
-#define PSW_SM_E        0x100
-#define PSW_SM_W        0x200
-
-#ifdef __LP64__
-#  define USER_PSW      (PSW_C | PSW_Q | PSW_P | PSW_D | PSW_I)
-#  define KERNEL_PSW    (PSW_W | PSW_C | PSW_Q | PSW_P | PSW_D)
-#  define REAL_MODE_PSW (PSW_W | PSW_Q)
-#  define USER_PSW_MASK (PSW_W | PSW_T | PSW_N | PSW_X | PSW_B | PSW_V | PSW_CB)
-#  define USER_PSW_HI_MASK (PSW_HI_CB)
-#else
-#  define USER_PSW      (PSW_C | PSW_Q | PSW_P | PSW_D | PSW_I)
-#  define KERNEL_PSW    (PSW_C | PSW_Q | PSW_P | PSW_D)
-#  define REAL_MODE_PSW (PSW_Q)
-#  define USER_PSW_MASK (PSW_T | PSW_N | PSW_X | PSW_B | PSW_V | PSW_CB)
+#ifdef CONFIG_64BIT
+#  define USER_PSW_HI_MASK	PSW_HI_CB
+#  define WIDE_PSW		PSW_W
+#else 
+#  define WIDE_PSW		0
 #endif
+
+/* Used when setting up for rfi */
+#define KERNEL_PSW    (WIDE_PSW | PSW_C | PSW_Q | PSW_P | PSW_D)
+#define REAL_MODE_PSW (WIDE_PSW | PSW_Q)
+#define USER_PSW_MASK (WIDE_PSW | PSW_T | PSW_N | PSW_X | PSW_B | PSW_V | PSW_CB)
+#define USER_PSW      (PSW_C | PSW_Q | PSW_P | PSW_D | PSW_I)
 
 #endif
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Xref: news.gmane.org gmane.linux.ports.parisc:22654

On Wed, Apr 27, 2005 at 09:18:31AM +0200, Andy Walker wrote:
> Make that $DEITY - or is this the weight-watchers version ;-)

hehe. fixed.

thanks,
grant
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Xref: news.gmane.org gmane.linux.ports.parisc:22655

On Tue, Apr 26, 2005 at 11:20:55PM -0600, Grant Grundler wrote:
> > The example code is just that, an example:
> > 	SSM	0,gr0	; initial RSM, SSM, or MTSM
> > ...
> > 
> > AFAICT, that sequence does nothing but burn some cycles.
> 
> *sigh*. The ssm 0,0/nop * 8/rsm sequence isn't so obvious.
> Richard Hirst added this comment to entry.S in 2001:
>         * The ssm is necessary due to a PCXT bug


Regardless of what this is for, the following patch adds pcxt_ssm_bug
macro to assembly.h. pcxt_ssm_bug is only enabled for CONFIG_PA7000
which is only enabled for generic 32-bit kernel.

I've added pcxt_ssm_bug use to all the locations I could
find where PSW_SM_Q was being twiddled. Until someone can
tell me what the bug is exactly, my assumption is it
is needed for all cases where we "rsm PSW_SM_Q" and not
just at init time.

I've also tried to unify all the RFI asm into a similar layout
that could be (hopefully) replaced with a macro in a future step.
And I've made them all use "PSW_SM_Q+PSW_SM_I" just to be consistent.

I apologize in advance since this patch also replaces __LP64__
with CONFIG_64BIT. I thought it would only be a few but it
turned out to interfer with the patch.

I can split out CONFIG_64BIT changes if someone really needs that
before reviewing it.  It's just too late tonight for me to do it.

Can the asm gurus please closely review this patch?

I don't plan on committing this before it's been tested too.
I've only compiled kernels with it so far.

thanks,
grant


Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/entry.S,v
retrieving revision 1.27
diff -u -p -r1.27 entry.S
--- arch/parisc/kernel/entry.S	1 Apr 2005 07:37:25 -0000	1.27
+++ arch/parisc/kernel/entry.S	27 Apr 2005 06:27:57 -0000
@@ -37,7 +37,7 @@
 #include <asm/unistd.h>
 #include <asm/thread_info.h>
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 #define CMPIB           cmpib,*
 #define CMPB            cmpb,*
 #define COND(x)		*x
@@ -214,7 +214,7 @@
 	va  = r8	/* virtual address for which the trap occured */
 	spc = r24	/* space for which the trap occured */
 
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
 
 	/*
 	 * itlb miss interruption handler (parisc 1.1 - 32 bit)
@@ -236,7 +236,7 @@
 
 	.macro	itlb_20 code
 	mfctl	%pcsq, spc
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	b       itlb_miss_20w
 #else
 	b	itlb_miss_20
@@ -246,7 +246,7 @@
 	.align		32
 	.endm
 	
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
 	/*
 	 * naitlb miss interruption handler (parisc 1.1 - 32 bit)
 	 *
@@ -283,7 +283,7 @@
 	.macro	naitlb_20 code
 
 	mfctl	%isr,spc
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	b       itlb_miss_20w
 #else
 	b	itlb_miss_20
@@ -296,7 +296,7 @@
 	.align		32
 	.endm
 	
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
 	/*
 	 * dtlb miss interruption handler (parisc 1.1 - 32 bit)
 	 */
@@ -318,7 +318,7 @@
 	.macro	dtlb_20 code
 
 	mfctl	%isr, spc
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	b       dtlb_miss_20w
 #else
 	b	dtlb_miss_20
@@ -328,7 +328,7 @@
 	.align		32
 	.endm
 	
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
 	/* nadtlb miss interruption handler (parisc 1.1 - 32 bit) */
 
 	.macro	nadtlb_11 code
@@ -346,7 +346,7 @@
 	.macro	nadtlb_20 code
 
 	mfctl	%isr,spc
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	b       nadtlb_miss_20w
 #else
 	b       nadtlb_miss_20
@@ -356,7 +356,7 @@
 	.align		32
 	.endm
 	
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
 	/*
 	 * dirty bit trap interruption handler (parisc 1.1 - 32 bit)
 	 */
@@ -378,7 +378,7 @@
 	.macro	dbit_20 code
 
 	mfctl	%isr,spc
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	b       dbit_trap_20w
 #else
 	b	dbit_trap_20
@@ -391,7 +391,7 @@
 	/* The following are simple 32 vs 64 bit instruction
 	 * abstractions for the macros */
 	.macro		EXTR	reg1,start,length,reg2
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	extrd,u		\reg1,32+\start,\length,\reg2
 #else
 	extrw,u		\reg1,\start,\length,\reg2
@@ -399,7 +399,7 @@
 	.endm
 
 	.macro		DEP	reg1,start,length,reg2
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	depd		\reg1,32+\start,\length,\reg2
 #else
 	depw		\reg1,\start,\length,\reg2
@@ -407,7 +407,7 @@
 	.endm
 
 	.macro		DEPI	val,start,length,reg
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	depdi		\val,32+\start,\length,\reg
 #else
 	depwi		\val,\start,\length,\reg
@@ -418,7 +418,7 @@
 	 * fault.  We have to extract this and place it in the va,
 	 * zeroing the corresponding bits in the space register */
 	.macro		space_adjust	spc,va,tmp
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	extrd,u		\spc,63,SPACEID_SHIFT,\tmp
 	depd		%r0,63,SPACEID_SHIFT,\spc
 	depd		\tmp,31,SPACEID_SHIFT,\va
@@ -476,7 +476,7 @@
 	bb,>=,n		\pmd,_PxD_PRESENT_BIT,\fault
 	DEP		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
 	copy		\pmd,%r9
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	shld		%r9,PxD_VALUE_SHIFT,\pmd
 #else
 	shlw		%r9,PxD_VALUE_SHIFT,\pmd
@@ -607,7 +607,7 @@
 	.macro		do_alias	spc,tmp,tmp1,va,pte,prot,fault
 	cmpib,COND(<>),n 0,\spc,\fault
 	ldil		L%(TMPALIAS_MAP_START),\tmp
-#if defined(__LP64__) && (TMPALIAS_MAP_START >= 0x80000000)
+#if defined(CONFIG_64BIT) && (TMPALIAS_MAP_START >= 0x80000000)
 	/* on LP64, ldi will sign extend into the upper 32 bits,
 	 * which is behaviour we don't want */
 	depdi		0,31,32,\tmp
@@ -621,7 +621,7 @@
 	 * OK, it is in the temp alias region, check whether "from" or "to".
 	 * Check "subtle" note in pacache.S re: r23/r26.
 	 */
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	extrd,u,*=	\va,41,1,%r0
 #else
 	extrw,u,=	\va,9,1,%r0
@@ -688,7 +688,7 @@ fault_vector_20:
 	def		30
 	def		31
 
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
 
 	.export fault_vector_11
 	
@@ -761,7 +761,7 @@ __kernel_thread:
 
 	copy	%r30, %r1
 	ldo	PT_SZ_ALGN(%r30),%r30
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	/* Yo, function pointers in wide mode are little structs... -PB */
 	ldd	24(%r26), %r2
 	STREG	%r2, PT_GR27(%r1)	/* Store childs %dp */
@@ -777,7 +777,7 @@ __kernel_thread:
 	or	%r26, %r24, %r26      /* will have kernel mappings.	 */
 	ldi	1, %r25			/* stack_start, signals kernel thread */
 	stw	%r0, -52(%r30)	     	/* user_tid */
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 	BL	do_fork, %r2
@@ -806,7 +806,7 @@ ret_from_kernel_thread:
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN(%r30), %r1
 	LDREG	TASK_PT_GR25(%r1), %r26
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	LDREG	TASK_PT_GR27(%r1), %r27
 	LDREG	TASK_PT_GR22(%r1), %r22
 #endif
@@ -814,7 +814,7 @@ ret_from_kernel_thread:
 	ble	0(%sr7, %r1)
 	copy	%r31, %r2
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 	loadgp				/* Thread could have been in a module */
 #endif
@@ -835,7 +835,7 @@ __execve:
 	STREG	%r26, PT_GR26(%r16)
 	STREG	%r25, PT_GR25(%r16)
 	STREG	%r24, PT_GR24(%r16)
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 	BL	sys_execve, %r2
@@ -893,9 +893,6 @@ _switch_to_ret:
 	 * this way, then we will need to copy %sr3 in to PT_SR[3..7], and
 	 * adjust IASQ[0..1].
 	 *
-	 * Note that the following code uses a "relied upon translation".
-	 * See the parisc ACD for details. The ssm is necessary due to a
-	 * PCXT bug.
 	 */
 
 	.align 4096
@@ -916,7 +913,7 @@ syscall_exit_rfi:
 	STREG	%r19,PT_IAOQ1(%r16)
 	LDREG   PT_PSW(%r16),%r19
 	load32	USER_PSW_MASK,%r1
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	load32	USER_PSW_HI_MASK,%r20
 	depd    %r20,31,32,%r1
 #endif
@@ -960,7 +957,7 @@ intr_return:
 	/* shift left ____cacheline_aligned (aka L1_CACHE_BYTES) amount
 	** irq_stat[] is defined using ____cacheline_aligned.
 	*/
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	shld	%r1, 6, %r20
 #else
 	shlw	%r1, 5, %r20
@@ -990,24 +987,18 @@ intr_restore:
 	rest_fp         %r1
 	rest_general    %r29
 
-	/* Create a "relied upon translation" PA 2.0 Arch. F-5 */
-	ssm		0,%r0
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
+	pcxt_ssm_bug
 	tophys_r1       %r29
-	rsm             (PSW_SM_Q|PSW_SM_P|PSW_SM_D|PSW_SM_I),%r0
+	rsm             PSW_SM_QUIET,%r0	/* prepare for rfi */
 
 	/* Restore space id's and special cr's from PT_REGS
-	 * structure pointed to by r29 */
+	 * structure pointed to by r29
+	 */
 	rest_specials	%r29
 
-	/* Important: Note that rest_stack restores r29
-	 * last (we are using it)! It also restores r1 and r30. */
+	/* IMPORTANT: rest_stack restores r29 last (we are using it)!
+	 * It also restores r1 and r30.
+	 */
 	rest_stack
 
 	rfi
@@ -1023,7 +1014,7 @@ intr_restore:
 	.import do_softirq,code
 intr_do_softirq:
 	BL      do_softirq,%r2
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #else
 	nop
@@ -1041,7 +1032,7 @@ intr_do_resched:
 	CMPIB= 0,%r20,intr_restore /* backward */
 	nop
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
@@ -1074,7 +1065,7 @@ intr_do_signal:
 
 	copy	%r0, %r24			/* unsigned long in_syscall */
 	copy	%r16, %r25			/* struct pt_regs *regs */
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
 
@@ -1098,7 +1089,7 @@ intr_extint:
 	mfctl	%cr31,%r1
 	copy	%r30,%r17
 	/* FIXME! depi below has hardcoded idea of interrupt stack size (32k)*/
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	depdi	0,63,15,%r17
 #else
 	depi	0,31,15,%r17
@@ -1125,7 +1116,7 @@ intr_extint:
 
 	ldil	L%intr_return, %r2
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29	/* Reference param save area */
 #endif
 
@@ -1168,7 +1159,7 @@ intr_save:
 	mfctl           %cr20, %r16 /* isr */
 	mfctl           %cr21, %r17 /* ior */
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	/*
 	 * If the interrupted code was running with W bit off (32 bit),
 	 * clear the b bits (bits 0 & 1) in the ior.
@@ -1202,7 +1193,7 @@ skip_save_ior:
 	loadgp
 
 	copy		%r29, %r25	/* arg1 is pt_regs */
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo		-16(%r30),%r29	/* Reference param save area */
 #endif
 
@@ -1240,7 +1231,7 @@ skip_save_ior:
 	spc  = r24	/* space for which the trap occured */
 	ptp = r25	/* page directory/page table pointer */
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 
 dtlb_miss_20w:
 	space_adjust	spc,va,t0
@@ -1531,7 +1522,7 @@ nadtlb_probe_check:
 	nop
 
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 itlb_miss_20w:
 
 	/*
@@ -1598,7 +1589,7 @@ itlb_miss_20:
 
 #endif
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 
 dbit_trap_20w:
 	space_adjust	spc,va,t0
@@ -1807,7 +1798,7 @@ sys_fork_wrapper:
 
 	STREG	%r2,-RP_OFFSET(%r30)
 	ldo	FRAME_SIZE(%r30),%r30
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
@@ -1857,7 +1848,7 @@ sys_clone_wrapper:
 
 	STREG	%r2,-RP_OFFSET(%r30)
 	ldo	FRAME_SIZE(%r30),%r30
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
@@ -1879,7 +1870,7 @@ sys_vfork_wrapper:
 
 	STREG	%r2,-RP_OFFSET(%r30)
 	ldo	FRAME_SIZE(%r30),%r30
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
@@ -1907,7 +1898,7 @@ sys_vfork_wrapper:
 
 	STREG %r2,-RP_OFFSET(%r30)
 	ldo FRAME_SIZE(%r30),%r30
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 	BL \execve,%r2
@@ -1933,7 +1924,7 @@ error_\execve:
 sys_execve_wrapper:
 	execve_wrapper sys_execve
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	.export sys32_execve_wrapper
 	.import sys32_execve
 
@@ -1947,7 +1938,7 @@ sys_rt_sigreturn_wrapper:
 	ldo	TASK_REGS(%r26),%r26	/* get pt regs */
 	/* Don't save regs, we are going to restore them from sigcontext. */
 	STREG	%r2, -RP_OFFSET(%r30)
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	FRAME_SIZE(%r30), %r30
 	BL	sys_rt_sigreturn,%r2
 	ldo	-16(%r30),%r29		/* Reference param save area */
@@ -1978,7 +1969,7 @@ sys_sigaltstack_wrapper:
 	ldo	TASK_REGS(%r1),%r24	/* get pt regs */
 	LDREG	TASK_PT_GR30(%r24),%r24
 	STREG	%r2, -RP_OFFSET(%r30)
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	FRAME_SIZE(%r30), %r30
 	b,l	do_sigaltstack,%r2
 	ldo	-16(%r30),%r29		/* Reference param save area */
@@ -1992,7 +1983,7 @@ sys_sigaltstack_wrapper:
 	bv	%r0(%r2)
 	nop
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	.export sys32_sigaltstack_wrapper
 sys32_sigaltstack_wrapper:
 	/* Get the user stack pointer */
@@ -2016,7 +2007,7 @@ sys_rt_sigsuspend_wrapper:
 	reg_save %r24
 
 	STREG	%r2, -RP_OFFSET(%r30)
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	FRAME_SIZE(%r30), %r30
 	b,l	sys_rt_sigsuspend,%r2
 	ldo	-16(%r30),%r29		/* Reference param save area */
@@ -2089,7 +2080,7 @@ syscall_check_bh:
 	ldw     TI_CPU-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r26 /* cpu # */
 
 	/* shift left ____cacheline_aligned (aka L1_CACHE_BYTES) bits */
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	shld	%r26, 6, %r20
 #else
 	shlw	%r26, 5, %r20
@@ -2154,7 +2145,7 @@ syscall_restore:
 
 	depi	3,31,2,%r31			   /* ensure return to user mode. */
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	/* decide whether to reset the wide mode bit
 	 *
 	 * For a syscall, the W bit is stored in the lowest bit
@@ -2250,7 +2241,7 @@ syscall_do_softirq:
 	.import schedule,code
 syscall_do_resched:
 	BL	schedule,%r2
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #else
 	nop
@@ -2270,7 +2261,7 @@ syscall_do_signal:
 
 	ldi	1, %r24				/* unsigned long in_syscall */
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
 	BL	do_signal,%r2
Index: arch/parisc/kernel/head.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/head.S,v
retrieving revision 1.11
diff -u -p -r1.11 head.S
--- arch/parisc/kernel/head.S	1 Nov 2004 16:15:50 -0000	1.11
+++ arch/parisc/kernel/head.S	27 Apr 2005 06:27:57 -0000
@@ -36,7 +36,7 @@ boot_args:
 	.align	4
 	.import init_thread_union,data
 	.import fault_vector_20,code    /* IVA parisc 2.0 32 bit */
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
         .import fault_vector_11,code    /* IVA parisc 1.1 32 bit */
 	.import	$global$		/* forward declaration */
 #endif /*!LP64*/
@@ -76,7 +76,7 @@ $bss_loop:
 	mtctl		%r4,%cr24	/* Initialize kernel root pointer */
 	mtctl		%r4,%cr25	/* Initialize user root pointer */
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	/* Set pmd in pgd */
 	load32		PA(pmd0),%r5
 	shrd            %r5,PxD_VALUE_SHIFT,%r3	
@@ -99,7 +99,7 @@ $bss_loop:
 	stw		%r3,0(%r4)
 	ldo		(ASM_PAGE_SIZE >> PxD_VALUE_SHIFT)(%r3),%r3
 	addib,>		-1,%r1,1b
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ldo             ASM_PMD_ENTRY_SIZE(%r4),%r4
 #else
 	ldo             ASM_PGD_ENTRY_SIZE(%r4),%r4
@@ -170,7 +170,7 @@ common_stext:
 	stw		%r0,0x28(%r0)	/* MEM_RENDEZ_HI */
 #endif /*CONFIG_SMP*/
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	tophys_r1	%sp
 
 	/* Save the rfi target address */
@@ -235,7 +235,7 @@ stext_pdc_ret:
 	 * following short sequence of instructions can determine this
 	 * (without being illegal on a PA1.1 machine).
 	 */
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
 	ldi		32,%r10
 	mtctl		%r10,%cr11
 	.level 2.0
@@ -254,32 +254,14 @@ $is_pa20:
 $install_iva:
 	mtctl		%r10,%cr14
 
-#ifdef __LP64__
 	b		aligned_rfi
 	nop
 
-	.align          256
+	.align          128
 aligned_rfi:
-	ssm             0,0
-	nop             /* 1 */
-	nop             /* 2 */
-	nop             /* 3 */
-	nop             /* 4 */
-	nop             /* 5 */
-	nop             /* 6 */
-	nop             /* 7 */
-	nop             /* 8 */
-#endif
-
-#ifdef __LP64__ /* move to psw.h? */
-#define		PSW_BITS	PSW_Q+PSW_I+PSW_D+PSW_P+PSW_R
-#else
-#define		PSW_BITS	PSW_SM_Q
-#endif
-
-$rfi:	
-	/* turn off troublesome PSW bits */
-	rsm		PSW_BITS,%r0
+	pcxt_ssm_bug
+	rsm		PSW_SM_QUIET,%r0	/* off troublesome PSW bits */
+	/* Don't need NOPs, have 8 compliant insn below */
 
 	/* kernel PSW:
 	 *  - no interruptions except HPMC and TOC (which are handled by PDC)
@@ -313,7 +295,7 @@ $rfi:	
 	.import smp_init_current_idle_task,data
 	.import	smp_callin,code
 
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
 smp_callin_rtn:
         .proc
 	.callinfo
@@ -356,7 +338,7 @@ smp_slave_stext:
 	mtctl		%r4,%cr24	/* Initialize kernel root pointer */
 	mtctl		%r4,%cr25	/* Initialize user root pointer */
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	/* Setup PDCE_PROC entry */
 	copy            %arg0,%r3
 #else
@@ -373,7 +355,7 @@ smp_slave_stext:
 
 	.procend
 #endif /* CONFIG_SMP */
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
 	.data
 
 	.align	4
Index: arch/parisc/kernel/pacache.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/pacache.S,v
retrieving revision 1.17
diff -u -p -r1.17 pacache.S
--- arch/parisc/kernel/pacache.S	18 Apr 2005 05:52:31 -0000	1.17
+++ arch/parisc/kernel/pacache.S	27 Apr 2005 06:27:57 -0000
@@ -62,25 +62,10 @@ flush_tlb_all_local:
 	 * to happen in real mode with all interruptions disabled.
 	 */
 
-	/*
-	 * Once again, we do the rfi dance ... some day we need examine
-	 * all of our uses of this type of code and see what can be
-	 * consolidated.
-	 */
-
-	rsm		PSW_SM_I, %r19		/* relied upon translation! PA 2.0 Arch. F-5 */
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
+	pcxt_ssm_bug
 	
-	rsm		PSW_SM_Q, %r0		/* Turn off Q bit to load iia queue */
-	ldil		L%REAL_MODE_PSW, %r1
-	ldo		R%REAL_MODE_PSW(%r1), %r1
-	mtctl		%r1, %cr22
+	/* relied upon translation! PA 2.0 Arch. F-4 and F-5 */
+	rsm		PSW_SM_Q+PSW_SM_I, %r0	/* prep to load iia queue */
 	mtctl		%r0, %cr17		/* Clear IIASQ tail */
 	mtctl		%r0, %cr17		/* Clear IIASQ head */
 	ldil		L%PA(1f), %r1
@@ -88,6 +73,8 @@ flush_tlb_all_local:
 	mtctl		%r1, %cr18		/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18		/* IIAOQ tail */
+	load32		REAL_MODE_PSW, %r1
+	mtctl		%r1, %cr22
 	rfi
 	nop
 
@@ -178,15 +165,14 @@ fdtonemiddle:					/* Loop if LOOP = 1 */
 	ADDIB>		-1, %r22, fdtoneloop	/* Outer loop count decr */
 	add		%r21, %r20, %r20	/* increment space */
 
-fdtdone:
 
-	/* Switch back to virtual mode */
+fdtdone:
+	/*
+	 * Switch back to virtual mode
+	 */
+	pcxt_ssm_bug
 
-	rsm		PSW_SM_Q, %r0		/* clear Q bit to load iia queue */
-	ldil		L%KERNEL_PSW, %r1
-	ldo		R%KERNEL_PSW(%r1), %r1
-	or		%r1, %r19, %r1		/* Set I bit if set on entry */
-	mtctl		%r1, %cr22
+	rsm		PSW_SM_Q+PSW_SM_I, %r0	/* prep to load iia queue */
 	mtctl		%r0, %cr17		/* Clear IIASQ tail */
 	mtctl		%r0, %cr17		/* Clear IIASQ head */
 	ldil		L%(2f), %r1
@@ -194,6 +180,9 @@ fdtdone:
 	mtctl		%r1, %cr18		/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18		/* IIAOQ tail */
+	load32		KERNEL_PSW, %r1
+	or		%r1, %r19, %r1		/* Set I bit if set on entry */
+	mtctl		%r1, %cr22
 	rfi
 	nop
 
@@ -238,7 +227,7 @@ fioneloop:					/* Loop if LOOP = 1 */
 
 fisync:
 	sync
-	mtsm		%r22
+	mtsm		%r22			/* restore I-bit */
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -281,7 +270,7 @@ fdoneloop:					/* Loop if LOOP = 1 */
 fdsync:
 	syncdma
 	sync
-	mtsm		%r22
+	mtsm		%r22			/* restore I-bit */
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -1005,21 +994,12 @@ disable_sr_hashing_asm:
 	.callinfo NO_CALLS
 	.entry
 
-	/* Switch to real mode */
+	/*
+	 * Switch to real mode
+	 */
+	pcxt_ssm_bug
 
-	ssm		0, %r0			/* relied upon translation! */
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	
-	rsm		(PSW_SM_Q|PSW_SM_I), %r0 /* disable Q&I to load the iia queue */
-	ldil		L%REAL_MODE_PSW, %r1
-	ldo		R%REAL_MODE_PSW(%r1), %r1
-	mtctl		%r1, %cr22
+	rsm		PSW_SM_Q+PSW_SM_I, %r0	/* prep to load iia queue */
 	mtctl		%r0, %cr17		/* Clear IIASQ tail */
 	mtctl		%r0, %cr17		/* Clear IIASQ head */
 	ldil		L%PA(1f), %r1
@@ -1027,6 +1007,8 @@ disable_sr_hashing_asm:
 	mtctl		%r1, %cr18		/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18		/* IIAOQ tail */
+	load32		REAL_MODE_PSW, %r1
+	mtctl		%r1, %cr22
 	rfi
 	nop
 
@@ -1065,13 +1047,10 @@ srdis_pa20:
 	.word		0x145c1840		/* mtdiag %r28, %dr2 */
 
 srdis_done:
-
 	/* Switch back to virtual mode */
+	pcxt_ssm_bug
 
-	rsm		PSW_SM_Q, %r0		/* clear Q bit to load iia queue */
-	ldil		L%KERNEL_PSW, %r1
-	ldo		R%KERNEL_PSW(%r1), %r1
-	mtctl		%r1, %cr22
+	rsm		PSW_SM_Q+PSW_SM_I, %r0	/* prep to load iia queue */
 	mtctl		%r0, %cr17		/* Clear IIASQ tail */
 	mtctl		%r0, %cr17		/* Clear IIASQ head */
 	ldil 	   	L%(2f), %r1
@@ -1079,6 +1058,8 @@ srdis_done:
 	mtctl		%r1, %cr18		/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18		/* IIAOQ tail */
+	load32		KERNEL_PSW, %r1
+	mtctl		%r1, %cr22
 	rfi
 	nop
 
Index: arch/parisc/kernel/real2.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/real2.S,v
retrieving revision 1.17
diff -u -p -r1.17 real2.S
--- arch/parisc/kernel/real2.S	7 Jan 2005 21:14:33 -0000	1.17
+++ arch/parisc/kernel/real2.S	27 Apr 2005 06:27:57 -0000
@@ -147,17 +147,9 @@ restore_control_regs:
 	.text
 rfi_virt2real:
 	/* switch to real mode... */
-	ssm		0,0		/* See "relied upon translation" */
-	nop				/* PA 2.0 Arch. F-5 */
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
+	pcxt_ssm_bug
 	
-	rsm             (PSW_SM_Q|PSW_SM_I),%r0  /* disable Q & I bits to load iia queue */
+	rsm             PSW_SM_Q+PSW_SM_I,%r0  /* prep to load iia queue */
 	mtctl		%r0, %cr17	/* Clear IIASQ tail */
 	mtctl		%r0, %cr17	/* Clear IIASQ head */
 	load32		PA(rfi_v2r_1), %r1
@@ -184,17 +176,9 @@ rfi_v2r_1:
 	.text
 	.align 128
 rfi_real2virt:
-	ssm		0,0		/* See "relied upon translation" */
-	nop				/* PA 2.0 Arch. F-5 */
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	
-	rsm             PSW_SM_Q,%r0    /* disable Q bit to load iia queue */
+	pcxt_ssm_bug
+
+	rsm             PSW_SM_Q+PSW_SM_I,%r0    /* prep to load iia queue */
 	mtctl		%r0, %cr17	/* Clear IIASQ tail */
 	mtctl		%r0, %cr17	/* Clear IIASQ head */
 	load32		(rfi_r2v_1), %r1
Index: include/asm-parisc/assembly.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/assembly.h,v
retrieving revision 1.10
diff -u -p -r1.10 assembly.h
--- include/asm-parisc/assembly.h	4 Feb 2005 19:34:33 -0000	1.10
+++ include/asm-parisc/assembly.h	27 Apr 2005 06:27:59 -0000
@@ -450,5 +450,23 @@
 	REST_CR	(%cr22, PT_PSW	(\regs))
 	.endm
 
+#if defined(CONFIG_PA7000)
+	.macro	pcxt_ssm_bug
+	/* Create a "relied upon translation" PA 2.0 Arch. page F-4 and F-5
+	* The ssm is necessary due to a PCXT bug. Ie not needed for 64-bit.
+	*/
+	ssm	0,%r0
+	nop	/* 1 */
+	nop	/* 2 */
+	nop	/* 3 */
+	nop	/* 4 */
+	nop	/* 5 */
+	nop	/* 6 */
+	nop	/* 7 */
+	.endm
+#else
+#define pcxt_ssm_bug	/* Thank $DIETY. You don't have brain damaged HW. */
+#endif
+
 #endif /* __ASSEMBLY__ */
 #endif
Index: include/asm-parisc/psw.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/psw.h,v
retrieving revision 1.1
diff -u -p -r1.1 psw.h
--- include/asm-parisc/psw.h	29 Jul 2003 17:02:04 -0000	1.1
+++ include/asm-parisc/psw.h	27 Apr 2005 06:27:59 -0000
@@ -9,6 +9,16 @@
 #define	PSW_G	0x00000040	/* PA1.x only */
 #define PSW_O	0x00000080	/* PA2.0 only */
 
+/* ssm/rsm instructions number PSW_W and PSW_E differently */
+#define PSW_SM_I	PSW_I	/* Enable External Interrupts */
+#define PSW_SM_D	PSW_D
+#define PSW_SM_P	PSW_P
+#define PSW_SM_Q	PSW_Q	/* Enable Interrupt State Collection */
+#define PSW_SM_R	PSW_R	/* Enable Recover Counter Trap */
+#define PSW_SM_W	0x200	/* PA2.0 only : Enable Wide Mode */
+
+#define PSW_SM_QUIET	PSW_SM_R+PSW_SM_Q+PSW_SM_P+PSW_SM_D+PSW_SM_I
+
 #define PSW_CB	0x0000ff00
 
 #define	PSW_M	0x00010000
@@ -30,33 +40,21 @@
 #define	PSW_Z	0x40000000	/* PA1.x only */
 #define	PSW_Y	0x80000000	/* PA1.x only */
 
-#ifdef __LP64__
-#define PSW_HI_CB 0x000000ff    /* PA2.0 only */
+#ifdef CONFIG_64BIT
+#  define PSW_HI_CB 0x000000ff    /* PA2.0 only */
 #endif
 
-/* PSW bits to be used with ssm/rsm */
-#define PSW_SM_I        0x1
-#define PSW_SM_D        0x2
-#define PSW_SM_P        0x4
-#define PSW_SM_Q        0x8
-#define PSW_SM_R        0x10
-#define PSW_SM_F        0x20
-#define PSW_SM_G        0x40
-#define PSW_SM_O        0x80
-#define PSW_SM_E        0x100
-#define PSW_SM_W        0x200
-
-#ifdef __LP64__
-#  define USER_PSW      (PSW_C | PSW_Q | PSW_P | PSW_D | PSW_I)
-#  define KERNEL_PSW    (PSW_W | PSW_C | PSW_Q | PSW_P | PSW_D)
-#  define REAL_MODE_PSW (PSW_W | PSW_Q)
-#  define USER_PSW_MASK (PSW_W | PSW_T | PSW_N | PSW_X | PSW_B | PSW_V | PSW_CB)
-#  define USER_PSW_HI_MASK (PSW_HI_CB)
-#else
-#  define USER_PSW      (PSW_C | PSW_Q | PSW_P | PSW_D | PSW_I)
-#  define KERNEL_PSW    (PSW_C | PSW_Q | PSW_P | PSW_D)
-#  define REAL_MODE_PSW (PSW_Q)
-#  define USER_PSW_MASK (PSW_T | PSW_N | PSW_X | PSW_B | PSW_V | PSW_CB)
+#ifdef CONFIG_64BIT
+#  define USER_PSW_HI_MASK	PSW_HI_CB
+#  define WIDE_PSW		PSW_W
+#else 
+#  define WIDE_PSW		0
 #endif
+
+/* Used when setting up for rfi */
+#define KERNEL_PSW    (WIDE_PSW | PSW_C | PSW_Q | PSW_P | PSW_D)
+#define REAL_MODE_PSW (WIDE_PSW | PSW_Q)
+#define USER_PSW_MASK (WIDE_PSW | PSW_T | PSW_N | PSW_X | PSW_B | PSW_V | PSW_CB)
+#define USER_PSW      (PSW_C | PSW_Q | PSW_P | PSW_D | PSW_I)
 
 #endif
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jda,

I just ran into a case in glibc, where compiling dl-fptr.c
(libc/sysdeps/generic/) with gcc-3.3 works, but gcc-3.4 doesn't. In
particular I believe gcc-3.4 was incorrectly aggressive with a branch
delay slot optimization and causes a load before the register is setup.

I only seem to see this case under certain compile options. To test my
theory I went back and manually compiled dl-fptr.c with gcc-3.3, while
the rest of glibc was compiled with gcc-3.4 and the two failures go away.

The failures are two static tests that call dlopen, which eventually
uses dl_make_fptr to construct the required OPD's. 

NOTE: dl_make_ftpr is actually compiled *into* the executable at this
point, since it's static and all the loader code is included.

c.

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On Wed, Apr 27, 2005 at 01:00:20PM -0400, Carlos O'Donell wrote:
> NOTE: dl_make_ftpr is actually compiled *into* the executable at this
> point, since it's static and all the loader code is included.

On second thought, I'm sure _dl_make_fptr from the dynamically loaded
ld.so.1 is being used. So I'm not quite sure what distinguishes this
case from any other, except that it crashes on the first call to
_dl_make_fptr.

c.

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> On Wed, Apr 27, 2005 at 01:00:20PM -0400, Carlos O'Donell wrote:
> > NOTE: dl_make_ftpr is actually compiled *into* the executable at this
> > point, since it's static and all the loader code is included.
> 
> On second thought, I'm sure _dl_make_fptr from the dynamically loaded
> ld.so.1 is being used. So I'm not quite sure what distinguishes this
> case from any other, except that it crashes on the first call to
> _dl_make_fptr.

Do you have the macro fix installed?  There is a definition that's
only used in an asm that 3.4 deletes because it thinks it's not used.
I believe there is a warning.

If that's not the problem, can you send the precompiled source,
the compile command, and a note as to which code is miscompiled.

I probably won't be able to look at it until next week.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Grant,

> +++ include/asm-parisc/assembly.h	27 Apr 2005 06:27:59 -0000
> @@ -450,5 +450,23 @@
>  	REST_CR	(%cr22, PT_PSW	(\regs))
>  	.endm
>
> +#if defined(CONFIG_PA7000)
> +	.macro	pcxt_ssm_bug
> +	/* Create a "relied upon translation" PA 2.0 Arch. page F-4 and F-5
> +	* The ssm is necessary due to a PCXT bug. Ie not needed for 64-bit.
> +	*/
> +	ssm	0,%r0
> +	nop	/* 1 */
> +	nop	/* 2 */
> +	nop	/* 3 */
> +	nop	/* 4 */
> +	nop	/* 5 */
> +	nop	/* 6 */
> +	nop	/* 7 */
> +	.endm
> +#else
> +#define pcxt_ssm_bug	/* Thank $DIETY. You don't have brain damaged HW. */
> +#endif
> +
>  #endif /* __ASSEMBLY__ */
>  #endif


Make that $DEITY - or is this the weight-watchers version ;-)

-Andy

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Hello Grant,

> 
> 
> Regardless of what this is for, the following patch adds pcxt_ssm_bug
> macro to assembly.h. pcxt_ssm_bug is only enabled for CONFIG_PA7000
> which is only enabled for generic 32-bit kernel.
> 
(what's up for other PA7xxx?)

> I've added pcxt_ssm_bug use to all the locations I could
> find where PSW_SM_Q was being twiddled. Until someone can
> tell me what the bug is exactly, my assumption is it
> is needed for all cases where we "rsm PSW_SM_Q" and not
> just at init time.
> 
> I've also tried to unify all the RFI asm into a similar layout
> that could be (hopefully) replaced with a macro in a future step.
> And I've made them all use "PSW_SM_Q+PSW_SM_I" just to be consistent.
> 
Cool you just did in one shoot what I was testing step by step ;-)

> I apologize in advance since this patch also replaces __LP64__
> with CONFIG_64BIT. I thought it would only be a few but it
> turned out to interfer with the patch.
> 
Exact, that's confusing me a bit so I prepare (here below) sample geting
rid of this change ;-)

> I can split out CONFIG_64BIT changes if someone really needs that
> before reviewing it.  It's just too late tonight for me to do it.
> 

> Can the asm gurus please closely review this patch?
> 
> I don't plan on committing this before it's been tested too.
Thanks for a break to let me test some config (b180, b2k, c110, d380)

So the essence of this patch is:
--- arch/parisc/kernel/entry.S.orig	2005-04-27 11:33:57.000000000 +0200
+++ arch/parisc/kernel/entry.S	2005-04-27 11:34:45.000000000 +0200
@@ -893,9 +893,6 @@
 	 * this way, then we will need to copy %sr3 in to PT_SR[3..7], and
 	 * adjust IASQ[0..1].
 	 *
-	 * Note that the following code uses a "relied upon translation".
-	 * See the parisc ACD for details. The ssm is necessary due to a
-	 * PCXT bug.
 	 */
 
 	.align 4096
@@ -990,24 +987,18 @@
 	rest_fp         %r1
 	rest_general    %r29
 
-	/* Create a "relied upon translation" PA 2.0 Arch. F-5 */
-	ssm		0,%r0
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
+	pcxt_ssm_bug
 	tophys_r1       %r29
-	rsm             (PSW_SM_Q|PSW_SM_P|PSW_SM_D|PSW_SM_I),%r0
+	rsm             PSW_SM_QUIET,%r0	/* prepare for rfi */
 
 	/* Restore space id's and special cr's from PT_REGS
-	 * structure pointed to by r29 */
+	 * structure pointed to by r29
+	 */
 	rest_specials	%r29
 
-	/* Important: Note that rest_stack restores r29
-	 * last (we are using it)! It also restores r1 and r30. */
+	/* IMPORTANT: rest_stack restores r29 last (we are using it)!
+	 * It also restores r1 and r30.
+	 */
 	rest_stack
 
 	rfi
--- arch/parisc/kernel/head.S.orig	2005-04-27 11:33:57.000000000 +0200
+++ arch/parisc/kernel/head.S	2005-04-27 11:34:45.000000000 +0200
@@ -254,32 +254,14 @@
 $install_iva:
 	mtctl		%r10,%cr14
 
-#ifdef __LP64__
 	b		aligned_rfi
 	nop
 
-	.align          256
+	.align          128
 aligned_rfi:
-	ssm             0,0
-	nop             /* 1 */
-	nop             /* 2 */
-	nop             /* 3 */
-	nop             /* 4 */
-	nop             /* 5 */
-	nop             /* 6 */
-	nop             /* 7 */
-	nop             /* 8 */
-#endif
-
-#ifdef __LP64__ /* move to psw.h? */
-#define		PSW_BITS	PSW_Q+PSW_I+PSW_D+PSW_P+PSW_R
-#else
-#define		PSW_BITS	PSW_SM_Q
-#endif
-
-$rfi:	
-	/* turn off troublesome PSW bits */
-	rsm		PSW_BITS,%r0
+	pcxt_ssm_bug
+	rsm		PSW_SM_QUIET,%r0	/* off troublesome PSW bits */
+	/* Don't need NOPs, have 8 compliant insn below */
 
 	/* kernel PSW:
 	 *  - no interruptions except HPMC and TOC (which are handled by PDC)
--- arch/parisc/kernel/pacache.S.orig	2005-04-27 11:33:57.000000000 +0200=

+++ arch/parisc/kernel/pacache.S	2005-04-27 11:34:45.000000000 +0200
@@ -62,25 +62,10 @@
 	 * to happen in real mode with all interruptions disabled.
 	 */
 
-	/*
-	 * Once again, we do the rfi dance ... some day we need examine
-	 * all of our uses of this type of code and see what can be
-	 * consolidated.
-	 */
-
-	rsm		PSW_SM_I, %r19		/* relied upon translation! PA 2.0 Arch. F-5 */
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
+	pcxt_ssm_bug
 	
-	rsm		PSW_SM_Q, %r0		/* Turn off Q bit to load iia queue */
-	ldil		L%REAL_MODE_PSW, %r1
-	ldo		R%REAL_MODE_PSW(%r1), %r1
-	mtctl		%r1, %cr22
+	/* relied upon translation! PA 2.0 Arch. F-4 and F-5 */
+	rsm		PSW_SM_Q+PSW_SM_I, %r0	/* prep to load iia queue */
 	mtctl		%r0, %cr17		/* Clear IIASQ tail */
 	mtctl		%r0, %cr17		/* Clear IIASQ head */
 	ldil		L%PA(1f), %r1
@@ -88,6 +73,8 @@
 	mtctl		%r1, %cr18		/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18		/* IIAOQ tail */
+	load32		REAL_MODE_PSW, %r1
+	mtctl		%r1, %cr22
 	rfi
 	nop
 
@@ -178,15 +165,14 @@
 	ADDIB>		-1, %r22, fdtoneloop	/* Outer loop count decr */
 	add		%r21, %r20, %r20	/* increment space */
 
-fdtdone:
 
-	/* Switch back to virtual mode */
+fdtdone:
+	/*
+	 * Switch back to virtual mode
+	 */
+	pcxt_ssm_bug
 
-	rsm		PSW_SM_Q, %r0		/* clear Q bit to load iia queue */
-	ldil		L%KERNEL_PSW, %r1
-	ldo		R%KERNEL_PSW(%r1), %r1
-	or		%r1, %r19, %r1		/* Set I bit if set on entry */
-	mtctl		%r1, %cr22
+	rsm		PSW_SM_Q+PSW_SM_I, %r0	/* prep to load iia queue */
 	mtctl		%r0, %cr17		/* Clear IIASQ tail */
 	mtctl		%r0, %cr17		/* Clear IIASQ head */
 	ldil		L%(2f), %r1
@@ -194,6 +180,9 @@
 	mtctl		%r1, %cr18		/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18		/* IIAOQ tail */
+	load32		KERNEL_PSW, %r1
+	or		%r1, %r19, %r1		/* Set I bit if set on entry */
+	mtctl		%r1, %cr22
 	rfi
 	nop
 
@@ -238,7 +227,7 @@
 
 fisync:
 	sync
-	mtsm		%r22
+	mtsm		%r22			/* restore I-bit */
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -281,7 +270,7 @@
 fdsync:
 	syncdma
 	sync
-	mtsm		%r22
+	mtsm		%r22			/* restore I-bit */
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -1005,21 +994,12 @@
 	.callinfo NO_CALLS
 	.entry
 
-	/* Switch to real mode */
+	/*
+	 * Switch to real mode
+	 */
+	pcxt_ssm_bug
 
-	ssm		0, %r0			/* relied upon translation! */
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	
-	rsm		(PSW_SM_Q|PSW_SM_I), %r0 /* disable Q&I to load the iia queue */
-	ldil		L%REAL_MODE_PSW, %r1
-	ldo		R%REAL_MODE_PSW(%r1), %r1
-	mtctl		%r1, %cr22
+	rsm		PSW_SM_Q+PSW_SM_I, %r0	/* prep to load iia queue */
 	mtctl		%r0, %cr17		/* Clear IIASQ tail */
 	mtctl		%r0, %cr17		/* Clear IIASQ head */
 	ldil		L%PA(1f), %r1
@@ -1027,6 +1007,8 @@
 	mtctl		%r1, %cr18		/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18		/* IIAOQ tail */
+	load32		REAL_MODE_PSW, %r1
+	mtctl		%r1, %cr22
 	rfi
 	nop
 
@@ -1065,13 +1047,10 @@
 	.word		0x145c1840		/* mtdiag %r28, %dr2 */
 
 srdis_done:
-
 	/* Switch back to virtual mode */
+	pcxt_ssm_bug
 
-	rsm		PSW_SM_Q, %r0		/* clear Q bit to load iia queue */
-	ldil		L%KERNEL_PSW, %r1
-	ldo		R%KERNEL_PSW(%r1), %r1
-	mtctl		%r1, %cr22
+	rsm		PSW_SM_Q+PSW_SM_I, %r0	/* prep to load iia queue */
 	mtctl		%r0, %cr17		/* Clear IIASQ tail */
 	mtctl		%r0, %cr17		/* Clear IIASQ head */
 	ldil 	   	L%(2f), %r1
@@ -1079,6 +1058,8 @@
 	mtctl		%r1, %cr18		/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18		/* IIAOQ tail */
+	load32		KERNEL_PSW, %r1
+	mtctl		%r1, %cr22
 	rfi
 	nop
 
--- arch/parisc/kernel/real2.S.orig	2005-04-27 11:33:57.000000000 +0200
+++ arch/parisc/kernel/real2.S	2005-04-27 11:34:45.000000000 +0200
@@ -147,17 +147,9 @@
 	.text
 rfi_virt2real:
 	/* switch to real mode... */
-	ssm		0,0		/* See "relied upon translation" */
-	nop				/* PA 2.0 Arch. F-5 */
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
+	pcxt_ssm_bug
 	
-	rsm             (PSW_SM_Q|PSW_SM_I),%r0  /* disable Q & I bits to load
iia queue */
+	rsm             PSW_SM_Q+PSW_SM_I,%r0  /* prep to load iia queue */
 	mtctl		%r0, %cr17	/* Clear IIASQ tail */
 	mtctl		%r0, %cr17	/* Clear IIASQ head */
 	load32		PA(rfi_v2r_1), %r1
@@ -184,17 +176,9 @@
 	.text
 	.align 128
 rfi_real2virt:
-	ssm		0,0		/* See "relied upon translation" */
-	nop				/* PA 2.0 Arch. F-5 */
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	
-	rsm             PSW_SM_Q,%r0    /* disable Q bit to load iia queue */
+	pcxt_ssm_bug
+
+	rsm             PSW_SM_Q+PSW_SM_I,%r0    /* prep to load iia queue */
 	mtctl		%r0, %cr17	/* Clear IIASQ tail */
 	mtctl		%r0, %cr17	/* Clear IIASQ head */
 	load32		(rfi_r2v_1), %r1
--- include/asm-parisc/assembly.h.orig	2005-04-27 11:33:57.000000000 +020=
0
+++ include/asm-parisc/assembly.h	2005-04-27 11:34:45.000000000 +0200
@@ -450,5 +450,23 @@
 	REST_CR	(%cr22, PT_PSW	(\regs))
 	.endm
 
+#if defined(CONFIG_PA7000)
+	.macro	pcxt_ssm_bug
+	/* Create a "relied upon translation" PA 2.0 Arch. page F-4 and F-5
+	* The ssm is necessary due to a PCXT bug. Ie not needed for 64-bit.
+	*/
+	ssm	0,%r0
+	nop	/* 1 */
+	nop	/* 2 */
+	nop	/* 3 */
+	nop	/* 4 */
+	nop	/* 5 */
+	nop	/* 6 */
+	nop	/* 7 */
+	.endm
+#else
+#define pcxt_ssm_bug	/* Thank $DIETY. You don't have brain damaged HW. *=
/
+#endif
+
 #endif /* __ASSEMBLY__ */
 #endif
--- include/asm-parisc/psw.h.orig	2005-04-27 11:33:57.000000000 +0200
+++ include/asm-parisc/psw.h	2005-04-27 11:34:45.000000000 +0200
@@ -9,6 +9,16 @@
 #define	PSW_G	0x00000040	/* PA1.x only */
 #define PSW_O	0x00000080	/* PA2.0 only */
 
+/* ssm/rsm instructions number PSW_W and PSW_E differently */
+#define PSW_SM_I	PSW_I	/* Enable External Interrupts */
+#define PSW_SM_D	PSW_D
+#define PSW_SM_P	PSW_P
+#define PSW_SM_Q	PSW_Q	/* Enable Interrupt State Collection */
+#define PSW_SM_R	PSW_R	/* Enable Recover Counter Trap */
+#define PSW_SM_W	0x200	/* PA2.0 only : Enable Wide Mode */
+
+#define PSW_SM_QUIET	PSW_SM_R+PSW_SM_Q+PSW_SM_P+PSW_SM_D+PSW_SM_I
+
 #define PSW_CB	0x0000ff00
 
 #define	PSW_M	0x00010000
@@ -31,32 +41,20 @@
 #define	PSW_Y	0x80000000	/* PA1.x only */
 
 #ifdef __LP64__
-#define PSW_HI_CB 0x000000ff    /* PA2.0 only */
+#  define PSW_HI_CB 0x000000ff    /* PA2.0 only */
 #endif
 
-/* PSW bits to be used with ssm/rsm */
-#define PSW_SM_I        0x1
-#define PSW_SM_D        0x2
-#define PSW_SM_P        0x4
-#define PSW_SM_Q        0x8
-#define PSW_SM_R        0x10
-#define PSW_SM_F        0x20
-#define PSW_SM_G        0x40
-#define PSW_SM_O        0x80
-#define PSW_SM_E        0x100
-#define PSW_SM_W        0x200
-
 #ifdef __LP64__
-#  define USER_PSW      (PSW_C | PSW_Q | PSW_P | PSW_D | PSW_I)
-#  define KERNEL_PSW    (PSW_W | PSW_C | PSW_Q | PSW_P | PSW_D)
-#  define REAL_MODE_PSW (PSW_W | PSW_Q)
-#  define USER_PSW_MASK (PSW_W | PSW_T | PSW_N | PSW_X | PSW_B | PSW_V |=

PSW_CB)
-#  define USER_PSW_HI_MASK (PSW_HI_CB)
-#else
-#  define USER_PSW      (PSW_C | PSW_Q | PSW_P | PSW_D | PSW_I)
-#  define KERNEL_PSW    (PSW_C | PSW_Q | PSW_P | PSW_D)
-#  define REAL_MODE_PSW (PSW_Q)
-#  define USER_PSW_MASK (PSW_T | PSW_N | PSW_X | PSW_B | PSW_V | PSW_CB)=

+#  define USER_PSW_HI_MASK	PSW_HI_CB
+#  define WIDE_PSW		PSW_W
+#else 
+#  define WIDE_PSW		0
 #endif
 
+/* Used when setting up for rfi */
+#define KERNEL_PSW    (WIDE_PSW | PSW_C | PSW_Q | PSW_P | PSW_D)
+#define REAL_MODE_PSW (WIDE_PSW | PSW_Q)
+#define USER_PSW_MASK (WIDE_PSW | PSW_T | PSW_N | PSW_X | PSW_B | PSW_V
| PSW_CB)
+#define USER_PSW      (PSW_C | PSW_Q | PSW_P | PSW_D | PSW_I)
+
 #endif
=3D=3D=3D=3D<>=3D=3D=3D=3D

notes:
    o already test with success for b180, d380 (32bit smp) following:
        #define		PSW_BITS	PSW_Q+PSW_I+PSW_D+PSW_P+PSW_R

    o jda also suggesting;
        .align 128
srdis_done:

(and most probably also for 'fdtdone:' I will try to test too)

Hth and thanks again,
    Joel



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On Tue, Apr 26, 2005 at 11:20:55PM -0600, Grant Grundler wrote:
> On Tue, Apr 26, 2005 at 08:29:25PM -0600, Grant Grundler wrote:
> > The example code is just that, an example:
> > 	SSM	0,gr0	; initial RSM, SSM, or MTSM
> > ...
> > 
> > AFAICT, that sequence does nothing but burn some cycles.
> 
> *sigh*. The ssm 0,0/nop * 8/rsm sequence isn't so obvious.
> Richard Hirst added this comment to entry.S in 2001:
>         * The ssm is necessary due to a PCXT bug

Dave Anglin (offlist) pointed out it's part of the PA 2.0 Architecture:
| The first bullet in point 2., page F-4:
| 
|   The RSM or MTSM instruction which sets the PSW Q-bit (the clearing
|   RSM or MTSM) is preceded by another RSM, SSM, or MTSM instruction
|   which does not affect the Q-bit and which appears at least 8
|   instructions prior.

Kudos to Dave for being persistent. I had read this before but didn't
really understand what it said.

My copy of "PA-RISC 1.1 Architecture and Instruction Set" (3rd Edition,
Feb 1994) has change bars in front of the first two bullets on page 3-20.
This suggests it was added later - maybe after finding the "feature"
in PCX-T.

I've got research to do before moving forward with the
pcxt_ssm_bug patch.

thanks,
grant

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On Wed, Apr 27, 2005 at 11:26:10PM -0400, Mike Frysinger wrote:
> > It builds, and runs all the testsuite, except for these two tests.
> > Perhaps debian has gcc-3.4 patches that gentoo is missing?
> 
> perhaps ... which version of gcc/glibc are you playing with in debian ?
> -mike

Debian binutils and gcc 3.4, with glibc head + patches.

c.

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Xref: news.gmane.org gmane.linux.ports.parisc:22663

Grant Grundler wrote:
> Here's a new patch WITHOUT the s/__lp64__/CONFIG_64BIT/ changes.

I tested this patch on a500 and the kernel blew up when
/etc/init.d/firewall script was started.
Something in iptables triggered a WARN_ON in our smp_call_function.
Thinking this might be related to the missing "ssm/nop*8" sequence,
I removed the ifdef around the pcxt_ssm_bug so it's always used.
Still panics in basically the same way:

....
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces...done.
Starting portmap daemon: portmap.

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Thu Apr 28 07:29:51 PDT 2005

eth10: Setting full-duplex based on MII#1 link partner capability of 41e1.
Initializing random number generator...done.
Recovering nvi editor sessions... done.
Setting up X server socket directory /tmp/.X11-unix...tg3: eth11: Link is up at 1000 Mbps, full duplex.
tg3: eth11: Flow control is off for TX and off for RX.
done.
Setting up ICE socket directory /tmp/.ICE-unix...done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting firewall (iptables):Badness in smp_call_function at arch/parisc/kernel/smp.c:340
Backtrace:
 [<0000000010114d70>] dump_stack+0x18/0x28
 [<000000001011f74c>] smp_call_function+0x474/0x480
 [<00000000101ab470>] unmap_vm_area+0xa0/0x328
 [<00000000101abe4c>] remove_vm_area+0x94/0xd8
 [<00000000101abf3c>] __vunmap+0xac/0x1e0
 [<00000000101ac098>] vfree+0x28/0x80
 [<0000000000398bb0>] do_ipt_set_ctl+0x1040/0x1268 [ip_tables]
 [<00000000103c8598>] nf_sockopt+0x200/0x3c0
 [<00000000103c8774>] nf_setsockopt+0x1c/0x28
 [<00000000103e4b98>] ip_setsockopt+0x288/0xdc0
 [<0000000010408324>] raw_setsockopt+0x3c/0x90
 [<00000000103aad70>] sock_common_setsockopt+0x28/0x38
 [<00000000103a6f68>] sys_setsockopt+0x90/0xf8
 [<00000000103cb2a0>] compat_sys_setsockopt+0x538/0x548
 [<0000000010107fb4>] syscall_exit+0x0/0x14

SMP CALL FUNCTION TIMED OUT! (cpu=0), try 1
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 2
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 3
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 4
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 5
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 6
...


Looks like unmap_vm_area() has changed for every 2.6.12-rc release.
I expect the WARN_ON is invoked via flush_tlb_kernel_range().
Anyone have a clue what's up here?

thanks,
grant
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Xref: news.gmane.org gmane.linux.ports.parisc:22664

Hello Grant,

Grant Grundler wrote:
> Grant Grundler wrote:
> 
>>Here's a new patch WITHOUT the s/__lp64__/CONFIG_64BIT/ changes.
> 
> 
> I tested this patch on a500 and the kernel blew up when
> /etc/init.d/firewall script was started.
> Something in iptables triggered a WARN_ON in our smp_call_function.
> Thinking this might be related to the missing "ssm/nop*8" sequence,
> I removed the ifdef around the pcxt_ssm_bug so it's always used.
> Still panics in basically the same way:
> 
> ....
> Setting up IP spoofing protection: rp_filter.
> Configuring network interfaces...done.
> Starting portmap daemon: portmap.
> 
> Setting the System Clock using the Hardware Clock as reference...
> System Clock set. Local time: Thu Apr 28 07:29:51 PDT 2005
> 
> eth10: Setting full-duplex based on MII#1 link partner capability of 41e1.
> Initializing random number generator...done.
> Recovering nvi editor sessions... done.
> Setting up X server socket directory /tmp/.X11-unix...tg3: eth11: Link is up at 1000 Mbps, full duplex.
> tg3: eth11: Flow control is off for TX and off for RX.
> done.
> Setting up ICE socket directory /tmp/.ICE-unix...done.
> INIT: Entering runlevel: 2
> Starting system log daemon: syslogd.
> Starting kernel log daemon: klogd.
> Starting firewall (iptables):Badness in smp_call_function at arch/parisc/kernel/smp.c:340
> Backtrace:
>  [<0000000010114d70>] dump_stack+0x18/0x28
>  [<000000001011f74c>] smp_call_function+0x474/0x480
>  [<00000000101ab470>] unmap_vm_area+0xa0/0x328
>  [<00000000101abe4c>] remove_vm_area+0x94/0xd8
>  [<00000000101abf3c>] __vunmap+0xac/0x1e0
>  [<00000000101ac098>] vfree+0x28/0x80
>  [<0000000000398bb0>] do_ipt_set_ctl+0x1040/0x1268 [ip_tables]
>  [<00000000103c8598>] nf_sockopt+0x200/0x3c0
>  [<00000000103c8774>] nf_setsockopt+0x1c/0x28
>  [<00000000103e4b98>] ip_setsockopt+0x288/0xdc0
>  [<0000000010408324>] raw_setsockopt+0x3c/0x90
>  [<00000000103aad70>] sock_common_setsockopt+0x28/0x38
>  [<00000000103a6f68>] sys_setsockopt+0x90/0xf8
>  [<00000000103cb2a0>] compat_sys_setsockopt+0x538/0x548
>  [<0000000010107fb4>] syscall_exit+0x0/0x14
> 
> SMP CALL FUNCTION TIMED OUT! (cpu=0), try 1
> SMP CALL FUNCTION TIMED OUT! (cpu=0), try 2
> SMP CALL FUNCTION TIMED OUT! (cpu=0), try 3
> SMP CALL FUNCTION TIMED OUT! (cpu=0), try 4
> SMP CALL FUNCTION TIMED OUT! (cpu=0), try 5
> SMP CALL FUNCTION TIMED OUT! (cpu=0), try 6
> ...
> 
> 
> Looks like unmap_vm_area() has changed for every 2.6.12-rc release.
> I expect the WARN_ON is invoked via flush_tlb_kernel_range().
> Anyone have a clue what's up here?
> 
no sorry but I tested pa8000 64bit up on b2k (but no fw iptable :-( ) and I didn't encounter any pb:
	o my stress test during about 20h: no panic, no error, ... :-)

btw I found another way to make panicing 32bit:
	o vi a big file (e.g. a kernel objdump) and launch a dG cmd
	  (it takes obviously some minutes to copy the recovery file)
	  then try to save: no pb with 64bit on b2k but panicing quickly with 32bit on b180

I also tested on pa8000 32bit smp on the d380:
	o boot fine;
	o but hanging on the smp_call_function() WARN_ON() when simply vi my big file (need to check without patch?)

that said, iirc jda already mentioned such fw iptable pb (but not yet find the time to track down in more, sorry :-( )

hth,
	Joel

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Xref: news.gmane.org gmane.linux.ports.parisc:22665

Hello Dave, Grant,

John David Anglin wrote:
>>btw I don't more understand why the following ifdef (in the same head.S):
>>#ifdef __LP64__ /* move to psw.h? */   
>>#define         PSW_BITS        PSW_Q+PSW_I+PSW_D+PSW_P+PSW_R
>>#else
>>#define         PSW_BITS        PSW_SM_Q
>>#endif
> 
> 
> I also don't understand the difference between the 32 and 64 bit cases.
> There's probably a reason to turn off I, D, P and R in these sequences.
> For example, a flush instruction cache instruction with the D bit set
> affects the relied upon translation.  So, the question would be why the
> bits are not turned off in the 32-bit case.  It may be because the PDCs
> differ in their handling of these bits.  I'm pretty sure that the 64-bit
> define would work in the 32-bit case.  The bits are only off through to
> the rfi which then sets new bits.
> 
> The bits for the 64-bit case probably should be written using the "PSW_SM"
> defines.  There's no difference for the Q, I, D, P and R bits but the SM
> defines are for the "sm" instructions.
> 
Yes, as mentioned elsewhere (ssm/rsm ggg's patch) it works on all of my config (b180, d380 32bit smp)

> 
>>        b,n             srdis_done
>>[snip]
> 
> 
> I believe that you should align srdis_done as follows:
> 
> 	.align 128
> 
mmm is there importance in the order of:
	.align 128
	.text
rfi_virt2real:

later this is the contrary:
	.text
	.align 128
rfi_real2virt:

(from real2.S :-) )

> You would then need to add a branch and nop to get there.
> 
But I mainly come back here with the fact that 64bit kernel works fine while
its 32 bit twin panicing on same hw (b2k e.g.):
(to test ggg patch I run again my stress loop during about 20h on b2k with
the 64bit kernel without any pb ;-)

as far as I remember cffc() is only 32bit stuff so this patch would make
sense imho:
--- arch/parisc/kernel/parisc_ksyms.c.Orig      2005-04-28 14:39:07.000000000 +0200
+++ arch/parisc/kernel/parisc_ksyms.c   2005-04-28 14:18:23.000000000 +0200
@@ -160,8 +160,10 @@
  EXPORT_SYMBOL(__lshrdi3);
  EXPORT_SYMBOL(__muldi3);

+#ifndef CONFIG_64BIT
  asmlinkage void * __canonicalize_funcptr_for_compare(void *);
  EXPORT_SYMBOL(__canonicalize_funcptr_for_compare);
+#endif /* CONFIG_64BIT */

  #ifdef __LP64__
  extern void __divdi3(void);
--- arch/parisc/kernel/real2.S.Orig     2005-04-28 14:39:29.000000000 +0200
+++ arch/parisc/kernel/real2.S  2005-04-28 14:20:31.000000000 +0200
@@ -288,7 +272,7 @@
         bv,n    0(%rp)
         nop

-
+#ifndef CONFIG_64BIT
         .export __canonicalize_funcptr_for_compare
         .text
         /* http://lists.parisc-linux.org/hypermail/parisc-linux/10916.html
@@ -296,9 +280,6 @@
         **      comparing function pointers.
         */
  __canonicalize_funcptr_for_compare:
-#ifdef __LP64__
-       bve (%r2)
-#else
         bv %r0(%r2)
-#endif
         copy %r26,%r28
+#endif /* CONFIG_64BIT */
====<>====
(compile fine)

mmm, could it be the diff I was looking for between 32 and 64bit ?

For the moment, it is the most important diff that could explain me those
so different behaviour?

well iirc this last hunk is not more than:

typedef int (*fptr_t) (void);
unsigned int
__canonicalize_funcptr_for_compare (fptr)
      fptr_t fptr;
{
     return (unsigned int) fptr;
}

this form could help me to add some printk() to check the fptr containt?
(or may be a WARN_ON() to collect stack tree?)

But that would just give me addresses; how would I be able to check if a fcnt_ptr comparison is erronious?

Another thought: could it be some kind of border effect due to an additonal branch in 32bit (not present in 64bit)?

# grep canoni vmlinux-2.6.12-rc3-pa1-050425.dmp
10111b8c <__canonicalize_funcptr_for_compare>:
101265e8: e8 55 0b 3d  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
101265f8: e8 55 0b 1d  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
101327f8: e8 4f 07 1d  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
10132804: e8 4f 07 05  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
10132e80: e8 4f 1a 09  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
10132e8c: e8 4f 19 f1  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
10133308: e8 4f 10 f9  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
10133314: e8 4f 10 e1  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
1013335c: e8 4f 10 51  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
10133368: e8 4f 10 39  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
101340d4: e8 4e 15 65  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
101340e0: e8 4e 15 4d  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
10134100: e8 4e 15 0d  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
1013410c: e8 4e 14 f5  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
10134268: e8 4e 12 3d  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
10134274: e8 4e 12 25  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
1013487c: e8 4e 06 15  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
10134888: e8 4e 05 fd  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
1013583c: e8 4e 06 91  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
10135848: e8 4e 06 79  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
1013d7f8: e8 4a 07 19  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
1013d804: e8 4a 07 01  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
1013dab4: e8 4a 01 a1  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
1013dac0: e8 4a 01 89  b,l 10111b8c <__canonicalize_funcptr_for_compare>,rp
103bd7b0 <__ksymtab___canonicalize_funcptr_for_compare>:
103c1f24 <__kstrtab___canonicalize_funcptr_for_compare>:

yet another thought: is there any mean to inline this, to check this other hypothesis?

Thanks again,
     Joel


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> mmm is there importance in the order of:
> 	.align 128
> 	.text
> rfi_virt2real:

Yes, put the .align after the .text.  You want to align the following
text.

> But I mainly come back here with the fact that 64bit kernel works fine while
> its 32 bit twin panicing on same hw (b2k e.g.):
> (to test ggg patch I run again my stress loop during about 20h on b2k with
> the 64bit kernel without any pb ;-)
> 
> as far as I remember cffc() is only 32bit stuff so this patch would make

Yes.  You don't need it in 64-bit code.  Regarding cffc, GCC 4.0
has a fix as to when canonicalization is done.  In 4.0 and later,
canonicalization is only done when both sides of are function
pointers.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Apr 28, 2005 at 08:58:34AM -0600, Grant Grundler wrote:
> Grant Grundler wrote:
> > Here's a new patch WITHOUT the s/__lp64__/CONFIG_64BIT/ changes.
> 
> I tested this patch on a500 and the kernel blew up when
> /etc/init.d/firewall script was started.
> Something in iptables triggered a WARN_ON in our smp_call_function.
> Thinking this might be related to the missing "ssm/nop*8" sequence,
> I removed the ifdef around the pcxt_ssm_bug so it's always used.
> Still panics in basically the same way:

I've restored the #ifdef CONFIG_64BIT around pcxt_ssm_bug
so my 64-bit kernels don't use it *and* disabled
/etc/init.d/firewall so iptables doesn't get invoked.
The system boots to a login prompt but when I ssh
to the box, I get the following WARNON with several
different stack traces:

Badness in smp_call_function at arch/parisc/kernel/smp.c:340
Backtrace:
 [<0000000010114cf0>] dump_stack+0x18/0x28
 [<000000001011f6cc>] smp_call_function+0x474/0x480
 [<00000000101130f8>] flush_tlb_all+0x108/0x238
 [<00000000101a6e88>] exit_mmap+0x238/0x2a0
 [<000000001014928c>] mmput+0xdc/0x200
 [<00000000101ce82c>] flush_old_exec+0x8c4/0xe38
 [<000000001012188c>] load_elf_binary+0x56c/0x1970
 [<00000000101cf304>] search_binary_handler+0x174/0x580
 [<00000000102000a8>] compat_do_execve+0x1d0/0x3e0
 [<0000000010124700>] sys32_execve+0x70/0xf8
 [<0000000010107e04>] sys32_execve_wrapper+0x1c/0x30


Badness in smp_call_function at arch/parisc/kernel/smp.c:340
Backtrace:
 [<0000000010114cf0>] dump_stack+0x18/0x28
 [<000000001011f6cc>] smp_call_function+0x474/0x480
 [<00000000101130f8>] flush_tlb_all+0x108/0x238
 [<000000001019e0f0>] unmap_vmas+0x528/0xb78
 [<00000000101a6d5c>] exit_mmap+0x10c/0x2a0
 [<000000001014928c>] mmput+0xdc/0x200
 [<00000000101ce82c>] flush_old_exec+0x8c4/0xe38
 [<000000001012188c>] load_elf_binary+0x56c/0x1970
 [<00000000101cf304>] search_binary_handler+0x174/0x580
 [<00000000102000a8>] compat_do_execve+0x1d0/0x3e0
 [<0000000010124700>] sys32_execve+0x70/0xf8
 [<0000000010107e04>] sys32_execve_wrapper+0x1c/0x30

Besides the basic issue, this also implies flush_tlb_all() is
called twice in the same code path. That might be ok if 
flush_tlb_all() took parameters, but it does not.

Any clue what the basic issue is here?

grant
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> On Thu, Apr 28, 2005 at 08:58:34AM -0600, Grant Grundler wrote:
> > Grant Grundler wrote:
> > > Here's a new patch WITHOUT the s/__lp64__/CONFIG_64BIT/ changes.
> > 
> > I tested this patch on a500 and the kernel blew up when
> > /etc/init.d/firewall script was started.
> > Something in iptables triggered a WARN_ON in our smp_call_function.
> > Thinking this might be related to the missing "ssm/nop*8" sequence,
> > I removed the ifdef around the pcxt_ssm_bug so it's always used.
> > Still panics in basically the same way:
> 
> I've restored the #ifdef CONFIG_64BIT around pcxt_ssm_bug
> so my 64-bit kernels don't use it *and* disabled
> /etc/init.d/firewall so iptables doesn't get invoked.
> The system boots to a login prompt but when I ssh
> to the box, I get the following WARNON with several
> different stack traces:
> 
> Badness in smp_call_function at arch/parisc/kernel/smp.c:340
> Backtrace:
>  [<0000000010114cf0>] dump_stack+0x18/0x28
>  [<000000001011f6cc>] smp_call_function+0x474/0x480
>  [<00000000101130f8>] flush_tlb_all+0x108/0x238

> Besides the basic issue, this also implies flush_tlb_all() is
> called twice in the same code path. That might be ok if 
> flush_tlb_all() took parameters, but it does not.

Twice?

> Any clue what the basic issue is here?

flush_tlb_all doesn't call anything.  I'm guessing but I think this
implies that smp_call_function is getting called because a TLB miss
fault has occured.  It appears from the backtrace that the fault
has occurred in the part of flush_tlb_all with the REAL_MODE_PSW
flags set (W and Q).  Interrupts are off, so this causes the warning.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Apr 28, 2005 at 03:42:26PM -0400, John David Anglin wrote:
> > Besides the basic issue, this also implies flush_tlb_all() is
> > called twice in the same code path. That might be ok if 
> > flush_tlb_all() took parameters, but it does not.
> 
> Twice?

Yes. Once from
	exit_mmap() -> flush_tlb_mm() -> flush_tlb_all()
and again
	unmap_vmas() -> unmap_page_range() -> tlb_end_vma() ->
		 flush_tlb_range() -> flush_tlb_all()

But flush_tlb_range() only calls flush_tlb_all() IFF:
...
	if (npages >= 512)  /* XXX arbitrary, should be tuned */
		flush_tlb_all();
	else {
...

That may be why I'm not seeing it more often.

jejb, any insight here?

> > Any clue what the basic issue is here?
> 
> flush_tlb_all doesn't call anything.

Eh?! I'm looking at arch/parisc/mm/init.c and it is:
...
        }
        spin_unlock(&sid_lock);
        on_each_cpu((void (*)(void *))flush_tlb_all_local, NULL, 1, 1);
        if (do_recycle) {
...

>   I'm guessing but I think this
> implies that smp_call_function is getting called because a TLB miss
> fault has occured.  It appears from the backtrace that the fault
> has occurred in the part of flush_tlb_all with the REAL_MODE_PSW
> flags set (W and Q).  Interrupts are off, so this causes the warning.

Wouldn't we see more gunk on the stack trace?

If I'm reading the PA 2.0 Arch correctly, PDTLB/PDTLBE insn can NOT cause
a TLB Miss. But I don't really know.

It also doesn't make sense for a TLB miss if we are in REAL_MODE.

thanks,
grant
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On Wednesday 27 April 2005 01:15 pm, Carlos O'Donell wrote:
> On Wed, Apr 27, 2005 at 01:00:20PM -0400, Carlos O'Donell wrote:
> > NOTE: dl_make_ftpr is actually compiled *into* the executable at this
> > point, since it's static and all the loader code is included.
>
> On second thought, I'm sure _dl_make_fptr from the dynamically loaded
> ld.so.1 is being used. So I'm not quite sure what distinguishes this
> case from any other, except that it crashes on the first call to
> _dl_make_fptr.

which basically looks like when you try to run the new ld.so it segfaults ?  
we've been testing just about every version of gcc-3.4 thus far on parisc and 
it has yet to build us a glibc w/out segfaults ;)
-mike
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> > flush_tlb_all doesn't call anything.
> 
> Eh?! I'm looking at arch/parisc/mm/init.c and it is:

Oops, I was looking at flush_tlb_all_local.  It's still not obvious
how we got to the warning.

Dave
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On Thu, 2005-04-28 at 14:20 -0600, Grant Grundler wrote:
> That may be why I'm not seeing it more often.
> 
> jejb, any insight here?

Yes, but you're not going to like it.  For this to show up twice for the
same process, we must have done a full tlb flush so often that we've
completely cycled around the spaces.

This, in turn, looks to be because we have a total screw up in our tlb
flushing implementation.  What's supposed to happen is that the 

tlb_gather_mmu()
...
tlb_finish_mmu()

is supposed simply to say "I promise to flush the tlb when I'm done, so
don't actually flush anywhere within, just add the dirty tlbs to the
list".

Unfortunately, our implementation of tlb_end_vma() meaning either flush
this vma or add it to the tlb list seems to flush every time, which is
why we do this so often.

James


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On Wed, Apr 27, 2005 at 07:35:53PM -0400, Mike Frysinger wrote:
> On Wednesday 27 April 2005 01:15 pm, Carlos O'Donell wrote:
> > On Wed, Apr 27, 2005 at 01:00:20PM -0400, Carlos O'Donell wrote:
> > > NOTE: dl_make_ftpr is actually compiled *into* the executable at this
> > > point, since it's static and all the loader code is included.
> >
> > On second thought, I'm sure _dl_make_fptr from the dynamically loaded
> > ld.so.1 is being used. So I'm not quite sure what distinguishes this
> > case from any other, except that it crashes on the first call to
> > _dl_make_fptr.
> 
> which basically looks like when you try to run the new ld.so it segfaults ?  
> we've been testing just about every version of gcc-3.4 thus far on parisc and 
> it has yet to build us a glibc w/out segfaults ;)

It builds, and runs all the testsuite, except for these two tests.
Perhaps debian has gcc-3.4 patches that gentoo is missing?

c.

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On Wednesday 27 April 2005 10:23 pm, Carlos O'Donell wrote:
> On Wed, Apr 27, 2005 at 07:35:53PM -0400, Mike Frysinger wrote:
> > On Wednesday 27 April 2005 01:15 pm, Carlos O'Donell wrote:
> > > On Wed, Apr 27, 2005 at 01:00:20PM -0400, Carlos O'Donell wrote:
> > > > NOTE: dl_make_ftpr is actually compiled *into* the executable at this
> > > > point, since it's static and all the loader code is included.
> > >
> > > On second thought, I'm sure _dl_make_fptr from the dynamically loaded
> > > ld.so.1 is being used. So I'm not quite sure what distinguishes this
> > > case from any other, except that it crashes on the first call to
> > > _dl_make_fptr.
> >
> > which basically looks like when you try to run the new ld.so it segfaults
> > ? we've been testing just about every version of gcc-3.4 thus far on
> > parisc and it has yet to build us a glibc w/out segfaults ;)
>
> It builds, and runs all the testsuite, except for these two tests.
> Perhaps debian has gcc-3.4 patches that gentoo is missing?

perhaps ... which version of gcc/glibc are you playing with in debian ?
-mike
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Carlos O'Donell writes:
> On Wed, Apr 27, 2005 at 11:26:10PM -0400, Mike Frysinger wrote:
> > > It builds, and runs all the testsuite, except for these two tests.
> > > Perhaps debian has gcc-3.4 patches that gentoo is missing?
> > 
> > perhaps ... which version of gcc/glibc are you playing with in debian ?
> > -mike
> 
> Debian binutils and gcc 3.4, with glibc head + patches.

$ gcc-3.4 --version
gcc-3.4 (GCC) 3.4.4 20050314 (prerelease) (Debian 3.4.3-12)
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Subject: [parisc-linux] IDE cdrom crash when trying to mount it on C3600/B2K
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Hello guys,


I have experienced a really bad bug when trying to create a installation
cd for gentoo. When I try to mount a ide cd I only have this :


hope root # mount /dev/hda /mnt/cdrom/
Kernel panic - not syncing: Kernel Fault


There is no stack trace or anything else.

It only happends when trying to read on the cd. Reading the cdrom
parameters works fine. This is of course with DMA disabled.
Trying to read a single block with dd also crash the box.

I'm not the only one who experienced this. I have reports from several
people with several kernels from 2.6.10-pa11 to the latest one. I don't
know about the older kernels.

I don't have the skills to fix this. I would be really happy if someone
could have a look at this since ide cdrom support is kinda required for
install cdrom :)

If you need more info, I'd be glad to provide it.


TIA

-- 
Guy Martin
Gentoo Linux - HPPA port Lead / IPv6 team


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Subject: Re: [parisc-linux] IDE cdrom crash when trying to mount it on
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On 4/29/05, Guy Martin <gmsoft@gentoo.org> wrote:
> Hello guys,
>=20
> I have experienced a really bad bug when trying to create a installation
> cd for gentoo. When I try to mount a ide cd I only have this :
>=20
> hope root # mount /dev/hda /mnt/cdrom/
> Kernel panic - not syncing: Kernel Fault

This is a known problem, search the p-l m-l.
It only happens with the ide-cd driver, so try to use
ide-scsi instead ... "works for me" (tm).

Greetings, Max
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> -- Original Message --
> To: soete.joel@tiscali.be (Joel Soete)
> Date: Thu, 28 Apr 2005 13:52:11 -0400 (EDT)
> From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
> Cc: grundler@parisc-linux.org, parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] head.S: a small typo
> 
> 
> > mmm is there importance in the order of:
> > 	.align 128
> > 	.text
> > rfi_virt2real:
> 
> Yes, put the .align after the .text.  You want to align the following
> text.
> 
ah my memory is not so bad ;-) (thanks)

> > But I mainly come back here with the fact that 64bit kernel works fin=
e
> while
> > its 32 bit twin panicing on same hw (b2k e.g.):
> > (to test ggg patch I run again my stress loop during about 20h on b2k=

with
> > the 64bit kernel without any pb ;-)
> > 
> > as far as I remember cffc() is only 32bit stuff so this patch would m=
ake
> 
> Yes.  You don't need it in 64-bit code.  Regarding cffc, GCC 4.0
> has a fix as to when canonicalization is done.  In 4.0 and later,
> canonicalization is only done when both sides of are function
> pointers.
> 
Cool, I will so either try to learn more on the status of deb pkg (gcc_sn=
apshot)
or use lfs procedure (just need more patience) ;-)

I will advise obviously :)

Thanks for all,
    Joel
 


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Trying to get "tvflash" running on pa8800. tvflash is a userspace
firmware flash tool for mellanox infiniband boards.
Works fine on x86, x86-64, ia64, ppc, and sparc64.
"tvflash -i" is supposed to go off and identify all
installed mellanox boards and which firmware rev they
currently have.

The panic is in pfn_to_nid():
        r = pfnnid_map[i];
        BUG_ON(r == 0xff);	<---- panic

Any clue what's broken?


[ sorry - feels like I'm reporting alot more problems than I'm
fixing lately *sigh* ]

thanks,
grant

grundler@ion:/usr/src/openib_gen2/src/userspace/tvflash$ sudo src/tvflash -i
open_hca(0)
kernel BUG at include/asm/mmzone.h:85!
Backtrace:
 [<0000000010113060>] dump_stack+0x18/0x28
 [<000000001018125c>] remap_pfn_range+0x37c/0x4b8
 [<00000000102413e4>] mmap_mem+0x2c/0x40
 [<0000000010187120>] do_mmap_pgoff+0x478/0x850
 [<0000000010114f84>] do_mmap2+0xa4/0x108
 [<0000000010115030>] sys_mmap+0x28/0x38
 [<0000000010107f80>] syscall_exit+0x0/0x14

Kernel panic - not syncing: BUG!
 <0>Rebooting in 5 seconds..
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From: James Bottomley <James.Bottomley@SteelEye.com>
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Subject: Re: [parisc-linux] BUG 2.6.12-rc3-pa1 PCI mmap panic
Date: Sun, 01 May 2005 14:24:20 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:22680

On Sun, 2005-05-01 at 01:49 -0600, Grant Grundler wrote:
> Trying to get "tvflash" running on pa8800. tvflash is a userspace
> firmware flash tool for mellanox infiniband boards.
> Works fine on x86, x86-64, ia64, ppc, and sparc64.
> "tvflash -i" is supposed to go off and identify all
> installed mellanox boards and which firmware rev they
> currently have.
> 
> The panic is in pfn_to_nid():
>         r = pfnnid_map[i];
>         BUG_ON(r == 0xff);	<---- panic
> 
> Any clue what's broken?

pfnnid_map is a map per 1gb (currently what PFNNID_SHIFT defines) of our
memory range showing which discontig chunk this maps to.  0xff means the
range maps nowhere.

Without better debugging, it's hard to say, but I guess that this flash
tool is actually trying to mmap a region of memory on the PCI card and
it's tripping over this section of code.  My second order guess would be
that we don't update the pfnnid_map when we actually declare a card I/O
range, so the kernel thinks it can map the region OK but we erroneously
trip this bug.

I'm with Joel on this one: Can you reproduce the problem without
CONFIG_DISCONTIGMEM?

James


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Xref: news.gmane.org gmane.linux.ports.parisc:22681

Hi Dave, Grant,

John David Anglin wrote:
>>mmm is there importance in the order of:
>>	.align 128
>>	.text
>>rfi_virt2real:
> 
> 
> Yes, put the .align after the .text.  You want to align the following
> text.
> 
Here is the patch so:
--- arch/parisc/kernel/real2.S.Orig     2005-01-08 16:58:49.000000000 +0100
+++ arch/parisc/kernel/real2.S  2005-05-01 15:45:32.000000000 +0200
@@ -143,8 +143,8 @@
  /* rfi_virt2real() and rfi_real2virt() could perhaps be adapted for
   * more general-purpose use by the several places which need RFIs
   */
-       .align 128
         .text
+       .align 128
  rfi_virt2real:
         /* switch to real mode... */
         ssm             0,0             /* See "relied upon translation" */
====<>====

Thanks to ci for me,
	Joel
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On Sun, May 01, 2005 at 03:57:53PM +0000, Joel Soete wrote:
> it's CONFIG_DISCONTIGMEM

What's that mean?
I was hoping someone could explain what the BUG_ON()
that tripped would mean.

> so first of all do you need DISCONTIGMEM?

Erm, define "need". I try to run the same kernels on several
a500s - several of which have > 4GB RAM.

pa8800/ZX1 has 4GB RAM installed but only 1GB is in 32-bit address space.
The rest is remapped by HW to > 32-bit.

> eventhougt what hapened if you don't use this option?

No.

> (it would also boot just miss some ram)

"some" on pa8800 is not ok.
1GB for a 4-way, 1GHz box just isn't right.

thanks,
grant
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Xref: news.gmane.org gmane.linux.ports.parisc:22683

Hi Randolph and *,

Here is my new proposal to attempt to fix the show_stack() bug in the early boot stage:
--- include/asm-parisc/unwind.h.Orig    2005-05-01 15:55:25.000000000 +0200
+++ include/asm-parisc/unwind.h 2005-05-01 15:23:56.000000000 +0200
@@ -61,6 +61,14 @@
         unsigned long prev_sp, prev_ip;
  };

+struct unwind_frame_regs {
+       unsigned long sp, ip, rp, r31;
+};
+
+#define UFI_REGS_BUF_MAX       128     /* about 4k for LP64 */
+extern struct unwind_frame_regs ufi_regs_buf[UFI_REGS_BUF_MAX];
+extern unsigned int ufi_regs_buf_i;
+
  struct unwind_table *
  unwind_table_add(const char *name, unsigned long base_addr,
                  unsigned long gp, void *start, void *end);
@@ -68,9 +76,11 @@
  unwind_table_remove(struct unwind_table *table);

  void unwind_frame_init(struct unwind_frame_info *info, struct task_struct *t,
-                      struct pt_regs *regs);
+                       struct unwind_frame_regs *regs);
  void unwind_frame_init_from_blocked_task(struct unwind_frame_info *info, struct task_struct *t);
+#if 0   /* FIXME: not used */
  void unwind_frame_init_running(struct unwind_frame_info *info, struct pt_regs *regs);
+#endif
  int unwind_once(struct unwind_frame_info *info);
  int unwind_to_user(struct unwind_frame_info *info);

--- arch/parisc/kernel/unwind.c.Orig    2005-05-01 15:50:50.000000000 +0200
+++ arch/parisc/kernel/unwind.c 2005-05-01 15:40:39.000000000 +0200
@@ -326,14 +326,18 @@
  }

  void unwind_frame_init(struct unwind_frame_info *info, struct task_struct *t,
-                      struct pt_regs *regs)
+                       struct unwind_frame_regs *regs)
  {
-       memset(info, 0, sizeof(struct unwind_frame_info));
+       if (unlikely(!info)) {
+               printk(KERN_ERR "%s: info == NULL\n", __FUNCTION__);
+               return;
+       }
+       memset(info, 0, sizeof(*info));
         info->t = t;
-       info->sp = regs->gr[30];
-       info->ip = regs->iaoq[0];
-       info->rp = regs->gr[2];
-       info->r31 = regs->gr[31];
+       info->sp = regs->sp;
+       info->ip = regs->ip;
+       info->rp = regs->rp;
+       info->r31 = regs->r31;

         dbg("(%d) Start unwind from sp=%08lx ip=%08lx\n",
             t ? (int)t->pid : -1, info->sp, info->ip);
@@ -342,22 +346,21 @@
  void unwind_frame_init_from_blocked_task(struct unwind_frame_info *info, struct task_struct *t)
  {
         struct pt_regs *r = &t->thread.regs;
-       struct pt_regs *r2;
+       struct unwind_frame_regs r2;

-       r2 = (struct pt_regs *)kmalloc(sizeof(struct pt_regs), GFP_KERNEL);
-       if (!r2)
-               return;
-       *r2 = *r;
-       r2->gr[30] = r->ksp;
-       r2->iaoq[0] = r->kpc;
-       unwind_frame_init(info, t, r2);
-       kfree(r2);
+       r2.sp  = r->ksp;
+       r2.ip  = r->kpc;
+       r2.rp  = r->gr[2];
+       r2.r31 = r->gr[31];
+       unwind_frame_init(info, t, &r2);
  }

+#if 0  /* FIXME: not used */
  void unwind_frame_init_running(struct unwind_frame_info *info, struct pt_regs *regs)
  {
         unwind_frame_init(info, current, regs);
  }
+#endif

  int unwind_once(struct unwind_frame_info *next_frame)
  {
--- arch/parisc/kernel/traps.c.Orig     2005-05-01 15:50:32.000000000 +0200
+++ arch/parisc/kernel/traps.c  2005-05-01 15:38:08.000000000 +0200
@@ -158,25 +158,35 @@
         printk("\n");
  }

+struct unwind_frame_regs ufi_regs_buf[UFI_REGS_BUF_MAX];
+unsigned int ufi_regs_buf_i = 0;
+
  void show_stack(struct task_struct *task, unsigned long *s)
  {
         struct unwind_frame_info info;
+       struct unwind_frame_regs *r;

         if (!task) {
+               if (ufi_regs_buf_i >= UFI_REGS_BUF_MAX) {
+                       printk(KERN_ERR "Can't %s().\n", __FUNCTION__);
+                       return;
+               }
+
                 unsigned long sp;
-               struct pt_regs *r;

  HERE:
                 asm volatile ("copy %%r30, %0" : "=r"(sp));
-               r = (struct pt_regs *)kmalloc(sizeof(struct pt_regs), GFP_KERNEL);
-               if (!r)
-                       return;
-               memset(r, 0, sizeof(struct pt_regs));
-               r->iaoq[0] = (unsigned long)&&HERE;
-               r->gr[2] = (unsigned long)__builtin_return_address(0);
-               r->gr[30] = sp;
+               r = &ufi_regs_buf[ufi_regs_buf_i++];
+               memset(r, 0, sizeof(*r));
+               r->ip = (unsigned long)&&HERE;
+               r->rp = (unsigned long)__builtin_return_address(0);
+               r->sp = sp;
                 unwind_frame_init(&info, current, r);
-               kfree(r);
+               ufi_regs_buf_i--;
+               if (ufi_regs_buf_i < 0) {
+                       printk(KERN_ERR "Wouldn't have reach here???\n");
+                       return;
+               }
         } else {
                 unwind_frame_init_from_blocked_task(&info, task);
         }
@@ -423,7 +433,10 @@
         {
                 /* show_stack(NULL, (unsigned long *)regs->gr[30]); */
                 struct unwind_frame_info info;
-               unwind_frame_init(&info, current, regs);
+               struct unwind_frame_regs r2;
+               r2.sp = regs->gr[30]; r2.ip = regs->iaoq[0];
+               r2.rp = regs->gr[2]; r2.r31 = regs->gr[31];
+               unwind_frame_init(&info, current, &r2);
                 do_show_stack(&info);
         }

====<>====

compile and boot fine on c110.

Thanks for additional advise,
	Joel
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On Sun, May 01, 2005 at 07:31:37PM -0500, James Bottomley wrote:
> > *nod*. Where should we be telling the VM about MMIO ranges?
> > We clearly need to be advertising them.
> 
> Is this a 64 bit mmio region?  Our pfn_is_io heuristics are a bit simple
> (i.e. top F only set).

It's a 64-bit BAR but not an address > 32-bits.
ion:~# lspci -vs 81:
0000:81:00.0 InfiniBand: Mellanox Technology MT23108 InfiniHost (rev a1)
        Subsystem: Hewlett-Packard Company: Unknown device 12ce
        Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 24
        Memory at c0800000 (64-bit, non-prefetchable) [size=1M]
        Memory at c0000000 (64-bit, prefetchable) [size=8M]
        Capabilities: [40] #11 [001f]
        Capabilities: [50] Vital Product Data
        Capabilities: [60] Message Signalled Interrupts: 64bit+ Queue=0/5 Enable-
        Capabilities: [70] PCI-X non-bridge device.

The 3rd BAR isn't exposed by the current version of firmware.
If it were exposed, then we would see a 128MB or 256MB MMIO space.


> Yes, wrong kernel.  That bug physically cannot occur with
> CONFIG_DISCONTIGMEM=n.  What I'm interested in there is if the tool
> actually works.

Sorry, it was the old kernel. I expect make -j2 failure scrolled
off the screen after one of the threads segfaults.
ie no new kernel got built.

Now the system just resets. No tombstone of any kind. :^(

ion:/usr/src/openib_gen2/src/userspace/tvflash# cat /proc/meminfo 
MemTotal:      1024548 kB
MemFree:        988272 kB
Buffers:          2016 kB
Cached:          15172 kB
...
ion:/usr/src/openib_gen2/src/userspace/tvflash# src/tvflash -i
open_hca(0)



Firmware Version  44.24

Duplex Console IO Dependent Code (IODC) revision 1


PC and RP from PIM dump + System.map:

CPU0 IOAQ 0x1010aadc $$remoI+350
CPU0 GR02 0x1010d110 __udivdi3+198

CPU1 IOAQ 0x101011b0 flush_data_cache_local+8
CPU1 GR02 0x10113b04 update_mmu_cache+94


Looks like CPU1 died right away trying to flush an uncacheable region.
No surprise that didn't work too well.

And no clue what's up with CPU0.

thanks,
grant
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On Sun, May 01, 2005 at 02:24:20PM -0500, James Bottomley wrote:
> pfnnid_map is a map per 1gb (currently what PFNNID_SHIFT defines) of our
> memory range showing which discontig chunk this maps to.  0xff means the
> range maps nowhere.

ok

> Without better debugging, it's hard to say, but I guess that this flash
> tool is actually trying to mmap a region of memory on the PCI card and
> it's tripping over this section of code.

Yes. A copy of the openib_gen2 tree is parked on gsyprf11:/usr/src/ as well.

>   My second order guess would be
> that we don't update the pfnnid_map when we actually declare a card I/O
> range, so the kernel thinks it can map the region OK but we erroneously
> trip this bug.

*nod*. Where should we be telling the VM about MMIO ranges?
We clearly need to be advertising them.

> I'm with Joel on this one:
> Can you reproduce the problem without CONFIG_DISCONTIGMEM?

Yes. I rebuilt the kernel with CONFIG_DISCONTIGMEM=n.
I'm having doubts though that I rebooted the right kernel.
I believe so but post again later if not.

ion:/usr/src/openib_gen2/src/userspace/tvflash# src/tvflash -i
open_hca(0)
kernel BUG at include/asm/mmzone.h:85!
Backtrace:
 [<0000000010113060>] dump_stack+0x18/0x28
 [<00000000101813fc>] remap_pfn_range+0x37c/0x4b8
 [<0000000010241934>] mmap_mem+0x2c/0x40
 [<0000000010187288>] do_mmap_pgoff+0x478/0x858
 [<0000000010114f84>] do_mmap2+0xa4/0x108
 [<0000000010115030>] sys_mmap+0x28/0x38
 [<0000000010107f80>] syscall_exit+0x0/0x14

Kernel panic - not syncing: BUG!
 <0>Rebooting in 5 seconds..


thanks,
grant
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Subject: Re: [parisc-linux] BUG 2.6.12-rc3-pa1 PCI mmap panic
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On Sun, 2005-05-01 at 18:08 -0600, Grant Grundler wrote:
> On Sun, May 01, 2005 at 02:24:20PM -0500, James Bottomley wrote:
> >   My second order guess would be
> > that we don't update the pfnnid_map when we actually declare a card I/O
> > range, so the kernel thinks it can map the region OK but we erroneously
> > trip this bug.
> 
> *nod*. Where should we be telling the VM about MMIO ranges?
> We clearly need to be advertising them.

Is this a 64 bit mmio region?  Our pfn_is_io heuristics are a bit simple
(i.e. top F only set).

> > I'm with Joel on this one:
> > Can you reproduce the problem without CONFIG_DISCONTIGMEM?
> 
> Yes. I rebuilt the kernel with CONFIG_DISCONTIGMEM=n.
> I'm having doubts though that I rebooted the right kernel.
> I believe so but post again later if not.
> 
> ion:/usr/src/openib_gen2/src/userspace/tvflash# src/tvflash -i
> open_hca(0)
> kernel BUG at include/asm/mmzone.h:85!
> Backtrace:
>  [<0000000010113060>] dump_stack+0x18/0x28
>  [<00000000101813fc>] remap_pfn_range+0x37c/0x4b8
>  [<0000000010241934>] mmap_mem+0x2c/0x40
>  [<0000000010187288>] do_mmap_pgoff+0x478/0x858
>  [<0000000010114f84>] do_mmap2+0xa4/0x108
>  [<0000000010115030>] sys_mmap+0x28/0x38
>  [<0000000010107f80>] syscall_exit+0x0/0x14

Yes, wrong kernel.  That bug physically cannot occur with
CONFIG_DISCONTIGMEM=n.  What I'm interested in there is if the tool
actually works.

James


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On Sun, 2005-05-01 at 22:12 -0600, Grant Grundler wrote:
>         Memory at c0800000 (64-bit, non-prefetchable) [size=1M]
>         Memory at c0000000 (64-bit, prefetchable) [size=8M]

Exactly ... that's the 3rd gigabyte; I assume there's no physical memory
there, so the pfnnid_map is 0xff (except the bit where the io region
check works).

However, there's a total screw up here: 0xc0000000 is outside of our
premapped I/O region (0xf0000000-0xffffffff) so one of our assumptions
about pa is broken; either the mercury doesn't obey the I/O window rules
and we need to update the OS, or the card has the wrong address.

> Now the system just resets. No tombstone of any kind. :^(
[...]
> CPU0 IOAQ 0x1010aadc $$remoI+350
> CPU0 GR02 0x1010d110 __udivdi3+198
> 
> CPU1 IOAQ 0x101011b0 flush_data_cache_local+8
> CPU1 GR02 0x10113b04 update_mmu_cache+94
> 
> 
> Looks like CPU1 died right away trying to flush an uncacheable region.
> No surprise that didn't work too well.
> 
> And no clue what's up with CPU0.

CPU0 was probably executing a different thread when it was halted by the
HPMC.

flushing an uncacheable area doesn't cause a HPMC, but flushing a non-
existent (and non-responding) area would ...

James


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On Mon, May 02, 2005 at 09:51:50AM -0500, James Bottomley wrote:
> On Sun, 2005-05-01 at 22:12 -0600, Grant Grundler wrote:
> >         Memory at c0800000 (64-bit, non-prefetchable) [size=1M]
> >         Memory at c0000000 (64-bit, prefetchable) [size=8M]
> 
> Exactly ... that's the 3rd gigabyte; I assume there's no physical memory
> there, so the pfnnid_map is 0xff (except the bit where the io region
> check works).

ok

> However, there's a total screw up here: 0xc0000000 is outside of our
> premapped I/O region (0xf0000000-0xffffffff) so one of our assumptions
> about pa is broken; either the mercury doesn't obey the I/O window rules
> and we need to update the OS,

We need to update the OS.

> or the card has the wrong address.

The card has the right address for the Rope it's under.
THis is a ZX1 chipset. Similar to N-class, MMIO space is 2-4GB address.

> > CPU1 IOAQ 0x101011b0 flush_data_cache_local+8
> > CPU1 GR02 0x10113b04 update_mmu_cache+94
> > 
> > 
> > Looks like CPU1 died right away trying to flush an uncacheable region.
> > No surprise that didn't work too well.
> > 
> > And no clue what's up with CPU0.
> 
> CPU0 was probably executing a different thread when it was halted by the
> HPMC.

Maybe. The fact that it died early in the routine suggests otherwise.

> flushing an uncacheable area doesn't cause a HPMC,

This is the part I'm not sure about. John Marvin?

> but flushing a non-existent (and non-responding) area would ...

Yes, probably.

thanks,
grant
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> and the console showing me:
>        -------------------------------
>               \   ^__^
>                \  (xx)\_______
>                   (__)\       )\/\
>                    U  ||----w |
>                       ||     ||
> expect (pid 11251): Protection id trap (code 27)
> 
>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001101111111100001111 Not tainted
> r00-03  0000000000000000 000000001046a030 00000000101b21ec 000000001fdafb00
> r04-07  00000000105c4ce0 0000000000000000 000000000002e4f8 0000000000000001
> r08-11  0000000000000000 000000000002e500 00000000000001fe 000000001fdafb00
> r12-15  fffffffffffffff2 0000000000000000 00000000000aa000 00000000000f2f08
> r16-19  0000000000000000 00000000000f2a88 0000000000000001 000000001f3ec000
> r20-23  0000000000000001 0000000000000000 000000000002e4fe 000000001fdafb1a
> r24-27  0000000000000000 0000000000000001 000000001b3dac80 00000000105c4ce0
> r28-31  0000000000000000 000000001f3ec3c0 000000001f3ec270 0000000000000000
> sr0-3   0000000000bc8800 0000000000000000 0000000000000000 0000000000bc8800
> sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101b22e4 00000000101b22e8
>   IIR: 0ed5d240    ISR: 0000000000bc8800  IOR: 000000000002e4fe
>   CPU:        0   CR30: 000000001f3ec000 CR31: 0000000010584000
>   ORIG_R28: 000000001010e400
>   IAOQ[0]: sys_poll+0x274/0x298
>   IAOQ[1]: sys_poll+0x278/0x298
>   RP(r2): sys_poll+0x17c/0x298
> 
>   # disasm 0ed5d240
>     0:   0e d5 d2 40     sth r21,0(sr3,r22)

Where did this address come from?  IAOQ[0] = 0x101b22e4.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hello Dave,

John David Anglin wrote:
[snip]
>>Besides the recent gcc-snapshot build failure, I'm having problems
>>building the packages at all at the moment, there's no difference
>>using between sarge and unstable.
> 
I am trying now the new debian dpkg sources gcc-4.0

> 
> I've had this problem from time to time, particularly on server
> machines.  My c3k is solid and this doesn't happen.  For some reason,
> the libjava build is most prone to the segfaults in sh/bash and
> sometimes make.  Grant's recent builds on gsyprf11 seem to have
> changed the nature of the faults.  Now, the kernel panics instead
> of a segfault in sh.  Grant would know more as to what's causing
> these crashes.
>
I am using a sister system a b2k with a 2.6.12-rc2-pa1 64bit (more stable then the 32bit)
and an unstable debian install.

> 
>>- if the build succeeds, every test case in the testsuite fails, due
>>  to expect(?) problems. lamont told me that's reproducible on another
>>  A500, seeing some messages on the serial console, but I can't see
>>  these messages. I'm currently running the A500 kernels from the
>>  parisc archives. palinux-a500-defconfig-2.6.{8.1-pa11,11-pa2,12-rc1-pa1}
>>  all show the same behaviour.
>
but I unfortunately encounter also an expect pb (hanging):
# ps -ef
[snip]
root     11231 11228  9 17:08 pts/1    00:13:36 expect -- /usr/share/dejagnu/runtest.exp --tool gcc
root     11251 11231  0 17:08 pts/1    00:00:01 [expect] <defunct>
root     13466  1414  0 18:53 ?        00:00:00 sshd: jso [priv]
root     13478 13466  0 18:53 ?        00:00:00 sshd: jso [priv]
jso      13584 13466  0 18:53 ?        00:00:00 sshd: jso@pts/5
jso      13587 13584  0 18:53 pts/5    00:00:00 -bash
root     13695 13587  0 18:53 pts/5    00:00:00 -su
root     14056 11231  0 18:54 pts/1    00:00:00 [20020220-1.exe] <defunct>
root     14057 11231  0 18:54 pts/1    00:00:00 [cat] <defunct>
root     14226 10073  0 19:34 pts/1    00:00:00 sleep 30
root     14227 13695  0 19:34 pts/5    00:00:00 ps -ef

# pstree 11228
expect --- [20020220-1.exe]
          + [cat]
          + [expect]

and the console showing me:
       -------------------------------
              \   ^__^
               \  (xx)\_______
                  (__)\       )\/\
                   U  ||----w |
                      ||     ||
expect (pid 11251): Protection id trap (code 27)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001111 Not tainted
r00-03  0000000000000000 000000001046a030 00000000101b21ec 000000001fdafb00
r04-07  00000000105c4ce0 0000000000000000 000000000002e4f8 0000000000000001
r08-11  0000000000000000 000000000002e500 00000000000001fe 000000001fdafb00
r12-15  fffffffffffffff2 0000000000000000 00000000000aa000 00000000000f2f08
r16-19  0000000000000000 00000000000f2a88 0000000000000001 000000001f3ec000
r20-23  0000000000000001 0000000000000000 000000000002e4fe 000000001fdafb1a
r24-27  0000000000000000 0000000000000001 000000001b3dac80 00000000105c4ce0
r28-31  0000000000000000 000000001f3ec3c0 000000001f3ec270 0000000000000000
sr0-3   0000000000bc8800 0000000000000000 0000000000000000 0000000000bc8800
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101b22e4 00000000101b22e8
  IIR: 0ed5d240    ISR: 0000000000bc8800  IOR: 000000000002e4fe
  CPU:        0   CR30: 000000001f3ec000 CR31: 0000000010584000
  ORIG_R28: 000000001010e400
  IAOQ[0]: sys_poll+0x274/0x298
  IAOQ[1]: sys_poll+0x278/0x298
  RP(r2): sys_poll+0x17c/0x298

  # disasm 0ed5d240
    0:   0e d5 d2 40     sth r21,0(sr3,r22)

as r22 ended by E, the privilege of this address would be 2 (the last 2 bits?)

> 
> I think that there are issues with expect, tcl and dejagnu.
> 
> 1) Dejagnu asks expect to trap SEGFAULTS.  This is undefined and results
>    in the fault insn being executed repeatively.  It's a simple one line
>    fix to remove this:
> 
> --- runtest.exp.orig    2004-08-25 16:10:38.000000000 -0400
> +++ runtest.exp 2004-08-25 16:11:13.000000000 -0400
> @@ -1503,8 +1503,7 @@
>  if ![exp_debug] {
>       foreach sig "{SIGTERM {terminated}} \
> 		    {SIGINT  {interrupted by user}} \
> -             {SIGQUIT {interrupted by user}} \
> -             {SIGSEGV {segmentation violation}}" {
> +             {SIGQUIT {interrupted by user}}" {
> 	 set signal [lindex $sig 0]
> 	 set str [lindex $sig 1]
> 	 trap "send_error \"got a \[trap -name\] signal, $str \\n\"; log_and_exit;" $signal
> 
>    I've probably munged the diff doing a cut and paste.
> 
Even thought I applied this patch

> 2) There is some kind of timing issue with expect/tcl when a given
>    test ends.  This causes expect to hang.  When this happens, you
>    will see a defunct expect task.  It is a child of the expect task
>    that is hung.
> 
Exactely the one which try to access an address without having enough privilege (if i well understand?)

>    Tcl 8.3 works better than 8.4.  I know they have changed some of
>    the code in this area but I don't know why this happens.  I've also
>    had this happen on x86 but pa seems much more prone to this problem.
> 
>    Tcl 8.3 also works better for tests that generate a lot of output.
>    It is less likely to truncate the output resulting in a test failure.
>    I think this has to do with the handling of pipes at exit.
> 
Well I just rediscover this kind comments, so still have to test this and the rest

> 3) A warning appears compiling expect in a couple of places regarding
>    the second argument of waitpid.  It's always int.  However, expect
>    thinks the type of this argument is WAIT_STATUS_TYPE.  This gets
>    used when NO_UNION_WAIT isn't defined.  This problem can be worked
>    around be adding "-ansi -D_SVID_SOURCE -D_POSIX_SOURCE" to CFLAGS.
>    I had hoped that fixing this would resolve the expect hangs but it
>    doesn't seem to help.  However, I do like a build without warnings.
>    To get this with the above CFLAGS, a number of missing include
>    directives need to be added.
> 
>    I use the following setup:
> 
>    dave@hiauly6:~/gnu/expect-5.43/objdir$ runtest --version
>    WARNING: Couldn't find the global config file.
>    Expect version is       5.43.0
>    Tcl version is          8.3
>    Framework version is    1.4.4
> 
>    I haven't seen any significant difference in behavior between
>    5.42.1 and 5.43.0.  The former is the debian patched source.
> 
> 4) There is a exit timing issue in tcl 8.4.  I tried a patch from the
>    tcl list that claimed to fix this but it didn't seem to fix either
>    the hangs or the truncation problem.
> 
> 
Thanks a lot,
	Joel

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> > sr0-3   0000000000bc8800 0000000000000000 0000000000000000 0000000000bc8800
> > sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000
> > 
> > IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101b22e4 00000000101b22e8
> >   IIR: 0ed5d240    ISR: 0000000000bc8800  IOR: 000000000002e4fe
> >   CPU:        0   CR30: 000000001f3ec000 CR31: 0000000010584000
> >   ORIG_R28: 000000001010e400
> >   IAOQ[0]: sys_poll+0x274/0x298
> >   IAOQ[1]: sys_poll+0x278/0x298
> >   RP(r2): sys_poll+0x17c/0x298
> > 
> >   # disasm 0ed5d240
> >     0:   0e d5 d2 40     sth r21,0(sr3,r22)
> 
> Where did this address come from?  IAOQ[0] = 0x101b22e4.

Sorry, this is the faulting instruction.  However, this isn't much help.
This isn't GCC code (GCC doesn't generate code using sr3).  It's part of
a syscall asm.  The value in sr3 seems wierd.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] [gcc] should we teach gcc some new tricks?
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> > >   IAOQ[0]: sys_poll+0x274/0x298
> > >   IAOQ[1]: sys_poll+0x278/0x298
> > >   RP(r2): sys_poll+0x17c/0x298
> > > 
> > >   # disasm 0ed5d240
> > >     0:   0e d5 d2 40     sth r21,0(sr3,r22)
> > 
> > Where did this address come from?  IAOQ[0] = 0x101b22e4.
> 
> Sorry, this is the faulting instruction.  However, this isn't much help.
> This isn't GCC code (GCC doesn't generate code using sr3).  It's part of
> a syscall asm.  The value in sr3 seems wierd.

The problem code is in fs/select.c:

                for (j=0; j < walk->len; j++, ufds++) {
			if(__put_user(fds[j].revents, &ufds->revents))
				goto out_fds;
		}

The sth is in the __put_user code.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: yet another ssm/rsm/rfi question [Was: [parisc-linux] head.S: a small
	typo]
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Hello all,

yet another strange notice between head.S and real2.S:

the following:
/* rfi_virt2real() and rfi_real2virt() could perhaps be adapted for
 * more general-purpose use by the several places which need RFIs
 */
        .text
        .align 128
rfi_virt2real:
        /* switch to real mode... */
        pcxt_ssm_bug

        rsm             PSW_SM_Q+PSW_SM_I,%r0  /* prep to load iia queue
*/
        mtctl           %r0, %cr17      /* Clear IIASQ tail */
        mtctl           %r0, %cr17      /* Clear IIASQ head */
        load32          PA(rfi_v2r_1), %r1
        mtctl           %r1, %cr18      /* IIAOQ head */
        ldo             4(%r1), %r1
        mtctl           %r1, %cr18      /* IIAOQ tail */
        load32          REAL_MODE_PSW, %r1
        mtctl           %r1, %cr22
        rfi

        nop
        nop
        nop
        nop
        nop
        nop
        nop
        nop
rfi_v2r_1:
        tophys_r1 %r2
        bv      0(%r2)
        nop

looks very like to me to:
        .text
        .align  128

        .export flush_tlb_all_local,code

flush_tlb_all_local:
        .proc
        .callinfo NO_CALLS
        .entry

        /*
         * The pitlbe and pdtlbe instructions should only be used to
         * flush the entire tlb. Also, there needs to be no intervening
         * tlb operations, e.g. tlb misses, so the operation needs
         * to happen in real mode with all interruptions disabled.
         */

        pcxt_ssm_bug

        /* relied upon translation! PA 2.0 Arch. F-4 and F-5 */
        rsm             PSW_SM_Q+PSW_SM_I, %r0  /* prep to load iia queue=

*/
        mtctl           %r0, %cr17              /* Clear IIASQ tail */
        mtctl           %r0, %cr17              /* Clear IIASQ head */
        ldil            L%PA(1f), %r1
        ldo             R%PA(1f)(%r1), %r1
        mtctl           %r1, %cr18              /* IIAOQ head */
        ldo             4(%r1), %r1
        mtctl           %r1, %cr18              /* IIAOQ tail */
        load32          REAL_MODE_PSW, %r1
        mtctl           %r1, %cr22
        rfi
        nop

1:      ldil            L%PA(cache_info), %r1
        ldo             R%PA(cache_info)(%r1), %r1

        /* Flush Instruction Tlb */
[snip]

(well we could easly re-label 1 by e.g. flush_tlb_all_local_1 and use "lo=
ad32
PA(flush_tlb_all_local_1), %r1")
but I am surprised to not find the 8 nops between rfi and label.

Any recommendation about this?

Thanks again,
    Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:22694

On Tue, May 03, 2005 at 04:56:10PM +0000, Joel Soete wrote:
...
>         pcxt_ssm_bug
...
> (well we could easly re-label 1 by e.g. flush_tlb_all_local_1 and use "load32
> PA(flush_tlb_all_local_1), %r1")

Sure. We could. Why?

> but I am surprised to not find the 8 nops between rfi and label.

AFAICT, the NOPs are pointless. The RFI better not return or we
have more serious problems (e.g. HW failure).

I will unify (i.e. define macros) uses of ssm/rsm/rfi once this current
patch is in CVS and people are happy with it.

There are currently 8 uses of RFI:

grundler <501>fgrep pcxt_ssm_bug *S
entry.S:        pcxt_ssm_bug
head.S: pcxt_ssm_bug
pacache.S:      pcxt_ssm_bug
pacache.S:      pcxt_ssm_bug
pacache.S:      pcxt_ssm_bug
pacache.S:      pcxt_ssm_bug
real2.S:        pcxt_ssm_bug
real2.S:        pcxt_ssm_bug

All but one are easily replaced with a macro that takes 2 parameters.
But one step at a time...

grant
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Xref: news.gmane.org gmane.linux.ports.parisc:22695

Joel,

> Here is my new proposal to attempt to fix the show_stack() bug in the early 
> boot stage:

Can you explain again what is the problem you are seeing? Is it because
of stack overflow? calls to kmalloc()?

> +struct unwind_frame_regs {
> +       unsigned long sp, ip, rp, r31;
> +};

this is better, although i am still not very clear why we can't just use
pt_regs.

> +#define UFI_REGS_BUF_MAX       128     /* about 4k for LP64 */
> +extern struct unwind_frame_regs ufi_regs_buf[UFI_REGS_BUF_MAX];
> +extern unsigned int ufi_regs_buf_i;

this seems to be used to handle recursive calls to show_stack(), is that
right? why do we want to call show_stack() recursively?

i'm not sure why you want to put this array as a global variable. what's
wrong with putting it on the stack of show_stack()?

> +#if 0   /* FIXME: not used */
>  void unwind_frame_init_running(struct unwind_frame_info *info, struct 
>  pt_regs *regs);
> +#endif

please fix this. this function is useful e.g. for kdb.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Xref: news.gmane.org gmane.linux.ports.parisc:22696

Hello Randolph,

>
> > Here is my new proposal to attempt to fix the show_stack() bug in the=

early
>
> > boot stage:
>
> Can you explain again what is the problem you are seeing?
Well all came from the fact that my b2k was runing fine a 2.6 64bit (quie=
t
more stable then 32bit twin kernel) and a day I read I mail (iirc from tb=
one)
speaking about DEBUG_SLAB.
I would so try it to attempt to reproduce its pb.

Effectively, under heavy stress condition this same 64bit kernel +  DEBUG=
_SLAB
made panicing the system.
What was anoying: there was no Backtrace?

The analyse of piminfo learned me that the system did a hpmc so why no Ba=
cktrace?

Another case was when I attempted to study the irq (enable/disable) statu=
s
(if I well undestand the PSW I bit) along the boot of our parisc-linux (s=
till
on going :-) ).
I also remember of the willy's patch: "Remove spurious BUG_ON()."
<http://cvs.parisc-linux.org/linux-2.6/kernel/posix-cpu-timers.c?r1=3D1.2=
&r2=3D1.3>

I thought so that it could be interesting to replace the BUG_ON() by a WA=
RN_ON()
to start.

Even thought that was just a warning the system panicing also whithout an=
y
Backtrace?

Then I have a look and found a possible way which could explain this pb:
BUG_ON (for parisc) as well as WARN_ON() -> dump_stack() -> show_stack()
-> kmalloc() (as *task =3D=3D NULL)
OTH (for some run path) kmalloc() -> __kmalloc() -> kmem_find_genral_cach=
ep()->
BUG_ON() (when DEBUG_SLAB is selected)

> Is it because
> of stack overflow? calls to kmalloc()?
>
so imho there are at least a possibility of calls of kmalloc() in loop?

> > +struct unwind_frame_regs {
> > +       unsigned long sp, ip, rp, r31;
> > +};
>
> this is better, although i am still not very clear why we can't just us=
e
> pt_regs.
>
Just because pt_regs struct would use many place (around 0.7k) for just u=
sefull
32bytes (64bit kernel).
(mmm may be oldfashion but at school I learned basis of asm on a 8088 tes=
ting
board with a lot of 4k of ram ;-) ...)

> > +#define UFI_REGS_BUF_MAX       128     /* about 4k for LP64 */
> > +extern struct unwind_frame_regs ufi_regs_buf[UFI_REGS_BUF_MAX];
> > +extern unsigned int ufi_regs_buf_i;
>
> this seems to be used to handle recursive calls to show_stack(), is tha=
t
> right? why do we want to call show_stack() recursively?
>
I thought more to insure some kind of re-intrance (may be not the right w=
ay?).

> i'm not sure why you want to put this array as a global variable. what'=
s
> wrong with putting it on the stack of show_stack()?
>
Willy seems to dis-like this solution:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2005-April/026315.h=
tml>
(imho make sense?)

> > +#if 0   /* FIXME: not used */
> >  void unwind_frame_init_running(struct unwind_frame_info *info, struc=
t
>
> >  pt_regs *regs);
> > +#endif
>
> please fix this. this function is useful e.g. for kdb.
>
Oops I missed sorry (I will check that as soon as we agreed a common solu=
tion).

Thanks,
    Joel

PS: I still need to check the DEBUG_SLAB case; but already help to get mo=
re
backtrace in the second example (eventhought it dramaticaly slow down the=

boot).
It also also help me about that 'ext3' pb encountered with 32bit kernel o=
n
b180 and b2k by showing me now the same Backtrace :-) (previously on b180=
,
it was showing apparently a truncated backtrace, making thought to a diff=
erent
pb)  


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> > but I am surprised to not find the 8 nops between rfi and label.
> 
> AFAICT, the NOPs are pointless. The RFI better not return or we
> have more serious problems (e.g. HW failure).

Same here.  On the otherhand, the might have been added to avoid
problems with the instruction pipeline when executing an rfi.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > > The problem code is in fs/select.c:
> > > 
> > >                 for (j=3D0; j < walk->len; j++, ufds++) {
> > > 			if(__put_user(fds[j].revents, &ufds->revents))
> > > 				goto out_fds;
> > > 		}
> > > 
> > > The sth is in the __put_user code.
> > > 
> > Ah I see, just need to recover your lastest patch as basic work (I tr=
usted
> > that I laready tested it here at the office, but no trace: may be on
the
> > system n4k down for now :-( )
> 
> No, I don't believe it will fix the problem as it doesn't affect
> the transfer of shorts.
> 
> It's not clear why the insn is causing a protection fault.  A bad
> pointer could of been passed to the kernel, or the kernel has done
> something bad.
> 
Thanks.

Btw, I reach to install gcc-4.0-pre9 experimental pre-build dpkg and comp=
ile
kernel ;-)
unfortunately:
# grep canon vmlinux-gcc4.dmp
10111a68 <__canonicalize_funcptr_for_compare>:
101271d4:       eb f5 b1 19     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
101271e4:       eb f5 b0 f9     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10127230:       eb f5 b0 61     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10127240:       eb f5 b0 41     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10128c7c:       eb f4 bb c9     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10128c88:       eb f4 bb b1     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1013380c:       eb ef a4 a9     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10133818:       eb ef a4 91     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
101347e8:       eb ee a4 f5     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
101347f4:       eb ee a4 dd     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
101349bc:       eb ee a1 4d     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
101349c8:       eb ee a1 35     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1013580c:       eb ee a4 a9     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10135818:       eb ee a4 91     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10135afc:       eb ed be cd     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10135b08:       eb ed be b5     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10135c20:       eb ed bc 85     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10135c2c:       eb ed bc 6d     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10136ea4:       eb ed b7 79     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10136eb0:       eb ed b7 61     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
101374bc:       eb ed ab 49     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
101374c8:       eb ed ab 31     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
101374e8:       eb ed aa f1     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
101374f4:       eb ed aa d9     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1013e5d0:       eb e9 a9 25     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1013e5dc:       eb e9 a9 0d     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1013e7ac:       eb e9 a5 6d     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1013e7b8:       eb e9 a5 55     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10169554:       eb d4 aa 19     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10169564:       eb d4 a9 f9     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
101a2584:       eb b7 a9 bd     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
101a2590:       eb b7 a9 a5     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1020ad2c:       eb 83 ba 69     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1020ad3c:       eb 83 ba 49     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
102217cc:       eb 78 a5 29     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
102217dc:       eb 78 a5 09     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1022183c:       eb 78 a4 49     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1022184c:       eb 78 a4 29     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10230c28:       eb 70 bc 71     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10230c34:       eb 70 bc 59     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1023199c:       eb 70 a1 89     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
102319a8:       eb 70 a1 71     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
102319d0:       eb 70 a1 21     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
102319dc:       eb 70 a1 09     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10232858:       eb 6f a4 15     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10232868:       eb 6f a3 f5     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10234e10:       eb 6e b8 a1     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10234e1c:       eb 6e b8 89     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10235354:       eb 6e ae 19     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10235364:       eb 6e ad f9     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10236958:       eb 6d a2 15     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10236968:       eb 6d a1 f5     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10255900:       eb 5e a2 c1     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10255910:       eb 5e a2 a1     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10255960:       eb 5e a2 01     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10255970:       eb 5e a1 e1     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10267860:       eb 55 a4 01     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10267870:       eb 55 a3 e1     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1028e64c:       eb 41 a8 2d     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1028e65c:       eb 41 a8 0d     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10294760:       eb 3e a6 05     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10294770:       eb 3e a5 e5     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1029718c:       eb 3d b1 a9     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
1029719c:       eb 3d b1 89     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
102c53c4:       eb 26 ad 39     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
102c53d0:       eb 26 ad 21     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
102ed42c:       eb 12 ac 69     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
102ed438:       eb 12 ac 51     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
102f3ab8:       eb 0e bf 55     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
102f3ac8:       eb 0e bf 35     b,l 10111a68 <__canonicalize_funcptr_for_=
compare>,%r2
10380978 <__ksymtab___canonicalize_funcptr_for_compare>:
1038542c <__kstrtab___canonicalize_funcptr_for_compare>:

this one doesn't seems to help me to get rid of those call __canonicalize=
_funcptr_for_compare().

Do you think that gcc-4.0 final release will help more?

Thanks,
    Joel


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Subject: Re: [parisc-linux] [gcc] should we teach gcc some new tricks?
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> 102f3ac8:       eb 0e bf 35     b,l 10111a68 <__canonicalize_funcptr_for_compare>,%r2
> 10380978 <__ksymtab___canonicalize_funcptr_for_compare>:
> 1038542c <__kstrtab___canonicalize_funcptr_for_compare>:
> 
> this one doesn't seems to help me to get rid of those call __canonicalize_funcptr_for_compare().

The only way to get rid of the calls is to not compare function pointers ;)

> Do you think that gcc-4.0 final release will help more?

No.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hello Dave,

Come back to expect pb:
	o I just grab dpkg src and while I rebuild it localy I noticed that:
./configure [snip] --enable-threads
[snip]
checking for building with threads... configure: WARNING: Expect is not fully thread-enabled.  Although significant work has been 
done towards that goal, it is not complete.  Continue compiling at your own risk.
no (default)
[snip]
	? do you also used this '--enable-threads' options

	o I also grab the latest 5.43.0 release and btw lfs recommended the patch: expect-5.43.0-spawn-1.patch
	  <http://lfs-matrix.net/lfs/view/development/chapter05/expect.html>
	? do you already test it?

Thanks,
	Joel

John David Anglin wrote:
>>>>  IAOQ[0]: sys_poll+0x274/0x298
>>>>  IAOQ[1]: sys_poll+0x278/0x298
>>>>  RP(r2): sys_poll+0x17c/0x298
>>>>
>>>>  # disasm 0ed5d240
>>>>    0:   0e d5 d2 40     sth r21,0(sr3,r22)
>>>
>>>Where did this address come from?  IAOQ[0] = 0x101b22e4.
>>
>>Sorry, this is the faulting instruction.  However, this isn't much help.
>>This isn't GCC code (GCC doesn't generate code using sr3).  It's part of
>>a syscall asm.  The value in sr3 seems wierd.
> 
> 
> The problem code is in fs/select.c:
> 
>                 for (j=0; j < walk->len; j++, ufds++) {
> 			if(__put_user(fds[j].revents, &ufds->revents))
> 				goto out_fds;
> 		}
> 
> The sth is in the __put_user code.
> 
> Dave
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> Come back to expect pb:
> 	o I just grab dpkg src and while I rebuild it localy I noticed that:
> ./configure [snip] --enable-threads
> [snip]
> checking for building with threads... configure: WARNING: Expect is not fully thread-enabled.  Although significant work has been 
> done towards that goal, it is not complete.  Continue compiling at your own risk.

I don't configure it using --enable-threads.  I've been using something
like this:

# ../configure  --prefix=/home/dave/opt/gnu --host=hppa-linux --build=hppa-linux --with-tcl=/usr/lib/tcl8.3 --with-tk=/usr/lib/tk8.3 --with-tk=/usr/lib/tk8.3 --with-tclinclude=/usr/include/tcl8.3/tcl-private --with-tkinclude=/usr/include/tcl8.3/tk-private

I used the following CFLAGS:

CFLAGS = -O1 -g -ansi -D_SVID_SOURCE -D_POSIX_SOURCE

-ansi and the defines are because of the wait flag issue.

> 	o I also grab the latest 5.43.0 release and btw lfs recommended the patch: expect-5.43.0-spawn-1.patch
> 	  <http://lfs-matrix.net/lfs/view/development/chapter05/expect.html>
> 	? do you already test it?

I'm running 5.43.0 on one system.  I haven't tried the patch.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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John David Anglin wrote:
>>Come back to expect pb:
>>	o I just grab dpkg src and while I rebuild it localy I noticed that:
>>./configure [snip] --enable-threads
>>[snip]
>>checking for building with threads... configure: WARNING: Expect is not fully thread-enabled.  Although significant work has been 
>>done towards that goal, it is not complete.  Continue compiling at your own risk.
> 
> 
> I don't configure it using --enable-threads.  I've been using something
> like this:
> 
> # ../configure  --prefix=/home/dave/opt/gnu --host=hppa-linux --build=hppa-linux --with-tcl=/usr/lib/tcl8.3 --with-tk=/usr/lib/tk8.3 --with-tk=/usr/lib/tk8.3 --with-tclinclude=/usr/include/tcl8.3/tcl-private --with-tkinclude=/usr/include/tcl8.3/tk-private
> 
> I used the following CFLAGS:
> 
> CFLAGS = -O1 -g -ansi -D_SVID_SOURCE -D_POSIX_SOURCE
> 
> -ansi and the defines are because of the wait flag issue.
> 
Ok just rebuild my own dpkg with this interesting options ...

> 
>>	o I also grab the latest 5.43.0 release and btw lfs recommended the patch: expect-5.43.0-spawn-1.patch
>>	  <http://lfs-matrix.net/lfs/view/development/chapter05/expect.html>
>>	? do you already test it?
> 
> 
> I'm running 5.43.0 on one system.  I haven't tried the patch.
> 
and also with this patch

run autoexpect as simple test seems ok ;-)

I will try to rebuild gcc-4.0 dpkg now...

Thanks for advise,
	Joel
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 Herbert Poetzl <herbert@13thfloor.at>
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On Fri, May 06, 2005 at 02:22:53AM +0200, Herbert Poetzl wrote:
> 
> Greetings!
> 
> now that we are preparing for a 2.0 linux-vserver
> release, and the debian folks actually have support
> for hppa/64 it sounds like a good idea to me to ask
> once again for a reserved syscall number on parisc

Herbert,
Certainly. Sorry for being the laggards here...

Willy,
This look ok to you?

Index: include/asm-parisc/unistd.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/unistd.h,v
retrieving revision 1.16
diff -u -p -r1.16 unistd.h
--- include/asm-parisc/unistd.h 23 Mar 2005 17:13:38 -0000      1.16
+++ include/asm-parisc/unistd.h 6 May 2005 05:16:21 -0000
@@ -755,8 +755,9 @@
 #define __NR_mbind		(__NR_Linux + 260)
 #define __NR_get_mempolicy	(__NR_Linux + 261)
 #define __NR_set_mempolicy	(__NR_Linux + 262)
+#define __NR_vserver		(__NR_Linux + 263)
 
-#define __NR_Linux_syscalls	263
+#define __NR_Linux_syscalls	264
 
 #define HPUX_GATEWAY_ADDR	0xC0000004
 #define LINUX_GATEWAY_ADDR	0x100


We are also missing a few other syscalls:
	__NR_sys_kexec_load
	__NR_add_key
	__NR_request_key
	__NR_keyctl

Should I add those as well?

thanks,
grant


> FYI:
> 
> linux-vserver both 1.x and the upcoming 2.0 do
> support parisc/hppa quite fine ...
> 
> Linux-VServer Test [V0.12] (C) 2003-2005 H.Poetzl
> chcontext is working.
> chbind is working.
> Linux 2.6.11.8-pa4-vs2.0-pre4 parisc64/0.30.207/0.30.207 [Ea]
> VCI:  0001:0025 273 03110076
> ---
> [000]# succeeded.
> [001]# succeeded.
> [011]# succeeded.
> [031]# succeeded.
> [101]# succeeded.
> [102]# succeeded.
> [201]# succeeded.
> [202]# succeeded.
> 
> and basically all other archs except the parisc/hppa
> arch has already reserved a syscall number for it ..
> 
>  arch      number  maintainer
>  x86_64       236  [Andi Kleen]
>  s390         263  [Martin Schwidefsky]
>  sparc/64     267  [David S.Miller]
>  i386         273  [Rik/Linus/Andrew]
>  sh           273  [Kazumoto Kojima]
>  sh64         301  [Paul Mundt?]
>  ppc/64       257  [Benjamin Herrenschmidt]
>  mips o32     277  [Ralf Baechle]
>  mips N64     236  [Ralf Baechle]
>  mips N32     240  [Ralf Baechle]
>  m68k         278  [Geert Uytterhoeven]
>  h8300        273  [Yoshinori Sato]
>  alpha        428  [Richard Henderson]
>  ia64        1269  [David Mosberger]
>  arm/arm26    313  [Russell M.King]
> 
> would be really nice if I could add parisc/hppa to 
> this list ...
> 
> TIA,
> Herbert
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Subject: [parisc-linux] 2.6.12-rc3-pa3 usb keyboard and mouse don't respond
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I tried 2.6.12-rc3-pa3 yesterday but the console keyboard and mouse
(usb) didn't respond after X came up.  I couldn't see any difference
in the log files between this version and 2.6.11-pa4.  2.6.11-pa4
boots ok.  Is this a known problem?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] 2.6.12-rc3-pa3 usb keyboard and mouse don't respond
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On Sun, May 08, 2005 at 12:23:50PM -0400, John David Anglin wrote:
> I tried 2.6.12-rc3-pa3 yesterday but the console keyboard and mouse
> (usb) didn't respond after X came up.  I couldn't see any difference
> in the log files between this version and 2.6.11-pa4.  2.6.11-pa4
> boots ok.  Is this a known problem?
> 

I meant to look into this, but then got hit with finals and work. I'll
try to take a look today.

It appears to be a change in the OHCI driver. If you diff the dmesg
from 2.6.11-pa4 to anything later than 2.6.12-rc1 (iirc), a few
suspicious changes in what OHCI spews are revealed. (I believe it was
something about legacy i/o registers, or something). Just need a little
while to crawl through bkweb looking for changes there.

Cheers,
-- 
Kyle McMartin
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Experimental packages can be found at

  http://people.debian.org/~doko/binutils/

Feedback welcome.

    Matthias
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Hello Matthias,

>Experimental packages can be found at
>
>  http://people.debian.org/~doko/binutils/
>
> Feedback welcome.

Just installed on a chroot disk to rebuild latest 2.6.12-rc4-pa0 on a b18=
0
Debian unstable installed.

No pb to build this kernel which boot fine on this system ;-)

(still have to stress the kernel but that's another story :-) )

I will also try to rebuild gcc-4.0 (4.0.0-6) on this system or do you hav=
e
some other better test to suggest?

Joel

PS: Sorry if that break the mail thread but I didn't recieved any m-l mai=
l
since a day :-(


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> 
> I tried 2.6.12-rc3-pa3 yesterday but the console keyboard and mouse
> (usb) didn't respond after X came up.  I couldn't see any difference
> in the log files between this version and 2.6.11-pa4.  2.6.11-pa4
> boots ok.  Is this a known problem?
> 
Could it be linked to this related pb:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2005-March/026155.h=
tml>

I had to remove usb support to boot my b2k with 2.6.12-rc1 because of the=

re-work of usb api 
(looks like pci api change) but sorry I didn't find more time to track it=

down :-(

Joel


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Hello guys,

Many users are reporting me problems with kernel after 2.6.10-pa11. I've
had the problem myself on both my C3600 and my B180L.
When you upload or download big files via NFS, the kernel crash with no
more message than :
Kernel panic - not syncing

The nfs share can be either udp or tcp. That doesn't matter.

Is this a know problem ? Is there a workaround (don't tell me samba :) ?

Feel free to ask if you want more info or if you want me to do some
tests.


Cheers

--=20
Guy Martin
Gentoo Linux - HPPA port Lead / IPv6 team


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On Thu, May 12, 2005 at 02:46:17PM +0200, Guy Martin wrote:
> 
> Hello guys,
> 
> Many users are reporting me problems with kernel after 2.6.10-pa11.

Just to make sure I understand: 2.6.10-pa11 works fine?
And this NFS problem is with any 2.6.11 kernels?

I ask because 2.6.10-pa11 was the last parisc specific version
and was committed to CVS exactly 4 monthes ago: 2005/01/12

> I've had the problem myself on both my C3600 and my B180L.
> When you upload or download big files via NFS, the kernel crash with no
> more message than :
> Kernel panic - not syncing
> 
> The nfs share can be either udp or tcp. That doesn't matter.
> 
> Is this a know problem ? Is there a workaround (don't tell me samba :) ?

Sorry, I don't.
My advice is to troll for 2.6.11 bug reports on netdev or linux-kernel
mailing lists. Ie. abuse google for "linux 2.6.11 NFS bug" searches
and variants of those (or additional) keywords.

> Feel free to ask if you want more info or if you want me to do some
> tests.

Has anyone tried to reproduce this with 2.6.12-rc3 or -rc4 kernels?

thanks,
grant
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On Thu, 12 May 2005 09:05:35 -0600
Grant Grundler <grundler@parisc-linux.org> wrote:

> Just to make sure I understand: 2.6.10-pa11 works fine?
> And this NFS problem is with any 2.6.11 kernels?

Yes, 2.6.10-pa11 works fine but kernels after this one breaks, up to the
latest 2.6.12-rc4-pa2 with which I just tried.

> I ask because 2.6.10-pa11 was the last parisc specific version
> and was committed to CVS exactly 4 monthes ago: 2005/01/12
>=20
> > Is this a know problem ? Is there a workaround (don't tell me samba
> > :) ?
>=20
> Sorry, I don't.
> My advice is to troll for 2.6.11 bug reports on netdev or linux-kernel
> mailing lists. Ie. abuse google for "linux 2.6.11 NFS bug" searches
> and variants of those (or additional) keywords.

Ok I'll do. Btw I don't have this problem on my x86 boxes. I may also
not be a NFS bug but maybe a network driver related problem or else.
However it works fine using samba but samba is slower than NFS tho.

I should do some test using netcat or any other way to generate a high
traffic load on the interface. But right now, I only had reports of
users complaining about NFS.

Are you able to reproduce the problem ?

Thanks

--=20
Guy Martin
Gentoo Linux - HPPA port Lead / IPv6 team

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On Thu, May 12, 2005 at 05:14:04PM +0200, Guy Martin wrote:
> Yes, 2.6.10-pa11 works fine but kernels after this one breaks, up to the
> latest 2.6.12-rc4-pa2 with which I just tried.

ok - that's good to know.

> I should do some test using netcat or any other way to generate a high
> traffic load on the interface. But right now, I only had reports of
> users complaining about NFS.

Yeah, given the samba works, and regular networking I assume works,
someone will have to explain how NFS is different to me.

> Are you able to reproduce the problem ?

I can't try right now. I'm trying to cleanup the uses of RFI
in the asm code and it's working. I should finish that this weekend
and then need to work on mpt/fusion driver HPMC.

If someone else does, please post results.

thanks,
grant
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Hello all,

I try to figure out what's wrong with ccio-dma for 64bit and put on DEBUG=
_INIT
an collect:
for 32bit kernel:
...
Setting cache flush threshold to 20 (1 CPUs online)
Found U2 at 0xfff88000
ccio_ioc_init() hpa 0xfff88000 mem 256MB IOV 128MB (27 bits)
 base 10740000
ccio_ioc_init() res_size 0x1000
 chainid_shift 0x13 
Found U2 at 0xfff8a000
ccio_ioc_init() hpa 0xfff8a000 mem 256MB IOV 128MB (27 bits) 
 base 10780000 
ccio_ioc_init() res_size 0x1000
 chainid_shift 0x13 
Lasi version 0 at 0xffd00000 found.
...

Otc for 64bit kernel:
...
Setting cache flush threshold to ee7c0 (1 CPUs online)
Found U2 at 0xfffffffffff88000
ccio_ioc_init() hpa 0xfffffffffff88000 mem 256MB IOV 128MB (27 bits) 
 base 0000000010a80000 
ccio_ioc_init() res_size 0x1000
 chainid_shift 0x13 
Found U2 at 0xfffffffffff8a000
ccio_ioc_init() hpa 0xfffffffffff8a000 mem 256MB IOV 128MB (27 bits) 
 base 0000000010ac0000
ccio_ioc_init() res_size 0x1000
 chainid_shift 0x13 
...

mmm base address seems to be wrong.

Any idea from where came this pb?

Thanks,
    Joel


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On Thu, May 12, 2005 at 07:37:27PM +0200, Joel Soete wrote:
> Hello all,
> 
> I try to figure out what's wrong with ccio-dma for 64bit and put on DEBUG_INIT
> an collect:
> for 32bit kernel:
>  base 10740000
>  base 10780000
> ...
> 
> Otc for 64bit kernel:
> ...
>  base 0000000010a80000
>  base 0000000010ac0000
> ...
> 
> mmm base address seems to be wrong.

You mean it's different. What makes you think it's wrong?

grant
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Subject: Re: [parisc-linux] ccio-dma 64bit debug_init info
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> 
> On Fri, May 13, 2005 at 07:50:05AM +0200, Joel Soete wrote:
> > Ah I thought (too quickly) that it could be the reason why:
> > ...
> > ccio-dma.c: failed to claim CCIO bus address space (ffffffff00000000,=
ffffffffffffffff)
> 
> That's a completely different issue.
> It would be interesting to know why it's asking for that range.
> Where are the values of that range coming from?
> (ie what is the origin of ffffffff00000000 value)
> 
Ah ok I will check...

btw 32 claimed are:
Setting cache flush threshold to 40 (1 CPUs online)
Found U2 at 0xfff88000
ccio_init_resource: claim CCIO bus address space (f1000000,f17fffff)
ccio_init_resource: claim CCIO bus address space (fc000000,fff7ffff)
Found U2 at 0xfff8a000
ccio_init_resource: claim CCIO bus address space (f1800000,f1ffffff)

(just added printk at the end of ccio_init :-)

Thanks,
    Joel


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Subject: RE: [parisc-linux] NFS problems : kernel panic
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Hello GMsoft,

:-)

>
> Many users are reporting me problems with kernel after 2.6.10-pa11. I'v=
e
> had the problem myself on both my C3600 and my B180L.
> When you upload or download big files via NFS, the kernel crash with no=

> more message than :
> Kernel panic - not syncing
>
> The nfs share can be either udp or tcp. That doesn't matter.
>
> Is this a know problem ? Is there a workaround (don't tell me samba :)
?
>
mmm upload/download BIG files that sounds like file transfer?
Isn't it more secure to use scp or sftp for such case?

btw I use regulary such kind of ft:
cd /CVS/hppa; tar -cslp linux-2.6 | tar -C /usr/src -xslpf;
(/CVS being a nfs mp)
So that looks like a file of 200Mb (at about 350k/s on a 10M-half dusplex=

;-)
without pb?

Any way, that remember me vaguely that at a moment I also encountered nfs=

pb during such operation.
It seems that I find a work-around by removing nfs-v4 support from my ker=
nel?
(but I am very not sure: very very vague souvenir)
Just in case, here is my nfs config:
#
# Network File Systems
#
CONFIG_NFS_FS=3Dy
CONFIG_NFS_V3=3Dy
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_DIRECTIO is not set
CONFIG_NFSD=3Dy
CONFIG_NFSD_V3=3Dy
# CONFIG_NFSD_V4 is not set
CONFIG_NFSD_TCP=3Dy
CONFIG_ROOT_NFS=3Dy
CONFIG_LOCKD=3Dy
CONFIG_LOCKD_V4=3Dy
CONFIG_EXPORTFS=3Dy
CONFIG_SUNRPC=3Dy

> Feel free to ask if you want more info or if you want me to do some
> tests.
>
Sorry not enough clue to track this.

Joel


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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Linux-VServer syscall number for parisc
	(hppa/64) ...
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Cc: parisc-linux@lists.parisc-linux.org,
 Matthew Wilcox <matthew@wil.cx>
To: Herbert Poetzl <herbert@13thfloor.at>
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On Thu, May 05, 2005 at 11:37:57PM -0600, Grant Grundler wrote:
> We are also missing a few other syscalls:
> 	__NR_sys_kexec_load
> 	__NR_add_key
> 	__NR_request_key
> 	__NR_keyctl

Herbert,
I've got a patch ready that adds vserver (263) and the three
key syscalls. I'm not touching sys_kexec_load since it's arch
specific and no one has asked for it.

I checked sparc64 syscall_table.S and it looks like the key syscalls
do NOT need 32-bit compat wrappers.
I did NOT audit the key handling code.

Patch is on
	ftp://ftp.parisc-linux.org/patches/diff-2.6.12-rc4-pa4-vserver

I'll commit this in a bit unless willy or someone else yells.

grant
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From: Herbert Poetzl <herbert@13thfloor.at>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Linux-VServer syscall number for parisc
	(hppa/64) ...
Date: Sun, 15 May 2005 01:27:26 +0200
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Cc: parisc-linux@lists.parisc-linux.org,
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On Sat, May 14, 2005 at 05:04:52PM -0600, Grant Grundler wrote:
> On Thu, May 05, 2005 at 11:37:57PM -0600, Grant Grundler wrote:
> > We are also missing a few other syscalls:
> > 	__NR_sys_kexec_load
> > 	__NR_add_key
> > 	__NR_request_key
> > 	__NR_keyctl
> 
> Herbert,
> I've got a patch ready that adds vserver (263) and the three
> key syscalls. I'm not touching sys_kexec_load since it's arch
> specific and no one has asked for it.
> 
> I checked sparc64 syscall_table.S and it looks like the key syscalls
> do NOT need 32-bit compat wrappers.
> I did NOT audit the key handling code.
> 
> Patch is on
> 	ftp://ftp.parisc-linux.org/patches/diff-2.6.12-rc4-pa4-vserver
> 
> I'll commit this in a bit unless willy or someone else yells.

excellent, thanks a lot!

best,
Herbert

> grant
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From: Thibaut VARENE <varenet@esiee.fr>
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Subject: Re: [parisc-linux] information about a J5600
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-------------------
> On Sun, May 15, 2005 at 05:53:13PM +0200, startus wrote:
> > I bought a J5600 HP in the US. It works with an
> > input voltage of 110 Volt. Before starting it and
> > installing a HPPA DEBIAN, I would like to known if=20
> > it will work directly with an input voltage of 220 or,
> > if I should use electric transformer.
>=20
> AFAIK, all recent HP PA-RISC and IA64 workstations and servers
> are autosensing.

"recent" for the ages: we've got US B180s, 712 and 725 that work just
fine feeded with 220V ;)

> But it's wise to follow Dave's advice and read the label on the back
> of the machine that describes the input voltage/current.

yeah. It has to be written somewhere anyway.

T-Bone
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Xref: news.gmane.org gmane.linux.ports.parisc:22720

Hello Grant,

>
> On Fri, May 13, 2005 at 07:50:05AM +0200, Joel Soete wrote:
> > Ah I thought (too quickly) that it could be the reason why:
> > ...
> > ccio-dma.c: failed to claim CCIO bus address space (ffffffff00000000,=
ffffffffffffffff)
>
> That's a completely different issue.
> It would be interesting to know why it's asking for that range.
> Where are the values of that range coming from?
> (ie what is the origin of ffffffff00000000 value)
>
Here are more DBG_INIT() :-)
32bit kernel:
...
Found devices:
1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0xf, 0x580, 0x0000b }
2. UL 550 Lasi Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x02f, 0x00081 },
 additional addresses: 0xffd0c000 0xffc00000
3. UL 550 Lasi Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x02f, 0x000=
8c
}
4. UL 550 Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x02f, 0x00082 }
5. UL 350 Core LAN (802.3) at 0xffd07000 [8/16/6] { 10, 0x0, 0x02f, 0x000=
8a
}
6. UL 550 Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x02f, 0x0007=
4
},  additional addresses: 0xffd01000 0xffd03000
7. UL 550 Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x02f, 0x00084=

}
8. UL 550 Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x02f, 0x00084=

}
9. UL 550 Core Wax BA at 0xffe00000 [8/20] { 11, 0x0, 0x031, 0x0008e }
10. UL 550 Wax EISA BA at 0xfc000000 [8/20/5] { 11, 0x0, 0x031, 0x00090 }=
,
 additional addresses: 0xffc88000
11. UL 550 Wax Core RS-232 at 0xffe02000 [8/20/2] { 10, 0x0, 0x031, 0x000=
8c
}
12. Bluefish Add-on FW-SCSI at 0xf1004000 [8/4] { 4, 0x1, 0x013, 0x00089
}
13. Bluefish Add-on FW-SCSI at 0xf1008000 [8/8] { 4, 0x1, 0x013, 0x00089
}
14. Bluefish Add-on FW-SCSI at 0xf100c000 [8/12] { 4, 0x1, 0x013, 0x00089=

}
15. U2-IOA BC GSC+ Port at 0xf103f000 [8/63] { 7, 0x1, 0x501, 0x0000c }
16. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0xf, 0x580, 0x0000b }
17. U2-IOA BC GSC+ Port at 0xf183f000 [10/63] { 7, 0x1, 0x501, 0x0000c }
18. UL proc 2-way U180 1M/1M at 0xfffa0000 [32] { 0, 0x0, 0x5aa, 0x00004
}
19. UL proc 2-way U180 1M/1M at 0xfffa2000 [34] { 0, 0x0, 0x5aa, 0x00004
}
20. Memory at 0xfffb1000 [49] { 1, 0x0, 0x07c, 0x00009 }
CONFIG_SMP=3Dn  ignoring additional CPUs
CPU: probe of 34 failed with error 1
CPU(s): 1 x PA8000 (PCX-U) at 180.000000 MHz
Setting cache flush threshold to 20 (1 CPUs online)
Found U2 at 0xfff88000
ccio_probe() ioc_count 0
ccio_probe() dev->hpa fff88000
ccio_probe() ioc->ioc_regs fff88000
ccio_ioc_init() num_physpages 65536
     count_parisc_driver 2
     iova_space_size 32768
     limited iova_space_size 32768
     iov_order 15
     iova_space_size now bytes 134217728
     ioc->pdir_size 262144
ccio_ioc_init() hpa 0xfff88000 mem 256MB IOV 128MB (27 bits)
ccio_ioc_init() pdir 10740000 size 40000
 base 10740000
ccio_ioc_init() res_size 0x1000
ccio_ioc_init() res_map 106b7000 size 1000
 chainid_shift 0x13
ccio_init_resource(res=3D10712c68, name=3DGSC Bus [8/], ioaddr=3Dfff88078=
)
ccio_init_resource() res->start f1000000
ccio_init_resource() res->end f17fffff
ccio_init_resource() res->end + 1  f1800000
ccio_init_resource() claimed CCIO bus address space (f1000000, f17fffff)
ccio_init_resource(res=3D10712c84, name=3DGSC Bus [8/], ioaddr=3Dfff88060=
)
ccio_init_resource() res->start fc000000
ccio_init_resource() res->end fff7ffff
ccio_init_resource() res->end + 1  fff80000
ccio_init_resource() claimed CCIO bus address space (fc000000, fff7ffff)
Found U2 at 0xfff8a000
ccio_probe() ioc_count 1
ccio_probe() dev->hpa fff8a000
ccio_probe() ioc->ioc_regs fff8a000
ccio_ioc_init() num_physpages 65536
     count_parisc_driver 2
     iova_space_size 32768
     limited iova_space_size 32768
     iov_order 15
     iova_space_size now bytes 134217728
     ioc->pdir_size 262144
ccio_ioc_init() hpa 0xfff8a000 mem 256MB IOV 128MB (27 bits)
ccio_ioc_init() pdir 10780000 size 40000
 base 10780000
ccio_ioc_init() res_size 0x1000
ccio_ioc_init() res_map 106b9000 size 1000
 chainid_shift 0x13
ccio_init_resource(res=3D1071245c, name=3DGSC Bus [10/], ioaddr=3Dfff8a07=
8)
ccio_init_resource() res->start f1800000
ccio_init_resource() res->end f1ffffff
ccio_init_resource() res->end + 1  f2000000
ccio_init_resource() claimed CCIO bus address space (f1800000, f1ffffff)
ccio_init_resource(res=3D10712478, name=3DGSC Bus [10/], ioaddr=3Dfff8a06=
0)
ccio_init_resource() res->start 00000000
ccio_init_resource() res->end ffffffff
ccio_init_resource() res->end + 1  00000000
Lasi version 0 at 0xffd00000 found.
...

64bit kernel:
Found devices:
1. U2-IOA BC Runway Port at 0xfffffffffff88000 [8] { 12, 0xf, 0x580, 0x00=
00b
}
2. UL 550 Lasi Core BA at 0xffffffffffd00000 [8/16] { 11, 0x0, 0x02f, 0x0=
0081
},  additional addresses: 0xffffffffffd0c000 0xffffffffffc00000
3. UL 550 Lasi Core RS-232 at 0xffffffffffd05000 [8/16/4] { 10, 0x0, 0x02=
f,
0x0008c }
4. UL 550 Core SCSI at 0xffffffffffd06000 [8/16/5] { 10, 0x0, 0x02f, 0x00=
082
}
5. UL 350 Core LAN (802.3) at 0xffffffffffd07000 [8/16/6] { 10, 0x0, 0x02=
f,
0x0008a }
6. UL 550 Core Centronics at 0xffffffffffd02000 [8/16/0] { 10, 0x0, 0x02f=
,
0x00074 },  additional addresses: 0xffffffffffd01000 0xffffffffffd03000
7. UL 550 Core PS/2 Port at 0xffffffffffd08000 [8/16/7] { 10, 0x0, 0x02f,=

0x00084 }
8. UL 550 Core PS/2 Port at 0xffffffffffd08100 [8/16/8] { 10, 0x0, 0x02f,=

0x00084 }
9. UL 550 Core Wax BA at 0xffffffffffe00000 [8/20] { 11, 0x0, 0x031, 0x00=
08e
}
10. UL 550 Wax EISA BA at 0xfffffffffc000000 [8/20/5] { 11, 0x0, 0x031, 0=
x00090
},  additional addresses: 0xffffffffffc88000
11. UL 550 Wax Core RS-232 at 0xffffffffffe02000 [8/20/2] { 10, 0x0, 0x03=
1,
0x0008c }
12. Bluefish Add-on FW-SCSI at 0xfffffffff1004000 [8/4] { 4, 0x1, 0x013,
0x00089 }
13. Bluefish Add-on FW-SCSI at 0xfffffffff1008000 [8/8] { 4, 0x1, 0x013,
0x00089 }
14. Bluefish Add-on FW-SCSI at 0xfffffffff100c000 [8/12] { 4, 0x1, 0x013,=

0x00089 }
15. U2-IOA BC GSC+ Port at 0xfffffffff103f000 [8/63] { 7, 0x1, 0x501, 0x0=
000c
}
16. U2-IOA BC Runway Port at 0xfffffffffff8a000 [10] { 12, 0xf, 0x580, 0x=
0000b
}
17. U2-IOA BC GSC+ Port at 0xfffffffff183f000 [10/63] { 7, 0x1, 0x501, 0x=
0000c
}
18. UL proc 2-way U180 1M/1M at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5aa,
0x00004 }
19. UL proc 2-way U180 1M/1M at 0xfffffffffffa2000 [34] { 0, 0x0, 0x5aa,
0x00004 }
20. Memory at 0xfffffffffffb1000 [49] { 1, 0x0, 0x07c, 0x00009 }
CONFIG_SMP=3Dn  ignoring additional CPUs
CPU: probe of 34 failed with error 1
CPU(s): 1 x PA8000 (PCX-U) at 180.000000 MHz
Setting cache flush threshold to e9f80 (1 CPUs online)
Found U2 at 0xfffffffffff88000
ccio_probe() ioc_count 0
ccio_probe() dev->hpa fffffffffff88000
ccio_probe() ioc->ioc_regs fffffffffff88000
ccio_ioc_init() num_physpages 65536
     count_parisc_driver 2
     iova_space_size 32768
     limited iova_space_size 32768
     iov_order 15
     iova_space_size now bytes 134217728
     ioc->pdir_size 262144
ccio_ioc_init() hpa 0xfffffffffff88000 mem 256MB IOV 128MB (27 bits)
ccio_ioc_init() pdir 0000000010a80000 size 40000
 base 0000000010a80000
ccio_ioc_init() res_size 0x1000
ccio_ioc_init() res_map 00000000109e4000 size 1000
 chainid_shift 0x13
ccio_init_resource(res=3D00000000109e3858, name=3DGSC Bus [8/], ioaddr=3D=
fffffffffff88078)
ccio_init_resource() res->start fffffffff1000000
ccio_init_resource() res->end fffffffff17fffff
ccio_init_resource() res->end + 1  fffffffff1800000
ccio_init_resource() claimed CCIO bus address space (fffffffff1000000, ff=
fffffff17fffff)
ccio_init_resource(res=3D00000000109e3890, name=3DGSC Bus [8/], ioaddr=3D=
fffffffffff88060)
ccio_init_resource() res->start fffffffffc000000
ccio_init_resource() res->end fffffffffff7ffff
ccio_init_resource() res->end + 1  fffffffffff80000
ccio_init_resource() claimed CCIO bus address space (fffffffffc000000, ff=
fffffffff7ffff)
Found U2 at 0xfffffffffff8a000
ccio_probe() ioc_count 1
ccio_probe() dev->hpa fffffffffff8a000
ccio_probe() ioc->ioc_regs fffffffffff8a000
ccio_ioc_init() num_physpages 65536
     count_parisc_driver 2
     iova_space_size 32768
     limited iova_space_size 32768
     iov_order 15
     iova_space_size now bytes 134217728
     ioc->pdir_size 262144
ccio_ioc_init() hpa 0xfffffffffff8a000 mem 256MB IOV 128MB (27 bits)
ccio_ioc_init() pdir 0000000010ac0000 size 40000
 base 0000000010ac0000
ccio_ioc_init() res_size 0x1000
ccio_ioc_init() res_map 00000000109e6000 size 1000
 chainid_shift 0x13
ccio_init_resource(res=3D00000000109e5858, name=3DGSC Bus [10/], ioaddr=3D=
fffffffffff8a078)
ccio_init_resource() res->start fffffffff1800000
ccio_init_resource() res->end fffffffff1ffffff
ccio_init_resource() res->end + 1  fffffffff2000000
ccio_init_resource() claimed CCIO bus address space (fffffffff1800000, ff=
fffffff1ffffff)
ccio_init_resource(res=3D00000000109e5890, name=3DGSC Bus [10/], ioaddr=3D=
fffffffffff8a060)
ccio_init_resource() res->start ffffffff00000000
ccio_init_resource() res->end ffffffffffffffff
ccio_init_resource() res->end + 1  0000000000000000
ccio_init_resource() failed to claim CCIO bus address space (ffffffff0000=
0000,
ffffffffffffffff)
ccio_init_resource() claimed CCIO bus address space (ffffffff00000000, ff=
ffffffffffffff)
Lasi version 0 at 0xffffffffffd00000 found.

even thought I have no doc to now what would means:
        res->start =3D (unsigned long)(signed) READ_U32(ioaddr) << 16; (=3D=
=3D
0x0 in 32bits)
        res->end =3D (unsigned long)(signed) (READ_U32(ioaddr + 4) << 16)=
 -
1; (=3D=3D 0xffffffff in 32bits too)

but seems that test:
        if (res->end + 1 =3D=3D res->start)
is a stuff which not love 64bit :-(

Any idea?

Thanks,
    Joel

PS: I also noticed something weird versus my c110:
Found devices:
1. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0x7, 0x580, 0x0000b }
...
4. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0x7, 0x580, 0x0000b }
...
Found U2 at 0xfff8a000
...
ccio_init_resource(res=3D10be2434, name=3DGSC Bus [10/], ioaddr=3Dfff8a07=
8)
ccio_init_resource() claimed CCIO bus address space (f3fc0000, f3ffffff)
ccio_init_resource(res=3D10be2450, name=3DGSC Bus [10/], ioaddr=3Dfff8a06=
0)
ccio_init_resource() claimed CCIO bus address space (f4000000, f7ffffff)
Found U2 at 0xfff88000
...
ccio_init_resource(res=3D10becc34, name=3DGSC Bus [8/], ioaddr=3Dfff88078=
)
ccio_init_resource() claimed CCIO bus address space (f3f80000, f3fbffff)
ccio_init_resource(res=3D10becc50, name=3DGSC Bus [8/], ioaddr=3Dfff88060=
)
ccio_init_resource() claimed CCIO bus address space (f8000000, ffe3ffff)
...

So there are well (2*2) resources initialized.

OTC on the d380 (32bit kernel)
Found devices:
1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0xf, 0x580, 0x0000b }
...
16. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0xf, 0x580, 0x0000b }
...
Found U2 at 0xfff88000
...
ccio_init_resource(res=3D10712c68, name=3DGSC Bus [8/], ioaddr=3Dfff88078=
)
ccio_init_resource() claimed CCIO bus address space (f1000000, f17fffff)
ccio_init_resource(res=3D10712c84, name=3DGSC Bus [8/], ioaddr=3Dfff88060=
)
ccio_init_resource() claimed CCIO bus address space (fc000000, fff7ffff)
Found U2 at 0xfff8a000
...
ccio_init_resource(res=3D1071245c, name=3DGSC Bus [10/], ioaddr=3Dfff8a07=
8)
ccio_init_resource() claimed CCIO bus address space (f1800000, f1ffffff)
ccio_init_resource(res=3D10712478, name=3DGSC Bus [10/], ioaddr=3Dfff8a06=
0)
...
if I well understand only 3 resources initialized?


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Xref: news.gmane.org gmane.linux.ports.parisc:22721

Hi all,

LaMont wanted this for a Debian machine, so I bashed this out,
any objections?

 arch/parisc/kernel/unaligned.c |   16 ++++++++++------
 include/asm-parisc/processor.h |   19 +++++++++++++++++++
 kernel/sys.c                   |    1 +
 3 files changed, 30 insertions(+), 6 deletions(-)

kernel/sys.c :
	Add explicit include of processor.h since we're using macros that
	both hppa and ia64 use there.

arch/parisc/kernel/unaligned.c :
	Force a SIGBUS if desired on a per thread basis.

Index: arch/parisc/kernel/unaligned.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/unaligned.c,v
retrieving revision 1.14
diff -u -d -p -r1.14 unaligned.c
--- arch/parisc/kernel/unaligned.c	4 Oct 2004 19:12:49 -0000	1.14
+++ arch/parisc/kernel/unaligned.c	18 May 2005 22:50:12 -0000
@@ -513,15 +513,18 @@ void handle_unaligned(struct pt_regs *re
 	register int flop=0;	/* true if this is a flop */
 
 	/* log a message with pacing */
-	if (user_mode(regs))
-	{
-		if (unaligned_count > 5 && jiffies - last_time > 5*HZ)
-		{
+	if (user_mode(regs)) {
+                if (current->thread.flags & PARISC_UAC_SIGBUS) {
+                        goto force_sigbus;
+                }
+
+		if (unaligned_count > 5 && jiffies - last_time > 5*HZ) {
 			unaligned_count = 0;
 			last_time = jiffies;
 		}
-		if (++unaligned_count < 5)
-		{
+
+		if (!(current->thread.flags & PARISC_UAC_NOPRINT) 
+                    && ++unaligned_count < 5) {
 			char buf[256];
 			sprintf(buf, "%s(%d): unaligned access to 0x" RFMT " at ip=0x" RFMT "\n",
 				current->comm, current->pid, regs->ior, regs->iaoq[0]);
@@ -530,6 +533,7 @@ void handle_unaligned(struct pt_regs *re
 			show_regs(regs);
 #endif		
 		}
+
 		if (!unaligned_enabled)
 			goto force_sigbus;
 	}
Index: include/asm-parisc/processor.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/processor.h,v
retrieving revision 1.11
diff -u -d -p -r1.11 processor.h
--- include/asm-parisc/processor.h	12 Jan 2005 20:17:51 -0000	1.11
+++ include/asm-parisc/processor.h	18 May 2005 22:50:15 -0000
@@ -121,7 +121,26 @@ struct thread_struct {
 }; 
 
 /* Thread struct flags. */
+#define PARISC_UAC_NOPRINT	(1UL << 0)	/* see prctl and unaligned.c */
+#define PARISC_UAC_SIGBUS	(1UL << 1)
 #define PARISC_KERNEL_DEATH	(1UL << 31)	/* see die_if_kernel()... */
+
+#define PARISC_UAC_SHIFT	0
+#define PARISC_UAC_MASK		(PARISC_UAC_NOPRINT|PARISC_UAC_SIGBUS)
+
+#define SET_UNALIGN_CTL(task,value)                                       \
+        ({                                                                \
+        (task)->thread.flags = (((task)->thread.flags & ~PARISC_UAC_MASK) \
+                                | (((value) << PARISC_UAC_SHIFT) &        \
+                                   PARISC_UAC_MASK));                     \
+        0;                                                                \
+        })
+
+#define GET_UNALIGN_CTL(task,addr)                                        \
+        ({                                                                \
+        put_user(((task)->thread.flags & PARISC_UAC_MASK)                 \
+                 >> PARISC_UAC_SHIFT, (int __user *) (addr));             \
+        })
 
 #define INIT_THREAD { \
 	regs:	{	gr: { 0, }, \
Index: kernel/sys.c
===================================================================
RCS file: /var/cvs/linux-2.6/kernel/sys.c,v
retrieving revision 1.25
diff -u -d -p -r1.25 sys.c
--- kernel/sys.c	9 May 2005 02:01:00 -0000	1.25
+++ kernel/sys.c	18 May 2005 22:50:15 -0000
@@ -30,6 +30,7 @@
 #include <linux/compat.h>
 #include <linux/syscalls.h>
 
+#include <asm/processor.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/unistd.h>
-- 
Kyle McMartin
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Subject: Re: [parisc-linux] ccio-dma 64bit debug_init info
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Xref: news.gmane.org gmane.linux.ports.parisc:22722

On Tue, May 17, 2005 at 06:29:18PM +0200, Joel Soete wrote:
> > > ccio-dma.c: failed to claim CCIO bus address space (ffffffff00000000,ffffffffffffffff)
...
> > It would be interesting to know why it's asking for that range.
> > Where are the values of that range coming from?

> 32bit kernel:
...
> ccio_init_resource(res=10712c68, name=GSC Bus [8/], ioaddr=fff88078)
> ccio_init_resource() res->start f1000000
> ccio_init_resource() res->end f17fffff
> ccio_init_resource() res->end + 1  f1800000
> ccio_init_resource() claimed CCIO bus address space (f1000000, f17fffff)
> ccio_init_resource(res=10712c84, name=GSC Bus [8/], ioaddr=fff88060)
> ccio_init_resource() res->start fc000000
> ccio_init_resource() res->end fff7ffff
> ccio_init_resource() res->end + 1  fff80000
> ccio_init_resource() claimed CCIO bus address space (fc000000, fff7ffff)
...

Ah...I forgot that U2/Uturn have two sets of range registers.
One per GSC bus....

BTW, PDC sets all of this address stuff up AFAIK.

...
> ccio_init_resource(res=1071245c, name=GSC Bus [10/], ioaddr=fff8a078)
> ccio_init_resource() res->start f1800000
> ccio_init_resource() res->end f1ffffff
> ccio_init_resource() res->end + 1  f2000000
> ccio_init_resource() claimed CCIO bus address space (f1800000, f1ffffff)
> ccio_init_resource(res=10712478, name=GSC Bus [10/], ioaddr=fff8a060)
> ccio_init_resource() res->start 00000000
> ccio_init_resource() res->end ffffffff
> ccio_init_resource() res->end + 1  00000000
> Lasi version 0 at 0xffd00000 found.
> ...

This last one seems to be disabled.
That's what this code in ccio_init_resource() is testing for:
	if (res->end + 1 == res->start)
                return;
 
/me puts on his fortune teller hat and looks in his crystal ball:
	"Joel will be submitting a patch shortly...You must add a comment
	explaining WTF this test is doing..."


> 64bit kernel:
...
> ccio_init_resource(res=00000000109e3858, name=GSC Bus [8/], ioaddr=fffffffffff88078)
> ccio_init_resource() res->start fffffffff1000000
> ccio_init_resource() res->end fffffffff17fffff
> ccio_init_resource() res->end + 1  fffffffff1800000
> ccio_init_resource() claimed CCIO bus address space (fffffffff1000000, fffffffff17fffff)
> ccio_init_resource(res=00000000109e3890, name=GSC Bus [8/], ioaddr=fffffffffff88060)
> ccio_init_resource() res->start fffffffffc000000
> ccio_init_resource() res->end fffffffffff7ffff
> ccio_init_resource() res->end + 1  fffffffffff80000
> ccio_init_resource() claimed CCIO bus address space (fffffffffc000000, fffffffffff7ffff)

No problem with the first one.

...
> ccio_init_resource(res=00000000109e5858, name=GSC Bus [10/], ioaddr=fffffffffff8a078)
> ccio_init_resource() res->start fffffffff1800000
> ccio_init_resource() res->end fffffffff1ffffff
> ccio_init_resource() res->end + 1  fffffffff2000000
> ccio_init_resource() claimed CCIO bus address space (fffffffff1800000, fffffffff1ffffff)
> ccio_init_resource(res=00000000109e5890, name=GSC Bus [10/], ioaddr=fffffffffff8a060)
> ccio_init_resource() res->start ffffffff00000000
> ccio_init_resource() res->end ffffffffffffffff
> ccio_init_resource() res->end + 1  0000000000000000

This fails because io_io_low/high registers in reality are only 16 bits.
The upper 16 bits are hardcoded to 1's.
The conversion of res->start to 64-bit is wrong for this one case:
	res->start = (unsigned long)(signed) __raw_readl(ioaddr) << 16;

__raw_readl(ioaddr) returns 0xffff0000.
0xffff0000 << 16 should be 0 but it's not since this is 64-bit.
That line should read something like:
	res->start = (unsigned long) ((signed) __raw_readl(ioaddr) << 16);

And please add a comment here too that parenthesis *do* matter.
Then it should fail the same test that I point out above....

> ccio_init_resource() failed to claim CCIO bus address space (ffffffff00000000,
> ffffffffffffffff)

...and we wouldn't even try to acquire this range.

> ccio_init_resource() claimed CCIO bus address space (ffffffff00000000, ffffffffffffffff)
> Lasi version 0 at 0xffffffffffd00000 found.
> 
> even thought I have no doc to now what would means:
>         res->start = (unsigned long)(signed) READ_U32(ioaddr) << 16; (==
> 0x0 in 32bits)
>         res->end = (unsigned long)(signed) (READ_U32(ioaddr + 4) << 16) -
> 1; (== 0xffffffff in 32bits too)
> 
> but seems that test:
>         if (res->end + 1 == res->start)
> is a stuff which not love 64bit :-(

You almost got it right.

grant
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Subject: Re: [parisc-linux] ccio-dma 64bit debug_init info
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Hello Grant,

Sorry for delay but I encountered some config pb with my isp imp config :=
-(

>
> On Tue, May 17, 2005 at 06:29:18PM +0200, Joel Soete wrote:
> > > > ccio-dma.c: failed to claim CCIO bus address space (ffffffff00000=
000,ffffffffffffffff)
> ...
> > > It would be interesting to know why it's asking for that range.
> > > Where are the values of that range coming from?
>
> > 32bit kernel:
> ...
> > ccio_init_resource(res=3D10712c68, name=3DGSC Bus [8/], ioaddr=3Dfff8=
8078)
> > ccio_init_resource() res->start f1000000
> > ccio_init_resource() res->end f17fffff
> > ccio_init_resource() res->end + 1  f1800000
> > ccio_init_resource() claimed CCIO bus address space (f1000000, f17fff=
ff)
> > ccio_init_resource(res=3D10712c84, name=3DGSC Bus [8/], ioaddr=3Dfff8=
8060)
> > ccio_init_resource() res->start fc000000
> > ccio_init_resource() res->end fff7ffff
> > ccio_init_resource() res->end + 1  fff80000
> > ccio_init_resource() claimed CCIO bus address space (fc000000, fff7ff=
ff)
> ...
>
> Ah...I forgot that U2/Uturn have two sets of range registers.
> One per GSC bus....
>
No pb ;-)

> BTW, PDC sets all of this address stuff up AFAIK.
>
Any idea where is the doc about this feature?

> ...
> > ccio_init_resource(res=3D1071245c, name=3DGSC Bus [10/], ioaddr=3Dfff=
8a078)
> > ccio_init_resource() res->start f1800000
> > ccio_init_resource() res->end f1ffffff
> > ccio_init_resource() res->end + 1  f2000000
> > ccio_init_resource() claimed CCIO bus address space (f1800000, f1ffff=
ff)
> > ccio_init_resource(res=3D10712478, name=3DGSC Bus [10/], ioaddr=3Dfff=
8a060)
> > ccio_init_resource() res->start 00000000
> > ccio_init_resource() res->end ffffffff
> > ccio_init_resource() res->end + 1  00000000
> > Lasi version 0 at 0xffd00000 found.
> > ...
>
> This last one seems to be disabled.
Ah ok (any idea why? hw failure?)

> That's what this code in ccio_init_resource() is testing for:
> 	if (res->end + 1 =3D=3D res->start)
>                 return;
>
> /me puts on his fortune teller hat and looks in his crystal ball:
> 	"Joel will be submitting a patch shortly...You must add a comment
> 	explaining WTF this test is doing..."
>
Ok ;-)

>
> > 64bit kernel:
> ...
> > ccio_init_resource(res=3D00000000109e3858, name=3DGSC Bus [8/], ioadd=
r=3Dfffffffffff88078)
> > ccio_init_resource() res->start fffffffff1000000
> > ccio_init_resource() res->end fffffffff17fffff
> > ccio_init_resource() res->end + 1  fffffffff1800000
> > ccio_init_resource() claimed CCIO bus address space (fffffffff1000000=
,
> fffffffff17fffff)
> > ccio_init_resource(res=3D00000000109e3890, name=3DGSC Bus [8/], ioadd=
r=3Dfffffffffff88060)
> > ccio_init_resource() res->start fffffffffc000000
> > ccio_init_resource() res->end fffffffffff7ffff
> > ccio_init_resource() res->end + 1  fffffffffff80000
> > ccio_init_resource() claimed CCIO bus address space (fffffffffc000000=
,
> fffffffffff7ffff)
>
> No problem with the first one.
>
(as far as i understand, yes )

> ...
> > ccio_init_resource(res=3D00000000109e5858, name=3DGSC Bus [10/], ioad=
dr=3Dfffffffffff8a078)
> > ccio_init_resource() res->start fffffffff1800000
> > ccio_init_resource() res->end fffffffff1ffffff
> > ccio_init_resource() res->end + 1  fffffffff2000000
> > ccio_init_resource() claimed CCIO bus address space (fffffffff1800000=
,
> fffffffff1ffffff)
> > ccio_init_resource(res=3D00000000109e5890, name=3DGSC Bus [10/], ioad=
dr=3Dfffffffffff8a060)
> > ccio_init_resource() res->start ffffffff00000000
> > ccio_init_resource() res->end ffffffffffffffff
> > ccio_init_resource() res->end + 1  0000000000000000
>
> This fails because io_io_low/high registers in reality are only 16 bits=
.
> The upper 16 bits are hardcoded to 1's.
> The conversion of res->start to 64-bit is wrong for this one case:
> 	res->start =3D (unsigned long)(signed) __raw_readl(ioaddr) << 16;
>
> __raw_readl(ioaddr) returns 0xffff0000.
> 0xffff0000 << 16 should be 0 but it's not since this is 64-bit.
> That line should read something like:
> 	res->start =3D (unsigned long) ((signed) __raw_readl(ioaddr) << 16);
>
cool ;-)

> And please add a comment here too that parenthesis *do* matter.
> Then it should fail the same test that I point out above....
>
> > ccio_init_resource() failed to claim CCIO bus address space (ffffffff=
00000000,
> > ffffffffffffffff)
>
> ...and we wouldn't even try to acquire this range.
>
> > ccio_init_resource() claimed CCIO bus address space (ffffffff00000000=
,
> ffffffffffffffff)
> > Lasi version 0 at 0xffffffffffd00000 found.
> >
> > even thought I have no doc to now what would means:
> >         res->start =3D (unsigned long)(signed) READ_U32(ioaddr) << 16=
;
(=3D=3D
> > 0x0 in 32bits)
> >         res->end =3D (unsigned long)(signed) (READ_U32(ioaddr + 4) <<=
 16)
> -
> > 1; (=3D=3D 0xffffffff in 32bits too)
> >
> > but seems that test:
> >         if (res->end + 1 =3D=3D res->start)
> > is a stuff which not love 64bit :-(
>
> You almost got it right.
>
so here is a first patch:
--- drivers/parisc/ccio-dma.c.orig      2005-05-20 08:47:17.000000000 +02=
00
+++ drivers/parisc/ccio-dma.c.orig1     2005-05-20 12:15:35.000000000 +02=
00
@@ -1328,13 +1328,12 @@
        ioc->pdir_base =3D (u64 *)__get_free_pages(GFP_KERNEL,
                                                 get_order(ioc->pdir_size=
));
        if(NULL =3D=3D ioc->pdir_base) {
-               panic("%s:%s() could not allocate I/O Page Table\n", __FI=
LE__,
-                     __FUNCTION__);
+               panic("%s() could not allocate I/O Page Table\n", __FUNCT=
ION__);
        }
        memset(ioc->pdir_base, 0, ioc->pdir_size);

        BUG_ON((((unsigned long)ioc->pdir_base) & PAGE_MASK) !=3D (unsign=
ed
long)ioc->pdir_base);
-       DBG_INIT(" base %p", ioc->pdir_base);
+       DBG_INIT(" base %p\n", ioc->pdir_base);

        /* resource map size dictated by pdir_size */
        ioc->res_size =3D (ioc->pdir_size / sizeof(u64)) >> 3;
@@ -1343,8 +1342,7 @@
        ioc->res_map =3D (u8 *)__get_free_pages(GFP_KERNEL,
                                              get_order(ioc->res_size));
        if(NULL =3D=3D ioc->res_map) {
-               panic("%s:%s() could not allocate resource map\n", __FILE=
__,
-                     __FUNCTION__);
+               panic("%s() could not allocate resource map\n", __FUNCTIO=
N__);
        }
        memset(ioc->res_map, 0, ioc->res_size);

@@ -1394,15 +1392,21 @@

        res->parent =3D NULL;
        res->flags =3D IORESOURCE_MEM;
-       res->start =3D (unsigned long)(signed) __raw_readl(ioaddr) << 16;=

-       res->end =3D (unsigned long)(signed) (__raw_readl(ioaddr + 4) << =
16)
- 1;
+       /*
+        * bracing ((signed) ...) are required for 64bit kernel
+        */
+       res->start =3D (unsigned long)((signed) READ_U32(ioaddr) << 16);
+       res->end =3D (unsigned long)((signed) (READ_U32(ioaddr + 4) << 16=
)
- 1);
        res->name =3D name;
+       /*
+        * Check if the set of range registers is disable
+        */
        if (res->end + 1 =3D=3D res->start)
                return;
        result =3D request_resource(&iomem_resource, res);
        if (result < 0) {
-               printk(KERN_ERR "%s: failed to claim CCIO bus address spa=
ce
(%08lx,%08lx)\n",
-                      __FILE__, res->start, res->end);
+               printk(KERN_ERR "%s() failed to claim CCIO bus address sp=
ace
(%08lx,%08lx)\n",
+                       __FUNCTION__, res->start, res->end);
        }
 }
=3D=3D=3D=3D<>=3D=3D=3D=3D

Some additional stuff:
--- drivers/parisc/ccio-dma.c.orig      2005-05-20 08:47:17.000000000 +02=
00
+++ drivers/parisc/ccio-dma.c.orig1     2005-05-20 12:15:35.000000000 +02=
00
@@ -1328,13 +1328,12 @@
        ioc->pdir_base =3D (u64 *)__get_free_pages(GFP_KERNEL,
                                                 get_order(ioc->pdir_size=
));
        if(NULL =3D=3D ioc->pdir_base) {
-               panic("%s:%s() could not allocate I/O Page Table\n", __FI=
LE__,
-                     __FUNCTION__);
+               panic("%s() could not allocate I/O Page Table\n", __FUNCT=
ION__);
        }
        memset(ioc->pdir_base, 0, ioc->pdir_size);

        BUG_ON((((unsigned long)ioc->pdir_base) & PAGE_MASK) !=3D (unsign=
ed
long)i
oc->pdir_base);
-       DBG_INIT(" base %p", ioc->pdir_base);
+       DBG_INIT(" base %p\n", ioc->pdir_base);

        /* resource map size dictated by pdir_size */
        ioc->res_size =3D (ioc->pdir_size / sizeof(u64)) >> 3;
@@ -1343,8 +1342,7 @@
        ioc->res_map =3D (u8 *)__get_free_pages(GFP_KERNEL,
                                              get_order(ioc->res_size));
        if(NULL =3D=3D ioc->res_map) {
-               panic("%s:%s() could not allocate resource map\n", __FILE=
__,
-                     __FUNCTION__);
+               panic("%s() could not allocate resource map\n", __FUNCTIO=
N__);
        }
        memset(ioc->res_map, 0, ioc->res_size);

@@ -1394,15 +1392,21 @@

        res->parent =3D NULL;
        res->flags =3D IORESOURCE_MEM;
-       res->start =3D (unsigned long)(signed) __raw_readl(ioaddr) << 16;=

-       res->end =3D (unsigned long)(signed) (__raw_readl(ioaddr + 4) << =
16)
- 1;
+       /*
+        * bracing ((signed) ...) are required for 64bit kernel
+        */
+       res->start =3D (unsigned long)((signed) READ_U32(ioaddr) << 16);
+       res->end =3D (unsigned long)((signed) (READ_U32(ioaddr + 4) << 16=
)
- 1);
        res->name =3D name;
+       /*
+        * Check if the set of range registers is disable
+        */
        if (res->end + 1 =3D=3D res->start)
                return;
        result =3D request_resource(&iomem_resource, res);
        if (result < 0) {
-               printk(KERN_ERR "%s: failed to claim CCIO bus address spa=
ce
(%08
lx,%08lx)\n",
-                      __FILE__, res->start, res->end);
+               printk(KERN_ERR "%s() failed to claim CCIO bus address sp=
ace
(%0
8lx,%08lx)\n",
+                       __FUNCTION__, res->start, res->end);
        }
 }

jso@iatst001:~/work$ more ccio-dma.c.diff
--- drivers/parisc/ccio-dma.c.orig      2005-05-20 08:47:17.000000000 +02=
00
+++ drivers/parisc/ccio-dma.c.orig1     2005-05-20 12:15:35.000000000 +02=
00
@@ -1328,13 +1328,12 @@
        ioc->pdir_base =3D (u64 *)__get_free_pages(GFP_KERNEL,
                                                 get_order(ioc->pdir_size=
));
        if(NULL =3D=3D ioc->pdir_base) {
-               panic("%s:%s() could not allocate I/O Page Table\n", __FI=
LE__,
-                     __FUNCTION__);
+               panic("%s() could not allocate I/O Page Table\n", __FUNCT=
ION__);
        }
        memset(ioc->pdir_base, 0, ioc->pdir_size);

        BUG_ON((((unsigned long)ioc->pdir_base) & PAGE_MASK) !=3D (unsign=
ed
long)ioc->pdir_base);
-       DBG_INIT(" base %p", ioc->pdir_base);
+       DBG_INIT(" base %p\n", ioc->pdir_base);

        /* resource map size dictated by pdir_size */
        ioc->res_size =3D (ioc->pdir_size / sizeof(u64)) >> 3;
@@ -1343,8 +1342,7 @@
        ioc->res_map =3D (u8 *)__get_free_pages(GFP_KERNEL,
                                              get_order(ioc->res_size));
        if(NULL =3D=3D ioc->res_map) {
-               panic("%s:%s() could not allocate resource map\n", __FILE=
__,
-                     __FUNCTION__);
+               panic("%s() could not allocate resource map\n", __FUNCTIO=
N__);
        }
        memset(ioc->res_map, 0, ioc->res_size);

@@ -1394,15 +1392,21 @@

        res->parent =3D NULL;
        res->flags =3D IORESOURCE_MEM;
-       res->start =3D (unsigned long)(signed) __raw_readl(ioaddr) << 16;=

-       res->end =3D (unsigned long)(signed) (__raw_readl(ioaddr + 4) << =
16)
- 1;
+       /*
+        * bracing ((signed) ...) are required for 64bit kernel
+        */
+       res->start =3D (unsigned long)((signed) READ_U32(ioaddr) << 16);
+       res->end =3D (unsigned long)((signed) (READ_U32(ioaddr + 4) << 16=
)
- 1);
        res->name =3D name;
+       /*
+        * Check if the set of range registers is disable
+        */
        if (res->end + 1 =3D=3D res->start)
                return;
        result =3D request_resource(&iomem_resource, res);
        if (result < 0) {
-               printk(KERN_ERR "%s: failed to claim CCIO bus address spa=
ce
(%08lx,%08lx)\n",
-                      __FILE__, res->start, res->end);
+               printk(KERN_ERR "%s() failed to claim CCIO bus address sp=
ace
(%08lx,%08lx)\n",
+                       __FUNCTION__, res->start, res->end);
        }
 }

jso@iatst001:~/work$ vi ccio-dma.c.diff
jso@iatst001:~/work$ more ccio-dma.c.diff1
--- drivers/parisc/ccio-dma.c.orig1     2005-05-20 12:15:35.000000000 +02=
00
+++ drivers/parisc/ccio-dma.c   2005-05-20 12:14:50.000000000 +0200
@@ -387,8 +387,7 @@
                       __FILE__,  __FUNCTION__, pages_needed);
        }

-       panic("%s: %s() I/O MMU is out of mapping resources.\n", __FILE__=
,
-             __FUNCTION__);
+       panic("%s() I/O MMU is out of mapping resources.\n", __FUNCTION__=
);

 resource_found:

@@ -578,7 +577,7 @@
        ** WORD 0 - high order word
        */

-#ifdef __LP64__
+#ifdef CONFIG_64BIT
        /*
        ** get bits 12:15 of physical address
        ** shift bits 16:31 of physical address
@@ -589,7 +588,7 @@
        asm volatile ("depd  %1,35,4,%0" : "+r" (pa) : "r" (ci));
 #else
        pa =3D 0;
-#endif
+#endif /* CONFIG_64BIT */
        /*
        ** get CPU coherency index bits
        ** Grab virtual index [0:11]
@@ -1288,10 +1287,10 @@

        if (iova_space_size < (1 << (20 - PAGE_SHIFT))) {
                iova_space_size =3D  1 << (20 - PAGE_SHIFT);
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
        } else if (iova_space_size > (1 << (30 - PAGE_SHIFT))) {
                iova_space_size =3D  1 << (30 - PAGE_SHIFT);
-#endif
+#endif /* CONFIG_64BIT */
        }

        /*
@@ -1487,15 +1486,15 @@
                return 0;

        if (!expand_ioc_area(parent, size, min, max, align)) {
-               __raw_writel(((parent->start)>>16) | 0xffff0000,
+               WRITE_U32(((parent->start)>>16) | 0xffff0000,
                             &ioc->ioc_regs->io_io_low);
-               __raw_writel(((parent->end)>>16) | 0xffff0000,
+               WRITE_U32(((parent->end)>>16) | 0xffff0000,
                             &ioc->ioc_regs->io_io_high);
        } else if (!expand_ioc_area(parent + 1, size, min, max, align)) {=

                parent++;
-               __raw_writel(((parent->start)>>16) | 0xffff0000,
+               WRITE_U32(((parent->start)>>16) | 0xffff0000,
                             &ioc->ioc_regs->io_io_low_hv);
-               __raw_writel(((parent->end)>>16) | 0xffff0000,
+               WRITE_U32(((parent->end)>>16) | 0xffff0000,
                             &ioc->ioc_regs->io_io_high_hv);
        } else {
                return -EBUSY;
=3D=3D=3D=3D<>=3D=3D=3D=3D

and btw some stuff which could interesting sba:
--- drivers/parisc/sba_iommu.c.orig     2005-05-20 09:07:26.000000000 +02=
00
+++ drivers/parisc/sba_iommu.c  2005-05-20 09:33:23.000000000 +0200
@@ -91,7 +91,7 @@
 #define DBG_RES(x...)
 #endif

-#if defined(__LP64__) && !defined(CONFIG_PDC_NARROW)
+#if defined(CONFIG_64BIT) && !defined(CONFIG_PDC_NARROW)
 /* "low end" PA8800 machines use ZX1 chipset */
 #define ZX1_SUPPORT
 #endif
@@ -231,7 +231,7 @@
        spinlock_t      res_lock;
        unsigned int    res_bitshift;   /* from the LEFT! */
        unsigned int    res_size;       /* size of resource map in bytes
*/
-#if SBA_HINT_SUPPORT
+#ifdef SBA_HINT_SUPPORT
 /* FIXME : DMA HINTs not used */
        unsigned long   hint_mask_pdir; /* bits used for DMA hints */
        unsigned int    hint_shift_pdir;
@@ -294,7 +294,7 @@
 /* Looks nice and keeps the compiler happy */
 #define SBA_DEV(d) ((struct sba_device *) (d))

-#if SBA_AGP_SUPPORT
+#ifdef SBA_AGP_SUPPORT
 static int reserve_sba_gart =3D 1;
 #endif

@@ -314,7 +314,7 @@
 #define WRITE_REG32(val, addr) __raw_writel(cpu_to_le32(val), addr)
 #define WRITE_REG64(val, addr) __raw_writeq(cpu_to_le64(val), addr)

-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 #define READ_REG(addr)         READ_REG64(addr)
 #define WRITE_REG(value, addr) WRITE_REG64(value, addr)
 #else
@@ -324,7 +324,7 @@

 #ifdef DEBUG_SBA_INIT

-/* NOTE: When __LP64__ isn't defined, READ_REG64() is two 32-bit reads *=
/
+/* NOTE: When CONFIG_64BIT isn't defined, READ_REG64() is two 32-bit rea=
ds
*/

 /**
  * sba_dump_ranges - debugging only - print ranges assigned to this IOA
@@ -364,7 +364,7 @@
 #else
 #define sba_dump_ranges(x)
 #define sba_dump_tlb(x)
-#endif
+#endif /* DEBUG_SBA_INIT */


 #ifdef ASSERT_PDIR_SANITY
@@ -674,7 +674,7 @@
 *
 ***************************************************************/

-#if SBA_HINT_SUPPORT
+#ifdef SBA_HINT_SUPPORT
 #define SBA_DMA_HINT(ioc, val) ((val) << (ioc)->hint_shift_pdir)
 #endif

@@ -1245,8 +1245,10 @@
        unsigned long pdir_order =3D get_order(pdir_size);

        pdir_base =3D __get_free_pages(GFP_KERNEL, pdir_order);
-       if (NULL =3D=3D (void *) pdir_base)
-               panic("sba_ioc_init() could not allocate I/O Page Table\n=
");
+       if (NULL =3D=3D (void *) pdir_base) {
+               panic("%s() could not allocate I/O Page Table\n",
+                       __FUNCTION__);
+       }

        /* If this is not PA8700 (PCX-W2)
        **      OR newer than ver 2.2
@@ -1354,7 +1356,7 @@
        u32 iova_space_mask;
        u32 iova_space_size;
        int iov_order, tcnfg;
-#if SBA_AGP_SUPPORT
+#ifdef SBA_AGP_SUPPORT
        int agp_found =3D 0;
 #endif
        /*
@@ -1391,7 +1393,7 @@
        DBG_INIT("%s() pdir %p size %x\n",
                        __FUNCTION__, ioc->pdir_base, ioc->pdir_size);

-#if SBA_HINT_SUPPORT
+#ifdef SBA_HINT_SUPPORT
        ioc->hint_shift_pdir =3D iov_order + PAGE_SHIFT;
        ioc->hint_mask_pdir =3D ~(0x3 << (iov_order + PAGE_SHIFT));

@@ -1415,7 +1417,7 @@

        WRITE_REG(ioc->imask, ioc->ioc_hpa + IOC_IMASK);

-#ifdef __LP64__
+#ifdef CONFIG_64BIT
        /*
        ** Setting the upper bits makes checking for bypass addresses
        ** a little faster later on.
@@ -1448,7 +1450,7 @@
        */
        WRITE_REG(ioc->ibase | 31, ioc->ioc_hpa + IOC_PCOM);

-#if SBA_AGP_SUPPORT
+#ifdef SBA_AGP_SUPPORT
        /*
        ** If an AGP device is present, only use half of the IOV space
        ** for PCI DMA.  Unfortunately we can't know ahead of time
@@ -1528,7 +1530,7 @@
        DBG_INIT("%s() pdir %p size %x\n",
                        __FUNCTION__, ioc->pdir_base, pdir_size);

-#if SBA_HINT_SUPPORT
+#ifdef SBA_HINT_SUPPORT
        /* FIXME : DMA HINTs not used */
        ioc->hint_shift_pdir =3D iov_order + PAGE_SHIFT;
        ioc->hint_mask_pdir =3D ~(0x3 << (iov_order + PAGE_SHIFT));
=3D=3D=3D=3D<>=3D=3D=3D=3D
(Just get rid if you dislike)

Thanks,
    Joel




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On Fri, May 20, 2005 at 12:42:05PM +0200, Joel Soete wrote:
> > BTW, PDC sets all of this address stuff up AFAIK.
>
> Any idea where is the doc about this feature?

Sorry, I only know this from experience, not a document.

> > This last one seems to be disabled.
> Ah ok (any idea why? hw failure?)

Because it's not needed?
i.e. no devices downstream

> so here is a first patch:

Does this patch work for you?
Which machine(s) did you test it on?

> --- drivers/parisc/ccio-dma.c.orig      2005-05-20 08:47:17.000000000 +0200
> +++ drivers/parisc/ccio-dma.c.orig1     2005-05-20 12:15:35.000000000 +0200
...
> -       res->start = (unsigned long)(signed) __raw_readl(ioaddr) << 16;
> -       res->end = (unsigned long)(signed) (__raw_readl(ioaddr + 4) << 16)
> - 1;
> +       /*
> +        * bracing ((signed) ...) are required for 64bit kernel

	* bracing ((signed) ...) are required for 64bit kernel because
	* we only want to sign extend the lower 16 bits. The upper 16-bits
	* of range registers are hardcoded to 0xffff.

...
> +       /*
> +        * Check if the set of range registers is disable

	* Check if this MMIO range is disable

...
> Some additional stuff:
> --- drivers/parisc/ccio-dma.c.orig      2005-05-20 08:47:17.000000000 +0200
> +++ drivers/parisc/ccio-dma.c.orig1     2005-05-20 12:15:35.000000000 +0200
> @@ -1328,13 +1328,12 @@

I'm ignoring this chunk because it looks identical to the
previous patch. Please re-submit additional changes seperately.
I'm ok with dropping __FILE__ usage.

> -#ifdef __LP64__
> +#ifdef CONFIG_64BIT

I'll replace __LP64__ with CONFIG_64BIT - don't need a patch for that.

> -               __raw_writel(((parent->end)>>16) | 0xffff0000,
> +               WRITE_U32(((parent->end)>>16) | 0xffff0000,
>                              &ioc->ioc_regs->io_io_high);

Please submit a seperate patch for these.

And if everything is working for you,
can you try with this change:
- #define CCIO_INLINE     /* inline */
+ #define CCIO_INLINE inline

I would expect some minor, measurable improvements in performance.


> and btw some stuff which could interesting sba:
> --- drivers/parisc/sba_iommu.c.orig     2005-05-20 09:07:26.000000000 +0200
> +++ drivers/parisc/sba_iommu.c  2005-05-20 09:33:23.000000000 +0200
> @@ -91,7 +91,7 @@
>  #define DBG_RES(x...)
>  #endif
> 
> -#if defined(__LP64__) && !defined(CONFIG_PDC_NARROW)
> +#if defined(CONFIG_64BIT) && !defined(CONFIG_PDC_NARROW)

Yeah, I can apply those as well.

thanks,
grant
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Subject: [parisc-linux] ncr53c8xx 64bit verbose boot info
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Joel Soete wrote:
> Hello James,
> 
> 
>>On Fri, 2005-05-20 at 19:16 +0200, Joel Soete wrote:
>>
>>>Btw I also have an external bootable disk narrow SE connected to the
> 
> s710
> 
>>>driver. Do you know if this one is 64bit capable?
>>
>>The lasi700 driver works fine in a 64 bit kernel, yes.
>>
> 
> Cool, I will so be able to test more (sorry not next week (i will be on training)
> but next one) ;-)
> 
> btw any idea as starting point of investigation to make ncr53c8xx driver
> 64bit capable?
> (a mail ref, ...)
> 

Ah I remember that ncr verbose (iirc 3) boot info collected:
32bit kernel:
[...]
zalon_probe: Zalon version 1, IRQ 67
ncr53c720-0: rev 0xf irq 67
ncr53c720-0: using memory mapped IO at virtual address 0xf1004800
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
ncr53c720-0: initial SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 00/00/20/00/80/00
ncr53c720-0: final   SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 03/80/20/00/88/00
ncr53c720-0: resetting, command processing suspended for 2 seconds
ncr53c720-0: restart (scsi reset).

scsi0 : ncr53c8xx-3.4.3g
ncr53c720-0: command processing resumed
   Vendor: SEAGATE   Model: ST39173WC         Rev: HP11
   Type:   Direct-Access                      ANSI SCSI revision: 02
  0:0:5:0: tagged command queue depth set to 8
  target0:0:5: Beginning Domain Validation
[...]

64bit:
[...]
zalon_probe: Zalon version 1, IRQ 66
ncr53c720-0: rev 0xf irq 66
ncr53c720-0: using memory mapped IO at virtual address 0xfffffffff1004800
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
ncr53c720-0: initial SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 00/00/20/00/80/00
ncr53c720-0: final   SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 03/80/20/00/88/00
ncr53c720-0: resetting, command processing suspended for 2 seconds
ncr53c720-0: restart (scsi reset).

scsi0 : ncr53c8xx-3.4.3g
ncr53c720-0: command processing resumed
    # till there all seems ok but after?
ncr53c720-0: resetting, command processing suspended for 2 seconds
ncr53c720-0: restart (scsi reset).
ncr53c720-0: command processing resumed
scsi: Device offlined - not ready after error recovery: host 0 channel 0 id 0 lu
n 0
ncr53c720-0: resetting, command processing suspended for 2 seconds
ncr53c720-0: restart (scsi reset).
ncr53c720-0: command processing resumed
scsi: Device offlined - not ready after error recovery: host 0 channel 0 id 5 lu
n 0
ncr53c720-0: resetting, command processing suspended for 2 seconds
...hung here

mmm strange in 32bit zalon_probe() used IRQ 67 while the 64bit used IRQ 66, is that important?

Thanks,
     Joel
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On Sat, May 21, 2005 at 02:46:56PM +0000, Joel Soete wrote:
> mmm strange in 32bit zalon_probe() used IRQ 67 while the 64bit used IRQ 66, 
> is that important?

No.  Interrupt numbers are now virtual and have no connection to how
interrupts are routed.  I'd expect them to be different between 32 and
64 bit kernels.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Sun, May 22, 2005 at 01:06:03PM +0000, Joel Soete wrote:
> linux-2.6.12-rc4-pa5-050522.tar               100%  207MB 881.1KB/s   04:00
...
> mmm the builtin nic of the c110 is only 10M/half duplex, I presume that's 
> why there was no improvement or may be another more relevant test?

Both actually.

If possible, connect the C110 with 100BT NIC to *any* other 100BT with
a cross-over cable or to switch. I think you need a card-mode DINO card
(EISA form factor) for C110 since it doesn't have PCI.
Then run pktgen (kernel psuedo-driver). This script needs some adjusting
but should get you started:
	http://iou.parisc-linux.org/ols2004/documents/pktgen-testing/pktgen-single

If you can plug in multiple 100BT (or gige NICs),
look at some of the other scripts in the same directory.

hth,
grant
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On Sun, May 22, 2005 at 10:10:41AM +0000, Joel Soete wrote:
> I would still like to update this comment in the head this file:
> [snip]
> **  Philipp Rumpf has a "Real Mode" driver for PCX-W machines at:
> **      CVSROOT=:pserver:anonymous@198.186.203.37:/cvsroot/linux-parisc
> **      cvs -z3 co linux/arch/parisc/kernel/dma-rm.c
> [snip]

Actually, I'm very tempted to just delete this comment.

> '198.186.203.37' doesn't seems to be a relevant address, so shouldn't we 
> better refer to cvs ccio-rm-dma.c?

If someone maintained it, Yes. But prumpf doesn't maintain it and
I'm not aware of anyone that actually uses ccio-rm-dma since it
*only* works on C360.  I'm completely un-interested in trying to support it.

grant
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On Mon, May 23, 2005 at 12:15:55PM +0100, Stuart Brady wrote:
> I've not had panics from ALSA Harmony in quite a while.

Oops -- it appears removing the module isn't very reliable, yet.

> The only things missing are simultaneous playback/capture,

I've no idea if this is even possible with ALSA.  (The problem is that
playback and capture must use the same sample rate and format.)

> some mixer settings

I.e. switches for headphones, line-out and internal speaker output,
which I've just committed.   OSS mixer apps (like aumix) won't see
these, but alsamixer works fine.  (Use "m" to toggle.)

ALSA drivers usually mute everything during initialisation.  Unless
anyone has a reason not to, I'm going to make Harmony mute the
headphones, line-out and internal speaker outputs, too.

> and some cleanups for the monitor channel (which most people
> won't care about).  I think it's preferable to the OSS driver, anyway.

OTOH, maybe not if it's built as a module...
-- 
Stuart Brady
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Hi,
	I am trying to install Debian on a HP-9000 D370. The booting works 
fine, I interacted a lot with the HP IPL and got it to boot from the CD 
and everything.
It boots, but is this very nice message at the bottom of my serial 
console terminal that says ``If this is the last message you see [...] 
check the FAQ and/or mailing lists. Well, I have and found no answer 
for my problem.
I did try a lot of different devices on the kernel booting line, 
parameter "console=" to be precise.

ttyS0, ttyS1, tty0, tty1, and other things that I saw other people tried.

Am I pointing to the right direction? or I have to change something 
else? What other values can I try?

thanks a lot.

dan///
-- 
Daniel Coletti
XTech (Soluciones Linux para Empresas) - http://www.xtech.com.ar
25 de Mayo 293 - 5to. 'B'
Buenos Aires, Argentina
_______________________________________________
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On Mon, May 23, 2005 at 06:10:21PM -0300, Daniel Coletti wrote:
> Hi,
> 	I am trying to install Debian on a HP-9000 D370. The booting works 
> fine, I interacted a lot with the HP IPL and got it to boot from the CD 
> and everything.
> It boots, but is this very nice message at the bottom of my serial 
> console terminal that says ``If this is the last message you see [...] 
> check the FAQ and/or mailing lists??. Well, I have and found no answer 
> for my problem.
> I did try a lot of different devices on the kernel booting line, 
> parameter "console=" to be precise.
> 
> ttyS0, ttyS1, tty0, tty1, and other things that I saw other people tried.

Shouldn't that be ttyB0 if it's using the mux driver?

> Am I pointing to the right direction? or I have to change something 
> else? What other values can I try?
> 
> thanks a lot.

Wasn't there a goofy card that needs to be removed from D-class
in order for parisc-linux to work properly?
Search the parisc-linux mail archive for "remove management card"
or variants of that.

grant

> 
> dan///
> -- 
> Daniel Coletti
> XTech (Soluciones Linux para Empresas) - http://www.xtech.com.ar
> 25 de Mayo 293 - 5to. 'B'
> Buenos Aires, Argentina
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
_______________________________________________
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hello,

> 
> On Mon, May 23, 2005 at 06:10:21PM -0300, Daniel Coletti wrote:
> > Hi,
> > 	I am trying to install Debian on a HP-9000 D370. The booting works 
> > fine, I interacted a lot with the HP IPL and got it to boot from the
CD
> 
> > and everything.
About a mount ago I also installed a d380 without pb too and it boot fine=

(up kernel for now)

> > It boots, but is this very nice message at the bottom of my serial 
> > console terminal that says ``If this is the last message you see [...=
]
> 
> > check the FAQ and/or mailing lists??. Well, I have and found no answe=
r
> 
> > for my problem.
> > I did try a lot of different devices on the kernel booting line, 
> > parameter "console=3D" to be precise.
> > 
> > ttyS0, ttyS1, tty0, tty1, and other things that I saw other people tr=
ied.
> 
> Shouldn't that be ttyB0 if it's using the mux driver?
Afaik for k models?

> 
> > Am I pointing to the right direction? or I have to change something 
> > else? What other values can I try?
> > 
I would like to ask if your serial console it's connected to a buitin ser=
ial
port?
On D model it exists a additional 'remote access card' (a serial console
too) which I had to remove because broken but I am not sure it's supporte=
d?
It was also recommened to remove all other additonal card to test first ;=
-)

hth,
    Joel


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Grant Grundler wrote:
> On Mon, May 23, 2005 at 06:10:21PM -0300, Daniel Coletti wrote:
> > Hi,
> > Am I pointing to the right direction? or I have to change
something=20
> > else? What other values can I try?
> >=20
> > thanks a lot.
>=20
> Wasn't there a goofy card that needs to be removed from D-class
> in order for parisc-linux to work properly?
> Search the parisc-linux mail archive for "remove management card"
> or variants of that.

Actually no:

See
http://www.pateam.org/parisc-linux-boot/PA-RISC-Linux-Boot-HOWTO/hardw
are.html

"D class works unless you have a Remote Management Card installed.
Even then, it still kind of works, it's just that ttyS0 gets assigned
to the second serial port and you have to switch cables around."

HTH

T-Bone, still planning a release of the updated howto ;)
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cbeerse@gmail.com wrote:
> Daniel Coletti wrote:
>> Hi,
>>     I am trying to install Debian on a HP-9000 D370. The booting works 
>> fine, I interacted a lot with the HP IPL and got it to boot from the 
>> CD and everything.
>> It boots, but is this very nice message at the bottom of my serial 
>> console terminal that says ``If this is the last message you see [...] 
>> check the FAQ and/or mailing lists. Well, I have and found no answer 
>> for my problem.
>> I did try a lot of different devices on the kernel booting line, 
>> parameter "console=" to be precise.
>>
>> ttyS0, ttyS1, tty0, tty1, and other things that I saw other people tried.
> 
> You should not change the console-setting to the kernel, you should 
> switch cables from serial one to serial 2 at the moment you see the 
> message. As far as I recall, you have some time to do so before you 
> start missing boot-messages.

thanks, that was it ... I did have to change the console= parameter
because it defaults to ttyB0 and does not work (ttyS0 does in the Serial
port no. 2).
Now I have problems with term emulation (I have a hp 700/96 terminal),
nothing a serial cable with minicom can't handle.

thanks again,

daniel//

> 
> If you remove the support-board, the console will not be moved from 
> serial 1 to serial 2. Since the board is (afaik) not supported (what 
> does it do at all?) there is no harm in removing it.
> 
>>
>> Am I pointing to the right direction? or I have to change something 
>> else? What other values can I try?
>>
> 
> none at all.
> 
> 
> Success,
> 
> CBee
> 


-- 
Daniel Coletti
XTech (Soluciones Linux para Empresas) - http://www.xtech.com.ar
25 de Mayo 293 - 5to. 'B'
Buenos Aires, Argentina

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[snip]
> > You should not change the console-setting to the kernel, you should 
> > switch cables from serial one to serial 2 at the moment you see the 
> > message. As far as I recall, you have some time to do so before you 
> > start missing boot-messages.
> 
> thanks, that was it ... I did have to change the console=3D parameter
> because it defaults to ttyB0 and does not work (ttyS0 does in the Seria=
l
> port no. 2).
> Now I have problems with term emulation (I have a hp 700/96 terminal),
> nothing a serial cable with minicom can't handle.
> 
mmm (i don't have such device nor user guide near hand so I couldn't expl=
ain
how) but you can change the emulation of your physical terminal (hp 700/9=
6)
to vt100 or vt102 ;-)

hth,
    Joel


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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] sara make panicing 2.6.12-rc4-pa5 running on c110
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Hello all,

This week I followed a cursus on security admin and would like to test a vulnerabilty scanner like sara against my c110 running a 
2.6.12-rc4-pa5...

Unfortunately, it panics:
device eth0 entered promiscuous mode
eth0: command unit timed out, status resetting.


Backtrace:
  [<10144fb0>] disable_irq_nosync+0x58/0x5c
  [<10144fd4>] disable_irq+0x20/0x38
  [<1026c9fc>] init_i596_mem+0x40/0x71c
  [<1026ee38>] i596_start_xmit+0x200/0x27c
  [<102c8cac>] qdisc_restart+0x74/0x1f8
  [<102bc904>] dev_queue_xmit+0x1a4/0x224
  [<102d40d4>] ip_finish_output+0xc4/0x240
  [<102d616c>] ip_push_pending_frames+0x2dc/0x45c
  [<102d6654>] ip_send_reply+0x1f4/0x254
  [<102eb24c>] tcp_v4_send_reset+0xfc/0x15c
  [<102ec6b0>] tcp_v4_rcv+0x320/0x7ac
  [<102d11d0>] ip_local_deliver+0xb8/0x1b8
  [<102d1670>] ip_rcv+0x3a0/0x4a8
  [<102bce40>] netif_receive_skb+0x108/0x1f4
  [<102bcfd0>] process_backlog+0xa4/0x18c
  [<102bd158>] net_rx_action+0xa0/0x16c


High Priority Machine Check (HPMC): Code=1 regs=103b1080 (Addr=00000000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001110 Not tainted
r00-03  00000000 10402000 102187d4 0000000f
r04-07  10be3b00 2ffc7000 2ffc7320 2ffbb400
r08-11  2ffbb400 0000003c 103cf010 103cf010
r12-15  00000000 0000004d 00000001 00000000
r16-19  10404140 f00000ac f00000a4 ffd00004
r20-23  a0400000 10402240 102187ac 00000000
r24-27  00000020 10be3b3c 00000012 103ae010
r28-31  00000017 00000000 10404c00 10144fb0
sr0-3   00000000 00000000 00000000 00000f90
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 102187e8 102187ec
  IIR: d680141f    ISR: 00000000  IOR: 5fbc1a0c
  CPU:        0   CR30: 10404000 CR31: 10408000
  ORIG_R28: 00000000
  IAOQ[0]: gsc_asic_disable_irq+0x3c/0x50
  IAOQ[1]: gsc_asic_disable_irq+0x40/0x50
  RP(r2): gsc_asic_disable_irq+0x28/0x50
Kernel panic - not syncing: High Priority Machine Check (HPMC)

It seems to be du to the reset but not sure.

Any idea?

Thanks,
	Joel

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Is there a Java 1.4 sdk/jre available for linux on the parisc arch?  I'm 
guessing no, but it doesn't hurt to ask...

If not, is there any porting effort underway?  If not, would it be 
possible for someone (possibly myself) to undertake such a task?  What is 
involved in getting a port started?

I apologize for cross-posting to the parisc-linux list also, but perhaps 
someone there may have some additional insight.  It is not really a 
debian issue, so I did not post to debian-hppa like it says for user space 
issues.  I was a member of the parisc-linux list, but unsubscribed some 
time ago (my box has been so stable I haven't needed it!)


Thanks

-- 
Too much is just enough.
		-- Mark Twain, on whiskey
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: [parisc-linux] c3k panics
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I can panic my c3750 very consistently running the binutils testsuite
(cvs source as of 20050526).  I've tried many of the default kernels
to see if I could isolate when the problem was introduced.  The last
kernel that seems unaffected is 2.6.8.1-pa11.  The problem is present
in 2.6.12-rc5-pa0 and 2.6.11-pa4.

The sad part is that panic is also broken and no error messages are
produced when the fault occurs.  Before adding panic=180 to the command
line, pressing TOC just yielded a register dump for panic itself.  That's
not too useful.  In my testing, the last working panic dump was with
2.6.9-pa1 which faulted with a HPMC during boot.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] c3k panics
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> I can panic my c3750 very consistently running the binutils testsuite
> (cvs source as of 20050526).  I've tried many of the default kernels
> to see if I could isolate when the problem was introduced.  The last
> kernel that seems unaffected is 2.6.8.1-pa11.  The problem is present
> in 2.6.12-rc5-pa0 and 2.6.11-pa4.

Hmmm, just noticed that as-new may be using all of the machines memory
and swap space.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] c3k panics
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John David Anglin wrote:
> I can panic my c3750 very consistently running the binutils testsuite
> (cvs source as of 20050526).
mmm the experimental debian bintuils-2.16 seems to works fine for me (kernel 2.6.8.1-pa11 32bit on a b180).

> I've tried many of the default kernels
> to see if I could isolate when the problem was introduced.  The last
> kernel that seems unaffected is 2.6.8.1-pa11.  The problem is present
> in 2.6.12-rc5-pa0 and 2.6.11-pa4.
> 
I observe the same differences of behaviour.

Btw, that looks like the pb I encountered many times when I tried CONFIG_DEBUG_SLAB=y?

As I tried to explain in detail (<http://lists.parisc-linux.org/pipermail/parisc-linux/2005-May/026493.html>) there is a big pb with 
this option. Unfortunately, I am not a C programer and so lake of deep knowledges to suggest a proper fix :-(

If it's your case too, can you try without this option.
(or give a try to this patch attempt: <http://lists.parisc-linux.org/pipermail/parisc-linux/2005-May/026474.html>.
it's not perfect but it helps me anyway :-) ).


> The sad part is that panic is also broken and no error messages are
> produced when the fault occurs.  Before adding panic=180 to the command
> line, pressing TOC just yielded a register dump for panic itself.  That's
> not too useful.  In my testing, the last working panic dump was with
> 2.6.9-pa1 which faulted with a HPMC during boot.
> 

The same for me, it seems that the pb appears during 2.6.9 developement;
as far as I can test, it seems that the pb appears between 2.6.9-rc2-pa2 and pa5;
For my part I already tried to revert only this pa5 (just to be sure) 
<http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2004-September/034576.html>
but it doesn't help :-)

So still have to revert few thing (but it would be hard like fixup stuff) to try to isolate the pb?

Ah still a question: is it the same pb for 32bit and 64bit twin kernel?

Thanks,
	Joel
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Subject: Re: [parisc-linux] c3k panics
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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Hello Randolph,

Ah that's a week that I reading code, cvs patches archives, ... and seems that something is not equal everywhere but didn't reach to 
point out since I can put together:

arch/parisc/kernel/unaligned.c
[snip]
#define FIXUP_BRANCH(lbl) \
         "\tldil L%%" #lbl ", %%r1\n"                    \
         "\tldo R%%" #lbl "(%%r1), %%r1\n"               \
         "\tbv,n %%r0(%%r1)\n"
[snip]

(since this patche: <http://cvs.parisc-linux.org/linux-2.6/arch/parisc/kernel/unaligned.c?r1=1.12&r2=1.13>
and this comment:
Revision 1.13  - (view) (download) (as text) (annotate) - [select for diffs]
Tue Sep 21 19:50:55 2004 UTC (8 months ago) by tausq
Branch: MAIN
CVS Tags: LINUS_2_6_9_RC3_MERGED, LINUS_2_6_9_RC3_PRE
Branch point for: LINUS_2_6_9_RC3
Changes since 1.12: +2 -3 lines
Diff to previous 1.12

<http://lists.parisc-linux.org/pipermail/parisc-linux/2004-September/024799.html>)

otc in arch/parisc/kernel/syscall.S
[snip]
#ifndef CONFIG_64BIT
         .macro fixup_branch,lbl
         b           \lbl
         .endm
#else
         .macro fixup_branch,lbl
         ldil        L%\lbl, %r1
         ldo         R%\lbl(%r1), %r1
         bv,n        %r0(%r1)
         .endm
#endif
[snip]

(Just for the record e.g. 64bit kernel works fine but not it's twin 32bit on b2k)

Thanks in advance for your relevant advise,
	Joel

Joel Soete wrote:
> 
> 
> John David Anglin wrote:
> 
>> I can panic my c3750 very consistently running the binutils testsuite
>> (cvs source as of 20050526).
> 
> mmm the experimental debian bintuils-2.16 seems to works fine for me 
> (kernel 2.6.8.1-pa11 32bit on a b180).
> 
>> I've tried many of the default kernels
>> to see if I could isolate when the problem was introduced.  The last
>> kernel that seems unaffected is 2.6.8.1-pa11.  The problem is present
>> in 2.6.12-rc5-pa0 and 2.6.11-pa4.
>>
> I observe the same differences of behaviour.
> 
> Btw, that looks like the pb I encountered many times when I tried 
> CONFIG_DEBUG_SLAB=y?
> 
> As I tried to explain in detail 
> (<http://lists.parisc-linux.org/pipermail/parisc-linux/2005-May/026493.html>) 
> there is a big pb with this option. Unfortunately, I am not a C 
> programer and so lake of deep knowledges to suggest a proper fix :-(
> 
> If it's your case too, can you try without this option.
> (or give a try to this patch attempt: 
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2005-May/026474.html>. 
> 
> it's not perfect but it helps me anyway :-) ).
> 
> 
>> The sad part is that panic is also broken and no error messages are
>> produced when the fault occurs.  Before adding panic=180 to the command
>> line, pressing TOC just yielded a register dump for panic itself.  That's
>> not too useful.  In my testing, the last working panic dump was with
>> 2.6.9-pa1 which faulted with a HPMC during boot.
>>
> 
> The same for me, it seems that the pb appears during 2.6.9 developement;
> as far as I can test, it seems that the pb appears between 2.6.9-rc2-pa2 
> and pa5;
> For my part I already tried to revert only this pa5 (just to be sure) 
> <http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2004-September/034576.html> 
> 
> but it doesn't help :-)
> 
> So still have to revert few thing (but it would be hard like fixup 
> stuff) to try to isolate the pb?
> 
> Ah still a question: is it the same pb for 32bit and 64bit twin kernel?
> 
> Thanks,
>     Joel
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
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> John David Anglin wrote:
> > I can panic my c3750 very consistently running the binutils testsuite
> > (cvs source as of 20050526).
> mmm the experimental debian bintuils-2.16 seems to works fine for me (kernel 2.6.8.1-pa11 32bit on a b180).

I'm 95% certain that it's this assembler file that causes the crash:

	.data

foo:
	.block
bar:
        .block 0x3fffffff
com:

This causes the allocation of ~ 1GB of memory by the assembler.  My c3k
has 1GB of memory but the swap is only 512MB.  There aren't any limits
on this allocation (ulimit -a).  The assembler is using obstacks which
I believe use malloc for the allocation.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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>  > /usr/lib/crtn.o  -Wl,-O1 -Wl,-soname -Wl,libgcj.so.6 -o .libs/libgcj.so.6.0.0
>  > collect2: ld terminated with signal 15 [Terminated]

> Obviously this was solved by simply adding some more swap space (without panic):

No, I've not encountered this but the libgcj link is a large one, so running
out of swap space isn't unexpected.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, May 28, 2005 at 09:50:38PM -0400, John David Anglin wrote:
> > I can panic my c3750 very consistently running the binutils testsuite
> > (cvs source as of 20050526).  I've tried many of the default kernels
> > to see if I could isolate when the problem was introduced.  The last
> > kernel that seems unaffected is 2.6.8.1-pa11.  The problem is present
> > in 2.6.12-rc5-pa0 and 2.6.11-pa4.
> 
> Hmmm, just noticed that as-new may be using all of the machines memory
> and swap space.

Neither of these situations should kill the kernel.
Why doesn't OOM kill the process?

c.

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> On Sat, May 28, 2005 at 09:50:38PM -0400, John David Anglin wrote:
> > > I can panic my c3750 very consistently running the binutils testsuite
> > > (cvs source as of 20050526).  I've tried many of the default kernels
> > > to see if I could isolate when the problem was introduced.  The last
> > > kernel that seems unaffected is 2.6.8.1-pa11.  The problem is present
> > > in 2.6.12-rc5-pa0 and 2.6.11-pa4.
> > 
> > Hmmm, just noticed that as-new may be using all of the machines memory
> > and swap space.
> 
> Neither of these situations should kill the kernel.
> Why doesn't OOM kill the process?

I agree but we don't get any error messages, so it's hard to tell.

I can avoid the problem with ulimit -v.  However, this doesn't fix
all the stability problems.  I've had two kernel hangs since.  r2
is pointing to the return of the call to getname near the beginning
of sys_rmdir.  The IIA Offset addresses in the TOC dump point into
the fault_vector_20 jump table.  One was here:

	b,l <intr_save>,r0
==>	ldi 9, r8

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> #ifndef CONFIG_64BIT
>         .macro fixup_branch,lbl
>         b           \lbl
>         .endm
> #else
>         .macro fixup_branch,lbl
>         ldil        L%\lbl, %r1
>         ldo         R%\lbl(%r1), %r1
>         bv,n        %r0(%r1)
>         .endm
> #endif

These two do the same thing. The 32-bit version is simpler because we
can rely on the linker to do fixups for us if the branch is too far
away. The 64-bit version always uses a long branch sequence to avoid
stub issues with the 64-bit toolchain. In the C code I have simply not
done this (micro-)optimization.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Hello Randolph,

>
> > #ifndef CONFIG_64BIT
> >         .macro fixup_branch,lbl
> >         b           \lbl
> >         .endm
> > #else
> >         .macro fixup_branch,lbl
> >         ldil        L%\lbl, %r1
> >         ldo         R%\lbl(%r1), %r1
> >         bv,n        %r0(%r1)
> >         .endm
> > #endif
>
> These two do the same thing. The 32-bit version is simpler because we
> can rely on the linker to do fixups for us if the branch is too far
> away. The 64-bit version always uses a long branch sequence to avoid
> stub issues with the 64-bit toolchain. In the C code I have simply not
> done this (micro-)optimization.
>
Ok clear but still confused why 32bit branch doesn't nullify the insn
in delay slot like did 64bit?

btw one more thing confusing me: the third fixup_branch macro definition
in lusercopy.S:
[snip]
         .macro fixup_branch,lbl
         ldil        L%\lbl, %r1
         ldo         R%\lbl(%r1), %r1
         bv          %r0(%r1)
         .endm

This time just bv not bv,n ?
I presume that's needed because here that's user space but couldn't we ha=
ve
2 macro name (e.g a k_fixup_br, us_fixup_br)  to avoid this confusion?

Thanks again,
    Joel


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> Ok clear but still confused why 32bit branch doesn't nullify the insn
> in delay slot like did 64bit?

it's a bug, but fortunately that copy of the fixup_branch macro (in
syscall.S) isn't actually used ;-) I'll remove it.

> btw one more thing confusing me: the third fixup_branch macro definition
> in lusercopy.S:
> [snip]
>          .macro fixup_branch,lbl
>          ldil        L%\lbl, %r1
>          ldo         R%\lbl(%r1), %r1
>          bv          %r0(%r1)
>          .endm
> 
> This time just bv not bv,n ?

Yes, if you look at where the macro is used you will see that there is
an instruction in the delay slot for the branch that should be executed.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: [parisc-linux] Re: Matrox Mystique video card caused Kernel Panic
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On Tue, May 31, 2005 at 11:09:05AM +0800, J. L. Lee wrote:
> I am a novice to Linux, especially the Debian variant and the HP 
> workstations. I am also not a programmer so afraid you have to be patient 
> with me.

no problem.
Please keep the parisc-linux list cc'd so the mail gets archived.

> You mentioned "The symptom is consistent with derefencing an address that's 
> not ioremapped. But it looks like ioremapped is being called in 
> initMatrox2(). You want to add printk's to make sure that's happening like 
> we expect."
> 
> I don't understand what you mean but if you can direct me to where I could 
> change the coding in the source code I will give it a try and let you know 
> the result.

What I meant was, in drivers/video/matrox/matroxfb_base.h
add a printk to mga_ioremap() and to mga_iounmap() so we know
what the virtual and physical addresses are and when to expect
the mappings to be valid.
Sorry, I don't have time to cook up a proper patch.

Please also build with CONFIG_FB_MATROX=m (as a module) so you can first:
	lspci -v
	cat /proc/iomem

then "modprobe maxtroxfb" once you are ready to crash the machine.


> ps. Yes, I have referred to the Graphics How-To. That is why I chose the 
> Matrox video card. I have S3 Virge too but there is no configurable S3 
> driver in the kernel configuration file.

Ok. If someone can tell me S3 Virge is compatible with another matrox
cards, I'd be happy to add it to the How-To.

hth,
grant
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On Tue, May 31, 2005 at 11:09:05AM +0800, J. L. Lee wrote:
> I have S3 Virge too but there is no configurable S3 driver in the
> kernel configuration file.

virgefb seems to be for for Amigas only.  It might be worth trying the X
driver (which works for me on x86).
-- 
Stuart Brady
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> 
> 
> > Ok clear but still confused why 32bit branch doesn't nullify the insn=

> > in delay slot like did 64bit?
> 
> it's a bug, but fortunately that copy of the fixup_branch macro (in
> syscall.S) isn't actually used ;-) I'll remove it.
> 
mmm, it seems that I am ongoing to become blind (to miss that ?)
ah no this the night (no idea where stand this dmaned bug) but I was just=

blind by a pocket torch thinking it would be a star :_(
 
> > btw one more thing confusing me: the third fixup_branch macro definit=
ion
> > in lusercopy.S:
> > [snip]
> >          .macro fixup_branch,lbl
> >          ldil        L%\lbl, %r1
> >          ldo         R%\lbl(%r1), %r1
> >          bv          %r0(%r1)
> >          .endm
> > 
> > This time just bv not bv,n ?
> 
> Yes, if you look at where the macro is used you will see that there is
> an instruction in the delay slot for the branch that should be executed=
.
> 
Cool :-)

Thanks,
    Joel


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> > > Ok clear but still confused why 32bit branch doesn't nullify the insn
> > > in delay slot like did 64bit?
> > 
> > it's a bug, but fortunately that copy of the fixup_branch macro (in
> > syscall.S) isn't actually used ;-) I'll remove it.
> > 
> mmm, it seems that I am ongoing to become blind (to miss that ?)
> ah no this the night (no idea where stand this dmaned bug) but I was just
> blind by a pocket torch thinking it would be a star :_(

I believe that there's likely more than one bug.  After working around
the memory management bug, I tried a number of gcc builds.  Two crashes
occurred as previously reported.  I also had a third crash.  In this
one, the TOC IIA Offset value pointed into "userspace".  These all
occurred with only a few hours of running time.

I then switched from vmlinux-2.6.11-pa4-c3000_defconfig to
vmlinux-2.6.8.1-pa11-c3000_defconfig.  This kernel seems ok.  It's
survived one binutils and three full gcc builds.  However, there are
seven fails in the libstdc++ testsuite that don't occur with 2.6.11.
On the otherhand, I'm seeing a few Java processes not terminate with
2.6.11-pa4.  This problem doesn't seem to be present in 2.6.8.1-pa11
and Grant's 64-bit version of 2.6.11-pa4 on gsyprf11.

I'm going to try a few more kernels to see if it's possible to isolate
the change that introduced the problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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>
> I believe that there's likely more than one bug.  After working around
> the memory management bug, I tried a number of gcc builds.  Two crashes=

> occurred as previously reported.  I also had a third crash.  In this
> one, the TOC IIA Offset value pointed into "userspace".  These all
> occurred with only a few hours of running time.
>
Sorry but I don't remember if I already mentioned some more results about=

test getting rid of cffc():
I reach to boot successfully this kernel which didn't panicing any more;
anyway after enough untar, rm the corresponding ext3 fs was switched to r=
ead-only
mode (corruption)?

> I then switched from vmlinux-2.6.11-pa4-c3000_defconfig to
> vmlinux-2.6.8.1-pa11-c3000_defconfig.  This kernel seems ok.  It's
> survived one binutils and three full gcc builds.  However, there are
> seven fails in the libstdc++ testsuite that don't occur with 2.6.11.
> On the otherhand, I'm seeing a few Java processes not terminate with
> 2.6.11-pa4.  This problem doesn't seem to be present in 2.6.8.1-pa11
> and Grant's 64-bit version of 2.6.11-pa4 on gsyprf11.
>
imho and according to my numerous test (that took me more time on b180) 2=
.6.8.1-pa11
(+some Kyle backport) seems to be rock solid, and iirc early 2.6.10 alrea=
dy
presented the pb (2.6.9 seems also?)

> I'm going to try a few more kernels to see if it's possible to isolate
> the change that introduced the problem.
>
Thanks (that's too much time I am working in blind on this pb, I very nee=
d
a breack)

Joel


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[snip]
> > 
> > The same for me, it seems that the pb appears during 2.6.9 developeme=
nt;
> > as far as I can test, it seems that the pb appears between 2.6.9-rc2-=
pa2
> > and pa5;
> > For my part I already tried to revert only this pa5 (just to be sure)=


> > <http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2004-Septem=
ber/034576.html>
...
> > 
> > So still have to revert few thing (but it would be hard like fixup 
> > stuff) to try to isolate the pb?
> > 
Well again for the record, I also reverted this (always to be shure that
this is not becuase this new fixup_branch).
but the kernel alway failed the same way i.e.:
>>IASQ: 00000000 00000000 IAOQ: 1014c10c 1014c110
>> IIR: 6b800020    ISR: 00000000  IOR: 84de0906
>> CPU:        0   CR30: 15d98000 CR31: 10450000
>> ORIG_R28: 1039a000
>> IAOQ[0]: alloc_slabmgmt+0x30/0x6c
>> IAOQ[1]: alloc_slabmgmt+0x34/0x6c
>> RP(r2): cache_grow+0xd4/0x1a8
>>Kernel panic - not syncing: Kernel Fault

I also try to re-use compile option: "cflags-y        +=3D -mdisable-fpre=
gs"
but this time the system hang without any panic (nothing in pimfo after t=
he
forced reboot) nor backtrace?
so helpless :-(

Thanks,
    Joel


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> 
> On Tue, May 31, 2005 at 11:09:05AM +0800, J. L. Lee wrote:
> > I have S3 Virge too but there is no configurable S3 driver in the
> > kernel configuration file.
> 
> virgefb seems to be for for Amigas only.  It might be worth trying the
X
> driver (which works for me on x86).
> -- 

Just for the record, I noticed that 2.6.11.11 patch contained:
[snip]
    [PATCH] Fix matroxfb on big-endian hardware
[snip]

Is it already part of 2.6.12-rc5?

Joel


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Hello James,
> 
> On Fri, 2005-05-20 at 19:16 +0200, Joel Soete wrote:
> > Btw I also have an external bootable disk narrow SE connected to the
s710
> > driver. Do you know if this one is 64bit capable?
> 
> The lasi700 driver works fine in a 64 bit kernel, yes.
> 
You have right I just reinstall an external disk on lasi700 (53c700) cont=
roler
and boot a 64bit kernel (with ncr53c8x as module) :-)

BUT it is horribly slow:
    o it takes about a 1.5 h to boot (about 5 min for its twin 32bit)
    o a ssh connection takes about a min too (only some seconds for 32bit=

kernel)

and fwiw top:
top - 13:49:13 up  1:02,  1 user,  load average: 1.98, 3.13, 3.64
Tasks:  39 total,   4 running,  35 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.0% us,  0.0% sy,  0.0% ni, 100.0% id,  0.0% wa,  0.0% hi,  0.0=
%
si
Mem:    252696k total,    47148k used,   205548k free,     3192k buffers
Swap:   131928k total,        0k used,   131928k free,    27104k cached
[...]

just show an 100% idle system?

Another known issue for this kind of d model?

Any idea?

Thanks,
    Joel

btw: I read this strange messages when it init raid5
[snip]
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     : -923425.-184 MB/sec
   8regs_prefetch: 1824022.112 MB/sec
   32regs    : 328350.816 MB/sec
   32regs_prefetch: -1188109.-184 MB/sec
raid5: using function: 8regs_prefetch (1824022.112 MB/sec)
md: md driver 0.90.1 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27
[snip]

while the 32bit showed me more relevant values:
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :   574.400 MB/sec
   8regs_prefetch:   387.600 MB/sec
   32regs    :   447.600 MB/sec
   32regs_prefetch:   345.200 MB/sec
raid5: using function: 8regs (574.400 MB/sec)
md: md driver 0.90.1 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27

obviously I remove also raid5 support but it doesn't help :-(



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Subject: [parisc-linux] D380 attempt to boot in 64bits [Was: ccio-dma 64bit
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Hello all,

> >
> > On Fri, 2005-05-20 at 19:16 +0200, Joel Soete wrote:
> > > Btw I also have an external bootable disk narrow SE connected to th=
e
> s710
> > > driver. Do you know if this one is 64bit capable?
> >
> > The lasi700 driver works fine in a 64 bit kernel, yes.
> >
> You have right I just reinstall an external disk on lasi700 (53c700) co=
ntroler
> and boot a 64bit kernel (with ncr53c8x as module) :-)
> 
> BUT it is horribly slow:
>     o it takes about a 1.5 h to boot (about 5 min for its twin 32bit)
>     o a ssh connection takes about a min too (only some seconds for 32b=
it
> kernel)
> 
> and fwiw top:
> top - 13:49:13 up  1:02,  1 user,  load average: 1.98, 3.13, 3.64
> Tasks:  39 total,   4 running,  35 sleeping,   0 stopped,   0 zombie
> Cpu(s):  0.0% us,  0.0% sy,  0.0% ni, 100.0% id,  0.0% wa,  0.0% hi,  0=
.0%
> si
> Mem:    252696k total,    47148k used,   205548k free,     3192k buffer=
s
> Swap:   131928k total,        0k used,   131928k free,    27104k cached=

> [...]
> 
> just show an 100% idle system?
> 
> Another known issue for this kind of d model?
> 
> Any idea?
> 
> Thanks,
>     Joel
> 
> btw: I read this strange messages when it init raid5
> [snip]
> md: linear personality registered as nr 1
> md: raid0 personality registered as nr 2
> md: raid1 personality registered as nr 3
> md: raid5 personality registered as nr 4
> raid5: measuring checksumming speed
>    8regs     : -923425.-184 MB/sec
>    8regs_prefetch: 1824022.112 MB/sec
>    32regs    : 328350.816 MB/sec
>    32regs_prefetch: -1188109.-184 MB/sec
> raid5: using function: 8regs_prefetch (1824022.112 MB/sec)
> md: md driver 0.90.1 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27
> [snip]
> 
> while the 32bit showed me more relevant values:
> md: linear personality registered as nr 1
> md: raid0 personality registered as nr 2
> md: raid1 personality registered as nr 3
> md: raid5 personality registered as nr 4
> raid5: measuring checksumming speed
>    8regs     :   574.400 MB/sec
>    8regs_prefetch:   387.600 MB/sec
>    32regs    :   447.600 MB/sec
>    32regs_prefetch:   345.200 MB/sec
> raid5: using function: 8regs (574.400 MB/sec)
> md: md driver 0.90.1 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27
> 
> obviously I remove also raid5 support but it doesn't help :-(
> 
Would I ever have a chance to boot it 64bits?

Here are some additional strage stuff:
[snip]
CPU(s): 1 x PA8000 (PCX-U) at 180.000000 MHz
Whole cache flush 378186 cycles, flushing 274443696 bytes 107618208 cycle=
s
Setting cache flush threshold to 0xeb780 (1 CPUs online)
[snip]
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xffffffffffd07000, IRQ 17
eth0: 82596 at 0xffffffffffd07000, 00 00 00 00 08 00 IRQ 17.
[snip]

while the 32bit kernel said:
[snip]
Setting cache flush threshold to 20 (1 CPUs online)
[snip]
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xffd07000, IRQ 17javascript:OnPhoenixSend();
eth0: 82596 at 0xffd07000, 08 00 09 D2 89 15 IRQ 17.
[snip]

Questions are:
    o could it be that 'cache flush threshold' value was the reason why t=
he
system became so slow?
       (couldn't it be why ncr doesn't start correctly?
        s=3D2 sec in top actualy means about 30sec between 2 changes in d=
isplay
:-( )
    o Is nic 82596 is not 64bit ready? (apparently didn't report the righ=
t
MAC Address?)

Thanks in advance for help,
    Joel


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Hi,
	I tried to install Debian on a HP9000/800/N4000-36 and the kernel 
doesn't work. As I can read in this[0] page, somebody did make it work 
but on a -55 model (not -36 like the one I tried with).
http://hwdb.parisc-linux.org/view.php?type=machine&name=N4000-55

Since I used the HP console I don't have the full output, but the 
startup seams to work fine (with the default kernel params) until it 
starts writing:
Kernel bug at lba_pci.c:1285!
Kernel bug at lba_pci.c:1250!
lba range[2]: ignoring GMMIO (0x-a-lot-of-hexa-numbers)
[....]
WARNING! Stack pointer and cr30 do not correspond
Dumping virtual address stack instead
Dumping from 0x000000005fd40000 to 0x000000005fa44b00

and it prints lots and lots of hexa numbers and sais things like "PSW: 
NNNNN Not tainted nnnnNNNnnNN"

I tried with debian-woody official ISO (downloaded from debian), is 
there something special that I have to do with the HP N-class?
Is there another kernel I should try out?

thanks a lot.

daniel///
-- 
Daniel Coletti
XTech (Soluciones Linux para Empresas) - http://www.xtech.com.ar
25 de Mayo 293 - 5to. 'B'
Buenos Aires, Argentina
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Daniel Coletti wrote:
> Hi,
>     I tried to install Debian on a HP9000/800/N4000-36 and the kernel 
> doesn't work. As I can read in this[0] page, somebody did make it work 
> but on a -55 model (not -36 like the one I tried with).
> http://hwdb.parisc-linux.org/view.php?type=machine&name=N4000-55
> 
Afaik, the only diff is the cpu clock?

> Since I used the HP console I don't have the full output, but the 
> startup seams to work fine (with the default kernel params) until it 
> starts writing:
> Kernel bug at lba_pci.c:1285!
> Kernel bug at lba_pci.c:1250!
> lba range[2]: ignoring GMMIO (0x-a-lot-of-hexa-numbers)
> [....]
> WARNING! Stack pointer and cr30 do not correspond
> Dumping virtual address stack instead
> Dumping from 0x000000005fd40000 to 0x000000005fa44b00
> 
> and it prints lots and lots of hexa numbers and sais things like "PSW: 
> NNNNN Not tainted nnnnNNNnnNN"
> 
> I tried with debian-woody official ISO (downloaded from debian), is 
> there something special that I have to do with the HP N-class?
As far as remember, woody comes with kernel 2.4?
Unfortunately, iirc the pb you encountered is a well known _smp_ kernel bug never fixed in 2.4 but well it 2.6 :-)

> Is there another kernel I should try out?> 
First try to install a up kernel (for the A, L and N Class is must be a 64bit).
Then you would be able to upgrade to sarge and install a 2.6 kernel (may be try first a up kernel then try the smp one)

Or you could reinstall your system with a recent netinstall iso cd:
<http://cdimage.debian.org/pub/cdimage-testing/sarge_d-i/hppa/>

Hth,
	Joel
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On Fri, Jun 03, 2005 at 04:36:13PM -0300, Daniel Coletti wrote:
> Since I used the HP console I don't have the full output,

Daniel,
can you try to capture the full output?
And then post it to parisc-linux@lists.parisc-linux.org?

I need to know which kernel you are running.

Here are more tips on how to report kernel bugs:
	http://www.parisc-linux.org/faq/kernelbug-howto.html


> Kernel bug at lba_pci.c:1285!
> Kernel bug at lba_pci.c:1250!
> lba range[2]: ignoring GMMIO (0x-a-lot-of-hexa-numbers)

This won't prevent the box from booting.

> I tried with debian-woody official ISO (downloaded from debian), is 
> there something special that I have to do with the HP N-class?
> Is there another kernel I should try out?

Yes, probably. Joel should be able to point at one on
http://cvs.parisc-linux.org/download/linux-2.6 that
will work for you.

Getting it on the machine is another issue.
See the other thread on debian-hppa mailing list for ideas
on how to replace a kernel on a non-booting machine.

grant

> 
> thanks a lot.
> 
> daniel///
> -- 
> Daniel Coletti
> XTech (Soluciones Linux para Empresas) - http://www.xtech.com.ar
> 25 de Mayo 293 - 5to. 'B'
> Buenos Aires, Argentina
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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Grant Grundler wrote:
> On Fri, Jun 03, 2005 at 04:36:13PM -0300, Daniel Coletti wrote:
> 
>>Since I used the HP console I don't have the full output,
> 
> 
[...]
> 
> Yes, probably. Joel should be able to point at one on
> http://cvs.parisc-linux.org/download/linux-2.6 that
> will work for you.
> 
Sorry, my colleague need it to test some custom gloden image (Ignite -> cd).
So my latest test (as reported <http://lists.parisc-linux.org/pipermail/parisc-linux/2005-April/026254.html>) seems to be a bit 
outdated and spoken about 2.6.11-pa?
btw which kernel is in used on nicol for the moment?

> Getting it on the machine is another issue.
> See the other thread on debian-hppa mailing list for ideas
> on how to replace a kernel on a non-booting machine.
> 
The main tips is to boot from the install cd and scroll the install menu to start a shell command ;-)

hth,
	Joel
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Subject: Some other cleanup [Was: [parisc-linux] c3k panics]
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Xref: news.gmane.org gmane.linux.ports.parisc:22762

Hello Randolph,


Randolph Chung wrote:
>>Ok clear but still confused why 32bit branch doesn't nullify the insn
>>in delay slot like did 64bit?
> 
> 
> it's a bug, but fortunately that copy of the fixup_branch macro (in
> syscall.S) isn't actually used ;-) I'll remove it.
> 
> 
Just in the hope of help here are some cleanup:
	o at a place there was 2 enbraced #ifdef CONFIG_PA20,
	o in #else /* !CONFIG_PA20 */ ... #endif , afaik there are few chance that __LP64__ (aka CONFIG_64BIT)?
	o the (micro)-optimization we spoke previoulsy
	o here above syscall.S
--- arch/parisc/kernel/unaligned.c.Orig	2005-06-05 19:18:19.000000000 +0200
+++ arch/parisc/kernel/unaligned.c	2005-06-05 20:17:47.000000000 +0200
@@ -39,10 +39,15 @@
  #define RFMT "%08lx"
  #endif

+#ifndef	CONFIG_64BIT
+#define FIXUP_BRANCH(lbl) \
+	"\tb,n " #lbl "\n"
+#else
  #define FIXUP_BRANCH(lbl) \
  	"\tldil L%%" #lbl ", %%r1\n"			\
  	"\tldo R%%" #lbl "(%%r1), %%r1\n"		\
  	"\tbv,n %%r0(%%r1)\n"
+#endif

  /* 1111 1100 0000 0000 0001 0011 1100 0000 */
  #define OPCODE1(a,b,c)	((a)<<26|(b)<<12|(c)<<6)
@@ -213,6 +218,7 @@

  	return ret;
  }
+
  static int emulate_ldd(struct pt_regs *regs, int toreg, int flop)
  {
  	unsigned long saddr = regs->ior;
@@ -254,7 +260,7 @@
  	: "=r" (val), "=r" (ret)
  	: "0" (val), "r" (saddr), "r" (regs->isr)
  	: "r19", "r20" );
-#else
+#else	/* !CONFIG_PA20 */
      {
  	unsigned long valh=0,vall=0;
  	__asm__ __volatile__  (
@@ -275,22 +281,16 @@
  	FIXUP_BRANCH(4b)
  "	.previous\n"
  "	.section __ex_table,\"aw\"\n"
-#ifdef __LP64__
-"	.dword	1b,5b\n"
-"	.dword  2b,5b\n"
-"	.dword	3b,5b\n"
-#else
  "	.word	1b,5b\n"
  "	.word	2b,5b\n"
  "	.word	3b,5b\n"
-#endif
  "	.previous\n"
  	: "=r" (valh), "=r" (vall), "=r" (ret)
  	: "0" (valh), "1" (vall), "r" (saddr), "r" (regs->isr)
  	: "r19", "r20" );
  	val=((__u64)valh<<32)|(__u64)vall;
      }
-#endif
+#endif	/* !CONFIG_PA20 */

  	DPRINTF("val = 0x%llx\n", val);

@@ -393,6 +393,7 @@

  	return 0;
  }
+
  static int emulate_std(struct pt_regs *regs, int frreg, int flop)
  {
  	__u64 val;
@@ -451,7 +452,7 @@
  	: "=r" (ret)
  	: "r" (val), "r" (regs->ior), "r" (regs->isr)
  	: "r19", "r20", "r21", "r22", "r1" );
-#else
+#else	/* !CONFIG_PA20 */
      {
  	unsigned long valh=(val>>32),vall=(val&0xffffffffl);
  	__asm__ __volatile__ (
@@ -479,25 +480,17 @@
  	FIXUP_BRANCH(6b)
  "	.previous\n"
  "	.section __ex_table,\"aw\"\n"
-#ifdef __LP64__
-"	.dword	1b,7b\n"
-"	.dword  2b,7b\n"
-"	.dword	3b,7b\n"
-"	.dword  4b,7b\n"
-"	.dword  5b,7b\n"
-#else
  "	.word	1b,7b\n"
  "	.word	2b,7b\n"
  "	.word	3b,7b\n"
  "	.word	4b,7b\n"
  "	.word  	5b,7b\n"
-#endif
  "	.previous\n"
  	: "=r" (ret)
  	: "r" (valh), "r" (vall), "r" (regs->ior), "r" (regs->isr)
  	: "r19", "r20", "r21", "r1" );
      }
-#endif
+#endif	/* !CONFIG_PA20 */

  	return ret;
  }
@@ -683,14 +676,12 @@
  		ret = emulate_std(regs, R2(regs->iir),1);
  		break;

-#ifdef CONFIG_PA20
  	case OPCODE_LDD_L:
  		ret = emulate_ldd(regs, R2(regs->iir),0);
  		break;
  	case OPCODE_STD_L:
  		ret = emulate_std(regs, R2(regs->iir),0);
  		break;
-#endif
  	}
  #endif
  	switch (regs->iir & OPCODE3_MASK)
@@ -774,8 +765,7 @@
   * now, so we only check for PA1.1 encodings at this point.
   */

-int
-check_unaligned(struct pt_regs *regs)
+int check_unaligned(struct pt_regs *regs)
  {
  	unsigned long align_mask;

--- arch/parisc/kernel/syscall.S.Orig	2005-06-05 19:52:36.000000000 +0200
+++ arch/parisc/kernel/syscall.S	2005-06-05 19:57:15.000000000 +0200
@@ -23,23 +23,7 @@
  	 */
  #define KILL_INSN	break	0,0

-#ifdef CONFIG_64BIT
-	.level          2.0w
-#else
-	.level		1.1
-#endif
-
-#ifndef CONFIG_64BIT
-	.macro fixup_branch,lbl
-	b	    \lbl
-	.endm
-#else
-	.macro fixup_branch,lbl
-	ldil	    L%\lbl, %r1
-	ldo	    R%\lbl(%r1), %r1
-	bv,n        %r0(%r1)
-	.endm
-#endif
+	.level		LEVEL

  	.text

--- arch/parisc/lib/lusercopy.S.Orig	2005-06-05 19:36:55.000000000 +0200
+++ arch/parisc/lib/lusercopy.S	2005-06-05 20:02:51.000000000 +0200
@@ -54,9 +54,13 @@
  	.endm

  	.macro fixup_branch lbl
-	ldil	    L%\lbl, %r1
-	ldo	    R%\lbl(%r1), %r1
-	bv          %r0(%r1)
+#ifndef CONFIG_64BIT
+	b		\lbl
+#else
+	ldil		L%\lbl, %r1
+	ldo		R%\lbl(%r1), %r1
+	bv		%r0(%r1)
+#endif
  	.endm

  	/*
====<>====

Thanks,
	Joel
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On Wed, Jun 01, 2005 at 03:42:14PM +0200, Joel Soete wrote:
> Just for the record, I noticed that 2.6.11.11 patch contained:
> [snip]
>     [PATCH] Fix matroxfb on big-endian hardware
> [snip]
> 
> Is it already part of 2.6.12-rc5?

It's in the changelog for 2.6.12-rc2.

Has anyone tested it on parisc?  (Apparently the corruption only occured
in accelerated mode.)
-- 
Stuart Brady
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Subject: [parisc-linux] Remove __ldcw_align for PA-RISC 2.0 processors
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The 16-byte alignment for ldcw doesn't seem to be required on PA2.0
processors (though the details of the insn in the manual are confusing)
so let's get rid of it.

This is a rather nice savings:
    text    data     bss     dec     hex filename
4020166 1814920  368896 6203982  5eaa4e vmlinux
4096278 1822416  373400 6292094  60027e vmlinux.orig

The comment on the PA2.0 case could use a little work though. :)

(I also added labels to the __SPIN_LOCK_UNLOCKED, as in the
 first pass through, I missed that, which caused very interesting
 build warnings...)

cheers,
	kyle

Index: include/asm-parisc/spinlock.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/spinlock.h,v
retrieving revision 1.10
diff -u -d -p -r1.10 spinlock.h
--- include/asm-parisc/spinlock.h	7 Mar 2005 15:05:48 -0000	1.10
+++ include/asm-parisc/spinlock.h	9 Jun 2005 04:23:03 -0000
@@ -10,7 +10,12 @@
 
 #ifndef CONFIG_DEBUG_SPINLOCK
 
-#define __SPIN_LOCK_UNLOCKED	{ { 1, 1, 1, 1 } }
+#ifdef CONFIG_PA20
+#define __SPIN_LOCK_UNLOCKED    { .lock = 1, }
+#else
+#define __SPIN_LOCK_UNLOCKED	{ .lock = { 1, 1, 1, 1 }, }
+#endif
+
 #undef SPIN_LOCK_UNLOCKED
 #define SPIN_LOCK_UNLOCKED (spinlock_t) __SPIN_LOCK_UNLOCKED
 
Index: include/asm-parisc/system.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/system.h,v
retrieving revision 1.11
diff -u -d -p -r1.11 system.h
--- include/asm-parisc/system.h	4 Jun 2005 07:11:25 -0000	1.11
+++ include/asm-parisc/system.h	9 Jun 2005 04:23:03 -0000
@@ -145,6 +145,7 @@ static inline void set_eiem(unsigned lon
 	__ret; \
 })
 
+#ifndef CONFIG_PA20
 /* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
    and GCC only guarantees 8-byte alignment for stack locals, we can't
    be assured of 16-byte alignment for atomic lock data even if we
@@ -152,6 +153,7 @@ static inline void set_eiem(unsigned lon
    we use a struct containing an array of four ints for the atomic lock
    type and dynamically select the 16-byte aligned int from the array
    for the semaphore.  */
+
 #define __PA_LDCW_ALIGNMENT 16
 #define __ldcw_align(a) ({ \
   unsigned long __ret = (unsigned long) &(a)->lock[0];        		\
@@ -159,13 +161,26 @@ static inline void set_eiem(unsigned lon
   (volatile unsigned int *) __ret;                                      \
 })
 
+#else /*CONFIG_PA20*/
+/* Apparently this architectural requirement was removed from PA2.0
+   processors. So we'll forego the 16-byte alignment on these machines. */
+
+#define __PA_LDCW_ALIGNMENT 4
+#define __ldcw_align(a) ((volatile unsigned int *)a)
+
+#endif /*!CONFIG_PA20*/
+
 #ifdef CONFIG_SMP
 /*
  * Your basic SMP spinlocks, allowing only a single CPU anywhere
  */
 
 typedef struct {
-	volatile unsigned int lock[4];
+#ifdef CONFIG_PA20
+	volatile unsigned int lock;
+#else
+        volatile unsigned int lock[4];
+#endif
 #ifdef CONFIG_DEBUG_SPINLOCK
 	unsigned long magic;
 	volatile unsigned int babble;

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Subject: Re: [parisc-linux] Remove __ldcw_align for PA-RISC 2.0 processors
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On Thu, Jun 09, 2005 at 01:07:02AM -0400, Kyle McMartin wrote:
> The 16-byte alignment for ldcw doesn't seem to be required on PA2.0
> processors (though the details of the insn in the manual are confusing)

The PA 2.0 Arch book in fact requires it.

Jim Hull (HP PARISC/IPF Architect) published an errata later
indicating that the alignment could be relaxed to "native access"
(ie 4 byte for ldcw) if ",co" (Coherent Operation) completer was specified.
The email was dated Jan 29th, 2003.
But I can't a direct public reference of it. :^(

Just need to add ",co" to __ldcw() and we should be good.
That might need to be "ifdef CONFIG_PA20" as well...it's been
a while since we've had this conversion on parisc-linux mailing list.


> so let's get rid of it.
> 
> This is a rather nice savings:
>     text    data     bss     dec     hex filename
> 4020166 1814920  368896 6203982  5eaa4e vmlinux
> 4096278 1822416  373400 6292094  60027e vmlinux.orig

Nice indeed. :^)
I like the fact that we lose 76KB in code vs 7K+5K (data+bss).
Implies we might see a measurable perf increase in some code pathes.

> The comment on the PA2.0 case could use a little work though. :)
...
> --- include/asm-parisc/system.h	4 Jun 2005 07:11:25 -0000	1.11
> +++ include/asm-parisc/system.h	9 Jun 2005 04:23:03 -0000
...
> @@ -159,13 +161,26 @@ static inline void set_eiem(unsigned lon
>    (volatile unsigned int *) __ret;                                      \
>  })
>  
> +#else /*CONFIG_PA20*/
> +/* Apparently this architectural requirement was removed from PA2.0
> +   processors. So we'll forego the 16-byte alignment on these machines. */

You could borrow the comment from this patch:
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-November/021747.html

Looks good to me. Please commit after fixing up the comment.

thanks,
grant
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Subject: Re: [parisc-linux] Remove __ldcw_align for PA-RISC 2.0 processors
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> Just need to add ",co" to __ldcw() and we should be good.
> That might need to be "ifdef CONFIG_PA20" as well...it's been
> a while since we've had this conversion on parisc-linux mailing list.

Yes, you need ",co" to get rid of the 16-byte alignment requirement.
This causes the operation to be done in cache which is a performance
win.  I think this is safe for SMP.  While the ",co" completer was
added in PA 1.1, it wasn't required that it be supported.  Thus,
I think we are stuck with 16-byte alignment on PA 1.1.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Remove __ldcw_align for PA-RISC 2.0 processors
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On Thu, Jun 09, 2005 at 10:29:24AM -0400, John David Anglin wrote:
> Yes, you need ",co" to get rid of the 16-byte alignment requirement.
> This causes the operation to be done in cache which is a performance
> win.  I think this is safe for SMP.  While the ",co" completer was
> added in PA 1.1, it wasn't required that it be supported.  Thus,
> I think we are stuck with 16-byte alignment on PA 1.1.

Agreed.  Fortunately, the only machines we care about that are both PA1.1
and SMP are the PA7200 based servers and workstations -- J200, J210, J210XC,
D250, D260, D350, D360, K100, K200, K210, K400 and K410.  Technically, the
early T-class servers and some G, H, I class servers were also SMP PA1.1,
but we don't really care about them.  Anyway, it seems pointless to penalise
the 64-bit machines for something that doesn't affect them.

For userspace, it's obviously different.  There, we have to cope with
any PA processor, and thus have to use a "self aligning" lock, but the
kernel can be fine tuned.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] Remove __ldcw_align for PA-RISC 2.0 processors
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On Thu, Jun 09, 2005 at 03:46:15PM +0100, Matthew Wilcox wrote:
...
> For userspace, it's obviously different.  There, we have to cope with
> any PA processor, and thus have to use a "self aligning" lock, but the
> kernel can be fine tuned.

For *32-bit* userspace, I agree. Someday someone will be motivated
to get a 64-bit userspace together.

grant
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Subject: RE: [parisc-linux] Remove __ldcw_align for PA-RISC 2.0 processors
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Grant wrote: 

> Jim Hull (HP PARISC/IPF Architect) published an errata later
> indicating that the alignment could be relaxed to "native access"
> (ie 4 byte for ldcw) if ",co" (Coherent Operation) completer 
> was specified.
> The email was dated Jan 29th, 2003.
> But I can't a direct public reference of it. :^(

The public errata are here:

 
http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,592,0
0.html

and the semaphore alignment change is here:

 
http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,5310,
00.html

 -- Jim


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> Grant wrote: 
> 
> > Jim Hull (HP PARISC/IPF Architect) published an errata later
> > indicating that the alignment could be relaxed to "native access"
> > (ie 4 byte for ldcw) if ",co" (Coherent Operation) completer 
> > was specified.
> > The email was dated Jan 29th, 2003.
> > But I can't a direct public reference of it. :^(

As an aside, binutils support for cache control completers was
recently improved for all load/store instructions.  Binutils
is now more precise in when cache control completers can be used.
It should now be possible to use either 1.x or 2.0 mnemonics
with cache control completers.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] It is 2.6.12-rc6-pa1 kernel source,
 not 2.6.11-rc6-pa1 for both Matrox Mystique and Trident video cards
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Hi,

Sorry for the wrong info in the SUBJECT line. It is 2.6.12-rc6-pa1 kernel 
source, not 2.6.11-rc6-pa1 for both Matrox Mystique and Trident video cards.

Rgds,
Lee


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] Re: Trident video card caused Kernel Panic on HP
	Visualize 785/B2000 with rebuilt 2.6.11-rc6-pa1 kernel
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On Wed, Jun 15, 2005 at 10:59:21PM +0800, J. L. Lee wrote:
...
> The B2000 booted past the initial RAM disk, discovered the built-in 
> hardware and the PCI Trident card, then disaster struck. Kernel panic after 
> the discovery of the Trident card.

Thanks for the good problem description - I know those take a long
time to write up.

But this isn't a "kernel panic" - it's a "High Priority Machine Check" (HPMC).
The difference is the platform chipset detected an error vs something
in the kernel. Fortunately the register dump and other console
output gives enough clues.
The HPMC occurs when tridentfb.c tries to poke at:
        if (chip_id == TGUI9660) {
                outb(RevisionID,0x3C4);
                revision = inb(0x3C5);
...	

This generally can't work on parisc.
Only if the trident card is plugged in under PCI bus 0.
The driver needs to map the hard coded address to some PCI resource.
What does your "lspci -v" output say?

You could hack around this with "#ifndef CONFIG_PARISC"
and hardcode the "chip_id" to the model you have.
You could then find out if the rest of the code has a chance of working.

hth,
grant
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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Trident video card caused Kernel Panic on HP
 Visualize 785/B2000 with rebuilt 2.6.11-rc6-pa1 kernel
Date: Wed, 15 Jun 2005 22:59:21 +0800
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Hi,

I have just successfully set up a Matrox Millennum II PCI video card on an 
HPPA RISC B2000 workstation. I now able to connect an HP910 to the Matrox 
video port running as a text console. (Yet to figure out how to configure X 
Windows.)

However when I plugged in a Trident video card (also configured as a module 
in the kernel) it causes the kernel to panic!

The basic h/w configuration are as follows:

1) HP Visualize 785/B2000 with 256 MB of memory, 400 MHz processor & 10 GB 
disk;
2) HP 910 monitor connected to a STI fxe video card (in trouble, I switched 
to ttys0 as the console);
3) Additional Trident video card with no monitor connected;
4) No HP/UX. Only Debian GNU/Linux;

Software configuration:

5) Sarge distribution from 27 April ISO images were used for the base 
installation;
6) All packages installed updated/upgraded to the latest available 
(regardless bugs or no bugs, 14 June?);
7) No security updates applied as security.debian.org site can't be 
accessed for some reasons;
8) Kernel source from "linux-2.6.12-rc6-pa1.tar.bz2";

Built the kernel using instructions from "PARISC-LINUX: Building The Kernel 
documentation" by following their "The Old, Grotty Way To Build a Kernel" 
and chose to compile the Matrox acceleration, Matrox Millennum II & 
Mystique and Trident supports into the Kernel as modules. I have also 
created the initial RAM disk by "mkinitrd -o 
/usr/src/linux-2.6.12-rc6-pa1/initrd.img-2.6.12-rc6-pa1 2.6.12-rc6-pa1".

The B2000 booted past the initial RAM disk, discovered the built-in 
hardware and the PCI Trident card, then disaster struck. Kernel panic after 
the discovery of the Trident card.

The boot process and the Kernel panic and associated error messages are 
appended next for your perusal.

Rgds,
Lee

ps. Boot messages captured:

Booting...

Boot IO Dependent Code (IODC) revision 0




HARD Booted.

palo ipl 1.5 root@c3k Fri May 14 16:17:38 MDT 2004

Partition Start(MB) End(MB) Id Type


1               1      31   f0 Palo


2    	     8427    8678   82 swap


3              32     157   83 ext2


4             158    8426   83 ext2




PALO(F0) partition contains:

     0/vmlinux32 4968722 bytes @ 0x44000

Information: No console specified on kernel command line. This is normal.

PALO will choose the console currently used by firmware (serial).


Command line for kernel: 'root=/dev/sda4 HOME=/ console=ttyS0 TERM=vt102
palo_kernel=3/vmlinux'



Selected kernel: /vmlinux from partition 3



Selected ramdisk: /initrd.img from partition 3



ELF32 executable



Entry 00100080 first 00100000 n 2



Segment 0 load 00100000 size 3279168 mediaptr 0x1000



Segment 1 load 00424000 size 393350 mediaptr 0x322000



Loading ramdisk 4804608 bytes @ 0fb59000...



Branching to kernel entry point 0x00100080.  If this is the last



message you see, you may need to switch your console.  This is



a common symptom -- search the FAQ and mailing list at parisc-linux.org



Linux version 2.6.12-rc6-pa1 (root@DebianHPPA.example.com)
(gcc version 3.3.5 (Debian 1:3.3.5-13)) #1 Wed Jun 15 18:27:54 SGT 2005

FP[0] enabled: Rev 1 Model 16

The 32-bit Kernel has started...

Initialized PDC Console for debugging.

Determining PDC firmware type: System Map.

model 00005d00 00000481 00000000 00000002 775714fc 100000f0 00000008 
000000b2 000000b2
vers  00000204
CPUID vers 17 rev 8 (0x00000228)
capabilities 0x3
model 9000/785/B2000
Total Memory: 256 MB
initrd: 1fb59000-1ffee000
initrd: reserving 0fb59000-0ffee000 (mem_max 10000000)
LCD display at f05d0008,f05d0000 registered
Built 1 zonelists
Kernel command line: root=/dev/sda4 HOME=/ console=ttyS0 TERM=vt102 
palo_kernel=3/vmlinux
PID hash table entries: 2048 (order: 11, 32768 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 262144k available
Security Framework v1.0.0 initialized
Capability LSM initialized
Mount-cache hash table entries: 512
checking if image is initramfs...it isn't (bad gzip magic numbers); looks 
like an initrd
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Kazoo W+ at 0xfffa0000 [32] { 0, 0x0, 0x5d0, 0x00004 }
5. Memory at 0xfed10200 [49] { 1, 0x0, 0x09d, 0x00009 }
CPU(s): 1 x PA8600 (PCX-W+) at 400.000000 MHz
Setting cache flush threshold to 40 (1 CPUs online)
SBA found Astro 2.1 at 0xfed00000
LBA version TR2.1 (0x2) found at 0xfed30000
PCI: Enabled native mode for NS87415 (pif=0x8f)
LBA version TR2.1 (0x2) found at 0xfed32000
SCSI subsystem initialized
TC classifier action (bugs to netdev@oss.sgi.com cc hadi@cyberus.ca)
unwind_init: start = 0x10367b40, end = 0x1038cf00, entries = 9532
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Initializing Cryptographic API
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 67)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
PDC Stable Storage facility v0.09
Soft power switch enabled, polling @ 0xf0400804.
STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f4c20000 (128 kB), fb at fb000000 (16 MB)
     id 35acda16-9a02587, conforms to spec rev. 8.0c
     graphics card name: HPA4982A
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
tridentfb: Trident framebuffer 0.7.8-NEWAPI initializing


Backtrace:
  [<10113650>] inb+0x60/0x7c
  [<102469c4>] trident_pci_probe+0x438/0x4d4
  [<1020ceb8>] pci_device_probe_static+0x60/0x78
  [<1020cf10>] __pci_device_probe+0x40/0x60
  [<1020cf5c>] pci_device_probe+0x2c/0x58
  [<1026f200>] driver_probe_device+0x38/0x88
  [<1026f3a8>] driver_attach+0x84/0xc0
  [<1026f914>] bus_add_driver+0xa4/0xcc
  [<1020d27c>] pci_register_driver+0x70/0xa0
  [<1044378c>] tridentfb_init+0x50/0x64
  [<10430954>] do_initcalls+0x8c/0x130
  [<10103914>] init+0x3c/0x10c
  [<1010bc5c>] ret_from_kernel_thread+0x1c/0x24


High Priority Machine Check (HPMC): Code=1 regs=10397080 (Addr=00000000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001101 Not tainted
r00-03  00000000 104a8810 10113650 104ad810
r04-07  00008000 1f440c00 10340000 10482150
r08-11  1032d000 1f440c00 1032d000 1032d000
r12-15  10332800 1032d000 10493810 103a6010
r16-19  f00008c4 f000017c f0000174 fee003c5
r20-23  0000000f 00000000 10214594 00000002
r24-27  00000009 000003c5 1fffd580 1038d010
r28-31  000000ff 40000000 1fb04400 10113650
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 102145a8 102145ac
  IIR: 0e60001c    ISR: a607fffb  IOR: 802003c5
  CPU:        0   CR30: 1fb04000 CR31: 10428000
  ORIG_R28: 00000000
  IAOQ[0]: lba_astro_in8+0x14/0x24
  IAOQ[1]: lba_astro_in8+0x18/0x24
  RP(r2): inb+0x60/0x7c
Kernel panic - not syncing: High Priority Machine Check (HPMC)



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From - Thu Nov 08 21:33:32 2018
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From: "J. L. Lee" <jllee@singnet.com.sg>
Newsgroups: gmane.linux.ports.parisc
Subject: Matrox Mystique video card on HP Visualize 785/B2000 with
  rebuilt 2.6.11-rc6-pa1 kernel
Date: Wed, 15 Jun 2005 23:36:10 +0800
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Xref: news.gmane.org gmane.linux.ports.parisc:22774

Hi,

I have set up successfully a Matrox Millennum II PCI video card on an HPPA 
RISC B2000 workstation. I now able to connect an HP910 to the Matrox 
Millennum video port running as a text console. (Yet to figure out how to 
configure X Windows.)

However when I plugged in a Matrox Mystique video card (also configured as 
a module in the kernel) the kernel fail to bring it up with the following 
error msgs:

matroxfb: Matrox Mystique (PCI) detected
matroxfb: Cannot determine memory size
matroxfb: probe of 000:01:04.0 failed with error -1

and the kernel booted up normally. Any idea what happened?

The basic h/w configuration are as follows:

1) HP Visualize 785/B2000 with 256 MB of memory, 400 MHz processor & 10 GB 
disk;
2) HP 910 monitor connected to a STI fxe video card (in trouble, I switched 
to ttys0 as the console);
3) Additional Matrox Mystique video card with no monitor connected;
4) No HP/UX. Only Debian GNU/Linux;

Software configuration:

5) Sarge distribution from 27 April ISO images were used for the base 
installation;
6) All packages installed updated/upgraded to the latest available 
(regardless bugs or no bugs, 14 June?);
7) No security updates applied as security.debian.org site can't be 
accessed for some reasons;
8) Kernel source from "linux-2.6.12-rc6-pa1.tar.bz2";

Built the kernel using instructions from "PARISC-LINUX: Building The Kernel 
documentation" by following their "The Old, Grotty Way To Build a Kernel" 
and chose to compile the Matrox acceleration, Matrox Millennum II & 
Mystique and Trident supports into the Kernel as modules. I have also 
created the initial RAM disk by "mkinitrd -o 
/usr/src/linux-2.6.12-rc6-pa1/initrd.img-2.6.12-rc6-pa1 2.6.12-rc6-pa1".

Rgds,
Lee




-- 
To UNSUBSCRIBE, email to debian-hppa-REQUEST@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org



From - Thu Nov 08 21:33:32 2018
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From: "J. L. Lee" <jllee@singnet.com.sg>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problems in getting X-Windows to run on HP Visualize
 785/B2000
 with rebuilt 2.6.12-rc6-pa1 kernel and Matrox Millennum II
Date: Thu, 16 Jun 2005 14:40:36 +0800
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Xref: news.gmane.org gmane.linux.ports.parisc:22775

Hi,

Yesterday I reported that I have set up successfully a Matrox Millennum II 
PCI video card on an HPPA RISC B2000 workstation and was able to connect an 
HP910 to the Matrox Millennum video port running it as a text console.

I tried today to install and configure X Windows and am encountering 
problems. I installed, upgraded and configured the X Windows package (not 
by selecting Debian Software selection's "Desktop Environment" selection 
but selecting X Windows package using Aptitute from the "Manual Selection" 
in the same menu).

I configured X according to the hardware I have and made sure it would boot 
up on Init State 2 and rebooted the B2000 with the Matrox Millennum II card 
inside. It hung after displayed the login prompt and followed almost 
immediately by "Backtrace:" (with no more output)!

I then removed the Matrox Millennum II card and rebooted again. It was 
successful this time with the same configuration files!

Any suggestion on where I should "shoot" next (next actions)?

Rgds,
Lee

ps. Last few lines of boot messages captured with the Matrox Millennum II 
card. If you need the full boot messages for both the boot with and without 
the Matrox Millennum II card pls let me know. I will send them as 
attachment to you.

Starting portmap daemon: portmap.

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Thu Jun 16 13:48:27 SGT 2005

Initializing random number generator...done.
Setting up X server socket directory /tmp/.X11-unix...done.
Setting up ICE socket directory /tmp/.ICE-unix...done.

INIT: Entering runlevel: 2

Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting portmap daemon: portmap.
Starting internet superserver: inetd.
Setting up X font server socket directory /tmp/.font-unix...done.
Starting X font server: xfs.
Starting X-TT font server: xfs-xtt.
Starting Xprint servers: Xprt.
Starting file alteration monitor: FAM.
Starting periodic command scheduler: cron.
Starting WINGs display manager: wdm.
Not starting X display manager (xdm); it is not the default display manager.

Debian GNU/Linux 3.1 DebianHPPA.example.com ttyS0

DebianHPPA.example.com login:

Backtrace:



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From - Thu Nov 08 21:33:32 2018
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From: Max Grabert <parisc@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Problems in getting X-Windows to run on HP
	Visualize 785/B2000 with rebuilt 2.6.12-rc6-pa1 kernel and
	Matrox Millennum II
Date: Thu, 16 Jun 2005 19:10:08 +0100
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On 6/16/05, J. L. Lee <jllee@singnet.com.sg> wrote:
> Hi,
>
> Yesterday I reported that I have set up successfully a Matrox Millennum I=
I
> PCI video card on an HPPA RISC B2000 workstation and was able to connect =
an
> HP910 to the Matrox Millennum video port running it as a text console.
>
> I tried today to install and configure X Windows and am encountering
> problems. I installed, upgraded and configured the X Windows package (not
> by selecting Debian Software selection's "Desktop Environment" selection
> but selecting X Windows package using Aptitute from the "Manual Selection=
"
> in the same menu).
>
> I configured X according to the hardware I have and made sure it would bo=
ot
> up on Init State 2 and rebooted the B2000 with the Matrox Millennum II ca=
rd
> inside. It hung after displayed the login prompt and followed almost
> immediately by "Backtrace:" (with no more output)!

I guess the kernel crash results when xdm/XFree86 is being started.
That is what it usually looks like on my machine when I select the wrong
X11 driver.

> I then removed the Matrox Millennum II card and rebooted again. It was
> successful this time with the same configuration files!
>
> Any suggestion on where I should "shoot" next (next actions)?

Perhaps you are not using the fbdev driver for XFree86;
using the mga (=3Dnative) driver in /etc/X11/XF86Config-4 will crash
the machine (HPMC) when it tries to start X.

 Max
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Subject: UPDATE ON "Problems in getting X-Windows to run on HP
  Visualize 785/B2000 with rebuilt 2.6.12-rc6-pa1 kernel and Matrox
  Millennum II"
Date: Fri, 17 Jun 2005 02:47:14 +0800
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Hi All,

I got X Windows running on my B2000 now.

Thanks to the info provided by Max Grabert, all I needed to do was changing 
the video driver from "mga" to "fbdev" in the XFConfig-4.

Rgds,
Lee




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From: "J. L. Lee" <jllee@singnet.com.sg>
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Subject: Kernel panic while mounting a CD-ROM drive
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--=====================_17015517==.ALT
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Hi,

I set up my B2000 (with PCI Matrox Millennum II card) to run on kernel 
2.6.11-rc6-pa1 a few days ago and was able to mount the CD-ROM drive and 
used it on several occassions. However it kept on causing kernel panic and 
froze the B2000 whenever I tried to mount the CD-ROM drive since today.

The difference then and now (since I last used the CD-ROM drive) is that I 
have installed successfully a X Windows package. Could this be the reason? 
I have tried both init level 2 & 3 but this did not make a difference. Any 
idea what went wrong?

(Please read pps below for the kernel panic messages.)

Rgds,
Lee

ps. Last few lines of the start-up messages before login prompt showing 
what components of X Windows is running:

Initializing random number generator...done.
Setting up X server socket directory /tmp/.X11-unix...done.
Setting up ICE socket directory /tmp/.ICE-unix...done.
INIT: Entering runlevel: 3
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Starting portmap daemon: portmap.
Starting internet superserver: inetd.
Setting up X font server socket directory /tmp/.font-unix...done.
Starting X font server: xfs.
Starting X-TT font server: xfs-xtt.
Starting Xprint servers: Xprt.
Starting file alteration monitor: FAM.
Starting periodic command scheduler: cron.
Not starting WINGs display manager (wdm); it is not the default display 
manager.
Not starting X display manager (xdm); it is not the default display manager.

Debian GNU/Linux 3.1 DebianHPPA.example.com ttyS0

DebianHPPA.example.com login:


pps. Kernel panic messages immediately after I issued "mount" command:

mount /dev/hda /media/cdrom0
Backtrace:

  [<10158408>] __blk_queue_bounce+0x1fc/0x294

  [<10278774>] __make_request+0x74/0x4e8

  [<10279050>] generic_make_request+0x1a8/0x26c

  [<10279184>] submit_bio+0x70/0x120

  [<10171a10>] submit_bh+0x148/0x1ac

  [<101705e8>] block_read_full_page+0x220/0x338

  [<1015125c>] read_pages+0x16c/0x1d8

  [<101513d4>] __do_page_cache_readahead+0x10c/0x190

  [<1015160c>] blockable_page_cache_readahead+0x68/0xe0

  [<101518c4>] page_cache_readahead+0x18c/0x1ac

  [<1014a050>] do_generic_mapping_read+0x6c0/0x6c8

  [<1014a374>] __generic_file_aio_read+0x1b0/0x1c8

  [<1014a494>] generic_file_read+0x90/0xb8

  [<1016c210>] vfs_read+0xe0/0x158

  [<1016c52c>] sys_read+0x58/0xa8

  [<1010d12c>] syscall_exit+0x0/0x14



Kernel Fault: Code=26 regs=1ba94a40 (Addr=0000000c)


      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI

PSW: 00000000000001101110111100001111 Not tainted

r00-03  00000000 103a7010 10158408 00011210

r04-07  00011200 00000000 00000000 1f44d140

r08-11  1ba94898 00000000 1f76c370 1049f010

r12-15  00000000 10000000 1049f010 10000000

r16-19  1049f010 10175040 1fff2420 1013ed60

r20-23  1ba949d4 ffffffaf 1ba949d4 00000000

r24-27  00000000 00000010 00011200 1038d010

r28-31  1f44d140 00052045 1ba94a40 1014d1ac

sr0-3   00000000 00000000 00000000 00000028

sr4-7   00000000 00000000 00000000 00000000


IASQ: 00000000 00000000 IAOQ: 1014d19c 1014d1a0

  IIR: 0cb81099    ISR: 00000000  IOR: 0000000c

  CPU:        0   CR30: 1ba94000 CR31: 10428000

  ORIG_R28: ea3dad4f

  IAOQ[0]: mempool_alloc+0x9c/0x144

  IAOQ[1]: mempool_alloc+0xa0/0x144

  RP(r2): __blk_queue_bounce+0x1fc/0x294

Kernel panic - not syncing: Kernel Fault




--=====================_17015517==.ALT
Content-Type: text/html; charset="us-ascii"

<html>
Hi,<br><br>
I set up my B2000 (with PCI Matrox Millennum II card) to run on kernel
2.6.11-rc6-pa1 a few days ago and was able to mount the CD-ROM drive and
used it on several occassions. However it kept on causing kernel panic
and froze the B2000 whenever I tried to mount the CD-ROM drive since
today. <br><br>
The difference then and now (since I last used the CD-ROM drive) is that
I have installed successfully a X Windows package. Could this be the
reason? I have tried both init level 2 &amp; 3 but this did not make a
difference. Any idea what went wrong?<br><br>
(Please read pps below for the kernel panic messages.)<br><br>
Rgds,<br>
Lee<br><br>
ps. Last few lines of the start-up messages before login prompt showing
what components of X Windows is running:<br><br>
Initializing random number generator...done.<br>
Setting up X server socket directory /tmp/.X11-unix...done.<br>
Setting up ICE socket directory /tmp/.ICE-unix...done.<br>
INIT: Entering runlevel: 3<br>
Starting system log daemon: syslogd.<br>
Starting kernel log daemon: klogd.<br>
Starting portmap daemon: portmap.<br>
Starting internet superserver: inetd.<br>
Setting up X font server socket directory /tmp/.font-unix...done.<br>
Starting X font server: xfs.<br>
Starting X-TT font server: xfs-xtt.<br>
Starting Xprint servers: Xprt.<br>
Starting file alteration monitor: FAM.<br>
Starting periodic command scheduler: cron.<br>
Not starting WINGs display manager (wdm); it is not the default display
manager.<br>
Not starting X display manager (xdm); it is not the default display
manager.<br><br>
Debian GNU/Linux 3.1 DebianHPPA.example.com ttyS0<br><br>
DebianHPPA.example.com login:<br><br>
<br>
pps. Kernel panic messages immediately after I issued &quot;mount&quot;
command:<br><br>
<font face="Courier New, Courier">mount /dev/hda /media/cdrom0<br>
Backtrace:<br><br>
&nbsp;[&lt;10158408&gt;] __blk_queue_bounce+0x1fc/0x294<br><br>
&nbsp;[&lt;10278774&gt;] __make_request+0x74/0x4e8<br><br>
&nbsp;[&lt;10279050&gt;] generic_make_request+0x1a8/0x26c<br><br>
&nbsp;[&lt;10279184&gt;] submit_bio+0x70/0x120<br><br>
&nbsp;[&lt;10171a10&gt;] submit_bh+0x148/0x1ac<br><br>
&nbsp;[&lt;101705e8&gt;] block_read_full_page+0x220/0x338<br><br>
&nbsp;[&lt;1015125c&gt;] read_pages+0x16c/0x1d8<br><br>
&nbsp;[&lt;101513d4&gt;] __do_page_cache_readahead+0x10c/0x190<br><br>
&nbsp;[&lt;1015160c&gt;]
blockable_page_cache_readahead+0x68/0xe0<br><br>
&nbsp;[&lt;101518c4&gt;] page_cache_readahead+0x18c/0x1ac<br><br>
&nbsp;[&lt;1014a050&gt;] do_generic_mapping_read+0x6c0/0x6c8<br><br>
&nbsp;[&lt;1014a374&gt;] __generic_file_aio_read+0x1b0/0x1c8<br><br>
&nbsp;[&lt;1014a494&gt;] generic_file_read+0x90/0xb8<br><br>
&nbsp;[&lt;1016c210&gt;] vfs_read+0xe0/0x158<br><br>
&nbsp;[&lt;1016c52c&gt;] sys_read+0x58/0xa8<br><br>
&nbsp;[&lt;1010d12c&gt;] syscall_exit+0x0/0x14<br><br>
<br><br>
Kernel Fault: Code=26 regs=1ba94a40 (Addr=0000000c)<br><br>
<br>
&nbsp;&nbsp;&nbsp;&nbsp; YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI<br><br>
PSW: 00000000000001101110111100001111 Not tainted<br><br>
r00-03&nbsp; 00000000 103a7010 10158408 00011210<br><br>
r04-07&nbsp; 00011200 00000000 00000000 1f44d140<br><br>
r08-11&nbsp; 1ba94898 00000000 1f76c370 1049f010<br><br>
r12-15&nbsp; 00000000 10000000 1049f010 10000000<br><br>
r16-19&nbsp; 1049f010 10175040 1fff2420 1013ed60<br><br>
r20-23&nbsp; 1ba949d4 ffffffaf 1ba949d4 00000000<br><br>
r24-27&nbsp; 00000000 00000010 00011200 1038d010<br><br>
r28-31&nbsp; 1f44d140 00052045 1ba94a40 1014d1ac<br><br>
sr0-3&nbsp;&nbsp; 00000000 00000000 00000000 00000028<br><br>
sr4-7&nbsp;&nbsp; 00000000 00000000 00000000 00000000<br><br>
<br>
IASQ: 00000000 00000000 IAOQ: 1014d19c 1014d1a0<br><br>
&nbsp;IIR: 0cb81099&nbsp;&nbsp;&nbsp; ISR: 00000000&nbsp; IOR:
0000000c<br><br>
&nbsp;CPU:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp; CR30:
1ba94000 CR31: 10428000<br><br>
&nbsp;ORIG_R28: ea3dad4f<br><br>
&nbsp;IAOQ[0]: mempool_alloc+0x9c/0x144<br><br>
&nbsp;IAOQ[1]: mempool_alloc+0xa0/0x144<br><br>
&nbsp;RP(r2): __blk_queue_bounce+0x1fc/0x294<br><br>
Kernel panic - not syncing: Kernel Fault<br><br>
&nbsp;<br>
</font><br>
</html>

--=====================_17015517==.ALT--



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Subject: Re: [parisc-linux] Kernel panic while mounting a CD-ROM drive
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On 6/17/05, J. L. Lee <jllee@singnet.com.sg> wrote:
>  Hi,
>=20
>  I set up my B2000 (with PCI Matrox Millennum II card) to run on kernel
> 2.6.11-rc6-pa1 a few days ago and was able to mount the CD-ROM drive and
> used it on several occassions. However it kept on causing kernel panic an=
d
> froze the B2000 whenever I tried to mount the CD-ROM drive since today.=
=20
>=20
>  The difference then and now (since I last used the CD-ROM drive) is that=
 I
> have installed successfully a X Windows package. Could this be the reason=
?

Sounds rather unlikely ...
=20
> I have tried both init level 2 & 3 but this did not make a difference.
> Any idea what went wrong?

Perhaps you are using the ide-cd driver in the kernel?
It is known to cause a HPMC on PA ...
Make sure you don't have ide-cd (IDE ATAPI CD-ROM support) enabled
in the kernel, but use ide-scsi (IDE SCSI Emulation) instead
(and enable SCSI CD-ROM support).
You also might need to append "hda=3Dide-scsi" in your kernel boot
options (/etc/palo.conf)

   Max
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Subject: [parisc-linux] Re: Kernel panic while mounting a CD-ROM drive
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Hello!

The same happens on my C3000 using the prebuild kernels from parisc-linux.org and
a IDE cdrom drive.
[but there is some progress as my USB keyboard works again so I can use the local monitor for login].
I think the last kernel I tested was version 2.6.12-rc5-pa3

What 'worries' me is that I can see a message like 'module ide_cd missing' when booting.
So far I don't know if that message indicates some error in the kernel (build) or if my configuration tells
the kernel to load it 'dynamically' afterwards (found nothing in /etc/...)

BTW: When I use a serial cable and connect it a PC running minicom I get normal console output, but
suddenly (during hardware detection if I remember right) it starts to beep a lot  and I get only
garbage on the screen. After that 'dataquake' is over it works again ...

When I have some time this weekend to test the newest kernel I will try to log the boot message and kernel
panic again - the last time it was somehow missing from my minicom logfile ...)

Erik.

"J. L. Lee" <jllee@singnet.com.sg> schrieb am 17.06.05 17:27:08:
>  Hi,
> 
>  I set up my B2000 (with PCI Matrox Millennum II card) to run on kernel 2.6.11-rc6-pa1 a few days ago and was able to mount the CD-ROM drive and used it on several occassions. However it kept on causing kernel panic and froze the B2000 whenever I tried to mount the CD-ROM drive since today. 
> 
>  The difference then and now (since I last used the CD-ROM drive) is that I have installed successfully a X Windows package. Could this be the reason? I have tried both init level 2 & 3 but this did not make a difference. Any idea what went wrong?
> 
>  (Please read pps below for the kernel panic messages.)
> 
>  Rgds,
>  Lee
> 
>  ps. Last few lines of the start-up messages before login prompt showing what components of X Windows is running:
> 
> Initializing random number generator...done.
>  Setting up X server socket directory /tmp/.X11-unix...done.
>  Setting up ICE socket directory /tmp/.ICE-unix...done.
>  INIT: Entering runlevel: 3
>  Starting system log daemon: syslogd.
>  Starting kernel log daemon: klogd.
>  Starting portmap daemon: portmap.
>  Starting internet superserver: inetd.
>  Setting up X font server socket directory /tmp/.font-unix...done.
>  Starting X font server: xfs.
>  Starting X-TT font server: xfs-xtt.
>  Starting Xprint servers: Xprt.
>  Starting file alteration monitor: FAM.
>  Starting periodic command scheduler: cron.
>  Not starting WINGs display manager (wdm); it is not the default display manager.
>  Not starting X display manager (xdm); it is not the default display manager.
> 
>  Debian GNU/Linux 3.1 DebianHPPA.example.com ttyS0
> 
>  DebianHPPA.example.com login:
> 
>  
>  pps. Kernel panic messages immediately after I issued "mount" command:
> 
>  mount /dev/hda /media/cdrom0
>  Backtrace:
> 
>   [<10158408>] __blk_queue_bounce+0x1fc/0x294
> 
>   [<10278774>] __make_request+0x74/0x4e8
> 
>   [<10279050>] generic_make_request+0x1a8/0x26c
> 
>   [<10279184>] submit_bio+0x70/0x120
> 
>   [<10171a10>] submit_bh+0x148/0x1ac
> 
>   [<101705e8>] block_read_full_page+0x220/0x338
> 
>   [<1015125c>] read_pages+0x16c/0x1d8
> 
>   [<101513d4>] __do_page_cache_readahead+0x10c/0x190
> 
>   [<1015160c>] blockable_page_cache_readahead+0x68/0xe0
> 
>   [<101518c4>] page_cache_readahead+0x18c/0x1ac
> 
>   [<1014a050>] do_generic_mapping_read+0x6c0/0x6c8
> 
>   [<1014a374>] __generic_file_aio_read+0x1b0/0x1c8
> 
>   [<1014a494>] generic_file_read+0x90/0xb8
> 
>   [<1016c210>] vfs_read+0xe0/0x158
> 
>   [<1016c52c>] sys_read+0x58/0xa8
> 
>   [<1010d12c>] syscall_exit+0x0/0x14
> 
>  
> 
>  Kernel Fault: Code=26 regs=1ba94a40 (Addr=0000000c)
> 
>  
>       YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> 
>  PSW: 00000000000001101110111100001111 Not tainted
> 
>  r00-03  00000000 103a7010 10158408 00011210
> 
>  r04-07  00011200 00000000 00000000 1f44d140
> 
>  r08-11  1ba94898 00000000 1f76c370 1049f010
> 
>  r12-15  00000000 10000000 1049f010 10000000
> 
>  r16-19  1049f010 10175040 1fff2420 1013ed60
> 
>  r20-23  1ba949d4 ffffffaf 1ba949d4 00000000
> 
>  r24-27  00000000 00000010 00011200 1038d010
> 
>  r28-31  1f44d140 00052045 1ba94a40 1014d1ac
> 
>  sr0-3   00000000 00000000 00000000 00000028
> 
>  sr4-7   00000000 00000000 00000000 00000000
> 
>  
>  IASQ: 00000000 00000000 IAOQ: 1014d19c 1014d1a0
> 
>   IIR: 0cb81099    ISR: 00000000  IOR: 0000000c
> 
>   CPU:        0   CR30: 1ba94000 CR31: 10428000
> 
>   ORIG_R28: ea3dad4f
> 
>   IAOQ[0]: mempool_alloc+0x9c/0x144
> 
>   IAOQ[1]: mempool_alloc+0xa0/0x144
> 
>   RP(r2): __blk_queue_bounce+0x1fc/0x294
> 
>  Kernel panic - not syncing: Kernel Fault
> 
>   
>  
>  


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Subject: Re: [parisc-linux] Re: Kernel panic while mounting a CD-ROM drive
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On Fri, Jun 17, 2005 at 06:05:38PM +0200, Erik Heckers wrote:
> 
> Hello!
> 
> The same happens on my C3000 using the prebuild kernels from parisc-linux.org and
> a IDE cdrom drive.
> [but there is some progress as my USB keyboard works again so I can use the local monitor for login].
> I think the last kernel I tested was version 2.6.12-rc5-pa3
> 
> What 'worries' me is that I can see a message like 'module ide_cd missing' when booting.

Please capture and post the entire console output from firmware prompt
until "login" prompt.

> So far I don't know if that message indicates some error in the kernel (build) or if my configuration tells
> the kernel to load it 'dynamically' afterwards (found nothing in /etc/...)

If the kernel boots at all, you can look in /lib/modules/`uname -r`/kernel/drivers/ide/

> BTW: When I use a serial cable and connect it a PC running minicom I
> get normal console output, but suddenly (during hardware detection if
>  I remember right) it starts to beep a lot  and I get only
> garbage on the screen. After that 'dataquake' is over it works again ...

I expect this is because the suckyio chip gets reset by the
pdc_io_reset_devices() call in sba_iommu.c. And since the serial device
is integrated in suckyio, serial gets pounded as well.

> When I have some time this weekend to test the newest kernel I will try to log the boot message and kernel
> panic again - the last time it was somehow missing from my minicom logfile ...)

that would be good.

thanks,
grant
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Kernel panic c3k,
	memset -> journal_add_journal_head
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To: carlos@systemhalted.org (Carlos O'Donell)
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In-Reply-To: <20050620051542.GA18349@systemhalted.org> from "Carlos O'Donell"
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Xref: news.gmane.org gmane.linux.ports.parisc:22782

> pa,
> 
> 'make -k check' in the binutils testsuite consistently crashes my box :(

FWIW, I haven't been able to crash 2.6.10-pa11 with the enclosed
change in just under 6 days of running.  Expect sometimes hangs after
the ld test.  There's also an issue with ksoftirqd/0.  It never
seems to sleep, so the load average never drops below 1.  I'm using
the default config.

Except for the alignment change in pacache.S, all the changes are
backports of later patches..

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: arch/parisc/kernel/pacache.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/pacache.S,v
retrieving revision 1.15
diff -u -p -u -3 -p -r1.15 pacache.S
--- arch/parisc/kernel/pacache.S	5 Jan 2005 05:54:11 -0000	1.15
+++ arch/parisc/kernel/pacache.S	20 Jun 2005 14:57:06 -0000
@@ -46,7 +46,7 @@
 #include <asm/cache.h>
 
 	.text
-	.align	128
+	.align	512
 
 	.export flush_tlb_all_local,code
 
@@ -354,7 +354,11 @@ copy_user_page_asm:
 	std		%r22, 120(%r26)
 	ldo		128(%r26), %r26
 
-	ADDIB>		-1, %r1, 1b		/* bundle 10 */
+	/* conditional branches nullify on forward taken branch, and on
+	 * non-taken backward branch. Note that .+4 is a backwards branch.
+	 * The ldd should only get executed if the branch is taken.
+	 */
+	ADDIB>,n	-1, %r1, 1b		/* bundle 10 */
 	ldd		0(%r25), %r19		/* start next loads */
 
 #else
@@ -366,10 +370,10 @@ copy_user_page_asm:
 	 * the full 64 bit register values on interrupt, we can't
 	 * use ldd/std on a 32 bit kernel.
 	 */
+	ldw		0(%r25), %r19
 	ldi		64, %r1		/* PAGE_SIZE/64 == 64 */
 
 1:
-	ldw		0(%r25), %r19
 	ldw		4(%r25), %r20
 	ldw		8(%r25), %r21
 	ldw		12(%r25), %r22
@@ -399,11 +403,12 @@ copy_user_page_asm:
 	ldw		60(%r25), %r22
 	stw		%r19, 48(%r26)
 	stw		%r20, 52(%r26)
+	ldo		64(%r25), %r25
 	stw		%r21, 56(%r26)
 	stw		%r22, 60(%r26)
 	ldo		64(%r26), %r26
-	ADDIB>		-1, %r1, 1b
-	ldo		64(%r25), %r25
+	ADDIB>,n	-1, %r1, 1b
+	ldw		0(%r25), %r19
 #endif
 	bv		%r0(%r2)
 	nop
@@ -994,7 +999,7 @@ flush_kernel_icache_range_asm:
 
 	.procend
 
-	.align	128
+	.align	512
 
 	.export disable_sr_hashing_asm,code
 
Index: drivers/usb/input/hid-core.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/usb/input/hid-core.c,v
retrieving revision 1.15
diff -u -p -u -3 -p -r1.15 hid-core.c
--- drivers/usb/input/hid-core.c	4 Dec 2004 07:02:49 -0000	1.15
+++ drivers/usb/input/hid-core.c	20 Jun 2005 14:57:09 -0000
@@ -751,21 +751,31 @@ static __inline__ __u32 s32ton(__s32 val
 }
 
 /*
- * Extract/implement a data field from/to a report.
+ * Extract/implement a data field from/to a little endian report (bit array).
  */
 
 static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
 {
-	report += (offset >> 5) << 2; offset &= 31;
-	return (le64_to_cpu(get_unaligned((__le64*)report)) >> offset) & ((1 << n) - 1);
+	u32 x;
+
+	report += offset >> 3;  /* adjust byte index */
+	offset &= 8 - 1;
+	x = get_unaligned((u32 *) report);
+	x = le32_to_cpu(x);
+	x = (x >> offset) & ((1 << n) - 1);
+	return x;
 }
 
 static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
 {
-	report += (offset >> 5) << 2; offset &= 31;
-	put_unaligned((get_unaligned((__le64*)report)
-		& cpu_to_le64(~((((__u64) 1 << n) - 1) << offset)))
-		| cpu_to_le64((__u64)value << offset), (__le64*)report);
+	u32 x;
+
+	report += offset >> 3;
+	offset &= 8 - 1;
+	x = get_unaligned((u32 *)report);
+	x &= cpu_to_le32(~((((__u32) 1 << n) - 1) << offset));
+	x |= cpu_to_le32(value << offset);
+	put_unaligned(x,(u32 *)report);
 }
 
 /*
Index: fs/ioctl.c
===================================================================
RCS file: /var/cvs/linux-2.6/fs/ioctl.c,v
retrieving revision 1.5
diff -u -p -u -3 -p -r1.5 ioctl.c
--- fs/ioctl.c	21 Oct 2004 18:59:38 -0000	1.5
+++ fs/ioctl.c	20 Jun 2005 14:57:11 -0000
@@ -44,7 +44,11 @@ static int file_ioctl(struct file *filp,
 				return -EBADF;
 			return put_user(inode->i_sb->s_blocksize, p);
 		case FIONREAD:
-			return put_user(i_size_read(inode) - filp->f_pos, p);
+		{
+			int sz;
+			sz = i_size_read(inode) - filp->f_pos;
+			return put_user(sz, p);
+		}
 	}
 	if (filp->f_op && filp->f_op->ioctl)
 		return filp->f_op->ioctl(inode, filp, cmd, arg);
Index: include/asm-parisc/uaccess.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/uaccess.h,v
retrieving revision 1.17
diff -u -p -u -3 -p -r1.17 uaccess.h
--- include/asm-parisc/uaccess.h	17 Sep 2004 20:58:41 -0000	1.17
+++ include/asm-parisc/uaccess.h	20 Jun 2005 14:57:13 -0000
@@ -142,22 +142,23 @@ struct exception_data {
 #define __put_user(x,ptr)                                       \
 ({								\
 	register long __pu_err __asm__ ("r8") = 0;      	\
+        __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x);	\
 								\
 	if (segment_eq(get_fs(),KERNEL_DS)) {                   \
 	    switch (sizeof(*(ptr))) {                           \
-	    case 1: __put_kernel_asm("stb",x,ptr); break;       \
-	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
-	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
-	    case 8: STD_KERNEL(x,ptr); break;			\
+	    case 1: __put_kernel_asm("stb",__x,ptr); break;     \
+	    case 2: __put_kernel_asm("sth",__x,ptr); break;     \
+	    case 4: __put_kernel_asm("stw",__x,ptr); break;     \
+	    case 8: STD_KERNEL(__x,ptr); break;			\
 	    default: __put_kernel_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 	else {                                                  \
 	    switch (sizeof(*(ptr))) {                           \
-	    case 1: __put_user_asm("stb",x,ptr); break;         \
-	    case 2: __put_user_asm("sth",x,ptr); break;         \
-	    case 4: __put_user_asm("stw",x,ptr); break;         \
-	    case 8: STD_USER(x,ptr); break;			\
+	    case 1: __put_user_asm("stb",__x,ptr); break;       \
+	    case 2: __put_user_asm("sth",__x,ptr); break;       \
+	    case 4: __put_user_asm("stw",__x,ptr); break;       \
+	    case 8: STD_USER(__x,ptr); break;			\
 	    default: __put_user_bad(); break;			\
 	    }                                                   \
 	}                                                       \
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From: Carlos O'Donell <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [RFC] Emit OPD reloc for all global symbols and then
	some.
Date: Mon, 20 Jun 2005 15:02:52 -0400
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Cc: Randolph Chung <tausq@debian.org>,
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To: binutils@sources.redhat.com
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Xref: news.gmane.org gmane.linux.ports.parisc:22783


binutils,

--- Robust function descriptor comparison fixes ---

Under hppa-linux:
------------------
We want to generate a PLABEL32 (OPD reloc) against all global symbols,
and then some. For example it should be possible for an application to
call dlsym asking for the address of main, and when compared to main it
should match.

- The main symbol returned by dlsym is an OPD.
- The main symbol in the executable is pointing at the PLT.
- GCC does generat an OPD reloc against main.
- ld optimizes away away the OPD reloc, and main is pointed it at the PLT. 
- A comparison between the two functions fails (e.g. if (main == foo))

For the sake of "comparing" function descriptors, we need to emit that
OPD for main, and all global symbols.

How did we do this in the past? GCC had to keep exact function type
information and generate a call to a special function that resolved the
PLT, and did a comparison of the ip/gp pair in the PLT to the OPD ip/gp
pair. This special function required _GOT_ to be visible globally.

We don't want _GOT_ globally visible. We don't want special comparison
functions. We want an OPD per function, and comparison should be as
easy as address equality.

How is this accomplished?

a. Keep a consistent meaning for hh->plabel.
   It will always indicate the symbol has an OPD reloc against it.

b. In check_relocs we need to count the reloc against the symbol
   and allocate space.

c. In allocate_dynrelocs we need to keep the space for this symbol
   even if we would like to get rid of this.

d. In relocate_section we need to emit the OPD reloc for this symbol.

e. We must be careful to copy all the required bits in
   copy_indirect_symbol when the versioned symbol won't pass through 
   check_relocs, and needs the space we already allocated for the reloc.

There are a couple of places where I am in doubt:

elf32_hppa_hide_symbol:
-----------------------
The comment indicates "so that we can keep plt entries for plabels."
However the conditional checks for "!hh->plabel" and this seems 
contrary to my reasoning. Which probably means my reasoning is flawed.
I have left this reference to ->plabel alone.

copy_indirect_symbol:
----------------------
I unconditionally |= the bits of 'plabel' and 'non_plabel_ref' into the 
direct version of the symbol. Is this the correct behaviour?

check_reloc:
allocate_dynreloc:
relocate_section:
-------------------
All of them check 
        (!eh->non_got_ref || hh->plabel)
        && (!hh->elf.def_dynamic 
            && hh->def_regular 
            && hh->plabel)

non_got_ref is set only in the (!info->shared && eh->dynindx != -1), case.
So along with "|| hh->plabel", it identifies all the global symbols which in
the case of the executable *were* being optimized away to point into the
plt.

The other set of conditionals catches local def_regular symbols like
main which have an OPD reloc against them and should be emitted in the
executable.

Does that seem like a sound plan?

Nit picks:
-----------
The linker continues to do extra work, outputing the required
information to point the OPD word to the plt, but it's overwritten by
ld.so at runtime when it creates the OPD and puts the word there. I have
yet to clean this up, its removal would make linking faster (but not by
much).

Testing:
---------
C++ testing is required. The libstdc++ testsuite is probably a good
place where this might fail.

---

The patch below has a single regression in the entire toolchain, but
fixes all function comparison failues in the glibc testsuite. The single
regression in the gcc 4.0.0 'C' testsuite and the compilation times out.
The cause is under investigation.

--- elf32-hppa.c.00-cleanup	2005-06-20 14:13:37.000000000 -0400
+++ elf32-hppa.c	2005-06-20 14:14:35.000000000 -0400
@@ -229,6 +229,8 @@
 
   /* Set if this symbol is used by a plabel reloc.  */
   unsigned int plabel:1;
+  /* Set if the symbol is referenced by more than just a plabel reloc */
+  unsigned int non_plabel_ref:1;
 };
 
 struct elf32_hppa_link_hash_table {
@@ -371,6 +373,7 @@
       hh = hppa_elf_hash_entry (entry);
       hh->stub_cache = NULL;
       hh->dyn_relocs = NULL;
+      hh->non_plabel_ref = 0;
       hh->plabel = 0;
     }
 
@@ -589,10 +592,12 @@
   bfd_vma max_branch_offset;
   unsigned int r_type;
 
+  /* A symbol with a plabel does not require a stub, unless
+     it has more than just a plabel reference. */
   if (hh != NULL
       && hh->elf.plt.offset != (bfd_vma) -1
       && hh->elf.dynindx != -1
-      && !hh->plabel
+      && hh->non_plabel_ref
       && (info->shared
 	  || !hh->elf.def_regular
 	  || hh->elf.root.type == bfd_link_hash_defweak))
@@ -961,7 +966,6 @@
 elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
 {
   struct elf32_hppa_link_hash_table *htab;
-  struct elf_link_hash_entry *eh;
 
   /* Don't try to create the .plt and .got twice.  */
   htab = hppa_link_hash_table (info);
@@ -990,12 +994,7 @@
   htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss");
   htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss");
 
-  /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
-     application, because __canonicalize_funcptr_for_compare needs it.  */
-  eh = elf_hash_table (info)->hgot;
-  eh->forced_local = 0;
-  eh->other = STV_DEFAULT;
-  return bfd_elf_link_record_dynamic_symbol (info, eh);
+  return TRUE;
 }
 
 /* Copy the extra info we tack onto an elf_link_hash_entry.  */
@@ -1046,6 +1045,9 @@
       hh_ind->dyn_relocs = NULL;
     }
 
+  hh_dir->plabel |= hh_ind->plabel;
+  hh_dir->non_plabel_ref |= hh_ind->non_plabel_ref;
+  
   if (ELIMINATE_COPY_RELOCS
       && eh_ind->root.type != bfd_link_hash_indirect
       && eh_dir->dynamic_adjusted)
@@ -1109,11 +1111,11 @@
       if (r_symndx < symtab_hdr->sh_info)
 	hh = NULL;
       else
-        {
+	{
 	  hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
 	  while (hh->elf.root.type == bfd_link_hash_indirect
 		 || hh->elf.root.type == bfd_link_hash_warning)
-	    hh = hppa_elf_hash_entry (hh->elf.root.u.i.link);
+	    hh = hppa_elf_hash_entry (h->elf.root.u.i.link);
 	}
 
       r_type = ELF32_R_TYPE (rela->r_info);
@@ -1134,6 +1136,14 @@
 	  if (rela->r_addend != 0)
 	    abort ();
 
+          /* The definition is slightly changed: 
+	     All global symbols must have PLABEL32 relocs against
+	     their plabel data word, this will generate an OPD 
+	     against which symbol comparions may occur without
+	     help from special helper functions like 
+	     __canonicalize_function_pointer_for_compare.
+	     */
+	  
 	  /* If we are creating a shared library, then we need to
 	     create a PLT entry for all PLABELs, because PLABELs with
 	     local symbols may be passed via a pointer to another
@@ -1309,6 +1319,7 @@
 		}
 	      else if (need_entry & PLT_PLABEL)
 		{
+		  /* PLABEL to a local symbol */
 		  bfd_signed_vma *local_got_refcounts;
 		  bfd_signed_vma *local_plt_refcounts;
 
@@ -1369,6 +1380,12 @@
 	     may need to keep relocations for symbols satisfied by a
 	     dynamic library if we manage to avoid copy relocs for the
 	     symbol.  */
+
+	  /* Note we also allow certain local functions to emit
+	     relocs, this is so that glibc can create an OPD for
+	     this symbol at runtime. 'main' is probably the best
+	     example. */
+	    	    
 	  if ((info->shared
 	       && (sec->flags & SEC_ALLOC) != 0
 	       && (IS_ABSOLUTE_RELOC (r_type)
@@ -1381,7 +1398,10 @@
 		  && (sec->flags & SEC_ALLOC) != 0
 		  && hh != NULL
 		  && (hh->elf.root.type == bfd_link_hash_defweak
-		      || !hh->elf.def_regular)))
+		      || !hh->elf.def_regular
+		      || (!hh->elf.def_dynamic 
+			  && hh->elf.def_regular 
+			  && hh->plabel))))
 	    {
 	      struct elf32_hppa_dyn_reloc_entry *hdh_p;
 	      struct elf32_hppa_dyn_reloc_entry **hdh_head;
@@ -1703,6 +1723,7 @@
 	}
     }
 
+  /* TODO: This logic seems flawed. */
   if (! hppa_elf_hash_entry(eh)->plabel)
     {
       eh->needs_plt = 0;
@@ -1886,12 +1907,9 @@
 
       if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh))
 	{
-	  /* Allocate these later.  From this point on, h->plabel
-	     means that the plt entry is only used by a plabel.
-	     We'll be using a normal plt entry for this symbol, so
-	     clear the plabel indicator.  */
-	  
-	  hh->plabel = 0;
+	  /* Allocate these later.
+	     We have assume a non-plabel reference */
+	  hh->non_plabel_ref = 1;
 	}
       else if (hh->plabel)
 	{
@@ -1900,6 +1918,8 @@
 	  sec = htab->splt;
 	  eh->plt.offset = sec->size;
 	  sec->size += PLT_ENTRY_SIZE;
+	  /* Only a plabel reference */
+	  hh->non_plabel_ref = 0;
 	}
       else
 	{
@@ -1910,6 +1930,7 @@
     }
   else
     {
+      /* No .plt entry needed. */
       eh->plt.offset = (bfd_vma) -1;
       eh->needs_plt = 0;
     }
@@ -1941,7 +1962,7 @@
   
   if (htab->elf.dynamic_sections_created
       && eh->plt.offset != (bfd_vma) -1
-      && !hh->plabel
+      && hh->non_plabel_ref
       && eh->plt.refcount > 0)
     {
       /* Make an entry in the .plt section.  */
@@ -2011,21 +2032,28 @@
 	 visibility.  */
       if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT
 	  && eh->root.type == bfd_link_hash_undefweak)
-	hh->dyn_relocs = NULL;
+        {
+	  hh->dyn_relocs = NULL;
+	  return TRUE;
+	}
     }
   else
     {
       /* For the non-shared case, discard space for relocs against
 	 symbols which turn out to need copy relocs or are not
-	 dynamic.  */
-      
-      if (!eh->non_got_ref
-	  && ((ELIMINATE_COPY_RELOCS
-	       && eh->def_dynamic
-	       && !eh->def_regular)
-	       || (htab->elf.dynamic_sections_created
-		   && (eh->root.type == bfd_link_hash_undefweak
-		       || eh->root.type == bfd_link_hash_undefined))))
+	 dynamic. We always want a plabel dynrel for the OPD,
+	 even if it's a DEF_REGULAR && !DEF_DYNAMIC, we need this
+	 for function descriptor comparisons. */      
+      if ((!eh->non_got_ref || hh->plabel)
+	  && ((!eh->def_dynamic
+	       && eh->def_regular
+	       && hh->plabel)
+	      || (ELIMINATE_COPY_RELOCS
+	          && eh->def_dynamic
+	          && !eh->def_regular)
+	      || (htab->elf.dynamic_sections_created
+		  && (eh->root.type == bfd_link_hash_undefweak
+		      || eh->root.type == bfd_link_hash_undefined))))
 	{
 	  /* Make sure this symbol is output as a dynamic symbol.
 	     Undefined weak syms won't yet be marked as dynamic.  */
@@ -3186,7 +3214,7 @@
 	  || (hh != NULL
 	      && hh->elf.plt.offset != (bfd_vma) -1
 	      && hh->elf.dynindx != -1
-	      && !hh->plabel
+	      && hh->non_plabel_ref
 	      && (info->shared
 		  || !hh->elf.def_regular
 		  || hh->elf.root.type == bfd_link_hash_defweak)))
@@ -3627,9 +3655,16 @@
 	    bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
 	  break;
 
+	case R_PARISC_PLABEL32:
+
+	  /* This is a true dynamic plabel reloc, the other will be
+	     rebuilt to point at the plabel word, which points to a
+	     .plt entry */
+	  if (htab->elf.dynamic_sections_created)
+	    plabel = 1;
+	  
 	case R_PARISC_PLABEL14R:
 	case R_PARISC_PLABEL21L:
-	case R_PARISC_PLABEL32:
 	  if (htab->elf.dynamic_sections_created)
 	    {
 	      bfd_vma off;
@@ -3642,7 +3677,7 @@
 		  if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared,
 							 &hh->elf))
 		    {
-		      /* In a non-shared link, adjust_dynamic_symbols
+		      /* In a non-shared link, adjust_dynamic_symbol
 			 isn't called for symbols forced local.  We
 			 need to write out the plt entry here.  */
 		      if ((off & 1) != 0)
@@ -3724,7 +3759,6 @@
 				+ htab->splt->output_section->vma
 				+ 2);
 		}
-	      plabel = 1;
 	    }
 	  /* Fall through and possibly emit a dynamic relocation.  */
 
@@ -3765,10 +3799,13 @@
 	      || (!info->shared
 		  && hh != NULL
 		  && hh->elf.dynindx != -1
-		  && !hh->elf.non_got_ref
-		  && ((ELIMINATE_COPY_RELOCS
-		       && hh->elf.def_dynamic
-		       && !hh->elf.def_regular)
+		  && (!hh->elf.non_got_ref || plabel)
+		  && ((!hh->elf.def_dynamic
+		       && hh->elf.def_regular
+		       && plabel) 		    
+		      || (ELIMINATE_COPY_RELOCS
+		          && hh->elf.def_dynamic
+		          && !hh->elf.def_regular)
 		      || hh->elf.root.type == bfd_link_hash_undefweak
 		      || hh->elf.root.type == bfd_link_hash_undefined)))
 	    {
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Subject: [parisc-linux] Re: [RFC] Emit OPD reloc for all global symbols and
	then some.
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Xref: news.gmane.org gmane.linux.ports.parisc:22784

> > Under hppa-linux:
> > ------------------
> > We want to generate a PLABEL32 (OPD reloc) against all global symbols,
> > and then some. For example it should be possible for an application to
> > call dlsym asking for the address of main, and when compared to main it
> > should match.
> > 
> 
> Does it work on Linux/ia32? If not, why should it work on Linux/hppa?

The linux manpage for dlsym indicates that symbols in the main
program can be looked up with dlsym:

     If filename is a NULL pointer, then the returned handle is
     for the main program.  When given to dlsym(), this  handle
     causes a search for a symbol in the main program, followed
     by all shared libraries loaded  at  program  startup,  and
     then all shared libraries loaded by dlopen() with the flag
     RTLD_GLOBAL.

So, if it doesn't work, that would seem to be a bug in Linux/ia32.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: [RFC] Emit OPD reloc for all global symbols and
	then some.
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On Mon, Jun 20, 2005 at 04:26:25PM -0400, John David Anglin wrote:
> > > Under hppa-linux:
> > > ------------------
> > > We want to generate a PLABEL32 (OPD reloc) against all global symbols,
> > > and then some. For example it should be possible for an application to
> > > call dlsym asking for the address of main, and when compared to main it
> > > should match.
> > > 
> > 
> > Does it work on Linux/ia32? If not, why should it work on Linux/hppa?
> 
> The linux manpage for dlsym indicates that symbols in the main
> program can be looked up with dlsym:
> 
>      If filename is a NULL pointer, then the returned handle is
>      for the main program.  When given to dlsym(), this  handle
>      causes a search for a symbol in the main program, followed
>      by all shared libraries loaded  at  program  startup,  and
>      then all shared libraries loaded by dlopen() with the flag
>      RTLD_GLOBAL.
> 
> So, if it doesn't work, that would seem to be a bug in Linux/ia32.

It works if the global symbol is exported. But not all global symbols
in main are exported by default. You can use --export-dynamic to export
all global symbols.


H.J.
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On Wednesday 15 June 2005 1:06 pm, Grant Grundler wrote:
> The HPMC occurs when tridentfb.c tries to poke at:
>         if (chip_id == TGUI9660) {
>                 outb(RevisionID,0x3C4);
>                 revision = inb(0x3C5);
> ...	
> 
> This generally can't work on parisc.
> Only if the trident card is plugged in under PCI bus 0.
> The driver needs to map the hard coded address to some PCI resource.

0x3C4 and 0x3C5 are in the legacy VGA port range.  Does Astro have
programmable routing for that range?  If so, this could probably
be made to work with enough kernel support.  I'm working on some
similar stuff for ia64.
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Subject: Re: [parisc-linux] Re: [RFC] Emit OPD reloc for all global symbols
	and then some.
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On Mon, Jun 20, 2005 at 01:40:56PM -0700, H. J. Lu wrote:
> On Mon, Jun 20, 2005 at 04:26:25PM -0400, John David Anglin wrote:
> > > > Under hppa-linux:
> > > > ------------------
> > > > We want to generate a PLABEL32 (OPD reloc) against all global symbols,
> > > > and then some. For example it should be possible for an application to
> > > > call dlsym asking for the address of main, and when compared to main it
> > > > should match.
> > > > 
> > > 
> > > Does it work on Linux/ia32? If not, why should it work on Linux/hppa?
> > 
> > The linux manpage for dlsym indicates that symbols in the main
> > program can be looked up with dlsym:
> > 
> >      If filename is a NULL pointer, then the returned handle is
> >      for the main program.  When given to dlsym(), this  handle
> >      causes a search for a symbol in the main program, followed
> >      by all shared libraries loaded  at  program  startup,  and
> >      then all shared libraries loaded by dlopen() with the flag
> >      RTLD_GLOBAL.
> > 
> > So, if it doesn't work, that would seem to be a bug in Linux/ia32.
> 
> It works if the global symbol is exported. But not all global symbols
> in main are exported by default. You can use --export-dynamic to export
> all global symbols.

Regardless of wether or not I export all global symbols in main, I must
still emit OPD relocs in the executable for all dynamic symbols. In the
past the OPD reloc was "fudged" and pointed at the PLT, and this is not
a satisfactory situation. I want ld.so.1 to generate the OPD so we no
longer need gcc to emit the __cffc helper function for comparisons.

I owe you a big thank you for writing the generic function
descriptor code in glibc, since hppa is also using that code :)

c.

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Subject: Re: [parisc-linux] Re: [RFC] Emit OPD reloc for all global symbols
	and then some.
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On Mon, Jun 20, 2005 at 05:29:13PM -0400, Carlos O'Donell wrote:
> On Mon, Jun 20, 2005 at 01:40:56PM -0700, H. J. Lu wrote:
> > On Mon, Jun 20, 2005 at 04:26:25PM -0400, John David Anglin wrote:
> > > > > Under hppa-linux:
> > > > > ------------------
> > > > > We want to generate a PLABEL32 (OPD reloc) against all global symbols,
> > > > > and then some. For example it should be possible for an application to
> > > > > call dlsym asking for the address of main, and when compared to main it
> > > > > should match.
> > > > > 
> > > > 
> > > > Does it work on Linux/ia32? If not, why should it work on Linux/hppa?
> > > 
> > > The linux manpage for dlsym indicates that symbols in the main
> > > program can be looked up with dlsym:
> > > 
> > >      If filename is a NULL pointer, then the returned handle is
> > >      for the main program.  When given to dlsym(), this  handle
> > >      causes a search for a symbol in the main program, followed
> > >      by all shared libraries loaded  at  program  startup,  and
> > >      then all shared libraries loaded by dlopen() with the flag
> > >      RTLD_GLOBAL.
> > > 
> > > So, if it doesn't work, that would seem to be a bug in Linux/ia32.
> > 
> > It works if the global symbol is exported. But not all global symbols
> > in main are exported by default. You can use --export-dynamic to export
> > all global symbols.
> 
> Regardless of wether or not I export all global symbols in main, I must
> still emit OPD relocs in the executable for all dynamic symbols. In the
						^^^^^^^^^^

Did you mean dynamic or global? There is a big difference. In your
proposal, you said "We want to generate a PLABEL32 (OPD reloc) against
all global symbols,". I am not familiar with HPPA. I just want to know
what you have in mind.

> past the OPD reloc was "fudged" and pointed at the PLT, and this is not
> a satisfactory situation. I want ld.so.1 to generate the OPD so we no
> longer need gcc to emit the __cffc helper function for comparisons.


H.J.
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Subject: Re: [parisc-linux] Re: Trident video card caused Kernel Panic on HP
	Visualize 785/B2000 with rebuilt 2.6.11-rc6-pa1 kernel
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On Mon, Jun 20, 2005 at 02:45:19PM -0600, Bjorn Helgaas wrote:
> On Wednesday 15 June 2005 1:06 pm, Grant Grundler wrote:
> > The HPMC occurs when tridentfb.c tries to poke at:
> >         if (chip_id == TGUI9660) {
> >                 outb(RevisionID,0x3C4);
> >                 revision = inb(0x3C5);
> > ...	
> > 
> > This generally can't work on parisc.
> > Only if the trident card is plugged in under PCI bus 0.
> > The driver needs to map the hard coded address to some PCI resource.
> 
> 0x3C4 and 0x3C5 are in the legacy VGA port range.

Bjorn,
ok - thanks for the follow up.

> Does Astro have programmable routing for that range?

Supposedly yes. But it was never verified by the HW teams and
I've been told that it is in fact broken.

If someone wants to poke at this anyway, the "STATUS_CONTROL"
register documented in:
	http://ftp.parisc-linux.org/docs/chips/elroy_ers.ps

describes the "VGA Enable bit":
| VGA Enable (bit 3, 0x8)
|    If ve = 1, VGA frame buffer and IOP space accesses will never be
|    claimed by ELROY, regardless of range register programming. This bit
|    must be set if a VGA device is located on this PCI bus. Only one
|    ELROY in the system should have its ve bit set.
|    If ve = 0, ELROY may claim VGA space, depending on range register
|    programming.

ie a "directed range" could be programmed to redirect accesses from
MMIO space to a particular Elroy. Requires programming a directed
range in Astro and a matched "Extra LMMIO" range in Elroy.
I've never messed with this and always depended on firmware
to deal with range registers.

| VGA Frame Buffer Space
| The VGA frame buffer space is a fixed 128 k region from 640 k to (768 k - 1).
| The only PCI bus in the system that will claim this space is the one
| with the VGA Enable bit set. This PCI bus will also claim accesses to
| VGA I/O Space.


| VGA I/O Port Space
| The VGA I/O space is the fixed I/O space region from 0x03B0 through
| 0x03DF and the 10 bit aliases.
...
| Also, even if the VGA I/O Space overlaps the I/O space of another
| PCI bus, only the PCI bus with its VGA Enable bit set will respond
| to these ranges.

Just remember it may not work at all or fail in some wierd way.
If if doesn't work, don't ask me since I won't know either.


> If so, this could probably
> be made to work with enough kernel support.  I'm working on some
> similar stuff for ia64.

Note that pa8800 boxes also use ZX1 chipset. Please keep
parisc-linux cc'd on any patches you cook up for this.

thanks again ,
grant
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Subject: Re: [parisc-linux] Re: [RFC] Emit OPD reloc for all global symbols
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On Mon, Jun 20, 2005 at 03:46:10PM -0700, H. J. Lu wrote:
> > Regardless of wether or not I export all global symbols in main, I must
> > still emit OPD relocs in the executable for all dynamic symbols. In the
> 						^^^^^^^^^^
> 
> Did you mean dynamic or global? There is a big difference. In your
> proposal, you said "We want to generate a PLABEL32 (OPD reloc) against
> all global symbols,". I am not familiar with HPPA. I just want to know
> what you have in mind.

Sorry for being sloppy, there is a qualifier in my mind that I keep
forgetting to write, read the following:

ld must emit an OPD reloc in the executable for each global symbol that
had an OPD reloc to begin with. This way the dynamic loader can assign
an OPD at runtime for use in a comparison. Dynamic symbols that had an
OPD reloc should also emit the reloc in the executable.

Previously an executable just pointed the OPD data word for global and 
dynamic symbols at their associated .plt entries (since .plt entries
like on ia64 are function descriptors). No OPD reloc emitted. Thus the
address of the OPD was really the address of the .plt entry.

This meant that if you passed the address of a dynamic symbol to a shared
library function, from which the symbol came from, the two addresses
would be different. One would point to the executables .plt entry for
that dynamic symbol, while the shared library would have an OPD for that
symbol. The ip/gp of both would be the same though (after resolution of
the .plt that is).

The shared case in hppa was always different, and a DSO has always
created OPD relocs against symbols that started with OPD relocs.
 
> > past the OPD reloc was "fudged" and pointed at the PLT, and this is not
> > a satisfactory situation. I want ld.so.1 to generate the OPD so we no
> > longer need gcc to emit the __cffc helper function for comparisons.

Calling through the .plt is still faster than calling through an OPD.
You can still call through an OPD using $dyncall in hppa.
Thus we probably want to keep the .plt entry even though we are creating
an OPD that could be used to call through.

---

I'm still a bit wet behind the ears, and I fumble the terminology, so
please accept my apologies.

c.

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Subject: Re: [parisc-linux] Re: [RFC] Emit OPD reloc for all global symbols
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> On Mon, Jun 20, 2005 at 03:46:10PM -0700, H. J. Lu wrote:
> > > Regardless of wether or not I export all global symbols in main, I must
> > > still emit OPD relocs in the executable for all dynamic symbols. In the
> > 						^^^^^^^^^^
> > 
> > Did you mean dynamic or global? There is a big difference. In your
> > proposal, you said "We want to generate a PLABEL32 (OPD reloc) against
> > all global symbols,". I am not familiar with HPPA. I just want to know
> > what you have in mind.
> 
> Sorry for being sloppy, there is a qualifier in my mind that I keep
> forgetting to write, read the following:
> 
> ld must emit an OPD reloc in the executable for each global symbol that
> had an OPD reloc to begin with. This way the dynamic loader can assign
> an OPD at runtime for use in a comparison. Dynamic symbols that had an
> OPD reloc should also emit the reloc in the executable.

There is a difference between ia32 and hppa.  As you note, global
symbols are not automatically exported on ia32, even when the symbol
is used in a function-pointer comparison.  This is possible because
ia32 doesn't use function descriptors.

However, on hppa, GCC generates a PLABEL32 relocation when a function
symbol is used in a comparison.  If this relocation resolves to a
non-unique function descriptor in the PLT, then we get comparison
errors when symbols get passed between shared and main for comparison.
As a result, hpux and linux currently have magic functions to
canonicalize function pointers.  Aside from this being inefficient,
it also causes issues for building kernel software (i.e., canonicalization
is only applicable to user space).

Having the PLABEL32 relocation resolve to an OPD appears to require
that the symbol be exported.  As a result, we have a different behaviors
for dlsym on hppa and ia32.  What's ia64 do?

Under hpux, in a 32-bit link or a +compat mode 64-bit link, ld marks
only those symbols symbols that are actually referenced by a shared
library seen at link time for export.  In a 64-bit +std link, all symbols
are exported by default.  However, explicitly exporting symbols has
the side effect that the symbols will not be removed when using dead
code elimination.

>>From my standpoint, I would like to see the same behavior for both
32 and 64-bit links when hppa linux supports both 32 and 64-bit 
user spaces.  The original linux implementation was modelled on hpux
but over the years we have found that hpux compatibility isn't
important.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:22792

Hello Grant,

2 small stuff:
    o testing the following patch on my d380, I just figure out that (by
accident ;-) ) 2.6.12-pa1 was working in _smp_  ;-)
      (it compiled 2 kernels (a 32 and a 64bit) in the same time in two d=
ifferent
fs during more then 2h 
       without neither smp error messages nor hanging ;-)
      may be a better basis to test Ingo stuff (if you have new patches t=
o
make me test)?

    o some additional ccio-dma stuff I would like to submit you (if you s=
till
have some time):
 --- drivers/parisc/ccio-dma.c.Orig      2005-06-21 17:15:16.000000000 +0=
200
+++ drivers/parisc/ccio-dma.c   2005-06-21 17:19:46.000000000 +0200
@@ -226,14 +226,16 @@
 */
 
 struct ioc {
-       struct ioa_registers __iomem *ioc_regs;  /* I/O MMU base address
*/
-       u8  *res_map;                   /* resource map, bit =3D=3D pdir =
entry
*/
-       u64 *pdir_base;                 /* physical base address */
-       u32 pdir_size;                  /* bytes, function of IOV Space s=
ize
*/
-       u32 res_hint;                   /* next available IOVP - 
+       struct ioa_registers
+               __iomem *ioc_regs;      /* I/O MMU base address */
+       unsigned char   *res_map;       /* resource map, bit =3D=3D pdir =
entry
*/
+       u64             *pdir_base;     /* physical base address */
+       unsigned int     pdir_size;     /* bytes, function of IOV Space s=
ize
*/
+       unsigned long    res_hint;      /* next available IOVP - 
                                           circular search */
-       u32 res_size;                   /* size of resource map in bytes
*/
-       spinlock_t res_lock;
+       spinlock_t       res_lock;
+       unsigned int     res_size;      /* size of resource map in bytes
*/
+       unsigned int     res_bitshift;  /* from the LEFT! */
 
 #ifdef CCIO_SEARCH_TIME
 #define CCIO_SEARCH_SAMPLE 0x100
@@ -302,7 +304,7 @@
        for(; res_ptr < res_end; ++res_ptr) { \
                if(0 =3D=3D (*res_ptr & mask)) { \
                        *res_ptr |=3D mask; \
-                       res_idx =3D (unsigned int)((unsigned long)res_ptr=
 -
(unsigned long)ioc->res_map); \
+                       res_idx =3D ((unsigned long)res_ptr - (unsigned l=
ong)ioc->res_map);
\
                        ioc->res_hint =3D res_idx + (size >> 3); \
                        goto resource_found; \
                } \
@@ -341,14 +343,16 @@
 static int
 ccio_alloc_range(struct ioc *ioc, size_t size)
 {
-       unsigned int pages_needed =3D size >> IOVP_SHIFT;
-       unsigned int res_idx;
+       unsigned int    pages_needed;
+       unsigned long   res_idx;
 #ifdef CCIO_SEARCH_TIME
        unsigned long cr_start =3D mfctl(16);
 #endif
 
+       pages_needed =3D size >> IOVP_SHIFT;
+
        BUG_ON(pages_needed =3D=3D 0);
-       BUG_ON((pages_needed * IOVP_SIZE) > DMA_CHUNK_SIZE);
+       BUG_ON(pages_needed > BITS_PER_LONG);
      
        DBG_RES("%s() size: %d pages_needed %d\n", 
                __FUNCTION__, size, pages_needed);
@@ -383,12 +387,11 @@
                CCIO_FIND_FREE_MAPPING(ioc, res_idx, ~0UL, 64);
 #endif
        } else {
-               panic("%s: %s() Too many pages to map. pages_needed: %u\n=
",
-                      __FILE__,  __FUNCTION__, pages_needed);
+               panic("%s() Too many pages to map. pages_needed: %u\n",
+                      __FUNCTION__, pages_needed);
        }
 
-       panic("%s: %s() I/O MMU is out of mapping resources.\n", __FILE__=
,
-             __FUNCTION__);
+       panic("%s() I/O MMU is out of mapping resources.\n", __FUNCTION__=
);
 
 resource_found:
 
@@ -435,7 +438,6 @@
        unsigned int res_idx =3D PDIR_INDEX(iovp) >> 3;
 
        BUG_ON(pages_mapped =3D=3D 0);
-       BUG_ON((pages_mapped * IOVP_SIZE) > DMA_CHUNK_SIZE);
        BUG_ON(pages_mapped > BITS_PER_LONG);
 
        DBG_RES("%s():  res_idx: %d pages_mapped %d\n", 
=3D=3D=3D=3D<>=3D=3D=3D=3D

As previoulsy said, tested with success on d380 smp 32bit kernel (the 64b=
it
twin is ongoing to be compiled...)

Thanks in advance,
    Joel


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Subject: Re: [parisc-linux] Re: [RFC] Emit OPD reloc for all global symbols
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"John David Anglin" <dave@hiauly1.hia.nrc.ca> writes:

> Having the PLABEL32 relocation resolve to an OPD appears to require
> that the symbol be exported.  As a result, we have a different behaviors
> for dlsym on hppa and ia32.  What's ia64 do?

hppa needs to be fixed to implement correct variants of the macros in
dl-lookupcfg.h.  It probably just has to copy the definitions of
DL_FIXUP_* from sysdeps/ia64/dl-lookupcfg.h, and
_dl_runtime_{resolve,profile} has to be adapted accordingly.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstrae 5, 90409 Nrnberg, Germany
Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."
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Subject: Re: [parisc-linux] Re: [RFC] Emit OPD reloc for all global symbols
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On Tue, Jun 21, 2005 at 11:21:58AM -0400, John David Anglin wrote:
> >From my standpoint, I would like to see the same behavior for both
> 32 and 64-bit links when hppa linux supports both 32 and 64-bit 
> user spaces.

Yeah, that would make sense.

>   The original linux implementation was modelled on hpux
> but over the years we have found that hpux compatibility isn't
> important.

When I first got involved in parisc-linux in 1999, there was
an interest in commercializing parisc-linux. That would
mean investing several million dollars per year on a team
to support/test parisc-linux *and* compatibility (where possible)
with hpux so customers could run smaller apps on both.
HP chose not to do that (it was a very rational decision
though personally disappointing).  parisc-linux did not get
commercialized and the developer community around parisc-linux
is not interested in HPUX compatibility.

If someone is interested in HPUX application compatibility,
they better start providing parisc-linux kernel patches this year.
An ABI compatibility event in the tool chain would be sufficient
reason for me to rip out the broken HPUX compatibility
support currently in the parisc-linux source tree.
So far, I've lobbied to keep HPUX app support in the tree with
the hope we could someday run the HPUX X11 server (3D HW Accel!).
But the right people haven't volunteered to make that work.

grant
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> "John David Anglin" <dave@hiauly1.hia.nrc.ca> writes:
> 
> > Having the PLABEL32 relocation resolve to an OPD appears to require
> > that the symbol be exported.  As a result, we have a different behaviors
> > for dlsym on hppa and ia32.  What's ia64 do?
> 
> hppa needs to be fixed to implement correct variants of the macros in
> dl-lookupcfg.h.  It probably just has to copy the definitions of
> DL_FIXUP_* from sysdeps/ia64/dl-lookupcfg.h, and
> _dl_runtime_{resolve,profile} has to be adapted accordingly.

There could be problems here but it seems that hppa is exporting
all global symbols in .dynsym.

Regarding the patch, I'm not sure why but it seems to result in
more R_PARISC_NONE dynamic relocation records (one for each real
dynamic relocation?).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: [RFC] Emit OPD reloc for all global symbols
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On Tue, Jun 21, 2005 at 04:26:46PM -0400, John David Anglin wrote:
> > "John David Anglin" <dave@hiauly1.hia.nrc.ca> writes:
> > 
> > > Having the PLABEL32 relocation resolve to an OPD appears to require
> > > that the symbol be exported.  As a result, we have a different behaviors
> > > for dlsym on hppa and ia32.  What's ia64 do?
> > 
> > hppa needs to be fixed to implement correct variants of the macros in
> > dl-lookupcfg.h.  It probably just has to copy the definitions of
> > DL_FIXUP_* from sysdeps/ia64/dl-lookupcfg.h, and
> > _dl_runtime_{resolve,profile} has to be adapted accordingly.
> 
> There could be problems here but it seems that hppa is exporting
> all global symbols in .dynsym.

Why does hppa do that? A global symbol in executable should be exported
only if it is referenced by a DSO or --export-dynamic is used.

> 
> Regarding the patch, I'm not sure why but it seems to result in
> more R_PARISC_NONE dynamic relocation records (one for each real
> dynamic relocation?).
> 

IA64 also uses function descriptors. Everything works fine.


H.J.
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Subject: Re: [parisc-linux] Re: [RFC] Emit OPD reloc for all global symbols
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On Mon, Jun 20, 2005 at 10:44:40PM -0400, Carlos O'Donell wrote:
> On Mon, Jun 20, 2005 at 03:46:10PM -0700, H. J. Lu wrote:
> > > Regardless of wether or not I export all global symbols in main, I must
> > > still emit OPD relocs in the executable for all dynamic symbols. In the
> > 						^^^^^^^^^^
> > 
> > Did you mean dynamic or global? There is a big difference. In your
> > proposal, you said "We want to generate a PLABEL32 (OPD reloc) against
> > all global symbols,". I am not familiar with HPPA. I just want to know
> > what you have in mind.
> 
> Sorry for being sloppy, there is a qualifier in my mind that I keep
> forgetting to write, read the following:
> 
> ld must emit an OPD reloc in the executable for each global symbol that
> had an OPD reloc to begin with. This way the dynamic loader can assign
> an OPD at runtime for use in a comparison. Dynamic symbols that had an
> OPD reloc should also emit the reloc in the executable.
> 
> Previously an executable just pointed the OPD data word for global and 
> dynamic symbols at their associated .plt entries (since .plt entries
> like on ia64 are function descriptors). No OPD reloc emitted. Thus the
> address of the OPD was really the address of the .plt entry.
> 
> This meant that if you passed the address of a dynamic symbol to a shared
> library function, from which the symbol came from, the two addresses
> would be different. One would point to the executables .plt entry for
> that dynamic symbol, while the shared library would have an OPD for that
> symbol. The ip/gp of both would be the same though (after resolution of
> the .plt that is).
> 
> The shared case in hppa was always different, and a DSO has always
> created OPD relocs against symbols that started with OPD relocs.
>  
> > > past the OPD reloc was "fudged" and pointed at the PLT, and this is not
> > > a satisfactory situation. I want ld.so.1 to generate the OPD so we no
> > > longer need gcc to emit the __cffc helper function for comparisons.
> 
> Calling through the .plt is still faster than calling through an OPD.
> You can still call through an OPD using $dyncall in hppa.
> Thus we probably want to keep the .plt entry even though we are creating
> an OPD that could be used to call through.
> 

Check out SYMBOL_REFERENCES_LOCAL, SYMBOL_CALLS_LOCAL,
elfNN_ia64_dynamic_symbol_p and _bfd_elf_dynamic_symbol_p.



H.J.
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Hello Dave,

John David Anglin wrote:
>>>4.0 has a
>>>new option, -mfixed_range=, that was introduced so that a small range
>>>of fp registers could be used for the xmpyu multiplication insn.  It
>>>might be useful to experiment with this option to see if it useful.
>>
>>I don't know enough about ABI to understand the issues here.
>>AFAIK, we currently are using FP registers because that's
>>the way multiplication is implemented in the integer math libs
>>we inherited.
> 
> 
> No.  Currently in kernel builds, the use of FP registers is completely
> disabled and integer multiplication is done using the millicode library.
> However with a few FP regs, integer multiplication (32 bit) can be
> done in hardware except of course on machines that don't have FP
> hardware.  The downside is that the kernel has to save whatever
> FP registers it uses.
> 
> The -mfixed_range= option "fixes" a range if registers.  GCC won't
> use registers that are fixed.
> 
Sorry to come back so late with this question but what would be the range of fp registers?
or how may I try to define it as accurately as possible?
(I objdump a operating 2.6.12-rc.-pa. 64bit to grep some 'fr[12][0..9]' and all of them seems to be used?
Do I have to look elsewhere; tausq also spoke about: sic
[...]One proposal that has been talked about before is if we can
compile a version of the millicode lib that uses limited fpregs range
and compile the kernel using this new option that Dave is talking about,
then we will be able to get by using a (much) smaller subset of fp regs
and we won't have to save/restore them in the kernel. )

Thanks,
     Joel
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> Sorry to come back so late with this question but what would be the range of fp registers?
> or how may I try to define it as accurately as possible?
> (I objdump a operating 2.6.12-rc.-pa. 64bit to grep some 'fr[12][0..9]' and all of them seems to be used?
> Do I have to look elsewhere; tausq also spoke about: sic
> [...]One proposal that has been talked about before is if we can
> compile a version of the millicode lib that uses limited fpregs range
> and compile the kernel using this new option that Dave is talking about,
> then we will be able to get by using a (much) smaller subset of fp regs
> and we won't have to save/restore them in the kernel. )

/* Parse the -mfixed-range= option string.  */

static void
fix_range (const char *const_str)
{
  int i, first, last;
  char *str, *dash, *comma;

  /* str must be of the form REG1'-'REG2{,REG1'-'REG} where REG1 and
  REG2 are either register names or register numbers.  The effect
  of this option is to mark the registers in the range from REG1 to
  REG2 as ``fixed'' so they won't be used by the compiler.  This is
  used, e.g., to ensure that kernel mode code doesn't use f32-f127.  */

You are probably best to use register names.  There are 28 fp registers
starting at fr4.  The number for fr4 is 32.  I see there is a typo
in the comment regarding the range, "f32-f127".  This is a cut and
paste error.

The millicode routines don't use the fp regs.  However, libgcc does
and the kernel is linked against libgcc.  Thus, for this to work, you
will need to build both a kernel build version of gcc and the kernel
with the -mfixed-range option.  You probably want to leave about four
fp registers unfixed for integer multiplcation.  This is essential on
hppa64 as we don't have millicode support for 64-bit integer
multiplication.  This support is provided by libgcc routines.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> that should be fixed after the next gcc-defaults upload.

As I noted previously, there seems to be a packaging issue with
gcc-3.4.  It only seems to install the 64-bit compiler driver:

/usr/bin/hppa64-linux-gcc-3.4

I also haven't seen 4.0.0 yet.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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On Wed, Jun 22, 2005 at 07:54:54PM +0000, Joel Soete wrote:
> of fp registers?
> or how may I try to define it as accurately as possible?
> (I objdump a operating 2.6.12-rc.-pa. 64bit to grep some 'fr[12][0..9]' and 
> all of them seems to be used?

Of course they will all be used - kernel has to save and restore
process state when switching context. You have to look at each
use and determine why FP is being used. There shouldn't
be that many different uses.

> Do I have to look elsewhere; tausq also spoke about: sic
> [...]One proposal that has been talked about before is if we can
> compile a version of the millicode lib that uses limited fpregs range
> and compile the kernel using this new option that Dave is talking about,
> then we will be able to get by using a (much) smaller subset of fp regs
> and we won't have to save/restore them in the kernel. )

That's correct - but we will still have to save/restore all FP regs
on a general context switch - just a subset of those when
entering/leaving the kernel (e.g. handling an external interrupt).

grant
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From: Carlos O'Donell <carlos@systemhalted.org>
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Subject: Re: [parisc-linux] Re: [RFC] Emit OPD reloc for all global symbols
	and then some.
Date: Wed, 22 Jun 2005 17:59:02 -0400
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On Tue, Jun 21, 2005 at 06:09:43PM +0200, Andreas Schwab wrote:
> "John David Anglin" <dave@hiauly1.hia.nrc.ca> writes:
> 
> > Having the PLABEL32 relocation resolve to an OPD appears to require
> > that the symbol be exported.  As a result, we have a different behaviors
> > for dlsym on hppa and ia32.  What's ia64 do?
> 
> hppa needs to be fixed to implement correct variants of the macros in
> dl-lookupcfg.h.  It probably just has to copy the definitions of
> DL_FIXUP_* from sysdeps/ia64/dl-lookupcfg.h, and
> _dl_runtime_{resolve,profile} has to be adapted accordingly.

We have the correct variants implemented.

http://cvs.parisc-linux.org/glibc/sysdeps/hppa/dl-lookupcfg.h?rev=1.3&view=markup

Upstream glibc is not a good indicator of the status of our port.
I am trying to merge as much as I can upstream.

c.


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From: Carlos O'Donell <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: [RFC] Emit OPD reloc for all global symbols
Date: Wed, 22 Jun 2005 18:03:31 -0400
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Cc: Andreas Schwab <schwab@suse.de>,
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Tue, Jun 21, 2005 at 04:26:46PM -0400, John David Anglin wrote:
> > "John David Anglin" <dave@hiauly1.hia.nrc.ca> writes:
> > 
> > > Having the PLABEL32 relocation resolve to an OPD appears to require
> > > that the symbol be exported.  As a result, we have a different behaviors
> > > for dlsym on hppa and ia32.  What's ia64 do?
> > 
> > hppa needs to be fixed to implement correct variants of the macros in
> > dl-lookupcfg.h.  It probably just has to copy the definitions of
> > DL_FIXUP_* from sysdeps/ia64/dl-lookupcfg.h, and
> > _dl_runtime_{resolve,profile} has to be adapted accordingly.
> 
> There could be problems here but it seems that hppa is exporting
> all global symbols in .dynsym.
> 
> Regarding the patch, I'm not sure why but it seems to result in
> more R_PARISC_NONE dynamic relocation records (one for each real
> dynamic relocation?).

I'm not sure why there are extra R_PARISC_NONE relocs, I was sure I had
fixed this problem. There was a ref counting issue before, but I should
review this.

c.

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Subject: Re: [parisc-linux] Re: [RFC] Emit OPD reloc for all global symbols
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On Wed, Jun 22, 2005 at 06:38:28AM -0700, H. J. Lu wrote:
> On Tue, Jun 21, 2005 at 04:26:46PM -0400, John David Anglin wrote:
> > > "John David Anglin" <dave@hiauly1.hia.nrc.ca> writes:
> > > 
> > > > Having the PLABEL32 relocation resolve to an OPD appears to require
> > > > that the symbol be exported.  As a result, we have a different behaviors
> > > > for dlsym on hppa and ia32.  What's ia64 do?
> > > 
> > > hppa needs to be fixed to implement correct variants of the macros in
> > > dl-lookupcfg.h.  It probably just has to copy the definitions of
> > > DL_FIXUP_* from sysdeps/ia64/dl-lookupcfg.h, and
> > > _dl_runtime_{resolve,profile} has to be adapted accordingly.
> > 
> > There could be problems here but it seems that hppa is exporting
> > all global symbols in .dynsym.
> 
> Why does hppa do that? A global symbol in executable should be exported
> only if it is referenced by a DSO or --export-dynamic is used.

Legacy behaviour. Does an ia64 hpux system also export main in .dynsms?
 
> > 
> > Regarding the patch, I'm not sure why but it seems to result in
> > more R_PARISC_NONE dynamic relocation records (one for each real
> > dynamic relocation?).
> > 
> 
> IA64 also uses function descriptors. Everything works fine.

This sort of behaviour is architecture dependant. We have problems in
our implementation, and we are trying to fix them :)

c.

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Subject: [parisc-linux] [OT] Emit OPD reloc (HPUX compatibility)
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On Tue, Jun 21, 2005 at 10:14:31AM -0600, Grant Grundler wrote:
> On Tue, Jun 21, 2005 at 11:21:58AM -0400, John David Anglin wrote:
> > >From my standpoint, I would like to see the same behavior for both
> > 32 and 64-bit links when hppa linux supports both 32 and 64-bit 
> > user spaces.
> 
> Yeah, that would make sense.
> 
> >   The original linux implementation was modelled on hpux
> > but over the years we have found that hpux compatibility isn't
> > important.
> 
> When I first got involved in parisc-linux in 1999, there was
> an interest in commercializing parisc-linux. That would
> mean investing several million dollars per year on a team
> to support/test parisc-linux *and* compatibility (where possible)
> with hpux so customers could run smaller apps on both.
> HP chose not to do that (it was a very rational decision
> though personally disappointing).  parisc-linux did not get
> commercialized and the developer community around parisc-linux
> is not interested in HPUX compatibility.
> 
> If someone is interested in HPUX application compatibility,
> they better start providing parisc-linux kernel patches this year.
> An ABI compatibility event in the tool chain would be sufficient
> reason for me to rip out the broken HPUX compatibility
> support currently in the parisc-linux source tree.
> So far, I've lobbied to keep HPUX app support in the tree with
> the hope we could someday run the HPUX X11 server (3D HW Accel!).
> But the right people haven't volunteered to make that work.

This is completely orthogonal, but I think that supporting the HPUX X11
server is a pipe dream.

Simple HPUX applications will run. Anything more than that is going to
require a *lot* of work. And a lot of documentation that will never be
made available.

My personal goal is to be as compatible with other linux ports as
possible, offering everything that they also offer.

e.g. TLS, NPTL ... and more.

c.

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> -- Original Message --
> Date: Wed, 22 Jun 2005 23:27:53 -0600
> From: Grant Grundler <grundler@parisc-linux.org>
> To: Joel Soete <soete.joel@tiscali.be>
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] [gcc] should we teach gcc some new tricks?
> 
> 
> On Wed, Jun 22, 2005 at 07:54:54PM +0000, Joel Soete wrote:
> > of fp registers?
> > or how may I try to define it as accurately as possible?
> > (I objdump a operating 2.6.12-rc.-pa. 64bit to grep some 'fr[12][0..9=
]'
> and 
> > all of them seems to be used?
> 
> Of course they will all be used - kernel has to save and restore
> process state when switching context.
Oops I missed it (my bad)

> You have to look at each
> use and determine why FP is being used. There shouldn't
> be that many different uses.
> 
Thanks for enlightenment,

I still have to make a lot of progress ;-)

> > Do I have to look elsewhere; tausq also spoke about: sic
> > [...]One proposal that has been talked about before is if we can
> > compile a version of the millicode lib that uses limited fpregs range=

> > and compile the kernel using this new option that Dave is talking abo=
ut,
> > then we will be able to get by using a (much) smaller subset of fp re=
gs
> > and we won't have to save/restore them in the kernel. )
> 
> That's correct - but we will still have to save/restore all FP regs
> on a general context switch - just a subset of those when
> entering/leaving the kernel (e.g. handling an external interrupt).
> 
Thanks,
    Joel


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On Wed, Jun 22, 2005 at 11:42:23PM -0400, John David Anglin wrote:
> gcc-3.4.  It only seems to install the 64-bit compiler driver:
> 
> /usr/bin/hppa64-linux-gcc-3.4
> 
> I also haven't seen 4.0.0 yet.

I believe this is because the gcc-defaults package is currently 
set for the sarge default, which means gcc 3.3. I imagine a new
upload is coming soon that will change the default compiler
to 3.4 or 4.0 soon.

Cheers,
-- 
Kyle McMartin


-- 
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> And effectively with -mdisable-fpregs option a function like <do_setitimer>
> (amoung others) used __muldi3 as in:
> [...]
> 1012b630:       e8 4b 01 61     b,l 101016e8 <__muldi3>,rp
> [...]
> 1012b650:       e8 4b 01 21     b,l 101016e8 <__muldi3>,rp
> 1012b654:       08 03 02 5a     copy r3,r26
> [...]

The same issue that I mentioned previously applies to -mdisable-fpregs.
__muldi3 and similar routines in libgcc use fp regs and the xmpyu for
64-bit multiplation.  It takes two 32-bit values and produces a 64-bit
result.  In millicode, we can multiple to 32 bit values and produce a
32-bit result.  This isn't sufficient to implement __muldi3.  GCC needs
a pattern to duplicate xmpyu using millicode.  This could be done by
"long" multiplication.  Break the 32-bit values into two 16-bit chunks
and use the millicode multiply.

HPUX has millicode routines to do larger multiplication but these
routines weren't released.

I'm a bit surprised that 32-bit kernels needs 64-bit multiplication.
Anyway, xmpyu is much more efficient for multiplication than software.
Possibly, I should look at using the -mfixed-range option when building
libgcc as a first step.  Looking at libgcc, I think it needs fr4, fr5
and fr22-fr26.  __mulvdi3 needs the most registers.  The argument
registers are needed for some floating point conversion routines.
I doubt the kernel uses these.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] new debian binutils-hppa64, r=2.15-7 pb?
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On Thu, Jun 23, 2005 at 09:13:42AM -0400, John David Anglin wrote:
> I was hoping that these packages should be installable even if
> there aren't the default.
> 
> There seems to be a 3.5 package that probably should be removed.

Odd... If you have them both (3.4 and 4.0) installed, you should be able 
to run "update-alternatives --config hppa64-linux-gcc" to choose which
you'd like to be the default. I'm not sure off hand why 3.3 doesn't
show up this way, but I suspect it may have not used the alternatives
system.

Cheers,
-- 
Kyle McMartin
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Subject: Re: [parisc-linux] [gcc] should we teach gcc some new tricks?
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...
>
> /* Parse the -mfixed-range=3D option string.  */
>
> static void
> fix_range (const char *const_str)
> {
>   int i, first, last;
>   char *str, *dash, *comma;
>
>   /* str must be of the form REG1'-'REG2{,REG1'-'REG} where REG1 and
>   REG2 are either register names or register numbers.  The effect
>   of this option is to mark the registers in the range from REG1 to
>   REG2 as ``fixed'' so they won't be used by the compiler.  This is
>   used, e.g., to ensure that kernel mode code doesn't use f32-f127.  */=

>
That confirms well the gcc info description:
`-mfixed-range=3DREGISTER-RANGE'
      Generate code treating the given register range as fixed registers.=

      A fixed register is one that the register allocator can not use.
      This is useful when compiling kernel code. A register range is
      specified as two registers separated by a dash. Multiple register
      ranges can be specified separated by a comma.
 ;-)

> You are probably best to use register names.
I would prefer too.

> There are 28 fp registers
> starting at fr4.  The number for fr4 is 32.  I see there is a typo
> in the comment regarding the range, "f32-f127".  This is a cut and
> paste error.
>
Nice add on (tx),

> The millicode routines don't use the fp regs.  However, libgcc does
> and the kernel is linked against libgcc.  Thus, for this to work, you
> will need to build both a kernel build version of gcc and the kernel
> with the -mfixed-range option.  You probably want to leave about four
> fp registers unfixed for integer multiplcation.  This is essential on
> hppa64 as we don't have millicode support for 64-bit integer
> multiplication.  This support is provided by libgcc routines.
>
my main interest is still 32bit kernel  for the moment(the most of my sys=
tems
 b180,  c110, d380 ;-)):
2.6.8 ans 2.6.9-rc2-pa1 works fine when compiled with -mdisable-fpregs op=
tion
but panicing quickly whitout?

And effectively with -mdisable-fpregs option a function like <do_setitime=
r>
(amoung others) used __muldi3 as in:
[...]
1012b630:       e8 4b 01 61     b,l 101016e8 <__muldi3>,rp
[...]
1012b650:       e8 4b 01 21     b,l 101016e8 <__muldi3>,rp
1012b654:       08 03 02 5a     copy r3,r26
[...]

while without it obviously compile something like:
[...]
1012ba00:       27 88 10 16     fldw 4(,ret0),fr22
1012ba04:       30 00 40 16     fcpy,sgl fr0,fr22
1012ba08:       37 b6 1c 29     ldo -11ec(ret1),r22
1012ba0c:       22 bc 8d 1a     ldil 68db8000,r21
1012ba10:       27 c1 12 16     fstw fr22,-10(,sp)
1012ba14:       36 b8 17 5a     ldo bad(r21),r24
1012ba18:       34 01 1f fe     ldi fff,r1
1012ba1c:       34 02 3f ff     ldi -1,rp
1012ba20:       22 a6 22 06     ldil 1030d000,r21
1012ba24:       0f c1 10 93     ldw -10(,sp),r19
1012ba28:       36 b5 09 a0     ldo 4d0(r21),r21
1012ba2c:       2e a0 10 17     fldd 0(,r21),fr23
1012ba30:       d2 77 1c 1f     extrw,s r19,0,1,r23
1012ba34:       3a d7 57 17     xmpyu fr22,fr23R,fr23
1012ba38:       0b 17 02 17     and r23,r24,r23
1012ba3c:       2f c1 12 17     fstd fr23,-10(,sp)
[...]

But that doesn't make me yet understand what it could make as side effect=

versus
the 64bit twin kernel??

I still have to learn more ;-)

Thanks a lot,
    Joel


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Subject: Re: [parisc-linux] new debian binutils-hppa64, r=2.15-7 pb?
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Cc: Kyle McMartin <kyle@there.is.no.cabal.ca>,
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To: "Matthias Klose" <doko@cs.tu-berlin.de>
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Hello Matthias,

[...]
>
> that should be fixed after the next gcc-defaults upload.
>
just update:
[...]
Setting up gcc-3.3-hppa64 (3.3.6-7) ...
[...]

and just noticed a small pb while re-compiling the kernel:
make is still looking for hppa64-linux-gcc

/usr/src/linux-2.6.12-pa1-050620/scripts/gcc-version.sh: line 11: hppa64-=
linux-gcc:
command not found

this coming from:
# cd /usr/bin; ls -l hppa64*
lrwxr-xr-x  1 root root     34 Dec 22  2004 hppa64-linux-gcc -> /etc/alte=
rnatives/hppa64-linux-gcc
[...]

unfortunately this alternative is not updated and still point to:
/etc/alternatives/hppa64-linux-gcc -> /usr/bin/hppa64-linux-gcc-3.3

in place of the new hppa64-linux-gnu-gcc-3.3.

Oops: still a small pb:
[...]
make -f /usr/src/linux-2.6.12-pa1-050620/scripts/Makefile.build obj=3Dfs/=
autofs4
   rm -f fs/autofs4/built-in.o; hppa64-linux-ar rcs fs/autofs4/built-in.o=

/bin/sh: hppa64-linux-ar: command not found
make[3]: *** [fs/autofs4/built-in.o] Error 127

Thanks for your attention,
    Joel






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On Mon, Jun 20, 2005 at 08:06:05PM -0600, Grant Grundler wrote:
> ie a "directed range" could be programmed to redirect accesses from
> MMIO space to a particular Elroy. Requires programming a directed
> range in Astro and a matched "Extra LMMIO" range in Elroy.
> I've never messed with this and always depended on firmware
> to deal with range registers.
>

I've been looking at the Astro and Elroy ERS trying to understand
this. Does this mean that even if the "VGA Enable" logic is broken,
we could still force VGA accesses to be routed to a specific PCI 
device, or are we out of luck?

If it's feasible, I'm willing to take some time to look into this.

Cheers,
-- 
Kyle McMartin
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Subject: Re: [parisc-linux] Re: Trident video card caused Kernel Panic on HP
	Visualize 785/B2000 with rebuilt 2.6.11-rc6-pa1 kernel
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On Thu, Jun 23, 2005 at 02:59:25PM -0400, Kyle McMartin wrote:
> > ie a "directed range" could be programmed to redirect accesses from
> > MMIO space to a particular Elroy. Requires programming a directed
> > range in Astro and a matched "Extra LMMIO" range in Elroy.
> > I've never messed with this and always depended on firmware
> > to deal with range registers.
> >
> 
> I've been looking at the Astro and Elroy ERS trying to understand
> this. Does this mean that even if the "VGA Enable" logic is broken,
> we could still force VGA accesses to be routed to a specific PCI 
> device, or are we out of luck?

We can force any MMIO accesses to any rope with "Directed Ranges" on Astro.
We can NOT force IO Port accesses to anything.

> If it's feasible, I'm willing to take some time to look into this.

I'm not sure it's "feasible" unless we can get around IO Port space
routing issues.

grant

> 
> Cheers,
> -- 
> Kyle McMartin
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Subject: Re: [parisc-linux] Re: Trident video card caused Kernel Panic on HP
	Visualize 785/B2000 with rebuilt 2.6.11-rc6-pa1 kernel
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On Thursday 23 June 2005 1:09 pm, Grant Grundler wrote:
> On Thu, Jun 23, 2005 at 02:59:25PM -0400, Kyle McMartin wrote:
> > > ie a "directed range" could be programmed to redirect accesses from
> > > MMIO space to a particular Elroy. Requires programming a directed
> > > range in Astro and a matched "Extra LMMIO" range in Elroy.
> > > I've never messed with this and always depended on firmware
> > > to deal with range registers.
> > >
> > 
> > I've been looking at the Astro and Elroy ERS trying to understand
> > this. Does this mean that even if the "VGA Enable" logic is broken,
> > we could still force VGA accesses to be routed to a specific PCI 
> > device, or are we out of luck?
> 
> We can force any MMIO accesses to any rope with "Directed Ranges" on Astro.
> We can NOT force IO Port accesses to anything.
> 
> > If it's feasible, I'm willing to take some time to look into this.
> 
> I'm not sure it's "feasible" unless we can get around IO Port space
> routing issues.

If the IO port routing is broken, I don't know whether we can do
anything useful.  X emulates the option ROM to initialize the card,
and the ROM typically does IO port accesses that have to appear on
the bus as accesses in the 0x3b0-0x3df range.

Even without Astro VGA routing, the emulator or kernel could remap
those accesses so they get routed to the correct bus.  But that's
not enough, because then they won't appear on the bus in the
0x3b0-0x3df range that the card is expecting.
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Subject: Re: [parisc-linux] Re: Trident video card caused Kernel Panic on HP
	Visualize 785/B2000 with rebuilt 2.6.11-rc6-pa1 kernel
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On Thu, Jun 23, 2005 at 01:24:21PM -0600, Bjorn Helgaas wrote:
> > I'm not sure it's "feasible" unless we can get around IO Port space
> > routing issues.
> 
> If the IO port routing is broken, I don't know whether we can do
> anything useful.  X emulates the option ROM to initialize the card,
> and the ROM typically does IO port accesses that have to appear on
> the bus as accesses in the 0x3b0-0x3df range.

On parisc the emulator would have to call into the Elroy PCI
support (drivers/parisc/lba_pci.c) to generate the IO port accesses.
Ie parisc has no "load/store IO Port space" instructions.
It all has to be done by directly poking the Elroy registers
on the right elroy.

IA64 could do this as well but doesn't have an "lba_pci.c" driver.
Everything is "nicely" encapsulate by SAL calls and IA64 can
directly generate IO Port space load/stores (in/out) so it
wouldn't normally need a PCI Host Bus controller driver.


> Even without Astro VGA routing, the emulator or kernel could remap
> those accesses so they get routed to the correct bus.  But that's
> not enough, because then they won't appear on the bus in the
> 0x3b0-0x3df range that the card is expecting.

Given the above, we can poke any value we want in to the Elroy registers
in order to generate the right IO port space addresses.


grant
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Subject: Re: [parisc-linux] Re: Trident video card caused Kernel Panic on HP
	Visualize 785/B2000 with rebuilt 2.6.11-rc6-pa1 kernel
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On Thursday 23 June 2005 2:18 pm, Grant Grundler wrote:
> On parisc the emulator would have to call into the Elroy PCI
> support (drivers/parisc/lba_pci.c) to generate the IO port accesses.
> Ie parisc has no "load/store IO Port space" instructions.
> It all has to be done by directly poking the Elroy registers
> on the right elroy.

> > Even without Astro VGA routing, the emulator or kernel could remap
> > those accesses so they get routed to the correct bus.  But that's
> > not enough, because then they won't appear on the bus in the
> > 0x3b0-0x3df range that the card is expecting.
> 
> Given the above, we can poke any value we want in to the Elroy registers
> in order to generate the right IO port space addresses.

Hmmm....  very interesting idea.  The hook is already there
(ia64_pci_legacy_read() is an example for ia64), so parisc
could implement something similar that poked Elroy directly.
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Subject: Re: [parisc-linux] Re: Trident video card caused Kernel Panic on HP
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On Thu, Jun 23, 2005 at 02:18:07PM -0600, Grant Grundler wrote:
> > Even without Astro VGA routing, the emulator or kernel could remap
> > those accesses so they get routed to the correct bus.  But that's
> > not enough, because then they won't appear on the bus in the
> > 0x3b0-0x3df range that the card is expecting.
> 
> Given the above, we can poke any value we want in to the Elroy registers
> in order to generate the right IO port space addresses.
> 

Given this, it's probably feasible then to wrap (out|in)X with a
vga_(out|in)X define in each of the drivers and emulate it as best we 
can with Elroy?

Sorry if I'm misunderstanding, this is over my head right now. :)
-- 
Kyle McMartin
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On Thursday 23 June 2005 2:30 pm, Kyle McMartin wrote:
> On Thu, Jun 23, 2005 at 02:18:07PM -0600, Grant Grundler wrote:
> > > Even without Astro VGA routing, the emulator or kernel could remap
> > > those accesses so they get routed to the correct bus.  But that's
> > > not enough, because then they won't appear on the bus in the
> > > 0x3b0-0x3df range that the card is expecting.
> > 
> > Given the above, we can poke any value we want in to the Elroy registers
> > in order to generate the right IO port space addresses.
> 
> Given this, it's probably feasible then to wrap (out|in)X with a
> vga_(out|in)X define in each of the drivers and emulate it as best we 
> can with Elroy?

The part I was talking about is for user-land.  Late last year,
Jesse Barnes added some new files in sysfs (see the bottom of
Documentation/filesystems/sysfs-pci.txt).

At the same time, they added some stuff to X to use these new
sysfs files for access to the legacy MMIO and I/O port ranges.
I don't think this has made it into a released X yet, but it's
in Xorg CVS.

I haven't really looked into the in-kernel accessors.  They'd
probably need work like you mention.  Ben H. proposed a VGA
arbiter that I think would be involved.  But my guess is that
you'd only need something like that if you want the in-kernel
framebuffer driver or something.  With the stuff Jesse added,
X can run the option ROM to initialize any card, so you may
not need the framebuffer drivers.
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> mmm do I well understand that to force gcc to on;y use fr4-f5 and fr22-fr26
> (as do __muldi3), I had to use option:
> cflags-y        += -mfixed-range=fr6-fr21,fr27-fr28

Close, I used the change below.  This seems to build and check ok.
I don't know if it would be possible to cut back another register or not.
If I was going to try, I would add fr26 to the fixed list.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: config/pa/pa.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/pa/pa.c,v
retrieving revision 1.294
diff -u -3 -p -r1.294 pa.c
--- config/pa/pa.c	23 Apr 2005 21:28:33 -0000	1.294
+++ config/pa/pa.c	24 Jun 2005 02:37:47 -0000
@@ -306,7 +306,7 @@ fix_range (const char *const_str)
      REG2 are either register names or register numbers.  The effect
      of this option is to mark the registers in the range from REG1 to
      REG2 as ``fixed'' so they won't be used by the compiler.  This is
-     used, e.g., to ensure that kernel mode code doesn't use f32-f127.  */
+     used, e.g., to ensure that kernel mode code doesn't use fr4-fr31.  */
 
   i = strlen (const_str);
   str = (char *) alloca (i + 1);
Index: config/pa/t-linux
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/pa/t-linux,v
retrieving revision 1.8
diff -u -3 -p -r1.8 t-linux
--- config/pa/t-linux	5 Dec 2002 01:57:27 -0000	1.8
+++ config/pa/t-linux	24 Jun 2005 02:37:47 -0000
@@ -6,7 +6,8 @@ LIB1ASMFUNCS = _divI _divU _remI _remU _
 LIB1ASMSRC = pa/milli64.S
 
 # Compile libgcc2.a as PIC.
-TARGET_LIBGCC2_CFLAGS = -fPIC -DELF=1 -DLINUX=1
+TARGET_LIBGCC2_CFLAGS = -fPIC -DELF=1 -DLINUX=1 \
+  -mfixed-range="fr6-fr21,fr27-fr31"
 
 LIB2FUNCS_EXTRA=fptr.c
 
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John David Anglin wrote:
>>mmm do I well understand that to force gcc to on;y use fr4-f5 and fr22-fr26
>>(as do __muldi3), I had to use option:
>>cflags-y        += -mfixed-range=fr6-fr21,fr27-fr28
> 
> 
> Close, I used the change below.
mmm I definetely have to go back to elementary school (4 + 28 -1 = 31 and not 28, my bad !!!)

>  This seems to build and check ok.
Ok I will try to rebuild libgcc2 and kernel with same options.

Btw 2.6.12-pa1 already build and boot fine with above mentioned options.
Anyway still hanging after 44 min of stress test.

So imho 2 first thinks to do:
	o apply the right 'fixed-range' option
	o apply 2.6.12.1 patch

> I don't know if it would be possible to cut back another register or not.
> If I was going to try, I would add fr26 to the fixed list.
> 
If still not work, the 3rd test I will do ;-)

I will advise.

Thanks again,
     Joel
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Fellow pa-ckers,

Some of you have been wondering whether they'll be able to enjoy quality
music playback on their AD1889-enabled PA-RISC machines one of these days
(BCJ-X000 class machines, basically).

Well, be happy, dance around, that day has come! ;)

The recent commits to the CVS have brought in a now really decent AD1889
driver, supporting full duplex playback and capture.

It works absolutely fine in OSS emulation mode. So far we have a bug with
the ALSA native mode, which produces unintelligible sound.[1]

Oh, don't use mpg123, madplay, ogg123 (and probably anything not properly
catching ctrl-C), because if you interrupt the playback before the end of
the file with Ctrl-C, you'll be playing russian roulette, with
statistically good chances of not surviving it. :)

This could be a bug in our signal handling code, because XMMS works just
fine for instance. sox works fine as well.

So my 2c is "use XMMS" or wait for the EOF in playback, with OSS
emulation, and use sox to record :)

More info at http://wiki.parisc-linux.org/AD1889

[1] For those interested, it appears that if you run something like:

while :; do cat /proc/asound/AD1889/AD1889; done

while playing something in native ALSA mode, it would somehow work. The
above reads registers on the card, but I don't know if that a PCI posting
issue, a timing issue, or something else. It's pretty strange since we
fully comply to the ALSA API (to the best of our knowledge, at least).

HTH

-- 
Thibaut VARENE
The PA/Linux Team
http://wiki.parisc-linux.org/ThibautVarene
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Hello Thibaut.

Congratulations for this big sucess !

I just tried the driver and I think I found a small bug:
- Using xmms (with OSS output driver)
- Headphones connected to the Headphone connector (PhoneOut)
- start playing -> sound starts

Now:
- start on a console "aumix"
- play around with the "Pcm" slider
- when moving this slider from 0-100% it seems to be doubled. 
  You will get the same loadness in the 0-50% range as in the 51-100% range, which means maximum loadness is at 49% and 99%.

Best regards,
Helge

On Sunday 26 June 2005 02:26, Thibaut VARENE wrote:
> Some of you have been wondering whether they'll be able to enjoy quality
> music playback on their AD1889-enabled PA-RISC machines one of these days
> (BCJ-X000 class machines, basically).
> 
> Well, be happy, dance around, that day has come! ;)
> 
> The recent commits to the CVS have brought in a now really decent AD1889
> driver, supporting full duplex playback and capture.
> 
> It works absolutely fine in OSS emulation mode. So far we have a bug with
> the ALSA native mode, which produces unintelligible sound.[1]
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On Sun, Jun 26, 2005 at 03:53:54PM +0100, Stuart Brady wrote:
> I used playmidi for testing.  There are some example MIDI files:
> /usr/share/doc/playmidi/examples/*.mid.gz.  Unfortunately, ALSA's OPL3
> code has some bugs which affect the quality of the music produced.
> Also, playmidi's instruments need some work.
> 
> I was getting silence when testing before, but it otherwise appeared to
> be working.  There's probably a mixer channel associated with the OPL3
> (or SYN, see below) which must be used.  I have no idea which this is.

I forgot to mention -- there seems to be another bug in ALSA: before you
can play anything, you'll have to run:

    cat /proc/asound/seq/clients

I've no idea why, and I haven't got around to reporting it to the ALSA
developers yet.  If you don't do this, you'll see:

    playmidi: No playback device found.

Also, if you try to play the example MIDI files using playmidi, without
gunzipping them first, playmidi will just segfault.

BTW, playmidi produces better sound if it is passed the "-4" option, but
this reduces the number of notes that can be played simultaneously.

You could also try using pmidi, which doesn't rely on OSS emulation,
although this didn't work for me.

If anyone's looking for a more sensible way to play MIDI files, I would
suggest using TiMidity++, which doesn't use OPL3.

Cheers,
-- 
Stuart Brady
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On Sat, Jun 25, 2005 at 06:06:37PM +0000, Joel Soete wrote:
> >It's easier to review if you submit those seperately.
> >Also because I probably wouldn't apply the white space changes. :^)
> >
> >
> >>-       BUG_ON((pages_needed * IOVP_SIZE) > DMA_CHUNK_SIZE);
> >>+       BUG_ON(pages_needed > BITS_PER_LONG);
> >
> >
> >This BUG_ON exists because I was lazy. Alex Williamson added support
> >for "unlimited" sized requests to arch/ia64/hp/common/sba_iommu.c.
> >We might be able to add that to our iommu-helpers.h file.
> >
> mmm is there a viewcvs for ia64 at some url?

Yes, but I expect it in our CVS 2.6.12 source tree.

> (I tried a diff between parisc and ia64 but to big to let me understand 
> what patch was?)

Right - that won't work. You'll have to dredge up the oldmail
were Alex proposes the patch. That should be part of the
ia64-linux mail in ia64-linux mail archives

> >Just ditch __FUNCTION__ and hard code the string in the panic message.
>
> Is there some pb I missed with __FUNCTION__?

Not really - but embedding it directly in the string just makes
less work for gcc.

grant
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From: Thibaut VARENE <T-Bone@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] AD1889 Support (yes it's there!)
Date: Sun, 26 Jun 2005 14:46:33 +0200
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To: Helge Deller <deller@gmx.de>
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On Sun, 26 Jun 2005 10:29:07 +0200
Helge Deller <deller@gmx.de> wrote:

> Hello Thibaut.
> 
> Congratulations for this big sucess !
> 
> I just tried the driver and I think I found a small bug:
> - Using xmms (with OSS output driver)
> - Headphones connected to the Headphone connector (PhoneOut)
> - start playing -> sound starts
> 
> Now:
> - start on a console "aumix"
> - play around with the "Pcm" slider
> - when moving this slider from 0-100% it seems to be doubled. 
>   You will get the same loadness in the 0-50% range as in the 51-100%
>   range, which means maximum loadness is at 49% and 99%.

Good catch, that's indeed another known "feature", all sliders (aside the
Master ones) wrap around at 50%. It's actually quite strange because these
sliders control the AC97 codec which is well documented (it's an AD1819),
and which is out of the scope of this driver (we don't implement our own
mixer). Actually, this is handled directly by the ALSA layer. So maybe the
hardware is not compliant with the specs, or maybe there's some knob
missing, yet, it didn't seem to me like a big deal :)

For the curious people, the difference between the "Master" knobs and the
others, according the the AD1819 codec doc, is that Masters range from 0
to -46.5dB as the value written to register goes from 0x0000h to 0x1F1F
(left is bits 13-8, right is 5-0), and any bigger value doesn't change the
attenuation.

For the other knobs, otoh, the range is +12dB to -34.5dB for left/right,
with the following scheme: 0x0000 is +12dB, 0x0808 is 0dB and 0x1F1F is
-34.5dB. What seems to happen in our case, is that the hardware doesn't
implement the "gain" range, contrary to what the doc says.

Again, this is a well known AC97 codec (AD1819), well documented,
and supported by the ALSA layer, so if you can make sense of what happens,
maybe we could see what's wrong. :)

I'll add that to the wiki.

One last hint (which is on the wiki):

There's no such thing as separate volume control for Phones and Line Out.
Phones is just an amplified wiring of Line Out, and both are
simultaneously controlled by "Master". The internal speaker volume is
controlled by Master Mono.

HTH

Thibaut VARENE
The PA/Linux Team
http://www.pateam.org/



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From: Ullrich Seibel <useibel@bigfoot.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Problem with two NICs on B132L+
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Xref: news.gmane.org gmane.linux.ports.parisc:22826

Hallo,

I've some trouble with my NICs on *two* B132L+ (Digital DS21143 Tulip). 
When I switch-on the power only one of them works fine. The other one 
generates an error message:

    "***WARNING***: No MII transceiver found!"

during the boot process. After rebooting both NICs are running properly. 
I've added the related dmesg log entries.

--- schnipp ---

Linux version 2.6.8-2-32 (kyle@caradhras) (gcc version 3.3.5 (Debian 
1:3.3.5-7)) #1 Tue Feb 8 00:15:05 EST 2005
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005030 00000481 00000000 02020202 77a47330 100000f0 00000004 
000000ba 0
00000ba
vers  00000018
CPUID vers 15 rev 24 (0x000001f8)
capabilities 0x2
model 9000/778/B132L+
Total Memory: 384 Mb
initrd: 27b70000-27fee000
initrd: reserving 17b70000-17fee000 (mem_max 18000000)
On node 0 totalpages: 98304
  DMA zone: 98304 pages, LIFO batch:16
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
LED display at f0190001 registered
Built 1 zonelists
Kernel command line:  root=/dev/sda3 HOME=/ console=tty0 sti=8/24 
sti_font=VGA8
x16 TERM=linux palo_kernel=1/vmlinux
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 393216k available
Calibrating delay loop... 87.85 BogoMIPS
Security Scaffold v1.0.0 initialized
Capability LSM initialized
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
checking if image is initramfs...it isn't (ungzip failed); looks like an 
initrd
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Merlin+ 132 Dino PS/2 Port at 0xfff81000 [1] { 10, 0x0, 0x022, 0x00096 }
2. Phantom PseudoBC GSC+ Port at 0xffc00000 [8] { 7, 0x0, 0x504, 0x00000 }
3. Dino PCI Bridge at 0xfff80000 [8/0] { 13, 0x3, 0x680, 0x0000a },  
additional
 addresses: 0xf0800000
4. Merlin+ 132 Dino RS-232 at 0xfff83000 [8/0/63] { 10, 0x0, 0x022, 
0x0008c }
5. Merlin+ 132 Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x03e, 0x00081 
},  addit
ional addresses: 0xffd0c000 0xffc00000
6. Merlin+ 132 Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x03e, 
0x00074
 },  additional addresses: 0xffd01000 0xffd03000
7. Merlin+ 132 Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x03e, 0x0007b }
8. Merlin+ 132 Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x03e, 
0x0008c }
9. Merlin+ 132 Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x03e, 0x00082 }
10. Merlin+ 132 Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x03e, 
0x00084
 }
11. Merlin+ 132 Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x03e, 
0x00084
 }
12. Merlin+ 132 Core PC Floppy at 0xffd0a000 [8/16/10] { 10, 0x0, 0x03e, 
0x0008
3 }
13. Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 
0x00085 },
additional addresses: 0xf0011000
14. Merlin L2+ 132 (9000/778/B132L) at 0xfffbe000 [62] { 0, 0x0, 0x503, 
0x00004
 }
15. Memory at 0xfffbf000 [63] { 1, 0x0, 0x061, 0x00009 }
CPU(s): 1 x PA7300LC (PCX-L2) at 132.000000 MHz
Lasi version 0 at 0xffd00000 found.
Dino [8/0] version 3.1 found at 0xfff80000
SCSI subsystem initialized
TC classifier action (bugs to netdev@oss.sgi.com cc hadi@cyberus.ca)
STI GSC/PCI core graphics driver Version 0.9a
    id 2d08c0a7-9a02587, conforms to spec rev. 8.07
    graphics card name: INTERNAL_EG_640
fb0: stifb 640x480-8 frame buffer device, INTERNAL_EG_640, id: 2d08c0a7, 
mmio:
0xf8100000
unwind_init: start = 0x10325720, end = 0x103468a0, entries = 8472
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Initializing Cryptographic API
Soft power switch enabled, polling @ 0xf0140000.
Console: switching to colour frame buffer device 80x30
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 25 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xfff83800 (irq = 106) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
mice: PS/2 mouse device common for all mice
serio: GSC PS2 keyboard port at 0xffd08000 irq 69 @ parisc8:16:7
input: AT Raw Set 2 keyboard on parisc8:16:7
serio: GSC PS2 mouse port at 0xffd08100 irq 69 @ parisc8:16:8
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
NET: Registered protocol family 2
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
RAMDISK: cramfs filesystem found at block 0
RAMDISK: Loading 4600 blocks [1 disk] into ram disk...done.
VFS: Mounted root (cramfs filesystem) readonly.
Freeing unused kernel memory: 316k freed
Linux Tulip driver version 1.1.13 (May 11, 2002)
tulip0:  EEPROM default media type Autosense.
tulip0:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip0: ***WARNING***: No MII transceiver found!
eth0: Digital DS21143 Tulip rev 65 at 0xf0801000, 00:60:B0:B3:25:1E, IRQ 97.
tulip1: no phy info, aborting mtable build
tulip1:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth1: Digital DS21143 Tulip rev 65 at 0xf0802000, 00:10:83:03:FD:E6, IRQ 96.

--- schnipp ---


Any idea how to solve the Problem ?!


TIA

Ullrich Seibel

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From: Stuart Brady <sdbrady@ntlworld.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] AD1889 OPL3 Synthesis
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Xref: news.gmane.org gmane.linux.ports.parisc:22827

I thought I'd explain what's needed to get the AD1889's OPL3 synthesis
working.  (BTW, OPL3 synthesis is pretty primative.)

ALSA provides everything needed to use the OPL3 device.  Most drivers
initialise the hardware if necessary, and then call snd_opl3_create()
followed by snd_opl3_hwdep_new().  snd_opl3_free() is automatically
called by the ALSA layer when the module is unloaded, so there's no need
to call it explicitly.

snd_opl3_create() takes port addresses, so I've had to add a new
function, snd_opl3_create_mapped().  This isn't in mainline 2.6.12 yet.

I'm not happy with the snd_opl3_create_mapped() interface yet...  The
AD1889 driver maps the region containing the OPL3 registers, but the
OPL3 driver does the iounmap().  I've been told that this is the right
way to do it, but it still seems broken.

There should only be one change needed to get the AD1889 OPL3 support
working though.  The DS_SYDA register has to be set, so that it's not
muted, and that the attenuation is set reasonably.  Which is either:

	ad1889_writew(chip, AD_DS_SYDA, 0x3f3f);
	ad1889_readw(chip, AD_DS_SYDA);

or the constant should be 0x0000 rather than 0x3f3f.

I used playmidi for testing.  There are some example MIDI files:
/usr/share/doc/playmidi/examples/*.mid.gz.  Unfortunately, ALSA's OPL3
code has some bugs which affect the quality of the music produced.
Also, playmidi's instruments need some work.

I was getting silence when testing before, but it otherwise appeared to
be working.  There's probably a mixer channel associated with the OPL3
(or SYN, see below) which must be used.  I have no idea which this is.

It seems that if the SYEN bit in the DS_WSMC register is set, this
enables a secondary wave channel (which is called SYN, just to be
confusing) and _disables_ the OPL3 - which results in an HPMC if an
attempt is made to use the OPL3's registers.

The RES channel appears to be take the output of the SYN channel or the
OPL3 (whichever is enabled), resampling it at the rate specified by the
DS_RES register.  It looks as though the SYN channel's sample rate and
format is always that of the WAV channel, which limits its use.
-- 
Stuart Brady
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On Sun, Jun 26, 2005 at 04:20:37PM +0200, Ullrich Seibel wrote:
> tulip0:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
> tulip0: ***WARNING***: No MII transceiver found!

Kyle McMartin needs to backport the patch Thibaut Varenet cooked up
with my help that fixes 21142 support. Ie Debian 2.6.8.x kernel
needs to roll if it wants to fix this problem.

This patch was recently accepted into -mm (Andrew Morton's source tree).

thanks for posting the entire console output.

hth,
grant

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Hello Joel and Grant,

On Tue, 2005-06-21 at 11:18 -0600, Grant Grundler wrote:

> Sorry - very short on time right now. Ryan Bradetich is still the official
> maintainer. If he doesn't have time to deal with it, lobby him to
> officially hand off to someone else. My impression was he was just
> very busy at work and wanted to get involved....this patch sounds like
> a nice easy thing to start with.

As work mentioned, several changes in work has kept me very busy and I
have not been able to spend  much time on non-work related projects like
the parisc-linux port.  I am working on getting this situation changed
so I can spend more time on project like this :)

I am still interested in maintaining the ccio driver (since almost all
my system have this driver) .. but I am also willing to hand over
maintenance to someone that has the interest and more time than I have
been able to commit to it.  Hopefully my time on this project will be
increasing in the future, but if someone is willing to step up to the
plate now and give ccio the attention it deserves, then I will not stand
in the way :)

I also want to thank willy, ggg, jejb and all who have supported this
driver while I have been busy with work.

Thanks,

- Ryan

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Subject: [parisc-linux] parisc_setup_cache_timing() typo?
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hello all,

Is it actualy a typo:
# diff -Nau arch/parisc/kernel/cache.c.Orig arch/parisc/kernel/cache.c  
  
--- arch/parisc/kernel/cache.c.Orig     2005-01-24 07:45:00.000000000 +01=
00
+++ arch/parisc/kernel/cache.c  2005-06-27 13:48:28.857534045 +0200
@@ -347,7 +347,7 @@
        flush_data_cache();
        alltime =3D mfctl(16) - alltime;
 
-       size =3D (unsigned long)(&_end - _text);
+       size =3D (unsigned long)(&_end - &_text);
        rangetime =3D mfctl(16);
        flush_kernel_dcache_range((unsigned long)&_text, size);
        rangetime =3D mfctl(16) - rangetime;
=3D=3D=3D=3D<>=3D=3D=3D=3D

or better have I to invest in new sun glaces ;-)

Thanks,
     Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:22831

Hello all,

I hope to get help from CONFIG_PRINTK_TIME to debug my d380 64bit slownes=
s
pb but tested first on a b2k it panics (waht siad lcd display at leat) ve=
ry
early in the boot and unfortunately pim lakes of relievant info:

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp =3D
  Mon Jun  27 12:41:39 GMT 2005    (20:05:06:27:12:41:39)

HPMC Chassis Codes =3D 2cbf0  2500b  2cbf4  2cbfc

General Registers 0 - 31
00-03   0000000000000000  0000000000000000  000000001012799c  00000000008=
00327
04-07   0000000000000035  00000000104cf5a0  00000000104cf5a3  00000000000=
00006
08-11   000000000000000f  000000000ffffe40  000000000000000e  00000000000=
0003c
12-15   00000000103c9f30  000000000000002f  0000000000000037  00000000000=
0003e
16-19   0000000000000000  00000000f000017c  00000000f0000174  00000000103=
540d0
20-23   0000000000000000  00000000fee003f8  00000000fee003fd  00000000104=
780dc
24-27   0000000000000000  0000000000000000  000000000000000f  00000000103=
b2010
28-31   00000000fffb6c20  000000000ffffe40  0000000020000080  00000000000=
00060

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  00000000000=
00000
04-07   0000000000000000  0000000000000000  0000000000000000  00000000000=
00000
08-11   0000000000000000  0000000000000000  0000000000000000  00000000000=
00020
12-15   0000000000000000  0000000000000000  000000000010b000  00000000000=
00000
16-19   00000007e80371fa  0000000000000000  000000001010c65c  000000000fa=
11288
20-23   0000000000000000  000000001ffffc04  000000ff0000ff00  00000000000=
00000
24-27   000000000046e000  000000000046e000  0000000000044021  00000000f04=
12000
28-31   0000000055555555  0000000055555555  0000000010478000  00000000104=
7c000

Space Registers 0 - 7
00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    =3D 0x0000000000000000
IIA Offset                   =3D 0x0000000000000000
Check Type                   =3D 0x20000000
CPU State                    =3D 0x9e000004
Cache Check                  =3D 0x00000000
TLB Check                    =3D 0x00000000
Bus Check                    =3D 0x003010bb
Assists Check                =3D 0x00000000
Assist State                 =3D 0x00000000
Path Info                    =3D 0x00031800
System Responder Address     =3D 0xfffffffffed10200
System Requestor Address     =3D 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000001f00000000  0000001f00000000  0000001f000=
00000
04-07   0000000000000000  5555555555555555  5555555555555555  55555555555=
55555
08-11   5555555555555555  5555555555555555  5555555555555555  55555555555=
55555
12-15   5555555555555555  5555555555555555  5555555555555555  55555555555=
55555
16-19   5555555555555555  5555555555555555  5555555555555555  55555555555=
55555
20-23   5555555555555555  5555555555555555  5555555555555555  55555555555=
55555
24-27   5555555555555555  5555555555555555  5555555555555555  55555555555=
55555
28-31   5555555555555555  5555555555555555  5555555555555555  55555555555=
55555


'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                =3D 0xcb81041000000000
Available Memory             =3D 0x0000000010000000
CPU Diagnose Register 2      =3D 0x0301000000000204
CPU Status Register 0        =3D 0x2420c20000000000
CPU Status Register 1        =3D 0x8080000000000000
SADD LOG                     =3D 0x5913927569568df8
Read Short LOG               =3D 0xc18040fffee003fd
ERROR_STATUS                 =3D 0x0000000000000010
MEM_ADDR                     =3D 0x000001ff3fffffff
MEM_SYND                     =3D 0x0000000000000000
MEM_ADDR_CORR                =3D 0x000001ff3fffffff
MEM_SYND_CORR                =3D 0x0000000000000000
RUN_DATA_HIGH                =3D 0xc1bff0fffed08040
RUN_DATA_LOW                 =3D 0xc1bff0fffed08040
RUN_CTRL                     =3D 0x0000021c00001418
RUN_ADDR                     =3D 0xc1bff0fffed08040
System Responder Path        =3D 0x00ffffffffffffff


HPMC PIM Analysis Information:

Timestamp =3D
  Mon Jun  27 12:41:39 GMT 2005    (20:05:06:27:12:41:39)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 byt=
es:

A Data Miss Timeout occurred while CPU 0 was
requesting information.
[...]

Any idea?

Thanks,
    Joel


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Subject: Re: [parisc-linux] PRINTK_TIME make panicing very early b2k?
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On Mon, Jun 27, 2005 at 04:30:21PM +0200, Joel Soete wrote:
> Hello all,
> 
> I hope to get help from CONFIG_PRINTK_TIME to debug my d380 64bit slowness
> pb but tested first on a b2k it panics (waht siad lcd display at leat) very
> early in the boot and unfortunately pim lakes of relievant info:

I'm not sure why you say it lacks relevant info.  Seems pretty clear to me:

> IIA Space                    = 0x0000000000000000
> IIA Offset                   = 0x0000000000000000

... a null pointer dereference, in kernel space.

> General Registers 0 - 31
> 00-03   0000000000000000  0000000000000000  000000001012799c  0000000000800327

called from 1012799c.  Where's that in your System.map?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: [parisc-linux] Re: ccio-dma more debuging
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On Mon, Jun 27, 2005 at 08:23:38AM +0200, Joel Soete wrote:
> Cool I found what I think being the trick:
> <http://marc.theaimsgroup.com/?l=bk-commits-head&m=107647970230357&w=2>

Yeah, that looks like the right one.

Keep in mind that parisc sba_iommu.c shares some of the code
touched by the above patch with ccio driver. See iommu-helpers.h.

> But that inforce you to take care of each name change in every palces when
> gcc could do for you ;-)

We aren't cutting/pasting from the code anymore.
I don't need that at this point.

grant
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> 
> On Mon, Jun 27, 2005 at 04:30:21PM +0200, Joel Soete wrote:
> > Hello all,
> > 
> > I hope to get help from CONFIG_PRINTK_TIME to debug my d380 64bit slo=
wness
> > pb but tested first on a b2k it panics (waht siad lcd display at leat=
)
> very
> > early in the boot and unfortunately pim lakes of relievant info:
> 
> I'm not sure why you say it lacks relevant info.
Just because I again missed gr2 info (my bad) sorry

>  Seems pretty clear to me:
> 
> > IIA Space                    =3D 0x0000000000000000
> > IIA Offset                   =3D 0x0000000000000000
> 
> ... a null pointer dereference, in kernel space.
> 
> > General Registers 0 - 31
> > 00-03   0000000000000000  0000000000000000  000000001012799c  0000000=
000800327
> 
> called from 1012799c.  Where's that in your System.map?
>
mmm
 GR[02] =3D=3D rp =3D 000000001012799c

Func: vprintk, Off: 0xcc, Addr: 0x1012799c

10127990 <vprintk+0xc0>:
10127990:       37 84 00 60     ldo 30(ret0),r4
10127994:       eb ef a1 c5     b,l 10106a7c <sched_clock>,%r2
10127998:       08 00 02 40     nop
1012799c:       6b dc 3e 91     stw ret0,-b8(,sp)
101279a0:       6b dd 3e 99     stw ret1,-b4(,sp)
101279a4:       08 1c 02 55     copy ret0,r21
101279a8:       08 1d 02 56     copy ret1,r22
101279ac:       08 1c 02 5d     copy ret0,ret1
101279b0:       34 1c 00 00     ldi 0,ret0
101279b4:       0b bc 02 7c     or ret0,ret1,ret0
101279b8:       8f 80 25 48     cmpib,<> 0,ret0,10127c64 <vprintk+0x394>

and afaik:

GR[28] =3D=3D ret0 =3D 00000000fffb6c20

GR[30] =3D=3D sp =3D 0000000020000080

A bit (no largely) out of my understanding.

Joel


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Subject: [parisc-linux] Re: ccio-dma more debuging
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[...]
> 
> > (I tried a diff between parisc and ia64 but to big to let me understa=
nd
> 
> > what patch was?)
> 
> Right - that won't work. You'll have to dredge up the oldmail
> were Alex proposes the patch. That should be part of the
> ia64-linux mail in ia64-linux mail archives

Cool I found what I think being the trick:
<http://marc.theaimsgroup.com/?l=3Dbk-commits-head&m=3D107647970230357&w=3D=
2>

> 
> > >Just ditch __FUNCTION__ and hard code the string in the panic messag=
e.
> >
> > Is there some pb I missed with __FUNCTION__?
> 
> Not really - but embedding it directly in the string just makes
> less work for gcc.
> 
But that inforce you to take care of each name change in every palces whe=
n
gcc could do for you ;-)

Thanks,
    Joel


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> -- Original Message --
> From: Ryan Bradetich <rbradetich@uswest.net>
> To: Joel Soete <soete.joel@tiscali.be>,
> 	Grant Grundler <grundler@parisc-linux.org>
> Cc: Parisc List <parisc-linux@lists.parisc-linux.org>
> Date: Sun, 26 Jun 2005 15:00:26 -0600
> Subject: Re: [parisc-linux] Re: ccio-dma more debuging
> 
> 
> Hello Joel and Grant,
> 
> On Tue, 2005-06-21 at 11:18 -0600, Grant Grundler wrote:
> 
> > Sorry - very short on time right now. Ryan Bradetich is still the off=
icial
> > maintainer. If he doesn't have time to deal with it, lobby him to
> > officially hand off to someone else. My impression was he was just
> > very busy at work and wanted to get involved....this patch sounds lik=
e
> > a nice easy thing to start with.
> 
> As work mentioned, several changes in work has kept me very busy and I
> have not been able to spend  much time on non-work related projects lik=
e
> the parisc-linux port.  I am working on getting this situation changed
> so I can spend more time on project like this :)
> 
> I am still interested in maintaining the ccio driver
Nice 

> (since almost all my system have this driver)
Great two of mine too: a c110 and a d380 (still have important slowness p=
b
in 64bit as well as afaik some K models)

> .. but I am also willing to hand over
> maintenance to someone that has the interest and more time than I have
> been able to commit to it.  Hopefully my time on this project will be
> increasing in the future, but if someone is willing to step up to the
> plate now and give ccio the attention it deserves, then I will not stan=
d
> in the way :)
> 
Thanks,
    Joel


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On Tue, Jun 28, 2005 at 02:33:08PM +0200, Florian Lohoff wrote:
> > Sounds like a known bug - try to set the kernel option ramdisk_size=32768.
> > You seem to have enough RAM on your box for a bigger ramdisk as well.....
> 
> Yep - fixes this problem - Later on it dies again with a Kernel fault
> and without stack trace :(

Florian,
Can you capture and post the complete console output from power on
until crash?

Our "how to report kernel bugs" FAQ is here:
   http://www.parisc-linux.org/faq/kernelbug-howto.html

In general, the parisc-linux kernels have been known to boot
on K-class machines. I think Franke Benke might be able to help
you out...ISTR he has a K-class to play with as well.

grant

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> I'm not sure why you say it lacks relevant info.  Seems pretty clear to me:
> 
> > IIA Space                    = 0x0000000000000000
> > IIA Offset                   = 0x0000000000000000
> 
> ... a null pointer dereference, in kernel space.
> 
> > General Registers 0 - 31
> > 00-03   0000000000000000  0000000000000000  000000001012799c  0000000000800327
> 
> called from 1012799c.  Where's that in your System.map?

I had a similar toc dump today with 2.6.10-pa11.  The rp value pointed
to the return from the call to do_poll in sys_poll.  I've seen other
hangs in sys_poll.  The code could be in do_poll or sys_poll.  Does a
null pointer dereference in kernel space cause this?  Off hand, I would
have suspected a stack problem in an ISR.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Scott Edwards <supadupa@gmail.com>
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Subject: [parisc-linux] PCI SCSI Card in slot 1 disabled :(
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Xref: news.gmane.org gmane.linux.ports.parisc:22839

I have a B132L workstation that I just added a symbios SCSI card to.=20
I've unable to complete POST.  Upon bootup I see a message like this:

Primary boot path   SESCSI.6.0
Alternate boot path  SESCSI.0.0
Console path   GRAPHICS(0)
Keyboard path:   PS2
 *****
  *****  Disabled the PCI SCSI card in slot 1.
 *****

An unsupported PCI I/O configuration has been detected.

Contact you HP service representative for warranty service to enable
the card(s) listed above.

To use this system before those repairs are complete, power down the
system, remove the card(s) listed above, and reboot.

Halting the system.

---

This card appears to the use the same chipset as the B132L+ (mine is
only B132L, no plus)

http://www.openpa.net/scsi.html#875

If anyone knows how to enable this card, please let me know.  I only
found one similar reference on google groups, and nothing on google
about this.  I assume this card is safe, IMO the halt message is more
about HP's self interest HCL then damage on the system. (besides, how
do they know this card will work with HP-UX?)  Irrelevant as it's
Debian Sarge with stock 2.6 kernel.

Thanks in advance. I look forward to your responses.


Scott Edwards
--
Daxal Communications - http://www.daxal.com
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From: "Christopher James Weatherby" <chrisw@merseymail.com>
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Subject: Re: [parisc-linux] PCI SCSI Card in slot 1 disabled :(
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Xref: news.gmane.org gmane.linux.ports.parisc:22840

Hi Scott,
         I've had the same problem with my B132L, and pci cards.
 Its all to do with the Firmware version your machine is running.
 In the later versions of the Firmware , HP, in its wisdom decided to
prevent any non-supported cards (from the cards id, rather than the
chipsets), from running on their workstations, and
prevent the machine from booting, if one was inserted.My machine used to
happily boot with a wide range of PCI cards, but stopped when I upgraded to
the last Firmware version (6.1, I think).
 I think the only solution is to find an older version of the firmware, and
downgrade the machine. 
However I've never been able to find older versions of the firmware for a
B132L on HP's patch/firmware site (http://itrc.hp.com/ /
ftp://ftp.itrc.hp.com/ )

 Does anyone else know of archived sources of HP firmware?
      
    
              Chris Weatherby.

> I have a B132L workstation that I just added a symbios SCSI card to. 
> I've unable to complete POST.  Upon bootup I see a message like this:
> 
> Primary boot path   SESCSI.6.0
> Alternate boot path  SESCSI.0.0
> Console path   GRAPHICS(0)
> Keyboard path:   PS2
>  *****
>   *****  Disabled the PCI SCSI card in slot 1.
>  *****
> 
> An unsupported PCI I/O configuration has been detected.
> 
> Contact you HP service representative for warranty service to enable
> the card(s) listed above.
> 
> To use this system before those repairs are complete, power down the
> system, remove the card(s) listed above, and reboot.
> 
> Halting the system.
> 
> ---
> 
> This card appears to the use the same chipset as the B132L+ (mine is
> only B132L, no plus)
> 
> http://www.openpa.net/scsi.html#875
> 
> If anyone knows how to enable this card, please let me know.  I only
> found one similar reference on google groups, and nothing on google
> about this.  I assume this card is safe, IMO the halt message is more
> about HP's self interest HCL then damage on the system. (besides, how
> do they know this card will work with HP-UX?)  Irrelevant as it's
> Debian Sarge with stock 2.6 kernel.
> 
> Thanks in advance. I look forward to your responses.
> 
> 
> Scott Edwards
> --
> Daxal Communications - http://www.daxal.com
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 








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pa,

Assemble this using a binutils without Alan Modra's pa_block patch:
---        
	.data
foo:
        .block
bar:
        .block 0x3fffffff
com:
---

And I get this:

Backtrace:   
 [<101c10a4>] journal_add_journal_head+0xdc/0x13c
 [<101ba51c>] journal_dirty_data+0x64/0x1dc
 [<101a7634>] ext3_journal_dirty_data+0x1c/0x60
 [<101a73d8>] walk_page_buffers+0xe8/0xf4
 [<101a7d5c>] ext3_ordered_writepage+0x168/0x1fc
 [<1018c1d8>] mpage_writepages+0x2ac/0x3fc
 [<1018a4cc>] __sync_single_inode+0x5c/0x274
 [<1018a77c>] __writeback_single_inode+0x98/0x16c
 [<1018aa2c>] sync_sb_inodes+0x1dc/0x32c
 [<1018ac38>] writeback_inodes+0xbc/0xd8
 [<10147b08>] background_writeout+0xc4/0x11c
 [<1014884c>] __pdflush+0x134/0x204
 [<1014893c>] pdflush+0x20/0x2c
 [<1013abd0>] kthread+0xe8/0xf0
 [<10109c5c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=15 regs=3249c840 (Addr=73c9d7ba)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 10529010 101c10a4 73c9d7ba
r04-07  2046f930 45a703e8 2046f930 00000000
r08-11  00001000 00000000 00000000 45a703e8
r12-15  101a7bc4 00002000 4fe678dc 101a7bf4
r16-19  00000000 00000000 3249c508 00000002
r20-23  00000000 00000000 73c9d7ba 00000000
r24-27  00000034 00000000 73c9d7ba 1038e010
r28-31  73c9d7ba 00100100 3249c840 112d35d4
sr0-3   00000000 0000016a 00000000 0000016a
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10236f48 10236f4c
 IIR: 0ed91200    ISR: 00000000  IOR: 73c9d7ba
 CPU:        0   CR30: 3249c000 CR31: 10478000
 ORIG_R28: 3249c980
 IAOQ[0]: memset+0x24/0xac
 IAOQ[1]: memset+0x28/0xac
RP(r2): journal_add_journal_head+0xdc/0x13c
---

The story goes that binutils attempts to allocate a monstrous amount of
memory for that block. Newer binutils complain, Alan added some magic
checks.

The question I have is:

a. Why does the box die? Is this OOM looking for memory?
b. Why doesn't the process just die?

c.

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On Thu, Jun 30, 2005 at 02:36:03PM -0400, Carlos O'Donell wrote:
> 
> pa,
> 
> Assemble this using a binutils without Alan Modra's pa_block patch:
> ---        
> 	.data
> foo:
>         .block
> bar:
>         .block 0x3fffffff
> com:
> ---

The last thing I see is this:
mmap(NULL, 1073811456, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x408fc000

And I believe that the process proceeds to memset everything to zero.
I've done similar tests before and not had any problems. I guess I
should probably turn OOM off.

c.


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>  IAOQ[0]: memset+0x24/0xac
>  IAOQ[1]: memset+0x28/0xac

It looks like memset has been passed a bad address.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Jun 30, 2005 at 03:07:30PM -0400, John David Anglin wrote:
> >  IAOQ[0]: memset+0x24/0xac
> >  IAOQ[1]: memset+0x28/0xac
> 
> It looks like memset has been passed a bad address.
> 

Who passed the bad page?

I see this from the userspace/kernel side:

as-new        D 10109D08     0  1065    748                     (NOTLB)
Backtrace:
 [<10100eac>] schedule+0x4a0/0x6f8
 [<10101b10>] io_schedule+0x3c/0x68
 [<101404d8>] sync_page+0x40/0x68
 [<10102078>] __wait_on_bit_lock+0xdc/0xf0
 [<101410a4>] __lock_page+0x98/0xa4
 [<101532fc>] do_swap_page+0x36c/0x400
 [<10153c94>] handle_mm_fault+0x120/0x204
 [<10103558>] do_page_fault+0x214/0x2a4
 [<10104fd4>] handle_interruption+0x2bc/0x5e8
 [<1010a088>] intr_check_sig+0x0/0xc
 [<1014c388>] __pagevec_lru_add_active+0xfc/0x144
 [<10129e98>] tasklet_action+0x70/0xe0
 [<10162fd4>] dentry_open+0x120/0x1c0
 [<10162fd4>] dentry_open+0x120/0x1c0
 [<10162fd4>] dentry_open+0x120/0x1c0
 [<10162fd4>] dentry_open+0x120/0x1c0

Clearly as-new is toast and swapping the system like made.

c.

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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] [gcc] should we teach gcc some new tricks?
Date: Fri, 1 Jul 2005 15:43:17 +0200
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To: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:22845

Helo Dave and all,

Just a small update with some success ;-)

for remind:
(with gcc-3.3)
    o 2.6.9-rc2-pa1 with default compile option '-mdisable-fpregs' works
fine on my b180 (stress test ok)

    o the same 2.6.9-rc2-pa1 without this option (i.e. new default) crash=
ed
on stress test (about 2h test)
    o the later 2.6.9-rc2-pa13 (without '-mdisable-fpregs' by default) cr=
ashed
also.

good news with gcc-4.0 (debian pakage) and '-mfixed-range=3Dfr6-fr21,fr27=
-fr31'

    o 2.6.9-rc2-pa1 seems to works as fine as with original option
    o 2.6.9-rc2-pa13 the same 

(just have to backport some small stuff to  reach to compile kernels)

I apply my stress test (tar loops + kernel build loops) during a full day=

for each one without any pb ;-)

I can now try a step forward: 2.6.10-pa + gcc-4.0, ...

Thanks,
    Joel

> 
> 
> John David Anglin wrote:
> >>mmm do I well understand that to force gcc to on;y use fr4-f5 and fr2=
2-fr26
> >>(as do __muldi3), I had to use option:
> >>cflags-y        +=3D -mfixed-range=3Dfr6-fr21,fr27-fr28
> > 
> > 
> > Close, I used the change below.
> mmm I definetely have to go back to elementary school (4 + 28 -1 =3D 31=
 and
> not 28, my bad !!!)
> 
> >  This seems to build and check ok.
> Ok I will try to rebuild libgcc2 and kernel with same options.
> 
> Btw 2.6.12-pa1 already build and boot fine with above mentioned options=
.
> Anyway still hanging after 44 min of stress test.
> 
> So imho 2 first thinks to do:
> 	o apply the right 'fixed-range' option
> 	o apply 2.6.12.1 patch
> 
> > I don't know if it would be possible to cut back another register or
not.
> > If I was going to try, I would add fr26 to the fixed list.
> > 
> If still not work, the 3rd test I will do ;-)
> 
> I will advise.
> 
> Thanks again,
>      Joel
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


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From: "J. L. Lee" <jllee@singnet.com.sg>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Matrox Mystique video card NOT initialized on HP
 Visualize 785/B2000 with 2.6.12-rc6-pa1kernel
Date: Fri, 01 Jul 2005 23:08:05 +0800
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Hi,

I have now upgraded to Linux Kernel 2.6.12-rc6-pa1 but am still having 
problems in getting Matrox Mystique video card up and running, i.e. the 
card did not get initialized. At least it didn't cause Kernel panic as it 
did in 2.6.8.  (The driver is compiled into the kernel.)

Part of the booting up messages are attached here:

"... Snipped

SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 68)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
PDC Stable Storage facility v0.09
Soft power switch enabled, polling @ 0xf0400804.
STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at fd820000 (128 kB), fb at fb000000 (16 MB)
     id 35acda16-9a02587, conforms to spec rev. 8.0c
     graphics card name: HPA4982A
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
matroxfb: Matrox Mystique (PCI) detected
matroxfb: cannot determine memory size
matroxfb: probe of 0000:01:01.0 failed with error -1
tridentfb: Trident framebuffer 0.7.8-NEWAPI initializing
stifb: 'HPA4982A' (id: 0x35acda16) not supported.
Generic RTC Driver v1.07

... Snipped"


What should I try next? Pls advise.

Thanks,
Lee

ps. I also have the Trident driver compiled into the Kernel but no Trident 
card installed.

pps. Output from 'lspci -v':-


... Snipped

0000:01:00.0 3D controller: Hewlett-Packard Company Visualize FXe (rev 03)
         Subsystem: Hewlett-Packard Company: Unknown device 108c
         Flags: bus master, 66MHz, medium devsel, latency 255, IRQ 70
         Memory at fb000000 (64-bit, prefetchable) [size=16M]
         Memory at fa000000 (64-bit, non-prefetchable) [size=16M]
         Expansion ROM at fd820000 [disabled] [size=128K]

0000:01:01.0 VGA compatible controller: Matrox Graphics, Inc. MGA 1064SG 
[Mystique] (rev 02) (prog-if 00 [VGA])
         Flags: bus master, stepping, medium devsel, latency 248, IRQ 71
         Memory at fd800000 (32-bit, non-prefetchable) [size=16K]
         Memory at fd000000 (32-bit, prefetchable) [size=8M]
         Memory at f4800000 (32-bit, non-prefetchable) [size=8M]
         Expansion ROM at fd820000 [disabled] [size=64K]

... Snipped

--=====================_43992908==.ALT
Content-Type: text/html; charset="us-ascii"

<html>
<font face="Courier New, Courier">Hi,<br><br>
I have now upgraded to Linux Kernel 2.6.12-rc6-pa1 but am still having
problems in getting Matrox Mystique video card up and running, i.e. the
card did not get initialized. At least it didn't cause Kernel panic as it
did in 2.6.8.&nbsp; (The driver is compiled into the kernel.)<br><br>
Part of the booting up messages are attached here:<br><br>
&quot;... Snipped<br><br>
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 68) <br>
SuperIO: Serial port 1 at 0x3f8<br>
SuperIO: Serial port 2 at 0x2f8<br>
SuperIO: Parallel port at 0x378<br>
SuperIO: Floppy controller at 0x3f0<br>
SuperIO: ACPI at 0x7e0<br>
SuperIO: USB regulator enabled<br>
PDC Stable Storage facility v0.09<br>
Soft power switch enabled, polling @ 0xf0400804.<br>
STI GSC/PCI core graphics driver Version 0.9a<br>
STI PCI graphic ROM found at fd820000 (128 kB), fb at fb000000 (16
MB)<br>
&nbsp;&nbsp;&nbsp; id 35acda16-9a02587, conforms to spec rev. 8.0c<br>
&nbsp;&nbsp;&nbsp; graphics card name: HPA4982A<br>
sticon: Initializing STI text console.<br>
Console: switching to colour STI console 160x64<br>
matroxfb: Matrox Mystique (PCI) detected<br>
matroxfb: cannot determine memory size<br>
matroxfb: probe of 0000:01:01.0 failed with error -1<br>
tridentfb: Trident framebuffer 0.7.8-NEWAPI initializing<br>
stifb: 'HPA4982A' (id: 0x35acda16) not supported.<br>
Generic RTC Driver v1.07<br><br>
... Snipped&quot;<br><br>
<br>
What should I try next? Pls advise.<br><br>
Thanks,<br>
Lee<br><br>
ps. I also have the Trident driver compiled into the Kernel but no
Trident card installed.<br><br>
pps. Output from 'lspci -v':-<br><br>
<br>
... Snipped<br><br>
0000:01:00.0 3D controller: Hewlett-Packard Company Visualize FXe (rev
03)<br>
<x-tab>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</x-tab>Subsystem:
Hewlett-Packard Company: Unknown device 108c<br>
<x-tab>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</x-tab>Flags: bus
master, 66MHz, medium devsel, latency 255, IRQ 70<br>
<x-tab>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</x-tab>Memory at
fb000000 (64-bit, prefetchable) [size=16M]<br>
<x-tab>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</x-tab>Memory at
fa000000 (64-bit, non-prefetchable) [size=16M]<br>
<x-tab>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</x-tab>Expansion
ROM at fd820000 [disabled] [size=128K]<br><br>
0000:01:01.0 VGA compatible controller: Matrox Graphics, Inc. MGA 1064SG
[Mystique] (rev 02) (prog-if 00 [VGA])<br>
<x-tab>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</x-tab>Flags: bus
master, stepping, medium devsel, latency 248, IRQ 71<br>
<x-tab>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</x-tab>Memory at
fd800000 (32-bit, non-prefetchable) [size=16K]<br>
<x-tab>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</x-tab>Memory at
fd000000 (32-bit, prefetchable) [size=8M]<br>
<x-tab>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</x-tab>Memory at
f4800000 (32-bit, non-prefetchable) [size=8M]<br>
<x-tab>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</x-tab>Expansion
ROM at fd820000 [disabled] [size=64K]<br><br>
... Snipped</font><br>
</html>

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Dave,

Forwarding your valuable comments to the list for analysis :)

c.


----- Forwarded message from John David Anglin <dave@hiauly1.hia.nrc.ca> -----

> > Backtrace:   
> >  [<101c10a4>] journal_add_journal_head+0xdc/0x13c

I think this is a bug in journal_add_journal_head:

repeat:
        if (!buffer_jbd(bh)) {
		new_jh = journal_alloc_journal_head();
		memset(new_jh, 0, sizeof(*new_jh));
	}

journal_alloc_journal_head() can return a null pointer causing
the kernel to die in memset.  I think the fix is to skip calling
memset when new_jh is null.  The rest of the code looks ok except
for possibly

                if (!new_jh) {
			jbd_unlock_bh_journal_head(bh);
			goto repeat;
		}

This might loop forever.  So, somebody who knows how this is
supposed to work should look at it.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

----- End forwarded message -----
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Subject: Re: [dave@hiauly1.hia.nrc.ca: Re: [parisc-linux] Why gas kills the
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On Fri, 2005-07-01 at 13:53 -0400, Carlos O'Donell wrote:
> journal_alloc_journal_head() can return a null pointer causing
> the kernel to die in memset.  I think the fix is to skip calling
> memset when new_jh is null.  The rest of the code looks ok except
> for possibly

That's true (and needs fixing), but isn't what happened in this case.
Look at the traceback:

> Kernel Fault: Code=15 regs=3249c840 (Addr=73c9d7ba)

The address wasn't NULL, it was something really strange above the
addressable virtual memory in the system.

This fault is consistent with a class of faults we've been seeing since
2.6.11-rc1-pa0 where kmem_cache_alloc() is returning memory that can't
be written to (usually just slightly above the end of virtual memory).

James


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> On Fri, 2005-07-01 at 13:53 -0400, Carlos O'Donell wrote:
> > journal_alloc_journal_head() can return a null pointer causing
> > the kernel to die in memset.  I think the fix is to skip calling
> > memset when new_jh is null.  The rest of the code looks ok except
> > for possibly
> 
> That's true (and needs fixing), but isn't what happened in this case.
> Look at the traceback:

Actually, I was wrong.  journal_alloc_journal_head con't return
null.  I see it spins until kmem_cache_alloc returns a non null
value.

It looks like mm/slab.c needs to be built with DEBUG true and
and possibly CONFIG_DEBUG_PAGEALLOC to find how the pointer is
getting allocated.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [dave@hiauly1.hia.nrc.ca: Re: [parisc-linux] Why gas kills the
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On Fri, Jul 01, 2005 at 02:07:24PM -0400, James Bottomley wrote:
> On Fri, 2005-07-01 at 13:53 -0400, Carlos O'Donell wrote:
> > journal_alloc_journal_head() can return a null pointer causing
> > the kernel to die in memset.  I think the fix is to skip calling
> > memset when new_jh is null.  The rest of the code looks ok except
> > for possibly
> 
> That's true (and needs fixing), but isn't what happened in this case.
> Look at the traceback:
> 
> > Kernel Fault: Code=15 regs=3249c840 (Addr=73c9d7ba)
> 
> The address wasn't NULL, it was something really strange above the
> addressable virtual memory in the system.
> 
> This fault is consistent with a class of faults we've been seeing since
> 2.6.11-rc1-pa0 where kmem_cache_alloc() is returning memory that can't
> be written to (usually just slightly above the end of virtual memory).

James you wanted the dmesg of this box, provided below:

---
Linux version 2.6.12-pa1 (carlos@churchill) (gcc version 3.3.6 (Debian 1:3.3.6-6)) #37 Mon Jun 20 01:24:28 EDT 2005
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005bb0 00000481 00000000 00000002 77e816ae 100000f0 00000008 000000b2 000000b2
vers  00000200
CPUID vers 17 rev 4 (0x00000224)
capabilities 0x3
model 9000/785/C3000
Total Memory: 1024 MB
On node 0 totalpages: 262144
  DMA zone: 262144 pages, LIFO batch:31
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
LCD display at f05d0008,f05d0000 registered
Built 1 zonelists
Kernel command line: root=/dev/sda2 HOME=/ console=ttyS0 profile=2 pdcchassis=0 palo_kernel=2/boot/vmlinux-test
kernel profiling enabled (shift: 2)
PID hash table entries: 4096 (order: 12, 65536 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 131072 (order: 7, 524288 bytes)
Memory: 1048576k available
Calibrating delay loop... 796.67 BogoMIPS (lpj=398336)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. AllegroHigh W at 0xfffa0000 [32] { 0, 0x0, 0x5bb, 0x00004 }
7. Memory at 0xfed10200 [49] { 1, 0x0, 0x086, 0x00009 }
CPU(s): 1 x PA8500 (PCX-W) at 400.000000 MHz
Whole cache flush 260339 cycles, flushing 273920028 bytes 36322075 cycles
Setting cache flush threshold to 80 (1 CPUs online)
SBA found Astro 2.1 at 0xfed00000
LBA version TR2.1 (0x2) found at 0xfed30000
PCI: Enabled native mode for NS87415 (pif=0x8f)
LBA version TR2.1 (0x2) found at 0xfed32000
iosapic: no IRTE for 0000:01:05.0 (IRQ not connected?)
LBA version TR2.1 (0x2) found at 0xfed38000
iosapic: hpa not registered for 0000:02:03.0
LBA version TR2.1 (0x2) found at 0xfed3c000
SCSI subsystem initialized
unwind_init: start = 0x10366f40, end = 0x1038d8b0, entries = 9879
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 67) 
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
PDC Stable Storage facility v0.09
Soft power switch enabled, polling @ 0xf0400804.
STI GSC/PCI core graphics driver Version 0.9a
STI PCI ROM enabled at 0xf4840000
STI PCI graphic ROM found at f4840000 (64 kB), fb at fa000000 (32 MB)
Trying PCI STI ROM at f4840000, PCI hpa at fa000000
PCI ROM size (from header) = 64 kB
PCI region Mapper offset = 00000034: 10 10 10 10 10 00 00 00 00 00 00 00 00 00 00 00 
sig 55aa0000, PCI STI ROM at f4840044
    word mode ROM at f4840044, hpa at fa000000
selected 8x8 fb-font VGA8x8
    id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
      supports 15 monitors
      font start 00007730
      region list 00007718
      init_graph 00000890
      bus support 20
      ext bus support 00
      alternate code type 0
region #0: phys fa000000, virt fa000000, len=64kB, btlb=1, sysonly=0, cache=0, last=0
region #1: phys fb000000, virt fb000000, len=16384kB, btlb=1, sysonly=0, cache=0, last=0
region #2: phys fa100000, virt fa100000, len=2560kB, btlb=1, sysonly=0, cache=0, last=0
region #3: phys fac00000, virt fac00000, len=4096kB, btlb=1, sysonly=0, cache=0, last=0
region #4: phys fa380000, virt fa380000, len=4kB, btlb=0, sysonly=1, cache=0, last=1
STI PCI ROM disabled
3 text planes
1280 x 1024 screen resolution
   0 x    0 offscreen
2048 x 2048 layout
regions at fa000000 fb000000 fa100000 fac00000
regions at fa380000 00000000 00000000 00000000
reent_lvl 0
save_addr 012d1400
monitor 0
in friendly mode: 0
power consumption 0 watts
freq ref 0
sti_mem_addr 012f6580 (size=256 bytes)
8 bits per pixel
8 used bits
16 planes
attributes 0000b836
    graphics card name: PCI_GRAFFITIDX1280
STI PCI ROM enabled at 0xf6000000
STI PCI graphic ROM found at f6000000 (64 kB), fb at f8000000 (32 MB)
Trying PCI STI ROM at f6000000, PCI hpa at f8000000
PCI ROM size (from header) = 64 kB
PCI region Mapper offset = 00000034: 10 10 10 10 10 00 00 00 00 00 00 00 00 00 00 00 
sig 55aa0000, PCI STI ROM at f6000044
    word mode ROM at f6000044, hpa at f8000000
    id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
      supports 15 monitors
      font start 00007730
      region list 00007718
      init_graph 00000890
      bus support 20
      ext bus support 00
      alternate code type 0
region #0: phys f8000000, virt f8000000, len=64kB, btlb=1, sysonly=0, cache=0, last=0
region #1: phys f9000000, virt f9000000, len=16384kB, btlb=1, sysonly=0, cache=0, last=0
region #2: phys f8100000, virt f8100000, len=2560kB, btlb=1, sysonly=0, cache=0, last=0
region #3: phys f8c00000, virt f8c00000, len=4096kB, btlb=1, sysonly=0, cache=0, last=0
region #4: phys f8380000, virt f8380000, len=4kB, btlb=0, sysonly=1, cache=0, last=1
STI PCI ROM disabled
3 text planes
1280 x 1024 screen resolution
   0 x    0 offscreen
2048 x 2048 layout
regions at f8000000 f9000000 f8100000 f8c00000
regions at f8380000 00000000 00000000 00000000
reent_lvl 0
save_addr 012d1000
monitor 0
in friendly mode: 0
power consumption 0 watts
freq ref 0
sti_mem_addr 012f6380 (size=256 bytes)
8 bits per pixel
8 used bits
8 planes
attributes 0000b836
    graphics card name: PCI_GRAFFITIX1280
sticon: Initializing STI text console.
Console: switching to colour STI console 160x128
Console: switching to colour frame buffer device 160x128
fb0: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIDX1280, id: 2d08c0a7, mmio: 0xfa100000
fb1: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIX1280, id: 2d08c0a7, mmio: 0xf8100000
Generic RTC Driver v1.07
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at I/O 0x3f8 (irq = 3) is a 16550A
ttyS1 at I/O 0x2f8 (irq = 4) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 1.1.13 (December 15, 2004)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21142/DS21143 Tulip rev 48 at 80001000, 00:60:B0:EA:28:2B, IRQ 65.
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip1:  Index #1 - Media 10base2 (#1) described by a 21142 Serial PHY (2) block.
tulip1:  Index #2 - Media AUI (#2) described by a 21142 Serial PHY (2) block.
tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.
tulip1:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth1: Digital DS21142/DS21143 Tulip rev 33 at 80012000, 00:60:B0:7A:02:E1, IRQ 71.
sym0: <896> rev 0x4 at pci 0000:00:0f.0 irq 68
sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
sym0: SCSI BUS mode change from SE to SE.
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.1
sym1: <896> rev 0x4 at pci 0000:00:0f.1 irq 68
sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.2.1
  Vendor: HP 73.4G  Model: ST373405LC        Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target1:0:5: tagged command queuing enabled, command queue depth 16.
 target1:0:5: Beginning Domain Validation
 target1:0:5: asynchronous.
WIDTH IS 1
 target1:0:5: wide asynchronous.
 target1:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
 target1:0:5: Ending Domain Validation
  Vendor: HP        Model: 9.10GB B 80-1205  Rev:     
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target1:0:6: tagged command queuing enabled, command queue depth 16.
 target1:0:6: Beginning Domain Validation
 target1:0:6: asynchronous.
WIDTH IS 1
 target1:0:6: wide asynchronous.
 target1:0:6: Domain Validation skipping write tests
 target1:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 15)
 target1:0:6: Ending Domain Validation
sym2: <1010-66> rev 0x1 at pci 0000:01:04.0 irq 69
sym2: PA-RISC Firmware, ID 7, Fast-80, LVD, parity checking
sym2: SCSI BUS has been reset.
scsi2 : sym-2.2.1
sym3: <1010-66> rev 0x1 at pci 0000:01:04.1 irq 70
sym3: PA-RISC Firmware, ID 7, Fast-80, LVD, parity checking
sym3: SCSI BUS has been reset.
scsi3 : sym-2.2.1
SCSI device sda: 143374738 512-byte hdwr sectors (73408 MB)
SCSI device sda: drive cache: write through
SCSI device sda: 143374738 512-byte hdwr sectors (73408 MB)
SCSI device sda: drive cache: write through
 sda: sda1 sda2 sda3 sda4
Attached scsi disk sda at scsi1, channel 0, id 5, lun 0
SCSI device sdb: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sdb: drive cache: write through
SCSI device sdb: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sdb: drive cache: write through
 sdb: sdb1
Attached scsi disk sdb at scsi1, channel 0, id 6, lun 0
Attached scsi generic sg0 at scsi1, channel 0, id 5, lun 0,  type 0
Attached scsi generic sg1 at scsi1, channel 0, id 6, lun 0,  type 0
mice: PS/2 mouse device common for all mice
oprofile: using timer interrupt.
NET: Registered protocol family 2
IP: routing cache hash table of 8192 buckets, 64Kbytes
TCP established hash table entries: 262144 (order: 9, 2097152 bytes)
TCP bind hash table entries: 65536 (order: 6, 262144 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
NET: Registered protocol family 1
NET: Registered protocol family 17
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 568k freed
Adding 2097136k swap on /dev/sda3.  Priority:-1 extents:1
EXT3 FS on sda2, internal journal
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sdb1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
eth0: Setting full-duplex based on MII#1 link partner capability of 41e1.
---

c.

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Subject: Re: [dave@hiauly1.hia.nrc.ca: Re: [parisc-linux] Why gas kills the
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Cc: James Bottomley <James.Bottomley@SteelEye.com>,
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:22851

On Fri, Jul 01, 2005 at 02:38:03PM -0400, John David Anglin wrote:
> > On Fri, 2005-07-01 at 13:53 -0400, Carlos O'Donell wrote:
> > > journal_alloc_journal_head() can return a null pointer causing
> > > the kernel to die in memset.  I think the fix is to skip calling
> > > memset when new_jh is null.  The rest of the code looks ok except
> > > for possibly
> > 
> > That's true (and needs fixing), but isn't what happened in this case.
> > Look at the traceback:
> 
> Actually, I was wrong.  journal_alloc_journal_head con't return
> null.  I see it spins until kmem_cache_alloc returns a non null
> value.
> 
> It looks like mm/slab.c needs to be built with DEBUG true and
> and possibly CONFIG_DEBUG_PAGEALLOC to find how the pointer is
> getting allocated.

CONFIG_DEBUG_SLAB
CONFIG_DEBUG_KOBJECT
CONFIG_DEBUG_FS

I'll try these and then crash the machine again :)

c.

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Subject: Re: [dave@hiauly1.hia.nrc.ca: Re: [parisc-linux] Why gas kills the
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Cc: James Bottomley <James.Bottomley@SteelEye.com>,
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Xref: news.gmane.org gmane.linux.ports.parisc:22852

On Fri, Jul 01, 2005 at 02:38:03PM -0400, John David Anglin wrote:
> > On Fri, 2005-07-01 at 13:53 -0400, Carlos O'Donell wrote:
> > > journal_alloc_journal_head() can return a null pointer causing
> > > the kernel to die in memset.  I think the fix is to skip calling
> > > memset when new_jh is null.  The rest of the code looks ok except
> > > for possibly
> > 
> > That's true (and needs fixing), but isn't what happened in this case.
> > Look at the traceback:
> 
> Actually, I was wrong.  journal_alloc_journal_head con't return
> null.  I see it spins until kmem_cache_alloc returns a non null
> value.
> 
> It looks like mm/slab.c needs to be built with DEBUG true and
> and possibly CONFIG_DEBUG_PAGEALLOC to find how the pointer is
> getting allocated.

I don't know how to turn that on, I can see the define in a couple of
places, but it's not really connected to any configuration option.
It looks bitrotten.

c.

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Subject: Re: [dave@hiauly1.hia.nrc.ca: Re: [parisc-linux] Why gas kills the
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:22853

On Fri, Jul 01, 2005 at 03:12:55PM -0400, Carlos O'Donell wrote:
> On Fri, Jul 01, 2005 at 02:38:03PM -0400, John David Anglin wrote:
> > > On Fri, 2005-07-01 at 13:53 -0400, Carlos O'Donell wrote:
> > > > journal_alloc_journal_head() can return a null pointer causing
> > > > the kernel to die in memset.  I think the fix is to skip calling
> > > > memset when new_jh is null.  The rest of the code looks ok except
> > > > for possibly
> > > 
> > > That's true (and needs fixing), but isn't what happened in this case.
> > > Look at the traceback:
> > 
> > Actually, I was wrong.  journal_alloc_journal_head con't return
> > null.  I see it spins until kmem_cache_alloc returns a non null
> > value.
> > 
> > It looks like mm/slab.c needs to be built with DEBUG true and
> > and possibly CONFIG_DEBUG_PAGEALLOC to find how the pointer is
> > getting allocated.
> 
> I don't know how to turn that on, I can see the define in a couple of
> places, but it's not really connected to any configuration option.
> It looks bitrotten.

Run again with debug I get teh following:

as-new        D 10109D08     0   453    438                     (NOTLB)
Backtrace:
 [<10100eac>] schedule+0x4a0/0x6f8
 [<10101b10>] io_schedule+0x3c/0x68
 [<101404d8>] sync_page+0x40/0x68
 [<10102078>] __wait_on_bit_lock+0xdc/0xf0
 [<101410a4>] __lock_page+0x98/0xa4
 [<101547c0>] do_swap_page+0x36c/0x400
 [<10155158>] handle_mm_fault+0x120/0x204
 [<10103558>] do_page_fault+0x214/0x2a4
 [<10104fd4>] handle_interruption+0x2bc/0x5e8
 [<1010a088>] intr_check_sig+0x0/0xc
 [<10166060>] get_empty_filp+0x5c/0x120
 [<10166060>] get_empty_filp+0x5c/0x120
 [<10166060>] get_empty_filp+0x5c/0x120
 [<10166060>] get_empty_filp+0x5c/0x120
 [<10166060>] get_empty_filp+0x5c/0x120
 [<10166060>] get_empty_filp+0x5c/0x120

---

Slab corruption: start=435cd90a, len=52
Redzone: 0x0/0x0.
Last user: [<00000000>](_stext+0xefefff80/0x20)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
030: 00 00 00 00
Prev obj: start=435cd8c5, len=52
Redzone: 0x0/0x0.
Last user: [<00000000>](_stext+0xefefff80/0x20)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
slab error in cache_alloc_debugcheck_after(): cache `journal_head':
double free, or memory outside object was overwritten
Backtrace:
 [<1014ba94>] cache_alloc_debugcheck_after+0xd0/0x184
 [<1014bf04>] kmem_cache_alloc+0x7c/0xc0
 [<101c04e4>] journal_alloc_journal_head+0x28/0xac
 [<101c0654>] journal_add_journal_head+0xc8/0x13c
 [<101b9ae0>] journal_dirty_data+0x64/0x1dc
 [<101a7d8c>] ext3_journal_dirty_data+0x1c/0x60
 [<101a7b30>] walk_page_buffers+0xe8/0xf4
 [<101a84b4>] ext3_ordered_writepage+0x168/0x1fc
 [<1018d68c>] mpage_writepages+0x2ac/0x3fc
 [<1018b980>] __sync_single_inode+0x5c/0x274
 [<1018bc30>] __writeback_single_inode+0x98/0x16c
 [<1018bee0>] sync_sb_inodes+0x1dc/0x32c
 [<1018c0ec>] writeback_inodes+0xbc/0xd8
 [<10147b08>] background_writeout+0xc4/0x11c
 [<1014884c>] __pdflush+0x134/0x204
 [<1014893c>] pdflush+0x20/0x2c

435cd906: redzone 1: 0x0, redzone 2: 0x0.
Slab corruption: start=435cd90a, len=52
Redzone: 0x170fc2a5/0x170fc2a5.
Last user: [<101c04e4>](journal_alloc_journal_head+0x28/0xac)
000: 2c 38 76 7c 00 00 00 00 00 00 00 01 00 00 00 00
010: 00 00 00 00 00 00 00 00 4f 66 b9 d8 00 00 00 00
020: 31 36 73 48 35 cf ae 48 00 00 00 00 00 00 00 00
030: 00 00 00 00
Prev obj: start=435cd8c5, len=52
Redzone: 0x0/0x0.
Last user: [<00000000>](_stext+0xefefff80/0x20)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
slab error in cache_alloc_debugcheck_after(): cache `journal_head':
double free, or memory outside object was overwritten
Backtrace:
 [<1014ba94>] cache_alloc_debugcheck_after+0xd0/0x184
 [<1014bf04>] kmem_cache_alloc+0x7c/0xc0
 [<101c04e4>] journal_alloc_journal_head+0x28/0xac
 [<101c0654>] journal_add_journal_head+0xc8/0x13c
 [<101b9ae0>] journal_dirty_data+0x64/0x1dc
 [<101a7d8c>] ext3_journal_dirty_data+0x1c/0x60
 [<101a7b30>] walk_page_buffers+0xe8/0xf4
 [<101a84b4>] ext3_ordered_writepage+0x168/0x1fc
 [<1018d68c>] mpage_writepages+0x2ac/0x3fc
 [<1018b980>] __sync_single_inode+0x5c/0x274
 [<1018bc30>] __writeback_single_inode+0x98/0x16c
 [<1018bee0>] sync_sb_inodes+0x1dc/0x32c
 [<1018c0ec>] writeback_inodes+0xbc/0xd8
 [<10147b08>] background_writeout+0xc4/0x11c
 [<1014884c>] __pdflush+0x134/0x204
 [<1014893c>] pdflush+0x20/0x2c

435cd906: redzone 1: 0x170fc2a5, redzone 2: 0x170fc2a5.
Slab corruption: start=435cd90a, len=52
Redzone: 0x170fc2a5/0x170fc2a5.
Last user: [<101c04e4>](journal_alloc_journal_head+0x28/0xac)
000: 2c 38 76 b8 00 00 00 00 00 00 00 01 00 00 00 00
010: 00 00 00 00 00 00 00 00 4f 66 b9 d8 00 00 00 00
020: 43 5c d9 0a 43 5c d9 0a 00 00 00 00 00 00 00 00
030: 00 00 00 00
Prev obj: start=435cd8c5, len=52
Redzone: 0x0/0x0.
Last user: [<00000000>](_stext+0xefefff80/0x20)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
slab error in cache_alloc_debugcheck_after(): cache `journal_head':
double free, or memory outside object was overwritten
Backtrace:
 [<1014ba94>] cache_alloc_debugcheck_after+0xd0/0x184
 [<1014bf04>] kmem_cache_alloc+0x7c/0xc0
 [<101c04e4>] journal_alloc_journal_head+0x28/0xac
 [<101c0654>] journal_add_journal_head+0xc8/0x13c
 [<101b9ae0>] journal_dirty_data+0x64/0x1dc
 [<101a7d8c>] ext3_journal_dirty_data+0x1c/0x60
 [<101a7b30>] walk_page_buffers+0xe8/0xf4
 [<101a84b4>] ext3_ordered_writepage+0x168/0x1fc
 [<1018d68c>] mpage_writepages+0x2ac/0x3fc
 [<1018b980>] __sync_single_inode+0x5c/0x274
 [<1018bc30>] __writeback_single_inode+0x98/0x16c
 [<1018bee0>] sync_sb_inodes+0x1dc/0x32c
 [<1018c0ec>] writeback_inodes+0xbc/0xd8
 [<10147b08>] background_writeout+0xc4/0x11c
 [<1014884c>] __pdflush+0x134/0x204
 [<1014893c>] pdflush+0x20/0x2c

435cd906: redzone 1: 0x170fc2a5, redzone 2: 0x170fc2a5.
Slab corruption: start=435cd90a, len=52
Redzone: 0x170fc2a5/0x170fc2a5.
Last user: [<101c04e4>](journal_alloc_journal_head+0x28/0xac)
000: 2c 38 76 f4 00 00 00 00 00 00 00 01 00 00 00 00
010: 00 00 00 00 00 00 00 00 4f 66 b9 d8 00 00 00 00
020: 43 5c d9 0a 43 5c d9 0a 00 00 00 00 00 00 00 00
030: 00 00 00 00
Prev obj: start=435cd8c5, len=52
Redzone: 0x0/0x0.
Last user: [<00000000>](_stext+0xefefff80/0x20)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
slab error in cache_alloc_debugcheck_after(): cache `journal_head':
double free, or memory outside object was overwritten
Backtrace:
 [<1014ba94>] cache_alloc_debugcheck_after+0xd0/0x184
 [<1014bf04>] kmem_cache_alloc+0x7c/0xc0
 [<101c04e4>] journal_alloc_journal_head+0x28/0xac
 [<101c0654>] journal_add_journal_head+0xc8/0x13c
 [<101b9ae0>] journal_dirty_data+0x64/0x1dc
 [<101a7d8c>] ext3_journal_dirty_data+0x1c/0x60
 [<101a7b30>] walk_page_buffers+0xe8/0xf4
 [<101a84b4>] ext3_ordered_writepage+0x168/0x1fc
 [<1018d68c>] mpage_writepages+0x2ac/0x3fc
 [<1018b980>] __sync_single_inode+0x5c/0x274
 [<1018bc30>] __writeback_single_inode+0x98/0x16c
 [<1018bee0>] sync_sb_inodes+0x1dc/0x32c
 [<1018c0ec>] writeback_inodes+0xbc/0xd8
 [<10147b08>] background_writeout+0xc4/0x11c
 [<1014884c>] __pdflush+0x134/0x204
 [<1014893c>] pdflush+0x20/0x2c

435cd906: redzone 1: 0x170fc2a5, redzone 2: 0x170fc2a5.
Slab corruption: start=435cd90a, len=52
Redzone: 0x170fc2a5/0x170fc2a5.
Last user: [<101c04e4>](journal_alloc_journal_head+0x28/0xac)
000: 2c 38 77 30 00 00 00 00 00 00 00 01 00 00 00 00
010: 00 00 00 00 00 00 00 00 4f 66 b9 d8 00 00 00 00
020: 43 5c d9 0a 43 5c d9 0a 00 00 00 00 00 00 00 00
030: 00 00 00 00
Prev obj: start=435cd8c5, len=52
Redzone: 0x0/0x0.
Last user: [<00000000>](_stext+0xefefff80/0x20)
000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
slab error in cache_alloc_debugcheck_after(): cache `journal_head':
double free, or memory outside object was overwritten
Backtrace:
 [<1014ba94>] cache_alloc_debugcheck_after+0xd0/0x184
 [<1014bf04>] kmem_cache_alloc+0x7c/0xc0
 [<101c04e4>] journal_alloc_journal_head+0x28/0xac
 [<101c0654>] journal_add_journal_head+0xc8/0x13c
 [<101b9ae0>] journal_dirty_data+0x64/0x1dc
 [<101a7d8c>] ext3_journal_dirty_data+0x1c/0x60
 [<101a7b30>] walk_page_buffers+0xe8/0xf4
 [<101a84b4>] ext3_ordered_writepage+0x168/0x1fc
 [<1018d68c>] mpage_writepages+0x2ac/0x3fc
 [<1018b980>] __sync_single_inode+0x5c/0x274
 [<1018bc30>] __writeback_single_inode+0x98/0x16c
 [<1018bee0>] sync_sb_inodes+0x1dc/0x32c
 [<1018c0ec>] writeback_inodes+0xbc/0xd8
 [<10147b08>] background_writeout+0xc4/0x11c
 [<1014884c>] __pdflush+0x134/0x204
 [<1014893c>] pdflush+0x20/0x2c

---

And on and on. Then the oops, and then a reset by the automatic reset
code. I assume this means that someone overwrote the slab sentinel?
How do we track down the rogue writer?

c.


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From: Max Grabert <parisc@gmail.com>
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Subject: Re: [parisc-linux] Matrox Mystique video card NOT initialized on HP Visualize 785/B2000 with 2.6.12-rc6-pa1kernel
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Xref: news.gmane.org gmane.linux.ports.parisc:22854

On 7/1/05, J. L. Lee <jllee@singnet.com.sg> wrote:
>  Hi,
>=20
>  I have now upgraded to Linux Kernel 2.6.12-rc6-pa1 but am still having
> problems in getting Matrox Mystique video card up and running, i.e. the c=
ard
> did not get initialized. At least it didn't cause Kernel panic as it did =
in
> 2.6.8.  (The driver is compiled into the kernel.)

Have you read the FAQ (http://www.parisc-linux.org/faq/graphics-howto.html)=
 ?
Especially this bit:

"But some graphics drivers might have minor issues.
E.g. to ensure the Matrox Millenium graphics card will be initialized prope=
rly=20
one must physically disconnect the computer from the power line before=20
(re)booting - it is not sufficient to just press the power-off button."

  Max



From - Thu Nov 08 21:33:38 2018
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Trident video card caused Kernel Panic on HP
	Visualize 785/B2000 with rebuilt 2.6.11-rc6-pa1 kernel
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On Fri, Jul 01, 2005 at 08:55:21PM +0800, J. L. Lee wrote:
> >Only if the trident card is plugged in under PCI bus 0.
> >The driver needs to map the hard coded address to some PCI resource.
> >What does your "lspci -v" output say?

Lee,
Can you please post the "lspci -v" output?

> Pls adv if by 'PCI bus 0' you mean the first (counting from the top of the 
> box) available PCI slot (4 slots in mine) in my B2000?

No. PCI Bus != slot. Normally parisc machines don't have
slots on PCI bus 0 - that's usually reserved for "built-in" devices.

> >You could hack around this with "#ifndef CONFIG_PARISC"
> >and hardcode the "chip_id" to the model you have.
> >You could then find out if the rest of the code has a chance of working.
> 
> Where can I find the line "#ifndef CONFIG_PARISC" and how to hardcode the 
> "chip_id" to the model I have? Where can I get the "chip_id" info? by 
> 'lspci -v' & 'cat /proc/iomem'?

Sorry, sounds like my advice is a bit beyond your current skill level.
Can someone cook up a patch for him to try?

grant
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Please reply on list.

> 1) Your free-listing of locks does not appear to be thread safe;
>     I.E: Protected from concurrent changes.
> 
> But then, perhaps my mind is going and I just did not
> read the code closely enough.

They are protected by a spinlock.

> 2) How about an alternative implementation?
> Based on 4,096 byte pages;
> 
> Using the find_[first|last]_[zero|one] asm routines;
> 
> As I recall, they only go to 64 bits currently but only
> require 3 instructions per binary radix (add 6 instructions
> for 256 bits);
> 
> First 16 bytes of the page - your current header;
> Second 16 bytes of the page - bitmap of available locks;

Why do you need a bitmap?

> First bit of the bitmap represents the current header -
> use this to lock the page list (currently called free-list);
> 
> Second bit of the bitmap represents the bitmap -
> use this to lock the bitmap;

how do you use a bit to do locking?

> The remaining 254 bits/lock structures per page are usable.

randolph
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Subject: ATI 3D Rage II+ Video Card
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Hi,

If you are interested, followiong are some test results I carried out while 
trying to bring up an ATI 3D Rage II+ video card on my B2000 which runs on 
Linux kernel 2.6.12-rc6-pa1.

The video card outputs from 'lspci -v' are:

0000:01:01.0 VGA compatible controller: ATI Technologies Inc 3D Rage II+ 
215GTB [Mach64 GTB] (rev 9a) (prog-if 00 [VGA])
	Flags: bus master, stepping, medium devsel, latency 255
	Memory at fa000000 (32-bit, non-prefetchable) [size=16M]
	I/O ports at 12000 [size=256]
	Memory at f4800000 (32-bit, non-prefetchable) [size=4K]
	Expansion ROM at f4820000 [disabled] [size=128K]

Test 1) Compiled only ATI Mach64 (no other ATI bits were included) driver 
as a module while 'frame buffer', 'video helper', 'tile blitting' and 'HP 
STI frame buffer' were compiled into the kernel. (No other video drivers 
were selected):

Result 1.1) The driver module was not loaded automatically though the video 
card was in place. Did 'lsmod' no 'atyfb' module was found.

Result 1.2) Entered command 'modprobe atyfb' nothing happened (no signals 
were detected although connection was reported OK by the HP910 monitor). 
Did a 'lsmod' 'atyfb' driver was listed among others.

Test 2) Compiled ATI Mach64 (no other ATI bits were included) driver along 
with 'frame buffer', 'video helper', 'tile blitting' and 'HP STI frame 
buffer' into the kernel. (No other video drivers were selected):

Result 2.1) Again nothing happened. Checked 
'/lib/modules/2.6.12-rc6-pa1/kernel/drivers' no 'video' subdirectory was 
found. I assumed this is normal as I have not selected any video drivers to 
be compiled as modules.

Result 2.2) The boot up messages related to video drivers did not show any 
messages referencing the ATI driver. The relevant output are:

STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f4820000 (128 kB), fb at fd000000 (16 MB)
     id 35acda16-9a02587, conforms to spec rev. 8.0c
     graphics card name: HPA4982A
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
stifb: 'HPA4982A' (id: 0x35acda16) not supported.
Generic RTC Driver v1.07



I will continue to add in other related ATI drivers one bit at a time to 
see if the situation will change. I will only compile the drivers into the 
kernel to save time.

In the meanwhile, if you have any suggestions pls let me know.

Rgds,
Lee




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Hi,

Just wonder, every time I run 'make modules_install' in Linux 
2.6.12-rc6-pa1 it always ended with the following line:

if [ -r System.map -a -x /sbin/depmod ]; then /sbin/depmod -ae -F 
System.map  2.
6.12-rc6-pa1; fi


Did the 'make modules_install' complete its task or it stopped prematurely? 
Pls adv.


Thanks,
Lee


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Hello Lee,


J. L. Lee wrote:
> Hi,
> 
> If you are interested, followiong are some test results I carried out 
> while trying to bring up an ATI 3D Rage II+ video card on my B2000 which 
> runs on Linux kernel 2.6.12-rc6-pa1.
> 
> The video card outputs from 'lspci -v' are:
> 
> 0000:01:01.0 VGA compatible controller: ATI Technologies Inc 3D Rage II+ 
> 215GTB [Mach64 GTB] (rev 9a) (prog-if 00 [VGA])
>     Flags: bus master, stepping, medium devsel, latency 255
>     Memory at fa000000 (32-bit, non-prefetchable) [size=16M]
>     I/O ports at 12000 [size=256]
>     Memory at f4800000 (32-bit, non-prefetchable) [size=4K]
>     Expansion ROM at f4820000 [disabled] [size=128K]
> 
Iirc for such ATI 3D Rage on a non-i386 platform you would have to select:

  CONFIG_FB_ATY_XL_INIT: (sic "to support booting a Rage XL without BIOS support.")

i.e. something like in your make menuconfig:

<M>   ATI Mach64 display support
[*]     Mach64 CT/VT/GT/LT (incl. 3D RAGE) support
[ ]       Mach64 generic LCD support (EXPERIMENTAL) (NEW)
[*]       Rage XL No-BIOS Init support

Hth,
	Joel
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On Thu, Jun 30, 2005 at 11:51:02AM +0100, Christopher James Weatherby wrote:
> Hi Scott,
>          I've had the same problem with my B132L, and pci cards.
>  Its all to do with the Firmware version your machine is running.
>  In the later versions of the Firmware , HP, in its wisdom decided to
> prevent any non-supported cards (from the cards id, rather than the
> chipsets), from running on their workstations, and
> prevent the machine from booting, if one was inserted.

No. HP is not just being obnoxious here.
This was implemented to prevent silent data corruption. 
In certain configurations (e.g B132L and a few other workstations),
Dino version 3.0 and older would silently corrupt data if the address
of the dino register passed over the bus as data.

A service note was published in ~1998-1999 time frame covering this.
Searching parisc-linux mailing list for "dino corruption" I didn't
find any direct references. I advise searching the HP website
directly. Or does some other HP person have a direct reference?


> My machine used to
> happily boot with a wide range of PCI cards, but stopped when I upgraded to
> the last Firmware version (6.1, I think).
>  I think the only solution is to find an older version of the firmware, and
> downgrade the machine. 

No. The only solution is to replace the machine with one
that is repaired. Sorry. :^(

> However I've never been able to find older versions of the firmware for a
> B132L on HP's patch/firmware site (http://itrc.hp.com/ /
> ftp://ftp.itrc.hp.com/ )

That's becuase it's a Bad Idea (tm). That's not by accident.

grant
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> This w-e, I am trying to grab the new cvs 2.6.13-rc1 but:
> cvs [login aborted]: connect to cvs.parisc-linux.org(192.25.206.14):2401 
> failed: Connection timed out

The machine is down, and it's a long weekend in the US so it may take 
another day or two for somebody to go in and fix it. willy has already 
tried to reboot it remotely but that doesn't seem to be working.

That machine has been crashing a lot recently. Looks like we have some 
sort of kernel bug that is getting triggered quite easily on that box :(

randolph
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> Did the 'make modules_install' complete its task or it stopped prematurely? 
> Pls adv.

Another related item is 'make install'.  In 2.6.10, it did a nicer job
of installing the kernel, and the vmlinux, config and System.map links.
It also searched for palo.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > good news with gcc-4.0 (debian pakage) and '-mfixed-range=fr6-fr21,fr27-fr31'
> > 
> >     o 2.6.9-rc2-pa1 seems to works as fine as with original option
> >     o 2.6.9-rc2-pa13 the same 
> > 
> > (just have to backport some small stuff to  reach to compile kernels)
> > 
> > I apply my stress test (tar loops + kernel build loops) during a full day
> > for each one without any pb ;-)
> > 
> > I can now try a step forward: 2.6.10-pa + gcc-4.0, ...

I'll have to try a gcc-4.0 built kernel to see if it improves things
on the c3k.

Just a note, a patch to fix the function pointer canonicalization
issue that you and others noticed was installed Friday to the 4.0 branch,
and Saturday to the GCC head.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] [RFC] Alternative implementation of glibc spinlocks
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Xref: news.gmane.org gmane.linux.ports.parisc:22864

In order to satisfy the ldcw address alignment requirements of the
PA architecture, currently in glibc we implement locks in an
ingenious but rather difficult to manage way. We define a spinlock as
an array of 4 ints (16-bytes) at during lock time we select the
individual word that has correct alignment, and use that to do locking. 

This works, but experience has shown that it makes glibc implementation
and merging to upstream rather difficult. glibc is full of assumptions
that a spinlock is an "int", and, while it is getting better, there is
still a lot of code that assumes an uninitialized lock has the value "0"

There has been some proposals to redo our locking infrastructure. For
example, see willy's proposal at http://wiki.parisc-linux.org/Locks
This solves the "initialize to 0" problem, but it still makes glibc
implementation difficult because of the scalar lock assumption.

Attached is a compiled but untested code snippet that contains an
alternative proposal for how to handle spinlocks in glibc. Actual locks
are allocated dynamically and lazily. The exposed glibc lock type is
simply a "cookie" to the actual lock. This allows glibc to still
think of a lock as a scalar. Some obvious downsides are:

1) We are moving more compile-time work to run-time; requires memory
   allocation at run-time, potentially slow.
2) The pthread interface allows spinlock locking to fail, and this
   code may fail a locking operation if memory cannot be allocated,
   but most code probably don't handle this case and may deadlock
   or function incorrectly.
3) The code is not 64-bit clean, although that can be fixed if needed
   by making the lock cookie an index.

There are probably other problems. I *think* this code still works with
locks in shared memory, but I may be missing some cases.

Comments?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


#include <stdio.h>
#include <string.h>
#include <sys/mman.h>
#include <assert.h>
#include <errno.h>

typedef int lock_t;

/* Exported interface */
int spin_init(lock_t *lock);
int spin_destroy(lock_t *lock);
int spin_lock(lock_t *lock);
int spin_unlock(lock_t *lock);
int spin_trylock(lock_t *lock);
int spin_is_locked(lock_t *lock);

/* Implementation */

/* The idea of this implementation is that each lock_t points to
 * a dynamically allocated, properly aligned lock.
 *
 * We manage these dynamically aligned locks as pages of locks. Each
 * lock page contains a header that contains a simple freelist of
 * lock objects.
 */

#define PAGESIZE 4096

struct lock_page;

/* An internal lock is a 16-byte structure that is allocated aligned
 * to a 16-byte boundary. The first word of the lock structure is
 * actually used to do ldcw. The other fields can be used for other
 * accounting purposes.
 */
struct internal_lock {
	int lockword;
	struct lock_page *page;
	short next;
	short pad1;
	int pad2;
};

/* Locks are allocated in pages; each page contains this header. */
struct lock_page_hdr {
	struct lock_page *next; /* Chain together allocated pages */
	short freelist; /* First available lock index in this page */
	/* Pad to 16-bytes, not really needed, but just to make
	 * it explicit.
	 */
	unsigned short pad1[3];
	int pad2;
};

#define LOCKS_PER_PAGE ((PAGESIZE - sizeof(struct lock_page_hdr))/sizeof(struct internal_lock))

struct lock_page {
	struct lock_page_hdr hdr;
	struct internal_lock locks[LOCKS_PER_PAGE];
};

/* Internal data */
static struct internal_lock __lock __attribute__((aligned(16))) = { 1, 0, 0, 0, 0 };
static struct lock_page *__lock_pages;

static int
__ldcw(void *a)
{
	int ret;
	__asm__ __volatile__("ldcw 0(%1),%0" : "=r" (ret) : "r" (a));
	return ret;
}

static void
__raw_spin_lock(struct internal_lock *l)
{
	while (__ldcw(&l->lockword))
		while (l->lockword == 0)
			/* spin */ ;
}

static void
__raw_spin_unlock(struct internal_lock *l)
{
	l->lockword = 0;
}

static lock_t
__allocate_lock(void)
{
	struct lock_page *p;
	short target;

	__raw_spin_lock(&__lock);
	for (p = __lock_pages; p != NULL; p = p->hdr.next)
		if (p->hdr.freelist >= 0)
			break;

	if (p == NULL) {
		void *m;
		int i;
		struct internal_lock *l;

		m = mmap(0, PAGESIZE, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_SHARED, -1, 0);
		if (m == MAP_FAILED) {
			__raw_spin_unlock(&__lock);
			return ENOMEM;
		}
		p = (struct lock_page *)m;
		p->hdr.freelist = 0;

		/* Initialize lock linked list */
		for (i = 0; i < LOCKS_PER_PAGE; i++) {
			l = &p->locks[i];
			l->lockword = 1;
			l->page = p;
			l->next = i + 1;
		}
		l->next = -1;

		p->hdr.next = __lock_pages;
		__lock_pages = p;
	}

	assert(p && p->hdr.freelist >= 0);

	target = p->hdr.freelist;
	p->hdr.freelist = p->locks[target].next;
	p->locks[target].next = -1;
	
	__raw_spin_unlock(&__lock);

	return (int)&p->locks[target];
}

static int
__free_lock(lock_t lock)
{
	struct lock_page *p;
	struct internal_lock *l;

	__raw_spin_lock(&__lock);
	l = (struct internal_lock *)lock;
	p = l->page;

	l->next = p->hdr.freelist;
	p->hdr.freelist = l - &p->locks[0];
	__raw_spin_unlock(&__lock);

	return 0;
}

static struct internal_lock *
__find_lock(lock_t lock)
{
	return (struct internal_lock *)lock;
}

int spin_init(lock_t *lock)
{
	*lock = __allocate_lock();
	if (*lock == 0)
		return ENOMEM;
	return 0;
}

int spin_destroy(lock_t *lock)
{
	if (*lock)
		return __free_lock(*lock);
	return 0;
}

int spin_lock(lock_t *lock)
{
	struct internal_lock *l;

	/* lazy lock init */
	if (*lock == 0) {
		if (spin_init(lock) != 0)
			return EINVAL;
	}

	l = __find_lock(*lock);
	if (!l)
		return EINVAL;

	__raw_spin_lock(l);
	return 0;
}

int spin_unlock(lock_t *lock)
{
	struct internal_lock *l;

	/* Assume unallocated locks are unlocked */
	if (*lock == 0)
		return 0;

	l = __find_lock(*lock);
	if (!l) 
		return EINVAL;

	__raw_spin_unlock(l);
	return 0;
}

int spin_trylock(lock_t *lock)
{
	struct internal_lock *l;

	/* lazy lock init */
	if (*lock == 0) {
		if (spin_init(lock) != 0)
			return EINVAL;
	}

	l = __find_lock(*lock);
	if (!l)
		return EINVAL;

	return __ldcw(&l->lockword) != 0 ? 0 : EBUSY;
}

int spin_is_locked(lock_t *lock)
{
	struct internal_lock *l;

	/* Assume unallocated locks are unlocked */
	if (*lock == 0)
		return 0;

	l = __find_lock(*lock);
	if (l)
		return l->lockword == 0;

	/* Assume invalid locks are unlocked */
	return 0;
}
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [gcc] should we teach gcc some new tricks?
Date: Mon, 4 Jul 2005 16:51:31 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:22865

Hello Dave,

> 
> > > good news with gcc-4.0 (debian pakage) and '-mfixed-range=3Dfr6-fr2=
1,fr27-fr31'
> > > 
> > >     o 2.6.9-rc2-pa1 seems to works as fine as with original option
> > >     o 2.6.9-rc2-pa13 the same 
> > > 
> > > (just have to backport some small stuff to  reach to compile kernel=
s)
> > > 
> > > I apply my stress test (tar loops + kernel build loops) during a fu=
ll
> day
> > > for each one without any pb ;-)
> > > 
> > > I can now try a step forward: 2.6.10-pa + gcc-4.0, ...
> 
> I'll have to try a gcc-4.0 built kernel to see if it improves things
> on the c3k.
> 
cool ;-)

btw for the 2.6.10-pa11 I had to apply those small backports:
diff -NaurX dontdiff linux-2.6.10-pa10-20050112/arch/parisc/Makefile linu=
x-2.6.10-pa10-20050112-gcc40/arch/parisc/Makefile
--- linux-2.6.10-pa10-20050112/arch/parisc/Makefile     2005-01-04 07:37:=
20.000000000
+0100
+++ linux-2.6.10-pa10-20050112-gcc40/arch/parisc/Makefile       2005-07-0=
1
17:30:00.000000000 +0200
@@ -44,6 +44,7 @@
 # If that gets optimized, we might need to disable the use of fpregs in
the
 # kernel.
 #cflags-y      +=3D -mdisable-fpregs
+cflags-y       +=3D -mfixed-range=3Dfr6-fr21,fr27-fr31
 
 # Without this, "ld -r" results in .text sections that are too big
 # (> 0x40000) for branches to reach stubs.
diff -NaurX dontdiff linux-2.6.10-pa10-20050112/drivers/eisa/Makefile lin=
ux-2.6.10-pa10-20050112-gcc40/drivers/eisa/Makefile
--- linux-2.6.10-pa10-20050112/drivers/eisa/Makefile    2003-09-08 23:42:=
02.000000000
+0200
+++ linux-2.6.10-pa10-20050112-gcc40/drivers/eisa/Makefile      2005-07-0=
1
18:12:25.000000000 +0200
@@ -1,8 +1,5 @@
 # Makefile for the Linux device tree
 
-# Being anal sometimes saves a crash/reboot cycle... ;-)
-EXTRA_CFLAGS    :=3D -Werror
-
 obj-$(CONFIG_EISA)             +=3D eisa-bus.o
 obj-${CONFIG_EISA_PCI_EISA}     +=3D pci_eisa.o
 
diff -NaurX dontdiff linux-2.6.10-pa10-20050112/include/linux/fb.h linux-=
2.6.10-pa10-20050112-gcc40/include/linux/fb.h
--- linux-2.6.10-pa10-20050112/include/linux/fb.h       2004-11-30 07:45:=
36.000000000
+0100
+++ linux-2.6.10-pa10-20050112-gcc40/include/linux/fb.h 2005-07-01 18:38:=
07.000000000
+0200
@@ -857,7 +857,6 @@
 
 /* drivers/video/modedb.c */
 #define VESA_MODEDB_SIZE 34
-extern const struct fb_videomode vesa_modes[];
 extern void fb_var_to_videomode(struct fb_videomode *mode,
                                struct fb_var_screeninfo *var);
 extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
@@ -902,6 +901,8 @@
        u32 flag;
 };
 
+extern const struct fb_videomode vesa_modes[];
+
 struct fb_modelist {
        struct list_head list;
        struct fb_videomode mode;
=3D=3D=3D=3D<>=3D=3D=3D=3D

And eventualy:
diff -NaurX dontdiff linux-2.6.10-pa10-20050112/Makefile linux-2.6.10-pa1=
0-20050112-gcc40/Makefile
--- linux-2.6.10-pa10-20050112/Makefile 2005-01-10 12:00:43.000000000 +01=
00
+++ linux-2.6.10-pa10-20050112-gcc40/Makefile   2005-07-01 17:29:16.00000=
0000
+0200
@@ -201,7 +201,7 @@
          else if [ -x /bin/bash ]; then echo /bin/bash; \
          else echo sh; fi ; fi)
 
-HOSTCC         =3D gcc
+HOSTCC         =3D gcc-4.0
 HOSTCXX        =3D g++
 HOSTCFLAGS     =3D -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
 HOSTCXXFLAGS   =3D -O2
@@ -318,7 +318,7 @@
 
 AS             =3D $(CROSS_COMPILE)as
 LD             =3D $(CROSS_COMPILE)ld
-CC             =3D $(CROSS_COMPILE)gcc
+CC             =3D $(CROSS_COMPILE)gcc-4.0
 CPP            =3D $(CC) -E
 AR             =3D $(CROSS_COMPILE)ar
 NM             =3D $(CROSS_COMPILE)nm
=3D=3D=3D=3D<>=3D=3D=3D=3D

Still have to find back what should still have to be backported (as kyle
did for 2.6.8) for b2k ;-)

> Just a note, a patch to fix the function pointer canonicalization
> issue that you and others noticed was installed Friday to the 4.0 branc=
h,
> and Saturday to the GCC head.
> 
Thanks for feedback (I will try it asap),

    Joel


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Subject: Re: [parisc-linux] [RFC] Alternative implementation of glibc spinlocks
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Xref: news.gmane.org gmane.linux.ports.parisc:22866

On Mon, Jul 04, 2005 at 01:49:00PM +0800, Randolph Chung wrote:
> > Copying a lock creates a new lock with the same status as the old lock.
> > I don't think it's that flawed, it's the same idea as copying a
> > structure with a lock inside. You don't need an explicit copy operator,
> > it should just work (tm).
> 
> If a currently locked lock is copied, is it still locked? If another
> thread copies a locked lock, can it now enter a critical section? Does
> the copied lock refer to the same lock object or a different one?

If the lock is locked when copied, the copy is locked.

Wether or not the thread can enter the critical section is dependant
upon the programmer. The programmer would have to ensure the lock copy
was atomic by protecting the structure. Then it could point the two
threads at the new copy, and delete the old copy.

A lock is a lock. It doesn't refer to anything unless you the programmer
give it some meaning.

The copy of the lock *can* have a different lock cookie, if that's what
you're asking? It just has to have the same status :)

If you serliaze two locks with the same cookie, the rematerialized locks
IMO *can* be allowed to have different cookies.

> > - A lock that was serliazed may actually coincide with a lock already in
> >   the system. The code can't tell which is which. Unless we use another
> >   level of indirection.
> 
> I don't see how you can fix this even with indirection?

You're right, we can't. After 2^32 locks are initialized the value
wraps. That's a fundamental problem with reusing the lock storage. If
the lock were to be serialized with the object it could uses the object
namespace as a level of indirection. Providing our own level of
indirection with a single data word is difficult. It gets better with
two words... even better with three words... but where will our
performance go?

If we add a level of indirection we insert a lookup requirement. The
lookup needs to determine if it has to materialize a lock, index load
the lock from the table, which might be on a faraway page (requiring
more searching), and our performance is shot.

We could get a full 32-bit address space if we used a space register to
store the locks into a different space? The space could also be shared
with other processes in the same way shared libraries would have been
implemented using space register?

It still doesn't solve our lock rematerializing issue. I think the issue
will never go away if we have to provide our own lock cookie namespace 
management.

> > It seems to me that it should be perfectly legal for two threads,
> > working on a datastructure, to be able to serialize that data to disk,
> > read it back and continue working in a synchronized fashion without the
> > locks going haywire.
> 
> You can serialize the data, but to serialize a lock seems to be
> questionable. I remain unconvinced that real life programs rely on this
> behavior, but I'm willing to be shown an example :)

A threaded lisp interpreter writes a running image to disk, only a
partial write and not the entire address space. It expects to reload
this from disk and start a thread up at the same place. If it has lock
aliasing other threads might collide with the loaded lock cookie.

What about gnome's object managment system? Surely it's threaded at some
level, and it requires that objects have locks for their thread critical
data. Perhaps you want to lock an objects data, and push it across the
network. The remote system only has serialized state information and
would need to rematerialize a lock on a different host :)

I think having the lock data with the lock is the only reasonable
solution.

> >>I suppose we could use an extension of the above trick. If a lock is
> >>initialized shared (by setting pshared=true in pthread_spin_init), the
> >>cookie will have a bit to indicate this, and the lock memory is
> >>initialized in a shared memory segment with a well known name. If
> >>another process comes along and gets ahold of such a lock, it would then
> >>attach to the shared memory segment and then get access to the same lock
> >>object in memory.
> > I like this idea!
> > Though I don't like my personal idea of forcing an equal mapping at a
> > high address. Instead I think a table for indirection would work.
> 
> Yes. Forcing a fixed mapping seems to be fragile.

That's why I liked your idea of shm_open better.

> > When I feel the weight of a possibly complex implementation getting me
> > down, I think over a single question:
> > 
> > "What problem are we trying to solve?"
> > 
> > - The core glibc maintainers don't care about odd-ball arches?
> > - Uninitialized locks are trouble?
> > - "Locks are int" is not true?
> > 
> > The last two, make it easier to get past the first problem :)
> 
> Well, ultimately I hope we would decide on whether or not to do this
> based on technical merit rather than the politics of glibc maintainence.
> Is it more natural to deal with an implementation that uses scalar lock
> objects? Can it really work efficiently? Can we ensure compliance with
> the appropriate standards?

Politics is a part of life, and removing it from the equation means you
are missing important information when making a decision.

I don't know what "more natural" means in this case. It's not a
measurable quantity. A the POSIX pthread interface it's already a
structure, so what difference does it make, the internals are opaque.

A deferred dynamically allocated lock system faces cookie namespace
problems.

Compliance with the standards is important, but second to a robust and
working implementation under minimum defined criteria.

Let me run a thought an experiment, let me construct the most idiotic
implementation of "scalar lock" that comes to mind...

Implementation of Scalar Locks (Take 1)
=======================================

a. glibc has a single aligned master lock.
b. Every thread uses a scalar for a lock.
c. The pthread functions do the following:
	- If the sig_atomic_t lock != 0
          Use LWS CAS to take the lock [1]
          = Done.
	- Block signals.
	- Increment the sig_atomic_t lock.
	- Acquire a master lock.
	- Twiddle a bit in the scalar lock.
	- Unlock a master lock.
	- Decrement the sig_atomic_t lock.
	- Unblock signals.

Cons:
= Signal handling latency goes up when doing lots of locking.
= A kill signal while taking the lock requires a fallback to
  the kernel for protection against concurrent accesses.

Pros:
= Simple scalar locks.
= The master locks can be extended to N master locks
  whose selection is based on a hash of the address
  of the scalar lock, improving SMP performance.
= No lock cookie namespace management.
= Locks can be copied.
= Locks can be serialized.

[1] This is because we took a signal in the critical section
of the locking code, and we need the kernel to arbitrate the lock
access.

Actually, this sorta worked out nice. What do you think?

c.

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Subject: Re: [parisc-linux] [RFC] Alternative implementation of glibc spinlocks
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> On Mon, Jul 04, 2005 at 01:49:00PM +0800, Randolph Chung wrote:
> > > Copying a lock creates a new lock with the same status as the old lock.
> > > I don't think it's that flawed, it's the same idea as copying a
> > > structure with a lock inside. You don't need an explicit copy operator,
> > > it should just work (tm).
> > 
> > If a currently locked lock is copied, is it still locked? If another
> > thread copies a locked lock, can it now enter a critical section? Does
> > the copied lock refer to the same lock object or a different one?
> 
> If the lock is locked when copied, the copy is locked.
> 
> Wether or not the thread can enter the critical section is dependant
> upon the programmer. The programmer would have to ensure the lock copy
> was atomic by protecting the structure. Then it could point the two
> threads at the new copy, and delete the old copy.

Seems like a recipe for disaster.  How do you ensure that each thread
actually is using the new copy?  It seems to me that this requires another
layer of locking around each lock.  All operations on the lock would have
to be done inside the outer lock.  This increases the possibility of
deadlock and the overhead in acquiring and releasing a lock.  Then,
you are going to tell me that you want the capability to move the outer
protection lock...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] [RFC] Alternative implementation of glibc spinlocks
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On Sat, Jul 02, 2005 at 06:59:39AM -0700, Randolph Chung wrote:
> 1) We are moving more compile-time work to run-time; requires memory
>    allocation at run-time, potentially slow.
> 2) The pthread interface allows spinlock locking to fail, and this
>    code may fail a locking operation if memory cannot be allocated,
>    but most code probably don't handle this case and may deadlock
>    or function incorrectly.
> 3) The code is not 64-bit clean, although that can be fixed if needed
>    by making the lock cookie an index.

Randolph,

This is awesome! This is taking the deferred ideas to the extreme! :)
I like the idea, but I don't think it will bake (See my comments about
lock serializing, and shared memory).
 
> There are probably other problems. I *think* this code still works with
> locks in shared memory, but I may be missing some cases.
> 
> Comments?

What about?

a) Lock serializing (essentially lock copying)
b) Lock copying with differing destination alignment.

Our current implementation only supports copying a lock to a destination
that has the same alignment. In reality this is virtually 100% of all the
cases.

Our current implementation also supports serializing the lock to disk
and reading it back again. I've seen some gnome code do weird things
with object state serialization, mind you the lock has a level of
indirection and the addresses are fixed up, in this case though that
sort of thing wouldn't work.

The cookie implementation trivially solves b), but a) is harder.

I believe that compiling and running gnome is the best test of lock
serializing and copying. There is probably a number of libstdc++ test
cases that can test this as well? Dave would know better there.
 
> randolph
> -- 
> Randolph Chung
> Debian GNU/Linux Developer, hppa/ia64 ports
> http://www.tausq.org/
> 
> 
> #include <stdio.h>
> #include <string.h>
> #include <sys/mman.h>
> #include <assert.h>
> #include <errno.h>
> 
> typedef int lock_t;
> 
> /* Exported interface */
> int spin_init(lock_t *lock);
> int spin_destroy(lock_t *lock);
> int spin_lock(lock_t *lock);
> int spin_unlock(lock_t *lock);
> int spin_trylock(lock_t *lock);
> int spin_is_locked(lock_t *lock);
> 
> /* Implementation */
> 
> /* The idea of this implementation is that each lock_t points to
>  * a dynamically allocated, properly aligned lock.
>  *
>  * We manage these dynamically aligned locks as pages of locks. Each
>  * lock page contains a header that contains a simple freelist of
>  * lock objects.
>  */
> 
> #define PAGESIZE 4096
> 
> struct lock_page;
> 
> /* An internal lock is a 16-byte structure that is allocated aligned
>  * to a 16-byte boundary. The first word of the lock structure is
>  * actually used to do ldcw. The other fields can be used for other
>  * accounting purposes.
>  */
> struct internal_lock {
> 	int lockword;
> 	struct lock_page *page;
> 	short next;
> 	short pad1;
> 	int pad2;
> };
> 
> /* Locks are allocated in pages; each page contains this header. */
> struct lock_page_hdr {
> 	struct lock_page *next; /* Chain together allocated pages */
> 	short freelist; /* First available lock index in this page */
> 	/* Pad to 16-bytes, not really needed, but just to make
> 	 * it explicit.
> 	 */
> 	unsigned short pad1[3];
> 	int pad2;
> };
> 
> #define LOCKS_PER_PAGE ((PAGESIZE - sizeof(struct lock_page_hdr))/sizeof(struct internal_lock))
> 
> struct lock_page {
> 	struct lock_page_hdr hdr;
> 	struct internal_lock locks[LOCKS_PER_PAGE];
> };
> 
> /* Internal data */
> static struct internal_lock __lock __attribute__((aligned(16))) = { 1, 0, 0, 0, 0 };
> static struct lock_page *__lock_pages;
> 
> static int
> __ldcw(void *a)
> {
> 	int ret;
> 	__asm__ __volatile__("ldcw 0(%1),%0" : "=r" (ret) : "r" (a));
> 	return ret;
> }
> 
> static void
> __raw_spin_lock(struct internal_lock *l)
> {
> 	while (__ldcw(&l->lockword))
> 		while (l->lockword == 0)
> 			/* spin */ ;
> }
> 
> static void
> __raw_spin_unlock(struct internal_lock *l)
> {
> 	l->lockword = 0;
> }

If __raw_spin_unlock is inlined in the same function with
__raw_spin_lock, we may need to force a memory barrier to keep the
ordering correct?
 
> static lock_t
> __allocate_lock(void)
> {
> 	struct lock_page *p;
> 	short target;
> 
> 	__raw_spin_lock(&__lock);
> 	for (p = __lock_pages; p != NULL; p = p->hdr.next)
> 		if (p->hdr.freelist >= 0)
> 			break;
> 
> 	if (p == NULL) {
> 		void *m;
> 		int i;
> 		struct internal_lock *l;
> 
> 		m = mmap(0, PAGESIZE, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_SHARED, -1, 0);

I guess if this replaced the linuxthreads, or nptl implementation we can
assume that mmap is available and we are already relocated.


> 		if (m == MAP_FAILED) {
> 			__raw_spin_unlock(&__lock);
> 			return ENOMEM;
> 		}
> 		p = (struct lock_page *)m;
> 		p->hdr.freelist = 0;
> 
> 		/* Initialize lock linked list */
> 		for (i = 0; i < LOCKS_PER_PAGE; i++) {
> 			l = &p->locks[i];
> 			l->lockword = 1;
> 			l->page = p;
> 			l->next = i + 1;
> 		}
> 		l->next = -1;
> 
> 		p->hdr.next = __lock_pages;
> 		__lock_pages = p;
> 	}
> 
> 	assert(p && p->hdr.freelist >= 0);
> 
> 	target = p->hdr.freelist;
> 	p->hdr.freelist = p->locks[target].next;
> 	p->locks[target].next = -1;
> 	
> 	__raw_spin_unlock(&__lock);
> 
> 	return (int)&p->locks[target];
> }
>
> static int
> __free_lock(lock_t lock)
> {
> 	struct lock_page *p;
> 	struct internal_lock *l;
> 
> 	__raw_spin_lock(&__lock);
> 	l = (struct internal_lock *)lock;
> 	p = l->page;
> 
> 	l->next = p->hdr.freelist;
> 	p->hdr.freelist = l - &p->locks[0];
> 	__raw_spin_unlock(&__lock);
> 
> 	return 0;
> }
> 
> static struct internal_lock *
> __find_lock(lock_t lock)
> {
> 	return (struct internal_lock *)lock;
> }

Why this level of indirection? Have you thought about other indexing
methods other than the address of the lock?
 
> int spin_init(lock_t *lock)
> {
> 	*lock = __allocate_lock();
> 	if (*lock == 0)
> 		return ENOMEM;
> 	return 0;
> }
> 
> int spin_destroy(lock_t *lock)
> {
> 	if (*lock)
> 		return __free_lock(*lock);
> 	return 0;
> }
> 
> int spin_lock(lock_t *lock)
> {
> 	struct internal_lock *l;
> 
> 	/* lazy lock init */
> 	if (*lock == 0) {
> 		if (spin_init(lock) != 0)
> 			return EINVAL;
> 	}
> 
> 	l = __find_lock(*lock);
> 	if (!l)
> 		return EINVAL;
> 
> 	__raw_spin_lock(l);
> 	return 0;
> }
> 
> int spin_unlock(lock_t *lock)
> {
> 	struct internal_lock *l;
> 
> 	/* Assume unallocated locks are unlocked */
> 	if (*lock == 0)
> 		return 0;
> 
> 	l = __find_lock(*lock);
> 	if (!l) 
> 		return EINVAL;
> 
> 	__raw_spin_unlock(l);
> 	return 0;
> }
> 
> int spin_trylock(lock_t *lock)
> {
> 	struct internal_lock *l;
> 
> 	/* lazy lock init */
> 	if (*lock == 0) {
> 		if (spin_init(lock) != 0)
> 			return EINVAL;
> 	}
> 

See my comment below that we need a check for a lock in the initialized
state that has a "locked" state.

We need a check for:

if (*lock == 1) 
  {
    /* Initialize lock held */
  }

> 	l = __find_lock(*lock);
> 	if (!l)
> 		return EINVAL;
> 
> 	return __ldcw(&l->lockword) != 0 ? 0 : EBUSY;
> }
> 
> int spin_is_locked(lock_t *lock)
> {
> 	struct internal_lock *l;
> 
> 	/* Assume unallocated locks are unlocked */

How do you initialize a static lock to a "locked" state code? :)

> 	if (*lock == 0)
> 		return 0;
> 
> 	l = __find_lock(*lock);
> 	if (l)
> 		return l->lockword == 0;
> 
> 	/* Assume invalid locks are unlocked */
> 	return 0;
> }

What happens if you stick this lock in shared memory? Each thread in
each process will see a different lock?

I really think that Dave's implementation, being the simplest works in
99% of the cases, with the only restriction being that a copied lock
must be copied to a destination of the same alignment.

c.

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> a) Lock serializing (essentially lock copying)

I still think "lock copying" is a fundamentally flawed idea, but I think
we can actually support this in a sneaky way.

All you need to serialize is the state of the lock, either it's locked
or not.

We could design the cookie to store this information in the least
significant bit. When somebody tries to access a cookie that doesn't
correspond to an existant lock, we can materialize the lock at that point.

A bigger problem as we discussed on IRC is how to handle locks in shared
memory.

I suppose we could use an extension of the above trick. If a lock is
initialized shared (by setting pshared=true in pthread_spin_init), the
cookie will have a bit to indicate this, and the lock memory is
initialized in a shared memory segment with a well known name. If
another process comes along and gets ahold of such a lock, it would then
attach to the shared memory segment and then get access to the same lock
object in memory.

Any software problem can be solved by adding another layer of
indirection -SMB

:-)

randolph

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Subject: Re: [parisc-linux] [RFC] Alternative implementation of glibc spinlocks
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On Mon, Jul 04, 2005 at 09:59:14AM +0800, Randolph Chung wrote:
> > a) Lock serializing (essentially lock copying)
> 
> I still think "lock copying" is a fundamentally flawed idea, but I think
> we can actually support this in a sneaky way.

Copying a lock creates a new lock with the same status as the old lock.
I don't think it's that flawed, it's the same idea as copying a
structure with a lock inside. You don't need an explicit copy operator,
it should just work (tm).

In the case of a cookie it works great.

> All you need to serialize is the state of the lock, either it's locked
> or not.
> 
> We could design the cookie to store this information in the least
> significant bit. When somebody tries to access a cookie that doesn't
> correspond to an existant lock, we can materialize the lock at that point.

This is exactly what I was thinking, but there is an issue:

- A lock that was serliazed may actually coincide with a lock already in
  the system. The code can't tell which is which. Unless we use another
  level of indirection.

It seems to me that it should be perfectly legal for two threads,
working on a datastructure, to be able to serialize that data to disk,
read it back and continue working in a synchronized fashion without the
locks going haywire.

It would seem that at all costs we don't want to allocate the same lock
address twice. This is wasteful of memory, and possibly the wrong thing
to do if we are serializing objects with the intent to free memory.

> A bigger problem as we discussed on IRC is how to handle locks in shared
> memory.
> 
> I suppose we could use an extension of the above trick. If a lock is
> initialized shared (by setting pshared=true in pthread_spin_init), the
> cookie will have a bit to indicate this, and the lock memory is
> initialized in a shared memory segment with a well known name. If
> another process comes along and gets ahold of such a lock, it would then
> attach to the shared memory segment and then get access to the same lock
> object in memory.

I like this idea!

Though I don't like my personal idea of forcing an equal mapping at a
high address. Instead I think a table for indirection would work.

> ?Any software problem can be solved by adding another layer of
> indirection? -SMB

When I feel the weight of a possibly complex implementation getting me
down, I think over a single question:

"What problem are we trying to solve?"

- The core glibc maintainers don't care about odd-ball arches?
- Uninitialized locks are trouble?
- "Locks are int" is not true?

The last two, make it easier to get past the first problem :)

I like the idea of using the last two bits of the lock to indicate
status, taken or not, and shared or not.

c.

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> Copying a lock creates a new lock with the same status as the old lock.
> I don't think it's that flawed, it's the same idea as copying a
> structure with a lock inside. You don't need an explicit copy operator,
> it should just work (tm).

If a currently locked lock is copied, is it still locked? If another
thread copies a locked lock, can it now enter a critical section? Does
the copied lock refer to the same lock object or a different one?

> - A lock that was serliazed may actually coincide with a lock already in
>   the system. The code can't tell which is which. Unless we use another
>   level of indirection.

I don't see how you can fix this even with indirection?

> It seems to me that it should be perfectly legal for two threads,
> working on a datastructure, to be able to serialize that data to disk,
> read it back and continue working in a synchronized fashion without the
> locks going haywire.

You can serialize the data, but to serialize a lock seems to be
questionable. I remain unconvinced that real life programs rely on this
behavior, but I'm willing to be shown an example :)

>>I suppose we could use an extension of the above trick. If a lock is
>>initialized shared (by setting pshared=true in pthread_spin_init), the
>>cookie will have a bit to indicate this, and the lock memory is
>>initialized in a shared memory segment with a well known name. If
>>another process comes along and gets ahold of such a lock, it would then
>>attach to the shared memory segment and then get access to the same lock
>>object in memory.
> I like this idea!
> Though I don't like my personal idea of forcing an equal mapping at a
> high address. Instead I think a table for indirection would work.

Yes. Forcing a fixed mapping seems to be fragile.

> When I feel the weight of a possibly complex implementation getting me
> down, I think over a single question:
> 
> "What problem are we trying to solve?"
> 
> - The core glibc maintainers don't care about odd-ball arches?
> - Uninitialized locks are trouble?
> - "Locks are int" is not true?
> 
> The last two, make it easier to get past the first problem :)

Well, ultimately I hope we would decide on whether or not to do this
based on technical merit rather than the politics of glibc maintainence.
Is it more natural to deal with an implementation that uses scalar lock
objects? Can it really work efficiently? Can we ensure compliance with
the appropriate standards?

randolph

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On Tue, Jul 05, 2005 at 09:39:00AM +0800, Randolph Chung wrote:
> > If the lock is locked when copied, the copy is locked.
> > 
> > Wether or not the thread can enter the critical section is dependant
> > upon the programmer. The programmer would have to ensure the lock copy
> > was atomic by protecting the structure. Then it could point the two
> > threads at the new copy, and delete the old copy.
> 
> I have to agree with Dave - this seems like a recipe for disaster.

Users do weird things, it's not that hard to send a SIGSTOP to a pair of
threads and do this work.
 
> > If we add a level of indirection we insert a lookup requirement. The
> > lookup needs to determine if it has to materialize a lock, index load
> > the lock from the table, which might be on a faraway page (requiring
> > more searching), and our performance is shot.
> 
> sounds like we are implementing a VM with page tables. We need a TLB! :-)

Yes we do, but in that case we have control over serialization to swap
:)

> > It still doesn't solve our lock rematerializing issue. I think the issue
> > will never go away if we have to provide our own lock cookie namespace 
> > management.
> 
> In any case rematerializing a lock seems iffy.....

Agreed.
 
> > A threaded lisp interpreter writes a running image to disk, only a
> > partial write and not the entire address space. It expects to reload
> > this from disk and start a thread up at the same place. If it has lock
> > aliasing other threads might collide with the loaded lock cookie.
> 
> I'm not sure it can do this without doing fixups after reading from a
> disk image. For example, in many object systems pointers are written to
> disks as UUIDs and when the object is read back from disk the UUID needs
> to be reconverted to a real pointer. I would think the situation is the
> same with locks; to have predictable behavior you have to write
> information about the state of the lock and manage it yourself, instead
> of relying on the underlying representation of the lock.

The situation is not the same with locks, the system pointers could get
serialized as UUID's but then we'd have to go in and write hppa specific
code to also serialize the lock to a special UUID?!

> > I think having the lock data with the lock is the only reasonable
> > solution.
> 
> Perhaps, but "lock data" should not be the internal representation of
> the lock. My reading of the POSIX/SuSv3 pthread spec suggests that the
> interface is designed explicitly to allow locks to be allocated dynamically.

I agree with you :)
 
> > Politics is a part of life, and removing it from the equation means you
> > are missing important information when making a decision.
> 
> Yes, but I don't think we should settle on an implementation that is
> otherwise inferior only to get around the politics of an open source
> project.

What if it means the different between forking and maintaining your own
repository? :)

> > I don't know what "more natural" means in this case. It's not a
> > measurable quantity. A the POSIX pthread interface it's already a
> > structure, so what difference does it make, the internals are opaque.
> 
> s/more natural/easier to implement/ then.

Ok.

> > A deferred dynamically allocated lock system faces cookie namespace
> > problems.
> 
> I think there are two separate "namespace" problems:
> 1) Shared memory locks - this is relatively easy to solve
> 2) Serializable locks - this is difficult

I had pondered using a space register to access locks, and create a
4GB space just for locks :)

> > Compliance with the standards is important, but second to a robust and
> > working implementation under minimum defined criteria.
> 
> I dunno about "second to"....

How about "close second to" ? :)

> > Let me run a thought an experiment, let me construct the most idiotic
> > implementation of "scalar lock" that comes to mind...
> > 
> > Implementation of Scalar Locks (Take 1)
> > =======================================
> > 
> > a. glibc has a single aligned master lock.
> > b. Every thread uses a scalar for a lock.
> > c. The pthread functions do the following:
> > 	- If the sig_atomic_t lock != 0
> >           Use LWS CAS to take the lock [1]
> >           = Done.
> > 	- Block signals.
> > 	- Increment the sig_atomic_t lock.
> > 	- Acquire a master lock.
> > 	- Twiddle a bit in the scalar lock.
> > 	- Unlock a master lock.
> > 	- Decrement the sig_atomic_t lock.
> > 	- Unblock signals.
> 
> Your increment/decrement operations will also need to be done with a LWS.

I think I see what you mean. One thread executing LWS CAS on
scalar_lock, and the other twiddling the sclar_lock bit could happen in
the above algorithm. If I'm going to use LWS CAS it might as well be to
handle the lock itself.
 
I'm *trying* to execute the sequence of insns required to twiddle the
scalar_lock atomically using a mutex provided by ldcw on a masterlock[n],
"n" being selected from a hash of the scalar_lock address.

The problem is that if any thread took a signal, it could face deadlock
if it tries to do any other similar pthread locking function. I thought
myself clever and setup a fallback to LWS CAS.

Though it won't work since LWS CAS uses a set of kernel locks. And two
threads might try to twiddle the lock independantly of eachother in this
case (e.g. kernel lock vs. master lock protecting one scalar lock).

Do we think that LWS CAS could be used effectively to implement locks?

All the test code is in the "userspace" repository under test-lws. I
wrote a small set of routines for it aswell. Perhaps you want to review
that for me to make sure I didn't get anything wrong?

> One undesirable property of this approach seems to be that as the lock
> becomes more contended, you spend an increasing amount of time spinning
> in the kernel (doing your LWS CAS). As you told me last night, this
> means the kernel has interrupts off, so processes are not getting
> scheduled, and your lock contention becomes worse.

Almost right, interrupts are still on, we just don't schedule. The tail
call of schedule is in assembly and it checks to see if you came from
the gateway, if you did then it doesn't schedule (or deliver your
signals). Interrupts have to be left on so I can fault the page back in
from disk if it happens to be swapped out.

c.

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From: "J. L. Lee" <jllee@singnet.com.sg>
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Subject: Setting up IDE CD-ROM on HPPA B2000
Date: Tue, 05 Jul 2005 15:15:20 +0800
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Xref: news.gmane.org gmane.linux.ports.parisc:22873

Hi,

I have seen several postings mentioning about IDE CD-ROM drives crash the 
HPPA boxes while running Linux. I myself also encoutered it repeatedly of 
late after succesfully trying various ways to go round it. Thanks to Max 
Grabert's help, I have now set it up as IDE-SCSI CD-ROM drive and it seems 
to be holding steady so far without me having to try some tricks as before.

If you are interested, followings are what I have done to set up the IDE 
CD-ROM as IDE-SCSI CD-ROM under the patient guidance of Max Grabert:

1) Run 'make menuconfig' (or equivalent), select 'Device drivers -> 
ATA/ATAPI/MFM/RLL support -> SCSI emulation support' to compile as module 
(or into kernel if you prefer);

2) In the same 'make menuconfig' (or equivalent), deselect 'Device drivers 
-> ATA/ATAPI/MFM/RLL support -> Include IDE/ATAPI CDROM support' if it is 
selected;

3) In the same 'make menuconfig' (or equivalent), make sure that required 
CD-ROM file systems are selected under the 'File Systems',

4) Edit palo config file '/etc/palo.conf' to add 'hda=ide-scsi'  at the end 
of the command line entry (the 1st entry);

5) Recompiled the kernel;

6) Run /sbin/palo;

7) If you compile any of the the above drivers as modules, please make sure 
they are also loaded on boot by adding the following lines into /etc/modules:

iso9660
udf
ns87415
ide-scsi
sg
sr_mod

8) Reboot.

Remember from now on your IDE CD-ROM drive will be known as /dev/scdX. 
/dev/scd0 in my case.

Rgds,
Lee

ps. Any downside in setting up IDE CD-ROM as IDE-SCSI CD-ROM?

pps. You might see the following msg but I believe it is harmless:

modprobe -k ide-mod options="hda=ide-scsi"
FATAL: Module ide_mod not found.


pps. You might also see the following msg: (Does 'deprecated for cd 
burning' msg mean that we can burn CDs if we have a CD/RW drive?)

ide-scsi is deprecated for cd burning! Use ide-cd and give dev=/dev/hdX as 
devicescsi1 : SCSI \ host adapter emulation for IDE ATAPI devices Vendor: 
MITSUMI   Model: CD-ROM FX4820T!B  \ Rev: F01M Type: CD-ROM ANSI SCSI 
revision: 02 sg

Attached scsi generic sg0 at scsi0, channel 0, id 6, lun 0,  type 0Attached 
scsi generic sg1 at \ scsi1, channel 0, id 0, lun 0,  type 5sr0: scsi3-mmc 
drive: 48x/48x cd/rw xa/form2 cdda \ trayUniform CD-ROM driver Revision: 
3.20    sr_mod

All modules loaded.




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From: Max Grabert <parisc@gmail.com>
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Subject: Re: [parisc-linux] Setting up IDE CD-ROM on HPPA B2000
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Xref: news.gmane.org gmane.linux.ports.parisc:22874

On 05/07/05, J. L. Lee <jllee@singnet.com.sg> wrote:
> ps. Any downside in setting up IDE CD-ROM as IDE-SCSI CD-ROM?

Yes, DMA  is not supported in ide-scsi.
That means slower transfer rates (around 3MB/s) and higher CPU load.
If you are burning CDs/DVDs this means that it is more likely that
you will have buffer underruns and it limits how fast you can burn your CDs=
.

However ide-scsi used to have better error detection & reporting,
but I think in the last couple of months ide-cd has caught up with
ide-scsi in that repect.

Since it seems that DMA support is broken with the ns87415 IDE chipset
driver anyway it doesn't really matter whether we use ide-scsi or ide-cd
I guess.

> pps. You might see the following msg but I believe it is harmless:
>=20
> modprobe -k ide-mod options=3D"hda=3Dide-scsi"
> FATAL: Module ide_mod not found.

This is because it tries to load the generic IDE driver as a module, but
you have compiled it into the kernel statically.
This is indeed harmless.

> pps. You might also see the following msg: (Does 'deprecated for cd
> burning' msg mean that we can burn CDs if we have a CD/RW drive?)

Yes, you (still) can, but it is not recommended.
cdrecord works fine for me (as root, the usual linux >2.6.8 problem).

   Max
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Subject: Help wanted: Getting Matrox Mystique to run on HPPA B2000
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Xref: news.gmane.org gmane.linux.ports.parisc:22875

Hi,

I have set up Matrox Millennum II on B2000 running Linux 2.6.12-rc6-pa1 
kernel. Am now trying to set up Matrox Mystique to run on it too.

In my first attempt I compiled the "Matrox acceleration" as MODULE with 
"Millennium I/II support" and "Mystique support" compiled into the KERNEL 
(they are not "module" selectable). After rebooting, 'matroxfb' was not 
loaded automatically. Executed a command "modprobe matroxfb" it returned an 
error msg "FATAL: Module matroxfb not found".

Recompiled the second time with "Matrox acceleration", "Millennium I/II 
support" and "Mystique support" all compiled into the KERNEL. Rebooted 
successfully but the Mystique card was not initialized nor the kernel 
crashes as it did running Linux 2.6.8.

The relevant boot msgs are as follows: (3 extra 'printk' s were added to 
drivers/video/matrox/matroxfb_base.h before kernel recompilation so there 
are extra outputs)


STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at fd820000 (128 kB), fb at fb000000 (16 MB)
     id 35acda16-9a02587, conforms to spec rev. 8.0c
     graphics card name: HPA4982A
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
matroxfb: Matrox Mystique (PCI) detected
mga_ioremap: phys=4253024256 size=16384 flags=1 virt=104f49e0 
virt->vaddr=fd800000
mga_ioremap: phys=4244635648 size=8388608 flags=1 virt=104f49cc 
virt->vaddr=fd000000
matroxfb: cannot determine memory size
mga_iounmap: before iounmap() va->vaddr=fd000000
mga_iounmap: after iounmap() va->vaddr=fd000000
mga_iounmap: before iounmap() va->vaddr=fd800000
mga_iounmap: after iounmap() va->vaddr=fd800000
matroxfb: probe of 0000:01:01.0 failed with error -1
stifb: 'HPA4982A' (id: 0x35acda16) not supported.
Generic RTC Driver v1.07


The 'lspci -v' outputs are as follows:

DebianHPPA01:~# lspci -v
0000:00:0c.0 Ethernet controller: Digital Equipment Corporation DECchip 
21142/43 (rev 41)
	Subsystem: Hewlett-Packard Company: Unknown device 104f
	Flags: bus master, medium devsel, latency 255, IRQ 66
	I/O ports at 0f00 [size=128]
	Memory at f4005000 (32-bit, non-prefetchable) [size=1K]
	Expansion ROM at f4040000 [disabled] [size=256K]

0000:00:0d.0 Multimedia audio controller: Analog Devices AD1889 sound chip
	Subsystem: Analog Devices AD1889 sound chip
	Flags: bus master, medium devsel, latency 255, IRQ 67
	Memory at f4009000 (32-bit, prefetchable) [size=512]
	Memory at f4008000 (32-bit, prefetchable) [size=16]
	Memory at f4007000 (32-bit, prefetchable) [size=16]
	Memory at f4006000 (32-bit, prefetchable) [size=16]
	Capabilities: [dc] Power Management version 1

0000:00:0e.0 IDE interface: National Semiconductor Corporation 87415/87560 
IDE (rev 03) (prog-if 8f [Master SecP SecO PriP PriO])
	Flags: bus master, medium devsel, latency 255, IRQ 7
	I/O ports at 0e00 [size=8]
	I/O ports at 0d00 [size=4]
	I/O ports at 0b00 [size=8]
	I/O ports at 0a00 [size=4]
	I/O ports at 0900 [size=16]

0000:00:0e.1 Bridge: National Semiconductor Corporation 87560 Legacy I/O 
(rev 01)
	Flags: bus master, medium devsel, latency 255, IRQ 68

0000:00:0e.2 USB Controller: National Semiconductor Corporation USB 
Controller (rev 02) (prog-if 10 [OHCI])
	Flags: bus master, medium devsel, latency 240, IRQ 1
	Memory at f4004000 (32-bit, non-prefetchable) [size=4K]
	Memory at f4003000 (32-bit, non-prefetchable) [size=4K]

0000:00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53c895a 
(rev 01)
	Subsystem: LSI Logic / Symbios Logic LSI53C895A PCI to Ultra2 SCSI Controller
	Flags: bus master, medium devsel, latency 255, IRQ 69
	I/O ports at 0800 [size=256]
	Memory at f4002000 (32-bit, non-prefetchable) [size=1K]
	Memory at f4000000 (32-bit, non-prefetchable) [size=8K]
	Capabilities: [40] Power Management version 2

0000:01:00.0 3D controller: Hewlett-Packard Company Visualize FXe (rev 03)
	Subsystem: Hewlett-Packard Company: Unknown device 108c
	Flags: bus master, 66MHz, medium devsel, latency 255, IRQ 70
	Memory at fb000000 (64-bit, prefetchable) [size=16M]
	Memory at fa000000 (64-bit, non-prefetchable) [size=16M]
	Expansion ROM at fd820000 [disabled] [size=128K]

0000:01:01.0 VGA compatible controller: Matrox Graphics, Inc. MGA 1064SG 
[Mystique] (rev 02) (prog-if 00 [VGA])
	Flags: bus master, stepping, medium devsel, latency 248, IRQ 71
	Memory at fd800000 (32-bit, non-prefetchable) [size=16K]
	Memory at fd000000 (32-bit, prefetchable) [size=8M]
	Memory at f4800000 (32-bit, non-prefetchable) [size=8M]
	Expansion ROM at fd820000 [disabled] [size=64K]


The 'cat /proc/iomem' outputs are as follows:

DebianHPPA01:~# cat /proc/iomem
00000000-0fffffff : System RAM
   00000000-000009ff : PDC data (Page Zero)
   00100000-0039cfff : Kernel code
   0039d000-0050d89b : Kernel data
f05d0000-f05d0000 : lcd_data
f05d0008-f05d0008 : lcd_cmd
f4000000-f47fffff : PCI00 LMMIO
   f4000000-f4001fff : sym53c8xx
   f4002000-f40023ff : sym53c8xx
   f4004000-f4004fff : ohci_hcd
   f4005000-f40053ff : tulip
   f4009000-f40091ff : ad1889
f4800000-f4ffffff : PCI01 LMMIO
fd000000-fdffffff : PCI01 ELMMIO
fed00000-fed00fff : SBA
fed30000-fed30fff : LBA
fed32000-fed32fff : LBA
fef00000-feffffff : Astro Intr Ack
fff80000-fffaffff : Central Bus
   fffa0000-fffa0fff : CPU
fffb0000-fffdffff : Local Broadcast
fffe0000-ffffffff : Global Broadcast
DebianHPPA01:~#


Any suggestion what should I do next to see if Matrox Mytique cards are 
indeed usable on HPPA boxes.

Tks,
Lee




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Subject: Re: [parisc-linux] Help wanted: Getting Matrox Mystique to run on
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Hi,

What about=20
video=3Dmatroxfb:vesa:0x111,depth:16,mem:4,noaccel,init console=3Dtty0
passed to the kernel or something which best correspond to your vga card ?

Mine is this :
0000:02:03.0 VGA compatible controller: Matrox Graphics, Inc. MGA 1064SG [M=
ystique] (rev 02)
and it works fine.

Guy


On Tue, 05 Jul 2005 22:47:16 +0800
"J. L. Lee" <jllee@singnet.com.sg> wrote:

> Hi,
>=20
> I have set up Matrox Millennum II on B2000 running Linux 2.6.12-rc6-pa1=20
> kernel. Am now trying to set up Matrox Mystique to run on it too.
>=20
> In my first attempt I compiled the "Matrox acceleration" as MODULE with=20
> "Millennium I/II support" and "Mystique support" compiled into the KERNEL=
=20
> (they are not "module" selectable). After rebooting, 'matroxfb' was not=20
> loaded automatically. Executed a command "modprobe matroxfb" it returned =
an=20
> error msg "FATAL: Module matroxfb not found".
>=20
> Recompiled the second time with "Matrox acceleration", "Millennium I/II=20
> support" and "Mystique support" all compiled into the KERNEL. Rebooted=20
> successfully but the Mystique card was not initialized nor the kernel=20
> crashes as it did running Linux 2.6.8.
>=20
> The relevant boot msgs are as follows: (3 extra 'printk' s were added to=
=20
> drivers/video/matrox/matroxfb_base.h before kernel recompilation so there=
=20
> are extra outputs)
>=20
>=20
> STI GSC/PCI core graphics driver Version 0.9a
> STI PCI graphic ROM found at fd820000 (128 kB), fb at fb000000 (16 MB)
>      id 35acda16-9a02587, conforms to spec rev. 8.0c
>      graphics card name: HPA4982A
> sticon: Initializing STI text console.
> Console: switching to colour STI console 160x64
> matroxfb: Matrox Mystique (PCI) detected
> mga_ioremap: phys=3D4253024256 size=3D16384 flags=3D1 virt=3D104f49e0=20
> virt->vaddr=3Dfd800000
> mga_ioremap: phys=3D4244635648 size=3D8388608 flags=3D1 virt=3D104f49cc=20
> virt->vaddr=3Dfd000000
> matroxfb: cannot determine memory size
> mga_iounmap: before iounmap() va->vaddr=3Dfd000000
> mga_iounmap: after iounmap() va->vaddr=3Dfd000000
> mga_iounmap: before iounmap() va->vaddr=3Dfd800000
> mga_iounmap: after iounmap() va->vaddr=3Dfd800000
> matroxfb: probe of 0000:01:01.0 failed with error -1
> stifb: 'HPA4982A' (id: 0x35acda16) not supported.
> Generic RTC Driver v1.07
>=20
>=20
> The 'lspci -v' outputs are as follows:
>=20
> DebianHPPA01:~# lspci -v
> 0000:00:0c.0 Ethernet controller: Digital Equipment Corporation DECchip=20
> 21142/43 (rev 41)
> 	Subsystem: Hewlett-Packard Company: Unknown device 104f
> 	Flags: bus master, medium devsel, latency 255, IRQ 66
> 	I/O ports at 0f00 [size=3D128]
> 	Memory at f4005000 (32-bit, non-prefetchable) [size=3D1K]
> 	Expansion ROM at f4040000 [disabled] [size=3D256K]
>=20
> 0000:00:0d.0 Multimedia audio controller: Analog Devices AD1889 sound chip
> 	Subsystem: Analog Devices AD1889 sound chip
> 	Flags: bus master, medium devsel, latency 255, IRQ 67
> 	Memory at f4009000 (32-bit, prefetchable) [size=3D512]
> 	Memory at f4008000 (32-bit, prefetchable) [size=3D16]
> 	Memory at f4007000 (32-bit, prefetchable) [size=3D16]
> 	Memory at f4006000 (32-bit, prefetchable) [size=3D16]
> 	Capabilities: [dc] Power Management version 1
>=20
> 0000:00:0e.0 IDE interface: National Semiconductor Corporation 87415/8756=
0=20
> IDE (rev 03) (prog-if 8f [Master SecP SecO PriP PriO])
> 	Flags: bus master, medium devsel, latency 255, IRQ 7
> 	I/O ports at 0e00 [size=3D8]
> 	I/O ports at 0d00 [size=3D4]
> 	I/O ports at 0b00 [size=3D8]
> 	I/O ports at 0a00 [size=3D4]
> 	I/O ports at 0900 [size=3D16]
>=20
> 0000:00:0e.1 Bridge: National Semiconductor Corporation 87560 Legacy I/O=
=20
> (rev 01)
> 	Flags: bus master, medium devsel, latency 255, IRQ 68
>=20
> 0000:00:0e.2 USB Controller: National Semiconductor Corporation USB=20
> Controller (rev 02) (prog-if 10 [OHCI])
> 	Flags: bus master, medium devsel, latency 240, IRQ 1
> 	Memory at f4004000 (32-bit, non-prefetchable) [size=3D4K]
> 	Memory at f4003000 (32-bit, non-prefetchable) [size=3D4K]
>=20
> 0000:00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53c895a=20
> (rev 01)
> 	Subsystem: LSI Logic / Symbios Logic LSI53C895A PCI to Ultra2 SCSI Contr=
oller
> 	Flags: bus master, medium devsel, latency 255, IRQ 69
> 	I/O ports at 0800 [size=3D256]
> 	Memory at f4002000 (32-bit, non-prefetchable) [size=3D1K]
> 	Memory at f4000000 (32-bit, non-prefetchable) [size=3D8K]
> 	Capabilities: [40] Power Management version 2
>=20
> 0000:01:00.0 3D controller: Hewlett-Packard Company Visualize FXe (rev 03)
> 	Subsystem: Hewlett-Packard Company: Unknown device 108c
> 	Flags: bus master, 66MHz, medium devsel, latency 255, IRQ 70
> 	Memory at fb000000 (64-bit, prefetchable) [size=3D16M]
> 	Memory at fa000000 (64-bit, non-prefetchable) [size=3D16M]
> 	Expansion ROM at fd820000 [disabled] [size=3D128K]
>=20
> 0000:01:01.0 VGA compatible controller: Matrox Graphics, Inc. MGA 1064SG=
=20
> [Mystique] (rev 02) (prog-if 00 [VGA])
> 	Flags: bus master, stepping, medium devsel, latency 248, IRQ 71
> 	Memory at fd800000 (32-bit, non-prefetchable) [size=3D16K]
> 	Memory at fd000000 (32-bit, prefetchable) [size=3D8M]
> 	Memory at f4800000 (32-bit, non-prefetchable) [size=3D8M]
> 	Expansion ROM at fd820000 [disabled] [size=3D64K]
>=20
>=20
> The 'cat /proc/iomem' outputs are as follows:
>=20
> DebianHPPA01:~# cat /proc/iomem
> 00000000-0fffffff : System RAM
>    00000000-000009ff : PDC data (Page Zero)
>    00100000-0039cfff : Kernel code
>    0039d000-0050d89b : Kernel data
> f05d0000-f05d0000 : lcd_data
> f05d0008-f05d0008 : lcd_cmd
> f4000000-f47fffff : PCI00 LMMIO
>    f4000000-f4001fff : sym53c8xx
>    f4002000-f40023ff : sym53c8xx
>    f4004000-f4004fff : ohci_hcd
>    f4005000-f40053ff : tulip
>    f4009000-f40091ff : ad1889
> f4800000-f4ffffff : PCI01 LMMIO
> fd000000-fdffffff : PCI01 ELMMIO
> fed00000-fed00fff : SBA
> fed30000-fed30fff : LBA
> fed32000-fed32fff : LBA
> fef00000-feffffff : Astro Intr Ack
> fff80000-fffaffff : Central Bus
>    fffa0000-fffa0fff : CPU
> fffb0000-fffdffff : Local Broadcast
> fffe0000-ffffffff : Global Broadcast
> DebianHPPA01:~#
>=20
>=20
> Any suggestion what should I do next to see if Matrox Mytique cards are=20
> indeed usable on HPPA boxes.
>=20
> Tks,
> Lee
>=20
>=20
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


--=20
Guy Martin
Gentoo Linux - HPPA port Lead / IPv6 team

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Hello Dave and * pa,

I trust, it's already a good news:
# cat /proc/cpuinfo ; uname -a ; echo " "; uptime
processor       : 0
cpu family      : PA-RISC 1.1e
cpu             : PA7300LC (PCX-L2)
cpu MHz         : 180.000000
model           : 9000/778/B180L
model name      : Merlin L2+ 180 (9000/778/B180L)
hversion        : 0x00005040
sversion        : 0x00000481
I-cache         : 64 KB
D-cache         : 64 KB (WB, 0-way associative)
ITLB entries    : 96
DTLB entries    : 96 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=3D4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (8 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 119.60
software id     : 2010134099

Linux patst004 2.6.10-pa10-b180 #1 Fri Jul 1 18:49:47 CEST 2005 parisc GN=
U/Linux
 
 16:43:53 up 2 days, 23:16,  4 users,  load average: 7.85, 7.10, 7.15
=3D=3D=3D=3D<>=3D=3D=3D=3D
# cat /proc/cpuinfo ; uname -a ; echo " "; uptime
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8600 (PCX-W+)
cpu MHz         : 400.000000
model           : 9000/785/B2000
model name      : Kazoo W+
hversion        : 0x00005d00
sversion        : 0x00000481
I-cache         : 512 KB
D-cache         : 1024 KB (WB, 0-way associative)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
bogomips        : 794.62
software id     : 2011773200

Linux patst005 2.6.10-pa11-b2k32 #2 Mon Jul 4 19:37:53 CEST 2005 parisc G=
NU/Linux
 
 16:44:35 up 21:03,  6 users,  load average: 8.23, 8.08, 8.10
=3D=3D=3D=3D=3D=3D<>=3D=3D=3D=3D

Previously those 32bit kernel was panicing more/less quickly after the st=
art
of my "stress test" (respectively 2h and 5min)
>
 
> >
> > > > good news with gcc-4.0 (debian pakage) and '-mfixed-range=3Dfr6-f=
r21,fr27-fr31'
> > > >
> > > >     o 2.6.9-rc2-pa1 seems to works as fine as with original optio=
n
> > > >     o 2.6.9-rc2-pa13 the same
> > > >
> > > > (just have to backport some small stuff to  reach to compile kern=
els)
> > > >
> > > > I apply my stress test (tar loops + kernel build loops) during a
full
> > day
> > > > for each one without any pb ;-)
> > > >
> > > > I can now try a step forward: 2.6.10-pa + gcc-4.0, ...
> >
> > I'll have to try a gcc-4.0 built kernel to see if it improves things
> > on the c3k.
> >
> cool ;-)
> 
[...]
(in case of interest I attached my diff file)

> 
> > Just a note, a patch to fix the function pointer canonicalization
> > issue that you and others noticed was installed Friday to the 4.0 bra=
nch,
> > and Saturday to the GCC head.
> >
Next test (tomorow :-)

Thanks,
    Joel



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Subject: Re: [parisc-linux] Help wanted: Getting Matrox Mystique to run on
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Xref: news.gmane.org gmane.linux.ports.parisc:22878

On 05/07/05, Guy Martin <gmsoft@gentoo.org> wrote:
>=20
> What about
> video=3Dmatroxfb:vesa:0x111,depth:16,mem:4,noaccel,init console=3Dtty0
> passed to the kernel or something which best correspond to your vga card =
?
>=20
> Mine is this :
> 0000:02:03.0 VGA compatible controller: Matrox Graphics, Inc. MGA 1064SG =
[Mystique] (rev 02)
> and it works fine.

I have a Millenium (I), in my /etc/palo.conf I have
"video=3Dmatroxfb:nomtrr:init:vesa:0x11B:mem:8"

works fine here, too.

   Max
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Subject: Re: [parisc-linux] [RFC] Alternative implementation of glibc spinlocks
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> If the lock is locked when copied, the copy is locked.
> 
> Wether or not the thread can enter the critical section is dependant
> upon the programmer. The programmer would have to ensure the lock copy
> was atomic by protecting the structure. Then it could point the two
> threads at the new copy, and delete the old copy.

I have to agree with Dave - this seems like a recipe for disaster.

> If we add a level of indirection we insert a lookup requirement. The
> lookup needs to determine if it has to materialize a lock, index load
> the lock from the table, which might be on a faraway page (requiring
> more searching), and our performance is shot.

sounds like we are implementing a VM with page tables. We need a TLB! :-)

> It still doesn't solve our lock rematerializing issue. I think the issue
> will never go away if we have to provide our own lock cookie namespace 
> management.

In any case rematerializing a lock seems iffy.....

> A threaded lisp interpreter writes a running image to disk, only a
> partial write and not the entire address space. It expects to reload
> this from disk and start a thread up at the same place. If it has lock
> aliasing other threads might collide with the loaded lock cookie.

I'm not sure it can do this without doing fixups after reading from a
disk image. For example, in many object systems pointers are written to
disks as UUIDs and when the object is read back from disk the UUID needs
to be reconverted to a real pointer. I would think the situation is the
same with locks; to have predictable behavior you have to write
information about the state of the lock and manage it yourself, instead
of relying on the underlying representation of the lock.

> I think having the lock data with the lock is the only reasonable
> solution.

Perhaps, but "lock data" should not be the internal representation of
the lock. My reading of the POSIX/SuSv3 pthread spec suggests that the
interface is designed explicitly to allow locks to be allocated dynamically.

> Politics is a part of life, and removing it from the equation means you
> are missing important information when making a decision.

Yes, but I don't think we should settle on an implementation that is
otherwise inferior only to get around the politics of an open source
project.

> I don't know what "more natural" means in this case. It's not a
> measurable quantity. A the POSIX pthread interface it's already a
> structure, so what difference does it make, the internals are opaque.

s/more natural/easier to implement/ then.

> A deferred dynamically allocated lock system faces cookie namespace
> problems.

I think there are two separate "namespace" problems:
1) Shared memory locks - this is relatively easy to solve
2) Serializable locks - this is difficult

> Compliance with the standards is important, but second to a robust and
> working implementation under minimum defined criteria.

I dunno about "second to"....

> Let me run a thought an experiment, let me construct the most idiotic
> implementation of "scalar lock" that comes to mind...
> 
> Implementation of Scalar Locks (Take 1)
> =======================================
> 
> a. glibc has a single aligned master lock.
> b. Every thread uses a scalar for a lock.
> c. The pthread functions do the following:
> 	- If the sig_atomic_t lock != 0
>           Use LWS CAS to take the lock [1]
>           = Done.
> 	- Block signals.
> 	- Increment the sig_atomic_t lock.
> 	- Acquire a master lock.
> 	- Twiddle a bit in the scalar lock.
> 	- Unlock a master lock.
> 	- Decrement the sig_atomic_t lock.
> 	- Unblock signals.

Your increment/decrement operations will also need to be done with a LWS.

One undesirable property of this approach seems to be that as the lock
becomes more contended, you spend an increasing amount of time spinning
in the kernel (doing your LWS CAS). As you told me last night, this
means the kernel has interrupts off, so processes are not getting
scheduled, and your lock contention becomes worse.

randolph

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From: Sven Schnelle <svens@gmx.de>
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Subject: [parisc-linux] netpoll support for lasi_82596
Date: Wed, 29 Jun 2005 07:59:26 +0200
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Hi,

i'm working on kgdb for linux-2.6, and added netpoll support to the
lasi_82596 driver. Maybe we can add this patch?

=2D--------------------------------------------------------------
Index: lasi_82596.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /var/cvs/linux-2.6/drivers/net/lasi_82596.c,v
retrieving revision 1.15
diff -u -r1.15 lasi_82596.c
=2D-- lasi_82596.c	29 Nov 2004 19:56:12 -0000	1.15
+++ lasi_82596.c	29 Jun 2005 05:25:40 -0000
@@ -415,6 +415,9 @@
 static int ticks_limit =3D 100;
 static int max_cmd_backlog =3D TX_RING_SIZE-1;
=20
+#if CONFIG_NET_POLL_CONTROLLER
+static void i596_poll_controller(struct net_device *dev);
+#endif
=20
 static inline void CA(struct net_device *dev)
 {
@@ -1209,7 +1212,9 @@
 	dev->set_multicast_list =3D set_multicast_list;
 	dev->tx_timeout =3D i596_tx_timeout;
 	dev->watchdog_timeo =3D TX_TIMEOUT;
=2D
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	dev->poll_controller =3D i596_poll_controller;
+#endif
 	dev->priv =3D (void *)(dev->mem_start);
=20
 	lp =3D dev->priv;
@@ -1242,6 +1247,14 @@
 	return 0;
 }
=20
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void i596_poll_controller(struct net_device *dev)
+{
+    disable_irq(dev->irq);
+    i596_interrupt(dev->irq, dev, NULL);
+    enable_irq(dev->irq);
+}
+#endif
=20
 static irqreturn_t i596_interrupt(int irq, void *dev_id, struct pt_regs *r=
egs)
 {
=2D------------------------------------------------------------------------=
-------

Thanks,

Sven.
=2D-=20
We've seen the restless children at the head of the columns
Come to purify the future with the arrogance of youth

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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] netpoll support for lasi_82596
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Thanks Sven,

I've applied your patch (with small modifications).

Helge

On Wednesday 29 June 2005 07:59, Sven Schnelle wrote:
> Hi,
> 
> i'm working on kgdb for linux-2.6, and added netpoll support to the
> lasi_82596 driver. Maybe we can add this patch?
> 
> ---------------------------------------------------------------
> Index: lasi_82596.c
> ===================================================================
> RCS file: /var/cvs/linux-2.6/drivers/net/lasi_82596.c,v
> retrieving revision 1.15
> diff -u -r1.15 lasi_82596.c
> --- lasi_82596.c	29 Nov 2004 19:56:12 -0000	1.15
> +++ lasi_82596.c	29 Jun 2005 05:25:40 -0000
> @@ -415,6 +415,9 @@
>  static int ticks_limit = 100;
>  static int max_cmd_backlog = TX_RING_SIZE-1;
>  
> +#if CONFIG_NET_POLL_CONTROLLER
> +static void i596_poll_controller(struct net_device *dev);
> +#endif
>  
>  static inline void CA(struct net_device *dev)
>  {
> @@ -1209,7 +1212,9 @@
>  	dev->set_multicast_list = set_multicast_list;
>  	dev->tx_timeout = i596_tx_timeout;
>  	dev->watchdog_timeo = TX_TIMEOUT;
> -
> +#ifdef CONFIG_NET_POLL_CONTROLLER
> +	dev->poll_controller = i596_poll_controller;
> +#endif
>  	dev->priv = (void *)(dev->mem_start);
>  
>  	lp = dev->priv;
> @@ -1242,6 +1247,14 @@
>  	return 0;
>  }
>  
> +#ifdef CONFIG_NET_POLL_CONTROLLER
> +static void i596_poll_controller(struct net_device *dev)
> +{
> +    disable_irq(dev->irq);
> +    i596_interrupt(dev->irq, dev, NULL);
> +    enable_irq(dev->irq);
> +}
> +#endif
>  
>  static irqreturn_t i596_interrupt(int irq, void *dev_id, struct pt_regs *regs)
>  {
> --------------------------------------------------------------------------------
> 
> Thanks,
> 
> Sven.
> -- 
> We've seen the restless children at the head of the columns
> Come to purify the future with the arrogance of youth
> 
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Xref: news.gmane.org gmane.linux.ports.parisc:22882

Hello Dave,

> 
> > >  I managed to hang my c3k with a gcc-4.0.0 built kernel
> > Sorry but which kernel did you use?
> 
> 2.6.10-pa11.
> 
Ok I boot the same and grab recent gcc-4.1 src (about 6h gmt) and build i=
t
with build-tls-tools with following options:
--enable-shared --with-system-zlib --disable-nls --enable-debug --host=3D=
hppa-linux
--tar
get=3Dhppa-linux --disable-libmudflap --enable-languages=3Dc,c++

and it hang also in a g++ test:
[...]
PASS: g++.dg/opt/inline3.C (test for excess errors)
Executing on host: /CAD/parisc-linux/build/gcc/gcc/testsuite/../g++ -B/CA=
D/parisc-linux/build/gcc/gcc/testsuite/../
/CAD/parisc-linux/sources/gcc/gcc/testsuite/g++.dg/opt/inline4.C  -nostdi=
nc++
-I/CAD/parisc-linux/build/gcc/hppa-linux/libstdc++-v3/include/hppa-linux
-I/CAD/parisc-linux/build/gcc/hppa-linux/libstdc++-v3/include -I/CAD/pari=
sc-linux/sources/gcc/libstdc++-v3/libsupc++
-I/CAD/parisc-linux/sources/gcc/libstdc++-v3/include/backward -I/CAD/pari=
sc-linux/sources/gcc/libstdc++-v3/testsuite
-fmessage-length=3D0  -O2 -ftemplate-depth-20000  -S  -o inline4.s    (ti=
meout
=3D 300)

My very bad error was to forget to save the System.map, so it's hard to s=
ay
if the pim analyse is relevant:
-----------------  Processor 0 TOC Information -------------------

GR of CPU[0]
00-03   0000000000000000  0000000000000000  000000001010fc68  00000000fb7=
00100
04-07   00000000ffffffff  00000000fb700040  0000000000000000  00000000122=
ab2c8
08-11   0000000000000000  00000000fb700064  00000000fffffff2  00000000000=
0000b
12-15   0000000000000000  00000000122ab4c4  00000000119900a0  00000000119=
90090
16-19   00000000122ab2c8  0000000000590000  00000000faf0231c  00000000122=
ab0f8
20-23   0000000000000000  00000000fffffff2  00000000fb700064  00000000000=
00000
24-27   00000000119900a0  00000000119900a0  00000000fb700064  00000000103=
c1010
28-31   00000000fb7000f0  0000000001990240  0000000011990480  00000000119=
900a0

GR[02] =3D=3D rp =3D 000000001010fc68

Func: do_signal, Off: 0xfc, Addr: 0x1010fc68

1010fc60:       e8 10 b1 04     b,l 101314e8 <copy_siginfo_to_user>,%r2
1010fc64:       34 08 00 00     ldi 0,r8
1010fc68:       08 1c 02 55     copy ret0,r21
1010fc6c:       03 c0 08 bc     mfctl tr6,ret0

GR[22] =3D=3D t1(32bits) =3D=3D arg4(64bits) =3D 00000000fb700064

GR[21] =3D=3D t2(32bits) =3D=3D arg5(64bits) =3D 00000000fffffff2

GR[20] =3D=3D t3(32bits) =3D=3D arg6(64bits) =3D 0000000000000000

GR[19] =3D=3D t4(32bits) =3D=3D arg7(64bits) =3D 00000000122ab0f8

GR[26] =3D=3D arg0 =3D 00000000fb700064

GR[25] =3D=3D arg1 =3D 00000000119900a0

GR[24] =3D=3D arg2 =3D 00000000119900a0

GR[23] =3D=3D arg3 =3D 0000000000000000

GR[27] =3D=3D dp =3D 00000000103c1010

Func: $global$, Off: 0x0, Addr: 0x103c1010


GR[28] =3D=3D ret0 =3D 00000000fb7000f0

GR[29] =3D=3D ret1 or sl =3D 0000000001990240

GR[30] =3D=3D sp =3D 0000000011990480

GR[31] =3D=3D ble rp =3D 00000000119900a0

Func: _end, Off: 0x14972dc, Addr: 0x119900a0


CR of CPU[0]
00-03   0000000000000000  0000000000000000  0000000000000000  00000000000=
00000
04-07   0000000000000000  0000000000000000  0000000000000000  00000000000=
00000
08-11   000000000000836e  0000000000000000  00000000000000c0  00000000000=
00015
12-15   0000000000000000  0000000000000000  000000000010a000  00000000ff8=
00000
16-19   00000c893eed18c2  0000000000000000  000000001010b64c  000000000f9=
4d280
20-23   00000000000041b7  c0000000fb7000f0  000000ff0004ff00  00000000800=
00000
24-27   0000000000474000  0000000008262000  0000000000044021  00000000405=
dab80
28-31   0000000055555555  0000000055555555  0000000011990000  00000000104=
80000



SR of CPU[0]
00-03   00000000          00000000          000041b7          000041b7
04-07   00000000          00000000          00000000          00000000

SR[00] =3D=3D ts0 =3D 00000000

SR[01] =3D=3D ts1 =3D 00000000

SR[03] =3D=3D cpp =3D 000041b7
...
IIA Offset                   =3D 0x000000001010b650
...

e.g. IAOQ =3D 0x000000001010b650

Parse IAOQ =3D 0x000000001010b650 for CPU[0]

Func: L42, Off: 0x4, Addr: 0x1010b650

1010b650:       0f a2 12 90     stw rp,8(,ret1)
1010b654:       0f a3 12 98     stw r3,c(,ret1)
1010b658:       6b a4 00 20     stw r4,10(,ret1)
1010b65c:       6b a5 00 28     stw r5,14(,ret1)

Thanks,
    Joel


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> Ok I boot the same and grab recent gcc-4.1 src (about 6h gmt) and build it
> with build-tls-tools with following options:
> --enable-shared --with-system-zlib --disable-nls --enable-debug --host=hppa-linux
> --tar
> get=hppa-linux --disable-libmudflap --enable-languages=c,c++

Don't use 4.1 unless you want to help with fixing GCC bugs!

> My very bad error was to forget to save the System.map, so it's hard to say
> if the pim analyse is relevant:

objdump -d will tell you everything you need to know.

According to the grapevine, most of the current stability problems
are probably caused by not properly saving fpregs in all context switches.
The 32-bit port used to be built with -mdisable-fpregs but this was removed
when memcpy was made more efficient.  Note that disabling fpregs when
building the kernel isn't a complete solution as libgcc uses various
floating-point instructions which may or may not get linked into the
kernel (e.g., for integer multiplication).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: kgdb (was: Re: [parisc-linux] netpoll support for lasi_82596)
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--=-=-=
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Hi Helge,

Helge Deller <deller@gmx.de> writes:

> I've applied your patch (with small modifications).

Thanks, maybe one day this will be useful for kgdb debugging over
ethernet - but this needs some work, at the Moment there are no
breakpoints and no singlestepping in my kgdb port for linux-2.6.

Bye,

Sven
=2D-=20
Disc space - the final frontier...

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Hi All,
		I am porting Linux on MPC8266 custom board, after
getting in to Linux the system seems to be struck at a point.
Saved Environment variable:-
      bootargs console=3DttyS0,11520 root=3D1f00 and downloaded the =
Kernel
image at address 0x02000000 in the RAM.
>>From the u-boot prompt the bootm command is invoked as:-=20
	bootm 0x02000000

After that what I get on the terminal is pasted below for your
reference.
I couldn't make out any thing from the output, can any body tell me
where I am doing wrong, and also I don't have any idea about the
bootargs argument "root". Can any body give the precise description of
this argument?


++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++++
=3D> bootm 02000000 ## Booting image at 02000000...
   Image Name:   2.4.24 MPC8260ADS
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    725838 Bytes =3D 708.8 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
Memory BAT mapping: BAT2=3D128Mb, BAT3=3D0Mb, residual: 0Mb

Linux version 2.4.24-pre2 (root@pmcserver) (gcc version 3.3.4) #2 Tue
Jul 5 15:05:10 IST 2005

On node 0 totalpages: 32768

zone(0): 32768 pages.

zone(1): 0 pages.

zone(2): 0 pages.

Kernel command line: console=3DttyS0,115200 root=3D1f00

Warning: real time clock seems stuck!

Calibrating delay loop... 131.89 BogoMIPS

Memory: 127812k available (1232k kernel code, 412k data, 64k init, 0k
highmem)

Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)

Inode cache hash table entries: 8192 (order: 4, 65536 bytes)

Mount cache hash table entries: 512 (order: 0, 4096 bytes)

Buffer cache hash table entries: 8192 (order: 3, 32768 bytes)

Page-cache hash table entries: 32768 (order: 5, 131072 bytes)

POSIX conformance testing by UNIFIX

Linux NET4.0 for Linux 2.4

Based upon Swansea University Computer Society NET3.039

Initializing RT netlink socket

Starting kswapd

JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis
Communications AB.

i2c-core.o: i2c core module version 2.6.1 (20010830)

i2c-dev.o: i2c /dev entries driver module version 2.6.1 (20010830)

CPM UART driver version 0.01

ttyS0 on SMC1 at 0x0000, BRG7

ttyS1 on SMC2 at 0x0040, BRG8

ttyS2 on SCC1 at 0x8000, BRG1

ttyS3 on SCC2 at 0x8100, BRG2

pty: 256 Unix98 ptys configured
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
=09
Waiting eagerly,
Regards,
VB


DISCLAIMER:
This email (including any attachments) is intended for the sole use of =
the intended recipient/s and may contain material that is CONFIDENTIAL =
AND PRIVATE COMPANY INFORMATION. Any review or reliance by others or =
copying or distribution or forwarding of any or all of the contents in =
this message is STRICTLY PROHIBITED. If you are not the intended =
recipient, please contact the sender by email and delete all copies; =
your cooperation in this regard is appreciated.
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> I am porting Linux on MPC8266 custom board, after

I think you are using the wrong mailing list.

> DISCLAIMER: [...] Any review or
> reliance by others or copying or distribution or forwarding of any or
> all of the contents in this message is STRICTLY PROHIBITED. 

but given this disclaimer, nobody can really help you.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

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Joel,

>  #cflags-y      += -mdisable-fpregs
> +cflags-y       += -mfixed-range=fr6-fr21,fr27-fr31

See <http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2005-July/035965.html>.
It's now clear why you had success with the -mfixed-range in gcc 4.0.
The range above disables gcc's use of the floating-point no clobber
registers.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> ah, was not aware parisc kept a glibc cvs tree

we just added this recently to work on TLS.

I realized after I sent that last email that the pie patch probably has
some other dependencies so it may take some time to get it upstream. If
you want to look the changes are all in dl-machine.h

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

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On Thu, Jul 07, 2005 at 10:00:10PM -0400, Mike Frysinger wrote:
> On Thursday 07 July 2005 09:56 pm, Randolph Chung wrote:
> > > does that mean you're looking into fixing PIE on parisc ?  we noticed in
> > > Gentoo that nscd fails to run since glibc forces it to either be built as
> > > a PIE or not at all:
> > > root@mindcircus 0 ~ # nscd
> > > nscd: error while loading shared libraries: unexpected reloc type 0x42
> > >
> > > building anything as PIE fails due to this reloc ... looks like binutils
> > > generates relocs of type R_PARISC_PLABEL14 and R_PARISC_PLABEL21 but
> > > glibc only knows how to handle R_PARISC_PLABEL32 ...
> >
> > palinux glibc cvs has patch to do this. We'll propagate this upstream.
> 
> ah, was not aware parisc kept a glibc cvs tree
> 
> thanks for the great news :)

We haven't pulled from upstream since 2005-06-08. We are trying to get a
working TLS build :)

c.

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Subject: [parisc-linux] Getting PIE to work (was How to reclaim .rela.dyn
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On Thursday 30 June 2005 12:59 pm, Carlos O'Donell wrote:
> An example executable might look like this:
>
> Relocation section '.rela.dyn' at offset 0x2fc contains 11 entries:
>  Offset     Info    Type            Sym.Value  Sym. Name + Addend
> 00000000  00000000 R_PARISC_NONE                                00000000
> 00000000  00000000 R_PARISC_NONE                                00000000
> 00000000  00000000 R_PARISC_NONE                                00000000
> 00000000  00000000 R_PARISC_NONE                                00000000
> 00010420  00000542 R_PARISC_PLABEL21 0001054c   main + 0
> 00010424  00000546 R_PARISC_PLABEL14 0001054c   main + 0
> 00010430  00000442 R_PARISC_PLABEL21 000106e0   __libc_csu_init + 0
> 00010434  00000446 R_PARISC_PLABEL14 000106e0   __libc_csu_init + 0
> 00010438  00000242 R_PARISC_PLABEL21 00010770   __libc_csu_fini + 0
> 0001043c  00000246 R_PARISC_PLABEL14 00010770   __libc_csu_fini + 0
> 000108b4  00000841 R_PARISC_PLABEL32 00000000   _Jv_RegisterClasses + 0
>
> Lets not worry about wether this is optimal (It's not and the fix is to
> change glibc/sysdeps/hppa/start.S to use plabel words so these become 1
> reloc each).

does that mean you're looking into fixing PIE on parisc ?  we noticed in 
Gentoo that nscd fails to run since glibc forces it to either be built as a 
PIE or not at all:
root@mindcircus 0 ~ # nscd
nscd: error while loading shared libraries: unexpected reloc type 0x42

building anything as PIE fails due to this reloc ... looks like binutils 
generates relocs of type R_PARISC_PLABEL14 and R_PARISC_PLABEL21 but glibc 
only knows how to handle R_PARISC_PLABEL32 ...
-mike
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Subject: Re: [parisc-linux] Getting PIE to work (was How to reclaim .rela.dyn
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> does that mean you're looking into fixing PIE on parisc ?  we noticed in 
> Gentoo that nscd fails to run since glibc forces it to either be built as a 
> PIE or not at all:
> root@mindcircus 0 ~ # nscd
> nscd: error while loading shared libraries: unexpected reloc type 0x42
> 
> building anything as PIE fails due to this reloc ... looks like binutils 
> generates relocs of type R_PARISC_PLABEL14 and R_PARISC_PLABEL21 but glibc 
> only knows how to handle R_PARISC_PLABEL32 ...

palinux glibc cvs has patch to do this. We'll propagate this upstream.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

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Subject: Re: [parisc-linux] Getting PIE to work (was How to reclaim .rela.dyn
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Xref: news.gmane.org gmane.linux.ports.parisc:22892

On Thursday 07 July 2005 09:56 pm, Randolph Chung wrote:
> > does that mean you're looking into fixing PIE on parisc ?  we noticed in
> > Gentoo that nscd fails to run since glibc forces it to either be built as
> > a PIE or not at all:
> > root@mindcircus 0 ~ # nscd
> > nscd: error while loading shared libraries: unexpected reloc type 0x42
> >
> > building anything as PIE fails due to this reloc ... looks like binutils
> > generates relocs of type R_PARISC_PLABEL14 and R_PARISC_PLABEL21 but
> > glibc only knows how to handle R_PARISC_PLABEL32 ...
>
> palinux glibc cvs has patch to do this. We'll propagate this upstream.

ah, was not aware parisc kept a glibc cvs tree

thanks for the great news :)
-mike
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From: Kurt Fitzner <kfitzner@excelcia.org>
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Subject: [parisc-linux] Infinite error message from SDC driver on install
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I have just recently attempted to install Debian 3.1 on an old B132L.  I
have managed to get the install CD to boot, but the kernel is issuing an
infinite stream of error messages from the SDC driver:

"HP SDC: Transaction add failed: transaction already queued?"

At first this was preventing the install CD from booting.  I determined
this was due to syslogd filling the ramdisk by logging the above
message.  I was able to get the install CD to boot into the installation
by making the initial ramdisk size very large (64 meg).  However, even
this fills up withing a few minutes.

I'm not very familliar with the SDC - is there a way to prevent the
above from occuring?

Thanks in advance,

	Kurt Fitzner
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Subject: Re: [parisc-linux] Infinite error message from SDC driver on install
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I have found that if I switch to a serial console that after a variable
(from 1 to 50) number of "Transaction add failed" error messages that a
timeout error would occur and no further transaction errors will occur.
This allows me to install Debian.

After installation if I continue to boot with a serial console then I
can boot the Debian installation.  If I try to boot with the standard
graphics console, however, I have a new problem with the SDC driver.
During boot when the SDC driver initializes, it issues the following
message:

"HP SDC MLC: Registering the System Domain Controller's HIL MLC."

After the above message, the kernel hangs and booting is not possible.

I am at my wit's end with this one.  I would really appreciate any
insight that could be offered.

Regards,

    Kurt Fitzner

p.s. In case it is relevant, machine specs are as follows:
HP 9000 B132L workstation
128 MB RAM
Seagate 4.3GB drive on fwscsi.6.0
Panasonic cdrom on sescsi.3.0
No EISA or PCI cards installed.

Kurt Fitzner wrote:
> I have just recently attempted to install Debian 3.1 on an old B132L.  I
> have managed to get the install CD to boot, but the kernel is issuing an
> infinite stream of error messages from the SDC driver:
> 
> "HP SDC: Transaction add failed: transaction already queued?"
> 
> At first this was preventing the install CD from booting.  I determined
> this was due to syslogd filling the ramdisk by logging the above
> message.  I was able to get the install CD to boot into the installation
> by making the initial ramdisk size very large (64 meg).  However, even
> this fills up withing a few minutes.
> 
> I'm not very familliar with the SDC - is there a way to prevent the
> above from occuring?
> 
> Thanks in advance,
> 
> 	Kurt Fitzner
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

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I know it's just a w-a but I also test 2.6.12.2-pa2 on the b180 and it also survive to my stress test for more then a day:
# cat /proc/cpuinfo ; uname -a ; echo " "; uptime
processor       : 0
cpu family      : PA-RISC 1.1e
cpu             : PA7300LC (PCX-L2)
cpu MHz         : 180.000000
model           : 9000/778/B180L
model name      : Merlin L2+ 180 (9000/778/B180L)
hversion        : 0x00005040
sversion        : 0x00000481
I-cache         : 64 KB
D-cache         : 64 KB (WB, 0-way associative)
ITLB entries    : 96
DTLB entries    : 96 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (8 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 119.60
software id     : 2010134099

Linux patst004 2.6.12.2-pa2-b180 #2 Fri Jul 8 12:15:14 CEST 2005 parisc GNU/Linux

  17:00:15 up 1 day,  4:31,  4 users,  load average: 8.86, 8.69, 8.88

Still have to find why it help a bit (for relatively high I/O)?

Why this g++ test (4.1 and not debian 4.0) make hanging the kernel?

Joel

Joel Soete wrote:
>>>Ok I boot the same and grab recent gcc-4.1 src (about 6h gmt) and build
>>
>>it
>>
>>>with build-tls-tools with following options:
>>>--enable-shared --with-system-zlib --disable-nls --enable-debug --host=hppa-linux
>>>--tar
>>>get=hppa-linux --disable-libmudflap --enable-languages=c,c++
>>
>>Don't use 4.1 
> 
> 
> Ok but that was just  to reproduce the pb you encountered :-)
> 
> 
>>unless you want to help with fixing GCC bugs!
>>
> 
> I would so like but I am just able to drive some test as accurately as possible.
> 
> 
[...]
>>The range above disables gcc's use of the floating-point no clobber
>>registers.
> 
btw which fpr do you called 'no clobber'?

I am a bit confused by those other comment in our entry.S:
...
          /* Floating point registers (FIXME: what do we do with these?)

             %fr0  - %fr3    status/exception, not preserved
             %fr4  - %fr7    arguments
             %fr8  - %fr11   not preserved by C code
             %fr12 - %fr21   preserved by C code
             %fr22 - %fr31   not preserved by C code
           */
...

and according to your answer <http://lists.parisc-linux.org/pipermail/parisc-linux/2005-April/026256.html>
fr12 - fr21 (the preserved by C code) would remain unchanged across a call?

Thanks again,
	Joel

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On Sun, Jul 10, 2005 at 02:58:51PM -0700, Ulrich Drepper wrote:
> I checked in a little bit cleaned up version.

Thanks.

Perhaps I can get your academic opinion on the following?

We are prototyping an NPTL port for hppa. We want to touch as little
core code as possible, and we are thinking of deferred lock
initialization, or scalar cookies.

Deferred Locks:
The core idea is to let the lock acquire fail. On the spin we check to
see if the lock was initialized. Having four lock words means that an
"all zero" lock had been memset to zero, in this case we use a
light-weight-syscall to initialize the lock. The lock held case is
similar.

This saves us from making core code changes that setup the lock to a
different value. It still doesn't save us from using a structure for a
lock word.

Scalar Cookies:
A completely alternative implementation involves using an int lock as a
cookie. The cookies are created dynamically and a lock is materialized
for the cookie.

We have a prototype design using cookies, but we have a couple of issues:

Cookies that are serialized and later reloaded.
	= Requires lock rematerialization.
	= Non-trivial.

Cookies placed in shared memory would need to look at the pshared == 1
case, and place locks into a known named posix shared memory segment.

I know you've had experience with these issue, and I was curious about
your opinion.

c.

NOTE: There is a third alternative, and that is to use the
light-weight-syscall "compare and swap" to do the entire lock
implementation. Performance has not been measured for this case. AFAIK
this is the route HPUX took.

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I also have a B132l workstation.  I see about 200 lines of that
message, and eventually it says timeout 52000ms (vague recolection)
and it stops.  I have noticed I'm unable to boot certian kernels.=20
I've had to boot from the cd, hop to a shell, mount the drive, and
install the right kernel.  All I recall is that it is the non smp
32bit 2.6 kernel.  I was only able to use the same kernel that's used
with the installer cd.

I've also reported this on
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D302238.

If it's related, you may want to add to my bug id.  I'll try to get
back to the list w/in the next day to provide more specifics.  Ever
since I was unable to use my pci scsi card combined with a mishap on
my tape drive, I've kinda given up for a small season.

Good luck,


Scott

On 7/9/05, Kurt Fitzner <kfitzner@excelcia.org> wrote:
> I have found that if I switch to a serial console that after a variable
> (from 1 to 50) number of "Transaction add failed" error messages that a
> timeout error would occur and no further transaction errors will occur.
> This allows me to install Debian.
>=20
> After installation if I continue to boot with a serial console then I
> can boot the Debian installation.  If I try to boot with the standard
> graphics console, however, I have a new problem with the SDC driver.
> During boot when the SDC driver initializes, it issues the following
> message:
>=20
> "HP SDC MLC: Registering the System Domain Controller's HIL MLC."
>=20
> After the above message, the kernel hangs and booting is not possible.
>=20
> I am at my wit's end with this one.  I would really appreciate any
> insight that could be offered.
>=20
> Regards,
>=20
>     Kurt Fitzner
>=20
> p.s. In case it is relevant, machine specs are as follows:
> HP 9000 B132L workstation
> 128 MB RAM
> Seagate 4.3GB drive on fwscsi.6.0
> Panasonic cdrom on sescsi.3.0
> No EISA or PCI cards installed.
>=20
> Kurt Fitzner wrote:
> > I have just recently attempted to install Debian 3.1 on an old B132L.  =
I
> > have managed to get the install CD to boot, but the kernel is issuing a=
n
> > infinite stream of error messages from the SDC driver:
> >
> > "HP SDC: Transaction add failed: transaction already queued?"
> >
> > At first this was preventing the install CD from booting.  I determined
> > this was due to syslogd filling the ramdisk by logging the above
> > message.  I was able to get the install CD to boot into the installatio=
n
> > by making the initial ramdisk size very large (64 meg).  However, even
> > this fills up withing a few minutes.
> >
> > I'm not very familliar with the SDC - is there a way to prevent the
> > above from occuring?
> >
> > Thanks in advance,
> >
> >       Kurt Fitzner
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> >
>=20
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>
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On Sat, Jul 09, 2005 at 03:50:04PM -0600, Kurt Fitzner wrote:
> "HP SDC MLC: Registering the System Domain Controller's HIL MLC."
> 

I don't suppose you could investigate further? (TOC the machine, 
lookup where it's hung, see the howto on parisc-linux.org). 

All the d-i images tested fine on my B180, which is a fairly close
match to your B132...

Cheers,
-- 
Kyle McMartin
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Subject: Re: [parisc-linux] Infinite error message from SDC driver on install
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On Tue, Jul 12, 2005 at 08:16:28AM +0200, Joel Soete wrote:
> # B132L, B160L: NCR 53C720 16-bit Fast-wide high voltage differential (HVD)
> SCSI-2
> # B132L+, B180L+: Symbios Logic 53C875 16-bit Ultra-wide SCSI-2 controller

And this is utterly irrelevant because it's not involved in the problem.

-- 
Kyle McMartin
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Subject: Re: [parisc-linux] Infinite error message from SDC driver on install
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> 
> On Tue, Jul 12, 2005 at 08:16:28AM +0200, Joel Soete wrote:
> > # B132L, B160L: NCR 53C720 16-bit Fast-wide high voltage differential=

(HVD)
> > SCSI-2
> > # B132L+, B180L+: Symbios Logic 53C875 16-bit Ultra-wide SCSI-2 contr=
oller
> 
> And this is utterly irrelevant because it's not involved in the problem=
.
> 
Oops my bad I just noticed that there are some diff between those 2 model=

and don't care of messages.

As previously said I never had B132L so I couldn't verify if there was so=
me
HIL port for this design.
(I would like to check on <http://www.parisc-linux.org/hardware/index.htm=
l>
but not available for the moment :_( )

Appologies,
    Joel


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Hello Kyle,
> 
> On Sat, Jul 09, 2005 at 03:50:04PM -0600, Kurt Fitzner wrote:
> > "HP SDC MLC: Registering the System Domain Controller's HIL MLC."
> > 
> 
> I don't suppose you could investigate further? (TOC the machine, 
> lookup where it's hung, see the howto on parisc-linux.org). 
> 
> All the d-i images tested fine on my B180, which is a fairly close
> match to your B132...
> 
mmm not exactely: there was actualy 2 b132 models i.e. B132L and B132L+
and <http://www.openpa.net/systems/b-class.html> rememmber me the major d=
iff
imho:
[...]
Chipset

[...]
# B132L, B160L: NCR 53C720 16-bit Fast-wide high voltage differential (HV=
D)
SCSI-2
# B132L+, B180L+: Symbios Logic 53C875 16-bit Ultra-wide SCSI-2 controlle=
r

Unfortunately, I couldn't test here because no B132L around.

Hth,
    Joel


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Kyle McMartin wrote:
> On Sat, Jul 09, 2005 at 03:50:04PM -0600, Kurt Fitzner wrote:
> 
>>"HP SDC MLC: Registering the System Domain Controller's HIL MLC."
> 
> I don't suppose you could investigate further? (TOC the machine, 
> lookup where it's hung, see the howto on parisc-linux.org). 
> 
> All the d-i images tested fine on my B180, which is a fairly close
> match to your B132...

I've done some more testing.  My results are similar to what Scott
posted.  I've only taken the most cursory look at the relevant code in
the kernel, so my report here is simply observation and my own
interpretation.

When booting from the install CDs and the console is GRAPHICS(0), I find
that I get the transaction add error ad infinitum:

  "HP SDC: Transaction add failed: transaction already queued?"

In one out of every five boots (approximately), after a variable number
of the transaction errors, there will be a timeout error.  Once the
timeout error occurs, no more transaction add errors occur.  The number
of transaction add errors that occur before this happens can be anywhere
from three to several hundreds.

  "HP SDC: Transaction add failed: transaction already queued?"
    above repeated three to several hundred times
  "HP SDC: read timeout (99999ms)"

I found quite by accident that if I am moving the mouse just as the
kernel is booting up, there is a far better chance of getting the
timeout error quickly and thus terminating the transaction error after
just 3 or 4 lines.

If the console is set to serial_1, the transaction error almost always
(9 out of 10 times) terminates after only 3 or 4 lines.  I now believe
that the two observations (mouse movement and serial console) are
related.  I believe the extra interrupt overhead from either the PS/2 or
serial port is allowing the timeout to occur.

Regarding the problem with the kernel hanging, just as Scott indicated,
this only occurs on SMP-enabled kernels on the B132L.  Not being
familliar with Debian prior to this install, it took me a while to
figure out how to get the installer to allow me to select a different
kernel (which is why I have so much info on the frequency of the issues
on a per boot basis).

I have now compiled my own kernel without HIL or SDC support.  This is
quite nice simply because the HIL poling sucks a lot of CPU time
(despite what the FAQ says, I could never get the CPU usage of ksoftirqd
below 8% even when higher priority tasks were running at a -19 nice level).

I'll now spend some time in the kernel code to see how the transaction
add errors are somehow resetting the read timeout.

Hope the observations help.

	Kurt.
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From: Dirk Van Hertem <dirk.vanhertem@ieee.org>
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Subject: [parisc-linux] Debian sarge netinstall hangs after first boot on
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Hello,

I got an hp b132l to play with :) and decided to put debian sarge on it, 
downloaded the latest netinstall cd from the web (debian site) and 
installed using serial console.

The install went ok, after making the initial ramdisk larger (64k 
instead of 16), and gave no errors, but after the copying of the files 
and doing the first reboot. My system hung. I wasn't able to do anything 
(even the power button didn't work).

The last message on my console was the following:

HP SDC: Spunking the self test register to force PUP on next firmware
reset. HP SDC MLC: Registering the System Domain Controller's HIL MLC.

Which is strange because there is no HIL stuff in this machine (this has 
something to do with the keyboard if I'm correct, but the b132l uses 
ps/2 interfaces for mouse and keyboard).

Another strange thing was that the kernel that was chosen during install 
was a smp kernel? (2.6.8...smp something, I didn't pay real attention at 
that time)

When I posted a message concerning this issue on a belgian linux 
newsgroup, there was someone who said he had experienced the same thing, 
and resolved this by booting from a gentoo cd and installing the latest 
kernel. Probably I'll attempt the same thing later on but I wanted to 
ask if there are other options or if I made some mistake?

Greetings,

Dirk

-- 
Dirk Van Hertem                       Dirk.VanHertem@esat.kuleuven.be
Electrical Engineering Department  http://www.esat.kuleuven.be/electa
Katholieke Universiteit Leuven, ESAT-ELECTA      tel: +32-16-32.18.95
10, Kasteelpark Arenberg, B-3001 Heverlee        fax: +32-16-32.19.85 

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Hello Dirk,

> 
> Hello,
> 
> I got an hp b132l to play with :) and decided to put debian sarge on it=
,
> 
> downloaded the latest netinstall cd from the web (debian site) and 
> installed using serial console.
> 
Just being curious: didn't you try from sti (i.e. builtin graphical inter=
face)?

> The install went ok, after making the initial ramdisk larger (64k 
> instead of 16), and gave no errors, but after the copying of the files

> and doing the first reboot. My system hung. I wasn't able to do anythin=
g
> 
Good to know

> (even the power button didn't work).
> 
> The last message on my console was the following:
> 
> HP SDC: Spunking the self test register to force PUP on next firmware
> reset. HP SDC MLC: Registering the System Domain Controller's HIL MLC.
> 
Yes there are a lot of report on p-l and debian-hppa ml on this subject :=
_(

> Which is strange because there is no HIL stuff in this machine (this ha=
s
> something to do with the keyboard if I'm correct, but the b132l uses 
> ps/2 interfaces for mouse and keyboard).
> 
Yes but afaik the interface exist on this model (see a hpux ioscan) as we=
ll
as on B160L (but not on B180 or B132L+) and it tried to initialize.

> Another strange thing was that the kernel that was chosen during instal=
l
> was a smp kernel? (2.6.8...smp something, I didn't pay real attention a=
t
> that time)
> 
Yes very strange (but I have no clue about debian installer details :-( )=


> When I posted a message concerning this issue on a belgian linux 
> newsgroup, there was someone who said he had experienced the same thing=
,
> and resolved this by booting from a gentoo cd and installing the latest=


> kernel. Probably I'll attempt the same thing later on but I wanted to 
> ask if there are other options or if I made some mistake?
> 
Apparently no mistake :-)

What you coud do also, as the install-cd works fine, is to reboot from th=
is
cd and look for a sub-menu to enter into a shell script.

Here you can setup your nic (to access the web if possible) and mainly mo=
unt
your boot disk.
(e.g. # mkdir /mnt/MyBoot ; mount /dev/sda5 /mnt/MyBoot ; mount /dev/sda6=

/mnt/MyBoot/var;...
according to your slicing: sda5 would be replace by your own root partiti=
on
sda6 your var if there is one, ...)

Then you can chroot to this mount point (e.g. chroot /mnt/MyBoot )
You would then be able to grab one of prebuild kernel e.g. from:
<http://cvs.parisc-linux.org/download/linux-2.6/> (I would recommended th=
e
one for b180 for your b132l)

following instructions at the top of this page :-)

To be sure umount your boot disk and try to reboot.

That should work.

Hth,
    Joel

PS: Don't hesitate to ask if you need more details


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Subject: [parisc-linux] A bit curious about...
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Hello...	Yes, I'm a bit curious about the link:

	http://cvs.parisc-linux.org/download/linux-2.6

-) The "32" column kernels... Have *FULL* HIL support built?

-) For an HP 9000 series 735... Can I gain something adicional (H/W support, 
performance, etc.) using a 2.6 kernel instead of good'ol 2.4?

					T.I.A...		JMMF.

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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: [parisc-linux] PA 2.0 float conversion to unsigned long long
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The enclosed testcase derived from GCC PR 22474 aborts under linux but
not under hpux.  The problem is the following insn:

0x00002930 <f2ull+24>:  fcnv,t,sgl,udw fr22,fr22

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

/* gcc -w -o pr22474 -O0 -march=2.0 -fno-show-column pr22474.c */
unsigned long long
f2ull(float f)
{
  return (unsigned long long int) f;
}

int
main ()
{
  if (f2ull((float) ((~0ULL) >> 1)) != (~0ULL) >> 1 &&  /* 0x7fffffff */
      f2ull((float) ((~0ULL) >> 1)) != ((~0ULL) >> 1) + 1)
    abort();
  return 0;
}
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On Wed, Jul 13, 2005 at 10:53:50PM -0400, John David Anglin wrote:
> The enclosed testcase derived from GCC PR 22474 aborts under linux but
> not under hpux.  The problem is the following insn:
> 
> 0x00002930 <f2ull+24>:  fcnv,t,sgl,udw fr22,fr22
> 

Might this be an insn that is not implemented in hardware, and
correctly being trapped on hpux, but not on Linux? I took a look
in arch/parisc/math-emu, but it's quite a bit more than I can handle. :)

Cheers,
-- 
Kyle McMartin
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Xref: news.gmane.org gmane.linux.ports.parisc:22908

> On Wed, Jul 13, 2005 at 10:53:50PM -0400, John David Anglin wrote:
> > The enclosed testcase derived from GCC PR 22474 aborts under linux but
> > not under hpux.  The problem is the following insn:
> >=20
> > 0x00002930 <f2ull+24>:  fcnv,t,sgl,udw fr22,fr22
> >=20
> 
> Might this be an insn that is not implemented in hardware, and
> correctly being trapped on hpux, but not on Linux? I took a look
> in arch/parisc/math-emu, but it's quite a bit more than I can handle. :)

That's what I was thinking when I wrote the message.  Under linux,
both the left and right halves of fr22 end up with 0x80000000.  Under
hpux, the left result is 0x80000000 and the right 0.  The only other
explanation is that the c3k fpu has a bug that's not present in an A500
(doubtful).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] PA 2.0 float conversion to unsigned long long
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> -- Original Message --
> To: kyle@mcmartin.ca (Kyle McMartin)
> Date: Wed, 13 Jul 2005 23:56:28 -0400 (EDT)
> From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] PA 2.0 float conversion to unsigned long lo=
ng
> 
> 
> > On Wed, Jul 13, 2005 at 10:53:50PM -0400, John David Anglin wrote:
> > > The enclosed testcase derived from GCC PR 22474 aborts under linux
but
> > > not under hpux.  The problem is the following insn:
> > >=3D20
> > > 0x00002930 <f2ull+24>:  fcnv,t,sgl,udw fr22,fr22
> > >=3D20
> > 
> > Might this be an insn that is not implemented in hardware, and
> > correctly being trapped on hpux, but not on Linux? I took a look
> > in arch/parisc/math-emu, but it's quite a bit more than I can handle.=

:)
> 
> That's what I was thinking when I wrote the message.  Under linux,
> both the left and right halves of fr22 end up with 0x80000000.  Under
> hpux, the left result is 0x80000000 and the right 0.  The only other
> explanation is that the c3k fpu has a bug that's not present in an A500=

> (doubtful).
> 
No: here same 
 # ./pr22474 
Aborted

on n4k, b2k and d380 runing respectively: 2.6.12-pa2-n4ksmp, 2.6.11.12-pa=
4-b2k32,
2.6.12-pa1-d32up.

with cpu:
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8600 (PCX-W+)
cpu MHz         : 550.000000
model           : 9000/800/N4000-55
model name      : Unknown machine
hversion        : 0x00005d30
sversion        : 0x00000491
I-cache         : 512 KB
D-cache         : 1024 KB (WB, 0-way associative)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
bogomips        : 1093.63
software id     : 664309341
[x2]

# cat /proc/cpuinfo 
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8600 (PCX-W+)
cpu MHz         : 400.000000
model           : 9000/785/B2000
model name      : Kazoo W+
hversion        : 0x00005d00
sversion        : 0x00000481
I-cache         : 512 KB
D-cache         : 1024 KB (WB, 0-way associative)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB
bogomips        : 796.67
software id     : 2011773200

# cat /proc/cpuinfo 
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8000 (PCX-U)
cpu MHz         : 180.000000
model           : 9000/820/D380
model name      : UL proc 2-way U180 1M/1M
hversion        : 0x00005aa0
sversion        : 0x00000491
I-cache         : 1024 KB
D-cache         : 1024 KB (WB, 0-way associative)
ITLB entries    : 96
DTLB entries    : 96 - shared with ITLB
BTLB            : not supported
bogomips        : 359.62
software id     : 2005347373

either compiled with (debian testing) gcc-3.3.5 or new (debian unstable d=
efault)
gcc-4.0.1

(unfortunately I don't have any place where I could install gcc on pa-2.0=

arch :-( )

Hth,
    Joel


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Joel Soete wrote:

>>I got an hp b132l to play with :) and decided to put debian sarge on it,
>>downloaded the latest netinstall cd from the web (debian site) and 
>>installed using serial console.
> 
> Just being curious: didn't you try from sti (i.e. builtin graphical interface)?

Booting with the graphic console on a B132L is difficult.  I just wrote
about this in my post to the mailing list titled "Infinite error message
 from SDC driver on install".

If you want to use the graphic console on a B132L, I found that if you
manipulate the mouse continually (a nice even circular motion), that you
are far less likely to get that infinite loop of SDC error messages.  I
believe that this is dur to the same reason why installing with a serial
console works (extra overhead of the mouse/serial interrupts allows the
SDC driver a chance to time out).  Once you get the error message:
  "HP SDC: read timeout (999999ms)"
you are safe to stop moving the mouse.

>>The install went ok, after making the initial ramdisk larger (64k 
>>instead of 16), and gave no errors, but after the copying of the files
>>and doing the first reboot. My system hung. I wasn't able to do anything

The SMP kernels hang on a B132L.  You need to install a non-smp one.  In
order to do this, you have to tell the installer not to make so many
default decisions on its own.

To do this, hit ESC when you are first asked about what language you
want.  You'll then be in the main installer menu.  Cursor down to the
entry "Change debconf priority".  Set it to "low".  After that, you will
have to select each stage in the installation process manually, and you
will be asked more questions at each stage, but you should be able to
install a non-smp kernel now (it will ask you which kernel to install).

However, after the install, you still aren't out of the water yet.  The
problem is the infinite SDC error will still be a problem because all
the 32 bit kernels have the SDC and HIL drivers built in.  When you
reboot your machine, you will need to do the mouse trick to get past the
SDC errors.  Once your machine is booted up and you go through the
secondary debian install process, you will need to download and compile
your own kernel.  There is a good tutorial on this online for newbies
(like I was) to Debian at:
http://newbiedoc.sourceforge.net/system/kernel-pkg.html

Debian has some silliness with using an initrd ramdisk at boot time and
making EVERYTHING into a module.  I didn't do this with my kernel.  I
put the scsi drivers right into the kernel.  You end up getting some
error messages at boot time from discover and hotplug (why Debian
installs and uses BOTH, I have no idea) because they both try and load
the scsi modules and there aren't any.  I ended up removing discover and
configuring hotplug to ignore the SCSI subsystem (let me know if you
want more info on that).

I'd be very happy to offer you the debian package I compiled for my
B132L.  It's made of the most recent 2.6.12-pa2 kernel source.

Hope this helps,

	Kurt (another B132L owner)


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Subject: Re: [parisc-linux] Debian sarge netinstall hangs after first boot
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Joel Soete wrote:

>Hello Dirk,
>  
>
>>Hello,
>>
>>I got an hp b132l to play with :) and decided to put debian sarge on it,
>>
>>downloaded the latest netinstall cd from the web (debian site) and 
>>installed using serial console.
>>
>>    
>>
>Just being curious: didn't you try from sti (i.e. builtin graphical interface)?
>
>  
>
I don't have a screen, so I made a terminal out of my old P1 Linux machine

>>The install went ok, after making the initial ramdisk larger (64k 
>>instead of 16), and gave no errors, but after the copying of the files
>>    
>>
>
>  
>
>>and doing the first reboot. My system hung. I wasn't able to do anything
>>
>>    
>>
>Good to know
>
>  
>
>>(even the power button didn't work).
>>
>>The last message on my console was the following:
>>
>>HP SDC: Spunking the self test register to force PUP on next firmware
>>reset. HP SDC MLC: Registering the System Domain Controller's HIL MLC.
>>
>>    
>>
>Yes there are a lot of report on p-l and debian-hppa ml on this subject :_(
>
>  
>
sorry, i didn't see these messages, I thought that I did a thorough
google search though :(

>>Which is strange because there is no HIL stuff in this machine (this has
>>something to do with the keyboard if I'm correct, but the b132l uses 
>>ps/2 interfaces for mouse and keyboard).
>>
>>    
>>
>Yes but afaik the interface exist on this model (see a hpux ioscan) as well
>as on B160L (but not on B180 or B132L+) and it tried to initialize.
>  
>
>>Another strange thing was that the kernel that was chosen during install
>>was a smp kernel? (2.6.8...smp something, I didn't pay real attention at
>>that time)
>>
>>    
>>
>Yes very strange (but I have no clue about debian installer details :-( )
>  
>
I also have no clue about the debian installer :), but I more or less
tried the method you suggested below (opening a shell) and instead of
downloading a new kernel from the internet, I used an alternative one on
the cdrom disk (the one without smp, since the installed one was
definately the smp version from the cd). Afterwards the pc booted nice.
So the problem is definitely that the netinstall cdrom chooses a wrong
kernel for this machine.

The method I used for people having the same problem (it is a rough list
of things I did, but i guess it will be more than sufficient for most
people owning a hppa ;)).

I booted from cdrom with option ramdisk (don't know if this makes a
difference), with a ramsize of 65536
in the installation i chose the shell (you need to select <<Go Back>>
once or twice in the netinstall boot loader in order to go to the main menu)
look where the kernels are on the cdrom (which is mounted in /cdrom)
This was somewhere like /cdrom/pool/main/k/kernel..../
mkdir /mnt
mount your scsi on mnt: since there where no /dev/sdaX available, this
was for me doing something like:
mount /dev/scsi/..something../..something../target2
cp kernel_from_cdrom_location /mnt
cd /mnt
chroot .
dpkg -i kernel_filename.deb
palo
reboot

>What you coud do also, as the install-cd works fine, is to reboot from this
>cd and look for a sub-menu to enter into a shell script.
>
>Here you can setup your nic (to access the web if possible) and mainly mount
>your boot disk.
>(e.g. # mkdir /mnt/MyBoot ; mount /dev/sda5 /mnt/MyBoot ; mount /dev/sda6
>/mnt/MyBoot/var;...
>according to your slicing: sda5 would be replace by your own root partition
>sda6 your var if there is one, ...)
>
>Then you can chroot to this mount point (e.g. chroot /mnt/MyBoot )
>You would then be able to grab one of prebuild kernel e.g. from:
><http://cvs.parisc-linux.org/download/linux-2.6/> (I would recommended the
>one for b180 for your b132l)
>
>following instructions at the top of this page :-)
>
>To be sure umount your boot disk and try to reboot.
>
>That should work.
>  
>
And it did, thanks for the help

Dirk

-- 
Dirk Van Hertem                       Dirk.VanHertem@esat.kuleuven.be
Electrical Engineering Department  http://www.esat.kuleuven.be/electa
Katholieke Universiteit Leuven, ESAT-ELECTA      tel: +32-16-32.18.95
10, Kasteelpark Arenberg, B-3001 Heverlee        fax: +32-16-32.19.85 

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Subject: Re: [parisc-linux] Debian sarge netinstall hangs after first boot
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Xref: news.gmane.org gmane.linux.ports.parisc:22912

Hello Kurt,

I didn't read this message before sending mine :), and sorry for sending
 this message first to you directly (this is a strange setting of the
mailing list?)

Kurt Fitzner wrote:

>Joel Soete wrote:
>
>>>I got an hp b132l to play with :) and decided to put debian sarge on it,
>>>downloaded the latest netinstall cd from the web (debian site) and 
>>>installed using serial console.
>>>      
>>Just being curious: didn't you try from sti (i.e. builtin graphical interface)?
>
>Booting with the graphic console on a B132L is difficult.  I just wrote
>about this in my post to the mailing list titled "Infinite error message
> from SDC driver on install".
>
>If you want to use the graphic console on a B132L, I found that if you
>manipulate the mouse continually (a nice even circular motion), that you
>are far less likely to get that infinite loop of SDC error messages.  I
>believe that this is dur to the same reason why installing with a serial
>console works (extra overhead of the mouse/serial interrupts allows the
>SDC driver a chance to time out).  Once you get the error message:
>  "HP SDC: read timeout (999999ms)"
>you are safe to stop moving the mouse.
>
so I'm glad I don't have such a screen :-)

>>>The install went ok, after making the initial ramdisk larger (64k 
>>>instead of 16), and gave no errors, but after the copying of the files
>>>and doing the first reboot. My system hung. I wasn't able to do anything
>
>The SMP kernels hang on a B132L.  You need to install a non-smp one.  In
>order to do this, you have to tell the installer not to make so many
>default decisions on its own.
>
>To do this, hit ESC when you are first asked about what language you
>want.  You'll then be in the main installer menu.  Cursor down to the
>entry "Change debconf priority".  Set it to "low".  After that, you will
>have to select each stage in the installation process manually, and you
>will be asked more questions at each stage, but you should be able to
>install a non-smp kernel now (it will ask you which kernel to install).
>
ok, this method seems a bit more "according to the book" than the one i used

>However, after the install, you still aren't out of the water yet.  The
>problem is the infinite SDC error will still be a problem because all
>the 32 bit kernels have the SDC and HIL drivers built in.  When you
>reboot your machine, you will need to do the mouse trick to get past the
>SDC errors.  
>
Indeed, i get some errors, but without doing anything (there was no
mouse available) it booted, and i was already quite pleased and just
ignored them for the time being :).

>Once your machine is booted up and you go through the
>secondary debian install process, you will need to download and compile
>your own kernel.  There is a good tutorial on this online for newbies
>(like I was) to Debian at:
>http://newbiedoc.sourceforge.net/system/kernel-pkg.html
>  
>Debian has some silliness with using an initrd ramdisk at boot time and
>making EVERYTHING into a module.  I didn't do this with my kernel.  I
>put the scsi drivers right into the kernel.  You end up getting some
>error messages at boot time from discover and hotplug (why Debian
>installs and uses BOTH, I have no idea) because they both try and load
>the scsi modules and there aren't any.  I ended up removing discover and
>configuring hotplug to ignore the SCSI subsystem (let me know if you
>want more info on that).
>
>I'd be very happy to offer you the debian package I compiled for my
>B132L.  It's made of the most recent 2.6.12-pa2 kernel source.
>
>Hope this helps,
>
>	Kurt (another B132L owner)
>
I would be happy to use that package (or if the file is to big and you'd
send me the .config file so that i would be able to compile it myself)

Thanks,

Dirk


-- 
Dirk Van Hertem                       Dirk.VanHertem@esat.kuleuven.be
Electrical Engineering Department  http://www.esat.kuleuven.be/electa
Katholieke Universiteit Leuven, ESAT-ELECTA      tel: +32-16-32.18.95
10, Kasteelpark Arenberg, B-3001 Heverlee        fax: +32-16-32.19.85


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Please stand up and pat yourself on the back:

make[2]: *** [/glibc/math/test-fenv.out] Error 1
	= Regression (1)
make[2]: *** [/glibc/math/test-float.out] Error 1
make[2]: *** [/glibc/math/test-double.out] Error 1
make[2]: *** [/glibc/math/test-ifloat.out] Error 1
make[2]: *** [/glibc/math/test-idouble.out] Error 1
make[1]: *** [math/tests] Error 2
make[2]: *** [/glibc/stdlib/tst-strtod.out] Error 1
make[2]: *** [/glibc/stdlib/bug-strtod.out] Error 1
make[1]: *** [stdlib/tests] Error 2
make[2]: [/glibc/posix/annexc.out] Error 1 (ignored)
make[2]: *** [/glibc/elf/tst-array1.out] Error 1
make[2]: *** [/glibc/elf/tst-array2.out] Error 1
make[2]: *** [/glibc/elf/tst-array3.out] Error 1
make[2]: *** [/glibc/elf/tst-array4.out] Error 1
make[2]: *** [/glibc/elf/tst-array1-static.out] Error 1
	= Regressions (5)
make[2]: *** [/glibc/elf/tst-tls13.out] Error 1
	= TIMEOUTFACTOR=10 required.
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

That's 6 regressions for the C Library, which I'll target over the next
couple of weeks.

The last big error was that glibc was considering the build a
cross-compile and the environment just puked.

Cheers,
Carlos.
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Subject: [parisc-linux] Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
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On Fri, Jul 15, 2005 at 10:26:10AM -0400, Carlos O'Donell wrote:
> make[2]: *** [/glibc/math/test-fenv.out] Error 1
> 	= Regression (1)
> make[2]: *** [/glibc/math/test-float.out] Error 1
> make[2]: *** [/glibc/math/test-double.out] Error 1
> make[2]: *** [/glibc/math/test-ifloat.out] Error 1
> make[2]: *** [/glibc/math/test-idouble.out] Error 1
> make[1]: *** [math/tests] Error 2
> make[2]: *** [/glibc/stdlib/tst-strtod.out] Error 1
> make[2]: *** [/glibc/stdlib/bug-strtod.out] Error 1
> make[1]: *** [stdlib/tests] Error 2
> make[2]: [/glibc/posix/annexc.out] Error 1 (ignored)
> make[2]: *** [/glibc/elf/tst-array1.out] Error 1
> make[2]: *** [/glibc/elf/tst-array2.out] Error 1
> make[2]: *** [/glibc/elf/tst-array3.out] Error 1
> make[2]: *** [/glibc/elf/tst-array4.out] Error 1
> make[2]: *** [/glibc/elf/tst-array1-static.out] Error 1
> 	= Regressions (5)
> make[2]: *** [/glibc/elf/tst-tls13.out] Error 1
> 	= TIMEOUTFACTOR=10 required.
> make[1]: *** [elf/tests] Error 2
> make: *** [check] Error 2

Fixed binutils...

Make that 1 regression:

make[2]: *** [/glibc/math/test-fenv.out] Error 1
make[2]: *** [/glibc/math/test-float.out] Error 1
make[2]: *** [/glibc/math/test-double.out] Error 1
make[2]: *** [/glibc/math/test-ifloat.out] Error 1
make[2]: *** [/glibc/math/test-idouble.out] Error 1
make[1]: *** [math/tests] Error 2
make[2]: *** [/glibc/stdlib/tst-strtod.out] Error 1
make[2]: *** [/glibc/stdlib/bug-strtod.out] Error 1
make[1]: *** [stdlib/tests] Error 2
make[2]: [/glibc/posix/annexc.out] Error 1 (ignored)
make: *** [check] Error 2

However, the following is troubling and where trouble goes, so does the
blame on the compiler.

test-float.out (Non-inline float):
 Test suite completed:
   2599 test cases plus 2384 tests for exception flags executed.
-  39 errors occurred.
+  4363 errors occurred.

test-double.out (Non-inline double):
 Test suite completed:
   2624 test cases plus 2399 tests for exception flags executed.
-  38 errors occurred.
+  4388 errors occurred.

Although the numbers don't add up with the errors a cursory check shows
*none* of the non-inline math tests passed.

The inline math does *much* better, observe:

test-ifloat.out (Inline float):
 Test suite completed:
   2537 test cases plus 2322 tests for exception flags executed.
-  1 errors occurred.
+  11 errors occurred.

test-idbouble.out (Inline double):
 Test suite completed:
   2562 test cases plus 2337 tests for exception flags executed.
-  1 errors occurred.
+  10 errors occurred.


c.

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Subject: [parisc-linux] Re: Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
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> However, the following is troubling and where trouble goes, so does the
> blame on the compiler.
> 
> test-float.out (Non-inline float):
>  Test suite completed:
>    2599 test cases plus 2384 tests for exception flags executed.
> -  39 errors occurred.
> +  4363 errors occurred.
> 
> test-double.out (Non-inline double):
>  Test suite completed:
>    2624 test cases plus 2399 tests for exception flags executed.
> -  38 errors occurred.
> +  4388 errors occurred.
> 
> Although the numbers don't add up with the errors a cursory check shows
> *none* of the non-inline math tests passed.

I don't want to throw stones but I posted a message to parisc two
days ago indicating that we have at least one kernel bug in its math
emulation ;)

Ok, PA 2.0 support could be suspect.  I doubt very much there are
major FP issues with PA 1.1.  In PA 1.1, essentially all the operations
are supported in hardware (I hate assist).  There's an issue with
complex support using PA 1.0 but if the compiler didn't die that's
not likely the problem.  That's fixed in main.  Finally, you've got
the glibc issue in handling 64-bit long doubles.  I would suspect a
glibc issue first.  GCC doesn't have much to do with exception support
or control of rounding modes, although you would think the compiler
would need to know about rounding mode.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
Date: Fri, 15 Jul 2005 20:57:15 -0400
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On Fri, Jul 15, 2005 at 08:08:43PM -0400, John David Anglin wrote:
> > However, the following is troubling and where trouble goes, so does the
> > blame on the compiler.
> > 
> > test-float.out (Non-inline float):
> >  Test suite completed:
> >    2599 test cases plus 2384 tests for exception flags executed.
> > -  39 errors occurred.
> > +  4363 errors occurred.
> > 
> > test-double.out (Non-inline double):
> >  Test suite completed:
> >    2624 test cases plus 2399 tests for exception flags executed.
> > -  38 errors occurred.
> > +  4388 errors occurred.
> > 
> > Although the numbers don't add up with the errors a cursory check shows
> > *none* of the non-inline math tests passed.
> 
> I don't want to throw stones but I posted a message to parisc two
> days ago indicating that we have at least one kernel bug in its math
> emulation ;)

I knew I'd draw you ire if I blamed the compiler! :)
 
> Ok, PA 2.0 support could be suspect.  I doubt very much there are
> major FP issues with PA 1.1.  In PA 1.1, essentially all the operations
> are supported in hardware (I hate assist).  There's an issue with
> complex support using PA 1.0 but if the compiler didn't die that's
> not likely the problem.  That's fixed in main.  Finally, you've got
> the glibc issue in handling 64-bit long doubles.  I would suspect a
> glibc issue first.  GCC doesn't have much to do with exception support
> or control of rounding modes, although you would think the compiler
> would need to know about rounding mode.

I'm only testing float and double support, I have temporarily disabled
long double support for hppa during testing.

I don't quite understand how something like "fpclassify" can *ever* fail
under any implementation.

Could you review these files:
http://cvs.parisc-linux.org/glibc/sysdeps/hppa/fpu/

With an eye to correct asm statement? If these don't work then it all
goes down the tubes. I'm sure gcc is probably doing the right thing and
that asm is doing the wrong thing.

c.

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From: Carlos O'Donell <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
Date: Fri, 15 Jul 2005 21:14:33 -0400
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On Fri, Jul 15, 2005 at 08:57:15PM -0400, Carlos O'Donell wrote:
> I don't quite understand how something like "fpclassify" can *ever* fail
> under any implementation.
> 
> Could you review these files:
> http://cvs.parisc-linux.org/glibc/sysdeps/hppa/fpu/
> 
> With an eye to correct asm statement? If these don't work then it all
> goes down the tubes. I'm sure gcc is probably doing the right thing and
> that asm is doing the wrong thing.

I think gcc is to blame, or the constraints in the assembly?

--- GCC 4.0 ---

0x40349890 <feclearexcept+0>:   ldo 40(sp),sp
0x40349894 <feclearexcept+4>:   ldo -38(sp),ret0
0x40349898 <feclearexcept+8>:   stw r19,-20(,sp)
0x4034989c <feclearexcept+12>:  fstd fr0,0(,ret0)
0x403498a0 <feclearexcept+16>:  fldd 0(,ret0),fr0
0x403498a4 <feclearexcept+20>:  ldi 0,ret0
0x403498a8 <feclearexcept+24>:  bv r0(rp)
0x403498ac <feclearexcept+28>:  ldo -40(sp),sp

Notice that it thinks the argument is on the stack? Are the assembly
constraints confusing gcc?

The above is competely bogus.

--- GCC 3.3.5 ---

00000000 <feclearexcept>:
   0:   37 de 00 80     ldo 40(sp),sp
   4:   d7 5a 0b 7b     depw,z r26,4,5,r26
   8:   6b d3 3f c1     stw r19,-20(,sp)
   c:   37 d4 3f 91     ldo -38(sp),r20
  10:   2e 80 12 00     fstd fr0,0(,r20)
  14:   4b d5 3f 91     ldw -38(,sp),r21
  18:   0b 55 00 1a     andcm r21,r26,r26
  1c:   6b da 3f 91     stw r26,-38(,sp)
  20:   2e 80 10 00     fldd 0(,r20),fr0
  24:   34 1c 00 00     ldi 0,ret0
  28:   e8 40 c0 00     bv r0(rp)
  2c:   37 de 3f 81     ldo -40(sp),sp

This one properly loads the value from r26.
This one works.

c.

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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
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> I think gcc is to blame, or the constraints in the assembly?
> 
> --- GCC 4.0 ---
> 
> 0x40349890 <feclearexcept+0>:   ldo 40(sp),sp
> 0x40349894 <feclearexcept+4>:   ldo -38(sp),ret0
> 0x40349898 <feclearexcept+8>:   stw r19,-20(,sp)
> 0x4034989c <feclearexcept+12>:  fstd fr0,0(,ret0)
> 0x403498a0 <feclearexcept+16>:  fldd 0(,ret0),fr0
> 0x403498a4 <feclearexcept+20>:  ldi 0,ret0
> 0x403498a8 <feclearexcept+24>:  bv r0(rp)
> 0x403498ac <feclearexcept+28>:  ldo -40(sp),sp

PR time.  Please add danglin@gcc.gnu.org to the CC list.

> Notice that it thinks the argument is on the stack? Are the assembly
> constraints confusing gcc?

Probably, but its not clear at the moment.  I think the asm's need
the volatile keyword as they have side effects that aren't known to
gcc (i.e., scheduling might move a floating point operation past
the asm's should the functions be inlined.

Taking a quick look, I see the and has been removed from the initial
rtl generation.  So, this is a tree optimization bug.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
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> > I think gcc is to blame, or the constraints in the assembly?
> > 
> > --- GCC 4.0 ---
> > 
> > 0x40349890 <feclearexcept+0>:   ldo 40(sp),sp
> > 0x40349894 <feclearexcept+4>:   ldo -38(sp),ret0
> > 0x40349898 <feclearexcept+8>:   stw r19,-20(,sp)
> > 0x4034989c <feclearexcept+12>:  fstd fr0,0(,ret0)
> > 0x403498a0 <feclearexcept+16>:  fldd 0(,ret0),fr0
> > 0x403498a4 <feclearexcept+20>:  ldi 0,ret0
> > 0x403498a8 <feclearexcept+24>:  bv r0(rp)
> > 0x403498ac <feclearexcept+28>:  ldo -40(sp),sp
> 
> PR time.  Please add danglin@gcc.gnu.org to the CC list.

Changed my mind.  It's not a GCC bug.  The second asm has to show that
it uses the memory set by the first:

#include <fenv.h>

int
feclearexcept (int excepts)
{
  struct { unsigned int sw[2]; } s;

  /* Get the current status word. */
  __asm__ volatile ("fstd %%fr0,0(%1)" : "=m" (s) : "r" (&s));

  /* Clear all the relevant bits. */
  s.sw[0] &= ~((excepts & FE_ALL_EXCEPT) << 27);
  __asm__ volatile ("fldd 0(%0),%%fr0" : : "r" (&s), "m" (s));

  /* Success.  */
  return 0;
}

I used a struct so that GCC would know exactly what memory was affected.

There is one other issue that I'm not sure about.  I presume that you
used fldd to access the floating-point status register to avoid the
situation where a floating-point identify instruction has been previously
been executed and the status register is in format three.  It's not
clear from the arch whether the fldd returns the result of the identify
or not.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
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On Fri, Jul 15, 2005 at 10:55:26PM -0400, John David Anglin wrote:
> > PR time.  Please add danglin@gcc.gnu.org to the CC list.
> 
> Changed my mind.  It's not a GCC bug.  The second asm has to show that
> it uses the memory set by the first:

Ah, thank you for the clarification. I'll try to examine the rest of
them and cleanup the assembly.
 
> #include <fenv.h>
> 
> int
> feclearexcept (int excepts)
> {
>   struct { unsigned int sw[2]; } s;
> 
>   /* Get the current status word. */
>   __asm__ volatile ("fstd %%fr0,0(%1)" : "=m" (s) : "r" (&s));
> 
>   /* Clear all the relevant bits. */
>   s.sw[0] &= ~((excepts & FE_ALL_EXCEPT) << 27);
>   __asm__ volatile ("fldd 0(%0),%%fr0" : : "r" (&s), "m" (s));
> 
>   /* Success.  */
>   return 0;
> }
> 
> I used a struct so that GCC would know exactly what memory was affected.
> 
> There is one other issue that I'm not sure about.  I presume that you
> used fldd to access the floating-point status register to avoid the
> situation where a floating-point identify instruction has been previously
> been executed and the status register is in format three.  It's not
> clear from the arch whether the fldd returns the result of the identify
> or not.

Who previously executed the COPR,0,0?

I use the fldd to set the new cleared state of the status register.

If the thread had previously executed 'fstd' followed by a 'copr,0,0'
and had not immediately thereafter executed another 'fstd' then the
operation is *undefined* as per PA 1.1 6-63.

Context switching should save and restore the states properly for this
to work.

I think the arch is very clear about the issue, but perhaps I'm
misreading something. Do you have a case where the above wouldn't work?

c.

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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
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> Who previously executed the COPR,0,0?

I dunno, incorrect identify sequence?  I agree the 1.1 arch is specific
about how to do an identify sequence.

> I use the fldd to set the new cleared state of the status register.

I had been wondering if fstw and fldw could be used, but it's an
undefined operation to set T with fldw and fstd clears T, so I believe
your use of fstd and fldd is correct in this sequence.

However, you have to be careful in using fstd to get the fp status
register as it clears T after the insn.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
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> However, you have to be careful in using fstd to get the fp status
> register as it clears T after the insn.

And, indeed the following is wrong for the above reason:

#include <fenv.h>

int
fetestexcept (int excepts)
{
  unsigned int sw[2];

  /* Get the current status word. */
  __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));

  return (sw[0] >> 27) & excepts & FE_ALL_EXCEPT;
}

You need to add a 'fldd' to the asm to restore the T bit.  Another
option might be to use fstw to access the status register in this
situation.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
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On Fri, Jul 15, 2005 at 09:54:25PM -0400, John David Anglin wrote:
> > I think gcc is to blame, or the constraints in the assembly?
> > 
> > --- GCC 4.0 ---
> > 
> > 0x40349890 <feclearexcept+0>:   ldo 40(sp),sp
> > 0x40349894 <feclearexcept+4>:   ldo -38(sp),ret0
> > 0x40349898 <feclearexcept+8>:   stw r19,-20(,sp)
> > 0x4034989c <feclearexcept+12>:  fstd fr0,0(,ret0)
> > 0x403498a0 <feclearexcept+16>:  fldd 0(,ret0),fr0
> > 0x403498a4 <feclearexcept+20>:  ldi 0,ret0
> > 0x403498a8 <feclearexcept+24>:  bv r0(rp)
> > 0x403498ac <feclearexcept+28>:  ldo -40(sp),sp
> 
> PR time.  Please add danglin@gcc.gnu.org to the CC list.
> 
> > Notice that it thinks the argument is on the stack? Are the assembly
> > constraints confusing gcc?
> 
> Probably, but its not clear at the moment.  I think the asm's need
> the volatile keyword as they have side effects that aren't known to
> gcc (i.e., scheduling might move a floating point operation past
> the asm's should the functions be inlined.

I hadn't considered the effects of rescheduling. I guess this can happen
to any code between the asm statements.

c.
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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
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> I hadn't considered the effects of rescheduling. I guess this can happen
> to any code between the asm statements.

As long as the dependencies are correct, then then shouldn't happen.
Possibly, adding a dependency on register "CCFP" is what's needed.
I don't know if that actually works but it's how we handle floating-point
condition codes internally.  I think that would allow inlining of these
routines in code that does floating-point compares and tests.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
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On Sat, Jul 16, 2005 at 01:37:50PM -0400, John David Anglin wrote:
> > Who previously executed the COPR,0,0?
> 
> I dunno, incorrect identify sequence?  I agree the 1.1 arch is specific
> about how to do an identify sequence.
 
There is no way to prevent this. An application can always shoot itself
in the foot.

And since the identify sequence should be written in assembly the
compiler can't schedule it around.

It should also be save to execute such a sequence at any point in the
insn stream.

> > I use the fldd to set the new cleared state of the status register.
> 
> I had been wondering if fstw and fldw could be used, but it's an
> undefined operation to set T with fldw and fstd clears T, so I believe
> your use of fstd and fldd is correct in this sequence.

I have to read this again to make sure I did it all right.

> However, you have to be careful in using fstd to get the fp status
> register as it clears T after the insn.

Yes, I might have some mistakes there.

c.
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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
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On Sat, Jul 16, 2005 at 03:15:34PM -0400, John David Anglin wrote:
> > I hadn't considered the effects of rescheduling. I guess this can happen
> > to any code between the asm statements.
> 
> As long as the dependencies are correct, then then shouldn't happen.
> Possibly, adding a dependency on register "CCFP" is what's needed.
> I don't know if that actually works but it's how we handle floating-point
> condition codes internally.  I think that would allow inlining of these
> routines in code that does floating-point compares and tests.

What sort of dependancy on CCFP? Do you have an example somewhere?

c.

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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
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On Sat, Jul 16, 2005 at 01:54:48PM -0400, John David Anglin wrote:
> > However, you have to be careful in using fstd to get the fp status
> > register as it clears T after the insn.
> 
> And, indeed the following is wrong for the above reason:
> 
> #include <fenv.h>
> 
> int
> fetestexcept (int excepts)
> {
>   unsigned int sw[2];
> 
>   /* Get the current status word. */
>   __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
> 
>   return (sw[0] >> 27) & excepts & FE_ALL_EXCEPT;
> }
> 
> You need to add a 'fldd' to the asm to restore the T bit.  Another
> option might be to use fstw to access the status register in this
> situation.

I'm going to test the use of fstw.

fegetexcept, fegetround also need this fix (maybe more).

There is another potential bug, I should make sure the fr0 restore is
always at the end too incase it rearms a trap.

c.
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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
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> What sort of dependancy on CCFP? Do you have an example somewhere?

No.

  If your assembler instruction can alter the condition code register, add
  @samp{cc} to the list of clobbered registers.  GCC on some machines
  represents the condition codes as a specific hardware register;
  @samp{cc} serves to name this register.  On other machines, the
  condition code is handled differently, and specifying @samp{cc} has no
  effect.  But it is valid no matter what the machine.

Thinking a little more, I believe specifying "r0" in the clobber list
of the asm will do the job.  Register 0 is used to hold condition codes
for both integer and floating point comparisons.  I don't think there's
a way to express that the register is only used.  There's no constraint
letter for r0, etc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> There is another potential bug, I should make sure the fr0 restore is
> always at the end too incase it rearms a trap.

hpux uses two little hand-coded functions to avoid this problem.  The
get operation uses fstd but it immediately restores the previous status
value with fldd.  The put does the restore in the delay slot of the return.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
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On Sat, Jul 16, 2005 at 03:48:10PM -0400, John David Anglin wrote:
> > What sort of dependancy on CCFP? Do you have an example somewhere?
> 
> No.
> 
>   If your assembler instruction can alter the condition code register, add
>   @samp{cc} to the list of clobbered registers.  GCC on some machines
>   represents the condition codes as a specific hardware register;
>   @samp{cc} serves to name this register.  On other machines, the
>   condition code is handled differently, and specifying @samp{cc} has no
>   effect.  But it is valid no matter what the machine.
> 
> Thinking a little more, I believe specifying "r0" in the clobber list
> of the asm will do the job.  Register 0 is used to hold condition codes
> for both integer and floating point comparisons.  I don't think there's
> a way to express that the register is only used.  There's no constraint
> letter for r0, etc.

Will this ever happen during inlining?

fstd chain -> memory
operation 1
			fstd chain -> memory
fldd chain -> regs
			operation 2
			fldd chain -> regs

Operation 2 could trap when expected that it couldn't because the fstd
had cleared the traps.

c.

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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
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> Will this ever happen during inlining?
> 
> fstd chain -> memory
> operation 1
> 			fstd chain -> memory
> fldd chain -> regs
> 			operation 2
> 			fldd chain -> regs
> 
> Operation 2 could trap when expected that it couldn't because the fstd
> had cleared the traps.

I guess clobbering all the fp registers plus r0 will stop this.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
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On Sat, Jul 16, 2005 at 04:29:54PM -0400, John David Anglin wrote:
> > Will this ever happen during inlining?
> > 
> > fstd chain -> memory
> > operation 1
> > 			fstd chain -> memory
> > fldd chain -> regs
> > 			operation 2
> > 			fldd chain -> regs
> > 
> > Operation 2 could trap when expected that it couldn't because the fstd
> > had cleared the traps.
> 
> I guess clobbering all the fp registers plus r0 will stop this.

That seems like overkill, I just don't want gcc schedule between the asm
statements. The fstd chain, and fldd chain are always asm statements.

Is there no other way? Clobbering will add huge register pressure and
force gcc to spill all the fpregs and restore after the call.

c.

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Subject: Re: [parisc-linux] Re: Non-inline math, and inline math broken,
	GCC to blame? (1 hppa tls toolchain regression).
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> > I guess clobbering all the fp registers plus r0 will stop this.
> 
> That seems like overkill, I just don't want gcc schedule between the asm
> statements. The fstd chain, and fldd chain are always asm statements.
> 
> Is there no other way? Clobbering will add huge register pressure and
> force gcc to spill all the fpregs and restore after the call.

Hmmm, this seems tricky:

  For example, on many targets there is a system
  register which can be set to control the rounding mode of
  floating point operations.  You might try
  setting it with a volatile @code{asm}, like this PowerPC example:

  @smallexample
	asm volatile("mtfsf 255,%0" : : "f" (fpenv));
	sum = x + y;
  @end smallexample

  @noindent
  This will not work reliably, as the compiler may move the addition back
  before the volatile @code{asm}.  To make it work you need to add an
  artificial dependency to the @code{asm} referencing a variable in the code
  you don't want moved, for example:

  @smallexample
	asm volatile ("mtfsf 255,%1" : "=X"(sum): "f"(fpenv));
	sum = x + y;
  @end smallexample

  ...

  For reasons similar to those described above, it is not possible to give
  an assembler instruction access to the condition code left by previous
  instructions.

If you clobber memory in the asm, then I think it will be a barrier
for memory accesses.  I think a function call is ok:

  a = b + c;
  z = xyzzy ();

I don't think gcc can reorder the two operations unless it can prove
the function is pure and doesn't write all memory.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Missing opcodes in PA 2.0
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I've been reviewing the opcode table for gas an noticed that the
following opcodes appear to have disappeared from PA 2.0:

{ "idtlba",     0x04001040, 0xfc00ffff, "x,(b)", pa10, 0},
{ "idtlba",     0x04001040, 0xfc003fff, "x,(s,b)", pa10, 0},
{ "iitlba",     0x04000040, 0xfc001fff, "x,(S,b)", pa10, 0},
{ "idtlbp",     0x04001000, 0xfc00ffff, "x,(b)", pa10, 0},
{ "idtlbp",     0x04001000, 0xfc003fff, "x,(s,b)", pa10, 0},
{ "iitlbp",     0x04000000, 0xfc001fff, "x,(S,b)", pa10, 0},

I'm interested in knowing if PA 2.0 processors still support these
opcodes.

There are also some opcodes that may not ever have existed:

{ "lha",        0x04001300, 0xfc00ffc0, "cZx(b),t", pa10, 0},
{ "lha",        0x04001300, 0xfc003fc0, "cZx(s,b),t", pa10, 0},

{ "fstqx",      0x3c000200, 0xfc00dfc0, "cxft,x(b)", pa10, 0},
{ "fstqx",      0x3c000200, 0xfc001fc0, "cxft,x(s,b)", pa10, 0},

{ "fstqs",      0x3c001200, 0xfc00dfc0, "cmft,5(b)", pa10, 0},
{ "fstqs",      0x3c001200, 0xfc001fc0, "cmft,5(s,b)", pa10, 0},

I can't find documentation for the following:

/* These may be specific to certain versions of the PA.  Joel claimed
   they were 72000 (7200?) specific.  However, I'm almost certain the
  mtcpu/mfcpu were undocumented, but available in the older 700 machines.  */
{ "mtcpu",      0x14001600, 0xfc00ffff, "x,^", pa10, 0},
{ "mfcpu",      0x14001A00, 0xfc00ffff, "^,x", pa10, 0},
{ "tocen",      0x14403600, 0xffffffff, "", pa10, 0},
{ "tocdis",     0x14401620, 0xffffffff, "", pa10, 0},
{ "shdwgr",     0x14402600, 0xffffffff, "", pa10, 0},
{ "grshdw",     0x14400620, 0xffffffff, "", pa10, 0},

/* gfw and gfr are not in the HP PA 1.1 manual, but they are in either
   the Timex FPU or the Mustang ERS (not sure which) manual.  */
{ "gfw",        0x04001680, 0xfc00ffdf, "cZx(b)", pa11, 0},
{ "gfw",        0x04001680, 0xfc003fdf, "cZx(s,b)", pa11, 0},
{ "gfr",        0x04001a80, 0xfc00ffdf, "cZx(b)", pa11, 0},
{ "gfr",        0x04001a80, 0xfc003fdf, "cZx(s,b)", pa11, 0},

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: James Bottomley <James.Bottomley@SteelEye.com>
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Subject: Re: [parisc-linux] Missing opcodes in PA 2.0
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Xref: news.gmane.org gmane.linux.ports.parisc:22935

On Sat, 2005-07-16 at 19:50 -0400, John David Anglin wrote:
> I've been reviewing the opcode table for gas an noticed that the
> following opcodes appear to have disappeared from PA 2.0:
> 
> { "idtlba",     0x04001040, 0xfc00ffff, "x,(b)", pa10, 0},
> { "idtlba",     0x04001040, 0xfc003fff, "x,(s,b)", pa10, 0},
> { "iitlba",     0x04000040, 0xfc001fff, "x,(S,b)", pa10, 0},
> { "idtlbp",     0x04001000, 0xfc00ffff, "x,(b)", pa10, 0},
> { "idtlbp",     0x04001000, 0xfc003fff, "x,(s,b)", pa10, 0},
> { "iitlbp",     0x04000000, 0xfc001fff, "x,(S,b)", pa10, 0},
> 
> I'm interested in knowing if PA 2.0 processors still support these
> opcodes.

These I know ... the answer's no ... that's why we have pa1.1 and pa2.2
specific paths in the tlb miss handler.

The rest I've no idea

James


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On Fri, Jul 15, 2005 at 10:26:10AM -0400, Carlos O'Donell wrote:
> Please stand up and pat yourself on the back:
> 
> make[2]: *** [/glibc/math/test-fenv.out] Error 1
> 	= Regression (1)
> make[2]: *** [/glibc/math/test-float.out] Error 1
> make[2]: *** [/glibc/math/test-double.out] Error 1
> make[2]: *** [/glibc/math/test-ifloat.out] Error 1
> make[2]: *** [/glibc/math/test-idouble.out] Error 1
> make[1]: *** [math/tests] Error 2
> make[2]: *** [/glibc/stdlib/tst-strtod.out] Error 1
> make[2]: *** [/glibc/stdlib/bug-strtod.out] Error 1
> make[1]: *** [stdlib/tests] Error 2
> make[2]: [/glibc/posix/annexc.out] Error 1 (ignored)
> make[2]: *** [/glibc/elf/tst-array1.out] Error 1
> make[2]: *** [/glibc/elf/tst-array2.out] Error 1
> make[2]: *** [/glibc/elf/tst-array3.out] Error 1
> make[2]: *** [/glibc/elf/tst-array4.out] Error 1
> make[2]: *** [/glibc/elf/tst-array1-static.out] Error 1
> 	= Regressions (5)
> make[2]: *** [/glibc/elf/tst-tls13.out] Error 1
> 	= TIMEOUTFACTOR=10 required.
> make[1]: *** [elf/tests] Error 2
> make: *** [check] Error 2

Patched up the floating point asm constraints.

make[2]: *** [/glibc/math/test-float.out] Error 1
make[2]: *** [/glibc/math/test-double.out] Error 1
make[2]: *** [/glibc/math/test-ifloat.out] Error 1
make[2]: *** [/glibc/math/test-idouble.out] Error 1
make[1]: *** [math/tests] Error 2
make[2]: *** [/glibc/stdlib/tst-strtod.out] Error 1
make[2]: *** [/glibc/stdlib/bug-strtod.out] Error 1
make[1]: *** [stdlib/tests] Error 2
make[2]: [/glibc/posix/annexc.out] Error 1 (ignored)
make: *** [check] Error 2

No regressions. But we still have a couple of functions that look like
the math is a bit wrong. However, we are doing better than non-tls, I
figure because the constraints are still a bit wrong.


----- GCC 4.0 (glibc + fp constriant fix + tls) -----
==> test-double.out <==

Test suite completed:
  2624 test cases plus 2399 tests for exception flags executed.
  24 errors occurred.

==> test-float.out <==

Test suite completed:
  2599 test cases plus 2384 tests for exception flags executed.
  23 errors occurred.

==> test-idouble.out <==

Test suite completed:
  2562 test cases plus 2337 tests for exception flags executed.
  10 errors occurred.

==> test-ifloat.out <==

Test suite completed:
  2537 test cases plus 2322 tests for exception flags executed.
  11 errors occurred.

----- GCC 3.3.5 (glibc) -----

==> test-double.out <==

Test suite completed:
  2624 test cases plus 2399 tests for exception flags executed.
  38 errors occurred.

==> test-float.out <==

Test suite completed:
  2599 test cases plus 2384 tests for exception flags executed.
  39 errors occurred.

==> test-idouble.out <==

Test suite completed:
  2562 test cases plus 2337 tests for exception flags executed.
  1 errors occurred.

==> test-ifloat.out <==

Test suite completed:
  2537 test cases plus 2322 tests for exception flags executed.
  1 errors occurred.

We are on par with the previous test results. I'm very pleased.
-----

Looking at the test failures in test-float, I see the following:

testing float (without inline functions)
Failure: Test: atan2 (-0.00756827042671106339, -.001792735857538728036)
== -1.80338464113663849327153994379639112
Result:
 is:         -1.80338394641876220703e+00  -0x1.cdaa9200000000000000p+0
 should be:  -1.80338466167449951172e+00  -0x1.cdaa9e00000000000000p+0
 difference:  7.15255737304687500000e-07   0x1.80000000000000000000p-21
 ulp       :  6.0000  
 max.ulp   :  0.0000  

I can't seem to fix this test, but I figure it's because I haven't
played enough with ulps settings that flag the test as failed.
The error is in the e-06 rang which really sucks. Any thoughts?

Next is a set of failures all related to "rint" for rounding an integer
to the correct value. The failures are very werid.

Failure: Test: rint (1.5) == 1.0
Result:
 is:          2.00000000000000000000e+00   0x1.00000000000000000000p+1
 should be:   1.00000000000000000000e+00   0x1.00000000000000000000p+0
 difference:  1.00000000000000000000e+00   0x1.00000000000000000000p+0
 ulp       :  8388608.0000
 max.ulp   :  0.0000  

That ulp is bogus? Not to mention that the rounding direction is wrong.

Lastly is:

Failure: Real part of: cacos (inf + NaN i) == NaN + inf i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: cacos (-inf + NaN i) == NaN + inf i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: cacos (NaN + inf i) == NaN - inf i: Exception "Invalid operation" set
Failure: Real part of: cacos (NaN - inf i) == NaN + inf i: Exception "Invalid operation" set
Failure: Real part of: cacos (NaN + NaN i) == NaN + NaN i: Exception "Invalid operation" set
Failure: Real part of: ccosh (inf + NaN i) == inf + NaN i: Exception "Invalid operation" set
Failure: Real part of: ccosh (-inf + NaN i) == inf + NaN i: Exception "Invalid operation" set
Failure: Real part of: cpow (NaN + NaN i, NaN + NaN i) == NaN + NaN i: Exception "Invalid operation" set
Failure: Real part of: csinh (0.0 + NaN i) == 0.0 + NaN i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (-0 + NaN i) == 0.0 + NaN i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (inf + NaN i) == inf + NaN i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (-inf + NaN i) == inf + NaN i plus sign of zero/inf not specified: Exception "Invalid operation" set

Which all looks like corner case tets for these functions and the processor
is raising an exception. I've never had a chance or desire to look at these
but I will when I have nothing better to do ;)

c.

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Subject: [parisc-linux] Next steps? hppa tls toolchain and packaging in
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Gentlemen,

We seem to have a working TLS implementation for hppa. What are some of
the next steps we want to take?

a. Submit a plabel 21/14, dir 21/14 patch to debian glibc.
   Submit the same patch to Ubuntu.

b. Submit TLS patch to binutils.

c. Submit OPD patch to binutils.
   - There may still be some issues about this patch with regards
     to the behvious of --export-dynamic.

d. Submit patches to upstream glibc for TLS
   - Linuxthread patches are being handled by drow.
   - Sysdep patches are handled by Roland/Ulrich.
   - Luckily no core changes required.

e. Work at futex implementation.
   - Mockup and test.

f. Work at NPTL implementation
   - Already started thanks to Randolph.

Any extra entries to add to the list?

How do we handle this:

1. Packages built with a newer toolchain can emit OPD's
2. These packages should require a newer glibc.

Can we make debian-binutils depend on a newer libc?
I still don't see how we can stop someone from isntalling a package that
has these relocs but not a new libc?

Cheers,
Carlos.

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On Wed, Jul 13, 2005 at 11:56:28PM -0400, John David Anglin wrote:
...
> That's what I was thinking when I wrote the message.  Under linux,
> both the left and right halves of fr22 end up with 0x80000000.  Under
> hpux, the left result is 0x80000000 and the right 0.  The only other
> explanation is that the c3k fpu has a bug that's not present in an A500
> (doubtful).

If they are running at the same clock speed, they are likely to have
identical CPUs. Some of the 440Mhz boxes did roll CPU HW version
after initial release - including some SMP bugs that C3K wouldn't
be exposed to. I'm skeptical it's a bug in the FPU unless you
can demonstrate the same code works on another (newer) CPU model.

thanks,
grant
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> On Wed, Jul 13, 2005 at 11:56:28PM -0400, John David Anglin wrote:
> ...
> > That's what I was thinking when I wrote the message.  Under linux,
> > both the left and right halves of fr22 end up with 0x80000000.  Under
> > hpux, the left result is 0x80000000 and the right 0.  The only other
> > explanation is that the c3k fpu has a bug that's not present in an =
> A500
> > (doubtful).
> 
> If they are running at the same clock speed, they are likely to have
> identical CPUs. Some of the 440Mhz boxes did roll CPU HW version
> after initial release - including some SMP bugs that C3K wouldn't
> be exposed to. I'm skeptical it's a bug in the FPU unless you
> can demonstrate the same code works on another (newer) CPU model.

Actually, it's the reverse.  I believe that the A500 is a 550 MHz
8600 and the C3K is a 875 MHz 8700.  It's really unclear which of
the new PA 2.0 floating-point instructions are actually supported
in hardware.  I'd have to do some timing tests to figure that out
as there's not much documentation.  It is clear that linux has code
in the kernel to handle the convert in question.

If we have a bunch of instructions that are emulated in the kernel,
it probably would be best if we disabled support for them in GCC and
used the PA 1.x code instead.  It's better tested and I doubt there
would be much of a performance hit.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "soete.joel" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] PA 2.0 float conversion to unsigned long long
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---------- Initial header -----------

>>From      : parisc-linux-bounces@lists.parisc-linux.org
To          : grundler@parisc-linux.org
CC          : kyle@mcmartin.ca,parisc-linux@lists.parisc-linux.org
Date      : Mon, 18 Jul 2005 18:34:17 -0400 (EDT)
Subject : Re: [parisc-linux] PA 2.0 float conversion to unsigned long lon=
g

> > On Wed, Jul 13, 2005 at 11:56:28PM -0400, John David Anglin wrote:
> > ...
> > > That's what I was thinking when I wrote the message.  Under linux,
> > > both the left and right halves of fr22 end up with 0x80000000.  Und=
er
> > > hpux, the left result is 0x80000000 and the right 0.  The only othe=
r
> > > explanation is that the c3k fpu has a bug that's not present in an =
=3D
> > A500
> > > (doubtful).
> > 
Dave would you mean that c3k was runing parisc-linux and a500 hpux?

> > If they are running at the same clock speed, they are likely to have
> > identical CPUs. Some of the 440Mhz boxes did roll CPU HW version
> > after initial release - including some SMP bugs that C3K wouldn't
> > be exposed to. I'm skeptical it's a bug in the FPU unless you
> > can demonstrate the same code works on another (newer) CPU model.
> 
> Actually, it's the reverse.  I believe that the A500 is a 550 MHz
> 8600 and the C3K is a 875 MHz 8700.
I doubt it help but with parisc-linux, I also encounter the same pb with =
a
pa8000 180mhz (d380), as well as on a pa8600 440Mhz (b2k) or same pa8600
550Mhz (n4k smp)

(sorry no pa2.0 running hpux on which I could install gcc :_( ) 

> It's really unclear which of
> the new PA 2.0 floating-point instructions are actually supported
> in hardware.  I'd have to do some timing tests to figure that out
> as there's not much documentation.  It is clear that linux has code
> in the kernel to handle the convert in question.
> 
mmm fwiw, when I did the test replacing float with double as:
unsigned long long
d2ull(double f)
{
  return (unsigned long long int) f;
}

int
main ()
{
  unsigned long long x1, x2;

  x1 =3D ((~0ULL) >> 1);
  x2 =3D ((~0ULL) >> 1);

  printf("x1 =3D 0x%llx\n", x1);
  printf("d2ull((double) x1) =3D 0x%llx\n", d2ull((double) x1));

  printf("(~0ULL) >> 1 =3D 0x%llx\n", (~0ULL) >> 1);
  printf("((~0ULL) >> 1) + 1 =3D 0x%llx\n", ((~0ULL) >> 1) + 1);

  if (d2ull((double) x1) !=3D (~0ULL) >> 1 &&  /* 0x7fffffff */
      d2ull((double) x2) !=3D ((~0ULL) >> 1) + 1)
    abort();
  return 0;
}
/*
x1 =3D 0x7fffffffffffffff
d2ull((double) x1) =3D 0x8000000000000000
(~0ULL) >> 1 =3D 0x7fffffffffffffff
((~0ULL) >> 1) + 1 =3D 0x8000000000000000
 */

(I just used x var to encounter the 'ull -> float' in main() too)

Is there some pb in sgl -> udw convertion?

Joel=0A=0A-------------------------------------------------------=0ANOTE!=
 My email address is changing to ... @scarlet.be=0APlease make the necess=
ary changes in your address book. =0A=0A

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Subject: Re: [parisc-linux] PA 2.0 float conversion to unsigned long long
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> Dave would you mean that c3k was runing parisc-linux and a500 hpux?

Correct.

> Is there some pb in sgl -> udw convertion?

Could be.  There is a significant different between PA 1.x and 2.0
in this respect.  PA 2.0 has "hardware" instructions to do these
conversions.  GCC currently uses these instructions when generating
PA 2.0 code.

Dave
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Xref: news.gmane.org gmane.linux.ports.parisc:22942

I've been using nfs to try and save backup images from my B132L
(2.6.12-pa2) with a simple:
  dd if=/dev/sda of=/mnt/bulk/sda-image bs=512

Every time the machine hangs solid - the heartbeat LED even stops.
Usually it hangs after around 1 to 2 gigs have been transferred.  There
are no log entries at the time of the hang.  IT just... stops.

I'm using a 3c905 PCI ethernet card rather than the stock 10 megabit
LASI on board.

I'm wondering if this might be an issue with the ethernet driver when
compiled for PARISC.  I've tried very large ftp transfers and can't
reproduce the problem that way.

I've also tried NFS over TCP and  tried reducing the rsize/wsize below
1500 bytes to prevent IP fragmentation.  Neither of which seem to help.

Are there any known NFS issues right now?  Any ideas?  Suggestions?

	Kurt.
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On Tue July 19 2005 16:02, Kurt Fitzner wrote:
> I've been using nfs to try and save backup images from my B132L
> (2.6.12-pa2) with a simple:
>   dd if=/dev/sda of=/mnt/bulk/sda-image bs=512
> 
> Every time the machine hangs solid - the heartbeat LED even stops.
> Usually it hangs after around 1 to 2 gigs have been transferred.  There
> are no log entries at the time of the hang.  IT just... stops.
> 
> I'm using a 3c905 PCI ethernet card rather than the stock 10 megabit
> LASI on board.
> 
> I'm wondering if this might be an issue with the ethernet driver when
> compiled for PARISC.  I've tried very large ftp transfers and can't
> reproduce the problem that way.
> 
> I've also tried NFS over TCP and  tried reducing the rsize/wsize below
> 1500 bytes to prevent IP fragmentation.  Neither of which seem to help.
> 
> Are there any known NFS issues right now?  Any ideas?  Suggestions?
> 
Questions/Suggestions only.

Any hints in the log of the receiving (nfs server) side?

Any portion of /dev/sda mounted somewhere?

Is the /mnt/bulk/sda-image mount point on /dev/sda* ?
That is, is there a drive in common with '/', '/mnt', '/dev'
and the entire device '/dev/sda' ?

Can you achive your goal with a file copy rather than
a disk image?  Have you tried running rsync?

Can you successfully transfer (dd) a single file larger than
your trouble point size when trying to transfer the entire device?

Have you tried a blocksize != 512 with the dd command?
Perhaps an even sub-multiple of the packet size so that the
network stack does not have to fragment the dd blocks.

Mike
> 	Kurt.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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On Tue, Jul 19, 2005 at 03:02:55PM -0600, Kurt Fitzner wrote:
> I'm using a 3c905 PCI ethernet card rather than the stock 10 megabit
> LASI on board.
> 
> I'm wondering if this might be an issue with the ethernet driver when
> compiled for PARISC.  I've tried very large ftp transfers and can't
> reproduce the problem that way.

TOC dump, IIR, IOAQ/IASQ locations? Come on people... It's really hard
to even begin to figure out what's wrong if no debugging information
has been provided...

http://www.parisc-linux.org/faq/kernelbug-howto.html

-- 
Kyle McMartin
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> TOC dump, IIR, IOAQ/IASQ locations? Come on people... It's really hard
> to even begin to figure out what's wrong if no debugging information
> has been provided...

2.6.8.1-pa11 is quite stable (12 days up and numerous GCC builds).
As Joel has indicated, this can be pushed a bit further.  However,
2.6.10 and later are not stable.  Randolph and James resolved one
of the major bugs (fp register bug).  However, this wasn't sufficient
to stabilize 2.6.12 under load.  I spent considerable time trying
to isolate the change(s) that introduced the instability but this
is difficult and time consuming.

It might help to have a "stable" branch that is maintained longer
than is current practice.  At a minimum, the current tree needs to
be slushed until the main problems are resolved.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

PS: TOC on Linux gsyprf11.external.hp.com 2.6.11-pa4 #5 SMP Sat May 21 19:09:19 PDT 2005 parisc64 GNU/Linux

Proc 0 r2 -> return from call to __brelse in journal_put_journal_head
Proc 0 IIA Offset -> location in __brelse

Proc 1 IIA Offset -> to final loop in panic.

-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03  0000000000000000  000000001055f4c0  000000001023b3f4  0000000008108a24
04-07  0000000010552cc0  0000000204228918  0000000010517a40  000000013a7a0868
08-11  0000000000000001  0000000204228918  00000000ff85fc00  0000000000001000
12-15  0000000000000001  0000000013566ee8  0000000000000000  0000000204228918
16-19  0000000000000001  0000000000080000  0000000010553cc0  0000000000000000
20-23  0000000010517a40  0000000008108a24  000000000800000f  0000000008108a24
24-27  0000000000000001  00000000ffee4400  0000000204228930  0000000010552cc0
28-31  000000013a7a0868  00000000f8688a80  00000000f8688b30  0000000000000040


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  0000000000010c02  0000000000000000  00000000000000c0  000000000000003f
12-15  0000000000000000  0000000000000000  0000000000106000  fff0000000000000
16-19  0002b96338e536de  0000000000000000  00000000101b68dc  0000000008000240
20-23  0000000000000000  0000000000000000  00000000080c000e  e200000000000000
24-27  00000000004cc000  00000000a4152000  0000000000041020  0000000041198b80
28-31  5555555555555555  5555555555555555  00000000f8688000  000000001051c000

Space Registers 0 - 7
00-03  04300800          04300800          00000000          04300800
04-07  00000000          00000000          00000000          00000000

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x00000000101b68d4
CPU State                    = 0x9e000001



-----------------  Processor 1 HPMC Information - PDC Version: 42.09  ------

   * * * No valid timestamp * * *


	  No HPMC chassis codes logged

	  General Registers 0 - 31
	  00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000


	  Control Registers 0 - 31
	  00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000

	  Space Registers 0 - 7
	  00-03  00000000          00000000          00000000          00000000
	  04-07  00000000          00000000          00000000          00000000


	  IIA Space (back entry)       = 0x0000000000000000
	  IIA Offset (back entry)      = 0x0000000000000000
	  Check Type                   = 0x00000000
	  CPU State                    = 0x00000000
	  Cache Check                  = 0x00000000
	  TLB Check                    = 0x00000000
	  Bus Check                    = 0x00000000
	  Assists Check                = 0x00000000
	  Assist State                 = 0x00000000
	  Path Info                    = 0x00000000
	  System Responder Address     = 0x0000000000000000
	  System Requestor Address     = 0x0000000000000000


	  Floating Point Registers 0 - 31
	  00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  08-11  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  12-15  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  16-19  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  20-23  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  24-27  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  28-31  0000000000000000  0000000000000000  0000000000000000  0000000000000000


	  Check Summary                = 0x0000000000000000
	  Available Memory             = 0x0000000000000000
	  CPU Diagnose Register 2      = 0x0000000000000000
	  CPU Status Register 0        = 0x0000000000000000
	  CPU Status Register 1        = 0x0000000000000000
	  SADD LOG                     = 0x0000000000000000
	  Read Short LOG               = 0x0000000000000000



	  -----------------  Processor 1 LPMC Information ------------------

	  Check Type                   = 0x00000000
	  IC Parity Info               = 0x00000000
	  Cache Check                  = 0x00000000
	  TLB Check                    = 0x00000000
	  Bus Check                    = 0x00000000
	  Assists Check                = 0x00000000
	  Assist State                 = 0x00000000
	  Path Info                    = 0x00000000
	  System Responder Address     = 0x0000000000000000
	  System Requestor Address     = 0x0000000000000000



	  -----------------  Processor 1 TOC Information -------------------

	  General Registers 0 - 31
	  00-03  0000000000000000  00000000103c5ca0  000000001014c628  00000000fe38c620
	  04-07  0000000010552cc0  00000000046db5d4  00000000105cc360  00000000105ccfb0
	  08-11  0000000000000018  0000000010424050  0000000000000001  00000000bd893300
	  12-15  0000000000000000  00000000ff85fc00  0000000000000008  00000000fe38c288
	  16-19  00000000fe38c620  00000000ff85b400  0000000000000000  0000000000024089
	  20-23  0002b96357cd9ae6  000000000009eb10  000000000000ff00  fffffff0f0430ed8
	  24-27  0000000000000520  0000000000000000  00000000046db5d4  0000000010552cc0
	  28-31  0000000000000000  00000000fe38cc20  00000000fe38cc50  0203010200802004


	  Control Registers 0 - 31
	  00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
	  08-11  000000000000e486  0000000000000000  00000000000000c0  0000000000000038
	  12-15  0000000000000000  0000000000000000  0000000000106000  0000000000000000
	  16-19  0002b96357d799de  0000000000000000  000000001014c67c  00000000020008b3
	  20-23  00000000103403b8  00000000e338cba8  000000ff0804fd0f  8140000000000000
	  24-27  00000000004cc000  00000000d153a000  0000000000041020  000000f0f0165650
	  28-31  000000f0f0165650  5555555555555555  00000000fe38c000  0000000000008020

	  Space Registers 0 - 7
	  00-03  03921800          00000000          00000000          03921800
	  04-07  00000000          00000000          00000000          00000000

	  IIA Space (back entry)       = 0x0000000000000000
	  IIA Offset (back entry)      = 0x000000001014c680
	  CPU State                    = 0x9e000001


	  --------------  Memory Error Log Information  --------------

	  Bus 0 Log Information


	     No errors logged for this bus


	     ------------  I/O Module Error Log Information  ------------


		No I/O module errors logged


		Service Menu: Enter command >
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Subject: Re: [parisc-linux] Machine hanging during high-traffic NFS
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Xref: news.gmane.org gmane.linux.ports.parisc:22946

JDA wrote:
> It might help to have a "stable" branch that is maintained longer
> than is current practice.  At a minimum, the current tree needs to
> be slushed until the main problems are resolved.

I definitely concur on that. That's something I already suggested on
IRC a while ago, and I believe that we probably all agree that there's
such a need. The questions being how to do it properly (maitaining a
separate "stable" branch is not absolutely trivial), and also *who* is
going to maintain it.

In any case, we really want to take time to fix our bugs. I don't know
if we need to somehow "freeze" our tree to do that. I believe we sort
of need that, since we keep injecting new bugs on top of mostly
unknown existing ones involving and/or impacting many different
subsystems.

Maybe some sort of "puffinfest" would help cleaning up our kernel
before the situation gets out of control.

I'd really wish we talk about that while at OLS, with the guys that
are attending it ;)

my 2c

T-Bone




=20


>=20
>=20
>=20
> 	  -----------------  Processor 1 LPMC Information
------------------
>=20
> 	  Check Type                   =3D 0x00000000
> 	  IC Parity Info               =3D 0x00000000
> 	  Cache Check                  =3D 0x00000000
> 	  TLB Check                    =3D 0x00000000
> 	  Bus Check                    =3D 0x00000000
> 	  Assists Check                =3D 0x00000000
> 	  Assist State                 =3D 0x00000000
> 	  Path Info                    =3D 0x00000000
> 	  System Responder Address     =3D 0x0000000000000000
> 	  System Requestor Address     =3D 0x0000000000000000
>=20
>=20
>=20
> 	  -----------------  Processor 1 TOC Information
-------------------
>=20
> 	  General Registers 0 - 31
> 	  00-03  0000000000000000  00000000103c5ca0  000000001014c628=20
00000000fe38c620
> 	  04-07  0000000010552cc0  00000000046db5d4  00000000105cc360=20
00000000105ccfb0
> 	  08-11  0000000000000018  0000000010424050  0000000000000001=20
00000000bd893300
> 	  12-15  0000000000000000  00000000ff85fc00  0000000000000008=20
00000000fe38c288
> 	  16-19  00000000fe38c620  00000000ff85b400  0000000000000000=20
0000000000024089
> 	  20-23  0002b96357cd9ae6  000000000009eb10  000000000000ff00=20
fffffff0f0430ed8
> 	  24-27  0000000000000520  0000000000000000  00000000046db5d4=20
0000000010552cc0
> 	  28-31  0000000000000000  00000000fe38cc20  00000000fe38cc50=20
0203010200802004
>=20
>=20
> 	  Control Registers 0 - 31
> 	  00-03  0000000000000000  0000000000000000  0000000000000000=20
0000000000000000
> 	  04-07  0000000000000000  0000000000000000  0000000000000000=20
0000000000000000
> 	  08-11  000000000000e486  0000000000000000  00000000000000c0=20
0000000000000038
> 	  12-15  0000000000000000  0000000000000000  0000000000106000=20
0000000000000000
> 	  16-19  0002b96357d799de  0000000000000000  000000001014c67c=20
00000000020008b3
> 	  20-23  00000000103403b8  00000000e338cba8  000000ff0804fd0f=20
8140000000000000
> 	  24-27  00000000004cc000  00000000d153a000  0000000000041020=20
000000f0f0165650
> 	  28-31  000000f0f0165650  5555555555555555  00000000fe38c000=20
0000000000008020
>=20
> 	  Space Registers 0 - 7
> 	  00-03  03921800          00000000          00000000        =20
03921800
> 	  04-07  00000000          00000000          00000000        =20
00000000
>=20
> 	  IIA Space (back entry)       =3D 0x0000000000000000
> 	  IIA Offset (back entry)      =3D 0x000000001014c680
> 	  CPU State                    =3D 0x9e000001
>=20
>=20
> 	  --------------  Memory Error Log Information  --------------
>=20
> 	  Bus 0 Log Information
>=20
>=20
> 	     No errors logged for this bus
>=20
>=20
> 	     ------------  I/O Module Error Log Information  ------------
>=20
>=20
> 		No I/O module errors logged
>=20
>=20
> 		Service Menu: Enter command >
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>=20
--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [parisc-linux] Machine hanging during high-traffic NFS
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To: Thibaut VARENE <varenet@esiee.fr>
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Xref: news.gmane.org gmane.linux.ports.parisc:22947

On Wed, Jul 20, 2005 at 05:57:19AM +0300, Thibaut VARENE wrote:
> I definitely concur on that. That's something I already suggested on
> IRC a while ago, and I believe that we probably all agree that there's
> such a need. The questions being how to do it properly (maitaining a
> separate "stable" branch is not absolutely trivial), and also *who* is
> going to maintain it.

I believe I said at the time that you were more than welcome to maintain
such a thing.  If you're just volunteering me to do more work ... sorry,
not interested.

> In any case, we really want to take time to fix our bugs. I don't know
> if we need to somehow "freeze" our tree to do that. I believe we sort
> of need that, since we keep injecting new bugs on top of mostly
> unknown existing ones involving and/or impacting many different
> subsystems.

Sounds good to me

> Maybe some sort of "puffinfest" would help cleaning up our kernel
> before the situation gets out of control.
> 
> I'd really wish we talk about that while at OLS, with the guys that
> are attending it ;)

We can certainly get together at some point ... this week's pretty busy though!

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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To: "dave" <dave@hiauly1.hia.nrc.ca>
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> > Dave would you mean that c3k was runing parisc-linux and a500 hpux?
> 
> Correct.
> 
Ok clear.

> > Is there some pb in sgl -> udw convertion?
> 
> Could be.  There is a significant different between PA 1.x and 2.0
> in this respect.  PA 2.0 has "hardware" instructions to do these
> conversions.  GCC currently uses these instructions when generating
> PA 2.0 code.

After severall hours of test, I changed my mind.

I have my ws runing hpux 11.00 and gcc to compile pr code ;-)

I have a n4k 2-way pa8600 550Mhz testing parisc-linux 2.6.12-pa2-n4ksmp
(ggc-4.0 + fpr limits) 

I can also use a developement n4k 4-way pa8600 440Mhz (not od this clock)=

runing hpux 11.00 (with latest patch bundle).

First thing on p-l I noticed:
I get rid of unsigned by:
long long
f2ull(float f)
{
 return (long long) f;
}

And it print well 'f2ull((float) ((~0ULL) >> 1)) =3D 0x7fffffffffffffff'

I let you also check the resulting .s file when I play with following:
unsigned long long
f2ull(float f)
{
  long long tmp =3D (long long) f;
  return (unsigned long long) temp;
}

Semanticaly it would be the same as the original but the result is also:
'f2ull((float) ((~0ULL) >> 1)) =3D 0x7fffffffffffffff' ?

Now the brain shacking ;-)

the behaviour comparison between hpux and p-l (on the original code):
I used some gui gdb helper (wdb on hpux and insight and ddd on p-l)

    * at the end of f2ull() ret0 and ret1 (aka r28 & r29) are well differ=
ent:
        hpux: r28 =3D=3D 0x80000000; r29 =3D=3D 0x00000000,
        p-l : r28 =3D r29 =3D=3D 0x80000000
    ???? (the code of .s file is quite the same ;-)

    * very strange is the very difference of fpsr:
      (e.g. after fldw r3(,ret0),fr22
            hpux : fpsr =3D=3D 0x40

            after next fcnv insn
            hpux : fpsr =3D=3D 0x80000000; 

            p-l  : fpsr stay constantly =3D=3D 0x0

So as far as this time the 2 hw are nearly the same, as well as the execu=
table
txt, the 2 previous test make me better thought that fpu are 'configurabl=
e'
(may be not all model) and are not setup the same way by the different OS=
. 
That said, I never read anything about this but i don't see other reasona=
ble
explanation?


Joel

PS:
obviously gdb relase are very different on the 2 systems, but I hope that=
 such
'printf "%x\n", $fpsr' (or what else as reg) could show me actual cpu reg=

value, though.

=0A=0A-------------------------------------------------------=0ANOTE! My =
email address is changing to ... @scarlet.be=0APlease make the necessary =
changes in your address book. =0A=0A

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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] Machine hanging during high-traffic NFS
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On Wed, Jul 20, 2005 at 12:59:42AM -0600, Kurt Fitzner wrote:
> I apologize - I had not seen that page before.  I should have done more
> research myself before reporting the issue.

FAQ has a reference to it. But thanks for reporting the bug.

> There is no console output prior to the hang, and no kernel fault to
> obtain the IAOQ/IASQ information from.  I did perform a TOC.  The data
> from that is below.
> 
> If there is any further information that might help, please let me know.

thanks - the key bit to start with is GR02 and IOAQ :

GR02 0x101e3910 nfs_mark_request_dirty+24
IOAQ 0x1010c1b0 intr_restore+11c

Sounds like either an interrupt storm from the card or a deadlock
in nfs code. Unfortunately TOC doesn't provide more stack trace
informaion. And I'm not able to chase NFS issues at the moment.

grant
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Kyle McMartin wrote:

> TOC dump, IIR, IOAQ/IASQ locations? Come on people... It's really hard
> to even begin to figure out what's wrong if no debugging information
> has been provided...
> 
> http://www.parisc-linux.org/faq/kernelbug-howto.html

I apologize - I had not seen that page before.  I should have done more
research myself before reporting the issue.

There is no console output prior to the hang, and no kernel fault to
obtain the IAOQ/IASQ information from.  I did perform a TOC.  The data
from that is below.

If there is any further information that might help, please let me know.

	Kurt.


Information about the machine/kernel:
- Kernel 2.6.12-pa2
- Compiled with gcc 3.3.5 (Debian 1:3.3.5-13), Binutils 2.15-6
- B132L w/ 3COM 3c905 ethernet card
- System map at http://www.excelcia.org/~kfitzner/System.map-2.6.12
- Kernel config at http://www.excelcia.org/~kfitzner/config-2.6.12

Output of "ser pim toc":
General Registers 0 - 31
 0 -  3  0x00000000  0x10000000  0x101e3910  0x00000000
 4 -  7  0x1389a14c  0x1389a034  0x105fcf60  0x1389a108
 8 - 11  0x00000000  0x1389a14c  0x00000200  0x15273720
12 - 15  0x00000200  0x00000200  0x00000200  0x00000000
16 - 19  0x14502640  0x10428768  0x00000001  0x000280ca
20 - 23  0x17468122  0x000280ca  0x00000015  0x00000000
24 - 27  0x0000010f  0x1389a0f8  0x17468122  0x10412010
28 - 31  0x00000000  0x03980700  0x13980940  0x1014b700

Control Registers 0 - 31
 0 -  3  0x00000000  0x00000000  0x00000000  0x00000000
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000
 8 - 11  0x00002632  0x00000000  0x000000c0  0x00000010
12 - 15  0x00000000  0x00000000  0x0010b800  0xf1000000
16 - 19  0x4c31b913  0x00000000  0x1010c1b0  0x001f0e60
20 - 23  0x00000000  0x1010c19c  0x0004ff00  0x01000000
24 - 27  0x004a0000  0x0342a000  0xffffffff  0x40e5fb80
28 - 31  0xaaaaaaaa  0x11111111  0x13980000  0x104ac000

Space Registers 0 - 7
 0 -  3  0x00000000  0x00000000  0x00000000  0x00001319
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000

IIA Space                    = 0x00000000
IIA Offset                   = 0x1010c1b0
CPU State                    = 0x9e000001
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Xref: news.gmane.org gmane.linux.ports.parisc:22951

John David Anglin wrote:
> 2.6.8.1-pa11 is quite stable (12 days up and numerous GCC builds).

I have switched to that version and now cannot reproduce the hang
problem.  Thank-you for the suggestion.

> It might help to have a "stable" branch that is maintained longer
> than is current practice.  At a minimum, the current tree needs to
> be slushed until the main problems are resolved.
> Grant Grundler wrote:

I am used to the old classic 'stable' line where each successive kernel
release under the stable tree was (theoretically) more stable than the
previous one.  Perhaps, at a suggestion, a compromise can be reached by
relabelling kernels.  When one is found to be quite stable label it the
2.6.N-paX.  Other than that, call them 2.6.N-paX-test.

It shouldn't require too much in the way of maintenance and it might
keep naive users (like me) from using unstable kernels before they are
ready to give meaningful bug reports and feedback on problems in them.

Grant Grundler wrote:
> Sounds like either an interrupt storm from the card or a deadlock
> in nfs code. Unfortunately TOC doesn't provide more stack trace
> informaion. And I'm not able to chase NFS issues at the moment.

I 'downgraded' to 2.6.8.1-pa11 as Mr. Anglin suggested and I am not able
to reproduce the hang.  Would it be helpful if I were to identify the
exact kernel version where the hang first begins to occur?

	Kurt.
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Xref: news.gmane.org gmane.linux.ports.parisc:22952

I was thinking that perhaps it would be useful to have a tool to help
collate information after a hang/crash.  Something you would run on the
next boot.

I wasn't able to tell from a cursory glance at pdc_stable.c, but if the
driver supports it then perhaps the tool could read HPMC/TOC data post
crash from nvram (rather than having to write out or use a serial
console to capture 'ser pim' data).  It could then cross reference the
crash address with the System.map, gather pre-crash data from the logs
and a machine profile from /proc.

If something like this would be useful, I could do with having a project
to help me learn the ropes.

	Kurt.
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Hi Gurus,

I plan to install Debian hppa in 712/60. I hope to install the basic
packages with CD1 and later install other packages with "apt-get". Can
anyone confirm me if the following image is the correct one to start
with?

http://cdimage.debian.org/debian-cd/3.1_r0a/hppa/iso-cd/debian-31r0a-hppa-b=
inary-1.iso

1. Will it result in a minimum install system (with network)?
2. Is 96MB memory OK for debian installer to work?

Apologies if this question is too un-nerdish....

Many thanks...
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On Thu July 21 2005 07:30, Grant Grundler wrote:
> On Thu, Jul 21, 2005 at 12:36:27AM -0400, Carlos O'Donell wrote:
> > We need better tools for this... I wonder if we still have lkcd support
> > for hppa.
> 
> I have the "most recent" (2.4.20) patch from Bruno Vidal 
> and he had it working on most of the platforms (32 and 64-bit).
> It didn't get included becuase of (my) lack of time to integrate
> and the fact that it wasn't popular at the time. I'm really
> happy to see that's changed.
> 
Grant,
It is on sourceforge.net
http://sourceforge.net/project/showfiles.php?group_id=2726&package_id=108740

See: lkcd.sourceforge.net

Mike
> Bruno, is that posted someplace publicly or can I post it?
> (I'm hoping Bruno is still subscribed to p-l)
> 
> > If we had lkcd support would you be willing to run a modified kernel on
> > parisc-linux?
> 
> I would.
> In fact, I'd change all the default config files to include it.
> 
> thanks,
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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On Thu, Jul 21, 2005 at 01:42:12AM -0600, Kurt Fitzner wrote:
> I 'downgraded' to 2.6.8.1-pa11 as Mr. Anglin suggested and I am not able
> to reproduce the hang.  Would it be helpful if I were to identify the
> exact kernel version where the hang first begins to occur?

Definitely. Be warned that this can be very time consuming.
If you can narrow the window to a major kernel release,
that would already be very helpful. The exact -paX version
would of course be perfect.

thanks,
grant
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On Thu, Jul 21, 2005 at 01:51:04AM -0600, Kurt Fitzner wrote:
> I was thinking that perhaps it would be useful to have a tool to help
> collate information after a hang/crash.  Something you would run on the
> next boot.
> 
> I wasn't able to tell from a cursory glance at pdc_stable.c, but if the
> driver supports it then perhaps the tool could read HPMC/TOC data post
> crash from nvram (rather than having to write out or use a serial
> console to capture 'ser pim' data).

We thought of that before but there are a few issues:
1) stable storage access is only via PDC calls.
2) format of PIM data is platform dependent - ie every model machine
   could have a different format. In practice, ISTR the format usually
   is the same for a given processor model and not each model of machine.

>  It could then cross reference the
> crash address with the System.map, gather pre-crash data from the logs
> and a machine profile from /proc.
> 
> If something like this would be useful, I could do with having a project
> to help me learn the ropes.

Lack of documentation will make this a fairly hard project. :^(

sorry,
grant
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] Debian hppa request install
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To: Karthik <molecularbiophysics@gmail.com>
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On Thu, Jul 21, 2005 at 10:35:50AM +0200, Karthik wrote:
> Hi Gurus,
> 
> I plan to install Debian hppa in 712/60. I hope to install the basic
> packages with CD1 and later install other packages with "apt-get".
...
> 2. Is 96MB memory OK for debian installer to work?

yes - but 712/60 isn't exactly blazing fast.
But I do expect it to be fairly stable.

grant
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From: Carlos O'Donell <carlos@systemhalted.org>
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Subject: Re: [parisc-linux] Bug report data collection tool
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On Thu, Jul 21, 2005 at 06:58:53AM -0600, Grant Grundler wrote:
> On Thu, Jul 21, 2005 at 01:51:04AM -0600, Kurt Fitzner wrote:
> > I was thinking that perhaps it would be useful to have a tool to help
> > collate information after a hang/crash.  Something you would run on the
> > next boot.
> > 
> > I wasn't able to tell from a cursory glance at pdc_stable.c, but if the
> > driver supports it then perhaps the tool could read HPMC/TOC data post
> > crash from nvram (rather than having to write out or use a serial
> > console to capture 'ser pim' data).
> 
> We thought of that before but there are a few issues:
> 1) stable storage access is only via PDC calls.
> 2) format of PIM data is platform dependent - ie every model machine
>    could have a different format. In practice, ISTR the format usually
>    is the same for a given processor model and not each model of machine.

Don't we already have 1) thanks to lkcd?
And as far as 2) can't you just do that through hte PDC too?

> >  It could then cross reference the
> > crash address with the System.map, gather pre-crash data from the logs
> > and a machine profile from /proc.
> > 
> > If something like this would be useful, I could do with having a project
> > to help me learn the ropes.
> 
> Lack of documentation will make this a fairly hard project. :^(

Really?

This sounds like kexec + lkcd.

c.
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On Thu, Jul 21, 2005 at 01:42:12AM -0600, Kurt Fitzner wrote:
> I 'downgraded' to 2.6.8.1-pa11 as Mr. Anglin suggested and I am not able
> to reproduce the hang.  Would it be helpful if I were to identify the
> exact kernel version where the hang first begins to occur?
> 

Binary searching from 2.6.8.1-pa11 onwards would be helpful.

[Pick the middle version between 2.6.8.1 and current, if it's broken, at
 the middle of 2.6.8.1-pa11 to middle, otherwise middle to current, and
 continue until you can narrow the timeframe.]

Cheers,
-- 
Kyle McMartin
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> On Thu, Jul 21, 2005 at 01:42:12AM -0600, Kurt Fitzner wrote:
> > I 'downgraded' to 2.6.8.1-pa11 as Mr. Anglin suggested and I am not able
> > to reproduce the hang.  Would it be helpful if I were to identify the
> > exact kernel version where the hang first begins to occur?
> 
> Definitely. Be warned that this can be very time consuming.
> If you can narrow the window to a major kernel release,
> that would already be very helpful. The exact -paX version
> would of course be perfect.

I know that 32-bit 2.6.10 isn't stable on my c3k.  There is a known
bug with kernel memcpy and fpregs.  Either James' fix needs to be
backported, or builds need to be done with gcc-4.0.0 (or 4.0.1) using
the -mfixed-range as discussed previously on the list.  I haven't
had time to try this.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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John David Anglin wrote:

> I know that 32-bit 2.6.10 isn't stable on my c3k.  There is a known
> bug with kernel memcpy and fpregs.

Well, as far as the bug I am reporting goes, so far I have narrowed it
down to a kernel later than 2.6.10-pa11 and before 2.6.11-pa4.  It
appears that whatever went into 2.6.10 isn't to blame.

It looks like the interrupt storm theory is best.  The functions I get
from the TOC data this time are:

GRO2 0x101060e0 handle_interruption+6c
IOAQ 0x101120dc handle_unaligned+2c0

I am curious, though.  This time when it hung the hearbeat didn't stop.
 Does this mean that it didn't hang as solid as the other times?  Are
interrupts still being handled at some kernel level if the heartbeat LED
is flashing normally?  If this is the case, then this means the TOC data
may be useless this time around, right?

	Kurt.
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On Thu, Jul 21, 2005 at 06:29:46PM -0600, Kurt Fitzner wrote:
> John David Anglin wrote:
> 
> > I know that 32-bit 2.6.10 isn't stable on my c3k.  There is a known
> > bug with kernel memcpy and fpregs.
> 
> Well, as far as the bug I am reporting goes, so far I have narrowed it
> down to a kernel later than 2.6.10-pa11 and before 2.6.11-pa4.  It
> appears that whatever went into 2.6.10 isn't to blame.

Ok...If you were to try one more kernel, could it be 2.6.11-pa1?

> It looks like the interrupt storm theory is best.  The functions I get
> from the TOC data this time are:
> 
> GRO2 0x101060e0 handle_interruption+6c
> IOAQ 0x101120dc handle_unaligned+2c0

yes, seems like it's likely too.

> I am curious, though.  This time when it hung the hearbeat didn't stop.
>  Does this mean that it didn't hang as solid as the other times?

that would be my guess too.

> Are
> interrupts still being handled at some kernel level if the heartbeat LED
> is flashing normally?

yes

> If this is the case, then this means the TOC data
> may be useless this time around, right?

Not necessarily. The TOC data may still be useful
for register state.

grant
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Grant,

	While searching the web I came across your email:
http://lists.parisc-linux.org/pipermail/parisc-linux/2004-January/022125.html

where you said:

Here's "apps/openssl speed rsa" gprof output from my c3000.
(2.6.0-pa7, Debian testing)

TBH, it looks wrong.



It is wrong.  For details please see:

http://bugs.gentoo.org/show_bug.cgi?id=90090

	If you have any more information on the subject I would appreciate it
as a number of us are preparing to take this issue to the LKML.  I'm
specifically looking at a convincing reason to put forth to Linus to
export the correct clock-ticks/second.  Linus has stated in the past
that user space has no need for the information.  A couple of other
kernel devs are going to back me up here but we need a good argument to
get Linus to change his mind.

Thanks,
-- 
Tres

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Hello Dave,

Discussing with Carlos I figure out that insteresting stuff:

I didn't find in p-l the fp init stuff (may be I coud also missed it)
as decribe at page 9-9 and as encountered in hpux-1100 (32 or 64bit)

00000000001302e0 <fprinit>:
   1302e0:       73 c2 3f e1     std rp,-10(sp)
   1302e4:       03 00 08 a2     mfctl tr0,rp
   1302e8:       48 42 00 d0     ldw 68(rp),rp
   1302ec:       c7 02 c0 62     bb,>=,n rp,18,130324 <nofprinit>
   1302f0:       20 32 90 0e     ldil 7a4800,r1
   1302f4:       34 21 0c 70     ldo 638(r1),r1
   1302f8:       2c 20 12 00     fstd fr0,0(,r1)
   1302fc:       30 00 00 00     fid
   130300:       2c 20 12 00     fstd fr0,0(,r1)
   130304:       0c 20 10 81     ldw 0(,r1),r1
   130308:       0f 41 12 80     stw r1,0(,r26)
   13030c:       20 52 90 0e     ldil 7a4800,rp
   130310:       34 42 0b 10     ldo 588(rp),rp
   130314:       2c 40 10 00     fldd 0(,rp),fr0
   130318:       2c 40 10 01     fldd 0(,rp),fpe2
   13031c:       2c 40 10 02     fldd 0(,rp),fpe4
   130320:       2c 40 10 03     fldd 0(,rp),fpe6

0000000000130324 <nofprinit>:
   130324:       53 c2 3f e1     ldd -10(sp),rp
   130328:       e8 40 d0 00     bve (rp)
   13032c:       08 00 02 40     nop
[...]

000000000013038c <get_fpuinfo>:
   13038c:       22 d2 90 0e     ldil 7a4800,r22
   130390:       36 d6 0c 80     ldo 640(r22),r22
   130394:       2e c0 12 00     fstd fr0,0(,r22)
   130398:       30 00 00 00     fid
   13039c:       22 d2 90 0e     ldil 7a4800,r22
   1303a0:       36 d6 0c 80     ldo 640(r22),r22
   1303a4:       2e c0 12 00     fstd fr0,0(,r22)
   1303a8:       22 d2 90 0e     ldil 7a4800,r22
   1303ac:       4a dc 0c 80     ldw 640(r22),ret0
   1303b0:       e8 40 c0 00     bv r0(rp)
   1303b4:       08 00 02 40     nop

called into <processor_init>:
...
   33b60c:       ea fa b2 a1     b,l 12ff64 <set_coproc_config>,%r2
   33b610:       37 dd 3f e1     ldo -10(sp),ret1
   33b614:       48 98 0d c0     ldw 6e0(r4),r24
   33b618:       34 13 01 80     ldi c0,r19
   33b61c:       0b 13 02 1f     and r19,r24,r31
   33b620:       68 9f 0d c0     stw r31,6e0(r4)
   33b624:       2b 60 30 00     addil 1800,dp,%r1
   33b628:       48 21 0c e0     ldw 670(r1),r1
   33b62c:       88 20 22 6a     cmpb,<>,n r0,r1,33b768 <processor_init+0x1c0>
   33b630:       48 82 0d c0     ldw 6e0(r4),rp
   33b634:       d8 59 0b e0     extrd,u rp,63,32,r25
   33b638:       34 1a 00 14     ldi a,r26
   33b63c:       ea fa a1 99     b,l 12f710 <mtctl>,%r2
   33b640:       37 dd 3f e1     ldo -10(sp),ret1
   33b644:       2b 60 30 00     addil 1800,dp,%r1
   33b648:       34 3a 0f a8     ldo 7d4(r1),r26
   33b64c:       ea fa b9 19     b,l 1302e0 <fprinit>,%r2
   33b650:       37 dd 3f e1     ldo -10(sp),ret1
...

and some realted fnct:
000000000012ff2c <get_coproc_config>:
   12ff2c:       03 00 08 b6     mfctl tr0,r22
   12ff30:       4a dc 00 d0     ldw 68(r22),ret0
   12ff34:       d7 9c 08 18     depw,z ret0,31,8,ret0
   12ff38:       e8 40 d0 00     bve (rp)
   12ff3c:       08 00 02 40     nop

000000000012ff40 <set_fpu_type_config>:
   12ff40:       03 00 08 b6     mfctl tr0,r22
   12ff44:       52 d5 00 40     ldd 20(r22),r21
   12ff48:       6a ba 02 20     stw r26,110(r21)
   12ff4c:       6a da 00 d8     stw r26,6c(r22)
   12ff50:       e8 40 d0 00     bve (rp)
   12ff54:       08 00 02 40     nop

000000000012ff58 <getfputypeflags>:
   12ff58:       03 00 08 b6     mfctl tr0,r22
   12ff5c:       e8 40 c0 00     bv r0(rp)
   12ff60:       4a dc 00 d8     ldw 6c(r22),ret0

000000000012ff64 <set_coproc_config>:
   12ff64:       03 00 08 b6     mfctl tr0,r22
   12ff68:       4a d5 00 d0     ldw 68(r22),r21
   12ff6c:       d6 ba 0c 18     depw r26,31,8,r21
   12ff70:       6a d5 00 d0     stw r21,68(r22)
   12ff74:       e8 40 d0 00     bve (rp)
   12ff78:       08 00 02 40     nop

Hth,
	Joel

soete.joel wrote:
>>>Dave would you mean that c3k was runing parisc-linux and a500 hpux?
>>
>>Correct.
>>
> 
> Ok clear.
> 
> 
>>>Is there some pb in sgl -> udw convertion?
>>
>>Could be.  There is a significant different between PA 1.x and 2.0
>>in this respect.  PA 2.0 has "hardware" instructions to do these
>>conversions.  GCC currently uses these instructions when generating
>>PA 2.0 code.
> 
> 
> After severall hours of test, I changed my mind.
> 
> I have my ws runing hpux 11.00 and gcc to compile pr code ;-)
> 
> I have a n4k 2-way pa8600 550Mhz testing parisc-linux 2.6.12-pa2-n4ksmp
> (ggc-4.0 + fpr limits) 
> 
> I can also use a developement n4k 4-way pa8600 440Mhz (not od this clock)
> runing hpux 11.00 (with latest patch bundle).
> 
> First thing on p-l I noticed:
> I get rid of unsigned by:
> long long
> f2ull(float f)
> {
>  return (long long) f;
> }
> 
> And it print well 'f2ull((float) ((~0ULL) >> 1)) = 0x7fffffffffffffff'
> 
> I let you also check the resulting .s file when I play with following:
> unsigned long long
> f2ull(float f)
> {
>   long long tmp = (long long) f;
>   return (unsigned long long) temp;
> }
> 
> Semanticaly it would be the same as the original but the result is also:
> 'f2ull((float) ((~0ULL) >> 1)) = 0x7fffffffffffffff' ?
> 
> Now the brain shacking ;-)
> 
> the behaviour comparison between hpux and p-l (on the original code):
> I used some gui gdb helper (wdb on hpux and insight and ddd on p-l)
> 
>     * at the end of f2ull() ret0 and ret1 (aka r28 & r29) are well different:
>         hpux: r28 == 0x80000000; r29 == 0x00000000,
>         p-l : r28 = r29 == 0x80000000
>     ???? (the code of .s file is quite the same ;-)
> 
>     * very strange is the very difference of fpsr:
>       (e.g. after fldw r3(,ret0),fr22
>             hpux : fpsr == 0x40
> 
>             after next fcnv insn
>             hpux : fpsr == 0x80000000; 
> 
>             p-l  : fpsr stay constantly == 0x0
> 
> So as far as this time the 2 hw are nearly the same, as well as the executable
> txt, the 2 previous test make me better thought that fpu are 'configurable'
> (may be not all model) and are not setup the same way by the different OS. 
> That said, I never read anything about this but i don't see other reasonable
> explanation?
> 
> 
> Joel
> 
> PS:
> obviously gdb relase are very different on the 2 systems, but I hope that such
> 'printf "%x\n", $fpsr' (or what else as reg) could show me actual cpu reg
> value, though.
> 
> 
> 
> -------------------------------------------------------
> NOTE! My email address is changing to ... @scarlet.be
> Please make the necessary changes in your address book. 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 

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Kyle McMartin wrote:
> On Fri, Jul 22, 2005 at 10:04:55PM +0000, Joel Soete wrote:
> 
>>Hth,
>>	Joel
> 
> 
> I'm not sure it's a very good idea posting bits of the HP-UX
> kernel on a publicly archived mailing list. I imagine the disassembly's
> legal status is questionable... 
> 
Yes I hesitate but finaly though that reverse engineering is legal (see the famous samba project ;-) )?

(Second, is there something not documented in parisc2.0.pdf?)

Please correct me if I am wrong (and if possible remove my post)

Thanks,
	Joel
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On Fri, Jul 22, 2005 at 10:04:55PM +0000, Joel Soete wrote:
> Hth,
> 	Joel

I'm not sure it's a very good idea posting bits of the HP-UX
kernel on a publicly archived mailing list. I imagine the disassembly's
legal status is questionable... 

Cheers,
-- 
Kyle McMartin
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I've finished the kernel testing and identified two different "hanging"
types of behavior in later 2.6.x kernels under high NFS traffic load.

The tests were universally carried out by mounting a remote NFS share on
my B132L running Debian 3.1 (stable) and inside the mount performing:
# dd if=/dev/sda of=sda-image bs=512 &

Beginning with 2.6.11-rc1-pa0, the machine will hang, however the
heartbeat does not stop and some functionality remains in the system.
The machine will respond to network ICMP pings.  No other network
services respong (ftp, ssh, etc), and the keyboard is non-responsive
(caps lock light does not work).  Additionally, the machine would not
respond to the power button.  There are no console messages when the
hang occurs, and nothing diagnostic in the logs.

The second behavior began with 2.6.12-rc1-pa1 (pa0 issued a kernel panic
during boot and could not be tested).  Kernels after this would freeze
completely including the heartbeat LED.  Most kernels tested also issued
a kernel panic to the console (the only exceptiong being 2.6.12-pa2
where the machine hang completely but there was no kernel panic).  The
machine would respond to the power button.  I assume that this is a
hardware behavior that kicks in when the heartbeat stops. Data from the
ToC or panic is as follows:

2.6.12-pa2     - hang, no heartbeat, no panic
 ToC: GR02 0x101e3910 nfs_mark_request_dirty + 0x24
      IOAQ 0x1010c1b0 intr_restore + 0x11c

2.6.12-rc3-pa3 - hang, no heartbeat, kernel panic
      GR02 alloc_skb+0x6c/0xf8
      IAOQ alloc_skb+0x9c/0xf8

**2.6.12-rc1-pa1 - hang, no heartbeat, kernel panic
      GR02 cache_grow+0xd4/0x1a8
      IAOQ alloc_slabmgmt+0x30/0x6c

The complete ToC or panic output is available for the above kernels if
needed.

The list of all kernels testes is as follows:

2.6.12-pa2     - hang, no heartbeat, no panic
2.6.12-rc3-pa3 - hang, no heartbeat, kernel panic
2.6.12-rc1-pa1 - hang, no heartbeat, kernel panic       **
2.6.12-rc1-pa0 - not tested - kernel panic during boot
2.6.11-pa4     - hang, heartbeat present, can ping
2.6.11-rc3-pa5 - hang, heartbeat present, can ping
2.6.11-rc1-pa0 - hang, heartbeat present, can ping      **
2.6.10-pa11    - Tests OK
2.6.8.1-pa11   - Tests OK

** First kernel where a hanging behavior was observed.

Tha additional diagnostic (ToC or panic output) for the applicable tests
is available from:
  http://www.excelcia.org/~kfitzner/hang_diagnostics.tar.gz

I have kept all the debian packages for the above kernels so if there is
additional testing that would be helpful, or if I have missed some data,
please let me know.

	Kurt.

--
HP 9000 B132L, 128MB RAM, Seagate ST34371W 4GB hdd on Zalon NCR53c720
(0,0,6), Panasonic CR-8005A cdrom on LASI 53c700 (1,0,3), 3COM 3c905 PCI
ethernet card, Debian Sarge 3.1 Stable
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So many thanks... Every thing up and running except my PS2 mouse

The soln:
http://www.debian.org/releases/stable/debian-installer/index#errata

K



> On 7/22/05, Kyle McMartin <kyle@mcmartin.ca> wrote:
> > On Fri, Jul 22, 2005 at 09:03:40PM +0200, Karthik wrote:
> > > > You need to bump initrd_size.
> >
> > For one, you're asking on the wrong list. Since this is a Debian
> > problem.
> >
> > Second, get to the PALO prompt (answering yes to interact with the IPL,
> > or boot pri ipl) and add initrd_size=3D32768 to the path by choosing a
> > number available and adding that to the line which will create
> > a new entry.
> >
> > --
> > Kyle McMartin
> >
>
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Cc: Tres Melton <tres@mindspring.com>,
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 Matthew Wilcox <matthew@wil.cx>
To: Randolph Chung <randolph@tausq.org>
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On Tue, Jul 26, 2005 at 10:25:44PM +0800, Randolph Chung wrote:
> >User space should not "know" what HZ the kernel is using.  Instead, all
> >interfaces should be properly reported in terms of whatever HZ userspace
> >used to assume (100 on i386, other values on other platforms).  I don't
> >know what interface gprof is using, but it needs to be fixed.
> 
> I thought gprof uses a SIGPROF timer using the setitimer interface. Why 
> is it HZ dependent?

Even though you get a signal you have to calculate the elapsed time.
The profiling codes prefers "times" to "getrusage" to "clock."

Unfortunately to interpret "times" information you need to multiply by
ticks_to_msec.

IMO any interface exporting/using ticks is broken. Accurate time can 
be provided through other interfaces. Userspace should never see ticks,
only converted time.

c.

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Subject: Re: [parisc-linux] [Testers wanted] New glibc with profiling fixed.
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On Tue, Jul 26, 2005 at 01:01:35PM -0400, Carlos O'Donell wrote:
> On Tue, Jul 26, 2005 at 10:25:44PM +0800, Randolph Chung wrote:
> > >User space should not "know" what HZ the kernel is using.  Instead, all
> > >interfaces should be properly reported in terms of whatever HZ userspace
> > >used to assume (100 on i386, other values on other platforms).  I don't
> > >know what interface gprof is using, but it needs to be fixed.
> > 
> > I thought gprof uses a SIGPROF timer using the setitimer interface. Why 
> > is it HZ dependent?
> 
> Even though you get a signal you have to calculate the elapsed time.
> The profiling codes prefers "times" to "getrusage" to "clock."
> 
> Unfortunately to interpret "times" information you need to multiply by
> ticks_to_msec.
> 
> IMO any interface exporting/using ticks is broken. Accurate time can 
> be provided through other interfaces. Userspace should never see ticks,
> only converted time.

userspace should see converted ticks.  ie divide by 10 if CONFIG_HZ is 1000
since PA userspace expects to see 100Hz.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Tue, Jul 26, 2005 at 03:18:37PM +0100, Matthew Wilcox wrote:
> On Tue, Jul 26, 2005 at 07:37:16AM -0600, Tres Melton wrote:
> > I'm advocating a way for user space to *know* what the kernel is
> > running.  It is this thinking crap that is messing things up.
> 
> User space should not "know" what HZ the kernel is using.  Instead, all
> interfaces should be properly reported in terms of whatever HZ userspace
> used to assume (100 on i386, other values on other platforms).  I don't
> know what interface gprof is using, but it needs to be fixed.
> 
> Otherwise we stand no chance of going to a dynamic HZ in the future.

Or better yet a precise time interface with feedback about the accuracy
of the returned time.

For example, while cr16 on parisc is a very precise measurement of insn
execution speed, it varies too much to be used for a stable and accurate
global clock.

c.

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Subject: Re: [parisc-linux] [Testers wanted] New glibc with profiling fixed.
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On Tue, Jul 26, 2005 at 06:09:49PM +0100, Matthew Wilcox wrote:
> > IMO any interface exporting/using ticks is broken. Accurate time can 
> > be provided through other interfaces. Userspace should never see ticks,
> > only converted time.
> 
> userspace should see converted ticks.  ie divide by 10 if CONFIG_HZ is 1000
> since PA userspace expects to see 100Hz.

I meant "ideologicall" broken. Yes, converting ticks to an expected
value preserves userspace compatibility.

gprof may want to stop using times() when a more suitable interface
becomes available.

c.

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parisc,

After another dicsussion about high-precision timers on parisc
and the possible uses of cr16, I decided to write down our ideas
so that they are not lost and rehashed.

http://wiki.parisc-linux.org/Time?action=show

I'm looking for comments. In particular from kernel hackers about
implementing the cr16 offset table. If someone wants a small project
that would be cool to work on. I would make myself responsible to finish
the userspace pieces and then we would have nanosecond timing using
get_cycles (independant library) or clock_gettime (nsec field filled
from cr16).

c.

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Randolph, Dave,

Any thoughts?

../sysdeps/generic/strtol_l.c: In function '____strtol_l_internal':
../sysdeps/generic/strtol_l.c:483: warning: cast discards qualifiers from pointer target type
../sysdeps/generic/strtol_l.c:497: error: 'ERANGE' undeclared (first use in this function)
../sysdeps/generic/strtol_l.c:497: error: (Each undeclared identifier is reported only once
../sysdeps/generic/strtol_l.c:497: error: for each function it appears in.)
../sysdeps/generic/strtol_l.c:517: warning: cast discards qualifiers from pointer target type
../sysdeps/generic/strtol_l.c:520: warning: cast discards qualifiers from pointer target type
make[2]: *** [/mnt/flaire/src/tls-toolchain-hppa/build/glibc-nptl/stdlib/strtol_l.o] Error 1
make[2]: Leaving directory `/mnt/flaire/src/tls-toolchain-hppa/src/glibc/stdlib'
make[1]: *** [stdlib/subdir_lib] Error 2
make[1]: Leaving directory `/mnt/flaire/src/tls-toolchain-hppa/src/glibc'
make: *** [all] Error 2

I tried to debug a weird header file include problem in the nptl headers
last night, but to no avail. It looks like gcc was reordering the includes
and "lll_lock_t" wasn't included. This time around "ERANGE" is missing, but 
if I trace the headers by hand it should have been included.

This looks like an einvironment problem. No other arches seem to define anything
magical to make this work.

I had a similar problem in nptl/descr.h where lowlevellock.h wasn't being
included until after descr.h was entirely processed. Which made no sense
at all.

c.


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> I tried to debug a weird header file include problem in the nptl headers
> last night, but to no avail. It looks like gcc was reordering the includes
> and "lll_lock_t" wasn't included. This time around "ERANGE" is missing, but 
> if I trace the headers by hand it should have been included.

Have you looked at the -E output?  Also, add -dM to see macro defines.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Patch attached; it boots to a login prompt but

a) keyboard is dead
b) serial port is dead

so ssh access only.  I included Joel's patch to gsc.c in the
attachment... no credit to me for that part.

Richard


Main Menu: Enter command > bo lan
Interact with IPL (Y, N, Q)?> n

Booting... 
Network Station Address 0060b0-1861d0
System IP Address 192.168.1.69
Server IP Address 192.168.1.2

Boot IO Dependent Code (IODC) revision 2


HARD Booted.
palo ipl 1.9 root@c3k Wed Jul 20 12:51:49 MDT 2005

Boot image contains:
    0/vmlinux32 5033436 bytes @ 0xa000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'HOME=/ root=/dev/sda5 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux'
Selected kernel: /vmlinux from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 32-bit kernelELF32 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 3443904 mediaptr 0x1000
Segment 1 load 0044c000 size 647302 mediaptr 0x34a000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.13-rc3-pa0 (richard@slab.home) (gcc version 4.0.1 (Debian 4.0.1-2)) #18 Tue Jul 26 22:14:42 UTC 2005
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005040 00000481 00000000 02020202 7742aa81 100000f0 00000004 000000ba 000000ba
vers  00000018
CPUID vers 15 rev 24 (0x000001f8)
capabilities 0x2
model 9000/778/B180L
Total Memory: 256 MB
LED display at f0190001 registered
Built 1 zonelists
Kernel command line: HOME=/ root=/dev/sda5 console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 2048 (order: 11, 32768 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 262144k available
Security Framework v1.0.0 initialized
Capability LSM initialized
Mount-cache hash table entries: 512
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Merlin+ 132 Dino RS-232 at 0xfff83000 [8/0/63] { 10, 0x0, 0x022, 0x0008c }
2. Merlin+ 180 Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x03f, 0x0008c }
3. Merlin+ 180 Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x03f, 0x00082 }
4. Merlin+ 180 Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x03f, 0x00074 },  additional addresses: 0xffd01000 0xffd03000 
5. Merlin+ 180 Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x03f, 0x0007b }
6. Merlin+ 180 Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x03f, 0x00084 }
7. Merlin+ 180 Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x03f, 0x00084 }
8. Bluefish Add-on FW-SCSI at 0xfff88000 [8/8] { 4, 0x1, 0x013, 0x00089 }
9. Merlin+ 180 Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x03f, 0x00081 },  additional addresses: 0xffd0c000 0xffc00000 
10. Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 0x00085 },  additional addresses: 0xf0011000 
11. Phantom PseudoBC GSC+ Port at 0xffc00000 [8] { 7, 0x0, 0x504, 0x00000 }
12. Merlin L2+ 180 (9000/778/B180L) at 0xfffbe000 [62] { 0, 0x0, 0x504, 0x00004 }
13. Memory at 0xfffbf000 [63] { 1, 0x0, 0x05a, 0x00009 }
14. Dino PCI Bridge at 0xfff80000 [0] { 13, 0x2, 0x680, 0x0000a }
15. Merlin+ 132 Dino PS/2 Port at 0xfff81000 [1] { 10, 0x0, 0x022, 0x00096 }
CPU(s): 1 x PA7300LC (PCX-L2) at 180.000000 MHz
Setting cache flush threshold to d00 (1 CPUs online)
Lasi version 0 at 0xffd00000 found.
Dino version 3.0 found at 0xfff80000
The GSCtoPCI (Dino hrev 2) bus converter found may exhibit
data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.
Systems shipped after Aug 20, 1997 will not exhibit this problem.
Models affected: C180, C160, C160L, B160L, and B132L workstations.

SCSI subsystem initialized
unwind_init: start = 0x103cb110, end = 0x103eeea0, entries = 9177
inotify syscall
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
PDC Stable Storage facility v0.09
Soft power switch enabled, polling @ 0xf0140000.
STI GSC/PCI core graphics driver Version 0.9a
    id 2d08c0a7-9a02587, conforms to spec rev. 8.07
    graphics card name: INTERNAL_EG_1024
sticon: Initializing STI text console.
Console: switching to colour STI console 128x48
Console: switching to colour frame buffer device 128x48
fb0: stifb 1024x768-8 frame buffer device, INTERNAL_EG_1024, id: 2d08c0a7, mmio: 0xf8100000
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
Serial: device 0xffd05000 not configured.
Enable support for Wax, Lasi, Asp or Dino.
Serial: device 0xfff83000 not configured.
Enable support for Wax, Lasi, Asp or Dino.
Serial: device 0xffd05000 not configured.
Enable support for Wax, Lasi, Asp or Dino.
IRQ not found for parallel device at 0xffd02000
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
loop: loaded (max 8 devices)
PPP generic driver version 2.4.2
Linux Tulip driver version 1.1.13 (December 15, 2004)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21142/DS21143 Tulip rev 48 at 80000080, 00:60:B0:18:61:D0, IRQ 17.
sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 16
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.1
  Vendor: SEAGATE   Model: ST34371W          Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:6: tagged command queuing enabled, command queue depth 16.
 target0:0:6: Beginning Domain Validation
 target0:0:6: asynchronous.
 target0:0:6: wide asynchronous.
 target0:0:6: Domain Validation skipping write tests
 target0:0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
 target0:0:6: Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
lasi700: request_irq failed!
st: Version 20050501, fixed bufsize 32768, s/g segs 256
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 < sda5 sda6 sda7 >
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 6, lun 0,  type 0
aoe: aoe_init: AoE v2.6-10 initialised.
mice: PS/2 mouse device common for all mice
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :   206.400 MB/sec
   8regs_prefetch:   204.800 MB/sec
   32regs    :   232.800 MB/sec
   32regs_prefetch:   323.200 MB/sec
raid5: using function: 32regs_prefetch (323.200 MB/sec)
raid6: int32x1     66 MB/s
raid6: int32x2     83 MB/s
raid6: int32x4     98 MB/s
raid6: int32x8     72 MB/s
raid6: using algorithm int32x4 (98 MB/s)
md: raid6 personality registered as nr 8
md: md driver 0.90.2 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 3.38
NET: Registered protocol family 2
IP route cache hash table entries: 4096 (order: 2, 16384 bytes)
TCP established hash table entries: 16384 (order: 5, 131072 bytes)
TCP bind hash table entries: 16384 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 16384 bind 16384)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 588k freed
Warning: unable to open an initial console.
Adding 184708k swap on /dev/sda6.  Priority:-1 extents:1
EXT3 FS on sda5, internal journal
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda7, internal journal
EXT3-fs: mounted filesystem with ordered data mode.

--jRHKVT23PllUwdXP
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename=d

Index: arch/parisc/kernel/drivers.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/drivers.c,v
retrieving revision 1.24
diff -u -r1.24 drivers.c
--- arch/parisc/kernel/drivers.c	19 Jul 2005 03:49:49 -0000	1.24
+++ arch/parisc/kernel/drivers.c	26 Jul 2005 22:47:12 -0000
@@ -470,10 +470,11 @@
 	struct match_id_data d = {
 		.id = id,
 	};
-	int ret;
 
-	ret = for_each_padev(match_by_id, &d);
-	return ret ? create_tree_node(id, parent) : NULL;
+	if (device_for_each_child(parent, &d, match_by_id))
+		return d.dev;
+	else
+		return create_tree_node(id, parent);
 }
 
 static struct parisc_device *create_parisc_device(struct hardware_path *modpath)
Index: drivers/parisc/gsc.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/gsc.c,v
retrieving revision 1.21
diff -u -r1.21 gsc.c
--- drivers/parisc/gsc.c	23 Jan 2005 00:09:47 -0000	1.21
+++ drivers/parisc/gsc.c	26 Jul 2005 22:47:21 -0000
@@ -186,9 +186,13 @@
 void gsc_fixup_irqs(struct parisc_device *parent, void *ctrl,
 			void (*choose_irq)(struct parisc_device *, void *))
 {
+	extern struct device * next_device(struct klist_iter * i);
+
 	struct device *dev;
+	struct klist_iter i;
 
-	list_for_each_entry(dev, &parent->dev.children, node) {
+	klist_iter_init(&parent->dev.klist_children, &i);
+	while ((dev = next_device(&i))) {
 		struct parisc_device *padev = to_parisc_device(dev);
 
 		/* work-around for 715/64 and others which have parent 
@@ -197,6 +201,7 @@
 			return gsc_fixup_irqs(padev, ctrl, choose_irq);
 		choose_irq(padev, ctrl);
 	}
+	klist_iter_exit(&i);
 }
 
 int gsc_common_setup(struct parisc_device *parent, struct gsc_asic *gsc_asic)

--jRHKVT23PllUwdXP
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--jRHKVT23PllUwdXP--



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Xref: news.gmane.org gmane.linux.ports.parisc:22977

On Tue, Jul 26, 2005 at 05:10:09PM -0400, John David Anglin wrote:
> > I tried to debug a weird header file include problem in the nptl headers
> > last night, but to no avail. It looks like gcc was reordering the includes
> > and "lll_lock_t" wasn't included. This time around "ERANGE" is missing, but 
> > if I trace the headers by hand it should have been included.
> 
> Have you looked at the -E output?  Also, add -dM to see macro defines.

Ah thanks, I always forget about the -dM to see those cursed macros that
are probably my issue.

The TLS headers are tricky to say the least and more confusing due to
the defines that enable and disable various "Standards."

I'm sure GCC has it's fair share of these problems.

c.

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> On Sat, Jul 23, 2005 at 09:39:34AM +0000, Joel Soete wrote:
> > >I'm not sure it's a very good idea posting bits of the HP-UX
> > >kernel on a publicly archived mailing list. I imagine the disassembl=
y's
> > >legal status is questionable... 
> >
> > Yes I hesitate but finaly though that reverse engineering is legal (s=
ee the 
> > famous samba project ;-) )?
> 
> samba didn't disassemble a copy of the binary.
> They reverse engineered the "on wire" protocol as captured by tcpdump.
> 
(mmm is boomerang <http://boomerang.sourceforge.net/> a more relevant exa=
mple
:-? )
That said, my worry was not much the way reverse engineering was realised=
 then
reverse-engineering by itself: is it or not legal?
 
> Dumping raw dissassembly isn't interesting.
More over ;-)(absolutely agree with you)

Anyway may I come back shortly to the original object of this thread:
"PA 2.0 float conversion to unsigned long long"

I reach to reproduce the pb clearly decribe by jda and with the help of g=
db I
observed not only a difference of results between p-l and hpux-11.00 but =
also
a noticable difference of behaviour in fpsr.

The differences make me ask if "fpu is configurable?"

On irc Carlos put me another question on the fpu mode which make me disco=
ver
in parisc2.0.pdf ("PA-RISC 2.0 Architecture Floating-Point Instruction Se=
t
9-9") a documented way to (at least) indentify pfu.

Btw I discover:
    o this chunk wasn't implemented in p-l but well hpux-11.00 (32 and 64=
bit).

    o hpux (11-.00) has also a label which make thought
      that fpu have actualy to be initialized

    o this thread
<http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/018852=
.html>
      (my grasp of this code is not yet complete sorry: 
            when/where fpregs[] was setup? ...)

Are we missing something?

> If it is legal in your country to analyze the behaviors, I'm
> really only interested in the analysis.
> 
(In a help desk, I read this joke: ... for miracle we ask you a delay of =
24h :-)

Thanks again,
    Joel=0A=0A-------------------------------------------------------=0AN=
OTE! My email address is changing to ... @scarlet.be=0APlease make the ne=
cessary changes in your address book. =0A=0A

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On Fri, Jul 22, 2005 at 06:56:34AM -0600, Tres Melton wrote:
> | Here's "apps/openssl speed rsa" gprof output from my c3000.
> | (2.6.0-pa7, Debian testing)
> |  
> | TBH, it looks wrong.
> 
> It is wrong.  For details please see:
> 
> http://bugs.gentoo.org/show_bug.cgi?id=90090

Ugh. user space vs kernel space HZ battles.

> 	If you have any more information on the subject

Sorry - I really don't.
I'm happy to run more tests on kernel patches if that would help.

>  I would appreciate it
> as a number of us are preparing to take this issue to the LKML.  I'm
> specifically looking at a convincing reason to put forth to Linus to
> export the correct clock-ticks/second.  Linus has stated in the past
> that user space has no need for the information.  A couple of other
> kernel devs are going to back me up here but we need a good argument to
> get Linus to change his mind.

I'm certainly not the one who has a solid grasp of the problem.
I just recognized the output looked wrong.

Another kernel developer has suggested this is a gprof bug.
I was told the kernel has two types of ticks: one for kernel and another
for users space - some conversation needs to take place by gprof
that I know nothing about.

thanks,
grant
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Tres,
please keep this conversation on the parisc-linux mailing list.
I've added them back into the CC list.

On Mon, Jul 25, 2005 at 12:26:28AM -0600, Tres Melton wrote:
> > I'm happy to run more tests on kernel patches if that would help.
> 
> There is a patch to the kernel in the above bug report that makes Linux
> put the right value in the elf header.  That is going to be one of the
> proposed patches.  I've been running a patched kernel for about a week
> with no noticeable side effects.  If you would like you could try that
> and note any breakage in user space.

I can do that in August...thanks for pointing that out.
I read the first parts of the report but don't recall seeing
the kernel patch.

> When you said 'conversation' did you mean 'conversion'?

Yes - thanks for catching that.

> If so, there is no way for gprof to due that
> conversion without knowing what the conversion rate is.  The HZ is now
> set at compile time, as of 2.6.13-rc3, and the conversion rate to
> USER_HZ is not available to user space.

Right. That's why jiffies exported to user space has to be "normalized"
for whatever rate user space *thinks* the kernel is running.

> You spoke of another kernel
> dev, could you ask him if he is opposed to exporting the correct value
> in the elf header (or /proc) and to give a quick justification for his
> response, pro or con.  Thanks.

He's already flown back to germany and it was just incidental that
he was available. I'd rather not pester him about this since it
seems to be a fairly well understood issue...at least to some people.

thanks,
grant
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On Tue, 2005-07-26 at 07:24 -0600, Grant Grundler wrote:
> I can do that in August...thanks for pointing that out.
> I read the first parts of the report but don't recall seeing
> the kernel patch.

http://bugs.gentoo.org/show_bug.cgi?id=90090#c21
It is not a patch file just in the comment.

> Right. That's why jiffies exported to user space has to be "normalized"
> for whatever rate user space *thinks* the kernel is running.

I'm advocating a way for user space to *know* what the kernel is
running.  It is this thinking crap that is messing things up.

> > You spoke of another kernel
> > dev, could you ask him if he is opposed to exporting the correct value
> > in the elf header (or /proc) and to give a quick justification for his
> > response, pro or con.  Thanks.
> 
> He's already flown back to germany and it was just incidental that
> he was available. I'd rather not pester him about this since it
> seems to be a fairly well understood issue...at least to some people.

If you happen to speak to him again I would still like any extra info.
Don't bother him explicitly for this though.  The issue will be taken to
the LKML by the end of the week.

> thanks,
> grant
-- 
Tres

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On Tue, Jul 26, 2005 at 07:37:16AM -0600, Tres Melton wrote:
> I'm advocating a way for user space to *know* what the kernel is
> running.  It is this thinking crap that is messing things up.

User space should not "know" what HZ the kernel is using.  Instead, all
interfaces should be properly reported in terms of whatever HZ userspace
used to assume (100 on i386, other values on other platforms).  I don't
know what interface gprof is using, but it needs to be fixed.

Otherwise we stand no chance of going to a dynamic HZ in the future.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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> User space should not "know" what HZ the kernel is using.  Instead, all
> interfaces should be properly reported in terms of whatever HZ userspace
> used to assume (100 on i386, other values on other platforms).  I don't
> know what interface gprof is using, but it needs to be fixed.

I thought gprof uses a SIGPROF timer using the setitimer interface. Why 
is it HZ dependent?

randolph
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Subject: Re: [parisc-linux] [Testers wanted] New glibc with profiling fixed.
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On Tue, 2005-07-26 at 15:18 +0100, Matthew Wilcox wrote:
> On Tue, Jul 26, 2005 at 07:37:16AM -0600, Tres Melton wrote:
> > I'm advocating a way for user space to *know* what the kernel is
> > running.  It is this thinking crap that is messing things up.
> 
> User space should not "know" what HZ the kernel is using.  Instead, all
> interfaces should be properly reported in terms of whatever HZ userspace
> used to assume (100 on i386, other values on other platforms).  I don't
> know what interface gprof is using, but it needs to be fixed.

I disagree as do others but many agree with you.  The issue will soon be
brought to the LKML so you can discuss it there later this week.  It is
not gprof that is messing up it is gcc/glibc.  When a program is
compiled with the "-pg" options it emits a gmon.out file when run and
that file has bad data that gprof is trusting.

> Otherwise we stand no chance of going to a dynamic HZ in the future.

When you say, dynamic tick are you referring to things like speed step
and power now things or just changing the kernel's internal frequency on
the fly?

-- 
Tres

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On Wed, Jul 27, 2005 at 09:39:51PM +0100, Richard Hirst wrote:
> On Tue, Jul 26, 2005 at 11:52:46PM +0100, Richard Hirst wrote:
> > Patch attached; it boots to a login prompt but
> > 
> > a) keyboard is dead
> > b) serial port is dead
> 
> Those problems are caused by the gsc.c part of the patch, which is

Patch attached, which I think is the correct fix.  There are many
next_device() functions in the tree; we needed one that used
knode_parent, not knode_driver.

Still looks to me like drivers/parisc/sba_iommu.c needs this fix
too, but I've not actually tried it.

Richard


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Index: drivers/parisc/gsc.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/gsc.c,v
retrieving revision 1.22
diff -d -u -r1.22 gsc.c
--- drivers/parisc/gsc.c	27 Jul 2005 00:31:04 -0000	1.22
+++ drivers/parisc/gsc.c	27 Jul 2005 21:18:04 -0000
@@ -183,10 +183,15 @@
 	*irqp = irq;
 }
 
+static struct device* next_device(struct klist_iter *i)
+{
+	struct klist_node * n = klist_next(i);
+	return n ? container_of(n, struct device, knode_parent) : NULL;
+}
+
 void gsc_fixup_irqs(struct parisc_device *parent, void *ctrl,
 			void (*choose_irq)(struct parisc_device *, void *))
 {
-	extern struct device *next_device(struct klist_iter *i);
 	struct device *dev;
 	struct klist_iter i;
 

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On Fri, Jul 29, 2005 at 01:58:52PM +0200, Maxime Woznicki wrote:
> Hello,
> 
> I would like to know if debian hppa port supports these differents 
> servers (I've searched in the supported hardware page but it isn't 
> really clear for me) :
> * HP9000  L2000

yes

> * RP-4440

pa8800 support isn't stable yet.
I have several rp3440-4 boxes setup for developement but we haven't
gotten to the bottom of the sshd segfault (can't ssh into the box).
I believe it's an I-cache flushing issue but haven't had time
to track it further down. Thanks to Randolph/Carlos for getting it that far.
We have determined it's not an I/O coherency issue.

> * RP5430
> * RP5470

Offhand, I'm not sure what these are.
I expect they are later versions of L-class but aren't sure.

> If these servers are supported , can they be used as production servers ?

What does "supported" mean to you?
You have to do your own testing/support on these boxes unless you
want to fund one of the independent developers to do that for you.

FWIW, The most stable recent kernels seem to be 2.6.8.1 (Debian) or
self-built 2.6.10-pa11 (IIRC).

hth,
grant
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From: Thibaut VARENE <T-Bone@parisc-linux.org>
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Subject: [parisc-linux] [PATCH] Support for AD1889 PCI Soundchip
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Hi,

Attached is a patch against 2.6.13-rc4 providing support for Analog
Devices AD1889 PCI Sound chip, which is especially found on some HP
PA-RISC machines.

The driver has been successfully tested on parisc and ppc architectures,
and offers support for full duplex playback (variable rates, mono/stereo
8/16bit) and capture (fixed 48kHz, mono/stereo 8/16bit).

It's developed and maintained in the parisc-linux.org CVS kernel tree
(http://cvs.parisc-linux.org/), and has a status webpage on
http://wiki.parisc-linux.org/AD1889

This patch doesn't yet feature OPL3 code, because it's still work in
progress in our development tree.

Here's the diffstat summary:

 MAINTAINERS        |    9
 sound/pci/Kconfig  |   12
 sound/pci/Makefile |    2
 sound/pci/ad1889.c | 1166
+++++++++++++++++++++++++++++++++++++++++++++++++++++
 sound/pci/ad1889.h |  187 ++++++++
 5 files changed, 1376 insertions(+)

HTH

Thibaut VARENE
The PA/Linux Team
http://www.pateam.org/

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Subject: Re: [parisc-linux] [PATCH] Support for AD1889 PCI Soundchip
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Cc: alsa-devel@lists.sourceforge.net,
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On Fri, 29 Jul 2005 21:16:34 +0200
Thibaut VARENE <T-Bone@parisc-linux.org> wrote:

> Here's the diffstat summary:
>=20
>  MAINTAINERS        |    9
>  sound/pci/Kconfig  |   12
>  sound/pci/Makefile |    2
>  sound/pci/ad1889.c | 1166
> +++++++++++++++++++++++++++++++++++++++++++++++++++++
>  sound/pci/ad1889.h |  187 ++++++++
>  5 files changed, 1376 insertions(+)
>=20

Sorry for replying to myself, forgot the:

Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org>

HTH

Thibaut VARENE
The PA/Linux Team
http://www.pateam.org/

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Hello,

I would like to know if debian hppa port supports these differents 
servers (I've searched in the supported hardware page but it isn't 
really clear for me) :
* HP9000  L2000
* RP-4440
* RP5430
* RP5470

If these servers are supported , can they be used as production servers ?

Thx for help.

Max W.
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On Sun, Jul 31, 2005 at 02:12:54AM -0400, Kyle McMartin wrote:
> On Sun, Jul 31, 2005 at 12:10:56AM +0100, Richard Hirst wrote:
> > PDC Stable Storage facility v0.09
> > Backtrace:
> >  [<10128170>] __wake_up+0x54/0x84
> 
> Try disabling CONFIG_PDC_STABLE_STORAGE until this gets worked out.

Thanks, gets a bit further now:

...
...
16. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0xf, 0x580, 0x0000b }
17. Raven W 360 (9000/780) at 0xfffa0000 [32] { 0, 0x0, 0x5c6, 0x00004 }
18. Memory at 0xfffb1000 [49] { 1, 0x0, 0x097, 0x00009 }
CPU(s): 1 x PA8500 (PCX-W) at 367.111100 MHz
Setting cache flush threshold to 440 (1 CPUs online)
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
Dino version 3.1 found at 0xf2000000
DEV: registering device: ID = 'pci0000:00'
DEV: registering device: ID = '0000:00:13.0'
DEV: registering device: ID = '0000:00:14.0'
Cujo version 2.0 found at 0xf1000000
Enabling Cujo 2.0 bug workaround
DEV: registering device: ID = 'pci0000:01'
DEV: registering device: ID = '0000:01:04.0'
SCSI subsystem initialized
TC classifier action (bugs to netdev@vger.kernel.org cc hadi@cyberus.ca)
unwind_init: start = 0x10422e20, end = 0x10446880, entries = 9126
inotify syscall
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
Soft power switch enabled, polling @ 0xf0140000.
STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f1ff0000 (64 kB), fb at f6000000 (32 MB)
    id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
    graphics card name: PCI_GRAFFITIX1024
sticon: Initializing STI text console.
Console: switching to colour STI console 128x48
Console: switching to colour frame buffer device 128x48
fb0: stifb 1024x768-8 frame buffer device, PCI_GRAFFITIX1024, id: 2d08c0a7, mmio
: 0xf6100000
Generic RTC Driver v1.07
serio: GSC PS/2 keyboard port at 0xffd08000 irq 20 @ 8:16:7


Then it hangs.  TOC shows it is in _spin_lock_irqsave() with a return
address in gscps2_interrupt().

Richard

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Subject: [parisc-linux] Re: [2.6 patch] schedule obsolete OSS drivers for
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Adrian Bunk wrote:
> This patch schedules obsolete OSS drivers (with ALSA drivers that 
> support the same hardware) for removal.
> 
> 
> Signed-off-by: Adrian Bunk <bunk@stusta.de>
> 
> ---
> 
> I've Cc'ed the people listed in MAINTAINERS as being responsible for one 
> or more of these drivers, and I've also Cc'ed the ALSA people.
> 

I am happy for the emu10k1 OSS driver to go.
The ALSA driver has considerably more features now.

James
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On Sun, Jul 31, 2005 at 10:00:05AM +0100, Richard Hirst wrote:
> Then it hangs.  TOC shows it is in _spin_lock_irqsave() with a return
> address in gscps2_interrupt().
> 

Are you compiling with SMP? I seem to recall some spinlock reorganization
patches may have gone in that we have not yet merged...

-- 
Kyle McMartin
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Subject: [parisc-linux] Re: [2.6 patch] schedule obsolete OSS drivers for
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On Tue, Jul 26, 2005 at 12:17:14PM -0400, Andrew Haninger wrote:
> On 7/26/05, Adrian Bunk <bunk@stusta.de> wrote:
> >  config SOUND_OPL3SA2
> >         tristate "Yamaha OPL3-SA2 and SA3 based PnP cards"
> > -       depends on SOUND_OSS
> > +       depends on SOUND_OSS && OBSOLETE_OSS_DRIVER
> >         help
> >           Say Y or M if you have a card based on one of these Yamaha sound
> >           chipsets or the "SAx", which is actually a SA3. Read
> Forgive me if I'm misreading this (I'm hardly a coder and no kernel
> hacker) but, as it stands, the OPL3SA2 driver provided by ALSA and the
> main kernel tree work but are not correctly detected by ALSA's
> detection routines (in alsaconf) on the 2.6 kernel. The OSS drivers
> work, as well, but (AFAIK) there are no methods of automatic
> configuration with the OSS drivers.
> 
> So, for people who don't feel like configuring ALSA with their OPL3SA2
> card, the OSS modules may be easier to configure and thus should be
> left in until the ALSA/2.6 kernel problems are worked out with the
> OPL3SA2.

This is kernel bug #3117 [1] / ALSA bug #879 [2]?

> -Andy

cu
Adrian

[1] http://bugzilla.kernel.org/show_bug.cgi?id=3117
[2] https://bugtrack.alsa-project.org/alsa-bug/view.php?id=879

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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With the following patch I can boot my C360, although there is not
ps/2 (obviously, given the second part of the diff):

Index: arch/parisc/kernel/drivers.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/drivers.c,v
retrieving revision 1.25
diff -u -r1.25 drivers.c
--- arch/parisc/kernel/drivers.c        26 Jul 2005 23:55:47 -0000      1.25
+++ arch/parisc/kernel/drivers.c        31 Jul 2005 19:22:21 -0000
@@ -448,11 +448,9 @@
        struct parisc_device * pdev = to_parisc_device(dev);
        struct match_id_data * d = data;
 
-       if (check_dev(pdev)) {
-               if (pdev->hw_path == d->id) {
-                       d->dev = pdev;
-                       return 1;
-               }
+       if (pdev->hw_path == d->id) {
+               d->dev = pdev;
+               return 1;
        }
        return 0;
 }
Index: drivers/input/serio/gscps2.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/input/serio/gscps2.c,v
retrieving revision 1.16
diff -u -r1.16 gscps2.c
--- drivers/input/serio/gscps2.c        18 Mar 2005 13:16:54 -0000      1.16
+++ drivers/input/serio/gscps2.c        31 Jul 2005 19:22:29 -0000
@@ -334,7 +334,7 @@
        unsigned long hpa = dev->hpa;
        int ret;
 
-       if (!dev->irq)
+       //if (!dev->irq)
                return -ENODEV;
 
        /* Offset for DINO PS/2. Works with LASI even */


I think the drivers.c part is probably reasonable, although it might be
masking some underlying problem with device discovery.  If I enable the
gscps2 driver the system hangs, possibly with an interrupt storm.

I noticed the 2.6.13 kernel is using completely different IRQ allocations
from 2.6.8 (cat /proc/interrupts); is this expected?


2.6.8

           CPU00
 32:       9151      PARISC-CPU  timer
 33:          0      PARISC-CPU  IPI
 34:        512      PARISC-CPU  lasi
 35:       2053      PARISC-CPU  Dino [8/0]
 36:          0      PARISC-CPU  Cujo
 69:         31            Lasi  GSC PS2 keyboard, GSC PS2 mouse
 86:         68            Lasi  lasi700
 90:        413            Lasi  serial
 96:         30      Dino [8/0]  eth0
 99:       2023      Dino [8/0]  sym53c8xx


2.6.13

 16:       2020        GSC-ASIC  serial
 17:         54        GSC-ASIC  lasi700
 22:       2532         GSC-PCI  sym53c8xx
 23:         36         GSC-PCI  eth0
 64:      94680             CPU  timer
 65:          0             CPU  IPI
 66:       2074             CPU  lasi
 67:       2566             CPU  Dino
 68:          0             CPU  Cujo


When I enable gscps2 it is trying to use IRQ 20.

Richard

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On Sun, Jul 31, 2005 at 08:32:29PM +0100, Richard Hirst wrote:
> I noticed the 2.6.13 kernel is using completely different IRQ allocations
> from 2.6.8 (cat /proc/interrupts); is this expected?
> 

Yeah, willy rewrote our interrupt support sometime around 2.6.10.

-- 
Kyle McMartin
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Xref: news.gmane.org gmane.linux.ports.parisc:22996

Trying to boot cvs head on a C360; this is what happens:

do_device_inventory() calls system_map_inventory(), which calls
pdc_system_map_find_mods() which returns devices in the following
order:

system_map_inventory() f2003000, -1 -1 -1 -1 8 0 + 63
system_map_inventory() ffd00000, -1 -1 -1 -1 -1 8 + 16
system_map_inventory() ffd05000, -1 -1 -1 -1 8 16 + 4
system_map_inventory() ffd06000, -1 -1 -1 -1 8 16 + 5
system_map_inventory() ffd02000, -1 -1 -1 -1 8 16 + 0
system_map_inventory() ffd04000, -1 -1 -1 -1 8 16 + 1
system_map_inventory() ffd08000, -1 -1 -1 -1 8 16 + 7
system_map_inventory() ffd08100, -1 -1 -1 -1 8 16 + 8
system_map_inventory() f203f000, -1 -1 -1 -1 -1 8 + 63
system_map_inventory() f103f000, -1 -1 -1 -1 -1 10 + 63
system_map_inventory() f1000000, -1 -1 -1 -1 -1 10 + 0
system_map_inventory() f2000000, -1 -1 -1 -1 -1 8 + 0

so the first device node we try to create is 8/0/63.  That causes
nodes 8 and 8/0 to get created by create_parisc_device() calling
alloc_tree_node() as it walks the path.  Those two nodes are left
with "dev->id.hw_type = HPHW_FAULTY" by create_tree_node().

Next we try to create device node 8/16.  We end up in match_by_id()
to check if a node for '8' exists already.  Because that node is
marked HPHW_FAULTY it gets ignored, and alloc_tree_node() ends up
creating a second node for device '8'.  We then go on to try and
register this second node '8' with sysfs and things start falling
apart because the node already exists.

I tried making match_by_id() treat HPHW_FAULTY nodes as valid
and then the boot gets much further:


Found devices:
1. Raven U/L2 Dino RS-232 at 0xf2003000 [8/0/63] { 10, 0x0, 0x006, 0x0008c }
2. Raven+ w SE FWSCSI Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x056, 0x0008c }
3. Raven+ w SE FWSCSI Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x056, 0x00082 } 
4. Raven+ w SE FWSCSI Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x056, 0x00074 },  additional addresses: 0xffd01000 0xffd03000 
5. Raven+ w SE FWSCSI Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x056, 0x0007b }
6. Raven+ w SE FWSCSI Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x056, 0x00084 }
7. Raven+ w SE FWSCSI Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x056, 0x00084 }
8. Dino PCI Bridge at 0xf2000000 [8/0] { 13, 0x3, 0x680, 0x0000a },  additional addresses: 0xf2800000 
9. Raven+ w SE FWSCSI Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x056, 0x00081 },  additional addresses: 0xffd0c000 0xffc00000 
10. U2-IOA BC GSC+ Port at 0xf203f000 [8/63] { 7, 0x1, 0x501, 0x0000c }
11. Raven U/L2 Dino PS/2 Port at 0xf2001000 [8/1] { 10, 0x0, 0x006, 0x00096 }
12. U2-IOA BC GSC+ Port at 0xf103f000 [10/63] { 7, 0x1, 0x501, 0x0000c }
13. Cujo PCI Bridge at 0xf1000000 [10/0] { 13, 0x1, 0x682, 0x0000a },  additional addresses: 0xf1800000 0xf6000000 
14. Dino RS-232 at 0xf1003000 [10/3] { 10, 0x0, 0x007, 0x0008c }
15. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0xf, 0x580, 0x0000b }
16. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0xf, 0x580, 0x0000b }
17. Raven W 360 (9000/780) at 0xfffa0000 [32] { 0, 0x0, 0x5c6, 0x00004 }
18. Memory at 0xfffb1000 [49] { 1, 0x0, 0x097, 0x00009 }
CPU(s): 1 x PA8500 (PCX-W) at 367.111100 MHz
Setting cache flush threshold to 720 (1 CPUs online)
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
Dino version 3.1 found at 0xf2000000
DEV: registering device: ID = 'pci0000:00'
DEV: registering device: ID = '0000:00:13.0'
DEV: registering device: ID = '0000:00:14.0'
Cujo version 2.0 found at 0xf1000000
Enabling Cujo 2.0 bug workaround
DEV: registering device: ID = 'pci0000:01'
DEV: registering device: ID = '0000:01:04.0'
SCSI subsystem initialized
TC classifier action (bugs to netdev@vger.kernel.org cc hadi@cyberus.ca)
unwind_init: start = 0x10423e20, end = 0x10447940, entries = 9138
inotify syscall
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
PDC Stable Storage facility v0.09
Backtrace:
 [<10128170>] __wake_up+0x54/0x84
 [<1014b3b8>] __queue_work+0x60/0x80
 [<10142484>] run_timer_softirq+0x148/0x240
 [<1013c2dc>] __do_softirq+0x140/0x194
 [<10104958>] __lock_text_end+0x58/0x64
 [<1010e068>] intr_return+0x0/0x24
 [<103d7990>] klist_next+0x8/0x78
 [<102bea2c>] device_for_each_child+0x30/0x8c
 [<101122c0>] descend_children+0x20/0x50
 [<102bea50>] device_for_each_child+0x54/0x8c
 [<101122c0>] descend_children+0x20/0x50
 [<102bea50>] device_for_each_child+0x54/0x8c
 [<101122c0>] descend_children+0x20/0x50
 [<10112310>] for_each_padev+0x20/0x2c
 [<1011292c>] parse_tree_node+0x48/0x64
 [<10112a08>] check_parent+0x64/0x154


Bad Address (null pointer deref?): Code=6 regs=12ab5380 (Addr=081f0242)
Kernel panic - not syncing: Bad Address (null pointer deref?)


The devices are not printed in a logical order (e.g. 8/0/63 is before
8/0) which I think is a change for earlier kernels.

The change I made to match_by_id() was just to disable the call to
check_dev().

Anyone got any thoughts or suggestions on drivers.c or the device
discovery order?

Thanks,
  Richard

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On Sun, Jul 31, 2005 at 03:38:21PM -0400, Kyle McMartin wrote:
> On Sun, Jul 31, 2005 at 08:32:29PM +0100, Richard Hirst wrote:
> > I noticed the 2.6.13 kernel is using completely different IRQ allocations
> > from 2.6.8 (cat /proc/interrupts); is this expected?
> > 
> 
> Yeah, willy rewrote our interrupt support sometime around 2.6.10.

OK; booted 2.6.12-pa2 and and got the same allocations, with ps/2
on irq 20.

Richard

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On Sun, Jul 31, 2005 at 09:01:44PM +0100, Richard Hirst wrote:
> OK; booted 2.6.12-pa2 and and got the same allocations, with ps/2
> on irq 20.
> 

I think the problem is that check_dev isn't properly passing the "next"
device if it's faulty.

http://cvs.parisc-linux.org/linux-2.6/arch/parisc/kernel/drivers.c?rev=1.9&view=markup

For how it used to look.

Cheers,
-- 
Kyle McMartin
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On Sun, Jul 31, 2005 at 09:01:44PM +0100, Richard Hirst wrote:
> OK; booted 2.6.12-pa2 and and got the same allocations, with ps/2
> on irq 20.
> 

Can you try something like this?

#define check_dev(padev) (padev->id.hw_type != HPHW_FAULTY) \
				? padev : next_device(padev)


static struct parisc_device *
next_device(struct parisc_device *padev) {
	struct device *dev;
	struct klist_iter i;
	struct parisc_device *next = NULL;

	if (!padev)
		return NULL;

	klist_iter_init(&padev->dev.klist_children, &i);
	
	dev = next_device(&i);
	if (dev)
		next = to_parisc_device(dev);
	klist_iter_exit(&i);

	return next;
}

-- 
Kyle McMartin
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On Sun, Jul 31, 2005 at 04:23:38PM -0400, Kyle McMartin wrote:
> static struct parisc_device *
> next_device(struct parisc_device *padev) {

...

> 	dev = next_device(&i);

Err, oops. The function should be next_dev, and next_device should be
a la the one in sba_iommu.c and gsc.c.

Oops,
-- 
Kyle McMartin
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On Sun, Jul 31, 2005 at 12:10:56AM +0100, Richard Hirst wrote:
> PDC Stable Storage facility v0.09
> Backtrace:
>  [<10128170>] __wake_up+0x54/0x84

Try disabling CONFIG_PDC_STABLE_STORAGE until this gets worked out.

-- 
Kyle McMartin
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parisc,

I have two small kernel hacker projects.

1. Add cr27 printing to HPMC, this would let someone debug
   multi-threaded problems by examining the thread register.
   It would be even cooler to make this NPTL aware and dump
   the TCB and DTV.

2. Add some option that enables the user to print something
   like /proc/self/maps when a user process dies. This is 
   very usefull for translating a fault address into a quick
   estimate of which library function crashed.

Fame and glory? My gratitude? :)

Cheers,
Carlos.
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> 2. Add some option that enables the user to print something
>    like /proc/self/maps when a user process dies. This is 
>    very usefull for translating a fault address into a quick
>    estimate of which library function crashed.

gdb?

randolph

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On Sun, Jul 31, 2005 at 04:27:09PM -0400, Kyle McMartin wrote:
> On Sun, Jul 31, 2005 at 04:23:38PM -0400, Kyle McMartin wrote:
> > static struct parisc_device *
> > next_device(struct parisc_device *padev) {
> 
> ...
> 
> > 	dev = next_device(&i);
> 
> Err, oops. The function should be next_dev, and next_device should be
> a la the one in sba_iommu.c and gsc.c.

Not tried this yet, but I'm unclear as to which problem you are
trying to fix...

a) "Found devices" display order

b) an alternative to my match_by_id() change that removed a check_dev() call

c) a fix to gscps2.c hanging my C360 (unlikely, I guess)

d) multiple of the above :-)


The old version of drivers.c had a for_each_padev() that did a depth
first walk of the tree reporting parents before children.  The new
code is reporting children before parents which is what causes (a)
above, I think.

check_dev() is used in several places now, all of which just check
for null/non-null return, so I'm not convinced that making it walk
the tree via next_dev() is right; take this for example:

static int print_one_device(struct device * dev, void * data)
{
        struct parisc_device * pdev = to_parisc_device(dev);

        if (check_dev(pdev))
                print_parisc_device(pdev);
        return 0;
}

if check_dev(pdev) might call next_dev() and return some other
pdev, does it make sense to be calling print_parisc_device() on the
original pdev?

I'm happy to poke at this some more anyway,

Richard

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On Mon, Aug 01, 2005 at 05:59:20PM +0800, Randolph Chung wrote:
> > 2. Add some option that enables the user to print something
> >    like /proc/self/maps when a user process dies. This is 
> >    very usefull for translating a fault address into a quick
> >    estimate of which library function crashed.
> 
> gdb?

If I can't reproduce the crash in the debugger? In particular the PA8800
crashes are so weird that I can't get the same thing under the debugger.

Also, when a process dies in gdb 6.x it throws away the process information
and I can't look at the maps anymore. I have to let it die, remember
where it died, start it again and then hope the DSO loading was
deterministic (e.g. No weird use of dlopen).

c.

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The attached patch fixes 'Found devices' order to display parents before
children.  It's still not ideal, as the children are not reported in
numerical order but I don't see a clean way to fix that.

I included the patch to remove the check_dev() call from match_by_id()
too; that still seems like the right thing to do to me.

My C360 now reports:

Found devices:
1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0xf, 0x580, 0x0000b }
2. Dino PCI Bridge at 0xf2000000 [8/0] { 13, 0x3, 0x680, 0x0000a },  additional 
3. Raven U/L2 Dino RS-232 at 0xf2003000 [8/0/63] { 10, 0x0, 0x006, 0x0008c }
4. Raven+ w SE FWSCSI Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x056, 0x00081 }, 
5. Raven+ w SE FWSCSI Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x056, 0x00}
6. Raven+ w SE FWSCSI Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x056, 0x0008}
7. Raven+ w SE FWSCSI Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x056,  
8. Raven+ w SE FWSCSI Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x056, 0x000}
9. Raven+ w SE FWSCSI Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x056, 0}
10. Raven+ w SE FWSCSI Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x056, }
11. U2-IOA BC GSC+ Port at 0xf203f000 [8/63] { 7, 0x1, 0x501, 0x0000c }
12. Raven U/L2 Dino PS/2 Port at 0xf2001000 [8/1] { 10, 0x0, 0x006, 0x00096 }
13. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0xf, 0x580, 0x0000b }
14. U2-IOA BC GSC+ Port at 0xf103f000 [10/63] { 7, 0x1, 0x501, 0x0000c }
15. Cujo PCI Bridge at 0xf1000000 [10/0] { 13, 0x1, 0x682, 0x0000a },  addition 
16. Dino RS-232 at 0xf1003000 [10/3] { 10, 0x0, 0x007, 0x0008c }
17. Raven W 360 (9000/780) at 0xfffa0000 [32] { 0, 0x0, 0x5c6, 0x00004 }
18. Memory at 0xfffb1000 [49] { 1, 0x0, 0x097, 0x00009 }


Richard


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Index: arch/parisc/kernel/drivers.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/drivers.c,v
retrieving revision 1.25
diff -u -r1.25 drivers.c
--- arch/parisc/kernel/drivers.c	26 Jul 2005 23:55:47 -0000	1.25
+++ arch/parisc/kernel/drivers.c	1 Aug 2005 14:45:26 -0000
@@ -59,19 +59,11 @@
 static int descend_children(struct device * dev, void * data)
 {
 	struct recurse_struct * recurse_data = (struct recurse_struct *)data;
-	int ret;
 
-	/*
-	 * First, descend down the tree.
-	 */
-	ret = device_for_each_child(dev, recurse_data, descend_children);
-	if (ret)
-		return ret;
-
-	/*
-	 * Now, iterate over the children and call the function.
-	 */
-	return device_for_each_child(dev, recurse_data->obj, recurse_data->fn);
+	if (recurse_data->fn(dev, recurse_data->obj))
+		return 1;
+	else
+		return device_for_each_child(dev, recurse_data, descend_children);
 }
 
 /**
@@ -80,7 +72,8 @@
  *	@data:	Data to pass to the called function.
  *
  *	This performs a depth-first traversal of the tree, calling the
- *	function passed for each node.
+ *	function passed for each node.  It calls the function for parents
+ *	before children.
  */
 
 static int for_each_padev(int (*fn)(struct device *, void *), void * data)
@@ -89,7 +82,7 @@
 		.obj	= data,
 		.fn	= fn,
 	};
-	return descend_children(&root, &recurse_data);
+	return device_for_each_child(&root, &recurse_data, descend_children);
 }
 
 /**
@@ -448,11 +441,9 @@
 	struct parisc_device * pdev = to_parisc_device(dev);
 	struct match_id_data * d = data;
 
-	if (check_dev(pdev)) {
-		if (pdev->hw_path == d->id) {
-			d->dev = pdev;
-			return 1;
-		}
+	if (pdev->hw_path == d->id) {
+		d->dev = pdev;
+		return 1;
 	}
 	return 0;
 }

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Xref: news.gmane.org gmane.linux.ports.parisc:23007


parisc,

Luckily I found an excellent testcase that crashes the kernel *every*
time, thus enabling me to test a patch from Randolph to see if the
recent stability issues could be fixed.

Kernel 2.6.13-rc3-pa0
gcc version 3.3.6 (Debian 1:3.3.6-7)

64-bit kernel, UP, on an a500 (PA8700) with 1.5GB of RAM.
Running the glibc testsuite with NPTL enabled causes the machine
to consistently HPMC.
---------------------------------------------------------------------
Backtrace:
 [<000000001032d994>] copy_to_user+0x34/0x40
 [<0000000010172284>] sys_timer_create+0x294/0x8c8
 [<0000000010184d04>] compat_sys_timer_create+0x74/0xa8
 [<0000000010107f8c>] syscall_exit+0x0/0x14


Kernel Fault: Code=15 regs=00000000484cc480 (Addr=00000000c064cb48)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  0000000000000000 0000000010677e28 000000001032d994 0000000000000000
r04-07  00000000106dfc00 0000000060e59e80 0000000000000000 00000000c064cb48
r08-11  00000000484cc190 0000000000000001 00000000000e8608 0000000000000000
r12-15  00000000000e8648 00000000000e88e8 00000000000aa000 00000000000eac08
r16-19  00000000000ecc08 00000000000e8648 0000000000000000 0000000000000000
r20-23  00000000484cc000 00000000484cc280 00000000484cc281 00000000c064cb48
r24-27  0000000000000004 00000000484cc280 00000000c064cb48 00000000106dfc00
r28-31  0000000000000000 00000000c064cb48 00000000484cc480 0000000000000004
sr0-3   0000000002014000 0000000000000000 0000000000000000 0000000002014000
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  00000000101f7be4 00000000000000fa 0000000012623c18 0000000000000000
fr08-11  00000000106dfc00 0000000000000002 00000000106dfc00 0000000000000802
fr12-15  000f41fa2f2149c0 0000000000000020 fffffffffffffc18 0000000000000000
fr16-19  000000001019baa0 00000000125c7000 00000000101cb07c 00000000125c7000
fr20-23  00000000125c7000 0000000000000000 0000000000000043 0000000000000228
fr24-27  000fb909ffe5cb9a 3fe0000000000000 412e848000000000 00000000125c7000
fr28-31  0000000000001000 00000000106dfc00 000000001077f240 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001032d678 000000001032d67c
 IIR: 0fb39222    ISR: 0000000000000000  IOR: 00000000c064cb48
 CPU:        0   CR30: 00000000484cc000 CR31: 00000000106a0000
 ORIG_R28: 00000000106dfc00
 IAOQ[0]: pa_memcpy+0x178/0x32c
 IAOQ[1]: pa_memcpy+0x17c/0x32c
 RP(r2): copy_to_user+0x34/0x40
Kernel panic - not syncing: Kernel Fault
---------------------------------------------------------------------

Applying Randolph's patch to remove fpregs and the double word copies
using thos registers can be found at:
http://www.parisc-linux.org/~tausq/fpreg.diff

Same kernel with that patch applied still crash.

This can mean any number of things, but it could mean:

a. There is another path in the kernel code corrupting fp registers.
b. The optimal pa_memcpy is too optimal and exposes other bugs?

I think that 'a.' is the most plausible.
Any thoughts about catching the culprit?

Cheers,
Carlos.

NOTE:
Even with Randolph's patch the following functions use fpregs heavily:
__muldi3 : Heavy fpregs usage
__divdi3 : "
__moddi3 : "
__udivdi3 : "
__umoddi3 : "

The following functions save/restore fpregs:
linux_gateway_entry - Save fpregs
_switch_to - Save fpregs
_switch_to_ret - Restore fpregs
intr_restore - Restore fpregs
L4^B1 - Save fpregs?
L4^B2 - Save fpregs?
syscall_restore - Load fpregs

The following functions have a weird sequence involving fr31R?
schedule
    1010e8c4:   68 d4 00 98     stw r20,4c(r6)
    1010e8c8:   5c df 00 9a     fldw 4c(r6),fr31R
    1010e8cc:   00 13 18 60     mtsm r19
io_schedule
    10110d14:   68 d3 24 88     stw r19,1244(r6)
    10110d18:   5c df 24 8a     fldw 1244(r6),fr31R
    10110d1c:   00 14 18 60     mtsm r20
__down_read
__down_write
sys_ptrace
load_elf_binary
dev_ifname32
sched_setaffinity
get_task_mm
copy_mm
copy_fs_struct
copy_files
unshare_files
copy_process
profile_hit
release_task
daemonize
get_file_struct
...
And many more. This load to fr31R is discarded and never used.


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Subject: Re: [parisc-linux] pa_memcpy kernel crashing testcase == "glibc +nptl
	+testsuite", and some tests.
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Xref: news.gmane.org gmane.linux.ports.parisc:23008

parisc,

Another crash. Remember in the compat case that the source and destination
addresses may have sr's both set to zero since you are copying into a 
temporary kernel structure.

Backtrace:
 [<0000000010325ef4>] copy_to_user+0x34/0x40
 [<00000000101711dc>] sys_timer_create+0x294/0x8c8
 [<00000000101836f4>] compat_sys_timer_create+0x74/0xa8
 [<0000000010107f8c>] syscall_exit+0x0/0x14


Kernel Fault: Code=15 regs=0000000058fa0480 (Addr=00000000bffd6b48)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  0000000000000000 0000000010669a08 0000000010325ef4 0000000000000000
r04-07  00000000106d3ac0 0000000058f76e80 0000000000000000 00000000bffd6b48
r08-11  0000000058fa0190 0000000000000001 00000000000e8608 0000000000000000
r12-15  00000000000e8648 00000000000e88e8 00000000000aa000 00000000000eac08
r16-19  00000000000ecc08 00000000000e8648 0000000000000000 0000000000000000
r20-23  0000000058fa0000 0000000058fa0280 0000000058fa0281 00000000bffd6b48
r24-27  0000000000000004 0000000058fa0280 00000000bffd6b48 00000000106d3ac0
r28-31  0000000000000000 00000000bffd6b48 0000000058fa0480 0000000000000004
sr0-3   0000000000ae3800 0000000000000000 0000000000000000 0000000000ae3800
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000 
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  00000000101f3d2c 00000000107575f8 0000000012603c18 0000000000000000
fr08-11  00000000106d3ac0 0000000000000002 00000000106d3ac0 0000000000000802
fr12-15  0000000010199b48 0000000000000020 00000000101c7cd4 00000000125ae000
fr16-19  00000000125ae000 0000000000000000 00000000106d3ac0 000f41fa2f8c1980
fr20-23  0000000000000020 00000000101c7cd4 0000000065378f74 000dae5bffe932bc
fr24-27  00000000001fec2c 3fe0000000000000 412e848000000000 00000000106d3ac0
fr28-31  000000006f8b3dc8 000000000000000b 0000000000000020 0000000000000043
  
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010325bd8 0000000010325bdc
 IIR: 0fb39222    ISR: 0000000000000000  IOR: 00000000bffd6b48
 CPU:        0   CR30: 0000000058fa0000 CR31: 0000000010694000
 ORIG_R28: 00000000107733e0     
 IAOQ[0]: pa_memcpy+0x118/0x2d0 
 IAOQ[1]: pa_memcpy+0x11c/0x2d0 
 RP(r2): copy_to_user+0x34/0x40 
Kernel panic - not syncing: Kernel Fault
 <0>Rebooting in 180 seconds..  


For the interested parties, here is a disassembly of pa_memcpy:


0000000010325ac0 <pa_memcpy>:
    10325ac0:	0f c2 12 c1 	std rp,-10(,sp)
    10325ac4:	37 de 01 00 	ldo 80(sp),sp
    10325ac8:	73 c8 3f 41 	std r8,-60(sp)
    10325acc:	73 c6 3f 51 	std r6,-58(sp)
    10325ad0:	73 c5 3f 61 	std r5,-50(sp)
    10325ad4:	73 c4 3f 71 	std r4,-48(sp)
    10325ad8:	73 c3 3f 81 	std r3,-40(sp)
    10325adc:	08 18 02 5f 	copy r24,r31
    10325ae0:	08 1a 02 57 	copy r26,r23
    10325ae4:	08 19 02 55 	copy r25,r21
    10325ae8:	08 19 02 56 	copy r25,r22
    10325aec:	ef 1e 81 b0 	cmpib,*>>= f,r24,10325bcc <pa_memcpy+0x10c>
    10325af0:	08 1a 02 5d 	copy r26,ret1
    10325af4:	0b 59 02 b4 	xor r25,r26,r20
    10325af8:	da 93 0b fd 	extrd,u r20,63,3,r19
    10325afc:	ee 60 a2 72 	cmpib,*<>,n 0,r19,10325c3c <pa_memcpy+0x17c>
    10325b00:	db 34 0b fd 	extrd,u r25,63,3,r20
    10325b04:	ee 80 a1 fa 	cmpib,*<>,n 0,r20,10325c08 <pa_memcpy+0x148>
    10325b08:	08 16 02 57 	copy r22,r23
    10325b0c:	34 1a 00 3e 	ldi 1f,r26
    10325b10:	bf 1a 80 d8 	cmpb,*>>= r26,r24,10325b84 <pa_memcpy+0xc4>
    10325b14:	08 1d 02 59 	copy ret1,r25
    10325b18:	0e e8 50 b6 	ldw,ma 4(sr1,r23),r22
    10325b1c:	da d6 0b e0 	extrd,u r22,63,32,r22
    10325b20:	0e e8 50 b5 	ldw,ma 4(sr1,r23),r21
    10325b24:	da b5 0b e0 	extrd,u r21,63,32,r21
    10325b28:	0e e8 50 b4 	ldw,ma 4(sr1,r23),r20
    10325b2c:	da 94 0b e0 	extrd,u r20,63,32,r20
    10325b30:	0e e8 50 b3 	ldw,ma 4(sr1,r23),r19
    10325b34:	da 73 0b e0 	extrd,u r19,63,32,r19
    10325b38:	0f 36 92 a8 	stw,ma r22,4(sr2,r25)
    10325b3c:	0f 35 92 a8 	stw,ma r21,4(sr2,r25)
    10325b40:	0f 34 92 a8 	stw,ma r20,4(sr2,r25)
    10325b44:	0f 33 92 a8 	stw,ma r19,4(sr2,r25)
    10325b48:	0e e8 50 b6 	ldw,ma 4(sr1,r23),r22
    10325b4c:	da d6 0b e0 	extrd,u r22,63,32,r22
    10325b50:	0e e8 50 b5 	ldw,ma 4(sr1,r23),r21
    10325b54:	da b5 0b e0 	extrd,u r21,63,32,r21
    10325b58:	0e e8 50 b4 	ldw,ma 4(sr1,r23),r20
    10325b5c:	da 94 0b e0 	extrd,u r20,63,32,r20
    10325b60:	0e e8 50 b3 	ldw,ma 4(sr1,r23),r19
    10325b64:	da 73 0b e0 	extrd,u r19,63,32,r19
    10325b68:	0f 36 92 a8 	stw,ma r22,4(sr2,r25)
    10325b6c:	0f 35 92 a8 	stw,ma r21,4(sr2,r25)
    10325b70:	0f 34 92 a8 	stw,ma r20,4(sr2,r25)
    10325b74:	0f 33 92 a8 	stw,ma r19,4(sr2,r25)
    10325b78:	37 18 3f c1 	ldo -20(r24),r24
    10325b7c:	9f 1a 9f 2d 	cmpb,*<< r26,r24,10325b18 <pa_memcpy+0x58>
    10325b80:	08 00 02 40 	nop
    10325b84:	ef 1e 80 78 	cmpib,*>>= f,r24,10325bc8 <pa_memcpy+0x108>
    10325b88:	08 17 02 56 	copy r23,r22
    10325b8c:	0e e8 50 b6 	ldw,ma 4(sr1,r23),r22
    10325b90:	da d6 0b e0 	extrd,u r22,63,32,r22
    10325b94:	0e e8 50 b5 	ldw,ma 4(sr1,r23),r21
    10325b98:	da b5 0b e0 	extrd,u r21,63,32,r21
    10325b9c:	0e e8 50 b4 	ldw,ma 4(sr1,r23),r20
    10325ba0:	da 94 0b e0 	extrd,u r20,63,32,r20
    10325ba4:	0e e8 50 b3 	ldw,ma 4(sr1,r23),r19
    10325ba8:	da 73 0b e0 	extrd,u r19,63,32,r19
    10325bac:	0f 36 92 a8 	stw,ma r22,4(sr2,r25)
    10325bb0:	0f 35 92 a8 	stw,ma r21,4(sr2,r25)
    10325bb4:	0f 34 92 a8 	stw,ma r20,4(sr2,r25)
    10325bb8:	0f 33 92 a8 	stw,ma r19,4(sr2,r25)
    10325bbc:	37 18 3f e1 	ldo -10(r24),r24
    10325bc0:	ef 1e 1f 8d 	cmpib,*<< f,r24,10325b8c <pa_memcpy+0xcc>
    10325bc4:	08 17 02 56 	copy r23,r22
    10325bc8:	08 19 02 5d 	copy r25,ret1
    10325bcc:	ef 00 20 28 	cmpib,*= 0,r24,10325be8 <pa_memcpy+0x128>
    10325bd0:	34 1c 00 00 	ldi 0,ret0
    10325bd4:	0e c2 50 33 	ldb,ma 1(sr1,r22),r19
    10325bd8:	0f b3 92 22 	stb,ma r19,1(sr2,ret1)
    10325bdc:	37 18 3f ff 	ldo -1(r24),r24
    10325be0:	ef 00 bf dd 	cmpib,*<> 0,r24,10325bd4 <pa_memcpy+0x114>
    10325be4:	34 1c 00 00 	ldi 0,ret0
    10325be8:	53 c2 3e e1 	ldd -90(sp),rp
    10325bec:	53 c8 3f 41 	ldd -60(sp),r8
    10325bf0:	53 c6 3f 51 	ldd -58(sp),r6
    10325bf4:	53 c5 3f 61 	ldd -50(sp),r5
    10325bf8:	53 c4 3f 71 	ldd -48(sp),r4
    10325bfc:	53 c3 3f 81 	ldd -40(sp),r3
    10325c00:	e8 40 d0 00 	bve (rp)
    10325c04:	37 de 3f 01 	ldo -80(sp),sp
    10325c08:	96 94 00 10 	subi 8,r20,r20
    10325c0c:	0a 80 52 73 	or,*>= r0,r20,r19
    10325c10:	96 73 00 00 	subi 0,r19,r19
    10325c14:	0a 60 04 33 	sub r0,r19,r19
    10325c18:	ef 00 3d d5 	cmpib,*= 0,r24,10325b08 <pa_memcpy+0x48>
    10325c1c:	da 73 00 1f 	extrd,u r19,0,1,r19
    10325c20:	86 60 3d cd 	cmpib,= 0,r19,10325b0c <pa_memcpy+0x4c>
    10325c24:	08 16 02 57 	copy r22,r23
    10325c28:	0e c2 50 33 	ldb,ma 1(sr1,r22),r19
    10325c2c:	37 18 3f ff 	ldo -1(r24),r24
    10325c30:	0f b3 92 22 	stb,ma r19,1(sr2,ret1)
    10325c34:	e8 1f 1f a5 	b,l 10325c0c <pa_memcpy+0x14c>,r0
    10325c38:	36 94 3f ff 	ldo -1(r20),r20
    10325c3c:	da 93 0b fe 	extrd,u r20,63,2,r19
    10325c40:	ee 60 24 80 	cmpib,*= 0,r19,10325e88 <cda_ldw_exc+0xa0>
    10325c44:	db 53 0b fe 	extrd,u r26,63,2,r19
    10325c48:	ee 60 a4 20 	cmpib,*<> 0,r19,10325e60 <cda_ldw_exc+0x78>
    10325c4c:	96 74 00 08 	subi 4,r19,r20
    10325c50:	da b3 0b fe 	extrd,u r21,63,2,r19
    10325c54:	db 05 1b a2 	extrd,u r24,61,62,r5
    10325c58:	f2 73 10 63 	depd,z r19,60,61,r19
    10325c5c:	08 17 02 5c 	copy r23,ret0
    10325c60:	96 73 00 40 	subi 20,r19,r19
    10325c64:	34 04 00 00 	ldi 0,r4
    10325c68:	da 62 0f e0 	extrd,s r19,63,32,rp
    10325c6c:	34 01 00 00 	ldi 0,r1
    10325c70:	d8 b3 0b fe 	extrd,u r5,63,2,r19
    10325c74:	ee 66 00 e0 	cmpib,*<< 3,r19,10325cec <pa_memcpy+0x22c>
    10325c78:	f6 a0 04 1e 	depdi 0,63,2,r21
    10325c7c:	86 66 80 d2 	cmpib,<<,n 3,r19,10325cec <pa_memcpy+0x22c>
    10325c80:	e8 13 40 00 	blr r19,r0
    10325c84:	08 00 02 40 	nop
    10325c88:	e8 00 02 e8 	b,l 10325e04 <cda_ldw_exc+0x1c>,r0
    10325c8c:	08 00 02 40 	nop
    10325c90:	e8 00 03 20 	b,l 10325e28 <cda_ldw_exc+0x40>,r0
    10325c94:	08 00 02 40 	nop
    10325c98:	e8 00 00 10 	b,l 10325ca8 <pa_memcpy+0x1e8>,r0
    10325c9c:	08 00 02 40 	nop
    10325ca0:	e8 00 03 38 	b,l 10325e44 <cda_ldw_exc+0x5c>,r0
    10325ca4:	08 00 02 40 	nop
    10325ca8:	0e a0 50 93 	ldw 0(sr1,r21),r19
    10325cac:	da 66 0b e0 	extrd,u r19,63,32,r6
    10325cb0:	0e a8 50 94 	ldw 4(sr1,r21),r20
    10325cb4:	36 b5 3f f9 	ldo -4(r21),r21
    10325cb8:	da 84 0b e0 	extrd,u r20,63,32,r4
    10325cbc:	34 a5 00 04 	ldo 2(r5),r5
    10325cc0:	36 fc 3f e9 	ldo -c(r23),ret0
    10325cc4:	0e b8 50 94 	ldw c(sr1,r21),r20
    10325cc8:	da 81 0b e0 	extrd,u r20,63,32,r1
    10325ccc:	01 62 18 40 	mtsar rp
    10325cd0:	d0 86 00 13 	shrpw r6,r4,%sar,r19
    10325cd4:	da 73 0b e0 	extrd,u r19,63,32,r19
    10325cd8:	0f 93 92 98 	stw r19,c(sr2,ret0)
    10325cdc:	36 b5 00 20 	ldo 10(r21),r21
    10325ce0:	37 9c 00 20 	ldo 10(ret0),ret0
    10325ce4:	34 a5 3f f9 	ldo -4(r5),r5
    10325ce8:	ec a0 20 92 	cmpib,*=,n 0,r5,10325d38 <pa_memcpy+0x278>
    10325cec:	0e a0 50 94 	ldw 0(sr1,r21),r20
    10325cf0:	da 83 0b e0 	extrd,u r20,63,32,r3
    10325cf4:	01 62 18 40 	mtsar rp
    10325cf8:	d0 24 00 13 	shrpw r4,r1,%sar,r19
    10325cfc:	da 73 0b e0 	extrd,u r19,63,32,r19
    10325d00:	0f 93 92 80 	stw r19,0(sr2,ret0)
    10325d04:	0e a8 50 94 	ldw 4(sr1,r21),r20
    10325d08:	da 86 0b e0 	extrd,u r20,63,32,r6
    10325d0c:	01 62 18 40 	mtsar rp
    10325d10:	d0 61 00 13 	shrpw r1,r3,%sar,r19
    10325d14:	da 73 0b e0 	extrd,u r19,63,32,r19
    10325d18:	0f 93 92 88 	stw r19,4(sr2,ret0)
    10325d1c:	0e b0 50 94 	ldw 8(sr1,r21),r20
    10325d20:	da 84 0b e0 	extrd,u r20,63,32,r4
    10325d24:	01 62 18 40 	mtsar rp
    10325d28:	d0 c3 00 13 	shrpw r3,r6,%sar,r19
    10325d2c:	da 73 0b e0 	extrd,u r19,63,32,r19
    10325d30:	0f 93 92 90 	stw r19,8(sr2,ret0)
    10325d34:	e8 1f 1f 17 	b,l,n 10325cc4 <pa_memcpy+0x204>,r0
    10325d38:	01 62 18 40 	mtsar rp
    10325d3c:	d0 24 00 13 	shrpw r4,r1,%sar,r19
    10325d40:	da 73 0b e0 	extrd,u r19,63,32,r19
    10325d44:	0f 93 92 80 	stw r19,0(sr2,ret0)
    10325d48:	4b d4 3f 21 	ldw -70(sp),r20
    10325d4c:	4b d3 3f 21 	ldw -70(sp),r19
    10325d50:	8a 93 21 22 	cmpb,<>,n r19,r20,10325de8 <cda_ldw_exc>
    10325d54:	4b d4 3f 21 	ldw -70(sp),r20
    10325d58:	4b d3 3f 21 	ldw -70(sp),r19
    10325d5c:	8a 93 20 b8 	cmpb,<> r19,r20,10325dc0 <cda_stw_exc>
    10325d60:	08 18 02 53 	copy r24,r19
    10325d64:	4b d5 3f 21 	ldw -70(sp),r21
    10325d68:	db 18 0b fe 	extrd,u r24,63,2,r24
    10325d6c:	4b d4 3f 21 	ldw -70(sp),r20
    10325d70:	f6 60 04 1e 	depdi 0,63,2,r19
    10325d74:	0a 76 0a 36 	add,l r22,r19,r22
    10325d78:	8a b4 20 50 	cmpb,<> r20,r21,10325da8 <pmc_load_exc>
    10325d7c:	0a 7d 0a 3d 	add,l ret1,r19,ret1
    10325d80:	4b d4 3f 21 	ldw -70(sp),r20
    10325d84:	4b d3 3f 21 	ldw -70(sp),r19
    10325d88:	82 93 3c 7d 	cmpb,= r19,r20,10325bcc <pa_memcpy+0x10c>
    10325d8c:	08 00 02 40 	nop


c.

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On Sun, Jul 31, 2005 at 02:47:22PM -0400, Kyle McMartin wrote:
> On Sun, Jul 31, 2005 at 10:00:05AM +0100, Richard Hirst wrote:
> > Then it hangs.  TOC shows it is in _spin_lock_irqsave() with a return
> > address in gscps2_interrupt().
> > 
> 
> Are you compiling with SMP? I seem to recall some spinlock reorganization
> patches may have gone in that we have not yet merged...

Just for the mail list archive... turning off SMP makes this problem
go away.

Richard

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Subject: [parisc-linux] [RFC] Fix compat_sys_timer_create kernel security
	hole.
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On Mon, Aug 01, 2005 at 12:42:54PM -0400, Carlos O'Donell wrote:
> parisc,
> 
> Another crash. Remember in the compat case that the source and destination
> addresses may have sr's both set to zero since you are copying into a 
> temporary kernel structure.
> 
> Backtrace:
>  [<0000000010325ef4>] copy_to_user+0x34/0x40
>  [<00000000101711dc>] sys_timer_create+0x294/0x8c8
>  [<00000000101836f4>] compat_sys_timer_create+0x74/0xa8
>  [<0000000010107f8c>] syscall_exit+0x0/0x14

Found my own bug. I tested this code but at the time the kernel address
dereference worked and it didn't crash. Oddly enough the timer tests
passed in glibc.

When you run the full testsuite in nptl it catches this bug. The value
of created_timer_id is a userspace address and requires a copy into the
kernel and a copy back out.

Could someone else review this patch for any thing else I might have
forgotten?

---

When using set_fs(KERNEL_DS) all the variables crossing the boundary 
must be kernel addresses. Any user addresses would be treated as
kernel addresses and dereferences would cause an HPMC. This was the 
case here. The value of created_timer_id must be read into the kernel
and later copied back out, the same for timer_event_spec.

2005-08-01  Carlos O'Donell <carlos@systemhalted.org>

	* kernel/compat_signal.c (compat_copy_sigevent_to_user): New.
	* kernel/compat.c (compat_sys_timer_create): Also copy
	created_timer_id into kernel and use that.
	* include/linux/compat_signal.h: Add prototypes.
	
Signed-of-by: Carlos O'Donell <carlos@systemhalted.org>

Index: kernel/compat_signal.c
===================================================================
RCS file: /var/cvs/linux-2.6/kernel/compat_signal.c,v
retrieving revision 1.7
diff -u -p -r1.7 compat_signal.c
--- kernel/compat_signal.c	3 Nov 2004 22:07:38 -0000	1.7
+++ kernel/compat_signal.c	2 Aug 2005 00:05:44 -0000
@@ -242,3 +242,39 @@ int compat_copy_sigevent_from_user(sigev
 }
 #endif
 
+#ifndef HAVE_ARCH_COPY_SIGEVENT_TO_USER
+int compat_copy_sigevent_to_user(compat_sigevent_t __user *to, sigevent_t *from)
+{
+	int err;
+	u32 scratch;
+	
+	/* copy sigval_t sigev_value 
+	 	int_t sival_int		(same)
+	 	uptr_t sival_ptr	(32 vs 64)*/
+	err = __put_user(from->sigev_value.sival_int, 
+	    		 &to->sigev_value.sival_int);
+	scratch = (u32 __force)from->sigev_value.sival_ptr & 0xffffffffUL;
+	err |= __put_user((compat_uptr_t)scratch, &to->sigev_value.sival_ptr);
+	
+	/* copy int_t sigev_signo 	(same)*/
+	err |= __put_user(from->sigev_signo, &to->sigev_signo);
+	
+	/* copy int_t sigev_notify	(same)*/
+	err |= __put_user(from->sigev_notify, &to->sigev_notify);
+
+	/* never copy _sigev_un padding */
+
+	/* copy int_t _tid 		(same),
+	   good_sigevent() uses this value of */
+	err |= __put_user(from->sigev_notify_thread_id, &to->sigev_notify_thread_id);
+	
+	/* XXX: Do not copy these, they aren't used by
+	   anyone. We would need to distinguish the uses of the union.
+	   copy _sigev_thread
+	  	uptr_t _function	(32 vs 64)
+	  	uptr_t _attribute	(32 vs 64)*/
+	
+	return err;
+}
+#endif
+
Index: kernel/compat.c
===================================================================
RCS file: /var/cvs/linux-2.6/kernel/compat.c,v
retrieving revision 1.27
diff -u -p -r1.27 compat.c
--- kernel/compat.c	22 Apr 2005 00:26:08 -0000	1.27
+++ kernel/compat.c	2 Aug 2005 00:05:46 -0000
@@ -663,17 +663,35 @@ long compat_sys_timer_create(clockid_t w
 			     compat_timer_t __user * created_timer_id)
 {
 	sigevent_t kevent;
+	timer_t ktimer;
 	mm_segment_t old_fs = get_fs();
 	long ret;
 
+	/* sigevent_t needs handling for 32-bit to 64-bit compat */
 	if (timer_event_spec != NULL)
 		if (compat_copy_sigevent_from_user(&kevent, timer_event_spec) != 0)
 			return -EFAULT;
+	
+	/* Timer ID is assumed to be a non-struct simple value */
+	if (created_timer_id != NULL)
+		if (__get_user(ktimer, created_timer_id) != 0)
+		  	return -EFAULT;
 
 	set_fs(KERNEL_DS);
-	ret = sys_timer_create(which_clock, timer_event_spec ? (sigevent_t __user *)&kevent : NULL, created_timer_id);
+	ret = sys_timer_create(which_clock, 
+	    			timer_event_spec ? (sigevent_t __user *)&kevent : NULL, 
+	    			created_timer_id ? (timer_t __user *)&ktimer : NULL);
 	set_fs(old_fs);
+	
+	/* Copy back the results to userspace */
+	if (timer_event_spec != NULL)
+	  	if (compat_copy_sigevent_to_user(timer_event_spec, &kevent) != 0)
+			return -EFAULT;
 
+	if (created_timer_id != NULL)
+	  	if (__put_user(ktimer, created_timer_id) != 0)
+		  	return -EFAULT;
+	
 	return ret;
 }
 
Index: include/linux/compat_siginfo.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/linux/compat_siginfo.h,v
retrieving revision 1.7
diff -u -p -r1.7 compat_siginfo.h
--- include/linux/compat_siginfo.h	18 Mar 2005 14:38:12 -0000	1.7
+++ include/linux/compat_siginfo.h	2 Aug 2005 00:05:46 -0000
@@ -175,6 +175,7 @@ extern int compat_copy_siginfo_to_user(c
 extern int compat_copy_siginfo_from_user(struct siginfo *to, compat_siginfo_t __user *from);
 
 extern int compat_copy_sigevent_from_user(struct sigevent *to, compat_sigevent_t __user *from);
+extern int compat_copy_sigevent_to_user(compat_sigevent_t __user *to, struct sigevent *from);
 
 #endif /* CONFIG_COMPAT */
 #endif /* _ASM_GENERIC_COMPAT_SIGINFO_H */


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Subject: Re: [parisc-linux] [RFC] Fix compat_sys_timer_create kernel security
	hole.
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On Mon, Aug 01, 2005 at 08:15:09PM -0400, Carlos O'Donell wrote:
> On Mon, Aug 01, 2005 at 12:42:54PM -0400, Carlos O'Donell wrote:
> > parisc,
> > 
> > Another crash. Remember in the compat case that the source and destination
> > addresses may have sr's both set to zero since you are copying into a 
> > temporary kernel structure.
> > 
> > Backtrace:
> >  [<0000000010325ef4>] copy_to_user+0x34/0x40
> >  [<00000000101711dc>] sys_timer_create+0x294/0x8c8
> >  [<00000000101836f4>] compat_sys_timer_create+0x74/0xa8
> >  [<0000000010107f8c>] syscall_exit+0x0/0x14
> 
> Found my own bug. 

James Bottomley deserves credit here :)

c.

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Subject: [parisc-linux] gdb debugging SIGEV_THREAD threads?
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Randolph,

Might you have a clue as to why gdb can't debug a SIGEV_THREAD?
This test fails with a SIGSEGV in NPTL. The thread is in
__deallocate_stack (DSO address check from fault) 

The bug itself could be a problem with the CLONE_SETTLS flag
implementation.


-----
(gdb) break *0x400294dc
Breakpoint 2 at 0x400294dc: file list.h, line 71.
(gdb) r
The program being debugged has been started already.
Start it from the beginning? (y or n) y^H
Starting program:
/mnt/flaire/src/tls-toolchain-hppa/build/tests/tst-timer/tst-timer 
Breakpoint 2 at 0x400294dc
Breakpoint 2 at 0x400294dc: file list.h, line 71.

Breakpoint 1, main () at tst-timer.c:82
82        setvbuf (stdout, 0, _IOLBF, 0);
(gdb) c
Continuing.

00000000 00000000 00000002 0002119a 00000000 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 

00000000 

00000000 00000000 00000002 0002119a 00000000 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 

00022098 

00000000 00000000 00000002 0002119a 00000000 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 

00022098 
notify_func1

Program terminated with signal SIGTRAP, Trace/breakpoint trap.
The program no longer exists.
(gdb)
-----
do_page_fault() pid=24956 command='tst-timer' type=15 address=0x00000005

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  0000000000000000 0000000000000000 000000004004c154 0000000040049f64
r04-07  0000000040049f64 0000000000000000 00000000410bc500 00000000000000fb
r08-11  ffffffffdeadbeef 00000000007d0f00 00000000000220a8 00000000000000fb
r12-15  0000000000800000 00000000408bd000 0000000000000007 00000000deadbeef
r16-19  00000000000220a8 0000000040411dae 0000000000022098 0000000040049f64
r20-23  0000000000000000 0000000000000001 00000000410bc540 0000000000000000
r24-27  0000000000000001 0000000000000000 000000004004c154 0000000000021184
r28-31  0000000000000000 0000000000000001 00000000410bc340 000000004002949b
sr0-3   00000000008d7800 0000000000000000 0000000000000000 00000000008d7800
sr4-7   00000000008d7800 00000000008d7800 00000000008d7800 00000000008d7800

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  00000000101f3edc 00000000107575f8 0000000012603c18 0000000000000000
fr08-11  00000000106d3ae0 0000000000000002 00000000106d3ae0 0000000000000802
fr12-15  0000000010199cf8 0000000000000020 00000000101c7e84 00000000125ae000
fr16-19  00000000125ae000 0000000000000000 00000000106d3ae0 000f41fa2f9b5bc0
fr20-23  0000000000000020 00000000101c7e84 0000000000000088 00000040cccccccd
fr24-27  0000001b55555555 3fe0000000000000 412e848000000000 00000000106d3ae0
fr28-31  000000006f8ecdc8 000000000000000b 0000000000000020 0000000000000000

IASQ: 00000000008d7800 00000000008d7800 IAOQ: 00000000400294df 00000000400294e3
 IIR: 0ebc1288    ISR: 00000000008d7800  IOR: 0000000000000005
 CPU:        0   CR30: 000000003ec88000 CR31: 0000000010694000
 ORIG_R28: 0000000000000000
 IAOQ[0]: 0x400294df
 IAOQ[1]: 0x400294e3
 RP(r2): 0x4004c154
-----
00006434 <__deallocate_stack>:
    6434:       6b c2 3f d9     stw rp,-14(,sp)
    6438:       34 1c 00 1c     ldi e,ret0
    643c:       37 de 01 00     ldo 80(sp),sp
    6440:       6b dc 3f 19     stw ret0,-74(,sp)
    6444:       2a 60 00 00     addil 0,r19,%r1
    6448:       23 8e cb d5     ldil -21524000,ret0
    644c:       48 22 00 b0     ldw 58(,r1),rp
    6450:       6b c6 3f 31     stw r6,-68(,sp)
    6454:       37 9c 3d df     ldo -111(ret0),ret0
    6458:       08 1a 02 46     copy r26,r6
	Save input struct pthread* to r6

    645c:       6b c4 3f 41     stw r4,-60(,sp)
    6460:       34 1d 00 02     ldi 1,ret1
    6464:       34 04 00 00     ldi 0,r4
    6468:       6b c3 3f 49     stw r3,-5c(,sp)
    646c:       08 01 02 43     copy r1,r3
    6470:       6b c8 3f 21     stw r8,-70(,sp)
    6474:       6b c7 3f 29     stw r7,-6c(,sp)
    6478:       6b c5 3f 39     stw r5,-64(,sp)
    647c:       6b d3 3f c1     stw r19,-20(,sp)
    6480:       6b dc 3f 11     stw ret0,-78(,sp)

Atomic CAS to acquire the stack_cache_lock
-----
    6484:       08 02 02 5a     copy rp,r26
    6488:       08 04 02 59     copy r4,r25
    648c:       08 1d 02 58     copy ret1,r24
    6490:       e4 00 81 60     be,l b0(sr2,r0),%sr0,%r31
    6494:       34 14 00 00     ldi 0,r20
    6498:       86 b6 20 02     cmpib,=,n b,r21,64a0 <__deallocate_stack+0x6c>
    649c:       08 00 02 40     nop
    64a0:       6b dc 3f 11     stw ret0,-78(,sp)
    64a4:       0a a0 04 15     sub r0,r21,r21
    64a8:       6b d5 3f 19     stw r21,-74(,sp)
-----

    64ac:       4b c5 3f 19     ldw -74(,sp),r5
    64b0:       84 bc 22 3a     cmpib,=,n e,r5,65d4 <__deallocate_stack+0x1a0>
    64b4:       4b d4 3f 19     ldw -74(,sp),r20
    64b8:       34 1c 01 f6     ldi fb,ret0
    64bc:       82 9c 22 22     cmpb,=,n ret0,r20,65d4 <__deallocate_stack+0x1a0>
    64c0:       4b dc 3f 11     ldw -78(,sp),ret0
    64c4:       8f 80 22 38     cmpib,<> 0,ret0,65e8 <__deallocate_stack+0x1b4>
    64c8:       08 13 02 44     copy r19,r4
    64cc:       34 d6 00 80     ldo 40(r6),r22
    64d0:       0e c8 10 9c     ldw 4(,r22),ret0
    64d4:       48 d5 00 80     ldw 40(,r6),r21
	Load parameter offset 40 from struct pthread*

    64d8:       40 d4 03 c2     ldb 1e1(,r6),r20
    64dc:       0e bc 12 88     stw ret0,4(,r21)
	Store result into that address
    .....                       *BOOM*
-----
/* Tests for POSIX timer implementation. */
#include <errno.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>

void hexdump(int * data, size_t length);

static void
notify_func1 (union sigval sigval)
{
  puts ("notify_func1");
}

static void
intr_sleep (int sec)
{
  struct timespec ts;

  ts.tv_sec = sec;
  ts.tv_nsec = 0;

  while (nanosleep (&ts, &ts) == -1 && errno == EINTR)
    ;
}

#define ZSIGALRM 14

void
hexdump(int * data, size_t length)
{
  unsigned int i;
  size_t wordlength = length / 4;
  for (i=0; i < wordlength; i++)
    {
      if ((i % 8) == 0)
        printf("\n");
      printf("%08x ", data[i]);
    }
  printf("\n");
}

int
main (void)
{
  timer_t timer_thr1;
  struct sigevent sigev2;
  struct itimerspec itimer2 = { { 0, 100000000 }, { 0, 500000000 } };
  struct itimerspec old;

  memset(&timer_thr1, '\0', sizeof(timer_thr1));  
  memset(&sigev2, '\0', sizeof(sigev2));  
  
  sigev2.sigev_notify = SIGEV_THREAD;
  sigev2.sigev_notify_function = notify_func1;
  sigev2.sigev_notify_attributes = NULL;
  /* It is unnecessary to do the following but to set a good example
     we do it anyhow.  */
  sigev2.sigev_value.sival_ptr = NULL;

  setvbuf (stdout, 0, _IOLBF, 0);

  hexdump((int *)&sigev2, sizeof(sigev2));
  hexdump((int *)&timer_thr1, sizeof(timer_thr1));

  if (timer_create (CLOCK_REALTIME, &sigev2, &timer_thr1) != 0)
    {
      printf ("timer_create for timer_thr1 failed: %m\n");
      exit (1);
    }
  
  hexdump((int *)&sigev2, sizeof(sigev2));
  hexdump((int *)&timer_thr1, sizeof(timer_thr1));
  
  if (timer_settime (timer_thr1, 0, &itimer2, &old) != 0)
    {
      printf ("timer_settime for timer_thr1 failed: %m\n");
      exit (1);
    }
  
  hexdump((int *)&sigev2, sizeof(sigev2));
  hexdump((int *)&timer_thr1, sizeof(timer_thr1));
  intr_sleep (6);
  
  if (timer_delete (timer_thr1) != 0)
    {
      printf ("timer_delete for timer_thr1 failed: %m\n");
      exit (1);
    }
  return 0;
}
-----

c.

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Subject: [parisc-linux] NPTL pthread_cancel and libgcc_s.so.2 vs.
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Dave,

When I attempt to test syscall cancellation with NPTL threads the
interface complains that:

libgcc_s.so.1 must be installed for pthread_cancel to work

I don't have this installed, instead I have libgcc_s.so.2 installed by
gcc 4.x during the tls toolchain compile/install.

The code in question is nptl/sysdeps/pthread/unwind-resume.c, which does this:

---
static void
init (void)
{
  void *resume, *personality;
  void *handle;

  handle = __libc_dlopen ("libgcc_s.so.1");

  if (handle == NULL 
      || (resume = __libc_dlsym (handle, "_Unwind_Resume")) == NULL 
      || (personality = __libc_dlsym (handle, "__gcc_personality_v0")) == NULL)
    __libc_fatal ("libgcc_s.so.1 must be installed for pthread_cancel to work\n");

  libgcc_s_resume = resume; 
  libgcc_s_personality = personality;
}
---
or
---
void
pthread_cancel_init (void)
{
  void *resume, *personality, *forcedunwind, *getcfa;
  void *handle;

  if (__builtin_expect (libgcc_s_getcfa != NULL, 1))
    return; 

  handle = __libc_dlopen ("libgcc_s.so.1");

  if (handle == NULL 
      || (resume = __libc_dlsym (handle, "_Unwind_Resume")) == NULL 
      || (personality = __libc_dlsym (handle, "__gcc_personality_v0")) == NULL 
      || (forcedunwind = __libc_dlsym (handle, "_Unwind_ForcedUnwind"))
         == NULL 
      || (getcfa = __libc_dlsym (handle, "_Unwind_GetCFA")) == NULL 
#ifdef ARCH_CANCEL_INIT
      || ARCH_CANCEL_INIT (handle)
#endif
      )
    __libc_fatal ("libgcc_s.so.1 must be installed for pthread_cancel to work\n");

  libgcc_s_resume = resume; 
  libgcc_s_personality = personality;
  libgcc_s_forcedunwind = forcedunwind;
  libgcc_s_getcfa = getcfa; 
}
---

It wants to "forward" the local calls for _Unwind_Resume, __gcc_personality_v0,
_Unwind_ForcedUnwind and _Unwind_GetCFA to those in ligcc_s.so.1.

The call sequence is like this:

(Enter cancellable syscall)
...
__libc_enable_asynccancel
  __do_cancel
    __pthread_unwind
      (Calls _Unwind_GetCFA ...)
...
(Do the syscall)
...
__libc_disable_asynccancel
...
(Done)

This is called to enable unwinding out of a cancelled syscall.
What was the reason for DSO version bump in libgcc_s.so.1?

c.


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Subject: [parisc-linux] Re: NPTL pthread_cancel and libgcc_s.so.2 vs.
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> What was the reason for DSO version bump in libgcc_s.so.1?

It was done to distinguish between libgcc_s's built with sjlj and dwarf2
eh support, respectively.  They use incompatible unwind routines and it's
not possible to support both exception handling techniques with one library.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] Re: gdb debugging SIGEV_THREAD threads?
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> Might you have a clue as to why gdb can't debug a SIGEV_THREAD?
> This test fails with a SIGSEGV in NPTL. The thread is in
> __deallocate_stack (DSO address check from fault) 

Not a clue, but I can look into it.

randolph
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Subject: [parisc-linux] Re: gdb debugging SIGEV_THREAD threads?
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On Tue, Aug 02, 2005 at 10:44:55PM +0800, Randolph Chung wrote:
> >Might you have a clue as to why gdb can't debug a SIGEV_THREAD?
> >This test fails with a SIGSEGV in NPTL. The thread is in
> >__deallocate_stack (DSO address check from fault) 
> 
> Not a clue, but I can look into it.

It looks like the breakpoint is placed in the correct location, but gdb
doesn't acknowledge the trap.

It may be difficult to replicate this without my NPTL patches. I'll
check this in so you can build the toolchain too.

c.

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Subject: [parisc-linux] Re: NPTL pthread_cancel and libgcc_s.so.2 vs.
	libgcc_s.so.1 (Why the DSO version bump?)
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On Tue, Aug 02, 2005 at 10:13:42AM -0400, John David Anglin wrote:
> > What was the reason for DSO version bump in libgcc_s.so.1?
> 
> It was done to distinguish between libgcc_s's built with sjlj and dwarf2
> eh support, respectively.  They use incompatible unwind routines and it's
> not possible to support both exception handling techniques with one library.

So libgcc_s.so.1 is for dwarf2?
While libgcc_s.so.2 is for sjlj?

Thus NPTL thread cancellation seems to requires dwarf2 eh support.
How do I enable sjlj versus dwarf2 (--enable-dwarf2-exceptions?)

Our build script is here if you want to have a look:
http://cvs.parisc-linux.org/build-tools/build-tls-tools?rev=1.5&view=markup

c.

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Subject: [parisc-linux] [Announce] NPTL for hppa (a.k.a. How to become a
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parisc,

===== NPTL on hppa-linux (alpha release) =====

We have recently checked in all the glibc NPTL pieces required to get
threading working for hppa. This has been a lot of fun.  Randolph Chung
and John David Anglin deserve a lot of credit.  The entire toolchain
required TLS support and more bug fixes that I can count.

The rest of the pa team deserves credit too, especially for the tactical
use of cluebats (willy, jejb) for all the bad kernel code I wrote.
Without granta-claus nothing is possible, and somewhere in France we've
lost a good hacker ... he's probably playing on his PSP.

This initial NPTL port is made possible by using scalar lock words and
the light-weight-syscall mechanism for "compare and swap." It is not
implemented using LDCW. The sheer amount of code that has to be audited
and changed, including core algorithms is too much work for me
currently. Even the spinlocks are using LWS CAS.

This is a first cut and it needs more debugging to get the regressions
down.

===== NPTL Build Recipe =====

You might be wondering, how can I help? The first step is to follow the
22 step recipe to build your own TLS enabled NPTL threaded toolchain.
Following that you can post a link to your logs that resulted from the
compilation.

Minimum Requirements:
----------------------
You need a machine running the latest kernel from cvs.parisc-linux.org.
You need ~2.5GB of free drive space.
Make sure you don't have a ~/.tls-tools that overrides your options.
Please post a link to your tar.gz'd logs so we can see the tests results.
Please post how long it took to complete? :) 

---
#!/bin/bash
date
mkdir tls-toolchain-hppa
cd tls-toolchain-hppa
mkdir src
mkdir build
mkdir install
export CVSROOT=:pserver:anonymous@cvs.parisc-linux.org:/var/cvs
export BASE=`pwd`
export SRC=$BASE/src
export BUILD=$BASE/build
export PINSTALL=$BASE/install
cd $SRC
ln -s glibc glibc-nptl
cvs co build-tools
cd $BASE
cp $SRC/build-tools/build-tls-tools .
TOOLS="binutils gcc" STAGES="checkout configure build check install" ./build-tls-tools
TOOLS="glibc" STAGES="checkout configure build check" ./build-tls-tools
TOOLS="glibc-nptl" STAGES="configure build check" ./build-tls-tools
cd $BUILD
# Post a link to your logs on the parisc-linux mailing list.
tar zcvf logs-YOURNAME-YY-MM-DD.tar.gz logs/
date
---

===== NPTL Debugging Help =====

If you think you're a multi-threaded programming hot-shot then perhaps
you can help debug our NPTL threading implementation! You'll see the
internals of NPTL and learn how an enterprise ready threading library is
built!

You can start by examining the errors in glibc-nptl.check* and try to
figure out why the test is failing, what is the correct behaviour, and
what might be the fix. Correctness is usually measured against POSIX or
SuSv.

Error listing:  
(cd $BUILD; grep 'Error' glibc-nptl.check*;)

The best debugging technique IMO is to relink the test in a local
directory and use 'rpath' instead of 'rpath-link'. The test can then be
run directly, instead of through ld.so.1, and gdb can be used.

===== NPTL TODO =====

* Reduce NPTL glibc testsuite bug count to below 20. (Critical)
* Fixing or identifying problem areas for NPTL glibc testsuite bugs
* Develop and run LWS CAS test on SMP systems to measure scalability
  and correctness.
- Identify what is required for backwards compat with linuxthreads
- Enabling debian-glibc NPTL builds and testing.
- Distro plan for transition to NPTL threading (Gentoo, Debian,
  Ubuntu... whoe else?).
- What unwind support is required to have a working syscall cancellation
  mechanism.
- Merge code upstream for binutils and glibc.
- Merge upstream back into our CVS.
- Become a sexy hacker.

Cheers,
Carlos.
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Subject: [parisc-linux] Re: NPTL pthread_cancel and libgcc_s.so.2 vs.
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> i386 only has libgcc_s.so.1 and I'm pretty sure that it is compiled with
> dwarf2 support. hppa only has libgcc_s.so.1 and it is sjlj for sure.
> 
> So we have an inconsistent numbering problem?

Yup, but it was unavoidable.  Look on the positive side, i386 doesn't
support sjlj ;)

> The code on hppa should try to load "libgcc_s.so.2" then?

Yes.

> > > Thus NPTL thread cancellation seems to requires dwarf2 eh support.
> > > How do I enable sjlj versus dwarf2 (--enable-dwarf2-exceptions?)
> > 
> > dwarf2 is the default.  --enable-sjlj-exceptions=yes enables sjlj.
> > Debian gcc-3.3 uses sjlj.  Debian gcc-3.4 and later use dwarf2.
> 
> Okay, perfect.

Basic TLS support in GCC is currently in the CVS head and will be
part of gcc-4.1 when it is released.  As long as you don't configure
it with --enable-sjlj-exceptions=yes you will get "libgcc_s.so.2".

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue August 2 2005 23:23, Carlos O'Donell wrote:
> 
> parisc,
>
> Without granta-claus nothing is possible, and somewhere in France we've
> lost a good hacker ... he's probably playing on his PSP.
> 
He will be back.
Rumor is wife took away keyboard for two weeks.

Mike
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Subject: [parisc-linux] Re: NPTL pthread_cancel and libgcc_s.so.2 vs.
	libgcc_s.so.1 (Why the DSO version bump?)
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On Wed, Aug 03, 2005 at 01:02:40AM -0400, John David Anglin wrote:
> > i386 only has libgcc_s.so.1 and I'm pretty sure that it is compiled with
> > dwarf2 support. hppa only has libgcc_s.so.1 and it is sjlj for sure.
> > 
> > So we have an inconsistent numbering problem?
> 
> Yup, but it was unavoidable.  Look on the positive side, i386 doesn't
> support sjlj ;)

Haha! :)
 
> > The code on hppa should try to load "libgcc_s.so.2" then?
> 
> Yes.

Perfect. I added some macros to glibc and this worked. It loaded
libgcc_s.so.2 perfectly and the cancellation seems to work. If only I
could fix the other segfault bugs.

> > > > Thus NPTL thread cancellation seems to requires dwarf2 eh support.
> > > > How do I enable sjlj versus dwarf2 (--enable-dwarf2-exceptions?)
> > > 
> > > dwarf2 is the default.  --enable-sjlj-exceptions=yes enables sjlj.
> > > Debian gcc-3.3 uses sjlj.  Debian gcc-3.4 and later use dwarf2.
> > 
> > Okay, perfect.
> 
> Basic TLS support in GCC is currently in the CVS head and will be
> part of gcc-4.1 when it is released.  As long as you don't configure
> it with --enable-sjlj-exceptions=yes you will get "libgcc_s.so.2".

Yes, this is what I was seeing. For the TLS toolchain we are using
dwarf2.

Thanks for the help.

c.

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Subject: [parisc-linux] [BUG] PDC stable storage broken on 2.6.13-rc3-pa1
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FYI only

PDC stable storage driver panics/hpmc's most/all parisc boxen
with the current 2.6.13-rc3-pa1 kernels.

Here is the backtrace and console output for c3000.
I won't be able to chase this today.
Maybe this weekend if no one else gets to it first.

grant


Command line for kernel: 'HOME=/ TERM=linux root=/dev/sda3 console=ttyS0 palo_k'
Selected kernel: /vmlinux-2.6.13-rc3-pa1-UP from partition 1                    
ELF32 executable                                                                
Entry 00100080 first 00100000 n 2                                               
Segment 0 load 00100000 size 4279552 mediaptr 0x1000                            
Segment 1 load 00518000 size 282757 mediaptr 0x416000                           
Branching to kernel entry point 0x00100080.  If this is the last                
message you see, you may need to switch your console.  This is                  
a common symptom -- search the FAQ and mailing list at parisc-linux.org         
                                                                                
Linux version 2.6.13-rc3-pa1-UP (grundler@svenc3k) (gcc version 3.3.5 (Debian 15
FP[0] enabled: Rev 1 Model 16                                                   
The 32-bit Kernel has started...                                                
Initialized PDC Console for debugging.                                          
Determining PDC firmware type: System Map.                                      
model 00005cf0 00000481 00000000 00000002 778510a0 100000f0 00000008 000000b2 02
vers  00000301                                                                  
CPUID vers 17 rev 11 (0x0000022b)                                               
capabilities 0x3                                                                
model 9000/785/C3600                                                            
Total Memory: 2048 MB                                                           
LCD display at f05d0008,f05d0000 registered                                     
Built 1 zonelists                                                               
Kernel command line: HOME=/ TERM=linux root=/dev/sda3 console=ttyS0 palo_kernelP
PID hash table entries: 4096 (order: 12, 65536 bytes)                           
Console: colour dummy device 160x64                                             
Dentry cache hash table entries: 524288 (order: 9, 2097152 bytes)               
Inode-cache hash table entries: 262144 (order: 8, 1048576 bytes)                
Memory: 2097152k available                                                      
Mount-cache hash table entries: 512                                             
NET: Registered protocol family 16                                              
Searching for devices...                                                        
Found devices:                                                                  
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }          
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }            
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }            
4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }            
5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }            
6. Allegro W+ at 0xfffa0000 [32] { 0, 0x0, 0x5cf, 0x00004 }                     
7. Memory at 0xfed10200 [49] { 1, 0x0, 0x09c, 0x00009 }                         
CPU(s): 1 x PA8600 (PCX-W+) at 552.000000 MHz                                   
Setting cache flush threshold to 300 (1 CPUs online)                            
SBA found Astro 2.1 at 0xfed00000                                               
LBA version TR4.0 (0x5) found at 0xfed30000                                     
PCI: Enabled native mode for NS87415 (pif=0x8f)                                 
LBA version TR4.0 (0x5) found at 0xfed32000                                     
LBA version TR4.0 (0x5) found at 0xfed38000                                     
LBA version TR4.0 (0x5) found at 0xfed3c000                                     
iosapic: hpa not registered for 0000:03:02.0                                    
SCSI subsystem initialized                                                      
unwind_init: start = 0x10442e40, end = 0x10473230, entries = 12351              
inotify syscall                                                                 
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).                        
SGI XFS with no debug enabled                                                   
Initializing Cryptographic API                                                  
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 19)               
SuperIO: Serial port 1 at 0x3f8                                                 
SuperIO: Serial port 2 at 0x2f8                                                 
SuperIO: Parallel port at 0x378                                                 
SuperIO: Floppy controller at 0x3f0                                             
SuperIO: ACPI at 0x7e0                                                          
SuperIO: USB regulator enabled                                                  
PDC Stable Storage facility v0.09                                               
                                                                                
                                                                                
Backtrace:                                                                      
 [<102af43c>] next_device+0x10/0x2c                                             
 [<102e27f8>] device_for_each_child+0x30/0x78                                   
 [<102e2814>] device_for_each_child+0x4c/0x78                                   
 [<102e2814>] device_for_each_child+0x4c/0x78                                   
 [<1010fb00>] for_each_padev+0x28/0x34                                          
 [<10110694>] parse_tree_node+0x34/0x44                                         
 [<10110624>] check_parent+0x68/0xa4                                            
 [<1010fa9c>] descend_children+0x24/0x60                                        
 [<102e2814>] device_for_each_child+0x4c/0x78                                   
 [<102e2814>] device_for_each_child+0x4c/0x78                                   
 [<102e2814>] device_for_each_child+0x4c/0x78                                   
 [<1010fb00>] for_each_padev+0x28/0x34                                          
 [<10110694>] parse_tree_node+0x34/0x44                                         
 [<10110624>] check_parent+0x68/0xa4                                            
 [<1010fa9c>] descend_children+0x24/0x60                                        
 [<102e2814>] device_for_each_child+0x4c/0x78                                   
                                                                                
                                                                                
High Priority Machine Check (HPMC): Code=1 regs=1047e080 (Addr=00000000)        
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00000000000000001111111100000000 Not tainted                               
r00-03  00000000 0f000000 102af43c 00000000                                     
r04-07  1010fa78 8ffffe08 104ce058 10414000                                     
r08-11  0000000f 80000000 1056c3c8 1048bb48                                     
r12-15  3b9aca00 1056c010 1048d010 f0400004                                     
r16-19  00000000 f000017c f0000174 103ff000                                     
r20-23  0000000d 0000168c 101105bc 00000020                                     
r24-27  00000000 00000000 8fffff48 10474010                                     
r28-31  00000001 104cdee8 90000000 1010fa9c                                     
sr0-3   00000000 00000000 00000000 00000000                                     
sr4-7   00000000 00000000 00000000 00000000                                     
                                                                                
      VZOUICununcqcqcqcqcqcrmunTDVZOUI                                          
FPSR: 00000000000000000000000000011111                                          
FPER1: 00000000                                                                 
fr00-03  0000000000000000 0000001f00000000 0000001f00000000 0000001f00000000    
fr04-07  0000000000000000 5555555555555555 5555555555555555 5555555555555555    
fr08-11  5555555555555555 5555555555555555 5555555555555555 5555555555555555    
fr12-15  5555555555555555 5555555555555555 5555555555555555 5555555555555555    
fr16-19  5555555555555555 5555555555555555 5555555555555555 5555555555555555    
fr20-23  5555555555555555 5555555555555555 5555555555555555 5555555555555555    
fr24-27  5555555555555555 5555555555555555 5555555555555555 5555555555555555    
fr28-31  5555555555555555 5555555555555555 5555555555555555 5555555555555555    
                                                                                
IASQ: 00000000 00000000 IAOQ: 103f382c 103f3830                                 
 IIR: 6fc50080    ISR: 00000000  IOR: 90000000                                  
 CPU:        0   CR30: 8fc20000 CR31: 1051c000                                  
 ORIG_R28: 00000000                                                             
 IAOQ[0]: klist_next+0x4/0x74                                                   
 IAOQ[1]: klist_next+0x8/0x74                                                   
 RP(r2): next_device+0x10/0x2c                                                  
Kernel panic - not syncing: High Priority Machine Check (HPMC)                  
 
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Turns out this is down to bugs in drivers/input/serio/gscps2.c.
Looking at gscps2_probe(), there are two locks involved; one in
struct gscps2port and one in struct serio.  The probe function
initialises the one in struct gscps2port and then calls gscps2_reset()
which enables the device such that it can start generating interrupts,
then adds the port to the list of ports the int handler looks at,
then calls serio_register_port() which initialises the lock in
struct serio.  gscps2_interrupt() calls serio_interrupt(), so
if an interrupt is raised before serio_register_port() is called,
the code will hang trying to claim the serio lock which has not yet
been initialised.  Another issue is that gscps2_reset() resets the
device _and_ enables the port.  I think enabling the port should
only happen once something calls open().

The attached patch addresses these issues.  Before applying the
patch I could provoke the hang easily after adding an mdelay() to
the middle of the probe function and then banging on the keyboard
and mouse during boot.

Richard



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Index: drivers/input/serio/gscps2.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/input/serio/gscps2.c,v
retrieving revision 1.16
diff -u -r1.16 gscps2.c
--- drivers/input/serio/gscps2.c	18 Mar 2005 13:16:54 -0000	1.16
+++ drivers/input/serio/gscps2.c	3 Aug 2005 19:22:35 -0000
@@ -211,9 +211,6 @@
 	writeb(0xff, addr+GSC_RESET);
 	gscps2_flush(ps2port);
 	spin_unlock_irqrestore(&ps2port->lock, flags);
-
-	/* enable it */
-	gscps2_enable(ps2port, ENABLE);
 }
 
 static LIST_HEAD(ps2port_list);
@@ -307,6 +304,9 @@
 
 	gscps2_reset(ps2port);
 
+	/* enable it */
+	gscps2_enable(ps2port, ENABLE);
+
 	gscps2_interrupt(0, NULL, NULL);
 
 	return 0;
@@ -370,8 +370,6 @@
 	serio->port_data	= ps2port;
 	serio->dev.parent	= &dev->dev;
 
-	list_add_tail(&ps2port->node, &ps2port_list);
-
 	ret = -EBUSY;
 	if (request_irq(dev->irq, gscps2_interrupt, SA_SHIRQ, ps2port->port->name, ps2port))
 		goto fail_miserably;
@@ -396,13 +394,14 @@
 
 	serio_register_port(ps2port->port);
 
+	list_add_tail(&ps2port->node, &ps2port_list);
+
 	return 0;
 
 fail:
 	free_irq(dev->irq, ps2port);
 
 fail_miserably:
-	list_del(&ps2port->node);
 	iounmap(ps2port->addr);
 	release_mem_region(dev->hpa, GSC_STATUS + 4);
 

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Subject: Re: [parisc-linux] [Alsa-devel] [PATCH] Support for AD1889 PCI
	Soundchip
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Thibaut VARENE wrote:
> Attached is a patch against 2.6.13-rc4 providing support for Analog
> Devices AD1889 PCI Sound chip, which is especially found on some HP
> PA-RISC machines.

I don't actually have this hardware :-), but the docs don't mention
any dependency between the count registers (BC, CC) and the interrupt
count registers (IC, IB).

So wouldn't it be possible to put the ALSA buffer size into the count
registers and the ALSA period size into the interrupt count registers?

This would make the interrupt handler much simpler, as it wouldn't
have to reprogram any registers.  And it would solve the problem that
the DMA accesses for one period go beyond the buffer when the number
of periods per buffer is not an integer.


Regards,
Clemens

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Subject: Re: [parisc-linux] [BUG] PDC stable storage broken on 2.6.13-rc3-pa1
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> PDC stable storage driver panics/hpmc's most/all parisc boxen
> with the current 2.6.13-rc3-pa1 kernels.
> 
> Here is the backtrace and console output for c3000.
> I won't be able to chase this today.
> Maybe this weekend if no one else gets to it first.

I think that the problem is that we have an infinite recursion that is
trashing the stack.

This is happening in hwpath_to_device() which is called by
pdcspath_fetch(). hwpath_to_device tranverses the device tree. It looks
like it recurses forever, eventually filling up the stack and trashing
stuff.

Not yet sure why, nor do I really understand how the device tree
iterators work. Perhaps somebody else who understands this better will
be able to fix it quickly ;-)

randolph

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On Thu, Aug 04, 2005 at 07:17:18PM -0600, dann frazier wrote:
> fyi, paer.debian.org was reported down.  The GSP's console log
> follows.  
> 
> dannf@paer:~$ uname -a
> Linux paer 2.6.8-2-64 #1 Tue Feb 8 05:54:00 EST 2005 parisc64 GNU/Linux

No register dump? That is the most interesting and usefull piece of
information :(

c.

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On Fri, 2005-08-05 at 15:53 -0400, Carlos O'Donell wrote:
> On Thu, Aug 04, 2005 at 07:17:18PM -0600, dann frazier wrote:
> > fyi, paer.debian.org was reported down.  The GSP's console log
> > follows.  
> > 
> > dannf@paer:~$ uname -a
> > Linux paer 2.6.8-2-64 #1 Tue Feb 8 05:54:00 EST 2005 parisc64 GNU/Linux
> 
> No register dump? That is the most interesting and usefull piece of
> information :(

Yeah; we really should be logging the console while its acting up...
I'll try to set that up.


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Subject: Re: [parisc-linux] paer.debian.org crash in ext3_write_inode()
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On Fri, Aug 05, 2005 at 02:47:18PM -0600, dann frazier wrote:
> > No register dump? That is the most interesting and usefull piece of
> > information :(
> 
> Yeah; we really should be logging the console while its acting up...
> I'll try to set that up.

pear is an a500?

If so, "cl" from the GSP will dump the last couple hundred lines
of console output.

grant
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Subject: [parisc-linux] USB Keyboard problems on C3600
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--===============1562706737==
Content-Type: multipart/signed; boundary="=-=-=";
	micalg=pgp-sha1; protocol="application/pgp-signature"

--=-=-=
Content-Transfer-Encoding: quoted-printable

Hi,

i have a MAC USB Keyboard, which won't work with the builtin USB
Controller of the C3600. If i connect it, i get this error messages:

usb 1-2: new full speed USB device using ohci_hcd and address 2
usb 1-2: device descriptor read/64, error -238
usb 1-2: device descriptor read/64, error -238
usb 1-2: new full speed USB device using ohci_hcd and address 3
usb 1-2: device descriptor read/64, error -238
usb 1-2: device descriptor read/64, error -238
usb 1-2: new full speed USB device using ohci_hcd and address 4
usb 1-2: device not accepting address 4, error -238

Now i use a PCI USB Controller, and with this the keyboard is working
fine, the only bad thing is that the Kernel crashes after 1-2h:

Backtrace:
 [<0012a8f4>] ohci_hub_status_data+0xa4/0x1dc [ohci_hcd]
 [<00148d64>] usb_hcd_poll_rh_status+0x4c/0x174 [usbcore]
 [<1013dea8>] run_timer_softirq+0x144/0x240
 [<10137ec4>] __do_softirq+0x140/0x194
 [<101046e0>] do_softirq+0x58/0x64
 [<1010d068>] intr_return+0x0/0x24
 [<10113eb0>] cpu_idle+0x20/0x30
 [<10182744>] dentry_open+0x120/0x380
 [<10113ebc>] cpu_idle+0x2c/0x30
 [<1054c8f4>] start_kernel+0x268/0x2ac


High Priority Machine Check (HPMC): Code=3D1 regs=3D10470080 (Addr=3D000000=
00)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110 Not tainted
r00-03  00000000 00126000 0012a8f4 4fe8e0c8
r04-07  4fe8e000 4fe8e000 105404c8 0000000f
r08-11  10540448 1046d010 00200200 1053c010
r12-15  00000000 ffffffff 00000000 f0400004
r16-19  10540140 f000017c f0000174 000000c0
r20-23  00000080 fb006048 0012a850 10eeaa08
r24-27  00000004 105404c8 4fe8e0c8 10464010
r28-31  fb006000 001404e8 105405c0 00148d64
sr0-3   00000000 00000000 00000000 0000e529
sr4-7   00000000 00000000 00000000 00000000

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000011111
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  4fe8dbc000000000 4fe503d000000020 111a0000f00008c4 000000011058b004
fr08-11  0000000300000000 111a000010eea9f8 105880102bf89280 000f41fa10585810
fr12-15  fdb79f6bbef796fb 6f73ef7effffffff ffffffff692e13f0 ffffffffffffffff
fr16-19  ffffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffff
fr20-23  7cdde347ffffffff ffffffffffffffff 02852756aebd0e21 0be451a19999999a
fr24-27  000007b100000000 3fe0000000000000 412e848000000000 00000000002dc6c0
fr28-31  0000000f111e013c 1047e01010182744 105a2a371047e010 111e009c00000000

IASQ: 00000000 00000000 IAOQ: 00126214 00126218
 IIR: 0ea00194    ISR: a627ffec  IOR: 01806048
 CPU:        0   CR30: 10540000 CR31: 10544000
 ORIG_R28: 00000000
 IAOQ[0]: roothub_a+0x8/0x64 [ohci_hcd]
 IAOQ[1]: roothub_a+0xc/0x64 [ohci_hcd]
 RP(r2): ohci_hub_status_data+0xa4/0x1dc [ohci_hcd]
Kernel panic - not syncing: High Priority Machine Check (HPMC)

BTW, the MAC Keyboard has a hub device build in, so i think that maybe a
problem. But the same keyboard works on x86 with 2.6.12 without
Problems. BTW, Kernel Version on the C3600 is 2.6.13-rc3-pa1, but this
happens also with 2.6.12-*

Any hints?

TIA,

Sven.
=2D-=20
Microsoft spelchekar vor sail, worgs grate!!!

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Subject: Re: [parisc-linux] paer.debian.org crash in ext3_write_inode()
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On Fri, 2005-08-05 at 23:14 -0600, Grant Grundler wrote:
> On Fri, Aug 05, 2005 at 02:47:18PM -0600, dann frazier wrote:
> > > No register dump? That is the most interesting and usefull piece of
> > > information :(
> > 
> > Yeah; we really should be logging the console while its acting up...
> > I'll try to set that up.
> 
> pear is an a500?
> 
> If so, "cl" from the GSP will dump the last couple hundred lines
> of console output.

right, that output is in my first message.


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Subject: Re: [parisc-linux] paer.debian.org crash in ext3_write_inode()
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On Sat, Aug 06, 2005 at 09:21:49AM -0600, dann frazier wrote:
> > > Yeah; we really should be logging the console while its acting up...
> > > I'll try to set that up.
> > 
> > pear is an a500?
> > 
> > If so, "cl" from the GSP will dump the last couple hundred lines
> > of console output.
> 
> right, that output is in my first message.

Ok..then the missing register dump isn't something logging
the console will fix. Not unless you want to make the
console log available from the internet...not something I'd
be real comfortable with.

thanks,
grant
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Subject: [parisc-linux] paer.debian.org crash in ext3_write_inode()
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fyi, paer.debian.org was reported down.  The GSP's console log
follows.  

dannf@paer:~$ uname -a
Linux paer 2.6.8-2-64 #1 Tue Feb 8 05:54:00 EST 2005 parisc64 GNU/Linux


GSP> cl


CL

<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:


Press Q/q to quit, Enter to continue:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:


Press Q/q to quit, Enter to continue:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:


Press Q/q to quit, Enter to continue:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:


Press Q/q to quit, Enter to continue:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:


Press Q/q to quit, Enter to continue:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:


Press Q/q to quit, Enter to continue:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:


Press Q/q to quit, Enter to continue:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:


Press Q/q to quit, Enter to continue:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:


Press Q/q to quit, Enter to continue:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]

Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000000012b024>] ext3_write_inode+0x3c/0x68 [ext3]





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Subject: Re: [parisc-linux] paer.debian.org crash in ext3_write_inode()
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Xref: news.gmane.org gmane.linux.ports.parisc:23033


dann frazier writes...

> On Fri, 2005-08-05 at 15:53 -0400, Carlos O'Donell wrote:
> > On Thu, Aug 04, 2005 at 07:17:18PM -0600, dann frazier wrote:
> > > fyi, paer.debian.org was reported down.  The GSP's console log
> > > follows.  
> > > 
> > > dannf@paer:~$ uname -a
> > > Linux paer 2.6.8-2-64 #1 Tue Feb 8 05:54:00 EST 2005 parisc64 GNU/Linux
> > 
> > No register dump? That is the most interesting and usefull piece of
> > information :(
> 
> Yeah; we really should be logging the console while its acting up...
> I'll try to set that up.

I can repeatably cause a kernel panic on paer now. The machine is running the 
Debian kernel-image-2.6.8-2-64 version 2.6.8-6 package. When I tried to run 
apt-get upgrade in an unstable chroot I got the following on the console,

=====================================================================
mm/memory.c:368: bad pmd 10555830.
mm/memory.c:110: bad pmd 000ec7f8.
mm/memory.c:110: bad pmd 000df000.
mm/memory.c:110: bad pmd 00000040.
mm/memory.c:110: bad pmd 00000063.
mm/memory.c:110: bad pmd 00000010.
mm/memory.c:110: bad pmd 00000010.
mm/memory.c:110: bad pmd 00200200.
mm/memory.c:110: bad pmd 00000001.
mm/memory.c:110: bad pmd fde77ea0.
kernel BUG at include/asm/mmzone.h:85!
Backtrace:
 [<00000000101164d8>] dump_stack+0x18/0x28
 [<000000001017b770>] clear_page_tables+0x2b0/0x380
 [<0000000010184194>] exit_mmap+0xf4/0x278
 [<00000000101420f4>] mmput+0x9c/0xd8
 [<0000000010147994>] do_exit+0x174/0x580
 [<0000000010147e48>] do_group_exit+0x50/0x108
 [<000000001015290c>] get_signal_to_deliver+0x314/0x4f0
 [<000000001011e0d4>] do_signal+0x3c/0x2a8
 [<00000000101072c8>] intr_do_signal+0x2c/0x34

Backtrace:
 [<0000000010184194>] exit_mmap+0xf4/0x278
 [<00000000101420f4>] mmput+0x9c/0xd8
 [<0000000010147994>] do_exit+0x174/0x580
 [<0000000010147e48>] do_group_exit+0x50/0x108
 [<000000001015290c>] get_signal_to_deliver+0x314/0x4f0
 [<000000001011e0d4>] do_signal+0x3c/0x2a8
 [<00000000101072c8>] intr_do_signal+0x2c/0x34


Bad Address (null pointer deref?): Code=15 regs=00000000fde74600 
(Addr=c00000790
256929f)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001011100000001111 Not tainted
r00-03  0000000000000000 0000000010555670 000000001017b770 00000000000000ff
r04-07  00000000104e6800 00000000fde78064 fffffff90256929f 0000000000000019
r08-11  00000000fde7a000 0000000010407df0 0000000010376230 0000000010578f50
r12-15  000000001055a100 00000000fde78000 00000000800 0000000000000002
r16-19  00000000ff14ee98 0000000000000003 0000000000000003 00000000000000e5
r20-23  0000000000000001 000000000800000f 00000000210c4327 000000000800000f
r24-27  ffffffffffffffff 0000000000000001 0000000010493fe8 00000000104e6800
r28-31  0000000000000001 00000000fde74980 00000000fde74600 0000000010573e58
sr0-3   0000000000006800 0000000000000000 0000000000000000 0000000000063000
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001017b61c 000000001017b620
 IIR: 0cc010d3    ISR: 000000003fffff80  IOR: c00000790256929f
 CPU:        0   CR30: 00000000fde74000 CR31: 00000000104ac000
 ORIG_R28: 0000000010144e5c
 IAOQ[0]: clear_page_tables+0x15c/0x380
 IAOQ[1]: clear_page_tables+0x160/0x380
 RP(r2): clear_page_tables+0x2b0/0x380
Kernel panic: Bad Address (null pointer deref?)
=====================================================================

We're running this kernel based on the recommendation of this list that it's 
the most stable, but I'm willing to try other versions if people have 
recommendations. Eventually we'd like whatever fixes this to be put in the 
Debian stable kernel-image package so we can keep using that version and count 
on security updates.

It might be good if someone can try and repeat on another machine, in case the 
problem is something with paer specifically.

Thanks,

--
Matt Taggart
taggart@debian.org


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From: Matt Taggart <taggart@debian.org>
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Subject: Re: [parisc-linux] paer.debian.org crash in ext3_write_inode()
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Matt Taggart writes...

> I can repeatably cause a kernel panic on paer now. The machine is running the
>  
> Debian kernel-image-2.6.8-2-64 version 2.6.8-6 package. When I tried to run 
> apt-get upgrade in an unstable chroot I got the following on the console,

I had a hunch that this problem was something to do with the apt in the 
unstable chroot so I tried some things to fix it.

First, using aptitude upgrade instead caused a crash as well, no surprise.

Second, I suspected that the problem might be a c++ issue, so I used dpkg to 
upgrade a few things by hand. After just upgrading libstdc++6 from 4.0.1-2 to 
4.0.1-3 the apt-get upgrade to no longer crashed the machine, but it still 
segfaulted. I then upgraded apt/apt-utils to 0.6.39 and now apt-get upgrade 
seems to work fine.

So paer is fixed, but apt shouldn't have been able to crash the kernel so it 
still might be nice to figure out why. I think the test case should be easy to 
replicate for someone who wanted to try and figure out why.

Thanks,

-- 
Matt Taggart
taggart@debian.org


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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: [parisc-linux] Why toggle_bounce only for disks?
Date: Sat, 6 Aug 2005 19:56:15 -0400
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Ahoi,

The following patch fixes a crash caused by attempting to bounce buffer
when an IDE CD-ROM is used on a machine with an IO-MMU. [At least, this
patch fixes things so I can use my IDE CD-ROM behind an ns87415 on a 
HP PA-RISC workstation.]

Why was this only allowed for disks?

--- a/drivers/ide/ide-lib.c   18 Jul 2005 18:46:30 -0000
+++ b/drivers/ide/ide-lib.c   6 Aug 2005 20:28:04 -0000
@@ -410,7 +410,7 @@ void ide_toggle_bounce(ide_drive_t *driv
 {
        u64 addr = BLK_BOUNCE_HIGH;     /* dma64_addr_t */
 
-       if (on && drive->media == ide_disk) {
+       if (on) {
                if (!PCI_DMA_BUS_IS_PHYS)
                        addr = BLK_BOUNCE_ANY;
                else if (HWIF(drive)->pci_dev)

Cheers,
-- 
Kyle McMartin
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Subject: [parisc-linux] Processor-Specific ELF Supplement for PA-RISC
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I noticed recently that HP has updated various defines for ELF under
HP-UX which are not documented in the ELF supplement.  I was wondering
if the supplement has been updated.  The last version that I can find
is version 1.5, August 20, 1998.  Some of these updates might also be
applicable to ia64.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Processor-Specific ELF Supplement for PA-RISC
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On Sunday 07 August 2005 06:31 pm, John David Anglin wrote:
> > hrm, i only have version 1.43 from October 6, 1997 ... can i get a copy
> > of your updated version and/or a URL for it ? :)
>
> There doesn't seem to be a link to it on the www.parisc-linux.org
> site but it's here <http://ftp.parisc-linux.org/docs/arch/elf-pa-hp.pdf>.

great, thanks

while we're on the subject of Processor-Specific ELF Supplements, anyone know 
where i can find the one for Alpha ? :)
-mike
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [Alsa-devel] [PATCH] Support for AD1889 PCI
	Soundchip
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Cc: alsa-devel@lists.sourceforge.net,
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To: Thibaut VARENE <T-Bone@parisc-linux.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:23038

I wrote:
> Thibaut VARENE wrote:
> > Attached is a patch against 2.6.13-rc4 providing support for Analog
> > Devices AD1889 PCI Sound chip, which is especially found on some HP
> > PA-RISC machines.
>
> I don't actually have this hardware :-), but the docs don't mention
> any dependency between the count registers (BC, CC) and the interrupt
> count registers (IC, IB).
>
> So wouldn't it be possible to put the ALSA buffer size into the count
> registers and the ALSA period size into the interrupt count registers?
>
> This would make the interrupt handler much simpler, as it wouldn't
> have to reprogram any registers.  And it would solve the problem that
> the DMA accesses for one period go beyond the buffer when the number
> of periods per buffer is not an integer.

... something like this (please test):


Index: alsa/alsa-driver/pci/ad1889.h
===================================================================
--- alsa.orig/alsa-driver/pci/ad1889.h	2005-08-04 17:56:50.000000000 +0200
+++ alsa/alsa-driver/pci/ad1889.h	2005-08-11 11:54:38.000000000 +0200
@@ -172,13 +172,6 @@
 #define AD_ADC_STATE	1
 #define AD_MAX_STATES	2

-/* "<ggg> T-Bone: parisc IOMMU can start DMA at any address.
-   But the IOMMU can only map at page size granularity."
-   This affects in particular .period_bytes_min */
-#define BUF_SIZE        PAGE_SIZE
-#define MAX_BUFS        32
-#define DMA_SIZE	(MAX_BUFS*BUF_SIZE)
-
 #define AD_CHAN_WAV	0x0001
 #define AD_CHAN_ADC	0x0002
 #define AD_CHAN_RES	0x0004
Index: alsa/alsa-driver/pci/ad1889.c
===================================================================
--- alsa.orig/alsa-driver/pci/ad1889.c	2005-08-11 10:46:42.000000000 +0200
+++ alsa/alsa-driver/pci/ad1889.c	2005-08-11 12:21:21.000000000 +0200
@@ -87,15 +87,11 @@ MODULE_PARM_DESC(ac97_quirk, "AC'97 work
 /* let's use the global sound debug interfaces */
 #define ad1889_debug(fmt, arg...) snd_printd(KERN_DEBUG fmt, ## arg)

-/* keep track of each hw register */
+/* keep track of some hw registers */
 struct ad1889_register_state {
 	u16 reg;	/* reg setup */
 	u32 addr;	/* dma base address */
-	u16 rate;	/* sample rate */
-	unsigned long pos;	/* last recorded DMA buffer position */
-	unsigned long buf;	/* period # */
 	unsigned long size;	/* DMA buffer size */
-	unsigned long count;	/* period size, aka nb bytes sent in the current DMA transfer */
 };

 struct snd_ad1889 {
@@ -118,13 +114,6 @@ struct snd_ad1889 {
 	struct ad1889_register_state wave;
 	struct ad1889_register_state ramc;

-	struct {
-		unsigned long wav_intr;
-		unsigned long adc_intr;
-		unsigned long syn_intr;
-		unsigned long res_intr;
-	} stats;
-
 	spinlock_t lock;
 };

@@ -172,22 +161,46 @@ ad1889_mute(struct snd_ad1889 *chip)
 }

 static inline void
-ad1889_load_adc_count(struct snd_ad1889 *chip, u32 count)
+ad1889_load_adc_buffer_address(struct snd_ad1889 *chip, u32 address)
+{
+	ad1889_writel(chip, AD_DMA_ADCBA, address);
+	ad1889_writel(chip, AD_DMA_ADCCA, address);
+}
+
+static inline void
+ad1889_load_adc_buffer_count(struct snd_ad1889 *chip, u32 count)
 {
 	ad1889_writel(chip, AD_DMA_ADCBC, count);
 	ad1889_writel(chip, AD_DMA_ADCCC, count);
+}
+
+static inline void
+ad1889_load_adc_interrupt_count(struct snd_ad1889 *chip, u32 count)
+{
 	ad1889_writel(chip, AD_DMA_ADCIB, count);
 	ad1889_writel(chip, AD_DMA_ADCIC, count);
-}
+}
+
+static inline void
+ad1889_load_wave_buffer_address(struct snd_ad1889 *chip, u32 address)
+{
+	ad1889_writel(chip, AD_DMA_WAVBA, address);
+	ad1889_writel(chip, AD_DMA_WAVCA, address);
+}

 static inline void
-ad1889_load_wave_count(struct snd_ad1889 *chip, u32 count)
+ad1889_load_wave_buffer_count(struct snd_ad1889 *chip, u32 count)
 {
 	ad1889_writel(chip, AD_DMA_WAVBC, count);
 	ad1889_writel(chip, AD_DMA_WAVCC, count);
+}
+
+static inline void
+ad1889_load_wave_interrupt_count(struct snd_ad1889 *chip, u32 count)
+{
 	ad1889_writel(chip, AD_DMA_WAVIB, count);
 	ad1889_writel(chip, AD_DMA_WAVIC, count);
-}
+}

 static void
 ad1889_channel_reset(struct snd_ad1889 *chip, unsigned int channel)
@@ -207,9 +220,9 @@ ad1889_channel_reset(struct snd_ad1889 *
 		ad1889_writew(chip, AD_DMA_WAV, reg);

 		/* clear IRQ and address counters and pointers */
-		ad1889_load_wave_count(chip, 0x0);
-		ad1889_writel(chip, AD_DMA_WAVBA, 0x0);
-		ad1889_writel(chip, AD_DMA_WAVCA, 0x0);
+		ad1889_load_wave_buffer_address(chip, 0x0);
+		ad1889_load_wave_buffer_count(chip, 0x0);
+		ad1889_load_wave_interrupt_count(chip, 0x0);

 		/* flush */
 		ad1889_readw(chip, AD_DMA_WAV);
@@ -226,9 +239,9 @@ ad1889_channel_reset(struct snd_ad1889 *
 		reg &= ~AD_DMA_LOOP;
 		ad1889_writew(chip, AD_DMA_ADC, reg);

-		ad1889_load_adc_count(chip, 0x0);
-		ad1889_writel(chip, AD_DMA_ADCBA, 0x0);
-		ad1889_writel(chip, AD_DMA_ADCCA, 0x0);
+		ad1889_load_adc_buffer_address(chip, 0x0);
+		ad1889_load_adc_buffer_count(chip, 0x0);
+		ad1889_load_adc_interrupt_count(chip, 0x0);

 		/* flush */
 		ad1889_readw(chip, AD_DMA_ADC);
@@ -290,11 +303,11 @@ static snd_pcm_hardware_t snd_ad1889_pla
 	.rate_max = 48000,
 	.channels_min = 1,
 	.channels_max = 2,
-	.buffer_bytes_max = DMA_SIZE,	/* max DMA buffer size in bytes */
-	.period_bytes_min = BUF_SIZE,	/* min size of period in bytes */
-	.period_bytes_max = DMA_SIZE,	/* max size of period in bytes */
-	.periods_min = 1,		/* min nb of periods in buffer */
-	.periods_max = MAX_BUFS,
+	.buffer_bytes_max = 256 * 1024,
+	.period_bytes_min = 32,
+	.period_bytes_max = 128 * 1024,
+	.periods_min = 2,
+	.periods_max = 256,
 	/*.fifo_size = 0,*/
 };

@@ -307,11 +320,11 @@ static snd_pcm_hardware_t snd_ad1889_cap
 	.rate_max = 48000,
 	.channels_min = 1,
 	.channels_max = 2,
-	.buffer_bytes_max = DMA_SIZE,	/* max DMA buffer size in bytes */
-	.period_bytes_min = BUF_SIZE,	/* min size of period in bytes */
-	.period_bytes_max = DMA_SIZE,	/* max size of period in bytes */
-	.periods_min = 1,		/* min nb of periods in buffer */
-	.periods_max = MAX_BUFS,
+	.buffer_bytes_max = 256 * 1024,
+	.period_bytes_min = 32,
+	.period_bytes_max = 128 * 1024,
+	.periods_min = 2,
+	.periods_max = 256,
 	/*.fifo_size = 0,*/
 };

@@ -381,24 +394,18 @@ snd_ad1889_playback_prepare(snd_pcm_subs
 	spin_lock_irq(&chip->lock);

 	chip->wave.size = size;
-	chip->wave.count = count;
 	chip->wave.reg = reg;
-	chip->wave.buf = 0;
-	chip->wave.pos = 0;
-	chip->wave.rate = rt->rate;
 	chip->wave.addr = rt->dma_addr;

 	ad1889_writew(chip, AD_DS_WSMC, chip->wave.reg);

 	/* Set sample rates on the codec */
-	ad1889_writew(chip, AD_DS_WAS, chip->wave.rate);
+	ad1889_writew(chip, AD_DS_WAS, rt->rate);

-	/* Set up DMA: first chunk address in curr addr, next one in base addr.
-	   Base will be loaded into curr by the hardware upon interrupt
-	   (as we use LOOP). Count holds the size of the chunk. */
-	ad1889_writel(chip, AD_DMA_WAVCA, chip->wave.addr);
-	ad1889_writel(chip, AD_DMA_WAVBA, chip->wave.addr + (count % size));
-	ad1889_load_wave_count(chip, chip->wave.count);
+	/* Set up DMA */
+	ad1889_load_wave_buffer_address(chip, chip->wave.addr);
+	ad1889_load_wave_buffer_count(chip, size);
+	ad1889_load_wave_interrupt_count(chip, count);

 	/* writes flush */
 	ad1889_readw(chip, AD_DS_WSMC);
@@ -407,7 +414,7 @@ snd_ad1889_playback_prepare(snd_pcm_subs

 	ad1889_debug("prepare playback: addr = 0x%x, count = %u, "
 			"size = %u, reg = 0x%x, rate = %u\n", chip->wave.addr,
-			count, size, reg, chip->wave.rate);
+			count, size, reg, rt->rate);
 	return 0;
 }

@@ -437,21 +444,15 @@ snd_ad1889_capture_prepare(snd_pcm_subst
 	spin_lock_irq(&chip->lock);

 	chip->ramc.size = size;
-	chip->ramc.count = count;
 	chip->ramc.reg = reg;
-	chip->ramc.buf = 0;
-	chip->ramc.pos = 0;
-	chip->ramc.rate = rt->rate;
 	chip->ramc.addr = rt->dma_addr;

 	ad1889_writew(chip, AD_DS_RAMC, chip->ramc.reg);

-	/* Set up DMA: first chunk address in curr addr, next one in base addr.
-	   Base will be loaded into curr by the hardware upon interrupt
-	   (as we use LOOP). Count holds the size of the chunk. */
-	ad1889_writel(chip, AD_DMA_ADCCA, chip->ramc.addr);
-	ad1889_writel(chip, AD_DMA_ADCBA, chip->ramc.addr + (count % size));
-	ad1889_load_adc_count(chip, chip->ramc.count);
+	/* Set up DMA */
+	ad1889_load_adc_buffer_address(chip, chip->ramc.addr);
+	ad1889_load_adc_buffer_count(chip, size);
+	ad1889_load_adc_interrupt_count(chip, count);

 	/* writes flush */
 	ad1889_readw(chip, AD_DS_RAMC);
@@ -460,7 +461,7 @@ snd_ad1889_capture_prepare(snd_pcm_subst

 	ad1889_debug("prepare capture: addr = 0x%x, count = %u, "
 			"size = %u, reg = 0x%x, rate = %u\n", chip->ramc.addr,
-			count, size, reg, chip->ramc.rate);
+			count, size, reg, rt->rate);
 	return 0;
 }

@@ -607,7 +608,6 @@ snd_ad1889_interrupt(int irq,
 		     struct pt_regs *regs)
 {
 	unsigned long st;
-	unsigned long next;
 	struct snd_ad1889 *chip = dev_id;

 	st = ad1889_readl(chip, AD_DMA_DISR);
@@ -623,82 +623,12 @@ snd_ad1889_interrupt(int irq,
 	if (st & (AD_DMA_DISR_PMAI|AD_DMA_DISR_PTAI))
 		ad1889_debug("Unexpected master or target abort interrupt!\n");

-	if (chip->pcm && (st & AD_DMA_DISR_WAVI) && chip->psubs) {
-		spin_lock(&chip->lock);
-
-		chip->stats.wav_intr++;
-
-		chip->wave.buf++;
-
-		/* calculate the current position: we get interrupts everytime
-		   the buffer empties, thus every wave.count bytes transfered */
-		chip->wave.pos += chip->wave.count;
-		chip->wave.pos %= chip->wave.size;
-
-		/* the next buffer will thus be current position + wave.count
-		   bytes away */
-		next = chip->wave.pos + chip->wave.count;
-		next %= chip->wave.size;
-
-		/* Load new DMA parameters (aka "the next chunk" in Base
-		   registers: upon next interrupt, they'll be automatically
-		   loaded in the Current registers, and we'll end up here
-		   preparing the new ones. Since "count" never gets modified
-		   elsewhere than in _prepare, we don't need to rewrite it. */
-		ad1889_writel(chip, AD_DMA_WAVBA, chip->wave.addr + next);
-
-		ad1889_readl(chip, AD_DMA_WAVBA); /* flush all those writes */
-
-		spin_unlock(&chip->lock);
-
+	if ((st & AD_DMA_DISR_WAVI) && chip->psubs)
 		snd_pcm_period_elapsed(chip->psubs);
-#if 0
-		ad1889_debug("chip->wave.pos = %d, chip->wave.count = %d, "
-				"chip->wave.size = %d\n", chip->wave.pos,
-				chip->wave.count, chip->wave.size);
-		ad1889_debug("chip->wave.addr (0x%lx) + next (0x%lx) = 0x%lx\n",
-				chip->wave.addr, next, chip->wave.addr + next);
-#endif
-	}
-
-	if (chip->pcm && (st & AD_DMA_DISR_ADCI) && chip->csubs) {
-		spin_lock(&chip->lock);
-
-		chip->stats.adc_intr++;
-
-		chip->ramc.buf++;
-
-		/* calculate the current position: we get interrupts everytime
-		   the buffer empties, thus every wave.count bytes transfered */
-		chip->ramc.pos += chip->ramc.count;
-		chip->ramc.pos %= chip->ramc.size;
-
-		/* the next buffer will thus be current position + wave.count
-		   bytes away */
-		next = chip->ramc.pos + chip->ramc.count;
-		next %= chip->ramc.size;
-
-		/* Load new DMA parameters (aka "the next chunk" in Base
-		   registers: upon next interrupt, they'll be automatically
-		   loaded in the Current registers, and we'll end up here
-		   preparing the new ones. Since "count" never gets modified
-		   elsewhere than in _prepare, we don't need to rewrite it. */
-		ad1889_writel(chip, AD_DMA_ADCBA, chip->ramc.addr + next);
-
-		ad1889_readl(chip, AD_DMA_ADCBA); /* flush all those writes */
-
-		spin_unlock(&chip->lock);
-
+	if ((st & AD_DMA_DISR_ADCI) && chip->csubs)
 		snd_pcm_period_elapsed(chip->csubs);
-#if 0
-		ad1889_debug("chip->ramc.pos = %d, chip->ramc.count = %d, "
-				"chip->ramc.size = %d\n", chip->ramc.pos,
-				chip->ramc.count, chip->ramc.size);
-		ad1889_debug("chip->ramc.addr (0x%lx) + next (0x%lx) = 0x%lx\n",
-				chip->ramc.addr, next, chip->ramc.addr + next);
-#endif
-	}

+	ad1889_readl(chip, AD_DMA_DISR); /* flush */
 	/* XXX under some circumstances the DISR write flush may not happen */

 	return IRQ_HANDLED;
@@ -741,7 +671,7 @@ snd_ad1889_pcm_init(struct snd_ad1889 *c

 	err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 						snd_dma_pci_data(chip->pci),
-						DMA_SIZE, DMA_SIZE);
+						128 * 1024, 256 * 1024);

 	if (err < 0) {
 		snd_printk(KERN_ERR PFX "buffer allocation error: %d\n", err);

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Xref: news.gmane.org gmane.linux.ports.parisc:23039

On Thu, Aug 11, 2005 at 06:03:54PM +0200, Joel Soete wrote:
> mmm, I am looking to the diff between 2.6.11 and 2.6.12 in p-l field only
> (i.e. arch/parisc and include/asm-parisc) and find a few related to threads
> excepted those hunks:

This should only effect unaligned traps, and only if the process has
flags set with prctl.

> --- linux-2.6.11.12-pa4-050316-gcc40/arch/parisc/kernel/unaligned.c
> 2004-10-04 21:12:49.000000000 +0200
> +++ linux-2.6.12.2-pa2-050626/arch/parisc/kernel/unaligned.c    2005-07-12
> 18:04:51.000000000 +0200
> @@ -513,15 +513,18 @@
>         register int flop=0;    /* true if this is a flop */
> 
>         /* log a message with pacing */
> -       if (user_mode(regs))
> -       {
> -               if (unaligned_count > 5 && jiffies - last_time > 5*HZ)
> -               {
> +       if (user_mode(regs)) {
> +                if (current->thread.flags & PARISC_UAC_SIGBUS) {
> +                        goto force_sigbus;
> +                }
> +
> +               if (unaligned_count > 5 && jiffies - last_time > 5*HZ) {
>                         unaligned_count = 0;
>                         last_time = jiffies;
>                 }
> -               if (++unaligned_count < 5)
> -               {
> +
> +               if (!(current->thread.flags & PARISC_UAC_NOPRINT)
> +                    && ++unaligned_count < 5) {
>                         char buf[256];
>                         sprintf(buf, "%s(%d): unaligned access to 0x" RFMT "
> at ip=0x" RFMT "\n",
>                                 current->comm, current->pid, regs->ior,
> regs->iaoq[0]);
> ====<>====
> --- linux-2.6.11.12-pa4-050316-gcc40/include/asm-parisc/processor.h
> 2005-01-13 08:53:35.000000000 +0100
> +++ linux-2.6.12.2-pa2-050626/include/asm-parisc/processor.h    2005-05-20
> 07:47:27.000000000 +0200
> @@ -121,8 +121,27 @@
>  };
> 
>  /* Thread struct flags. */
> +#define PARISC_UAC_NOPRINT     (1UL << 0)      /* see prctl and unaligned.c */
> +#define PARISC_UAC_SIGBUS      (1UL << 1)
>  #define PARISC_KERNEL_DEATH    (1UL << 31)     /* see die_if_kernel()... */
> 
> +#define PARISC_UAC_SHIFT       0
> +#define PARISC_UAC_MASK                (PARISC_UAC_NOPRINT|PARISC_UAC_SIGBUS)
> +
> +#define SET_UNALIGN_CTL(task,value)                                       \
> +        ({                                                                \
> +        (task)->thread.flags = (((task)->thread.flags & ~PARISC_UAC_MASK) \
> +                                | (((value) << PARISC_UAC_SHIFT) &        \
> +                                   PARISC_UAC_MASK));                     \
> +        0;                                                                \
> +        })
> +
> +#define GET_UNALIGN_CTL(task,addr)                                        \
> +        ({                                                                \
> +        put_user(((task)->thread.flags & PARISC_UAC_MASK)                 \
> +                 >> PARISC_UAC_SHIFT, (int __user *) (addr));             \
> +        })
> +
>  #define INIT_THREAD { \
>         regs:   {       gr: { 0, }, \
>                         fr: { 0, }, \
> 
> ====<>====
> 
> Sorry no more time today for me to check but may be could you have a look with
> tausq, patoferio and al ;-)
> 
> Thanks,
>     Joel
> 
> 
> -------------------------------------------------------
> NOTE! My email address is changing to ... @scarlet.be
> Please make the necessary changes in your address book. 
> 
> 
> 

-- 
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Looks like a good idea for us too.

Cheers,
	Kyle

----- Forwarded message from Bjorn Helgaas <bjorn.helgaas@hp.com> -----

Sender: linux-ia64-owner@vger.kernel.org
From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Subject: [PATCH] IDE: don't offer IDE_GENERIC on ia64
Date:	Thu, 11 Aug 2005 14:24:43 -0600

IA64 boxes only have PCI IDE devices, so there's no need to blindly poke
around in I/O port space.  Poking at things that don't exist causes MCAs
on HP ia64 systems.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>

Index: work-vga/drivers/ide/Kconfig
===================================================================
--- work-vga.orig/drivers/ide/Kconfig	2005-08-10 14:57:47.000000000 -0600
+++ work-vga/drivers/ide/Kconfig	2005-08-10 14:58:02.000000000 -0600
@@ -276,6 +276,7 @@
 
 config IDE_GENERIC
 	tristate "generic/default IDE chipset support"
+	depends on !IA64
 	default y
 	help
 	  If unsure, say Y.

----- End forwarded message -----

-- 
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Subject: [parisc-linux] GCC not disabling the use fr31 even with
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On Sun, Aug 07, 2005 at 04:14:36PM -0400, John David Anglin wrote:
> If you look at the register names and numbers, you will see that
> GCC doesn't deal with the right half of the fpregs in 64-bit mode,
> thus it wouldn't save and restore the right half of an fpreg.  There's
> only one place that I know of where there would be a reference to
> the right half of a floating point register and that's in a xmpyu.
> However, this only appears in the final code generation.

Yes, I agree with you :)
 
> > There may be a bug in objdump for disassembling that particular insn. I
> > don't know how the left/right completers are encoded in the insn.
> 
> How up-to-date is objdump?  I'm not seeing a problem.  Send .o.
> 
> If you look at the arch, you will see that there are 6 bits for
> specifying fpregs in instructions like fldw and xmpyu that can access
> either half.

.o file can be found at:
www.baldric.uwo.ca/~carlos/sched.o

carlos@firin:~/fsrc/linux-2.6-exp/linux-2.6$ hppa64-linux-gnu-objdump -d
kernel/sched.o | grep fr31R
     600:       5c df 00 9a     fldw 4c(r6),fr31R
    29d8:       5c df 24 8a     fldw 1244(r6),fr31R
    29fc:       5c df 24 8a     fldw 1244(r6),fr31R
    2a50:       5c df 24 8a     fldw 1244(r6),fr31R
    2a74:       5c df 24 8a     fldw 1244(r6),fr31R
  4c:   5f 5f 00 22     fldw 10(r26),fr31R
 130:   5c 3f 00 9a     fldw 4c(r1),fr31R
carlos@firin:~/fsrc/linux-2.6-exp/linux-2.6$ 

I think that objdump should not produce fr31R if it's dumping 2.0w code.

> > What is of real concern is the save/restore of fr31, when the compiler
> > has been told to disable floating point registers.
> 
> There's a bug there:
> 
> #define CONDITIONAL_REGISTER_USAGE \
> {                                               \
>   int i;                                        \
>   if (TARGET_DISABLE_FPREGS || TARGET_SOFT_FLOAT)\
>     {                                           \
>       for (i = FP_REG_FIRST; i < FP_REG_LAST; i++)\
> 	fixed_regs[i] = call_used_regs[i] = 1;  \
>     }                                           \
> 
> It looks like the '<' should be '<=".  It's not disabling the last
> fpreg.

Aha! Zat is ze bug! :)

CC'ing the list for the sake of posterity.

c.

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Subject: Re: [parisc-linux] [Alsa-devel] [PATCH] Support for AD1889 PCI
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On Thu, Aug 11, 2005 at 05:18:31PM +0200, Clemens Ladisch wrote:
> > This would make the interrupt handler much simpler, as it wouldn't
> > have to reprogram any registers.  And it would solve the problem that
> > the DMA accesses for one period go beyond the buffer when the number
> > of periods per buffer is not an integer.
> 
> ... something like this (please test):
> 

This doesn't apply against PA-RISC Linux CVS head (should have
no changes since submission) nor against ALSA CVS head... care to try
again? I don't have time to clean up the patch right now, it would
have to wait a week or so.

Cheers,
-- 
Kyle McMartin
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Subject: Re: [parisc-linux] [Alsa-devel] [PATCH] Support for AD1889 PCI
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Kyle McMartin wrote:
> On Thu, Aug 11, 2005 at 05:18:31PM +0200, Clemens Ladisch wrote:
> > ... something like this (please test):
>
> This doesn't apply against PA-RISC Linux CVS head (should have
> no changes since submission) nor against ALSA CVS head...

It should apply against both, but it seems somewhere some whitespaces
got lost ...

Here you go again.


Regards,
Clemens

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> On Thu, Aug 11, 2005 at 06:03:54PM +0200, Joel Soete wrote:
> > mmm, I am looking to the diff between 2.6.11 and 2.6.12 in p-l field =
only
> > (i.e. arch/parisc and include/asm-parisc) and find a few related to t=
hreads
> > excepted those hunks:
> 
> This should only effect unaligned traps, and only if the process has
> flags set with prctl.

Ok

Thanks a lot,
    Joel=0A=0A-----------------------------------------------------------=
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Hi,

when trying to setup a chroot system for compiling packages, my C3600 just=
 crashes with=20

Kernel panic - not syncing: BUG!

when I try to use the SysRq, I just do not get any output:

SysRq : HELP : loglevel0-8 reBoot tErm Full kIll saK showMem Nice showPc u=
nRa
w Sync showTasks Unmount=20
SysRq : Show State
SysRq : Show Memory
SysRq : Show Regs
SysRq : Resetting

What i do then, is reboot and check the pim info: All fields are just 0.
The problem seems to be related to a newly compiled glibc (glibc from CVS,=
 built with gcc4 (gcc version 4.0.2 20050720)) that I want to use in the c=
hroot system. I already upgraded the kernel to kernel 2.6.13-rc6-pa1 (comp=
iled with gcc version 3.3.5).

Does anyone have a hint, how I possibly could get some more information ab=
out this problem=3F=20


Thanks

Berthold
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
Mit der Gruppen-SMS von WEB.DE FreeMail k=F6nnen Sie eine SMS an alle=20
Freunde gleichzeitig schicken: http://freemail.web.de/features/=3Fmc=3D021179



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> 
> Hi,
> 
> when trying to setup a chroot system for compiling packages, my C3600 j=
ust
crashes with 
> 
> Kernel panic - not syncing: BUG!
> 
> when I try to use the SysRq, I just do not get any output:
> 
> SysRq : HELP : loglevel0-8 reBoot tErm Full kIll saK showMem Nice showP=
c unRa
> w Sync showTasks Unmount 
> SysRq : Show State
> SysRq : Show Memory
> SysRq : Show Regs
> SysRq : Resetting
> 
Sorry no clue about SysRq...

> What i do then, is reboot and check the pim info: All fields are just 0=
.
Afaik piminfo fields are only fill in when a hpmc (High Priority Machine
Check) occures (on hpux generaly when an unexpected hw failure occures) o=
r you
 trigger a TOC (Transfer Of Control). So all zero would just mean that no=
 hpmc
occures.

> The problem seems to be related to a newly compiled glibc (glibc from C=
VS,
built with gcc4 (gcc version 4.0.2 20050720))
Yes it seems to be confirmed (eventhought with a kernel 2.6.11 it works
without pb???)

> that I want to use in the chroot system. I already upgraded the kernel =
to
kernel 2.6.13-rc6-pa1 (compiled with gcc version 3.3.5).
> 
> Does anyone have a hint, how I possibly could get some more information=

about this problem? 
> 
No idea, sorry?

Joel=0A=0A---------------------------------------------------------------=
=0AA free anti-spam and anti-virus filter on all Scarlet mailboxes=0AMore=
 info on http://www.scarlet.be/

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Subject: [parisc-linux] Re: GCC not disabling the use fr31 even with
	-mdisable-fpregs.
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In-Reply-To: <20050807233503.GE9703@systemhalted.org> from "Carlos O'Donell"
	at Aug 7, 2005 07:35:08 pm
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> .o file can be found at:
> www.baldric.uwo.ca/~carlos/sched.o
> 
> carlos@firin:~/fsrc/linux-2.6-exp/linux-2.6$ hppa64-linux-gnu-objdump -d
> kernel/sched.o | grep fr31R
>      600:       5c df 00 9a     fldw 4c(r6),fr31R
>     29d8:       5c df 24 8a     fldw 1244(r6),fr31R
>     29fc:       5c df 24 8a     fldw 1244(r6),fr31R
>     2a50:       5c df 24 8a     fldw 1244(r6),fr31R
>     2a74:       5c df 24 8a     fldw 1244(r6),fr31R
>   4c:   5f 5f 00 22     fldw 10(r26),fr31R
>  130:   5c 3f 00 9a     fldw 4c(r1),fr31R
> carlos@firin:~/fsrc/linux-2.6-exp/linux-2.6$ 

Need preproccessed source and .s output.

> I think that objdump should not produce fr31R if it's dumping 2.0w code.

To my eye, objdump is doing the right thing.  The difference between
narrow and wide only comes in the interpretation of the space register
bits.  They are zero in the above instructions.

There must be another bug that's setting the R bit.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Aug 11, 2005 at 04:26:45PM -0400, Kyle McMartin wrote:
> Looks like a good idea for us too.

Yes - but see the followup from Alan Cox:
http://www.uwsg.indiana.edu/hypermail/linux/kernel/0508.1/1412.html

original thread starts here:
http://www.uwsg.indiana.edu/hypermail/linux/kernel/0508.1/1264.html

grant
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From: Lee Revell <rlrevell@joe-job.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [2.6 patch] schedule obsolete OSS drivers for
	removal (version 2)
Date: Fri, 12 Aug 2005 15:58:48 -0400
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Cc: Andrew Morton <akpm@osdl.org>,
 alsa-devel@alsa-project.org,
 zab@zabbo.net,
 Christoph Eckert <ce@christeck.de>,
 zaitcev@yahoo.com,
 kyle@parisc-linux.org,
 James@superbug.demon.co.uk,
 gregkh@suse.de,
 linux-kernel@vger.kernel.org,
 linux-sound@vger.kernel.org,
 sailer@ife.ee.ethz.ch,
 parisc-linux@lists.parisc-linux.org,
 perex@suse.cz,
 Thorsten Knabe <linux@thorsten-knabe.de>,
 NAGANO Daisuke <breeze.nagano@nifty.ne.jp>,
 jgarzik@pobox.com,
 linux-usb-devel@lists.sourceforge.net
To: Adrian Bunk <bunk@stusta.de>
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On Tue, 2005-08-09 at 19:49 +0200, Adrian Bunk wrote:
> On Tue, Aug 09, 2005 at 01:13:51PM -0400, Lee Revell wrote:
> > On Fri, 2005-07-29 at 17:32 +0200, Adrian Bunk wrote:
> > > This patch schedules obsolete OSS drivers (with ALSA drivers that 
> > > support the same hardware) for removal.
> > > 
> > > Scheduling the via82cxxx driver for removal was ACK'ed by Jeff Garzik.
> > > 
> > 
> > Someone on linux-audio-user just pointed out that the OSS USB audio and
> > midi modules were never deprecated, much less scheduled to be removed.
> > 
> > Maybe the best way to deprecate them is to move them to Sound -> OSS,
> > that's where they belong anyway.
> 
> I'd deprecate them without moving them.
> 

Here's the patch.  The bug was that CONFIG_USB_AUDIO and CONFIG_USB_MIDI
need to depend on CONFIG_SOUND_PRIME.

It also fixes some typos and clarifies the help text.

Signed-Off-By: Lee Revell <rlrevell@joe-job.com>

--- linux-2.6.13-rc4/drivers/usb/class/Kconfig~	2005-08-12 15:54:36.000000000 -0400
+++ linux-2.6.13-rc4/drivers/usb/class/Kconfig	2005-08-12 15:57:38.000000000 -0400
@@ -5,12 +5,12 @@
 	depends on USB
 
 config USB_AUDIO
-	tristate "USB Audio support"
-	depends on USB && SOUND
+	tristate "USB Audio support (OSS)"
+	depends on USB && SOUND_PRIME
 	help
 	  Say Y here if you want to connect USB audio equipment such as
 	  speakers to your computer's USB port. You only need this if you use
-	  the OSS sound driver; ALSA has its own option for usb audio support.
+	  the OSS sound system; ALSA has its own option for USB audio support.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called audio.
@@ -39,11 +39,13 @@
 	  module will be called bluetty.
 
 config USB_MIDI
-	tristate "USB MIDI support"
-	depends on USB && SOUND
+	tristate "USB MIDI support (OSS)"
+	depends on USB && SOUND_PRIME
 	---help---
 	  Say Y here if you want to connect a USB MIDI device to your
-	  computer's USB port. This driver is for devices that comply with
+	  computer's USB port. You only need this if you use the OSS 
+	  sound system; USB MIDI devices are supported by ALSA's USB 
+	  audio driver.  This driver is for devices that comply with
 	  'Universal Serial Bus Device Class Definition for MIDI Device'.
 
 	  The following devices are known to work:


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After finally getting the Sarge 3.1 install to boot by changing / adding the
ramdisk_size=32768 to the IPL I got stuck at the sym0 line.

I hooked up a terminal and removed the USB keyboard and mouse.  It booted
just fine!!  I have now re-attached the USB keyboard and mouse and am
continuing the installation.

 

I really have a hard time finding information on the web about this small
issue and though I would share this.

 

I am also new to putting Linux on a PA-Risc although I have installed many
HP-UX systems.

 

I have been trying to get a Gentoo installation to boot and still face some
issues there; just missing something in the kernel config.

 

This is really neat stuff.

 

 


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<div class=3DSection1>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>After finally getting the Sarge 3.1 install to boot =
by
changing / adding the ramdisk_size=3D32768 to the IPL I got stuck at the =
sym0
line.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I hooked up a terminal and removed the USB keyboard =
and
mouse.&nbsp; It booted just fine!!&nbsp; I have now re-attached the USB =
keyboard and
mouse and am continuing the installation.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I really have a hard time finding information on the =
web
about this small issue and though I would share =
this.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I am also new to putting Linux on a PA-Risc although =
I have
installed many HP-UX systems.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I have been trying to get a Gentoo installation to =
boot and
still face some issues there; just missing something in the kernel =
config.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>This is really neat =
stuff.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

</div>

</body>

</html>

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> On Fri, Aug 12, 2005 at 09:54:55AM -0400, John David Anglin wrote:
> > ldw instruction at 101068ac has executed.  The sequence of
> > insns starting at 101068ac is the beginning of the epilogue for
> > handle_interruption (register restores and return).  Thus,
> > handle_interruption is going to return to 101068ac.  I don't
> > know but the insn at 101068ac might be generating TLB miss
> > faults.
> 
> Yes, I think we said almost the same thing. You are describing
> the case where we return from the fault and I'm describing
> the case where 101068ac causes the initial fault while
> handling a fault. Sounds like %sp was corrupted since references
> to %sp shouldn't ever fault...unless we went off the end of the stack?
> 
> I'm getting the impression this discussion should happen on
> the parisc-linux mailing list.
> 
> > I will try to set up a testcase.

With 2.6.8.1-pa11, cc1plus generates a SIGSEGV here:

0x00418d98 <ggc_set_mark+0>:    stw rp,-14(,sp)

The backtrace is:

(gdb) bt
#0  ggc_set_mark (p=0x404c12a0) at ../../gcc/gcc/ggc-page.c:1254
#1  0x00109ec0 in gt_ggc_mx_lang_tree_node (x_p=0x404c12a0) at gt-cp-tree.h:69
... [lots more frames]

(gdb) disass gt_ggc_mx_lang_tree_node
Dump of assembler code for function gt_ggc_mx_lang_tree_node:
0x00109e84 <gt_ggc_mx_lang_tree_node+0>:        stw rp,-14(,sp)
0x00109e88 <gt_ggc_mx_lang_tree_node+4>:        stw,ma r7,80(,sp)

(gdb) p/x $sp
$2 = 0xc0700040

So, the frame allocation by gt_ggc_mx_lang_tree_node appears to span
a page boundary and the store into the frame marker by ggc_set_mark
causes a data TLB miss and the SIGSEGV.  This causes the 2.6.13 kernel
to crash in what's apparently an infinite loop involving
handle_interruption.

So, I think the bug is that 2.6.13 (32-bit) crashes when we have a data
TLB miss for an address outside the allowed bounds for the stack.  Probably,
any simple program that recursively allocates stack frames until the
allowed stack size is exceeded will demonstrate the problem.

The C++ program that causes the system crash when compiled with cc1plus
from the GCC head is shown below.  Note that there is a change to GCC's
inlining in 4.1, and 4.0 doesn't cause the SIGSEGV.  My stack limit is
the default 8192 kbytes.  The c3k kernel is default except I had to
disable CONFIG_PDC_STABLE and CONFIG_INFINIBAND.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

// { dg-options "-O2 -ftemplate-depth-20000" }

template <int I>
inline void g() { g<I-1>(); return; }

template <>
inline void g<0>() { int i; return; }

void h() {
  g<250>();
}
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On Fri, Aug 12, 2005 at 04:22:50PM +0200, Berthold Gunreben wrote:
> Kernel panic - not syncing: BUG!

that's not much to go on. :^(

...
> I already upgraded the kernel to kernel 2.6.13-rc6-pa1 (compiled with gcc version 3.3.5).

John David Anglin seems to have uncovered what might be causing
such lock-ups on 2.6.13 kernels.  The discussion for this just started.
Can you follow that and try a new kernel once the fix is committed to CVS?

thanks,
grant
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On Fri, Aug 12, 2005 at 08:00:50PM -0400, John David Anglin wrote:
> With 2.6.8.1-pa11, cc1plus generates a SIGSEGV here:
> 
> 0x00418d98 <ggc_set_mark+0>:    stw rp,-14(,sp)
> 
> The backtrace is:
> 
> (gdb) bt
> #0  ggc_set_mark (p=0x404c12a0) at ../../gcc/gcc/ggc-page.c:1254
> #1  0x00109ec0 in gt_ggc_mx_lang_tree_node (x_p=0x404c12a0) at gt-cp-tree.h:69
> ... [lots more frames]
> 
> (gdb) disass gt_ggc_mx_lang_tree_node
> Dump of assembler code for function gt_ggc_mx_lang_tree_node:
> 0x00109e84 <gt_ggc_mx_lang_tree_node+0>:        stw rp,-14(,sp)
> 0x00109e88 <gt_ggc_mx_lang_tree_node+4>:        stw,ma r7,80(,sp)
> 
> (gdb) p/x $sp
> $2 = 0xc0700040
> 
> So, the frame allocation by gt_ggc_mx_lang_tree_node appears to span
> a page boundary and the store into the frame marker by ggc_set_mark
> causes a data TLB miss and the SIGSEGV.  This causes the 2.6.13 kernel
> to crash in what's apparently an infinite loop involving
> handle_interruption.
> 
> So, I think the bug is that 2.6.13 (32-bit) crashes when we have a data
> TLB miss for an address outside the allowed bounds for the stack.  Probably,
> any simple program that recursively allocates stack frames until the
> allowed stack size is exceeded will demonstrate the problem.

While I believe you are probably right, I could not reproduce
this on my c3k here at home:

svenc3k:/# ls -l foo.*
-rw-r--r--  1 root root 180 Aug 13 04:40 foo.cc
-rw-r--r--  1 root root 748 Aug 13 04:42 foo.o
svenc3k:/# g++-4.0 -O2 -ftemplate-depth-20000 -c foo.cc
svenc3k:/# ls -l foo.*
-rw-r--r--  1 root root 180 Aug 13 04:40 foo.cc
-rw-r--r--  1 root root 748 Aug 13 04:44 foo.o
svenc3k:/# ulimit -a
core file size        (blocks, -c) 0
data seg size         (kbytes, -d) unlimited
file size             (blocks, -f) unlimited
max locked memory     (kbytes, -l) unlimited
max memory size       (kbytes, -m) unlimited
open files                    (-n) 1024
pipe size          (512 bytes, -p) 8
stack size            (kbytes, -s) 8192
cpu time             (seconds, -t) unlimited
max user processes            (-u) unlimited
virtual memory        (kbytes, -v) unlimited
svenc3k:/#

svenc3k:/# gcc-4.0 -v
Using built-in specs.
Target: hppa-linux-gnu
Configured with: ../src/configure -v --enable-languages=c,c++,java,f95,objc,ada,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --enable-nls --without-included-gettext --enable-threads=posix --program-suffix=-4.0 --enable-__cxa_atexit --enable-libstdcxx-allocator=mt --enable-clocale=gnu --enable-libstdcxx-debug --enable-java-gc=boehm --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre --enable-mpfr --disable-werror --enable-checking=release hppa-linux-gnu
Thread model: posix
gcc version 4.0.2 20050806 (prerelease) (Debian 4.0.1-4)

> The C++ program that causes the system crash when compiled with cc1plus
> from the GCC head is shown below.  Note that there is a change to GCC's
> inlining in 4.1, and 4.0 doesn't cause the SIGSEGV.

I expect this is the difference...I need to use the same g++ version.
Does someone want to hack a small test program that consumes
stack space until it bombs out becuase of the ulimit?


>   My stack limit is
> the default 8192 kbytes.  The c3k kernel is default except I had to
> disable CONFIG_PDC_STABLE and CONFIG_INFINIBAND.

I'm not certain I have a perfectly clean -rc3-pa1 kernel either.
I expect I have some PCI changes and the same .config changes you
have listed above.

thanks,
grant
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Subject: [parisc-linux] Re: gsyprf11 and 2.6.13-rc3-pa1
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> While I believe you are probably right, I could not reproduce
> this on my c3k here at home:

One additional detail is the kernel was built with
gcc version 4.0.1 (Debian 4.0.1-2).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: gsyprf11 and 2.6.13-rc3-pa1
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> svenc3k:/# gcc-4.0 -v
> Using built-in specs.
> Target: hppa-linux-gnu
> Configured with: ../src/configure -v --enable-languages=c,c++,java,f95,objc,ada,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --enable-nls --without-included-gettext --enable-threads=posix --program-suffix=-4.0 --enable-__cxa_atexit --enable-libstdcxx-allocator=mt --enable-clocale=gnu --enable-libstdcxx-debug --enable-java-gc=boehm --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre --enable-mpfr --disable-werror --enable-checking=release hppa-linux-gnu
> Thread model: posix
> gcc version 4.0.2 20050806 (prerelease) (Debian 4.0.1-4)

I think that i said in the report that it's a change to the inlining
in gcc 4.1.0 that triggers this.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: gsyprf11 and 2.6.13-rc3-pa1
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On Fri, 2005-08-12 at 23:02 -0600, Grant Grundler wrote:
> I expect this is the difference...I need to use the same g++ version.
> Does someone want to hack a small test program that consumes
> stack space until it bombs out becuase of the ulimit?

Here's a test program that does this:

#include <stdio.h>

char *stack_base_estimate;

void
recurse(void)
{
	char a[256];

	memset(a, '\0', sizeof(*a));
	printf("Estimating stack consumed 0x%lx\n",
	       (unsigned long)(a - stack_base_estimate));
	recurse();
}

int
main(int argc, char *argv[])
{
	char b;

	stack_base_estimate = &b;
	printf("Estimating stack base at 0x%p\n", stack_base_estimate);
	recurse();
	return 0;
}
		
But the results are as expected (on 2.6.13-rc6-pa1):

jejb@raven> ulimit -a
core file size        (blocks, -c) 0
data seg size         (kbytes, -d) unlimited
file size             (blocks, -f) unlimited
max locked memory     (kbytes, -l) unlimited
max memory size       (kbytes, -m) unlimited
open files                    (-n) 1024
pipe size          (512 bytes, -p) 8
stack size            (kbytes, -s) 8192
cpu time             (seconds, -t) unlimited
max user processes            (-u) unlimited
virtual memory        (kbytes, -v) unlimited
jejb@raven> a.out
Estimating stack base at 0x0xc0114548
Estimating stack consumed 0x80
[...]
Estimating stack consumed 0x7fefc0
Estimating stack consumed 0x7ff100
Segmentation fault

James


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This one I think is Linus' fault, so send him a brown paper bag with my
complements ...

The index cleanup code is executed via atexit() which is *after* main
has completed, so the stack allocated cache_file has gone out of scope.
Parisc seems to use stack in the destructor functions, so cache_file
gets partially overwritten leading to the predictable disastrous
consequences.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

---

James

diff --git a/checkout-cache.c b/checkout-cache.c
--- a/checkout-cache.c
+++ b/checkout-cache.c
@@ -80,10 +80,11 @@ static int checkout_all(void)
 static const char checkout_cache_usage[] =
 "git-checkout-cache [-u] [-q] [-a] [-f] [-n] [--prefix=<string>] [--] <file>...";
 
+static struct cache_file cache_file;
+
 int main(int argc, char **argv)
 {
 	int i, force_filename = 0;
-	struct cache_file cache_file;
 	int newfd = -1;
 
 	if (read_cache() < 0) {
diff --git a/index.c b/index.c


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Subject: [parisc-linux] parisc git tree up and running
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I used to run bitkeeper trees for the convenience of those who needed to
check bitkeeper on current parisc.  I've been a bit remiss since
bitkeeper went away, but I've finally got the parisc trees into git.
Like their prior bitkeeper counterparts, they're simply shadow copies of
the imported parisc patch sets, not full copies of our cvs tree
(primarily because keeping a full copy would be too much work and I
can't be bothered). Also, I only merge up to Linus' head when I feel
like it rather than every time he pushes something.

They're browseable here:

http://www.parisc-linux.org/cgi-bin/gitweb.pl

and available for download here:

rsync://www.parisc-linux.org/~jejb/git/parisc-2.6.git

James


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On Sat, Aug 13, 2005 at 10:29:32AM -0500, James Bottomley wrote:
> This one I think is Linus' fault, so send him a brown paper bag with my
> complements ...
> 

Cool, thanks for catching this one, James. I looked into it a couple
months ago, but didn't see this obvious problem.

Cheers,
-- 
Kyle McMartin
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Subject: Re: [parisc-linux] Re: gsyprf11 and 2.6.13-rc3-pa1
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> On Fri, 2005-08-12 at 23:02 -0600, Grant Grundler wrote:
> > I expect this is the difference...I need to use the same g++ version.
> > Does someone want to hack a small test program that consumes
> > stack space until it bombs out becuase of the ulimit?
> 
> Here's a test program that does this:
> But the results are as expected (on 2.6.13-rc6-pa1):

It doesn't trigger the fault on my c3k with 2.6.13-rc3-pa1 either.

However,

cc1plus -O2 -ftemplate-depth-20000 inline4.C

consistently crashes my c3k.  There must be something more than
just running out of stack space.  Strangely, the system doesn't
crash when cc1plus is run under gdb.

dave@hiauly6:~/gnu/gcc-4.0/objdir/gcc$ ./cc1plus --version
GNU C++ version 4.1.0 20050813 (experimental) (hppa-linux)
        compiled by GNU C version 4.1.0 20050813 (experimental).
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096

Another TOC gave the following:

r2	0x1010c260	search_exception_tables+0x34
IIA	0x1020c76c	search_extable+0x10

I've seen this once before.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: gsyprf11 and 2.6.13-rc3-pa1
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> However,
> 
> cc1plus -O2 -ftemplate-depth-20000 inline4.C
> 
> consistently crashes my c3k.

I tried this with builds of 2.6.13-rc6-pa1 with debian gcc-3.3, gcc-3.4
and gcc-4.0.  They all crash in the same manner.

I will send cc1plus by separate mail to anyone interested in trying to
duplicate this.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > > What is of real concern is the save/restore of fr31, when the compiler
> > > has been told to disable floating point registers.
> > 
> > There's a bug there:
> > 
> > #define CONDITIONAL_REGISTER_USAGE \
> > {                                               \
> >   int i;                                        \
> >   if (TARGET_DISABLE_FPREGS || TARGET_SOFT_FLOAT)\
> >     {                                           \
> >       for (i = FP_REG_FIRST; i < FP_REG_LAST; i++)\
> > 	fixed_regs[i] = call_used_regs[i] = 1;  \
> >     }                                           \
> > 
> > It looks like the '<' should be '<=".  It's not disabling the last
> > fpreg.
> 
> Aha! Zat is ze bug! :)

This is now fixed in all active gcc branches (3.4, 4.0 and head).  The
problem has been present since the hppa64 port was introduced (3.0).

Dave
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Subject: [parisc-linux] Re: gsyprf11 and 2.6.13-rc3-pa1
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> > > Odd that it uses "rp" for the insn at 101068ac and "%r2"
> > > for the b,l insn at 101068a4.
> > 
> > I'll look at it.  It's a small inconsistency in hppa-dis.c,
> > affecting objdump, etc.
> 
> ok. minor problem though.

This is now fixed in binutils head along with a couple of other
special cases where we printed '%' before register names.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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Cc: parisc-linux@lists.parisc-linux.org,
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 zab@zabbo.net,
 Christoph Eckert <ce@christeck.de>,
 zaitcev@yahoo.com,
 kyle@parisc-linux.org,
 James@superbug.demon.co.uk,
 gregkh@suse.de,
 linux-kernel@vger.kernel.org,
 linux-sound@vger.kernel.org,
 sailer@ife.ee.ethz.ch,
 Thorsten Knabe <linux@thorsten-knabe.de>,
 NAGANO Daisuke <breeze.nagano@nifty.ne.jp>,
 jgarzik@pobox.com,
 perex@suse.cz,
 linux-usb-devel@lists.sourceforge.net
To: Lee Revell <rlrevell@joe-job.com>,
 Andrew Morton <akpm@osdl.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:23064

On Fri, Aug 12, 2005 at 03:58:48PM -0400, Lee Revell wrote:
> On Tue, 2005-08-09 at 19:49 +0200, Adrian Bunk wrote:
> > On Tue, Aug 09, 2005 at 01:13:51PM -0400, Lee Revell wrote:
> > > On Fri, 2005-07-29 at 17:32 +0200, Adrian Bunk wrote:
> > > > This patch schedules obsolete OSS drivers (with ALSA drivers that 
> > > > support the same hardware) for removal.
> > > > 
> > > > Scheduling the via82cxxx driver for removal was ACK'ed by Jeff Garzik.
> > > > 
> > > 
> > > Someone on linux-audio-user just pointed out that the OSS USB audio and
> > > midi modules were never deprecated, much less scheduled to be removed.
> > > 
> > > Maybe the best way to deprecate them is to move them to Sound -> OSS,
> > > that's where they belong anyway.
> > 
> > I'd deprecate them without moving them.
> > 
> 
> Here's the patch.  The bug was that CONFIG_USB_AUDIO and CONFIG_USB_MIDI
> need to depend on CONFIG_SOUND_PRIME.
>...

This doesn't deprecate them (I've deprecated only some of the options 
below CONFIG_SOUND_PRIME).

What about the patch below?

A second "deprecated OSS" option doesn't do much harm and seems to be 
the easiest solution.

cu
Adrian


<--  snip  -->


Deprecate the OSS USB drivers.

This patch includes spelling fixes by Lee Revell.


Signed-off-by: Adrian Bunk <bunk@stusta.de>

---

 Documentation/feature-removal-schedule.txt |    2 +-
 drivers/usb/class/Kconfig                  |   21 ++++++++++++++++++---
 2 files changed, 19 insertions(+), 4 deletions(-)

--- linux-2.6.13-rc5-mm1-full/Documentation/feature-removal-schedule.txt.old	2005-08-14 12:53:46.000000000 +0200
+++ linux-2.6.13-rc5-mm1-full/Documentation/feature-removal-schedule.txt	2005-08-14 12:54:01.000000000 +0200
@@ -42,7 +42,7 @@
 
 ---------------------------
 
-What:	drivers depending on OBSOLETE_OSS_DRIVER
+What:	drivers depending on OBSOLETE_OSS_DRIVER or OBSOLETE_OSS_USB_DRIVER
 When:	October 2005
 Why:	OSS drivers with ALSA replacements
 Who:	Adrian Bunk <bunk@stusta.de>
--- linux-2.6.13-rc5-mm1-full/drivers/usb/class/Kconfig.old	2005-08-14 12:47:29.000000000 +0200
+++ linux-2.6.13-rc5-mm1-full/drivers/usb/class/Kconfig	2005-08-14 12:54:52.000000000 +0200
@@ -4,9 +4,22 @@
 comment "USB Device Class drivers"
 	depends on USB
 
+config OBSOLETE_OSS_USB_DRIVER
+	bool "Obsolete OSS USB drivers"
+	depends on USB && SOUND
+	help
+	  This option enables support for the obsolete USB Audio and Midi
+	  drivers that are scheduled for removal in the near future since
+	  there are ALSA drivers for the same hardware.
+
+	  Please contact Adrian Bunk <bunk@stusta.de> if you had to
+	  say Y here because of missing support in the ALSA drivers.
+
+	  If unsure, say N.
+
 config USB_AUDIO
 	tristate "USB Audio support"
-	depends on USB && SOUND
+	depends on USB && SOUND && OBSOLETE_OSS_USB_DRIVER
 	help
 	  Say Y here if you want to connect USB audio equipment such as
 	  speakers to your computer's USB port. You only need this if you use
@@ -40,10 +53,12 @@
 
 config USB_MIDI
 	tristate "USB MIDI support"
-	depends on USB && SOUND
+	depends on USB && SOUND && OBSOLETE_OSS_USB_DRIVER
 	---help---
 	  Say Y here if you want to connect a USB MIDI device to your
-	  computer's USB port. This driver is for devices that comply with
+	  computer's USB port.  You only need this if you use the OSS
+	  sound system; USB MIDI devices are supported by ALSA's USB
+	  audio driver. This driver is for devices that comply with
 	  'Universal Serial Bus Device Class Definition for MIDI Device'.
 
 	  The following devices are known to work:

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Xref: news.gmane.org gmane.linux.ports.parisc:23065

I am trying to put an Ethernet card into my new (to me) C160 without any
success.  Any time I put a PCI card in, the machine refused to boot and
gives me the message:

   *****
   ***** Disabled the PCI USB card in slot 3.
   *****
   * *   An unsupported PCI I/O configuration has been detected. * *
   * *   Contact your HP service representative for warranty     * *
   * *   service to enable the card(s) listed above.             * *

I had no trouble with putting a card in my B132L, but it seems to be
more forgiving of hardware.  It has a 5v PCI bus where the C160 is 3.3v.

I've tried two different Ethernet cards and also a USB card I had lying
around - every card I have that was keyed for 3.3v.

I've updated to the latest firmware with no change.

I know this is a little off topic for the list, but it's my guess that
not very many other people except Linux users are putting weird hardware
in their PARISC workstations.

Anyways, if anyone knows of ethernet cards that will work on a C160 - if
you have similar hardware and a success story - I would appreciate
hearing about it.

	Kurt.

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On 15/08/05, Kurt Fitzner <kfitzner@excelcia.org> wrote:
> I am trying to put an Ethernet card into my new (to me) C160 without any
> success.  Any time I put a PCI card in, the machine refused to boot and
> gives me the message:
>=20
>    *****
>    ***** Disabled the PCI USB card in slot 3.
>    *****
>    * *   An unsupported PCI I/O configuration has been detected. * *
>    * *   Contact your HP service representative for warranty     * *
>    * *   service to enable the card(s) listed above.             * *

Errm, I can't say for sure, but IIRC there was a time when HP thought
it is useful to just allow HP certified/supported PCI cards to run in
their workstations.
Perhaps someone else can elaborate on that topic?

> I had no trouble with putting a card in my B132L, but it seems to be
> more forgiving of hardware.  It has a 5v PCI bus where the C160 is 3.3v.
>=20
> I've tried two different Ethernet cards and also a USB card I had lying
> around - every card I have that was keyed for 3.3v.

Well, many cards are universal, ie. keyed for both 3.3v and 5v.

> I've updated to the latest firmware with no change.
>=20
> I know this is a little off topic for the list, but it's my guess that
> not very many other people except Linux users are putting weird hardware
> in their PARISC workstations.
>=20
> Anyways, if anyone knows of ethernet cards that will work on a C160 - if
> you have similar hardware and a success story - I would appreciate
> hearing about it.

I can't speak about C160, but in my C240 I was able to use a
DEC tulip and also a Intel EtherExpress PRO 100.
I didn't have so much luck with a noname ne2k and some 3com Vortex,
but it was about 3-4 years ago since I last tried ...
Anyway I think a DEC Tulip card should be your best bet.

   Max
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On 15/08/05, Kurt Fitzner <kfitzner@excelcia.org> wrote:
> I am trying to put an Ethernet card into my new (to me) C160 without any
> success.  Any time I put a PCI card in, the machine refused to boot and
> gives me the message:
>=20
>    *****
>    ***** Disabled the PCI USB card in slot 3.
>    *****
>    * *   An unsupported PCI I/O configuration has been detected. * *
>    * *   Contact your HP service representative for warranty     * *
>    * *   service to enable the card(s) listed above.             * *

BTW, are you really sure you don't have any PCI (UHCI/OHCI/EHCI) USB
card installed somewhere? It would be rather strange if it falsly
identifies your ethernet card as a USB card ...

   Max
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> On 15/08/05, Kurt Fitzner <kfitzner@excelcia.org> wrote:
>> I am trying to put an Ethernet card into my new (to me) C160 without any
>> success.  Any time I put a PCI card in, the machine refused to boot and
>> gives me the message:
>>
>>    *****
>>    ***** Disabled the PCI USB card in slot 3.
>>    *****
>>    * *   An unsupported PCI I/O configuration has been detected. * *
>>    * *   Contact your HP service representative for warranty     * *
>>    * *   service to enable the card(s) listed above.             * *
>
> Errm, I can't say for sure, but IIRC there was a time when HP thought
> it is useful to just allow HP certified/supported PCI cards to run in
> their workstations.
> Perhaps someone else can elaborate on that topic?
>
>> I had no trouble with putting a card in my B132L, but it seems to be
>> more forgiving of hardware.  It has a 5v PCI bus where the C160 is 3.3v.
>>
>> I've tried two different Ethernet cards and also a USB card I had lying
>> around - every card I have that was keyed for 3.3v.
>
> Well, many cards are universal, ie. keyed for both 3.3v and 5v.
>
>> I've updated to the latest firmware with no change.
>>
>> I know this is a little off topic for the list, but it's my guess that
>> not very many other people except Linux users are putting weird hardware
>> in their PARISC workstations.
>>
>> Anyways, if anyone knows of ethernet cards that will work on a C160 - if
>> you have similar hardware and a success story - I would appreciate
>> hearing about it.
>
> I can't speak about C160, but in my C240 I was able to use a
> DEC tulip and also a Intel EtherExpress PRO 100.
> I didn't have so much luck with a noname ne2k and some 3com Vortex,
> but it was about 3-4 years ago since I last tried ...
> Anyway I think a DEC Tulip card should be your best bet.
>
>    Max

I think HP did this due to bugs in the Dino PCI bridge. Certain revisions
have bugs that will quite likely corrupt data on cards that HP haven't
certified as working correctly (i.e. HP cards are known not to exercise
the bugs). Don't remember off the top of my head exactly which revisions
are affected, but if your B132L is actually a B132L+ it could well have
a newer, fixed, Dino rev. compared to the C160.

-Andy

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>>>>> "Andy" == Andy Walker <ajwalker@broadpark.no> writes:

Andy> I think HP did this due to bugs in the Dino PCI bridge. 

Yup.


Andy> Certain revisions have bugs that will quite likely corrupt data
Andy> on cards that HP haven't certified as working correctly (i.e. HP
Andy> cards are known not to exercise the bugs). 

Well.  The old rev. Dino does corrupt data (Actually, the HP errata
note is funny.  It states that Dino will cause corruption but *only*
when you do I/O through it.  Good thing I/O is not something you do on
a regular basis 8).

Anyway.  For a graphics card it's not a big deal whether a pixel on
the display gets corrupted.  And consequently - as far as I remember -
the firmware will reject anything but Visualize cards.

The solution is to find a new I/O daughterboard on ebay.  There's
probably a higher success rate in terms of getting a newer rev. Dino
if you get a board from a scrapped C180/C200/C240.  Join the exclusive
circle of Frankenbox owners!

-- 
Martin K. Petersen      http://mkp.net/
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Re: gsyprf11 and 2.6.13-rc3-pa1
Date: Tue, 16 Aug 2005 11:02:47 +0800
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Can somebody with a 32-bit machine try this slightly modified test case?
In the presence of a signal handler for SIGSEGV, the program will loop
segfaulting because there's not enough stack space left for the signal
handler. On an a500, this program just loops, but perhaps on a 32-bit
machine it crashes the machine if run long enough. Seems to suggest a
problem in our kernel entry/exit paths?

randolph

================================================================

#include <stdio.h>
#include <signal.h>
#include <stdlib.h>

char *stack_base_estimate;

static void sighandler(int sig)
{
        printf("Got signal %d\n", sig);
        exit(0);
}

void
recurse(void)
{
        char a[256];

        memset(a, '\0', sizeof(*a));
        printf("Estimating stack consumed 0x%lx\n",
               (unsigned long)(a - stack_base_estimate));
        recurse();
}

int
main(int argc, char *argv[])
{
        char b;

        signal(SIGSEGV, sighandler);

        stack_base_estimate = &b;
        printf("Estimating stack base at 0x%p\n", stack_base_estimate);
        recurse();
        return 0;
}

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Subject: Re: [parisc-linux] Re: gsyprf11 and 2.6.13-rc3-pa1
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> static void sighandler(int sig)
> {
>         printf("Got signal %d\n", sig);
>         exit(0);

I think you need to use _exit in a signal handler although this may
not be an issue when there is only one thread.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: gsyprf11 and 2.6.13-rc3-pa1
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> > static void sighandler(int sig)
> > {
> >         printf("Got signal %d\n", sig);
> >         exit(0);
> 
> I think you need to use _exit in a signal handler although this may
> not be an issue when there is only one thread.

GCC uses exit.  Either way, the kernel shouldn't hang.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: gsyprf11 and 2.6.13-rc3-pa1
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Xref: news.gmane.org gmane.linux.ports.parisc:23073

> > > static void sighandler(int sig)
> > > {
> > >         printf("Got signal %d\n", sig);
> > >         exit(0);
> > 
> > I think you need to use _exit in a signal handler although this may
> > not be an issue when there is only one thread.
> 
> GCC uses exit.  Either way, the kernel shouldn't hang.
> 
Randolph , Dave,

Eventhought it does:
on a b180 model runing the latest cvs 2.6.13-rc6-pa1 (compiled with debia=
n
stock gcc-4.0, as it's an unstable install but downgraded libc6 2.3.2), f=
oo
runs untils:
...
Estimating stack consumed 0x7fee40
Estimating stack consumed 0x7fef80
Estimating stack consumed 0x7ff0c0
=3D=3D=3D=3D<hang>=3D=3D=3D

The ping still responding but not anymore the console (nor other process
apparently)... no more heartbit/disk leds flashing; pressing TOC buton la=
unch
the reboot but what is bad: nothing was saved in piminfo (all 0 and No va=
lid
timestamp) :-(

If some other test will be helpfull: don't hesistate.

Joel=0A=0A---------------------------------------------------------------=
=0AA free anti-spam and anti-virus filter on all Scarlet mailboxes=0AMore=
 info on http://www.scarlet.be/

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From: Kurt Fitzner <kfitzner@excelcia.org>
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Subject: [parisc-linux] B132L outperforms C160 - 64-bit userland needed?
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Xref: news.gmane.org gmane.linux.ports.parisc:23074

In the interim until I can source an ISA/EISA fast ethernet card, I've
been playing with my new C160.  I decided to benchmark it and compare it
to my B132L.  To my surprise, when it came to integer operations, the
B132L outperforms the C160!

I benchmarked using nbench, which is a Linux/Unix port of Byte
magazine's ByteMark.  Full results from both machines are at the end of
this post.

Both machines were benchmarked using identical binaries compiled with:
-O3 -march=1.1 -mschedule=7300 -mfast-indirect-calls -mgas

Thinking that the scheduling and architecture might be slowing down the
C160, I recompiled it with:
-O3 -march=2.0 -mschedule=8000 -mfast-indirect-calls -mgas

When that produced even worse results, I tried -march=2.0 vs 1.1 and
-mschedule=8000 vs 7300 seperately.  Each one alone slows down the
benchmark and the effect is addititive.  It seems that in Linux, right
now at least, compiling with -march=2.0 or -mschedule=8000 is a Bad Thing.

If you look at the individual results, in most areas the C160 performs
about 20% better than the B132.  It's just that in a few areas, the C160
has absolutely dismal performance.  Numeric sorting and the assignment
algorithm were both notably slower on the C160.

With a clock speed 20% faster, I must admit that the C160's poor showing
was a dissappointment.  I'm wondering if this is because there isn't a
64-bit userland yet.  Is stepping down to 32-bit on the C160 hurting its
performance that badly?

I suppose (assuming I'm correct about the reason for the performance
drop) my options are to wait for 64-bit userland or to put HPUX on it.

Is there any way which someone can help the 64-bit userland effort who
is quite strong in system-level programming in general though weak in
Linux kernel programming specifically?  Is there a project web site for
this effort?

	Kurt


Phong (C160):
------------------------------------------------------------------
TEST                : Iterations/sec.  : Old Index   : New Index
                    :                  : Pentium 90* : AMD K6/233*
--------------------:------------------:-------------:------------
NUMERIC SORT        :           37.51  :       0.96  :       0.32
STRING SORT         :          5.0486  :       2.26  :       0.35
BITFIELD            :      1.6052e+07  :       2.75  :       0.58
FP EMULATION        :          8.4215  :       4.04  :       0.93
FOURIER             :          1102.1  :       1.25  :       0.70
ASSIGNMENT          :         0.59547  :       2.27  :       0.59
IDEA                :          115.34  :       1.76  :       0.52
HUFFMAN             :          89.382  :       2.48  :       0.79
NEURAL NET          :          1.6905  :       2.72  :       1.14
LU DECOMPOSITION    :          41.254  :       2.14  :       1.54
=======================ORIGINAL BYTEMARK RESULTS=======================
INTEGER INDEX       : 2.187
FLOATING-POINT INDEX: 1.938
Baseline: MSDOS P90, 256 KB L2-cache, Watcom* compiler 10.0
===========================LINUX DATA BELOW============================
CPU                 : Raven U 160 (9000/780/C160) 160MHz
L2 Cache            : 512 KB (WB, 0-way associative)
OS                  : Linux 2.6.10-pa11-phong-3
C compiler          : gcc version 3.3.5 (Debian 1:3.3.5-13)
libc                : ld-2.3.2.so
MEMORY INDEX        : 0.491
INTEGER INDEX       : 0.591
FLOATING-POINT INDEX: 1.075
Baseline: Linux AMD K6/233*, 512 KB L2-cache, gcc 2.7.2.3, libc-5.4.38
=======================================================================


Megabyte (B132L):
------------------------------------------------------------------
TEST                : Iterations/sec.  : Old Index   : New Index
                    :                  : Pentium 90* : AMD K6/233*
--------------------:------------------:-------------:------------
NUMERIC SORT        :          60.695  :       1.56  :       0.51
STRING SORT         :          3.3905  :       1.51  :       0.23
BITFIELD            :      1.1081e+07  :       1.90  :       0.40
FP EMULATION        :          6.0832  :       2.92  :       0.67
FOURIER             :          876.58  :       1.00  :       0.56
ASSIGNMENT          :         0.80283  :       3.05  :       0.79
IDEA                :          150.04  :       2.29  :       0.68
HUFFMAN             :          76.017  :       2.11  :       0.67
NEURAL NET          :          1.1334  :       1.82  :       0.77
LU DECOMPOSITION    :          41.733  :       2.16  :       1.56
=======================ORIGINAL BYTEMARK RESULTS=======================
INTEGER INDEX       : 2.121
FLOATING-POINT INDEX: 1.577
Baseline: MSDOS P90, 256 KB L2-cache, Watcom* compiler 10.0
===========================LINUX DATA BELOW============================
CPU                 : Merlin L2 132 (9000/778/B132L) 132MHz
Cache               : 64 KB (WB, 0-way associative)
OS                  : Linux 2.6.8.1-pa11-megabyte-20050720
C compiler          : gcc version 3.3.5 (Debian 1:3.3.5-13)
libc                : ld-2.3.2.so
MEMORY INDEX        : 0.419
INTEGER INDEX       : 0.630
FLOATING-POINT INDEX: 0.875
Baseline: Linux AMD K6/233*, 512 KB L2-cache, gcc 2.7.2.3, libc-5.4.38
=======================================================================

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Subject: Re: [parisc-linux] Re: gsyprf11 and 2.6.13-rc3-pa1
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Xref: news.gmane.org gmane.linux.ports.parisc:23075

> on a b180 model runing the latest cvs 2.6.13-rc6-pa1 (compiled with debian
> stock gcc-4.0, as it's an unstable install but downgraded libc6 2.3.2), foo
> runs untils:
> ...
> Estimating stack consumed 0x7fee40
> Estimating stack consumed 0x7fef80
> Estimating stack consumed 0x7ff0c0
> ====<hang>===
> 
> The ping still responding but not anymore the console (nor other process
> apparently)... no more heartbit/disk leds flashing; pressing TOC buton launch
> the reboot but what is bad: nothing was saved in piminfo (all 0 and No valid
> timestamp) :-(

Yup, this is the same as what others are seeing. It's definitely a
problem with infinitely looping signal handlers.

I'm not sure what's the "correct" behavior in this case. I recall now
that we saw a similar problem with expect where the signal handler was
recursing.

Is the kernel responsible for blocking SIGSEGV handlers that generate
SIGSEGV?

randolph

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Subject: Re: [parisc-linux] B132L outperforms C160 - 64-bit userland needed?
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On Tue August 16 2005 04:23, Kurt Fitzner wrote:
> In the interim until I can source an ISA/EISA fast ethernet card, I've
> been playing with my new C160.  I decided to benchmark it and compare it
> to my B132L.  To my surprise, when it came to integer operations, the
> B132L outperforms the C160!
> 
> I benchmarked using nbench, which is a Linux/Unix port of Byte
> magazine's ByteMark.  Full results from both machines are at the end of
> this post.
> 
> Both machines were benchmarked using identical binaries compiled with:
> -O3 -march=1.1 -mschedule=7300 -mfast-indirect-calls -mgas
> 
> Thinking that the scheduling and architecture might be slowing down the
> C160, I recompiled it with:
> -O3 -march=2.0 -mschedule=8000 -mfast-indirect-calls -mgas
> 
> When that produced even worse results, I tried -march=2.0 vs 1.1 and
> -mschedule=8000 vs 7300 seperately.  Each one alone slows down the
> benchmark and the effect is addititive.  It seems that in Linux, right
> now at least, compiling with -march=2.0 or -mschedule=8000 is a Bad Thing.
>
It would be interesting to see if this also holds with a newer GCC.
(3.4, 4.0, 4.1)

> 
> If you look at the individual results, in most areas the C160 performs
> about 20% better than the B132.  It's just that in a few areas, the C160
> has absolutely dismal performance.  Numeric sorting and the assignment
> algorithm were both notably slower on the C160.
> 
> With a clock speed 20% faster, I must admit that the C160's poor showing
> was a dissappointment.  I'm wondering if this is because there isn't a
> 64-bit userland yet.  Is stepping down to 32-bit on the C160 hurting its
> performance that badly?
> 
Try the same version kernel on both machines - you might just be seeing
the difference between 2.6.8 and 2.6.10. (or 32bit and 64bit kernels).

Also, what compiler was used to build the kernel.

Mike
> I suppose (assuming I'm correct about the reason for the performance
> drop) my options are to wait for 64-bit userland or to put HPUX on it.
> 
> Is there any way which someone can help the 64-bit userland effort who
> is quite strong in system-level programming in general though weak in
> Linux kernel programming specifically?  Is there a project web site for
> this effort?
> 
> 	Kurt
> 
> 
> Phong (C160):
> ------------------------------------------------------------------
> TEST                : Iterations/sec.  : Old Index   : New Index
>                     :                  : Pentium 90* : AMD K6/233*
> --------------------:------------------:-------------:------------
> NUMERIC SORT        :           37.51  :       0.96  :       0.32
> STRING SORT         :          5.0486  :       2.26  :       0.35
> BITFIELD            :      1.6052e+07  :       2.75  :       0.58
> FP EMULATION        :          8.4215  :       4.04  :       0.93
> FOURIER             :          1102.1  :       1.25  :       0.70
> ASSIGNMENT          :         0.59547  :       2.27  :       0.59
> IDEA                :          115.34  :       1.76  :       0.52
> HUFFMAN             :          89.382  :       2.48  :       0.79
> NEURAL NET          :          1.6905  :       2.72  :       1.14
> LU DECOMPOSITION    :          41.254  :       2.14  :       1.54
> =======================ORIGINAL BYTEMARK RESULTS=======================
> INTEGER INDEX       : 2.187
> FLOATING-POINT INDEX: 1.938
> Baseline: MSDOS P90, 256 KB L2-cache, Watcom* compiler 10.0
> ===========================LINUX DATA BELOW============================
> CPU                 : Raven U 160 (9000/780/C160) 160MHz
> L2 Cache            : 512 KB (WB, 0-way associative)
> OS                  : Linux 2.6.10-pa11-phong-3
> C compiler          : gcc version 3.3.5 (Debian 1:3.3.5-13)
> libc                : ld-2.3.2.so
> MEMORY INDEX        : 0.491
> INTEGER INDEX       : 0.591
> FLOATING-POINT INDEX: 1.075
> Baseline: Linux AMD K6/233*, 512 KB L2-cache, gcc 2.7.2.3, libc-5.4.38
> =======================================================================
> 
> 
> Megabyte (B132L):
> ------------------------------------------------------------------
> TEST                : Iterations/sec.  : Old Index   : New Index
>                     :                  : Pentium 90* : AMD K6/233*
> --------------------:------------------:-------------:------------
> NUMERIC SORT        :          60.695  :       1.56  :       0.51
> STRING SORT         :          3.3905  :       1.51  :       0.23
> BITFIELD            :      1.1081e+07  :       1.90  :       0.40
> FP EMULATION        :          6.0832  :       2.92  :       0.67
> FOURIER             :          876.58  :       1.00  :       0.56
> ASSIGNMENT          :         0.80283  :       3.05  :       0.79
> IDEA                :          150.04  :       2.29  :       0.68
> HUFFMAN             :          76.017  :       2.11  :       0.67
> NEURAL NET          :          1.1334  :       1.82  :       0.77
> LU DECOMPOSITION    :          41.733  :       2.16  :       1.56
> =======================ORIGINAL BYTEMARK RESULTS=======================
> INTEGER INDEX       : 2.121
> FLOATING-POINT INDEX: 1.577
> Baseline: MSDOS P90, 256 KB L2-cache, Watcom* compiler 10.0
> ===========================LINUX DATA BELOW============================
> CPU                 : Merlin L2 132 (9000/778/B132L) 132MHz
> Cache               : 64 KB (WB, 0-way associative)
> OS                  : Linux 2.6.8.1-pa11-megabyte-20050720
> C compiler          : gcc version 3.3.5 (Debian 1:3.3.5-13)
> libc                : ld-2.3.2.so
> MEMORY INDEX        : 0.419
> INTEGER INDEX       : 0.630
> FLOATING-POINT INDEX: 0.875
> Baseline: Linux AMD K6/233*, 512 KB L2-cache, gcc 2.7.2.3, libc-5.4.38
> =======================================================================
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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> I'm not sure what's the "correct" behavior in this case. I recall now
> that we saw a similar problem with expect where the signal handler was
> recursing.
> 
> Is the kernel responsible for blocking SIGSEGV handlers that generate
> SIGSEGV?

See http://www.opengroup.org/onlinepubs/009695399/functions/signal.html.

This is implementation defined.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> See http://www.opengroup.org/onlinepubs/009695399/functions/signal.html.
> 
> This is implementation defined.

I remember reading that, but does that mean hanging the system is ok? :-)

randolph
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On Tue August 16 2005 09:34, Randolph Chung wrote:
> > See http://www.opengroup.org/onlinepubs/009695399/functions/signal.html.
> > 
> > This is implementation defined.
> 
> I remember reading that, but does that mean hanging the system is ok? :-)
> 
The answer seems spread across several paragraphs...

If you get a signal while handling a signal, you can do a SIGDFL OR
block handling the new signal until the original signal is handled.
That applies to SIGSEGV also.

The paragraph listing SIGSEGV as a special case is preceded by:
"If and when the function returns..."

So, by my reading, if the SIGSEGV handler never returned -
then looping in the SIGSEGV handler could not happen.

Translation: Seems to be a design choice, if hanging the system
is considered to be the meaning of: "behavior is undefined"
which is reached if the SIGSEGV handler does return.

Mike
> randolph
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> parisc-linux@lists.parisc-linux.org
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> 
> 
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Subject: Re: [parisc-linux] Re: gsyprf11 and 2.6.13-rc3-pa1
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>>Is the kernel responsible for blocking SIGSEGV handlers that generate
>>SIGSEGV?
> 
> See http://www.opengroup.org/onlinepubs/009695399/functions/signal.html.
> 
> This is implementation defined.

James spotted where we were not doing the right thing when setting up a 
signal handler frame. I've checked in his suggested fix to 
2.6.13-rc6-pa2. I think it should solve the problem.

randolph
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Subject: Re: [parisc-linux] Re: gsyprf11 and 2.6.13-rc3-pa1
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> >>Is the kernel responsible for blocking SIGSEGV handlers that generate
> >>SIGSEGV?
> > 
> > See http://www.opengroup.org/onlinepubs/009695399/functions/signal.html.
> > 
> > This is implementation defined.
> 
> James spotted where we were not doing the right thing when setting up a 
> signal handler frame. I've checked in his suggested fix to 
> 2.6.13-rc6-pa2. I think it should solve the problem.

We also don't seem to be using force_sigsegv.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Michael S. Zick wrote:

>>When that produced even worse results, I tried -march=2.0 vs 1.1 and
>>-mschedule=8000 vs 7300 seperately.  Each one alone slows down the
>>benchmark and the effect is addititive.  It seems that in Linux, right
>>now at least, compiling with -march=2.0 or -mschedule=8000 is a Bad Thing.
>>
> 
> It would be interesting to see if this also holds with a newer GCC.
> (3.4, 4.0, 4.1)

I can't see how it would be different.  Isn't compiling for PA2.0/8000
in Linux tying of GCC's hands behind its back.  You're telling it you
want good code for a 64-bit CPU, but it can't produce 64-bit code.

Is there any real possibility that this is compiler-related and not
simply a 32 vs. 64 bit issue?  If there is a real chance of this, I'll
bite the bullet and actually test out newer GCC versions.

> Try the same version kernel on both machines - you might just be seeing
> the difference between 2.6.8 and 2.6.10. (or 32bit and 64bit kernels).

I've installed 2.6.8.1 on the C160 to match the B132L.  I'm seeing a 2%
increase in speed across the board with the different kernel.  I
attribute this to my having set the CPU to 7300 in the kernel settings.
 The speed increase is exactly consistent with the difference I see in
executables on my C160 when compiled with -march1.1/-mschedule=7300
rather than 2.0/8000.  The C160 still underperforms significantly when
compared to the B132L.

I have not yet compiled a 64-bit kernel for my C160.  All advice I have
read is that this is a complete waste of time since without a 64-bit
userland it will just make the kernel bigger and slower.  Is there
likely to be any benefit at all to a 64-bit kernel?

> Also, what compiler was used to build the kernel.

Same as used to build nBench, gcc 3.3.5 (Debian 1:3.3.5-13).

	Kurt.
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> > James spotted where we were not doing the right thing when setting up a 
> > signal handler frame. I've checked in his suggested fix to 
> > 2.6.13-rc6-pa2. I think it should solve the problem.
> 
> We also don't seem to be using force_sigsegv.

Doh, I should have looked at your change before mailing!

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] B132L outperforms C160 - 64-bit userland needed?
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> >>When that produced even worse results, I tried -march=2.0 vs 1.1 and
> >>-mschedule=8000 vs 7300 seperately.  Each one alone slows down the
> >>benchmark and the effect is addititive.  It seems that in Linux, right
> >>now at least, compiling with -march=2.0 or -mschedule=8000 is a Bad Thing.
> >>

In theory, -mschedule=8000 should only be used on machines with PA 2.0
processors (i.e., not the B132L).  It is tweaked to the number of execution
units, etc, in the PA 2.0 processor.  How much difference this makes in the
real world is not clear.  I haven't seen any numbers.  As far as the
models themselves, they haven't changed since they were added by Jeff
Law somewhere around GCC 3.0.  It would be interesting to see how they
compare on the same cpu, same os, etc.

As far PA 2.0 versus 1.1, the main differences affecting 32-bit code
are some new branch instructions.  There are also some new FP instructions
but these are somewhat compromised by linker bugs.  In non floating-point
code, I would expect the PA 2.0 features to make their presence felt
in code with large functions.

> > It would be interesting to see if this also holds with a newer GCC.
> > (3.4, 4.0, 4.1)

There have been a lot of optimization improvements in GCC since 3.3.
It would be useful to see how effective they are in real applications
and in benchmark performance.  As far as the PA backend goes, there
haven't been any major performance improvements added since 3.3.  The
changes mainly are bug fixes.

> I can't see how it would be different.  Isn't compiling for PA2.0/8000
> in Linux tying of GCC's hands behind its back.  You're telling it you
> want good code for a 64-bit CPU, but it can't produce 64-bit code.
> 
> Is there any real possibility that this is compiler-related and not
> simply a 32 vs. 64 bit issue?  If there is a real chance of this, I'll
> bite the bullet and actually test out newer GCC versions.

64-bit code isn't going to make your apps run faster.  There is more
overhead in data accesses in 64-bit code (i.e., they go through the DLT)
than in 32-bit apps.  Also, a lot more sign extensions are needed.  In
terms of a GCC build, the difference is about 15-20%.  The 64-bit tools
are less mature.  So generally, you only want to use 64-bit apps when
they can benefit from the larger address space.

> I have not yet compiled a 64-bit kernel for my C160.  All advice I have
> read is that this is a complete waste of time since without a 64-bit
> userland it will just make the kernel bigger and slower.  Is there
> likely to be any benefit at all to a 64-bit kernel?

I doubt it.  You only want to use a 64-bit kernel when you have a machine
with lots of memory.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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On Tue August 16 2005 20:32, John David Anglin wrote:
> > >>When that produced even worse results, I tried -march=2.0 vs 1.1 and
> > >>-mschedule=8000 vs 7300 seperately.  Each one alone slows down the
> > >>benchmark and the effect is addititive.  It seems that in Linux, right
> > >>now at least, compiling with -march=2.0 or -mschedule=8000 is a Bad Thing.
> > >>
> 
> In theory, -mschedule=8000 should only be used on machines with PA 2.0
> processors (i.e., not the B132L).  It is tweaked to the number of execution
> units, etc, in the PA 2.0 processor.  How much difference this makes in the
> real world is not clear.  I haven't seen any numbers.  As far as the
> models themselves, they haven't changed since they were added by Jeff
> Law somewhere around GCC 3.0.  It would be interesting to see how they
> compare on the same cpu, same os, etc.
>
One other suggestion.

Try running the Povray benchmark - It is compute intensive and long
enough running to turn other kernel activity into noise.

You should be able to just: apt-get povray 
But it could be that the benchmark is separately packaged.

I think Joel tried hppa-Povray - he might have information to share.

Mike
 
> As far PA 2.0 versus 1.1, the main differences affecting 32-bit code
> are some new branch instructions.  There are also some new FP instructions
> but these are somewhat compromised by linker bugs.  In non floating-point
> code, I would expect the PA 2.0 features to make their presence felt
> in code with large functions.
> 
> > > It would be interesting to see if this also holds with a newer GCC.
> > > (3.4, 4.0, 4.1)
> 
> There have been a lot of optimization improvements in GCC since 3.3.
> It would be useful to see how effective they are in real applications
> and in benchmark performance.  As far as the PA backend goes, there
> haven't been any major performance improvements added since 3.3.  The
> changes mainly are bug fixes.
> 
> > I can't see how it would be different.  Isn't compiling for PA2.0/8000
> > in Linux tying of GCC's hands behind its back.  You're telling it you
> > want good code for a 64-bit CPU, but it can't produce 64-bit code.
> > 
> > Is there any real possibility that this is compiler-related and not
> > simply a 32 vs. 64 bit issue?  If there is a real chance of this, I'll
> > bite the bullet and actually test out newer GCC versions.
> 
> 64-bit code isn't going to make your apps run faster.  There is more
> overhead in data accesses in 64-bit code (i.e., they go through the DLT)
> than in 32-bit apps.  Also, a lot more sign extensions are needed.  In
> terms of a GCC build, the difference is about 15-20%.  The 64-bit tools
> are less mature.  So generally, you only want to use 64-bit apps when
> they can benefit from the larger address space.
> 
> > I have not yet compiled a 64-bit kernel for my C160.  All advice I have
> > read is that this is a complete waste of time since without a 64-bit
> > userland it will just make the kernel bigger and slower.  Is there
> > likely to be any benefit at all to a 64-bit kernel?
> 
> I doubt it.  You only want to use a 64-bit kernel when you have a machine
> with lots of memory.
> 
> Dave
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Subject: Re: [parisc-linux] [Alsa-devel] [PATCH] Support for AD1889 PCI
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To: Clemens Ladisch <clemens@ladisch.de>
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On Fri, Aug 12, 2005 at 09:17:47AM +0200, Clemens Ladisch wrote:
> It should apply against both, but it seems somewhere some whitespaces
> got lost ...
> 
> Here you go again.

Sorry for taking so long to get back to you. Your patch appears to work
fine in OSS mode, but native ALSA on PA-RISC still seems broken. Thibaut
seems to point out that this is not the driver, but a more deep seated
problem, as the driver seems to function properly in native ALSA playback
mode on powerpc.

I'll keep the patch in my tree, and give it a few days of beating.

Cheers,
-- 
Kyle McMartin
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John David Anglin wrote:
>>>>When that produced even worse results, I tried -march=2.0 vs 1.1 and
>>>>-mschedule=8000 vs 7300 seperately.  Each one alone slows down the
>>>>benchmark and the effect is addititive.  It seems that in Linux, right
>>>>now at least, compiling with -march=2.0 or -mschedule=8000 is a Bad Thing.
>>>>
> 
> 
> In theory, -mschedule=8000 should only be used on machines with PA 2.0
> processors (i.e., not the B132L).

I must not have been clear.  Wanting to have as level a playing field as
possible for benchmarking, I fist used identical binaries for both the
PA 1.1 and PA 2.0 machines.  These binaries were build as
-march=1.1/-mschedule=7300.  When I first noticed that the B132L was
outperforming the C160, I then recompiled the C160 binaries as
-march=2.0/-mschedule=8000.  My thinking was that perhaps the 1.1/7300
binaries on the C160 were perhaps causing the poor results.  The
recompiled 2.0/8000 binaries had even /poorer/ results, on the order of
a consistent two percent reduction in performance over 1.1/7300.

> ...It is tweaked to the number of execution
> units, etc, in the PA 2.0 processor.  How much difference this makes in the
> real world is not clear.  I haven't seen any numbers.  As far as the
> models themselves, they haven't changed since they were added by Jeff
> Law somewhere around GCC 3.0.  It would be interesting to see how they
> compare on the same cpu, same os, etc.

In Linux 2.6.10-pa11 and 2.6.8.1-pa11 with a 32 bit kernel on a C160
(PA-8000 cpu)
 * -march=1.1 produces code that performs approximately one percent
faster than -march=2.0
 * -mschedule=7300 produces code that is approx. one percent faster than
-mschedule=8000
 * The two above are additive - 1.1/7300 is two percent faster than 2.0/8000
 * Code compiled as 1.1/7300 and also run on a C160 with its kernel
configured with the PA7300LC processor type (as opposed to configured as
PA8000) enjoys another ~2% speed boost that is additive.

So, to be completely clear, where the baseline is a C160, Linux
2.6.8.1-pa11 configured for PA8000 cpu and where the user binary is
compiled with -march=2.0 and -mschedule=8000:
- User binary compiled with -march=1.1 = +1% performance
- User binary compiled with -mschedule=8000 = +1% performance
- Kernel configured as PA7300LC = +2% performance

> As far PA 2.0 versus 1.1, the main differences affecting 32-bit code
> are some new branch instructions.  There are also some new FP instructions
> but these are somewhat compromised by linker bugs.  In non floating-point
> code, I would expect the PA 2.0 features to make their presence felt
> in code with large functions.

Is there anything in PA 2.0 that you would expect to cause poorer
performance in any circumstance when compared to PA 1.1?

> There have been a lot of optimization improvements in GCC since 3.3.
> It would be useful to see how effective they are in real applications
> and in benchmark performance.  As far as the PA backend goes, there
> haven't been any major performance improvements added since 3.3.  The
> changes mainly are bug fixes.

So, what I'm hearing is that I might expect to see better code across
the board with a post 3.3 compiler, but that there is unlikely to be a
change in what I am seeing with 1.1 vs 2.0, 7300 vs 8000?

> 64-bit code isn't going to make your apps run faster.  There is more
> overhead in data accesses in 64-bit code (i.e., they go through the DLT)
> than in 32-bit apps.  Also, a lot more sign extensions are needed.  In
> terms of a GCC build, the difference is about 15-20%.  The 64-bit tools
> are less mature.  So generally, you only want to use 64-bit apps when
> they can benefit from the larger address space.

I'm not strong on the PA architecture - I assumed on a 64 bit machine
that the data bus would be 64 bits wide.  Thus, I would have thought
that 64-bit compiled apps on such a machine would run at least as fast
as 32 bit ones, and be superior in some areas such as when they had to
deal with 64 bit values like file offsets.  If less bit-width is better,
shouldn't we all be going back to 6502? :)

In any case, if what I'm seeing isn't due to 32 vs 64 bit, then I am
completely baffled by what I'm seeing.  Why would a C160 running at a
20% faster clock speed, having eight times the cache, and a design that
should be superior in every sense run slower than B132L?  I'm not trying
to blame my machine's poor performance on anyone, but I must admit that
having read as much as I can on the C160 vs B132L that I can find no
explanation in the hardware.

	Kurt.
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Subject: [parisc-linux] CONFIG_PDC_NARROW leftover in sba_iommu.c
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While investigating why I couldn't get a 64 bit kernel to boot on my
machine, I discovered that there is a holdout use of the old
CONFIG_PDC_NARROW config option.

It occurs in drivers/parisc/sba_iommu.c, line 108.

I'm not sure if this is in any way critical or not.

	Kurt.
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] B132L outperforms C160 - 64-bit userland needed?
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On Tue, Aug 16, 2005 at 03:23:28AM -0600, Kurt Fitzner wrote:
> To my surprise, when it came to integer operations, the
> B132L outperforms the C160!

Thanks for posting the results...looks like fun!

....
> If you look at the individual results, in most areas the C160 performs
> about 20% better than the B132.  It's just that in a few areas, the C160
> has absolutely dismal performance.  Numeric sorting and the assignment
> algorithm were both notably slower on the C160.

Could these workloads be thrashing memory or cache?

Anyone know if the C160 has slower memory latency since the Memory
controller is on the MMU and not directly attached to the runway bus?

> With a clock speed 20% faster, I must admit that the C160's poor showing
> was a dissappointment.  I'm wondering if this is because there isn't a
> 64-bit userland yet.  Is stepping down to 32-bit on the C160 hurting its
> performance that badly?

It really depends on what the tests are doing.
Can you characterize the tests you care about better?

You might also investigate why NEURAL NET test is so much
faster on C160: 1.6905 (C160) vs 1.1334 (B132L) 
That's much more than clock speed difference.
I suspect it's a cache friendly algorithm.

> I suppose (assuming I'm correct about the reason for the performance
> drop) my options are to wait for 64-bit userland or to put HPUX on it.

HPUX has a very good parisc compiler. It's possible recent gcc is
approaching the acc performance in most cases, but *alot* of tuning
went into acc and PBO (Profile Based Optimization) is still the
easiest way to get nearly optimal performance for any program.

If performance on a C160 is that important, my advice is to dump
both boxes and buy any Pentium M (1.x Ghz) laptop :^). But that would
be boring... :^P


> Is there any way which someone can help the 64-bit userland effort who
> is quite strong in system-level programming in general though weak in
> Linux kernel programming specifically?  Is there a project web site for
> this effort?

Just this mailing list. Carlos O'Donell is occasionally hacking at it.
Sounds like you might be able to help him.

thanks again,
grant
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Subject: Re: [parisc-linux] B132L outperforms C160 - 64-bit userland needed?
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On Tue, Aug 16, 2005 at 09:43:51PM -0600, Kurt Fitzner wrote:
> > As far PA 2.0 versus 1.1, the main differences affecting 32-bit code
> > are some new branch instructions.  There are also some new FP instructions
> > but these are somewhat compromised by linker bugs.  In non floating-point
> > code, I would expect the PA 2.0 features to make their presence felt
> > in code with large functions.
> 
> Is there anything in PA 2.0 that you would expect to cause poorer
> performance in any circumstance when compared to PA 1.1?

No - PA2.0 HW will in general perform better.
I agree it's odd that it doesn't.
And it may not be true for HPUX acc compiler or other gcc versions.

> > 64-bit code isn't going to make your apps run faster.  There is more
> > overhead in data accesses in 64-bit code (i.e., they go through the DLT)
> > than in 32-bit apps.  Also, a lot more sign extensions are needed.  In
> > terms of a GCC build, the difference is about 15-20%.  The 64-bit tools
> > are less mature.  So generally, you only want to use 64-bit apps when
> > they can benefit from the larger address space.
> 
> I'm not strong on the PA architecture - I assumed on a 64 bit machine
> that the data bus would be 64 bits wide.

It's not. Compare "Runway" vs "GSC+" bus on URL below.

> Thus, I would have thought
> that 64-bit compiled apps on such a machine would run at least as fast
> as 32 bit ones, and be superior in some areas such as when they had to
> deal with 64 bit values like file offsets.  If less bit-width is better,
> shouldn't we all be going back to 6502? :)

No. What Dave didn't mention (but implied) was that data structures
get bigger (64 bit vs 32-bit for the same field) and thus require
more cachelines for the same data structure. Note that the CPU loads
*cachelines* from memory and not individual pointers or fields.
And thus must potentially load *more* cachelines when running 64-bit
mode than when running 32-bit (narrow) mode apps.

> In any case, if what I'm seeing isn't due to 32 vs 64 bit, then I am
> completely baffled by what I'm seeing.  Why would a C160 running at a
> 20% faster clock speed, having eight times the cache, and a design that
> should be superior in every sense run slower than B132L?

chipset was designed with different tradeoffs. C160 can take 1.5 or 2GB
of RAM. B132L maxes out at 768MB (and that might not even be supported).

> I'm not trying
> to blame my machine's poor performance on anyone, but I must admit that
> having read as much as I can on the C160 vs B132L that I can find no
> explanation in the hardware.

Try http://www.openpa.net/index.html
(That's the "The OpenPA Project" off the www.parisc-linux.org Nav Bar.)

The chipsets in the two boxes are very different.
It definitely a difference in the system, not just the CPU.

grant
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On Tue, Aug 16, 2005 at 11:31:25PM -0600, Kurt Fitzner wrote:
> While investigating why I couldn't get a 64 bit kernel to boot on my
> machine, I discovered that there is a holdout use of the old
> CONFIG_PDC_NARROW config option.
> 
> It occurs in drivers/parisc/sba_iommu.c, line 108.

Thanks for pointing that out. I'll see if I can clean that up.


> I'm not sure if this is in any way critical or not.

It's not. C160 will need ccio driver, not sba driver.

grant
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Subject: Re: [parisc-linux] [Alsa-devel] [PATCH] Support for AD1889 PCI
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Hi

quick reply from vacation as there are a few things i'd like to
comment upon.

Clemens Ladisch wrote:

> > I don't actually have this hardware :-), but the docs don't
mention
> > any dependency between the count registers (BC, CC) and the
interrupt
> > count registers (IC, IB).
> >
> > So wouldn't it be possible to put the ALSA buffer size into the
count
> > registers and the ALSA period size into the interrupt count
registers?

yes it would be possible, i believe.

> > This would make the interrupt handler much simpler, as it wouldn't
> > have to reprogram any registers.  And it would solve the problem
that
> > the DMA accesses for one period go beyond the buffer when the
number
> > of periods per buffer is not an integer.

correct, this was something i was planning on trying at some point,
thanks for beating me to it ;)

> ... something like this (please test):

your suggestion is good, but your patch does more than just
implementing, and there are a few things I'm not quite comfortable
with.

> Index: alsa/alsa-driver/pci/ad1889.h
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> --- alsa.orig/alsa-driver/pci/ad1889.h	2005-08-04 17:56:50.000000000
+0200
> +++ alsa/alsa-driver/pci/ad1889.h	2005-08-11 11:54:38.000000000
+0200
> @@ -172,13 +172,6 @@
>  #define AD_ADC_STATE	1
>  #define AD_MAX_STATES	2
>=20
> -/* "<ggg> T-Bone: parisc IOMMU can start DMA at any address.
> -   But the IOMMU can only map at page size granularity."
> -   This affects in particular .period_bytes_min */
> -#define BUF_SIZE        PAGE_SIZE
> -#define MAX_BUFS        32
> -#define DMA_SIZE	(MAX_BUFS*BUF_SIZE)

don't remove these defines please, i'd rather have every constants
defined in the header file. Personal taste... Besides, the comment is
very relevant to PA-RISC architecture, where no matter what the value
is, the minimum allocated space will always be at page size
granularity.


> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> --- alsa.orig/alsa-driver/pci/ad1889.c	2005-08-11 10:46:42.000000000
+0200
> +++ alsa/alsa-driver/pci/ad1889.c	2005-08-11 12:21:21.000000000
+0200
> @@ -87,15 +87,11 @@ MODULE_PARM_DESC(ac97_quirk, "AC'97 work
>  /* let's use the global sound debug interfaces */
>  #define ad1889_debug(fmt, arg...) snd_printd(KERN_DEBUG fmt, ##
arg)
>=20
> -/* keep track of each hw register */
> +/* keep track of some hw registers */
>  struct ad1889_register_state {
>  	u16 reg;	/* reg setup */
>  	u32 addr;	/* dma base address */
> -	u16 rate;	/* sample rate */
> -	unsigned long pos;	/* last recorded DMA buffer position */
> -	unsigned long buf;	/* period # */
>  	unsigned long size;	/* DMA buffer size */
> -	unsigned long count;	/* period size, aka nb bytes sent in the
current DMA transfer */
>  };
>=20
>  struct snd_ad1889 {
> @@ -118,13 +114,6 @@ struct snd_ad1889 {
>  	struct ad1889_register_state wave;
>  	struct ad1889_register_state ramc;
>=20
> -	struct {
> -		unsigned long wav_intr;
> -		unsigned long adc_intr;
> -		unsigned long syn_intr;
> -		unsigned long res_intr;
> -	} stats;
> -
>  	spinlock_t lock;
>  };

reading the patch through webmail doesn't help a lot getting a grasp
of its whole but i wonder if we could still find some debugging
purposes for these values. Remember this driver is work in progress ;)

> @@ -172,22 +161,46 @@ ad1889_mute(struct snd_ad1889 *chip)
>  }
>=20
>  static inline void
> -ad1889_load_adc_count(struct snd_ad1889 *chip, u32 count)
> +ad1889_load_adc_buffer_address(struct snd_ad1889 *chip, u32
address)
> +{
> +	ad1889_writel(chip, AD_DMA_ADCBA, address);
> +	ad1889_writel(chip, AD_DMA_ADCCA, address);
> +}
> +
> +static inline void
> +ad1889_load_adc_buffer_count(struct snd_ad1889 *chip, u32 count)
>  {
>  	ad1889_writel(chip, AD_DMA_ADCBC, count);
>  	ad1889_writel(chip, AD_DMA_ADCCC, count);
> +}
> +
> +static inline void
> +ad1889_load_adc_interrupt_count(struct snd_ad1889 *chip, u32 count)
> +{
>  	ad1889_writel(chip, AD_DMA_ADCIB, count);
>  	ad1889_writel(chip, AD_DMA_ADCIC, count);
> -}
> +}
> +
> +static inline void
> +ad1889_load_wave_buffer_address(struct snd_ad1889 *chip, u32
address)
> +{
> +	ad1889_writel(chip, AD_DMA_WAVBA, address);
> +	ad1889_writel(chip, AD_DMA_WAVCA, address);
> +}

ok i had removed these because i felt they were just bloating the file
and were sparsely used, but ok, it's nicer that way =3D)

>  		/* flush */
>  		ad1889_readw(chip, AD_DMA_ADC);
> @@ -290,11 +303,11 @@ static snd_pcm_hardware_t snd_ad1889_pla
>  	.rate_max =3D 48000,
>  	.channels_min =3D 1,
>  	.channels_max =3D 2,
> -	.buffer_bytes_max =3D DMA_SIZE,	/* max DMA buffer size in bytes */
> -	.period_bytes_min =3D BUF_SIZE,	/* min size of period in bytes */
> -	.period_bytes_max =3D DMA_SIZE,	/* max size of period in bytes */
> -	.periods_min =3D 1,		/* min nb of periods in buffer */
> -	.periods_max =3D MAX_BUFS,
> +	.buffer_bytes_max =3D 256 * 1024,
> +	.period_bytes_min =3D 32,
> +	.period_bytes_max =3D 128 * 1024,
> +	.periods_min =3D 2,
> +	.periods_max =3D 256,
>  	/*.fifo_size =3D 0,*/
>  };

see the first comment .

> @@ -741,7 +671,7 @@ snd_ad1889_pcm_init(struct snd_ad1889 *c
>=20
>  	err =3D snd_pcm_lib_preallocate_pages_for_all(pcm,
SNDRV_DMA_TYPE_DEV,
>  						snd_dma_pci_data(chip->pci),
> -						DMA_SIZE, DMA_SIZE);
> +						128 * 1024, 256 * 1024);

again :)


This looks mostly good to me though I lack time to test and review it
more thoroughly. Hopefully I should be back later this month to give a
better look at it. I'd like to hear from Kyle as well.

Thanks for submitting this anyway.

T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [parisc-linux] [Alsa-devel] [PATCH] Support for AD1889 PCI
	Soundchip
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Kyle McMartin wrote:
> Your patch appears to work fine in OSS mode, but native ALSA on
> PA-RISC still seems broken.

The biggest difference may be that OSS uses power-of-two period and
buffer sizes.

Does it work with "aplay --period-size=1024 --buffer-size=8192 ..."?


Regards,
Clemens

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Subject: Re: [parisc-linux] B132L outperforms C160 - 64-bit userland needed?
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> > ...It is tweaked to the number of execution
> > units, etc, in the PA 2.0 processor.  How much difference this makes in the
> > real world is not clear.  I haven't seen any numbers.  As far as the
> > models themselves, they haven't changed since they were added by Jeff
> > Law somewhere around GCC 3.0.  It would be interesting to see how they
> > compare on the same cpu, same os, etc.
> 
> In Linux 2.6.10-pa11 and 2.6.8.1-pa11 with a 32 bit kernel on a C160
> (PA-8000 cpu)
>  * -march=1.1 produces code that performs approximately one percent
> faster than -march=2.0
>  * -mschedule=7300 produces code that is approx. one percent faster than
> -mschedule=8000
>  * The two above are additive - 1.1/7300 is two percent faster than 2.0/8000
>  * Code compiled as 1.1/7300 and also run on a C160 with its kernel
> configured with the PA7300LC processor type (as opposed to configured as
> PA8000) enjoys another ~2% speed boost that is additive.
> 
> So, to be completely clear, where the baseline is a C160, Linux
> 2.6.8.1-pa11 configured for PA8000 cpu and where the user binary is
> compiled with -march=2.0 and -mschedule=8000:
> - User binary compiled with -march=1.1 = +1% performance
> - User binary compiled with -mschedule=8000 = +1% performance
> - Kernel configured as PA7300LC = +2% performance
> 
> > As far PA 2.0 versus 1.1, the main differences affecting 32-bit code
> > are some new branch instructions.  There are also some new FP instructions
> > but these are somewhat compromised by linker bugs.  In non floating-point
> > code, I would expect the PA 2.0 features to make their presence felt
> > in code with large functions.
> 
> Is there anything in PA 2.0 that you would expect to cause poorer
> performance in any circumstance when compared to PA 1.1?

The only thing that comes to mind is that some PA 2.0 floating-point
instructions require assist from the kernel.  It might be beneficial
to avoid these exceptions.

The numbers suggest that there may be issues with PA 8000 scheduling
and PA 2.0 code generation, but I think more testing is needed.  It
would very useful if the actual problem could be identified.

> > There have been a lot of optimization improvements in GCC since 3.3.
> > It would be useful to see how effective they are in real applications
> > and in benchmark performance.  As far as the PA backend goes, there
> > haven't been any major performance improvements added since 3.3.  The
> > changes mainly are bug fixes.
> 
> So, what I'm hearing is that I might expect to see better code across
> the board with a post 3.3 compiler, but that there is unlikely to be a
> change in what I am seeing with 1.1 vs 2.0, 7300 vs 8000?

That's the current situation.  There's certainly improvements
that could be made to the PA backend in GCC.  Some issues are:

1) Long offsets in PA 2.0 floating-point loads and stores.  This is
   a 32-bit linker bug.

2) The PA has many integer conditions that aren't exploited.  If these
   could be exploited, we might save an insn in some loops.  This might
   yield a significant performance increase in some loops.

3) We need to look at improving the load sequence for self data when
   generating PIC code.  Currently, I believe that we always load data 
   through the DLT.  This requires three instructions, with two being
   memory accesses.  For self data, this can be shortened to two insns
   and one memory access.  When self data can be accessed using a 16-bit
   offset, data can be accessed in one memory access.  So, it might be
   useful to have a code generation option for tiny data.

4) There have been reports that utilizing the left/right addressibility
   of the floating-point registers in 32-bit code causes unnecessary
   processor stalls.

> > 64-bit code isn't going to make your apps run faster.  There is more
> > overhead in data accesses in 64-bit code (i.e., they go through the DLT)
> > than in 32-bit apps.  Also, a lot more sign extensions are needed.  In
> > terms of a GCC build, the difference is about 15-20%.  The 64-bit tools
> > are less mature.  So generally, you only want to use 64-bit apps when
> > they can benefit from the larger address space.
> 
> I'm not strong on the PA architecture - I assumed on a 64 bit machine
> that the data bus would be 64 bits wide.  Thus, I would have thought
> that 64-bit compiled apps on such a machine would run at least as fast
> as 32 bit ones, and be superior in some areas such as when they had to
> deal with 64 bit values like file offsets.  If less bit-width is better,
> shouldn't we all be going back to 6502? :)

That's true.  However, there's only a benefit when an application uses
a lot of 64-bit data, and/or benefits from the 64-bit address space.
Integer applications still typically use a lot of 32-bit signed integers
for saving space and portability.  When the PA does an 32-bit load in
wide mode, the value is zero extended.  However, in many cases the value
needs to be sign extended.  Thus, in many cases you pay a penalty when
64-bit registers are needed.

> In any case, if what I'm seeing isn't due to 32 vs 64 bit, then I am
> completely baffled by what I'm seeing.  Why would a C160 running at a
> 20% faster clock speed, having eight times the cache, and a design that
> should be superior in every sense run slower than B132L?  I'm not trying
> to blame my machine's poor performance on anyone, but I must admit that
> having read as much as I can on the C160 vs B132L that I can find no
> explanation in the hardware.

I really don't know.  You should be able to run PA 1.1 code for the
B132L on the C160.  If the same code runs slower on the C160, I would
first suspect that it's due to a difference in configuration (disks,
graphics, etc).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Grant Grundler wrote:

> If performance on a C160 is that important, my advice is to dump
> both boxes and buy any Pentium M (1.x Ghz) laptop :^). But that would
> be boring... :^P

Boring indeed. :)

Actually, my thought is that my little C160 may be simply shedding light
on a problem that's more global.  The C160 is the slowest PA2.0 machine
made.  It's one of the few machines where a PA2.0 CPU is in the same
speed range as PA1.1 CPUs.

What I'm wondering is that if a C160 is performing at the level of a
B132L then could perhaps ALL PA2.0 machines be underperforming?  It
could be just that my C160 is one of the few machines that was slow
enough anyway that it raised a red flag.  If that's the case and
something minor-ish is making everyone's PA2.0 machines underperform, it
may be something worth looking into.

Now, A doesn't necarily HAVE to follow B here, but I don't think it's a
totally unreasonable suspicion.  I may be chasing my tail, but at least
it's something to start with to help me learn the ropes.

	Kurt.
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [parisc-linux] B132L outperforms C160 - 64-bit userland needed?
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On Wed, Aug 17, 2005 at 12:42:06PM -0600, Kurt Fitzner wrote:
> Now, A doesn't necarily HAVE to follow B here, but I don't think it's a
> totally unreasonable suspicion.  I may be chasing my tail, but at least
> it's something to start with to help me learn the ropes.
> 

Well, seeing as I doubt we'll ever see any PA2.0 CPU ERS (or even 7200?)
then I don't really know what you want to change.

Cheers,
-- 
Kyle McMartin
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From: Andrew Sharp <andy@netfall.com>
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Subject: Re: [parisc-linux] B132L outperforms C160 - 64-bit userland needed?
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On Wed, Aug 17, 2005 at 12:42:06PM -0600, Kurt Fitzner wrote:
> Grant Grundler wrote:
> 
> > If performance on a C160 is that important, my advice is to dump
> > both boxes and buy any Pentium M (1.x Ghz) laptop :^). But that would
> > be boring... :^P
> 
> Boring indeed. :)
> 
> Actually, my thought is that my little C160 may be simply shedding light
> on a problem that's more global.  The C160 is the slowest PA2.0 machine
> made.  It's one of the few machines where a PA2.0 CPU is in the same
> speed range as PA1.1 CPUs.

It seems like you're answering your own question here.  I'm an
hppa-ignoramus, but the thing that sticks out the most of all this is that
the machines aren't that different in clock rate, but are that different
in cache size.  So stop ignoring that difference.  Cache thrashing is
a real, and sad, international problem.  Take those benchmarks that
produce slower results on a P4/2MB cache processor than they do on a
P4/512KB processor.  Same motherboard, OS, benchmark.  Only difference,
4x bigger cache.  If the processor is spending more time loading cache
lines, it's spending less time computating.  Cache systems are designed to
improve the performance of general computing tasks, and many benchmarks
fall outside that realm.  What's interesting is that some processors
have caches so big that these benchmarks do still fit inside them (8MB,
16MB, etc) and those processors look really good on those benchmarks
(pucker up your lips and say "SPEC"), compared to cheaper, but really
much faster, processors.

And as for the gcc compiler switch differences, it seems that maybe
the 3.3.5 or whatever just isn't that great when it comes to 2.0/8000
optimizations.  Not really a shocker, but good to know, as it makes the
case for taking a similar look at 4.0 and 4.1 performance.  Mayhaps there
is still time to put some changes into gcc 4.x before a final version is
nailed down for etch or ?

I must be getting bored by pentiums.  What's an old, dual
processor parisc/2.0 machine go for on ebay these days?  ~:^)

a

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Subject: Re: [parisc-linux] B132L outperforms C160 - 64-bit userland needed?
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On Wed, Aug 17, 2005 at 12:19:13AM -0600, Grant Grundler wrote:
> > Is there any way which someone can help the 64-bit userland effort who
> > is quite strong in system-level programming in general though weak in
> > Linux kernel programming specifically?  Is there a project web site for
> > this effort?
> 
> Just this mailing list. Carlos O'Donell is occasionally hacking at it.
> Sounds like you might be able to help him.

http://wiki.parisc-linux.org/userspace64

c.

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Subject: Re: [parisc-linux] B132L outperforms C160 - 64-bit userland needed?
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Andrew Sharp wrote:
> So stop ignoring that difference.  Cache thrashing is
> a real, and sad, international problem.  Take those benchmarks that
> produce slower results on a P4/2MB cache processor than they do on a
> P4/512KB processor.  Same motherboard, OS, benchmark.  Only difference,
> 4x bigger cache.  If the processor is spending more time loading cache
> lines, it's spending less time computating.  Cache systems are designed to
> improve the performance of general computing tasks, and many benchmarks
> fall outside that realm.

Andrew Sharp wrote:

Ok, I bit the bullet.  I took an image of the hard drive to restore
later, and installed HPUX.  I then obtained gcc 3.4.3 from the HPUX
software porting archive and recompiled the benchmark with that.  Raw
data is at the end.

Next off, for nbench running on a C160/HPUX I see a memory throughput
increase of 2.67X, integer calc increase of 1.4X, and floating point
increase of 2.24X when compared to the C160/Linux.

The data show exactly the sort of performance increase that I originally
expected to see when comparing a B132L and C160.  Strongly improved
integer and vastly improved memory performance.

The performance issue on my C160/Linux was not due cache line
loading/thrashing.  It's not due to slower memory, nor due to some odd
conflaguration of C160 architecture changes and an old benchmark
program.  I am convinced that there is some problem in Linux - probably
some otherwise minor thing.  Whatever it is, it's sucking performance
from PA8000 systems - and perhaps other PA8x00 ones.

What really locked it in for me that it's an OS issue, aside from the
dramatic results below, is what happened when I changed optimization
switches in HPUX.  I see the exact same 2% drop in performance when I go
from binaries compiled as 1.1/7300 to 2.0/8000 that I saw in Linux.
Same compiler on both OSes producing code that reacts exactly the same
way when optimizations are changed.

I'm convinced - how can I convince the group?  I'm quite willing to give
ssh access to my machines for the results to be verified.  I should be
able to swap between HPUX/Linux fairly quickly now that I have images of
both.

	Kurt.

p.s.  I installed HPUX in 64-bit mode.  Which, so I'm told, should have
decreased my performance.  I'd like to get my C160 running Linux in
64-bit mode, but I can't. :(


------------------------------------------------------------------
TEST                : Iterations/sec.  : Old Index   : New Index
                    :                  : Pentium 90* : AMD K6/233*
--------------------:------------------:-------------:------------
NUMERIC SORT        :           99.68  :       2.56  :       0.84
STRING SORT         :          14.104  :       6.30  :       0.98
BITFIELD            :      2.1599e+07  :       3.70  :       0.77
FP EMULATION        :          8.8339  :       4.24  :       0.98
FOURIER             :          2660.2  :       3.03  :       1.70
ASSIGNMENT          :          1.8832  :       7.17  :       1.86
IDEA                :          116.73  :       1.79  :       0.53
HUFFMAN             :           121.4  :       3.37  :       1.08
NEURAL NET          :            2.81  :       4.51  :       1.90
LU DECOMPOSITION    :           116.6  :       6.04  :       4.36
==================================================================
OS                  : HP-UX B.11.11
C compiler          : gcc version 3.4.3
MEMORY INDEX        : 1.120
INTEGER INDEX       : 0.827
FLOATING-POINT INDEX: 2.414
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On Wed, Aug 17, 2005 at 11:27:24PM -0600, Kurt Fitzner wrote:
> p.s.  I installed HPUX in 64-bit mode.  Which, so I'm told, should have
> decreased my performance.  I'd like to get my C160 running Linux in
> 64-bit mode, but I can't. :(

Sure you can. recent 64-bit kernels will boot on C160.
It's just not an obvious win in most cases.

I need to think about your other comments.
parisc-linux is less than optimal for cache behavior.
Especially kernels that predate 2.6.10-ish timeframe where
James Bottomley fixed up some of the worst offenses.

But if it's an OS problem (it could be), running lmbench
on both HPUX and parisc-linux might shed light on where
the issue is.

thanks for posting the HPUX NBench results.

grant
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Subject: Re: [parisc-linux] B132L outperforms C160 - 64-bit userland needed?
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> On Wed, Aug 17, 2005 at 11:27:24PM -0600, Kurt Fitzner wrote:
> > p.s.  I installed HPUX in 64-bit mode.  Which, so I'm told, should ha=
ve
> > decreased my performance.  I'd like to get my C160 running Linux in
> > 64-bit mode, but I can't. :(
> 
> Sure you can. recent 64-bit kernels will boot on C160.
> It's just not an obvious win in most cases.
> 
mmm, is this system need ccio-dma and zalon:ncr53c720 drivers as does my =
d380?

[...]
> 
> But if it's an OS problem (it could be), running lmbench
> on both HPUX and parisc-linux might shed light on where
> the issue is.
> 
On my d380 those two drivers doesn't seems to be 64bit ready :_( (2.6.12-=
pa2)
(I expect to find simple instrumentation tools like IKD (but not maintain=
 for
2.6) or LTT to help me to figure out if some race condition (as I suspect=
)
occures or not)

Thanks,
    Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:23102

Hello !

At this point I am using 2.4.22-pa17 lifimage from 2003 to boot my pa-risc 
over network.
I am wondering if there is a newer version of this , which includes sarge 
and maybe the 2.6 kernel tree ?

Regards, Jan

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From: Clemens Ladisch <clemens@ladisch.de>
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Subject: Re: [parisc-linux] [Alsa-devel] [PATCH] Support for AD1889 PCI
	Soundchip
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Thibaut VARENE wrote:
> > -/* "<ggg> T-Bone: parisc IOMMU can start DMA at any address.
> > -   But the IOMMU can only map at page size granularity."
> > -   This affects in particular .period_bytes_min */
> > -#define BUF_SIZE        PAGE_SIZE
> > -#define MAX_BUFS        32
> > -#define DMA_SIZE	(MAX_BUFS*BUF_SIZE)
>
> don't remove these defines please, i'd rather have every constants
> defined in the header file.

I removed them because it wouldn't make sense to derive the buffer
size from the period size in the patched driver.  I used some more or
less random values because these values aren't anymore restricted by
the chip's constraints.

> Besides, the comment is very relevant to PA-RISC architecture,
> where no matter what the value is, the minimum allocated space
> will always be at page size granularity.

Most IOMMUs have this restriction.  ALSA's PCM buffer is always page
aligned, so drivers that do DMA over the entire buffer just don't
care.

> > -/* keep track of each hw register */
> > +/* keep track of some hw registers */
> >  struct ad1889_register_state {
> >  	u16 reg;	/* reg setup */
> >  	u32 addr;	/* dma base address */
> > -	u16 rate;	/* sample rate */
> > -	unsigned long pos;	/* last recorded DMA buffer position */
> > -	unsigned long buf;	/* period # */
> >  	unsigned long size;	/* DMA buffer size */
> > -	unsigned long count;	/* period size, aka nb bytes sent in the current DMA transfer */
>
> reading the patch through webmail doesn't help a lot getting a grasp
> of its whole but i wonder if we could still find some debugging
> purposes for these values. Remember this driver is work in progress ;)

Those fields just aren't used anymore; anything interesting is in the
chip's registers.

> > +ad1889_load_adc_buffer_address(struct snd_ad1889 *chip, u32 address)
> > +{
> > +	ad1889_writel(chip, AD_DMA_ADCBA, address);
> > +	ad1889_writel(chip, AD_DMA_ADCCA, address);
> > +}
> > ...
>
> ok i had removed these because i felt they were just bloating the file
> and were sparsely used, but ok, it's nicer that way =)

I added them only for documentation purposes; those AD_DMA_ADCABC
symbols aren't too easy to distinguish ...


Attached is a new patch with symbols for buffer size etc.


Regards,
Clemens

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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Latest 2.6.13-rc6-pa2 test pr :_(
Date: Thu, 18 Aug 2005 18:01:43 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:23104

Hello all,

The good stuff first.

I rebuild glibc 2.3.5-3 with latest gcc-4.0-4.0.1-5 (as debian named? act=
ualy
4.0.2 20050816) and all seems to work fine: i.e. the dump of the
libpthread-0.10.so shows that the pb point out by Randoplh was well fixed=
 by
Dave's patch :-).

I so install it on a chroot disk to rebuild first the latest 2.6.13-rc6-p=
a2
cvs 20050817:
    no more segv :-).

I also install this kernel of this chroot disk and reboot it quiet nicely=
 my
b180 :-).

I run first Randolph test which end well now by a segv :-)

And finaly launch my stress test (do you remember the 2 loops) which stil=
l
runing (now for about 5h without pb ;^).)

The bad news now.

I also install the latest gcc-4.0-4.0.1-5 on my unstable b2k install to
rebuild the same 32bit kernel (2.6.13-rc6-pa2 cvs 20050817) but saving li=
bc6
2.3.2.ds1-22 (excepted this the 2 systems are debian unstable update at t=
he
same level this morning).
Well the system reboot fine but the same test as describe above make agai=
n the
system hang after only 45min of test ;_(

Anyway this time I could grab a piminfo with a TOC:
[I discard the HPMC because IIA Offset =3D 0x00000000000172b8 which is no=
t usable]
-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
00-03   0000000000000000  00000000104eb810  00000000101319b4  000000001dd=
45890
04-07   00000000104ec17c  00000000104ebda4  000000000000000a  00000000104=
ebda4
08-11   00000000104ebdac  00000000103c6010  0000000000200200  00000000104=
90698
12-15   0000000000000000  00000000ffffffff  0000000000000000  00000000f04=
00004
16-19   0000000010484140  00000000f000017c  00000000f0000174  00000000104=
ec17c
20-23   000000000042884a  00000000006a884a  0000000000280000  00000000000=
00262
24-27   000000000000000a  000000001dd454d0  00000000104ebda4  00000000103=
bd010
28-31   000000001dd45110  0000000000280000  0000000010484500  00000000101=
2d958

<Press any key to continue (q to quit)>

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  00000000000=
00000
04-07   0000000000000000  0000000000000000  0000000000000000  00000000000=
00000
08-11   000000000000142e  0000000000000000  00000000000000c0  00000000000=
0003e
12-15   0000000000000000  0000000000000000  000000000010b000  00000000ff8=
00000
16-19   00000243adf4f356  0000000000000000  00000000101318f4  000000000f9=
91280
20-23   0000000010240037  0000000051545110  000000ff0004ff0e  00000000da0=
00000
24-27   0000000000479000  000000000d19a000  0000000000044021  00000000f04=
12000
28-31   0000000055555555  0000000055555555  0000000010484000  00000000104=
88000
Space Registers 0 - 7

00-03   00000000          00000a17          00000000          00000a17
04-07   00000000          00000000          00000000          00000000

IIA Space                    =3D 0x0000000000000000
IIA Offset                   =3D 0x00000000101318f8
CPU State                    =3D 0x9e000001


<Press any key to continue (q to quit)>

Memory Error Log Information:

Timestamp =3D
  Thu Aug  18 14:43:55 GMT 2005    (20:05:08:18:14:43:55)


'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:

   No memory errors logged


I/O Module Error Log Information:

Timestamp =3D
  Thu Aug  18 14:43:55 GMT 2005    (20:05:08:18:14:43:55)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    ----------   0x0e0cc249   ------------------
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc009   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    ----------   0x4e0cc009   ------------------
   5    ----------   0x5e0cc009   ------------------
   6    ----------   0x6e0cc009   ------------------
   7    ----------   0x7e0cc009   ------------------
=3D=3D=3D=3D<>=3D=3D=3D=3D

The analysis of this TOC give:
-----------------  Processor 0 TOC Information -------------------

GR of CPU[0]
00-03   0000000000000000  00000000104eb810  00000000101319b4  000000001dd=
45890
04-07   00000000104ec17c  00000000104ebda4  000000000000000a  00000000104=
ebda4
08-11   00000000104ebdac  00000000103c6010  0000000000200200  00000000104=
90698
12-15   0000000000000000  00000000ffffffff  0000000000000000  00000000f04=
00004
16-19   0000000010484140  00000000f000017c  00000000f0000174  00000000104=
ec17c
20-23   000000000042884a  00000000006a884a  0000000000280000  00000000000=
00262
24-27   000000000000000a  000000001dd454d0  00000000104ebda4  00000000103=
bd010
28-31   000000001dd45110  0000000000280000  0000000010484500  00000000101=
2d958

GR[02] =3D=3D rp =3D 00000000101319b4

Func: cascade, Off: 0x44, Addr: 0x101319b4

        ...
10131994:       80 83 20 40     cmpb,=3D r3,r4,101319bc <cascade+0x4c>

        ...
101319b0:       08 05 02 5a     copy r5,r26
101319b4:       88 83 3f cf     cmpb,<>,n r3,r4,101319a0 <cascade+0x30>
101319b8:       48 7c 00 30     ldw 18(,r3),ret0
101319bc:       0c 63 12 88     stw r3,4(,r3)

GR[22] =3D=3D t1(32bits) =3D=3D arg4(64bits) =3D 0000000000280000

GR[21] =3D=3D t2(32bits) =3D=3D arg5(64bits) =3D 00000000006a884a

GR[20] =3D=3D t3(32bits) =3D=3D arg6(64bits) =3D 000000000042884a

GR[19] =3D=3D t4(32bits) =3D=3D arg7(64bits) =3D 00000000104ec17c

GR[26] =3D=3D arg0 =3D 00000000104ebda4

GR[25] =3D=3D arg1 =3D 000000001dd454d0

GR[24] =3D=3D arg2 =3D 000000000000000a

GR[23] =3D=3D arg3 =3D 0000000000000262

GR[27] =3D=3D dp =3D 00000000103bd010

Func: $global$, Off: 0x0, Addr: 0x103bd010


GR[28] =3D=3D ret0 =3D 000000001dd45110

GR[29] =3D=3D ret1 or sl =3D 0000000000280000

GR[30] =3D=3D sp =3D 0000000010484500

GR[31] =3D=3D ble rp =3D 000000001012d958

Func: __do_softirq, Off: 0xe0, Addr: 0x1012d958

1012d950:       e6 c0 20 00     be,l 0(sr4,r22),%sr0,%r31
1012d954:       08 1f 02 42     copy r31,rp
1012d958:       e8 1f 1f 05     b,l 1012d8e0 <__do_softirq+0x68>,r0
1012d95c:       0d 06 12 88     stw r6,4(,r8)

CR of CPU[0]
00-03   0000000000000000  0000000000000000  0000000000000000  00000000000=
00000
04-07   0000000000000000  0000000000000000  0000000000000000  00000000000=
00000
08-11   000000000000142e  0000000000000000  00000000000000c0  00000000000=
0003e
12-15   0000000000000000  0000000000000000  000000000010b000  00000000ff8=
00000
16-19   00000243adf4f356  0000000000000000  00000000101318f4  000000000f9=
91280
20-23   0000000010240037  0000000051545110  000000ff0004ff0e  00000000da0=
00000
24-27   0000000000479000  000000000d19a000  0000000000044021  00000000f04=
12000
28-31   0000000055555555  0000000055555555  0000000010484000  00000000104=
88000

CR[00] =3D=3D rctr =3D 0000000000000000

CR[08] =3D=3D (Protection ID) pidr1 =3D 000000000000142e

CR[10] =3D=3D ccr =3D 00000000000000c0

CR[11] =3D=3D sar =3D 000000000000003e

CR[14] =3D=3D iva =3D 000000000010b000

CR[15] =3D=3D eiem =3D 00000000ff800000

CR[16] =3D=3D itmr =3D 00000243adf4f356

CR[17] =3D=3D pcsq =3D 0000000000000000

CR[18] =3D=3D pcoq =3D 00000000101318f4

CR[19] =3D=3D iir =3D 000000000f991280

CR[20] =3D=3D isr =3D 0000000010240037

CR[21] =3D=3D ior =3D 0000000051545110

CR[22] =3D=3D ipsw =3D 000000ff0004ff0e

CR[23] =3D=3D eirw =3D 00000000da000000

CR[24] =3D=3D tr0 (ptov) =3D 0000000000479000

CR[25] =3D=3D tr1 (vtop) =3D 000000000d19a000

CR[26] =3D=3D tr2 =3D 0000000000044021

CR[27] =3D=3D tr3 =3D 00000000f0412000

CR[28] =3D=3D tr4 =3D 0000000055555555

CR[29] =3D=3D tr5 =3D 0000000055555555

CR[30] =3D=3D tr6 =3D 0000000010484000

CR[31] =3D=3D tr7 =3D 0000000010488000

SR of CPU[0]
00-03   00000000          00000a17          00000000          00000a17
04-07   00000000          00000000          00000000          00000000
SR[0] =3D 00000000
SR[1] =3D 00000a17
SR[2] =3D 00000000
SR[3] =3D 00000a17
SR[4] =3D 00000000
SR[5] =3D 00000000
SR[6] =3D 00000000
SR[7] =3D 00000000
Need much more work !!!

SR[00] =3D=3D ts0 =3D 00000000

SR[01] =3D=3D ts1 =3D 00000a17

SR[03] =3D=3D cpp =3D 00000a17
        Not parsable address!
...
IIA Offset                   =3D 0x00000000101318f8
...

e.g. IAOQ =3D 0x00000000101318f8

Parse IAOQ =3D 0x00000000101318f8 for CPU[0]

Func: internal_add_timer, Off: 0xdc, Addr: 0x101318f8

101318f0:       0e 79 12 88     stw r25,4(,r19)
101318f4:       0f 99 12 80     stw r25,0(,ret0)
101318f8:       e8 40 d0 00     bve (rp)
101318fc:       0f 3c 12 88     stw ret0,4(,r25)

Any idea on this new hang?

Thanks,
    Joel=0A=0A-------------------------------------------------------=0AN=
OTE! My email address is changing to ... @scarlet.be=0APlease make the ne=
cessary changes in your address book. =0A=0A

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From - Thu Nov 08 21:33:57 2018
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From: Lee Revell <rlrevell@joe-job.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [Alsa-devel] [PATCH] Support for AD1889 PCI
	Soundchip
Date: Thu, 18 Aug 2005 13:12:34 -0400
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Cc: kyle@parisc-linux.org,
 alsa-devel@lists.sourceforge.net,
 parisc-linux@lists.parisc-linux.org,
 Thibaut VARENE <T-Bone@parisc-linux.org>
To: Clemens Ladisch <clemens@ladisch.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:23105

On Thu, 2005-08-18 at 17:35 +0200, Clemens Ladisch wrote:
> > > +/* keep track of some hw registers */
> > >  struct ad1889_register_state {
> > >     u16 reg;        /* reg setup */
> > >     u32 addr;       /* dma base address */
> > > -   u16 rate;       /* sample rate */
> > > -   unsigned long pos;      /* last recorded DMA buffer position
> */
> > > -   unsigned long buf;      /* period # */
> > >     unsigned long size;     /* DMA buffer size */
> > > -   unsigned long count;    /* period size, aka nb bytes sent in
> the current DMA transfer */
> >
> > reading the patch through webmail doesn't help a lot getting a grasp
> > of its whole but i wonder if we could still find some debugging
> > purposes for these values. Remember this driver is work in
> progress ;)
> 
> Those fields just aren't used anymore; anything interesting is in the
> chip's registers. 

Isn't it still useful to maintain a cached copy of the register state
for suspend/resume purposes?

Lee

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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Latest 2.6.13-rc6-pa2 test pr :_(
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> Well the system reboot fine but the same test as describe above make again the
> system hang after only 45min of test ;_(

Yah, my c3k is also hung.  It got through one GCC full build and check,
but hung last night in the second.

Randolph's patch only fixed a hang causes by a stack overflow when
catching SIGSEGV.  It's not going to fix anything that doesn't SEGV.

Note that my patch was to fix a glibc issue affecting signal handling.
It's doubtful that it would fix the hangs that you have been experiencing
with your stress test.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Latest 2.6.13-rc6-pa2 test pr :_(
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> I also install the latest gcc-4.0-4.0.1-5 on my unstable b2k install to
> rebuild the same 32bit kernel (2.6.13-rc6-pa2 cvs 20050817) but saving libc6
> 2.3.2.ds1-22 (excepted this the 2 systems are debian unstable update at the
> same level this morning).
> Well the system reboot fine but the same test as describe above make again the
> system hang after only 45min of test ;_(

does the system respond to sysrq when it hangs? if so it may be useful 
to look at it with kdb.

does it always hang in internal_add_timer?

randolph
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Subject: [parisc-linux] Re: Why toggle_bounce only for disks?
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Hi,

http://www.ussg.iu.edu/hypermail/linux/kernel/0209.1/1074.html

Jens, is this still true??

Bartlomiej

On 8/7/05, Kyle McMartin <kyle@parisc-linux.org> wrote:
> Ahoi,
>=20
> The following patch fixes a crash caused by attempting to bounce buffer
> when an IDE CD-ROM is used on a machine with an IO-MMU. [At least, this
> patch fixes things so I can use my IDE CD-ROM behind an ns87415 on a
> HP PA-RISC workstation.]
>=20
> Why was this only allowed for disks?
>=20
> --- a/drivers/ide/ide-lib.c   18 Jul 2005 18:46:30 -0000
> +++ b/drivers/ide/ide-lib.c   6 Aug 2005 20:28:04 -0000
> @@ -410,7 +410,7 @@ void ide_toggle_bounce(ide_drive_t *driv
>  {
>         u64 addr =3D BLK_BOUNCE_HIGH;     /* dma64_addr_t */
>=20
> -       if (on && drive->media =3D=3D ide_disk) {
> +       if (on) {
>                 if (!PCI_DMA_BUS_IS_PHYS)
>                         addr =3D BLK_BOUNCE_ANY;
>                 else if (HWIF(drive)->pci_dev)
>=20
> Cheers,
> --
> Kyle McMartin
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On Fri, Aug 19 2005, Bartlomiej Zolnierkiewicz wrote:
> Hi,
> 
> http://www.ussg.iu.edu/hypermail/linux/kernel/0209.1/1074.html
> 
> Jens, is this still true??

It is, ide-cd would require changes to accept highmem pages.

> > Ahoi,
> > 
> > The following patch fixes a crash caused by attempting to bounce buffer
> > when an IDE CD-ROM is used on a machine with an IO-MMU. [At least, this
> > patch fixes things so I can use my IDE CD-ROM behind an ns87415 on a
> > HP PA-RISC workstation.]
> > 
> > Why was this only allowed for disks?

Because not bouncing is a performance optimization and I only did the
work on ide-cd to allow it. Your patch breaks ide-cd on highmem i386
machines, so it's not acceptable.

Tells us more about this crash instead, I'm pretty sure you are working
around another issue (your io-mmu code, is it hardware or software?)
somehwere with this patch.


> > --- a/drivers/ide/ide-lib.c   18 Jul 2005 18:46:30 -0000
> > +++ b/drivers/ide/ide-lib.c   6 Aug 2005 20:28:04 -0000
> > @@ -410,7 +410,7 @@ void ide_toggle_bounce(ide_drive_t *driv
> >  {
> >         u64 addr = BLK_BOUNCE_HIGH;     /* dma64_addr_t */
> > 
> > -       if (on && drive->media == ide_disk) {
> > +       if (on) {
> >                 if (!PCI_DMA_BUS_IS_PHYS)
> >                         addr = BLK_BOUNCE_ANY;
> >                 else if (HWIF(drive)->pci_dev)
> > 
> > Cheers,
> > --
> > Kyle McMartin
> 

-- 
Jens Axboe

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Xref: news.gmane.org gmane.linux.ports.parisc:23110

Grant Grundler wrote:
>>p.s.  I installed HPUX in 64-bit mode.  Which, so I'm told, should
>>have decreased my performance.  I'd like to get my C160 running Linux
>>in 64-bit mode, but I can't. :(
>
> Sure you can. recent 64-bit kernels will boot on C160.
> It's just not an obvious win in most cases.

No, I mean I'm running into problems trying to get a 64-bit kernel to
work.  Two problems - one I could work around, one I can't.

First is as soon as any kernel I've tried gets to enumerating EISA
devices it hangs.  The panel LEDs flash in a specific pattern.  I think
I remember reading about how each pattern is one nybble of an error code
(wow - I don't remember the last time I got to use the word 'nybble').
I should prolly do a ToC and grab the data for reporting, just haven't
got around to it yet.  Now, I know for a sure it's at the EISA point in
a 2.6.13 kernel as I can tell from the messages.  I think something
changed in recent kernels so that kernel messages are shown sooner in
the boot process.  Earlier kernels would just hang after about the same
amount of time, but I wouldn't see the message.  The LED pattern is the
same in all cases, regardless of kernel version.  BTW - can someone
confirm my kernel message theory?  Whoever made that change, thanks. :)

Anyways, if I disable EISA in the kernel, I get up to the SCSI driver it
hangs for about a minute then spits out a message about offlining the
drive:

ncr53c720-0: rev 0xf irq 67
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3g
scsi: Device offlined - not ready after error recovery: host 0 channel 0
 id 0 lun 0

	Kurt.
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Subject: Re: [parisc-linux] Re: Why toggle_bounce only for disks?
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Xref: news.gmane.org gmane.linux.ports.parisc:23111

On Fri, 2005-08-19 at 12:21 +0200, Jens Axboe wrote:
> Because not bouncing is a performance optimization and I only did the
> work on ide-cd to allow it. Your patch breaks ide-cd on highmem i386
> machines, so it's not acceptable.
> 
> Tells us more about this crash instead, I'm pretty sure you are working
> around another issue (your io-mmu code, is it hardware or software?)
> somehwere with this patch.

OK, so the particular fix is wrong; but the logic in ide_toggle_bounce()
is also incorrec.  Our problem is not that we don't want to bounce
highmem in ide-cd, it's that this is a parisc system with an IOMMU and
doesn't have any highmem to begin with.

we need ide_toggle_bounce to return BLK_BOUNCE_ANY always if
PCI_DMA_BUS_IS_PHYS is not set.

James

diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -410,10 +410,10 @@ void ide_toggle_bounce(ide_drive_t *driv
 {
 	u64 addr = BLK_BOUNCE_HIGH;	/* dma64_addr_t */
 
-	if (on && drive->media == ide_disk) {
-		if (!PCI_DMA_BUS_IS_PHYS)
-			addr = BLK_BOUNCE_ANY;
-		else if (HWIF(drive)->pci_dev)
+	if (!PCI_DMA_BUS_IS_PHYS)
+		addr = BLK_BOUNCE_ANY;
+	else if (on && drive->media == ide_disk) {
+		if (HWIF(drive)->pci_dev)
 			addr = HWIF(drive)->pci_dev->dma_mask;
 	}
 


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On Fri, Aug 19 2005, James Bottomley wrote:
> On Fri, 2005-08-19 at 12:21 +0200, Jens Axboe wrote:
> > Because not bouncing is a performance optimization and I only did the
> > work on ide-cd to allow it. Your patch breaks ide-cd on highmem i386
> > machines, so it's not acceptable.
> > 
> > Tells us more about this crash instead, I'm pretty sure you are working
> > around another issue (your io-mmu code, is it hardware or software?)
> > somehwere with this patch.
> 
> OK, so the particular fix is wrong; but the logic in ide_toggle_bounce()
> is also incorrec.  Our problem is not that we don't want to bounce
> highmem in ide-cd, it's that this is a parisc system with an IOMMU and
> doesn't have any highmem to begin with.
> 
> we need ide_toggle_bounce to return BLK_BOUNCE_ANY always if
> PCI_DMA_BUS_IS_PHYS is not set.
> 
> James
> 
> diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
> --- a/drivers/ide/ide-lib.c
> +++ b/drivers/ide/ide-lib.c
> @@ -410,10 +410,10 @@ void ide_toggle_bounce(ide_drive_t *driv
>  {
>  	u64 addr = BLK_BOUNCE_HIGH;	/* dma64_addr_t */
>  
> -	if (on && drive->media == ide_disk) {
> -		if (!PCI_DMA_BUS_IS_PHYS)
> -			addr = BLK_BOUNCE_ANY;
> -		else if (HWIF(drive)->pci_dev)
> +	if (!PCI_DMA_BUS_IS_PHYS)
> +		addr = BLK_BOUNCE_ANY;
> +	else if (on && drive->media == ide_disk) {
> +		if (HWIF(drive)->pci_dev)
>  			addr = HWIF(drive)->pci_dev->dma_mask;
>  	}

That looks more correct, indeed. It's really too convoluted for drivers,
the defines/setup could do with a little work-over.

-- 
Jens Axboe

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Subject: Re: [parisc-linux] [Alsa-devel] [PATCH] Support for AD1889 PCI
	Soundchip
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On Thu, Aug 18, 2005 at 05:35:20PM +0200, Clemens Ladisch wrote:
...
> > reading the patch through webmail doesn't help a lot getting a grasp
> > of its whole but i wonder if we could still find some debugging
> > purposes for these values. Remember this driver is work in progress ;)
> 
> Those fields just aren't used anymore; anything interesting is in the
> chip's registers.

Clemens,
You don't want to be reading chip registers all the time.
It's *very* expensive. Cache any values that don't change
in a local struct if they get referenced regularly.

You might find the mmio_test results interesting.
It would be great if you could add one or two audio devices
to mmio_test program here:
	svn co http://svn.gnumonks.org/trunk/mmio_test/

Please send a patch to Harald Welte <laforge@gnumonks.org>.

thanks,
grant
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> > TOC:
> > 
> > r2	__handle_mm_fault+0x68  (return from call to pte_alloc_map)
> > IIA	__handle_mm_fault+0x190
> > 
> > It looks as if this might have been caused by Process_3.exe in the
> > libjava GCC testsuite.
> 
> Does it always hang in the same place? How much RAM/swap do you have in 
> your system? Does it hang more/less if you disable swap?

I've seen this fault before.  I don't have enough data at this point
with 2.6.13 to say it always hangs in the same place.

RAM: 1GB

SWAP:
root@hiauly6:/home/dave# cat /proc/swaps
Filename                                Type            Size    Used    Priority
/dev/sdb1                               partition       265032  0       -1
/dev/sda1                               partition       263144  0       -2

dave@hiauly6:~$ ulimit -v
524288

The above limit was sufficient to prevent the as crash associated with
the 1GB .block directive.

I don't know the answer to the last question at this time.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Richard Hirst wrote:
> Just for the record, I'm running  2.6.13-rc3-pa0 built locally
> with gcc 4.0.1 on a B180 with a 4G disk, and have run your 'dd'
> test for 88 cycles so far without any problems.  The nfs mount
> is from a linux box running Fedora Core 3.
> 
> Richard
> 
Hello Richard,

May I ask your NFS kernel config?

(it seems to work fine for me too but without nfs v4;
btw I now manage my ft with ssh (may be stunnel and rsync would be a better sol?) so I spend less time for more test?)

Thank in advance,
	Joel
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In-Reply-To: <874qa39yqm.fsf@deprecated.intranet.astaro.de> (Sven Schnelle's
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Hi,

Sven Schnelle <svens@gmx.de> writes:

Just speaking to me, myself and i:

> i have a MAC USB Keyboard, which won't work with the builtin USB
> Controller of the C3600. If i connect it, i get this error messages:
> [..]
> Now i use a PCI USB Controller, and with this the keyboard is working
> fine, the only bad thing is that the Kernel crashes after 1-2h:
> [Kernel-oops-Backtrace]

Ok, this oops happens only if i have a Tekram DC-390U2W (SYM53C895
Chipset) SCSI Controller running in this system. After i removed it, the
kernel never crashed again. Unfortunately, this doen't mean that the
Keyboard is working the Onboard USB Controller. But at least its now
running fine with an PCI USB Controller.

Sven.
=2D-=20
"The number of Unix installations has grown to ten,  with more
 expected." (Unix Programmer's Manual, 2nd ed.; june 1972)

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From: Lee Revell <rlrevell@joe-job.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [2.6 patch] schedule obsolete OSS drivers for
	removal (version 2)
Date: Tue, 09 Aug 2005 13:13:51 -0400
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Cc: Andrew Morton <akpm@osdl.org>,
 alsa-devel@alsa-project.org,
 Christoph Eckert <ce@christeck.de>,
 zaitcev@yahoo.com,
 kyle@parisc-linux.org,
 James@superbug.demon.co.uk,
 Thorsten Knabe <linux@thorsten-knabe.de>,
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To: Adrian Bunk <bunk@stusta.de>
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On Fri, 2005-07-29 at 17:32 +0200, Adrian Bunk wrote:
> This patch schedules obsolete OSS drivers (with ALSA drivers that 
> support the same hardware) for removal.
> 
> Scheduling the via82cxxx driver for removal was ACK'ed by Jeff Garzik.
> 

Someone on linux-audio-user just pointed out that the OSS USB audio and
midi modules were never deprecated, much less scheduled to be removed.

Maybe the best way to deprecate them is to move them to Sound -> OSS,
that's where they belong anyway.

Lee

On Tue, 2005-08-09 at 18:42 +0200, Christoph Eckert wrote: 
> > Recompile the kernel with USB audio support.
> 
> Please ensure that you *disable* => Devioce drivers => USB => 
> USB audio and USB Midi.
> 
> Both are OSS modules and caused a lot of trouble here when 
> used in conjunction with the ALSA module
> 
> => Sound => ALSA => USB devices => USB Audio/MIDI driver
> 
> 
> BTW: OSS is marked as deprecated, but not the two OSS modules 
> mentioned above. Couldn't this get set or at least some info 
> that these modules belong to OSS?


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From: Adrian Bunk <bunk@stusta.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [2.6 patch] schedule obsolete OSS drivers for
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Date: Tue, 9 Aug 2005 19:49:06 +0200
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Cc: Andrew Morton <akpm@osdl.org>,
 alsa-devel@alsa-project.org,
 Christoph Eckert <ce@christeck.de>,
 zaitcev@yahoo.com,
 James@superbug.demon.co.uk,
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To: Lee Revell <rlrevell@joe-job.com>,
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On Tue, Aug 09, 2005 at 01:13:51PM -0400, Lee Revell wrote:
> On Fri, 2005-07-29 at 17:32 +0200, Adrian Bunk wrote:
> > This patch schedules obsolete OSS drivers (with ALSA drivers that 
> > support the same hardware) for removal.
> > 
> > Scheduling the via82cxxx driver for removal was ACK'ed by Jeff Garzik.
> > 
> 
> Someone on linux-audio-user just pointed out that the OSS USB audio and
> midi modules were never deprecated, much less scheduled to be removed.
> 
> Maybe the best way to deprecate them is to move them to Sound -> OSS,
> that's where they belong anyway.

I'd deprecate them without moving them.

I'll send a patch unless someone tells that any functionality of these 
drivers is lacking in ALSA.

> Lee

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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From: Lee Revell <rlrevell@joe-job.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [2.6 patch] schedule obsolete OSS drivers for
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Date: Tue, 09 Aug 2005 13:54:48 -0400
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Cc: Andrew Morton <akpm@osdl.org>,
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 zab@zabbo.net,
 Christoph Eckert <ce@christeck.de>,
 zaitcev@yahoo.com,
 kyle@parisc-linux.org,
 James@superbug.demon.co.uk,
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 NAGANO Daisuke <breeze.nagano@nifty.ne.jp>,
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To: Adrian Bunk <bunk@stusta.de>
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On Tue, 2005-08-09 at 19:49 +0200, Adrian Bunk wrote:
> I'd deprecate them without moving them.
> 

OK, I think that will still be slightly confusing becuase it comes
before Sound in the kernel config, but maybe the deprecated part will
make people think twice.

I think we should at least label these clearly as part of OSS.  Users at
least seem to know that mixing OSS and ALSA modules is bad.

> I'll send a patch unless someone tells that any functionality of these
> drivers is lacking in ALSA. 

OK.  I'm almost positive there is no functionality missing, there have
not been any reports of people needing to use the OSS driver on any of
the ALSA lists.

Lee 

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On Sunday 07 August 2005 02:33 pm, John David Anglin wrote:
> I noticed recently that HP has updated various defines for ELF under
> HP-UX which are not documented in the ELF supplement.  I was wondering
> if the supplement has been updated.  The last version that I can find
> is version 1.5, August 20, 1998.  Some of these updates might also be
> applicable to ia64.

hrm, i only have version 1.43 from October 6, 1997 ... can i get a copy of 
your updated version and/or a URL for it ? :)
-mike
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> hrm, i only have version 1.43 from October 6, 1997 ... can i get a copy of 
> your updated version and/or a URL for it ? :)

There doesn't seem to be a link to it on the www.parisc-linux.org
site but it's here <http://ftp.parisc-linux.org/docs/arch/elf-pa-hp.pdf>.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] B132L outperforms C160 - 64-bit userland needed?
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On Wed, Aug 17, 2005 at 11:27:24PM -0600, Kurt Fitzner wrote:
...
> Next off, for nbench running on a C160/HPUX I see a memory throughput
> increase of 2.67X, integer calc increase of 1.4X, and floating point
> increase of 2.24X when compared to the C160/Linux.
...
> The performance issue on my C160/Linux was not due cache line
> loading/thrashing.
...
> What really locked it in for me that it's an OS issue,
...

It clearly is an OS issue. And thinking about it more,
I'm convinced this benchmark is exposing a cache utilization
(or lack thereof) issue. HPUX is very efficient at
NOT flushing the cache. Linux flushes alot more.

thanks,
grant
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On Thu, Aug 18, 2005 at 10:27:37AM +0200, Joel Soete wrote:
> mmm, is this system need ccio-dma and zalon:ncr53c720 drivers
> as does my d380?

C160 will need both ccio-dma and zalon.
we've run ccio-dma in 64-bit in the past.
I'm not as sure about zalon driver.

> On my d380 those two drivers doesn't seems to be 64bit
> ready :_( (2.6.12-pa2)

Doesn't compile or doesn't boot?

> (I expect to find simple instrumentation tools like IKD
> (but not maintain for 2.6) or LTT to help me to figure
> out if some race condition (as I suspect)
> occures or not)

There are plenty of things that don't work for palinux.
The parisc port is just doing "ok" - not excellent.

grant
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Subject: Re: [parisc-linux] 64-bit kernel booting problem (was: B132L
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On Fri, Aug 19, 2005 at 04:47:01AM -0600, Kurt Fitzner wrote:
> First is as soon as any kernel I've tried gets to enumerating EISA
> devices it hangs.

Yes - EISA is known to be broken....certain people should have
enough information at this point to write the code but
it's not trivial to get working. EISA just isn't that exciting
these days.

> The panel LEDs flash in a specific pattern.  I think
> I remember reading about how each pattern is one nybble
> of an error code

If so, that's probably documented in one of the user guides.
See "Tech Documentation" on www.parisc-linux.org.
Possibly this one:
	http://ftp.parisc-linux.org/docs/platforms/cxxx-service.pdf


> I should prolly do a ToC and grab the data for reporting,
> just haven't got around to it yet.

See the FAQ for how to report kernel bugs - some good
tips there on what's needed.


> Anyways, if I disable EISA in the kernel, I get up to
> the SCSI driver it hangs for about a minute then spits
> out a message about offlining the drive:
> 
> ncr53c720-0: rev 0xf irq 67
> ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
> scsi0 : ncr53c8xx-3.4.3g
> scsi: Device offlined - not ready after error recovery: host 0 channel 0
>  id 0 lun 0

Can you connect a serial console and capture the entire output?
Normally, one just needs to disconnect the keyboard and
talk to serial port 1 with minicom from another box.

I'm pretty sure this worked before on C200/C240/C360
machines before.

thanks,
grant
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> > TOC:
> > 
> > r2	__handle_mm_fault+0x68  (return from call to pte_alloc_map)
> > IIA	__handle_mm_fault+0x190
> > 
> > It looks as if this might have been caused by Process_3.exe in the
> > libjava GCC testsuite.
> 
> Does it always hang in the same place? How much RAM/swap do you have in 
> your system? Does it hang more/less if you disable swap?

Had another hang last night.  Here is the TOC for it:

r2	intr_check_sig+0
IIA	handle_interruption+0x30
r26,r5	code = 0x1a = 26 => Data Memory Access Rights Trap

This again occurred in the libjava testsuite:

byte compile: /home/dave/gnu/gcc-4.0/objdir/gcc/gcj -B/home/dave/gnu/gcc-4.0/objdir/hppa-linux/libjava/ -B/home/dave/gnu/gcc-4.0/objdir/gcc/ --encoding=UTF-8 -C -I/home/dave/gnu/gcc-4.0/objdir/hppa-linux/libjava/testsuite/../libgcj-4.1.0.jar -g /home/dave/gnu/gcc-4.0/gcc/libjava/testsuite/libjava.lang/SyncTest.java -d
/home/dave/gnu/gcc-4.0/objdir/hppa-linux/libjava/testsuite 2>@ stdout
PASS: SyncTest byte compilation
SyncTestSyncTest set_ld_library_path_env_vars: ld_library_path=.:/home/dave/gnu/gcc-4.0/objdir/hppa-linux/./libjava/.libs:/home/dave/gnu/gcc-4.0/objdir/gcc
Setting LD_LIBRARY_PATH to .:/home/dave/gnu/gcc-4.0/objdir/hppa-linux/./libjava/.libs:/home/dave/gnu/gcc-4.0/objdir/gcc:.:/home/dave/gnu/gcc-4.0/objdir/hppa-linux/./libjava/.libs:/home/dave/gnu/gcc-4.0/objdir/gcc:.:/home/dave/gnu/gcc-4.0/objdir/hppa-linux/./libjava/.libs:/home/dave/gnu/gcc-4.0/objdir/gcc:/home/dave/gnu/gcc-4.0/objdir/hppa-linux/libstdc++-v3/.libs:/home/dave/gnu/gcc-4.0/objdir/hppa-linux/libmudflap/.libs:/home/dave/gnu/gcc-4.0/objdir/hppa-linux/libssp/.libs:/home/dave/gnu/gcc-4.0/objdir/./gcc:/home/dave/gnu/gcc-4.0/objdir/./prev-gcc:/usr/lib/debug
Exception in thread "Thread-1" Exception in thread "Thread-2" Exception in thread "Thread-3" Exception in thread "Thread-4"

I found that Process_3.exe was generating unaligned exceptions.  This
was a result of a new macro define being added to libjava
(UNWRAP_FUNCTION_DESCRIPTOR).  This macro was incorrectly doing function
pointer canonicalization resulting in the unaligned exceptions.  I was
testing a fix for this when I got the above hang.

I have the feeling that there is at least one more circumstance where
handle_exceptions can loop.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Grant Grundler wrote:
> On Sat, Aug 20, 2005 at 06:39:46PM +0000, Joel Soete wrote:
> 
>>Effextively it failed to boot as Kurt describe.
> 
> 
> Ah ok. James knows about that issue already.
Yes, we already discussed about that some time ago
(whao, so long :^? <http://lists.parisc-linux.org/pipermail/parisc-linux/2005-May/026557.html> )

> I have neither HW nor interest in debugging it.
> 
Obviously, I am very interested: I have a nice d380 2way with many stuff (remote controle console, some more scsi ctrlr, second nic, 
and could also grab some serial mux (eisa iirc), a jamaica disk box (full with some 5*4Gb and 1*2Gb), just lake gfx :-)), may be too 
much intresting :^? (a wilde ago, I missed to save another d390 :_( )

> 
>>PS: Any idea about the possibility to port um?
> 
> 
> um == User Mode Linux?
> 
Obviously :^)

> It's possible. :^)
> I'm not doing it. ;^)
> 
Thanks a lot,
Joel
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Matthew Wilcox wrote:
> On Sat, Aug 20, 2005 at 05:41:26PM -0600, Grant Grundler wrote:
> 
>>On Sat, Aug 20, 2005 at 06:39:46PM +0000, Joel Soete wrote:
>>
>>>Any idea about the possibility to port um?
>>
>>um == User Mode Linux?
>>
>>It's possible. :^)
>>I'm not doing it. ;^)
> 
> 
> We gave Jeff Dike a 712 a few years ago ... hey Jeff, how's that going?  ;-)
> 
Ah cool ;^)

Jeff,

I don't have time to read all interesting <http://user-mode-linux.sourceforge.net/arch-port.html>

but my main problem is always:
[...]
  Address space layout

     Before delving into the code, you need to do some high-level conceptual thinking about how to organize the address space of a 
UML process. UML maps its executable, physical memory, and kernel virtual memory into the address space of each of its processes. 
You need to decide where to put each of these so as to minimize the likelihood of a process trying to allocate that memory for its 
own use.

     The only arch hook at this point is where in the address space the UML binary is going to load. The other addresses are still 
hard-coded because they happen to work for both i386 and ppc. UML puts its own memory in the area starting at 0x5000000 and process 
stacks 4M below its own process stack. These choices may not work on all architectures, so feel free to generalize them. To locate a 
likely area on your arch, staring at /proc/<pid>/maps of various processes on the host has been the technique so far.

[...]

Any advise for the address space to use for hppa?

Thanks in advance,
	Joel
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On Sun, Aug 21, 2005 at 10:29:42AM +0000, Joel Soete wrote:
> I don't have time to read all interesting 
> <http://user-mode-linux.sourceforge.net/arch-port.html>
> 
> but my main problem is always:
> [...]
>  Address space layout
> 
>     Before delving into the code, you need to do some high-level conceptual 
>     thinking about how to organize the address space of a UML process. UML maps 
> its executable, physical memory, and kernel virtual memory into the address 
> space of each of its processes. You need to decide where to put each of 
> these so as to minimize the likelihood of a process trying to allocate that 
> memory for its own use.
> 
>     The only arch hook at this point is where in the address space the UML 
>     binary is going to load. The other addresses are still hard-coded because 
> they happen to work for both i386 and ppc. UML puts its own memory in the 
> area starting at 0x5000000 and process stacks 4M below its own process 
> stack. These choices may not work on all architectures, so feel free to 
> generalize them. To locate a likely area on your arch, staring at 
> /proc/<pid>/maps of various processes on the host has been the technique so 
> far.
> 
> [...]
> 
> Any advise for the address space to use for hppa?

well ... PA processes get 3.75GB of address space (we decided to reserve
256MB in case we needed to use it for something).  So we *could* map
the UML kernel into the top 256MB.  But I think we'd be better off using
the space registers and coming up with an API to allow UML to allocate
memory in different spaces.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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John David Anglin wrote:
>>>TOC:
>>>
>>>r2	__handle_mm_fault+0x68  (return from call to pte_alloc_map)
>>>IIA	__handle_mm_fault+0x190
>>>
>>>It looks as if this might have been caused by Process_3.exe in the
>>>libjava GCC testsuite.
>>
>>Does it always hang in the same place? How much RAM/swap do you have in 
>>your system? Does it hang more/less if you disable swap?
> 
> 
> Had another hang last night.  Here is the TOC for it:
> 
> r2	intr_check_sig+0
> IIA	handle_interruption+0x30
> r26,r5	code = 0x1a = 26 => Data Memory Access Rights Trap
> 
mmm, from pure user point of view that sounds a bit like a segv?

and btw in traps.c still stand some other
[...]
     479 void handle_interruption(int code, struct pt_regs *regs)
     480 {
[...]
     737                 force_sig_info(SIGSEGV, &si, current);
[...]
     781                 force_sig_info(SIGSEGV, &si, current);
[...]

This last one is specialy interesting as (if I well understand) ending handle_interruption() for case 26.

Unfortunately, not yet find how to fix it:
	o as tausq did for signal.c
	o s/force_sig_info(SIGSEGV, &si, current)/force_sig(SIGSEGV, current)/

Joel

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>      737                 force_sig_info(SIGSEGV, &si, current);
> [...]
>      781                 force_sig_info(SIGSEGV, &si, current);
> [...]
> 
> This last one is specialy interesting as (if I well understand) ending handle_interruption() for case 26.
> 
> Unfortunately, not yet find how to fix it:
> 	o as tausq did for signal.c
> 	o s/force_sig_info(SIGSEGV, &si, current)/force_sig(SIGSEGV, current)/

Hmmm, possibly all SIGSEGV calls to force_sig_info are potentially
subject to looping.  I see ia64 defines a function force_sigsegv_info.
The important difference being the following bit of code:

        if (sig == SIGSEGV) {
		/*
		 * Acquiring siglock around the sa_handler-update is almost
		 * certainly overkill, but this isn't a
		 * performance-critical path and I'd rather play it safe
		 * here than having to debug a nasty race if and when
		 * something changes in kernel/signal.c that would make it
		 * no longer safe to modify sa_handler without holding the
		 * lock.
		*/
		spin_lock_irqsave(&current->sighand->siglock, flags);
		current->sighand->action[sig - 1].sa.sa_handler = SIG_DFL;
		spin_unlock_irqrestore(&current->sighand->siglock, flags);
	}

where it looks as if it resets the handler for the signal to SIG_DFL.
This same bit of code is in force_sigsegv.  If we were to do this, I
see that we need to handle SEGV_MAPERR and SI_KERNEL.

I think we may also want to reset the handler for SIGBUS.

Dave
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> I found that Process_3.exe was generating unaligned exceptions.  This
> was a result of a new macro define being added to libjava
> (UNWRAP_FUNCTION_DESCRIPTOR).  This macro was incorrectly doing function
> pointer canonicalization resulting in the unaligned exceptions.  I was
> testing a fix for this when I got the above hang.

Process_3.exe was causing unaligned traps, but it was not the process 
running when the system hung, right?

> I have the feeling that there is at least one more circumstance where
> handle_exceptions can loop.

In this case, when the machine hung, was it the same as before, where it 
will still respond to sysrq and pings?

In the previous case (stack overflow), I was able to debug this further 
by running the hanging process in the background (i.e. ./cc1plus ... &). 
Now when it hangs, I was still able to use the console and run strace on 
it. I wonder if you ran the gcc testsuite in the background, will the 
machine still respond sufficiently when it is "hung" that you can do 
some more debugging? strace should tell you if you are having another 
signal loop.

randolph
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> Process_3.exe was causing unaligned traps, but it was not the process 
> running when the system hung, right?

I'm not sure.  It was the last test run in the log but this isn't a
reliable indication.

I installed a GCC fix last night which fixes Process_3.exe, so it doesn't
generate the unaligned faults anymore.  The fixes stack traces under
java.  However, there's still a problem when gij is used (PR libgcj/21692).
I haven't figured out how to debug this.

> In this case, when the machine hung, was it the same as before, where it 
> will still respond to sysrq and pings?

I'm not sure about sysrq but the machine was still responding to pings.

> In the previous case (stack overflow), I was able to debug this further 
> by running the hanging process in the background (i.e. ./cc1plus ... &). 
> Now when it hangs, I was still able to use the console and run strace on 
> it. I wonder if you ran the gcc testsuite in the background, will the 
> machine still respond sufficiently when it is "hung" that you can do 
> some more debugging? strace should tell you if you are having another 
> signal loop.

I actually run GCC builds and the testsuite in the background all
the time.  So, it's definitely possible to do this from the console.
Problem is the machine is downtown at NRC and it's not setup with a
serial console.  I know from past experience that ssh connections die.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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To: Takashi Iwai <tiwai@suse.de>
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On Mon, Aug 22, 2005 at 01:03:34PM +0200, Takashi Iwai wrote:
> At Fri, 19 Aug 2005 19:36:55 -0600,
> Grant Grundler wrote:
> > 
> > On Fri, Aug 19, 2005 at 07:53:22PM +0200, Takashi Iwai wrote:
> > > Check his patch carefully.  It doesn't add any extra accesses (except
> > > for one readl to flush in irq handler - I guess it was added to be
> > > sure?).  The original driver didn't use these fields effectively at
> > > all, too.
> > 
> > Sorry - I didn't look at patch at all.
> > If the fields were never used, removing them is fine.
> > If they *could* have been used, then removing them is a bad idea.
> 
> They won't be used/referred any more at all, so why do you need still
> to keep them?

I don't - removing them is fine.

> > In general, referencing parameters in IO device registers is NOT
> > a good substitute for caching the values "locally" in host mem.
> 
> A cached value is not accurate, especially if you want to get a
> precise position.

Caching is only possible if the register is "constant" for
the duration of it's use. e.g. offset or "count down" registers
can't be cached.


>   The position callback should return the accurate
> position as much as possible since this can be used from the low
> latency calculation like dmix.

ok - no problem. That's reasonable.

grant
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From: Takashi Iwai <tiwai@suse.de>
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Subject: Re: [parisc-linux] [Alsa-devel] [PATCH] Support for AD1889 PCI
	Soundchip
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Cc: alsa-devel@lists.sourceforge.net,
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To: Grant Grundler <grundler@parisc-linux.org>
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At Mon, 22 Aug 2005 18:13:25 -0600,
Grant Grundler wrote:
> 
> On Mon, Aug 22, 2005 at 01:03:34PM +0200, Takashi Iwai wrote:
> > At Fri, 19 Aug 2005 19:36:55 -0600,
> > Grant Grundler wrote:
> > > 
> > > On Fri, Aug 19, 2005 at 07:53:22PM +0200, Takashi Iwai wrote:
> > > > Check his patch carefully.  It doesn't add any extra accesses (except
> > > > for one readl to flush in irq handler - I guess it was added to be
> > > > sure?).  The original driver didn't use these fields effectively at
> > > > all, too.
> > > 
> > > Sorry - I didn't look at patch at all.
> > > If the fields were never used, removing them is fine.
> > > If they *could* have been used, then removing them is a bad idea.
> > 
> > They won't be used/referred any more at all, so why do you need still
> > to keep them?
> 
> I don't - removing them is fine.
> 
> > > In general, referencing parameters in IO device registers is NOT
> > > a good substitute for caching the values "locally" in host mem.
> > 
> > A cached value is not accurate, especially if you want to get a
> > precise position.
> 
> Caching is only possible if the register is "constant" for
> the duration of it's use. e.g. offset or "count down" registers
> can't be cached.
> 
> 
> >   The position callback should return the accurate
> > position as much as possible since this can be used from the low
> > latency calculation like dmix.
> 
> ok - no problem. That's reasonable.

Glad to hear we agree :)

BTW, did anyone test Clemens' patch on the real machine?
If it works fine on 2.6, I'd like to push the driver to alsa-kernel
(eventually linux kernel) tree.


Takashi
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From: Michal Rokos <michal.rokos@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] SSH triggered MMAP bug?
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------=_Part_3343_14025129.1124800310842
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Hello,

every time I log off from ssh session, I bump to BUG_ON() in mmap.c line 19=
72.

Here's the output:
---8<---
Badness in exit_mmap at mm/mmap.c:1972
Backtrace:
[exit_mmap+344/460] exit_mmap+0x158/0x1dc
[mmput+68/188] mmput+0x44/0xbc
[do_exit+228/1028] do_exit+0xe4/0x404
[do_group_exit+64/204] do_group_exit+0x40/0xcc
[syscall_exit+0/20] syscall_exit+0x0/0x14
---8<---
(I changed BUG_ON() to WARN_ON() )

Kernel is latest:
volavka:~# uname -a
Linux volavka 2.6.13-rc6-pa3 #3 Tue Aug 23 13:58:28 CEST 2005 parisc GNU/Li=
nux

GCC: 3.3.6
binutils: 2.16.1
(CrossCompiled from scratch on P4)

Here's the line from mmap.c
WARN_ON(mm->nr_ptes > (FIRST_USER_ADDRESS+PMD_SIZE-1)>>PMD_SHIFT);

# D 9000 (d210)
volavka:~# cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 1.1d
cpu             : PA7100LC (PCX-L)
cpu MHz         : 100.000000
model           : 9000/811/D210
model name      : UL Proc L-100 (811/D210,D310)
hversion        : 0x00004840
sversion        : 0x00000481
I-cache         : 128 KB
D-cache         : 128 KB (WB, 0-way associative)
ITLB entries    : 64
DTLB entries    : 64 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=3D4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (8 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 99.73
software id     : 2010696954

Michal

PS: On second machine (712/80) (the same kernel - the same binary)
it's working just fine... Could be some kernel-feature-missing issue
then?
sova:~# cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 1.1d
cpu             : PA7100LC (PCX-L)
cpu MHz         : 80.000000
model           : 9000/712
model name      : Gecko 80 (712/80)
hversion        : 0x00006010
sversion        : 0x00000481
I-cache         : 128 KB
D-cache         : 128 KB (WB, 0-way associative)
ITLB entries    : 64
DTLB entries    : 64 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=3D4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (8 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 79.66
software id     : 2010928732

------=_Part_3343_14025129.1124800310842
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Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename=".config"

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Subject: Re: [parisc-linux] Latest 2.6.13-rc6-pa2 test pr :_(
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Xref: news.gmane.org gmane.linux.ports.parisc:23136

> Still don't know.  I have been working on the java testsuite which
> appears to cause most of the kernel bugs.  I fixed a bug last weekend
> where the signal handler caused a SIGSEGV.  An incorrect count was
> used to copy a mmapped block.  We still have a problem with PR218.exe.
> The DWARF unwind fails to stop and allocates a huge amount of memory.
> PR218 is a simple test to test whether the runtime can catch a null
> pointer exception from a leaf routine.  I think there is a bug in
> MD_FALLBACK_FRAME_STATE_FOR.  It replaces the %r2 value with the
> iaoq[0] value and I think this fails when we need to unwind through
> a leaf function which doesn't save %r2.

Can you explain more where this is broken?

I'm assuming you are talking about this bit of code:

     134   fs->regs.reg[2].how = REG_SAVED_OFFSET;
     135   fs->regs.reg[2].loc.offset = (long) &sc->sc_iaoq[0] - new_cfa;
     136   fs->retaddr_column = 2;

sc_iaoq[0] should be the pc when the signal handler was triggered, so it 
shouldn't matter if it's a leaf func or not. We are simply telling the 
unwinder that reg[2] has the return address of the current (signal 
handler) function, and the value of reg[2] can be computed with a stack 
offset. When is this wrong?

randolph
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Latest 2.6.13-rc6-pa2 test pr :_(
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Xref: news.gmane.org gmane.linux.ports.parisc:23137

> > Still don't know.  I have been working on the java testsuite which
> > appears to cause most of the kernel bugs.  I fixed a bug last weekend
> > where the signal handler caused a SIGSEGV.  An incorrect count was
> > used to copy a mmapped block.  We still have a problem with PR218.exe.
> > The DWARF unwind fails to stop and allocates a huge amount of memory.
> > PR218 is a simple test to test whether the runtime can catch a null
> > pointer exception from a leaf routine.  I think there is a bug in
> > MD_FALLBACK_FRAME_STATE_FOR.  It replaces the %r2 value with the
> > iaoq[0] value and I think this fails when we need to unwind through
> > a leaf function which doesn't save %r2.
> 
> Can you explain more where this is broken?

No.  I need to do more debugging.

> I'm assuming you are talking about this bit of code:
> 
>      134   fs->regs.reg[2].how = REG_SAVED_OFFSET;
>      135   fs->regs.reg[2].loc.offset = (long) &sc->sc_iaoq[0] - new_cfa;
>      136   fs->retaddr_column = 2;

Yes.  See the alpha implementation that uses an alternate column
for signal handlers.

> sc_iaoq[0] should be the pc when the signal handler was triggered, so it 
> shouldn't matter if it's a leaf func or not. We are simply telling the 
> unwinder that reg[2] has the return address of the current (signal 
> handler) function, and the value of reg[2] can be computed with a stack 
> offset. When is this wrong?

I'm not sure.  The func that triggers the exception looks like this:

00010cc4 <_ZN5PR2183fooEPS_>:
10cc4:       0f 28 10 9c     ldw 4(r25),ret0
10cc8:       37 9c 00 08     ldo 4(ret0),ret0
10ccc:       0f 3c 12 88     stw ret0,4(r25)
10cd0:       e8 40 c0 02     bv,n r0(rp)

It doesn't have a frame.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > > After another couple of hours of poking at this with gdb, I think
> > > we have a kernel bug.  The saved r2 value in the signal context
> > > appears to contain the pc where the exception occurred instead of
> > > the r2 value when the exception occured.  As a result, the unwind
> > > process goes into a loop when an exception occurs in a function
> > > which hasn't saved r2 in the frame.
> > > 
> > Ah, that why my stress test made again hang the b2k apparently at the=
 same
> > place as the original mail:
> > hpmc pointing to the same bad value (IAOQ =3D 0x00000000000172b8)
> > 
> > while TOC always show a pb in internal_add_timer():
> > GR[02] =3D=3D rp =3D 00000000101319b4
> 
> I don't see how these are related.  I'm talking about the value of
> r2 saved in the context passed to a signal handler.  Normally, the
> code that generated an exception isn't restarted, so a bad value
> for r2 doesn't usually affect the application.  In the java case,
> the java runtime is attempting to unwind the stack of the application
> and needs the r2 value for this.  Note that this is the context
> passed to a user application.
Ah ok my pb is another pb :_(
 
> 
> In the above, the TOC rp value is a kernel address.  The hpmc
> IAOQ value is probably in PDC code.  Most likely, this occurs when
> the machine is probing devices while rebooting.  I see this on my
> c3k all the time when I press TOC.
>
And no chance to get more debuging stuff as Sysrq doesn't responds ;^(

Thanks,
    Joel=0A=0A-----------------------------------------------------------=
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Subject: Re: [parisc-linux] Latest 2.6.13-rc6-pa2 test pr :_(
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> > After another couple of hours of poking at this with gdb, I think
> > we have a kernel bug.  The saved r2 value in the signal context
> > appears to contain the pc where the exception occurred instead of
> > the r2 value when the exception occured.  As a result, the unwind
> > process goes into a loop when an exception occurs in a function
> > which hasn't saved r2 in the frame.
> > 
> Ah, that why my stress test made again hang the b2k apparently at the same
> place as the original mail:
> hpmc pointing to the same bad value (IAOQ = 0x00000000000172b8)
> 
> while TOC always show a pb in internal_add_timer():
> GR[02] == rp = 00000000101319b4

I don't see how these are related.  I'm talking about the value of
r2 saved in the context passed to a signal handler.  Normally, the
code that generated an exception isn't restarted, so a bad value
for r2 doesn't usually affect the application.  In the java case,
the java runtime is attempting to unwind the stack of the application
and needs the r2 value for this.  Note that this is the context
passed to a user application.

In the above, the TOC rp value is a kernel address.  The hpmc
IAOQ value is probably in PDC code.  Most likely, this occurs when
the machine is probing devices while rebooting.  I see this on my
c3k all the time when I press TOC.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Latest 2.6.13-rc6-pa2 test pr :_(
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> After another couple of hours of poking at this with gdb, I think
> we have a kernel bug.  The saved r2 value in the signal context
> appears to contain the pc where the exception occurred instead of
> the r2 value when the exception occured.  As a result, the unwind
> process goes into a loop when an exception occurs in a function
> which hasn't saved r2 in the frame.

I thought I could reproduce this, but I couldn't..... using the attached 
program, the signal handler does see the correct (different) r2 and iaoq 
in the signal frame. When compiled with -O2, bar() is a leaf function 
with no frame, r2 in the signal handler points to the return point of 
foo() inside of main().

Did I misunderstand the problem that you are describing? I am testing 
with 2.6.13-rc6-pa2 64-bit.

randolph

#include <stdio.h>
#include <strings.h>
#include <signal.h>
#include <sys/ucontext.h>

void baz(void)
{
         printf("in baz\n");
}

void sighandler(int sig, siginfo_t *info, void *data)
{
         struct ucontext *ctx = (struct ucontext *)data;
         struct sigcontext *mctx = &ctx->uc_mcontext;
         printf("in sighandler\n");
         printf("data=%p, r2 = %x, iaoq[0] = %x\n", data, 
mctx->sc_gr[2], mctx->sc_iaoq[0]);
         baz();
         exit(0);
}

void bar(void)
{
         int *x = 0;
         int r2;

         *x = 0;
}

void foo(void)
{
         printf("in foo\n");
         bar();
}

int main(int argc, char **argv)
{
         struct sigaction sact;

         memset(&sact, 0, sizeof(sact));
         sact.sa_flags = SA_SIGINFO;
         sact.sa_sigaction = sighandler;
         sigaction(SIGSEGV, &sact, NULL);
         foo();

         return 0;
}
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> How does parisc-linux go with the K420
> these days?  Will it boot?

It works here on K380, 3 CPU's, but not as easily as on newer hw.
Debian (Sarge 3.1r0a) netinst loads the kernel, but fails too soon (no
multiuser and no console I recall).
Gentoo has fully working livecd, which boots on K class too. Someone
recommended to use the last image from 2004. So I would recommend
playing with Gentoo for now.

But there's a new problem with latest kernels too. 2.6.12.2-pa2 runs
fine with SMP enabled. But any 2.6.13-rc kernel with SMP dies silently
right after probe for console (ttyB0). When new (.13-rc) kernel is
built without SMP support, it works fine. Any ideas what could be
problem here?
--=20
Vesa
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Subject: Re: [parisc-linux] Latest 2.6.13-rc6-pa2 test pr :_(
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> > After another couple of hours of poking at this with gdb, I think
> > we have a kernel bug.  The saved r2 value in the signal context
> > appears to contain the pc where the exception occurred instead of
> > the r2 value when the exception occured.  As a result, the unwind
> > process goes into a loop when an exception occurs in a function
> > which hasn't saved r2 in the frame.
> 
> I thought I could reproduce this, but I couldn't..... using the attached 
> program, the signal handler does see the correct (different) r2 and iaoq 
> in the signal frame. When compiled with -O2, bar() is a leaf function 
> with no frame, r2 in the signal handler points to the return point of 
> foo() inside of main().
> 
> Did I misunderstand the problem that you are describing? I am testing 
> with 2.6.13-rc6-pa2 64-bit.
> }
> 
> void sighandler(int sig, siginfo_t *info, void *data)
> {
>          struct ucontext *ctx = (struct ucontext *)data;
>          struct sigcontext *mctx = &ctx->uc_mcontext;
>          printf("in sighandler\n");
>          printf("data=%p, r2 = %x, iaoq[0] = %x\n", data, 
> mctx->sc_gr[2], mctx->sc_iaoq[0]);
>          baz();
>          exit(0);

Actually, the change that I originally posted fixes the problem.
I blew the testing when I tried to take a short cut after the first
tested failed due to a separate problem was introduced into the
tree.  The problem was libgcc didn't get rebuilt as we don't have
proper dependencies on the linux-unwind.h file.

I did more debugging and the signal context generated by the
kernel is fine.  The problem is simply that the frame state
built by pa32_fallback_frame_state has to include offsets for
both r2 and iaoq[0].  We need r2 when the function that causes
the exception hasn't saved r2.  In that case, using the r2 slot
in the frame state as the unwind column causes the unwind machinery
to think that the function that caused the exception has the
exception point as its return location.  You can see this if
you look at the context built in _Unwind_Backtrace for the
function that causes the exception.

We can simply use the r0 slot in the frame state for the return
address column in signal frames since r0 is never saved.

I'm now down to the following failures on my c3k under 2.6.8.1-pa11
(I reverted back because of the crashes under 2.6.13):

FAIL: Serialization output - gij test
FAIL: Serialization output - gij test
WARNING: program timed out.
FAIL: SyncTest execution - gij test
FAIL: negzero output - gij test
FAIL: negzero output - gij test

This is down from ~65 fails two weeks ago.  The testsuite is now
running on 2.6.13-rc3-pa1 (64-bit SMP).  In the past, the results
for some of the above have varied from one system to another.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [Alsa-devel] [PATCH] Support for AD1889 PCI
	Soundchip
Date: Tue, 30 Aug 2005 22:26:36 -0400
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Cc: alsa-devel@lists.sourceforge.net,
 Clemens Ladisch <clemens@ladisch.de>,
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To: Thibaut VARENE <T-Bone@parisc-linux.org>
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On Sun, Aug 28, 2005 at 02:57:11PM +0200, Thibaut VARENE wrote:
> kyle: if it's fine for you too, please let us know and commit this patch
> to the parisc tree, i'll be offline for yet another bunch of days alas :P
>

ACK. Will commit tonight. 
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In the thread where I first posted about my C160 scoring much lower in
HPUX, someone mentioned that it might be better to offer lmbench
results.  Didn't have time before our summer-end camping trip, but I've
now finished this.

Raw results: http://www.excelcia.org/~kfitzner/misc/lmbench_c160_raw.tar.gz

PDF with graphs:
http://www.excelcia.org/~kfitzner/misc/lmbench_c160.pdf

The raw data has all three runs I performed on each OS.  The pdf graphs
have the first run for each OS since there is little variation in each run.

Anyone see anything significant here?  I don't really.

	Kurt.

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Subject: Re: [parisc-linux] 2.6.13-pa1 + mm1 relayfs + relay-apps-0.8 works
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Joel Soete wrote:
> Hello all,
> 
> Just for info:
> I just finishe to play to grab relayfs from 2.6.13-mm1 (I didn't apply all
> because spinlock-consolidation affraid me a bit)

Much more fore reminder: today it was mm2 and hack it just a few but :_(
   gcc -Wp,-MD,arch/parisc/kernel/.asm-offsets.s.d  -nostdinc -isystem /usr/lib/gcc/hppa-linux-gnu/4.0.2/include -D__KERNEL__ -Iinclu
de -Iinclude2 -I/usr/src/linux-2.6.13-pa1-mm2-20050908/include -I/usr/src/linux-2.6.13-pa1-mm2-20050908/arch/parisc/kernel -Iarch/pa
risc/kernel -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -ffreestanding -O2 -fomit-frame-pointe
r -pipe -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=1.1 -mschedule=7200 -Wdeclaration-after-st
atement -Wno-pointer-sign  -DKBUILD_BASENAME=asm_offsets -DKBUILD_MODNAME=asm_offsets -S -o arch/parisc/kernel/asm-offsets.s /usr/sr
c/linux-2.6.13-pa1-mm2-20050908/arch/parisc/kernel/asm-offsets.c
In file included from include2/asm/spinlock.h:6,
                  from include2/asm/bitops.h:6,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/bitops.h:77,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/thread_info.h:20,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/preempt.h:10,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock.h:50,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/arch/parisc/kernel/asm-offsets.c:31:
include2/asm/spinlock_types.h:14: error: conflicting types for 'raw_spinlock_t'
/usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock_types_up.h:30: error: previous declaration of 'raw_spinlock_t' was her
e
In file included from include2/asm/spinlock.h:6,
                  from include2/asm/bitops.h:6,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/bitops.h:77,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/thread_info.h:20,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/preempt.h:10,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock.h:50,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/arch/parisc/kernel/asm-offsets.c:31:
include2/asm/spinlock_types.h:22:1: warning: "__RAW_SPIN_LOCK_UNLOCKED" redefined
In file included from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock_types.h:15,
                  from include2/asm/processor.h:14,
                  from include2/asm/spinlock.h:5,
                  from include2/asm/bitops.h:6,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/bitops.h:77,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/thread_info.h:20,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/preempt.h:10,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock.h:50,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/arch/parisc/kernel/asm-offsets.c:31:
/usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock_types_up.h:32:1: warning: this is the location of the previous definit
ion
include2/asm/spinlock_types.h:27: error: conflicting types for 'raw_rwlock_t'
/usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock_types_up.h:43: error: previous declaration of 'raw_rwlock_t' was here
In file included from include2/asm/spinlock.h:6,
                  from include2/asm/bitops.h:6,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/bitops.h:77,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/thread_info.h:20,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/preempt.h:10,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock.h:50,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/arch/parisc/kernel/asm-offsets.c:31:
include2/asm/spinlock_types.h:29:1: warning: "__RAW_RW_LOCK_UNLOCKED" redefined
In file included from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock_types.h:15,
                  from include2/asm/processor.h:14,
                  from include2/asm/spinlock.h:5,
                  from include2/asm/bitops.h:6,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/bitops.h:77,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/thread_info.h:20,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/preempt.h:10,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock.h:50,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/arch/parisc/kernel/asm-offsets.c:31:
/usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock_types_up.h:45:1: warning: this is the location of the previous definit
ion
In file included from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock.h:90,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/arch/parisc/kernel/asm-offsets.c:31:
/usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock_up.h:71:1: warning: "__raw_spin_unlock_wait" redefined
In file included from include2/asm/bitops.h:6,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/bitops.h:77,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/thread_info.h:20,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/preempt.h:10,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/spinlock.h:50,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/arch/parisc/kernel/asm-offsets.c:31:
include2/asm/spinlock.h:20:1: warning: this is the location of the previous definition
In file included from include2/asm/semaphore.h:28,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/sched.h:20,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/arch/parisc/kernel/asm-offsets.c:31:
/usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/wait.h: In function 'init_waitqueue_head':
/usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/wait.h:82: error: unknown field 'lock' specified in initializer
/usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/wait.h:82: error: extra brace group at end of initializer
/usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/wait.h:82: error: (near initialization for '(anonymous).raw_lock')
/usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/wait.h:82: warning: excess elements in struct initializer
/usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/wait.h:82: warning: (near initialization for '(anonymous).raw_lock')
In file included from /usr/src/linux-2.6.13-pa1-mm2-20050908/include/linux/sched.h:20,
                  from /usr/src/linux-2.6.13-pa1-mm2-20050908/arch/parisc/kernel/asm-offsets.c:31:
include2/asm/semaphore.h: In function 'sema_init':
include2/asm/semaphore.h:63: error: unknown field 'lock' specified in initializer
include2/asm/semaphore.h:63: error: extra brace group at end of initializer
include2/asm/semaphore.h:63: error: (near initialization for '(anonymous).raw_lock')
include2/asm/semaphore.h:63: warning: excess elements in struct initializer
include2/asm/semaphore.h:63: warning: (near initialization for '(anonymous).raw_lock')
include2/asm/semaphore.h:63: error: unknown field 'lock' specified in initializer
include2/asm/semaphore.h:63: error: extra brace group at end of initializer
include2/asm/semaphore.h:63: error: (near initialization for '(anonymous).raw_lock')
include2/asm/semaphore.h:63: warning: excess elements in struct initializer
include2/asm/semaphore.h:63: warning: (near initialization for '(anonymous).raw_lock')
make[2]: *** [arch/parisc/kernel/asm-offsets.s] Error 1
make[1]: *** [arch/parisc/kernel/asm-offsets.s] Error 2
make: *** [vmlinux] Error 2

I need a more detail attention and time to try to fix that stuff ...

but where I couldn't help it's in sched-add-cacheflush-asm.patch:
diff -puN include/asm-parisc/system.h~sched-add-cacheflush-asm include/asm-parisc/system.h
--- devel/include/asm-parisc/system.h~sched-add-cacheflush-asm	2005-09-07 20:11:01.000000000 -0700
+++ devel-akpm/include/asm-parisc/system.h	2005-09-07 20:11:02.000000000 -0700
@@ -49,6 +49,15 @@ extern struct task_struct *_switch_to(st
  	(last) = _switch_to(prev, next);			\
  } while(0)

+/*
+ * On SMP systems, when the scheduler does migration-cost autodetection,
+ * it needs a way to flush as much of the CPU's caches as possible.
+ *
+ * TODO: fill this in!
+ */
+static inline void sched_cacheflush(void)
+{
+}


  /* interrupt control */

Any idea?

Thanks,
	Joel
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I updated my c3k yesterday afternoon.  This upgrade included libc6
version 2.3.5-6.  I now find that many commands run as slow as molasses.
For example,

dave@hiauly6:~$ time ls -ltr
total 3300
...
real    0m20.024s
user    0m0.006s
sys     0m0.015s

There aren't that many files in this directory!

Looking at the command under gdb, I find that poll seems to be
timing out:

Dump of assembler code for function poll:
0x408543d4 <*__GI___poll+0>:    stw rp,-14(,sp)
0x408543d8 <*__GI___poll+4>:    addil 1000,r19,%r1
0x408543dc <*__GI___poll+8>:    ldw 484(,r1),ret0
0x408543e0 <*__GI___poll+12>:   stw,ma r7,80(,sp)
0x408543e4 <*__GI___poll+16>:   stw r6,-7c(,sp)
0x408543e8 <*__GI___poll+20>:   copy r26,r6
0x408543ec <*__GI___poll+24>:   stw r5,-78(,sp)
0x408543f0 <*__GI___poll+28>:   copy r25,r5
0x408543f4 <*__GI___poll+32>:   stw r3,-70(,sp)
0x408543f8 <*__GI___poll+36>:   stw r4,-74(,sp)
0x408543fc <*__GI___poll+40>:   stw r19,-20(,sp)
0x40854400 <*__GI___poll+44>:   ldw 0(,ret0),r20
0x40854404 <*__GI___poll+48>:   cmpib,<> 0,r20,0x40854464 <*__GI___poll+144>
0x40854408 <*__GI___poll+52>:   copy r24,r3
0x4085440c <*__GI___poll+56>:   copy r19,r4
0x40854410 <*__GI___poll+60>:   be,l 100(sr2,r0),%sr0,%r31
0x40854414 <*__GI___poll+64>:   ldi a8,r20
0x40854418 <*__GI___poll+68>:   copy r4,r19

Starting program: /bin/ls -ltr
Breakpoint 1 at 0x40854418
Breakpoint 1 at 0x40854418: file ../sysdeps/unix/sysv/linux/poll.c, line 82.
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 3198)]
total 3300
[Switching to Thread 16384 (LWP 3198)]

Breakpoint 1, 0x40854418 in *__GI___poll (fds=0xc03feec8, nfds=1, timeout=5000)     at ../sysdeps/unix/sysv/linux/poll.c:82
82      ../sysdeps/unix/sysv/linux/poll.c: No such file or directory.
    in ../sysdeps/unix/sysv/linux/poll.c
(gdb) p $ret0
$6 = 1
(gdb) c
Continuing.

Breakpoint 1, 0x40854418 in *__GI___poll (fds=0xc03fecc8, nfds=1, timeout=5000)
    at ../sysdeps/unix/sysv/linux/poll.c:82
82      in ../sysdeps/unix/sysv/linux/poll.c
(gdb) p $ret0
$7 = 0
(gdb) bt
#0  0x40854418 in *__GI___poll (fds=0xc03fecc8, nfds=1, timeout=5000)
    at ../sysdeps/unix/sysv/linux/poll.c:82
#1  0x407ecb08 in _IO_new_fclose (fp=0x1388) at iofclose.c:88
#2  0x40896708 in get_mapping (type=Variable "type" is not available.
) at nscd_helper.c:195
#3  0x407f96a4 in _IO_new_file_write (f=0x7363642f, data=0x736f636b,
    n=1970155374) at fileops.c:1260
#4  0x00008800 in ?? ()
Cannot find bounds of current function (@0x0), unwinding will fail.

Any thoughts on what's wrong?  The gdb backtrace is messed up because
the callinfo data isn't right for the syscall.  The call to __GI___poll
is actually from get_mapping at nscd_helper.c:195.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] New libc6 2.3.5-6: poll timeouts
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On Sun, 2005-09-11 at 12:06 -0400, John David Anglin wrote:
> I updated my c3k yesterday afternoon.  This upgrade included libc6
> version 2.3.5-6.  I now find that many commands run as slow as molasses.
> For example,

libc6 from testing (and, actually unstable) doesn't currently work.  We
think it's the fact that it's compiled with gcc-4.0.

You have one of the minor symptoms ... try starting bind9 ...

Lamont is supposed to be arranging a binNMU of libc6 compiled with
gcc-3.3.5, but temporarily you can just force install libc6 from stable.

James


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Subject: Re: [parisc-linux] New libc6 2.3.5-6: poll timeouts
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> Lamont is supposed to be arranging a binNMU of libc6 compiled with
> gcc-3.3.5, but temporarily you can just force install libc6 from stable.

If I try to do this with apt-get, it will remove half the packages on
the system.  So, either I have to manually downgrade with dpkg or wait
for Lamont.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] New libc6 2.3.5-6: poll timeouts
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On Sun, 2005-09-11 at 14:18 -0400, John David Anglin wrote:
> > Lamont is supposed to be arranging a binNMU of libc6 compiled with
> > gcc-3.3.5, but temporarily you can just force install libc6 from stable.
> 
> If I try to do this with apt-get, it will remove half the packages on
> the system.  So, either I have to manually downgrade with dpkg or wait
> for Lamont.

You do it like this

apt-get -d install libc6/stable

which will download but not install it

then

dpkg -i /var/cache/apt/archive/libc6-<version>.deb

which will install it ignoring all of apt's dependencies

James


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Subject: Re: [parisc-linux] parisc-linux J6000 Hangs with 2.6.13-32-pa1-smp
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On Wed, Sep 07, 2005 at 08:37:26PM +0100, Antonio Cardoso Martins wrote:
> Grant, thank you very much for your prompt replies.

welcome

> "ser pim" is just to collect diagnostic info.
> It doesn't attempt to boot the machine or anything else.
> 
> I see, but what i was trying to tell you, is that after making "ser 
> pim", "ser clearpim", and "boot pri ipl", the machine wont boot unitl i 
> turn it off completely first. I think this could be not relevant. It's 
> just my urge to document abnormal behaviour from J6000.

ah ok - as jda mentioned, that is a known problem.


> Back to the bug trace, you asked me to find
> 
> 	0x0000000010115414 (IIA Offset)
> 	0x0000000010490010 (GR02)
> 	0x0000000010115410 (CR18)
> 
> in the corresponding System.map?
> 
> The results are:

To make life easier, you might try:
	http://cvs.parisc-linux.org/*checkout*/build-tools/a.c?content-type=text%2Fplain&rev=1.2

(or "cvs -d :pserver:anonymous@cvs.parisc-linux.org:/var/cvs co build-tools"
 and then "cd build-tools; make a"

> ...
> 101150c0 T smp_send_reschedule
> 10115150 T smp_call_function
> 101154b4 T smp_flush_tlb_all
> 101154f4 T smp_do_timer
> 10115558 T smp_prepare_boot_cpu
> 10115668 T smp_cpus_done
> 1011566c T __cpu_up
> 101156cc T smp_send_stop
> ...
> 1049000c D proc_gsc_root
> 10490010 D proc_mckinley_root
> 10490014 D parisc_vmerge_boundary
> ...
> 
> Hope you can find what you were looking for

IOAQ is near the end of smp_call_function().
GR02 (return pointer) is proc_mckinley_root.

Odd that GR02 would point at data ("D").
Unless gr02 is being trashed by smp_call_function.
But I don't see where smp_call_function() would touch
gr02 and trash it. Something wierd is up.

grant
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> I tried the prebuilt binary on my c3k yesterday evening.  It hung
> within an hour or so running the GCC 4.1 testsuite.

Based on the TOC dump, this hang appears to have been caused by
a loop in do_page_fault.  The code was in find_vma_prev ().

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Following the discussion on parisc, I uploaded glibc built with
gcc-3.4. Validated, that gcc-4.0 bootstraps again and the python build
errors are gone.

Please make this change for the next sourceful upload.

    Matthias
_______________________________________________
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Following the discussion on parisc, I uploaded glibc built with
gcc-3.4. Validated, that gcc-4.0 bootstraps again and the python build
errors are gone.

Please make this change for the next sourceful upload.

    Matthias


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From - Thu Nov 08 21:34:01 2018
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Subject: Re: [parisc-linux] glibc binary NMU for hppa, built with gcc-3.4
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> Following the discussion on parisc, I uploaded glibc built with
> gcc-3.4. Validated, that gcc-4.0 bootstraps again and the python build
> errors are gone.

Does this fix GCC PR 23731?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: dann frazier <dannf@hp.com>
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Subject: [parisc-linux] binutils breaks hppa kernel build,
	bad operands of fic, m
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As discussed on irc:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=329888
-- 
dann frazier <dannf@hp.com>

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Subject: Re: [parisc-linux] J6000 hangs with 2.6.14-rc1-pa1-32smp
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On Wed, Sep 21, 2005 at 12:20:33AM +0100, Antonio Cardoso Martins wrote:
> Hello,
> 
> could anybody help with tracing this bug deeper?
> 
> Machine: HP J6000 workstation with serial console, 2048 Mb
> 
> Linux version 2.6.14-rc1-pa1-32smp (root@moonlight) (gcc version 3.3.5 
> (Debian 1:3.3.5-13)) #1 SMP Sun Sep 18 20:24:10 WEST 2005
> 
> ...
> SMP CALL FUNCTION TIMED OUT! (cpu=0), try 1

Antonio,
I still occasionally see the above bug. I think we deadlock
when interrupts are disabled and we try to send an IPI.
Ergo we can never harvest the completion.  I haven't had time to dig
more into the one good TOC dump that I do have.

I have to wonder if we are loosing nested IPI or deadlock if both
CPUs happen to want to send an IPI to each other at the same time.

I've parked a kernel I've built that boots on my j6k at:
	ftp://gsyprf10.external.hp.com/kernels/c3000/2.6.14-rc1-pa1.tgz

If you want to give that a try and then compare the .config files,
that would be helpful.

> Would someone please help me?

I think the next step is to add a bug catcher that will panic
if/when one cpu fails to get the IPI spinlock or pending_ipi
is already set in ipi_send() (only works on 2-way).
Or something like that.  I have to think about this lot more.

hth,
grant
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> As discussed on irc:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=329888

This is a debian issue as far a I can tell.  I tried

      fic,m           %r23(%sr3,%r26)

with GNU assembler 2.16.91 20050814 and I don't see a problem.
However, I do see that we don't support the 2-bit space register
form (PA 2.0).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] binutils breaks hppa kernel build,
	bad operands of fic, m
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On Sat, Sep 24, 2005 at 10:45:40AM -0600, dann frazier wrote:
> As discussed on irc:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=329888

binutils-2.15 has this in include/opcodes/hppa.h:
{ "fdc",        0x04001280, 0xfc003fdf, "cZx(s,b)", pa10, 0},
{ "fdc",        0x04001280, 0xfc003fdf, "cZx(b)", pa10, 0},
{ "fic",        0x04000280, 0xfc001fdf, "cZx(S,b)", pa10, 0},
{ "fic",        0x04000280, 0xfc001fdf, "cZx(b)", pa10, 0},

And the binutils_2.16.1cvs20050902 version has only:
{ "fdc",        0x04001280, 0xfc00ffdf, "cZx(b)", pa10, 0},
{ "fdc",        0x04001280, 0xfc003fdf, "cZx(s,b)", pa10, 0},
{ "fic",        0x04000280, 0xfc001fdf, "cZx(S,b)", pa10, 0},

The order of the with 's' vs without 's' was switched and
in the process dropped one "fic" line.

Can binutils maintainer/folks please just add it back
in the new location?

Is the fix obvious enough or is a patch necessary?

thanks,
grant
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On Sat, Sep 24, 2005 at 01:33:15PM -0400, John David Anglin wrote:
> > As discussed on irc:
> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=329888
> 
> This is a debian issue as far a I can tell.  I tried
> 
>       fic,m           %r23(%sr3,%r26)
> 
> with GNU assembler 2.16.91 20050814 and I don't see a problem.

You are right - debian has a stale include file.
The picked up this version of the opcode/hppa.h file:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/include/opcode/hppa.h.diff?r1=1.55&r2=1.56&cvsroot=src&f=h

Debian needs to pick up the TOB opcode/hppa.h and life will be good again.

thanks,
grant

> However, I do see that we don't support the 2-bit space register
> form (PA 2.0).
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
> _______________________________________________
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On Sat, Sep 24, 2005 at 01:06:48PM -0600, Grant Grundler wrote:
> On Sat, Sep 24, 2005 at 01:33:15PM -0400, John David Anglin wrote:
> > > As discussed on irc:
> > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=329888
> > 
> > This is a debian issue as far a I can tell.  I tried
> > 
> >       fic,m           %r23(%sr3,%r26)
> > 
> > with GNU assembler 2.16.91 20050814 and I don't see a problem.
> 
> You are right - debian has a stale include file.

Sorry - I was wrong too.

I confused the bug report with a related problem on unstable
kernel builds:
...
  AS      arch/parisc/kernel/pacache.o
arch/parisc/kernel/pacache.S: Assembler messages:
arch/parisc/kernel/pacache.S:952: Error: Invalid operands 
arch/parisc/kernel/pacache.S:953: Error: Invalid operands 
arch/parisc/kernel/pacache.S:954: Error: Invalid operands 
...

Where line 952/953/etc are this format:
1:      fic,m           %r23(%r26)
        fic,m           %r23(%r26)
        fic,m           %r23(%r26)


> The picked up this version of the opcode/hppa.h file:
> http://sourceware.org/cgi-bin/cvsweb.cgi/src/include/opcode/hppa.h.diff?r1=1.55&r2=1.56&cvsroot=src&f=h

I'm pretty sure this diff introduces the error I saw.

> Debian needs to pick up the TOB opcode/hppa.h and life will be good again.

Sorry - my bad again.  TOB opcode/hppa.h is missing one variant of "fic"
as I mentioned in previous email. I had it right the first time around.

apologies for the confusion and hope this clarifies,
grant
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> binutils-2.15 has this in include/opcodes/hppa.h:
> { "fdc",        0x04001280, 0xfc003fdf, "cZx(s,b)", pa10, 0},
> { "fdc",        0x04001280, 0xfc003fdf, "cZx(b)", pa10, 0},
> { "fic",        0x04000280, 0xfc001fdf, "cZx(S,b)", pa10, 0},
> { "fic",        0x04000280, 0xfc001fdf, "cZx(b)", pa10, 0},

The last "fic" opcode entry is wrong.  It's using the wrong
instruction format, the mask is wrong, pa10 is wrong, etc.

> And the binutils_2.16.1cvs20050902 version has only:
> { "fdc",        0x04001280, 0xfc00ffdf, "cZx(b)", pa10, 0},
> { "fdc",        0x04001280, 0xfc003fdf, "cZx(s,b)", pa10, 0},
> { "fic",        0x04000280, 0xfc001fdf, "cZx(S,b)", pa10, 0},

Yes, I deleted the entry because there isn't implicit space
register selection for 'S' instructions.

> The order of the with 's' vs without 's' was switched and
> in the process dropped one "fic" line.

Changing the order of with 's' vs without 's' was intentional.
It generates better disassembly.  Give the new objdump a try
and you will see the difference.

> Can binutils maintainer/folks please just add it back
> in the new location?

We need a new pa20 format 24 entry.

> Is the fix obvious enough or is a patch necessary?

A patch is needed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Sep 24, 2005 at 09:27:22PM -0400, John David Anglin wrote:
> The last "fic" opcode entry is wrong.  It's using the wrong
> instruction format, the mask is wrong, pa10 is wrong, etc.

I don't think we realised this until now.  I suspect we've been
silently emitting bad code up until this point, and given that it's
in flush_kernel_icache_page, maybe it explains some of our occasional
crashes.

The code was previously:

        fic,m           %r23(%r26)

We're trying to flush kernel space at this point, so we can use any of
sr4-sr7.   I suspect before we were putting sr0 in, which could have
been flushing any random space instead of the one we wanted.  I'll
commit this change to the kernel source now.
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> > binutils-2.15 has this in include/opcodes/hppa.h:
> > { "fdc",        0x04001280, 0xfc003fdf, "cZx(s,b)", pa10, 0},
> > { "fdc",        0x04001280, 0xfc003fdf, "cZx(b)", pa10, 0},
> > { "fic",        0x04000280, 0xfc001fdf, "cZx(S,b)", pa10, 0},
> > { "fic",        0x04000280, 0xfc001fdf, "cZx(b)", pa10, 0},
> 
> The last "fic" opcode entry is wrong.  It's using the wrong
> instruction format, the mask is wrong, pa10 is wrong, etc.

The enclosed patch against binutils head adds the missing "fic"
entry.  I also noticed that we were missing a pa20 im5 variant for
"fdc".  This builds and checks with no regressions.  However,
the new entries aren't really tested.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: hppa.h
===================================================================
RCS file: /cvs/src/src/include/opcode/hppa.h,v
retrieving revision 1.59
diff -u -3 -p -r1.59 hppa.h
--- hppa.h	3 Aug 2005 15:08:52 -0000	1.59
+++ hppa.h	25 Sep 2005 01:58:35 -0000
@@ -755,6 +755,9 @@ static const struct pa_opcode pa_opcodes
 { "pdc",	0x04001380, 0xfc003fdf, "cZx(s,b)", pa10, 0},
 { "fdc",	0x04001280, 0xfc00ffdf, "cZx(b)", pa10, 0},
 { "fdc",	0x04001280, 0xfc003fdf, "cZx(s,b)", pa10, 0},
+{ "fdc",	0x04003280, 0xfc00ffff, "5(b)", pa20, FLAG_STRICT},
+{ "fdc",	0x04003280, 0xfc003fff, "5(s,b)", pa20, FLAG_STRICT},
+{ "fic",	0x040013c0, 0xfc00dfdf, "cZx(b)", pa20, FLAG_STRICT},
 { "fic",	0x04000280, 0xfc001fdf, "cZx(S,b)", pa10, 0},
 { "fdce",	0x040012c0, 0xfc00ffdf, "cZx(b)", pa10, 0},
 { "fdce",	0x040012c0, 0xfc003fdf, "cZx(s,b)", pa10, 0},
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> On Sat, Sep 24, 2005 at 09:27:22PM -0400, John David Anglin wrote:
> > The last "fic" opcode entry is wrong.  It's using the wrong
> > instruction format, the mask is wrong, pa10 is wrong, etc.
> 
> I don't think we realised this until now.  I suspect we've been
> silently emitting bad code up until this point, and given that it's
> in flush_kernel_icache_page, maybe it explains some of our occasional
> crashes.
> 
> The code was previously:
> 
>         fic,m           %r23(%r26)

I've committed a fix to binutils head.  The above should now be
accepted when generating PA 2.0 code.  However, I'd probably
avoid using this feature for awhile.  It looks like the bug has
been present since ~ 1996.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] binutils breaks hppa kernel build,
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On Sat, Sep 24, 2005 at 11:24:31PM -0400, John David Anglin wrote:
> > On Sat, Sep 24, 2005 at 09:27:22PM -0400, John David Anglin wrote:
> > > The last "fic" opcode entry is wrong.  It's using the wrong
> > > instruction format, the mask is wrong, pa10 is wrong, etc.
> > 
> > I don't think we realised this until now.  I suspect we've been
> > silently emitting bad code up until this point, and given that it's
> > in flush_kernel_icache_page, maybe it explains some of our occasional
> > crashes.
> > 
> > The code was previously:
> > 
> >         fic,m           %r23(%r26)
> 
> I've committed a fix to binutils head.  The above should now be
> accepted when generating PA 2.0 code.  However, I'd probably
> avoid using this feature for awhile.  It looks like the bug has
> been present since ~ 1996.

This is in a file that's used on pa1.1 processors too, so I've gone with
specifying sr4 explicitly.  Thanks for fixing this bug and exposing our
bug ...
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On Thu, Sep 29, 2005 at 11:13:45AM -0400, John David Anglin wrote:
> Specifying sr0 will cause fdc to use the space id in sr0.  There's no
> mapping to sr4-7.  This mapping is available when generating PA 2.0
> code with current cvs binutils, but only if you *do not* specify sr0.
> In PA 2.0, there are two different instruction formats for fdc (2 and
> 3-bit space register formats).

Uhm, in my copy of the book, page 7-51 shows two formats, both with
a 2-bit "s" field and clearly indicates a "space_select(s,...)" operation.

>   Only the 2-bit format has the mapping
> to sr4-7.  The 2-bit format is not available when generating PA 1.x code.

page 5-171 of my PA 1.1 book shows only a 2-bit 's' field (and indexed
by register) for FDC. Did you flip to the next page and are by
accident reading the FIC (which only has 3-bit s field) instruction?

> 
> > -	asm volatile("fdc 0(%0)" : : "r" (pdir_ptr));
> > +	asm volatile("fdc %%r0(%%sr0,%0)" : : "r" (pdir_ptr));
> 
> For this to work in PA 1.x, you need to load the space id selected
> by %0 into sr0, or ensure the kernel space id is put in sr0.  Doesn't
> sr4 have the kernel space id in it?

Yes and Yes. But my reading of the PA1.1 arch says it *only* has a 2-bit
s field.

thanks,
grant
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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Re: 2.6.14-rc2-pa2 ccio patch
Date: Thu, 29 Sep 2005 18:04:03 +0000
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Grant Grundler wrote:
> On Thu, Sep 29, 2005 at 12:35:54AM -0600, Grant Grundler wrote:
> 
[...]

> -	asm volatile("fdc 0(%0)" : : "r" (pdir_ptr));
> +	asm volatile("fdc %%r0(%%sr0,%0)" : : "r" (pdir_ptr));
>  	asm volatile("sync");
did I well undurstand my reading (pa11_acd.pdf):
the mnemonics 'fdc,cmplt x(s,b)' and 'fic,cmplt x(sr,b)' refer well x as 'the index register'.

So may be have a common writing:
--- arch/parisc/kernel/pacache.S.Orig   2005-09-29 16:09:03.000000000 +0200
+++ arch/parisc/kernel/pacache.S        2005-09-29 18:21:56.000000000 +0200
@@ -227,7 +227,7 @@

  fimanyloop:                                    /* Loop if LOOP >= 2 */
         ADDIB>          -1, %r31, fimanyloop    /* Adjusted inner loop decr */
-       fice            0(%sr1, %arg0)
+       fice            %r0(%sr1, %arg0)
         fice,m          %arg1(%sr1, %arg0)      /* Last fice and addr adjust */
         movb,tr         %arg3, %r31, fimanyloop /* Re-init inner loop count */
         ADDIB<=,n       -1, %arg2, fisync       /* Outer loop decr */
@@ -269,7 +269,7 @@

  fdmanyloop:                                    /* Loop if LOOP >= 2 */
         ADDIB>          -1, %r31, fdmanyloop    /* Adjusted inner loop decr */
-       fdce            0(%sr1, %arg0)
+       fdce            %r0(%sr1, %arg0)
         fdce,m          %arg1(%sr1, %arg0)      /* Last fdce and addr adjust */
         movb,tr         %arg3, %r31, fdmanyloop /* Re-init inner loop count */
         ADDIB<=,n       -1, %arg2, fdsync       /* Outer loop decr */
--- arch/parisc/kernel/signal.c.Orig    2005-09-29 16:02:29.000000000 +0200
+++ arch/parisc/kernel/signal.c 2005-09-29 18:34:32.000000000 +0200
@@ -296,7 +296,7 @@
         struct rt_sigframe __user *frame;
         unsigned long rp, usp;
         unsigned long haddr, sigframe_size;
-       struct siginfo si;
+
         int err = 0;
  #ifdef __LP64__
         compat_int_t compat_val;
@@ -627,9 +627,9 @@

                         /* Stack is 64-byte aligned, and we only
                          * need to flush 1 cache line */
-                       asm("fdc 0(%%sr3, %0)\n"
+                       asm("fdc %%r0(%%sr3, %0)\n"
                             "sync\n"
-                           "fic 0(%%sr3, %0)\n"
+                           "fic %%r0(%%sr3, %0)\n"
                             "sync\n"
                             : : "r"(regs->gr[30]));

====<>====

(this hunk:
-       struct siginfo si;
to get rid of a compiler warning)

Hth,
	Joel
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Subject: Re: [parisc-linux] Re: 2.6.14-rc2-pa2 ccio patch
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> Yes and Yes. But my reading of the PA1.1 arch says it *only* has a 2-bit
> s field.

Oops, my mix up (fic/fdc confusion).  However, don't add sr0 to the
instruction.  Specifying %r0 instead of '0' is the issue.  Strictly,
the immediate form is only allowed in PA 2.0.  However, if the assembler
doesn't accept it let me know.

I'm going to take a crack at trying to fix PA 1.0 to 1.1 promotion
this weekend.  This is currently tied to the the lax matching used
with PA 1.0 instructions.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Sep 29, 2005 at 07:21:38PM -0400, John David Anglin wrote:
> > Yes and Yes. But my reading of the PA1.1 arch says it *only* has a 2-bit
> > s field.
> 
> Oops, my mix up (fic/fdc confusion).

no problem - I've done worse.

>   However, don't add sr0 to the instruction.

Why not? I added it because I didn't like assumption the caller
to *io_pdir_entry was passing KERNEL_SPACE argument. If that's going
to forever be true, then we may as well hardcode KERNEL_SPACE
in both ccio and sba io_pdir_entry() routines instead of
taking a space_id parameter. Would save us a few cycles.

>   Specifying %r0 instead of '0' is the issue.  Strictly,
> the immediate form is only allowed in PA 2.0.  However, if the assembler
> doesn't accept it let me know.

That's what it looked like to me too.
It now uses %r0.

> I'm going to take a crack at trying to fix PA 1.0 to 1.1 promotion
> this weekend.  This is currently tied to the the lax matching used
> with PA 1.0 instructions.

Like I said, this isn't a problem that bothers me.

thanks!
grant
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> I'm going to take a crack at trying to fix PA 1.0 to 1.1 promotion
> this weekend.  This is currently tied to the the lax matching used
> with PA 1.0 instructions.

I believe that binutils (cvs head) should now correctly handle promotion.
See http://sources.redhat.com/ml/binutils/2005-10/msg00085.html.  The
change also fixes a problem with "fdc" that was introduced when I added
the PA 2.0 immediate form.  It turns out that I broke the PA 1.0 register
immediate form.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > Yes and Yes. But my reading of the PA1.1 arch says it *only* has a 2-bit
> > s field.
> 
> Oops, my mix up (fic/fdc confusion).  However, don't add sr0 to the
> instruction.

I see that the change was committed with the addition of "%sr0" in the
fdc instructions.  Explicitly mentioning %sr0 in instructions with 2-bit
s-fields is discouraged.  It's unnecessary and there could be confusion
regarding its effect.  In instructions with 3-bit s-fields, %sr0 is
treated in the same manner as the other space registers.  I may add
a warning about using %sr0 in instructions with 2-bit s-fields.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: 2.6.14-rc2-pa2 ccio patch
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> May I abuse of your presious time: I also recompile the kernel for a d380=
> 
> which uses ccio-dma in its term uses insn lci (see attached precompile .s=

I'll look at it.  As I recall, there wasn't much information about lha.
If lha and lci are the same, we should be using lci in the disassebly.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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On Tue, Oct 11, 2005 at 05:46:48PM +0200, Fabio Bizzi wrote:
> Yesterday night I've tried the following:
> 
> 1) Started installation form sarge netboot
> 2) Standard partitioning with a "/" partition fo about 35.5GB
> 3) Run installation till reboot question
> 
> Instead rebooting I've started a shell, unmounted "/target" and started 
> a fsck to check the root partition with this output:
> 
> 8<---8<---8<---8<---8<---8<---8<---8<---8<---8<---8<---8<---8<---8<---8<---
> 
> ~ # fsck.ext3 /dev/discs/disc0/part5 -f
> e2fsck 1.37 (21-Mar-2005)
> Pass 1: Checking inodes, blocks, and sizes
> Inode 1311742 has illegal block(s).  Clear<y>? yes
> 
> Illegal block #12 (3271557120) in inode 1311742.  CLEARED.
> Illegal block #13 (637534208) in inode 1311742.  CLEARED.
...

Ok. Definitely problems with this. Something wrong with high inode counts.
Can someone map where those inodes live on the disk?
Ie which block number would they reside on (about)?

> So, I think that sarge netinst kernel probably has a bug for partition 
> bigger than 18GB. :(

Maybe...does using two partitions solve avoid those issues?

> Do you think I'd do:
> 
> 1) Tring an installation from "etch" netinst CD
> or
> 2) Continue with sarge netinst and use two 18GB partition

Your choice. two 18GB partions should work fine too.
My preference would be to try the "etch" netinst CD but I don't
have a clue if that works better or not for C200.

> Please let me know because at home I have no fast internet connection 
> and if I'd try the sarge option I'll download at office the installation 
> CD and the packages DVD.
> 
> Thanks a lot to everybody! :)

welcome - and thanks for your patience and tenacity.

ciao!
grant


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Subject: [parisc-linux] Re: Trying to install sarge on a C200
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On Tue, Oct 11, 2005 at 05:46:48PM +0200, Fabio Bizzi wrote:
> Yesterday night I've tried the following:
> 
> 1) Started installation form sarge netboot
> 2) Standard partitioning with a "/" partition fo about 35.5GB
> 3) Run installation till reboot question
> 
> Instead rebooting I've started a shell, unmounted "/target" and started 
> a fsck to check the root partition with this output:
> 
> 8<---8<---8<---8<---8<---8<---8<---8<---8<---8<---8<---8<---8<---8<---8<---
> 
> ~ # fsck.ext3 /dev/discs/disc0/part5 -f
> e2fsck 1.37 (21-Mar-2005)
> Pass 1: Checking inodes, blocks, and sizes
> Inode 1311742 has illegal block(s).  Clear<y>? yes
> 
> Illegal block #12 (3271557120) in inode 1311742.  CLEARED.
> Illegal block #13 (637534208) in inode 1311742.  CLEARED.
...

Ok. Definitely problems with this. Something wrong with high inode counts.
Can someone map where those inodes live on the disk?
Ie which block number would they reside on (about)?

> So, I think that sarge netinst kernel probably has a bug for partition 
> bigger than 18GB. :(

Maybe...does using two partitions solve avoid those issues?

> Do you think I'd do:
> 
> 1) Tring an installation from "etch" netinst CD
> or
> 2) Continue with sarge netinst and use two 18GB partition

Your choice. two 18GB partions should work fine too.
My preference would be to try the "etch" netinst CD but I don't
have a clue if that works better or not for C200.

> Please let me know because at home I have no fast internet connection 
> and if I'd try the sarge option I'll download at office the installation 
> CD and the packages DVD.
> 
> Thanks a lot to everybody! :)

welcome - and thanks for your patience and tenacity.

ciao!
grant
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Subject: [parisc-linux] Re: Trying to install sarge on a C200
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Hi Grant,

Grant Grundler wrote:
[...]
> Your choice. two 18GB partions should work fine too.
> My preference would be to try the "etch" netinst CD but I don't
> have a clue if that works better or not for C200.

Ok, let's try etch... ;)

>>Please let me know because at home I have no fast internet connection 
>>and if I'd try the sarge option I'll download at office the installation 
>>CD and the packages DVD.

Ok, my c200 has a cdrom but no dvd-rom and no internet broadband 
connection, so for sarge I've copied the two DVD-ROM to my laptop and 
published by http, and apt works.
For etch I've seen that cdrom images are aivailable but noy dvd-rom 
images, I don't want burn 14 cdrom ;) so how can I download the 
installation archives to my laptop?

Thank You! :)

> welcome - and thanks for your patience and tenacity.

Where there is the will there is the way! ;)
I want to install debian to my C200 and I want to start using it!!! :)
If I can help you with debugs or compilation or else let me know.

Thanks again! :)

Ciao.

	Fabio.
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On 12/10/05, Thibaut VARENE <varenet@gmail.com> wrote:
> Awesome. If that's a 64bit kernel, then the problem is most likely
> gone (and we should remove it from the wiki KnownIssues list ;)

Heh, seems I was 5 minutes faster than you:

 Info for "KnownIssues":
   2005-10-12 08:48:01 =093375 =09=09MaxGrabert =09XFS seems to work, some
sound issues seem to be fixed as well


BTW, looking at the ad1889 wiki page it still says that ALSA is broken ...

Greetings,
   Max



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On Fri, Oct 14, 2005 at 07:37:16AM +0200, Joel Soete wrote:
> > sr0?
> > The above change was for %r0, not %sr0.
> > Or can you point out exactly what you are referring to?
>
> Ah it was so a good question :=)
> let see so the first:
> RCS file: /var/lib/cvs/linux-2.6/drivers/parisc/ccio-dma.c,v
> retrieving revision 1.24
> retrieving revision 1.25
> diff -u -r1.24 -r1.25
> --- linux-2.6/drivers/parisc/ccio-dma.c	2005/09/11 19:47:11	1.24
> +++ linux-2.6/drivers/parisc/ccio-dma.c	2005/10/12 15:25:21	1.25
> @@ -613,7 +613,7 @@
>  	** the real mode coherence index generation of U2, the PDIR entry
>  	** must be flushed to memory to retain coherence."
>  	*/
> -	asm volatile("fdc 0(%0)" : : "r" (pdir_ptr));
> +	asm volatile("fdc %%r0(%%sr0,%0)" : : "r" (pdir_ptr));

Ah ok!

> (I agree that it was in my original proposal, you can blame me ...)

No. My bad. I should have known better.


> finaly (what confusing my tiny mind: your previous related patch just removed it):
> RCS file: /var/lib/cvs/linux-2.6/drivers/parisc/sba_iommu.c,v
> retrieving revision 1.39
> retrieving revision 1.40
> diff -u -r1.39 -r1.40
> --- linux-2.6/drivers/parisc/sba_iommu.c	2005/10/09 21:08:38	1.39
> +++ linux-2.6/drivers/parisc/sba_iommu.c	2005/10/12 15:30:28	1.40
> @@ -743,9 +743,8 @@
>  	 * (bit #61, big endian), we have to flush and sync every time
>  	 * IO-PDIR is changed in Ike/Astro.
>  	 */
> -	if (ioc_needs_fdc) {
> -		asm volatile("fdc %%r0(%0)\n\tsync" : : "r" (pdir_ptr));
> -	}
> +	if (ioc_needs_fdc)
> +		asm volatile("fdc %%r0(%%sr0,%0)" : : "r" (pdir_ptr));
>  }
> 
> 
> ====<>====
> (why I said 'resurected')

ok - I'll remove that as well. I suspect that crept in when
I switch machines and didn't properly sync the source trees.

thanks,
grant
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John David Anglin writes:
> I just wanted to note that installing libc6/2.3.5-6.0.1 causes a variety
> of regressions in the GCC testsuite relative to 2.3.2.  See for example
> http://gcc.gnu.org/ml/gcc-testresults/2005-10/msg00576.html versus
> http://gcc.gnu.org/ml/gcc-testresults/2005-09/msg00946.html.  These
> are in addition to the issues caused by building libc with GCC 4.x
> (e.g., http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=327351).

just as a notice, that libc6/2.3.5-7 is built with 4.0 again.

  Matthias
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Subject: [parisc-linux] Re: 2.6.14-rc2-pa6 issues on C3000
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On Wed, Oct 19, 2005 at 02:54:42PM -0400, John David Anglin wrote:
> > Nice that works a lot better (you get rid of may Warning) eventhought didn't
> > boot yet (again synchronize_irq()) :_(
> 
> rc2-pa5 doesn't boot on c3k with default config.  I built it with
> gcc-4.0 (debian).  It dies with a data alignment exception (code=26)
> in kref_get (if I remember correctly).

I'm not seeing that with my j6k.
But I'm building using "stable" gcc (gcc version 3.3.5 (Debian 1:3.3.5-13)).
I also have enabled SMP and DEBUG_SLAB in my kernel builds.
Diff between c3000_config and my mine is appended (It's short).

Kernel should warn about, but handle data alignment exceptions.
So this sounds like two bugs: one for the misaligned data and
another that the kernel isn't handling it properly.
I expect this is another exposure that gcc 3.x was hiding by
automatically aligning some data types.

> There's also some undefined symbols in a module.

Ok - those should be easy to sort out. I'll look at that tonight.
I haven't noticed it on my builds.

thanks,
grant


grundler <505>diff /boot/config-2.6.14-rc2-pa6 arch/parisc/configs/c3000_defconfig 
3,4c3,4
< # Linux kernel version: 2.6.14-rc2-pa5
< # Mon Oct 17 19:39:53 2005
---
> # Linux kernel version: 2.6.14-rc2-pa1
> # Sat Sep 24 18:33:00 2005
22d21
< CONFIG_LOCK_KERNEL=y
40d38
< # CONFIG_CPUSETS is not set
70d67
< CONFIG_STOP_MACHINE=y
83,84c80
< CONFIG_SMP=y
< CONFIG_HOTPLUG_CPU=y
---
> # CONFIG_SMP is not set
98d93
< CONFIG_NR_CPUS=4
916a912,913
> CONFIG_SND_AD1889=y
> # CONFIG_SND_AD1889_OPL3 is not set
939,940d935
< CONFIG_SND_AD1889=y
< # CONFIG_SND_AD1889_OPL3 is not set
1280c1275
< CONFIG_DEBUG_SLAB=y
---
> # CONFIG_DEBUG_SLAB is not set
1287d1281
< # CONFIG_DEBUG_RWLOCK is not set
grundler <506>
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> On Wed, Oct 19, 2005 at 06:53:40PM -0400, John David Anglin wrote:
> > Ok, these are the warnings from make modules_install install:
> > 
> > if [ -r System.map -a -x /sbin/depmod ]; then /sbin/depmod -ae -F System.map  2.
> > 6.14-rc2-pa7; fi
> > WARNING: /lib/modules/2.6.14-rc2-pa7/kernel/net/ipv6/xfrm6_tunnel.ko needs unkno
> > wn symbol xfrm6_rcv_spi
> 
> To help rule out toolchain differences, I repeated building -pa7 on
> "unstable" debian using c3000_defconfig. That's using gcc v4.0.2.

The problem is caused by using cvs binutils-2.16.91 20051016.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: 2.6.14-rc2-pa6 issues on C3000
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Xref: news.gmane.org gmane.linux.ports.parisc:23181

On Thu, Oct 20, 2005 at 01:43:24PM -0400, John David Anglin wrote:
> > On Wed, Oct 19, 2005 at 06:53:40PM -0400, John David Anglin wrote:
> > > Ok, these are the warnings from make modules_install install:
> > > 
> > > if [ -r System.map -a -x /sbin/depmod ]; then /sbin/depmod -ae -F System.map  2.
> > > 6.14-rc2-pa7; fi
> > > WARNING: /lib/modules/2.6.14-rc2-pa7/kernel/net/ipv6/xfrm6_tunnel.ko needs unkno
> > > wn symbol xfrm6_rcv_spi
> > 
> > To help rule out toolchain differences, I repeated building -pa7 on
> > "unstable" debian using c3000_defconfig. That's using gcc v4.0.2.
> 
> The problem is caused by using cvs binutils-2.16.91 20051016.

Ah ok - this is currently installed on gsyprf7 (aka ios):
ii  binutils       2.16.1cvs20050 The GNU assembler, linker and binary utiliti

(debian unstable)

thanks,
grant
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From: Thibaut VARENE <T-Bone@parisc-linux.org>
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Subject: [parisc-linux] Ctrl-C bug again
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Xref: news.gmane.org gmane.linux.ports.parisc:23182

Pa,

I hit the damned "Ctrl-C" bug again on my j6k SMP today with mpg123,
running CVS HEAD 64bit smp: Linux version 2.6.14-rc5-pa1
(varenet@Esperanza) (gcc version 3.4.5 200508215

Backtrace:
 [<00000000102ef6cc>] copy_from_user+0x34/0x40
 [<00000000000ac8dc>] snd_pcm_lib_write_transfer+0x144/0x178 [snd_pcm]
 [<00000000000acd7c>] snd_pcm_lib_write1+0x46c/0x688 [snd_pcm]
 [<00000000000ad034>] snd_pcm_lib_write+0x9c/0x158 [snd_pcm]
 [<0000000000101414>] snd_pcm_oss_sync+0x32c/0x348 [snd_pcm_oss]
 [<0000000000102624>] snd_pcm_oss_release+0x3c/0x240 [snd_pcm_oss]
 [<00000000101b93bc>] __fput+0xe4/0x310
 [<00000000101b966c>] fput+0x84/0x90
 [<00000000101b7438>] filp_close+0x90/0xd8
 [<00000000101b7558>] sys_close+0xd8/0x110
 [<0000000010107fa8>] syscall_exit+0x0/0x14


Kernel Fault: Code=3D15 regs=3D00000000f9400880 (Addr=3D0000000000024000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  0000000000000000 00000000102ef698 0000000000001e90 00000000fe16600c
r04-07  0000000000093000 0000000000022ed0 0000000000001803 0000000000021028
r08-11  00000000fc092c28 00000000000007a4 00000000000acd7c 00000000fe955ae8
r12-15  00000000000007aa 00000000000007aa 00000000000bad90 0000000000021028
r16-19  00000000000981a0 0000000000000000 00000000000ad034 0000000000000000
r20-23  0000000000000000 0000000000000000 0000000000000000 0000000000024000
r24-27  0000000000000d70 00000000fe16713c 000000000000001f 0000000010575000
r28-31  000000000000f480 0000000000022ed0 00000000f9400880 00000000fe16600c
sr0-3   00000000002f2000 0000000000000000 0000000000000000 0000000000412800
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 000000000000000=
0
fr04-07  0000000010575000 00000000ff8fb000 0000000000000020 fffffffffffffc1=
8
fr08-11  0000000000000000 0000000000000802 0000000000000000 000000001057500=
0
fr12-15  00000000ff8fb000 0000000014a23ac4 ffffffffffffffe8 0000000014a23ac=
0
fr16-19  0000000014a23ad0 0000000010575000 0000000000000000 000000001057500=
0
fr20-23  000f000000000000 0000000000000802 0000000000000000 000000000000002=
0
fr24-27  0000000000000000 0000000000000802 00000000101b6d98 00000000105c500=
0
fr28-31  00000000ff8fb000 0000000000000802 0000000000000000 00000000ff8fcbc=
0

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000102ef238 00000000102e=
f23c
 IIR: 0ee850b6    ISR: 0000000000000000  IOR: 0000000000024000
 CPU:        1   CR30: 00000000f9400000 CR31: 0000000080000000
 ORIG_R28: 0000000000093000
 IAOQ[0]: pa_memcpy+0x88/0x2b0
 IAOQ[1]: pa_memcpy+0x8c/0x2b0
 RP(r2): 0x1e90
Kernel panic - not syncing: Kernel Fault

HTH

T-Bone

--
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [parisc-linux] Ctrl-C bug again
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On Sat, Oct 22, 2005 at 01:09:02AM +0200, Thibaut VARENE wrote:
>  IIR: 0ee850b6    ISR: 0000000000000000  IOR: 0000000000024000
>  CPU:        1   CR30: 00000000f9400000 CR31: 0000000080000000
>  ORIG_R28: 0000000000093000
>  IAOQ[0]: pa_memcpy+0x88/0x2b0
>  IAOQ[1]: pa_memcpy+0x8c/0x2b0
>  RP(r2): 0x1e90
> Kernel panic - not syncing: Kernel Fault
>

I wonder... was snd-ad1889/alsa a module? 
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Xref: news.gmane.org gmane.linux.ports.parisc:23184

On 10/22/05, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> On 10/22/05, Kyle McMartin <kyle@mcmartin.ca> wrote:
> > On Sat, Oct 22, 2005 at 01:09:02AM +0200, Thibaut VARENE wrote:
> > >  IIR: 0ee850b6    ISR: 0000000000000000  IOR: 0000000000024000
> > >  CPU:        1   CR30: 00000000f9400000 CR31: 0000000080000000
> > >  ORIG_R28: 0000000000093000
> > >  IAOQ[0]: pa_memcpy+0x88/0x2b0
> > >  IAOQ[1]: pa_memcpy+0x8c/0x2b0
> > >  RP(r2): 0x1e90
> > > Kernel panic - not syncing: Kernel Fault
> > >
> >
> > I wonder... was snd-ad1889/alsa a module?
>
> yes indeed
> I'll try again with built-in driver

here you go:

Backtrace:
 [<00000000102ef6cc>] copy_from_user+0x34/0x40
 [<00000000103b15c4>] snd_pcm_lib_write_transfer+0x144/0x178
 [<00000000103b1a64>] snd_pcm_lib_write1+0x46c/0x688
 [<00000000103b1d1c>] snd_pcm_lib_write+0x9c/0x158
 [<00000000103bb824>] snd_pcm_oss_sync+0x32c/0x348
 [<00000000103bca34>] snd_pcm_oss_release+0x3c/0x240
 [<00000000101b93bc>] __fput+0xe4/0x310
 [<00000000101b966c>] fput+0x84/0x90
 [<00000000101b7438>] filp_close+0x90/0xd8
 [<00000000101b7558>] sys_close+0xd8/0x110
 [<0000000010107fa8>] syscall_exit+0x0/0x14


Kernel Fault: Code=3D15 regs=3D00000000fd560880 (Addr=3D000000000000b000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  0000000000000000 00000000000000aa 0000000000001e90 00000000ff9e600c
r04-07  0000000010600d00 0000000000009ed0 0000000000001803 0000000000008028
r08-11  00000000fd766828 00000000000007a4 00000000103b1a64 00000000ff9298e8
r12-15  00000000000007aa 00000000000007aa 000000001053f880 0000000000008028
r16-19  00000000105d5300 0000000000000000 00000000103b1d1c 000000002c64ef76
r20-23  0000000052fad5f8 00000000531540b4 000000003016512d 000000000000b000
r24-27  0000000000000d70 00000000ff9e713c 000000000000001f 0000000010600d00
r28-31  000000000000f480 0000000000009ed0 00000000fd560880 00000000ff9e600c
sr0-3   0000000000291000 0000000000000000 0000000000000000 00000000004c5800
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 000000000000000=
0
fr04-07  0000000010600d00 00000000fff95000 0000000000000020 fffffffffffffc1=
8
fr08-11  0000000000000000 0000000000000802 0000000000000000 0000000010600d0=
0
fr12-15  00000000fff95000 0000000014a8aac4 ffffffffffffffe8 0000000014a8aac=
0
fr16-19  0000000014a8aad0 0000000010600d00 0000000000000000 0000000010600d0=
0
fr20-23  000f000000000000 0000000000000802 0000000000000000 000000000000002=
0
fr24-27  0000000000000000 0000000000000802 00000000101b6d98 000000001065800=
0
fr28-31  00000000fff95000 0000000000000802 0000000000000000 00000000ff9b2bc=
0

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000102ef238 00000000102e=
f23c
 IIR: 0ee850b6    ISR: 0000000000000000  IOR: 000000000000b000
 CPU:        1   CR30: 00000000fd560000 CR31: 0000000080000000
 ORIG_R28: 0000000010600d00
 IAOQ[0]: pa_memcpy+0x88/0x2b0
 IAOQ[1]: pa_memcpy+0x8c/0x2b0
 RP(r2): 0x1e90
Kernel panic - not syncing: Kernel Fault

Simple testcase:

while :; do mpg123 foo.mp3; done

then hold down ctrl-C. You should be able to take down the box in a
few attempts like that...

--
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: Sarge, Etch and my C200 (Was: Trying to install sarge on a C200)
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Xref: news.gmane.org gmane.linux.ports.parisc:23185

Fabio Bizzi wrote:
[...]
> I'll try again tomorrow evening with sarge netinst with the hope that 
> the filesystem will not be broken by the 2.6.8-2 kernel until I'll 
> install the 2.6.12-10 kernel.
> 
> After kernel swapping I'll try to do a full tasksel installation to see 
> if the new kernel does not complain.

Work done! :)
All worked fine, I've installed with sarge netinst CD, before reboot in 
shell I've installed the 2.6.12-10 32bit kernel and after the reboot 
I've done a base-config with a full tasksel selection and installation.

2.2 GB installed without scsi or fs troubles. :)

Thanks to Ryan Bradetich, Grant Grundler, Devid H. Barr and Kyle 
McMartin for their help, clues and patience!

Now My C200 Rocks!!! :)

Ciao.

	Fabio.


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> To really understand these numbers, you need three things: the amount
> of memory on the system, the L2 (and L3?) cache sizes,

http://en.wikipedia.org/wiki/PA-RISC

"An interesting aspect of the PA-RISC line is that most of its
generations have no Level 2 cache. Instead large Level 1 caches are
used, formerly as separate chips connected by a bus, now integrated
on-chip. Only the PA-7100LC and PA-7300LC had L2 caches."

randolph
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On Wed, 2005-10-26 at 23:06 -0600, Ryan Bradetich wrote:
> K460-smp(3):
> 	cold		44m36.961s	93m25.844s	35m37.427s
> 	warm		44m19.736s	93m9.127s	35m49.683s
> 
> K460-smp(4):
> 	cold		41m59.795s	114m6.654s	46m20.045s
> 	warm		41m39.792s	114m29.156s	46m6.385s

that's pretty bad 3->4 scaling.

Could you just check that you don't have irqbalanced running.  On a K or
D system, it would cause great inefficiencies in interrupt rethrowing.

Thanks,

James


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On Fri, Oct 28, 2005 at 10:08:19AM +0800, Randolph Chung wrote:
> > To really understand these numbers, you need three things: the amount
> > of memory on the system, the L2 (and L3?) cache sizes,
> 
> http://en.wikipedia.org/wiki/PA-RISC
> 
> "An interesting aspect of the PA-RISC line is that most of its
> generations have no Level 2 cache. Instead large Level 1 caches are
> used, formerly as separate chips connected by a bus, now integrated
> on-chip. Only the PA-7100LC and PA-7300LC had L2 caches."

Technically, PA-8800 and 8900 have an L2 cache.  However, it's completely
transparent to software.
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Subject: [parisc-linux] Re: 2.6.14 has been released,
	please all checks build and configs, we upload today :)
Date: Fri, 28 Oct 2005 17:34:06 +0900
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On Fri, Oct 28, 2005 at 10:02:39AM +0200, Frederik Schueler wrote:
> Hello,
> 
> On Fri, Oct 28, 2005 at 07:37:40AM +0200, Sven Luther wrote:
> >  CONFIG_SCSI_SATA_INTEL_COMBINED=y has been added.
> >  Do you want to make this change [G]lobal, per-[A]rch, or per-[F]lavour? [GAF]
> 
> we could make this global, as other sata stuff is global too.
> 
> >  CONFIG_SCSI_QLA2XXX has been changed from 'n' to 'm'.
> >  Do you want to make this change [G]lobal, per-[A]rch, or per-[F]lavour? [GAF]
> 
> this should be made global, or the
> remove-references-to-removed-drivers.patch should be fixed to remove
> this (in the debian kernel useless) Kconfig option.

I think Svenl was playing with an unpatched tree, and these problems
went away. Well I'm certain that the second one did.

He and I tagged 2.6.14-1 and are planning to upload to unstable
powerpc and i386 rsn. I guess there will be a second upload
in the not to distant future, as some FTBFS bugs are solved.

For now souces are in
http://packages.vergenet.net/testing/linux-2.6-2.6.14/
These may change if the i386 build fails, though that
seems unlikely at this point.

Also, can someone look into HPPA, or point me at which patch to use?
http://packages.vergenet.net/testing/linux-2.6-2.6.14/linux-2.6_2.6.14-1-hppa.log.gz

-- 
Horms
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Subject: Re: [parisc-linux] Re: 2.6.14 has been released,
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> > On Fri, Oct 28, 2005 at 05:34:06PM +0900, Horms wrote:
> > > Also, can someone look into HPPA, or point me at which patch to use=
?
> > >
http://packages.vergenet.net/testing/linux-2.6-2.6.14/linux-2.6_2.6.14-1-=
hppa.log.gz
> > 
> > I know I *said* not to use the -pa0 kernel, but it's booted fine for =
me
> > on a K460 and an N4000.   Any other reports?
> 
> Not -pa0 but 2.6.14-rc5-pa1 has been up for more than 7 days now on
> my c3k.  Nothing since 2.6.8.1-pa11 has been this stable.  However,
> gsyprf11 with 64-bit SMP hasn't been as stable (two crashes doing
> GCC builds and checks in roughly the same period).
> 
Dave I fully agree with you: I even report numerous succesfull stress tes=
t
(only up system) on some b180 and b2k 32bit and the same success with
reverting latest frp tausq patch (i.e. re-enabling fpr) ;-)

Still have to do:
    o have to stress more d380 (32bit smp system)
    o test gcc-4.1 build (on various system's 32/64 bit smp/up)

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On Fri, 2005-10-28 at 07:20 -0600, Matthew Wilcox wrote:
> On Fri, Oct 28, 2005 at 05:34:06PM +0900, Horms wrote:
> > Also, can someone look into HPPA, or point me at which patch to use?
> > http://packages.vergenet.net/testing/linux-2.6-2.6.14/linux-2.6_2.6.14-1-hppa.log.gz
> 
> I know I *said* not to use the -pa0 kernel, but it's booted fine for me
> on a K460 and an N4000.   Any other reports?
> 
> http://cvs.parisc-linux.org/download/linux-2.6/patch-2.6.14-pa0.gz

Thanks - I've committed this patch for now.
-- 
dann frazier <dannf@dannf.org>

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Xref: news.gmane.org gmane.linux.ports.parisc:23192

Hi,

As many of you noticed, Linus pulled my git tree and a whole big chunk of
our diff went upstream on Friday. This email is just a quick note to let
everyone know what got pulled, and how much further we have to go to
mainline, as well as what will go next.

Status:

344K    linus_to_parisc_1.diff
460K    patch-2.6.14-pa0
------------------------------
116K	remaining

Remaining chunks is approximately:
	5K 	ad1889		<- I will handle
	24K	sym53c8xx	<- willy will handle
	27K	compat
	7.3K	opl3
	20K	oss harmony & ad1889	<- will remove oss ad1889
	2K	misc
	4K	tulip
	--------------
	~89K accounted for

The rest is approximately what has been committed since I took a snapshot
of the diff for splitting up. I intend to now track CVS commits 
approximately as they happen, with manual quality control.

The plan I have in my head right now is to have a git tree of parisc
specific things that Linus can constantly pull from, a git tree of
compat related things, and a third parisc-linux tree, which will merge
the other two, and have other modifications that probably shouldn't
go upstream. The goal is to have something I can build kernels out of
for all my machines.

A note on commits; please make it really clear who should get credit
for things if you're committing a patch from someone else. I had a bit
of difficulty tracking down who did "the most work" on some commits,
apologies if anyone feels neglected.

Please also try to seperate out commits that modify architecture
independent code from parisc related commits. This will make it much
easier for me to split out what needs to go where when I go to merge.

Cheers,
	Kyle

I've appended the shortlog and diffstat from what Linus merged:

Carlos O'Donell:
  [PARISC] Implement 5 argument clone.

Grant Grundler:
  [PARISC] Update sba_iommu from parisc tree
  [PARISC] Update ccio-dma from parisc tree
  [PARISC] Allow STI_CONSOLE access to some FONTS
  [PARISC] Make sure use of RFI conforms to PA 2.0 and 1.1 arch docs
  [PARISC] Move pa_tlb_lock to tlb_flush.h
  [PARISC] Update bitops from parisc tree
  [PARISC] Use work queue in LED/LCD driver instead of tasklet.
  [PARISC] Replace uses of __LP64__ with CONFIG_64BIT
  [PARISC] Minor iosapic.c cleanup
  [PARISC] Add sync required after fdc to enforce insn ordering
  [PARISC] More informative error message in pcibios_link_hba_resources
  [PARISC] Cleanup whitespace and handle proc_mkdir() failures in pci-dma.c
  [PARISC] Document history of PDC_NARROW as it is now obsolete
  [PARISC] Update Kconfig for itimer selection
  [PARISC] Add ECANCELED to errno.h
  [PARISC] Define pgprot_noncached macro in pgtable.h
  [PARISC] Fix copy_user_page_asm to NOT access past end of page
  [PARISC] Properly specify index field to I/D cache flush ops
  [PARISC] Specify level to fix binutils level promotion bug
  [PARISC] Properly specify section alignment for real2.S

James Bottomley:
  [PARISC] Fix the alloc_slabmgmt panic
  [PARISC] Remove the spurious do_softirq calls from entry.S

Jens Axboe:
  [PARISC] Add new ioprio_{set,get} syscalls

Jesper Juhl:
  [PARISC] kfree cleanups to ioctl32.c

Kyle McMartin:
  [PARISC] Add ability for prctl to change unaligned trap behaviour
  [PARISC] Initialize serial spinlocks in superio.c
  [PARISC] Add other CRT_ID for newer cards to grfioctl.h
  [PARISC] defconfig updates
  [PARISC] Update MAINTAINERS and CREDITS

Matthew Wilcox:
  [PARISC] Convert parisc_device tree to use struct device klists
  [PARISC] Change the driver names so /sys/bus/parisc/drivers/ looks better
  [PARISC] Convert parisc_device to use struct resource for hpa
  [PARISC] Update dino from parisc tree
  [PARISC] Update spinlocks from parisc tree
  [PARISC] Reorganize sticore probe routine to be a little less convoluted
  [PARISC] Fix compile warning in pci.h
  [PARISC] Update pdc console from parisc tree
  [PARISC] Explicitly specify sr4 when flushing kernel space
  [PARISC] Update scsi drivers from parisc tree
  [PARISC] Fix mux.c driver
  [PARISC] Update parisc specific input code from parisc tree

Randolph Chung:
  [PARISC] Take into account nullified insn and lock functions for profiling
  [PARISC] Replace some calls to bl with b,l or bv to use longer offsets
  [PARISC] Disable use of fpregs in pa_memcpy
  [PARISC] Prevent signal loops if we have a problem setting up a frame
  [PARISC] Update minimum compiler version and CROSS_COMPILE for parisc64
  [PARISC] Avoid use of floating point in the kernel

Stuart Brady:
  [PARISC] Update harmony from parisc tree
  [PARISC] Fix parisc_setup_cache_timing to choose a better flush threshold

Sven Schnelle:
  [PARISC] Add NETPOLL support to lasi_82596

Thibaut Varene:
  [PARISC] Add printing of fpregs state to stack dump

 CREDITS                             |    6 
 MAINTAINERS                         |    9 
 arch/parisc/Kconfig                 |    5 
 arch/parisc/Makefile                |   13 
 arch/parisc/configs/712_defconfig   |  456 ++++++++++++++----------
 arch/parisc/configs/a500_defconfig  |  551 +++++++++++++++++------------
 arch/parisc/configs/b180_defconfig  |  309 ++++++++++------
 arch/parisc/configs/c3000_defconfig |  676 +++++++++++++++++++++++-------------
 arch/parisc/defconfig               |  618 ++++++++++++++++++++++++--------
 arch/parisc/kernel/cache.c          |   10 
 arch/parisc/kernel/drivers.c        |  273 +++++++++-----
 arch/parisc/kernel/entry.S          |  188 ++++------
 arch/parisc/kernel/firmware.c       |   18 
 arch/parisc/kernel/head.S           |   73 +--
 arch/parisc/kernel/ioctl32.c        |   32 -
 arch/parisc/kernel/pacache.S        |  186 +++++----
 arch/parisc/kernel/pci-dma.c        |   48 +-
 arch/parisc/kernel/pci.c            |    3 
 arch/parisc/kernel/pdc_cons.c       |   46 --
 arch/parisc/kernel/perf.c           |   12 
 arch/parisc/kernel/process.c        |   34 +
 arch/parisc/kernel/processor.c      |    8 
 arch/parisc/kernel/real2.S          |   36 -
 arch/parisc/kernel/signal.c         |   22 -
 arch/parisc/kernel/smp.c            |    2 
 arch/parisc/kernel/syscall.S        |   37 -
 arch/parisc/kernel/syscall_table.S  |   10 
 arch/parisc/kernel/time.c           |   26 -
 arch/parisc/kernel/traps.c          |   37 +
 arch/parisc/kernel/unaligned.c      |   16 
 arch/parisc/lib/fixup.S             |    4 
 arch/parisc/lib/memcpy.c            |    2 
 drivers/input/keyboard/hil_kbd.c    |   28 +
 drivers/input/keyboard/hilkbd.c     |    8 
 drivers/input/mouse/hil_ptr.c       |   33 +
 drivers/input/serio/gscps2.c        |   17 
 drivers/input/serio/hil_mlc.c       |   14 
 drivers/input/serio/hp_sdc.c        |    8 
 drivers/net/lasi_82596.c            |   30 +
 drivers/parisc/asp.c                |    6 
 drivers/parisc/ccio-dma.c           |  142 ++++---
 drivers/parisc/ccio-rm-dma.c        |    2 
 drivers/parisc/dino.c               |   42 +-
 drivers/parisc/eisa.c               |    4 
 drivers/parisc/gsc.c                |   11 
 drivers/parisc/hppb.c               |   10 
 drivers/parisc/iosapic.c            |    2 
 drivers/parisc/lasi.c               |    4 
 drivers/parisc/lba_pci.c            |   14 
 drivers/parisc/led.c                |  225 +++++------
 drivers/parisc/pdc_stable.c         |    2 
 drivers/parisc/sba_iommu.c          |  164 +++++---
 drivers/parisc/superio.c            |    3 
 drivers/parisc/wax.c                |    2 
 drivers/parport/parport_gsc.c       |    5 
 drivers/scsi/lasi700.c              |    6 
 drivers/scsi/zalon.c                |    4 
 drivers/serial/8250_gsc.c           |    6 
 drivers/serial/mux.c                |   11 
 drivers/video/console/Kconfig       |    8 
 drivers/video/console/sticore.c     |  132 +++----
 include/asm-parisc/assembly.h       |   71 +++
 include/asm-parisc/bitops.h         |  290 +++++++--------
 include/asm-parisc/errno.h          |    1 
 include/asm-parisc/grfioctl.h       |    2 
 include/asm-parisc/led.h            |    3 
 include/asm-parisc/parisc-device.h  |    7 
 include/asm-parisc/pci.h            |    2 
 include/asm-parisc/pgtable.h        |    2 
 include/asm-parisc/processor.h      |   19 +
 include/asm-parisc/psw.h            |   51 +-
 include/asm-parisc/ptrace.h         |    2 
 include/asm-parisc/spinlock.h       |    5 
 include/asm-parisc/spinlock_types.h |    8 
 include/asm-parisc/system.h         |   50 +-
 include/asm-parisc/tlbflush.h       |   29 +
 include/asm-parisc/types.h          |    2 
 include/asm-parisc/unistd.h         |   16 
 include/linux/hil.h                 |  483 +++++++++++++++++++++++++
 include/linux/hil_mlc.h             |  168 ++++++++
 include/linux/hp_sdc.h              |  300 +++++++++++++++
 include/linux/input.h               |    1 
 sound/parisc/harmony.c              |  116 +++++-
 sound/parisc/harmony.h              |   17 
 84 files changed, 4265 insertions(+), 2089 deletions(-)
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On Sat, Oct 29, 2005 at 03:10:09PM -0400, Kyle McMartin wrote:
> A note on commits; please make it really clear who should get credit
> for things if you're committing a patch from someone else. I had a bit
> of difficulty tracking down who did "the most work" on some commits,
> apologies if anyone feels neglected.

Don't worry about it too much.  I was mangling stuff for years with
manual patches and never got a complaint.

Thanks for all the work you put into this.
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On Sat, Oct 29, 2005 at 06:02:53PM -0600, Grant Grundler wrote:
> No. Older PDC (pre-Astro) probably doesn't implement that bit.
> Sorry, I don't have time to investigate exactly which ones do
> besides the Astro boxes and PAT PDC.
> 
> And even for SBA, I'd like to make this self modifying code
> that writes a NOP over the FDC in if it detects the system
> doesn't need FDC. That would get rid of another branch in
> a critical code path.

Is it possible this bit is set incorrectly on PA8800 boxes and that's
the cause of our cache problems?

(I doubt it, but wouldn't it be nice if that were the case ;-)
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From: Paul Weissmann <paul@doorslam.net>
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Subject: [parisc-linux] Historical ties between MKLinux and PA-RISC Linux
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Hi,
	I'm currently trying to mop up the Linux and 'Other OS'
pages on OpenPA and populate them with more useful content

I'd be very grateful if people here could help me with insight
into the historical ties between PA-RISC Linux and the previous
open-source operating systems (MKLinux/hppa, Utah Mach etc.)

Interesting items:

 - Influences these OSs had on the current PA-RISC Linux port
 - General history of the open-source/development OSs on hppa
 - Technical judgements on the previous efforts
 - History of the PA-RISC Linux port

Please keep me on cc: as I'm not subscribed.

Thanks.

        - paul

-- 
 the mind cannot win over the matter, for once the mind is asked
 to do too much, it quickly shows itself to be matter as well.
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Subject: Re: [parisc-linux] Historical ties between MKLinux and PA-RISC Linux
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On Thu, Nov 03, 2005 at 12:10:22PM +0100, Paul Weissmann wrote:
> I'd be very grateful if people here could help me with insight
> into the historical ties between PA-RISC Linux and the previous
> open-source operating systems (MKLinux/hppa, Utah Mach etc.)
> 
> Interesting items:
> 
>  - Influences these OSs had on the current PA-RISC Linux port
>  - General history of the open-source/development OSs on hppa
>  - Technical judgements on the previous efforts
>  - History of the PA-RISC Linux port
> 
> Please keep me on cc: as I'm not subscribed.

I got involved in the parisc-linux port because the MKLinux port said
it worked on every 715 except the 715/33 ... and I only had a pair of
715/33 machines at the time.  I don't remember looking at the MKLinux
port for ideas, though others may have done so.

I did a paper for OLS2000 which is basically an early 'state of the
port': http://ftp.parisc-linux.org/docs/willy/ols2.pdf

There used to be a weekly report, which is still at
http://www.parisc-linux.org/weekly/ though as you can see, it's been a
while since that was updated.

There have been some 'state of the port' emails, typically in january:
http://lists.parisc-linux.org/pipermail/parisc-linux/2004-January/022058.html
http://lists.parisc-linux.org/pipermail/parisc-linux/2004-February/022309.html
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/018884.html
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-January/018898.html

I think we kind of forgot for 2005 ;-)
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On 11/3/05, Matthew Wilcox <matthew@wil.cx> wrote:

> >  - History of the PA-RISC Linux port
> >
> There used to be a weekly report, which is still at
> http://www.parisc-linux.org/weekly/ though as you can see, it's been a
> while since that was updated.
>
> There have been some 'state of the port' emails, typically in january:

As for the "ESIEE Team" contribution/history, there are some info here:
http://www.pateam.org/history.html
http://www.pateam.org/work.html
and for much older status reports:
http://www.pateam.org/accomplished.html

If you need more specific detail, my personnal knowledge starts by the
end of 2001. Others are much more knowledgeable than me anyway ;-)

HTH

T-Bone

--
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Eggert Ehmke wrote:
> 
> It's a  Hp 8132+, this is the output of 
> cat /proc/cpuinfo:
> processor       : 0
> cpu family      : PA-RISC 1.1e
> cpu             : PA7300LC (PCX-L2)
> cpu MHz         : 132.000000
> model           : 9000/778/B132L+
> model name      : Merlin L2+ 132 (9000/778/B132L)
> hversion        : 0x00005030
> 
> It runs under Debian right now.
> Eggert
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

Just burnt a fresh copy of the 2005.1 minimal install iso and fired
it up on my B132L (not quite the same as your B132L+ model - but
pretty darned close).

CDROM is connected internally to the narrow SE bus (lasi). 9GB
disk on the high voltage diff controller (you have regular fast+wide
instead of HVD don't you).

Worked like a charm. CD was found on /dev/cdroms/cdrom0 as expected.

CPUINFO:
processor       : 0
cpu family      : PA-RISC 1.1e
cpu             : PA7300LC (PCX-L2)
cpu MHz         : 132.000000
model           : 9000/778/B132L
model name      : Merlin L2 132 (9000/778/B132L)
hversion        : 0x00005010
sversion        : 0x00000481
I-cache         : 64 KB
D-cache         : 64 KB (WB, 0-way associative)
ITLB entries    : 96
DTLB entries    : 96 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (8 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 87.85
software id     : 2012763504

dmesg is attached.

Do you have the external CDROM on the narrow or wide SCSI bus?
Put it on the narrow interface if it isn't already and double
check your termination. Is the CDROM detected and listed during
SCSI probing?

Try burning another copy of the cd. What did you use to burn it -
I used plain old cdrecord.

Sorry I can 't be more helpful, but on the evidence so far I don't
know what more to suggest.

-Andy




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Linux version 2.6.12.2-pa2-livecd32 (root@hake) (gcc version 3.3.5 (Gentoo 3.3.5-r1, pie-8.7.7.1)) #1 Thu Jul 28 17:56:02 UTC 2005
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005010 00000481 00000000 02020202 77f85570 100000f0 00000004 000000ba 000000ba
vers  00000008
CPUID vers 15 rev 8 (0x000001e8)
capabilities 0x2
model 9000/778/B132L
Total Memory: 384 MB
initrd: 27f09000-27fef455
initrd: reserving 17f09000-17fef455 (mem_max 18000000)
On node 0 totalpages: 98304
  DMA zone: 98304 pages, LIFO batch:31
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
LED display at f0190001 registered
Built 1 zonelists
Kernel command line:  TERM=linux root=/dev/ram0 init=/linuxrc cdroot looptype=squashfs loop=/livecd.squashfs hda=scsi console=tty0 sti=8/24 sti_font=VGA8x16 palo_kernel=0/vmlinux
ide_setup: hda=scsi
PID hash table entries: 2048 (order: 11, 32768 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 393216k available
Calibrating delay loop... 87.85 BogoMIPS (lpj=439296)
Mount-cache hash table entries: 512
checking if image is initramfs... it is
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Phantom PseudoBC GSC+ Port at 0xffc00000 [8] { 7, 0x0, 0x504, 0x00000 }
2. Merlin 132 Core FW-SCSI at 0xfff8c000 [8/12] { 4, 0x0, 0x03c, 0x00089 }
3. Merlin 132 Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x03c, 0x00081 },  additional addresses: 0xffd0c000 0xffc00000 
4. Merlin 132 Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x03c, 0x0008c }
5. Merlin 132 Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x03c, 0x00082 }
6. Merlin 132 Core LAN (802.3) at 0xffd07000 [8/16/6] { 10, 0x0, 0x03c, 0x0008a }
7. Merlin 132 Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x03c, 0x00074 },  additional addresses: 0xffd01000 0xffd03000 
8. Merlin 132 Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x03c, 0x0007b }
9. Merlin 132 Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x03c, 0x00084 }
10. Merlin 132 Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x03c, 0x00084 }
11. Merlin 132 Wax BA at 0xffe00000 [8/20] { 11, 0x0, 0x040, 0x0008e }
12. Merlin 132 Wax EISA BA at 0xfc000000 [8/20/5] { 11, 0x0, 0x040, 0x00090 },  additional addresses: 0xf0184000 
13. Merlin 132 Wax HIL at 0xffe01000 [8/20/1] { 10, 0x0, 0x040, 0x00073 }
14. Merlin 132 Wax RS-232 at 0xffe02000 [8/20/2] { 10, 0x0, 0x040, 0x0008c }
15. Coral SGC Graphics at 0xf4000000 [8/8] { 10, 0x0, 0x004, 0x00077 }
16. Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 0x00085 },  additional addresses: 0xf0011000 
17. Dino PCI Bridge at 0xfff80000 [8/0] { 13, 0x1, 0x680, 0x0000a }
18. Merlin L2 132 (9000/778/B132L) at 0xfffbe000 [62] { 0, 0x0, 0x501, 0x00004 }
19. Memory at 0xfffbf000 [63] { 1, 0x0, 0x060, 0x00009 }
20. Merlin+ 132 Dino PS/2 Port at 0xfff81000 [1] { 10, 0x0, 0x022, 0x00096 }
21. Merlin+ 132 Dino RS-232 at 0xfff83000 [3] { 10, 0x0, 0x022, 0x0008c }
CPU(s): 1 x PA7300LC (PCX-L2) at 132.000000 MHz
Whole cache flush 18808 cycles, flushing 275038852 bytes 39507518 cycles
Setting cache flush threshold to 40 (1 CPUs online)
Lasi version 0 at 0xffd00000 found.
wax at 0xffe00000 found.
Wax EISA Adapter found at 0xfc000000
Enumerating EISA bus
EISA: Probing bus 0 at 8:20:5
EISA: Mainboard HWPC000 detected.
EISA: Detected 0 cards.
Dino version 2.1 found at 0xfff80000
The GSCtoPCI (Dino hrev 1) bus converter found may exhibit
data corruption.  See Service Note Numbers: A4190A-01, A4191A-01.
Systems shipped after Aug 20, 1997 will not exhibit this problem.
Models affected: C180, C160, C160L, B160L, and B132L workstations.

Dino: No PCI devices enabled.
SCSI subsystem initialized
usbcore: registered new driver hub
unwind_init: start = 0x10499060, end = 0x104ccd70, entries = 13265
Squashfs 2.1 (released 2004/12/10) (C) 2002-2004 Phillip Lougher
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
SGI XFS with ACLs, security attributes, realtime, no debug enabled
SGI XFS Quota Management subsystem
Initializing Cryptographic API
EISA EEPROM at 0xf0184000
PDC Stable Storage facility v0.09
Soft power switch enabled, polling @ 0xf0140000.
STI GSC/PCI core graphics driver Version 0.9a
    id 2bcb015a-9a02587, conforms to spec rev. 8.04
    graphics card name: HPA4071B
    id 2d08c0a7-9a02587, conforms to spec rev. 8.07
    graphics card name: INTERNAL_EG_1280
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, INTERNAL_EG_1280, id: 2d08c0a7, mmio: 0xf8100000
fb1: stifb 1280x1024-32 frame buffer device, HPA4071B, id: 2bcb015a, mmio: 0xf4100000
Generic RTC Driver v1.07
serio: GSC PS/2 keyboard port at 0xffd08000 irq 21 @ 8:16:7
serio: GSC PS/2 mouse port at 0xffd08100 irq 21 @ 8:16:8
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq = 16) is a 16550A
ttyS1 at MMIO 0xffe02800 (irq = 26) is a 16550A
Serial: device 0xfff83000 not configured.
Enable support for Wax, Lasi, Asp or Dino.
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
zalon_probe: Zalon version 1, IRQ 67
ncr53c720-0: rev 0xf irq 67
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3g
  Vendor: SEAGATE   Model: ST39173WD         Rev: 5764
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target0:0:0: Beginning Domain Validation
 target0:0:0: asynchronous.
WIDTH IS 1
 target0:0:0: wide asynchronous.
 target0:0:0: Domain Validation skipping write tests
 target0:0:0: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
 target0:0:0: Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
  Vendor: COMPAQ    Model: CRD-254V          Rev: 1.06
  Type:   CD-ROM                             ANSI SCSI revision: 02
 target1:0:2: Beginning Domain Validation
 target1:0:2: asynchronous.
 target1:0:2: Ending Domain Validation
st: Version 20050312, fixed bufsize 32768, s/g segs 256
SCSI device sda: 17783240 512-byte hdwr sectors (9105 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 17783240 512-byte hdwr sectors (9105 MB)
SCSI device sda: drive cache: write back
 /dev/scsi/host0/bus0/target0/lun0: p1 p2 p3 p4 < p5 p6 p7 p8 >
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 0
Attached scsi generic sg1 at scsi1, channel 0, id 2, lun 0,  type 5
usbmon: debugs is not available
ehci_hcd: block sizes: qh 128 qtd 96 itd 192 sitd 96
ohci_hcd: 2004 Nov 08 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci_hcd: block sizes: ed 64 td 64
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.01:USB HID core driver
mice: PS/2 mouse device common for all mice
Found HIL bus at 0xffe01000, IRQ 24
input: AT Raw Set 2 keyboard on 8:16:7
HIL: no keyboard present.
input: HIL keyboard, ID -1 at 0xffe01000 (irq 24) found and attached
NET: Registered protocol family 2
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP established hash table entries: 16384 (order: 5, 131072 bytes)
TCP bind hash table entries: 16384 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 16384 bind 16384)
NET: Registered protocol family 1
NET: Registered protocol family 10
Disabled Privacy Extensions on device 1052804c(lo)
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
Freeing unused kernel memory: 368k freed
VFS: Can't find ext3 filesystem on dev sr0.
VFS: Can't find an ext2 filesystem on dev sr0.
SQUASHFS error: Can't find a SQUASHFS superblock on sr0
ISO 9660 Extensions: Microsoft Joliet Level 3
Unable to load NLS charset iso8859-15
Unable to load NLS charset iso8859-15
ISO 9660 Extensions: RRIP_1991A
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xffd07000, IRQ 18
eth0: 82596 at 0xffd07000, 00 60 B0 07 1C 2C IRQ 18.
eth0: link ok.
eth0: no IPv6 routers present

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On Fri, Nov 11, 2005 at 10:02:06AM +0000, Joel Soete wrote:
> Vesa Ruokonen wrote:
> >This problem was solved by using latest palo v1.9. I don't know
> >what was wrong or how it had changed since v1.5.

The bad news is that palo 1.9 doesn't necessarily work.  The same
lifimage which boots on nicol (N4000) won't boot on the rp8400.

> >Good news is Linux didn't panic on booting kernel, but bad
> >news are missing devices and lost serial console.
>
> Are you trying a smp kernel? (as it's a smp system that's what would seems 
> the most obvious ;-)
> 
> But did you also tried a up kernel? Is it the same behabiour in this case 
> (missing devices and lost serial console)?

The problem with missing devices is that there's a conflict (two devices
with the same hw path).  At that point, the PAT device enumeration code
gives up.  I've given Vesa a kernel which should fix this, but of course
palo isn't working.
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Subject: Re: [parisc-linux] tk8.4 +glibc 2.3.5 buid with gcc-4.0 SEGV
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> > I just found another pb with glibc 2.3.5-7 build with gcc-4.0:
> > # tkinfo
> > Segmentation fault (core dumped)

> > (gdb) target core core.14394
> > Using host libthread_db library "/lib/libthread_db.so.1".
> > Core was generated by `wish /usr/bin/tkinfo'.
> > Program terminated with signal 11, Segmentation fault.
> > #0  0x40e98d5c in ?? ()
> > (gdb) bt
> > #0  0x40e98d5c in ?? ()
> > Cannot find bounds of current function (@0x0), unwinding will fail.

This is probably in glibc.  Try with the debug versions.

  export LD_LIBRARY_PATH=/usr/lib/debug

Another trick is to disassemble around 0x40e98d5c.  You can see which
code caused the problem.  You may be able to manually unwind by looking
at the stack and registers even when gdb is confused.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] experimental gcc-4.1 packages
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experimental gcc-4.1 packages will be soon available in the experimental
distribution (currently stuck in NEW). In the meantime, the packages
can be found at http://people.debian.org/~doko/gcc-4.1/

  Matthias
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From: Stuart Brady <sdbrady@ntlworld.com>
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To: parisc-linux@lists.parisc-linux.org,
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Hi,

Firstly, I've just found that my HCRX-24 works with an LCD monitor.
This was news to me, as IIRC it had even failed to work with monitors
that claimed to support sync-on-green.  I hope that might help someone.

Secondly, I can confirm several problems reported by Johannes Raspe and
Andy Walker late last year:

1) The Tux colours are wrong.  I'll try to expand on that later.

2) The console colours aren't right... actually, the 'normal' colours
   work correctly, but the 'bright' colours are all white.  (Even bright
   black).  Switching to/from X seems to fix this.

3) X doesn't work properly in 32-bit mode.  It appears as though the X
   server is using 24-bit pixels, but the HCRX-24 card is expecting
   8-bits of padding per pixel...  So something like this:

   HCRX-24: R G B U|R G B U|R G B U|...
   X:       R G B|R G B|R G B|R G B|...

   That's consistent with the colour 'artefacts' that I'm seeing.  BTW,
   the right 1/4 of the screen is just whatever was left in the console
   before switching to X.  I'll have a look at this one, but I expect
   it's a bug in our STI code. :-(

Cheers,
-- 
Stuart Brady
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> Iirc jda is already aware of some dwarf pb (is it amoung?)

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24348.

I had asked Richard to install the generic part of the patch
referred to in the PR.  However, this hasn't happened yet.  I've
completed a patch to add dwarf2 exception support to the hpux
port.  I plan to submit it this evening.  Hopefully, this will
get things moving.

The patch includes a small change to the linux EH support.
Dynamic relocations are eliminated from the .eh_frame data.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] fix warnings when using _syscall# macros from
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On Wed, Nov 16, 2005 at 09:42:38AM -0700, Matthew Wilcox wrote:
> On Wed, Nov 16, 2005 at 04:38:47PM +0000, Mike Frysinger wrote:
> > On Wed, Nov 16, 2005 at 09:30:48AM -0700, Matthew Wilcox wrote:
> > > On Sun, Nov 13, 2005 at 11:53:42AM +0000, Mike Frysinger wrote:
> > > > if you try to declare a void function using the _syscall macros 
> > > > provided by asm-parisc/unistd.h, you'll get warnings about trying to
> > > > return from a non-void function ... i386 fixes this by typecasting

> > i noticed though when trying to do mmap:
> > mmap.c:16: warning: return makes pointer from integer without a cast
> 
> If you'd posted that example, I don't think I would have blinked ;-)
> Send a patch please ;-)

yeah sorry, i saw a warning and didnt really read it ... when i glanced
in the file i picked out the issue pretty quickly and hadnt tried to
reproduce again ... /me smacks self
-mike

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--- /usr/src/linux-2.6.git/include/asm-parisc/unistd.h
+++ uClibc/libc/sysdeps/linux/hppa/bits/syscalls.h
@@ -875,38 +875,38 @@
 #define _syscall0(type,name)						\
 type name(void)								\
 {									\
-    return K_INLINE_SYSCALL(name, 0);	                                \
+    return (type) K_INLINE_SYSCALL(name, 0);	                                \
 }
 
 #define _syscall1(type,name,type1,arg1)					\
 type name(type1 arg1)							\
 {									\
-    return K_INLINE_SYSCALL(name, 1, arg1);	                        \
+    return (type) K_INLINE_SYSCALL(name, 1, arg1);	                        \
 }
 
 #define _syscall2(type,name,type1,arg1,type2,arg2)			\
 type name(type1 arg1, type2 arg2)					\
 {									\
-    return K_INLINE_SYSCALL(name, 2, arg1, arg2);	                \
+    return (type) K_INLINE_SYSCALL(name, 2, arg1, arg2);	                \
 }
 
 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)		\
 type name(type1 arg1, type2 arg2, type3 arg3)				\
 {									\
-    return K_INLINE_SYSCALL(name, 3, arg1, arg2, arg3);	                \
+    return (type) K_INLINE_SYSCALL(name, 3, arg1, arg2, arg3);	                \
 }
 
 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4)		\
 {									\
-    return K_INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4);	        \
+    return (type) K_INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4);	        \
 }
 
 /* select takes 5 arguments */
 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)	\
 {									\
-    return K_INLINE_SYSCALL(name, 5, arg1, arg2, arg3, arg4, arg5);	\
+    return (type) K_INLINE_SYSCALL(name, 5, arg1, arg2, arg3, arg4, arg5);	\
 }
 
 #ifdef __KERNEL__
@@ -937,7 +937,7 @@
 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
 {									        \
-    return K_INLINE_SYSCALL(name, 6, arg1, arg2, arg3, arg4, arg5, arg6);	\
+    return (type) K_INLINE_SYSCALL(name, 6, arg1, arg2, arg3, arg4, arg5, arg6);	\
 }
 
 #ifdef __KERNEL_SYSCALLS__

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On Tue, Nov 15, 2005 at 07:59:18PM +0000, Stuart Brady wrote:
> 3) X doesn't work properly in 32-bit mode.  It appears as though the X
>    server is using 24-bit pixels, but the HCRX-24 card is expecting
>    8-bits of padding per pixel...  So something like this:
> 
>    HCRX-24: R G B U|R G B U|R G B U|...
>    X:       R G B|R G B|R G B|R G B|...
> 
>    That's consistent with the colour 'artefacts' that I'm seeing.  BTW,
>    the right 1/4 of the screen is just whatever was left in the console
>    before switching to X.  I'll have a look at this one, but I expect
>    it's a bug in our STI code. :-(

Thanks to Max Grabert for the suggestion: adding the following line to
the "Screen" section in xorg.conf works for me:

	DefaultFbBpp	32

I would have expected the X server to be able to find this out for
itself, so I'm not sure if there's still a bug here.  I can't see
anything obviously wrong with stifb, fwiw.

Cheers,
-- 
Stuart Brady
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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: [parisc-linux] [git pull] parisc-linux for 2.6.15
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Xref: news.gmane.org gmane.linux.ports.parisc:23206

Hi Linus,

This pull contains the last remnants of parisc divergence in parisc
specific files up to this point. At least, until someone commits to cvs.
Remaining changes in CVS are compat_signal and some ALSA stuff that will
be forwarded along to Jaroslav.

Before you consider whether to pull, I'd just like to double check
whether I made any mistakes in the process:

	! merged a bunch of patches

	$ git-send-pack $remote parisc	to master.kernel.org

	! merged some more, made a mistake, nuked tree

	$ git pull my tree from master.kernel.org and fixed up remotes to
	  point master:origin to your tree, and parisc:parisc to mine

	! merged some more patches, noticed I had accumulated a patch in the
	  branch from "origin" somehow since I branched

	$ git checkout -f master
	$ git pull origin
	$ git checkout -f parisc
	$ git pull . master		to merge up to your tree
	$ git-send-pack $remote --all	to master.kernel.org to update all
					branches(?)

However, in doing this, I accumulated one of those annoying
"Merge branch 'master'" messages. I looked at Jeff's pull requests, and
he didn't seem to have any in there. Is this process kosher? Should I do
more or less the same thing next time?

--

Please pull the `parisc' branch from,

master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git parisc

Which contains the following changesets,

 CREDITS                        |   12 
 arch/parisc/kernel/drivers.c   |    8 
 arch/parisc/kernel/entry.S     |    1 
 arch/parisc/kernel/inventory.c |    2 
 arch/parisc/kernel/ioctl32.c   |  546 -----------------------------------------
 arch/parisc/kernel/irq.c       |  110 ++++++--
 arch/parisc/kernel/perf.c      |   33 +-
 arch/parisc/kernel/ptrace.c    |    5 
 arch/parisc/kernel/signal.c    |    1 
 arch/parisc/kernel/smp.c       |   24 +
 arch/parisc/kernel/syscall.S   |    3 
 drivers/ide/Kconfig            |    2 
 drivers/isdn/hisax/Kconfig     |   12 
 drivers/isdn/pcbit/Kconfig     |    2 
 drivers/parisc/iosapic.c       |   26 +
 drivers/parisc/superio.c       |   35 +-
 drivers/serial/Kconfig         |    2 
 drivers/serial/mux.c           |   19 -
 include/asm-parisc/irq.h       |    5 
 include/asm-parisc/smp.h       |    7 
 include/asm-parisc/spinlock.h  |   19 -
 include/asm-parisc/tlbflush.h  |   16 -
 include/linux/mm.h             |    2 
 mm/mmap.c                      |    2 
 24 files changed, 245 insertions(+), 649 deletions(-)

Carlos O'Donell:
      [PARISC] Document some register usages in assembly files

Christoph Hellwig:
      [PARISC] move PA perf driver over to ->compat_ioctl
      [PARISC] remove drm compat ioctls handlers

Grant Grundler:
      [PARISC] Disable nesting of interrupts
      [PARISC] irq_affinityp[] only available for SMP builds
      [PARISC] Remove unused variable in signal.c

James Bottomley:
      [PARISC] Make sure timer and IPI execute with interrupts disabled
      [PARISC] Fix our interrupts not to use smp_call_function
      [PARISC] Add IRQ affinities
      [PARISC] Fix our spinlock implementation

Kyle McMartin:
      [PARISC] Fix uniprocessor build by dummying smp_send_all_nop()
      [PARISC] Make superio.c initialize before any driver needs it
      [PARISC] Update CREDITS entries
      Merge branch 'master'

Matthew Wilcox:
      [PARISC] Return PDC_OK when alloc_pa_dev fails to enumerate all devices
      [PARISC] Improve the error message when we get a clashing mod path
      [PARISC] Fix some compile problems in ptrace.c
      [PARISC] Always spinlock tlb flush operations to ensure preempt safety
      [PARISC] Fix compile warning caused by conflicting types of expand_upwards()
      [PARISC] Make Serial MUX depend on a specific bus type.
      [PARISC] Mention PA-RISC in NS87415 help
      [PARISC] Mark hisax and pcbit ISDN drivers as not for parisc

Ryan Bradetich:
      [PARISC] Make redirecting irq messages less noisy
      [PARISC] Compile fixups for serial/mux.c
      [PARISC] Define port->timeout to fix a long msleep in mux.c

Cheers,
	Kyle
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On Fri, 18 Nov 2005, Kyle McMartin wrote:
>
> This pull contains the last remnants of parisc divergence in parisc
> specific files up to this point. At least, until someone commits to cvs.
> Remaining changes in CVS are compat_signal and some ALSA stuff that will
> be forwarded along to Jaroslav.

Argh. I was tempted to not merge at this point, but since most of it is in 
the parisc subdirectories, I let it slide.

> Before you consider whether to pull, I'd just like to double check
> whether I made any mistakes in the process:

Ok, it has that unnecessary extra merge, but apart from that there doesn't 
seem to be anything actually _wrong_ with it. 

I don't mind some criss-cross merges, as long as they aren't common enough 
to make the history completely unreadable, and that was certainly not the 
case here.

I just ask for cleanliness - not totally sterile trees ;)

		Linus
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Xref: news.gmane.org gmane.linux.ports.parisc:23208

On 18/11/05, Linus Torvalds <torvalds@osdl.org> wrote:
>
> On Fri, 18 Nov 2005, Kyle McMartin wrote:
> >
> > This pull contains the last remnants of parisc divergence in parisc
> > specific files up to this point. At least, until someone commits to cvs=
.
> > Remaining changes in CVS are compat_signal and some ALSA stuff that wil=
l
> > be forwarded along to Jaroslav.
>
> Argh. I was tempted to not merge at this point, but since most of it is i=
n
> the parisc subdirectories, I let it slide.

I guess the less diff between the parisc tree and mainline, the more
happy we  (users & developers) are ;)

> > Before you consider whether to pull, I'd just like to double check
> > whether I made any mistakes in the process:
>
> Ok, it has that unnecessary extra merge, but apart from that there doesn'=
t
> seem to be anything actually _wrong_ with it.
>
> I don't mind some criss-cross merges, as long as they aren't common enoug=
h
> to make the history completely unreadable, and that was certainly not the
> case here.
>
> I just ask for cleanliness - not totally sterile trees ;)

I'm personally more the kinda guy who'll ask for a black&decker and some
WD40 and if something doesn't fit in properly.
I guess not everything IRL applies to CS ;)

Does this mean Linux/PA development is moving towards git in the near futur=
e?

Slan,
   Max
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Xref: news.gmane.org gmane.linux.ports.parisc:23209

So, the following went upstream to Linus yesterday:

	68K     linus_to_parisc_2.diff

Shortlog and diffstat are contained below.

The ide_toggle_bounce fix went upstream with Bartlomiej yesterday,
so that's another chunk out of our diff. I'll be maintaining a 
ad1889 git tree to upstream via the ALSA folks some of our other
changes.

Approximate remaining bits,

	100K    parisc_remainingish.diff

Which consists primarily of:

	-rw-r--r--  1 kyle kyle 22881 Nov 19 11:37 scsi
		(sym2 + 53c700 changes) [willy for sym2]
	
	-rw-r--r--  1 kyle kyle 29568 Nov 19 11:38 sound
		(oss harmony & ad1889 and alsa ad1889 changes)

	-rw-r--r--  1 kyle kyle 33188 Nov 19 11:40 compat
		(compat_signal)

	-rw-r--r--  1 kyle kyle 3676 Nov 19 11:41 tulip
		(tulip modifications)

The rest of the diff is primarily small little hacks and a few things
that need to be resolved with subsystem maintainers. For example,
James' fixes for pcmcia, and Grant's fixes for usb hid.

Cheers,
	Kyle

--

Carlos O'Donell:
      [PARISC] Document some register usages in assembly files

Christoph Hellwig:
      [PARISC] move PA perf driver over to ->compat_ioctl
      [PARISC] remove drm compat ioctls handlers

Grant Grundler:
      [PARISC] Disable nesting of interrupts
      [PARISC] irq_affinityp[] only available for SMP builds
      [PARISC] Remove unused variable in signal.c

James Bottomley:
      [PARISC] Make sure timer and IPI execute with interrupts disabled
      [PARISC] Fix our interrupts not to use smp_call_function
      [PARISC] Add IRQ affinities
      [PARISC] Fix our spinlock implementation

Kyle McMartin:
      [PARISC] Fix uniprocessor build by dummying smp_send_all_nop()
      [PARISC] Make superio.c initialize before any driver needs it
      [PARISC] Update CREDITS entries
      Merge branch 'master'

Matthew Wilcox:
      [PARISC] Return PDC_OK when alloc_pa_dev fails to enumerate all devices
      [PARISC] Improve the error message when we get a clashing mod path
      [PARISC] Fix some compile problems in ptrace.c
      [PARISC] Always spinlock tlb flush operations to ensure preempt safety
      [PARISC] Fix compile warning caused by conflicting types of expand_upwards()
      [PARISC] Make Serial MUX depend on a specific bus type.
      [PARISC] Mention PA-RISC in NS87415 help
      [PARISC] Mark hisax and pcbit ISDN drivers as not for parisc

Ryan Bradetich:
      [PARISC] Make redirecting irq messages less noisy
      [PARISC] Compile fixups for serial/mux.c
      [PARISC] Define port->timeout to fix a long msleep in mux.c

 CREDITS                        |   12 
 arch/parisc/kernel/drivers.c   |    8 
 arch/parisc/kernel/entry.S     |    1 
 arch/parisc/kernel/inventory.c |    2 
 arch/parisc/kernel/ioctl32.c   |  546 -----------------------------------------
 arch/parisc/kernel/irq.c       |  110 ++++++--
 arch/parisc/kernel/perf.c      |   33 +-
 arch/parisc/kernel/ptrace.c    |    5 
 arch/parisc/kernel/signal.c    |    1 
 arch/parisc/kernel/smp.c       |   24 +
 arch/parisc/kernel/syscall.S   |    3 
 drivers/ide/Kconfig            |    2 
 drivers/isdn/hisax/Kconfig     |   12 
 drivers/isdn/pcbit/Kconfig     |    2 
 drivers/parisc/iosapic.c       |   26 +
 drivers/parisc/superio.c       |   35 +-
 drivers/serial/Kconfig         |    2 
 drivers/serial/mux.c           |   19 -
 include/asm-parisc/irq.h       |    5 
 include/asm-parisc/smp.h       |    7 
 include/asm-parisc/spinlock.h  |   19 -
 include/asm-parisc/tlbflush.h  |   16 -
 include/linux/mm.h             |    2 
 mm/mmap.c                      |    2 
 24 files changed, 245 insertions(+), 649 deletions(-)
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On Sat, Nov 19, 2005 at 11:42:59AM -0500, Kyle McMartin wrote:
> So, the following went upstream to Linus yesterday:
> 
> 	68K     linus_to_parisc_2.diff
> 
> Shortlog and diffstat are contained below.

That's awesome!

> Approximate remaining bits,
> 
> 	100K    parisc_remainingish.diff

dude! That's even more awesome! :)

> 	-rw-r--r--  1 kyle kyle 3676 Nov 19 11:41 tulip
> 		(tulip modifications)

Tulips patches are mine and will likely remain mine.
akpm has them in his tree but jgarzik has neither signed them off
nor managed to get someone else to fix the issues to his liking.
This stale mate has been going on for, oh, maybe 3 years now with me
and for almost a year with akpm.

> The rest of the diff is primarily small little hacks and a few things
> that need to be resolved with subsystem maintainers. For example,
> James' fixes for pcmcia, and Grant's fixes for usb hid.

ugh. I'm pretty sure I posted the usb hid changes to the usb devel list.
If you point me at the diff, I'll repost it to USB devel to get a response.

Might ask Arnaldo De Carmelo if he could drive the PCMCIA changes back
to the maintainers....he's done that before.

kudos and thanks,
grant
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On Mon, Nov 21, 2005 at 08:16:19PM -0700, Matthew Wilcox wrote:
> > >  - Autobuilding.  This can change slightly as a result of how different
> > >    tagging is.  Do we want to just build every time there's a commit?
> > 
> > Something that anyone who has write access can trigger.
> > Just need to make sure we "commit" sets properly.
> > Will the Makefile commit will no longer trigger the auto-builder?
> 
> I was hoping we'd no longer have to do Makefile commits.  Maybe we still
> want to, though?
>

I dunno, maybe it would be easier to just manually thunk the autobuilder
with a commit id whenever we feel it's justified, and let the autobuilder
worry about the incrementing -pa numbers? There's an embedded CONFIG 
option that will embed the commit sha1sum in the kernel version, turning
this on in defconfigs would be good for everyone who pulls our tree
from git. 

Btw, if no one has used it yet, the git bisect stuff is pretty darn
cool.
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] d380: latest eth0: command unit timed out, status 
	resetting (seems to made panicing)
Date: Thu, 24 Nov 2005 07:51:59 +0100
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Cc: tsg45800 <tsg45800@scarlet.be>,
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> [...]
> > > 
> > > Difficult to analyse as it seems erratic.
> > Not any more true ;<(
> > 
> > Because of change of fw rules, I don't have any more cvs access ;<(, =
also I
> > grab the tarball on p-l.org. When I 'scp linux-xxx D380NAME', after s=
ome 4Mb
> > the same behaviour: 
> >     1/ "eth0: command unit timed out, status resetting." appears at c=
ons
> >     2/ a short time after the system panics.
> > 
> weird, this 'scp linux-xxx D380NAME' pb doesn't _seem_ to re-occure wit=
h same
> system runing this time 2.6.15-rc2-pa1 (always 32bit up)??
> 
Pb not solved: occures today again :<( (couldn't just reproduced with sim=
ple test)

Joel=0A=0A-------------------------------------------------------=0ANOTE!=
 My email address is changing to ... @scarlet.be=0APlease make the necess=
ary changes in your address book. =0A=0A

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From: Mike Frysinger <vapier@gentoo.org>
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Subject: [parisc-linux] add link to the view GIT page on kernel.org
Date: Sat, 26 Nov 2005 05:34:41 -0500
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be nice if this page:
http://www.parisc-linux.org/faq/git.html

contained a link to the viewgit page:
http://www.kernel.org/git/?p=linux/kernel/git/kyle/parisc-2.6.git

cause then i wouldnt have to go search for it :)
-mike
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Subject: [parisc-linux] FLT CBFB on B1000 when accessing second graphics card
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Hi,

I'm trying to setup Debian 3.1r0a (sarge) on a B1000 with two graphics
card. The first one is the original A4977A Visualize EG rev. 03, as
more powerful display card for the graphical desktop we installed a
Matrox Millenium II with 2MB RAM. We inserted the card at slot number
5, the first 32-bit slot for PCI devices and marked as secondary
graphic card slot.

Now, the setup and everything else went through smoothly, even the
first setup of the X server using the original display card went
pretty fine, but only with 8-bit colors. That's why we built in the
Matrox card. It is recognized by the system and displayed using lspci.

What comes now is that if we try to start the X server using the
second card the system switches the card and immediatly fails with the
error code FLT CBFB (shown in the front LCD display).

I posted the symptom to debian-hppa and was then forwared by Grant
Grundler to this mailing list to post my concern.

The goal of the system is to boot the system with the original card
(as is does already), but use the secondary card (Matrox in that case)
as display for the desktop environment in 16-bit colors, at least.

Here are the required informations like kernel version, used hardware
and hex dump of HPMC:

Kernel version: 2.6.8-2-32-smp #1 SMP parisc GNU/Linux (Debian 3.1r0a)
Hardware: HP Visualize 9000/785/B1000
Remote card: no
Graphical console in use
Palo command line: 2/vmlinux root=3D/dev/sda7 initrd=3D2/initrd.img HOME=3D=
/
Kernel is 32-bit (according the versioning, not modified or self-compiled)

Register dumps:
PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information -----------------

Timestamp =3D
  Mon Nov  28 16:24:09 GMT 2005    (20: 05: 11: 28: 16: 24: 09)

HPMC Chassis Codes =3D 2cbd0  2500b  2cbfb

General Registers 0 - 31
00-03   0000000000000000  0000000000822218  000000000027da2b  000000000085e=
9a8
04-07   0000000000000ff1  0000000040158ff1  0000000000000001  000000000085e=
9a8
08-11   00000000006ed000  000000000085e9a8  0000000000000000  0000000000000=
002
12-15   00000000007c2a18  00000000006e4800  00000000008485f0  00000000bff00=
168
16-19   00000000007c7218  0000000000000005  0000000000000002  0000000049814=
a58
20-23   0000000040158000  0000000000000001  0000000000000005  0000000000000=
001
24-27   0000000000000001  0000000040158ff1  000000000085e9a8  00000000007af=
a18
28-31   000000000085e9a8  0000000000000151  00000000bff10800  000000004079d=
dbf

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000=
000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000=
000
08-11   0000000000001f4c  0000000000000000  00000000000000c0  0000000000000=
01b
12-15   0000000000000000  0000000000000000  0000000000110000  00000000fe000=
000
16-19   0000004a72fabf1c  0000000000000fa6  000000004073fba3  000000000ca01=
014
20-23   00000000a607ffe4  4000000005d58ff1  000000000006000f  0000000080000=
000
24-27   00000000003eb000  000000001c82c000  00000000ffffffff  00000000fffff=
fff
28-31   00000000ffffffff  00000000ffffffff  000000002c5dc000  0000000010468=
000
Space Registers 0 - 7

00-03   00000000          00000fa6          00000000          00000fa6
04-07   00000fa6          00000fa6          00000fa6          00000fa6

IIA Space                    =3D 0x0000000000000fa6
IIA Offset                   =3D 0x000000004073fba7
Check Type                   =3D 0x20000000
CPU State                    =3D 0x9e000004
Cache Check                  =3D 0x00000000
TLB Check                    =3D 0x00000000
Bus Check                    =3D 0x0030103b
Assist Check                 =3D 0x00000000
Assist State                 =3D 0x00000000
Path Info                    =3D 0x00000000
System Responder Address     =3D 0x000000fff9017ff1
System Requestor Address     =3D 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000  0000000000000=
000
04-07   4084d00000000000  101313a4101ad880  2fad014b00000001  0000000000000=
000
08-11   2faede4000000002  2faea00000000002  00000000103f11d0  10934058103f1=
000
12-15   2faeeab800000002  2faea00000000002  0000000010468000  0000000010109=
448
16-19   0000000f103f22e0  0000000f103f22e0  0000000000000000  0000000100000=
01f
20-23   f0000174f000017c  1046f8101018d340  0000000000000013  0000001300000=
000
24-27   0000000100000000  3fe0000000000000  412e848000000000  000000002edd3=
57c
28-31   2f4eea202fae9bc0  00000000101a8ccc  000000001048b810  109340673b9ac=
a00


=B49000/785 B,C,J Workstation Unarchitected (per-CPU)=B4, rev 1, 140 bytes:

Check Summary                =3D 0xcb81041008000000
Available Memory             =3D 0x0000000020000000
CPU Diagnose Register 2      =3D 0x0201000000000004
CPU Status Register 0        =3D 0x2420c20000000000
CPU Status Register 1        =3D 0x8002000000000000
SADD LOG                     =3D 0x00c0000000000000
Read Short LOG               =3D 0xc18400fff9017ff1
ERROR_STATUS                 =3D 0x0000000000100010
MEM_ADDR                     =3D 0x000001ff3fffffff
MEM_SYND                     =3D 0x0000000000000000
MEM_ADDR_CORR                =3D 0x000001ff3fffffff
MEM_SYND_CORR                =3D 0x0000000000000000
RUN_DATA_HIGH                =3D 0xc1bff0fffed08040
RUN_DATA_LOW                 =3D 0xc1bff0fffed08040
RUN_CTRL                     =3D 0x0000021c00001418
RUN_ADDR                     =3D 0xc1bff0fffed08040
System Responder Path        =3D 0x00ffffffffffffff


HPMC PIM Analysis Information:

Timestamp =3D
  Mon Nov  28 16:24:09 GMT 2005    (20:05:11:28:16:24:09)


=B49000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)=B4, rev 0, 1304 b=
ytes:

A Data I/O Fetch Timeout occured while CPU 0 was
requesting information from a device with the address 0xfff9017ff1.


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observerd the Broadcast Error.  It did not lo=
g
any additional information about the HPMC.

(LPMC Information: everything's 0)

Memory Error Log Information:

No memory errors logged

I/O Module Error Log Information:


Timestamp =3D
  Mon Nov  28 16:24:09 GMT 2005    (20:05:11:28:16:24:09)


=B49000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)=B4, rev 0, 228 by=
tes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048
   1    0x0003e000   0x1e0cc009   0x00000000f9017ff0
   2    ----------   0x2e0cc009   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    0x00000000   0x3e0cc009   0x00000000fed38048
   5    ----------   0x5e0cc009   ------------------
   6    0x00000000   0x6e0cc009   0x00000000fed3c048
   7    ----------   0x7e0cc009   ------------------

System.map: http://www.badongo.com/file.php?file=3DSystem.map+B1000__2005-1=
1-30_System.map.bz2

I hope the information I provided is quite near what you expected to
get reported.

Regards, Thomas
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Xref: news.gmane.org gmane.linux.ports.parisc:23215

On Wednesday 30 November 2005 7:21 am, Thomas Klinger wrote:
> I'm trying to setup Debian 3.1r0a (sarge) on a B1000 with two graphics
> card. The first one is the original A4977A Visualize EG rev. 03, as
> more powerful display card for the graphical desktop we installed a
> Matrox Millenium II with 2MB RAM. ...
> 
> What comes now is that if we try to start the X server using the
> second card the system switches the card and immediatly fails with the
> error code FLT CBFB (shown in the front LCD display).

I don't follow parisc development enough to know whether this
scenario is supposed to work.  Based on what I do know about
HP chipsets and the ia64 kernel, I expect this to fail for the
following reason:

In general, X is not smart enough to completely initialize video
cards, because the necessary documentation is usually not public.
So the usual strategy is to execute the option ROM on the card.
For the primary card, system firmware usually runs the ROM (or is
smart enough to initialize the card directly) before booting the
OS.

But secondary cards are usually not initialized by system firmware,
so X has to run the option ROM before it can use the card.  The
code in the option ROM assumes there is only one video card in the
system, and that it has MMIO from 0xA0000-0xBFFFF and IO ports from
0x3B0-0x3DF.

When you have two video cards in the system, HP chipsets route those
ranges to one card or the other, not both.  So my guess is that X
is either trying to use the second card uninitialized, or it is
trying to emulate the option ROM on the second card, and the MMIO
or IO port accesses done by the option ROM code are being routed to
the primary card.

Bad things will happen in either case.

I have code for ia64 that makes this work, and it should be fairly
easy to port to parisc.  It works by reprogramming the chipset to
route the VGA MMIO and IO port resource to the appropriate card.
There are a few related X server changes, too.

This is a bit of a work-in-progress, but I'll attach the current
ia64 kernel patch so you can get an idea of what I'm doing.

Bjorn




[PATCH] ia64: support HP chipset VGA routing

Called via pci_mmap_legacy_mem() and pci_{read,write}_legacy_io().

I'm working on support for multiple VGA devices.  Sysfs-pci exports
access to the legacy I/O port and MMIO resources required.  And HP
chipsets have programmable routing for those resources (actually just
the VGA-specific 0xA0000-0xBFFFF MMIO and 0x3B0-0x3DF I/O port
ranges).

But since the chipset only routes to one VGA device at a time, we need
some arbitration to coordinate user accesses and the chipset routing.
The attached file is a start, but I'm a complete VM neophyte, so I'd
appreciate any guidance.

There are no struct pages for the VGA MMIO region, so I couldn't use a
nopage() vm_op directly.  I used populate() instead, which seems a bit
hacky.  It sounds like a nopfn() or similar is coming, and I might be
able to use that.

===== arch/ia64/hp/common/Makefile 1.8 vs edited =====
Index: work4/arch/ia64/hp/common/Makefile
===================================================================
--- work4.orig/arch/ia64/hp/common/Makefile	2005-10-17 15:45:16.000000000 -0600
+++ work4/arch/ia64/hp/common/Makefile	2005-10-17 16:04:38.000000000 -0600
@@ -1,10 +1,7 @@
-#
-# ia64/platform/hp/common/Makefile
-#
-# Copyright (C) 2002 Hewlett Packard
+# (c) Copyright 2002, 2005 Hewlett-Packard Development Company, L.P.
 # Copyright (C) Alex Williamson (alex_williamson@hp.com)
-#
+# 	Bjorn Helgaas <bjorn.helgaas@hp.com>
 
-obj-y := sba_iommu.o
+obj-y := cc.o sba.o lba.o sba_iommu.o vga.o
 obj-$(CONFIG_IA64_HP_ZX1_SWIOTLB) += hwsw_iommu.o
 obj-$(CONFIG_IA64_GENERIC) += hwsw_iommu.o
Index: work4/arch/ia64/hp/common/sba_iommu.c
===================================================================
--- work4.orig/arch/ia64/hp/common/sba_iommu.c	2005-10-17 15:45:16.000000000 -0600
+++ work4/arch/ia64/hp/common/sba_iommu.c	2005-10-17 16:04:38.000000000 -0600
@@ -44,6 +44,8 @@
 
 #include <asm/acpi-ext.h>
 
+#include "cec.h"
+
 #define PFX "IOC: "
 
 /*
@@ -164,8 +166,6 @@
 #define SX1000_IOC_ID	((PCI_DEVICE_ID_HP_SX1000_IOC << 16) | PCI_VENDOR_ID_HP)
 #define SX2000_IOC_ID	((PCI_DEVICE_ID_HP_SX2000_IOC << 16) | PCI_VENDOR_ID_HP)
 
-#define ZX1_IOC_OFFSET	0x1000	/* ACPI reports SBA, we want IOC */
-
 #define IOC_FUNC_ID	0x000
 #define IOC_FCLASS	0x008	/* function class, bist, header, rev... */
 #define IOC_IBASE	0x300	/* IO TLB */
@@ -1733,7 +1733,7 @@
 };
 
 static struct ioc * __init
-ioc_init(u64 hpa, void *handle)
+ioc_init(void *handle, u64 hpa, u64 length)
 {
 	struct ioc *ioc;
 	struct ioc_iommu *info;
@@ -1970,56 +1970,38 @@
 #define sba_map_ioc_to_node(ioc, handle)
 #endif
 
+int __init
+ioc_add(acpi_handle handle, u64 hpa, u64 length, unsigned int page_shift)
+{
+	struct ioc *ioc;
+
+	if (!iovp_shift)
+		iovp_shift = page_shift;
+
+	ioc = ioc_init(handle, hpa, length);
+	if (!ioc)
+		return -ENODEV;
+
+	sba_map_ioc_to_node(ioc, handle);
+	return 0;
+}
+
 static int __init
 acpi_sba_ioc_add(struct acpi_device *device)
 {
-	struct ioc *ioc;
 	acpi_status status;
 	u64 hpa, length;
-	struct acpi_buffer buffer;
-	struct acpi_device_info *dev_info;
 
 	status = hp_acpi_csr_space(device->handle, &hpa, &length);
 	if (ACPI_FAILURE(status))
-		return 1;
+		return -ENODEV;
 
-	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
-	status = acpi_get_object_info(device->handle, &buffer);
-	if (ACPI_FAILURE(status))
-		return 1;
-	dev_info = buffer.pointer;
-
-	/*
-	 * For HWP0001, only SBA appears in ACPI namespace.  It encloses the PCI
-	 * root bridges, and its CSR space includes the IOC function.
-	 */
-	if (strncmp("HWP0001", dev_info->hardware_id.value, 7) == 0) {
-		hpa += ZX1_IOC_OFFSET;
-		/* zx1 based systems default to kernel page size iommu pages */
-		if (!iovp_shift)
-			iovp_shift = min(PAGE_SHIFT, 16);
-	}
-	ACPI_MEM_FREE(dev_info);
-
-	/*
-	 * default anything not caught above or specified on cmdline to 4k
-	 * iommu page size
-	 */
-	if (!iovp_shift)
-		iovp_shift = 12;
-
-	ioc = ioc_init(hpa, device->handle);
-	if (!ioc)
-		return 1;
-
-	/* setup NUMA node association */
-	sba_map_ioc_to_node(ioc, device->handle);
-	return 0;
+	return ioc_add(device->handle, hpa, length, 12);
 }
 
 static struct acpi_driver acpi_sba_ioc_driver = {
 	.name		= "IOC IOMMU Driver",
-	.ids		= "HWP0001,HWP0004",
+	.ids		= "HWP0004",
 	.ops		= {
 		.add	= acpi_sba_ioc_add,
 	},
Index: work4/arch/ia64/hp/common/vga.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ work4/arch/ia64/hp/common/vga.c	2005-10-19 13:23:01.000000000 -0600
@@ -0,0 +1,354 @@
+/*
+ * VGA routing
+ *
+ * (c) Copyright 2005 Hewlett-Packard Development Company, L.P.
+ *	Bjorn Helgaas <bjorn.helgaas@hp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * Some chipsets, including HP zx1, zx2, sx1000, and sx2000, route
+ * legacy VGA (MMIO accesses to 0xA0000-0xBFFFF and I/O port accesses
+ * to 0x3B0-0x3DF and their 10-bit aliases) to a single PCI root
+ * bridge.  This routing is programmable, so we can support several
+ * VGA devices in the same system.
+ *
+ * These legacy resources are exposed to the user via read/write of
+ * "legacy_io" (for I/O ports) and mmap of "legacy_mem" (for MMIO)
+ * in the /sys directory corresponding to the PCI root bridge.
+ *
+ * But, of course, only one of the VGA devices is accessible at a time,
+ * so this file does the locking and VM chicanery to keep multiple
+ * users separated.
+ */
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/pci.h>
+#include <asm/tlbflush.h>
+#include "cec.h"
+
+
+#define VGA_MMIO_BASE		0xA0000UL
+#define VGA_MMIO_END		0xC0000UL
+#define VGA_IO_ALIAS_MASK	0x3FF
+#define VGA_IO_BASE		0x3B0
+#define VGA_IO_END		0x3E0
+
+/* FIXME can we avoid dynamic allocations by statically allocating
+ * a per-page struct here and using some rmap-style list to thread
+ * things together?
+ */
+struct vga_mapping {
+	struct list_head	list;
+	struct vm_area_struct	*vma;
+	struct pci_bus		*bus;
+};
+
+static DEFINE_SPINLOCK(vga_lock);
+static LIST_HEAD(vga_mappers);
+
+static struct pci_bus *vga_owner;
+
+static void
+change_vga_route(struct pci_bus *bus)
+{
+	struct hp_lba_data *lba = PCI_CONTROLLER(bus)->platform_data;
+
+	hp_lba_vga_enable(lba);
+	hp_sba_vga_enable(lba->sba, lba->rope);
+	hp_pin_vga_enable(lba->cell);
+
+	vga_owner = bus;
+}
+
+static pte_t *
+my_pte_alloc_map(struct mm_struct *mm, unsigned long address)
+{
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+
+	/* FIXME doesn't this leak on the failure paths? */
+
+	pgd = pgd_offset(mm, address);
+	if (!pgd)
+		return NULL;
+
+	pud = pud_alloc(mm, pgd, address);
+	if (!pud)
+		return NULL;
+
+	pmd = pmd_alloc(mm, pud, address);
+	if (!pmd)
+		return NULL;
+
+	return pte_alloc_map(mm, pmd, address);
+}
+
+static void
+pte_protect(struct vm_area_struct *vma, unsigned long addr,
+	unsigned long pgoff, pgprot_t prot)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	pte_t *pte, entry;
+
+	pte = my_pte_alloc_map(mm, addr);
+	if (!pte) {
+		printk("%s: no PTE!\n", __FUNCTION__);
+		BUG();	/* FIXME */
+		return;
+	}
+
+	entry = pfn_pte(pgoff, prot);
+	ptep_establish(vma, addr, pte, entry);
+	pte_unmap(pte);
+}
+
+static inline pte_t *
+va_to_pte(struct mm_struct *mm, unsigned long address)
+{
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+
+	/* FIXME copied from page_check_address */
+	pgd = pgd_offset(mm, address);
+	if (likely(pgd_present(*pgd))) {
+		pud = pud_offset(pgd, address);
+		if (likely(pud_present(*pud))) {
+			pmd = pmd_offset(pud, address);
+			if (likely(pmd_present(*pmd)))
+				return pte_offset_map(pmd, address);
+		}
+	}
+	return 0;
+}
+
+static void
+vga_invalidate(struct vga_mapping *mapping)
+{
+	struct vm_area_struct *vma = mapping->vma;
+	struct mm_struct *mm = vma->vm_mm;
+	unsigned long pages, pgoff, end, address;
+	pte_t *pte, entry;
+
+	pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+	pgoff = max(vma->vm_pgoff, VGA_MMIO_BASE >> PAGE_SHIFT);
+	end = min(vma->vm_pgoff + pages, VGA_MMIO_END >> PAGE_SHIFT);
+	address = vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
+
+	/*
+	 * We never *add* mappings to a non-current mm, merely
+	 * invalidate any that exist.  This avoids races with
+	 * exit_mmap().
+	 */
+	spin_lock(&mm->page_table_lock);
+	while (pgoff < end) {
+		pte = va_to_pte(mm, address);
+		if (pte) {
+			entry = pgoff_to_pte(pgoff);
+			ptep_establish(vma, address, pte, entry);
+			pte_unmap(pte);
+		}
+		address += PAGE_SIZE;
+		pgoff++;
+	}
+	spin_unlock(&mm->page_table_lock);
+}
+
+static void
+vga_map(struct vga_mapping *mapping, pgprot_t prot)
+{
+	struct vm_area_struct *vma = mapping->vma;
+	struct mm_struct *mm = vma->vm_mm;
+	unsigned long pages, pgoff, end, addr;
+
+	pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+	pgoff = max(vma->vm_pgoff, VGA_MMIO_BASE >> PAGE_SHIFT);
+	end = min(vma->vm_pgoff + pages, VGA_MMIO_END >> PAGE_SHIFT);
+	addr = vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
+
+	spin_lock(&mm->page_table_lock);
+	while (pgoff < end) {
+		pte_protect(vma, addr, pgoff, prot);
+		addr += PAGE_SIZE;
+		pgoff++;
+	}
+	spin_unlock(&mm->page_table_lock);
+}
+
+static void
+vga_open(struct vm_area_struct *vma)
+{
+	struct pci_bus *bus = vma->vm_private_data;
+	struct vga_mapping *mapping;
+
+	mapping = kzalloc(sizeof(*mapping), GFP_KERNEL);
+	if (!mapping) {
+		BUG();		/* FIXME */
+		return;
+	}
+
+	mapping->vma = vma;
+	mapping->bus = bus;
+
+	spin_lock(&vga_lock);
+	vga_invalidate(mapping);
+	list_add(&mapping->list, &vga_mappers);
+	spin_unlock(&vga_lock);
+}
+
+static void
+vga_close(struct vm_area_struct *vma)
+{
+	struct vga_mapping *mapper;
+
+	spin_lock(&vga_lock);
+	list_for_each_entry(mapper, &vga_mappers, list) {
+		if (mapper->vma == vma) {
+			list_del(&mapper->list);
+			break;
+		}
+	}
+	spin_unlock(&vga_lock);
+	kfree(mapper);
+}
+
+static struct vga_mapping *
+change_vga_owner(struct pci_bus *bus, struct vm_area_struct *vma)
+{
+	struct vga_mapping *mapper, *new_owner = NULL;
+
+	list_for_each_entry(mapper, &vga_mappers, list) {
+		vga_invalidate(mapper);
+		if (mapper->vma == vma)
+			new_owner = mapper;
+	}
+	change_vga_route(bus);
+
+	return new_owner;
+}
+
+static struct page *
+vga_nopage(struct vm_area_struct *vma, unsigned long address, int *type)
+{
+	return NOPAGE_SIGBUS;
+}
+
+static int
+vga_populate(struct vm_area_struct *vma, unsigned long address,
+	unsigned long len, pgprot_t prot, unsigned long pgoff, int nonblock)
+{
+	struct pci_bus *bus = vma->vm_private_data;
+	struct vga_mapping *mapping;
+
+	spin_lock(&vga_lock);
+	mapping = change_vga_owner(bus, vma);
+	vga_map(mapping, prot);
+	spin_unlock(&vga_lock);
+	return 0;
+}
+
+static struct vm_operations_struct vga_vm_ops = {
+	.open		= vga_open,
+	.close		= vga_close,
+	.nopage		= vga_nopage,
+	.populate	= vga_populate,
+};
+
+int
+hp_pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma)
+{
+	unsigned long size = vma->vm_end - vma->vm_start;
+
+	if ((vma->vm_pgoff << PAGE_SHIFT) + size > 1024*1024)
+		return -EINVAL;
+
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+	vma->vm_flags |= (VM_SHM | VM_RESERVED | VM_IO | VM_SHARED);
+	vma->vm_ops = &vga_vm_ops;
+	vma->vm_private_data = bus;
+
+	vga_open(vma);
+	return 0;
+}
+
+static inline int
+is_vga_port(u16 alias)
+{
+	u16 port = alias & VGA_IO_ALIAS_MASK;
+
+	if (port >= VGA_IO_BASE && port < VGA_IO_END)
+		return 1;
+	return 0;
+}
+
+int
+hp_pci_legacy_read(struct pci_bus *bus, u16 port, u32 *val, u8 size)
+{
+	int is_vga = is_vga_port(port);
+	int ret = size;
+
+	if (is_vga) {
+		spin_lock(&vga_lock);
+		if (vga_owner != bus)
+			change_vga_owner(bus, NULL);
+	}
+
+	switch (size) {
+	case 1:
+		*val = inb(port);
+		break;
+	case 2:
+		*val = inw(port);
+		break;
+	case 4:
+		*val = inl(port);
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	if (is_vga)
+		spin_unlock(&vga_lock);
+
+	return ret;
+}
+
+int
+hp_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size)
+{
+	int is_vga = is_vga_port(port);
+	int ret = size;
+
+	if (is_vga) {
+		spin_lock(&vga_lock);
+		if (vga_owner != bus)
+			change_vga_owner(bus, NULL);
+	}
+
+	switch (size) {
+	case 1:
+		outb(val, port);
+		break;
+	case 2:
+		outw(val, port);
+		break;
+	case 4:
+		outl(val, port);
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	if (is_vga)
+		spin_unlock(&vga_lock);
+
+	return ret;
+}
Index: work4/arch/ia64/hp/common/sba.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ work4/arch/ia64/hp/common/sba.c	2005-10-17 16:24:44.000000000 -0600
@@ -0,0 +1,312 @@
+/*
+ * HP System Bus Adapter (SBA) driver
+ *
+ * (c) Copyright 2005 Hewlett-Packard Development Company, L.P.
+ *	Bjorn Helgaas <bjorn.helgaas@hp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+#include <linux/acpi.h>
+#include <linux/pci.h>
+#include <asm/acpi-ext.h>
+#include <acpi/actypes.h>
+#include <acpi/acpi_drivers.h>
+#include "cec.h"
+
+
+#define HP_SBA_ZX_HID		"HWP0001"
+#define HP_SBA_SX_HID		"HWP0005"
+#define HP_SBA_DRIVER_NAME	"HP System Bus Adapter Driver"
+#define HP_SBA_DEVICE_NAME	"HP System Bus Adapter"
+
+#define ZX_IOC_OFFSET		0x1000	/* HWP0001 reports only SBA */
+#define ZX_IOC_FUNCTION_SIZE	0x1000
+
+#define SBA_ROPE_CONFIG_BASE	0x03a8
+#define SBA_ROPE_CONFIG_ENABLE	  0x0000000000000001UL
+#define SBA_VGA_ROUTE		0x03b0
+#define SBA_VGA_ROUTE_ENABLE	  0x8000000000000000UL
+#define SBA_VGA_ROUTE_MASK	  0x000000000000000fUL
+
+/* for sx1000 ps202 workaround only */
+#define SBA_DIR_BASE		0x0230
+#define SBA_DIR_BASE_ENABLE	  0x0000000000000001UL
+#define SBA_DIR_MASK		0x0238
+#define SBA_DIR_ROUTE		0x0240
+#define SBA_IOS_DIR_BASE	0x03c0
+#define SBA_IOS_DIR_BASE_ENABLE	  0x0000000000000001UL
+#define SBA_IOS_DIR_MASK	0x03c8
+#define SBA_IOS_DIR_ROUTE	0x03d0
+
+struct hp_sba_data {
+	struct hp_sba_data	*next;
+	acpi_handle		handle;
+	volatile void __iomem	*addr;
+	unsigned int		cell;
+	u64			rope_base;
+	char			name[32];
+};
+
+static struct hp_sba_data *sba_list;
+static struct hp_sba_data *vga_sba;
+static unsigned int vga_rope = -1;
+
+static void
+hp_sba_vga_disable(struct hp_sba_data *sba)
+{
+	u64 route;
+
+	if (ps202_workaround) {
+		writeq(0, sba->addr + SBA_DIR_BASE);
+		writeq(0, sba->addr + SBA_IOS_DIR_BASE);
+		readq(sba->addr + SBA_IOS_DIR_BASE);
+		return;
+	}
+
+	route = readq(sba->addr + SBA_VGA_ROUTE);
+	route &= ~SBA_VGA_ROUTE_ENABLE;
+	writeq(route, sba->addr + SBA_VGA_ROUTE);
+	readq(sba->addr + SBA_VGA_ROUTE);
+}
+
+void
+hp_sba_vga_enable(struct hp_sba_data *sba, unsigned int rope)
+{
+	u64 route;
+
+	if (sba == vga_sba && rope == vga_rope)
+		return;
+
+	if (sba != vga_sba)
+		hp_sba_vga_disable(vga_sba);
+
+	if (ps202_workaround) {
+		writeq(rope, sba->addr + SBA_DIR_ROUTE);
+		writeq(0xffffffffffffffffULL, sba->addr + SBA_DIR_MASK);
+		writeq(SBA_DIR_BASE_ENABLE, sba->addr + SBA_DIR_BASE);
+		readq(sba->addr + SBA_DIR_BASE);
+
+		writeq(rope, sba->addr + SBA_IOS_DIR_ROUTE);
+		writeq(0xfffffffffffff800ULL, sba->addr + SBA_IOS_DIR_MASK);
+		writeq(SBA_IOS_DIR_BASE_ENABLE, sba->addr + SBA_IOS_DIR_BASE);
+		readq(sba->addr + SBA_IOS_DIR_BASE);
+
+		vga_sba = sba;
+		vga_rope = rope;
+		return;
+	}
+
+	route = readq(sba->addr + SBA_VGA_ROUTE);
+	route &= ~SBA_VGA_ROUTE_MASK;
+	route |= (SBA_VGA_ROUTE_ENABLE | rope);
+	writeq(route, sba->addr + SBA_VGA_ROUTE);
+	readq(sba->addr + SBA_VGA_ROUTE);
+
+	vga_sba = sba;
+	vga_rope = rope;
+}
+
+struct hp_sba_data *
+hp_sba_find(acpi_handle handle)
+{
+	acpi_handle parent;
+	acpi_status status;
+	struct hp_sba_data *sba;
+
+	do {
+		for (sba = sba_list; sba; sba = sba->next) {
+			if (handle == sba->handle)
+				return sba;
+		}
+
+		status = acpi_get_parent(handle, &parent);
+		handle = parent;
+	} while (ACPI_SUCCESS(status));
+	return 0;
+}
+
+unsigned int
+hp_sba_cell(struct hp_sba_data *sba)
+{
+	return sba->cell;
+}
+
+unsigned int
+hp_sba_lba_to_rope(struct hp_sba_data *sba, u64 addr)
+{
+	return (addr - sba->rope_base) >> 13;
+}
+
+static int
+match_ids2(struct acpi_device_info *info, char *ids)
+{
+	struct acpi_compatible_id_list *cid_list = &info->compatibility_id;
+	int i;
+
+	if (strstr(ids, info->hardware_id.value))
+		return 0;
+
+	for (i = 0; i < cid_list->count; i++)
+		if (strstr(ids, cid_list->id[i].value))
+			return 0;
+
+	return -ENOENT;
+}
+
+static int
+acpi_handle_match_ids(acpi_handle handle, char *ids)
+{
+	acpi_status status;
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_LOCAL_BUFFER, NULL};
+	int match;
+
+	status = acpi_get_object_info(handle, &buffer);
+	if (ACPI_FAILURE(status))
+		return -ENOENT;
+
+	match = match_ids2(buffer.pointer, ids);
+	ACPI_MEM_FREE(buffer.pointer);
+	return match;
+}
+
+static acpi_status
+find_ancestor(acpi_handle handle, char *ids, acpi_handle *ancestor)
+{
+	acpi_status status;
+	acpi_handle parent;
+
+	do {
+		if (acpi_handle_match_ids(handle, ids)) {
+			*ancestor = handle;
+			return AE_OK;
+		}
+
+		status = acpi_get_parent(handle, &parent);
+		if (ACPI_FAILURE(status))
+			return AE_ERROR;
+
+		handle = parent;
+	} while (ACPI_SUCCESS(status));
+	return AE_ERROR;
+}
+
+static int __init
+get_cell(acpi_handle handle)
+{
+	acpi_status status;
+	acpi_handle cell_handle;
+	unsigned long cell;
+
+	status = find_ancestor(handle, "ACPI004,HWP0008", &cell_handle);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	/*
+	 * Spec allows integer or string, but SPPA Firmware EAS requires
+	 * the _UID for cells to be the Cell ID.
+	 */
+	status = acpi_evaluate_integer(cell_handle, METHOD_NAME__UID,
+		NULL, &cell);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	return cell;
+}
+
+static int __init
+acpi_generic_sba_add(struct acpi_device *device, u64 *sba_hpa)
+{
+	acpi_status status;
+	u64 hpa, length;
+	struct hp_sba_data *sba;
+	int cell;
+
+	status = hp_acpi_csr_space(device->handle, &hpa, &length);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	cell = get_cell(device->handle);
+	if (cell < 0)
+		return -ENODEV;
+
+	sba = kzalloc(sizeof(*sba), GFP_KERNEL);
+	if (!sba)
+		return -ENOMEM;
+
+	strcpy(acpi_device_name(device), HP_SBA_DEVICE_NAME);
+
+	sba->next = sba_list;
+	sba_list = sba;
+
+	sba->handle = device->handle;
+	sba->addr = ioremap(hpa, length);
+	sba->cell = cell;
+	sba->rope_base = readq(sba->addr + SBA_ROPE_CONFIG_BASE) &
+		~SBA_ROPE_CONFIG_ENABLE;
+
+	snprintf(sba->name, sizeof(sba->name), "%s [%s]",
+		acpi_device_name(device), acpi_device_bid(device));
+	request_mem_region(hpa, length, sba->name);
+
+	printk(KERN_INFO "%s at MMIO 0x%lx\n", sba->name, hpa);
+
+	if (sba_hpa)
+		*sba_hpa = hpa;
+
+	return 0;
+}
+
+static int __init
+acpi_zx_sba_add(struct acpi_device *device)
+{
+	int err;
+	u64 sba_hpa;
+
+	err = acpi_generic_sba_add(device, &sba_hpa);
+	if (err)
+		return err;
+
+	/*
+	 * HWP0001 SBA devices contain an IOC that is not reported
+	 * separately.
+	 */
+	ioc_add(device->handle, sba_hpa + ZX_IOC_OFFSET, ZX_IOC_FUNCTION_SIZE,
+		min(PAGE_SHIFT, 16));
+
+	return 0;
+}
+
+static int __init
+acpi_sx_sba_add(struct acpi_device *device)
+{
+	return acpi_generic_sba_add(device, NULL);
+}
+
+static struct acpi_driver acpi_zx_sba_driver = {
+	.name		= HP_SBA_DRIVER_NAME,
+	.ids		= HP_SBA_ZX_HID,
+	.ops		= {
+		.add	= acpi_zx_sba_add,
+	},
+};
+
+static struct acpi_driver acpi_sx_sba_driver = {
+	.name		= HP_SBA_DRIVER_NAME,
+	.ids		= HP_SBA_SX_HID,
+	.ops		= {
+		.add	= acpi_sx_sba_add,
+	},
+};
+
+static int __init
+sba_init(void)
+{
+	acpi_bus_register_driver(&acpi_zx_sba_driver);
+	acpi_bus_register_driver(&acpi_sx_sba_driver);
+	return 0;
+}
+subsys_initcall(sba_init);
Index: work4/arch/ia64/hp/common/lba.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ work4/arch/ia64/hp/common/lba.c	2005-10-17 16:20:26.000000000 -0600
@@ -0,0 +1,182 @@
+/*
+ * HP Local Bus Adapter (LBA) driver
+ *
+ * (c) Copyright 2005 Hewlett-Packard Development Company, L.P.
+ *	Bjorn Helgaas <bjorn.helgaas@hp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+#include <linux/acpi.h>
+#include <linux/pci.h>
+#include <asm/acpi-ext.h>
+#include <acpi/actypes.h>
+#include <acpi/acpi_drivers.h>
+#include "cec.h"
+
+
+#define LBA_CONTROL		0x0108
+#define LBA_CONTROL_FORWARD_VGA	  0x00000008
+#define LBA_CONTROL_HARD_FAIL	  0x00000040
+
+#define FAIL_MODE_ROPE_HARD_FAIL		0x01
+
+#define FAIL_MODE_PCI_HARD_FAIL			0x01
+#define FAIL_MODE_PCI_SMART_MODE		0x02
+#define FAIL_MODE_PCI_CONFIG_TARGET_ABORT	0x04
+#define FAIL_MODE_PCI_IO_MASTER_ABORT		0x08
+#define FAIL_MODE_PCI_IO_TARGET_ABORT		0x10
+
+#define VGA_ROPE_MODE		0
+#define VGA_PCI_MODE		(FAIL_MODE_PCI_IO_TARGET_ABORT | \
+				 FAIL_MODE_PCI_IO_MASTER_ABORT | \
+				 FAIL_MODE_PCI_CONFIG_TARGET_ABORT | \
+				 FAIL_MODE_PCI_SMART_MODE)
+
+static struct hp_lba_data *vga_lba;
+
+static void
+hp_lba_set_fail_mode(struct hp_lba_data *lba, u64 rope_mode, u64 pci_mode)
+{
+	acpi_status status;
+	struct acpi_object_list arg_list;
+	union acpi_object fail_mode[2];
+
+	arg_list.count = 2;
+	arg_list.pointer = fail_mode;
+	fail_mode[0].type = ACPI_TYPE_INTEGER;
+	fail_mode[0].integer.value = rope_mode;
+	fail_mode[1].type = ACPI_TYPE_INTEGER;
+	fail_mode[1].integer.value = pci_mode;
+
+	status = acpi_evaluate_object(lba->handle, "WRFM", &arg_list, NULL);
+	if (ACPI_FAILURE(status))
+		printk(KERN_ERR "Couldn't write LBA fail mode\n");
+}
+
+static void
+hp_lba_vga_disable(struct hp_lba_data *lba)
+{
+	u64 ctrl;
+
+	/*
+	 * Reading an LBA register forces in-flight accesses to complete
+	 * before we route VGA to somewhere else.
+	 */
+	ctrl = readq(lba->addr + LBA_CONTROL);
+	ctrl &= ~LBA_CONTROL_FORWARD_VGA;
+	writeq(ctrl, lba->addr + LBA_CONTROL);
+	readq(lba->addr + LBA_CONTROL);
+
+	/*
+	 * We can't restore the original fail mode, because X may still
+	 * be using the device.
+	 */
+}
+
+void
+hp_lba_vga_enable(struct hp_lba_data *lba)
+{
+	u64 ctrl;
+
+	if (lba == vga_lba)
+		return;
+
+	if (vga_lba)
+		hp_lba_vga_disable(vga_lba);
+
+	ctrl = readq(lba->addr + LBA_CONTROL);
+	ctrl |= LBA_CONTROL_FORWARD_VGA;
+	writeq(ctrl, lba->addr + LBA_CONTROL);
+	readq(lba->addr + LBA_CONTROL);
+
+	hp_lba_set_fail_mode(lba, VGA_ROPE_MODE, VGA_PCI_MODE);
+
+	vga_lba = lba;
+}
+
+static char lba_id_list[] = "HWP0002,HWP0003,HWP0007";
+
+static int
+hp_lba_add(acpi_handle handle)
+{
+	acpi_status status;
+	struct acpi_device *device;
+	u64 hpa, length;
+	struct acpi_pci_id id;
+	struct pci_bus *bus;
+	struct hp_sba_data *sba;
+	struct hp_lba_data *lba;
+
+	status = acpi_bus_get_device(handle, &device);
+	if (ACPI_FAILURE(status))
+		return -EINVAL;
+
+	/*
+	 * This is called for all PCI root bridges.  But we only care
+	 * about the ones that have configurable VGA routing, i.e.,
+	 * HWP000[237].
+	 */
+	if (acpi_match_ids(device, lba_id_list))
+		return -ENODEV;
+
+	status = hp_acpi_csr_space(handle, &hpa, &length);
+	if (ACPI_FAILURE(status))
+		return -EINVAL;
+
+	status = acpi_get_pci_id(handle, &id);
+	if (ACPI_FAILURE(status))
+		return -EINVAL;
+
+	bus = pci_find_bus(id.segment, id.bus);
+	if (!bus)
+		return -EINVAL;
+
+	sba = hp_sba_find(handle);
+	if (!sba)
+		return -EINVAL;
+
+	lba = kzalloc(sizeof(*lba), GFP_KERNEL);
+	if (!lba)
+		return -ENOMEM;
+
+	lba->handle = handle;
+	lba->addr = ioremap(hpa, length);
+	lba->sba = sba;
+	lba->cell = hp_sba_cell(sba);
+	lba->rope = hp_sba_lba_to_rope(sba, hpa);
+
+	PCI_CONTROLLER(bus)->platform_data = lba;
+
+	sprintf(lba->name, "HP Local Bus Adapter (PCI Bus %04x:%02x)",
+		id.segment, id.bus);
+	request_mem_region(hpa, length, lba->name);
+
+	printk(KERN_INFO "%s at MMIO 0x%lx\n", lba->name, hpa);
+	return 0;
+}
+
+static void
+hp_lba_remove(acpi_handle handle)
+{
+}
+
+static struct acpi_pci_driver hp_lba_driver = {
+	.add =		hp_lba_add,
+	.remove =	hp_lba_remove,
+};
+
+static int __init
+hp_lba_init(void)
+{
+	/*
+	 * The LBAs are claimed by the ACPI generic PCI root bridge
+	 * driver.  Register with it as a sub-driver.
+	 */
+	acpi_pci_register_driver(&hp_lba_driver);
+	return 0;
+}
+subsys_initcall(hp_lba_init);
Index: work4/arch/ia64/hp/common/cec.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ work4/arch/ia64/hp/common/cec.h	2005-10-17 16:26:50.000000000 -0600
@@ -0,0 +1,39 @@
+/*
+ * HP chipset support
+ *
+ * (c) Copyright 2005 Hewlett-Packard Development Company, L.P.
+ *	Bjorn Helgaas <bjorn.helgaas@hp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+#include <linux/acpi.h>
+#include <asm/acpi-ext.h>
+#include <acpi/actypes.h>
+#include <acpi/acpi_drivers.h>
+
+struct hp_lba_data {
+	acpi_handle		handle;
+	volatile void __iomem	*addr;
+	struct hp_sba_data	*sba;
+	unsigned int		cell;
+	unsigned int		rope;
+	char			name[40];
+};
+
+struct hp_sba_data;
+
+void hp_lba_vga_enable(struct hp_lba_data *lba);
+void hp_sba_vga_enable(struct hp_sba_data *sba, unsigned int rope);
+void hp_pin_vga_enable(unsigned int cell);
+
+struct hp_sba_data *hp_sba_find(acpi_handle handle);
+unsigned int hp_sba_cell(struct hp_sba_data *sba);
+unsigned int hp_sba_lba_to_rope(struct hp_sba_data *sba, u64 addr);
+
+extern int ps202_workaround;
+
+int ioc_add(acpi_handle handle, u64 hpa, u64 length, unsigned int page_shift);
Index: work4/arch/ia64/hp/common/cc.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ work4/arch/ia64/hp/common/cc.c	2005-10-17 16:26:06.000000000 -0600
@@ -0,0 +1,133 @@
+/*
+ * HP Cell Controller driver
+ *
+ * (c) Copyright 2005 Hewlett-Packard Development Company, L.P.
+ *	Bjorn Helgaas <bjorn.helgaas@hp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+#include <linux/acpi.h>
+#include <linux/pci.h>
+#include <asm/acpi-ext.h>
+#include <acpi/actypes.h>
+#include <acpi/acpi_drivers.h>
+#include "cec.h"
+
+
+#define HP_CC_HID		"HWP0006"
+#define HP_CC_DRIVER_NAME	"HP Cell Controller Driver"
+#define HP_CC_DEVICE_NAME	"HP Cell Controller"
+
+#define CC_FUNCTION_SIZE	0x1000
+#define CC_FUNCTION_PIN0	0x8000
+#define CC_FUNCTION_PIN1	0xb000
+
+#define PIN_FUNC_ID		0x0000
+#define PIN_FUNC_ID_SX1000	  0x1262103c
+#define PIN_VGA_ROUTE		0x01c0
+#define PIN_VGA_ROUTE_ENABLE	  0x8000000000000000UL
+#define PIN_VGA_ROUTE_MASK	  0x00000000000000ffUL
+#define PIN_CELL_ID		0x0f00
+#define PIN_CELL_ID_MASK	  0x000000000000000fUL
+
+int ps202_workaround;	/* ABE PS202: sx1000 VGA routing is broken */
+
+struct hp_pin_data {
+	struct hp_pin_data	*next;
+	volatile void __iomem	*addr;
+};
+
+static struct hp_pin_data *pin_list;
+static unsigned int vga_cell = -1;
+
+void
+hp_pin_vga_enable(unsigned int cell)
+{
+	struct hp_pin_data *pin;
+	u64 route;
+
+	if (cell == vga_cell)
+		return;
+
+	/* Point every PIN's VGA_ROUTE at CELL. */
+	for (pin = pin_list; pin; pin = pin->next) {
+		route = readq(pin->addr + PIN_VGA_ROUTE);
+		route &= ~(PIN_VGA_ROUTE_ENABLE | PIN_VGA_ROUTE_MASK);
+		route |= (PIN_VGA_ROUTE_ENABLE | (cell << 4));
+		writeq(route, pin->addr + PIN_VGA_ROUTE);
+		readq(pin->addr + PIN_VGA_ROUTE);
+	}
+	vga_cell = cell;
+}
+
+static int __init
+pin_add(u64 hpa, u64 length)
+{
+	struct hp_pin_data *pin;
+	u64 id;
+
+	pin = kzalloc(sizeof(*pin), GFP_KERNEL);
+	if (!pin)
+		return -ENOMEM;
+
+	pin->addr = ioremap(hpa, length);
+	pin->next = pin_list;
+	pin_list = pin;
+
+	id = readq(pin->addr + PIN_FUNC_ID);
+	if (id == PIN_FUNC_ID_SX1000)
+		ps202_workaround = 1;
+
+	return 0;
+}
+
+static int __init
+acpi_cc_add(struct acpi_device *device)
+{
+	acpi_status status;
+	u64 hpa, length;
+	unsigned int size;
+	char *name;
+
+	status = hp_acpi_csr_space(device->handle, &hpa, &length);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	strcpy(acpi_device_name(device), HP_CC_DEVICE_NAME);
+
+	size = strlen(acpi_device_name(device)) +
+		strlen(acpi_device_bid(device)) + 4;
+	name = kzalloc(size, GFP_KERNEL);
+	if (!name)
+		return -ENOMEM;
+
+	snprintf(name, size, "%s [%s]",
+		acpi_device_name(device), acpi_device_bid(device));
+	request_mem_region(hpa, length, name);
+
+	pin_add(hpa + CC_FUNCTION_PIN0, CC_FUNCTION_SIZE);
+	pin_add(hpa + CC_FUNCTION_PIN1, CC_FUNCTION_SIZE);
+
+	printk(KERN_INFO "%s at MMIO 0x%lx\n", name, hpa);
+	return 0;
+}
+
+static struct acpi_driver acpi_cc_driver = {
+	.name		= HP_CC_DRIVER_NAME,
+	.ids		= HP_CC_HID,
+	.ops		= {
+		.add	= acpi_cc_add,
+	},
+};
+
+static int __init
+cc_init(void)
+{
+	acpi_bus_register_driver(&acpi_cc_driver);
+	return 0;
+}
+subsys_initcall(cc_init);
Index: work4/include/asm-ia64/machvec_hpzx1.h
===================================================================
--- work4.orig/include/asm-ia64/machvec_hpzx1.h	2005-10-17 15:45:16.000000000 -0600
+++ work4/include/asm-ia64/machvec_hpzx1.h	2005-10-17 16:04:38.000000000 -0600
@@ -11,6 +11,9 @@
 extern ia64_mv_dma_unmap_sg		sba_unmap_sg;
 extern ia64_mv_dma_supported		sba_dma_supported;
 extern ia64_mv_dma_mapping_error	sba_dma_mapping_error;
+extern ia64_mv_pci_mmap_legacy_page_range_t	hp_pci_mmap_legacy_page_range;
+extern ia64_mv_pci_legacy_read_t	hp_pci_legacy_read;
+extern ia64_mv_pci_legacy_write_t	hp_pci_legacy_write;
 
 /*
  * This stuff has dual use!
@@ -34,5 +37,8 @@
 #define platform_dma_sync_sg_for_device		machvec_dma_sync_sg
 #define platform_dma_supported			sba_dma_supported
 #define platform_dma_mapping_error		sba_dma_mapping_error
+#define platform_pci_mmap_legacy_page_range	hp_pci_mmap_legacy_page_range
+#define platform_pci_legacy_read		hp_pci_legacy_read
+#define platform_pci_legacy_write		hp_pci_legacy_write
 
 #endif /* _ASM_IA64_MACHVEC_HPZX1_h */

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Subject: Re: [parisc-linux] FLT CBFB on B1000 when accessing second graphics
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On Wed, Nov 30, 2005 at 03:21:17PM +0100, Thomas Klinger wrote:
> Now, the setup and everything else went through smoothly, even the
> first setup of the X server using the original display card went
> pretty fine, but only with 8-bit colors. That's why we built in the
> Matrox card. It is recognized by the system and displayed using lspci.
>

> What comes now is that if we try to start the X server using the
> second card the system switches the card and immediatly fails with the
> error code FLT CBFB (shown in the front LCD display).
>

You need to post your Xorg.conf or whatever it's called nowadays.
 
> I posted the symptom to debian-hppa and was then forwared by Grant
> Grundler to this mailing list to post my concern.
> 
> The goal of the system is to boot the system with the original card
> (as is does already), but use the secondary card (Matrox in that case)
> as display for the desktop environment in 16-bit colors, at least.
>

This will probably work provided you use the matroxfb framebuffer, with
the "fbdev" driver of X. Anything else is almost guaranteed to fail with
an HPMC. Specifics are explained in the graphics FAQ.
 
> A Data I/O Fetch Timeout occured while CPU 0 was
> requesting information from a device with the address 0xfff9017ff1.
>

Somebody did something it shouldn't've.

Cheers,
	Kyle 
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On Wed, Nov 30, 2005 at 12:24:39PM -0700, Bjorn Helgaas wrote:
> I don't follow parisc development enough to know whether this
> scenario is supposed to work.  Based on what I do know about
> HP chipsets and the ia64 kernel, I expect this to fail for the
> following reason:
>
[Executive summary: No, using X to do any hardware programming is
 definitely going to fail spectacularly]

Iirc when I brought up doing this a few months ago, Grant mentioned
that this feature of the chipset (I don't recall whether it was
Astro or Elroy offhand) was broken/untested for the parisc based
revisions of the chip until some later version.
 
> When you have two video cards in the system, HP chipsets route those
> ranges to one card or the other, not both.  So my guess is that X
> is either trying to use the second card uninitialized, or it is
> trying to emulate the option ROM on the second card, and the MMIO
> or IO port accesses done by the option ROM code are being routed to
> the primary card.
>

At the moment, there's absolutely no support for legacy VGA
registers. Legacy IO port accesses will likely timeout doing an access
to the PCI bus behind rope0. Legacy VGA mmio will, uh, do something
funny.

Firmware probably (I say probably instead of 'definitely' because I'm
in no position to know for certain) doesn't do anything at all with a
VGA card, as none of the supported graphics cards do legacy VGA.

The best thing to do is to not use an X driver, and hope the framebuffer
driver can initialize the card without legacy VGA accesses. Browsing
random popular PC graphics cards framebuffer drivers, I would speculate
that an nVidia PCI card would work, as they appear to do all programming
via proper mmio. Whether the nvidiafb driver supports a card that has
not been initialized by firmware is anyone's guess, I don't have one
to test with. (And I'm more interested in making the Visualize FX series
work).

> Bad things will happen in either case.
> 

> I have code for ia64 that makes this work, and it should be fairly
> easy to port to parisc.  It works by reprogramming the chipset to
> route the VGA MMIO and IO port resource to the appropriate card.
> There are a few related X server changes, too.
> 
> This is a bit of a work-in-progress, but I'll attach the current
> ia64 kernel patch so you can get an idea of what I'm doing.
> 

Thanks! If I can scrounge some time over holidays I'll investigate
if there's a possibility of this working on parisc.

> Bjorn
>

Cheers,
	Kyle
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On Wednesday 30 November 2005 10:06 pm, Kyle McMartin wrote:
> At the moment, there's absolutely no support for legacy VGA
> registers. Legacy IO port accesses will likely timeout doing an access
> to the PCI bus behind rope0. Legacy VGA mmio will, uh, do something
> funny.

Oh, yes, I vaguely remember that :-)

IIRC, there was a back-door approach that Grant thought might work.
My patch provides the hooks you'd need for that.  Instead of
reprogramming the chipset VGA routing and doing inb/outb, you'd
just do the LBA magic for I/O port accesses.

I don't know how MMIO would be handled (or even what chipset is
in the box in question).  But my guess is that it's similar to
how the current chipsets work.
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Subject: [parisc-linux] [PATCH] PCMCIA: Disable probing on parisc
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PCMCIA port and memory probing is broken on parisc, disabling both
allows the PCMCIA subsystem to work on parisc systems.

Signed-off-by: James Bottomley <jejb@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

--- a/drivers/pcmcia/Kconfig	2005-11-29 10:53:24.000000000 -0700
+++ b/drivers/pcmcia/Kconfig	2005-11-11 21:08:04.000000000 -0700
@@ -200,7 +200,11 @@
 
 config PCMCIA_PROBE
 	bool
-	default y if ISA && !ARCH_SA1100 && !ARCH_CLPS711X
+	default y if ISA && !ARCH_SA1100 && !ARCH_CLPS711X && !PARISC
+
+config PCMCIA_PROBE_MEM
+	bool
+	default y if !PARISC
 
 config M32R_PCC
 	bool "M32R PCMCIA I/F"
--- a/drivers/pcmcia/rsrc_nonstatic.c	2005-11-29 10:53:24.000000000 -0700
+++ b/drivers/pcmcia/rsrc_nonstatic.c	2005-11-11 21:08:04.000000000 -0700
@@ -43,7 +43,11 @@
 
 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0444)
 
+#ifdef CONFIG_PCMCIA_PROBE_MEM
 INT_MODULE_PARM(probe_mem,	1);		/* memory probe? */
+#else
+INT_MODULE_PARM(probe_mem,	0);		/* memory probe? */
+#endif
 #ifdef CONFIG_PCMCIA_PROBE
 INT_MODULE_PARM(probe_io,	1);		/* IO port probe? */
 INT_MODULE_PARM(mem_limit,	0x10000);
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Subject: [parisc-linux] Re: [PATCH] PCMCIA: Disable probing on parisc
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On Sun, Dec 04, 2005 at 01:04:23AM -0500, Kyle McMartin wrote:
> PCMCIA port and memory probing is broken on parisc, disabling both
> allows the PCMCIA subsystem to work on parisc systems.

Do you know why it's broken?

The memory probing works by mapping the CIS into memory and then trying
to read it.  If you're saying it's broken, that implies that we can't
read the CIS, and therefore we can't use the addresses being probed.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 Serial core
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On Sun, Dec 04, 2005 at 10:33:38AM +0000, Russell King wrote:
> Do you know why it's broken?
>

I'll have to defer to James Bottomley. He was the one who committed
the fixes (I believe he's using pcmcia on a parisc machine for wireless)
originally, I'm just passing along the patches.
 
Cheers,
	Kyle

> The memory probing works by mapping the CIS into memory and then trying
> to read it.  If you're saying it's broken, that implies that we can't
> read the CIS, and therefore we can't use the addresses being probed.
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Subject: [parisc-linux] 2.6.15-rc5-pa2: "BUG: soft lockup detected on CPU#0!"
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Hello,

2.6.15-rc5-pa2 boots on all my machines (715/64, B160L, C3000) with the 32bit kernel, but on the B160L I see the 
BUG: soft lockup detected on CPU#0!
message below.
Any ideas ?

PS: The message seems to be more informational, since the kernel still boots up fine.

Helge
------------------
Linux version 2.6.15-rc5-pa2 (root@p100) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #220 Mon Dec 5 17:39:15 CET 2
005
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005020 00000481 00000000 02020202 7794d7fe 100000f0 00000004 000000ba 000000ba
vers  00000008
CPUID vers 15 rev 8 (0x000001e8)
capabilities 0x2
model 9000/778/B160L
Total Memory: 512 MB
On node 0 totalpages: 131072
  DMA zone: 131072 pages, LIFO batch:31
  DMA32 zone: 0 pages, LIFO batch:0
  Normal zone: 0 pages, LIFO batch:0
  HighMem zone: 0 pages, LIFO batch:0
LED display at f0190001 registered
Built 1 zonelists
Kernel command line: HOME=/ root=/dev/sda3 ip=bootp console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 4096 (order: 12, 65536 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 524288k available
Calibrating delay loop... 106.49 BogoMIPS (lpj=532480)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Phantom PseudoBC GSC+ Port at 0xffc00000 [8] { 7, 0x0, 0x504, 0x00000 }
2. Dino PCI Bridge at 0xfff80000 [8/0] { 13, 0x3, 0x680, 0x0000a }
3. Merlin+ 132 Dino RS-232 at 0xfff83000 [8/0/63] { 10, 0x0, 0x022, 0x0008c }
4. Merlin 160 Core FW-SCSI at 0xfff8c000 [8/12] { 4, 0x0, 0x03d, 0x00089 }
5. Merlin 160 Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x03d, 0x00081 },  additional addresses: 0xffd0c000 0xff
c00000
6. Merlin 160 Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x03d, 0x0008c }
7. Merlin 160 Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x03d, 0x00082 }
8. Merlin 160 Core LAN (802.3) at 0xffd07000 [8/16/6] { 10, 0x0, 0x03d, 0x0008a }
9. Merlin 160 Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x03d, 0x00074 },  additional addresses: 0xffd
01000 0xffd03000
10. Merlin 160 Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x03d, 0x0007b }
11. Merlin 160 Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x03d, 0x00084 }
12. Merlin 160 Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x03d, 0x00084 }
13. Coral SGC Graphics at 0xfa000000 [8/4] { 10, 0x0, 0x004, 0x00077 }
14. Coral SGC Graphics at 0xf4000000 [8/8] { 10, 0x0, 0x004, 0x00077 }
15. Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 0x00085 },  additional addresses: 0xf001100
0
16. Merlin L2 160 (9000/778/B160L) at 0xfffbe000 [62] { 0, 0x0, 0x502, 0x00004 }
17. Memory at 0xfffbf000 [63] { 1, 0x0, 0x067, 0x00009 }
18. Merlin+ 132 Dino PS/2 Port at 0xfff81000 [1] { 10, 0x0, 0x022, 0x00096 }
CPU(s): 1 x PA7300LC (PCX-L2) at 160.000000 MHz
BUG: soft lockup detected on CPU#0!

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111 Not tainted
r00-03  00000000 10423810 10127878 0000000f
r04-07  104e5810 fffff4b2 104e5810 104e5810
r08-11  10423810 0000000f 0000003c 10423f3c
r12-15  10423810 104e4810 10425010 f0100000
r16-19  f0000c70 f0000194 1fffffe0 104230b4
r20-23  ffd05800 ffd05800 ffd05800 00000060
r24-27  ffffffff 00000b4e 00000b4e 10413010
r28-31  00000000 00000000 10a242c0 00000000
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000011110000100000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  10a21a1810423894 10423a081017efec 49c5f780104e48c8 10a21a1810423894
fr08-11  fffffff410a09000 0000000000000000 000000001039ec1c 103a771000000001
fr12-15  0000000100000000 104dd0101016a184 10a21a1810a186e0 0000004d00030000
fr16-19  00000000104e5663 104e501000000000 10423b38104e48c8 0000004d49c5f780
fr20-23  104e48c800000002 10a090001016a2a4 00000fd8000007ec 000017c40000000a
fr24-27  00000000104e48c8 0000000210a09000 000000022fd11780 104e48c8104e5658
fr28-31  104e501000000400 10a2409c1017c774 10a2420a00000000 0000004d49c5f780

IASQ: 00000000 00000000 IAOQ: 1012787c 10127880
 IIR: e81f1f97    ISR: 1016a184  IOR: 10a21a18
 CPU:        0   CR30: 10a24000 CR31: 1047c000
 ORIG_R28: 0000004d
 IAOQ[0]: release_console_sem+0x64/0x114
 IAOQ[1]: release_console_sem+0x68/0x114
 RP(r2): release_console_sem+0x60/0x114
Whole cache flush 22670 cycles, flushing 4294896 bytes 606813 cycles
Setting cache flush threshold to 12a0 (1 CPUs online)
Lasi version 0 at 0xffd00000 found.
Dino version 3.1 found at 0xfff80000
Dino: No PCI devices enabled.
SCSI subsystem initialized
....and it continues....
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From: James Bottomley <James.Bottomley@SteelEye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: [PATCH] PCMCIA: Disable probing on parisc
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Cc: linux-pcmcia@lists.infradead.org,
 parisc-linux@lists.parisc-linux.org,
 Kyle McMartin <kyle@parisc-linux.org>
To: Russell King <rmk+pcmcia@arm.linux.org.uk>
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On Sun, 2005-12-04 at 10:33 +0000, Russell King wrote:
> On Sun, Dec 04, 2005 at 01:04:23AM -0500, Kyle McMartin wrote:
> > PCMCIA port and memory probing is broken on parisc, disabling both
> > allows the PCMCIA subsystem to work on parisc systems.
> 
> Do you know why it's broken?
> 
> The memory probing works by mapping the CIS into memory and then trying
> to read it.  If you're saying it's broken, that implies that we can't
> read the CIS, and therefore we can't use the addresses being probed.

On parisc, any read to a region that doesn't respond HPMCs (crashes) the
box.  PA also has separated I/O space, so most random I/O reads are of
non-responding regions.

My solution was simply to force the pcmcia subsystem not to probe and
instead believe the map we passed in from the pcmcia daemon.

James


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Subject: Re: [parisc-linux] Re: [PATCH] PCMCIA: Disable probing on parisc
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On Mon, Dec 05, 2005 at 04:32:19PM -0500, James Bottomley wrote:
> On Sun, 2005-12-04 at 10:33 +0000, Russell King wrote:
> > On Sun, Dec 04, 2005 at 01:04:23AM -0500, Kyle McMartin wrote:
> > > PCMCIA port and memory probing is broken on parisc, disabling both
> > > allows the PCMCIA subsystem to work on parisc systems.
> > 
> > Do you know why it's broken?
> > 
> > The memory probing works by mapping the CIS into memory and then trying
> > to read it.  If you're saying it's broken, that implies that we can't
> > read the CIS, and therefore we can't use the addresses being probed.
> 
> On parisc, any read to a region that doesn't respond HPMCs (crashes) the
> box.  PA also has separated I/O space, so most random I/O reads are of
> non-responding regions.

I don't have issue with the I/O side.  It's the memory side I'm
wondering about.

The probing code sets up a mapping to place the CIS at one of the
regions, and then tries to validate/read the CIS.  It then unmaps
it and maps it into the next place and repeats.  Hence, we're
reading data from the PCMCIA card after setting up various valid
mappings.

These mappings are not much different from the mappings which are
used to interpret the CIS data from the card after the memory
probing has completed.

Hence, if the memory probing is causing you issues, I'd be concerned
about the reliability of reading the CIS data from the card under
the non-probing scenarios.

Alternatively, maybe you've found a real bug somewhere in PCMCIA
which needs fixing...

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 Serial core
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On Mon, 2005-12-05 at 22:03 +0000, Russell King wrote:
> I don't have issue with the I/O side.  It's the memory side I'm
> wondering about.

I'm sorry, by I/O reads I mean memory.  PA doesn't have any I/O port
cycles (except those which are generated in the busses via mmio
read/write sequences).

> The probing code sets up a mapping to place the CIS at one of the
> regions, and then tries to validate/read the CIS.  It then unmaps
> it and maps it into the next place and repeats.  Hence, we're
> reading data from the PCMCIA card after setting up various valid
> mappings.

Yes, that's what crashes.  Any memory probe to a non-responding address
on PA causes a high priority machine check.  This is what trips us up.
We have to explicitly list the responding regions in the config file.

James


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Subject: Re: [parisc-linux] Re: [PATCH] PCMCIA: Disable probing on parisc
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On Mon, Dec 05, 2005 at 10:03:44PM +0000, Russell King wrote:
..
> I don't have issue with the I/O side.  It's the memory side I'm
> wondering about.
> 
> The probing code sets up a mapping to place the CIS at one of the
> regions,

How is the region selected? (ie please point me at the right code)

Is there some obvious document that explains my basic questions?
I'm happy to read to learn a bit more.  My ob600ct is still
here waiting for me to fix PCMCIA on it...*sigh*


If using IO port space, parisc can be very flexible as each PCI bus
essentially has it's own IO port space range.

But with MMIO space, routing is typically setup by firmware.
Each PCI bus controller will get one(*) region of MMIO space
routed to it by the chipset. Children of that PCI bus must use
MMIO addresses allocated from that region.

(*) I'm simplifying a bit here. The full explanation is more complex.
   But treating it like one region is sufficient in practice
   and for the purpose of this discussion.

>  and then tries to validate/read the CIS.  It then unmaps
> it and maps it into the next place and repeats.  Hence, we're
> reading data from the PCMCIA card after setting up various valid
> mappings.

Ok. More basic questions:
Why are we doing this? Is this a form of bus walk?

> These mappings are not much different from the mappings which are
> used to interpret the CIS data from the card after the memory
> probing has completed.

I'm not familiar with how CIS data is read from a PCMCIA device.
Normal PCI uses "Config Space". Is PCMCIA using MMIO space
for both CIS/device discovery and assigning MMIO space to
PCMCIA device registers?

> Hence, if the memory probing is causing you issues, I'd be concerned
> about the reliability of reading the CIS data from the card under
> the non-probing scenarios.

If PCMCIA is susceptible to write posting issues, then a
PCI-PCMCIA bridge on PARISC is likely to expose those issues.
ie timing of register writes are likely different.


> Alternatively, maybe you've found a real bug somewhere in PCMCIA
> which needs fixing...

That's possible. If PCMCIA is assigning MMIO addresses outside the
range routed down the PCI bus, the box will HPMC. The "PIM dump"
(CPU state when it HPMC'd) can tell which address the CPU failed
to access. So we should be able to determine if this is the case
or not pretty easily.

I don't have any PCI-PCMCIA adapters...so may have to wait until
james is home again and has an hour to poke at this again.

hth,
grant
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To: Russell King <rmk+pcmcia@arm.linux.org.uk>
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On Tue, 2005-12-06 at 09:36 +0000, Russell King wrote:
> I don't think you've fully understood what I've been saying.
> When we try to do memory probing, we setup a mapping in the same
> way that we setup a mapping to read the CIS from the card.

Yes, I do.  On PARISC, memory I/O ranges are directed.  If you program
the CIS to respond outside the directed range of its parent, the I/O
transaction will never get through because the direction is done by the
parent bus (which you aren't programming).  This then causes a HPMC
because no entity on the runway bus responds to the memory read.

James


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On Tue, Dec 06, 2005 at 09:49:08AM +0000, Russell King wrote:
> > How is the region selected? (ie please point me at the right code)
> 
> By the addresses passed in as available resources, or the parent bridge
> resources if the cardbus bridge is attached to a P2P bridge.
> 
> We start at the start of each resource and interate over it with a step
> size of 16k to 8MB depending on the size of the resource.  We ioremap
> the physical address, and then ask the PCMCIA controller to forward
> accesses targetted at the physical address to the PCMCIA card.
> 
> We then access the physical address to check whether it looks like the
> cards CIS data, and then we destroy the mapping and iounmap.  Repeat
> for each step until we reach the end of the resource.

Ok. As long as the MMIO bus addresses used fall within the
range being forwarded down the PCI bus, this should work fine.

> If that fails, we perform the same thing (mapping the CIS data) but
> we use a checksum method on the mapped card data instead.
> 
> > Is there some obvious document that explains my basic questions?
> 
> Unfortunately the only thing which exists is the code, sorry.

I'll try to summarize this thread later this week and mail you a new file
for Documentation/pcmcia/.

> I hope you are aware that PCMCIA bridges use memory and IO outside
> their own BARs when setting up mappings for legacy PCMCIA cards?

I'm not. But that's perfectly ok as long as PCMCIA code only deals
with the MMIO resources associated with that parent PCI bus.

> Hence, the parent bridge needs to forward _more_ IO and memory than
> the bus would appear to require.

We typically assign 8MB-256MB of MMIO space per PCI bus depending
on IO configuration and platforms/chipset. I expect that's more
than what the PCMCIA bridge would request for itself.

> > Ok. More basic questions:
> > Why are we doing this? Is this a form of bus walk?
> 
> We are doing this to ensure that the memory really is available - on
> PCs it may clash with weirdo ACPI/SMM/BIOS crap which we don't know
> about.  On non-PCs it should be completely harmless.  If it isn't,
> that indicates that we found another hardware problem which precludes
> us from using the addresses we're attempting to use.

Ok - that makes sense. I agree it should be harmless.
Sounds like there is a real problem here with how MMIO resources
are being assigned or used.

> So the memory probe itself is not the problem, but it found something
> we weren't expecting which will cause a problem later.

*nod*

> > If PCMCIA is susceptible to write posting issues, then a
> > PCI-PCMCIA bridge on PARISC is likely to expose those issues.
> > ie timing of register writes are likely different.
> 
> It could be - the control registers are MMIO, and we would be reading
> a different MMIO address.  However, since both of those are on the same
> bus (even to the same device) shouldn't the writes complete before the
> reads?

I'm certain PCI ordering rules are enforced. With "write posting" I
was referring to my favorite problem that I talked about here:
	http://iou.parisc-linux.org/ols_2002/4_3MMIO_is_harder.html

Ie any dependency on udelay() after an MMIO write is problematic.

> > That's possible. If PCMCIA is assigning MMIO addresses outside the
> > range routed down the PCI bus, the box will HPMC. The "PIM dump"
> > (CPU state when it HPMC'd) can tell which address the CPU failed
> > to access. So we should be able to determine if this is the case
> > or not pretty easily.
> > 
> > I don't have any PCI-PCMCIA adapters...so may have to wait until
> > james is home again and has an hour to poke at this again.
> 
> Hope the above points folk in the right direction. 8)

Yes - it does. thanks!

grant

> 
> -- 
> Russell King
>  Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
>  maintainer of:  2.6 Serial core
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On Mon, Dec 05, 2005 at 07:45:23PM -0500, James Bottomley wrote:
> On Mon, 2005-12-05 at 22:03 +0000, Russell King wrote:
> > The probing code sets up a mapping to place the CIS at one of the
> > regions, and then tries to validate/read the CIS.  It then unmaps
> > it and maps it into the next place and repeats.  Hence, we're
> > reading data from the PCMCIA card after setting up various valid
> > mappings.
> 
> Yes, that's what crashes.  Any memory probe to a non-responding address
> on PA causes a high priority machine check.  This is what trips us up.
> We have to explicitly list the responding regions in the config file.

I don't think you've fully understood what I've been saying.
When we try to do memory probing, we setup a mapping in the same
way that we setup a mapping to read the CIS from the card.

Therefore, when we read from the regions we're probing, we should
see valid CIS data.  Therefore, we are _not_ accessing an address
which doesn't respond, but we're accessing an address which we've
asked the PCMCIA bridge to map the card memory to.

If the hardware decides that, despite us setting up such a mapping,
the address we're accessing is not valid, then rather than disabling
the probing we should not ask PCMCIA to use it because the address
range is not available.

In either case, if the memory probe fails in some way, the solution
is not to disable it because then you're just papering over whatever
real problem exists.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 Serial core
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On Tue, Dec 06, 2005 at 01:14:58AM -0700, Grant Grundler wrote:
> On Mon, Dec 05, 2005 at 10:03:44PM +0000, Russell King wrote:
> ..
> > I don't have issue with the I/O side.  It's the memory side I'm
> > wondering about.
> > 
> > The probing code sets up a mapping to place the CIS at one of the
> > regions,
> 
> How is the region selected? (ie please point me at the right code)

By the addresses passed in as available resources, or the parent bridge
resources if the cardbus bridge is attached to a P2P bridge.

We start at the start of each resource and interate over it with a step
size of 16k to 8MB depending on the size of the resource.  We ioremap
the physical address, and then ask the PCMCIA controller to forward
accesses targetted at the physical address to the PCMCIA card.

We then access the physical address to check whether it looks like the
cards CIS data, and then we destroy the mapping and iounmap.  Repeat
for each step until we reach the end of the resource.

If that fails, we perform the same thing (mapping the CIS data) but
we use a checksum method on the mapped card data instead.

> Is there some obvious document that explains my basic questions?

Unfortunately the only thing which exists is the code, sorry.

> If using IO port space, parisc can be very flexible as each PCI bus
> essentially has it's own IO port space range.
> 
> But with MMIO space, routing is typically setup by firmware.
> Each PCI bus controller will get one(*) region of MMIO space
> routed to it by the chipset. Children of that PCI bus must use
> MMIO addresses allocated from that region.
> 
> (*) I'm simplifying a bit here. The full explanation is more complex.
>    But treating it like one region is sufficient in practice
>    and for the purpose of this discussion.

I hope you are aware that PCMCIA bridges use memory and IO outside
their own BARs when setting up mappings for legacy PCMCIA cards?
Hence, the parent bridge needs to forward _more_ IO and memory than
the bus would appear to require.

> >  and then tries to validate/read the CIS.  It then unmaps
> > it and maps it into the next place and repeats.  Hence, we're
> > reading data from the PCMCIA card after setting up various valid
> > mappings.
> 
> Ok. More basic questions:
> Why are we doing this? Is this a form of bus walk?

We are doing this to ensure that the memory really is available - on
PCs it may clash with weirdo ACPI/SMM/BIOS crap which we don't know
about.  On non-PCs it should be completely harmless.  If it isn't,
that indicates that we found another hardware problem which precludes
us from using the addresses we're attempting to use.

So the memory probe itself is not the problem, but it found something
we weren't expecting which will cause a problem later.

> > These mappings are not much different from the mappings which are
> > used to interpret the CIS data from the card after the memory
> > probing has completed.
> 
> I'm not familiar with how CIS data is read from a PCMCIA device.
> Normal PCI uses "Config Space". Is PCMCIA using MMIO space
> for both CIS/device discovery and assigning MMIO space to
> PCMCIA device registers?

CIS data describes the PCMCIA card - how much IO and memory space it
needs, the supply voltages, access timings, device IDs and so forth.
It is only accessed once a card has been inserted, and we have asked
the PCMCIA controller to map the CIS memory from the card into the
hosts memory space - which must be available.

> > Hence, if the memory probing is causing you issues, I'd be concerned
> > about the reliability of reading the CIS data from the card under
> > the non-probing scenarios.
> 
> If PCMCIA is susceptible to write posting issues, then a
> PCI-PCMCIA bridge on PARISC is likely to expose those issues.
> ie timing of register writes are likely different.

It could be - the control registers are MMIO, and we would be reading
a different MMIO address.  However, since both of those are on the same
bus (even to the same device) shouldn't the writes complete before the
reads?

> > Alternatively, maybe you've found a real bug somewhere in PCMCIA
> > which needs fixing...
> 
> That's possible. If PCMCIA is assigning MMIO addresses outside the
> range routed down the PCI bus, the box will HPMC. The "PIM dump"
> (CPU state when it HPMC'd) can tell which address the CPU failed
> to access. So we should be able to determine if this is the case
> or not pretty easily.
> 
> I don't have any PCI-PCMCIA adapters...so may have to wait until
> james is home again and has an hour to poke at this again.

Hope the above points folk in the right direction. 8)

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 Serial core
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Subject: Re: [parisc-linux] Re: [PATCH] PCMCIA: Disable probing on parisc
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Hi,

On Tue, Dec 06, 2005 at 08:36:48AM -0500, James Bottomley wrote:
> On Tue, 2005-12-06 at 09:36 +0000, Russell King wrote:
> > I don't think you've fully understood what I've been saying.
> > When we try to do memory probing, we setup a mapping in the same
> > way that we setup a mapping to read the CIS from the card.
> 
> Yes, I do.  On PARISC, memory I/O ranges are directed.  If you program
> the CIS to respond outside the directed range of its parent,

Which we do not -- at least what I can see from the code.
drivers/pcmcia/rsrc_nonstatic.c:
	-> pcmcia_nonstatic_validate_mem()
	-> validate_mem()
	-> do_mem_probe()
	-> cis_readable()
	-> claim_region()
		if (s && s->cb_dev)
			parent = pci_find_parent_resource(s->cb_dev, res);
		if (!parent || request_resource(parent, res))
			=> break out
As we should.

And only if it succeeds, we read (or write) to such addresses. At least in
theory. There seems to be a bug -- either in the PARISC setup, or in the
PCMCIA code -- which triggers this HMAC. Let's find it, as _not_ doing these
checks seems to be the wrong thing to do. James, could you find out what
call exactly does this HMAC? Which kernel are you referring to? Also, maybe
a pcibios_resource_to_bus or pcibios_bus_to_resource translation is missing
somewhere?

Thanks,
	Dominik
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On Wed, 2005-12-07 at 13:21 +0100, Dominik Brodowski wrote:
> And only if it succeeds, we read (or write) to such addresses. At least in
> theory. There seems to be a bug -- either in the PARISC setup, or in the
> PCMCIA code -- which triggers this HMAC. Let's find it, as _not_ doing these
> checks seems to be the wrong thing to do. James, could you find out what
> call exactly does this HMAC? Which kernel are you referring to? Also, maybe
> a pcibios_resource_to_bus or pcibios_bus_to_resource translation is missing
> somewhere?

Ah, well, this code has been in parisc for ages ... since I started
using my PA box as a wireless router about two years ago.  My
recollection is that it claimed to probe something in low memory as its
first printout.  Let me reverse the patch and see what happens now (I
assume the code has been updated a bit since we first had to do this).
It will take a while; I have to bring down my home network to do it and
I won't be back home until Friday.

James


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On Tuesday 06 December 2005 20:59, Guy Martin wrote:
> Since 2.6.12, the parport_gsc driver is not useable due to some changes in the parport driver.
> A 'select PARPORT_NOT_PC' line in the Kconfig was added to every non-pc driver but the gsc one.
> Patching the kernel with the attached fix makes the parport driver working again.

Thanks !
Applied to 2.6.15-rc5-pa3.

Helge
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Subject: [parisc-linux] Is this patch enough to fix: tk8.4 +glibc 2.3.5 buid
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Hello Carlos,

> with my atempt to merge glibc-2.3.6 with debian stuff I reach to get ri=
d of
> those "warning: inlining failed" thanks to compile option "-fno-unit-at=
-a-time
> " (as discused a year ago) and the following patch:
> --- sysdeps/hppa/Makefile.Orig  2005-12-06 19:01:00.000000000 +0100
> +++ sysdeps/hppa/Makefile       2005-12-06 19:01:57.000000000 +0100
> @@ -24,6 +24,7 @@
> 
>  ifeq ($(subdir),elf)
>  CFLAGS-rtld.c +=3D -mdisable-fpregs
> +CFLAGS-dl-reloc.c +=3D -fno-unit-at-a-time
>  sysdep-dl-routines +=3D dl-symaddr dl-fptr
>  sysdep_routines +=3D $(sysdep-dl-routines)
>  sysdep-rtld-routines +=3D $(sysdep-dl-routines)
> 
> (unfortunately it seems to fail with 2.3.5 (debian dpkg src, when rebui=
ld with
> gcc-4.0, i.e the same compiler as for 2.3.6), need to check more ...)
> 
> And fwiw it didn't help (wish8.4 still segv ;-( )
> 
> Now compare glibc 2.3.5 + gcc-3.3 with glibc 2.3.6 + gcc-4.0 here are t=
he
> regression test:
>  2.3.6 + gcc-4.0
> make[2]: ***
>
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/=
tst-regex.out]
> Error 143
> make[2]: ***
>
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/=
tst-regex2.out]
> Error 1
> 
> make[2]: ***
>
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/linuxt=
hreads/tst-cancel4.out]
> Error 1
> make[2]: ***
>
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/linuxt=
hreads/tst-cancel5.out]
> Error 1
> make[2]: ***
>
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/linuxt=
hreads/tst-cancel-static.out]
> Error 1
> make[1]: *** [linuxthreads/tests] Error 2
> make[2]: ***
>
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/elf/ts=
t-pie1.out]
> Error 127
> 
> (I was oblige to kill tst-regex because of an endless nanosleep loop ;-=
( ).
> 
> But I had to get rid of some following debian patch because failing to =
apply:
> #cvs-localedata                # j: upstream now
> #glibc235-gcc4-cvs             # j: in upstream now
> #glibc235-gcc4-elf             # j: ?
> #glibc235-gcc4-jis0208         # j: ?
> #glibc235-binutils216-ia64
> #glibc235-gcc4-ia64-profile
> #glibc235-gcc4-ppc-procfs
> #glibc235-gcc4-arm-inline
> #glibc235-gcc4-sparc-inline
> #hurd-libpthread-indirect-loading
> #glibc235-gcc4-s390-inline
> #glibc235-execvp-fix
> #glibc235-dl-execstack
> #glibc235-localedata-sr_CS
> #glibc235-gcc4-hurd
> #glibc235-alpha-divqu
> #mips-bits-syscall
> 

mmm, I apply this patch (from cvs.p-l.org glibc) against my own acking
glibc-2.3.6 as well as dpkg libc6 2.3.5-8.1:
--- linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h   2005-11-1=
5
11:02:31.000000000 +0100
+++ linuxthreads.new/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h      
2005-06-26 15:48:38.000000000 +0200
@@ -110,14 +111,14 @@
        ldw -24(%sp), %r26                              ASM_LINE_SEP    \=

        CDISABLE                                        ASM_LINE_SEP    \=

        stw %ret0, -24(%sp) /* delay */                 ASM_LINE_SEP    \=

-       /* Restore syscall return (use arg regs) */     ASM_LINE_SEP    \=

-       ldw -24(%sp), %r26                              ASM_LINE_SEP    \=

+       /* Restore syscall return */                    ASM_LINE_SEP    \=

+       ldw -24(%sp), %ret0                             ASM_LINE_SEP    \=

        /* compare error */                             ASM_LINE_SEP    \=

        ldi NO_ERROR,%r1                                ASM_LINE_SEP    \=

        /* branch if no error */                        ASM_LINE_SEP    \=

-       cmpb,>>=3D,n %r1,%r26,L(pre_end)                  ASM_LINE_SEP   =
 \
+       cmpb,>>=3D,n %r1,%ret0,L(pre_end)                 ASM_LINE_SEP   =
 \
        LOAD_PIC(TREG)  /* cond. nullify */             ASM_LINE_SEP    \=

-       copy %r26, TREG /* save syscall return */       ASM_LINE_SEP    \=

+       copy %ret0, TREG /* save syscall return */      ASM_LINE_SEP    \=

        SYSCALL_ERROR_HANDLER                           ASM_LINE_SEP    \=

        /* make syscall res value positive */           ASM_LINE_SEP    \=

        sub %r0, TREG, TREG     /* delay */             ASM_LINE_SEP    \=

=3D=3D=3D=3D<>=3D=3D=3D=3D

and all recompile with debian stock gcc-4.0 and it seems to fix this pb o=
f
tkinfo ;-)

Is it enough?

Thanks,
    Joel

PS: with 2.3.6 I didn't reach to get read of sched_yield() pb with tst-re=
gex
but for sure not with your cvs src. I compare the dump of the 2 libpthrea=
d and
are nearly the same now. Any other idea? (librt?)=0A=0A------------------=
---------------------------------------------=0AA free anti-spam and anti=
-virus filter on all Scarlet mailboxes=0AMore info on http://www.scarlet.=
be/

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Greetings to all!

This may be a awkward question to be asking over here, but this is  
really the only community of HPPA users that I've seen on the net so  
far.

I've got a K570 in my basement here that I need to change the Model  
String stuck up in Stable Storage (presumably on some magical NVRam  
or EEPROM chipset) somehow. The machine right now has been retarded  
by HP and thinks it is a "K370", despite having the Mainboard and all  
the hardware parts of a K570.

Therefore, PDC ever-so-helpfully warns me that my second Memory  
Carrier (which it finds, tests, and reports all RAM correctly on) is  
exceeding a K370's hardware specification, and that I have to remove  
it. It refuses to boot with the second card, despite the second card  
and all associated RAM working perfectly (Guess this is the "HP Way"  
of crippling your hardware marketing).

I'd like to know- how can I update the Model String? I know its  
possible via way of SS_Config, but thats another magical HP utility  
that only CE's apparently have, and HP told me they won't give it to  
a hobbyist with a K570 living in his basement :(. Can Linux do this,  
and if so, how would I go about updating the Model String?

I don't need to change anything else. I'd just like to be able to use  
the hardware that the machine physically supports, without PDC  
getting all freaked out about hardware specs and such.

Cheers!

Keven Tipping



--Apple-Mail-1--869907180
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<HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; ">Greetings to all!<DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>This may be a awkward =
question to be asking over here, but this is really the only community =
of HPPA users that I've seen on the net so far.</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>I've got a K570 in my =
basement here that I need to change the Model String stuck up in Stable =
Storage (presumably on some magical NVRam or EEPROM chipset) somehow. =
The machine right now has been retarded by HP and thinks it is a "K370", =
despite having the Mainboard and all the hardware parts of a =
K570.</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>Therefore, PDC =
ever-so-helpfully warns me that my second Memory Carrier (which it =
finds, tests, and reports all RAM correctly on) is exceeding a K370's =
hardware specification, and that I have to remove it. It refuses to boot =
with the second card, despite the second card and all associated RAM =
working perfectly (Guess this is the "HP Way" of crippling your hardware =
marketing).</DIV><DIV><BR class=3D"khtml-block-placeholder"></DIV><DIV>I'd=
 like to know- how can I update the Model String? I know its possible =
via way of SS_Config, but thats another magical HP utility that only =
CE's apparently have, and HP told me they won't give it to a hobbyist =
with a K570 living in his basement :(. Can Linux do this, and if so, how =
would I go about updating the Model String?</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>I don't need to change =
anything else. I'd just like to be able to use the hardware that the =
machine physically supports, without PDC getting all freaked out about =
hardware specs and such.</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>Cheers!</DIV><DIV><BR><DIV> =
<SPAN class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><SPAN =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><SPAN =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><P style=3D"margin: =
0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Helvetica" size=3D"3" =
style=3D"font: 12.0px Helvetica">Keven Tipping</FONT></P><BR =
class=3D"Apple-interchange-newline"></SPAN></SPAN></SPAN> =
</DIV><BR></DIV></BODY></HTML>=

--Apple-Mail-1--869907180--

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On Wed, Dec 07, 2005 at 01:21:29PM +0100, Dominik Brodowski wrote:
> Which we do not -- at least what I can see from the code.
> drivers/pcmcia/rsrc_nonstatic.c:
...
> 	-> claim_region()
> 		if (s && s->cb_dev)
> 			parent = pci_find_parent_resource(s->cb_dev, res);
> 		if (!parent || request_resource(parent, res))
> 			=> break out
> As we should.

James,
Could post the /proc/iomem output?

It just occurred to me that you shouldn't need to bring down the network.
We can verify if an IO range resource didn't get parented correctly or
otherwise failed to get registered.

thanks,
grant
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On Tue, Dec 06, 2005 at 09:49:08AM +0000, Russell King wrote:
> > Is there some obvious document that explains my basic questions?
> 
> Unfortunately the only thing which exists is the code, sorry.

Russell,
As promised, here's a first cut on something to add to
Documentation/pcmcia/memory_probe. This is in the hope of
being helpful to others porting PCMCIA to their platform.

There is a "FIXME" bit that you'll need to rephrase or perhaps delete.
I'm not clear if you generalized when mentioning P2P bridges as
the parent of the resources.

I also think the distinction between, CIS memory and PCMCIA
card MMIO ranges isn't as sharp as it could be. The last bit
at the bottom hints at it but doesn't say anything about
why the additional MMIO address space is needed.

I also assumed "CIS data" is the content in "CIS memmory".


/dream on
And someday it might be interesting to use the PCI error recovery
code in PCMCIA memory probing to recovery from failures on PPC and
ia64 platforms. It might be possible on some PARISC chipsets as well
but no one is working on PCI error recovery for any PARISC chipset AFAIK.
/dream off

thanks,
grant



PCMCIA Memory Probing
---------------------

Summarized from parisc-linux mailing thread by Grant Grundler:
http://lists.parisc-linux.org/pipermail/parisc-linux/2005-December/027743.html


Abstract
--------
The memory probing code sets up a mapping to place the CIS in one of
the available regions, and then tries to validate/read the CIS.
The probe code then unmaps the CIS data, maps it into the next place,
and repeats.  We're reading data from the PCMCIA card after setting
up various valid mappings.



> Why are we doing this? Is this a form of bus walk?

We are ensuring the MMIO resource really is available. On PCs this
resource may clash with weirdo ACPI/SMM/BIOS crap which we don't know
about.  On non-PCs probing should be completely harmless.  If it isn't,
we found another hardware problem which precludes use of the offending
address range. So the memory probe itself is not the problem, but it may
find something we weren't expecting which will cause a problem later.


[ unfortunately, it's not always harmless on PA-RISC and some
IA64 platforms. These platforms will HPMC (or MCA respectively) if a
CPU times out on an MMIO read. Error recovery on ia64 could eventually
deal sanely with this. -ggg ]


CIS data describes how much IO and memory space PCMCIA card needs,
the supply voltages, access timings, device IDs and so forth.
It is only accessed once a card has been inserted, and we have asked
the PCMCIA controller to map the CIS memory from the card into the
hosts memory space - which must be available.

CIS data is memory mapped the same way the memory probing is done.
Hence, if the memory probing causes issues, reading CIS data from the
card under the non-probing scenarios is not realiable either.



> How is the region selected? (ie please point me at the right code)

By the addresses passed in as available resources, or the parent bridge
resources if the cardbus bridge is attached to a P2P bridge.

# FIXME - what if the PCMCIA controller is connected to a Host PCI
# Bus controller?
# Maybe I'm being a bit anal in the intrepretation here because
# Host PCI bus controllers *act* like PCI-PCI Bridges from
# a PCI Point of view. But the number and type of resources
# available from a Host PCI bus controller is NOT architected
# as is the case for a PCI-PCI Bridge. 

PCMCIA Probe interates over the entire MMIO resource with a step size
of 16k to 8MB depending on the size of the resource.  We ioremap
the physical address, and then ask the PCMCIA controller to forward
accesses targetted at the physical address to the PCMCIA card.
We then access the physical address, verify the card's CIS data matches
previously read data, and then we destroy the mapping and iounmap.
Repeat for each step until we reach the end of the MMIO resource.

If that fails, we perform the same thing (mapping the CIS data) but
we use a checksum method on the mapped card data instead.


PCMCIA bridges use memory and IO outside their own BARs when setting
up mappings for legacy PCMCIA cards.  Hence, the parent bridge needs
to forward _more_ IO and memory than the bus would appear to require.
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On Sat, 2005-12-10 at 23:50 -0700, Grant Grundler wrote:
> Could post the /proc/iomem output?

Sure, it's below

> It just occurred to me that you shouldn't need to bring down the network.
> We can verify if an IO range resource didn't get parented correctly or
> otherwise failed to get registered.

Well, yes I do.  I still need to verify that the kernel works without
the probe prevention hack.  The problem years ago wasn't the parenting,
it was PCMCIA looking for things like ISA memory regions.  I know the
card currently gets the correct parenting and regions (because it
works).  The question is would it without the pcmcia hack?

James

00000000-1fffffff : System RAM
  00000000-000009ff : PDC data (Page Zero)
  00100000-002b8fff : Kernel code
  002b9000-003efe0b : Kernel data
f0190001-f0190001 : led_data
f0800000-f0ffffff : Dino LMMIO 0
  f0800000-f0800fff : 0000:00:02.0
    f0800000-f0800fff : yenta_socket
  f0801000-f0801fff : 0000:00:13.0
    f0801000-f0801fff : sym53c8xx
  f0802000-f08020ff : 0000:00:13.0
    f0802000-f08020ff : sym53c8xx
  f0803000-f080307f : 0000:00:01.0
  f0804000-f080407f : 0000:00:14.0
    f0804000-f080407f : tulip
  f0805000-f0805fff : pcmcia_socket0
  f0900000-f09fffff : PCI CardBus #01
  f0a00000-f0afffff : PCI CardBus #01
f8000000-f8000fff : sti
f8100000-f84fffff : stifb mmio
f9000000-f917ffff : stifb fb
ffd00000-ffdfffff : Lasi
  ffd00000-ffd00fff : Lasi
  ffd05800-ffd05807 : serial
  ffd08000-ffd08fff : GSC PS2
fff80000-fffaffff : Central Bus
  fff80000-fff80fff : Dino
  fff83800-fff83807 : serial
fffb0000-fffdffff : Local Broadcast
  fffbe000-fffbefff : CPU
fffe0000-ffffffff : Global Broadcast


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On Sun, Dec 11, 2005 at 09:14:33AM -0600, James Bottomley wrote:
> On Sat, 2005-12-10 at 23:50 -0700, Grant Grundler wrote:
> > Could post the /proc/iomem output?
> 
> Sure, it's below

thanks

> > It just occurred to me that you shouldn't need to bring down the network.
> > We can verify if an IO range resource didn't get parented correctly or
> > otherwise failed to get registered.
> 
> Well, yes I do.  I still need to verify that the kernel works without
> the probe prevention hack.

Sorry, I wasn't clear - just referring to grabbing the /proc/iomem output.

>   The problem years ago wasn't the parenting,
> it was PCMCIA looking for things like ISA memory regions.  I know the
> card currently gets the correct parenting and regions (because it
> works).

I agree - the output for "Dino LMMIO 0" is correct.

>  The question is would it without the pcmcia hack?

*nod*.  If PCMCIA code is accessing IO Port space looking for legacy
ISA devices, then a parisc box will definitely HPMC.

Most of the parisc PCI bus controllers can only "hard fail" on a
PCI Master Abort for both IO Port and MMIO space accesses. I know
this isn't expected behavior for IO port space but HPUX didn't need
to handle this more gracefully.

I've learned that "ISA Memory regions" are 20 bits for 8-bit ISA or
24-bits for 16-bit ISA. In both cases, I would expect Host RAM to
respond instead of any IO device.  E.g. VGA memory at 0xa0000-0xb0000
would get garbage instead of an HPMC.

thanks,
grant
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On Sun, 2005-12-11 at 10:50 -0700, Grant Grundler wrote:
> On Sun, Dec 11, 2005 at 09:14:33AM -0600, James Bottomley wrote:
> >  The question is would it without the pcmcia hack?
> 
> *nod*.  If PCMCIA code is accessing IO Port space looking for legacy
> ISA devices, then a parisc box will definitely HPMC.

Well, I pulled out the mem probe and left in the PCMCIA_PROBE config
setting based on !PARISC.

Everything seems to work.  Here's the relevant dmesg output 

Yenta: CardBus bridge found at 0000:00:02.0 [0000:0000]
PCI: Bus 1, cardbus bridge: 0000:00:02.0
  IO window: 00000400-000005ff
  IO window: 00000800-000009ff
  PREFETCH window: f0c00000-f0ffffff
  MEM window: f0900000-f09fffff
Yenta: Enabling burst memory read transactions
Yenta: Using CSCINT to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:00:02.0, mfunc 0x00000000, devctl 0x66
Yenta TI: socket 0000:00:02.0 probing PCI interrupt failed, trying to
fix
Yenta TI: socket 0000:00:02.0 falling back to parallel PCI interrupts
Yenta TI: socket 0000:00:02.0 parallel PCI interrupts ok
Yenta: ISA IRQ mask 0x0000, PCI irq 23
Socket status: 30000010
pcmcia: parent PCI bridge I/O window: 0x0 - 0xffff
pcmcia: parent PCI bridge Memory window: 0xf0800000 - 0xf0ffffff
pccard: PCMCIA card inserted into slot 0
[...]
cs: memory probe 0xf0800000-0xf0ffffff: excluding 0xf0800000-0xf087ffff
0xf0900000-0xf09fffff 0xf0c00000-0xf0ffffff
pcmcia: registering new device pcmcia0.0
pcmcia: Detected deprecated PCMCIA ioctl usage.
pcmcia: This interface will soon be removed from the kernel; please
expect breakage unless you upgrade to new tools.
pcmcia: see
http://www.kernel.org/pub/linux/utils/kernel/pcmcia/pcmcia.html for
details.
orinoco 0.15rc3 (David Gibson <hermes@gibson.dropbear.id.au>, Pavel
Roskin <proski@gnu.org>, et al)

As you can see, we do get the cis memory probe occuring within the
correct boundaries now.

Helge, I think the next test is over to you, could you see how CVS tree
head fares on your tadpole?

Thanks,

James




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On Sunday 11 December 2005 19:01, James Bottomley wrote:
> Well, I pulled out the mem probe and left in the PCMCIA_PROBE config
> setting based on !PARISC.
> 
> Everything seems to work.  Here's the relevant dmesg output 
> Yenta: CardBus bridge found at 0000:00:02.0 [0000:0000]
> PCI: Bus 1, cardbus bridge: 0000:00:02.0
>   IO window: 00000400-000005ff
>   IO window: 00000800-000009ff
>   PREFETCH window: f0c00000-f0ffffff
>   MEM window: f0900000-f09fffff
> Yenta: Enabling burst memory read transactions
> Yenta: Using CSCINT to route CSC interrupts to PCI
> Yenta: Routing CardBus interrupts to PCI
> Yenta TI: socket 0000:00:02.0, mfunc 0x00000000, devctl 0x66
> Yenta TI: socket 0000:00:02.0 probing PCI interrupt failed, trying to
> fix
> Yenta TI: socket 0000:00:02.0 falling back to parallel PCI interrupts
> Yenta TI: socket 0000:00:02.0 parallel PCI interrupts ok
> Yenta: ISA IRQ mask 0x0000, PCI irq 23
> Socket status: 30000010
> pcmcia: parent PCI bridge I/O window: 0x0 - 0xffff
> pcmcia: parent PCI bridge Memory window: 0xf0800000 - 0xf0ffffff
> pccard: PCMCIA card inserted into slot 0
> [...]
> cs: memory probe 0xf0800000-0xf0ffffff: excluding 0xf0800000-0xf087ffff
> 0xf0900000-0xf09fffff 0xf0c00000-0xf0ffffff
> pcmcia: registering new device pcmcia0.0
>
> As you can see, we do get the cis memory probe occuring within the
> correct boundaries now.
> 
> Helge, I think the next test is over to you, could you see how CVS tree
> head fares on your tadpole?

Hi James,

Seems ok, but I still have the "stuck IRQ" problem:

Dec 11 19:46:11 rdi kernel: Yenta: CardBus bridge found at 0000:00:02.0 [0000:0000]
Dec 11 19:46:11 rdi kernel: PCI: Bus 1, cardbus bridge: 0000:00:02.0
Dec 11 19:46:11 rdi kernel:   IO window: 00000400-000005ff
Dec 11 19:46:11 rdi kernel:   IO window: 00000800-000009ff
Dec 11 19:46:11 rdi kernel:   PREFETCH window: f0c00000-f0ffffff
Dec 11 19:46:11 rdi kernel:   MEM window: f0900000-f09fffff
Dec 11 19:46:12 rdi kernel: Dino 0xfff80000: stuck interrupt 2
Dec 11 19:46:12 rdi last message repeated 7 times
Dec 11 19:46:12 rdi kernel: Yenta: ISA IRQ mask 0x0000, PCI irq 25
Dec 11 19:46:12 rdi kernel: Socket status: 30000007
Dec 11 19:46:12 rdi kernel: pcmcia: parent PCI bridge I/O window: 0x0 - 0xffff
Dec 11 19:46:12 rdi kernel: pcmcia: parent PCI bridge Memory window: 0xf0800000 - 0xf0ffffff
Dec 11 19:46:12 rdi kernel: Yenta: CardBus bridge found at 0000:00:02.1 [0000:0000]
Dec 11 19:46:12 rdi kernel: PCI: Bus 5, cardbus bridge: 0000:00:02.1
Dec 11 19:46:12 rdi kernel:   IO window: 00000c00-00000dff
Dec 11 19:46:12 rdi kernel:   IO window: 00001000-000011ff
Dec 11 19:46:12 rdi kernel:   PREFETCH window: f0a00000-f0afffff
Dec 11 19:46:12 rdi kernel:   MEM window: f0b00000-f0bfffff
Dec 11 19:46:12 rdi kernel: Dino 0xfff80000: stuck interrupt 4
Dec 11 19:46:12 rdi last message repeated 7 times
Dec 11 19:46:12 rdi kernel: Yenta: ISA IRQ mask 0x0000, PCI irq 26
Dec 11 19:46:12 rdi kernel: Socket status: 30000811
Dec 11 19:46:12 rdi kernel: pcmcia: parent PCI bridge I/O window: 0x0 - 0xffff
Dec 11 19:46:12 rdi kernel: pcmcia: parent PCI bridge Memory window: 0xf0800000 - 0xf0ffffff
Dec 11 19:46:13 rdi kernel: pccard: PCMCIA card inserted into slot 1

Helge
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Subject: Re: [parisc-linux] Re: [PATCH] PCMCIA: Disable probing on parisc
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On Sun, Dec 11, 2005 at 07:55:09PM +0100, Helge Deller wrote:
> Seems ok, but I still have the "stuck IRQ" problem:

We have that problem with cardmode dino too ... may or may not be the
same root cause.



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From: Dominik Brodowski <linux@dominikbrodowski.net>
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Subject: Re: [parisc-linux] Re: [PATCH] PCMCIA: Disable probing on parisc
Date: Sun, 11 Dec 2005 20:49:47 +0100
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Hi,

On Sun, Dec 11, 2005 at 07:55:09PM +0100, Helge Deller wrote:
> Hi James,
> 
> Seems ok, but I still have the "stuck IRQ" problem:
> 
> Dec 11 19:46:11 rdi kernel: Yenta: CardBus bridge found at 0000:00:02.0 [0000:0000]
> Dec 11 19:46:11 rdi kernel: PCI: Bus 1, cardbus bridge: 0000:00:02.0
> Dec 11 19:46:11 rdi kernel:   IO window: 00000400-000005ff
> Dec 11 19:46:11 rdi kernel:   IO window: 00000800-000009ff
> Dec 11 19:46:11 rdi kernel:   PREFETCH window: f0c00000-f0ffffff
> Dec 11 19:46:11 rdi kernel:   MEM window: f0900000-f09fffff
> Dec 11 19:46:12 rdi kernel: Dino 0xfff80000: stuck interrupt 2
> Dec 11 19:46:12 rdi last message repeated 7 times

On Sun, Dec 11, 2005 at 12:09:04PM -0700, Matthew Wilcox wrote:
> On Sun, Dec 11, 2005 at 07:55:09PM +0100, Helge Deller wrote:
> > Seems ok, but I still have the "stuck IRQ" problem:
> 
> We have that problem with cardmode dino too ... may or may not be the
> same root cause.

Does PCMCIA still work? Does it go away with the no-mem-probing hack? I
don't think so. Probably PARISC doesn't like us trying out the ISA interrupt
routing in yenta-socket?

Thanks,
	Dominik



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From: Dominik Brodowski <linux@dominikbrodowski.net>
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Hi,

On Sun, Dec 11, 2005 at 12:01:02PM -0600, James Bottomley wrote:
> On Sun, 2005-12-11 at 10:50 -0700, Grant Grundler wrote:
> > On Sun, Dec 11, 2005 at 09:14:33AM -0600, James Bottomley wrote:
> > >  The question is would it without the pcmcia hack?
> > 
> > *nod*.  If PCMCIA code is accessing IO Port space looking for legacy
> > ISA devices, then a parisc box will definitely HPMC.
> 
> Well, I pulled out the mem probe and left in the PCMCIA_PROBE config
> setting based on !PARISC.
> 
> Everything seems to work.  Here's the relevant dmesg output 
> 
> Yenta: CardBus bridge found at 0000:00:02.0 [0000:0000]
> PCI: Bus 1, cardbus bridge: 0000:00:02.0
>   IO window: 00000400-000005ff
>   IO window: 00000800-000009ff
>   PREFETCH window: f0c00000-f0ffffff
>   MEM window: f0900000-f09fffff
> Yenta: Enabling burst memory read transactions
> Yenta: Using CSCINT to route CSC interrupts to PCI
> Yenta: Routing CardBus interrupts to PCI
> Yenta TI: socket 0000:00:02.0, mfunc 0x00000000, devctl 0x66
> Yenta TI: socket 0000:00:02.0 probing PCI interrupt failed, trying to
> fix
> Yenta TI: socket 0000:00:02.0 falling back to parallel PCI interrupts
> Yenta TI: socket 0000:00:02.0 parallel PCI interrupts ok
> Yenta: ISA IRQ mask 0x0000, PCI irq 23
> Socket status: 30000010
> pcmcia: parent PCI bridge I/O window: 0x0 - 0xffff
> pcmcia: parent PCI bridge Memory window: 0xf0800000 - 0xf0ffffff
> pccard: PCMCIA card inserted into slot 0
> [...]
> cs: memory probe 0xf0800000-0xf0ffffff: excluding 0xf0800000-0xf087ffff
> 0xf0900000-0xf09fffff 0xf0c00000-0xf0ffffff

> As you can see, we do get the cis memory probe occuring within the
> correct boundaries now.

Excellent. So is this patch OK? If yes, I'll try to get it into 2.6.16-rc1.

Thanks,
	Dominik


diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index 309eb55..d07b01f 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -200,7 +200,7 @@ config PCMCIA_PXA2XX
 
 config PCMCIA_PROBE
 	bool
-	default y if ISA && !ARCH_SA1100 && !ARCH_CLPS711X
+	default y if ISA && !ARCH_SA1100 && !ARCH_CLPS711X && !PARISC
 
 config M32R_PCC
 	bool "M32R PCMCIA I/F"



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On Sun, 2005-12-11 at 20:48 +0100, Dominik Brodowski wrote:
> diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
> index 309eb55..d07b01f 100644
> --- a/drivers/pcmcia/Kconfig
> +++ b/drivers/pcmcia/Kconfig
> @@ -200,7 +200,7 @@ config PCMCIA_PXA2XX
>  
>  config PCMCIA_PROBE
>  	bool
> -	default y if ISA && !ARCH_SA1100 && !ARCH_CLPS711X
> +	default y if ISA && !ARCH_SA1100 && !ARCH_CLPS711X && !PARISC

Yes, that's what we have left in the parisc tree.

James




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From: James Bottomley <James.Bottomley@SteelEye.com>
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On Sun, 2005-12-11 at 19:55 +0100, Helge Deller wrote:
> Seems ok, but I still have the "stuck IRQ" problem:

Hmm, perhaps the place to start for this is the firmware information:
In my system, the firmware actually disables the PCMCIA bridge (I assume
because it doesn't understand it).  That's why I added all the code to
dino to redo the entire PCI resource tree, so that it automatically
brings up the PCMCIA bridge.  However, your firmware should understand
the PCMCIA bridge, but it might have some other way of routing the IRQ.

James




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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Re: [PATCH] PCMCIA: Disable probing on parisc
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On Sunday 11 December 2005 21:37, James Bottomley wrote:
> On Sun, 2005-12-11 at 19:55 +0100, Helge Deller wrote:
> > Seems ok, but I still have the "stuck IRQ" problem:
> 
> Hmm, perhaps the place to start for this is the firmware information:
> In my system, the firmware actually disables the PCMCIA bridge (I assume
> because it doesn't understand it).  That's why I added all the code to
> dino to redo the entire PCI resource tree, so that it automatically
> brings up the PCMCIA bridge.  However, your firmware should understand
> the PCMCIA bridge, but it might have some other way of routing the IRQ.

Grant helped me to analyze this problem.
The pcmcia irq line seems to be allways off-by-one, e.g. PCI irq 25 got local irq 2 on dino which was wrong and should have become "1".
Grants comment on this was: "Sounds like we need a quirk in drivers/pci/quirks.c to deal with this."
 "or our algorithm for routing IRQ_PIN to INTERRUPT_LINE routing is broken."

Based on that I just created the attached patch. With it pcmcia now works for me.
Maybe you have an idea if something in dino is wrong ?

Helge

dmesg:
PCI: Cirrus Cardbus IRQ fixup for 0000:00:02.0, from 25 to 24 (old native irq=2)
Yenta: CardBus bridge found at 0000:00:02.0 [0000:0000]
PCI: Bus 1, cardbus bridge: 0000:00:02.0
  IO window: 00000400-000005ff
  IO window: 00000800-000009ff
  PREFETCH window: f0c00000-f0ffffff
  MEM window: f0900000-f09fffff
Yenta: ISA IRQ mask 0x0000, PCI irq 24
Socket status: 30000007
pcmcia: parent PCI bridge I/O window: 0x0 - 0xffff
pcmcia: parent PCI bridge Memory window: 0xf0800000 - 0xf0ffffff
PCI: Cirrus Cardbus IRQ fixup for 0000:00:02.1, from 26 to 25 (old native irq=3)
Yenta: CardBus bridge found at 0000:00:02.1 [0000:0000]
PCI: Bus 5, cardbus bridge: 0000:00:02.1
  IO window: 00000c00-00000dff
  IO window: 00001000-000011ff
  PREFETCH window: f0a00000-f0afffff
  MEM window: f0b00000-f0bfffff
Yenta: ISA IRQ mask 0x0000, PCI irq 25
Socket status: 30000007
pcmcia: parent PCI bridge I/O window: 0x0 - 0xffff
pcmcia: parent PCI bridge Memory window: 0xf0800000 - 0xf0ffffff
ds: ds_open(socket 0)

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Index: quirks.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/pci/quirks.c,v
retrieving revision 1.35
diff -u -p -r1.35 quirks.c
--- quirks.c	12 Nov 2005 04:08:03 -0000	1.35
+++ quirks.c	11 Dec 2005 22:22:58 -0000
@@ -862,6 +862,28 @@ static void __init quirk_eisa_bridge(str
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82375,	quirk_eisa_bridge );
 
 /*
+ * Cirrus 6832 Cardbus reports wrong irq on RDI Tadpole PARISC Laptop.
+ */
+#if defined(CONFIG_PARISC)
+static void __devinit quirk_hp_cardbus(struct pci_dev *dev)
+{
+        u8 irq, new_irq;
+
+	new_irq = dev->irq - 1;
+        pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
+
+	printk(KERN_ERR "PCI: Cirrus Cardbus IRQ fixup for %s, from %d to %d (old native irq=%d)\n",
+                        pci_name(dev), dev->irq, new_irq, irq);
+	dev->irq = new_irq;
+
+	udelay(15);     /* unknown if delay really needed */
+	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
+
+}
+DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_CIRRUS,	PCI_DEVICE_ID_CIRRUS_6832,	quirk_hp_cardbus );
+#endif
+
+/*
  * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
  * is not activated. The myth is that Asus said that they do not want the
  * users to be irritated by just another PCI Device in the Win98 device

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Copied to assorted architecture maintainers and mailing lists, please
trim cc: list back to lkml plus arch if you reply.

The generic version of read_trylock() never tests if the lock is in
use, it always spins waiting for the lock to be free.  IOW, it behaves
like read_lock().  Given the different implementations of rwlock_t, it
is hard for generic__raw_read_trylock() to do anything else.

I strongly recommend that the architectures below define their own
version of __raw_read_trylock() that really test the lock first, then
we can ditch generic__raw_read_trylock().  I have already sent an ia64
patch to that mailing list.

include/asm-arm/spinlock.h:#define __raw_read_trylock(lock) generic__raw_read_trylock(lock)
include/asm-ia64/spinlock.h:#define __raw_read_trylock(lock) generic__raw_read_trylock(lock)
include/asm-m32r/spinlock.h:#define __raw_read_trylock(lock) generic__raw_read_trylock(lock)
include/asm-mips/spinlock.h:#define __raw_read_trylock(lock) generic__raw_read_trylock(lock)
include/asm-parisc/spinlock.h:#define __raw_read_trylock(lock) generic__raw_read_trylock(lock)
include/asm-sh/spinlock.h:#define __raw_read_trylock(lock) generic__raw_read_trylock(lock)
include/asm-sparc64/spinlock.h:#define __raw_read_trylock(lock) generic__raw_read_trylock(lock)

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Xref: news.gmane.org gmane.linux.ports.parisc:23249

On Sun, Dec 11, 2005 at 11:35:02PM +0100, Helge Deller wrote:
> Grant helped me to analyze this problem.
> The pcmcia irq line seems to be allways off-by-one, e.g. PCI irq 25
> got local irq 2 on dino which was wrong and should have become "1".
> Grants comment on this was:
>  "Sounds like we need a quirk in drivers/pci/quirks.c to deal with this."

Before I propose the quirk to linux-pci, I need to know the scope of the
problem. Is this a problem only for that PCI slot on that box, for any
slot under dino, any PARISC PCI, or any PCI platform?

For starters, can someone test this on same card on a C3000 or A500?
Both of those use a routing table instead of magic values in PCI device
config registers.

# lspci -vs 00:02.0
0000:00:02.0 CardBus bridge: Cirrus Logic PD 6832 PCMCIA/CardBus Ctrlr (rev c1)
	Flags: bus master, medium devsel, latency 168, IRQ 25
	Memory at f0800000 (32-bit, non-prefetchable) [size=4K]
	Bus: primary=00, secondary=01, subordinate=04, sec-latency=176
	Memory window 0: f0c00000-f0fff000
	Memory window 1: f0900000-f09ff000
	I/O window 0: 00000400-000005ff
	I/O window 1: 00000800-000009ff
	16-bit legacy interface ports at 0001

>  "or our algorithm for routing IRQ_PIN to INTERRUPT_LINE routing is broken."

Right now, I can't convinced myself this is a PDC bug on platforms
with built-in Dino.  PDC fills in PCI_INTERRUPT_LINE (becomes pci_dev->irq)
value with the DINO input Interrupt Line (ie index into dino->global_irq[]).
This is used by dino code instead of a "Routing Table".

Other parisc boxes and most architectures use some form of
"IRQ Line Routing Table" to communicate PCI device IRQ_PIN output
to Interrupt Controller input lines mappings to the OS.

But other PCI LAN and SCSI cards work fine under built-in Dino AFAIK.
That's why I'm not sure about the scope of the problem.

> Based on that I just created the attached patch.
> With it pcmcia now works for me.

Yeah, the patch looks fine to me.
I'd just like confirmation that C3000 has the same problem before
I forget how all this works again.

If it doesn't, then we need to figure out how to make this
a dino specific "quirk".

> Maybe you have an idea if something in dino is wrong ?

I don't think there is anything wrong with dino.
Otherwise other cards wouldn't work right either.

thanks,
grant

> 
> Helge
> 
> dmesg:
> PCI: Cirrus Cardbus IRQ fixup for 0000:00:02.0, from 25 to 24 (old native irq=2)
> Yenta: CardBus bridge found at 0000:00:02.0 [0000:0000]
> PCI: Bus 1, cardbus bridge: 0000:00:02.0
>   IO window: 00000400-000005ff
>   IO window: 00000800-000009ff
>   PREFETCH window: f0c00000-f0ffffff
>   MEM window: f0900000-f09fffff
> Yenta: ISA IRQ mask 0x0000, PCI irq 24
> Socket status: 30000007
> pcmcia: parent PCI bridge I/O window: 0x0 - 0xffff
> pcmcia: parent PCI bridge Memory window: 0xf0800000 - 0xf0ffffff
> PCI: Cirrus Cardbus IRQ fixup for 0000:00:02.1, from 26 to 25 (old native irq=3)
> Yenta: CardBus bridge found at 0000:00:02.1 [0000:0000]
> PCI: Bus 5, cardbus bridge: 0000:00:02.1
>   IO window: 00000c00-00000dff
>   IO window: 00001000-000011ff
>   PREFETCH window: f0a00000-f0afffff
>   MEM window: f0b00000-f0bfffff
> Yenta: ISA IRQ mask 0x0000, PCI irq 25
> Socket status: 30000007
> pcmcia: parent PCI bridge I/O window: 0x0 - 0xffff
> pcmcia: parent PCI bridge Memory window: 0xf0800000 - 0xf0ffffff
> ds: ds_open(socket 0)

> Index: quirks.c
> ===================================================================
> RCS file: /var/cvs/linux-2.6/drivers/pci/quirks.c,v
> retrieving revision 1.35
> diff -u -p -r1.35 quirks.c
> --- quirks.c	12 Nov 2005 04:08:03 -0000	1.35
> +++ quirks.c	11 Dec 2005 22:22:58 -0000
> @@ -862,6 +862,28 @@ static void __init quirk_eisa_bridge(str
>  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82375,	quirk_eisa_bridge );
>  
>  /*
> + * Cirrus 6832 Cardbus reports wrong irq on RDI Tadpole PARISC Laptop.
> + */
> +#if defined(CONFIG_PARISC)
> +static void __devinit quirk_hp_cardbus(struct pci_dev *dev)
> +{
> +        u8 irq, new_irq;
> +
> +	new_irq = dev->irq - 1;
> +        pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
> +
> +	printk(KERN_ERR "PCI: Cirrus Cardbus IRQ fixup for %s, from %d to %d (old native irq=%d)\n",
> +                        pci_name(dev), dev->irq, new_irq, irq);
> +	dev->irq = new_irq;
> +
> +	udelay(15);     /* unknown if delay really needed */
> +	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
> +
> +}
> +DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_CIRRUS,	PCI_DEVICE_ID_CIRRUS_6832,	quirk_hp_cardbus );
> +#endif
> +
> +/*
>   * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
>   * is not activated. The myth is that Asus said that they do not want the
>   * users to be irritated by just another PCI Device in the Win98 device

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Subject: Re: [parisc-linux] Re: [PATCH] PCMCIA: Disable probing on parisc
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Cc: Russell King <rmk+pcmcia@arm.linux.org.uk>,
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Xref: news.gmane.org gmane.linux.ports.parisc:23250

On Mon, 2005-12-12 at 00:30 -0700, Grant Grundler wrote:
> Before I propose the quirk to linux-pci, I need to know the scope of the
> problem. Is this a problem only for that PCI slot on that box, for any
> slot under dino, any PARISC PCI, or any PCI platform?

Actually, that's the problem.  This device is a built in PCI<->PCMCIA
bridge in the tadpole.  I'm the one with the PCI<->PCMCIA card, and that
doesn't need this quirk.  So, as far as we know (until someone tries
other PCI<->PCMCIA cards) this is the only quirk needed.

So perhaps we should do it in dino_fixup_bus() instead.

James


> For starters, can someone test this on same card on a C3000 or A500?
> Both of those use a routing table instead of magic values in PCI device
> config registers.
> 
> # lspci -vs 00:02.0
> 0000:00:02.0 CardBus bridge: Cirrus Logic PD 6832 PCMCIA/CardBus Ctrlr (rev c1)
> 	Flags: bus master, medium devsel, latency 168, IRQ 25
> 	Memory at f0800000 (32-bit, non-prefetchable) [size=4K]
> 	Bus: primary=00, secondary=01, subordinate=04, sec-latency=176
> 	Memory window 0: f0c00000-f0fff000
> 	Memory window 1: f0900000-f09ff000
> 	I/O window 0: 00000400-000005ff
> 	I/O window 1: 00000800-000009ff
> 	16-bit legacy interface ports at 0001
> 
> >  "or our algorithm for routing IRQ_PIN to INTERRUPT_LINE routing is broken."
> 
> Right now, I can't convinced myself this is a PDC bug on platforms
> with built-in Dino.  PDC fills in PCI_INTERRUPT_LINE (becomes pci_dev->irq)
> value with the DINO input Interrupt Line (ie index into dino->global_irq[]).
> This is used by dino code instead of a "Routing Table".
> 
> Other parisc boxes and most architectures use some form of
> "IRQ Line Routing Table" to communicate PCI device IRQ_PIN output
> to Interrupt Controller input lines mappings to the OS.
> 
> But other PCI LAN and SCSI cards work fine under built-in Dino AFAIK.
> That's why I'm not sure about the scope of the problem.
> 
> > Based on that I just created the attached patch.
> > With it pcmcia now works for me.
> 
> Yeah, the patch looks fine to me.
> I'd just like confirmation that C3000 has the same problem before
> I forget how all this works again.
> 
> If it doesn't, then we need to figure out how to make this
> a dino specific "quirk".
> 
> > Maybe you have an idea if something in dino is wrong ?
> 
> I don't think there is anything wrong with dino.
> Otherwise other cards wouldn't work right either.
> 
> thanks,
> grant
> 
> > 
> > Helge
> > 
> > dmesg:
> > PCI: Cirrus Cardbus IRQ fixup for 0000:00:02.0, from 25 to 24 (old native irq=2)
> > Yenta: CardBus bridge found at 0000:00:02.0 [0000:0000]
> > PCI: Bus 1, cardbus bridge: 0000:00:02.0
> >   IO window: 00000400-000005ff
> >   IO window: 00000800-000009ff
> >   PREFETCH window: f0c00000-f0ffffff
> >   MEM window: f0900000-f09fffff
> > Yenta: ISA IRQ mask 0x0000, PCI irq 24
> > Socket status: 30000007
> > pcmcia: parent PCI bridge I/O window: 0x0 - 0xffff
> > pcmcia: parent PCI bridge Memory window: 0xf0800000 - 0xf0ffffff
> > PCI: Cirrus Cardbus IRQ fixup for 0000:00:02.1, from 26 to 25 (old native irq=3)
> > Yenta: CardBus bridge found at 0000:00:02.1 [0000:0000]
> > PCI: Bus 5, cardbus bridge: 0000:00:02.1
> >   IO window: 00000c00-00000dff
> >   IO window: 00001000-000011ff
> >   PREFETCH window: f0a00000-f0afffff
> >   MEM window: f0b00000-f0bfffff
> > Yenta: ISA IRQ mask 0x0000, PCI irq 25
> > Socket status: 30000007
> > pcmcia: parent PCI bridge I/O window: 0x0 - 0xffff
> > pcmcia: parent PCI bridge Memory window: 0xf0800000 - 0xf0ffffff
> > ds: ds_open(socket 0)
> 
> > Index: quirks.c
> > ===================================================================
> > RCS file: /var/cvs/linux-2.6/drivers/pci/quirks.c,v
> > retrieving revision 1.35
> > diff -u -p -r1.35 quirks.c
> > --- quirks.c	12 Nov 2005 04:08:03 -0000	1.35
> > +++ quirks.c	11 Dec 2005 22:22:58 -0000
> > @@ -862,6 +862,28 @@ static void __init quirk_eisa_bridge(str
> >  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82375,	quirk_eisa_bridge );
> >  
> >  /*
> > + * Cirrus 6832 Cardbus reports wrong irq on RDI Tadpole PARISC Laptop.
> > + */
> > +#if defined(CONFIG_PARISC)
> > +static void __devinit quirk_hp_cardbus(struct pci_dev *dev)
> > +{
> > +        u8 irq, new_irq;
> > +
> > +	new_irq = dev->irq - 1;
> > +        pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
> > +
> > +	printk(KERN_ERR "PCI: Cirrus Cardbus IRQ fixup for %s, from %d to %d (old native irq=%d)\n",
> > +                        pci_name(dev), dev->irq, new_irq, irq);
> > +	dev->irq = new_irq;
> > +
> > +	udelay(15);     /* unknown if delay really needed */
> > +	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
> > +
> > +}
> > +DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_CIRRUS,	PCI_DEVICE_ID_CIRRUS_6832,	quirk_hp_cardbus );
> > +#endif
> > +
> > +/*
> >   * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
> >   * is not activated. The myth is that Asus said that they do not want the
> >   * users to be irritated by just another PCI Device in the Win98 device

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Subject: Re: [parisc-linux] Re: [PATCH] PCMCIA: Disable probing on parisc
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On Monday 12 December 2005 15:45, James Bottomley wrote:
> On Mon, 2005-12-12 at 00:30 -0700, Grant Grundler wrote:
> > Before I propose the quirk to linux-pci, I need to know the scope of the
> > problem. Is this a problem only for that PCI slot on that box, for any
> > slot under dino, any PARISC PCI, or any PCI platform?
> 
> Actually, that's the problem.  This device is a built in PCI<->PCMCIA
> bridge in the tadpole.  I'm the one with the PCI<->PCMCIA card, and that
> doesn't need this quirk.  So, as far as we know (until someone tries
> other PCI<->PCMCIA cards) this is the only quirk needed.
> 
> So perhaps we should do it in dino_fixup_bus() instead.

I agree. As long as we don't know if this is a generic cirrus/parisc/dino problem I think it's not good to add code to the generic drivers/pci.c driver.
Furthermore, since I don't think there are many people out there who have the possibility to test cirrus pcmcia hw on parisc I would propose to put the (temporary) quirk in drivers/parisc/dino.c instead.
Attached is a patch for this parisc-specific quirk which works for me. 
Ok to commit to the local parisc CVS tree ?

Helge

BTW, I tested the orinoco_cs and ide_cs drivers. Both worked like a charm out of the box on my tadpole laptop (B160L) :-)

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Index: drivers/parisc/dino.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/dino.c,v
retrieving revision 1.36
diff -u -p -r1.36 dino.c
--- drivers/parisc/dino.c	11 Dec 2005 20:25:11 -0000	1.36
+++ drivers/parisc/dino.c	12 Dec 2005 21:10:14 -0000
@@ -436,6 +436,21 @@ static void dino_choose_irq(struct paris
 	dino_assign_irq(dino, irq, &dev->irq);
 }
 
+
+/*
+ * Cirrus 6832 Cardbus reports wrong irq on RDI Tadpole PARISC Laptop (deller@gmx.de)
+ * (the irqs are off-by-one, not sure yet if this is a cirrus, dino-hardware or dino-driver problem...)
+ */
+static void __devinit quirk_cirrus_cardbus(struct pci_dev *dev)
+{
+	u8 new_irq = dev->irq - 1;
+	printk(KERN_INFO "PCI: Cirrus Cardbus IRQ fixup for %s, from %d to %d\n",
+			pci_name(dev), dev->irq, new_irq);
+	dev->irq = new_irq;
+}
+DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_6832, quirk_cirrus_cardbus );
+
+
 static void __init
 dino_bios_init(void)
 {

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Subject: [parisc-linux] Merged new binutils.
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jda, randolph,

I merged a new binutils into cvs.parisc-linux.org. Anyone want to take a
look at why we have 38 regressions in ld?

This is probably my fault :)

Cheers,
Carlos.

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> I merged a new binutils into cvs.parisc-linux.org. Anyone want to take a
> look at why we have 38 regressions in ld?
> 
> This is probably my fault :)

cvs:

                === ld Summary ===

# of expected passes            215
# of expected failures          41
/home/dave/binutils-2.16.91/objdir/ld/ld-new 20051213

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: [PATCH] PCMCIA: Disable probing on parisc
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Cc: parisc-linux@lists.parisc-linux.org,
 James Bottomley <James.Bottomley@steeleye.com>,
 Grant Grundler <grundler@parisc-linux.org>,
 Russell King <rmk+pcmcia@arm.linux.org.uk>,
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To: Helge Deller <deller@gmx.de>
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On Mon, Dec 12, 2005 at 10:17:16PM +0100, Helge Deller wrote:
> I agree. As long as we don't know if this is a generic cirrus/parisc/dino problem I think it's not good to add code to the generic drivers/pci.c driver.
> Furthermore, since I don't think there are many people out there who have the possibility to test cirrus pcmcia hw on parisc I would propose to put the (temporary) quirk in drivers/parisc/dino.c instead.
> Attached is a patch for this parisc-specific quirk which works for me. 
> Ok to commit to the local parisc CVS tree ?

yes - please do.

> Helge
> 
> BTW, I tested the orinoco_cs and ide_cs drivers. Both worked like a charm out of the box on my tadpole laptop (B160L) :-)

Very cool :)

thanks,
grant



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Xref: news.gmane.org gmane.linux.ports.parisc:23255

On Tue, Dec 13, 2005 at 05:08:48PM -0500, John David Anglin wrote:
> > I merged a new binutils into cvs.parisc-linux.org. Anyone want to take a
> > look at why we have 38 regressions in ld?
> > 
> > This is probably my fault :)
> 
> cvs:
> 
>                 === ld Summary ===
> 
> # of expected passes            215
> # of expected failures          41
> /home/dave/binutils-2.16.91/objdir/ld/ld-new 20051213

Oh wow... that's CVS?

I guess we have something we need to fix. ld doesn't bootstrap properly
so it's a pretty serious buglet somewhere.

c.

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Subject: [parisc-linux] B1000 freeze after sym0:
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Xref: news.gmane.org gmane.linux.ports.parisc:23256

Hi!

I installed Debian 3.1_r0 on my B1000, but now i got problems at boot.
The machine hangs after the following message:

[...]
NET: Registered protocol family 1
sym0: <896> rev 0x4 at pci 0000:00:0f.0 irq 65
sym0: No NVRAM, ID 7, Fast-40, SE, parity checking

After that it does not react to any keyboard input, even the power button
doesn't work, i have to pull the power cord.

The strange thing is: if i search for bootable devices in the boot menu, and
select the harddrive (boot p1), everything works fine and the machine boots
to shell. I want to use the B1000 without keyboard an monitor, so this is
not an option an on every boot.

Any suggestions? Perhaps a few PALO options i dont know?

Thanks in advance,
  Oliver


Attached: /etc/palo.conf, partition table, dmesg from a working boot

/etc/palo.conf
--commandline=2/vmlinux root=/dev/sda4 initrd=2/initrd.img HOME=/
--recoverykernel=/boot/vmlinux-2.6.8-2-32-smp
--init-partitioned=/dev/sda

fdisk /dev/sda -l
Disk /dev/sda: 9100 MB, 9100044288 bytes
255 heads, 63 sectors/track, 1106 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1           4       32098+  f0  Linux/PA-RISC boot
/dev/sda2               5           8       32130   83  Linux
/dev/sda3            1045        1106      498015   82  Linux swap /Solaris
/dev/sda4               9        1044     8321670   83  Linux

Partition table entries are not in disk order

dmesg:
Linux version 2.6.8-2-32-smp (kyle@caradhras) (gcc version 3.3.5 (Debian
1:3.3.5-7)) #1 SMP Mon Feb 7 22:19:10 EST 2005
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005bc0 00000481 00000000 00000002 7802fefc 100000f0 00000008
000000b2 000000b2
vers  00000203
CPUID vers 17 rev 7 (0x00000227)
capabilities 0x3
model 9000/785/B1000
Total Memory: 256 Mb
initrd: 1fb29000-1ffee000
initrd: reserving 0fb29000-0ffee000 (mem_max 10000000)
On node 0 totalpages: 65536
  DMA zone: 65536 pages, LIFO batch:16
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
LCD display at f05d0008,f05d0000 registered
SMP: bootstrap CPU ID is 0
Built 1 zonelists
Kernel command line: root=/dev/sda4 HOME=/ console=tty0 sti=10/6/2/0
sti_font=VGA8x16 TERM=linux palo_kernel=2/vmlinux
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 262144k available
Calibrating delay loop... 598.01 BogoMIPS
Security Scaffold v1.0.0 initialized
Capability LSM initialized
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Brought up 1 CPUs
CPU0:  online
 domain 0: span ffffffff
  groups: 00000001 00000002 00000004 00000008 00000010 00000020 00000040
00000080 00000100 00000200 00000400 00000800 00001000 00002000 00004000
00008000 00010000 00020000 00040000 00080000 00100000 00200000 00400000
00800000 01000000 02000000 04000000 08000000 10000000 20000000 40000000
80000000
CPU1: offline
 domain 0: span ffffffff
  groups: 00000002 00000004 00000008 00000010 00000020 00000040 00000080
00000100 00000200 00000400 00000800 00001000 00002000 00004000 00008000
00010000 00020000 00040000 00080000 00100000 00200000 00400000 00800000
01000000 02000000 04000000 08000000 10000000 20000000 40000000 80000000
00000001
CPU2: offline
 domain 0: span ffffffff
  groups: 00000004 00000008 00000010 00000020 00000040 00000080 00000100
00000200 00000400 00000800 00001000 00002000 00004000 00008000 00010000
00020000 00040000 00080000 00100000 00200000 00400000 00800000 01000000
02000000 04000000 08000000 10000000 20000000 40000000 80000000 00000001
00000002

[message CPU3 - CPU31 cut]

checking if image is initramfs...it isn't (ungzip failed); looks like an
initrd
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. AllegroLow W at 0xfffa0000 [32] { 0, 0x0, 0x5bc, 0x00004 }
7. Memory at 0xfed10200 [49] { 1, 0x0, 0x087, 0x00009 }
CPU(s): 1 x PA8500 (PCX-W) at 300.000000 MHz
SBA found Astro 2.1 at 0xfed00000
lba version TR2.1 (0x2) found at 0xfed30000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
PCI: Enabled native mode for NS87415 (pif=0x8f)
lba version TR2.1 (0x2) found at 0xfed32000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
lba version TR2.1 (0x2) found at 0xfed38000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
lba version TR2.1 (0x2) found at 0xfed3c000
WARNING: Ignoring enabled ELMMIO BASE 0xf8000000  SIZE 0xfc000000
iosapic: hpa not registered for 0000:03:02.0
SCSI subsystem initialized
TC classifier action (bugs to netdev@oss.sgi.com cc hadi@cyberus.ca)
STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f7000000 (2048 kB), fb at fa000000 (32 MB)
    id 2fc1066b-9a02587, conforms to spec rev. 8.09
    graphics card name: HPA4552A
stifb: 'HPA4552A' (id: 0x2fc1066b) not supported.
unwind_init: start = 0x103b5720, end = 0x103d6f20, entries = 8576
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Initializing Cryptographic API
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 64)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
Soft power switch enabled, polling @ 0xf0400804.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 25 ports, IRQ sharing enabled
ttyS0 at I/O 0x3f8 (irq = 99) is a 16550A
ttyS1 at I/O 0x2f8 (irq = 100) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
mice: PS/2 mouse device common for all mice
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 12Kbytes
TCP: Hash tables configured (established 4096 bind 6553)
RAMDISK: cramfs filesystem found at block 0
RAMDISK: Loading 4884 blocks [1 disk] into ram disk... done.
VFS: Mounted root (cramfs filesystem) readonly.
Freeing unused kernel memory: 344k freed
NET: Registered protocol family 1
sym0: <896> rev 0x4 at pci 0000:00:0f.0 irq 65
sym0: No NVRAM, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18k
Using anticipatory io scheduler
sym1: <896> rev 0x4 at pci 0000:00:0f.1 irq 65
sym1: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.1.18k
  Vendor: QUANTUM   Model: ATLAS10K-9LVD     Rev: HP06
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym1:6:0: tagged command queuing enabled, command queue depth 16.
scsi(1:0:6:0): Beginning Domain Validation
sym1:6: wide asynchronous.
sym1:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25.0 ns, offset 31)
scsi(1:0:6:0): Domain Validation skipping write tests
scsi(1:0:6:0): Ending Domain Validation
usbcore: registered new driver hub
ohci_hcd: 2004 Feb 02 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci_hcd: block sizes: ed 64 td 64
ohci_hcd 0000:00:0e.2: National Semiconductor Corporation USB Controller
ohci_hcd 0000:00:0e.2: reset, control = 0x110
ohci_hcd 0000:00:0e.2: irq 97, pci mem f4007000
ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:0e.2: Using NSC SuperIO setup
usb usb1: new device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: default language 0x0409
usb usb1: Product: National Semiconductor Corporation USB Controller
usb usb1: Manufacturer: Linux 2.6.8-2-32-smp ohci_hcd
usb usb1: SerialNumber: 0000:00:0e.2
usb usb1: hotplug
usb usb1: adding 1-0:1.0 (config #1, interface 0)
usb 1-0:1.0: hotplug
hub 1-0:1.0: usb_probe_interface
hub 1-0:1.0: usb_probe_interface - got id
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
hub 1-0:1.0: standalone hub
hub 1-0:1.0: ganged power switching
hub 1-0:1.0: no over-current protection
hub 1-0:1.0: power on to power good time: 0ms
hub 1-0:1.0: local power source is good
hub 1-0:1.0: enabling power on all ports
ohci_hcd 0000:00:0e.2: created debug files
ohci_hcd 0000:00:0e.2: OHCI controller state
ohci_hcd 0000:00:0e.2: OHCI 1.0, with legacy support registers
ohci_hcd 0000:00:0e.2: control 0x083 HCFS=operational CBSR=3
ohci_hcd 0000:00:0e.2: cmdstatus 0x00000 SOC=0
ohci_hcd 0000:00:0e.2: intrstatus 0x00000044 RHSC SF
ohci_hcd 0000:00:0e.2: intrenable 0x8000001a MIE UE RD WDH
ohci_hcd 0000:00:0e.2: hcca frame #0021
ohci_hcd 0000:00:0e.2: roothub.a 00001003 POTPGT=0 NOCP NDP=3
ohci_hcd 0000:00:0e.2: roothub.b 00000000 PPCM=0000 DR=0000
ohci_hcd 0000:00:0e.2: roothub.status 00008000 DRWE
ohci_hcd 0000:00:0e.2: roothub.portstatus [0] 0x00010301 CSC LSDA PPS CCS
ohci_hcd 0000:00:0e.2: roothub.portstatus [1] 0x00010301 CSC LSDA PPS CCS
ohci_hcd 0000:00:0e.2: roothub.portstatus [2] 0x00000100 PPS
usbcore: registered new driver usbkbd
drivers/usb/input/usbkbd.c: :USB HID Boot Protocol keyboard driver
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
Linux Tulip driver version 1.1.13 (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1200 status 7809 advertising 01e1.
ohci_hcd 0000:00:0e.2: GetStatus roothub.portstatus [0] = 0x00010301 CSC
LSDA PPS CCS
hub 1-0:1.0: port 1, status 0301, change 0001, 1.5 Mb/s
eth0: Digital DS21143 Tulip rev 65 at 0xf4008000, 00:10:83:CF:A6:DC, IRQ 66.
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x301
ohci_hcd 0000:00:0e.2: GetStatus roothub.portstatus [0] = 0x00100303 PRSC
LSDA PPS PES CCS
usb 1-1: new low speed USB device using address 2
usb 1-1: skipped 1 descriptor after interface
usb 1-1: new device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-1: default language 0x0409
usb 1-1: Product: N43
usb 1-1: Manufacturer: Logitech
usb 1-1: hotplug
usb 1-1: adding 1-1:1.0 (config #1, interface 0)
usb 1-1:1.0: hotplug
usbhid 1-1:1.0: usb_probe_interface
usbhid 1-1:1.0: usb_probe_interface - got id
input: USB HID v1.00 Mouse [Logitech N43] on usb-0000:00:0e.2-1
ohci_hcd 0000:00:0e.2: GetStatus roothub.portstatus [1] = 0x00010301 CSC
LSDA PPS CCS
hub 1-0:1.0: port 2, status 0301, change 0001, 1.5 Mb/s
hub 1-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x301
ohci_hcd 0000:00:0e.2: GetStatus roothub.portstatus [1] = 0x00100303 PRSC
LSDA PPS PES CCS
usb 1-2: new low speed USB device using address 3
usb 1-2: skipped 1 descriptor after interface
usb 1-2: skipped 1 descriptor after interface
usb 1-2: new device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-2: default language 0x0409
usb 1-2: Product: USB Keyboard and Mouse
usb 1-2: Manufacturer: SILITEK
usb 1-2: hotplug
usb 1-2: adding 1-2:1.0 (config #1, interface 0)
usb 1-2:1.0: hotplug
usbkbd 1-2:1.0: usb_probe_interface
usbkbd 1-2:1.0: usb_probe_interface - got id
input: SILITEK USB Keyboard and Mouse on usb-0000:00:0e.2-2
usb 1-2: adding 1-2:1.1 (config #1, interface 1)
usb 1-2:1.1: hotplug
usbhid 1-2:1.1: usb_probe_interface
usbhid 1-2:1.1: usb_probe_interface - got id
input: USB HID v1.00 Mouse [SILITEK USB Keyboard and Mouse] on
usb-0000:00:0e.2-2
NS87415: IDE controller at PCI slot 0000:00:0e.0
NS87415: chipset revision 3
NS87415: 100% native mode on irq 103
    ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:pio, hdd:pio
hda: CD-532E-B, ATAPI CD/DVD-ROM drive
ide0 at 0xf00-0xf07,0xe02 on irq 103
hda: ATAPI 32X CD-ROM drive, 128kB Cache
Uniform CD-ROM driver Revision: 3.20
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sda: drive cache: write back
 /dev/scsi/host1/bus0/target6/lun0: p1 p2 p3 p4
Attached scsi disk sda at scsi1, channel 0, id 6, lun 0
Adding 498004k swap on /dev/sda3.  Priority:-1 extents:1
ad1889: ad1889 at 0xf400c000 IRQ 67
ac97_codec: AC97 Audio codec, id: ADS3 (Analog Devices AD1819)
ehci_hcd: block sizes: qh 128 qtd 96 itd 192 sitd 96
USB Universal Host Controller Interface driver v2.2
ts: Compaq touchscreen protocol output
NET: Registered protocol family 17
module ipv6 relocation of symbol capable is out of range (0x3ffeffdc in 17
bits)
eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.


-- 
GMX DSL-Flatrate 1 Jahr kostenlos* + WLAN-Router ab 0,- Euro*
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> > I merged a new binutils into cvs.parisc-linux.org. Anyone want to take a
> > look at why we have 38 regressions in ld?
> > 
> Sorry, I don't have any more access to cvs :-(
> mmm (should be most egoistic) couldn't it be placed a compressed co on
> cvs.p-l.org/download as build-tools-latest.tar.gz?
> (just forget if it's too much work ;-)

There are some snapshots here:
ftp://sourceware.org/pub/binutils/snapshots/.

The version kept at cvs.parisc-linux.org is mainly for TLS development.
It's not generally kept up to date.  Other than for TLS, the work of
maintaining parisc binutils is being done directly in the binutils cvs.
In the early days of parisc-linux, there were a variety of parisc bug
fixes in the parisc tree.  However, these were all merged several years
ago.

H.J.L supports a "linux" version of binutils, but it's not regularly
tested on parisc as far as I know.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hi!

Heiner991@gmx.de wrote:
> I installed Debian 3.1_r0 on my B1000, but now i got problems at boot.
> The machine hangs after the following message:
> 
> [...]
> NET: Registered protocol family 1
> sym0: <896> rev 0x4 at pci 0000:00:0f.0 irq 65
> sym0: No NVRAM, ID 7, Fast-40, SE, parity checking
> [...]

I "solved" it: I disconnected keyboard, mice and monitor, now the
machine boots nicely and i get access via ssh. It's the first time i see
a connected/disconnected USB-Keyboard got something to do with a
SCSI driver, but it "works for me" now.

If someone is still interested in really solving this problem i'm glad
to give further informations or compiling kernels etc...


Greetings,
Oliver

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On Tue, Nov 15, 2005 at 05:44:53PM +0200, Vesa Ruokonen wrote:
...
> The rp8400 is stuck again, now it dies silently after detecting loop devices.
> PIM and some other data is logged at;
>  http://vantaa.fv.fi/00/palinux/rp8400-loop.txt
> Any ideas?

Can you decode 000000001030b504 (HPMC GR02) and 0x000000001030ae7c (IIA)
into kernel symbols?

It's odd that System Requestor is all Zero here:
System Responder Address     = 0xfffffffffc078000
System Requestor Address     = 0x0000000000000000

Based on previous console output, the target device is the
first CPU "Unknown machine". Sounds like IPI failed?
Or is that perhaps the first attempt to deliver interrupts
from an IO device?

grant
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On Wed, Dec 14, 2005 at 06:30:36PM +0100, Oliver Grafe wrote:
> I "solved" it: I disconnected keyboard, mice and monitor, now the
> machine boots nicely and i get access via ssh. It's the first time i see
> a connected/disconnected USB-Keyboard got something to do with a
> SCSI driver, but it "works for me" now.
> 
> If someone is still interested in really solving this problem i'm glad
> to give further informations or compiling kernels etc...

I suspect a recent kernel, such as
http://cvs.parisc-linux.org/download/linux-2.6/autobuild/c3000_defconfig/palinux-c3000-defconfig-2.6.15-rc5-pa5_0-2_all.deb
would work.  ISTR a bug was fixed related to having USB keyboards
enabled at boot.
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On Thu, Dec 15, 2005 at 10:58:42PM -0700, Keven Tipping wrote:
> Greetings to all!
> 
> I have a K370 here, all reasonable attempts to boot it have failed miserably.
> The only thing that boots is the Gentoo 2005 Live CD and I have no clue why :(.
> 
> Here is the bootup log.
...
> 12. HP HSC-PCI Cards at 0xf1808000 [10/8] { 4, 0x0, 0x004, 0x0009d }
> 13. Gecko BOA BC GSC+ Port at 0xf1810000 [10/16] { 7, 0x0, 0x500, 0x0000c }
> 14. Gecko BOA BC HP-PB Port at 0xf1a3c000 [10/16/60] { 7, 0x0, 0x103, 0x0000c }
> 15. U2-IOA BC GSC+ Port at 0xf183f000 [10/63] { 7, 0x1, 0x501, 0x0000c }
> 16. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0xf, 0x580, 0x0000b }
> 17. Shrike Add-on FW-SCSI at 0xf1008000 [8/8] { 4, 0x1, 0x014, 0x00089 }
> 18. HP HSC-PCI Cards at 0xf100c000 [8/12] { 4, 0x0, 0x004, 0x0009d }

My first guess was the "HSC-PCI" cards are the root of some new problem...

...
> Found GeckoBoa at 0xf1804000
> Found GeckoBoa at 0xf1810000
> Dino version 3.x (card mode) found at 0xf100c000
> Dino version 3.x (card mode) found at 0xf1808000

which are better known as "Card Mode Dino". But I don't think
that's the case since I never saw evidence of tulip getting loaded
nor any problem with configuring LAN.


>  * Calculating module dependencies ...                                    [ ok ]
>  * Using /etc/modules.autoload.d/kernel-2.6 as config:
>  *   Loading module lasi_82596 ...                                        [ ok ]

Note that this LAN driver worked fine. Firmware programs
the MMIO address range for this card.
Any reason why tulip driver didn't get auto-loaded here?

...
>  *   Bringing up eth0
>  *     10.0.1.202

Which I expect to be the LASI NIC.

...
>  * Mounting network filesystems ...                                       [ ok ]
> Kernel panic - not syncing: Kernel Fault
> 
> What happens here is that it sticks at "Mounting Network Filesystems".
> If I press any key on my Serial console here, then it goes off and panics.

Which suggests it's a problem with the Mux Driver somehow.
I expect a "login:" prompt to be the next output.

At one point there were issues with MUX driver keyboard input.
Maybe those issues have resurfaced in a new way now.

...
> I'm not sure whats wrong here, and rebooting this beast is a very long
> process (20 minutes each time).
> 
> Does anyone have any ideas?
...
> I'd really like to run Linux on this mammoth somehow, but I've tried
> everything I can think of with no sucssess (except the Gentoo Live CD,
> but that doesn't really do anything other then let me setup the system
> and compile a kernel).

Start comparing the Gentoo Live CD kernel with the nearest revision
from debian or otherwise that fails.  MUX driver and serial support
in particular.

hth,
grant
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Subject: [parisc-linux] Unknown FPU exception, help needed, please decode.
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pa,

Running some more compliant fpu code in glibc causes this:

arch/parisc/math-emu/decode_exc.c(351) Unknown FPU exception 0x23
arch/parisc/math-emu/decode_exc.c(351) Unknown FPU exception 0x23
...

Could someone please decode the FPU exception and tell me if the kernel
is doing the right thing?

c.

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> arch/parisc/math-emu/decode_exc.c(351) Unknown FPU exception 0x23
> arch/parisc/math-emu/decode_exc.c(351) Unknown FPU exception 0x23
> ...
> 
> Could someone please decode the FPU exception and tell me if the kernel
> is doing the right thing?

 From page 10-3 in the PA2.0 arch book, this seems to be the 
"unimplemented" exception.

Pages 10-8 and 10-9 goes on to say:
A conversion to a floating poiint format always causes an unimplemented 
exception when the result overflows, the result lies too far outside the 
range for the exponent to be bias-adjusted, and the overflow trap is 
enabled. [...]

Similarly, an unimplemented exception is always caused by a conversion 
to a floating-point format that underflows, lies too far outside the 
range for the exponent to be bias-adjusted, and the underflow trap is 
enabled.  [...]

Finally, the unimplemented exception is always signaled when the operand 
of a conversion to an integer format is a NaN. Low-level trap handlers 
may choose to silently deliver a result or convert it to an invalid 
exception.

Do any of these apply to your test case?

randolph
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Subject: Re: [parisc-linux] Unknown FPU exception, help needed, please decode.
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On Fri, Dec 16, 2005 at 07:54:59AM +0800, Randolph Chung wrote:
> >arch/parisc/math-emu/decode_exc.c(351) Unknown FPU exception 0x23
> >arch/parisc/math-emu/decode_exc.c(351) Unknown FPU exception 0x23
> >...
> >
> >Could someone please decode the FPU exception and tell me if the kernel
> >is doing the right thing?
> 
> From page 10-3 in the PA2.0 arch book, this seems to be the 
> "unimplemented" exception.

Cool, I assume it should print "Unimplemented" exception instead of
"Unknown."
 
> Pages 10-8 and 10-9 goes on to say:
> A conversion to a floating poiint format always causes an unimplemented 
> exception when the result overflows, the result lies too far outside the 
> range for the exponent to be bias-adjusted, and the overflow trap is 
> enabled. [...]

Might have some of this.

> Similarly, an unimplemented exception is always caused by a conversion 
> to a floating-point format that underflows, lies too far outside the 
> range for the exponent to be bias-adjusted, and the underflow trap is 
> enabled.  [...]

Might have some of this.

> Finally, the unimplemented exception is always signaled when the operand 
> of a conversion to an integer format is a NaN. Low-level trap handlers 
> may choose to silently deliver a result or convert it to an invalid 
> exception.

Might have some of this.

> Do any of these apply to your test case?

It's the glibc fp testsuite. We test for a lot of things, I need to
narrow down the insn sequence causing the exception.

I've never seen this print before. Atleast not with the older
sysdeps/hppa/fpu/* bits in place.

c.

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Subject: Re: [parisc-linux] Unknown FPU exception, help needed, please decode.
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On Thu, Dec 15, 2005 at 08:13:18PM -0500, Carlos O'Donell wrote:
> It's the glibc fp testsuite. We test for a lot of things, I need to
> narrow down the insn sequence causing the exception.
> 
> I've never seen this print before. Atleast not with the older
> sysdeps/hppa/fpu/* bits in place.

Maybe the glibc test has changed too?

grant
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Subject: [parisc-linux] Gentoo & PARisc Kernel broken?
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Greetings to all!

I have a K370 here, all reasonable attempts to boot it have failed miserably.
The only thing that boots is the Gentoo 2005 Live CD and I have no clue why :(.

Here is the bootup log.

Main Menu: Enter command or menu > ls

---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > bo fwscsi.3
Interact with IPL (Y, N, or Cancel)?> Y

Booting...
Boot IO Dependent Code (IODC) revision 152


HARD Booted.
palo ipl 1.8 root@livecd Wed Dec 14 17:02:54 MST 2005

Partition Start(MB) End(MB) Id Type
1               1      39   f0 Palo
2              40     133   83 ext2
3             134    8707   83 ext2

PALO(F0) partition contains:

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).Current command line:
2/vmlinux root=/dev/sda3 console=ttyB0
 0: 2/vmlinux
 1: root=/dev/sda3
 2: console=ttyB0

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? b

Command line for kernel: 'root=/dev/sda3 console=ttyB0 single palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
ELF32 executable
Entry 00100100 first 00100000 n 3
Segment 0 load 00100000 size 3580800 mediaptr 0x1000
Segment 1 load 0046b000 size 1334164 mediaptr 0x36c000
Segment 2 load 00000000 size 0 mediaptr 0x0
Branching to kernel entry point 0x00100100.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.15-rc5-pa5 (root@livecd) (gcc version 3.3.5 (Gentoo 3.3.5-r1, pie-8.7.7.1)) #1 SMP Thu Dec 15 14:49:24 MST 2005
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005b10 00000491 00000000 00000000 291a830d 100000f1 00000008 000000b2 000000b2
vers  00000501
CPUID vers 14 rev 23 (0x000001d7)
capabilities 0x3
model 9000/898/K370
Total Memory: 2175 MB
SMP: bootstrap CPU ID is 0
Built 1 zonelists
Kernel command line: root=/dev/sda3 console=ttyB0 single palo_kernel=2/vmlinux
PID hash table entries: 4096 (order: 12, 65536 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 524288 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 262144 (order: 8, 1048576 bytes)
Memory: 2228200k available
Mount-cache hash table entries: 512
Brought up 1 CPUs
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0xf, 0x580, 0x0000b }
2. Mohawk Core BA at 0xffd00000 [10/12] { 11, 0x0, 0x044, 0x00081 },  additional addresses: 0xffd0c000 0xffc00000
3. Mohawk Core SCSI at 0xffd06000 [10/12/5] { 10, 0x0, 0x044, 0x00082 }
4. Mohawk Core LAN (802.3) at 0xffd07000 [10/12/6] { 10, 0x0, 0x044, 0x0008a }
5. Mohawk Core Centronics at 0xffd02000 [10/12/0] { 10, 0x0, 0x044, 0x00074 },  additional addresses: 0xffd01000 0xffd03000
6. Mohawk Core PS/2 Port at 0xffd08000 [10/12/7] { 10, 0x0, 0x044, 0x00084 }
7. Mohawk Core PS/2 Port at 0xffd08100 [10/12/8] { 10, 0x0, 0x044, 0x00084 }
8. Mohawk Core FW-SCSI at 0xf1800000 [10/0] { 4, 0x0, 0x044, 0x00089 }
9. Gecko BOA BC GSC+ Port at 0xf1804000 [10/4] { 7, 0x0, 0x500, 0x0000c }
10. Sahp Baat Kiuh AP/MUX at 0xf1900000 [10/4/0] { 5, 0x0, 0x044, 0x0000d }
11. Gecko BOA BC HP-PB Port at 0xf193c000 [10/4/60] { 7, 0x0, 0x103, 0x0000c }
12. HP HSC-PCI Cards at 0xf1808000 [10/8] { 4, 0x0, 0x004, 0x0009d }
13. Gecko BOA BC GSC+ Port at 0xf1810000 [10/16] { 7, 0x0, 0x500, 0x0000c }
14. Gecko BOA BC HP-PB Port at 0xf1a3c000 [10/16/60] { 7, 0x0, 0x103, 0x0000c }
15. U2-IOA BC GSC+ Port at 0xf183f000 [10/63] { 7, 0x1, 0x501, 0x0000c }
16. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0xf, 0x580, 0x0000b }
17. Shrike Add-on FW-SCSI at 0xf1008000 [8/8] { 4, 0x1, 0x014, 0x00089 }
18. HP HSC-PCI Cards at 0xf100c000 [8/12] { 4, 0x0, 0x004, 0x0009d }
19. U2-IOA BC GSC+ Port at 0xf103f000 [8/63] { 7, 0x1, 0x501, 0x0000c }
20. BraveHawk 200MHz DC3 (899/K570) at 0xfffa0000 [32] { 0, 0x0, 0x5b1, 0x00004 }
21. BraveHawk 200MHz DC3 (899/K570) at 0xfffa2000 [34] { 0, 0x0, 0x5b1, 0x00004 }
22. BraveHawk 200MHz DC3 (899/K570) at 0xfffa4000 [36] { 0, 0x0, 0x5b1, 0x00004 }
23. BraveHawk 200MHz DC3 (899/K570) at 0xfffa6000 [38] { 0, 0x0, 0x5b1, 0x00004 }
24. BraveHawk 200MHz DC3 (899/K570) at 0xfffac000 [44] { 0, 0x0, 0x5b1, 0x00004 }
25. BraveHawk 200MHz DC3 (899/K570) at 0xfffae000 [46] { 0, 0x0, 0x5b1, 0x00004 }
26. Memory at 0xfffb1000 [49] { 1, 0x0, 0x032, 0x00009 }
Releasing cpu 1 now, hpa=fffa2000
FP[1] enabled: Rev 0 Model 14
Releasing cpu 2 now, hpa=fffa4000
FP[2] enabled: Rev 0 Model 14
Releasing cpu 3 now, hpa=fffa6000
FP[3] enabled: Rev 0 Model 14
Releasing cpu 4 now, hpa=fffac000
FP[4] enabled: Rev 0 Model 14
Releasing cpu 5 now, hpa=fffae000
FP[5] enabled: Rev 0 Model 14
CPU(s): 6 x PA8200 (PCX-U+) at 200.000000 MHz
Setting cache flush threshold to 140 (6 CPUs online)
Found U2 at 0xfff8a000
Found U2 at 0xfff88000
Lasi version 0 at 0xffd00000 found.
LED display at ffd0c000 registered
Found GeckoBoa at 0xf1804000
Found GeckoBoa at 0xf1810000
Dino version 3.x (card mode) found at 0xf100c000
Dino version 3.x (card mode) found at 0xf1808000
SCSI subsystem initialized
usbcore: registered new driver usbfs
usbcore: registered new driver hub
unwind_init: start = 0x1046cfe0, end = 0x1049a3b0, entries = 11581
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
PDC Stable Storage facility v0.10
Soft power switch support not available.
STI GSC/PCI core graphics driver Version 0.9a
lp: driver loaded but no devices found
Generic RTC Driver v1.07
serio: GSC PS/2 keyboard port at 0xffd08000 irq 19 @ 10:12:7
serio: GSC PS/2 mouse port at 0xffd08100 irq 19 @ 10:12:8
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
Serial mux driver (8 ports) Revision: 0.3
ttyB0 at MMIO 0xf1900800 (polled) is a Mux
ttyB1 at MMIO 0xf1900880 (polled) is a Mux
ttyB2 at MMIO 0xf1900900 (polled) is a Mux
ttyB3 at MMIO 0xf1900980 (polled) is a Mux
ttyB4 at MMIO 0xf1900a00 (polled) is a Mux
ttyB5 at MMIO 0xf1900a80 (polled) is a Mux
ttyB6 at MMIO 0xf1900b00 (polled) is a Mux
ttyB7 at MMIO 0xf1900b80 (polled) is a Mux
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 18 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
zalon_probe: Zalon version 1, IRQ 69
ncr53c720-0: rev 0xf irq 69
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3g
zalon_probe: Zalon version 1, IRQ 70
ncr53c720-1: rev 0xf irq 70
ncr53c720-1: ID 7, Fast-10, Parity Checking, Differential
scsi1 : ncr53c8xx-3.4.3g
  Vendor: QUANTUM   Model: VIKING II 9.1WLS  Rev: 3506
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target1:0:3: Beginning Domain Validation
 target1:0:3: asynchronous.
 target1:0:3: wide asynchronous.
 target1:0:3: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
 target1:0:3: Domain Validation skipping write tests
 target1:0:3: Ending Domain Validation
  Vendor: QUANTUM   Model: VIKING II 9.1WLS  Rev: 3506
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target1:0:4: Beginning Domain Validation
 target1:0:4: asynchronous.
 target1:0:4: wide asynchronous.
 target1:0:4: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
 target1:0:4: Domain Validation skipping write tests
 target1:0:4: Ending Domain Validation
  Vendor: QUANTUM   Model: VIKING II 9.1WLS  Rev: 3506
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target1:0:5: Beginning Domain Validation
 target1:0:5: asynchronous.
 target1:0:5: wide asynchronous.
 target1:0:5: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
 target1:0:5: Domain Validation skipping write tests
 target1:0:5: Ending Domain Validation
  Vendor: QUANTUM   Model: VIKING II 9.1WLS  Rev: 3506
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target1:0:6: Beginning Domain Validation
 target1:0:6: asynchronous.
 target1:0:6: wide asynchronous.
 target1:0:6: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
 target1:0:6: Domain Validation skipping write tests
 target1:0:6: Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi2: 53c710 rev 2
scsi2 : LASI SCSI 53c700
  Vendor: PIONEER   Model: DVD-ROM DVD-303   Rev: 1.06
  Type:   CD-ROM                             ANSI SCSI revision: 02
 target2:0:2: Beginning Domain Validation
 target2:0:2: asynchronous.
 target2:0:2: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 8)
 target2:0:2: Domain Validation skipping write tests
 target2:0:2: Ending Domain Validation
  Vendor: TOSHIBA   Model: CD-ROM XM-5401TA  Rev: 3115
  Type:   CD-ROM                             ANSI SCSI revision: 02
 target2:0:3: Beginning Domain Validation
 target2:0:3: asynchronous.
 target2:0:3: FAST-5 SCSI 4.2 MB/s ST (236 ns, offset 8)
 target2:0:3: Domain Validation skipping write tests
 target2:0:3: Ending Domain Validation
st: Version 20050830, fixed bufsize 32768, s/g segs 256
SCSI device sda: 17836668 512-byte hdwr sectors (9132 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 17836668 512-byte hdwr sectors (9132 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3
sd 1:0:3:0: Attached scsi disk sda
SCSI device sdb: 17836668 512-byte hdwr sectors (9132 MB)
SCSI device sdb: drive cache: write back
SCSI device sdb: 17836668 512-byte hdwr sectors (9132 MB)
SCSI device sdb: drive cache: write back
 sdb: sdb1 sdb2
sd 1:0:4:0: Attached scsi disk sdb
SCSI device sdc: 17836668 512-byte hdwr sectors (9132 MB)
SCSI device sdc: drive cache: write back
SCSI device sdc: 17836668 512-byte hdwr sectors (9132 MB)
SCSI device sdc: drive cache: write back
 sdc: sdc1
sd 1:0:5:0: Attached scsi disk sdc
SCSI device sdd: 17836668 512-byte hdwr sectors (9132 MB)
SCSI device sdd: drive cache: write back
SCSI device sdd: 17836668 512-byte hdwr sectors (9132 MB)
SCSI device sdd: drive cache: write back
 sdd: sdd1
sd 1:0:6:0: Attached scsi disk sdd
sr0: scsi3-mmc drive: 0x/0x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.20
sr1: scsi-1 drive
sd 1:0:3:0: Attached scsi generic sg0 type 0
sd 1:0:4:0: Attached scsi generic sg1 type 0
sd 1:0:5:0: Attached scsi generic sg2 type 0
sd 1:0:6:0: Attached scsi generic sg3 type 0
sr 2:0:2:0: Attached scsi generic sg4 type 5
sr 2:0:3:0: Attached scsi generic sg5 type 5
usbmon: debugfs is not available
mice: PS/2 mouse device common for all mice
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
   8regs     :   428.000 MB/sec
   8regs_prefetch:   364.000 MB/sec
   32regs    :   432.000 MB/sec
   32regs_prefetch:   388.000 MB/sec
raid5: using function: 32regs (432.000 MB/sec)
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
oprofile: using timer interrupt.
NET: Registered protocol family 2
IP route cache hash table entries: 131072 (order: 7, 524288 bytes)
TCP established hash table entries: 262144 (order: 9, 3145728 bytes)
TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: Badness in smp_call_function at arch/parisc/kernel/smp.c:348
Backtrace:
 [<10116430>] smp_call_function+0x374/0x3a4
 [<101065bc>] flush_data_cache+0x24/0x40
 [<10105764>] free_initmem+0x64/0x228
 [<10104e84>] init+0x2dc/0x3c8
 [<1010dc5c>] ret_from_kernel_thread+0x1c/0x24

484k freed
INIT: version 2.86 booting

Gentoo Linux; http://www.gentoo.org/
 Copyright 1999-2005 Gentoo Foundation; Distributed under the GPLv2

 * Mounting proc at /proc ...                                             [ ok ]
 * Mounting sysfs at /sys ...                                             [ ok ]
 * Mounting /dev for udev ...                                             [ ok ]
 * Configuring system to use udev ...
 *   Populating /dev with device nodes ...
 *   Setting /sbin/udevsend as hotplug agent ...
                                                                          [ ok ]
 * Mounting devpts at /dev/pts ...                                        [ ok ]
 * Activating (possible) swap ...Adding 2008084k swap on /dev/sdb1.  Priority:-1 extents:1 across:2008084k
                                         [ ok ]
 * Remounting root filesystem read-only (if necessary) ...                [ ok ]
 * Checking root filesystem .../dev/sda3: clean, 2162/1097728 files, 75932/2194880 blocks
                                           [ ok ]
 * Remounting root filesystem read/write ...                              [ ok ]
 * Setting hostname to nova ...                                           [ ok ]
 * Calculating module dependencies ...                                    [ ok ]
 * Using /etc/modules.autoload.d/kernel-2.6 as config:
 *   Loading module lasi_82596 ...                                        [ ok ]
 * Autoloaded 1 module(s)
 * Checking all filesystems .../dev/sda2: clean, 13/24192 files, 13497/96388 blocks
/dev/sdb2: recovering journal
/dev/sdc1: recovering journal
/dev/sdd1: recovering journal
/dev/sdc1: clean, 183415/1115040 files, 379438/2229010 blocks
/dev/sdd1: clean, 12/1115040 files, 43208/2229010 blocks
/dev/sdb2: clean, 25458/864960 files, 62574/1726987 blocks
                                           [ ok ]
 * Mounting local filesystems ...                                         [ ok ]
 * Activating (possibly) more swap ...                                    [ ok ]
 * Setting system clock to hardware clock [UTC] ...                       [ ok ]
 * Configuring kernel parameters ...                                      [ ok ]
 * Updating environment ...                                               [ ok ]
 * Cleaning /var/lock, /var/run ...                                       [ ok ]
 * Cleaning /tmp directory ...                                            [ ok ]
 * Loading key mappings ...                                               [ ok ]
 * Setting terminal encoding to ASCII ...                                 [ ok ]
 * Setting user font ...                                                  [ ok ]
 * Starting lo
 *   Bringing up lo ...                                                   [ ok ]
 * Initializing random number generator ...                               [ ok ]
INIT: Entering runlevel: 3
 * Starting eth0
 *   Bringing up eth0
 *     10.0.1.202
                                                                          [ ok ]
                                                                          [ ok ]
 *   Adding routes
 *     default gw 10.0.1.1 ...                                            [ ok ]
 * Starting local ...                                                     [ ok ]
 * Mounting network filesystems ...                                       [ ok ]
Kernel panic - not syncing: Kernel Fault

What happens here is that it sticks at "Mounting Network Filesystems". If I press any key on my Serial console here, then it goes off and panics.

The Debian boot CD's did something similar (freezing, then when I press a key it panics). I have tried most of the Gentoo hppa-sources with no avail, also tried the 2.6.15-rc5-pa5 Kernel from cvs.parisc-linux.org (as seen above).

I'm not sure whats wrong here, and rebooting this beast is a very long process (20 minutes each time).

Does anyone have any ideas? I'd really like to run Linux on this mammoth somehow, but I've tried everything I can think of with no sucssess (except the Gentoo Live CD, but that doesn't really do anything other then let me setup the system and compile a kernel).

Cheers!
Keven Tipping

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From: Keven Tipping <bytelogix@shaw.ca>
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Subject: Re: [parisc-linux] Gentoo & PARisc Kernel broken?
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Xref: news.gmane.org gmane.linux.ports.parisc:23267

Greetings to all!

Thanks for your help.

Managed to fix the problem, turns out that /etc/inittab wasn't point to ttyB0. It was pointing to ttyS0 instead.

I'm not sure why that caused the kernel to panic on the first sign of input from the serial console when it hanged (in reality Agetty just hadn't been spawned on the ttyB0 interface), but anyways, the machine seems to be operating properly now as the login pops up right after the last bootup line ("Mounting network filesystems... [OK]").

Thanks!
Keven Tipping

----- Original Message -----
From: Grant Grundler <grundler@parisc-linux.org>
Date: Friday, December 16, 2005 0:51 am
Subject: Re: [parisc-linux] Gentoo & PARisc Kernel broken?

> On Thu, Dec 15, 2005 at 10:58:42PM -0700, Keven Tipping wrote:
> > Greetings to all!
> > 
> > I have a K370 here, all reasonable attempts to boot it have 
> failed miserably.
> > The only thing that boots is the Gentoo 2005 Live CD and I have 
> no clue why :(.
> > 
> > Here is the bootup log.
> ...
> > 12. HP HSC-PCI Cards at 0xf1808000 [10/8] { 4, 0x0, 0x004, 
> 0x0009d }
> > 13. Gecko BOA BC GSC+ Port at 0xf1810000 [10/16] { 7, 0x0, 
> 0x500, 0x0000c }
> > 14. Gecko BOA BC HP-PB Port at 0xf1a3c000 [10/16/60] { 7, 0x0, 
> 0x103, 0x0000c }
> > 15. U2-IOA BC GSC+ Port at 0xf183f000 [10/63] { 7, 0x1, 0x501, 
> 0x0000c }
> > 16. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0xf, 0x580, 
> 0x0000b }
> > 17. Shrike Add-on FW-SCSI at 0xf1008000 [8/8] { 4, 0x1, 0x014, 
> 0x00089 }
> > 18. HP HSC-PCI Cards at 0xf100c000 [8/12] { 4, 0x0, 0x004, 
> 0x0009d }
> 
> My first guess was the "HSC-PCI" cards are the root of some new 
> problem...
> ...
> > Found GeckoBoa at 0xf1804000
> > Found GeckoBoa at 0xf1810000
> > Dino version 3.x (card mode) found at 0xf100c000
> > Dino version 3.x (card mode) found at 0xf1808000
> 
> which are better known as "Card Mode Dino". But I don't think
> that's the case since I never saw evidence of tulip getting loaded
> nor any problem with configuring LAN.
> 
> 
> >  * Calculating module dependencies ...                           
>         [ ok ]
> >  * Using /etc/modules.autoload.d/kernel-2.6 as config:
> >  *   Loading module lasi_82596 ...                               
>         [ ok ]
> 
> Note that this LAN driver worked fine. Firmware programs
> the MMIO address range for this card.
> Any reason why tulip driver didn't get auto-loaded here?
> 
> ...
> >  *   Bringing up eth0
> >  *     10.0.1.202
> 
> Which I expect to be the LASI NIC.
> 
> ...
> >  * Mounting network filesystems ...                              
>         [ ok ]
> > Kernel panic - not syncing: Kernel Fault
> > 
> > What happens here is that it sticks at "Mounting Network 
> Filesystems".> If I press any key on my Serial console here, then 
> it goes off and panics.
> 
> Which suggests it's a problem with the Mux Driver somehow.
> I expect a "login:" prompt to be the next output.
> 
> At one point there were issues with MUX driver keyboard input.
> Maybe those issues have resurfaced in a new way now.
> 
> ...
> > I'm not sure whats wrong here, and rebooting this beast is a 
> very long
> > process (20 minutes each time).
> > 
> > Does anyone have any ideas?
> ...
> > I'd really like to run Linux on this mammoth somehow, but I've tried
> > everything I can think of with no sucssess (except the Gentoo 
> Live CD,
> > but that doesn't really do anything other then let me setup the 
> system> and compile a kernel).
> 
> Start comparing the Gentoo Live CD kernel with the nearest revision
> from debian or otherwise that fails.  MUX driver and serial support
> in particular.
> 
> hth,
> grant
> 

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Subject: [parisc-linux] Bizzare Bash behavior (Bug? 2.6.14.3-pa0 SMP)
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Greetings to all!

I've now got the following quirk on my HPPA box.

This problem is only evident when running SMP, as it appears. The problem doesn't happen under a Uniprocessor kernel.

SMP, works great otherwise. No segfaults or panics related to SMP sofar.

What happens here is that Bash doesn't "return" after a command, ie, my prompt dissapears and never comes back. Doing something as trivial as uname or ls, my computer# Bash prompt never re-appears after the program has finished sending its output (ie, after the directory listing of ls or the output to terminal from uname).

This is using /dev/ttyB0 as the terminal, as specified under /etc/inittab. Agetty spawns and works as expected.

Now, I can SSH into the box just fine after the Bash prompt has dissapeared under the serial console. I can kill Bash from this SSH terminal and Agetty respawns on ttyB0, and I can repeat this process indefinately. SSH works absolutely great, no problems with a SSH connection at all.

This only happens after running "some" command. If I let Bash idle, and come back, it still accepts input as normal, so its not hanging after a given amount of time. Its just after executing programs.

Bash works under SSH, so I can't see what the problem is here or why SMP seems to cause it. Dmesg shows no errors. No kernel panics or anything else. This only occurs on ttyB0.

I've turned off all color for the Bash & LS Commands on by default under Gentoo, same results, so the colored console/serial terminal has nothing to do with it (and besides, it makes no difference as it works with color regardless under a Uniproc kernel).

Any ideas?

Thanks!
Keven Tipping

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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Bizzare Bash behavior (Bug? 2.6.14.3-pa0 SMP)
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Keven Tipping wrote:
> Greetings to all!
> 
> I've now got the following quirk on my HPPA box.
> 
> This problem is only evident when running SMP, as it appears. The problem doesn't happen under a Uniprocessor kernel.
> 
> SMP, works great otherwise. No segfaults or panics related to SMP sofar.
> 
> What happens here is that Bash doesn't "return" after a command, ie, my prompt dissapears and never comes back. Doing something as trivial as uname or ls, my computer# Bash prompt never re-appears after the program has finished sending its output (ie, after the directory listing of ls or the output to terminal from uname).
> 
> This is using /dev/ttyB0 as the terminal, as specified under /etc/inittab. Agetty spawns and works as expected.
> 
> Now, I can SSH into the box just fine after the Bash prompt has dissapeared under the serial console. I can kill Bash from this SSH terminal and Agetty respawns on ttyB0, and I can repeat this process indefinately. SSH works absolutely great, no problems with a SSH connection at all.
> 
> This only happens after running "some" command. If I let Bash idle, and come back, it still accepts input as normal, so its not hanging after a given amount of time. Its just after executing programs.
> 
> Bash works under SSH, so I can't see what the problem is here or why SMP seems to cause it. Dmesg shows no errors. No kernel panics or anything else. This only occurs on ttyB0.
> 
> I've turned off all color for the Bash & LS Commands on by default under Gentoo, same results, so the colored console/serial terminal has nothing to do with it (and besides, it makes no difference as it works with color regardless under a Uniproc kernel).
> 
> Any ideas?
> 
On my d380, it's a debian testing using by default getty:
# more /etc/inittab
[...]
# Example how to put a getty on a serial line (for a terminal)
#
T0:23:respawn:/sbin/getty -L ttyS0 9600 vt102
#T1:23:respawn:/sbin/getty -L ttyS1 9600 vt102
T2:23:respawn:/sbin/getty -L ttyB0 9600 vt102
[...]

supplied by:
# dpkg -S /sbin/getty
util-linux: /sbin/getty
# dpkg -l util-linux
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name                        Version                     Description
+++-===========================-===========================-======================================================================
ii  util-linux                  2.12p-8                     Miscellaneous system utilities

and runing bash-3.0:
# dpkg -l bash
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name                        Version                     Description
+++-===========================-===========================-======================================================================
ii  bash                        3.0-17                      The GNU Bourne Again SHell

and didn't have yet encounter the pb you decribe, though.

Hth,
	Joel

PS: oth, I encounter a weird pb with init (iirc a debian default) supplied by:
# which init
/sbin/init
# dpkg -S /sbin/init
sysvinit: /sbin/init
# dpkg -l sysvinit
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name                        Version                     Description
+++-===========================-===========================-======================================================================
ii  sysvinit                    2.86.ds1-4                  System-V like init

May I ask you to check which init Gentoo use by default?
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Subject: Re: [parisc-linux] Bizzare Bash behavior (Bug? 2.6.14.3-pa0 SMP)
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On Sat, Dec 17, 2005 at 02:16:28AM -0700, Keven Tipping wrote:
>

Fixed already. Upgrade your kernel.

http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2005-November/036299.html
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On Monday 19 December 2005 21:30, Stuart Brady wrote:
> > Ooh!  I'll test this...  Unfortunately, I'm compiling on a 715/100 so
> > bear with me for a moment. :)

BTW, I'm doing all PA-Linux development on my Athlon desktop and cross-compile the parisc-linux kernel (e.g. with ftp://ftp.parisc-linux.org/x86-xcompilers/xc-20040917-hppa32.tgz).
Then the Athlon PC runs a tftp-server and services the built kernel to the parisc servers. The kernel boots, but then has it's root directory on the local hard disk.
It's way faster than native compilation, and as benefit I can boot all my parisc machines with this one single kernel (build once, boot everywhere ;-)).

Helge


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Greetings to all!

I am currently running Kernel version 2.6.15-rc6-pa1.

This problem, however, is evident in 2.6.14.3-pa0, and 2.6.15-rc5-pa5, as well as 2.6.12.2 (Gentoo 2005 LiveCD). Problem remains regardless of SMP or Uniprocessor kernels.

On the K Class (it appears it is limited to these machines?), if nothing is currently running on the ttyB0 Serial Console, if you press any key, the system burps up the following:

Kernel Panic: Kernel Fault
Not Syncing...

What I mean by "nothing running" is if Agetty is NOT running, NOR is Bash. 

This "Gap" where nothing is running, is most evident when you quit Bash (mycomp# exit), and before Agetty has respawned for a login. Inbetween these two events, if any input is sent on the keyboard, the system panics and dies.

I'm not sure what the problem is- maybe related to the MUX driver somehow? Afaik only ttyB0 serial consoles are effected.

Cheers!
Keven Tipping

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On Mon, Dec 19, 2005 at 08:50:18PM -0700, Keven Tipping wrote:
> I am currently running Kernel version 2.6.15-rc6-pa1.
> 
> This problem, however, is evident in 2.6.14.3-pa0, and 2.6.15-rc5-pa5, as well as 2.6.12.2 (Gentoo 2005 LiveCD). Problem remains regardless of SMP or Uniprocessor kernels.
> 
> On the K Class (it appears it is limited to these machines?), if nothing is currently running on the ttyB0 Serial Console, if you press any key, the system burps up the following:
> 
> Kernel Panic: Kernel Fault
> Not Syncing...
> 
> What I mean by "nothing running" is if Agetty is NOT running, NOR is Bash. 

I really think you could have provided the useful bits from a kernel panic
here.  Please see http://www.parisc-linux.org/faq/kernelbug-howto.html

However, I've reproduced it myself.  Here's the relevant bits:

 IAOQ[0]: mux_read+0x4c/0x17c
 IAOQ[1]: mux_read+0x50/0x17c
 RP(r2): mux_poll+0x78/0x88

The instruction faulting is:

  4c:   48 94 02 28     ldw 114(,r4),r20

which corresponds to the load of flip.count:

                if (tty->flip.count >= TTY_FLIPBUF_SIZE)
			continue;

ie the 'tty' variable is NULL at this point.

Alan, you seem to have the tarbaby for ttys at the moment ... any idea
why port->info->tty would be NULL?  The corresponding routine in 8250.c
(receive_chars()) doesn't check for tty being NULL.  So is there
some non-obvious check the MUX driver is missing, or is this a latent
problem in 8250 too?

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(Sorry for this not being threaded).

On Wed, Dec 21, 2005 at 07:39:37AM -0700, Matthew Wilcox wrote:
> On Mon, Dec 19, 2005 at 08:50:18PM -0700, Keven Tipping wrote:
> > I am currently running Kernel version 2.6.15-rc6-pa1.
> > 
> > This problem, however, is evident in 2.6.14.3-pa0, and 2.6.15-rc5-pa5, as well as 2.6.12.2 (Gentoo 2005 LiveCD). Problem remains regardless of SMP or Uniprocessor kernels.
> > 
> > On the K Class (it appears it is limited to these machines?), if nothing is currently running on the ttyB0 Serial Console, if you press any key, the system burps up the following:
> > 
> > Kernel Panic: Kernel Fault
> > Not Syncing...
> > 
> > What I mean by "nothing running" is if Agetty is NOT running, NOR is Bash. 
> 
> I really think you could have provided the useful bits from a kernel panic
> here.  Please see http://www.parisc-linux.org/faq/kernelbug-howto.html
> 
> However, I've reproduced it myself.  Here's the relevant bits:
> 
>  IAOQ[0]: mux_read+0x4c/0x17c
>  IAOQ[1]: mux_read+0x50/0x17c
>  RP(r2): mux_poll+0x78/0x88
> 
> The instruction faulting is:
> 
>   4c:   48 94 02 28     ldw 114(,r4),r20
> 
> which corresponds to the load of flip.count:
> 
>                 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
> 			continue;
> 
> ie the 'tty' variable is NULL at this point.
> 
> Alan, you seem to have the tarbaby for ttys at the moment ... any idea
> why port->info->tty would be NULL?  The corresponding routine in 8250.c
> (receive_chars()) doesn't check for tty being NULL.  So is there
> some non-obvious check the MUX driver is missing, or is this a latent
> problem in 8250 too?

Basically, mux.c is operating with an invalid assumption.  The
assumption that port->info is set to NULL when we don't want to
handle the port is bogus.

Let's look at the code:

static int mux_startup(struct uart_port *port)
{
        mod_timer(&mux_timer, jiffies + MUX_POLL_DELAY);
        return 0;
}

Ok, so mux_startup starts the mux_timer running.

static void mux_shutdown(struct uart_port *port)
{
}

mux_shutdown does nothing at all.

mux_poll is the mux_timer expiry function:

static void mux_poll(unsigned long unused)
{
        int i;
 
        for(i = 0; i < port_cnt; ++i) {
                if(!mux_ports[i].info)
                        continue;
 
                mux_read(&mux_ports[i]);
                mux_write(&mux_ports[i]);
        }
 
        mod_timer(&mux_timer, jiffies + MUX_POLL_DELAY);
}

and it assumes that we can call mux_read and mux_write if port->info
is non-NULL.  port->info is set non-NULL on the first open of the
port.  It will not be set to NULL when the port is closed - that
only happens when the port is removed from the serial subsystem.

So, this means that mux_read() will be called by mux_poll() after
mux_shutdown() has been called, and mux_read() will try to
dereference port->info->tty.

Since serial_core assumes that the shutdown method will shut the
driver up completely before returning, this obviously is bad,
especially when the serial_core NULLs out port->info->tty.

Hence, it's a mux driver bug.  Please fix.

-- 
Russell King
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From: Keven Tipping <bytelogix@shaw.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] HSC Tulip Cards
Date: Sat, 24 Dec 2005 14:33:11 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:23275


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Greetings to all!

I'm just wondering- are Tulip based HSC Cards currently working?

My particular K Class box modprobe's the tulip module fine (2.6.15  
Kernel from PARISC Linux), and it shows up as Eth1 and Eth2, however  
I cannot ping or otherwise "use" the card, DHCP basically just sits  
there and Dmesg reports some stuck interrupt.

The CoreIO LASI Ethernet is working fine, so I've got no quirks about  
not being able to use the Tulip card.  100BaseT would just be nice,  
thats all.

Cheers!

Keven Tipping
     insomnia technology
     "always online"
     email: keven.tipping@insomniatech.ca
     Cell: 403-880-0380



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<HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; "><DIV>Greetings to =
all!</DIV><DIV><BR class=3D"khtml-block-placeholder"></DIV><DIV>I'm just =
wondering- are Tulip based HSC Cards currently working?</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>My particular K Class box =
modprobe's the tulip module fine (2.6.15 Kernel from PARISC Linux), and =
it shows up as Eth1 and Eth2, however I cannot ping or otherwise "use" =
the card, DHCP basically just sits there and Dmesg reports some stuck =
interrupt.</DIV><DIV><BR class=3D"khtml-block-placeholder"></DIV><DIV>The =
CoreIO LASI Ethernet is working fine, so I've got no quirks about not =
being able to use the Tulip card.=A0 100BaseT would just be nice, thats =
all.</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>Cheers!</DIV><BR><DIV> =
<SPAN class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
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border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
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class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
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-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><P style=3D"margin: =
0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Helvetica" size=3D"3" =
style=3D"font: 12.0px Helvetica">Keven Tipping</FONT></P><P =
style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Helvetica" =
size=3D"3" style=3D"font: 12.0px Helvetica"><SPAN =
class=3D"Apple-converted-space"><SPAN class=3D"Apple-converted-tab">=A0=A0=
 =A0insomnia technology</SPAN></SPAN></FONT></P><P style=3D"margin: =
0.0px 0.0px 0.0px 0.0px">=A0=A0 =A0"always online"</P><P style=3D"margin: =
0.0px 0.0px 0.0px 0.0px">=A0=A0=A0 email: <A =
href=3D"mailto:keven.tipping@insomniatech.ca">keven.tipping@insomniatech.c=
a</A></P><P style=3D"margin: 0.0px 0.0px 0.0px 0.0px">=A0=A0 =A0Cell: =
403-880-0380</P><BR =
class=3D"Apple-interchange-newline"></SPAN></SPAN></SPAN> =
</DIV><BR></BODY></HTML>=

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From: Marc Zyngier <maz@misterjones.org>
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Subject: [parisc-linux] [2.6.15-rc6-pa1] 2 crashes with GSC Tulip on J210XC
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Xref: news.gmane.org gmane.linux.ports.parisc:23276

People,

I recently managed to grab a dual tulip GSC card, thinking it would
probably add some geek factor to one of my PA boxes (J210XC, dual
PA7200). As I was trying to escape from food and toys on this Xmas
day, I plugged it in. And indeed, it shows a few things:

Linux version 2.6.15-rc6-pa1 (maz@eruption) (gcc version 4.0.2 (Debian 4.0.2-2)) #3 SMP Sun Dec 25 11:25:57 CET 2005

**** Crash #1:

Bringing up an interface sometimes generates an HPMC. This is not
systematic, but I manage to trigger it quite easily. Looks
dino-related.

eruption:~# ifconfig eth1 192.168.71.2 up
eth1: MII status 786b, Link partner report 41e1.


Backtrace:
 [<10117ba8>] inl+0x4c/0x78
 [<10275488>] ioread32+0x48/0x5c
 [<000474d4>] tulip_check_duplex+0x16c/0x364 [tulip]
 [<00045c04>] tulip_interrupt+0xb74/0x110c [tulip]
 [<1015f8d8>] handle_IRQ_event+0x5c/0xa4
 [<1015fa8c>] __do_IRQ+0x16c/0x220
 [<10284140>] dino_isr+0x90/0x114
 [<1015f8d8>] handle_IRQ_event+0x5c/0xa4
 [<1015fa8c>] __do_IRQ+0x16c/0x220
 [<1010942c>] do_cpu_irq_mask+0x108/0x1b4
 [<1010e068>] intr_return+0x0/0x1c
 [<1010483c>] _spin_unlock_irq+0x0/0x18


High Priority Machine Check (HPMC): Code=1 regs=103fc080 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111101000001110 Not tainted
r00-03  00000000 10104000 102843d0 3737f2a0
r04-07  40000032 10ca2600 000000b0 10ca26e4
r08-11  36d89ea0 800100b0 000041e1 3737f000
r12-15  00052010 10450810 3737f000 0002fef0
r16-19  80010080 000dd024 00000000 f3fc8064
r20-23  f3fc806c 220e020e 102843a8 3737f000
r24-27  020e2202 0000000f 10ca26f0 103f7010
r28-31  0000000f 00000078 35f48c80 10117ba8
sr0-3   00000000 00000000 00000000 0000070b
sr4-7   00000000 00000000 00000000 00000000

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr08-11  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr12-15  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr16-19  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr20-23  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr24-27  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr28-31  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 00000000 00000000 IAOQ: 102843e0 102843e4
 IIR: 0c800184    ISR: 00000000  IOR: f3fc806c
 CPU:        0   CR30: 35f48000 CR31: 10458000
 ORIG_R28: 00000000
 IAOQ[0]: dino_in32+0x38/0x74
 IAOQ[1]: dino_in32+0x3c/0x74
 RP(r2): dino_in32+0x28/0x74
Kernel panic - not syncing: High Priority Machine Check (HPMC)
 


Firmware Version  1.9

Duplex Console IO Dependent Code (IODC) revision 0

------------------------------------------------------------------------------
   (c) Copyright 1990-1996, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------

      0      120  MHz   Active                 Functional            1 M
      1      120  MHz   Idle                   Functional            1 M

  Central Bus Speed (in MHz)  :        120  
  Available Memory (bytes)    :  671088640  
  Good Memory Required (bytes):   26382336  


   Primary boot path:    core.FWSCSI.6.0
   Alternate boot path:  core.FWSCSI.6.0
   Console path:         core.RS232_A.9600.8.none
   Keyboard path:        core.RS232_A.9600.8.none


Processor is booting from first available device.

To discontinue, press any key within 10 seconds.

Boot terminated.


------- Main Menu -------------------------------------------------------------

        Command                         Description
        -------                         -----------

        BOot [PRI|ALT|<path>]           Boot from specified path
        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
        SEArch [DIsplay|IPL] [<path>]   Search for boot devices

        COnfiguration menu              Displays or sets boot values
        INformation menu                Displays hardware information
        SERvice menu                    Displays service commands

        DIsplay                         Redisplay the current menu
        HElp [<menu>|<command>]         Display help for menu or command
        RESET                           Restart the system
-------
Main Menu: Enter command or menu > ser

------- Service Menu ----------------------------------------------------------

        Command                         Description
        -------                         -----------

        MemRead <address> [<len>]       Read memory and I/O locations
        PIM [<proc>] [HPMC|LPMC|TOC]    Display PIM information
        PDT [CLEAR]                     Display or clear the Page Deallocation
                                        Table
        ChassisCodes [<proc>]           Display chassis codes

        BOot [PRI|ALT|<path>]           Boot from specified path
        DIsplay                         Redisplay the current menu
        HElp [<command>]                Display help for specified command
        RESET                           Restart the system
        MAin                            Return to Main Menu
-------
Service Menu: Enter command > pim

PROCESSOR PIM INFORMATION


-----------------  Processor 0 HPMC Information ------------------

Timestamp =    Sun Dec  25 12:44:10 GMT 2005    (20:05:12:25:12:44:10)

HPMC Chassis Codes = 0xcbf0  0x5007  0x5509  0xcbfb  

General Registers 0 - 31
 0 -  3  0x00000000  0x10104000  0x102843d0  0x3737f2a0  
 4 -  7  0x40000032  0x10ca2600  0x000000b0  0x10ca26e4  
 8 - 11  0x36d89ea0  0x800100b0  0x000041e1  0x3737f000  
12 - 15  0x00052010  0x10450810  0x3737f000  0x0002fef0  
16 - 19  0x80010080  0x000dd024  0x00000000  0xf3fc8064  
20 - 23  0xf3fc806c  0x220e020e  0x102843a8  0x3737f000  
24 - 27  0x020e2202  0x0000000f  0x10ca26f0  0x103f7010  
28 - 31  0x0000000f  0x00000078  0x35f48c80  0x10117ba8  

Control Registers 0 - 31
 0 -  3  0x00000000  0x00000000  0x00000000  0x00000000  
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000  
 8 - 11  0x00000e16  0x00000000  0x000000c0  0x0000001f  
12 - 15  0x00000000  0x00000000  0x0010d800  0x00000000  
16 - 19  0xbfd20fc4  0x00000000  0x102843e0  0x0c800184  
20 - 23  0x00000000  0xf3fc806c  0x0004fa0e  0x80000000  
24 - 27  0x00447000  0x25e3e000  0x00113040  0x00080000  
28 - 31  0x02000000  0x01280140  0x35f48000  0x10458000  

Space Registers 0 - 7
 0 -  3  0x00000000  0x00000000  0x00000000  0x0000070b  
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000  


 <Press any key to continue>                                                                  IIA Space                    = 0x00000000
IIA Offset                   = 0x102843e4
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0020000c
Assists Check                = 0x00000000
Assist State                 = 0x00000000
System Responder Address     = 0xfffa0000
System Requestor Address     = 0x00000000
Path Info                    = 0x00000000
Physical Memory              = 0x28000000
Available Memory             = 0x28000000

CPU Diagnose Register 0      = 0x20198300
CPU Status Register 0        = 0x0d008007
CPU Status Register 1        = 0x40000404
Runway Address Cycle [0:31]  = 0x08000000
Runway Address Cycle [32:63] = 0x00000000
Slave Address for trans_id 0 = 0xf3fc8060
Slave Address for trans_id 2 = 0x27220484
Slave Address for trans_id 3 = 0x272204e4
Slave Address for trans_id 4 = 0x0044722d
Slave Address for trans_id 5 = 0x25f48d0e
Slave Address for trans_id 6 = 0x0042194d
Slave Address for trans_id 7 = 0x00c46ecd

 <Press any key to continue>                                                                  
-----------------  Processor 0 LPMC Information ------------------

Check Type                   = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
System Responder Address     = 0x00000000
System Requestor Address     = 0x00000000
Path Info                    = 0x00000000

-----------------  Processor 0 TOC Information -------------------

General Registers 0 - 31
 0 -  3  0x00000000  0xfff0bdc0  0x10132eac  0x104bc810  
 4 -  7  0x00294834  0x10450c18  0x00000001  0x000f4000  
 8 - 11  0x00000000  0x800100b0  0x000041e1  0x3737f000  
12 - 15  0x00052010  0x10450810  0x3737f000  0x0002fef0  
16 - 19  0x103fc080  0x000dd024  0x00000000  0x9c5ea8f5  
20 - 23  0x00294833  0x364f41d4  0x10132c1c  0x00000000  
24 - 27  0x104bcf3c  0x000f4240  0x07270e00  0x103f7010  
28 - 31  0x9c5ef6de  0x0001d4c0  0x103fc4c0  0x10132ec0  

Control Registers 0 - 31
 0 -  3  0x00000000  0x00000000  0x00000000  0x00000000  
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000  
 8 - 11  0x00000e16  0x00000000  0x000000c0  0x00000000  
12 - 15  0x00000000  0x00000000  0x0010d800  0x00000000  
16 - 19  0x9c6069e4  0x00000000  0x10132ed8  0x0a7c041c  
20 - 23  0x00000000  0x00004de9  0x0004f90f  0xb0000000  
24 - 27  0x00447000  0x00447000  0x00113040  0x02000000  
28 - 31  0x00080000  0x01280140  0x35f48000  0x10458000  

Space Registers 0 - 7
 0 -  3  0x00000000  0x00000000  0x00000000  0x0000070b  
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000  

IIA Space                    = 0x00000000
IIA Offset                   = 0x10132edc
CPU State                    = 0x9e000001

 <Press any key to continue>                                                                  
-----------------  Processor 1 HPMC Information ------------------

No valid timestamp

HPMC Chassis Codes = No chassis codes logged

General Registers 0 - 31
 0 -  3  0x00000000  0x00000000  0x00000000  0x00000000  
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000  
 8 - 11  0x00000000  0x00000000  0x00000000  0x00000000  
12 - 15  0x00000000  0x00000000  0x00000000  0x00000000  
16 - 19  0x00000000  0x00000000  0x00000000  0x00000000  
20 - 23  0x00000000  0x00000000  0x00000000  0x00000000  
24 - 27  0x00000000  0x00000000  0x00000000  0x00000000  
28 - 31  0x00000000  0x00000000  0x00000000  0x00000000  

Control Registers 0 - 31
 0 -  3  0x00000000  0x00000000  0x00000000  0x00000000  
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000  
 8 - 11  0x00000000  0x00000000  0x00000000  0x00000000  
12 - 15  0x00000000  0x00000000  0x00000000  0x00000000  
16 - 19  0x00000000  0x00000000  0x00000000  0x00000000  
20 - 23  0x00000000  0x00000000  0x00000000  0x00000000  
24 - 27  0x00000000  0x00000000  0x00000000  0x00000000  
28 - 31  0x00000000  0x00000000  0x00000000  0x00000000  

Space Registers 0 - 7
 0 -  3  0x00000000  0x00000000  0x00000000  0x00000000  
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000  


 <Press any key to continue>                                                                  IIA Space                    = 0x00000000
IIA Offset                   = 0x00000000
Check Type                   = 0x00000000
CPU State                    = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
System Responder Address     = 0x00000000
System Requestor Address     = 0x00000000
Path Info                    = 0x00000000
Physical Memory              = 0x00000000
Available Memory             = 0x00000000

CPU Diagnose Register 0      = 0x00000000
CPU Status Register 0        = 0x00000000
CPU Status Register 1        = 0x00000000
Runway Address Cycle [0:31]  = 0x00000000
Runway Address Cycle [32:63] = 0x00000000
Slave Address for trans_id 0 = 0x00000000
Slave Address for trans_id 2 = 0x00000000
Slave Address for trans_id 3 = 0x00000000
Slave Address for trans_id 4 = 0x00000000
Slave Address for trans_id 5 = 0x00000000
Slave Address for trans_id 6 = 0x00000000
Slave Address for trans_id 7 = 0x00000000

 <Press any key to continue>                                                                  
-----------------  Processor 1 LPMC Information ------------------

Check Type                   = 0x00000000
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x00000000
Assists Check                = 0x00000000
Assist State                 = 0x00000000
System Responder Address     = 0x00000000
System Requestor Address     = 0x00000000
Path Info                    = 0x00000000

-----------------  Processor 1 TOC Information -------------------

General Registers 0 - 31
 0 -  3  0x00000000  0x1044fb80  0x101160bc  0x00000000  
 4 -  7  0x00000000  0x104501ec  0x10cc0100  0x00000001  
 8 - 11  0x10cc0100  0x10450208  0x0004000e  0x10466ba4  
12 - 15  0x000000f2  0x00000001  0x000000fd  0x000000f3  
16 - 19  0x10cc0100  0x00000002  0xf000009c  0x1044fbb0  
20 - 23  0x1044fbb0  0x10451568  0x0000000e  0x00000080  
24 - 27  0x00000004  0x0000000e  0x103a0800  0x103f7010  
28 - 31  0x00000001  0x10cc0100  0x10cc0540  0x1044fbbf  

Control Registers 0 - 31
 0 -  3  0x00000000  0x00000000  0x00000000  0x00000000  
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000  
 8 - 11  0x00000e16  0x00000000  0x000000c0  0x0000001e  
12 - 15  0x00000000  0x00000000  0x0010d800  0x00000000  
16 - 19  0x2d4ba81c  0x00000000  0x10116338  0xcf829ddd  
20 - 23  0x00000000  0xffffffff  0x002cff0e  0x80000000  
24 - 27  0x00447000  0x25e3e000  0x00000000  0x00080000  
28 - 31  0x00000400  0x00040100  0x10cc0000  0x00400400  

Space Registers 0 - 7
 0 -  3  0x00000000  0x0000070b  0x00000000  0x0000070b  
 4 -  7  0x00000000  0x00000000  0x00000000  0x00000000  

IIA Space                    = 0x00000000
IIA Offset                   = 0x10116334
CPU State                    = 0x9e000001

 <Press any key to continue>                                                                  
Memory Error Log Information

Timestamp =    Sun Dec  25 12:44:10 GMT 2005    (20:05:12:25:12:44:10)


   No memory errors logged

I/O Module Error Log Information

Timestamp =    Sun Dec  25 12:44:12 GMT 2005    (20:05:12:25:12:44:12)

Bus    HPA       Module Type      Path  Slt Md Sev  Estat Requestor  Responder
--- ---------- ---------------- -------- -- -- ---- ----- ---------- ----------
 0  0xfff8a000 I/O Adapter      10        2  2  he   0x3e 0xf3fc8000 0xfbfffffc
 2  0xf3fff000 Bus Converter    10/63    15  3  se   0x07 0xfffa0800 0xf3fc806c
 2  0xf3fc8000 A DMA I/O        10/8      2  0  fe   0x03 0x00000000 0x00000000


Service Menu: Enter command > 

**** Crash #2

Bringing an interface down sometimes triggers a
BUG(). ccio_unmap_single() is passed a NULL dev pointer... May be
tulip related, though my B2000 doesn't exhibit this problem.

eruption:~# ifconfig eth1 down
kernel BUG at drivers/parisc/ccio-dma.c:454!
Backtrace:
 [<10282b1c>] ccio_unmap_single+0x160/0x2f0
 [<00045bb8>] tulip_interrupt+0xb28/0x110c [tulip]
 [<1015f8d8>] handle_IRQ_event+0x5c/0xa4
 [<1015fa8c>] __do_IRQ+0x16c/0x220
 [<10284140>] dino_isr+0x90/0x114
 [<1015f8d8>] handle_IRQ_event+0x5c/0xa4
 [<1015fa8c>] __do_IRQ+0x16c/0x220
 [<1010942c>] do_cpu_irq_mask+0x108/0x1b4
 [<1010e068>] intr_return+0x0/0x1c
 [<1018a668>] nameidata_to_filp+0x44/0x58
 [<10115288>] cpu_idle+0x78/0x90
 [<101a5cf8>] open_namei+0x94/0x980
 [<1018a6c8>] filp_open+0x4c/0x5c
 [<10115278>] cpu_idle+0x68/0x90
 [<1046149c>] start_kernel+0x278/0x2bc

Kernel panic - not syncing: BUG!


I'll try to put the card in another box (B180 or C200) tomorrow to see
if these problems are J-specific or not.

Let me know if I can help in any way.

Regards,

	M.

PS: Happy Xmas to you all.
-- 
And if you don't know where you're going, any road will take you there...
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From - Thu Nov 08 21:34:11 2018
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Subject: [parisc-linux] strtold
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Xref: news.gmane.org gmane.linux.ports.parisc:23277

With libc6 2.3.5-8:

#include <stdlib.h>
int
main ()
{
  printf ("%Lf\n", strtold ("1", NULL));
    return 0;
}

dave@gsyprf11:~/gcc_test$ gcc -o ld1 ld1.c
dave@gsyprf11:~/gcc_test$ ./ld1
0.000000

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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X no longer starts on my c3k using unstable.  The problem seems
to be:

(EE) FBDEV(0): FBIOPAN_DISPLAY: Invalid argument

XF86Config-4 hasn't changed for at least a year.  Any ideas?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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Subject: Re: [parisc-linux] nscd: error while loading shared libraries:
	unexpected reloc type 0x42
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On Monday 26 December 2005 16:47, John David Anglin wrote:
> I'm seeing the following error in the boot log:
>
> Fri Nov 25 04:59:01 2005: Starting Name Service Cache Daemon:
> nscd/usr/sbin/nscd
>
> : error while loading shared libraries: unexpected reloc type 0x42
>
> Fri Nov 25 04:59:02 2005: .
>
> I think this is a R_PARISC_PLABEL21L reloc.  GCC doesn't generate these.
> So they must come from an asm or assembly code.  I think libc used this
> reloc for loading the address of the function descriptor of main.

this is because Redhat forces all network daemons to be built at PIEs ... thus 
glibc will build nscd as a PIE by default ... and since PIE doesnt work on 
parisc just yet, you see fun errors like the above

here's the hack patch i wrote Gentoo/hppa:
http://viewcvs.gentoo.org/sys-libs/glibc/files/2.3.4/hppa-no-pie.patch

good news though, when i mentioned this before:
http://lists.parisc-linux.org/pipermail/parisc-linux/2005-July/026865.html
people said it's in the works to be fixed :)
-mike
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Subject: [parisc-linux] nscd: error while loading shared libraries:
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I'm seeing the following error in the boot log:

Fri Nov 25 04:59:01 2005: Starting Name Service Cache Daemon: nscd/usr/sbin/nscd
: error while loading shared libraries: unexpected reloc type 0x42
Fri Nov 25 04:59:02 2005: .

I think this is a R_PARISC_PLABEL21L reloc.  GCC doesn't generate these.
So they must come from an asm or assembly code.  I think libc used this
reloc for loading the address of the function descriptor of main.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: nscd: error while loading shared libraries:
	unexpected reloc type 0x42
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> So they must come from an asm or assembly code.  I think libc used this
> reloc for loading the address of the function descriptor of main.

objdump -R nscd
...
00005970 R_PARISC_PLABEL21L  main
00005974 R_PARISC_PLABEL14R  main
00005980 R_PARISC_PLABEL21L  __libc_csu_init
00005984 R_PARISC_PLABEL14R  __libc_csu_init
00005988 R_PARISC_PLABEL21L  __libc_csu_fini
0000598c R_PARISC_PLABEL14R  __libc_csu_fini

If I recall correctly, there was a dynamic loader fix to handle these
relocations.  However, it doesn't seem to be in libc6 2.3.5-8.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hi Dave,

On Monday 26 December 2005 22:34, John David Anglin wrote:
> X no longer starts on my c3k using unstable.  The problem seems
> to be:
> 
> (EE) FBDEV(0): FBIOPAN_DISPLAY: Invalid argument
> 
> XF86Config-4 hasn't changed for at least a year.  Any ideas?

I assume your screen resolution changed. 
Maybe new monitor/setup or different graphic card is detected first ?
Try fbset to get the current screen resolution.

Helge
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Hi Helge,

> On Monday 26 December 2005 22:34, John David Anglin wrote:
> > X no longer starts on my c3k using unstable.  The problem seems
> > to be:
> > 
> > (EE) FBDEV(0): FBIOPAN_DISPLAY: Invalid argument
> > 
> > XF86Config-4 hasn't changed for at least a year.  Any ideas?
> 
> I assume your screen resolution changed. 

No.  I've had the following entries in XF86Config-4 since Sep 2003:

Section "Device"
        Identifier      "HP Visualize-EG"
	Driver          "fbdev"
	Option          "UseFBDev"              "true"
EndSection

Section "Monitor"
	Identifier      "NEC LCD1980SX"
	HorizSync       30-107
	VertRefresh     50-85
	Option          "DPMS"
EndSection

Section "Screen"
	Identifier      "Default Screen"
	Device          "HP Visualize-EG"
	Monitor         "NEC LCD1980SX"
	DefaultDepth    8
	SubSection "Display"
		Depth           8
		Modes           "1280x1024"
	EndSubSection
EndSection

> Maybe new monitor/setup or different graphic card is detected first ?

Possibly, the machine has two graphics cards.  However, the presence of
the A1262A never caused a problem before:

STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f6000000 (64 kB), fb at f8000000 (32 MB)
    id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
    graphics card name: PCI_GRAFFITIX1280
STI PCI graphic ROM found at f7000000 (2048 kB), fb at fa000000 (32 MB)
    id 35acda30-9a02587, conforms to spec rev. 8.0d
    graphics card name: A1262A
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIX1280, id: 2d08c0a7, mmio: 0xf8100000
stifb: 'A1262A' (id: 0x35acda30) not supported.

> Try fbset to get the current screen resolution.

mode "1280x1024"
    geometry 1280 1024 1280 1024 8
    timings 0 0 0 0 0 0 0
    rgba 8/0,8/0,8/0,0/0
endmode

>From the above, it looks like the timings aren't beeing set.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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On Tuesday 27 December 2005 13:15, John David Anglin wrote:
> > glibc will build nscd as a PIE by default ... and since PIE doesnt work
> > on parisc just yet, you see fun errors like the above
> >
> > here's the hack patch i wrote Gentoo/hppa:
> > http://viewcvs.gentoo.org/sys-libs/glibc/files/2.3.4/hppa-no-pie.patch
>
> As far as GCC goes on the PA, -fpie should be equivalent to -fpic and
> this should be ok for executables.  The main issue is the linker -pie
> support, and the corresponding libc and kernel (?) support needed for PIE.

i dont think you need kernel support for PIE ... unless i missed something, 
the two parts i thought needed to be done to make PIE work on hppa/linux was 
a proper Scrt1.o from glibc and to make sure no more relocations were 
generated by the linker that the dynamic loader cannot handle ... and the 
second part could be slightly ignored if glibc was patched up just right ...

> A small patch could be done to disable -fpie on the PA in GCC.  PIE is
> definitely not supported under hpux, so this seems like a good idea.  I
> could also kill the linker flag.

PIE support may be novelty to some, but i (and Gentoo) certainly wouldnt mind 
having proper support for it :)

> However, it doesn't look like this will fix all the nscd/Makefile issues.

right ... when i last looked, glibc takes the approach that it will either 
generate PIE executables or it wont generate them at all
-mike
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kfitzner@excelcia.org (Kurt Fitzner) writes:

> Does anyone know who the maintainer of the Debian parisc boot CD is?

It's a group effort.  

When the debian-boot team gets annoyed at hppa progress they often poke 
me, and then I prod people to get things done when I don't know how to 
just do them myself quickly.

Why?

Bdale
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Xref: news.gmane.org gmane.linux.ports.parisc:23286

> this is because Redhat forces all network daemons to be built at PIEs ... thus 
Sometimes I think Redhat enjoys making life difficult for the systems
they don't support.

> glibc will build nscd as a PIE by default ... and since PIE doesnt work on 
> parisc just yet, you see fun errors like the above
> 
> here's the hack patch i wrote Gentoo/hppa:
> http://viewcvs.gentoo.org/sys-libs/glibc/files/2.3.4/hppa-no-pie.patch

As far as GCC goes on the PA, -fpie should be equivalent to -fpic and
this should be ok for executables.  The main issue is the linker -pie
support, and the corresponding libc and kernel (?) support needed for PIE.

A small patch could be done to disable -fpie on the PA in GCC.  PIE is
definitely not supported under hpux, so this seems like a good idea.  I
could also kill the linker flag.  However, it doesn't look like this
will fix all the nscd/Makefile issues.

> good news though, when i mentioned this before:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2005-July/026865.html
> people said it's in the works to be fixed :)

It seems this issue has fallen through the cracks.  I know Carlos has
been busy finishing up his thesis.  The relocation problem is a separate
issue from PIE support as it could arise independently.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:23287

Hi Dave,

On Tuesday 27 December 2005 15:37, John David Anglin wrote:
> > On Monday 26 December 2005 22:34, John David Anglin wrote:
> > > X no longer starts on my c3k using unstable.  The problem seems
> > > to be:
> > > 
> > > (EE) FBDEV(0): FBIOPAN_DISPLAY: Invalid argument

This message has always been here.

> > > XF86Config-4 hasn't changed for at least a year.  Any ideas?
> > 
> > I assume your screen resolution changed. 
> 
> No.  I've had the following entries in XF86Config-4 since Sep 2003:
> 
> Section "Device"
>         Identifier      "HP Visualize-EG"
> 	Driver          "fbdev"
> 	Option          "UseFBDev"              "true"
> EndSection
> 
> Section "Monitor"
> 	Identifier      "NEC LCD1980SX"
> 	HorizSync       30-107
> 	VertRefresh     50-85
> 	Option          "DPMS"
> EndSection
> 
> Section "Screen"
> 	Identifier      "Default Screen"
> 	Device          "HP Visualize-EG"
> 	Monitor         "NEC LCD1980SX"
> 	DefaultDepth    8
> 	SubSection "Display"
> 		Depth           8
> 		Modes           "1280x1024"
> 	EndSubSection
> EndSection

Ok.

> > Maybe new monitor/setup or different graphic card is detected first ?
> 
> Possibly, the machine has two graphics cards.  However, the presence of
> the A1262A never caused a problem before:
> 
> STI GSC/PCI core graphics driver Version 0.9a
> STI PCI graphic ROM found at f6000000 (64 kB), fb at f8000000 (32 MB)
>     id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
>     graphics card name: PCI_GRAFFITIX1280
> STI PCI graphic ROM found at f7000000 (2048 kB), fb at fa000000 (32 MB)
>     id 35acda30-9a02587, conforms to spec rev. 8.0d
>     graphics card name: A1262A
> sticon: Initializing STI text console.
> Console: switching to colour STI console 160x64
> Console: switching to colour frame buffer device 160x64
> fb0: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIX1280, id: 2d08c0a7, mmio: 0xf8100000
> stifb: 'A1262A' (id: 0x35acda30) not supported.


yep. neither..


> > Try fbset to get the current screen resolution.
> 
> mode "1280x1024"
>     geometry 1280 1024 1280 1024 8
>     timings 0 0 0 0 0 0 0
>     rgba 8/0,8/0,8/0,0/0
> endmode
> 
> From the above, it looks like the timings aren't beeing set.

They are always 0 for fb-devices.

I tried myself with current kernel.

- 32bit kernel on c3k works for me. Can you try again with current kernel ?

- 64bit kernel on my c3k crashes, but this doesn't seem (with strace) related to stifb. Maybe this is due to some mmap() problems ?

Sorry, no better idea...

Helge
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Subject: Re: [parisc-linux] X startup failure / PS/2 mouse failure
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Xref: news.gmane.org gmane.linux.ports.parisc:23288

> Hi Dave,
> 
> On Tuesday 27 December 2005 15:37, John David Anglin wrote:
> > > On Monday 26 December 2005 22:34, John David Anglin wrote:
> > > > X no longer starts on my c3k using unstable.  The problem seems
> > > > to be:
> > > > 
> > > > (EE) FBDEV(0): FBIOPAN_DISPLAY: Invalid argument
> 
> This message has always been here.

Hello,

I have the same error message on a B180L, although X is starting (gdm).
BUT the 3 buttons PS/2 mouse don't work at all.
I have the following mouse configuration in /etc/X11/XF86Config-4 :

        Section "InputDevice"
		Identifier      "Configured Mouse"
		Driver          "mouse"
		Option          "CorePointer"
		Option          "Device"                "/dev/psaux"
		Option          "Protocol"              "PS/2"
		Option          "Emulate3Buttons"       "false"
	EndSection
										What can be wrong ?
										Is there some other configuration to do for the mouse in any other
config file ?

Thanks in advance for all hints,

Jean-Pierre
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Xref: news.gmane.org gmane.linux.ports.parisc:23289

Hello all,

For those who could have some interest,
here are just some notes I took for remind of an implementation of a linux-vserver on a parisc-linux boxe(s).
(only tested on 32bit up kernel on a c110 and d380 models, though).

This particular execise was to re-use existing chrooted disk(s) already debbootstrap, fully populated and customized (i.e. I didn't
want to loose that job ;-) ).

(take care to use it at your own risks ;-) )

0/ References
0.1/ the reference used are:
<http://linux-vserver.org/Step-By-Step+Guide+2.6>

0.2/ more details learning:
<http://www.morethan.org/step_step.html>

1/ Kernel sources:
1.1/ parisc-linux sources:
<http://cvs.parisc-linux.org/download/linux-2.6/linux-2.6.14-pa0.tar.bz2>
(to be sure I also grab some subsequent small patches but not taged before next merge :-( )

1.2/ vanilla patch 2.6.14.4:
<http://www.kernel.org/pub/linux/kernel/v2.6/patch-2.6.14.4.bz2>

1.3/ developement linux-vserver patches:
as announced <http://archives.linux-vserver.org/200512/0244.html>

<http://www.13thfloor.at/vserver/d_rel26/v2.1.0/patch-2.6.14.4-vs2.1.0.diff>
+ a fix
<http://www.13thfloor.at/~doener/vserver/patches/diff-2.6.14.3-vs2.1.0-rc10-rc10.1.diff>

This would results in 2 rejected hunk:
* this very small ack should fix a rejected one:
(due to the diff between parisc tree and vanilla one)
--- arch/parisc/kernel/syscall_table.S.orig     2005-09-24 10:40:28.000000000 +0200
+++ arch/parisc/kernel/syscall_table.S  2005-12-22 12:26:18.000000000 +0100
@@ -368,7 +368,7 @@
         ENTRY_COMP(mbind)               /* 260 */
         ENTRY_COMP(get_mempolicy)
         ENTRY_COMP(set_mempolicy)
-       ENTRY_SAME(ni_syscall)  /* 263: reserved for vserver */
+       ENTRY_DIFF(vserver)
         ENTRY_SAME(add_key)
         ENTRY_SAME(request_key)         /* 265 */
         ENTRY_SAME(keyctl)
====<>====

* the second should be get rid (already applied in p-l tree ;-) )

1.4/ build and install as usual the kernel and its modules:
# make oldconfig ; make vmlinux ; make modules ; make install

1.5/ install this kernel and reboot the system with this one.

2/ verser tools: utils-verser

2.1/ grab latest src:
<http://www.13thfloor.at/vserver/d_rel26/v2.1.0/util-vserver-0.30.209.tar.bz2>

2.2/ build tools tip:

2.2.a/ as for hppa the vserver syscall nr is 263 (and not the default 273) either use:
CPPFLAGS="-D__NR_vserver=263" set in the environment
(as recommended <http://archives.linux-vserver.org/200512/0094.html> but I didn't test it, sorry)

or apply this small hunk:
diff -NaurX /usr/src/dontdiff util-vserver-0.30.209.Orig/lib/syscall-fallback.h
util-vserver-0.30.209.build/lib/syscall-fallback.h--- util-vserver-0.30.209.Orig/lib/syscall-fallback.h   2005-10-28
18:09:27.000000000 +0200
+++ util-vserver-0.30.209.build/lib/syscall-fallback.h  2005-12-11 12:33:45.000000000 +0100
@@ -45,7 +45,7 @@
  #elif  defined(__mips__) && (_MIPS_SIM == _MIPS_SIM_NABI32)
  #define __NR_vserver   236
  #elif  defined(__hppa__)
-#define __NR_vserver   *
+#define __NR_vserver   263
  #elif  defined(__powerpc__)
  #define __NR_vserver   257
  #elif  defined(__s390__)
====<>====

2.2.b/ configure tools as per debian pkg spec:
CFLAGS="-Wall -g  -O2" ./configure \
         --build hppa-linux-gnu \
         --prefix=/usr --enable-release \
         --mandir=/usr/share/man \
         --infodir=/usr/share/info \
         --sysconfdir=/etc \
         --disable-dietlibc \
         --localstatedir=/var \
         --with-vrootdir=/var/lib/vservers

(this get rid of dietlibc which is afaik not available for hppa, though)

2.3/ install tools:
# make
# make install
and as per 'make install' advise:
# make install-distribution

# mkdir /var/lock/subsys


2.4/ install util vserver startup script

# update-rc.d vprocunhide defaults 25 15
# update-rc.d vservers-legacy defaults 90 02
# update-rc.d rebootmgr defaults 30 10
# update-rc.d vservers-default defaults 90 02

and set barrier (assuming it's a new install)
# setattr --barrier /var/lib/vservers

3/ test:
follow here advise of test in above 0/ reference.

4/ Create the vserver skeleton:
# vserver --verbose DebSid build  -m skeleton --hostname hplvsrvr --netdev eth0 --interface 192.168.248.145/24

(see 0.2/ for details)

5/ Change the existing chroot disk utilization into a vserver:

5.1/ the original mount points were obviously:
#/dev/sdl3      /chroot/boot            ext3    defaults,errors=continue        0       2
#/dev/sdl6      /chroot/var             ext3    defaults,errors=continue        0       2
#/dev/sdl7      /chroot/tmp             ext3    defaults,errors=continue        0       2
#/dev/sdl8      /chroot/home            ext3    defaults,errors=continue        0       2
#/dev/sdl9      /chroot/Develop         ext3    defaults,errors=continue        0       2

which had to be unmounted (as well as eventual proc and devpts)

5.2/ Backup the related vserver vdirbase

# cd /var/lib/vservers/
# mv DebSid DebSid.Orig
# mkdir DebSid

5.3/ change the mount point of the host fstab:

# New mount point for vserver
/dev/sdc5       /var/lib/vservers/DebSid                ext3    defaults,errors=continue        0       0
/dev/sdc3       /var/lib/vservers/DebSid/boot           ext3    defaults,errors=continue        0       0
/dev/sdc6       /var/lib/vservers/DebSid/var            ext3    defaults,errors=continue        0       0
/dev/sdc7       /var/lib/vservers/DebSid/tmp            ext3    defaults,errors=continue        0       0
/dev/sdc8       /var/lib/vservers/DebSid/home           ext3    defaults,errors=continue        0       0
/dev/sdc9       /var/lib/vservers/DebSid/Develop        ext3    defaults,errors=continue        0       0

# mount -a

5.4/ Backup guest dev and sysvinit scripts.

Note: this step is only because I would like to save the oportunity to boot with the disk

5.4.1/ pseudo devices

#  cd /var/lib/vservers/DebSid
# mv dev dev.Orig

btw install the one that skeleton install ;-)

# cd ../DebSid.Orig
# find dev | cpio -mpduv ../DebSid

(already prepare env for pre-start/post-stop stuff)
# cd -
# mv dev dev.VPS ; ln -s dev.VPS dev

5.4.2/ sysvinit scripts

# cd /var/lib/vservers/DebSid/etc
# mkdir init.d.Orig rc0.d.Orig rc1.d.Orig rc2.d.Orig rc3.d.Orig rc4.d.Orig rc5.d.Orig rc6.d.Orig rcS.d.Orig default.Orig
# cd init.d ; find . | cpio -mpduv ../init.d.Orig
# cd ../rc0.d ; find . | cpio -mpduv ../rc0.d.Orig
# cd ../rc1.d ; find . | cpio -mpduv ../rc1.d.Orig
# cd ../rc2.d ; find . | cpio -mpduv ../rc2.d.Orig
# cd ../rc3.d ; find . | cpio -mpduv ../rc3.d.Orig
# cd ../rc4.d ; find . | cpio -mpduv ../rc4.d.Orig
# cd ../rc5.d ; find . | cpio -mpduv ../rc5.d.Orig
# cd ../rc6.d ; find . | cpio -mpduv ../rc6.d.Orig
# cd ../rcS.d ; find . | cpio -mpduv ../rcS.d.Orig
# cd ../default ; find . | cpio -mpduv ../default.Orig

5.4.3/ remove some startup script
(see advises 0.1/)

# cd ../rc0.d
# rm K20makedev K25hwclock.sh S30urandom S31umountnfs.sh  S35networking S36ifupdown S40umountfs S90halt K89klogd
# cd ../rc6.d
# rm K20makedev K25hwclock.sh S30urandom S31umountnfs.sh  S35networking S36ifupdown S40umountfs S90reboot K89klogd
# cd ../rcS.d
# rm S05keymap.sh S48console-screen.sh S50hwclock.sh S40networking  S45mountnfs.sh S10checkroot.sh S02mountvirtfs
# rm S30procps.sh S35mountall.sh S36mountvirtfs S39ifupdown S30checkfs.sh S18ifupdown-clean S18hwclockfirst.sh
# cd ../rc2.d
# rm S20makedev S11klogd

5.4.4 prepare pre-start/post-stop

# cd /var/lib/vservers/DebSid/etc/

# mv default default.VPS ; ln -s default.VPS default
# mv init.d init.d.VPS; ln -s init.d.VPS init.d
# mv rc0.d rc0.d.VPS ; ln -s rc0.d.VPS rc0.d
# mv rc1.d rc1.d.VPS ; ln -s rc1.d.VPS rc1.d
# mv rc2.d rc2.d.VPS ; ln -s rc2.d.VPS rc2.d
# mv rc3.d rc3.d.VPS ; ln -s rc3.d.VPS rc3.d
# mv rc4.d rc4.d.VPS ; ln -s rc4.d.VPS rc4.d
# mv rc5.d rc5.d.VPS ; ln -s rc5.d.VPS rc5.d
# mv rc6.d rc6.d.VPS ; ln -s rc6.d.VPS rc6.d
# mv rcS.d rcS.d.VPS ; ln -s rcS.d.VPS rcS.d

5.4.5 install pre-start/post-stop scripts

# more /etc/vservers/DebSid/scripts/prepre-start
#!/bin/bash
#set -x

echo "$0 fixes sysvinit script's dir."

LNS="/bin/ln -s"
RMF="/bin/rm -f"
VPS_CFG="/var/lib/vservers"
VSP_MP="$VPS_CFG/DebSid"
VSP_Etc="$VSP_MP/etc"
VPS_SUFIX="VPS"
ORIG_SUFIX="Orig"
SUFIX="$ORIG_SUFIX"
InitDir="default init.d rc0.d rc1.d rc2.d rc3.d rc4.d rc5.d rc6.d rcS.d"

LinkDir () {

     LN_NAME="$1"
     LN_SRC="$LN_NAME.$SUFIX"

     if [ -d "$LN_SRC" ]
     then
         if [ -h "$LN_NAME" ]
         then
             $RMF "$LN_NAME"
             RC=$?
             if [ $RC -ne 0 ]
             then
                 echo "Failed to rm link $LN_NAME: please check !!!"
                 exit 1
             else
                 $LNS "$LN_SRC" "$LN_NAME"
                 RC=$?
                 if [ $RC -ne 0 ]
                 then
                     echo "Link $LN_NAME -> $LN_SRC failed."
                     exit 1
                 else
                     echo "Link $LN_NAME -> $LN_SRC is created."
                 fi
             fi
         else
             echo "$LN_NAME is not a link: please check !!!"
             exit 1
         fi
     else
         echo "$LN_SRC doesn't exist: please check !!!"
         exit 1
     fi
}

# dev
cd "$VSP_MP"
LinkDir dev

cd "$VSP_Etc"
for dir in $InitDir
do
     LinkDir "$dir"
done

exit 0
====<>====

# diff -Nau /etc/vservers/DebSid/scripts/prepre-start /etc/vservers/DebSid/scripts/postpost-stop
--- /etc/vservers/DebSid/scripts/prepre-start   2005-12-26 13:07:57.000000000 +0100
+++ /etc/vservers/DebSid/scripts/postpost-stop  2005-12-26 13:08:26.000000000 +0100
@@ -10,7 +10,7 @@
  VSP_Etc="$VSP_MP/etc"
  VPS_SUFIX="VPS"
  ORIG_SUFIX="Orig"
-SUFIX="$VPS_SUFIX"
+SUFIX="$ORIG_SUFIX"
  InitDir="default init.d rc0.d rc1.d rc2.d rc3.d rc4.d rc5.d rc6.d rcS.d"

  LinkDir () {
====<>====

# chmod u+x /etc/vservers/DebSid/scripts/prepre-start
# chmod u+x /etc/vservers/DebSid/scripts/postpost-stop


5.4.6/ some more customization (mtab and fstab)

Here are what look like mentioned files:

# more /etc/vservers/DebSid/apps/init/mtab
/dev/sdl5	/		ext3 rw,errors=continue 0 0
/dev/sdl3	/boot		ext3 rw,errors=continue 0 0
/dev/sdl6	/var		ext3 rw,errors=continue 0 0
/dev/sdl7	/tmp		ext3 rw,errors=continue 0 0
/dev/sdl8	/home		ext3 rw,errors=continue 0 0
/dev/sdl9	/Develop	ext3 rw,errors=continue 0 0

# more /etc/vservers/DebSid/fstab
none    /proc           proc    defaults                0 0
#none   /tmp            tmpfs   size=16m,mode=1777      0 0
none    /dev/pts        devpts  gid=5,mode=620          0 0

6/ Customize sshd for host and guest

For the host change the listen address:
(see /etc/ssh/sshd_config)
ListenAddress 192.168.248.45

Teh same for the guest:
(see /var/lib/vservers/DebSid/etc/ssh/sshd_config
ListenAddress 192.168.248.145


7/ first guest (aka DebSid here) start

7.1/ Start
It's now time to check if everything goes right:

# vserver DebSid start
  # vserver DebSid start
/etc/vservers/DebSid/scripts/prepre-start fixes sysvinit script's dir.
Link dev -> dev.VPS is created.
Link default -> default.VPS is created.
Link init.d -> init.d.VPS is created.
Link rc0.d -> rc0.d.VPS is created.
Link rc1.d -> rc1.d.VPS is created.
Link rc2.d -> rc2.d.VPS is created.
Link rc3.d -> rc3.d.VPS is created.
Link rc4.d -> rc4.d.VPS is created.
Link rc5.d -> rc5.d.VPS is created.
Link rc6.d -> rc6.d.VPS is created.
Link rcS.d -> rcS.d.VPS is created.
Starting system message bus: dbus-1.
Starting MTA: exim4.
Starting printer spooler: lpd.
Starting network benchmark server: netserver.
Starting OpenBSD Secure Shell server: sshd.
sadc not enabled in /etc/default/sysstat, not starting.
Setting up X font server socket directory /tmp/.font-unix...done.
Starting X font server: xfs.
Starting internet superserver: xinetd.
Starting file alteration monitor: FAM.
Starting NTP server: ntpd.
Starting anac(h)ronistic cron: anacron.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.
Starting GNOME Display Manager: gdm.


          _sudZUZ#Z#XZo=_         DDDD   EEEEEE BBBB   IIIIII  AAAA   NN   NN
       _jmZZ2!!~---~!!X##wa       DD DD  EE     BB BB    II   AA  AA  NNN  NN
    .<wdP~~            -!YZL,     DD  DD EEEEE  BBBBB    II   AAAAAA  NNNN NN
   .mX2'       _%aaa__     XZ[.   DD DD  EE     BB  BB   II   AA  AA  NN NNNN
   oZ[      _jdXY!~?S#wa   ]Xb;   DDDD   EEEEEE BBBBB  IIIIII AA  AA  NN   NN
  _#e'     .]X2(     ~Xw|  )XXc
.2Z`      ]X[.       xY|  ]oZ(   Linux Version 2.6.14.4-vs2.1.0-pa0-c110
.2#;      )3k;     _s!~   jXf`   Compiled #3 Fri Dec 23 18:31:07 CET 2005
  1Z>      -]Xb/    ~    __#2(    One 120MHz PA-RISC Raven 120 T' Processor, 512M RAM
  -Zo;       +!4ZwaaaauZZXY'      119.60 Bogomips Total
   *#[,        ~-?!!!!!!-~        hplvsrvr
    XUb;.
     )YXL,,
       +3#bc,
         -)SSL,,
            ~~~~~
Updating the operating system logo: linuxlogo.

Cool ;-)

7.2/ Some check

# vserver-stat
CTX   PROC    VSZ    RSS  userTIME   sysTIME    UPTIME NAME
0       69 175.4M  58.5M  24m56s43  22m25s10  10h52m53 root server
49156    8  45.2M  10.9M   0m01s60   0m02s64   0m23s34 DebSid

More ... enter the guest

# vserver DebSid enter
root@hplvsrvr:/#

root@hplvsrvr:/# hostname
hplvsrvr

(should be the hostname given while the verser build and which could be different of the original chroot/boot disk:
root@hplvsrvr:/# cat /etc/hostname
hpalin
  ;-) )

root@hplvsrvr:/# df -k
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sdc5              1692220   1022512    583748  64% /
/dev/sdc3               123767      8728    108649   8% /boot
/dev/sdc6               247511    113405    121327  49% /var
/dev/sdc7               123735      4155    113191   4% /tmp
/dev/sdc8               123735      4163    113183   4% /home
/dev/sdc9              1513656   1343508    154772  90% /Develop

root@hplvsrvr:/# top -n1 -b
top - 20:54:42 up 2 min,  0 users,  load average: 0.13, 0.14, 0.06
Tasks:  10 total,   1 running,   9 sleeping,   0 stopped,   0 zombie
Cpu(s):  3.0% us,  3.5% sy,  1.0% ni, 90.8% id,  1.7% wa,  0.0% hi,  0.1% si
Mem:    512248k total,   488728k used,    23520k free,    50052k buffers
Swap:   131832k total,        4k used,   131828k free,   345232k cached

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
16939 root      15   0  2952 1160  904 R  1.8  0.2   0:00.11 top
     1 root      16   0  2292  708  572 S  0.0  0.1   0:31.77 init
16638 messageb  21   0  2780  808  624 S  0.0  0.2   0:00.04 dbus-daemon-1
16763 root      16   0  8340 1096  620 S  0.0  0.2   0:00.01 exim4
16787 root      18   0  5936 3336  712 S  0.0  0.7   0:02.60 xfs
16799 root      19   0  4516 1388 1112 S  0.0  0.3   0:00.17 xinetd
16850 daemon    21   0  2416  476  312 S  0.0  0.1   0:00.01 atd
16853 root      16   0  2588  952  736 S  0.0  0.2   0:00.10 cron
16868 root      15   0 13488 1932 1184 S  0.0  0.4   0:00.06 gdm
16921 root      15   0  3520 1836 1396 S  0.0  0.4   0:01.26 bash

(Excepted init here are the only process launch and known by thw guest, not seen by the host's top)

(next would require iproute dpkg installed: just usual apt-get install in the guest server made the drill)

root@hplvsrvr:/# ip addr show
2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
     link/ether 00:60:b0:07:1e:ea brd ff:ff:ff:ff:ff:ff
     inet 192.168.248.145/24 brd 192.168.248.255 scope global secondary eth0


 From a remote sever you would also be able to login the guest
$ ssh 192.168.248.145
The authenticity of host '192.168.248.145 (192.168.248.145)' can't be established.
RSA key fingerprint is 10:b7:90:32:fa:46:4e:48:be:bd:26:61:9c:e8:b0:a0.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.248.145' (RSA) to the list of known hosts.
Password:


The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
jso@hplvsrvr:~$ top -n1 -b
top - 21:02:57 up 11 min,  1 user,  load average: 0.02, 0.04, 0.03
Tasks:  13 total,   1 running,  12 sleeping,   0 stopped,   0 zombie
Cpu(s):  3.0% us,  3.4% sy,  0.9% ni, 90.9% id,  1.6% wa,  0.0% hi,  0.1% si
Mem:    512248k total,   492372k used,    19876k free,    50412k buffers
Swap:   131832k total,        4k used,   131828k free,   347120k cached

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
16973 jso       15   0  2952 1164  904 R  1.8  0.2   0:00.13 top
     1 root      16   0  2292  708  572 S  0.0  0.1   0:31.77 init
16638 messageb  21   0  2780  808  624 S  0.0  0.2   0:00.04 dbus-daemon-1
16787 root      16   0  5936 3340  716 S  0.0  0.7   0:02.60 xfs
16799 root      19   0  4516 1388 1112 S  0.0  0.3   0:00.17 xinetd
16850 daemon    21   0  2416  476  312 S  0.0  0.1   0:00.01 atd
16853 root      16   0  2588  952  736 S  0.0  0.2   0:00.11 cron
16868 root      15   0 13488 1932 1184 S  0.0  0.4   0:00.06 gdm
16921 root      16   0  3528 1880 1432 S  0.0  0.4   0:01.34 bash
16963 root      16   0  6244 1280  848 S  0.0  0.2   0:00.02 sshd
16966 root      16   0 10700 3196 2564 S  0.0  0.6   0:00.63 sshd
16969 jso       15   0 10700 1808 1172 S  0.0  0.4   0:00.07 sshd
16970 jso       15   0  3956 2016 1392 S  0.0  0.4   0:00.13 sh

jso@hplvsrvr:~$ ip addr show
2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
     link/ether 00:60:b0:07:1e:ea brd ff:ff:ff:ff:ff:ff
     inet 192.168.248.145/24 brd 192.168.248.255 scope global secondary eth0


7.3/ Stop

Just to be sure that all would work fine:

# vserver DebSid stop
Stopping GNOME Display Manager: gdm.
Stopping periodic command scheduler: cron.
Stopping system message bus: dbus-1.
Stopping MTA: exim4.
Stopping printer spooler: lpd not running.
Stopping network benchmark server: netserver.
Stopping rsync daemon: rsync.
Stopping OpenBSD Secure Shell server: sshd.
Stopping X font server: xfs.
Stopping internet superserver: xinetd.
Stopping file alteration monitor: FAM.
Stopping deferred execution scheduler: atd.
Sending all processes the TERM signal...done.
Sending all processes the KILL signal...done.
Saving random seed...done.
/etc/vservers/DebSid/scripts/postpost-stop fixes sysvinit script's dir.
Link dev -> dev.Orig is created.
Link default -> default.Orig is created.
Link init.d -> init.d.Orig is created.
Link rc0.d -> rc0.d.Orig is created.
Link rc1.d -> rc1.d.Orig is created.
Link rc2.d -> rc2.d.Orig is created.
Link rc3.d -> rc3.d.Orig is created.
Link rc4.d -> rc4.d.Orig is created.
Link rc5.d -> rc5.d.Orig is created.
Link rc6.d -> rc6.d.Orig is created.
Link rcS.d -> rcS.d.Orig is created.


8/ start/stop at the host reboot?

# echo "default" > /etc/vservers/DebSid/apps/init/mark

reboot would confirm that

That's all folk.

Hth,
	Joel

PS: 7.4/ independent 'apt-get dist-upgrade' of guest:

I can use now apt-get to ugrade independently my guest system because:
	o this guest is mainly a test bed for very unstable stuff like libc6
	o my host is a testing debian and my guest is an unstable, though.

Because /etc/default, /etc/init.d are actualy /etc/default.VPS and /etc/init.d.VPS, I have to take care to sync *.Orig.
As well as I have to check that rc?.d (i.e. actualy rc?.d.VPS) are not updated by links that I removed here above (5.4.3/).
(still need to check the best way to do it?)

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On Wednesday 28 December 2005 02:22, Jean-Pierre HOFER wrote:
> Hello,
> 
> I have the same error message on a B180L, although X is starting (gdm).
> BUT the 3 buttons PS/2 mouse don't work at all
> I have the following mouse configuration in /etc/X11/XF86Config-4 :
> 
>         Section "InputDevice"
> 		Identifier      "Configured Mouse"
> 		Driver          "mouse"
> 		Option          "CorePointer"
> 		Option          "Device"                "/dev/psaux"
> 		Option          "Protocol"              "PS/2"

Try 
Device=/dev/input/mice
Protocol=imps2
and read the parisc-FAQ at http://www.parisc-linux.org/faq/index.html 

Helge
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On Wed, Dec 28, 2005 at 04:46:09PM -0500, John David Anglin wrote:
> ||/ Name           Version        Description
> +++-==============-==============-============================================
> ii  xserver-xfree8 4.3.0.dfsg.1-1 the XFree86 X server
>

Try installing xserver-xorg. That should help.

Cheers,
	Kyle 



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> I recently got 2.6.15-rc7-pa0 booting up on my rp3440 and noticed sym
> wasn't initializing HDs as it previously was, in fact it was
> initializing in Narrow mode instead of wide:

Same on c3k with 2.6.15-rc6-pa1 versus 2.6.14-rc5-pa1:

2.6.15:
Dec 26 17:12:48 hiauly6 kernel:  target1:0:5: FAST-40 SCSI 40.0 MB/s ST (25 ns, offset 31)

2.6.14:
Dec 26 17:03:45 hiauly6 kernel:  target1:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:23293

Hello all,

I am experimentiting a very werid pb with some of my p-l boxes:

just after a fresh reboot, even after only some 2h, I can launch the reboot cmdl without pb.

But after some uptime, to 'reboot' them i need to force it with 'reboot -f' with inconvenience it supposes ;-(

mmm when the pb arises, simple 'reboot' just shows the common message as the system will reboot, but nothing hapen?

Any other telinit [S6] didn't respond more?

And if I kill a runing getty (a one launched by init at start up), init didn't respawn it?

I already tried:
     o to downgrade sysvinit, no help;
     o to stop nfs/portmap deamon (I read a similar reported about this), no help.

this occures on most systems but not all, see:

no pb on:
	o my c110 running k-2.6.14.4-vs2.1.0-pa0 and unstable debian
	o a b180 running k-2.6.14-pa0 and unstable debian too

but pb on:
	o n4k 64bit smp debian unstable (iirc k-2.6.15-rc6-pa1)
	o b2k 32bit up debian unstable & k-2.6.15-rc6-pa1
	o d380 32bit up debian testing & k-2.6.14.4-vs2.1.0-pa0 (i.e. nearly the same as c110)
	o another b180 runing the exactly the same k-2.6.14-pa0 as b180 above mentioned but debian testing
	o the last b180 runing k-2.6.15-rc6-pa0 (gcc-4.1) and debian unstable

Unfortunately no means to strace init:

# strace -p 1
attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted
(the same on my i386 ;-( )

Anyway Mike help me to figure out that on affected systems, top (with addtional field WCHAN = Sleeping in Function)
init is in 'pause' not on the others (where it's in select)?

I tried following 'Watch_Init' script on d380 and b2k:
#!/bin/sh
#set -x

AWK="/usr/bin/awk"
CAT="/bin/cat"
DATE="/bin/date"
GREP="/bin/grep"
TOP="/usr/bin/top"
TOPRC="/root/.toprc"
TEE="/usr/bin/tee"

if [ -f $TOPRC ]
then
     echo "$TOPRC exist: please save it before retry."
     exit 1
fi

$CAT > $TOPRC <<EOF
RCfile for "top with windows"           # shameless braggin'
Id:a, Mode_altscr=0, Mode_irixps=1, Delay_time=3.000, Curwin=0
Def     fieldscur=AEHIOQTWKNMbcdfgjplrsuvYzX
         winflags=62777, sortindx=10, maxtasks=0
         summclr=1, msgsclr=1, headclr=3, taskclr=1
Job     fieldscur=ABcefgjlrstuvyzMKNHIWOPQDX
         winflags=62777, sortindx=0, maxtasks=0
         summclr=6, msgsclr=6, headclr=7, taskclr=6
Mem     fieldscur=ANOPQRSTUVbcdefgjlmyzWHIKX
         winflags=62777, sortindx=13, maxtasks=0
         summclr=5, msgsclr=5, headclr=4, taskclr=5
Usr     fieldscur=ABDECGfhijlopqrstuvyzMKNWX
         winflags=62777, sortindx=4, maxtasks=0
         summclr=3, msgsclr=3, headclr=2, taskclr=3
EOF

while true
do
     # Sleeping in Function
     WCHAN=$($TOP -p1 -n1 -b | $GREP "    1 root" | $AWK '{print $12}')
     if [ "X$WCHAN" != "Xselect" ]
     then
         break
     else
         sleep 5
     fi
done

$TOP -n1 -b 2>&1 | $TEE /var/logs/Watch_Init.doc

$DATE 2>&1  | $TEE -a /var/logs/Watch_Init.doc

exit 0
====<>====

may be not enough accurate because when it capture the 'switch', the 2 systems where doing different thing:
the d380:
top - 07:40:58 up 12:29,  2 users,  load average: 2.96, 1.80, 0.88
Tasks:  72 total,   3 running,  69 sleeping,   0 stopped,   0 zombie
Cpu(s):  4.4% us,  8.5% sy,  1.1% ni, 84.8% id,  1.1% wa,  0.0% hi,  0.1% si
Mem:    254716k total,   249192k used,     5524k free,    72340k buffers
Swap:   517480k total,        0k used,   517480k free,    66908k cached

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  WCHAN     COMMAND
  5956 root      17   0  2900 1340 1024 R  7.3  0.5  13:49.14 syscall_d top
16067 root      16   0  2896 1224  924 R  7.3  0.5   0:00.25 read      top
16072 root      29  10  1368  132  108 R  3.7  0.1   0:00.03 syscall_d cracklib-
16068 root      20   0  1744  528  420 S  2.4  0.2   0:00.03 pipe_wait tee
  1756 jso       16   0  9676 1884 1184 S  1.2  0.7   0:27.06 select    sshd
     1 root      16   0  2292  808  664 S  0.0  0.3   0:48.35 pause     init
     2 root      34  19     0    0    0 S  0.0  0.0   0:00.00 ksoftirqd ksoftirqd
     3 root      RT   0     0    0    0 S  0.0  0.0   0:00.05 msleep_in watchdog/
     4 root      10  -5     0    0    0 S  0.0  0.0   0:00.00 worker_th events/0
...
Thu Dec 29 07:40:59 CET 2005

the b2k:
top - 07:36:21 up 12:21,  3 users,  load average: 1.80, 0.61, 0.25
Tasks:  81 total,   1 running,  80 sleeping,   0 stopped,   0 zombie
Cpu(s):  1.6% us,  2.9% sy,  0.9% ni, 93.9% id,  0.6% wa,  0.0% hi,  0.0% si
Mem:    251828k total,   211644k used,    40184k free,    81176k buffers
Swap:   255928k total,        0k used,   255928k free,    90496k cached

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  WCHAN     COMMAND
  7749 root      17   2  2952 1220  920 R  3.7  0.5   0:00.06 alloc_pag top
  1736 root      16   0  2956 1344 1032 S  1.9  0.5  24:30.59 select    top
  7744 nobody    34  19  3584 1224  824 D  1.9  0.5   0:00.38 sync_buff find
     1 root      15   0  1764  684  564 S  0.0  0.3   0:11.50 pause     init
     2 root      34  19     0    0    0 S  0.0  0.0   0:00.00 ksoftirqd ksoftirqd
     3 root      RT   0     0    0    0 S  0.0  0.0   0:00.00 msleep_in watchdog/
     4 root      10  -5     0    0    0 S  0.0  0.0   0:04.52 worker_th events/0
...
Thu Dec 29 07:36:21 CET 2005

in fine, all seems different?

Am i the only one who experiment such pb?

Any idea how may I better tracing this pb? (lttng? for 2.6.14 only)

Thanks in advance,
	Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:23294

> Try installing xserver-xorg. That should help.

Still no joy.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

X Window System Version 6.8.2 (Debian 6.8.2.dfsg.1-11 20051202210922 root@)
Release Date: 9 February 2005
X Protocol Version 11, Revision 0, Release 6.8.2
Build Operating System: Linux 2.6.12-1-64-smp parisc64 [ELF] 
Current Operating System: Linux hiauly6 2.6.15-rc6-pa1 #1 Mon Dec 19 15:13:14 MST 2005 parisc
Build Date: 02 December 2005
	Before reporting problems, check http://wiki.X.Org
	to make sure that you have the latest version.
OS Kernel: Linux version 2.6.15-rc6-pa1 (bame@palinux) (gcc version 3.3.5 (Debian 1:3.3.5-13)) #1 Mon Dec 19 15:13:14 MST 2005 
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Wed Dec 28 17:55:22 2005
(==) Using config file: "/etc/X11/xorg.conf"
(==) ServerLayout "Default Layout"
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "NEC LCD1980SX"
(**) |   |-->Device "PCI_GRAFFITIX1280"
(**) |-->Input Device "Generic Keyboard"
(**) Option "XkbRules" "xfree86"
(**) XKB: rules: "xfree86"
(**) Option "XkbModel" "pc104"
(**) XKB: model: "pc104"
(**) Option "XkbLayout" "us"
(**) XKB: layout: "us"
(==) Keyboard: CustomKeycode disabled
(**) |-->Input Device "USB Mouse"
(**) FontPath set to "unix/:7100,/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts/cyrillic,/usr/lib/X11/fonts/100dpi/:unscaled,/usr/lib/X11/fonts/75dpi/:unscaled,/usr/lib/X11/fonts/Type1,/usr/lib/X11/fonts/Speedo,/usr/lib/X11/fonts/100dpi,/usr/lib/X11/fonts/75dpi"
(==) RgbPath set to "/usr/X11R6/lib/X11/rgb"
(WW) Open APM failed (/dev/apm_bios) (No such file or directory)
(--) using VT number 2

(II) PCI: PCI scan (all values are in hex)
(II) PCI: 00:0c:0: chip 1011,0019 card 103c,104f rev 41 class 02,00,00 hdr 00
(II) PCI: 00:0d:0: chip 11d4,1889 card 11d4,1889 rev 00 class 04,01,00 hdr 00
(II) PCI: 00:0e:0: chip 100b,0002 card 0000,0000 rev 03 class 01,01,8f hdr 80
(II) PCI: 00:0e:1: chip 100b,000e card 0000,0000 rev 01 class 06,80,00 hdr 80
(II) PCI: 00:0e:2: chip 100b,0012 card 0000,0000 rev 02 class 0c,03,10 hdr 80
(II) PCI: 00:0f:0: chip 1000,000b card 1000,1000 rev 07 class 01,00,00 hdr 80
(II) PCI: 00:0f:1: chip 1000,000b card 1000,1000 rev 07 class 01,00,00 hdr 80
(II) PCI: 01:06:0: chip 1011,0019 card 103c,1067 rev 21 class 02,00,00 hdr 00
(II) PCI: 02:03:0: chip 103c,1005 card 0000,0000 rev 03 class 03,80,00 hdr 00
(II) PCI: 03:02:0: chip 103c,1008 card 0000,0000 rev 02 class 03,80,00 hdr 00
(II) PCI: End of PCI scan
(II) Host-to-PCI bridge:
(II) Bus 0: bridge is at (0:0:0), (0,0,0), BCTRL: 0x0008 (VGA_EN is set)
(II) Bus 0 I/O range:
	[0] -1	0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 0 non-prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 0 prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Host-to-PCI bridge:
(II) Bus 1: bridge is at (0:0:0), (1,1,0), BCTRL: 0x0008 (VGA_EN is set)
(II) Bus 1 I/O range:
	[0] -1	0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 1 non-prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 1 prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Host-to-PCI bridge:
(II) Bus 2: bridge is at (0:0:0), (2,2,0), BCTRL: 0x0008 (VGA_EN is set)
(II) Bus 2 I/O range:
	[0] -1	0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 2 non-prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 2 prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Host-to-PCI bridge:
(II) Bus 3: bridge is at (0:0:0), (3,3,0), BCTRL: 0x0008 (VGA_EN is set)
(II) Bus 3 I/O range:
	[0] -1	0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) Bus 3 non-prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(II) Bus 3 prefetchable memory range:
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
(--) PCI: (2:3:0) Hewlett-Packard Company A4977A Visualize EG rev 3, Mem @ 0xf8000000/25, BIOS @ 0xf6000000/16
(--) PCI: (3:2:0) Hewlett-Packard Company Visualize FX4 rev 2, Mem @ 0xfa000000/25, BIOS @ 0xf7000000/21
(II) Addressable bus resource ranges are
	[0] -1	0	0x00000000 - 0xffffffff (0x0) MX[B]
	[1] -1	0	0x00000000 - 0x0000ffff (0x10000) IX[B]
(II) OS-reported resource ranges:
	[0] -1	0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1	0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1	0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1	0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) Active PCI resource ranges:
	[0] -1	0	0xf4800000 - 0xf480007f (0x80) MX[B]
	[1] -1	0	0xf4000000 - 0xf4001fff (0x2000) MX[B]
	[2] -1	0	0xf4004000 - 0xf40043ff (0x400) MX[B]
	[3] -1	0	0xf4002000 - 0xf4003fff (0x2000) MX[B]
	[4] -1	0	0xf4005000 - 0xf40053ff (0x400) MX[B]
	[5] -1	0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[6] -1	0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[7] -1	0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[8] -1	0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[9] -1	0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[10] -1	0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[11] -1	0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[12] -1	0	0xf7000000 - 0xf71fffff (0x200000) MX[B](B)
	[13] -1	0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[14] -1	0	0xf6000000 - 0xf600ffff (0x10000) MX[B](B)
	[15] -1	0	0xf8000000 - 0xf9ffffff (0x2000000) MX[B](B)
	[16] -1	0	0x00002000 - 0x0000207f (0x80) IX[B]
	[17] -1	0	0x00000800 - 0x000008ff (0x100) IX[B]
	[18] -1	0	0x00000900 - 0x000009ff (0x100) IX[B]
	[19] -1	0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[20] -1	0	0x00000b00 - 0x00000b03 (0x4) IX[B]
	[21] -1	0	0x00000d00 - 0x00000d07 (0x8) IX[B]
	[22] -1	0	0x00000e00 - 0x00000e03 (0x4) IX[B]
	[23] -1	0	0x00000f00 - 0x00000f07 (0x8) IX[B]
	[24] -1	0	0x00001000 - 0x0000107f (0x80) IX[B]
(II) Active PCI resource ranges after removing overlaps:
	[0] -1	0	0xf4800000 - 0xf480007f (0x80) MX[B]
	[1] -1	0	0xf4000000 - 0xf4001fff (0x2000) MX[B]
	[2] -1	0	0xf4004000 - 0xf40043ff (0x400) MX[B]
	[3] -1	0	0xf4002000 - 0xf4003fff (0x2000) MX[B]
	[4] -1	0	0xf4005000 - 0xf40053ff (0x400) MX[B]
	[5] -1	0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[6] -1	0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[7] -1	0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[8] -1	0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[9] -1	0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[10] -1	0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[11] -1	0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[12] -1	0	0xf7000000 - 0xf71fffff (0x200000) MX[B](B)
	[13] -1	0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[14] -1	0	0xf6000000 - 0xf600ffff (0x10000) MX[B](B)
	[15] -1	0	0xf8000000 - 0xf9ffffff (0x2000000) MX[B](B)
	[16] -1	0	0x00002000 - 0x0000207f (0x80) IX[B]
	[17] -1	0	0x00000800 - 0x000008ff (0x100) IX[B]
	[18] -1	0	0x00000900 - 0x000009ff (0x100) IX[B]
	[19] -1	0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[20] -1	0	0x00000b00 - 0x00000b03 (0x4) IX[B]
	[21] -1	0	0x00000d00 - 0x00000d07 (0x8) IX[B]
	[22] -1	0	0x00000e00 - 0x00000e03 (0x4) IX[B]
	[23] -1	0	0x00000f00 - 0x00000f07 (0x8) IX[B]
	[24] -1	0	0x00001000 - 0x0000107f (0x80) IX[B]
(II) OS-reported resource ranges after removing overlaps with PCI:
	[0] -1	0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1	0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1	0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[3] -1	0	0x00000000 - 0x00000000 (0x1) IX[B]
(II) All system resource ranges:
	[0] -1	0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1	0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1	0	0xf4800000 - 0xf480007f (0x80) MX[B]
	[3] -1	0	0xf4000000 - 0xf4001fff (0x2000) MX[B]
	[4] -1	0	0xf4004000 - 0xf40043ff (0x400) MX[B]
	[5] -1	0	0xf4002000 - 0xf4003fff (0x2000) MX[B]
	[6] -1	0	0xf4005000 - 0xf40053ff (0x400) MX[B]
	[7] -1	0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[8] -1	0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[9] -1	0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[10] -1	0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[11] -1	0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[12] -1	0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[13] -1	0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[14] -1	0	0xf7000000 - 0xf71fffff (0x200000) MX[B](B)
	[15] -1	0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[16] -1	0	0xf6000000 - 0xf600ffff (0x10000) MX[B](B)
	[17] -1	0	0xf8000000 - 0xf9ffffff (0x2000000) MX[B](B)
	[18] -1	0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[19] -1	0	0x00000000 - 0x00000000 (0x1) IX[B]
	[20] -1	0	0x00002000 - 0x0000207f (0x80) IX[B]
	[21] -1	0	0x00000800 - 0x000008ff (0x100) IX[B]
	[22] -1	0	0x00000900 - 0x000009ff (0x100) IX[B]
	[23] -1	0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[24] -1	0	0x00000b00 - 0x00000b03 (0x4) IX[B]
	[25] -1	0	0x00000d00 - 0x00000d07 (0x8) IX[B]
	[26] -1	0	0x00000e00 - 0x00000e03 (0x4) IX[B]
	[27] -1	0	0x00000f00 - 0x00000f07 (0x8) IX[B]
	[28] -1	0	0x00001000 - 0x0000107f (0x80) IX[B]
(II) ATI: ATI driver (version 6.5.6) for chipset: ati
(II) R128: Driver for ATI Rage 128 chipsets:
	ATI Rage 128 Mobility M3 LE (PCI), ATI Rage 128 Mobility M3 LF (AGP),
	ATI Rage 128 Mobility M4 MF (AGP), ATI Rage 128 Mobility M4 ML (AGP),
	ATI Rage 128 Pro GL PA (AGP?), ATI Rage 128 Pro GL PB (AGP?),
	ATI Rage 128 Pro GL PC (AGP?), ATI Rage 128 Pro GL PD (PCI),
	ATI Rage 128 Pro GL PE (AGP?), ATI Rage 128 Pro GL PF (AGP),
	ATI Rage 128 Pro VR PG (AGP?), ATI Rage 128 Pro VR PH (AGP?),
	ATI Rage 128 Pro VR PI (AGP?), ATI Rage 128 Pro VR PJ (AGP?),
	ATI Rage 128 Pro VR PK (AGP?), ATI Rage 128 Pro VR PL (AGP?),
	ATI Rage 128 Pro VR PM (AGP?), ATI Rage 128 Pro VR PN (AGP?),
	ATI Rage 128 Pro VR PO (AGP?), ATI Rage 128 Pro VR PP (PCI),
	ATI Rage 128 Pro VR PQ (AGP?), ATI Rage 128 Pro VR PR (PCI),
	ATI Rage 128 Pro VR PS (AGP?), ATI Rage 128 Pro VR PT (AGP?),
	ATI Rage 128 Pro VR PU (AGP?), ATI Rage 128 Pro VR PV (AGP?),
	ATI Rage 128 Pro VR PW (AGP?), ATI Rage 128 Pro VR PX (AGP?),
	ATI Rage 128 GL RE (PCI), ATI Rage 128 GL RF (AGP),
	ATI Rage 128 RG (AGP), ATI Rage 128 VR RK (PCI),
	ATI Rage 128 VR RL (AGP), ATI Rage 128 4X SE (AGP?),
	ATI Rage 128 4X SF (AGP?), ATI Rage 128 4X SG (AGP?),
	ATI Rage 128 4X SH (AGP?), ATI Rage 128 4X SK (AGP?),
	ATI Rage 128 4X SL (AGP?), ATI Rage 128 4X SM (AGP),
	ATI Rage 128 4X SN (AGP?), ATI Rage 128 Pro ULTRA TF (AGP),
	ATI Rage 128 Pro ULTRA TL (AGP), ATI Rage 128 Pro ULTRA TR (AGP),
	ATI Rage 128 Pro ULTRA TS (AGP?), ATI Rage 128 Pro ULTRA TT (AGP?),
	ATI Rage 128 Pro ULTRA TU (AGP?)
(II) RADEON: Driver for ATI Radeon chipsets: ATI Radeon QD (AGP),
	ATI Radeon QE (AGP), ATI Radeon QF (AGP), ATI Radeon QG (AGP),
	ATI Radeon VE/7000 QY (AGP/PCI), ATI Radeon VE/7000 QZ (AGP/PCI),
	ATI Radeon Mobility M7 LW (AGP),
	ATI Mobility FireGL 7800 M7 LX (AGP),
	ATI Radeon Mobility M6 LY (AGP), ATI Radeon Mobility M6 LZ (AGP),
	ATI Radeon IGP320 (A3) 4136, ATI Radeon IGP320M (U1) 4336,
	ATI Radeon IGP330/340/350 (A4) 4137,
	ATI Radeon IGP330M/340M/350M (U2) 4337,
	ATI Radeon 7000 IGP (A4+) 4237, ATI Radeon Mobility 7000 IGP 4437,
	ATI FireGL 8700/8800 QH (AGP), ATI Radeon 8500 QL (AGP),
	ATI Radeon 9100 QM (AGP), ATI Radeon 8500 AIW BB (AGP),
	ATI Radeon 8500 AIW BC (AGP), ATI Radeon 7500 QW (AGP/PCI),
	ATI Radeon 7500 QX (AGP/PCI), ATI Radeon 9000/PRO If (AGP/PCI),
	ATI Radeon 9000 Ig (AGP/PCI), ATI FireGL Mobility 9000 (M9) Ld (AGP),
	ATI Radeon Mobility 9000 (M9) Lf (AGP),
	ATI Radeon Mobility 9000 (M9) Lg (AGP),
	ATI Radeon 9100 IGP (A5) 5834,
	ATI Radeon Mobility 9100 IGP (U3) 5835, ATI Radeon 9100 PRO IGP 7834,
	ATI Radeon Mobility 9200 IGP 7835, ATI Radeon 9200PRO 5960 (AGP),
	ATI Radeon 9200 5961 (AGP), ATI Radeon 9200 5962 (AGP),
	ATI Radeon 9200SE 5964 (AGP), ATI FireMV 2200 (PCI),
	ATI Radeon Mobility 9200 (M9+) 5C61 (AGP),
	ATI Radeon Mobility 9200 (M9+) 5C63 (AGP), ATI Radeon 9500 AD (AGP),
	ATI Radeon 9500 AE (AGP), ATI Radeon 9600TX AF (AGP),
	ATI FireGL Z1 AG (AGP), ATI Radeon 9700 Pro ND (AGP),
	ATI Radeon 9700/9500Pro NE (AGP), ATI Radeon 9700 NF (AGP),
	ATI FireGL X1 NG (AGP), ATI Radeon 9600 AP (AGP),
	ATI Radeon 9600SE AQ (AGP), ATI Radeon 9600XT AR (AGP),
	ATI Radeon 9600 AS (AGP), ATI FireGL T2 AT (AGP),
	ATI FireGL RV360 AV (AGP),
	ATI Radeon Mobility 9600/9700 (M10/M11) NP (AGP),
	ATI Radeon Mobility 9600 (M10) NQ (AGP),
	ATI Radeon Mobility 9600 (M11) NR (AGP),
	ATI Radeon Mobility 9600 (M10) NS (AGP),
	ATI FireGL Mobility T2 (M10) NT (AGP),
	ATI FireGL Mobility T2e (M11) NV (AGP), ATI Radeon 9650,
	ATI Radeon 9800SE AH (AGP), ATI Radeon 9800 AI (AGP),
	ATI Radeon 9800 AJ (AGP), ATI FireGL X2 AK (AGP),
	ATI Radeon 9800PRO NH (AGP), ATI Radeon 9800 NI (AGP),
	ATI FireGL X2 NK (AGP), ATI Radeon 9800XT NJ (AGP),
	ATI Radeon X600 (RV380) 3E50 (PCIE),
	ATI FireGL V3200 (RV380) 3E54 (PCIE),
	ATI Radeon Mobility X600 (M24) 3150 (PCIE),
	ATI FireGL M24 GL 3154 (PCIE), ATI Radeon X300 (RV370) 5B60 (PCIE),
	ATI Radeon X600 (RV370) 5B62 (PCIE),
	ATI FireGL V3100 (RV370) 5B64 (PCIE),
	ATI FireGL D1100 (RV370) 5B65 (PCIE),
	ATI Radeon Mobility M300 (M22) 5460 (PCIE),
	ATI FireGL M22 GL 5464 (PCIE), ATI Radeon XPRESS 200 5A41 (PCIE),
	ATI Radeon XPRESS 200M 5A42 (PCIE),
	ATI Radeon XPRESS 200 5A61 (PCIE),
	ATI Radeon XPRESS 200M 5A62 (PCIE),
	ATI Radeon XPRESS 200 5954 (PCIE),
	ATI Radeon XPRESS 200M 5955 (PCIE),
	ATI Radeon XPRESS 200 5974 (PCIE),
	ATI Radeon XPRESS 200M 5975 (PCIE), ATI FireGL V5000 (RV410) (PCIE),
	ATI Mobility FireGL V5000 (M26) (PCIE),
	ATI Mobility FireGL V5000 (M26) (PCIE),
	ATI Mobility Radeon X700 (M26) (PCIE),
	ATI Mobility Radeon X700 (M26) (PCIE),
	ATI Radeon X700 PRO (RV410) (PCIE),
	ATI Radeon X700 XT (RV410) (PCIE), ATI Radeon X700 (RV410) (PCIE),
	ATI Radeon X700 SE (RV410) (PCIE), ATI Radeon X700 SE (RV410) (PCIE),
	ATI Radeon X800 (R420) JH (AGP), ATI Radeon X800PRO (R420) JI (AGP),
	ATI Radeon X800SE (R420) JJ (AGP), ATI Radeon X800 (R420) JK (AGP),
	ATI Radeon X800 (R420) JL (AGP), ATI FireGL X3 (R420) JM (AGP),
	ATI Radeon Mobility 9800 (M18) JN (AGP),
	ATI Radeon X800XT (R420) JP (AGP), ATI Radeon X800 SE (R420) (AGP),
	ATI Radeon X800 (R423) UH (PCIE),
	ATI Radeon X800PRO (R423) UI (PCIE),
	ATI Radeon X800LE (R423) UJ (PCIE),
	ATI Radeon X800SE (R423) UK (PCIE),
	ATI FireGL V7200 (R423) UQ (PCIE), ATI FireGL V5100 (R423) UR (PCIE),
	ATI FireGL V7100 (R423) UT (PCIE),
	ATI Radeon X800XT (R423) 5D57 (PCIE), ATI FireGL V7100 (R423) (PCIE),
	ATI Mobility FireGL V5100 (M28) (PCIE),
	ATI Mobility Radeon X800 (M28) (PCIE),
	ATI Mobility Radeon X800 XT (M28) (PCIE),
	ATI Radeon X800 (R430) (PCIE), ATI Radeon X800 XL (R430) (PCIE),
	ATI Radeon X800 SE (R430) (PCIE), ATI Radeon X800 XTP (R430) (PCIE),
	ATI Radeon X850 5D4C (PCIE), ATI Radeon FireGL (R480) GL 5D50 (PCIE),
	ATI Radeon X850 SE (R480) (PCIE), ATI Radeon X850 PRO (R480) (PCIE),
	ATI Radeon X850 XT (R480) (PCIE),
	ATI Radeon X850 XT PE (R480) (PCIE),
	ATI Radeon X850 PRO (R480) (AGP), ATI Radeon X850 SE (R480) (AGP),
	ATI Radeon X850 XT (R480) (AGP), ATI Radeon X850 XT PE (R480) (AGP)
(II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
	mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag400,
	mgag550
(II) GLINT: driver for 3Dlabs chipsets: gamma, gamma2, ti_pm2, ti_pm, r4,
	pm4, pm3, pm2v, pm2, pm, 300sx, 500tx, mx, delta
(II) NV: driver for NVIDIA chipsets: RIVA 128, RIVA TNT, RIVA TNT2,
	Unknown TNT2, Vanta, RIVA TNT2 Ultra, RIVA TNT2 Model 64,
	Aladdin TNT2, GeForce 256, GeForce DDR, Quadro, GeForce2 MX/MX 400,
	GeForce2 MX 100/200, GeForce2 Go, Quadro2 MXR/EX/Go,
	GeForce2 Integrated GPU, GeForce2 GTS, GeForce2 Ti, GeForce2 Ultra,
	Quadro2 Pro, GeForce4 MX 460, GeForce4 MX 440, GeForce4 MX 420,
	GeForce4 MX 440-SE, GeForce4 440 Go, GeForce4 420 Go,
	GeForce4 420 Go 32M, GeForce4 460 Go, Quadro4 550 XGL,
	GeForce4 440 Go 64M, Quadro4 NVS, Quadro4 500 GoGL,
	GeForce4 410 Go 16M, GeForce4 MX 440 with AGP8X,
	GeForce4 MX 440SE with AGP8X, GeForce4 MX 420 with AGP8X,
	GeForce4 MX 4000, GeForce4 448 Go, GeForce4 488 Go, Quadro4 580 XGL,
	Quadro4 280 NVS, Quadro4 380 XGL, Quadro NVS 50 PCI, GeForce4 448 Go,
	GeForce4 MX Integrated GPU, GeForce3, GeForce3 Ti 200,
	GeForce3 Ti 500, Quadro DCC, GeForce4 Ti 4600, GeForce4 Ti 4400,
	0x0252, GeForce4 Ti 4200, Quadro4 900 XGL, Quadro4 750 XGL,
	Quadro4 700 XGL, GeForce4 Ti 4800, GeForce4 Ti 4200 with AGP8X,
	GeForce4 Ti 4800 SE, GeForce4 4200 Go, Quadro4 700 GoGL,
	Quadro4 980 XGL, Quadro4 780 XGL, GeForce FX 5800 Ultra,
	GeForce FX 5800, Quadro FX 2000, Quadro FX 1000,
	GeForce FX 5600 Ultra, GeForce FX 5600, 0x0313, GeForce FX 5600SE,
	0x0316, 0x0317, GeForce FX Go5600, GeForce FX Go5650,
	Quadro FX Go700, 0x031D, 0x031E, 0x031F, GeForce FX 5200,
	GeForce FX 5200 Ultra, GeForce FX 5200, GeForce FX 5200SE,
	GeForce FX Go5200, GeForce FX Go5250, GeForce FX 5500,
	GeForce FX 5100, GeForce FX Go5200 32M/64M, 0x0329,
	Quadro NVS 280 PCI, Quadro FX 500/600 PCI, GeForce FX Go53xx Series,
	GeForce FX Go5100, 0x032F, GeForce FX 5900 Ultra, GeForce FX 5900,
	GeForce FX 5900XT, GeForce FX 5950 Ultra, Quadro FX 700,
	GeForce FX 5900ZT, Quadro FX 3000, GeForce FX 5700 Ultra,
	GeForce FX 5700, GeForce FX 5700LE, GeForce FX 5700VE, 0x0345,
	GeForce FX Go5700, GeForce FX Go5700, 0x0349, 0x034B,
	Quadro FX Go1000, Quadro FX 1100, 0x034F, GeForce 6800 Ultra,
	GeForce 6800, GeForce 6800 LE, 0x0043, GeForce 6800 GT, 0x0049,
	Quadro FX 4000, Quadro FX 4400, 0x00C0, 0x00C1, GeForce 6800 LE,
	0x00C8, 0x00C9, 0x00CC, 0x00CE, GeForce 6600 GT, GeForce 6600,
	0x0142, 0x0143, GeForce Go 6600, GeForce 6610 XL,
	GeForce Go 6600 TE/6200 TE, 0x0147, GeForce Go 6600, 0x0149, 0x014B,
	0x014C, 0x014D, Quadro FX 540, GeForce 6200, 0x0160, 0x0166, 0x0210,
	0x0211, 0x021D, 0x021E
(II) S3: driver (version 0.3.5 for S3 chipset: 964-0, 964-1, 968,
	Trio32/64, Aurora64V+, Trio64UV+, Trio64V2/DX/GX
(II) S3VIRGE: driver (version 1.8.6) for S3 ViRGE chipsets: virge, 86C325,
	virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
	86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
	trio 3d/2x, 86C362, 86C368
(II) SIS: driver for SiS chipsets: SIS5597/5598, SIS530/620,
	SIS6326/AGP/DVD, SIS300/305, SIS630/730, SIS540, SIS315, SIS315H,
	SIS315PRO, SIS550, SIS650/M650/651/740, SIS330(Xabre),
	SIS660/661FX/M661FX/M661MX/741/741GX/M741/760/M760, SIS340
(II) SAVAGE: driver (version 2.0.0) for S3 Savage chipsets: Savage4,
	Savage3D, Savage3D-MV, Savage2000, Savage/MX-MV, Savage/MX,
	Savage/IX-MV, Savage/IX, ProSavage PM133, ProSavage KM133,
	Twister PN133, Twister KN133, SuperSavage/MX 128, SuperSavage/MX 64,
	SuperSavage/MX 64C, SuperSavage/IX 128, SuperSavage/IX 128,
	SuperSavage/IX 64, SuperSavage/IX 64, SuperSavage/IXC 64,
	SuperSavage/IXC 64, ProSavage DDR, ProSavage DDR-K
(II) TRIDENT: driver for Trident chipsets: tvga9000, tvga9000i, tvga8900c,
	tvga8900d, tvga9200cxr, tgui9400cxi, cyber9320, cyber9388, cyber9397,
	cyber9397dvd, cyber9520, cyber9525dvd, cyberblade/e4, tgui9420dgi,
	tgui9440agi, tgui9660, tgui9680, providia9682, providia9685,
	cyber9382, cyber9385, 3dimage975, 3dimage985, blade3d, cyberbladei7,
	cyberbladei7d, cyberbladei1, cyberbladei1d, cyberbladeAi1,
	cyberbladeAi1d, bladeXP, cyberbladeXPAi1, cyberbladeXP4
(II) CHIPS: Driver for Chips and Technologies chipsets: ct65520, ct65525,
	ct65530, ct65535, ct65540, ct65545, ct65546, ct65548, ct65550,
	ct65554, ct65555, ct68554, ct69000, ct69030, ct64200, ct64300
(II) TDFX: Driver for 3dfx Banshee/Voodoo3 chipsets: 3dfx Banshee,
	3dfx Voodoo3, 3dfx Voodoo5
(II) VGA: Generic VGA driver (version 4.0) for chipsets: generic
(II) FBDEV: driver for framebuffer: fbdev
(II) v4l driver for Video4Linux
(II) resource ranges after xf86ClaimFixedResources() call:
	[0] -1	0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1	0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1	0	0xf4800000 - 0xf480007f (0x80) MX[B]
	[3] -1	0	0xf4000000 - 0xf4001fff (0x2000) MX[B]
	[4] -1	0	0xf4004000 - 0xf40043ff (0x400) MX[B]
	[5] -1	0	0xf4002000 - 0xf4003fff (0x2000) MX[B]
	[6] -1	0	0xf4005000 - 0xf40053ff (0x400) MX[B]
	[7] -1	0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[8] -1	0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[9] -1	0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[10] -1	0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[11] -1	0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[12] -1	0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[13] -1	0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[14] -1	0	0xf7000000 - 0xf71fffff (0x200000) MX[B](B)
	[15] -1	0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[16] -1	0	0xf6000000 - 0xf600ffff (0x10000) MX[B](B)
	[17] -1	0	0xf8000000 - 0xf9ffffff (0x2000000) MX[B](B)
	[18] -1	0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[19] -1	0	0x00000000 - 0x00000000 (0x1) IX[B]
	[20] -1	0	0x00002000 - 0x0000207f (0x80) IX[B]
	[21] -1	0	0x00000800 - 0x000008ff (0x100) IX[B]
	[22] -1	0	0x00000900 - 0x000009ff (0x100) IX[B]
	[23] -1	0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[24] -1	0	0x00000b00 - 0x00000b03 (0x4) IX[B]
	[25] -1	0	0x00000d00 - 0x00000d07 (0x8) IX[B]
	[26] -1	0	0x00000e00 - 0x00000e03 (0x4) IX[B]
	[27] -1	0	0x00000f00 - 0x00000f07 (0x8) IX[B]
	[28] -1	0	0x00001000 - 0x0000107f (0x80) IX[B]
(**) FBDEV(0): claimed PCI slot 2:3:0
(II) FBDEV(0): using default device
(II) resource ranges after probing:
	[0] -1	0	0xffffffff - 0xffffffff (0x1) MX[B]
	[1] -1	0	0x00000000 - 0x00000000 (0x1) MX[B]
	[2] -1	0	0xf4800000 - 0xf480007f (0x80) MX[B]
	[3] -1	0	0xf4000000 - 0xf4001fff (0x2000) MX[B]
	[4] -1	0	0xf4004000 - 0xf40043ff (0x400) MX[B]
	[5] -1	0	0xf4002000 - 0xf4003fff (0x2000) MX[B]
	[6] -1	0	0xf4005000 - 0xf40053ff (0x400) MX[B]
	[7] -1	0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[8] -1	0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[9] -1	0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[10] -1	0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[11] -1	0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[12] -1	0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[13] -1	0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[14] -1	0	0xf7000000 - 0xf71fffff (0x200000) MX[B](B)
	[15] -1	0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[16] -1	0	0xf6000000 - 0xf600ffff (0x10000) MX[B](B)
	[17] -1	0	0xf8000000 - 0xf9ffffff (0x2000000) MX[B](B)
	[18] 0	0	0x000a0000 - 0x000affff (0x10000) MS[B]
	[19] 0	0	0x000b0000 - 0x000b7fff (0x8000) MS[B]
	[20] 0	0	0x000b8000 - 0x000bffff (0x8000) MS[B]
	[21] -1	0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[22] -1	0	0x00000000 - 0x00000000 (0x1) IX[B]
	[23] -1	0	0x00002000 - 0x0000207f (0x80) IX[B]
	[24] -1	0	0x00000800 - 0x000008ff (0x100) IX[B]
	[25] -1	0	0x00000900 - 0x000009ff (0x100) IX[B]
	[26] -1	0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[27] -1	0	0x00000b00 - 0x00000b03 (0x4) IX[B]
	[28] -1	0	0x00000d00 - 0x00000d07 (0x8) IX[B]
	[29] -1	0	0x00000e00 - 0x00000e03 (0x4) IX[B]
	[30] -1	0	0x00000f00 - 0x00000f07 (0x8) IX[B]
	[31] -1	0	0x00001000 - 0x0000107f (0x80) IX[B]
	[32] 0	0	0x000003b0 - 0x000003bb (0xc) IS[B]
	[33] 0	0	0x000003c0 - 0x000003df (0x20) IS[B]
(II) Setting vga for screen 0.
(**) FBDEV(0): Depth 8, (--) framebuffer bpp 8
(==) FBDEV(0): Default visual is PseudoColor
(==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDEV(0): hardware: stifb (video memory: 2048kB)
(II) FBDEV(0): checking modes against framebuffer device...
(II) FBDEV(0): 	mode "1280x1024" ok
(II) FBDEV(0): checking modes against monitor...
(--) FBDEV(0): Virtual size is 1280x1024 (pitch 1280)
(**) FBDEV(0):  Default mode "1280x1024": 108.0 MHz (scaled from 0.0 MHz), 64.0 kHz, 60.0 Hz
(II) FBDEV(0): Modeline "1280x1024"  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync
(++) FBDEV(0): DPI set to (100, 100)
(**) FBDEV(0): using shadow framebuffer
(II) resource ranges after preInit:
	[0] 0	0	0xf8000000 - 0xf9ffffff (0x2000000) MX[B]
	[1] -1	0	0xffffffff - 0xffffffff (0x1) MX[B]
	[2] -1	0	0x00000000 - 0x00000000 (0x1) MX[B]
	[3] -1	0	0xf4800000 - 0xf480007f (0x80) MX[B]
	[4] -1	0	0xf4000000 - 0xf4001fff (0x2000) MX[B]
	[5] -1	0	0xf4004000 - 0xf40043ff (0x400) MX[B]
	[6] -1	0	0xf4002000 - 0xf4003fff (0x2000) MX[B]
	[7] -1	0	0xf4005000 - 0xf40053ff (0x400) MX[B]
	[8] -1	0	0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[9] -1	0	0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[10] -1	0	0xf4009000 - 0xf400900f (0x10) MX[B]
	[11] -1	0	0xf400a000 - 0xf400a00f (0x10) MX[B]
	[12] -1	0	0xf400b000 - 0xf400b00f (0x10) MX[B]
	[13] -1	0	0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[14] -1	0	0xf4008000 - 0xf40083ff (0x400) MX[B]
	[15] -1	0	0xf7000000 - 0xf71fffff (0x200000) MX[B](B)
	[16] -1	0	0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[17] -1	0	0xf6000000 - 0xf600ffff (0x10000) MX[B](B)
	[18] -1	0	0xf8000000 - 0xf9ffffff (0x2000000) MX[B](B)
	[19] 0	0	0x000a0000 - 0x000affff (0x10000) MS[B]
	[20] 0	0	0x000b0000 - 0x000b7fff (0x8000) MS[B]
	[21] 0	0	0x000b8000 - 0x000bffff (0x8000) MS[B]
	[22] -1	0	0x0000ffff - 0x0000ffff (0x1) IX[B]
	[23] -1	0	0x00000000 - 0x00000000 (0x1) IX[B]
	[24] -1	0	0x00002000 - 0x0000207f (0x80) IX[B]
	[25] -1	0	0x00000800 - 0x000008ff (0x100) IX[B]
	[26] -1	0	0x00000900 - 0x000009ff (0x100) IX[B]
	[27] -1	0	0x00000a00 - 0x00000a0f (0x10) IX[B]
	[28] -1	0	0x00000b00 - 0x00000b03 (0x4) IX[B]
	[29] -1	0	0x00000d00 - 0x00000d07 (0x8) IX[B]
	[30] -1	0	0x00000e00 - 0x00000e03 (0x4) IX[B]
	[31] -1	0	0x00000f00 - 0x00000f07 (0x8) IX[B]
	[32] -1	0	0x00001000 - 0x0000107f (0x80) IX[B]
	[33] 0	0	0x000003b0 - 0x000003bb (0xc) IS[B]
	[34] 0	0	0x000003c0 - 0x000003df (0x20) IS[B]
(EE) FBDEV(0): FBIOPAN_DISPLAY: Invalid argument
(==) FBDEV(0): Backing store disabled
(**) Option "dpms"
(**) FBDEV(0): DPMS enabled
(==) RandR enabled
(II) Setting vga for screen 0.
(**) Generic Keyboard: Core Keyboard
(**) Option "Protocol" "standard"
(**) Generic Keyboard: Protocol: standard
(**) Option "AutoRepeat" "500 30"
(**) Option "XkbRules" "xfree86"
(**) Generic Keyboard: XkbRules: "xfree86"
(**) Option "XkbModel" "pc104"
(**) Generic Keyboard: XkbModel: "pc104"
(**) Option "XkbLayout" "us"
(**) Generic Keyboard: XkbLayout: "us"
(**) Option "CustomKeycodes" "off"
(**) Generic Keyboard: CustomKeycodes disabled
(**) Option "Protocol" "ImPS/2"
(**) USB Mouse: Device: "/dev/input/mice"
(**) USB Mouse: Protocol: "ImPS/2"
(**) Option "SendCoreEvents" "true"
(**) USB Mouse: always reports core events
(**) Option "CorePointer"
(**) USB Mouse: Core Pointer
(**) Option "Device" "/dev/input/mice"
(**) Option "Emulate3Buttons" "true"
(**) USB Mouse: Emulate3Buttons, Emulate3Timeout: 50
(**) Option "ZAxisMapping" "4 5"
(**) USB Mouse: ZAxisMapping: buttons 4 and 5
(**) USB Mouse: Buttons: 5
(II) XINPUT: Adding extended input device "USB Mouse" (type: MOUSE)
(II) XINPUT: Adding extended input device "Generic Keyboard" (type: KEYBOARD)
(II) USB Mouse: ps2EnableDataReporting: succeeded
Could not init font path element unix/:7100, removing from list!
Could not init font path element /usr/lib/X11/fonts/Speedo, removing from list!
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On Wed December 28 2005 17:01, John David Anglin wrote:
> > Try installing xserver-xorg. That should help.
> 
> Still no joy.
> 
> Dave
Pardon the dumb question----

> Could not init font path element unix/:7100, removing from list!
> Could not init font path element /usr/lib/X11/fonts/Speedo, removing from list!
>
Is xfs (X font server) still running?

Mike
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> Pardon the dumb question----
> 
> > Could not init font path element unix/:7100, removing from list!
> > Could not init font path element /usr/lib/X11/fonts/Speedo, removing from list!
> >
> Is xfs (X font server) still running?

root@hiauly6:/var/log# ps -ef|grep xfs
root      2159     1  0 Dec26 ?        00:00:00 /usr/bin/X11/xfs -daemon

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> I tried myself with current kernel.
> 
> - 32bit kernel on c3k works for me. Can you try again with current kernel ?

I'm currently running 2.6.15-rc6-pa1 but 2.6.8.1-pa11 doesn't work
either.  2.6.8.1-pa11 used to work ok.

> - 64bit kernel on my c3k crashes, but this doesn't seem (with strace) related to stifb. Maybe this is due to some mmap() problems ?

I haven't every been successful in running a 64bit kernel either.

> Sorry, no better idea...

This is what I see when I run startx:

OS Kernel: Linux version 2.6.15-rc6-pa1 (bame@palinux) (gcc version 3.3.5 (Debian 1:3.3.5-13)) #1 Mon Dec 19 15:13:14 MST 2005
Markers: (--) probed, (**) from config file, (==) default setting,
         (++) from command line, (!!) notice, (II) informational,
	 (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/XFree86.0.log", Time: Wed Dec 28 16:26:26 2005
(==) Using config file: "/etc/X11/XF86Config-4"
(EE) FBDEV(0): FBIOPAN_DISPLAY: Invalid argument
Could not init font path element unix/:7100, removing from list!

waiting for X server to shut down

I'm puzzled about the font path element as the font server is running.
The stuff in the log file seems ok:

...
(II) Setting vga for screen 0.
(**) FBDEV(0): Depth 8, (--) framebuffer bpp 8
(==) FBDEV(0): Default visual is PseudoColor
(==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDEV(0): hardware: stifb (video memory: 2048kB)
(II) FBDEV(0): checking modes against framebuffer device...
(II) FBDEV(0):  mode "1280x1024" ok
(II) FBDEV(0): checking modes against monitor...
(--) FBDEV(0): Virtual size is 1280x1024 (pitch 1280)
(**) FBDEV(0):  Default mode "1280x1024": 108.0 MHz (scaled from 0.0 MHz), 64.0
kHz, 60.0 Hz
(II) FBDEV(0): Modeline "1280x1024"  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync
(++) FBDEV(0): DPI set to (100, 100)
(**) FBDEV(0): using shadow framebuffer
...
(EE) FBDEV(0): FBIOPAN_DISPLAY: Invalid argument
(==) FBDEV(0): Backing store disabled
(**) Option "dpms"
(**) FBDEV(0): DPMS enabled
(==) RandR enabled
(II) Setting vga for screen 0.
...
(II) USB Mouse: ps2EnableDataReporting: succeeded
Could not init font path element unix/:7100, removing from list!

I think things broke with the 6.8.2.dfsg.1 update but I'm not sure.

dave@hiauly6:~$ dpkg -l xserver-common
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  xserver-common 6.8.2.dfsg.1-7 files and utilities common to all X servers
dave@hiauly6:~$ dpkg -l xserver-xfree86
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  xserver-xfree8 4.3.0.dfsg.1-1 the XFree86 X server

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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Xref: news.gmane.org gmane.linux.ports.parisc:23298

2 pence idea ;?

John David Anglin wrote:
> Hi Helge,
> 
> 
>>On Monday 26 December 2005 22:34, John David Anglin wrote:
>>
>>>X no longer starts on my c3k using unstable.  The problem seems
>>>to be:
>>>
>>>(EE) FBDEV(0): FBIOPAN_DISPLAY: Invalid argument
>>>
this is definitely the pb?

>>>XF86Config-4 hasn't changed for at least a year.  Any ideas?
>>
>>I assume your screen resolution changed. 
> 
> 
> No.  I've had the following entries in XF86Config-4 since Sep 2003:
> 
> Section "Device"
>         Identifier      "HP Visualize-EG"
> 	Driver          "fbdev"
> 	Option          "UseFBDev"              "true"
> EndSection
> 
> Section "Monitor"
> 	Identifier      "NEC LCD1980SX"
> 	HorizSync       30-107
> 	VertRefresh     50-85
> 	Option          "DPMS"
> EndSection
> 
> Section "Screen"
> 	Identifier      "Default Screen"
> 	Device          "HP Visualize-EG"
> 	Monitor         "NEC LCD1980SX"
> 	DefaultDepth    8
> 	SubSection "Display"
> 		Depth           8
> 		Modes           "1280x1024"
> 	EndSubSection
> EndSection
> 
> 
>>Maybe new monitor/setup or different graphic card is detected first ?
> 
> 
> Possibly, the machine has two graphics cards.  However, the presence of
> the A1262A never caused a problem before:
> 
> STI GSC/PCI core graphics driver Version 0.9a
> STI PCI graphic ROM found at f6000000 (64 kB), fb at f8000000 (32 MB)
>     id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
>     graphics card name: PCI_GRAFFITIX1280
> STI PCI graphic ROM found at f7000000 (2048 kB), fb at fa000000 (32 MB)
>     id 35acda30-9a02587, conforms to spec rev. 8.0d
>     graphics card name: A1262A
> sticon: Initializing STI text console.
> Console: switching to colour STI console 160x64
> Console: switching to colour frame buffer device 160x64
> fb0: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIX1280, id: 2d08c0a7, mmio: 0xf8100000
> stifb: 'A1262A' (id: 0x35acda30) not supported.
> 
I just remember of a pb encountered a long time ago: is your pdc settings set well the graphic device to PCI_GRAFFITIX1280?

How could we check that fb0 point well to this PCI_GRAFFITIX1280 and not to A1262A?

sorry no such hw available to help more,
	Joel



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Xref: news.gmane.org gmane.linux.ports.parisc:23299

> >>On Monday 26 December 2005 22:34, John David Anglin wrote:
> >>
> >>>X no longer starts on my c3k using unstable.  The problem seems
> >>>to be:
> >>>
> >>>(EE) FBDEV(0): FBIOPAN_DISPLAY: Invalid argument
> >>>
> this is definitely the pb?

Helge says this message has always been there, so I don't know.

> I just remember of a pb encountered a long time ago: is your pdc settings set well the graphic device to PCI_GRAFFITIX1280?

Yes
> 
> How could we check that fb0 point well to this PCI_GRAFFITIX1280 and not to A1262A?

I was concerned about this so I added the BusID line:

Section "Device"
        Identifier      "PCI_GRAFFITIX1280"
	Driver          "fbdev"
	BusID           "PCI:2:3:0"
	Option          "UseFBDev"              "true"
EndSection

I see this in the Xorg.0.log:

(--) PCI: (2:3:0) Hewlett-Packard Company A4977A Visualize EG rev 3, Mem @ 0xf80
00000/25, BIOS @ 0xf6000000/16
(--) PCI: (3:2:0) Hewlett-Packard Company Visualize FX4 rev 2, Mem @ 0xfa000000/
25, BIOS @ 0xf7000000/21
...
(**) FBDEV(0): claimed PCI slot 2:3:0
(II) FBDEV(0): using default device
...
(II) Setting vga for screen 0.
(**) FBDEV(0): Depth 8, (--) framebuffer bpp 8
(==) FBDEV(0): Default visual is PseudoColor
(==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDEV(0): hardware: stifb (video memory: 2048kB)
(II) FBDEV(0): checking modes against framebuffer device...
(II) FBDEV(0):  mode "1280x1024" ok
(II) FBDEV(0): checking modes against monitor...
(--) FBDEV(0): Virtual size is 1280x1024 (pitch 1280)
(**) FBDEV(0):  Default mode "1280x1024": 108.0 MHz (scaled from 0.0 MHz), 64.0 kHz, 60.0 Hz
(II) FBDEV(0): Modeline "1280x1024"  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync
(++) FBDEV(0): DPI set to (100, 100)
(**) FBDEV(0): using shadow framebuffer
(II) resource ranges after preInit:
	[0] 0   0       0xf8000000 - 0xf9ffffff (0x2000000) MX[B]
	[1] -1  0       0xffffffff - 0xffffffff (0x1) MX[B]
	[2] -1  0       0x00000000 - 0x00000000 (0x1) MX[B]
	[3] -1  0       0xf4800000 - 0xf480007f (0x80) MX[B]
	[4] -1  0       0xf4000000 - 0xf4001fff (0x2000) MX[B]
	[5] -1  0       0xf4004000 - 0xf40043ff (0x400) MX[B]
	[6] -1  0       0xf4002000 - 0xf4003fff (0x2000) MX[B]
	[7] -1  0       0xf4005000 - 0xf40053ff (0x400) MX[B]
	[8] -1  0       0xf4006000 - 0xf4006fff (0x1000) MX[B]
	[9] -1  0       0xf4007000 - 0xf4007fff (0x1000) MX[B]
	[10] -1 0       0xf4009000 - 0xf400900f (0x10) MX[B]
	[11] -1 0       0xf400a000 - 0xf400a00f (0x10) MX[B]
	[12] -1 0       0xf400b000 - 0xf400b00f (0x10) MX[B]
	[13] -1 0       0xf400c000 - 0xf400c1ff (0x200) MX[B]
	[14] -1 0       0xf4008000 - 0xf40083ff (0x400) MX[B]
	[15] -1 0       0xf7000000 - 0xf71fffff (0x200000) MX[B](B)
	[16] -1 0       0xfa000000 - 0xfbffffff (0x2000000) MX[B](B)
	[17] -1 0       0xf6000000 - 0xf600ffff (0x10000) MX[B](B)
        [18] -1 0       0xf8000000 - 0xf9ffffff (0x2000000) MX[B](B)
	[19] 0  0       0x000a0000 - 0x000affff (0x10000) MS[B]
	[20] 0  0       0x000b0000 - 0x000b7fff (0x8000) MS[B]
	[21] 0  0       0x000b8000 - 0x000bffff (0x8000) MS[B]
	[22] -1 0       0x0000ffff - 0x0000ffff (0x1) IX[B]
	[23] -1 0       0x00000000 - 0x00000000 (0x1) IX[B]
	[24] -1 0       0x00002000 - 0x0000207f (0x80) IX[B]
	[25] -1 0       0x00000800 - 0x000008ff (0x100) IX[B]
	[26] -1 0       0x00000900 - 0x000009ff (0x100) IX[B]
	[27] -1 0       0x00000a00 - 0x00000a0f (0x10) IX[B]
	[28] -1 0       0x00000b00 - 0x00000b03 (0x4) IX[B]
	[29] -1 0       0x00000d00 - 0x00000d07 (0x8) IX[B]
	[30] -1 0       0x00000e00 - 0x00000e03 (0x4) IX[B]
	[31] -1 0       0x00000f00 - 0x00000f07 (0x8) IX[B]
	[32] -1 0       0x00001000 - 0x0000107f (0x80) IX[B]
	[33] 0  0       0x000003b0 - 0x000003bb (0xc) IS[B]
	[34] 0  0       0x000003c0 - 0x000003df (0x20) IS[B]
(EE) FBDEV(0): FBIOPAN_DISPLAY: Invalid argument
(==) FBDEV(0): Backing store disabled
(**) Option "dpms"
(**) FBDEV(0): DPMS enabled
(==) RandR enabled
(II) Setting vga for screen 0.
(**) Generic Keyboard: Core Keyboard
...
(II) USB Mouse: ps2EnableDataReporting: succeeded
Could not init font path element unix/:7100, removing from list!
Could not init font path element /usr/lib/X11/fonts/Speedo, removing from list!

So, the two strange things are the FBIOPAN_DISPLAY and the font server
messages.  I killed and restarted xfs.  That didn't fix the problem.
It seems the X server just exits.

The tests that I did yesterday were done remotely and the monitor was
off at the time.  I noticed one debian bug report about X not starting
when the monitor was off.  However, I had the same problem on the 26th
when I was trying to use the console.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > >>On Monday 26 December 2005 22:34, John David Anglin wrote:
> > >>
> > >>>X no longer starts on my c3k using unstable.  The problem seems
> > >>>to be:

Problem solved.  Somehow kde (kdm) had been purged and there was no
longer a window manger installed.  I'm sure I didn't manually delete
it.

I tried to reinstall kde but it currently can't be installed using
apt-get due to unmet dependencies.  Possibly, this has something to do
with how it got purged.

I installed gnome and X now starts.

Thanks for all the help,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Thibaut VARENE <T-Bone@parisc-linux.org>
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Subject: [parisc-linux] sym2 changes between 2.6.12 and 2.6.15
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Xref: news.gmane.org gmane.linux.ports.parisc:23301

Hi all

I recently got 2.6.15-rc7-pa0 booting up on my rp3440 and noticed sym
wasn't initializing HDs as it previously was, in fact it was
initializing in Narrow mode instead of wide:

with 2.6.12-rc6-pa1:
 target0:0:0: tagged command queuing enabled, command queue depth 16.
 target0:0:0: Beginning Domain Validation
 target0:0:0: asynchronous.
WIDTH IS 1
 target0:0:0: wide asynchronous.
 target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
 target0:0:0: Ending Domain Validation

with 2.6.15-rc7-pa0:
 target0:0:0: tagged command queuing enabled, command queue depth 16.
 target0:0:0: Beginning Domain Validation
 target0:0:0: asynchronous.
 target0:0:0: FAST-40 SCSI 40.0 MB/s ST (25 ns, offset 31)
 target0:0:0: Domain Validation skipping write tests
 target0:0:0: Ending Domain Validation

in both cases, though, cat /sys/class/spi_host/host0/signalling says "LVD"

jejb suggested the following: in 2.6.15-rc7-pa0:
magnum:~# cat /sys/class/spi_transport/target0\:0\:0/dt
0
magnum:~# echo 1 > /sys/class/spi_transport/target0\:0\:0/dt
  target0:0:0: FAST-40 WIDE SCSI 80.0 MB/s DT (25 ns, offset 31)
cat /sys/class/spi_transport/target0\:0\:0/dt
1
magnum:~# cat /sys/class/spi_transport/target0\:0\:0/period
25
echo "12.5" >  /sys/class/spi_transport/target0\:0\:0/period
  target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)

but then, alas:
magnum:~# echo 1 > /sys/class/spi_transport/target0\:0\:0/revalidate
 target0:0:0: Beginning Domain Validation
 target0:0:0: asynchronous.
 target0:0:0: FAST-40 SCSI 40.0 MB/s ST (25 ns, offset 31)
 target0:0:0: Domain Validation skipping write tests
 target0:0:0: Ending Domain Validation

magnum:~# cat /sys/class/spi_transport/target0\:0\:0/min_period
reserved
magnum:~# cat /sys/class/spi_transport/target0\:0\:0/max_width
0
magnum:~# echo 1 > /sys/class/spi_transport/target0\:0\:0/max_width
magnum:~# echo 1 > /sys/class/spi_transport/target0\:0\:0/revalidate
 target0:0:0: Beginning Domain Validation
 target0:0:0: asynchronous.
 target0:0:0: wide asynchronous.
 target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)
 target0:0:0: Ending Domain Validation

at which point jejb said:
<jejb> OK, it's picking up narrow as an nvram setting
<jejb> that's a new feature of the driver (believing the nvram)
<jejb> there's probably some secret PDC call we should be doing instead

complete boot logs:
http://www.pateam.org/archive/logs/dmesg_rp3440-2.6.12-rc6-pa1.txt
http://www.pateam.org/archive/logs/dmesg_rp3440.txt

HTH

T-Bone

--
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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This is a multi-part message in MIME format.

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I have an old J2240 w/ p1120 console that I was going to throw away, but
decided to load the most recent PA-RISC Linux instead.  I had loaded and
gotten it running from the PA-RISC project several years ago.  Using the
ISO's from 12/19/05 I was able to successfully install on one of the hdd's
(FWSCSI.5.0), but cannot boot to a prompt. When booting from path FWSCSI.5.0
I get the 2 Tux images, a long list of console output, and get the point
below and it freezes.  I have tried booting using a serial console, but
cannot get connected to the serial port.  Any ideas on how to proceed from
here?

 

End of console output:

----------------------------------------------------------------------------
--------------------------------------------------------

Starting hotplug subsystem:

            pci

                        tulip: already loaded

defxx.c:v1.06 2003/08/04 Lawrence V. Stephani and others

fddi%d: DEFPA at I/O addr = 0x100, IRQ = 96, Hardware addr =
58-B0-60-00-00-00

----------------------------------------------------------------------------
---------------------------------------------------------

 

Other info.:

SESCSI.3.0 = HP C1537A Tape

SESCSI.2.0 = Toshiba CD-ROM (used for install)

FWSCSI.6.0 = IBM HDD (HP-UX 10.0)

FWSCSI.5.0 = IBM HDD (Linux)

 

 

 

 

 


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<div class=3DSection1>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I have an old J2240 w/ p1120 console that I was going =
to
throw away, but decided to load the most recent PA-RISC Linux =
instead.&nbsp; I
had loaded and gotten it running from the PA-RISC project several years
ago.&nbsp; Using the ISO&#8217;s from 12/19/05 I was able to =
successfully
install on one of the hdd&#8217;s (FWSCSI.5.0), but cannot boot to a =
prompt.
When booting from path FWSCSI.5.0 I get the 2 Tux images, a long list of
console output, and get the point below and it freezes.&nbsp; I have =
tried
booting using a serial console, but cannot get connected to the serial
port.&nbsp; Any ideas on how to proceed from =
here?<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>End of console output:<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>------------------------------------------------------=
-------------------------------------------------------------------------=
-----<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Starting hotplug =
subsystem:<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; pci<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; tulip:
already loaded<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>defxx.c:v1.06 2003/08/04 Lawrence V. Stephani and =
others<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>fddi%d: DEFPA at I/O addr =3D 0x100, IRQ =3D 96, =
Hardware addr =3D
58-B0-60-00-00-00<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>------------------------------------------------------=
-------------------------------------------------------------------------=
------<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Other info.:<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>SESCSI.3.0 =3D HP C1537A =
Tape<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>SESCSI.2.0 =3D Toshiba CD-ROM (used for =
install)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>FWSCSI.6.0 =3D IBM HDD (HP-UX =
10.0)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>FWSCSI.5.0 =3D IBM HDD =
(Linux)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

</div>

</body>

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On Fri, Dec 30, 2005 at 10:51:22AM -0500, Craig D. Lansing wrote:
> defxx.c:v1.06 2003/08/04 Lawrence V. Stephani and others
> fddi%d: DEFPA at I/O addr = 0x100, IRQ = 96, Hardware addr = 58-B0-60-00-00-00

I'm going to take a stab and say this is your problem. You're likely going
to see a HPMC chassis code however this machine displays such a thing (look
up the LED code, or it should display it right on an LCD if it was one.)

[Thanks for identifying a piece of non-working hardware.]

To work around this, you have two options:

	1 - Remove the expansion card, if possible.

	2 - Boot single user, (append single to the PALO/IPL command line)
		2.1 - Edit/create /etc/hotplug/blacklist.d/parisc and
			add the module name (probably defxx) to the file.

If other modules give you grief, repeat the step to blacklist them.

I'll make sure this module doesn't get built into the kernel, the driver
is probably written non-portably, and thus fails miserably on 'odd'
hardware like parisc.

Cheers,
	Kyle
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Subject: RE: [parisc-linux] J2240 - Almost there....
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I tried adding "single" to various parts of the PALO command line.  No luck.
Since the error at least looks like it is related to the FDDI card, I
re-installed using the other NIC as my primary (eth1).  No difference.

The LCD just keeps cycling through...

FLT 5108.8-2-32
FLT 5408.8-2-32
FLT 5505.8-2-32
FLT CBF4.8-2-32
FLT CBFC.8-2-32
FLT CBF0.8-2-32


The system is in my den and not very accessible to take apart and start
pulling cards.

I guess I should have gone with my original plan to load this thing in my
truck and haul it to the dump, but now I'm determined to make it work.  Any
other ideas?



-----Original Message-----
From: Kyle McMartin [mailto:kyle@mcmartin.ca] 
Sent: Friday, December 30, 2005 3:09 PM
To: Craig D. Lansing
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] J2240 - Almost there....

On Fri, Dec 30, 2005 at 10:51:22AM -0500, Craig D. Lansing wrote:
> defxx.c:v1.06 2003/08/04 Lawrence V. Stephani and others
> fddi%d: DEFPA at I/O addr = 0x100, IRQ = 96, Hardware addr =
58-B0-60-00-00-00

I'm going to take a stab and say this is your problem. You're likely going
to see a HPMC chassis code however this machine displays such a thing (look
up the LED code, or it should display it right on an LCD if it was one.)

[Thanks for identifying a piece of non-working hardware.]

To work around this, you have two options:

	1 - Remove the expansion card, if possible.

	2 - Boot single user, (append single to the PALO/IPL command line)
		2.1 - Edit/create /etc/hotplug/blacklist.d/parisc and
			add the module name (probably defxx) to the file.

If other modules give you grief, repeat the step to blacklist them.

I'll make sure this module doesn't get built into the kernel, the driver
is probably written non-portably, and thus fails miserably on 'odd'
hardware like parisc.

Cheers,
	Kyle

_______________________________________________
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] sym2 changes between 2.6.12 and 2.6.15
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On Thu, Dec 29, 2005 at 07:16:19PM +0100, Thibaut VARENE wrote:
> I recently got 2.6.15-rc7-pa0 booting up on my rp3440 and noticed sym
> wasn't initializing HDs as it previously was, in fact it was
> initializing in Narrow mode instead of wide:

You should probably try kernels either side of:

http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2005-December/036342.html

to be sure we're debugging the right problem.  Or take out the
"         spi_max_width(tp->starget) = tp->usr_width;" line from sym_glue.c

> at which point jejb said:
> <jejb> OK, it's picking up narrow as an nvram setting
> <jejb> that's a new feature of the driver (believing the nvram)
> <jejb> there's probably some secret PDC call we should be doing instead

But we already are -- see sym_read_parisc_pdc() and sym_nvram_setup_host().

Could you dump the contents of nvram->data.parisc ?

I have a feeling we're not doing something right though, because we
should only be setting width on a 9000/785 (ie C3000-family).

Debugging needed, please!
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On Fri, Dec 30, 2005 at 10:16:59PM -0500, Craig D. Lansing wrote:
> I tried adding "single" to various parts of the PALO command line.  No luck.
> Since the error at least looks like it is related to the FDDI card, I
> re-installed using the other NIC as my primary (eth1).  No difference.
>

Bah. Instead of single use "init=/bin/sh" and run mount -o remount,rw /
to remount your root fs read-write, then follow the same step.

Definitely sounds like an HPMC because of a bad driver. What types
of expansion card do you have in that thing?

[You really shouldn't just throw it out, it's quite a nice box...]

Cheers,
	Kyle 
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On Fri, 2005-12-30 at 20:18 -0700, Matthew Wilcox wrote:
> > <jejb> OK, it's picking up narrow as an nvram setting
> > <jejb> that's a new feature of the driver (believing the nvram)
> > <jejb> there's probably some secret PDC call we should be doing instead
> 
> But we already are -- see sym_read_parisc_pdc() and sym_nvram_setup_host().
> 
> Could you dump the contents of nvram->data.parisc ?
> 
> I have a feeling we're not doing something right though, because we
> should only be setting width on a 9000/785 (ie C3000-family).
> 
> Debugging needed, please!

Debugging only needed if you can tell me how nvram->data.parisc gets
plugged into tp->usr_period and tp->usr_width which you use to set up
the max values in slave configure.  These seem to be uninitialised for
the PDC methods (only for the NVRAM or TEKRAM).

James


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Subject: RE: [parisc-linux] J2240 - Almost there....
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That worked, Thanx!!!!  I added both defxx and DEFPA to
/etc/hotplug/blacklist.d/parisc to be safe.

I am now able to boot and have completed the install.

$uname -a
Linux howlin 2.6.8-2-32-smp #1 SMP Wed Aug 24 17:55:41 UTC 2005 parisc
GNU/Linux

OK, I have a little work to do with the h/w clock, but it's a start.

As far as what cards (or anything else) are in there I don't really remember
and it is not in a really good place to access the rear panel at all :-(
I'm sure of 2x CPUs, 2 FWSCSI 9GB HDD, DDS 3 Tape, Toshiba CD-ROM, and
probably redundant Ethernet/FDDI cards.  Unfortunately, the system + console
on top of it weight in at what feels like a ton :-)  If I could remember the
root password (ergh!), I could poke around in SAM on the HP-UX partition.
It boots to CDE, but I can't remember a single login.  The J2240 was a gift
from a client who was an HP shop and was bought by a BigBlue company.  They
gradually had to get rid of their HP equipment.  They called me one day
several years ago and said they were going to throw away this J2240 and the
HP p1120 console (brand new... 1 day old) and I could have it... so I took
it.  Be careful what you ask for.........


-----Original Message-----
From: Kyle McMartin [mailto:kyle@mcmartin.ca] 
Sent: Friday, December 30, 2005 10:31 PM
To: Craig D. Lansing
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] J2240 - Almost there....

On Fri, Dec 30, 2005 at 10:16:59PM -0500, Craig D. Lansing wrote:
> I tried adding "single" to various parts of the PALO command line.  No
luck.
> Since the error at least looks like it is related to the FDDI card, I
> re-installed using the other NIC as my primary (eth1).  No difference.
>

Bah. Instead of single use "init=/bin/sh" and run mount -o remount,rw /
to remount your root fs read-write, then follow the same step.

Definitely sounds like an HPMC because of a bad driver. What types
of expansion card do you have in that thing?

[You really shouldn't just throw it out, it's quite a nice box...]

Cheers,
	Kyle 

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On Sat, Dec 31, 2005 at 11:21:48AM -0500, Craig D. Lansing wrote:
> If I could remember the
> root password (ergh!), I could poke around in SAM on the HP-UX partition.

You don't need to remember the root login.
Answer "Y" to "Interact with ISL" type "hpux -is" at the ISL prompt.

You'll be root in single user mode.

"There is no such thing as computer security without physical security."

grant
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Duh!!!  Can you tell that it has been a long time since I've had a "real"
computer to play with?

Anyway, I now have a dual-boot (HP-UX 10 / Debian Linux) J2240.

Here's what SAM thinks is in the system:
Toshiba CD-ROM SCSI drive
IBM DDRS-39130WS (9GB disk)
IBM DDRS-39130WS (9GB disk)
FDDI (lan1)
100Base-T (lan0)
Cards
	Built-in RS-232 Interface
	Ultra2 Wide SCSI
	Built-in Parallel Interface
	Built-in Keyboard/Mouse
	Built-in RS-232 Interface (yes, another one)
Device List
	I/O Adapter
	PCI Bus Bridge - GSCtoPCI
	PCI(10110019) -- 3
	PCI FDDI Adapter
	PCI Bus Bridge - GSCtoPCI
	Ultra2 Wide SCSI
	IBM DDRS-39130WS
	IBM DDRS-39130WS
	Initiator
	PCI(10110019) -- Built-in #2
	Core I/O Adapter
	Built-in Parallel Interface
	Audio Interface
	Built-in SCSI
	Toshiba CD-ROM SCSI Drive
	C1537A 12 GB DDS3 Data Compression Tape Drive
	Initiator
	Built-in Keyboard/Mouse
	I/O Adapter
	PCI Bus Bridge - GSCtoPCI
	PCI(103c1005) -- 0
	Built-in RS-232 Interface
	Processor
	Processor
	Memory
		

Thanks for the help!!!!


-----Original Message-----
From: Grant Grundler [mailto:grundler@parisc-linux.org] 
Sent: Saturday, December 31, 2005 1:08 PM
To: Craig D. Lansing
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] J2240 - Almost there....

On Sat, Dec 31, 2005 at 11:21:48AM -0500, Craig D. Lansing wrote:
> If I could remember the
> root password (ergh!), I could poke around in SAM on the HP-UX partition.

You don't need to remember the root login.
Answer "Y" to "Interact with ISL" type "hpux -is" at the ISL prompt.

You'll be root in single user mode.

"There is no such thing as computer security without physical security."

grant

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On Sat, Dec 31, 2005 at 11:21:06PM -0500, Craig D. Lansing wrote:
> Duh!!!  Can you tell that it has been a long time since I've had a "real"
> computer to play with?
> 
> Anyway, I now have a dual-boot (HP-UX 10 / Debian Linux) J2240.
> 
> Here's what SAM thinks is in the system:

"ioscan -fk" is the preferred output and I can
better understand what is in the box.
I don't understand what's really built-in or add-on
with the SAM output.

thanks,
grant
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On 1/1/06, Grant Grundler <grundler@parisc-linux.org> wrote:
> On Sat, Dec 31, 2005 at 11:21:06PM -0500, Craig D. Lansing wrote:
> > Duh!!!  Can you tell that it has been a long time since I've had a "rea=
l"
> > computer to play with?
> >
> > Anyway, I now have a dual-boot (HP-UX 10 / Debian Linux) J2240.
> >
> > Here's what SAM thinks is in the system:
>
> "ioscan -fk" is the preferred output and I can
> better understand what is in the box.
> I don't understand what's really built-in or add-on
> with the SAM output.

And while you're at it, i'd love to have the output of 'cat
/proc/cpuinfo' 'cat /proc/iomem' 'cat /proc/ioports' 'cat
/proc/interrupts/' and 'dmesg' from Linux to add to this growing list
:
http://www.pateam.org/archive/logs/ ;)

Thx and happy new year to every one!

T-Bone

--
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Xref: news.gmane.org gmane.linux.ports.parisc:23315

I finally got the getty to work on HP-UX.  Here's the ioscan -fk output:

Class       I  H/W Path      Driver      S/W State   H/W Type
Description
============================================================================
==
bc          0                root        CLAIMED     BUS_NEXUS    
bc          1  8             ccio        CLAIMED     BUS_NEXUS    I/O
Adapter
ba          0  8/0           GSCtoPCI    CLAIMED     BUS_NEXUS    PCI Bus
Bridge
 - GSCtoPCI
unknown    -1  8/0/3/0                   UNCLAIMED   UNKNOWN
PCI(10110019) 
-- 3
lan         1  8/0/4/0       fddi4       CLAIMED     INTERFACE    PCI FDDI
Adapt
er
tty         0  8/0/63        asio0       CLAIMED     INTERFACE    Built-in
RS-23
2C
ba          1  8/4           GSCtoPCI    CLAIMED     BUS_NEXUS    PCI Bus
Bridge
 - GSCtoPCI
ext_bus     0  8/4/19/0      c720        CLAIMED     INTERFACE    Ultra2
Wide SC
SI
target      0  8/4/19/0.5    tgt         CLAIMED     DEVICE       
disk        0  8/4/19/0.5.0  sdisk       CLAIMED     DEVICE       IBM
DDRS-3
9130WS
target      1  8/4/19/0.6    tgt         CLAIMED     DEVICE       
disk        1  8/4/19/0.6.0  sdisk       CLAIMED     DEVICE       IBM
DDRS-3
9130WS
target      2  8/4/19/0.7    tgt         CLAIMED     DEVICE       
ctl         0  8/4/19/0.7.0  sctl        CLAIMED     DEVICE       Initiator
lan         0  8/4/20/0      btlan3      CLAIMED     INTERFACE
PCI(10110019) 
-- Built-in #2
ba          2  8/12          bus_adapter CLAIMED     BUS_NEXUS    Core I/O
Adapt
er
ext_bus     2  8/12/0        CentIf      CLAIMED     INTERFACE    Built-in
Paral
lel Interface
audio       0  8/12/1        audio       CLAIMED     INTERFACE    Built-in
Audio

ext_bus     1  8/12/5        c720        CLAIMED     INTERFACE    Built-in
SCSI
target      3  8/12/5.2      tgt         CLAIMED     DEVICE       
disk        2  8/12/5.2.0    sdisk       CLAIMED     DEVICE       TOSHIBA
CD-ROM
 XM-5701TA
target      4  8/12/5.3      tgt         CLAIMED     DEVICE       
tape        0  8/12/5.3.0    stape       CLAIMED     DEVICE       HP
C1537A

target      5  8/12/5.7      tgt         CLAIMED     DEVICE       
ctl         1  8/12/5.7.0    sctl        CLAIMED     DEVICE       Initiator
ps2         0  8/12/7        ps2         CLAIMED     INTERFACE    Built-in
Keybo
ard/Mouse
bc          2  10            ccio        CLAIMED     BUS_NEXUS    I/O
Adapter
ba          3  10/4          GSCtoPCI    CLAIMED     BUS_NEXUS    PCI Bus
Bridge
 - GSCtoPCI
graphics    0  10/4/0/0      graph3      CLAIMED     INTERFACE
PCI(103c1005) 
-- 0
tty         1  10/4/63       asio0       CLAIMED     INTERFACE    Built-in
RS-23
2C
processor   0  32            processor   CLAIMED     PROCESSOR    Processor
processor   1  34            processor   CLAIMED     PROCESSOR    Processor
memory      0  49            memory      CLAIMED     MEMORY       Memory

-----Original Message-----
From: Grant Grundler [mailto:grundler@parisc-linux.org] 
Sent: Sunday, January 01, 2006 1:33 AM
To: Craig D. Lansing
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] J2240 - Almost there....

On Sat, Dec 31, 2005 at 11:21:06PM -0500, Craig D. Lansing wrote:
> Duh!!!  Can you tell that it has been a long time since I've had a "real"
> computer to play with?
> 
> Anyway, I now have a dual-boot (HP-UX 10 / Debian Linux) J2240.
> 
> Here's what SAM thinks is in the system:

"ioscan -fk" is the preferred output and I can
better understand what is in the box.
I don't understand what's really built-in or add-on
with the SAM output.

thanks,
grant

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Xref: news.gmane.org gmane.linux.ports.parisc:23316

Got this mostly together, but I'm too lazy/etc to test...

Anyone want to check that,
	1 - I'm correctly doing the ldi with the right arg #. I suppose
	    this would be easier if I just used a named input.
	2 - What to do about errno setting in the syscall return.

syscall-arch.h on most other ports includes the syscall numbers, but
it seems ours already includes them, so I haven't. For reference they're
215->219 iirc.

I glanced at the glibc src to derive the needed macros, but it wasn't
cribbed from there, so I don't think there's any licensing issues.

Oh, I just objdump'd it, and the delay slot of __io_get_events has
ldi d9, %r20 in it, which looks to be the right syscall nr. So the
resulting lib probably works, but the harness doesn't compile and I'm
too lazy to look into it.

Anyways, enjoy.

	Kyle

--- a/debian/control	2006-01-02 22:33:58.000000000 -0500
+++ b/debian/control	2006-01-02 22:26:57.000000000 -0500
@@ -7,7 +7,7 @@
 
 Package: libaio
 Section: libs
-Architecture: i386 ia64 s390 alpha powerpc
+Architecture: i386 ia64 s390 alpha powerpc hppa
 Depends:
 Description: kernel aio access library
  This library enables userspace to use kernel asynchronous I/O system
diff -Nur a/src/libaio.h b/src/libaio.h
--- a/src/libaio.h	2005-04-01 15:31:32.000000000 -0500
+++ b/src/libaio.h	2006-01-02 22:01:10.000000000 -0500
@@ -60,7 +60,7 @@
 #define PADDED(x, y)	unsigned y; x
 #define PADDEDptr(x,y)	x
 #define PADDEDul(x, y)	unsigned long x
-#elif defined(__PPC__)  /* big endian, 32 bits */
+#elif defined(__PPC__) || defined(__hppa__)  /* big endian, 32 bits */
 #define PADDED(x, y)	unsigned y; x
 #define PADDEDptr(x, y)	unsigned y; x
 #define PADDEDul(x, y)	unsigned y; unsigned long x
diff -Nur a/src/syscall-parisc.h b/src/syscall-parisc.h
--- a/src/syscall-parisc.h	1969-12-31 19:00:00.000000000 -0500
+++ b/src/syscall-parisc.h	2006-01-02 22:26:17.000000000 -0500
@@ -0,0 +1,81 @@
+#define __syscall_nr(nr, type, name, args...)				\
+	unsigned long __sc_ret;						\
+	{								\
+		__sc_loadargs_##nr(name, args);				\
+		__asm__ __volatile__					\
+			("	ble  0x100(%%sr2, %%r0)\n"		\
+			 "	ldi  %1, %%r20\n"			\
+			: "=r" (__sc_res)				\
+			: "i" (__NR_##name), __sc_asm_input_##nr	\
+			: "memory", "%r1", "%r2", "%r20", "%r29",	\
+			  "%r31" __sc_clob_args_##nr			\
+		);							\
+		__sc_ret = (long)__sc_res;				\
+	}								\
+	if ((unsigned long)__sc_ret >= (unsigned long)-4095) {		\
+		__sc_ret = -1;						\
+	}								\
+	return __sc_ret
+
+#define __sc_loadargs_0(name, dummy...)					\
+	register unsigned long __sc_res __asm__("r28") = __NR_##name
+#define __sc_loadargs_1(name, arg1)					\
+	__sc_loadargs_0(name);						\
+	register unsigned long __sc_r26 __asm__("r26") = (unsigned long) (arg1)
+#define __sc_loadargs_2(name, arg1, arg2)				\
+	__sc_loadargs_1(name, arg1);					\
+	register unsigned long __sc_r25 __asm__("r25") = (unsigned long) (arg2)
+#define __sc_loadargs_3(name, arg1, arg2, arg3)				\
+	__sc_loadargs_2(name, arg1, arg2);				\
+	register unsigned long __sc_r24 __asm__("r24") = (unsigned long) (arg3)
+#define __sc_loadargs_4(name, arg1, arg2, arg3, arg4)			\
+	__sc_loadargs_3(name, arg1, arg2, arg3);			\
+	register unsigned long __sc_r23 __asm__("r23") = (unsigned long) (arg4)
+#define __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5)		\
+	__sc_loadargs_4(name, arg1, arg2, arg3, arg4);			\
+	register unsigned long __sc_r22 __asm__("r22") = (unsigned long) (arg5)
+
+#define __sc_asm_input_0
+#define __sc_asm_input_1 "r" (__sc_r26)
+#define __sc_asm_input_2 __sc_asm_input_1, "r" (__sc_r25)
+#define __sc_asm_input_3 __sc_asm_input_2, "r" (__sc_r24)
+#define __sc_asm_input_4 __sc_asm_input_3, "r" (__sc_r23)
+#define __sc_asm_input_5 __sc_asm_input_4, "r" (__sc_r22)
+
+#define __sc_clob_args_5
+#define __sc_clob_args_4 __sc_clob_args_5, "%r22"
+#define __sc_clob_args_3 __sc_clob_args_4, "%r23"
+#define __sc_clob_args_2 __sc_clob_args_3, "%r24"
+#define __sc_clob_args_1 __sc_clob_args_2, "%r25"
+#define __sc_clob_args_0 __sc_clob_args_1, "%r26"
+
+
+#define io_syscall1(type,fname,sname,type1,arg1)				\
+type fname(type1 arg1)							\
+{									\
+	__syscall_nr(1, type, sname, arg1);				\
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)		\
+type fname(type1 arg1, type2 arg2)					\
+{									\
+	__syscall_nr(2, type, sname, arg1, arg2);			\
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3)	\
+type fname(type1 arg1, type2 arg2, type3 arg3)				\
+{									\
+	__syscall_nr(3, type, sname, arg1, arg2, arg3);			\
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4)		\
+{									\
+	__syscall_nr(4, type, sname, arg1, arg2, arg3, arg4);		\
+}
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)	\
+{									\
+	__syscall_nr(5, type, sname, arg1, arg2, arg3, arg4, arg5);	\
+}
diff -Nur a/src/syscall.h b/src/syscall.h
--- a/src/syscall.h	2005-04-01 15:31:32.000000000 -0500
+++ b/src/syscall.h	2006-01-02 21:58:28.000000000 -0500
@@ -22,6 +22,8 @@
 #include "syscall-s390.h"
 #elif defined(__alpha__)
 #include "syscall-alpha.h"
+#elif defined(__hppa__)
+#include "syscall-parisc.h"
 #else
 #error "add syscall-arch.h"
 #endif
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Xref: news.gmane.org gmane.linux.ports.parisc:23317

Sorry that it took so long to reply.  I spent most of the day driving to /
from Washington, DC yesterday.  Re-installed and ran into problems as
follows:

1) Got gdm prompt (black&white, really large), but was able to login.  Mouse
was not recognized after that so I was "stuck" in the desktop.  I was able
to login OK in single user command line mode.

2) Re-installed after getting the actual "advanced" HP p1120 console specs
(instead of "simple").  Re-install failed due to "SMP CALL FUNCTION TIMED
OUT! (cpu=0), try ###" errors (I powered off the box after about 2000 of
these).  Rebooted and got message to run "dpkg --configure -a".  Did that
and packages installed.  The system now tries to start gdm (flickers a lot),
but ultimately just goes to a blinking cursor  When I reboot (shutdown -r 0)
I now get the "Welcome to your new Debian system" prompt.  I guess maybe I
should re-install again????

3) Networking appears to not be working, I assumed that is because of the
"blacklisted" FDDI card (defxx,DEFPA).  The box has an internal IP address
192.168.1.100 and I can't even ping it.  However, I cannot ping the box when
booted into HP-UX either (192.168.1.200).  Bad card (I tried the obvious of
another cable)????

To get the info. requsted below w/o a LAN, I "cheated" and started a getty
against a serial port, logged in via a Reflection session, and logged to an
output file... not pretty, but functional.  Sorry if this is more than you
wanted to see.  I have been unsuccessful trying to set up an entry in
/etc/inittab in HP-UX that will spawn a getty on the serial port equivalent
to ttyS0 in Linux... any pointers would be appreciated (it has been a long
time) then I can get the ioscan -fk output.

*******************************************
Linux Info
*******************************************

Debian GNU/Linux 3.1 howlin ttyS0

howlin login: 
Debian GNU/Linux 3.1 howlin ttyS0

howlin login: root
Password: 
Linux howlin 2.6.8-2-32-smp #1 SMP Wed Aug 24 17:55:41 UTC 2005 parisc
GNU/Linux

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted
by applicable law.
howlin:~#
howlin:~# cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8200 (PCX-U+)
cpu MHz         : 236.000000
model           : 9000/782/J2240
model name      : SummitHawk U+
hversion        : 0x00005b50
sversion        : 0x00000491
I-cache         : 2048 KB
D-cache         : 2048 KB (WB, 0-way associative)
ITLB entries    : 120
DTLB entries    : 120 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (16 combined) BTLB var-entr.  : 0
instruction, 0 data (0 combined)
bogomips        : 470.22
software id     : 2002047818

processor       : 1
cpu family      : PA-RISC 2.0
cpu             : PA8200 (PCX-U+)
cpu MHz         : 236.000000
model           : 9000/782/J2240
model name      : SummitHawk U+
hversion        : 0x00005b50
sversion        : 0x00000491
I-cache         : 2048 KB
D-cache         : 2048 KB (WB, 0-way associative)
ITLB entries    : 120
DTLB entries    : 120 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (16 combined) BTLB var-entr.  : 0
instruction, 0 data (0 combined)
bogomips        : 470.22
software id     : 2002047818

howlin:~# cat /proc/iomem
00000000-7fffffff : System RAM
  00000000-000009ff : PDC data (Page Zero)
  00100000-003b4fff : Kernel code
  003b5000-00513b03 : Kernel data
f0190000-f0190000 : lcd_cmd
f0190001-f0190001 : lcd_data
f1600000-f3ffffff : GSC Bus [10/]
  f1604000-f1604fff : Cujo
  f1607800-f1607807 : serial
  f1800000-f1ffffff : Cujo LMMIO 0
f4000000-f5ffffff : GSC Bus [8/]
f6000000-f7ffffff : GSC Bus [10/]
  f6000000-f7ffffff : Cujo LMMIO 1
    f6000000-f7ffffff : 0000:02:00.0
      f6100000-f64fffff : stifb mmio
      f7000000-f71fffff : stifb fb
f8000000-fff7ffff : GSC Bus [8/]
  fc000000-fc000fff : Cujo
  fc003800-fc003807 : serial
  fc004000-fc004fff : Dino [8/4]
  fc800000-fcffffff : Dino [8/4] LMMIO 0
    fc800000-fc800fff : 0000:01:13.0
      fc800000-fc800fff : sym53c8xx
    fc801000-fc8010ff : 0000:01:13.0
      fc801000-fc8010ff : sym53c8xx
    fc802000-fc80207f : 0000:01:14.0
      fc802000-fc80207f : tulip
  fd800000-fdffffff : Cujo LMMIO 0
    fd800000-fd80ffff : 0000:00:04.0
    fd810000-fd81007f : 0000:00:03.0
      fd810000-fd81007f : tulip
    fd811000-fd81107f : 0000:00:04.0
  ffd00000-ffdfffff : Lasi
    ffd00000-ffd00fff : Lasi
    ffd06000-ffd06fff : Lasi SCSI
    ffd08000-ffd08fff : GSC PS2
fff80000-fffaffff : Central Bus
  fff88000-fff88fff : U2:Uturn
  fff8a000-fff8afff : U2:Uturn
  fffa0000-fffa0fff : CPU
  fffa2000-fffa2fff : CPU
fffb0000-fffdffff : Local Broadcast
fffe0000-ffffffff : Global Broadcast
howlin:~# cat /proc/ioports
00000000-0000ffff : Cujo I/O Port
  00000080-000000ff : 0000:00:03.0
    00000080-000000ff : tulip
  00000100-0000017f : 0000:00:04.0
00010000-0001ffff : Dino I/O Port
  00010000-000100ff : 0000:01:13.0
    00010000-000100ff : sym53c8xx
  00010100-0001017f : 0000:01:14.0
    00010100-0001017f : tulip
00020000-0002ffff : Cujo I/O Port
howlin:~# cat /proc/interrupts/
cat: /proc/interrupts/: Not a directory
howlin:~# cat /proc/interrupts 
           CPU00       CPU01 
 32:     125984     124641      PARISC-CPU  timer
 33:       8458       9035      PARISC-CPU  IPI
 34:        120          0      PARISC-CPU  lasi
 35:          0       1274      PARISC-CPU  Cujo
 36:       7095          0      PARISC-CPU  Dino [8/4]
 37:          0          0      PARISC-CPU  Cujo
 69:         41          0            Lasi  GSC PS2 keyboard, GSC PS2 mouse
 86:         79          0            Lasi  lasi700
 99:          0        858            Cujo  eth0
106:          0        417            Cujo  serial
131:       7095          0      Dino [8/4]  sym53c8xx
howlin:~# dmesg
Linux version 2.6.8-2-32-smp (root@palinux) (gcc version 3.3.5 (Debian
1:3.3.5-1
3)) #1 SMP Wed Aug 24 17:55:41 UTC 2005
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005b50 00000491 00000000 00000002 7754d34a 100000f0 00000008
000000b2 00
0000b2
vers  00000501
CPUID vers 14 rev 23 (0x000001d7)
capabilities 0x2
model 9000/782/J2240
Total Memory: 2048 Mb
initrd: 4fb30000-4ffee000
initrd: reserving 3fb30000-3ffee000 (mem_max 80000000) On node 0 totalpages:
524288
  DMA zone: 524288 pages, LIFO batch:16
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
LCD display at f0190000,f0190001 registered
SMP: bootstrap CPU ID is 0
Built 1 zonelists
Kernel command line: root=/dev/sda5 HOME=/ console=tty0 sti=10/4/0/0
sti_font=VG
A8x16 TERM=linux palo_kernel=2/vmlinux
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 524288 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 262144 (order: 8, 1048576 bytes)
Memory: 2097152k available
Calibrating delay loop... 470.22 BogoMIPS Security Scaffold v1.0.0
initialized Capability LSM initialized Mount-cache hash table entries: 512
(order: 0, 4096 bytes) Brought up 1 CPUs
CPU0:  online
 domain 0: span ffffffff
  groups: 00000001 00000002 00000004 00000008 00000010 00000020 00000040
0000008 0 00000100 00000200 00000400 00000800 00001000 00002000 00004000
00008000 000100 00 00020000 00040000 00080000 00100000 00200000 00400000
00800000 01000000 02000 000 04000000 08000000 10000000 20000000 40000000
80000000
CPU1: offline
 domain 0: span ffffffff
  groups: 00000002 00000004 00000008 00000010 00000020 00000040 00000080
0000010 0 00000200 00000400 00000800 00001000 00002000 00004000 00008000
00010000 000200 00 00040000 00080000 00100000 00200000 00400000 00800000
01000000 02000000 04000 000 08000000 10000000 20000000 40000000 80000000
00000001
CPU2: offline
 domain 0: span ffffffff
  groups: 00000004 00000008 00000010 00000020 00000040 00000080 00000100
0000020 0 00000400 00000800 00001000 00002000 00004000 00008000 00010000
00020000 000400 00 00080000 00100000 00200000 00400000 00800000 01000000
02000000 04000000 08000 000 10000000 20000000 40000000 80000000 00000001
00000002
CPU3: offline
 domain 0: span ffffffff
  groups: 00000008 00000010 00000020 00000040 00000080 00000100 00000200
0000040 0 00000800 00001000 00002000 00004000 00008000 00010000 00020000
00040000 000800 00 00100000 00200000 00400000 00800000 01000000 02000000
04000000 08000000 10000 000 20000000 40000000 80000000 00000001 00000002
00000004
CPU4: offline
 domain 0: span ffffffff
  groups: 00000010 00000020 00000040 00000080 00000100 00000200 00000400
0000080 0 00001000 00002000 00004000 00008000 00010000 00020000 00040000
00080000 001000 00 00200000 00400000 00800000 01000000 02000000 04000000
08000000 10000000 20000 000 40000000 80000000 00000001 00000002 00000004
00000008
CPU5: offline
 domain 0: span ffffffff
  groups: 00000020 00000040 00000080 00000100 00000200 00000400 00000800
0000100 0 00002000 00004000 00008000 00010000 00020000 00040000 00080000
00100000 002000 00 00400000 00800000 01000000 02000000 04000000 08000000
10000000 20000000 40000 000 80000000 00000001 00000002 00000004 00000008
00000010
CPU6: offline
 domain 0: span ffffffff
  groups: 00000040 00000080 00000100 00000200 00000400 00000800 00001000
0000200 0 00004000 00008000 00010000 00020000 00040000 00080000 00100000
00200000 004000 00 00800000 01000000 02000000 04000000 08000000 10000000
20000000 40000000 80000 000 00000001 00000002 00000004 00000008 00000010
00000020
CPU7: offline
 domain 0: span ffffffff
  groups: 00000080 00000100 00000200 00000400 00000800 00001000 00002000
0000400 0 00008000 00010000 00020000 00040000 00080000 00100000 00200000
00400000 008000 00 01000000 02000000 04000000 08000000 10000000 20000000
40000000 80000000 00000
001 00000002 00000004 00000008 00000010 00000020 00000040
CPU8: offline
 domain 0: span ffffffff
  groups: 00000100 00000200 00000400 00000800 00001000 00002000 00004000
0000800 0 00010000 00020000 00040000 00080000 00100000 00200000 00400000
00800000 010000 00 02000000 04000000 08000000 10000000 20000000 40000000
80000000 00000001 00000
002 00000004 00000008 00000010 00000020 00000040 00000080
CPU9: offline
 domain 0: span ffffffff
  groups: 00000200 00000400 00000800 00001000 00002000 00004000 00008000
0001000 0 00020000 00040000 00080000 00100000 00200000 00400000 00800000
01000000 020000 00 04000000 08000000 10000000 20000000 40000000 80000000
00000001 00000002 00000
004 00000008 00000010 00000020 00000040 00000080 00000100
CPU10: offline
 domain 0: span ffffffff
  groups: 00000400 00000800 00001000 00002000 00004000 00008000 00010000
0002000 0 00040000 00080000 00100000 00200000 00400000 00800000 01000000
02000000 040000 00 08000000 10000000 20000000 40000000 80000000 00000001
00000002 00000004 00000
008 00000010 00000020 00000040 00000080 00000100 00000200
CPU11: offline
 domain 0: span ffffffff
  groups: 00000800 00001000 00002000 00004000 00008000 00010000 00020000
0004000 0 00080000 00100000 00200000 00400000 00800000 01000000 02000000
04000000 080000 00 10000000 20000000 40000000 80000000 00000001 00000002
00000004 00000008 00000 010 00000020 00000040 00000080 00000100 00000200
00000400
CPU12: offline
 domain 0: span ffffffff
  groups: 00001000 00002000 00004000 00008000 00010000 00020000 00040000
0008000 0 00100000 00200000 00400000 00800000 01000000 02000000 04000000
08000000 100000 00 20000000 40000000 80000000 00000001 00000002 00000004
00000008 00000010 00000 020 00000040 00000080 00000100 00000200 00000400
00000800
CPU13: offline
 domain 0: span ffffffff
  groups: 00002000 00004000 00008000 00010000 00020000 00040000 00080000
0010000 0 00200000 00400000 00800000 01000000 02000000 04000000 08000000
10000000 200000 00 40000000 80000000 00000001 00000002 00000004 00000008
00000010 00000020 00000 040 00000080 00000100 00000200 00000400 00000800
00001000
CPU14: offline
 domain 0: span ffffffff
  groups: 00004000 00008000 00010000 00020000 00040000 00080000 00100000
0020000 0 00400000 00800000 01000000 02000000 04000000 08000000 10000000
20000000 400000 00 80000000 00000001 00000002 00000004 00000008 00000010
00000020 00000040 00000 080 00000100 00000200 00000400 00000800 00001000
00002000
CPU15: offline
 domain 0: span ffffffff
  groups: 00008000 00010000 00020000 00040000 00080000 00100000 00200000
0040000 0 00800000 01000000 02000000 04000000 08000000 10000000 20000000
40000000 800000 00 00000001 00000002 00000004 00000008 00000010 00000020
00000040 00000080 00000 100 00000200 00000400 00000800 00001000 00002000
00004000
CPU16: offline
 domain 0: span ffffffff
  groups: 00010000 00020000 00040000 00080000 00100000 00200000 00400000
0080000 0 01000000 02000000 04000000 08000000 10000000 20000000 40000000
80000000 000000
01 00000002 00000004 00000008 00000010 00000020 00000040 00000080 00000100
00000 200 00000400 00000800 00001000 00002000 00004000 00008000
CPU17: offline
 domain 0: span ffffffff
  groups: 00020000 00040000 00080000 00100000 00200000 00400000 00800000
0100000 0 02000000 04000000 08000000 10000000 20000000 40000000 80000000
00000001 000000
02 00000004 00000008 00000010 00000020 00000040 00000080 00000100 00000200
00000 400 00000800 00001000 00002000 00004000 00008000 00010000
CPU18: offline
 domain 0: span ffffffff
  groups: 00040000 00080000 00100000 00200000 00400000 00800000 01000000
0200000 0 04000000 08000000 10000000 20000000 40000000 80000000 00000001
00000002 000000
04 00000008 00000010 00000020 00000040 00000080 00000100 00000200 00000400
00000 800 00001000 00002000 00004000 00008000 00010000 00020000
CPU19: offline
 domain 0: span ffffffff
  groups: 00080000 00100000 00200000 00400000 00800000 01000000 02000000
0400000 0 08000000 10000000 20000000 40000000 80000000 00000001 00000002
00000004 000000
08 00000010 00000020 00000040 00000080 00000100 00000200 00000400 00000800
00001 000 00002000 00004000 00008000 00010000 00020000 00040000
CPU20: offline
 domain 0: span ffffffff
  groups: 00100000 00200000 00400000 00800000 01000000 02000000 04000000
0800000 0 10000000 20000000 40000000 80000000 00000001 00000002 00000004
00000008 000000 10 00000020 00000040 00000080 00000100 00000200 00000400
00000800 00001000 00002 000 00004000 00008000 00010000 00020000 00040000
00080000
CPU21: offline
 domain 0: span ffffffff
  groups: 00200000 00400000 00800000 01000000 02000000 04000000 08000000
1000000 0 20000000 40000000 80000000 00000001 00000002 00000004 00000008
00000010 000000 20 00000040 00000080 00000100 00000200 00000400 00000800
00001000 00002000 00004 000 00008000 00010000 00020000 00040000 00080000
00100000
CPU22: offline
 domain 0: span ffffffff
  groups: 00400000 00800000 01000000 02000000 04000000 08000000 10000000
2000000 0 40000000 80000000 00000001 00000002 00000004 00000008 00000010
00000020 000000 40 00000080 00000100 00000200 00000400 00000800 00001000
00002000 00004000 00008 000 00010000 00020000 00040000 00080000 00100000
00200000
CPU23: offline
 domain 0: span ffffffff
  groups: 00800000 01000000 02000000 04000000 08000000 10000000 20000000
4000000 0 80000000 00000001 00000002 00000004 00000008 00000010 00000020
00000040 000000 80 00000100 00000200 00000400 00000800 00001000 00002000
00004000 00008000 00010 000 00020000 00040000 00080000 00100000 00200000
00400000
CPU24: offline
 domain 0: span ffffffff
  groups: 01000000 02000000 04000000 08000000 10000000 20000000 40000000
8000000 0 00000001 00000002 00000004 00000008 00000010 00000020 00000040
00000080 000001 00 00000200 00000400 00000800 00001000 00002000 00004000
00008000 00010000 00020 000 00040000 00080000 00100000 00200000 00400000
00800000
CPU25: offline
 domain 0: span ffffffff
  groups: 02000000 04000000 08000000 10000000 20000000 40000000 80000000
0000000
1 00000002 00000004 00000008 00000010 00000020 00000040 00000080 00000100
000002 00 00000400 00000800 00001000 00002000 00004000 00008000 00010000
00020000 00040 000 00080000 00100000 00200000 00400000 00800000 01000000
CPU26: offline
 domain 0: span ffffffff
  groups: 04000000 08000000 10000000 20000000 40000000 80000000 00000001
0000000
2 00000004 00000008 00000010 00000020 00000040 00000080 00000100 00000200
000004 00 00000800 00001000 00002000 00004000 00008000 00010000 00020000
00040000 00080 000 00100000 00200000 00400000 00800000 01000000 02000000
CPU27: offline
 domain 0: span ffffffff
  groups: 08000000 10000000 20000000 40000000 80000000 00000001 00000002
0000000
4 00000008 00000010 00000020 00000040 00000080 00000100 00000200 00000400
000008 00 00001000 00002000 00004000 00008000 00010000 00020000 00040000
00080000 00100 000 00200000 00400000 00800000 01000000 02000000 04000000
CPU28: offline
 domain 0: span ffffffff
  groups: 10000000 20000000 40000000 80000000 00000001 00000002 00000004
0000000
8 00000010 00000020 00000040 00000080 00000100 00000200 00000400 00000800
000010 00 00002000 00004000 00008000 00010000 00020000 00040000 00080000
00100000 00200 000 00400000 00800000 01000000 02000000 04000000 08000000
CPU29: offline
 domain 0: span ffffffff
  groups: 20000000 40000000 80000000 00000001 00000002 00000004 00000008
0000001 0 00000020 00000040 00000080 00000100 00000200 00000400 00000800
00001000 000020 00 00004000 00008000 00010000 00020000 00040000 00080000
00100000 00200000 00400 000 00800000 01000000 02000000 04000000 08000000
10000000
CPU30: offline
 domain 0: span ffffffff
  groups: 40000000 80000000 00000001 00000002 00000004 00000008 00000010
0000002 0 00000040 00000080 00000100 00000200 00000400 00000800 00001000
00002000 000040 00 00008000 00010000 00020000 00040000 00080000 00100000
00200000 00400000 00800 000 01000000 02000000 04000000 08000000 10000000
20000000
CPU31: offline
 domain 0: span ffffffff
  groups: 80000000 00000001 00000002 00000004 00000008 00000010 00000020
0000004 0 00000080 00000100 00000200 00000400 00000800 00001000 00002000
00004000 000080 00 00010000 00020000 00040000 00080000 00100000 00200000
00400000 00800000 01000 000 02000000 04000000 08000000 10000000 20000000
40000000 checking if image is initramfs...it isn't (ungzip failed); looks
like an initrd
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0xf, 0x580, 0x0000b } 2.
unknown device at 0xfc000000 [8/0] { 13, 0x3, 0x05d, 0x0000a },  additional
a
ddresses: 0xfd800000
3. SummitHawk Dino RS-232 at 0xfc003000 [8/0/63] { 10, 0x0, 0x05d, 0x0008c }
4. Dino PCI Bridge at 0xfc004000 [8/4] { 13, 0x3, 0x680, 0x0000a },
additional
addresses: 0xfc800000
5. SummitHawk 230 Core BA at 0xffd00000 [8/12] { 11, 0x0, 0x05c, 0x00081 },
add itional addresses: 0xffd0c000 0xffc00000 6. SummitHawk 230 Core
Centronics at 0xffd02000 [8/12/0] { 10, 0x0, 0x05c, 0x000
74 },  additional addresses: 0xffd01000 0xffd03000 7. SummitHawk 230 Core
Audio at 0xffd04000 [8/12/1] { 10, 0x4, 0x05c, 0x0007b } 8. SummitHawk 230
Core SCSI at 0xffd06000 [8/12/5] { 10, 0x0, 0x05c, 0x00082 } 9. SummitHawk
230 Core PS/2 Port at 0xffd08000 [8/12/7] { 10, 0x0, 0x05c, 0x0008
4 }
10. SummitHawk 230 Core PS/2 Port at 0xffd08100 [8/12/8] { 10, 0x0, 0x05c,
0x000
84 }
11. U2-IOA BC GSC+ Port at 0xfc03f000 [8/63] { 7, 0x1, 0x501, 0x0000c } 12.
U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0xf, 0x580, 0x0000b } 13.
Cujo PCI Bridge at 0xf1604000 [10/4] { 13, 0x1, 0x682, 0x0000a },  additiona
l addresses: 0xf1800000 0xf6000000 14. SummitHawk Dino RS-232 at 0xf1607000
[10/4/63] { 10, 0x0, 0x05d, 0x0008c } 15. U2-IOA BC GSC+ Port at 0xf163f000
[10/63] { 7, 0x1, 0x501, 0x0000c } 16. SummitHawk U+ at 0xfffa0000 [32] { 0,
0x0, 0x5b5, 0x00004 } 17. SummitHawk U+ at 0xfffa2000 [34] { 0, 0x0, 0x5b5,
0x00004 } 18. Memory at 0xfffb1000 [49] { 1, 0x0, 0x083, 0x00009 } Releasing
cpu 1 now, hpa=fffa2000 FP[1] enabled: Rev 0 Model 14
CPU(s): 2 x PA8200 (PCX-U+) at 236.000000 MHz Found U2 at 0xfff88000 Found
U2 at 0xfff8a000 Lasi version 0 at 0xffd00000 found.
Cujo version unknown found at 0xfc000000 Dino [8/4] version 3.1 found at
0xfc004000 Cujo version 2.0 found at 0xf1604000 Enabling Cujo 2.0 bug
workaround SCSI subsystem initialized TC classifier action (bugs to
netdev@oss.sgi.com cc hadi@cyberus.ca) STI GSC/PCI core graphics driver
Version 0.9a STI PCI graphic ROM found at f1ff0000 (64 kB), fb at f6000000
(32 MB)
    id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
    graphics card name: PCI_GRAFFITIX1280
fb0: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIX1280, id: 2d08c0a7,
mmi
o: 0xf6100000
unwind_init: start = 0x103b6720, end = 0x103d7f40, entries = 8578
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Initializing Cryptographic API
Soft power switch enabled, polling @ 0xf0140000.
Console: switching to colour frame buffer device 160x64 Generic RTC Driver
v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 25 ports, IRQ sharing enabled
ttyS0 at MMIO 0xfc003800 (irq = 106) is a 16550A
ttyS1 at MMIO 0xf1607800 (irq = 170) is a 16550A RAMDISK driver initialized:
16 RAM disks of 8192K size 1024 blocksize
mice: PS/2 mouse device common for all mice
serio: GSC PS2 keyboard port at 0xffd08000 irq 69 @ parisc8:12:7
input: AT Raw Set 2 keyboard on parisc8:12:7
serio: GSC PS2 mouse port at 0xffd08100 irq 69 @ parisc8:12:8 HP SDC: No SDC
found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
NET: Registered protocol family 2
IP: routing cache hash table of 4096 buckets, 96Kbytes
TCP: Hash tables configured (established 131072 bind 52428)
RAMDISK: cramfs filesystem found at block 0
RAMDISK: Loading 4856 blocks [1 disk] into ram disk... done.
VFS: Mounted root (cramfs filesystem) readonly.
Freeing unused kernel memory: Badness in smp_call_function at
arch/parisc/kernel
/smp.c:342
Backtrace:
 [<1011963c>] smp_call_function+0x408/0x410  [<101088fc>]
flush_data_cache+0x24/0x40  [<10107a58>] free_initmem+0x78/0x38c
[<10103d30>] init+0x304/0x410  [<10110c5c>] ret_from_kernel_thread+0x1c/0x24

344k freed
NET: Registered protocol family 1
sym0: <895> rev 0x1 at pci 0000:01:13.0 irq 131
sym0: No NVRAM, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
sym0: SCSI BUS mode change from SE to SE.
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18k
Using anticipatory io scheduler
  Vendor: IBM       Model: DDRS-39130WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:5:0: tagged command queuing enabled, command queue depth 16.
scsi(0:0:5:0): Beginning Domain Validation
sym0:5: wide asynchronous.
sym0:5: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
scsi(0:0:5:0): Domain Validation skipping write tests
scsi(0:0:5:0): Ending Domain Validation
  Vendor: IBM       Model: DDRS-39130WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:6:0: tagged command queuing enabled, command queue depth 16.
scsi(0:0:6:0): Beginning Domain Validation
sym0:6: wide asynchronous.
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
scsi(0:0:6:0): Domain Validation skipping write tests
scsi(0:0:6:0): Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
  Vendor: TOSHIBA   Model: CD-ROM XM-5701TA  Rev: 1557
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi(1:0:2:0): Beginning Domain Validation
scsi1: (2:0) Asynchronous
scsi1: (2:0) Synchronous at offset 8, period 100ns
scsi(1:0:2:0): Domain Validation skipping write tests
scsi(1:0:2:0): Ending Domain Validation
  Vendor: HP        Model: C1537A            Rev: HP02
  Type:   Sequential-Access                  ANSI SCSI revision: 02
scsi(1:0:3:0): Beginning Domain Validation
scsi1: (3:0) Asynchronous
scsi1: (3:0) Synchronous at offset 8, period 100ns
scsi(1:0:3:0): Domain Validation skipping write tests
scsi(1:0:3:0): Ending Domain Validation
usbcore: registered new driver hub
usbcore: registered new driver usbkbd
drivers/usb/input/usbkbd.c: :USB HID Boot Protocol keyboard driver
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver Linux Tulip driver
version 1.1.13 (May 11, 2002)
tulip0:  EEPROM default media type Autosense.
tulip0:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip0: ***WARNING***: No MII transceiver found!
eth0: Digital DS21143 Tulip rev 33 at 0xfd810000, 00:60:B0:B2:FC:F5, IRQ 99.
tulip1: no phy info, aborting mtable build
tulip1:  MII transceiver #1 config 1000 status 7809 advertising 01e1.
eth1: Digital DS21143 Tulip rev 48 at 0xfc802000, 00:60:B0:A4:F3:F1, IRQ
128.
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB) SCSI device sda:
drive cache: write through
 /dev/scsi/host0/bus0/target5/lun0: p1 p2 p3 < p5 p6 > Attached scsi disk
sda at scsi0, channel 0, id 5, lun 0 SCSI device sdb: 17773524 512-byte hdwr
sectors (9100 MB) SCSI device sdb: drive cache: write through
 /dev/scsi/host0/bus0/target6/lun0:
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0 kjournald
starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
Adding 353388k swap on /dev/sda6.  Priority:-1 extents:1
EXT3 FS on sda5, internal journal
ehci_hcd: block sizes: qh 128 qtd 96 itd 192 sitd 96
ohci_hcd: 2004 Feb 02 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci_hcd: block sizes: ed 64 td 64
USB Universal Host Controller Interface driver v2.2 Attached scsi generic
sg0 at scsi0, channel 0, id 5, lun 0,  type 0 Attached scsi generic sg1 at
scsi0, channel 0, id 6, lun 0,  type 0 Attached scsi generic sg2 at scsi1,
channel 0, id 2, lun 0,  type 5 Attached scsi generic sg3 at scsi1, channel
0, id 3, lun 0,  type 1
st: Version 20040403, fixed bufsize 32768, s/g segs 256 Attached scsi tape
st0 at scsi1, channel 0, id 3, lun 0
st0: try direct i/o: yes (alignment 512 B), max page reachable by HBA
1048575 module ipv6 relocation of symbol ipv6_chk_addr is out of range
(0x3ffefffd in 17
 bits)
module ipv6 relocation of symbol ipv6_chk_addr is out of range (0x3ffefffd
in 17
 bits)
dirmngr (pid 1983): Protection id trap (code 7) at 4000201f

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111 Not tainted
r00-03  00000000 400023a0 4000201c faf00778
r04-07  40734a58 0001fd60 00000006 00000001
r08-11  00046ea8 00046ea8 000476a8 000001f6
r12-15  00000003 faf00130 00000000 00000001
r16-19  00000000 00000000 00000000 4077ada8
r20-23  00000001 4060d57c faf00778 00000000
r24-27  4077b424 00000000 4077b378 00045ea8
r28-31  00000000 ffffffff 40002308 40754083
sr0-3   00000c22 00000c22 00000000 00000c22
sr4-7   00000c22 00000c22 00000c22 00000c22

IASQ: 00000c22 00000c22 IAOQ: 4000201f 40002023
 IIR: 43ffff40    ISR: 102401e9  IOR: 3fb7b660
 CPU:        0   CR30: 8a538000 CR31: 10468000
 ORIG_R28: 00000000
 IAOQ[0]: 0x4000201f
 IAOQ[1]: 0x40002023
 RP(r2): 0x4000201c
parport_pc: Unknown symbol dma_spin_lock
lp: driver loaded but no devices found
NET: Registered protocol family 5
module ipv6 relocation of symbol ipv6_chk_addr is out of range (0x3ffefffd
in 17
 bits)
module ipv6 relocation of symbol ipv6_chk_addr is out of range (0x3ffefffd
in 17
 bits)
module ipv6 relocation of symbol ipv6_chk_addr is out of range (0x3ffefffd
in 17
 bits)












-----Original Message-----
From: varenet@gmail.com [mailto:varenet@gmail.com] On Behalf Of Thibaut
VARENE
Sent: Sunday, January 01, 2006 9:16 AM
To: Grant Grundler
Cc: Craig D. Lansing; parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] J2240 - Almost there....

On 1/1/06, Grant Grundler <grundler@parisc-linux.org> wrote:
> On Sat, Dec 31, 2005 at 11:21:06PM -0500, Craig D. Lansing wrote:
> > Duh!!!  Can you tell that it has been a long time since I've had a
"real"
> > computer to play with?
> >
> > Anyway, I now have a dual-boot (HP-UX 10 / Debian Linux) J2240.
> >
> > Here's what SAM thinks is in the system:
>
> "ioscan -fk" is the preferred output and I can
> better understand what is in the box.
> I don't understand what's really built-in or add-on
> with the SAM output.

And while you're at it, i'd love to have the output of 'cat
/proc/cpuinfo' 'cat /proc/iomem' 'cat /proc/ioports' 'cat
/proc/interrupts/' and 'dmesg' from Linux to add to this growing list
:
http://www.pateam.org/archive/logs/ ;)

Thx and happy new year to every one!

T-Bone

--
Thibaut VARENE
http://www.parisc-linux.org/~varenet/

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 'Thibaut VARENE' <T-Bone@parisc-linux.org>
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On Mon, Jan 02, 2006 at 08:19:55PM -0500, Craig D. Lansing wrote:
> f1600000-f3ffffff : GSC Bus [10/]
>   f1604000-f1604fff : Cujo
>   f1607800-f1607807 : serial
>   f1800000-f1ffffff : Cujo LMMIO 0
> f4000000-f5ffffff : GSC Bus [8/]
> f6000000-f7ffffff : GSC Bus [10/]
>   f6000000-f7ffffff : Cujo LMMIO 1
> f8000000-fff7ffff : GSC Bus [8/]
>   fc000000-fc000fff : Cujo
>   fc004000-fc004fff : Dino [8/4]
>   fc800000-fcffffff : Dino [8/4] LMMIO 0
>   fd800000-fdffffff : Cujo LMMIO 0
[...]
> Found devices:
> 1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0xf, 0x580, 0x0000b } 2.
> unknown device at 0xfc000000 [8/0] { 13, 0x3, 0x05d, 0x0000a },  additional
> a
> ddresses: 0xfd800000
[...]
> Cujo version unknown found at 0xfc000000 Dino [8/4] version 3.1 found at
> 0xfc004000 Cujo version 2.0 found at 0xf1604000 Enabling Cujo 2.0 bug
> workaround SCSI subsystem initialized TC classifier action (bugs to

Fixed both of these problems (Dino reported as Cujo and first Cujo
reported as unknown)

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Subject: [parisc-linux] Re: init pause() on some systems but not all?
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Hello Max,

> Hi Joel & PA,
> 
> I also have the same, or at least similar problem on my c3700
> (2.6.15-rc1-pa1, 2.6.15-rc5-pa3, debian/testing):

Thanks for feedback ;-)

Just a small uptade about 2.5.15-pa1 kernel: the pb is still there ;-/

For what is the very frustating situation, I just view alive the pb occur=
ing
on all my testing systems (b2k, d380, b180, n4k): all were clean, early t=
his
morning when daily cron job started, then after a few moment init() fall =
in
pause() but very hard to tack some picture of process runing on all those=

sytem at this very moment :<(

Any idea?

Thanks,
    Joel

 =0A=0A-------------------------------------------------------=0ANOTE! My=
 email address is changing to ... @scarlet.be=0APlease make the necessary=
 changes in your address book. =0A=0A

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Subject: Re: [parisc-linux] J2240 - Almost there....
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On Mon, Jan 02, 2006 at 08:19:55PM -0500, Craig D. Lansing wrote:
> Sorry that it took so long to reply.  I spent most of the day driving to /
> from Washington, DC yesterday.  Re-installed and ran into problems as
> follows:
> 
> 1) Got gdm prompt (black&white, really large), but was able to login.  Mouse
> was not recognized after that so I was "stuck" in the desktop.

ctl-alt-backspace will kill the X11 server.

> I was able to login OK in single user command line mode.
> 
> 2) Re-installed after getting the actual "advanced" HP p1120 console specs
> (instead of "simple").  Re-install failed due to "SMP CALL FUNCTION TIMED
> OUT! (cpu=0), try ###" errors (I powered off the box after about 2000 of
> these).

Newer kernels (not sure if 2.6.14, but certainly 2.6.15-pa1) fix this.
(kudos to James Bottomley)

>   Rebooted and got message to run "dpkg --configure -a".  Did that
> and packages installed.  The system now tries to start gdm (flickers a lot),
> but ultimately just goes to a blinking cursor  When I reboot (shutdown -r 0)
> I now get the "Welcome to your new Debian system" prompt.  I guess maybe I
> should re-install again????
> 
> 3) Networking appears to not be working, I assumed that is because of the
> "blacklisted" FDDI card (defxx,DEFPA).

Unlikely.

>   The box has an internal IP address
> 192.168.1.100 and I can't even ping it.  However, I cannot ping the box when
> booted into HP-UX either (192.168.1.200).  Bad card (I tried the obvious of
> another cable)????

Add a 100BT card (tulip or e100) and see if that works better.
According to HW DB, j2240 has DEC21143 (tulip) built-in and I would
expect that to work fine.

Based on the /proc/iomem output below, looks like you have two tulip
devices in the machine. Likely the LAN cable is connected to the wrong one.

> To get the info. requsted below w/o a LAN, I "cheated" and started a getty
> against a serial port, logged in via a Reflection session, and logged to an
> output file... not pretty, but functional.  Sorry if this is more than you
> wanted to see.

no problem.

...
> howlin:~# cat /proc/iomem
> 00000000-7fffffff : System RAM
>   00000000-000009ff : PDC data (Page Zero)
>   00100000-003b4fff : Kernel code
>   003b5000-00513b03 : Kernel data
> f0190000-f0190000 : lcd_cmd
> f0190001-f0190001 : lcd_data
> f1600000-f3ffffff : GSC Bus [10/]
>   f1604000-f1604fff : Cujo
>   f1607800-f1607807 : serial
>   f1800000-f1ffffff : Cujo LMMIO 0
> f4000000-f5ffffff : GSC Bus [8/]
> f6000000-f7ffffff : GSC Bus [10/]
>   f6000000-f7ffffff : Cujo LMMIO 1
>     f6000000-f7ffffff : 0000:02:00.0
>       f6100000-f64fffff : stifb mmio
>       f7000000-f71fffff : stifb fb
> f8000000-fff7ffff : GSC Bus [8/]
>   fc000000-fc000fff : Cujo
>   fc003800-fc003807 : serial
>   fc004000-fc004fff : Dino [8/4]
>   fc800000-fcffffff : Dino [8/4] LMMIO 0
>     fc800000-fc800fff : 0000:01:13.0
>       fc800000-fc800fff : sym53c8xx
>     fc801000-fc8010ff : 0000:01:13.0
>       fc801000-fc8010ff : sym53c8xx
>     fc802000-fc80207f : 0000:01:14.0
>       fc802000-fc80207f : tulip
>   fd800000-fdffffff : Cujo LMMIO 0
>     fd800000-fd80ffff : 0000:00:04.0
>     fd810000-fd81007f : 0000:00:03.0
>       fd810000-fd81007f : tulip
>     fd811000-fd81107f : 0000:00:04.0
>   ffd00000-ffdfffff : Lasi
>     ffd00000-ffd00fff : Lasi
>     ffd06000-ffd06fff : Lasi SCSI
>     ffd08000-ffd08fff : GSC PS2
> fff80000-fffaffff : Central Bus
>   fff88000-fff88fff : U2:Uturn
>   fff8a000-fff8afff : U2:Uturn
>   fffa0000-fffa0fff : CPU
>   fffa2000-fffa2fff : CPU
> fffb0000-fffdffff : Local Broadcast
> fffe0000-ffffffff : Global Broadcast


0000:00:03.0 is tulip in slot 3.
0000:01:14.0 is tulip built-in. (my guess)

> howlin:~# cat /proc/interrupts 
>            CPU00       CPU01 
>  32:     125984     124641      PARISC-CPU  timer
>  33:       8458       9035      PARISC-CPU  IPI
>  34:        120          0      PARISC-CPU  lasi
>  35:          0       1274      PARISC-CPU  Cujo
>  36:       7095          0      PARISC-CPU  Dino [8/4]
>  37:          0          0      PARISC-CPU  Cujo
>  69:         41          0            Lasi  GSC PS2 keyboard, GSC PS2 mouse
>  86:         79          0            Lasi  lasi700
>  99:          0        858            Cujo  eth0

Note that eth0 is routed to Cujo (not dino) - this tulip is in slot 3.

> 106:          0        417            Cujo  serial
> 131:       7095          0      Dino [8/4]  sym53c8xx
> howlin:~# dmesg
> Linux version 2.6.8-2-32-smp (root@palinux) (gcc version 3.3.5 (Debian
> 1:3.3.5-1
> 3)) #1 SMP Wed Aug 24 17:55:41 UTC 2005
> FP[0] enabled: Rev 0 Model 14
> The 32-bit Kernel has started...
> Determining PDC firmware type: System Map.
...
> Brought up 1 CPUs
> CPU0:  online
>  domain 0: span ffffffff
>   groups: 00000001 00000002 00000004 00000008 00000010 00000020 00000040
> 0000008 0 00000100 00000200 00000400 00000800 00001000 00002000 00004000
> 00008000 000100 00 00020000 00040000 00080000 00100000 00200000 00400000
> 00800000 01000000 02000 000 04000000 08000000 10000000 20000000 40000000
> 80000000
> CPU1: offline
>  domain 0: span ffffffff
>   groups: 00000002 00000004 00000008 00000010 00000020 00000040 00000080
> 0000010 0 00000200 00000400 00000800 00001000 00002000 00004000 00008000
> 00010000 000200 00 00040000 00080000 00100000 00200000 00400000 00800000
> 01000000 02000000 04000 000 08000000 10000000 20000000 40000000 80000000
> 00000001
> CPU2: offline
>  domain 0: span ffffffff
>   groups: 00000004 00000008 00000010 00000020 00000040 00000080 00000100
> 0000020 0 00000400 00000800 00001000 00002000 00004000 00008000 00010000
> 00020000 000400 00 00080000 00100000 00200000 00400000 00800000 01000000
> 02000000 04000000 08000 000 10000000 20000000 40000000 80000000 00000001
> 00000002
...
> CPU31: offline
>  domain 0: span ffffffff
>   groups: 80000000 00000001 00000002 00000004 00000008 00000010 00000020
> 0000004 0 00000080 00000100 00000200 00000400 00000800 00001000 00002000
> 00004000 000080 00 00010000 00020000 00040000 00080000 00100000 00200000
> 00400000 00800000 01000 000 02000000 04000000 08000000 10000000 20000000
> 40000000

Do we really need this stuff dumped to console?

> 0x00004 } 18. Memory at 0xfffb1000 [49] { 1, 0x0, 0x083, 0x00009 } Releasing
> cpu 1 now, hpa=fffa2000 FP[1] enabled: Rev 0 Model 14
> CPU(s): 2 x PA8200 (PCX-U+) at 236.000000 MHz Found U2 at 0xfff88000 Found
> U2 at 0xfff8a000 Lasi version 0 at 0xffd00000 found.
> Cujo version unknown found at 0xfc000000 Dino [8/4] version 3.1 found at
> 0xfc004000 Cujo version 2.0 found at 0xf1604000 Enabling Cujo 2.0 bug
> workaround SCSI subsystem initialized TC classifier action (bugs to
> netdev@oss.sgi.com cc hadi@cyberus.ca) STI GSC/PCI core graphics driver
> Version 0.9a STI PCI graphic ROM found at f1ff0000 (64 kB), fb at f6000000
> (32 MB)

Your mailer or capture utility is loosing CRs here.

> version 1.1.13 (May 11, 2002)
> tulip0:  EEPROM default media type Autosense.
> tulip0:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
> tulip0: ***WARNING***: No MII transceiver found!
> eth0: Digital DS21143 Tulip rev 33 at 0xfd810000, 00:60:B0:B2:FC:F5, IRQ 99.
> tulip1: no phy info, aborting mtable build
> tulip1:  MII transceiver #1 config 1000 status 7809 advertising 01e1.
> eth1: Digital DS21143 Tulip rev 48 at 0xfc802000, 00:60:B0:A4:F3:F1, IRQ
> 128.
...

ok. should be easy now to figure out which is connected (or not).

thanks,
grant
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Subject: Re: [parisc-linux] J2240 - Almost there....
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Xref: news.gmane.org gmane.linux.ports.parisc:23321

On Wed, Jan 04, 2006 at 10:43:32AM -0700, Grant Grundler wrote:
> ...
> > howlin:~# cat /proc/iomem
> > 00000000-7fffffff : System RAM
> >   00000000-000009ff : PDC data (Page Zero)
> >   00100000-003b4fff : Kernel code
> >   003b5000-00513b03 : Kernel data
> > f0190000-f0190000 : lcd_cmd
> > f0190001-f0190001 : lcd_data
> > f1600000-f3ffffff : GSC Bus [10/]
> >   f1604000-f1604fff : Cujo
> >   f1607800-f1607807 : serial
> >   f1800000-f1ffffff : Cujo LMMIO 0
> > f4000000-f5ffffff : GSC Bus [8/]
> > f6000000-f7ffffff : GSC Bus [10/]
> >   f6000000-f7ffffff : Cujo LMMIO 1
> >     f6000000-f7ffffff : 0000:02:00.0
> >       f6100000-f64fffff : stifb mmio
> >       f7000000-f71fffff : stifb fb
> > f8000000-fff7ffff : GSC Bus [8/]
> >   fc000000-fc000fff : Cujo
> >   fc003800-fc003807 : serial
> >   fc004000-fc004fff : Dino [8/4]
> >   fc800000-fcffffff : Dino [8/4] LMMIO 0
> >     fc800000-fc800fff : 0000:01:13.0
> >       fc800000-fc800fff : sym53c8xx
> >     fc801000-fc8010ff : 0000:01:13.0
> >       fc801000-fc8010ff : sym53c8xx
> >     fc802000-fc80207f : 0000:01:14.0
> >       fc802000-fc80207f : tulip
> >   fd800000-fdffffff : Cujo LMMIO 0
> >     fd800000-fd80ffff : 0000:00:04.0
> >     fd810000-fd81007f : 0000:00:03.0
> >       fd810000-fd81007f : tulip
> >     fd811000-fd81107f : 0000:00:04.0
> >   ffd00000-ffdfffff : Lasi
> >     ffd00000-ffd00fff : Lasi
> >     ffd06000-ffd06fff : Lasi SCSI
> >     ffd08000-ffd08fff : GSC PS2
> > fff80000-fffaffff : Central Bus
> >   fff88000-fff88fff : U2:Uturn
> >   fff8a000-fff8afff : U2:Uturn
> >   fffa0000-fffa0fff : CPU
> >   fffa2000-fffa2fff : CPU
> > fffb0000-fffdffff : Local Broadcast
> > fffe0000-ffffffff : Global Broadcast
> 
> 
> 0000:00:03.0 is tulip in slot 3.
> 0000:01:14.0 is tulip built-in. (my guess)

I disagree.  The 'Cujo' on GSC bus 8 is actually a Dino.  As I said
in my earlier mail, I've now fixed this.  So I think eth0 (00:03.0)
is actually the built-in one.

> > CPU0:  online
> >  domain 0: span ffffffff
> >   groups: 00000001 00000002 00000004 00000008 00000010 00000020 00000040
> > 0000008 0 00000100 00000200 00000400 00000800 00001000 00002000 00004000
> > 00008000 000100 00 00020000 00040000 00080000 00100000 00200000 00400000
> > 00800000 01000000 02000 000 04000000 08000000 10000000 20000000 40000000
> > 80000000
> > CPU1: offline
> >  domain 0: span ffffffff
> >   groups: 00000002 00000004 00000008 00000010 00000020 00000040 00000080
> > 0000010 0 00000200 00000400 00000800 00001000 00002000 00004000 00008000
> > 00010000 000200 00 00040000 00080000 00100000 00200000 00400000 00800000
> > 01000000 02000000 04000 000 08000000 10000000 20000000 40000000 80000000
> > 00000001
> 
> Do we really need this stuff dumped to console?

I think it's no longer dumped to console by current kernels.

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On Wed, Jan 04, 2006 at 10:49:43AM -0700, Matthew Wilcox wrote:
...
> > 0000:00:03.0 is tulip in slot 3.
> > 0000:01:14.0 is tulip built-in. (my guess)
> 
> I disagree.  The 'Cujo' on GSC bus 8 is actually a Dino.  As I said
> in my earlier mail, I've now fixed this.

I couldn't tell if the names were wrong offhand - needed ioscan output
(got it) and compare. Thanks for fixing this.

> So I think eth0 (00:03.0) is actually the built-in one.

I think I got this right despite PCI controller names.
Workstations typically hardwired the PCI slot to use the same device
number (e.g. 3) as what is silk screened on the back of the machine.
Built-in devices were typically given numbers much greater than the
highest slot number.

Servers never did this just because that scheme doesn't work multi-cell
systems with > 32 PCI slots (e.g. superdome) or multiple IO bays with
identical silk screened slot numbers.

thanks,
grant

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I forgot about the built-in LAN port.  I moved the cable to that one and all
was working from HP-UX, so I restarted the Debian install from CD... it sure
works much better now!!!! The installer doesn't ask for the network info
anymore (i.e. got an IP address from DHCP and did not ask for DNS info,
gateway, etc.), automagically selected eth1 (I guess that implies that eth1
is the built-in and eth0 is the card), and no longer whines about not being
able to reach security.debian.org.

The installer has been busily installing packages for at least 3 hours.  

1. Blew up / hung once on:
Setting up libatk1.0-0 (1.8.0-4) ...
module ipv6 relocation of symbol ipv6_chk_addr is out of range (0x3ff3fffd
in 17 bits).

2. Power cycled, booted
I get the "module ipv6..." errors when portmap, PostgreSQL, and Apache2
daemons start.

3. Restarted install via "apt-get -f install".  This is my first attempt at
Debian, so I am not APT literate.  This is just what I was prompted to do
when I tried to install one package.

Installer is still chugging.

This appears to be a good sign.


-----Original Message-----
From: parisc-linux-bounces@lists.parisc-linux.org
[mailto:parisc-linux-bounces@lists.parisc-linux.org] On Behalf Of Grant
Grundler
Sent: Wednesday, January 04, 2006 1:19 PM
To: Matthew Wilcox
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] J2240 - Almost there....

On Wed, Jan 04, 2006 at 10:49:43AM -0700, Matthew Wilcox wrote:
...
> > 0000:00:03.0 is tulip in slot 3.
> > 0000:01:14.0 is tulip built-in. (my guess)
> 
> I disagree.  The 'Cujo' on GSC bus 8 is actually a Dino.  As I said
> in my earlier mail, I've now fixed this.

I couldn't tell if the names were wrong offhand - needed ioscan output
(got it) and compare. Thanks for fixing this.

> So I think eth0 (00:03.0) is actually the built-in one.

I think I got this right despite PCI controller names.
Workstations typically hardwired the PCI slot to use the same device
number (e.g. 3) as what is silk screened on the back of the machine.
Built-in devices were typically given numbers much greater than the
highest slot number.

Servers never did this just because that scheme doesn't work multi-cell
systems with > 32 PCI slots (e.g. superdome) or multiple IO bays with
identical silk screened slot numbers.

thanks,
grant

_______________________________________________
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parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

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Subject: Re:[parisc-linux] Re: init pause() on some systems but not all?
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Hello Max,
> 
> > Hi Joel & PA,
> > 
> > I also have the same, or at least similar problem on my c3700
> > (2.6.15-rc1-pa1, 2.6.15-rc5-pa3, debian/testing):
> 
> Thanks for feedback ;-)
> 
> Just a small uptade about 2.5.15-pa1 kernel: the pb is still there ;-/
> 
> For what is the very frustating situation, I just view alive the pb occ=
uring
> on all my testing systems (b2k, d380, b180, n4k): all were clean, early=
 this
> morning when daily cron job started, then after a few moment init() fal=
l in
> pause() but very hard to tack some picture of process runing on all tho=
se
> sytem at this very moment :<(
> 

Could it be that you installed ckrootkit dpkg on your system?

I trace more closely daily cron behaviour (loging a top -b -d 1) and:
- just one second before init fall in pause():
top - 07:42:14 up 17 min, 3 users, load average: 1.82, 2.13, 1.38
Tasks: 70 total, 2 running, 68 sleeping, 0 stopped, 0 zombie
Cpu(s): 4.5% us, 79.5% sy, 15.2% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.9% si
Mem: 255260k total, 252612k used, 2648k free, 109220k buffers
Swap: 517480k total, 0k used, 517480k free, 26856k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ WCHAN COMMAND
4012 root 35 10 2904 1712 440 R 91.2 0.7 0:03.87 intr_chec chkproc
3882 root 16 0 2904 1328 1020 R 9.1 0.5 0:07.69 read top
1 root 16 0 2292 808 664 S 0.0 0.3 0:41.79 select init
2 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd ksoftirqd

- just next sec:
top - 07:42:15 up 17 min, 3 users, load average: 1.82, 2.13, 1.38
Tasks: 70 total, 2 running, 68 sleeping, 0 stopped, 0 zombie
Cpu(s): 3.7% us, 78.9% sy, 17.4% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 255260k total, 251592k used, 3668k free, 109224k buffers
Swap: 517480k total, 0k used, 517480k free, 26864k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ WCHAN COMMAND
3882 root 16 0 2904 1328 1020 R 9.1 0.5 0:07.79 read top
3030 root 25 10 3776 2304 1112 S 1.8 0.9 0:03.55 pipe_wait chkrootki
1 root 16 0 2292 808 664 S 0.0 0.3 0:41.79 pause init
2 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd ksoftirqd

I disable all cron (anacron & cron) on a system (b2k), reboot it and laun=
ched
chrootkit manualy and the pb shows up quickly around:
[...]
Searching for anomalies in shell history files... nothing found
Checking `asp'... not infected
Checking `bindshell'... not infected
Checking `lkm'... chkproc: nothing detected
Checking `rexedcs'... not found
Checking `sniffer'... lo: not promisc and no packet sniffer sockets
eth0: not promisc and no packet sniffer sockets
eth1: not promisc and no packet sniffer sockets
Checking `w55808'... not infected
Checking `wted'... chkwtmp: nothing deleted
Checking `scalper'... not infected
Checking `slapper'... not infected
[...]

This pkg is installed on all my systems but on the system on which the pb=

doesn't occure, it was a bit differently configured (run on demand not da=
ily
croned).

Given those info, I hope to progress a bit (more) ;-)

hth,
   Joel
=0A=0A-------------------------------------------------------=0ANOTE! My =
email address is changing to ... @scarlet.be=0APlease make the necessary =
changes in your address book. =0A=0A

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Subject: Re: [parisc-linux] finaly kill(1,
	25) was the init pause() pb on some systems but not all.
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On Thu, Jan 05, 2006 at 03:18:35PM +0100, Joel Soete wrote:
> This very small test case reproduce it:
> #include <stdio.h>
> #include <errno.h>
> #include <sys/types.h>
> #include <dirent.h>
> #include <ctype.h>
> #include <stdlib.h>
> #include <unistd.h>
> #include <signal.h>
> 
> int main(int argc, char **argv)
> {
>     int retdir=0;
>     retdir = kill (1, 25);
>     printf("Kill (1, 25) : %d\n", retdir);
>     printf("errno : %d\n", errno);
> }

Run as root?

> ====<>====
> 
> mmm that said, I am curious to know why '25' is coded like this (and not e.g.
> symbolic name)?

Probably because 25 is XFSZ on everything except MIPS and PA.

> Finaly: a kernel pb, a libc pb or chkrootkit bug?

Definitely the latter.  Whether it's a former, I don't know.  Can you
do it on x86 by sending init a TSTP?
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Subject: Re: [parisc-linux] finaly kill(1, 25) was the init pause() pb on some 
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> On Thu, Jan 05, 2006 at 03:18:35PM +0100, Joel Soete wrote:
> > This very small test case reproduce it:
> > #include <stdio.h>
> > #include <errno.h>
> > #include <sys/types.h>
> > #include <dirent.h>
> > #include <ctype.h>
> > #include <stdlib.h>
> > #include <unistd.h>
> > #include <signal.h>
> > 
> > int main(int argc, char **argv)
> > {
> >     int retdir=3D0;
> >     retdir =3D kill (1, 25);
> >     printf("Kill (1, 25) : %d\n", retdir);
> >     printf("errno : %d\n", errno);
> > }
> 
> Run as root?
> 
Yes ;-)

(as common user:
$ ./TstK
Kill (1, 25) : -1
errno : 1

> > =3D=3D=3D=3D<>=3D=3D=3D=3D
> > 
> > mmm that said, I am curious to know why '25' is coded like this (and =
not e.g.
> > symbolic name)?
> 
> Probably because 25 is XFSZ on everything except MIPS and PA.
> 
> > Finaly: a kernel pb, a libc pb or chkrootkit bug?
> 
> Definitely the latter.  Whether it's a former, I don't know.  Can you
> do it on x86 by sending init a TSTP?
> 
> 
Well, writen the foo.c like:
int main(int argc, char **argv)
{
    int retdir=3D0;
    retdir =3D kill (1, SIGTSTP);
    printf("Kill (1, SIGTSTP) : %d\n", retdir);
    printf("errno : %d\n", errno);
}

(i.e. on i386: #define SIGTSTP         20      /* Keyboard stop (POSIX). =
 */)

has the same effect on a i386, though:
top - 17:03:15 up 2 days,  1:34,  7 users,  load average: 0.02, 0.05, 0.0=
1
Tasks:  72 total,   1 running,  71 sleeping,   0 stopped,   0 zombie
Cpu(s):  3.0% us,  0.3% sy,  0.0% ni, 95.4% id,  0.0% wa,  0.3% hi,  1.0%=
 si
Mem:    125892k total,   121868k used,     4024k free,    11520k buffers
Swap:   257032k total,    38368k used,   218664k free,    52244k cached
Change delay from 3.0 to: 
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  WCHAN     CO=
MMAND
                                                    
 3058 jso       15   0  118m  42m  12m S  3.3 34.7  26:29.05 stext    
mozilla-bin                                                  
 8883 root      16   0  2248 1088  840 R  0.7  0.9   0:03.68 stext     to=
p   
                                                      
    1 root      16   0  1924  604  552 S  0.0  0.5   0:00.42 pause     in=
it  
                                                      

That said, I also thought that could be an init pb:
i read in ./parisc/kernel/signal.c:
/* 
 * Note that 'init' is a special process: it doesn't get signals it doesn=
't
 * want to handle.
[...]

but what are the signal that init want to handle?

Btw: could you explain me why is it foreseen that it want to handle SIGTS=
TP
(what ever is real value is) and not ignore it as I basicaly thought?

Thanks,
    Joel

PS: I will report pb asap to chkrootkit.
=0A=0A-------------------------------------------------------=0ANOTE! My =
email address is changing to ... @scarlet.be=0APlease make the necessary =
changes in your address book. =0A=0A

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Which gcc-X.Y-hppa64 variants are still needed for Debian sid/etch?
Currently compilers are built for 3.3, 3.4, 4.0 and 4.1, the latter
one for experimental. Is it time to drop some of these?

  Matthias


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On Fri, 2006-01-06 at 03:54 +0100, Matthias Klose wrote:
> Which gcc-X.Y-hppa64 variants are still needed for Debian sid/etch?
> Currently compilers are built for 3.3, 3.4, 4.0 and 4.1, the latter
> one for experimental. Is it time to drop some of these?

We use the hppa64 compilers only for generating our kernels.  Most of my
64 bit kernels are currently built with 3.4.5-1 so I wouldn't have
strenuous objections to removing 3.3;  For 4.0 and 4.1, you need to ask
John David Anglin <dave@hiauly1.hia.nrc.ca> because I think these
compilers are still under suspicion of not generating correct code for
parisc64.

James


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On Fri, Jan 06, 2006 at 03:54:40AM +0100, Matthias Klose wrote:
> Which gcc-X.Y-hppa64 variants are still needed for Debian sid/etch?
> Currently compilers are built for 3.3, 3.4, 4.0 and 4.1, the latter
> one for experimental. Is it time to drop some of these?
>

Please don't remove gcc-3.4-hppa64. I use it on many machines
for kernel builds. 3.3 and 4.0 can go, imnsho, but I'll defer to the
experts. 


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On Friday 06 January 2006 20:27, Kyle McMartin wrote:
> On Fri, Jan 06, 2006 at 03:54:40AM +0100, Matthias Klose wrote:
> > Which gcc-X.Y-hppa64 variants are still needed for Debian sid/etch?
> > Currently compilers are built for 3.3, 3.4, 4.0 and 4.1, the latter
> > one for experimental. Is it time to drop some of these?
> >
> 
> Please don't remove gcc-3.4-hppa64. I use it on many machines
> for kernel builds. 3.3 and 4.0 can go, imnsho, but I'll defer to the
> experts. 

I'm for removing 3.3 and 4.0 as well.

BTW, what does it take to drop hppa64-compiler in favour of a "-m64" compiler flag (as on x86_64) to hppa-gcc as well ?

Helge


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> On 1/7/06, Helge Deller <deller@gmx.de> wrote:
> >
> > BTW, what does it take to drop hppa64-compiler in favour of a "-m64" compiler flag (as on x86_64) to hppa-gcc as well ?
> 
> This is probably impossible for the simple reason that the 64bit
> flavour of hppa gcc can only build kernels: we don't have a 64bit
> userland and thus the 64bit gcc is very limited in its features...
> This is not a full-featured compiler:

That's not true.  Under hpux, it's features are essentially equivalent
to the 32-bit compiler except for the lack of an ada port.  A -m64
option would be immediately useful under hpux.

There's not a lot that needs to be added to GCC for a 64-bit linux runtime.
The problems in creating a 64-bit userland are elsewhere.  Carlos has
made a start.  Maybe this should be in the wiki.

As usual, the main issue is the number of contributors.  Randolph and
Carlos have just about finished TLS support.  Randolph and others in
the gdb project have made numerous fixes to gdb that makes life so much
easier...  When TLS is finished, possibly the next step is to move back
to the 64-bit runtime.

As well as GCC, work needs to be done on binutils for merged 32/64 bit
support.  For example, it would be nice if elf32-hppa.c and elf64-hppa.c 
could be merged to elfxx-hppa.c.  We really need to merge the binutils
tools before doing GCC.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> On Sat, Jan 07, 2006 at 01:05:11AM -0800, Steve Langasek wrote:
> > Grant, thank you for your work to date on this bug.  (BTW, it would be
> > helpful if you would follow up to bug #342545 on libgcc2, instead of bug
> > #341675 which is filed against just one of the many packages affected by
> > it).

There isn't a lot of info in #342545.  However, I suspect from the
following comment

> It would be nice if somebody fluent with hppa assembly can tell us if 

>       fldw -10(,sp),fr23

that this is the same bug as reported here:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20754.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> There isn't a lot of info in #342545.  However, I suspect from the
> following comment
> 
> > It would be nice if somebody fluent with hppa assembly can tell us if 
> 
> >       fldw -10(,sp),fr23
> 
> that this is the same bug as reported here:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20754.

Changed my mind based on the discussion in
http://lists.debian.org/debian-hppa/2006/01/msg00001.html.  The only
way that the above instruction can cause an invalid exception is

  The current instruction is a load of the destination register of
  a pending, trapping instruction (see page 10-5 of arch, delayed
  traps).

The instruction can cause the usual memory faults (i.e., check value
in sp).  In either case, the real problem is somewhere else.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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On Mon, Dec 26, 2005 at 02:58:40PM -0500, John David Anglin wrote:
> With libc6 2.3.5-8:
> 
> #include <stdlib.h>
> int
> main ()
> {
>   printf ("%Lf\n", strtold ("1", NULL));
>     return 0;
> }
> 
> dave@gsyprf11:~/gcc_test$ gcc -o ld1 ld1.c
> dave@gsyprf11:~/gcc_test$ ./ld1
> 0.000000

strtold will never work, gcc and libc have different sizes for long
double. This is probably a side-effect of this.

If we really want long double to work we need to do something like set
it to be the same as double.

128-bit long double is just going to be a pain, and I don't know how
well the 80-bit long double from IBM supports IEEE modes.

c.

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> strtold will never work, gcc and libc have different sizes for long
> double. This is probably a side-effect of this.

I'm not sure what has changed but this is the source of a number
of gfortran and libstdc++ regressions when using the current version
of libc in unstable.

> If we really want long double to work we need to do something like set
> it to be the same as double.

Long double has always been the same as double in GCC.  It allowed
by the C and C++ standards.  It fast and the hardware and corner
cases are well understood.

I've given up hope that HP will release their IEEE long double emulation
code for PA-RISC.  Although I don't have any hard evidence of bugs in it,
there is the suggestion from the ada testsuite run under hpux that there
may be bugs in the rounding and exception support.

> 128-bit long double is just going to be a pain, and I don't know how
> well the 80-bit long double from IBM supports IEEE modes.

The only viable alternatives at this point are:

  1) long double == double (64 bit long double), or
  2) IBM 128-bit double double implementation used by powerpc.

After more than a year of using the double-double format, the powerpc
folks are still working the bugs out from the corner cases.  While I
guess it more or less works, I wouldn't want to rely on it for
critical calculations.  RTH recented indicated that this would be a
poor choice for another port in the same situation.  The same viewpoint
was expressed to me by an Ada maintainer at the last GCC summit.  Ada
probably has the best numerics support in GCC.

There is no support for the 80-bit format (either in hardware or
software) on PA-RISC as far as I know.  So, this alternative isn't viable.

C99 requires long double support.  Thus, I believe we should go with
option 1 and libc should be changed.  We aren't the only target with
this problem, so there must be some libc support for 64-bit long double.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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                === ld Summary ===

# of expected passes            215
# of expected failures          41
/mnt/flaire/src/tls-toolchain-hppa/build/binutils/ld/ld-new 20051210

I built my own libc6 with the appropriate support for some of our new
relocations and binutils is happy. I have the patches attached, I will
need to feed them to the debian-glibc team.

Cheers,
Carlos.

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On 1/7/06, Helge Deller <deller@gmx.de> wrote:
>
> BTW, what does it take to drop hppa64-compiler in favour of a "-m64" comp=
iler flag (as on x86_64) to hppa-gcc as well ?

This is probably impossible for the simple reason that the 64bit
flavour of hppa gcc can only build kernels: we don't have a 64bit
userland and thus the 64bit gcc is very limited in its features...
This is not a full-featured compiler:

Reading specs from /usr/lib/gcc/hppa64-linux-gnu/3.4.5/specs
Configured with: ../src/configure --enable-languages=3Dc --prefix=3D/usr
--libexecdir=3D/usr/lib --disable-shared --disable-nls --disable-threads
--with-as=3D/usr/bin/hppa64-linux-gnu-as
--with-ld=3D/usr/bin/hppa64-linux-gnu-ld
--includedir=3D/usr/hppa64-linux/include --host=3Dhppa-linux-gnu
--build=3Dhppa-linux-gnu --target=3Dhppa64-linux-gnu
Thread model: single
gcc version 3.4.5 (Debian 3.4.5-1)

HTH

T-Bone

--
Thibaut VARENE
http://www.parisc-linux.org/~varenet/



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> On Friday 06 January 2006 20:27, Kyle McMartin wrote:
> > On Fri, Jan 06, 2006 at 03:54:40AM +0100, Matthias Klose wrote:
> > > Which gcc-X.Y-hppa64 variants are still needed for Debian sid/etch?
> > > Currently compilers are built for 3.3, 3.4, 4.0 and 4.1, the latter
> > > one for experimental. Is it time to drop some of these?
> > >
> > 
> > Please don't remove gcc-3.4-hppa64. I use it on many machines
> > for kernel builds. 3.3 and 4.0 can go, imnsho, but I'll defer to the
> > experts. 
> 
> I'm for removing 3.3 and 4.0 as well.

Personally, I would take 4.0 over 4.1 at the moment.  Although 4.1
is getting there, it's taking more time than expected to eliminate
most of the regressions.  For example, the ada testsuite is pretty
clean in 4.0, but there are a lot of problems in 4.1.  I'm aware of
one optimization issue affecting floating point code.  This problem
is present in all versions, but exposed by the "improvements" in 4.x.

The newer GCC versions require more memory and are slower.  You might
find that 4.x is too slow on PA 1.1 machines.  The GCC build and check
time on a 735 is up to about five days.

It takes quite a bit of time to find and fix bugs.  For example, there
are still a number of libc problems caused by the move to 4.0.  So, I
wouldn't rush to use the newer versions unless they fix a crucial bug.

> BTW, what does it take to drop hppa64-compiler in favour of a "-m64" compiler flag (as on x86_64) to hppa-gcc as well ?

Quite a bit of work is involved.  Some of the work involves adding new
target hooks to the core code.  The problem is that there are different
sets of macro defines for 32 bit/64 bit/gas/HP as/GNU ld/HP ld/etc and these
conditionally change the behavior of other macros defined in the core code.
In the past, Jeff Law stated that this wasn't worth doing.  At the moment,
my primary focus is on fixing bugs and regressions, and getting libjava
working under hpux.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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On Sat, Jan 07, 2006 at 01:05:11AM -0800, Steve Langasek wrote:
> Grant, thank you for your work to date on this bug.  (BTW, it would be
> helpful if you would follow up to bug #342545 on libgcc2, instead of bug
> #341675 which is filed against just one of the many packages affected by
> it).

Steve,
welcome!
I'm just replying to what was already on the CC list.
I've also added parisc-linux mailing list since this may involve
kernel and/or need FP unit expertise that I don't have.

> Unfortunately, it doesn't seem from the bug log as though much progress is
> being made towards a resolution.

We (several hppa developers) are working on it.
But keep in mind this is a hobby for all of us.

> At this point, the KDE transition has
> been completed in testing for all architectures, with the exception of hppa
> as a result of this bug.  The release team is already moving on to other
> transitions that need to happen for etch, including another round of
> dbus-related KDE changes.

My opinion: release team should move on and ignore hppa until this is
resolved. If it doesn't get resolved in the next couple of weeks
(say by Feb or mid-Feb), then drop hppa from etch. But I'm not
a DD and don't want to know the politics involved. Just my $0.02.

> This is a release-critical bug, and it is impacting hppa's ability to keep
> up with etch at large, extending even to such core packages as aptitude
> (build-depends on cppunit; now uninstallable in testing on hppa).

*nod* - I saw the KDE dependency already.

>  Is there
> progress being made on this bug that's not shown in the bug log, or do we
> need to consider dropping hppa from the list of etch release archs at this
> point?

Yes, we are making progress - nothing new to report since last week.
I'm looking at it today and will consult with other hppa developers
once I have more data later today.

And as noted above, I think release team should informally ignore
hppa until this is resolved and we catch up again. But I don't know
what the politics or policys in Debian allow for. I'm just a (mostly)
happy debian user and upstream (hppa) maintainer.

thanks,
grant


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On Sat, Jan 07, 2006 at 05:41:52PM -0500, John David Anglin wrote:
> > strtold will never work, gcc and libc have different sizes for long
> > double. This is probably a side-effect of this.
> 
> I'm not sure what has changed but this is the source of a number
> of gfortran and libstdc++ regressions when using the current version
> of libc in unstable.

strold has always done funny things in the glibc testsuite, consider
yourself lucky.
 
> > If we really want long double to work we need to do something like set
> > it to be the same as double.
> 
> Long double has always been the same as double in GCC.  It allowed
> by the C and C++ standards.  It fast and the hardware and corner
> cases are well understood.

So long doubles have always been DFmode in GCC, okay, I thought it was
something else.

glibc thinks long double is 128-bit. If you want strtold to work then I
need to make the changes in glibc.

> I've given up hope that HP will release their IEEE long double emulation
> code for PA-RISC.  Although I don't have any hard evidence of bugs in it,
> there is the suggestion from the ada testsuite run under hpux that there
> may be bugs in the rounding and exception support.

I agree, I don't think it will ever be released. If it is released then
we'll jigger it out some other way :)

> > 128-bit long double is just going to be a pain, and I don't know how
> > well the 80-bit long double from IBM supports IEEE modes.
> 
> The only viable alternatives at this point are:
> 
>   1) long double == double (64 bit long double), or
>   2) IBM 128-bit double double implementation used by powerpc.

Or write our own library! ;-)

> After more than a year of using the double-double format, the powerpc
> folks are still working the bugs out from the corner cases.  While I
> guess it more or less works, I wouldn't want to rely on it for
> critical calculations.  RTH recented indicated that this would be a
> poor choice for another port in the same situation.  The same viewpoint
> was expressed to me by an Ada maintainer at the last GCC summit.  Ada
> probably has the best numerics support in GCC.

I say we go for (1).

> There is no support for the 80-bit format (either in hardware or
> software) on PA-RISC as far as I know.  So, this alternative isn't viable.

Okay.

> C99 requires long double support.  Thus, I believe we should go with
> option 1 and libc should be changed.  We aren't the only target with
> this problem, so there must be some libc support for 64-bit long double.

I believe it will only require removing the implies line for ldbl-128
from glibc.

I am building you a new debian glibc based on 2.3.5-8 for you to test,
would this be good?

c.

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On Sat, Jan 07, 2006 at 07:08:49PM -0500, John David Anglin wrote:
> > > Do you also have a fix for FP exception support?
> > 
> > Do you refer to the fenv_t align problems?
> 
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=327351.  Vaguely
> I thought that there might have been a similar issue in fesetexceptflag
> or feraiseexcept.

Two problems:

a) GCC optimizing away code.
	- Fixed by using struct and memory clobber.
b) Unaligned fenv_t
	- Fixed by copying to temporarily aligned structure.

Both patches are included in my new debian glibc package.
That is not to say that fpu/* code is correct, there were always
failures in the testsuite that come and go changing with time.

c.

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Updated glibc 2.3.5-8.1

Contains the following extra fixes:

- Added relocation support for:
	= DIR21L, DIR14R, PLABEL21L, PLABEL21R.

- Fixed return value restore in syscall cancellation

- Probably messed up fpu code but made it more compliant
  with the fr0 save/restore of T-bit.

- Removed implied routines for 128-bit long double, default
  should be whatever gcc uses for long double (DFmode).

Update located:
http://www.parisc-linux.org/~carlos/glibc-work/glibc-2.3.5-debs-2006-01-07/

I have this running on my local system without problems.
I'm testing the NPTL/TLS toolchain using this as my system libc.

Dave could you please test if this fixes the strtold failures?

This is probably the patch set I will send upstream.

Cheers,
Carlos.
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Anybody know why mozilla doesn't work on parisc but firefox does?

I did my standard Xnest test to make sure my environment could run all
the standard tools and network applications.

c.
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On Mon, Dec 26, 2005 at 04:47:20PM -0500, John David Anglin wrote:
> I'm seeing the following error in the boot log:
> 
> Fri Nov 25 04:59:01 2005: Starting Name Service Cache Daemon: nscd/usr/sbin/nscd
> : error while loading shared libraries: unexpected reloc type 0x42
> Fri Nov 25 04:59:02 2005: .
> 
> I think this is a R_PARISC_PLABEL21L reloc.  GCC doesn't generate these.
> So they must come from an asm or assembly code.  I think libc used this
> reloc for loading the address of the function descriptor of main.

This is what happens when GCC starts compiling things with -fpie I
believe. I saw this problem with the -fpie tests.

I have patches for libc to fix this in debian. I'll post these after I
get you to test them ... mmm kay? :)

c.
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On Sat, Jan 07, 2006 at 06:42:30PM -0500, Carlos O'Donell wrote:
...
> > I've given up hope that HP will release their IEEE long double emulation
> > code for PA-RISC.  Although I don't have any hard evidence of bugs in it,
> > there is the suggestion from the ada testsuite run under hpux that there
> > may be bugs in the rounding and exception support.
> 
> I agree, I don't think it will ever be released. If it is released then
> we'll jigger it out some other way :)

Me too. But I wouldn't worry about an ABI event too much.
As long as the only dependency is debian/gentoo packages,
then I think we can tolerate an ABI event like this on the
next OS release if necessary.

grant
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Binutils is good to go with a recent merge at 2005-12-10.
GCC is working from our CVS, but the merge is 7 months old and based on
the 4.0.0 release.

GLIBC is merge from 2005-06-08 and I have tls+linuxthreads working
without many failures:
---
make[2]: *** [/glibc/math/atest-exp2.out] Error 136
make[2]: *** [/glibc/math/test-float.out] Error 136
make[2]: *** [/glibc/math/test-double.out] Error 1
make[2]: *** [/glibc/math/test-ifloat.out] Error 136
make[2]: *** [/glibc/math/test-idouble.out] Error 1
make[1]: *** [math/tests] Error 2
make[2]: *** [/glibc/linuxthreads/tst-attr1.out] Error 1
make[1]: *** [linuxthreads/tests] Error 2
make[2]: *** [/glibc/elf/tst-array1.out] Error 1
make[2]: *** [/glibc/elf/tst-array2.out] Error 1
make[2]: *** [/glibc/elf/tst-array3.out] Error 1
make[2]: *** [/glibc/elf/tst-array4.out] Error 1
make[2]: *** [/glibc/elf/tst-array1-static.out] Error 1
make[2]: *** [/glibc/elf/order.out] Error 1
make[2]: *** [/glibc/elf/nodelete2.out] Error 1
make[2]: *** [/glibc/elf/tst-align2.out] Error 1
make[2]: *** [/glibc/elf/order2.out] Error 1
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2
---
The FPU code is a bit borked right now and needs review, I tried
incorporating my changes and Daniel's alignment patch but it didn't work
out very well.

The linuxthreads tst-attr1 test is unclassified.

The elf related failures are relatively new and related to binutils.
---

I'm going to run the NPTL build and see how the tests turn out.

Anyone remember what the next step was?

Cheers,
Carlos.
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for some reason the attached test case (originally from LTP) segfaults on 
glibc/hppa systems ... every other arch ive tested on works fine ...

for example, a good run would be:
$ gcc errno.c -o errno ; ./errno ; echo $?
0

on hppa, i get:
$ gcc errno.c -o errno ; ./errno ; echo $?
Segmentation fault

tested on Debian (glibc 2.3.5-11) and Gentoo (glibc 2.3.4.20040808-r1), both 
fail in the same way:
Program received signal SIGSEGV, Segmentation fault.
0x40538990 in __errno_location () from /lib/libc.so.6
(gdb) bt
#0  0x40538990 in __errno_location () from /lib/libc.so.6
#1  0x40538748 in __libc_start_main () from /lib/libc.so.6
#2  0x00010644 in main ()
-mike

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/* based originally on one the clone tests in the LTP */

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sched.h>

int child_fn(void *arg)
{
	fprintf(stderr, "in child_fn\n");
	exit(1);
}

int main(void)
{
	int r_clone, ret_errno;

	r_clone = clone(child_fn, NULL, (int) NULL, NULL);
	ret_errno = errno;
	if (ret_errno != EINVAL || r_clone != -1) {
		fprintf(stderr, "clone: res=%d (wanted -1) errno=%d (wanted %d)\n",
			r_clone, errno, EINVAL);
		return 1;
	}

	return 0;
}

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> I believe it will only require removing the implies line for ldbl-128
> from glibc.

Excellent.

> I am building you a new debian glibc based on 2.3.5-8 for you to test,
> would this be good?

Yes.

Do you also have a fix for FP exception support?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Dec 27, 2005 at 01:15:01PM -0500, John David Anglin wrote:
> > good news though, when i mentioned this before:
> > http://lists.parisc-linux.org/pipermail/parisc-linux/2005-July/026865.html
> > people said it's in the works to be fixed :)
> 
> It seems this issue has fallen through the cracks.  I know Carlos has
> been busy finishing up his thesis.  The relocation problem is a separate
> issue from PIE support as it could arise independently.

But AFAIR with the relocation support in place PIE just works (tm).

c.

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Subject: Re: [parisc-linux] Re: nscd: error while loading shared libraries:
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On Mon, Dec 26, 2005 at 04:54:42PM -0500, John David Anglin wrote:
> > So they must come from an asm or assembly code.  I think libc used this
> > reloc for loading the address of the function descriptor of main.
> 
> objdump -R nscd
> ...
> 00005970 R_PARISC_PLABEL21L  main
> 00005974 R_PARISC_PLABEL14R  main
> 00005980 R_PARISC_PLABEL21L  __libc_csu_init
> 00005984 R_PARISC_PLABEL14R  __libc_csu_init
> 00005988 R_PARISC_PLABEL21L  __libc_csu_fini
> 0000598c R_PARISC_PLABEL14R  __libc_csu_fini
> 
> If I recall correctly, there was a dynamic loader fix to handle these
> relocations.  However, it doesn't seem to be in libc6 2.3.5-8.

It is in the one I have installed on my system :)

The proper fix was this:
http://cvs.parisc-linux.org/glibc/sysdeps/hppa/elf/start.S?r1=1.2&r2=1.3

Please verify.

c.

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> So long doubles have always been DFmode in GCC, okay, I thought it was
> something else.

linux long doubles are DFmode (hardware+kernel support).  hpux long
doubles are TFmode (software emulation).  Sometimes I wish there was
an option to switch between hardware and software long doubles on
hpux.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > Do you also have a fix for FP exception support?
> 
> Do you refer to the fenv_t align problems?

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=327351.  Vaguely
I thought that there might have been a similar issue in fesetexceptflag
or feraiseexcept.

Dave
-- 
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> The proper fix was this:
> http://cvs.parisc-linux.org/glibc/sysdeps/hppa/elf/start.S?r1=1.2&r2=1.3
> 
> Please verify.

Looks right.

Dave
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> I have this running on my local system without problems.
> I'm testing the NPTL/TLS toolchain using this as my system libc.
> 
> Dave could you please test if this fixes the strtold failures?

Here are the before and after results:

http://gcc.gnu.org/ml/gcc-testresults/2006-01/msg00364.html
http://gcc.gnu.org/ml/gcc-testresults/2006-01/msg00386.html

It looks like all the strtold failures in the libstdc++ tests are fixed.
However, we have some new failures:

FAIL: gfortran.fortran-torture/execute/power.f90 execution,  -O0 
FAIL: gfortran.fortran-torture/execute/power.f90 execution,  -O1 
FAIL: gfortran.fortran-torture/execute/power.f90 execution,  -O2 
FAIL: gfortran.fortran-torture/execute/power.f90 execution,  -O3 -fomit-frame-pointer 
FAIL: gfortran.fortran-torture/execute/power.f90 execution,  -O3 -fomit-frame-pointer -funroll-loops 
FAIL: gfortran.fortran-torture/execute/power.f90 execution,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions 
FAIL: gfortran.fortran-torture/execute/power.f90 execution,  -O3 -g 
FAIL: gfortran.fortran-torture/execute/power.f90 execution,  -Os 

FAIL: 26_numerics/complex/13450.cc execution test

There are also some other changes in the gfortran tests (header
optimization issues?).

I've looked at 6_numerics/complex/13450.cc at bit:

strace ./13450.xg
...
mmap(NULL, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40003000
--- SIGFPE (Floating point exception) @ 0 (0) ---
+++ killed by SIGFPE (core dumped) +++

(gdb) r
Starting program: /home/dave/gnu/gcc-4.0/objdir/hppa-linux/libstdc++-v3/testsuite/13450.xg

Program received signal SIGFPE, Arithmetic exception.
0x407efaa8 in __ieee754_expf (x=1.62841105)
    at ../sysdeps/ieee754/flt-32/e_expf.c:95
95      ../sysdeps/ieee754/flt-32/e_expf.c: No such file or directory.
    in ../sysdeps/ieee754/flt-32/e_expf.c
Current language:  auto; currently c
(gdb) bt
#0  0x407efaa8 in __ieee754_expf (x=1.62841105)
    at ../sysdeps/ieee754/flt-32/e_expf.c:95
#1  0x407f96ec in __cexpf (x=The value of variable 'x' is distributed across several
locations, and GDB cannot access its value.

) at ../sysdeps/generic/s_cexpf.c:41
#2  0x407fb5e8 in __cpowf (c=The value of variable 'c' is distributed across several
locations, and GDB cannot access its value.

) at ../sysdeps/generic/s_cpowf.c:28
#3  0x0001dba8 in test01_do<float> (a=-3.20000005, b=Cannot access memory at address 0x4
) at complex:966
#4  0x0001e13c in test01 ()
    at /home/dave/gnu/gcc-4.0/gcc/libstdc++-v3/testsuite/26_numerics/complex/13450.cc:54
#5  0x0001e13c in test01 ()
    at /home/dave/gnu/gcc-4.0/gcc/libstdc++-v3/testsuite/26_numerics/complex/13450.cc:54

Previous frame identical to this frame (corrupt stack?)
(gdb) disass 0x407efa88 0x407efac8
Dump of assembler code from 0x407efa88 to 0x407efac8:
0x407efa88 <__ieee754_expf+108>:        b,l 0x407ce1cc <__ieee754_acos+5136>,rp
0x407efa8c <__ieee754_expf+112>:        ldi 0,r26
0x407efa90 <__ieee754_expf+116>:        addil -1000,r4,%r1
0x407efa94 <__ieee754_expf+120>:        ldw 51c(,r1),r20
0x407efa98 <__ieee754_expf+124>:        fldw 0(,r20),fr22
0x407efa9c <__ieee754_expf+128>:        fmpy,sgl fr12,fr22,fr22
0x407efaa0 <__ieee754_expf+132>:        addil -1000,r4,%r1
0x407efaa4 <__ieee754_expf+136>:        ldw 520(,r1),r20
0x407efaa8 <__ieee754_expf+140>:        fldw 0(,r20),fr23
0x407efaac <__ieee754_expf+144>:        fadd,sgl fr22,fr23,fr25
0x407efab0 <__ieee754_expf+148>:        fsub,sgl fr25,fr23,fr25
0x407efab4 <__ieee754_expf+152>:        fcnvff,sgl,dbl fr12,fr24
0x407efab8 <__ieee754_expf+156>:        fcnvff,sgl,dbl fr25,fr23
0x407efabc <__ieee754_expf+160>:        addil -1000,r4,%r1
0x407efac0 <__ieee754_expf+164>:        ldw 524(,r1),r20
0x407efac4 <__ieee754_expf+168>:        fldd 0(,r20),fr22
End of assembler dump.
(gdb) p/x $r20
$2 = 0x40835264
(gdb) x/x 0x40835264
0x40835264 <M_LN2___5+12>:      0x4b400000

I suspect a kernel or gdb issue wrt the floating-point exception
registers:

(gdb) info reg all
...
mpsfu_high     0x0      0
mpsfu_low      0x0      0
mpsfu_ovflo    0x0      0
pad            0x0      0
fpsr           0x0      0
fpe1           0x0      0
fpe2           0x0      0
fpe3           0x0      0
fpe4           0x0      0
fpe5           0x0      0
fpe6           0x0      0
fpe7           0x0      0

The operands for the previous fmpy insn seem ok.  It's interesting
that when I single step from the fmpy that I don't see the result
in fr22 until after the SIGFPE.  It sort of looks like the exception
must be in __ieee754_acos.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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	Anglin" at Jan 8, 2006 02:03:31 pm
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> in fr22 until after the SIGFPE.  It sort of looks like the exception
> must be in __ieee754_acos.

Take that back.  The function calls feholdexcept (envp=0xc04fba68)
and then fesetround (round=0) before the arithmetic exception.

(gdb) p/x *envp
$2 = {__status_word = 0x1, __exception = {0x40000360, 0x1, 0x40000360,
    0x4033af90, 0x4084c6b8, 0x4084c6b8, 0x0}}

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] [PATCH 4/5] Convert x86_64 to use generic
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From: Kyle McMartin <kyle@parisc-linux.org>

Convert arch/x86_64 to use generic compat_siginfo_t.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

Andi,

I've done testing of this using my x86-64 machine, and it seems to survive
the GCC testsuite, which seemed to be a rather signal heavy workload. If you
would prefer me to run something else to test, let me know, I'd be more
than happy to.

 arch/x86_64/ia32/ia32_signal.c |    1 +
 include/asm-x86_64/compat.h    |    3 ++
 include/asm-x86_64/ia32.h      |   53 +---------------------------------------
 3 files changed, 5 insertions(+), 52 deletions(-)

82a78ba45a265996a8a8d5ffdcea568f3fe07c1f
diff --git a/arch/x86_64/ia32/ia32_signal.c b/arch/x86_64/ia32/ia32_signal.c
index 0903cc1..b02cfe4 100644
--- a/arch/x86_64/ia32/ia32_signal.c
+++ b/arch/x86_64/ia32/ia32_signal.c
@@ -23,6 +23,7 @@
 #include <linux/stddef.h>
 #include <linux/personality.h>
 #include <linux/compat.h>
+#include <linux/compat_siginfo.h>
 #include <asm/ucontext.h>
 #include <asm/uaccess.h>
 #include <asm/i387.h>
diff --git a/include/asm-x86_64/compat.h b/include/asm-x86_64/compat.h
index f0155c3..7e0a7fb 100644
--- a/include/asm-x86_64/compat.h
+++ b/include/asm-x86_64/compat.h
@@ -16,6 +16,9 @@ typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
 typedef u16		__compat_gid_t;
+/* Define for use in compat_siginfo_t */
+#undef __ARCH_SI_COMPAT_UID_T
+#define __ARCH_SI_COMPAT_UID_T __compat_uid32_t
 typedef u32		__compat_uid32_t;
 typedef u32		__compat_gid32_t;
 typedef u16		compat_mode_t;
diff --git a/include/asm-x86_64/ia32.h b/include/asm-x86_64/ia32.h
index c7bc9c0..d9a32d5 100644
--- a/include/asm-x86_64/ia32.h
+++ b/include/asm-x86_64/ia32.h
@@ -6,6 +6,7 @@
 #ifdef CONFIG_IA32_EMULATION
 
 #include <linux/compat.h>
+#include <linux/compat_siginfo.h>
 
 /*
  * 32 bit structures for IA32 support.
@@ -78,58 +79,6 @@ struct stat64 {
 	unsigned long long	st_ino;
 } __attribute__((packed));
 
-typedef struct compat_siginfo{
-	int si_signo;
-	int si_errno;
-	int si_code;
-
-	union {
-		int _pad[((128/sizeof(int)) - 3)];
-
-		/* kill() */
-		struct {
-			unsigned int _pid;	/* sender's pid */
-			unsigned int _uid;	/* sender's uid */
-		} _kill;
-
-		/* POSIX.1b timers */
-		struct {
-			compat_timer_t _tid;	/* timer id */
-			int _overrun;		/* overrun count */
-			compat_sigval_t _sigval;	/* same as below */
-			int _sys_private;	/* not to be passed to user */
-			int _overrun_incr;	/* amount to add to overrun */
-		} _timer;
-
-		/* POSIX.1b signals */
-		struct {
-			unsigned int _pid;	/* sender's pid */
-			unsigned int _uid;	/* sender's uid */
-			compat_sigval_t _sigval;
-		} _rt;
-
-		/* SIGCHLD */
-		struct {
-			unsigned int _pid;	/* which child */
-			unsigned int _uid;	/* sender's uid */
-			int _status;		/* exit code */
-			compat_clock_t _utime;
-			compat_clock_t _stime;
-		} _sigchld;
-
-		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
-		struct {
-			unsigned int _addr;	/* faulting insn/memory ref. */
-		} _sigfault;
-
-		/* SIGPOLL */
-		struct {
-			int _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
-			int _fd;
-		} _sigpoll;
-	} _sifields;
-} compat_siginfo_t;

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Subject: [parisc-linux] [PATCH 3/5] Fix generic compat_siginfo_t on s390 and
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From: Carlos O'Donell <carlos@parisc-linux.org>

Define types needed for generic compat_siginfo_t on s390 and sparc64.

Signed-off-by: Carlos O'Donell <carlos@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

 include/asm-s390/compat.h    |    3 +++
 include/asm-sparc64/compat.h |    3 +++
 2 files changed, 6 insertions(+), 0 deletions(-)

c5833cf4215cfbab87f83d32520251da5631355f
diff --git a/include/asm-s390/compat.h b/include/asm-s390/compat.h
index a007715..38b1165 100644
--- a/include/asm-s390/compat.h
+++ b/include/asm-s390/compat.h
@@ -15,6 +15,9 @@ typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
 typedef u16		__compat_gid_t;
+/* Define for use in compat_siginfo_t */
+#undef __ARCH_SI_COMPAT_UID_T
+#define __ARCH_SI_COMPAT_UID_T __compat_uid32_t
 typedef u32		__compat_uid32_t;
 typedef u32		__compat_gid32_t;
 typedef u16		compat_mode_t;
diff --git a/include/asm-sparc64/compat.h b/include/asm-sparc64/compat.h
index c73935d..06fbfb8 100644
--- a/include/asm-sparc64/compat.h
+++ b/include/asm-sparc64/compat.h
@@ -14,6 +14,9 @@ typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
 typedef u16		__compat_gid_t;
+/* Define for use in the compat_siginfo_t */
+#undef __ARCH_SI_COMPAT_UID_T
+#define __ARCH_SI_COMPAT_UID_T compat_uint_t
 typedef u32		__compat_uid32_t;
 typedef u32		__compat_gid32_t;
 typedef u16		compat_mode_t;
-- 
1.0.7

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Xref: news.gmane.org gmane.linux.ports.parisc:23359

From: Kyle McMartin <kyle@parisc-linux.org>

A nice cleanup of evdev.c by using the is_compat_task() macro.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

 drivers/input/evdev.c |   18 +++---------------
 1 files changed, 3 insertions(+), 15 deletions(-)

3e7a8822763c01f93afdb2f0011dec6b641df1fb
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index f7490a0..3cabb4b 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -154,27 +154,15 @@ struct input_event_compat {
 	__s32 value;
 };
 
-#ifdef CONFIG_X86_64
-#  define COMPAT_TEST test_thread_flag(TIF_IA32)
-#elif defined(CONFIG_IA64)
-#  define COMPAT_TEST IS_IA32_PROCESS(ia64_task_regs(current))
-#elif defined(CONFIG_S390)
-#  define COMPAT_TEST test_thread_flag(TIF_31BIT)
-#elif defined(CONFIG_MIPS)
-#  define COMPAT_TEST (current->thread.mflags & MF_32BIT_ADDR)
-#else
-#  define COMPAT_TEST test_thread_flag(TIF_32BIT)
-#endif
-
 static inline size_t evdev_event_size(void)
 {
-	return COMPAT_TEST ?
+	return is_compat_task(current) ?
 		sizeof(struct input_event_compat) : sizeof(struct input_event);
 }
 
 static int evdev_event_from_user(const char __user *buffer, struct input_event *event)
 {
-	if (COMPAT_TEST) {
+	if (is_compat_task(current)) {
 		struct input_event_compat compat_event;
 
 		if (copy_from_user(&compat_event, buffer, sizeof(struct input_event_compat)))
@@ -196,7 +184,7 @@ static int evdev_event_from_user(const c
 
 static int evdev_event_to_user(char __user *buffer, const struct input_event *event)
 {
-	if (COMPAT_TEST) {
+	if (is_compat_task(current)) {
 		struct input_event_compat compat_event;
 
 		compat_event.time.tv_sec = event->time.tv_sec;
-- 
1.0.7

_______________________________________________
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Xref: news.gmane.org gmane.linux.ports.parisc:23360

From: Carlos O'Donell <carlos@parisc-linux.org>

Almost all the linux arches have exactly the same definition
for many of the compat structures. In almost all situations the
compiler can generate code to copy element by element. This
element by element copy is generic enough that it can be 
used in asm-generic. It is generic enough that it can already
be used by many architectures.

This patch creates an is_compat_task macro to check if
the process personality is native and thus allows various
routines to call either a compat copy or a regular copy.
Since is_compat_task evaluates to zero in the non-compat
case the compiler removes the code.

The patch centralizes the signal compat structures into
include/linux/compat_siginfo.h, and creates kernel/compat_signal.c
to place all the generic copy routines for signal related compat.
Code that requires signal compat structures can include them if 
needed.

HAVE_* macros are provided for arches to override the current
macro definitions. This gives arch maintainers the flexibility
of special case processing.

By making compat code more generic we reduce the number 
of arch specific bugs and allow kernel maintainers to 
provide generic tested compat versions of various routines.
While still allowing arch maintainers the ability to override
them with custom fixes.

Signed-off-by: Carlos O'Donell <carlos@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

Andrew,

Please incorporate this patch series in -mm.

This is the last major piece of divergence from the parisc-linux tree. All
parisc64 machines require this change to be usable from mainline, so this
is quite an important series if we ever want to be fully functional from
mainline. I believe there's now sufficient ability for architectures to
override functionality that all previous objections to these changes have
been addressed.

Arch maintainers will likely want to redefine is_compat_task() to
inspect a more correct personality.

 include/asm-generic/compat_signal.h |   25 +++
 include/linux/compat.h              |   39 ++---
 include/linux/compat_siginfo.h      |  182 +++++++++++++++++++++++
 include/linux/signal.h              |    3 
 ipc/compat_mq.c                     |    1 
 kernel/Makefile                     |    2 
 kernel/compat.c                     |   47 ++++++
 kernel/compat_signal.c              |  280 +++++++++++++++++++++++++++++++++++
 kernel/ptrace.c                     |    2 
 kernel/signal.c                     |   21 +++
 10 files changed, 570 insertions(+), 32 deletions(-)
 create mode 100644 include/asm-generic/compat_signal.h
 create mode 100644 include/linux/compat_siginfo.h
 create mode 100644 kernel/compat_signal.c

a0019dc539d22a19c39dcb18e636fbeadfcec759
diff --git a/include/asm-generic/compat_signal.h b/include/asm-generic/compat_signal.h
new file mode 100644
index 0000000..889d57f
--- /dev/null
+++ b/include/asm-generic/compat_signal.h
@@ -0,0 +1,25 @@
+#ifndef _ASM_GENERIC_COMPAT_SIGNAL_H
+#define _ASM_GENERIC_COMPAT_SIGNAL_H
+
+#ifndef __ASSEMBLY__
+#include <linux/compat.h>
+
+typedef compat_uptr_t compat_sighandler_t;
+
+typedef struct compat_sigaltstack {
+	compat_uptr_t ss_sp;
+	compat_int_t ss_flags;
+	compat_size_t ss_size;
+} compat_stack_t;
+
+/* Most things should be clean enough to redefine this at will, if care
+   is taken to make libc match.  */
+
+struct compat_sigaction {
+	compat_sighandler_t sa_handler;
+	compat_uint_t sa_flags;
+	compat_sigset_t sa_mask;		/* mask last for extensibility */
+};
+
+#endif /* !__ASSEMBLY__ */
+#endif /* !_ASM_GENERIC_COMPAT_SIGNAL_H */
diff --git a/include/linux/compat.h b/include/linux/compat.h
index f9ca534..1638fff 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -6,10 +6,16 @@
  */
 #include <linux/config.h>
 
-#ifdef CONFIG_COMPAT
+#ifndef CONFIG_COMPAT
+
+/* Non-native task requiring compat... doesn't exist */
+#define is_compat_task(x) 0
+
+#else
 
 #include <linux/stat.h>
 #include <linux/param.h>	/* for HZ */
+#include <linux/personality.h>  /* Conditional process compat */
 #include <linux/sem.h>
 
 #include <asm/compat.h>
@@ -18,6 +24,11 @@
 #define compat_jiffies_to_clock_t(x)	\
 		(((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
 
+/* Non-native task requiring compat */
+#ifndef HAVE_ARCH_IS_COMPAT_TASK
+#define is_compat_task(x) (personality(x->personality) == PER_LINUX32)
+#endif
+
 typedef __compat_uid32_t	compat_uid_t;
 typedef __compat_gid32_t	compat_gid_t;
 
@@ -99,28 +110,6 @@ struct compat_dirent {
 	char		d_name[256];
 };
 
-typedef union compat_sigval {
-	compat_int_t	sival_int;
-	compat_uptr_t	sival_ptr;
-} compat_sigval_t;
-
-#define COMPAT_SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE/sizeof(int)) - 3)
-
-typedef struct compat_sigevent {
-	compat_sigval_t sigev_value;
-	compat_int_t sigev_signo;
-	compat_int_t sigev_notify;
-	union {
-		compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
-		compat_int_t _tid;
-
-		struct {
-			compat_uptr_t _function;
-			compat_uptr_t _attribute;
-		} _sigev_thread;
-	} _sigev_un;
-} compat_sigevent_t;
-
 
 long compat_sys_semctl(int first, int second, int third, void __user *uptr);
 long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
@@ -156,10 +145,6 @@ long compat_get_bitmap(unsigned long *ma
 		       unsigned long bitmap_size);
 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
 		       unsigned long bitmap_size);
-int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
-int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
-int get_compat_sigevent(struct sigevent *event,
-		const struct compat_sigevent __user *u_event);
 
 #endif /* CONFIG_COMPAT */
 #endif /* _LINUX_COMPAT_H */
diff --git a/include/linux/compat_siginfo.h b/include/linux/compat_siginfo.h
new file mode 100644
index 0000000..38124cf
--- /dev/null
+++ b/include/linux/compat_siginfo.h
@@ -0,0 +1,182 @@
+#ifndef _ASM_GENERIC_COMPAT_SIGINFO_H
+#define _ASM_GENERIC_COMPAT_SIGINFO_H
+
+#include <linux/config.h>
+#include <linux/compat.h>
+
+#ifndef CONFIG_COMPAT
+
+/* No compatibility layer required, add empty definitions for the compiler */
+
+typedef struct compat_siginfo{
+} compat_siginfo_t;
+
+static inline int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, 
+						struct siginfo *from)
+{
+	return -1;
+}
+
+static inline int compat_copy_siginfo_from_user(struct siginfo *to,
+                                                compat_siginfo_t __user *from)
+{
+        return -1;
+}
+
+#else
+
+#include <linux/compiler.h>
+#include <asm/siginfo.h>
+
+/* compat view of sigval_t */
+typedef union compat_sigval {
+	compat_int_t sival_int;
+	compat_uptr_t sival_ptr;
+} compat_sigval_t;
+
+/*
+ * This is the size (including padding) of the part of the
+ * struct siginfo that is before the union.
+ */
+#ifndef __ARCH_SI_COMPAT_PREAMBLE_SIZE
+#define __ARCH_SI_COMPAT_PREAMBLE_SIZE	(3 * sizeof(compat_int_t))
+#endif
+
+#define SI_COMPAT_MAX_SIZE	128
+#ifndef SI_COMPAT_PAD_SIZE
+#define SI_COMPAT_PAD_SIZE \
+  ((SI_COMPAT_MAX_SIZE - __ARCH_SI_COMPAT_PREAMBLE_SIZE) / sizeof(compat_int_t))
+#endif
+
+/* 32-bit view of si.uid_t */
+#ifndef __ARCH_SI_COMPAT_UID_T
+#define __ARCH_SI_COMPAT_UID_T compat_uid_t
+#endif
+
+/* 32-bit view of si.band_t */
+#ifndef __ARCH_SI_COMPAT_BAND_T
+#define __ARCH_SI_COMPAT_BAND_T compat_int_t
+#endif
+
+#ifndef HAVE_ARCH_COMPAT_SIGINFO_T
+
+/* Compat view of siginfo_t */
+typedef struct compat_siginfo {
+	compat_int_t si_signo;
+	compat_int_t si_errno;
+	compat_int_t si_code;
+
+	union {
+		compat_int_t _pad[SI_COMPAT_PAD_SIZE];
+
+		/* kill() */
+		struct {
+			compat_pid_t _pid;	/* sender's pid */
+			__ARCH_SI_COMPAT_UID_T _uid;	/* sender's uid */
+		} _kill;
+
+		/* POSIX.1b timers */
+		struct {
+			compat_timer_t _tid;	/* timer id */
+			compat_int_t _overrun;		/* overrun count */
+			char _pad[sizeof(__ARCH_SI_COMPAT_UID_T) - sizeof(compat_int_t)];
+			compat_sigval_t _sigval;	/* same as below */
+			compat_int_t _sys_private;       /* not to be passed to user */
+		} _timer;
+
+		/* POSIX.1b signals */
+		struct {
+			compat_pid_t _pid;		/* sender's pid */
+			__ARCH_SI_COMPAT_UID_T _uid;	/* sender's uid */
+			compat_sigval_t _sigval;
+		} _rt;
+
+		/* SIGCHLD */
+		struct {
+			compat_pid_t _pid;		/* which child */
+			__ARCH_SI_COMPAT_UID_T _uid;	/* sender's uid */
+			compat_int_t _status;		/* exit code */
+			compat_clock_t _utime;
+			compat_clock_t _stime;
+		} _sigchld;
+
+		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
+		struct {
+			compat_uptr_t _addr; /* faulting insn/memory ref. */
+#ifdef __ARCH_SI_COMPAT_TRAPNO
+			compat_int_t _trapno;	/* TRAP # which caused the signal */
+#endif
+		} _sigfault;
+
+		/* SIGPOLL */
+		struct {
+			__ARCH_SI_COMPAT_BAND_T _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
+			compat_int_t _fd;
+		} _sigpoll;
+	} _sifields;
+} compat_siginfo_t;
+#endif /* !HAVE_ARCH_COMPAT_SIGINFO_T */
+
+#ifdef __ARCH_SI_COMPAT_TRAPNO
+#define si_trapno	_sifields._sigfault._trapno
+#endif
+
+/*
+ * sigevent definitions
+ * 
+ * It seems likely that SIGEV_THREAD will have to be handled from 
+ * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
+ * thread manager then catches and does the appropriate nonsense.
+ * However, everything is written out here so as to not get lost.
+ */
+
+#ifndef __ARCH_SIGEV_COMPAT_PREAMBLE_SIZE
+#define __ARCH_SIGEV_COMPAT_PREAMBLE_SIZE (sizeof(compat_int_t) * 2 + sizeof(compat_sigval_t))
+#endif
+
+#define COMPAT_SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE/sizeof(int)) - 3)
+
+#ifndef HAVE_ARCH_COMPAT_SIGEVENT_T
+
+/* 32-bit view of sigevent_t */
+typedef struct compat_sigevent {
+	compat_sigval_t sigev_value;
+	compat_int_t sigev_signo;
+	compat_int_t sigev_notify;
+	union {
+		compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
+		compat_int_t _tid;
+
+		struct {
+			compat_uptr_t _function;
+			compat_uptr_t _attribute;  /* really pthread_attr_t */
+		} _sigev_thread;
+	} _sigev_un;
+} compat_sigevent_t;
+
+#endif /* HAVE_ARCH_COMPAT_SIGEVENT_T */
+
+#ifndef HAVE_ARCH_COMPAT_COPY_SIGINFO
+
+#include <linux/string.h>
+
+static inline void compat_copy_siginfo(struct compat_siginfo *to, struct compat_siginfo *from)
+{
+	if (from->si_code < 0)
+		memcpy(to, from, sizeof(*to));
+	else
+		/* _sigchld is currently the largest know union member */
+		memcpy(to, from, __ARCH_SI_COMPAT_PREAMBLE_SIZE + sizeof(from->_sifields._sigchld));
+}
+
+#endif /* !HAVE_ARCH_COMPAT_COPY_SIGINFO */
+
+extern int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, struct siginfo *from);
+extern int compat_copy_siginfo_from_user(struct siginfo *to, compat_siginfo_t __user *from);
+
+extern int compat_copy_sigevent_from_user(struct sigevent *to, compat_sigevent_t __user *from);
+extern int compat_copy_sigevent_to_user(compat_sigevent_t __user *to, struct sigevent *from);
+
+#endif /* CONFIG_COMPAT */
+#endif /* _ASM_GENERIC_COMPAT_SIGINFO_H */
+
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 5dd5f02..2127cc1 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -233,6 +233,9 @@ extern int sigprocmask(int, sigset_t *, 
 struct pt_regs;
 extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, struct pt_regs *regs, void *cookie);
 
+int copy_siginfo_from_user(siginfo_t *to, siginfo_t __user *from);
+int copy_siginfo_to_user(siginfo_t __user *to, siginfo_t *from);
+
 #endif /* __KERNEL__ */
 
 #endif /* _LINUX_SIGNAL_H */
diff --git a/ipc/compat_mq.c b/ipc/compat_mq.c
index d8d1e9f..41572f3 100644
--- a/ipc/compat_mq.c
+++ b/ipc/compat_mq.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/compat.h>
+#include <linux/compat_siginfo.h>
 #include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/mqueue.h>
diff --git a/kernel/Makefile b/kernel/Makefile
index 4f5a145..cf7357d 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -19,7 +19,7 @@ obj-$(CONFIG_KALLSYMS) += kallsyms.o
 obj-$(CONFIG_PM) += power/
 obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o
 obj-$(CONFIG_KEXEC) += kexec.o
-obj-$(CONFIG_COMPAT) += compat.o
+obj-$(CONFIG_COMPAT) += compat.o compat_signal.o
 obj-$(CONFIG_CPUSETS) += cpuset.o
 obj-$(CONFIG_IKCONFIG) += configs.o
 obj-$(CONFIG_STOP_MACHINE) += stop_machine.o
diff --git a/kernel/compat.c b/kernel/compat.c
index 102296e..862f821 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -13,6 +13,7 @@
 
 #include <linux/linkage.h>
 #include <linux/compat.h>
+#include <linux/compat_siginfo.h>
 #include <linux/errno.h>
 #include <linux/time.h>
 #include <linux/signal.h>
@@ -439,7 +440,11 @@ asmlinkage long compat_sys_waitid(int wh
 
 	BUG_ON(info.si_code & __SI_MASK);
 	info.si_code |= __SI_CHLD;
-	return copy_siginfo_to_user32(uinfo, &info);
+	
+	if (compat_copy_siginfo_to_user(uinfo, &info) != 0)
+		return -EFAULT;
+
+	return 0;
 }
 
 static int compat_get_user_cpu_mask(compat_ulong_t __user *user_mask_ptr,
@@ -651,6 +656,44 @@ int get_compat_sigevent(struct sigevent 
 
 /* timer_create is architecture specific because it needs sigevent conversion */
 
+long compat_sys_timer_create(clockid_t which_clock,
+			     compat_sigevent_t __user *timer_event_spec,
+			     compat_timer_t __user * created_timer_id)
+{
+	sigevent_t kevent;
+	timer_t ktimer;
+	mm_segment_t old_fs = get_fs();
+	long ret;
+
+	/* sigevent_t needs handling for 32-bit to 64-bit compat */
+	if (timer_event_spec != NULL)
+		if (compat_copy_sigevent_from_user(&kevent, timer_event_spec) != 0)
+			return -EFAULT;
+	
+	/* Timer ID is assumed to be a non-struct simple value */
+	if (created_timer_id != NULL)
+		if (__get_user(ktimer, created_timer_id) != 0)
+		  	return -EFAULT;
+
+	set_fs(KERNEL_DS);
+	ret = sys_timer_create(which_clock, 
+	    			timer_event_spec ? (sigevent_t __user *)&kevent : NULL, 
+	    			created_timer_id ? (timer_t __user *)&ktimer : NULL);
+	set_fs(old_fs);
+	
+	/* Copy back the results to userspace */
+	if (timer_event_spec != NULL)
+	  	if (compat_copy_sigevent_to_user(timer_event_spec, &kevent) != 0)
+			return -EFAULT;
+
+	if (created_timer_id != NULL)
+	  	if (__put_user(ktimer, created_timer_id) != 0)
+		  	return -EFAULT;
+	
+	return ret;
+}
+
+
 long compat_get_bitmap(unsigned long *mask, compat_ulong_t __user *umask,
 		       unsigned long bitmap_size)
 {
@@ -807,7 +850,7 @@ compat_sys_rt_sigtimedwait (compat_sigse
 	if (sig) {
 		ret = sig;
 		if (uinfo) {
-			if (copy_siginfo_to_user32(uinfo, &info))
+			if (compat_copy_siginfo_to_user(uinfo, &info))
 				ret = -EFAULT;
 		}
 	}else {
diff --git a/kernel/compat_signal.c b/kernel/compat_signal.c
new file mode 100644
index 0000000..20b6f00
--- /dev/null
+++ b/kernel/compat_signal.c
@@ -0,0 +1,280 @@
+/*
+ *  Copyright (C) 2003 Carlos O'Donell
+ * 
+ *  2003-12-20  Carlos O'Donell
+ *              Copied linux/kernel/compat_signal.c (copy_siginfo_to_user)
+ *              and modified to use compat_siginfo_t for thunking down to
+ *              32-bit userspace from a 64-bit kernel.
+ *              
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ *
+ */
+
+#include <linux/compat_siginfo.h>
+#include <asm/errno.h>
+#include <asm/uaccess.h>
+#include <asm/siginfo.h>
+
+#ifndef HAVE_ARCH_COMPAT_COPY_SIGINFO_TO_USER
+int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, siginfo_t *from)
+{
+	int err;
+	compat_siginfo_t compat_from;	
+
+	if (!access_ok (VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
+		return -EFAULT;
+	
+	/*
+	 * If you change compat_siginfo_t structure *or* siginfo_t, 
+	 * please be sure this code is fixed accordingly.
+	 * It should never copy any pad contained in the structure
+	 * to avoid security leaks, but must copy the generic
+	 * 3 ints plus the relevant union member.
+	 */
+
+	/* Convert structure, don't leak anything in the copy */
+	memset(&compat_from,'\0',sizeof(compat_siginfo_t));
+
+        /* Always copy si_signo, si_errno, and si_code */
+	compat_from.si_signo = (compat_int_t)(from->si_signo);
+	compat_from.si_errno = (compat_int_t)(from->si_errno);
+	/* si_code is only a (short) value, remove kernel bits. */
+	compat_from.si_code = (short)(from->si_code);
+        
+	err = __put_user(compat_from.si_signo, &to->si_signo);
+	err |= __put_user(compat_from.si_errno, &to->si_errno);
+	err |= __put_user(compat_from.si_code, &to->si_code);
+
+        /* siginfo_t came from userspace, so it is the right
+         * size, no need for conversion
+         */        
+	if (from->si_code < 0) {
+		return __copy_to_user(&to->_sifields._pad, 
+                                      &from->_sifields._pad, 
+                                      SI_COMPAT_PAD_SIZE)
+			? -EFAULT : 0;
+        }
+	
+	switch (from->si_code & __SI_MASK) {
+	case __SI_KILL:
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		break;
+	case __SI_TIMER:
+		compat_from.si_pid = (compat_timer_t)(from->si_tid);
+		compat_from.si_overrun = (compat_int_t)(from->si_overrun);
+		compat_from.si_ptr = (compat_uptr_t)((u64 __force)(from->si_ptr) & 0xffffffffUL);
+		err |= __put_user(compat_from.si_tid, &to->si_tid);
+		err |= __put_user(compat_from.si_overrun, &to->si_overrun);
+		err |= __put_user(compat_from.si_ptr, &to->si_ptr);
+		break;
+	case __SI_POLL:
+		compat_from.si_band = (__ARCH_SI_COMPAT_BAND_T)(from->si_band);
+		compat_from.si_fd = (compat_int_t)(from->si_fd);
+		err |= __put_user(compat_from.si_band, &to->si_band);
+		err |= __put_user(compat_from.si_fd, &to->si_fd);
+		break;
+	case __SI_FAULT:
+		compat_from.si_addr = (compat_uptr_t)((u64 __force)(from->si_addr) & 0xffffffffUL);
+		err |= __put_user(compat_from.si_addr, &to->si_addr);
+#ifdef __ARCH_SI_COMPAT_TRAPNO
+		compat_from.si_trapno = (compat_int_t)(from->si_addr);
+		err |= __put_user(compat_from.si_trapno, &to->si_trapno);
+#endif
+		break;
+	case __SI_CHLD:
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		compat_from.si_status = (compat_int_t)(from->si_status);
+		compat_from.si_utime = (compat_clock_t)(from->si_utime);
+		compat_from.si_stime = (compat_clock_t)(from->si_stime);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		err |= __put_user(compat_from.si_status, &to->si_status);
+		err |= __put_user(compat_from.si_utime, &to->si_utime);
+		err |= __put_user(compat_from.si_stime, &to->si_stime);
+		break;
+	case __SI_RT: /* This is not generated by the kernel as of now. */
+	case __SI_MESGQ: /* But this is */
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		compat_from.si_int = (compat_int_t)(from->si_int);
+		compat_from.si_ptr = (compat_uptr_t)((u64 __force)(from->si_ptr) & 0xffffffffUL);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		err |= __put_user(compat_from.si_int, &to->si_int);
+		err |= __put_user(compat_from.si_ptr, &to->si_ptr);
+		break;
+	default: /* this is just in case for now ... */
+		compat_from.si_pid = (compat_pid_t)(from->si_pid);
+		compat_from.si_uid = (__ARCH_SI_COMPAT_UID_T)(from->si_uid);
+		err |= __put_user(compat_from.si_pid, &to->si_pid);
+		err |= __put_user(compat_from.si_uid, &to->si_uid);
+		break;
+	}
+	return err;
+}
+#endif
+
+#ifndef HAVE_ARCH_COPY_SIGINFO_FROM_USER
+int compat_copy_siginfo_from_user(siginfo_t *to, compat_siginfo_t __user *from)
+{
+	int err;
+        u64 scratch;
+
+	if (!access_ok (VERIFY_READ, from, sizeof(compat_siginfo_t)))
+		return -EFAULT;
+	
+	/*
+	 * If you change compat_siginfo_t structure *or* siginfo_t, 
+	 * please be sure this code is fixed accordingly.
+	 */
+
+        /* Always copy si_signo, si_errno, and si_code */
+	err = __get_user(to->si_signo, &from->si_signo);
+	err |= __get_user(to->si_errno, &from->si_errno);
+	err |= __get_user(to->si_code, &from->si_code);
+        
+        /* siginfo_t came from userspace, so it is the right
+         * size, no need for conversion
+         */        
+	if (to->si_code < 0) {
+		return __copy_from_user(&to->_sifields._pad, 
+                                        &from->_sifields._pad, 
+                                        SI_COMPAT_PAD_SIZE)
+			? -EFAULT : 0;
+        }
+	
+	switch (to->si_code & __SI_MASK) {
+	case __SI_KILL:
+		err |= __get_user(to->si_pid, &from->si_pid);
+		err |= __get_user(to->si_uid, &from->si_uid);
+		break;
+	case __SI_TIMER:
+		err |= __get_user(to->si_tid, &from->si_tid);
+		err |= __get_user(to->si_overrun, &from->si_overrun);
+		err |= __get_user(scratch, &from->si_ptr);
+                to->si_ptr = (u64 __user*)scratch;                
+		break;
+	case __SI_POLL:
+		err |= __get_user(to->si_band, &from->si_band);
+		err |= __get_user(to->si_fd, &from->si_fd);
+		break;
+	case __SI_FAULT:
+		err |= __get_user(scratch, &from->si_addr);
+                to->si_addr = (u64 __user*)scratch;
+#ifdef __ARCH_SI_COMPAT_TRAPNO
+		err |= __get_user(to->si_trapno, &from->si_trapno);
+#endif
+		break;
+	case __SI_CHLD:
+		err |= __get_user(to->si_pid, &from->si_pid);
+		err |= __get_user(to->si_uid, &from->si_uid);
+		err |= __get_user(to->si_status, &from->si_status);
+		err |= __get_user(to->si_utime, &from->si_utime);
+		err |= __get_user(to->si_stime, &from->si_stime);
+		break;
+	case __SI_RT: /* This is not generated by the kernel as of now. */
+	case __SI_MESGQ: /* But this is */
+		err |= __get_user(to->si_pid, &from->si_pid);
+		err |= __get_user(to->si_uid, &from->si_uid);
+		err |= __get_user(to->si_int, &from->si_int);
+		err |= __get_user(scratch, &from->si_ptr);
+                to->si_ptr = (u64 __user*)scratch;
+		break;
+	default: /* this is just in case for now ... */
+		err |= __get_user(to->si_pid, &from->si_pid);
+		err |= __get_user(to->si_uid, &from->si_uid);
+		break;
+	}
+	return err;
+}
+#endif
+
+#ifndef HAVE_ARCH_COPY_SIGEVENT_FROM_USER
+int compat_copy_sigevent_from_user(sigevent_t *to, compat_sigevent_t __user *from)
+{
+	int err;
+	u64 scratch;
+	
+	/* copy sigval_t sigev_value 
+	 	int_t sival_int		(same)
+	 	uptr_t sival_ptr	(32 vs 64)*/
+	err = __get_user(to->sigev_value.sival_int, 
+	    		 &from->sigev_value.sival_int);
+	err |= __get_user(scratch, &from->sigev_value.sival_ptr);
+	to->sigev_value.sival_ptr = (u64 __user *)scratch;
+	
+	/* copy int_t sigev_signo 	(same)*/
+	err |= __get_user(to->sigev_signo, &from->sigev_signo);
+	
+	/* copy int_t sigev_notify	(same)*/
+	err |= __get_user(to->sigev_notify, &from->sigev_notify);
+
+	/* never copy _sigev_un padding */
+
+	/* copy int_t _tid 		(same),
+	   good_sigevent() uses this value of */
+	err |= __get_user(to->sigev_notify_thread_id, &from->sigev_notify_thread_id);
+	
+	/* XXX: Do not copy these, they aren't used by
+	   anyone. We would need to distinguish the uses of the union.
+	   copy _sigev_thread
+	  	uptr_t _function	(32 vs 64)
+	  	uptr_t _attribute	(32 vs 64)*/
+	
+	return err;
+}
+#endif
+
+#ifndef HAVE_ARCH_COPY_SIGEVENT_TO_USER
+int compat_copy_sigevent_to_user(compat_sigevent_t __user *to, sigevent_t *from)
+{
+	int err;
+	u32 scratch;
+	
+	/* copy sigval_t sigev_value 
+	 	int_t sival_int		(same)
+	 	uptr_t sival_ptr	(32 vs 64)*/
+	err = __put_user(from->sigev_value.sival_int, 
+	    		 &to->sigev_value.sival_int);
+	scratch = (u32)((u64 __force)from->sigev_value.sival_ptr & 0xffffffffUL);
+	err |= __put_user((compat_uptr_t)scratch, &to->sigev_value.sival_ptr);
+	
+	/* copy int_t sigev_signo 	(same)*/
+	err |= __put_user(from->sigev_signo, &to->sigev_signo);
+	
+	/* copy int_t sigev_notify	(same)*/
+	err |= __put_user(from->sigev_notify, &to->sigev_notify);
+
+	/* never copy _sigev_un padding */
+
+	/* copy int_t _tid 		(same),
+	   good_sigevent() uses this value of */
+	err |= __put_user(from->sigev_notify_thread_id, &to->sigev_notify_thread_id);
+	
+	/* XXX: Do not copy these, they aren't used by
+	   anyone. We would need to distinguish the uses of the union.
+	   copy _sigev_thread
+	  	uptr_t _function	(32 vs 64)
+	  	uptr_t _attribute	(32 vs 64)*/
+	
+	return err;
+}
+#endif
+
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 656476e..298ca08 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -363,7 +363,7 @@ static int ptrace_setsiginfo(struct task
 	siginfo_t newinfo;
 	int error = -ESRCH;
 
-	if (copy_from_user(&newinfo, data, sizeof (siginfo_t)))
+	if (copy_siginfo_from_user(&newinfo, data) != 0)
 		return -EFAULT;
 
 	read_lock(&tasklist_lock);
diff --git a/kernel/signal.c b/kernel/signal.c
index d7611f1..8ef54c0 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -22,6 +22,7 @@
 #include <linux/security.h>
 #include <linux/syscalls.h>
 #include <linux/ptrace.h>
+#include <linux/compat_siginfo.h>
 #include <linux/posix-timers.h>
 #include <linux/signal.h>
 #include <linux/audit.h>
@@ -2095,17 +2096,35 @@ sys_rt_sigpending(sigset_t __user *set, 
 	return do_sigpending(set, sigsetsize);
 }
 
+#ifndef HAVE_ARCH_COPY_SIGINFO_FROM_USER
+
+int copy_siginfo_from_user(siginfo_t *to, siginfo_t __user *from)
+{
+        if(is_compat_task(current))
+                return compat_copy_siginfo_from_user(to,(compat_siginfo_t __user *)from);
+  
+        return copy_from_user(&to, from, sizeof(siginfo_t));
+}
+
+#endif
+
 #ifndef HAVE_ARCH_COPY_SIGINFO_TO_USER
 
 int copy_siginfo_to_user(siginfo_t __user *to, siginfo_t *from)
 {
 	int err;
+	
+	/* Use compat_siginfo_t with 32-bit signals */
+	if(is_compat_task(current)){
+		return compat_copy_siginfo_to_user((compat_siginfo_t __user *)to,from);
+	}
 
 	if (!access_ok (VERIFY_WRITE, to, sizeof(siginfo_t)))
 		return -EFAULT;
 	if (from->si_code < 0)
 		return __copy_to_user(to, from, sizeof(siginfo_t))
 			? -EFAULT : 0;
+	
 	/*
 	 * If you change siginfo_t structure, please be sure
 	 * this code is fixed accordingly.
@@ -2321,7 +2340,7 @@ sys_rt_sigqueueinfo(int pid, int sig, si
 {
 	siginfo_t info;
 
-	if (copy_from_user(&info, uinfo, sizeof(siginfo_t)))
+	if (copy_siginfo_from_user(&info, uinfo))
 		return -EFAULT;
 
 	/* Not even root can pretend to send signals from the kernel.
-- 
1.0.7

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From: Matthew Wilcox <willy@parisc-linux.org>

Convert arch/ia64 to use generic compat_siginfo_t.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

Tony,

This patch has been sitting in parisc-linux for quite some time. Matthew
has been running that tree on his ia64 machines for a while, but I'm not
sure how much testing the ia32 emulation received.

 arch/ia64/ia32/ia32_signal.c |    1 +
 arch/ia64/ia32/ia32priv.h    |   52 ------------------------------------------
 include/asm-ia64/compat.h    |    3 ++
 3 files changed, 4 insertions(+), 52 deletions(-)

55f9c468f33f732cc60793aaa4a425384254290c
diff --git a/arch/ia64/ia32/ia32_signal.c b/arch/ia64/ia32/ia32_signal.c
index aa891c9..cd76bbb 100644
--- a/arch/ia64/ia32/ia32_signal.c
+++ b/arch/ia64/ia32/ia32_signal.c
@@ -24,6 +24,7 @@
 #include <linux/unistd.h>
 #include <linux/wait.h>
 #include <linux/compat.h>
+#include <linux/compat_siginfo.h>
 
 #include <asm/intrinsics.h>
 #include <asm/uaccess.h>
diff --git a/arch/ia64/ia32/ia32priv.h b/arch/ia64/ia32/ia32priv.h
index 68ceb4e..2bc099c 100644
--- a/arch/ia64/ia32/ia32priv.h
+++ b/arch/ia64/ia32/ia32priv.h
@@ -225,58 +225,6 @@ struct stat64 {
 	unsigned int	st_ino_hi;
 };
 
-typedef struct compat_siginfo {
-	int si_signo;
-	int si_errno;
-	int si_code;
-
-	union {
-		int _pad[((128/sizeof(int)) - 3)];
-
-		/* kill() */
-		struct {
-			unsigned int _pid;	/* sender's pid */
-			unsigned int _uid;	/* sender's uid */
-		} _kill;
-
-		/* POSIX.1b timers */
-		struct {
-			compat_timer_t _tid;		/* timer id */
-			int _overrun;		/* overrun count */
-			char _pad[sizeof(unsigned int) - sizeof(int)];
-			compat_sigval_t _sigval;	/* same as below */
-			int _sys_private;       /* not to be passed to user */
-		} _timer;
-
-		/* POSIX.1b signals */
-		struct {
-			unsigned int _pid;	/* sender's pid */
-			unsigned int _uid;	/* sender's uid */
-			compat_sigval_t _sigval;
-		} _rt;
-
-		/* SIGCHLD */
-		struct {
-			unsigned int _pid;	/* which child */
-			unsigned int _uid;	/* sender's uid */
-			int _status;		/* exit code */
-			compat_clock_t _utime;
-			compat_clock_t _stime;
-		} _sigchld;
-
-		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
-		struct {
-			unsigned int _addr;	/* faulting insn/memory ref. */
-		} _sigfault;
-
-		/* SIGPOLL */
-		struct {
-			int _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
-			int _fd;
-		} _sigpoll;
-	} _sifields;
-} compat_siginfo_t;

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Subject: Re: [parisc-linux] [PATCH 1/5] Add generic compat_siginfo_t
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-mm already has a much better implementation for compat_sys_timer_create
that doesn't require all the sigevent churn in this patch (which btw
doesn't seem to be mentioned in the changelog at all).  But even with
that remove there seems to be a lot of useless ifdef and indirection
in this patch.  Over the next days I'll send out my generic compat
singal bits which don't require all this, but otoh require every
architecture to supply helpers.  If you can make those generic without
all the ifdef an additional header bits all power to you!

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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] Re: [Update] TLS toolchain.
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> The elf related failures are relatively new and related to binutils.
> ---
> 
> I'm going to run the NPTL build and see how the tests turn out.
> 
> Anyone remember what the next step was?

I think the gcc stuff is all merged upstream already.

binutils stuff needs to be merged upstream. Perhaps we should look at
those elf related failures first.

I don't think we are ready for NPTL yet. Did we settle on how we are
implementing futexes? Are we going to implement a new kernel fsyscall
for the compare-and-exchange primitive that NPTL seems to depend on?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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> I don't think we are ready for NPTL yet. Did we settle on how we are
> implementing futexes? Are we going to implement a new kernel fsyscall
> for the compare-and-exchange primitive that NPTL seems to depend on?

Regarding atomic, I suggest looking at
http://www.hpl.hp.com/research/linux/atomic_ops and
http://www.hpl.hp.com/techreports/2005/HPL-2005-217.html.

I haven't had a chance to look at it but this work is part of a study
being done to add thread support to C++.  This came up when I added a
userspace implementation of CAS to java.  Apparently, gc7alpha versions
are using this code.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Jan 10, 2006 at 03:33:11PM +0800, Randolph Chung wrote:
> I don't think we are ready for NPTL yet. Did we settle on how we are
> implementing futexes? Are we going to implement a new kernel fsyscall
> for the compare-and-exchange primitive that NPTL seems to depend on?
>

Has any thought been given to doing this via a VDSO or something that
the kernel links in? Excuse my ignorance, but this seems like a good
way to work around kernel version dependancy using straight LWS would
result in (I believe?).

Cheers,
	Kyle
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On Mon, Jan 09, 2006 at 03:13:55PM +0100, Christoph Hellwig wrote:
> -mm already has a much better implementation for compat_sys_timer_create
> that doesn't require all the sigevent churn in this patch (which btw
> doesn't seem to be mentioned in the changelog at all).  

Ok, I see it in -mm now, and it does seem to be nicer code, I'll
try it out on parisc64.

> But even with
> that remove there seems to be a lot of useless ifdef and indirection
> in this patch.  

I agree, I'm really just trying to shepard this home so we don't have
to maintain it out of tree. I'm not overly attached to the code, if
I can make parisc64 work with your compat signal bits, I'll be
just as happy.

The one thing from this patchset I'd like to keep is the is_compat_task()
as it does provide nice cleanups 

Cheers, Kyle

> Over the next days I'll send out my generic compat
> singal bits which don't require all this, but otoh require every
> architecture to supply helpers.  If you can make those generic without
> all the ifdef an additional header bits all power to you!
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On Tue, Jan 10, 2006 at 10:01:41AM -0500, Kyle McMartin wrote:
> I agree, I'm really just trying to shepard this home so we don't have
> to maintain it out of tree. I'm not overly attached to the code, if
> I can make parisc64 work with your compat signal bits, I'll be
> just as happy.
> 
> The one thing from this patchset I'd like to keep is the is_compat_task()
> as it does provide nice cleanups 

Yes, the is_compat_task helper is a nice thing to have.  I haven't
needed it for the signal bits I've done yet, but it's also useful
elsewhere.  But IIRC someone vehemently opposed it in the last round
of discussion.

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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] [PATCH 1/5] Add generic compat_siginfo_t
Date: Tue, 10 Jan 2006 09:39:43 -0700
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Cc: akpm@osdl.org,
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To: Christoph Hellwig <hch@lst.de>
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On Tue, Jan 10, 2006 at 04:15:47PM +0100, Christoph Hellwig wrote:
> Yes, the is_compat_task helper is a nice thing to have.  I haven't
> needed it for the signal bits I've done yet, but it's also useful
> elsewhere.  But IIRC someone vehemently opposed it in the last round
> of discussion.

Andi's now dropped his opposition, so I think we're fine.
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] gcc-hppa64 compilers
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Cc: parisc-linux@lists.parisc-linux.org,
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To: doko@cs.tu-berlin.de (Matthias Klose)
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> Which gcc-X.Y-hppa64 variants are still needed for Debian sid/etch?
> Currently compilers are built for 3.3, 3.4, 4.0 and 4.1, the latter
> one for experimental. Is it time to drop some of these?

In the past couple of weeks, a couple of issues have appeared
regarding hppa compilers.

1) The current installed version of /lib/libgcc_s.so.2 in unstable
   is not compatible with the version of libgcc_s.so.2 built in 4.1
   and head.  I don't know much about this incompatibility other
   than using the new version is required with ada to avoid numerous
   testsuite fails.  It's likely that the problem affects other
   languages.

2) In recent debugging of an application that uses complex values,
   I noticed that complex values are not being passed in the correct
   registers on both the 32 and 64-bit ports.  I have a patch which
   I'm thinking of applying to 4.1 and trunk.  

These issues apply to hppa64 but aren't critical since there is no
linux runtime.  Fixing problem requires rebuilding all packages that
use complex or vector values.

I'm thinking we need another version bump for libgcc_s.so.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Segmentation faults in /bin/sh
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I'm occassionally seeing segmentation faults in /bin/sh:

dave@gsyprf11:~/gcc-4.0/objdir/hppa-linux/libjava$ gdb -c core /bin/sh
GNU gdb 6.4.50.20060109-cvs
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "hppa-linux"...(no debugging symbols found)
Using host libthread_db library "/lib/libthread_db.so.1".

Core was generated by `/bin/sh -c : mkdir -p -- javax/crypto/interfaces'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/libncurses.so.5...(no debugging symbols found)...done.
Loaded symbols for /lib/libncurses.so.5
Reading symbols from /lib/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/libc.so.6...
(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/ld.so.1

#0  0x000aa048 in xdupmbstowcs ()
(gdb) bt
#0  0x000aa048 in xdupmbstowcs ()
#1  0x404868f0 in _IO_free_backup_area () from /lib/libc.so.6
#2  0x404851bc in _IO_file_overflow () from /lib/libc.so.6
#3  0x40487680 in _IO_adjust_column () from /lib/libc.so.6
#4  0x40487a2c in _flushlbf () from /lib/libc.so.6
#5  0x4044ca84 in exit () from /lib/libc.so.6
#6  0x00024a1c in sh_exit ()
#7  0x00024a78 in exit_shell ()
#8  0x00026870 in main ()
(gdb) disass 0x000aa028 0x000aa068
Dump of assembler code from 0xaa028 to 0xaa068:
0x000aa028 <xdupmbstowcs+2888>: ldi 0,r5
0x000aa02c <xdupmbstowcs+2892>: stw r11,-7c(sp)
0x000aa030 <xdupmbstowcs+2896>: stw r8,-70(sp)
0x000aa034 <xdupmbstowcs+2900>: stw r7,-6c(sp)
0x000aa038 <xdupmbstowcs+2904>: stw r6,-68(sp)
0x000aa03c <xdupmbstowcs+2908>: stw r4,-60(sp)
0x000aa040 <xdupmbstowcs+2912>: movb,= r26,r4,0xaa1fc <xdupmbstowcs+3356>
0x000aa044 <xdupmbstowcs+2916>: stw r3,-5c(sp)
0x000aa048 <xdupmbstowcs+2920>: ldb -8(r4),r19
0x000aa04c <xdupmbstowcs+2924>: ldo -8(r4),r6
0x000aa050 <xdupmbstowcs+2928>: extrw,s r19,31,8,r19
0x000aa054 <xdupmbstowcs+2932>: ldi -2a,ret0
0x000aa058 <xdupmbstowcs+2936>: cmpb,= ret0,r19,0xaa3c0 <xdupmbstowcs+3808>
0x000aa05c <xdupmbstowcs+2940>: copy r4,r7
0x000aa060 <xdupmbstowcs+2944>: ldb 0(r6),ret0
0x000aa064 <xdupmbstowcs+2948>: extrw,s ret0,31,8,r19
End of assembler dump.
(gdb) p/x $r4
$1 = 0x7c20
(gdb) disass 0x000aa000 0x000aa068
Dump of assembler code from 0xaa000 to 0xaa068:
0x000aa000 <xdupmbstowcs+2848>: shladd,l r12,2,r19,r19
0x000aa004 <xdupmbstowcs+2852>: b,l 0xa9da4 <xdupmbstowcs+2244>,r0
0x000aa008 <xdupmbstowcs+2856>: stw ret0,0(r19)
0x000aa00c <xdupmbstowcs+2860>: stw rp,-14(sp)
0x000aa010 <xdupmbstowcs+2864>: stw,ma r12,80(sp)
0x000aa014 <xdupmbstowcs+2868>: stw r10,-78(sp)
0x000aa018 <xdupmbstowcs+2872>: copy r25,r10
0x000aa01c <xdupmbstowcs+2876>: stw r9,-74(sp)
0x000aa020 <xdupmbstowcs+2880>: copy r24,r9
0x000aa024 <xdupmbstowcs+2884>: stw r5,-64(sp)
0x000aa028 <xdupmbstowcs+2888>: ldi 0,r5
0x000aa02c <xdupmbstowcs+2892>: stw r11,-7c(sp)
0x000aa030 <xdupmbstowcs+2896>: stw r8,-70(sp)
0x000aa034 <xdupmbstowcs+2900>: stw r7,-6c(sp)
0x000aa038 <xdupmbstowcs+2904>: stw r6,-68(sp)
0x000aa03c <xdupmbstowcs+2908>: stw r4,-60(sp)
0x000aa040 <xdupmbstowcs+2912>: movb,= r26,r4,0xaa1fc <xdupmbstowcs+3356>
0x000aa044 <xdupmbstowcs+2916>: stw r3,-5c(sp)
0x000aa048 <xdupmbstowcs+2920>: ldb -8(r4),r19
0x000aa04c <xdupmbstowcs+2924>: ldo -8(r4),r6
0x000aa050 <xdupmbstowcs+2928>: extrw,s r19,31,8,r19
0x000aa054 <xdupmbstowcs+2932>: ldi -2a,ret0
---Type <return> to continue, or q <return> to quit---
0x000aa058 <xdupmbstowcs+2936>: cmpb,= ret0,r19,0xaa3c0 <xdupmbstowcs+3808>
0x000aa05c <xdupmbstowcs+2940>: copy r4,r7
0x000aa060 <xdupmbstowcs+2944>: ldb 0(r6),ret0
0x000aa064 <xdupmbstowcs+2948>: extrw,s ret0,31,8,r19
End of assembler dump.
(gdb) bt
#0  0x000aa048 in xdupmbstowcs ()
#1  0x404868f0 in _IO_free_backup_area () from /lib/libc.so.6
#2  0x404851bc in _IO_file_overflow () from /lib/libc.so.6
#3  0x40487680 in _IO_adjust_column () from /lib/libc.so.6
#4  0x40487a2c in _flushlbf () from /lib/libc.so.6
#5  0x4044ca84 in exit () from /lib/libc.so.6
#6  0x00024a1c in sh_exit ()
#7  0x00024a78 in exit_shell ()
#8  0x00026870 in main ()
(gdb) p *(char *)($r4 - 8)
Cannot access memory at address 0x7c18

This is with debian libc6 2.3.5-8.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] "mark rodata section read only" patches for parisc
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Xref: news.gmane.org gmane.linux.ports.parisc:23371

I've just committed a parisc version for the rodata section protection.
Nevertheless, since I'm not a real Linux Kernel memory expert, I could help on this part which is now in arch/parisc/mm/init.c:

	unsigned long addr = (unsigned long)&__start_rodata;

        for (; addr < (unsigned long)&__end_rodata; addr += PAGE_SIZE)
                change_page_attr(virt_to_page(addr), 1, PAGE_KERNEL_RO);

change_page_attr() is a i386 function to mark the page with special access rights, in this case "PAGE_KERNEL_RO".
Maybe someone here can tell me how this can be realized on parisc ?

Helge

On Friday 13 January 2006 21:21, Helge Deller wrote:
> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	deller@cvs.parisc-linux.org	2006-01-13 13:21:06
> 
> Modified files:
> 	arch/parisc    : Kconfig.debug 
> 	arch/parisc/hpux: entry_hpux.S 
> 	arch/parisc/kernel: syscall.S 
> 	arch/parisc/mm : init.c 
> 	include/asm-parisc: cacheflush.h 
> 
> Log message:
> 	add the parisc version of the "mark rodata section read only" patches,
> 	some code for actually mark the pages RO still needs to be ADDED (see FIXME in arch/parisc/mm/init.c).
> 	
> 	copied from code from and signed off by Arjan van de Ven <arjan@infradead.org>, Ingo Molnar <mingo@elte.hu>,
> 	Andi Kleen <ak@muc.de>, Andrew Morton <akpm@osdl.org>, Linus Torvalds <torvalds@osdl.org>
> 	
> 	parisc-version is
> 	Signed-off-by: Helge Deller <deller@gmx.de>
> 
> Patches:
> http://cvs.parisc-linux.org/linux-2.6/arch/parisc/Kconfig.debug.diff?cvsroot=&r1=1.2&r2=1.3
> http://cvs.parisc-linux.org/linux-2.6/arch/parisc/hpux/entry_hpux.S.diff?cvsroot=&r1=1.3&r2=1.4
> http://cvs.parisc-linux.org/linux-2.6/arch/parisc/kernel/syscall.S.diff?cvsroot=&r1=1.21&r2=1.22
> http://cvs.parisc-linux.org/linux-2.6/arch/parisc/mm/init.c.diff?cvsroot=&r1=1.26&r2=1.27
> http://cvs.parisc-linux.org/linux-2.6/include/asm-parisc/cacheflush.h.diff?cvsroot=&r1=1.19&r2=1.20
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Xref: news.gmane.org gmane.linux.ports.parisc:23372

I was toying with the idea of cleaning up the ugly
ioc_needs_fdc branches all over sba_iommu.c to use something a little
bit more elegant, patching opcodes at runtime...

x86{,-64} has a nice little interface for this that I thought I'd
hijack...

Anyway, it seems to work ok, the bits and pieces appear to be
properly stored in the altinstructions section, but the actual runtime
patching fails in a bogus way.

I don't have time to debug this right now, but if someone else wants
to trace my faulty logic, that would be awesome. Please don't commit it
yet, as I still haven't decided how I want to export the `API' for
deciding whether to patch or not.

Cheers,
	Kyle

Index: arch/parisc/kernel/setup.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/setup.c,v
retrieving revision 1.14
diff -u -d -p -r1.14 setup.c
--- arch/parisc/kernel/setup.c	17 Dec 2005 17:54:41 -0000	1.14
+++ arch/parisc/kernel/setup.c	15 Jan 2006 00:56:55 -0000
@@ -38,6 +38,7 @@
 #undef PCI_DEBUG
 #include <linux/proc_fs.h>
 
+#include <asm/system.h>
 #include <asm/processor.h>
 #include <asm/pdc.h>
 #include <asm/led.h>
@@ -116,6 +117,59 @@ void __init dma_ops_init(void)
 }
 #endif
 
+static int parisc_patch_opcode(unsigned long flag, unsigned long reason)
+{
+	switch(reason) {
+	case ALT_PDC_CAPABILITY:
+		if (boot_cpu_data.pdc.capabilities & flag)
+			return 1;
+		break;
+	default:
+		printk(KERN_INFO "Unknown reason.\n");
+		break;
+	}
+
+	return 0;
+}
+
+void apply_alternatives(void *start, void *end)
+{
+	struct alt_instr *a;
+
+	for (a = start; (void*)a < end; a++) {
+		printk(KERN_INFO "Patching code @ 0x%p\n", a);
+		printk(KERN_INFO "a->instr = 0x%p\n", (a->instr));
+		printk(KERN_INFO "a->replacement = 0x%p\n", (a->replacement));
+		printk(KERN_INFO "a->flag = 0x%x\n", a->flag);
+		printk(KERN_INFO "a->reason = 0x%x\n", a->reason);
+
+		if (!parisc_patch_opcode(a->flag, a->reason))
+			continue;
+
+		printk(KERN_INFO "Applying patch to 0x%p\n", a->instr);
+
+		/* parisc has fixed width insns */
+		memcpy(a->instr, a->replacement, 4);
+		/* this probably executed before we need to flush */
+	}
+}
+
+static int no_replacement __initdata = 0;
+
+void __init alternative_instructions(void)
+{
+	extern struct alt_instr __alt_instructions[], __alt_instructions_end[];
+
+	if (no_replacement)
+		return;
+
+	printk(KERN_INFO "alt_instructions section start = 0x%p\n"
+	       KERN_INFO "alt_instructions section end = 0x%p\n",
+		__alt_instructions, __alt_instructions_end);
+
+	apply_alternatives(__alt_instructions, __alt_instructions_end);
+}
+
 extern int init_per_cpu(int cpuid);
 extern void collect_boot_cpu_data(void);
 
@@ -318,6 +372,8 @@ static int __init parisc_init(void)
 			boot_cpu_data.cpu_name,
 			boot_cpu_data.cpu_hz / 1000000,
 			boot_cpu_data.cpu_hz % 1000000	);
+
+	alternative_instructions();
 
 	parisc_setup_cache_timing();
 
Index: drivers/parisc/sba_iommu.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/sba_iommu.c,v
retrieving revision 1.42
diff -u -d -p -r1.42 sba_iommu.c
--- drivers/parisc/sba_iommu.c	12 Nov 2005 04:08:02 -0000	1.42
+++ drivers/parisc/sba_iommu.c	15 Jan 2006 00:57:00 -0000
@@ -37,6 +37,7 @@
 #include <asm/hardware.h>	/* for register_parisc_driver() stuff */
 
 #include <linux/proc_fs.h>
+#include <asm/system.h>		/* for alternate() */
 #include <asm/runway.h>		/* for proc_runway_root */
 #include <asm/pdc.h>		/* for PDC_MODEL_* */
 #include <asm/pdcpat.h>		/* for is_pdc_pat() */
@@ -283,8 +284,6 @@ struct sba_device {
 
 static struct sba_device *sba_list;
 
-static unsigned long ioc_needs_fdc = 0;
-
 /* global count of IOMMUs in the system */
 static unsigned int global_ioc_cnt = 0;
 
@@ -743,8 +742,8 @@ sba_io_pdir_entry(u64 *pdir_ptr, space_t
 	 * (bit #61, big endian), we have to flush and sync every time
 	 * IO-PDIR is changed in Ike/Astro.
 	 */
-	if (ioc_needs_fdc)
-		asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
+	pdc_capability_altinput("nop", "fdc %%r0(%2)", PDC_MODEL_IOPDIR_FDC, 
+				"r"(pdir_ptr) : "memory");
 }
 
 
@@ -784,25 +783,13 @@ sba_mark_invalid(struct ioc *ioc, dma_ad
 
 	if (byte_cnt > IOVP_SIZE)
 	{
-#if 0
-		unsigned long entries_per_cacheline = ioc_needs_fdc ?
-				L1_CACHE_ALIGN(((unsigned long) pdir_ptr))
-					- (unsigned long) pdir_ptr;
-				: 262144;
-#endif
-
 		/* set "size" field for PCOM */
 		iovp |= get_order(byte_cnt) + PAGE_SHIFT;
 
 		do {
 			/* clear I/O Pdir entry "valid" bit first */
 			((u8 *) pdir_ptr)[7] = 0;
-			if (ioc_needs_fdc) {
-				asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
-#if 0
-				entries_per_cacheline = L1_CACHE_SHIFT - 3;
-#endif
-			}
+			pdc_capability_altinput("nop", "fdc %%r0(%2)", PDC_MODEL_IOPDIR_FDC, "r"(pdir_ptr) : "memory");
 			pdir_ptr++;
 			byte_cnt -= IOVP_SIZE;
 		} while (byte_cnt > IOVP_SIZE);
@@ -817,8 +804,8 @@ sba_mark_invalid(struct ioc *ioc, dma_ad
 	** could dump core on HPMC.
 	*/
 	((u8 *) pdir_ptr)[7] = 0;
-	if (ioc_needs_fdc)
-		asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
+        pdc_capability_altinput("nop", "fdc %%r0(%2)", 
+				PDC_MODEL_IOPDIR_FDC, "r"(pdir_ptr) : "memory");
 
 	WRITE_REG( SBA_IOVA(ioc, iovp, 0, 0), ioc->ioc_hpa+IOC_PCOM);
 }
@@ -925,8 +912,7 @@ sba_map_single(struct device *dev, void 
 	}
 
 	/* force FDC ops in io_pdir_entry() to be visible to IOMMU */
-	if (ioc_needs_fdc)
-		asm volatile("sync" : : );
+        pdc_capability_alt("nop", "sync", PDC_MODEL_IOPDIR_FDC);
 
 #ifdef ASSERT_PDIR_SANITY
 	sba_check_pdir(ioc,"Check after sba_map_single()");
@@ -996,8 +982,7 @@ sba_unmap_single(struct device *dev, dma
 	sba_free_range(ioc, iova, size);
 
 	/* If fdc's were issued, force fdc's to be visible now */
-	if (ioc_needs_fdc)
-		asm volatile("sync" : : );
+	pdc_capability_alt("nop", "sync", PDC_MODEL_IOPDIR_FDC);
 
 	READ_REG(ioc->ioc_hpa+IOC_PCOM);	/* flush purges */
 #endif /* DELAYED_RESOURCE_CNT == 0 */
@@ -1145,8 +1130,8 @@ sba_map_sg(struct device *dev, struct sc
 	filled = iommu_fill_pdir(ioc, sglist, nents, 0, sba_io_pdir_entry);
 
 	/* force FDC ops in io_pdir_entry() to be visible to IOMMU */
-	if (ioc_needs_fdc)
-		asm volatile("sync" : : );
+        pdc_capability_alt("nop", "sync", PDC_MODEL_IOPDIR_FDC);
+
 
 #ifdef ASSERT_PDIR_SANITY
 	if (sba_check_pdir(ioc,"Check after sba_map_sg()"))
@@ -1875,7 +1860,6 @@ sba_common_init(struct sba_device *sba_d
 	}
 
 	spin_lock_init(&sba_dev->sba_lock);
-	ioc_needs_fdc = boot_cpu_data.pdc.capabilities & PDC_MODEL_IOPDIR_FDC;
 
 #ifdef DEBUG_SBA_INIT
 	/*
Index: include/asm-parisc/system.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/system.h,v
retrieving revision 1.13
diff -u -d -p -r1.13 system.h
--- include/asm-parisc/system.h	14 Sep 2005 12:57:40 -0000	1.13
+++ include/asm-parisc/system.h	15 Jan 2006 00:57:04 -0000
@@ -2,6 +2,7 @@
 #define __PARISC_SYSTEM_H
 
 #include <linux/config.h>
+#include <linux/types.h>
 #include <asm/psw.h>
 
 /* The program status word as bitfields.  */
@@ -137,6 +138,55 @@ static inline void set_eiem(unsigned lon
 #define set_mb(var, value)		do { var = value; mb(); } while (0)
 #define set_wmb(var, value)		do { var = value; wmb(); } while (0)
 
+/* Runtime overwritten alternate instructions */
+struct alt_instr {
+	u32 *instr;		/* original */
+	u32 *replacement;
+	unsigned long flag;
+	unsigned long reason;	/* pad to 4*sizeof(unsigned long) */
+};
+
+#ifdef __LP64__
+#define ALT_INSTR_ALIGN	"32"
+#else
+#define ALT_INSTR_ALIGN "16"
+#endif /* __LP64__ */
+
+/* values for alt_instr.reason */
+#define ALT_PDC_CAPABILITY	1
+
+#define alternative(oldinstr, newinstr, flag, reason)		\
+	asm volatile ("661:\n\t" oldinstr "\n662:\n"		\
+		      ".section .altinstructions,\"a\"\n"	\
+		      "  .align " ALT_INSTR_ALIGN "\n"		\
+		      "  .long 661b\n"				\
+		      "  .long 663f\n"				\
+		      "  .long %c0\n"				\
+		      "  .long %c1\n"				\
+		      ".previous\n"				\
+		      ".section .altinstr_replacement,\"ax\"\n"	\
+		      "663:\n\t" newinstr "\n664:\n"		\
+		      ".previous" :: "i"(flag), "i"(reason)	\
+		        : "memory")
+
+#define alternative_input(oldinstr, newinstr, flag, reason, input...)	\
+        asm volatile ("661:\n\t" oldinstr "\n662:\n"			\
+                      ".section .altinstructions,\"a\"\n"		\
+                      "  .align " ALT_INSTR_ALIGN "\n"			\
+                      "  .long 661b\n"					\
+                      "  .long 663f\n"					\
+                      "  .long %c0\n"					\
+		      "  .long %c1\n"					\
+                      ".previous\n"					\
+                      ".section .altinstr_replacement,\"ax\"\n"		\
+                      "663:\n\t" newinstr "\n664:\n"			\
+                      ".previous" :: "i" (flag), "i" (reason), 		\
+		        ## input)
+
+#define pdc_capability_alt(old, new, flag) 			\
+		alternative(old, new, flag, ALT_PDC_CAPABILITY)
+#define pdc_capability_altinput(old, new, flag, input...) 	\
+		alternative_input(old, new, flag, ALT_PDC_CAPABILITY, input)
 
 #ifndef CONFIG_PA20
 /* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
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Xref: news.gmane.org gmane.linux.ports.parisc:23373

Hello *,

Could we move all #ifdef __LP64__ to CONFIG_64BIT?

TIA,
	Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:23374

Hi all, 

I spent the early afternoon kludging this into place... I wanted to
get parisc64 compiling without the compat patchset. Here's the work
in progress against current Linus head. Can someone check this over
to make sure I didn't do anything obviously stupid?

(Note, includes atomic64 and the missing fix from mm/init.c, since I 
needed it to compile.)

Compile and boot tested on 64-bit, but that's about it.

diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 27160e8..413292f 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -91,7 +91,7 @@ long arch_ptrace(struct task_struct *chi
 		int copied;
 
 #ifdef __LP64__
-		if (is_compat_task(child)) {
+		if (personality(child->personality) == PER_LINUX32) {
 			unsigned int tmp;
 
 			addr &= 0xffffffffL;
@@ -123,7 +123,7 @@ long arch_ptrace(struct task_struct *chi
 	case PTRACE_POKEDATA:
 		ret = 0;
 #ifdef __LP64__
-		if (is_compat_task(child)) {
+		if (personality(child->personality) == PER_LINUX32) {
 			unsigned int tmp = (unsigned int)data;
 			DBG("sys_ptrace(POKE%s, %d, %lx, %lx)\n",
 				request == PTRACE_POKETEXT ? "TEXT" : "DATA",
@@ -146,7 +146,7 @@ long arch_ptrace(struct task_struct *chi
 	case PTRACE_PEEKUSR: {
 		ret = -EIO;
 #ifdef __LP64__
-		if (is_compat_task(child)) {
+		if (personality(child->personality) == PER_LINUX32) {
 			unsigned int tmp;
 
 			if (addr & (sizeof(int)-1))
@@ -205,7 +205,7 @@ long arch_ptrace(struct task_struct *chi
 			goto out_tsk;
 		}
 #ifdef __LP64__
-		if (is_compat_task(child)) {
+		if (personality(child->personality) == PER_LINUX32) {
 			if (addr & (sizeof(int)-1))
 				goto out_tsk;
 			if ((addr = translate_usr_offset(addr)) < 0)
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 3a25a7b..05767e8 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -317,7 +317,7 @@ setup_rt_frame(int sig, struct k_sigacti
 	
 	if(personality(current->personality) == PER_LINUX32) {
 		DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &compat_frame->info);
-		err |= compat_copy_siginfo_to_user(&compat_frame->info, info);
+		err |= copy_siginfo_to_user32(&compat_frame->info, info);
 		DBG(1,"SETUP_RT_FRAME: 1\n");
 		compat_val = (compat_int_t)current->sas_ss_sp;
 		err |= __put_user(compat_val, &compat_frame->uc.uc_stack.ss_sp);
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index 0792e20..75a803f 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -31,7 +31,6 @@
 #include <linux/types.h>
 #include <linux/errno.h>
 
-#include <asm/compat_signal.h>
 #include <asm/uaccess.h>
 
 #include "signal32.h"
@@ -50,6 +49,107 @@
 
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
+int
+copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from)
+{
+        unsigned long tmp;
+        int err;
+
+        if (!access_ok(VERIFY_READ, from, sizeof(compat_siginfo_t)))
+                return -EFAULT;
+
+        err = __get_user(to->si_signo, &from->si_signo);
+        err |= __get_user(to->si_errno, &from->si_errno);
+        err |= __get_user(to->si_code, &from->si_code);
+
+        if (to->si_code < 0)
+                err |= __copy_from_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
+        else {
+                switch (to->si_code >> 16) {
+                      case __SI_CHLD >> 16:
+                        err |= __get_user(to->si_utime, &from->si_utime);
+                        err |= __get_user(to->si_stime, &from->si_stime);
+                        err |= __get_user(to->si_status, &from->si_status);
+                      default:
+                        err |= __get_user(to->si_pid, &from->si_pid);
+                        err |= __get_user(to->si_uid, &from->si_uid);
+                        break;
+                      case __SI_FAULT >> 16:
+                        err |= __get_user(tmp, &from->si_addr);
+                        to->si_addr = (void __user *) tmp;
+                        break;
+                      case __SI_POLL >> 16:
+                        err |= __get_user(to->si_band, &from->si_band);
+                        err |= __get_user(to->si_fd, &from->si_fd);
+                        break;
+                      case __SI_RT >> 16: /* This is not generated by the kernel  as of now.  */
+                      case __SI_MESGQ >> 16:
+                        err |= __get_user(to->si_pid, &from->si_pid);
+                        err |= __get_user(to->si_uid, &from->si_uid);
+                        err |= __get_user(to->si_int, &from->si_int);
+                        break;
+                }
+        }
+        return err;
+}
+
+int
+copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from)
+{
+        unsigned int addr;
+        int err;
+
+        if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
+                return -EFAULT;
+
+        /* If you change siginfo_t structure, please be sure
+           this code is fixed accordingly.
+           It should never copy any pad contained in the structure
+           to avoid security leaks, but must copy the generic
+           3 ints plus the relevant union member.
+           This routine must convert siginfo from 64bit to 32bit as well
+           at the same time.  */
+        err = __put_user(from->si_signo, &to->si_signo);
+        err |= __put_user(from->si_errno, &to->si_errno);
+        err |= __put_user((short)from->si_code, &to->si_code);
+        if (from->si_code < 0)
+                err |= __copy_to_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
+        else {
+                switch (from->si_code >> 16) {
+                case __SI_CHLD >> 16:
+                        err |= __put_user(from->si_utime, &to->si_utime);
+                        err |= __put_user(from->si_stime, &to->si_stime);
+                        err |= __put_user(from->si_status, &to->si_status);
+                default:
+                        err |= __put_user(from->si_pid, &to->si_pid);
+                        err |= __put_user(from->si_uid, &to->si_uid);
+                        break;
+                case __SI_FAULT >> 16:
+                        /* avoid type-checking warnings by copying _pad[0] in lieu of si_addr... */
+                        err |= __put_user(from->_sifields._pad[0], &to->si_addr);
+                        break;
+                case __SI_POLL >> 16:
+                        err |= __put_user(from->si_band, &to->si_band);
+                        err |= __put_user(from->si_fd, &to->si_fd);
+                        break;
+                case __SI_TIMER >> 16:
+                        err |= __put_user(from->si_tid, &to->si_tid);
+                        err |= __put_user(from->si_overrun, &to->si_overrun);
+                        addr = (unsigned long) from->si_ptr;
+                        err |= __put_user(addr, &to->si_ptr);
+                        break;
+                case __SI_RT >> 16:     /* Not generated by the kernel as of now. */
+                case __SI_MESGQ >> 16:
+                        err |= __put_user(from->si_uid, &to->si_uid);
+                        err |= __put_user(from->si_pid, &to->si_pid);
+                        addr = (unsigned long) from->si_ptr;
+                        err |= __put_user(addr, &to->si_ptr);
+                        break;
+                }
+        }
+        return err;
+}
+
 inline void
 sigset_32to64(sigset_t *s64, compat_sigset_t *s32)
 {
@@ -398,3 +498,4 @@ setup_sigcontext32(struct compat_sigcont
 
 	return err;
 }
+
diff --git a/arch/parisc/kernel/signal32.h b/arch/parisc/kernel/signal32.h
index 4d1569e..e39b38a 100644
--- a/arch/parisc/kernel/signal32.h
+++ b/arch/parisc/kernel/signal32.h
@@ -20,8 +20,34 @@
 #define _PARISC64_KERNEL_SIGNAL32_H
 
 #include <linux/compat.h>
-#include <asm/compat_signal.h>
-#include <asm/compat_rt_sigframe.h>
+
+typedef compat_uptr_t compat_sighandler_t;
+
+typedef struct compat_sigaltstack {
+        compat_uptr_t ss_sp;
+        compat_int_t ss_flags;
+        compat_size_t ss_size;
+} compat_stack_t;
+
+/* Most things should be clean enough to redefine this at will, if care
+   is taken to make libc match.  */
+
+struct compat_sigaction {
+        compat_sighandler_t sa_handler;
+        compat_uint_t sa_flags;
+        compat_sigset_t sa_mask;               /* mask last for extensibility */
+};
+
+/* 32-bit ucontext as seen from an 64-bit kernel */
+struct compat_ucontext {
+        compat_uint_t uc_flags;
+        compat_uptr_t uc_link;
+        compat_stack_t uc_stack;        /* struct compat_sigaltstack (12 bytes)*/
+        /* FIXME: Pad out to get uc_mcontext to start at an 8-byte aligned boundary */
+        compat_uint_t pad[1];
+        struct compat_sigcontext uc_mcontext;
+        compat_sigset_t uc_sigmask;     /* mask last for extensibility */
+};
 
 /* ELF32 signal handling */
 
@@ -29,6 +55,103 @@ struct k_sigaction32 {
 	struct compat_sigaction sa;
 };
 
+typedef struct compat_siginfo {
+        int si_signo;
+        int si_errno;
+        int si_code;
+
+        union {
+                int _pad[((128/sizeof(int)) - 3)];
+
+                /* kill() */
+                struct {
+                        unsigned int _pid;      /* sender's pid */
+                        unsigned int _uid;      /* sender's uid */
+                } _kill;
+
+                /* POSIX.1b timers */
+                struct {
+                        compat_timer_t _tid;            /* timer id */
+                        int _overrun;           /* overrun count */
+                        char _pad[sizeof(unsigned int) - sizeof(int)];
+                        compat_sigval_t _sigval;        /* same as below */
+                        int _sys_private;       /* not to be passed to user */
+                } _timer;
+
+                /* POSIX.1b signals */
+                struct {
+                        unsigned int _pid;      /* sender's pid */
+                        unsigned int _uid;      /* sender's uid */
+                        compat_sigval_t _sigval;
+                } _rt;
+
+                /* SIGCHLD */
+                struct {
+                        unsigned int _pid;      /* which child */
+                        unsigned int _uid;      /* sender's uid */
+                        int _status;            /* exit code */
+                        compat_clock_t _utime;
+                        compat_clock_t _stime;
+                } _sigchld;
+
+                /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
+                struct {
+                        unsigned int _addr;     /* faulting insn/memory ref. */
+                } _sigfault;
+
+                /* SIGPOLL */
+                struct {
+                        int _band;      /* POLL_IN, POLL_OUT, POLL_MSG */
+                        int _fd;
+                } _sigpoll;
+        } _sifields;
+} compat_siginfo_t;
+
+int copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from);
+int copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from);
+
+/* In a deft move of uber-hackery, we decide to carry the top half of all
+ * 64-bit registers in a non-portable, non-ABI, hidden structure.
+ * Userspace can read the hidden structure if it *wants* but is never
+ * guaranteed to be in the same place. Infact the uc_sigmask from the
+ * ucontext_t structure may push the hidden register file downards
+ */
+struct compat_regfile {
+        /* Upper half of all the 64-bit registers that were truncated
+           on a copy to a 32-bit userspace */
+        compat_int_t rf_gr[32];
+        compat_int_t rf_iasq[2];
+        compat_int_t rf_iaoq[2];
+        compat_int_t rf_sar;
+};
+
+#define COMPAT_SIGRETURN_TRAMP 4
+#define COMPAT_SIGRESTARTBLOCK_TRAMP 5
+#define COMPAT_TRAMP_SIZE (COMPAT_SIGRETURN_TRAMP + \
+				COMPAT_SIGRESTARTBLOCK_TRAMP)
+
+struct compat_rt_sigframe {
+        /* XXX: Must match trampoline size in arch/parisc/kernel/signal.c
+                Secondary to that it must protect the ERESTART_RESTARTBLOCK
+                trampoline we left on the stack (we were bad and didn't
+                change sp so we could run really fast.) */
+        compat_uint_t tramp[COMPAT_TRAMP_SIZE];
+        compat_siginfo_t info;
+        struct compat_ucontext uc;
+        /* Hidden location of truncated registers, *must* be last. */
+        struct compat_regfile regs;
+};
+
+/*
+ * The 32-bit ABI wants at least 48 bytes for a function call frame:
+ * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of
+ * which Linux/parisc uses is sp-20 for the saved return pointer...)
+ * Then, the stack pointer must be rounded to a cache line (64 bytes).
+ */
+#define SIGFRAME32              64
+#define FUNCTIONCALLFRAME32     48
+#define PARISC_RT_SIGFRAME_SIZE32 (((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
+
 void sigset_32to64(sigset_t *s64, compat_sigset_t *s32);
 void sigset_64to32(compat_sigset_t *s32, sigset_t *s64);
 int do_sigaltstack32 (const compat_stack_t __user *uss32, 
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 720287d..9e03227 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -792,8 +792,6 @@ map_hpux_gateway_page(struct task_struct
 EXPORT_SYMBOL(map_hpux_gateway_page);
 #endif
 
-extern void flush_tlb_all_local(void);
-
 void __init paging_init(void)
 {
 	int i;
@@ -802,7 +800,7 @@ void __init paging_init(void)
 	pagetable_init();
 	gateway_init();
 	flush_cache_all_local(); /* start with known state */
-	flush_tlb_all_local();
+	flush_tlb_all_local(NULL);
 
 	for (i = 0; i < npmem_ranges; i++) {
 		unsigned long zones_size[MAX_NR_ZONES] = { 0, 0, 0 };
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
index 0fada8f..42a95d9 100644
--- a/include/asm-generic/atomic.h
+++ b/include/asm-generic/atomic.h
@@ -35,7 +35,7 @@ static inline void atomic_long_set(atomi
 {
 	atomic64_t *v = (atomic64_t *)l;
 
-	atomic_set(v, i);
+	atomic64_set(v, i);
 }
 
 static inline void atomic_long_inc(atomic_long_t *l)
diff --git a/include/asm-parisc/atomic.h b/include/asm-parisc/atomic.h
index 2ca56d3..a168690 100644
--- a/include/asm-parisc/atomic.h
+++ b/include/asm-parisc/atomic.h
@@ -1,9 +1,12 @@
+/* Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
+ * Copyright (C) 2006 Kyle McMartin <kyle@parisc-linux.org>
+ */
+
 #ifndef _ASM_PARISC_ATOMIC_H_
 #define _ASM_PARISC_ATOMIC_H_
 
 #include <linux/config.h>
 #include <asm/system.h>
-/* Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>.  */
 
 /*
  * Atomic operations that C can't guarantee us.  Useful for
@@ -46,15 +49,6 @@ extern raw_spinlock_t __atomic_hash[ATOM
 #  define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
 #endif
 
-/* Note that we need not lock read accesses - aligned word writes/reads
- * are atomic, so a reader never sees unconsistent values.
- *
- * Cache-line alignment would conflict with, for example, linux/module.h
- */
-
-typedef struct { volatile int counter; } atomic_t;
-
-
 /* This should get optimized out since it's never called.
 ** Or get a link error if xchg is used "wrong".
 */
@@ -69,10 +63,9 @@ extern unsigned long __xchg64(unsigned l
 #endif
 
 /* optimizer better get rid of switch since size is a constant */
-static __inline__ unsigned long __xchg(unsigned long x, __volatile__ void * ptr,
-                                       int size)
+static __inline__ unsigned long 
+__xchg(unsigned long x, __volatile__ void * ptr, int size)
 {
-
 	switch(size) {
 #ifdef __LP64__
 	case 8: return __xchg64(x,(unsigned long *) ptr);
@@ -129,7 +122,13 @@ __cmpxchg(volatile void *ptr, unsigned l
 				    (unsigned long)_n_, sizeof(*(ptr))); \
   })
 
+/* Note that we need not lock read accesses - aligned word writes/reads
+ * are atomic, so a reader never sees unconsistent values.
+ *
+ * Cache-line alignment would conflict with, for example, linux/module.h
+ */
 
+typedef struct { volatile s32 counter; } atomic_t;
 
 /* It's possible to reduce all atomic operations to either
  * __atomic_add_return, atomic_set and atomic_read (the latter
@@ -217,5 +216,59 @@ static __inline__ int atomic_read(const 
 #define smp_mb__before_atomic_inc()	smp_mb()
 #define smp_mb__after_atomic_inc()	smp_mb()
 
+#ifdef __LP64__
+
+typedef struct { volatile s64 counter; } atomic64_t;
+
+#define ATOMIC64_INIT(i) { (i) }
+
+static __inline__ int 
+__atomic64_add_return(s64 i, atomic64_t *v)
+{
+	int ret;
+	unsigned long flags;
+	_atomic_spin_lock_irqsave(v, flags);
+
+	ret = (v->counter += i);
+
+	_atomic_spin_unlock_irqrestore(v, flags);
+	return ret;
+}
+
+static __inline__ void 
+atomic64_set(atomic64_t *v, s64 i) 
+{
+	unsigned long flags;
+	_atomic_spin_lock_irqsave(v, flags);
+
+	v->counter = i;
+
+	_atomic_spin_unlock_irqrestore(v, flags);
+}
+
+static __inline__ s64 
+atomic64_read(const atomic64_t *v)
+{
+	return v->counter;
+}
+
+#define atomic64_add(i,v)	((void)(__atomic64_add_return( ((s64)i),(v))))
+#define atomic64_sub(i,v)	((void)(__atomic64_add_return(-((s64)i),(v))))
+#define atomic64_inc(v)		((void)(__atomic64_add_return(   1,(v))))
+#define atomic64_dec(v)		((void)(__atomic64_add_return(  -1,(v))))
+
+#define atomic64_add_return(i,v)	(__atomic64_add_return( ((s64)i),(v)))
+#define atomic64_sub_return(i,v)	(__atomic64_add_return(-((s64)i),(v)))
+#define atomic64_inc_return(v)		(__atomic64_add_return(   1,(v)))
+#define atomic64_dec_return(v)		(__atomic64_add_return(  -1,(v)))
+
+#define atomic64_add_negative(a, v)	(atomic64_add_return((a), (v)) < 0)
+
+#define atomic64_inc_and_test(v) 	(atomic64_inc_return(v) == 0)
+#define atomic64_dec_and_test(v)	(atomic64_dec_return(v) == 0)
+
+#endif /* __LP64__ */
+
 #include <asm-generic/atomic.h>
-#endif
+
+#endif /* _ASM_PARISC_ATOMIC_H_ */
diff --git a/include/asm-parisc/compat_rt_sigframe.h b/include/asm-parisc/compat_rt_sigframe.h
deleted file mode 100644
index 81bec28..0000000
--- a/include/asm-parisc/compat_rt_sigframe.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#include<linux/compat.h>
-#include<linux/compat_siginfo.h>
-#include<asm/compat_ucontext.h>
-
-#ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-#define _ASM_PARISC_COMPAT_RT_SIGFRAME_H
-
-/* In a deft move of uber-hackery, we decide to carry the top half of all
- * 64-bit registers in a non-portable, non-ABI, hidden structure.
- * Userspace can read the hidden structure if it *wants* but is never
- * guaranteed to be in the same place. Infact the uc_sigmask from the 
- * ucontext_t structure may push the hidden register file downards
- */
-struct compat_regfile {
-	/* Upper half of all the 64-bit registers that were truncated
-	   on a copy to a 32-bit userspace */
-	compat_int_t rf_gr[32];
-	compat_int_t rf_iasq[2];
-	compat_int_t rf_iaoq[2];
-	compat_int_t rf_sar;
-};
-
-#define COMPAT_SIGRETURN_TRAMP 4
-#define COMPAT_SIGRESTARTBLOCK_TRAMP 5 
-#define COMPAT_TRAMP_SIZE (COMPAT_SIGRETURN_TRAMP + COMPAT_SIGRESTARTBLOCK_TRAMP)
-
-struct compat_rt_sigframe {
-	/* XXX: Must match trampoline size in arch/parisc/kernel/signal.c 
-	        Secondary to that it must protect the ERESTART_RESTARTBLOCK
-		trampoline we left on the stack (we were bad and didn't 
-		change sp so we could run really fast.) */
-	compat_uint_t tramp[COMPAT_TRAMP_SIZE];
-	compat_siginfo_t info;
-	struct compat_ucontext uc;
-	/* Hidden location of truncated registers, *must* be last. */
-	struct compat_regfile regs; 
-};
-
-/*
- * The 32-bit ABI wants at least 48 bytes for a function call frame:
- * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of
- * which Linux/parisc uses is sp-20 for the saved return pointer...)
- * Then, the stack pointer must be rounded to a cache line (64 bytes).
- */
-#define SIGFRAME32		64
-#define FUNCTIONCALLFRAME32	48
-#define PARISC_RT_SIGFRAME_SIZE32					\
-	(((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32)
-
-#endif
diff --git a/include/asm-parisc/compat_signal.h b/include/asm-parisc/compat_signal.h
deleted file mode 100644
index 6ad02c3..0000000
--- a/include/asm-parisc/compat_signal.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* Use generic */
-#include <asm-generic/compat_signal.h>
diff --git a/include/asm-parisc/compat_ucontext.h b/include/asm-parisc/compat_ucontext.h
index a1228a3..2f7292a 100644
--- a/include/asm-parisc/compat_ucontext.h
+++ b/include/asm-parisc/compat_ucontext.h
@@ -1,8 +1,7 @@
 #ifndef _ASM_PARISC_COMPAT_UCONTEXT_H
 #define _ASM_PARISC_COMPAT_UCONTEXT_H
 
-#include<linux/compat.h>
-#include<asm/compat_signal.h>
+#include <linux/compat.h>
 
 /* 32-bit ucontext as seen from an 64-bit kernel */
 struct compat_ucontext {
diff --git a/include/asm-parisc/rt_sigframe.h b/include/asm-parisc/rt_sigframe.h
index 5623c03..f0dd3b3 100644
--- a/include/asm-parisc/rt_sigframe.h
+++ b/include/asm-parisc/rt_sigframe.h
@@ -1,10 +1,6 @@
 #ifndef _ASM_PARISC_RT_SIGFRAME_H
 #define _ASM_PARISC_RT_SIGFRAME_H
 
-#ifdef CONFIG_COMPAT
-#include <asm/compat_rt_sigframe.h>
-#endif

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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] [Fwd: [patch/hppa] Floating point exception handling
	patch]
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Xref: news.gmane.org gmane.linux.ports.parisc:23375

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--------------060606010200030503080808
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FYI - James asked me to forward this to the parisc-linux m-l too.

randolph

-------- Original Message --------
Subject: [patch/hppa] Floating point exception handling patch
Date: Sun, 15 Jan 2006 16:44:50 +0800
From: Randolph Chung <randolph@tausq.org>
To: submit@bugs.debian.org
CC: 342545@bugs.debian.org,  debian-hppa@lists.debian.org

Package: glibc
Version: 2.3.5-11
Severity: important
Tags: patch

The attached patch fixes a problem with floating point exception
handling on hppa. This affects packages that use feholdexcept and
fesetenv, such as uic from QT. This patch fixes #342545. Carlos is on
vacation now - I'll ask him to merge this upstream when he returns,
meanwhile perhaps somebody can roll a new glibc package for debian?

randolph



--------------060606010200030503080808
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 name="glibc235-hppa-fpu.dpatch"
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Content-Disposition: inline;
 filename="glibc235-hppa-fpu.dpatch"

#! /bin/sh -e

# DP: Description: hppa floating point exception handling fix
# DP: Related bugs: Debian #342545
# DP: Dpatch author: Randolph Chung <tausq@debian.org>
# DP: Patch author: Randolph Chung <tausq@debian.org>
# DP: Upstream status: Pending
# DP: Status Details: to be merged by Carlos
# DP: Date: Sun, 15 Jan 2006

PATCHLEVEL=1

if [ $# -ne 2 ]; then
    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
    exit 1
fi
case "$1" in
    -patch) patch -d "$2" -f --no-backup-if-mismatch -p$PATCHLEVEL < $0;;
    -unpatch) patch -d "$2" -f --no-backup-if-mismatch -R -p$PATCHLEVEL < $0;;
    *)
	echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
	exit 1
esac
exit 0

# append the patch here and adjust the -p? flag in the patch calls.
diff -uNr glibc-2.3.5/sysdeps/hppa/fpu.orig/fegetenv.c glibc-2.3.5/sysdeps/hppa/fpu/fegetenv.c
--- glibc-2.3.5/sysdeps/hppa/fpu.orig/fegetenv.c	2006-01-14 10:17:19.000000000 -0800
+++ glibc-2.3.5/sysdeps/hppa/fpu/fegetenv.c	2006-01-14 10:19:08.000000000 -0800
@@ -27,10 +27,7 @@
   unsigned long long buf[4], *bufptr = buf;
 
   __asm__ (
-	   "fstd,ma %%fr0,8(%1)\n"
-	   "fstd,ma %%fr1,8(%1)\n"
-	   "fstd,ma %%fr2,8(%1)\n"
-	   "fstd %%fr3,0(%1)\n"
+	   "fstd %%fr0,0(%1)\n"
 	   : "=m" (buf), "+r" (bufptr));
   memcpy (envp, buf, sizeof (*envp));
   return 0;
diff -uNr glibc-2.3.5/sysdeps/hppa/fpu.orig/feholdexcpt.c glibc-2.3.5/sysdeps/hppa/fpu/feholdexcpt.c
--- glibc-2.3.5/sysdeps/hppa/fpu.orig/feholdexcpt.c	2006-01-14 10:17:19.000000000 -0800
+++ glibc-2.3.5/sysdeps/hppa/fpu/feholdexcpt.c	2006-01-14 10:20:21.000000000 -0800
@@ -30,10 +30,7 @@
   /* Store the environment.  */
   bufptr = clear.buf;
   __asm__ (
-	   "fstd,ma %%fr0,8(%1)\n"
-	   "fstd,ma %%fr1,8(%1)\n"
-	   "fstd,ma %%fr2,8(%1)\n"
-	   "fstd %%fr3,0(%1)\n"
+	   "fstd %%fr0,0(%1)\n"
 	   : "=m" (clear), "+r" (bufptr));
   memcpy (envp, &clear.env, sizeof (fenv_t));
 
@@ -47,10 +44,7 @@
   /* Load the new environment. */
   bufptr = clear.buf;
   __asm__ (
-	   "fldd,ma 8(%0),%%fr0\n"
-	   "fldd,ma 8(%0),%%fr1\n"
-	   "fldd,ma 8(%0),%%fr2\n"
-	   "fldd 0(%0),%%fr3\n"
+	   "fldd 0(%0),%%fr0\n"
 	   : : "r" (bufptr), "m" (clear));
 
   return 0;
diff -uNr glibc-2.3.5/sysdeps/hppa/fpu.orig/fesetenv.c glibc-2.3.5/sysdeps/hppa/fpu/fesetenv.c
--- glibc-2.3.5/sysdeps/hppa/fpu.orig/fesetenv.c	2006-01-14 10:17:19.000000000 -0800
+++ glibc-2.3.5/sysdeps/hppa/fpu/fesetenv.c	2006-01-14 10:20:44.000000000 -0800
@@ -34,10 +34,7 @@
      we want to use from the environment specified by the parameter.  */
   bufptr = temp.buf;
   __asm__ (
-	   "fstd,ma %%fr0,8(%1)\n"
-	   "fstd,ma %%fr1,8(%1)\n"
-	   "fstd,ma %%fr2,8(%1)\n"
-	   "fstd %%fr3,0(%1)\n"
+	   "fstd %%fr0,0(%1)\n"
 	   : "=m" (temp), "+r" (bufptr));
 
   temp.env.__status_word &= ~(FE_ALL_EXCEPT
@@ -56,9 +53,6 @@
   /* Load the new environment. */
   bufptr = temp.buf;
   __asm__ (
-	   "fldd,ma -8(%1),%%fr3\n"
-	   "fldd,ma -8(%1),%%fr2\n"
-	   "fldd,ma -8(%1),%%fr1\n"
 	   "fldd 0(%1),%%fr0\n"
 	   : "=m" (temp), "+r" (bufptr));
 



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Subject: Re: [parisc-linux] [Fwd: [patch/hppa] Floating point exception
	handling patch]
Date: Sun, 15 Jan 2006 23:22:12 -0700
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On Mon, Jan 16, 2006 at 07:38:36AM +0800, Randolph Chung wrote:
> This affects packages that use feholdexcept and
> fesetenv, such as uic from QT.

It's not a very long list.  I hacked the following short script
to search a local mirror I have access to.
Output from this script is appended at the end:

#!/bin/sh
#find -name \*.tar.gz 

find pool -name \*.tar.gz | while read i
do
x=`tar xzf $i -O | fgrep feholdexcept > /dev/null`
if [ $? -eq 0 ]
then
        echo $i
fi
done

[ In a related discussion, Randolph Chung noted "&& echo $i" would work.
  I guess that would probably be a more efficient than "if [ $? -eq ...". 
  But I didn't want to restart the script to find out.
]

Obviously there are some false positives (e.g. lg-issue40 and manpages).

enjoy,
grant

pool/contrib/x/xmovie/xmovie_1.9.orig.tar.gz
pool/main/f/fpc/fpc_1.9.4.orig.tar.gz
pool/main/f/fpc/fpc_2.0.0.orig.tar.gz
pool/main/g/gccchecker/gccchecker_0.9.9.1.20011205.orig.tar.gz
pool/main/g/gnulib/gnulib_0.0.20051110.orig.tar.gz
pool/main/h/helpviewer.app/helpviewer.app_0.3.orig.tar.gz
pool/main/h/hercules/hercules_3.0.2.orig.tar.gz
pool/main/h/hercules/hercules_3.03.1.orig.tar.gz
pool/main/l/lg-issue40/lg-issue40_1.orig.tar.gz
pool/main/l/lg-issue40/lg-issue40_2.orig.tar.gz
pool/main/l/lsbappchk/lsbappchk_1.3.4.orig.tar.gz
pool/main/m/manpages/manpages_1.39.orig.tar.gz
pool/main/m/manpages/manpages_1.70.orig.tar.gz
pool/main/m/manpages/manpages_2.17.orig.tar.gz
pool/main/m/manpages-es/manpages-es_1.55.orig.tar.gz
pool/main/m/manpages-fr/manpages-fr_0.9.3.orig.tar.gz
pool/main/m/manpages-fr/manpages-fr_1.58.1.orig.tar.gz
pool/main/m/manpages-fr/manpages-fr_1.67.0.orig.tar.gz
pool/main/m/manpages-ja/manpages-ja_0.4.0.0.20020315.orig.tar.gz
pool/main/m/manpages-ja/manpages-ja_0.5.0.0.20050315.orig.tar.gz
pool/main/m/manpages-ja/manpages-ja_0.5.0.0.20051115.orig.tar.gz
pool/main/m/manpages-pl/manpages-pl_20020406.orig.tar.gz
pool/main/m/manpages-pl/manpages-pl_20051117.orig.tar.gz
pool/main/m/manpages-pl/manpages-pl_20050320.orig.tar.gz
pool/main/o/openmcl/openmcl_0.10.1.orig.tar.gz
pool/main/o/openmcl/openmcl_0.14.2.p1.o.tar.gz
pool/main/p/pspp/pspp_0.3.0.orig.tar.gz
pool/main/p/pspp/pspp_0.4.0.orig.tar.gz
pool/main/p/portmidi/portmidi_20041117.orig.tar.gz
pool/main/q/qt-x11-free/qt-x11-free_3.3.4.orig.tar.gz
pool/main/q/qt-x11-free/qt-x11-free_3.3.5.orig.tar.gz
pool/main/q/qt4-x11/qt4-x11_4.1.0.orig.tar.gz
pool/main/q/qt4-x11/qt4-x11_4.0.1.orig.tar.gz
pool/main/t/tcc/tcc_0.9.23.orig.tar.gz
pool/main/u/uclibc/uclibc_0.9.27.orig.tar.gz
pool/non-free/m/manpages-posix/manpages-posix_1.67-3.tar.gz
pool/non-free/m/manpages-posix/manpages-posix_2.16-1.tar.gz

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On Sun, Jan 15, 2006 at 07:18:16PM +0000, Joel Soete wrote:
> Hello *,
> 
> Could we move all #ifdef __LP64__ to CONFIG_64BIT?
>

Er, why? One of them is shorter to write, and makes the
same amount of sense... I have no particularly preference at any
rate. In fact, using __LP64__ might be preferable, as CONFIG_64BIT
requires us including <linux/config.h> which means any change
to the config will cause this file to be rebuilt whether or not
it is actually required. Then again, it's entirely possible
my understanding of this config crap is antiquated.

Cheers,
	Kyle 
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On Mon, Jan 16, 2006 at 11:40:54AM -0500, Kyle McMartin wrote:
> Er, why? One of them is shorter to write, and makes the
> same amount of sense... I have no particularly preference at any
> rate. In fact, using __LP64__ might be preferable, as CONFIG_64BIT
> requires us including <linux/config.h> which means any change
> to the config will cause this file to be rebuilt whether or not
> it is actually required. Then again, it's entirely possible
> my understanding of this config crap is antiquated.

Doubly antiquated, I'm afraid.  Most recently, changes to the build
system mean that including <linux/config.h> is a no-op.  It's
automatically included for the files that need it.

The earlier antiquation happened many, many years ago, and it was
that the dependency writer (back in the days of 'make dep') treated
<linux/config.h> specially.  It scanned the file looking for CONFIG_*
symbols and added dependencies on the autobuilt include/config/ directory
(one file per config symbol).

I don't think we need to change from __LP64__ to CONFIG_64BIT overnight.
I think CONFIG_64IT has meaning to people from a non-HP environment, so
has slight clarity advantages.  If you're touching some code that uses
__LP64__, by all means do the conversion to CONFIG_64BIT, but don't do
it unnecessarily.
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Xref: news.gmane.org gmane.linux.ports.parisc:23379

On Mon, Jan 16, 2006 at 09:54:50AM -0700, Matthew Wilcox wrote:
> Doubly antiquated, I'm afraid.  Most recently, changes to the build
> system mean that including <linux/config.h> is a no-op.  It's
> automatically included for the files that need it.
> 
> The earlier antiquation happened many, many years ago, and it was
> that the dependency writer (back in the days of 'make dep') treated
> <linux/config.h> specially.  It scanned the file looking for CONFIG_*
> symbols and added dependencies on the autobuilt include/config/ directory
> (one file per config symbol).
>

Ok.
 
> I don't think we need to change from __LP64__ to CONFIG_64BIT overnight.
> I think CONFIG_64IT has meaning to people from a non-HP environment, so
> has slight clarity advantages.  If you're touching some code that uses
> __LP64__, by all means do the conversion to CONFIG_64BIT, but don't do
> it unnecessarily.
> 

Fair enough.
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Subject: [parisc-linux] stifb crash on 64bit kernel
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Hello,

I just tried the STI framebuffer driver (stifb) again with a 64bit kernel.
As we know it crashes, but I was wondering, why it crashes.
Aparently the mmap() implementation in fbmem.c [fb_mmap()] doesn't works correctly in 64bit mode.
The attached example program is a test-case to produce the crash. 
Just running it, will immediately crash the kernel while it tries to write into the mmapped area.

PCI_BUS_ADDR() and lmmio_space_offset in include/asm-parisc/pci.h looks interesting in this regard.
My 64bit box is the only one, where the graphics card is connected via PCI, and due to the F_EXTEND() macro we expand the physical address into the 0xffffffff00000000UL area.
Might it be, that we need to mmap() another region - maybe calculated with help of PCI_BUS_ADDR() - in the fb_mmap() function in order to make the 64bit graphics working on hppa ?

Any ideas ?

Helge

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#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <linux/fb.h>
#include <sys/mman.h>

/* taken from: http://www.sm5sxl.net/~mats/src/unix/graphics/fbtest/framebuffer.html */

int main()
{
        int fbfd = 0;
        struct fb_var_screeninfo vinfo;
        struct fb_fix_screeninfo finfo;
        long int screensize = 0;
        char *fbp = 0;
        int x = 0, y = 0;
        long int location = 0;

        /* Open the file for reading and writing */
        fbfd = open("/dev/fb0", O_RDWR);
        if (!fbfd) {
                printf("Error: cannot open framebuffer device.\n");
                exit(1);
        }
        printf("The framebuffer device was opened successfully.\n");

        /* Get fixed screen information */
        if (ioctl(fbfd, FBIOGET_FSCREENINFO, &finfo)) {
                printf("Error reading fixed information.\n");
                exit(2);
        }

        /* Get variable screen information */
        if (ioctl(fbfd, FBIOGET_VSCREENINFO, &vinfo)) {
                printf("Error reading variable information.\n");
                exit(3);
        }

        /* Figure out the size of the screen in bytes */
        screensize = vinfo.xres * vinfo.yres * vinfo.bits_per_pixel / 8;

        /* Map the device to memory */
        fbp = (char *)mmap(0, screensize, PROT_READ | PROT_WRITE, MAP_SHARED,
                fbfd, 0);
        if ((int)fbp == -1) { printf("Error: failed to map framebuffer device to memory.\n"); exit(4);
        }
        printf("The framebuffer device was mapped to memory successfully.\n");

        x = 100; y = 0;       /* Where we are going to put the pixel */

        /* Figure out where in memory to put the pixel */
        location = (x+vinfo.xoffset) * (vinfo.bits_per_pixel/8) +
                (y+vinfo.yoffset) * finfo.line_length;

/* the following lines will crash the 64bit kernel */
/* if commented out, no crash will happen */
#if 1
        *(fbp + location) = 100;        /* Some blue */
        *(fbp + location + 1) = 15;     /* A little green */
        *(fbp + location + 2) = 200;    /* A lot of red */
        *(fbp + location + 3) = 0;      /* No transparency */
#endif

        munmap(fbp, screensize);
        close(fbfd);
        return 0;
}

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On Mon, Jan 16, 2006 at 09:03:59AM -0800, Steve Langasek wrote:
> > This is a pretty short list... Would anyone object to binNMUs of the
> > effected packages on hppa, once a fixed glibc is uploaded?
> 
> If the bug is in glibc, why would any of these packages need binNMUs?

Only if they were statically linked - I doubt that's the case.

But the reason for the list was to make it easier for the buildd maintainer
to know which packages with previously failed builds could be requeued.

>   The
> only reason they would need rebuilt after a glibc bug fix would be if the
> glibc ABI changed in the process, and that would be Very Bad<tm>.

Yeah, hopefully that doesn't happen.

thanks,
grant


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Subject: Re: [parisc-linux] [Fwd: [patch/hppa] Floating point exception
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> >   The
> > only reason they would need rebuilt after a glibc bug fix would be if the
> > glibc ABI changed in the process, and that would be Very Bad<tm>.
> 
> Yeah, hopefully that doesn't happen.

As I have previously mentioned, there is a pending ABI issue affecting
the passing of complex and vector floating point numbers on the PA
(floats in particular on the 32-bit port, and both floats and doubles
on the 64-bit port).  It turns out we are using the wrong registers
to pass these types.

I'm considering fixing this in GCC 4.1 (patch under test this weekend).
We already have an ABI change under HP-UX in GCC 4.1 (dwarf2 exception
support).  I've also observered that there is an incompatibility in
libgcc under linux between 4.0 and 4.1.  I don't know if this is an ABI
change or not.  For these reasons, now is the time to fix these issue.

If anybody feels strongly that the status quo should be maintained
please let me know.  I'm going to bump the libgcc_s versions.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] [Fwd: [patch/hppa] Floating point exception
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On Mon, Jan 16, 2006 at 05:52:34PM -0500, John David Anglin wrote:
> > >   The
> > > only reason they would need rebuilt after a glibc bug fix would be if the
> > > glibc ABI changed in the process, and that would be Very Bad<tm>.
> > 
> > Yeah, hopefully that doesn't happen.
> 
> As I have previously mentioned, there is a pending ABI issue affecting
> the passing of complex and vector floating point numbers on the PA
> (floats in particular on the 32-bit port, and both floats and doubles
> on the 64-bit port).  It turns out we are using the wrong registers
> to pass these types.

sorry - I forgot about that.
Anyay, it's not a disaster.


> I'm considering fixing this in GCC 4.1 (patch under test this weekend).
> We already have an ABI change under HP-UX in GCC 4.1 (dwarf2 exception
> support).  I've also observered that there is an incompatibility in
> libgcc under linux between 4.0 and 4.1.  I don't know if this is an ABI
> change or not.  For these reasons, now is the time to fix these issue.
> 
> If anybody feels strongly that the status quo should be maintained
> please let me know.  I'm going to bump the libgcc_s versions.


Debian "testing" (etch) is officially using gcc 4.0, right?
Does Debian promote binaries from "unstable" (using gcc 4.1) to "testing"?

If this ABI roll goes through, I can help track down debian packages that
need to be rebuilt if given an existing sample file to look at.

grant
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Subject: Re: [parisc-linux] [Fwd: [patch/hppa] Floating point exception
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> Debian "testing" (etch) is officially using gcc 4.0, right?

The biggest impact is on glibc and code that uses the math "c" routines,
like csqrt () in libm.  I don't have any idea how many packages this
affects, but I doubt it's a lot.  This isn't an issue for hpux since
the HP library doesn't provide complex support under C at the moment.

I'm sorry I didn't spot this before when I worked on fixing the
passing of small structs.  However, you only see this stuff when
you debug related problems.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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In case anyone is interested I have been gradually setting up my environment
on the J2240 to match my i386 Red Hat 9 environment just to see how
compatible they really are.

Here's how things have worked out so far.

 

telnet: successful

 

ssh: successful

 

wu-ftp: successful.  Both anonymous and "real" ftp work.  Upload to J2240
works.  Some timeouts using Reflection FTP and DOS FTP. may have been
related to Norton Internet Security bug.  FTP via IE (i.e.
ftp://192.168.1.52 <ftp://192.168.1.52/> ) works.

 

Apache 2.0: successful.  Straight HTML, perl CGI (inc. postgresql), and php4
(inc. postgresql)

 

postgresql: successful.  Also upgraded to 8.1.2 via source and it works.
Had to use -without-readline and -without-zlib.  Also had to link
/var/run/postgresql/.s.PGSQL.5432 --> /tmp/.s.PGSQL.5432

 

perl: successful.  Command line and Apache2 CGI scripts work.  Had to
manually install Getopt::Mixed.pm because make failed.  Postgresql 8.1.2
access works.  Seems to be much slower than PIII/600 RH 9.0.  Killed test
script after 12 hours.  This script runs in 4 hours on PIII/600 RH 9.0 and
ActiveState perl under DOS.

 

php4: successful.  Command line and Apache2 work.  Postgresql 8.1.2 access
works.

 

ToDo:

X/XDMCP:  gdm runs, but desktop is really large (unusable) on the HP p1120
monitor.  Also mouse is not recognized. it does work with the HP-UX boot /
CDE.  Once I got telnet working I didn't spend much time on this.

xinetd (is this OK to use w/ Debian? i.e. with packages update xinetd
scripts or only inet?)

mysql

php5 (am I asking for trouble here?)

 

 

 

 

 

 

 

 


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<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>In case anyone is interested I have been gradually =
setting
up my environment on the J2240 to match my i386 Red Hat 9 environment =
just to
see how compatible they really are.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Here&#8217;s how things have worked out so =
far&#8230;<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>telnet: successful<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>ssh: successful<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>wu-ftp: successful.&nbsp; Both anonymous and =
&#8220;real&#8221;
ftp work.&nbsp; Upload to J2240 works.&nbsp; Some timeouts using =
Reflection FTP
and DOS FTP&#8230; may have been related to Norton Internet Security =
bug.&nbsp;
FTP via IE (i.e. <a href=3D"ftp://192.168.1.52/">ftp://192.168.1.52</a>) =
works.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Apache 2.0: successful.&nbsp; Straight HTML, perl CGI =
(inc.
postgresql), and php4 (inc. postgresql)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>postgresql: successful.&nbsp; Also upgraded to 8.1.2 =
via
source and it works.&nbsp; Had to use &#8211;without-readline and =
&#8211;without-zlib.&nbsp;
Also had to link /var/run/postgresql/.s.PGSQL.5432 </span></font><font =
size=3D2
face=3DWingdings><span =
style=3D'font-size:10.0pt;font-family:Wingdings'>&agrave;</span></font><f=
ont
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'>
/tmp/.s.PGSQL.5432<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>perl: successful.&nbsp; Command line and Apache2 CGI =
scripts
work.&nbsp; Had to manually install Getopt::Mixed.pm because make =
failed.&nbsp;
Postgresql 8.1.2 access works.&nbsp; Seems to be much slower than =
PIII/600 RH
9.0.&nbsp; Killed test script after 12 hours.&nbsp; This script runs in =
4 hours
on PIII/600 RH 9.0 and ActiveState perl under =
DOS.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>php4: successful.&nbsp; Command line and Apache2 =
work.&nbsp;
Postgresql 8.1.2 access works.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>ToDo:<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>X/XDMCP:&nbsp; gdm runs, but desktop is really large
(unusable) on the HP p1120 monitor.&nbsp; Also mouse is not =
recognized&#8230;
it does work with the HP-UX boot / CDE.&nbsp; Once I got telnet working =
I didn&#8217;t
spend much time on this.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>xinetd (is this OK to use w/ Debian? i.e. with =
packages
update xinetd scripts or only inet?)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>mysql<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>php5 (am I asking for trouble =
here?)<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

</div>

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On Tue, Jan 17, 2006 at 10:29:22AM -0700, Bjorn Helgaas wrote:
> Where's the cache flush of the modified region?  All the gory
> requirements are in the last few paragraphs of chapter 4 (page
> 4-10) of the PA 2.0 book.
>

Yeah, I forgot about that... The very next thing it does (before
it runs any effected code) was flush the entire data cache (but I missed
that it wasn't flushing icache).

I'll readd the sequence next rev.
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On Sun, Jan 08, 2006 at 02:13:03PM -0500, John David Anglin wrote:
> > in fr22 until after the SIGFPE.  It sort of looks like the exception
> > must be in __ieee754_acos.
> 
> Take that back.  The function calls feholdexcept (envp=0xc04fba68)
> and then fesetround (round=0) before the arithmetic exception.
> 
> (gdb) p/x *envp
> $2 = {__status_word = 0x1, __exception = {0x40000360, 0x1, 0x40000360,
>     0x4033af90, 0x4084c6b8, 0x4084c6b8, 0x0}}

There could be problems here. I noted in the release email that the FPU
stuff is not working well with the new compiler. I need to debug this.
If you can find a testcase then it would rock e.g. feholdexcept
and fesetround that doesn't set the right bits.

I'm glad teh libstdc++ tests are passing.

Cheers,
Carlos.
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On Tue, Jan 10, 2006 at 03:33:11PM +0800, Randolph Chung wrote:
> > The elf related failures are relatively new and related to binutils.
> > ---
> > 
> > I'm going to run the NPTL build and see how the tests turn out.
> > 
> > Anyone remember what the next step was?
> 
> I think the gcc stuff is all merged upstream already.
> 
> binutils stuff needs to be merged upstream. Perhaps we should look at
> those elf related failures first.

The constructor ordering issues? We have some failures now, but
are they regressions? Doesn't binutils head exhibit them?
 
> I don't think we are ready for NPTL yet. Did we settle on how we are
> implementing futexes? Are we going to implement a new kernel fsyscall
> for the compare-and-exchange primitive that NPTL seems to depend on?

The options in my mind are:

(1) VDSO implements atomic_compare_and_exchange.
(2) Continue to call LWS directly.

For testing we can continue to use (2).

c.

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> On Sun, Jan 08, 2006 at 02:13:03PM -0500, John David Anglin wrote:
> > > in fr22 until after the SIGFPE.  It sort of looks like the exception
> > > must be in __ieee754_acos.
> > 
> > Take that back.  The function calls feholdexcept (envp=0xc04fba68)
> > and then fesetround (round=0) before the arithmetic exception.
> > 
> > (gdb) p/x *envp
> > $2 = {__status_word = 0x1, __exception = {0x40000360, 0x1, 0x40000360,
> >     0x4033af90, 0x4084c6b8, 0x4084c6b8, 0x0}}
> 
> There could be problems here. I noted in the release email that the FPU
> stuff is not working well with the new compiler. I need to debug this.
> If you can find a testcase then it would rock e.g. feholdexcept
> and fesetround that doesn't set the right bits.

Randolph has a patch which he sent around a few days ago.  The
problem appears to be a sequencing issue with respect to fr0.
He dropped saving and restoring fr1, fr2 and fr3.  Debian may be
going to roll an hppa libc update in the near future.  It would
be nice to also get your other fixes into this update as well.

As I understand it, the exception bug causes a segmentation fault
in uic.  This blocks building qt-xfree86-free which blocks kde.
Thus, the issue is quite urgent.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Jan 17, 2006 at 03:48:51PM -0500, John David Anglin wrote:
> > On Sun, Jan 08, 2006 at 02:13:03PM -0500, John David Anglin wrote:
> > > > in fr22 until after the SIGFPE.  It sort of looks like the exception
> > > > must be in __ieee754_acos.
> > > 
> > > Take that back.  The function calls feholdexcept (envp=0xc04fba68)
> > > and then fesetround (round=0) before the arithmetic exception.
> > > 
> > > (gdb) p/x *envp
> > > $2 = {__status_word = 0x1, __exception = {0x40000360, 0x1, 0x40000360,
> > >     0x4033af90, 0x4084c6b8, 0x4084c6b8, 0x0}}
> > 
> > There could be problems here. I noted in the release email that the FPU
> > stuff is not working well with the new compiler. I need to debug this.
> > If you can find a testcase then it would rock e.g. feholdexcept
> > and fesetround that doesn't set the right bits.
> 
> Randolph has a patch which he sent around a few days ago.  The
> problem appears to be a sequencing issue with respect to fr0.
> He dropped saving and restoring fr1, fr2 and fr3.  Debian may be
> going to roll an hppa libc update in the near future.  It would
> be nice to also get your other fixes into this update as well.

Yes, I saw that patch, but Randolph didn't say why it fixes
the issue. There *was* a sequencing issue wrt to fr1,2,3 but we fixed
that in CVS. You have to restore fr0 last, and save it first, it's
not an impossible task :)
 
> As I understand it, the exception bug causes a segmentation fault
> in uic.  This blocks building qt-xfree86-free which blocks kde.
> Thus, the issue is quite urgent.

That is a bummer.

I'll post my debian patches soon then.

c.

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From: Kyle McMartin <kyle@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [RF{C,T} PATCH] chassis_power_off
Date: Wed, 18 Jan 2006 00:24:56 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:23391

I *think* this should fix halt -p with 2.6.16-rc1. Comments please...
The motivation for this is a recent change to sys_reboot(),

http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blobdiff;h=d8e49e659027f70de633b69d2efd13132a428bb5;hp=eecf84526afeca15c7e82894c5c3e898239fa062;hb=5e38291d80086f6972f471c7caffa03184de0bf0;f=kernel/sys.c

If nobody raises an objection to this, I'll commit it.

Cheers,
	Kyle

Index: arch/parisc/kernel/process.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/process.c,v
retrieving revision 1.26
diff -u -d -p -r1.26 process.c
--- arch/parisc/kernel/process.c	17 Jan 2006 14:50:31 -0000	1.26
+++ arch/parisc/kernel/process.c	18 Jan 2006 05:13:34 -0000
@@ -54,12 +54,6 @@
 #include <asm/uaccess.h>
 #include <asm/unwind.h>
 
-/*
- * Power off function, if any
- */ 
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
 void default_idle(void)
 {
 	barrier();
@@ -142,6 +136,7 @@ void machine_halt(void)
 	*/
 }
 
+void (*chassis_power_off)(void);
 
 /*
  * This routine is called from sys_reboot to actually turn off the
@@ -150,8 +145,8 @@ void machine_halt(void)
 void machine_power_off(void)
 {
 	/* If there is a registered power off handler, call it. */
-	if(pm_power_off)
-		pm_power_off();
+	if (chassis_power_off)
+		chassis_power_off();
 
 	/* Put the soft power button back under hardware control.
 	 * If the user had already pressed the power button, the
@@ -167,6 +162,8 @@ void machine_power_off(void)
 	       KERN_EMERG "Please power this system off now.");
 }
 
+void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
 
 /*
  * Create a kernel thread
Index: drivers/parisc/lasi.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/lasi.c,v
retrieving revision 1.21
diff -u -d -p -r1.21 lasi.c
--- drivers/parisc/lasi.c	17 Jan 2006 19:40:39 -0000	1.21
+++ drivers/parisc/lasi.c	18 Jan 2006 05:13:36 -0000
@@ -166,6 +166,7 @@ static void lasi_power_off(void)
 int __init
 lasi_init_chip(struct parisc_device *dev)
 {
+	extern void (*chassis_power_off)(void);
 	struct gsc_asic *lasi;
 	struct gsc_irq gsc_irq;
 	int ret;
@@ -222,7 +223,7 @@ lasi_init_chip(struct parisc_device *dev
 	 * ensure that only the first LASI (the one controlling the power off)
 	 * should set the HPA here */
 	lasi_power_off_hpa = lasi->hpa;
-	pm_power_off = lasi_power_off;
+	chassis_power_off = lasi_power_off;
 	
 	return ret;
 }
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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: Re: [parisc-linux] [RF{C,T} PATCH] chassis_power_off
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On Wed, Jan 18, 2006 at 12:24:56AM -0500, Kyle McMartin wrote:
> If nobody raises an objection to this, I'll commit it.
>

Oops. Fat fingers made me whack 'enter' before specifying include on the
atomic commit. If anyone has a problem with this change, I'll back it out. 
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] pci.h pb with gcc-4.0
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Xref: news.gmane.org gmane.linux.ports.parisc:23393

hello *,

mmm don't know if because I use gcc 4.0 but here is a pb I encounter to b=
uild
2.6.16-rc1-pa1 (+patch):

  gcc -Wp,-MD,arch/parisc/kernel/.pci.o.d  -nostdinc -isystem
/usr/lib/gcc/hppa-linux-gnu/4.0.3/include -D__KERNEL__ -Iinclude -Iinc
lude2 -I/CAD/linux-2.6.16-rc1-pa1/include -include include/linux/autoconf=
.h
-I/CAD/linux-2.6.16-rc1-pa1/arch/parisc/kernel -Iarch/pa
risc/kernel -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -ffreestanding -O2 -fomit-frame-pointe
r -pipe -mno-space-regs -mfast-indirect-calls -mdisable-fpregs
-ffunction-sections -march=3D2.0 -mschedule=3D8000 -Wdeclaration-after-st=

atement -Wno-pointer-sign  -D"KBUILD_STR(s)=3D#s"
-D"KBUILD_BASENAME=3DKBUILD_STR(pci)"  -D"KBUILD_MODNAME=3DKBUILD_STR(pci=
)" -c -o
arch/p
arisc/kernel/.tmp_pci.o /CAD/linux-2.6.16-rc1-pa1/arch/parisc/kernel/pci.=
c
/CAD/linux-2.6.16-rc1-pa1/arch/parisc/kernel/pci.c:56: error: static
declaration of \xe2\x80\x98pci_hba_count\xe2\x80\x99 follows no
n-static declaration
include2/asm/pci.h:206: error: previous declaration of
\xe2\x80\x98pci_hba_count\xe2\x80\x99 was here

as it doesn't seems to be used elsewhere I just apply following matter:
--- linux-2.6.16-rc1-pa1/include/asm-parisc/pci.h       2006-01-17
19:48:12.000000000 +0100
+++ linux-2.6.16-rc1-pa1-20060119/include/asm-parisc/pci.h      2006-01-1=
8
17:51:07.000000000 +0100
@@ -203,7 +203,7 @@
 */
 extern struct pci_port_ops *pci_port;
 extern struct pci_bios_ops *pci_bios;
-extern int pci_hba_count;
+/* extern int pci_hba_count; */
 extern struct pci_hba_data *parisc_pci_hba[];
 
 #ifdef CONFIG_PCI
=3D=3D=3D=3D<>=3D=3D=3D=3D

If agreed please fill free to apply (no cvs access ;-( )

TIA,
    Joel=0A=0A-------------------------------------------------------=0AN=
OTE! My email address is changing to ... @scarlet.be=0APlease make the ne=
cessary changes in your address book. =0A=0A

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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] pci.h pb with gcc-4.0
Date: Thu, 19 Jan 2006 11:28:21 -0700
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Cc: parisc-linux <parisc-linux@lists.parisc-linux.org>
To: Joel Soete <soete.joel@tiscali.be>
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Xref: news.gmane.org gmane.linux.ports.parisc:23394

On Thu, Jan 19, 2006 at 01:44:23PM +0100, Joel Soete wrote:
> hello *,
> 
> mmm don't know if because I use gcc 4.0 but here is a pb I encounter to build
> 2.6.16-rc1-pa1 (+patch):
...
> /CAD/linux-2.6.16-rc1-pa1/arch/parisc/kernel/pci.c:56: error: static
> declaration of \xe2\x80\x98pci_hba_count\xe2\x80\x99 follows no
> n-static declaration
> include2/asm/pci.h:206: error: previous declaration of
> \xe2\x80\x98pci_hba_count\xe2\x80\x99 was here

We can also remove the extern declaration of parisc_pci_hbap[].
I'll fix this by this weekend.

thanks,
grant
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From - Thu Nov 08 21:34:20 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] a small compile warning cleanup?
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Hello pa,

Attempting to get rid of this warning (gcc-4.0):
/CAD/linux-2.6.16-rc1-pa1-20060119/kernel/compat.c: In function
'compat_sys_timer_create':
/CAD/linux-2.6.16-rc1-pa1-20060119/kernel/compat.c:532: warning: implicit=

declaration of function 'get_compat_sigevent'

As used in severall places (2 at least), I thing this could help:
--- include/linux/compat_siginfo.h.Orig 2006-01-20 13:39:16.000000000 +01=
00
+++ include/linux/compat_siginfo.h      2006-01-20 13:40:40.000000000 +01=
00
@@ -177,6 +177,9 @@
 extern int compat_copy_sigevent_from_user(struct sigevent *to,
compat_sigevent_t __user *from);
 extern int compat_copy_sigevent_to_user(compat_sigevent_t __user *to, st=
ruct
sigevent *from);
 
+extern int get_compat_sigevent(struct sigevent *event,
+               const struct compat_sigevent __user *u_event);
+
 #endif /* CONFIG_COMPAT */
 #endif /* _ASM_GENERIC_COMPAT_SIGINFO_H */
 
=3D=3D=3D=3D<>=3D=3D=3D=3D

If agreed feel free to ci (no cvs access).

TIA,
    Joel
=0A=0A---------------------------------------------------------------=0AA=
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o on http://www.scarlet.be/

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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] rcu torture test panics on 2-way pa8800
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Xref: news.gmane.org gmane.linux.ports.parisc:23396

Hi,
I accidentally include RCU_TORTURE_TEST=y in the 2.6.16-rc1-pa2
kernels I was building and it worked fine on two out of three
of the rp3440 (pa8800 CPU) boxes I'm banging on.
(trying to sort out issues with L2 that I don't understand).

Got the following panic on the 2-core 800Mz box:

BUG: soft lockup detected on CPU#0!
...
IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001010ec1c 000000001010ec20
 IIR: 0f40109c    ISR: 00000000106c1a98  IOR: 0000000000000000
 CPU:        0   CR30: 0000000011ff0000 CR31: 00000000105bc000
 ORIG_R28: 00000000105b67a8
 IAOQ[0]: _spin_lock+0x4/0x20
 IAOQ[1]: _spin_lock+0x8/0x20
 RP(r2): rcu_torture_cb+0x11c/0x178

Full console output is appended.

This test seems to be running fine on 4-way 800 Mhz and 4-way 1Ghz.
I expect the timing will be different since 4-way has to talk across
the Mckinley bus and the 2-way (2 cores in one socket) communicate
across the L2.

I'm not sure if this is another clue to the L2 caching problems or 
exposing a bug in something related to our RCU implementation.
Maybe it's both. I don't know.

Has anyone else run with RCU_TORTURE_TEST=y ?

thanks,
grant



Firmware Version  45.11

Duplex Console IO Dependent Code (IODC) revision 1
------------------------------------------------------------------------------
   (c) Copyright 1995-2004, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0      800  MHz   Active                 Functional         33554432 33554432
      1      800  MHz   Idle                   Functional         33554432 33554432

  Central Bus Speed (in MHz)  :        200  
  Available Memory            :    4194300  KB
  Good Memory Required        : Not initialized. Defaults to 32 MB. 

   Primary boot path:    0/1/1/0.0           
   Alternate boot path:  0/0/2/0.3           
   Console path:         0/7/1/1.0           
   Keyboard path:        0/0/4/0.0           

   *** Manufacturing permissions ON ***
   System is hp server series



---- Main Menu ---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT|CON|KEY] [<path>]   Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands
     DeBug menu                        Displays debug commands
     MFG menu                          Displays manufacturing commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > bo
Interact with IPL (Y, N, or Cancel)?> y
...
Current command line:
1/vmlinux-2.6.16-rc1-pa1 pdcchassis=0 root=/dev/sda3 noudev panic=5 console=ttyS1
 0: 1/vmlinux-2.6.16-rc1-pa1
 1: pdcchassis=0
 2: root=/dev/sda3
 3: noudev
 4: panic=5
 5: console=ttyS1

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? b

Command line for kernel: 'pdcchassis=0 root=/dev/sda3 noudev panic=5 console=ttyS1 palo_kernel=1/vmlinux-2.6.16-rc1-pa1'
Selected kernel: /vmlinux-2.6.16-rc1-pa1 from partition 1
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4942808 mediaptr 0x1000
Segment 1 load 005b8000 size 437688 mediaptr 0x4b8000
Segment 2 load 00624000 size 545496 mediaptr 0x523000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.16-rc1-pa1 (grundler@gsyprf11) (gcc version 4.0.3 20051201 (prerelease) (Debian 4.0.2-5)) #3 SMP Thu Jan 19 17:26:22 PST 2006
FP[0] enabled: Rev 1 Model 20
The 64-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00008870 00000491 00000000 00000002 3e0505e7352af711 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 20 rev 4 (0x00000284)
capabilities 0x35
model 9000/800/rp3440  
parisc_cache_init: Only equivalent aliasing supported!
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
 1) Start 0x0000004040000000 End 0x00000040ffdfffff Size   3070 MB
Total Memory: 4094 MB
SMP: bootstrap CPU ID is 0
Built 2 zonelists
Kernel command line: pdcchassis=0 root=/dev/sda3 noudev panic=5 console=ttyS1 palo_kernel=1/vmlinux-2.6.16-rc1-pa1
PID hash table entries: 4096 (order: 12, 131072 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Memory: 4192256k available
Mount-cache hash table entries: 256
Brought up 1 CPUs
migration_cost=0
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Storm Peak Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x887, 0x00004 }
2. Storm Peak Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x887, 0x00004 }
3. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
4. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
5. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
6. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
7. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
8. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
9. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
10. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
11. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
12. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
Releasing cpu 1 now, hpa=fffffffffe781000
FP[1] enabled: Rev 1 Model 20
migration_cost=500
CPU(s): 2 x PA8800 (Mako) at 800.008700 MHz
Setting cache flush threshold to 26f9840 (2 CPUs online)
SBA found Pluto 2.3 at 0xfffffffffed00000
LBA version TR3.2 (0x32) found at 0xfffffffffed20000
LBA version TR3.2 (0x32) found at 0xfffffffffed22000
LBA version TR3.2 (0x32) found at 0xfffffffffed24000
LBA version TR3.2 (0x32) found at 0xfffffffffed26000
LBA version TR3.2 (0x32) found at 0xfffffffffed28000
LBA version TR3.2 (0x32) found at 0xfffffffffed2c000
LBA version TR3.2 (0x32) found at 0xfffffffffed2e000
LBA: Truncating lmmio_space [fffffffff0000000/fffffffffecffffe] to [fffffffff0000000,fffffffffe77ffff]
SCSI subsystem initialized
usbcore: registered new driver usbfs
usbcore: registered new driver hub
unwind_init: start = 0x104cf380, end = 0x104f9b90, entries = 10881
Performance monitoring counters enabled for Storm Peak Slow
rcutorture: --- Start of test: nreaders=4 stat_interval=0 verbose=0 test_no_idle_hz=0 shuffle_interval = 5
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
PDC Stable Storage facility v0.22
Soft power switch support not available.
STI GSC/PCI core graphics driver Version 0.9a
Generic RTC Driver v1.07
HP SDC: No SDC found.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
HP SDC MLC: Request for raw HIL ISR hook denied
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 73) is a 16450
0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 73) is a 16550A
0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 73) is a 16550A
0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 73) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 70
sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.2
  Vendor: HP 36.4G  Model: ST336753LC        Rev: HPC3
  Type:   Direct-Access                      ANSI SCSI revision: 03
 target0:0:0: tagged command queuing enabled, command queue depth 16.
 target0:0:0: Beginning Domain Validation
 target0:0:0: asynchronous
 target0:0:0: FAST-40 SCSI 40.0 MB/s ST (25 ns, offset 31)
 target0:0:0: Domain Validation skipping write tests
 target0:0:0: Ending Domain Validation
sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 71
sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.2.2
  Vendor: FUJITSU   Model: MAJ3364MC         Rev: HP12
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target1:0:2: tagged command queuing enabled, command queue depth 16.
 target1:0:2: Beginning Domain Validation
 target1:0:2: asynchronous
 target1:0:2: FAST-40 SCSI 40.0 MB/s ST (25 ns, offset 31)
 target1:0:2: Domain Validation skipping write tests
 target1:0:2: Ending Domain Validation
SCSI device sda: 71132960 512-byte hdwr sectors (36420 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write through w/ FUA
SCSI device sda: 71132960 512-byte hdwr sectors (36420 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write through w/ FUA
 sda: sda1 sda2 sda3
sd 0:0:0:0: Attached scsi disk sda
SCSI device sdb: 71132960 512-byte hdwr sectors (36420 MB)
sdb: Write Protect is off
SCSI device sdb: drive cache: write back w/ FUA
SCSI device sdb: 71132960 512-byte hdwr sectors (36420 MB)
sdb: Write Protect is off
SCSI device sdb: drive cache: write back w/ FUA
 sdb: unknown partition table
sd 1:0:2:0: Attached scsi disk sdb
sd 0:0:0:0: Attached scsi generic sg0 type 0
sd 1:0:2:0: Attached scsi generic sg1 type 0
usbmon: debugfs is not available
ehci_hcd 0000:00:01.2: EHCI Host Controller
ehci_hcd 0000:00:01.2: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:01.2: irq 68, io mem 0xffffffff80000000
ehci_hcd 0000:00:01.2: USB 2.0 started, EHCI 0.95, driver 10 Dec 2004
usb usb1: Product: EHCI Host Controller
usb usb1: Manufacturer: Linux 2.6.16-rc1-pa1 ehci_hcd
usb usb1: SerialNumber: 0000:00:01.2
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 5 ports detected
ohci_hcd 0000:00:01.0: OHCI Host Controller
ohci_hcd 0000:00:01.0: new USB bus registered, assigned bus number 2
ohci_hcd 0000:00:01.0: irq 66, io mem 0xffffffff80002000
usb usb2: Product: OHCI Host Controller
usb usb2: Manufacturer: Linux 2.6.16-rc1-pa1 ohci_hcd
usb usb2: SerialNumber: 0000:00:01.0
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 3 ports detected
ohci_hcd 0000:00:01.1: OHCI Host Controller
ohci_hcd 0000:00:01.1: new USB bus registered, assigned bus number 3
ohci_hcd 0000:00:01.1: irq 67, io mem 0xffffffff80001000
usb usb3: Product: OHCI Host Controller
usb usb3: Manufacturer: Linux 2.6.16-rc1-pa1 ohci_hcd
usb usb3: SerialNumber: 0000:00:01.1
usb usb3: configuration #1 chosen from 1 choice
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
usbcore: registered new driver libusual
mice: PS/2 mouse device common for all mice
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
raid5: measuring checksumming speed
   8regs     :  3840.000 MB/sec
   8regs_prefetch:  2840.000 MB/sec
   32regs    :  3816.000 MB/sec
   32regs_prefetch:  3124.000 MB/sec
raid5: using function: 8regs (3840.000 MB/sec)
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
Advanced Linux Sound Architecture Driver Version 1.0.11rc2 (Wed Jan 04 08:57:20 2006 UTC).
ALSA device list:
  No soundcards found.
oprofile: using timer interrupt.
NET: Registered protocol family 2
IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: Badness in smp_call_function at arch/parisc/kernel/smp.c:348
Backtrace:
 [<00000000101125f8>] dump_stack+0x18/0x28
 [<000000001011c4d8>] smp_call_function+0x90/0x398
 [<00000000101119b4>] flush_data_cache+0x2c/0x48
 [<0000000010110d48>] free_initmem+0x68/0x310
 [<000000001010fe00>] init+0x688/0x7f8
 [<000000001010347c>] ret_from_kernel_thread+0x24/0x40

536k freed
Write protecting the kernel read-only data: 356k
Failed to mount /selinux/: No such file or directory
INIT: version 2.86 booting
Activating swap...
.
Checking root file system.../dev/sda3: clean, 147172/4308992 files, 820135/8612848 blocks
.
Cleaning up ifupdown...done.
Calculating module dependencies...done.
Loading modules...
    tg3
tg3.c:v3.47 (Dec 28, 2005)
eth0: Tigon3 [partno(BCM95700A6) rev 0105 PHY(5701)] (PCI:66MHz:64-bit) 10/100/1000BaseT Ethernet 00:30:6e:4b:16:4d
eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] Split[0] WireSpeed[1] TSOcap[0] 
eth0: dma_rwctrl[76ff2d0f]
All modules loaded.
Setting the System Clock using the Hardware Clock as reference
System Clock set. Local time: Sun Jan 22 04:28:35 UTC 2006
.
Checking all file systems.../dev/sda1: clean, 50/26104 files, 79469/104388 blocks
.
Setting kernel variables ...
... done.
Mounting local filesystems.../dev/sda1 on /boot type ext2 (rw)
.
Cleaning /tmp....
Cleaning /var/run ....
Cleaning /var/lock ....
Running 0dns-down to make sure resolv.conf is ok...done.
Setting up networking...done.
Starting hotplug subsystem:
   pci     
     tg3: already loaded
     ignoring pci display device e0:02.0
   pci      [success]
   usb     
   usb      [success]
   isapnp  
   isapnp   [success]
   ide     
   ide      [success]
   input   
   input    [success]
   scsi    
     sd_mod: can't be loaded (for disk)
     sd_mod: can't be loaded (for disk)
   scsi     [success]
done.
* /etc/network/options is deprecated.
Setting up IP spoofing protection...done (rp_filter).
Configuring network interfaces...Internet Software Consortium DHCP Client 2.0pl5
Copyright 1995, 1996, 1997, 1998, 1999 The Internet Software Consortium.
All rights reserved.

Please contribute if you find this software useful.
For info, please visit http://www.isc.org/dhcp-contrib.html

Listening on LPF/eth0/00:30:6e:4b:16:4d
Sending on   LPF/eth0/00:30:6e:4b:16:4d
Sending on   Socket/fallback/fallback-net
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7
tg3: eth0: Link is up at 1000 Mbps, full duplex.
tg3: eth0: Flow control is off for TX and off for RX.
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 14
DHCPOFFER from 192.168.1.61
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPACK from 192.168.1.61
bound to 192.168.1.10 -- renewal in 302400 seconds.
done.
Starting portmap daemon: portmap.
Setting the System Clock using the Hardware Clock as reference
System Clock set. Local time: Sun Jan 22 04:29:08 UTC 2006
.
Running ntpdate to synchronize clockError : Temporary failure in name resolution
.
Initializing random number generator....
Recovering nvi editor sessions... done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogd.
Starting kernel log daemon: klogd.
Not starting portmap daemon.  Already running.
Starting Distributed Compiler Daemon: distccd.
Starting internet superserver: inetd.
Starting network benchmark server: netserver.
Starting Name Service Cache Daemon: nscd/usr/sbin/nscd: error while loading shared libraries: unexpected reloc type 0x42
.
Starting mail transport agent: Postfix

BUG: soft lockup detected on CPU#0!

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001111 Not tainted
r00-03  0000000000000000 000000001060b740 00000000101717dc 00000000106ce558
r04-07  000000001060a740 0000000010514b3c 0000000000000001 0000000000000000
r08-11  0000000000000001 0000000011ff0240 0000000000000001 000f434be4ce66c0
r12-15  0000000011ca0970 0000000000000000 00000000ffbfffff 00000000ffffffff
r16-19  0000000011ff0240 00000000ffffffff 00000000ffffffff 000000001059fc40
r20-23  000000000800000f 000000000800000f 0000000100128d00 0000000000000000
r24-27  0000000100128d04 0000004052a16688 0000000010514b3c 000000001060a740
r28-31  0000000000000000 0000000011ff09e0 0000000011ff0a10 00000000106ce010
sr0-3   000000000028a000 0000000000000000 0000000000000000 000000000028a000
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  0000000000000802 0000000010624000 00000000101a1bd4 00000000106aa000
fr08-11  0000000000000000 0000000011c6b000 0000000011c66ac0 0000000011c6b000
fr12-15  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr16-19  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr20-23  0000000000000000 0000000000000000 000000000000dda3 000000000000000e
fr24-27  0000000000000000 000f41fa2e797100 000000000804000e 0000000000000000
fr28-31  0000000011c6b000 fffffffffffffc18 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001010ec1c 000000001010ec20
 IIR: 0f40109c    ISR: 00000000106c1a98  IOR: 0000000000000000
 CPU:        0   CR30: 0000000011ff0000 CR31: 00000000105bc000
 ORIG_R28: 00000000105b67a8
 IAOQ[0]: _spin_lock+0x4/0x20
 IAOQ[1]: _spin_lock+0x8/0x20
 RP(r2): rcu_torture_cb+0x11c/0x178

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From - Thu Nov 08 21:34:21 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] very weird pb with libgtk2.0-0 since upgrade: many
	gui segv ; -(
Date: Sat, 21 Jan 2006 18:59:17 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:23397

Hi all,

I put additional question about
<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D348109>

here because I presume there would be few who facing this pb ;_(

In short:

since this apt-get dist-upgrade:
### Mon Dec 19 09:38:46 2005 ###

Reading package lists...
Building dependency tree...
Starting
Starting 2
Investigating libsnmpkit2c2a
Package libsnmpkit2c2a has broken dep on libsnmpkit2c2
  Considering libsnmpkit2c2 1 as a solution to libsnmpkit2c2a 2
  Added libsnmpkit2c2 to the remove list
  Fixing libsnmpkit2c2a via remove of libsnmpkit2c2
Investigating libprinterconf0c2a
Package libprinterconf0c2a has broken dep on libprinterconf0c2
  Considering libprinterconf0c2 0 as a solution to libprinterconf0c2a 1
  Added libprinterconf0c2 to the remove list
  Fixing libprinterconf0c2a via remove of libprinterconf0c2
Investigating libsvncpp0c2a
Package libsvncpp0c2a has broken dep on libsvncpp0c2
  Considering libsvncpp0c2 0 as a solution to libsvncpp0c2a 0
  Holding Back libsvncpp0c2a rather than change libsvncpp0c2
Investigating rapidsvn
Package rapidsvn has broken dep on libsvncpp0c2a
  Considering libsvncpp0c2a 0 as a solution to rapidsvn 0
  Holding Back rapidsvn rather than change libsvncpp0c2a
 Try to Re-Instate rapidsvn
Done
The following packages will be REMOVED:
  libprinterconf0c2 libsnmpkit2c2
The following NEW packages will be installed:
  firefox irssi libcairo2 libpoppler0c2 libprinterconf0c2a libsnmpkit2c2a=

  vim-runtime
The following packages have been kept back:
  rapidsvn
The following packages will be upgraded:
  base-passwd binutils binutils-dev binutils-doc cogito db4.2-util db4.3-=
util
  debianutils debsums dialog dpatch fakeroot git-core glibc-doc groff
  groff-base irb1.8 irssi-text kernel-package libasound2 libc6 libc6-dev
  libc6-pic libcupsys2 libdb4.2 libdb4.3 libdbm-ruby1.8 libgtk2.0-0
  libgtk2.0-bin libgtk2.0-common libgtk2.0-doc libkpathsea4 libkrb53
  libpango1.0-0 libpango1.0-common libperl5.8 libreadline-ruby1.8 libruby=
1.8
  libssl-dev libssl0.9.8 libtcltk-ruby1.8 lintian locales make manpages
  manpages-dev menu mozilla-firefox netcat openssl pciutils pconf-detect =
perl
  perl-base perl-doc perl-modules rdoc1.8 ri1.8 ruby1.8 ruby1.8-examples =
scite
  stunnel syslinux tetex-bin transfig vim vim-common xprint xprint-common=

69 upgraded, 7 newly installed, 2 to remove and 1 not upgraded.
Need to get 0B/86.8MB of archives.
After unpacking 9374kB of additional disk space will be used.
Do you want to continue [Y/n]? Reading changelogs...

many gui like gftp-gtk, firefox, d4x, gdmsetup,... segv.
(as well as runing on p-l as i386 boxes :_( )

Fwiw, this only occures with my operational hpux 11.00 CDE graphical env =
and
not with some other sun cde (sparc solaris 9) or xfce debian unstable (i3=
86).

the only w-a I found is to downgrade libgtk2.0 by using previous:
libgtk2.0-common_2.6.10-1_all.deb libgtk2.0-bin_2.6.10-1_i386.deb \
libgtk2.0-0_2.6.10-1_i386.deb libgtk2.0-doc_2.6.10-1_all.deb

That why I select this specific pkg as br target, though.

gdb (for i386 and p-l) seems useless:
# gdb
GNU gdb 6.4-debian
Copyright 2005 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "i486-linux-gnu".
(gdb) target core ./core
Using host libthread_db library "/lib/tls/libthread_db.so.1".
(no debugging symbols found)
Core was generated by `/usr/bin/gftp-gtk'.
Program terminated with signal 11, Segmentation fault.
#0  0x00000000 in ?? ()

Any idea how should I investigate in more detail?

TIA,
    Joel

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o on http://www.scarlet.be/

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From - Thu Nov 08 21:34:21 2018
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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] [RFC] Updated glibc 2.3.5-8.1
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Cc: Randolph Chung <tausq@debian.org>,
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To: "Carlos O'Donell" <carlos@systemhalted.org>
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Carlos O'Donell wrote:
> Updated glibc 2.3.5-8.1
> 
> Contains the following extra fixes:
> 
> - Added relocation support for:
> 	= DIR21L, DIR14R, PLABEL21L, PLABEL21R.
> 
> - Fixed return value restore in syscall cancellation
> 
> - Probably messed up fpu code but made it more compliant
>   with the fr0 save/restore of T-bit.
> 
> - Removed implied routines for 128-bit long double, default
>   should be whatever gcc uses for long double (DFmode).
> 
> Update located:
> http://www.parisc-linux.org/~carlos/glibc-work/glibc-2.3.5-debs-2006-01-07/
> 
mmm, isn't it possible to add your .diff.gz (may be also .dsc),
that would help me a lot to countinue my test with gcc-4.0 ;-)

[...]
> 
> This is probably the patch set I will send upstream.
> 
TIA,
	Joel
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] rcu torture test panics on 2-way pa8800
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On Sun, Jan 22, 2006 at 12:13:08AM -0700, Grant Grundler wrote:
> Hi,
> I accidentally include RCU_TORTURE_TEST=y in the 2.6.16-rc1-pa2
> kernels I was building and it worked fine on two out of three
> of the rp3440 (pa8800 CPU) boxes I'm banging on.
...
> Got the following panic on the 2-core 800Mz box:

FYI.

One of the 4-way 800Mhz rp3440's ran rcu torture test overnight:
ioz:/usr/src/linux-2.6# w
 10:27:57 up 10:46,  1 user,  load average: 9.01, 9.01, 9.00
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
root     ttyS1    -                23:45    0.00s  0.73s  0.04s w
ioz:/usr/src/linux-2.6# uname -a
Linux ioz 2.6.16-rc1-pa1 #3 SMP Thu Jan 19 17:26:22 PST 2006 parisc64 GNU/Linux


top - 10:27:33 up 10:45,  1 user,  load average: 9.01, 9.02, 9.00
Tasks:  78 total,   9 running,  69 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.0% us, 99.8% sy,  0.0% ni,  0.2% id,  0.0% wa,  0.0% hi,  0.0% si
Mem:   2053212k total,   976424k used,  1076788k free,   162632k buffers
Swap:        0k total,        0k used,        0k free,   482212k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND           
  135 root      39  19     0    0    0 R 67.6  0.0 318:58.94 rcu_torture_rea    
  129 root      39  19     0    0    0 R 50.2  0.0 320:48.46 rcu_torture_rea    
  130 root      39  19     0    0    0 R 50.2  0.0 317:37.93 rcu_torture_rea    
  128 root      39  19     0    0    0 R 48.3  0.0 317:52.39 rcu_torture_rea    ...

something is clearly working differently on the 2-way (single socket)
machine. I'm inclined to believe it's a clue about L2 cache at this point.

grant
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I'm almost there with X from the console.  Gnome "looks" good.  I finally
got the video settings where I want them, I just can't seem to get the mouse
to work.  I've tried almost every option via `dpkg-reconfigure
xserver-xfree86`, but no luck.  I rebooted into HP-UX and the mouse does
work there, so it isn't a hardware problem.  HP-UX sees the mouse as "8/12/7
Built-in Keyboard/Mouse ps2 ".  Hopefully some of the information below will
show the error of my ways.  Any help would be greatly appreciated!!!!

 

 

 

 

/etc/X11/XF86Config-4:

Section "InputDevice"

        Identifier      "Configured Mouse"

        Driver          "mouse"

        Option          "CorePointer"

        Option          "Device"                "/dev/psaux"

        Option          "Protocol"              "PS/2"

        Option          "Emulate3Buttons"       "true"

        Option          "ZAxisMapping"          "4 5"

EndSection

 

ll /dev/psaux

crw-rw----  1 root root 10, 1 Jan 22 15:30 /dev/psaux

 

 

End of XFree86.0.log

 

(II) Keyboard "Generic Keyboard" handled by legacy driver

(**) Option "Protocol" "PS/2"

(**) Configured Mouse: Protocol: "PS/2"

(**) Option "CorePointer"

(**) Configured Mouse: Core Pointer

(**) Option "Device" "/dev/psaux"

(**) Option "Emulate3Buttons" "true"

(**) Configured Mouse: Emulate3Buttons, Emulate3Timeout: 50

(**) Option "ZAxisMapping" "4 5"

(**) Configured Mouse: ZAxisMapping: buttons 4 and 5

(**) Configured Mouse: Buttons: 5

(II) XINPUT: Adding extended input device "Configured Mouse" (type: MOUSE)

(II) Configured Mouse: ps2EnableDataReporting: succeeded

Could not init font path element unix/:7100, removing from list!

AUDIT: Sun Jan 22 16:09:07 2006: 3943 X: client 4 rejected from local host

 

 

howlin:/boot# grep -i mouse config-2.6.8-2-32-smp

CONFIG_INPUT_MOUSEDEV=y

CONFIG_INPUT_MOUSEDEV_PSAUX=y

CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024

CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768

CONFIG_INPUT_MOUSEDEV_PSAUX_ENABLE=y

CONFIG_INPUT_MOUSE=y

CONFIG_MOUSE_PS2=m

CONFIG_MOUSE_SERIAL=m

CONFIG_MOUSE_INPORT=m

# CONFIG_MOUSE_ATIXL is not set

CONFIG_MOUSE_LOGIBM=m

CONFIG_MOUSE_PC110PAD=m

CONFIG_MOUSE_VSXXXAA=m

CONFIG_MOUSE_HIL=m

CONFIG_USB_MOUSE=m

 

 


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	{page:Section1;}
-->
</style>

</head>

<body lang=3DEN-US link=3Dblue vlink=3Dpurple>

<div class=3DSection1>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I&#8217;m almost there with X from the console.&nbsp; =
Gnome &#8220;looks&#8221;
good.&nbsp; I finally got the video settings where I want them, I just =
can&#8217;t
seem to get the mouse to work.&nbsp; I&#8217;ve tried almost every =
option via `dpkg-reconfigure
xserver-xfree86`, but no luck.&nbsp; I rebooted into HP-UX and the mouse =
does
work there, so it isn&#8217;t a hardware problem.&nbsp; HP-UX sees the =
mouse as
&#8220;8/12/7 Built-in Keyboard/Mouse ps2 &#8220;.&nbsp; Hopefully some =
of the
information below will show the error of my ways.&nbsp; Any help would =
be
greatly appreciated!!!!<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>/etc/X11/XF86Config-4:<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>Section =
&quot;InputDevice&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;
Identifier&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &quot;Configured =
Mouse&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;
Driver&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&quot;mouse&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;
Option&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&quot;CorePointer&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;
Option&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&quot;Device&quot;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&quot;/dev/psaux&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;
Option&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&quot;Protocol&quot;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;
&quot;PS/2&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;
Option&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&quot;Emulate3Buttons&quot;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&quot;true&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;
Option&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&quot;ZAxisMapping&quot;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;
&quot;4 5&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>EndSection<o:p></o:p></span=
></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>ll /dev/psaux<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"r_ansi"><span =
style=3D'font-size:10.0pt;
font-family:r_ansi'>crw-rw----&nbsp; 1 root root 10, 1 Jan 22 15:30 =
/dev/psaux</span></font><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p=
>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>End of XFree86.0.log<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>(II) Keyboard =
&quot;Generic
Keyboard&quot; handled by legacy driver<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>(**) Option =
&quot;Protocol&quot;
&quot;PS/2&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>(**) Configured Mouse: =
Protocol:
&quot;PS/2&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>(**) Option =
&quot;CorePointer&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>(**) Configured Mouse: =
Core Pointer<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>(**) Option =
&quot;Device&quot;
&quot;/dev/psaux&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>(**) Option
&quot;Emulate3Buttons&quot; =
&quot;true&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>(**) Configured Mouse:
Emulate3Buttons, Emulate3Timeout: 50<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>(**) Option
&quot;ZAxisMapping&quot; &quot;4 5&quot;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>(**) Configured Mouse:
ZAxisMapping: buttons 4 and 5<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>(**) Configured Mouse: =
Buttons: 5<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>(II) XINPUT: Adding =
extended input
device &quot;Configured Mouse&quot; (type: =
MOUSE)<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>(II) Configured Mouse:
ps2EnableDataReporting: succeeded<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>Could not init font path =
element
unix/:7100, removing from list!<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"r_ansi"><span =
style=3D'font-size:10.0pt;
font-family:r_ansi'>AUDIT: Sun Jan 22 16:09:07 2006: 3943 X: client 4 =
rejected
from local host</span></font><font size=3D2 face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial'><o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>howlin:/boot# grep -i =
mouse
config-2.6.8-2-32-smp<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>CONFIG_INPUT_MOUSEDEV=3Dy<o=
:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>CONFIG_INPUT_MOUSEDEV_PSAUX=
=3Dy<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>CONFIG_INPUT_MOUSEDEV_SCREE=
N_X=3D1024<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>CONFIG_INPUT_MOUSEDEV_SCREE=
N_Y=3D768<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>CONFIG_INPUT_MOUSEDEV_PSAUX=
_ENABLE=3Dy<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>CONFIG_INPUT_MOUSE=3Dy<o:p>=
</o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>CONFIG_MOUSE_PS2=3Dm<o:p></=
o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>CONFIG_MOUSE_SERIAL=3Dm<o:p=
></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>CONFIG_MOUSE_INPORT=3Dm<o:p=
></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'># CONFIG_MOUSE_ATIXL is =
not set<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>CONFIG_MOUSE_LOGIBM=3Dm<o:p=
></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>CONFIG_MOUSE_PC110PAD=3Dm<o=
:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>CONFIG_MOUSE_VSXXXAA=3Dm<o:=
p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>CONFIG_MOUSE_HIL=3Dm<o:p></=
o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"r_ansi"><span =
style=3D'font-size:10.0pt;
font-family:r_ansi'>CONFIG_USB_MOUSE=3Dm</span></font><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p=
>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

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Try this:

Section "InputDevice"
	Identifier	"Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
	Option		"ZAxisMapping"		"4 5"
EndSection

Helge

On Sunday 22 January 2006 22:26, Craig D. Lansing wrote:
> 
> I'm almost there with X from the console.  Gnome "looks" good.  I finally
> got the video settings where I want them, I just can't seem to get the mouse
> to work.  I've tried almost every option via `dpkg-reconfigure
> xserver-xfree86`, but no luck.  I rebooted into HP-UX and the mouse does
> work there, so it isn't a hardware problem.  HP-UX sees the mouse as "8/12/7
> Built-in Keyboard/Mouse ps2 ".  Hopefully some of the information below will
> show the error of my ways.  Any help would be greatly appreciated!!!!
> 
> /etc/X11/XF86Config-4:
> 
> Section "InputDevice"
> 
>         Identifier      "Configured Mouse"
> 
>         Driver          "mouse"
> 
>         Option          "CorePointer"
> 
>         Option          "Device"                "/dev/psaux"
> 
>         Option          "Protocol"              "PS/2"
> 
>         Option          "Emulate3Buttons"       "true"
> 
>         Option          "ZAxisMapping"          "4 5"
> 
> EndSection
> 
>  
> 
> ll /dev/psaux
> 
> crw-rw----  1 root root 10, 1 Jan 22 15:30 /dev/psaux
> 
>  
> 
>  
> 
> End of XFree86.0.log
> 
>  
> 
> (II) Keyboard "Generic Keyboard" handled by legacy driver
> 
> (**) Option "Protocol" "PS/2"
> 
> (**) Configured Mouse: Protocol: "PS/2"
> 
> (**) Option "CorePointer"
> 
> (**) Configured Mouse: Core Pointer
> 
> (**) Option "Device" "/dev/psaux"
> 
> (**) Option "Emulate3Buttons" "true"
> 
> (**) Configured Mouse: Emulate3Buttons, Emulate3Timeout: 50
> 
> (**) Option "ZAxisMapping" "4 5"
> 
> (**) Configured Mouse: ZAxisMapping: buttons 4 and 5
> 
> (**) Configured Mouse: Buttons: 5
> 
> (II) XINPUT: Adding extended input device "Configured Mouse" (type: MOUSE)
> 
> (II) Configured Mouse: ps2EnableDataReporting: succeeded
> 
> Could not init font path element unix/:7100, removing from list!
> 
> AUDIT: Sun Jan 22 16:09:07 2006: 3943 X: client 4 rejected from local host
> 
>  
> 
>  
> 
> howlin:/boot# grep -i mouse config-2.6.8-2-32-smp
> 
> CONFIG_INPUT_MOUSEDEV=y
> 
> CONFIG_INPUT_MOUSEDEV_PSAUX=y
> 
> CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
> 
> CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
> 
> CONFIG_INPUT_MOUSEDEV_PSAUX_ENABLE=y
> 
> CONFIG_INPUT_MOUSE=y
> 
> CONFIG_MOUSE_PS2=m
> 
> CONFIG_MOUSE_SERIAL=m
> 
> CONFIG_MOUSE_INPORT=m
> 
> # CONFIG_MOUSE_ATIXL is not set
> 
> CONFIG_MOUSE_LOGIBM=m
> 
> CONFIG_MOUSE_PC110PAD=m
> 
> CONFIG_MOUSE_VSXXXAA=m
> 
> CONFIG_MOUSE_HIL=m
> 
> CONFIG_USB_MOUSE=m
> 
>  
> 
>  
> 
> 
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: "Craig D. Lansing" <clansing@charter.net>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] J2240 mouse
Date: Sun, 22 Jan 2006 19:30:50 -0500
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Cc: "'Helge Deller'" <deller@gmx.de>,
 <parisc-linux@lists.parisc-linux.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:23402


I was not at the console, but I did the following from a telnet session...

howlin:~# modprobe psmouse
howlin:~#

A little later I noticed a message on the console...

Input: PS/2 Logitech Mouse on parisc8:12:8
Ts: Compaq touchscreen protocol output

All works now in X, even the important stuff like mahjongg.  Thanx for the
help!!!!!!!!!!!!!


Here's the list of what is now working:
perl 5.8.4
php 4.3.10
php 5.1.2 (installed from source)
PostgreSQL 8.1.2 (installed from source)
Apache 2.0 (inc. perl CGI, php4, and php5 w/ PostgreSQL 8.1.2)
MySQL (installed and daemons run, I have not created a database)
wu-ftp
telnet
ssh
X (finally, inc. GNOME on HP p1120 console, remote sessions),  No XDMCP.

I'm impressed.  I'm glad I didn't haul the "J" to the dump.


-----Original Message-----
From: Richard Hirst [mailto:rhirst@levanta.com] 
Sent: Sunday, January 22, 2006 6:35 PM
To: Craig D. Lansing
Cc: 'Helge Deller'; parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] J2240 mouse

Have you tried 'modprobe psmouse' ?

Richard

On Sun, Jan 22, 2006 at 04:58:16PM -0500, Craig D. Lansing wrote:
> I'm fairly sure I tried that one, but just to safe I tried again.  Still
> nothing when moving the mouse or using any of the 3 buttons.
> 
> Section "InputDevice"
>         Identifier      "Mouse"
>         Driver          "mouse"
>         Option          "CorePointer"
>         Option          "Device"                "/dev/input/mice"
>         Option          "Protocol"              "ImPS/2"
>         Option          "ZAxisMapping"          "4 5"
> EndSection
> 
> [snip]
> 
> Section "ServerLayout"
>         Identifier      "Default Layout"
>         Screen          "Default Screen"
>         InputDevice     "Generic Keyboard"
>         InputDevice     "Mouse"
> EndSection
> 
> 
> 
> -----Original Message-----
> From: Helge Deller [mailto:deller@gmx.de] 
> Sent: Sunday, January 22, 2006 4:36 PM
> To: parisc-linux@lists.parisc-linux.org
> Cc: Craig D. Lansing
> Subject: Re: [parisc-linux] J2240 mouse
> 
> Try this:
> 
> Section "InputDevice"
> 	Identifier	"Mouse"
> 	Driver		"mouse"
> 	Option		"CorePointer"
> 	Option		"Device"		"/dev/input/mice"
> 	Option		"Protocol"		"ImPS/2"
> 	Option		"ZAxisMapping"		"4 5"
> EndSection
> 
> Helge
> 
> On Sunday 22 January 2006 22:26, Craig D. Lansing wrote:
> > 
> > I'm almost there with X from the console.  Gnome "looks" good.  I
finally
> > got the video settings where I want them, I just can't seem to get the
> mouse
> > to work.  I've tried almost every option via `dpkg-reconfigure
> > xserver-xfree86`, but no luck.  I rebooted into HP-UX and the mouse does
> > work there, so it isn't a hardware problem.  HP-UX sees the mouse as
> "8/12/7
> > Built-in Keyboard/Mouse ps2 ".  Hopefully some of the information below
> will
> > show the error of my ways.  Any help would be greatly appreciated!!!!
> > 
> > /etc/X11/XF86Config-4:
> > 
> > Section "InputDevice"
> > 
> >         Identifier      "Configured Mouse"
> > 
> >         Driver          "mouse"
> > 
> >         Option          "CorePointer"
> > 
> >         Option          "Device"                "/dev/psaux"
> > 
> >         Option          "Protocol"              "PS/2"
> > 
> >         Option          "Emulate3Buttons"       "true"
> > 
> >         Option          "ZAxisMapping"          "4 5"
> > 
> > EndSection
> > 
> >  
> > 
> > ll /dev/psaux
> > 
> > crw-rw----  1 root root 10, 1 Jan 22 15:30 /dev/psaux
> > 
> >  
> > 
> >  
> > 
> > End of XFree86.0.log
> > 
> >  
> > 
> > (II) Keyboard "Generic Keyboard" handled by legacy driver
> > 
> > (**) Option "Protocol" "PS/2"
> > 
> > (**) Configured Mouse: Protocol: "PS/2"
> > 
> > (**) Option "CorePointer"
> > 
> > (**) Configured Mouse: Core Pointer
> > 
> > (**) Option "Device" "/dev/psaux"
> > 
> > (**) Option "Emulate3Buttons" "true"
> > 
> > (**) Configured Mouse: Emulate3Buttons, Emulate3Timeout: 50
> > 
> > (**) Option "ZAxisMapping" "4 5"
> > 
> > (**) Configured Mouse: ZAxisMapping: buttons 4 and 5
> > 
> > (**) Configured Mouse: Buttons: 5
> > 
> > (II) XINPUT: Adding extended input device "Configured Mouse" (type:
MOUSE)
> > 
> > (II) Configured Mouse: ps2EnableDataReporting: succeeded
> > 
> > Could not init font path element unix/:7100, removing from list!
> > 
> > AUDIT: Sun Jan 22 16:09:07 2006: 3943 X: client 4 rejected from local
host
> > 
> >  
> > 
> >  
> > 
> > howlin:/boot# grep -i mouse config-2.6.8-2-32-smp
> > 
> > CONFIG_INPUT_MOUSEDEV=y
> > 
> > CONFIG_INPUT_MOUSEDEV_PSAUX=y
> > 
> > CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
> > 
> > CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
> > 
> > CONFIG_INPUT_MOUSEDEV_PSAUX_ENABLE=y
> > 
> > CONFIG_INPUT_MOUSE=y
> > 
> > CONFIG_MOUSE_PS2=m
> > 
> > CONFIG_MOUSE_SERIAL=m
> > 
> > CONFIG_MOUSE_INPORT=m
> > 
> > # CONFIG_MOUSE_ATIXL is not set
> > 
> > CONFIG_MOUSE_LOGIBM=m
> > 
> > CONFIG_MOUSE_PC110PAD=m
> > 
> > CONFIG_MOUSE_VSXXXAA=m
> > 
> > CONFIG_MOUSE_HIL=m
> > 
> > CONFIG_USB_MOUSE=m
> > 
> >  
> > 
> >  
> > 
> > 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] kernel install.sh patch/enhancement?
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--_=__=_XaM3_.1138031620.2A.356503.42.6427.52.42.007.1649910115
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable

Hello pa*,

Just some small hunck to (I hope) improve our kernel install.sh.

1/ align on the other arch:
--- arch/parisc/install.sh.Orig 2006-01-23 14:18:28.000000000 +0100
+++ arch/parisc/install.sh      2006-01-23 14:26:48.000000000 +0100
@@ -19,10 +19,28 @@
 #   $4 - default install path (blank if root directory)
 #
 
+verify () {
+       if [ ! -f "$1" ]; then
+               echo ""                                                  =
 1>&2
+               echo " *** Missing file: $1"                             =
 1>&2
+               echo ' *** You need to run "make" before "make install".'=
 1>&2
+               echo ""                                                  =
 1>&2
+               exit 1
+       fi
+}
+
+# Make sure the files actually exist
+verify "$2"
+verify "$3"
+
 # User may have a custom install script
 
-if [ -x ~/bin/installkernel ]; then exec ~/bin/installkernel "$@"; fi
-if [ -x /sbin/installkernel ]; then exec /sbin/installkernel "$@"; fi
+if [ -x ~/bin/${CROSS_COMPILE}installkernel ]; then
+       exec ~/bin/${CROSS_COMPILE}installkernel "$@"
+fi
+if [ -x /sbin/${CROSS_COMPILE}installkernel ]; then
+       exec /sbin/${CROSS_COMPILE}installkernel "$@"
+fi
 
 # Default install
 
=3D=3D=3D=3D<>=3D=3D=3D=3D

2/ append kernel version to filename (as many other arch too):
--- arch/parisc/install.sh.Orig 2006-01-23 14:30:17.000000000 +0100
+++ arch/parisc/install.sh      2006-01-23 15:30:30.000000000 +0100
@@ -19,6 +19,8 @@
 #   $4 - default install path (blank if root directory)
 #
 
+KCONF=3D".config"
+
 verify () {
        if [ ! -f "$1" ]; then
                echo ""                                                  =
 1>&2
@@ -32,6 +34,7 @@
 # Make sure the files actually exist
 verify "$2"
 verify "$3"
+verify "$KCONF"
 
 # User may have a custom install script
 
@@ -44,13 +47,18 @@
 
 # Default install
 
-if [ -f $4/vmlinux ]; then
-       mv $4/vmlinux $4/vmlinux.old
+if [ -f $4/vmlinux-$1 ]; then
+       mv $4/vmlinux-$1 $4/vmlinux.old
+fi
+
+if [ -f $4/System.map-$1 ]; then
+       mv $4/System.map-$1 $4/System.old
 fi
 
-if [ -f $4/System.map ]; then
-       mv $4/System.map $4/System.old
+if [ -f $4/config-$1 ]; then
+       mv $4/config-$1 $4/config.old
 fi
 
-cat $2 > $4/vmlinux
-cp $3 $4/System.map
+cat $2 > $4/vmlinux-$1
+cp $3 $4/System.map-$1
+cp .config $4/config-$1

3/ my paranoid check (because by /boot is a fs usualy mounted in ro, as I=

presume most of sysadm ;-?) 
--- arch/parisc/install.sh.Orig 2006-01-23 15:32:42.000000000 +0100
+++ arch/parisc/install.sh      2006-01-23 15:57:24.000000000 +0100
@@ -19,6 +19,26 @@
 #   $4 - default install path (blank if root directory)
 #
 
+# Verify default install path
+if [ -d $4 ]; then
+       cat /dev/null > $4/banner
+       RC=3D$?
+       if [ $RC -ne 0 ]; then
+               echo ""                                         1>&2
+               echo " *** Verify your access to $4"            1>&2
+               echo ""                                         1>&2
+               exit 1
+       else
+               rm -f $4/banner
+       fi
+else
+       echo ""                                                 1>&2
+       echo " *** Missing directory: $1"                       1>&2
+       echo ' *** You need to run "make -p $4" before.'        1>&2
+       echo ""                                                 1>&2
+       exit 1
+fi
+
 KCONF=3D".config"
 
 verify () {
@@ -62,3 +82,13 @@
 cat $2 > $4/vmlinux-$1
 cp $3 $4/System.map-$1
 cp .config $4/config-$1
+
+if [ -h $4/vmlinux ]; then
+       mv $4/vmlinux $4/vmlinux.prev
+       ln -sf $4/vmlinux-$1 $4/vmlinux
+fi
+
+if [ -h $4/System.map ]; then
+       mv $4/System.map $4/System.prev
+       ln -sf $4/System.map-$1 $4/System.map
+fi
=3D=3D=3D=3D<>=3D=3D=3D=3D

Don't hesistate to ci the stuff you fill of best interest (no cvs ci acce=
ss).

TIA,
    Joel
 
PS: also attached those 3 hunk because quiet sure of bad wraping, though.=
=0A=0A---------------------------------------------------------------=0AA=
 free anti-spam and anti-virus filter on all Scarlet mailboxes=0AMore inf=
o on http://www.scarlet.be/
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_______________________________________________
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parisc-linux@lists.parisc-linux.org
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From: "Dmitry" <dpavlushko@hotmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] bugreport kernels 2.6.15.1-pa4, 2.6.16-rc1-pa(1-2)
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Xref: news.gmane.org gmane.linux.ports.parisc:23404

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Sorry if I sent it several times.

I've experienced following problems:

1. 64bit kernel hangs on C360 (model 9000/785/C360).
 Exactly the same configuration but 32 bit version boots very well.
 Sorry no HPMC report (need null modem)
 It's look like 64bit hanging on buses/IO scan (not sure).

 2. 2.6.16-rc1-pa(1-2) 32bit version NFS server has problem too (client side
 mount failed -
 nfs_fhget: iget failed).

 3. kernel 2.6.15.1-pa4 (gentoo) needs irqpoll when I installed PCI USB
 (ALi)controller.
 Without "irqpoll" syslog full of this : Dino 0xf2000000: stuck interrupt 1

 4. SCSI sym-2 issue
 kernel 2.6.15.1-pa4
    dmesg shows:
    scsi0 : sym-2.2.2
    ....
    target0:0:3: FAST-20 SCSI 20.0 MB/s ST (50 ns, offset 16)

 when I boot from livecd (2.6.12)
    dmesg shows:
    scsi0 : sym-2.2.0
    ....
    target0:0:3: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 16)

 HDD speed differences about 20%


 I'm using cross compiler gnu-3.4.5 and binutils 2.16.1-r1

 Thanks
Dmitry

P.S. LiveCD kernel 2.6.12 64bit boots ok


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# Automatically generated make config: don't edit=0A=
# Linux kernel version: 2.6.16-rc1-pa2=0A=
# Sun Jan 22 00:57:22 2006=0A=
#=0A=
CONFIG_PARISC=3Dy=0A=
CONFIG_MMU=3Dy=0A=
CONFIG_STACK_GROWSUP=3Dy=0A=
CONFIG_RWSEM_GENERIC_SPINLOCK=3Dy=0A=
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=0A=
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# Code maturity level options=0A=
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CONFIG_CLEAN_COMPILE=3Dy=0A=
CONFIG_BROKEN_ON_SMP=3Dy=0A=
CONFIG_INIT_ENV_ARG_LIMIT=3D32=0A=
=0A=
#=0A=
# General setup=0A=
#=0A=
CONFIG_LOCALVERSION=3D"-32"=0A=
# CONFIG_LOCALVERSION_AUTO is not set=0A=
CONFIG_SWAP=3Dy=0A=
CONFIG_SYSVIPC=3Dy=0A=
CONFIG_POSIX_MQUEUE=3Dy=0A=
# CONFIG_BSD_PROCESS_ACCT is not set=0A=
CONFIG_SYSCTL=3Dy=0A=
# CONFIG_AUDIT is not set=0A=
CONFIG_IKCONFIG=3Dy=0A=
CONFIG_IKCONFIG_PROC=3Dy=0A=
CONFIG_INITRAMFS_SOURCE=3D""=0A=
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set=0A=
# CONFIG_EMBEDDED is not set=0A=
CONFIG_KALLSYMS=3Dy=0A=
# CONFIG_KALLSYMS_EXTRA_PASS is not set=0A=
CONFIG_HOTPLUG=3Dy=0A=
CONFIG_PRINTK=3Dy=0A=
CONFIG_BUG=3Dy=0A=
CONFIG_ELF_CORE=3Dy=0A=
CONFIG_BASE_FULL=3Dy=0A=
CONFIG_FUTEX=3Dy=0A=
CONFIG_EPOLL=3Dy=0A=
CONFIG_SHMEM=3Dy=0A=
CONFIG_CC_ALIGN_FUNCTIONS=3D0=0A=
CONFIG_CC_ALIGN_LABELS=3D0=0A=
CONFIG_CC_ALIGN_LOOPS=3D0=0A=
CONFIG_CC_ALIGN_JUMPS=3D0=0A=
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# CONFIG_TINY_SHMEM is not set=0A=
CONFIG_BASE_SMALL=3D0=0A=
# CONFIG_SLOB is not set=0A=
=0A=
#=0A=
# Loadable module support=0A=
#=0A=
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CONFIG_MODULE_UNLOAD=3Dy=0A=
# CONFIG_MODULE_FORCE_UNLOAD is not set=0A=
CONFIG_OBSOLETE_MODPARM=3Dy=0A=
# CONFIG_MODVERSIONS is not set=0A=
# CONFIG_MODULE_SRCVERSION_ALL is not set=0A=
CONFIG_KMOD=3Dy=0A=
=0A=
#=0A=
# Block layer=0A=
#=0A=
=0A=
#=0A=
# IO Schedulers=0A=
#=0A=
CONFIG_IOSCHED_NOOP=3Dy=0A=
CONFIG_IOSCHED_AS=3Dy=0A=
CONFIG_IOSCHED_DEADLINE=3Dy=0A=
CONFIG_IOSCHED_CFQ=3Dy=0A=
CONFIG_DEFAULT_AS=3Dy=0A=
# CONFIG_DEFAULT_DEADLINE is not set=0A=
# CONFIG_DEFAULT_CFQ is not set=0A=
# CONFIG_DEFAULT_NOOP is not set=0A=
CONFIG_DEFAULT_IOSCHED=3D"anticipatory"=0A=
=0A=
#=0A=
# Processor type and features=0A=
#=0A=
# CONFIG_PA7000 is not set=0A=
# CONFIG_PA7100LC is not set=0A=
# CONFIG_PA7200 is not set=0A=
# CONFIG_PA7300LC is not set=0A=
CONFIG_PA8X00=3Dy=0A=
CONFIG_PA20=3Dy=0A=
CONFIG_PREFETCH=3Dy=0A=
# CONFIG_64BIT is not set=0A=
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# CONFIG_HZ_100 is not set=0A=
CONFIG_HZ_250=3Dy=0A=
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CONFIG_HZ=3D250=0A=
CONFIG_SELECT_MEMORY_MODEL=3Dy=0A=
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CONFIG_FLAT_NODE_MEM_MAP=3Dy=0A=
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# CONFIG_HPUX is not set=0A=
=0A=
#=0A=
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)=0A=
#=0A=
CONFIG_GSC=3Dy=0A=
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CONFIG_GSC_WAX=3Dy=0A=
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CONFIG_PCI_LEGACY_PROC=3Dy=0A=
CONFIG_GSC_DINO=3Dy=0A=
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=0A=
#=0A=
# PCCARD (PCMCIA/CardBus) support=0A=
#=0A=
# CONFIG_PCCARD is not set=0A=
=0A=
#=0A=
# PCI Hotplug Support=0A=
#=0A=
# CONFIG_HOTPLUG_PCI is not set=0A=
=0A=
#=0A=
# PA-RISC specific drivers=0A=
#=0A=
# CONFIG_SUPERIO is not set=0A=
CONFIG_CHASSIS_LCD_LED=3Dy=0A=
# CONFIG_PDC_CHASSIS is not set=0A=
CONFIG_PDC_STABLE=3Dy=0A=
=0A=
#=0A=
# Executable file formats=0A=
#=0A=
CONFIG_BINFMT_ELF=3Dy=0A=
# CONFIG_BINFMT_MISC is not set=0A=
=0A=
#=0A=
# Networking=0A=
#=0A=
CONFIG_NET=3Dy=0A=
=0A=
#=0A=
# Networking options=0A=
#=0A=
CONFIG_PACKET=3Dy=0A=
CONFIG_PACKET_MMAP=3Dy=0A=
CONFIG_UNIX=3Dy=0A=
# CONFIG_NET_KEY is not set=0A=
CONFIG_INET=3Dy=0A=
# CONFIG_IP_MULTICAST is not set=0A=
# CONFIG_IP_ADVANCED_ROUTER is not set=0A=
CONFIG_IP_FIB_HASH=3Dy=0A=
# CONFIG_IP_PNP is not set=0A=
# CONFIG_NET_IPIP is not set=0A=
# CONFIG_NET_IPGRE is not set=0A=
# CONFIG_ARPD is not set=0A=
# CONFIG_SYN_COOKIES is not set=0A=
# CONFIG_INET_AH is not set=0A=
# CONFIG_INET_ESP is not set=0A=
# CONFIG_INET_IPCOMP is not set=0A=
# CONFIG_INET_TUNNEL is not set=0A=
# CONFIG_INET_DIAG is not set=0A=
# CONFIG_TCP_CONG_ADVANCED is not set=0A=
CONFIG_TCP_CONG_BIC=3Dy=0A=
# CONFIG_IPV6 is not set=0A=
# CONFIG_NETFILTER is not set=0A=
=0A=
#=0A=
# DCCP Configuration (EXPERIMENTAL)=0A=
#=0A=
# CONFIG_IP_DCCP is not set=0A=
=0A=
#=0A=
# SCTP Configuration (EXPERIMENTAL)=0A=
#=0A=
# CONFIG_IP_SCTP is not set=0A=
# CONFIG_ATM is not set=0A=
# CONFIG_BRIDGE is not set=0A=
# CONFIG_VLAN_8021Q is not set=0A=
# CONFIG_DECNET is not set=0A=
# CONFIG_LLC2 is not set=0A=
# CONFIG_IPX is not set=0A=
# CONFIG_ATALK is not set=0A=
# CONFIG_X25 is not set=0A=
# CONFIG_LAPB is not set=0A=
=0A=
#=0A=
# TIPC Configuration (EXPERIMENTAL)=0A=
#=0A=
# CONFIG_TIPC is not set=0A=
# CONFIG_NET_DIVERT is not set=0A=
# CONFIG_ECONET is not set=0A=
# CONFIG_WAN_ROUTER is not set=0A=
=0A=
#=0A=
# QoS and/or fair queueing=0A=
#=0A=
# CONFIG_NET_SCHED is not set=0A=
=0A=
#=0A=
# Network testing=0A=
#=0A=
# CONFIG_NET_PKTGEN is not set=0A=
# CONFIG_HAMRADIO is not set=0A=
# CONFIG_IRDA is not set=0A=
# CONFIG_BT is not set=0A=
# CONFIG_IEEE80211 is not set=0A=
=0A=
#=0A=
# Device Drivers=0A=
#=0A=
=0A=
#=0A=
# Generic Driver Options=0A=
#=0A=
# CONFIG_STANDALONE is not set=0A=
# CONFIG_PREVENT_FIRMWARE_BUILD is not set=0A=
CONFIG_FW_LOADER=3Dy=0A=
=0A=
#=0A=
# Connector - unified userspace <-> kernelspace linker=0A=
#=0A=
# CONFIG_CONNECTOR is not set=0A=
=0A=
#=0A=
# Memory Technology Devices (MTD)=0A=
#=0A=
# CONFIG_MTD is not set=0A=
=0A=
#=0A=
# Parallel port support=0A=
#=0A=
CONFIG_PARPORT=3Dm=0A=
# CONFIG_PARPORT_PC is not set=0A=
CONFIG_PARPORT_NOT_PC=3Dy=0A=
CONFIG_PARPORT_GSC=3Dy=0A=
# CONFIG_PARPORT_1284 is not set=0A=
=0A=
#=0A=
# Plug and Play support=0A=
#=0A=
=0A=
#=0A=
# Block devices=0A=
#=0A=
# CONFIG_BLK_CPQ_DA is not set=0A=
# CONFIG_BLK_CPQ_CISS_DA is not set=0A=
# CONFIG_BLK_DEV_DAC960 is not set=0A=
# CONFIG_BLK_DEV_UMEM is not set=0A=
# CONFIG_BLK_DEV_COW_COMMON is not set=0A=
CONFIG_BLK_DEV_LOOP=3Dm=0A=
# CONFIG_BLK_DEV_CRYPTOLOOP is not set=0A=
# CONFIG_BLK_DEV_NBD is not set=0A=
# CONFIG_BLK_DEV_SX8 is not set=0A=
# CONFIG_BLK_DEV_UB is not set=0A=
CONFIG_BLK_DEV_RAM=3Dm=0A=
CONFIG_BLK_DEV_RAM_COUNT=3D16=0A=
CONFIG_BLK_DEV_RAM_SIZE=3D4096=0A=
# CONFIG_CDROM_PKTCDVD is not set=0A=
# CONFIG_ATA_OVER_ETH is not set=0A=
=0A=
#=0A=
# ATA/ATAPI/MFM/RLL support=0A=
#=0A=
# CONFIG_IDE is not set=0A=
=0A=
#=0A=
# SCSI device support=0A=
#=0A=
# CONFIG_RAID_ATTRS is not set=0A=
CONFIG_SCSI=3Dy=0A=
CONFIG_SCSI_PROC_FS=3Dy=0A=
=0A=
#=0A=
# SCSI support type (disk, tape, CD-ROM)=0A=
#=0A=
CONFIG_BLK_DEV_SD=3Dy=0A=
CONFIG_CHR_DEV_ST=3Dy=0A=
# CONFIG_CHR_DEV_OSST is not set=0A=
CONFIG_BLK_DEV_SR=3Dy=0A=
# CONFIG_BLK_DEV_SR_VENDOR is not set=0A=
CONFIG_CHR_DEV_SG=3Dy=0A=
# CONFIG_CHR_DEV_SCH is not set=0A=
=0A=
#=0A=
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs=0A=
#=0A=
# CONFIG_SCSI_MULTI_LUN is not set=0A=
CONFIG_SCSI_CONSTANTS=3Dy=0A=
# CONFIG_SCSI_LOGGING is not set=0A=
=0A=
#=0A=
# SCSI Transport Attributes=0A=
#=0A=
CONFIG_SCSI_SPI_ATTRS=3Dy=0A=
# CONFIG_SCSI_FC_ATTRS is not set=0A=
# CONFIG_SCSI_ISCSI_ATTRS is not set=0A=
# CONFIG_SCSI_SAS_ATTRS is not set=0A=
=0A=
#=0A=
# SCSI low-level drivers=0A=
#=0A=
# CONFIG_ISCSI_TCP is not set=0A=
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set=0A=
# CONFIG_SCSI_3W_9XXX is not set=0A=
# CONFIG_SCSI_ACARD is not set=0A=
# CONFIG_SCSI_AACRAID is not set=0A=
# CONFIG_SCSI_AIC7XXX is not set=0A=
# CONFIG_SCSI_AIC7XXX_OLD is not set=0A=
# CONFIG_SCSI_AIC79XX is not set=0A=
# CONFIG_SCSI_DPT_I2O is not set=0A=
# CONFIG_MEGARAID_NEWGEN is not set=0A=
# CONFIG_MEGARAID_LEGACY is not set=0A=
# CONFIG_MEGARAID_SAS is not set=0A=
# CONFIG_SCSI_SATA is not set=0A=
# CONFIG_SCSI_DMX3191D is not set=0A=
# CONFIG_SCSI_FUTURE_DOMAIN is not set=0A=
# CONFIG_SCSI_IPS is not set=0A=
# CONFIG_SCSI_INITIO is not set=0A=
# CONFIG_SCSI_INIA100 is not set=0A=
CONFIG_SCSI_LASI700=3Dy=0A=
CONFIG_53C700_LE_ON_BE=3Dy=0A=
CONFIG_SCSI_SYM53C8XX_2=3Dy=0A=
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=3D0=0A=
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=3D16=0A=
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=3D64=0A=
CONFIG_SCSI_SYM53C8XX_MMIO=3Dy=0A=
# CONFIG_SCSI_IPR is not set=0A=
# CONFIG_SCSI_ZALON is not set=0A=
# CONFIG_SCSI_QLOGIC_FC is not set=0A=
# CONFIG_SCSI_QLOGIC_1280 is not set=0A=
# CONFIG_SCSI_QLA_FC is not set=0A=
# CONFIG_SCSI_LPFC is not set=0A=
# CONFIG_SCSI_DC395x is not set=0A=
# CONFIG_SCSI_DC390T is not set=0A=
# CONFIG_SCSI_NSP32 is not set=0A=
# CONFIG_SCSI_DEBUG is not set=0A=
=0A=
#=0A=
# Multi-device support (RAID and LVM)=0A=
#=0A=
# CONFIG_MD is not set=0A=
=0A=
#=0A=
# Fusion MPT device support=0A=
#=0A=
# CONFIG_FUSION is not set=0A=
# CONFIG_FUSION_SPI is not set=0A=
# CONFIG_FUSION_FC is not set=0A=
# CONFIG_FUSION_SAS is not set=0A=
=0A=
#=0A=
# IEEE 1394 (FireWire) support=0A=
#=0A=
# CONFIG_IEEE1394 is not set=0A=
=0A=
#=0A=
# I2O device support=0A=
#=0A=
# CONFIG_I2O is not set=0A=
=0A=
#=0A=
# Network device support=0A=
#=0A=
CONFIG_NETDEVICES=3Dy=0A=
# CONFIG_DUMMY is not set=0A=
# CONFIG_BONDING is not set=0A=
# CONFIG_EQUALIZER is not set=0A=
# CONFIG_TUN is not set=0A=
=0A=
#=0A=
# ARCnet devices=0A=
#=0A=
# CONFIG_ARCNET is not set=0A=
=0A=
#=0A=
# PHY device support=0A=
#=0A=
# CONFIG_PHYLIB is not set=0A=
=0A=
#=0A=
# Ethernet (10 or 100Mbit)=0A=
#=0A=
CONFIG_NET_ETHERNET=3Dy=0A=
# CONFIG_MII is not set=0A=
# CONFIG_LASI_82596 is not set=0A=
# CONFIG_HAPPYMEAL is not set=0A=
# CONFIG_SUNGEM is not set=0A=
# CONFIG_CASSINI is not set=0A=
# CONFIG_NET_VENDOR_3COM is not set=0A=
=0A=
#=0A=
# Tulip family network device support=0A=
#=0A=
CONFIG_NET_TULIP=3Dy=0A=
# CONFIG_DE2104X is not set=0A=
CONFIG_TULIP=3Dm=0A=
CONFIG_TULIP_MWI=3Dy=0A=
# CONFIG_TULIP_MMIO is not set=0A=
# CONFIG_TULIP_NAPI is not set=0A=
# CONFIG_DE4X5 is not set=0A=
# CONFIG_WINBOND_840 is not set=0A=
# CONFIG_DM9102 is not set=0A=
# CONFIG_ULI526X is not set=0A=
# CONFIG_HP100 is not set=0A=
# CONFIG_NET_PCI is not set=0A=
# CONFIG_NET_POCKET is not set=0A=
=0A=
#=0A=
# Ethernet (1000 Mbit)=0A=
#=0A=
# CONFIG_ACENIC is not set=0A=
# CONFIG_DL2K is not set=0A=
# CONFIG_E1000 is not set=0A=
# CONFIG_NS83820 is not set=0A=
# CONFIG_HAMACHI is not set=0A=
# CONFIG_YELLOWFIN is not set=0A=
# CONFIG_R8169 is not set=0A=
# CONFIG_SIS190 is not set=0A=
# CONFIG_SKGE is not set=0A=
# CONFIG_SKY2 is not set=0A=
# CONFIG_SK98LIN is not set=0A=
# CONFIG_TIGON3 is not set=0A=
# CONFIG_BNX2 is not set=0A=
=0A=
#=0A=
# Ethernet (10000 Mbit)=0A=
#=0A=
# CONFIG_CHELSIO_T1 is not set=0A=
# CONFIG_IXGB is not set=0A=
# CONFIG_S2IO is not set=0A=
=0A=
#=0A=
# Token Ring devices=0A=
#=0A=
# CONFIG_TR is not set=0A=
=0A=
#=0A=
# Wireless LAN (non-hamradio)=0A=
#=0A=
# CONFIG_NET_RADIO is not set=0A=
=0A=
#=0A=
# Wan interfaces=0A=
#=0A=
# CONFIG_WAN is not set=0A=
# CONFIG_FDDI is not set=0A=
# CONFIG_HIPPI is not set=0A=
# CONFIG_PLIP is not set=0A=
# CONFIG_PPP is not set=0A=
# CONFIG_SLIP is not set=0A=
# CONFIG_NET_FC is not set=0A=
# CONFIG_SHAPER is not set=0A=
# CONFIG_NETCONSOLE is not set=0A=
# CONFIG_NETPOLL is not set=0A=
# CONFIG_NET_POLL_CONTROLLER is not set=0A=
=0A=
#=0A=
# ISDN subsystem=0A=
#=0A=
# CONFIG_ISDN is not set=0A=
=0A=
#=0A=
# Telephony Support=0A=
#=0A=
# CONFIG_PHONE is not set=0A=
=0A=
#=0A=
# Input device support=0A=
#=0A=
CONFIG_INPUT=3Dy=0A=
=0A=
#=0A=
# Userland interfaces=0A=
#=0A=
CONFIG_INPUT_MOUSEDEV=3Dy=0A=
CONFIG_INPUT_MOUSEDEV_PSAUX=3Dy=0A=
CONFIG_INPUT_MOUSEDEV_SCREEN_X=3D1024=0A=
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=3D768=0A=
# CONFIG_INPUT_JOYDEV is not set=0A=
# CONFIG_INPUT_TSDEV is not set=0A=
CONFIG_INPUT_EVDEV=3Dy=0A=
# CONFIG_INPUT_EVBUG is not set=0A=
=0A=
#=0A=
# Input Device Drivers=0A=
#=0A=
CONFIG_INPUT_KEYBOARD=3Dy=0A=
CONFIG_KEYBOARD_ATKBD=3Dy=0A=
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=3Dy=0A=
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set=0A=
# CONFIG_KEYBOARD_SUNKBD is not set=0A=
# CONFIG_KEYBOARD_LKKBD is not set=0A=
# CONFIG_KEYBOARD_XTKBD is not set=0A=
# CONFIG_KEYBOARD_NEWTON is not set=0A=
# CONFIG_KEYBOARD_HIL_OLD is not set=0A=
# CONFIG_KEYBOARD_HIL is not set=0A=
CONFIG_INPUT_MOUSE=3Dy=0A=
# CONFIG_MOUSE_PS2 is not set=0A=
# CONFIG_MOUSE_SERIAL is not set=0A=
# CONFIG_MOUSE_VSXXXAA is not set=0A=
# CONFIG_MOUSE_HIL is not set=0A=
# CONFIG_INPUT_JOYSTICK is not set=0A=
CONFIG_INPUT_TOUCHSCREEN=3Dy=0A=
# CONFIG_TOUCHSCREEN_GUNZE is not set=0A=
# CONFIG_TOUCHSCREEN_ELO is not set=0A=
# CONFIG_TOUCHSCREEN_MTOUCH is not set=0A=
# CONFIG_TOUCHSCREEN_MK712 is not set=0A=
# CONFIG_INPUT_MISC is not set=0A=
=0A=
#=0A=
# Hardware I/O ports=0A=
#=0A=
CONFIG_SERIO=3Dy=0A=
# CONFIG_SERIO_SERPORT is not set=0A=
# CONFIG_SERIO_PARKBD is not set=0A=
CONFIG_SERIO_GSCPS2=3Dy=0A=
# CONFIG_HP_SDC is not set=0A=
# CONFIG_SERIO_PCIPS2 is not set=0A=
CONFIG_SERIO_LIBPS2=3Dy=0A=
# CONFIG_SERIO_RAW is not set=0A=
# CONFIG_GAMEPORT is not set=0A=
=0A=
#=0A=
# Character devices=0A=
#=0A=
CONFIG_VT=3Dy=0A=
CONFIG_VT_CONSOLE=3Dy=0A=
CONFIG_HW_CONSOLE=3Dy=0A=
# CONFIG_SERIAL_NONSTANDARD is not set=0A=
=0A=
#=0A=
# Serial drivers=0A=
#=0A=
# CONFIG_SERIAL_8250 is not set=0A=
=0A=
#=0A=
# Non-8250 serial port support=0A=
#=0A=
# CONFIG_SERIAL_MUX is not set=0A=
# CONFIG_PDC_CONSOLE is not set=0A=
CONFIG_UNIX98_PTYS=3Dy=0A=
CONFIG_LEGACY_PTYS=3Dy=0A=
CONFIG_LEGACY_PTY_COUNT=3D256=0A=
CONFIG_PRINTER=3Dm=0A=
# CONFIG_LP_CONSOLE is not set=0A=
# CONFIG_PPDEV is not set=0A=
# CONFIG_TIPAR is not set=0A=
=0A=
#=0A=
# IPMI=0A=
#=0A=
# CONFIG_IPMI_HANDLER is not set=0A=
=0A=
#=0A=
# Watchdog Cards=0A=
#=0A=
CONFIG_WATCHDOG=3Dy=0A=
# CONFIG_WATCHDOG_NOWAYOUT is not set=0A=
=0A=
#=0A=
# Watchdog Device Drivers=0A=
#=0A=
# CONFIG_SOFT_WATCHDOG is not set=0A=
=0A=
#=0A=
# PCI-based Watchdog Cards=0A=
#=0A=
# CONFIG_PCIPCWATCHDOG is not set=0A=
# CONFIG_WDTPCI is not set=0A=
=0A=
#=0A=
# USB-based Watchdog Cards=0A=
#=0A=
# CONFIG_USBPCWATCHDOG is not set=0A=
CONFIG_GEN_RTC=3Dy=0A=
CONFIG_GEN_RTC_X=3Dy=0A=
# CONFIG_DTLK is not set=0A=
# CONFIG_R3964 is not set=0A=
# CONFIG_APPLICOM is not set=0A=
=0A=
#=0A=
# Ftape, the floppy tape device driver=0A=
#=0A=
# CONFIG_DRM is not set=0A=
# CONFIG_RAW_DRIVER is not set=0A=
=0A=
#=0A=
# TPM devices=0A=
#=0A=
# CONFIG_TCG_TPM is not set=0A=
# CONFIG_TELCLOCK is not set=0A=
=0A=
#=0A=
# I2C support=0A=
#=0A=
# CONFIG_I2C is not set=0A=
=0A=
#=0A=
# SPI support=0A=
#=0A=
# CONFIG_SPI is not set=0A=
# CONFIG_SPI_MASTER is not set=0A=
=0A=
#=0A=
# Dallas's 1-wire bus=0A=
#=0A=
# CONFIG_W1 is not set=0A=
=0A=
#=0A=
# Hardware Monitoring support=0A=
#=0A=
CONFIG_HWMON=3Dy=0A=
# CONFIG_HWMON_VID is not set=0A=
# CONFIG_HWMON_DEBUG_CHIP is not set=0A=
=0A=
#=0A=
# Misc devices=0A=
#=0A=
=0A=
#=0A=
# Multimedia Capabilities Port drivers=0A=
#=0A=
=0A=
#=0A=
# Multimedia devices=0A=
#=0A=
# CONFIG_VIDEO_DEV is not set=0A=
=0A=
#=0A=
# Digital Video Broadcasting Devices=0A=
#=0A=
# CONFIG_DVB is not set=0A=
=0A=
#=0A=
# Graphics support=0A=
#=0A=
CONFIG_FB=3Dy=0A=
CONFIG_FB_CFB_FILLRECT=3Dy=0A=
CONFIG_FB_CFB_COPYAREA=3Dy=0A=
CONFIG_FB_CFB_IMAGEBLIT=3Dy=0A=
# CONFIG_FB_MACMODES is not set=0A=
# CONFIG_FB_MODE_HELPERS is not set=0A=
# CONFIG_FB_TILEBLITTING is not set=0A=
# CONFIG_FB_CIRRUS is not set=0A=
# CONFIG_FB_PM2 is not set=0A=
# CONFIG_FB_CYBER2000 is not set=0A=
# CONFIG_FB_ASILIANT is not set=0A=
# CONFIG_FB_IMSTT is not set=0A=
CONFIG_FB_STI=3Dy=0A=
# CONFIG_FB_S1D13XXX is not set=0A=
# CONFIG_FB_NVIDIA is not set=0A=
# CONFIG_FB_RIVA is not set=0A=
# CONFIG_FB_MATROX is not set=0A=
# CONFIG_FB_RADEON_OLD is not set=0A=
# CONFIG_FB_RADEON is not set=0A=
# CONFIG_FB_ATY128 is not set=0A=
# CONFIG_FB_ATY is not set=0A=
# CONFIG_FB_SAVAGE is not set=0A=
# CONFIG_FB_SIS is not set=0A=
# CONFIG_FB_NEOMAGIC is not set=0A=
# CONFIG_FB_KYRO is not set=0A=
# CONFIG_FB_3DFX is not set=0A=
# CONFIG_FB_VOODOO1 is not set=0A=
# CONFIG_FB_TRIDENT is not set=0A=
# CONFIG_FB_VIRTUAL is not set=0A=
=0A=
#=0A=
# Console display driver support=0A=
#=0A=
CONFIG_DUMMY_CONSOLE=3Dy=0A=
CONFIG_DUMMY_CONSOLE_COLUMNS=3D160=0A=
CONFIG_DUMMY_CONSOLE_ROWS=3D64=0A=
CONFIG_FRAMEBUFFER_CONSOLE=3Dy=0A=
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set=0A=
CONFIG_STI_CONSOLE=3Dy=0A=
CONFIG_FONTS=3Dy=0A=
# CONFIG_FONT_8x8 is not set=0A=
CONFIG_FONT_8x16=3Dy=0A=
# CONFIG_FONT_6x11 is not set=0A=
# CONFIG_FONT_7x14 is not set=0A=
# CONFIG_FONT_PEARL_8x8 is not set=0A=
# CONFIG_FONT_ACORN_8x8 is not set=0A=
# CONFIG_FONT_MINI_4x6 is not set=0A=
# CONFIG_FONT_SUN8x16 is not set=0A=
# CONFIG_FONT_SUN12x22 is not set=0A=
# CONFIG_FONT_10x18 is not set=0A=
=0A=
#=0A=
# Logo configuration=0A=
#=0A=
# CONFIG_LOGO is not set=0A=
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set=0A=
=0A=
#=0A=
# Sound=0A=
#=0A=
# CONFIG_SOUND is not set=0A=
=0A=
#=0A=
# USB support=0A=
#=0A=
CONFIG_USB_ARCH_HAS_HCD=3Dy=0A=
CONFIG_USB_ARCH_HAS_OHCI=3Dy=0A=
CONFIG_USB=3Dm=0A=
# CONFIG_USB_DEBUG is not set=0A=
=0A=
#=0A=
# Miscellaneous USB options=0A=
#=0A=
CONFIG_USB_DEVICEFS=3Dy=0A=
# CONFIG_USB_BANDWIDTH is not set=0A=
# CONFIG_USB_DYNAMIC_MINORS is not set=0A=
# CONFIG_USB_OTG is not set=0A=
=0A=
#=0A=
# USB Host Controller Drivers=0A=
#=0A=
CONFIG_USB_EHCI_HCD=3Dm=0A=
# CONFIG_USB_EHCI_SPLIT_ISO is not set=0A=
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set=0A=
# CONFIG_USB_ISP116X_HCD is not set=0A=
CONFIG_USB_OHCI_HCD=3Dm=0A=
# CONFIG_USB_OHCI_BIG_ENDIAN is not set=0A=
CONFIG_USB_OHCI_LITTLE_ENDIAN=3Dy=0A=
# CONFIG_USB_UHCI_HCD is not set=0A=
# CONFIG_USB_SL811_HCD is not set=0A=
=0A=
#=0A=
# USB Device Class drivers=0A=
#=0A=
# CONFIG_USB_ACM is not set=0A=
CONFIG_USB_PRINTER=3Dm=0A=
=0A=
#=0A=
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'=0A=
#=0A=
=0A=
#=0A=
# may also be needed; see USB_STORAGE Help for more information=0A=
#=0A=
CONFIG_USB_STORAGE=3Dm=0A=
CONFIG_USB_STORAGE_DEBUG=3Dy=0A=
# CONFIG_USB_STORAGE_DATAFAB is not set=0A=
# CONFIG_USB_STORAGE_FREECOM is not set=0A=
# CONFIG_USB_STORAGE_DPCM is not set=0A=
# CONFIG_USB_STORAGE_USBAT is not set=0A=
# CONFIG_USB_STORAGE_SDDR09 is not set=0A=
# CONFIG_USB_STORAGE_SDDR55 is not set=0A=
# CONFIG_USB_STORAGE_JUMPSHOT is not set=0A=
# CONFIG_USB_STORAGE_ALAUDA is not set=0A=
# CONFIG_USB_STORAGE_ONETOUCH is not set=0A=
# CONFIG_USB_LIBUSUAL is not set=0A=
=0A=
#=0A=
# USB Input Devices=0A=
#=0A=
CONFIG_USB_HID=3Dm=0A=
CONFIG_USB_HIDINPUT=3Dy=0A=
# CONFIG_USB_HIDINPUT_POWERBOOK is not set=0A=
# CONFIG_HID_FF is not set=0A=
# CONFIG_USB_HIDDEV is not set=0A=
=0A=
#=0A=
# USB HID Boot Protocol drivers=0A=
#=0A=
# CONFIG_USB_KBD is not set=0A=
# CONFIG_USB_MOUSE is not set=0A=
# CONFIG_USB_AIPTEK is not set=0A=
# CONFIG_USB_WACOM is not set=0A=
# CONFIG_USB_ACECAD is not set=0A=
# CONFIG_USB_KBTAB is not set=0A=
# CONFIG_USB_POWERMATE is not set=0A=
# CONFIG_USB_MTOUCH is not set=0A=
# CONFIG_USB_ITMTOUCH is not set=0A=
# CONFIG_USB_EGALAX is not set=0A=
# CONFIG_USB_YEALINK is not set=0A=
# CONFIG_USB_XPAD is not set=0A=
# CONFIG_USB_ATI_REMOTE is not set=0A=
# CONFIG_USB_ATI_REMOTE2 is not set=0A=
# CONFIG_USB_KEYSPAN_REMOTE is not set=0A=
# CONFIG_USB_APPLETOUCH is not set=0A=
=0A=
#=0A=
# USB Imaging devices=0A=
#=0A=
# CONFIG_USB_MDC800 is not set=0A=
# CONFIG_USB_MICROTEK is not set=0A=
=0A=
#=0A=
# USB Multimedia devices=0A=
#=0A=
# CONFIG_USB_DABUSB is not set=0A=
=0A=
#=0A=
# Video4Linux support is needed for USB Multimedia device support=0A=
#=0A=
=0A=
#=0A=
# USB Network Adapters=0A=
#=0A=
# CONFIG_USB_CATC is not set=0A=
# CONFIG_USB_KAWETH is not set=0A=
# CONFIG_USB_PEGASUS is not set=0A=
# CONFIG_USB_RTL8150 is not set=0A=
# CONFIG_USB_USBNET is not set=0A=
# CONFIG_USB_MON is not set=0A=
=0A=
#=0A=
# USB port drivers=0A=
#=0A=
# CONFIG_USB_USS720 is not set=0A=
=0A=
#=0A=
# USB Serial Converter support=0A=
#=0A=
# CONFIG_USB_SERIAL is not set=0A=
=0A=
#=0A=
# USB Miscellaneous drivers=0A=
#=0A=
# CONFIG_USB_EMI62 is not set=0A=
# CONFIG_USB_EMI26 is not set=0A=
# CONFIG_USB_AUERSWALD is not set=0A=
# CONFIG_USB_RIO500 is not set=0A=
# CONFIG_USB_LEGOTOWER is not set=0A=
# CONFIG_USB_LCD is not set=0A=
# CONFIG_USB_LED is not set=0A=
# CONFIG_USB_CYTHERM is not set=0A=
# CONFIG_USB_PHIDGETKIT is not set=0A=
# CONFIG_USB_PHIDGETSERVO is not set=0A=
# CONFIG_USB_IDMOUSE is not set=0A=
# CONFIG_USB_SISUSBVGA is not set=0A=
# CONFIG_USB_LD is not set=0A=
# CONFIG_USB_TEST is not set=0A=
=0A=
#=0A=
# USB DSL modem support=0A=
#=0A=
=0A=
#=0A=
# USB Gadget Support=0A=
#=0A=
# CONFIG_USB_GADGET is not set=0A=
=0A=
#=0A=
# MMC/SD Card support=0A=
#=0A=
# CONFIG_MMC is not set=0A=
=0A=
#=0A=
# InfiniBand support=0A=
#=0A=
# CONFIG_INFINIBAND is not set=0A=
=0A=
#=0A=
# SN Devices=0A=
#=0A=
=0A=
#=0A=
# File systems=0A=
#=0A=
# CONFIG_EXT2_FS is not set=0A=
CONFIG_EXT3_FS=3Dy=0A=
# CONFIG_EXT3_FS_XATTR is not set=0A=
CONFIG_JBD=3Dy=0A=
# CONFIG_JBD_DEBUG is not set=0A=
CONFIG_REISERFS_FS=3Dy=0A=
# CONFIG_REISERFS_CHECK is not set=0A=
# CONFIG_REISERFS_PROC_INFO is not set=0A=
# CONFIG_REISERFS_FS_XATTR is not set=0A=
# CONFIG_JFS_FS is not set=0A=
CONFIG_FS_POSIX_ACL=3Dy=0A=
# CONFIG_XFS_FS is not set=0A=
# CONFIG_OCFS2_FS is not set=0A=
# CONFIG_MINIX_FS is not set=0A=
# CONFIG_ROMFS_FS is not set=0A=
CONFIG_INOTIFY=3Dy=0A=
# CONFIG_QUOTA is not set=0A=
CONFIG_DNOTIFY=3Dy=0A=
# CONFIG_AUTOFS_FS is not set=0A=
# CONFIG_AUTOFS4_FS is not set=0A=
# CONFIG_FUSE_FS is not set=0A=
=0A=
#=0A=
# CD-ROM/DVD Filesystems=0A=
#=0A=
CONFIG_ISO9660_FS=3Dy=0A=
CONFIG_JOLIET=3Dy=0A=
# CONFIG_ZISOFS is not set=0A=
# CONFIG_UDF_FS is not set=0A=
=0A=
#=0A=
# DOS/FAT/NT Filesystems=0A=
#=0A=
# CONFIG_MSDOS_FS is not set=0A=
# CONFIG_VFAT_FS is not set=0A=
# CONFIG_NTFS_FS is not set=0A=
=0A=
#=0A=
# Pseudo filesystems=0A=
#=0A=
CONFIG_PROC_FS=3Dy=0A=
CONFIG_PROC_KCORE=3Dy=0A=
CONFIG_SYSFS=3Dy=0A=
CONFIG_TMPFS=3Dy=0A=
# CONFIG_HUGETLB_PAGE is not set=0A=
CONFIG_RAMFS=3Dy=0A=
# CONFIG_RELAYFS_FS is not set=0A=
# CONFIG_CONFIGFS_FS is not set=0A=
=0A=
#=0A=
# Miscellaneous filesystems=0A=
#=0A=
# CONFIG_ADFS_FS is not set=0A=
# CONFIG_AFFS_FS is not set=0A=
# CONFIG_HFS_FS is not set=0A=
# CONFIG_HFSPLUS_FS is not set=0A=
# CONFIG_BEFS_FS is not set=0A=
# CONFIG_BFS_FS is not set=0A=
# CONFIG_EFS_FS is not set=0A=
# CONFIG_CRAMFS is not set=0A=
# CONFIG_VXFS_FS is not set=0A=
# CONFIG_HPFS_FS is not set=0A=
# CONFIG_QNX4FS_FS is not set=0A=
# CONFIG_SYSV_FS is not set=0A=
# CONFIG_UFS_FS is not set=0A=
=0A=
#=0A=
# Network File Systems=0A=
#=0A=
CONFIG_NFS_FS=3Dm=0A=
CONFIG_NFS_V3=3Dy=0A=
CONFIG_NFS_V3_ACL=3Dy=0A=
CONFIG_NFS_V4=3Dy=0A=
# CONFIG_NFS_DIRECTIO is not set=0A=
CONFIG_NFSD=3Dm=0A=
CONFIG_NFSD_V3=3Dy=0A=
# CONFIG_NFSD_V3_ACL is not set=0A=
CONFIG_NFSD_V4=3Dy=0A=
CONFIG_NFSD_TCP=3Dy=0A=
CONFIG_LOCKD=3Dm=0A=
CONFIG_LOCKD_V4=3Dy=0A=
CONFIG_EXPORTFS=3Dm=0A=
CONFIG_NFS_ACL_SUPPORT=3Dm=0A=
CONFIG_NFS_COMMON=3Dy=0A=
CONFIG_SUNRPC=3Dm=0A=
CONFIG_SUNRPC_GSS=3Dm=0A=
CONFIG_RPCSEC_GSS_KRB5=3Dm=0A=
# CONFIG_RPCSEC_GSS_SPKM3 is not set=0A=
CONFIG_SMB_FS=3Dm=0A=
# CONFIG_SMB_NLS_DEFAULT is not set=0A=
CONFIG_CIFS=3Dm=0A=
# CONFIG_CIFS_STATS is not set=0A=
# CONFIG_CIFS_XATTR is not set=0A=
# CONFIG_CIFS_EXPERIMENTAL is not set=0A=
# CONFIG_NCP_FS is not set=0A=
# CONFIG_CODA_FS is not set=0A=
# CONFIG_AFS_FS is not set=0A=
CONFIG_9P_FS=3Dm=0A=
=0A=
#=0A=
# Partition Types=0A=
#=0A=
# CONFIG_PARTITION_ADVANCED is not set=0A=
CONFIG_MSDOS_PARTITION=3Dy=0A=
=0A=
#=0A=
# Native Language Support=0A=
#=0A=
CONFIG_NLS=3Dy=0A=
CONFIG_NLS_DEFAULT=3D"iso8859-1"=0A=
# CONFIG_NLS_CODEPAGE_437 is not set=0A=
# CONFIG_NLS_CODEPAGE_737 is not set=0A=
# CONFIG_NLS_CODEPAGE_775 is not set=0A=
# CONFIG_NLS_CODEPAGE_850 is not set=0A=
# CONFIG_NLS_CODEPAGE_852 is not set=0A=
# CONFIG_NLS_CODEPAGE_855 is not set=0A=
# CONFIG_NLS_CODEPAGE_857 is not set=0A=
# CONFIG_NLS_CODEPAGE_860 is not set=0A=
# CONFIG_NLS_CODEPAGE_861 is not set=0A=
# CONFIG_NLS_CODEPAGE_862 is not set=0A=
# CONFIG_NLS_CODEPAGE_863 is not set=0A=
# CONFIG_NLS_CODEPAGE_864 is not set=0A=
# CONFIG_NLS_CODEPAGE_865 is not set=0A=
# CONFIG_NLS_CODEPAGE_866 is not set=0A=
# CONFIG_NLS_CODEPAGE_869 is not set=0A=
# CONFIG_NLS_CODEPAGE_936 is not set=0A=
# CONFIG_NLS_CODEPAGE_950 is not set=0A=
# CONFIG_NLS_CODEPAGE_932 is not set=0A=
# CONFIG_NLS_CODEPAGE_949 is not set=0A=
# CONFIG_NLS_CODEPAGE_874 is not set=0A=
# CONFIG_NLS_ISO8859_8 is not set=0A=
# CONFIG_NLS_CODEPAGE_1250 is not set=0A=
# CONFIG_NLS_CODEPAGE_1251 is not set=0A=
# CONFIG_NLS_ASCII is not set=0A=
# CONFIG_NLS_ISO8859_1 is not set=0A=
# CONFIG_NLS_ISO8859_2 is not set=0A=
# CONFIG_NLS_ISO8859_3 is not set=0A=
# CONFIG_NLS_ISO8859_4 is not set=0A=
# CONFIG_NLS_ISO8859_5 is not set=0A=
# CONFIG_NLS_ISO8859_6 is not set=0A=
# CONFIG_NLS_ISO8859_7 is not set=0A=
# CONFIG_NLS_ISO8859_9 is not set=0A=
# CONFIG_NLS_ISO8859_13 is not set=0A=
# CONFIG_NLS_ISO8859_14 is not set=0A=
# CONFIG_NLS_ISO8859_15 is not set=0A=
# CONFIG_NLS_KOI8_R is not set=0A=
# CONFIG_NLS_KOI8_U is not set=0A=
# CONFIG_NLS_UTF8 is not set=0A=
=0A=
#=0A=
# Profiling support=0A=
#=0A=
# CONFIG_PROFILING is not set=0A=
=0A=
#=0A=
# Kernel hacking=0A=
#=0A=
# CONFIG_PRINTK_TIME is not set=0A=
# CONFIG_MAGIC_SYSRQ is not set=0A=
# CONFIG_DEBUG_KERNEL is not set=0A=
CONFIG_LOG_BUF_SHIFT=3D14=0A=
=0A=
#=0A=
# Security options=0A=
#=0A=
# CONFIG_KEYS is not set=0A=
# CONFIG_SECURITY is not set=0A=
=0A=
#=0A=
# Cryptographic options=0A=
#=0A=
CONFIG_CRYPTO=3Dy=0A=
CONFIG_CRYPTO_HMAC=3Dy=0A=
CONFIG_CRYPTO_NULL=3Dm=0A=
CONFIG_CRYPTO_MD4=3Dy=0A=
CONFIG_CRYPTO_MD5=3Dy=0A=
CONFIG_CRYPTO_SHA1=3Dm=0A=
CONFIG_CRYPTO_SHA256=3Dm=0A=
CONFIG_CRYPTO_SHA512=3Dm=0A=
CONFIG_CRYPTO_WP512=3Dm=0A=
CONFIG_CRYPTO_TGR192=3Dm=0A=
CONFIG_CRYPTO_DES=3Dm=0A=
CONFIG_CRYPTO_BLOWFISH=3Dm=0A=
CONFIG_CRYPTO_TWOFISH=3Dm=0A=
CONFIG_CRYPTO_SERPENT=3Dm=0A=
CONFIG_CRYPTO_AES=3Dm=0A=
CONFIG_CRYPTO_CAST5=3Dm=0A=
CONFIG_CRYPTO_CAST6=3Dm=0A=
CONFIG_CRYPTO_TEA=3Dm=0A=
CONFIG_CRYPTO_ARC4=3Dm=0A=
CONFIG_CRYPTO_KHAZAD=3Dm=0A=
CONFIG_CRYPTO_ANUBIS=3Dm=0A=
CONFIG_CRYPTO_DEFLATE=3Dm=0A=
CONFIG_CRYPTO_MICHAEL_MIC=3Dm=0A=
CONFIG_CRYPTO_CRC32C=3Dy=0A=
# CONFIG_CRYPTO_TEST is not set=0A=
=0A=
#=0A=
# Hardware crypto devices=0A=
#=0A=
=0A=
#=0A=
# Library routines=0A=
#=0A=
# CONFIG_CRC_CCITT is not set=0A=
# CONFIG_CRC16 is not set=0A=
CONFIG_CRC32=3Dy=0A=
CONFIG_LIBCRC32C=3Dy=0A=
CONFIG_ZLIB_INFLATE=3Dm=0A=
CONFIG_ZLIB_DEFLATE=3Dm=0A=

------=_NextPart_000_0076_01C621C1.F67DEB90
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Content-Disposition: attachment;
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102e9a84 r __func_____0=0A=
102e9a94 r __func_____1=0A=
102e9aa4 r __func_____0=0A=
102e9ab8 r __func_____2=0A=
102e9ad8 r spaces=0A=
102e9aec r __func_____2=0A=
102e9b00 r __func_____1=0A=
102e9b18 r __func_____0=0A=
102e9b34 r __func_____1=0A=
102e9b4c r __func_____0=0A=
102e9b60 r ppr_to_ps=0A=
102e9ba0 r Tekram_sync=0A=
102e9bb0 r __func_____0=0A=
102e9bbc r __func_____0=0A=
102e9c24 r __func_____2=0A=
102e9c2c r __func_____5=0A=
102e9c38 r mask___0=0A=
102e9c48 r mask___1=0A=
102e9c54 r __func_____0=0A=
102e9c60 r __func_____1=0A=
102e9d3c r __func_____0=0A=
102e9d48 r rta_max=0A=
102e9d7c r rtm_min=0A=
102e9db0 r __func_____0=0A=
102e9dc4 r fmt_dec=0A=
102e9dc8 r fmt_ulong=0A=
102e9dd0 r fmt_long_hex=0A=
102e9dd8 r fmt_hex=0A=
102e9de0 r __func_____0=0A=
102e9df0 r prio2band=0A=
102e9e14 r __func_____1=0A=
102e9e28 r mtu_plateau=0A=
102e9e3c r __func_____0=0A=
102e9e48 r __func_____0=0A=
102e9e54 r __func_____0=0A=
102e9e60 r __func_____0=0A=
102e9e6c R inet_csk_timer_bug_msg=0A=
102e9e90 r __func_____0=0A=
102e9e9c r new_state=0A=
102e9eac r __func_____0=0A=
102e9eb8 r __func_____0=0A=
102e9ec0 r __func_____0=0A=
102e9ecc r __func_____0=0A=
102e9ed8 r __func_____0=0A=
102e9ee4 r __func_____0=0A=
102e9ef8 r __func_____1=0A=
102e9f04 r __func_____0=0A=
102e9f18 r __func_____1=0A=
102e9f24 r __func_____0=0A=
102e9f30 r icmp_pointers=0A=
102ea060 r __func_____0=0A=
102ea06c r __func_____1=0A=
102ea078 r __func_____2=0A=
102ea090 r __func_____0=0A=
102ea09c r __func_____0=0A=
102ea0a8 r fib_props=0A=
102ea120 r type2flags___0=0A=
102ea150 r snmp4_net_list=0A=
102ea360 r snmp4_udp_list=0A=
102ea388 r snmp4_tcp_list=0A=
102ea400 r snmp4_icmp_list=0A=
102ea4d8 r snmp4_ipstats_list=0A=
102ea568 r __func_____2=0A=
102ea57c r __func_____0=0A=
102ea58c r __func_____1=0A=
102ea598 r __func_____0=0A=
10310a10 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_PXHVquirk_pcie_pxh=0A=
10310a10 R __start_pci_fixups_early=0A=
10310a18 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_PXH_1quirk_pcie_pxh=0A=
10310a20 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_PXH_0quirk_pcie_pxh=0A=
10310a28 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_PXHD_1quirk_pcie_pxh=0A=
10310a30 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_PXHD_0quirk_pcie_pxh=0A=
10310a38 R __end_pci_fixups_early=0A=
10310a38 r =
__pci_fixup_PCI_VENDOR_ID_NCRPCI_DEVICE_ID_NCR_53C810fixup_rev1_53c810=0A=
10310a38 R __start_pci_fixups_header=0A=
10310a40 r __pci_fixup_PCI_VENDOR_ID_NETMOSPCI_ANY_IDquirk_netmos=0A=
10310a48 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_LPCquirk_sis_96x_smbus=0A=
10310a50 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_963quirk_sis_96x_smbus=0A=
10310a58 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_962quirk_sis_96x_smbus=0A=
10310a60 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_961quirk_sis_96x_smbus=0A=
10310a68 r __pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_503quirk_sis_503=0A=
10310a70 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_735quirk_sis_96x_compatible=0A=
10310a78 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_651quirk_sis_96x_compatible=0A=
10310a80 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_650quirk_sis_96x_compatible=0A=
10310a88 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_648quirk_sis_96x_compatible=0A=
10310a90 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_646quirk_sis_96x_compatible=0A=
10310a98 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_645quirk_sis_96x_compatible=0A=
10310aa0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_ICH6_1asus_hides_smbus=
_lpc_ich6=0A=
10310aa8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801EB_0asus_hides_sm=
bus_lpc=0A=
10310ab0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801DB_12asus_hides_s=
mbus_lpc=0A=
10310ab8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801CA_12asus_hides_s=
mbus_lpc=0A=
10310ac0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801BA_0asus_hides_sm=
bus_lpc=0A=
10310ac8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801DB_0asus_hides_sm=
bus_lpc=0A=
10310ad0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82915GM_HBasus_hides_s=
mbus_hostbridge=0A=
10310ad8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82855GM_HBasus_hides_s=
mbus_hostbridge=0A=
10310ae0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82855PM_HBasus_hides_s=
mbus_hostbridge=0A=
10310ae8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_7205_0asus_hides_smbus=
_hostbridge=0A=
10310af0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82865_HBasus_hides_smb=
us_hostbridge=0A=
10310af8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82850_HBasus_hides_smb=
us_hostbridge=0A=
10310b00 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82845G_HBasus_hides_sm=
bus_hostbridge=0A=
10310b08 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82845_HBasus_hides_smb=
us_hostbridge=0A=
10310b10 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82375quirk_eisa_bridge=0A=
10310b18 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801CA_10quirk_ide_sa=
memode=0A=
10310b20 r =
__pci_fixup_PCI_VENDOR_ID_SERVERWORKSPCI_DEVICE_ID_SERVERWORKS_CSB5IDEqui=
rk_svwks_csb5ide=0A=
10310b28 r __pci_fixup_PCI_ANY_IDPCI_ANY_IDquirk_ide_bases=0A=
10310b30 r __pci_fixup_PCI_VENDOR_ID_TOSHIBA0x605quirk_transparent_bridge=0A=
10310b38 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82380FBquirk_transpare=
nt_bridge=0A=
10310b40 r =
__pci_fixup_PCI_VENDOR_ID_DUNORDPCI_DEVICE_ID_DUNORD_I3000quirk_dunord=0A=
10310b48 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C597_0quirk_vt82c598_id=0A=
10310b50 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C686_4quirk_via_acpi=0A=
10310b58 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C586_3quirk_via_acpi=0A=
10310b60 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_8235quirk_vt8235_acpi=0A=
10310b68 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C686_4quirk_vt82c686_acp=
i=0A=
10310b70 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C586_3quirk_vt82c586_acp=
i=0A=
10310b78 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_ICH6_1quirk_ich6_lpc_a=
cpi=0A=
10310b80 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_ESB_1quirk_ich4_lpc_ac=
pi=0A=
10310b88 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801EB_0quirk_ich4_lp=
c_acpi=0A=
10310b90 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801DB_12quirk_ich4_l=
pc_acpi=0A=
10310b98 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801DB_0quirk_ich4_lp=
c_acpi=0A=
10310ba0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801CA_12quirk_ich4_l=
pc_acpi=0A=
10310ba8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801CA_0quirk_ich4_lp=
c_acpi=0A=
10310bb0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801BA_10quirk_ich4_l=
pc_acpi=0A=
10310bb8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801BA_0quirk_ich4_lp=
c_acpi=0A=
10310bc0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801AB_0quirk_ich4_lp=
c_acpi=0A=
10310bc8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801AA_0quirk_ich4_lp=
c_acpi=0A=
10310bd0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82371AB_3quirk_piix4_a=
cpi=0A=
10310bd8 r =
__pci_fixup_PCI_VENDOR_ID_ALPCI_DEVICE_ID_AL_M7101quirk_ali7101_acpi=0A=
10310be0 r __pci_fixup_PCI_VENDOR_ID_S3PCI_DEVICE_ID_S3_968quirk_s3_64M=0A=
10310be8 r __pci_fixup_PCI_VENDOR_ID_S3PCI_DEVICE_ID_S3_868quirk_s3_64M=0A=
10310bf0 r =
__pci_fixup_PCI_VENDOR_ID_IBMPCI_DEVICE_ID_IBM_CITRINEquirk_citrine=0A=
10310bf8 R __end_pci_fixups_header=0A=
10310bf8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_E7525_MCHquirk_pcie_mc=
h=0A=
10310bf8 R __start_pci_fixups_final=0A=
10310c00 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_E7320_MCHquirk_pcie_mc=
h=0A=
10310c08 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_E7520_MCHquirk_pcie_mc=
h=0A=
10310c10 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82454NXquirk_disable_p=
xb=0A=
10310c18 r =
__pci_fixup_PCI_VENDOR_ID_CYRIXPCI_DEVICE_ID_CYRIX_PCI_MASTERquirk_mediag=
x_master=0A=
10310c20 r =
__pci_fixup_PCI_VENDOR_ID_AMDPCI_DEVICE_ID_AMD_FE_GATE_700Cquirk_amd_orde=
ring=0A=
10310c28 r __pci_fixup_PCI_ANY_IDPCI_ANY_IDquirk_cardbus_legacy=0A=
10310c30 r =
__pci_fixup_PCI_VENDOR_ID_ATIPCI_DEVICE_ID_ATI_RS100quirk_ati_exploding_m=
ce=0A=
10310c38 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82443BX_2quirk_natoma=0A=
10310c40 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82443BX_1quirk_natoma=0A=
10310c48 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82443BX_0quirk_natoma=0A=
10310c50 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82443LX_1quirk_natoma=0A=
10310c58 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82443LX_0quirk_natoma=0A=
10310c60 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82441quirk_natoma=0A=
10310c68 r =
__pci_fixup_PCI_VENDOR_ID_ALPCI_DEVICE_ID_AL_M1651quirk_alimagik=0A=
10310c70 r =
__pci_fixup_PCI_VENDOR_ID_ALPCI_DEVICE_ID_AL_M1647quirk_alimagik=0A=
10310c78 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C576quirk_vsfx=0A=
10310c80 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C597_0quirk_viaetbf=0A=
10310c88 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_8361quirk_vialatency=0A=
10310c90 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_8371_1quirk_vialatency=0A=
10310c98 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_8363_0quirk_vialatency=0A=
10310ca0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82439TXquirk_triton=0A=
10310ca8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82439quirk_triton=0A=
10310cb0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82437VXquirk_triton=0A=
10310cb8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82437quirk_triton=0A=
10310cc0 r __pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_496quirk_nopcipci=0A=
10310cc8 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_5597quirk_nopcipci=0A=
10310cd0 r =
__pci_fixup_PCI_VENDOR_ID_NECPCI_DEVICE_ID_NEC_CBUS_3quirk_isa_dma_hangs=0A=
10310cd8 r =
__pci_fixup_PCI_VENDOR_ID_NECPCI_DEVICE_ID_NEC_CBUS_2quirk_isa_dma_hangs=0A=
10310ce0 r =
__pci_fixup_PCI_VENDOR_ID_NECPCI_DEVICE_ID_NEC_CBUS_1quirk_isa_dma_hangs=0A=
10310ce8 r =
__pci_fixup_PCI_VENDOR_ID_ALPCI_DEVICE_ID_AL_M1533quirk_isa_dma_hangs=0A=
10310cf0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82371SB_0quirk_isa_dma=
_hangs=0A=
10310cf8 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C596quirk_isa_dma_hangs=0A=
10310d00 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C586_0quirk_isa_dma_hang=
s=0A=
10310d08 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82441quirk_passive_rel=
ease=0A=
10310d10 r __pci_fixup_PCI_ANY_IDPCI_ANY_IDquirk_usb_early_handoff=0A=
10310d18 R __end_pci_fixups_final=0A=
10310d18 r __pci_fixup_PCI_VENDOR_ID_VIAPCI_ANY_IDquirk_via_irq=0A=
10310d18 R __start_pci_fixups_enable=0A=
10310d20 r =
__pci_fixup_PCI_VENDOR_ID_CIRRUSPCI_DEVICE_ID_CIRRUS_6832quirk_cirrus_car=
dbus=0A=
10310d28 R __end_pci_fixups_enable=0A=
10310d28 ? __end_rio_route_ops=0A=
10310d28 r __ksymtab_loops_per_jiffy=0A=
10310d28 R __start___ksymtab=0A=
10310d28 ? __start_rio_route_ops=0A=
10310d30 r __ksymtab_system_state=0A=
10310d38 r __ksymtab_system_utsname=0A=
10310d40 r __ksymtab_vmalloc_start=0A=
10310d48 r __ksymtab_flush_kernel_icache_range_asm=0A=
10310d50 r __ksymtab_flush_data_cache_local=0A=
10310d58 r __ksymtab_flush_kernel_dcache_page=0A=
10310d60 r __ksymtab_flush_kernel_dcache_range_asm=0A=
10310d68 r __ksymtab_flush_dcache_page=0A=
10310d70 r __ksymtab_flush_all_caches=0A=
10310d78 r __ksymtab_flush_cache_all_local=0A=
10310d80 r __ksymtab_dcache_stride=0A=
10310d88 r __ksymtab_dump_stack=0A=
10310d90 r __ksymtab_do_settimeofday=0A=
10310d98 r __ksymtab_do_gettimeofday=0A=
10310da0 r __ksymtab_profile_pc=0A=
10310da8 r __ksymtab_pdc_sti_call=0A=
10310db0 r __ksymtab_pdc_tod_set=0A=
10310db8 r __ksymtab_pdc_tod_read=0A=
10310dc0 r __ksymtab_pdc_get_initiator=0A=
10310dc8 r __ksymtab_pdc_stable_initialize=0A=
10310dd0 r __ksymtab_pdc_stable_verify_contents=0A=
10310dd8 r __ksymtab_pdc_stable_get_size=0A=
10310de0 r __ksymtab_pdc_stable_write=0A=
10310de8 r __ksymtab_pdc_stable_read=0A=
10310df0 r __ksymtab_pdc_lan_station_id=0A=
10310df8 r __ksymtab_pdc_iodc_read=0A=
10310e00 r __ksymtab_pdc_add_valid=0A=
10310e08 r __ksymtab_device_to_hwpath=0A=
10310e10 r __ksymtab_hwpath_to_device=0A=
10310e18 r __ksymtab_print_pci_hwpath=0A=
10310e20 r __ksymtab_get_pci_node_path=0A=
10310e28 r __ksymtab_print_pa_hwpath=0A=
10310e30 r __ksymtab_unregister_parisc_driver=0A=
10310e38 r __ksymtab_register_parisc_driver=0A=
10310e40 r __ksymtab_hppa_dma_ops=0A=
10310e48 r __ksymtab_$$dyncall=0A=
10310e50 r __ksymtab___canonicalize_funcptr_for_compare=0A=
10310e58 r __ksymtab___muldi3=0A=
10310e60 r __ksymtab___lshrdi3=0A=
10310e68 r __ksymtab___ashldi3=0A=
10310e70 r __ksymtab___ashrdi3=0A=
10310e78 r __ksymtab_$$divI_15=0A=
10310e80 r __ksymtab_$$divI_14=0A=
10310e88 r __ksymtab_$$divI_12=0A=
10310e90 r __ksymtab_$$divI_10=0A=
10310e98 r __ksymtab_$$divI_9=0A=
10310ea0 r __ksymtab_$$divI_7=0A=
10310ea8 r __ksymtab_$$divI_6=0A=
10310eb0 r __ksymtab_$$divI_5=0A=
10310eb8 r __ksymtab_$$divI_3=0A=
10310ec0 r __ksymtab_$$divU_15=0A=
10310ec8 r __ksymtab_$$divU_14=0A=
10310ed0 r __ksymtab_$$divU_7=0A=
10310ed8 r __ksymtab_$$divU_12=0A=
10310ee0 r __ksymtab_$$divU_10=0A=
10310ee8 r __ksymtab_$$divU_9=0A=
10310ef0 r __ksymtab_$$divU_6=0A=
10310ef8 r __ksymtab_$$divU_5=0A=
10310f00 r __ksymtab_$$divU_3=0A=
10310f08 r __ksymtab_$$mulI=0A=
10310f10 r __ksymtab_$$remU=0A=
10310f18 r __ksymtab_$$remI=0A=
10310f20 r __ksymtab_$$divU=0A=
10310f28 r __ksymtab_$$divI=0A=
10310f30 r __ksymtab___down=0A=
10310f38 r __ksymtab___down_interruptible=0A=
10310f40 r __ksymtab___up=0A=
10310f48 r __ksymtab_sys_write=0A=
10310f50 r __ksymtab_sys_read=0A=
10310f58 r __ksymtab_sys_lseek=0A=
10310f60 r __ksymtab_sys_open=0A=
10310f68 r __ksymtab_memset_io=0A=
10310f70 r __ksymtab_memcpy_fromio=0A=
10310f78 r __ksymtab_memcpy_toio=0A=
10310f80 r __ksymtab_iounmap=0A=
10310f88 r __ksymtab___ioremap=0A=
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10365b74 d sym_fw1b_ofs=0A=
10365ba0 d sym_fw1b_scr=0A=
10365f14 d sym_fw1a_ofs=0A=
10365f44 d sym_fw1a_scr=0A=
10366c80 d sym_fw2=0A=
10366cb0 d sym_fw2z_ofs=0A=
10366cb4 d sym_fw2z_scr=0A=
10366cd4 d sym_fw2b_ofs=0A=
10366d00 d sym_fw2b_scr=0A=
103671e4 d sym_fw2a_ofs=0A=
10367214 d sym_fw2a_scr=0A=
10367de4 d __param_str_safe=0A=
10367df4 d __param_str_excl=0A=
10367e04 d __param_str_nvram=0A=
10367e14 d __param_str_settle=0A=
10367e28 d __param_str_debug=0A=
10367e38 d __param_str_verb=0A=
10367e48 d __param_str_hostid=0A=
10367e5c d __param_str_buschk=0A=
10367e70 d __param_str_irqm=0A=
10367e80 d __param_str_diff=0A=
10367e90 d __param_str_led=0A=
10367ea0 d __param_str_burst=0A=
10367eb0 d __param_string_tag_ctrl=0A=
10367eb8 d __param_str_tag_ctrl=0A=
10367ecc d __param_str_cmd_per_lun=0A=
10367ee4 D sym_debug_flags=0A=
10367ee8 D sym_driver_setup=0A=
10367f78 d sym2_driver=0A=
10368038 d sym2_id_table=0A=
10368230 d sym2_transport_functions=0A=
10368298 d sym2_template=0A=
10368320 d div_10M=0A=
1036833c d sym_dev_table=0A=
1036845c d mp0=0A=
10368514 d Symbios_trailer___0=0A=
1036851c d zalon_driver=0A=
103685bc d zalon_tbl=0A=
103685cc d zalon7xx_template=0A=
10368654 d driver_setup=0A=
103686f4 d ncr53c8xx_transport_functions=0A=
1036875c d mp0=0A=
10368818 d ncr53c8xx_host_attrs=0A=
10368820 d ncr53c8xx_revision_attr=0A=
10368834 d div_10M=0A=
10368850 d NCR_700_transport_functions=0A=
103688b8 d NCR_700_SBCL_to_phase=0A=
103688d8 d NCR_700_SBCL_bits=0A=
103688f8 d NCR_700_condition=0A=
10368924 d A_SGScriptStartAddress_used=0A=
1036892c d A_CommandCount_used=0A=
10368930 d A_CommandAddress_used=0A=
10368934 d NCR_700_fatal_messages=0A=
10368944 d NCR_700_phase=0A=
10368964 d NCR_700_SDTR_msg=0A=
1036896c d A_MessageCount_used=0A=
10368970 d A_ReceiveMsgAddress_used=0A=
103689b0 d A_StatusAddress_used=0A=
103689b4 d A_MessageLocation_used=0A=
103689b8 d LABELPATCHES=0A=
10368a98 d PATCHES=0A=
10368a9c d SCRIPT=0A=
10368f44 d NCR_700_dev_attrs=0A=
10368f4c d NCR_700_active_tags_attr=0A=
10368f60 d lasi700_driver=0A=
10369000 d lasi700_ids=0A=
10369018 d lasi700_template=0A=
103690a0 D class_device_attr_default_compression=0A=
103690b4 D class_device_attr_default_density=0A=
103690c8 D class_device_attr_default_blksize=0A=
103690dc D class_device_attr_defined=0A=
103690f0 d try_wdio=0A=
103690f4 d __param_str_try_wdio=0A=
10369100 d try_rdio=0A=
10369104 d __param_str_try_rdio=0A=
10369110 d try_direct_io=0A=
10369114 d __param_str_try_direct_io=0A=
10369128 d __param_str_max_sg_segs=0A=
10369138 d __param_str_buffer_kbs=0A=
10369148 d st_max_sg_segs=0A=
1036914c d st_fixed_buffer_size=0A=
10369150 d st_template=0A=
103691f4 d verstr=0A=
103691f8 d st_ref_sem=0A=
10369204 d st_formats=0A=
10369244 d st_fops=0A=
103692b0 d reject_list=0A=
10369310 d driver_attr_version=0A=
10369324 d driver_attr_max_sg_segs=0A=
10369338 d driver_attr_fixed_buffer_size=0A=
1036934c d driver_attr_try_direct_io=0A=
10369360 d sd_template=0A=
10369404 d sd_ref_sem=0A=
10369410 d sd_fops=0A=
10369434 d sr_template=0A=
103694d8 d sr_ref_sem=0A=
103694e4 d sr_dops=0A=
10369524 d sr_bdops=0A=
10369548 d loadmech___0=0A=
10369568 d __param_str_xa_test=0A=
10369578 d __param_str_allow_dio=0A=
10369588 d def_reserved_size=0A=
1036958c d __param_str_def_reserved_size=0A=
103695a4 D sg_big_buff=0A=
103695a8 d sg_interface=0A=
103695bc d sg_fops=0A=
10369628 d sg_mmap_vm_ops=0A=
10369638 d sg_version_num=0A=
1036963c d allow_ops=0A=
10369650 d sg_proc_leaf_arr=0A=
10369688 d version_fops=0A=
103696f4 d devstrs_fops=0A=
10369760 d dev_fops=0A=
103697cc d devhdr_fops=0A=
10369838 d dressz_fops=0A=
103698a4 d debug_fops=0A=
10369910 d adio_fops=0A=
1036997c d sg_proc_sg_dirname=0A=
10369984 d debug_seq_ops=0A=
10369994 d dev_seq_ops=0A=
103699a4 d devstrs_seq_ops=0A=
103699b4 d sg_version_date=0A=
103699b8 d mrw_format_restart=0A=
103699bc d __param_str_mrw_format_restart=0A=
103699d8 d __param_str_check_media_type=0A=
103699f0 d lockdoor=0A=
103699f4 d __param_str_lockdoor=0A=
10369a04 d __param_str_autoeject=0A=
10369a14 d autoclose=0A=
10369a18 d __param_str_autoclose=0A=
10369a28 d __param_str_debug=0A=
10369a34 d cdrom_root_table=0A=
10369a8c d cdrom_cdrom_table=0A=
10369ae4 d cdrom_table=0A=
10369c18 d mrw_format_status=0A=
10369c28 d mrw_address_space=0A=
10369c30 D input_class=0A=
10369cbc d input_fops=0A=
10369d28 d input_handler_list=0A=
10369d30 d input_devices_poll_wait=0A=
10369d38 d input_dev_list=0A=
10369d40 d input_dev_attr_group=0A=
10369d48 d input_dev_attrs=0A=
10369d58 d class_device_attr_uniq=0A=
10369d6c d class_device_attr_phys=0A=
10369d80 d class_device_attr_name=0A=
10369d94 d input_dev_id_attr_group=0A=
10369d9c d input_dev_id_attrs=0A=
10369db0 d class_device_attr_version=0A=
10369dc4 d class_device_attr_product=0A=
10369dd8 d class_device_attr_vendor=0A=
10369dec d class_device_attr_bustype=0A=
10369e00 d input_dev_caps_attr_group=0A=
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10369e30 d class_device_attr_sw=0A=
10369e44 d class_device_attr_ff=0A=
10369e58 d class_device_attr_snd=0A=
10369e6c d class_device_attr_led=0A=
10369e80 d class_device_attr_msc=0A=
10369e94 d class_device_attr_abs=0A=
10369ea8 d class_device_attr_rel=0A=
10369ebc d class_device_attr_key=0A=
10369ed0 d class_device_attr_ev=0A=
10369ee4 d tap_time=0A=
10369ee8 d __param_str_tap_time=0A=
10369efc d yres=0A=
10369f00 d __param_str_yres=0A=
10369f10 d xres=0A=
10369f14 d __param_str_xres=0A=
10369f24 d psaux_mouse=0A=
10369f80 d mousedev_fops=0A=
10369fec d mousedev_handler=0A=
1036a020 d mousedev_ids=0A=
1036a2a0 d mousedev_imps_seq=0A=
1036a2a8 d mousedev_imex_seq=0A=
1036a2b0 d evdev_handler=0A=
1036a2e4 d evdev_ids=0A=
1036a3e4 d evdev_fops=0A=
1036a450 d __param_str_extra=0A=
1036a45c d __param_str_scroll=0A=
1036a46c d atkbd_softraw=0A=
1036a470 d __param_str_softraw=0A=
1036a480 d __param_str_softrepeat=0A=
1036a494 d __param_str_reset=0A=
1036a4a0 d atkbd_set=0A=
1036a4a4 d __param_str_set=0A=
1036a4b0 d atkbd_drv=0A=
1036a564 d atkbd_serio_ids=0A=
1036a574 d atkbd_attr_softraw=0A=
1036a588 d atkbd_attr_softrepeat=0A=
1036a59c d atkbd_attr_set=0A=
1036a5b0 d atkbd_attr_scroll=0A=
1036a5c4 d atkbd_attr_extra=0A=
1036a5d8 d atkbd_set3_keycode=0A=
1036a7d8 d atkbd_scroll_keys=0A=
1036a7e8 d atkbd_unxlate_table=0A=
1036a868 d atkbd_set2_keycode=0A=
1036aa68 D sysctl_somaxconn=0A=
1036aa6c D bad_sock_fops=0A=
1036aad8 d sock_fs_type=0A=
1036aaf8 d sockfs_ops=0A=
1036ab48 d nargs=0A=
1036ab5c d dlci_ioctl_mutex=0A=
1036ab68 d vlan_ioctl_mutex=0A=
1036ab74 d br_ioctl_mutex=0A=
1036ab80 d socket_file_ops=0A=
1036abec d sockfs_dentry_operations=0A=
1036ac04 D sysctl_optmem_max=0A=
1036ac08 D sysctl_rmem_default=0A=
1036ac0c D sysctl_wmem_default=0A=
1036ac10 D sysctl_rmem_max=0A=
1036ac14 D sysctl_wmem_max=0A=
1036ac18 d proto_seq_fops=0A=
1036ac84 d proto_seq_ops=0A=
1036ac94 d proto_list=0A=
1036ac9c D sysctl_max_syn_backlog=0A=
1036aca0 D core_table=0A=
1036aeb0 D per_cpu__netdev_rx_stat=0A=
1036aec0 D weight_p=0A=
1036aec4 D netdev_budget=0A=
1036aec8 D netdev_max_backlog=0A=
1036aecc D per_cpu__softnet_data=0A=
1036b12c D dev_base_lock=0A=
1036b12c d dev_boot_phase=0A=
1036b130 d softnet_seq_fops=0A=
1036b19c d dev_seq_fops=0A=
1036b208 d dev_seq_ops=0A=
1036b218 d softnet_seq_ops=0A=
1036b228 d dev_tail=0A=
1036b22c d net_todo_list=0A=
1036b234 d net_todo_run_mutex=0A=
1036b240 d dev_mc_seq_fops=0A=
1036b2ac d dev_mc_seq_ops=0A=
1036b2bc d dst_dev_notifier=0A=
1036b2c8 d dst_gc_timer=0A=
1036b2e0 d dst_gc_timer_inc=0A=
1036b2e4 d neigh_sysctl_template=0A=
1036b78c d neigh_stat_seq_fops=0A=
1036b7f8 d neigh_stat_seq_ops=0A=
1036b808 D rtnl_sem=0A=
1036b814 d link_rtnetlink_table=0A=
1036b9b4 d rtnetlink_dev_notifier=0A=
1036b9c0 D net_msg_burst=0A=
1036b9c4 D net_msg_cost=0A=
1036b9c8 d linkwatch_work=0A=
1036b9f8 d lweventlist=0A=
1036ba00 d net_class=0A=
1036ba8c d wireless_group=0A=
1036ba94 d wireless_attrs=0A=
1036bac0 d class_device_attr_beacon=0A=
1036bad4 d class_device_attr_misc=0A=
1036bae8 d class_device_attr_retries=0A=
1036bafc d class_device_attr_fragment=0A=
1036bb10 d class_device_attr_crypt=0A=
1036bb24 d class_device_attr_nwid=0A=
1036bb38 d class_device_attr_noise=0A=
1036bb4c d class_device_attr_level=0A=
1036bb60 d class_device_attr_link=0A=
1036bb74 d class_device_attr_status=0A=
1036bb88 d netstat_group=0A=
1036bb90 d netstat_attrs=0A=
1036bbf0 d class_device_attr_tx_compressed=0A=
1036bc04 d class_device_attr_rx_compressed=0A=
1036bc18 d class_device_attr_tx_window_errors=0A=
1036bc2c d class_device_attr_tx_heartbeat_errors=0A=
1036bc40 d class_device_attr_tx_fifo_errors=0A=
1036bc54 d class_device_attr_tx_carrier_errors=0A=
1036bc68 d class_device_attr_tx_aborted_errors=0A=
1036bc7c d class_device_attr_rx_missed_errors=0A=
1036bc90 d class_device_attr_rx_fifo_errors=0A=
1036bca4 d class_device_attr_rx_frame_errors=0A=
1036bcb8 d class_device_attr_rx_crc_errors=0A=
1036bccc d class_device_attr_rx_over_errors=0A=
1036bce0 d class_device_attr_rx_length_errors=0A=
1036bcf4 d class_device_attr_collisions=0A=
1036bd08 d class_device_attr_multicast=0A=
1036bd1c d class_device_attr_tx_dropped=0A=
1036bd30 d class_device_attr_rx_dropped=0A=
1036bd44 d class_device_attr_tx_errors=0A=
1036bd58 d class_device_attr_rx_errors=0A=
1036bd6c d class_device_attr_tx_bytes=0A=
1036bd80 d class_device_attr_rx_bytes=0A=
1036bd94 d class_device_attr_tx_packets=0A=
1036bda8 d class_device_attr_rx_packets=0A=
1036bdbc d net_class_attributes=0A=
1036bdf0 d class_device_attr_carrier=0A=
1036be04 d class_device_attr_broadcast=0A=
1036be18 d class_device_attr_address=0A=
1036be2c d class_device_attr_type=0A=
1036be40 d class_device_attr_weight=0A=
1036be54 d class_device_attr_flags=0A=
1036be68 d class_device_attr_mtu=0A=
1036be7c d class_device_attr_features=0A=
1036be90 d class_device_attr_tx_queue_len=0A=
1036bea4 d class_device_attr_addr_len=0A=
1036beb8 d class_device_attr_iflink=0A=
1036becc d class_device_attr_ifindex=0A=
1036bee0 D ether_table=0A=
1036bf0c D tr_table=0A=
1036bf38 D noop_qdisc=0A=
1036bfb0 D noop_qdisc_ops=0A=
1036bff8 d noqueue_qdisc=0A=
1036bff8 D qdisc_tree_lock=0A=
1036c070 d noqueue_qdisc_ops=0A=
1036c0b8 d pfifo_fast_ops=0A=
1036c100 d netlink_seq_fops=0A=
1036c16c d netlink_family_ops=0A=
1036c180 d netlink_proto=0A=
1036c26c d nl_table_wait=0A=
1036c274 d netlink_ops=0A=
1036c2bc d netlink_seq_ops=0A=
1036c2cc d rover___0=0A=
1036c2d0 D genl_sock=0A=
1036c2d4 d genl_ctrl_ops=0A=
1036c2f0 d genl_ctrl=0A=
1036c328 d genl_sem=0A=
1036c334 D ipv4_route_table=0A=
1036c6a4 d ip_rt_secret_interval=0A=
1036c6a8 d ip_rt_min_advmss=0A=
1036c6ac d ip_rt_min_pmtu=0A=
1036c6b0 d ip_rt_mtu_expires=0A=
1036c6b4 d ip_rt_gc_elasticity=0A=
1036c6b8 d ip_rt_error_burst=0A=
1036c6bc d ip_rt_error_cost=0A=
1036c6c0 d ip_rt_redirect_silence=0A=
1036c6c4 d ip_rt_redirect_number=0A=
1036c6c8 d ip_rt_redirect_load=0A=
1036c6cc d ip_rt_gc_interval=0A=
1036c6d0 d ip_rt_gc_timeout=0A=
1036c6d4 d ip_rt_gc_min_interval=0A=
1036c6d8 d ipv4_dst_ops=0A=
1036c708 d ip_rt_max_delay=0A=
1036c70c d ip_rt_min_delay=0A=
1036c710 D ip_tos2prio=0A=
1036c720 d rt_cpu_seq_fops=0A=
1036c78c d rt_cache_seq_fops=0A=
1036c7f8 d rt_cache_seq_ops=0A=
1036c808 d rt_cpu_seq_ops=0A=
1036c818 d expire___1=0A=
1036c81c D inet_peer_gc_maxtime=0A=
1036c820 D inet_peer_gc_mintime=0A=
1036c824 D inet_peer_unused_lock=0A=
1036c824 D inet_peer_unused_tailp=0A=
1036c828 D inet_peer_maxttl=0A=
1036c82c D inet_peer_minttl=0A=
1036c830 D inet_peer_threshold=0A=
1036c834 D inet_peer_idlock=0A=
1036c834 d peer_fake_node=0A=
1036c85c d peer_root=0A=
1036c860 d peer_periodic_timer=0A=
1036c878 D ip_frag_mem=0A=
1036c87c D sysctl_ipfrag_secret_interval=0A=
1036c880 D ip_frag_nqueues=0A=
1036c884 D sysctl_ipfrag_time=0A=
1036c888 D sysctl_ipfrag_low_thresh=0A=
1036c88c D sysctl_ipfrag_high_thresh=0A=
1036c890 d ipq_lru_list=0A=
1036c898 D sysctl_ip_default_ttl=0A=
1036c89c D ip_ra_lock=0A=
1036c89c D sysctl_local_port_range=0A=
1036c8a4 D sysctl_tcp_rmem=0A=
1036c8b0 D sysctl_tcp_wmem=0A=
1036c8bc D tcp_orphan_count=0A=
1036c8c0 D sysctl_tcp_fin_timeout=0A=
1036c8c4 D sysctl_tcp_abc=0A=
1036c8c8 D sysctl_tcp_moderate_rcvbuf=0A=
1036c8cc D sysctl_tcp_max_orphans=0A=
1036c8d0 D sysctl_tcp_adv_win_scale=0A=
1036c8d4 D sysctl_tcp_app_win=0A=
1036c8d8 D sysctl_tcp_dsack=0A=
1036c8dc D sysctl_tcp_reordering=0A=
1036c8e0 D sysctl_tcp_fack=0A=
1036c8e4 D sysctl_tcp_sack=0A=
1036c8e8 D sysctl_tcp_window_scaling=0A=
1036c8ec D sysctl_tcp_timestamps=0A=
1036c8f0 D sysctl_tcp_tso_win_divisor=0A=
1036c8f4 D sysctl_tcp_retrans_collapse=0A=
1036c8f8 D sysctl_tcp_retries2=0A=
1036c8fc D sysctl_tcp_retries1=0A=
1036c900 D sysctl_tcp_keepalive_intvl=0A=
1036c904 D sysctl_tcp_keepalive_probes=0A=
1036c908 D sysctl_tcp_keepalive_time=0A=
1036c90c D sysctl_tcp_synack_retries=0A=
1036c910 D sysctl_tcp_syn_retries=0A=
1036c914 D tcp_prot=0A=
1036ca00 D ipv4_specific=0A=
1036ca2c D tcp_request_sock_ops=0A=
1036ca48 d tcp4_seq_afinfo=0A=
1036ca5c D tcp_death_row=0A=
1036cb80 D sysctl_tcp_syncookies=0A=
1036cb84 D tcp_init_congestion_ops=0A=
1036cbcc D tcp_reno=0A=
1036cc14 d tcp_cong_list=0A=
1036cc1c D raw_prot=0A=
1036cd08 d raw_seq_fops=0A=
1036cd08 D raw_v4_lock=0A=
1036cd74 d raw_seq_ops=0A=
1036cd84 D udp_prot=0A=
1036ce70 d udp4_seq_afinfo=0A=
1036ce70 D udp_hash_lock=0A=
1036ce84 D arp_tbl=0A=
1036cf7c D arp_broken_ops=0A=
1036cf9c d arp_generic_ops=0A=
1036cfbc d arp_hh_ops=0A=
1036cfdc d arp_direct_ops=0A=
1036cffc d arp_netdev_notifier=0A=
1036d008 d arp_packet_type=0A=
1036d020 d arp_seq_fops=0A=
1036d08c d arp_seq_ops=0A=
1036d09c D sysctl_icmp_ratemask=0A=
1036d0a0 D sysctl_icmp_ratelimit=0A=
1036d0a4 D sysctl_icmp_echo_ignore_broadcasts=0A=
1036d0a8 D icmp_err_convert=0A=
1036d128 D ipv4_devconf=0A=
1036d17c d ipv4_devconf_dflt=0A=
1036d1d0 d devinet_sysctl=0A=
1036d6d0 d inet_rtnetlink_table=0A=
1036d870 d ip_netdev_notifier=0A=
1036d87c D inet_dgram_ops=0A=
1036d8c4 D inet_stream_ops=0A=
1036d90c d ip_packet_type=0A=
1036d924 d inetsw_array=0A=
1036d984 d inet_sockraw_ops=0A=
1036d9cc d tcp_protocol=0A=
1036d9d8 d udp_protocol=0A=
1036d9e4 d icmp_protocol=0A=
1036d9f0 d inet_family_ops=0A=
1036da04 D sysctl_igmp_max_msf=0A=
1036da08 D sysctl_igmp_max_memberships=0A=
1036da0c d igmp_mcf_seq_fops=0A=
1036da78 d igmp_mc_seq_fops=0A=
1036dae4 d igmp_mc_seq_ops=0A=
1036daf4 d igmp_mcf_seq_ops=0A=
1036db04 D ipv4_table=0A=
1036e5ac d ip_local_port_range_max=0A=
1036e5b4 d ip_local_port_range_min=0A=
1036e5bc d tcp_retr1_max=0A=
1036e5c0 d fib_inetaddr_notifier=0A=
1036e5cc d fib_netdev_notifier=0A=
1036e5d8 d fib_seq_fops=0A=
1036e644 d fib_seq_ops=0A=
1036e654 d fn_hash_last_dflt=0A=
1036e658 d sockstat_seq_fops=0A=
1036e6c4 d snmp_seq_fops=0A=
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__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_LPCquirk_sis_96x_smbus=0A=
1032f4d0 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_963quirk_sis_96x_smbus=0A=
1032f4d8 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_962quirk_sis_96x_smbus=0A=
1032f4e0 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_961quirk_sis_96x_smbus=0A=
1032f4e8 r __pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_503quirk_sis_503=0A=
1032f4f0 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_735quirk_sis_96x_compatible=0A=
1032f4f8 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_651quirk_sis_96x_compatible=0A=
1032f500 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_650quirk_sis_96x_compatible=0A=
1032f508 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_648quirk_sis_96x_compatible=0A=
1032f510 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_646quirk_sis_96x_compatible=0A=
1032f518 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_645quirk_sis_96x_compatible=0A=
1032f520 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_ICH6_1asus_hides_smbus=
_lpc_ich6=0A=
1032f528 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801EB_0asus_hides_sm=
bus_lpc=0A=
1032f530 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801DB_12asus_hides_s=
mbus_lpc=0A=
1032f538 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801CA_12asus_hides_s=
mbus_lpc=0A=
1032f540 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801BA_0asus_hides_sm=
bus_lpc=0A=
1032f548 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801DB_0asus_hides_sm=
bus_lpc=0A=
1032f550 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82915GM_HBasus_hides_s=
mbus_hostbridge=0A=
1032f558 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82855GM_HBasus_hides_s=
mbus_hostbridge=0A=
1032f560 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82855PM_HBasus_hides_s=
mbus_hostbridge=0A=
1032f568 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_7205_0asus_hides_smbus=
_hostbridge=0A=
1032f570 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82865_HBasus_hides_smb=
us_hostbridge=0A=
1032f578 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82850_HBasus_hides_smb=
us_hostbridge=0A=
1032f580 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82845G_HBasus_hides_sm=
bus_hostbridge=0A=
1032f588 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82845_HBasus_hides_smb=
us_hostbridge=0A=
1032f590 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82375quirk_eisa_bridge=0A=
1032f598 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801CA_10quirk_ide_sa=
memode=0A=
1032f5a0 r =
__pci_fixup_PCI_VENDOR_ID_SERVERWORKSPCI_DEVICE_ID_SERVERWORKS_CSB5IDEqui=
rk_svwks_csb5ide=0A=
1032f5a8 r __pci_fixup_PCI_ANY_IDPCI_ANY_IDquirk_ide_bases=0A=
1032f5b0 r __pci_fixup_PCI_VENDOR_ID_TOSHIBA0x605quirk_transparent_bridge=0A=
1032f5b8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82380FBquirk_transpare=
nt_bridge=0A=
1032f5c0 r =
__pci_fixup_PCI_VENDOR_ID_DUNORDPCI_DEVICE_ID_DUNORD_I3000quirk_dunord=0A=
1032f5c8 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C597_0quirk_vt82c598_id=0A=
1032f5d0 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C686_4quirk_via_acpi=0A=
1032f5d8 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C586_3quirk_via_acpi=0A=
1032f5e0 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_8235quirk_vt8235_acpi=0A=
1032f5e8 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C686_4quirk_vt82c686_acp=
i=0A=
1032f5f0 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C586_3quirk_vt82c586_acp=
i=0A=
1032f5f8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_ICH6_1quirk_ich6_lpc_a=
cpi=0A=
1032f600 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_ESB_1quirk_ich4_lpc_ac=
pi=0A=
1032f608 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801EB_0quirk_ich4_lp=
c_acpi=0A=
1032f610 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801DB_12quirk_ich4_l=
pc_acpi=0A=
1032f618 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801DB_0quirk_ich4_lp=
c_acpi=0A=
1032f620 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801CA_12quirk_ich4_l=
pc_acpi=0A=
1032f628 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801CA_0quirk_ich4_lp=
c_acpi=0A=
1032f630 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801BA_10quirk_ich4_l=
pc_acpi=0A=
1032f638 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801BA_0quirk_ich4_lp=
c_acpi=0A=
1032f640 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801AB_0quirk_ich4_lp=
c_acpi=0A=
1032f648 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801AA_0quirk_ich4_lp=
c_acpi=0A=
1032f650 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82371AB_3quirk_piix4_a=
cpi=0A=
1032f658 r =
__pci_fixup_PCI_VENDOR_ID_ALPCI_DEVICE_ID_AL_M7101quirk_ali7101_acpi=0A=
1032f660 r __pci_fixup_PCI_VENDOR_ID_S3PCI_DEVICE_ID_S3_968quirk_s3_64M=0A=
1032f668 r __pci_fixup_PCI_VENDOR_ID_S3PCI_DEVICE_ID_S3_868quirk_s3_64M=0A=
1032f670 r =
__pci_fixup_PCI_VENDOR_ID_IBMPCI_DEVICE_ID_IBM_CITRINEquirk_citrine=0A=
1032f678 R __end_pci_fixups_header=0A=
1032f678 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_E7525_MCHquirk_pcie_mc=
h=0A=
1032f678 R __start_pci_fixups_final=0A=
1032f680 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_E7320_MCHquirk_pcie_mc=
h=0A=
1032f688 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_E7520_MCHquirk_pcie_mc=
h=0A=
1032f690 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82454NXquirk_disable_p=
xb=0A=
1032f698 r =
__pci_fixup_PCI_VENDOR_ID_CYRIXPCI_DEVICE_ID_CYRIX_PCI_MASTERquirk_mediag=
x_master=0A=
1032f6a0 r =
__pci_fixup_PCI_VENDOR_ID_AMDPCI_DEVICE_ID_AMD_FE_GATE_700Cquirk_amd_orde=
ring=0A=
1032f6a8 r __pci_fixup_PCI_ANY_IDPCI_ANY_IDquirk_cardbus_legacy=0A=
1032f6b0 r =
__pci_fixup_PCI_VENDOR_ID_ATIPCI_DEVICE_ID_ATI_RS100quirk_ati_exploding_m=
ce=0A=
1032f6b8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82443BX_2quirk_natoma=0A=
1032f6c0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82443BX_1quirk_natoma=0A=
1032f6c8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82443BX_0quirk_natoma=0A=
1032f6d0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82443LX_1quirk_natoma=0A=
1032f6d8 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82443LX_0quirk_natoma=0A=
1032f6e0 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82441quirk_natoma=0A=
1032f6e8 r =
__pci_fixup_PCI_VENDOR_ID_ALPCI_DEVICE_ID_AL_M1651quirk_alimagik=0A=
1032f6f0 r =
__pci_fixup_PCI_VENDOR_ID_ALPCI_DEVICE_ID_AL_M1647quirk_alimagik=0A=
1032f6f8 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C576quirk_vsfx=0A=
1032f700 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C597_0quirk_viaetbf=0A=
1032f708 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_8361quirk_vialatency=0A=
1032f710 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_8371_1quirk_vialatency=0A=
1032f718 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_8363_0quirk_vialatency=0A=
1032f720 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82439TXquirk_triton=0A=
1032f728 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82439quirk_triton=0A=
1032f730 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82437VXquirk_triton=0A=
1032f738 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82437quirk_triton=0A=
1032f740 r __pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_496quirk_nopcipci=0A=
1032f748 r =
__pci_fixup_PCI_VENDOR_ID_SIPCI_DEVICE_ID_SI_5597quirk_nopcipci=0A=
1032f750 r =
__pci_fixup_PCI_VENDOR_ID_NECPCI_DEVICE_ID_NEC_CBUS_3quirk_isa_dma_hangs=0A=
1032f758 r =
__pci_fixup_PCI_VENDOR_ID_NECPCI_DEVICE_ID_NEC_CBUS_2quirk_isa_dma_hangs=0A=
1032f760 r =
__pci_fixup_PCI_VENDOR_ID_NECPCI_DEVICE_ID_NEC_CBUS_1quirk_isa_dma_hangs=0A=
1032f768 r =
__pci_fixup_PCI_VENDOR_ID_ALPCI_DEVICE_ID_AL_M1533quirk_isa_dma_hangs=0A=
1032f770 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82371SB_0quirk_isa_dma=
_hangs=0A=
1032f778 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C596quirk_isa_dma_hangs=0A=
1032f780 r =
__pci_fixup_PCI_VENDOR_ID_VIAPCI_DEVICE_ID_VIA_82C586_0quirk_isa_dma_hang=
s=0A=
1032f788 r =
__pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82441quirk_passive_rel=
ease=0A=
1032f790 r __pci_fixup_PCI_ANY_IDPCI_ANY_IDquirk_usb_early_handoff=0A=
1032f798 R __end_pci_fixups_final=0A=
1032f798 r __pci_fixup_PCI_VENDOR_ID_VIAPCI_ANY_IDquirk_via_irq=0A=
1032f798 R __start_pci_fixups_enable=0A=
1032f7a0 r =
__pci_fixup_PCI_VENDOR_ID_CIRRUSPCI_DEVICE_ID_CIRRUS_6832quirk_cirrus_car=
dbus=0A=
1032f7a8 R __end_pci_fixups_enable=0A=
1032f7a8 ? __end_rio_route_ops=0A=
1032f7a8 r __ksymtab_loops_per_jiffy=0A=
1032f7a8 R __start___ksymtab=0A=
1032f7a8 ? __start_rio_route_ops=0A=
1032f7b0 r __ksymtab_system_state=0A=
1032f7b8 r __ksymtab_system_utsname=0A=
1032f7c0 r __ksymtab_vmalloc_start=0A=
1032f7c8 r __ksymtab_flush_kernel_icache_range_asm=0A=
1032f7d0 r __ksymtab_flush_data_cache_local=0A=
1032f7d8 r __ksymtab_flush_kernel_dcache_page=0A=
1032f7e0 r __ksymtab_flush_kernel_dcache_range_asm=0A=
1032f7e8 r __ksymtab_flush_dcache_page=0A=
1032f7f0 r __ksymtab_flush_all_caches=0A=
1032f7f8 r __ksymtab_flush_cache_all_local=0A=
1032f800 r __ksymtab_dcache_stride=0A=
1032f808 r __ksymtab_dump_stack=0A=
1032f810 r __ksymtab_do_settimeofday=0A=
1032f818 r __ksymtab_do_gettimeofday=0A=
1032f820 r __ksymtab_profile_pc=0A=
1032f828 r __ksymtab_pdc_sti_call=0A=
1032f830 r __ksymtab_pdc_tod_set=0A=
1032f838 r __ksymtab_pdc_tod_read=0A=
1032f840 r __ksymtab_pdc_get_initiator=0A=
1032f848 r __ksymtab_pdc_stable_initialize=0A=
1032f850 r __ksymtab_pdc_stable_verify_contents=0A=
1032f858 r __ksymtab_pdc_stable_get_size=0A=
1032f860 r __ksymtab_pdc_stable_write=0A=
1032f868 r __ksymtab_pdc_stable_read=0A=
1032f870 r __ksymtab_pdc_lan_station_id=0A=
1032f878 r __ksymtab_pdc_iodc_read=0A=
1032f880 r __ksymtab_pdc_add_valid=0A=
1032f888 r __ksymtab_device_to_hwpath=0A=
1032f890 r __ksymtab_hwpath_to_device=0A=
1032f898 r __ksymtab_print_pci_hwpath=0A=
1032f8a0 r __ksymtab_get_pci_node_path=0A=
1032f8a8 r __ksymtab_print_pa_hwpath=0A=
1032f8b0 r __ksymtab_unregister_parisc_driver=0A=
1032f8b8 r __ksymtab_register_parisc_driver=0A=
1032f8c0 r __ksymtab_hppa_dma_ops=0A=
1032f8c8 r __ksymtab_$$dyncall=0A=
1032f8d0 r __ksymtab___canonicalize_funcptr_for_compare=0A=
1032f8d8 r __ksymtab___muldi3=0A=
1032f8e0 r __ksymtab___lshrdi3=0A=
1032f8e8 r __ksymtab___ashldi3=0A=
1032f8f0 r __ksymtab___ashrdi3=0A=
1032f8f8 r __ksymtab_$$divI_15=0A=
1032f900 r __ksymtab_$$divI_14=0A=
1032f908 r __ksymtab_$$divI_12=0A=
1032f910 r __ksymtab_$$divI_10=0A=
1032f918 r __ksymtab_$$divI_9=0A=
1032f920 r __ksymtab_$$divI_7=0A=
1032f928 r __ksymtab_$$divI_6=0A=
1032f930 r __ksymtab_$$divI_5=0A=
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1032f980 r __ksymtab_$$divU_3=0A=
1032f988 r __ksymtab_$$mulI=0A=
1032f990 r __ksymtab_$$remU=0A=
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1032f9a0 r __ksymtab_$$divU=0A=
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1032f9b8 r __ksymtab___down_interruptible=0A=
1032f9c0 r __ksymtab___up=0A=
1032f9c8 r __ksymtab_sys_write=0A=
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1032f9e0 r __ksymtab_sys_open=0A=
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1032fa08 r __ksymtab___ioremap=0A=
1032fa10 r __ksymtab_$global$=0A=
1032fa18 r __ksymtab_fixup_put_user_skip_2=0A=
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1032fa28 r __ksymtab_fixup_get_user_skip_2=0A=
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1032fa38 r __ksymtab_lstrnlen_user=0A=
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1032fa48 r __ksymtab_lstrncpy_from_user=0A=
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1032fad0 r __ksymtab_memscan=0A=
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1032faf0 r __ksymtab_kernel_thread=0A=
1032faf8 r __ksymtab_pm_power_off=0A=
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1032fb18 r __ksymtab_outl=0A=
1032fb20 r __ksymtab_outw=0A=
1032fb28 r __ksymtab_outb=0A=
1032fb30 r __ksymtab_inl=0A=
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1032fb40 r __ksymtab_inb=0A=
1032fb48 r __ksymtab_init_task=0A=
1032fb50 r __ksymtab_init_mm=0A=
1032fb58 r __ksymtab_io_schedule=0A=
1032fb60 r __ksymtab_yield=0A=
1032fb68 r __ksymtab_cond_resched_softirq=0A=
1032fb70 r __ksymtab_cond_resched_lock=0A=
1032fb78 r __ksymtab_cond_resched=0A=
1032fb80 r __ksymtab_cpu_present_map=0A=
1032fb88 r __ksymtab_set_user_nice=0A=
1032fb90 r __ksymtab_sleep_on_timeout=0A=
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1032fba0 r __ksymtab_interruptible_sleep_on_timeout=0A=
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1032fbd0 r __ksymtab_complete_all=0A=
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1032fbf0 r __ksymtab_schedule=0A=
1032fbf8 r __ksymtab_per_cpu__kstat=0A=
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1040bcc8 B ptm_driver=0A=
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1040be00 B kbd_table=0A=
1040bf3c B spawnpid=0A=
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1040bfd8 B vc_cons=0A=
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1040d0d4 B console_blanked=0A=
1040d0d8 B do_poke_blanked_console=0A=
1040d0dc B console_blank_hook=0A=
1040d0e0 B console_driver=0A=
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1040d220 b blank_state=0A=
1040d224 b blank_timer_expired=0A=
1040d228 b softcursor_original=0A=
1040d22c b gen_rtc_lock=0A=
1040d22c b gen_rtc_status=0A=
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1040d280 b oldsecs=0A=
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1040d2a4 b attribute_container_list=0A=
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1040d308 B scsi_logging_level=0A=
1040d30c b per_cpu__scsi_done_q=0A=
1040d314 b scsi_host_next_hn=0A=
1040d318 b tur_command___2=0A=
1040d320 b scsi_io_context_cache=0A=
1040d324 b scsi_default_dev_flags=0A=
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1040d428 b scsi_table_header=0A=
1040d42c b proc_scsi=0A=
1040d430 b sym2_transport_template=0A=
1040d434 b excl_string=0A=
1040d438 b safe_string=0A=
1040d43c b attach_count=0A=
1040d440 b NCR_700_transport_template=0A=
1040d440 b sym53c8xx_lock=0A=
1040d444 b A_Device_ID_used=0A=
1040d448 b banner___1=0A=
1040d44c b ret___0=0A=
1040d54c b scsi_tapes=0A=
1040d550 b debugging=0A=
1040d550 b st_dev_arr_lock=0A=
1040d554 b buffer_kbs=0A=
1040d558 b max_sg_segs=0A=
1040d55c b st_dev_max=0A=
1040d560 b st_nr_dev=0A=
1040d564 b st_sysfs_class=0A=
1040d568 b write_threshold_kbs=0A=
1040d56c b modes_defined=0A=
1040d570 b sd_index_idr=0A=
1040d580 b sd_index_lock=0A=
1040d580 b sr_index_bits=0A=
1040d580 b sr_index_lock=0A=
1040d5a0 b xa_test=0A=
1040d5a4 b sg_allow_dio=0A=
1040d5a8 b sg_sysfs_valid=0A=
1040d5ac b sg_dev_arr=0A=
1040d5ac b sg_dev_arr_lock=0A=
1040d5b0 b sg_proc_sgp=0A=
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1040d5b8 b sg_nr_dev=0A=
1040d5bc b sg_sysfs_class=0A=
1040d5c0 b cdrom_lock=0A=
1040d5c0 b initialized___0=0A=
1040d5c4 b banner_printed___1=0A=
1040d5c8 b debug=0A=
1040d5cc b keeplocked=0A=
1040d5d0 b autoeject=0A=
1040d5d4 b check_media_type=0A=
1040d5d8 b topCdromPtr=0A=
1040d5dc b cdrom_sysctl_settings=0A=
1040d9d8 b cdrom_sysctl_header=0A=
1040d9dc b input_no___0=0A=
1040d9e0 b input_table=0A=
1040da00 b proc_bus_input_dir=0A=
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1040da08 b input_fileops=0A=
1040da74 b mousedev_table=0A=
1040daf4 b mousedev_mix=0A=
1040db90 b psaux_registered=0A=
1040db94 b evdev_table=0A=
1040dc14 b atkbd_scroll=0A=
1040dc18 b atkbd_reset=0A=
1040dc1c b atkbd_softrepeat=0A=
1040dc20 b atkbd_extra=0A=
1040dc24 b hwmon_idr=0A=
1040dc34 b hwmon_class=0A=
1040dc38 b per_cpu__sockets_in_use=0A=
1040dc3c b br_ioctl_hook=0A=
1040dc40 b warned___0=0A=
1040dc44 b net_families=0A=
1040dcc4 b vlan_ioctl_hook=0A=
1040dcc8 b dlci_ioctl_hook=0A=
1040dccc b proto_list_lock=0A=
1040dccc b warned___3=0A=
1040dcd0 b warncomm___4=0A=
1040dce0 b elist=0A=
1040dce0 b est_lock=0A=
1040dd88 B dev_base=0A=
1040dd8c B netdev_nit=0A=
1040dd90 b net_todo_list_lock=0A=
1040dd90 b netstamp_needed=0A=
1040dd94 b ifindex___0=0A=
1040dd94 b ptype_lock=0A=
1040dd98 b ptype_base=0A=
1040de18 b ptype_all=0A=
1040de20 b dev_name_head=0A=
1040e220 b dev_index_head=0A=
1040e620 b netdev_chain=0A=
1040e624 b dev_boot_setup=0A=
1040e724 b gifconf_list=0A=
1040e7a4 b dst_garbage_list=0A=
1040e7a4 b dst_lock=0A=
1040e7a8 b dst_gc_timer_expires=0A=
1040e7ac b neigh_tables=0A=
1040e7ac b neigh_tbl_lock=0A=
1040e7b0 B rtnl=0A=
1040e7b4 B rtnetlink_links=0A=
1040e834 b rta_buf=0A=
1040e838 b rtattr_max=0A=
1040e83c b per_cpu__net_rand_state=0A=
1040e848 b linkwatch_flags=0A=
1040e848 b lweventlist_lock=0A=
1040e84c b linkwatch_nextevent=0A=
1040e850 b singleevent=0A=
1040e85c b nl_table_users=0A=
1040e860 b nl_table=0A=
1040e860 b nl_table_lock=0A=
1040e864 b netlink_chain=0A=
1040e868 b id_gen_idx___0=0A=
1040e86c b family_ht=0A=
1040e8ec b rover___5=0A=
1040e8ec b rt_flush_lock=0A=
1040e8f0 b last_gc___2=0A=
1040e8f4 b rover___3=0A=
1040e8f8 b equilibrium___4=0A=
1040e8fc b ip_fallback_id___7=0A=
1040e8fc b ip_fb_id_lock___6=0A=
1040e8fc b rt_peer_lock___8=0A=
1040e900 b ip_rt_max_size=0A=
1040e904 b rt_deadline=0A=
1040e908 b rt_flush_timer=0A=
1040e920 b rt_periodic_timer=0A=
1040e938 b rt_secret_timer=0A=
1040e950 b rt_hash_table=0A=
1040e954 b rt_hash_mask=0A=
1040e958 b rt_hash_log=0A=
1040e95c b rt_hash_rnd=0A=
1040e960 b rt_cache_stat=0A=
1040e964 b flush_delay=0A=
1040e968 b peer_pool_lock=0A=
1040e968 b peer_total=0A=
1040e96c b inet_peer_unused_head=0A=
1040e970 B inet_protos=0A=
1040ed70 b inet_proto_lock=0A=
1040ed70 b ipfrag_lock=0A=
1040ed70 b ipq_hash=0A=
1040ee70 b ipfrag_hash_rnd=0A=
1040ee74 b ipfrag_secret_timer=0A=
1040ee8c B ip_ra_chain=0A=
1040ee90 b hint___0=0A=
1040ee94 B sysctl_tcp_mem=0A=
1040eea0 B tcp_memory_allocated=0A=
1040eea4 B tcp_sockets_allocated=0A=
1040eea8 B tcp_memory_pressure=0A=
1040eeac B sysctl_tcp_stdurg=0A=
1040eeb0 B sysctl_tcp_rfc1337=0A=
1040eeb4 B sysctl_tcp_ecn=0A=
1040eeb8 B sysctl_tcp_frto=0A=
1040eebc B sysctl_tcp_nometrics_save=0A=
1040eec0 B sysctl_tcp_orphan_retries=0A=
1040eec4 B sysctl_tcp_tw_reuse=0A=
1040eec8 B sysctl_tcp_low_latency=0A=
1040eecc b tcp_socket=0A=
1040eed0 b tcp4_seq_fops=0A=
1040ef3c B sysctl_tcp_abort_on_overflow=0A=
1040ef40 B raw_v4_htable=0A=
1040ef40 b tcp_cong_list_lock=0A=
1040f340 b complained___2=0A=
1040f344 B udp_hash=0A=
1040f544 B udp_port_rover=0A=
1040f548 b udp4_seq_fops=0A=
1040f5b4 B sysctl_icmp_echo_ignore_all=0A=
1040f5b8 B sysctl_icmp_ignore_bogus_error_responses=0A=
1040f5bc B sysctl_icmp_errors_use_inbound_ifaddr=0A=
1040f5c0 b per_cpu____icmp_socket=0A=
1040f5c4 b inetaddr_chain=0A=
1040f5c8 B sysctl_ip_nonlocal_bind=0A=
1040f5cc B sysctl_ip_dynaddr=0A=
1040f5d0 b inetsw=0A=
1040f5d0 b inetsw_lock=0A=
1040f628 B ipv4_config=0A=
1040f634 b zero=0A=
1040f638 B ip_fib_local_table=0A=
1040f63c B ip_fib_main_table=0A=
1040f640 b fib_info_hash=0A=
1040f640 b fib_info_lock=0A=
1040f644 b fib_info_laddrhash=0A=
1040f648 b fib_hash_size=0A=
1040f64c b fib_info_cnt=0A=
1040f650 b fib_info_devhash=0A=
1040fa50 b fib_hash_genid=0A=
1040fa50 b fib_hash_lock=0A=
1040fa54 B unix_socket_table=0A=
1040fe58 b unix_nr_socks=0A=
1040fe5c b unix_sysctl_header=0A=
1040fe60 b packet_sklist=0A=
1040fe64 b packet_sklist_lock=0A=
1040fe64 b packet_socks_nr=0A=
1040fe68 A __bss_stop=0A=
1040fe68 A _end=0A=

------=_NextPart_000_0076_01C621C1.F67DEB90
Content-Type: application/octet-stream;
	name="config-2.6.15.1-pa4"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="config-2.6.15.1-pa4"

#=0A=
# Automatically generated make config: don't edit=0A=
# Linux kernel version: 2.6.15.1-pa4=0A=
# Sun Jan 22 02:57:32 2006=0A=
#=0A=
CONFIG_PARISC=3Dy=0A=
CONFIG_MMU=3Dy=0A=
CONFIG_STACK_GROWSUP=3Dy=0A=
CONFIG_RWSEM_GENERIC_SPINLOCK=3Dy=0A=
CONFIG_GENERIC_CALIBRATE_DELAY=3Dy=0A=
CONFIG_GENERIC_HARDIRQS=3Dy=0A=
CONFIG_GENERIC_IRQ_PROBE=3Dy=0A=
=0A=
#=0A=
# Code maturity level options=0A=
#=0A=
CONFIG_EXPERIMENTAL=3Dy=0A=
CONFIG_CLEAN_COMPILE=3Dy=0A=
CONFIG_BROKEN_ON_SMP=3Dy=0A=
CONFIG_INIT_ENV_ARG_LIMIT=3D32=0A=
=0A=
#=0A=
# General setup=0A=
#=0A=
CONFIG_LOCALVERSION=3D"-32"=0A=
# CONFIG_LOCALVERSION_AUTO is not set=0A=
CONFIG_SWAP=3Dy=0A=
CONFIG_SYSVIPC=3Dy=0A=
CONFIG_POSIX_MQUEUE=3Dy=0A=
# CONFIG_BSD_PROCESS_ACCT is not set=0A=
CONFIG_SYSCTL=3Dy=0A=
# CONFIG_AUDIT is not set=0A=
CONFIG_HOTPLUG=3Dy=0A=
CONFIG_KOBJECT_UEVENT=3Dy=0A=
CONFIG_IKCONFIG=3Dy=0A=
CONFIG_IKCONFIG_PROC=3Dy=0A=
CONFIG_INITRAMFS_SOURCE=3D""=0A=
CONFIG_CC_OPTIMIZE_FOR_SIZE=3Dy=0A=
# CONFIG_EMBEDDED is not set=0A=
CONFIG_KALLSYMS=3Dy=0A=
# CONFIG_KALLSYMS_EXTRA_PASS is not set=0A=
CONFIG_PRINTK=3Dy=0A=
CONFIG_BUG=3Dy=0A=
CONFIG_BASE_FULL=3Dy=0A=
CONFIG_FUTEX=3Dy=0A=
CONFIG_EPOLL=3Dy=0A=
CONFIG_SHMEM=3Dy=0A=
CONFIG_CC_ALIGN_FUNCTIONS=3D0=0A=
CONFIG_CC_ALIGN_LABELS=3D0=0A=
CONFIG_CC_ALIGN_LOOPS=3D0=0A=
CONFIG_CC_ALIGN_JUMPS=3D0=0A=
# CONFIG_TINY_SHMEM is not set=0A=
CONFIG_BASE_SMALL=3D0=0A=
=0A=
#=0A=
# Loadable module support=0A=
#=0A=
CONFIG_MODULES=3Dy=0A=
CONFIG_MODULE_UNLOAD=3Dy=0A=
# CONFIG_MODULE_FORCE_UNLOAD is not set=0A=
CONFIG_OBSOLETE_MODPARM=3Dy=0A=
# CONFIG_MODVERSIONS is not set=0A=
# CONFIG_MODULE_SRCVERSION_ALL is not set=0A=
CONFIG_KMOD=3Dy=0A=
=0A=
#=0A=
# Block layer=0A=
#=0A=
=0A=
#=0A=
# IO Schedulers=0A=
#=0A=
CONFIG_IOSCHED_NOOP=3Dy=0A=
CONFIG_IOSCHED_AS=3Dy=0A=
CONFIG_IOSCHED_DEADLINE=3Dy=0A=
CONFIG_IOSCHED_CFQ=3Dy=0A=
# CONFIG_DEFAULT_AS is not set=0A=
# CONFIG_DEFAULT_DEADLINE is not set=0A=
# CONFIG_DEFAULT_CFQ is not set=0A=
CONFIG_DEFAULT_NOOP=3Dy=0A=
CONFIG_DEFAULT_IOSCHED=3D"noop"=0A=
=0A=
#=0A=
# Processor type and features=0A=
#=0A=
# CONFIG_PA7000 is not set=0A=
# CONFIG_PA7100LC is not set=0A=
# CONFIG_PA7200 is not set=0A=
# CONFIG_PA7300LC is not set=0A=
CONFIG_PA8X00=3Dy=0A=
CONFIG_PA20=3Dy=0A=
CONFIG_PREFETCH=3Dy=0A=
# CONFIG_64BIT is not set=0A=
# CONFIG_SMP is not set=0A=
# CONFIG_HZ_100 is not set=0A=
CONFIG_HZ_250=3Dy=0A=
# CONFIG_HZ_1000 is not set=0A=
CONFIG_HZ=3D250=0A=
CONFIG_SELECT_MEMORY_MODEL=3Dy=0A=
CONFIG_FLATMEM_MANUAL=3Dy=0A=
# CONFIG_DISCONTIGMEM_MANUAL is not set=0A=
# CONFIG_SPARSEMEM_MANUAL is not set=0A=
CONFIG_FLATMEM=3Dy=0A=
CONFIG_FLAT_NODE_MEM_MAP=3Dy=0A=
# CONFIG_SPARSEMEM_STATIC is not set=0A=
CONFIG_SPLIT_PTLOCK_CPUS=3D4=0A=
# CONFIG_PREEMPT is not set=0A=
# CONFIG_HPUX is not set=0A=
=0A=
#=0A=
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)=0A=
#=0A=
CONFIG_GSC=3Dy=0A=
CONFIG_HPPB=3Dy=0A=
CONFIG_IOMMU_CCIO=3Dy=0A=
CONFIG_GSC_LASI=3Dy=0A=
CONFIG_GSC_WAX=3Dy=0A=
# CONFIG_EISA is not set=0A=
CONFIG_PCI=3Dy=0A=
CONFIG_PCI_LEGACY_PROC=3Dy=0A=
CONFIG_GSC_DINO=3Dy=0A=
CONFIG_PCI_LBA=3Dy=0A=
CONFIG_IOSAPIC=3Dy=0A=
CONFIG_IOMMU_SBA=3Dy=0A=
=0A=
#=0A=
# PCCARD (PCMCIA/CardBus) support=0A=
#=0A=
# CONFIG_PCCARD is not set=0A=
=0A=
#=0A=
# PCI Hotplug Support=0A=
#=0A=
# CONFIG_HOTPLUG_PCI is not set=0A=
=0A=
#=0A=
# PA-RISC specific drivers=0A=
#=0A=
# CONFIG_SUPERIO is not set=0A=
CONFIG_CHASSIS_LCD_LED=3Dy=0A=
# CONFIG_PDC_CHASSIS is not set=0A=
CONFIG_PDC_STABLE=3Dy=0A=
=0A=
#=0A=
# Executable file formats=0A=
#=0A=
CONFIG_BINFMT_ELF=3Dy=0A=
# CONFIG_BINFMT_MISC is not set=0A=
=0A=
#=0A=
# Networking=0A=
#=0A=
CONFIG_NET=3Dy=0A=
=0A=
#=0A=
# Networking options=0A=
#=0A=
CONFIG_PACKET=3Dy=0A=
CONFIG_PACKET_MMAP=3Dy=0A=
CONFIG_UNIX=3Dy=0A=
# CONFIG_NET_KEY is not set=0A=
CONFIG_INET=3Dy=0A=
# CONFIG_IP_MULTICAST is not set=0A=
# CONFIG_IP_ADVANCED_ROUTER is not set=0A=
CONFIG_IP_FIB_HASH=3Dy=0A=
# CONFIG_IP_PNP is not set=0A=
# CONFIG_NET_IPIP is not set=0A=
# CONFIG_NET_IPGRE is not set=0A=
# CONFIG_ARPD is not set=0A=
# CONFIG_SYN_COOKIES is not set=0A=
# CONFIG_INET_AH is not set=0A=
# CONFIG_INET_ESP is not set=0A=
# CONFIG_INET_IPCOMP is not set=0A=
# CONFIG_INET_TUNNEL is not set=0A=
# CONFIG_INET_DIAG is not set=0A=
# CONFIG_TCP_CONG_ADVANCED is not set=0A=
CONFIG_TCP_CONG_BIC=3Dy=0A=
# CONFIG_IPV6 is not set=0A=
# CONFIG_NETFILTER is not set=0A=
=0A=
#=0A=
# DCCP Configuration (EXPERIMENTAL)=0A=
#=0A=
# CONFIG_IP_DCCP is not set=0A=
=0A=
#=0A=
# SCTP Configuration (EXPERIMENTAL)=0A=
#=0A=
# CONFIG_IP_SCTP is not set=0A=
# CONFIG_ATM is not set=0A=
# CONFIG_BRIDGE is not set=0A=
# CONFIG_VLAN_8021Q is not set=0A=
# CONFIG_DECNET is not set=0A=
# CONFIG_LLC2 is not set=0A=
# CONFIG_IPX is not set=0A=
# CONFIG_ATALK is not set=0A=
# CONFIG_X25 is not set=0A=
# CONFIG_LAPB is not set=0A=
# CONFIG_NET_DIVERT is not set=0A=
# CONFIG_ECONET is not set=0A=
# CONFIG_WAN_ROUTER is not set=0A=
=0A=
#=0A=
# QoS and/or fair queueing=0A=
#=0A=
# CONFIG_NET_SCHED is not set=0A=
=0A=
#=0A=
# Network testing=0A=
#=0A=
# CONFIG_NET_PKTGEN is not set=0A=
# CONFIG_HAMRADIO is not set=0A=
# CONFIG_IRDA is not set=0A=
# CONFIG_BT is not set=0A=
# CONFIG_IEEE80211 is not set=0A=
=0A=
#=0A=
# Device Drivers=0A=
#=0A=
=0A=
#=0A=
# Generic Driver Options=0A=
#=0A=
# CONFIG_STANDALONE is not set=0A=
# CONFIG_PREVENT_FIRMWARE_BUILD is not set=0A=
CONFIG_FW_LOADER=3Dy=0A=
=0A=
#=0A=
# Connector - unified userspace <-> kernelspace linker=0A=
#=0A=
# CONFIG_CONNECTOR is not set=0A=
=0A=
#=0A=
# Memory Technology Devices (MTD)=0A=
#=0A=
# CONFIG_MTD is not set=0A=
=0A=
#=0A=
# Parallel port support=0A=
#=0A=
CONFIG_PARPORT=3Dm=0A=
# CONFIG_PARPORT_PC is not set=0A=
CONFIG_PARPORT_NOT_PC=3Dy=0A=
CONFIG_PARPORT_GSC=3Dy=0A=
# CONFIG_PARPORT_1284 is not set=0A=
=0A=
#=0A=
# Plug and Play support=0A=
#=0A=
=0A=
#=0A=
# Block devices=0A=
#=0A=
# CONFIG_PARIDE is not set=0A=
# CONFIG_BLK_CPQ_DA is not set=0A=
# CONFIG_BLK_CPQ_CISS_DA is not set=0A=
# CONFIG_BLK_DEV_DAC960 is not set=0A=
# CONFIG_BLK_DEV_UMEM is not set=0A=
# CONFIG_BLK_DEV_COW_COMMON is not set=0A=
CONFIG_BLK_DEV_LOOP=3Dm=0A=
# CONFIG_BLK_DEV_CRYPTOLOOP is not set=0A=
# CONFIG_BLK_DEV_NBD is not set=0A=
# CONFIG_BLK_DEV_SX8 is not set=0A=
# CONFIG_BLK_DEV_UB is not set=0A=
CONFIG_BLK_DEV_RAM=3Dm=0A=
CONFIG_BLK_DEV_RAM_COUNT=3D16=0A=
CONFIG_BLK_DEV_RAM_SIZE=3D4096=0A=
# CONFIG_CDROM_PKTCDVD is not set=0A=
# CONFIG_ATA_OVER_ETH is not set=0A=
=0A=
#=0A=
# ATA/ATAPI/MFM/RLL support=0A=
#=0A=
# CONFIG_IDE is not set=0A=
=0A=
#=0A=
# SCSI device support=0A=
#=0A=
# CONFIG_RAID_ATTRS is not set=0A=
CONFIG_SCSI=3Dy=0A=
CONFIG_SCSI_PROC_FS=3Dy=0A=
=0A=
#=0A=
# SCSI support type (disk, tape, CD-ROM)=0A=
#=0A=
CONFIG_BLK_DEV_SD=3Dy=0A=
CONFIG_CHR_DEV_ST=3Dy=0A=
# CONFIG_CHR_DEV_OSST is not set=0A=
CONFIG_BLK_DEV_SR=3Dy=0A=
# CONFIG_BLK_DEV_SR_VENDOR is not set=0A=
CONFIG_CHR_DEV_SG=3Dy=0A=
# CONFIG_CHR_DEV_SCH is not set=0A=
=0A=
#=0A=
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs=0A=
#=0A=
# CONFIG_SCSI_MULTI_LUN is not set=0A=
CONFIG_SCSI_CONSTANTS=3Dy=0A=
# CONFIG_SCSI_LOGGING is not set=0A=
=0A=
#=0A=
# SCSI Transport Attributes=0A=
#=0A=
CONFIG_SCSI_SPI_ATTRS=3Dy=0A=
# CONFIG_SCSI_FC_ATTRS is not set=0A=
# CONFIG_SCSI_ISCSI_ATTRS is not set=0A=
# CONFIG_SCSI_SAS_ATTRS is not set=0A=
=0A=
#=0A=
# SCSI low-level drivers=0A=
#=0A=
# CONFIG_ISCSI_TCP is not set=0A=
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set=0A=
# CONFIG_SCSI_3W_9XXX is not set=0A=
# CONFIG_SCSI_ACARD is not set=0A=
# CONFIG_SCSI_AACRAID is not set=0A=
# CONFIG_SCSI_AIC7XXX is not set=0A=
# CONFIG_SCSI_AIC7XXX_OLD is not set=0A=
# CONFIG_SCSI_AIC79XX is not set=0A=
# CONFIG_SCSI_DPT_I2O is not set=0A=
# CONFIG_MEGARAID_NEWGEN is not set=0A=
# CONFIG_MEGARAID_LEGACY is not set=0A=
# CONFIG_MEGARAID_SAS is not set=0A=
# CONFIG_SCSI_SATA is not set=0A=
# CONFIG_SCSI_DMX3191D is not set=0A=
# CONFIG_SCSI_FUTURE_DOMAIN is not set=0A=
# CONFIG_SCSI_IPS is not set=0A=
# CONFIG_SCSI_INITIO is not set=0A=
# CONFIG_SCSI_INIA100 is not set=0A=
# CONFIG_SCSI_PPA is not set=0A=
# CONFIG_SCSI_IMM is not set=0A=
CONFIG_SCSI_LASI700=3Dy=0A=
CONFIG_53C700_LE_ON_BE=3Dy=0A=
CONFIG_SCSI_SYM53C8XX_2=3Dy=0A=
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=3D1=0A=
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=3D16=0A=
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=3D64=0A=
CONFIG_SCSI_SYM53C8XX_MMIO=3Dy=0A=
# CONFIG_SCSI_IPR is not set=0A=
CONFIG_SCSI_ZALON=3Dy=0A=
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=3D8=0A=
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=3D32=0A=
CONFIG_SCSI_NCR53C8XX_SYNC=3D80=0A=
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set=0A=
# CONFIG_SCSI_QLOGIC_FC is not set=0A=
# CONFIG_SCSI_QLOGIC_1280 is not set=0A=
CONFIG_SCSI_QLA2XXX=3Dy=0A=
# CONFIG_SCSI_QLA21XX is not set=0A=
# CONFIG_SCSI_QLA22XX is not set=0A=
# CONFIG_SCSI_QLA2300 is not set=0A=
# CONFIG_SCSI_QLA2322 is not set=0A=
# CONFIG_SCSI_QLA6312 is not set=0A=
# CONFIG_SCSI_QLA24XX is not set=0A=
# CONFIG_SCSI_LPFC is not set=0A=
# CONFIG_SCSI_DC395x is not set=0A=
# CONFIG_SCSI_DC390T is not set=0A=
# CONFIG_SCSI_NSP32 is not set=0A=
# CONFIG_SCSI_DEBUG is not set=0A=
=0A=
#=0A=
# Multi-device support (RAID and LVM)=0A=
#=0A=
# CONFIG_MD is not set=0A=
=0A=
#=0A=
# Fusion MPT device support=0A=
#=0A=
# CONFIG_FUSION is not set=0A=
# CONFIG_FUSION_SPI is not set=0A=
# CONFIG_FUSION_FC is not set=0A=
# CONFIG_FUSION_SAS is not set=0A=
=0A=
#=0A=
# IEEE 1394 (FireWire) support=0A=
#=0A=
# CONFIG_IEEE1394 is not set=0A=
=0A=
#=0A=
# I2O device support=0A=
#=0A=
# CONFIG_I2O is not set=0A=
=0A=
#=0A=
# Network device support=0A=
#=0A=
CONFIG_NETDEVICES=3Dy=0A=
# CONFIG_DUMMY is not set=0A=
# CONFIG_BONDING is not set=0A=
# CONFIG_EQUALIZER is not set=0A=
# CONFIG_TUN is not set=0A=
=0A=
#=0A=
# ARCnet devices=0A=
#=0A=
# CONFIG_ARCNET is not set=0A=
=0A=
#=0A=
# PHY device support=0A=
#=0A=
# CONFIG_PHYLIB is not set=0A=
=0A=
#=0A=
# Ethernet (10 or 100Mbit)=0A=
#=0A=
CONFIG_NET_ETHERNET=3Dy=0A=
# CONFIG_MII is not set=0A=
# CONFIG_LASI_82596 is not set=0A=
# CONFIG_HAPPYMEAL is not set=0A=
# CONFIG_SUNGEM is not set=0A=
# CONFIG_CASSINI is not set=0A=
# CONFIG_NET_VENDOR_3COM is not set=0A=
=0A=
#=0A=
# Tulip family network device support=0A=
#=0A=
CONFIG_NET_TULIP=3Dy=0A=
# CONFIG_DE2104X is not set=0A=
CONFIG_TULIP=3Dm=0A=
CONFIG_TULIP_MWI=3Dy=0A=
# CONFIG_TULIP_MMIO is not set=0A=
# CONFIG_TULIP_NAPI is not set=0A=
# CONFIG_DE4X5 is not set=0A=
# CONFIG_WINBOND_840 is not set=0A=
# CONFIG_DM9102 is not set=0A=
# CONFIG_ULI526X is not set=0A=
# CONFIG_HP100 is not set=0A=
# CONFIG_NET_PCI is not set=0A=
# CONFIG_NET_POCKET is not set=0A=
=0A=
#=0A=
# Ethernet (1000 Mbit)=0A=
#=0A=
# CONFIG_ACENIC is not set=0A=
# CONFIG_DL2K is not set=0A=
# CONFIG_E1000 is not set=0A=
# CONFIG_NS83820 is not set=0A=
# CONFIG_HAMACHI is not set=0A=
# CONFIG_YELLOWFIN is not set=0A=
# CONFIG_R8169 is not set=0A=
# CONFIG_SIS190 is not set=0A=
# CONFIG_SKGE is not set=0A=
# CONFIG_SK98LIN is not set=0A=
# CONFIG_TIGON3 is not set=0A=
# CONFIG_BNX2 is not set=0A=
=0A=
#=0A=
# Ethernet (10000 Mbit)=0A=
#=0A=
# CONFIG_CHELSIO_T1 is not set=0A=
# CONFIG_IXGB is not set=0A=
# CONFIG_S2IO is not set=0A=
=0A=
#=0A=
# Token Ring devices=0A=
#=0A=
# CONFIG_TR is not set=0A=
=0A=
#=0A=
# Wireless LAN (non-hamradio)=0A=
#=0A=
# CONFIG_NET_RADIO is not set=0A=
=0A=
#=0A=
# Wan interfaces=0A=
#=0A=
# CONFIG_WAN is not set=0A=
# CONFIG_FDDI is not set=0A=
# CONFIG_HIPPI is not set=0A=
# CONFIG_PLIP is not set=0A=
# CONFIG_PPP is not set=0A=
# CONFIG_SLIP is not set=0A=
# CONFIG_NET_FC is not set=0A=
# CONFIG_SHAPER is not set=0A=
# CONFIG_NETCONSOLE is not set=0A=
# CONFIG_NETPOLL is not set=0A=
# CONFIG_NET_POLL_CONTROLLER is not set=0A=
=0A=
#=0A=
# ISDN subsystem=0A=
#=0A=
# CONFIG_ISDN is not set=0A=
=0A=
#=0A=
# Telephony Support=0A=
#=0A=
# CONFIG_PHONE is not set=0A=
=0A=
#=0A=
# Input device support=0A=
#=0A=
CONFIG_INPUT=3Dy=0A=
=0A=
#=0A=
# Userland interfaces=0A=
#=0A=
CONFIG_INPUT_MOUSEDEV=3Dy=0A=
CONFIG_INPUT_MOUSEDEV_PSAUX=3Dy=0A=
CONFIG_INPUT_MOUSEDEV_SCREEN_X=3D1024=0A=
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=3D768=0A=
# CONFIG_INPUT_JOYDEV is not set=0A=
# CONFIG_INPUT_TSDEV is not set=0A=
CONFIG_INPUT_EVDEV=3Dy=0A=
# CONFIG_INPUT_EVBUG is not set=0A=
=0A=
#=0A=
# Input Device Drivers=0A=
#=0A=
CONFIG_INPUT_KEYBOARD=3Dy=0A=
CONFIG_KEYBOARD_ATKBD=3Dy=0A=
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=3Dy=0A=
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set=0A=
# CONFIG_KEYBOARD_SUNKBD is not set=0A=
# CONFIG_KEYBOARD_LKKBD is not set=0A=
# CONFIG_KEYBOARD_XTKBD is not set=0A=
# CONFIG_KEYBOARD_NEWTON is not set=0A=
# CONFIG_KEYBOARD_HIL_OLD is not set=0A=
# CONFIG_KEYBOARD_HIL is not set=0A=
CONFIG_INPUT_MOUSE=3Dy=0A=
# CONFIG_MOUSE_PS2 is not set=0A=
# CONFIG_MOUSE_SERIAL is not set=0A=
# CONFIG_MOUSE_VSXXXAA is not set=0A=
# CONFIG_MOUSE_HIL is not set=0A=
# CONFIG_INPUT_JOYSTICK is not set=0A=
CONFIG_INPUT_TOUCHSCREEN=3Dy=0A=
# CONFIG_TOUCHSCREEN_GUNZE is not set=0A=
# CONFIG_TOUCHSCREEN_ELO is not set=0A=
# CONFIG_TOUCHSCREEN_MTOUCH is not set=0A=
# CONFIG_TOUCHSCREEN_MK712 is not set=0A=
# CONFIG_INPUT_MISC is not set=0A=
=0A=
#=0A=
# Hardware I/O ports=0A=
#=0A=
CONFIG_SERIO=3Dy=0A=
# CONFIG_SERIO_SERPORT is not set=0A=
# CONFIG_SERIO_PARKBD is not set=0A=
CONFIG_SERIO_GSCPS2=3Dy=0A=
# CONFIG_HP_SDC is not set=0A=
# CONFIG_SERIO_PCIPS2 is not set=0A=
CONFIG_SERIO_LIBPS2=3Dy=0A=
# CONFIG_SERIO_RAW is not set=0A=
# CONFIG_GAMEPORT is not set=0A=
=0A=
#=0A=
# Character devices=0A=
#=0A=
CONFIG_VT=3Dy=0A=
CONFIG_VT_CONSOLE=3Dy=0A=
CONFIG_HW_CONSOLE=3Dy=0A=
# CONFIG_SERIAL_NONSTANDARD is not set=0A=
=0A=
#=0A=
# Serial drivers=0A=
#=0A=
# CONFIG_SERIAL_8250 is not set=0A=
=0A=
#=0A=
# Non-8250 serial port support=0A=
#=0A=
# CONFIG_SERIAL_MUX is not set=0A=
# CONFIG_PDC_CONSOLE is not set=0A=
# CONFIG_SERIAL_JSM is not set=0A=
CONFIG_UNIX98_PTYS=3Dy=0A=
CONFIG_LEGACY_PTYS=3Dy=0A=
CONFIG_LEGACY_PTY_COUNT=3D256=0A=
CONFIG_PRINTER=3Dm=0A=
# CONFIG_LP_CONSOLE is not set=0A=
# CONFIG_PPDEV is not set=0A=
# CONFIG_TIPAR is not set=0A=
=0A=
#=0A=
# IPMI=0A=
#=0A=
# CONFIG_IPMI_HANDLER is not set=0A=
=0A=
#=0A=
# Watchdog Cards=0A=
#=0A=
CONFIG_WATCHDOG=3Dy=0A=
# CONFIG_WATCHDOG_NOWAYOUT is not set=0A=
=0A=
#=0A=
# Watchdog Device Drivers=0A=
#=0A=
# CONFIG_SOFT_WATCHDOG is not set=0A=
=0A=
#=0A=
# PCI-based Watchdog Cards=0A=
#=0A=
# CONFIG_PCIPCWATCHDOG is not set=0A=
# CONFIG_WDTPCI is not set=0A=
=0A=
#=0A=
# USB-based Watchdog Cards=0A=
#=0A=
# CONFIG_USBPCWATCHDOG is not set=0A=
CONFIG_GEN_RTC=3Dy=0A=
CONFIG_GEN_RTC_X=3Dy=0A=
# CONFIG_DTLK is not set=0A=
# CONFIG_R3964 is not set=0A=
# CONFIG_APPLICOM is not set=0A=
=0A=
#=0A=
# Ftape, the floppy tape device driver=0A=
#=0A=
# CONFIG_DRM is not set=0A=
# CONFIG_RAW_DRIVER is not set=0A=
=0A=
#=0A=
# TPM devices=0A=
#=0A=
# CONFIG_TCG_TPM is not set=0A=
# CONFIG_TELCLOCK is not set=0A=
=0A=
#=0A=
# I2C support=0A=
#=0A=
# CONFIG_I2C is not set=0A=
=0A=
#=0A=
# Dallas's 1-wire bus=0A=
#=0A=
# CONFIG_W1 is not set=0A=
=0A=
#=0A=
# Hardware Monitoring support=0A=
#=0A=
CONFIG_HWMON=3Dy=0A=
# CONFIG_HWMON_VID is not set=0A=
# CONFIG_HWMON_DEBUG_CHIP is not set=0A=
=0A=
#=0A=
# Misc devices=0A=
#=0A=
=0A=
#=0A=
# Multimedia Capabilities Port drivers=0A=
#=0A=
=0A=
#=0A=
# Multimedia devices=0A=
#=0A=
# CONFIG_VIDEO_DEV is not set=0A=
=0A=
#=0A=
# Digital Video Broadcasting Devices=0A=
#=0A=
# CONFIG_DVB is not set=0A=
=0A=
#=0A=
# Graphics support=0A=
#=0A=
CONFIG_FB=3Dy=0A=
CONFIG_FB_CFB_FILLRECT=3Dy=0A=
CONFIG_FB_CFB_COPYAREA=3Dy=0A=
CONFIG_FB_CFB_IMAGEBLIT=3Dy=0A=
# CONFIG_FB_MACMODES is not set=0A=
# CONFIG_FB_MODE_HELPERS is not set=0A=
# CONFIG_FB_TILEBLITTING is not set=0A=
# CONFIG_FB_CIRRUS is not set=0A=
# CONFIG_FB_PM2 is not set=0A=
# CONFIG_FB_CYBER2000 is not set=0A=
# CONFIG_FB_ASILIANT is not set=0A=
# CONFIG_FB_IMSTT is not set=0A=
CONFIG_FB_STI=3Dy=0A=
# CONFIG_FB_S1D13XXX is not set=0A=
# CONFIG_FB_NVIDIA is not set=0A=
# CONFIG_FB_RIVA is not set=0A=
# CONFIG_FB_MATROX is not set=0A=
# CONFIG_FB_RADEON_OLD is not set=0A=
# CONFIG_FB_RADEON is not set=0A=
# CONFIG_FB_ATY128 is not set=0A=
# CONFIG_FB_ATY is not set=0A=
# CONFIG_FB_SAVAGE is not set=0A=
# CONFIG_FB_SIS is not set=0A=
# CONFIG_FB_NEOMAGIC is not set=0A=
# CONFIG_FB_KYRO is not set=0A=
# CONFIG_FB_3DFX is not set=0A=
# CONFIG_FB_VOODOO1 is not set=0A=
# CONFIG_FB_CYBLA is not set=0A=
# CONFIG_FB_TRIDENT is not set=0A=
# CONFIG_FB_VIRTUAL is not set=0A=
=0A=
#=0A=
# Console display driver support=0A=
#=0A=
CONFIG_DUMMY_CONSOLE=3Dy=0A=
CONFIG_DUMMY_CONSOLE_COLUMNS=3D160=0A=
CONFIG_DUMMY_CONSOLE_ROWS=3D64=0A=
CONFIG_FRAMEBUFFER_CONSOLE=3Dy=0A=
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set=0A=
CONFIG_STI_CONSOLE=3Dy=0A=
CONFIG_FONTS=3Dy=0A=
# CONFIG_FONT_8x8 is not set=0A=
CONFIG_FONT_8x16=3Dy=0A=
# CONFIG_FONT_6x11 is not set=0A=
# CONFIG_FONT_7x14 is not set=0A=
# CONFIG_FONT_PEARL_8x8 is not set=0A=
# CONFIG_FONT_ACORN_8x8 is not set=0A=
# CONFIG_FONT_MINI_4x6 is not set=0A=
# CONFIG_FONT_SUN8x16 is not set=0A=
# CONFIG_FONT_SUN12x22 is not set=0A=
# CONFIG_FONT_10x18 is not set=0A=
=0A=
#=0A=
# Logo configuration=0A=
#=0A=
# CONFIG_LOGO is not set=0A=
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set=0A=
=0A=
#=0A=
# Sound=0A=
#=0A=
# CONFIG_SOUND is not set=0A=
=0A=
#=0A=
# USB support=0A=
#=0A=
CONFIG_USB_ARCH_HAS_HCD=3Dy=0A=
CONFIG_USB_ARCH_HAS_OHCI=3Dy=0A=
CONFIG_USB=3Dm=0A=
# CONFIG_USB_DEBUG is not set=0A=
=0A=
#=0A=
# Miscellaneous USB options=0A=
#=0A=
CONFIG_USB_DEVICEFS=3Dy=0A=
# CONFIG_USB_BANDWIDTH is not set=0A=
# CONFIG_USB_DYNAMIC_MINORS is not set=0A=
# CONFIG_USB_OTG is not set=0A=
=0A=
#=0A=
# USB Host Controller Drivers=0A=
#=0A=
CONFIG_USB_EHCI_HCD=3Dm=0A=
# CONFIG_USB_EHCI_SPLIT_ISO is not set=0A=
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set=0A=
# CONFIG_USB_ISP116X_HCD is not set=0A=
CONFIG_USB_OHCI_HCD=3Dm=0A=
# CONFIG_USB_OHCI_BIG_ENDIAN is not set=0A=
CONFIG_USB_OHCI_LITTLE_ENDIAN=3Dy=0A=
# CONFIG_USB_UHCI_HCD is not set=0A=
# CONFIG_USB_SL811_HCD is not set=0A=
=0A=
#=0A=
# USB Device Class drivers=0A=
#=0A=
# CONFIG_USB_ACM is not set=0A=
CONFIG_USB_PRINTER=3Dm=0A=
=0A=
#=0A=
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'=0A=
#=0A=
=0A=
#=0A=
# may also be needed; see USB_STORAGE Help for more information=0A=
#=0A=
CONFIG_USB_STORAGE=3Dm=0A=
CONFIG_USB_STORAGE_DEBUG=3Dy=0A=
# CONFIG_USB_STORAGE_DATAFAB is not set=0A=
# CONFIG_USB_STORAGE_FREECOM is not set=0A=
# CONFIG_USB_STORAGE_DPCM is not set=0A=
# CONFIG_USB_STORAGE_USBAT is not set=0A=
# CONFIG_USB_STORAGE_SDDR09 is not set=0A=
# CONFIG_USB_STORAGE_SDDR55 is not set=0A=
# CONFIG_USB_STORAGE_JUMPSHOT is not set=0A=
# CONFIG_USB_STORAGE_ONETOUCH is not set=0A=
=0A=
#=0A=
# USB Input Devices=0A=
#=0A=
CONFIG_USB_HID=3Dm=0A=
CONFIG_USB_HIDINPUT=3Dy=0A=
# CONFIG_HID_FF is not set=0A=
# CONFIG_USB_HIDDEV is not set=0A=
=0A=
#=0A=
# USB HID Boot Protocol drivers=0A=
#=0A=
# CONFIG_USB_KBD is not set=0A=
# CONFIG_USB_MOUSE is not set=0A=
# CONFIG_USB_AIPTEK is not set=0A=
# CONFIG_USB_WACOM is not set=0A=
# CONFIG_USB_ACECAD is not set=0A=
# CONFIG_USB_KBTAB is not set=0A=
# CONFIG_USB_POWERMATE is not set=0A=
# CONFIG_USB_MTOUCH is not set=0A=
# CONFIG_USB_ITMTOUCH is not set=0A=
# CONFIG_USB_EGALAX is not set=0A=
# CONFIG_USB_YEALINK is not set=0A=
# CONFIG_USB_XPAD is not set=0A=
# CONFIG_USB_ATI_REMOTE is not set=0A=
# CONFIG_USB_KEYSPAN_REMOTE is not set=0A=
# CONFIG_USB_APPLETOUCH is not set=0A=
=0A=
#=0A=
# USB Imaging devices=0A=
#=0A=
# CONFIG_USB_MDC800 is not set=0A=
# CONFIG_USB_MICROTEK is not set=0A=
=0A=
#=0A=
# USB Multimedia devices=0A=
#=0A=
# CONFIG_USB_DABUSB is not set=0A=
=0A=
#=0A=
# Video4Linux support is needed for USB Multimedia device support=0A=
#=0A=
=0A=
#=0A=
# USB Network Adapters=0A=
#=0A=
# CONFIG_USB_CATC is not set=0A=
# CONFIG_USB_KAWETH is not set=0A=
# CONFIG_USB_PEGASUS is not set=0A=
# CONFIG_USB_RTL8150 is not set=0A=
# CONFIG_USB_USBNET is not set=0A=
# CONFIG_USB_MON is not set=0A=
=0A=
#=0A=
# USB port drivers=0A=
#=0A=
# CONFIG_USB_USS720 is not set=0A=
=0A=
#=0A=
# USB Serial Converter support=0A=
#=0A=
# CONFIG_USB_SERIAL is not set=0A=
=0A=
#=0A=
# USB Miscellaneous drivers=0A=
#=0A=
# CONFIG_USB_EMI62 is not set=0A=
# CONFIG_USB_EMI26 is not set=0A=
# CONFIG_USB_AUERSWALD is not set=0A=
# CONFIG_USB_RIO500 is not set=0A=
# CONFIG_USB_LEGOTOWER is not set=0A=
# CONFIG_USB_LCD is not set=0A=
# CONFIG_USB_LED is not set=0A=
# CONFIG_USB_CYTHERM is not set=0A=
# CONFIG_USB_PHIDGETKIT is not set=0A=
# CONFIG_USB_PHIDGETSERVO is not set=0A=
# CONFIG_USB_IDMOUSE is not set=0A=
# CONFIG_USB_SISUSBVGA is not set=0A=
# CONFIG_USB_LD is not set=0A=
# CONFIG_USB_TEST is not set=0A=
=0A=
#=0A=
# USB DSL modem support=0A=
#=0A=
=0A=
#=0A=
# USB Gadget Support=0A=
#=0A=
# CONFIG_USB_GADGET is not set=0A=
=0A=
#=0A=
# MMC/SD Card support=0A=
#=0A=
# CONFIG_MMC is not set=0A=
=0A=
#=0A=
# InfiniBand support=0A=
#=0A=
# CONFIG_INFINIBAND is not set=0A=
=0A=
#=0A=
# SN Devices=0A=
#=0A=
=0A=
#=0A=
# File systems=0A=
#=0A=
# CONFIG_EXT2_FS is not set=0A=
CONFIG_EXT3_FS=3Dy=0A=
# CONFIG_EXT3_FS_XATTR is not set=0A=
CONFIG_JBD=3Dy=0A=
# CONFIG_JBD_DEBUG is not set=0A=
CONFIG_REISERFS_FS=3Dy=0A=
# CONFIG_REISERFS_CHECK is not set=0A=
# CONFIG_REISERFS_PROC_INFO is not set=0A=
# CONFIG_REISERFS_FS_XATTR is not set=0A=
# CONFIG_JFS_FS is not set=0A=
CONFIG_FS_POSIX_ACL=3Dy=0A=
# CONFIG_XFS_FS is not set=0A=
# CONFIG_MINIX_FS is not set=0A=
# CONFIG_ROMFS_FS is not set=0A=
CONFIG_INOTIFY=3Dy=0A=
# CONFIG_QUOTA is not set=0A=
CONFIG_DNOTIFY=3Dy=0A=
# CONFIG_AUTOFS_FS is not set=0A=
# CONFIG_AUTOFS4_FS is not set=0A=
# CONFIG_FUSE_FS is not set=0A=
=0A=
#=0A=
# CD-ROM/DVD Filesystems=0A=
#=0A=
CONFIG_ISO9660_FS=3Dy=0A=
CONFIG_JOLIET=3Dy=0A=
# CONFIG_ZISOFS is not set=0A=
# CONFIG_UDF_FS is not set=0A=
=0A=
#=0A=
# DOS/FAT/NT Filesystems=0A=
#=0A=
# CONFIG_MSDOS_FS is not set=0A=
# CONFIG_VFAT_FS is not set=0A=
# CONFIG_NTFS_FS is not set=0A=
=0A=
#=0A=
# Pseudo filesystems=0A=
#=0A=
CONFIG_PROC_FS=3Dy=0A=
CONFIG_PROC_KCORE=3Dy=0A=
CONFIG_SYSFS=3Dy=0A=
CONFIG_TMPFS=3Dy=0A=
# CONFIG_HUGETLB_PAGE is not set=0A=
CONFIG_RAMFS=3Dy=0A=
# CONFIG_RELAYFS_FS is not set=0A=
=0A=
#=0A=
# Miscellaneous filesystems=0A=
#=0A=
# CONFIG_ADFS_FS is not set=0A=
# CONFIG_AFFS_FS is not set=0A=
# CONFIG_HFS_FS is not set=0A=
# CONFIG_HFSPLUS_FS is not set=0A=
# CONFIG_BEFS_FS is not set=0A=
# CONFIG_BFS_FS is not set=0A=
# CONFIG_EFS_FS is not set=0A=
# CONFIG_CRAMFS is not set=0A=
# CONFIG_SQUASHFS is not set=0A=
# CONFIG_VXFS_FS is not set=0A=
# CONFIG_HPFS_FS is not set=0A=
# CONFIG_QNX4FS_FS is not set=0A=
# CONFIG_SYSV_FS is not set=0A=
# CONFIG_UFS_FS is not set=0A=
=0A=
#=0A=
# Network File Systems=0A=
#=0A=
CONFIG_NFS_FS=3Dm=0A=
CONFIG_NFS_V3=3Dy=0A=
CONFIG_NFS_V3_ACL=3Dy=0A=
CONFIG_NFS_V4=3Dy=0A=
# CONFIG_NFS_DIRECTIO is not set=0A=
CONFIG_NFSD=3Dm=0A=
CONFIG_NFSD_V2_ACL=3Dy=0A=
CONFIG_NFSD_V3=3Dy=0A=
CONFIG_NFSD_V3_ACL=3Dy=0A=
# CONFIG_NFSD_V4 is not set=0A=
CONFIG_NFSD_TCP=3Dy=0A=
CONFIG_LOCKD=3Dm=0A=
CONFIG_LOCKD_V4=3Dy=0A=
CONFIG_EXPORTFS=3Dm=0A=
CONFIG_NFS_ACL_SUPPORT=3Dm=0A=
CONFIG_NFS_COMMON=3Dy=0A=
CONFIG_SUNRPC=3Dm=0A=
CONFIG_SUNRPC_GSS=3Dm=0A=
CONFIG_RPCSEC_GSS_KRB5=3Dm=0A=
# CONFIG_RPCSEC_GSS_SPKM3 is not set=0A=
CONFIG_SMB_FS=3Dm=0A=
# CONFIG_SMB_NLS_DEFAULT is not set=0A=
CONFIG_CIFS=3Dm=0A=
# CONFIG_CIFS_STATS is not set=0A=
# CONFIG_CIFS_XATTR is not set=0A=
# CONFIG_CIFS_EXPERIMENTAL is not set=0A=
# CONFIG_NCP_FS is not set=0A=
# CONFIG_CODA_FS is not set=0A=
# CONFIG_AFS_FS is not set=0A=
CONFIG_9P_FS=3Dm=0A=
=0A=
#=0A=
# Partition Types=0A=
#=0A=
# CONFIG_PARTITION_ADVANCED is not set=0A=
CONFIG_MSDOS_PARTITION=3Dy=0A=
=0A=
#=0A=
# Native Language Support=0A=
#=0A=
CONFIG_NLS=3Dy=0A=
CONFIG_NLS_DEFAULT=3D"iso8859-1"=0A=
# CONFIG_NLS_CODEPAGE_437 is not set=0A=
# CONFIG_NLS_CODEPAGE_737 is not set=0A=
# CONFIG_NLS_CODEPAGE_775 is not set=0A=
# CONFIG_NLS_CODEPAGE_850 is not set=0A=
# CONFIG_NLS_CODEPAGE_852 is not set=0A=
# CONFIG_NLS_CODEPAGE_855 is not set=0A=
# CONFIG_NLS_CODEPAGE_857 is not set=0A=
# CONFIG_NLS_CODEPAGE_860 is not set=0A=
# CONFIG_NLS_CODEPAGE_861 is not set=0A=
# CONFIG_NLS_CODEPAGE_862 is not set=0A=
# CONFIG_NLS_CODEPAGE_863 is not set=0A=
# CONFIG_NLS_CODEPAGE_864 is not set=0A=
# CONFIG_NLS_CODEPAGE_865 is not set=0A=
# CONFIG_NLS_CODEPAGE_866 is not set=0A=
# CONFIG_NLS_CODEPAGE_869 is not set=0A=
# CONFIG_NLS_CODEPAGE_936 is not set=0A=
# CONFIG_NLS_CODEPAGE_950 is not set=0A=
# CONFIG_NLS_CODEPAGE_932 is not set=0A=
# CONFIG_NLS_CODEPAGE_949 is not set=0A=
# CONFIG_NLS_CODEPAGE_874 is not set=0A=
# CONFIG_NLS_ISO8859_8 is not set=0A=
# CONFIG_NLS_CODEPAGE_1250 is not set=0A=
# CONFIG_NLS_CODEPAGE_1251 is not set=0A=
# CONFIG_NLS_ASCII is not set=0A=
# CONFIG_NLS_ISO8859_1 is not set=0A=
# CONFIG_NLS_ISO8859_2 is not set=0A=
# CONFIG_NLS_ISO8859_3 is not set=0A=
# CONFIG_NLS_ISO8859_4 is not set=0A=
# CONFIG_NLS_ISO8859_5 is not set=0A=
# CONFIG_NLS_ISO8859_6 is not set=0A=
# CONFIG_NLS_ISO8859_7 is not set=0A=
# CONFIG_NLS_ISO8859_9 is not set=0A=
# CONFIG_NLS_ISO8859_13 is not set=0A=
# CONFIG_NLS_ISO8859_14 is not set=0A=
# CONFIG_NLS_ISO8859_15 is not set=0A=
# CONFIG_NLS_KOI8_R is not set=0A=
# CONFIG_NLS_KOI8_U is not set=0A=
# CONFIG_NLS_UTF8 is not set=0A=
=0A=
#=0A=
# Profiling support=0A=
#=0A=
# CONFIG_PROFILING is not set=0A=
=0A=
#=0A=
# Kernel hacking=0A=
#=0A=
# CONFIG_PRINTK_TIME is not set=0A=
# CONFIG_DEBUG_KERNEL is not set=0A=
CONFIG_LOG_BUF_SHIFT=3D14=0A=
=0A=
#=0A=
# Security options=0A=
#=0A=
# CONFIG_KEYS is not set=0A=
# CONFIG_SECURITY is not set=0A=
=0A=
#=0A=
# Cryptographic options=0A=
#=0A=
CONFIG_CRYPTO=3Dy=0A=
CONFIG_CRYPTO_HMAC=3Dy=0A=
CONFIG_CRYPTO_NULL=3Dm=0A=
CONFIG_CRYPTO_MD4=3Dy=0A=
CONFIG_CRYPTO_MD5=3Dy=0A=
CONFIG_CRYPTO_SHA1=3Dm=0A=
CONFIG_CRYPTO_SHA256=3Dm=0A=
CONFIG_CRYPTO_SHA512=3Dm=0A=
CONFIG_CRYPTO_WP512=3Dm=0A=
CONFIG_CRYPTO_TGR192=3Dm=0A=
CONFIG_CRYPTO_DES=3Dm=0A=
CONFIG_CRYPTO_BLOWFISH=3Dm=0A=
CONFIG_CRYPTO_TWOFISH=3Dm=0A=
CONFIG_CRYPTO_SERPENT=3Dm=0A=
CONFIG_CRYPTO_AES=3Dm=0A=
CONFIG_CRYPTO_CAST5=3Dm=0A=
CONFIG_CRYPTO_CAST6=3Dm=0A=
CONFIG_CRYPTO_TEA=3Dm=0A=
CONFIG_CRYPTO_ARC4=3Dm=0A=
CONFIG_CRYPTO_KHAZAD=3Dm=0A=
CONFIG_CRYPTO_ANUBIS=3Dm=0A=
CONFIG_CRYPTO_DEFLATE=3Dm=0A=
CONFIG_CRYPTO_MICHAEL_MIC=3Dm=0A=
CONFIG_CRYPTO_CRC32C=3Dy=0A=
# CONFIG_CRYPTO_TEST is not set=0A=
=0A=
#=0A=
# Hardware crypto devices=0A=
#=0A=
=0A=
#=0A=
# Library routines=0A=
#=0A=
# CONFIG_CRC_CCITT is not set=0A=
# CONFIG_CRC16 is not set=0A=
CONFIG_CRC32=3Dy=0A=
CONFIG_LIBCRC32C=3Dy=0A=
CONFIG_ZLIB_INFLATE=3Dm=0A=
CONFIG_ZLIB_DEFLATE=3Dm=0A=

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Subject: [parisc-linux] kernel 2.6.15-pa1 and 2.6.15.1-pa4 fault on HIL
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Hello,

when I touch any key of my HIL keyboard, the kernels mentioned above fail 
immediately.

The machine in question is a HP9000 735/125 running Gentoo Linux, using 
gcc-3.3.6, binutils-2.16.1 and glibc-2.3.4.20040808-r1.

If dmesg -n 7 was issued (obviously by an ssh session) or I press a key before 
the rc scripts run, then I get an output like
http://www.richardwalter.de/Backtrace%202.6.15_p1%20on%20keyboard%20event%20second%20try
and the machine does not move any further.

The kernel sources are hppa-sources-2.6.15_p1 from portage, the .config file 
is
http://www.richardwalter.de/.config
the System.map is
http://www.richardwalter.de/System.map.bz2
and the resulting vmlinux looks like this one
http://www.richardwalter.de/vmlinux.bz2
(I compressed the latter two for bandwith-limited people)

I have been able to locate the crash to the file
sftp://root@10.0.0.254/usr/src/linux/drivers/input/input.c
in the function
void input_event(struct input_dev *dev, unsigned int type, unsigned int code, 
int value)
to the line 182 which says
			if (handle->open)

Unfortunately I have not been able to locate the source of this error.

If it is of help, I also inspected the CPU instruction on adress 0c681093, 
according to gdb it says 
ldw -c(r3),r19

I have experienced the similar problem on 2.6.15.1-pa4, but did not intercept 
it to the same depth. Up to now, I could not test any post-2.6.15.x-kernels, 
and the pre-2.6.15-kernels in portage did not have that problem.

Thanks for help
	HPRichard
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From: Fabio Bizzi <fbizzi@bizzi.org>
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Subject: Re: [parisc-linux] Trying to install ...bian-31r1a-hppa on a C200
Date: Mon, 30 Jan 2006 09:24:09 +0100
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데이터텍 wrote:
> I would like to install a debian-31r1a-hppa-netinst.iso, but there's an 
> error while base installation.
> My machine is HP C200 having 256MB with SCSI CD, SCSI HDD(18GB).

Ok, we have worked it out some times ago'! :)

The problem is that the stock sarge kernel is buggy on big disks.
So you have to do a clean installation from 3.1r1a disks, and when the
installer asks to you to reboot, you have to "go back" until the main
menu of the installer will shown.
At this point you have to open a shell, verify that all the partitions
of the target file system are mounted eg:

/dev/sda1 on /target/boot ext2
/dev/sda5 on /target ext3
/none on /target/proc procfs

It's important that proc file system is mounted on the target file
system or the installation of the new kernel will fail.

Now do a chroot to the new system "# chroot /target /bin/bash"
wget to the nwe filesystem the testing kernel images:


# wget
http://ftp.ie.debian.org/debian/pool/main/l/linux-2.6/linux-image-parisc_2.6.12-10_hppa.deb
# wget
http://ftp.ie.debian.org/debian/pool/main/l/linux-2.6/linux-image-2.6-parisc_2.6.12-10_hppa.deb
# wget
http://ftp.ie.debian.org/debian/pool/main/l/linux-2.6/linux-image-2.6.12-1-parisc_2.6.12-10_hppa.deb

And now install them with “#dpkg -i linux-*”, after the installation do
a "# palo" and exit from the shell.

Unmount the proc filesystem from the target filesystem “# unmount
/target/proc” and exit from the shell.

Select the “finish installation” of the installation program’s menù and
reboot the C200, after the reboot continue with base-config and so on.... ;)


If you experience troubles before the "reboot" prompt, power off and try
again... sometime it happens! ;)

Ciao.

	Fabio.


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Subject: Re: [parisc-linux] Trying to install ...bian-31r1a-hppa on a C200
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On Tue, Jan 31, 2006 at 05:04:57PM +0900, ???????????? wrote:
> Creating ext3 file system for / in partition #1 of SCSI1 (0,5,0)
> (sda)...Kernel panic: drivers/parisc/ccio-dma.c: ccio_alloc_range() I/O MMU
> is out of mapping resources.

sorry - this is a well known problem.
Here are two previous emails on the topic:
	http://lists.parisc-linux.org/pipermail/parisc-linux/2003-October/021244.html
	http://lists.parisc-linux.org/hypermail/parisc-linux/1686.html

If you want more info, Start here:
	http://www.parisc-linux.org/mailing-lists/index.html

and search for "ccio_alloc_range ccio_mem_ratio out of mapping"

hth,
grant
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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] kernel install.sh patch/enhancement?
Date: Sat, 04 Feb 2006 18:15:13 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:23409

Hello pa*,


Joel Soete wrote:
> Hello pa*,
> 
> Just some small hunck to (I hope) improve our kernel install.sh.
> 
snip
> 2/ append kernel version to filename (as many other arch too):
> --- arch/parisc/install.sh.Orig 2006-01-23 14:30:17.000000000 +0100
> +++ arch/parisc/install.sh      2006-01-23 15:30:30.000000000 +0100
snip
> @@ -44,13 +47,18 @@
>  
>  # Default install
>  
> -if [ -f $4/vmlinux ]; then
> -       mv $4/vmlinux $4/vmlinux.old
> +if [ -f $4/vmlinux-$1 ]; then
> +       mv $4/vmlinux-$1 $4/vmlinux.old
> +fi
> +
> +if [ -f $4/System.map-$1 ]; then
> +       mv $4/System.map-$1 $4/System.old
>  fi
>  
> -if [ -f $4/System.map ]; then
> -       mv $4/System.map $4/System.old
> +if [ -f $4/config-$1 ]; then
> +       mv $4/config-$1 $4/config.old
>  fi
>  
> -cat $2 > $4/vmlinux
> -cp $3 $4/System.map
> +cat $2 > $4/vmlinux-$1
> +cp $3 $4/System.map-$1
> +cp .config $4/config-$1
> 
> 3/ my paranoid check (because by /boot is a fs usualy mounted in ro, as I
> presume most of sysadm ;-?) 
> --- arch/parisc/install.sh.Orig 2006-01-23 15:32:42.000000000 +0100
> +++ arch/parisc/install.sh      2006-01-23 15:57:24.000000000 +0100
snip
> @@ -62,3 +82,13 @@
>  cat $2 > $4/vmlinux-$1
>  cp $3 $4/System.map-$1
>  cp .config $4/config-$1
> +
> +if [ -h $4/vmlinux ]; then
> +       mv $4/vmlinux $4/vmlinux.prev
> +       ln -sf $4/vmlinux-$1 $4/vmlinux
> +fi
> +
> +if [ -h $4/System.map ]; then
> +       mv $4/System.map $4/System.prev
> +       ln -sf $4/System.map-$1 $4/System.map
> +fi
> ====<>====
> 
There was obviously some small bugs in those to hunk which I change like:
--- arch/parisc/install.sh.Orig 2006-02-03 14:34:17.000000000 +0100
+++ arch/parisc/install.sh      2006-02-03 14:17:12.000000000 +0100
@@ -68,27 +68,29 @@
  # Default install

  if [ -f $4/vmlinux-$1 ]; then
-       mv $4/vmlinux-$1 $4/vmlinux.old
+       mv $4/vmlinux-$1 $4/vmlinux-$1.old
  fi

  if [ -f $4/System.map-$1 ]; then
-       mv $4/System.map-$1 $4/System.old
+       mv $4/System.map-$1 $4/System.map-$1.old
  fi

  if [ -f $4/config-$1 ]; then
-       mv $4/config-$1 $4/config.old
+       mv $4/config-$1 $4/config-1$.old
  fi

  cat $2 > $4/vmlinux-$1
  cp $3 $4/System.map-$1
  cp .config $4/config-$1

-if [ -h $4/vmlinux ]; then
-       mv $4/vmlinux $4/vmlinux.prev
-       ln -sf $4/vmlinux-$1 $4/vmlinux
+cd $4
+if [ -h vmlinux ]; then
+       mv vmlinux vmlinux.prev
+       ln -sf vmlinux-$1 vmlinux
  fi

-if [ -h $4/System.map ]; then
-       mv $4/System.map $4/System.prev
-       ln -sf $4/System.map-$1 $4/System.map
+if [ -h System.map ]; then
+       mv System.map System.map.prev
+       ln -sf System.map-$1 System.map
  fi
+cd -
====<>====

Tx,
     Joel
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] long double on hppa64-*-linux*
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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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Xref: news.gmane.org gmane.linux.ports.parisc:23410

I noticed another long double issue.  Long double is defined to be 128
bits on all 64-bit targets on the PA.  I believe that it should be 128 bits
only on hpux.

I would like to change the long double default on PA64t o 64 bits as there
isn't any hardware support for the 128-bit type, and we currently don't
have software support for 128-bit long doubles implemented.  I can't see
this affecting anything, but it's another ABI change and I thought I should
ask.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] "I/O MMU is out of mapping resources" while a base
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On Sat, Feb 04, 2006 at 06:52:47PM +0900, yong Jung wrote:
> Hellow debian lovers,
> .
> Could you give me a favor to check my install problem
> on C200 machine ?

Hi Yong.
You are the 3rd person in the past week or so to report this problem. :)
It was fixed here:
| revision 1.18
| date: 2005/03/06 23:48:39;  author: grundler;  state: Exp;  lines: +34 -32
| branches:  1.18.2;  1.18.4;
| 
| 2.6.11-pa2 - ditch ccio_mem_ratio. "Ported" from similar change to sba driver.

I'm told debian-31r1a-hppa-netinst.iso uses 2.6.8.1.

Workaround is to reduce the number of outstanding scsi commands
and thus reduce the amount of total I/O "in flight".

You can do this by setting "queue_depth" to 1.
Offhand I only know about /sys entries:
	find /sys -name queue_depth 

and then "echo 1 > /sys/devices/...../queue_depth"

Or can someone remind me how to globally do that from the command line?
google isn't finding it for me today.

grant
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On Sat, Feb 04, 2006 at 06:41:00PM -0500, John David Anglin wrote:
> I noticed another long double issue.  Long double is defined to be 128
> bits on all 64-bit targets on the PA.  I believe that it should be 128 bits
> only on hpux.
> 
> I would like to change the long double default on PA64t o 64 bits as there
> isn't any hardware support for the 128-bit type, and we currently don't
> have software support for 128-bit long doubles implemented.  I can't see
> this affecting anything, but it's another ABI change and I thought I should
> ask.

I'm ok with it. The only downside I can think of is hypothetical:
supporting HPUX binaries with "long double" on parisc-linux hmight get
interesting should any misaligned trap handlers or syscalls need to deal
with long double.

hth,
grant
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> I'm ok with it. The only downside I can think of is hypothetical:
> supporting HPUX binaries with "long double" on parisc-linux hmight get
> interesting should any misaligned trap handlers or syscalls need to deal
> with long double.

The HPUX support uses various _U routines from libc.  I'm not sure
if any kernel support is involved.  Possibly, some support is needed
to handle exceptions.  This is all vague since as far as I know the
_U routines are not publicly documented.  I don't believe there is kernel
support for the quad instructions in the PA 2.0 arch.  There's no
math library support for long doubles in HPUX.  As it seems HP won't
release the _U code, only static HPUX binaries using long double would
have any chance of running on parisc-linux.  So, I'm not sure being
able to run HPUX binaries with "long double" would ever prove particularly
useful.

As things currently stand on hppa64-*-linux*, any arithmetic involving
long doubles results in a call to a libgcc stub that calls abort.

It looks as glibc 2.4 potentially provides 128-bit long double support
as an option.  See patch to make -mlong-double-128 the default:
http://gcc.gnu.org/ml/gcc-patches/2006-01/msg01958.html
The other option is the hardware support -mlong-double-64.

I'm fairly sure that the -mlong-double-128 format (except for a few
architectures) is similar to the rs6000 darwin long double format
(i.e., it's not compatible with the PA 2.0 format, IEEE quad).  It
might not be that much work to copy the rs6000 implementation.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hi Carlos,

> - Removed implied routines for 128-bit long double, default
>   should be whatever gcc uses for long double (DFmode).

There have been a continual stream of patches on the GCC list trying
to fix the 128-bit long-double support for powerpc, etc.  This seems
to be some sort of requirement for glibc 2.4.  The arches supported
by Red Hat are trying to get this into GCC 4.1.

Is this something we need to do right now?  See comment here:
http://gcc.gnu.org/ml/gcc/2006-02/msg00089.html.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] HP 9000 and 3000 Servers, Workstations,
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Cypress Technology purchases all HP 9000 HP-UX related hardware.

Feel free to call or email if you have any HP hardware that you wish to sell
or to get a market value of what your equipment is worth.


Thanks for your time

Jesse Dougherty
Cypress Technology, Inc
Re-Sellers of HP 3000/9000 products
8565A Somerset Drive, Largo, Florida 33773
727-557-0911 / fax 727-557-0121
jesse@cypress-tech.com
www.cypress-tech.com

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On Wed, 08 Feb 2006 07:33:24 +0100, Jan-Benedict Glaw <jbglaw@lug-owl.de> wrote:
> Hi!
> 
> I recently got two C200 (thanks Frank!) and I'll probably soon get a
> J5600. Unfortunately all machines are without any RAM. What kind of
> RAM do I need for these machines? Can I transplant RAM from a 712/50,
> a B132L, 735 or 715? Though that's probably not a nice solution, I do
> have these machines used for Linux hacking, but that's probably better
> than no RAM at all :->
> 
> Thanks, JBG

B132L RAM should be fine in the C200s. These are the "new" 72pin ECC SIMMs.

712 and 715 have "old" 72pin SIMMS. The 735 has some weird and ancient
modules used only in 720/730/735/750/755.

I've got a pile of 16MB modules for B/C/D class at home. I could probably
send some to Germany (from Norway) if you're interested. Mail me off-list.

>>From the J5600 info:

Memory
    * 278-pin 120MHz ECC SDRAM DIMMs
    * Takes 256/512/1024MB modules
    * J5000: 8 slots
    * 256MB (1*256) minimum, J5000: 8GB (8*1024) maximum

-Andy

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Subject: Re: [parisc-linux] Re: [Fwd: Parisc - Linux on a HP-UX C8000 machine]
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Roel,
thanks for forwarding.

On Fri, Feb 10, 2006 at 01:51:16AM +0100, Roel Teuwen wrote:
...
> I see at least a few problems with my C8000 running linux. First of
> all, I did not yet have any time to test it. Secondly, my C8000
> contains PA8900 processors which I don't think anyone has tried yet.

I've been trying some rp3440's with pa8800 processors over
the past 18 monthes and we still have problems with the L2
cache. I'm very slowly making some forward progress on it
but it's nowhere near debugged.

We do think it's related to the use of non-equivalent aliasing
by the parisc-linux kernel. HPUX doesn't do that.

So right now don't expect more than a single socket to work
and still see occasion segfaults.
If more than one CPU socket is enabled, the box will HPMC
with any substatial load that inolves lots of context switching.


> I've added the machine to the hardware database with the plan of
> sending a success/error report to the pateam site and parisc-linux
> maillist later.

thanks!

> By the way, apparently the HWDB doesn't recognize most of the hardware
> in this machine to map it to useful entries. (PA8800 and PA8900 are
> missing for example). I have CC'd the parisc-linux mailing list in the
> hope that someone might know why.

We probably need to clone the new entries from arch/parisc/kernel/hardware.c
to the php/mysql code that drives the HWDB.
Any volunteers?

> I was planning on using Debian but I don't expect the graphical
> interface (I suppose you mean X) to work at all. (even the console
> might not, no tests yet :-) )

I have a C8000 here as well and was told we could probably get
X.org working on it with 2D accelleration. We could get 3D HW accel
if we could get bugs in the x.org/xfree86 BIOS emulation fixed.

thanks,
grant
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Xref: news.gmane.org gmane.linux.ports.parisc:23418

Hello Daniel,

> > I read that you are the owner of the HP-UX C8000 machine in the
> > machine list of the PA_RISC Linux website. In our institute we have
> > the same machine and would like to install a Linux on this machine. We
> > tried the Debian 3.1, the gentoo and the Ubuntu HPPA version but
> > without any success.

As you can read on the hardware database website
(http://www.parisc-linux.org/hardware/index.html), the hardware
database just contains links from certain hardware models to specific
devices to help the developers.

It is not a list of supported hardware. For that you will be better
off following the link on the same page :
http://www.parisc-linux.org/hardware/supported.html and
http://www.pateam.org/list.html

> > Is it possible to get some help of you?

I see at least a few problems with my C8000 running linux. First of
all, I did not yet have any time to test it. Secondly, my C8000
contains PA8900 processors which I don't think anyone has tried yet.
I've added the machine to the hardware database with the plan of
sending a success/error report to the pateam site and parisc-linux
maillist later.

By the way, apparently the HWDB doesn't recognize most of the hardware
in this machine to map it to useful entries. (PA8800 and PA8900 are
missing for example). I have CC'd the parisc-linux mailing list in the
hope that someone might know why.

> > Which distribution did you use and which parameters did you set while
> > booting? Does the graphical user interface works in your installation?

I was planning on using Debian but I don't expect the graphical
interface (I suppose you mean X) to work at all. (even the console
might not, no tests yet :-) )

> > I hope you can help us.

Not really, sorry. Someone on the mailinglist might know more or be
interested in hearing about any specific problems you have
encountered.

Best regards,

Roel

> > Thanks, Daniel
> >
> >
> >
> > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> >
> > MPI of Molecular Plant Physiology
> >
> >
> >
> > Dipl. Inf. (FH)
> >
> > Daniel Weicht
> >
> > Bioinformatics Group
> >
> >
> >
> > Max-Planck-Institut f=FCr Molekulare Pflanzenphysiologie
> >
> > Wissenschaftspark Golm
> >
> > Am M=FChlenberg 1
> >
> > 14476 Potsdam-Golm
> >
> > Germany
> >
> >
> >
> > e-mail:  weicht@mpimp-golm.mpg.de
> >
> > web:  http://www.mpimp-golm.mpg.de
> >
> > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> >
> >
> >
> >
>
>
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Subject: Re: [parisc-linux] Re: [Fwd: Parisc - Linux on a HP-UX C8000 machine]
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Cc: Weicht@mpimp-golm.mpg.de,
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 Roel Teuwen <roel.teuwen@gmail.com>
To: Thibaut VARENE <T-Bone@parisc-linux.org>
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On Fri, Feb 10, 2006 at 01:22:22PM +0100, Thibaut VARENE wrote:
> And btw, I just noticed that the list on pateam.org reports some
> "cache issues" with fast A500. Though we believe firmly that L2 and
> non-equivalent aliasing might be at fault on PA8800/PA8900, I wonder
> if there are still other cache issues, or if the comments on the list
> should be cleared. Any update about that? :)

I don't know. I don't think any problems we've seen recently
can be attributed to caching issues. The most stable kernel
so far seems to be 2.6.13-pa1. But I expect as 2.6.15 gets
more exposure on Debian we'll know if that is better and if
it has any remaining caching issues.

> > We probably need to clone the new entries from arch/parisc/kernel/hardware.c
> > to the php/mysql code that drives the HWDB.
> > Any volunteers?
> 
> This is not that easy. The underlaying infrastructure of the HWDB is a
> really PITA, adding new stuff will probably require a bit more
> hacking. I'll try to figure out what needs to be done and will report
> about it ;)

The upside of pa8900 being the last one is we won't have
to update the HWDB much more. :(

> BTW, if anyone feels like volunteering for a complete redesign of the
> mysql/php infrastructure, please raise a hand!

I'd like to add, the HWDB maintainer doesn't need to be a linux hacker.
If someone from *BSD or HP-UX community wants to maintain it, I
certainly won't object.

thanks,
grant
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Hi,

I recently played around with gcc-4.1 and glibc to build a glibc with nptl 
support. Unfortunately I don't know right now, where to get current patches 
to glibc (cvs.parisc-linux.org seems to be outdated). But while doing this, 
running binaries with this glibc under gdb crashed my machine, while without 
gdb, the binaries would just segfault. Here is what happened to the kernel 
(2.6.15-rc7-pa0) using the TOC button:

General Registers 0 - 31
00-03   0000000000000000  00000000fff0bdc0  00000000101247a8  0000000000000000
04-07   000000000000688d  00000000102cc568  0000000000000000  0000000000035150
08-11   0000000000000001  0000000000035150  00000000000b5088  0000000000035150
12-15   0000000000035150  0000000000000000  0000000000024000  0000000000035150
16-19   0000000000035150  0000000000035150  0000000000035150  00000000a08841fa
20-23   0000000000000000  0000000000000000  0000000010124554  000000002f59089b
24-27   000000000028e7b0  00000000000f4240  0000000020e6da00  0000000010318010
28-31   000000000000688e  0000000000086c40  000000004bf342c0  00000000101247c4

<Press any key to continue (q to quit)>

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   000000000000115a  0000000000000000  00000000000000c0  000000000000001f
12-15   0000000000000000  0000000000000000  000000000010b000  00000000f8000000
16-19   00000040a0941653  0000000000000000  00000000101247d8  00000000020008bc
20-23   0000000000000000  0000000000000000  000000ff0004f40f  0000000000000000
24-27   000000000035f000  000000003e9ec000  00000000ffffffff  0000000040001140
28-31   00000000ffffffff  00000000ffffffff  000000004bf34000  0000000010370000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000f2d
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x00000000101247dc
CPU State                    = 0x9e000001

messages (/var/log/warn):
Feb 10 16:26:28 glaurung kernel: kernel BUG at mm/mmap.c:1956!
Feb 10 16:26:28 glaurung kernel: Backtrace:
Feb 10 16:26:28 glaurung kernel:  [<101583c8>] exit_mmap+0x170/0x190
Feb 10 16:26:28 glaurung kernel:  [<10122f64>] mmput+0x3c/0xb4
Feb 10 16:26:28 glaurung kernel:  [<10127cc8>] do_exit+0x200/0x9ec
Feb 10 16:26:28 glaurung kernel:  [<10128574>] do_group_exit+0xc0/0xc4
Feb 10 16:26:28 glaurung kernel:  [<10108360>] tracesys_exit+0x0/0x34
Feb 10 16:26:28 glaurung kernel:
Feb 10 16:26:28 glaurung kernel: Kernel panic - not syncing: BUG!

System.map
10124570 T print_tainted
10124658 T panic
101247f0 t __call_console_drivers
1012486c t _call_console_drivers

This is easily reproduceable, I just running gdb ls results in this behavior. 
So besides having a broken glibc, it looks like I also caught a problem in 
the kernel...

Maybe someone knowledgeable could look at it.

Thanks

Berthold
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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> And I didn't find any uClibc debian pkg ready for hppa, though.
> 
> Any idea, advise?

You might want to look at this thread:
http://gcc.gnu.org/ml/gcc-patches/2006-02/msg00843.html

I expect getting this to work might be an excellent learning exercise ;)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Am Samstag 11 Februar 2006 00:57 schrieb Randolph Chung:
> > I recently played around with gcc-4.1 and glibc to build a glibc with
> > nptl support. Unfortunately I don't know right now, where to get current
> > patches to glibc (cvs.parisc-linux.org seems to be outdated). But while
> > doing this, running binaries with this glibc under gdb crashed my
> > machine, while without gdb, the binaries would just segfault. Here is
> > what happened to the kernel (2.6.15-rc7-pa0) using the TOC button:
>
> Can you specify more clearly what is "this glibc"? How did you finally
> build it? From what sources, with which toolchain (gcc/binutils) and
> with which options?

I am sorry that I was unclear about the environment. The glibc sources are 
those from cvs.parisc-linux.org. The toolchain is

GNU assembler version 2.16.91 (hppa-suse-linux) using BFD version 2.16.91 
20051210 (SUSE Linux)

gcc version 4.1.0 20060109 (prerelease) (SUSE Linux)

> If you build a simple "Hello World" app and run it, does it also kill
> the machine? Does this happen whether the app is linked dynamically or
> statically?

It only happens when I run a dynamically linked binary under gdb. And if I 
more /lib/tls away, it does not segfault at all. I did not write about this 
program not working, it made me think that it crashed the machine, and that 
there seems to be some problem in the kernel.

I just tried to build a small hello world program, and this did not crash the 
machine (although with tls, it would just segfault). This is what I did:

# cat foo.c
#include <stdio.h>

int
main()
{
  printf("Hello world\n");
  return 0;
}

gcc -o foo foo.c

# gdb foo
GNU gdb 6.3
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "hppa-suse-linux"...Using host libthread_db library 
"/lib/tls/libthread_db.so.1".

(gdb) run
Starting program: /tmp/foo

Program received signal SIGSEGV, Segmentation fault.
0x403a11a0 in write () from /lib/tls/libc.so.6
(gdb) bt
#0  0x403a11a0 in write () from /lib/tls/libc.so.6
#1  0x4034f450 in _IO_new_file_write () from /lib/tls/libc.so.6
#2  0x4034f0cc in new_do_write () from /lib/tls/libc.so.6
#3  0x4034f3c0 in _IO_new_do_write () from /lib/tls/libc.so.6
#4  0x4034fce4 in _IO_new_file_overflow () from /lib/tls/libc.so.6
#5  0x40351dd8 in __overflow () from /lib/tls/libc.so.6
#6  0x40342a8c in puts () from /lib/tls/libc.so.6
#7  0x000104a0 in main ()

Without /lib/tls, everything works as expected.

Berthold
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Subject: [parisc-linux] a stupid question about pdc_console?
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Hello pa*,

afaik our pdc_console is the very early console that kernel has to printout early msg?

if yes could we anyway printk before this console is initialized?

(see arch/parisc/kernel/setup.c
in setup_arch()
we printk the kernel bit width (32/64 bits) just before pdc_console_init(), though?)

TIA,
	Joel

PS: don't much understand how in init/main.c
[...]
     441 asmlinkage void __init start_kernel(void)
     442 {
     443         char * command_line;
     444         extern struct kernel_param __start___param[], __stop___param[];
     445 /*
     446  * Interrupts are still disabled. Do necessary setups, then
     447  * enable them
     448  */
     449         lock_kernel();
     450         page_address_init();
     451         printk(KERN_NOTICE);
     452         printk(linux_banner);
     453         setup_arch(&command_line);
     454         setup_per_cpu_areas();
[...]

how printk() works before setup_arch() initialized his early console?
(that works but how?)
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On Sun, Feb 12, 2006 at 01:40:40PM +0000, Joel Soete wrote:
> how printk() works before setup_arch() initialized his early console?
> (that works but how?)

it queues it until a console registers, and then it gets dumped.

(see register_console in kernel/printk.c)
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Subject: [parisc-linux] glibc-2.3.6 + carlos tls patch?
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Hello pa*,

I am trying to apply latest cvs.p-l.org glibc tls (according to lsdiff
glibc-hppa-tls-2005-04-05.diff Carlos' patch).

In addition to previous mentioned patch (related to gcc-4 pb), I reach to=

rebuild this pkg with more or less success:
make -k check 
# grep Err ../../Logs/glibc-2.3.6-1.3.Check
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/locale=
data/sort-test.out]
Error 1
make[1]: *** [localedata/tests] Error 2
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/t=
est-float.out]
Error 1
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/t=
est-double.out]
Error 1
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/t=
est-idouble.out]
Error 1
make[1]: *** [math/tests] Error 2
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/=
tst-regex2.out]
Error 1
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/=
tst-rxspencer.out]
Error 139
make[2]:
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/=
annexc.out]
Error 1 (ignored)
make[1]: *** [posix/tests] Error 2
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/linuxt=
hreads/tst-attr1.out]
Error 1
make[1]: *** [linuxthreads/tests] Error 2
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst=
-timer.out]
Error 137
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst=
-aio4.out]
Error 1
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst=
-timer4.out]
Error 1
make[1]: *** [rt/tests] Error 2
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/elf/ts=
t-execstack.out]
Error 1
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

(Just still have a tst-regex hanging in infinit loop?)

Unfortunately, it is without tls support, though:
dpkg-buildpackage
[...]
(exec 3>&1; exit `( ( (  cd build-tree/hppa-libc && CC=3D"gcc-4.0"
AUTOCONF=3Dfalse /CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6
/build-tree/glibc-2.3.6/configure --host=3Dhppa-linux-gnu
--build=3D$configure_build --prefix=3D/usr --without-cvs --enable-add-ons=
=3Dlibidn
,"linuxthreads " --without-selinux
--with-headers=3D/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/debian/incl=
ude
--enable-kernel=3D2.2.0
 ) 2>&1 3>&-; echo $? >&4) | tee  -a
/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/log-build-hppa-linux-gnu-lib=
c
>&3) 4>&1`)
[...]
checking size of long double... 8
running configure fragment for sysdeps/hppa/elf
checking for hppa TLS support... no
running configure fragment for libidn/sysdeps/unix
[...]

A look in config.log:
[...]
configure:7460: result: running configure fragment for sysdeps/hppa/elf
configure:7: checking for hppa TLS support
configure:44: gcc-4.0 -c -g -O2 conftest.s 1>&5
conftest.s: Assembler messages:
conftest.s:7: Error: can't resolve `foo' {.tdata section} - `$tls_gdidx$'=

{*UND* section}
conftest.s:8: Error: can't resolve `foo' {.tdata section} - `$tls_gdidx$'=

{*UND* section}
conftest.s:13: Error: can't resolve `foo' {.tdata section} - `$tls_ldidx$=
'
{*UND* section}
conftest.s:15: Error: can't resolve `foo' {.tdata section} - `$tls_ldidx$=
'
{*UND* section}
conftest.s:16: Error: can't resolve `foo' {.tdata section} - `$tls_dtpoff=
$'
{*UND* section}
conftest.s:21: Error: can't resolve `foo' {.tdata section} - `$tls_ieoff$=
'
{*UND* section}
conftest.s:22: Error: can't resolve `foo' {.tdata section} - `$tls_ieoff$=
'
{*UND* section}
conftest.s:27: Error: can't resolve `foo' {.tdata section} - `$tls_leoff$=
'
{*UND* section}
conftest.s:28: Error: can't resolve `foo' {.tdata section} - `$tls_leoff$=
'
{*UND* section}
configure:47: $? =3D 1
configure:55: result: no
configure:7460: result: running configure fragment for libidn/sysdeps/uni=
x

mmm, grab the test and try with gcc-4.1:
[...]
configure:7460: result: running configure fragment for sysdeps/hppa/elf
configure:7: checking for hppa TLS support
configure:44: gcc-4.0 -c -g -O2 conftest.s 1>&5
conftest.s: Assembler messages:
conftest.s:7: Error: can't resolve `foo' {.tdata section} - `$tls_gdidx$'=

{*UND* section}
conftest.s:8: Error: can't resolve `foo' {.tdata section} - `$tls_gdidx$'=

{*UND* section}
conftest.s:13: Error: can't resolve `foo' {.tdata section} - `$tls_ldidx$=
'
{*UND* section}
conftest.s:15: Error: can't resolve `foo' {.tdata section} - `$tls_ldidx$=
'
{*UND* section}
conftest.s:16: Error: can't resolve `foo' {.tdata section} - `$tls_dtpoff=
$'
{*UND* section}
conftest.s:21: Error: can't resolve `foo' {.tdata section} - `$tls_ieoff$=
'
{*UND* section}
conftest.s:22: Error: can't resolve `foo' {.tdata section} - `$tls_ieoff$=
'
{*UND* section}
conftest.s:27: Error: can't resolve `foo' {.tdata section} - `$tls_leoff$=
'
{*UND* section}
conftest.s:28: Error: can't resolve `foo' {.tdata section} - `$tls_leoff$=
'
{*UND* section}
configure:47: $? =3D 1
configure:55: result: no
configure:7460: result: running configure fragment for libidn/sysdeps/uni=
x

Too bad.

Even though, I trusted that gcc and binutil tls stuff was already uptream=
?
Or do I need to rebuild related pkg with some specific option or apply so=
me
patch from somewhere?

TIA for advise,
    Joel=0A=0A-------------------------------------------------------=0AN=
OTE! My email address is changing to ... @scarlet.be=0APlease make the ne=
cessary changes in your address book. =0A=0A

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> Even though, I trusted that gcc and binutil tls stuff was already uptream?

I don't believe the binutils support is upstream.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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John David Anglin wrote:
>>Even though, I trusted that gcc and binutil tls stuff was already uptream?
> 
> 
> I don't believe the binutils support is upstream.

No, not yet. If Carlos and Dave feel the changes are ok I can submit them.

randolph
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Subject: Re: Bug#353480: yaird: [hppa] /dev/sd* device nodes not created and eth0 not enabled
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On Sat, Feb 18, 2006 at 10:02:28PM +0100, Frans Pop wrote:
> udevd[862]: get_netlink_msg: unable to receive kernel netlink message: No buffer space available
> <!-- not sure about this message, but the same is shown for initramfs-tools --

This is the reason you aren't getting /dev/sd* nodes. I debugged
this yesterday, needs new udev upload, more details here:
http://marc.theaimsgroup.com/?l=linux-hotplug-devel&m=114019842906313&w=2


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Hmm, I just saw this booting a dual 552MHz J6000:

FP[1] enabled: Rev 1 Model 16
migration_cost=2000
CPU(s): 2 x PA8600 (PCX-W+) at 552.000000 MHz
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 1
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 2
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 3
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 4
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 5
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 6
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 7
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 8
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 9
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 10
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 11
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 12
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 13
SMP CALL FUNCTION TIMED OUT! (cpu=0), try 14
Setting cache flush threshold to 63134a00 (2 CPUs online)

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Adding the test of pt_regs.psw.i results in preempt_schedule_irq never
being called... I can't figure out why, if we're returning to the kernel,
we shouldn't have interrupted a place with I-bit off...

If you want to test /real/ preempt, comment out that branch on bit
testing PSW_SM_I and rebuild. Frequently, there will be a Protection ID
trap in either copy_siginfo_to_user or do_work, always the same insn in
both.

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index eca33cf..cf79639 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -169,14 +169,10 @@ config ARCH_DISCONTIGMEM_DEFAULT
 	def_bool y
 	depends on ARCH_DISCONTIGMEM_ENABLE
 
+source "kernel/Kconfig.preempt"
 source "kernel/Kconfig.hz"
 source "mm/Kconfig"
 
-config PREEMPT
-	bool
-#	bool "Preemptible Kernel"
-	default n
-
 config COMPAT
 	def_bool y
 	depends on 64BIT
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 9af4b22..bf6c605 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1014,14 +1014,21 @@ intr_restore:
 	nop
 	nop
 
+#ifndef CONFIG_PREEMPT
+# define intr_do_preempt	intr_restore
+#endif /* !CONFIG_PREEMPT */
+
 	.import schedule,code
 intr_do_resched:
-	/* Only do reschedule if we are returning to user space */
+	/* Only call schedule on return to userspace. If we're returning
+	 * to kernel space, we may schedule if CONFIG_PREEMPT, otherwise
+	 * we jump back to intr_restore.
+	 */
 	LDREG	PT_IASQ0(%r16), %r20
-	CMPIB= 0,%r20,intr_restore /* backward */
+	CMPIB=	0, %r20, intr_do_preempt
 	nop
 	LDREG	PT_IASQ1(%r16), %r20
-	CMPIB= 0,%r20,intr_restore /* backward */
+	CMPIB=	0, %r20, intr_do_preempt
 	nop
 
 #ifdef CONFIG_64BIT
@@ -1037,7 +1044,34 @@ intr_do_resched:
 #endif
 	ldo	R%intr_check_sig(%r2), %r2
 
+	/* preempt the current task on returning to kernel
+	 * mode from an interrupt, iff need_resched is set,
+	 * and preempt_count is 0. otherwise, we continue on
+	 * our merry way back to the current running task.
+	 */
+#ifdef CONFIG_PREEMPT
+	.import preempt_schedule_irq,code
+intr_do_preempt:
+	rsm	PSW_SM_I, %r0		/* disable interrupts */
+
+	/* current_thread_info()->preempt_count */
+	mfctl	%cr30, %r1
+	LDREG	TI_PRE_COUNT(%r1), %r19
+	CMPIB<>	0, %r19, intr_restore	/* if preempt_count > 0 */
+	nop				/* prev insn branched backwards */
 
+	/* abort if we're returning with interrupts off */
+	LDREG	PT_PSW(%r16), %r20
+	bb,>=,n	%r20, 31 - PSW_SM_I, intr_restore
+	nop
+
+	/* preempt_schedule_irq expects to be called with interrupts off */
+	BL	preempt_schedule_irq, %r2
+	nop
+
+	b	intr_restore		/* ssm PSW_SM_I done by intr_restore */
+#endif /* CONFIG_PREEMPT */
+	
 	.import do_signal,code
 intr_do_signal:
 	/* 
diff --git a/include/asm-parisc/spinlock.h b/include/asm-parisc/spinlock.h
index 16c2ac0..bfa8125 100644
--- a/include/asm-parisc/spinlock.h
+++ b/include/asm-parisc/spinlock.h
@@ -134,14 +134,22 @@ static  __inline__ int __raw_write_trylo
 	return 1;
 }
 
-static __inline__ int __raw_is_read_locked(raw_rwlock_t *rw)
+/*
+ * read_can_lock - would read_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+static __inline__ int __raw_read_can_lock(raw_rwlock_t *rw)
 {
-	return rw->counter > 0;
+	return rw->counter >= 0;
 }
 
-static __inline__ int __raw_is_write_locked(raw_rwlock_t *rw)
+/*
+ * write_can_lock - would write_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+static __inline int __raw_write_can_lock(raw_rwlock_t *rw)
 {
-	return rw->counter < 0;
+	return !rw->counter;
 }
 
 #endif /* __ASM_SPINLOCK_H */
diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h
index ac32f14..f2f83b0 100644
--- a/include/asm-parisc/thread_info.h
+++ b/include/asm-parisc/thread_info.h
@@ -49,7 +49,8 @@ struct thread_info {
 
 #endif /* !__ASSEMBLY */
 
-#define PREEMPT_ACTIVE          0x10000000
+#define PREEMPT_ACTIVE_BIT	28
+#define PREEMPT_ACTIVE		(1 << PREEMPT_ACTIVE_BIT)
 
 /*
  * thread information flags
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Xref: news.gmane.org gmane.linux.ports.parisc:23431

Hello pa*,

With those debian src + Carlos's patch: <http://cvs.parisc-linux.org/glibc/posix/regcomp.c?rev=1.3&view=log>, here are the latest 
Error of make -k check:
# grep Err ../../../../Logs/glibc-2.3.6-2.0.Check make[2]: *** 
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/localedata/sort-test.out] Error 1
make[1]: *** [localedata/tests] Error 2
make[2]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-float.out] Error 1
make[2]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-double.out] Error 1
make[2]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-idouble.out] Error 1
make[1]: *** [math/tests] Error 2
make[2]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/tst-rxspencer.out] Error 139
make[2]: [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/annexc.out] Error 1 (ignored)
make[1]: *** [posix/tests] Error 2
make[2]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/linuxthreads/tst-attr1.out] Error 1
make[1]: *** [linuxthreads/tests] Error 2
make[2]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-timer.out] Error 137
make[2]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-aio4.out] Error 1
make[2]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-timer4.out] Error 1
make[1]: *** [rt/tests] Error 2
make[2]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/elf/tst-tls13.out] Error 1
make[2]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/elf/tst-execstack.out] Error 1
make[2]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/elf/tst-execstack-prog.out] Error 1
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

Sorry I didn't fond back the list of known Errors, could you point me out regressions?

TIA,
	Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:23432

Linux duet 2.6.16-rc4-ga0124d78-dirty #32 SMP PREEMPT Sun Feb 26 01:42:36 EST 2006 parisc64 GNU/Linux

My hope is that PREEMPT will expose some bugs for us...
Seems to be self-hosting, at least, a make -j8 on the kernel succeeded.

For this to be unbuggy, someone probably needs to do the legwork to
forward port the previous work in ftp.p-l.org/patches.

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index eca33cf..cf79639 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -169,14 +169,10 @@ config ARCH_DISCONTIGMEM_DEFAULT
 	def_bool y
 	depends on ARCH_DISCONTIGMEM_ENABLE
 
+source "kernel/Kconfig.preempt"
 source "kernel/Kconfig.hz"
 source "mm/Kconfig"
 
-config PREEMPT
-	bool
-#	bool "Preemptible Kernel"
-	default n
-
 config COMPAT
 	def_bool y
 	depends on 64BIT
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 9af4b22..920fb9c 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1014,14 +1014,23 @@ intr_restore:
 	nop
 	nop
 
+#ifndef CONFIG_PREEMPT
+# define intr_do_preempt	intr_restore
+#endif /* !CONFIG_PREEMPT */
+
 	.import schedule,code
 intr_do_resched:
-	/* Only do reschedule if we are returning to user space */
+	/* Only call schedule on return to userspace, if we're returning
+	 * to kernel space, we may schedule if CONFIG_PREEMPT...
+	 *
+	 * NOTE: Conditional nullification because of branch direction
+	 * doesn't matter, since both are NULL.
+	 */
 	LDREG	PT_IASQ0(%r16), %r20
-	CMPIB= 0,%r20,intr_restore /* backward */
+	CMPIB= 0,%r20,intr_do_preempt
 	nop
 	LDREG	PT_IASQ1(%r16), %r20
-	CMPIB= 0,%r20,intr_restore /* backward */
+	CMPIB= 0,%r20,intr_do_preempt
 	nop
 
 #ifdef CONFIG_64BIT
@@ -1037,7 +1046,37 @@ intr_do_resched:
 #endif
 	ldo	R%intr_check_sig(%r2), %r2
 
+	/* preempt the current task on returning to kernel
+	 * mode from an interrupt, iff need_resched is set,
+	 * and preempt_count is 0. otherwise, we continue on
+	 * our merry way back to the current running task.
+	 */
+#ifdef CONFIG_PREEMPT
+	.import preempt_schedule_irq,code
+intr_do_preempt:
+	/* current_thread_info()->preempt_count */
+	mfctl	%cr30, %r1
+	LDREG	TI_PRE_COUNT(%r1), %r19
+	CMPIB<>	0, %r19, intr_check_sig	/* if preempt_count > 0 */
+	nop				/* prev insn branched backwards */
+
+	/* this block looks redundant... we wouldn't be here if
+	 * TIF_NEED_RESCHED wasn't set */
+	LDREG	TI_FLAGS(%r1), %r20
+	bb,>=,n	%r20, 31 - TIF_NEED_RESCHED, intr_check_sig
+	nop				/* backward */
+	
+	ssm	0, %r20			/* are interrupts disabled? */
+	bb,<,n	%r20, 31 - PSW_I, intr_check_sig
+	nop				/* backward */
+
+1:	BL	preempt_schedule_irq, %r2
+	nop
 
+	mfctl	%cr30, %r1
+	LDREG	TI_FLAGS(%r1), %r20
+	bb,<,n	%r20, 31 - TIF_NEED_RESCHED, 1b
+#endif /* CONFIG_PREEMPT */
 	.import do_signal,code
 intr_do_signal:
 	/* 
diff --git a/include/asm-parisc/spinlock.h b/include/asm-parisc/spinlock.h
index 16c2ac0..bfa8125 100644
--- a/include/asm-parisc/spinlock.h
+++ b/include/asm-parisc/spinlock.h
@@ -134,14 +134,22 @@ static  __inline__ int __raw_write_trylo
 	return 1;
 }
 
-static __inline__ int __raw_is_read_locked(raw_rwlock_t *rw)
+/*
+ * read_can_lock - would read_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+static __inline__ int __raw_read_can_lock(raw_rwlock_t *rw)
 {
-	return rw->counter > 0;
+	return rw->counter >= 0;
 }
 
-static __inline__ int __raw_is_write_locked(raw_rwlock_t *rw)
+/*
+ * write_can_lock - would write_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+static __inline int __raw_write_can_lock(raw_rwlock_t *rw)
 {
-	return rw->counter < 0;
+	return !rw->counter;
 }
 
 #endif /* __ASM_SPINLOCK_H */
diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h
index ac32f14..f2f83b0 100644
--- a/include/asm-parisc/thread_info.h
+++ b/include/asm-parisc/thread_info.h
@@ -49,7 +49,8 @@ struct thread_info {
 
 #endif /* !__ASSEMBLY */
 
-#define PREEMPT_ACTIVE          0x10000000
+#define PREEMPT_ACTIVE_BIT	28
+#define PREEMPT_ACTIVE		(1 << PREEMPT_ACTIVE_BIT)
 
 /*
  * thread information flags
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re:[parisc-linux] debian glibc 2.3.6-2.0 test
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Xref: news.gmane.org gmane.linux.ports.parisc:23433

> Hello pa*,
> 
> With those debian src + Carlos's patch:
<http://cvs.parisc-linux.org/glibc/posix/regcomp.c?rev=3D1.3&view=3Dlog>,=
 here are
the latest 
> Error of make -k check:
> # grep Err ../../../../Logs/glibc-2.3.6-2.0.Check make[2]: *** 
>
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/locale=
data/sort-test.out]
Error 1
> make[1]: *** [localedata/tests] Error 2
> make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/t=
est-float.out]
Error 1
> make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/t=
est-double.out]
Error 1
> make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/t=
est-idouble.out]
Error 1
> make[1]: *** [math/tests] Error 2
> make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/=
tst-rxspencer.out]
Error 139
> make[2]:
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/=
annexc.out]
Error 1 (ignored)
> make[1]: *** [posix/tests] Error 2
> make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/linuxt=
hreads/tst-attr1.out]
Error 1
> make[1]: *** [linuxthreads/tests] Error 2
> make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst=
-timer.out]
Error 137
> make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst=
-aio4.out]
Error 1
> make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst=
-timer4.out]
Error 1
> make[1]: *** [rt/tests] Error 2
> make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/elf/ts=
t-tls13.out]
Error 1
> make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/elf/ts=
t-execstack.out]
Error 1
> make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/elf/ts=
t-execstack-prog.out]
Error 1
> make[1]: *** [elf/tests] Error 2
> make: *** [check] Error 2
> 
> Sorry I didn't fond back the list of known Errors, could you point me o=
ut
regressions?
> 

For remind:
Rebuilding libc6 2.3.5-13 dpkg with gcc-3.3, I got following Error check:=

grep Err ../../../../Logs/glibc-2.3.5-13.Checkmake[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.5/build-tree/hppa-libc/locale=
data/sort-test.out]
Error 1
make[1]: *** [localedata/tests] Error 2
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.5/build-tree/hppa-libc/math/t=
est-float.out]
Error 1
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.5/build-tree/hppa-libc/math/t=
est-double.out]
Error 1
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.5/build-tree/hppa-libc/math/t=
est-ifloat.out]
Error 1
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.5/build-tree/hppa-libc/math/t=
est-idouble.out]
Error 1
make[1]: *** [math/tests] Error 2
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.5/build-tree/hppa-libc/stdlib=
/tst-strtod.out]
Error 1
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.5/build-tree/hppa-libc/stdlib=
/bug-strtod.out]
Error 1
make[1]: *** [stdlib/tests] Error 2
make[2]:
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.5/build-tree/hppa-libc/posix/=
annexc.out]
Error 1 (ignored)
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.5/build-tree/hppa-libc/linuxt=
hreads/tst-attr1.out]
Error 1
make[1]: *** [linuxthreads/tests] Error 2
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.5/build-tree/hppa-libc/rt/tst=
-timer.out]
Error 137
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.5/build-tree/hppa-libc/rt/tst=
-aio4.out]
Error 1
make[2]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.5/build-tree/hppa-libc/rt/tst=
-timer4.out]
Error 1
make[1]: *** [rt/tests] Error 2
make: *** [check] Error 2


Well, the first regression is in tst-rxspencer which only failled on 2 te=
st:
[...]
a[[=3Db=3D]]c      &       abc     abc
[...]
a[[=3Db=3D]        &C      EBRACK
[...]

Program received signal SIGSEGV, Segmentation fault.
0x400b7010 in build_equiv_class (sbcset=3D0x23268, mbcset=3D0x45600,
equiv_class_alloc=3D0xc0020e48, name=3D0xc0020e78 "b")
    at regcomp.c:3495
warning: Source file is more recent than executable.

3495          len =3D weights[idx1];
(gdb) p idx1
$1 =3D 16777820

...

Hth,
    Joel
=0A=0A-------------------------------------------------------=0ANOTE! My =
email address is changing to ... @scarlet.be=0APlease make the necessary =
changes in your address book. =0A=0A

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From - Thu Nov 08 21:34:24 2018
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From: Kyle McMartin <kyle@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] alternate insn for parisc (ccio/sba)
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Xref: news.gmane.org gmane.linux.ports.parisc:23434

Finally got around to making this work. I don't want to commit it yet,
as I still haven't decided I like using the x86-esque interface for
deciding to patch. And the names of some of the things are kind of lame.

Anyway, it appears to work in my testing on sba... I converted ccio when
I respun the diff too.

Someone looking it over would be nice. Ten poins if someone can find
another use for this that justifies making it as generic as it is.

Also, if you want to test it, you'll need to remove the & ~_PAGE_WRITE from
PAGE_KERNEL_RO in asm/pgtable.h until we write protect the kernel at a
later stage.

diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 4a36ec3..df67259 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -38,6 +38,7 @@
 #undef PCI_DEBUG
 #include <linux/proc_fs.h>
 
+#include <asm/system.h>
 #include <asm/processor.h>
 #include <asm/pdc.h>
 #include <asm/led.h>
@@ -45,6 +46,7 @@
 #include <asm/pdc_chassis.h>
 #include <asm/io.h>
 #include <asm/setup.h>
+#include <asm/cache.h>
 
 char	command_line[COMMAND_LINE_SIZE] __read_mostly;
 
@@ -116,6 +118,66 @@ void __init dma_ops_init(void)
 }
 #endif
 
+static int parisc_patch_opcode(unsigned long flag, unsigned long reason)
+{
+	switch(reason) {
+	case ALT_PDC_CAPABILITY:
+		if (boot_cpu_data.pdc.capabilities & flag) {
+			return 1;
+		}
+		break;
+	default:
+		printk(KERN_INFO "Unknown reason for opcode patch.\n");
+		break;
+	}
+
+	return 0;
+}
+
+static void
+self_modifying_code_flush(unsigned long addr)
+{
+	/* flush_icache_range() does the dcache flush, sync, icache flush, 
+	 * sync. There should easily be more than 7 insns between the flush
+	 * and executing any patched instruction.
+	 */
+	flush_icache_range(addr, addr + 4);
+}
+
+void apply_alternatives(void *start, void *end)
+{
+	struct alt_instr *a;
+
+	for (a = start; (void*)a < end; a++) {
+		if (!parisc_patch_opcode(a->flag, a->reason))
+			continue;
+
+		/* pa-_risc_ no variable length crap here */
+		memcpy(a->instr, a->replacement, 4);
+		self_modifying_code_flush((unsigned long)a->instr);
+	}
+}
+
+static int no_replacement __initdata = 0;
+
+void __init alternative_instructions(void)
+{
+	extern struct alt_instr __alt_instructions[], __alt_instructions_end[];
+
+	if (no_replacement)
+		return;
+
+	apply_alternatives(__alt_instructions, __alt_instructions_end);
+}
+
+static int __init noreplacement_setup(char *s)
+{
+	no_replacement = 1;
+	return 0;
+} 
+
+__setup("noreplacement", noreplacement_setup);
+
 extern int init_per_cpu(int cpuid);
 extern void collect_boot_cpu_data(void);
 
@@ -319,6 +381,8 @@ static int __init parisc_init(void)
 			boot_cpu_data.cpu_hz / 1000000,
 			boot_cpu_data.cpu_hz % 1000000	);
 
+	alternative_instructions();
+
 	parisc_setup_cache_timing();
 
 	/* These are in a non-obvious order, will fix when we have an iotree */
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 6d6436a..cd42528 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -153,15 +153,13 @@ SECTIONS
   .con_initcall.init : { *(.con_initcall.init) }
   __con_initcall_end = .;
   SECURITY_INIT
-  /* alternate instruction replacement.  This is a mechanism x86 uses
-   * to detect the CPU type and replace generic instruction sequences
-   * with CPU specific ones.  We don't currently do this in PA, but
-   * it seems like a good idea... */
-  . = ALIGN(4);
+  /* alternate instruction replacement, see setup.c and system.h */
+  . = ALIGN(8);
   __alt_instructions = .;
   .altinstructions : { *(.altinstructions) } 
   __alt_instructions_end = .; 
- .altinstr_replacement : { *(.altinstr_replacement) } 
+ .altinstr_replacement : { *(.altinstr_replacement) }
+  . = ALIGN(4);
   /* .exit.text is discard at runtime, not link time, to deal with references
      from .altinstructions and .eh_frame */
   .exit.text : { *(.exit.text) }
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 93f8a8f..00e1a1c 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -604,19 +604,16 @@ ccio_io_pdir_entry(u64 *pdir_ptr, space_
 	((u32 *)pdir_ptr)[0] = (u32) pa;
 
 
-	/* FIXME: PCX_W platforms don't need FDC/SYNC. (eg C360)
-	**        PCX-U/U+ do. (eg C200/C240)
-	**        PCX-T'? Don't know. (eg C110 or similar K-class)
-	**
-	** See PDC_MODEL/option 0/SW_CAP word for "Non-coherent IO-PDIR bit".
+	/* See PDC_MODEL/option 0/SW_CAP word for "Non-coherent IO-PDIR bit".
 	** Hopefully we can patch (NOP) these out at boot time somehow.
 	**
 	** "Since PCX-U employs an offset hash that is incompatible with
 	** the real mode coherence index generation of U2, the PDIR entry
 	** must be flushed to memory to retain coherence."
 	*/
-	asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
-	asm volatile("sync");
+	pdc_capability_altinput("nop", "fdc %%r0(%2)", PDC_MODEL_IOPDIR_FDC,
+				"r"(pdir_ptr) : "memory");
+	pdc_capability_alt("nop", "sync", PDC_MODEL_IOPDIR_FDC);
 }
 
 /**
@@ -678,21 +675,14 @@ ccio_mark_invalid(struct ioc *ioc, dma_a
 
 		BUG_ON(idx >= (ioc->pdir_size / sizeof(u64)));
 		pdir_ptr[7] = 0;	/* clear only VALID bit */ 
-		/*
-		** FIXME: PCX_W platforms don't need FDC/SYNC. (eg C360)
-		**   PCX-U/U+ do. (eg C200/C240)
-		** See PDC_MODEL/option 0/SW_CAP for "Non-coherent IO-PDIR bit".
-		**
-		** Hopefully someone figures out how to patch (NOP) the
-		** FDC/SYNC out at boot time.
-		*/
-		asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
+		pdc_capability_altinput("nop", "fdc %%r0(%2)", 
+					PDC_MODEL_IOPDIR_FDC, "r"(pdir_ptr[7]) : "memory");
 
 		iovp     += IOVP_SIZE;
 		byte_cnt -= IOVP_SIZE;
 	}
 
-	asm volatile("sync");
+        pdc_capability_alt("nop", "sync", PDC_MODEL_IOPDIR_FDC);
 	ccio_clear_io_tlb(ioc, CCIO_IOVP(iova), saved_byte_cnt);
 }
 
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 5d47c59..ca4e4e3 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -39,6 +39,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 
+#include <asm/system.h>		/* for instruction patching */
 #include <asm/runway.h>		/* for proc_runway_root */
 #include <asm/pdc.h>		/* for PDC_MODEL_* */
 #include <asm/pdcpat.h>		/* for is_pdc_pat() */
@@ -285,8 +286,6 @@ struct sba_device {
 
 static struct sba_device *sba_list;
 
-static unsigned long ioc_needs_fdc = 0;
-
 /* global count of IOMMUs in the system */
 static unsigned int global_ioc_cnt = 0;
 
@@ -745,8 +744,8 @@ sba_io_pdir_entry(u64 *pdir_ptr, space_t
 	 * (bit #61, big endian), we have to flush and sync every time
 	 * IO-PDIR is changed in Ike/Astro.
 	 */
-	if (ioc_needs_fdc)
-		asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
+	pdc_capability_altinput("nop", "fdc %%r0(%2)", PDC_MODEL_IOPDIR_FDC, 
+				"r"(pdir_ptr) : "memory");
 }
 
 
@@ -786,25 +785,13 @@ sba_mark_invalid(struct ioc *ioc, dma_ad
 
 	if (byte_cnt > IOVP_SIZE)
 	{
-#if 0
-		unsigned long entries_per_cacheline = ioc_needs_fdc ?
-				L1_CACHE_ALIGN(((unsigned long) pdir_ptr))
-					- (unsigned long) pdir_ptr;
-				: 262144;
-#endif
-
 		/* set "size" field for PCOM */
 		iovp |= get_order(byte_cnt) + PAGE_SHIFT;
 
 		do {
 			/* clear I/O Pdir entry "valid" bit first */
 			((u8 *) pdir_ptr)[7] = 0;
-			if (ioc_needs_fdc) {
-				asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
-#if 0
-				entries_per_cacheline = L1_CACHE_SHIFT - 3;
-#endif
-			}
+			pdc_capability_altinput("nop", "fdc %%r0(%2)", PDC_MODEL_IOPDIR_FDC, "r"(pdir_ptr) : "memory");
 			pdir_ptr++;
 			byte_cnt -= IOVP_SIZE;
 		} while (byte_cnt > IOVP_SIZE);
@@ -819,8 +806,8 @@ sba_mark_invalid(struct ioc *ioc, dma_ad
 	** could dump core on HPMC.
 	*/
 	((u8 *) pdir_ptr)[7] = 0;
-	if (ioc_needs_fdc)
-		asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr));
+        pdc_capability_altinput("nop", "fdc %%r0(%2)", 
+				PDC_MODEL_IOPDIR_FDC, "r"(pdir_ptr) : "memory");
 
 	WRITE_REG( SBA_IOVA(ioc, iovp, 0, 0), ioc->ioc_hpa+IOC_PCOM);
 }
@@ -927,8 +914,7 @@ sba_map_single(struct device *dev, void 
 	}
 
 	/* force FDC ops in io_pdir_entry() to be visible to IOMMU */
-	if (ioc_needs_fdc)
-		asm volatile("sync" : : );
+        pdc_capability_alt("nop", "sync", PDC_MODEL_IOPDIR_FDC);
 
 #ifdef ASSERT_PDIR_SANITY
 	sba_check_pdir(ioc,"Check after sba_map_single()");
@@ -998,8 +984,7 @@ sba_unmap_single(struct device *dev, dma
 	sba_free_range(ioc, iova, size);
 
 	/* If fdc's were issued, force fdc's to be visible now */
-	if (ioc_needs_fdc)
-		asm volatile("sync" : : );
+	pdc_capability_alt("nop", "sync", PDC_MODEL_IOPDIR_FDC);
 
 	READ_REG(ioc->ioc_hpa+IOC_PCOM);	/* flush purges */
 #endif /* DELAYED_RESOURCE_CNT == 0 */
@@ -1147,8 +1132,8 @@ sba_map_sg(struct device *dev, struct sc
 	filled = iommu_fill_pdir(ioc, sglist, nents, 0, sba_io_pdir_entry);
 
 	/* force FDC ops in io_pdir_entry() to be visible to IOMMU */
-	if (ioc_needs_fdc)
-		asm volatile("sync" : : );
+        pdc_capability_alt("nop", "sync", PDC_MODEL_IOPDIR_FDC);
+
 
 #ifdef ASSERT_PDIR_SANITY
 	if (sba_check_pdir(ioc,"Check after sba_map_sg()"))
@@ -1877,7 +1862,6 @@ sba_common_init(struct sba_device *sba_d
 	}
 
 	spin_lock_init(&sba_dev->sba_lock);
-	ioc_needs_fdc = boot_cpu_data.pdc.capabilities & PDC_MODEL_IOPDIR_FDC;
 
 #ifdef DEBUG_SBA_INIT
 	/*
diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h
index a5a973c..180fe0e 100644
--- a/include/asm-parisc/system.h
+++ b/include/asm-parisc/system.h
@@ -2,6 +2,7 @@
 #define __PARISC_SYSTEM_H
 
 #include <linux/config.h>
+#include <linux/types.h>
 #include <asm/psw.h>
 
 /* The program status word as bitfields.  */
@@ -146,6 +147,59 @@ static inline void set_eiem(unsigned lon
 #define set_mb(var, value)		do { var = value; mb(); } while (0)
 #define set_wmb(var, value)		do { var = value; wmb(); } while (0)
 
+/* Runtime overwritten alternate instructions */
+struct alt_instr {
+	u32 *instr;		/* original */
+	u32 *replacement;
+	unsigned long flag;
+	unsigned long reason;	/* pad to 4*sizeof(unsigned long) */
+};
+
+#ifdef __LP64__
+#define ALT_INSTR_ALIGN	"8"
+#define ALT_INSTR_TYPE	".quad"	/* grr, .long doesn't work */
+#else
+#define ALT_INSTR_ALIGN "4"
+#define ALT_INSTR_TYPE	".word"
+#endif /* __LP64__ */
+
+/* values for alt_instr.reason */
+#define ALT_PDC_CAPABILITY	1
+
+#define alternative(oldinstr, newinstr, flag, reason)		\
+	asm volatile ("661:\n\t" oldinstr "\n662:\n"		\
+		      ".section .altinstructions,\"a\"\n"	\
+		      "  .align " ALT_INSTR_ALIGN "\n"		\
+		      "  " ALT_INSTR_TYPE " 661b\n"		\
+		      "  " ALT_INSTR_TYPE " 663f\n"		\
+		      "  " ALT_INSTR_TYPE " %0\n"		\
+		      "  " ALT_INSTR_TYPE " %1\n"		\
+		      ".previous\n"				\
+		      ".section .altinstr_replacement,\"ax\"\n"	\
+		      "  .align 4\n"				\
+		      "663:\n\t" newinstr "\n664:\n"		\
+		      ".previous" :: "i"(flag), "i"(reason)	\
+		        : "memory")
+
+#define alternative_input(oldinstr, newinstr, flag, reason, input...)	\
+        asm volatile ("661:\n\t" oldinstr "\n662:\n"			\
+                      ".section .altinstructions,\"a\"\n"		\
+                      "  .align " ALT_INSTR_ALIGN "\n"			\
+		      "  " ALT_INSTR_TYPE " 661b\n"			\
+		      "  " ALT_INSTR_TYPE " 663f\n"			\
+		      "  " ALT_INSTR_TYPE " %0\n"			\
+		      "  " ALT_INSTR_TYPE " %1\n"			\
+                      ".previous\n"					\
+                      ".section .altinstr_replacement,\"ax\"\n"		\
+		      "  .align 4\n"					\
+                      "663:\n\t" newinstr "\n664:\n"			\
+                      ".previous" :: "i" (flag), "i" (reason), 		\
+		        ## input)
+
+#define pdc_capability_alt(old, new, flag) 			\
+		alternative(old, new, flag, ALT_PDC_CAPABILITY)
+#define pdc_capability_altinput(old, new, flag, input...) 	\
+		alternative_input(old, new, flag, ALT_PDC_CAPABILITY, input)
 
 #ifndef CONFIG_PA20
 /* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
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Subject: Re: [parisc-linux] alternate insn for parisc (ccio/sba)
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On Fri, Mar 03, 2006 at 03:14:28PM -0500, Kyle McMartin wrote:
> Finally got around to making this work. I don't want to commit it yet,
> as I still haven't decided I like using the x86-esque interface for
> deciding to patch. And the names of some of the things are kind of lame.

Sure...but overall it looks good.

> Someone looking it over would be nice. Ten poins if someone can find
> another use for this that justifies making it as generic as it is.

Anyplace we use asm that could be different for PA20 vs PA11.
__ffs() in include/asm/bitops.h probaby isn't the best example
but it might be good enough to give an idea.
Ie kernel built for PA11 could be optimized for PA20-32bit.

> Also, if you want to test it, you'll need to remove the & ~_PAGE_WRITE from
> PAGE_KERNEL_RO in asm/pgtable.h until we write protect the kernel at a
> later stage.

hrm...are kernel modules loaded into write protected space as well?
If so, then we can't apply this to kernel modules...would kinda limit
how it could be used. E.g. we couldn't get rid of dma_ops indirect
calls.

> -	/* FIXME: PCX_W platforms don't need FDC/SYNC. (eg C360)
> -	**        PCX-U/U+ do. (eg C200/C240)
> -	**        PCX-T'? Don't know. (eg C110 or similar K-class)
> -	**
> -	** See PDC_MODEL/option 0/SW_CAP word for "Non-coherent IO-PDIR bit".

I'd like to save the comments that specify which CPU/platforms need
certain ops. We need these comments to document which platforms/CPUs
needs to be tested if something related changes.
Can you add leave them someplace in ccio/sba code?

>  	** Hopefully we can patch (NOP) these out at boot time somehow.

This commnent could be deleted though. :)

> +#include <asm/system.h>                /* for instruction patching */

Can we put instruction patching declarations in a new header file?
system.h is way overloaded already.

very cool! ++kyle. :)

grant
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On Fri, Mar 03, 2006 at 05:38:02PM -0700, Grant Grundler wrote:
> Anyplace we use asm that could be different for PA20 vs PA11.
> __ffs() in include/asm/bitops.h probaby isn't the best example
> but it might be good enough to give an idea.
> Ie kernel built for PA11 could be optimized for PA20-32bit.
>

*nod* 

> hrm...are kernel modules loaded into write protected space as well?
> If so, then we can't apply this to kernel modules...would kinda limit
> how it could be used. E.g. we couldn't get rid of dma_ops indirect
> calls.
>

Unfortunately, this can't directly be applied to modules. It could
though, be extended by exporting the code, and hacking it into the module
loader, I imagine.
 
> > -	/* FIXME: PCX_W platforms don't need FDC/SYNC. (eg C360)
> > -	**        PCX-U/U+ do. (eg C200/C240)
> > -	**        PCX-T'? Don't know. (eg C110 or similar K-class)
> > -	**
> > -	** See PDC_MODEL/option 0/SW_CAP word for "Non-coherent IO-PDIR bit".
> 
> I'd like to save the comments that specify which CPU/platforms need
> certain ops. We need these comments to document which platforms/CPUs
> needs to be tested if something related changes.
> Can you add leave them someplace in ccio/sba code?
> 

Will do.

> Can we put instruction patching declarations in a new header file?
> system.h is way overloaded already.
> 

Yeah, touching system.h sucks too, as it causes basically everything
to be rebuilt.

> very cool! ++kyle. :)
>

Thanks,
	Kyle 
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Subject: Re: [parisc-linux] alternate insn for parisc (ccio/sba)
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Xref: news.gmane.org gmane.linux.ports.parisc:23437

> Anyplace we use asm that could be different for PA20 vs PA11.
> __ffs() in include/asm/bitops.h probaby isn't the best example
> but it might be good enough to give an idea.
> Ie kernel built for PA11 could be optimized for PA20-32bit.

Just my 2 cents, but unless it is code that is performance critical and
we can demonstrate a significant difference on a particular measurement,
and it is not something that can be determined at compile time, I think
we should do runtime code patching sparingly. If nothing else, it makes
the code harder to read and perhaps to debug.

>> Also, if you want to test it, you'll need to remove the & ~_PAGE_WRITE from
>> PAGE_KERNEL_RO in asm/pgtable.h until we write protect the kernel at a
>> later stage.

Right - it seems we should re-map the kernel read-only after you patch
the insns.

> very cool! ++kyle. :)

it is cool, thanks for working on this, Kyle.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] confirme: bug in arg checking in clone.S
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Hello Mike and list,

Mike Frysinger wrote:
> for some reason the attached test case (originally from LTP) segfaults on 
> glibc/hppa systems ... every other arch ive tested on works fine ...
> 
Ok I find this LTP Stuff.
# ./clone04
clone04     1  BROK  :  Unexpected signal 11 received.


Effectively, as the comment said:
  * DESCRIPTION
  *      Verify that,
  *      clone(2) returns -1 and sets errno to EINVAL if
  *      child stack is set to a zero value(NULL)

Also as your subject better explain, the hppa implementation didn't do a "Sanity check arguments" (as other arch does).

Can somebody could check this patch proposal:
--- ./sysdeps/unix/sysv/linux/hppa/clone.S.Orig 2006-01-14 17:48:33.000000000 +0000
+++ ./sysdeps/unix/sysv/linux/hppa/clone.S      2006-03-04 19:46:03.000000000 +0000
@@ -46,6 +46,11 @@
          .text
  ENTRY(__clone)

+       /* Sanity check arguments.  */
+       ldi     -EINVAL, %ret0
+       comib,=,n       0,%r26,.Lerror  /* no NULL function pointers */
+       comib,=,n       0,%r25,.Lerror  /* no NULL stack pointers */
+
         /* Save the fn ptr and arg on the new stack.  */
         stwm    %r26,64(%r25)
         stw     %r23,-60(%r25)
====<>====

(Not sure I didn't miss some nop in delay slot on comib?)

Thanks in advance,
	Joel
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On Fri, Mar 03, 2006 at 05:38:02PM -0700, Grant Grundler wrote:
> hrm...are kernel modules loaded into write protected space as well?
> If so, then we can't apply this to kernel modules...would kinda limit
> how it could be used. E.g. we couldn't get rid of dma_ops indirect
> calls.
>

I just got an idea for fixing the indirect calls style thing... Would it
be possible to do "run time" relocation of certain indirect calls if we
know they won't ever differ for a given kernel boot? I guess it wouldn't
be too terribly difficult if the linker would just leave certain relocations
unprocessed, and make sure all possible, for example, dma_ops function
pointers were reachable from the given stub? 
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On Sat, Mar 04, 2006 at 11:21:41AM +0800, Randolph Chung wrote:
> Just my 2 cents, but unless it is code that is performance critical and
> we can demonstrate a significant difference on a particular measurement,
> and it is not something that can be determined at compile time, I think
> we should do runtime code patching sparingly. If nothing else, it makes
> the code harder to read and perhaps to debug.

Agreed. I was just stretching a bit to find an example.

cheers,
grant
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On Mon, Mar 06, 2006 at 11:05:15AM -0500, Kyle McMartin wrote:
> I just got an idea for fixing the indirect calls style thing... Would it
> be possible to do "run time" relocation of certain indirect calls if we
> know they won't ever differ for a given kernel boot?

dma_ops table doesn't change once it's initialized.
But I've still got Randolph's caution rattling around in my head.

>  I guess it wouldn't
> be too terribly difficult if the linker would just leave certain relocations
> unprocessed, and make sure all possible, for example, dma_ops function
> pointers were reachable from the given stub? 

dma_ops map/unmap calls are in performance critical code path.
It would be helpful to get rid of the indirect dma_ops calls IFF the
resulting code is supportable. ie the average driver writer needs
to be able to follow it.

thanks,
grant
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Subject: [parisc-linux] Bug report: 2.6.15 crash when accessing nbd on a 712.
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This is a multi-part message in MIME format.
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Hi!

I have a 712 workstation at home and try to make it a diskless debian 
station.

I have other diskless machines where I do swap over nbd without problem 
(debian 2.6.15). I tried the same on the hp, but accessing /dev/nb0 
results in a crash.

I tried to have nbd in module or not, but this does not change anything.

I do not have the skills to go any further but do a bug report. If you 
need more informations just ask, I'd be glad to provide them.

Thanks in advance for any help.

Best regards,

     -- Vincent Stehl


--- BUG REPORT ---

# Version of the kernel you are running (output of the uname -a command)

Linux hp 2.6.15.060305 #3 Mon Mar 6 00:32:17 CET 2006 parisc GNU/Linux

# What compiler and linker did you use to build the kernel? (gcc 3.0.4? 
3.2? What version of binutils? Are you cross-compiling?)

vincent@hp:vincent$ gcc -v
Reading specs from /usr/lib/gcc-lib/hppa-linux/3.3.5/specs
Configured with: ../src/configure -v 
--enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr 
--mandir=/usr/share/man --infodir=/usr/share/info 
--with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared 
--enable-__cxa_atexit --with-system-zlib --enable-nls 
--without-included-gettext --enable-sjlj-exceptions --enable-clocale=gnu 
--enable-debug --enable-java-gc=boehm --enable-java-awt=xlib 
--enable-objc-gc hppa-linux
Thread model: posix
gcc version 3.3.5 (Debian 1:3.3.5-13)

# What machine you are booting the kernel on? (712/80? B132L? C3000?)

712/100

# Does it have a remote management card?

I don't know.

# Are you trying to use serial console or graphics console?

Serial console @9600 baud. Works fine.

# What kernel command line is palo using?

--commandline=0/vmlinux HOME=/ root=/dev/nfs nfsroot=/hp-root ip=::::::

# Are you using a 32-bit or 64-bit kernel

32-bit.

# Register dumps - Usually, when a parisc-linux kernel crashes (or 
encounters a problem), a register dump (and/or a stack dump -- 
especially in 2.6 kernels) will be displayed on the console, or logged 
to syslog. You should include this information in your bug report.

(see attached hppa-crash.txt)

# The System.map file that corresponds to the kernel you are booting - 
it's preferable if you can put it someplace and supply a URL for it. If 
not, please bzip the file before sending it to the list

(see attached System.map-2.6.15.060305.bz2)

# Console output immediately preceding the crash or problem you observed

(see attached hppa-crash.txt)

# If you are not using a default config, the .config you used to build 
your kernel

(see attached config.bz2)

-- 
Vincent Stehl

--------------050809080604040400070904
Content-Type: text/plain;
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Content-Transfer-Encoding: 7bit
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Debian GNU/Linux 3.1 hp ttyS0

hp login: i root
Password: 
Last login: Thu May 26 21:12:18 2005 on ttyS0
Linux hp 2.6.15.060305 #3 Mon Mar 6 00:32:17 CET 2006 parisc GNU/Linux

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
hp:~# nbd-client rikiki 12347 /dev/nb0
Negotiation: ..size = 65536KB
bs=1024, sz=65536
hp:~# mk  dd if=/dev/nb0 of=/dev/null
Backtrace:
 [<10159c60>] __blk_queue_bounce+0x200/0x28c
 [<1021e278>] __make_request+0x74/0x53c
 [<1021e8e0>] generic_make_request+0xf8/0x160
 [<1021e9b0>] submit_bio+0x68/0x130
 [<10172f74>] submit_bh+0x10c/0x1b8
 [<10171d78>] block_read_full_page+0x1e0/0x32c
 [<10152784>] read_pages+0xc4/0x164
 [<101528e0>] __do_page_cache_readahead+0xbc/0x1ac
 [<10152b94>] blockable_page_cache_readahead+0x68/0xe0
 [<10152e08>] page_cache_readahead+0x140/0x1a8
 [<1014b37c>] do_generic_mapping_read+0x47c/0x4b4
 [<1014b6c8>] __generic_file_aio_read+0x1ac/0x1cc
 [<1014b7f0>] generic_file_read+0x88/0xb0
 [<1016d804>] vfs_read+0xe0/0x1ac
 [<1016dbfc>] sys_read+0x5c/0xa8
 [<1010d114>] syscall_exit+0x0/0x14


Kernel Fault: Code=26 regs=16b249c0 (Addr=0000000c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111 Not tainted
r00-03  00000000 10231000 10159c60 00011210
r04-07  00000000 00011200 00000000 10549720
r08-11  16b24818 00000000 1070d4c0 103fe010
r12-15  00000000 10000000 103fe010 101768bc
r16-19  16b242c8 1052f0a0 00000001 ffffffaf
r20-23  10173734 1054b390 1054b39c 00000000
r24-27  00000000 00000010 00000000 10359010
r28-31  10549720 00000000 16b249c0 1014e0e0
sr0-3   00000000 00000000 00000000 00000116
sr4-7   00000000 00000000 00000000 00000000

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00001000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  107172c010681874 0000000010182cac 4a5e8e00103f2848 10095aa810369894
fr08-11  0000000300000000 107172c043f02aa9 00000002103f2810 3b9aca0010369b38
fr12-15  103ea810103b3810 103eb0001017cbbc 1036b66c0000000f 1036b66c10429d40
fr16-19  fffffff4103f35e3 103f301010305384 1009009c1030538f 4a5e8e00103f2848
fr20-23  10095aa810369894 10369a081016c97c 3eb0c6f7a0b5ed8d 440cb1830000000a
fr24-27  41d1032c60ec8bca 3fe645e4e69f05ea 412e848000000000 000000084a5e8e00
fr28-31  0000002010526000 000000001016ca9c 0000000000000000 0000000000000000

IASQ: 00000000 00000000 IAOQ: 1014e0cc 1014e0d0
 IIR: 0c981099    ISR: 00000000  IOR: 0000000c
 CPU:        0   CR30: 16b24000 CR31: 103ac000
 ORIG_R28: 1013ee3c
 IAOQ[0]: mempool_alloc+0x34/0xfc
 IAOQ[1]: mempool_alloc+0x38/0xfc
 RP(r2): __blk_queue_bounce+0x200/0x28c
Kernel panic - not syncing: Kernel Fault
 <0>Rebooting in 60 seconds..
--------------050809080604040400070904
Content-Type: application/x-bzip2;
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Content-Transfer-Encoding: base64
Content-Disposition: inline;
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Subject: Re: [parisc-linux] Bug report: 2.6.15 crash when accessing nbd on a
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On Mon, Mar 06, 2006 at 11:35:53PM +0100, Vincent Stehl? wrote:
> I tried to have nbd in module or not, but this does not change anything.
>

Grant and I fixed this a couple weeks ago:
http://cvs.parisc-linux.org/linux-2.6/arch/parisc/mm/init.c?r1=1.22&r2=1.23

Please try a newer kernel, such as this one:
http://cvs.parisc-linux.org/download/linux-2.6/autobuild/712_defconfig/palinux-712-defconfig-2.6.15-pa4_0-2_all.deb

Cheers,
	Kyle 
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Subject: Re: [parisc-linux] Bug report: 2.6.15 crash when accessing nbd on a
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On Thu, Mar 09, 2006 at 10:47:50AM -0500, Kyle McMartin wrote:
> On Mon, Mar 06, 2006 at 11:35:53PM +0100, Vincent Stehl? wrote:
> > I tried to have nbd in module or not, but this does not change anything.
> >
> 
> Grant and I fixed this a couple weeks ago:
> http://cvs.parisc-linux.org/linux-2.6/arch/parisc/mm/init.c?r1=1.22&r2=1.23

Kyle,
But the 712 doesn't have an IOMMU.
Comment in the diff says:
	/* IOMMU is always used to access "high mem" on those boxes
	* that can support enough mem that a PCI device couldn't
	* directly DMA to any physical addresses.
	* ISA DMA support will need to revisit this.
	*/

> Please try a newer kernel, such as this one:
> http://cvs.parisc-linux.org/download/linux-2.6/autobuild/712_defconfig/palinux-712-defconfig-2.6.15-pa4_0-2_all.deb

Vincent,
In case the newer kernel doesn't take care of it, can you manually copy
down a few key lines of the panic: panic reason, IOAQ, top three lines
of stack backtrace, gr24, gr25, gr26.

thanks,
grant
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Subject: Re: [parisc-linux] Bug report: 2.6.15 crash when accessing nbd on
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Kyle, Grant,

Thank you for your concern. I'll (hopefully) try the kernel you suggest 
next week-end.

Grant Grundler wrote:
> In case the newer kernel doesn't take care of it, can you manually copy
> down a few key lines of the panic: panic reason, IOAQ, top three lines
> of stack backtrace, gr24, gr25, gr26.

Certainly,

But don't you prefer the full log, like I attached to my first post? 
Just wondering...

Best regards,

-- 
Vincent Stehl
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Subject: Re: [parisc-linux] Bug report: 2.6.15 crash when accessing nbd on a
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On Thu, Mar 09, 2006 at 10:58:10PM +0100, Vincent Stehl? wrote:
> But don't you prefer the full log, like I attached to my first post? 
> Just wondering...

Yes, please. I didn't realize you had attachments. Looking at them now.
And it's better to NOT compress them since they aren't that big and
can't be searched later.

thanks,
grant
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Subject: Re: [parisc-linux] Bug report: 2.6.15 crash when accessing nbd on
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Kyle, Grant,

I took your -pa4 patch, applied it over the debian 2.6.15 sources, 
recompiled with nbd and it works fine. I can now swap over nbd.

Thank you very much for your help!

-- 
Vincent Stehl
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Xref: news.gmane.org gmane.linux.ports.parisc:23448

On Wednesday 08 March 2006 08:37, Grant Grundler wrote:
> On Tue, Mar 07, 2006 at 10:27:37PM +0100, Helge Deller wrote:
> > Attached is the patch.
> > I still think we should try to get real ioremapping working.
> > I'm no Linux-Kernel-memory-expert, but my plan was to read about it and learn.
> > Currently, if I enable CONFIG_HPPA_IOREMAP the 64bit kernel crashes
> > in sba_iommu.c: sba_driver_callback() after the first ioremap().
> > Maybe others here want to try as well ?
> 
> Yes, I have. It crashed in exactly the same location.
> But I don't understand the VM magic needed to make this work either.

I did some more testing and analysis on this problem.
(I even for the first time did some reading on Linux kernel memory management to understand all that pgd, pmd, pte stuff :-))

Here is my current analysis.
Maybe someone with a better understanding might have some idea on what's going on ?

drivers/parisc/sba_iommu.c does the following on my machine:
        void __iomem *sba_addr;
        sba_addr = ioremap(0xfffffffffed00000, 4096);  /* 0xfffffffffed00000 is hpa of Astro BC Runway Port at 0xfffffffffed00000 [10] */
        func_class = * (volatile unsigned long long *) (sba_addr + 8);

Here is the important part of the bootlog:

Linux version 2.6.16-rc5-pa2 (root@p100) (gcc version 3.4.3) #21 Sun Mar 12 13:43:30 CET 2006
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
Found devices:
1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. Allegro W2 at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
7. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
Setting cache flush threshold to 3ba6c0 (1 CPUs online)

hpa start = fffffffffed00000 size=4096    <<<<<< this is the Astro BC
IOREMAP: phys_addr=fffffffffed00000, offset = 0, size=4096
IOREMAP: addr = 0000000000008000         <<<<< the new vm area ( fffffffffed00000(phys) will be mapped to 0x8000(virt))
set_pte: virtual:8000 -> phys=fffffffffed00000, pte=fffffffffed00283  << here is the pte entry which ioremap() generates.

The pte value seems right, and the __pgprot flags which I used were: _PAGE_PRESENT | _PAGE_RW | _PAGE_NO_CACHE;

So, in my opinion, ioremap() does technically the right thing.
Nevertheless, when reading the quadword from (virt) 0x8000+8 it crashes ("A Data Miss Timeout"? - see HPMC log).

Below is the PIM HPMC output.
Looking at the log, it seems that the pte was (mostly?) right, since
the System Responder Address below is 0xfffffffffed10200.
Although I don't understand why it was 0xfffffffffed10200 and not 0xfffffffffed00008 ?

Any ideas ?

Helge

-----------------  Processor 0 HPMC Information ------------------
Timestamp =
  Sun Mar  12 13:12:54 GMT 2006    (20:06:03:12:13:12:54)

HPMC Chassis Codes = 2cbf0  2500b  2cbf4  2cbfc

General Registers 0 - 31
00-03   0000000000000000  0000000010604920  000000001027a738  000000008fc4a400
04-07   0000000010601920  0000000010576690  0000000000008000  00000000105766b8
08-11   0000000010673380  0000000000000000  000f41fa3d8dea40  00000000105673a8
12-15   000000003b9aca00  00000000ffffffff  0000000000000000  00000000f0400004
16-19   000000008fc4a400  00000000f000017c  00000000f0000174  0000000010567b50
20-23   0000000000000000  0000000000000001  000000000000093c  000000000067123c
24-27   ffffffffffffffff  0000000000000001  0000000010567b50  0000000010601920
28-31   0000000000000018  000000008fc24b30  000000008fc24890  0000000000000060

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  00000000000000c0  0000000000000024
12-15   0000000000000000  0000000000000000  0000000000103000  8000000000000000
16-19   00000009653d8c30  0000000000000000  000000001027a738  000000000cd010d3
20-23   000000000035fffb  0000000040008008  000000000804000f  8000000000000000
24-27   000000000055d000  000000000055d000  00000000ffffffff  00000000ffffffff
28-31   00000000ffffffff  00000000ffffffff  000000008fc24000  00000000105b4000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x000000001027a73c
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x003010bb
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00031800
System Responder Address     = 0xfffffffffed10200
System Requestor Address     = 0xfffffffffffa0000

'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81041000000000
Available Memory             = 0x0000000080000000
CPU Diagnose Register 2      = 0x0301000000802004
CPU Status Register 0        = 0x2020c20000000000
CPU Status Register 1        = 0x8080000000000000
SADD LOG                     = 0x2b0a10000fc212c1
Read Short LOG               = 0xc18040fffee003fd
ERROR_STATUS                 = 0x0000000000000010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0xc1bff0fffed08040
RUN_DATA_LOW                 = 0xc1bff0fffed08040
RUN_CTRL                     = 0x0000021c00002a1c
RUN_ADDR                     = 0xc1bff0fffed08040
System Responder Path        = 0x00ffffffffffffff

HPMC PIM Analysis Information:
Timestamp =
  Sun Mar  12 13:12:54 GMT 2006    (20:06:03:12:13:12:54)
'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

A Data Miss Timeout occurred while CPU 0 was
requesting information.


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not log
any additional information about the HPMC.

Memory Error Log Information:
Timestamp =
  Sun Mar  12 13:12:54 GMT 2006    (20:06:03:12:13:12:54)

'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:

   No memory errors logged

I/O Module Error Log Information:
Timestamp =
  Sun Mar  12 13:12:54 GMT 2006    (20:06:03:12:13:12:54)

'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc009   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    0x00000000   0x4e0cc009   0x00000000fed38048
   5    ----------   0x5e0cc009   ------------------
   6    0x00000000   0x6e0cc009   0x00000000fed3c048
   7    ----------   0x7e0cc009   ------------------
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Xref: news.gmane.org gmane.linux.ports.parisc:23449

> r22 should be pointing to a function descriptor and have the plabel
> bit set.  It's a relative rare situation when an indirect call can
> be made directly (no shared libraries).

I know, but that's not what's happening....

__do_global_ctors_aux() looks like this:

static void __attribute__((used))
__do_global_ctors_aux (void)
{
   func_ptr *p;
   for (p = __CTOR_END__ - 1; *p != (func_ptr) -1; p--)
     (*p) ();
}

what i'm seeing is that we are calling the copy of this function in 
liba1.so, and loading __CTOR_END__ via the GOT, but we are using an r19 
value that is pointing inside libgcj.so, so we end up loading some wrong 
value for __CTOR_END__

I don't know how/why this is happening though. how does this bit work? 
each .so has its own copy of __do_global_ctors_aux(); how does this get 
called and where does it setup r19 for each .so before this gets called?

randolph
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Subject: Re: [parisc-linux] Re: gcj can't make shared libs on hppa
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> static void __attribute__((used))
> __do_global_ctors_aux (void)
> {
>    func_ptr *p;
>    for (p = __CTOR_END__ - 1; *p != (func_ptr) -1; p--)
>      (*p) ();
> }
> 
> what i'm seeing is that we are calling the copy of this function in 
> liba1.so, and loading __CTOR_END__ via the GOT, but we are using an r19 
> value that is pointing inside libgcj.so, so we end up loading some wrong 
> value for __CTOR_END__
> 
> I don't know how/why this is happening though. how does this bit work? 
> each .so has its own copy of __do_global_ctors_aux(); how does this get 
> called and where does it setup r19 for each .so before this gets called?

The dynamic loader calls _init in the .init section when it loads
a shared library.  It's also supposed to process the .init_array
section but that's not being used.

Disassembly of section .init:

00000824 <_init-0x10>:
 824:   2a 7f ff ff     addil L%-800,r19,r1
 828:   48 35 0f b8     ldw 7dc(r1),r21
 82c:   ea a0 c0 00     bv r0(r21)
 830:   48 33 0f c0     ldw 7e0(r1),r19

00000834 <_init>:
 834:   6b c2 3f d9     stw rp,-14(sp)
 838:   6f c4 00 80     stw,ma r4,40(sp)
 83c:   6b d3 3f c1     stw r19,-20(sp)
 840:   e8 5f 1f bd     b,l 824 <_init-0x10>,rp
 844:   08 13 02 44     copy r19,r4
 848:   08 04 02 53     copy r4,r19
 84c:   e8 40 01 f0     b,l 94c <frame_dummy>,rp
 850:   08 00 02 40     nop
 854:   e8 40 05 c0     b,l b3c <__do_global_ctors_aux>,rp
 858:   08 00 02 40     nop
 85c:   4b c2 3f 59     ldw -54(sp),rp
 860:   08 04 02 53     copy r4,r19
 864:   e8 40 c0 00     bv r0(rp)

00000868 <_end_init>:
 868:   4f c4 3f 81     ldw,mb -40(sp),r4

_init comes from the crt files in glibc.  The code at 824 is an
import stub which appears to be provided by ld.  So, if r19 is wrong,
it would seem the relocations in the import stub used to load the
new r19 value must be wrong.  I'm not sure how _init manages to call
the stub.  That's a bit unusual.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: gcj can't make shared libs on hppa
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>  84c:   e8 40 01 f0     b,l 94c <frame_dummy>,rp
>  850:   08 00 02 40     nop

I just noticed that r19 is not restored after the call to frame_dummy.
It's clobbering r19.

>  854:   e8 40 05 c0     b,l b3c <__do_global_ctors_aux>,rp
>  858:   08 00 02 40     nop
>  85c:   4b c2 3f 59     ldw -54(sp),rp
>  860:   08 04 02 53     copy r4,r19
>  864:   e8 40 c0 00     bv r0(rp)
> 
> 00000868 <_end_init>:
>  868:   4f c4 3f 81     ldw,mb -40(sp),r4
> 
> _init comes from the crt files in glibc.  The code at 824 is an
> import stub which appears to be provided by ld.  So, if r19 is wrong,
> it would seem the relocations in the import stub used to load the
> new r19 value must be wrong.  I'm not sure how _init manages to call
> the stub.  That's a bit unusual.

Doh, it's actually just a call to __gmon_start__ ().

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: gcj can't make shared libs on hppa
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> >  84c:   e8 40 01 f0     b,l 94c <frame_dummy>,rp
> >  850:   08 00 02 40     nop
> 
> I just noticed that r19 is not restored after the call to frame_dummy.
> It's clobbering r19.

You know, this function is a real hack.  Part of it comes from
crti.o, part from GCC's crtstuff.c and part from crtn.o.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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Subject: Re: [parisc-linux] Re: gcj can't make shared libs on hppa
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>  83c:   6b d3 3f c1     stw r19,-20(sp)
>  840:   e8 5f 1f bd     b,l 824 <_init-0x10>,rp
>  844:   08 13 02 44     copy r19,r4
>  848:   08 04 02 53     copy r4,r19
>  84c:   e8 40 01 f0     b,l 94c <frame_dummy>,rp
>  850:   08 00 02 40     nop
>  854:   e8 40 05 c0     b,l b3c <__do_global_ctors_aux>,rp
>  858:   08 00 02 40     nop
>  85c:   4b c2 3f 59     ldw -54(sp),rp
>  860:   08 04 02 53     copy r4,r19
>  864:   e8 40 c0 00     bv r0(rp)

I'm testing the attached fix.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: config/pa/pa32-linux.h
===================================================================
--- config/pa/pa32-linux.h	(revision 111979)
+++ config/pa/pa32-linux.h	(working copy)
@@ -1,5 +1,5 @@
 /* Definitions for PA_RISC with ELF-32 format
-   Copyright (C) 2000, 2002, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2002, 2004, 2006 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -36,4 +36,29 @@
 		    aligned(sizeof(func_ptr))))				\
     = { (func_ptr) (-1) }
 
+/* This is a PIC version of CRT_CALL_STATIC_FUNCTION.  The PIC
+   register has to be saved before the call and restored after
+   the call.  We assume that register %r4 is available for this
+   purpose.  The hack prevents GCC from deleting the restore.  */
+#ifdef CRTSTUFFS_O
+#undef CRT_CALL_STATIC_FUNCTION
+#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC)	\
+static void __attribute__((__used__))			\
+call_ ## FUNC (void)					\
+{							\
+  asm (SECTION_OP);					\
+  asm volatile (".call\n\t"				\
+		"bl " #FUNC ",%%r2\n\t"			\
+		"copy %%r19,%%r4\n\t"			\
+		"copy %%r4,%%r19\n"			\
+		:					\
+		:					\
+		: "r1", "r2", "r4", "r20", "r21",	\
+		  "r22", "r24", "r24", "r25", "r26",	\
+		  "r27", "r28", "r29", "r31");		\
+  FORCE_CODE_SECTION_ALIGN				\
+  asm (TEXT_SECTION_ASM_OP);				\
+}
+#endif
+
 #define MD_UNWIND_SUPPORT "config/pa/linux-unwind.h"
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> Index: config/pa/pa32-linux.h
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> --- config/pa/pa32-linux.h      (revision 111979)
> +++ config/pa/pa32-linux.h      (working copy)
> @@ -1,5 +1,5 @@
>  /* Definitions for PA_RISC with ELF-32 format
> -   Copyright (C) 2000, 2002, 2004 Free Software Foundation, Inc.
> +   Copyright (C) 2000, 2002, 2004, 2006 Free Software Foundation, Inc.
>
>  This file is part of GCC.
>
> @@ -36,4 +36,29 @@
>                     aligned(sizeof(func_ptr))))                         \
>      =3D { (func_ptr) (-1) }
>
> +/* This is a PIC version of CRT_CALL_STATIC_FUNCTION.  The PIC
> +   register has to be saved before the call and restored after
> +   the call.  We assume that register %r4 is available for this
> +   purpose.  The hack prevents GCC from deleting the restore.  */
> +#ifdef CRTSTUFFS_O
> +#undef CRT_CALL_STATIC_FUNCTION
> +#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC)     \
> +static void __attribute__((__used__))                  \
> +call_ ## FUNC (void)                                   \
> +{                                                      \
> +  asm (SECTION_OP);                                    \
> +  asm volatile (".call\n\t"                            \
> +               "bl " #FUNC ",%%r2\n\t"                 \
> +               "copy %%r19,%%r4\n\t"                   \
> +               "copy %%r4,%%r19\n"                     \
> +               :                                       \
> +               :                                       \
> +               : "r1", "r2", "r4", "r20", "r21",       \
> +                 "r22", "r24", "r24", "r25", "r26",    \
> +                 "r27", "r28", "r29", "r31");          \
> +  FORCE_CODE_SECTION_ALIGN                             \
> +  asm (TEXT_SECTION_ASM_OP);                           \
> +}
> +#endif
> +
>  #define MD_UNWIND_SUPPORT "config/pa/linux-unwind.h"

Awesome, I hope this works. Thanks Randolph and Dave for the
sleuthing!

c.
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On Sun, Mar 12, 2006 at 02:26:16PM +0100, Helge Deller wrote:
> Here is my current analysis.
> Maybe someone with a better understanding might have some idea on what's going on ?

Yes - I'll take another look. You have good data below:

> 1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
...
> hpa start = fffffffffed00000 size=4096    <<<<<< this is the Astro BC
> IOREMAP: phys_addr=fffffffffed00000, offset = 0, size=4096

I think we ahould be doing an ioremap of HPA + ASTRO_IOC_OFFSET.
ie 32*4k (0x20000)

> IOREMAP: addr = 0000000000008000         <<<<< the new vm area ( fffffffffed00000(phys) will be mapped to 0x8000(virt))
> set_pte: virtual:8000 -> phys=fffffffffed00000, pte=fffffffffed00283  << here is the pte entry which ioremap() generates.
...
> Below is the PIM HPMC output.
> Looking at the log, it seems that the pte was (mostly?) right, since
> the System Responder Address below is 0xfffffffffed10200.
> Although I don't understand why it was 0xfffffffffed10200 and not 0xfffffffffed00008 ?

We need to map the BC port to get rev info and we do that
at the top of sba_driver_callback(). So I _think_ the first
accesses are working.

Later, sba_ioc_init() calls
	sba_dev->ioc[0].ioc_hpa = ioc_remap(sba_dev, ASTRO_IOC_OFFSET);

That looks fine too.

I just wonder why we are accessing 0xfffffffffed10200 (ioc? + ROPE0_CTL)
instead of (BC HPA + 32 * SBA_FUNC_SIZE):
	0xfffffffffed00000 + 32 * 4K = 0xfffffffffed20000

Maybe the offset isn't being placed into the page table correctly.
(Unlikely...)


> Any ideas ?

I'll keep looking more later today and/or tomorrow.
I want to review the HPMC data again too.

thanks,
grant



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> Awesome, I hope this works.

Seems to, so I will be installing a simplified version to the GCC tree.

Dave
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National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Mar 12, 2006 at 02:26:16PM +0100, Helge Deller wrote:
> drivers/parisc/sba_iommu.c does the following on my machine:
>         void __iomem *sba_addr;
>         sba_addr = ioremap(0xfffffffffed00000, 4096);  /* 0xfffffffffed00000 is hpa of Astro BC Runway Port at 0xfffffffffed00000 [10] */
>         func_class = * (volatile unsigned long long *) (sba_addr + 8);
> 
> Here is the important part of the bootlog:
....
> hpa start = fffffffffed00000 size=4096    <<<<<< this is the Astro BC
> IOREMAP: phys_addr=fffffffffed00000, offset = 0, size=4096
> IOREMAP: addr = 0000000000008000         <<<<< the new vm area ( fffffffffed00000(phys) will be mapped to 0x8000(virt))
> set_pte: virtual:8000 -> phys=fffffffffed00000, pte=fffffffffed00283  << here is the pte entry which ioremap() generates.
> 
> The pte value seems right, and the __pgprot flags which I used were: _PAGE_PRESENT | _PAGE_RW | _PAGE_NO_CACHE;

Is the U-bit getting set in the CPU pdir?
It doesn't look like it.

In theory this shouldn't matter since the address falls in "F-space".
IIRC all parisc CPUs treat "F-space" as uncached.

> Nevertheless, when reading the quadword from (virt) 0x8000+8 it crashes
> ("A Data Miss Timeout"? - see HPMC log).
...
> Looking at the log, it seems that the pte was (mostly?) right, since
> the System Responder Address below is 0xfffffffffed10200.
> Although I don't understand why it was 0xfffffffffed10200
> and not 0xfffffffffed00008 ?

I don't understand that either. ffed10200 is the "MEM_CONTROL_0"
register and has nothing to do with the IOC or base SBA function.
But google is my friend:
	http://archives.neohapsis.com/archives/hp/2001-q2/0037.html

This suggests whatever address that was accessed was expected to be
handled by the memory controller. So I wonder if the pte is really correct.


Looking at use of _PAGE_NO_CACHE_BIT in arch/parisc/kernel/entry.S,
I'm skeptical we need to set U-bit for any 1.1 TLB handlers:
        .macro          make_insert_tlb_11      spc,pte,prot
        zdep            \spc,30,15,\prot
        dep             \pte,8,7,\prot
        extru,=         \pte,_PAGE_NO_CACHE_BIT,1,%r0
        depi            1,12,1,\prot
...

AFAIK, all the PA 1.1 CPUs hard code F-space to be uncached,
do not support U-bit, and do not support IO outside of F-space.
Am I missing something?

I suggest this in case we can make our TLB handlers another cycle
(or two) faster. This matters on workloads the use > ~200 pages of RAM.


Suprisingly, I didn't see any reference to _PAGE_NO_CACHE_BIT in
make_insert_tlb macro. I have to wonder if the combination of
IOREMAP and setting U-bit would solve the PA8800 cache issues.


	        depd            \pte,8,7,\prot

moves the right-most 7 bits to pos 8 in \prot.
_PAGE_NO_CACHE_BIT is the 8th bit from the right.

Consider adding two lines of code currently in the make_insert_tlb_11
macro to make_insert_tlb:
        extru,=         \pte,_PAGE_NO_CACHE_BIT,1,%r0
        depi            1,12,1,\prot
 
But like I said near the top, U-bit may not matter for Astro machines.
Astro has all IO in F-space.
It will matter for Stretch (N-class), ZX1 (e.g. rp3440), and SX1000
(rp8420) platforms which have IO from 2GB to 4GB in the physical
address space.

And I think "f_extend" macro is wrong for stretch and ZX1 platforms.
Those platforms are 64-bit only. While the comment says f_extend is
for ILP32 PA2.0 only, any objections if I add "ifndef 64BIT/else/endif"
code to not do anything for the 64-bit builds?

thanks,
grant



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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] A sti 2.6.16-rc5-pa2 build failure?
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--_=__=_XaM3_.1142492161.2A.591283.42.8117.52.42.007.1024389334
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Hello pa*,

Just a short report build failure of my custom kernel for my d380 (32bit =
up):
   ld   -o .tmp_vmlinux1 -T arch/parisc/kernel/vmlinux.lds
arch/parisc/kernel/head.o   init/built-in.o --start-group  usr/built-in.o=
 
arch/parisc/mm/built-in.o  arch/parisc/kernel/built-in.o 
arch/parisc/math-emu/built-in.o arch/parisc/kernel/init_task.o 
kernel/built-in.o  mm/built-in.o  fs/built-in.o  ipc/built-in.o 
security/built-in.o  crypto/built-in.o  block/built-in.o  lib/lib.a 
arch/parisc/lib/lib.a `gcc -print-libgcc-file-name`  lib/built-in.o 
arch/parisc/lib/built-in.o `gcc -print-libgcc-file-name`  drivers/built-i=
n.o 
sound/built-in.o  net/built-in.o --end-group 
drivers/built-in.o: In function `sti_rom_copy': undefined reference to `g=
sc_readl'
drivers/built-in.o: In function `sti_rom_copy': undefined reference to `g=
sc_readl'
drivers/built-in.o: In function `sti_rom_copy': undefined reference to `g=
sc_readb'
drivers/built-in.o: In function `sti_bmode_rom_copy': undefined reference=
 to
`gsc_readl'
drivers/built-in.o: In function `sti_get_wmode_rom': undefined reference =
to
`gsc_readl'
drivers/built-in.o: In function `sti_try_rom_generic': undefined referenc=
e to
`gsc_readl'
drivers/built-in.o: In function `sti_try_rom_generic': undefined referenc=
e to
`gsc_readl'
drivers/built-in.o: In function `sti_try_rom_generic': undefined referenc=
e to
`gsc_readl'
drivers/built-in.o: more undefined references to `gsc_readl' follow
drivers/built-in.o: In function `sti_try_rom_generic': undefined referenc=
e to
`ioremap'
drivers/built-in.o: In function `sti_try_rom_generic': undefined referenc=
e to
`ioremap_nocache'
make[1]: *** [.tmp_vmlinux1] Error 1
make: *** [vmlinux] Error 2

Any idea?

TIA,
    Joel

PS: I here attached my cfg file.

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Subject: [parisc-linux] two new mirrors for Parisc-linux.org
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Xref: news.gmane.org gmane.linux.ports.parisc:23459


Hi,


I have setup two mirrors for parisc-linux
     
          
Name........: parisc-linux.oss-mirror.org
Server Alias: www.ie.parisc-linux.org
IP..........: 82.195.155.78
Download....: http://parisc-linux.oss-mirror.org/dist
Location....: Dublin - Ireland      
Connection..: 100mbit
Update......: daily
Maintainer..: admin@realhost.de


Name........: parisc-linux.linux-mirror.org
Server Alias: www.de.parisc-linux.org
IP..........: 80.237.211.23
Download....: http://parisc-linux.linux-mirror.org/dist
Location....: Cologne/Koeln - Germany
Connection..: 100mbit
Update......: daily
Maintainer..: admin@vssgmbh.com

add the sites to your mirror list please or give me some info if you
don't need the mirrors

These servers are also official mirros of:

Apache Projekt (apache.oss-mirror.org, apache.linux-mirror.org)
OpenSSL        (openssl.oss-mirror.org, openssl.linux-mirror.org)
OpenSSH        (openssh.oss-mirror.org, openssh.linux-mirror.org)
GNU            ......................
and so on.

Thx
Ralf




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On Thu, 16 Mar 2006, Grant Grundler wrote:

> On Thu, Mar 16, 2006 at 11:11:14AM +0100, admin@realhost.de wrote:
> > I have setup two mirrors for parisc-linux
> 
> Ralf,
> Is this a mirror of www.parisc-linux.org or also the ftp and cvs repositories?

  Grant,

  actually for www.parisc-linux.org only. Do you have an idea how large 
  the ftp and cvs repositories are ? I think I could arrange the ftp and 
  cvs repositories as well.

  Ralf


> 
> > add the sites to your mirror list please or give me some info if you
> > don't need the mirrors
> 
> I can add those to the website.
> 
> BTW, all of www.parisc-linux.org website is in
> cvs.parisc-linux.org "web" repository.
> 
> thanks,
> grant
> 
> > 
> > These servers are also official mirros of:
> > 
> > Apache Projekt (apache.oss-mirror.org, apache.linux-mirror.org)
> > OpenSSL        (openssl.oss-mirror.org, openssl.linux-mirror.org)
> > OpenSSH        (openssh.oss-mirror.org, openssh.linux-mirror.org)
> > GNU            ......................
> > and so on.
> > 
> > Thx
> > Ralf
> > 
> > 
> > 
> > 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes)
Date: Fri, 17 Mar 2006 10:27:48 -0700
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On Sun, Mar 12, 2006 at 02:26:16PM +0100, Helge Deller wrote:
> Here is the important part of the bootlog:
...
> hpa start = fffffffffed00000 size=4096    <<<<<< this is the Astro BC
> IOREMAP: phys_addr=fffffffffed00000, offset = 0, size=4096
> IOREMAP: addr = 0000000000008000         <<<<< the new vm area ( fffffffffed00000(phys) will be mapped to 0x8000(virt))
> set_pte: virtual:8000 -> phys=fffffffffed00000, pte=fffffffffed00283

I'm wondering if we want all 64 bits set in the pte or if we only want
to set the lower 40 (or 44 for pa8800) bits. The Astro system map
only shows 40-bits.

The "f_extend" might not be needed for Astro chipset if the HW will
automatically alias the 32-bit address range for us. The address
map doesn't indicate 4GB-256MB is aliased. But I wonder how the
32-bit OS could otherwise work - unless PA20 CPU is silently
sign extending everything for us.

Hrm...suggests that maybe we are doing something wrong in the
asm for the 64-bit case.

> Nevertheless, when reading the quadword from (virt) 0x8000+8 it crashes
> ("A Data Miss Timeout"? - see HPMC log).

> Although I don't understand why it was 0xfffffffffed10200 and not 0xfffffffffed00008 ?

As noted before, this is a quirk in the firmware - fed10200 is the memory
controller.

> -----------------  Processor 0 HPMC Information ------------------
...
> MEM_ADDR                     = 0x000001ff3fffffff

~0UL means not valid.

> RUN_ADDR                     = 0xc1bff0fffed08040

This was the last Runway address seen on the bus.
Ditto for RUN_DATA_HIGH/LOW.

Unfortunately, fffed08040 is the address of RUN_ADDR register.
It suggests the memory controller never saw an error
and continued recording until HPMC code reads RUN_ADDR.

hth,
grant



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Subject: Re: [parisc-linux] confirme: bug in arg checking in clone.S
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Xref: news.gmane.org gmane.linux.ports.parisc:23462

> Hello Mike and list,
> 
> Mike Frysinger wrote:
> > for some reason the attached test case (originally from LTP) segfault=
s on 
> > glibc/hppa systems ... every other arch ive tested on works fine ...
> > 
> Ok I find this LTP Stuff.
> # ./clone04
> clone04     1  BROK  :  Unexpected signal 11 received.
> 
> 
> Effectively, as the comment said:
>   * DESCRIPTION
>   *      Verify that,
>   *      clone(2) returns -1 and sets errno to EINVAL if
>   *      child stack is set to a zero value(NULL)
> 
> Also as your subject better explain, the hppa implementation didn't do =
a
"Sanity check arguments" (as other arch does).
> 
> Can somebody could check this patch proposal:
> --- ./sysdeps/unix/sysv/linux/hppa/clone.S.Orig 2006-01-14
17:48:33.000000000 +0000
> +++ ./sysdeps/unix/sysv/linux/hppa/clone.S      2006-03-04
19:46:03.000000000 +0000
> @@ -46,6 +46,11 @@
>           .text
>   ENTRY(__clone)
> 
> +       /* Sanity check arguments.  */
> +       ldi     -EINVAL, %ret0
> +       comib,=3D,n       0,%r26,.Lerror  /* no NULL function pointers =
*/
> +       comib,=3D,n       0,%r25,.Lerror  /* no NULL stack pointers */
> +
>          /* Save the fn ptr and arg on the new stack.  */
>          stwm    %r26,64(%r25)
>          stw     %r23,-60(%r25)
> =3D=3D=3D=3D<>=3D=3D=3D=3D
> 
> (Not sure I didn't miss some nop in delay slot on comib?)
> 
Definitely we had to restore hunk:
RCS file: /var/lib/cvs/glibc/sysdeps/unix/sysv/linux/hppa/clone.S,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- glibc/sysdeps/unix/sysv/linux/hppa/clone.S	2005/06/08 20:32:42	1.2
+++ glibc/sysdeps/unix/sysv/linux/hppa/clone.S	2005/08/02 17:02:02	1.3
[...]
-	/* FIXME: I have no idea how profiling works on hppa. */
-
-	/* Sanity check arguments.  */
-	comib,=3D  0,%arg0,.Lerror        /* no NULL function pointers */
-	ldi     -EINVAL,%ret0
-	comib,=3D  0,%arg1,.Lerror        /* no NULL stack pointers */
-	nop
[...]

but we also have to goto one step after:
'/* Restore the PIC register on error */'

that way I bit progress:
# ./clone04
clone04     1  PASS  :  expected failure; Got EINVAL

Cool isn't it?

Unfortunately, I still have a draw back: the system panics immediately on=

kernel bug:
clone04(1905): unaligned access to 0xfffffffa at ip=3D0x00011027         =
      
                                      
clone04(1905): unaligned access to 0xfffffffa at ip=3D0x0001105f         =
      
                                                      
clone04(1905): unaligned access to 0xfffffffa at ip=3D0x00011177         =
      
                                                      
clone04(1905): unaligned access to 0xfffffffa at ip=3D0x0001117f         =
      
                                                      
Unaligned handler failed, ret =3D -2                                     =
      
                                                      
clone04 (pid 1905): Unaligned data reference (code 28) at 0001119b       =
    
                                                      
kernel BUG at /CAD/linux-2.6.16-rc6-paem2/mm/mmap.c:1957!                =
    
                                                      
Backtrace:                                                               =
    
                                                      
 [<10158944>] exit_mmap+0x178/0x198                                      =
    
                                                      
 [<101235a4>] mmput+0x44/0xb8                                            =
    
                                                      
 [<10128308>] do_exit+0x12c/0x8a0                                        =
    
                                                      
 [<10128ae0>] do_group_exit+0x64/0xc4                                    =
    
                                                      
 [<1010b114>] syscall_exit+0x0/0x14                                      =
    
                                                      
                                                                         =
    
                                                      
Kernel panic - not syncing: BUG!

Hth,
    Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:23463

Hello Helge,

> 
> Just a short report build failure of my custom kernel for my d380 (32bi=
t up):
>    ld   -o .tmp_vmlinux1 -T arch/parisc/kernel/vmlinux.lds
> arch/parisc/kernel/head.o   init/built-in.o --start-group  usr/built-in=
.o 
> arch/parisc/mm/built-in.o  arch/parisc/kernel/built-in.o 
> arch/parisc/math-emu/built-in.o arch/parisc/kernel/init_task.o 
> kernel/built-in.o  mm/built-in.o  fs/built-in.o  ipc/built-in.o 
> security/built-in.o  crypto/built-in.o  block/built-in.o  lib/lib.a 
> arch/parisc/lib/lib.a `gcc -print-libgcc-file-name`  lib/built-in.o 
> arch/parisc/lib/built-in.o `gcc -print-libgcc-file-name`  drivers/built=
-in.o 
> sound/built-in.o  net/built-in.o --end-group 
> drivers/built-in.o: In function `sti_rom_copy': undefined reference to
`gsc_readl'
> drivers/built-in.o: In function `sti_rom_copy': undefined reference to
`gsc_readl'
> drivers/built-in.o: In function `sti_rom_copy': undefined reference to
`gsc_readb'
> drivers/built-in.o: In function `sti_bmode_rom_copy': undefined referen=
ce to
> `gsc_readl'
> drivers/built-in.o: In function `sti_get_wmode_rom': undefined referenc=
e to
> `gsc_readl'
> drivers/built-in.o: In function `sti_try_rom_generic': undefined refere=
nce to
> `gsc_readl'
> drivers/built-in.o: In function `sti_try_rom_generic': undefined refere=
nce to
> `gsc_readl'
> drivers/built-in.o: In function `sti_try_rom_generic': undefined refere=
nce to
> `gsc_readl'
> drivers/built-in.o: more undefined references to `gsc_readl' follow
> drivers/built-in.o: In function `sti_try_rom_generic': undefined refere=
nce to
> `ioremap'
> drivers/built-in.o: In function `sti_try_rom_generic': undefined refere=
nce to
> `ioremap_nocache'
> make[1]: *** [.tmp_vmlinux1] Error 1
> make: *** [vmlinux] Error 2
> 
it seems that this reverting hunk:
--- drivers/video/sticore.h.Orig        2006-03-20 11:50:46.000000000 +01=
00
+++ drivers/video/sticore.h     2006-03-20 11:51:47.000000000 +0100
@@ -36,7 +36,7 @@
  
 #define STI_WAIT 1
 
-#include <linux/config.h> /* for CONFIG_HPPA_IOREMAP */
+#include <asm/io.h> /* for CONFIG_HPPA_IOREMAP */
 
 #ifdef CONFIG_HPPA_IOREMAP
 
=3D=3D=3D=3D<>=3D=3D=3D=3D

help (at least to rebuild this kernel).

If you agre, could you check in (I don't have cvs access)?

TIA,
    Joel=0A=0A-----------------------------------------------------------=
----=0AA free anti-spam and anti-virus filter on all Scarlet mailboxes=0A=
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] A sti 2.6.16-rc5-pa2 build failure?
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To: "Joel Soete" <soete.joel@tiscali.be>
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Xref: news.gmane.org gmane.linux.ports.parisc:23464

Hi Joel,

did you tried a "make distclean", and "make oldconfig" ?
And, are all your files up-to-date (cvs -z3 -q up) ?
I'm wondering, since this header file does not do any IO...

Helge

On Monday 20 March 2006 12:19, Joel Soete wrote:
> Hello Helge,
> 
> > 
> > Just a short report build failure of my custom kernel for my d380 (32bit up):
> >    ld   -o .tmp_vmlinux1 -T arch/parisc/kernel/vmlinux.lds
> > arch/parisc/kernel/head.o   init/built-in.o --start-group  usr/built-in.o 
> > arch/parisc/mm/built-in.o  arch/parisc/kernel/built-in.o 
> > arch/parisc/math-emu/built-in.o arch/parisc/kernel/init_task.o 
> > kernel/built-in.o  mm/built-in.o  fs/built-in.o  ipc/built-in.o 
> > security/built-in.o  crypto/built-in.o  block/built-in.o  lib/lib.a 
> > arch/parisc/lib/lib.a `gcc -print-libgcc-file-name`  lib/built-in.o 
> > arch/parisc/lib/built-in.o `gcc -print-libgcc-file-name`  drivers/built-in.o 
> > sound/built-in.o  net/built-in.o --end-group 
> > drivers/built-in.o: In function `sti_rom_copy': undefined reference to
> `gsc_readl'
> > drivers/built-in.o: In function `sti_rom_copy': undefined reference to
> `gsc_readl'
> > drivers/built-in.o: In function `sti_rom_copy': undefined reference to
> `gsc_readb'
> > drivers/built-in.o: In function `sti_bmode_rom_copy': undefined reference to
> > `gsc_readl'
> > drivers/built-in.o: In function `sti_get_wmode_rom': undefined reference to
> > `gsc_readl'
> > drivers/built-in.o: In function `sti_try_rom_generic': undefined reference to
> > `gsc_readl'
> > drivers/built-in.o: In function `sti_try_rom_generic': undefined reference to
> > `gsc_readl'
> > drivers/built-in.o: In function `sti_try_rom_generic': undefined reference to
> > `gsc_readl'
> > drivers/built-in.o: more undefined references to `gsc_readl' follow
> > drivers/built-in.o: In function `sti_try_rom_generic': undefined reference to
> > `ioremap'
> > drivers/built-in.o: In function `sti_try_rom_generic': undefined reference to
> > `ioremap_nocache'
> > make[1]: *** [.tmp_vmlinux1] Error 1
> > make: *** [vmlinux] Error 2
> > 
> it seems that this reverting hunk:
> --- drivers/video/sticore.h.Orig        2006-03-20 11:50:46.000000000 +0100
> +++ drivers/video/sticore.h     2006-03-20 11:51:47.000000000 +0100
> @@ -36,7 +36,7 @@
>   
>  #define STI_WAIT 1
>  
> -#include <linux/config.h> /* for CONFIG_HPPA_IOREMAP */
> +#include <asm/io.h> /* for CONFIG_HPPA_IOREMAP */
>  
>  #ifdef CONFIG_HPPA_IOREMAP
>  
> ====<>====
> 
> help (at least to rebuild this kernel).
> 
> If you agre, could you check in (I don't have cvs access)?
> 
> TIA,
>     Joel
> 
> ---------------------------------------------------------------
> A free anti-spam and anti-virus filter on all Scarlet mailboxes
> More info on http://www.scarlet.be/
> 
> 
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: Re: [parisc-linux] A sti 2.6.16-rc5-pa2 build failure?
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Xref: news.gmane.org gmane.linux.ports.parisc:23465

Hi Joel,

it builds for me...

Helge

On Monday 20 March 2006 19:47, Helge Deller wrote:
> Hi Joel,
> 
> did you tried a "make distclean", and "make oldconfig" ?
> And, are all your files up-to-date (cvs -z3 -q up) ?
> I'm wondering, since this header file does not do any IO...
> 
> Helge
> 
> On Monday 20 March 2006 12:19, Joel Soete wrote:
> > Hello Helge,
> > 
> > > 
> > > Just a short report build failure of my custom kernel for my d380 (32bit up):
> > >    ld   -o .tmp_vmlinux1 -T arch/parisc/kernel/vmlinux.lds
> > > arch/parisc/kernel/head.o   init/built-in.o --start-group  usr/built-in.o 
> > > arch/parisc/mm/built-in.o  arch/parisc/kernel/built-in.o 
> > > arch/parisc/math-emu/built-in.o arch/parisc/kernel/init_task.o 
> > > kernel/built-in.o  mm/built-in.o  fs/built-in.o  ipc/built-in.o 
> > > security/built-in.o  crypto/built-in.o  block/built-in.o  lib/lib.a 
> > > arch/parisc/lib/lib.a `gcc -print-libgcc-file-name`  lib/built-in.o 
> > > arch/parisc/lib/built-in.o `gcc -print-libgcc-file-name`  drivers/built-in.o 
> > > sound/built-in.o  net/built-in.o --end-group 
> > > drivers/built-in.o: In function `sti_rom_copy': undefined reference to
> > `gsc_readl'
> > > drivers/built-in.o: In function `sti_rom_copy': undefined reference to
> > `gsc_readl'
> > > drivers/built-in.o: In function `sti_rom_copy': undefined reference to
> > `gsc_readb'
> > > drivers/built-in.o: In function `sti_bmode_rom_copy': undefined reference to
> > > `gsc_readl'
> > > drivers/built-in.o: In function `sti_get_wmode_rom': undefined reference to
> > > `gsc_readl'
> > > drivers/built-in.o: In function `sti_try_rom_generic': undefined reference to
> > > `gsc_readl'
> > > drivers/built-in.o: In function `sti_try_rom_generic': undefined reference to
> > > `gsc_readl'
> > > drivers/built-in.o: In function `sti_try_rom_generic': undefined reference to
> > > `gsc_readl'
> > > drivers/built-in.o: more undefined references to `gsc_readl' follow
> > > drivers/built-in.o: In function `sti_try_rom_generic': undefined reference to
> > > `ioremap'
> > > drivers/built-in.o: In function `sti_try_rom_generic': undefined reference to
> > > `ioremap_nocache'
> > > make[1]: *** [.tmp_vmlinux1] Error 1
> > > make: *** [vmlinux] Error 2
> > > 
> > it seems that this reverting hunk:
> > --- drivers/video/sticore.h.Orig        2006-03-20 11:50:46.000000000 +0100
> > +++ drivers/video/sticore.h     2006-03-20 11:51:47.000000000 +0100
> > @@ -36,7 +36,7 @@
> >   
> >  #define STI_WAIT 1
> >  
> > -#include <linux/config.h> /* for CONFIG_HPPA_IOREMAP */
> > +#include <asm/io.h> /* for CONFIG_HPPA_IOREMAP */
> >  
> >  #ifdef CONFIG_HPPA_IOREMAP
> >  
> > ====<>====
> > 
> > help (at least to rebuild this kernel).
> > 
> > If you agre, could you check in (I don't have cvs access)?
> > 
> > TIA,
> >     Joel
> > 
> > ---------------------------------------------------------------
> > A free anti-spam and anti-virus filter on all Scarlet mailboxes
> > More info on http://www.scarlet.be/
> > 
> > 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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> Hi Joel,
> 
> it builds for me...
> 
Strange but ...
> Helge
> 
> On Monday 20 March 2006 19:47, Helge Deller wrote:
> > Hi Joel,
> > 
> > did you tried a "make distclean", and "make oldconfig" ?
I just did a make clean (to save my .config) then the make oldconfig.
I just need to test again with distclean or from a clean dir (will advise=
).

> > And, are all your files up-to-date (cvs -z3 -q up) ?
No more cvs access but I grab the latest tarball 
(mmm but have the same pb at home with cvs src tree)

> > I'm wondering, since this header file does not do any IO...
> > 
though, I use to build my kernels into a output dir with KBUILD_OUPUT opt=
ion,
could it make the difference?

Thanks (I will come back asap),
    Joel
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] A sti 2.6.16-rc5-pa2 build failure?
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Hello Helge,

Sorry in advance for anoying you but it still failed, here what I did (as=

usual, usual is not always a good ref but):
  1/ grab http://cvs.parisc-linux.org/download/linux-2.6/linux-2.6.16-pa0=
.tar.bz2

  2/ untar it into /usr/src,
  3/ create also a new dir /usr/src/linux-2.6-pa-d32up-n
  4/ cp the CustomConfigD380 /usr/src/linux-2.6-pa-d32up-n/.config
  5/ cd /usr/src/linux-2.6.16-pa0
  6/ export KBUILD_OUTPUT=3D"../linux-2.6-pa-d32up-n"
  7/ make oldconfig (eventualy keep a trace)
  8/ make V=3D1 vmlinux 
  9/ always failed on the same pb:
  ld   -o .tmp_vmlinux1 -T arch/parisc/kernel/vmlinux.lds
arch/parisc/kernel/head.o   init/built-in.o --start-group  usr/built-in.o=
 
arch/parisc/mm/built-in.o  arch/parisc/kernel/built-in.o 
arch/parisc/math-emu/built-in.o arch/parisc/kernel/init_task.o 
kernel/built-in.o  mm/built-in.o  fs/built-in.o  ipc/built-in.o 
security/built-in.o  crypto/built-in.o  block/built-in.o  lib/lib.a 
arch/parisc/lib/lib.a `gcc -print-libgcc-file-name`  lib/built-in.o 
arch/parisc/lib/built-in.o `gcc -print-libgcc-file-name`  drivers/built-i=
n.o 
sound/built-in.o  net/built-in.o --end-group 
drivers/built-in.o: In function `sti_rom_copy': undefined reference to `g=
sc_readl'
drivers/built-in.o: In function `sti_rom_copy': undefined reference to `g=
sc_readl'
drivers/built-in.o: In function `sti_rom_copy': undefined reference to `g=
sc_readb'
drivers/built-in.o: In function `sti_bmode_rom_copy': undefined reference=
 to
`gsc_readl'
drivers/built-in.o: In function `sti_get_wmode_rom': undefined reference =
to
`gsc_readl'
drivers/built-in.o: In function `sti_try_rom_generic': undefined referenc=
e to
`gsc_readl'
drivers/built-in.o: In function `sti_try_rom_generic': undefined referenc=
e to
`gsc_readl'
drivers/built-in.o: In function `sti_try_rom_generic': undefined referenc=
e to
`gsc_readl'
drivers/built-in.o: more undefined references to `gsc_readl' follow
drivers/built-in.o: In function `sti_try_rom_generic': undefined referenc=
e to
`ioremap'
drivers/built-in.o: In function `sti_try_rom_generic': undefined referenc=
e to
`ioremap_nocache'
make[1]: *** [.tmp_vmlinux1] Error 1
make: *** [vmlinux] Error 2

btw I was convience that restauring asm/io.h (i.e. asm-parisc/io.h) 
because it's where gsc_ are defined (but I not a guru and missed somethin=
g else).

Thanks again,
    Joel

PS: for this d380 I can remove this option because it never had any grafi=
c
cards but my c110 has one and use nearly the same config file.=0A=0A-----=
----------------------------------------------------------=0AA free anti-=
spam and anti-virus filter on all Scarlet mailboxes=0AMore info on http:/=
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] A sti 2.6.16-rc5-pa2 build failure?
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On Mon, Mar 20, 2006 at 08:42:40PM +0100, Helge Deller wrote:
> Hi Joel,
> 
> it builds for me...

It depends on your .config.  If you look at
http://cvs.parisc-linux.org/download/linux-2.6/ you'll see 712_defconfig
fail to build for the last two releases.  I'm testing Joel's fix now.
~                                                                               
~                                                                               
~                                                                               
~                                                                               
~                                                                               
~                                                                               
~                                                                               
~                                                                               
~                                                                               
~                                                                               
~                                                                               
~                                                                               
~                                  



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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes)
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Xref: news.gmane.org gmane.linux.ports.parisc:23469

Hi all,

it turned out, that it was a stupid bug in the PFN calculation of the DTLB handler routine.
It's fixed now in CVS.
The 64bit Kernel boots now, but I still have to clean up STIfb driver to do the right thing.

Anyway, nice to have this fixed.
If STIfb is done, it's time to remove the CONFIG_HPPA_IOREMAP option.

Helge

On Friday 17 March 2006 18:27, Grant Grundler wrote:
> On Sun, Mar 12, 2006 at 02:26:16PM +0100, Helge Deller wrote:
> > Here is the important part of the bootlog:
> ...
> > hpa start = fffffffffed00000 size=4096    <<<<<< this is the Astro BC
> > IOREMAP: phys_addr=fffffffffed00000, offset = 0, size=4096
> > IOREMAP: addr = 0000000000008000         <<<<< the new vm area ( fffffffffed00000(phys) will be mapped to 0x8000(virt))
> > set_pte: virtual:8000 -> phys=fffffffffed00000, pte=fffffffffed00283
> 
> I'm wondering if we want all 64 bits set in the pte or if we only want
> to set the lower 40 (or 44 for pa8800) bits. The Astro system map
> only shows 40-bits.
> 
> The "f_extend" might not be needed for Astro chipset if the HW will
> automatically alias the 32-bit address range for us. The address
> map doesn't indicate 4GB-256MB is aliased. But I wonder how the
> 32-bit OS could otherwise work - unless PA20 CPU is silently
> sign extending everything for us.
> 
> Hrm...suggests that maybe we are doing something wrong in the
> asm for the 64-bit case.
> 
> > Nevertheless, when reading the quadword from (virt) 0x8000+8 it crashes
> > ("A Data Miss Timeout"? - see HPMC log).
> 
> > Although I don't understand why it was 0xfffffffffed10200 and not 0xfffffffffed00008 ?
> 
> As noted before, this is a quirk in the firmware - fed10200 is the memory
> controller.
> 
> > -----------------  Processor 0 HPMC Information ------------------
> ...
> > MEM_ADDR                     = 0x000001ff3fffffff
> 
> ~0UL means not valid.
> 
> > RUN_ADDR                     = 0xc1bff0fffed08040
> 
> This was the last Runway address seen on the bus.
> Ditto for RUN_DATA_HIGH/LOW.
> 
> Unfortunately, fffed08040 is the address of RUN_ADDR register.
> It suggests the memory controller never saw an error
> and continued recording until HPMC code reads RUN_ADDR.
> 
> hth,
> grant
> 
> 
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes)
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On Wed, Mar 22, 2006 at 12:09:43AM +0100, Helge Deller wrote:
> it turned out, that it was a stupid bug in the PFN calculation of the DTLB handler routine.
> It's fixed now in CVS.
> The 64bit Kernel boots now, but I still have to clean up STIfb driver to do the right thing.
>

Wow, way to go! 



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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes)
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Xref: news.gmane.org gmane.linux.ports.parisc:23471

> Hi all,
> 
> it turned out, that it was a stupid bug in the PFN calculation of the D=
TLB
handler routine.
> It's fixed now in CVS.
> The 64bit Kernel boots now, but I still have to clean up STIfb driver t=
o do
the right thing.
> 
> Anyway, nice to have this fixed.
> If STIfb is done, it's time to remove the CONFIG_HPPA_IOREMAP option.
> 
Great job ;-)

Tested on n4k (2 way 64bit kernel) and all seems to works fine.

But unfortuantely failed to boot on b2k (64bit up kernel):
Soft power switch enabled, polling @ 0xfffffff0f0400804.                 =
    
                                                      
STI GSC/PCI core graphics driver Version 0.9a                            =
    
                                                      
STI PCI graphic ROM found at fffffffff4940000 (128 kB), fb at fffffffffb0=
00000
(16 MB)                                              
    id 35acda16-9a02587, conforms to spec rev. 8.0c                      =
    
                                                      
BUG: soft lockup detected on CPU#0!                                      =
    
                                                      
                                                                         =
    
                                                      
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                    =
    
                                                      
PSW: 00001000000001000000000000001111 Not tainted                        =
    
                                                      
r00-03  0000000000000000 0000000000000080 000000001010a908 00000000800000=
00  
                                                      
r04-07  000000000000002a 00000000a8000000 0000000000000555 00000000000000=
0d  
                                                      
r08-11  0000000000000000 0000000090dc4f6c 0000000000000001 0000000010dc51=
c8  
                                                      
r12-15  0000000000000010 0000000000000010 0000000000000001 ffffffffffffff=
ff  
                                                      
r16-19  000000001043b328 0000000000000000 0000000000000000 00000000000000=
00  
                                                      
r20-23  0000000000000000 0000000000000000 0000000000000005 00000000000080=
00  
                                                      
r24-27  0000000000000000 0000000000008000 00000000000000cc 00000000105cbc=
40  
                                                      
r28-31  0000000000000000 00000000002aa800 0000000010dc5390 00000000002aa8=
00  
                                                      
sr0-3   0000000000000000 0000000000000000 0000000000000000 00000000000000=
00  
                                                      
sr4-7   0000000000000000 0000000000000000 0000000000000000 00000000000000=
00  
                                                      
                                                                         =
    
                                                      
      VZOUICununcqcqcqcqcqcrmunTDVZOUI                                   =
    
                                                      
FPSR: 00000100000100000000100000000000                                   =
    
                                                      
FPER1: 24850e06                                                          =
    
                                                      
fr00-03  0000000000000000 0000001f00000000 0000001f00000000 0000001f00000=
000 
                                                      
fr04-07  0000000000000000 5555555555555555 5555555555555555 5555555555555=
555 
                                                      
fr08-11  5555555555555555 5555555555555555 5555555555555555 5555555555555=
555 
                                                      
fr12-15  5555555555555555 5555555555555555 5555555555555555 5555555555555=
555 
                                                      
fr16-19  5555555555555555 5555555555555555 5555555555555555 5555555555555=
555 
                                                      
fr20-23  5555555555555555 5555555555555555 0000000000000000 0000000000000=
000 
                                                      
fr24-27  0000000000000000 5555555555555555 5555555555555555 5555555555555=
555 
                                                      
fr28-31  5555555555555555 5555555555555555 5555555555555555 5555555555555=
555 
                                                      
                                                                         =
    
                                                      
IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000102a3cd8
00000000102a3cdc                                                     
 IIR: d3bd1ae8    ISR: 0000000000000000  IOR: 00000000105cbc40           =
    
                                                      
 CPU:        0   CR30: 0000000010dc4000 CR31: 0000000010584000           =
    
                                                      
 ORIG_R28: 00000000104bd008                                              =
    
                                                      
 IAOQ[0]: memset+0x378/0x8e0                                             =
    
                                                      
 IAOQ[1]: memset+0x37c/0x8e0                                             =
    
                                                      
 RP(r2): __udivdi3+0x518/0x940

(which same 32bit kernel seems to works fine?)

Thanks,
    Joel

PS: on going to test on d380 (will advise later)
=0A=0A-------------------------------------------------------=0ANOTE! My =
email address is changing to ... @scarlet.be=0APlease make the necessary =
changes in your address book. =0A=0A



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On Wednesday 22 March 2006 18:18, Joel Soete wrote:
> > The 64bit Kernel boots now, but I still have to clean up STIfb driver to 
> > do the right thing.
> > Anyway, nice to have this fixed.
> > If STIfb is done, it's time to remove the CONFIG_HPPA_IOREMAP option.
> 
> But unfortuantely failed to boot on b2k (64bit up kernel):
> STI GSC/PCI core graphics driver Version 0.9a                                
> STI PCI graphic ROM found at fffffffff4940000 (128 kB), fb at fffffffffb000000
> (16 MB)                                              
>     id 35acda16-9a02587, conforms to spec rev. 8.0c                          
> BUG: soft lockup detected on CPU#0!                                          
> <crash>

That's why I said I need to fix STIfb.... :-)

Helge
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On Wednesday 22 March 2006 19:16, Helge Deller wrote:
> On Wednesday 22 March 2006 18:18, Joel Soete wrote:
> > > The 64bit Kernel boots now, but I still have to clean up STIfb driver to 
> > > do the right thing.
> > > Anyway, nice to have this fixed.
> > > If STIfb is done, it's time to remove the CONFIG_HPPA_IOREMAP option.
> > 
> > But unfortuantely failed to boot on b2k (64bit up kernel):
> > STI GSC/PCI core graphics driver Version 0.9a                                
> > STI PCI graphic ROM found at fffffffff4940000 (128 kB), fb at fffffffffb000000
> > (16 MB)                                              
> >     id 35acda16-9a02587, conforms to spec rev. 8.0c                          
> > BUG: soft lockup detected on CPU#0!                                          
> > <crash>
> 
> That's why I said I need to fix STIfb.... :-)

It's fixed now in CVS (2.6.16-pa2).
Even X11 on stifb with 64bit kernel works...

Helge
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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes)
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> > That's why I said I need to fix STIfb.... :-)
> 
> It's fixed now in CVS (2.6.16-pa2).
> Even X11 on stifb with 64bit kernel works...

Did this bug also affect 32bit kernels?  The reason I ask is I
had to back out using 2.6.16-pa0 on my c3k.  The most obvious
symptoms were fsck failures on reboot, iptables error messages
and unreliable behavior of gnome teminal.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes)
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To: "deller" <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:23475

> On Wednesday 22 March 2006 19:16, Helge Deller wrote:
> > On Wednesday 22 March 2006 18:18, Joel Soete wrote:
> > > > The 64bit Kernel boots now, but I still have to clean up STIfb dr=
iver to 
> > > > do the right thing.
> > > > Anyway, nice to have this fixed.
> > > > If STIfb is done, it's time to remove the CONFIG_HPPA_IOREMAP opt=
ion.
> > > 
> > > But unfortuantely failed to boot on b2k (64bit up kernel):
> > > STI GSC/PCI core graphics driver Version 0.9a                      =
    
     
> > > STI PCI graphic ROM found at fffffffff4940000 (128 kB), fb at
fffffffffb000000
> > > (16 MB)                                              
> > >     id 35acda16-9a02587, conforms to spec rev. 8.0c                =
    
     
> > > BUG: soft lockup detected on CPU#0!                                =
    
     
> > > <crash>
> > 
> > That's why I said I need to fix STIfb.... :-)
> 
Appologies for my bad understanding of your previous advise ;-)

> It's fixed now in CVS (2.6.16-pa2).
> Even X11 on stifb with 64bit kernel works...
> 
Great I will test asap.

Thanks a lot,
    Joel=0A=0A-------------------------------------------------------=0AN=
OTE! My email address is changing to ... @scarlet.be=0APlease make the ne=
cessary changes in your address book. =0A=0A



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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes)
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Xref: news.gmane.org gmane.linux.ports.parisc:23476

On Thursday 23 March 2006 00:49, John David Anglin wrote:
> > > That's why I said I need to fix STIfb.... :-)
> > 
> > It's fixed now in CVS (2.6.16-pa2).
> > Even X11 on stifb with 64bit kernel works...
> 
> Did this bug also affect 32bit kernels?  The reason I ask is I
> had to back out using 2.6.16-pa0 on my c3k.  The most obvious
> symptoms were fsck failures on reboot, iptables error messages
> and unreliable behavior of gnome teminal.

The fixes I did was only related to virtually-mapped vs. physically-addressed memory regions.
So I don't think I changed anything special for a 32bit kernel if you didn't set CONFIG_HPPA_IOREMAP.

But I did booted yesterday the latest CVS 32bit Kernel on my c3k and it worked fine, so I assume you shouldn't see any problems either...

Helge
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes)
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> > But I did booted yesterday the latest CVS 32bit Kernel on my c3k and it
> worked fine, so I assume you shouldn't see any problems either...
> > 
> mmm, just about gnome (i don't yet tested iptables) since midle of last dec,
> after an apt-get dist-upgrade, sudenly many gnome based app (firefox,
> gftp-gtk, d4x, gnome-terminal, ...) running on a debian unstable _i386_ did
> segv (not yet fixed ;-( ). Fwiw, this seems to be an 'orphan' pb (i.e. rare):
> for me it only occures when the X server is the one of hpux-1100 and not with
> another linux one (iirc X.org) (or even the solaris one :/).
> Otoh, that give me the opportunity to test kde brotherhood tools (even
> konqueror ;-) runing fine with a Ubuntu (drapper) installed actualy as a
> vserver on my d380.

Generally, I prefer kde but it hasn't been installable on unstable for
several months:

The following packages have unmet dependencies:
  kde: Depends: kdeaddons but it is not going to be installed
       Depends: kdewebdev but it is not going to be installed

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes)
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Xref: news.gmane.org gmane.linux.ports.parisc:23478

> On Thursday 23 March 2006 00:49, John David Anglin wrote:
> > > > That's why I said I need to fix STIfb.... :-)
> > > 
> > > It's fixed now in CVS (2.6.16-pa2).
> > > Even X11 on stifb with 64bit kernel works...
> > 
> > Did this bug also affect 32bit kernels?  The reason I ask is I
> > had to back out using 2.6.16-pa0 on my c3k.  The most obvious
> > symptoms were fsck failures on reboot, iptables error messages
> > and unreliable behavior of gnome teminal.
> 
> The fixes I did was only related to virtually-mapped vs.
physically-addressed memory regions.
> So I don't think I changed anything special for a 32bit kernel if you d=
idn't
set CONFIG_HPPA_IOREMAP.
> 
> But I did booted yesterday the latest CVS 32bit Kernel on my c3k and it=

worked fine, so I assume you shouldn't see any problems either...
> 
mmm, just about gnome (i don't yet tested iptables) since midle of last d=
ec,
after an apt-get dist-upgrade, sudenly many gnome based app (firefox,
gftp-gtk, d4x, gnome-terminal, ...) running on a debian unstable _i386_ d=
id
segv (not yet fixed ;-( ). Fwiw, this seems to be an 'orphan' pb (i.e. ra=
re):
for me it only occures when the X server is the one of hpux-1100 and not =
with
another linux one (iirc X.org) (or even the solaris one :/).
Otoh, that give me the opportunity to test kde brotherhood tools (even
konqueror ;-) runing fine with a Ubuntu (drapper) installed actualy as a
vserver on my d380.

Hth,
    Joel
  =0A=0A---------------------------------------------------------------=0A=
A free anti-spam and anti-virus filter on all Scarlet mailboxes=0AMore in=
fo on http://www.scarlet.be/



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From: Helge Deller <deller@gmx.de>
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On Thursday 23 March 2006 14:54, John David Anglin wrote:
> Generally, I prefer kde but it hasn't been installable on unstable for
> several months:
> 
> The following packages have unmet dependencies:
>   kde: Depends: kdeaddons but it is not going to be installed
>        Depends: kdewebdev but it is not going to be installed

Hi Dave,

both packages (kdeaddons and kdewebdev) are not required packages....
If the others work it should be equally fine (specially kdelibs, kdebase, kdepim).

Helge
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] "BUG: soft lockup detected on CPU#0" on recent 64bit
	k-2.6.16 (up or smp)
Date: Fri, 24 Mar 2006 12:30:12 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:23480

Hello pa*,

Just to report some "BUG: soft lockup detected on CPU#0":
on b2k testing k-2.6.16-pa4 64bit up:
BUG: soft lockup detected on CPU#0!

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Not tainted
r00-03  0000000000000000 0079dd400000003e 0000000010111bdc 0000000010648c=
e0
r04-07  00000000105cbc20 fffc1302123ce2c3 0000000009a447a4 000000008600c0=
62
r08-11  000000000800000f 0000000010648c70 0000000010574bd0 00000000104cb7=
d8
r12-15  0000000010574d28 00000000104cb820 0000000016568ca8 00000000000000=
00
r16-19  00000000165684f0 00000000144006c8 00000000000477a8 00000000c54000=
00
r20-23  0000000000000000 0000000000000000 000000000000007c 00000000000000=
00
r24-27  0000000000000000 000000000000fa00 000000000079dd40 00000000105cbc=
20
r28-31  fffffffffff0bdc0 0000000000000000 0000000016568e10 00000000000f40=
00
sr0-3   0000000000ab3000 0000000000000000 0000000000000000 0000000000ab30=
00
sr4-7   0000000000000000 0000000000000000 0000000000000000 00000000000000=
00

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000=
000
fr04-07  0000000010defb80 00000000105cbc20 ffffffffffffff9c 0000000000000=
000
fr08-11  fffffffffffffc18 0000000000000000 0000000000000802 0000000010da2=
ac0
fr12-15  0000000410da2ad0 0004739e105cbc20 0000000000000000 5555555555555=
555
fr16-19  5555555555555555 5555555555555555 5555555555555555 5555555555555=
555
fr20-23  000000001018a420 5555555555555555 000000000000007c 0000000000000=
000
fr24-27  0000000000000000 3fe0000000000000 412e848000000000 bec7de009e9e8=
cec
fr28-31  036583df286abc0a 2fe9bb4be37ae44c 036583df00000000 cb458fb500000=
802

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010111c18 0000000010=
111c1c
 IIR: 0b850a25    ISR: 0000000000000000  IOR: 0000000010648868
 CPU:        0   CR30: 0000000016568000 CR31: 0000000010584000
 ORIG_R28: 00000000104cb7d8
 IAOQ[0]: do_gettimeofday+0x150/0x1a0
 IAOQ[1]: do_gettimeofday+0x154/0x1a0
 RP(r2): do_gettimeofday+0x114/0x1a0

also noticed on n4k runing k-2.6.16-pa0 64bit smp kernel:
BUG: soft lockup detected on CPU#0!

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000001011101111110000001111 Not tainted
r00-03  0000000000000000 0000000010584f20 000000001015aebc 000000008db449=
f0
r04-07  000000001057af20 000000001051d040 000000000000000e 00000000000000=
01
r08-11  000000008f2cb738 00002d1426893f20 0000000000000001 00000000000000=
01
r12-15  000000001052b5d8 000000001048d728 000000008b1bc3b0 000000008b1bc6=
f8
r16-19  000000008b1bc3b0 000000001051d040 0000000000000000 00000000000000=
00
r20-23  0000000000372b98 0000000000000000 0000000000000001 00000000000000=
00
r24-27  000000008f2cb738 0000000000000001 000000001051d040 000000001057af=
20
r28-31  0000000000000000 000000008b1bcc20 000000008b1bcc50 00000000000000=
00
sr0-3   00000000006e4800 00000000006e4800 0000000000000000 00000000006e48=
00
sr4-7   0000000000000000 0000000000000000 0000000000000000 00000000000000=
00

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000=
000
fr04-07  000000008f0276c0 000000001057af20 ffffffffffffff9c 00000000105db=
000
fr08-11  00000000101ac718 00000000105db000 fffffffffffffc18 0000000000000=
000
fr12-15  c002c4c800000802 ffffffff1299aac0 000000001299aad0 000000001057a=
f20
fr16-19  0000000000000000 00000000105d62a8 00000000105d62a8 00000000ff800=
730
fr20-23  00000000101ad170 0000000000000000 000000000000a105 0000000000000=
008
fr24-27  0000000000000000 000000001be51d00 00000000105d62a8 00000000104f1=
3e8
fr28-31  000f41fa42806500 fffffffffffffc18 0000000000000000 0000000000000=
802

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001010e728 0000000010=
10e718
 IIR: 0f48109c    ISR: 0000000000000080  IOR: 0000000000000002
 CPU:        0   CR30: 000000008b1bc000 CR31: 000000001053c000
 ORIG_R28: 000000001013f77c
 IAOQ[0]: _read_lock+0x18/0x30
 IAOQ[1]: _read_lock+0x8/0x30
 RP(r2): send_group_sig_info+0x3c/0xb0

(on this system also with a previous k-2.6.16-rc4-pa1-n4kmp without activ=
ity
then waiting my request ;-) )

Hth,
    Joel
=0A=0A---------------------------------------------------------------=0AA=
 free anti-spam and anti-virus filter on all Scarlet mailboxes=0AMore inf=
o on http://www.scarlet.be/

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Subject: [parisc-linux] a small hunk to cleanup 2 build warning?
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Xref: news.gmane.org gmane.linux.ports.parisc:23481

Hi pa*,

those 2 warning crossed my look during the build of n4k (64bit) smp kerne=
l (in
a loop to stress it a bit):
  CC      kernel/compat.o
/usr/src/linux-2.6.16-pa4/kernel/compat.c: In function 'compat_sys_timer_=
create':
/usr/src/linux-2.6.16-pa4/kernel/compat.c:531: warning: implicit declarat=
ion
of function 'get_compat_sigevent'
[...]
  CC      ipc/compat_mq.o
/usr/src/linux-2.6.16-pa4/ipc/compat_mq.c: In function 'compat_sys_mq_not=
ify':
/usr/src/linux-2.6.16-pa4/ipc/compat_mq.c:113: warning: implicit declarat=
ion
of function 'get_compat_sigevent'
[...]

imho this simple hunk could be helpfull:
--- ./include/linux/compat_siginfo.h.Orig       2006-03-24 14:04:10.00000=
0000
+0100
+++ ./include/linux/compat_siginfo.h    2006-03-24 14:24:49.000000000 +01=
00
@@ -171,6 +171,9 @@
 
 #endif /* !HAVE_ARCH_COMPAT_COPY_SIGINFO */
 
+extern int get_compat_sigevent(struct sigevent *event,
+                       const struct compat_sigevent __user *u_event);
+
 extern int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, stru=
ct
siginfo *from);
 extern int compat_copy_siginfo_from_user(struct siginfo *to, compat_sigi=
nfo_t
__user *from);
 
=3D=3D=3D=3D<>=3D=3D=3D=3D

If Ok can you ci?

TIA,
    Joel=0A=0A-------------------------------------------------------=0AN=
OTE! My email address is changing to ... @scarlet.be=0APlease make the ne=
cessary changes in your address book. =0A=0A

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Xref: news.gmane.org gmane.linux.ports.parisc:23482

--_=__=_XaM3_.1143193977.2A.502342.42.20515.52.42.007.1138687764
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Hi Mike and pa*,

Attempting to fix the clone() bug mentioned by Mike, I reach to find a fi=
x
which I submit you for adivse.

This first step just import latest cvs.p-l.org ci by Carlos:
"
Final checkin to implement NPTL.

2005-08-02  Carlos O'Donell <carlos@systemhalted.org>

	* sysdeps/unix/sysv/linux/hppa/clone.S (__clone): Use 5 arguments.
	* sysdeps/unix/sysv/linux/hppa/sysdep.h: Don't include tls.h.
	(INTERNAL_SYSCALL_NCS): New.
	(INTERNAL_SYSCALL_DECL): Don't provide anything.
"

  1/ glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S (see below diff)

  2/ associated sysdeps/unix/sysv/linux/hppa/sysdep.[ch]. I did't touch t=
hose 
     and as it modifie files present in debian glibc235-hppa-sysdeps.diff=
,
     I just propose a refresh.

--- glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S.orig       2006-03-2=
4
09:57:47.000000000 +0100
+++ glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S    2006-03-24
09:58:17.000000000 +0100
@@ -26,29 +26,49 @@
 #define _ERRNO_H       1
 #include <bits/errno.h>
 
-/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *a=
rg) */
+/* Non-thread code calls __clone with the following parameters:
+   int clone(int (*fn)(void *arg), void *child_stack, int flags, void *a=
rg)
+   
+   NPTL Code will call __clone with the following parameters:
+   int clone(int (*fn)(void *arg), void *child_stack, int flags, void *a=
rg,
+            int *parent_tidptr, struct user_desc *newtls, int *child_pid=
ptr)
+
+   The code should not mangle the extra input registers.
+   Syscall expects:                            Input to __clone:
+       r26 - clone flags.                      (arg2)
+       r25 - user stack pointer.               (arg1)
+       r24 - parent tid pointer.               (stack - 52)
+       r23 - struct user_desc newtls pointer.  (stack - 56)
+       r22 - child tid pointer.                (stack - 60)
+       r20 - clone syscall number              (constant)
+ */
 
         .text
 ENTRY(__clone)
-       /* FIXME: I have no idea how profiling works on hppa. */
-
-       /* Sanity check arguments.  */
-       comib,=3D  0,%arg0,.Lerror        /* no NULL function pointers */=

-       ldi     -EINVAL,%ret0
-       comib,=3D  0,%arg1,.Lerror        /* no NULL stack pointers */
-       nop
 
        /* Save the fn ptr and arg on the new stack.  */
-       stwm    %arg0,64(%arg1)
-       stw     %arg3,-60(%arg1)
+       stwm    %r26,64(%r25)
+       stw     %r23,-60(%r25)
+       /* Clone arguments are (int flags, void * child_stack) */
+       copy    %r24,%r26       /* flags are first */
+       /* User stack pointer is in the correct register already */
+
+       /* Load args from stack... */
+       ldw     -52(%sp), %r24  /* Load parent_tidptr */
+       ldw     -56(%sp), %r23  /* Load newtls */
+       ldw     -60(%sp), %r22  /* Load child_tidptr */
+
+       /* Create frame for function */
+       copy    %sp, %r21
+       stwm    %r3, 64(%sp)
+       stw     %r21, -4(%sp)
 
        /* Save the PIC register. */
 #ifdef PIC
-       stw     %r19,-32(%sr0, %sp)     /* parent */
+       copy    %r19, %r3               /* parent */
 #endif
 
        /* Do the system call */
-       copy    %arg2,%arg0
        ble     0x100(%sr2,%r0)
        ldi     __NR_clone,%r20
 
@@ -63,18 +83,23 @@
           since we return immediately. */
 
        bv      %r0(%rp)
-       nop
+       ldwm    -64(%sp), %r3
 
        /* Something bad happened -- no child created */
 .Lerror:
 
        /* Restore the PIC register on error */
 #ifdef PIC
-       ldw     -32(%sr0, %sp), %r19    /* parent */
+       copy    %r3, %r19               /* parent */ 
 #endif
-
+       /* Set errno */
+       copy    %ret0, %r3
        b       __syscall_error
        sub     %r0,%ret0,%arg0
+       copy    %r3, %ret0
+       /* Return after setting errno */
+       bv      %r0(%rp)
+       ldwm    -64(%sp), %r3
 
 thread_start:
 
@@ -92,7 +117,7 @@
        copy    %ret0,%arg0
 
        /* Die horribly.  */
-       iitlbp  %r0,(%r0)
+       iitlbp  %r0,(%sr0,%r0)
=3D=3D=3D=3D<>=3D=3D=3D=3D

(the last hunk was already ci by Kyle)

Joel

PS: here attached files: clone.S.diff-1_3, a new glibc235-hppa-sysdeps.di=
ff 
=0A=0A-------------------------------------------------------=0ANOTE! My =
email address is changing to ... @scarlet.be=0APlease make the necessary =
changes in your address book. =0A=0A
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#! /bin/sh -e=0A=0A# All lines beginning with `# DP:' are a description o=
f the patch.=0A# DP: Description: Make glibc-2.3.5 compile to enable hppa=
 sysdeps=0A#		   and linuxthreads correctly again.=0A# DP: Related bugs: =
=0A# DP: Dpatch author: Jeff Bailey <jbailey@ubuntu.com>=0A# DP: Patch au=
thor: Carlos O'Donell=0A# DP: Upstream status: Pending=0A# DP: Status Det=
ails: =0A# DP: Date: 2005-07-17=0A=0APATCHLEVEL=3D1=0A=0Aif [ $# -ne 2 ];=
 then=0A    echo >&2 "`basename $0`: script expects -patch|-unpatch as ar=
gument"=0A    exit 1=0Afi=0Acase "$1" in=0A    -patch) patch -d "$2" -f -=
-no-backup-if-mismatch -p$PATCHLEVEL < $0;;=0A    -unpatch) patch -d "$2"=
 -f --no-backup-if-mismatch -R -p$PATCHLEVEL < $0;;=0A    *)=0A	echo >&2 =
"`basename $0`: script expects -patch|-unpatch as argument"=0A	exit 1=0Ae=
sac=0Aexit 0=0A=0A# append the patch here and adjust the -p? flag in the =
patch calls.=0A--- libc-orig/sysdeps/generic/dl-sysdep.c	2004-12-14 15:30=
:41.000000000 -0500=0A+++ libc/sysdeps/generic/dl-sysdep.c	2004-12-14 15:=
30:29.000000000 -0500=0A@@ -89,7 +89,7 @@=0A #else=0A   uid_t uid =3D 0;=0A=
   gid_t gid =3D 0;=0A-  unsigned int seen =3D 0;=0A+  int seen =3D 0;=0A=
 # define set_seen_secure() (seen =3D -1)=0A # ifdef HAVE_AUX_XID=0A #  d=
efine set_seen(tag) (tag)	/* Evaluate for the side effects.  */=0A--- lib=
c-orig/sysdeps/hppa/atomicity.h	1969-12-31 19:00:00.000000000 -0500=0A+++=
 libc/sysdeps/hppa/atomicity.h	2003-12-08 21:25:00.000000000 -0500=0A@@ -=
0,0 +1,55 @@=0A+/* Low-level functions for atomic operations.  HP-PARISC =
version.=0A+   Copyright (C) 1997,2001 Free Software Foundation, Inc.=0A+=
   This file is part of the GNU C Library.=0A+=0A+   The GNU C Library is=
 free software; you can redistribute it and/or=0A+   modify it under the =
terms of the GNU Lesser General Public=0A+   License as published by the =
Free Software Foundation; either=0A+   version 2.1 of the License, or (at=
 your option) any later version.=0A+=0A+   The GNU C Library is distribut=
ed in the hope that it will be useful,=0A+   but WITHOUT ANY WARRANTY; wi=
thout even the implied warranty of=0A+   MERCHANTABILITY or FITNESS FOR A=
 PARTICULAR PURPOSE.  See the GNU=0A+   Lesser General Public License for=
 more details.=0A+=0A+   You should have received a copy of the GNU Lesse=
r General Public=0A+   License along with the GNU C Library; if not, writ=
e to the Free=0A+   Software Foundation, Inc., 59 Temple Place, Suite 330=
, Boston, MA=0A+   02111-1307 USA.  */=0A+=0A+#ifndef _ATOMICITY_H=0A+#de=
fine _ATOMICITY_H	1=0A+=0A+#include <inttypes.h>=0A+=0A+#warning stub ato=
micity functions are not atomic=0A+#warning CAO This will get implemented=
 soon=0A+=0A+static inline int=0A+__attribute__ ((unused))=0A+exchange_an=
d_add (volatile uint32_t *mem, int val)=0A+{=0A+  int result =3D *mem;=0A=
+  *mem +=3D val;=0A+  return result;=0A+}=0A+=0A+static inline void=0A+_=
_attribute__ ((unused))=0A+atomic_add (volatile uint32_t *mem, int val)=0A=
+{=0A+  *mem +=3D val;=0A+}=0A+=0A+static inline int=0A+__attribute__ ((u=
nused))=0A+compare_and_swap (volatile long int *p, long int oldval, long =
int newval)=0A+{=0A+  if (*p !=3D oldval)=0A+    return 0;=0A+=0A+  *p =3D=
 newval;=0A+  return 1;=0A+}=0A+=0A+#endif /* atomicity.h */=0A--- libc-o=
rig/sysdeps/hppa/bits/link.h	2005-01-28 14:39:49.000000000 -0500=0A+++ li=
bc/sysdeps/hppa/bits/link.h	2005-03-01 13:42:58.000000000 -0500=0A@@ -0,0=
 +1,63 @@=0A+/* Copyright (C) 2005 Free Software Foundation, Inc.=0A+   T=
his file is part of the GNU C Library.=0A+=0A+   The GNU C Library is fre=
e software; you can redistribute it and/or=0A+   modify it under the term=
s of the GNU Lesser General Public=0A+   License as published by the Free=
 Software Foundation; either=0A+   version 2.1 of the License, or (at you=
r option) any later version.=0A+=0A+   The GNU C Library is distributed i=
n the hope that it will be useful,=0A+   but WITHOUT ANY WARRANTY; withou=
t even the implied warranty of=0A+   MERCHANTABILITY or FITNESS FOR A PAR=
TICULAR PURPOSE.  See the GNU=0A+   Lesser General Public License for mor=
e details.=0A+=0A+   You should have received a copy of the GNU Lesser Ge=
neral Public=0A+   License along with the GNU C Library; if not, write to=
 the Free=0A+   Software Foundation, Inc., 59 Temple Place, Suite 330, Bo=
ston, MA=0A+   02111-1307 USA.  */=0A+=0A+#ifndef	_LINK_H=0A+# error "Nev=
er include <bits/link.h> directly; use <link.h> instead."=0A+#endif=0A+=0A=
+/* Registers for entry into PLT on hppa.  */=0A+typedef struct La_hppa_r=
egs=0A+{=0A+  uint32_t lr_r8;=0A+  uint32_t lr_r9;=0A+  uint32_t lr_r10;=0A=
+  uint32_t lr_r11;=0A+  uint32_t lr_gr [8];=0A+  double lr_fr [8];=0A+  =
uint32_t lr_unat;=0A+  uint32_t lr_sp;=0A+} La_hppa_regs;=0A+=0A+/* Retur=
n values for calls from PLT on hppa.  */=0A+typedef struct La_hppa_retval=
=0A+{=0A+  uint32_t lrv_r8;=0A+  uint32_t lrv_r9;=0A+  uint32_t lrv_r10;=0A=
+  uint32_t lrv_r11;=0A+  double lr_fr [8];=0A+} La_hppa_retval;=0A+=0A+=0A=
+__BEGIN_DECLS=0A+=0A+extern Elf32_Addr la_hppa_gnu_pltenter (Elf32_Sym *=
__sym, unsigned int __ndx,=0A+				       uintptr_t *__refcook,=0A+				   =
    uintptr_t *__defcook,=0A+				       La_hppa_regs *__regs,=0A+				    =
   unsigned int *__flags,=0A+				       const char *__symname,=0A+				   =
    long int *__framesizep);=0A+extern unsigned int la_hppa_gnu_pltexit (=
Elf32_Sym *__sym, unsigned int __ndx,=0A+					uintptr_t *__refcook,=0A+		=
			uintptr_t *__defcook,=0A+					const La_hppa_regs *__inregs,=0A+					La=
_hppa_retval *__outregs,=0A+					const char *symname);=0A+=0A+__END_DECLS=
=0A--- libc-orig/sysdeps/hppa/dl-trampoline.S	1969-12-31 19:00:00.0000000=
00 -0500=0A+++ libc/sysdeps/hppa/dl-trampoline.S	2005-04-05 15:51:55.0000=
00000 -0400=0A@@ -0,0 +1,194 @@=0A+/* PLT trampolines. hppa version.=0A+ =
  Copyright (C) 2005 Free Software Foundation, Inc.=0A+   This file is pa=
rt of the GNU C Library.=0A+=0A+   The GNU C Library is free software; yo=
u can redistribute it and/or=0A+   modify it under the terms of the GNU L=
esser General Public=0A+   License as published by the Free Software Foun=
dation; either=0A+   version 2.1 of the License, or (at your option) any =
later version.=0A+=0A+   The GNU C Library is distributed in the hope tha=
t it will be useful,=0A+   but WITHOUT ANY WARRANTY; without even the imp=
lied warranty of=0A+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOS=
E.  See the GNU=0A+   Lesser General Public License for more details.=0A+=
=0A+   You should have received a copy of the GNU Lesser General Public=0A=
+   License along with the GNU C Library; if not, write to the Free=0A+  =
 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA=0A+   =
02111-1307 USA.  */=0A+=0A+#include <sysdep.h>=0A+=0A+/* This code gets c=
alled via the .plt stub, and is used in=0A+   dl-runtime.c to call the `_=
dl_fixup' function and then redirect =0A+   to the    address it returns.=
 `_dl_fixup' takes two=0A+   arguments, however `_dl_profile_fixup' takes=
 a number of =0A+   parameters for use with library auditing (LA).=0A+   =
=0A+   WARNING: This template is also used by gcc's __cffc, and expects=0A=
+   that the "bl" for _dl_runtime_resolve exist at a particular offset.=0A=
+   Do not change this template without changing gcc, while the prefix=0A=
+   "bl" should fix everything so gcc finds the right spot, it will=0A+  =
 slow down __cffc when it attempts to call fixup to resolve function=0A+ =
  descriptor references. Please refer to gcc/gcc/config/pa/fptr.c=0A+   =0A=
+   Enter with r19 =3D reloc offset, r20 =3D got-8, r21 =3D fixup ltp.  *=
/=0A+=0A+	/* FAKE bl to provide gcc's __cffc with fixup loc. */=0A+	.text=
=0A+	bl	_dl_fixup, %r2=0A+        .text=0A+        .align 4=0A+        .g=
lobal _dl_runtime_resolve=0A+        .type _dl_runtime_resolve,@function=0A=
+_dl_runtime_resolve:=0A+        .PROC=0A+        .CALLINFO FRAME=3D128,C=
ALLS,SAVE_RP,ENTRY_GR=3D3=0A+        .ENTRY=0A+        /* SAVE_RP says we=
 do */=0A+        stw %rp, -20(%sp)=0A+=0A+	/* Save static link register =
*/=0A+	stw	%r29,-16(%sp)=0A+ 	/* Save argument registers in the call stac=
k frame. */=0A+	stw	%r26,-36(%sp)=0A+	stw	%r25,-40(%sp)=0A+	stw	%r24,-44(=
%sp)=0A+	stw	%r23,-48(%sp)=0A+=0A+	/* Build a call frame, and save struct=
ure pointer. */=0A+	copy	%sp, %r26	/* Copy previous sp */=0A+	/* Save fun=
ction result address (on entry) */=0A+	stwm	%r28,128(%sp)=0A+=0A+	/* Save=
 floating point argument registers */=0A+	ldo	-56(%sp),%r26	=0A+	fstd,ma	=
%fr4,-8(%r26)=0A+	fstd,ma	%fr5,-8(%r26)=0A+	fstd,ma	%fr6,-8(%r26)=0A+	fst=
d	%fr7,0(%r26)=0A+=0A+	/* Fillin some frame info to follow ABI */=0A+	stw=
	%r21,-32(%sp)	/* PIC register value */=0A+	stw	%r26,-4(%sp)	/* Previous =
sp */=0A+=0A+ 	/* Set up args to fixup func, needs only two arguments  */=
=0A+	ldw	8+4(%r20),%r26		/* (1) got[1] =3D=3D struct link_map */=0A+	copy=
	%r19,%r25		/* (2) reloc offset  */=0A+=0A+ 	/* Call the real address res=
olver. */=0A+	bl	_dl_fixup,%rp=0A+	copy	%r21,%r19		/* set fixup func ltp =
*/=0A+=0A+	/* Load up the returned func descriptor */=0A+	copy	%ret0, %r2=
2=0A+	copy	%ret1, %r19=0A+=0A+	/* Reload arguments fp args */=0A+	ldo	-80=
(%sp),%r26=0A+	fldd,ma	8(%r26),%fr7=0A+	fldd,ma	8(%r26),%fr6=0A+	fldd,ma	=
8(%r26),%fr5=0A+	fldd	0(%r26),%fr4=0A+=0A+	/* Adjust sp, and restore func=
tion result address*/=0A+	ldwm	-128(%sp),%r28=0A+=0A+	/* Reload static li=
nk register */=0A+	ldw	-16(%sp),%r29=0A+	/* Reload general args */=0A+	ld=
w	-36(%sp),%r26=0A+	ldw	-40(%sp),%r25=0A+	ldw	-44(%sp),%r24=0A+	ldw	-48(%=
sp),%r23=0A+=0A+	/* Jump to new function, but return to previous function=
 */=0A+	bv	%r0(%r22)=0A+	ldw	-20(%sp),%rp=0A+        .EXIT=0A+        .PR=
OCEND=0A+	.size   _dl_runtime_resolve, . - _dl_runtime_resolve=0A+=0A+=0A=
+	/* FIXME:=0A+		Need to largely rewrite the bottom half of=0A+		this cod=
e in order to save and restore the=0A+		LA struct from the stack along wi=
th=0A+		interpreted parameters.=0A+	*/=0A+        .text=0A+        .align=
 4=0A+        .global _dl_runtime_profile=0A+        .type _dl_runtime_pr=
ofile,@function=0A+_dl_runtime_profile:=0A+        .PROC=0A+        .CALL=
INFO FRAME=3D128,CALLS,SAVE_RP,ENTRY_GR=3D3=0A+        .ENTRY=0A+=0A+    =
    /* SAVE_RP says we do */=0A+        stw %rp, -20(%sp)=0A+=0A+	/* Save=
 static link register */=0A+	stw	%r29,-16(%sp)=0A+ 	/* Save argument regi=
sters in the call stack frame. */=0A+	stw	%r26,-36(%sp)=0A+	stw	%r25,-40(=
%sp)=0A+	stw	%r24,-44(%sp)=0A+	stw	%r23,-48(%sp)=0A+=0A+	/* Build a call =
frame, and save structure pointer. */=0A+	copy	%sp, %r26	/* Copy previous=
 sp */=0A+	/* Save function result address (on entry) */=0A+	stwm	%r28,12=
8(%sp)=0A+=0A+	/* Save floating point argument registers */=0A+	ldo	-56(%=
sp),%r26	=0A+	fstd,ma	%fr4,-8(%r26)=0A+	fstd,ma	%fr5,-8(%r26)=0A+	fstd,ma=
	%fr6,-8(%r26)=0A+	fstd	%fr7,0(%r26)=0A+=0A+	/* Fillin some frame info to=
 follow ABI */=0A+	stw	%r21,-32(%sp)	/* PIC register value */=0A+	stw	%r2=
6,-4(%sp)	/* Previous sp */=0A+=0A+ 	/* Set up args to fixup func, needs =
three arguments  */=0A+	ldw	8+4(%r20),%r26		/* (1) got[1] =3D=3D struct l=
ink_map */=0A+	copy	%r19,%r25		/* (2) reloc offset  */=0A+	copy    %rp,%r=
24		/* (3) profile_fixup needs rp */=0A+=0A+ 	/* Call the real address re=
solver. */=0A+	bl	_dl_profile_fixup,%rp=0A+	copy	%r21,%r19		/* set fixup =
func ltp */=0A+=0A+	/* Load up the returned func descriptor */=0A+	copy	%=
ret0, %r22=0A+	copy	%ret1, %r19=0A+=0A+	/* Reload arguments fp args */=0A=
+	ldo	-80(%sp),%r26=0A+	fldd,ma	8(%r26),%fr7=0A+	fldd,ma	8(%r26),%fr6=0A+=
	fldd,ma	8(%r26),%fr5=0A+	fldd	0(%r26),%fr4=0A+=0A+	/* Adjust sp, and res=
tore function result address*/=0A+	ldwm	-128(%sp),%r28=0A+=0A+	/* Reload =
static link register */=0A+	ldw	-16(%sp),%r29=0A+	/* Reload general args =
*/=0A+	ldw	-36(%sp),%r26=0A+	ldw	-40(%sp),%r25=0A+	ldw	-44(%sp),%r24=0A+	=
ldw	-48(%sp),%r23=0A+=0A+	/* Jump to new function, but return to previous=
 function */=0A+	bv	%r0(%r22)=0A+	ldw	-20(%sp),%rp=0A+        .EXIT=0A+  =
      .PROCEND=0A+	.size   _dl_runtime_profile, . - _dl_runtime_profile=0A=
+=0A+=0A+=0A--- libc-orig/sysdeps/hppa/fpu/libm-test-ulps	2003-03-22 19:5=
2:10.000000000 -0500=0A+++ libc/sysdeps/hppa/fpu/libm-test-ulps	2004-09-2=
9 23:50:16.000000000 -0400=0A@@ -1,6 +1,9 @@=0A # Begin of automatic gene=
ration=0A =0A # atan2=0A+Test "atan2 (-0.00756827042671106339, -.00179273=
5857538728036) =3D=3D -1.80338464113663849327153994380":=0A+float: 6=0A+i=
float: 6=0A Test "atan2 (-0.75, -1.0) =3D=3D -2.4980915447965088516598341=
5456218025":=0A float: 3=0A ifloat: 3=0A@@ -258,9 +261,6 @@=0A ifloat: 1=0A=
 =0A # ctan=0A-Test "Real part of: ctan (-2 - 3 i) =3D=3D 0.3764025641504=
24829275122113032269084e-2 - 1.00323862735360980144635859782192726 i":=0A=
-double: 1=0A-idouble: 1=0A Test "Imaginary part of: ctan (0.75 + 1.25 i)=
 =3D=3D 0.160807785916206426725166058173438663 + 0.9753632850312356461935=
81759755216379 i":=0A double: 1=0A idouble: 1=0A@@ -479,6 +479,11 @@=0A f=
loat: 1=0A ifloat: 1=0A =0A+# lround=0A+Test "lround (1071930.0008) =3D=3D=
 1071930":=0A+double: -214511494=0A+idouble: -214511494=0A+=0A # sincos=0A=
 Test "sincos (M_PI_6l*2.0, &sin_res, &cos_res) puts 0.5 in cos_res":=0A =
double: 1=0A@@ -640,8 +645,8 @@=0A =0A # Maximal error of functions:=0A F=
unction: "atan2":=0A-float: 3=0A-ifloat: 3=0A+float: 6=0A+ifloat: 6=0A =0A=
 Function: "atanh":=0A float: 1=0A@@ -777,10 +782,6 @@=0A float: 1=0A ifl=
oat: 1=0A =0A-Function: Real part of "ctan":=0A-double: 1=0A-idouble: 1=0A=
-=0A Function: Imaginary part of "ctan":=0A double: 1=0A idouble: 1=0A---=
 libc-orig/sysdeps/hppa/sysdep.h	2003-10-15 01:31:42.000000000 -0400=0A++=
+ libc/sysdeps/hppa/sysdep.h	2004-11-01 01:51:58.000000000 -0500=0A@@ -22=
,9 +22,8 @@=0A #include <sys/syscall.h>=0A #include "config.h"=0A =0A-#if=
ndef ASM_LINE_SEP=0A-#define ASM_LINE_SEP ;=0A-#endif=0A+#undef ASM_LINE_=
SEP=0A+#define ASM_LINE_SEP ! =0A =0A #ifdef	__ASSEMBLER__=0A =0A@@ -51,1=
3 +50,9 @@=0A #define END(name)							      \=0A   .PROCEND=0A =0A-=0A-/*=
 If compiled for profiling, call `mcount' at the start of each function. =
 */=0A+/* GCC does everything for us. */=0A #ifdef	PROF=0A-/* The mcount =
code relies on a normal frame pointer being on the stack=0A-   to locate =
our caller, so push one just for its benefit.  */=0A-#define CALL_MCOUNT =
\=0A-  XXX	ASM_LINE_SEP=0A+#define CALL_MCOUNT =0A #else=0A #define CALL_=
MCOUNT		/* Do nothing.  */=0A #endif=0A=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=0A--- glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/sysdep.h.O=
rig	2006-03-15 16:07:33.000000000 +0100=0A+++ glibc-2.3.6/sysdeps/unix/sy=
sv/linux/hppa/sysdep.h	2006-03-15 16:08:17.000000000 +0100=0A@@ -22,28 +2=
2,34 @@=0A #include <asm/unistd.h>=0A #include <sysdeps/generic/sysdep.h>=
=0A #include <sys/syscall.h>=0A-#include "config.h"=0A =0A-#ifndef ASM_LI=
NE_SEP=0A-# define ASM_LINE_SEP ;=0A-#endif=0A+#undef ASM_LINE_SEP=0A+#de=
fine ASM_LINE_SEP ! =0A =0A #undef SYS_ify=0A #define SYS_ify(syscall_nam=
e)	(__NR_##syscall_name)=0A =0A+/* WARNING: TREG must be a callee saves r=
egister so =0A+   that it doesn't have to be restored after a call =0A+  =
 to another function */=0A #ifdef PIC=0A-/* WARNING: CANNOT BE USED IN A =
NOP! */=0A-# define STW_PIC stw %r19, -32(%sr0, %sp) ASM_LINE_SEP=0A-# de=
fine LDW_PIC ldw -32(%sr0, %sp), %r19 ASM_LINE_SEP=0A-# define STW_ASM_PI=
C	"       copy %%r19, %%r4\n"=0A-# define LDW_ASM_PIC	"       copy %%r4, =
%%r19\n"=0A-# define USING_GR4	"%r4",=0A+# define TREG %r3=0A+# define SA=
VE_PIC(SREG) copy		%r19, SREG	ASM_LINE_SEP=0A+# define LOAD_PIC(LREG) cop=
y		LREG, %r19	ASM_LINE_SEP=0A+/* Inline assembly defines */=0A+# define T=
REG_ASM "%r4" /* Cant clobber r3, it holds framemarker */=0A+# define SAV=
E_ASM_PIC	"       copy		%%r19, %" TREG_ASM "\n"=0A+# define LOAD_ASM_PIC	=
"       copy		%" TREG_ASM ", %%r19\n"=0A+# define USING_TREG	TREG_ASM,=0A=
 #else=0A-# define STW_PIC ASM_LINE_SEP=0A-# define LDW_PIC ASM_LINE_SEP=0A=
-# define STW_ASM_PIC	" \n"=0A-# define LDW_ASM_PIC	" \n"=0A-# define USI=
NG_GR4=0A+# define TREG %r3=0A+# define SAVE_PIC(SREG) nop ASM_LINE_SEP=0A=
+# define LOAD_PIC(LREG) nop ASM_LINE_SEP=0A+/* Inline assembly defines *=
/=0A+# define TREG_ASM =0A+# define SAVE_ASM_PIC	"nop \n"=0A+# define LOA=
D_ASM_PIC	"nop \n"=0A+# define USING_TREG=0A #endif=0A =0A #ifdef __ASSEM=
BLER__=0A@@ -76,31 +82,73 @@=0A =0A /* We don't want the label for the er=
ror handle to be global when we define=0A    it here.  */=0A-#ifdef PIC=0A=
+/*#ifdef PIC=0A # define SYSCALL_ERROR_LABEL 0f=0A #else=0A # define SYS=
CALL_ERROR_LABEL syscall_error=0A-#endif=0A+#endif*/=0A+=0A+/* Argument m=
anipulation from the stack for preparing to=0A+   make a syscall */=0A+=0A=
+#define DOARGS_0 /* nothing */=0A+#define DOARGS_1 /* nothing */=0A+#def=
ine DOARGS_2 /* nothing */=0A+#define DOARGS_3 /* nothing */=0A+#define D=
OARGS_4 /* nothing */=0A+#define DOARGS_5 ldw		-52(%sp), %r22		ASM_LINE_S=
EP=0A+#define DOARGS_6 DOARGS_5 ldw		-56(%sp), %r21	ASM_LINE_SEP=0A+=0A+#=
define UNDOARGS_0 /* nothing */=0A+#define UNDOARGS_1 /* nothing */=0A+#d=
efine UNDOARGS_2 /* nothing */=0A+#define UNDOARGS_3 /* nothing */=0A+#de=
fine UNDOARGS_4 /* nothing */=0A+#define UNDOARGS_5 /* nothing */=0A+#def=
ine UNDOARGS_6 /* nothing */=0A =0A /* Define an entry point visible from=
 C.=0A =0A    There is currently a bug in gdb which prevents us from spec=
ifying=0A    incomplete stabs information.  Fake some entries here which =
specify=0A    the current source file.  */=0A-#define	ENTRY(name)						\=0A=
-	.text					ASM_LINE_SEP	\=0A-	.export C_SYMBOL_NAME(name)		ASM_LINE_SEP	=
\=0A-	.type	C_SYMBOL_NAME(name),@function	ASM_LINE_SEP	\=0A-	C_LABEL(name=
)				ASM_LINE_SEP	\=0A-	CALL_MCOUNT				ASM_LINE_SEP=0A+#define	ENTRY(name=
)							\=0A+	.text						ASM_LINE_SEP	\=0A+	.align ALIGNARG(4)				ASM_LIN=
E_SEP	\=0A+	.export C_SYMBOL_NAME(name)			ASM_LINE_SEP	\=0A+	.type	C_SYMB=
OL_NAME(name),@function		ASM_LINE_SEP	\=0A+	C_LABEL(name)					ASM_LINE_SE=
P	\=0A+	.PROC						ASM_LINE_SEP	\=0A+	.CALLINFO FRAME=3D64,CALLS,SAVE_RP,=
ENTRY_GR=3D3	ASM_LINE_SEP	\=0A+	.ENTRY						ASM_LINE_SEP	\=0A+	/* SAVE_RP=
 says we do */			ASM_LINE_SEP	\=0A+	stw		%rp, -20(%sr0, %sp)		ASM_LINE_SE=
P	\=0A+	/*FIXME: Call mcount? (carefull with stack!) */=0A+=0A+/* Some sy=
scall wrappers do not call other functions, and=0A+   hence are classifie=
d as leaf, so add NO_CALLS for gdb */=0A+#define	ENTRY_LEAF(name)						\=0A=
+	.text						ASM_LINE_SEP	\=0A+	.align	ALIGNARG(4)				ASM_LINE_SEP	\=0A+	=
.export C_SYMBOL_NAME(name)			ASM_LINE_SEP	\=0A+	.type	C_SYMBOL_NAME(name=
),@function		ASM_LINE_SEP	\=0A+	C_LABEL(name)					ASM_LINE_SEP	\=0A+	.PRO=
C						ASM_LINE_SEP	\=0A+	.CALLINFO FRAME=3D64,NO_CALLS,SAVE_RP,ENTRY_GR=3D=
3	ASM_LINE_SEP	\=0A+	.ENTRY						ASM_LINE_SEP	\=0A+	/* SAVE_RP says we do=
 */			ASM_LINE_SEP	\=0A+	stw		%rp, -20(%sr0, %sp)		ASM_LINE_SEP	\=0A+	/*F=
IXME: Call mcount? (carefull with stack!) */=0A =0A #undef	END=0A #define=
 END(name)							\=0A-1:							ASM_LINE_SEP	\=0A-.size	C_SYMBOL_NAME(name=
),1b-C_SYMBOL_NAME(name)	ASM_LINE_SEP=0A-=0A-/* If compiled for profiling=
, call `mcount' at the start of each function.  */=0A-/* No, don't bother=
.  gcc will put the call in for us.  */=0A+ 	.EXIT						ASM_LINE_SEP	\=0A=
+	.PROCEND					ASM_LINE_SEP	\=0A+.size	C_SYMBOL_NAME(name), .-C_SYMBOL_NA=
ME(name)	ASM_LINE_SEP=0A+=0A+/* If compiled for profiling, call `mcount' =
at the start =0A+   of each function. No, don't bother.  gcc will put the=
 =0A+   call in for us.  */=0A #define CALL_MCOUNT		/* Do nothing.  */=0A=
 =0A /* syscall wrappers consist of=0A@@ -117,59 +165,66 @@=0A 	nop=0A */=
=0A =0A-#define	PSEUDO(name, syscall_name, args)			\=0A-  ENTRY (name)			=
				\=0A-  DO_CALL(syscall_name, args)			ASM_LINE_SEP	\=0A-  nop						ASM=
_LINE_SEP=0A+#define	PSEUDO(name, syscall_name, args)				\=0A+	ENTRY (nam=
e)					ASM_LINE_SEP	\=0A+	/* If necc. load args from stack */		ASM_LINE_S=
EP	\=0A+	DOARGS_##args					ASM_LINE_SEP	\=0A+	DO_CALL (syscall_name, args=
)			ASM_LINE_SEP	\=0A+	UNDOARGS_##args					ASM_LINE_SEP	\=0A+	nop						AS=
M_LINE_SEP=0A =0A #define ret \=0A 	/* Return value set by ERRNO code */	=
ASM_LINE_SEP	\=0A-	bv 0(2)					ASM_LINE_SEP	\=0A-	nop					ASM_LINE_SEP=0A=
+	bv,n		0(2)				ASM_LINE_SEP=0A =0A #undef	PSEUDO_END=0A-#define	PSEUDO_E=
ND(name)					\=0A-  END (name)=0A+#define	PSEUDO_END(name)						\=0A+	END=
 (name)=0A =0A /* We don't set the errno on the return from the syscall *=
/=0A-#define	PSEUDO_NOERRNO(name, syscall_name, args)		\=0A-  ENTRY (name=
)							\=0A-  DO_CALL_NOERRNO(syscall_name, args)		ASM_LINE_SEP	\=0A-  n=
op						ASM_LINE_SEP=0A+#define	PSEUDO_NOERRNO(name, syscall_name, args)	=
		\=0A+	ENTRY_LEAF (name)				ASM_LINE_SEP	\=0A+	DOARGS_##args					ASM_LIN=
E_SEP	\=0A+	DO_CALL_NOERRNO (syscall_name, args)		ASM_LINE_SEP	\=0A+	UNDO=
ARGS_##args					ASM_LINE_SEP	\=0A+	nop						ASM_LINE_SEP=0A =0A-#define r=
et_NOERRNO ret=0A+#define ret_NOERRNO	ret=0A =0A #undef	PSEUDO_END_NOERRN=
O=0A-#define	PSEUDO_END_NOERRNO(name)				\=0A-  END (name)=0A+#define	PSE=
UDO_END_NOERRNO(name)					\=0A+	END (name)=0A =0A /* This has to return t=
he error value */=0A #undef  PSEUDO_ERRVAL=0A-#define PSEUDO_ERRVAL(name,=
 syscall_name, args)			\=0A-	ENTRY(name)						\=0A-	DO_CALL_ERRVAL(syscal=
l_name, args)	ASM_LINE_SEP	\=0A-	nop					ASM_LINE_SEP=0A+#define PSEUDO_E=
RRVAL(name, syscall_name, args)				\=0A+	ENTRY_LEAF (name)				ASM_LINE_SE=
P	\=0A+	DOARGS_##args					ASM_LINE_SEP	\=0A+	DO_CALL_ERRVAL (syscall_name=
, args)		ASM_LINE_SEP	\=0A+	UNDOARGS_##args					ASM_LINE_SEP	\=0A+	nop			=
			ASM_LINE_SEP=0A =0A #define ret_ERRVAL ret=0A =0A #undef	PSEUDO_END_ER=
RVAL=0A-#define PSEUDO_END_ERRVAL(name)					\=0A-	END(name)=0A+#define PS=
EUDO_END_ERRVAL(name)						\=0A+	END (name)=0A =0A #undef JUMPTARGET=0A #=
define JUMPTARGET(name)	name=0A #define SYSCALL_PIC_SETUP	/* Nothing.  */=
=0A =0A =0A-/* All the syscall assembly macros rely on finding the appror=
iate=0A+/* FIXME: This comment is not true.=0A+ * All the syscall assembl=
y macros rely on finding the approriate=0A    SYSCALL_ERROR_LABEL or rath=
er HANDLER. */=0A =0A /* int * __errno_location(void) so you have to stor=
e your value=0A    into the return address! */=0A-#define DEFAULT_SYSCALL=
_ERROR_HANDLER 			\=0A-	.import __errno_location,code	ASM_LINE_SEP	\=0A-	=
/* branch to errno handler */	ASM_LINE_SEP	\=0A-	bl __errno_location,%rp	=
	ASM_LINE_SEP=0A+#define DEFAULT_SYSCALL_ERROR_HANDLER 					\=0A+	.import=
 __errno_location,code			ASM_LINE_SEP	\=0A+	/* branch to errno handler */=
			ASM_LINE_SEP	\=0A+	bl		__errno_location, %rp		ASM_LINE_SEP=0A =0A /* H=
ere are the myriad of configuration options that the above can=0A    work=
 for... what we've done is provide the framework for future=0A@@ -193,7 +=
248,6 @@=0A # endif=0A #endif=0A =0A-=0A /* Linux takes system call argum=
ents in registers:=0A 	syscall number	gr20=0A 	arg 1		gr26=0A@@ -209,8 +2=
63,8 @@=0A 	arg 2		gr25=0A 	arg 3		gr24=0A 	arg 4		gr23=0A-	arg 5		-52(gr=
30)=0A-	arg 6		-56(gr30)=0A+	arg 5		-52(sp)=0A+	arg 6		-56(sp)=0A =0A    =
gr22 and gr21 are caller-saves, so we can just load the arguments=0A    t=
here and generally be happy. */=0A@@ -219,81 +273,63 @@=0A  * is intended=
 to mimic the if (__sys_res...)=0A  * code inside INLINE_SYSCALL=0A  */=0A=
+#define NO_ERROR -0x1000=0A =0A #undef	DO_CALL=0A-#define DO_CALL(syscal=
l_name, args)				\=0A-	DOARGS_##args				ASM_LINE_SEP	\=0A-	STW_PIC					AS=
M_LINE_SEP	\=0A-	/* Do syscall, delay loads # */		ASM_LINE_SEP	\=0A-	ble =
 0x100(%sr2,%r0)			ASM_LINE_SEP	\=0A-	ldi SYS_ify (syscall_name), %r20	AS=
M_LINE_SEP	\=0A-	ldi -0x1000,%r1				ASM_LINE_SEP	\=0A-	cmpb,>>=3D,n %r1,%=
ret0,0f			ASM_LINE_SEP	\=0A-	/* save rp or we get lost */		ASM_LINE_SEP	\=
=0A-	stw %rp, -20(%sr0,%sp)			ASM_LINE_SEP	\=0A-	/* Restore r19 from fram=
e */		ASM_LINE_SEP	\=0A-	LDW_PIC					ASM_LINE_SEP	\=0A-	stw %ret0, -24(%s=
r0,%sp)		ASM_LINE_SEP	\=0A-	SYSCALL_ERROR_HANDLER			ASM_LINE_SEP	\=0A-	/*=
 create frame */			ASM_LINE_SEP	\=0A-	ldo 64(%sp), %sp			ASM_LINE_SEP	\=0A=
-	ldo -64(%sp), %sp			ASM_LINE_SEP	\=0A-	/* OPTIMIZE: Don't reload r19 */=
	ASM_LINE_SEP	\=0A-	/* do a -1*syscall_ret0 */		ASM_LINE_SEP	\=0A-	ldw -2=
4(%sr0,%sp), %r26			ASM_LINE_SEP	\=0A-	sub %r0, %r26, %r26			ASM_LINE_SEP=
	\=0A-	/* Store into errno location */		ASM_LINE_SEP	\=0A-	stw %r26, 0(%s=
r0,%ret0)			ASM_LINE_SEP	\=0A-	/* return -1 as error */		ASM_LINE_SEP	\=0A=
-	ldo -1(%r0), %ret0			ASM_LINE_SEP	\=0A-	ldw -20(%sr0,%sp), %rp			ASM_LI=
NE_SEP	\=0A-0:						ASM_LINE_SEP	\=0A-	UNDOARGS_##args				ASM_LINE_SEP=0A=
+#define DO_CALL(syscall_name, args)					\=0A+  	copy		TREG, %r1			ASM_LI=
NE_SEP	\=0A+	copy		%sp, TREG			ASM_LINE_SEP	\=0A+	/* Create a frame */			=
	ASM_LINE_SEP	\=0A+	stwm		%r1, 64(%sp)			ASM_LINE_SEP	\=0A+	stw		%rp, -20=
(%sp)			ASM_LINE_SEP	\=0A+	stw		TREG, -4(%sp)			ASM_LINE_SEP	\=0A+	/* Sav=
e r19 */					ASM_LINE_SEP	\=0A+	SAVE_PIC (TREG)					ASM_LINE_SEP	\=0A+	/*=
 Do syscall, delay loads # */			ASM_LINE_SEP	\=0A+	ble		0x100(%sr2, %r0)	=
	ASM_LINE_SEP	\=0A+	ldi		SYS_ify (syscall_name), %r20	ASM_LINE_SEP	\=0A+	=
ldi		NO_ERROR, %r1			ASM_LINE_SEP	\=0A+	cmpb,>>=3D,n	%r1, %ret0,L(pre_end=
)		ASM_LINE_SEP	\=0A+	/* Restore r19 from TREG */			ASM_LINE_SEP	\=0A+	LO=
AD_PIC(TREG) /* delay */			ASM_LINE_SEP	\=0A+	SYSCALL_ERROR_HANDLER				AS=
M_LINE_SEP	\=0A+	/* Use TREG for temp storage */			ASM_LINE_SEP	\=0A+	cop=
y		%ret0, TREG /* delay */		ASM_LINE_SEP	\=0A+	/* OPTIMIZE: Don't reload =
r19 */		ASM_LINE_SEP	\=0A+	/* do a -1*syscall_ret0 */			ASM_LINE_SEP	\=0A=
+	sub		%r0, TREG, TREG			ASM_LINE_SEP	\=0A+	/* Store into errno location =
*/			ASM_LINE_SEP	\=0A+	stw		TREG, 0(%sr0, %ret0)		ASM_LINE_SEP	\=0A+	/* =
return -1 as error */			ASM_LINE_SEP	\=0A+	ldo		-1(%r0), %ret0			ASM_LINE=
_SEP	\=0A+L(pre_end):						ASM_LINE_SEP	\=0A+	/* Restore return pointer *=
/			ASM_LINE_SEP	\=0A+	ldw		-84(%sp), %rp			ASM_LINE_SEP	\=0A+	/* Restore=
 our frame, restoring TREG */		ASM_LINE_SEP	\=0A+	ldwm		-64(%sp), TREG			=
ASM_LINE_SEP=0A =0A /* We do nothing with the return, except hand it back=
 to someone else */=0A #undef  DO_CALL_NOERRNO=0A-#define DO_CALL_NOERRNO=
(syscall_name, args)			\=0A-	DOARGS_##args                               =
            \=0A-	/* No need to store r19 */		ASM_LINE_SEP	\=0A-	ble  0x1=
00(%sr2,%r0)                    ASM_LINE_SEP    \=0A-	ldi SYS_ify (syscal=
l_name), %r20        ASM_LINE_SEP    \=0A-	/* Caller will restore r19 */	=
	ASM_LINE_SEP	\=0A-	UNDOARGS_##args=0A+#define DO_CALL_NOERRNO(syscall_na=
me, args)				\=0A+	/* No need to store r19 */			ASM_LINE_SEP	\=0A+	ble		0=
x100(%sr2, %r0)		ASM_LINE_SEP    \=0A+	ldi		SYS_ify (syscall_name), %r20	=
ASM_LINE_SEP    \=0A+	/* Caller will restore r19 */			ASM_LINE_SEP=0A =0A=
 /* Here, we return the ERRVAL in assembly, note we don't call the=0A    =
error handler function, but we do 'negate' the return _IF_=0A    it's an =
error. Not sure if this is the right semantic. */=0A =0A #undef	DO_CALL_E=
RRVAL=0A-#define DO_CALL_ERRVAL(syscall_name, args)			\=0A-	DOARGS_##args=
				ASM_LINE_SEP	\=0A-	/* No need to store r19 */		ASM_LINE_SEP	\=0A-	ble=
  0x100(%sr2,%r0)			ASM_LINE_SEP	\=0A-	ldi SYS_ify (syscall_name), %r20	A=
SM_LINE_SEP	\=0A-	/* Caller will restore r19 */		ASM_LINE_SEP	\=0A-	ldi -=
0x1000,%r1				ASM_LINE_SEP	\=0A-	cmpb,>>=3D,n %r1,%ret0,0f			ASM_LINE_SEP=
	\=0A-	sub %r0, %ret0, %ret0			ASM_LINE_SEP	\=0A-0:						ASM_LINE_SEP	\=0A=
-	UNDOARGS_##args				ASM_LINE_SEP=0A-=0A-#define DOARGS_0 /* nothing */=0A=
-#define DOARGS_1 /* nothing */=0A-#define DOARGS_2 /* nothing */=0A-#def=
ine DOARGS_3 /* nothing */=0A-#define DOARGS_4 /* nothing */=0A-#define D=
OARGS_5 ldw -52(%r30), %r22		ASM_LINE_SEP=0A-#define DOARGS_6 ldw -52(%r3=
0), %r22		ASM_LINE_SEP	\=0A-		 ldw -56(%r30), %r21		ASM_LINE_SEP=0A-=0A-=0A=
-#define UNDOARGS_0 /* nothing */=0A-#define UNDOARGS_1 /* nothing */=0A-=
#define UNDOARGS_2 /* nothing */=0A-#define UNDOARGS_3 /* nothing */=0A-#=
define UNDOARGS_4 /* nothing */=0A-#define UNDOARGS_5 /* nothing */=0A-#d=
efine UNDOARGS_6 /* nothing */=0A+#define DO_CALL_ERRVAL(syscall_name, ar=
gs)				\=0A+	/* No need to store r19 */			ASM_LINE_SEP	\=0A+	ble		0x100(%=
sr2, %r0)		ASM_LINE_SEP	\=0A+	ldi		SYS_ify (syscall_name), %r20	ASM_LINE_=
SEP	\=0A+	/* Caller will restore r19 */			ASM_LINE_SEP	\=0A+	ldi		NO_ERRO=
R, %r1			ASM_LINE_SEP	\=0A+	cmpb,>>=3D,n	%r1, %ret0, 0f			ASM_LINE_SEP	\=0A=
+	sub		%r0, %ret0, %ret0		ASM_LINE_SEP	\=0A+0:							ASM_LINE_SEP=0A =0A =
#else=0A =0A@@ -305,27 +341,28 @@=0A    registers r20 -> r26 will conflic=
t with the list so they=0A    are treated specially. Although r19 is clob=
bered by the syscall=0A    we cannot say this because it would violate AB=
I, thus we say=0A-   r4 is clobbered and use that register to save/restor=
e r19=0A+   TREG is clobbered and use that register to save/restore r19=0A=
    across the syscall. */=0A =0A-#define CALL_CLOB_REGS	"%r1", "%r2", US=
ING_GR4 \=0A+#define CALL_CLOB_REGS	"%r1", "%r2", USING_TREG \=0A 		 	"%r=
20", "%r29", "%r31"=0A =0A #undef INLINE_SYSCALL=0A-#define INLINE_SYSCAL=
L(name, nr, args...)	({			\=0A+#define INLINE_SYSCALL(name, nr, args...)	=
			\=0A+({									\=0A 	long __sys_res;							\=0A 	{								\=0A 		regi=
ster unsigned long __res asm("r28");		\=0A 		LOAD_ARGS_##nr(args)					\=0A=
-		/* FIXME: HACK stw/ldw r19 around syscall */		\=0A+		/* FIXME: HACK sa=
ve/load r19 around syscall */		\=0A 		asm volatile(						\=0A-			STW_ASM_=
PIC					\=0A-			"	ble  0x100(%%sr2, %%r0)\n"		\=0A-			"	ldi %1, %%r20\n"	=
		\=0A-			LDW_ASM_PIC					\=0A+			SAVE_ASM_PIC					\=0A+			"	ble		0x100(%=
%sr2, %%r0)\n"	\=0A+			"	ldi		%1, %%r20\n"		\=0A+			LOAD_ASM_PIC					\=0A=
 			: "=3Dr" (__res)					\=0A 			: "i" (SYS_ify(name)) ASM_ARGS_##nr		\=0A=
-			: CALL_CLOB_REGS CLOB_ARGS_##nr			\=0A+			: "memory", CALL_CLOB_REGS =
CLOB_ARGS_##nr	\=0A 		);							\=0A 		__sys_res =3D (long)__res;				\=0A =
	}								\=0A@@ -339,13 +376,13 @@=0A /* INTERNAL_SYSCALL_DECL - Allows =
us to setup some function static=0A    value to use within the context of=
 the syscall=0A    INTERNAL_SYSCALL_ERROR_P - Returns 0 if it wasn't an e=
rror, 1 otherwise=0A-   You are allowed to use the syscall result (val) a=
nd the DECL error variable=0A-   to determine what went wrong.=0A+   You =
are allowed to use the syscall result (val) and the DECL error =0A+   var=
iable to determine what went wrong.=0A    INTERLAL_SYSCALL_ERRNO - Munges=
 the val/err pair into the error number.=0A    In our case we just flip t=
he sign. */=0A =0A #undef INTERNAL_SYSCALL_DECL=0A-#define INTERNAL_SYSCA=
LL_DECL(err) do { } while (0)=0A+#define INTERNAL_SYSCALL_DECL(err) =0A =0A=
 /* Equivalent to  (val < 0)&&(val > -4095) which is what we want */=0A #=
undef INTERNAL_SYSCALL_ERROR_P=0A@@ -357,45 +394,69 @@=0A =0A /* Similar =
to INLINE_SYSCALL but we don't set errno */=0A #undef INTERNAL_SYSCALL=0A=
-#define INTERNAL_SYSCALL(name, err, nr, args...) 		\=0A-({								\=0A-	=
long __sys_res;						\=0A-	{							\=0A-		register unsigned long __res as=
m("r28");	\=0A-		LOAD_ARGS_##nr(args)				\=0A-		/* FIXME: HACK stw/ldw r1=
9 around syscall */	\=0A-		asm volatile(					\=0A-			STW_ASM_PIC				\=0A-=
			"	ble  0x100(%%sr2, %%r0)\n"	\=0A-			"	ldi %1, %%r20\n"		\=0A-			LDW_A=
SM_PIC				\=0A-			: "=3Dr" (__res)				\=0A-			: "i" (SYS_ify(name)) ASM_A=
RGS_##nr	\=0A-			: CALL_CLOB_REGS CLOB_ARGS_##nr		\=0A-		);						\=0A-		_=
_sys_res =3D (long)__res;			\=0A-	}							\=0A-	__sys_res;						\=0A+#def=
ine INTERNAL_SYSCALL(name, err, nr, args...) 			\=0A+({									\=0A+	lon=
g __sys_res;							\=0A+	{								\=0A+		register unsigned long __res asm=
("r28");		\=0A+		LOAD_ARGS_##nr(args)					\=0A+		/* FIXME: HACK save/load=
 r19 around syscall */		\=0A+		asm volatile(						\=0A+			SAVE_ASM_PIC			=
		\=0A+			"	ble	0x100(%%sr2, %%r0)\n"		\=0A+			"	ldi	%1, %%r20\n"			\=0A+=
			LOAD_ASM_PIC					\=0A+			: "=3Dr" (__res)					\=0A+			: "i" (SYS_ify(n=
ame)) ASM_ARGS_##nr		\=0A+			: "memory", CALL_CLOB_REGS CLOB_ARGS_##nr	\=0A=
+		);							\=0A+		__sys_res =3D (long)__res;				\=0A+	}								\=0A+	__s=
ys_res;							\=0A+ })=0A+=0A+=0A+/* The _NCS variant allows non-constant=
 syscall numbers.  */=0A+#undef INTERNAL_SYSCALL_NCS=0A+#define INTERNAL_=
SYSCALL_NCS(name, err, nr, args...) 			\=0A+({									\=0A+	long __sys_r=
es;							\=0A+	{								\=0A+		register unsigned long __res asm("r28");	=
	\=0A+		LOAD_ARGS_##nr(args)					\=0A+		/* FIXME: HACK save/load r19 arou=
nd syscall */		\=0A+		asm volatile(						\=0A+			SAVE_ASM_PIC					\=0A+		=
	"	ble	0x100(%%sr2, %%r0)\n"		\=0A+			"	copy	%1, %%r20\n"			\=0A+			LOAD_=
ASM_PIC					\=0A+			: "=3Dr" (__res)					\=0A+			: "r" (name) ASM_ARGS_##=
nr			\=0A+			: "memory", CALL_CLOB_REGS CLOB_ARGS_##nr	\=0A+		);							\=0A=
+		__sys_res =3D (long)__res;				\=0A+	}								\=0A+	__sys_res;							\=0A=
  })=0A =0A #define LOAD_ARGS_0()=0A-#define LOAD_ARGS_1(r26)					\=0A-	r=
egister unsigned long __r26 __asm__("r26") =3D (unsigned long)(r26);   \=0A=
+#define LOAD_ARGS_1(r26)						\=0A+	register unsigned long __r26 __asm__=
("r26") =3D (unsigned long)(r26); \=0A 	LOAD_ARGS_0()=0A-#define LOAD_ARG=
S_2(r26,r25)					\=0A-	register unsigned long __r25 __asm__("r25") =3D (u=
nsigned long)(r25);   \=0A+#define LOAD_ARGS_2(r26,r25)						\=0A+	regist=
er unsigned long __r25 __asm__("r25") =3D (unsigned long)(r25); \=0A 	LOA=
D_ARGS_1(r26)=0A-#define LOAD_ARGS_3(r26,r25,r24)				\=0A-	register unsig=
ned long __r24 __asm__("r24") =3D (unsigned long)(r24);   \=0A+#define LO=
AD_ARGS_3(r26,r25,r24)					\=0A+	register unsigned long __r24 __asm__("r2=
4") =3D (unsigned long)(r24); \=0A 	LOAD_ARGS_2(r26,r25)=0A-#define LOAD_=
ARGS_4(r26,r25,r24,r23)				\=0A-	register unsigned long __r23 __asm__("r2=
3") =3D (unsigned long)(r23);   \=0A+#define LOAD_ARGS_4(r26,r25,r24,r23)=
					\=0A+	register unsigned long __r23 __asm__("r23") =3D (unsigned long=
)(r23); \=0A 	LOAD_ARGS_3(r26,r25,r24)=0A-#define LOAD_ARGS_5(r26,r25,r24=
,r23,r22)			\=0A-	register unsigned long __r22 __asm__("r22") =3D (unsign=
ed long)(r22);   \=0A+#define LOAD_ARGS_5(r26,r25,r24,r23,r22)				\=0A+	r=
egister unsigned long __r22 __asm__("r22") =3D (unsigned long)(r22); \=0A=
 	LOAD_ARGS_4(r26,r25,r24,r23)=0A-#define LOAD_ARGS_6(r26,r25,r24,r23,r22=
,r21)			\=0A-	register unsigned long __r21 __asm__("r21") =3D (unsigned l=
ong)(r21);   \=0A+#define LOAD_ARGS_6(r26,r25,r24,r23,r22,r21)				 \=0A+	=
register unsigned long __r21 __asm__("r21") =3D (unsigned long)(r21); \=0A=
 	LOAD_ARGS_5(r26,r25,r24,r23,r22)=0A =0A /* Even with zero args we use r=
20 for the syscall number */=0A=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=0A--- glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/sysdep.c.Orig	20=
06-03-15 09:58:13.000000000 +0100=0A+++ glibc-2.3.6/sysdeps/unix/sysv/lin=
ux/hppa/sysdep.c	2006-03-15 11:00:04.000000000 +0100=0A@@ -16,12 +16,12 @=
@=0A    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA=
=0A    02111-1307 USA.  */=0A =0A+#include <stdarg.h>=0A #include <sysdep=
.h>=0A #include <errno.h>=0A =0A extern int __syscall_error(int err_no);=0A=
-extern int syscall (int sysnum, int arg0, int arg1, int arg2,=0A-		    i=
nt arg3, int arg4, int arg5);=0A+extern long int syscall (long int __sysn=
o, ...) __THROW;=0A =0A /* This routine is jumped to by all the syscall h=
andlers, to stash=0A    an error number into errno.  */=0A@@ -37,22 +37,3=
5 @@=0A    typically be in syscall.S. Also note that we have INLINE_SYSCA=
LL,=0A    INTERNAL_SYSCALL, and all the generated pure assembly syscall w=
rappers.=0A    How often the function is used is unknown. */=0A-int=0A-sy=
scall (int sysnum, int arg0, int arg1, int arg2, int arg3, int arg4,=0A-	=
 int arg5)=0A+=0A+long int =0A+syscall (long int __sysno, ...) =0A {=0A  =
 /* FIXME: Keep this matching INLINE_SYSCALL for hppa */=0A+  va_list arg=
s;=0A+  long int arg0, arg1, arg2, arg3, arg4, arg5;=0A   long int __sys_=
res;=0A+=0A+  /* Load varargs */=0A+  va_start (args, __sysno);=0A+  arg0=
 =3D va_arg (args, long int);=0A+  arg1 =3D va_arg (args, long int);=0A+ =
 arg2 =3D va_arg (args, long int);=0A+  arg3 =3D va_arg (args, long int);=
=0A+  arg4 =3D va_arg (args, long int);=0A+  arg5 =3D va_arg (args, long =
int);=0A+  va_end (args);=0A+  =0A   {=0A     register unsigned long int =
__res asm("r28");=0A     LOAD_ARGS_6 (arg0, arg1, arg2, arg3, arg4, arg5)=
=0A-    asm volatile (STW_ASM_PIC=0A-		  "	ble  0x100(%%sr2, %%r0)	\n"=0A=
-		  "	copy %1, %%r20		\n"=0A-		  LDW_ASM_PIC=0A+    asm volatile (SAVE_A=
SM_PIC=0A+		  "	ble		0x100(%%sr2, %%r0)	\n"=0A+		  "	copy		%1, %%r20		\n"=
=0A+		  LOAD_ASM_PIC=0A 		  : "=3Dr" (__res)=0A-		  : "r" (sysnum) ASM_AR=
GS_6=0A-		  : CALL_CLOB_REGS CLOB_ARGS_6);=0A+		  : "r" (__sysno) ASM_ARG=
S_6=0A+		  : "memory", CALL_CLOB_REGS CLOB_ARGS_6);=0A     __sys_res =3D =
__res;=0A   }=0A   if ((unsigned long int) __sys_res >=3D (unsigned long =
int) -4095)=0A@@ -62,3 +75,4 @@=0A     }=0A   return __sys_res;=0A }=0A+=0A=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=0A--- libc-orig/sysde=
ps/unix/sysv/linux/posix_fadvise.c	2003-08-16 20:36:22.000000000 -0400=0A=
+++ libc/sysdeps/unix/sysv/linux/posix_fadvise.c	2004-09-26 22:45:33.0000=
00000 -0400=0A@@ -35,6 +35,19 @@=0A     return INTERNAL_SYSCALL_ERRNO (re=
t, err);=0A   return 0;=0A #else=0A+# ifdef __NR_fadvise64_64=0A+  INTERN=
AL_SYSCALL_DECL (err);  =0A+  int ret =3D INTERNAL_SYSCALL (fadvise64_64,=
 err, 6, fd,=0A+			      __LONG_LONG_PAIR ((long) (offset >> 31),=0A+				=
		(long) offset),=0A+			      __LONG_LONG_PAIR ((long) (len >> 31),=0A+		=
				(long) len),=0A+			      advise);=0A+  if (INTERNAL_SYSCALL_ERROR_P (=
ret, err))=0A+    return INTERNAL_SYSCALL_ERRNO (ret, err);=0A+  return 0=
;=0A+# else=0A   return ENOSYS;=0A+# endif=0A #endif=0A }=0A--- glibc-2.3=
.5.old/sysdeps/hppa/dl-lookupcfg.h	2005-05-15 20:36:10.383193082 -0600=0A=
+++ glibc-2.3.5/sysdeps/hppa/dl-lookupcfg.h	2005-05-15 21:44:07.543952666=
 -0600=0A@@ -67,3 +69,15 @@=0A #define DL_DT_FINI_ADDRESS(map, addr) \=0A=
   ((Elf32_Addr)(addr) & 2 ? (addr) : DL_AUTO_FUNCTION_ADDRESS (map, addr=
))=0A =0A+/* The type of the return value of fixup/profile_fixup */=0A+#d=
efine DL_FIXUP_VALUE_TYPE struct fdesc=0A+=0A+/* Construct a fixup value =
from the address and linkmap */=0A+#define DL_FIXUP_MAKE_VALUE(map, addr)=
 \=0A+   ((struct fdesc) { (addr), (map)->l_info[DT_PLTGOT]->d_un.d_ptr }=
)=0A+=0A+/* Extract the code address from a fixup value */=0A+#define DL_=
FIXUP_VALUE_CODE_ADDR(value) ((value).ip)=0A+#define DL_FIXUP_VALUE_ADDR(=
value) ((uintptr_t) &(value))=0A+#define DL_FIXUP_ADDR_VALUE(addr) (*(str=
uct fdesc *) (addr))=0A+=0A
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_______________________________________________
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http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] hppa glibc clone() patch proposal (2/3)
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Hello Mike, pa*,

This 2d step is just tab/whitespace adjustment (beautify ;-) )

--- glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S.orig1      2006-03-2=
4
09:58:17.000000000 +0100
+++ glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S    2006-03-24
10:09:12.000000000 +0100
@@ -47,78 +47,78 @@
 ENTRY(__clone)
 
        /* Save the fn ptr and arg on the new stack.  */
-       stwm    %r26,64(%r25)
-       stw     %r23,-60(%r25)
+       stwm            %arg0, 64(%arg1)
+       stw             %arg3, -60(%arg1)
        /* Clone arguments are (int flags, void * child_stack) */
-       copy    %r24,%r26       /* flags are first */
+       copy            %arg2, %arg0            /* flags are first */
        /* User stack pointer is in the correct register already */
 
        /* Load args from stack... */
-       ldw     -52(%sp), %r24  /* Load parent_tidptr */
-       ldw     -56(%sp), %r23  /* Load newtls */
-       ldw     -60(%sp), %r22  /* Load child_tidptr */
+       ldw             -52(%sp), %arg2         /* Load parent_tidptr */
+       ldw             -56(%sp), %arg3         /* Load newtls */
+       ldw             -60(%sp), %r22          /* Load child_tidptr */
 
        /* Create frame for function */
-       copy    %sp, %r21
-       stwm    %r3, 64(%sp)
-       stw     %r21, -4(%sp)
+       copy            %sp, %r21
+       stwm            %r3, 64(%sp)
+       stw             %r21, -4(%sp)
 
        /* Save the PIC register. */
 #ifdef PIC
-       copy    %r19, %r3               /* parent */
+       copy            %r19, %r3               /* parent */
 #endif
 
        /* Do the system call */
-       ble     0x100(%sr2,%r0)
-       ldi     __NR_clone,%r20
+       ble             0x100(%sr2, %r0)
+       ldi             __NR_clone, %r20
 
-       ldi     -4096,%r1
-       comclr,>>=3D %r1,%ret0,%r0        /* Note: unsigned compare. */
-       b,n     .Lerror
+       ldi             -4096, %r1
+       comclr,>>=3D      %r1, %ret0, %r0         /* Note: unsigned compa=
re. */
+       b,n             .Lerror
 
-       comib,=3D,n 0,%ret0,thread_start
+       comib,=3D,n       0, %ret0, thread_start
 
        /* Successful return from the parent
           No need to restore the PIC register, 
           since we return immediately. */
 
-       bv      %r0(%rp)
-       ldwm    -64(%sp), %r3
+       bv              %r0(%rp)
+       ldwm            -64(%sp), %r3
 
        /* Something bad happened -- no child created */
 .Lerror:
 
        /* Restore the PIC register on error */
 #ifdef PIC
-       copy    %r3, %r19               /* parent */ 
+       copy            %r3, %r19               /* parent */ 
 #endif
        /* Set errno */
-       copy    %ret0, %r3
-       b       __syscall_error
-       sub     %r0,%ret0,%arg0
-       copy    %r3, %ret0
+       copy            %ret0, %r3
+       b               __syscall_error
+       sub             %r0, %ret0, %arg0
+       copy            %r3, %ret0
        /* Return after setting errno */
-       bv      %r0(%rp)
-       ldwm    -64(%sp), %r3
+       bv              %r0(%rp)
+       ldwm            -64(%sp), %r3
 
 thread_start:
 
        /* Load up the arguments.  */
-       ldw     -60(%sr0, %sp),%arg0
-       ldw     -64(%sr0, %sp),%r22
+       ldw             -60(%sr0, %sp), %arg0
+       ldw             -64(%sr0, %sp), %r22
 
        /* $$dyncall fixes childs PIC register */
 
        /* Call the user's function */
-       bl      $$dyncall,%r31
-       copy    %r31,%rp
+       bl              $$dyncall, %r31
+       copy            %r31, %rp
 
-       bl      _exit,%rp
-       copy    %ret0,%arg0
+       bl              _exit, %rp
+       copy            %ret0, %arg0
 
        /* Die horribly.  */
-       iitlbp  %r0,(%sr0,%r0)
+       iitlbp          %r0, (%sr0, %r0)
 
 PSEUDO_END(__clone)
 
-weak_alias(__clone, clone)
+weak_alias (__clone, clone)
=3D=3D=3D=3D<>=3D=3D=3D=3D

(Ah yes also reuse older arg[123] notation)

Joel=0A=0A-------------------------------------------------------=0ANOTE!=
 My email address is changing to ... @scarlet.be=0APlease make the necess=
ary changes in your address book. =0A=0A
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From - Thu Nov 08 21:34:29 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] hppa glibc clone() patch proposal (3/3)
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To: "Kyle McMartin" <kyle@parisc-linux.org>,
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Xref: news.gmane.org gmane.linux.ports.parisc:23484

Hello Mike, pa*,

And this last step is my actual fix proposal:

--- glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S.orig2      2006-03-2=
4
10:11:27.000000000 +0100
+++ glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S    2006-03-24
10:13:12.000000000 +0100
@@ -45,6 +45,13 @@
 
         .text
 ENTRY(__clone)
+       /* this proto SAVE_RP: stw rp, -20(sp) */
+
+       /* Sanity check arguments.  */
+       comib,=3D         0, %arg0, .Larg_error   /* no NULL function poi=
nters */
+       ldi             -EINVAL, %ret0
+       comib,=3D         0, %arg1, .Larg_error   /* no NULL stack pointe=
rs */
+       nop
 
        /* Save the fn ptr and arg on the new stack.  */
        stwm            %arg0, 64(%arg1)
@@ -60,8 +67,8 @@
 
        /* Create frame for function */
        copy            %sp, %r21
+       stw             %r21, 60(%sp)
        stwm            %r3, 64(%sp)
-       stw             %r21, -4(%sp)
 
        /* Save the PIC register. */
 #ifdef PIC
@@ -94,13 +101,35 @@
 #endif
        /* Set errno */
        copy            %ret0, %r3
-       b               __syscall_error
+       bl              __syscall_error, %rp
        sub             %r0, %ret0, %arg0
        copy            %r3, %ret0
        /* Return after setting errno */
+       /* Restore rp from ENTRY() */
+       ldw             -84(%sp), %rp
        bv              %r0(%rp)
        ldwm            -64(%sp), %r3
 
+.Larg_error:
+
+       /* Save arg0: the fn ptr.  */
+       stw             %arg0, -36(%sp)
+       /* Save the PIC register? */
+       stwm            %r3, 64(%sp)
+
+       /* Set errno */
+       copy            %ret0, %r3
+       bl              __syscall_error, %rp
+       sub             %r0, %ret0, %arg0
+
+       /* Restore arg0: the fn ptr.  */
+       ldw             -100(%sp), %arg0
+       /* Return after setting errno */
+       /* Restore rp from ENTRY() */
+       ldw             -84(%sp), %rp
+       bv              %r0(%rp)
+       ldwm            -64(%sp), %r3
+
 thread_start:
 
        /* Load up the arguments.  */
=3D=3D=3D=3D<>=3D=3D=3D=3D

Description:
    1/ first hunk resurect the 'arg sanity check'
    2/ 2d is just of my taste ;-)
    3/ branching change was suggested to me by subsequent code added by C=
.
    4/ I did find yet a elegant way to merge the 2 .Lerror_ hunk

That said that bring me more questions then answer:
    1/ what's the role of this mistery r3? (comment in last hunk)
    2/ can I get rid of save/redtore of arg0?

Thanks for your attention,
    Joel

PS1: clone04 test on a chroot disk works fine:
# ./clone04
clone04     1  PASS  :  expected failure; Got EINVAL

PS2: already build 6 time kernel in a loop with 2.6.16-pa4 64bit on a b2k=


PS3: no regression versus debian stock pkg 2.3.6-4 :-)
 grep Err Glibc-2.6.3-4.builld.debian.org.txt
make[3]: ***
[/build/buildd/glibc-2.3.6/build-tree/hppa-libc/localedata/sort-test.out]=
 Error 1
make[2]: *** [localedata/tests] Error 2
make[3]: ***
[/build/buildd/glibc-2.3.6/build-tree/hppa-libc/math/test-float.out] Erro=
r 1
make[3]: ***
[/build/buildd/glibc-2.3.6/build-tree/hppa-libc/math/test-double.out] Err=
or 1
make[3]: ***
[/build/buildd/glibc-2.3.6/build-tree/hppa-libc/math/test-idouble.out] Er=
ror 1
make[2]: *** [math/tests] Error 2
make[3]: [/build/buildd/glibc-2.3.6/build-tree/hppa-libc/posix/annexc.out=
]
Error 1 (ignored)
make[3]: ***
[/build/buildd/glibc-2.3.6/build-tree/hppa-libc/posix/tst-rxspencer.out] =
Error 139
make[2]: *** [posix/tests] Error 2
make[3]: ***
[/build/buildd/glibc-2.3.6/build-tree/hppa-libc/linuxthreads/tst-attr1.ou=
t]
Error 1
make[2]: *** [linuxthreads/tests] Error 2
make[3]: ***
[/build/buildd/glibc-2.3.6/build-tree/hppa-libc/elf/tst-tls13.out] Error =
1
make[2]: *** [elf/tests] Error 2
make[1]: *** [check] Error 2

My build:
# tail -f glibc-2.3.6-4.1 | grep Err

make[3]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/locale=
data/sort-test.out]
Error 1
make[2]: *** [localedata/tests] Error 2
make[3]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/t=
est-float.out]
Error 1
make[3]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/t=
est-double.out]
Error 1
make[3]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/t=
est-idouble.out]
Error 1
make[2]: *** [math/tests] Error 2
make[3]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/=
tst-rxspencer.out]
Error 139
make[3]:
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/=
annexc.out]
Error 1 (ignored)
make[2]: *** [posix/tests] Error 2
make[3]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/linuxt=
hreads/tst-attr1.out]
Error 1
make[2]: *** [linuxthreads/tests] Error 2
make[3]: ***
[/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/elf/ts=
t-tls13.out]
Error 1
make[2]: *** [elf/tests] Error 2
make[1]: *** [check] Error 2
=0A=0A-------------------------------------------------------=0ANOTE! My =
email address is changing to ... @scarlet.be=0APlease make the necessary =
changes in your address book. =0A=0A

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Xref: news.gmane.org gmane.linux.ports.parisc:23485

On Fri, Mar 24, 2006 at 11:18:25AM +0100, Joel Soete wrote:
> Hello Mike, pa*,
> 
> And this last step is my actual fix proposal:
...
>  ENTRY(__clone)
> +       /* Sanity check arguments.  */
> +       comib,=         0, %arg0, .Larg_error   /* no NULL function pointers */
> +       ldi             -EINVAL, %ret0
> +       comib,=         0, %arg1, .Larg_error   /* no NULL stack pointers */
> +       nop

If this is correct, then I would prefer:

	/* catch NULL stack or function ptrs */
	xor		%arg1, %arg0, %ret0
	comib,=,n	0, %ret0, .Larg_error
	ldi             -EINVAL, %ret0


> 
>         /* Save the fn ptr and arg on the new stack.  */
>         stwm            %arg0, 64(%arg1)
> @@ -60,8 +67,8 @@
> 
>         /* Create frame for function */
>         copy            %sp, %r21
> +       stw             %r21, 60(%sp)

Is %r21 used later again?
If not, then these two ops can become:
	stw            %sp, 60(%sp)

If yes, then add the copy() *after* the stw.
PA-RISC can only do one store at a time.
PA20 can do the copy in parallel with the store.

hth,
grant
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Xref: news.gmane.org gmane.linux.ports.parisc:23486

Hello Joel,

thank you for the patch.
I just looked how it is fixed currently in Linus' (>2.6.16) tree, and there this was added to include/linux/compat.h.
Since I don't think we will push the changes you propose to 2.6.16 in the file compat_siginfo.h upstream (since it has been fixed differently), I think it's easier to just stick with this small warning at the moment.
If others here think differently just go ahead...

Regards,
Helge

On Friday 24 March 2006 15:41, Joel Soete wrote:
> Hi pa*,
> 
> those 2 warning crossed my look during the build of n4k (64bit) smp kernel (in
> a loop to stress it a bit):
>   CC      kernel/compat.o
> /usr/src/linux-2.6.16-pa4/kernel/compat.c: In function 'compat_sys_timer_create':
> /usr/src/linux-2.6.16-pa4/kernel/compat.c:531: warning: implicit declaration
> of function 'get_compat_sigevent'
> [...]
>   CC      ipc/compat_mq.o
> /usr/src/linux-2.6.16-pa4/ipc/compat_mq.c: In function 'compat_sys_mq_notify':
> /usr/src/linux-2.6.16-pa4/ipc/compat_mq.c:113: warning: implicit declaration
> of function 'get_compat_sigevent'
> [...]
> 
> imho this simple hunk could be helpfull:
> --- ./include/linux/compat_siginfo.h.Orig       2006-03-24 14:04:10.000000000
> +0100
> +++ ./include/linux/compat_siginfo.h    2006-03-24 14:24:49.000000000 +0100
> @@ -171,6 +171,9 @@
>  
>  #endif /* !HAVE_ARCH_COMPAT_COPY_SIGINFO */
>  
> +extern int get_compat_sigevent(struct sigevent *event,
> +                       const struct compat_sigevent __user *u_event);
> +
>  extern int compat_copy_siginfo_to_user(compat_siginfo_t __user *to, struct
> siginfo *from);
>  extern int compat_copy_siginfo_from_user(struct siginfo *to, compat_siginfo_t
> __user *from);
>  
> ====<>====
> 
> If Ok can you ci?
> 
> TIA,
>     Joel
> 
> -------------------------------------------------------
> NOTE! My email address is changing to ... @scarlet.be
> Please make the necessary changes in your address book. 
> 
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] a small hunk to cleanup 2 build warning?
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On Fri, Mar 24, 2006 at 05:58:27PM +0100, Helge Deller wrote:
> Since I don't think we will push the changes you propose to 2.6.16 in
> the file compat_siginfo.h upstream (since it has been fixed differently),
> I think it's easier to just stick with this small warning at the moment.
> If others here think differently just go ahead...

I agree. If it's already fixed upstream, I can live with the warning for now.

thanks,
grant



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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] a small hunk to cleanup 2 build warning?
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To: "grundler" <grundler@parisc-linux.org>
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> On Fri, Mar 24, 2006 at 05:58:27PM +0100, Helge Deller wrote:
> > Since I don't think we will push the changes you propose to 2.6.16 in=

> > the file compat_siginfo.h upstream (since it has been fixed different=
ly),
Ah interesting, I try it first in compat.h but complaining about 'struct
compat_sigevent' not define, that will may be learn me more about C ;-)
 
> > I think it's easier to just stick with this small warning at the mome=
nt.
> > If others here think differently just go ahead...
> 
> I agree. If it's already fixed upstream, I can live with the warning fo=
r now.
> 
Oh yes, just a suggestion in case that gcc could confuse stuff and may be=

related to 'Bug' encountered recently. 

Tx a lot for feedback,
    Joel=0A=0A-------------------------------------------------------=0AN=
OTE! My email address is changing to ... @scarlet.be=0APlease make the ne=
cessary changes in your address book. =0A=0A



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Subject: [parisc-linux] Fwd: hppa glibc clone() patch proposal (3/3)
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>         /* Create frame for function */
>         copy            %sp, %r21
> +       stw             %r21, 60(%sp)
>         stwm            %r3, 64(%sp)
> -       stw             %r21, -4(%sp)

Bug.

c.
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From: dann frazier <dannf@hp.com>
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Subject: [parisc-linux] palinux outage this weekend
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Xref: news.gmane.org gmane.linux.ports.parisc:23490

We were told yesterday that power to the room that holds
palinux.external.hp.com (aka parisc-linux.org) will be interrupted
from 6:00a->2:00p MST (13:00->21:00 UTC).  I have started a shutdown
process on palinux which will halt the box at 5:30a (12:30 UTC).

Ryan Fuerst will be in to power the box back up after the power has
returned.  Sorry for the inconvenience/late notice.

-- 
dann frazier | HP Open Source and Linux Lab
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> But I did booted yesterday the latest CVS 32bit Kernel on my c3k and it worked fine, so I assume you shouldn't see any problems either...

I tried the default 2.6.16-pa5 from www.parisc-linux.org this afternoon.
I still get a lot of ip_tables messages on the console which unfortunately
aren't captured in any log file.  I've attached the diff between 2.6.15-rc7-pa
and 2.6.16-pa5 dmesg files.  Is the eth0 difference significant?  There's
also a segv in dirmngr that occurs late in both boots.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

--- dmesg	2006-03-25 18:14:38.000000000 -0500
+++ dmesg.0	2006-03-25 18:06:12.000000000 -0500
@@ -1,4 +1,4 @@
-Linux version 2.6.15-rc7-pa1 (bame@palinux) (gcc version 3.3.5 (Debian 1:3.3.5-13)) #1 Mon Jan 2 15:10:49 MST 2006
+Linux version 2.6.16-pa5 (bame@palinux) (gcc version 3.3.5 (Debian 1:3.3.5-13)) #1 Thu Mar 23 20:32:12 MST 2006
 FP[0] enabled: Rev 1 Model 19
 The 32-bit Kernel has started...
 Initialized PDC Console for debugging.
@@ -16,7 +16,7 @@
   HighMem zone: 0 pages, LIFO batch:0
 LCD display at f05d0008,f05d0000 registered
 Built 1 zonelists
-Kernel command line: HOME=/ TERM=linux root=/dev/sdb3 console=tty0 sti=10/4/3/0 sti_font=VGA8x16 panic=180 palo_kernel=3/boot/vmlinux
+Kernel command line: HOME=/ TERM=linux root=/dev/sdb3 console=tty0 sti=10/4/3/0 sti_font=VGA8x16 panic=180 palo_kernel=3/boot/vmlinux-2.6.16-pa5-c3000_defconfig
 PID hash table entries: 4096 (order: 12, 65536 bytes)
 Console: colour dummy device 160x64
 Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
@@ -35,8 +35,8 @@
 6. Allegro W2 at 0xfffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
 7. Memory at 0xfed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
 CPU(s): 1 x PA8700 (PCX-W2) at 875.000000 MHz
-Whole cache flush 1029084 cycles, flushing 4478280 bytes 1046986 cycles
-Setting cache flush threshold to 40 (1 CPUs online)
+Whole cache flush 1257772 cycles, flushing 4495684 bytes 1053408 cycles
+Setting cache flush threshold to 900 (1 CPUs online)
 SBA found Astro 2.1 at 0xfed00000
 LBA version TR4.0 (0x5) found at 0xfed30000
 PCI: Enabled native mode for NS87415 (pif=0x8f)
@@ -48,11 +48,11 @@
 SCSI subsystem initialized
 usbcore: registered new driver usbfs
 usbcore: registered new driver hub
-unwind_init: start = 0x104064d0, end = 0x10434c00, entries = 11891
+unwind_init: start = 0x1040a400, end = 0x10439f10, entries = 12209
 Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
 Initializing Cryptographic API
 io scheduler noop registered
-io scheduler anticipatory registered
+io scheduler anticipatory registered (default)
 io scheduler deadline registered
 io scheduler cfq registered
 SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 19) 
@@ -62,7 +62,7 @@
 SuperIO: Floppy controller at 0x3f0
 SuperIO: ACPI at 0x7e0
 SuperIO: USB regulator enabled
-PDC Stable Storage facility v0.10
+PDC Stable Storage facility v0.22
 Soft power switch enabled, polling @ 0xf0400804.
 STI GSC/PCI core graphics driver Version 0.9a
 STI PCI graphic ROM found at f6000000 (64 kB), fb at f8000000 (32 MB)
@@ -77,21 +77,21 @@
 fb0: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIX1280, id: 2d08c0a7, mmio: 0xf8100000
 stifb: 'A1262A' (id: 0x35acda30) not supported.
 Generic RTC Driver v1.07
-Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
+Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
 serial8250: ttyS0 at I/O 0x3f8 (irq = 3) is a 16550A
 serial8250: ttyS1 at I/O 0x2f8 (irq = 4) is a 16550A
 loop: loaded (max 8 devices)
 Linux Tulip driver version 1.1.13 (December 15, 2004)
 tulip0: no phy info, aborting mtable build
 tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
-eth0: Digital DS21142/DS21143 Tulip rev 65 at f4008000, 00:30:6E:48:AC:EA, IRQ 17.
+eth0: Digital DS21142/DS21143 Tulip rev 65 at 0001e000, 00:30:6E:48:AC:EA, IRQ 17.
 tulip1:  EEPROM default media type Autosense.
 tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
 tulip1:  Index #1 - Media 10base2 (#1) described by a 21142 Serial PHY (2) block.
 tulip1:  Index #2 - Media AUI (#2) described by a 21142 Serial PHY (2) block.
 tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.
 tulip1:  Advertising 01e1 on PHY 1, previously advertising 0101.
-eth1: Digital DS21142/DS21143 Tulip rev 33 at f4800000, 00:60:B0:7A:02:FD, IRQ 21.
+eth1: Digital DS21142/DS21143 Tulip rev 33 at 00032000, 00:60:B0:7A:02:FD, IRQ 21.
 Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
 NS87415: IDE controller at PCI slot 0000:00:0e.0
@@ -117,8 +117,8 @@
   Type:   Direct-Access                      ANSI SCSI revision: 03
  target1:0:5: tagged command queuing enabled, command queue depth 16.
  target1:0:5: Beginning Domain Validation
- target1:0:5: asynchronous.
- target1:0:5: wide asynchronous.
+ target1:0:5: asynchronous
+ target1:0:5: wide asynchronous
  target1:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
  target1:0:5: Domain Validation skipping write tests
  target1:0:5: Ending Domain Validation
@@ -126,22 +126,30 @@
   Type:   Direct-Access                      ANSI SCSI revision: 02
  target1:0:6: tagged command queuing enabled, command queue depth 16.
  target1:0:6: Beginning Domain Validation
- target1:0:6: asynchronous.
- target1:0:6: wide asynchronous.
+ target1:0:6: asynchronous
+ target1:0:6: wide asynchronous
  target1:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
  target1:0:6: Domain Validation skipping write tests
  target1:0:6: Ending Domain Validation
 st: Version 20050830, fixed bufsize 32768, s/g segs 256
 SCSI device sda: 71132960 512-byte hdwr sectors (36420 MB)
-SCSI device sda: drive cache: write through
+sda: Write Protect is off
+sda: Mode Sense: d3 00 10 08
+SCSI device sda: drive cache: write through w/ FUA
 SCSI device sda: 71132960 512-byte hdwr sectors (36420 MB)
-SCSI device sda: drive cache: write through
+sda: Write Protect is off
+sda: Mode Sense: d3 00 10 08
+SCSI device sda: drive cache: write through w/ FUA
  sda: sda1 sda2 sda3 sda4 < sda5 sda6 >
 sd 1:0:5:0: Attached scsi disk sda
 SCSI device sdb: 143374738 512-byte hdwr sectors (73408 MB)
-SCSI device sdb: drive cache: write through
+sdb: Write Protect is off
+sdb: Mode Sense: a3 00 10 08
+SCSI device sdb: drive cache: write through w/ FUA
 SCSI device sdb: 143374738 512-byte hdwr sectors (73408 MB)
-SCSI device sdb: drive cache: write through
+sdb: Write Protect is off
+sdb: Mode Sense: a3 00 10 08
+SCSI device sdb: drive cache: write through w/ FUA
  sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 sdb6 >
 sd 1:0:6:0: Attached scsi disk sdb
 sd 1:0:5:0: Attached scsi generic sg0 type 0
@@ -172,11 +180,13 @@
 usb usb1: default language 0x0409
 usb usb1: new device strings: Mfr=3, Product=2, SerialNumber=1
 usb usb1: Product: OHCI Host Controller
-usb usb1: Manufacturer: Linux 2.6.15-rc7-pa1 ohci_hcd
+usb usb1: Manufacturer: Linux 2.6.16-pa5 ohci_hcd
 usb usb1: SerialNumber: 0000:00:0e.2
-usb usb1: hotplug
+usb usb1: uevent
+usb usb1: device is self-powered
+usb usb1: configuration #1 chosen from 1 choice
 usb usb1: adding 1-0:1.0 (config #1, interface 0)
-usb 1-0:1.0: hotplug
+usb 1-0:1.0: uevent
 hub 1-0:1.0: usb_probe_interface
 hub 1-0:1.0: usb_probe_interface - got id
 hub 1-0:1.0: USB hub found
@@ -187,7 +197,7 @@
 hub 1-0:1.0: power on to power good time: 0ms
 hub 1-0:1.0: local power source is good
 hub 1-0:1.0: enabling power on all ports
-hub 1-0:1.0: state 5 ports 3 chg 0000 evt 0000
+hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0000
 drivers/usb/core/inode.c: creating file '001'
 ohci_hcd 0000:00:0e.2: GetStatus roothub.portstatus [0] = 0x00010301 CSC LSDA PPS CCS
 hub 1-0:1.0: port 1, status 0301, change 0001, 1.5 Mb/s
@@ -201,11 +211,13 @@
 usb 1-1: new device strings: Mfr=1, Product=2, SerialNumber=0
 usb 1-1: Product: USB Keyboard and Mouse
 usb 1-1: Manufacturer: SILITEK
-usb 1-1: hotplug
+usb 1-1: uevent
+usb 1-1: device is bus-powered
+usb 1-1: configuration #1 chosen from 1 choice
 usb 1-1: adding 1-1:1.0 (config #1, interface 0)
-usb 1-1:1.0: hotplug
+usb 1-1:1.0: uevent
 usb 1-1: adding 1-1:1.1 (config #1, interface 1)
-usb 1-1:1.1: hotplug
+usb 1-1:1.1: uevent
 drivers/usb/core/inode.c: creating file '002'
 ohci_hcd 0000:00:0e.2: GetStatus roothub.portstatus [1] = 0x00010301 CSC LSDA PPS CCS
 hub 1-0:1.0: port 2, status 0301, change 0001, 1.5 Mb/s
@@ -218,11 +230,13 @@
 usb 1-2: new device strings: Mfr=1, Product=2, SerialNumber=0
 usb 1-2: Product: N48
 usb 1-2: Manufacturer: Logitech
-usb 1-2: hotplug
+usb 1-2: uevent
+usb 1-2: device is bus-powered
+usb 1-2: configuration #1 chosen from 1 choice
 usb 1-2: adding 1-2:1.0 (config #1, interface 0)
-usb 1-2:1.0: hotplug
+usb 1-2:1.0: uevent
 drivers/usb/core/inode.c: creating file '003'
-hub 1-0:1.0: state 5 ports 3 chg 0000 evt 0004
+hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0004
 usbcore: registered new driver hiddev
 usbhid 1-1:1.0: usb_probe_interface
 usbhid 1-1:1.0: usb_probe_interface - got id
@@ -239,12 +253,12 @@
 usbcore: registered new driver usbhid
 drivers/usb/input/hid-core.c: v2.6:USB HID core driver
 mice: PS/2 mouse device common for all mice
-md: linear personality registered as nr 1
-md: raid0 personality registered as nr 2
-md: raid1 personality registered as nr 3
+md: linear personality registered for level -1
+md: raid0 personality registered for level 0
+md: raid1 personality registered for level 1
 md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
 md: bitmap version 4.39
-Advanced Linux Sound Architecture Driver Version 1.0.10rc3 (Mon Nov 07 13:30:21 2005 UTC).
+Advanced Linux Sound Architecture Driver Version 1.0.11rc2 (Wed Jan 04 08:57:20 2006 UTC).
 ALSA device list:
   #0: Analog Devices AD1889 at 0xf400c000 irq 18
 NET: Registered protocol family 2
@@ -263,17 +277,17 @@
 EXT3-fs: mounted filesystem with ordered data mode.
 VFS: Mounted root (ext3 filesystem) readonly.
 Freeing unused kernel memory: 236k freed
-usb 1-0:1.0: hotplug
-usb 1-1: hotplug
-usb 1-1:1.0: hotplug
-usb 1-1:1.1: hotplug
-usb 1-2: hotplug
-usb 1-2:1.0: hotplug
-usb usb1: hotplug
+usb 1-0:1.0: uevent
+usb 1-1: uevent
+usb 1-1:1.0: uevent
+usb 1-1:1.1: uevent
+usb 1-2: uevent
+usb 1-2:1.0: uevent
+usb usb1: uevent
 Adding 265032k swap on /dev/sdb1.  Priority:-1 extents:1 across:265032k
 Adding 263144k swap on /dev/sda1.  Priority:-2 extents:1 across:263144k
 EXT3 FS on sdb3, internal journal
-ip_conntrack version 2.4 (8192 buckets, 65536 max) - 212 bytes per conntrack
+ip_conntrack version 2.4 (8192 buckets, 65536 max) - 172 bytes per conntrack
 kjournald starting.  Commit interval 5 seconds
 EXT3 FS on sdb5, internal journal
 EXT3-fs: mounted filesystem with ordered data mode.
@@ -289,4 +303,3 @@
 kjournald starting.  Commit interval 5 seconds
 EXT3 FS on sda6, internal journal
 EXT3-fs: mounted filesystem with ordered data mode.
-ip_tables: (C) 2000-2002 Netfilter core team



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> Regarding the segfault, I can't help you there ... although I have seen many
> applications not longer working on my Debian/testing system lately
> (segfault, 'unresolvable relocation error 0x42' most of the time).

This should be fixed in libc6 2.3.6-3 which has support for the above
relocation.  If it's still occurring, there needs to be a new bug report.
In the situations that I've seen the relocations are coming from
/usr/lib/Scrt1.o when pie code is being used.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Mar 25, 2006 at 08:45:58PM -0500, John David Anglin wrote:
> > But I did booted yesterday the latest CVS 32bit Kernel on my c3k and it worked fine, so I assume you shouldn't see any problems either...
> 
> I tried the default 2.6.16-pa5 from www.parisc-linux.org this afternoon.
> I still get a lot of ip_tables messages on the console which unfortunately
> aren't captured in any log file.

I haven't paid attn to iptables changes but I probably should.
In any case, that will "only" affect things like NAT or firewall.

>   I've attached the diff between 2.6.15-rc7-pa
> and 2.6.16-pa5 dmesg files.  Is the eth0 difference significant?

Yes. One is using MMIO and the other is using IO port space.
c3000defconfig could use MMIO too. I keep forgetting if
the "GSC" Tulips (via card-mode Dino) now reliably can
use MMIO too.

grant



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Grant Grundler wrote:
> On Sat, Mar 25, 2006 at 08:45:58PM -0500, John David Anglin wrote:
> 
[...]
> I keep forgetting if
> the "GSC" Tulips (via card-mode Dino) now reliably can
> use MMIO too.
> 
Btw, I have such additional gsc nic on my d380: which driver should I select?

Tia,
	Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:23496

On Sunday 26 March 2006 06:05, John David Anglin wrote:
> > Regarding the segfault, I can't help you there ... although I have seen many
> > applications not longer working on my Debian/testing system lately
> > (segfault, 'unresolvable relocation error 0x42' most of the time).
> 
> This should be fixed in libc6 2.3.6-3 which has support for the above
> relocation.  If it's still occurring, there needs to be a new bug report.
> In the situations that I've seen the relocations are coming from
> /usr/lib/Scrt1.o when pie code is being used.

Hi Dave,

I'm running libc6-2.3.6-4 and see some strange crashes. Might it be related, or does  2.3.6-4 doesn't includes your fix ?

Regards,
Helge

root@c3000:~# dpkg -l | grep libc
ii  libc6                       2.3.6-4                        GNU C Library: Shared libraries and Timezone data
ii  libc6-dev                   2.3.6-4                        GNU C Library: Development Libraries and Header Files
ii  libc6-pic                   2.3.6-4                        GNU C Library: PIC archive library

dbus-0.61-5.deb
nscd-2.3.6-4.deb

do_page_fault() pid=1854 command='dbus-daemon' type=15 address=0x41493520
vm_start = 0x4095d000, vm_end = 0x4095f000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111110100001111 Not tainted
r00-03  00000000 0062c6c3 409148df 40493818
r04-07  4095b714 404933b8 00000005 40493000
r08-11  0000000f 0007a960 00000005 fb556648
r12-15  fb55664c 4095c714 4095c714 fb55674c
r16-19  4095ed9c 00000001 00000000 4095b714
r20-23  01000168 00000000 000196a8 0007a960
r24-27  00000005 000000d3 a2d3a6be 00070eec
r28-31  00000000 404931e4 fb556880 409148f3
sr0-3   00000000 00000000 00000000 00001765
sr4-7   00001765 00001765 00001765 00001765

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  11bb69e08f41d7fc 000000001017b2f8 1051e2201051e220 11ba1b0810436960
fr08-11  0000000300000000 11bb69e00098963a 0000000000000002 11ba1b0810436960
fr12-15  0007a8a810517010 0000000010125938 0007a8c81054d6a0 0000000000030000
fr16-19  0000000b1051e810 11ba409c11ba4148 1051e220103af867 00002000103d15a0
fr20-23  11b9400000000000 0000000010166ef8 0000000000000000 0000000010514010
fr24-27  0000000110436810 10125a9800000000 232aaf8049c5f780 0098963a11b94000
fr28-31  ffffff9c11ba1b08 11ba414810167050 000000001051e010 00000000f0400004

IASQ: 00001765 00001765 IAOQ: 40914917 4091491b
 IIR: 0e85001c    ISR: 00001765  IOR: 41493520
 CPU:        0   CR30: 8eb90000 CR31: 104bc000
 ORIG_R28: 00000000
 IAOQ[0]: 0x40914917
 IAOQ[1]: 0x4091491b
 RP(r2): 0x409148df


do_page_fault() pid=1830 command='nscd' type=15 address=0x41493534
vm_start = 0x41425000, vm_end = 0x41428000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 410d0fdc 410b80cf 404c8c80
r04-07  410d0ca0 00000000 4426c56b 404937e8
r08-11  41493520 00000079 404933b8 00000079
r12-15  404c8e89 000000d3 000000d2 410d0df0
r16-19  4426c56b 00000059 410d0fdc 410d0ca0
r20-23  00000000 01000168 00000000 00000008
r24-27  404c8cb8 404c8e48 404c8cb8 410d0ca0
r28-31  00000001 00000803 404c8f40 00000000
sr0-3   00001701 00000000 00000000 00001701
sr4-7   00001701 00001701 00001701 00001701

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  11bb69e08f41d7fc 000000001017b2f8 1051e2201051e220 11ba1b0810436960
fr08-11  0000000300000000 11bb69e00098963a 0000000000000002 11ba1b0810436960
fr12-15  0000100010517010 404c8e4010125938 402ac4b41054d6a0 0000000000030000
fr16-19  0000000b1051e810 11ba409c11ba4148 1051e220103af867 00002000103d15a0
fr20-23  11b9400000000000 0000000010166ef8 40095a2bcccccccd 404c8cb810514010
fr24-27  0000000a10436810 10125a9800000000 232aaf8049c5f780 0098963a11b94000
fr28-31  ffffff9c11ba1b08 11ba414810167050 000000001051e010 00000000f0400004

IASQ: 00001701 00001701 IAOQ: 410b7f43 410b7f47
 IIR: 491c0028    ISR: 00001701  IOR: 41493534
 CPU:        0   CR30: 8e9cc000 CR31: 104bc000
 ORIG_R28: 00000001
 IAOQ[0]: 0x410b7f43
 IAOQ[1]: 0x410b7f47
 RP(r2): 0x410b80cf
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Carlos O'Donell wrote:
>>PS: when I will revert this hunk, do you think reasonable that I send the patch to Aurelien to insert it in debian pkg?
> 
> 
> No, post again for review. The whole patch please.
> 
No pb here it is:
--- glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S.orig2      2006-03-24 09:11:27.000000000 +0000
+++ glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S    2006-03-26 10:20:13.000000000 +0000
@@ -45,6 +45,14 @@

          .text
  ENTRY(__clone)
+    /* this proto do: stw rp, -20(sp) */
+       /* FIXME: I have no idea how profiling works on hppa. */
+
+       /* Sanity check arguments.  */
+       comib,=         0, %arg0, .Larg_error   /* no NULL function pointers */
+       ldi             -EINVAL, %ret0
+       comib,=         0, %arg1, .Larg_error   /* no NULL stack pointers */
+       nop

         /* Save the fn ptr and arg on the new stack.  */
         stwm            %arg0, 64(%arg1)
@@ -94,13 +102,35 @@
  #endif
         /* Set errno */
         copy            %ret0, %r3
-       b               __syscall_error
+       bl              __syscall_error, %rp
         sub             %r0, %ret0, %arg0
         copy            %r3, %ret0
         /* Return after setting errno */
+       /* Restore rp from ENTRY() */
+       ldw             -84(%sp), %rp
         bv              %r0(%rp)
         ldwm            -64(%sp), %r3

+.Larg_error:
+
+       /* Save arg0: the fn ptr.  */
+       stw             %arg0, -36(%sp)
+       /* Save the PIC register? */
+       stwm            %r3, 64(%sp)
+
+       /* Set errno */
+       copy            %ret0, %r3
+       bl              __syscall_error, %rp
+       sub             %r0, %ret0, %arg0
+
+       /* Restore arg0: the fn ptr.  */
+       ldw             -100(%sp), %arg0
+       /* Return after setting errno */
+       /* Restore rp from ENTRY() */
+       ldw             -84(%sp), %rp
+       bv              %r0(%rp)
+       ldwm            -64(%sp), %r3
+
  thread_start:

         /* Load up the arguments.  */
===<>====

clone04 still works fine ;-)

mmm still have many questions (for so few insn):
     1/ what's the role of this mistery r3? (see comment)

     2/ is it the right palce to save 'stw %arg0, -36(%sp)' (I grab it from some other of your src)?

     3/ though, may be finaly better 'stw %arg0, -100(%sp)' after 'stwm %r3, 64(%sp)'?

     3/ can I get rid of save/restore of arg0?


Thanks again for your attention,
     Joel


PS: I still got the same 'Error' as buildd:
   # tail -f glibc-2.3.6-4.2 | grep Err
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/localedata/sort-test.out] Error 1
make[2]: *** [localedata/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-float.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-double.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-idouble.out] Error 1
make[2]: *** [math/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/tst-rxspencer.out] Error 139
make[3]: [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/annexc.out] Error 1 (ignored)
make[2]: *** [posix/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/linuxthreads/tst-attr1.out] Error 1
make[2]: *** [linuxthreads/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-timer.out] Error 137
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-aio4.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-timer4.out] Error 1
make[2]: *** [rt/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/elf/tst-tls13.out] Error 1
make[2]: *** [elf/tests] Error 2
make[1]: *** [check] Error 2

So it doesn't seems to introduce regressions?

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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes) and more
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Cc: parisc-linux@lists.parisc-linux.org,
 John David Anglin <dave@hiauly1.hia.nrc.ca>,
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Hello Matthias,

Helge Deller wrote:
> On Sunday 26 March 2006 06:05, John David Anglin wrote:
> 
>>>Regarding the segfault, I can't help you there ... although I have seen many
>>>applications not longer working on my Debian/testing system lately
>>>(segfault, 'unresolvable relocation error 0x42' most of the time).
>>
>>This should be fixed in libc6 2.3.6-3 which has support for the above
>>relocation.  If it's still occurring, there needs to be a new bug report.
>>In the situations that I've seen the relocations are coming from
>>/usr/lib/Scrt1.o when pie code is being used.
> 
> 
> Hi Dave,
> 
> I'm running libc6-2.3.6-4 and see some strange crashes. Might it be related, or does  2.3.6-4 doesn't includes your fix ?
> 
Do you know in which gcc-4.0 dpkg release the jda patch 
(<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-March/028548.html>) was in?
I can so check in buildd with which compiler this new glibc-2.3.6-4 was build ;-)

TIA,
	Joel



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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes) and more
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> > I'm running libc6-2.3.6-4 and see some strange crashes. Might it be related, or does  2.3.6-4 doesn't includes your fix ?

2.3.6-4 should have the glibc fix...

> Do you know in which gcc-4.0 dpkg release the jda patch 
> (<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-March/028548.html>) was in?
> I can so check in buildd with which compiler this new glibc-2.3.6-4 was build ;-)

As far as GCC goes, the fix is now in all 4.x branches but not in 3.4.
I'm not sure about the debian status.  I believe that Matthias integrated
the change but there was a regression due to a missing glibc patch
needed to prevent a SIGSEGV in the unwind code.  Matthias said this
problem was fixed on March 20.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes) and more
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> I'm not sure about the debian status.  I believe that Matthias integrated
> the change but there was a regression due to a missing glibc patch
> needed to prevent a SIGSEGV in the unwind code.  Matthias said this
> problem was fixed on March 20.

2.3.6-3 does't have the fix:

dave@hiauly6:~$ objdump -d /lib/libpthread.so.0
/lib/libpthread.so.0:     file format elf32-hppa-linux

Disassembly of section .init:

000041ac <_init>:
    41ac:       6b c2 3f d9     stw rp,-14(sp)
    41b0:       6f c4 00 80     stw,ma r4,40(sp)
    41b4:       6b d3 3f c1     stw r19,-20(sp)
    41b8:       e8 42 02 a0     b,l 8310 <__pthread_initialize_minimal>,rp
    41bc:       08 13 02 44     copy r19,r4
    41c0:       08 04 02 53     copy r4,r19
    41c4:       e8 40 0c 70     b,l 4804 <frame_dummy>,rp
    41c8:       08 00 02 40     nop
    41cc:       e8 44 1d 2c     b,l e068 <__do_global_ctors_aux>,rp
    41d0:       08 00 02 40     nop
    41d4:       4b c2 3f 59     ldw -54(sp),rp
    41d8:       08 04 02 53     copy r4,r19
    41dc:       e8 40 c0 00     bv r0(rp)

000041e0 <_end_init>:
    41e0:       4f c4 3f 81     ldw,mb -40(sp),r4

This .init section isn't built correctly in shared libraries.  The
PIC register r19 needs to be retored after every call if it is
subsequently used.  As can be seen above, there is no restore after
the call to frame_dummy and r19 is needed for the call to
__do_global_ctors_aux.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes) and more
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> I'm running libc6-2.3.6-4 and see some strange crashes. Might it be related, or does  2.3.6-4 doesn't includes your fix ?

Don't know.  Note the r19 bug and the dynamic loader relocation bug
are completely different bugs.  It's easy to see the r19 bug by looking
at the .init section of shared libraries as shown in my previous
message.  A backtrace would also help to see where the SEGV is
occuring.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes) and more
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> > I'm not sure about the debian status.  I believe that Matthias integr=
ated
> > the change but there was a regression due to a missing glibc patch
> > needed to prevent a SIGSEGV in the unwind code.  Matthias said this
> > problem was fixed on March 20.
> 
> 2.3.6-3 does't have the fix:
> 
> dave@hiauly6:~$ objdump -d /lib/libpthread.so.0
> /lib/libpthread.so.0:     file format elf32-hppa-linux
> 
> Disassembly of section .init:
> 
> 000041ac <_init>:
>     41ac:       6b c2 3f d9     stw rp,-14(sp)
>     41b0:       6f c4 00 80     stw,ma r4,40(sp)
>     41b4:       6b d3 3f c1     stw r19,-20(sp)
>     41b8:       e8 42 02 a0     b,l 8310 <__pthread_initialize_minimal>=
,rp
>     41bc:       08 13 02 44     copy r19,r4
>     41c0:       08 04 02 53     copy r4,r19
>     41c4:       e8 40 0c 70     b,l 4804 <frame_dummy>,rp
>     41c8:       08 00 02 40     nop
>     41cc:       e8 44 1d 2c     b,l e068 <__do_global_ctors_aux>,rp
>     41d0:       08 00 02 40     nop
>     41d4:       4b c2 3f 59     ldw -54(sp),rp
>     41d8:       08 04 02 53     copy r4,r19
>     41dc:       e8 40 c0 00     bv r0(rp)
> 
> 000041e0 <_end_init>:
>     41e0:       4f c4 3f 81     ldw,mb -40(sp),r4
> 
> This .init section isn't built correctly in shared libraries.  The
> PIC register r19 needs to be retored after every call if it is
> subsequently used.  As can be seen above, there is no restore after
> the call to frame_dummy and r19 is needed for the call to
> __do_global_ctors_aux.
> 
mmm not yet in 2.3.6-4:
# objdump -d /lib/libpthread.so.0 | more

/lib/libpthread.so.0:     file format elf32-hppa-linux

Disassembly of section .init:

000041ac <_init>:
    41ac:       6b c2 3f d9     stw rp,-14(sp)
    41b0:       6f c4 00 80     stw,ma r4,40(sp)
    41b4:       6b d3 3f c1     stw r19,-20(sp)
    41b8:       e8 42 02 a0     b,l 8310 <__pthread_initialize_minimal>,r=
p
    41bc:       08 13 02 44     copy r19,r4
    41c0:       08 04 02 53     copy r4,r19
    41c4:       e8 40 0c 70     b,l 4804 <frame_dummy>,rp
    41c8:       08 00 02 40     nop
    41cc:       e8 44 1d 2c     b,l e068 <__do_global_ctors_aux>,rp
    41d0:       08 00 02 40     nop
    41d4:       4b c2 3f 59     ldw -54(sp),rp
    41d8:       08 04 02 53     copy r4,r19
    41dc:       e8 40 c0 00     bv r0(rp)

000041e0 <_end_init>:
    41e0:       4f c4 3f 81     ldw,mb -40(sp),r4
Disassembly of section .text:
=3D=3D=3D=3D<>=3D=3D=3D=3D

and the same with my testing 2.3.6-4.1 build with gcc dpkg:
dpkg -l gcc-4.0
Desired=3DUnknown/Install/Remove/Purge/Hold
| Status=3DNot/Installed/Config-files/Unpacked/Failed-config/Half-install=
ed
|/ Err?=3D(none)/Hold/Reinst-required/X=3Dboth-problems (Status,Err: uppe=
rcase=3Dbad)
||/ Name                        Version                     Description
+++-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D
ii  gcc-4.0                     4.0.3-1                     The GNU C com=
piler

Thanks,
    Joel
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Subject: Re: [parisc-linux] Fwd: hppa glibc clone() patch proposal (3/3)
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Xref: news.gmane.org gmane.linux.ports.parisc:23503

Joel,

Some comments:

1) I think you are right in fixing the first __syscall_error call. I
don't know why we are doing a b instead of bl now. It seems to be that
the current code will result in an orphaned stack frame if we ever
errored out. However, I see that in the other syscalls, the call to
__syscall_error is inlined. Maybe that would be better.....

2)
>          .text
>  ENTRY(__clone)
> +    /* this proto do: stw rp, -20(sp) */

Yes, you should put "stw %rp, -20(%sp)" here.

> +       /* FIXME: I have no idea how profiling works on hppa. */

Let's leave profiling out of this for now....

> +       /* Sanity check arguments.  */
> +       comib,=         0, %arg0, .Larg_error   /* no NULL function
> pointers */
> +       ldi             -EINVAL, %ret0
> +       comib,=         0, %arg1, .Larg_error   /* no NULL stack
> pointers */
> +       nop

There seems to be some confusion here....

You want clone() to return -1, and set errno = -EINVAL. The logic to do
this is in .Larg_error. Probably better here to just detect the two
error conditions and branch to .Larg_error and handle all the logic there.

>         /* Save the fn ptr and arg on the new stack.  */
>         stwm            %arg0, 64(%arg1)
> @@ -94,13 +102,35 @@
>  #endif
>         /* Set errno */
>         copy            %ret0, %r3
> -       b               __syscall_error
> +       bl              __syscall_error, %rp
>         sub             %r0, %ret0, %arg0
>         copy            %r3, %ret0
>         /* Return after setting errno */
> +       /* Restore rp from ENTRY() */
> +       ldw             -84(%sp), %rp

Right now since you don't store rp, this will give you junk.

> +.Larg_error:
> +
> +       /* Save arg0: the fn ptr.  */
> +       stw             %arg0, -36(%sp)

In the error case, you don't invoke the function, so no need to save and
restore arg0.

> +       /* Save the PIC register? */
> +       stwm            %r3, 64(%sp)

r3 is just a caller-save register; it has nothing to do with PIC. You
don't need to use r3 in this path; just create a stack frame with:
	ldo 64(%sp), %sp

> +       /* Set errno */
> +       copy            %ret0, %r3
> +       bl              __syscall_error, %rp
> +       sub             %r0, %ret0, %arg0

Here, I think you want to do (or inline the __syscall_error logic):
	bl __syscall_error, %rp
	ldi EINVAL, %arg0
	ldi -1, %ret0

> +       /* Restore arg0: the fn ptr.  */
> +       ldw             -100(%sp), %arg0
> +       /* Return after setting errno */
> +       /* Restore rp from ENTRY() */
> +       ldw             -84(%sp), %rp
> +       bv              %r0(%rp)
> +       ldwm            -64(%sp), %r3

and here you can just do:
	ldw -84(%sp), %rp
	bv %r0(%rp)
	ldo -64(%sp), %sp

randolph

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Subject: Re: [parisc-linux] Fwd: hppa glibc clone() patch proposal (3/3)
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Xref: news.gmane.org gmane.linux.ports.parisc:23504

> > Joel,
> > 
> > Some comments:
> > 
> > 1) I think you are right in fixing the first __syscall_error call. I
> > don't know why we are doing a b instead of bl now. It seems to be tha=
t
> > the current code will result in an orphaned stack frame if we ever
> > errored out. However, I see that in the other syscalls, the call to
> > __syscall_error is inlined. Maybe that would be better.....
> > 
> I just lake of knowledge to do it in asm but if you show me another exa=
mple, I
> could try it ;-)
> 
> > 2)
> > >          .text
> > >  ENTRY(__clone)
> > > +    /* this proto do: stw rp, -20(sp) */
> > 
> > Yes, you should put "stw %rp, -20(%sp)" here.
> > 
> well my comment seems to be bad, I would mean:
>         /* this Entry() macro do a: stw rp, -20(sp) */
> 
> sysdeps/unix/sysv/linux/hppa/sysdep.h
> [snip]
> /* Define an entry point visible from C.
> 
>    There is currently a bug in gdb which prevents us from specifying
>    incomplete stabs information.  Fake some entries here which specify
>    the current source file.  */
> #define ENTRY(name)                                                    =
 \
>         .text                                           ASM_LINE_SEP   =
 \
>         .align ALIGNARG(4)                              ASM_LINE_SEP   =
 \
>         .export C_SYMBOL_NAME(name)                     ASM_LINE_SEP   =
 \
>         .type   C_SYMBOL_NAME(name),@function           ASM_LINE_SEP   =
 \
>         C_LABEL(name)                                   ASM_LINE_SEP   =
 \
>         .PROC                                           ASM_LINE_SEP   =
 \
>         .CALLINFO FRAME=3D64,CALLS,SAVE_RP,ENTRY_GR=3D3     ASM_LINE_SE=
P    \
>         .ENTRY                                          ASM_LINE_SEP   =
 \
>         /* SAVE_RP says we do */                        ASM_LINE_SEP   =
 \
>         stw             %rp, -20(%sr0, %sp)             ASM_LINE_SEP   =
 \
>         /*FIXME: Call mcount? (carefull with stack!) */
> [snip]
> 
> > > +       /* FIXME: I have no idea how profiling works on hppa. */
> > 
> > Let's leave profiling out of this for now....
> > 
> > > +       /* Sanity check arguments.  */
> > > +       comib,=3D         0, %arg0, .Larg_error   /* no NULL functi=
on
> > > pointers */
> > > +       ldi             -EINVAL, %ret0
> > > +       comib,=3D         0, %arg1, .Larg_error   /* no NULL stack
> > > pointers */
> > > +       nop
> > 
> > There seems to be some confusion here....
> > 
> > You want clone() to return -1, and set errno =3D -EINVAL. The logic t=
o do
> > this is in .Larg_error. Probably better here to just detect the two
> > error conditions and branch to .Larg_error and handle all the logic t=
here.
> > 
> Totaly agree, as a first attempt I wonder based that on just reverting =
a
> previous hunk of patch, I will make much effort ;-)
>   
> > >         /* Save the fn ptr and arg on the new stack.  */
> > >         stwm            %arg0, 64(%arg1)
> > > @@ -94,13 +102,35 @@
> > >  #endif
> > >         /* Set errno */
> > >         copy            %ret0, %r3
> > > -       b               __syscall_error
> > > +       bl              __syscall_error, %rp
> > >         sub             %r0, %ret0, %arg0
> > >         copy            %r3, %ret0
> > >         /* Return after setting errno */
> > > +       /* Restore rp from ENTRY() */
> > > +       ldw             -84(%sp), %rp
> > 
> > Right now since you don't store rp, this will give you junk.
> > 
> > > +.Larg_error:
> > > +
> > > +       /* Save arg0: the fn ptr.  */
> > > +       stw             %arg0, -36(%sp)
> > 
> > In the error case, you don't invoke the function, so no need to save =
and
> > restore arg0.
> > 
> Thanks, I would be sure that gcc will not rely on the availability of t=
his var
> in r26 after the function call.
> 
> > > +       /* Save the PIC register? */
> > > +       stwm            %r3, 64(%sp)
> > 
> > r3 is just a caller-save register; it has nothing to do with PIC. You=

> > don't need to use r3 in this path; just create a stack frame with:
> > 	ldo 64(%sp), %sp
> > 
> Yes, I just read jda comment about another thread: PIC register is actu=
aly r19.
> 
> > > +       /* Set errno */
> > > +       copy            %ret0, %r3
> > > +       bl              __syscall_error, %rp
> > > +       sub             %r0, %ret0, %arg0
> > 
> > Here, I think you want to do (or inline the __syscall_error logic):
> > 	bl __syscall_error, %rp
> > 	ldi EINVAL, %arg0
> > 	ldi -1, %ret0
> > 
> > > +       /* Restore arg0: the fn ptr.  */
> > > +       ldw             -100(%sp), %arg0
> > > +       /* Return after setting errno */
> > > +       /* Restore rp from ENTRY() */
> > > +       ldw             -84(%sp), %rp
> > > +       bv              %r0(%rp)
> > > +       ldwm            -64(%sp), %r3
> > 
> > and here you can just do:
> > 	ldw -84(%sp), %rp
> > 	bv %r0(%rp)
> > 	ldo -64(%sp), %sp
> > 
> Cool.
> 
> Many thanks for all your accurate advises,
>     Joel
> 
mmm, a bit busy in prod (unfortunately 2 mirrored boot disk was corrupted=
 ->
hope that ignite tape would help)

please review this next attempt (not yet tested):
# diff -Nau clone.S.orig2 clone.S.New2
--- clone.S.orig2       2006-03-24 10:11:27.000000000 +0100
+++ clone.S.New2        2006-03-27 18:34:54.000000000 +0200
@@ -45,7 +45,27 @@
 
         .text
 ENTRY(__clone)
+    /* this ENTRY() macro do: stw rp, -20(sp) */
 
+       /* Sanity check arguments.  */
+       and             %arg0, %arg1, %r20      /* no NULL function point=
ers */
+       comib,<>,n      0, %r20, .Lno_arg_error 
+
+       /* Create a stack frame */
+       ldo             64(%sp), %sp
+
+       /* Set errno */
+       bl              __syscall_error, %rp
+       ldi             EINVAL, %arg0
+/*     ldi             -1, %ret0 */
+
+       /* Return after setting errno */
+       /* Restore rp from ENTRY() */
+       ldw             -84(%sp), %rp
+       bv              %r0(%rp)
+       ldo             -64(%sp), %sp
+
+.Lno_arg_error:
        /* Save the fn ptr and arg on the new stack.  */
        stwm            %arg0, 64(%arg1)
        stw             %arg3, -60(%arg1)
@@ -94,10 +114,12 @@
 #endif
        /* Set errno */
        copy            %ret0, %r3
-       b               __syscall_error
+       bl              __syscall_error, %rp
        sub             %r0, %ret0, %arg0
        copy            %r3, %ret0
        /* Return after setting errno */
+       /* Restore rp from ENTRY() */
+       ldw             -84(%sp), %rp
        bv              %r0(%rp)
        ldwm            -64(%sp), %r3
 
=3D=3D=3D=3D<>=3D=3D=3D=3D

Some comments:
  1/ I just comment out "ldi -1, %ret0" because imho our __syscall_error(=
) did
it already:
sysdeps/unix/sysv/linux/hppa/sysdep.c:
[snip]
int
__syscall_error (int err_no)
{
  __set_errno (err_no);
  return -1;
}
[snip]

  2/ hope that r20 is a good choice?

Thanks again,
    Joel=0A=0A-----------------------------------------------------------=
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Subject: Re: [parisc-linux] Fwd: hppa glibc clone() patch proposal (3/3)
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Xref: news.gmane.org gmane.linux.ports.parisc:23505

> please review this next attempt (not yet tested):

What source tree is this patch against?

>   2/ hope that r20 is a good choice?

As long as this is a caller-saves register then it doesn't matter.

Cheers,
Carlos.
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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes) and more
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On Wed, Mar 29, 2006 at 01:34:44AM -0800, Chris Frost wrote:
> If I change the if condition in superio.c to not error when irq == 2
> the machine gets further but produces several warnings, errors, stack
> traces, and an oops or two. It does recognize the firewire controller
> and sees a firewire disk I attach. I am even able to mount the file system
> on the disk and list its contents. However, the results of a find on the
> drive appear to only come in small chunks when I type on the keyboard.
> It would seem superio and the card are linked.
>

lspci -vn for the card, please...

Try commenting out 
	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_USB) },
	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415) },
in superio.c and seeing if that helps at all.

Cheers,
	Kyle 
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When I boot a B1000 using 2.6.16-pa8 with an IOGear Firewire+USB card
(GUF3121) the machine shows the error drivers/parisc/superio.c:308,
"Illegal irq number(2)", after it brings up USB. This happens when the
card is in the 66MHz 64bit slot and when it is in one of the 33MHz
32bit slots. (The card is 33MHz 32bit; I tried to see if different
slots/buses might change the irq.)

If I change the if condition in superio.c to not error when irq == 2
the machine gets further but produces several warnings, errors, stack
traces, and an oops or two. It does recognize the firewire controller
and sees a firewire disk I attach. I am even able to mount the file system
on the disk and list its contents. However, the results of a find on the
drive appear to only come in small chunks when I type on the keyboard.
It would seem superio and the card are linked.

I'd be most interested in any thoughts or suggestions; thank you!


kernel: 2.6.16-pa8
gcc: debian 1:3.3.5-13
binutils: debian 2.15-6
machine: 9000/785/B1000
32bit kernel
palo kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
System.map: http://woozle.cs.ucla.edu/~frost/stuff/System.map-2.6.16-pa8.gz
.config: attached (as config.gz)
no remote management card
using graphics console (above command line from a terminal boot of the machine)
compiled the kernel on the same machine

-- 
Chris Frost  |  <http://www.frostnet.net/chris/>
-------------+----------------------------------
Public PGP Key:
   Email chris@frostnet.net with the subject "retrieve pgp key"
   or visit <http://www.frostnet.net/chris/about/pgp_key.phtml>

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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] What's the right way to create a new stack in glibc?
Date: Thu, 30 Mar 2006 07:35:27 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:23510

Hello Randoplh, Carlos,

May be can you give me some more light.

I was testing all rational changes suggested by tausq in last mail about
clone() patch but it was broken. A first one was of mine I sadly confuse
boolean and bit  insn, after a fix it was still broken ;<(. I so come bac=
k
step by step to a working situation and noticed that:
this hunk made panicing kernel:
[snip]    
.Larg_error:

       /* Create a stack frame */
       ldo             64(%sp), %sp

       /* Set errno */
       bl              __syscall_error, %rp
       sub             %r0, %ret0, %arg0

       /* Return after setting errno */
       /* Restore rp from ENTRY() */
       ldw             -84(%sp), %rp
       bv              %r0(%rp)
       ldo             -64(%sp), %sp
[snip]
clone04(2665): unaligned access to 0xfffffffa at ip=3D0x00011027
clone04(2665): unaligned access to 0xfffffffa at ip=3D0x0001105f
clone04(2665): unaligned access to 0xfffffffa at ip=3D0x00011177
clone04(2665): unaligned access to 0xfffffffa at ip=3D0x0001117f
Unaligned handler failed, ret =3D -2
clone04 (pid 2665): Unaligned data reference (code 28) at 0001119b
kernel BUG at /CAD/linux-2.6.16-pa8/mm/mmap.c:1957!
Backtrace:
 [<10158848>] exit_mmap+0x178/0x330
 [<101235a4>] mmput+0x44/0xb8
 [<101281e0>] do_exit+0x12c/0x8a0
 [<101289b8>] do_group_exit+0x64/0xc4
 [<1010b114>] syscall_exit+0x0/0x14

Kernel panic - not syncing: BUG!

OTH, this hunk was working:
[snip]
.Larg_error:

        /* Create a stack frame */
        stwm            %r3, 64(%sp)

        /* Set errno */
        bl              __syscall_error, %rp
        sub             %r0, %ret0, %arg0

        /* Return after setting errno */
        /* Restore rp from ENTRY() */
        ldw             -84(%sp), %rp
        bv              %r0(%rp)
        ldwm            -64(%sp), %r3
[snip]

Even though that's well what does gcc when I compile this sample:
[snip]
int sclone(unsigned long Val1, unsigned long Val2)
{
  if ((( Val1) && (Val2))) {
    printf ("Ok ;-)\n");
    return 0;
  } else { 
    printf ("Ko ;-(\n");
    return -1;
  } 
};
[snip]

# gcc --save-temps -O2 foo.c
more foo.s
[snip]
sclone:
        .PROC
        .CALLINFO FRAME=3D64,CALLS,SAVE_RP
        .ENTRY
        stw %r2,-20(%r30)
        comib,=3D 0,%r26,.L2
        ldo 64(%r30),%r30
        comib,<>,n 0,%r25,.L7
.L2:
        ldil LR'.LC1,%r26
        bl puts,%r2
        ldo RR'.LC1(%r26),%r26
        ldw -84(%r30),%r2
        ldi -1,%r28
        bv %r0(%r2)
        ldo -64(%r30),%r30
.L7:
[snip]

TIA for addtional attention,
    Joel




=0A=0A-------------------------------------------------------=0ANOTE! My =
email address is changing to ... @scarlet.be=0APlease make the necessary =
changes in your address book. =0A=0A

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From: Chris Frost <chris@frostnet.net>
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Subject: Re: [parisc-linux] IOGear Firewire+USB card causes unexpected irq 2
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On Wed, Mar 29, 2006 at 08:58:38AM -0500, Kyle McMartin wrote:
> lspci -vn for the card, please...

Attached (pci) is the output of lspci -vvv. The vendor and device codes
are immediately below. As the machine does not boot with the card in the
lspci output is from a pc.

0:d.0: class 604, vendor id 3388, pci id 0021, rev 13
1:c.0: class 0c03, vendor id 1033, pci id 0035, rev 41
1:c.1: class 0c03, vendor id 1033, pci id 0035, rev 41
1:c.2: class 0c03, vendor id 1033, pci id 00e0, rev 2
1:f.0: class 0c00, vendor id 1003, pci id 00f2, rev 1


> Try commenting out 
> 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_USB) },
> 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415) },
> in superio.c and seeing if that helps at all.

This change appears to have no effect.


Max suggested checking the machine's firmware version. It was running 3.4.
I upgraded the machine to the latest, 5.0, but this has no visible effect.


Since 2.6.16-pa9 was released today I also upgraded to it, but with no
visible change.

thanks again,
-- 
Chris Frost  |  <http://www.frostnet.net/chris/>
-------------+----------------------------------
Public PGP Key:
   Email chris@frostnet.net with the subject "retrieve pgp key"
   or visit <http://www.frostnet.net/chris/about/pgp_key.phtml>

--TB36FDmn/VVEgNH/
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00:0d.0 PCI bridge: Hint Corp: Unknown device 0021 (rev 13) (prog-if 00 [Normal decode])
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 66, cache line size 08
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 0000f000-00000fff
	Memory behind bridge: ff900000-ff9fffff
	Prefetchable memory behind bridge: 00000000ff800000-00000000ff800000
	BridgeCtl: Parity+ SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
	Capabilities: [80] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
		Bridge: PM- B3+
	Capabilities: [90] #06 [0000]
	Capabilities: [a0] Vital Product Data

01:0c.0 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
	Subsystem: Unknown device 1735:0035
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 64 (250ns min, 10500ns max), cache line size 08
	Interrupt: pin A routed to IRQ 7
	Region 0: Memory at ff9fc000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: [40] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:0c.1 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
	Subsystem: Unknown device 1735:0035
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 64 (250ns min, 10500ns max), cache line size 08
	Interrupt: pin B routed to IRQ 5
	Region 0: Memory at ff9fd000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: [40] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:0c.2 USB Controller: NEC Corporation: Unknown device 00e0 (rev 02) (prog-if 20)
	Subsystem: Unknown device 1735:00e1
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 64 (4000ns min, 8500ns max), cache line size 08
	Interrupt: pin C routed to IRQ 11
	Region 0: Memory at ff9fec00 (32-bit, non-prefetchable) [size=256]
	Capabilities: [40] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:0f.0 FireWire (IEEE 1394): NEC Corporation: Unknown device 00f2 (rev 01) (prog-if 10 [OHCI])
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 64 (63750ns min, 63750ns max), cache line size 08
	Interrupt: pin A routed to IRQ 9
	Region 0: Memory at ff9ff000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: [60] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

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From - Thu Nov 08 21:34:31 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Fwd: hppa glibc clone() patch proposal (3/3)
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Xref: news.gmane.org gmane.linux.ports.parisc:23512

Hello Randolph, Carlos,

> Joel,
> 
> Some comments:
> 
> 1) I think you are right in fixing the first __syscall_error call. I
> don't know why we are doing a b instead of bl now. It seems to be that
> the current code will result in an orphaned stack frame if we ever
> errored out. However, I see that in the other syscalls, the call to
> __syscall_error is inlined. Maybe that would be better.....
> 
> 2)
> >          .text
> >  ENTRY(__clone)
> > +    /* this proto do: stw rp, -20(sp) */
> 
> Yes, you should put "stw %rp, -20(%sp)" here.
> 
> > +       /* FIXME: I have no idea how profiling works on hppa. */
> 
> Let's leave profiling out of this for now....
> 
> > +       /* Sanity check arguments.  */
> > +       comib,=3D         0, %arg0, .Larg_error   /* no NULL function=

> > pointers */
> > +       ldi             -EINVAL, %ret0
> > +       comib,=3D         0, %arg1, .Larg_error   /* no NULL stack
> > pointers */
> > +       nop
> 
> There seems to be some confusion here....
> 
> You want clone() to return -1, and set errno =3D -EINVAL. The logic to =
do
> this is in .Larg_error. Probably better here to just detect the two
> error conditions and branch to .Larg_error and handle all the logic the=
re.
> 
> >         /* Save the fn ptr and arg on the new stack.  */
> >         stwm            %arg0, 64(%arg1)
> > @@ -94,13 +102,35 @@
> >  #endif
> >         /* Set errno */
> >         copy            %ret0, %r3
> > -       b               __syscall_error
> > +       bl              __syscall_error, %rp
> >         sub             %r0, %ret0, %arg0
> >         copy            %r3, %ret0
> >         /* Return after setting errno */
> > +       /* Restore rp from ENTRY() */
> > +       ldw             -84(%sp), %rp
> 
> Right now since you don't store rp, this will give you junk.
> 
> > +.Larg_error:
> > +
> > +       /* Save arg0: the fn ptr.  */
> > +       stw             %arg0, -36(%sp)
> 
> In the error case, you don't invoke the function, so no need to save an=
d
> restore arg0.
> 
> > +       /* Save the PIC register? */
> > +       stwm            %r3, 64(%sp)
> 
> r3 is just a caller-save register; it has nothing to do with PIC. You
> don't need to use r3 in this path; just create a stack frame with:
> 	ldo 64(%sp), %sp
> 
So excepted this above stuff (for which I didn't yet understand the pb) a=
nd
inlining __syscall_error() (not yet enough knowledge to do), ...

> > +       /* Set errno */
> > +       copy            %ret0, %r3
> > +       bl              __syscall_error, %rp
> > +       sub             %r0, %ret0, %arg0
> 
> Here, I think you want to do (or inline the __syscall_error logic):
> 	bl __syscall_error, %rp
> 	ldi EINVAL, %arg0
> 	ldi -1, %ret0
> 
> > +       /* Restore arg0: the fn ptr.  */
> > +       ldw             -100(%sp), %arg0
> > +       /* Return after setting errno */
> > +       /* Restore rp from ENTRY() */
> > +       ldw             -84(%sp), %rp
> > +       bv              %r0(%rp)
> > +       ldwm            -64(%sp), %r3
> 
> and here you can just do:
> 	ldw -84(%sp), %rp
> 	bv %r0(%rp)
> 	ldo -64(%sp), %sp
> 
here is the last proposal:
--- glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S.orig2      2006-03-2=
4
10:11:27.000000000 +0100
+++ glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S    2006-03-30
13:56:56.000000000 +0200
@@ -45,7 +45,30 @@
 
         .text
 ENTRY(__clone)
+    /* this ENTRY() macro do: stw rp, -20(sp)
+       and "FIXME: I have no idea how profiling works on hppa." */
 
+       /* Sanity check arguments.  */
+       comib,=3D         0, %arg0, .Larg_error           /* no NULL func=
tion
pointers */
+       nop
+       comib,<>,n      0, %arg1, .Lno_arg_error        /* no NULL stack
pointers */
+       nop
+
+.Larg_error:
+       /* Create a stack frame */
+       stwm            %r3, 64(%sp)
+       /* Set errno */
+       bl              __syscall_error, %rp
+       ldi             EINVAL, %arg0
+/*     ldi             -1, %ret0 */
+
+       /* Return after setting errno */
+       /* Restore rp from ENTRY() */
+       ldw             -84(%sp), %rp
+       bv              %r0(%rp)
+       ldwm            -64(%sp), %r3
+
+.Lno_arg_error:
        /* Save the fn ptr and arg on the new stack.  */
        stwm            %arg0, 64(%arg1)
        stw             %arg3, -60(%arg1)
@@ -94,10 +117,12 @@
 #endif
        /* Set errno */
        copy            %ret0, %r3
-       b               __syscall_error
+       bl              __syscall_error, %rp
        sub             %r0, %ret0, %arg0
        copy            %r3, %ret0
        /* Return after setting errno */
+       /* Restore rp from ENTRY() */
+       ldw             -84(%sp), %rp
        bv              %r0(%rp)
        ldwm            -64(%sp), %r3
 
=3D=3D=3D=3D<>=3D=3D=3D=3D

May be should I still put the:
+       /* Create a stack frame */
+       stwm            %r3, 64(%sp)

in the delay slot of the first cmpib,=3D (on going to test ...)

Thanks,
    Joel=0A=0A-------------------------------------------------------=0AN=
OTE! My email address is changing to ... @scarlet.be=0APlease make the ne=
cessary changes in your address book. =0A=0A

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Xref: news.gmane.org gmane.linux.ports.parisc:23513

> Hello Randoplh, Carlos,
> 
> May be can you give me some more light.
> 
> I was testing all rational changes suggested by tausq in last mail abou=
t
> clone() patch but it was broken. A first one was of mine I sadly confus=
e
> boolean and bit  insn, after a fix it was still broken ;<(. I so come b=
ack
> step by step to a working situation and noticed that:
> this hunk made panicing kernel:
> [snip]    
> .Larg_error:
> 
>        /* Create a stack frame */
>        ldo             64(%sp), %sp
> 
>        /* Set errno */
>        bl              __syscall_error, %rp
>        sub             %r0, %ret0, %arg0
> 
>        /* Return after setting errno */
>        /* Restore rp from ENTRY() */
>        ldw             -84(%sp), %rp
>        bv              %r0(%rp)
>        ldo             -64(%sp), %sp
> [snip]
> clone04(2665): unaligned access to 0xfffffffa at ip=3D0x00011027
> clone04(2665): unaligned access to 0xfffffffa at ip=3D0x0001105f
> clone04(2665): unaligned access to 0xfffffffa at ip=3D0x00011177
> clone04(2665): unaligned access to 0xfffffffa at ip=3D0x0001117f
> Unaligned handler failed, ret =3D -2
> clone04 (pid 2665): Unaligned data reference (code 28) at 0001119b
> kernel BUG at /CAD/linux-2.6.16-pa8/mm/mmap.c:1957!
> Backtrace:
>  [<10158848>] exit_mmap+0x178/0x330
>  [<101235a4>] mmput+0x44/0xb8
>  [<101281e0>] do_exit+0x12c/0x8a0
>  [<101289b8>] do_group_exit+0x64/0xc4
>  [<1010b114>] syscall_exit+0x0/0x14
> 
> Kernel panic - not syncing: BUG!
> 
mmm, having a look at the clone04.s, I can read:
[...]
main:
        .PROC
        .CALLINFO FRAME=3D128,CALLS,SAVE_RP,SAVE_SP,ENTRY_GR=3D5
        .ENTRY
        stw %r2,-20(%r30)
.LCFI0:
        copy %r3,%r1
.LCFI1:
        copy %r30,%r3
.LCFI2:
        stwm %r1,128(%r30)
.LCFI3:
        stw %r5,24(%r3)
.LCFI4:
        stw %r4,28(%r3)
.LCFI5:
[snip]

That doesn't explain why the system panic but may be why save/restore r3 =
help?

> OTH, this hunk was working:
> [snip]
> .Larg_error:
> 
>         /* Create a stack frame */
>         stwm            %r3, 64(%sp)
> 
>         /* Set errno */
>         bl              __syscall_error, %rp
>         sub             %r0, %ret0, %arg0
> 
>         /* Return after setting errno */
>         /* Restore rp from ENTRY() */
>         ldw             -84(%sp), %rp
>         bv              %r0(%rp)
>         ldwm            -64(%sp), %r3
> [snip]
> 
> Even though that's well what does gcc when I compile this sample:
> [snip]
> int sclone(unsigned long Val1, unsigned long Val2)
> {
>   if ((( Val1) && (Val2))) {
>     printf ("Ok ;-)\n");
>     return 0;
>   } else { 
>     printf ("Ko ;-(\n");
>     return -1;
>   } 
> };
> [snip]
> 
> # gcc --save-temps -O2 foo.c
> more foo.s
> [snip]
> sclone:
>         .PROC
>         .CALLINFO FRAME=3D64,CALLS,SAVE_RP
>         .ENTRY
>         stw %r2,-20(%r30)
>         comib,=3D 0,%r26,.L2
>         ldo 64(%r30),%r30
>         comib,<>,n 0,%r25,.L7
> .L2:
>         ldil LR'.LC1,%r26
>         bl puts,%r2
>         ldo RR'.LC1(%r26),%r26
>         ldw -84(%r30),%r2
>         ldi -1,%r28
>         bv %r0(%r2)
>         ldo -64(%r30),%r30
> .L7:
> [snip]
> 
Thank again,
    Joel
=0A=0A-------------------------------------------------------=0ANOTE! My =
email address is changing to ... @scarlet.be=0APlease make the necessary =
changes in your address book. =0A=0A

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Xref: news.gmane.org gmane.linux.ports.parisc:23514

The following changes since commit 5d4fe2c1ce83c3e967ccc1ba3d580c1a5603a866:
  Lennert Buytenhek:
        ixp2000: fix gcc4 breakage

are found in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git

Helge Deller:
      [PARISC] Enable free_initrd_mem()
      [PARISC] I/O-Space must be ioremap_nocache()'d
      [PARISC] Fix IOREMAP with a 64-bit kernel
      [PARISC] Add STRICT_MM_TYPECHECKS
      [PARISC] Add CONFIG_HPPA_IOREMAP to conditionally enable ioremap
      [PARISC] Fix stifb with IOREMAP and a 64-bit kernel
      [PARISC] Enable ioremap functionality unconditionally
      [PARISC] Temporary FIXME for ioremapping EISA regions
      [PARISC] Remove obsolete CONFIG_DEBUG_IOREMAP
      [PARISC] Fixup CONFIG_EISA a bit
      [PARISC] Convert HIL drivers to use input_allocate_device
      [PARISC] Update defconfigs

James Bottomley:
      [PARISC] Add parisc implementation of flush_anon_page()
      [PARISC] Add parisc implementation of flush_kernel_dcache_page()

Kyle McMartin:
      [PARISC] getsockopt should be ENTRY_COMP
      [PARISC] More useful readwrite lock helpers
      [PARISC] Add PREEMPT support
      [PARISC] Make local_t use atomic_long_t
      [PARISC] Move ioremap EXPORT_SYMBOL from parisc_ksyms.c
      [PARISC] Kill duplicated EXPORT_SYMBOL warnings
      [PARISC] Add atomic_sub_and_test
      [PARISC] Fix double free when removing HIL drivers

Stuart Brady:
      [PARISC] Enabled some NLS modules in a500, b180 and c3000 defconfigs

Thibaut VARENE:
      [PARISC] Clarify pdc_stable license terms

 arch/parisc/Kconfig                 |    6 -
 arch/parisc/configs/712_defconfig   |  160 ++++++++++------------
 arch/parisc/configs/a500_defconfig  |    4 -
 arch/parisc/configs/b180_defconfig  |   12 +-
 arch/parisc/configs/c3000_defconfig |  252 +++++++++++++++--------------------
 arch/parisc/defconfig               |  165 +++++++++++++++--------
 arch/parisc/kernel/cache.c          |    6 -
 arch/parisc/kernel/entry.S          |   45 +++++-
 arch/parisc/kernel/pacache.S        |    4 -
 arch/parisc/kernel/parisc_ksyms.c   |   19 ---
 arch/parisc/kernel/pdc_chassis.c    |    5 -
 arch/parisc/kernel/perf.c           |    2 
 arch/parisc/kernel/syscall_table.S  |    2 
 arch/parisc/lib/iomap.c             |    4 -
 arch/parisc/mm/init.c               |    7 -
 arch/parisc/mm/ioremap.c            |   54 +-------
 drivers/input/keyboard/hil_kbd.c    |   58 ++++----
 drivers/input/keyboard/hilkbd.c     |   49 ++++---
 drivers/input/mouse/hil_ptr.c       |   92 +++++++------
 drivers/input/serio/gscps2.c        |    4 -
 drivers/parisc/ccio-dma.c           |    2 
 drivers/parisc/dino.c               |    5 -
 drivers/parisc/eisa.c               |    2 
 drivers/parisc/iosapic.c            |    2 
 drivers/parisc/lba_pci.c            |    8 +
 drivers/parisc/pdc_stable.c         |    5 -
 drivers/parisc/sba_iommu.c          |    6 -
 drivers/parisc/superio.c            |   46 +++---
 drivers/scsi/lasi700.c              |    2 
 drivers/scsi/zalon.c                |    2 
 drivers/serial/8250_gsc.c           |   15 +-
 drivers/serial/mux.c                |    4 -
 drivers/video/console/sticore.c     |   18 ---
 drivers/video/sticore.h             |   37 ++---
 drivers/video/stifb.c               |   91 +------------
 include/asm-parisc/atomic.h         |    3 
 include/asm-parisc/cache.h          |    2 
 include/asm-parisc/cacheflush.h     |   17 ++
 include/asm-parisc/io.h             |   95 -------------
 include/asm-parisc/local.h          |   18 +--
 include/asm-parisc/page.h           |   58 ++++++--
 include/asm-parisc/pci.h            |    5 +
 include/asm-parisc/pdc_chassis.h    |    5 -
 include/asm-parisc/spinlock.h       |   16 ++
 include/asm-parisc/thread_info.h    |    3 
 lib/Kconfig.debug                   |   13 --
 46 files changed, 625 insertions(+), 805 deletions(-)
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] Strange newest LAB msg?
Date: Fri, 31 Mar 2006 16:26:38 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:23515

Hello all,

Just noticed on n4k with recent kernel:
[snip]
Mar 31 11:45:39 patst006 kernel: Linux version 2.6.16-pa8-n4kmp
(root@patst006) (gcc version 4.0.3 (Debian 4.0.3-1)) #212 SMP Tue Ma
r 28 12:30:16 CEST 2006
[snip]
Mar 31 11:45:39 patst006 kernel: CPU(s): 2 x PA8600 (PCX-W+) at 550.00000=
0 MHz
Mar 31 11:45:39 patst006 kernel: Whole cache flush 199180 cycles, flushin=
g
5369080 bytes 1536791 cycles
Mar 31 11:45:39 patst006 kernel: Setting cache flush threshold to a9e80 (=
2
CPUs online)
Mar 31 11:45:39 patst006 kernel: SBA found Ike rev 2 at 0xfffffffffed0000=
0
Mar 31 11:45:39 patst006 kernel: SBA found Ike rev 2 at 0xfffffffffed4000=
0
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbffe0000
Mar 31 11:45:39 patst006 kernel: iosapic: no IRTE for 0000:00:04.0 (IRQ n=
ot
connected?)
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbffe2000
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbffe4000
Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbffe8000
Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space =
- use
vmalloc=3D<size> to increase size.
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbffea000
Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space =
- use
vmalloc=3D<size> to increase size.
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbfff0000
Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space =
- use
vmalloc=3D<size> to increase size.
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbfff4000
Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space =
- use
vmalloc=3D<size> to increase size.
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbfff8000
Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space =
- use
vmalloc=3D<size> to increase size.
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xfffffffffece0000
Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space =
- use
vmalloc=3D<size> to increase size.
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xfffffffffece4000
Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space =
- use
vmalloc=3D<size> to increase size.
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xfffffffffece8000
Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space =
- use
vmalloc=3D<size> to increase size.
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xfffffffffecf0000
Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space =
- use
vmalloc=3D<size> to increase size.
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xfffffffffecf4000
Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space =
- use
vmalloc=3D<size> to increase size.
Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
0xfffffffffecf8000
Mar 31 11:45:39 patst006 kernel: SCSI subsystem initialized
Mar 31 11:45:39 patst006 kernel: unwind_init: start =3D 0x10451cc0, end =3D=

0x10472e10, entries =3D 8469
Mar 31 11:45:39 patst006 kernel: Performance monitoring counters enabled =
for
Unknown machine
Mar 31 11:45:39 patst006 kernel: Initializing Cryptographic API
Mar 31 11:45:39 patst006 kernel: io scheduler noop registered
Mar 31 11:45:39 patst006 kernel: io scheduler anticipatory registered (de=
fault)
[...]

(with a previous kernel
Feb 13 13:47:20 patst006 kernel: Linux version 2.6.16-rc3-pa0-n4kmp
(root@patst006) (gcc version 4.0.3 20060128 (prerelease) (Debian
 4.0.2-8)) #14 SMP Mon Feb 13 13:05:14 CET 2006
Feb 13 13:47:20 patst006 kernel: CPU(s): 2 x PA8600 (PCX-W+) at 550.00000=
0 MHz
Feb 13 13:47:20 patst006 kernel: Whole cache flush 217577 cycles, flushin=
g
5352456 bytes 1498027 cycles
Feb 13 13:47:20 patst006 kernel: Setting cache flush threshold to bdcc0 (=
2
CPUs online)
Feb 13 13:47:20 patst006 kernel: SBA found Ike rev 2 at 0xfffffffffed0000=
0
Feb 13 13:47:20 patst006 kernel: SBA found Ike rev 2 at 0xfffffffffed4000=
0
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbffe0000
Feb 13 13:47:20 patst006 kernel: iosapic: no IRTE for 0000:00:04.0 (IRQ n=
ot
connected?)
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbffe2000
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbffe4000
Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbffe8000
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbffea000
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbfff0000
Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbfff4000
Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xffffffffbfff8000
Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xfffffffffece0000
Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xfffffffffece4000
Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xfffffffffece8000
Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xfffffffffecf0000
Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (c=
learing)
Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xfffffffffecf4000
Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
0xfffffffffecf8000
Feb 13 13:47:20 patst006 kernel: SCSI subsystem initialized
Feb 13 13:47:20 patst006 kernel: unwind_init: start =3D 0x10452ce0, end =3D=

0x10473d50, entries =3D 8455
Feb 13 13:47:20 patst006 kernel: Performance monitoring counters enabled =
for
Unknown machine
Feb 13 13:47:20 patst006 kernel: Initializing Cryptographic API
[snip]
)

Joel=0A=0A---------------------------------------------------------------=
=0AA free anti-spam and anti-virus filter on all Scarlet mailboxes=0AMore=
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From - Thu Nov 08 21:34:31 2018
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re:[parisc-linux] "BUG: soft lockup detected on CPU#0" on recent
	64bit k-2.6.16 (up or smp)
Date: Fri, 31 Mar 2006 16:41:56 +0100
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Hello pa*,
> 
[snip]
> 
> also noticed on n4k runing k-2.6.16-pa0 64bit smp kernel:
> BUG: soft lockup detected on CPU#0!
> 
[...]
>  IAOQ[0]: _read_lock+0x18/0x30
>  IAOQ[1]: _read_lock+0x8/0x30
>  RP(r2): send_group_sig_info+0x3c/0xb0
> 
This kind of hung re-occured on this n4k (64bit smp kernel 2.6.16-pa8);

I just grab the piminfo but useless:
[...]
Parse IAOQ =3D 0x000000ffff80ff3c for CPU[1]

Func: _end, Off: 0xffef1f1244, Addr: 0xffff80ff3c
[...]

Parse IAOQ =3D 0x00000000000006c4 for CPU[3]

[...]

Sorry,
    Joel

PS: I just start the same test but without CONFIG_DETECT_SOFTLOCKUP :<?
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Strange newest LAB msg?
Date: Fri, 31 Mar 2006 08:54:48 -0700
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Just so nobody else has to scratch their head looking at two
almost-identical dumps, the message Joel means is 

> Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space - use
> vmalloc=<size> to increase size.

Either we're leaking vmalloc space, we allocate too much of it, or we
need to drastically increase it the amount of it we have available.

On Fri, Mar 31, 2006 at 04:26:38PM +0100, Joel Soete wrote:
> Hello all,
> 
> Just noticed on n4k with recent kernel:
> [snip]
> Mar 31 11:45:39 patst006 kernel: Linux version 2.6.16-pa8-n4kmp
> (root@patst006) (gcc version 4.0.3 (Debian 4.0.3-1)) #212 SMP Tue Ma
> r 28 12:30:16 CEST 2006
> [snip]
> Mar 31 11:45:39 patst006 kernel: CPU(s): 2 x PA8600 (PCX-W+) at 550.000000 MHz
> Mar 31 11:45:39 patst006 kernel: Whole cache flush 199180 cycles, flushing
> 5369080 bytes 1536791 cycles
> Mar 31 11:45:39 patst006 kernel: Setting cache flush threshold to a9e80 (2
> CPUs online)
> Mar 31 11:45:39 patst006 kernel: SBA found Ike rev 2 at 0xfffffffffed00000
> Mar 31 11:45:39 patst006 kernel: SBA found Ike rev 2 at 0xfffffffffed40000
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbffe0000
> Mar 31 11:45:39 patst006 kernel: iosapic: no IRTE for 0000:00:04.0 (IRQ not
> connected?)
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbffe2000
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbffe4000
> Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbffe8000
> Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space - use
> vmalloc=<size> to increase size.
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbffea000
> Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space - use
> vmalloc=<size> to increase size.
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbfff0000
> Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space - use
> vmalloc=<size> to increase size.
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbfff4000
> Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space - use
> vmalloc=<size> to increase size.
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbfff8000
> Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space - use
> vmalloc=<size> to increase size.
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xfffffffffece0000
> Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space - use
> vmalloc=<size> to increase size.
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xfffffffffece4000
> Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space - use
> vmalloc=<size> to increase size.
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xfffffffffece8000
> Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space - use
> vmalloc=<size> to increase size.
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xfffffffffecf0000
> Mar 31 11:45:39 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Mar 31 11:45:39 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space - use
> vmalloc=<size> to increase size.
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xfffffffffecf4000
> Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space - use
> vmalloc=<size> to increase size.
> Mar 31 11:45:39 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xfffffffffecf8000
> Mar 31 11:45:39 patst006 kernel: SCSI subsystem initialized
> Mar 31 11:45:39 patst006 kernel: unwind_init: start = 0x10451cc0, end =
> 0x10472e10, entries = 8469
> Mar 31 11:45:39 patst006 kernel: Performance monitoring counters enabled for
> Unknown machine
> Mar 31 11:45:39 patst006 kernel: Initializing Cryptographic API
> Mar 31 11:45:39 patst006 kernel: io scheduler noop registered
> Mar 31 11:45:39 patst006 kernel: io scheduler anticipatory registered (default)
> [...]
> 
> (with a previous kernel
> Feb 13 13:47:20 patst006 kernel: Linux version 2.6.16-rc3-pa0-n4kmp
> (root@patst006) (gcc version 4.0.3 20060128 (prerelease) (Debian
>  4.0.2-8)) #14 SMP Mon Feb 13 13:05:14 CET 2006
> Feb 13 13:47:20 patst006 kernel: CPU(s): 2 x PA8600 (PCX-W+) at 550.000000 MHz
> Feb 13 13:47:20 patst006 kernel: Whole cache flush 217577 cycles, flushing
> 5352456 bytes 1498027 cycles
> Feb 13 13:47:20 patst006 kernel: Setting cache flush threshold to bdcc0 (2
> CPUs online)
> Feb 13 13:47:20 patst006 kernel: SBA found Ike rev 2 at 0xfffffffffed00000
> Feb 13 13:47:20 patst006 kernel: SBA found Ike rev 2 at 0xfffffffffed40000
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbffe0000
> Feb 13 13:47:20 patst006 kernel: iosapic: no IRTE for 0000:00:04.0 (IRQ not
> connected?)
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbffe2000
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbffe4000
> Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbffe8000
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbffea000
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbfff0000
> Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbfff4000
> Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xffffffffbfff8000
> Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xfffffffffece0000
> Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xfffffffffece4000
> Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xfffffffffece8000
> Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xfffffffffecf0000
> Feb 13 13:47:20 patst006 kernel: NOTICE: PCI bus reset still asserted! (clearing)
> Feb 13 13:47:20 patst006 kernel: NOTICE: Enabling PCI Arbitration
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xfffffffffecf4000
> Feb 13 13:47:20 patst006 kernel: LBA version TR4.0 (0x5) found at
> 0xfffffffffecf8000
> Feb 13 13:47:20 patst006 kernel: SCSI subsystem initialized
> Feb 13 13:47:20 patst006 kernel: unwind_init: start = 0x10452ce0, end =
> 0x10473d50, entries = 8455
> Feb 13 13:47:20 patst006 kernel: Performance monitoring counters enabled for
> Unknown machine
> Feb 13 13:47:20 patst006 kernel: Initializing Cryptographic API
> [snip]
> )
> 
> Joel
> 
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On Fri, Mar 31, 2006 at 08:54:48AM -0700, Matthew Wilcox wrote:
> 
> Just so nobody else has to scratch their head looking at two
> almost-identical dumps, the message Joel means is 
> 
> > Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space - use
> > vmalloc=<size> to increase size.

Ah - thanks. I saw that but wasn't sure it was the cause of discussion.

> Either we're leaking vmalloc space, we allocate too much of it, or we
> need to drastically increase it the amount of it we have available.

It's odd that vmalloc fails so early in the boot sequence.
At least the last 10 (of 14) PCI busses fail with the
"allocation failed" message.
Could this somehow be related to the IOREMAP changes?

grant
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On Saturday 01 April 2006 09:02, Grant Grundler wrote:
> On Fri, Mar 31, 2006 at 08:54:48AM -0700, Matthew Wilcox wrote:
> > 
> > Just so nobody else has to scratch their head looking at two
> > almost-identical dumps, the message Joel means is 
> > 
> > > Mar 31 11:45:39 patst006 kernel: allocation failed: out of vmalloc space - use
> > > vmalloc=<size> to increase size.
> 
> Ah - thanks. I saw that but wasn't sure it was the cause of discussion.
> 
> > Either we're leaking vmalloc space, we allocate too much of it, or we
> > need to drastically increase it the amount of it we have available.
> 
> It's odd that vmalloc fails so early in the boot sequence.
> At least the last 10 (of 14) PCI busses fail with the
> "allocation failed" message.
> Could this somehow be related to the IOREMAP changes?

I'm pretty sure.
We never vmalloc'ed IOmem before.

Helge
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Subject: [parisc-linux] [PATCH] Fixs to work on ARM and PARIC platforms.
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Hello all,

I spend the last couple days tracking down why FUSE would not work on the
ARM and PARISC platform ... With the hints from  James Bottomley in the
"Example filesystems fail to init on parisc" thread and a fair amount of
persistence I was got a patch that works.

The patch really fixes two bugs:

1.  The rwlock tree_lock  in struct fuse was not properly initialized using
pthread_rwlock_init().    This normally works on other archs (besides
PARISC) since the lock can be initialized to 0 values, this is not true on
the PARISC platform ... these locks must be initialized properly to work on
PARISC.

2. I had to add an additional cache flush in the fuse_copy_do function.  On
both ARM and PARISC, the data was corrupted unless cache is flushed first.
Unfortunately I hit it with a very big hammer (flush_cache_all) ... I am
hoping someone more familiar with the caches will suggest a better flush
function to use.  I tried to use the flush_kernel_dcache_page and
flush_dcache_page functions without any luck :(


Hopefully this work will enable FUSE to work on these architectures in the
near future.

Thanks,

- Ryan

------=_Part_37865_6263148.1143883340132
Content-Type: text/html; charset=ISO-8859-1
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Hello all,<br><br>I spend the last couple days tracking down why FUSE would=
 not work on the ARM and PARISC platform ... With the hints from&nbsp; Jame=
s Bottomley in the &quot;Example filesystems fail to init on parisc&quot; t=
hread and a fair amount of persistence I was got a patch that works.&nbsp;=
=20
<br><br>The patch really fixes two bugs:<br><br>1.&nbsp; The rwlock tree_lo=
ck&nbsp; in struct fuse was not properly initialized using pthread_rwlock_i=
nit().&nbsp;&nbsp;&nbsp; This normally works on other archs (besides PARISC=
) since the lock can be initialized to 0 values, this is not true on the PA=
RISC platform ... these locks must be initialized properly to work on PARIS=
C.
<br><br>2. I had to add an additional cache flush in the fuse_copy_do funct=
ion.&nbsp; On both ARM and PARISC, the data was corrupted unless cache is f=
lushed first.&nbsp; Unfortunately I hit it with a very big hammer (flush_ca=
che_all) ... I am hoping someone more familiar with the caches will suggest=
 a better flush function to use.&nbsp; I tried to use the flush_kernel_dcac=
he_page and flush_dcache_page functions without any luck :(
<br><br><br>Hopefully this work will enable FUSE to work on these architect=
ures in the near future.<br><br>Thanks,<br><br>- Ryan<br>

------=_Part_37865_6263148.1143883340132--

------=_Part_37864_1435824.1143883340132
Content-Type: text/x-patch; name=fuse-kernel.patch; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-Attachment-Id: f_elhqhfpe
Content-Disposition: attachment; filename="fuse-kernel.patch"

--- fuse-2.6.0-pre2/kernel/dev.c.orig	2006-04-01 00:40:28.000000000 -0800
+++ fuse-2.6.0-pre2/kernel/dev.c	2006-04-01 00:40:43.000000000 -0800
@@ -522,6 +522,7 @@
 {
 	unsigned ncpy = min(*size, cs->len);
 	if (val) {
+		flush_cache_all();
 		if (cs->write)
 			memcpy(cs->buf, *val, ncpy);
 		else

------=_Part_37864_1435824.1143883340132
Content-Type: text/x-patch; name=fuse-lib.patch; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-Attachment-Id: f_elhqi305
Content-Disposition: attachment; filename="fuse-lib.patch"

--- fuse-2.6.0-pre2/lib/fuse.c.orig	2006-04-01 00:54:32.000000000 -0800
+++ fuse-2.6.0-pre2/lib/fuse.c	2006-04-01 00:47:48.000000000 -0800
@@ -2068,6 +2068,7 @@
     }
 
     mutex_init(&f->lock);
+    pthread_rwlock_init(&f->tree_lock, PTHREAD_RWLOCK_PREFER_READER_NP);
     memcpy(&f->op, op, op_size);
     f->compat = compat;
 

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On Sat, 2006-04-01 at 01:22 -0800, Ryan Bradetich wrote:
> --- fuse-2.6.0-pre2/kernel/dev.c.orig   2006-04-01 00:40:28.000000000
> -0800
> +++ fuse-2.6.0-pre2/kernel/dev.c        2006-04-01 00:40:43.000000000
> -0800

Is this path just wrong and you meant fs/fuse/dev.c?

In which case, the placement of the flush and the fact that
flush_dcache_page() doesn't bring coherency indicates one of the input
pages is incoherent at the user level.  So it looks like you have an
anonymous page you haven't called get_user_pages() on .... and by the
way, you have checked that you're actually using the kernel with the
parisc implementations of flush_kernel_dcache_page() and
flush_anon_page()?

James


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From: Miklos Szeredi <miklos@szeredi.hu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [fuse-devel] [PATCH] Fixs to work on ARM and
	PARIC platforms.
Date: Sat, 01 Apr 2006 18:35:38 +0200
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> 1.  The rwlock tree_lock  in struct fuse was not properly initialized using
> pthread_rwlock_init().    This normally works on other archs (besides
> PARISC) since the lock can be initialized to 0 values, this is not true on
> the PARISC platform ... these locks must be initialized properly to work on
> PARISC.

Good find, thanks.

The initialization should actually look like this:

  pthread_rwlock_init(&f->tree_lock, NULL);

I can't imagine how your version managed to work...

> 2. I had to add an additional cache flush in the fuse_copy_do function.  On
> both ARM and PARISC, the data was corrupted unless cache is flushed first.
> Unfortunately I hit it with a very big hammer (flush_cache_all) ... I am
> hoping someone more familiar with the caches will suggest a better flush
> function to use.  I tried to use the flush_kernel_dcache_page and
> flush_dcache_page functions without any luck :(

You should try using the parisc patchset from:

   http://cvs.parisc-linux.org/download/linux-2.6/

and replace flush_dcache_page() with flush_kernel_dcache_page() in
FUSE source.

Thanks,
Miklos
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From: Miklos Szeredi <miklos@szeredi.hu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [fuse-devel] Re: [parisc-linux] [PATCH] Fixs to work on ARM and
	PARIC platforms.
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> On Sat, 2006-04-01 at 01:22 -0800, Ryan Bradetich wrote:
> > --- fuse-2.6.0-pre2/kernel/dev.c.orig   2006-04-01 00:40:28.000000000
> > -0800
> > +++ fuse-2.6.0-pre2/kernel/dev.c        2006-04-01 00:40:43.000000000
> > -0800
> 
> Is this path just wrong and you meant fs/fuse/dev.c?

Yeah.  It's the out-of-tree version, which closely resembles the
in-tree one.

> In which case, the placement of the flush and the fact that
> flush_dcache_page() doesn't bring coherency indicates one of the input
> pages is incoherent at the user level.  So it looks like you have an
> anonymous page you haven't called get_user_pages() on .... and by the
> way, you have checked that you're actually using the kernel with the
> parisc implementations of flush_kernel_dcache_page() and
> flush_anon_page()?

BTW, these seem to be needed for ARM too.  Do you have any idea who I
should bug about this?  The MAINTAINERS file is far from clear on this
point.

Thanks,
Miklos
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Subject: Re: [fuse-devel] Re: [parisc-linux] [PATCH] Fixs to work on ARM
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On Sat, 2006-04-01 at 18:51 +0200, Miklos Szeredi wrote:
> BTW, these seem to be needed for ARM too.  Do you have any idea who I
> should bug about this?  The MAINTAINERS file is far from clear on this
> point.

Erm, not just arm.  The anon page problem looks like it might afflict
other incoherent architectures (like sparc and ppc); it just depends
whether their flush_dcache_page() accidentally flushes anonymous pages
or not.

For arm, it does look like the arm list won't accept postings, so I'd
send patches to Russell King <rmk@arm.linux.org.uk>

James


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Cc: parisc-linux@lists.parisc-linux.org,
 Matthew Wilcox <matthew@wil.cx>
To: Helge Deller <deller@gmx.de>
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On Sat, 2006-04-01 at 09:35 +0200, Helge Deller wrote:
> I'm pretty sure.
> We never vmalloc'ed IOmem before.

Where are you taking the ioremap virtual range from?  If it's the
vmalloc range, which is the only one I can think we have available for
arbitrary kernel mappings, then that would explain the behaviour.

James




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On Sat, 2006-04-01 at 01:22 -0800, Ryan Bradetich wrote:
> 2. I had to add an additional cache flush in the fuse_copy_do
> function.  On both ARM and PARISC, the data was corrupted unless cache
> is flushed first.  Unfortunately I hit it with a very big hammer
> (flush_cache_all) ... I am hoping someone more familiar with the
> caches will suggest a better flush function to use.  I tried to use
> the flush_kernel_dcache_page and flush_dcache_page functions without
> any luck :( 

You're right that a flush_cache_all() isn't going to be acceptable.
However, the patch is to a non-existent file, so I don't really see how
we can help unless you reduce it to a test case like the previous
copytest failures.

James


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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Strange newest LAB msg?
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Cc: parisc-linux@lists.parisc-linux.org,
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On Saturday 01 April 2006 16:30, James Bottomley wrote:
> On Sat, 2006-04-01 at 09:35 +0200, Helge Deller wrote:
> > I'm pretty sure.
> > We never vmalloc'ed IOmem before.
> 
> Where are you taking the ioremap virtual range from?  If it's the
> vmalloc range, which is the only one I can think we have available for
> arbitrary kernel mappings, then that would explain the behaviour.

Correct.
ioremap() calls get_vm_area(), which in turn gets it from __get_vm_area(size, flags, VMALLOC_START, VMALLOC_END);
VMALLOC_START seems to be at 32KB, while VMALLOC_END at around 240MB.
This means we have ~240MB of IO-Space which seems to little for the N4k.

Willy said in another mail:
> Either we're leaking vmalloc space, we allocate too much of it, or we
> need to drastically increase it the amount of it we have available.

I think Willy is right.
We probably don't leak in ioremap(), since we use the standard Linux kernel functions.
I would propose to analyze how much the 14 PCI busses wants to allocate, and if they free it correctly and if they might leak.

Might this be the culprit: 
(lba_pci.c:1216)
case PAT_PIOP:
                        /*
                        ** Postable I/O port space is per PCI host adapter.
                        ** base of 64MB PIOP region
                        */
                        lba_dev->iop_base = ioremap_nocache(p->start, 64 * 1024 * 1024);
It allocates 64MB in a loop.

Joel, can you apply the attached patch and send us the bootlog of the N4k with it ?

Helge

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Index: ioremap.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/mm/ioremap.c,v
retrieving revision 1.16
diff -u -p -r1.16 ioremap.c
--- ioremap.c	29 Mar 2006 22:18:32 -0000	1.16
+++ ioremap.c	2 Apr 2006 09:27:59 -0000
@@ -181,6 +181,9 @@ void __iomem * __ioremap(unsigned long p
 	phys_addr &= PAGE_MASK;
 	size = PAGE_ALIGN(last_addr) - phys_addr;
 
+
+	printk("IOREMAP: phys=%lx, size=%lx\n", phys_addr, size);
+
 	/*
 	 * Ok, go for it..
 	 */
@@ -193,6 +196,8 @@ void __iomem * __ioremap(unsigned long p
 		vfree(addr);
 		return NULL;
 	}
+
+	printk("IOREMAP: remapped to %p\n", addr);
 
 	return (void __iomem *) (offset + (char *)addr);
 }

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From - Thu Nov 08 21:34:32 2018
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Strange newest LAB msg?
Date: Sun, 02 Apr 2006 11:18:50 +0000
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Cc: James Bottomley <James.Bottomley@steeleye.com>,
 parisc-linux@lists.parisc-linux.org,
 Matthew Wilcox <matthew@wil.cx>
To: Helge Deller <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:23528

Hello Helge,

Helge Deller wrote:
> On Saturday 01 April 2006 16:30, James Bottomley wrote:
> 
>>On Sat, 2006-04-01 at 09:35 +0200, Helge Deller wrote:
>>
>>>I'm pretty sure.
>>>We never vmalloc'ed IOmem before.
>>
>>Where are you taking the ioremap virtual range from?  If it's the
>>vmalloc range, which is the only one I can think we have available for
>>arbitrary kernel mappings, then that would explain the behaviour.
> 
> 
> Correct.
> ioremap() calls get_vm_area(), which in turn gets it from __get_vm_area(size, flags, VMALLOC_START, VMALLOC_END);
> VMALLOC_START seems to be at 32KB, while VMALLOC_END at around 240MB.
> This means we have ~240MB of IO-Space which seems to little for the N4k.
> 
> Willy said in another mail:
> 
>>Either we're leaking vmalloc space, we allocate too much of it, or we
>>need to drastically increase it the amount of it we have available.
> 
> 
> I think Willy is right.
> We probably don't leak in ioremap(), since we use the standard Linux kernel functions.
> I would propose to analyze how much the 14 PCI busses wants to allocate, and if they free it correctly and if they might leak.
> 
> Might this be the culprit: 
> (lba_pci.c:1216)
> case PAT_PIOP:
>                         /*
>                         ** Postable I/O port space is per PCI host adapter.
>                         ** base of 64MB PIOP region
>                         */
>                         lba_dev->iop_base = ioremap_nocache(p->start, 64 * 1024 * 1024);
> It allocates 64MB in a loop.
> 
> Joel, can you apply the attached patch and send us the bootlog of the N4k with it ?
> 
> Helge

Here there are:
[snip]
Interact with IPL (Y, N, or Cancel)?> n

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.9 root@c3k Wed Jul 20 12:51:49 MDT 2005
Skipping extended partition 7 - beyond reach of IPL

Partition Start(MB) End(MB) Id Type
1               1      61   f0 Palo
2              62     306   82 swap
3             307     367   83 ext2
5             368    1953   83 ext2
6            1954    2197   83 ext2

PALO(F0) partition contains:

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=/dev/sda5 HOME=/ panic=30 profile=2 console=ttyS0 TERM=vt102 palo_kernel=3/vmlinux'
Selected kernel: /vmlinux from partition 3
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4417856 mediaptr 0x1000
Segment 1 load 00538000 size 344208 mediaptr 0x438000
Segment 2 load 00590000 size 303760 mediaptr 0x48d000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.16.1-pa10-n4kmp (root@patst006) (gcc version 4.0.3 (Debian 4.0.3-1)) #698 SMP Sun Apr 2 12:22:58 CEST 2006
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00005d30 00000491 00000000 00000002 27988e5d 100000f1 00000008 000000b2 000000b2
vers  00000301
CPUID vers 18 rev 11 (0x0000024b)
capabilities 0x1
model 9000/800/N4000-55
Memory Ranges:
  0) Start 0x0000000000000000 End 0x000000007fffffff Size   2048 MB
  1) Start 0x0000000180000000 End 0x00000001ffffffff Size   2048 MB
Total Memory: 4096 MB
SMP: bootstrap CPU ID is 0
Built 2 zonelists
Kernel command line: root=/dev/sda5 HOME=/ panic=30 profile=2 console=ttyS0 TERM=vt102 palo_kernel=3/vmlinux
kernel profiling enabled (shift: 2)
PID hash table entries: 4096 (order: 12, 131072 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
Memory: 4194304k available
Mount-cache hash table entries: 256
Brought up 1 CPUs
migration_cost=0
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Unknown machine at 0xfffffffffed25000 [37] { 0, 0x0, 0x5d3, 0x00000 }
2. Unknown machine at 0xfffffffffed2d000 [45] { 0, 0x0, 0x5d3, 0x00000 }
3. DEW BC Runway Port at 0xfffffffffed24000 [36] { 7, 0x0, 0x584, 0x0000c }
4. DEW BC Runway Port at 0xfffffffffed2c000 [44] { 7, 0x0, 0x584, 0x0000c }
5. Memory at 0xfffffffffedc0000 [192] { 1, 0x0, 0x090, 0x00009 }
6. IKE I/O BC Merced Port at 0xfffffffffed00000 [0] { 7, 0x0, 0x803, 0x0000c }
7. Elroy PCI Bridge at 0xffffffffbffe0000 [0/0] { 13, 0x0, 0x782, 0x0000a }
8. Elroy PCI Bridge at 0xffffffffbffe2000 [0/1] { 13, 0x0, 0x782, 0x0000a }
9. Elroy PCI Bridge at 0xffffffffbffe4000 [0/2] { 13, 0x0, 0x782, 0x0000a }
10. Elroy PCI Bridge at 0xffffffffbffe8000 [0/4] { 13, 0x0, 0x782, 0x0000a }
11. Elroy PCI Bridge at 0xffffffffbffea000 [0/5] { 13, 0x0, 0x782, 0x0000a }
12. Elroy PCI Bridge at 0xffffffffbfff0000 [0/8] { 13, 0x0, 0x782, 0x0000a }
13. Elroy PCI Bridge at 0xffffffffbfff4000 [0/10] { 13, 0x0, 0x782, 0x0000a }
14. Elroy PCI Bridge at 0xffffffffbfff8000 [0/12] { 13, 0x0, 0x782, 0x0000a }
15. IKE I/O BC Merced Port at 0xfffffffffed40000 [1] { 7, 0x0, 0x803, 0x0000c }
16. Elroy PCI Bridge at 0xfffffffffece0000 [1/0] { 13, 0x0, 0x782, 0x0000a }
17. Elroy PCI Bridge at 0xfffffffffece4000 [1/2] { 13, 0x0, 0x782, 0x0000a }
18. Elroy PCI Bridge at 0xfffffffffece8000 [1/4] { 13, 0x0, 0x782, 0x0000a }
19. Elroy PCI Bridge at 0xfffffffffecf0000 [1/8] { 13, 0x0, 0x782, 0x0000a }
20. Elroy PCI Bridge at 0xfffffffffecf4000 [1/10] { 13, 0x0, 0x782, 0x0000a }
21. Elroy PCI Bridge at
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
        ON       OFF           OFF       ON         ON
LED State: System running normally.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
Releasing cpu 1 now, hpa=fffffffffed2d000
FP[1] enabled: Rev 1 Model 16
migration_cost=1000
CPU(s): 2 x PA8600 (PCX-W+) at 550.000000 MHz
Setting cache flush threshold to ad700 (2 CPUs online)
IOREMAP: phys=fffffffffed00000, size=1000
IOREMAP: remapped to 0000000000008000
SBA found Ike rev 2 at 0xfffffffffed00000
IOREMAP: phys=fffffffffed02000, size=1000
IOREMAP: remapped to 000000000000a000
IOREMAP: phys=fffffffffed03000, size=1000
IOREMAP: remapped to 000000000000c000
IOREMAP: phys=ffffffffbffe0000, size=1000
IOREMAP: remapped to 000000000000e000
IOREMAP: phys=ffffffffbffe2000, size=1000
IOREMAP: remapped to 0000000000010000
IOREMAP: phys=ffffffffbffe4000, size=1000
IOREMAP: remapped to 0000000000012000
IOREMAP: phys=ffffffffbffe8000, size=1000
IOREMAP: remapped to 0000000000014000
IOREMAP: phys=ffffffffbffea000, size=1000
IOREMAP: remapped to 0000000000016000
IOREMAP: phys=ffffffffbfff0000, size=1000
IOREMAP: remapped to 0000000000018000
IOREMAP: phys=ffffffffbfff4000, size=1000
IOREMAP: remapped to 000000000001a000
IOREMAP: phys=ffffffffbfff8000, size=1000
IOREMAP: remapped to 000000000001c000
IOREMAP: phys=fffffffffed40000, size=1000
IOREMAP: remapped to 000000000001e000
SBA found Ike rev 2 at 0xfffffffffed40000
IOREMAP: phys=fffffffffed42000, size=1000
IOREMAP: remapped to 0000000000020000
IOREMAP: phys=fffffffffed43000, size=1000
IOREMAP: remapped to 0000000000022000
IOREMAP: phys=fffffffffece0000, size=1000
IOREMAP: remapped to 0000000000024000
IOREMAP: phys=fffffffffece4000, size=1000
IOREMAP: remapped to 0000000000026000
IOREMAP: phys=fffffffffece8000, size=1000
IOREMAP: remapped to 0000000000028000
IOREMAP: phys=fffffffffecf0000, size=1000
IOREMAP: remapped to 000000000002a000
IOREMAP: phys=fffffffffecf4000, size=1000
IOREMAP: remapped to 000000000002c000
IOREMAP: phys=fffffffffecf8000, size=1000
IOREMAP: remapped to 000000000002e000
IOREMAP: phys=ffffffffbffe0000, size=1000
IOREMAP: remapped to 0000000000030000
LBA version TR4.0 (0x5) found at 0xffffffffbffe0000
IOREMAP: phys=ffffffffbffe0000, size=2000
IOREMAP: remapped to 0000000000034000
IOREMAP: phys=fffffff000000000, size=4000000
IOREMAP: remapped to 0000000000080000
iosapic: no IRTE for 0000:00:04.0 (IRQ not connected?)
IOREMAP: phys=ffffffffbffe2000, size=1000
IOREMAP: remapped to 0000000000032000
LBA version TR4.0 (0x5) found at 0xffffffffbffe2000
IOREMAP: phys=ffffffffbffe2000, size=2000
IOREMAP: remapped to 0000000000038000
IOREMAP: phys=fffffff080000000, size=4000000
IOREMAP: remapped to 0000000004100000
IOREMAP: phys=ffffffffbffe4000, size=1000
IOREMAP: remapped to 000000000003c000
LBA version TR4.0 (0x5) found at 0xffffffffbffe4000
IOREMAP: phys=ffffffffbffe4000, size=2000
IOREMAP: remapped to 0000000000040000
IOREMAP: phys=fffffff100000000, size=4000000
IOREMAP: remapped to 0000000008180000
IOREMAP: phys=ffffffffbffe8000, size=1000
IOREMAP: remapped to 000000000003e000
LBA version TR4.0 (0x5) found at 0xffffffffbffe8000
IOREMAP: phys=ffffffffbffe8000, size=2000
IOREMAP: remapped to 0000000000044000
IOREMAP: phys=fffffff200000000, size=4000000
allocation failed: out of vmalloc space - use vmalloc=<size> to increase size.
IOREMAP: phys=ffffffffbffea000, size=1000
IOREMAP: remapped to 0000000000048000
LBA version TR4.0 (0x5) found at 0xffffffffbffea000
IOREMAP: phys=ffffffffbffea000, size=2000
IOREMAP: remapped to 000000000004c000
IOREMAP: phys=fffffff280000000, size=4000000
allocation failed: out of vmalloc space - use vmalloc=<size> to increase size.
IOREMAP: phys=ffffffffbfff0000, size=1000
IOREMAP: remapped to 000000000004a000
LBA version TR4.0 (0x5) found at 0xffffffffbfff0000
IOREMAP: phys=ffffffffbfff0000, size=2000
IOREMAP: remapped to 0000000000050000
IOREMAP: phys=fffffff400000000, size=4000000
allocation failed: out of vmalloc space - use vmalloc=<size> to increase size.
IOREMAP: phys=ffffffffbfff4000, size=1000
IOREMAP: remapped to 0000000000054000
LBA version TR4.0 (0x5) found at 0xffffffffbfff4000
IOREMAP: phys=ffffffffbfff4000, size=2000
IOREMAP: remapped to 0000000000058000
IOREMAP: phys=fffffff500000000, size=4000000
allocation failed: out of vmalloc space - use vmalloc=<size> to increase size.
IOREMAP: phys=ffffffffbfff8000, size=1000
IOREMAP: remapped to 0000000000056000
LBA version TR4.0 (0x5) found at 0xffffffffbfff8000
IOREMAP: phys=ffffffffbfff8000, size=2000
IOREMAP: remapped to 000000000005c000
IOREMAP: phys=fffffff600000000, size=4000000
allocation failed: out of vmalloc space - use vmalloc=<size> to increase size.
IOREMAP: phys=fffffffffece0000, size=1000
IOREMAP: remapped to 0000000000060000
LBA version TR4.0 (0x5) found at 0xfffffffffece0000
IOREMAP: phys=fffffffffece0000, size=2000
IOREMAP: remapped to 0000000000064000
IOREMAP: phys=fffffff800000000, size=4000000
allocation failed: out of vmalloc space - use vmalloc=<size> to increase size.
IOREMAP: phys=fffffffffece4000, size=1000
IOREMAP: remapped to 0000000000062000
LBA version TR4.0 (0x5) found at 0xfffffffffece4000
IOREMAP: phys=fffffffffece4000, size=2000
IOREMAP: remapped to 0000000000068000
IOREMAP: phys=fffffff900000000, size=4000000
allocation failed: out of vmalloc space - use vmalloc=<size> to increase size.
IOREMAP: phys=fffffffffece8000, size=1000
IOREMAP: remapped to 000000000006c000
LBA version TR4.0 (0x5) found at 0xfffffffffece8000
IOREMAP: phys=fffffffffece8000, size=2000
IOREMAP: remapped to 0000000000070000
IOREMAP: phys=fffffffa00000000, size=4000000
allocation failed: out of vmalloc space - use vmalloc=<size> to increase size.
IOREMAP: phys=fffffffffecf0000, size=1000
IOREMAP: remapped to 000000000006e000
LBA version TR4.0 (0x5) found at 0xfffffffffecf0000
IOREMAP: phys=fffffffffecf0000, size=2000
IOREMAP: remapped to 0000000000074000
IOREMAP: phys=fffffffc00000000, size=4000000
allocation failed: out of vmalloc space - use vmalloc=<size> to increase size.
IOREMAP: phys=fffffffffecf4000, size=1000
IOREMAP: remapped to 0000000000078000
LBA version TR4.0 (0x5) found at 0xfffffffffecf4000
IOREMAP: phys=fffffffffecf4000, size=2000
IOREMAP: remapped to 000000000007c000
IOREMAP: phys=fffffffd00000000, size=4000000
allocation failed: out of vmalloc space - use vmalloc=<size> to increase size.
IOREMAP: phys=fffffffffecf8000, size=1000
IOREMAP: remapped to 000000000007a000
LBA version TR4.0 (0x5) found at 0xfffffffffecf8000
IOREMAP: phys=fffffffffecf8000, size=2000
IOREMAP: remapped to 0000000004084000
IOREMAP: phys=fffffffe00000000, size=4000000
SCSI subsystem initialized
unwind_init: start = 0x10451cc0, end = 0x10472e30, entries = 8471
Performance monitoring counters enabled for Unknown machine
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler deadline registered
io scheduler cfq registered
PDC Stable Storage facility v0.22
Soft power switch support not available.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
IOREMAP: phys=ffffffff80000000, size=1000
IOREMAP: remapped to 0000000004082000
0000:00:04.1: ttyS0 at MMIO 0xffffffff80000000 (irq = 22) is a 16550A
0000:00:04.1: ttyS1 at MMIO 0xffffffff80000008 (irq = 22) is a 16450
0000:00:04.1: ttyS2 at MMIO 0xffffffff80000010 (irq = 22) is a 16550A
0000:00:04.1: ttyS3 at MMIO 0xffffffff80000030 (irq = 22) is a 16550A
Couldn't register serial port 0000:00:04.1: -28
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 1.1.13 (December 15, 2004)
IOREMAP: phys=ffffffff80003000, size=1000
IOREMAP: remapped to 0000000004088000
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21142/DS21143 Tulip rev 65 at 0000000004088000, 00:30:6E:1C:B2:0B, IRQ 18.
IOREMAP: phys=ffffffff8a040000, size=1000
IOREMAP: remapped to 000000000408a000
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.
eth1: Digital DS21142/DS21143 Tulip rev 65 at 000000000408a000, 00:30:6E:21:14:B4, IRQ 24.
IOREMAP: phys=ffffffff80080000, size=1000
IOREMAP: remapped to 000000000408c000
IOREMAP: phys=ffffffff80100000, size=1000
IOREMAP: remapped to 000000000408e000
sym0: <895> rev 0x1 at pci 0000:00:01.0 irq 19
sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
sym0: SCSI BUS mode change from SE to SE.
scsi0 : sym-2.2.2
sym0: SCSI BUS has been reset.
   Vendor: HP        Model: DVD-ROM 305       Rev: 1.01
   Type:   CD-ROM                             ANSI SCSI revision: 02
  target0:0:1: Beginning Domain Validation
  target0:0:1: asynchronous
  target0:0:1: FAST-20 SCSI 20.0 MB/s ST (50 ns, offset 16)
  target0:0:1: Domain Validation skipping write tests
  target0:0:1: Ending Domain Validation
   Vendor: HP        Model: C1537A            Rev: L105
   Type:   Sequential-Access                  ANSI SCSI revision: 02
  target0:0:3: Beginning Domain Validation
  target0:0:3: asynchronous
  target0:0:3: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 31)
  target0:0:3: Domain Validation skipping write tests
  target0:0:3: Ending Domain Validation
   Vendor: SEAGATE   Model: ST39103LW         Rev: HP04
   Type:   Direct-Access                      ANSI SCSI revision: 02
  target0:0:8: tagged command queuing enabled, command queue depth 16.
  target0:0:8: Beginning Domain Validation
  target0:0:8: asynchronous
  target0:0:8: wide asynchronous
  target0:0:8: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
  target0:0:8: Domain Validation skipping write tests
  target0:0:8: Ending Domain Validation
IOREMAP: phys=ffffffff80004000, size=1000
IOREMAP: remapped to 0000000004090000
IOREMAP: phys=ffffffff80001000, size=1000
IOREMAP: remapped to 0000000004092000
sym1: <875> rev 0x37 at pci 0000:00:02.0 irq 20
sym1: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.2.2
IOREMAP: phys=ffffffff80005000, size=1000
IOREMAP: remapped to 0000000004094000
IOREMAP: phys=ffffffff80002000, size=1000
IOREMAP: remapped to 0000000004096000
sym2: <875> rev 0x37 at pci 0000:00:02.1 irq 21
sym2: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
sym2: SCSI BUS has been reset.
scsi2 : sym-2.2.2
st: Version 20050830, fixed bufsize 32768, s/g segs 256
st 0:0:3:0: Attached scsi tape st0<4>st0: try direct i/o: yes (alignment 512 B)
SCSI device sda: 17783112 512-byte hdwr sectors (9105 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write back w/ FUA
SCSI device sda: 17783112 512-byte hdwr sectors (9105 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write back w/ FUA
  sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 >
sd 0:0:8:0: Attached scsi disk sda
sr0: scsi3-mmc drive: 16x/40x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.20
sr 0:0:1:0: Attached scsi generic sg0 type 5
st 0:0:3:0: Attached scsi generic sg1 type 1
sd 0:0:8:0: Attached scsi generic sg2 type 0
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
NET: Registered protocol family 2
IP route cache hash table entries: 262144 (order: 9, 2097152 bytes)
TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: Badness in smp_call_function at /usr/src/linux-2.6.16.1-pa10/arch/parisc/kernel/smp.c:348
Backtrace:
  [<0000000010112900>] dump_stack+0x18/0x28
  [<000000001011d9b4>] smp_call_function+0x37c/0x3c0
  [<0000000010111c5c>] flush_data_cache+0x2c/0x48
  [<00000000101109a8>] free_initmem+0x68/0x2f8
  [<000000001010fb20>] init+0x858/0x8c8
  [<000000001010347c>] ret_from_kernel_
********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
        ON       OFF           OFF       ON         ON
LED State: System running normally.

processor                 system initialization      1C00

*****************************************
[snip]

(this latest 'Badness in smp_call_function ...' was there but seems to be harmless and the boot continue without showing any more 
IOREMAP info ;-) )

Hth,
	Joel

PS: btw, rm CONFIG_DETECT_SOFTLOCKUP in the config doesn't help on this system ;<(:
still hanging (this time without Softlockup msg) after only:
top - 09:04:58 up 1 day, 16:26,  3 users,  load average: 2.40, 2.26, 2.20



From - Thu Nov 08 21:34:32 2018
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Subject: Re: [parisc-linux] "BUG: soft lockup detected on CPU#0" on recent
	64bit 	k-2.6.16 (up or smp)
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Xref: news.gmane.org gmane.linux.ports.parisc:23529



Joel Soete wrote:
> Hello pa*,
> 
> [snip]
> 
>>also noticed on n4k runing k-2.6.16-pa0 64bit smp kernel:
>>BUG: soft lockup detected on CPU#0!
>>
> 
> [...]
> 
>> IAOQ[0]: _read_lock+0x18/0x30
>> IAOQ[1]: _read_lock+0x8/0x30
>> RP(r2): send_group_sig_info+0x3c/0xb0
>>
> 
> This kind of hung re-occured on this n4k (64bit smp kernel 2.6.16-pa8);
> 
> I just grab the piminfo but useless:
> [...]
> Parse IAOQ = 0x000000ffff80ff3c for CPU[1]
> 
> Func: _end, Off: 0xffef1f1244, Addr: 0xffff80ff3c
> [...]
> 
> Parse IAOQ = 0x00000000000006c4 for CPU[3]
> 
> [...]
> 
> Sorry,
>     Joel
> 
> PS: I just start the same test but without CONFIG_DETECT_SOFTLOCKUP :<?
> 
well never the less system still hanging after only:
top - 09:04:58 up 1 day, 16:26,  3 users,  load average: 2.40, 2.26, 2.20

training the same test (kernel build in loop)
(just this time without "BUG: soft lockup detected on CPU#0!" msg?)

Thanks,
	Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:23530

On Sunday 02 April 2006 13:18, Joel Soete wrote:
> > On Saturday 01 April 2006 16:30, James Bottomley wrote:
> >>On Sat, 2006-04-01 at 09:35 +0200, Helge Deller wrote:
> >>>I'm pretty sure.
> >>>We never vmalloc'ed IOmem before.
> >>
> >>Where are you taking the ioremap virtual range from?  If it's the
> >>vmalloc range, which is the only one I can think we have available for
> >>arbitrary kernel mappings, then that would explain the behaviour.
> > 
> > 
> > Correct.
> > ioremap() calls get_vm_area(), which in turn gets it from __get_vm_area(size, flags, VMALLOC_START, VMALLOC_END);
> > VMALLOC_START seems to be at 32KB, while VMALLOC_END at around 240MB.
> > This means we have ~240MB of IO-Space which seems to little for the N4k.
> > 
> > Willy said in another mail:
> > 
> >>Either we're leaking vmalloc space, we allocate too much of it, or we
> >>need to drastically increase it the amount of it we have available.
> > 
> > 
> > I think Willy is right.
> > We probably don't leak in ioremap(), since we use the standard Linux kernel functions.
> > I would propose to analyze how much the 14 PCI busses wants to allocate, and if they free it correctly and if they might leak.
> > 
> > Might this be the culprit: 
> > (lba_pci.c:1216)
> > case PAT_PIOP:
> >                         /*
> >                         ** Postable I/O port space is per PCI host adapter.
> >                         ** base of 64MB PIOP region
> >                         */
> >                         lba_dev->iop_base = ioremap_nocache(p->start, 64 * 1024 * 1024);
> > It allocates 64MB in a loop.


LOG ANALYSIS:

> Setting cache flush threshold to ad700 (2 CPUs online)
> IOREMAP: phys=fffffffffed00000, size=1000
> IOREMAP: remapped to 0000000000008000	STARTING HERE
> SBA found Ike rev 2 at 0xfffffffffed00000
> IOREMAP: phys=fffffffffed02000, size=1000
> IOREMAP: remapped to 000000000000a000	OK, includes 4k filler
> [...]
> LBA version TR4.0 (0x5) found at 0xffffffffbffe0000
> IOREMAP: phys=ffffffffbffe0000, size=2000
> IOREMAP: remapped to 0000000000034000
> IOREMAP: phys=fffffff000000000, size=4000000	THIS IS THE 64MB ioremap() (see above)
> IOREMAP: remapped to 0000000000080000		OK.
> iosapic: no IRTE for 0000:00:04.0 (IRQ not connected?)
> IOREMAP: phys=ffffffffbffe2000, size=1000
> IOREMAP: remapped to 0000000000032000		FILLS up in-between.
> LBA version TR4.0 (0x5) found at 0xffffffffbffe2000
> IOREMAP: phys=ffffffffbffe2000, size=2000
> IOREMAP: remapped to 0000000000038000
> IOREMAP: phys=fffffff080000000, size=4000000	THE NEXT 64MB
> IOREMAP: remapped to 0000000004100000		OK.
> IOREMAP: phys=ffffffffbffe4000, size=1000
> IOREMAP: remapped to 000000000003c000
> LBA version TR4.0 (0x5) found at 0xffffffffbffe4000
> IOREMAP: phys=ffffffffbffe4000, size=2000
> IOREMAP: remapped to 0000000000040000
> IOREMAP: phys=fffffff100000000, size=4000000	ANOTHER 64MB
> IOREMAP: remapped to 0000000008180000		WE ARE NOW at 008180000
> IOREMAP: phys=ffffffffbffe8000, size=1000
> IOREMAP: remapped to 000000000003e000
> LBA version TR4.0 (0x5) found at 0xffffffffbffe8000
> IOREMAP: phys=ffffffffbffe8000, size=2000
> IOREMAP: remapped to 0000000000044000		THIS SMALL ONE IS STILL OK.
> IOREMAP: phys=fffffff200000000, size=4000000	BUT THIS BIG 64MB CHUNK FAILS.
> allocation failed: out of vmalloc space - use vmalloc=<size> to increase size.
> IOREMAP: phys=ffffffffbffea000, size=1000
> IOREMAP: remapped to 0000000000048000		OTHER SMALLER ONES OK AGAIN..
> LBA version TR4.0 (0x5) found at 0xffffffffbffea000

So, the problem is really the 64MB ioremap() from lba_pci.c:1216.
Grant, Willy, ... : Is it possible to reduce it or to iounmap() it again ?


> EXT3-fs: mounted filesystem with ordered data mode.
> VFS: Mounted root (ext3 filesystem) readonly.
> Freeing unused kernel memory: Badness in smp_call_function at /usr/src/linux-2.6.16.1-pa10/arch/parisc/kernel/smp.c:348
> Backtrace:
>   [<0000000010112900>] dump_stack+0x18/0x28
>   [<000000001011d9b4>] smp_call_function+0x37c/0x3c0
>   [<0000000010111c5c>] flush_data_cache+0x2c/0x48
>   [<00000000101109a8>] free_initmem+0x68/0x2f8
>   [<000000001010fb20>] init+0x858/0x8c8
>   [<000000001010347c>] ret_from_kernel_
> (this latest 'Badness in smp_call_function ...' was there but seems to be harmless and the boot continue without showing any more 
> IOREMAP info ;-) )

WHAT'S THAT ?
Do we have some __init too much ?
I never tested SMP.


> PS: btw, rm CONFIG_DETECT_SOFTLOCKUP in the config doesn't help on this system ;<(:
> still hanging (this time without Softlockup msg) after only:
> top - 09:04:58 up 1 day, 16:26,  3 users,  load average: 2.40, 2.26, 2.20

I think the softlockups don't really matter.
Does your box hangs without SMP as well ?

Helge
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On Sun, 2006-04-02 at 10:45 +0200, Miklos Szeredi wrote:
> I'm confused.  What was the exact reason for having a separate
> function for anon pages?  Wouldn't unifying the functionality of
> flush_dcache_page() and flush_anon_page() make more sense?

No because flush_dcache_page() is designed for filesystems, which should
never see anonymous pages.

> Otherwise sparc and ppc would have to check PageAnon() from both
> flush_dcache_page() and flush_anon_page() and call a common function,
> which seems to just complicate things without any gain.

I don't think what you propose is desirable or possible:
flush_dcache_pages() is designed not to have to flush them (it can't
actually because it can't find them properly) but it may flush them by
accident if they get swept up into the implementation.  Sparc and PPC
are CAM flushing implementations, so I suspect the cache just needs to
be asked to flush a single physical address and it will find all the
virtual aliases and flush them (including the anonymous pages).

James


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Helge Deller wrote:
> On Sunday 02 April 2006 13:18, Joel Soete wrote:
> 
[snip]
> 
>>EXT3-fs: mounted filesystem with ordered data mode.
>>VFS: Mounted root (ext3 filesystem) readonly.
>>Freeing unused kernel memory: Badness in smp_call_function at /usr/src/linux-2.6.16.1-pa10/arch/parisc/kernel/smp.c:348
>>Backtrace:
>>  [<0000000010112900>] dump_stack+0x18/0x28
>>  [<000000001011d9b4>] smp_call_function+0x37c/0x3c0
>>  [<0000000010111c5c>] flush_data_cache+0x2c/0x48
>>  [<00000000101109a8>] free_initmem+0x68/0x2f8
>>  [<000000001010fb20>] init+0x858/0x8c8
>>  [<000000001010347c>] ret_from_kernel_
>>(this latest 'Badness in smp_call_function ...' was there but seems to be harmless and the boot continue without showing any more 
>>IOREMAP info ;-) )
> 
> 
> WHAT'S THAT ?
> Do we have some __init too much ?
     337 smp_call_function (void (*func) (void *info), void *info, int retry, int wait)
     338 {
     339         struct smp_call_struct data;
     340         unsigned long timeout;
     341         static DEFINE_SPINLOCK(lock);
     342         int retries = 0;
     343
     344         if (num_online_cpus() < 2)
     345                 return 0;
     346
     347         /* Can deadlock when called with interrupts disabled */
     348         WARN_ON(irqs_disabled());
     349

> I never tested SMP.
> 
No pb ;-)

> 
> 
>>PS: btw, rm CONFIG_DETECT_SOFTLOCKUP in the config doesn't help on this system ;<(:
>>still hanging (this time without Softlockup msg) after only:
>>top - 09:04:58 up 1 day, 16:26,  3 users,  load average: 2.40, 2.26, 2.20
> 
> 
> I think the softlockups don't really matter.
> Does your box hangs without SMP as well ?
> 
well it did with b2k and n4k runing 64bit kernel with CONFIG_DETECT_SOFTLOCKUP=y && # CONFIG_SMP is not set

but I need to verify now without CONFIG_DETECT_SOFTLOCKUP.
(sorry I couldn't do it now but tomorrow morming; ok?

Thanks,
	Joel



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On Sun, Apr 02, 2006 at 03:15:04PM +0200, Helge Deller wrote:
...
> > IOREMAP: phys=fffffff200000000, size=4000000	BUT THIS BIG 64MB CHUNK FAILS.
> > allocation failed: out of vmalloc space - use vmalloc=<size> to increase size.
> > IOREMAP: phys=ffffffffbffea000, size=1000
> > IOREMAP: remapped to 0000000000048000		OTHER SMALLER ONES OK AGAIN..
> > LBA version TR4.0 (0x5) found at 0xffffffffbffea000
> 
> So, the problem is really the 64MB ioremap() from lba_pci.c:1216.
> Grant, Willy, ... : Is it possible to reduce it or to iounmap() it again ?

Unfortunately not. Not unless you want to disable IO Port space access.
Each PCI bus controller routes 64MB of GMMIO space to 64KB of IO port space.
The first 4 bytes of each page maps to a unique 4 byte in IO Port space.

On Astro platforms, we can use 64KB in LMMIO space to access
IO Port space for all busses. The difference is Astro only
has one SBA and IOC. N-class has two. There's more to this
and I'm not sure of all the details at the moment.

240MB is clearly not going to be enough on that machine.
Even on a "normal" machine, a couple of graphics cards
would exhaust the 240MB.  A single infiniband card could
exhaust the 240MB space we have now.

hth,
grant



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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] Strange newest LAB msg?
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Cc: Helge Deller <deller@gmx.de>,
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To: Grant Grundler <grundler@parisc-linux.org>
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On Sun, Apr 02, 2006 at 07:28:31PM -0600, Grant Grundler wrote:
> > So, the problem is really the 64MB ioremap() from lba_pci.c:1216.
> > Grant, Willy, ... : Is it possible to reduce it or to iounmap() it again ?
> 
> Unfortunately not. Not unless you want to disable IO Port space access.
> Each PCI bus controller routes 64MB of GMMIO space to 64KB of IO port space.
> The first 4 bytes of each page maps to a unique 4 byte in IO Port space.
> 
> On Astro platforms, we can use 64KB in LMMIO space to access
> IO Port space for all busses. The difference is Astro only
> has one SBA and IOC. N-class has two. There's more to this
> and I'm not sure of all the details at the moment.
> 
> 240MB is clearly not going to be enough on that machine.
> Even on a "normal" machine, a couple of graphics cards
> would exhaust the 240MB.  A single infiniband card could
> exhaust the 240MB space we have now.

I think using page tables to map IO Port space isn't really necessary.
We can use the (slightly inappropriately named) gsc_read/writeX to access
that area.

Also, there should be loads of virtual memory space available to us with
a 64-bit kernel, and we should definitely look at increasing the amount
of vmalloc space available with 64-bit.



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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Strange newest LAB msg?
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Hello Helge,

> 
> 
> Helge Deller wrote:
> > On Sunday 02 April 2006 13:18, Joel Soete wrote:
> > 
[snip]
> > 
> >>PS: btw, rm CONFIG_DETECT_SOFTLOCKUP in the config doesn't help on th=
is
system ;<(:
> >>still hanging (this time without Softlockup msg) after only:
> >>top - 09:04:58 up 1 day, 16:26,  3 users,  load average: 2.40, 2.26, =
2.20
> > 
> > 
> > I think the softlockups don't really matter.
> > Does your box hangs without SMP as well ?
> > 
> well it did with b2k and n4k runing 64bit kernel with
CONFIG_DETECT_SOFTLOCKUP=3Dy && # CONFIG_SMP is not set
> 
> but I need to verify now without CONFIG_DETECT_SOFTLOCKUP.
> (sorry I couldn't do it now but tomorrow morming; ok?
> 
Unfortunately, this test (kernel 2.6.16-pa10 up and wiythout
CONFIG_DETECT_SOFTLOCKUP) finished earlier then expected: i.e. the system=
 also
hang up after just few hours of build loop ;<(

Joel=0A=0A---------------------------------------------------------------=
=0AA free anti-spam and anti-virus filter on all Scarlet mailboxes=0AMore=
 info on http://www.scarlet.be/



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From: Miklos Szeredi <miklos@szeredi.hu>
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Subject: Re: [fuse-devel] Re: [parisc-linux] [PATCH] Fixs to work on ARM
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> > Otherwise sparc and ppc would have to check PageAnon() from both
> > flush_dcache_page() and flush_anon_page() and call a common function,
> > which seems to just complicate things without any gain.
> 
> I don't think what you propose is desirable or possible:
> flush_dcache_pages() is designed not to have to flush them (it can't
> actually because it can't find them properly)

I see now, that flush_anon_page() also gets the virtual address.

Pardon my ignorance, but I'm still not getting the whole picture.

Current (with your API updates) get_user_pages() does the following on
PARISC:

  flush_anon_page():

    - If page is anonymous, the the user address is flushed which was
      passed to get_user_pages().

  flush_dcache_page():
     - The kernel address is flushed regardless whether the page is
       anonymous or not

     - If the page is file backed, then all user addresses refering to
       the page are flushed

Why this discrepancy between anonymous and file backed pages?
Wounldn't it be enough for file backed pages too to flush only one
user address?

Added to the mix are copy_to/from_user_page() which already seem to do
the above, and are used in combination with get_user_pages() which
results in multiple redundant cache flushes.  Not too clean, is it?

Thanks,
Miklos
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Subject: Re: [parisc-linux] IOGear Firewire+USB card causes unexpected irq 2
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Just curious if anyone might have any thoughts or suggestions? I'd be
quite interested; thanks!


On Thu, Mar 30, 2006 at 12:02:02AM -0800, Chris Frost wrote:
> On Wed, Mar 29, 2006 at 08:58:38AM -0500, Kyle McMartin wrote:
> > lspci -vn for the card, please...
> 
> Attached (pci) is the output of lspci -vvv. The vendor and device codes
> are immediately below. As the machine does not boot with the card in the
> lspci output is from a pc.
> 
> 0:d.0: class 604, vendor id 3388, pci id 0021, rev 13
> 1:c.0: class 0c03, vendor id 1033, pci id 0035, rev 41
> 1:c.1: class 0c03, vendor id 1033, pci id 0035, rev 41
> 1:c.2: class 0c03, vendor id 1033, pci id 00e0, rev 2
> 1:f.0: class 0c00, vendor id 1003, pci id 00f2, rev 1
> 
> 
> > Try commenting out 
> > 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_USB) },
> > 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415) },
> > in superio.c and seeing if that helps at all.
> 
> This change appears to have no effect.
> 
> 
> Max suggested checking the machine's firmware version. It was running 3.4.
> I upgraded the machine to the latest, 5.0, but this has no visible effect.
> 
> 
> Since 2.6.16-pa9 was released today I also upgraded to it, but with no
> visible change.
> 
> thanks again,
> -- 
> Chris Frost  |  <http://www.frostnet.net/chris/>
> -------------+----------------------------------
> Public PGP Key:
>    Email chris@frostnet.net with the subject "retrieve pgp key"
>    or visit <http://www.frostnet.net/chris/about/pgp_key.phtml>

> 00:0d.0 PCI bridge: Hint Corp: Unknown device 0021 (rev 13) (prog-if 00 [Normal decode])
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> 	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> 	Latency: 66, cache line size 08
> 	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
> 	I/O behind bridge: 0000f000-00000fff
> 	Memory behind bridge: ff900000-ff9fffff
> 	Prefetchable memory behind bridge: 00000000ff800000-00000000ff800000
> 	BridgeCtl: Parity+ SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
> 	Capabilities: [80] Power Management version 2
> 		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
> 		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> 		Bridge: PM- B3+
> 	Capabilities: [90] #06 [0000]
> 	Capabilities: [a0] Vital Product Data
> 
> 01:0c.0 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
> 	Subsystem: Unknown device 1735:0035
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> 	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> 	Latency: 64 (250ns min, 10500ns max), cache line size 08
> 	Interrupt: pin A routed to IRQ 7
> 	Region 0: Memory at ff9fc000 (32-bit, non-prefetchable) [size=4K]
> 	Capabilities: [40] Power Management version 2
> 		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
> 		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> 
> 01:0c.1 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
> 	Subsystem: Unknown device 1735:0035
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> 	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> 	Latency: 64 (250ns min, 10500ns max), cache line size 08
> 	Interrupt: pin B routed to IRQ 5
> 	Region 0: Memory at ff9fd000 (32-bit, non-prefetchable) [size=4K]
> 	Capabilities: [40] Power Management version 2
> 		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
> 		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> 
> 01:0c.2 USB Controller: NEC Corporation: Unknown device 00e0 (rev 02) (prog-if 20)
> 	Subsystem: Unknown device 1735:00e1
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> 	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> 	Latency: 64 (4000ns min, 8500ns max), cache line size 08
> 	Interrupt: pin C routed to IRQ 11
> 	Region 0: Memory at ff9fec00 (32-bit, non-prefetchable) [size=256]
> 	Capabilities: [40] Power Management version 2
> 		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
> 		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> 
> 01:0f.0 FireWire (IEEE 1394): NEC Corporation: Unknown device 00f2 (rev 01) (prog-if 10 [OHCI])
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> 	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> 	Latency: 64 (63750ns min, 63750ns max), cache line size 08
> 	Interrupt: pin A routed to IRQ 9
> 	Region 0: Memory at ff9ff000 (32-bit, non-prefetchable) [size=4K]
> 	Capabilities: [60] Power Management version 2
> 		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
> 		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
Chris Frost  |  <http://www.frostnet.net/chris/>
-------------+----------------------------------
Public PGP Key:
   Email chris@frostnet.net with the subject "retrieve pgp key"
   or visit <http://www.frostnet.net/chris/about/pgp_key.phtml>
_______________________________________________
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Xref: news.gmane.org gmane.linux.ports.parisc:23538

01:0f.0 FireWire (IEEE 1394): NEC Corporation: Unknown device 00f2 (rev 01) (prog-if 10 [OHCI])
says:	Interrupt: pin A routed to IRQ 9

Do you have CONFIG_EISA and/or CONFIG_ISA enabled ?
If yes, try without...

Helge

On Tuesday 04 April 2006 05:34, Chris Frost wrote:
> Just curious if anyone might have any thoughts or suggestions? I'd be
> quite interested; thanks!
> 
> 
> On Thu, Mar 30, 2006 at 12:02:02AM -0800, Chris Frost wrote:
> > On Wed, Mar 29, 2006 at 08:58:38AM -0500, Kyle McMartin wrote:
> > > lspci -vn for the card, please...
> > 
> > Attached (pci) is the output of lspci -vvv. The vendor and device codes
> > are immediately below. As the machine does not boot with the card in the
> > lspci output is from a pc.
> > 
> > 0:d.0: class 604, vendor id 3388, pci id 0021, rev 13
> > 1:c.0: class 0c03, vendor id 1033, pci id 0035, rev 41
> > 1:c.1: class 0c03, vendor id 1033, pci id 0035, rev 41
> > 1:c.2: class 0c03, vendor id 1033, pci id 00e0, rev 2
> > 1:f.0: class 0c00, vendor id 1003, pci id 00f2, rev 1
> > 
> > 
> > > Try commenting out 
> > > 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_USB) },
> > > 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415) },
> > > in superio.c and seeing if that helps at all.
> > 
> > This change appears to have no effect.
> > 
> > 
> > Max suggested checking the machine's firmware version. It was running 3.4.
> > I upgraded the machine to the latest, 5.0, but this has no visible effect.
> > 
> > 
> > Since 2.6.16-pa9 was released today I also upgraded to it, but with no
> > visible change.
> > 
> > thanks again,
> > -- 
> > Chris Frost  |  <http://www.frostnet.net/chris/>
> > -------------+----------------------------------
> > Public PGP Key:
> >    Email chris@frostnet.net with the subject "retrieve pgp key"
> >    or visit <http://www.frostnet.net/chris/about/pgp_key.phtml>
> 
> > 00:0d.0 PCI bridge: Hint Corp: Unknown device 0021 (rev 13) (prog-if 00 [Normal decode])
> > 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> > 	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> > 	Latency: 66, cache line size 08
> > 	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
> > 	I/O behind bridge: 0000f000-00000fff
> > 	Memory behind bridge: ff900000-ff9fffff
> > 	Prefetchable memory behind bridge: 00000000ff800000-00000000ff800000
> > 	BridgeCtl: Parity+ SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
> > 	Capabilities: [80] Power Management version 2
> > 		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
> > 		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> > 		Bridge: PM- B3+
> > 	Capabilities: [90] #06 [0000]
> > 	Capabilities: [a0] Vital Product Data
> > 
> > 01:0c.0 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
> > 	Subsystem: Unknown device 1735:0035
> > 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> > 	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> > 	Latency: 64 (250ns min, 10500ns max), cache line size 08
> > 	Interrupt: pin A routed to IRQ 7
> > 	Region 0: Memory at ff9fc000 (32-bit, non-prefetchable) [size=4K]
> > 	Capabilities: [40] Power Management version 2
> > 		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
> > 		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> > 
> > 01:0c.1 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
> > 	Subsystem: Unknown device 1735:0035
> > 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> > 	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> > 	Latency: 64 (250ns min, 10500ns max), cache line size 08
> > 	Interrupt: pin B routed to IRQ 5
> > 	Region 0: Memory at ff9fd000 (32-bit, non-prefetchable) [size=4K]
> > 	Capabilities: [40] Power Management version 2
> > 		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
> > 		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> > 
> > 01:0c.2 USB Controller: NEC Corporation: Unknown device 00e0 (rev 02) (prog-if 20)
> > 	Subsystem: Unknown device 1735:00e1
> > 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> > 	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> > 	Latency: 64 (4000ns min, 8500ns max), cache line size 08
> > 	Interrupt: pin C routed to IRQ 11
> > 	Region 0: Memory at ff9fec00 (32-bit, non-prefetchable) [size=256]
> > 	Capabilities: [40] Power Management version 2
> > 		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
> > 		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> > 
> > 01:0f.0 FireWire (IEEE 1394): NEC Corporation: Unknown device 00f2 (rev 01) (prog-if 10 [OHCI])
> > 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> > 	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> > 	Latency: 64 (63750ns min, 63750ns max), cache line size 08
> > 	Interrupt: pin A routed to IRQ 9
> > 	Region 0: Memory at ff9ff000 (32-bit, non-prefetchable) [size=4K]
> > 	Capabilities: [60] Power Management version 2
> > 		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
> > 		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> 
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> -- 
> Chris Frost  |  <http://www.frostnet.net/chris/>
> -------------+----------------------------------
> Public PGP Key:
>    Email chris@frostnet.net with the subject "retrieve pgp key"
>    or visit <http://www.frostnet.net/chris/about/pgp_key.phtml>
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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 Helge Deller <deller@gmx.de>
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On Sun, 2006-04-02 at 19:28 -0600, Grant Grundler wrote:
> Unfortunately not. Not unless you want to disable IO Port space access.
> Each PCI bus controller routes 64MB of GMMIO space to 64KB of IO port space.
> The first 4 bytes of each page maps to a unique 4 byte in IO Port space.
> 
> On Astro platforms, we can use 64KB in LMMIO space to access
> IO Port space for all busses. The difference is Astro only
> has one SBA and IOC. N-class has two. There's more to this
> and I'm not sure of all the details at the moment.
> 
> 240MB is clearly not going to be enough on that machine.
> Even on a "normal" machine, a couple of graphics cards
> would exhaust the 240MB.  A single infiniband card could
> exhaust the 240MB space we have now.

OK, could someone explain what we're trying to do and why?

The original PA implementation of ioremap actually had I/O space and
memory space separated (this is almost essential on 32 bit machines with
lots of memory).

The new implementation is trying to map our I/O space directly into
memory.  Because of the way PA is implemented: no highmem, entire memory
offset mapped at 0x1000000; that means the only space we have for kernel
VM is 0-0x10000000 (On 32 bits, this offset mapping loses us the top
256k on 4GB machines, but that's f space anyway).  However, our vmalloc
space is very squeezed at 240k (remember, all modules have to be in
vmalloc space), so trying to share it with I/O mappings looks to be a
bit of a non-starter.

I suggest that on 32 bits, we really shouldn't alter the current scheme
(i.e. keep the separated I/O and  memory mappings).  On 64 bits, we
could allocate a far different VM range to vmalloc (somewhere up beyond
the maximum possible physical memory) and thus make it far bigger, which
would allow us to keep a mapped ioremap implementation.

Oh, and just before anyone suggests it, we'd have incredible difficulty
moving __PAGE_OFFSET because of the absolute<->virtual equivalence
requirements.

James





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Subject: Re: [parisc-linux] 2.6.17-rc1-pa0 attempt to build for 64bit ;-)
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On Tue, Apr 04, 2006 at 01:31:48PM +0100, Joel Soete wrote:
> Matthew,
> 
> Very sorry but as I haven't any more access to cvs (i can just grab snapshot
> ;-( ), so I missed your patch.

But you asked about it yesterday, and I told you the patch was already
committed.  Helge comimtted a -pa1 bump, so the -pa1 snapshot won't have
this problem.

In general, the -pa0 snapshot has *not* been built for any config, is
generally untested, and isn't worth wasting any time on.
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On Tuesday 04 April 2006 14:05, James Bottomley wrote:
> On Sun, 2006-04-02 at 19:28 -0600, Grant Grundler wrote:
> > Unfortunately not. Not unless you want to disable IO Port space access.
> > Each PCI bus controller routes 64MB of GMMIO space to 64KB of IO port space.
> > The first 4 bytes of each page maps to a unique 4 byte in IO Port space.
> > 
> > On Astro platforms, we can use 64KB in LMMIO space to access
> > IO Port space for all busses. The difference is Astro only
> > has one SBA and IOC. N-class has two. There's more to this
> > and I'm not sure of all the details at the moment.
> > 
> > 240MB is clearly not going to be enough on that machine.
> > Even on a "normal" machine, a couple of graphics cards
> > would exhaust the 240MB.  A single infiniband card could
> > exhaust the 240MB space we have now.
> 
> OK, could someone explain what we're trying to do and why?
> 
> The original PA implementation of ioremap actually had I/O space and
> memory space separated (this is almost essential on 32 bit machines with
> lots of memory).

Yes.
 
> The new implementation is trying to map our I/O space directly into
> memory.  Because of the way PA is implemented: no highmem, entire memory
> offset mapped at 0x1000000; that means the only space we have for kernel
> VM is 0-0x10000000 (On 32 bits, this offset mapping loses us the top
> 256k on 4GB machines, but that's f space anyway).  However, our vmalloc
> space is very squeezed at 240k (remember, all modules have to be in
> vmalloc space), so trying to share it with I/O mappings looks to be a
> bit of a non-starter.

Yes (240MB). 
 
> I suggest that on 32 bits, we really shouldn't alter the current scheme
> (i.e. keep the separated I/O and  memory mappings).  On 64 bits, we
> could allocate a far different VM range to vmalloc (somewhere up beyond
> the maximum possible physical memory) and thus make it far bigger, which
> would allow us to keep a mapped ioremap implementation.

Might work, although it makes the sources pretty ugly again.
The biggest problem with 64bit kernel and seperated I/O and memory mappings was, that you wasn't able to export I/O-memory via mmap() to 32bit userspace applications.
Biggest affected application was X11, who tried to mmap() the 64bit f-space region of the graphics RAM into 32bit-userspace.
This might maybe be maybe solveable with your proposal, since e.g. X11 on 32bit Kernel worked already somehow and 64bit could be solved with the mapping.

Another proposal could be to keep the current implementation on 32bit and as such not make the sources ugly again.
If a user then runs on a big iron like N4k he should use a 64bit kernel instead, which then would implement your 64bit-changes proposal.
 
> Oh, and just before anyone suggests it, we'd have incredible difficulty
> moving __PAGE_OFFSET because of the absolute<->virtual equivalence
> requirements.

Yes, that's the reason I never proposed that :-)

Helge
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Hello Helge,

[...]
> If a user then runs on a big iron like N4k he should use a 64bit kernel=

instead, which then would implement your 64bit-changes proposal.
>  
Sorry but I misderstood: iirc only 64bit kernel runs on such system like =
A, L,
N class; we haven't the choice?

Thanks,
    Joel

PS: btw, I read a lot of your patch related to page size 16k and 64k (for=

pa8000) but not sure we can try it now?=0A=0A----------------------------=
-----------------------------------=0AA free anti-spam and anti-virus fil=
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On Wednesday 05 April 2006 18:43, Joel Soete wrote:
> > If a user then runs on a big iron like N4k he should use a 64bit kernel
> instead, which then would implement your 64bit-changes proposal.
> >  
> Sorry but I misderstood: iirc only 64bit kernel runs on such system like A, L,
> N class; we haven't the choice?

Yes, 64bit kernel, but with additional changes as James proposed.
(the proposal is to implement an iomapping-region (in a very high memory region where you do not have physical memory), in which the ioremapping can happen.)

> PS: btw, I read a lot of your patch related to page size 16k and 64k (for
> pa8000) but not sure we can try it now?

It does not makes sense to test it yet, since it will crash your box.
I'm trying to read and understand the docs.
Not sure when I have it (at least partly) workable....
I'll let you know when you can try.

Helge
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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] e100_probe using ioremap
Date: Wed, 05 Apr 2006 14:50:36 -0300
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e100_probe in drivers/net/e100.c is using ioremap instead of 
ioremap_nocache.
Fix attached.

-- 
Gustavo Zacarias
Gentoo/SPARC monkey

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diff -Nura linux-2.6.16-pa11/drivers/net/e100.c linux-2.6.16-pa11-e100/drivers/net/e100.c
--- linux-2.6.16-pa11/drivers/net/e100.c	2006-03-20 02:53:29.000000000 -0300
+++ linux-2.6.16-pa11-e100/drivers/net/e100.c	2006-04-05 14:48:09.000000000 -0300
@@ -2607,7 +2607,7 @@
 	SET_MODULE_OWNER(netdev);
 	SET_NETDEV_DEV(netdev, &pdev->dev);
 
-	nic->csr = ioremap(pci_resource_start(pdev, 0), sizeof(struct csr));
+	nic->csr = ioremap_nocache(pci_resource_start(pdev, 0), sizeof(struct csr));
 	if(!nic->csr) {
 		DPRINTK(PROBE, ERR, "Cannot map device registers, aborting.\n");
 		err = -ENOMEM;

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From: Chris Frost <chris@frostnet.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] IOGear Firewire+USB card causes unexpected irq 2
Date: Wed, 5 Apr 2006 11:37:47 -0700
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On Tue, Apr 04, 2006 at 08:05:33AM +0200, Helge Deller wrote:
> 01:0f.0 FireWire (IEEE 1394): NEC Corporation: Unknown device 00f2 (rev 01) (prog-if 10 [OHCI])
> says:	Interrupt: pin A routed to IRQ 9
> 
> Do you have CONFIG_EISA and/or CONFIG_ISA enabled ?
> If yes, try without...

Neither are enabled.
(But thanks for the suggestion.)

-- 
Chris Frost  |  <http://www.frostnet.net/chris/>
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [fuse-devel] Re: [parisc-linux] [PATCH] Fixs to work on ARM
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> > > No, because if you look at the implementation, you'll see that
> > > copy_to/from_user() copy straight into the user view (i.e. via the user
> > > cache lines).
> > 
> > Yes.  But how will this ensure that the above problems (dirty/clean
> > cache lines in aliases) won't cause any problems?
> 
> It doesn't.  The object is to write into the user cache as though the
> actual user process had done it (i.e. disregarding all aliasing).

Which is also what the object of get_user_pages() + memcpy() is.  The
fact that in the process some part of the cache is flushed is
irrelevant.

get_user_pages() is used as a _substitute_ for copy_*_user() if the
memory copying needs to be done from a different VM context.

> > What is the difference between
> > 
> >  - updating cached data through the user view
> > 
> >  - flushing the cache lines for the user view, then updating data
> >    through the kernel view and finally flushing the cache lines for
> >    the kernel view
> 
> In the former, the data usually ends up in dirty user cache lines.  In
> the latter the cache lines are entirely clean after the procedure.
> 
> > I don't see in either case that the cache lines for any other aliases
> > are touched.  Is there still some difference in behavior?
> 
> Yes, in the former, only a single alias (the user view) is affected.  In
> the latter, all views are accounted for.

I think we agree on what happens, but not about why it is needed to
happen.

With your fix get_user_pages() guarantees _more_ coherency than
copy_from/to_user().  This not a bug per-se, but it does require a new
interface (flush_anon_pages()) and provides "strange" cache coherency
semantics.

By strange I mean, that all views of file backed pages are flushed,
but only one view of anononymous pages.  This IMO doesn't make too
much sense, but feel free to correct me if I'm wrong.

How about this?

Index: linux/mm/memory.c
===================================================================
--- linux.orig/mm/memory.c	2006-04-04 18:44:47.000000000 +0200
+++ linux/mm/memory.c	2006-04-06 08:40:26.000000000 +0200
@@ -1072,8 +1072,8 @@ int get_user_pages(struct task_struct *t
 			if (pages) {
 				pages[i] = page;
 
-				flush_anon_page(page, start);
-				flush_dcache_page(page);
+				flush_cache_page(vma, start, page_to_pfn(page));
+				flush_kernel_dcache_page(page);
 			}
 			if (vmas)
 				vmas[i] = vma;

The flushing semantics are cleaner, and the flush_anon_page()
interface is not needed.

Miklos
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From: James Bottomley <James.Bottomley@SteelEye.com>
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Subject: Re: [fuse-devel] Re: [parisc-linux] [PATCH] Fixs to work on ARM
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On Thu, 2006-04-06 at 08:53 +0200, Miklos Szeredi wrote:
> How about this?

It would double flush the page on a lot of architectures

James


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Xref: news.gmane.org gmane.linux.ports.parisc:23548

People,

I recently added a Sun dual gigabit, dual scsi PCI card to one of my
B2000s. This board contains 2 cassini chips, and a 53c896, all sitting
behind an Intel (well, Digital) 21154 PCI bridge.

The system works fine, but I'm seeing the following problems:

Whel probing the SCSI part of the board, the kernel spits the
following:

PCI: resource not parented! [2000-2fff]
PCI: resource not parented! [fb000000-fb5fffff]

And if I look at /proc/ioports :

00000000-00001fff : PCI00 Ports
  00000020-0000003e : pic1
  000000a0-000000be : pic2
  000007e0-000007fe : acpi
  00000800-000008ff : sym53c8xx
  00000900-00000907 : ide0
  00000908-0000090f : ide1
  00000d02-00000d02 : ide0
  00000e00-00000e07 : ide0
  00000f00-00000f7f : tulip
00012000-00013fff : PCI01 Ports
  00012000-000120ff : sym53c8xx
  00012100-000121ff : sym53c8xx
  00002000-00002fff : PCI Bus #02
  00002000-00002fff : PCI Bus #02
  00002000-00002fff : PCI Bus #02
  00002000-00002fff : PCI Bus #02
  00002000-00002fff : PCI Bus #02
  00002000-00002fff : PCI Bus #02
  00002000-00002fff : PCI Bus #02
  00002000-00002fff : PCI Bus #02
[... ad nauseam].

Something looks bad here... Does anybody have a clue about this? lspci
output happended at the end of this mail.

Regards,

	M.

ashes:/home/maz# lspci -vv
0000:00:0c.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41)
        Subsystem: Hewlett-Packard Company: Unknown device 104f
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR+ FastB2B-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255 (5000ns min, 10000ns max), Cache Line Size: 0x10 (64 bytes)
        Interrupt: pin A routed to IRQ 17
        Region 0: I/O ports at 0f00 [size=128]
        Region 1: Memory at f4005000 (32-bit, non-prefetchable) [size=1K]
        Expansion ROM at f4040000 [disabled] [size=256K]

0000:00:0d.0 Multimedia audio controller: Analog Devices AD1889 sound chip
        Subsystem: Analog Devices AD1889 sound chip
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255 (250ns min, 63750ns max)
        Interrupt: pin A routed to IRQ 18
        Region 0: Memory at f4009000 (32-bit, prefetchable) [size=512]
        Region 1: Memory at f4008000 (32-bit, prefetchable) [size=16]
        Region 2: Memory at f4007000 (32-bit, prefetchable) [size=16]
        Region 3: Memory at f4006000 (32-bit, prefetchable) [size=16]
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI- D1- D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:00:0e.0 IDE interface: National Semiconductor Corporation 87415/87560 IDE (rev 03) (prog-if 8f [Master SecP SecO PriP PriO])
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR+ FastB2B-
        Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255, Cache Line Size: 0x10 (64 bytes)
        Interrupt: pin ? routed to IRQ 7
        Region 0: I/O ports at 0e00 [size=8]
        Region 1: I/O ports at 0d00 [size=4]
        Region 2: I/O ports at 0b00 [size=8]
        Region 3: I/O ports at 0a00 [size=4]
        Region 4: I/O ports at 0900 [size=16]

0000:00:0e.1 Bridge: National Semiconductor Corporation 87560 Legacy I/O (rev 01)
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B-
        Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255, Cache Line Size: 0x10 (64 bytes)
        Interrupt: pin ? routed to IRQ 19

0000:00:0e.2 USB Controller: National Semiconductor Corporation USB Controller (rev 02) (prog-if 10 [OHCI])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR+ FastB2B-
        Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 240
        Interrupt: pin D routed to IRQ 1
        Region 0: Memory at f4004000 (32-bit, non-prefetchable) [size=4K]
        Region 1: Memory at f4003000 (32-bit, non-prefetchable) [size=4K]

0000:00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53c895a (rev 01)
        Subsystem: LSI Logic / Symbios Logic LSI53C895A PCI to Ultra2 SCSI Controller
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255 (4250ns min, 16000ns max), Cache Line Size: 0x10 (64 bytes)
        Interrupt: pin A routed to IRQ 20
        Region 0: I/O ports at 0800 [size=256]
        Region 1: Memory at f4002000 (32-bit, non-prefetchable) [size=1K]
        Region 2: Memory at f4000000 (32-bit, non-prefetchable) [size=8K]
        Capabilities: [40] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:01:00.0 3D controller: Hewlett-Packard Company Visualize FXe (rev 03)
        Subsystem: Hewlett-Packard Company: Unknown device 108c
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR- FastB2B-
        Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255
        Interrupt: pin A routed to IRQ 21
        Region 0: Memory at fa000000 (64-bit, prefetchable) [size=16M]
        Region 2: Memory at f9000000 (64-bit, non-prefetchable) [size=16M]
        Expansion ROM at f4800000 [disabled] [size=128K]

0000:01:02.0 PCI bridge: Intel Corporation 21154 PCI-to-PCI Bridge (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B+
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255, Cache Line Size: 0x10 (64 bytes)
        Bus: primary=01, secondary=02, subordinate=02, sec-latency=255
        I/O behind bridge: 00002000-00002fff
        Memory behind bridge: fb000000-fb5fffff
        Prefetchable memory behind bridge: 00000000f0100000-00000000f0100000
        BridgeCtl: Parity+ SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
                Bridge: PM- B3+

0000:02:00.0 Ethernet controller: National Semiconductor Corporation DP83065 [Saturn] 10/100/1000 Ethernet Controller (rev 30)
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR- FastB2B-
        Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255 (16000ns min, 16000ns max), Cache Line Size: 0x20 (128 bytes)
        Interrupt: pin A routed to IRQ 22
        Region 0: Memory at fb200000 (32-bit, non-prefetchable) [size=2M]
        Expansion ROM at fb500000 [disabled] [size=1M]

0000:02:01.0 Ethernet controller: National Semiconductor Corporation DP83065 [Saturn] 10/100/1000 Ethernet Controller (rev 30)
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR- FastB2B-
        Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255 (16000ns min, 16000ns max), Cache Line Size: 0x20 (128 bytes)
        Interrupt: pin A routed to IRQ 23
        Region 0: Memory at fb000000 (32-bit, non-prefetchable) [size=2M]
        Expansion ROM at fb500000 [disabled] [size=1M]

0000:02:02.0 SCSI storage controller: LSI Logic / Symbios Logic 53C896/897 (rev 07)
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255 (4250ns min, 16000ns max), Cache Line Size: 0x10 (64 bytes)
        Interrupt: pin A routed to IRQ 24
        Region 0: I/O ports at 12100 [size=256]
        Region 1: Memory at fb405000 (64-bit, non-prefetchable) [size=1K]
        Region 3: Memory at fb402000 (64-bit, non-prefetchable) [size=8K]
        Expansion ROM at fb500000 [disabled] [size=64K]
        Capabilities: [40] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:02:02.1 SCSI storage controller: LSI Logic / Symbios Logic 53C896/897 (rev 07)
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 255 (4250ns min, 16000ns max), Cache Line Size: 0x10 (64 bytes)
        Interrupt: pin B routed to IRQ 25
        Region 0: I/O ports at 12000 [size=256]
        Region 1: Memory at fb404000 (64-bit, non-prefetchable) [size=1K]
        Region 3: Memory at fb400000 (64-bit, non-prefetchable) [size=8K]
        Expansion ROM at fb500000 [disabled] [size=64K]
        Capabilities: [40] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-


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Xref: news.gmane.org gmane.linux.ports.parisc:23549

On Wed, 2006-04-05 at 08:50 +0200, Helge Deller wrote: 
> > I suggest that on 32 bits, we really shouldn't alter the current scheme
> > (i.e. keep the separated I/O and  memory mappings).  On 64 bits, we
> > could allocate a far different VM range to vmalloc (somewhere up beyond
> > the maximum possible physical memory) and thus make it far bigger, which
> > would allow us to keep a mapped ioremap implementation.
> 
> Might work, although it makes the sources pretty ugly again.
> The biggest problem with 64bit kernel and seperated I/O and memory mappings was, that you wasn't able to export I/O-memory via mmap() to 32bit userspace applications.
> Biggest affected application was X11, who tried to mmap() the 64bit f-space region of the graphics RAM into 32bit-userspace.
> This might maybe be maybe solveable with your proposal, since e.g. X11 on 32bit Kernel worked already somehow and 64bit could be solved with the mapping.

I suspected it might be something like this.  Actually, ioremap looks to
be the wrong interface to fix this.  The problem seems to be that
fb_mmap() in drivers/video/fb.c has a special fall through case if the
driver doesn't implement fb_mmap() which tries to insert page mappings
for the I/O memory region into the users space, this fall through
doesn't seem to be correct for 64 bits (or at least for 32 bit processes
running on a 64 bit kernel) ... I think if we fix this, we'll get
graphics on 64 bit without the need to remap I/O memory.

James




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To: Miklos Szeredi <miklos@szeredi.hu>
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On Tue, 2006-04-04 at 18:07 +0200, Miklos Szeredi wrote:
> > No, because if you look at the implementation, you'll see that
> > copy_to/from_user() copy straight into the user view (i.e. via the user
> > cache lines).
> 
> Yes.  But how will this ensure that the above problems (dirty/clean
> cache lines in aliases) won't cause any problems?

It doesn't.  The object is to write into the user cache as though the
actual user process had done it (i.e. disregarding all aliasing).

> What is the difference between
> 
>  - updating cached data through the user view
> 
>  - flushing the cache lines for the user view, then updating data
>    through the kernel view and finally flushing the cache lines for
>    the kernel view

In the former, the data usually ends up in dirty user cache lines.  In
the latter the cache lines are entirely clean after the procedure.

> I don't see in either case that the cache lines for any other aliases
> are touched.  Is there still some difference in behavior?

Yes, in the former, only a single alias (the user view) is affected.  In
the latter, all views are accounted for.

James


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Subject: Re: [fuse-devel] Re: [parisc-linux] [PATCH] Fixs to work on ARM
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On Thu, 2006-04-06 at 13:56 +0200, Miklos Szeredi wrote:
> > > How about this?
> > 
> > It would double flush the page on a lot of architectures
> 
> Which?

Well ... all of them.  Anonymous pages coming into get_user_pages() is
pretty much the exception.  You do this for every page.  But anyway,
even if you fixed that, Dave Miller vetoed an implementation based on
flush_cache_page() on the grounds that the implementation is nop'd on
quite a few architectures because of the way it's used ... it was the
first fix I tried to get past linux-arch.

James


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> > > > How about this?
> > > 
> > > It would double flush the page on a lot of architectures
> > 
> > Which?
> 
> Well ... all of them.  Anonymous pages coming into get_user_pages() is
> pretty much the exception.

I don't think that holds, since I would imagine most user pages _are_
anonymous.

Ptrace is one of the more notable users of get_user_pages() so I
checked what happens if I run 'strace /bin/true' on an instrumented
kernel.

Anon pages won by 214 to 26.

> You do this for every page.  But anyway, even if you fixed that,
> Dave Miller vetoed an implementation based on flush_cache_page() on
> the grounds that the implementation is nop'd on quite a few
> architectures because of the way it's used

Sounds like another case of a crappy interface.

But I don't care overmuch.  I'll submit a patch for ARM and let this
issue rest in peace.

Anyway, thanks for the fast course on CPU caches :)

Miklos
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Randolph,

bfd/elf32-hppa.c
   4168                     need_relocs =3D TRUE;
   4169                     loc =3D htab->srelgot->contents;
   4170                     /* FIXME (CAO): Should this be reloc_count++ ? =
*/
   4171                     loc +=3D htab->srelgot->reloc_count * sizeof
(Elf32_External_Rela);

Should there be a reloc_count++ there?
Or is this taken into account earlier?

Cheers,
Carlos.
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[Sorry about how long it has taken to get to this... I bounced it to
 parisc-linux too, so hopefully someone else can comment as well.]

On Wed, Feb 22, 2006 at 10:13:56AM +0100, Ingo Molnar wrote:
> There's only one complication i can imagine on PARISC: truly atomic 
> futex_atomic_cmpxchg_inuser() is not possible in any sane way because 
> any spinlock based cmpxchg exposes itself to userspace locking up the 
> kernel - no good. [We could in theory do something about it by imposing 
> some sort of deadline on the maximum time the spinning-on-userspace-lock 
> can take - but i dont think it's worth the trouble.]
>

Due to a complete lack of useful atomic operations on parisc, the
way I envisioned implementing the routines was serializing all futex
ops on a kernel spinlock. Since it's a userspace address, we couldn't
use an atomic hash unless we found the physical address behind it, so 
just one spinlock would do... Of course, I'm probably missing something 
critical here, though.

Cheers,
	Kyle M.
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* Kyle McMartin <kyle@mcmartin.ca> wrote:

> [Sorry about how long it has taken to get to this... I bounced it to
>  parisc-linux too, so hopefully someone else can comment as well.]
> 
> On Wed, Feb 22, 2006 at 10:13:56AM +0100, Ingo Molnar wrote:
> > There's only one complication i can imagine on PARISC: truly atomic 
> > futex_atomic_cmpxchg_inuser() is not possible in any sane way because 
> > any spinlock based cmpxchg exposes itself to userspace locking up the 
> > kernel - no good. [We could in theory do something about it by imposing 
> > some sort of deadline on the maximum time the spinning-on-userspace-lock 
> > can take - but i dont think it's worth the trouble.]
> >
> 
> Due to a complete lack of useful atomic operations on parisc, the way 
> I envisioned implementing the routines was serializing all futex ops 
> on a kernel spinlock. Since it's a userspace address, we couldn't use 
> an atomic hash unless we found the physical address behind it, so just 
> one spinlock would do... Of course, I'm probably missing something 
> critical here, though.

if userspace doesnt do atomic ops then the solution should be relatively 
easy: make glibc always call into the kernel, and then the kernel-level 
futex.h ops can be implemented in a lockless manner (i.e. not even a 
spinlock is needed) and you'll get (pretty scalable) futex 
functionality. The in-kernel futex hash-bucket spinlocks take care of 
locking.

	Ingo
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Randolph,

This is my merge of the TLS patch to mainline.

I'm going through our TLS document .tex file
stored in our web/ cvs module. I'm hoping this
is up to date and ok.

What else do we need to add to binutils?

Please review.

Cheers,
Carlos.

gas/

2005-06-09  Randolph Chung  <tausq@debian.org>

=09* config/tc-hppa.h (hppa_fix_adjustable): Handle TLS relocations.
=09* config/tc-hppa.c (is_tls_gdidx, is_tls_ldidx, is_tls_dtpoff): New.
=09(is_tls_ieoff, is_tls_leoff): New.
=09(fix_new_hppa): Handle TLS relocations.
=09(cons_fix_new_hppa): Likewise.
=09(pa_ip): Likewise.
=09(md_apply_fix): Likewise.

include/elf/

2005-06-09  Randolph Chung  <tausq@debian.org>

=09* hppa.h: Add TLS relocations.

bfd/

2005-06-09  Randolph Chung  <tausq@debian.org>

=09* elf-hppa.h (reloc_hppa_howto_table): Check bitfield for
=09TPREL21L/TPREL14R relocations. Handle LTOFF_TP14R relocations.
=09Add handling for new TLS relocations.
=09(elf_hppa_reloc_final_type): Handle TLS relocations.
=09* elf32-hppa.c (elf32_hppa_link_hash_entry): Define tls GOT type
=09enumeration.  Add tls_ldm_got to keep track of LDM relocations.
=09(hppa_elf_hash_entry): New.
=09(hppa_elf_local_got_tls_type): New.
=09(elf32_hppa_optimized_tls_reloc): New function.
=09(hppa_link_hash_newfunc): Initialize tls_type field.
=09(elf32_hppa_link_hash_table_create): Initialize tls_ldm_got
=09field.
=09(elf32_hppa_copy_indirect_symbol): Copy TLS information.
=09(elf32_hppa_check_relocs): Handle TLS relocations.
=09(elf32_hppa_gc_sweep_hook): Likewise.
=09(allocate_plt_static): Cleanup usage of elf32_hppa_link_hash_entry
=09cast.
=09(allocate_dynrelocs): Handle TLS relocations.
=09(elf32_hppa_size_dynamic_sections): Likewise.
=09(dtpoff_base): New function.
=09(tpoff): New function.
=09(final_link_relocate): Handle TLS relocations.
=09(elf32_hppa_optimized_tls_reloc): New function.
=09(elf32_hppa_relocate_section): Handle TLS relocations.
=09(elf32_hppa_finish_dynamic_symbol): Likewise.
=09(elf32_hppa_reloc_type_class): Likewise.

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? bfd/doc/bfd.info
? binutils/doc/binutils.info
? gas/doc/as.info
? ld/ld.info
Index: bfd/elf-hppa.h
===================================================================
RCS file: /cvs/src/src/bfd/elf-hppa.h,v
retrieving revision 1.81
diff -u -p -r1.81 elf-hppa.h
--- bfd/elf-hppa.h	25 Aug 2005 02:32:09 -0000	1.81
+++ bfd/elf-hppa.h	8 Apr 2006 21:53:34 -0000
@@ -387,7 +387,7 @@ static reloc_howto_type elf_hppa_howto_t
     bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
   { R_PARISC_TPREL32, 0, 0, 32, FALSE, 0, complain_overflow_dont,
     bfd_elf_generic_reloc, "R_PARISC_TPREL32", FALSE, 0, 0, FALSE },
-  { R_PARISC_TPREL21L, 0, 0, 21, FALSE, 0, complain_overflow_dont,
+  { R_PARISC_TPREL21L, 0, 0, 21, FALSE, 0, complain_overflow_bitfield,
     bfd_elf_generic_reloc, "R_PARISC_TPREL21L", FALSE, 0, 0, FALSE },
   { R_PARISC_UNIMPLEMENTED, 0, 0, 0, FALSE, 0, complain_overflow_dont,
     bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
@@ -395,7 +395,7 @@ static reloc_howto_type elf_hppa_howto_t
     bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
   { R_PARISC_UNIMPLEMENTED, 0, 0, 0, FALSE, 0, complain_overflow_dont,
     bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
-  { R_PARISC_TPREL14R, 0, 0, 14, FALSE, 0, complain_overflow_dont,
+  { R_PARISC_TPREL14R, 0, 0, 14, FALSE, 0, complain_overflow_bitfield,
     bfd_elf_generic_reloc, "R_PARISC_TPREL14R", FALSE, 0, 0, FALSE },
   { R_PARISC_UNIMPLEMENTED, 0, 0, 0, FALSE, 0, complain_overflow_dont,
     bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
@@ -413,7 +413,7 @@ static reloc_howto_type elf_hppa_howto_t
   { R_PARISC_UNIMPLEMENTED, 0, 0, 0, FALSE, 0, complain_overflow_bitfield,
     bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
   { R_PARISC_LTOFF_TP14R, 0, 0, 14, FALSE, 0, complain_overflow_bitfield,
-    bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
+    bfd_elf_generic_reloc, "R_PARISC_LTOFF_TP14R", FALSE, 0, 0, FALSE },
   { R_PARISC_LTOFF_TP14F, 0, 0, 14, FALSE, 0, complain_overflow_bitfield,
     bfd_elf_generic_reloc, "R_PARISC_LTOFF_TP14F", FALSE, 0, 0, FALSE },
   /* 168 */
@@ -557,6 +557,31 @@ static reloc_howto_type elf_hppa_howto_t
     bfd_elf_generic_reloc, "R_PARISC_GNU_VTENTRY", FALSE, 0, 0, FALSE },
   { R_PARISC_GNU_VTINHERIT, 0, 0, 0, FALSE, 0, complain_overflow_dont,
     bfd_elf_generic_reloc, "R_PARISC_GNU_VTINHERIT", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_GD21L, 0, 0, 21, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_GD21L", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_GD14R, 0, 0, 14, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_GD14R", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_GDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_GDCALL", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_LDM21L, 0, 0, 21, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_LDM21L", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_LDM14R, 0, 0, 14, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_LDM14R", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_LDMCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_LDMCALL", FALSE, 0, 0, FALSE },
+  /* 240 */
+  { R_PARISC_TLS_LDO21L, 0, 0, 21, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_LDO21L", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_LDO14R, 0, 0, 14, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_LDO14R", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_DTPMOD32, 0, 0, 32, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_DTPMOD32", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_DTPMOD64, 0, 0, 64, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_DTPMOD64", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_DTPOFF32, 0, 0, 32, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_DTPOFF32", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_DTPOFF64, 0, 0, 64, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_DTPOFF64", FALSE, 0, 0, FALSE },
 };
 
 #define OFFSET_14R_FROM_21L 4
@@ -837,6 +862,82 @@ elf_hppa_reloc_final_type (bfd *abfd,
 	  return R_PARISC_NONE;
 	}
       break;
+      
+    case R_PARISC_TLS_GD21L:
+      switch (field)
+	{
+	  case e_ltsel:
+	  case e_lrsel:
+	    final_type = R_PARISC_TLS_GD21L;
+	    break;
+	  case e_rtsel:
+	  case e_rrsel:
+	    final_type = R_PARISC_TLS_GD14R;
+	    break;
+	  default:
+	    return R_PARISC_NONE;
+	}
+      break;
+
+    case R_PARISC_TLS_LDM21L:
+      switch (field)
+	{
+	  case e_ltsel:
+	  case e_lrsel:
+	    final_type = R_PARISC_TLS_LDM21L;
+	    break;
+	  case e_rtsel:
+	  case e_rrsel:
+	    final_type = R_PARISC_TLS_LDM14R;
+	    break;
+	  default:
+	    return R_PARISC_NONE;
+	}
+      break;
+
+    case R_PARISC_TLS_LDO21L:
+      switch (field)
+	{
+	  case e_lrsel:
+	    final_type = R_PARISC_TLS_LDO21L;
+	    break;
+	  case e_rrsel:
+	    final_type = R_PARISC_TLS_LDO14R;
+	    break;
+	  default:
+	    return R_PARISC_NONE;
+	}
+      break;
+
+    case R_PARISC_TLS_IE21L:
+      switch (field)
+	{
+	  case e_ltsel:
+	  case e_lrsel:
+	    final_type = R_PARISC_TLS_IE21L;
+	    break;
+	  case e_rtsel:
+	  case e_rrsel:
+	    final_type = R_PARISC_TLS_IE14R;
+	    break;
+	  default:
+	    return R_PARISC_NONE;
+	}
+      break;
+
+    case R_PARISC_TLS_LE21L:
+      switch (field)
+	{
+	  case e_lrsel:
+	    final_type = R_PARISC_TLS_LE21L;
+	    break;
+	  case e_rrsel:
+	    final_type = R_PARISC_TLS_LE14R;
+	    break;
+	  default:
+	    return R_PARISC_NONE;
+	}
+      break;
 
     case R_PARISC_GNU_VTENTRY:
     case R_PARISC_GNU_VTINHERIT:
Index: bfd/elf32-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
retrieving revision 1.144
diff -u -p -r1.144 elf32-hppa.c
--- bfd/elf32-hppa.c	16 Mar 2006 12:20:15 -0000	1.144
+++ bfd/elf32-hppa.c	8 Apr 2006 21:53:35 -0000
@@ -7,7 +7,9 @@
 	Department of Computer Science
 	University of Utah
    Largely rewritten by Alan Modra <alan@linuxcare.com.au>
-
+   Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
+   TLS support written by Randolph Chung <tausq@debian.org>
+ 
    This file is part of BFD, the Binary File Descriptor library.
 
    This program is free software; you can redistribute it and/or modify
@@ -230,6 +232,10 @@ struct elf32_hppa_link_hash_entry {
 #endif
   } *dyn_relocs;
 
+  enum {
+    GOT_UNKNOWN = 0, GOT_NORMAL = 1, GOT_TLS_GD = 2, GOT_TLS_LDM = 4, GOT_TLS_IE = 8
+  } tls_type;
+
   /* Set if this symbol is used by a plabel reloc.  */
   unsigned int plabel:1;
 };
@@ -292,6 +298,12 @@ struct elf32_hppa_link_hash_table {
 
   /* Small local sym to section mapping cache.  */
   struct sym_sec_cache sym_sec;
+
+  /* Data for LDM relocations.  */
+  union {
+    bfd_signed_vma refcount;
+    bfd_vma offset;
+  } tls_ldm_got;
 };
 
 /* Various hash macros and functions.  */
@@ -308,6 +320,19 @@ struct elf32_hppa_link_hash_table {
   ((struct elf32_hppa_stub_hash_entry *) \
    bfd_hash_lookup ((table), (string), (create), (copy)))
 
+#define hppa_elf_local_got_tls_type(abfd) \
+  ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
+
+#define hh_name(hh) \
+  (hh ? hh->eh.root.root.string : "<undef>")
+
+#define eh_name(eh) \
+  (eh ? eh->root.root.string : "<undef>")
+
+static int
+elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info,
+				int r_type, int is_local);
+
 /* Assorted hash table functions.  */
 
 /* Initialize an entry in the stub hash table.  */
@@ -375,6 +400,7 @@ hppa_link_hash_newfunc (struct bfd_hash_
       hh->hsh_cache = NULL;
       hh->dyn_relocs = NULL;
       hh->plabel = 0;
+      hh->tls_type = GOT_UNKNOWN;
     }
 
   return entry;
@@ -424,6 +450,7 @@ elf32_hppa_link_hash_table_create (bfd *
   htab->has_22bit_branch = 0;
   htab->need_plt_stub = 0;
   htab->sym_sec.abfd = NULL;
+  htab->tls_ldm_got.refcount = 0;
 
   return &htab->etab.root;
 }
@@ -453,13 +480,13 @@ hppa_stub_name (const asection *input_se
 
   if (hh)
     {
-      len = 8 + 1 + strlen (hh->eh.root.root.string) + 1 + 8 + 1;
+      len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
       stub_name = bfd_malloc (len);
       if (stub_name != NULL)
 	{
 	  sprintf (stub_name, "%08x_%s+%x",
 		   input_section->id & 0xffffffff,
-		   hh->eh.root.root.string,
+		   hh_name (hh),
 		   (int) rela->r_addend & 0xffffffff);
 	}
     }
@@ -1063,7 +1090,16 @@ elf32_hppa_copy_indirect_symbol (struct 
       eh_dir->needs_plt |= eh_ind->needs_plt;
     }
   else
-   _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
+    {
+      if (eh_ind->root.type == bfd_link_hash_indirect
+          && eh_dir->got.refcount <= 0)
+        {
+          hh_dir->tls_type = hh_ind->tls_type;
+          hh_ind->tls_type = GOT_UNKNOWN;
+        }
+
+      _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
+    }
 }
 
 /* Look through the relocs for a section during the first phase, and
@@ -1084,6 +1120,7 @@ elf32_hppa_check_relocs (bfd *abfd,
   struct elf32_hppa_link_hash_table *htab;
   asection *sreloc;
   asection *stubreloc;
+  int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
 
   if (info->relocatable)
     return TRUE;
@@ -1121,6 +1158,7 @@ elf32_hppa_check_relocs (bfd *abfd,
 	}
 
       r_type = ELF32_R_TYPE (rela->r_info);
+      r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
 
       switch (r_type)
 	{
@@ -1243,6 +1281,20 @@ elf32_hppa_check_relocs (bfd *abfd,
 	    return FALSE;
 	  continue;
 
+	case R_PARISC_TLS_GD21L:
+	case R_PARISC_TLS_GD14R:
+	case R_PARISC_TLS_LDM21L:
+	case R_PARISC_TLS_LDM14R:
+	  need_entry = NEED_GOT;
+	  break;
+
+	case R_PARISC_TLS_IE21L:
+	case R_PARISC_TLS_IE14R:
+	  if (info->shared)
+            info->flags |= DF_STATIC_TLS;
+	  need_entry = NEED_GOT;
+	  break;
+
 	default:
 	  continue;
 	}
@@ -1250,6 +1302,25 @@ elf32_hppa_check_relocs (bfd *abfd,
       /* Now carry out our orders.  */
       if (need_entry & NEED_GOT)
 	{
+	  switch (r_type)
+	    {
+	    default:
+	      tls_type = GOT_NORMAL;
+	      break;
+	    case R_PARISC_TLS_GD21L:
+	    case R_PARISC_TLS_GD14R:
+	      tls_type |= GOT_TLS_GD;
+	      break;
+	    case R_PARISC_TLS_LDM21L:
+	    case R_PARISC_TLS_LDM14R:
+	      tls_type |= GOT_TLS_LDM;
+	      break;
+	    case R_PARISC_TLS_IE21L:
+	    case R_PARISC_TLS_IE14R:
+	      tls_type |= GOT_TLS_IE;
+	      break;
+	    }
+
 	  /* Allocate space for a GOT entry, as well as a dynamic
 	     relocation for this entry.  */
 	  if (htab->sgot == NULL)
@@ -1260,31 +1331,56 @@ elf32_hppa_check_relocs (bfd *abfd,
 		return FALSE;
 	    }
 
-	  if (hh != NULL)
-	    {
-	      hh->eh.got.refcount += 1;
-	    }
+	  if (r_type == R_PARISC_TLS_LDM21L
+	      || r_type == R_PARISC_TLS_LDM14R)
+	    hppa_link_hash_table (info)->tls_ldm_got.refcount += 1;
 	  else
 	    {
-	      bfd_signed_vma *local_got_refcounts;
-              /* This is a global offset table entry for a local symbol.  */
-	      local_got_refcounts = elf_local_got_refcounts (abfd);
-	      if (local_got_refcounts == NULL)
-		{
-		  bfd_size_type size;
+	      if (hh != NULL)
+	        {
+	          hh->eh.got.refcount += 1;
+	          old_tls_type = hh->tls_type;
+	        }
+	      else
+	        {
+	          bfd_signed_vma *local_got_refcounts;
+		  
+	          /* This is a global offset table entry for a local symbol.  */
+	          local_got_refcounts = elf_local_got_refcounts (abfd);
+	          if (local_got_refcounts == NULL)
+		    {
+		      bfd_size_type size;
+
+		      /* Allocate space for local got offsets and local
+		         plt offsets.  Done this way to save polluting
+		         elf_obj_tdata with another target specific
+		         pointer.  */
+		      size = symtab_hdr->sh_info;
+		      size *= 2 * sizeof (bfd_signed_vma);
+		      /* Add in space to store the local GOT TLS types.  */
+		      size += symtab_hdr->sh_info;
+		      local_got_refcounts = bfd_zalloc (abfd, size);
+		      if (local_got_refcounts == NULL)
+		        return FALSE;
+		      elf_local_got_refcounts (abfd) = local_got_refcounts;
+		      memset (hppa_elf_local_got_tls_type (abfd),
+		    	  GOT_UNKNOWN, symtab_hdr->sh_info);
+		    }
+	          local_got_refcounts[r_symndx] += 1;
+
+	          old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
+	        }
+
+	      tls_type |= old_tls_type;
+
+	      if (old_tls_type != tls_type)
+	        {
+	          if (hh != NULL)
+		    hh->tls_type = tls_type;
+	          else
+		    hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
+	        }
 
-		  /* Allocate space for local got offsets and local
-		     plt offsets.  Done this way to save polluting
-		     elf_obj_tdata with another target specific
-		     pointer.  */
-		  size = symtab_hdr->sh_info;
-		  size *= 2 * sizeof (bfd_signed_vma);
-		  local_got_refcounts = bfd_zalloc (abfd, size);
-		  if (local_got_refcounts == NULL)
-		    return FALSE;
-		  elf_local_got_refcounts (abfd) = local_got_refcounts;
-		}
-	      local_got_refcounts[r_symndx] += 1;
 	    }
 	}
 
@@ -1325,6 +1421,8 @@ elf32_hppa_check_relocs (bfd *abfd,
 			 plt offsets.  */
 		      size = symtab_hdr->sh_info;
 		      size *= 2 * sizeof (bfd_signed_vma);
+		      /* Add in space to store the local GOT TLS types.  */
+		      size += symtab_hdr->sh_info;
 		      local_got_refcounts = bfd_zalloc (abfd, size);
 		      if (local_got_refcounts == NULL)
 			return FALSE;
@@ -1578,11 +1676,17 @@ elf32_hppa_gc_sweep_hook (bfd *abfd,
 	}
 
       r_type = ELF32_R_TYPE (rela->r_info);
+      r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
+
       switch (r_type)
 	{
 	case R_PARISC_DLTIND14F:
 	case R_PARISC_DLTIND14R:
 	case R_PARISC_DLTIND21L:
+	case R_PARISC_TLS_GD21L:
+	case R_PARISC_TLS_GD14R:
+	case R_PARISC_TLS_IE21L:
+	case R_PARISC_TLS_IE14R:
 	  if (eh != NULL)
 	    {
 	      if (eh->got.refcount > 0)
@@ -1595,6 +1699,11 @@ elf32_hppa_gc_sweep_hook (bfd *abfd,
 	    }
 	  break;
 
+	case R_PARISC_TLS_LDM21L:
+	case R_PARISC_TLS_LDM14R:
+	  hppa_link_hash_table (info)->tls_ldm_got.refcount -= 1;
+	  break;
+
 	case R_PARISC_PCREL12F:
 	case R_PARISC_PCREL17C:
 	case R_PARISC_PCREL17F:
@@ -1982,12 +2091,22 @@ allocate_dynrelocs (struct elf_link_hash
       sec = htab->sgot;
       eh->got.offset = sec->size;
       sec->size += GOT_ENTRY_SIZE;
+      /* R_PARISC_TLS_GD* needs two GOT entries */
+      if ((hh->tls_type & (GOT_TLS_GD|GOT_TLS_IE)) 
+	  == (GOT_TLS_GD|GOT_TLS_IE))
+      	sec->size += GOT_ENTRY_SIZE * 2;
+      else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
+      	sec->size += GOT_ENTRY_SIZE;
       if (htab->etab.dynamic_sections_created
 	  && (info->shared
 	      || (eh->dynindx != -1
 		  && !eh->forced_local)))
 	{
 	  htab->srelgot->size += sizeof (Elf32_External_Rela);
+	  if ((hh->tls_type & (GOT_TLS_GD|GOT_TLS_IE)) == (GOT_TLS_GD|GOT_TLS_IE))
+	    htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
+	  else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
+	    htab->srelgot->size += sizeof (Elf32_External_Rela);
 	}
     }
   else
@@ -2181,6 +2300,7 @@ elf32_hppa_size_dynamic_sections (bfd *o
       bfd_size_type locsymcount;
       Elf_Internal_Shdr *symtab_hdr;
       asection *srel;
+      char *local_tls_type;
 
       if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
 	continue;
@@ -2219,6 +2339,7 @@ elf32_hppa_size_dynamic_sections (bfd *o
       symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
       locsymcount = symtab_hdr->sh_info;
       end_local_got = local_got + locsymcount;
+      local_tls_type = hppa_elf_local_got_tls_type (ibfd);
       sec = htab->sgot;
       srel = htab->srelgot;
       for (; local_got < end_local_got; ++local_got)
@@ -2227,11 +2348,23 @@ elf32_hppa_size_dynamic_sections (bfd *o
 	    {
 	      *local_got = sec->size;
 	      sec->size += GOT_ENTRY_SIZE;
+	      if ((*local_tls_type & (GOT_TLS_GD|GOT_TLS_IE)) == (GOT_TLS_GD|GOT_TLS_IE))
+		sec->size += 2 * GOT_ENTRY_SIZE;
+	      else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
+		sec->size += GOT_ENTRY_SIZE;
 	      if (info->shared) 
-		srel->size += sizeof (Elf32_External_Rela);
+	        {
+		  srel->size += sizeof (Elf32_External_Rela);
+		  if ((*local_tls_type & (GOT_TLS_GD|GOT_TLS_IE)) == (GOT_TLS_GD|GOT_TLS_IE))
+		    srel->size += 2 * sizeof (Elf32_External_Rela);
+		  else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
+		    srel->size += sizeof (Elf32_External_Rela);
+	        }
 	    }
 	  else
 	    *local_got = (bfd_vma) -1;
+
+	  ++local_tls_type;
 	}
 
       local_plt = end_local_got;
@@ -2260,6 +2393,17 @@ elf32_hppa_size_dynamic_sections (bfd *o
 	    }
 	}
     }
+  
+  if (htab->tls_ldm_got.refcount > 0)
+    {
+      /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32
+	 relocs.  */
+      htab->tls_ldm_got.offset = htab->sgot->size;
+      htab->sgot->size += (GOT_ENTRY_SIZE * 2);
+      htab->srelgot->size += sizeof (Elf32_External_Rela);
+    }
+  else
+    htab->tls_ldm_got.offset = -1;
 
   /* Do all the .plt entries without relocs first.  The dynamic linker
      uses the last .plt reloc to find the end of the .plt (and hence
@@ -2670,7 +2814,7 @@ get_local_syms (bfd *output_bfd, bfd *in
 		  struct elf32_hppa_stub_hash_entry *hsh;
 
 		  sec = hh->eh.root.u.def.section;
-		  stub_name = hh->eh.root.root.string;
+		  stub_name = hh_name (hh);
 		  hsh = hppa_stub_hash_lookup (&htab->bstab,
 						      stub_name,
 						      FALSE, FALSE);
@@ -3104,6 +3248,35 @@ elf32_hppa_build_stubs (struct bfd_link_
   return TRUE;
 }
 
+/* Return the base vma address which should be subtracted from the real
+   address when resolving a dtpoff relocation.  
+   This is PT_TLS segment p_vaddr.  */
+
+static bfd_vma
+dtpoff_base (struct bfd_link_info *info)
+{
+  /* If tls_sec is NULL, we should have signalled an error already.  */
+  if (elf_hash_table (info)->tls_sec == NULL)
+    return 0;
+  return elf_hash_table (info)->tls_sec->vma;
+}
+
+/* Return the relocation value for R_PARISC_TLS_TPOFF*..  */
+
+static bfd_vma
+tpoff (struct bfd_link_info *info, bfd_vma address)
+{
+  struct elf_link_hash_table *htab = elf_hash_table (info);
+
+  /* If tls_sec is NULL, we should have signalled an error already.  */
+  if (htab->tls_sec == NULL)
+    return 0;
+  /* hppa TLS ABI is variant I and static TLS block start just after 
+     tcbhead structure which has 2 pointer fields.  */
+  return (address - htab->tls_sec->vma 
+	  + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
+}
+
 /* Perform a final link.  */
 
 static bfd_boolean
@@ -3315,6 +3488,12 @@ final_link_relocate (asection *input_sec
     case R_PARISC_DLTIND21L:
     case R_PARISC_DLTIND14R:
     case R_PARISC_DLTIND14F:
+    case R_PARISC_TLS_GD21L:
+    case R_PARISC_TLS_GD14R:
+    case R_PARISC_TLS_LDM21L:
+    case R_PARISC_TLS_LDM14R:
+    case R_PARISC_TLS_IE21L:
+    case R_PARISC_TLS_IE14R:
       value -= elf_gp (input_section->output_section->owner);
       break;
 
@@ -3342,6 +3521,9 @@ final_link_relocate (asection *input_sec
     case R_PARISC_DLTIND14F:
     case R_PARISC_SEGBASE:
     case R_PARISC_SEGREL32:
+    case R_PARISC_TLS_DTPMOD32:
+    case R_PARISC_TLS_DTPOFF32:
+    case R_PARISC_TLS_TPREL32:
       r_field = e_fsel;
       break;
 
@@ -3353,6 +3535,11 @@ final_link_relocate (asection *input_sec
 
     case R_PARISC_DIR21L:
     case R_PARISC_DPREL21L:
+    case R_PARISC_TLS_GD21L:
+    case R_PARISC_TLS_LDM21L:
+    case R_PARISC_TLS_LDO21L:
+    case R_PARISC_TLS_IE21L:
+    case R_PARISC_TLS_LE21L:
       r_field = e_lrsel;
       break;
 
@@ -3366,6 +3553,11 @@ final_link_relocate (asection *input_sec
     case R_PARISC_DIR17R:
     case R_PARISC_DIR14R:
     case R_PARISC_DPREL14R:
+    case R_PARISC_TLS_GD14R:
+    case R_PARISC_TLS_LDM14R:
+    case R_PARISC_TLS_LDO14R:
+    case R_PARISC_TLS_IE14R:
+    case R_PARISC_TLS_LE14R:
       r_field = e_rrsel;
       break;
 
@@ -3460,6 +3652,14 @@ final_link_relocate (asection *input_sec
   return bfd_reloc_ok;
 }
 
+static int
+elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
+				int r_type, int is_local ATTRIBUTE_UNUSED)
+{
+  /* For now we don't support linker optimizations.  */
+  return r_type;
+}
+
 /* Relocate an HPPA ELF section.  */
 
 static bfd_boolean
@@ -3546,7 +3746,7 @@ elf32_hppa_relocate_section (bfd *output
 		  && eh->type == STT_PARISC_MILLI)
 		{
 		  if (! info->callbacks->undefined_symbol
-		      (info, eh->root.root.string, input_bfd,
+		      (info, eh_name (eh), input_bfd,
 		       input_section, rela->r_offset, FALSE))
 		    return FALSE;
 		  warned_undef = TRUE;
@@ -3875,6 +4075,198 @@ elf32_hppa_relocate_section (bfd *output
 	      bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
 	    }
 	  break;
+	  
+	case R_PARISC_TLS_LDM21L:
+	case R_PARISC_TLS_LDM14R:
+	  {
+	    bfd_vma off;
+	
+	    off = htab->tls_ldm_got.offset;
+	    if (off & 1)
+	      off &= ~1;
+	    else
+	      {
+		Elf_Internal_Rela outrel;
+		bfd_byte *loc;
+
+		outrel.r_offset = (off 
+				   + htab->sgot->output_section->vma
+				   + htab->sgot->output_offset);
+		outrel.r_addend = 0;
+		outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
+		loc = htab->srelgot->contents; 
+		loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
+
+		bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+		htab->tls_ldm_got.offset |= 1;
+	      }
+
+	    /* Add the base of the GOT to the relocation value.  */
+	    relocation = (off
+			  + htab->sgot->output_offset
+			  + htab->sgot->output_section->vma);
+
+	    break;
+	  }
+
+	case R_PARISC_TLS_LDO21L:
+	case R_PARISC_TLS_LDO14R:
+	  relocation -= dtpoff_base (info);
+	  break;
+
+	case R_PARISC_TLS_GD21L:
+	case R_PARISC_TLS_GD14R:
+	case R_PARISC_TLS_IE21L:
+	case R_PARISC_TLS_IE14R:
+	  {
+	    bfd_vma off;
+	    int indx;
+	    char tls_type;
+
+	    indx = 0;
+	    if (hh != NULL)
+	      {
+	        bfd_boolean dyn;
+	        dyn = htab->etab.dynamic_sections_created;
+
+		if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh)
+		    && (!info->shared
+			|| !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
+		  {
+		    indx = hh->eh.dynindx;
+		  }
+		off = hh->eh.got.offset;
+		tls_type = hh->tls_type;
+	      }
+	    else
+	      {
+		off = local_got_offsets[r_symndx];
+		tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
+	      }
+
+	    if (tls_type == GOT_UNKNOWN)
+	      abort();
+
+	    if ((off & 1) != 0)
+	      off &= ~1;
+	    else
+	      {
+		bfd_boolean need_relocs = FALSE;
+		Elf_Internal_Rela outrel;
+		bfd_byte *loc = NULL;
+		int cur_off = off;
+
+	        /* The GOT entries have not been initialized yet.  Do it
+	           now, and emit any relocations.  If both an IE GOT and a
+	           GD GOT are necessary, we emit the GD first.  */
+
+		if ((info->shared || indx != 0)
+		    && (hh == NULL
+			|| ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
+			|| hh->eh.root.type != bfd_link_hash_undefweak))
+		  {
+		    need_relocs = TRUE;
+		    loc = htab->srelgot->contents; 
+		    /* FIXME (CAO): Should this be reloc_count++ ? */
+		    loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
+		  }
+
+		if (tls_type & GOT_TLS_GD)
+		  {
+		    if (need_relocs)
+		      {
+			outrel.r_offset = (cur_off
+					   + htab->sgot->output_section->vma
+					   + htab->sgot->output_offset);
+			outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
+			outrel.r_addend = 0;
+			bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
+			bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+			htab->srelgot->reloc_count++;
+			loc += sizeof (Elf32_External_Rela);
+
+			if (indx == 0)
+			  bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
+				      htab->sgot->contents + cur_off + 4);
+			else
+			  {
+			    bfd_put_32 (output_bfd, 0,
+					htab->sgot->contents + cur_off + 4);
+			    outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
+			    outrel.r_offset += 4;
+			    bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
+			    htab->srelgot->reloc_count++;
+			    loc += sizeof (Elf32_External_Rela);
+			  }
+		      }
+		    else
+		      {
+		        /* If we are not emitting relocations for a
+		           general dynamic reference, then we must be in a
+		           static link or an executable link with the
+		           symbol binding locally.  Mark it as belonging
+		           to module 1, the executable.  */
+		        bfd_put_32 (output_bfd, 1,
+				    htab->sgot->contents + cur_off);
+		        bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
+				    htab->sgot->contents + cur_off + 4);
+		      }
+
+
+		    cur_off += 8;
+		  }
+
+		if (tls_type & GOT_TLS_IE)
+		  {
+		    if (need_relocs)
+		      {
+			outrel.r_offset = (cur_off
+					   + htab->sgot->output_section->vma
+					   + htab->sgot->output_offset);
+			outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
+
+			if (indx == 0)
+			  outrel.r_addend = relocation - dtpoff_base (info);
+			else
+			  outrel.r_addend = 0;
+
+			bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+			htab->srelgot->reloc_count++;
+			loc += sizeof (Elf32_External_Rela);
+		      }
+		    else
+		      bfd_put_32 (output_bfd, tpoff (info, relocation),
+				  htab->sgot->contents + cur_off);
+
+		    cur_off += 4;
+		  }
+
+		if (hh != NULL)
+		  hh->eh.got.offset |= 1;
+		else
+		  local_got_offsets[r_symndx] |= 1;
+	      }
+
+	    if ((tls_type & GOT_TLS_GD)
+	  	&& r_type != R_PARISC_TLS_GD21L
+	  	&& r_type != R_PARISC_TLS_GD14R)
+	      off += 2 * GOT_ENTRY_SIZE;
+
+	    /* Add the base of the GOT to the relocation value.  */
+	    relocation = (off
+			  + htab->sgot->output_offset
+			  + htab->sgot->output_section->vma);
+
+	    break;
+	  }
+
+	case R_PARISC_TLS_LE21L:
+	case R_PARISC_TLS_LE14R:
+	  {
+	    relocation = tpoff (info, relocation);
+	    break;
+	  }
+	  break;
 
 	default:
 	  break;
@@ -3887,7 +4279,7 @@ elf32_hppa_relocate_section (bfd *output
 	continue;
 
       if (hh != NULL)
-	sym_name = hh->eh.root.root.string;
+	sym_name = hh_name (hh);
       else
 	{
 	  sym_name = bfd_elf_string_from_elf_section (input_bfd,
@@ -3996,7 +4388,9 @@ elf32_hppa_finish_dynamic_symbol (bfd *o
 	}
     }
 
-  if (eh->got.offset != (bfd_vma) -1)
+  if (eh->got.offset != (bfd_vma) -1
+      && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
+      && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
     {
       /* This symbol has an entry in the global offset table.  Set it
 	 up.  */
@@ -4057,8 +4451,8 @@ elf32_hppa_finish_dynamic_symbol (bfd *o
     }
 
   /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute.  */
-  if (eh->root.root.string[0] == '_'
-      && (strcmp (eh->root.root.string, "_DYNAMIC") == 0
+  if (eh_name (eh)[0] == '_'
+      && (strcmp (eh_name (eh), "_DYNAMIC") == 0
 	  || eh == htab->etab.hgot))
     {
       sym->st_shndx = SHN_ABS;
@@ -4073,6 +4467,17 @@ elf32_hppa_finish_dynamic_symbol (bfd *o
 static enum elf_reloc_type_class
 elf32_hppa_reloc_type_class (const Elf_Internal_Rela *rela)
 {
+  /* Handle TLS relocs first; we don't want them to be marked
+     relative by the "if (ELF32_R_SYM (rela->r_info) == 0)"
+     check below.  */
+  switch ((int) ELF32_R_TYPE (rela->r_info))
+    {
+      case R_PARISC_TLS_DTPMOD32:
+      case R_PARISC_TLS_DTPOFF32:
+      case R_PARISC_TLS_TPREL32:
+        return reloc_class_normal;
+    }
+
   if (ELF32_R_SYM (rela->r_info) == 0)
     return reloc_class_relative;
 
Index: gas/config/tc-hppa.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-hppa.c,v
retrieving revision 1.129
diff -u -p -r1.129 tc-hppa.c
--- gas/config/tc-hppa.c	25 Nov 2005 02:08:22 -0000	1.129
+++ gas/config/tc-hppa.c	8 Apr 2006 21:53:35 -0000
@@ -1215,6 +1215,26 @@ static struct default_space_dict pa_def_
   ((exp).X_op == O_subtract			\
    && strcmp (S_GET_NAME ((exp).X_op_symbol), "$PIC_pcrel$0") == 0)
 
+#define is_tls_gdidx(exp)			\
+  ((exp).X_op == O_subtract			\
+   && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_gdidx$") == 0)
+
+#define is_tls_ldidx(exp)			\
+  ((exp).X_op == O_subtract			\
+   && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_ldidx$") == 0)
+
+#define is_tls_dtpoff(exp)			\
+  ((exp).X_op == O_subtract			\
+   && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_dtpoff$") == 0)
+
+#define is_tls_ieoff(exp)			\
+  ((exp).X_op == O_subtract			\
+   && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_ieoff$") == 0)
+
+#define is_tls_leoff(exp)			\
+  ((exp).X_op == O_subtract			\
+   && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_leoff$") == 0)
+
 /* We need some complex handling for stabs (sym1 - sym2).  Luckily, we'll
    always be able to reduce the expression to a constant, so we don't
    need real complex handling yet.  */
@@ -1380,7 +1400,12 @@ fix_new_hppa (frag, where, size, add_sym
      it now so as not to confuse write.c.  Ditto for $PIC_pcrel$0.  */
   if (new_fix->fx_subsy
       && (strcmp (S_GET_NAME (new_fix->fx_subsy), "$global$") == 0
-	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$PIC_pcrel$0") == 0))
+	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$PIC_pcrel$0") == 0
+	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$tls_gdidx$") == 0 
+	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$tls_ldidx$") == 0 
+	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$tls_dtpoff$") == 0
+	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$tls_ieoff$") == 0
+	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$tls_leoff$") == 0))
     new_fix->fx_subsy = NULL;
 }
 
@@ -1412,6 +1437,18 @@ cons_fix_new_hppa (frag, where, size, ex
     rel_type = R_HPPA_GOTOFF;
   else if (is_PC_relative (*exp))
     rel_type = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+  else if (is_tls_gdidx (*exp))
+    rel_type = R_PARISC_TLS_GD21L;
+  else if (is_tls_ldidx (*exp))
+    rel_type = R_PARISC_TLS_LDM21L;
+  else if (is_tls_dtpoff (*exp))
+    rel_type = R_PARISC_TLS_LDO21L;
+  else if (is_tls_ieoff (*exp))
+    rel_type = R_PARISC_TLS_IE21L;
+  else if (is_tls_leoff (*exp))
+    rel_type = R_PARISC_TLS_LE21L;
+#endif
   else if (is_complex (*exp))
     rel_type = R_HPPA_COMPLEX;
   else
@@ -2974,6 +3011,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 11;
@@ -3093,6 +3142,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 14;
@@ -3123,6 +3184,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 14;
@@ -3147,6 +3220,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 14;
@@ -3171,6 +3256,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 21;
@@ -3196,6 +3293,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 14;
@@ -3222,6 +3331,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 14;
@@ -3248,6 +3369,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 14;
@@ -4658,6 +4791,25 @@ md_apply_fix (fixP, valP, seg)
       return;
     }
 
+#ifdef OBJ_ELF
+  switch (fixP->fx_r_type)
+    {
+      case R_PARISC_TLS_GD21L:
+      case R_PARISC_TLS_GD14R:
+      case R_PARISC_TLS_LDM21L:
+      case R_PARISC_TLS_LDM14R:
+      case R_PARISC_TLS_LE21L:
+      case R_PARISC_TLS_LE14R:
+      case R_PARISC_TLS_IE21L:
+      case R_PARISC_TLS_IE14R:
+        if (fixP->fx_addsy)
+	  S_SET_THREAD_LOCAL (fixP->fx_addsy);
+	break;
+      default:
+	break;
+    }
+#endif
+
   /* Insert the relocation.  */
   bfd_put_32 (stdoutput, insn, fixpos);
 }
Index: gas/config/tc-hppa.h
===================================================================
RCS file: /cvs/src/src/gas/config/tc-hppa.h,v
retrieving revision 1.30
diff -u -p -r1.30 tc-hppa.h
--- gas/config/tc-hppa.h	11 Aug 2005 01:25:25 -0000	1.30
+++ gas/config/tc-hppa.h	8 Apr 2006 21:53:35 -0000
@@ -175,7 +175,12 @@ int hppa_fix_adjustable PARAMS((struct f
 	|| (S_GET_SEGMENT (sym) == &bfd_abs_section \
 	    && ! S_IS_EXTERNAL (sym)) \
 	|| strcmp (S_GET_NAME (sym), "$global$") == 0 \
-	|| strcmp (S_GET_NAME (sym), "$PIC_pcrel$0") == 0) \
+	|| strcmp (S_GET_NAME (sym), "$PIC_pcrel$0") == 0 \
+	|| strcmp (S_GET_NAME (sym), "$tls_gdidx$") == 0 \
+	|| strcmp (S_GET_NAME (sym), "$tls_ldidx$") == 0 \
+	|| strcmp (S_GET_NAME (sym), "$tls_dtpoff$") == 0 \
+	|| strcmp (S_GET_NAME (sym), "$tls_ieoff$") == 0 \
+	|| strcmp (S_GET_NAME (sym), "$tls_leoff$") == 0) \
       punt = 1; \
   }
 
Index: include/elf/hppa.h
===================================================================
RCS file: /cvs/src/src/include/elf/hppa.h,v
retrieving revision 1.20
diff -u -p -r1.20 hppa.h
--- include/elf/hppa.h	20 Mar 2006 01:07:29 -0000	1.20
+++ include/elf/hppa.h	8 Apr 2006 21:53:37 -0000
@@ -480,8 +480,28 @@ RELOC_NUMBER (R_PARISC_LTOFF_TP16DF,   2
 RELOC_NUMBER (R_PARISC_GNU_VTENTRY,    232)
 RELOC_NUMBER (R_PARISC_GNU_VTINHERIT,  233)
 
+RELOC_NUMBER (R_PARISC_TLS_GD21L,      234)
+RELOC_NUMBER (R_PARISC_TLS_GD14R,      235)
+RELOC_NUMBER (R_PARISC_TLS_GDCALL,     236)
+RELOC_NUMBER (R_PARISC_TLS_LDM21L,     237)
+RELOC_NUMBER (R_PARISC_TLS_LDM14R,     238)
+RELOC_NUMBER (R_PARISC_TLS_LDMCALL,    239)
+RELOC_NUMBER (R_PARISC_TLS_LDO21L,     240)
+RELOC_NUMBER (R_PARISC_TLS_LDO14R,     241)
+RELOC_NUMBER (R_PARISC_TLS_DTPMOD32,   242)
+RELOC_NUMBER (R_PARISC_TLS_DTPMOD64,   243)
+RELOC_NUMBER (R_PARISC_TLS_DTPOFF32,   244)
+RELOC_NUMBER (R_PARISC_TLS_DTPOFF64,   245)
+
 END_RELOC_NUMBERS (R_PARISC_UNIMPLEMENTED)
 
+#define R_PARISC_TLS_LE21L     R_PARISC_TPREL21L
+#define R_PARISC_TLS_LE14R     R_PARISC_TPREL14R
+#define R_PARISC_TLS_IE21L     R_PARISC_LTOFF_TP21L
+#define R_PARISC_TLS_IE14R     R_PARISC_LTOFF_TP14R
+#define R_PARISC_TLS_TPREL32   R_PARISC_TPREL32
+#define R_PARISC_TLS_TPREL64   R_PARISC_TPREL64
+
 #ifndef RELOC_MACROS_GEN_FUNC
 typedef enum elf_hppa_reloc_type elf_hppa_reloc_type;
 #endif



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Subject: [parisc-linux] Q: TLS local dynamic case and zero initialized
	ti_offset?
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Xref: news.gmane.org gmane.linux.ports.parisc:23557

Randolph,

In the local dynamic case we emit one reloc R_PARISC_TLS_DTPMOD32.
This means that at runtime there is a GOT entry with an absoluate
address which points to a tls_index structure, which has it's
ti_module filled by the dynamic loader (after processing the DTPMOD32
reloc). The question I have is, does this tls_index appear in bss? Is
the offset ti_offset initialized to zero? The zero offset is required
since we want __tls_get_addr to return the start of the modules block,
so we can subsequently offset into that block without calling
__tls_get_addr again.

Cheers,
Carlos.
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Xref: news.gmane.org gmane.linux.ports.parisc:23558

On 4/9/06, Ingo Molnar <mingo@elte.hu> wrote:
> > Due to a complete lack of useful atomic operations on parisc, the way
> > I envisioned implementing the routines was serializing all futex ops
> > on a kernel spinlock. Since it's a userspace address, we couldn't use
> > an atomic hash unless we found the physical address behind it, so just
> > one spinlock would do... Of course, I'm probably missing something
> > critical here, though.
>
> if userspace doesnt do atomic ops then the solution should be relatively
> easy: make glibc always call into the kernel, and then the kernel-level
> futex.h ops can be implemented in a lockless manner (i.e. not even a
> spinlock is needed) and you'll get (pretty scalable) futex
> functionality. The in-kernel futex hash-bucket spinlocks take care of
> locking.

HPPA has a light-weight kernel syscall that does
atomic-compare-and-swap, and indeed this is what we use for our NPTL
implementation. We can use that *or* call into the kernel for
arbitration. The atomic-compare-and-swap also uses a hash-bucket of
spinlocks on SMP systems. We hash on a virtual address so it scales
nicely. Not forever though. Some analysis to see which is faster
should be done. I think we will always win with the light-weight
syscall.

Cheers,
Carlos.
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: [parisc-linux] [RFC] pselect/ppoll support
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Xref: news.gmane.org gmane.linux.ports.parisc:23559

First strike at adding TIF_RESTORE_SIGMASK support for the pselect/ppoll
system calls... Doesn't seem to work at all yet...

For instance, signals appear to be completely broken... Dunno why,
seems to work for other architectures...

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 7c95d76..22e3eed 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -32,6 +32,7 @@
 
 #include <asm/psw.h>
 #include <asm/assembly.h>	/* for LDREG/STREG defines */
+#include <asm/cache.h>
 #include <asm/pgtable.h>
 #include <asm/signal.h>
 #include <asm/unistd.h>
@@ -479,11 +480,7 @@
 	bb,>=,n		\pmd,_PxD_PRESENT_BIT,\fault
 	DEP		%r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */
 	copy		\pmd,%r9
-#ifdef CONFIG_64BIT
-	shld		%r9,PxD_VALUE_SHIFT,\pmd
-#else
-	shlw		%r9,PxD_VALUE_SHIFT,\pmd
-#endif
+	SHLREG		%r9,PxD_VALUE_SHIFT,\pmd
 	EXTR		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
 	DEP		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
 	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
@@ -962,11 +959,7 @@ intr_return:
 	/* shift left ____cacheline_aligned (aka L1_CACHE_BYTES) amount
 	** irq_stat[] is defined using ____cacheline_aligned.
 	*/
-#ifdef CONFIG_64BIT
-	shld	%r1, 6, %r20
-#else
-	shlw	%r1, 5, %r20
-#endif
+	SHLREG	%r1, L1_CACHE_SHIFT, %r20
 	add     %r19,%r20,%r19	/* now have &irq_stat[smp_processor_id()] */
 #endif /* CONFIG_SMP */
 
@@ -1071,7 +1064,7 @@ intr_do_preempt:
 	b	intr_restore		/* ssm PSW_SM_I done by intr_restore */
 #endif /* CONFIG_PREEMPT */
 
-	.import do_signal,code
+	.import do_notify_resume,code
 intr_do_signal:
 	/* 
 		This check is critical to having LWS
@@ -1088,14 +1081,13 @@ intr_do_signal:
 	CMPIB= 0,%r20,intr_restore /* backward */
 	nop
 
-	copy	%r0, %r24			/* unsigned long in_syscall */
-	copy	%r16, %r25			/* struct pt_regs *regs */
+	copy	%r0, %r25			/* unsigned long in_syscall */
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
 
-	BL	do_signal,%r2
-	copy	%r0, %r26			/* sigset_t *oldset = NULL */
+	BL	do_notify_resume,%r2
+	copy	%r16, %r26			/* struct pt_regs *regs */
 
 	b	intr_check_sig
 	nop
@@ -2028,32 +2020,6 @@ sys32_sigaltstack_wrapper:
 	nop
 #endif
 
-	.export sys_rt_sigsuspend_wrapper
-sys_rt_sigsuspend_wrapper:
-	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
-	ldo	TASK_REGS(%r1),%r24
-	reg_save %r24
-
-	STREG	%r2, -RP_OFFSET(%r30)
-#ifdef CONFIG_64BIT
-	ldo	FRAME_SIZE(%r30), %r30
-	b,l	sys_rt_sigsuspend,%r2
-	ldo	-16(%r30),%r29		/* Reference param save area */
-#else
-	bl	sys_rt_sigsuspend,%r2
-	ldo	FRAME_SIZE(%r30), %r30
-#endif
-
-	ldo	-FRAME_SIZE(%r30), %r30
-	LDREG	-RP_OFFSET(%r30), %r2
-
-	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
-	ldo	TASK_REGS(%r1),%r1
-	reg_restore %r1
-
-	bv	%r0(%r2)
-	nop
-
 	.export syscall_exit
 syscall_exit:
 
@@ -2108,11 +2074,7 @@ syscall_check_bh:
 	ldw     TI_CPU-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r26 /* cpu # */
 
 	/* shift left ____cacheline_aligned (aka L1_CACHE_BYTES) bits */
-#ifdef CONFIG_64BIT
-	shld	%r26, 6, %r20
-#else
-	shlw	%r26, 5, %r20
-#endif
+	SHLREG	%r26, L1_CACHE_SHIFT, %r20
 	add     %r19,%r20,%r19	/* now have &irq_stat[smp_processor_id()] */
 #endif /* CONFIG_SMP */
 
@@ -2264,23 +2226,21 @@ syscall_do_resched:
 	b       syscall_check_bh  /* if resched, we start over again */
 	nop
 
-	.import do_signal,code
+	.import do_notify_resume,code
 syscall_do_signal:
 	/* Save callee-save registers (for sigcontext).
 	   FIXME: After this point the process structure should be
 	   consistent with all the relevant state of the process
 	   before the syscall.  We need to verify this. */
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1 
-	ldo	TASK_REGS(%r1), %r25		/* struct pt_regs *regs */
-	reg_save %r25
-
-	ldi	1, %r24				/* unsigned long in_syscall */
+	ldo	TASK_REGS(%r1), %r26		/* struct pt_regs *regs */
+	reg_save %r26
 
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
-	BL	do_signal,%r2
-	copy	%r0, %r26			/* sigset_t *oldset = NULL */
+	BL	do_notify_resume,%r2
+	ldi	1, %r25				/* unsigned long in_syscall */
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
 	ldo	TASK_REGS(%r1), %r20		/* reload pt_regs */
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 413292f..9aa4af0 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -36,8 +36,7 @@
 #define DBG(x...)
 #endif
 
-#ifdef __LP64__
-
+#ifdef CONFIG_64BIT
 /* This function is needed to translate 32 bit pt_regs offsets in to
  * 64 bit pt_regs offsets.  For example, a 32 bit gdb under a 64 bit kernel
  * will request offset 12 if it wants gr3, but the lower 32 bits of
@@ -90,8 +89,8 @@ long arch_ptrace(struct task_struct *chi
 	case PTRACE_PEEKDATA: {
 		int copied;
 
-#ifdef __LP64__
-		if (personality(child->personality) == PER_LINUX32) {
+#ifdef CONFIG_64BIT
+		if (__is_compat_task(child)) {
 			unsigned int tmp;
 
 			addr &= 0xffffffffL;
@@ -122,8 +121,8 @@ long arch_ptrace(struct task_struct *chi
 	case PTRACE_POKETEXT: /* write the word at location addr. */
 	case PTRACE_POKEDATA:
 		ret = 0;
-#ifdef __LP64__
-		if (personality(child->personality) == PER_LINUX32) {
+#ifdef CONFIG_64BIT
+		if (__is_compat_task(child)) {
 			unsigned int tmp = (unsigned int)data;
 			DBG("sys_ptrace(POKE%s, %d, %lx, %lx)\n",
 				request == PTRACE_POKETEXT ? "TEXT" : "DATA",
@@ -145,8 +144,8 @@ long arch_ptrace(struct task_struct *chi
 	   processes, the kernel saves all regs on a syscall. */
 	case PTRACE_PEEKUSR: {
 		ret = -EIO;
-#ifdef __LP64__
-		if (personality(child->personality) == PER_LINUX32) {
+#ifdef CONFIG_64BIT
+		if (__is_compat_task(child)) {
 			unsigned int tmp;
 
 			if (addr & (sizeof(int)-1))
@@ -204,8 +203,8 @@ long arch_ptrace(struct task_struct *chi
 			ret = 0;
 			goto out_tsk;
 		}
-#ifdef __LP64__
-		if (personality(child->personality) == PER_LINUX32) {
+#ifdef CONFIG_64BIT
+		if (__is_compat_task(child)) {
 			if (addr & (sizeof(int)-1))
 				goto out_tsk;
 			if ((addr = translate_usr_offset(addr)) < 0)
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 05767e8..5a1e21e 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -4,6 +4,7 @@
  *
  *  Copyright (C) 2000 David Huggins-Daines <dhd@debian.org>
  *  Copyright (C) 2000 Linuxcare, Inc.
+ *  Copyright (C) 2006 Kyle McMartin <kyle@parisc-linux.org>
  *
  *  Based on the ia64, i386, and alpha versions.
  *
@@ -60,58 +61,13 @@
  * this. */
 #define A(__x)	((unsigned long)(__x))
 
-int do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall);
-
 /*
  * Atomically swap in the new signal mask, and wait for a signal.
  */
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 #include "sys32.h"
 #endif
 
-asmlinkage int
-sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize, struct pt_regs *regs)
-{
-	sigset_t saveset, newset;
-#ifdef __LP64__
-	compat_sigset_t newset32;
-
-	if(personality(current->personality) == PER_LINUX32){
-		/* XXX: Don't preclude handling different sized sigset_t's.  */
-		if (sigsetsize != sizeof(compat_sigset_t))
-			return -EINVAL;
-		if (copy_from_user(&newset32, (compat_sigset_t __user *)unewset, sizeof(newset32)))
-			return -EFAULT;
-		sigset_32to64(&newset,&newset32);
-		
-	} else 
-#endif
-	{
-		/* XXX: Don't preclude handling different sized sigset_t's.  */
-		if (sigsetsize != sizeof(sigset_t))
-			return -EINVAL;
-	
-		if (copy_from_user(&newset, unewset, sizeof(newset)))
-			return -EFAULT;
-	}
-
-	sigdelsetmask(&newset, ~_BLOCKABLE);
-
-	spin_lock_irq(&current->sighand->siglock);
-	saveset = current->blocked;
-	current->blocked = newset;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	regs->gr[28] = -EINTR;
-	while (1) {
-		current->state = TASK_INTERRUPTIBLE;
-		schedule();
-		if (do_signal(&saveset, regs, 1))
-			return -EINTR;
-	}
-}
-
 /*
  * Do a signal return - restore sigcontext.
  */
@@ -149,11 +105,11 @@ sys_rt_sigreturn(struct pt_regs *regs, i
 	sigset_t set;
 	unsigned long usp = (regs->gr[30] & ~(0x01UL));
 	unsigned long sigframe_size = PARISC_RT_SIGFRAME_SIZE;
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	compat_sigset_t compat_set;
 	struct compat_rt_sigframe __user * compat_frame;
 	
-	if(personality(current->personality) == PER_LINUX32)
+	if (__is_compat_task(current))
 		sigframe_size = PARISC_RT_SIGFRAME_SIZE32;
 #endif
 
@@ -163,10 +119,10 @@ sys_rt_sigreturn(struct pt_regs *regs, i
 		(usp - sigframe_size);
 	DBG(2,"sys_rt_sigreturn: frame is %p\n", frame);
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	compat_frame = (struct compat_rt_sigframe __user *)frame;
 	
-	if(personality(current->personality) == PER_LINUX32){
+	if (__is_compat_task(current)) {
 		DBG(2,"sys_rt_sigreturn: ELF32 process.\n");
 		if (__copy_from_user(&compat_set, &compat_frame->uc.uc_sigmask, sizeof(compat_set)))
 			goto give_sigsegv;
@@ -185,10 +141,10 @@ sys_rt_sigreturn(struct pt_regs *regs, i
 	spin_unlock_irq(&current->sighand->siglock);
 
 	/* Good thing we saved the old gr[30], eh? */
-#ifdef __LP64__
-	if(personality(current->personality) == PER_LINUX32){
+#ifdef CONFIG_64BIT
+	if (__is_compat_task(current)) {
 		DBG(1,"sys_rt_sigreturn: compat_frame->uc.uc_mcontext 0x%p\n",
-				&compat_frame->uc.uc_mcontext);
+		    &compat_frame->uc.uc_mcontext);
 // FIXME: Load upper half from register file
 		if (restore_sigcontext32(&compat_frame->uc.uc_mcontext, 
 					&compat_frame->regs, regs))
@@ -297,12 +253,12 @@ setup_rt_frame(int sig, struct k_sigacti
 	unsigned long rp, usp;
 	unsigned long haddr, sigframe_size;
 	int err = 0;
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	compat_int_t compat_val;
 	struct compat_rt_sigframe __user * compat_frame;
 	compat_sigset_t compat_set;
 #endif
-	
+
 	usp = (regs->gr[30] & ~(0x01UL));
 	/*FIXME: frame_size parameter is unused, remove it. */
 	frame = get_sigframe(ka, usp, sizeof(*frame));
@@ -311,11 +267,10 @@ setup_rt_frame(int sig, struct k_sigacti
 	DBG(1,"setup_rt_frame: frame %p info %p\n", frame, info);
 
 	
-#ifdef __LP64__
-
+#ifdef CONFIG_64BIT
 	compat_frame = (struct compat_rt_sigframe __user *)frame;
 	
-	if(personality(current->personality) == PER_LINUX32) {
+	if (__is_compat_task(current)) {
 		DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &compat_frame->info);
 		err |= copy_siginfo_to_user32(&compat_frame->info, info);
 		DBG(1,"SETUP_RT_FRAME: 1\n");
@@ -391,8 +346,8 @@ setup_rt_frame(int sig, struct k_sigacti
 
 	haddr = A(ka->sa.sa_handler);
 	/* The sa_handler may be a pointer to a function descriptor */
-#ifdef __LP64__
-	if(personality(current->personality) == PER_LINUX32) {
+#ifdef CONFIG_64BIT
+	if (__is_compat_task(current)) {
 #endif
 		if (haddr & PA_PLABEL_FDESC) {
 			Elf32_Fdesc fdesc;
@@ -406,7 +361,7 @@ setup_rt_frame(int sig, struct k_sigacti
 			haddr = fdesc.addr;
 			regs->gr[19] = fdesc.gp;
 		}
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	} else {
 		Elf64_Fdesc fdesc;
 		Elf64_Fdesc __user *ufdesc = (Elf64_Fdesc __user *)A(haddr & ~3);
@@ -426,20 +381,20 @@ setup_rt_frame(int sig, struct k_sigacti
 	/* The syscall return path will create IAOQ values from r31.
 	 */
 	sigframe_size = PARISC_RT_SIGFRAME_SIZE;
-#ifdef __LP64__
-	if(personality(current->personality) == PER_LINUX32)
+#ifdef CONFIG_64BIT
+	if (__is_compat_task(current))
 		sigframe_size = PARISC_RT_SIGFRAME_SIZE32;
 #endif
 	if (in_syscall) {
 		regs->gr[31] = haddr;
-#ifdef __LP64__
-		if(personality(current->personality) == PER_LINUX)
+#ifdef CONFIG_64BIT
+		if (__is_native_task(current))
 			sigframe_size |= 1;
 #endif
 	} else {
 		unsigned long psw = USER_PSW;
-#ifdef __LP64__
-		if(personality(current->personality) == PER_LINUX)
+#ifdef CONFIG_64BIT
+		if (__is_native_task(current))
 			psw |= PSW_W;
 #endif
 
@@ -463,8 +418,8 @@ setup_rt_frame(int sig, struct k_sigacti
 	regs->gr[2]  = rp;                /* userland return pointer */
 	regs->gr[26] = sig;               /* signal number */
 	
-#ifdef __LP64__
-	if(personality(current->personality) == PER_LINUX32){
+#ifdef CONFIG_64BIT
+	if (__is_compat_task(current)) {
 		regs->gr[25] = A(&compat_frame->info); /* siginfo pointer */
 		regs->gr[24] = A(&compat_frame->uc);   /* ucontext pointer */
 	} else
@@ -485,12 +440,12 @@ setup_rt_frame(int sig, struct k_sigacti
 	       current->comm, current->pid, frame, regs->gr[30],
 	       regs->iaoq[0], regs->iaoq[1], rp);
 
-	return 1;
+	return 0;
 
 give_sigsegv:
 	DBG(1,"setup_rt_frame: sending SIGSEGV\n");
 	force_sigsegv(sig, current);
-	return 0;
+	return -EFAULT;
 }
 
 /*
@@ -499,22 +454,97 @@ give_sigsegv:
 
 static long
 handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
-		sigset_t *oldset, struct pt_regs *regs, int in_syscall)
+	      sigset_t *oldset, struct pt_regs *regs, int in_syscall)
 {
+	int ret;
+	unsigned long flags;
+
 	DBG(1,"handle_signal: sig=%ld, ka=%p, info=%p, oldset=%p, regs=%p\n",
 	       sig, ka, info, oldset, regs);
+
+	/* Restart a system call if necessary. */
+	if (in_syscall) {
+		/* Check the return code */
+		switch (regs->gr[28]) {
+		case -ERESTART_RESTARTBLOCK:
+			current_thread_info()->restart_block.fn = do_no_restart_syscall;
+		case -ERESTARTNOHAND:
+			DBG(1,"ERESTARTNOHAND: returning -EINTR\n");
+			regs->gr[28] = -EINTR;
+			break;
+
+		case -ERESTARTSYS:
+			if (!(ka->sa.sa_flags & SA_RESTART)) {
+				DBG(1,"ERESTARTSYS: putting -EINTR\n");
+				regs->gr[28] = -EINTR;
+				break;
+			}
+			/* fallthrough */
+		case -ERESTARTNOINTR:
+			/* A syscall is just a branch, so all
+			   we have to do is fiddle the return pointer. */
+			regs->gr[31] -= 8; /* delayed branching */
+			/* Preserve original r28. */
+			regs->gr[28] = regs->orig_r28;
+			break;
+		}
+	}
 	
 	/* Set up the stack frame */
-	if (!setup_rt_frame(sig, ka, info, oldset, regs, in_syscall))
-		return 0;
+	ret = setup_rt_frame(sig, ka, info, oldset, regs, in_syscall);
 
-	spin_lock_irq(&current->sighand->siglock);
-	sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
-	if (!(ka->sa.sa_flags & SA_NODEFER))
-		sigaddset(&current->blocked,sig);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-	return 1;
+	if (ret == 0) {
+		spin_lock_irqsave(&current->sighand->siglock, flags);
+		sigorsets(&current->blocked, &current->blocked, &ka->sa.sa_mask);
+		if (!(ka->sa.sa_flags & SA_NODEFER))
+			sigaddset(&current->blocked,sig);
+		recalc_sigpending();
+		spin_unlock_irqrestore(&current->sighand->siglock, flags);
+	}
+
+	return ret;
+}
+
+/* Setup a trampoline to restart the syscall
+ * with __NR_restart_syscall
+ *
+ *  0: <return address (orig r31)>
+ *  4: <2nd half for 64-bit>
+ *  8: ldw 0(%sp), %r31
+ * 12: be 0x100(%sr2, %r0)
+ * 16: ldi __NR_restart_syscall, %r20
+ */
+static void setup_restart_syscall_tramp(struct pt_regs *regs)
+{
+	unsigned int *usp = (unsigned int *)regs->gr[30];
+
+#ifdef CONFIG_64BIT
+	put_user(regs->gr[31] >> 32, &usp[0]);
+	put_user(regs->gr[31] & 0xffffffff, &usp[1]);
+	put_user(0x0fc010df, &usp[2]);
+#else
+	put_user(regs->gr[31], &usp[0]);
+	put_user(0x0fc0109f, &usp[2]);
+#endif
+	put_user(0xe0008200, &usp[3]);
+	put_user(0x34140000, &usp[4]);
+
+	/* Stack is 64-byte aligned, and we only need
+	 * to flush 1 cache line.
+	 * Flushing one cacheline is cheap.
+	 * "sync" on bigger (> 4 way) boxes is not.
+	 */
+	asm("fdc %%r0(%%sr3, %0)\n"
+	    "sync\n"
+	    "fic %%r0(%%sr3, %0)\n"
+	    "sync\n"
+	    : : "r"(regs->gr[30]));
+
+	regs->gr[31] = regs->gr[30] + 8;
+	/* Preserve original r28. */
+	regs->gr[28] = regs->orig_r28;
+
+	return;
 }
 
 /*
@@ -529,130 +559,91 @@ handle_signal(unsigned long sig, siginfo
  * us due to the magic of delayed branching.
  */
 
-asmlinkage int
-do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall)
+static void
+parisc_do_signal(struct pt_regs *regs, int in_syscall)
 {
 	siginfo_t info;
+	sigset_t *oldset;
 	struct k_sigaction ka;
 	int signr;
 
 	DBG(1,"\ndo_signal: oldset=0x%p, regs=0x%p, sr7 %#lx, in_syscall=%d\n",
 	       oldset, regs, regs->sr[7], in_syscall);
 
-	/* Everyone else checks to see if they are in kernel mode at
-	   this point and exits if that's the case.  I'm not sure why
-	   we would be called in that case, but for some reason we
-	   are. */
+	if (!user_mode(regs))
+		return;
 
-	if (!oldset)
+	if (test_thread_flag(TIF_RESTORE_SIGMASK))
+		oldset = &current->saved_sigmask;
+	else
 		oldset = &current->blocked;
 
 	DBG(1,"do_signal: oldset %08lx / %08lx\n", 
 		oldset->sig[0], oldset->sig[1]);
 
-
 	/* May need to force signal if handle_signal failed to deliver */
-	while (1) {
-	  
-		signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-		DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]); 
+	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
+	DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]); 
 	
-		if (signr <= 0)
-		  break;
-		
-		/* Restart a system call if necessary. */
-		if (in_syscall) {
-			/* Check the return code */
-			switch (regs->gr[28]) {
-		        case -ERESTART_RESTARTBLOCK:
-				current_thread_info()->restart_block.fn = do_no_restart_syscall;
-			case -ERESTARTNOHAND:
-				DBG(1,"ERESTARTNOHAND: returning -EINTR\n");
-				regs->gr[28] = -EINTR;
-				break;
-
-			case -ERESTARTSYS:
-				if (!(ka.sa.sa_flags & SA_RESTART)) {
-					DBG(1,"ERESTARTSYS: putting -EINTR\n");
-					regs->gr[28] = -EINTR;
-					break;
-				}
-			/* fallthrough */
-			case -ERESTARTNOINTR:
-				/* A syscall is just a branch, so all
-				   we have to do is fiddle the return pointer. */
-				regs->gr[31] -= 8; /* delayed branching */
-				/* Preserve original r28. */
-				regs->gr[28] = regs->orig_r28;
-				break;
-			}
-		}
+	if (signr > 0) {
 		/* Whee!  Actually deliver the signal.  If the
-		   delivery failed, we need to continue to iterate in
-		   this loop so we can deliver the SIGSEGV... */
-		if (handle_signal(signr, &info, &ka, oldset, regs, in_syscall)) {
+		 * delivery failed, we need to continue to iterate in
+		 * this loop so we can deliver the SIGSEGV...
+		 */
+		if (handle_signal(signr, &info, &ka, oldset, regs, in_syscall) == 0) {
 			DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n",
-				regs->gr[28]);
-			return 1;
+			    regs->gr[28]);
+			if (test_thread_flag(TIF_RESTORE_SIGMASK))
+				clear_thread_flag(TIF_RESTORE_SIGMASK);
+			return;
 		}
 	}
-	/* end of while(1) looping forever if we can't force a signal */
 
 	/* Did we come from a system call? */
 	if (in_syscall) {
 		/* Restart the system call - no handlers present */
-		if (regs->gr[28] == -ERESTART_RESTARTBLOCK) {
-			unsigned int *usp = (unsigned int *)regs->gr[30];
-
-			/* Setup a trampoline to restart the syscall
-			 * with __NR_restart_syscall
-			 *
-			 *  0: <return address (orig r31)>
-			 *  4: <2nd half for 64-bit>
-			 *  8: ldw 0(%sp), %r31
-			 * 12: be 0x100(%sr2, %r0)
-			 * 16: ldi __NR_restart_syscall, %r20
-			 */
-#ifndef __LP64__
-			put_user(regs->gr[31], &usp[0]);
-			put_user(0x0fc0109f, &usp[2]);
-#else
-			put_user(regs->gr[31] >> 32, &usp[0]);
-			put_user(regs->gr[31] & 0xffffffff, &usp[1]);
-			put_user(0x0fc010df, &usp[2]);
-#endif
-			put_user(0xe0008200, &usp[3]);
-			put_user(0x34140000, &usp[4]);
-
-			/* Stack is 64-byte aligned, and we only need
-			 * to flush 1 cache line.
-			 * Flushing one cacheline is cheap.
-			 * "sync" on bigger (> 4 way) boxes is not.
+		switch(regs->gr[28]) {
+		case -ERESTART_RESTARTBLOCK:
+			/* Install the restart syscall trampoline on the
+			 * userspace stack.
 			 */
-			asm("fdc %%r0(%%sr3, %0)\n"
-			    "sync\n"
-			    "fic %%r0(%%sr3, %0)\n"
-			    "sync\n"
-			    : : "r"(regs->gr[30]));
-
-			regs->gr[31] = regs->gr[30] + 8;
-			/* Preserve original r28. */
-			regs->gr[28] = regs->orig_r28;
-		} else if (regs->gr[28] == -ERESTARTNOHAND ||
-		           regs->gr[28] == -ERESTARTSYS ||
-		           regs->gr[28] == -ERESTARTNOINTR) {
+			setup_restart_syscall_tramp(regs);
+			break;
+		case -ERESTARTNOHAND:
+		case -ERESTARTSYS:
+		case -ERESTARTNOINTR:
 			/* Hooray for delayed branching.  We don't
-                           have to restore %r20 (the system call
-                           number) because it gets loaded in the delay
-                           slot of the branch external instruction. */
+			 * have to restore %r20 (the system call
+			 * number) because it gets loaded in the delay
+			 * slot of the branch external instruction.
+			 */
 			regs->gr[31] -= 8;
 			/* Preserve original r28. */
 			regs->gr[28] = regs->orig_r28;
+			break;
 		}
 	}
 	
 	DBG(1,"do_signal: Exit (not delivered), regs->gr[28] = %ld\n", 
 		regs->gr[28]);
 
-	return 0;
+	/* If there's no signal to deliver, we just put the saved
+	 * sigmask back.
+	 */
+	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+		clear_thread_flag(TIF_RESTORE_SIGMASK);
+		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+	}
+
+	return;
+}
+
+void do_notify_resume(struct pt_regs *regs, int in_syscall)
+{
+	/* Hooks go here. */
+	if (test_thread_flag(TIF_SIGPENDING) ||
+	    test_thread_flag(TIF_RESTORE_SIGMASK))
+		parisc_do_signal(regs, in_syscall);
+
+	return;
 }
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index bbeeb61..5744506 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -283,7 +283,7 @@
 	 * struct from a 32-bit user-space app.
 	 */
 	ENTRY_SAME(rt_sigqueueinfo)
-	ENTRY_SAME(rt_sigsuspend_wrapper) /* not really SAME -- see the code */
+	ENTRY_COMP(rt_sigsuspend)
 	ENTRY_SAME(chown)		/* 180 */
 	/* setsockopt() used by iptables: SO_SET_REPLACE/SO_SET_ADD_COUNTERS */
 	ENTRY_COMP(setsockopt)
@@ -377,8 +377,8 @@
 	ENTRY_SAME(inotify_init)
 	ENTRY_SAME(inotify_add_watch)	/* 270 */
 	ENTRY_SAME(inotify_rm_watch)
-	ENTRY_SAME(ni_syscall)		/* 271 ENTRY_COMP(pselect6) */
-	ENTRY_SAME(ni_syscall)		/* 272 ENTRY_COMP(ppoll) */
+	ENTRY_COMP(pselect6)
+	ENTRY_COMP(ppoll)
 	ENTRY_SAME(migrate_pages)
 	ENTRY_COMP(openat)		/* 275 */
 	ENTRY_SAME(mkdirat)
diff --git a/include/asm-parisc/assembly.h b/include/asm-parisc/assembly.h
index 3ce3440..00e387c 100644
--- a/include/asm-parisc/assembly.h
+++ b/include/asm-parisc/assembly.h
@@ -30,6 +30,7 @@
 #define LDREGM	ldd,mb
 #define STREGM	std,ma
 #define SHRREG  shrd
+#define SHLREG	shld
 #define RP_OFFSET	16
 #define FRAME_SIZE	128
 #define CALLEE_REG_FRAME_SIZE	144
@@ -39,7 +40,8 @@
 #define LDREGX  ldwx,s
 #define LDREGM	ldwm
 #define STREGM	stwm
-#define SHRREG  shr
+#define SHRREG  shrw
+#define SHLREG	shld
 #define RP_OFFSET	20
 #define FRAME_SIZE	64
 #define CALLEE_REG_FRAME_SIZE	128
diff --git a/include/asm-parisc/compat.h b/include/asm-parisc/compat.h
index 289624d..cea3c35 100644
--- a/include/asm-parisc/compat.h
+++ b/include/asm-parisc/compat.h
@@ -5,6 +5,7 @@
  */
 #include <linux/types.h>
 #include <linux/sched.h>
+#include <linux/personality.h>
 
 #define COMPAT_USER_HZ 100
 
@@ -149,4 +150,19 @@ static __inline__ void __user *compat_al
 	return (void __user *)regs->gr[30];
 }
 
+static inline int __is_compat_task(struct task_struct *t)
+{
+	return (personality(t->personality) == PER_LINUX32);
+}
+
+static inline int __is_native_task(struct task_struct *t)
+{
+	return (personality(t->personality) == PER_LINUX);
+}
+
+static inline int is_compat_task(void)
+{
+	return __is_compat_task(current);
+}
+
 #endif /* _ASM_PARISC_COMPAT_H */
diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h
index f2f83b0..5ae7b38 100644
--- a/include/asm-parisc/thread_info.h
+++ b/include/asm-parisc/thread_info.h
@@ -62,6 +62,7 @@ struct thread_info {
 #define TIF_POLLING_NRFLAG	4	/* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_32BIT               5       /* 32 bit binary */
 #define TIF_MEMDIE		6
+#define TIF_RESTORE_SIGMASK	7	/* restore signal mask in do_signal() */
 
 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
@@ -69,9 +70,10 @@ struct thread_info {
 #define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
 #define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
 #define _TIF_32BIT		(1 << TIF_32BIT)
+#define _TIF_RESTORE_SIGMASK	(1 << TIF_RESTORE_SIGMASK)
 
 #define _TIF_USER_WORK_MASK     (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING | \
-                                 _TIF_NEED_RESCHED)
+                                 _TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
 
 #endif /* __KERNEL__ */
 
diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
index c56fccb..452e9cb 100644
--- a/include/asm-parisc/unistd.h
+++ b/include/asm-parisc/unistd.h
@@ -950,6 +950,8 @@ type name(type1 arg1, type2 arg2, type3 
 #define __ARCH_WANT_SYS_SIGPENDING
 #define __ARCH_WANT_SYS_SIGPROCMASK
 #define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
+#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
 #endif
 
 /* mmap & mmap2 take 6 arguments */
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>>>>> "Grant" == Grant Grundler <grundler@parisc-linux.org> writes:

Grant,

>> PCI: resource not parented! [2000-2fff]
>> PCI: resource not parented! [fb000000-fb5fffff]

Grant> Which kernel version?

Sorry. This is 2.6.17-rc1-pa1, but I saw this problem with 2.6.16 and
late 2.6.15-rc* as well.

Grant> Wow! 2M? That's a fair chunk of space for a NIC.  Any special
Grant> about that RAM or what it's used for?  (Just curious)

Cassini looks like ad odd beast. RAM seems to be used at least to
download filters to the card, so the NIC can parse complete packets
and do a lot of ugly things, none of them being supported on Linux at
the moment (and probably won't ever). Have a look at
driver/net/cassini.[ch] if you really want to know... ;-)

>> 0000:02:02.0 SCSI storage controller: LSI Logic / Symbios Logic 53C896/897 (rev 07)
Grant> ...
>> Region 0: I/O ports at 12100 [size=256]
>> Region 1: Memory at fb405000 (64-bit, non-prefetchable) [size=1K]
>> Region 3: Memory at fb402000 (64-bit, non-prefetchable) [size=8K]

Grant> Is CONFIG_SCSI_SYM53C8XX_MMIO enabled in your kernel?
Grant> (again just curious)

Indeed:

maz@ashes:~$ zgrep SYM53C8XX /proc/config.gz
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y

If there's anything you want me to test, feel free to ask. This is an
expandable box, and I can reboot it remotely.

Thanks,

	M.
-- 
And if you don't know where you're going, any road will take you there...
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Subject: [parisc-linux] Re: Q: TLS local dynamic case and zero initialized
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> In the local dynamic case we emit one reloc R_PARISC_TLS_DTPMOD32.
> This means that at runtime there is a GOT entry with an absoluate
> address which points to a tls_index structure, which has it's
> ti_module filled by the dynamic loader (after processing the DTPMOD32
> reloc). The question I have is, does this tls_index appear in bss? Is
> the offset ti_offset initialized to zero? The zero offset is required
> since we want __tls_get_addr to return the start of the modules block,
> so we can subsequently offset into that block without calling
> __tls_get_addr again.

In the LD case, the tls_index structure is inside the GOT. The GOT is 
zeroed by ld when it is created.

randolph
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Subject: Re: [parisc-linux] [RFC] pselect/ppoll support
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On 4/9/06, Kyle McMartin <kyle@mcmartin.ca> wrote:
> First strike at adding TIF_RESTORE_SIGMASK support for the pselect/ppoll
> system calls... Doesn't seem to work at all yet...

Thanks!

> -       .export sys_rt_sigsuspend_wrapper
> -sys_rt_sigsuspend_wrapper:
> -       LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
> -       ldo     TASK_REGS(%r1),%r24
> -       reg_save %r24
> -
> -       STREG   %r2, -RP_OFFSET(%r30)
> -#ifdef CONFIG_64BIT
> -       ldo     FRAME_SIZE(%r30), %r30
> -       b,l     sys_rt_sigsuspend,%r2
> -       ldo     -16(%r30),%r29          /* Reference param save area */
> -#else
> -       bl      sys_rt_sigsuspend,%r2
> -       ldo     FRAME_SIZE(%r30), %r30
> -#endif
> -
> -       ldo     -FRAME_SIZE(%r30), %r30
> -       LDREG   -RP_OFFSET(%r30), %r2
> -
> -       LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
> -       ldo     TASK_REGS(%r1),%r1
> -       reg_restore %r1
> -
> -       bv      %r0(%r2)
> -       nop
> -

This needs more review.

> -asmlinkage int
> -sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize, struct pt=
_regs *regs)

You've switched over to the kernel generic version of
sys_rt_sigsuspend, and you will have to review if it does exactly what
our version was doing. I suspect it's slightly different, and you
problems start here.

> +/* Setup a trampoline to restart the syscall
> + * with __NR_restart_syscall
> + *
> + *  0: <return address (orig r31)>
> + *  4: <2nd half for 64-bit>
> + *  8: ldw 0(%sp), %r31
> + * 12: be 0x100(%sr2, %r0)
> + * 16: ldi __NR_restart_syscall, %r20
> + */
> +static void setup_restart_syscall_tramp(struct pt_regs *regs)
> +{
> +       unsigned int *usp =3D (unsigned int *)regs->gr[30];
> +
> +#ifdef CONFIG_64BIT
> +       put_user(regs->gr[31] >> 32, &usp[0]);
> +       put_user(regs->gr[31] & 0xffffffff, &usp[1]);
> +       put_user(0x0fc010df, &usp[2]);
> +#else
> +       put_user(regs->gr[31], &usp[0]);
> +       put_user(0x0fc0109f, &usp[2]);
> +#endif
> +       put_user(0xe0008200, &usp[3]);
> +       put_user(0x34140000, &usp[4]);
> +
> +       /* Stack is 64-byte aligned, and we only need
> +        * to flush 1 cache line.
> +        * Flushing one cacheline is cheap.
> +        * "sync" on bigger (> 4 way) boxes is not.
> +        */
> +       asm("fdc %%r0(%%sr3, %0)\n"
> +           "sync\n"
> +           "fic %%r0(%%sr3, %0)\n"
> +           "sync\n"
> +           : : "r"(regs->gr[30]));
> +
> +       regs->gr[31] =3D regs->gr[30] + 8;
> +       /* Preserve original r28. */
> +       regs->gr[28] =3D regs->orig_r28;
> +
> +       return;
>  }

I believe we've always had a race condition in this trampoline.
I'm raising this issue so we can remember that it's there or
completely squash the issue. While returning to userspace
you *cannot* take another restart since the restarts are not
nestable. You must disable restarts and then reenable them
when you return from the trampoline. Linus wrote an email about
this issue. Has this been fixed for us?

> -       /* Everyone else checks to see if they are in kernel mode at
> -          this point and exits if that's the case.  I'm not sure why
> -          we would be called in that case, but for some reason we
> -          are. */
> +       if (!user_mode(regs))
> +               return;

Don't delete the comment unless you are willing to replace it with
one that explains why this might be the case. Please think about
kernel mode threads and why we don't do this for them.

>         /* May need to force signal if handle_signal failed to deliver */
> -       while (1) {
> -
> -               signr =3D get_signal_to_deliver(&info, &ka, regs, NULL);
> -               DBG(3,"do_signal: signr =3D %d, regs->gr[28] =3D %ld\n", =
signr, regs->gr[28]);
> +       signr =3D get_signal_to_deliver(&info, &ka, regs, NULL);
> +       DBG(3,"do_signal: signr =3D %d, regs->gr[28] =3D %ld\n", signr, r=
egs->gr[28]);

Have other arches changed their handlers?
Are we no longer required to loop in an attempt to deliver the signal?

> -       ENTRY_SAME(rt_sigsuspend_wrapper) /* not really SAME -- see the c=
ode */
> +       ENTRY_COMP(rt_sigsuspend)

This was always really ugly. Thanks.


> -       ENTRY_SAME(ni_syscall)          /* 271 ENTRY_COMP(pselect6) */
> -       ENTRY_SAME(ni_syscall)          /* 272 ENTRY_COMP(ppoll) */
> +       ENTRY_COMP(pselect6)
> +       ENTRY_COMP(ppoll)

Yay.

Cheers,
Carlos.
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On Sun, Apr 09, 2006 at 10:06:03PM -0400, Carlos O'Donell wrote:
> > -       .export sys_rt_sigsuspend_wrapper
> > -sys_rt_sigsuspend_wrapper:
<snip>
> > -
> > -       bv      %r0(%r2)
> > -       nop
> > -
> 
> This needs more review.
>

As far as I could tell, this was just massaging to get the pt_regs
for sys_rt_sigsuspend, so if we use the generic one, it could go too.
 
> > -asmlinkage int
> > -sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize, struct pt_regs *regs)
> 
> You've switched over to the kernel generic version of
> sys_rt_sigsuspend, and you will have to review if it does exactly what
> our version was doing. I suspect it's slightly different, and you
> problems start here.
> 

I did a quick comparison of the two, and it seemed to be mostly the
same. Someone who is more clued in should make sure I'm not on drugs
though.

<snip>
> I believe we've always had a race condition in this trampoline.
> I'm raising this issue so we can remember that it's there or
> completely squash the issue. While returning to userspace
> you *cannot* take another restart since the restarts are not
> nestable. You must disable restarts and then reenable them
> when you return from the trampoline. Linus wrote an email about
> this issue. Has this been fixed for us?
>

NFC.
 
> > +       if (!user_mode(regs))
> > +               return;
> 
> Don't delete the comment unless you are willing to replace it with
> one that explains why this might be the case. Please think about
> kernel mode threads and why we don't do this for them.
>

I'm just playing follow the leader through most of this routine.
 
> > -       while (1) {
> > -
> Have other arches changed their handlers?
> Are we no longer required to loop in an attempt to deliver the signal?
>

We loop in entry.S if we still have SIGPENDING set. AFAICT, this 
looping was redundant. Unless we can jump out of do_signal without
hitting intr_check_sig && syscall_check_sig, I'm not sure...

Cheers!
	Kyle 
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On Thu, Apr 06, 2006 at 09:12:05PM +0200, Marc Zyngier wrote:
> People,
> 
> I recently added a Sun dual gigabit, dual scsi PCI card to one of my
> B2000s. This board contains 2 cassini chips, and a 53c896, all sitting
> behind an Intel (well, Digital) 21154 PCI bridge.
> 
> The system works fine, but I'm seeing the following problems:
> 
> Whel probing the SCSI part of the board, the kernel spits the
> following:
> 
> PCI: resource not parented! [2000-2fff]
> PCI: resource not parented! [fb000000-fb5fffff]

Which kernel version?

>   00002000-00002fff : PCI Bus #02
> [... ad nauseam].

This is definitely a bug.

> 0000:01:02.0 PCI bridge: Intel Corporation 21154 PCI-to-PCI Bridge (prog-if 00 [Normal decode])
...
>         I/O behind bridge: 00002000-00002fff
>         Memory behind bridge: fb000000-fb5fffff

Looks like PCI bridge support isn't parenting the allocation
of these resources correctly.

> 0000:02:00.0 Ethernet controller: National Semiconductor Corporation DP83065 [Saturn] 10/100/1000 Ethernet Controller (rev 30)
...
>         Region 0: Memory at fb200000 (32-bit, non-prefetchable) [size=2M]

Wow! 2M? That's a fair chunk of space for a NIC.
Any special about that RAM or what it's used for?
(Just curious)

> 0000:02:02.0 SCSI storage controller: LSI Logic / Symbios Logic 53C896/897 (rev 07)
...
>         Region 0: I/O ports at 12100 [size=256]
>         Region 1: Memory at fb405000 (64-bit, non-prefetchable) [size=1K]
>         Region 3: Memory at fb402000 (64-bit, non-prefetchable) [size=8K]

Is CONFIG_SCSI_SYM53C8XX_MMIO enabled in your kernel?
(again just curious)

thanks,
grant
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[Cc:ing parisc-linux as interested people are there]

Hi!

Daniel Jacobowitz wrote:
> In the upstream glibc repository, both M68K and HPPA ports have been
> moved into the separate "ports" repository.  This means two things:
> 
>   - The core glibc maintainers will not update them when sweeping
>     changes are made.  This was already the case; they're just making
>     it clearer.
> 
>   - ACLs can be set up to allow a port maintainer to directly modify
>     ports files.
> 
> I'm already covering two other ports, so I refuse to pick up two more
> "orphans".  If you want continuing glibc support for these
> architectures, I think we need to find developers interested in
> maintaining them in the upstream trees.  I can point interested folks
> at some of the recent changes which need to be synched to their ports,
> but I'm not going to continue keeping a list much longer.
> 
> M68k in particular needs some loving.  New versions of glibc will not
> build without TLS support; whether or not you go to full NPTL support
> (which I highly recommend), you need to implement TLS.  It's not too
> hard, really.  And it's long overdue.
> 
> Any takers?
> 

For the HPPA port, guys from parisc-linux are doing very good job for 
both the kernel and the glibc. If I am right some of them (at least 
Carlos) have commit access to the CVS for HPPA.

Having write access to the Debian SVN, having an HPPA machine and 
reading debian-hppa, parisc-linux and libc-ports mailing-lists, I think 
I can work on merging the necessary patches to support HPPA in the 
Debian glibc.

Bye,
Aurelien

-- 
   .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
  : :' :  Debian developer           | Electrical Engineer
  `. `'   aurel32@debian.org         | aurelien@aurel32.net
    `-    people.debian.org/~aurel32 | www.aurel32.net


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Xref: news.gmane.org gmane.linux.ports.parisc:23566

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Hello all,

Reading some .s output like memcpy, I was worry that some labels was not =
in
the column as e.g.:
       pmc_store_exc:
[...]
       1:      ldw 0(%sr1,%r19), %r22
[...]

or otc code in first column:
[...]
shrpw %r3, %r1, %sar, %r28

here I attache a patch
--- linux-2.6.17-rc1-pa1/arch/parisc/lib/memcpy.c.Orig  2006-04-10
07:24:31.000000000 +0000
+++ linux-2.6.17-rc1-pa1/arch/parisc/lib/memcpy.c       2006-04-10
15:05:38.000000000 +0000
@@ -79,20 +79,24 @@
 #define get_user_space() (segment_eq(get_fs(), KERNEL_DS) ? 0 : mfsp(3))=

 #define get_kernel_space() (0)
 
-#define MERGE(w0, sh_1, w1, sh_2)  ({                                  \=

+#define MERGE(w0, sh_1, w1, sh_2)      ({                              \=

        unsigned int _r;                                                \=

-       asm volatile (                                                  \=

-       "mtsar %3\n"                                                    \=

-       "shrpw %1, %2, %%sar, %0\n"                                     \=

-       : "=3Dr"(_r)                                                     =
 \
-       : "r"(w0), "r"(w1), "r"(sh_2)                                   \=

+       __asm__ __volatile__ ("\n"                                      \=

+       "       mtsar           %3\n"                                   \=

+       "       shrpw           %1, %2,%%sar, %0"                       \=

+               : "=3Dr"(_r)                                             =
 \
+               : "r"(w0), "r"(w1), "r"(sh_2)                           \=

        );                                                              \=

        _r;                                                             \=

 })
 #define THRESHOLD      16
 
 #ifdef DEBUG_MEMCPY
-#define DPRINTF(fmt, args...) do { printk(KERN_DEBUG "%s:%d:%s ", __FILE=
__,
__LINE__, __FUNCTION__ ); printk(KERN_DEBUG fmt, ##args
 ); } while (0)
+#define DPRINTF(fmt, args...) do {                                     \=

+       printk(KERN_DEBUG "%s:%d:%s ",                                  \=

+               __FILE__, __LINE__, __FUNCTION__ );                     \=

+       printk(KERN_DEBUG fmt, ##args );                                \=

+} while (0)
 #else
 #define DPRINTF(fmt, args...)
 #endif
@@ -103,69 +107,81 @@
 #define EXC_WORD ".dword"
 #endif
 
-#define def_load_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e)    \
-       __asm__ __volatile__ (                          \
-       "1:\t" #_insn ",ma " #_sz "(" _s ",%1), %0\n"   \
-       "\t.section __ex_table,\"aw\"\n"                \
-       "\t" EXC_WORD "\t1b\n"                          \
-       "\t" EXC_WORD "\t" #_e "\n"                     \
-       "\t.previous\n"                                 \
-       : _tt(_t), "+r"(_a)                             \
-       :                                               \
-       : "r8")
-
-#define def_store_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e)   \
-       __asm__ __volatile__ (                          \
-       "1:\t" #_insn ",ma %1, " #_sz "(" _s ",%0)\n"   \
-       "\t.section __ex_table,\"aw\"\n"                \
-       "\t" EXC_WORD "\t1b\n"                          \
-       "\t" EXC_WORD "\t" #_e "\n"                     \
-       "\t.previous\n"                                 \
-       : "+r"(_a)                                      \
-       : _tt(_t)                                       \
-       : "r8")
-
-#define ldbma(_s, _a, _t, _e) def_load_ai_insn(ldbs,1,"=3Dr",_s,_a,_t,_e=
)
-#define stbma(_s, _t, _a, _e) def_store_ai_insn(stbs,1,"r",_s,_a,_t,_e)
-#define ldwma(_s, _a, _t, _e) def_load_ai_insn(ldw,4,"=3Dr",_s,_a,_t,_e)=

-#define stwma(_s, _t, _a, _e) def_store_ai_insn(stw,4,"r",_s,_a,_t,_e)
-#define flddma(_s, _a, _t, _e) def_load_ai_insn(fldd,8,"=3Df",_s,_a,_t,_=
e)
-#define fstdma(_s, _t, _a, _e) def_store_ai_insn(fstd,8,"f",_s,_a,_t,_e)=

-
-#define def_load_insn(_insn,_tt,_s,_o,_a,_t,_e)        \
-       __asm__ __volatile__ (                          \
-       "1:\t" #_insn " " #_o "(" _s ",%1), %0\n"       \
-       "\t.section __ex_table,\"aw\"\n"                \
-       "\t" EXC_WORD "\t1b\n"                          \
-       "\t" EXC_WORD "\t" #_e "\n"                     \
-       "\t.previous\n"                                 \
-       : _tt(_t)                                       \
-       : "r"(_a)                                       \
-       : "r8")
-
-#define def_store_insn(_insn,_tt,_s,_t,_o,_a,_e)       \
-       __asm__ __volatile__ (                          \
-       "1:\t" #_insn " %0, " #_o "(" _s ",%1)\n"       \
-       "\t.section __ex_table,\"aw\"\n"                \
-       "\t" EXC_WORD "\t1b\n"                          \
-       "\t" EXC_WORD "\t" #_e "\n"                     \
-       "\t.previous\n"                                 \
-       :                                               \
-       : _tt(_t), "r"(_a)                              \
-       : "r8")
+#define def_load_ai_insn(_insn, _sz, _tt, _s, _a, _t, _e)              \=

+       __asm__ __volatile__ ("\n"                                      \=

+       "1:     " #_insn ",ma           " #_sz "(" _s ", %1), %0\n"     \=

+       "       .section __ex_table,\"aw\"\n"                           \=

+       "       " EXC_WORD "    1b\n"                                   \=

+       "       " EXC_WORD "    " #_e "\n"                              \=

+       "       .previous"                                              \=

+               : _tt(_t), "+r"(_a)                                     \=

+               :                                                       \=

+               : "r8"                                                  \=

+       )
+
+#define def_store_ai_insn(_insn, _sz, _tt, _s, _a, _t, _e)             \=

+       __asm__ __volatile__ ("\n"                                      \=

+       "1:     " #_insn ",ma           %1, " #_sz "(" _s ", %0)\n"     \=

+       "       .section __ex_table,\"aw\"\n"                           \=

+       "       " EXC_WORD "    1b\n"                                   \=

+       "       " EXC_WORD "    " #_e "\n"                              \=

+       "       .previous"                                              \=

+               : "+r"(_a)                                              \=

+               : _tt(_t)                                               \=

+               : "r8"                                                  \=

+       )
+
+#define ldbma(_s, _a, _t, _e) def_load_ai_insn(ldbs, 1, "=3Dr", _s, _a, =
_t, _e)
+#define stbma(_s, _t, _a, _e) def_store_ai_insn(stbs, 1, "r", _s, _a, _t=
, _e)
+#define ldwma(_s, _a, _t, _e) def_load_ai_insn(ldw, 4, "=3Dr", _s, _a, _=
t, _e)
+#define stwma(_s, _t, _a, _e) def_store_ai_insn(stw, 4, "r", _s, _a, _t,=
 _e)
+#define flddma(_s, _a, _t, _e) def_load_ai_insn(fldd, 8, "=3Df", _s, _a,=
 _t, _e)
+#define fstdma(_s, _t, _a, _e) def_store_ai_insn(fstd, 8, "f", _s, _a, _=
t, _e)
+
+#define def_load_insn(_insn, _tt, _s, _o, _a, _t, _e)                  \=

+       __asm__ __volatile__ ("\n"                                      \=

+       "1:     " #_insn "              " #_o "(" _s ", %1), %0\n"      \=

+       "       .section __ex_table,\"aw\"\n"                           \=

+       "       " EXC_WORD "    1b\n"                                   \=

+       "       " EXC_WORD "    " #_e "\n"                              \=

+       "       .previous"                                              \=

+               : _tt(_t)                                               \=

+               : "r"(_a)                                               \=

+               : "r8"                                                  \=

+       )
+
+#define def_store_insn(_insn, _tt, _s, _t, _o, _a, _e)                 \=

+       __asm__ __volatile__ ("\n"                                      \=

+       "1:     " #_insn "              %0, " #_o "(" _s ", %1)\n"      \=

+       "       .section __ex_table,\"aw\"\n"                           \=

+       "       " EXC_WORD "    1b\n"                                   \=

+       "       " EXC_WORD "    " #_e "\n"                              \=

+       "       .previous"                                              \=

+               :                                                       \=

+               : _tt(_t), "r"(_a)                                      \=

+               : "r8"                                                  \=

+       )
 
-#define ldw(_s,_o,_a,_t,_e)    def_load_insn(ldw,"=3Dr",_s,_o,_a,_t,_e)
-#define stw(_s,_t,_o,_a,_e)    def_store_insn(stw,"r",_s,_t,_o,_a,_e)
+#define ldw(_s, _o, _a, _t, _e)        def_load_insn(ldw, "=3Dr", _s, _o=
, _a,
_t, _e)
+#define stw(_s, _t, _o, _a, _e)        def_store_insn(stw, "r", _s, _t, =
_o,
_a, _e)
 
 #ifdef  CONFIG_PREFETCH
 extern inline void prefetch_src(const void *addr)
 {
-       __asm__("ldw 0(" s_space ",%0), %%r0" : : "r" (addr));
+       __asm__ ("\n"
+       "       ldw             0(" s_space ", %0), %%r0"
+               :
+               : "r" (addr)
+       );
 }
 
 extern inline void prefetch_dst(const void *addr)
 {
-       __asm__("ldd 0(" d_space ",%0), %%r0" : : "r" (addr));
+       __asm__ ("\n"
+       "       ldd             0(" d_space ", %0), %%r0"
+               :
+               : "r" (addr)
+       );
 }
 #else
 #define prefetch_src(addr)
@@ -278,14 +294,14 @@
        return 0;
 
 handle_load_error:
-       __asm__ __volatile__ ("cda_ldw_exc:\n");
+       __asm__ __volatile__ ("\ncda_ldw_exc:\n");
        d =3D &__get_cpu_var(exception_data);
        DPRINTF("cda_ldw_exc: o_len=3D%lu fault_addr=3D%lu o_src=3D%lu re=
t=3D%lu\n",
                o_len, d->fault_addr, o_src, o_len - d->fault_addr + o_sr=
c);
        return o_len * 4 - d->fault_addr + o_src;
 
 handle_store_error:
-       __asm__ __volatile__ ("cda_stw_exc:\n");
+       __asm__ __volatile__ ("\ncda_stw_exc:\n");
        d =3D &__get_cpu_var(exception_data);
        DPRINTF("cda_stw_exc: o_len=3D%lu fault_addr=3D%lu o_dst=3D%lu re=
t=3D%lu\n",
                o_len, d->fault_addr, o_dst, o_len - d->fault_addr + o_ds=
t);
@@ -374,7 +390,7 @@
 
 word_copy:
        while (len >=3D 8*sizeof(unsigned int)) {
-               register unsigned int r1,r2,r3,r4,r5,r6,r7,r8;
+               register unsigned int r1, r2, r3, r4, r5, r6, r7, r8;
                /* prefetch_src((char *)pws + L1_CACHE_BYTES); */
                ldwma(s_space, pws, r1, pmc_load_exc);
                ldwma(s_space, pws, r2, pmc_load_exc);
@@ -397,7 +413,7 @@
        }
 
        while (len >=3D 4*sizeof(unsigned int)) {
-               register unsigned int r1,r2,r3,r4;
+               register unsigned int r1, r2, r3, r4;
                ldwma(s_space, pws, r1, pmc_load_exc);
                ldwma(s_space, pws, r2, pmc_load_exc);
                ldwma(s_space, pws, r3, pmc_load_exc);
@@ -472,14 +488,14 @@
        goto byte_copy;
 
 handle_load_error:
-       __asm__ __volatile__ ("pmc_load_exc:\n");
+       __asm__ __volatile__ ("\npmc_load_exc:\n");
        d =3D &__get_cpu_var(exception_data);
        DPRINTF("pmc_load_exc: o_len=3D%lu fault_addr=3D%lu o_src=3D%lu r=
et=3D%lu\n",
                o_len, d->fault_addr, o_src, o_len - d->fault_addr + o_sr=
c);
        return o_len - d->fault_addr + o_src;
 
 handle_store_error:
-       __asm__ __volatile__ ("pmc_store_exc:\n");
+       __asm__ __volatile__ ("\npmc_store_exc:\n");
        d =3D &__get_cpu_var(exception_data);
        DPRINTF("pmc_store_exc: o_len=3D%lu fault_addr=3D%lu o_dst=3D%lu =
ret=3D%lu\n",
                o_len, d->fault_addr, o_dst, o_len - d->fault_addr + o_ds=
t);
=3D=3D=3D=3D<>=3D=3D=3D=3D

 which seems to make the drill:
-       pmc_store_exc:
+
+pmc_store_exc:
 
 #NO_APP
        addil LR'per_cpu__exception_data-$global$,%r27
@@ -450,37 +451,37 @@
        ldi 0,%r1
 .L38:
 #APP
-       1:      ldw 0(%sr1,%r19), %r22
+
+1:     ldw             0(%sr1, %r19), %r22
        .section __ex_table,"aw"
        .word   1b
        .word   cda_ldw_exc
        .previous
-
-       mtsar %r29
-shrpw %r3, %r1, %sar, %r28
-
-       1:      stw %r28, 0(%sr2,%r20)
+
+       mtsar           %r29
+       shrpw           %r3, %r1,%sar, %r28
+
+1:     stw             %r28, 0(%sr2, %r20)
[...]

Not sure it was usefull but that made me attemptimg to use a same asm blo=
c
template. 

BTW, I tried to apply the same template to some uaccess.h and figure out =
that
this hunk din't mentioned that "r1" was cloberred (iirc in fixup text) wh=
ile
the 32bit one did:
 
#ifdef __LP64__
#define __put_kernel_asm(stx,x,ptr)                         \
       __asm__ __volatile__ (                              \
               "\n1:\t" stx "\t%2,0(%1)\n"                 \
               "\t.section __ex_table,\"aw\"\n"            \
               "\t.dword\t1b,fixup_put_user_skip_1\n"      \
               "\t.previous"                               \
               : "=3Dr"(__pu_err)                            \
               : "r"(ptr), "r"(x), "0"(__pu_err))
[snip]
#else
#define __put_kernel_asm(stx,x,ptr)                         \
       __asm__ __volatile__ (                              \
               "\n1:\t" stx "\t%2,0(%1)\n"                 \
               "\t.section __ex_table,\"aw\"\n"            \
                "\t.word\t1b,fixup_put_user_skip_1\n"      \
                "\t.previous"                              \
               : "=3Dr"(__pu_err)                            \
               : "r"(ptr), "r"(x), "0"(__pu_err)           \
               : "r1")
[snip]

mmm, doen't seems to change anything (I just check sys_parisc32.s) but ma=
y be
else where?

Thanks,
    Joel


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--_=__=_XaM3_.1144748258.2A.816162.42.473.52.42.007.1772815055
Content-Type: text/plain;
	name="=?iso-8859-1?Q?memcpy.c.beautify.diff?="
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	filename="=?iso-8859-1?Q?memcpy.c.beautify.diff?="

--- linux-2.6.17-rc1-pa1/arch/parisc/lib/memcpy.c.Orig	2006-04-10 07:24:3=
1.000000000 +0000=0A+++ linux-2.6.17-rc1-pa1/arch/parisc/lib/memcpy.c	200=
6-04-10 15:05:38.000000000 +0000=0A@@ -79,20 +79,24 @@=0A #define get_use=
r_space() (segment_eq(get_fs(), KERNEL_DS) ? 0 : mfsp(3))=0A #define get_=
kernel_space() (0)=0A =0A-#define MERGE(w0, sh_1, w1, sh_2)  ({					\=0A+=
#define MERGE(w0, sh_1, w1, sh_2)	({				\=0A 	unsigned int _r;						\=0A-=
	asm volatile (							\=0A-	"mtsar %3\n"							\=0A-	"shrpw %1, %2, %%sar=
, %0\n"					\=0A-	: "=3Dr"(_r)							\=0A-	: "r"(w0), "r"(w1), "r"(sh_2)	=
				\=0A+	__asm__ __volatile__ ("\n"					\=0A+	"	mtsar		%3\n"					\=0A+	"=
	shrpw		%1, %2,%%sar, %0"			\=0A+		: "=3Dr"(_r)						\=0A+		: "r"(w0), "r=
"(w1), "r"(sh_2)				\=0A 	);								\=0A 	_r;								\=0A })=0A #define T=
HRESHOLD	16=0A =0A #ifdef DEBUG_MEMCPY=0A-#define DPRINTF(fmt, args...) d=
o { printk(KERN_DEBUG "%s:%d:%s ", __FILE__, __LINE__, __FUNCTION__ ); pr=
intk(KERN_DEBUG fmt, ##args ); } while (0)=0A+#define DPRINTF(fmt, args..=
.) do {					\=0A+	printk(KERN_DEBUG "%s:%d:%s ",					\=0A+		__FILE__, __L=
INE__, __FUNCTION__ );			\=0A+	printk(KERN_DEBUG fmt, ##args );				\=0A+}=
 while (0)=0A #else=0A #define DPRINTF(fmt, args...)=0A #endif=0A@@ -103,=
69 +107,81 @@=0A #define EXC_WORD ".dword"=0A #endif=0A =0A-#define def_l=
oad_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e)	\=0A-	__asm__ __volatile__ (				\=0A=
-	"1:\t" #_insn ",ma " #_sz "(" _s ",%1), %0\n" 	\=0A-	"\t.section __ex_t=
able,\"aw\"\n"		\=0A-	"\t" EXC_WORD "\t1b\n"				\=0A-	"\t" EXC_WORD "\t" =
#_e "\n"			\=0A-	"\t.previous\n"					\=0A-	: _tt(_t), "+r"(_a)				\=0A-	:=
 						\=0A-	: "r8")=0A-=0A-#define def_store_ai_insn(_insn,_sz,_tt,_s,_a=
,_t,_e) 	\=0A-	__asm__ __volatile__ (				\=0A-	"1:\t" #_insn ",ma %1, " #=
_sz "(" _s ",%0)\n" 	\=0A-	"\t.section __ex_table,\"aw\"\n"		\=0A-	"\t" E=
XC_WORD "\t1b\n"				\=0A-	"\t" EXC_WORD "\t" #_e "\n"			\=0A-	"\t.previou=
s\n"					\=0A-	: "+r"(_a) 					\=0A-	: _tt(_t)					\=0A-	: "r8")=0A-=0A-#=
define ldbma(_s, _a, _t, _e) def_load_ai_insn(ldbs,1,"=3Dr",_s,_a,_t,_e)=0A=
-#define stbma(_s, _t, _a, _e) def_store_ai_insn(stbs,1,"r",_s,_a,_t,_e)=0A=
-#define ldwma(_s, _a, _t, _e) def_load_ai_insn(ldw,4,"=3Dr",_s,_a,_t,_e)=
=0A-#define stwma(_s, _t, _a, _e) def_store_ai_insn(stw,4,"r",_s,_a,_t,_e=
)=0A-#define flddma(_s, _a, _t, _e) def_load_ai_insn(fldd,8,"=3Df",_s,_a,=
_t,_e)=0A-#define fstdma(_s, _t, _a, _e) def_store_ai_insn(fstd,8,"f",_s,=
_a,_t,_e)=0A-=0A-#define def_load_insn(_insn,_tt,_s,_o,_a,_t,_e) 	\=0A-	_=
_asm__ __volatile__ (				\=0A-	"1:\t" #_insn " " #_o "(" _s ",%1), %0\n"	=
\=0A-	"\t.section __ex_table,\"aw\"\n"		\=0A-	"\t" EXC_WORD "\t1b\n"				\=
=0A-	"\t" EXC_WORD "\t" #_e "\n"			\=0A-	"\t.previous\n"					\=0A-	: _tt(=
_t) 					\=0A-	: "r"(_a)					\=0A-	: "r8")=0A-=0A-#define def_store_insn(=
_insn,_tt,_s,_t,_o,_a,_e) 	\=0A-	__asm__ __volatile__ (				\=0A-	"1:\t" #=
_insn " %0, " #_o "(" _s ",%1)\n" 	\=0A-	"\t.section __ex_table,\"aw\"\n"=
		\=0A-	"\t" EXC_WORD "\t1b\n"				\=0A-	"\t" EXC_WORD "\t" #_e "\n"			\=0A=
-	"\t.previous\n"					\=0A-	: 						\=0A-	: _tt(_t), "r"(_a)				\=0A-	: "=
r8")=0A+#define def_load_ai_insn(_insn, _sz, _tt, _s, _a, _t, _e)		\=0A+	=
__asm__ __volatile__ ("\n"					\=0A+	"1:	" #_insn ",ma		" #_sz "(" _s ", =
%1), %0\n"	\=0A+	"	.section __ex_table,\"aw\"\n"				\=0A+	"	" EXC_WORD "	=
1b\n"					\=0A+	"	" EXC_WORD "	" #_e "\n"				\=0A+	"	.previous"						\=0A=
+		: _tt(_t), "+r"(_a)					\=0A+		: 							\=0A+		: "r8"							\=0A+	)=0A=
+=0A+#define def_store_ai_insn(_insn, _sz, _tt, _s, _a, _t, _e)		\=0A+	__=
asm__ __volatile__ ("\n"					\=0A+	"1:	" #_insn ",ma		%1, " #_sz "(" _s "=
, %0)\n" 	\=0A+	"	.section __ex_table,\"aw\"\n"				\=0A+	"	" EXC_WORD "	1=
b\n"					\=0A+	"	" EXC_WORD "	" #_e "\n"				\=0A+	"	.previous"						\=0A+=
		: "+r"(_a) 						\=0A+		: _tt(_t)						\=0A+		: "r8"							\=0A+	)=0A+=0A=
+#define ldbma(_s, _a, _t, _e) def_load_ai_insn(ldbs, 1, "=3Dr", _s, _a, =
_t, _e)=0A+#define stbma(_s, _t, _a, _e) def_store_ai_insn(stbs, 1, "r", =
_s, _a, _t, _e)=0A+#define ldwma(_s, _a, _t, _e) def_load_ai_insn(ldw, 4,=
 "=3Dr", _s, _a, _t, _e)=0A+#define stwma(_s, _t, _a, _e) def_store_ai_in=
sn(stw, 4, "r", _s, _a, _t, _e)=0A+#define flddma(_s, _a, _t, _e) def_loa=
d_ai_insn(fldd, 8, "=3Df", _s, _a, _t, _e)=0A+#define fstdma(_s, _t, _a, =
_e) def_store_ai_insn(fstd, 8, "f", _s, _a, _t, _e)=0A+=0A+#define def_lo=
ad_insn(_insn, _tt, _s, _o, _a, _t, _e) 			\=0A+	__asm__ __volatile__ ("\=
n"					\=0A+	"1:	" #_insn "		" #_o "(" _s ", %1), %0\n"	\=0A+	"	.section =
__ex_table,\"aw\"\n"				\=0A+	"	" EXC_WORD "	1b\n"					\=0A+	"	" EXC_WORD=
 "	" #_e "\n"				\=0A+	"	.previous"						\=0A+		: _tt(_t) 						\=0A+		: =
"r"(_a)						\=0A+		: "r8"							\=0A+	)=0A+=0A+#define def_store_insn(_i=
nsn, _tt, _s, _t, _o, _a, _e)			\=0A+	__asm__ __volatile__ ("\n"					\=0A=
+	"1:	" #_insn "		%0, " #_o "(" _s ", %1)\n"	\=0A+	"	.section __ex_table,=
\"aw\"\n"				\=0A+	"	" EXC_WORD "	1b\n"					\=0A+	"	" EXC_WORD "	" #_e "\=
n"				\=0A+	"	.previous"						\=0A+		: 							\=0A+		: _tt(_t), "r"(_a)		=
			\=0A+		: "r8"							\=0A+	)=0A =0A-#define ldw(_s,_o,_a,_t,_e)	def_loa=
d_insn(ldw,"=3Dr",_s,_o,_a,_t,_e)=0A-#define stw(_s,_t,_o,_a,_e) 	def_sto=
re_insn(stw,"r",_s,_t,_o,_a,_e)=0A+#define ldw(_s, _o, _a, _t, _e)	def_lo=
ad_insn(ldw, "=3Dr", _s, _o, _a, _t, _e)=0A+#define stw(_s, _t, _o, _a, _=
e)	def_store_insn(stw, "r", _s, _t, _o, _a, _e)=0A =0A #ifdef  CONFIG_PRE=
FETCH=0A extern inline void prefetch_src(const void *addr)=0A {=0A-	__asm=
__("ldw 0(" s_space ",%0), %%r0" : : "r" (addr));=0A+	__asm__ ("\n"=0A+	"=
	ldw		0(" s_space ", %0), %%r0"=0A+		:=0A+		: "r" (addr)=0A+	);=0A }=0A =0A=
 extern inline void prefetch_dst(const void *addr)=0A {=0A-	__asm__("ldd =
0(" d_space ",%0), %%r0" : : "r" (addr));=0A+	__asm__ ("\n"=0A+	"	ldd		0(=
" d_space ", %0), %%r0"=0A+		:=0A+		: "r" (addr)=0A+	);=0A }=0A #else=0A =
#define prefetch_src(addr)=0A@@ -278,14 +294,14 @@=0A 	return 0;=0A =0A h=
andle_load_error:=0A-	__asm__ __volatile__ ("cda_ldw_exc:\n");=0A+	__asm_=
_ __volatile__ ("\ncda_ldw_exc:\n");=0A 	d =3D &__get_cpu_var(exception_d=
ata);=0A 	DPRINTF("cda_ldw_exc: o_len=3D%lu fault_addr=3D%lu o_src=3D%lu =
ret=3D%lu\n",=0A 		o_len, d->fault_addr, o_src, o_len - d->fault_addr + o=
_src);=0A 	return o_len * 4 - d->fault_addr + o_src;=0A =0A handle_store_=
error:=0A-	__asm__ __volatile__ ("cda_stw_exc:\n");=0A+	__asm__ __volatil=
e__ ("\ncda_stw_exc:\n");=0A 	d =3D &__get_cpu_var(exception_data);=0A 	D=
PRINTF("cda_stw_exc: o_len=3D%lu fault_addr=3D%lu o_dst=3D%lu ret=3D%lu\n=
",=0A 		o_len, d->fault_addr, o_dst, o_len - d->fault_addr + o_dst);=0A@@=
 -374,7 +390,7 @@=0A =0A word_copy:=0A 	while (len >=3D 8*sizeof(unsigned=
 int)) {=0A-		register unsigned int r1,r2,r3,r4,r5,r6,r7,r8;=0A+		registe=
r unsigned int r1, r2, r3, r4, r5, r6, r7, r8;=0A 		/* prefetch_src((char=
 *)pws + L1_CACHE_BYTES); */=0A 		ldwma(s_space, pws, r1, pmc_load_exc);=0A=
 		ldwma(s_space, pws, r2, pmc_load_exc);=0A@@ -397,7 +413,7 @@=0A 	}=0A =
=0A 	while (len >=3D 4*sizeof(unsigned int)) {=0A-		register unsigned int=
 r1,r2,r3,r4;=0A+		register unsigned int r1, r2, r3, r4;=0A 		ldwma(s_spa=
ce, pws, r1, pmc_load_exc);=0A 		ldwma(s_space, pws, r2, pmc_load_exc);=0A=
 		ldwma(s_space, pws, r3, pmc_load_exc);=0A@@ -472,14 +488,14 @@=0A 	got=
o byte_copy;=0A =0A handle_load_error:=0A-	__asm__ __volatile__ ("pmc_loa=
d_exc:\n");=0A+	__asm__ __volatile__ ("\npmc_load_exc:\n");=0A 	d =3D &__=
get_cpu_var(exception_data);=0A 	DPRINTF("pmc_load_exc: o_len=3D%lu fault=
_addr=3D%lu o_src=3D%lu ret=3D%lu\n",=0A 		o_len, d->fault_addr, o_src, o=
_len - d->fault_addr + o_src);=0A 	return o_len - d->fault_addr + o_src;=0A=
 =0A handle_store_error:=0A-	__asm__ __volatile__ ("pmc_store_exc:\n");=0A=
+	__asm__ __volatile__ ("\npmc_store_exc:\n");=0A 	d =3D &__get_cpu_var(e=
xception_data);=0A 	DPRINTF("pmc_store_exc: o_len=3D%lu fault_addr=3D%lu =
o_dst=3D%lu ret=3D%lu\n",=0A 		o_len, d->fault_addr, o_dst, o_len - d->fa=
ult_addr + o_dst);=0A
--_=__=_XaM3_.1144748258.2A.816162.42.473.52.42.007.1772815055
Content-Type: text/plain;
	name="=?iso-8859-1?Q?uaccess.h.beautify.diff?="
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="=?iso-8859-1?Q?uaccess.h.beautify.diff?="

--- linux-2.6.17-rc1-pa1/include/asm-parisc/uaccess.h.Orig	2006-04-10 14:=
05:32.000000000 +0000=0A+++ linux-2.6.17-rc1-pa1/include/asm-parisc/uacce=
ss.h	2006-04-10 16:28:14.000000000 +0000=0A@@ -76,97 +76,122 @@=0A 	unsig=
ned long fault_addr;=0A };=0A =0A-#define __get_user(x,ptr)              =
                 \=0A-({                                                 =
     \=0A-	register long __gu_err __asm__ ("r8") =3D 0;      \=0A-	regist=
er long __gu_val __asm__ ("r9") =3D 0;      \=0A-							\=0A-	if (segment=
_eq(get_fs(),KERNEL_DS)) {           \=0A-	    switch (sizeof(*(ptr))) { =
                  \=0A-	    case 1: __get_kernel_asm("ldb",ptr); break; \=
=0A-	    case 2: __get_kernel_asm("ldh",ptr); break; \=0A-	    case 4: __=
get_kernel_asm("ldw",ptr); break; \=0A-	    case 8: LDD_KERNEL(ptr); brea=
k;		\=0A-	    default: __get_kernel_bad(); break;         \=0A-	    }    =
                                       \=0A-	}                           =
                    \=0A-	else {                                         =
 \=0A-	    switch (sizeof(*(ptr))) {                   \=0A-	    case 1: =
__get_user_asm("ldb",ptr); break;   \=0A-	    case 2: __get_user_asm("ldh=
",ptr); break;   \=0A-	    case 4: __get_user_asm("ldw",ptr); break;   \=0A=
-	    case 8: LDD_USER(ptr);  break;		\=0A-	    default: __get_user_bad()=
; break;           \=0A-	    }                                           =
\=0A-	}                                               \=0A-							\=0A-	(=
x) =3D (__typeof__(*(ptr))) __gu_val;            \=0A-	__gu_err;         =
                              \=0A+#define __get_user(x, ptr)	({				\=0A+=
								\=0A+	register long __gu_err __asm__ ("r8") =3D 0;		\=0A+	registe=
r long __gu_val __asm__ ("r9") =3D 0;		\=0A+								\=0A+	if (segment_eq(=
get_fs(), KERNEL_DS)) {			\=0A+		switch (sizeof(*(ptr))) {			\=0A+			case=
 1: __get_kernel_asm("ldb", ptr);	\=0A+				break;				\=0A+			case 2: __ge=
t_kernel_asm("ldh", ptr);	\=0A+				break;				\=0A+			case 4: __get_kernel=
_asm("ldw", ptr);	\=0A+				break;				\=0A+			case 8: LDD_KERNEL(ptr);		\=0A=
+				break;				\=0A+			default: __get_kernel_bad();		\=0A+				break;				\=
=0A+		}						\=0A+	} else {						\=0A+		switch (sizeof(*(ptr))) {			\=0A+=
			case 1: __get_user_asm("ldb", ptr);	\=0A+				break;				\=0A+			case 2:=
 __get_user_asm("ldh", ptr);	\=0A+				break;				\=0A+			case 4: __get_use=
r_asm("ldw", ptr);	\=0A+				break;				\=0A+			case 8: LDD_USER(ptr);			\=0A=
+				break;				\=0A+			default: __get_user_bad();		\=0A+				break;				\=0A=
+		}						\=0A+	}							\=0A+								\=0A+	(x) =3D (__typeof__(*(ptr))) _=
_gu_val;			\=0A+	__gu_err;						\=0A })=0A =0A #ifdef __LP64__=0A-#define=
 __get_kernel_asm(ldx,ptr)                       \=0A-	__asm__("\n1:\t" l=
dx "\t0(%2),%0\n"             \=0A-		"\t.section __ex_table,\"aw\"\n"    =
    \=0A-		"\t.dword\t1b,fixup_get_user_skip_1\n"	\=0A-		"\t.previous"   =
                       	\=0A-		: "=3Dr"(__gu_val), "=3Dr"(__gu_err)      =
  \=0A+#define __get_kernel_asm(ldx, ptr)			\=0A+	__asm__ ("\n"					\=0A+=
	"1:	" ldx "		0(%2), %0\n"		\=0A+	"	.section __ex_table,\"aw\"\n"		\=0A+	=
"	.dword	1b, fixup_get_user_skip_1\n"	\=0A+	"	.previous"				\=0A+		: "=3D=
r"(__gu_val), "=3Dr"(__gu_err)	\=0A 		: "r"(ptr), "1"(__gu_err)		\=0A-		:=
 "r1");=0A+		: "r1"					\=0A+	)=0A =0A-#define __get_user_asm(ldx,ptr)   =
                      \=0A-	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"    =
   \=0A-		"\t.section __ex_table,\"aw\"\n"	\=0A-		"\t.dword\t1b,fixup_get=
_user_skip_1\n"	\=0A-		"\t.previous"				\=0A-		: "=3Dr"(__gu_val), "=3Dr"=
(__gu_err)        \=0A+#define __get_user_asm(ldx, ptr)			\=0A+	__asm__ (=
"\n"					\=0A+	"1:	" ldx "		0(%%sr3, %2), %0\n"	\=0A+	"	.section __ex_tab=
le,\"aw\"\n"		\=0A+	"	.dword	1b, fixup_get_user_skip_1\n"	\=0A+	"	.previo=
us"				\=0A+		: "=3Dr"(__gu_val), "=3Dr"(__gu_err)	\=0A 		: "r"(ptr), "1"=
(__gu_err)		\=0A-		: "r1");=0A+		: "r1"					\=0A+	)=0A #else=0A-#define _=
_get_kernel_asm(ldx,ptr)                       \=0A-	__asm__("\n1:\t" ldx=
 "\t0(%2),%0\n"             \=0A-		"\t.section __ex_table,\"aw\"\n"      =
  \=0A-		"\t.word\t1b,fixup_get_user_skip_1\n"	\=0A-		"\t.previous"      =
                    	\=0A-		: "=3Dr"(__gu_val), "=3Dr"(__gu_err)        \=
=0A+#define __get_kernel_asm(ldx, ptr)			\=0A+	__asm__ ("\n"					\=0A+	"1=
:	" ldx "		0(%2), %0\n"		\=0A+	"	.section __ex_table,\"aw\"\n"		\=0A+	"	.=
word	1b, fixup_get_user_skip_1\n"	\=0A+	"	.previous"				\=0A+		: "=3Dr"(_=
_gu_val), "=3Dr"(__gu_err)	\=0A 		: "r"(ptr), "1"(__gu_err)		\=0A-		: "r1=
");=0A+		: "r1"					\=0A+	)=0A =0A-#define __get_user_asm(ldx,ptr)       =
                  \=0A-	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \=
=0A-		"\t.section __ex_table,\"aw\"\n"	\=0A-		 "\t.word\t1b,fixup_get_use=
r_skip_1\n"	\=0A-		 "\t.previous"                          \=0A-		: "=3Dr=
"(__gu_val), "=3Dr"(__gu_err)        \=0A+#define __get_user_asm(ldx, ptr=
)			\=0A+	__asm__ ("\n"					\=0A+	"1:	" ldx "		0(%%sr3, %2), %0\n"	\=0A+	=
"	.section __ex_table,\"aw\"\n"		\=0A+	"	.word	1b, fixup_get_user_skip_1\=
n"	\=0A+	"	.previous"				\=0A+		: "=3Dr"(__gu_val), "=3Dr"(__gu_err)	\=0A=
 		: "r"(ptr), "1"(__gu_err)		\=0A-		: "r1");=0A+		: "r1"					\=0A+	)=0A =
#endif /* !__LP64__ */=0A =0A-#define __put_user(x,ptr)                  =
                     \=0A-({								\=0A-	register long __pu_err __asm__ =
("r8") =3D 0;      	\=0A-        __typeof__(*(ptr)) __x =3D (__typeof__(*=
(ptr)))(x);	\=0A-								\=0A-	if (segment_eq(get_fs(),KERNEL_DS)) {     =
              \=0A-	    switch (sizeof(*(ptr))) {                        =
   \=0A-	    case 1: __put_kernel_asm("stb",__x,ptr); break;     \=0A-	  =
  case 2: __put_kernel_asm("sth",__x,ptr); break;     \=0A-	    case 4: _=
_put_kernel_asm("stw",__x,ptr); break;     \=0A-	    case 8: STD_KERNEL(_=
_x,ptr); break;			\=0A-	    default: __put_kernel_bad(); break;			\=0A-	 =
   }                                                   \=0A-	}           =
                                            \=0A-	else {                 =
                                 \=0A-	    switch (sizeof(*(ptr))) {     =
                      \=0A-	    case 1: __put_user_asm("stb",__x,ptr); br=
eak;       \=0A-	    case 2: __put_user_asm("sth",__x,ptr); break;       =
\=0A-	    case 4: __put_user_asm("stw",__x,ptr); break;       \=0A-	    c=
ase 8: STD_USER(__x,ptr); break;			\=0A-	    default: __put_user_bad(); b=
reak;			\=0A-	    }                                                   \=0A=
-	}                                                       \=0A-								\=0A=
-	__pu_err;						\=0A+#define __put_user(x, ptr)	({					\=0A+									\=0A=
+	register long __pu_err __asm__ ("r8") =3D 0;			\=0A+        __typeof__(=
*(ptr)) __x =3D (__typeof__(*(ptr)))(x);		\=0A+									\=0A+	if (segment=
_eq(get_fs(),KERNEL_DS)) {				\=0A+		switch (sizeof(*(ptr))) {				\=0A+		=
	case 1: __put_kernel_asm("stb", __x, ptr);	\=0A+				break;					\=0A+			c=
ase 2: __put_kernel_asm("sth", __x, ptr);	\=0A+				break;					\=0A+			cas=
e 4: __put_kernel_asm("stw", __x, ptr);	\=0A+				break;					\=0A+			case =
8: STD_KERNEL(__x, ptr);			\=0A+				break;					\=0A+			default: __put_ker=
nel_bad();			\=0A+				break;					\=0A+		}							\=0A+	} else {							\=0A=
+		switch (sizeof(*(ptr))) {				\=0A+			case 1: __put_user_asm("stb", __x=
, ptr);	\=0A+				break;					\=0A+			case 2: __put_user_asm("sth", __x, pt=
r);	\=0A+				break;					\=0A+			case 4: __put_user_asm("stw", __x, ptr);	=
\=0A+				break;					\=0A+			case 8: STD_USER(__x, ptr);			\=0A+				break;=
					\=0A+			default: __put_user_bad();			\=0A+				break;					\=0A+		}			=
				\=0A+	}								\=0A+	__pu_err;							\=0A })=0A =0A /*=0A@@ -176,75 +=
201,82 @@=0A  */=0A =0A #ifdef __LP64__=0A-#define __put_kernel_asm(stx,x=
,ptr)                         \=0A-	__asm__ __volatile__ (               =
               \=0A-		"\n1:\t" stx "\t%2,0(%1)\n"                 \=0A-		=
"\t.section __ex_table,\"aw\"\n"            \=0A-		"\t.dword\t1b,fixup_pu=
t_user_skip_1\n"	    \=0A-		"\t.previous"                               \=
=0A-		: "=3Dr"(__pu_err)                            \=0A-		: "r"(ptr), "r=
"(x), "0"(__pu_err))=0A-=0A-#define __put_user_asm(stx,x,ptr)            =
               \=0A-	__asm__ __volatile__ (                              =
\=0A-		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \=0A-		"\t.section __e=
x_table,\"aw\"\n"            \=0A-		 "\t.dword\t1b,fixup_put_user_skip_1\=
n"	    \=0A-		 "\t.previous"                              \=0A-		: "=3Dr"=
(__pu_err)                            \=0A-		: "r"(ptr), "r"(x), "0"(__pu=
_err)	    \=0A-		: "r1")=0A+#define __put_kernel_asm(stx, x, ptr)			\=0A+=
	__asm__ __volatile__ ("\n"			\=0A+	"1:	" stx "		%2, 0(%1)\n"		\=0A+	"	.s=
ection __ex_table,\"aw\"\n"		\=0A+	"	.dword	1b, fixup_put_user_skip_1\n"	=
\=0A+	"	.previous"				\=0A+		: "=3Dr"(__pu_err)			\=0A+		: "r"(ptr), "r"(=
x), "0"(__pu_err)	\=0A+		: "r1"					\=0A+	)=0A+=0A+#define __put_user_asm=
(stx, x, ptr)			\=0A+	__asm__ __volatile__ ("\n"			\=0A+	"1:	" stx "		%2,=
 0(%%sr3, %1)\n"	\=0A+	"	.section __ex_table,\"aw\"\n"		\=0A+	"	.dword	1b=
, fixup_put_user_skip_1\n"    \=0A+	"	.previous"				\=0A+		: "=3Dr"(__pu_=
err)			\=0A+		: "r"(ptr), "r"(x), "0"(__pu_err)	\=0A+		: "r1"					\=0A+	)=
=0A #else=0A-#define __put_kernel_asm(stx,x,ptr)                         =
\=0A-	__asm__ __volatile__ (                              \=0A-		"\n1:\t"=
 stx "\t%2,0(%1)\n"                 \=0A-		"\t.section __ex_table,\"aw\"\=
n"            \=0A-		 "\t.word\t1b,fixup_put_user_skip_1\n"	    \=0A-		 "=
\t.previous"                              \=0A-		: "=3Dr"(__pu_err)      =
                      \=0A-		: "r"(ptr), "r"(x), "0"(__pu_err)	    \=0A-	=
	: "r1")=0A-=0A-#define __put_user_asm(stx,x,ptr)                        =
   \=0A-	__asm__ __volatile__ (                              \=0A-		"\n1:=
\t" stx "\t%2,0(%%sr3,%1)\n"           \=0A-		"\t.section __ex_table,\"aw=
\"\n"            \=0A-		 "\t.word\t1b,fixup_put_user_skip_1\n"      \=0A-=
		 "\t.previous"                              \=0A-		: "=3Dr"(__pu_err)  =
                          \=0A-		: "r"(ptr), "r"(x), "0"(__pu_err)	    \=0A=
-		: "r1")=0A-=0A-#define __put_kernel_asm64(__val,ptr) do {		    	    \=0A=
-	u64 __val64 =3D (u64)(__val);				    \=0A-	u32 hi =3D (__val64) >> 32;	=
				    \=0A-	u32 lo =3D (__val64) & 0xffffffff;				    \=0A-	__asm__ __v=
olatile__ (				    \=0A-		"\n1:\tstw %2,0(%1)\n"			    \=0A-		"\n2:\tstw =
%3,4(%1)\n"			    \=0A-		"\t.section __ex_table,\"aw\"\n"	    \=0A-		 "\t=
.word\t1b,fixup_put_user_skip_2\n"	    \=0A-		 "\t.word\t2b,fixup_put_use=
r_skip_1\n"	    \=0A-		 "\t.previous"				    \=0A-		: "=3Dr"(__pu_err)   =
                         \=0A-		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_er=
r) \=0A-		: "r1");				    \=0A+#define __put_kernel_asm(stx, x, ptr)			\=0A=
+	__asm__ __volatile__ ("\n"			\=0A+	"1:	" stx "		%2, 0(%1)\n"		\=0A+	"	.=
section __ex_table,\"aw\"\n"		\=0A+	"	.word	1b, fixup_put_user_skip_1\n"	=
\=0A+	"	.previous"				\=0A+		: "=3Dr"(__pu_err)			\=0A+		: "r"(ptr), "r"(=
x), "0"(__pu_err)	\=0A+		: "r1"					\=0A+	)=0A+=0A+#define __put_user_asm=
(stx, x, ptr)			\=0A+	__asm__ __volatile__ ("\n"			\=0A+	"1:	" stx "		%2,=
 0(%%sr3, %1)\n"	\=0A+	"	.section __ex_table,\"aw\"\n"		\=0A+	"	.word	1b,=
 fixup_put_user_skip_1\n"	\=0A+	"	.previous"				\=0A+		: "=3Dr"(__pu_err)=
			\=0A+		: "r"(ptr), "r"(x), "0"(__pu_err)	\=0A+		: "r1"					\=0A+	)=0A+=
=0A+#define __put_kernel_asm64(__val, ptr) do {			\=0A+	u64 __val64 =3D (=
u64)(__val);				\=0A+	u32 hi =3D (__val64) >> 32;				\=0A+	u32 lo =3D (__=
val64) & 0xffffffff;			\=0A+	__asm__ __volatile__ ("\n"				\=0A+	"1:	stw	=
	%2, 0(%1)\n"			\=0A+	"2:	stw		%3, 4(%1)\n"			\=0A+	"	.section __ex_table=
,\"aw\"\n"			\=0A+	"	.word	1b, fixup_put_user_skip_2\n"		\=0A+	"	.word	2b=
, fixup_put_user_skip_1\n"		\=0A+	"	.previous"					\=0A+		: "=3Dr"(__pu_e=
rr)				\=0A+		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err)	\=0A+		: "r1"		=
				\=0A+	);							\=0A } while (0)=0A =0A-#define __put_user_asm64(__val=
,ptr) do {		    	    \=0A-	u64 __val64 =3D (u64)__val;				    \=0A-	u32 h=
i =3D (__val64) >> 32;					    \=0A-	u32 lo =3D (__val64) & 0xffffffff;		=
		    \=0A-	__asm__ __volatile__ (				    \=0A-		"\n1:\tstw %2,0(%%sr3,%1=
)\n"		    \=0A-		"\n2:\tstw %3,4(%%sr3,%1)\n"		    \=0A-		"\t.section __e=
x_table,\"aw\"\n"	    \=0A-		 "\t.word\t1b,fixup_get_user_skip_2\n"	    \=
=0A-		 "\t.word\t2b,fixup_get_user_skip_1\n"	    \=0A-		 "\t.previous"			=
	    \=0A-		: "=3Dr"(__pu_err)                            \=0A-		: "r"(pt=
r), "r"(hi), "r"(lo), "0"(__pu_err) \=0A-		: "r1");				    \=0A+#define _=
_put_user_asm64(__val, ptr) do {			\=0A+	u64 __val64 =3D (u64)__val;				\=
=0A+	u32 hi =3D (__val64) >> 32;				\=0A+	u32 lo =3D (__val64) & 0xffffff=
ff;			\=0A+	__asm__ __volatile__ ("\n"				\=0A+	"1:	stw		%2, 0(%%sr3, %1)=
\n"		\=0A+	"2:	stw		%3, 4(%%sr3, %1)\n"		\=0A+	"	.section __ex_table,\"aw=
\"\n"			\=0A+	"	.word	1b, fixup_get_user_skip_2\n"		\=0A+	"	.word	2b, fix=
up_get_user_skip_1\n"		\=0A+	"	.previous"					\=0A+		: "=3Dr"(__pu_err)		=
		\=0A+		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err)	\=0A+		: "r1"						\=
=0A+	);							\=0A } while (0)=0A =0A #endif /* !__LP64__ */=0A@@ -256,7 =
+288,8 @@=0A =0A extern unsigned long lcopy_to_user(void __user *, const =
void *, unsigned long);=0A extern unsigned long lcopy_from_user(void *, c=
onst void __user *, unsigned long);=0A-extern unsigned long lcopy_in_user=
(void __user *, const void __user *, unsigned long);=0A+extern unsigned l=
ong lcopy_in_user(void __user *, const void __user *,=0A+					unsigned lo=
ng);=0A extern long lstrncpy_from_user(char *, const char __user *, long)=
;=0A extern unsigned lclear_user(void __user *,unsigned long);=0A extern =
long lstrnlen_user(const char __user *,long);=0A@@ -265,19 +298,24 @@=0A =
 * Complex access routines -- macros=0A  */=0A =0A-#define strncpy_from_u=
ser lstrncpy_from_user=0A-#define strnlen_user lstrnlen_user=0A-#define s=
trlen_user(str) lstrnlen_user(str, 0x7fffffffL)=0A-#define clear_user lcl=
ear_user=0A-#define __clear_user lclear_user=0A-=0A-unsigned long copy_to=
_user(void __user *dst, const void *src, unsigned long len);=0A-#define _=
_copy_to_user copy_to_user=0A-unsigned long copy_from_user(void *dst, con=
st void __user *src, unsigned long len);=0A-#define __copy_from_user copy=
_from_user=0A-unsigned long copy_in_user(void __user *dst, const void __u=
ser *src, unsigned long len);=0A-#define __copy_in_user copy_in_user=0A-#=
define __copy_to_user_inatomic __copy_to_user=0A-#define __copy_from_user=
_inatomic __copy_from_user=0A+#define strncpy_from_user	lstrncpy_from_use=
r=0A+#define strnlen_user		lstrnlen_user=0A+#define strlen_user(str)	lstr=
nlen_user(str, 0x7fffffffL)=0A+#define clear_user		lclear_user=0A+#define=
 __clear_user		lclear_user=0A+=0A+unsigned long copy_to_user(void __user =
*dst, const void *src,=0A+				unsigned long len);=0A+#define __copy_to_us=
er	copy_to_user=0A+=0A+unsigned long copy_from_user(void *dst, const void=
 __user *src,=0A+				unsigned long len);=0A+#define __copy_from_user 	cop=
y_from_user=0A+=0A+unsigned long copy_in_user(void __user *dst, const voi=
d __user *src,=0A+				unsigned long len);=0A+#define __copy_in_user			cop=
y_in_user=0A+#define __copy_to_user_inatomic		__copy_to_user=0A+#define _=
_copy_from_user_inatomic	__copy_from_user=0A =0A #endif /* __PARISC_UACCE=
SS_H */=0A
--_=__=_XaM3_.1144748258.2A.816162.42.473.52.42.007.1772815055
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--_=__=_XaM3_.1144748258.2A.816162.42.473.52.42.007.1772815055--



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Xref: news.gmane.org gmane.linux.ports.parisc:23567

1. Checkout mainline binutils.
2. Merge our tls patches locally.
3. Checkout mainline gcc.
4. Checkout libc, libc-port, linuxthreads.
5. Merge our TLS patches into binutils locally (only tls, not opd).
6. Build and install binutils.
7. Build and install gcc with the newly installed binutils.
8. Build glibc with the newly installed binutils and gcc.

We are getting close!
~~~~~~~~~~~~~~~~~~~~~
/home/carlos/fsrc/glibc-work/builds/libc/libc_pic.os: In function `__getcwd=
':
../sysdeps/unix/sysv/linux/getcwd.c:90: undefined reference to `MAX'
/home/carlos/fsrc/glibc-work/builds/libc/libc_pic.os: In function `inet_nto=
a':
/mnt/flaire/src/glibc-work/src/libc/inet/inet_ntoa.c:35: undefined
reference to `__tls_get_addr'
collect2: ld returned 1 exit status
make[1]: *** [/home/carlos/fsrc/glibc-work/builds/libc/libc.so] Error 1
make[1]: Leaving directory `/mnt/flaire/src/glibc-work/src/libc'
make: *** [all] Error 2
~~~~~~~~~~~~~~~~~~~~~

I double checked we had a __tls_get_addr definition for our
libc-tls.c, but it looks like the function might be miscompiled. Any
hints are appreciated. I'm utterly puzzled by the missing definition
of MAX, which should be a macro. It looks like I missed some implied
includes.

Cheers,
Carlos.
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Xref: news.gmane.org gmane.linux.ports.parisc:23568

On 4/12/06, Carlos O'Donell <carlos@systemhalted.org> wrote:
> We are getting close!
> ~~~~~~~~~~~~~~~~~~~~~
> /home/carlos/fsrc/glibc-work/builds/libc/libc_pic.os: In function `__getc=
wd':
> ../sysdeps/unix/sysv/linux/getcwd.c:90: undefined reference to `MAX'
> /home/carlos/fsrc/glibc-work/builds/libc/libc_pic.os: In function `inet_n=
toa':
> /mnt/flaire/src/glibc-work/src/libc/inet/inet_ntoa.c:35: undefined
> reference to `__tls_get_addr'
> collect2: ld returned 1 exit status
> make[1]: *** [/home/carlos/fsrc/glibc-work/builds/libc/libc.so] Error 1
> make[1]: Leaving directory `/mnt/flaire/src/glibc-work/src/libc'
> make: *** [all] Error 2
> ~~~~~~~~~~~~~~~~~~~~~

I think the missing __tls_get_addr reference is because without the
linuxthreads tls.h we don't enable the libc-tls.c reference (note it's
wrapped in #ifdef USE_TLS). The output object file is empty, and the
definition is definately nop'd out.

I'll see what I can do to fix that.

Cheers,
Carlos.
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Subject: [parisc-linux] hppa DIR21L and DIR14R relocs against read-only data?
Date: Wed, 12 Apr 2006 23:34:09 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:23569

I'm looking for any generic pointers to something I might have missed.
I'll probably cc libc-ports next.

1. Merged my tls changes into local copy upstream binutils.
2. Merge changes into local copy of upstream glibc.
3. Build binutils, build gcc with binutils, build glibc with binutils and g=
cc.

The trial by fire is the first run of rpcgen for the newly built dynamic lo=
ader.
The dynamic loader crashes with a sigsegv trying to handle a relocation to
a read-only section.

The following interesting relocs are emitted in the dynamic loader:

0001751c  00000302 R_PARISC_DIR21L   0001a528   .rodata + 3674
00017520  00000306 R_PARISC_DIR14R   0001a528   .rodata + 3674
000175a0  00000302 R_PARISC_DIR21L   0001a528   .rodata + 3668
000175b0  00000306 R_PARISC_DIR14R   0001a528   .rodata + 3668

I have support for these in my local glibc patches.
I can debug all the way to the handling of the DIR21L reloc.

(gdb) disassemble 0x4139ee1c 0x4139ee1f
Dump of assembler code from 0x4139ee1c to 0x4139ee1f:
0x4139ee1c <_dl_start+1752>:    stw r20,0(,r7)
End of assembler dump.
(gdb) i r r20
r20            0x239d8826       597526566
(gdb) i r r7
r7             0x413b351c       1094399260

This last instruction is the store to reloc_addr of the newly computed valu=
e.

(gdb) si

Program received signal SIGSEGV, Segmentation fault.
_dl_start (arg=3D0xc00bfc70) at dl-machine.h:595
595             *(unsigned int *)reloc_addr =3D insn;
(gdb)

The map at the time was:

4139c000-413bb000 r-xp 00000000 08:01 5407284                        =20
  /mnt/flaire/src/glibc-work/builds/libc/elf/ld.so

413ca000-413ce000 rwxp 0001e000 08:01 5407284                        =20
  /mnt/flaire/src/glibc-work/builds/libc/elf/ld.so

c00bf000-c00d4000 rwxp c00bf000 00:00 0
[stack]

How does this normally work?
Did I break something fundamental in the toolchain?
I didn't expect to see

Cheers,
Carlos.
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Subject: Re:[parisc-linux] "BUG: soft lockup detected on CPU#0" on recent
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> Hello pa*,
> 
> Just to report some "BUG: soft lockup detected on CPU#0":
> on b2k testing k-2.6.16-pa4 64bit up:
> BUG: soft lockup detected on CPU#0!
> 
[snip]

>  IAOQ[0]: _read_lock+0x18/0x30
>  IAOQ[1]: _read_lock+0x8/0x30
>  RP(r2): send_group_sig_info+0x3c/0xb0
> 
> (on this system also with a previous k-2.6.16-rc4-pa1-n4kmp without act=
ivity
> then waiting my request ;-) )
> 
Hi all,

Could that be the result of the upstream bug:
<http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.4>

At least in the way; I will test it ...

Thanks,
    Joel


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Subject: [parisc-linux] linux-2.6 deller (2.6.17-rc1-pa2) breack 'DISCONTIG'
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> CVSROOT:	/var/cvs
> Module name:	linux-2.6
> Changes by:	deller@cvs.parisc-linux.org	2006-04-12 12:50:38
> 
> Modified files:
> 	.              : Makefile 
> 
> Log message:
> 	2.6.17-rc1-pa2: some 16k page size work (still not functional)
> 
Hello Helge,

Just applying this patch (I mean pa1-pa2):
    * build fine on d380 (32bit smp kernel), b2k (64bit up) and n4k (64bi=
t smp)

    * boot fine on d380 and b2k

    * boot hang very early on n4k (sorry just have, even not full, msg):
[snip]
 model 9000/800/N4000-55
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000007fffffff Size   2048 MB
 1) Start 0x0000000180000000 End 0x00000001ffffffff Size   2048 MB
Total Memory: 4096 MB
Backtrace:
 [<000000001014356c>] release_console_sem+0x34c/0x3b0
 [<0000000010272620>] memset+0x40/0x8e0
 [<00000000103f3900>] csum_partial_copy_from_user+0x0/0xa0
 [<00000000103f31a8>] klist_remove+0x0/0x68
 [<00000000103f2f38>] klist_release+0x0/0x98
 [<00000000103f1978>] packet_release+0x0/0x380
 [<00000000103f0610>] packet_get

hang here while the boot of previous pa1 said:
model 9000/800/N4000-55
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000007fffffff Size   2048 MB
 1) Start 0x0000000180000000 End 0x00000001ffffffff Size   2048 MB
Total Memory: 4096 MB
SMP: bootstrap CPU ID is 0
Built 2 zonelists
[...]

I just rebuild the exactely same src but using flate mem in palce of disc=
ontig
mem and the kernel boot fine (obviously could just access 2 of the 4 Gb o=
f ram)

Hth,
    Joel

=0A=0A----------=0AWordt ook lid van de Scarlet Club via een bestaande Sc=
arlet klant en ontvang cadeaucheques twv EUR 50! Bezoek snel http://www.s=
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Xref: news.gmane.org gmane.linux.ports.parisc:23572

------=_Part_1392_14404280.1145052768186
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This patch imports all the required linuxthreads files.
Also imported are all the files required for linuxthreads tls.

Canonical HPPA tls document:
http://cvs.parisc-linux.org/web/src/documentation/tls/hppa-tls-implementati=
on.tex?view=3Dmarkup

Ok to checkin?

Cheers,
Carlos.

2006-04-14  Carlos O'Donell  <carlos@systemhalted.org>

=09* sysdeps/hppa/linuxthreads/pspinlock.c: New file.
=09* sysdeps/hppa/linuxthreads/pt-machine.h: Likewise.
=09* sysdeps/hppa/linuxthreads/tls.h: Likewise.
=09* sysdeps/unix/sysv/linux/hppa/linuxthreads/aio_cancel.c: Likewise.
=09* sysdeps/unix/sysv/linux/hppa/linuxthreads/malloc-machine.h:
=09Likewise.
=09* sysdeps/unix/sysv/linux/hppa/linuxthreads/pt-initfini.c: Likewise.
=09* sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cancel.h: Likewise.
=09* sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/initspin.h: Likewise.
=09* sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/pthreadtypes.h:
=09Likewise.

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Subject: [parisc-linux] [PATCH] kernel-features.h for hppa
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This keeps hppa up to date on the recent kernel-features.h removal of
all ports arches.

Ok to commit?

Cheers,
Carlos.

2006-04-14  Carlos O'Donell  <carlos@systemhalted.org>

=09* sysdeps/unix/sysv/linux/hppa/kernel-features.h: New file.

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Index: ChangeLog.hppa
===================================================================
RCS file: /cvs/glibc/ports/ChangeLog.hppa,v
retrieving revision 1.2
diff -u -p -r1.2 ChangeLog.hppa
--- ChangeLog.hppa	28 Feb 2006 22:20:13 -0000	1.2
+++ ChangeLog.hppa	14 Apr 2006 22:26:30 -0000
@@ -1,3 +1,8 @@
+2006-04-14  Carlos O'Donell  <carlos@systemhalted.org>
+
+	* sysdeps/unix/sysv/linux/hppa/kernel-features.h: New file.
+
+
 2006-02-28  Roland McGrath  <roland@redhat.com>
 
 	* sysdeps/hppa/shlib-versions: New file.
Index: sysdeps/unix/sysv/linux/hppa/kernel-features.h
===================================================================
RCS file: sysdeps/unix/sysv/linux/hppa/kernel-features.h
diff -N sysdeps/unix/sysv/linux/hppa/kernel-features.h
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ sysdeps/unix/sysv/linux/hppa/kernel-features.h	14 Apr 2006 22:26:30 -0000
@@ -0,0 +1,34 @@
+/* Set flags signalling availability of kernel features based on given
+   kernel version number.
+   Copyright (C) 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+
+/* There are an infinite number of PA-RISC kernel versions numbered
+   2.4.0.  But they've not really been released as such.  We require
+   and expect the final version here.  */
+# define __ASSUME_32BITUIDS		1
+# define __ASSUME_TRUNCATE64_SYSCALL	1
+# define __ASSUME_MMAP2_SYSCALL		1
+# define __ASSUME_STAT64_SYSCALL	1
+# define __ASSUME_IPC64			1
+# define __ASSUME_ST_INO_64_BIT		1
+# define __ASSUME_FCNTL64		1
+# define __ASSUME_GETDENTS64_SYSCALL	1
+
+#include_next <kernel-features.h>

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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: [parisc-linux] [PATCH] Update linux bits/* for hppa.
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Update mman.h and fcntl.h for hppa.

This is a new mail setup for me, so please feel free to use a
cluebat if something is malformed.

Ok to checkin?

Cheers,
Carlos.

2006-04-14  Carlos O'Donell  <carlos@systemhalted.org>

=09* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_GNU]:
=09Define MMAP_FIXED.
=09* sysdeps/unix/sysv/linux/hppa/bits/fcntl.h [__USE_GNU]:
=09Define SYNC_FILE_RANGE_WAIT_BEFORE, SYNC_FILE_RANGE_WRITE,
=09SYNC_FILE_RANGE_WAIT_AFTER, sync_file_range, splice, tee.

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Index: ChangeLog.hppa
===================================================================
RCS file: /cvs/glibc/ports/ChangeLog.hppa,v
retrieving revision 1.2
diff -u -p -r1.2 ChangeLog.hppa
--- ChangeLog.hppa	28 Feb 2006 22:20:13 -0000	1.2
+++ ChangeLog.hppa	14 Apr 2006 22:36:37 -0000
@@ -1,3 +1,11 @@
+2006-04-14  Carlos O'Donell  <carlos@systemhalted.org>
+
+	* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_GNU]: 
+	Define MMAP_FIXED.
+	* sysdeps/unix/sysv/linux/hppa/bits/fcntl.h [__USE_GNU]: 
+	Define SYNC_FILE_RANGE_WAIT_BEFORE, SYNC_FILE_RANGE_WRITE,
+	SYNC_FILE_RANGE_WAIT_AFTER, sync_file_range, splice, tee.
+
 2006-02-28  Roland McGrath  <roland@redhat.com>
 
 	* sysdeps/hppa/shlib-versions: New file.
Index: sysdeps/unix/sysv/linux/hppa/bits/fcntl.h
===================================================================
RCS file: /cvs/glibc/ports/sysdeps/unix/sysv/linux/hppa/bits/fcntl.h,v
retrieving revision 1.7
diff -u -p -r1.7 fcntl.h
--- sysdeps/unix/sysv/linux/hppa/bits/fcntl.h	23 Aug 2004 07:28:44 -0000	1.7
+++ sysdeps/unix/sysv/linux/hppa/bits/fcntl.h	14 Apr 2006 22:36:37 -0000
@@ -172,10 +172,38 @@ struct flock64
 # define POSIX_FADV_NOREUSE	5 /* Data will be accessed once.  */
 #endif
 
+#ifdef __USE_GNU
+# define SYNC_FILE_RANGE_WAIT_BEFORE	1 /* Wait upon writeout of all pages
+					     in the range before performing the
+					     write.  */
+# define SYNC_FILE_RANGE_WRITE		2 /* Initiate writeout of all those
+					     dirty pages in the range which are
+					     not presently under writeback.  */
+# define SYNC_FILE_RANGE_WAIT_AFTER	4 /* Wait upon writeout of all pages in
+					     the range after performing the
+					     write.  */
+#endif
+
 __BEGIN_DECLS
 
+#ifdef __USE_GNU
+
 /* Provide kernel hint to read ahead.  */
 extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
     __THROW;
 
+/* Selective file content synch'ing.  */
+extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
+			    unsigned int __flags);
+
+/* Splice two files together.  */
+extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
+    __THROW;
+
+/* In-kernel implementation of tee for pipe buffers.  */
+extern int tee (int __fdin, int __fdout, size_t __len, unsigned int __flags)
+    __THROW;
+    
+#endif
+    
 __END_DECLS
Index: sysdeps/unix/sysv/linux/hppa/bits/mman.h
===================================================================
RCS file: /cvs/glibc/ports/sysdeps/unix/sysv/linux/hppa/bits/mman.h,v
retrieving revision 1.3
diff -u -p -r1.3 mman.h
--- sysdeps/unix/sysv/linux/hppa/bits/mman.h	25 Sep 2003 16:39:38 -0000	1.3
+++ sysdeps/unix/sysv/linux/hppa/bits/mman.h	14 Apr 2006 22:36:37 -0000
@@ -80,4 +80,7 @@
 /* Flags for `mremap'.  */
 #ifdef __USE_GNU
 # define MREMAP_MAYMOVE 1
+# define MREMAP_FIXED	2
 #endif
+
+


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From - Thu Nov 08 21:34:36 2018
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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] "BUG: soft lockup detected on CPU#0" on recent
	64bit k-2.6.16 (up or smp)
Date: Sun, 16 Apr 2006 20:04:16 +0000
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To: Joel Soete <soete.joel@tiscali.be>
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Joel Soete wrote:
>>Hello pa*,
>>
>>Just to report some "BUG: soft lockup detected on CPU#0":
>>on b2k testing k-2.6.16-pa4 64bit up:
>>BUG: soft lockup detected on CPU#0!
>>
> 
> [snip]
> 
> 
>> IAOQ[0]: _read_lock+0x18/0x30
>> IAOQ[1]: _read_lock+0x8/0x30
>> RP(r2): send_group_sig_info+0x3c/0xb0
>>
>>(on this system also with a previous k-2.6.16-rc4-pa1-n4kmp without activity
>>then waiting my request ;-) )
>>
> 
> Hi all,
> 
> Could that be the result of the upstream bug:
> <http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.4>
> 
> At least in the way; I will test it ...
> 
mmm, seems to help 64bit up kernel runing for a bit more then 3 days on b2k (building in loop kernel)

OTOH not for smp neither on 32bit nor 64bit:
	* 32bit smp 2.6.17-rc1-pa2 hang after some 2 days of run (loop kernel build) on a d380 with msg:
[230961.320000] BUG: soft lockup detected on CPU#1!
[230961.370000] Backtrace:
[230961.400000]  [<10157900>] softlockup_tick+0xf8/0x140
[230961.460000]  [<1013e080>] update_process_times+0x44/0x94
[230961.500000]  [<10109510>] timer_interrupt+0xcc/0x1e4
[230961.500000]  [<10157a58>] handle_IRQ_event+0x5c/0xa4
[230961.500000]  [<10157b44>] __do_IRQ+0xa4/0x220
[230961.500000]  [<10109ca0>] do_cpu_irq_mask+0xd8/0x1b0
[230961.500000]  [<1010c068>] intr_return+0x0/0x1c
[230961.500000]
[230961.500000] BUG: soft lockup detected on CPU#0!
[230961.500000] Backtrace:
[230961.500000]  [<10157900>] softlockup_tick+0xf8/0x140
[230961.500000]  [<1013e080>] update_process_times+0x44/0x94
[230961.500000]  [<10109510>] timer_interrupt+0xcc/0x1e4
[230961.500000]  [<10157a58>] handle_IRQ_event+0x5c/0xa4
[230961.500000]  [<10157b44>] __do_IRQ+0xa4/0x220
[230961.500000]  [<10109ca0>] do_cpu_irq_mask+0xd8/0x1b0
[230961.500000]  [<1010c068>] intr_return+0x0/0x1c
[230961.500000]

	* 64bit smp still hang silently after a bit more then 2 days of same build loop ;-(
	  (even with DETECT_SOFTLOCKUP = y?)

Joel

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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Does it lakes some cloberred r1 in
	__put_kernel_asm() 64bit?
Date: Sun, 16 Apr 2006 20:14:35 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:23576

Hello all,


I tried to apply my 'beautify' asm template to some uaccess.h and figure out that
this hunk din't mentioned that "r1" was cloberred (iirc in fixup text) while
the 32bit one did:

#ifdef __LP64__
#define __put_kernel_asm(stx,x,ptr)                         \
         __asm__ __volatile__ (                              \
                 "\n1:\t" stx "\t%2,0(%1)\n"                 \
                 "\t.section __ex_table,\"aw\"\n"            \
                 "\t.dword\t1b,fixup_put_user_skip_1\n"      \
                 "\t.previous"                               \
                 : "=r"(__pu_err)                            \
                 : "r"(ptr), "r"(x), "0"(__pu_err))
[snip]
#else
#define __put_kernel_asm(stx,x,ptr)                         \
         __asm__ __volatile__ (                              \
                "\n1:\t" stx "\t%2,0(%1)\n"                 \
                "\t.section __ex_table,\"aw\"\n"            \
                 "\t.word\t1b,fixup_put_user_skip_1\n"      \
                 "\t.previous"                              \
                : "=r"(__pu_err)                            \
                : "r"(ptr), "r"(x), "0"(__pu_err)           \
                : "r1")
[snip]

mmm, doesn't seems to change anything (I just check sys_parisc32.s) but may be elsewhere?

Thanks,
	Joel

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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] more whitespace rework and attempt to beautify
	inline asm stuff?
Date: Sun, 16 Apr 2006 20:37:43 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:23577

This is a multi-part message in MIME format.
--------------060503000105010703060408
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Hello all,

Well just stupid white space changes just for the look.

Just here attach a first draft.

Please let me know if some interest to continue ;-)

Thanks,
	Joel

--------------060503000105010703060408
Content-Type: text/plain;
 name="Beautify-asm.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="Beautify-asm.diff"

--- ./arch/parisc/lib/memcpy.c.Orig	2006-04-10 09:24:31.000000000 +0200
+++ ./arch/parisc/lib/memcpy.c	2006-04-10 17:05:38.000000000 +0200
@@ -79,20 +79,24 @@
 #define get_user_space() (segment_eq(get_fs(), KERNEL_DS) ? 0 : mfsp(3))
 #define get_kernel_space() (0)
 
-#define MERGE(w0, sh_1, w1, sh_2)  ({					\
+#define MERGE(w0, sh_1, w1, sh_2)	({				\
 	unsigned int _r;						\
-	asm volatile (							\
-	"mtsar %3\n"							\
-	"shrpw %1, %2, %%sar, %0\n"					\
-	: "=r"(_r)							\
-	: "r"(w0), "r"(w1), "r"(sh_2)					\
+	__asm__ __volatile__ ("\n"					\
+	"	mtsar		%3\n"					\
+	"	shrpw		%1, %2,%%sar, %0"			\
+		: "=r"(_r)						\
+		: "r"(w0), "r"(w1), "r"(sh_2)				\
 	);								\
 	_r;								\
 })
 #define THRESHOLD	16
 
 #ifdef DEBUG_MEMCPY
-#define DPRINTF(fmt, args...) do { printk(KERN_DEBUG "%s:%d:%s ", __FILE__, __LINE__, __FUNCTION__ ); printk(KERN_DEBUG fmt, ##args ); } while (0)
+#define DPRINTF(fmt, args...) do {					\
+	printk(KERN_DEBUG "%s:%d:%s ",					\
+		__FILE__, __LINE__, __FUNCTION__ );			\
+	printk(KERN_DEBUG fmt, ##args );				\
+} while (0)
 #else
 #define DPRINTF(fmt, args...)
 #endif
@@ -103,69 +107,81 @@
 #define EXC_WORD ".dword"
 #endif
 
-#define def_load_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e)	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn ",ma " #_sz "(" _s ",%1), %0\n" 	\
-	"\t.section __ex_table,\"aw\"\n"		\
-	"\t" EXC_WORD "\t1b\n"				\
-	"\t" EXC_WORD "\t" #_e "\n"			\
-	"\t.previous\n"					\
-	: _tt(_t), "+r"(_a)				\
-	: 						\
-	: "r8")
-
-#define def_store_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn ",ma %1, " #_sz "(" _s ",%0)\n" 	\
-	"\t.section __ex_table,\"aw\"\n"		\
-	"\t" EXC_WORD "\t1b\n"				\
-	"\t" EXC_WORD "\t" #_e "\n"			\
-	"\t.previous\n"					\
-	: "+r"(_a) 					\
-	: _tt(_t)					\
-	: "r8")
-
-#define ldbma(_s, _a, _t, _e) def_load_ai_insn(ldbs,1,"=r",_s,_a,_t,_e)
-#define stbma(_s, _t, _a, _e) def_store_ai_insn(stbs,1,"r",_s,_a,_t,_e)
-#define ldwma(_s, _a, _t, _e) def_load_ai_insn(ldw,4,"=r",_s,_a,_t,_e)
-#define stwma(_s, _t, _a, _e) def_store_ai_insn(stw,4,"r",_s,_a,_t,_e)
-#define flddma(_s, _a, _t, _e) def_load_ai_insn(fldd,8,"=f",_s,_a,_t,_e)
-#define fstdma(_s, _t, _a, _e) def_store_ai_insn(fstd,8,"f",_s,_a,_t,_e)
-
-#define def_load_insn(_insn,_tt,_s,_o,_a,_t,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn " " #_o "(" _s ",%1), %0\n"	\
-	"\t.section __ex_table,\"aw\"\n"		\
-	"\t" EXC_WORD "\t1b\n"				\
-	"\t" EXC_WORD "\t" #_e "\n"			\
-	"\t.previous\n"					\
-	: _tt(_t) 					\
-	: "r"(_a)					\
-	: "r8")
-
-#define def_store_insn(_insn,_tt,_s,_t,_o,_a,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn " %0, " #_o "(" _s ",%1)\n" 	\
-	"\t.section __ex_table,\"aw\"\n"		\
-	"\t" EXC_WORD "\t1b\n"				\
-	"\t" EXC_WORD "\t" #_e "\n"			\
-	"\t.previous\n"					\
-	: 						\
-	: _tt(_t), "r"(_a)				\
-	: "r8")
+#define def_load_ai_insn(_insn, _sz, _tt, _s, _a, _t, _e)		\
+	__asm__ __volatile__ ("\n"					\
+	"1:	" #_insn ",ma		" #_sz "(" _s ", %1), %0\n"	\
+	"	.section __ex_table,\"aw\"\n"				\
+	"	" EXC_WORD "	1b\n"					\
+	"	" EXC_WORD "	" #_e "\n"				\
+	"	.previous"						\
+		: _tt(_t), "+r"(_a)					\
+		: 							\
+		: "r8"							\
+	)
+
+#define def_store_ai_insn(_insn, _sz, _tt, _s, _a, _t, _e)		\
+	__asm__ __volatile__ ("\n"					\
+	"1:	" #_insn ",ma		%1, " #_sz "(" _s ", %0)\n" 	\
+	"	.section __ex_table,\"aw\"\n"				\
+	"	" EXC_WORD "	1b\n"					\
+	"	" EXC_WORD "	" #_e "\n"				\
+	"	.previous"						\
+		: "+r"(_a) 						\
+		: _tt(_t)						\
+		: "r8"							\
+	)
+
+#define ldbma(_s, _a, _t, _e) def_load_ai_insn(ldbs, 1, "=r", _s, _a, _t, _e)
+#define stbma(_s, _t, _a, _e) def_store_ai_insn(stbs, 1, "r", _s, _a, _t, _e)
+#define ldwma(_s, _a, _t, _e) def_load_ai_insn(ldw, 4, "=r", _s, _a, _t, _e)
+#define stwma(_s, _t, _a, _e) def_store_ai_insn(stw, 4, "r", _s, _a, _t, _e)
+#define flddma(_s, _a, _t, _e) def_load_ai_insn(fldd, 8, "=f", _s, _a, _t, _e)
+#define fstdma(_s, _t, _a, _e) def_store_ai_insn(fstd, 8, "f", _s, _a, _t, _e)
+
+#define def_load_insn(_insn, _tt, _s, _o, _a, _t, _e) 			\
+	__asm__ __volatile__ ("\n"					\
+	"1:	" #_insn "		" #_o "(" _s ", %1), %0\n"	\
+	"	.section __ex_table,\"aw\"\n"				\
+	"	" EXC_WORD "	1b\n"					\
+	"	" EXC_WORD "	" #_e "\n"				\
+	"	.previous"						\
+		: _tt(_t) 						\
+		: "r"(_a)						\
+		: "r8"							\
+	)
+
+#define def_store_insn(_insn, _tt, _s, _t, _o, _a, _e)			\
+	__asm__ __volatile__ ("\n"					\
+	"1:	" #_insn "		%0, " #_o "(" _s ", %1)\n"	\
+	"	.section __ex_table,\"aw\"\n"				\
+	"	" EXC_WORD "	1b\n"					\
+	"	" EXC_WORD "	" #_e "\n"				\
+	"	.previous"						\
+		: 							\
+		: _tt(_t), "r"(_a)					\
+		: "r8"							\
+	)
 
-#define ldw(_s,_o,_a,_t,_e)	def_load_insn(ldw,"=r",_s,_o,_a,_t,_e)
-#define stw(_s,_t,_o,_a,_e) 	def_store_insn(stw,"r",_s,_t,_o,_a,_e)
+#define ldw(_s, _o, _a, _t, _e)	def_load_insn(ldw, "=r", _s, _o, _a, _t, _e)
+#define stw(_s, _t, _o, _a, _e)	def_store_insn(stw, "r", _s, _t, _o, _a, _e)
 
 #ifdef  CONFIG_PREFETCH
 extern inline void prefetch_src(const void *addr)
 {
-	__asm__("ldw 0(" s_space ",%0), %%r0" : : "r" (addr));
+	__asm__ ("\n"
+	"	ldw		0(" s_space ", %0), %%r0"
+		:
+		: "r" (addr)
+	);
 }
 
 extern inline void prefetch_dst(const void *addr)
 {
-	__asm__("ldd 0(" d_space ",%0), %%r0" : : "r" (addr));
+	__asm__ ("\n"
+	"	ldd		0(" d_space ", %0), %%r0"
+		:
+		: "r" (addr)
+	);
 }
 #else
 #define prefetch_src(addr)
@@ -374,7 +390,7 @@
 
 word_copy:
 	while (len >= 8*sizeof(unsigned int)) {
-		register unsigned int r1,r2,r3,r4,r5,r6,r7,r8;
+		register unsigned int r1, r2, r3, r4, r5, r6, r7, r8;
 		/* prefetch_src((char *)pws + L1_CACHE_BYTES); */
 		ldwma(s_space, pws, r1, pmc_load_exc);
 		ldwma(s_space, pws, r2, pmc_load_exc);
@@ -397,7 +413,7 @@
 	}
 
 	while (len >= 4*sizeof(unsigned int)) {
-		register unsigned int r1,r2,r3,r4;
+		register unsigned int r1, r2, r3, r4;
 		ldwma(s_space, pws, r1, pmc_load_exc);
 		ldwma(s_space, pws, r2, pmc_load_exc);
 		ldwma(s_space, pws, r3, pmc_load_exc);
--- ./include/asm-parisc/system.h.Orig	2006-04-07 18:05:12.000000000 +0200
+++ ./include/asm-parisc/system.h	2006-04-13 10:44:19.000000000 +0200
@@ -45,8 +45,8 @@
 
 extern struct task_struct *_switch_to(struct task_struct *, struct task_struct *);
 
-#define switch_to(prev, next, last) do {			\
-	(last) = _switch_to(prev, next);			\
+#define switch_to(prev, next, last) do {		\
+	(last) = _switch_to(prev, next);		\
 } while(0)
 
 /*
@@ -61,35 +61,65 @@
 
 
 /* interrupt control */
-#define local_save_flags(x)	__asm__ __volatile__("ssm 0, %0" : "=r" (x) : : "memory")
-#define local_irq_disable()	__asm__ __volatile__("rsm %0,%%r0\n" : : "i" (PSW_I) : "memory" )
-#define local_irq_enable()	__asm__ __volatile__("ssm %0,%%r0\n" : : "i" (PSW_I) : "memory" )
-
-#define local_irq_save(x) \
-	__asm__ __volatile__("rsm %1,%0" : "=r" (x) :"i" (PSW_I) : "memory" )
-#define local_irq_restore(x) \
-	__asm__ __volatile__("mtsm %0" : : "r" (x) : "memory" )
-
-#define irqs_disabled()			\
-({					\
-	unsigned long flags;		\
-	local_save_flags(flags);	\
-	(flags & PSW_I) == 0;		\
+#define local_save_flags(x)				\
+	__asm__ __volatile__ ("\n"			\
+	"	ssm		0, %0"			\
+		: "=r" (x)				\
+		: /* no inputs */			\
+		: "memory"				\
+	)
+#define local_irq_disable()				\
+	__asm__ __volatile__ ("\n"			\
+	"	rsm		%0, %%r0"		\
+		: /* no outputs */			\
+		: "i" (PSW_I)				\
+		: "memory"				\
+	)
+#define local_irq_enable()				\
+	__asm__ __volatile__ ("\n"			\
+	"	ssm		%0, %%r0"		\
+		: /* no outputs */			\
+		: "i" (PSW_I)				\
+		: "memory"				\
+	)
+
+#define local_irq_save(x)				\
+	__asm__ __volatile__ ("\n"			\
+	"	rsm		%1, %0"			\
+		: "=r" (x)				\
+		: "i" (PSW_I)				\
+		: "memory"				\
+	)
+#define local_irq_restore(x)				\
+	__asm__ __volatile__ ("\n"			\
+	"	mtsm		%0"			\
+		: /* no outputs */			\
+		: "r" (x)				\
+		: "memory"				\
+	)
+
+#define irqs_disabled()	({				\
+	unsigned long flags;				\
+	local_save_flags(flags);			\
+	(flags & PSW_I) == 0;				\
 })
 
-#define mfctl(reg)	({		\
-	unsigned long cr;		\
-	__asm__ __volatile__(		\
-		"mfctl " #reg ",%0" :	\
-		 "=r" (cr)		\
-	);				\
-	cr;				\
+#define mfctl(reg)	({				\
+	unsigned long cr;				\
+	__asm__ __volatile__ ("\n"			\
+	"	mfctl		" #reg ", %0"		\
+		: "=r" (cr)				\
+	);						\
+	cr;						\
 })
 
-#define mtctl(gr, cr) \
-	__asm__ __volatile__("mtctl %0,%1" \
-		: /* no outputs */ \
-		: "r" (gr), "i" (cr) : "memory")
+#define mtctl(gr, cr)					\
+	__asm__ __volatile__ ("\n"			\
+	"	mtctl		%0, %1"			\
+		: /* no outputs */			\
+		: "r" (gr), "i" (cr)			\
+		: "memory"				\
+	)
 
 /* these are here to de-mystefy the calling code, and to provide hooks */
 /* which I needed for debugging EIEM problems -PB */
@@ -99,19 +129,22 @@
 	mtctl(val, 15);
 }
 
-#define mfsp(reg)	({		\
-	unsigned long cr;		\
-	__asm__ __volatile__(		\
-		"mfsp " #reg ",%0" :	\
-		 "=r" (cr)		\
-	);				\
-	cr;				\
+#define mfsp(reg)	({				\
+	unsigned long cr;				\
+	__asm__ __volatile__ ("\n"			\
+	"	mfsp		" #reg ", %0"		\
+		: "=r" (cr)				\
+	);						\
+	cr;						\
 })
 
-#define mtsp(gr, cr) \
-	__asm__ __volatile__("mtsp %0,%1" \
-		: /* no outputs */ \
-		: "r" (gr), "i" (cr) : "memory")
+#define mtsp(gr, cr)					\
+	__asm__ __volatile__ ("\n"			\
+	"	mtsp		%0, %1"			\
+		: /* no outputs */			\
+		: "r" (gr), "i" (cr)			\
+		: "memory"				\
+	)
 
 
 /*
@@ -134,12 +167,12 @@
 ** The __asm__ op below simple prevents gcc/ld from reordering
 ** instructions across the mb() "call".
 */
-#define mb()		__asm__ __volatile__("":::"memory")	/* barrier() */
-#define rmb()		mb()
-#define wmb()		mb()
-#define smp_mb()	mb()
-#define smp_rmb()	mb()
-#define smp_wmb()	mb()
+#define mb()		__asm__ __volatile__ ("":::"memory")	/* barrier() */
+#define rmb()				mb()
+#define wmb()				mb()
+#define smp_mb()			mb()
+#define smp_rmb()			mb()
+#define smp_wmb()			mb()
 #define smp_read_barrier_depends()	do { } while(0)
 #define read_barrier_depends()		do { } while(0)
 
@@ -179,10 +212,14 @@
 #endif /*!CONFIG_PA20*/
 
 /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
-#define __ldcw(a) ({ \
-	unsigned __ret; \
-	__asm__ __volatile__(LDCW " 0(%1),%0" : "=r" (__ret) : "r" (a)); \
-	__ret; \
+#define __ldcw(a)	({				\
+	unsigned __ret;					\
+	__asm__ __volatile__ ("\n"			\
+	"	" LDCW "		0(%1), %0"	\
+		: "=r" (__ret)				\
+		: "r" (a)				\
+	);						\
+	__ret;						\
 })
 
 #ifdef CONFIG_SMP
--- ./include/asm-parisc/bitops.h.Orig	2006-04-10 11:30:36.000000000 +0200
+++ ./include/asm-parisc/bitops.h	2006-04-10 18:10:06.000000000 +0200
@@ -129,30 +129,31 @@
 {
 	unsigned long ret;
 
-	__asm__(
+	__asm__ ("\n"
 #ifdef __LP64__
-		" ldi       63,%1\n"
-		" extrd,u,*<>  %0,63,32,%%r0\n"
-		" extrd,u,*TR  %0,31,32,%0\n"	/* move top 32-bits down */
-		" addi    -32,%1,%1\n"
+	"	ldi		63, %1\n"
+	"	extrd,u,*<>	%0, 63,32, %%r0\n"
+	"	extrd,u,*TR	%0, 31,32, %0\n"	/* move top 32-bits down */
+	"	addi		-32, %1, %1\n"
 #else
-		" ldi       31,%1\n"
+	"	ldi		31, %1\n"
 #endif
-		" extru,<>  %0,31,16,%%r0\n"
-		" extru,TR  %0,15,16,%0\n"	/* xxxx0000 -> 0000xxxx */
-		" addi    -16,%1,%1\n"
-		" extru,<>  %0,31,8,%%r0\n"
-		" extru,TR  %0,23,8,%0\n"	/* 0000xx00 -> 000000xx */
-		" addi    -8,%1,%1\n"
-		" extru,<>  %0,31,4,%%r0\n"
-		" extru,TR  %0,27,4,%0\n"	/* 000000x0 -> 0000000x */
-		" addi    -4,%1,%1\n"
-		" extru,<>  %0,31,2,%%r0\n"
-		" extru,TR  %0,29,2,%0\n"	/* 0000000y, 1100b -> 0011b */
-		" addi    -2,%1,%1\n"
-		" extru,=  %0,31,1,%%r0\n"	/* check last bit */
-		" addi    -1,%1,%1\n"
-			: "+r" (x), "=r" (ret) );
+	"	extru,<>	%0, 31,16, %%r0\n"
+	"	extru,TR	%0, 15,16, %0\n"	/* xxxx0000 -> 0000xxxx */
+	"	addi		-16, %1, %1\n"
+	"	extru,<>	%0, 31,8, %%r0\n"
+	"	extru,TR	%0, 23,8, %0\n"		/* 0000xx00 -> 000000xx */
+	"	addi		-8, %1, %1\n"
+	"	extru,<>	%0, 31,4, %%r0\n"
+	"	extru,TR	%0, 27,4, %0\n"		/* 000000x0 -> 0000000x */
+	"	addi		-4, %1, %1\n"
+	"	extru,<>	%0, 31,2, %%r0\n"
+	"	extru,TR	%0, 29,2, %0\n"		/* 0000000y, 1100b -> 0011b */
+	"	addi		-2, %1, %1\n"
+	"	extru,=		%0, 31,1, %%r0\n"	/* check last bit */
+	"	addi		-1, %1, %1"
+		: "+r" (x), "=r" (ret)
+	);
 	return ret;
 }
 
@@ -179,24 +180,24 @@
 	if (!x)
 		return 0;
 
-	__asm__(
-	"	ldi		1,%1\n"
-	"	extru,<>	%0,15,16,%%r0\n"
-	"	zdep,TR		%0,15,16,%0\n"		/* xxxx0000 */
-	"	addi		16,%1,%1\n"
-	"	extru,<>	%0,7,8,%%r0\n"
-	"	zdep,TR		%0,23,24,%0\n"		/* xx000000 */
-	"	addi		8,%1,%1\n"
-	"	extru,<>	%0,3,4,%%r0\n"
-	"	zdep,TR		%0,27,28,%0\n"		/* x0000000 */
-	"	addi		4,%1,%1\n"
-	"	extru,<>	%0,1,2,%%r0\n"
-	"	zdep,TR		%0,29,30,%0\n"		/* y0000000 (y&3 = 0) */
-	"	addi		2,%1,%1\n"
-	"	extru,=		%0,0,1,%%r0\n"
-	"	addi		1,%1,%1\n"		/* if y & 8, add 1 */
-		: "+r" (x), "=r" (ret) );
-
+	__asm__ ("\n"
+	"	ldi		1, %1\n"
+	"	extru,<>	%0, 15,16, %%r0\n"
+	"	zdep,TR		%0, 15,16, %0\n"		/* xxxx0000 */
+	"	addi		16, %1, %1\n"
+	"	extru,<>	%0, 7,8, %%r0\n"
+	"	zdep,TR		%0, 23,24, %0\n"		/* xx000000 */
+	"	addi		8, %1, %1\n"
+	"	extru,<>	%0, 3,4, %%r0\n"
+	"	zdep,TR		%0, 27,28, %0\n"		/* x0000000 */
+	"	addi		4, %1, %1\n"
+	"	extru,<>	%0, 1,2, %%r0\n"
+	"	zdep,TR		%0, 29,30, %0\n"		/* y0000000 (y&3 = 0) */
+	"	addi		2, %1, %1\n"
+	"	extru,=		%0, 0,1, %%r0\n"
+	"	addi		1, %1, %1"			/* if y & 8, add 1 */
+		: "+r" (x), "=r" (ret)
+	);
 	return ret;
 }
 
@@ -215,9 +216,9 @@
 /* '3' is bits per byte */
 #define LE_BYTE_ADDR ((sizeof(unsigned long) - 1) << 3)
 
-#define ext2_set_bit_atomic(l,nr,addr) \
+#define ext2_set_bit_atomic(l, nr, addr) \
 		test_and_set_bit((nr)   ^ LE_BYTE_ADDR, (unsigned long *)addr)
-#define ext2_clear_bit_atomic(l,nr,addr) \
+#define ext2_clear_bit_atomic(l, nr, addr) \
 		test_and_clear_bit( (nr) ^ LE_BYTE_ADDR, (unsigned long *)addr)
 
 #endif	/* __KERNEL__ */
--- ./include/asm-parisc/cache.h.Orig	2006-04-10 11:54:04.000000000 +0200
+++ ./include/asm-parisc/cache.h	2006-04-10 18:11:23.000000000 +0200
@@ -65,9 +65,24 @@
 extern int icache_stride;
 extern struct pdc_cache_info cache_info;
 
-#define pdtlb(addr)         asm volatile("pdtlb 0(%%sr1,%0)" : : "r" (addr));
-#define pitlb(addr)         asm volatile("pitlb 0(%%sr1,%0)" : : "r" (addr));
-#define pdtlb_kernel(addr)  asm volatile("pdtlb 0(%0)" : : "r" (addr));
+#define pdtlb(addr)					\
+	__asm__ __volatile__ ("\n"			\
+	"	pdtlb		0(%%sr1, %0)"		\
+		:					\
+		: "r" (addr)				\
+	)
+#define pitlb(addr)					\
+	__asm__ __volatile__ ("\n"			\
+	"	pitlb		0(%%sr1, %0)"		\
+		:					\
+		: "r" (addr)				\
+	)
+#define pdtlb_kernel(addr)				\
+	__asm__ __volatile__ ("\n"			\
+	"	pdtlb		0(%0)"			\
+		:					\
+		: "r" (addr)				\
+	)
 
 #endif /* ! __ASSEMBLY__ */
 
--- ./include/asm-parisc/cacheflush.h.Orig	2006-04-10 12:16:54.000000000 +0200
+++ ./include/asm-parisc/cacheflush.h	2006-04-10 17:39:04.000000000 +0200
@@ -16,7 +16,7 @@
 #define flush_cache_mm(mm) flush_cache_all_local()
 #endif
 
-#define flush_kernel_dcache_range(start,size) \
+#define flush_kernel_dcache_range(start, size) \
 	flush_kernel_dcache_range_asm((start), (start)+(size));
 
 extern void flush_cache_all_local(void);
@@ -41,7 +41,7 @@
 flush_user_dcache_range(unsigned long start, unsigned long end)
 {
 	if ((end - start) < parisc_cache_flush_threshold)
-		flush_user_dcache_range_asm(start,end);
+		flush_user_dcache_range_asm(start, end);
 	else
 		flush_data_cache();
 }
@@ -50,7 +50,7 @@
 flush_user_icache_range(unsigned long start, unsigned long end)
 {
 	if ((end - start) < parisc_cache_flush_threshold)
-		flush_user_icache_range_asm(start,end);
+		flush_user_icache_range_asm(start, end);
 	else
 		flush_instruction_cache();
 }
@@ -62,21 +62,26 @@
 #define flush_dcache_mmap_unlock(mapping) \
 	write_unlock_irq(&(mapping)->tree_lock)
 
-#define flush_icache_page(vma,page)	do { flush_kernel_dcache_page(page); flush_kernel_icache_page(page_address(page)); } while (0)
+#define flush_icache_page(vma, page)	do {				\
+	flush_kernel_dcache_page(page);					\
+	flush_kernel_icache_page(page_address(page));			\
+} while (0)
 
-#define flush_icache_range(s,e)		do { flush_kernel_dcache_range_asm(s,e); flush_kernel_icache_range_asm(s,e); } while (0)
+#define flush_icache_range(s, e)	do {				\
+	flush_kernel_dcache_range_asm(s, e);				\
+	flush_kernel_icache_range_asm(s, e);				\
+} while (0)
 
-#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
-do { \
-	flush_cache_page(vma, vaddr, page_to_pfn(page)); \
-	memcpy(dst, src, len); \
-	flush_kernel_dcache_range_asm((unsigned long)dst, (unsigned long)dst + len); \
+#define copy_to_user_page(vma, page, vaddr, dst, src, len)	do {	\
+	flush_cache_page(vma, vaddr, page_to_pfn(page));		\
+	memcpy(dst, src, len);						\
+	flush_kernel_dcache_range_asm((unsigned long)dst,		\
+					(unsigned long)dst + len);	\
 } while (0)
 
-#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
-do { \
-	flush_cache_page(vma, vaddr, page_to_pfn(page)); \
-	memcpy(dst, src, len); \
+#define copy_from_user_page(vma, page, vaddr, dst, src, len)	do {	\
+	flush_cache_page(vma, vaddr, page_to_pfn(page));		\
+	memcpy(dst, src, len);						\
 } while (0)
 
 static inline void flush_cache_range(struct vm_area_struct *vma,
@@ -91,8 +96,8 @@
 
 	sr3 = mfsp(3);
 	if (vma->vm_mm->context == sr3) {
-		flush_user_dcache_range(start,end);
-		flush_user_icache_range(start,end);
+		flush_user_dcache_range(start, end);
+		flush_user_icache_range(start, end);
 	} else {
 		flush_cache_all();
 	}
--- ./include/asm-parisc/byteorder.h.Orig	2006-04-10 12:23:08.000000000 +0200
+++ ./include/asm-parisc/byteorder.h	2006-04-10 18:13:30.000000000 +0200
@@ -8,31 +8,37 @@
 
 static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
 {
-	__asm__("dep %0, 15, 8, %0\n\t"		/* deposit 00ab -> 0bab */
-		"shd %%r0, %0, 8, %0"		/* shift 000000ab -> 00ba */
+	__asm__ ("\n"
+	"	dep		%0, 15,8, %0\n"		/* deposit 00ab -> 0bab */
+	"	shd		%%r0, %0,8, %0"		/* shift 000000ab -> 00ba */
 		: "=r" (x)
-		: "0" (x));
+		: "0" (x)
+	);
 	return x;
 }
 
 static __inline__ __attribute_const__ __u32 ___arch__swab24(__u32 x)
 {
-	__asm__("shd %0, %0, 8, %0\n\t"		/* shift xabcxabc -> cxab */
-		"dep %0, 15, 8, %0\n\t"		/* deposit cxab -> cbab */
-		"shd %%r0, %0, 8, %0"		/* shift 0000cbab -> 0cba */
+	__asm__ ("\n"
+	"	shd 		%0, %0,8, %0\n"		/* shift xabcxabc -> cxab */
+	"	dep		%0, 15,8, %0\n"		/* deposit cxab -> cbab */
+	"	shd		%%r0, %0,8, %0"		/* shift 0000cbab -> 0cba */
 		: "=r" (x)
-		: "0" (x));
+		: "0" (x)
+	);
 	return x;
 }
 
 static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
 {
 	unsigned int temp;
-	__asm__("shd %0, %0, 16, %1\n\t"	/* shift abcdabcd -> cdab */
-		"dep %1, 15, 8, %1\n\t"		/* deposit cdab -> cbab */
-		"shd %0, %1, 8, %0"		/* shift abcdcbab -> dcba */
+	__asm__ ("\n"
+	"	shd		%0, %0,16, %1\n"	/* shift abcdabcd -> cdab */
+	"	dep		%1, 15,8, %1\n"		/* deposit cdab -> cbab */
+	"	shd		%0, %1,8, %0"		/* shift abcdcbab -> dcba */
 		: "=r" (x), "=&r" (temp)
-		: "0" (x));
+		: "0" (x)
+	);
 	return x;
 }
 
@@ -50,12 +56,14 @@
 */
 static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x) {
 	__u64 temp;
-	__asm__("permh,3210 %0, %0\n\t"
-		"hshl %0, 8, %1\n\t"
-		"hshr,u %0, 8, %0\n\t"
-		"or %1, %0, %0"
+	__asm__ ("\n"
+	"	permh,3210	%0, %0\n"
+	"	hshl		%0, 8, %1\n"
+	"	hshr,u		%0, 8, %0\n"
+	"	or		%1, %0, %0"
 		: "=r" (x), "=&r" (temp)
-		: "0" (x));
+		: "0" (x)
+	);
 	return x;
 }
 #define __arch__swab64(x) ___arch__swab64(x)
--- ./include/asm-parisc/checksum.h.Orig	2006-04-10 14:30:21.000000000 +0200
+++ ./include/asm-parisc/checksum.h	2006-04-10 18:17:59.000000000 +0200
@@ -44,31 +44,31 @@
 	unsigned int sum;
 
 
-	__asm__ __volatile__ (
-"	ldws,ma		4(%1), %0\n"
-"	addib,<=	-4, %2, 2f\n"
-"\n"
-"	ldws		4(%1), %%r20\n"
-"	ldws		8(%1), %%r21\n"
-"	add		%0, %%r20, %0\n"
-"	ldws,ma		12(%1), %%r19\n"
-"	addc		%0, %%r21, %0\n"
-"	addc		%0, %%r19, %0\n"
-"1:	ldws,ma		4(%1), %%r19\n"
-"	addib,<		0, %2, 1b\n"
-"	addc		%0, %%r19, %0\n"
-"\n"
-"	extru		%0, 31, 16, %%r20\n"
-"	extru		%0, 15, 16, %%r21\n"
-"	addc		%%r20, %%r21, %0\n"
-"	extru		%0, 15, 16, %%r21\n"
-"	add		%0, %%r21, %0\n"
-"	subi		-1, %0, %0\n"
-"2:\n"
-	: "=r" (sum), "=r" (iph), "=r" (ihl)
-	: "1" (iph), "2" (ihl)
-	: "r19", "r20", "r21" );
-
+	__asm__ __volatile__ ("\n"
+	"	ldws,ma		4(%1), %0\n"
+	"	addib,<=	-4, %2, 2f\n"
+	"\n"
+	"	ldws		4(%1), %%r20\n"
+	"	ldws		8(%1), %%r21\n"
+	"	add		%0, %%r20, %0\n"
+	"	ldws,ma		12(%1), %%r19\n"
+	"	addc		%0, %%r21, %0\n"
+	"	addc		%0, %%r19, %0\n"
+	"1:	ldws,ma		4(%1), %%r19\n"
+	"	addib,<		0, %2, 1b\n"
+	"	addc		%0, %%r19, %0\n"
+	"\n"
+	"	extru		%0, 31,16, %%r20\n"
+	"	extru		%0, 15,16, %%r21\n"
+	"	addc		%%r20, %%r21, %0\n"
+	"	extru		%0, 15,16, %%r21\n"
+	"	add		%0, %%r21, %0\n"
+	"	subi		-1, %0, %0\n"
+	"2:"
+		: "=r" (sum), "=r" (iph), "=r" (ihl)
+		: "1" (iph), "2" (ihl)
+		: "r19", "r20", "r21"
+	);
 	return(sum);
 }
 
@@ -91,13 +91,14 @@
 					       unsigned short proto,
 					       unsigned int sum) 
 {
-	__asm__(
-	"	add  %1, %0, %0\n"
-	"	addc %2, %0, %0\n"
-	"	addc %3, %0, %0\n"
-	"	addc %%r0, %0, %0\n"
+	__asm__ ("\n"
+	"	add		%1, %0, %0\n"
+	"	addc		%2, %0, %0\n"
+	"	addc		%3, %0, %0\n"
+	"	addc		%%r0, %0, %0"
 		: "=r" (sum)
-		: "r" (daddr), "r"(saddr), "r"((proto<<16)+len), "0"(sum));
+		: "r" (daddr), "r"(saddr), "r"((proto<<16)+len), "0"(sum)
+	);
     return sum;
 }
 
@@ -130,7 +131,7 @@
 						     unsigned short proto,
 						     unsigned int sum) 
 {
-	__asm__ __volatile__ (
+	__asm__ __volatile__ ("\n"
 
 #if BITS_PER_LONG > 32
 
@@ -140,20 +141,20 @@
 	** Try to keep 4 registers with "live" values ahead of the ALU.
 	*/
 
-"	ldd,ma		8(%1), %%r19\n"	/* get 1st saddr word */
-"	ldd,ma		8(%2), %%r20\n"	/* get 1st daddr word */
-"	add		%8, %3, %3\n"/* add 16-bit proto + len */
-"	add		%%r19, %0, %0\n"
-"	ldd,ma		8(%1), %%r21\n"	/* 2cd saddr */
-"	ldd,ma		8(%2), %%r22\n"	/* 2cd daddr */
-"	add,dc		%%r20, %0, %0\n"
-"	add,dc		%%r21, %0, %0\n"
-"	add,dc		%%r22, %0, %0\n"
-"	add,dc		%3, %0, %0\n"  /* fold in proto+len | carry bit */
-"	extrd,u		%0, 31, 32, %%r19\n"	/* copy upper half down */
-"	depdi		0, 31, 32, %0\n"	/* clear upper half */
-"	add		%%r19, %0, %0\n"	/* fold into 32-bits */
-"	addc		0, %0, %0\n"		/* add carry */
+	"	ldd,ma		8(%1), %%r19\n"	/* get 1st saddr word */
+	"	ldd,ma		8(%2), %%r20\n"	/* get 1st daddr word */
+	"	add		%8, %3, %3\n"/* add 16-bit proto + len */
+	"	add		%%r19, %0, %0\n"
+	"	ldd,ma		8(%1), %%r21\n"	/* 2cd saddr */
+	"	ldd,ma		8(%2), %%r22\n"	/* 2cd daddr */
+	"	add,dc		%%r20, %0, %0\n"
+	"	add,dc		%%r21, %0, %0\n"
+	"	add,dc		%%r22, %0, %0\n"
+	"	add,dc		%3, %0, %0\n"  /* fold in proto+len | carry bit */
+	"	extrd,u		%0, 31, 32, %%r19\n"	/* copy upper half down */
+	"	depdi		0, 31, 32, %0\n"	/* clear upper half */
+	"	add		%%r19, %0, %0\n"	/* fold into 32-bits */
+	"	addc		0, %0, %0"		/* add carry */
 
 #else
 
@@ -163,29 +164,30 @@
 	** result from the previous operation (eg r0 + x)
 	*/
 
-"	ldw,ma		4(%1), %%r19\n"	/* get 1st saddr word */
-"	ldw,ma		4(%2), %%r20\n"	/* get 1st daddr word */
-"	add		%8, %3, %3\n"	/* add 16-bit proto + len */
-"	add		%%r19, %0, %0\n"
-"	ldw,ma		4(%1), %%r21\n"	/* 2cd saddr */
-"	addc		%%r20, %0, %0\n"
-"	ldw,ma		4(%2), %%r22\n"	/* 2cd daddr */
-"	addc		%%r21, %0, %0\n"
-"	ldw,ma		4(%1), %%r19\n"	/* 3rd saddr */
-"	addc		%%r22, %0, %0\n"
-"	ldw,ma		4(%2), %%r20\n"	/* 3rd daddr */
-"	addc		%%r19, %0, %0\n"
-"	ldw,ma		4(%1), %%r21\n"	/* 4th saddr */
-"	addc		%%r20, %0, %0\n"
-"	ldw,ma		4(%2), %%r22\n"	/* 4th daddr */
-"	addc		%%r21, %0, %0\n"
-"	addc		%%r22, %0, %0\n"
-"	addc		%3, %0, %0\n"	/* fold in proto+len, catch carry */
+	"	ldw,ma		4(%1), %%r19\n"	/* get 1st saddr word */
+	"	ldw,ma		4(%2), %%r20\n"	/* get 1st daddr word */
+	"	add		%8, %3, %3\n"	/* add 16-bit proto + len */
+	"	add		%%r19, %0, %0\n"
+	"	ldw,ma		4(%1), %%r21\n"	/* 2cd saddr */
+	"	addc		%%r20, %0, %0\n"
+	"	ldw,ma		4(%2), %%r22\n"	/* 2cd daddr */
+	"	addc		%%r21, %0, %0\n"
+	"	ldw,ma		4(%1), %%r19\n"	/* 3rd saddr */
+	"	addc		%%r22, %0, %0\n"
+	"	ldw,ma		4(%2), %%r20\n"	/* 3rd daddr */
+	"	addc		%%r19, %0, %0\n"
+	"	ldw,ma		4(%1), %%r21\n"	/* 4th saddr */
+	"	addc		%%r20, %0, %0\n"
+	"	ldw,ma		4(%2), %%r22\n"	/* 4th daddr */
+	"	addc		%%r21, %0, %0\n"
+	"	addc		%%r22, %0, %0\n"
+	"	addc		%3, %0, %0"	/* fold in proto+len, catch carry */
 
 #endif
-	: "=r" (sum), "=r" (saddr), "=r" (daddr), "=r" (len)
-	: "0" (sum), "1" (saddr), "2" (daddr), "3" (len), "r" (proto)
-	: "r19", "r20", "r21", "r22");
+		: "=r" (sum), "=r" (saddr), "=r" (daddr), "=r" (len)
+		: "0" (sum), "1" (saddr), "2" (daddr), "3" (len), "r" (proto)
+		: "r19", "r20", "r21", "r22"
+	);
 	return csum_fold(sum);
 }
 
--- ./include/asm-parisc/delay.h.Orig	2006-04-10 14:43:17.000000000 +0200
+++ ./include/asm-parisc/delay.h	2006-04-10 18:18:38.000000000 +0200
@@ -12,11 +12,12 @@
  */
 
 static __inline__ void __delay(unsigned long loops) {
-	asm volatile(
+	__asm__ __volatile__ ("\n"
 	"	.balignl	64,0x34000034\n"
-	"	addib,UV -1,%0,.\n"
-	"	nop\n"
-		: "=r" (loops) : "0" (loops));
+	"	addib,UV	-1,%0,.\n"
+	"	nop"
+		: "=r" (loops) : "0" (loops)
+	);
 }
 
 static __inline__ void __cr16_delay(unsigned long clocks) {
--- ./include/asm-parisc/io.h.Orig	2006-04-10 14:46:05.000000000 +0200
+++ ./include/asm-parisc/io.h	2006-04-13 10:42:33.000000000 +0200
@@ -30,12 +30,13 @@
 	long flags;
 	unsigned char ret;
 
-	__asm__ __volatile__(
-	"	rsm	2,%0\n"
-	"	ldbx	0(%2),%1\n"
-	"	mtsm	%0\n"
-	: "=&r" (flags), "=r" (ret) : "r" (addr) );
-
+	__asm__ __volatile__ ("\n"
+	"	rsm		2, %0\n"
+	"	ldbx		0(%2), %1\n"
+	"	mtsm		%0"
+		: "=&r" (flags), "=r" (ret)
+		: "r" (addr)
+	);
 	return ret;
 }
 
@@ -44,12 +45,13 @@
 	long flags;
 	unsigned short ret;
 
-	__asm__ __volatile__(
-	"	rsm	2,%0\n"
-	"	ldhx	0(%2),%1\n"
-	"	mtsm	%0\n"
-	: "=&r" (flags), "=r" (ret) : "r" (addr) );
-
+	__asm__ __volatile__ ("\n"
+	"	rsm		2, %0\n"
+	"	ldhx		0(%2), %1\n"
+	"	mtsm		%0"
+		: "=&r" (flags), "=r" (ret)
+		: "r" (addr)
+	);
 	return ret;
 }
 
@@ -57,10 +59,11 @@
 {
 	u32 ret;
 
-	__asm__ __volatile__(
-	"	ldwax	0(%1),%0\n"
-	: "=r" (ret) : "r" (addr) );
-
+	__asm__ __volatile__ ("\n"
+	"	ldwax		0(%1), %0"
+		: "=r" (ret)
+		: "r" (addr)
+	);
 	return ret;
 }
 
@@ -69,9 +72,11 @@
 	unsigned long long ret;
 
 #ifdef __LP64__
-	__asm__ __volatile__(
-	"	ldda	0(%1),%0\n"
-	:  "=r" (ret) : "r" (addr) );
+	__asm__ __volatile__ ("\n"
+	"	ldda		0(%1), %0"
+		: "=r" (ret)
+		: "r" (addr)
+	);
 #else
 	/* two reads may have side effects.. */
 	ret = ((u64) gsc_readl(addr)) << 32;
@@ -83,36 +88,44 @@
 static inline void gsc_writeb(unsigned char val, unsigned long addr)
 {
 	long flags;
-	__asm__ __volatile__(
-	"	rsm	2,%0\n"
-	"	stbs	%1,0(%2)\n"
-	"	mtsm	%0\n"
-	: "=&r" (flags) :  "r" (val), "r" (addr) );
+	__asm__ __volatile__ ("\n"
+	"	rsm		2, %0\n"
+	"	stbs		%1, 0(%2)\n"
+	"	mtsm		%0"
+		: "=&r" (flags)
+		: "r" (val), "r" (addr)
+	);
 }
 
 static inline void gsc_writew(unsigned short val, unsigned long addr)
 {
 	long flags;
-	__asm__ __volatile__(
-	"	rsm	2,%0\n"
-	"	sths	%1,0(%2)\n"
-	"	mtsm	%0\n"
-	: "=&r" (flags) :  "r" (val), "r" (addr) );
+	__asm__ __volatile__ ("\n"
+	"	rsm		2, %0\n"
+	"	sths		%1, 0(%2)\n"
+	"	mtsm		%0"
+		: "=&r" (flags)
+		: "r" (val), "r" (addr)
+	);
 }
 
 static inline void gsc_writel(unsigned int val, unsigned long addr)
 {
-	__asm__ __volatile__(
-	"	stwas	%0,0(%1)\n"
-	: :  "r" (val), "r" (addr) );
+	__asm__ __volatile__ ("\n"
+	"	stwas		%0, 0(%1)"
+		:
+		: "r" (val), "r" (addr)
+	);
 }
 
 static inline void gsc_writeq(unsigned long long val, unsigned long addr)
 {
 #ifdef __LP64__
-	__asm__ __volatile__(
-	"	stda	%0,0(%1)\n"
-	: :  "r" (val), "r" (addr) );
+	__asm__ __volatile__ ("\n"
+	"	stda		%0, 0(%1)"
+		:
+		: "r" (val), "r" (addr)
+	);
 #else
 	/* two writes may have side effects.. */
 	gsc_writel(val >> 32, addr);
--- ./include/asm-parisc/processor.h.Orig	2006-04-10 15:41:18.000000000 +0200
+++ ./include/asm-parisc/processor.h	2006-04-10 18:24:23.000000000 +0200
@@ -34,7 +34,15 @@
    PA-RISC.  This is no longer true, but this still seems like the
    nicest way to implement this. */
 
-#define current_text_addr() ({ void *pc; __asm__("\n\tblr 0,%0\n\tnop":"=r" (pc)); pc; })
+#define current_text_addr()	({			\
+	void *pc;					\
+	__asm__ ("\n"					\
+	"	blr		0, %0\n"		\
+	"	nop"					\
+		:"=r" (pc)				\
+	);						\
+	pc;						\
+})
 
 #define TASK_SIZE               (current->thread.task_size)
 #define TASK_UNMAPPED_BASE      (current->thread.map_base)
@@ -348,12 +356,20 @@
 
 extern inline void prefetch(const void *addr)
 {
-	__asm__("ldw 0(%0), %%r0" : : "r" (addr));
+	__asm__ ("\n"
+	"	ldw		0(%0), %%r0"
+		:
+		: "r" (addr)
+	);
 }
 
 extern inline void prefetchw(const void *addr)
 {
-	__asm__("ldd 0(%0), %%r0" : : "r" (addr));
+	__asm__ ("\n"
+	"	ldd		0(%0), %%r0"
+		:
+		: "r" (addr)
+	);
 }
 #endif
 
--- ./include/asm-parisc/uaccess.h.Orig	2006-04-10 16:05:32.000000000 +0200
+++ ./include/asm-parisc/uaccess.h	2006-04-10 18:28:14.000000000 +0200
@@ -76,97 +76,122 @@
 	unsigned long fault_addr;
 };
 
-#define __get_user(x,ptr)                               \
-({                                                      \
-	register long __gu_err __asm__ ("r8") = 0;      \
-	register long __gu_val __asm__ ("r9") = 0;      \
-							\
-	if (segment_eq(get_fs(),KERNEL_DS)) {           \
-	    switch (sizeof(*(ptr))) {                   \
-	    case 1: __get_kernel_asm("ldb",ptr); break; \
-	    case 2: __get_kernel_asm("ldh",ptr); break; \
-	    case 4: __get_kernel_asm("ldw",ptr); break; \
-	    case 8: LDD_KERNEL(ptr); break;		\
-	    default: __get_kernel_bad(); break;         \
-	    }                                           \
-	}                                               \
-	else {                                          \
-	    switch (sizeof(*(ptr))) {                   \
-	    case 1: __get_user_asm("ldb",ptr); break;   \
-	    case 2: __get_user_asm("ldh",ptr); break;   \
-	    case 4: __get_user_asm("ldw",ptr); break;   \
-	    case 8: LDD_USER(ptr);  break;		\
-	    default: __get_user_bad(); break;           \
-	    }                                           \
-	}                                               \
-							\
-	(x) = (__typeof__(*(ptr))) __gu_val;            \
-	__gu_err;                                       \
+#define __get_user(x, ptr)	({				\
+								\
+	register long __gu_err __asm__ ("r8") = 0;		\
+	register long __gu_val __asm__ ("r9") = 0;		\
+								\
+	if (segment_eq(get_fs(), KERNEL_DS)) {			\
+		switch (sizeof(*(ptr))) {			\
+			case 1: __get_kernel_asm("ldb", ptr);	\
+				break;				\
+			case 2: __get_kernel_asm("ldh", ptr);	\
+				break;				\
+			case 4: __get_kernel_asm("ldw", ptr);	\
+				break;				\
+			case 8: LDD_KERNEL(ptr);		\
+				break;				\
+			default: __get_kernel_bad();		\
+				break;				\
+		}						\
+	} else {						\
+		switch (sizeof(*(ptr))) {			\
+			case 1: __get_user_asm("ldb", ptr);	\
+				break;				\
+			case 2: __get_user_asm("ldh", ptr);	\
+				break;				\
+			case 4: __get_user_asm("ldw", ptr);	\
+				break;				\
+			case 8: LDD_USER(ptr);			\
+				break;				\
+			default: __get_user_bad();		\
+				break;				\
+		}						\
+	}							\
+								\
+	(x) = (__typeof__(*(ptr))) __gu_val;			\
+	__gu_err;						\
 })
 
 #ifdef __LP64__
-#define __get_kernel_asm(ldx,ptr)                       \
-	__asm__("\n1:\t" ldx "\t0(%2),%0\n"             \
-		"\t.section __ex_table,\"aw\"\n"        \
-		"\t.dword\t1b,fixup_get_user_skip_1\n"	\
-		"\t.previous"                          	\
-		: "=r"(__gu_val), "=r"(__gu_err)        \
+#define __get_kernel_asm(ldx, ptr)			\
+	__asm__ ("\n"					\
+	"1:	" ldx "		0(%2), %0\n"		\
+	"	.section __ex_table,\"aw\"\n"		\
+	"	.dword	1b, fixup_get_user_skip_1\n"	\
+	"	.previous"				\
+		: "=r"(__gu_val), "=r"(__gu_err)	\
 		: "r"(ptr), "1"(__gu_err)		\
-		: "r1");
+		: "r1"					\
+	)
 
-#define __get_user_asm(ldx,ptr)                         \
-	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
-		"\t.section __ex_table,\"aw\"\n"	\
-		"\t.dword\t1b,fixup_get_user_skip_1\n"	\
-		"\t.previous"				\
-		: "=r"(__gu_val), "=r"(__gu_err)        \
+#define __get_user_asm(ldx, ptr)			\
+	__asm__ ("\n"					\
+	"1:	" ldx "		0(%%sr3, %2), %0\n"	\
+	"	.section __ex_table,\"aw\"\n"		\
+	"	.dword	1b, fixup_get_user_skip_1\n"	\
+	"	.previous"				\
+		: "=r"(__gu_val), "=r"(__gu_err)	\
 		: "r"(ptr), "1"(__gu_err)		\
-		: "r1");
+		: "r1"					\
+	)
 #else
-#define __get_kernel_asm(ldx,ptr)                       \
-	__asm__("\n1:\t" ldx "\t0(%2),%0\n"             \
-		"\t.section __ex_table,\"aw\"\n"        \
-		"\t.word\t1b,fixup_get_user_skip_1\n"	\
-		"\t.previous"                          	\
-		: "=r"(__gu_val), "=r"(__gu_err)        \
+#define __get_kernel_asm(ldx, ptr)			\
+	__asm__ ("\n"					\
+	"1:	" ldx "		0(%2), %0\n"		\
+	"	.section __ex_table,\"aw\"\n"		\
+	"	.word	1b, fixup_get_user_skip_1\n"	\
+	"	.previous"				\
+		: "=r"(__gu_val), "=r"(__gu_err)	\
 		: "r"(ptr), "1"(__gu_err)		\
-		: "r1");
+		: "r1"					\
+	)
 
-#define __get_user_asm(ldx,ptr)                         \
-	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
-		"\t.section __ex_table,\"aw\"\n"	\
-		 "\t.word\t1b,fixup_get_user_skip_1\n"	\
-		 "\t.previous"                          \
-		: "=r"(__gu_val), "=r"(__gu_err)        \
+#define __get_user_asm(ldx, ptr)			\
+	__asm__ ("\n"					\
+	"1:	" ldx "		0(%%sr3, %2), %0\n"	\
+	"	.section __ex_table,\"aw\"\n"		\
+	"	.word	1b, fixup_get_user_skip_1\n"	\
+	"	.previous"				\
+		: "=r"(__gu_val), "=r"(__gu_err)	\
 		: "r"(ptr), "1"(__gu_err)		\
-		: "r1");
+		: "r1"					\
+	)
 #endif /* !__LP64__ */
 
-#define __put_user(x,ptr)                                       \
-({								\
-	register long __pu_err __asm__ ("r8") = 0;      	\
-        __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x);	\
-								\
-	if (segment_eq(get_fs(),KERNEL_DS)) {                   \
-	    switch (sizeof(*(ptr))) {                           \
-	    case 1: __put_kernel_asm("stb",__x,ptr); break;     \
-	    case 2: __put_kernel_asm("sth",__x,ptr); break;     \
-	    case 4: __put_kernel_asm("stw",__x,ptr); break;     \
-	    case 8: STD_KERNEL(__x,ptr); break;			\
-	    default: __put_kernel_bad(); break;			\
-	    }                                                   \
-	}                                                       \
-	else {                                                  \
-	    switch (sizeof(*(ptr))) {                           \
-	    case 1: __put_user_asm("stb",__x,ptr); break;       \
-	    case 2: __put_user_asm("sth",__x,ptr); break;       \
-	    case 4: __put_user_asm("stw",__x,ptr); break;       \
-	    case 8: STD_USER(__x,ptr); break;			\
-	    default: __put_user_bad(); break;			\
-	    }                                                   \
-	}                                                       \
-								\
-	__pu_err;						\
+#define __put_user(x, ptr)	({					\
+									\
+	register long __pu_err __asm__ ("r8") = 0;			\
+        __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x);		\
+									\
+	if (segment_eq(get_fs(),KERNEL_DS)) {				\
+		switch (sizeof(*(ptr))) {				\
+			case 1: __put_kernel_asm("stb", __x, ptr);	\
+				break;					\
+			case 2: __put_kernel_asm("sth", __x, ptr);	\
+				break;					\
+			case 4: __put_kernel_asm("stw", __x, ptr);	\
+				break;					\
+			case 8: STD_KERNEL(__x, ptr);			\
+				break;					\
+			default: __put_kernel_bad();			\
+				break;					\
+		}							\
+	} else {							\
+		switch (sizeof(*(ptr))) {				\
+			case 1: __put_user_asm("stb", __x, ptr);	\
+				break;					\
+			case 2: __put_user_asm("sth", __x, ptr);	\
+				break;					\
+			case 4: __put_user_asm("stw", __x, ptr);	\
+				break;					\
+			case 8: STD_USER(__x, ptr);			\
+				break;					\
+			default: __put_user_bad();			\
+				break;					\
+		}							\
+	}								\
+	__pu_err;							\
 })
 
 /*
@@ -176,75 +201,82 @@
  */
 
 #ifdef __LP64__
-#define __put_kernel_asm(stx,x,ptr)                         \
-	__asm__ __volatile__ (                              \
-		"\n1:\t" stx "\t%2,0(%1)\n"                 \
-		"\t.section __ex_table,\"aw\"\n"            \
-		"\t.dword\t1b,fixup_put_user_skip_1\n"	    \
-		"\t.previous"                               \
-		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err))
-
-#define __put_user_asm(stx,x,ptr)                           \
-	__asm__ __volatile__ (                              \
-		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
-		"\t.section __ex_table,\"aw\"\n"            \
-		 "\t.dword\t1b,fixup_put_user_skip_1\n"	    \
-		 "\t.previous"                              \
-		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
-		: "r1")
+#define __put_kernel_asm(stx, x, ptr)			\
+	__asm__ __volatile__ ("\n"			\
+	"1:	" stx "		%2, 0(%1)\n"		\
+	"	.section __ex_table,\"aw\"\n"		\
+	"	.dword	1b, fixup_put_user_skip_1\n"	\
+	"	.previous"				\
+		: "=r"(__pu_err)			\
+		: "r"(ptr), "r"(x), "0"(__pu_err)	\
+		: "r1"					\
+	)
+
+#define __put_user_asm(stx, x, ptr)			\
+	__asm__ __volatile__ ("\n"			\
+	"1:	" stx "		%2, 0(%%sr3, %1)\n"	\
+	"	.section __ex_table,\"aw\"\n"		\
+	"	.dword	1b, fixup_put_user_skip_1\n"    \
+	"	.previous"				\
+		: "=r"(__pu_err)			\
+		: "r"(ptr), "r"(x), "0"(__pu_err)	\
+		: "r1"					\
+	)
 #else
-#define __put_kernel_asm(stx,x,ptr)                         \
-	__asm__ __volatile__ (                              \
-		"\n1:\t" stx "\t%2,0(%1)\n"                 \
-		"\t.section __ex_table,\"aw\"\n"            \
-		 "\t.word\t1b,fixup_put_user_skip_1\n"	    \
-		 "\t.previous"                              \
-		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
-		: "r1")
-
-#define __put_user_asm(stx,x,ptr)                           \
-	__asm__ __volatile__ (                              \
-		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
-		"\t.section __ex_table,\"aw\"\n"            \
-		 "\t.word\t1b,fixup_put_user_skip_1\n"      \
-		 "\t.previous"                              \
-		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
-		: "r1")
-
-#define __put_kernel_asm64(__val,ptr) do {		    	    \
-	u64 __val64 = (u64)(__val);				    \
-	u32 hi = (__val64) >> 32;					    \
-	u32 lo = (__val64) & 0xffffffff;				    \
-	__asm__ __volatile__ (				    \
-		"\n1:\tstw %2,0(%1)\n"			    \
-		"\n2:\tstw %3,4(%1)\n"			    \
-		"\t.section __ex_table,\"aw\"\n"	    \
-		 "\t.word\t1b,fixup_put_user_skip_2\n"	    \
-		 "\t.word\t2b,fixup_put_user_skip_1\n"	    \
-		 "\t.previous"				    \
-		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
-		: "r1");				    \
+#define __put_kernel_asm(stx, x, ptr)			\
+	__asm__ __volatile__ ("\n"			\
+	"1:	" stx "		%2, 0(%1)\n"		\
+	"	.section __ex_table,\"aw\"\n"		\
+	"	.word	1b, fixup_put_user_skip_1\n"	\
+	"	.previous"				\
+		: "=r"(__pu_err)			\
+		: "r"(ptr), "r"(x), "0"(__pu_err)	\
+		: "r1"					\
+	)
+
+#define __put_user_asm(stx, x, ptr)			\
+	__asm__ __volatile__ ("\n"			\
+	"1:	" stx "		%2, 0(%%sr3, %1)\n"	\
+	"	.section __ex_table,\"aw\"\n"		\
+	"	.word	1b, fixup_put_user_skip_1\n"	\
+	"	.previous"				\
+		: "=r"(__pu_err)			\
+		: "r"(ptr), "r"(x), "0"(__pu_err)	\
+		: "r1"					\
+	)
+
+#define __put_kernel_asm64(__val, ptr) do {			\
+	u64 __val64 = (u64)(__val);				\
+	u32 hi = (__val64) >> 32;				\
+	u32 lo = (__val64) & 0xffffffff;			\
+	__asm__ __volatile__ ("\n"				\
+	"1:	stw		%2, 0(%1)\n"			\
+	"2:	stw		%3, 4(%1)\n"			\
+	"	.section __ex_table,\"aw\"\n"			\
+	"	.word	1b, fixup_put_user_skip_2\n"		\
+	"	.word	2b, fixup_put_user_skip_1\n"		\
+	"	.previous"					\
+		: "=r"(__pu_err)				\
+		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err)	\
+		: "r1"						\
+	);							\
 } while (0)
 
-#define __put_user_asm64(__val,ptr) do {		    	    \
-	u64 __val64 = (u64)__val;				    \
-	u32 hi = (__val64) >> 32;					    \
-	u32 lo = (__val64) & 0xffffffff;				    \
-	__asm__ __volatile__ (				    \
-		"\n1:\tstw %2,0(%%sr3,%1)\n"		    \
-		"\n2:\tstw %3,4(%%sr3,%1)\n"		    \
-		"\t.section __ex_table,\"aw\"\n"	    \
-		 "\t.word\t1b,fixup_get_user_skip_2\n"	    \
-		 "\t.word\t2b,fixup_get_user_skip_1\n"	    \
-		 "\t.previous"				    \
-		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
-		: "r1");				    \
+#define __put_user_asm64(__val, ptr) do {			\
+	u64 __val64 = (u64)__val;				\
+	u32 hi = (__val64) >> 32;				\
+	u32 lo = (__val64) & 0xffffffff;			\
+	__asm__ __volatile__ ("\n"				\
+	"1:	stw		%2, 0(%%sr3, %1)\n"		\
+	"2:	stw		%3, 4(%%sr3, %1)\n"		\
+	"	.section __ex_table,\"aw\"\n"			\
+	"	.word	1b, fixup_get_user_skip_2\n"		\
+	"	.word	2b, fixup_get_user_skip_1\n"		\
+	"	.previous"					\
+		: "=r"(__pu_err)				\
+		: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err)	\
+		: "r1"						\
+	);							\
 } while (0)
 
 #endif /* !__LP64__ */
@@ -256,7 +288,8 @@
 
 extern unsigned long lcopy_to_user(void __user *, const void *, unsigned long);
 extern unsigned long lcopy_from_user(void *, const void __user *, unsigned long);
-extern unsigned long lcopy_in_user(void __user *, const void __user *, unsigned long);
+extern unsigned long lcopy_in_user(void __user *, const void __user *,
+					unsigned long);
 extern long lstrncpy_from_user(char *, const char __user *, long);
 extern unsigned lclear_user(void __user *,unsigned long);
 extern long lstrnlen_user(const char __user *,long);
@@ -265,19 +298,24 @@
  * Complex access routines -- macros
  */
 
-#define strncpy_from_user lstrncpy_from_user
-#define strnlen_user lstrnlen_user
-#define strlen_user(str) lstrnlen_user(str, 0x7fffffffL)
-#define clear_user lclear_user
-#define __clear_user lclear_user
-
-unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len);
-#define __copy_to_user copy_to_user
-unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len);
-#define __copy_from_user copy_from_user
-unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len);
-#define __copy_in_user copy_in_user
-#define __copy_to_user_inatomic __copy_to_user
-#define __copy_from_user_inatomic __copy_from_user
+#define strncpy_from_user	lstrncpy_from_user
+#define strnlen_user		lstrnlen_user
+#define strlen_user(str)	lstrnlen_user(str, 0x7fffffffL)
+#define clear_user		lclear_user
+#define __clear_user		lclear_user
+
+unsigned long copy_to_user(void __user *dst, const void *src,
+				unsigned long len);
+#define __copy_to_user	copy_to_user
+
+unsigned long copy_from_user(void *dst, const void __user *src,
+				unsigned long len);
+#define __copy_from_user 	copy_from_user
+
+unsigned long copy_in_user(void __user *dst, const void __user *src,
+				unsigned long len);
+#define __copy_in_user			copy_in_user
+#define __copy_to_user_inatomic		__copy_to_user
+#define __copy_from_user_inatomic	__copy_from_user
 
 #endif /* __PARISC_UACCESS_H */
--- ./include/asm-parisc/unistd.h.Orig	2006-04-10 18:29:13.000000000 +0200
+++ ./include/asm-parisc/unistd.h	2006-04-10 18:43:57.000000000 +0200
@@ -805,12 +805,12 @@
 
 #ifdef PIC
 /* WARNING: CANNOT BE USED IN A NOP! */
-# define K_STW_ASM_PIC	"       copy %%r19, %%r4\n"
-# define K_LDW_ASM_PIC	"       copy %%r4, %%r19\n"
+# define K_STW_ASM_PIC	"	copy %%r19, %%r4\n"
+# define K_LDW_ASM_PIC	"	copy %%r4, %%r19\n"
 # define K_USING_GR4	"%r4",
 #else
-# define K_STW_ASM_PIC	" \n"
-# define K_LDW_ASM_PIC	" \n"
+# define K_STW_ASM_PIC	"\n"
+# define K_LDW_ASM_PIC	"\n"
 # define K_USING_GR4
 #endif
 
@@ -835,43 +835,43 @@
 		register unsigned long __res __asm__("r28");		\
 		K_LOAD_ARGS_##nr(args)					\
 		/* FIXME: HACK stw/ldw r19 around syscall */		\
-		__asm__ volatile(					\
+		__asm__ __volatile__ ("\n"				\
 			K_STW_ASM_PIC					\
-			"	ble  0x100(%%sr2, %%r0)\n"		\
-			"	ldi %1, %%r20\n"			\
+		"	ble		0x100(%%sr2, %%r0)\n"		\
+		"	ldi		%1, %%r20\n"			\
 			K_LDW_ASM_PIC					\
 			: "=r" (__res)					\
-			: "i" (SYS_ify(name)) K_ASM_ARGS_##nr   	\
+			: "i" (SYS_ify(name)) K_ASM_ARGS_##nr		\
 			: "memory", K_CALL_CLOB_REGS K_CLOB_ARGS_##nr	\
 		);							\
 		__sys_res = (long)__res;				\
 	}								\
-	if ( (unsigned long)__sys_res >= (unsigned long)-4095 ){	\
-		errno = -__sys_res;		        		\
+	if ( (unsigned long)__sys_res >= (unsigned long)-4095 ) {	\
+		errno = -__sys_res;					\
 		__sys_res = -1;						\
 	}								\
 	__sys_res;							\
 })
 
 #define K_LOAD_ARGS_0()
-#define K_LOAD_ARGS_1(r26)					\
-	register unsigned long __r26 __asm__("r26") = (unsigned long)(r26);   \
+#define K_LOAD_ARGS_1(r26)							\
+	register unsigned long __r26 __asm__("r26") = (unsigned long)(r26);	\
 	K_LOAD_ARGS_0()
-#define K_LOAD_ARGS_2(r26,r25)					\
-	register unsigned long __r25 __asm__("r25") = (unsigned long)(r25);   \
+#define K_LOAD_ARGS_2(r26, r25)							\
+	register unsigned long __r25 __asm__("r25") = (unsigned long)(r25);	\
 	K_LOAD_ARGS_1(r26)
-#define K_LOAD_ARGS_3(r26,r25,r24)				\
-	register unsigned long __r24 __asm__("r24") = (unsigned long)(r24);   \
-	K_LOAD_ARGS_2(r26,r25)
-#define K_LOAD_ARGS_4(r26,r25,r24,r23)				\
-	register unsigned long __r23 __asm__("r23") = (unsigned long)(r23);   \
-	K_LOAD_ARGS_3(r26,r25,r24)
-#define K_LOAD_ARGS_5(r26,r25,r24,r23,r22)			\
-	register unsigned long __r22 __asm__("r22") = (unsigned long)(r22);   \
-	K_LOAD_ARGS_4(r26,r25,r24,r23)
-#define K_LOAD_ARGS_6(r26,r25,r24,r23,r22,r21)			\
-	register unsigned long __r21 __asm__("r21") = (unsigned long)(r21);   \
-	K_LOAD_ARGS_5(r26,r25,r24,r23,r22)
+#define K_LOAD_ARGS_3(r26, r25, r24)						\
+	register unsigned long __r24 __asm__("r24") = (unsigned long)(r24);	\
+	K_LOAD_ARGS_2(r26, r25)
+#define K_LOAD_ARGS_4(r26, r25, r24, r23)					\
+	register unsigned long __r23 __asm__("r23") = (unsigned long)(r23);	\
+	K_LOAD_ARGS_3(r26, r25, r24)
+#define K_LOAD_ARGS_5(r26, r25, r24, r23, r22)					\
+	register unsigned long __r22 __asm__("r22") = (unsigned long)(r22);	\
+	K_LOAD_ARGS_4(r26, r25, r24, r23)
+#define K_LOAD_ARGS_6(r26, r25, r24, r23, r22, r21)				\
+	register unsigned long __r21 __asm__("r21") = (unsigned long)(r21);	\
+	K_LOAD_ARGS_5(r26, r25, r24, r23, r22)
 
 /* Even with zero args we use r20 for the syscall number */
 #define K_ASM_ARGS_0

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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes) and more
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John David Anglin wrote:
>>>I'm running libc6-2.3.6-4 and see some strange crashes. Might it be related, or does  2.3.6-4 doesn't includes your fix ?
> 
> 
> 2.3.6-4 should have the glibc fix...
> 
> 
>>Do you know in which gcc-4.0 dpkg release the jda patch 
>>(<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-March/028548.html>) was in?
>>I can so check in buildd with which compiler this new glibc-2.3.6-4 was build ;-)
> 
> 
> As far as GCC goes, the fix is now in all 4.x branches but not in 3.4.
> I'm not sure about the debian status.  I believe that Matthias integrated
> the change but there was a regression due to a missing glibc patch
> needed to prevent a SIGSEGV in the unwind code.  Matthias said this
> problem was fixed on March 20.
Sorry for delay but I come back to you with this stuff because I finaly take some time today to make some free space to check:
	* this patch is included into gcc-snapshot dpkg (namely ref to 2006 03 25 ;-) )
	* but neither gcc-4.0 nor gcc-4.1 dpkg contained this patch ;-(
	  (should I ask to Matthias, aka doko, lol?)

Thanks,
	Joel



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From: Jeff Bailey <jbailey@raspberryginger.com>
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Subject: [parisc-linux] ELF ABI Documents
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I'm on a bit of a quest for accurate documentation.

This started when I was starting to hack klibc and had to go digging for
a bunch of information in a pile of different documents.  What I'd like
to do is write the LSB document for parisc so that there's a single
accurate place to refer to for calling conventions / syscall
information, etc.

It's most common in the LSB specs to refer to the ELF psabi document
where possible.  http://refspecs.freestandards.org/elf/elf-pa.pdf seems
to be a copy of the psabi document, but when checking with some folks,
it looks like the document isn't a reflection on reality for
parisc-linux.  The question is, should the document be updated to
reflect reality, should we slowly change to match the document, or
should I just not refer to the psabi document much when writing the LSB
document?

Tks,
Jeff Bailey

--=20
Although when you're in the situation that RMS is telling you that
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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] ELF ABI Documents
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> It's most common in the LSB specs to refer to the ELF psabi document
> where possible.  http://refspecs.freestandards.org/elf/elf-pa.pdf seems
> to be a copy of the psabi document, but when checking with some folks,
> it looks like the document isn't a reflection on reality for
> parisc-linux.  The question is, should the document be updated to
> reflect reality, should we slowly change to match the document, or
> should I just not refer to the psabi document much when writing the LSB
> document?

First of all, I want to say that such a document would be wonderful to have!

I think the ELF-PA document corresponds mostly with what we do on
parisc-linux. There are some things we don't implement (e.g. I don't
think we have PCREL14WR/PCREL14DR), and we have made some enhancements
in other areas (e.g. TLS relocations). The only thing that I know of
where we don't follow the spec is how we handle SEGREL32 - we don't use
a SEGBASE relocation to set the segment base, but rely on other
information from the ELF headers.

I don't think the ELF spec talks about calling conventions and syscall
conventions though. For that, parisc-linux mostly follows the SOM spec
for calling conventions
(http://ftp.parisc-linux.org/docs/arch/pa-runtime-32-SOM.pdf)

A document about hppa ABI will not be complete without some discussion
about the hppa unwinding mechanism too.

my 2 cents :)
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Le mardi 18 avril 2006 =C3=A0 11:00 +0800, Randolph Chung a =C3=A9crit :

> I don't think the ELF spec talks about calling conventions and syscall
> conventions though. For that, parisc-linux mostly follows the SOM spec
> for calling conventions
> (http://ftp.parisc-linux.org/docs/arch/pa-runtime-32-SOM.pdf)

Right.  This is where the LSB document comes it.  It does wind up
defining those for Linux at least.  The "Mostly follows SOM" is largely
what's inspired me on this quest.  I'd love to see a definitive document
that defines this and am willing to go through the effort to do it.

Tks,
Jeff Bailey

--=20
Although when you're in the situation that RMS is telling you that
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> > I don't think the ELF spec talks about calling conventions and syscall
> > conventions though. For that, parisc-linux mostly follows the SOM spec
> > for calling conventions
> > (http://ftp.parisc-linux.org/docs/arch/pa-runtime-32-SOM.pdf)
> 
> Right.  This is where the LSB document comes it.  It does wind up
> defining those for Linux at least.  The "Mostly follows SOM" is largely
> what's inspired me on this quest.  I'd love to see a definitive document
> that defines this and am willing to go through the effort to do it.

I think what is needed is a SYSV PS ABI for PA-RISC.  It probably shouldn't
be an LSB document.  Typically, the LSB only adopts a subset of any
particular specification, and in the case of the PS ABIs, references
the documents for the various processors currently specified by the
LSB.  The IA64 document is probably the closest to what's needed for
PA-RISC although it can be simplified.  It was written jointly by HP
and Intel.

It probably would be best to obtain the support of HP in doing this.
One of the criticisms of the LSB is that it simply documents what is
and in large measure it just refers to other specifications.
Whereas, specifications such as POSIX have been written by people
aware of the subtle tradeoffs between different implementations
and they try to actually specify an implementation.  If it's
possible to obtain full community support, it's more likely that the
document would be useful and a guide to implementors.  However,
just documenting what is would be useful.

The PA-RISC ABI isn't completely static.  For example, I changed the
passing of complex values in GCC 4.1 so that they are now treated in
the same manner as aggregates.  I think it's also fair to say that
the TLS implementation is far from finalized.

As noted, the HP ELF documents aren't completely up to date and
they don't fully match the current headers provided with HP-UX.
For example, there are now note sections for PA-RISC.  It would be
useful if these documents could be updated as well but this would
require permission from HP because of the copyright issues.

The HP ELF implementation differs in some significant ways from
that in linux.  Areas that come immediately to mind are weak symbol
support, program startup, TLS implementation, memory model, debug
support, etc.

>>From my perspective, a well written PS ABI for PA-RISC would certainly
be useful.  I suspect HP dropped work in this area because of its
decision to phase out PA-RISC.  This is certainly a challenging
project but maybe once the scope is defined the rest will follow.
If you work fast, you might beat implementation of a 64-bit PA-RISC
runtime for linux!

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] gcc instrument-function on parisc?
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Hello Dave,

I tried to use this example of gcc instrumentation:
<http://www-128.ibm.com/developerworks/linux/library/l-graphvis/?ca=3Ddgr=
-lnxw18Graphviz>

I try to rebuild its trivial test.c as mentioned:
test.c
::::::::::::::
#include <stdio.h>

int main()
{
        printf("Hello World\n");
        return 0;
}

# gcc -g -finstrument-functions test.c instrument.c -o test

# more trace.txt
E0x20e3e
X0x20e3e

but this is not the main() address (gdb shows 0x1067c).

OTOH I find this comment in gcc-4.0 info:
`-finstrument-functions'
     Generate instrumentation calls for entry and exit to functions.
     Just after function entry and just before function exit, the
     following profiling functions will be called with the address of
     the current function and its call site.  (On some platforms,
     `__builtin_return_address' does not work beyond the current
     function, so the call site information may not be available to the
     profiling functions otherwise.)

Is 'some platform' include parisc?

TIA for advise,
    Joel



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Xref: news.gmane.org gmane.linux.ports.parisc:23584

> OTOH I find this comment in gcc-4.0 info:
> `-finstrument-functions'
>      Generate instrumentation calls for entry and exit to functions.
>      Just after function entry and just before function exit, the
>      following profiling functions will be called with the address of
>      the current function and its call site.  (On some platforms,
>      `__builtin_return_address' does not work beyond the current
>      function, so the call site information may not be available to the
>      profiling functions otherwise.)
> 
> Is 'some platform' include parisc?

Yes, `__builtin_return_address' only provides the return address
for the current function on PA-RISC (on some targets, it can unwind
multiple levels).  There's some question in my mind as to whether it
handles all stubs correctly.  If it detects a stub, it tries to
provide the return address for the stub.  It's guaranteed not to
work in a signal handler.

The above hasn't really been tested as far as I know on parisc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:23585

On 4/18/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> I think what is needed is a SYSV PS ABI for PA-RISC.  It probably shouldn=
't
> be an LSB document.  Typically, the LSB only adopts a subset of any
> particular specification, and in the case of the PS ABIs, references
> the documents for the various processors currently specified by the
> LSB.  The IA64 document is probably the closest to what's needed for
> PA-RISC although it can be simplified.  It was written jointly by HP
> and Intel.

The SYSV psABI for HP PA-RISC is going to be a very messy thing to start wi=
th.
I whole heartedly recommend that Jeff begin work by writing the ELF
psABI for hppa and perhaps after that moving towards the SYSV psABI.
The LSB documentation will then be a reference to the SYSV psABI and
the ELF psABI documents.

So Jeff, care to whip up a document that is a copy of the elf-pa.pdf and
we can start commenting on what's wrong with the document?

What document format are you going to use? I recommend openoffice or tex.

List of the relocs we handle:
binutils/include/elf/hppa.h
  This file lists our relocs and their values. With comments about
their processing.
binutils/bfd/elf-hppa.h
  This file contains the relocs howto showing if some are unimplemented.
  (elf_hppa_final_write_processing): Contains flag settings for the elf hea=
der.

Cheers,
Carlos.
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Subject: Re: [parisc-linux] Does it lakes some cloberred r1 in
	__put_kernel_asm() 64bit?
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On 4/16/06, Joel Soete <soete.joel@tiscali.be> wrote:
> Hello all,
>
> I tried to apply my 'beautify' asm template to some uaccess.h and figure =
out that
> this hunk din't mentioned that "r1" was cloberred (iirc in fixup text) wh=
ile
> the 32bit one did:
>
> mmm, doesn't seems to change anything (I just check sys_parisc32.s) but m=
ay be elsewhere?

Please put on your thinking cap.

a) What does a clobber mean from the viewpoint of an __asm?
b) Which insn clobber r1?

Research both and return with the answer.
Double marks if you solve...

c) Should any of the __put_kernel_asm's have r1 listed as a clobber?

Cheers,
Carlos.
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Xref: news.gmane.org gmane.linux.ports.parisc:23587

> > OTOH I find this comment in gcc-4.0 info:
> > `-finstrument-functions'
> >      Generate instrumentation calls for entry and exit to functions.
> >      Just after function entry and just before function exit, the
> >      following profiling functions will be called with the address of=

> >      the current function and its call site.  (On some platforms,
> >      `__builtin_return_address' does not work beyond the current
> >      function, so the call site information may not be available to t=
he
> >      profiling functions otherwise.)
> > 
> > Is 'some platform' include parisc?
> 
> Yes, `__builtin_return_address' only provides the return address
> for the current function on PA-RISC (on some targets, it can unwind
> multiple levels).  There's some question in my mind as to whether it
> handles all stubs correctly.  If it detects a stub, it tries to
> provide the return address for the stub.  It's guaranteed not to
> work in a signal handler.
> 
Too bad ;-(

(is jbailey defintely right:
<http://cvs.parisc-linux.org/web/src/puffinfest/pariscfortunes.diff?cvsro=
ot=3D&r1=3D1.13&r2=3D1.14>
;-? )

> The above hasn't really been tested as far as I know on parisc.
> 
Well, that was just a test.
The idea was using relayfs builtin to create a space at early boot to wri=
te
some data from a code chunk (e.g. ccio-dma) instumented by gcc better the=
n do
it manually.

Any work-around idea?

Thanks again,
    Joel
=0A=0A----------=0AWordt ook lid van de Scarlet Club via een bestaande Sc=
arlet klant en ontvang cadeaucheques twv EUR 50! Bezoek snel http://www.s=
carletclub.be=0ADevenez aussi membre du Club Scarlet via un client Scarle=
t existant et recevez des cheques cadeaux jusqu'a EUR 50! Surfez vite sur=
 http://www.clubscarlet.be

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Subject: Re: [parisc-linux] Does it lakes some cloberred r1 in
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On Tue April 18 2006 15:35, Carlos O'Donell wrote:
> On 4/16/06, Joel Soete <soete.joel@tiscali.be> wrote:
> > Hello all,
> >
> > I tried to apply my 'beautify' asm template to some uaccess.h and figure out that
> > this hunk din't mentioned that "r1" was cloberred (iirc in fixup text) while
> > the 32bit one did:
> >
> > mmm, doesn't seems to change anything (I just check sys_parisc32.s) but may be elsewhere?
> 
> Please put on your thinking cap.
>
Please do not assume that was not step 1.

> 
> a) What does a clobber mean from the viewpoint of an __asm?
>
Why not from the syntax used?

Two possibilities:
1) Compiler can not distinguish the effects of assemble statements
on register usage.  It has to be told, as a general rule.

2) Compiler can distinguish the effects of assemble statements.
In this case, there is no reason for the clobber field.

Since there IS a clobber field in the syntax, then (2) must be
the intended assumption.

> b) Which insn clobber r1?
>
If (1) holds, it does not matter, the compiler already knows
when r1 will be trashed.

If (2) holds, the code author should know.
 
> Research both and return with the answer.
> Double marks if you solve...
> 
> c) Should any of the __put_kernel_asm's have r1 listed as a clobber?
> 
if (1) holds, it does not matter.

if (2) holds, then at least two more possibilities:

3) The compiler never carries a live value in r1 across an __asm block.
This is the same result as if r1 was listed as a clobber from the viewpoint
of preserving a value in r1 - there isn't one to preserve.

4) The compiler considers r1 a general purpose register.
In this case, the code author should not make an exception from the 
general rule implied by the supplied syntax of __asm blocks.

Q.E.D:
Safe coding practice over the lifetime of changing compiler versions
answers the question - r1 should appear in the clobber list of any
block that changes its value.

Either:
a) It makes no difference for some combinations of the above;
Or:
b) It is required.

> Cheers,
Your welcome,
Mike

> Carlos.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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> It's most common in the LSB specs to refer to the ELF psabi document
> where possible.  http://refspecs.freestandards.org/elf/elf-pa.pdf seems

The latest version is here:
http://ftp.parisc-linux.org/docs/arch/elf-pa-hp.pdf

HP and Intel also developed a generic specification for the ELF-64 object
file format, and a version containing HP and HP-UX extensions.

> to be a copy of the psabi document, but when checking with some folks,
> it looks like the document isn't a reflection on reality for
> parisc-linux.  The question is, should the document be updated to
> reflect reality, should we slowly change to match the document, or
> should I just not refer to the psabi document much when writing the LSB
> document?

None of the above mentioned documents appear to contain a copyright
notice.  However, this may no longer be an absolute requirement under
US copyright law.  In as much as a linux document is likely going to
have to utilize material from the above, it probably would be wise to
get the written approval from HP before proceeding.  It might also be
necessary to get Intel's approval if the document also attempts to
specify ELF for 64-bit linux.  Of course if you just reference these
specifications and point out differences, this problem can be avoided.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> There is also some communication between the LSB workgroup and the Austin 
> Group and they are both benefitting from the other's work.

I'm aware of this and the efforts to align POSIX and the LSB where
differences exist.  The majority of areas where differences exist
between POSIX and linux are resolved in current implementations.
Thus, it appears that the standards can be aligned in future updates
without too much difficulty.

FWIW, I personally believe that the development of the LSB was a
useful effort.  However, as you know, one of Austin Group participants
believes the LSB to be useless...   Time will tell.

> > If it's
> > possible to obtain full community support, it's more likely that the
> > document would be useful and a guide to implementors.  However,
> > just documenting what is would be useful.
> 
> Here, here! And don't worry about doing the work via the LSB, just produce the 
> standard and the LSB will adopt it when it makes sense.

It would be a significant achievement if production of these documents
allowed PA-RISC to become part of the LSB standard!  I think it fair to
say that almost all (all?) of the processor specific documents referenced
by the LSB were developed by commercial entities rather than the open source
community at large.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:23591

Reduces the amount of hand editing diffs I need to do...

Index: include/sound/opl3.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/sound/opl3.h,v
retrieving revision 1.6
diff -u -d -p -r1.6 opl3.h
--- include/sound/opl3.h	3 Apr 2006 13:46:08 -0000	1.6
+++ include/sound/opl3.h	20 Apr 2006 15:20:02 -0000
@@ -261,11 +261,10 @@ struct snd_opl3_voice {
 };
 
 struct snd_opl3 {
-	void __iomem *l_port;
-	void __iomem *r_port;
+	unsigned long l_port;
+	unsigned long r_port;
 	struct resource *res_l_port;
 	struct resource *res_r_port;
-	int unmap_on_free;
 	unsigned short hardware;
 	/* hardware access */
 	void (*command) (struct snd_opl3 * opl3, unsigned short cmd, unsigned char val);
@@ -326,9 +325,6 @@ int snd_opl3_create(struct snd_card *car
 		    unsigned short hardware,
 		    int integrated,
 		    struct snd_opl3 ** opl3);
-int snd_opl3_create_mapped(struct snd_card *card,
-			   void __iomem *l_port, void __iomem *r_port,
-			   unsigned short hardware, struct snd_opl3 **opl3);
 int snd_opl3_timer_new(struct snd_opl3 * opl3, int timer1_dev, int timer2_dev);
 int snd_opl3_hwdep_new(struct snd_opl3 * opl3, int device, int seq_device,
 		       struct snd_hwdep ** rhwdep);
Index: sound/drivers/opl3/opl3_lib.c
===================================================================
RCS file: /var/cvs/linux-2.6/sound/drivers/opl3/opl3_lib.c,v
retrieving revision 1.15
diff -u -d -p -r1.15 opl3_lib.c
--- sound/drivers/opl3/opl3_lib.c	3 Apr 2006 13:46:33 -0000	1.15
+++ sound/drivers/opl3/opl3_lib.c	20 Apr 2006 15:20:03 -0000
@@ -40,7 +40,7 @@ extern char snd_opl3_regmap[MAX_OPL2_VOI
 static void snd_opl2_command(struct snd_opl3 * opl3, unsigned short cmd, unsigned char val)
 {
 	unsigned long flags;
-	void __iomem *port;
+	unsigned long port;
 
 	/*
 	 * The original 2-OP synth requires a quite long delay
@@ -51,10 +51,10 @@ static void snd_opl2_command(struct snd_
 
 	spin_lock_irqsave(&opl3->reg_lock, flags);
 
-	iowrite8((unsigned char) cmd, port);
+	outb((unsigned char) cmd, port);
 	udelay(10);
 
-	iowrite8((unsigned char) val, port + 1);
+	outb((unsigned char) val, port + 1);
 	udelay(30);
 
 	spin_unlock_irqrestore(&opl3->reg_lock, flags);
@@ -63,7 +63,7 @@ static void snd_opl2_command(struct snd_
 static void snd_opl3_command(struct snd_opl3 * opl3, unsigned short cmd, unsigned char val)
 {
 	unsigned long flags;
-	void __iomem *port;
+	unsigned long port;
 
 	/*
 	 * The OPL-3 survives with just two INBs
@@ -74,13 +74,13 @@ static void snd_opl3_command(struct snd_
 
 	spin_lock_irqsave(&opl3->reg_lock, flags);
 
-	iowrite8((unsigned char) cmd, port);
-	ioread8(opl3->l_port);
-	ioread8(opl3->l_port);
+	outb((unsigned char) cmd, port);
+	inb(opl3->l_port);
+	inb(opl3->l_port);
 
-	iowrite8((unsigned char) val, port + 1);
-	ioread8(opl3->l_port);
-	ioread8(opl3->l_port);
+	outb((unsigned char) val, port + 1);
+	inb(opl3->l_port);
+	inb(opl3->l_port);
 
 	spin_unlock_irqrestore(&opl3->reg_lock, flags);
 }
@@ -104,7 +104,7 @@ static int snd_opl3_detect(struct snd_op
 	opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK);
 	/* Reset the IRQ of the FM chip */
 	opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_IRQ_RESET);
-	signature = stat1 = ioread8(opl3->l_port);	/* Status register */
+	signature = stat1 = inb(opl3->l_port);	/* Status register */
 	if ((stat1 & 0xe0) != 0x00) {	/* Should be 0x00 */
 		snd_printd("OPL3: stat1 = 0x%x\n", stat1);
 		return -ENODEV;
@@ -116,7 +116,7 @@ static int snd_opl3_detect(struct snd_op
 	/* Now we have to delay at least 80us */
 	udelay(200);
 	/* Read status after timers have expired */
-	stat2 = ioread8(opl3->l_port);
+	stat2 = inb(opl3->l_port);
 	/* Stop the timers */
 	opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK);
 	/* Reset the IRQ of the FM chip */
@@ -299,7 +299,7 @@ void snd_opl3_interrupt(struct snd_hwdep
 		return;
 
 	opl3 = hw->private_data;
-	status = ioread8(opl3->l_port);
+	status = inb(opl3->l_port);
 #if 0
 	snd_printk("AdLib IRQ status = 0x%x\n", status);
 #endif
@@ -327,10 +327,6 @@ static int snd_opl3_free(struct snd_opl3
 		opl3->private_free(opl3);
 	release_and_free_resource(opl3->res_l_port);
 	release_and_free_resource(opl3->res_r_port);
-	if (opl3->unmap_on_free) {
-		iounmap(opl3->l_port);
-		iounmap(opl3->r_port);
-	}
 	kfree(opl3);
 	return 0;
 }
@@ -397,14 +393,12 @@ int snd_opl3_init(struct snd_opl3 *opl3)
 	return 0;
 }
 
-static int snd_opl3_create_main(struct snd_card * card,
-				void __iomem *l_port,
-				void __iomem *r_port,
-				int unmap_on_free,
-				struct resource *res_l_port,
-				struct resource *res_r_port,
-				unsigned short hardware,
-				struct snd_opl3 **ropl3)
+int snd_opl3_create(struct snd_card *card,
+		    unsigned long l_port,
+		    unsigned long r_port,
+		    unsigned short hardware,
+		    int integrated,
+		    struct snd_opl3 ** ropl3)
 {
 	struct snd_opl3 *opl3;
 	int err;
@@ -412,11 +406,21 @@ static int snd_opl3_create_main(struct s
 	*ropl3 = NULL;
 	if ((err = snd_opl3_new(card, hardware, &opl3)) < 0)
 		return err;
+	if (! integrated) {
+		if ((opl3->res_l_port = request_region(l_port, 2, "OPL2/3 (left)")) == NULL) {
+			snd_printk(KERN_ERR "opl3: can't grab left port 0x%lx\n", l_port);
+			snd_device_free(card, opl3);
+			return -EBUSY;
+		}
+		if (r_port != 0 &&
+		    (opl3->res_r_port = request_region(r_port, 2, "OPL2/3 (right)")) == NULL) {
+			snd_printk(KERN_ERR "opl3: can't grab right port 0x%lx\n", r_port);
+			snd_device_free(card, opl3);
+			return -EBUSY;
+		}
+	}
 	opl3->l_port = l_port;
 	opl3->r_port = r_port;
-	opl3->unmap_on_free = unmap_on_free;
-	opl3->res_l_port = res_l_port;
-	opl3->res_r_port = res_r_port;
 
 	switch (opl3->hardware) {
 	/* some hardware doesn't support timers */
@@ -447,61 +451,6 @@ static int snd_opl3_create_main(struct s
 	return 0;
 }
 
-int snd_opl3_create_mapped(struct snd_card *card,
-			   void __iomem *l_port,
-			   void __iomem *r_port,
-			   unsigned short hardware,
-			   struct snd_opl3 **ropl3)
-{
-	return snd_opl3_create_main(card, l_port, r_port, 0, NULL, NULL, hardware, ropl3);
-}
-
-int snd_opl3_create(struct snd_card * card,
-		    unsigned long l_port,
-		    unsigned long r_port,
-		    unsigned short hardware,
-		    int integrated,
-		    struct snd_opl3 **ropl3) {
-	struct resource *res_l_port = NULL;
-	struct resource *res_r_port = NULL;
-	void __iomem *l_mapped = NULL;
-	void __iomem *r_mapped = NULL;
-	
-	if (!integrated) {
-		if ((res_l_port = request_region(l_port, 2, "OPL2/3 (left)")) == NULL) {
-			snd_printk(KERN_ERR "opl3: can't grab left port 0x%lx\n", l_port);
-			goto fail;
-		}
-		if (r_port != 0 &&
-		    (res_r_port = request_region(r_port, 2, "OPL2/3 (right)")) == NULL) {
-			snd_printk(KERN_ERR "opl3: can't grab right port 0x%lx\n", r_port);
-			goto fail;
-		}
-	}
-	
-	l_mapped = ioport_map(l_port, 2);
-	if (l_mapped == NULL) {
-		snd_printk(KERN_ERR "opl3: failed to map port 0x%lx\n", l_port);
-		goto fail;
-	}
-	r_mapped = ioport_map(r_port, 2);
-	if (r_mapped == NULL) {
-		snd_printk(KERN_ERR "opl3: failed to map port 0x%lx\n", r_port);
-		goto fail;
-	}
-	
-	return snd_opl3_create_main(card, l_mapped, r_mapped, 1, res_l_port, res_r_port, hardware, ropl3);
-
-fail:
-	release_and_free_resource(res_l_port);
-	release_and_free_resource(res_r_port);
-	if (l_mapped)
-		iounmap(l_mapped);
-	if (r_mapped)
-		iounmap(r_mapped);
-	return -EBUSY;
-}
-
 int snd_opl3_timer_new(struct snd_opl3 * opl3, int timer1_dev, int timer2_dev)
 {
 	int err;
@@ -581,7 +530,6 @@ EXPORT_SYMBOL(snd_opl3_interrupt);
 EXPORT_SYMBOL(snd_opl3_new);
 EXPORT_SYMBOL(snd_opl3_init);
 EXPORT_SYMBOL(snd_opl3_create);
-EXPORT_SYMBOL(snd_opl3_create_mapped);
 EXPORT_SYMBOL(snd_opl3_timer_new);
 EXPORT_SYMBOL(snd_opl3_hwdep_new);
 
Index: sound/pci/Kconfig
===================================================================
RCS file: /var/cvs/linux-2.6/sound/pci/Kconfig,v
retrieving revision 1.27
diff -u -d -p -r1.27 Kconfig
--- sound/pci/Kconfig	3 Apr 2006 13:46:39 -0000	1.27
+++ sound/pci/Kconfig	20 Apr 2006 15:20:03 -0000
@@ -15,14 +15,6 @@ config SND_AD1889
 	  To compile this as a module, choose M here: the module
 	  will be called snd-ad1889.
 
-config SND_AD1889_OPL3
-	bool "Analog Devices AD1889 OPL3 Support (Experimental)"
-	depends on SND_AD1889 && EXPERIMENTAL
-	select SND_OPL3_LIB
-	help
-	  Say Y here to include support for the OPL3-compatible interface
-	  provided on an Analog Devices AD1889.
-
 config SND_ALS300
         tristate "Avance Logic ALS300/ALS300+"
         depends on SND
Index: sound/pci/ad1889.c
===================================================================
RCS file: /var/cvs/linux-2.6/sound/pci/ad1889.c,v
retrieving revision 1.37
diff -u -d -p -r1.37 ad1889.c
--- sound/pci/ad1889.c	3 Apr 2006 13:46:39 -0000	1.37
+++ sound/pci/ad1889.c	20 Apr 2006 15:20:03 -0000
@@ -47,10 +47,6 @@
 #include <sound/initval.h>
 #include <sound/ac97_codec.h>
 
-#ifdef CONFIG_SND_AD1889_OPL3
-#include <sound/opl3.h>
-#endif
-
 #include <asm/io.h>
 
 #include "ad1889.h"
@@ -61,7 +57,6 @@
 MODULE_AUTHOR("Kyle McMartin <kyle@parisc-linux.org>, Thibaut Varene <t-bone@parisc-linux.org>");
 MODULE_DESCRIPTION("Analog Devices AD1889 ALSA sound driver");
 MODULE_LICENSE("GPL");
-MODULE_VERSION(AD1889_DRVVER);
 MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1889}}");
 
 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
@@ -101,14 +96,6 @@ struct snd_ad1889 {
 	unsigned long bar;
 	void __iomem *iobase;
 
-#ifdef CONFIG_SND_AD1889_OPL3
-	unsigned long opl3_bar;
-	void __iomem *opl3_iobase;
-
-	struct snd_opl3 *opl3;
-	struct snd_hwdep *opl3hwdep;
-#endif
-
 	struct snd_ac97 *ac97;
 	struct snd_ac97_bus *ac97_bus;
 	struct snd_pcm *pcm;
@@ -887,11 +874,6 @@ skip_hw:
 	if (chip->iobase)
 		iounmap(chip->iobase);
 
-#ifdef CONFIG_SND_AD1889_OPL3
-	if (chip->opl3_iobase)
-		iounmap(chip->opl3_iobase);
-#endif
-	
 	pci_release_regions(chip->pci);
 	pci_disable_device(chip->pci);
 
@@ -972,17 +954,6 @@ snd_ad1889_create(struct snd_card *card,
 
 	spin_lock_init(&chip->lock);	/* only now can we call ad1889_free */
 
-#ifdef CONFIG_SND_AD1889_OPL3
-	chip->opl3_bar = pci_resource_start(pci, 1);
-	chip->opl3_iobase = ioremap_nocache(chip->opl3_bar, 
-					   pci_resource_len(pci, 1));
-	if (chip->opl3_iobase == NULL) {
-		printk(KERN_ERR PFX "unable to reserve region.\n");
-		snd_ad1889_free(chip);
-		return -EBUSY;
-	}
-#endif
-
 	if (request_irq(pci->irq, snd_ad1889_interrupt,
 			SA_INTERRUPT|SA_SHIRQ, card->driver, (void*)chip)) {
 		printk(KERN_ERR PFX "cannot obtain IRQ %d\n", pci->irq);
@@ -1058,22 +1029,6 @@ snd_ad1889_probe(struct pci_dev *pci,
 	if (err < 0)
 		goto free_and_ret;
 	
-#ifdef CONFIG_SND_AD1889_OPL3
-	err = snd_opl3_create_mapped(card, chip->opl3_iobase,
-				     chip->opl3_iobase + 2, OPL3_HW_OPL3,
-				     &chip->opl3);
-	if (err) {
-		printk(KERN_ERR PFX "failed to create opl3\n");
-		goto free_and_ret;
-	}
-
-	err = snd_opl3_hwdep_new(chip->opl3, 0, 0, &chip->opl3hwdep);
-	if (err) {
-		printk(KERN_ERR PFX "failed to create opl3hwdep\n");
-		goto free_and_ret;
-	}
-#endif

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Xref: news.gmane.org gmane.linux.ports.parisc:23592

On 4/20/06, Joel Soete <soete.joel@tiscali.be> wrote:
> Please help me I hate this game:
>   - tel me why?
>   - no tel me why not?
>   - ...

This is all part of learning. We want to teach you to do some of the
research yourself before emailing to the list. When you send email you
should have some research done which contributes to the solution of
the problem. For example the research you have done below is exactly
what I would have expected from a serious hacker. This is an excellent
amount of research! Good work Joel.

> > a) What does a clobber mean from the viewpoint of an __asm?
>
> Sorry, I was the first to put this question:
> "btw I had another question: what's the meaning of 'clobber' in the sens =
of
> asm extension of gcc?

*I* know the answer. The question is intended for you to learn how to resea=
rch.
Google is a horrible research tool. I recommend going to the source. GCC ha=
s
great manuals.

a) Go to "http://gcc.gnu.org/"
b) Click on "Manual"
c) Click on "GCC 4.1.0 Manual"
d) Read sections 5.34 and 5.35 describing the behaviour of asm's.

Please read the manuals if you don't know the answer. It keeps others from
being frustrated. The manuals were written for a reason.

> > b) Which insn clobber r1?
> >
> Hey, may be am I be confused by the complexity if this stuff: fixup().

The following is not an answer to the question. Though it is a good
analysis of the problem.

[snip]

> My understanding of all those matter is: when an error occures while the =
store
> (here) insn, an interruption occures which in turn launch the
> fixup_put_user_skip_1()

A couple more questions for research :)

Q: Does the process of interruption clobber registers?
Q: Does fixup_put_user_skip_1() execute in the interruption, or after when
     returning the interrupted user process?

> imho, it would make sense that the fixup_*()'s author
> <http://cvs.parisc-linux.org/linux-2.6/include/asm-parisc/uaccess.h?r1=3D=
1.15&r2=3D1.16>
> put r1 in clobbered list "to tell the compiler the" gr1's value is modifi=
ed.

Don't trust other authors, Randolph might have made a mistake!

> > c) Should any of the __put_kernel_asm's have r1 listed as a clobber?
> imho, Yes (if there wasn't anoying fusy _probably_).

Haha! :)

> That said, according to the same logic, Mike make me also noticed that in=
 our
> unaligned.c we have e.g.:
> static int emulate_ldh(struct pt_regs *regs, int toreg)
> also shouldn't we also 'probably' put r1 in the clobbered register list.

Yes, if you can answer the questions above then you have a valid basis
for adding "r1" to the clober list.

Joel, I'm only trying to help, so stick with it, we're almost done the
problem analysis. After which there will be some *real* work to do to
fix our kernel :)

Cheers,
Carlos.
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> > (here) insn, an interruption occures which in turn launch the
> > fixup_put_user_skip_1()
> 
> A couple more questions for research :)
> 
> Q: Does the process of interruption clobber registers?

r8 and r9?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu April 20 2006 12:28, John David Anglin wrote:
> > > (here) insn, an interruption occures which in turn launch the
> > > fixup_put_user_skip_1()
> > 
> > A couple more questions for research :)
> > 
> > Q: Does the process of interruption clobber registers?
> 
Joel,

The machine should switch a small sub-set of the general
registers to an alternate set, called the 'shadow registers'
for the interruption routine to use.

I do not recall the exact list of which register numbers
those are.  Search for 'shadow registers' in the acd.pdf

I do not know if r1 is shadowed or not.

If the interrupt routine needs to use other registers,
then it must save/restore them in that routine.

Mike
> r8 and r9?
> 
> Dave
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"John David Anglin" writes...

> One of the criticisms of the LSB is that it simply documents what is
> and in large measure it just refers to other specifications.

1) The LSB is a trailing-edge standard, they don't "invent" standards, they 
just document the standards that are accepted and in use. The work coming up 
with new standards is being done elsewhere. (X.org and freedesktop.org for 
example)
2) Referring to other specs is a good thing, why reinvent the wheel?

> Whereas, specifications such as POSIX have been written by people
> aware of the subtle tradeoffs between different implementations
> and they try to actually specify an implementation.

To be fair, the LSB is in a hard position. On one hand you have application 
developers demanding an implementation "We want a solid predictable 
implementation that we can test on" and on the other you have the Linux 
distros screaming "Don't take away our right to innovate! Just stick to 
documenting interfaces and we'll make sure our implementations are compliant 
with them". What the LSB has done to try and balance in the middle is define a 
"sample implementation" rather than a "reference implementation". The LSB gets 
asked once a month "can't you just get all the Linux distros to agree on an 
implementation, or declare one of them the winner that everyone should use?" 
IMO the UnitedLinux, DCC, and UserLinux consortiums were all created with that 
as a goal.

There is also some communication between the LSB workgroup and the Austin 
Group and they are both benefitting from the other's work.

> If it's
> possible to obtain full community support, it's more likely that the
> document would be useful and a guide to implementors.  However,
> just documenting what is would be useful.

Here, here! And don't worry about doing the work via the LSB, just produce the 
standard and the LSB will adopt it when it makes sense.

-- 
Matt Taggart
matt@lackof.org


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> > > > (here) insn, an interruption occures which in turn launch the
> > > > fixup_put_user_skip_1()
> > > 
> > > A couple more questions for research :)
> > > 
> > > Q: Does the process of interruption clobber registers?
> > 
> Joel,
> 
> The machine should switch a small sub-set of the general
> registers to an alternate set, called the 'shadow registers'
> for the interruption routine to use.

fixup_put_user_skip_1() runs after the interruption, so the
shadow registers don't matter.  Look at the registers used
by fixup_put_user_skip_1() and where it returns.  Note that
GCC is only concerned about registers used in the current
function (i.e., if an asm changes sections and generates code
using registers in that section, this is all black magic to
GCC and it doesn't need to know about it).

It's clear that the __get* and __put* macros need brief comments
about the register use of the fixup routines.  Also, the fixup
routines need corresponding comments.

> I do not know if r1 is shadowed or not.

Yes.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: [parisc-linux] Does it lakes some cloberred r1 in
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To: "John David Anglin" <dave@hiauly1.hia.nrc.ca>,
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parisc,

Cat's out of the bag, even Dave seems interested. Randolph, tell me
when I'm wrong. I did a review of this code for Randolph when he
implemented the first iteration.

> > Q: Does the process of interruption clobber registers?
> r8 and r9?

Normally no, these are shadowed registers. However see below.

Routines used reside in:
~~~~~~~~~~~~~~~~~~
kernel/entry.S
kernel/traps.c
mm/fault.c

Exception Stages:
~~~~~~~~~~~~~~~
Exception happens.
Trap handler executes.
We don't handle the exception in assembly?
Shadow registers are not enough to execute C code.
All registers saved.
Load or Store has an exception table entry "fixup" in the kernel.
iaoq[0] and iaoq[1] are set to the address of the fixup.
gr[0] has the B-bit zeroed.
When the interrupt returns you execute the fixup function.

A: The process of interruption does not clobber any registers.
Corollory: The process of fixup uses r8/r9 as outputs, with r1 clobbered.

A: The fixups run in the original context of the failed load/store.

Generic Fixup Functions
~~~~~~~~~~~~~~~~~~~
There are 4 generic fixup functions:
The first 2 correspond to failed loads.
The second 2 correspond to failed stores.
There is also a FIXUP_BRANCH in the emulation routines.

arch/parisc/lib/fixup.S
fixup_get_user_skip1  (Skip 1 word, used in 32-bit mode)
fixup_get_user_skip2  (Skip 2 words, used in 64-bit mode)
fixup_put_user_skip1  ( " )
fixup_put_user_skip2  ( " )

The macro "get_fault_ip" is used by each of the 4 generic
fixups and clobbers both inputs and r1.

The registers used for each of the following functions:
r8 - Stores return value / Used as temp in get_fault_ip
r9 - Returned value (We don't want to clobber ret0)
r1 - Used as temp to load fault ip + 4/8, Used as temp in get_fault_ip.

All of the put get asm routines should list "r1" as a clobber.
All of the put get asm routines already list r8 and r9 as outputs.

Joel is correct in saying that there is a __put_kernel_asm for 64-bit
mode which is missing an r1 clobber. However, you need to know why
you are correct and understand the repercussions of the change.

All of the routines using FIXUP_BRANCH must specify "r1" clobbered.

Caveats:
- The fixup routines read the exception tables but don't list that
  memory as an input. Hence mixing put and get user/kernel
  calls and modifications to the exception tables is dangerous?

Summary:
- Add the missing "r1" clobber to the 64-bit put kernel macro.
  Run a boot test. Post a patch including the result of the boot test.

- Add the missing "r1" clobbers to any asm using FIXUP_BRANCH.
  Run a boot test. Post a pach including the result of the boot test.

Thanks!

Cheers,
Carlos.
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Subject: Re: [parisc-linux] Does it lakes some cloberred r1 in
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On Thu April 20 2006 14:32, John David Anglin wrote:
> > > > > (here) insn, an interruption occures which in turn launch the
> > > > > fixup_put_user_skip_1()
> > > > 
> > > > A couple more questions for research :)
> > > > 
> > > > Q: Does the process of interruption clobber registers?
> > > 
> > Joel,
> > 
> > The machine should switch a small sub-set of the general
> > registers to an alternate set, called the 'shadow registers'
> > for the interruption routine to use.
> 
> fixup_put_user_skip_1() runs after the interruption, so the
> shadow registers don't matter. 
>
I was unclear, I was answering the second question, my bad.

> Look at the registers used 
> by fixup_put_user_skip_1() and where it returns.  
>
Ah, the first question...

> Note that 
> GCC is only concerned about registers used in the current
> function (i.e., if an asm changes sections and generates code
> using registers in that section, this is all black magic to
> GCC and it doesn't need to know about it).
> 
Giving that a little though, and it should be obvious...

GCC only compiles a single flow of execution at a time,
the ::: information fields only apply to what the compiler
is doing at the moment.

If the author of the code writes instructions inside of the
current black box (__asm block) that are on a different path
of execution, then it is up to the author to ensure that 
the _other_ path (section in this case) observes proper
register usage.

It is the _other_ path of execution that needs its register
usage audited.

Mike
> It's clear that the __get* and __put* macros need brief comments
> about the register use of the fixup routines.  Also, the fixup
> routines need corresponding comments.
> 
> > I do not know if r1 is shadowed or not.
> 
> Yes.
> 
> Dave
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> - Add the missing "r1" clobbers to any asm using FIXUP_BRANCH.
>   Run a boot test. Post a pach including the result of the boot test.

With luck, this will fix the handling of unaligned fldd instructions
(failure of libjava negzero).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Does it lakes some cloberred r1 in 
	__put_kernel_asm() 64bit?
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--_=__=_XaM3_.1145610812.2A.67635.42.18204.52.42.007.582837036
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable

> On 4/20/06, Joel Soete <soete.joel@tiscali.be> wrote:
> > Please help me I hate this game:
> >   - tel me why?
> >   - no tel me why not?
> >   - ...
> 
> This is all part of learning. We want to teach you to do some of the
> research yourself before emailing to the list. When you send email you
> should have some research done which contributes to the solution of
> the problem. For example the research you have done below is exactly
> what I would have expected from a serious hacker. This is an excellent
> amount of research! Good work Joel.
> 
Ok next time I will do so 

> > > a) What does a clobber mean from the viewpoint of an __asm?
> >
> > Sorry, I was the first to put this question:
> > "btw I had another question: what's the meaning of 'clobber' in the s=
ens of
> > asm extension of gcc?
> 
> *I* know the answer. The question is intended for you to learn how to r=
esearch.
> Google is a horrible research tool. I recommend going to the source. GC=
C has
> great manuals.
> 
> a) Go to "http://gcc.gnu.org/"
> b) Click on "Manual"
> c) Click on "GCC 4.1.0 Manual"
> d) Read sections 5.34 and 5.35 describing the behaviour of asm's.
> 
> Please read the manuals if you don't know the answer. It keeps others f=
rom
> being frustrated. The manuals were written for a reason.
> 
installing gcc-4.0-doc dpkg is also a way to access to info files ;-)

According to your next mail:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-April/028827.h=
tml>

Here attched is the patch proposal (just includes some few white space
cleanup) ;-)

Thanks a lot all,
    Joel

--_=__=_XaM3_.1145610812.2A.67635.42.18204.52.42.007.582837036
Content-Type: text/plain;
	name="=?iso-8859-1?Q?FixupUpdate.diff?="
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment; filename="=?iso-8859-1?Q?FixupUpdate.diff?="

--- ./include/asm-parisc/uaccess.h.Orig	2005-09-14 14:57:40.000000000 +02=
00=0A+++ ./include/asm-parisc/uaccess.h	2006-04-21 10:32:54.000000000 +02=
00=0A@@ -49,20 +49,20 @@=0A #define STD_KERNEL(x, ptr)	__put_kernel_asm64=
(x,ptr)=0A #define STD_USER(x, ptr)	__put_user_asm64(x,ptr)=0A #else=0A-#=
define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)=0A-#define LDD_USER(pt=
r) __get_user_asm("ldd",ptr)=0A-#define STD_KERNEL(x, ptr) __put_kernel_a=
sm("std",x,ptr)=0A-#define STD_USER(x, ptr) __put_user_asm("std",x,ptr)=0A=
+#define LDD_KERNEL(ptr)		__get_kernel_asm("ldd",ptr)=0A+#define LDD_USER=
(ptr)		__get_user_asm("ldd",ptr)=0A+#define STD_KERNEL(x, ptr)	__put_kern=
el_asm("std",x,ptr)=0A+#define STD_USER(x, ptr)	__put_user_asm("std",x,pt=
r)=0A #endif=0A =0A /*=0A  * The exception table contains two values: the=
 first is an address=0A  * for an instruction that is allowed to fault, a=
nd the second is=0A- * the address to the fixup routine. =0A+ * the addre=
ss to the fixup routine.=0A  */=0A =0A struct exception_table_entry {=0A-=
	unsigned long insn;  /* address of insn that is allowed to fault.   */=0A=
+	unsigned long insn;  /* address of insn that is allowed to fault. */=0A=
 	long fixup;          /* fixup routine */=0A };=0A =0A@@ -76,6 +76,58 @@=
=0A 	unsigned long fault_addr;=0A };=0A =0A+/*=0A+  Refering to Carlos' m=
ail:=0A+  <http://lists.parisc-linux.org/pipermail/parisc-linux/2006-Apri=
l/028827.html>=0A+=0A+  Routines used reside in:=0A+  ~~~~~~~~~~~~~~~~~=0A=
+  kernel/entry.S=0A+  kernel/traps.c=0A+  mm/fault.c=0A+=0A+  Exception =
Stages:=0A+  ~~~~~~~~~~~~~~=0A+  Exception happens.=0A+  Trap handler exe=
cutes.=0A+  We don't handle the exception in assembly(?)=0A+  Shadow regi=
sters are not enough to execute C code.=0A+  All registers saved.=0A+  Lo=
ad or Store has an exception table entry "fixup" in the kernel.=0A+  iaoq=
[0] and iaoq[1] are set to the address of the fixup.=0A+  PSW has the B-b=
it zeroed.=0A+  When the interrupt returns you execute the fixup function=
.=0A+=0A+  A: The process of interruption does not clobber any registers.=
=0A+  Corollory: The process of fixup uses r8/r9 as outputs, with r1 clob=
bered.=0A+=0A+  A: The fixups run in the original context of the failed l=
oad/store.=0A+=0A+  Generic Fixup Functions=0A+  ~~~~~~~~~~~~~~~~~~=0A+  =
There are 4 generic fixup functions:=0A+  The first 2 correspond to faile=
d loads.=0A+  The second 2 correspond to failed stores.=0A+  There is als=
o a FIXUP_BRANCH in the emulation routines.=0A+=0A+  arch/parisc/lib/fixu=
p.S=0A+  fixup_get_user_skip_1  (Skip 1 word, used in 32-bit mode)=0A+  f=
ixup_get_user_skip_2  (Skip 2 words, used in 64-bit mode)=0A+  fixup_put_=
user_skip_1  ( " )=0A+  fixup_put_user_skip_2  ( " )=0A+=0A+  The macro "=
get_fault_ip" is used by each of the 4 generic=0A+  fixups and clobbers b=
oth inputs and r1.=0A+=0A+  The registers used for each of the following =
functions:=0A+  r8 - Stores return value / Used as temp in "get_fault_ip1=
" clobbered.=0A+=0A+  Caveats:=0A+  - The fixup routines read the excepti=
on tables but don't list that=0A+    memory as an input. Hence mixing put=
 and get user/kernel=0A+    calls and modifications to the exception tabl=
es is dangerous?=0A+ */=0A+=0A #define __get_user(x,ptr)                 =
              \=0A ({                                                    =
  \=0A 	register long __gu_err __asm__ ("r8") =3D 0;      \=0A@@ -183,7 +=
235,8 @@=0A 		"\t.dword\t1b,fixup_put_user_skip_1\n"	    \=0A 		"\t.previ=
ous"                               \=0A 		: "=3Dr"(__pu_err)             =
               \=0A-		: "r"(ptr), "r"(x), "0"(__pu_err))=0A+		: "r"(ptr),=
 "r"(x), "0"(__pu_err)	    \=0A+		: "r1")=0A =0A #define __put_user_asm(s=
tx,x,ptr)                           \=0A 	__asm__ __volatile__ (         =
                     \=0A@@ -215,10 +268,10 @@=0A 		: "r"(ptr), "r"(x), "=
0"(__pu_err)	    \=0A 		: "r1")=0A =0A-#define __put_kernel_asm64(__val,p=
tr) do {		    	    \=0A-	u64 __val64 =3D (u64)(__val);				    \=0A-	u32 h=
i =3D (__val64) >> 32;					    \=0A-	u32 lo =3D (__val64) & 0xffffffff;		=
		    \=0A+#define __put_kernel_asm64(__val,ptr) do {		    \=0A+	u64 __va=
l64 =3D (u64)(__val);			    \=0A+	u32 hi =3D (__val64) >> 32;			    \=0A+=
	u32 lo =3D (__val64) & 0xffffffff;		    \=0A 	__asm__ __volatile__ (				=
    \=0A 		"\n1:\tstw %2,0(%1)\n"			    \=0A 		"\n2:\tstw %3,4(%1)\n"			 =
   \=0A@@ -231,10 +284,10 @@=0A 		: "r1");				    \=0A } while (0)=0A =0A=
-#define __put_user_asm64(__val,ptr) do {		    	    \=0A-	u64 __val64 =3D=
 (u64)__val;				    \=0A-	u32 hi =3D (__val64) >> 32;					    \=0A-	u32 l=
o =3D (__val64) & 0xffffffff;				    \=0A+#define __put_user_asm64(__val,=
ptr) do {		    \=0A+	u64 __val64 =3D (u64)__val;			    \=0A+	u32 hi =3D (=
__val64) >> 32;			    \=0A+	u32 lo =3D (__val64) & 0xffffffff;		    \=0A =
	__asm__ __volatile__ (				    \=0A 		"\n1:\tstw %2,0(%%sr3,%1)\n"		    \=
=0A 		"\n2:\tstw %3,4(%%sr3,%1)\n"		    \=0A--- ./arch/parisc/kernel/unal=
igned.c.Orig	2006-04-21 10:36:23.000000000 +0200=0A+++ ./arch/parisc/kern=
el/unaligned.c	2006-04-21 10:45:18.000000000 +0200=0A@@ -39,13 +39,15 @@=0A=
 #define RFMT "%08lx"=0A #endif=0A =0A-#define FIXUP_BRANCH(lbl) \=0A+/* =
see <include/asm-parisc/uaccess.h> Carlos' mail reference */=0A+=0A+#defi=
ne FIXUP_BRANCH(lbl)				\=0A 	"\tldil L%%" #lbl ", %%r1\n"			\=0A 	"\tldo=
 R%%" #lbl "(%%r1), %%r1\n"		\=0A 	"\tbv,n %%r0(%%r1)\n"=0A =0A /* 1111 1=
100 0000 0000 0001 0011 1100 0000 */=0A-#define OPCODE1(a,b,c)	((a)<<26|(=
b)<<12|(c)<<6) =0A+#define OPCODE1(a,b,c)	((a)<<26|(b)<<12|(c)<<6)=0A #de=
fine OPCODE2(a,b)	((a)<<26|(b)<<1)=0A #define OPCODE3(a,b)	((a)<<26|(b)<<=
2)=0A #define OPCODE4(a)	((a)<<26)=0A@@ -132,7 +134,7 @@=0A 	unsigned lon=
g val =3D 0;=0A 	int ret;=0A =0A-	DPRINTF("load " RFMT ":" RFMT " to r%d =
for 2 bytes\n", =0A+	DPRINTF("load " RFMT ":" RFMT " to r%d for 2 bytes\n=
",=0A 		regs->isr, regs->ior, toreg);=0A =0A 	__asm__ __volatile__  (=0A@=
@ -157,7 +159,7 @@=0A "	.previous\n"=0A 	: "=3Dr" (val), "=3Dr" (ret)=0A =
	: "0" (val), "r" (saddr), "r" (regs->isr)=0A-	: "r20" );=0A+	: "r1", "r2=
0" );=0A =0A 	DPRINTF("val =3D 0x" RFMT "\n", val);=0A =0A@@ -173,7 +175,=
7 @@=0A 	unsigned long val =3D 0;=0A 	int ret;=0A =0A-	DPRINTF("load " RF=
MT ":" RFMT " to r%d for 4 bytes\n", =0A+	DPRINTF("load " RFMT ":" RFMT "=
 to r%d for 4 bytes\n",=0A 		regs->isr, regs->ior, toreg);=0A =0A 	__asm_=
_ __volatile__  (=0A@@ -202,7 +204,7 @@=0A "	.previous\n"=0A 	: "=3Dr" (v=
al), "=3Dr" (ret)=0A 	: "0" (val), "r" (saddr), "r" (regs->isr)=0A-	: "r1=
9", "r20" );=0A+	: "r1", "r19", "r20" );=0A =0A 	DPRINTF("val =3D 0x" RFM=
T "\n", val);=0A =0A@@ -219,7 +221,7 @@=0A 	__u64 val =3D 0;=0A 	int ret;=
=0A =0A-	DPRINTF("load " RFMT ":" RFMT " to r%d for 8 bytes\n", =0A+	DPRI=
NTF("load " RFMT ":" RFMT " to r%d for 8 bytes\n",=0A 		regs->isr, regs->=
ior, toreg);=0A #ifdef CONFIG_PA20=0A =0A@@ -253,7 +255,7 @@=0A "	.previo=
us\n"=0A 	: "=3Dr" (val), "=3Dr" (ret)=0A 	: "0" (val), "r" (saddr), "r" =
(regs->isr)=0A-	: "r19", "r20" );=0A+	: "r1", "r19", "r20" );=0A #else=0A=
     {=0A 	unsigned long valh=3D0,vall=3D0;=0A@@ -287,7 +289,7 @@=0A "	.p=
revious\n"=0A 	: "=3Dr" (valh), "=3Dr" (vall), "=3Dr" (ret)=0A 	: "0" (va=
lh), "1" (vall), "r" (saddr), "r" (regs->isr)=0A-	: "r19", "r20" );=0A+	:=
 "r1", "r19", "r20" );=0A 	val=3D((__u64)valh<<32)|(__u64)vall;=0A     }=0A=
 #endif=0A@@ -310,7 +312,7 @@=0A 	if (!frreg)=0A 		val =3D 0;=0A =0A-	DPR=
INTF("store r%d (0x" RFMT ") to " RFMT ":" RFMT " for 2 bytes\n", frreg, =
=0A+	DPRINTF("store r%d (0x" RFMT ") to " RFMT ":" RFMT " for 2 bytes\n",=
 frreg,=0A 		val, regs->isr, regs->ior);=0A =0A 	__asm__ __volatile__ (=0A=
@@ -335,7 +337,7 @@=0A "	.previous\n"=0A 	: "=3Dr" (ret)=0A 	: "r" (val),=
 "r" (regs->ior), "r" (regs->isr)=0A-	: "r19" );=0A+	: "r1", "r19" );=0A =
=0A 	return ret;=0A }=0A@@ -352,7 +354,7 @@=0A 	else=0A 		val =3D 0;=0A =0A=
-	DPRINTF("store r%d (0x" RFMT ") to " RFMT ":" RFMT " for 4 bytes\n", fr=
reg, =0A+	DPRINTF("store r%d (0x" RFMT ") to " RFMT ":" RFMT " for 4 byte=
s\n", frreg,=0A 		val, regs->isr, regs->ior);=0A =0A =0A@@ -389,7 +391,7 =
@@=0A "	.previous\n"=0A 	: "=3Dr" (ret)=0A 	: "r" (val), "r" (regs->ior),=
 "r" (regs->isr)=0A-	: "r19", "r20", "r21", "r22", "r1" );=0A+	: "r1", "r=
19", "r20", "r21", "r22" );=0A =0A 	return 0;=0A }=0A@@ -405,7 +407,7 @@=0A=
 	else=0A 		val =3D 0;=0A =0A-	DPRINTF("store r%d (0x%016llx) to " RFMT "=
:" RFMT " for 8 bytes\n", frreg, =0A+	DPRINTF("store r%d (0x%016llx) to "=
 RFMT ":" RFMT " for 8 bytes\n", frreg,=0A 		val,  regs->isr, regs->ior);=
=0A =0A #ifdef CONFIG_PA20=0A@@ -450,7 +452,7 @@=0A "	.previous\n"=0A 	: =
"=3Dr" (ret)=0A 	: "r" (val), "r" (regs->ior), "r" (regs->isr)=0A-	: "r19=
", "r20", "r21", "r22", "r1" );=0A+	: "r1", "r19", "r20", "r21", "r22" );=
=0A #else=0A     {=0A 	unsigned long valh=3D(val>>32),vall=3D(val&0xfffff=
fffl);=0A@@ -495,7 +497,7 @@=0A "	.previous\n"=0A 	: "=3Dr" (ret)=0A 	: "=
r" (valh), "r" (vall), "r" (regs->ior), "r" (regs->isr)=0A-	: "r19", "r20=
", "r21", "r1" );=0A+	: "r1", "r19", "r20", "r21" );=0A     }=0A #endif=0A=
 =0A@@ -523,7 +525,7 @@=0A 			last_time =3D jiffies;=0A 		}=0A =0A-		if (=
!(current->thread.flags & PARISC_UAC_NOPRINT) =0A+		if (!(current->thread=
.flags & PARISC_UAC_NOPRINT)=0A 		    && ++unaligned_count < 5) {=0A 			c=
har buf[256];=0A 			sprintf(buf, "%s(%d): unaligned access to 0x" RFMT " =
at ip=3D0x" RFMT "\n",=0A
--_=__=_XaM3_.1145610812.2A.67635.42.18204.52.42.007.582837036
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Hi all,

I've a problem with the power switch on a HP 9000 D220 machine. Actually
I'm not able to shutdown the system cleanly when the power switch is
turned off.
It seems that the kernel is properly configured because dmesg outputs
the message "Soft power switch enabled, polling @ 0xf0140000" and in the
procfs file system there's an entry "soft-power"
(/proc/sys/kernel/soft-power) containing the value 1. When I turn the
switch off, the function deferred_poweroff(void *dummy) in
drivers/parisc/power.c is (correctly) called and on the console appears
the following message:

Broadcast message from root (pts/1) (Fri Apr 21 17:12:50 2006):
The system is going down for reboot NOW!

but immediately after that the power turns off. 
I've tried it both with a precompiled kernel
(kernel-image-2.6.8-3-32_2.6.8-6sarge2_hppa.deb) as with a kernel I've
compiled myself (kernel-source-2.6.8_2.6.8-16sarge2_all.deb). The result
is the same.

I've searched several mailing lists, but so far I've not found anything
helpful around. Has anyone already experienced something like this?

Thanks in advance.
Enzo

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Xref: news.gmane.org gmane.linux.ports.parisc:23602

On Thu April 20 2006 15:04, Carlos O'Donell wrote:
> parisc,
>

Some 'deep background' since the thread Joel and I are discussing
is nearly a month old now.
http://lists.parisc-linux.org/pipermail/parisc-linux/2006-March/028603.html
 
> Cat's out of the bag, even Dave seems interested. Randolph, tell me
> when I'm wrong. I did a review of this code for Randolph when he
> implemented the first iteration.
> 
> > > Q: Does the process of interruption clobber registers?
> > r8 and r9?
> 
> Normally no, these are shadowed registers. However see below.
> 

The relevant part of the dump:

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001010e728 000000001010e718
 IIR: 0f48109c    ISR: 0000000000000080  IOR: 0000000000000002
 CPU:        0   CR30: 000000008b1bc000 CR31: 000000001053c000
 ORIG_R28: 000000001013f77c
 IAOQ[0]: _read_lock+0x18/0x30
 IAOQ[1]: _read_lock+0x8/0x30
 RP(r2): send_group_sig_info+0x3c/0xb0

Note the values of IAOQ...

I told Joel that the only way I knew of they could look like that
was a branch in the delay slot of a branch.

Which is a neat way to execute one instruction out of linear, sequential
order, but that I did not believe the compiler used that trick.
I.E:
It was either hand coded that way or a sign of something wrong.
[I might have told Joel wrong - if so, sorry Joel]

I did not think of the possibility of the queue being diddled with, using
the trashed value of a register.

I mention this at this time, so eyes can be watching for this 'back to
the future' execution order after this set of fixes goes in.

Mike

> Routines used reside in:
> ~~~~~~~~~~~~~~~~~~
> kernel/entry.S
> kernel/traps.c
> mm/fault.c
> 
> Exception Stages:
> ~~~~~~~~~~~~~~~
> Exception happens.
> Trap handler executes.
> We don't handle the exception in assembly?
> Shadow registers are not enough to execute C code.
> All registers saved.
> Load or Store has an exception table entry "fixup" in the kernel.
> iaoq[0] and iaoq[1] are set to the address of the fixup.
> gr[0] has the B-bit zeroed.
> When the interrupt returns you execute the fixup function.
> 
> A: The process of interruption does not clobber any registers.
> Corollory: The process of fixup uses r8/r9 as outputs, with r1 clobbered.
> 
> A: The fixups run in the original context of the failed load/store.
> 
> Generic Fixup Functions
> ~~~~~~~~~~~~~~~~~~~
> There are 4 generic fixup functions:
> The first 2 correspond to failed loads.
> The second 2 correspond to failed stores.
> There is also a FIXUP_BRANCH in the emulation routines.
> 
> arch/parisc/lib/fixup.S
> fixup_get_user_skip1  (Skip 1 word, used in 32-bit mode)
> fixup_get_user_skip2  (Skip 2 words, used in 64-bit mode)
> fixup_put_user_skip1  ( " )
> fixup_put_user_skip2  ( " )
> 
> The macro "get_fault_ip" is used by each of the 4 generic
> fixups and clobbers both inputs and r1.
> 
> The registers used for each of the following functions:
> r8 - Stores return value / Used as temp in get_fault_ip
> r9 - Returned value (We don't want to clobber ret0)
> r1 - Used as temp to load fault ip + 4/8, Used as temp in get_fault_ip.
> 
> All of the put get asm routines should list "r1" as a clobber.
> All of the put get asm routines already list r8 and r9 as outputs.
> 
> Joel is correct in saying that there is a __put_kernel_asm for 64-bit
> mode which is missing an r1 clobber. However, you need to know why
> you are correct and understand the repercussions of the change.
> 
> All of the routines using FIXUP_BRANCH must specify "r1" clobbered.
> 
> Caveats:
> - The fixup routines read the exception tables but don't list that
>   memory as an input. Hence mixing put and get user/kernel
>   calls and modifications to the exception tables is dangerous?
> 
> Summary:
> - Add the missing "r1" clobber to the 64-bit put kernel macro.
>   Run a boot test. Post a patch including the result of the boot test.
> 
> - Add the missing "r1" clobbers to any asm using FIXUP_BRANCH.
>   Run a boot test. Post a pach including the result of the boot test.
> 
> Thanks!
> 
> Cheers,
> Carlos.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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>     101112c4:   e8 1f 1f df     b,l,n 101112b8 <_read_lock+0x8>,r0
>     101112c8:   0f 48 10 9c     ldw 4(r26),ret0  <== exception here
> 
> r26 contains 0x105d62a8 according to Joel's message.  There isn't
> a branch in the delay slot.  The exception just occurs in the delay
> slot of a branch.  It's not obvious to me what caused the exception.

Correction, r26 contained 0x000000001051d040.  I also just noticed
that the branch is nullified (N=1 in PSW).  Just guessing, but I think
this is a timer interruption (soft lockup).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] [git patches] please pull on parisc tree
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Hi Linus,

Not a whole lot of change here so I think it is appropriate for 2.6.17-rc3.
The biggest diff here is catching up with the syscall additions, and making
ioremap default to _nocache behaviour so more drivers work. The multiple
page size code is mostly replacing hardcoded values with #defines where
appropriate, and is well tested by Helge.

Cheers,
	Kyle

The following changes since commit f4ffaa452e71495a06376f12f772342bc57051fc:
are found in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git

Grant Grundler:
      [PARISC] Document that we tolerate "Relaxed Ordering"

Helge Deller:
      [PARISC] EISA regions must be mapped NO_CACHE
      [PARISC] Misc. janitorial work
      [PARISC] defconfig updates
      [PARISC] Further work for multiple page sizes

Kyle McMartin:
      [PARISC] Add new entries to the syscall table
      [PARISC] Make ioremap default to _nocache
      [PARISC] MAINTAINERS

Matthew Wilcox:
      [PARISC] Fix up hil_kbd.c mismerge

Stuart Brady:
      [PARISC] OSS ad1889: Match register names with ALSA driver

 MAINTAINERS                        |    4 
 arch/parisc/Kconfig                |   31 ++
 arch/parisc/defconfig              |  494 +++++++++++++++++++++++-------------
 arch/parisc/kernel/asm-offsets.c   |    3 
 arch/parisc/kernel/cache.c         |    4 
 arch/parisc/kernel/entry.S         |   36 ++-
 arch/parisc/kernel/head.S          |   15 +
 arch/parisc/kernel/init_task.c     |   10 -
 arch/parisc/kernel/pacache.S       |   25 +-
 arch/parisc/kernel/sys_parisc.c    |    8 +
 arch/parisc/kernel/syscall.S       |   10 -
 arch/parisc/kernel/syscall_table.S |    8 +
 arch/parisc/kernel/vmlinux.lds.S   |   54 ++--
 arch/parisc/mm/fault.c             |    2 
 arch/parisc/mm/init.c              |   28 +-
 arch/parisc/mm/ioremap.c           |    3 
 drivers/input/keyboard/hil_kbd.c   |    2 
 drivers/parisc/pdc_stable.c        |    2 
 drivers/parisc/sba_iommu.c         |   43 ++-
 drivers/parisc/superio.c           |    4 
 include/asm-parisc/io.h            |   17 -
 include/asm-parisc/page.h          |   25 ++
 include/asm-parisc/pgtable.h       |   63 +++--
 include/asm-parisc/unistd.h        |    8 +
 sound/oss/ad1889.c                 |  198 +++++++-------
 sound/oss/ad1889.h                 |  101 ++++---
 26 files changed, 734 insertions(+), 464 deletions(-)
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Subject: Re: Bug#364231: [parisc-linux] Re: Bug#364231: exception catching
	broken on HPPA
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John David Anglin writes:
> > > smr@paer:~/gmp-4.2.dfsg/tests/cxx$ g++ -Wall test-throw.cc && ./a.out
> > > /usr/bin/ld: warning: libgcc_s.so.4, needed by /usr/lib/gcc/hppa-linux-gnu/4.0.3/libstdc++.so, may conflict with libgcc_s.so.2
> 
> I'm puzzled about this.  It seems like libstdc++ for GCC 4.0.3 was
> built using GCC 4.1 or latter.  In my 4.0.3 build, I see:
> 
> dave@gsyprf11:~/gcc-4.0/objdir/hppa-linux/libstdc++-v3/src/.libs$ ldd libstdc++.so
>         libm.so.6 => /lib/libm.so.6 (0x40643000)
> 	libgcc_s.so.2 => /lib/libgcc_s.so.2 (0x4034a000)
> 	libc.so.6 => /lib/libc.so.6 (0x40a57000)
> 	/lib/ld.so.1 (0x41252000)
> 
> But:
> 
> dave@gsyprf11:~/gcc-4.0/objdir/hppa-linux/libstdc++-v3/src/.libs$ ldd /usr/lib/gcc/hppa-linux-gnu/4.0.3/libstdc++.so
>         libm.so.6 => /lib/libm.so.6 (0x40243000)
> 	libgcc_s.so.4 => /lib/libgcc_s.so.4 (0x40746000)
> 	libc.so.6 => /lib/libc.so.6 (0x40a57000)
> 	/lib/ld.so.1 (0x41252000)
> 
> You need to build 4.0.3 and associated libraries with 4.0.3.

Yes, we do, but

$ ls -l /usr/lib/gcc/hppa-linux-gnu/4.0.3/libstdc++.so
lrwxr-xr-x 1 root root 23 Apr  6 02:08 /usr/lib/gcc/hppa-linux-gnu/4.0.3/libstdc++.so -> ../../../libstdc++.so.6

we can only have one libstdc++.so.6 installed. that's currently the
library from 4.1. So maybe we need to bump the soversion of libstdc++
on hppa?

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Subject: Re: Bug#364231: [parisc-linux] Re: Bug#364231: exception catching
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> Yes, we do, but
> 
> $ ls -l /usr/lib/gcc/hppa-linux-gnu/4.0.3/libstdc++.so
> lrwxr-xr-x 1 root root 23 Apr  6 02:08 /usr/lib/gcc/hppa-linux-gnu/4.0.3/libstdc++.so -> ../../../libstdc++.so.6

Oh, I was thinking there were separate libraries for each GCC version.
I've had to live with this for some time using hpux.

> we can only have one libstdc++.so.6 installed. that's currently the
> library from 4.1. So maybe we need to bump the soversion of libstdc++
> on hppa?

To me, that seems too complicated.  It's not just libstdc++.so.6 but
potentially every shared library built with 4.1 or later needs a bump.

The simplest approach is to make GCC 4.1 the default and remove 4.0
and earlier.  Then, gradually rebuild everthing with 4.1.  There have
been reports on the gcc list that this has been reasonably successful.

I imagine that some will complain about losing their favorite GCC
version.  The issues with C are less severe because of the libgcc_s
version bump.  Old versions will generate code that's incompatible
with the complex math routines in libc6 but they should otherwise
work.  I think for kernel building it's useful to keep old versions,
but not for much else.  Thus, the compromise may be to keep old
versions of C and drop all the other languages.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: [parisc-linux] Added clobbers to unaligned.c and uaccess.h
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Joel,

Patch to add the extra clobbers checked into CVS.
Thanks for all the work!

What's your next project? ;-)

Cheers,
Carlos.
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> On Sat, Apr 22, 2006 at 10:00:04AM +0200, Matthias Klose wrote:
> > $ ldd a.out
> >         libstdc++.so.6 =3D> /usr/lib/libstdc++.so.6 (0x40575000)
> >         libm.so.6 =3D> /lib/libm.so.6 (0x4046e000)
> >         libgcc_s.so.2 =3D> /lib/libgcc_s.so.2 (0x40068000)
> >         libc.so.6 =3D> /lib/libc.so.6 (0x4074b000)
> >         libgcc_s.so.4 =3D> /lib/libgcc_s.so.4 (0x40015000)
> >         /lib/ld.so.1 (0x400e1000)
> 
> > We end up with both libgcc_s.so.2 and libgcc_s.so.4 linked.  Is there
> > a solution other than making gcc-4.1/g++-4.1 the default and
> > rebuilding the libstdc++6 dependent packages with binary NMU's?
> 
> I guess having gcc-4.0 link against libgcc4 is out of the question?

Doing so is not a good idea, but it's only going to break numeric
applications using complex numbers and possibly vectors.

The calling conventions for passing complex values was changed between
4.0 and 4.1 when it was discovered that it didn't conform to the runtime
documentation.  Support for complex and vector objects was added to GCC
some time ago.  However noone noticed that these values weren't being
passed correctly...

The change affects the routines __muldc3, __mulsc3, __divdc3 and __divsc3
in libgcc_s.  It also affects any package/library using complex numbers,
including glibc since the registers used for passing the first few
arguments and the return value have changed.  Particularly, complex
floats are no longer passed in the floating registers.

I think the approach suggested by Matthias is ultimately the only
viable solution but the impact is broader than the libstdc++6 dependent
packages.  The situation is similar to that when DWARF EH support was
introduced.  The only other option that I can see is to delay 4.1.
However, I would like 4.1 to become the default.

For the most part, the passing of complex values in 4.0 and earlier
is internally self-consistent (there's a minor incompatibility between
PA 1.0 code and PA 1.1 code due to the fact that the left and right
halves of floating-point registers are not independently accessible
when generating PA 1.0 code).

I recognized that this was going to cause pain, and brought the matter
up for discussion on the parisc-linux list a few months ago.  There
wasn't much in the way of comments for or against.  In the end, I
decided it was probably better to make the change in 4.1 and let time
smooth over the difficulties.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Does it lakes some cloberred r1 in
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> On Fri, Apr 21, 2006 at 04:30:08PM -0400, John David Anglin wrote:
> > >     101112c4:   e8 1f 1f df     b,l,n 101112b8 <_read_lock+0x8>,r0
> > >     101112c8:   0f 48 10 9c     ldw 4(r26),ret0  <== exception here
> > > 
> > > r26 contains 0x105d62a8 according to Joel's message.  There isn't
> > > a branch in the delay slot.  The exception just occurs in the delay
> > > slot of a branch.  It's not obvious to me what caused the exception.
> > 
> > Correction, r26 contained 0x000000001051d040.  I also just noticed
> > that the branch is nullified (N=1 in PSW).  Just guessing, but I think
> > this is a timer interruption (soft lockup).
> >
> 
> This crashed palinux last night... Same IIR/IASQIAOQ... 

Actually, it's probably just a nice place to crash for the night ;)

Any info on the interruption and what was going on? In Joel's case,
the call was from here:

int
send_group_sig_info(int sig, struct siginfo *info, struct task_struct *p)
{
        int ret;
	read_lock(&tasklist_lock);
	ret = group_send_sig_info(sig, info, p);
	read_unlock(&tasklist_lock);
	return ret;
}

tasklist_lock is used in a lot of places.  send_group_sig_info only
seems to be called in one place from kernel/itimer.c.  It would seem
like there's some situation where the lock isn't getting unlocked,
or it's very highly contended.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:23610

On Sat April 22 2006 11:48, John David Anglin wrote:
> > On Fri, Apr 21, 2006 at 04:30:08PM -0400, John David Anglin wrote:
> > > >     101112c4:   e8 1f 1f df     b,l,n 101112b8 <_read_lock+0x8>,r0
> > > >     101112c8:   0f 48 10 9c     ldw 4(r26),ret0  <== exception here
> > > > 
> > > > r26 contains 0x105d62a8 according to Joel's message.  There isn't
> > > > a branch in the delay slot.  The exception just occurs in the delay
> > > > slot of a branch.  It's not obvious to me what caused the exception.
> > > 
> > > Correction, r26 contained 0x000000001051d040.  I also just noticed
> > > that the branch is nullified (N=1 in PSW).  Just guessing, but I think
> > > this is a timer interruption (soft lockup).
> > >
> > 
> > This crashed palinux last night... Same IIR/IASQIAOQ... 
> 
> Actually, it's probably just a nice place to crash for the night ;)
> 
> Any info on the interruption and what was going on? In Joel's case,
> the call was from here:
> 
> int
> send_group_sig_info(int sig, struct siginfo *info, struct task_struct *p)
> {
>         int ret;
> 	read_lock(&tasklist_lock);
> 	ret = group_send_sig_info(sig, info, p);
> 	read_unlock(&tasklist_lock);
> 	return ret;
> }
> 
> tasklist_lock is used in a lot of places.  send_group_sig_info only
> seems to be called in one place from kernel/itimer.c.  It would seem
> like there's some situation where the lock isn't getting unlocked,
> or it's very highly contended.
> 
Or the routine is not coded to make the lock instruction observable
by all processors:

> This the read lock I see in vmlinux-2.6.15-rc2-pa1:
>
> 00000000101112b0 <_read_lock>:
>
> 101112b0: 0f 40 15 dc ldcw,co 0(r26),ret0
    <format 5 instruction:  0000011 11010 00000 00 0 1 01 0111 0 11100>
    a==0,s==0,b==26,t==28
    cc==01 Coherent Operation, not a hint but required[1];
           Processor may operate on line in cache rather than update memory[2];

<quote [3]>
If a cache control hint is specified, the semaphore operation may be handled
as if a cache control hint had not been specified, or, preferably, the addressed
word is zero extended and copied into GR t and then the addressed word is set to
zero in the cache. The cleared word need not be flushed to memory.
</quote>;

<quote [4]>
if (cache line is present and dirty || coherent_system || cc != 0) {
    GR[t] <- mem_load(space,offset,0,63,NO_HINT);
    mem_store(space,offset,0,63,NO_HINT,0);
} else {
    Dcache_flush(space,offset);
    GR[t] <- mem_load(space,offset,0,63,NO_HINT);
    store_in_memory(space,offset,0,63,NO_HINT,0);
}
</quote>;

Note that the first block is selected by ((cc == 01) != 00)

The first block describes the operation required for semaphores used
by multiple execution paths on a single processor.

The second block (after the else) describes the operation required
for execution paths on multiple processors.

    [1]: http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,5310,00.html
    [2]: http://h21007.www2.hp.com/dspp/files/unprotected/parisc20/PA_6_inst_overview.pdf; page 13 and table 6-9
    [3]: http://h21007.www2.hp.com/dspp/files/unprotected/parisc20/PA_7_inst_descriptions.pdf; page 74 and 75
    [4]: ibid. 'indivisible', page 75

Next question.

Mike
> Dave
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On Sun April 23 2006 11:18, Michael S. Zick wrote:
> 
> Next question.
> 
My bad, that was just plain rude.

The question and the answer:

Multiple processor pa-risc systems with per-processor
caches use a 'cache coherency' trigger.

To trip the trigger (I.E: make the changes observable)

ldcw,co target_address

Where target_address includes the magic byte[0] of 
the cache line.

Translation:

Spin on the ldcw,co not the ldw here.

On the systems with 128 byte long cache lines,
ensure these spinlocks are 128 byte aligned not
64 byte aligned as in this dump.

Mike
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On Sat, Apr 22, 2006 at 11:22:20AM -0400, John David Anglin wrote:
...
> I recognized that this was going to cause pain, and brought the matter
> up for discussion on the parisc-linux list a few months ago.  There
> wasn't much in the way of comments for or against.  In the end, I
> decided it was probably better to make the change in 4.1 and let time
> smooth over the difficulties.

You did and I still think it was the right choice. 

thanks,
grant


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On Mon, Apr 24, 2006 at 11:07:19AM +0200, Matthias Klose wrote:
> Package: linux32
> Version: 1-3
> 
> $ uname -m
> parisc64
> 
> $ linux32 uname -m
> parisc64
>

I spent some time trying to fix this a while ago at Jeff Bailey's
request, but it required nasty invasive changes that I didn't have
time to debug. (It's not really an improvement when /sbin/init fails
to exec...)

If I have some time this week, I'll dust off the diff and see if I can
finagle it to work.


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> ldcw,co target_address
> 
> Where target_address includes the magic byte[0] of 
> the cache line.

Where is this documented?

> Translation:
> 
> Spin on the ldcw,co not the ldw here.

I believe this makes sense as the errata specifies that the ldcw,co
operation has to be performed in cache on PA 2.0 machines:
http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,5310,00.html

> On the systems with 128 byte long cache lines,
> ensure these spinlocks are 128 byte aligned not
> 64 byte aligned as in this dump.

As a practical note, this is very difficult to achieve for dynamically
allocated spinlocks.

The intent of the errata seems to be to relax the alignment requirement
for ldc[dw],co in cases where the spinlock is not being shared with a
non-coherent I/O device.  If spinlocks have to be aligned to the start
of a cacheline, there doesn't seem to be any point to the errata.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Apr 24, 2006 at 11:35:48AM -0400, John David Anglin wrote:
> The intent of the errata seems to be to relax the alignment requirement
> for ldc[dw],co in cases where the spinlock is not being shared with a
> non-coherent I/O device.

AFAIK, only one non-coherent PA-RISC box has PA2.0 and parisc-linux
doesn't support it: T600.

(I'm assuming ",co" completer is PA2.0 only - please correct me if
that's wrong.)

grant
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On Mon April 24 2006 10:35, you wrote:
> > ldcw,co target_address
> > 
> > Where target_address includes the magic byte[0] of 
> > the cache line.
> 
> Where is this documented?
> 
Well, they didn't put it in the instruction RTL where
someone could find it.  It is a footnote or mentioned
in passing somewhere.

I will look for it, I found it about 5 years ago when
Matt and I discussed this on the list, I can find it again.

But it is reasonable - you don't want to waste the cache
coherency bandwidth with every ldcw,co in the cache line.

> > Translation:
> > 
> > Spin on the ldcw,co not the ldw here.
> 
> I believe this makes sense as the errata specifies that the ldcw,co
> operation has to be performed in cache on PA 2.0 machines:
> http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,5310,00.html
> 

Now there is a footnote that applies here...

Those instruction descriptions do not always mention side-effects,
even less often do they mention the exceptions to the side-effects.

An exception (footnoted somewhere):
ldcw,co does not set the dirty bit on the dcache line.

Which makes sense, if you recall that we are in the first clause
of that indivisible RTL block - the one that avoids the Dcache flush
and corresponding memory cycles.

If the instruction had the usual side-effect of setting the dirty
bit on the cache line, then we would not be avoiding the Dcache flush
and the memory cycle (sooner or later).

So spinning on the ldcw,co is evidently what the hardware people had
in mind.  It will not generate a bunch of Dcache flushes.

Since there is no way to clear the lock with ldcw,co then when the
lock is cleared, then there must be another magic completer that needs
to be used on the instruction that resets the condition to '1' (unlocked).

Something that triggers the cache coherency system so the change is
immediately observable by all cpus.

But this is also reasonable - since the lifetime of the release period
could well be longer than the lifetime of the cache line.  Common memory
is the only place for long term storage of the released lock.

I have not found that reference yet either.  It will be one of the cache
'hints' (actually a command in this case).

> > On the systems with 128 byte long cache lines,
> > ensure these spinlocks are 128 byte aligned not
> > 64 byte aligned as in this dump.
> 
> As a practical note, this is very difficult to achieve for dynamically
> allocated spinlocks.
> 

Yea, I understand, will have to refer that to the software engineering
department.  This is the non-HP Hardware Engineering (retired) Department.

Just imagine that the non-HP Hardware Engineering (retired) Department is
temporarily out of hyper-link ink.

> The intent of the errata seems to be to relax the alignment requirement
> for ldc[dw],co in cases where the spinlock is not being shared with a
> non-coherent I/O device.  If spinlocks have to be aligned to the start
> of a cacheline, there doesn't seem to be any point to the errata.
> 

This really applies more to the second clause and/or when you have
multiple semaphores per cache line.  Also, for I/O, there is normally
no cache coherency signals between the I/O devices and the cpu(s).

Which is why non-HP systems do cache snooping.

Mike

> Dave
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Subject: [parisc-linux] Re:Added clobbers to unaligned.c and uaccess.h
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> Joel,
> 
> Patch to add the extra clobbers checked into CVS.
> Thanks for all the work!
> 
No, sincerely thanks for your help.

> What's your next project? ;-)
> 
No clue for the moment: I very need some break but a lot of idea:
    * glibc float nan values pb?
    * find an easy way to instrument of chunk of kernel code with e.g. re=
layfs
      (that was working) but builtin gcc stuff doesn't seems to be tested=
 a
       lot)?
    * ccio-dma imho need more for 64bit?
    * palo -> grub (seems to be friend but not easy to merge)?
    * finishing a ruby script to build tool chain (something is already
      working but need some cleanup and strengthening)?
    * ...

btw: just as game, I rebuild glibc-2.3.6 + my clone patch with gcc-4.1 an=
d
with same src and same kernel (results vary a very few with kernel releas=
e?),
I didn't noticed any regression versus the build with gcc-4.0 ;-)

Thanks,
    Joel=0A=0A----------=0AWordt ook lid van de Scarlet Club via een best=
aande Scarlet klant en ontvang cadeaucheques twv EUR 50! Bezoek snel http=
://www.scarletclub.be=0ADevenez aussi membre du Club Scarlet via un clien=
t Scarlet existant et recevez des cheques cadeaux jusqu'a EUR 50! Surfez =
vite sur http://www.clubscarlet.be

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> On Mon, Apr 24, 2006 at 11:35:48AM -0400, John David Anglin wrote:
> > The intent of the errata seems to be to relax the alignment requirement
> > for ldc[dw],co in cases where the spinlock is not being shared with a
> > non-coherent I/O device.
> 
> AFAIK, only one non-coherent PA-RISC box has PA2.0 and parisc-linux
> doesn't support it: T600.

It probably has coherent I & D caches as well as this seems to be a
requirement for both 1.1 and 2.0.

> (I'm assuming ",co" completer is PA2.0 only - please correct me if
> that's wrong.)

It's not in the PA 1.1 arch...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: Added clobbers to unaligned.c and uaccess.h
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On 4/24/06, Joel Soete <soete.joel@tiscali.be> wrote:
> > Joel,
> >
> > Patch to add the extra clobbers checked into CVS.
> > Thanks for all the work!
> >
> No, sincerely thanks for your help.
>
> > What's your next project? ;-)
> >
> No clue for the moment: I very need some break but a lot of idea:
>     * glibc float nan values pb?

This would be an excellent project. We have various floating point
problems that I haven't invetigated. The math tests in glibc are the
first place to start work.

Dave might have other project recommendations.

Cheers,
Carlos.
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Subject: [parisc-linux] Re: Added clobbers to unaligned.c and uaccess.h
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> btw: just as game, I rebuild glibc-2.3.6 + my clone patch with gcc-4.1 and
> with same src and same kernel (results vary a very few with kernel release?),

Have you tried rebuilding GCC with your new library?  I'm interested
in knowing how the fortran and libstdc++ testresults turn out.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:34:40 2018
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From: "Michael S. Zick" <mszick@morethan.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Does it lakes some cloberred r1 in
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On Mon April 24 2006 11:35, you wrote:
> On Mon April 24 2006 10:35, you wrote:
> > > ldcw,co target_address
> > > 
> > > Where target_address includes the magic byte[0] of 
> > > the cache line.
> > 
> > Where is this documented?
> > 
> Well, they didn't put it in the instruction RTL where
> someone could find it.  It is a footnote or mentioned
> in passing somewhere.
> 
> I will look for it, I found it about 5 years ago when
> Matt and I discussed this on the list, I can find it again.
> 

Still looking...

> But it is reasonable - you don't want to waste the cache
> coherency bandwidth with every ldcw,co in the cache line.
> 
> > > Translation:
> > > 
> > > Spin on the ldcw,co not the ldw here.
> > 
> > I believe this makes sense as the errata specifies that the ldcw,co
> > operation has to be performed in cache on PA 2.0 machines:
> > http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,5310,00.html
> > 
> 

Right, notice that it was at the request of HP-UX group for non-I/O
devices.

Think of it this way:

ldcw, co Cache_Line[0]

The hardware, system wide, exclusive lock for this cache line.

A cache line is a big place...

ldcw, co Cache_Line[4 .. max-4]

This cpu now owns the cache line, so the other cpus do not need
to be updated, nor the cache coherency bandwidth burned up...
The non-zero cache line offset does this trick.

These are the per-cpu (cache line owner) semaphores (and/or data) for 
the multiple threads of execution that are servicing whatever caused
the cache line to be grabbed on a machine wide, exclusive lock.

But if our cpu is going to be a polite neighbor to the other cpus
in the machine, it will have to use an instruction (+completer)
that is immediately observable by the other cpus when it is done
with the hardware wide lock.

Yo - Software Engineering, are you home?

Mike
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Subject: Re: [parisc-linux] Does it lakes some cloberred r1 in
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> Right, notice that it was at the request of HP-UX group for non-I/O
> devices.
> 
> Think of it this way:
> 
> ldcw, co Cache_Line[0]
> 
> The hardware, system wide, exclusive lock for this cache line.
> 
> A cache line is a big place...
> 
> ldcw, co Cache_Line[4 .. max-4]
> 
> This cpu now owns the cache line, so the other cpus do not need
> to be updated, nor the cache coherency bandwidth burned up...
> The non-zero cache line offset does this trick.

Ok, I understand.  I don't think that there is anything special
regarding Cache_Line[0].  You just need 4 bytes for the system-wide
lock.  Then, you can use the rest for semaphores on the cpu that
grabbed the system-wide lock.

Don't know if this trick would be useful for linux or not.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Does it lakes some cloberred r1 in
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> Those instruction descriptions do not always mention side-effects,
> even less often do they mention the exceptions to the side-effects.
> 
> An exception (footnoted somewhere):
> ldcw,co does not set the dirty bit on the dcache line.

Don't see this.  It uses mem_store just like stw.  The only exception
is when gr0 is the target and it behaves like a prefetch.  See also
discussion of D bit trap.  If the machine has multiple D-caches, I
don't see how the overhead present in the coherency communication
can be avoided.

In the case where store_in_memory is used, the line is first flushed
and then the data is written to memory.  It doesn't make sense to set
the dirty bit in this case.  So, if you do a tight ldcw loop without
the co completer on a CPU that is not fully coherent, you will always
be in the slow store_in_memory case.

> Since there is no way to clear the lock with ldcw,co then when the
> lock is cleared, then there must be another magic completer that needs
> to be used on the instruction that resets the condition to '1' (unlocked).
> 
> Something that triggers the cache coherency system so the change is
> immediately observable by all cpus.

The lock can be reset with a store.  You are probably thinking of
the 'O' completer.  However, I think that all PA-RISC CPUs have strongly
ordered loads and stores.  However, I think the discussion on pages
435-438 in http://ftp.parisc-linux.org/docs/arch/parisc2.0.pdf is
relevant to the SMP case.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > (I'm assuming ",co" completer is PA2.0 only - please correct me if
> > that's wrong.)
> 
> It's not in the PA 1.1 arch...

Rechecked.  I should have remembered given that I updated gas to improve
the handling of cache-control completers for PA 1.1 ;(  So, we should be
using the 'co' completer except in situations (if any) where the spinlock
is shared with a non-coherent I/O processor.  However, I believe that
PA 1.1 still has the 16-byte alignment requirement.

Need to look at the uses in GCC.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon April 24 2006 13:46, John David Anglin wrote:
> > Those instruction descriptions do not always mention side-effects,
> > even less often do they mention the exceptions to the side-effects.
> > 
> > An exception (footnoted somewhere):
> > ldcw,co does not set the dirty bit on the dcache line.
> 
> Don't see this. 
>
I agree, it is not clear

Start with:
http://h21007.www2.hp.com/dspp/files/unprotected/parisc20/PA_7_inst_descriptions.pdf

Find section 7-74, physical page 76 of the above.

Sub-section: "If the cache control hint is not specified ..."

First bullet, last sentence:
"If the line is retained in cache, it must not be marked dirty."

PA2.0 only does this on lines in cache with the co completer;
therefore, it must be 'retained in cache'.

Now:
Sub-section: "If the cache control hint is specified ..."

"... the semaphore operation _may_ be handled as if the cache control
hint had not been specified ..."

Now add in the errata to this flow ...

Then jump forward a page to the first clause of the indivisible RTL
statement:

Note that all the operations are qualified by "NO_HINT"

Duh...
And this is the easy one to find, still searching for the magic byte[0]
reference.

Mike
> It uses mem_store just like stw.  The only exception 
> is when gr0 is the target and it behaves like a prefetch.  See also
> discussion of D bit trap.  If the machine has multiple D-caches, I
> don't see how the overhead present in the coherency communication
> can be avoided.
> 
> In the case where store_in_memory is used, the line is first flushed
> and then the data is written to memory.  It doesn't make sense to set
> the dirty bit in this case.  So, if you do a tight ldcw loop without
> the co completer on a CPU that is not fully coherent, you will always
> be in the slow store_in_memory case.
> 
> > Since there is no way to clear the lock with ldcw,co then when the
> > lock is cleared, then there must be another magic completer that needs
> > to be used on the instruction that resets the condition to '1' (unlocked).
> > 
> > Something that triggers the cache coherency system so the change is
> > immediately observable by all cpus.
> 
> The lock can be reset with a store.  You are probably thinking of
> the 'O' completer.  However, I think that all PA-RISC CPUs have strongly
> ordered loads and stores.  However, I think the discussion on pages
> 435-438 in http://ftp.parisc-linux.org/docs/arch/parisc2.0.pdf is
> relevant to the SMP case.
> 
> Dave
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On Mon April 24 2006 13:00, Michael S. Zick wrote:
> On Mon April 24 2006 11:35, you wrote:
> > On Mon April 24 2006 10:35, you wrote:
> > > > ldcw,co target_address
> > > > 
> > > > Where target_address includes the magic byte[0] of 
> > > > the cache line.
> > > 
> > > Where is this documented?
> > > 
> > Well, they didn't put it in the instruction RTL where
> > someone could find it.  It is a footnote or mentioned
> > in passing somewhere.
> > 
> > I will look for it, I found it about 5 years ago when
> > Matt and I discussed this on the list, I can find it again.
> > 
> 
I give up - I can not find it now.
Which does not mean it is not there, somewhere.

Ever need to be put to sleep?
Read this:
http://h21007.www2.hp.com/dspp/files/unprotected/parisc20/PA_G_memory_ordering.pdf

In particular, that the semaphore instructions are described as
a load followed (sic: indivisibly) by a store.

Now branch thee here:
http://h21007.www2.hp.com/dspp/files/unprotected/parisc20/PA_6_inst_overview.pdf

Pick section 6-10, physically pages 11 and 12.

Now overlay tables 6-7, 6-8, and 6-9 and note the relationship of cc=01 in all
three tables.

ldw cc=01 <reserved>
stw cc=01 <stw,bc >
ldcw cc=01 <ldcw,co >

This is not an accident, in the days this cpu was designed, silicon did not
grow on trees.

Read thee the paragraphs between table 6-8, and 6-9 - note the special
significance of cache line byte[0] for stw,bc.

But finding that specificly for ldcw,co - even in en_HP - is beyond my
abilities.

Nor do I have a machine where I could simply change the *&^*& spinlock
macro to see if it makes a difference.

I think I will go fishing with Joel,
I am too old to stand for my orals now.

Mike
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> Now overlay tables 6-7, 6-8, and 6-9 and note the relationship of cc=01 in all
> three tables.
> 
> ldw cc=01 <reserved>
> stw cc=01 <stw,bc >
> ldcw cc=01 <ldcw,co >
> 
> This is not an accident, in the days this cpu was designed, silicon did not
> grow on trees.
> 
> Read thee the paragraphs between table 6-8, and 6-9 - note the special
> significance of cache line byte[0] for stw,bc.

See.

> But finding that specificly for ldcw,co - even in en_HP - is beyond my
> abilities.

Possibly, you saw this in an ERS.

> I think I will go fishing with Joel,
> I am too old to stand for my orals now.

I thought I was the old guy here!

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Apr 24, 2006 at 12:50:48PM -0400, John David Anglin wrote:
> > AFAIK, only one non-coherent PA-RISC box has PA2.0 and parisc-linux
> > doesn't support it: T600.
> 
> It probably has coherent I & D caches as well as this seems to be a
> requirement for both 1.1 and 2.0.

Sorry - you are correct.
I was thinking IO. T600 is not DMA/cache coherent.

apologies for spacing out,
grant
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Subject: [parisc-linux] Re: Added clobbers to unaligned.c and uaccess.h
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Dave, Carlos,
> > btw: just as game, I rebuild glibc-2.3.6 + my clone patch with gcc-4.=
1 and
> > with same src and same kernel (results vary a very few with kernel re=
lease?),
> 
> Have you tried rebuilding GCC with your new library?
Not yet...
>  I'm interested
> in knowing how the fortran and libstdc++ testresults turn out.
>
Ok just grab svn 20060425 (svn 113240) and start its build on my b2k, nev=
er
the less will take some time, I will advise asap ;-)
 
Carlos,

Ok for me to focus on float pb: I just started some month ago and iirc
numerous pb are around nan (Not-a-Number) values. TBH, before reading tha=
t I
was ignoring all about this (eventhought I was good in numerical computin=
g at
school, well 20 years ago, but not yet enough ;-) ). So I need first to
isolate faulty stuff then attempt to analyse the pb...

Hth,
    Joel
=0A=0A----------=0AWordt ook lid van de Scarlet Club via een bestaande Sc=
arlet klant en ontvang cadeaucheques twv EUR 50! Bezoek snel http://www.s=
carletclub.be=0ADevenez aussi membre du Club Scarlet via un client Scarle=
t existant et recevez des cheques cadeaux jusqu'a EUR 50! Surfez vite sur=
 http://www.clubscarlet.be

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On Mon April 24 2006 10:35, John David Anglin wrote:
> > ldcw,co target_address
> > 
> > Where target_address includes the magic byte[0] of 
> > the cache line.
> 
> Where is this documented?
> 
Close, not quite there yet:

HP patent number: 4,713,755

The page to retrieve this by number:
http://patft1.uspto.gov/netahtml/PTO/srchnum.htm

Now it should be a 'simple' matter to just read
every patent that references this one.

Where in the _published HP documents_ that describe
the implementation - Ah, that is another question.

So far the closest approximation is the stw,bc
behavior when including magic byte[0].

Mike
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> > > An exception (footnoted somewhere):
> > > ldcw,co does not set the dirty bit on the dcache line.
> > 
> > Don't see this. 
> >
> I agree, it is not clear
> 
> Start with:
> http://h21007.www2.hp.com/dspp/files/unprotected/parisc20/PA_7_inst_descriptions.pdf
> 
> Find section 7-74, physical page 76 of the above.
> 
> Sub-section: "If the cache control hint is not specified ..."
> 
> First bullet, last sentence:
> "If the line is retained in cache, it must not be marked dirty."
> 
> PA2.0 only does this on lines in cache with the co completer;
> therefore, it must be 'retained in cache'.
> 
> Now:
> Sub-section: "If the cache control hint is specified ..."
> 
> "... the semaphore operation _may_ be handled as if the cache control
> hint had not been specified ..."
> 
> Now add in the errata to this flow ...

I believe that the PA 2.0 errata requires support for the cache control
hint and that the operation must be performed in cache when it is specified.
The first bullet and second bullets only apply when the hint isn't specified.
I would argue that the errata requires PA 2.0 machines to effectively
use bullet 2 (see indivisible on page 7-75).  In this case, I believe
that the line has to marked dirty.  The difference being that the line
hasn't been flushed and zero written to memory.

The PA 1.1 situation is messy in that the arch gave the hardware designers
an out since the hint can be ignored.  So, on a mchine that's not coherent,
it seems like an efficient implementation would try load the line and
make it dirty before doing the ldcw.  However, this is only going to work
if the machine does the operation in cache.  It's allowed to use the
technique in bullet 1.  Thus, probably trying ldcw once and then sampling
with ldw is as optimal has it gets without checking the capabilities
of each CPU.  PA7100LC ERS says the cache control hint is supported and
will operate in cache if the line is present the cache.  PA7300LC ERS
states that ldcw hints are supported at all privilege levels.  So,
I would say add the hint but be aware that it might be ignored on some
cpus.

> Then jump forward a page to the first clause of the indivisible RTL
> statement:
> 
> Note that all the operations are qualified by "NO_HINT"

I think the hints used in mem_store are those in table 6-8 which is
why ldcw uses "NO_HINT".

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue April 25 2006 10:17, Michael S. Zick wrote:
> On Mon April 24 2006 10:35, John David Anglin wrote:
> > > ldcw,co target_address
> > > 
> > > Where target_address includes the magic byte[0] of 
> > > the cache line.
> > 
> > Where is this documented?
> > 
> Close, not quite there yet:
> 
> HP patent number: 4,713,755
> 
> The page to retrieve this by number:
> http://patft1.uspto.gov/netahtml/PTO/srchnum.htm
> 
> Now it should be a 'simple' matter to just read
> every patent that references this one.
> 

One more conjecture confirmed,

The cache lines are a master/slave arrangement,
only one processor (or device) can be the master
(owner) of the cache line.

This is accomplished by keeping the cpu id (address)
of the master in the virtual tag.

Ref: HP patent number: 5,197,146

That is how the logical 'makePrivate' of the formal
memory model happens.

Translation:

Thou shall not allow load balancing to migrate a
task that holds a spinlock - you leave the master
of that cache line on the prior processor.

Mike
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> Carlos,
>
> Ok for me to focus on float pb: I just started some month ago and iirc
> numerous pb are around nan (Not-a-Number) values. TBH, before reading tha=
t I
> was ignoring all about this (eventhought I was good in numerical computin=
g at
> school, well 20 years ago, but not yet enough ;-) ). So I need first to
> isolate faulty stuff then attempt to analyse the pb...

Perhaps ask Dave if he has some libstdc++ failures for you to look into?
There are all sorts of interesting areas you can learn if you are intereste=
d.

Cheers,
Carlos.
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Subject: [parisc-linux] Re: Added clobbers to unaligned.c and uaccess.h
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> > Ok for me to focus on float pb: I just started some month ago and iirc
> > numerous pb are around nan (Not-a-Number) values. TBH, before reading that I
> > was ignoring all about this (eventhought I was good in numerical computing at
> > school, well 20 years ago, but not yet enough ;-) ). So I need first to
> > isolate faulty stuff then attempt to analyse the pb...
> 
> Perhaps ask Dave if he has some libstdc++ failures for you to look into?
> There are all sorts of interesting areas you can learn if you are interested.

libstdc++ is pretty much ok (1 FAIL on head at the moment).  The easiest
way to find problems that need work is to go to the bugzilla search page:
http://gcc.gnu.org/bugzilla/query.cgi

Do a search with "hppa" in the target box.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Does it lakes some cloberred r1 in
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> On Tue April 25 2006 10:17, Michael S. Zick wrote:
> > On Mon April 24 2006 10:35, John David Anglin wrote:
> > > > ldcw,co target_address
> > > > 
> > > > Where target_address includes the magic byte[0] of 
> > > > the cache line.
> > > 
> > > Where is this documented?
> > > 
> > Close, not quite there yet:
> > 
> > HP patent number: 4,713,755
> > 
> > The page to retrieve this by number:
> > http://patft1.uspto.gov/netahtml/PTO/srchnum.htm
> > 
> > Now it should be a 'simple' matter to just read
> > every patent that references this one.
> > 
> 
> One more conjecture confirmed,
> 
> The cache lines are a master/slave arrangement,
> only one processor (or device) can be the master
> (owner) of the cache line.
> 
> This is accomplished by keeping the cpu id (address)
> of the master in the virtual tag.
> 
> Ref: HP patent number: 5,197,146
> 
> That is how the logical 'makePrivate' of the formal
> memory model happens.

That's pretty much what I said this morning.

Correct me if I'm wrong but wouldn't an ldcw,co on a different
cpu cause a transfer of ownership?  However, it's not clear to
me that a cpu that doesn't own the line can unlock the semaphore
owned by a different cpu.  As far as I can tell, the only
instructions that appear to perform a coherent store are ldcw,co
and ldcd,co, and these can't do an unlock.  Hmmm, maybe doing a
flush and sync (see G-3 and G-4) before the store would do the trick.

> Translation:
> 
> Thou shall not allow load balancing to migrate a
> task that holds a spinlock - you leave the master
> of that cache line on the prior processor.

Page G-3 says that a SYNC is necessary when switching tasks.  Possibly,
this together with the flush allows spinlocks in user code.

I see the PA-8200 has a CINCD instruction (coherent 64-bit increment).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > > Ok for me to focus on float pb: I just started some month ago and i=
irc
> > > numerous pb are around nan (Not-a-Number) values. TBH, before readi=
ng that I
> > > was ignoring all about this (eventhought I was good in numerical
computing at
> > > school, well 20 years ago, but not yet enough ;-) ). So I need firs=
t to
> > > isolate faulty stuff then attempt to analyse the pb...
> > 
> > Perhaps ask Dave if he has some libstdc++ failures for you to look in=
to?
> > There are all sorts of interesting areas you can learn if you are int=
erested.
> 
> libstdc++ is pretty much ok (1 FAIL on head at the moment).

Well all test are not yet finished but the one you are interested in yes.=

Here are summaries:

Test Run By root on Wed Apr 26 01:16:36 2006
Native configuration is hppa-unknown-linux-gnu

                =3D=3D=3D gfortran tests =3D=3D=3D

Schedule of variations:
    unix

Running target unix
Using /usr/share/dejagnu/baseboards/unix.exp as board description file fo=
r target.
Using /usr/share/dejagnu/config/unix.exp as generic interface file for ta=
rget.
Using
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/src/gcc/testsuite/=
config/default.exp
as tool-and-target-specific interf
ace file.
Running
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/src/gcc/testsuite/=
gfortran.dg/dg.exp
...
FAIL: gfortran.dg/enum_2.f90  -O   (test for errors, line 9)
FAIL: gfortran.dg/enum_2.f90  -O  (test for excess errors)
Running
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/src/gcc/testsuite/=
gfortran.dg/gomp/gomp.exp
...
Running
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/src/gcc/testsuite/=
gfortran.dg/vect/vect.exp
...
Running
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/src/gcc/testsuite/=
gfortran.fortran-torture/compile/compile.exp
...
Running
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/src/gcc/testsuite/=
gfortran.fortran-torture/execute/execute.exp
...

                =3D=3D=3D gfortran Summary =3D=3D=3D

# of expected passes            12718
# of unexpected failures        2
# of expected failures          14
# of unsupported tests          96
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/build/gcc/testsuit=
e/gfortran/../../gfortran
 version 4.2.0 20060425 (experime
ntal)

Personal comment: seems far better then 20060419 buildd?

[snip]
Test Run By root on Wed Apr 26 02:56:44 2006
Native configuration is hppa-unknown-linux-gnu

                =3D=3D=3D libstdc++ tests =3D=3D=3D

Schedule of variations:
    unix

Running target unix
Using /usr/share/dejagnu/baseboards/unix.exp as board description file fo=
r target.
Using /usr/share/dejagnu/config/unix.exp as generic interface file for ta=
rget.
Using
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/src/libstdc++-v3/t=
estsuite/config/default.exp
as tool-and-target-specif
ic interface file.
Running
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/src/libstdc++-v3/t=
estsuite/libstdc++-abi/abi.exp
...
Running
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/src/libstdc++-v3/t=
estsuite/libstdc++-dg/conformance.exp
...
FAIL: 25_algorithms/prev_permutation/1.cc execution test
XPASS: 26_numerics/cmath/c99_classification_macros_c.cc (test for excess =
errors)

                =3D=3D=3D libstdc++ Summary =3D=3D=3D

# of expected passes            3540
# of unexpected failures        1
# of unexpected successes       1
# of expected failures          12
# of unsupported tests          315


Personal comment: same as 20060419 buildd ;-)


>  The easiest
> way to find problems that need work is to go to the bugzilla search pag=
e:
> http://gcc.gnu.org/bugzilla/query.cgi
> 
> Do a search with "hppa" in the target box.
> 
Ok I will check ;-)

Btw: I also check the kernel build (latest 2.6.17-rc2-pa4) with this gcc-=
4.1:
32bit up for D380 build without pb, boot and seems to works fine ;-)

Hth,
    Joel

PS: those build tests were done on a _chroot disk_ on which was installed=

previously mentinoned glibc6 (2.3.6-7 + clone patch) build itself with gc=
c-4.1
(dpkg 4.1.0-1)
(just mentioned this because I noticed some small diff in glibc test resu=
lts
when there were made on a chroot disk?)=0A=0A----------=0AWordt ook lid v=
an de Scarlet Club via een bestaande Scarlet klant en ontvang cadeauchequ=
es twv EUR 50! Bezoek snel http://www.scarletclub.be=0ADevenez aussi memb=
re du Club Scarlet via un client Scarlet existant et recevez des cheques =
cadeaux jusqu'a EUR 50! Surfez vite sur http://www.clubscarlet.be

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>                 === gfortran Summary ===
> 
> # of expected passes            12718
> # of unexpected failures        2
> # of expected failures          14
> # of unsupported tests          96
> # of expected failures          12
> # of unsupported tests          315

Excellent.  All the complex fails are fixed.  I'll do a PR on the
two enum fails.

It would be great if you could generate a test summary with
contrib/test_summary and use the generated script to mail the
results to gcc-testresults@gcc.gnu.org.

Thanks,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon April 24 2006 11:50, John David Anglin wrote:
> > On Mon, Apr 24, 2006 at 11:35:48AM -0400, John David Anglin wrote:
> > > The intent of the errata seems to be to relax the alignment requirement
> > > for ldc[dw],co in cases where the spinlock is not being shared with a
> > > non-coherent I/O device.
> > 
> > AFAIK, only one non-coherent PA-RISC box has PA2.0 and parisc-linux
> > doesn't support it: T600.
> 
> It probably has coherent I & D caches as well as this seems to be a
> requirement for both 1.1 and 2.0.
> 
> > (I'm assuming ",co" completer is PA2.0 only - please correct me if
> > that's wrong.)
> 
> It's not in the PA 1.1 arch...
> 
Dave, Grant, Group;

We are faced with 10 year old documentation on a 20 year old design
and a question on a 21st century kernel.

To find a direct quote in answer to a bullet proof spinlock in this
context has eluded me.
But, I think I can explain the requirements.

To keep this mail from becoming pathologically long, I will paraphrase
a lot.

You want on hand the:

PA7200_design.pdf (HP website);

Ms. Ruby B. Lee's article "Precision Architecture" from IEEE Computer,
Volume 22, No. 1, January 1989, pp 79-91 (IEEE Society will sell you 
a reprint);

The tables and descriptions of load/store completer codes from the
PA Instruction Overview (website);

The instruction descriptions for ldw/stw/ldcw from the PA Instruction
descriptions (website);

Optionally, HP Patent No. 6,079,012 - get the 'image' version with
the nice flow charts. (ignore the issue date)

- - - -

Background:

Ms. Lee redesigned the data cache system for the PA7200; she also
gave us the instructions that we need to deal with our problem.

Ms. Lee describes this as a Level 1 cache without a Level 2 cache.
Without quibbling over terminology, consider it a split, single
level, cache system.  That makes its layout clearer.

Physically, it is split into two parts.  A small cache, on-chip,
which she terms an 'assist cache' and the larger capacity, off-chip
cache.  Both run at cpu clock speed.

The cpu operates only on/to/from the data in the assist cache.
A not present address is fetched directly to the assist cache, if
it is not present in the off-chip cache.

What happens when the little cache runs out of room?

Without programmer intervention, it is written to the off-chip cache,
and it is the off-chip cache that deals with memory when required.

How to make changes (such as lock release) immediately observable?

Ms. Lee gave us a couple new instructions.  The tech writer who wrote
the instruction descriptions call these 'Hints'. 
Ms. Lee describes them as cache control commands.

Enter the 'sl' completer for ldw/stw.

Specifying the 'sl' disables the write-back to the off-chip cache
and causes the assist cache to write to main memory.  In effect, a
strongly ordered store of a Dcache line flush.

This design also employs 'cache snooping' and allows approximately
ten snoops to be outstanding at the same time.  

The snoops have a higher priority than the data/instruction transactions.
They _should not_ (but might) require a 'sync' to give us the 
immediately observable lock release that we require.

It is unclear to me if the ownership (master/slave) relationship
of the cache lines still holds in this new design.  Both the on-chip
and off-chip caches are under the control of the same on-chip CAM.
(Which probably why she calls this a single level cache system.)

- - - -

Entering the 21st century, Linux world...

Consider:
Load balancing can 'pull' a task off of a cpu and migrate it
to another cpu...
Kernel code is executed in the kernel context of the user task...
Tasks can be preempted...

It seems (without a code path audit) that a task could be migrated
to another cpu while holding an 'in system' spinlock.

Now that would be a rare occurrence, but the current spinlocks only
fail once every two or three days under heavy load.

- - - -

The bullet proof spinlock...

The elegant solution lies somewhere between this and what is
currently implemented.

/* Optional, only if available and proven needed */
- - Save current flag and set tcb 'do not migrate'
- - Save current flag and set tcb 'do not preempt'

/* If another processor already holds the lock, the cache
   line has been replicated in our cache. Pretend we are
   first to use the lock. */

	ldw,sl the_lock, a_register  /* This will be assist cache only */
    ldcw,co the_lock, a_register /* Try to grab lock */

- - If successful, continue
- - If fail, spin on either ldcw,co or a ldw,sl - not clear which

/* Now release the lock with the implied assist cache line flush
   to memory. */

   stw,sl UNLOCKED, the_lock

/* If we diddled the scheduler tcb flags, restore them here
- - Restore the tcb 'do not preempt'
- - Restore the tcb 'do not migrate'

- - - -

At which point, I must defer to the software engineering department.

Mike
> Dave
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Xref: news.gmane.org gmane.linux.ports.parisc:23639

> >                 =3D=3D=3D gfortran Summary =3D=3D=3D
> > 
> > # of expected passes            12718
> > # of unexpected failures        2
> > # of expected failures          14
> > # of unsupported tests          96
> > # of expected failures          12
> > # of unsupported tests          315
> 
> Excellent.  All the complex fails are fixed.  I'll do a PR on the
> two enum fails.
> 
> It would be great if you could generate a test summary with
> contrib/test_summary 

mmm, the build of the gcc-snapshot dpkg already prepare its 'test-summary=
' file:
Results for 4.2.0 20060425 (experimental) testsuite on hppa-unknown-linux=
-gnu
LAST_UPDATED: 
Native configuration is hppa-unknown-linux-gnu

		=3D=3D=3D g++ tests =3D=3D=3D


Running target unix

		=3D=3D=3D g++ Summary =3D=3D=3D

# of expected passes		12322
# of expected failures		67
# of unsupported tests		124
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/build/gcc/testsuit=
e/g++/../../g++
 version 4.2.0 20060425 (experimental)

		=3D=3D=3D gcc tests =3D=3D=3D


Running target unix
WARNING: program timed out.
FAIL: gcc.c-torture/compile/20001226-1.c  -O3 -g  (test for excess errors=
)
FAIL: gcc.c-torture/execute/builtin-bitops-1.c execution,  -O3
-fomit-frame-pointer -funroll-loops 
FAIL: gcc.c-torture/execute/builtin-bitops-1.c execution,  -O3
-fomit-frame-pointer -funroll-all-loops -finline-functions 
FAIL: gcc.dg/gomp/pr25989.c (test for excess errors)
FAIL: gcc.dg/torture/pr24626-1.c  -O2  (test for excess errors)
FAIL: gcc.dg/torture/pr24626-1.c  -O3 -fomit-frame-pointer  (test for exc=
ess
errors)
FAIL: gcc.dg/torture/pr24626-1.c  -O3 -g  (test for excess errors)
FAIL: gcc.dg/torture/pr24626-1.c  -Os  (test for excess errors)
FAIL: gcc.dg/torture/pr24626-2.c  -O2  (test for excess errors)
FAIL: gcc.dg/torture/pr24626-2.c  -O3 -fomit-frame-pointer  (test for exc=
ess
errors)
FAIL: gcc.dg/torture/pr24626-2.c  -O3 -g  (test for excess errors)
FAIL: gcc.dg/torture/pr24626-3.c  -O2  (test for excess errors)
FAIL: gcc.dg/torture/pr24626-3.c  -O3 -fomit-frame-pointer  (test for exc=
ess
errors)
FAIL: gcc.dg/torture/pr24626-3.c  -O3 -g  (test for excess errors)
FAIL: gcc.dg/torture/pr24626-3.c  -Os  (test for excess errors)
FAIL: gcc.dg/tree-prof/val-prof-2.c scan-tree-dump n \\+ \\-1
XPASS: gcc.dg/tree-ssa/loop-1.c scan-assembler-times foo 5

		=3D=3D=3D gcc Summary =3D=3D=3D

# of expected passes		37948
# of unexpected failures	16
# of unexpected successes	1
# of expected failures		79
# of untested testcases		28
# of unsupported tests		382
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/build/gcc/xgcc  ve=
rsion
4.2.0 20060425 (experimental)

		=3D=3D=3D gfortran tests =3D=3D=3D


Running target unix
FAIL: gfortran.dg/enum_2.f90  -O   (test for errors, line 9)
FAIL: gfortran.dg/enum_2.f90  -O  (test for excess errors)

		=3D=3D=3D gfortran Summary =3D=3D=3D

# of expected passes		12718
# of unexpected failures	2
# of expected failures		14
# of unsupported tests		96
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/build/gcc/testsuit=
e/gfortran/../../gfortran
 version 4.2.0 20060425 (experimental)

		=3D=3D=3D obj-c++ tests =3D=3D=3D


Running target unix
FAIL: obj-c++.dg/comp-types-10.mm (test for excess errors)
FAIL: obj-c++.dg/cxx-ivars-2.mm execution test
FAIL: obj-c++.dg/encode-3.mm (test for excess errors)
FAIL: obj-c++.dg/encode-8.mm execution test
FAIL: obj-c++.dg/isa-field-1.mm (test for excess errors)
FAIL: obj-c++.dg/lookup-2.mm (test for excess errors)
WARNING: obj-c++.dg/lookup-2.mm compilation failed to produce executable
FAIL: obj-c++.dg/try-catch-2.mm (test for excess errors)
WARNING: obj-c++.dg/try-catch-2.mm compilation failed to produce executab=
le
FAIL: obj-c++.dg/try-catch-9.mm (test for excess errors)
WARNING: obj-c++.dg/try-catch-9.mm compilation failed to produce executab=
le

		=3D=3D=3D obj-c++ Summary =3D=3D=3D

# of expected passes		425
# of unexpected failures	8
# of unsupported tests		13
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/build/gcc/testsuit=
e/obj-c++/../../g++
 version 4.2.0 20060425 (experimental)

		=3D=3D=3D objc tests =3D=3D=3D


Running target unix

		=3D=3D=3D objc Summary =3D=3D=3D

# of expected passes		1752
# of expected failures		7
# of unsupported tests		24
/CAD/parisc-linux/Dpkg/dpkg-work/gcc-snapshot-20060425/build/gcc/xgcc  ve=
rsion
4.2.0 20060425 (experimental)

		=3D=3D=3D treelang tests =3D=3D=3D


Running target unix

		=3D=3D=3D treelang Summary =3D=3D=3D

# of expected passes		50
		=3D=3D=3D libffi tests =3D=3D=3D


Running target unix

		=3D=3D=3D libffi Summary =3D=3D=3D

# of expected passes		1072
# of unsupported tests		8
		=3D=3D=3D libgomp tests =3D=3D=3D


Running target unix
FAIL: libgomp.c/critical-1.c (test for excess errors)
WARNING: libgomp.c/critical-1.c compilation failed to produce executable
FAIL: libgomp.c/loop-1.c (test for excess errors)
WARNING: libgomp.c/loop-1.c compilation failed to produce executable
FAIL: libgomp.c/loop-2.c (test for excess errors)
WARNING: libgomp.c/loop-2.c compilation failed to produce executable
FAIL: libgomp.c/ordered-1.c (test for excess errors)
WARNING: libgomp.c/ordered-1.c compilation failed to produce executable
FAIL: libgomp.c/ordered-2.c (test for excess errors)
WARNING: libgomp.c/ordered-2.c compilation failed to produce executable
FAIL: libgomp.c/sections-1.c (test for excess errors)
WARNING: libgomp.c/sections-1.c compilation failed to produce executable
FAIL: libgomp.c/single-1.c (test for excess errors)
WARNING: libgomp.c/single-1.c compilation failed to produce executable
WARNING: program timed out.
FAIL: libgomp.fortran/reduction6.f90  -O0  execution test
WARNING: program timed out.
FAIL: libgomp.fortran/reduction6.f90  -O1  execution test
WARNING: program timed out.
FAIL: libgomp.fortran/reduction6.f90  -O2  execution test
WARNING: program timed out.
FAIL: libgomp.fortran/reduction6.f90  -O3 -fomit-frame-pointer  execution=
 test
WARNING: program timed out.
FAIL: libgomp.fortran/reduction6.f90  -O3 -fomit-frame-pointer -funroll-l=
oops
 execution test
WARNING: program timed out.
FAIL: libgomp.fortran/reduction6.f90  -O3 -fomit-frame-pointer
-funroll-all-loops -finline-functions  execution test
WARNING: program timed out.
FAIL: libgomp.fortran/reduction6.f90  -O3 -g  execution test
WARNING: program timed out.
FAIL: libgomp.fortran/reduction6.f90  -Os  execution test

		=3D=3D=3D libgomp Summary =3D=3D=3D

# of expected passes		1136
# of unexpected failures	15
# of unsupported tests		110
		=3D=3D=3D libjava tests =3D=3D=3D


Running target unix
XPASS: PR26858 execution - source compiled test
XPASS: PR26858 output - source compiled test
XPASS: PR26858 execution - bytecode->native test
XPASS: PR26858 output - bytecode->native test
XPASS: PR26858 -O3 execution - source compiled test
XPASS: PR26858 -O3 output - source compiled test
XPASS: PR26858 -O3 execution - bytecode->native test
XPASS: PR26858 -O3 output - bytecode->native test
FAIL: Serialization output - gij test
FAIL: Serialization output - gij test
FAIL: negzero output - gij test
FAIL: negzero output - gij test
FAIL: pr25676 output - gij test
FAIL: pr25676 output - gij test

		=3D=3D=3D libjava Summary =3D=3D=3D

# of expected passes		4143
# of unexpected failures	6
# of unexpected successes	8
# of expected failures		12
# of untested testcases		10
		=3D=3D=3D libmudflap tests =3D=3D=3D


Running target unix

		=3D=3D=3D libmudflap Summary =3D=3D=3D

# of expected passes		1814
		=3D=3D=3D libstdc++ tests =3D=3D=3D


Running target unix
FAIL: 25_algorithms/prev_permutation/1.cc execution test
XPASS: 26_numerics/cmath/c99_classification_macros_c.cc (test for excess =
errors)

		=3D=3D=3D libstdc++ Summary =3D=3D=3D

# of expected passes		3540
# of unexpected failures	1
# of unexpected successes	1
# of expected failures		12
# of unsupported tests		315

Compiler version: 4.2.0 20060425 (experimental) 
Platform: hppa-unknown-linux-gnu
configure flags: -v --prefix=3D/usr/lib/gcc-snapshot --enable-shared
--with-system-zlib --disable-nls --enable-__cxa_atexit --enable-clocale=3D=
gnu
--enable-libstdcxx-debug --enable-java-awt=3Dgtk --enable-gtk-cairo
--with-java-home=3D/usr/lib/gcc-snapshot/jre --enable-mpfr --disable-werr=
or
hppa-linux-gnu --enable-languages=3Dc,c++,fortran,java,objc,obj-c++,treel=
ang
BOOT_CFLAGS=3D-O2


Build Dependencies:
Desired=3DUnknown/Install/Remove/Purge/Hold
| Status=3DNot/Installed/Config-files/Unpacked/Failed-config/Half-install=
ed
|/ Err?=3D(none)/Hold/Reinst-required/X=3Dboth-problems (Status,Err: uppe=
rcase=3Dbad)
||/ Name           Version             Description
+++-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D
ii  binutils       2.16.1cvs20060413-1 The GNU assembler, linker and bina=
ry
utilities


Patches that Debian applied in this version:

cpu-default-i486:
  set default 32bit ix86 architecture to i486

gcc-ice-hack:
  2004-01-23  Jakub Jelinek  <jakub@redhat.com>
  
  	* system.h (ICE_EXIT_CODE): Define.
  	* gcc.c (execute): Don't free first string early, but at the end
  	of the function.  Call retry_ice if compiler exited with
  	ICE_EXIT_CODE.
  	(retry_ice): New function.
  	* diagnostic.c (diagnostic_count_diagnostic,
  	diagnostic_action_after_output, error_recursion): Exit with
  	ICE_EXIT_CODE instead of FATAL_EXIT_CODE.

Counting all warnings,
there are 0 warnings in stage3 of this bootstrap.

Number of warnings per file:

Number of warning types:
=3D=3D=3D=3D<>=3D=3D=3D=3D

Or would it be better to run the purely gcc script?


>and use the generated script to mail the
> results to gcc-testresults@gcc.gnu.org.
> 
> Thanks,

Welcome,
    Joel
=0A=0A----------=0AWordt ook lid van de Scarlet Club via een bestaande Sc=
arlet klant en ontvang cadeaucheques twv EUR 50! Bezoek snel http://www.s=
carletclub.be=0ADevenez aussi membre du Club Scarlet via un client Scarle=
t existant et recevez des cheques cadeaux jusqu'a EUR 50! Surfez vite sur=
 http://www.clubscarlet.be

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Subject: [parisc-linux] updated tulip workqueue patch
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Xref: news.gmane.org gmane.linux.ports.parisc:23640

Updated version of Francois Romieu <romieu <at> fr.zoreil.com>'s patch
to convert tulip to use workqueues.

diff --git a/drivers/net/tulip/21142.c b/drivers/net/tulip/21142.c
index 683f14b..ffba0c1 100644
--- a/drivers/net/tulip/21142.c
+++ b/drivers/net/tulip/21142.c
@@ -26,9 +26,9 @@ static u16 t21142_csr15[] = { 0x0008, 0x
 
 /* Handle the 21143 uniquely: do autoselect with NWay, not the EEPROM list
    of available transceivers.  */
-void t21142_timer(unsigned long data)
+void t21142_media_task(void *data)
 {
-	struct net_device *dev = (struct net_device *)data;
+	struct net_device *dev = data;
 	struct tulip_private *tp = netdev_priv(dev);
 	void __iomem *ioaddr = tp->base_addr;
 	int csr12 = ioread32(ioaddr + CSR12);
diff --git a/drivers/net/tulip/media.c b/drivers/net/tulip/media.c
index f53396f..75c7659 100644
--- a/drivers/net/tulip/media.c
+++ b/drivers/net/tulip/media.c
@@ -44,8 +44,10 @@ static const unsigned char comet_miireg2
 
 /* MII transceiver control section.
    Read and write the MII registers using software-generated serial
-   MDIO protocol.  See the MII specifications or DP83840A data sheet
-   for details. */
+   MDIO protocol.
+   See IEEE 802.3-2002.pdf (Section 2, Chapter "22.2.4 Management functions")
+   or DP83840A data sheet for more details.
+   */
 
 int tulip_mdio_read(struct net_device *dev, int phy_id, int location)
 {
@@ -261,24 +263,56 @@ void tulip_select_media(struct net_devic
 				u16 *reset_sequence = &((u16*)(p+3))[init_length];
 				int reset_length = p[2 + init_length*2];
 				misc_info = reset_sequence + reset_length;
-				if (startup)
+				if (startup) {
+					int timeout = 10;	/* max 1 ms */
 					for (i = 0; i < reset_length; i++)
 						iowrite32(get_u16(&reset_sequence[i]) << 16, ioaddr + CSR15);
+				
+					/* flush posted writes */
+					ioread32(ioaddr + CSR15);
+
+					/* Sect 3.10.3 in DP83840A.pdf (p39) */
+					msleep(1);
+
+					/* Section 4.2 in DP83840A.pdf (p43) */
+					/* and IEEE 802.3 "22.2.4.1.1 Reset" */
+					while (timeout-- &&
+						(tulip_mdio_read (dev, phy_num, MII_BMCR) & BMCR_RESET))
+						msleep(1);
+				}
 				for (i = 0; i < init_length; i++)
 					iowrite32(get_u16(&init_sequence[i]) << 16, ioaddr + CSR15);
+
+				ioread32(ioaddr + CSR15);	/* flush posted writes */
 			} else {
 				u8 *init_sequence = p + 2;
 				u8 *reset_sequence = p + 3 + init_length;
 				int reset_length = p[2 + init_length];
 				misc_info = (u16*)(reset_sequence + reset_length);
 				if (startup) {
+					int timeout = 10;	/* max 1 ms */
 					iowrite32(mtable->csr12dir | 0x100, ioaddr + CSR12);
 					for (i = 0; i < reset_length; i++)
 						iowrite32(reset_sequence[i], ioaddr + CSR12);
+
+					/* flush posted writes */
+					ioread32(ioaddr + CSR12);
+
+					/* Sect 3.10.3 in DP83840A.pdf (p39) */
+					msleep(1);
+
+					/* Section 4.2 in DP83840A.pdf (p43) */
+					/* and IEEE 802.3 "22.2.4.1.1 Reset" */
+					while (timeout-- &&
+						(tulip_mdio_read (dev, phy_num, MII_BMCR) & BMCR_RESET))
+						msleep(1);
 				}
 				for (i = 0; i < init_length; i++)
 					iowrite32(init_sequence[i], ioaddr + CSR12);
+
+				ioread32(ioaddr + CSR12);	/* flush posted writes */
 			}
+
 			tmp_info = get_u16(&misc_info[1]);
 			if (tmp_info)
 				tp->advertising[phy_num] = tmp_info | 1;
diff --git a/drivers/net/tulip/timer.c b/drivers/net/tulip/timer.c
index e058a9f..272ef62 100644
--- a/drivers/net/tulip/timer.c
+++ b/drivers/net/tulip/timer.c
@@ -18,13 +18,14 @@
 #include "tulip.h"
 
 
-void tulip_timer(unsigned long data)
+void tulip_media_task(void *data)
 {
-	struct net_device *dev = (struct net_device *)data;
+	struct net_device *dev = data;
 	struct tulip_private *tp = netdev_priv(dev);
 	void __iomem *ioaddr = tp->base_addr;
 	u32 csr12 = ioread32(ioaddr + CSR12);
 	int next_tick = 2*HZ;
+	unsigned long flags;
 
 	if (tulip_debug > 2) {
 		printk(KERN_DEBUG "%s: Media selection tick, %s, status %8.8x mode"
@@ -126,6 +127,15 @@ void tulip_timer(unsigned long data)
 	}
 	break;
 	}
+
+
+	spin_lock_irqsave(&tp->lock, flags);
+	if (tp->timeout_recovery) {
+		tulip_tx_timeout_complete(tp, ioaddr);
+		tp->timeout_recovery = 0;
+	}
+	spin_unlock_irqrestore(&tp->lock, flags);
+
 	/* mod_timer synchronizes us with potential add_timer calls
 	 * from interrupts.
 	 */
diff --git a/drivers/net/tulip/tulip.h b/drivers/net/tulip/tulip.h
index 05d2d96..c35ccf4 100644
--- a/drivers/net/tulip/tulip.h
+++ b/drivers/net/tulip/tulip.h
@@ -46,6 +46,7 @@ struct tulip_chip_table {
 	int valid_intrs;	/* CSR7 interrupt enable settings */
 	int flags;
 	void (*media_timer) (unsigned long data);
+	void (*media_task) (void *);
 };
 
 
@@ -367,6 +368,7 @@ struct tulip_private {
 	unsigned int medialock:1;	/* Don't sense media type. */
 	unsigned int mediasense:1;	/* Media sensing in progress. */
 	unsigned int nway:1, nwayset:1;		/* 21143 internal NWay. */
+	unsigned int timeout_recovery:1;
 	unsigned int csr0;	/* CSR0 setting. */
 	unsigned int csr6;	/* Current CSR6 control settings. */
 	unsigned char eeprom[EEPROM_SIZE];	/* Serial EEPROM contents. */
@@ -385,6 +387,7 @@ struct tulip_private {
 	void __iomem *base_addr;
 	int csr12_shadow;
 	int pad0;		/* Used for 8-byte alignment */
+	struct work_struct media_work;
 };
 
 
@@ -399,7 +402,7 @@ struct eeprom_fixup {
 
 /* 21142.c */
 extern u16 t21142_csr14[];
-void t21142_timer(unsigned long data);
+void t21142_media_task(void *data);
 void t21142_start_nway(struct net_device *dev);
 void t21142_lnk_change(struct net_device *dev, int csr5);
 
@@ -437,7 +440,7 @@ void pnic_lnk_change(struct net_device *
 void pnic_timer(unsigned long data);
 
 /* timer.c */
-void tulip_timer(unsigned long data);
+void tulip_media_task(void *data);
 void mxic_timer(unsigned long data);
 void comet_timer(unsigned long data);
 
@@ -486,4 +489,14 @@ static inline void tulip_restart_rxtx(st
 	tulip_start_rxtx(tp);
 }
 
+static inline void tulip_tx_timeout_complete(struct tulip_private *tp, void __iomem *ioaddr)
+{
+	/* Stop and restart the chip's Tx processes. */
+	tulip_restart_rxtx(tp);
+	/* Trigger an immediate transmit demand. */
+	iowrite32(0, ioaddr + CSR1);
+
+	tp->stats.tx_errors++;
+}
+
 #endif /* __NET_TULIP_H__ */
diff --git a/drivers/net/tulip/tulip_core.c b/drivers/net/tulip/tulip_core.c
index c67c912..d067e91 100644
--- a/drivers/net/tulip/tulip_core.c
+++ b/drivers/net/tulip/tulip_core.c
@@ -131,7 +131,16 @@ int tulip_debug = TULIP_DEBUG;
 int tulip_debug = 1;
 #endif
 
+static struct workqueue_struct *ktulipd_workqueue;
 
+static void tulip_timer(unsigned long data)
+{
+	struct net_device *dev = (struct net_device *)data;
+	struct tulip_private *tp = netdev_priv(dev);
+
+	if (netif_running(dev))
+		queue_work(ktulipd_workqueue, &tp->media_work);
+}
 
 /*
  * This table use during operation for capabilities and media timer.
@@ -145,59 +154,60 @@ struct tulip_chip_table tulip_tbl[] = {
 
   /* DC21140 */
   { "Digital DS21140 Tulip", 128, 0x0001ebef,
-	HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | HAS_PCI_MWI, tulip_timer },
+	HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | HAS_PCI_MWI, tulip_timer,
+	tulip_media_task },
 
   /* DC21142, DC21143 */
   { "Digital DS21143 Tulip", 128, 0x0801fbff,
 	HAS_MII | HAS_MEDIA_TABLE | ALWAYS_CHECK_MII | HAS_ACPI | HAS_NWAY
-	| HAS_INTR_MITIGATION | HAS_PCI_MWI, t21142_timer },
+	| HAS_INTR_MITIGATION | HAS_PCI_MWI, tulip_timer, t21142_media_task },
 
   /* LC82C168 */
   { "Lite-On 82c168 PNIC", 256, 0x0001fbef,
-	HAS_MII | HAS_PNICNWAY, pnic_timer },
+	HAS_MII | HAS_PNICNWAY, pnic_timer, },
 
   /* MX98713 */
   { "Macronix 98713 PMAC", 128, 0x0001ebef,
-	HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, mxic_timer },
+	HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, mxic_timer, },
 
   /* MX98715 */
   { "Macronix 98715 PMAC", 256, 0x0001ebef,
-	HAS_MEDIA_TABLE, mxic_timer },
+	HAS_MEDIA_TABLE, mxic_timer, },
 
   /* MX98725 */
   { "Macronix 98725 PMAC", 256, 0x0001ebef,
-	HAS_MEDIA_TABLE, mxic_timer },
+	HAS_MEDIA_TABLE, mxic_timer, },
 
   /* AX88140 */
   { "ASIX AX88140", 128, 0x0001fbff,
 	HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | MC_HASH_ONLY
-	| IS_ASIX, tulip_timer },
+	| IS_ASIX, tulip_timer, tulip_media_task },
 
   /* PNIC2 */
   { "Lite-On PNIC-II", 256, 0x0801fbff,
-	HAS_MII | HAS_NWAY | HAS_8023X | HAS_PCI_MWI, pnic2_timer },
+	HAS_MII | HAS_NWAY | HAS_8023X | HAS_PCI_MWI, pnic2_timer, },
 
   /* COMET */
   { "ADMtek Comet", 256, 0x0001abef,
-	HAS_MII | MC_HASH_ONLY | COMET_MAC_ADDR, comet_timer },
+	HAS_MII | MC_HASH_ONLY | COMET_MAC_ADDR, comet_timer, },
 
   /* COMPEX9881 */
   { "Compex 9881 PMAC", 128, 0x0001ebef,
-	HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, mxic_timer },
+	HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, mxic_timer, },
 
   /* I21145 */
   { "Intel DS21145 Tulip", 128, 0x0801fbff,
 	HAS_MII | HAS_MEDIA_TABLE | ALWAYS_CHECK_MII | HAS_ACPI
-	| HAS_NWAY | HAS_PCI_MWI, t21142_timer },
+	| HAS_NWAY | HAS_PCI_MWI, tulip_timer, tulip_media_task },
 
   /* DM910X */
   { "Davicom DM9102/DM9102A", 128, 0x0001ebef,
 	HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | HAS_ACPI,
-	tulip_timer },
+	tulip_timer, tulip_media_task },
 
   /* RS7112 */
   { "Conexant LANfinity", 256, 0x0001ebef,
-	HAS_MII | HAS_ACPI, tulip_timer },
+	HAS_MII | HAS_ACPI, tulip_timer, tulip_media_task },
 
 };
 
@@ -523,20 +533,9 @@ static void tulip_tx_timeout(struct net_
 			   "SIA %8.8x %8.8x %8.8x %8.8x, resetting...\n",
 			   dev->name, ioread32(ioaddr + CSR5), ioread32(ioaddr + CSR12),
 			   ioread32(ioaddr + CSR13), ioread32(ioaddr + CSR14), ioread32(ioaddr + CSR15));
-		if ( ! tp->medialock  &&  tp->mtable) {
-			do
-				--tp->cur_index;
-			while (tp->cur_index >= 0
-				   && (tulip_media_cap[tp->mtable->mleaf[tp->cur_index].media]
-					   & MediaIsFD));
-			if (--tp->cur_index < 0) {
-				/* We start again, but should instead look for default. */
-				tp->cur_index = tp->mtable->leafcount - 1;
-			}
-			tulip_select_media(dev, 0);
-			printk(KERN_WARNING "%s: transmit timed out, switching to %s "
-				   "media.\n", dev->name, medianame[dev->if_port]);
-		}
+		tp->timeout_recovery = 1;
+		queue_work(ktulipd_workqueue, &tp->media_work);
+		goto out_unlock;
 	} else if (tp->chip_id == PNIC2) {
 		printk(KERN_WARNING "%s: PNIC2 transmit timed out, status %8.8x, "
 		       "CSR6/7 %8.8x / %8.8x CSR12 %8.8x, resetting...\n",
@@ -576,14 +575,9 @@ static void tulip_tx_timeout(struct net_
 	}
 #endif
 
-	/* Stop and restart the chip's Tx processes . */
-
-	tulip_restart_rxtx(tp);
-	/* Trigger an immediate transmit demand. */
-	iowrite32(0, ioaddr + CSR1);
-
-	tp->stats.tx_errors++;
+	tulip_tx_timeout_complete(tp, ioaddr);
 
+out_unlock:
 	spin_unlock_irqrestore (&tp->lock, flags);
 	dev->trans_start = jiffies;
 	netif_wake_queue (dev);
@@ -733,6 +727,8 @@ static void tulip_down (struct net_devic
 	void __iomem *ioaddr = tp->base_addr;
 	unsigned long flags;
 
+	flush_workqueue(ktulipd_workqueue);
+
 	del_timer_sync (&tp->timer);
 #ifdef CONFIG_TULIP_NAPI
 	del_timer_sync (&tp->oom_timer);
@@ -1399,6 +1395,8 @@ static int __devinit tulip_init_one (str
 	tp->timer.data = (unsigned long)dev;
 	tp->timer.function = tulip_tbl[tp->chip_id].media_timer;
 
+	INIT_WORK(&tp->media_work, tulip_tbl[tp->chip_id].media_task, dev);
+
 	dev->base_addr = (unsigned long)ioaddr;
 
 #ifdef CONFIG_TULIP_MWI
@@ -1845,6 +1843,8 @@ static struct pci_driver tulip_driver = 
 
 static int __init tulip_init (void)
 {
+	int ret;
+
 #ifdef MODULE
 	printk (KERN_INFO "%s", version);
 #endif
@@ -1853,14 +1853,23 @@ static int __init tulip_init (void)
 	tulip_rx_copybreak = rx_copybreak;
 	tulip_max_interrupt_work = max_interrupt_work;
 
+	ktulipd_workqueue = create_workqueue("ktulipd");
+	if (ret < 0)
+		goto out;
+
 	/* probe for and init boards */
-	return pci_module_init (&tulip_driver);
+	ret = pci_module_init (&tulip_driver);
+	if (ret < 0)
+		destroy_workqueue(ktulipd_workqueue);
+out:
+	return ret;
 }
 
 
 static void __exit tulip_cleanup (void)
 {
 	pci_unregister_driver (&tulip_driver);
+	destroy_workqueue(ktulipd_workqueue);
 }
 
 
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Xref: news.gmane.org gmane.linux.ports.parisc:23641

Group,

On the this page, in the PA 2.0 reference section:
http://parisc-linux.org/documentation/index.html

Could someone post copies of these two docs?

The PA8200 heavy iron supplement to the architecture ref:
http://docs.hp.com/en/A3725-90004/A3725-90004.pdf

The PA8500 heavy iron supplement to the architecture ref:
http://docs.hp.com/en/A5074-90004/A5074-90004.pdf

Although these are titled V-Class servers they seem to
be the only documentation on the PA8x00 coherent memory
system outside of the HP vaults.

Contain a lot of useful information, like how to make
coherent semaphores (spinlocks) work on the PA8x00
server classes.

(Dave found them)
Mike
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Subject: Re: [parisc-linux] Heavy Iron Reference Docs
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> On the this page, in the PA 2.0 reference section:
> http://parisc-linux.org/documentation/index.html

I also found the following:
http://h21007.www2.hp.com/dspp/files/unprotected/itanium/spinlocks.pdf

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Apr 29, 2006 at 10:50:49PM -0500, Michael S. Zick wrote:
...
> Although these are titled V-Class servers they seem to
> be the only documentation on the PA8x00 coherent memory
> system outside of the HP vaults.

On page "20 of 248" for V2500 doc:
    "This document does not attempt to duplicate information in that
     manual. Instead, it presents only V2500 server-specific information."

And ISTR V-class has "unique" constraints on coherency.
Sorry - I've forgotten details. But you might start on
page "71" (aka page 89 using xpdf numbering):
|  The instructions which flush based on a memory line address are PDC,
|  FDC and FIC. These instructions are broadcast to other processors
|  within a node that may be sharing the same cache lines. These
|  instructions, therefore, have global effects within a node.
...
|  Cache flush instructions must be followed by a sync instruction to ensure
|  that all flushes have made it to memory.

and Page "75" (aka page 93 of pdf):
|  CTI cache interfaces
|  The PA-RISC architecture (1.0 and 2.0) does not support the concept of a
|  CTI Cache. Thus, there are no PA-RISC architected instructions for
|  issuing the CTI cache operations.

Seems to state V2500 NUMA implementation is NOT supported by the general
PA 2.0 architecture. Be very careful to not generalize statements made in
the V-class specific documents.

I'm currently only certain cc-NUMA V-2500 has cache coherency issues
with DMA.  A seperate exciting topic for discussion once I've retired.
(at least another 20 years or so)  :)


> Contain a lot of useful information, like how to make
> coherent semaphores (spinlocks) work on the PA8x00
> server classes.

How to implement spinlocks on V2500 is not necessarily the
same set of requirements for all other classes of PA20 machines.
Keep in mind parisc-linux currently does NOT support any V-class
machines - ie we have no ability to test theories about locking
other than with HP-UX.


Lastly, if other HP employees get permission to redistribute
the V-class PDF files, I'd be happy to put them on ftp.parisc-linux.org.
Until parisc-linux kernel supports V-class, I have no interest in
pursuing permission to do redistribute those documents.

thanks,
grant
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On Sun April 30 2006 02:03, you wrote:
> 
> Seems to state V2500 NUMA implementation is NOT supported by the general
> PA 2.0 architecture. Be very careful to not generalize statements made in
> the V-class specific documents.
> 

Grant, I wish it was that simple.

What you point out of about the V2500 seems
to be exact.

The V2200 has different memory hardware and
a different means for coherent semaphores.

My biggest mistake was to think that we can
go by the cpu version. There will have to be 
another way found.

HP-UX uses an external library for semaphores
to get it correct, at least sometimes.
The S... is getting deep.

What can be demonstrated at this moment is:

PA8500 - works (?)
PA8600 - broke
PA8700 - works
PA8800 - ???
PA8900 - broke (?)

The lack of documentation that would tell us
why does not mean we have given up though.

Mike
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On Sun, Apr 30, 2006 at 12:36:50AM -0400, John David Anglin wrote:
> 
> I also found the following:
> http://h21007.www2.hp.com/dspp/files/unprotected/itanium/spinlocks.pdf
>

Our in-kernel spinlocks respect this, minus the pretest which probably
isn't necessary for anything but performance. See include/asm-parisc/spinlock.h
__raw_ macros for more details. I suspect mb() is probably a good equivalent
for the notation used as a compiler barrier in that document.

Note, the document also uses LDCW,CO so I suspect this is correct
in our implementation as well. Also note that in PA1.1 LDCW,CO is simply
a hint and will not relax the alignment requirement.

-- --

To address the previous point, I believe when I first discovered
the V-class SAR a year or two ago I tried to hardcode a few of the
ops in them to see if they would work on my C3000. I don't remember
whether the result was a LDW equivalent or an illegal operation trap,
but it didn't work as expected none the less. Until someone from HP
is able to confirm the existance of some of these hversion-dependant
atomic ops, I am going to pretend they don't exist.

However, if someone from HP wants to give details if any magic instructions
exist in any of the PA8x00 processors I have... I'd be more than happy to
try and make use of the information to optimize some of our atomic ops.

Cheers,
	Kyle 
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Subject: Re: [parisc-linux] Heavy Iron Reference Docs
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> Our in-kernel spinlocks respect this, minus the pretest which probably
> isn't necessary for anything but performance. See include/asm-parisc/spinlock.h
> __raw_ macros for more details. I suspect mb() is probably a good equivalent
> for the notation used as a compiler barrier in that document.

They also lack the optimization discussed in section 4.1 paragraph 4
(write zero byte to high order byte of lock word to try to make the
cacheline dirty for the executing cpu).  The mb() should work as a
compiler barrier.

I also suggest using an ordered store for the unlock operation.  This
doesn't cost anything and may help to ensure that the order of memory
accesses as seen by another processor occur in the expected sequence.

> Note, the document also uses LDCW,CO so I suspect this is correct
> in our implementation as well.

I've come to believe that using the ",CO' completer may be a bug.
I think it would be better to drop using the ",CO' completer and use
the trick of storing a zero byte to high-byte of the lock word to
make the cacheline dirty.

It all comes down to this crucial bit of code in the ldcw description:

  (indivisible)
  if (cache line is present and dirty || coherent_system || cc != 0) {
    GR[t] <-- zero_ext(mem_load(space,offset,0,31,NO_HINT),32);
    mem_store(space,offset,0,31,NO_HINT,0);
  } else {
    Dcache_flush(space, offset);
    GR[t] <-- zero_ext(mem_load(space,offset,0,31,NO_HINT),32);
    store_in_memory(space,offset,0,31,NO_HINT,0);
  }

and what happens when we have a MP system that supports cc and
coherent_system == 0.  Obviously, specifying ",CO" on a system
that's fully coherent doesn't make a difference.

This is what the ",CO" completer is supposed to do:

  "The Coherent Operation cache control hint is a recommendation
   to the processor that, if the addressed data is already in the
   cache, it can operate on the addressed data in the cache rather
   than having to update memory."

Note the line doesn't have to be dirty.  Unless extreme care is
used, the line could have been be brought into cache by a load for
data elsewhere on the line.  So for correct operation of 'ldcw,co',
there really must be no inter-processor timing problems in kicking
out cachelines.  Otherwise, we could end up with two dirty cachelines
and a broken spinlock.

It may be this is only reliable on fully coherent systems.  While
the N-class is classified as a UMA machine, it has two system buses
separated by a memory controller.  Each system bus can handle four
processors with L1 and L2 cache.  Thus, it would seem safer to adopt
the prewrite and use ldcw without the cache control completer.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Heavy Iron Reference Docs
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> Somewhere it is written: "No data should be stored on the same cache
> line as the lock unless all access is protected by that lock."

It's in the arch:

  When using semaphores to synchronize with I/O, care must be taken
  in placing other information in the same cache line as the semaphore.
  Data which is writable, can only be placed in the same cache line as
  a semaphore if access to write the data is controlled by the semaphore.

I think it's easy to misread these two sentences (i.e., to assume
that writeable data can occur on the same line as the semaphore
if the semaphore isn't being used to synchonize with I/O).

I'm almost certain we have more than one semaphore per line in current
kernels and I think that using ldcw,co is dangerous when that's done.
ldcw appears safer because it does a flush if needed.  Still, I worry
that this may not be sufficient because a sync is usually also necessary.
Flushes are weakly ordered.

If we dedicate 128 bytes per semaphore, then possibly ldcw,co will work.
It's also optimal from the contention standpoint.  This is pointed out
in the paper on semaphores.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Heavy Iron Reference Docs
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On Sun April 30 2006 18:30, John David Anglin wrote:
> > Somewhere it is written: "No data should be stored on the same cache
> > line as the lock unless all access is protected by that lock."
> 
> It's in the arch:
> 
>   When using semaphores to synchronize with I/O, care must be taken
>   in placing other information in the same cache line as the semaphore.
>   Data which is writable, can only be placed in the same cache line as
>   a semaphore if access to write the data is controlled by the semaphore.
> 
> I think it's easy to misread these two sentences (i.e., to assume
> that writeable data can occur on the same line as the semaphore
> if the semaphore isn't being used to synchonize with I/O).
> 
> I'm almost certain we have more than one semaphore per line in current
> kernels and I think that using ldcw,co is dangerous when that's done.
>

Been giving that some thought, mixed with the prior weeks findings...

Consider;
Two processors;
Two semaphores, unrelated by any program logic, except they share
the same cache line;

Each of the processors grabs an 'unrelated' semaphore -

No matter how I work that problem, there is a failure window in at 
least one of the event order sequences.

I agree: "Don't do that (tm)"

Mike

> ldcw appears safer because it does a flush if needed.  Still, I worry
> that this may not be sufficient because a sync is usually also necessary.
> Flushes are weakly ordered.
> 
> If we dedicate 128 bytes per semaphore, then possibly ldcw,co will work.
> It's also optimal from the contention standpoint.  This is pointed out
> in the paper on semaphores.
> 
> Dave
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On Sun April 30 2006 16:25, John David Anglin wrote:
> 
> Note the line doesn't have to be dirty.  Unless extreme care is
> used, the line could have been be brought into cache by a load for
> data elsewhere on the line.  So for correct operation of 'ldcw,co',
> there really must be no inter-processor timing problems in kicking
> out cachelines.  Otherwise, we could end up with two dirty cachelines
> and a broken spinlock.
> 

Somewhere it is written: "No data should be stored on the same cache
line as the lock unless all access is protected by that lock."

I recall the quote, do not recall which document.

That is what you just said above.  It makes sense even if not using
the coherent version of the semaphore instruction.

It makes even more sense if we are directly trying to control the
cache behavior using the coherent version.

One lock per cache line and knowledge of how long the cache line
is on a machine seems to be safe rule for now.

I.E: Fix it first, make it elegant later.

> It may be this is only reliable on fully coherent systems.  While
> the N-class is classified as a UMA machine, it has two system buses
> separated by a memory controller.  Each system bus can handle four
> processors with L1 and L2 cache.  Thus, it would seem safer to adopt
> the prewrite and use ldcw without the cache control completer.
> 

Scratches head...

I wonder where Joel has his processors installed in relation to the
two busses?  Both on same buss or one per buss?  Would his lockups
go away if he picked the other relationship?

I will ask him.  (or perhaps I just did)

Mike
> Dave
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On Sun April 30 2006 18:01, Michael S. Zick wrote:
> 
> Scratches head...
> 
> I wonder where Joel has his processors installed in relation to the
> two busses?  Both on same buss or one per buss?  Would his lockups
> go away if he picked the other relationship?
> 
> I will ask him.  (or perhaps I just did)
>

Browsing old parisc spinlock code, I find a comment that the N4K
can only have one outstanding PxTLB transaction at a time.

Is it not the PxTLB transactions that implement the inter-processor
coherency?

Which is of course required for inter-processor spinlocks to work.

And, of course, this being Linux, the queue is protected by a spinlock!

Did someone just shoot themselves in the foot?

Mike
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> Er, no; we're talking about official Debian packages here, and the
> libstdc++.so.6 in Debian is now from gcc-4.1.  The problem is precisely that
> GMP *is* being built using gcc-4.0, but libstdc++ is from gcc-4.1, resulting
> in the double libgcc_s problem.

Then, you must build *eveything* for hppa with gcc-4.1 or later.

Unfortunately, there's an ABI break.  Mixing libraries compiled with
4.0 or earlier with libraries compiled with 4.1 or later is just going
to cause unnecessary problems.   3.3 uses libstdc++.so.5, so you
avoid the double libgcc_s problem building GMP.  However, you still
have the ABI change affecting the passing and return of complex types.

At a fundamental level, libstdc++.so.6, libgfortran.so.1.0.0 and any
other gcc libraries built with 4.1 or later need glibc built with 4.1
to function correctly because of the various complex functions in
the math library.

I think there's a dynamic loader bug here as well.  I'm just
guessing but I think the double libgcc_s problem causes a problem
with the handling of .eh_frame data.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Apr 30, 2006 at 05:25:13PM -0400, John David Anglin wrote:
...
> I also suggest using an ordered store for the unlock operation.  This
> doesn't cost anything and may help to ensure that the order of memory
> accesses as seen by another processor occur in the expected sequence.

I've had it drilled into my head that all parisc implmentations
have strongly ordered memory subsystems. John Marvin (jsm) has
stated that more than a few times on this list. So "ordered store"
is the same as a regular store.

> It all comes down to this crucial bit of code in the ldcw description:

I'd rather have someone like Jerry Huck or someone in his experience
comment on this before we go down this path.  I'll try to find
someone to consult with this week.

...
> It may be this is only reliable on fully coherent systems.  While
> the N-class is classified as a UMA machine, it has two system buses
> separated by a memory controller.  Each system bus can handle four
> processors with L1 and L2 cache.

AFAIK, N-class has no L2 cache.

But it's worse than you think.
N-class has two _Merced_ busses connected to the memory controller. 
Each Processor is connected via a double pumped Runway Bus to "Dew"
which acts as a "bridge" to one of the Merced Busses.

[ Digression - certain document says:
	In PA-RISC, code fetches are non-coherent, such that PCX-W doesn't
	even supply Vindex bits that would allow the code fetches to be
	coherent.
]

> Thus, it would seem safer to adopt
> the prewrite and use ldcw without the cache control completer.

I'm skeptical but will ask about this.
Maybe I'm thinking kernel space only...is this intended only for
user space or for kernel also?

thanks,
grant
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On Sun, Apr 30, 2006 at 06:28:26PM -0500, Michael S. Zick wrote:
> On Sun April 30 2006 18:01, Michael S. Zick wrote:
> > 
> > Scratches head...
> > 
> > I wonder where Joel has his processors installed in relation to the
> > two busses?  Both on same buss or one per buss?  Would his lockups
> > go away if he picked the other relationship?
> > 
> > I will ask him.  (or perhaps I just did)
> >
> 
> Browsing old parisc spinlock code, I find a comment that the N4K
> can only have one outstanding PxTLB transaction at a time.

The original document says:
	The Merced bus is designed to only support a single broadcast
	PxTLB transaction in progress at a time, and this must be guaranteed
	by software. Software must semaphore to guarantee that only one
	processor is trying to issue a broadcast PxTLB at a time.

	Local PxTLBs, however, have no restrictions, since they are executed
	entirely on the issuing processor.

> Is it not the PxTLB transactions that implement the inter-processor
> coherency?

I don't think so.

> 
> Which is of course required for inter-processor spinlocks to work.
> 
> And, of course, this being Linux, the queue is protected by a spinlock!

PA-RISC _only_ has a spinlock.

> Did someone just shoot themselves in the foot?

Do you honestly think the HP HW engineers were _that_ stupid?

They occasionally make mistakes....but designing an SMP machine
that doesn't have at least one working atomic op would be a bit
over the top. ;)

grant
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On Tue May 2 2006 01:24, Grant Grundler wrote:
> On Sun, Apr 30, 2006 at 06:28:26PM -0500, Michael S. Zick wrote:
>
- - - -
> > Is it not the PxTLB transactions that implement the inter-processor
> > coherency?
> 
> I don't think so.
>

Makes sense, the hardware function transactions, such as coherency
transactions are usually not accessable by even kernel code.

Ignoring diagnostic features of course.
 
> 
> 
> Do you honestly think the HP HW engineers were _that_ stupid?
> 

No.
But programmers of old hardware are not always up to the same
standard.  Typo's, Think-o's, and Brain Farts happen.

Mike
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[should we drop parisc-linux?]

John David Anglin writes:
> > Er, no; we're talking about official Debian packages here, and the
> > libstdc++.so.6 in Debian is now from gcc-4.1.  The problem is precisely that
> > GMP *is* being built using gcc-4.0, but libstdc++ is from gcc-4.1, resulting
> > in the double libgcc_s problem.
> 
> Then, you must build *eveything* for hppa with gcc-4.1 or later.
> 
> Unfortunately, there's an ABI break.  Mixing libraries compiled with
> 4.0 or earlier with libraries compiled with 4.1 or later is just going
> to cause unnecessary problems.   3.3 uses libstdc++.so.5, so you
> avoid the double libgcc_s problem building GMP.  However, you still
> have the ABI change affecting the passing and return of complex types.
> 
> At a fundamental level, libstdc++.so.6, libgfortran.so.1.0.0 and any
> other gcc libraries built with 4.1 or later need glibc built with 4.1
> to function correctly because of the various complex functions in
> the math library.
> 
> I think there's a dynamic loader bug here as well.  I'm just
> guessing but I think the double libgcc_s problem causes a problem
> with the handling of .eh_frame data.


Ok, coming back to the question of the system compiler on hppa for
etch. Assuming that hppa does want to do that:

- is glibc buildable with gcc-4.1 on hppa?
- libstdc++6 would need to conflict with libgcc2, which seems to be
  doable, but then rules out g++-3.4 and g++-4.0 as a fallback
  solution, where g++-4.1 fails.
- libgfortran did have a soname change, so nothing needs to be done.
- is libffi hit by the ABI change as well?

	Matthias
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> Ok, coming back to the question of the system compiler on hppa for
> etch. Assuming that hppa does want to do that:
> 
> - is glibc buildable with gcc-4.1 on hppa?

As far as I know, there's no new problems using 4.1 instead of 4.0.  See
http://lists.parisc-linux.org/pipermail/parisc-linux/2006-April/028894.html
and test results for a gcc 4.2.0 build using this glibc build
http://lists.parisc-linux.org/pipermail/parisc-linux/2006-April/028918.html

> - libstdc++6 would need to conflict with libgcc2, which seems to be
>   doable, but then rules out g++-3.4 and g++-4.0 as a fallback
>   solution, where g++-4.1 fails.

True.

> - is libffi hit by the ABI change as well?

No.  It's not affected because it doesn't support complex types.

I have one libffi fix that's not yet in 4.2.0 that fixes the remaining
Java testsuite failures.  I haven't tested a backport to 4.1.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> > I also suggest using an ordered store for the unlock operation.  This
> > doesn't cost anything and may help to ensure that the order of memory
> > accesses as seen by another processor occur in the expected sequence.
> 
> I've had it drilled into my head that all parisc implmentations
> have strongly ordered memory subsystems. John Marvin (jsm) has
> stated that more than a few times on this list. So "ordered store"
> is the same as a regular store.

Yes, I know this has been said and I've seen it in documents.
However, HP-UX 11i uses lots of "ordered" stores and one is never
quite sure about the currency of information in documentation.

> > It all comes down to this crucial bit of code in the ldcw description:
> 
> I'd rather have someone like Jerry Huck or someone in his experience
> comment on this before we go down this path.  I'll try to find
> someone to consult with this week.

That would be great and I think help to clear up our questions.

> > It may be this is only reliable on fully coherent systems.  While
> > the N-class is classified as a UMA machine, it has two system buses
> > separated by a memory controller.  Each system bus can handle four
> > processors with L1 and L2 cache.
> 
> AFAIK, N-class has no L2 cache.

However, the rp7400 and rp7420 certainly do.  See
<http://www.ccns.pl/zasoby/13/rp7400techwp5.pdf>.  The rp7420
appears to have 32MB or 64MB of L2 per processor module.

> But it's worse than you think.
> N-class has two _Merced_ busses connected to the memory controller. 
> Each Processor is connected via a double pumped Runway Bus to "Dew"
> which acts as a "bridge" to one of the Merced Busses.
> 
> [ Digression - certain document says:
> 	In PA-RISC, code fetches are non-coherent, such that PCX-W doesn't
> 	even supply Vindex bits that would allow the code fetches to be
> 	coherent.
> ]

Because of this, if you want to execute instructions on the stack,
you have to flush the lines from both the instruction and data cache,
and do a sync before transferring to the code on the stack.

I just think that in machines with multiple data caches, we have to
be careful about the coherence of the data in these caches.  You have
pointed out that I-cache code fetches are non-coherent.  The L2 caches
in the rp7420 are combined.  The logic could provide different behavior
for I and D accesses, then again it might not.

If the hardware on all PA-RISC machines guarantees full coherence
of the D-cache on all machines except the V class, then my concern
is misplaced.  In that case, coherent_system should be 1 and the
",co" completer should have no effect on the semaphore operation,
other than to reduce the alignment requirement on PA 2.0 machines.
This would also imply that the store byte operation shown in the
semaphore paper doesn't improve spinlock performance.

Are there any PA 2.0 machines for which the value of coherent_system
is 0?  If so, which ones?

Dave
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On Tue, May 02, 2006 at 11:10:51AM -0400, John David Anglin wrote:
> Are there any PA 2.0 machines for which the value of coherent_system
> is 0?  If so, which ones?
>

I'll cook a patch which dumps more cache info.

struct pdc_cache_cf {           /* for PDC_CACHE  (I/D-caches) */
	[...]
                cc_cst  : 3,    /* 0 = incoherent D-cache, 1=coherent D-cache */
	[...]
};

Should tell us what we need to know. 
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> On Tue, May 02, 2006 at 11:10:51AM -0400, John David Anglin wrote:
> > Are there any PA 2.0 machines for which the value of coherent_system
> > is 0?  If so, which ones?
> >
> 
> I'll cook a patch which dumps more cache info.
> 
> struct pdc_cache_cf {           /* for PDC_CACHE  (I/D-caches) */
> 	[...]
>                 cc_cst  : 3,    /* 0 = incoherent D-cache, 1=coherent D-cache */
> 	[...]
> };
> 
> Should tell us what we need to know. 

Excellent.  Could this go into show_cache_info() so that
"cat /proc/cpuinfo" will show more cache data?  There's also
some stuff in the cache init routine that doesn't print
because of "#if 0".

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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Matthias Klose wrote:
> [should we drop parisc-linux?]
> 
> John David Anglin writes:
>>> Er, no; we're talking about official Debian packages here, and the
>>> libstdc++.so.6 in Debian is now from gcc-4.1.  The problem is precisely that
>>> GMP *is* being built using gcc-4.0, but libstdc++ is from gcc-4.1, resulting
>>> in the double libgcc_s problem.
>> Then, you must build *eveything* for hppa with gcc-4.1 or later.
>>
>> Unfortunately, there's an ABI break.  Mixing libraries compiled with
>> 4.0 or earlier with libraries compiled with 4.1 or later is just going
>> to cause unnecessary problems.   3.3 uses libstdc++.so.5, so you
>> avoid the double libgcc_s problem building GMP.  However, you still
>> have the ABI change affecting the passing and return of complex types.
>>
>> At a fundamental level, libstdc++.so.6, libgfortran.so.1.0.0 and any
>> other gcc libraries built with 4.1 or later need glibc built with 4.1
>> to function correctly because of the various complex functions in
>> the math library.
>>
>> I think there's a dynamic loader bug here as well.  I'm just
>> guessing but I think the double libgcc_s problem causes a problem
>> with the handling of .eh_frame data.
> 
> 
> Ok, coming back to the question of the system compiler on hppa for
> etch. Assuming that hppa does want to do that:
> 
> - is glibc buildable with gcc-4.1 on hppa?

Yes, and it seems to works nicely. People who want to try can fetch .deb 
from http://people.debian.org/~aurel32/hppa/

-- 
   .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
  : :' :  Debian developer           | Electrical Engineer
  `. `'   aurel32@debian.org         | aurelien@aurel32.net
    `-    people.debian.org/~aurel32 | www.aurel32.net
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> mmm, this seems to be a key;
> this morming (to me), I rebuild 2.6.17-rc3-pa3 + your patch the 64bit kernel on:
>     1/ the n4k + ulimit -v 524288 -> compile time nornal 
> 
>     2/ the b2k (default ulimit -v being ulimited) ->  page_alloc.c compilation 
>        very long (even thought this only have 256Mb?)
> 
> > This is on a machine with 1 GB.  I had found that the VM system
> > could thrash and the system crash when it tried to allocate about
> > 1 GB.

I think this is a UP problem.  When too much VM gets allocated
to one process, it blocks some userspace kernel support.  The
following assembler file was where I first noticed the problem:

	.data
foo:
	.block -1

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:23662

> > mmm, this seems to be a key;
> > this morming (to me), I rebuild 2.6.17-rc3-pa3 + your patch the 64bit=

kernel on:
> >     1/ the n4k + ulimit -v 524288 -> compile time nornal 
> > 
appologies my mistake: it wasn't the same config (i erronioulsy build a s=
mp
kernel):
## to build 64bit up kernel

# sh  ../TstPgAlloc
+ rm mm/page_alloc.o mm/.page_alloc.o.d
rm: cannot remove `mm/.page_alloc.o.d': No such file or directory
+ hppa64-linux-gnu-gcc-4.1 --save-temps -Wp,-MD,mm/.page_alloc.o.d -nostd=
inc
-isystem /usr/lib/gcc/hppa64-linux-gnu/4.1.1/include -D__KERNEL__ -Iinclu=
de
-Iinclude2 -I/usr/src/linux-2.6.17-rc3-pa3/include -include
include/linux/autoconf.h -I/usr/src/linux-2.6.17-rc3-pa3/mm -Imm -Wall -W=
undef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -O2
-fomit-frame-pointer -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=3D2.0 -mschedule=3D8000
-Wdeclaration-after-statement -Wno-pointer-sign '-DKBUILD_STR(s)=3D#s'
'-DKBUILD_BASENAME=3DKBUILD_STR(page_alloc)'
'-DKBUILD_MODNAME=3DKBUILD_STR(page_alloc)' -c -o mm/page_alloc.o
/usr/src/linux-2.6.17-rc3-pa3/mm/page_alloc.c
hppa64-linux-gnu-gcc-4.1: warning: -pipe ignored because -save-temps spec=
ified

real    64m56.040s
user    63m33.975s
sys     0m0.811s

# ulimit -v 524288
root@patst006:/usr/src/linux-2.6-pa-n4kup-t# sh  ../TstPgAlloc
+ rm mm/page_alloc.o mm/.page_alloc.o.d
+ hppa64-linux-gnu-gcc-4.1 --save-temps -Wp,-MD,mm/.page_alloc.o.d -nostd=
inc
-isystem /usr/lib/gcc/hppa64-linux-gnu/4.1.1/include -D__KERNEL__ -Iinclu=
de
-Iinclude2 -I/usr/src/linux-2.6.17-rc3-pa3/include -include
include/linux/autoconf.h -I/usr/src/linux-2.6.17-rc3-pa3/mm -Imm -Wall -W=
undef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -O2
-fomit-frame-pointer -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=3D2.0 -mschedule=3D8000
-Wdeclaration-after-statement -Wno-pointer-sign '-DKBUILD_STR(s)=3D#s'
'-DKBUILD_BASENAME=3DKBUILD_STR(page_alloc)'
'-DKBUILD_MODNAME=3DKBUILD_STR(page_alloc)' -c -o mm/page_alloc.o
/usr/src/linux-2.6.17-rc3-pa3/mm/page_alloc.c
hppa64-linux-gnu-gcc-4.1: warning: -pipe ignored because -save-temps spec=
ified

real    64m52.295s
user    63m31.826s
sys     0m0.669s

## to build 64bit smp kernel

# ulimit -v unlimited
# sh  ../TstPgAlloc
+ rm mm/page_alloc.o mm/.page_alloc.o.d
+ hppa64-linux-gnu-gcc-4.1 --save-temps -Wp,-MD,mm/.page_alloc.o.d -nostd=
inc
-isystem /usr/lib/gcc/hppa64-linux-gnu/4.1.1/include -D__KERNEL__ -Iinclu=
de
-Iinclude2 -I/usr/src/linux-2.6.17-rc3-pa3/include -include
include/linux/autoconf.h -I/usr/src/linux-2.6.17-rc3-pa3/mm -Imm -Wall -W=
undef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -O2
-fomit-frame-pointer -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=3D2.0 -mschedule=3D8000
-Wdeclaration-after-statement -Wno-pointer-sign '-DKBUILD_STR(s)=3D#s'
'-DKBUILD_BASENAME=3DKBUILD_STR(page_alloc)'
'-DKBUILD_MODNAME=3DKBUILD_STR(page_alloc)' -c -o mm/page_alloc.o
/usr/src/linux-2.6.17-rc3-pa3/mm/page_alloc.c
hppa64-linux-gnu-gcc-4.1: warning: -pipe ignored because -save-temps spec=
ified

real    0m9.340s
user    0m8.944s
sys     0m0.308s

# ulimit -v 524288
root@patst006:/usr/src/linux-2.6-pa-n4kmp-t# sh  ../TstPgAlloc
+ rm mm/page_alloc.o mm/.page_alloc.o.d
+ hppa64-linux-gnu-gcc-4.1 --save-temps -Wp,-MD,mm/.page_alloc.o.d -nostd=
inc
-isystem /usr/lib/gcc/hppa64-linux-gnu/4.1.1/include -D__KERNEL__ -Iinclu=
de
-Iinclude2 -I/usr/src/linux-2.6.17-rc3-pa3/include -include
include/linux/autoconf.h -I/usr/src/linux-2.6.17-rc3-pa3/mm -Imm -Wall -W=
undef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -O2
-fomit-frame-pointer -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=3D2.0 -mschedule=3D8000
-Wdeclaration-after-statement -Wno-pointer-sign '-DKBUILD_STR(s)=3D#s'
'-DKBUILD_BASENAME=3DKBUILD_STR(page_alloc)'
'-DKBUILD_MODNAME=3DKBUILD_STR(page_alloc)' -c -o mm/page_alloc.o
/usr/src/linux-2.6.17-rc3-pa3/mm/page_alloc.c
hppa64-linux-gnu-gcc-4.1: warning: -pipe ignored because -save-temps spec=
ified

real    0m9.261s
user    0m8.942s
sys     0m0.315s


 
> >     2/ the b2k (default ulimit -v being ulimited) ->  page_alloc.c
compilation 
> >        very long (even thought this only have 256Mb?)
> > 
> > > This is on a machine with 1 GB.  I had found that the VM system
> > > could thrash and the system crash when it tried to allocate about
> > > 1 GB.
> 
> I think this is a UP problem.  When too much VM gets allocated
> to one process, it blocks some userspace kernel support.  The
> following assembler file was where I first noticed the problem:
> 
> 	.data
> foo:
> 	.block -1
> 
Ak ok, will check.

Sorry for confusion,
    Joel=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous de=
venez aujourd'hui Scarlet One grace a un client existant de Scarlet, vous=
 recevez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite su=
r http://www.clubscarlet.be

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Xref: news.gmane.org gmane.linux.ports.parisc:23663

Hello Dave,

I already rebuild and run recent pa kernel with gcc-4.1 but apparently I
missed a strange pb with hppa64: it seems to take abnormaly enormous time=
 to
compile 

  hppa64-linux-gnu-gcc-4.1 -Wp,-MD,mm/.page_alloc.o.d  -nostdinc -isystem=

/usr/lib/gcc/hppa64-linux-gnu/4.1.1/include -D__KERNEL__ -Iinclude -Iincl=
ude2
-I/usr/src/linux-2.6.17-rc3-pa2/include -include include/linux/autoconf.h=

-I/usr/src/linux-2.6.17-rc3-pa2/mm -Imm -Wall -Wundef -Wstrict-prototypes=

-Wno-trigraphs -fno-strict-aliasing -fno-common -O2 -fomit-frame-pointer =
-pipe
-mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-section=
s
-march=3D2.0 -mschedule=3D8000 -Wdeclaration-after-statement -Wno-pointer=
-sign 
-D"KBUILD_STR(s)=3D#s" -D"KBUILD_BASENAME=3DKBUILD_STR(page_alloc)" 
-D"KBUILD_MODNAME=3DKBUILD_STR(page_alloc)" -c -o mm/page_alloc.o
/usr/src/linux-2.6.17-rc3-pa2/mm/page_alloc.c

top showing me:
top - 11:16:03 up 21:14,  5 users,  load average: 1.00, 1.00, 0.94
Tasks:  69 total,   2 running,  67 sleeping,   0 stopped,   0 zombie
Cpu0  : 18.0% us,  3.0% sy,  0.1% ni, 78.8% id,  0.2% wa,  0.0% hi,  0.0%=
 si
Mem:   4115284k total,   825596k used,  3289688k free,    95032k buffers
Swap:   250872k total,        0k used,   250872k free,   520436k cached
Change delay from 1.0 to: 
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  P WCHAN    
COMMAND                                                   
21547 root      25   0 19692  17m 3976 R 97.2  0.4  51:11.32 0 intr_chec =
cc1 
                                                      
 4986 root      16   0  2980 1336 1016 R  2.9  0.0  29:29.88 0 227038604 =
top 
                                                      

# strace -p 21547
write(1, " %r28,63,61,%r31\n\tdepd,z %r25,2,"..., 4096) =3D 4096
write(1, ",120(%r3)\n\tdepd,z %r23,62,63,%r3"..., 4096) =3D 4096
write(1, "37:\n\taddil LT\'.LC12,%r27\n\tcopy %"..., 4096) =3D 4096
mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, =
0) =3D
0x40d2e000
write(1, "pd,z %r28,60,61,%r28\n\tldo 128(%r"..., 4096) =3D 4096
write(1, ",ENTRY_GR=3D18\n\t.ENTRY\n\taddil LT\'n"..., 4096) =3D 4096
write(1, "totalram_pages(%r1),%r28\n\tstd,ma"..., 4096) =3D 4096
brk(0x59b000)                           =3D 0x59b000
brk(0x59a000)                           =3D 0x59a000
brk(0x597000)                           =3D 0x597000
... (pending)

just shows me those few lines after 45min?

I am quite sure it will be completed but I don't know yet how much time i=
t
would require?

Thanks in advance,
    Joel

PS: Dave I will try your patch regarding n4k asap (thanks ;-) )

=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devenez au=
jourd'hui Scarlet One grace a un client existant de Scarlet, vous recevez=
 tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur http:/=
/www.clubscarlet.be

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Xref: news.gmane.org gmane.linux.ports.parisc:23664

> > Suggests that 4.1 has gone wild inlining.  To some extent, inlining
> > depends on the amount of memory present in the build machine.
> > 
> the 64bit build was on the N4k (up kernel) with ram of 4Gb:
> # cat /proc/meminfo
> MemTotal:      4115368 kB

You might see if limiting virtual memory helps.  I have the following
in bash.bashrc:

# limit process virtual memory
ulimit -v 524288

This is on a machine with 1 GB.  I had found that the VM system
could thrash and the system crash when it tried to allocate about
1 GB.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: hppa64-...-gcc-4.1 annoying pb?
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> On Thu, May 04, 2006 at 12:35:32PM -0400, John David Anglin wrote:
> > Suggests that 4.1 has gone wild inlining.  To some extent, inlining
> > depends on the amount of memory present in the build machine.
> >
> 
> This is kind of a ridiculous assumption to make... Is there a way to
> disable it? 

Maybe, but I've seen it before.  With the default inline limits, the
program took more than 24 hours to compile.  With reduced limits, the
time was about 60 seconds.  Given that the complilation actually
succeeded, there's little else that can change compilation time in
such a dramatic manner.  If it's not inlining, there are various
other optimizations that can be disabled (e.g., -fno-loop-optimize).

It possible to get an indication as to where the problem lies by
running cc1 without -quiet.  This shows the elapsed time for each
pass at the end of the compilation.   You can see how to run cc1
for the compilation in question by using the -v option with gcc.

There's various options that change inlining behavior.

  -finline-limit=<number> Limits the size of inlined functions to <number>
  -finline-functions      Integrate simple functions into their callers

Inlining can be turned off using -fno-inline-functions.

The following change the model used for inlining:

  --param max-inline-insns-rtl=<value> The maximum number of instructions for the RTL inliner
  --param min-inline-insns=<value>     The number of instructions in a single functions still eligible to inlining after a lot recursive inlining
  --param max-inline-slope=<value>     The slope of the linear function throttling inlining after the recursive inlining limit has been reached is given by the negative reciprocal value of this parameter
  --param max-inline-insns=<value>     The maximum number of instructions by repeated inlining before gcc starts to throttle inlining
  --param max-inline-insns-auto=<value> The maximum number of instructions when automatically inlining
  --param max-inline-insns-single=<value> The maximum number of instructions in a single function eligible for inlining

In the above, the number of instructions refers to RTL instructions
rather than machine instructions.  The default settings are in the manual.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: linux-2.6 deller (ioremap-changes)
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To: dave@hiauly1.hia.nrc.ca (John David Anglin)
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> Did this bug also affect 32bit kernels?  The reason I ask is I
> had to back out using 2.6.16-pa0 on my c3k.  The most obvious
> symptoms were fsck failures on reboot, iptables error messages
> and unreliable behavior of gnome teminal.

The fsck problem turned out to be the same as reported here:
http://lists.debian.org/debian-kernel/2006/02/msg00153.html.
udev was running out of memory and /dev was getting fully populated.

It might be that the udev package got stuck.  I removed and
reinstalled it.  The hack in the debian bug report also seems
to work.

I believe that the iptables problem can be fixed by a config
update but I haven't test it.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] some starting . of glibc test math filaures ;-)
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Hello all,

After the clone() pb, I continue a bit investigating in broken test.

In summary, here are the math failing test:
/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-float.out
::::::::::::::
testing float (without inline functions)
Failure: Real part of: cacos (inf + NaN i) =3D=3D NaN + inf i plus sign o=
f
zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: cacos (-inf + NaN i) =3D=3D NaN + inf i plus sign =
of
zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: cacos (NaN + inf i) =3D=3D NaN - inf i: Exception =
"Invalid
operation" set
Failure: Real part of: cacos (NaN - inf i) =3D=3D NaN + inf i: Exception =
"Invalid
operation" set
Failure: Real part of: cacos (NaN + NaN i) =3D=3D NaN + NaN i: Exception =
"Invalid
operation" set
Failure: Real part of: ccosh (inf + NaN i) =3D=3D inf + NaN i: Exception =
"Invalid
operation" set
Failure: Real part of: ccosh (-inf + NaN i) =3D=3D inf + NaN i: Exception=
 "Invalid
operation" set
Failure: Real part of: cpow (NaN + NaN i, NaN + NaN i) =3D=3D NaN + NaN i=
:
Exception "Invalid operation" set
Failure: Real part of: csinh (0.0 + NaN i) =3D=3D 0.0 + NaN i plus sign o=
f
zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (-0 + NaN i) =3D=3D 0.0 + NaN i plus sign of=
 zero/inf
not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (inf + NaN i) =3D=3D inf + NaN i plus sign o=
f
zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (-inf + NaN i) =3D=3D inf + NaN i plus sign =
of
zero/inf not specified: Exception "Invalid operation" set

Test suite completed:
2599 test cases plus 2384 tests for exception flags executed.
12 errors occurred.
::::::::::::::
/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-double.out
::::::::::::::
testing double (without inline functions)
Failure: Test: lround (1071930.0008) =3D=3D 1071930
Result:
is: 1071930
should be: 1071930
Failure: Real part of: cacos (inf + NaN i) =3D=3D NaN + inf i plus sign o=
f
zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: cacos (-inf + NaN i) =3D=3D NaN + inf i plus sign =
of
zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: cacos (NaN + inf i) =3D=3D NaN - inf i: Exception =
"Invalid
operation" set
Failure: Real part of: cacos (NaN - inf i) =3D=3D NaN + inf i: Exception =
"Invalid
operation" set
Failure: Real part of: cacos (NaN + NaN i) =3D=3D NaN + NaN i: Exception =
"Invalid
operation" set
Failure: Real part of: ccosh (0.0 + NaN i) =3D=3D NaN + 0.0 i plus sign o=
f
zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: ccosh (-0 + NaN i) =3D=3D NaN + 0.0 i plus sign of=
 zero/inf
not specified: Exception "Invalid operation" set
Failure: Real part of: ccosh (inf + NaN i) =3D=3D inf + NaN i: Exception =
"Invalid
operation" set
Failure: Real part of: ccosh (-inf + NaN i) =3D=3D inf + NaN i: Exception=
 "Invalid
operation" set
Failure: Real part of: cpow (NaN + NaN i, NaN + NaN i) =3D=3D NaN + NaN i=
:
Exception "Invalid operation" set
Failure: Real part of: csinh (0.0 + NaN i) =3D=3D 0.0 + NaN i plus sign o=
f
zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (-0 + NaN i) =3D=3D 0.0 + NaN i plus sign of=
 zero/inf
not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (inf + NaN i) =3D=3D inf + NaN i plus sign o=
f
zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (-inf + NaN i) =3D=3D inf + NaN i plus sign =
of
zero/inf not specified: Exception "Invalid operation" set

Test suite completed:
2624 test cases plus 2399 tests for exception flags executed.
15 errors occurred.
::::::::::::::
/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-idouble.out
::::::::::::::
testing double (inline functions)
Failure: Test: lround (1071930.0008) =3D=3D 1071930
Result:
is: 1071930
should be: 1071930

Test suite completed:
2562 test cases plus 2337 tests for exception flags executed.
1 errors occurred.

=3D=3D=3D=3D<>=3D=3D=3D=3D

The easiest is obviously the last one; I just simplified libm-test.c and =
added
some printf() to read:
/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-idouble-b
testing double (inline functions)
computed: 1071930
expected: 1071930
labs (diff): 0
max_ulp: -214511494
Failure: Test: lround (1071930.0008) =3D=3D 1071930
Result:
is: 1071930
should be: 1071930

Test suite completed:
3 test cases plus 1 tests for exception flags executed.
1 errors occurred.
=3D=3D=3D=3D<>=3D=3D=3D=3D

The results are well ok as mentioned:
Result:
is: 1071930
should be: 1071930

it seems so being just a test pb in:
/* Check that computed and expected values are equal (long int values). *=
/
static void
check_long (const char *test_name, long int computed, long int expected,
long int max_ulp, int xfail, int exceptions)
{
long int diff =3D computed - expected;
printf ("computed: %ld\n", computed);
printf ("expected: %ld\n", expected);
int ok =3D 0;

test_exceptions (test_name, exceptions);
noTests++;
printf ("labs (diff): %ld\n", labs (diff));
printf ("max_ulp: %ld\n", max_ulp);
if (labs (diff) <=3D max_ulp)
ok =3D 1;

if (!ok)
print_ulps (test_name, diff);

if (print_screen (ok, xfail))
{
if (!ok)
printf ("Failure: ");
printf ("Test: %s\n", test_name);
printf ("Result:\n");
printf (" is: %ld\n", computed);
printf (" should be: %ld\n", expected);
}

update_stats (ok, xfail);
fpstack_test (test_name);
}
[snip]

while the call is:
[snip]
check_long ("lround (1071930.0008) =3D=3D 1071930", FUNC(lround)
(1071930.0008), 1071930, DELTA1247, 0, 0);
[snip]

DELTA1247 being define in math/libm-test-ulps.h as:
#define DELTA1247 CHOOSE(0, -214511494, 0, 0, -214511494, 0) /* lround
(1071930.0008) =3D=3D 1071930 */

and CHOOSE() in math/test-idouble.c:
#define
CHOOSE(Clongdouble,Cdouble,Cfloat,Cinlinelongdouble,Cinlinedouble,Cinline=
float)
Cinlinedouble

and effectively check_long() is well precompiled:
(.i file)
[snip]
check_long ("lround (1071930.0008) =3D=3D 1071930", lround (1071930.0008)=
,
1071930, -214511494, 0, 0);
[snip]

afaik, as math/libm-test-ulps.h, is genetated by a perl script driven by
../sysdeps/hppa/fpu/libm-test-ulps file. And it seems that hppa is the on=
ly
one to specify:
[snip]
# lround 
Test "lround (1071930.0008) =3D=3D 1071930":
double: -214511494
idouble: -214511494
[snip]

If somebody still remember why, that could help me a bit.

Thanks in advance,
Joel=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devene=
z aujourd'hui Scarlet One grace a un client existant de Scarlet, vous rec=
evez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur ht=
tp://www.clubscarlet.be

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Subject: [parisc-linux] Re: some starting . of glibc test math filaures ;-)
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Xref: news.gmane.org gmane.linux.ports.parisc:23668

On 5/9/06, Joel Soete <soete.joel@tiscali.be> wrote:
> > > If somebody still remember why, that could help me a bit.
> >
> > Probably the maxulps data on hppa is out of date. We've fixed one or tw=
o
> > cases from time to time, but there are probably other problems.
> >
> > Pls send a patch to fix this case.
> >
> Obvioulsy ;-)
>

Where is your ChangeLog?!  ;-)

I'm the hppa libc-ports maintainer. If you send me a well formed
ChangeLog and patch I can do the checkin.

Cheers,
Carlos.
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Subject: [parisc-linux] Just a question about a sba_iommu.c warning with gcc
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Xref: news.gmane.org gmane.linux.ports.parisc:23669

Hello all,

Compiling kernel 2.6.17-rc3-pa3 with gcc-4.1 64bits, I read in log:

hppa64-linux-gnu-gcc-4.1 -Wp,-MD,drivers/parisc/.sba_iommu.o.d  -nostdinc=

-isystem /usr/lib/gcc/hppa64-linux-gnu/4.1.1/include -D_
_KERNEL__ -Iinclude -Iinclude2 -I/usr/src/linux-2.6.17-rc3-pa3/include
-include include/linux/autoconf.h -I/usr/src/linux-2.6.17-rc3
-pa3/drivers/parisc -Idrivers/parisc -Wall -Wundef -Wstrict-prototypes
-Wno-trigraphs -fno-strict-aliasing -fno-common -O2 -fomit-fr
ame-pointer -pipe -mno-space-regs -mfast-indirect-calls -mdisable-fpregs
-ffunction-sections -march=3D2.0 -mschedule=3D8000 -Wdeclaratio
n-after-statement -Wno-pointer-sign  -D"KBUILD_STR(s)=3D#s"
-D"KBUILD_BASENAME=3DKBUILD_STR(sba_iommu)"  -D"KBUILD_MODNAME=3DKBUILD_S=
TR(sb
a_iommu)" -c -o drivers/parisc/sba_iommu.o
/usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c
/usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c: In function
'sba_unmap_single':
/usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1000: warning: v=
alue
computed is not used
/usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c: In function
'sba_hw_init':
/usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1767: warning:
initialization makes integer from pointer without a cast
/usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1782: warning:
passing argument 1 of '__raw_readq' makes pointer from integ
er without a cast
/usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1782: warning:
passing argument 1 of '__raw_readq' makes pointer from integ
er without a cast
/usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1782: warning:
passing argument 1 of '__raw_readq' makes pointer from integ
er without a cast
/usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1784: warning:
passing argument 2 of '__raw_writeq' makes pointer from inte
ger without a cast
/usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1790: warning:
passing argument 2 of '__raw_writeq' makes pointer from inte
ger without a cast
/usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1794: warning: v=
alue
computed is not used 

The most interesting to me being "warning: value computed is not used";

looking into code this warning seems to make sense:
[snip]
        if (++(ioc->saved_cnt) >=3D DELAYED_RESOURCE_CNT) {
                int cnt =3D ioc->saved_cnt;
                while (cnt--) {
                        sba_free_range(ioc, d->iova, d->size);
                        d--;
                }
                ioc->saved_cnt =3D 0;

/* l 1000 */    READ_REG(ioc->ioc_hpa+IOC_PCOM);        /* flush purges *=
/
        }
[snip]
                        /*
                        ** Make sure the box crashes on rope errors.
                        */
                        WRITE_REG(HF_ENABLE, ioc_hpa + ROPE0_CTL + j);
                }

                /* flush out the last writes */
/* l 1794 */    READ_REG(sba_dev->ioc[i].ioc_hpa + ROPE7_CTL);

                DBG_INIT("      ioc[%d] ROPE_CFG 0x%Lx  ROPE_DBG 0x%Lx\n"=
,
[snip]

The precompile showing finaly for the line 1000:
(__builtin_constant_p((__u64)((__u64)(__le64)(__raw_readq(ioc->ioc_hpa+0x=
310))))
? \
    ({ 
      __u64 __x =3D ((( __u64)(__le64)(__raw_readq(ioc->ioc_hpa+0x310))))=
;
      ((__u64)( (__u64)(((__u64)(__x) & (__u64)0x00000000000000ffULL) << =
56) |
       (__u64)(((__u64)(__x) & (__u64)0x000000000000ff00ULL) << 40) | 
       (__u64)(((__u64)(__x) & (__u64)0x0000000000ff0000ULL) << 24) | 
       (__u64)(((__u64)(__x) & (__u64)0x00000000ff000000ULL) << 8) | 
       (__u64)(((__u64)(__x) & (__u64)0x000000ff00000000ULL) >> 8) | 
       (__u64)(((__u64)(__x) & (__u64)0x0000ff0000000000ULL) >> 24) | 
       (__u64)(((__u64)(__x) & (__u64)0x00ff000000000000ULL) >> 40) | 
       (__u64)(((__u64)(__x) & (__u64)0xff00000000000000ULL) >> 56) ));
     }) :
     __fswab64((( __u64)(__le64)(__raw_readq(ioc->ioc_hpa+0x310)))));

so may be is it not a reading only because of:
# 51 "include2/asm/byteorder.h"
static __inline__ __attribute__((always_inline)) __attribute__((__const__=
))
__u64 ___arch__swab64(__u64 x) {
 __u64 temp;
 __asm__("permh,3210 %0, %0\n\t"
  "hshl %0, 8, %1\n\t"
  "hshr,u %0, 8, %0\n\t"
  "or %1, %0, %0"
  : "=3Dr" (x), "=3D&r" (temp)
  : "0" (x));
 return x;
}

(which imho clobber x i.e. 'ioc->ioc_hpa+0x310'?)

Dave, is there any reason why even compilation options are the same:
  hppa64-linux-gnu-gcc-4.1 --save-temps \
        -Wp,-MD,drivers/parisc/.sba_iommu.o.d  \
        -nostdinc \
        -isystem /usr/lib/gcc/hppa64-linux-gnu/4.1.1/include \
        -D__KERNEL__ \
        -Iinclude \
        -Iinclude2 \
        -I/usr/src/linux-2.6.17-rc3-pa3/include \
        -include include/linux/autoconf.h \
        -I/usr/src/linux-2.6.17-rc3-pa3/drivers/parisc \
        -Idrivers/parisc \
        -Wall \
        -Wundef \
        -Wstrict-prototypes \
        -Wno-trigraphs \
        -fno-strict-aliasing \
        -fno-common \
        -O2 \
        -fomit-frame-pointer \
        -pipe \
        -mno-space-regs \
        -mfast-indirect-calls \
        -mdisable-fpregs \
        -ffunction-sections \  
        -march=3D2.0 \
        -mschedule=3D8000 \
        -Wdeclaration-after-statement \
        -Wno-pointer-sign  \
        -D"KBUILD_STR(s)=3D#s" \
        -D"KBUILD_BASENAME=3DKBUILD_STR(sba_iommu)"  \
        -D"KBUILD_MODNAME=3DKBUILD_STR(sba_iommu)" \
        -c \
        -o drivers/parisc/sba_iommu.o \
        /usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c

  gcc-4.1 --save-temps \
        -Wp,-MD,drivers/parisc/.sba_iommu.o.d  \
        -nostdinc \
        -isystem /usr/lib/gcc/hppa-linux-gnu/4.1.1/include \
        -D__KERNEL__ \
        -Iinclude \
        -Iinclude2 \
        -I/CAD/linux-2.6.17-rc3-pa3/include \
        -include include/linux/autoconf.h \
        -I/CAD/linux-2.6.17-rc3-pa3/drivers/parisc \
        -Idrivers/parisc \
        -Wall \
        -Wundef \
        -Wstrict-prototypes \
        -Wno-trigraphs \
        -fno-strict-aliasing \
        -fno-common \
        -O2 \
        -fomit-frame-pointer \
        -pipe \
        -mno-space-regs \
        -mfast-indirect-calls \
        -mdisable-fpregs \
        -ffunction-sections \
        -march=3D2.0 \
        -mschedule=3D8000 \
        -Wdeclaration-after-statement \
        -Wno-pointer-sign  \
        -D"KBUILD_STR(s)=3D#s" \
        -D"KBUILD_BASENAME=3DKBUILD_STR(sba_iommu)"  \
        -D"KBUILD_MODNAME=3DKBUILD_STR(sba_iommu)" \
        -c \
        -o drivers/parisc/.tmp_sba_iommu.o \
        /CAD/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c

this warning is not the same for 32bit kernel:
  gcc-4.1 -Wp,-MD,drivers/parisc/.sba_iommu.o.d  -nostdinc -isystem
/usr/lib/gcc/hppa-linux-gnu/4.1.1/include -D__KERNEL__ -Iinclude
 -Iinclude2 -I/CAD/linux-2.6.17-rc3-pa3/include -include
include/linux/autoconf.h -I/CAD/linux-2.6.17-rc3-pa3/drivers/parisc -Idri=
ve
rs/parisc -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -O2 -fomit-frame-pointer -pipe -mno-spac=

e-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=3D=
2.0
-mschedule=3D8000 -Wdeclaration-after-statement -Wno-poin
ter-sign  -D"KBUILD_STR(s)=3D#s" -D"KBUILD_BASENAME=3DKBUILD_STR(sba_iomm=
u)" 
-D"KBUILD_MODNAME=3DKBUILD_STR(sba_iommu)" -c -o drivers/par
isc/.tmp_sba_iommu.o /CAD/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c=

/CAD/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c: In function
\xe2\x80\x98sba_hw_init\xe2\x80\x99:
/CAD/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1767: warning:
initialization makes integer from pointer without a cast
/CAD/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1782: warning: passi=
ng
argument 1 of \xe2\x80\x98__raw_readl\xe2\x80\x99 makes 
pointer from integer without a cast
/CAD/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1782: warning: passi=
ng
argument 1 of \xe2\x80\x98__raw_readl\xe2\x80\x99 makes 
pointer from integer without a cast
/CAD/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1782: warning: passi=
ng
argument 1 of \xe2\x80\x98__raw_readl\xe2\x80\x99 makes 
pointer from integer without a cast
/CAD/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1784: warning: passi=
ng
argument 2 of \xe2\x80\x98__raw_writel\xe2\x80\x99 makes
 pointer from integer without a cast
/CAD/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1790: warning: passi=
ng
argument 2 of \xe2\x80\x98__raw_writel\xe2\x80\x99 makes
 pointer from integer without a cast

while compiler release are the same:
on n4k:
ii  gcc-4.1-hppa64              4.1.0-2                     The GNU C com=
piler
(cross compiler for hppa64)

on b2k:
ii  gcc-4.1                     4.1.0-2                     The GNU C com=
piler

as well as the kernel sources.

Thanks for advise,
    Joel=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous de=
venez aujourd'hui Scarlet One grace a un client existant de Scarlet, vous=
 recevez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite su=
r http://www.clubscarlet.be

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Subject: [parisc-linux] Re: some starting . of glibc test math filaures ;-)
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> On 5/9/06, Joel Soete <soete.joel@tiscali.be> wrote:
> > > > If somebody still remember why, that could help me a bit.
> > >
> > > Probably the maxulps data on hppa is out of date. We've fixed one o=
r two
> > > cases from time to time, but there are probably other problems.
> > >
> > > Pls send a patch to fix this case.
> > >
> > Obvioulsy ;-)
> >
> 
> Where is your ChangeLog?!  ;-)
> 
> I'm the hppa libc-ports maintainer. If you send me a well formed
> ChangeLog and patch I can do the checkin.
> 
Appologies, I am not in use to manage project ;</ but I fully agree that
changelogs and comments are even (if not more) important then code.

I just hope that the following will be convinen to you (I let you as
maintainer ;-)):
--- glibc-ports/ChangeLog.hppa.Orig     2006-05-10 09:25:43.000000000 +02=
00
+++ glibc-ports/ChangeLog.hppa  2006-05-10 09:32:14.000000000 +0200
@@ -1,3 +1,7 @@
+2006-05-10  Carlos O'Donell  <carlos@systemhalted.org>
+
+       * sysdeps/hppa/fpu/libm-test-ulps: remove outdated lround maxulps=
.
+
 2006-04-27  Carlos O'Donell  <carlos@systemhalted.org>
 
        * sysdeps/unix/sysv/linux/hppa/bits/fcntl.h: Include uio.h, and
--- glibc-ports/sysdeps/hppa/fpu/libm-test-ulps.Orig    2006-05-10 
9:25:15.000000000 +0200
+++ glibc-ports/sysdeps/hppa/fpu/libm-test-ulps 2006-05-10 09:26:56.00000=
0000
+0200
@@ -479,11 +479,6 @@
 float: 1
 ifloat: 1
 
-# lround
-Test "lround (1071930.0008) =3D=3D 1071930":
-double: -214511494
-idouble: -214511494

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Subject: Re: [parisc-linux] Just a question about a sba_iommu.c warning with
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On Wed, May 10, 2006 at 02:08:39PM +0200, Joel Soete wrote:
> /usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1000: warning: value
> computed is not used

lack of cast to (void)

> /usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1767: warning:
> initialization makes integer from pointer without a cast

ioc_hpa should be void __iomem *

> /usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1782: warning:
> passing argument 1 of '__raw_readq' makes pointer from integ
> er without a cast
> /usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1784: warning:
> passing argument 2 of '__raw_writeq' makes pointer from inte
> ger without a cast

rope_cfg and cfg_val should be void __iomem *

> /usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1790: warning:
> passing argument 2 of '__raw_writeq' makes pointer from inte
> ger without a cast

ioc_hpa should be void __iomem *

> /usr/src/linux-2.6.17-rc3-pa3/drivers/parisc/sba_iommu.c:1794: warning: value
> computed is not used
>

lack of cast to (void) 
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On Thu, May 11, 2006 at 02:16:39AM -0600, Matthew Wilcox wrote:
> The void casts are just bogus.  Please take them out.

"bogus" isn't the word I would use.
I agree with Kyle that we don't want that behavior for every function.
But I want the compiler to tell me when we throw away return values
we normally use.

I'll remove them since your last commit makes the casts superfluous.
And I don't recall why I opencoded READ_REG in the first place. :(

thanks,
grant
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 Matthew Wilcox <matthew@wil.cx>
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On Thu, May 11, 2006 at 11:25:17AM -0600, Grant Grundler wrote:
> "bogus" isn't the word I would use.
> I agree with Kyle that we don't want that behavior for every function.
> But I want the compiler to tell me when we throw away return values
> we normally use.
> 
> I'll remove them since your last commit makes the casts superfluous.
> And I don't recall why I opencoded READ_REG in the first place. :(
>

I think the reason we were seeing the warnings, and weren't with, for
example, printk(), is that le{32,64}_to_cpu is a macro and not a function.

And so we were actually discarding an assignment (statement with no
effect in general...) rather than just discarding a return value.


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Hi pa,

I've been writing a few optimized asm bits for ffmpeg, using MAX2
insns and taking advantage of the fact that pa2.0 implements 64bit
wide registers.

NOTE: i'm not using a 64bit address space at all. I'm just taking
advantage of the fact that GRs can hold 64bit, as per architecture
design. MAX2 insns need the full 64bit width, for instance.

Yet, Randolph pointed out that it's likely that upon context switch,
the upper 32bit of the registers i'm using would be thrown away.

Two options from there:
1) we claim what I'm trying to do should not be done on parisc-linux
=3D> using ldd/std, MAX2 and other insns that rely on 64bit regs should
be prohibited by binutils for non-wide code (currently gcc/binutils
happily build my code with -mpa-risc-2-0, which generates level 2.0
non wide code)

2) we claim what I'm trying to do should be possible on parisc-linux
=3D> we need to fix context switching in 32bit kernels.

Comments?

T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On 5/13/06, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> Hi pa,
>
> I've been writing a few optimized asm bits for ffmpeg, using MAX2
> insns and taking advantage of the fact that pa2.0 implements 64bit
> wide registers.
>
> NOTE: i'm not using a 64bit address space at all. I'm just taking
> advantage of the fact that GRs can hold 64bit, as per architecture
> design. MAX2 insns need the full 64bit width, for instance.
>
> Yet, Randolph pointed out that it's likely that upon context switch,
> the upper 32bit of the registers i'm using would be thrown away.
>
> Two options from there:
> 1) we claim what I'm trying to do should not be done on parisc-linux
> =3D> using ldd/std, MAX2 and other insns that rely on 64bit regs should
> be prohibited by binutils for non-wide code (currently gcc/binutils
> happily build my code with -mpa-risc-2-0, which generates level 2.0
> non wide code)

I take that back as I can see a reason to use them in userspace when
running a 64bit kernel, even though the generated code wouldn't work
with a 32bit kernel.
Yet, not being to use them (in particular MAX2) with a 32bit kernel on
pa2.0 cpus is quite sad, as we encourage our users to run 32bit
kernels on pa2.0 machines that can...

> 2) we claim what I'm trying to do should be possible on parisc-linux
> =3D> we need to fix context switching in 32bit kernels.
>
> Comments?

T-Bone
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On Sat, 2006-05-13 at 17:41 +0200, Thibaut VARENE wrote:
> 1) we claim what I'm trying to do should not be done on parisc-linux
> => using ldd/std, MAX2 and other insns that rely on 64bit regs should
> be prohibited by binutils for non-wide code (currently gcc/binutils
> happily build my code with -mpa-risc-2-0, which generates level 2.0
> non wide code)

I really don't think doubling the size of our register file on all tasks
and doubling the size of the saved registers on stack for interruptions
is really a sensible thing to do just so some multi-media extension can
be made to work.

> 2) we claim what I'm trying to do should be possible on parisc-linux
> => we need to fix context switching in 32bit kernels.
> 
> Comments?

There is a third possibility, and that's to execute the instruction in
the kernel where there wouldn't be a danger of context switches, where
the return values could be packaged properly and where it could be
emulated if necessary.  It would be nice to use a vDSO for this, but I
suspect Carlos' lightweight semaphore infrastructure can be pressed into
service for this.

James


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Subject: Re: [parisc-linux] [RFC] using 64bit wide registers with 32bit kernel
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> Two options from there:
> 1) we claim what I'm trying to do should not be done on parisc-linux
> => using ldd/std, MAX2 and other insns that rely on 64bit regs should
> be prohibited by binutils for non-wide code (currently gcc/binutils
> happily build my code with -mpa-risc-2-0, which generates level 2.0
> non wide code)

Well, hpux supports using 64-bit registers in non-wide code, so
I don't particularly like the idea that code generation changes
between linux and hpux.  64-bit registers are a PA 2.0 feature
and their use is independent of whether or not the processor is
in wide mode.

> 2) we claim what I'm trying to do should be possible on parisc-linux
> => we need to fix context switching in 32bit kernels.

I believe that's the correct approach.  The context state needs to
be updated for 64-bit userspace anyway.  HP-UX has some horrible
macros like GetSSReg for accessing register values in context data
(see pa/save_state.h).

config.guess for the distinguishes narrow and wide hpux kernels
(hppa2.0, hppa2.0n and hppa2.0w).  The hppa2.0 and hppa2.0n kernels
are narrow and don't support 64-bit context information.  As far
as I know, wide kernels support 64-bit context information for
the 32-bit runtime.

The GMP library is one bit of code that attempts to make use of this
capability.  It's a problem for GCC as there's no way to describe that
a register is partially call clobbered.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] B180 boot problem
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I have a B180 machine which was loaded with a version of linux back in 1993.
I'm trying to start fresh and tried to boot the 3.1r2 cd 
"debian-hppa-binary-1.iso" to install.
I consistently get a mangled message just above the tux on the boot 
screen which says something to the effect:

Kernel panic: Kernel Fault4/0xb0cr31:10....., IRQ sharing enabled

I have tried various burns at various speed of the same cd with the 
same results.
I have interacted with the IPL and tried setting some variations on a 
"sensible" set of parameters to pass to the kernel.
When I clear ALL the entries to be passed to the kernel, I get an 
unable to mount root message so I started adding some root and initrd 
items to the parameters.
I just can't find the correct parameters to allow the box to boot!

What is/are the correct set of parameters to be passed to the kernel?

Regards, Herb


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John David Anglin wrote:

> 
> I don't believe that it's impossible to support the full register width
> with a 32bit (narrow) kernel.  However, hpux to my knowledge doesn't
> support 64-bit registers when using a narrow kernel.  I think this
> reflects the historical development of hpux.  The first PA 2.0 kernels
> were narrow and based on the 32-bit PA 1.1 implementation.  Wide kernels
> were introduced with HP-UX 11.
> 

You are correct.

If you are running a 32 bit version of hpux on a 64 bit machine then the 
upper halfs of registers are not saved. I will note that there are not 
many (and may no longer be any) 64 bit machines that HP supports running 
a 32 bit kernel on.

If you are running a 64 bit version of hpux then the upper halfs of 
registers are saved during context switches, even if you are running a 
32 bit app. It gets interesting in a signal handler, since the registers 
are saved in the signal context twice, i.e. the 32 bit lower halfs are 
saved in one place (for backwards object compatibility), and then the 64 
bit versions are saved in another. I forget all the details about what 
happens if you want to change the saved value in the signal context.

John
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Subject: Re: [parisc-linux] [RFC] using 64bit wide registers with 32bit kernel
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On Sat, May 13, 2006 at 07:35:48PM -0400, John David Anglin wrote:
> > Are you trying to say that userspace code shouldn't be using the full
> > registers width when running a 32bit (narrow) kernel?
> 
> I don't believe that it's impossible to support the full register width
> with a 32bit (narrow) kernel.  However, hpux to my knowledge doesn't
> support 64-bit registers when using a narrow kernel.

I believe later 10.20 updates/patches to support PA2.0 processors did
in fact support saving/restoring 64-bits. But it's been a _long_
time since I've look at that.

> I think this
> reflects the historical development of hpux.  The first PA 2.0 kernels
> were narrow and based on the 32-bit PA 1.1 implementation.

Correct. Mostly in the form of 10.20 patches.

> Wide kernels were introduced with HP-UX 11.

Trivia: 10.30 was a T600/customer specific release that
provided 64-bit support before 11.00 was ready.

...
> Personally, I think the wide register support is most important
> when running a 64-bit kernel and that's the place it would be
> easiest to implement.  I can see that there are situations where
> it would be nice to use 64-bit registers on a narrow kernel but
> this would change the size of register files, the context passed
> to signal handlers, etc.

Oh..good point. I'm really not willing to tolerate an ABI event
for this kind of perf optimization. I'd much rather start advocating
use of 64-bit kernels in order to enable use of MAX insns.

Until HP 24-bit color gfx PCI cards work on pa2.0, I don't
see a good reason to implement this. Maybe 8-bit color with
a private color map is sufficient...


thanks,
grant

grant
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Hello all,

Next investigation are obviously:
/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-float.out
::::::::::::::
testing float (without inline functions)
Failure: Real part of: cacos (inf + NaN i) == NaN + inf i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: cacos (-inf + NaN i) == NaN + inf i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: cacos (NaN + inf i) == NaN - inf i: Exception "Invalid operation" set
Failure: Real part of: cacos (NaN - inf i) == NaN + inf i: Exception "Invalid operation" set
Failure: Real part of: cacos (NaN + NaN i) == NaN + NaN i: Exception "Invalid operation" set
Failure: Real part of: ccosh (inf + NaN i) == inf + NaN i: Exception "Invalid operation" set
Failure: Real part of: ccosh (-inf + NaN i) == inf + NaN i: Exception "Invalid operation" set
Failure: Real part of: cpow (NaN + NaN i, NaN + NaN i) == NaN + NaN i: Exception "Invalid operation" set
Failure: Real part of: csinh (0.0 + NaN i) == 0.0 + NaN i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (-0 + NaN i) == 0.0 + NaN i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (inf + NaN i) == inf + NaN i plus sign of zero/inf not specified: Exception "Invalid operation" set
Failure: Real part of: csinh (-inf + NaN i) == inf + NaN i plus sign of zero/inf not specified: Exception "Invalid operation" set

First thought, the reported failure is very unrelevent: the actual pb is not related to computed value but well because cacos() let 
fpu flag with "Invalid operation" set. So imho this 1st patch:
--- libm-test.inc.Orig 2006-05-12 12:02:10.000000000 +0000
+++ libm-test.inc 2006-05-12 15:39:31.000000000 +0000
@@ -549,14 +549,19 @@
    int part_xfail;
    char str[200];

+  /* report first what computation did */
+  test_exceptions (test_name, exception);
+
    sprintf (str, "Real part of: %s", test_name);
    part_comp = __real__ computed;
    part_exp = __real__ expected;
    part_max_ulp = __real__ max_ulp;
    part_xfail = __real__ xfail;

+  /* Don't check again for exceptions, just pass through the
+     zero/inf sign test.  */
    check_float_internal (str, part_comp, part_exp, part_max_ulp, part_xfail,
-   exception, &real_max_error);
+   exception & IGNORE_ZERO_INF_SIGN, &real_max_error);

    sprintf (str, "Imaginary part of: %s", test_name);
    part_comp = __imag__ computed;
@@ -564,11 +569,8 @@
    part_max_ulp = __imag__ max_ulp;
    part_xfail = __imag__ xfail;

-  /* Don't check again for exceptions, just pass through the
-     zero/inf sign test.  */
    check_float_internal (str, part_comp, part_exp, part_max_ulp, part_xfail,
-   exception & IGNORE_ZERO_INF_SIGN,
-   &imag_max_error);
+   exception & IGNORE_ZERO_INF_SIGN, &imag_max_error);
  }


====<>====

would better report the actual pb like this test:
Failure: cacos (inf + NaN i) == NaN + inf i plus sign of zero/inf not specified: Exception "Invalid operation" set

Would it have a chance to be accepted?

That said, for now I just know that for the first failure only, the pb occure in:
__complex__ float
__cacosf (__complex__ float x)
{
   __complex__ float y;
   __complex__ float res;

   y = __casinf (x);

   __real__ res = (float) M_PI_2 - __real__ y;
   __imag__ res = -__imag__ y;

   return res;
}

when the "_real_ res" is computed.

The test "check_complex ("casin (inf + NaN i) == NaN + inf i plus sign of zero/inf not specified" pass well so the the computation 
would be __real__ res = (double) M_PI_2 - NaN.

And also seems to confirm my very first feeling: this formula is mathematicaly right but may be presents some lakes of numerical 
implementation like is the brotherhood funct:
__complex__ float
__casinf (__complex__ float x)
{
   __complex__ float res;

   if (isnan (__real__ x) || isnan (__imag__ x))
     {
       if (__real__ x == 0.0)
         {
           res = x;
         }
       else if (__isinff (__real__ x) || __isinff (__imag__ x))
         {
           __real__ res = __nanf ("");
           __imag__ res = __copysignf (HUGE_VALF, __imag__ x);
         }
       else
         {
           __real__ res = __nanf ("");
           __imag__ res = __nanf ("");
         }
     }
   else
     {
       __complex__ float y;

       __real__ y = -__imag__ x;
       __imag__ y = __real__ x;

       y = __casinhf (y);

       __real__ res = __imag__ y;
       __imag__ res = -__real__ y;
     }

   return res;
}

So my next question is: is some of you know a similar implementation of cacosf()? or what would be the results of cacosf() for 
various limit figure with nan, 0.0 and infinity?

Thanks in advance,
	Joel
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On 5/13/06, James Bottomley <James.Bottomley@steeleye.com> wrote:
> On Sat, 2006-05-13 at 17:41 +0200, Thibaut VARENE wrote:
> > 1) we claim what I'm trying to do should not be done on parisc-linux
> > =3D> using ldd/std, MAX2 and other insns that rely on 64bit regs should
> > be prohibited by binutils for non-wide code (currently gcc/binutils
> > happily build my code with -mpa-risc-2-0, which generates level 2.0
> > non wide code)
>
> I really don't think doubling the size of our register file on all tasks
> and doubling the size of the saved registers on stack for interruptions
> is really a sensible thing to do just so some multi-media extension can
> be made to work.

that's not my point. It's not only about "some multimedia extension".
It's about being able to do 64bit logic on 64bit-wide registers with
32bit kernels...

> > 2) we claim what I'm trying to do should be possible on parisc-linux
> > =3D> we need to fix context switching in 32bit kernels.
> >
> > Comments?
>
> There is a third possibility, and that's to execute the instruction in
> the kernel where there wouldn't be a danger of context switches, where
> the return values could be packaged properly and where it could be
> emulated if necessary.  It would be nice to use a vDSO for this, but I
> suspect Carlos' lightweight semaphore infrastructure can be pressed into
> service for this.

If by "executing the instruction" you mean one specific insn, that
sounds like a nightmare to me. I've got some routines asm-optimized
that are about 15 lines of asm. Each of these routines handle packs of
16 pixels. On a 640x480@25fps movie for instance, these routines would
typically be called at least 480000 times per second, and they're
expected to be executed as fast as possible (which is the whole point
of doing them in hand crafted asm)...

I don't know about vDSO, but the thought of having to call something
in the kernel in that perspective doesn't feel about right to me. I've
been reading other archs optimizations, and all do straight forward
asm computation.

What I'm looking for is a way to use the architecture to the best of
its design, and said design comprises 64bit wide GPRs...

If that's not possible in parisc-linux, fine, I'd just like to have
this clarified so I don't waste my time on pointless code :-)

HTH

T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On 5/13/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > Two options from there:
> > 1) we claim what I'm trying to do should not be done on parisc-linux
> > =3D> using ldd/std, MAX2 and other insns that rely on 64bit regs should
> > be prohibited by binutils for non-wide code (currently gcc/binutils
> > happily build my code with -mpa-risc-2-0, which generates level 2.0
> > non wide code)
>
> Well, hpux supports using 64-bit registers in non-wide code, so
> I don't particularly like the idea that code generation changes
> between linux and hpux.  64-bit registers are a PA 2.0 feature
> and their use is independent of whether or not the processor is
> in wide mode.

Yes I took back the wrong implication in a subsequent post.
I'm glad to hear that, that sounds sensible to me.

> > 2) we claim what I'm trying to do should be possible on parisc-linux
> > =3D> we need to fix context switching in 32bit kernels.
>
> I believe that's the correct approach.  The context state needs to
> be updated for 64-bit userspace anyway.  HP-UX has some horrible
> macros like GetSSReg for accessing register values in context data
> (see pa/save_state.h).

As James pointed out, fixing this means doubling the size of saved
registers on stack...

> config.guess for the distinguishes narrow and wide hpux kernels
> (hppa2.0, hppa2.0n and hppa2.0w).  The hppa2.0 and hppa2.0n kernels
> are narrow and don't support 64-bit context information.  As far
> as I know, wide kernels support 64-bit context information for
> the 32-bit runtime.
>
> The GMP library is one bit of code that attempts to make use of this
> capability.  It's a problem for GCC as there's no way to describe that
> a register is partially call clobbered.

There I'm a bit confused. Correct me if I'm wrong, but to be able to
effectively use 64bit registers you need the kernel to save 64bit
registers on context switch? So if the narrow kernel doesn't support
64bit context information (as it's currently the case with
parisc-linux), you can't use them?

Are you trying to say that userspace code shouldn't be using the full
registers width when running a 32bit (narrow) kernel?

If so, how can hpux support using 64bit registers in non wide mode?
Upon any context switch, their content would be messed up if only half
of it is saved...

T-Bone

--=20
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [parisc-linux] [RFC] using 64bit wide registers with 32bit kernel
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> > I believe that's the correct approach.  The context state needs to
> > be updated for 64-bit userspace anyway.  HP-UX has some horrible
> > macros like GetSSReg for accessing register values in context data
> > (see pa/save_state.h).
> 
> As James pointed out, fixing this means doubling the size of saved
> registers on stack...

I believe that we already save 64 bits when CONFIG_64BIT is true.  See
assembly.h.

> There I'm a bit confused. Correct me if I'm wrong, but to be able to
> effectively use 64bit registers you need the kernel to save 64bit
> registers on context switch? So if the narrow kernel doesn't support
> 64bit context information (as it's currently the case with
> parisc-linux), you can't use them?

64-bit kernels run in wide mode, so they have to save/restore 64bit
registers.  It's certainly not much of an extension to save 64 bits
on user context changes.

> Are you trying to say that userspace code shouldn't be using the full
> registers width when running a 32bit (narrow) kernel?

I don't believe that it's impossible to support the full register width
with a 32bit (narrow) kernel.  However, hpux to my knowledge doesn't
support 64-bit registers when using a narrow kernel.  I think this
reflects the historical development of hpux.  The first PA 2.0 kernels
were narrow and based on the 32-bit PA 1.1 implementation.  Wide kernels
were introduced with HP-UX 11.

> If so, how can hpux support using 64bit registers in non wide mode?
> Upon any context switch, their content would be messed up if only half
> of it is saved...

Sure.  The hpux context has various flag bits (e.g. SS_WIDEREGS
and SS_NARROWISINVALID) to handle the various differences between
the PA 1.0, 1.1 and 2.0 architectures.  There was a change in
the number of floating point registers between 1.0 and 1.1, and
in the accessibility of the left and right halves.

Personally, I think the wide register support is most important
when running a 64-bit kernel and that's the place it would be
easiest to implement.  I can see that there are situations where
it would be nice to use 64-bit registers on a narrow kernel but
this would change the size of register files, the context passed
to signal handlers, etc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> So my next question is: is some of you know a similar implementation of c=
acosf()?
> or what would be the results of cacosf() for various limit figure with na=
n, 0.0 and infinity?

Is the problem the setting of the V-bit by the operation?

The value of  "cacos (inf + NaN i)" is  "NaN + inf i", the problem is
that after the test the processor has turned on the V bit to indicate
that the operation is invalid.

In 10-9 of the PA 2.0 book there is a complete description of what
should and should
not trigger an "invalid" exception.

Do we have a case of:
1. Any arithmetic operation on a signaling NaN except for conversion
to integer formats.
2. Magnitude subtraction of intinities like (+inf + -inf)
3. Multiplication of 0 and inf
4. The division operations 0/0 and inf/inf
5. Square root if the operand is less than zero
6. Inproper comparison operations
7. Conversion to integer format as in table 10-6.

Cheers,
Carlos.
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Xref: news.gmane.org gmane.linux.ports.parisc:23686

> > So my next question is: is some of you know a similar implementation =
of
cacosf()?
> > or what would be the results of cacosf() for various limit figure wit=
h
nan, 0.0 and infinity?
> 
> Is the problem the setting of the V-bit by the operation?
> 
yes as explain during the computation of:
    __real__ res =3D (float) M_PI_2 - __real__ y;


> The value of  "cacos (inf + NaN i)" is  "NaN + inf i", the problem is
> that after the test the processor has turned on the V bit to indicate
> that the operation is invalid.
> 
That's my understanding too, tx.

> In 10-9 of the PA 2.0 book there is a complete description of what
> should and should
> not trigger an "invalid" exception.
> 
> Do we have a case of:
> 1. Any arithmetic operation on a signaling NaN except for conversion
> to integer formats.
> 2. Magnitude subtraction of intinities like (+inf + -inf)
> 3. Multiplication of 0 and inf
> 4. The division operations 0/0 and inf/inf
> 5. Square root if the operand is less than zero
> 6. Inproper comparison operations
> 7. Conversion to integer format as in table 10-6.
> 
Nothing related sorry.

_real_ y is the real part of casinf (inf + NaN i) =3D=3D NaN + inf i;

so __real__ res =3D=3D some_const [+/-] NaN;

So the pb is realted to oprations with NaN?

I so need to know more about which kind of nan value is in the game: a
signaling or a quiet. (printf ("%f\n", _real_ y) printing sadely 'nan')

I so grab in my foo.c file the generic cacosf and build such local versio=
n:
static __complex__ float
L_cacosf (__complex__ float x)
{
printf ("%s();\n", __FUNCTION__);
  __complex__ float y;
  __complex__ float res;

  struct { unsigned int sw[2]; } s;

  /* Get the current status word. */
  __asm__ (
    "fstd               %%fr0, 0(%1) \n\t"
    : "=3Dm" (s)
    : "r" (&s)
  );

printf ("Just b4 casinf();\n");
printf ("s.sw[0]: 0x%x.\n", s.sw[0]);
printf ("s.sw[0] >> 27: 0x%x.\n", (s.sw[0] >> 27));

printf ("imag x: 0x%x\n", (int) __imag__ x);

  y =3D casinf (x);

  /* Get the current status word. */
  __asm__ (
    "fstd               %%fr0, 0(%1) \n\t"
    : "=3Dm" (s)
    : "r" (&s)
  );

printf ("Just aftr __casinf();\n");
printf ("s.sw[0]: 0x%x.\n", s.sw[0]);
printf ("s.sw[0] >> 27: 0x%x.\n", (s.sw[0] >> 27));

printf ("real y: 0x%x\n", (int) __real__ y);

__asm__("#B4_real_res");
  __real__ res =3D (float) M_PI_2 - __real__ y;
__asm__("#AFTR_real_res");

  /* Get the current status word. */
  __asm__ (
    "fstd               %%fr0, 0(%1) \n\t"
    : "=3Dm" (s)
    : "r" (&s)
  );

printf ("Just aftr __real__ res;\n");
printf ("s.sw[0]: 0x%x.\n", s.sw[0]);
printf ("s.sw[0] >> 27: 0x%x.\n", (s.sw[0] >> 27));

  __imag__ res =3D -__imag__ y;

  /* Get the current status word. */
  __asm__ (
    "fstd               %%fr0, 0(%1) \n\t"
    : "=3Dm" (s)
    : "r" (&s)
  );

printf ("Just aftr __imag__ res;\n");
printf ("s.sw[0]: 0x%x.\n", s.sw[0]);
printf ("s.sw[0] >> 27: 0x%x.\n", (s.sw[0] >> 27));

  return res;
}

Well I have to hack a bit *.s file to printout non converted "imag x:" an=
d
"real y:" but seems to work:

L_cacosf();
Just b4 casinf();
s.sw[0]: 0x100000.
s.sw[0] >> 27: 0x0.
imag x: 0x7fa00000
Just aftr __casinf();
s.sw[0]: 0x4080000.
s.sw[0] >> 27: 0x0.
real y: 0x7fc00000
Just aftr __real__ res;
s.sw[0]: 0x84080000.
s.sw[0] >> 27: 0x10.
Just aftr __imag__ res;
s.sw[0]: 0x84080000.
s.sw[0] >> 27: 0x10.

;-)

Using 'single binary floating-point' format describe p8-6 of same PARISC =
2.0
Architecture, it seems that:

imag x: 0x7fa00000
in bin form: 01111111101000000000000000000000

i.e.: a fraction (not zero)
01000000000000000000000
and e: 11111111 

As the 1st byte (b1) of fraction is 0, this seems to be a quiet nan (acco=
rding
to NaN desciption on top of next page)?

And following same way of thought for real y, I got:

real y: 0x7fc00000
in bin form: 01111111110000000000000000000000

i.e.: a fraction (not zero)
10000000000000000000000
and e: 11111111

But the first bit is this time b1 =3D=3D 1 so a signaling nan.

And p8-23 of same book describe 'Operation with NaNs' and specialy
sic: An operation causes an invalid exception when at least one operand i=
s a
signaling NaN and the operation is any arithmetic operation.

Effectively __asm__("#banners"); help me to locate the genrated code:
#APP   
        #B4_real_res
        .loc 1 274 0
#NO_APP
        fldws -12(%r4),%fr22L
        ldil LR'.LC37,%r28
        ldo RR'.LC37(%r28),%r28
        fldws 0(%r28),%fr23L
        fsub,sgl %fr23L,%fr22L,%fr23L
.LVL57:
        fldws -16(%r6),%fr22L
        ldo -160(%r30),%r5  
        fstws %fr22L,-12(%r5)
        fstws %fr23L,-16(%r4)
        fldws -12(%r5),%fr22L
        fldws -16(%r4),%fr23L
        fstws %fr22L,8(%r4)
.LVL58:
        fstws %fr23L,4(%r4)
.LVL59:
        .loc 1 275 0
#APP
        #AFTR_real_res
        .loc 1 284 0
#NO_APP

and the operation is 'fsub,sgl %fr23L,%fr22L,%fr23L'

Agree?

That's why I am convinced that this implemetation of cacos is to simple
compare to its brotherhood casin which makes much more test for limits va=
lues
like nans, 0, inf.

Thanks a lot,
    Joel
=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devenez au=
jourd'hui Scarlet One grace a un client existant de Scarlet, vous recevez=
 tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur http:/=
/www.clubscarlet.be

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Thibaut VARENE wrote:
> On 15 May 2006 05:10:15 -0400, Jes Sorensen <jes@sgi.com> wrote:
>> What about setting an ELF flag or somesuch, set a task flag based on
>> this and then only do the extended register file backup for these
>> apps?
> 
> If that's possible *and* acceptable, it might be very helpful indeed.

I don't know anything about the PARISC ELF specification, but I think
it ought to be feasible.

Alternatively, if you can trap the instruction so you get a kernel trap
the first time the user app tries to do this and then set the flag then.
Otherwise there is the problem that someone will do some hand tuned
assembly that uses the 64 bit regs and you end up with mocked up state
if this goes undetected.

Cheers,
Jes
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On Mon, May 15, 2006 at 05:10:15AM -0400, Jes Sorensen wrote:
> 
> What about setting an ELF flag or somesuch, set a task flag based on
> this and then only do the extended register file backup for these
> apps?
>

There are bits in the PA ELF supplement for stuff like this, for
example you can certainly have a PARISC2_0 ELF32 object file.

I proposed doing exactly this when it was first brought up. There is a
slight snag though, it could get icky internally... Whoever volunteers
to do it would certain be in for some fun in entry.S amongst other places.
Probably more effort than it is worth in other words. On the other hand
the work in the same areas is probably needed to ever support HPUX 
ELF binaries.

Cheers!
	Kyle
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On Sun, May 14, 2006 at 11:10:30AM -0400, John David Anglin wrote:
> > Until HP 24-bit color gfx PCI cards work on pa2.0, I don't
> > see a good reason to implement this. Maybe 8-bit color with
> > a private color map is sufficient...
> 
> Tried firefox recently?

Not on parisc. I'm regularly using it on ia64 and x86.
When I had parisc desktop 2 years ago, I got fed up with
the 8-bit color (PCI Vis_EG) and no audio (fixed now).
That's why I moved to a zx2000 (ia64) desktop.

thanks,
grant
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Subject: [parisc-linux] [PATCH] Add TLS support for hppa-linux.
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The following patches add TLS support for hppa-linux.

The specification draft for TLS support for hppa-linux is located here:
http://parisc-linux.org/documentation/tls/hppa-tls-implementation.pdf

GCC patches for TLS support are already in place.

GLIBC support is setup except for the final addition of the relocs
to elf/elf.h. Patch has been sent to libc-alpha.

Passes without regressions on hppa-linux.
More specific tests still need to be written.

Ok to commit?

Cheers,
Carlos.

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include/elf/

2006-05-14  Carlos O'Donell  <carlos@systemhalted.org>
	    Randolph Chung  <randolph@tausq.org>
	* hppa.h (R_PARISC_TLS_GD21L, R_PARISC_TLS_GD14R, R_PARISC_TLS_GDCALL,
	R_PARISC_TLS_LDM21L, R_PARISC_TLS_LDM14R, R_PARISC_TLS_LDMCALL,
	R_PARISC_TLS_LDO21L, R_PARISC_TLS_LDO14R, R_PARISC_TLS_DTPMOD32, 
	R_PARISC_TLS_DTPMOD64, R_PARISC_TLS_DTPOFF32, R_PARISC_TLS_DTPOFF64): 
	New TLS relocs.
	(R_PARISC_TLS_LE21L, R_PARISC_TLS_LE14R, R_PARISC_TLS_IE21L,
	R_PARISC_TLS_IE14R, R_PARISC_TLS_TPREL32, R_PARISC_TLS_TPREL64):
	Define TLS relocs using existing equivalents.


bfd/

2006-05-14  Carlos O'Donell  <carlos@systemhalted.org>
	    Randolph Chung  <tausq@debian.org>
	    
	* elf-hppa.h (reloc_hppa_howto_table): Check bitfield for
	TPREL21L/TPREL14R relocations. Handle LTOFF_TP14R relocations.
	Add handling for TLS relocations.
	(elf_hpp_reloc_final_type): Handle TLS relocs.
	* elf32-hppa.c: Add authors for cleanup and TLS support.
	(hppa_elf_local_got_tls_type, hh_name, eh_name): Define.
	(elf32_hppa_link_hash_entry): Add tls_type.
	(elf32_hppa_link_hash_table): Add tld_ldm_got.
	(hppa_link_has_newfunc): Set tls_type.
	(elf32_hppa_link_hash_table_create): Set tls_ldm_got refcount.
	(hppa_stub_name): Use hh_name macro.
	(elf32_hppa_copy_indirect_symbol): Copy TLS information.
	(elf32_hppa_check_relocs): Call elf32_hppa_optimized_tls_reloc.
	Handle TLS relocs.
	(elf32_hppa_gc_sweep_hook): Likewise. 
	(allocate_dynrelocs): Handle TLS relocs.
	(elf32_hppa_size_dynamic_sections): Count space required by TLS
	relocs. Use hh_name macro.
	(dtpoff_base): New function.
	(tpoff): Likewise.
	(elf32_hppa_optimized_tls_reloc): Likewise.
	(final_link_relocate): Handle TLS relocs.
	(elf32_hppa_relocate_section): Handle TLS relocs. Use eh_name
	and hh_name macros.
	(elf32_hppa_finish_dynamic_symbol): Setup TLS got entries. Use
	hh_name and eh_name macros.
	(elf32_hppa_reloc_type_clas): Handle TLS relocs.

gas/

2006-05-14  Carlos O'Donell  <carlos@systemhalted.org>
	    Randolph Chung  <randolph@tausq.org>
	    
	* config/tc-hppa.c (is_tls_gdidx, is_tls_ldidx, is_tls_dtpoff,
	is_tls_ieoff, is_tls_leoff): Define.
	(fix_new_hppa): Handle TLS.
	(cons_fix_new_hppa): Likewise.
	(pa_ip): Likewise.
	(md_apply_fix): Handle TLS relocs.
	* config/tc-hppa.h (hppa_fix_adjustable): Handle TLS.



------=_Part_4642_14911926.1147655678323
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	name=patch-binutils-tls-2006-05-15.diff
Content-Transfer-Encoding: 7bit
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Content-Disposition: attachment; filename="patch-binutils-tls-2006-05-15.diff"

Index: bfd/elf-hppa.h
===================================================================
RCS file: /cvs/src/src/bfd/elf-hppa.h,v
retrieving revision 1.81
diff -u -p -r1.81 elf-hppa.h
--- bfd/elf-hppa.h	25 Aug 2005 02:32:09 -0000	1.81
+++ bfd/elf-hppa.h	14 May 2006 23:14:44 -0000
@@ -387,7 +387,7 @@ static reloc_howto_type elf_hppa_howto_t
     bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
   { R_PARISC_TPREL32, 0, 0, 32, FALSE, 0, complain_overflow_dont,
     bfd_elf_generic_reloc, "R_PARISC_TPREL32", FALSE, 0, 0, FALSE },
-  { R_PARISC_TPREL21L, 0, 0, 21, FALSE, 0, complain_overflow_dont,
+  { R_PARISC_TPREL21L, 0, 0, 21, FALSE, 0, complain_overflow_bitfield,
     bfd_elf_generic_reloc, "R_PARISC_TPREL21L", FALSE, 0, 0, FALSE },
   { R_PARISC_UNIMPLEMENTED, 0, 0, 0, FALSE, 0, complain_overflow_dont,
     bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
@@ -395,7 +395,7 @@ static reloc_howto_type elf_hppa_howto_t
     bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
   { R_PARISC_UNIMPLEMENTED, 0, 0, 0, FALSE, 0, complain_overflow_dont,
     bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
-  { R_PARISC_TPREL14R, 0, 0, 14, FALSE, 0, complain_overflow_dont,
+  { R_PARISC_TPREL14R, 0, 0, 14, FALSE, 0, complain_overflow_bitfield,
     bfd_elf_generic_reloc, "R_PARISC_TPREL14R", FALSE, 0, 0, FALSE },
   { R_PARISC_UNIMPLEMENTED, 0, 0, 0, FALSE, 0, complain_overflow_dont,
     bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
@@ -413,7 +413,7 @@ static reloc_howto_type elf_hppa_howto_t
   { R_PARISC_UNIMPLEMENTED, 0, 0, 0, FALSE, 0, complain_overflow_bitfield,
     bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
   { R_PARISC_LTOFF_TP14R, 0, 0, 14, FALSE, 0, complain_overflow_bitfield,
-    bfd_elf_generic_reloc, "R_PARISC_UNIMPLEMENTED", FALSE, 0, 0, FALSE },
+    bfd_elf_generic_reloc, "R_PARISC_LTOFF_TP14R", FALSE, 0, 0, FALSE },
   { R_PARISC_LTOFF_TP14F, 0, 0, 14, FALSE, 0, complain_overflow_bitfield,
     bfd_elf_generic_reloc, "R_PARISC_LTOFF_TP14F", FALSE, 0, 0, FALSE },
   /* 168 */
@@ -557,6 +557,31 @@ static reloc_howto_type elf_hppa_howto_t
     bfd_elf_generic_reloc, "R_PARISC_GNU_VTENTRY", FALSE, 0, 0, FALSE },
   { R_PARISC_GNU_VTINHERIT, 0, 0, 0, FALSE, 0, complain_overflow_dont,
     bfd_elf_generic_reloc, "R_PARISC_GNU_VTINHERIT", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_GD21L, 0, 0, 21, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_GD21L", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_GD14R, 0, 0, 14, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_GD14R", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_GDCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_GDCALL", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_LDM21L, 0, 0, 21, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_LDM21L", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_LDM14R, 0, 0, 14, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_LDM14R", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_LDMCALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_LDMCALL", FALSE, 0, 0, FALSE },
+  /* 240 */
+  { R_PARISC_TLS_LDO21L, 0, 0, 21, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_LDO21L", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_LDO14R, 0, 0, 14, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_LDO14R", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_DTPMOD32, 0, 0, 32, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_DTPMOD32", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_DTPMOD64, 0, 0, 64, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_DTPMOD64", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_DTPOFF32, 0, 0, 32, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_DTPOFF32", FALSE, 0, 0, FALSE },
+  { R_PARISC_TLS_DTPOFF64, 0, 0, 64, FALSE, 0, complain_overflow_bitfield,
+    bfd_elf_generic_reloc, "R_PARISC_TLS_DTPOFF64", FALSE, 0, 0, FALSE },
 };
 
 #define OFFSET_14R_FROM_21L 4
@@ -837,6 +862,82 @@ elf_hppa_reloc_final_type (bfd *abfd,
 	  return R_PARISC_NONE;
 	}
       break;
+      
+    case R_PARISC_TLS_GD21L:
+      switch (field)
+	{
+	  case e_ltsel:
+	  case e_lrsel:
+	    final_type = R_PARISC_TLS_GD21L;
+	    break;
+	  case e_rtsel:
+	  case e_rrsel:
+	    final_type = R_PARISC_TLS_GD14R;
+	    break;
+	  default:
+	    return R_PARISC_NONE;
+	}
+      break;
+
+    case R_PARISC_TLS_LDM21L:
+      switch (field)
+	{
+	  case e_ltsel:
+	  case e_lrsel:
+	    final_type = R_PARISC_TLS_LDM21L;
+	    break;
+	  case e_rtsel:
+	  case e_rrsel:
+	    final_type = R_PARISC_TLS_LDM14R;
+	    break;
+	  default:
+	    return R_PARISC_NONE;
+	}
+      break;
+
+    case R_PARISC_TLS_LDO21L:
+      switch (field)
+	{
+	  case e_lrsel:
+	    final_type = R_PARISC_TLS_LDO21L;
+	    break;
+	  case e_rrsel:
+	    final_type = R_PARISC_TLS_LDO14R;
+	    break;
+	  default:
+	    return R_PARISC_NONE;
+	}
+      break;
+
+    case R_PARISC_TLS_IE21L:
+      switch (field)
+	{
+	  case e_ltsel:
+	  case e_lrsel:
+	    final_type = R_PARISC_TLS_IE21L;
+	    break;
+	  case e_rtsel:
+	  case e_rrsel:
+	    final_type = R_PARISC_TLS_IE14R;
+	    break;
+	  default:
+	    return R_PARISC_NONE;
+	}
+      break;
+
+    case R_PARISC_TLS_LE21L:
+      switch (field)
+	{
+	  case e_lrsel:
+	    final_type = R_PARISC_TLS_LE21L;
+	    break;
+	  case e_rrsel:
+	    final_type = R_PARISC_TLS_LE14R;
+	    break;
+	  default:
+	    return R_PARISC_NONE;
+	}
+      break;
 
     case R_PARISC_GNU_VTENTRY:
     case R_PARISC_GNU_VTINHERIT:
Index: bfd/elf32-hppa.c
===================================================================
RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
retrieving revision 1.144
diff -u -p -r1.144 elf32-hppa.c
--- bfd/elf32-hppa.c	16 Mar 2006 12:20:15 -0000	1.144
+++ bfd/elf32-hppa.c	14 May 2006 23:14:45 -0000
@@ -7,7 +7,9 @@
 	Department of Computer Science
 	University of Utah
    Largely rewritten by Alan Modra <alan@linuxcare.com.au>
-
+   Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
+   TLS support written by Randolph Chung <tausq@debian.org>
+ 
    This file is part of BFD, the Binary File Descriptor library.
 
    This program is free software; you can redistribute it and/or modify
@@ -230,6 +232,10 @@ struct elf32_hppa_link_hash_entry {
 #endif
   } *dyn_relocs;
 
+  enum {
+    GOT_UNKNOWN = 0, GOT_NORMAL = 1, GOT_TLS_GD = 2, GOT_TLS_LDM = 4, GOT_TLS_IE = 8
+  } tls_type;
+
   /* Set if this symbol is used by a plabel reloc.  */
   unsigned int plabel:1;
 };
@@ -292,6 +298,12 @@ struct elf32_hppa_link_hash_table {
 
   /* Small local sym to section mapping cache.  */
   struct sym_sec_cache sym_sec;
+
+  /* Data for LDM relocations.  */
+  union {
+    bfd_signed_vma refcount;
+    bfd_vma offset;
+  } tls_ldm_got;
 };
 
 /* Various hash macros and functions.  */
@@ -308,6 +320,19 @@ struct elf32_hppa_link_hash_table {
   ((struct elf32_hppa_stub_hash_entry *) \
    bfd_hash_lookup ((table), (string), (create), (copy)))
 
+#define hppa_elf_local_got_tls_type(abfd) \
+  ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
+
+#define hh_name(hh) \
+  (hh ? hh->eh.root.root.string : "<undef>")
+
+#define eh_name(eh) \
+  (eh ? eh->root.root.string : "<undef>")
+
+static int
+elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info,
+				int r_type, int is_local);
+
 /* Assorted hash table functions.  */
 
 /* Initialize an entry in the stub hash table.  */
@@ -375,6 +400,7 @@ hppa_link_hash_newfunc (struct bfd_hash_
       hh->hsh_cache = NULL;
       hh->dyn_relocs = NULL;
       hh->plabel = 0;
+      hh->tls_type = GOT_UNKNOWN;
     }
 
   return entry;
@@ -424,6 +450,7 @@ elf32_hppa_link_hash_table_create (bfd *
   htab->has_22bit_branch = 0;
   htab->need_plt_stub = 0;
   htab->sym_sec.abfd = NULL;
+  htab->tls_ldm_got.refcount = 0;
 
   return &htab->etab.root;
 }
@@ -453,13 +480,13 @@ hppa_stub_name (const asection *input_se
 
   if (hh)
     {
-      len = 8 + 1 + strlen (hh->eh.root.root.string) + 1 + 8 + 1;
+      len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
       stub_name = bfd_malloc (len);
       if (stub_name != NULL)
 	{
 	  sprintf (stub_name, "%08x_%s+%x",
 		   input_section->id & 0xffffffff,
-		   hh->eh.root.root.string,
+		   hh_name (hh),
 		   (int) rela->r_addend & 0xffffffff);
 	}
     }
@@ -1063,7 +1090,16 @@ elf32_hppa_copy_indirect_symbol (struct 
       eh_dir->needs_plt |= eh_ind->needs_plt;
     }
   else
-   _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
+    {
+      if (eh_ind->root.type == bfd_link_hash_indirect
+          && eh_dir->got.refcount <= 0)
+        {
+          hh_dir->tls_type = hh_ind->tls_type;
+          hh_ind->tls_type = GOT_UNKNOWN;
+        }
+
+      _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
+    }
 }
 
 /* Look through the relocs for a section during the first phase, and
@@ -1084,6 +1120,7 @@ elf32_hppa_check_relocs (bfd *abfd,
   struct elf32_hppa_link_hash_table *htab;
   asection *sreloc;
   asection *stubreloc;
+  int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
 
   if (info->relocatable)
     return TRUE;
@@ -1121,6 +1158,7 @@ elf32_hppa_check_relocs (bfd *abfd,
 	}
 
       r_type = ELF32_R_TYPE (rela->r_info);
+      r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
 
       switch (r_type)
 	{
@@ -1243,6 +1281,20 @@ elf32_hppa_check_relocs (bfd *abfd,
 	    return FALSE;
 	  continue;
 
+	case R_PARISC_TLS_GD21L:
+	case R_PARISC_TLS_GD14R:
+	case R_PARISC_TLS_LDM21L:
+	case R_PARISC_TLS_LDM14R:
+	  need_entry = NEED_GOT;
+	  break;
+
+	case R_PARISC_TLS_IE21L:
+	case R_PARISC_TLS_IE14R:
+	  if (info->shared)
+            info->flags |= DF_STATIC_TLS;
+	  need_entry = NEED_GOT;
+	  break;
+
 	default:
 	  continue;
 	}
@@ -1250,6 +1302,25 @@ elf32_hppa_check_relocs (bfd *abfd,
       /* Now carry out our orders.  */
       if (need_entry & NEED_GOT)
 	{
+	  switch (r_type)
+	    {
+	    default:
+	      tls_type = GOT_NORMAL;
+	      break;
+	    case R_PARISC_TLS_GD21L:
+	    case R_PARISC_TLS_GD14R:
+	      tls_type |= GOT_TLS_GD;
+	      break;
+	    case R_PARISC_TLS_LDM21L:
+	    case R_PARISC_TLS_LDM14R:
+	      tls_type |= GOT_TLS_LDM;
+	      break;
+	    case R_PARISC_TLS_IE21L:
+	    case R_PARISC_TLS_IE14R:
+	      tls_type |= GOT_TLS_IE;
+	      break;
+	    }
+
 	  /* Allocate space for a GOT entry, as well as a dynamic
 	     relocation for this entry.  */
 	  if (htab->sgot == NULL)
@@ -1260,31 +1331,56 @@ elf32_hppa_check_relocs (bfd *abfd,
 		return FALSE;
 	    }
 
-	  if (hh != NULL)
-	    {
-	      hh->eh.got.refcount += 1;
-	    }
+	  if (r_type == R_PARISC_TLS_LDM21L
+	      || r_type == R_PARISC_TLS_LDM14R)
+	    hppa_link_hash_table (info)->tls_ldm_got.refcount += 1;
 	  else
 	    {
-	      bfd_signed_vma *local_got_refcounts;
-              /* This is a global offset table entry for a local symbol.  */
-	      local_got_refcounts = elf_local_got_refcounts (abfd);
-	      if (local_got_refcounts == NULL)
-		{
-		  bfd_size_type size;
+	      if (hh != NULL)
+	        {
+	          hh->eh.got.refcount += 1;
+	          old_tls_type = hh->tls_type;
+	        }
+	      else
+	        {
+	          bfd_signed_vma *local_got_refcounts;
+		  
+	          /* This is a global offset table entry for a local symbol.  */
+	          local_got_refcounts = elf_local_got_refcounts (abfd);
+	          if (local_got_refcounts == NULL)
+		    {
+		      bfd_size_type size;
+
+		      /* Allocate space for local got offsets and local
+		         plt offsets.  Done this way to save polluting
+		         elf_obj_tdata with another target specific
+		         pointer.  */
+		      size = symtab_hdr->sh_info;
+		      size *= 2 * sizeof (bfd_signed_vma);
+		      /* Add in space to store the local GOT TLS types.  */
+		      size += symtab_hdr->sh_info;
+		      local_got_refcounts = bfd_zalloc (abfd, size);
+		      if (local_got_refcounts == NULL)
+		        return FALSE;
+		      elf_local_got_refcounts (abfd) = local_got_refcounts;
+		      memset (hppa_elf_local_got_tls_type (abfd),
+		    	  GOT_UNKNOWN, symtab_hdr->sh_info);
+		    }
+	          local_got_refcounts[r_symndx] += 1;
+
+	          old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
+	        }
+
+	      tls_type |= old_tls_type;
+
+	      if (old_tls_type != tls_type)
+	        {
+	          if (hh != NULL)
+		    hh->tls_type = tls_type;
+	          else
+		    hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
+	        }
 
-		  /* Allocate space for local got offsets and local
-		     plt offsets.  Done this way to save polluting
-		     elf_obj_tdata with another target specific
-		     pointer.  */
-		  size = symtab_hdr->sh_info;
-		  size *= 2 * sizeof (bfd_signed_vma);
-		  local_got_refcounts = bfd_zalloc (abfd, size);
-		  if (local_got_refcounts == NULL)
-		    return FALSE;
-		  elf_local_got_refcounts (abfd) = local_got_refcounts;
-		}
-	      local_got_refcounts[r_symndx] += 1;
 	    }
 	}
 
@@ -1325,6 +1421,8 @@ elf32_hppa_check_relocs (bfd *abfd,
 			 plt offsets.  */
 		      size = symtab_hdr->sh_info;
 		      size *= 2 * sizeof (bfd_signed_vma);
+		      /* Add in space to store the local GOT TLS types.  */
+		      size += symtab_hdr->sh_info;
 		      local_got_refcounts = bfd_zalloc (abfd, size);
 		      if (local_got_refcounts == NULL)
 			return FALSE;
@@ -1578,11 +1676,17 @@ elf32_hppa_gc_sweep_hook (bfd *abfd,
 	}
 
       r_type = ELF32_R_TYPE (rela->r_info);
+      r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
+
       switch (r_type)
 	{
 	case R_PARISC_DLTIND14F:
 	case R_PARISC_DLTIND14R:
 	case R_PARISC_DLTIND21L:
+	case R_PARISC_TLS_GD21L:
+	case R_PARISC_TLS_GD14R:
+	case R_PARISC_TLS_IE21L:
+	case R_PARISC_TLS_IE14R:
 	  if (eh != NULL)
 	    {
 	      if (eh->got.refcount > 0)
@@ -1595,6 +1699,11 @@ elf32_hppa_gc_sweep_hook (bfd *abfd,
 	    }
 	  break;
 
+	case R_PARISC_TLS_LDM21L:
+	case R_PARISC_TLS_LDM14R:
+	  hppa_link_hash_table (info)->tls_ldm_got.refcount -= 1;
+	  break;
+
 	case R_PARISC_PCREL12F:
 	case R_PARISC_PCREL17C:
 	case R_PARISC_PCREL17F:
@@ -1982,12 +2091,22 @@ allocate_dynrelocs (struct elf_link_hash
       sec = htab->sgot;
       eh->got.offset = sec->size;
       sec->size += GOT_ENTRY_SIZE;
+      /* R_PARISC_TLS_GD* needs two GOT entries */
+      if ((hh->tls_type & (GOT_TLS_GD|GOT_TLS_IE)) 
+	  == (GOT_TLS_GD|GOT_TLS_IE))
+      	sec->size += GOT_ENTRY_SIZE * 2;
+      else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
+      	sec->size += GOT_ENTRY_SIZE;
       if (htab->etab.dynamic_sections_created
 	  && (info->shared
 	      || (eh->dynindx != -1
 		  && !eh->forced_local)))
 	{
 	  htab->srelgot->size += sizeof (Elf32_External_Rela);
+	  if ((hh->tls_type & (GOT_TLS_GD|GOT_TLS_IE)) == (GOT_TLS_GD|GOT_TLS_IE))
+	    htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
+	  else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
+	    htab->srelgot->size += sizeof (Elf32_External_Rela);
 	}
     }
   else
@@ -2181,6 +2300,7 @@ elf32_hppa_size_dynamic_sections (bfd *o
       bfd_size_type locsymcount;
       Elf_Internal_Shdr *symtab_hdr;
       asection *srel;
+      char *local_tls_type;
 
       if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
 	continue;
@@ -2219,6 +2339,7 @@ elf32_hppa_size_dynamic_sections (bfd *o
       symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
       locsymcount = symtab_hdr->sh_info;
       end_local_got = local_got + locsymcount;
+      local_tls_type = hppa_elf_local_got_tls_type (ibfd);
       sec = htab->sgot;
       srel = htab->srelgot;
       for (; local_got < end_local_got; ++local_got)
@@ -2227,11 +2348,23 @@ elf32_hppa_size_dynamic_sections (bfd *o
 	    {
 	      *local_got = sec->size;
 	      sec->size += GOT_ENTRY_SIZE;
+	      if ((*local_tls_type & (GOT_TLS_GD|GOT_TLS_IE)) == (GOT_TLS_GD|GOT_TLS_IE))
+		sec->size += 2 * GOT_ENTRY_SIZE;
+	      else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
+		sec->size += GOT_ENTRY_SIZE;
 	      if (info->shared) 
-		srel->size += sizeof (Elf32_External_Rela);
+	        {
+		  srel->size += sizeof (Elf32_External_Rela);
+		  if ((*local_tls_type & (GOT_TLS_GD|GOT_TLS_IE)) == (GOT_TLS_GD|GOT_TLS_IE))
+		    srel->size += 2 * sizeof (Elf32_External_Rela);
+		  else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
+		    srel->size += sizeof (Elf32_External_Rela);
+	        }
 	    }
 	  else
 	    *local_got = (bfd_vma) -1;
+
+	  ++local_tls_type;
 	}
 
       local_plt = end_local_got;
@@ -2260,6 +2393,17 @@ elf32_hppa_size_dynamic_sections (bfd *o
 	    }
 	}
     }
+  
+  if (htab->tls_ldm_got.refcount > 0)
+    {
+      /* Allocate 2 got entries and 1 dynamic reloc for 
+         R_PARISC_TLS_DTPMOD32 relocs.  */
+      htab->tls_ldm_got.offset = htab->sgot->size;
+      htab->sgot->size += (GOT_ENTRY_SIZE * 2);
+      htab->srelgot->size += sizeof (Elf32_External_Rela);
+    }
+  else
+    htab->tls_ldm_got.offset = -1;
 
   /* Do all the .plt entries without relocs first.  The dynamic linker
      uses the last .plt reloc to find the end of the .plt (and hence
@@ -2670,7 +2814,7 @@ get_local_syms (bfd *output_bfd, bfd *in
 		  struct elf32_hppa_stub_hash_entry *hsh;
 
 		  sec = hh->eh.root.u.def.section;
-		  stub_name = hh->eh.root.root.string;
+		  stub_name = hh_name (hh);
 		  hsh = hppa_stub_hash_lookup (&htab->bstab,
 						      stub_name,
 						      FALSE, FALSE);
@@ -3104,6 +3248,35 @@ elf32_hppa_build_stubs (struct bfd_link_
   return TRUE;
 }
 
+/* Return the base vma address which should be subtracted from the real
+   address when resolving a dtpoff relocation.  
+   This is PT_TLS segment p_vaddr.  */
+
+static bfd_vma
+dtpoff_base (struct bfd_link_info *info)
+{
+  /* If tls_sec is NULL, we should have signalled an error already.  */
+  if (elf_hash_table (info)->tls_sec == NULL)
+    return 0;
+  return elf_hash_table (info)->tls_sec->vma;
+}
+
+/* Return the relocation value for R_PARISC_TLS_TPOFF*..  */
+
+static bfd_vma
+tpoff (struct bfd_link_info *info, bfd_vma address)
+{
+  struct elf_link_hash_table *htab = elf_hash_table (info);
+
+  /* If tls_sec is NULL, we should have signalled an error already.  */
+  if (htab->tls_sec == NULL)
+    return 0;
+  /* hppa TLS ABI is variant I and static TLS block start just after 
+     tcbhead structure which has 2 pointer fields.  */
+  return (address - htab->tls_sec->vma 
+	  + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
+}
+
 /* Perform a final link.  */
 
 static bfd_boolean
@@ -3315,6 +3488,12 @@ final_link_relocate (asection *input_sec
     case R_PARISC_DLTIND21L:
     case R_PARISC_DLTIND14R:
     case R_PARISC_DLTIND14F:
+    case R_PARISC_TLS_GD21L:
+    case R_PARISC_TLS_GD14R:
+    case R_PARISC_TLS_LDM21L:
+    case R_PARISC_TLS_LDM14R:
+    case R_PARISC_TLS_IE21L:
+    case R_PARISC_TLS_IE14R:
       value -= elf_gp (input_section->output_section->owner);
       break;
 
@@ -3342,6 +3521,9 @@ final_link_relocate (asection *input_sec
     case R_PARISC_DLTIND14F:
     case R_PARISC_SEGBASE:
     case R_PARISC_SEGREL32:
+    case R_PARISC_TLS_DTPMOD32:
+    case R_PARISC_TLS_DTPOFF32:
+    case R_PARISC_TLS_TPREL32:
       r_field = e_fsel;
       break;
 
@@ -3353,6 +3535,11 @@ final_link_relocate (asection *input_sec
 
     case R_PARISC_DIR21L:
     case R_PARISC_DPREL21L:
+    case R_PARISC_TLS_GD21L:
+    case R_PARISC_TLS_LDM21L:
+    case R_PARISC_TLS_LDO21L:
+    case R_PARISC_TLS_IE21L:
+    case R_PARISC_TLS_LE21L:
       r_field = e_lrsel;
       break;
 
@@ -3366,6 +3553,11 @@ final_link_relocate (asection *input_sec
     case R_PARISC_DIR17R:
     case R_PARISC_DIR14R:
     case R_PARISC_DPREL14R:
+    case R_PARISC_TLS_GD14R:
+    case R_PARISC_TLS_LDM14R:
+    case R_PARISC_TLS_LDO14R:
+    case R_PARISC_TLS_IE14R:
+    case R_PARISC_TLS_LE14R:
       r_field = e_rrsel;
       break;
 
@@ -3460,6 +3652,14 @@ final_link_relocate (asection *input_sec
   return bfd_reloc_ok;
 }
 
+static int
+elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
+				int r_type, int is_local ATTRIBUTE_UNUSED)
+{
+  /* For now we don't support linker optimizations.  */
+  return r_type;
+}
+
 /* Relocate an HPPA ELF section.  */
 
 static bfd_boolean
@@ -3546,7 +3746,7 @@ elf32_hppa_relocate_section (bfd *output
 		  && eh->type == STT_PARISC_MILLI)
 		{
 		  if (! info->callbacks->undefined_symbol
-		      (info, eh->root.root.string, input_bfd,
+		      (info, eh_name (eh), input_bfd,
 		       input_section, rela->r_offset, FALSE))
 		    return FALSE;
 		  warned_undef = TRUE;
@@ -3875,6 +4075,198 @@ elf32_hppa_relocate_section (bfd *output
 	      bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
 	    }
 	  break;
+	  
+	case R_PARISC_TLS_LDM21L:
+	case R_PARISC_TLS_LDM14R:
+	  {
+	    bfd_vma off;
+	
+	    off = htab->tls_ldm_got.offset;
+	    if (off & 1)
+	      off &= ~1;
+	    else
+	      {
+		Elf_Internal_Rela outrel;
+		bfd_byte *loc;
+
+		outrel.r_offset = (off 
+				   + htab->sgot->output_section->vma
+				   + htab->sgot->output_offset);
+		outrel.r_addend = 0;
+		outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
+		loc = htab->srelgot->contents; 
+		loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
+
+		bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+		htab->tls_ldm_got.offset |= 1;
+	      }
+
+	    /* Add the base of the GOT to the relocation value.  */
+	    relocation = (off
+			  + htab->sgot->output_offset
+			  + htab->sgot->output_section->vma);
+
+	    break;
+	  }
+
+	case R_PARISC_TLS_LDO21L:
+	case R_PARISC_TLS_LDO14R:
+	  relocation -= dtpoff_base (info);
+	  break;
+
+	case R_PARISC_TLS_GD21L:
+	case R_PARISC_TLS_GD14R:
+	case R_PARISC_TLS_IE21L:
+	case R_PARISC_TLS_IE14R:
+	  {
+	    bfd_vma off;
+	    int indx;
+	    char tls_type;
+
+	    indx = 0;
+	    if (hh != NULL)
+	      {
+	        bfd_boolean dyn;
+	        dyn = htab->etab.dynamic_sections_created;
+
+		if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh)
+		    && (!info->shared
+			|| !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
+		  {
+		    indx = hh->eh.dynindx;
+		  }
+		off = hh->eh.got.offset;
+		tls_type = hh->tls_type;
+	      }
+	    else
+	      {
+		off = local_got_offsets[r_symndx];
+		tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
+	      }
+
+	    if (tls_type == GOT_UNKNOWN)
+	      abort();
+
+	    if ((off & 1) != 0)
+	      off &= ~1;
+	    else
+	      {
+		bfd_boolean need_relocs = FALSE;
+		Elf_Internal_Rela outrel;
+		bfd_byte *loc = NULL;
+		int cur_off = off;
+
+	        /* The GOT entries have not been initialized yet.  Do it
+	           now, and emit any relocations.  If both an IE GOT and a
+	           GD GOT are necessary, we emit the GD first.  */
+
+		if ((info->shared || indx != 0)
+		    && (hh == NULL
+			|| ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
+			|| hh->eh.root.type != bfd_link_hash_undefweak))
+		  {
+		    need_relocs = TRUE;
+		    loc = htab->srelgot->contents; 
+		    /* FIXME (CAO): Should this be reloc_count++ ? */
+		    loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
+		  }
+
+		if (tls_type & GOT_TLS_GD)
+		  {
+		    if (need_relocs)
+		      {
+			outrel.r_offset = (cur_off
+					   + htab->sgot->output_section->vma
+					   + htab->sgot->output_offset);
+			outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
+			outrel.r_addend = 0;
+			bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
+			bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+			htab->srelgot->reloc_count++;
+			loc += sizeof (Elf32_External_Rela);
+
+			if (indx == 0)
+			  bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
+				      htab->sgot->contents + cur_off + 4);
+			else
+			  {
+			    bfd_put_32 (output_bfd, 0,
+					htab->sgot->contents + cur_off + 4);
+			    outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
+			    outrel.r_offset += 4;
+			    bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
+			    htab->srelgot->reloc_count++;
+			    loc += sizeof (Elf32_External_Rela);
+			  }
+		      }
+		    else
+		      {
+		        /* If we are not emitting relocations for a
+		           general dynamic reference, then we must be in a
+		           static link or an executable link with the
+		           symbol binding locally.  Mark it as belonging
+		           to module 1, the executable.  */
+		        bfd_put_32 (output_bfd, 1,
+				    htab->sgot->contents + cur_off);
+		        bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
+				    htab->sgot->contents + cur_off + 4);
+		      }
+
+
+		    cur_off += 8;
+		  }
+
+		if (tls_type & GOT_TLS_IE)
+		  {
+		    if (need_relocs)
+		      {
+			outrel.r_offset = (cur_off
+					   + htab->sgot->output_section->vma
+					   + htab->sgot->output_offset);
+			outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
+
+			if (indx == 0)
+			  outrel.r_addend = relocation - dtpoff_base (info);
+			else
+			  outrel.r_addend = 0;
+
+			bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+			htab->srelgot->reloc_count++;
+			loc += sizeof (Elf32_External_Rela);
+		      }
+		    else
+		      bfd_put_32 (output_bfd, tpoff (info, relocation),
+				  htab->sgot->contents + cur_off);
+
+		    cur_off += 4;
+		  }
+
+		if (hh != NULL)
+		  hh->eh.got.offset |= 1;
+		else
+		  local_got_offsets[r_symndx] |= 1;
+	      }
+
+	    if ((tls_type & GOT_TLS_GD)
+	  	&& r_type != R_PARISC_TLS_GD21L
+	  	&& r_type != R_PARISC_TLS_GD14R)
+	      off += 2 * GOT_ENTRY_SIZE;
+
+	    /* Add the base of the GOT to the relocation value.  */
+	    relocation = (off
+			  + htab->sgot->output_offset
+			  + htab->sgot->output_section->vma);
+
+	    break;
+	  }
+
+	case R_PARISC_TLS_LE21L:
+	case R_PARISC_TLS_LE14R:
+	  {
+	    relocation = tpoff (info, relocation);
+	    break;
+	  }
+	  break;
 
 	default:
 	  break;
@@ -3887,7 +4279,7 @@ elf32_hppa_relocate_section (bfd *output
 	continue;
 
       if (hh != NULL)
-	sym_name = hh->eh.root.root.string;
+	sym_name = hh_name (hh);
       else
 	{
 	  sym_name = bfd_elf_string_from_elf_section (input_bfd,
@@ -3996,7 +4388,9 @@ elf32_hppa_finish_dynamic_symbol (bfd *o
 	}
     }
 
-  if (eh->got.offset != (bfd_vma) -1)
+  if (eh->got.offset != (bfd_vma) -1
+      && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
+      && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
     {
       /* This symbol has an entry in the global offset table.  Set it
 	 up.  */
@@ -4057,8 +4451,8 @@ elf32_hppa_finish_dynamic_symbol (bfd *o
     }
 
   /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute.  */
-  if (eh->root.root.string[0] == '_'
-      && (strcmp (eh->root.root.string, "_DYNAMIC") == 0
+  if (eh_name (eh)[0] == '_'
+      && (strcmp (eh_name (eh), "_DYNAMIC") == 0
 	  || eh == htab->etab.hgot))
     {
       sym->st_shndx = SHN_ABS;
@@ -4073,6 +4467,17 @@ elf32_hppa_finish_dynamic_symbol (bfd *o
 static enum elf_reloc_type_class
 elf32_hppa_reloc_type_class (const Elf_Internal_Rela *rela)
 {
+  /* Handle TLS relocs first; we don't want them to be marked
+     relative by the "if (ELF32_R_SYM (rela->r_info) == 0)"
+     check below.  */
+  switch ((int) ELF32_R_TYPE (rela->r_info))
+    {
+      case R_PARISC_TLS_DTPMOD32:
+      case R_PARISC_TLS_DTPOFF32:
+      case R_PARISC_TLS_TPREL32:
+        return reloc_class_normal;
+    }
+
   if (ELF32_R_SYM (rela->r_info) == 0)
     return reloc_class_relative;
 
Index: gas/config/tc-hppa.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-hppa.c,v
retrieving revision 1.130
diff -u -p -r1.130 tc-hppa.c
--- gas/config/tc-hppa.c	3 May 2006 14:26:41 -0000	1.130
+++ gas/config/tc-hppa.c	14 May 2006 23:14:45 -0000
@@ -1215,6 +1215,26 @@ static struct default_space_dict pa_def_
   ((exp).X_op == O_subtract			\
    && strcmp (S_GET_NAME ((exp).X_op_symbol), "$PIC_pcrel$0") == 0)
 
+#define is_tls_gdidx(exp)			\
+  ((exp).X_op == O_subtract			\
+   && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_gdidx$") == 0)
+
+#define is_tls_ldidx(exp)			\
+  ((exp).X_op == O_subtract			\
+   && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_ldidx$") == 0)
+
+#define is_tls_dtpoff(exp)			\
+  ((exp).X_op == O_subtract			\
+   && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_dtpoff$") == 0)
+
+#define is_tls_ieoff(exp)			\
+  ((exp).X_op == O_subtract			\
+   && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_ieoff$") == 0)
+
+#define is_tls_leoff(exp)			\
+  ((exp).X_op == O_subtract			\
+   && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_leoff$") == 0)
+
 /* We need some complex handling for stabs (sym1 - sym2).  Luckily, we'll
    always be able to reduce the expression to a constant, so we don't
    need real complex handling yet.  */
@@ -1380,7 +1400,12 @@ fix_new_hppa (frag, where, size, add_sym
      it now so as not to confuse write.c.  Ditto for $PIC_pcrel$0.  */
   if (new_fix->fx_subsy
       && (strcmp (S_GET_NAME (new_fix->fx_subsy), "$global$") == 0
-	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$PIC_pcrel$0") == 0))
+	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$PIC_pcrel$0") == 0
+	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$tls_gdidx$") == 0 
+	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$tls_ldidx$") == 0 
+	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$tls_dtpoff$") == 0
+	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$tls_ieoff$") == 0
+	  || strcmp (S_GET_NAME (new_fix->fx_subsy), "$tls_leoff$") == 0))
     new_fix->fx_subsy = NULL;
 }
 
@@ -1412,6 +1437,18 @@ cons_fix_new_hppa (frag, where, size, ex
     rel_type = R_HPPA_GOTOFF;
   else if (is_PC_relative (*exp))
     rel_type = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+  else if (is_tls_gdidx (*exp))
+    rel_type = R_PARISC_TLS_GD21L;
+  else if (is_tls_ldidx (*exp))
+    rel_type = R_PARISC_TLS_LDM21L;
+  else if (is_tls_dtpoff (*exp))
+    rel_type = R_PARISC_TLS_LDO21L;
+  else if (is_tls_ieoff (*exp))
+    rel_type = R_PARISC_TLS_IE21L;
+  else if (is_tls_leoff (*exp))
+    rel_type = R_PARISC_TLS_LE21L;
+#endif
   else if (is_complex (*exp))
     rel_type = R_HPPA_COMPLEX;
   else
@@ -2974,6 +3011,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 11;
@@ -3093,6 +3142,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 14;
@@ -3123,6 +3184,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 14;
@@ -3147,6 +3220,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 14;
@@ -3171,6 +3256,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 21;
@@ -3196,6 +3293,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 14;
@@ -3222,6 +3331,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 14;
@@ -3248,6 +3369,18 @@ pa_ip (str)
 		    the_insn.reloc = R_HPPA_GOTOFF;
 		  else if (is_PC_relative (the_insn.exp))
 		    the_insn.reloc = R_HPPA_PCREL_CALL;
+#ifdef OBJ_ELF
+		  else if (is_tls_gdidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_GD21L;
+		  else if (is_tls_ldidx (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDM21L;
+		  else if (is_tls_dtpoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LDO21L;
+		  else if (is_tls_ieoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_IE21L;
+		  else if (is_tls_leoff (the_insn.exp))
+		    the_insn.reloc = R_PARISC_TLS_LE21L;
+#endif
 		  else
 		    the_insn.reloc = R_HPPA;
 		  the_insn.format = 14;
@@ -4661,6 +4794,25 @@ md_apply_fix (fixP, valP, seg)
       return;
     }
 
+#ifdef OBJ_ELF
+  switch (fixP->fx_r_type)
+    {
+      case R_PARISC_TLS_GD21L:
+      case R_PARISC_TLS_GD14R:
+      case R_PARISC_TLS_LDM21L:
+      case R_PARISC_TLS_LDM14R:
+      case R_PARISC_TLS_LE21L:
+      case R_PARISC_TLS_LE14R:
+      case R_PARISC_TLS_IE21L:
+      case R_PARISC_TLS_IE14R:
+        if (fixP->fx_addsy)
+	  S_SET_THREAD_LOCAL (fixP->fx_addsy);
+	break;
+      default:
+	break;
+    }
+#endif
+
   /* Insert the relocation.  */
   bfd_put_32 (stdoutput, insn, fixpos);
 }
Index: gas/config/tc-hppa.h
===================================================================
RCS file: /cvs/src/src/gas/config/tc-hppa.h,v
retrieving revision 1.30
diff -u -p -r1.30 tc-hppa.h
--- gas/config/tc-hppa.h	11 Aug 2005 01:25:25 -0000	1.30
+++ gas/config/tc-hppa.h	14 May 2006 23:14:46 -0000
@@ -175,7 +175,12 @@ int hppa_fix_adjustable PARAMS((struct f
 	|| (S_GET_SEGMENT (sym) == &bfd_abs_section \
 	    && ! S_IS_EXTERNAL (sym)) \
 	|| strcmp (S_GET_NAME (sym), "$global$") == 0 \
-	|| strcmp (S_GET_NAME (sym), "$PIC_pcrel$0") == 0) \
+	|| strcmp (S_GET_NAME (sym), "$PIC_pcrel$0") == 0 \
+	|| strcmp (S_GET_NAME (sym), "$tls_gdidx$") == 0 \
+	|| strcmp (S_GET_NAME (sym), "$tls_ldidx$") == 0 \
+	|| strcmp (S_GET_NAME (sym), "$tls_dtpoff$") == 0 \
+	|| strcmp (S_GET_NAME (sym), "$tls_ieoff$") == 0 \
+	|| strcmp (S_GET_NAME (sym), "$tls_leoff$") == 0) \
       punt = 1; \
   }
 
Index: include/elf/hppa.h
===================================================================
RCS file: /cvs/src/src/include/elf/hppa.h,v
retrieving revision 1.20
diff -u -p -r1.20 hppa.h
--- include/elf/hppa.h	20 Mar 2006 01:07:29 -0000	1.20
+++ include/elf/hppa.h	14 May 2006 23:14:47 -0000
@@ -480,8 +480,28 @@ RELOC_NUMBER (R_PARISC_LTOFF_TP16DF,   2
 RELOC_NUMBER (R_PARISC_GNU_VTENTRY,    232)
 RELOC_NUMBER (R_PARISC_GNU_VTINHERIT,  233)
 
+RELOC_NUMBER (R_PARISC_TLS_GD21L,      234)
+RELOC_NUMBER (R_PARISC_TLS_GD14R,      235)
+RELOC_NUMBER (R_PARISC_TLS_GDCALL,     236)
+RELOC_NUMBER (R_PARISC_TLS_LDM21L,     237)
+RELOC_NUMBER (R_PARISC_TLS_LDM14R,     238)
+RELOC_NUMBER (R_PARISC_TLS_LDMCALL,    239)
+RELOC_NUMBER (R_PARISC_TLS_LDO21L,     240)
+RELOC_NUMBER (R_PARISC_TLS_LDO14R,     241)
+RELOC_NUMBER (R_PARISC_TLS_DTPMOD32,   242)
+RELOC_NUMBER (R_PARISC_TLS_DTPMOD64,   243)
+RELOC_NUMBER (R_PARISC_TLS_DTPOFF32,   244)
+RELOC_NUMBER (R_PARISC_TLS_DTPOFF64,   245)
+
 END_RELOC_NUMBERS (R_PARISC_UNIMPLEMENTED)
 
+#define R_PARISC_TLS_LE21L     R_PARISC_TPREL21L
+#define R_PARISC_TLS_LE14R     R_PARISC_TPREL14R
+#define R_PARISC_TLS_IE21L     R_PARISC_LTOFF_TP21L
+#define R_PARISC_TLS_IE14R     R_PARISC_LTOFF_TP14R
+#define R_PARISC_TLS_TPREL32   R_PARISC_TPREL32
+#define R_PARISC_TLS_TPREL64   R_PARISC_TPREL64
+
 #ifndef RELOC_MACROS_GEN_FUNC
 typedef enum elf_hppa_reloc_type elf_hppa_reloc_type;
 #endif


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Subject: [parisc-linux] [PATCH] Add TLS relocs for hppa.
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The following patch adds the TLS relocations required for hppa.

The specification draft for TLS support under hppa-linux is located here:
http://parisc-linux.org/documentation/tls/hppa-tls-implementation.pdf

Original TeX file:
http://cvs.parisc-linux.org/*checkout*/web/src/documentation/tls/hppa-tls-i=
mplementation.tex?content-type=3Dtext%2Fplain

Binutils patches are sent and awaiting approval.
GCC patches for TLS support are already in place.
GLIBC support is in place in libc-ports.

Please commit.

Cheers,
Carlos.

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2006-05-15  Carlos O'Donell  <carlos@systemhalted.org>

	* elf/elf.h (R_PARISC_PLABEL21L, R_PARISC_PLABEL14R,
	R_PARISC_GNU_VTENTRY, R_PARISC_GNU_VTINHERIT, R_PARISC_TLS_GD21L,
	R_PARISC_TLS_GD14R, R_PARISC_TLS_GDCALL, R_PARISC_TLS_LDM21L,
	R_PARISC_TLS_LDM14R, R_PARISC_TLS_LDMCALL, R_PARISC_TLS_LDO21L,
	R_PARISC_TLS_LDO14R, R_PARISC_TLS_DTPMOD32, R_PARISC_TLS_DTPMOD64,
	R_PARISC_TLS_DTPOFF32, R_PARISC_TLS_DTPOFF64, R_PARISC_TLS_LE21L,
	R_PARISC_TLS_LE14R, R_PARISC_TLS_IE21L, R_PARISC_TLS_IE14R,
	R_PARISC_TLS_TPREL32, R_PARISC_TLS_TPREL64): Define.



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Index: elf/elf.h
===================================================================
RCS file: /cvs/glibc/libc/elf/elf.h,v
retrieving revision 1.154
diff -u -p -r1.154 elf.h
--- elf/elf.h	25 Feb 2006 01:57:44 -0000	1.154
+++ elf/elf.h	15 May 2006 00:55:57 -0000
@@ -1704,6 +1704,8 @@ typedef Elf32_Addr Elf32_Conflict;
 #define R_PARISC_LTOFF_FPTR14R	62	/* LT-rel. fct ptr, right 14 bits. */
 #define R_PARISC_FPTR64		64	/* 64 bits function address.  */
 #define R_PARISC_PLABEL32	65	/* 32 bits function address.  */
+#define R_PARISC_PLABEL21L	66	/* Left 21 bits of fdesc address */
+#define R_PARISC_PLABEL14R	70	/* Right 14 bits of fdesc address */
 #define R_PARISC_PCREL64	72	/* 64 bits PC-rel. address.  */
 #define R_PARISC_PCREL22F	74	/* 22 bits PC-rel. address.  */
 #define R_PARISC_PCREL14WR	75	/* PC-rel. address, right 14 bits.  */
@@ -1764,6 +1766,29 @@ typedef Elf32_Addr Elf32_Conflict;
 #define R_PARISC_LTOFF_TP16F	229	/* 16 bits LT-TP-rel. address.  */
 #define R_PARISC_LTOFF_TP16WF	230	/* 16 bits LT-TP-rel. address.  */
 #define R_PARISC_LTOFF_TP16DF	231	/* 16 bits LT-TP-rel. address.  */
+
+#define R_PARISC_GNU_VTENTRY    232
+#define R_PARISC_GNU_VTINHERIT  233
+#define R_PARISC_TLS_GD21L      234	/* GD 21-bit left */
+#define R_PARISC_TLS_GD14R      235	/* GD 14-bit right */
+#define R_PARISC_TLS_GDCALL     236	/* GD call to __t_g_a */
+#define R_PARISC_TLS_LDM21L     237	/* LD module 21-bit left */
+#define R_PARISC_TLS_LDM14R     238	/* LD module 14-bit right */
+#define R_PARISC_TLS_LDMCALL    239	/* LD module call to __t_g_a */
+#define R_PARISC_TLS_LDO21L     240	/* LD offset 21-bit left */
+#define R_PARISC_TLS_LDO14R     241	/* LD offset 14-bit right */
+#define R_PARISC_TLS_DTPMOD32   242	/* DTP module 32-bit */
+#define R_PARISC_TLS_DTPMOD64   243	/* DTP module 64-bit */
+#define R_PARISC_TLS_DTPOFF32   244	/* DTP offset 32-bit */
+#define R_PARISC_TLS_DTPOFF64   245	/* DTP offset 32-bit */
+
+#define R_PARISC_TLS_LE21L      R_PARISC_TPREL21L
+#define R_PARISC_TLS_LE14R      R_PARISC_TPREL14R
+#define R_PARISC_TLS_IE21L      R_PARISC_LTOFF_TP21L
+#define R_PARISC_TLS_IE14R      R_PARISC_LTOFF_TP14R
+#define R_PARISC_TLS_TPREL32    R_PARISC_TPREL32
+#define R_PARISC_TLS_TPREL64    R_PARISC_TPREL64
+
 #define R_PARISC_HIRESERVE	255
 
 /* Legal values for p_type field of Elf32_Phdr/Elf64_Phdr.  */


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> pr #27627
> include the test case and the precompile stuff.

A simpler testcase is to simply print '__builtin_nanf("")' in hex.
This is totally independent of the parisc-linux implementation.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: hppa64-...-gcc-4.1 annoying pb?
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> Just a follow up; if I well uderstand, the compilation cmdl with -v option
> return me:
> [snip]
> Thread model: single
> gcc version 4.1.1 20060511 (prerelease) (Debian 4.1.0-4)
>  /usr/lib/gcc/hppa64-linux-gnu/4.1.1/cc1 -quiet -nostdinc -v -Iinclude
> -Iinclude2 -I/CAD/linux-2.6.17-rc4-pa1/include -I/CAD/linux-2.6.17-rc4-pa1/mm
> -Imm -D__KERNEL__ -DKBUILD_STR(s)=#s -DKBUILD_BASENAME=KBUILD_STR(page_alloc)
> -DKBUILD_MODNAME=KBUILD_STR(page_alloc) -isystem
> /usr/lib/gcc/hppa64-linux-gnu/4.1.1/include -include include/linux/autoconf.h
> -MD mm/.page_alloc.o.d /CAD/linux-2.6.17-rc4-pa1/mm/page_alloc.c -quiet
> -dumpbase page_alloc.c -mno-space-regs -mfast-indirect-calls -mdisable-fpregs
> -march=2.0 -mschedule=8000 -auxbase-strip mm/.tmp_page_alloc.o -O2 -Wall
> -Wundef -Wstrict-prototypes -Wno-trigraphs -Wdeclaration-after-statement
> -Wno-pointer-sign -version -fno-strict-aliasing -fno-common
> -fomit-frame-pointer -ffunction-sections -o - |
>  /usr/bin/hppa64-linux-gnu-as --traditional-format -V -o mm/.tmp_page_alloc.o -

Joel, would you send me offline the preprocessed .i file for the above.
I would like to try the compilation on a machine with more memory.  It's
a bit surprising that most of the time is spent in the expand pass.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: [parisc-linux] Missing POSIX_MADV_* defines in bits/mman.h
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This is a multi-part message in MIME format.

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Hi all,

I was wondering why does the hppa glibc misses all the POSIX_MADV_* defines from bits/mman.h and jbailey confirmed that it's a bug and shouldn't be missing.

This trivial copy/paste patch attached fix this lack.


Cheers,
  Guy

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Add the missing POSIX bits for memory advisory information and alignment control on hppa.

Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>

diff -uNr glibc-2.3.6.orig/sysdeps/unix/sysv/linux/hppa/bits/mman.h glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/bits/mman.h
--- glibc-2.3.6.orig/sysdeps/unix/sysv/linux/hppa/bits/mman.h	2006-05-23 23:58:44.000000000 +0200
+++ glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/bits/mman.h	2006-05-23 23:59:18.000000000 +0200
@@ -81,3 +81,12 @@
 #ifdef __USE_GNU
 # define MREMAP_MAYMOVE 1
 #endif
+
+/* The POSIX people had to invent similar names for the same things.  */
+#ifdef __USE_XOPEN2K
+# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
+# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
+# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
+# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
+# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
+#endif

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Hi Guy,

On Wednesday 24 May 2006 01:39, Guy Martin wrote:
> I was wondering why does the hppa glibc misses all the POSIX_MADV_* defines from bits/mman.h and jbailey confirmed that it's a bug and shouldn't be missing.
> 
> This trivial copy/paste patch attached fix this lack.

Thanks for noticing!

But your patch misses at least the "new" madvise() parameters as well:
/* common/generic parameters */
#define MADV_REMOVE     9               /* remove these pages & resources */
#define MADV_DONTFORK   10              /* don't inherit across fork */
#define MADV_DOFORK     11              /* do inherit across fork */

See: http://cvs.parisc-linux.org/linux-2.6/include/asm-parisc/mman.h?view=markup

Helge
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: Re: [parisc-linux] Missing POSIX_MADV_* defines in bits/mman.h
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To: "Helge Deller" <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:23696

On 5/24/06, Helge Deller <deller@gmx.de> wrote:
> Thanks for noticing!
>
> But your patch misses at least the "new" madvise() parameters as well:
> /* common/generic parameters */
> #define MADV_REMOVE     9               /* remove these pages & resources=
 */
> #define MADV_DONTFORK   10              /* don't inherit across fork */
> #define MADV_DOFORK     11              /* do inherit across fork */
>
> See: http://cvs.parisc-linux.org/linux-2.6/include/asm-parisc/mman.h?view=
=3Dmarkup

Helge,

Be careful that these are the non-POSIX definitions. They also need to
be added to glibc. I'll do that right now.

Cheersr,
Carlos.



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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] Fw:Some questions about your clone.S patch for glibc
	hppa port:
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Xref: news.gmane.org gmane.linux.ports.parisc:23697

Hello Carlos,

Sorry, I did have any more cvs access (here at the office) to grab latest=
 cvs
stuff (to be able to present you a patch idea) but I have few questions:

    1/ could we (/you/I), use some macro of hppa/sysdep.h.diff like:
        SAVE_PIC(SREG), LOAD_PIC(LREG) that would look like:
[snip]
-       /* Save the PIC register. */
-#ifdef PIC
-       stw     %r19,-32(%sr0, %sp)     /* parent */
-#endif
+       SAVE_PIC (TREG)
[snip]
-       /* Restore the PIC register on error */
-#ifdef PIC
-       ldw     -32(%sr0, %sp), %r19    /* parent */
-#endif
+       LOAD_PIC (TREG)
[snip]

    2/ and may be also some SYS_ify like :
-       ldi     __NR_clone,%r20
+       ldi             SYS_ify (clone), %r20


But that's just some change in writing. Otoh, I much more worry of some
functional detail:
[snip]
+	/* Something bad happened -- no child created */
+.Lerror:
+
+	/* Set errno, save ret0 so we return with that value. */
+	copy	%ret0, %r3
 	b	__syscall_error
 	sub     %r0,%ret0,%arg0
+	copy	%r3, %ret0
+	/* Return after setting errno, and restoring ret0 */
+	bv	%r0(%rp)
+	ldwm	-64(%sp), %r3
[snip]

The idea is about "b	__syscall_error".

Afaik, this would be actualy translated as "b,l __syscall_error, r0"?

If yes (as test makes me believe), you would lost rp and __syscall_error(=
)
couldn't return to "copy r3,ret0"?

Thanks in advance for your attention,
    Joel

=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devenez au=
jourd'hui Scarlet One grace a un client existant de Scarlet, vous recevez=
 tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur http:/=
/www.clubscarlet.be

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Subject: [parisc-linux] Re: HPMC in ppa_init()
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Xref: news.gmane.org gmane.linux.ports.parisc:23698


1) Please _always_ keep the parisc-linux mailing list copied
   on kernel bug reports.

2) Please send email in "text/plain" format.
   I ignored everything you wrote in HTML.

3) Comments that follow are based on the Console output that you included.
   (Thanks - that's what I really needed)

> Backtrace:
>  [<10113644>] inb+0x60/0x7c
>  [<103a15ec>] ppa_init+0x144/0x258
>  [<103a3138>] __ppa_attach+0x1c0/0x340
>  [<102a5810>] parport_register_driver+0x84/0x124
>  [<10568950>] do_initcalls+0x58/0xf8
>  [<10103908>] init+0x44/0x158
>  [<1010bc5c>] ret_from_kernel_thread+0x1c/0x24

You will have to disable SCSI_PPA driver from your config.
It might be easiest to manually remove the driver from
the initrd.img file and from the /lib/modules on the root disk.

I looked at ppa_init() and it looks quite broken for hppa.
The problem is stuff like this:
static int ppa_byte_in(unsigned short base, char *buffer, int len)

"base" needs to be u32 (unsigned int).
parisc-linux needs more than 16 bits to represent an IO port address.
This _could_ work if the parallel port were under PCI Bus 0 _and_
no other garbage is in the top 16 bits of the register.

hth,
grant

On Thu, May 25, 2006 at 09:19:29PM +0900, ?????? wrote:
> <style> p {margin-top:0px;margin-bottom:0px;} </style><table border=3D0 w=
idth=3D100% bgcolor=3D'' cellpadding=3D0 cellspacing=3D0 align=3Dcenter><tr=
><td valign=3Dtop style=3D'padding:8pt;'><font size=3D2><P>Hi,</P>
> <P>.</P>
> <P>Sorry for late cause of my long travel.</P>
> <P>I'm tring to upgrade&nbsp;a kernel&nbsp;to&nbsp;2-6-15&nbsp;using 2-6-=
8 &nbsp;on hppa machine.<BR>There is more log information on the attated fi=
le.</P>
> <P>&nbsp;</P>
> <P>Package : kernel-image-2.6.15</P>
> <P>Base kernel version : 2-6-8</P>
> <P>Addressing : 32bit kernel</P>
> <P>Problem : Boot error</P>
> <P>Console message :</P>
> <P>Kernel panic: not syncing : High priority machine check (HPMC)</P>
> <P>&nbsp;</P>
> <P>Here is the information about HP server.<BR>Machime:&nbsp;HP C200</P>
> <P>CPU:&nbsp;PA8200 (PCX-U+)</P>
> <P>Memory: 256MB</P>
> <P>&nbsp;</P>
> <P>Could you please give me some tips to boot ?</P>
> <P>.</P>
> <P>Warm regards,</P>
> <P>Son</P>
> <P><BR><BR><BR>&nbsp;</P>
> <BLOCKQUOTE style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: =
5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">---------[ ???? ???=
? ???? ]----------<BR><B>???? : </B>Re: kernel compile - HPMC error<BR><B>?=
??? : </B>2006/04/27 22:21<BR><B>?????? : </B>Grant Grundler &lt;grundler@p=
arisc-linux.org&gt;<BR><B>?????? : </B>?????? &lt;jyson@datatek.co.kr&gt;<B=
R><BR>
> <STYLE> p {margin-top:0px;margin-bottom:0px;} </STYLE>
>=20
> <TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"90%" align=3Dcenter borde=
r=3D0>
> <TBODY>
> <TR>
> <TD style=3D"PADDING-RIGHT: 8pt; PADDING-LEFT: 8pt; PADDING-BOTTOM: 8pt; =
PADDING-TOP: 8pt" vAlign=3Dtop><PRE><PRE>Hi,
> I found this in my spam folder...can you please resend this
> as "Plain Text" (no HTML).
>=20
> Secondly, some guidance on how to report parisc-linux kernel bugs=20
> is available here:
> 	http://www.parisc-linux.org/faq/kernelbug-howto.html
>=20
> thanks,
> grant
>=20
> On Fri, Apr 14, 2006 at 10:30:12PM +0900, ?????? wrote:
> &gt; &lt;style&gt; p {margin-top:0px;margin-bottom:0px;} &lt;/style&gt;&l=
t;table border=3D0 width=3D100% bgcolor=3D'' cellpadding=3D0
> cellspacing=3D0 align=3Dcenter&gt;&lt;tr&gt;&lt;td valign=3Dtop style=3D'=
padding:8pt;'&gt;&lt;font size=3D2&gt;&lt;P&gt; &lt;/P&gt;
> &gt; &lt;P&gt;Hi.&lt;/P&gt;
> &gt; &lt;P&gt;&amp;nbsp;&lt;/P&gt;
> &gt; &lt;P&gt;I'm tring to make a kernel booting on hppa-debian linux.&lt=
;/P&gt;
> &gt; &lt;P&gt;I need a vmlinux and It has to be modified for me.&lt;/P&gt;
> &gt; &lt;P&gt;&amp;nbsp;&lt;/P&gt;
> &gt; &lt;P&gt;finally, I gained&amp;nbsp;a vmlinux but It didn't know any=
 hard disk.&lt;/P&gt;
> &gt; &lt;P&gt;I opened the /proc/partitions file, but there were nothing.=
&lt;/P&gt;
> &gt; &lt;P&gt;&amp;nbsp;&lt;/P&gt;
> &gt; &lt;P&gt;somedays after, &lt;/P&gt;
> &gt; &lt;P&gt;I found my machine needs a GSCtoPCI/Dino PCI support option=
 in kernel configuration.&lt;/P&gt;
> &gt; &lt;P&gt;when It&amp;nbsp;was booting the vmlinux knew two hard disk=
=2E yes, I have a two hard disk.&lt;/P&gt;
> &gt; &lt;P&gt;but during boot HPMC error accurred.&lt;/P&gt;
> &gt; &lt;P&gt;&amp;nbsp;&lt;/P&gt;
> &gt; &lt;P&gt;I think they are some mismatch each other between H/W and S=
/W or S/W and S/W or their version. my cpu is PA8200
> (PCX-U+)&lt;/P&gt;
> &gt; &lt;P&gt;How I can check them???&lt;/P&gt;&lt;/font&gt;&lt;/td&gt;&l=
t;/tr&gt;&lt;/table&gt;
> &gt;=20
> </PRE></PRE></FONT></TD></TR></TBODY></TABLE></BLOCKQUOTE></font></td></t=
r></table>

> =00
>=20
>=20
> Firmware Version  5.1
>=20
> Duplex Console IO Dependent Code (IODC) revision 1
>=20
> -------------------------------------------------------------------------=
-----
> =0D   (c) Copyright 1995-1998, Hewlett-Packard Company, All rights reserv=
ed
> =0D----------------------------------------------------------------------=
--------
>=20
> =0D  Processor   Speed            State           Coprocessor State  I/D =
Cache=20
> =0D  ---------  --------   ---------------------  -----------------  ----=
---------
> =0D      0      200 MHz    Active                 Functional         512 =
KB/1 MB
>=20
> =0D  Central Bus Speed (in MHz) :        120
>=20
> =0D  Available memory (bytes)    : 268435456
> =0D  Good memory required (bytes):          0 (Not Set by OS)
> =0D  Primary boot path:    FWSCSI.6.0
> =0D  Alternate boot path:  0.0
> =0D  Console path:         0.0
> =0D  Keyboard path:        PS2
> =0D
> =0DCPU 0
> =0DWARNING:  Memory configuration is not optimized for performance. Refer
>           to the System Installation or Memory Installation manuals for=
=20
>           memory configuration guidelines.
> WARNING:  Memory SIMMs are not installed in the proper sequence. Refer
>           to the System Installation or Memory Installation manuals for
>           memory configuration guidelines.
>=20
>=20
> =0DSearching for device(s) with bootable media...
> =0DThis may take several minutes.
>=20
> =0DTo discontinue search, press any key (termination may not be immediate=
).
>=20
>=20
> =0D   Path Number        Device Path              Device Type and Utiliti=
es
> =0D   -----------        -----------------        -----------------------=
--
> =0D   P0                 FWSCSI.6.0               SEAGATE ST34572WS      =
=20
> =0D                                               IPL
> =0D   P1                 FWSCSI.5.0               SEAGATE ST19171W       =
=20
> =0D                                               IPL
>=20
>=20
> =0D
> =0DEnter Path Number or Device Path to continue boot sequence.  Enter NO =
to go
> =0Dto main menu.
> =0D> sea
> =0D
> =0DERROR:  Bad argument(s)
> =0D
> =0D
> =0DEnter Path Number or Device Path to continue boot sequence.  Enter NO =
to go
> =0Dto main menu.
> =0D> no
>=20
> =0D------- Main Menu ----------------------------------------------------=
---------
>=20
> =0D        Command                         Description
> =0D        -------                         -----------
> =0D        BOot [PRI|ALT|<path>]           Boot from specified path
> =0D        PAth [PRI|ALT|CON|KEY] [<path>] Display or modify a path
> =0D        SEArch [DIsplay|IPL] [<path>]   Search for boot devices
>=20
> =0D        COnfiguration [<command>]       Access Configuration menu/comm=
ands
> =0D        INformation [<command>]         Access Information menu/comman=
ds
> =0D        SERvice [<command>]             Access Service menu/commands
>=20
> =0D        DIsplay                         Redisplay the current menu
> =0D        HElp [<menu>|<command>]         Display help for menu or comma=
nd
> =0D        RESET                           Restart the system
> =0D-------
> =0DMain Menu: Enter command > sea
>=20
> =0DSearching for potential boot device(s)...
> =0DThis may take several minutes.
>=20
> =0DTo discontinue search, press any key (termination may not be immediate=
).
>=20
>=20
> =0D   Path Number        Device Path              Device Type
> =0D   -----------        -----------------        -----------
> =0D   P0                 SESCSI.2.0               SONY    CD-ROM CDU-76S =
=20
> =0D   P1                 FWSCSI.6.0               SEAGATE ST34572WS      =
=20
> =0D   P2                 FWSCSI.5.0               SEAGATE ST19171W       =
=20
>=20
>=20
> =0DMain Menu: Enter command > bo p2
> =0DInteract with IPL (Y, N, Q)?> y
> =0D
> Booting...=20
> Boot IO Dependent Code (IODC) revision 1
>=20
>=20
> HARD Booted.
> palo ipl 1.5 root@c3k Fri May 14 16:17:38 MDT 2004
> =0DSkipping extended partition 6 - beyond reach of IPL
> =0D
> =0DPartition Start(MB) End(MB) Id Type
> =0D=0D1               1      31   f0 Palo
> =0D=0D2              32     156   83 ext2
> =0D=0D5             157    5404   83 ext2
> =0D
> =0DPALO(F0) partition contains:
> =0D    0/vmlinux32 4973737 bytes @ 0x48000
>=20
> =0DInformation: No console specified on kernel command line. This is norm=
al.
> =0DPALO will choose the console currently used by firmware (serial).Curre=
nt command line:
> =0D2/vmlinux root=3D/dev/sda5 initrd=3D2/initrd.img HOME=3D/ console=3Dtt=
yS0 TERM=3Dvt102
> =0D 0: 2/vmlinux
> =0D 1: root=3D/dev/sda5
> =0D 2: initrd=3D2/initrd.img
> =0D 3: HOME=3D/
> =0D 4: console=3DttyS0
> =0D 5: TERM=3Dvt102
>=20
> =0D<#>    edit the numbered field
> =0D'b'    boot with this command line
> =0D'r'    restore command line
> =0D'l'    list dir
> =0D? 0
> =0D2/vmlinux_0405_4
> =0DCurrent command line:
> =0D2/vmlinux_0405_4 root=3D/dev/sda5 initrd=3D2/initrd.img HOME=3D/ conso=
le=3DttyS0 TERM=3Dvt102
> =0D 0: 2/vmlinux_0405_4
> =0D 1: root=3D/dev/sda5
> =0D 2: initrd=3D2/initrd.img
> =0D 3: HOME=3D/
> =0D 4: console=3DttyS0
> =0D 5: TERM=3Dvt102
>=20
> =0D<#>    edit the numbered field
> =0D'b'    boot with this command line
> =0D'r'    restore command line
> =0D'l'    list dir
> =0D? 0=08 =08b
>=20
> =0DCommand line for kernel: 'root=3D/dev/sda5 HOME=3D/ console=3DttyS0 TE=
RM=3Dvt102 palo_kernel=3D2/vmlinux_0405_4'
> =0DSelected kernel: /vmlinux_0405_4 from partition 2
> =0DSelected ramdisk: /initrd.img from partition 2
> =0DELF32 executable
> =0DEntry 00100000 first 00100000 n 2
> =0DSegment 0 load 00100000 size 3823404 mediaptr 0x1000
> =0DSegment 1 load 004a6000 size 1151110 mediaptr 0x3a7000
> =0DLoading ramdisk 4972544 bytes @ 0fb30000...
> =0DBranching to kernel entry point 0x00100000.  If this is the last
> =0Dmessage you see, you may need to switch your console.  This is
> =0Da common symptom -- search the FAQ and mailing list at parisc-linux.org
>=20
> =0DLinux version 2.6.15.4 (root@datatek) (gcc version 3.3.5 (Debian 1:3.3=
=2E5-13)) #14 Sat Mar 6 12:46:17 KST 2027
> FP[0] enabled: Rev 0 Model 14
> The 32-bit Kernel has started...
> Initialized PDC Console for debugging.
> Determining PDC firmware type: System Map.
> model 000059d0 00000481 00000000 00000002 77647a2b 100000f0 00000008 0000=
00b2 000000b2
> vers  00000501
> CPUID vers 14 rev 23 (0x000001d7)
> capabilities 0x2
> model 9000/782/C200+
> Total Memory: 256 MB
> initrd: 1fb30000-1ffee000
> initrd: reserving 0fb30000-0ffee000 (mem_max 10000000)
> LED display at f0190001 registered
> Built 1 zonelists
> Kernel command line: root=3D/dev/sda5 HOME=3D/ console=3DttyS0 TERM=3Dvt1=
02 palo_kernel=3D2/vmlinux_0405_4
> PID hash table entries: 2048 (order: 11, 32768 bytes)
> Console: colour dummy device 160x64
> Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
> Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
> Memory: 262144k available
> Mount-cache hash table entries: 512
> checking if image is initramfs...it isn't (bad gzip magic numbers); looks=
 like an initrd
> NET: Registered protocol family 16
> EISA bus registered
> Searching for devices...
> Found devices:
> 1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0xf, 0x580, 0x0000b }
> 2. Dino PCI Bridge at 0xf2000000 [8/0] { 13, 0x3, 0x680, 0x0000a },  addi=
tional addresses: 0xf2800000=20
> 3. Raven U/L2 Dino RS-232 at 0xf2003000 [8/0/63] { 10, 0x0, 0x006, 0x0008=
c }
> 4. Raven+ w SE FWSCSI Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x056, 0x00=
081 },  additional addresses: 0xffd0c000 0xffc00000=20
> 5. Raven+ w SE FWSCSI Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x056=
, 0x0008c }
> 6. Raven+ w SE FWSCSI Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x056, =
0x00082 }
> 7. Raven+ w SE FWSCSI Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0=
x056, 0x00074 },  additional addresses: 0xffd01000 0xffd03000=20
> 8. Raven+ w SE FWSCSI Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x056,=
 0x0007b }
> 9. Raven+ w SE FWSCSI Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x=
056, 0x00084 }
> 10. Raven+ w SE FWSCSI Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0=
x056, 0x00084 }
> 11. U2-IOA BC GSC+ Port at 0xf203f000 [8/63] { 7, 0x1, 0x501, 0x0000c }
> 12. Raven U/L2 Dino PS/2 Port at 0xf2001000 [8/1] { 10, 0x0, 0x006, 0x000=
96 }
> 13. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0xf, 0x580, 0x0000b }
> 14. Coral SGC Graphics at 0xf6000000 [10/12] { 10, 0x0, 0x004, 0x00077 }
> 15. U2-IOA BC GSC+ Port at 0xf103f000 [10/63] { 7, 0x1, 0x501, 0x0000c }
> 16. Cujo PCI Bridge at 0xf1000000 [10/0] { 13, 0x1, 0x682, 0x0000a }
> 17. Dino RS-232 at 0xf1003000 [10/3] { 10, 0x0, 0x007, 0x0008c }
> 18. Raven U 200 (9000/780/C200) at 0xfffa0000 [32] { 0, 0x0, 0x59d, 0x000=
04 }
> 19. Memory at 0xfffb1000 [49] { 1, 0x0, 0x05d, 0x00009 }
> CPU(s): 1 x PA8200 (PCX-U+) at 200.000000 MHz
> Setting cache flush threshold to 2c0 (1 CPUs online)
> Found U2 at 0xfff88000
> Found U2 at 0xfff8a000
> Lasi version 0 at 0xffd00000 found.
> Dino version 3.1 found at 0xf2000000
> Cujo version 2.0 found at 0xf1000000
> Enabling Cujo 2.0 bug workaround
> Cujo: No PCI devices enabled.
> SCSI subsystem initialized
> unwind_init: start =3D 0x104a7af0, end =3D 0x104d86f0, entries =3D 12480
> NTFS driver 2.1.25 [Flags: R/O].
> JFS: nTxBlock =3D 1946, nTxLock =3D 15569
> io scheduler noop registered
> io scheduler deadline registered
> PDC Stable Storage facility v0.09
> Soft power switch enabled, polling @ 0xf0140000.
> STI GSC/PCI core graphics driver Version 0.9a
>     id 2d08c0a7-9a02587, conforms to spec rev. 8.07
>     graphics card name: HPA4450AX1280
> sticon: Initializing STI text console.
> Console: switching to colour STI console 160x64
> Console: switching to colour frame buffer device 160x64
> fb0: stifb 1280x1024-8 frame buffer device, HPA4450AX1280, id: 2d08c0a7, =
mmio: 0xf6100000
> tipar: parallel link cable driver, version 1.19
> Generic RTC Driver v1.07
> ppdev: user-space parallel port driver
> parkbd: no such parport
> serio: GSC PS/2 keyboard port at 0xffd08000 irq 20 @ 8:16:7
> serio: GSC PS/2 mouse port at 0xffd08100 irq 20 @ 8:16:8
> HP SDC: No SDC found.
> HP SDC MLC: Registering the System Domain Controller's HIL MLC.
> HP SDC MLC: Request for raw HIL ISR hook denied
> Serial: 8250/16550 driver $Revision: 1.90 $ 16 ports, IRQ sharing enabled
> 8:16:4: ttyS0 at MMIO 0xffd05800 (irq =3D 16) is a 16550A
> 8:0:63: ttyS1 at MMIO 0xf2003800 (irq =3D 21) is a 16550A
> =0Dparport_init_chip: initialize bidirectional-mode.
> =0Dparport0: PC-style at 0xffd02800, irq 18 [PCSPP,TRISTATE]
> =0Dtipar0: using parport0 (interrupt-driven)
> =0Dtipar0: link cable not found
> =0DRAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
> =0Dloop: loaded (max 8 devices)
> =0DCompaq SMART2 Driver (v 2.6.0)
> =0DHP CISS Driver (v 2.6.8)
> =0DUniform Multi-Platform E-IDE driver Revision: 7.00alpha2
> =0Dide: Assuming 33MHz system bus speed for PIO modes; override with ideb=
us=3Dxx
> =0DLoading Adaptec I2O RAID: Version 2.4 Build 5go
> =0DDetecting Adaptec I2O RAID controllers...
> =0DAdaptec aacraid driver (1.1-4 Mar  6 2027 12:26:05)
> =0Dsym0: <875> rev 0x4 at pci 0000:00:13.0 irq 22
> =0Dsym0: No NVRAM, ID 7, Fast-20, SE, parity checking
> =0Dsym0: SCSI BUS has been reset.
> =0Dscsi0 : sym-2.2.1
> =0D  Vendor: SEAGATE   Model: ST19171W          Rev: HP08
> =0D  Type:   Direct-Access                      ANSI SCSI revision: 02
> =0D target0:0:5: tagged command queuing enabled, command queue depth 16.
> =0D target0:0:5: Beginning Domain Validation
> =0D target0:0:5: asynchronous.
> =0D target0:0:5: wide asynchronous.
> =0D target0:0:5: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
> =0D target0:0:5: Domain Validation skipping write tests
> =0D target0:0:5: Ending Domain Validation
> =0D  Vendor: SEAGATE   Model: ST34572WS         Rev: HP00
> =0D  Type:   Direct-Access                      ANSI SCSI revision: 02
> =0D target0:0:6: tagged command queuing enabled, command queue depth 16.
> =0D target0:0:6: Beginning Domain Validation
> =0D target0:0:6: asynchronous.
> =0D target0:0:6: wide asynchronous.
> =0D target0:0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 15)
> =0D target0:0:6: Domain Validation skipping write tests
> =0D target0:0:6: Ending Domain Validation
> =0Dmegaraid cmm: 2.20.2.6 (Release Date: Mon Mar 7 00:01:03 EST 2005)
> =0Dmegaraid: 2.20.4.6 (Release Date: Mon Mar 07 12:27:22 EST 2005)
> =0Dmegasas: 00.00.02.00-rc4 Fri Sep 16 12:37:08 EDT 2005
> =0D3ware Storage Controller device driver for Linux v1.26.02.001.
> =0D3ware 9000 Storage Controller device driver for Linux v2.26.02.004.
> =0Dppa: Version 2.07 (for Linux 2.4.x)
> =0D
>=20
> Backtrace:
> =0D [<10113644>] inb+0x60/0x7c
> =0D [<103a15ec>] ppa_init+0x144/0x258
> =0D [<103a3138>] __ppa_attach+0x1c0/0x340
> =0D [<102a5810>] parport_register_driver+0x84/0x124
> =0D [<10568950>] do_initcalls+0x58/0xf8
> =0D [<10103908>] init+0x44/0x158
> =0D [<1010bc5c>] ret_from_kernel_thread+0x1c/0x24
>=20
>=20
> =0DHigh Priority Machine Check (HPMC): Code=3D1 regs=3D104e3080 (Addr=3D0=
0000000)
>=20
> =0D     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> =0DPSW: 00000000000001000000000000001100 Not tainted
> =0Dr00-03  00000000 105ce010 10113644 1f2df840
> =0Dr04-07  00002801 00000002 00002802 00000008
> =0Dr08-11  00002800 ffffffff 105ce8c8 104f0ad8
> =0Dr12-15  3b9aca00 105ce810 104f1010 f0100000
> =0Dr16-19  f000167c f00001f8 f00001f0 f200006d
> =0Dr20-23  0000000e 0000000f 10258c38 00000000
> =0Dr24-27  0000000e 00000001 1f5d2c00 104d9010
> =0Dr28-31  00000020 000000c8 1fb042c0 10113644
> =0Dsr0-3   00000000 00000000 00000000 00000000
> =0Dsr4-7   00000000 00000000 00000000 00000000
>=20
> =0D      VZOUICununcqcqcqcqcqcrmunTDVZOUI
> =0DFPSR: 00000100000011100000000000000000
> =0DFPER1: 24850e03
> =0Dfr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000=
000000
> =0Dfr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000=
000000
> =0Dfr08-11  0000000000000000 0000000000000000 0000000000000000 0000000000=
000000
> =0Dfr12-15  0000000000000000 0000000000000000 0000000000000000 0000000000=
000000
> =0Dfr16-19  0000000000000000 0000000000000000 0000000000000000 0000000000=
000000
> =0Dfr20-23  0000000000000000 0000000000000000 0000000000000000 0000000000=
000000
> =0Dfr24-27  0000000000000000 0000000000000000 0000000000000000 0000000000=
000000
> =0Dfr28
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Subject: Re: [parisc-linux] Re: HPMC in ppa_init()
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Xref: news.gmane.org gmane.linux.ports.parisc:23699

On Thu, 2006-05-25 at 09:02 -0600, Grant Grundler wrote:
> You will have to disable SCSI_PPA driver from your config.
> It might be easiest to manually remove the driver from
> the initrd.img file and from the /lib/modules on the root disk.
> 
> I looked at ppa_init() and it looks quite broken for hppa.
> The problem is stuff like this:
> static int ppa_byte_in(unsigned short base, char *buffer, int len)

> "base" needs to be u32 (unsigned int).
> parisc-linux needs more than 16 bits to represent an IO port address.
> This _could_ work if the parallel port were under PCI Bus 0 _and_
> no other garbage is in the top 16 bits of the register.

It's not just this.  ppa and imm are pretty broken even on x86:   they
don't use kmap to access the pio data, so they only work in memory from
ZONE_NORMAL ... this probably doesn't affect parisc since we don't have
a ZONE_HIGHMEM, however any READ_ command will go into the kernel's view
of the memory without cache flushing, so it's probable we'd get nasty
cache coherency issues.

James


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Xref: news.gmane.org gmane.linux.ports.parisc:23700

Hello,

Grant Grundler wrote:
[snip]
> CPU 0
> 
> WARNING:  Memory configuration is not optimized for performance. Refer
> 
>>          to the System Installation or Memory Installation manuals for 
>>          memory configuration guidelines.
>>WARNING:  Memory SIMMs are not installed in the proper sequence. Refer
>>          to the System Installation or Memory Installation manuals for
>>          memory configuration guidelines.
>>
That will not resolve your pb but as I recently encounter such warning and know now that it's usefull, I would also take care of 
those messages. (may be simply check if all memory chips are pluged in correctly and 'in proper sequence')

Hth 2,
	Joel
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: [parisc-linux] Close to mainline for hppa-linux TLS.
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Randolph,

This email documents our current TLS status. It does not document our
NPTL status.

- All gcc changes are in mainline.
- All binutils changes are in mainline.
- The following libc patch is from my local tree.
- The following linuxthreads patch if from my local tree.
- The following libc-ports patch is from my local tree.

To build a TLS enabled linuxhtreads:

1. Use any gcc with TLS patches.
2. Use mainline binutils.
3. Checkout libc, apply libc patch.
4. Checkout linuxthreads, apply linuxthreads patch.
5. Checkout libc-ports, apply libc-ports patch.
6. Move libc-ports to libc/ports/
7. Move linuxthreads to libc/linuxthreads-head/
8. cd libc/; mkdir linuxhtreads; cd linuxthreads;
    lndir ../linuxthreads-head/linuxthreads ".";
    cd ..; mkdir linuxthreads_db; cd linuxthreads_db;
    lndir ../linuxthreads-head/linuxthreads_db ".";
    After this you should have two shadow directories
    for linuxhtreads and linuxthreads_db.
9. Configure libc with:
    --target=3Dhppa-linux
    --host=3Dhppa-linux
    --build=3Dhpp-linux
    --disable-sanity-checks
    --prefix=3D<Your choice>
    --enable-add-ons=3Dports,linuxthreads
10. make.
11. make -k check

Observe failures :)

Cheers,
Carlos.

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Index: sysdeps/unix/sysv/linux/hppa/Versions
===================================================================
RCS file: /cvs/glibc/ports/sysdeps/unix/sysv/linux/hppa/Versions,v
retrieving revision 1.2
diff -u -p -r1.2 Versions
--- sysdeps/unix/sysv/linux/hppa/Versions	28 Aug 2002 23:55:01 -0000	1.2
+++ sysdeps/unix/sysv/linux/hppa/Versions	26 May 2006 14:12:18 -0000
@@ -16,6 +16,9 @@ libc {
     #errlist-compat	254
     _sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
   }
+  GLIBC_2.4 {
+    #errlist-compat	256
+    sys_errlist;
 }
 librt {
   GLIBC_2.3 {






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? linuxthreads
? linuxthreads-head
? linuxthreads_db
? ports
Index: elf/elf.h
===================================================================
RCS file: /cvs/glibc/libc/elf/elf.h,v
retrieving revision 1.154
diff -u -p -r1.154 elf.h
--- elf/elf.h	25 Feb 2006 01:57:44 -0000	1.154
+++ elf/elf.h	26 May 2006 14:12:49 -0000
@@ -1704,6 +1704,8 @@ typedef Elf32_Addr Elf32_Conflict;
 #define R_PARISC_LTOFF_FPTR14R	62	/* LT-rel. fct ptr, right 14 bits. */
 #define R_PARISC_FPTR64		64	/* 64 bits function address.  */
 #define R_PARISC_PLABEL32	65	/* 32 bits function address.  */
+#define R_PARISC_PLABEL21L	66	/* Left 21 bits of fdesc address */
+#define R_PARISC_PLABEL14R	70	/* Right 14 bits of fdesc address */
 #define R_PARISC_PCREL64	72	/* 64 bits PC-rel. address.  */
 #define R_PARISC_PCREL22F	74	/* 22 bits PC-rel. address.  */
 #define R_PARISC_PCREL14WR	75	/* PC-rel. address, right 14 bits.  */
@@ -1764,6 +1766,29 @@ typedef Elf32_Addr Elf32_Conflict;
 #define R_PARISC_LTOFF_TP16F	229	/* 16 bits LT-TP-rel. address.  */
 #define R_PARISC_LTOFF_TP16WF	230	/* 16 bits LT-TP-rel. address.  */
 #define R_PARISC_LTOFF_TP16DF	231	/* 16 bits LT-TP-rel. address.  */
+
+#define R_PARISC_GNU_VTENTRY    232
+#define R_PARISC_GNU_VTINHERIT  233
+#define R_PARISC_TLS_GD21L      234	/* GD 21-bit left */
+#define R_PARISC_TLS_GD14R      235	/* GD 14-bit right */
+#define R_PARISC_TLS_GDCALL     236	/* GD call to __t_g_a */
+#define R_PARISC_TLS_LDM21L     237	/* LD module 21-bit left */
+#define R_PARISC_TLS_LDM14R     238	/* LD module 14-bit right */
+#define R_PARISC_TLS_LDMCALL    239	/* LD module call to __t_g_a */
+#define R_PARISC_TLS_LDO21L     240	/* LD offset 21-bit left */
+#define R_PARISC_TLS_LDO14R     241	/* LD offset 14-bit right */
+#define R_PARISC_TLS_DTPMOD32   242	/* DTP module 32-bit */
+#define R_PARISC_TLS_DTPMOD64   243	/* DTP module 64-bit */
+#define R_PARISC_TLS_DTPOFF32   244	/* DTP offset 32-bit */
+#define R_PARISC_TLS_DTPOFF64   245	/* DTP offset 32-bit */
+
+#define R_PARISC_TLS_LE21L      R_PARISC_TPREL21L
+#define R_PARISC_TLS_LE14R      R_PARISC_TPREL14R
+#define R_PARISC_TLS_IE21L      R_PARISC_LTOFF_TP21L
+#define R_PARISC_TLS_IE14R      R_PARISC_LTOFF_TP14R
+#define R_PARISC_TLS_TPREL32    R_PARISC_TPREL32
+#define R_PARISC_TLS_TPREL64    R_PARISC_TPREL64
+
 #define R_PARISC_HIRESERVE	255
 
 /* Legal values for p_type field of Elf32_Phdr/Elf64_Phdr.  */
Index: elf/rtld.c
===================================================================
RCS file: /cvs/glibc/libc/elf/rtld.c,v
retrieving revision 1.362
diff -u -p -r1.362 rtld.c
--- elf/rtld.c	8 Apr 2006 19:50:51 -0000	1.362
+++ elf/rtld.c	26 May 2006 14:12:50 -0000
@@ -380,14 +380,14 @@ _dl_start (void *arg)
      know it is available.  We do not have to clear the memory if we
      do not have to use the temporary bootstrap_map.  Global variables
      are initialized to zero by default.  */
-#ifndef DONT_USE_BOOTSTRAP_MAP
+#if !defined DONT_USE_BOOTSTRAP_MAP
 # ifdef HAVE_BUILTIN_MEMSET
   __builtin_memset (bootstrap_map.l_info, '\0', sizeof (bootstrap_map.l_info));
 # else
-  for (size_t cnt = 0;
-       cnt < sizeof (bootstrap_map.l_info) / sizeof (bootstrap_map.l_info[0]);
-       ++cnt)
-    bootstrap_map.l_info[cnt] = 0;
+  /* Clear the whole bootstrap_map structure */
+  for (char *cnt = (char *)&(bootstrap_map);
+       cnt < ((char *)&(bootstrap_map) + sizeof (bootstrap_map));
+       *cnt++ = '\0');
 # endif
 #endif
 
Index: elf/tst-auditmod1.c
===================================================================
RCS file: /cvs/glibc/libc/elf/tst-auditmod1.c,v
retrieving revision 1.13
diff -u -p -r1.13 tst-auditmod1.c
--- elf/tst-auditmod1.c	5 Oct 2005 18:57:00 -0000	1.13
+++ elf/tst-auditmod1.c	26 May 2006 14:12:50 -0000
@@ -162,6 +162,12 @@ la_symbind64 (Elf64_Sym *sym, unsigned i
 # define La_regs La_ia64_regs
 # define La_retval La_ia64_retval
 # define int_retval lrv_r8
+#elif defined __hppa__
+# define pltenter la_hppa_gnu_pltenter
+# define pltexit la_hppa_gnu_pltexit
+# define La_regs La_hppa_regs
+# define La_retval La_hppa_retval
+# define int_retval lrv_r28
 #elif defined __mips__ && _MIPS_SIM == _ABIO32
 # define pltenter la_mips_o32_gnu_pltenter
 # define pltexit la_mips_o32_gnu_pltexit
Index: nptl/sysdeps/pthread/configure
===================================================================
RCS file: /cvs/glibc/libc/nptl/sysdeps/pthread/configure,v
retrieving revision 1.10
diff -u -p -r1.10 configure
--- nptl/sysdeps/pthread/configure	3 Dec 2003 06:50:01 -0000	1.10
+++ nptl/sysdeps/pthread/configure	26 May 2006 14:12:50 -0000
@@ -56,8 +56,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_l
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -121,8 +120,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_l
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
Index: nptl/sysdeps/pthread/pthread.h
===================================================================
RCS file: /cvs/glibc/libc/nptl/sysdeps/pthread/pthread.h,v
retrieving revision 1.41
diff -u -p -r1.41 pthread.h
--- nptl/sysdeps/pthread/pthread.h	5 Apr 2006 20:30:13 -0000	1.41
+++ nptl/sysdeps/pthread/pthread.h	26 May 2006 14:12:50 -0000
@@ -221,7 +221,7 @@ __BEGIN_DECLS
 extern int pthread_create (pthread_t *__restrict __newthread,
 			   __const pthread_attr_t *__restrict __attr,
 			   void *(*__start_routine) (void *),
-			   void *__restrict __arg) __THROW __nonnull ((1, 3));
+			   void *(__restrict __arg) __THROW __nonnull ((1, 3));
 
 /* Terminate calling thread.
 
Index: sysdeps/unix/sysv/linux/getcwd.c
===================================================================
RCS file: /cvs/glibc/libc/sysdeps/unix/sysv/linux/getcwd.c,v
retrieving revision 1.24
diff -u -p -r1.24 getcwd.c
--- sysdeps/unix/sysv/linux/getcwd.c	2 Apr 2006 17:58:28 -0000	1.24
+++ sysdeps/unix/sysv/linux/getcwd.c	26 May 2006 14:12:51 -0000
@@ -31,6 +31,9 @@
 
 #include <kernel-features.h>
 
+#ifndef MAX
+# define MAX(a, b) ((a) < (b) ? (b) : (a))
+#endif
 
 /* If we compile the file for use in ld.so we don't need the feature
    that getcwd() allocates the buffers itself.  */
Index: sysdeps/unix/sysv/linux/posix_fadvise.c
===================================================================
RCS file: /cvs/glibc/libc/sysdeps/unix/sysv/linux/posix_fadvise.c,v
retrieving revision 1.3
diff -u -p -r1.3 posix_fadvise.c
--- sysdeps/unix/sysv/linux/posix_fadvise.c	17 Aug 2003 00:36:22 -0000	1.3
+++ sysdeps/unix/sysv/linux/posix_fadvise.c	26 May 2006 14:12:51 -0000
@@ -35,6 +35,19 @@ posix_fadvise (int fd, off_t offset, off
     return INTERNAL_SYSCALL_ERRNO (ret, err);
   return 0;
 #else
+# ifdef __NR_fadvise64_64
+  INTERNAL_SYSCALL_DECL (err);  
+  int ret = INTERNAL_SYSCALL (fadvise64_64, err, 6, fd,
+			      __LONG_LONG_PAIR ((long) (offset >> 31),
+						(long) offset),
+			      __LONG_LONG_PAIR ((long) (len >> 31),
+						(long) len),
+			      advise);
+  if (INTERNAL_SYSCALL_ERROR_P (ret, err))
+    return INTERNAL_SYSCALL_ERRNO (ret, err);
+  return 0;
+# else
   return ENOSYS;
+# endif
 #endif
 }






------=_Part_27885_23555842.1148653785481
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	charset=us-ascii
Content-Transfer-Encoding: 7bit
X-Attachment-Id: f_enomklax
Content-Disposition: attachment; filename="patch-linuxthreads-2006-05-26.diff"

Index: linuxthreads/descr.h
===================================================================
RCS file: /cvs/glibc/linuxthreads/linuxthreads/descr.h,v
retrieving revision 1.17
diff -u -p -r1.17 descr.h
--- linuxthreads/descr.h	26 Apr 2006 15:04:12 -0000	1.17
+++ linuxthreads/descr.h	26 May 2006 14:13:31 -0000
@@ -71,7 +71,7 @@ typedef struct _pthread_extricate_struct
 /* Atomic counter made possible by compare_and_swap */
 struct pthread_atomic {
   long p_count;
-  int p_spinlock;
+  __atomic_lock_t p_spinlock;
 };
 
 
Index: linuxthreads/manager.c
===================================================================
RCS file: /cvs/glibc/linuxthreads/linuxthreads/manager.c,v
retrieving revision 1.100
diff -u -p -r1.100 manager.c
--- linuxthreads/manager.c	1 May 2006 17:24:15 -0000	1.100
+++ linuxthreads/manager.c	26 May 2006 14:13:31 -0000
@@ -894,10 +894,11 @@ static void pthread_free(pthread_descr t
 #ifdef _STACK_GROWS_UP
 # ifdef USE_TLS
       size_t stacksize = guardaddr - th->p_stackaddr;
+      guardaddr = th->p_stackaddr;
 # else
       size_t stacksize = guardaddr - (char *)th;
-# endif
       guardaddr = (char *)th;
+# endif
 #else
       /* Guardaddr is always set, even if guardsize is 0.  This allows
 	 us to compute everything else.  */
Index: linuxthreads/oldsemaphore.c
===================================================================
RCS file: /cvs/glibc/linuxthreads/linuxthreads/oldsemaphore.c,v
retrieving revision 1.12
diff -u -p -r1.12 oldsemaphore.c
--- linuxthreads/oldsemaphore.c	20 Apr 2004 18:53:44 -0000	1.12
+++ linuxthreads/oldsemaphore.c	26 May 2006 14:13:31 -0000
@@ -31,7 +31,7 @@
 
 typedef struct {
     long int sem_status;
-    int sem_spinlock;
+    __atomic_lock_t sem_spinlock;
 } old_sem_t;
 
 extern int __old_sem_init (old_sem_t *__sem, int __pshared, unsigned int __value);
Index: linuxthreads/pt-machine.c
===================================================================
RCS file: /cvs/glibc/linuxthreads/linuxthreads/pt-machine.c,v
retrieving revision 1.3
diff -u -p -r1.3 pt-machine.c
--- linuxthreads/pt-machine.c	26 Aug 2002 22:39:45 -0000	1.3
+++ linuxthreads/pt-machine.c	26 May 2006 14:13:31 -0000
@@ -19,7 +19,9 @@
 
 #define PT_EI
 
-extern long int testandset (int *spinlock);
+#include <pthread.h>
+
+extern long int testandset (__atomic_lock_t *spinlock);
 extern int __compare_and_swap (long int *p, long int oldval, long int newval);
 
 #include <pt-machine.h>
Index: linuxthreads/pthread.c
===================================================================
RCS file: /cvs/glibc/linuxthreads/linuxthreads/pthread.c,v
retrieving revision 1.139
diff -u -p -r1.139 pthread.c
--- linuxthreads/pthread.c	1 May 2006 17:24:15 -0000	1.139
+++ linuxthreads/pthread.c	26 May 2006 14:13:31 -0000
@@ -301,7 +301,7 @@ __pthread_initialize_minimal(void)
   pthread_descr self;
 
   /* First of all init __pthread_handles[0] and [1] if needed.  */
-# if __LT_SPINLOCK_INIT != 0
+# ifdef __LT_INITIALIZER_NOT_ZERO
   __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
   __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
 # endif
@@ -371,7 +371,7 @@ cannot allocate TLS data structures for 
 # endif
   /* self->p_start_args need not be initialized, it's all zero.  */
   self->p_userstack = 1;
-# if __LT_SPINLOCK_INIT != 0
+# ifdef __LT_INITIALIZER_NOT_ZERO 
   self->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER;
 # endif
   self->p_alloca_cutoff = __MAX_ALLOCA_CUTOFF;
@@ -385,7 +385,7 @@ cannot allocate TLS data structures for 
 #else  /* USE_TLS */
 
   /* First of all init __pthread_handles[0] and [1].  */
-# if __LT_SPINLOCK_INIT != 0
+# ifdef __LT_INITIALIZER_NOT_ZERO
   __pthread_handles[0].h_lock = __LOCK_INITIALIZER;
   __pthread_handles[1].h_lock = __LOCK_INITIALIZER;
 # endif
@@ -688,8 +688,8 @@ int __pthread_initialize_manager(void)
 # endif
   mgr->p_start_args = (struct pthread_start_args) PTHREAD_START_ARGS_INITIALIZER(__pthread_manager);
   mgr->p_nr = 1;
-# if __LT_SPINLOCK_INIT != 0
-  self->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER;
+# ifdef __LT_INITIALIZER_NOT_ZERO
+  mgr->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER;
 # endif
   mgr->p_alloca_cutoff = PTHREAD_STACK_MIN / 4;
 #else
@@ -930,7 +930,7 @@ pthread_descr __pthread_self_stack(void)
 # ifdef USE_TLS
 #  ifdef _STACK_GROWS_UP
   while (h->h_descr == NULL
-	 || ! (sp >= h->h_descr->p_stackaddr && sp < h->h_descr->p_guardaddr))
+	 || ! (sp >= (char *) h->h_descr->p_stackaddr && sp < (char *) h->h_descr->p_guardaddr))
     h++;
 #  else
   while (h->h_descr == NULL
Index: linuxthreads/spinlock.c
===================================================================
RCS file: /cvs/glibc/linuxthreads/linuxthreads/spinlock.c,v
retrieving revision 1.39
diff -u -p -r1.39 spinlock.c
--- linuxthreads/spinlock.c	2 Mar 2006 22:23:49 -0000	1.39
+++ linuxthreads/spinlock.c	26 May 2006 14:13:31 -0000
@@ -24,9 +24,9 @@
 #include "spinlock.h"
 #include "restart.h"
 
-static void __pthread_acquire(int * spinlock);
+static void __pthread_acquire(__atomic_lock_t * spinlock);
 
-static inline void __pthread_release(int * spinlock)
+static inline void __pthread_release(__atomic_lock_t * spinlock)
 {
   WRITE_MEMORY_BARRIER();
   *spinlock = __LT_SPINLOCK_INIT;
@@ -56,6 +56,9 @@ static inline void __pthread_release(int
    This is safe because there are no concurrent __pthread_unlock
    operations -- only the thread that locked the mutex can unlock it. */
 
+#if defined HAS_COMPARE_AND_SWAP
+#error hppa does not have CAS available in general for spinlocks.
+#endif
 
 void internal_function __pthread_lock(struct _pthread_fastlock * lock,
 				      pthread_descr self)
@@ -103,9 +106,9 @@ void internal_function __pthread_lock(st
 	  return;
 	}
       }
-#ifdef BUSY_WAIT_NOP
+# ifdef BUSY_WAIT_NOP
       BUSY_WAIT_NOP;
-#endif
+# endif
       __asm __volatile ("" : "=m" (lock->__status) : "m" (lock->__status));
     }
 
@@ -269,11 +272,11 @@ again:
 struct wait_node {
   struct wait_node *next;	/* Next node in null terminated linked list */
   pthread_descr thr;		/* The thread waiting with this node */
-  int abandoned;		/* Atomic flag */
+  __atomic_lock_t abandoned;	/* Atomic flag */
 };
 
 static long wait_node_free_list;
-static int wait_node_free_list_spinlock;
+__pthread_lock_define_initialized(static, wait_node_free_list_spinlock);
 
 /* Allocate a new node from the head of the free list using an atomic
    operation, or else using malloc if that list is empty.  A fundamental
@@ -376,7 +379,7 @@ void __pthread_alt_lock(struct _pthread_
       if (self == NULL)
 	self = thread_self();
 
-      wait_node.abandoned = 0;
+      wait_node.abandoned = __LT_SPINLOCK_INIT;
       wait_node.next = (struct wait_node *) lock->__status;
       wait_node.thr = self;
       lock->__status = (long) &wait_node;
@@ -402,7 +405,7 @@ void __pthread_alt_lock(struct _pthread_
       wait_node.thr = self;
       newstatus = (long) &wait_node;
     }
-    wait_node.abandoned = 0;
+    wait_node.abandoned = __LT_SPINLOCK_INIT;
     wait_node.next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -451,7 +454,7 @@ int __pthread_alt_timedlock(struct _pthr
       if (self == NULL)
 	self = thread_self();
 
-      p_wait_node->abandoned = 0;
+      p_wait_node->abandoned = __LT_SPINLOCK_INIT;
       p_wait_node->next = (struct wait_node *) lock->__status;
       p_wait_node->thr = self;
       lock->__status = (long) p_wait_node;
@@ -474,7 +477,7 @@ int __pthread_alt_timedlock(struct _pthr
       p_wait_node->thr = self;
       newstatus = (long) p_wait_node;
     }
-    p_wait_node->abandoned = 0;
+    p_wait_node->abandoned = __LT_SPINLOCK_INIT;
     p_wait_node->next = (struct wait_node *) oldstatus;
     /* Make sure the store in wait_node.next completes before performing
        the compare-and-swap */
@@ -574,7 +577,7 @@ void __pthread_alt_unlock(struct _pthrea
     while (p_node != (struct wait_node *) 1) {
       int prio;
 
-      if (p_node->abandoned) {
+      if (lock_held(&p_node->abandoned)) {
 	/* Remove abandoned node. */
 #if defined TEST_FOR_COMPARE_AND_SWAP
 	if (!__pthread_has_cas)
@@ -674,7 +677,7 @@ int __pthread_has_cas = 0;
 #if !defined HAS_COMPARE_AND_SWAP || defined TEST_FOR_COMPARE_AND_SWAP
 
 int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                               int * spinlock)
+                               __atomic_lock_t * spinlock)
 {
   int res;
 
@@ -711,7 +714,7 @@ int __pthread_compare_and_swap(long * pt
    - When nanosleep() returns, we try again, doing MAX_SPIN_COUNT
      sched_yield(), then sleeping again if needed. */
 
-static void __pthread_acquire(int * spinlock)
+static void __pthread_acquire(__atomic_lock_t * spinlock)	
 {
   int cnt = 0;
   struct timespec tm;
Index: linuxthreads/spinlock.h
===================================================================
RCS file: /cvs/glibc/linuxthreads/linuxthreads/spinlock.h,v
retrieving revision 1.24
diff -u -p -r1.24 spinlock.h
--- linuxthreads/spinlock.h	31 Jul 2003 19:16:04 -0000	1.24
+++ linuxthreads/spinlock.h	26 May 2006 14:13:31 -0000
@@ -33,14 +33,28 @@
 #endif
 #endif
 
+/* Define lock_held for all arches that don't need a modified copy. */
+#ifndef __LT_INITIALIZER_NOT_ZERO
+# define lock_held(p) *(p)
+#endif
+
+/* Initliazers for possibly complex structures */
+#ifdef __LT_INITIALIZER_NOT_ZERO
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME = __LT_SPINLOCK_ALT_INIT
+#else
+# define __pthread_lock_define_initialized(CLASS,NAME) \
+	CLASS __atomic_lock_t NAME
+#endif
+
 #if defined(TEST_FOR_COMPARE_AND_SWAP)
 
 extern int __pthread_has_cas;
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   if (__builtin_expect (__pthread_has_cas, 1))
     return __compare_and_swap(ptr, oldval, newval);
@@ -58,7 +72,7 @@ static inline int compare_and_swap(long 
 
 static inline int
 compare_and_swap_with_release_semantics (long * ptr, long oldval,
-					 long newval, int * spinlock)
+					 long newval, __atomic_lock_t * spinlock)
 {
   return __compare_and_swap_with_release_semantics (ptr, oldval,
 						    newval);
@@ -67,7 +81,7 @@ compare_and_swap_with_release_semantics 
 #endif
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __compare_and_swap(ptr, oldval, newval);
 }
@@ -75,10 +89,10 @@ static inline int compare_and_swap(long 
 #else
 
 extern int __pthread_compare_and_swap(long * ptr, long oldval, long newval,
-                                      int * spinlock);
+                                      __atomic_lock_t * spinlock);
 
 static inline int compare_and_swap(long * ptr, long oldval, long newval,
-                                   int * spinlock)
+                                   __atomic_lock_t * spinlock)
 {
   return __pthread_compare_and_swap(ptr, oldval, newval, spinlock);
 }
Index: linuxthreads/tst-clock1.c
===================================================================
RCS file: /cvs/glibc/linuxthreads/linuxthreads/tst-clock1.c,v
retrieving revision 1.2
diff -u -p -r1.2 tst-clock1.c
--- linuxthreads/tst-clock1.c	10 Dec 2004 00:37:46 -0000	1.2
+++ linuxthreads/tst-clock1.c	26 May 2006 14:13:31 -0000
@@ -53,8 +53,9 @@ tf (void *arg)
 
 
 int
-do_test (void)
+main (void)
 {
+  int err = 1;
 #if defined _POSIX_THREAD_CPUTIME && _POSIX_THREAD_CPUTIME >= 0
 # define N 10
 
@@ -137,10 +138,11 @@ do_test (void)
     }
 
   struct timespec t[N + 1];
+  int ret;
   for (i = 0; i < N + 1; ++i)
-    if (clock_gettime (cl[i], &t[i]) != 0)
+    if ((ret = clock_gettime (cl[i], &t[i])) != 0)
       {
-	printf ("clock_gettime round %d failed\n", i);
+	printf ("clock_gettime round %d failed with %d\n", i, ret);
 	return 1;
       }
 
@@ -152,6 +154,7 @@ do_test (void)
       diff.tv_nsec = t[i].tv_nsec - t[i + 1].tv_nsec;
       if (diff.tv_nsec < 0)
 	{
+	  printf ("Adjusting.\n");
 	  diff.tv_nsec += 1000000000;
 	  --diff.tv_sec;
 	}
@@ -161,7 +164,7 @@ do_test (void)
 	  printf ("\
 difference between thread %d and %d too small (%ld.%09ld)\n",
 		  i, i + 1, (long int) diff.tv_sec, (long int) diff.tv_nsec);
-	  return 1;
+	  err |= 1;
 	}
 
       printf ("diff %d->%d: %ld.%09ld\n",
@@ -194,9 +197,7 @@ difference between thread %d and %d too 
     }
 #endif
 
-  return 0;
+  return err;
 }
 
 
-#define TEST_FUNCTION do_test ()
-#include "../test-skeleton.c"
Index: linuxthreads/sysdeps/pthread/pthread.h
===================================================================
RCS file: /cvs/glibc/linuxthreads/linuxthreads/sysdeps/pthread/pthread.h,v
retrieving revision 1.42
diff -u -p -r1.42 pthread.h
--- linuxthreads/sysdeps/pthread/pthread.h	20 Sep 2004 22:12:11 -0000	1.42
+++ linuxthreads/sysdeps/pthread/pthread.h	26 May 2006 14:13:32 -0000
@@ -31,26 +31,26 @@ __BEGIN_DECLS
 /* Initializers.  */
 
 #define PTHREAD_MUTEX_INITIALIZER \
-  {0, 0, 0, PTHREAD_MUTEX_TIMED_NP, __LOCK_INITIALIZER}
+  {0, 0, 0, PTHREAD_MUTEX_TIMED_NP, __LOCK_ALT_INITIALIZER}
 #ifdef __USE_GNU
 # define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \
-  {0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, __LOCK_INITIALIZER}
+  {0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, __LOCK_ALT_INITIALIZER}
 # define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \
-  {0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, __LOCK_INITIALIZER}
+  {0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, __LOCK_ALT_INITIALIZER}
 # define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \
-  {0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, __LOCK_INITIALIZER}
+  {0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, __LOCK_ALT_INITIALIZER}
 #endif
 
-#define PTHREAD_COND_INITIALIZER {__LOCK_INITIALIZER, 0, "", 0}
+#define PTHREAD_COND_INITIALIZER {__LOCK_ALT_INITIALIZER, 0, "", 0}
 
 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
 # define PTHREAD_RWLOCK_INITIALIZER \
-  { __LOCK_INITIALIZER, 0, NULL, NULL, NULL,				      \
+  { __LOCK_ALT_INITIALIZER, 0, NULL, NULL, NULL,			      \
     PTHREAD_RWLOCK_DEFAULT_NP, PTHREAD_PROCESS_PRIVATE }
 #endif
 #ifdef __USE_GNU
 # define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \
-  { __LOCK_INITIALIZER, 0, NULL, NULL, NULL,				      \
+  { __LOCK_ALT_INITIALIZER, 0, NULL, NULL, NULL,			      \
     PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, PTHREAD_PROCESS_PRIVATE }
 #endif
 
Index: linuxthreads/sysdeps/pthread/bits/initspin.h
===================================================================
RCS file: /cvs/glibc/linuxthreads/linuxthreads/sysdeps/pthread/bits/initspin.h,v
retrieving revision 1.3
diff -u -p -r1.3 initspin.h
--- linuxthreads/sysdeps/pthread/bits/initspin.h	26 Aug 2002 22:39:44 -0000	1.3
+++ linuxthreads/sysdeps/pthread/bits/initspin.h	26 May 2006 14:13:32 -0000
@@ -23,6 +23,7 @@
 #define __LT_SPINLOCK_INIT 0
 
 /* Macros for lock initializers, using the above definition. */
-#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
+#define __LOCK_INITIALIZER ((struct _pthread_fastlock){ 0, __LT_SPINLOCK_INIT })
+#define __LOCK_ALT_INITIALIZER { 0, __LT_SPINLOCK_INIT }
 #define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
 #define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT }
Index: linuxthreads/sysdeps/pthread/bits/libc-lock.h
===================================================================
RCS file: /cvs/glibc/linuxthreads/linuxthreads/sysdeps/pthread/bits/libc-lock.h,v
retrieving revision 1.33
diff -u -p -r1.33 libc-lock.h
--- linuxthreads/sysdeps/pthread/bits/libc-lock.h	6 Jan 2006 09:55:46 -0000	1.33
+++ linuxthreads/sysdeps/pthread/bits/libc-lock.h	26 May 2006 14:13:32 -0000
@@ -71,12 +71,12 @@ typedef pthread_key_t __libc_key_t;
    initialized locks must be set to one due to the lack of normal
    atomic operations.) */
 
-#if __LT_SPINLOCK_INIT == 0
+#ifdef __LT_INITIALIZER_NOT_ZERO
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME;
+  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
 #else
 #  define __libc_lock_define_initialized(CLASS,NAME) \
-  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
+  CLASS __libc_lock_t NAME;
 #endif
 
 #define __libc_rwlock_define_initialized(CLASS,NAME) \
Index: linuxthreads/sysdeps/pthread/bits/pthreadtypes.h
===================================================================
RCS file: /cvs/glibc/linuxthreads/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h,v
retrieving revision 1.12
diff -u -p -r1.12 pthreadtypes.h
--- linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	12 Sep 2004 18:44:54 -0000	1.12
+++ linuxthreads/sysdeps/pthread/bits/pthreadtypes.h	26 May 2006 14:13:32 -0000
@@ -22,12 +22,14 @@
 #define __need_schedparam
 #include <bits/sched.h>
 
+typedef int __atomic_lock_t;
+
 /* Fast locks (not abstract because mutexes and conditions aren't abstract). */
 struct _pthread_fastlock
 {
-  long int __status;   /* "Free" or "taken" or head of waiting list */
-  int __spinlock;      /* Used by compare_and_swap emulation. Also,
-			  adaptive SMP lock stores spin count here. */
+  long int __status;		/* "Free" or "taken" or head of waiting list */
+  __atomic_lock_t __spinlock;	/* Used by compare_and_swap emulation. Also,
+				   adaptive SMP lock stores spin count here. */
 };
 
 #ifndef _PTHREAD_DESCR_DEFINED






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Le vendredi 26 mai 2006 =C3=A0 10:29 -0400, Carlos O'Donell a =C3=A9crit :

> Index: sysdeps/unix/sysv/linux/hppa/Versions
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> RCS file: /cvs/glibc/ports/sysdeps/unix/sysv/linux/hppa/Versions,v
> retrieving revision 1.2
> diff -u -p -r1.2 Versions
> --- sysdeps/unix/sysv/linux/hppa/Versions       28 Aug 2002 23:55:01
> -0000      1.2
> +++ sysdeps/unix/sysv/linux/hppa/Versions       26 May 2006 14:12:18
> -0000
> @@ -16,6 +16,9 @@ libc {
>      #errlist-compat    254
>      _sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
>    }
> +  GLIBC_2.4 {
> +    #errlist-compat    256
> +    sys_errlist;
>  }
>  librt {
>    GLIBC_2.3 {


What stops this from going into ports now?

Tks,
Jeff Bailey

--=20
Although when you're in the situation that RMS is telling you that
you're being too ideological about freedom, maybe, just maybe, it's
true.
- Matthew Wilcox

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Le vendredi 26 mai 2006 &#224; 10:29 -0400, Carlos O'Donell a &#233;crit&nb=
sp;:<BR>
<BLOCKQUOTE TYPE=3DCITE>
    <TT><FONT COLOR=3D"#000000">Index: sysdeps/unix/sysv/linux/hppa/Version=
s</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">RCS file: /cvs/glibc/ports/sysdeps/unix/sys=
v/linux/hppa/Versions,v</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">retrieving revision 1.2</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">diff -u -p -r1.2 Versions</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">--- sysdeps/unix/sysv/linux/hppa/Versions&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;28 Aug 2002 23:55:01 -0000&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;1.2</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">+++ sysdeps/unix/sysv/linux/hppa/Versions&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;26 May 2006 14:12:18 -0000</FONT></=
TT><BR>
    <TT><FONT COLOR=3D"#000000">@@ -16,6 +16,9 @@ libc {</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">&nbsp;&nbsp;&nbsp;&nbsp; #errlist-compat&nb=
sp;&nbsp;&nbsp;&nbsp;254</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">&nbsp;&nbsp;&nbsp;&nbsp; _sys_errlist; sys_=
errlist; _sys_nerr; sys_nerr;</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">&nbsp;&nbsp; }</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">+&nbsp; GLIBC_2.4 {</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">+&nbsp;&nbsp;&nbsp; #errlist-compat&nbsp;&n=
bsp;&nbsp;&nbsp;256</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">+&nbsp;&nbsp;&nbsp; sys_errlist;</FONT></TT=
><BR>
    <TT><FONT COLOR=3D"#000000">&nbsp;}</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">&nbsp;librt {</FONT></TT><BR>
    <TT><FONT COLOR=3D"#000000">&nbsp;&nbsp; GLIBC_2.3 {</FONT></TT><BR>
</BLOCKQUOTE>
<BR>
What stops this from going into ports now?<BR>
<BR>
Tks,<BR>
Jeff Bailey<BR>
<BR>
<TABLE CELLSPACING=3D"0" CELLPADDING=3D"0" WIDTH=3D"100%">
<TR>
<TD>
-- <BR>
<TT>Although when you're in the situation that RMS is telling you that</TT>=
<BR>
<TT>you're being too ideological about freedom, maybe, just maybe, it's</TT=
><BR>
<TT>true.</TT><BR>
- Matthew Wilcox
</TD>
</TR>
</TABLE>
</BODY>
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Xref: news.gmane.org gmane.linux.ports.parisc:23703

On 5/26/06, Jeff Bailey <jbailey@raspberryginger.com> wrote:
>
>
>  Le vendredi 26 mai 2006 =E0 10:29 -0400, Carlos O'Donell a =E9crit :
>
>      Index: sysdeps/unix/sysv/linux/hppa/Versions
>      =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>      RCS file: /cvs/glibc/ports/sysdeps/unix/sysv/linux/hppa/Versions,v
>      retrieving revision 1.2
>      diff -u -p -r1.2 Versions
>      --- sysdeps/unix/sysv/linux/hppa/Versions       28 Aug 2002 23:55:01=
 -0000      1.2
>      +++ sysdeps/unix/sysv/linux/hppa/Versions       26 May 2006 14:12:18=
 -0000
>      @@ -16,6 +16,9 @@ libc {
>           #errlist-compat    254
>           _sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
>         }
>      +  GLIBC_2.4 {
>      +    #errlist-compat    256
>      +    sys_errlist;
>       }
>       librt {
>         GLIBC_2.3 {
>
>  What stops this from going into ports now?

It's unverified, and should not be changed blindly because it's an ABI chan=
ge.

c.
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To follow up, I was not able to get this IOGear firewire+usb pci card to
work in the B1000/785.

However, a different firewire+usb pci card did have functional usb.
And another pci card, just firewire, worked.

In the end I did not go with firewire because of a bad firewire drive
enclosure, but I wanted to let any watchers know.

-- 
Chris Frost  |  <http://www.frostnet.net/chris/>
-------------+----------------------------------
Public PGP Key:
   Email chris@frostnet.net with the subject "retrieve pgp key"
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In case this issue is unknown, when ohci1394_pci_probe() calls
ioremap() a notice is printed that ioremap should not be used for
non-cacheable memory regions. Changing ioremap() to ioremap_nocache()
removes the message; both versions appear to be functional. This is
with kernel 2.6.16-pa11 on a B1000/785.

According to previous threads, it sounds like a more correct solution
abstracts the ioremap call using the pci_iomap API:
	http://www.mail-archive.com/netdev@vger.kernel.org/msg10410.html

I no longer have the firewire card, and so can't comment much further, but
wanted to mention the above just in case!

-- 
Chris Frost  |  <http://www.frostnet.net/chris/>
-------------+----------------------------------
Public PGP Key:
   Email chris@frostnet.net with the subject "retrieve pgp key"
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> > It's unverified, and should not be changed blindly because it's an ABI =
change.
>
> Right.  I'm trolling for patches for Ubuntu. =3D)  The ABI change is what
> caught my eye.
>
> Any sorts of testing reports that you're looking for?

Nothing yet. Thanks to Randolph we caught a bug in asm/unistd.h that I
introduce 2 years ago, and the include chain changes revealed the bug
during the build.

TLS + Linuxthreads is our first target.
NPTL is the next target.

All patches upstream is the goal.
This will never happen for linuxthreads.
This will happen for NPTL.

Cheers,
Carlos.
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> > make[2]: *** [/libc/math/test-float.out] Error 1
> > make[2]: *** [/libc/math/test-double.out] Error 1
> > make[2]: *** [/libc/math/test-ifloat.out] Error 1
> > make[2]: *** [/libc/math/test-idouble.out] Error 1
> > 
> > Much of this is fixed by Joel's great work. New compiler building.
> 
> I see some weird failures in test-double.out ....

Just a reminder, there is a difference in the handling of unaligned
fixups for doubles on 32 and 64 bit kernels.  I installed a work
around to libffi to avoid this failure as it's necessary on hpux.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> make[1]: *** [math/tests] Error 2
> make[2]: *** [/libc/stdlib/tst-strtod.out] Error 1
> make[2]: *** [/libc/stdlib/bug-strtod.out] Error 1
> 
> Usual long-double problem.

I thought we had agreed to treat long doubles as doubles...

Debian has had a one-line glibc patch installed for some time to
fix this and GCC has always treated long doubles as doubles on linux.
I don't understand why you persist in leaving this bug in the upstream
source.

HP isn't going to release their ieee library and I had to disable using
it with Ada on hpux because of bugs.  That only leaves the double-double
extended format used by powerpc and mips.  Even if we decide to change
the ABI again and add this support, this is a separate issue as far as
I can tell.

> make[1]: *** [stdlib/tests] Error 2
> make[2]: [/libc/posix/annexc.out] Error 1 (ignored)
> make[2]: *** [/libc/crypt/cert.out] Error 139
> 
> GCC optimizer bug.

Is there a PR?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] glibc tls linuxthreads failure baseline.
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> > Usual long-double problem.

> Debian has had a one-line glibc patch installed for some time to

Patch is shown below.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

2005-06-18  Carlos O'Donell <carlos@systemhalted.org>

	* sysdeps/hppa/hppa1.1/Implies: Remove ldbl-128.

===================================================================
RCS file: /var/lib/cvs/glibc/sysdeps/hppa/hppa1.1/Implies,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- glibc/sysdeps/hppa/hppa1.1/Implies	2005/06/08 20:32:10	1.2
+++ glibc/sysdeps/hppa/hppa1.1/Implies	2005/07/18 04:32:31	1.3
@@ -1,4 +1,3 @@
 wordsize-32
 ieee754/flt-32
 ieee754/dbl-64
-ieee754/ldbl-128
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Randolph,

This is the baseline failures I have for glibc tls linuxthreads:

make[2]: *** [/libc/math/test-float.out] Error 1
make[2]: *** [/libc/math/test-double.out] Error 1
make[2]: *** [/libc/math/test-ifloat.out] Error 1
make[2]: *** [/libc/math/test-idouble.out] Error 1

Much of this is fixed by Joel's great work. New compiler building.

make[1]: *** [math/tests] Error 2
make[2]: *** [/libc/stdlib/tst-strtod.out] Error 1
make[2]: *** [/libc/stdlib/bug-strtod.out] Error 1

Usual long-double problem.

make[1]: *** [stdlib/tests] Error 2
make[2]: [/libc/posix/annexc.out] Error 1 (ignored)
make[2]: *** [/libc/crypt/cert.out] Error 139

GCC optimizer bug.

make[1]: *** [crypt/tests] Error 2
make[2]: *** [/libc/linuxthreads/tst-clock1.out] Error 1

This looks like a wrapper problem.

make[2]: *** [/libc/linuxthreads/tst-attr1.out] Error 1

Guard address problem.

make[1]: *** [linuxthreads/tests] Error 2
make[2]: *** [/libc/rt/tst-aio9.out] Error 1
make[2]: *** [/libc/rt/tst-aio10.out] Error 1

Unknown. New regressions.

make[1]: *** [rt/tests] Error 2
make[2]: *** [/libc/elf/tst-pie1.out] Error 139

Unknown.

make[2]: *** [/libc/elf/tst-leaks1-mem] Error 1

Bad mojo.

make[2]: *** [/libc/elf/order.out] Error 1

Bad mojo, library constructor/destructors are processed out of order.

make[2]: *** [/libc/elf/nodelete2.out] Error 1

Bad mojo.

make[2]: *** [/libc/elf/tst-align2.out] Error 1

Bad mojo.

make[2]: *** [/libc/elf/order2.out] Error 1

Bad mojo.

make[2]: *** [/libc/elf/tst-audit2.out] Error 139

This is because our LA code is a bogus stub.

make[2]: *** [/libc/elf/check-textrel.out] Error 1

Huh... ?

make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

I'm not seeing tst-printf failures.

Cheers,
Carlos.
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On 31/05/06, pyrotek <pyrotek@internode.on.net> wrote:
>
>
> Hello all,
>
> I know this topic has been done to death. And I have read quite a lot in
> the
> mailing list archives.
> If I've missed something please feal free to point me in the right
> direction.
>
> I've got a Fx10 (grumbles)
> I don't want to go back to a Vis-EG 8bit colour no thanks I use the Fx10
> in
> Hp-UX
>
> >From my limited understanding "some" PCI video cards "may" work.
>
> I have read that the voodoo 2 card "should" work?
> >From my memory this was a PCI card that connected to your main video card
> via a small vga cable. is this the card everyone is talking about?


Yes. It was basically sold as a 3D add-on card, and when
using a 3D game, your main graphics card would switch
off and the Voodoo2 would display the 3D picture.
However the Voodoo2 can actually be used as a 'normal'
graphics card (incl. accelerated 2D), but AFAIK it was
not identified as a graphics card to the x86-BIOS and
therefore not initialized as such and also the Windows drivers didn't
support 2D with the Voodoo2.
IIRC the Voodoo Banshee was basically somewhat 'upgraded' Voodoo2 with
working 2D support and sold as a 'real' graphics card.

But when running Linux you can use the Voodoo2 just like
any normal graphics card.

If so can I piggy back it off my FX10? Or do I need to use it by it self?


You should be able to do both. Use sticon/stifb/X11 (fbdev) with the FX10
and the voodoo fb driver X11 (fbdev) for the Voodoo2.
If you want to use the Voodoo2 alone, you might want
to include the fbcon driver as well, but you'll always need
to use the serial console if you want to get into the PDC
if you don't use the FX10.

----

I have a Voodoo2 and a Matrox Millenium I
(4MB + 4MB add on). Both used to work fine with
32bit kernels on a C240, C3000 and C3700,
the Voodoo2 at 1024x768x24bit, and the Matrox with
1280x1024x24bit (my monitor doesn't support more).
My Voodoo2 however as a terrible signal quality!
I also had several success reports from people using
a Matrox Millenium II (AFAIK very similar to v1 anyway) ...

... HOWEVER I haven't tested whether all the cards works
with recent kernels, last time I used that machine as a
desktop was half a year back with a 2.6.9 kernel or
something. IIRC also 64bit fbcon worked back then, but
the machine would HPMC when it tried to start XFree86.

IIRC the first person who succeeded in having a 24bit desktop with a non-HP
gfx card did it with a ATI Rage XL.
I also have the same card, but I never managed to get
it working.

Note though you will get a 24bit desktop with these
gfx cards you will have no 2D acceleration, as they
are just work with X11/fbdev. Once we get the native
Xorg working on parisc they should be fast enough
for video playback I guess, but right now it is a quite
sluggish desktop experience ...

-----

BTW, I've read some paper that described the effort required to get ATI and
NVidia cards to initialize on
non-Intel systems by the means of a software x86-Emulator (like the one that
is in XFree86/Xorg).
IIRC the nvidia cards where the least troublesome, but
the init sequence needed for ATI cards are also well
understood.

----

I don't know what parts need to be done to get the
x86-BIOS emu or XFree86/Xorg working on parisc,
but once fixed you should be able to get accelerated 2D
with readily available gfx cards such as newer cards from
ATI/NVidia.

I don't think it would be that easy to get accelerated
3D working though, since someone would also have
to port DRI etc...

Greetings,
 Max

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On 31/05/06, <b class="gmail_sendername">pyrotek</b> &lt;<a href="mailto:pyrotek@internode.on.net">pyrotek@internode.on.net</a>&gt; wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>Hello all,<br><br>I know this topic has been done to death. And I have read quite a lot in the<br>mailing list archives.<br>If I've missed something please feal free to point me in the right<br>direction.<br><br>I've got a Fx10 (grumbles)
<br>I don't want to go back to a Vis-EG 8bit colour no thanks I use the Fx10 in<br>Hp-UX<br><br>&gt;From my limited understanding &quot;some&quot; PCI video cards &quot;may&quot; work.<br><br>I have read that the voodoo 2 card &quot;should&quot; work?
<br>&gt;From my memory this was a PCI card that connected to your main video card<br>via a small vga cable. is this the card everyone is talking about?</blockquote><div><br>Yes. It was basically sold as a 3D add-on card, and when
<br>using a 3D game, your main graphics card would switch<br>off and the Voodoo2 would display the 3D picture.<br>However the Voodoo2 can actually be used as a 'normal'<br>graphics card (incl. accelerated 2D), but AFAIK it was
<br>not identified as a graphics card to the x86-BIOS and<br>therefore not initialized as such and also the Windows drivers didn't support 2D with the Voodoo2.<br>IIRC the Voodoo Banshee was basically somewhat 'upgraded' Voodoo2 with working 2D support and sold as a 'real' graphics card.
<br> <br>But when running Linux you can use the Voodoo2 just like <br>any normal graphics card.<br></div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
If so can I piggy back it off my FX10? Or do I need to use it by it self?</blockquote><div><br>You should be able to do both. Use sticon/stifb/X11 (fbdev) with the FX10 and the voodoo fb driver X11 (fbdev) for the Voodoo2.
<br>If you want to use the Voodoo2 alone, you might want<br>to include the fbcon driver as well, but you'll always need<br>to use the serial console if you want to get into the PDC<br>if you don't use the FX10.<br><br>----
<br><br>I have a Voodoo2 and a Matrox Millenium I<br>(4MB + 4MB add on). Both used to work fine with<br>32bit kernels on a C240, C3000 and C3700,<br>the Voodoo2 at 1024x768x24bit, and the Matrox with<br>1280x1024x24bit (my monitor doesn't support more).
<br>My Voodoo2 however as a terrible signal quality!<br>I also had several success reports from people using <br>a Matrox Millenium II (AFAIK very similar to v1 anyway) ...<br><br>... HOWEVER I haven't tested whether all the cards works 
<br>with recent kernels, last time I used that machine as a<br>desktop was half a year back with a 2.6.9 kernel or<br>something. IIRC also 64bit fbcon worked back then, but<br>the machine would HPMC when it tried to start XFree86.
<br><br>IIRC the first person who succeeded in having a 24bit desktop with a non-HP gfx card did it with a ATI Rage XL.<br>I also have the same card, but I never managed to get<br>it working.<br><br>Note though you will get a 24bit desktop with these
<br>gfx cards you will have no 2D acceleration, as they<br>are just work with X11/fbdev. Once we get the native<br>Xorg working on parisc they should be fast enough<br>for video playback I guess, but right now it is a quite
<br>sluggish desktop experience ...<br><br>-----<br><br>BTW, I've read some paper that described the effort required to get ATI and NVidia cards to initialize on<br>non-Intel systems by the means of a software x86-Emulator (like the one that is in XFree86/Xorg).
<br>IIRC the nvidia cards where the least troublesome, but<br>the init sequence needed for ATI cards are also well<br>understood.<br><br>----<br><br>I don't know what parts need to be done to get the<br>x86-BIOS emu or XFree86/Xorg working on parisc,
<br>but once fixed you should be able to get accelerated 2D<br>with readily available gfx cards such as newer cards from <br>ATI/NVidia.<br><br>I don't think it would be that easy to get accelerated<br>3D working though, since someone would also have
<br>to port DRI etc...<br><br>Greetings,<br>&nbsp;Max<br></div></div>

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On 5/31/06, Max Grabert <parisc@gmail.com> wrote:
> On 31/05/06, pyrotek <pyrotek@internode.on.net> wrote:

> > If so can I piggy back it off my FX10? Or do I need to use it by it self?
>
>
> You should be able to do both. Use sticon/stifb/X11 (fbdev) with the FX10

Err... No.

Only sticon works on FX cards. That's the whole point, you cannot do
graphics *at all* with them. Only text.

HTH

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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> regcomp.c:408: internal compiler error: in gen_reg_rtx, at emit-rtl.c:807
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://gcc.gnu.org/bugs.html> for instructions.
> For Debian GNU/Linux specific bug reporting instructions,
> see <URL:file:///usr/share/doc/gcc-4.1/README.Bugs>.
> Preprocessed source stored into /tmp/ccOU1j8a.out file, please attach this to
> your bugreport.
> make[2]: *** [/CAD/parisc-linux/CVS-20060529/build/posix/regex.o] Error 1
> 
> Dave can you confirm me that I would actualy fill in a pr?

My impression is that this wouldn't be useful without a lot more
investigation.  It's highly likely that the compiler used for this
compilation was itself miscompiled.  On the otherhand, if you are
using the stock debian build of 4.1 for this compilation, then
definitely a bug report should be submitted.

A version of regex is part of GCC in libiberty.  It builds in every
stage.  So, normally a problem compiling regex would be noticed
immediately.  That's what makes me think the problem is somehow
specific to the compiler that you are using.

There error would appear to be at this point:

  /* Don't let anything called after initial flow analysis create new
     registers.  */
  gcc_assert (!no_new_pseudos);

It would be useful to have a stack backtrace at the point of the error.

You can do this by running gcc with -v to determine the cc1 command
for the compilation.  Run cc1 under gdb.  Put a break on the gcc_assert.
Use the 'ignore' command to tell gdb to ignore the break some large
number of times.  Run the program from the start.  Info break will
tell you how many times the break has been hit.  Use ignore again to
set the number of breaks to ignore to the number of hits less one.
Rerun and a break should occur on the assert which calls abort.  You
could also put a break on abort.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hello all,

I know this topic has been done to death. And I have read quite a lot in the
mailing list archives.
If I've missed something please feal free to point me in the right
direction.

I've got a Fx10 (grumbles)
I don't want to go back to a Vis-EG 8bit colour no thanks I use the Fx10 in
Hp-UX

>>From my limited understanding "some" PCI video cards "may" work.

I have read that the voodoo 2 card "should" work?
>>From my memory this was a PCI card that connected to your main video card
via a small vga cable. is this the card everyone is talking about?
If so can I piggy back it off my FX10? Or do I need to use it by it self?

Can anyone confirm that this works?

Also has any one tested this? 8MB 3dfx Voodoo Banshee PCI?

Thanks
Brendan

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Subject: [parisc-linux] User space locks -- what's wrong
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Xref: news.gmane.org gmane.linux.ports.parisc:23715

I'm about to throw the following change to the garbage heap since it
doesn't work as expected, particularly with SMP kernels.

The problem is I still see occasional libstdc++ and libjava testsuite
failures in pthread process intensive tests.  In particular, I'm getting
timeouts on tests that didn't timeout before.

The enclosed change is based on ideas presented in the paper,
"Implementing Spinlocks on the Intel Itanium Architecture and PA-RISC".

The main issue that the change tries to address is that spinning
indefinitely in user space on a UP kernel just burns cycles.  So, the
change is to spin awhile and then sleep.  This seemed to work with
the test application in the paper, but in practice it seems to cause
more test failures that just spinning, particularly on SMP kernels.
I suspect that on SMP kernels we sometimes end up with all threads
sleeping.

I've tried various sleep routines including sched_yield, and other
optimizations, but they don't seem to make a difference.  The trick
to dirty the cacheline presented in the paper didn't help performance
as measured by the Appendix F program.  I also didn't see
and difference in performance using the ",co" completer.  Possibly,
this is because I only tested on coherent PA 2.0 machines.

Thoughts?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: libstdc++-v3/config/cpu/hppa/atomicity.h
===================================================================
--- libstdc++-v3/config/cpu/hppa/atomicity.h	(revision 114341)
+++ libstdc++-v3/config/cpu/hppa/atomicity.h	(working copy)
@@ -1,6 +1,6 @@
 // Low-level functions for atomic operations: PA-RISC version  -*- C++ -*-
 
-// Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
+// Copyright (C) 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
@@ -29,7 +29,21 @@
 
 #include <bits/c++config.h>
 #include <bits/atomicity.h>
+#include <sys/time.h>
 
+// Macro to execute the only PA_RISC atomic operation (load and clear word).
+// The operand A must point to the 16-byte aligned lock word.  The result
+// is returned in V.
+#define PA_ASM_LOCK(a,v) \
+  __asm__ __volatile__ ("{ldcws|ldcw} 0(%1),%0"			\
+			: "=r" (v) : "r" (a): "memory")
+
+// Macro to reset lock using an order PA 2.0 store.  The operand A
+// must point to the lock word.  The operand V must contain the value 1.
+#define PA_ASM_UNLOCK(a,v) \
+  __asm__ __volatile__ ("{stws|stw},ma %1,0(%0)"		\
+			: : "r" (a), "r" (v) : "memory")
+
 _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
 
   template<int _Inst>
@@ -46,6 +60,32 @@
   // linker, we explicitly instantiate the atomicity lock.
   template volatile int _Atomicity_lock<0>::_S_atomicity_lock;
 
+  // Spin and sleep until we acquire the requested lock.
+  inline static void
+  __attribute__ ((__unused__))
+  _pa_getlock (volatile int *lptr)
+  {
+    int tmp;
+    unsigned int spins;
+    struct timeval sleeptime;
+
+    while (1)
+      {
+	// The number of spins should be one on a UP system.
+	for (spins = 100; spins; spins--)
+	  {
+	    PA_ASM_LOCK (lptr, tmp);
+	    if (tmp != 0)
+	      return;
+	  }
+
+	// The sleep time choice isn't critical.
+	sleeptime.tv_sec = 0;
+	sleeptime.tv_usec = 5000;
+	select (0, 0, 0, 0, &sleeptime);
+      }
+  }
+
   int
   __attribute__ ((__unused__))
   __exchange_and_add(volatile _Atomic_word* __mem, int __val)
@@ -54,21 +94,17 @@
     int tmp;
     volatile int& lock = _Atomicity_lock<0>::_S_atomicity_lock;
     
-    __asm__ __volatile__ ("ldcw 0(%1),%0\n\t"
-			  "cmpib,<>,n 0,%0,.+20\n\t"
-			  "ldw 0(%1),%0\n\t"
-			  "cmpib,= 0,%0,.-4\n\t"
-			  "nop\n\t"
-			  "b,n .-20"
-			  : "=&r" (tmp)
-			  : "r" (&lock)
-			  : "memory");
-    
+    PA_ASM_LOCK (&lock, tmp);
+    if (tmp == 0)
+      {
+	// Didn't get lock.
+	_pa_getlock (&lock);
+      }
+
     result = *__mem;
     *__mem = result + __val;
-    /* Reset lock with PA 2.0 "ordered" store.  */
-    __asm__ __volatile__ ("stw,ma %1,0(%0)"
-			  : : "r" (&lock), "r" (tmp) : "memory");
+
+    PA_ASM_UNLOCK (&lock, tmp);
     return result;
   }
   
@@ -79,20 +115,17 @@
     int tmp;
     volatile int& lock = _Atomicity_lock<0>::_S_atomicity_lock;
     
-    __asm__ __volatile__ ("ldcw 0(%1),%0\n\t"
-			  "cmpib,<>,n 0,%0,.+20\n\t"
-			  "ldw 0(%1),%0\n\t"
-			  "cmpib,= 0,%0,.-4\n\t"
-			  "nop\n\t"
-			  "b,n .-20"
-			  : "=&r" (tmp)
-			  : "r" (&lock)
-			  : "memory");
-    
+    PA_ASM_LOCK (&lock, tmp);
+    if (tmp == 0)
+      {
+	// Didn't get lock.
+	_pa_getlock (&lock);
+	tmp = 1;
+      }
+
     *__mem += __val;
-    /* Reset lock with PA 2.0 "ordered" store.  */
-    __asm__ __volatile__ ("stw,ma %1,0(%0)"
-			  : : "r" (&lock), "r" (tmp) : "memory");
+
+    PA_ASM_UNLOCK (&lock, tmp);
   }
 
 _GLIBCXX_END_NAMESPACE
Index: libjava/sysdep/pa/locks.h
===================================================================
--- libjava/sysdep/pa/locks.h	(revision 114341)
+++ libjava/sysdep/pa/locks.h	(working copy)
@@ -1,6 +1,6 @@
 // locks.h - Thread synchronization primitives. PA-RISC implementation.
 
-/* Copyright (C) 2002, 2005  Free Software Foundation
+/* Copyright (C) 2002, 2005, 2006  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -11,6 +11,8 @@
 #ifndef __SYSDEP_LOCKS_H__
 #define __SYSDEP_LOCKS_H__
 
+#include <sys/time.h>
+
 // Integer type big enough for object address.
 typedef size_t obj_addr_t;
 
@@ -28,6 +30,45 @@
 // linker, we explicitly instantiate the atomicity lock.
 template volatile int _pa_jv_cas_lock<0>::_S_pa_jv_cas_lock;
 
+// Macro to execute the only PA_RISC atomic operation (load and clear word).
+// The operand A must point to the 16-byte aligned lock word.  The result
+// is returned in V.
+#define PA_ASM_LOCK(a,v) \
+  __asm__ __volatile__ ("{ldcws|ldcw} 0(%1),%0"			\
+                        : "=r" (v) : "r" (a): "memory")
+
+// Macro to reset lock using an order PA 2.0 store.  The operand A
+// must point to the lock word.  The operand V must contain the value 1.
+#define PA_ASM_UNLOCK(a,v) \
+  __asm__ __volatile__ ("{stws|stw},ma %1,0(%0)"		\
+                        : : "r" (a), "r" (v) : "memory")
+
+// Spin and sleep until we acquire the requested lock.
+inline static void
+__attribute__ ((__unused__))
+_pa_getlock (volatile int *lptr)
+{
+  int tmp;
+  unsigned int spins;
+  struct timeval sleeptime;
+
+  while (1)
+    {
+      // The number of spins should be one on a UP system.
+      for (spins = 100; spins; spins--)
+	{
+	  PA_ASM_LOCK (lptr, tmp);
+	  if (tmp != 0)
+	    return;
+	}
+
+      // The sleep time choice isn't critical.
+      sleeptime.tv_sec = 0;
+      sleeptime.tv_usec = 5000;
+      select (0, 0, 0, 0, &sleeptime);
+    }
+}
+
 // Atomically replace *addr by new_val if it was initially equal to old_val.
 // Return true if the comparison is successful.
 // Assumed to have acquire semantics, i.e. later memory operations
@@ -44,15 +85,13 @@
   int tmp;
   volatile int& lock = _pa_jv_cas_lock<0>::_S_pa_jv_cas_lock;
 
-  __asm__ __volatile__ ("ldcw 0(%1),%0\n\t"
-			"cmpib,<>,n 0,%0,.+20\n\t"
-			"ldw 0(%1),%0\n\t"
-			"cmpib,= 0,%0,.-4\n\t"
-			"nop\n\t"
-			"b,n .-20"
-			: "=&r" (tmp)
-			: "r" (&lock)
-			: "memory");
+  PA_ASM_LOCK (&lock, tmp);
+  if (tmp == 0)
+    {
+      // Didn't get lock.
+      _pa_getlock (&lock);
+      tmp = 1;
+    }
 
   if (*addr != old_val)
     result = false;
@@ -62,10 +101,7 @@
       result = true;
     }
 
-  /* Reset lock with PA 2.0 "ordered" store.  */
-  __asm__ __volatile__ ("stw,ma %1,0(%0)"
-			: : "r" (&lock), "r" (tmp) : "memory");

From - Thu Nov 08 21:34:47 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] User space locks -- what's wrong
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On Sun, Jun 04, 2006 at 07:55:58PM -0400, John David Anglin wrote:
> I'm about to throw the following change to the garbage heap since it
> doesn't work as expected, particularly with SMP kernels.
> 
> The problem is I still see occasional libstdc++ and libjava testsuite
> failures in pthread process intensive tests.  In particular, I'm getting
> timeouts on tests that didn't timeout before.
>

I don't suppose we could test this using locks based on Carlos'
light-weight-syscalls? This would have the added 
 
> The enclosed change is based on ideas presented in the paper,
> "Implementing Spinlocks on the Intel Itanium Architecture and PA-RISC".
>

The changes look fine to me.
 
> The main issue that the change tries to address is that spinning
> indefinitely in user space on a UP kernel just burns cycles.  So, the
> change is to spin awhile and then sleep.  This seemed to work with
> the test application in the paper, but in practice it seems to cause
> more test failures that just spinning, particularly on SMP kernels.
> I suspect that on SMP kernels we sometimes end up with all threads
> sleeping.
> 

That's absolutely bizarre. Can you include steps for us toolchain
newbies to reproduce this? I'd love to try and trace down why this is
occuring. It could be a problem indicative of something very funky
occuring in our kernel.

> I've tried various sleep routines including sched_yield, and other
> optimizations, but they don't seem to make a difference.  The trick
> to dirty the cacheline presented in the paper didn't help performance
> as measured by the Appendix F program.  I also didn't see
> and difference in performance using the ",co" completer.  Possibly,
> this is because I only tested on coherent PA 2.0 machines.
> 

I suspect a majority of this is because we aren't running
optimally as it is. I suspect if we were performing as well as HPUX
the minor details would make more of a difference.

Cheers,
	Kyle
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] User space locks -- what's wrong
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> That's absolutely bizarre. Can you include steps for us toolchain
> newbies to reproduce this? I'd love to try and trace down why this is
> occuring. It could be a problem indicative of something very funky
> occuring in our kernel.

There definitely are some funky things going on in the kernel.
For example, if I try to build GCC with 'make -j 4 bootstrap' on
gsyprf11, about 50% of the time make dies because of a malloc data
corruption or a shell problem.  However, I never see this with
just 'make bootstrap'.

It's crossed my mind that locking could break if there is a memory
aliasing issue,

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Kai Holthaus <kmh@sonic.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Module Relocation Problem
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Hi,

I'm trying to compile and install the qc-usb (http://qce-ga.sourceforge.net=
/)=20
kernel module on my A5005X server. Compilation works just fine (make all &&=
=20
make install), but upon insmodding I get the following error:

Module quickcam, symbol qc_proc_init is out of range for PCREL22F relocation
=46ATAL: Error inserting quickcam (/lib/modules/2.6.16-pa11/misc/quickcam.k=
o):=20
Invalid module format

I've searched on google (in general) and on this mailing list for help on t=
his=20
topic, but couldn't find anything that would help me out, since I'm not=20
really a kernel and/or gcc wiz.=20

What am I doing wrong? Or is there something in the module code that's not=
=20
compatible with a 64bit hppa kernel?

Thanks so much,

	Kai
=2D-=20
Hofstadter's Law:
  "It always takes longer than you expect,
   even when you take into account Hofstadter's Law."
                             -- Douglas R. Hofstadter

kmh.AT.sonic.net

Check out Mission Octagon - a new, exciting novel!
http://www.missionoctagon.com

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Subject: Re: [parisc-linux] Module Relocation Problem
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> Module quickcam, symbol qc_proc_init is out of range for PCREL22F relocation
> =46ATAL: Error inserting quickcam (/lib/modules/2.6.16-pa11/misc/quickcam.k=
> o):=20

I believe that this has come up before.  The out of range
PCREL22F relocation implies that the module has a "b,l" instruction
(call) whose target can't be reached.  The maximum branch distance
for the "b,l" instruction is ~ 8 MB, so the module must be quite
large.

You might explore ways to reduce the modules's (e.g., limit inlining).
You might also try compiling with the -mlong-calls options.  This forces
GCC to use the "bve" instruction for calls in PA 2.0 compilations.  The
call setup using bve is slightly longer but there are no distance
limitations.  There's also a PA 1.x variant using "ble".  What's unclear
to me is whether the kernel loader has support for the relocations used
in these sequences.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> You might explore ways to reduce the modules's (e.g., limit inlining).
> You might also try compiling with the -mlong-calls options.  This forces
> GCC to use the "bve" instruction for calls in PA 2.0 compilations.  The
> call setup using bve is slightly longer but there are no distance
> limitations.  There's also a PA 1.x variant using "ble".  What's unclear
> to me is whether the kernel loader has support for the relocations used
> in these sequences.

Just thinking, the problem might be going the other way.  If so, reorganzing
the sections used for functions called from the kernel might help.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Module Relocation Problem
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> You might explore ways to reduce the modules's (e.g., limit inlining).
> You might also try compiling with the -mlong-calls options.  This forces
> GCC to use the "bve" instruction for calls in PA 2.0 compilations.  The
> call setup using bve is slightly longer but there are no distance
> limitations.  There's also a PA 1.x variant using "ble".  What's unclear
> to me is whether the kernel loader has support for the relocations used
> in these sequences.

I think I'm clearly out of my league here, since I honestly don't understan=
d=20
bve vs ble... :(

Anyway - I tried compiling the module with the "-mlong-calls" option - now =
I=20
get a different error message upon trying to insert the module into the=20
kernel:
	module quickcam: Unknown relocation: 10

Does that tell you anything? Because I have no clue...

Thanks so much for your help!

	Kai

=2D-=20
Hofstadter's Law:
  "It always takes longer than you expect,
   even when you take into account Hofstadter's Law."
                             -- Douglas R. Hofstadter

kmh.AT.sonic.net

Check out Mission Octagon - a new, exciting novel!
http://www.missionoctagon.com

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> Anyway - I tried compiling the module with the "-mlong-calls" option - now =
> I=20
> get a different error message upon trying to insert the module into the=20
> kernel:
> 	module quickcam: Unknown relocation: 10

That's R_PARISC_PCREL21L.  I was afraid this might happen.

About the only easy things are "-Os" and "-fno-inline-functions".
These might shrink the module a bit.  Oh, "-fno-unroll-loops" might
also help.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> That's R_PARISC_PCREL21L.  I was afraid this might happen.
>
> About the only easy things are "-Os" and "-fno-inline-functions".
> These might shrink the module a bit.  Oh, "-fno-unroll-loops" might
> also help.

Thanks again for your help - and unfortunately these didn't do the trick,=20
either - same results.

Looking over your earlier reply, you indicated that the module must be=20
quite "large" - do you mean file size of the .ko file?
Because that is way under the 8MB you mentioned - the file is around 200kB =
in=20
size...

The qc-usb module is a driver for Logitech's QuickCam Express cameras, whic=
h=20
are using the kernel usb and video4linux drivers...

Thanks again,

	Kai

=2D-=20
Hofstadter's Law:
  "It always takes longer than you expect,
   even when you take into account Hofstadter's Law."
                             -- Douglas R. Hofstadter

kmh.AT.sonic.net

Check out Mission Octagon - a new, exciting novel!
http://www.missionoctagon.com

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> Looking over your earlier reply, you indicated that the module must be=20
> quite "large" - do you mean file size of the .ko file?
> Because that is way under the 8MB you mentioned - the file is around 200kB =
> in=20
> size...

I wonder if that implies a bug a bug in the kernel loader.  I could
see a problem with PCREL17F relocations with files around 200kB.
These are used with the PA 1.x "bl" instruction.  The range for
"bl" instructions is about +/- 262kB.  The range for the 22F "b,l"
instruction is 32 times larger.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, 2006-06-05 at 12:49 -0400, John David Anglin wrote:
> It's crossed my mind that locking could break if there is a memory
> aliasing issue,

This should never happen, since all our mmap areas are allocated on the
congruence boundary.  DaveM recently pointed out that mremap can violate
the congruence rules on sparc.  This could theoretically also happen on
pa, but only if you're enlarging below, which is an unusual case.

I did catch a few congruence errors when I redid the cache flushing via
tmpalias space, but it all looked to be due to kernel processes which
don't allocate correctly anyway ... and would never take user locks.
But I should probably get back and try to identify all the processes
with this problem.

James


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Hi pa-ckers,

My a500 died last night, leaving nothing but this on the console:
http://www.pateam.org/archive/dumps/softlockupa500crash.txt

Don't have much more data. The box wasn't doing anything special: it was
idling...

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [parisc-linux] A500 died - 2.6.17-rc5-pa3
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> My a500 died last night, leaving nothing but this on the console:
> http://www.pateam.org/archive/dumps/softlockupa500crash.txt

Same error as Joel reported a few months ago on n4k.  He can reproduce
it running a stress test with a few days of running.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 6/6/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > Looking over your earlier reply, you indicated that the module must be=20
> > quite "large" - do you mean file size of the .ko file?
> > Because that is way under the 8MB you mentioned - the file is around 200kB =
> > in=20
> > size...
>
> I wonder if that implies a bug a bug in the kernel loader.  I could
> see a problem with PCREL17F relocations with files around 200kB.
> These are used with the PA 1.x "bl" instruction.  The range for
> "bl" instructions is about +/- 262kB.  The range for the 22F "b,l"
> instruction is 32 times larger.

A number of kernel modules fail to load nowadays on parisc. That
includes xfs, netfilter, ipv6... Some are known bloated big ones, but
others are quite surprising. In any case that's clearly a problem we
want to fix at some point.

I remember Randolph saying that might indeed be a kernel loader
issue... Randolph, any thought?

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [parisc-linux] A500 died - 2.6.17-rc5-pa3
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> On 6/5/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > > My a500 died last night, leaving nothing but this on the console:
> > > http://www.pateam.org/archive/dumps/softlockupa500crash.txt
> >
> > Same error as Joel reported a few months ago on n4k.  He can reproduc=
e
> > it running a stress test with a few days of running.
> 
> interestingly, i've been running LTP and had a few 'genload' processes
> left running that I killed in the day preceding the crash...
> 
mmm, not sure but seems related also to this:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2004-November/02528=
6.html>
[snip]
[<000000001016a910>] update_process_times+0x50/0x90 
[<00000000101269b8>] smp_do_timer+0x78/0x80 
[<000000001011b120>] timer_interrupt+0xd8/0x2f0 
[<000000001011bed8>] do_irq+0xd8/0x1e8 
[<000000001011c0c8>] do_cpu_irq_mask+0xe0/0x150 
[<0000000010107074>] intr_return+0x0/0x24 
[snip]

and related threads (next month too)

No?


Joel
=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devenez au=
jourd'hui Scarlet One grace a un client existant de Scarlet, vous recevez=
 tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur http:/=
/www.clubscarlet.be

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On Tue June 6 2006 23:09, John David Anglin wrote:
> 
> There are some subtle cache issues in all this.  I believe that
> machines using the PA7200 through to the PA8700 only utilize an
> L1 cache, but it has an assist buffer.  It appears using the ",sl"
> completer bypasses the L1 cache.  Michael Zick thought using this
> to reset the lock and in lock tests was a good idea, but think
> it's better to use the L1.  The effect of ",sl" on cacheline states
> is rather poorly document.  Michael has looked at some of HP's
> patents and a bunch of other papers, but I'm not convinced.  The
> PDC_CACHE command may be able to change the coherency state and
> write-back/write-through state of the data caches on some machines.
>

I suspect that the problem is more subtle than our testing.
My mind is still spinning on how to write a good test.
Working only with public documents leaves more than one gray area.
 
> The cache design was changed on the PA8800 and PA8900.  The L1
> is now on-chip and there is a large L2.  The cacheline length
> also increased from 64 to 128 bytes.  These changes could be
> part of the reason linux still doesn't run on these machines.
> 

There are two other possibilities with the dual-core processors;

1) The on-chip caches are _publicly_ documented to not do cache-line
passing internally.  Cache-lines are still passed over the external
buss.  This may be a gray area in the public documents.

2) The "old school" (prior to pa8800/pa8900) machines could rely on
the buss timing to guarantee that coherency arbitration always won
the race with buss arbitration.
The new runway buss is running DDR (double data rate) with both edges
of the clock active.  The overall effect of this change is another
gray area in the public documents.

> 
> Joel ran a test kernel with a patch to align statically allocated
> locks.  It might have run a bit longer than average but there was
> still a softlockup after a few days.  So, I don't think the lockup
> is due to the spinlock design per say, although I could easily
> be wrong.  I think it's more likely to be something to do with
> interrupt handling.  This is suggested by the stack traces which
> often seem to occur in the interrupt return path.
> 

There may well be more than one subtle failure involved.  
It may not be a single point (spinlocks) failure.

> I've looked at the locking in hpux a bit.  As far as I can tell,
> the kernel never really spins.  It has code to do pre-arbitration
> and keeps track of tasks and priorities.  When a lock is released,
> the code calls into suwaiters to see if the lock should be handed
> over to another task or released.  When we just spin, we are relying
> on the bus arbitration to select a winner.  So, when we have a
> highly contended lock, it might be  possible for a cpu to get locked
> out for sufficient time to cause a softlockup.
> 

I never went back to correct the state tables in the document I worked
up to match the most recent code snippets...

I will fix that and then post a link on this list.

Right or wrong - that document gives us the ground work for lock passing
and lock failure recovery without ever having seen HPUX.

I can see where gains could be made in the 4 or more processor case, but
not anything that would help Joel's 2 processor machine.

I still think it will require a good test protocol to find this problem
and I am still stuck on finding a good test protocol.

> Dave

Mike
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On 6/5/06, Mike Frysinger <vapier@gentoo.org> wrote:
> On Monday 29 May 2006 11:41, Carlos O'Donell wrote:
> > This will never happen for linuxthreads.
>
> why not ?  Daniel is still merging fixes into linuxthreads if you post to the
> libc-ports mailing list
> -mike

I shouldn't say words like "never" ...
It might happen with a good argument, clean patch, bugging daniel, and testing.
This is all work that I'm not excited about, since I'd rather get NPTL working.

c.
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On 6/4/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> I'm about to throw the following change to the garbage heap since it
> doesn't work as expected, particularly with SMP kernels.
>
> The problem is I still see occasional libstdc++ and libjava testsuite
> failures in pthread process intensive tests.  In particular, I'm getting
> timeouts on tests that didn't timeout before.

These could very well be related to our linuxthreads implementation?

It could be related to a problem with signals, which manifests as a
thread-manager issue, which under linuxthreads can break everything.
The thread-manager does all of it's work using a pipe and signals...
lots and lots of signals.

> The enclosed change is based on ideas presented in the paper,
> "Implementing Spinlocks on the Intel Itanium Architecture and PA-RISC".
>
> The main issue that the change tries to address is that spinning
> indefinitely in user space on a UP kernel just burns cycles.  So, the
> change is to spin awhile and then sleep.  This seemed to work with
> the test application in the paper, but in practice it seems to cause
> more test failures that just spinning, particularly on SMP kernels.
> I suspect that on SMP kernels we sometimes end up with all threads
> sleeping.
>
> I've tried various sleep routines including sched_yield, and other
> optimizations, but they don't seem to make a difference.  The trick
> to dirty the cacheline presented in the paper didn't help performance
> as measured by the Appendix F program.  I also didn't see
> and difference in performance using the ",co" completer.  Possibly,
> this is because I only tested on coherent PA 2.0 machines.
>
> Thoughts?

You've implemented almost exactly what glibc does for pthreads.
However, glibc uses nanosleep without any adverse effects.
Have you tried other syscalls instead of select?

Cheers,
Carlos.
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Xref: news.gmane.org gmane.linux.ports.parisc:23733

Hi pa-ckers,

I'm about to release an update to our Boot Howto, but before doing so
I'd like to get some review from the community, in order to make sure
I haven't missed the obvious or forgot about something important.

The current howto can be fetched here:
http://www.pateam.org/archive/tmp/

There's both the PDF (for viewing, though the style will differ a bit
from other TLDP howtos as I didn't use exactly TLP's DTD) and XML for
people willing to send patches ;)

I expect to release this sometime next week, so
feedback/comments/patches welcome!

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Xref: news.gmane.org gmane.linux.ports.parisc:23734

> There definitely are some funky things going on in the kernel.
> For example, if I try to build GCC with 'make -j 4 bootstrap' on
> gsyprf11, about 50% of the time make dies because of a malloc data
> corruption or a shell problem.  However, I never see this with
> just 'make bootstrap'.

This is an example:

/home/dave/gcc-4.2/objdir/./prev-gcc/xgcc -B/home/dave/gcc-4.2/objdir/./prev-gcc
/ -B/home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux/bin/ -c   -g -O2 -DIN_GCC   -W -
Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-lon
g-long -Wno-variadic-macros -Wno-overlength-strings -Wold-style-definition -Wmis
sing-format-attribute -Werror -fno-common   -DHAVE_CONFIG_H -I. -I. -I../../gcc/
gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/inclu
de  -I../../gcc/gcc/../libdecnumber -I../libdecnumber    ../../gcc/gcc/c-typeck.
c -o c-typeck.o
/bin/sh: line 6: 24262 Segmentation fault      (core dumped) make "DESTDIR=" "RP
ATH_ENVVAR=LD_LIBRARY_PATH" "TARGET_SUBDIR=hppa-linux" "bindir=/home/dave/opt/gn
u/gcc/gcc-4.2.0/bin" "datadir=/home/dave/opt/gnu/gcc/gcc-4.2.0/share" "exec_pref
ix=/home/dave/opt/gnu/gcc/gcc-4.2.0" "includedir=/home/dave/opt/gnu/gcc/gcc-4.2.
0/include" "datarootdir=/home/dave/opt/gnu/gcc/gcc-4.2.0/share" "docdir=/home/da
ve/opt/gnu/gcc/gcc-4.2.0/share/doc" "infodir=/home/dave/opt/gnu/gcc/gcc-4.2.0/in
fo" "htmldir=/home/dave/opt/gnu/gcc/gcc-4.2.0/share/doc" "libdir=/home/dave/opt/
gnu/gcc/gcc-4.2.0/lib" "libexecdir=/home/dave/opt/gnu/gcc/gcc-4.2.0/libexec" "li
spdir=" "localstatedir=/home/dave/opt/gnu/gcc/gcc-4.2.0/var" "mandir=/home/dave/
opt/gnu/gcc/gcc-4.2.0/man" "oldincludedir=/usr/include" "prefix=/home/dave/opt/g
nu/gcc/gcc-4.2.0" "sbindir=/home/dave/opt/gnu/gcc/gcc-4.2.0/sbin" "sharedstatedi
r=/home/dave/opt/gnu/gcc/gcc-4.2.0/com" "sysconfdir=/home/dave/opt/gnu/gcc/gcc-4
.2.0/etc" "tooldir=/home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux" "build_tooldir=/
home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux" "target_alias=hppa-linux" "BISON=bis
on" "CC_FOR_BUILD=gcc" "CFLAGS_FOR_BUILD=-g -O2" "CXX_FOR_BUILD=c++" "EXPECT=/ho
me/dave/opt/gnu/bin/expect" "FLEX=flex" "INSTALL=/usr/bin/install -c" "INSTALL_D
ATA=/usr/bin/install -c -m 644" "INSTALL_PROGRAM=/usr/bin/install -c" "INSTALL_S
CRIPT=/usr/bin/install -c" "LEX=flex" "M4=m4" "MAKE=make" "RUNTEST=runtest" "RUN
TESTFLAGS=" "SHELL=/bin/sh" "YACC=bison -y" "`echo 'ADAFLAGS=' | sed -e s'/[^=][
^=]*=$/XFOO=/'`" "AR_FLAGS=rc" "`echo 'BOOT_ADAFLAGS=' | sed -e s'/[^=][^=]*=$/X
FOO=/'`" "BOOT_CFLAGS=-g -O2" "BOOT_LDFLAGS=" "CFLAGS=-g -O2" "CXXFLAGS=-g -O2"
"LDFLAGS=" "LIBCFLAGS=-g -O2" "LIBCXXFLAGS=-g -O2 -fno-implicit-templates" "STAG
E1_CFLAGS=-g" "STAGE1_LANGUAGES=c,ada" "AR_FOR_TARGET=ar" "AS_FOR_TARGET=as" "CC
_FOR_TARGET=/home/dave/gcc-4.2/objdir/./gcc/xgcc -B/home/dave/gcc-4.2/objdir/./g
cc/ -B/home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux/bin/ -B/home/dave/opt/gnu/gcc/
gcc-4.2.0/hppa-linux/lib/ -isystem /home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux/i
nclude -isystem /home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux/sys-include" "CFLAGS
_FOR_TARGET=-O2 -g -O2 " "CPPFLAGS_FOR_TARGET=" "CXX_FOR_TARGET=/home/dave/gcc-4
.2/objdir/./gcc/g++ -B/home/dave/gcc-4.2/objdir/./gcc/ -nostdinc++  -L/home/dave
/gcc-4.2/objdir/hppa-linux/libstdc++-v3/src -L/home/dave/gcc-4.2/objdir/hppa-lin
ux/libstdc++-v3/src/.libs -B/home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux/bin/ -B/
home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux/lib/ -isystem /home/dave/opt/gnu/gcc/
gcc-4.2.0/hppa-linux/include -isystem /home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linu
x/sys-include" "CXXFLAGS_FOR_TARGET=-g -O2  -D_GNU_SOURCE" "DLLTOOL_FOR_TARGET=d
lltool" "GCJ_FOR_TARGET=/home/dave/gcc-4.2/objdir/./gcc/gcj -B/home/dave/gcc-4.2
/objdir/./gcc/ -B/home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux/bin/ -B/home/dave/o
pt/gnu/gcc/gcc-4.2.0/hppa-linux/lib/ -isystem /home/dave/opt/gnu/gcc/gcc-4.2.0/h
ppa-linux/include -isystem /home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux/sys-inclu
de" "GFORTRAN_FOR_TARGET=/home/dave/gcc-4.2/objdir/./gcc/gfortran -B/home/dave/g
cc-4.2/objdir/./gcc/ -B/home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux/bin/ -B/home/
dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux/lib/ -isystem /home/dave/opt/gnu/gcc/gcc-4
.2.0/hppa-linux/include -isystem /home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux/sys
-include" "LD_FOR_TARGET=ld" "LIPO_FOR_TARGET=lipo" "LDFLAGS_FOR_TARGET=" "LIBCF
LAGS_FOR_TARGET=-O2 -g -O2 " "LIBCXXFLAGS_FOR_TARGET=-g -O2  -D_GNU_SOURCE -fno-
implicit-templates" "NM_FOR_TARGET=nm" "OBJDUMP_FOR_TARGET=objdump" "RANLIB_FOR_
TARGET=ranlib" "STRIP_FOR_TARGET=strip" "WINDRES_FOR_TARGET=windres" "`echo 'LAN
GUAGES=' | sed -e s'/[^=][^=]*=$/XFOO=/'`" "LEAN=false" "CONFIG_SHELL=/bin/sh" "
MAKEINFO=makeinfo --split-size=5000000 --split-size=5000000 --split-size=5000000
" 'AR=ar' 'AS=as' 'CC=gcc' 'CXX=c++' 'DLLTOOL=dlltool' 'LD=ld' 'LIPO=lipo' 'NM=n
m' 'OBJDUMP=objdump' 'RANLIB=ranlib' 'STRIP=strip' 'WINDRES=windres' CC="${CC}"
CC_FOR_BUILD="${CC_FOR_BUILD}" STAGE_PREFIX=$r/prev-gcc/ CFLAGS="-g -O2" LIBCFLA
GS="-g -O2" LDFLAGS="" "`echo 'ADAFLAGS=' | sed -e s'/[^=][^=]*=$/XFOO=/'`" "GCC
_FOR_TARGET= $r/./gcc/xgcc -B$r/./gcc/ -B/home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-l
inux/bin/ -B/home/dave/opt/gnu/gcc/gcc-4.2.0/hppa-linux/lib/ -isystem /home/dave
/opt/gnu/gcc/gcc-4.2.0/hppa-linux/include -isystem /home/dave/opt/gnu/gcc/gcc-4.
2.0/hppa-linux/sys-include" "`echo 'STMP_FIXPROTO=' | sed -e s'/[^=][^=]*=$/XFOO
=/'`" "`echo 'LIMITS_H_TEST=' | sed -e s'/[^=][^=]*=$/XFOO=/'`" "`echo 'LIBGCC2_
CFLAGS=' | sed -e s'/[^=][^=]*=$/XFOO=/'`" "`echo 'LIBGCC2_DEBUG_CFLAGS=' | sed
-e s'/[^=][^=]*=$/XFOO=/'`" "`echo 'LIBGCC2_INCLUDES=' | sed -e s'/[^=][^=]*=$/X
FOO=/'`" `if [ -f stage_last ]; then echo quickstrap ; else echo all; fi`
make[2]: *** [all-stage2-gcc] Error 139
make[2]: Leaving directory `/home/dave/gcc-4.2/objdir'
make[1]: *** [stage2-bubble] Error 2
make[1]: Leaving directory `/home/dave/gcc-4.2/objdir'
make: *** [bootstrap] Error 2
make: INTERNAL: Exiting with 1 jobserver tokens available; should be 4!
Wed Jun  7 20:19:18 PDT 2006

>>From /var/log/debug:

Jun  7 20:19:18 gsyprf11 kernel: do_page_fault() pid=24262 command='make' type=1
5 address=0x1118498f
Jun  7 20:19:18 gsyprf11 kernel: vm_start = 0x00048000, vm_end = 0x00607000
Jun  7 20:19:18 gsyprf11 kernel:
Jun  7 20:19:18 gsyprf11 kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Jun  7 20:19:18 gsyprf11 kernel: PSW: 00000000000001000000000000001111 Not taint
ed
Jun  7 20:19:18 gsyprf11 kernel: r00-03  0000000000000000 00000000000476e8 00000
00000029b03 00000000bff07800
Jun  7 20:19:18 gsyprf11 kernel: r04-07  000000000009b268 0000000000000000 00000
0000010fe80 00000000000d8680
Jun  7 20:19:18 gsyprf11 kernel: r08-11  00000000000d8680 0000000000000000 00000
0000010fe80 0000000000000000
Jun  7 20:19:18 gsyprf11 kernel: r12-15  000000000009b1f0 0000000000000000 00000
00000000014 0000000000000000
Jun  7 20:19:18 gsyprf11 kernel: r16-19  0000000000000001 0000000000000001 00000
000000476e8 0000000000000000
Jun  7 20:19:18 gsyprf11 kernel: r20-23  00000000001dfca0 0000000000000000 00000
000c0000003 0000000000000000
Jun  7 20:19:18 gsyprf11 kernel: r24-27  0000000000000001 0000000000000016 00000
000001dfca0 00000000000466e8
Jun  7 20:19:18 gsyprf11 kernel: r28-31  0000000011184943 0000000040000003 00000
00003bd6800 0000000003bd6800
Jun  7 20:19:18 gsyprf11 kernel:
Jun  7 20:19:18 gsyprf11 kernel: IASQ: 0000000003bd6800 0000000003bd6800 IAOQ: 0
000000000029aa3 0000000000029aa7
Jun  7 20:19:18 gsyprf11 kernel:  IIR: 4b930098    ISR: 0000000003bd6800  IOR: 0
00000001118498f
Jun  7 20:19:18 gsyprf11 kernel:  CPU:        1   CR30: 000000001abb0000 CR31: 0
000000000008020
Jun  7 20:19:18 gsyprf11 kernel:  ORIG_R28: 0000000000000000
Jun  7 20:19:18 gsyprf11 kernel:  IAOQ[0]: 0x29aa3
Jun  7 20:19:18 gsyprf11 kernel:  IAOQ[1]: 0x29aa7
Jun  7 20:19:18 gsyprf11 kernel:  RP(r2): 0x29b03

dave@hiauly6:~/opt/gnu/bin$ disasm 0x4b930098
   0:   4b 93 00 98     ldw 4c(ret0),r19

(gdb) disass 0x29a90 0x29ab0
Dump of assembler code from 0x29a90 to 0x29ab0:
0x00029a90 <close_stdout+25828>:        copy ret0,r20
0x00029a94 <close_stdout+25832>:        ldw 48(r20),ret0
0x00029a98 <close_stdout+25836>:        cmpiclr,<> 0,ret0,r0
0x00029a9c <close_stdout+25840>:        copy r20,ret0
0x00029aa0 <close_stdout+25844>:        ldw 4c(ret0),r19

%ret0 is both misaligned and appears outside the VM range for the application.

The backtrace isn't particularly enlightening (need debug version of make).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > Thoughts?
> 
> You've implemented almost exactly what glibc does for pthreads.
> However, glibc uses nanosleep without any adverse effects.
> Have you tried other syscalls instead of select?

I've also tried nanosleep and sched_yield.  I would say that
nanosleep and select have similar behavior under linux.  I need
a little testing under hpux but I currently have the impression
that the patch with either nanosleep or select works under hpux.

I've had a coupled of failures that seemed to indicate a problem
with nanosleep, but I don't have hard data on this.  Oh, I remember.
These were unkillable java tasks.  strace indicated a nanosleep
call to the kernel that never returned.  I couldn't find a signal
to get rid of the task.  Haven't seen one of these for a few days.
Sometimes they are left over from the libjava testsuite run.

My initial testing with the program from the paper modified to
8 threads seemed to indicate somewhat poorer performance using
sched_yield (don't know why).  I also found that pre-checks
of the lock using "ldw" or trying to create a dirty cache-line
prior to the ldcw didn't help overall performance.  Using stby,e
to the high byte of the lock was definitely detrimental.

I think I can understand the later.  I believe most PA 2.0 machines
are fully coherent (except V class and possibly superdome).  Thus,
the ldcw instruction runs in cache on these machines and specifying
the ",co" completer doesn't matter.  Also, stby,e is just an unnecessary
operation that occurs normally with ldcw if necessary.  There might
be some effect on early PA 1.x machines which don't support executing
ldcw in cache.

There are some subtle cache issues in all this.  I believe that
machines using the PA7200 through to the PA8700 only utilize an
L1 cache, but it has an assist buffer.  It appears using the ",sl"
completer bypasses the L1 cache.  Michael Zick thought using this
to reset the lock and in lock tests was a good idea, but think
it's better to use the L1.  The effect of ",sl" on cacheline states
is rather poorly document.  Michael has looked at some of HP's
patents and a bunch of other papers, but I'm not convinced.  The
PDC_CACHE command may be able to change the coherency state and
write-back/write-through state of the data caches on some machines.

The cache design was changed on the PA8800 and PA8900.  The L1
is now on-chip and there is a large L2.  The cacheline length
also increased from 64 to 128 bytes.  These changes could be
part of the reason linux still doesn't run on these machines.

Some of the papers talk about sharing and false sharing.  These
can potentially cause failure of ldcw (race condition in bus logic?).
It is best is semaphores are cacheline aligned and don't share the line.
Currently, non of the locks used in arch/parisc are cacheline aligned.

Joel ran a test kernel with a patch to align statically allocated
locks.  It might have run a bit longer than average but there was
still a softlockup after a few days.  So, I don't think the lockup
is due to the spinlock design per say, although I could easily
be wrong.  I think it's more likely to be something to do with
interrupt handling.  This is suggested by the stack traces which
often seem to occur in the interrupt return path.

I've looked at the locking in hpux a bit.  As far as I can tell,
the kernel never really spins.  It has code to do pre-arbitration
and keeps track of tasks and priorities.  When a lock is released,
the code calls into suwaiters to see if the lock should be handed
over to another task or released.  When we just spin, we are relying
on the bus arbitration to select a winner.  So, when we have a
highly contended lock, it might be  possible for a cpu to get locked
out for sufficient time to cause a softlockup.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Thibaut VARENE wrote:

> Hi pa-ckers,
>
> I'm about to release an update to our Boot Howto, but before doing so
> I'd like to get some review from the community, in order to make sure
> I haven't missed the obvious or forgot about something important.
>
> The current howto can be fetched here:
> http://www.pateam.org/archive/tmp/
>
> There's both the PDF (for viewing, though the style will differ a bit
> from other TLDP howtos as I didn't use exactly TLP's DTD) and XML for
> people willing to send patches ;)
>
> I expect to release this sometime next week, so
> feedback/comments/patches welcome!
>

That's a verry nice compilation. I'd like to add some pointers:

The OpenPA Project, that has a very nice overview of old and not so old 
HP hardware: http://www.openpa.net/. I see it as suplemental to your 
chapter 1 on supported hardware: it just contains far more information.

About serial cosoles (your chapter 2.2.2): Add a pointer to make the HP 
9000/712 work on serial console: 
http://www.netbsd.org/Ports/hp700/serialconsole-712.html. Some additions 
to this document: it also includes a way to update the firmware over the 
network, without HP-UX and without a tape-device.

Then there is 
http://www.netbsd.org/Documentation/network/netboot/intro.hp700.html, 
the net-bsd document on network booting and diskless operating. I found 
valuable information there, however I see you have covered most (all) of 
it in your document.

Once your document is finished, it would be nice if you inform 
http://www.openpa.net/ about it so they can set a pointer to your document.


Regards

CBee



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Randolph,

Everything for libc-ports is upstream, even fixes for errlist-compat
(new errnos added to the kernel mandated a new symbol).

I'm seeing the funny tst-printfsz failures. Not sure what to make of these.

Cheers,
Carlos.

make[2]: *** [/libc/math/test-float.out] Error 1
make[2]: *** [/libc/math/test-double.out] Error 1
make[2]: *** [/libc/math/test-ifloat.out] Error 1
make[2]: *** [/libc/math/test-idouble.out] Error 1
make[1]: *** [math/tests] Error 2
make[2]: *** [/libc/stdio-common/tst-printfsz.out] Error 139
make[2]: *** [/libc/stdio-common/tst-printf.out] Error 1
make[1]: *** [stdio-common/tests] Error 2
make[2]: [/libc/posix/annexc.out] Error 1 (ignored)
make[2]: *** [/libc/linuxthreads/tst-clock1.out] Error 1
make[2]: *** [/libc/linuxthreads/tst-attr1.out] Error 1
make[1]: *** [linuxthreads/tests] Error 2
make[2]: *** [/libc/rt/tst-aio9.out] Error 1
make[2]: *** [/libc/rt/tst-aio10.out] Error 1
make[1]: *** [rt/tests] Error 2
make[2]: *** [/libc/elf/tst-pie1.out] Error 139
make[2]: *** [/libc/elf/tst-leaks1-mem] Error 1
make[2]: *** [/libc/elf/order.out] Error 1
make[2]: *** [/libc/elf/nodelete2.out] Error 1
make[2]: *** [/libc/elf/tst-align2.out] Error 1
make[2]: *** [/libc/elf/order2.out] Error 1
make[2]: *** [/libc/elf/tst-audit2.out] Error 139
make[2]: *** [/libc/elf/check-textrel.out] Error 1
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2
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On Wed June 7 2006 07:25, Michael S. Zick wrote:
> On Tue June 6 2006 23:09, John David Anglin wrote:
> > 
> > 
> > I've looked at the locking in hpux a bit.  As far as I can tell,
> > the kernel never really spins.  It has code to do pre-arbitration
> > and keeps track of tasks and priorities.  When a lock is released,
> > the code calls into suwaiters to see if the lock should be handed
> > over to another task or released.  When we just spin, we are relying
> > on the bus arbitration to select a winner.  So, when we have a
> > highly contended lock, it might be  possible for a cpu to get locked
> > out for sufficient time to cause a softlockup.
> > 
> 
> I never went back to correct the state tables in the document I worked
> up to match the most recent code snippets...
> 
> I will fix that and then post a link on this list.
> 

Document is now updated.  Intended to be a continuation of Dave's one
spinlock per cache-line experimental patch.

See:
http://www.morethan.org/parisc/pa-spinlocks.html
http://www.morethan.org/parisc/pa-spinlocks.pdf

>
> Right or wrong - that document gives us the ground work for lock passing
> and lock failure recovery without ever having seen HPUX.
>

Document does not yet have pa-risc examples of lock passing and lock failure
recovery - you need to consult the references made for those at this point.
 
> 
> > Dave
> 
> Mike

Mike
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On 6/11/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> (gdb) p *spinlock
> $10 = {lock = {0, 0, 0, 0}} <== we would see some ones if initialized
> So, I believe the value for spinlock in the backtrace.  Thus, this is
> probably a libgfortran issue.

That is good news! It's an unfortuante side-effect of our lock code.
Which goes away in NPTL ... thankfully.

Cheers,
Carlos.
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> On 6/11/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > (gdb) p *spinlock
> > $10 = {lock = {0, 0, 0, 0}} <== we would see some ones if initialized
> > So, I believe the value for spinlock in the backtrace.  Thus, this is
> > probably a libgfortran issue.

In the first call to st_write_done, I see:

(gdb) p *((st_parameter_dt *)$r26)->u.p.current_unit
$38 = {unit_number = -1, s = 0x193248, left = 0x0, right = 0x0, priority = 0,
  read_bad = 1, current_record = 1, endfile = NO_ENDFILE, mode = WRITING,
  flags = {access = ACCESS_SEQUENTIAL, action = ACTION_READWRITE,
  blank = BLANK_NULL, delim = DELIM_NONE, form = FORM_FORMATTED,
  is_notpadded = 0, position = POSITION_ASIS, status = STATUS_UNSPECIFIED,
  pad = PAD_YES, convert = CONVERT_NATIVE}, recl = 36, last_record = 0,
  maxrec = 0, bytes_left = 0, lock = {__m_reserved = 0, __m_count = 0,
  __m_owner = 0x0, __m_kind = 0, __m_lock = {__spinlock = {lock = {0, 0, 0,
  0}}, __status = 0}}, waiting = 0, closed = 0, ls = 0x0, rank = 0,
  file_len = 0, file = 0x0}

The only unit numbers that I see being initialized are 5, 6 and 0.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> That is good news! It's an unfortuante side-effect of our lock code.
> Which goes away in NPTL ... thankfully.

Here's another one (libjava Process_3.exe):

(gdb) bt
#0  0x4005e1f4 in nanosleep () from /lib/libpthread.so.0
#1  0x40059270 in __pthread_timedsuspend_new () from /lib/libpthread.so.0
#2  0x40056414 in pthread_cond_timedwait@GLIBC_2.2 () from /lib/libpthread.so.0
#3  0x41872de8 in _Jv_CondWait (cv=0x402bde20, mu=0x402bde30,
    millis=<value optimized out>, nanos=0)
    at ../../../gcc/libjava/posix-threads.cc:169
#4  0x4185f3d0 in java::lang::Object::wait (this=0x0, timeout=1000, nanos=0)
    at ../../../gcc/libjava/java/lang/natObject.cc:1333
#5  0x4184a48c in java.lang.Object.wait(long)void (this=0x432fd9d0,
    timeout=35486947928) at ../../../gcc/libjava/java/lang/Object.java:449
#6  0x41c97ee0 in java.lang.ConcreteProcess$ProcessManager.run()void (
    this=0x40536f50) at ConcreteProcess.java:142
#7  0x41864104 in _Jv_ThreadRun (thread=0x40536f50)
    at ../../../gcc/libjava/java/lang/natThread.cc:302
#8  0x41872770 in really_start (x=0x401d9830)
    at ../../../gcc/libjava/posix-threads.cc:432
#9  0x424d93e0 in GC_start_routine (arg=0x401f6e80)
    at ../../../gcc/boehm-gc/pthread_support.c:1191
#10 0x40057498 in pthread_start_thread () from /lib/libpthread.so.0
#11 0x40933754 in clone () from /lib/libc.so.6
#12 0x40933754 in clone () from /lib/libc.so.6
Previous frame identical to this frame (corrupt stack?)

After the testsuite had completed, I noticed that two Process_3 processes
were still running.  I attached to both with strace but there wasn't any
syscall activity in either.  I then killed the process that top said was
using almost 100% of the cpu with SIGABRT and got a core dump with the
above backtrace.  I'm now left with:

dave      7124     1 92 08:13 ?        12:29:14 [Process_3.exe]

>>From past experience, rebooting is the only way to get rid of this
task.  This was using a 32-bit c3k kernel (2.6.17-rc3-pa3).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] User space locks -- what's wrong
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On 6/11/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> (gdb) p *((st_parameter_dt *)$r26)->u.p.current_unit
> $38 = {unit_number = -1, s = 0x193248, left = 0x0, right = 0x0, priority = 0,
>   read_bad = 1, current_record = 1, endfile = NO_ENDFILE, mode = WRITING,
>   flags = {access = ACCESS_SEQUENTIAL, action = ACTION_READWRITE,
>   blank = BLANK_NULL, delim = DELIM_NONE, form = FORM_FORMATTED,
>   is_notpadded = 0, position = POSITION_ASIS, status = STATUS_UNSPECIFIED,
>   pad = PAD_YES, convert = CONVERT_NATIVE}, recl = 36, last_record = 0,
>   maxrec = 0, bytes_left = 0, lock = {__m_reserved = 0, __m_count = 0,
>   __m_owner = 0x0, __m_kind = 0, __m_lock = {__spinlock = {lock = {0, 0, 0,
>   0}}, __status = 0}}, waiting = 0, closed = 0, ls = 0x0, rank = 0,
>   file_len = 0, file = 0x0}
>
> The only unit numbers that I see being initialized are 5, 6 and 0.

The "lock" variable must always be initialized.
The value of __GTHREAD_MUTEX_INIT should be set to PTHREAD_MUTEX_INITIALIZER.

There might be some missing initializers, or memsets, which don't show
problems on i686-pc-linux-gnu, but are invalid things to do on hppa :)

I see that "unit_lock" is initialized properly, without this nothing would work.

There is a bug in "get_internal_unit" where there is a memset of a
"gfc_unit" without a mutex initializer.

Index: libgfortran/io/unit.c
===================================================================
--- libgfortran/io/unit.c       (revision 114219)
+++ libgfortran/io/unit.c       (working copy)
@@ -376,7 +376,16 @@
     }

   memset (iunit, '\0', sizeof (gfc_unit));
+#ifdef __GTHREAD_MUTEX_INIT
+  {
+    __gthread_mutex_t tmp = __GTHREAD_MUTEX_INIT;
+    iunit->lock = tmp;
+  }
+#else
+  __GTHREAD_MUTEX_INIT_FUNCTION (&iunit->lock);
+#endif

+
   iunit->recl = dtp->internal_unit_len;

   /* For internal units we set the unit number to -1.

Please verify.

Cheers,
Carlos.


Cheers,
Carlos.
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> You've implemented almost exactly what glibc does for pthreads.
> However, glibc uses nanosleep without any adverse effects.

Are you sure?  The libgomp test libgomp.fortran/reduction6.f90
times out.  It's using pthread_mutex_lock and pthread_mutex_unlock
for locking (there's no futex implementation for parisc-linux).

I see with top:

top - 13:30:57 up 7 days, 22:52,  3 users,  load average: 0.00, 0.00, 0.00
Tasks:  73 total,   1 running,  72 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.2% us,  0.3% sy,  0.0% ni, 99.3% id,  0.2% wa,  0.0% hi,  0.0% si
Mem:   8227376k total,  8025664k used,   201712k free,   489404k buffers
Swap:  1367032k total,        0k used,  1367032k free,  3775216k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND

 ...
 7430 dave      15   0  8076  988  768 S    0  0.0   0:00.05 reduction6.xg
 7431 dave      16   0  8076  988  768 S    0  0.0   0:00.00 reduction6.xg
 7432 dave      19   0  8076  988  768 S    0  0.0   0:00.00 reduction6.xg
 7433 dave      20   0  8076  988  768 S    0  0.0   0:00.00 reduction6.xg
 ...

strace indicates that the reduction6.xg processes are mainly calling
sched_yield(), and occassionally nanosleep().

The program doesn't timeout under hpux.  I killed the program after 50m
on linux.  It appears that we are deadlocking on linux.  The time on
a relatively slow hpux system is:

# time ./reduction6.xg

real    0m0.047s
user    0m0.030s
sys     0m0.010s

It appears that the hpux built application never sleeps or calls
sched_yield.  Under linux, I see after running a bit the following
backtrace in nanosleep:

Program received signal SIGINT, Interrupt.
0x00032310 in nanosleep ()
(gdb) bt
#0  0x00032310 in nanosleep ()
#1  0x0003189c in __pthread_acquire (spinlock=0x191030) at spinlock.c:716
#2  0x000319d4 in __pthread_alt_unlock (lock=0xbff00d4c) at spinlock.c:527
#3  0x0002ef18 in __pthread_mutex_unlock (mutex=<value optimized out>)
    at mutex.c:199
#4  0x00015388 in *_gfortran_st_write_done (dtp=0xbff00aa8)
    at ../../../gcc/libgfortran/io/transfer.c:2424
#5  0x000105ac in MAIN__ ()
    at /home/dave/gcc-4.2/gcc/libgomp/testsuite/libgomp.fortran/reduction6.f90:10
#6  0x00011e58 in main (argc=<value optimized out>, argv=<value optimized out>)
    at ../../../gcc/libgfortran/fmain.c:18

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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> However, the mutex objects look like they are being cached? There
> could be a scenario where an allocated and locked mutex is put back in
> the cache, such a mutex cannot be cleaned without resetting with
> __PTHREAD_MUTEX_INITIALIZER.

Hmmm, that reminds me that there is this config variable in configure.host,
'slow_pthread_self'.

#   slow_pthread_self   The synchronization code should try to avoid
#                       pthread_self calls by caching thread IDs in a hashtable

There's also 'enable_hash_synchronization_default'.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 6/11/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> (gdb) bt
> #0  0x4005e1f4 in nanosleep () from /lib/libpthread.so.0
> #1  0x40059270 in __pthread_timedsuspend_new () from /lib/libpthread.so.0
> #2  0x40056414 in pthread_cond_timedwait@GLIBC_2.2 () from /lib/libpthread.so.0
> #3  0x41872de8 in _Jv_CondWait (cv=0x402bde20, mu=0x402bde30,
>     millis=<value optimized out>, nanos=0)
>     at ../../../gcc/libjava/posix-threads.cc:169
> #4  0x4185f3d0 in java::lang::Object::wait (this=0x0, timeout=1000, nanos=0)
>     at ../../../gcc/libjava/java/lang/natObject.cc:1333
> #5  0x4184a48c in java.lang.Object.wait(long)void (this=0x432fd9d0,
>     timeout=35486947928) at ../../../gcc/libjava/java/lang/Object.java:449
> #6  0x41c97ee0 in java.lang.ConcreteProcess$ProcessManager.run()void (
>     this=0x40536f50) at ConcreteProcess.java:142
> #7  0x41864104 in _Jv_ThreadRun (thread=0x40536f50)
>     at ../../../gcc/libjava/java/lang/natThread.cc:302
> #8  0x41872770 in really_start (x=0x401d9830)
>     at ../../../gcc/libjava/posix-threads.cc:432
> #9  0x424d93e0 in GC_start_routine (arg=0x401f6e80)
>     at ../../../gcc/boehm-gc/pthread_support.c:1191
> #10 0x40057498 in pthread_start_thread () from /lib/libpthread.so.0
> #11 0x40933754 in clone () from /lib/libc.so.6
> #12 0x40933754 in clone () from /lib/libc.so.6
> Previous frame identical to this frame (corrupt stack?)

The code in __pthread_timedsuspend_new is *very* signal sensitive.
It masks all signals except the restart signal. If this signal is missed, then
the restart never happens.

   1377       /* Sleep for the required duration. If woken by a signal,
   1378          resume waiting as required by Single Unix Specification.  */
   1379       if (reltime.tv_sec < 0 || __libc_nanosleep(&reltime, NULL) == 0)
   1380         break;
   1381     }

It may be that the kernel timer routines are rounding, and we never
finish off that last little bit of time? If you debug this again, it
would be nice to see what the sleep times are in those variables?

Cheers,
Carlos.
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On 6/11/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > However, the mutex objects look like they are being cached? There
> > could be a scenario where an allocated and locked mutex is put back in
> > the cache, such a mutex cannot be cleaned without resetting with
> > __PTHREAD_MUTEX_INITIALIZER.
>
> Hmmm, that reminds me that there is this config variable in configure.host,
> 'slow_pthread_self'.
>
> #   slow_pthread_self   The synchronization code should try to avoid
> #                       pthread_self calls by caching thread IDs in a hashtable
>
> There's also 'enable_hash_synchronization_default'.

Reading the thread register is a single mfctl, I don't know if that is
considered slow?

Cheers,
Carlos.
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Subject: Re: [parisc-linux] User space locks -- what's wrong
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> > #   slow_pthread_self   The synchronization code should try to avoid
> > #                       pthread_self calls by caching thread IDs in a hashtable
> >
> > There's also 'enable_hash_synchronization_default'.
> 
> Reading the thread register is a single mfctl, I don't know if that is
> considered slow?

Looks like it's the later parameter that affects lock caching:

# Should we use hashtable-based synchronization?
# Currently works only for Linux X86/ia64
# Typically faster and more space-efficient
AC_ARG_ENABLE(hash-synchronization,
  AS_HELP_STRING([--enable-hash-synchronization],
		   [use global hash table for monitor locks]))

I'll try turning this off.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] User space locks -- what's wrong
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On Sun, Jun 11, 2006 at 11:13:33PM -0400, Carlos O'Donell wrote:
> Reading the thread register is a single mfctl, I don't know if that is
> considered slow?

I believe it depends on the source of the "Move From".
But I can't find a table with timing info. (e.g. mfctl CR16).

I did find this bit though:

| 	Most control operations (the "light weight" control ops) are
| handled by a mechanism that is very similar to the way that C/B
| dependencies are handled. The major differences are that there
| are no control rename registers, and there is no bypassing.
| Thus, an instruction that is dependent on a control op will not
| be able to execute until the control op retires. 
...

"Heavy Weight" control ops are the ones where the instruction execution
is serialized completely.

hth,
grant
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On 6/12/06, Grant Grundler <grundler@parisc-linux.org> wrote:
> On Sun, Jun 11, 2006 at 11:13:33PM -0400, Carlos O'Donell wrote:
> > Reading the thread register is a single mfctl, I don't know if that is
> > considered slow?
>
> I believe it depends on the source of the "Move From".
> But I can't find a table with timing info. (e.g. mfctl CR16).

The thread register is CR27, the code to read the value is:

54 static inline struct _pthread_descr_struct * __get_cr27(void)
55 {
56   long cr27;
57   asm ("mfctl %%cr27, %0" : "=r" (cr27) : );
58   return (struct _pthread_descr_struct *) cr27;
59 }

Cheers,
Carlos.
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On 6/11/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > You've implemented almost exactly what glibc does for pthreads.
> > However, glibc uses nanosleep without any adverse effects.
>
> Are you sure?  The libgomp test libgomp.fortran/reduction6.f90
> times out.  It's using pthread_mutex_lock and pthread_mutex_unlock
> for locking (there's no futex implementation for parisc-linux).

Can we get a reduced testcase from this?

> strace indicates that the reduction6.xg processes are mainly calling
> sched_yield(), and occassionally nanosleep().

Yes, the core in glibc reads like this:

linuxthreads/spinlock.c (__pthread_acquire):

    722   READ_MEMORY_BARRIER();
    723
    724   while (testandset(spinlock)) {
    725     if (cnt < MAX_SPIN_COUNT) {
    726       sched_yield();
    727       cnt++;
    728     } else {
    729       tm.tv_sec = 0;
    730       tm.tv_nsec = SPIN_SLEEP_DURATION;
    731       nanosleep(&tm, NULL);
    732       cnt = 0;
    733     }
    734   }

So you will see "sched_yield" and "nanosleep".

> The program doesn't timeout under hpux.  I killed the program after 50m
> on linux.  It appears that we are deadlocking on linux.  The time on
> a relatively slow hpux system is:

If a child misses a signal and doesn't call __pthread_release, then
the lock is held forever.
In which case switching over to futex's, or even LWS CAS is not going to help.

Truth be told, many applications don't call "__pthread_acquire" like
we do, they use a CAS insn to acquire the lock.

We *could* experiment with turning on HAS_COMPARE_AND_SWAP in
linuxthreads, and using the LWS CAS to implement this.

I'm dying for a testcase...

> It appears that the hpux built application never sleeps or calls
> sched_yield.  Under linux, I see after running a bit the following
> backtrace in nanosleep:

Yes, that's an attempt to acquire the lock.

Cheers,
Carlos.
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> On 6/11/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > > You've implemented almost exactly what glibc does for pthreads.
> > > However, glibc uses nanosleep without any adverse effects.
> >
> > Are you sure?  The libgomp test libgomp.fortran/reduction6.f90
> > times out.  It's using pthread_mutex_lock and pthread_mutex_unlock
> > for locking (there's no futex implementation for parisc-linux).
> 
> Can we get a reduced testcase from this?

> We *could* experiment with turning on HAS_COMPARE_AND_SWAP in
> linuxthreads, and using the LWS CAS to implement this.
> 
> I'm dying for a testcase...

The testcase is already quite reduced:

! { dg-do run }

  integer, dimension (6, 6) :: a
  character (36) :: c
  integer nthreads
  a = 9
  nthreads = -1
  call foo (a (2:4, 3:5), nthreads)
  if (nthreads .eq. 3) then
    write (c, '(36i1)') a
    if (c .ne. '999999999999966699966699966699999999') call abort
  end if
contains
  subroutine foo (b, nthreads)
    use omp_lib
    integer, dimension (3:, 5:) :: b
    integer :: err, nthreads
    b = 0
    err = 0
!$omp parallel num_threads (3) reduction (+:b)
    if (any (b .ne. 0)) then
!$omp atomic
      err = err + 1
    end if
!$omp master
    nthreads = omp_get_num_threads ()
!$omp end master
    b = 2
!$omp end parallel
    if (err .gt. 0) call abort
  end subroutine foo
end

I've forgotten all the fortran I ever knew.  In any case, I suspect
a lock initialization problem.  In the first call into __pthread_acquire
with this particular lock, it's not initialized:

(gdb) p *spinlock
$10 = {lock = {0, 0, 0, 0}} <== we would see some ones if initialized
(gdb) bt
#0  __pthread_acquire (spinlock=0x191030) at spinlock.c:710
#1  0x000319d4 in __pthread_alt_unlock (lock=0x191030) at spinlock.c:527
#2  0x0002ef18 in __pthread_mutex_unlock (mutex=<value optimized out>)
    at mutex.c:199
#3  0x00015388 in *_gfortran_st_write_done (dtp=0xbff00aa8)
    at ../../../gcc/libgfortran/io/transfer.c:2424
#4  0x000105ac in MAIN__ ()
    at /home/dave/gcc-4.2/gcc/libgomp/testsuite/libgomp.fortran/reduction6.f90:10
#5  0x00011e58 in main (argc=<value optimized out>, argv=<value optimized out>)
    at ../../../gcc/libgfortran/fmain.c:18
(gdb) p/x *($sp - 0x78)
$11 = 0x191030

So, I believe the value for spinlock in the backtrace.  Thus, this is
probably a libgfortran issue.  

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:23752

> Hello Dave,
> 
> I am not any more on debian hppa list for the moment ;-( , so I put inf=
o here
> temporarely.
> 
> This morning I tried to rebuild my local gcc-4.1 but it failled with th=
is
> failure noticed in config.log:
> [snip]
> configure:2316: gnatgcc -o conftest -g -O2    conftest.c  -lmpfr -lgmp =
1>&5
> /usr/lib/gcc/hppa-linux-gnu/4.0.4/../../../libmpfr.so: undefined refere=
nce to
> `__gmp_rand'
> collect2: ld returned 1 exit status
> configure: failed program was:
> #line 2308 "configure"
> #include "confdefs.h"
> #include <gmp.h>
> #include <mpfr.h>
> int main() {
> mpfr_t n; mpfr_init(n);
> ; return 0; }
> 
> and also noticed that libgmp??? dpkg was upgraded since previous build.=

> 
> Fortunately, I can still grab all src files from previous libgmp releas=
e
> (4.1.4-11) and reinstall a rebuild. Now the gcc-4.1 build continue ;-)
> 
> Any known issue with this new libgmp?
> 
mmm, seems to be well known mpfr pr #362837.

> Thanks,

Now the problem is that mpfr ftbs for hppa as read in
<http://buildd.debian.org/fetch.php?&pkg=3Dmpfr&ver=3D2.2.0.dfsg.1-6&arch=
=3Dhppa&stamp=3D1149775099&file=3Dlog&as=3Draw>
because of many test failures ;-(

I tried '-k' make's option but doesn't help to complete the build?

Also tried to rebuild libs with -O0 (as for m68k), no help.

And finaly older gcc-4.0 as compiler didn't help more.

(btw I didn't yet understand why this lib is neceesary to build gcc: i ju=
st
want to test it (as well as the 64bit x compiler) against kernel, and gli=
bc
for regression testing ;-?

Joel=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devene=
z aujourd'hui Scarlet One grace a un client existant de Scarlet, vous rec=
evez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur ht=
tp://www.clubscarlet.be

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On Wed, 2006-06-14 at 16:02 +0800, Randolph Chung wrote:
> - As an aside, while looking at the module loading problem, I've
> convinced myself that the 64-bit module loader is wrong. OTOH, it
> seems
> to work in most cases, so there's clearly something that I don't yet
> understand.....

Well ... OK ... since I made that work I can try to remember how I did
it ... what seems to be the problem?

James


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> A number of kernel modules fail to load nowadays on parisc. That
> includes xfs, netfilter, ipv6... Some are known bloated big ones, but
> others are quite surprising. In any case that's clearly a problem we
> want to fix at some point.
> 
> I remember Randolph saying that might indeed be a kernel loader
> issue... Randolph, any thought?

ok, several things:

- I looked at fixing this in binutils, which is really the "right" place
to fix this; unfortunately the changes required are very extensive, so I
gave up

- I looked at using -mlong-calls to address this issue. I've added the
missing relocation that was reported in a previous message on this
thread, but there are other problems - with modules compiled with
-mlong-call I am seeing rather bizarre crashes that I have not had time
to debug further. I do not yet know why they are happening, although I
suspect it has to do with bve clobbering r31. I'm not yet sure if this
is a kernel problem or a gcc problem.

- As to "small" modules causing the out of bounds problem - I haven't
really looked at any modules other than ipv6. If there's a particular
one that is "surprising", I can take a look. Usually it's quite obvious
where the out of bounds problem is.

- As an aside, while looking at the module loading problem, I've
convinced myself that the 64-bit module loader is wrong. OTOH, it seems
to work in most cases, so there's clearly something that I don't yet
understand.....

The module loader has a hard coded limit for the number of GOT entries.
We can exceed this rather easily in some cases when we are using long calls.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Hi pa-ckers

I've updated the howto based on various feedback I got, if someone
wants to give it a final look before I submit it to TLDP, it's here:

http://www.pateam.org/archive/tmp/

HTH

T-Bone
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Subject: [parisc-linux] debian Bug#373761 [Was: new debian libgmp
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This followup to just link this thread to debian br ;-/

Joel 
> > Hello Dave,
> > 
> > I am not any more on debian hppa list for the moment ;-( , so I put i=
nfo here
> > temporarely.
> > 
> > This morning I tried to rebuild my local gcc-4.1 but it failled with =
this
> > failure noticed in config.log:
> > [snip]
> > configure:2316: gnatgcc -o conftest -g -O2    conftest.c  -lmpfr -lgm=
p 1>&5
> > /usr/lib/gcc/hppa-linux-gnu/4.0.4/../../../libmpfr.so: undefined refe=
rence to
> > `__gmp_rand'
> > collect2: ld returned 1 exit status
> > configure: failed program was:
> > #line 2308 "configure"
> > #include "confdefs.h"
> > #include <gmp.h>
> > #include <mpfr.h>
> > int main() {
> > mpfr_t n; mpfr_init(n);
> > ; return 0; }
> > 
> > and also noticed that libgmp??? dpkg was upgraded since previous buil=
d.
> > 
> > Fortunately, I can still grab all src files from previous libgmp rele=
ase
> > (4.1.4-11) and reinstall a rebuild. Now the gcc-4.1 build continue ;-=
)
> > 
> > Any known issue with this new libgmp?
> > 
> mmm, seems to be well known mpfr pr #362837.
> 
> > Thanks,
> 
> Now the problem is that mpfr ftbs for hppa as read in
>
<http://buildd.debian.org/fetch.php?&pkg=3Dmpfr&ver=3D2.2.0.dfsg.1-6&arch=
=3Dhppa&stamp=3D1149775099&file=3Dlog&as=3Draw>
> because of many test failures ;-(
> 
> I tried '-k' make's option but doesn't help to complete the build?
> 
> Also tried to rebuild libs with -O0 (as for m68k), no help.
> 
> And finaly older gcc-4.0 as compiler didn't help more.
> 
> (btw I didn't yet understand why this lib is neceesary to build gcc: i =
just
> want to test it (as well as the 64bit x compiler) against kernel, and g=
libc
> for regression testing ;-?
> 
> Joel
> 
=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devenez au=
jourd'hui Scarlet One grace a un client existant de Scarlet, vous recevez=
 tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur http:/=
/www.clubscarlet.be

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On Fri, Jun 16, 2006 at 09:46:20AM -0600, Grant Grundler wrote:
> Adding an arch specific ifdef in driver code needs to have a darn good reason.
> 

The correct solution is,

--- drivers/usb/host/pci-quirks.c	19 Apr 2006 04:56:02 -0000	1.7
+++ drivers/usb/host/pci-quirks.c	16 Jun 2006 15:53:36 -0000
@@ -168,8 +168,6 @@ static int __devinit mmio_resource_enabl
 static void __devinit quirk_usb_handoff_ohci(struct pci_dev *pdev)
 {
 	void __iomem *base;
-	int wait_time;
-	u32 control;
 
 	if (!mmio_resource_enabled(pdev, 0))
 		return;
@@ -180,9 +178,10 @@ static void __devinit quirk_usb_handoff_
 
 /* On PA-RISC, PDC can leave IR set incorrectly; ignore it there. */
 #ifndef __hppa__
-	control = readl(base + OHCI_CONTROL);
+{
+	u32 control = readl(base + OHCI_CONTROL);
 	if (control & OHCI_CTRL_IR) {
-		wait_time = 500; /* arbitrary; 5 seconds */
+		int wait_time = 500; /* arbitrary; 5 seconds */
 		writel(OHCI_INTR_OC, base + OHCI_INTRENABLE);
 		writel(OHCI_OCR, base + OHCI_CMDSTATUS);
 		while (wait_time > 0 &&
@@ -199,6 +198,7 @@ static void __devinit quirk_usb_handoff_
 		/* reset controller, preserving RWC */
 		writel(control & OHCI_CTRL_RWC, base + OHCI_CONTROL);
 	}
+}
 #endif
 
 	/*

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Subject: [parisc-linux] D380 and ext[23] fs grave pb
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Xref: news.gmane.org gmane.linux.ports.parisc:23758

Hello *pa,

Making some stress test to atempt to identify some smp pb on my d380, I f=
igure
out this ext[23] relatively grave pb. Effectively during this test loop:
# while true ; do nice -n -3 tar -xspf linux-2.6.11-rc3-pa3.tar ; nice -n=
 -3 rm
-rf linux-2.6.11-rc3-pa3 ; date ; done

after about 30 iteration, I got a fs' corruption:
EXT3-fs error (device sda10): ext3_readdir: bad entry in directory #84801=
:
rec_len % 4 !=3D 0 - offset=3D0, inode=3D175234
Aborting journal on device sda10.

ext3_abort called.

EXT3-fs error (device sda10): ext3_journal_start_sb: Detected aborted jou=
rnal

Remounting filesystem read-only

EXT3-fs error (device sda10): ext3_readdir: bad entry in directory #84801=
:
rec_len % 4 !=3D 0 - offset=3D0, inode=3D1752397164, rec_len=3D24
EXT3-fs error (device sda10): ext3_readdir: bad entry in directory #84801=
:
rec_len % 4 !=3D 0 - offset=3D0, inode=3D1752397164, rec_len=3D24
[snip]

and during fsck I noticed:
__journal_remove_journal_head: freeing b_committed_data

Pass 2: Checking directory structure
Directory inode 84801, block 0, offset 0: directory corrupted
Salvage? yes

Missing '.' in directory inode 84801.
Fix? yes

Setting filetype for entry '.' in ??? (84801) to 2.
Missing '..' in directory inode 84801.
Fix? yes

[snip]

As the first time it was with a smp kernel, I re-test with up kernels onl=
y.

This pb occured with different (up) kernels (2.6.17-rc6, 2.6.14, 2.6.17 a=
nd
even with 2.6.8.1) on different fs located on different disk and differen=
t
hba, and finaly on the 2 different cpu?

That said I also get a fs corruption during a simple apt-get dist-upgrade=
:
(sdb6 being /var)
EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in data=
zone -
block =3D 745764206, count =3D 1
Aborting journal on device sdb6.
ext3_abort called.
EXT3-fs error (device sdb6): ext3_journal_start_sb: Detected aborted jour=
nal
Remounting filesystem read-only
EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in data=
zone -
block =3D 1869488138, count =3D 1
EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in data=
zone -
block =3D 1953459744, count =3D 1
[snip]
EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in data=
zone -
block =3D 2003788910, count =3D 1
EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in data=
zone -
block =3D 1851878701, count =3D 1
EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in data=
zone -
block =3D 1919248225, count =3D 1<3>BUG: soft lockup det
ected on CPU#0!
Backtrace:
 [<1013222c>] update_process_times+0x34/0x80
 [<1010748c>] timer_interrupt+0x9c/0x134
 [<10145f44>] handle_IRQ_event+0x5c/0xa4
 [<10146004>] __do_IRQ+0x78/0x18c
 [<10107bc4>] do_cpu_irq_mask+0x6c/0xc8
 [<1010a068>] intr_return+0x0/0xc


EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in data=
zone -
block =3D 1632635402, count =3D 1
EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in data=
zone -
block =3D 1734437731, count =3D 1
[snip]
EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in data=
zone -
block =3D 1313423904, count =3D 1
EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in data=
zone -
block =3D 171515972, count =3D 1
EXT3-fs error (device sdb6) in ext3_reserve_inode_write: Journal has abor=
ted
EXT3-fs error (device sdb6) in ext3_truncate: Journal has aborted
EXT3-fs error (device sdb6) in ext3_reserve_inode_write: Journal has abor=
ted
EXT3-fs error (device sdb6) in ext3_orphan_del: Journal has aborted
EXT3-fs error (device sdb6) in ext3_reserve_inode_write: Journal has abor=
ted
__journal_remove_journal_head: freeing b_committed_data

It's the only system of this model on which I can reproduce but also I ca=
n
test (and as I am not hp, I don't have passwd diagnostic cd to test hw ;-=
( ),
so it's very hard to me if it's a driver pb (e.g. ncr hba) or a hw pb?

Any idea, advises are welcome.

Thanks in advance,
    Joel=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous de=
venez aujourd'hui Scarlet One grace a un client existant de Scarlet, vous=
 recevez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite su=
r http://www.clubscarlet.be

_______________________________________________
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James Bottomley wrote:
> On Wed, 2006-06-21 at 16:25 -0500, James Bottomley wrote:
> 
>>One of the current disadvantages parisc has is that we have to walk the
>>inode mapping list to do a flush_dcache_page(), which means we get
>>entangled in locking.  The reason we do this is because a VIPT cache
>>can't be flushed without a mapping, so we have to find one to use
>>
>>The intent of this patch is to instead flush through the tmpalias space
>>on the correct congruence boundary which would dispense with the need
>>for finding a mapping at all.  However, in the current incarnation we
>>still walk the mappings to check that all the usermappings are, indeed,
>>on the correct congruence boundary.  Unfortunately, as you'll see if you
>>try it out, not all are ... which is a bit of a problem.
> 
> 
> This patch is current and tested against 2.6.17-pa4.  It might eat your
> data but I'm reasonably assured it won't kill kittens.
> 
> James
> 
Thanks a lot.

Just met a small compile pb:

gcc -Wp,-MD,arch/parisc/kernel/.entry.o.d  -nostdinc -isystem /usr/lib/gcc/hppa-linux-gnu/4.0.4/include -D__KERNEL__ -Iinclude 
-Iinclude2 -I/usr/src/linux-2.6.17-pa4/include -include include/linux/autoconf.h -D__ASSEMBLY__ -traditional  -c -o 
arch/parisc/kernel/entry.o /usr/src/linux-2.6.17-pa4/arch/parisc/kernel/entry.S
/usr/src/linux-2.6.17-pa4/arch/parisc/kernel/entry.S: Assembler messages:
/usr/src/linux-2.6.17-pa4/arch/parisc/kernel/entry.S:1369: Error: Unknown opcode: `mstp'
/usr/src/linux-2.6.17-pa4/arch/parisc/kernel/entry.S:1630: Error: Unknown opcode: `mstp'
/usr/src/linux-2.6.17-pa4/arch/parisc/kernel/entry.S:1653: Error: symbol `dtlb_check_alias_20' is already defined
make[2]: *** [arch/parisc/kernel/entry.o] Error 1

effectively mstp doesn't exist but well mtsp?

For the second error it cames from this hunck:
@@ -1617,6 +1645,14 @@

  	f_extend	pte,t0	

+	iitlbt          pte,prot
+
+	rfir
+	nop
+	
+dtlb_check_alias_20:
+	do_alias	spc,t0,t1,va,pte,prot,itlb_fault
+	
  	iitlbt          pte,prot

  	rfir

Shouldn't it be here 'itlb_check_alias_20:'?

My 2pence diff looks like:
--- arch/parisc/kernel/entry.S.Orig     2006-06-24 22:35:19.000000000 +0200
+++ arch/parisc/kernel/entry.S  2006-06-24 22:55:49.000000000 +0200
@@ -1366,7 +1366,7 @@
         idtlba          pte,(%sr1,va)
         idtlbp          prot,(%sr1,va)

-       mstp            t0,%sr1         /* Restore sr1 */
+       mtsp            t0,%sr1         /* Restore sr1 */

         rfir
         nop
@@ -1627,7 +1627,7 @@
         iitlba          pte,(%sr1,va)
         iitlbp          prot,(%sr1,va)

-       mstp            t0,%sr1         /* Restore sr1 */
+       mtsp            t0,%sr1         /* Restore sr1 */

         rfir
         nop
@@ -1650,7 +1650,7 @@
         rfir
         nop

-dtlb_check_alias_20:
+itlb_check_alias_20:
         do_alias        spc,t0,t1,va,pte,prot,itlb_fault

         iitlbt          pte,prot

Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:23760



Joel Soete wrote:
> 
> 
> James Bottomley wrote:
> 
>> On Wed, 2006-06-21 at 16:25 -0500, James Bottomley wrote:
>>
>>> One of the current disadvantages parisc has is that we have to walk the
>>> inode mapping list to do a flush_dcache_page(), which means we get
>>> entangled in locking.  The reason we do this is because a VIPT cache
>>> can't be flushed without a mapping, so we have to find one to use
>>>
>>> The intent of this patch is to instead flush through the tmpalias space
>>> on the correct congruence boundary which would dispense with the need
>>> for finding a mapping at all.  However, in the current incarnation we
>>> still walk the mappings to check that all the usermappings are, indeed,
>>> on the correct congruence boundary.  Unfortunately, as you'll see if you
>>> try it out, not all are ... which is a bit of a problem.
>>
>>
>>
>> This patch is current and tested against 2.6.17-pa4.  It might eat your
>> data but I'm reasonably assured it won't kill kittens.
>>
>> James
>>
> Thanks a lot.
> 
> Just met a small compile pb:
> 
> gcc -Wp,-MD,arch/parisc/kernel/.entry.o.d  -nostdinc -isystem 
> /usr/lib/gcc/hppa-linux-gnu/4.0.4/include -D__KERNEL__ -Iinclude 
> -Iinclude2 -I/usr/src/linux-2.6.17-pa4/include -include 
> include/linux/autoconf.h -D__ASSEMBLY__ -traditional  -c -o 
> arch/parisc/kernel/entry.o 
> /usr/src/linux-2.6.17-pa4/arch/parisc/kernel/entry.S
> /usr/src/linux-2.6.17-pa4/arch/parisc/kernel/entry.S: Assembler messages:
> /usr/src/linux-2.6.17-pa4/arch/parisc/kernel/entry.S:1369: Error: 
> Unknown opcode: `mstp'
> /usr/src/linux-2.6.17-pa4/arch/parisc/kernel/entry.S:1630: Error: 
> Unknown opcode: `mstp'
> /usr/src/linux-2.6.17-pa4/arch/parisc/kernel/entry.S:1653: Error: symbol 
> `dtlb_check_alias_20' is already defined
> make[2]: *** [arch/parisc/kernel/entry.o] Error 1
> 
> effectively mstp doesn't exist but well mtsp?
> 
> For the second error it cames from this hunck:
> @@ -1617,6 +1645,14 @@
> 
>      f_extend    pte,t0   
> 
> +    iitlbt          pte,prot
> +
> +    rfir
> +    nop
> +   
> +dtlb_check_alias_20:
> +    do_alias    spc,t0,t1,va,pte,prot,itlb_fault
> +   
>      iitlbt          pte,prot
> 
>      rfir
> 
> Shouldn't it be here 'itlb_check_alias_20:'?
> 
> My 2pence diff looks like:
> --- arch/parisc/kernel/entry.S.Orig     2006-06-24 22:35:19.000000000 +0200
> +++ arch/parisc/kernel/entry.S  2006-06-24 22:55:49.000000000 +0200
> @@ -1366,7 +1366,7 @@
>         idtlba          pte,(%sr1,va)
>         idtlbp          prot,(%sr1,va)
> 
> -       mstp            t0,%sr1         /* Restore sr1 */
> +       mtsp            t0,%sr1         /* Restore sr1 */
> 
>         rfir
>         nop
> @@ -1627,7 +1627,7 @@
>         iitlba          pte,(%sr1,va)
>         iitlbp          prot,(%sr1,va)
> 
> -       mstp            t0,%sr1         /* Restore sr1 */
> +       mtsp            t0,%sr1         /* Restore sr1 */
> 
>         rfir
>         nop
> @@ -1650,7 +1650,7 @@
>         rfir
>         nop
> 
> -dtlb_check_alias_20:
> +itlb_check_alias_20:
>         do_alias        spc,t0,t1,va,pte,prot,itlb_fault
> 
>         iitlbt          pte,prot
> 
Just more in short:

No more pb to build but failed to boot (d380 up 32bit kernel 2.6.17-pa5 + patch)?

EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 340k freed
Backtrace:
  [<10157788>] __handle_mm_fault+0x488/0x95c
  [<1010502c>] do_page_fault+0x258/0x2fc
  [<10107154>] handle_interruption+0x25c/0x608
  [<1010a080>] intr_check_sig+0x0/0xc


Kernel Fault: Code=26 regs=106e4340 (Addr=0f23c000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  0004ff0f 00000040 10157788 10000000
r04-07  1049e000 104a21e0 10447810 4023c06c
r08-11  1046c804 000001e0 104b3de0 104a73e4
r12-15  104cc3c0 fb1fb054 1014075c 1013e308
r16-19  106e1b58 103fa810 00000002 0000000f
r20-23  00000000 00000000 00000001 00000020
r24-27  00000280 4023c06c 000093c0 103d8010
r28-31  0f23c000 106e1b58 106e4340 4023b180
sr00-03  00000001 00000000 00000000 00000001
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10105eec 10105ef0
  IIR: 0f801280    ISR: 00000000  IOR: 0f23c000
  CPU:        0   CR30: 106e4000 CR31: 10464000
  ORIG_R28: fffffffe
  IAOQ[0]: __clear_user_page_asm+0x20/0x70
  IAOQ[1]: __clear_user_page_asm+0x24/0x70
  RP(r2): __handle_mm_fault+0x488/0x95c
Kernel panic - not syncing: Kernel Fault
  <0>Rebooting in 30 seconds..

Sorry no time enough to analyse it in more details ;<(

Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:23761

On Sat, 2006-06-24 at 20:36 +0000, Joel Soete wrote:
> Just met a small compile pb:

Perhaps I should add that it's only been tested on 64 bit (both SMP and
UP)

James


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Xref: news.gmane.org gmane.linux.ports.parisc:23762

The following changes since commit f36f44de721db44b4c2944133c3c5c2e06f633f0:
  Linus Torvalds:
        Fix NFS2 compile error

are found in the git repository at:

  master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git

Carlos O'Donell:
      [PARISC] Use FIXUP_BRANCH_CLOBBER to asm clobber list
      [PARISC] Remove unconditional #define PIC in syscall macros

Grant Grundler:
      [PARISC] Fix gcc 4.1 warnings in sba_iommu.c

James Bottomley:
      [PARISC] Fix PCREL22F relocation problem for most modules
      [PARISC] Fix do_gettimeofday() hang

Kyle McMartin:
      [PARISC] Ensure all ldcw uses are ldcw,co on pa2.0
      [PARISC] Whitespace clean up in asm/pgtable.h
      [PARISC] Add asm/mckinley.h bus header
      [PARISC] Test ioc_needs_fdc variable instead of open coding
      [PARISC] Remove dead function pc_in_user_space
      [PARISC] Use MFIA in current_text_addr on pa2.0 processors
      [PARISC] Add is_compat_task() helper
      [PARISC] Remove unused macro fixup_branch in syscall.S
      [PARISC] Match show_cache_info with reality
      [PARISC] Ensure Space ID hashing is turned off
      [PARISC] OS_ID_LINUX == 0x0006
      [PARISC] Add os_id_to_string helper
      [PARISC] Refactor show_regs in traps.c

Thibaut Varene:
      [PARISC] PDC_CHASSIS is implemented on all machines
      [PARISC] Work around machines which do not support chassis warnings
      [PARISC] pdc_stable version 0.30
      [PARISC] Reduce data footprint in pdc_stable.c
      [PARISC] Update Thibaut Varene's CREDITS entry

 CREDITS                          |    4 -
 arch/parisc/kernel/cache.c       |   28 +++--
 arch/parisc/kernel/entry.S       |    6 +
 arch/parisc/kernel/firmware.c    |   46 +++++++-
 arch/parisc/kernel/module.c      |   63 +++++++++--
 arch/parisc/kernel/pdc_chassis.c |  109 ++++++++++++++-----
 arch/parisc/kernel/ptrace.c      |    8 +
 arch/parisc/kernel/real2.S       |    9 --
 arch/parisc/kernel/setup.c       |    5 +
 arch/parisc/kernel/signal.c      |   20 ++-
 arch/parisc/kernel/syscall.S     |   14 --
 arch/parisc/kernel/time.c        |   18 +++
 arch/parisc/kernel/traps.c       |   84 +++++++-------
 arch/parisc/kernel/unaligned.c   |   18 ++-
 drivers/parisc/Kconfig           |   33 ++++--
 drivers/parisc/pdc_stable.c      |  223 ++++++++++++++++++++++++++++++++++----
 drivers/parisc/sba_iommu.c       |   22 ++--
 include/asm-parisc/assembly.h    |    2 
 include/asm-parisc/compat.h      |   11 ++
 include/asm-parisc/mckinley.h    |    9 ++
 include/asm-parisc/pdc.h         |   22 +++-
 include/asm-parisc/pgtable.h     |    8 +
 include/asm-parisc/processor.h   |   14 +-
 include/asm-parisc/system.h      |   26 ++--
 include/asm-parisc/uaccess.h     |    9 +-
 include/asm-parisc/unistd.h      |    5 -
 26 files changed, 592 insertions(+), 224 deletions(-)
 create mode 100644 include/asm-parisc/mckinley.h
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From: Kyle McMartin <kyle@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH 12/23] [PARISC] pdc_stable version 0.30
Date: Sun, 25 Jun 2006 19:34:40 -0400
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Cc: Thibaut Varene <varenet@parisc-linux.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:23763

From: Thibaut Varene <varenet@parisc-linux.org>

pdc_stable v0.30:

This patch introduces 3 more files to the /sys/firmware/stable tree:
- diagnostic, which contains a cryptic hex string
- osdep1, a 16 bytes os-dependent storage area always available
- osdep2, another os-dependent storage area which existence/size depends
on hversion.

This patch also adds code to setup the "Linux" signature in stable
storage. That is to say that starting with this patch, the kernel will
now sign its OSID (0x0006, thx LaMont) in Stable Storage upon boot,
whether pdc_stable is enabled or not.

Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

 arch/parisc/kernel/setup.c  |    5 +
 drivers/parisc/pdc_stable.c |  219 ++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 210 insertions(+), 14 deletions(-)

a77039bc889939409af9726760e9b1b3fe77f6fb
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 4a36ec3..8471486 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -303,6 +303,8 @@ extern void eisa_init(void);
 
 static int __init parisc_init(void)
 {
+	u32 osid = (0x0006 << 16);
+
 	parisc_proc_mkdir();
 	parisc_init_resources();
 	do_device_inventory();                  /* probe for hardware */
@@ -311,6 +313,9 @@ static int __init parisc_init(void)
 	
 	/* set up a new led state on systems shipped LED State panel */
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BSTART);
+
+	/* tell PDC we're Linux. Nevermind failure. */
+	pdc_stable_write(0x40, &osid, sizeof(osid));
 	
 	processor_init();
 	printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index bbeabe3..4b991d5 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -28,8 +28,15 @@
  *    following code can deal with just 96 bytes of Stable Storage, and all
  *    sizes between 96 and 192 bytes (provided they are multiple of struct
  *    device_path size, eg: 128, 160 and 192) to provide full information.
- *    The code makes no use of data above 192 bytes. One last word: there's one
- *    path we can always count on: the primary path.
+ *    One last word: there's one path we can always count on: the primary path.
+ *    Anything above 224 bytes is used for 'osdep2' OS-dependent storage area.
+ *
+ *    The first OS-dependent area should always be available. Obviously, this is
+ *    not true for the other one. Also bear in mind that reading/writing from/to
+ *    osdep2 is much more expensive than from/to osdep1.
+ *    NOTE: We do not handle the 2 bytes OS-dep area at 0x5D, nor the first
+ *    2 bytes of storage available right after OSID. That's a total of 4 bytes
+ *    sacrificed: -ETOOLAZY :P
  *
  *    The current policy wrt file permissions is:
  *	- write: root only
@@ -64,15 +71,18 @@ #include <asm/page.h>
 #include <asm/uaccess.h>
 #include <asm/hardware.h>
 
-#define PDCS_VERSION	"0.22"
+#define PDCS_VERSION	"0.30"
 #define PDCS_PREFIX	"PDC Stable Storage"
 
 #define PDCS_ADDR_PPRI	0x00
 #define PDCS_ADDR_OSID	0x40
+#define PDCS_ADDR_OSD1	0x48
+#define PDCS_ADDR_DIAG	0x58
 #define PDCS_ADDR_FSIZ	0x5C
 #define PDCS_ADDR_PCON	0x60
 #define PDCS_ADDR_PALT	0x80
 #define PDCS_ADDR_PKBD	0xA0
+#define PDCS_ADDR_OSD2	0xE0
 
 MODULE_AUTHOR("Thibaut VARENE <varenet@parisc-linux.org>");
 MODULE_DESCRIPTION("sysfs interface to HP PDC Stable Storage data");
@@ -82,6 +92,9 @@ MODULE_VERSION(PDCS_VERSION);
 /* holds Stable Storage size. Initialized once and for all, no lock needed */
 static unsigned long pdcs_size __read_mostly;
 
+/* holds OS ID. Initialized once and for all, hopefully to 0x0006 */
+static u16 pdcs_osid __read_mostly;
+
 /* This struct defines what we need to deal with a parisc pdc path entry */
 struct pdcspath_entry {
 	rwlock_t rw_lock;		/* to protect path entry access */
@@ -609,27 +622,74 @@ static ssize_t
 pdcs_osid_read(struct subsystem *entry, char *buf)
 {
 	char *out = buf;
-	__u32 result;
 	char *tmpstr = NULL;
 
 	if (!entry || !buf)
 		return -EINVAL;
 
-	/* get OSID */
-	if (pdc_stable_read(PDCS_ADDR_OSID, &result, sizeof(result)) != PDC_OK)
-		return -EIO;
-
-	/* the actual result is 16 bits away */
-	switch (result >> 16) {
+	switch (pdcs_osid) {
 		case 0x0000:	tmpstr = "No OS-dependent data"; break;
 		case 0x0001:	tmpstr = "HP-UX dependent data"; break;
 		case 0x0002:	tmpstr = "MPE-iX dependent data"; break;
 		case 0x0003:	tmpstr = "OSF dependent data"; break;
 		case 0x0004:	tmpstr = "HP-RT dependent data"; break;
 		case 0x0005:	tmpstr = "Novell Netware dependent data"; break;
+		case 0x0006:	tmpstr = "Linux dependent data"; break;
 		default:	tmpstr = "Unknown"; break;
 	}
-	out += sprintf(out, "%s (0x%.4x)\n", tmpstr, (result >> 16));
+	out += sprintf(out, "%s (0x%.4x)\n", tmpstr, pdcs_osid);
+
+	return out - buf;
+}
+
+/**
+ * pdcs_osdep1_read - Stable Storage OS-Dependent data area 1 output.
+ * @entry: An allocated and populated subsytem struct. We don't use it tho.
+ * @buf: The output buffer to write to.
+ *
+ * This can hold 16 bytes of OS-Dependent data.
+ */
+static ssize_t
+pdcs_osdep1_read(struct subsystem *entry, char *buf)
+{
+	char *out = buf;
+	u32 result[4];
+
+	if (!entry || !buf)
+		return -EINVAL;
+
+	if (pdc_stable_read(PDCS_ADDR_OSD1, &result, sizeof(result)) != PDC_OK)
+		return -EIO;
+
+	out += sprintf(out, "0x%.8x\n", result[0]);
+	out += sprintf(out, "0x%.8x\n", result[1]);
+	out += sprintf(out, "0x%.8x\n", result[2]);
+	out += sprintf(out, "0x%.8x\n", result[3]);
+
+	return out - buf;
+}
+
+/**
+ * pdcs_diagnostic_read - Stable Storage Diagnostic register output.
+ * @entry: An allocated and populated subsytem struct. We don't use it tho.
+ * @buf: The output buffer to write to.
+ *
+ * I have NFC how to interpret the content of that register ;-).
+ */
+static ssize_t
+pdcs_diagnostic_read(struct subsystem *entry, char *buf)
+{
+	char *out = buf;
+	u32 result;
+
+	if (!entry || !buf)
+		return -EINVAL;
+
+	/* get diagnostic */
+	if (pdc_stable_read(PDCS_ADDR_DIAG, &result, sizeof(result)) != PDC_OK)
+		return -EIO;
+
+	out += sprintf(out, "0x%.4x\n", (result >> 16));
 
 	return out - buf;
 }
@@ -645,7 +705,7 @@ static ssize_t
 pdcs_fastsize_read(struct subsystem *entry, char *buf)
 {
 	char *out = buf;
-	__u32 result;
+	u32 result;
 
 	if (!entry || !buf)
 		return -EINVAL;
@@ -664,6 +724,39 @@ pdcs_fastsize_read(struct subsystem *ent
 }
 
 /**
+ * pdcs_osdep2_read - Stable Storage OS-Dependent data area 2 output.
+ * @entry: An allocated and populated subsytem struct. We don't use it tho.
+ * @buf: The output buffer to write to.
+ *
+ * This can hold pdcs_size - 224 bytes of OS-Dependent data, when available.
+ */
+static ssize_t
+pdcs_osdep2_read(struct subsystem *entry, char *buf)
+{
+	char *out = buf;
+	unsigned long size;
+	unsigned short i;
+	u32 result;
+
+	if (unlikely(pdcs_size <= 224))
+		return -ENODATA;
+
+	size = pdcs_size - 224;
+
+	if (!entry || !buf)
+		return -EINVAL;
+
+	for (i=0; i<size; i+=4) {
+		if (unlikely(pdc_stable_read(PDCS_ADDR_OSD2 + i, &result,
+					sizeof(result)) != PDC_OK))
+			return -EIO;
+		out += sprintf(out, "0x%.8x\n", result);
+	}
+
+	return out - buf;
+}
+
+/**
  * pdcs_auto_write - This function handles autoboot/search flag modifying.
  * @entry: An allocated and populated subsytem struct. We don't use it tho.
  * @buf: The input buffer to read from.
@@ -770,13 +863,100 @@ pdcs_autosearch_write(struct subsystem *
 	return pdcs_auto_write(entry, buf, count, PF_AUTOSEARCH);
 }
 
+/**
+ * pdcs_osdep1_write - Stable Storage OS-Dependent data area 1 input.
+ * @entry: An allocated and populated subsytem struct. We don't use it tho.
+ * @buf: The input buffer to read from.
+ * @count: The number of bytes to be read.
+ *
+ * This can store 16 bytes of OS-Dependent data. We use a byte-by-byte
+ * write approach. It's up to userspace to deal with it when constructing
+ * its input buffer.
+ */
+static ssize_t
+pdcs_osdep1_write(struct subsystem *entry, const char *buf, size_t count)
+{
+	u8 in[16];
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
+	if (!entry || !buf || !count)
+		return -EINVAL;
+
+	if (unlikely(pdcs_osid != 0x0006))
+		return -EPERM;
+
+	if (count > 16)
+		return -EMSGSIZE;
+
+	/* We'll use a local copy of buf */
+	memset(in, 0, 16);
+	memcpy(in, buf, count);
+
+	if (pdc_stable_write(PDCS_ADDR_OSD1, &in, sizeof(in)) != PDC_OK)
+		return -EIO;
+
+	return count;
+}
+
+/**
+ * pdcs_osdep2_write - Stable Storage OS-Dependent data area 2 input.
+ * @entry: An allocated and populated subsytem struct. We don't use it tho.
+ * @buf: The input buffer to read from.
+ * @count: The number of bytes to be read.
+ *
+ * This can store pdcs_size - 224 bytes of OS-Dependent data. We use a
+ * byte-by-byte write approach. It's up to userspace to deal with it when
+ * constructing its input buffer.
+ */
+static ssize_t
+pdcs_osdep2_write(struct subsystem *entry, const char *buf, size_t count)
+{
+	unsigned long size;
+	unsigned short i;
+	u8 in[4];
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
+	if (!entry || !buf || !count)
+		return -EINVAL;
+
+	if (unlikely(pdcs_size <= 224))
+		return -ENOSYS;
+
+	if (unlikely(pdcs_osid != 0x0006))
+		return -EPERM;
+
+	size = pdcs_size - 224;
+
+	if (count > size)
+		return -EMSGSIZE;
+
+	/* We'll use a local copy of buf */
+
+	for (i=0; i<count; i+=4) {
+		memset(in, 0, 4);
+		memcpy(in, buf+i, (count-i < 4) ? count-i : 4);
+		if (unlikely(pdc_stable_write(PDCS_ADDR_OSD2 + i, &in,
+					sizeof(in)) != PDC_OK))
+			return -EIO;
+	}
+
+	return count;
+}
+
 /* The remaining attributes. */
 static PDCS_ATTR(size, 0444, pdcs_size_read, NULL);
 static PDCS_ATTR(autoboot, 0644, pdcs_autoboot_read, pdcs_autoboot_write);
 static PDCS_ATTR(autosearch, 0644, pdcs_autosearch_read, pdcs_autosearch_write);
 static PDCS_ATTR(timer, 0444, pdcs_timer_read, NULL);
-static PDCS_ATTR(osid, 0400, pdcs_osid_read, NULL);
+static PDCS_ATTR(osid, 0444, pdcs_osid_read, NULL);
+static PDCS_ATTR(osdep1, 0600, pdcs_osdep1_read, pdcs_osdep1_write);
+static PDCS_ATTR(diagnostic, 0400, pdcs_diagnostic_read, NULL);
 static PDCS_ATTR(fastsize, 0400, pdcs_fastsize_read, NULL);
+static PDCS_ATTR(osdep2, 0600, pdcs_osdep2_read, pdcs_osdep2_write);
 
 static struct subsys_attribute *pdcs_subsys_attrs[] = {
 	&pdcs_attr_size,
@@ -784,7 +964,10 @@ static struct subsys_attribute *pdcs_sub
 	&pdcs_attr_autosearch,
 	&pdcs_attr_timer,
 	&pdcs_attr_osid,
+	&pdcs_attr_osdep1,
+	&pdcs_attr_diagnostic,
 	&pdcs_attr_fastsize,
+	&pdcs_attr_osdep2,
 	NULL,
 };
 
@@ -865,6 +1048,7 @@ pdc_stable_init(void)
 {
 	struct subsys_attribute *attr;
 	int i, rc = 0, error = 0;
+	u32 result;
 
 	/* find the size of the stable storage */
 	if (pdc_stable_get_size(&pdcs_size) != PDC_OK) 
@@ -876,6 +1060,13 @@ pdc_stable_init(void)
 
 	printk(KERN_INFO PDCS_PREFIX " facility v%s\n", PDCS_VERSION);
 
+	/* get OSID */
+	if (pdc_stable_read(PDCS_ADDR_OSID, &result, sizeof(result)) != PDC_OK)
+		return -EIO;
+
+	/* the actual result is 16 bits away */
+	pdcs_osid = (u16)(result >> 16);
+
 	/* For now we'll register the stable subsys within this driver */
 	if ((rc = firmware_register(&stable_subsys)))
 		goto fail_firmreg;
@@ -887,7 +1078,7 @@ pdc_stable_init(void)
 	
 	/* register the paths subsys as a subsystem of stable subsys */
 	kset_set_kset_s(&paths_subsys, stable_subsys);
-	if ((rc= subsystem_register(&paths_subsys)))
+	if ((rc = subsystem_register(&paths_subsys)))
 		goto fail_subsysreg;
 
 	/* now we create all "files" for the paths subsys */
-- 
1.3.3

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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: [parisc-linux] [PATCH 10/23] [PARISC] PDC_CHASSIS is implemented on
	all machines
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Xref: news.gmane.org gmane.linux.ports.parisc:23764

From: Thibaut Varene <varenet@parisc-linux.org>

This patch removes a limitation of the original code, so that CHASSIS
codes can be sent to all machines. On machines with a LCD panel, this
code displays "INI" during bootup, "RUN" when the system is booted and
running, "FLT" when a panic occurs, etc.

This part of the code can be enabled/disabled through CONFIG_PDC_CHASSIS

This patch also adds minimalistic support for Chassis warnings, through
a proc entry '/proc/chassis', which will reflect the warnings status (PSU
or fans failure when they happen, NVRAM battery level and temperature
thresholds overflows).

This part of the code can be enabled/disabled through CONFIG_PDC_CHASSIS_WARN

Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

 arch/parisc/kernel/firmware.c    |   22 +++++++++--
 arch/parisc/kernel/pdc_chassis.c |   73 ++++++++++++++++++++++++++++++++------
 drivers/parisc/Kconfig           |   33 ++++++++++++++---
 include/asm-parisc/pdc.h         |    1 +
 4 files changed, 107 insertions(+), 22 deletions(-)

10308768c98d32cf8606224ee01c92dc9ff57126
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 2dc06b8..0596f27 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -11,7 +11,7 @@
  * Copyright 1999 The Puffin Group, (Alex deVries, David Kennedy)
  * Copyright 2003 Grant Grundler <grundler parisc-linux org>
  * Copyright 2003,2004 Ryan Bradetich <rbrad@parisc-linux.org>
- * Copyright 2004 Thibaut VARENE <varenet@parisc-linux.org>
+ * Copyright 2004,2006 Thibaut VARENE <varenet@parisc-linux.org>
  *
  *    This program is free software; you can redistribute it and/or modify
  *    it under the terms of the GNU General Public License as published by
@@ -252,10 +252,8 @@ int pdc_pat_chassis_send_log(unsigned lo
 #endif
 
 /**
- * pdc_chassis_disp - Updates display
+ * pdc_chassis_disp - Updates chassis code
  * @retval: -1 on error, 0 on success
- *
- * Works on old PDC only (E class, others?)
  */
 int pdc_chassis_disp(unsigned long disp)
 {
@@ -269,6 +267,22 @@ int pdc_chassis_disp(unsigned long disp)
 }
 
 /**
+ * pdc_chassis_warn - Fetches chassis warnings
+ * @retval: -1 on error, 0 on success
+ */
+int pdc_chassis_warn(unsigned long *warn)
+{
+	int retval = 0;
+
+	spin_lock_irq(&pdc_lock);
+	retval = mem_pdc_call(PDC_CHASSIS, PDC_CHASSIS_WARN, __pa(pdc_result));
+	*warn = pdc_result[0];
+	spin_unlock_irq(&pdc_lock);
+
+	return retval;
+}
+
+/**
  * pdc_coproc_cfg - To identify coprocessors attached to the processor.
  * @pdc_coproc_info: Return buffer address.
  *
diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c
index a45e2e2..51e86c0 100644
--- a/arch/parisc/kernel/pdc_chassis.c
+++ b/arch/parisc/kernel/pdc_chassis.c
@@ -1,8 +1,8 @@
 /* 
- *    interfaces to log Chassis Codes via PDC (firmware)
+ *    interfaces to Chassis Codes via PDC (firmware)
  *
  *    Copyright (C) 2002 Laurent Canet <canetl@esiee.fr>
- *    Copyright (C) 2002-2004 Thibaut VARENE <varenet@parisc-linux.org>
+ *    Copyright (C) 2002-2006 Thibaut VARENE <varenet@parisc-linux.org>
  *
  *    This program is free software; you can redistribute it and/or modify
  *    it under the terms of the GNU General Public License, version 2, as
@@ -16,6 +16,9 @@
  *    You should have received a copy of the GNU General Public License
  *    along with this program; if not, write to the Free Software
  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *    TODO: poll chassis warns, trigger (configurable) machine shutdown when
+ *    		needed.
  */
 
 #undef PDC_CHASSIS_DEBUG
@@ -30,6 +33,7 @@ #include <linux/kernel.h>
 #include <linux/reboot.h>
 #include <linux/notifier.h>
 #include <linux/cache.h>
+#include <linux/proc_fs.h>
 
 #include <asm/pdc_chassis.h>
 #include <asm/processor.h>
@@ -38,7 +42,6 @@ #include <asm/pdcpat.h>
 
 
 #ifdef CONFIG_PDC_CHASSIS
-static int pdc_chassis_old __read_mostly = 0;	
 static unsigned int pdc_chassis_enabled __read_mostly = 1;
 
 
@@ -64,7 +67,7 @@ __setup("pdcchassis=", pdc_chassis_setup
  * Currently, only E class and A180 are known to work with this.
  * Inspired by Christoph Plattner
  */
-
+#if 0
 static void __init pdc_chassis_checkold(void)
 {
 	switch(CPU_HVERSION) {
@@ -73,7 +76,6 @@ static void __init pdc_chassis_checkold(
 		case 0x482:		/* E45 */
 		case 0x483:		/* E55 */
 		case 0x516:		/* A180 */
-			pdc_chassis_old = 1;
 			break;
 
 		default:
@@ -81,7 +83,7 @@ static void __init pdc_chassis_checkold(
 	}
 	DPRINTK(KERN_DEBUG "%s: pdc_chassis_checkold(); pdc_chassis_old = %d\n", __FILE__, pdc_chassis_old);
 }
-
+#endif
 
 /**
  * pdc_chassis_panic_event() - Called by the panic handler.
@@ -136,14 +138,13 @@ #ifdef CONFIG_PDC_CHASSIS
 		DPRINTK(KERN_DEBUG "%s: parisc_pdc_chassis_init()\n", __FILE__);
 
 		/* Let see if we have something to handle... */
-		/* Check for PDC_PAT or old LED Panel */
-		pdc_chassis_checkold();
+		/* Check for PDC_PAT */
 		if (is_pdc_pat()) {
 			printk(KERN_INFO "Enabling PDC_PAT chassis codes support.\n");
 			handle = 1;
 		}
-		else if (unlikely(pdc_chassis_old)) {
-			printk(KERN_INFO "Enabling old style chassis LED panel support.\n");
+		else {
+			printk(KERN_INFO "Enabling regular chassis codes support.\n");
 			handle = 1;
 		}
 
@@ -215,9 +216,12 @@ #ifdef CONFIG_64BIT
 			}
 		} else retval = -1;
 #else
-		if (unlikely(pdc_chassis_old)) {
+		if (1) {
 			switch (message) {
 				case PDC_CHASSIS_DIRECT_BSTART:
+					retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_INIT));
+					break;
+
 				case PDC_CHASSIS_DIRECT_BCOMPLETE:
 					retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_RUN));
 					break;
@@ -244,3 +248,50 @@ #endif /* CONFIG_64BIT */
 #endif /* CONFIG_PDC_CHASSIS */
 	return retval;
 }
+
+#ifdef CONFIG_PDC_CHASSIS_WARN
+#ifdef CONFIG_PROC_FS
+static int pdc_chassis_warn_pread(char *page, char **start, off_t off,
+		int count, int *eof, void *data)
+{
+	char *out = page;
+	int len, ret;
+	unsigned long warn;
+	u32 warnreg;
+
+	ret = pdc_chassis_warn(&warn);
+	if (ret != PDC_OK)
+		return -EIO;
+
+	warnreg = (warn & 0xFFFFFFFF);
+
+	if ((warnreg >> 24) & 0xFF)
+		out += sprintf(out, "Chassis component failure! (eg fan or PSU): 0x%.2x\n", ((warnreg >> 24) & 0xFF));
+
+	out += sprintf(out, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
+	out += sprintf(out, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
+	out += sprintf(out, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
+
+	len = out - page - off;
+	if (len < count) {
+		*eof = 1;
+		if (len <= 0) return 0;
+	} else {
+		len = count;
+	}
+	*start = page + off;
+	return len;
+}
+
+static int __init pdc_chassis_create_procfs(void)
+{
+	printk(KERN_INFO "Enabling PDC chassis warnings support.\n");
+	create_proc_read_entry("chassis", 0400, NULL, pdc_chassis_warn_pread,
+				NULL);
+	return 0;
+}
+
+__initcall(pdc_chassis_create_procfs);
+
+#endif /* CONFIG_PROC_FS */
+#endif /* CONFIG_PDC_CHASSIS_WARN */
diff --git a/drivers/parisc/Kconfig b/drivers/parisc/Kconfig
index 3f5de86..1d3b84b 100644
--- a/drivers/parisc/Kconfig
+++ b/drivers/parisc/Kconfig
@@ -140,18 +140,37 @@ config CHASSIS_LCD_LED
 	  If unsure, say Y.
 
 config PDC_CHASSIS
-	bool "PDC chassis State Panel support"
+	bool "PDC chassis state codes support"
 	default y
 	help
-	  Say Y here if you want to enable support for the LED State front
-	  panel as found on E class, and support for the GSP Virtual Front
-	  Panel (LED State and message logging)  as found on high end
-	  servers such as A, L and N-class.
-	  
-	  This has nothing to do with Chassis LCD and LED support.
+	  Say Y here if you want to enable support for Chassis codes.
+	  That includes support for LED State front panel as found on E
+	  class, and support for the GSP Virtual Front Panel (LED State and
+	  message logging)  as found on high end servers such as A, L and
+	  N-class.
+	  This driver will also display progress messages on LCD display,
+	  such as "INI", "RUN" and "FLT", and might thus clobber messages
+	  shown by the LED/LCD driver.
+	  This driver updates the state panel (LED and/or LCD) upon system
+	  state change (eg: boot, shutdown or panic).
 	  
 	  If unsure, say Y.
 
+
+config PDC_CHASSIS_WARN
+	bool "PDC chassis warnings support"
+	depends on PROC_FS
+	default y
+	help
+	  Say Y here if you want to enable support for Chassis warnings.
+	  This will add a proc entry '/proc/chassis' giving some information
+	  about the overall health state of the system.
+	  This includes NVRAM battery level, overtemp or failures such as
+	  fans or power units.
+
+	  If unsure, say Y.
+
+
 config PDC_STABLE
 	tristate "PDC Stable Storage support"
 	depends on SYSFS
diff --git a/include/asm-parisc/pdc.h b/include/asm-parisc/pdc.h
index 08364f9..7d8a71a 100644
--- a/include/asm-parisc/pdc.h
+++ b/include/asm-parisc/pdc.h
@@ -719,6 +719,7 @@ void setup_pdc(void);		/* in inventory.c
 int pdc_add_valid(unsigned long address);
 int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len);
 int pdc_chassis_disp(unsigned long disp);
+int pdc_chassis_warn(unsigned long *warn);
 int pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info);
 int pdc_iodc_read(unsigned long *actcnt, unsigned long hpa, unsigned int index,
 		  void *iodc_data, unsigned int iodc_data_size);
-- 
1.3.3

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Subject: [parisc-linux] [PATCH 16/23] [PARISC] Remove unused macro
	fixup_branch in syscall.S
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Xref: news.gmane.org gmane.linux.ports.parisc:23765

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

 arch/parisc/kernel/syscall.S |   12 ------------
 1 files changed, 0 insertions(+), 12 deletions(-)

9f6d09dc715952f5d953645d050a400ffa881af5
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index a028c99..9670a89 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -29,18 +29,6 @@ #else
 	.level		1.1
 #endif
 
-#ifndef CONFIG_64BIT
-	.macro fixup_branch,lbl
-	b	    \lbl
-	.endm
-#else
-	.macro fixup_branch,lbl
-	ldil	    L%\lbl, %r1
-	ldo	    R%\lbl(%r1), %r1
-	bv,n        %r0(%r1)
-	.endm
-#endif

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Subject: [parisc-linux] [PATCH 13/23] [PARISC] Reduce data footprint in
	pdc_stable.c
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From: Thibaut Varene <varenet@parisc-linux.org>

No code change - reduce data footprint.

Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

 drivers/parisc/pdc_stable.c |   16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)

e2a55d47bfe9d186d8060194028a5f63114108a9
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 4b991d5..a109421 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -628,16 +628,16 @@ pdcs_osid_read(struct subsystem *entry, 
 		return -EINVAL;
 
 	switch (pdcs_osid) {
-		case 0x0000:	tmpstr = "No OS-dependent data"; break;
-		case 0x0001:	tmpstr = "HP-UX dependent data"; break;
-		case 0x0002:	tmpstr = "MPE-iX dependent data"; break;
-		case 0x0003:	tmpstr = "OSF dependent data"; break;
-		case 0x0004:	tmpstr = "HP-RT dependent data"; break;
-		case 0x0005:	tmpstr = "Novell Netware dependent data"; break;
-		case 0x0006:	tmpstr = "Linux dependent data"; break;
+		case 0x0000:	tmpstr = "No OS"; break;
+		case 0x0001:	tmpstr = "HP-UX"; break;
+		case 0x0002:	tmpstr = "MPE-iX"; break;
+		case 0x0003:	tmpstr = "OSF"; break;
+		case 0x0004:	tmpstr = "HP-RT"; break;
+		case 0x0005:	tmpstr = "Novell Netware"; break;
+		case 0x0006:	tmpstr = "Linux"; break;
 		default:	tmpstr = "Unknown"; break;
 	}
-	out += sprintf(out, "%s (0x%.4x)\n", tmpstr, pdcs_osid);
+	out += sprintf(out, "%s dependent data (0x%.4x)\n", tmpstr, pdcs_osid);
 
 	return out - buf;
 }
-- 
1.3.3

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Subject: [parisc-linux] [PATCH 15/23] [PARISC] Add is_compat_task() helper
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Xref: news.gmane.org gmane.linux.ports.parisc:23767

... And convert signal.c and ptrace.c to use it instead of open
coded equivalents.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

 arch/parisc/kernel/ptrace.c |    8 ++++----
 arch/parisc/kernel/signal.c |   20 ++++++++++----------
 include/asm-parisc/compat.h |   11 +++++++++++
 3 files changed, 25 insertions(+), 14 deletions(-)

d504011f391cc883c080decc1ba70d70b8a4a6ba
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 413292f..3f28de9 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -91,7 +91,7 @@ #endif
 		int copied;
 
 #ifdef __LP64__
-		if (personality(child->personality) == PER_LINUX32) {
+		if (__is_compat_task(child)) {
 			unsigned int tmp;
 
 			addr &= 0xffffffffL;
@@ -123,7 +123,7 @@ #endif
 	case PTRACE_POKEDATA:
 		ret = 0;
 #ifdef __LP64__
-		if (personality(child->personality) == PER_LINUX32) {
+		if (__is_compat_task(child)) {
 			unsigned int tmp = (unsigned int)data;
 			DBG("sys_ptrace(POKE%s, %d, %lx, %lx)\n",
 				request == PTRACE_POKETEXT ? "TEXT" : "DATA",
@@ -146,7 +146,7 @@ #endif
 	case PTRACE_PEEKUSR: {
 		ret = -EIO;
 #ifdef __LP64__
-		if (personality(child->personality) == PER_LINUX32) {
+		if (__is_compat_task(child)) {
 			unsigned int tmp;
 
 			if (addr & (sizeof(int)-1))
@@ -205,7 +205,7 @@ #endif
 			goto out_tsk;
 		}
 #ifdef __LP64__
-		if (personality(child->personality) == PER_LINUX32) {
+		if (__is_compat_task(child)) {
 			if (addr & (sizeof(int)-1))
 				goto out_tsk;
 			if ((addr = translate_usr_offset(addr)) < 0)
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index cc38edf..bb83880 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -76,7 +76,7 @@ sys_rt_sigsuspend(sigset_t __user *unews
 #ifdef __LP64__
 	compat_sigset_t newset32;
 
-	if(personality(current->personality) == PER_LINUX32){
+	if (is_compat_task()) {
 		/* XXX: Don't preclude handling different sized sigset_t's.  */
 		if (sigsetsize != sizeof(compat_sigset_t))
 			return -EINVAL;
@@ -153,7 +153,7 @@ #ifdef __LP64__
 	compat_sigset_t compat_set;
 	struct compat_rt_sigframe __user * compat_frame;
 	
-	if(personality(current->personality) == PER_LINUX32)
+	if (is_compat_task())
 		sigframe_size = PARISC_RT_SIGFRAME_SIZE32;
 #endif
 
@@ -166,7 +166,7 @@ #endif
 #ifdef __LP64__
 	compat_frame = (struct compat_rt_sigframe __user *)frame;
 	
-	if(personality(current->personality) == PER_LINUX32){
+	if (is_compat_task()) {
 		DBG(2,"sys_rt_sigreturn: ELF32 process.\n");
 		if (__copy_from_user(&compat_set, &compat_frame->uc.uc_sigmask, sizeof(compat_set)))
 			goto give_sigsegv;
@@ -186,7 +186,7 @@ #endif
 
 	/* Good thing we saved the old gr[30], eh? */
 #ifdef __LP64__
-	if(personality(current->personality) == PER_LINUX32){
+	if (is_compat_task()) {
 		DBG(1,"sys_rt_sigreturn: compat_frame->uc.uc_mcontext 0x%p\n",
 				&compat_frame->uc.uc_mcontext);
 // FIXME: Load upper half from register file
@@ -315,7 +315,7 @@ #ifdef __LP64__
 
 	compat_frame = (struct compat_rt_sigframe __user *)frame;
 	
-	if(personality(current->personality) == PER_LINUX32) {
+	if (is_compat_task()) {
 		DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &compat_frame->info);
 		err |= copy_siginfo_to_user32(&compat_frame->info, info);
 		DBG(1,"SETUP_RT_FRAME: 1\n");
@@ -392,7 +392,7 @@ #endif
 	haddr = A(ka->sa.sa_handler);
 	/* The sa_handler may be a pointer to a function descriptor */
 #ifdef __LP64__
-	if(personality(current->personality) == PER_LINUX32) {
+	if (is_compat_task()) {
 #endif
 		if (haddr & PA_PLABEL_FDESC) {
 			Elf32_Fdesc fdesc;
@@ -427,19 +427,19 @@ #endif
 	 */
 	sigframe_size = PARISC_RT_SIGFRAME_SIZE;
 #ifdef __LP64__
-	if(personality(current->personality) == PER_LINUX32)
+	if (is_compat_task())
 		sigframe_size = PARISC_RT_SIGFRAME_SIZE32;
 #endif
 	if (in_syscall) {
 		regs->gr[31] = haddr;
 #ifdef __LP64__
-		if(personality(current->personality) == PER_LINUX)
+		if (personality(current->personality) == PER_LINUX)
 			sigframe_size |= 1;
 #endif
 	} else {
 		unsigned long psw = USER_PSW;
 #ifdef __LP64__
-		if(personality(current->personality) == PER_LINUX)
+		if (personality(current->personality) == PER_LINUX)
 			psw |= PSW_W;
 #endif
 
@@ -464,7 +464,7 @@ #endif
 	regs->gr[26] = sig;               /* signal number */
 	
 #ifdef __LP64__
-	if(personality(current->personality) == PER_LINUX32){
+	if (is_compat_task()) {
 		regs->gr[25] = A(&compat_frame->info); /* siginfo pointer */
 		regs->gr[24] = A(&compat_frame->uc);   /* ucontext pointer */
 	} else
diff --git a/include/asm-parisc/compat.h b/include/asm-parisc/compat.h
index 289624d..71b4eee 100644
--- a/include/asm-parisc/compat.h
+++ b/include/asm-parisc/compat.h
@@ -5,6 +5,7 @@ #define _ASM_PARISC_COMPAT_H
  */
 #include <linux/types.h>
 #include <linux/sched.h>
+#include <linux/personality.h>
 
 #define COMPAT_USER_HZ 100
 
@@ -149,4 +150,14 @@ static __inline__ void __user *compat_al
 	return (void __user *)regs->gr[30];
 }
 
+static inline int __is_compat_task(struct task_struct *t)
+{
+	return personality(t->personality) == PER_LINUX32;
+}
+
+static inline int is_compat_task(void)
+{
+	return __is_compat_task(current);
+}
+
 #endif /* _ASM_PARISC_COMPAT_H */
-- 
1.3.3

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Xref: news.gmane.org gmane.linux.ports.parisc:23768

We were assigned an OS_ID of 0x0006. Consistently use OS_ID_LINUX
instead of using the magic number. Also update the OS_ID_ defines in
asm/pdc.h to reflect this.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

 arch/parisc/kernel/firmware.c |    4 +++-
 arch/parisc/kernel/setup.c    |    2 +-
 drivers/parisc/pdc_stable.c   |    4 ++--
 include/asm-parisc/pdc.h      |    3 +--
 4 files changed, 7 insertions(+), 6 deletions(-)

889a598b271a7ef14c2c7c83b26a82ccf57d9ab9
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index c80c277..4398d2a 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -407,7 +407,9 @@ int pdc_model_info(struct pdc_model *mod
  * pdc_model_sysmodel - Get the system model name.
  * @name: A char array of at least 81 characters.
  *
- * Get system model name from PDC ROM (e.g. 9000/715 or 9000/778/B160L)
+ * Get system model name from PDC ROM (e.g. 9000/715 or 9000/778/B160L).
+ * Using OS_ID_HPUX will return the equivalent of the 'modelname' command
+ * on HP/UX.
  */
 int pdc_model_sysmodel(char *name)
 {
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 8471486..278f4b9 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -303,7 +303,7 @@ extern void eisa_init(void);
 
 static int __init parisc_init(void)
 {
-	u32 osid = (0x0006 << 16);
+	u32 osid = (OS_ID_LINUX << 16);
 
 	parisc_proc_mkdir();
 	parisc_init_resources();
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index a109421..97b3458 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -884,7 +884,7 @@ pdcs_osdep1_write(struct subsystem *entr
 	if (!entry || !buf || !count)
 		return -EINVAL;
 
-	if (unlikely(pdcs_osid != 0x0006))
+	if (unlikely(pdcs_osid != OS_ID_LINUX))
 		return -EPERM;
 
 	if (count > 16)
@@ -926,7 +926,7 @@ pdcs_osdep2_write(struct subsystem *entr
 	if (unlikely(pdcs_size <= 224))
 		return -ENOSYS;
 
-	if (unlikely(pdcs_osid != 0x0006))
+	if (unlikely(pdcs_osid != OS_ID_LINUX))
 		return -EPERM;
 
 	size = pdcs_size - 224;
diff --git a/include/asm-parisc/pdc.h b/include/asm-parisc/pdc.h
index 3d3446e..33bff61 100644
--- a/include/asm-parisc/pdc.h
+++ b/include/asm-parisc/pdc.h
@@ -278,12 +278,11 @@ #define PDC_LINK_USB_ENTRY_POINTS	1  /* 
 /* constants for OS (NVM...) */
 #define OS_ID_NONE		0	/* Undefined OS ID	*/
 #define OS_ID_HPUX		1	/* HP-UX OS		*/
-#define OS_ID_LINUX		OS_ID_HPUX /* just use the same value as hpux */
 #define OS_ID_MPEXL		2	/* MPE XL OS		*/
 #define OS_ID_OSF		3	/* OSF OS		*/
 #define OS_ID_HPRT		4	/* HP-RT OS		*/
 #define OS_ID_NOVEL		5	/* NOVELL OS		*/
-#define OS_ID_NT		6	/* NT OS		*/
+#define OS_ID_LINUX		6	/* Linux		*/
 
 
 /* constants for PDC_CHASSIS */
-- 
1.3.3

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Xref: news.gmane.org gmane.linux.ports.parisc:23769

show_cache_info and struct pdc_cache_cf were out of sync with
published documentation. Fix the reporting of cache associativity
and update the pdc_cache_cf bitfields to match documentation.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

 arch/parisc/kernel/cache.c |   18 ++++++++++--------
 include/asm-parisc/pdc.h   |    4 ++--
 2 files changed, 12 insertions(+), 10 deletions(-)

9e474ed388eb542bf0948aced376f787fb2e26b9
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index c057ad7..851519c 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -97,15 +97,17 @@ update_mmu_cache(struct vm_area_struct *
 void
 show_cache_info(struct seq_file *m)
 {
+	char buf[32];
+
 	seq_printf(m, "I-cache\t\t: %ld KB\n", 
 		cache_info.ic_size/1024 );
-	seq_printf(m, "D-cache\t\t: %ld KB (%s%s, %d-way associative)\n", 
+	if (cache_info.dc_loop == 1)
+		snprintf(buf, 32, "%lu-way associative", cache_info.dc_loop);
+	seq_printf(m, "D-cache\t\t: %ld KB (%s%s, %s)\n",
 		cache_info.dc_size/1024,
 		(cache_info.dc_conf.cc_wt ? "WT":"WB"),
 		(cache_info.dc_conf.cc_sh ? ", shared I/D":""),
-		(cache_info.dc_conf.cc_assoc)
-	);
-
+		((cache_info.dc_loop == 1) ? "direct mapped" : buf));
 	seq_printf(m, "ITLB entries\t: %ld\n" "DTLB entries\t: %ld%s\n",
 		cache_info.it_size,
 		cache_info.dt_size,
@@ -158,11 +160,11 @@ #if 0
 		cache_info.dc_conf.cc_block,
 		cache_info.dc_conf.cc_line,
 		cache_info.dc_conf.cc_shift);
-	printk("	wt %d sh %d cst %d assoc %d\n",
+	printk("	wt %d sh %d cst %d hv %d\n",
 		cache_info.dc_conf.cc_wt,
 		cache_info.dc_conf.cc_sh,
 		cache_info.dc_conf.cc_cst,
-		cache_info.dc_conf.cc_assoc);
+		cache_info.dc_conf.cc_hv);
 
 	printk("IC  base 0x%lx stride 0x%lx count 0x%lx loop 0x%lx\n",
 		cache_info.ic_base,
@@ -176,11 +178,11 @@ #if 0
 		cache_info.ic_conf.cc_block,
 		cache_info.ic_conf.cc_line,
 		cache_info.ic_conf.cc_shift);
-	printk("	wt %d sh %d cst %d assoc %d\n",
+	printk("	wt %d sh %d cst %d hv %d\n",
 		cache_info.ic_conf.cc_wt,
 		cache_info.ic_conf.cc_sh,
 		cache_info.ic_conf.cc_cst,
-		cache_info.ic_conf.cc_assoc);
+		cache_info.ic_conf.cc_hv);
 
 	printk("D-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
 		cache_info.dt_conf.tc_sh,
diff --git a/include/asm-parisc/pdc.h b/include/asm-parisc/pdc.h
index 7d8a71a..592f13b 100644
--- a/include/asm-parisc/pdc.h
+++ b/include/asm-parisc/pdc.h
@@ -352,8 +352,8 @@ #endif
 		cc_wt	: 1,	/* 0 = WT-Dcache, 1 = WB-Dcache */
 		cc_sh	: 2,	/* 0 = separate I/D-cache, else shared I/D-cache */
 		cc_cst  : 3,	/* 0 = incoherent D-cache, 1=coherent D-cache */
-		cc_pad1 : 5,	/* reserved */
-		cc_assoc: 8;	/* associativity of I/D-cache */
+		cc_pad1 : 10,	/* reserved */
+		cc_hv   : 3;	/* hversion dependent */
 };
 
 struct pdc_tlb_cf {		/* for PDC_CACHE (I/D-TLB's) */
-- 
1.3.3

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Xref: news.gmane.org gmane.linux.ports.parisc:23770

Add a helper to asm/pdc.h to translate OS_ID values to strings
and use it in the pdc_stable driver.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

 drivers/parisc/pdc_stable.c |   14 ++------------
 include/asm-parisc/pdc.h    |   13 +++++++++++++
 2 files changed, 15 insertions(+), 12 deletions(-)

484e05640cb33480c6cbd8c9f8e519a635424d1a
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 97b3458..ea1b7a6 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -622,22 +622,12 @@ static ssize_t
 pdcs_osid_read(struct subsystem *entry, char *buf)
 {
 	char *out = buf;
-	char *tmpstr = NULL;
 
 	if (!entry || !buf)
 		return -EINVAL;
 
-	switch (pdcs_osid) {
-		case 0x0000:	tmpstr = "No OS"; break;
-		case 0x0001:	tmpstr = "HP-UX"; break;
-		case 0x0002:	tmpstr = "MPE-iX"; break;
-		case 0x0003:	tmpstr = "OSF"; break;
-		case 0x0004:	tmpstr = "HP-RT"; break;
-		case 0x0005:	tmpstr = "Novell Netware"; break;
-		case 0x0006:	tmpstr = "Linux"; break;
-		default:	tmpstr = "Unknown"; break;
-	}
-	out += sprintf(out, "%s dependent data (0x%.4x)\n", tmpstr, pdcs_osid);
+	out += sprintf(out, "%s dependent data (0x%.4x)\n",
+		os_id_to_string(pdcs_osid), pdcs_osid);
 
 	return out - buf;
 }
diff --git a/include/asm-parisc/pdc.h b/include/asm-parisc/pdc.h
index 33bff61..7a21f10 100644
--- a/include/asm-parisc/pdc.h
+++ b/include/asm-parisc/pdc.h
@@ -284,6 +284,19 @@ #define OS_ID_HPRT		4	/* HP-RT OS		*/
 #define OS_ID_NOVEL		5	/* NOVELL OS		*/
 #define OS_ID_LINUX		6	/* Linux		*/
 
+static inline char * os_id_to_string(u16 os_id) {
+	switch(os_id) {
+	case OS_ID_NONE:	return "No OS";
+	case OS_ID_HPUX:	return "HP-UX";
+	case OS_ID_MPEXL:	return "MPE-iX";
+	case OS_ID_OSF:		return "OSF";
+	case OS_ID_HPRT:	return "HP-RT";
+	case OS_ID_NOVEL:	return "Novell Netware";
+	case OS_ID_LINUX:	return "Linux";
+	default:	return "Unknown";
+	}
+}
+
 
 /* constants for PDC_CHASSIS */
 #define OSTAT_OFF		0
-- 
1.3.3

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Xref: news.gmane.org gmane.linux.ports.parisc:23771

From: Carlos O'Donell <carlos@parisc-linux.org>

Signed-off-by: Carlos O'Donell <carlos@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

 include/asm-parisc/unistd.h |    5 -----
 1 files changed, 0 insertions(+), 5 deletions(-)

32d4e0d51cefbbc81da5ce2dd2d7fb7a585ed385
diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
index 12b8672..27bcfad 100644
--- a/include/asm-parisc/unistd.h
+++ b/include/asm-parisc/unistd.h
@@ -797,11 +797,6 @@ #ifndef __ASSEMBLY__
 
 #define SYS_ify(syscall_name)   __NR_##syscall_name
 
-/* Assume all syscalls are done from PIC code just to be
- * safe. The worst case scenario is that you lose a register
- * and save/restore r19 across the syscall. */
-#define PIC

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From: Kyle McMartin <kyle@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH 21/23] [PARISC] Refactor show_regs in traps.c
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Xref: news.gmane.org gmane.linux.ports.parisc:23772

show_regs() was one bloaty function. Split it into a few cleaner
functions and define a clean macro to print a line of registers.

[And from Thibaut, only print fprs on a usermode trap.]

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

 arch/parisc/kernel/traps.c |   84 +++++++++++++++++++++-----------------------
 1 files changed, 40 insertions(+), 44 deletions(-)

b91fba22eff9ce81d60b078d4c4f9973a31692dc
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index ff20060..348344a 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -66,57 +66,42 @@ #define RFMT "%016lx"
 #else
 #define RFMT "%08lx"
 #endif
+#define FFMT "%016llx"	/* fpregs are 64-bit always */
 
-void show_regs(struct pt_regs *regs)
+#define PRINTREGS(lvl,r,f,fmt,x)	\
+	printk("%s%s%02d-%02d  " fmt " " fmt " " fmt " " fmt "\n",	\
+		lvl, f, (x), (x+3), (r)[(x)+0], (r)[(x)+1],		\
+		(r)[(x)+2], (r)[(x)+3])
+
+static void print_gr(char *level, struct pt_regs *regs)
 {
 	int i;
-	char buf[128], *p;
-	char *level;
-	unsigned long cr30;
-	unsigned long cr31;
-	/* carlos says that gcc understands better memory in a struct,
-	 * and it makes our life easier with fpregs -- T-Bone */
-	struct { u32 sw[2]; } s;
-	
-	level = user_mode(regs) ? KERN_DEBUG : KERN_CRIT;
-
-	printk("%s\n", level); /* don't want to have that pretty register dump messed up */
+	char buf[64];
 
+	printk("%s\n", level);
 	printk("%s     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI\n", level);
 	printbinary(buf, regs->gr[0], 32);
 	printk("%sPSW: %s %s\n", level, buf, print_tainted());
 
-	for (i = 0; i < 32; i += 4) {
-		int j;
-		p = buf;
-		p += sprintf(p, "%sr%02d-%02d ", level, i, i + 3);
-		for (j = 0; j < 4; j++) {
-			p += sprintf(p, " " RFMT, (i+j) == 0 ? 0 : regs->gr[i + j]);
-		}
-		printk("%s\n", buf);
-	}
+	for (i = 0; i < 32; i += 4)
+		PRINTREGS(level, regs->gr, "r", RFMT, i);
+}
 
-	for (i = 0; i < 8; i += 4) {
-		int j;
-		p = buf;
-		p += sprintf(p, "%ssr%d-%d  ", level, i, i + 3);
-		for (j = 0; j < 4; j++) {
-			p += sprintf(p, " " RFMT, regs->sr[i + j]);
-		}
-		printk("%s\n", buf);
-	}
+static void print_fr(char *level, struct pt_regs *regs)
+{
+	int i;
+	char buf[64];
+	struct { u32 sw[2]; } s;
 
 	/* FR are 64bit everywhere. Need to use asm to get the content
 	 * of fpsr/fper1, and we assume that we won't have a FP Identify
 	 * in our way, otherwise we're screwed.
 	 * The fldd is used to restore the T-bit if there was one, as the
 	 * store clears it anyway.
-	 * BTW, PA2.0 book says "thou shall not use fstw on FPSR/FPERs". */ 
-	__asm__ (
-		"fstd %%fr0,0(%1)	\n\t"
-		"fldd 0(%1),%%fr0	\n\t"
-		: "=m" (s) : "r" (&s) : "%r0"
-		);
+	 * PA2.0 book says "thou shall not use fstw on FPSR/FPERs" - T-Bone */
+	asm volatile ("fstd %%fr0,0(%1)	\n\t"
+		      "fldd 0(%1),%%fr0	\n\t"
+		      : "=m" (s) : "r" (&s) : "r0");
 
 	printk("%s\n", level);
 	printk("%s      VZOUICununcqcqcqcqcqcrmunTDVZOUI\n", level);
@@ -125,14 +110,25 @@ void show_regs(struct pt_regs *regs)
 	printk("%sFPER1: %08x\n", level, s.sw[1]);
 
 	/* here we'll print fr0 again, tho it'll be meaningless */
-	for (i = 0; i < 32; i += 4) {
-		int j;
-		p = buf;
-		p += sprintf(p, "%sfr%02d-%02d ", level, i, i + 3);
-		for (j = 0; j < 4; j++)
-			p += sprintf(p, " %016llx", (i+j) == 0 ? 0 : regs->fr[i+j]);
-		printk("%s\n", buf);
-	}
+	for (i = 0; i < 32; i += 4)
+		PRINTREGS(level, regs->fr, "fr", FFMT, i);
+}
+
+void show_regs(struct pt_regs *regs)
+{
+	int i;
+	char *level;
+	unsigned long cr30, cr31;
+
+	level = user_mode(regs) ? KERN_DEBUG : KERN_CRIT;
+
+	print_gr(level, regs);
+
+	for (i = 0; i < 8; i += 4)
+		PRINTREGS(level, regs->sr, "sr", RFMT, i);
+
+	if (user_mode(regs))
+		print_fr(level, regs);
 
 	cr30 = mfctl(30);
 	cr31 = mfctl(31);
-- 
1.3.3

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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: [parisc-linux] [PATCH 22/23] [PARISC] Fix PCREL22F relocation
	problem for most modules
Date: Sun, 25 Jun 2006 19:34:50 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:23773

From: James Bottomley <jejb@parisc-linux.org>

The new problem, which has been affecting many more modules was that
our new ioremap really takes chunks out of our vmalloc space.  The net
result being that any two kernel vmalloc's now have to slot into the
chunked up space.  So the vmallocs for a modules init and core sectons
are no longer necessarily contiguous.  Unfortunately, the module loader
thinks that any internal symbol references should be satisfiable using the
jump instruction, which isn't true if the symbol is referenced from init
to core and vmalloc placed them a long way apart.

Fix this by introducing a new stub type for intra module inter sectional
jumps and using it.

And, by the way, before anyone complains, this won't fix modules that
fail to load because PCREF22F can't reach the stubs in the first place
(like ipv6.)

Signed-off-by: James Bottomley <jejb@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

 arch/parisc/kernel/module.c |   63 ++++++++++++++++++++++++++++++++++---------
 1 files changed, 50 insertions(+), 13 deletions(-)

78a01907452ac0dccd0ed38f9d25c6bee6b1cf95
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index f27cfe4..aee3118 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -89,6 +89,12 @@ static inline int is_local(struct module
 	return is_init(me, loc) || is_core(me, loc);
 }
 
+static inline int is_local_section(struct module *me, void *loc, void *dot)
+{
+	return (is_init(me, loc) && is_init(me, dot)) ||
+		(is_core(me, loc) && is_core(me, dot));
+}
+
 
 #ifndef __LP64__
 struct got_entry {
@@ -364,8 +370,14 @@ static Elf_Addr get_fdesc(struct module 
 }
 #endif /* __LP64__ */
 
+enum elf_stub_type {
+	ELF_STUB_GOT,
+	ELF_STUB_MILLI,
+	ELF_STUB_DIRECT,
+};
+
 static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
-	int millicode, int init_section)
+	enum elf_stub_type stub_type, int init_section)
 {
 	unsigned long i;
 	struct stub_entry *stub;
@@ -396,7 +408,7 @@ #ifndef __LP64__
 	stub->insns[1] |= reassemble_17(rrsel(value, addend) / 4);
 
 #else
-/* for 64-bit we have two kinds of stubs:
+/* for 64-bit we have three kinds of stubs:
  * for normal function calls:
  * 	ldd 0(%dp),%dp
  * 	ldd 10(%dp), %r1
@@ -408,18 +420,23 @@ #else
  * 	ldo 0(%r1), %r1
  * 	ldd 10(%r1), %r1
  * 	bve,n (%r1)
+ *
+ * for direct branches (jumps between different section of the
+ * same module):
+ *	ldil 0, %r1
+ *	ldo 0(%r1), %r1
+ *	bve,n (%r1)
  */
-	if (!millicode)
-	{
+	switch (stub_type) {
+	case ELF_STUB_GOT:
 		stub->insns[0] = 0x537b0000;	/* ldd 0(%dp),%dp	*/
 		stub->insns[1] = 0x53610020;	/* ldd 10(%dp),%r1	*/
 		stub->insns[2] = 0xe820d000;	/* bve (%r1)		*/
 		stub->insns[3] = 0x537b0030;	/* ldd 18(%dp),%dp	*/
 
 		stub->insns[0] |= reassemble_14(get_got(me, value, addend) & 0x3fff);
-	}
-	else
-	{
+		break;
+	case ELF_STUB_MILLI:
 		stub->insns[0] = 0x20200000;	/* ldil 0,%r1		*/
 		stub->insns[1] = 0x34210000;	/* ldo 0(%r1), %r1	*/
 		stub->insns[2] = 0x50210020;	/* ldd 10(%r1),%r1	*/
@@ -427,7 +444,17 @@ #else
 
 		stub->insns[0] |= reassemble_21(lrsel(value, addend));
 		stub->insns[1] |= reassemble_14(rrsel(value, addend));
+		break;
+	case ELF_STUB_DIRECT:
+		stub->insns[0] = 0x20200000;    /* ldil 0,%r1           */
+		stub->insns[1] = 0x34210000;    /* ldo 0(%r1), %r1      */
+		stub->insns[2] = 0xe820d002;    /* bve,n (%r1)          */
+
+		stub->insns[0] |= reassemble_21(lrsel(value, addend));
+		stub->insns[1] |= reassemble_14(rrsel(value, addend));
+		break;
 	}
+
 #endif
 
 	return (Elf_Addr)stub;
@@ -539,14 +566,14 @@ #endif
 			break;
 		case R_PARISC_PCREL17F:
 			/* 17-bit PC relative address */
-			val = get_stub(me, val, addend, 0, is_init(me, loc));
+			val = get_stub(me, val, addend, ELF_STUB_GOT, is_init(me, loc));
 			val = (val - dot - 8)/4;
 			CHECK_RELOC(val, 17)
 			*loc = (*loc & ~0x1f1ffd) | reassemble_17(val);
 			break;
 		case R_PARISC_PCREL22F:
 			/* 22-bit PC relative address; only defined for pa20 */
-			val = get_stub(me, val, addend, 0, is_init(me, loc));
+			val = get_stub(me, val, addend, ELF_STUB_GOT, is_init(me, loc));
 			DEBUGP("STUB FOR %s loc %lx+%lx at %lx\n", 
 			       strtab + sym->st_name, (unsigned long)loc, addend, 
 			       val)
@@ -643,13 +670,23 @@ #endif
 			       strtab + sym->st_name,
 			       loc, val);
 			/* can we reach it locally? */
-			if(!is_local(me, (void *)val)) {
-				if (strncmp(strtab + sym->st_name, "$$", 2)
+			if(!is_local_section(me, (void *)val, (void *)dot)) {
+
+				if (is_local(me, (void *)val))
+					/* this is the case where the
+					 * symbol is local to the
+					 * module, but in a different
+					 * section, so stub the jump
+					 * in case it's more than 22
+					 * bits away */
+					val = get_stub(me, val, addend, ELF_STUB_DIRECT,
+						       is_init(me, loc));
+				else if (strncmp(strtab + sym->st_name, "$$", 2)
 				    == 0)
-					val = get_stub(me, val, addend, 1,
+					val = get_stub(me, val, addend, ELF_STUB_MILLI,
 						       is_init(me, loc));
 				else
-					val = get_stub(me, val, addend, 0,
+					val = get_stub(me, val, addend, ELF_STUB_GOT,
 						       is_init(me, loc));
 			}
 			DEBUGP("STUB FOR %s loc %lx, val %lx+%lx at %lx\n", 
-- 
1.3.3

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>     1. How do I compile the qc-usb driver directly into the kernel rather
> than as a standalone module?
>
>        At the moment, it is not possible without a lot of work to build t=
he
> qc-usb driver into the kernel. We recommend building qc-usb driver as a
> separate module rather than directly into the kernel. [snip]
>
> So apparently there is a few chance but regarding the generic advise it
> could be out dated, the best is certainly to contact developers to get an
> actual status ;-)

Thanks for the help and advice - here's the answer from the developer:

"I haven't tried doing this recently. I made a couple of attempts to
shoehorn the driver into the kernel build system, but it ended up being
a rathole I didn't want to go down until I've cleaned up the driver
itself. Integrating the qc-usb driver into the kernel is definitely on
the TODO list, just not right now. Sorry."

> Appology if I don't have much more help to offer (no hardware and mainly
> dramaticaly lakes of time, specialy for the moment).

This has all been very helpful. If it is indeed a problem in the hppa-linux=
=20
kernel, I'll keep a watchful eye out for fixes. If there's anything a kerne=
l=20
layman like me can do, please let me know.

Thanks,

	Kai

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On Sun, Jun 25, 2006 at 07:02:04PM -0700, Kai Holthaus wrote:
> This has all been very helpful. If it is indeed a problem in the hppa-linux 
> kernel, I'll keep a watchful eye out for fixes. If there's anything a kernel 
> layman like me can do, please let me know.
> 

Ironic that you mentioned this today. The fix to module.c James
committed yesterday should fix this for you. Please try 2.6.17-pa6 and
see if that helps.

Cheers,
	Kyle M.
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On Sun, Jun 25, 2006 at 09:24:57PM -0700, Kai Holthaus wrote:
> Jun 25 21:20:02 obelix kernel: ioctl32(qcset:2965): Unknown cmd fd(3) 
> cmd(403c7601){00} arg(c05cd808) on /dev/video0
> 

On a first look, it sounds like the driver is not properly handling
compat_ioctl (32bit ioctls on a 64bit kernel).

I can try to take a look sometime this week, unless someone else
beats me to it.

Cheers,
	Kyle
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I haven't been able to boot recent consoles of my c3k (oh, I did
accidently boot a 64-bit kernel built for an A500 without frame
buffer support).  The last build that successfully boots is
2.6.17-rc3-pa3.  The last messages that is see are:

...
STI PCI graphic ROM found at f6000000 (64 kB), fb at f8000000 (32 MB)
    id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
    graphics card name: PCI_GRAFFITIX1280
STI PCI graphic ROM found at f7000000 (2048 kB), fb at fa000000 (32 MB)
    id 35acda30-9a02587, conforms to spec rev. 8.0d
    graphics card name: A1262A
sticon: Initializing STI text console.

Possibly, the problem is the unsupported A1262A.  This is what
follows with 2.6.17-rc3-pa3:

Console: switching to colour STI console 160x64
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIX1280, id: 2d08c0a7, mm
io: 0xf8100000
stifb: 'A1262A' (id: 0x35acda30) not supported.
...

Any ideas as to what's broken in later kernels?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:23778

One of the current disadvantages parisc has is that we have to walk the
inode mapping list to do a flush_dcache_page(), which means we get
entangled in locking.  The reason we do this is because a VIPT cache
can't be flushed without a mapping, so we have to find one to use

The intent of this patch is to instead flush through the tmpalias space
on the correct congruence boundary which would dispense with the need
for finding a mapping at all.  However, in the current incarnation we
still walk the mappings to check that all the usermappings are, indeed,
on the correct congruence boundary.  Unfortunately, as you'll see if you
try it out, not all are ... which is a bit of a problem.

James

? arch/parisc/kernel/test.c
? arch/parisc/kernel/test.o.nonvolatile
Index: arch/parisc/kernel/cache.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/cache.c,v
retrieving revision 1.28
diff -u -r1.28 cache.c
--- arch/parisc/kernel/cache.c	17 Dec 2005 17:21:16 -0000	1.28
+++ arch/parisc/kernel/cache.c	1 Jan 2006 17:26:25 -0000
@@ -267,9 +267,8 @@
 	struct address_space *mapping = page_mapping(page);
 	struct vm_area_struct *mpnt;
 	struct prio_tree_iter iter;
-	unsigned long offset;
-	unsigned long addr;
 	pgoff_t pgoff;
+	unsigned long addr = 0;
 	unsigned long pfn = page_to_pfn(page);
 
 
@@ -285,33 +284,27 @@
 
 	pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
 
-	/* We have carefully arranged in arch_get_unmapped_area() that
-	 * *any* mappings of a file are always congruently mapped (whether
-	 * declared as MAP_PRIVATE or MAP_SHARED), so we only need
-	 * to flush one address here for them all to become coherent */
-
 	flush_dcache_mmap_lock(mapping);
 	vma_prio_tree_foreach(mpnt, &iter, &mapping->i_mmap, pgoff, pgoff) {
-		offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
-		addr = mpnt->vm_start + offset;
+		unsigned long offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT;
+		if (!addr)
+			addr = mpnt->vm_start + offset;
+		if ((addr &  0x3fffff) != ((mpnt->vm_start + offset)
+					   & 0x3fffff)) {
+			printk(KERN_ERR "flush_dcache_page address aliasing mismatch: 0x%lx; 0x%lx\n", addr, mpnt->vm_start + offset);
+			flush_dcache_tmpalias_page(mpnt->vm_start + offset,
+						   pfn << PAGE_SHIFT);
+			flush_icache_tmpalias_page(mpnt->vm_start + offset,
+						   pfn << PAGE_SHIFT);
+		    }
 
-		/* Flush instructions produce non access tlb misses.
-		 * On PA, we nullify these instructions rather than
-		 * taking a page fault if the pte doesn't exist.
-		 * This is just for speed.  If the page translation
-		 * isn't there, there's no point exciting the
-		 * nadtlb handler into a nullification frenzy.
-		 *
-		 * Make sure we really have this page: the private
-		 * mappings may cover this area but have COW'd this
-		 * particular page.
-		 */
-  		if (translation_exists(mpnt, addr, pfn)) {
-			__flush_cache_page(mpnt, addr);
-			break;
-		}
 	}
 	flush_dcache_mmap_unlock(mapping);
+	/* All VM areas in user space start on our cache congruence
+	 * boundary, so we don't need to know where any of them start,
+	 * we simply flush the offset */
+	flush_dcache_tmpalias_page(addr, pfn << PAGE_SHIFT);
+	flush_icache_tmpalias_page(addr, pfn << PAGE_SHIFT);
 }
 EXPORT_SYMBOL(flush_dcache_page);
 
@@ -360,3 +353,43 @@
 
 	printk("Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
+
+/* These two are in pacache.S */
+extern void flush_alias_page(unsigned long paddr, unsigned long vaddr);
+extern void flush_alias_i_page(unsigned long paddr, unsigned long vaddr);
+
+extern void flush_dcache_tmpalias_page(unsigned long vaddr,
+				       unsigned long paddr)
+{
+	flush_alias_page(paddr, vaddr);
+}
+EXPORT_SYMBOL(flush_dcache_tmpalias_page);
+
+extern void flush_dcache_tmpalias_page_as_page(unsigned long vaddr,
+					       struct page *page)
+{
+	flush_alias_page(page_to_pfn(page)<<PAGE_SHIFT, vaddr);
+}
+EXPORT_SYMBOL(flush_dcache_tmpalias_page_as_page);
+
+extern void flush_icache_tmpalias_page(unsigned long vaddr,
+				       unsigned long paddr)
+{
+	flush_alias_i_page(paddr, vaddr);
+}
+EXPORT_SYMBOL(flush_icache_tmpalias_page);
+
+extern void flush_icache_tmpalias_page_as_page(unsigned long vaddr,
+					       struct page *page)
+{
+	flush_alias_i_page(page_to_pfn(page)<<PAGE_SHIFT, vaddr);
+}
+EXPORT_SYMBOL(flush_icache_tmpalias_page_as_page);
+
+void flush_icache_page(struct vm_area_struct *vma, struct page *page,
+		       unsigned long vaddr)
+{
+	flush_alias_i_page(page_to_pfn(page)<<PAGE_SHIFT, vaddr);
+}
+EXPORT_SYMBOL(flush_icache_page);
+
Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/entry.S,v
retrieving revision 1.33
diff -u -r1.33 entry.S
--- arch/parisc/kernel/entry.S	19 Oct 2005 19:36:52 -0000	1.33
+++ arch/parisc/kernel/entry.S	1 Jan 2006 17:26:27 -0000
@@ -619,21 +619,21 @@
 	DEPI		0,31,23,\tmp1
 	cmpb,COND(<>),n	\tmp,\tmp1,\fault
 	ldi		(_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot
-	depd,z		\prot,8,7,\prot
 	/*
 	 * OK, it is in the temp alias region, check whether "from" or "to".
 	 * Check "subtle" note in pacache.S re: r23/r26.
 	 */
 #ifdef CONFIG_64BIT
+	depd,z		\prot,8,7,\prot
 	extrd,u,*=	\va,41,1,%r0
 #else
+	depw,z		\prot,8,7,\prot
 	extrw,u,=	\va,9,1,%r0
 #endif
 	or,COND(tr)	%r23,%r0,\pte
 	or		%r26,%r0,\pte
 	.endm 
 
-
 	/*
 	 * Align fault_vector_20 on 4K boundary so that both
 	 * fault_vector_11 and fault_vector_20 are on the
@@ -1268,7 +1268,7 @@
 	nop
 
 nadtlb_check_flush_20w:
-	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
+	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_check_alias_20w
 
 	/* Insert a "flush only" translation */
 
@@ -1284,6 +1284,13 @@
 	rfir
 	nop
 
+nadtlb_check_alias_20w:	
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate
+
+	idtlbt          pte,prot
+
+	rfir
+	nop
 #else
 
 dtlb_miss_11:
@@ -1310,27 +1317,15 @@
 
 dtlb_check_alias_11:
 
-	/* Check to see if fault is in the temporary alias region */
-
-	cmpib,<>,n      0,spc,dtlb_fault /* forward */
-	ldil            L%(TMPALIAS_MAP_START),t0
-	copy            va,t1
-	depwi           0,31,23,t1
-	cmpb,<>,n       t0,t1,dtlb_fault /* forward */
-	ldi             (_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),prot
-	depw,z          prot,8,7,prot
+	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault
 
-	/*
-	 * OK, it is in the temp alias region, check whether "from" or "to".
-	 * Check "subtle" note in pacache.S re: r23/r26.
-	 */
+	mfsp		%sr1,t0
+	mtsp		spc,%sr1
 
-	extrw,u,=       va,9,1,r0
-	or,tr           %r23,%r0,pte    /* If "from" use "from" page */
-	or              %r26,%r0,pte    /* else "to", use "to" page  */
+	idtlba          pte,(%sr1,va)
+	idtlbp          prot,(%sr1,va)
 
-	idtlba          pte,(va)
-	idtlbp          prot,(va)
+	mstp		t0,%sr1		/* Restore sr1 */
 
 	rfir
 	nop
@@ -1427,7 +1422,7 @@
 	nop
 
 nadtlb_check_flush_20:
-	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_emulate
+	bb,>=,n          pte,_PAGE_FLUSH_BIT,nadtlb_check_alias_20
 
 	/* Insert a "flush only" translation */
 
@@ -1442,6 +1437,16 @@
 
 	rfir
 	nop
+
+	
+nadtlb_check_alias_20:
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate
+
+	idtlbt          pte,prot
+
+	rfir
+	nop
+
 #endif
 
 nadtlb_emulate:
@@ -1528,7 +1533,7 @@
 	get_pgd		spc,ptp
 	space_check	spc,t0,itlb_fault
 
-	L3_ptep		ptp,pte,t0,va,itlb_fault
+	L3_ptep		ptp,pte,t0,va,itlb_check_alias_20w
 
 	update_ptep	ptp,pte,t0,t1
 
@@ -1539,6 +1544,14 @@
 	rfir
 	nop
 
+itlb_check_alias_20w:
+	do_alias	spc,t0,t1,va,pte,prot,itlb_fault
+
+	iitlbt          pte,prot
+
+	rfir
+	nop
+
 #else
 
 itlb_miss_11:
@@ -1546,7 +1559,7 @@
 
 	space_check	spc,t0,itlb_fault
 
-	L2_ptep		ptp,pte,t0,va,itlb_fault
+	L2_ptep		ptp,pte,t0,va,itlb_check_alias_11
 
 	update_ptep	ptp,pte,t0,t1
 
@@ -1563,12 +1576,27 @@
 	rfir
 	nop
 
+itlb_check_alias_11:
+
+	do_alias	spc,t0,t1,va,pte,prot,itlb_fault
+
+	mfsp		%sr1,t0
+	mtsp		spc,%sr1
+
+	iitlba          pte,(%sr1,va)
+	iitlbp          prot,(%sr1,va)
+
+	mstp		t0,%sr1		/* Restore sr1 */
+
+	rfir
+	nop
+
 itlb_miss_20:
 	get_pgd		spc,ptp
 
 	space_check	spc,t0,itlb_fault
 
-	L2_ptep		ptp,pte,t0,va,itlb_fault
+	L2_ptep		ptp,pte,t0,va,itlb_check_alias_20
 
 	update_ptep	ptp,pte,t0,t1
 
@@ -1576,6 +1604,14 @@
 
 	f_extend	pte,t0	
 
+	iitlbt          pte,prot
+
+	rfir
+	nop
+	
+dtlb_check_alias_20:
+	do_alias	spc,t0,t1,va,pte,prot,itlb_fault
+	
 	iitlbt          pte,prot
 
 	rfir
Index: arch/parisc/kernel/pacache.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/pacache.S,v
retrieving revision 1.21
diff -u -r1.21 pacache.S
--- arch/parisc/kernel/pacache.S	6 Oct 2005 04:41:47 -0000	1.21
+++ arch/parisc/kernel/pacache.S	1 Jan 2006 17:26:27 -0000
@@ -479,8 +479,8 @@
 
 	/* Purge any old translations */
 
-	pdtlb		0(%r28)
-	pdtlb		0(%r29)
+	pdtlb,l		0(%r28)
+	pdtlb,l		0(%r29)
 
 	ldi		64, %r1
 
@@ -563,7 +563,7 @@
 
 	/* Purge any old translation */
 
-	pdtlb		0(%r28)
+	pdtlb,l		0(%r28)
 
 #ifdef CONFIG_64BIT
 	ldi		32, %r1			/* PAGE_SIZE/128 == 32 */
@@ -797,7 +797,6 @@
 
 	.procend
 
-#if 0
 	/* Currently not used, but it still is a possible alternate
 	 * solution.
 	 */
@@ -809,10 +808,11 @@
 	.callinfo NO_CALLS
 	.entry
 
-	tophys_r1		%r26
-
 	ldil		L%(TMPALIAS_MAP_START), %r28
 #ifdef CONFIG_64BIT
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
+#endif
 	extrd,u		%r26, 56,32, %r26	/* convert phys addr to tlb insert format */
 	depd		%r25, 63,22, %r28	/* Form aliased virtual address 'to' */
 	depdi		0, 63,12, %r28		/* Clear any offset bits */
@@ -824,7 +824,7 @@
 
 	/* Purge any old translation */
 
-	pdtlb		0(%r28)
+	pdtlb,l		0(%r28)
 
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), %r23
@@ -861,7 +861,67 @@
 	.exit
 
 	.procend
+
+	.export		flush_alias_i_page
+	
+flush_alias_i_page:
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+	ldil		L%(TMPALIAS_MAP_START), %r28
+#ifdef CONFIG_64BIT
+#if (TMPALIAS_MAP_START >= 0x80000000)
+	depdi		0, 31,32, %r28		/* clear any sign extension */
 #endif
+	extrd,u		%r26, 56,32, %r26	/* convert phys addr to tlb insert format */
+	depd		%r25, 63,22, %r28	/* Form aliased virtual address 'to' */
+	depdi		0, 63,12, %r28		/* Clear any offset bits */
+#else
+	extrw,u		%r26, 24,25, %r26	/* convert phys addr to tlb insert format */
+	depw		%r25, 31,22, %r28	/* Form aliased virtual address 'to' */
+	depwi		0, 31,12, %r28		/* Clear any offset bits */
+#endif
+
+	/* Purge any old translation */
+
+	pitlb,l		0(%sr0,%r28)
+
+	ldil		L%dcache_stride, %r1
+	ldw		R%dcache_stride(%r1), %r23
+
+#ifdef CONFIG_64BIT
+	depdi,z		1, 63-PAGE_SHIFT,1, %r29
+#else
+	depwi,z		1, 31-PAGE_SHIFT,1, %r29
+#endif
+	add		%r28, %r29, %r29
+	sub		%r29, %r23, %r29
+
+1:      fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	fic,m		%r23(%sr4,%r28)
+	CMPB<<		%r28, %r29, 1b
+	fic,m		%r23(%sr4,%r28)
+
+	sync
+	bv		%r0(%r2)
+	nop
+	.exit
+
+	.procend
 
 	.export flush_user_dcache_range_asm
 


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Subject: Re:[parisc-linux] [PATCH] flush our cache through tmpalias space
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Xref: news.gmane.org gmane.linux.ports.parisc:23779

Hello James,

> One of the current disadvantages parisc has is that we have to walk the=

> inode mapping list to do a flush_dcache_page(), which means we get
> entangled in locking.  The reason we do this is because a VIPT cache
> can't be flushed without a mapping, so we have to find one to use
> 
> The intent of this patch is to instead flush through the tmpalias space=

> on the correct congruence boundary which would dispense with the need
> for finding a mapping at all.  However, in the current incarnation we
> still walk the mappings to check that all the usermappings are, indeed,=

> on the correct congruence boundary.  Unfortunately, as you'll see if yo=
u
> try it out, not all are ... which is a bit of a problem.
> 
I would so but:
make -f /usr/src/linux-2.6.17-pa3/scripts/Makefile.build obj=3Darch/paris=
c/kernel
  gcc -Wp,-MD,arch/parisc/kernel/.cache.o.d  -nostdinc -isystem
/usr/lib/gcc/hppa-linux-gnu/4.0.4/include -D__KERNEL__ -Iinclude -Iinclud=
e2
-I/usr/src/linux-2.6.17-pa3/include -include include/linux/autoconf.h
-I/usr/src/linux-2.6.17-pa3/arch/parisc/kernel -Iarch/parisc/kernel -Wall=

-Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-comm=
on
-O2 -fomit-frame-pointer -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=3D1.1 -mschedule=3D7200
-Wdeclaration-after-statement -Wno-pointer-sign  -D"KBUILD_STR(s)=3D#s"
-D"KBUILD_BASENAME=3DKBUILD_STR(cache)"  -D"KBUILD_MODNAME=3DKBUILD_STR(c=
ache)" -c
-o arch/parisc/kernel/cache.o /usr/src/linux-2.6.17-pa3/arch/parisc/kerne=
l/cache.c
/usr/src/linux-2.6.17-pa3/arch/parisc/kernel/cache.c: In function
'flush_dcache_page':
/usr/src/linux-2.6.17-pa3/arch/parisc/kernel/cache.c:305: warning: implic=
it
declaration of function 'flush_dcache_tmpalias_page'
/usr/src/linux-2.6.17-pa3/arch/parisc/kernel/cache.c:307: warning: implic=
it
declaration of function 'flush_icache_tmpalias_page'
/usr/src/linux-2.6.17-pa3/arch/parisc/kernel/cache.c: At top level:
/usr/src/linux-2.6.17-pa3/arch/parisc/kernel/cache.c:373: warning: confli=
cting
types for 'flush_dcache_tmpalias_page'
/usr/src/linux-2.6.17-pa3/arch/parisc/kernel/cache.c:305: warning: previo=
us
implicit declaration of 'flush_dcache_tmpalias_page' was here
/usr/src/linux-2.6.17-pa3/arch/parisc/kernel/cache.c:387: warning: confli=
cting
types for 'flush_icache_tmpalias_page'
/usr/src/linux-2.6.17-pa3/arch/parisc/kernel/cache.c:307: warning: previo=
us
implicit declaration of 'flush_icache_tmpalias_page' was here
/usr/src/linux-2.6.17-pa3/arch/parisc/kernel/cache.c:400:29: error: macro=

"flush_icache_page" passed 3 arguments, but takes just 2
/usr/src/linux-2.6.17-pa3/arch/parisc/kernel/cache.c:401: error: syntax e=
rror
before '{' token
/usr/src/linux-2.6.17-pa3/arch/parisc/kernel/cache.c:404: error:
'flush_icache_page' undeclared here (not in a function)
/usr/src/linux-2.6.17-pa3/arch/parisc/kernel/cache.c:404: warning: type
defaults to 'int' in declaration of 'flush_icache_page'
make[2]: *** [arch/parisc/kernel/cache.o] Error 1

I suppose that warning could be easily avoid by puting those funxtion
declaration in some header like include/asm-parisc/cacheflush.h:
[snip]
extern void flush_dcache_tmpalias_page(unsigned long vaddr, unsigned long=
 paddr);
extern void flush_icache_tmpalias_page(unsigned long vaddr, unsigned long=
 paddr);

[snip]


> James
> 
> ? arch/parisc/kernel/test.c
> ? arch/parisc/kernel/test.o.nonvolatile
> Index: arch/parisc/kernel/cache.c
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/cache.c,v
> retrieving revision 1.28
> diff -u -r1.28 cache.c
> --- arch/parisc/kernel/cache.c	17 Dec 2005 17:21:16 -0000	1.28
> +++ arch/parisc/kernel/cache.c	1 Jan 2006 17:26:25 -0000
[snip
> +
> +void flush_icache_page(struct vm_area_struct *vma, struct page *page,
> +		       unsigned long vaddr)
> +{
> +	flush_alias_i_page(page_to_pfn(page)<<PAGE_SHIFT, vaddr);
> +}
> +EXPORT_SYMBOL(flush_icache_page);
> +
[snip]

but the actual error came from the fact that this same
include/asm-parisc/cacheflush.h already define a macro of the same name:
[snip]
#define flush_icache_page(vma,page)     do { flush_kernel_dcache_page(pag=
e);
flush_kernel_icache_page(page_address(page)); } while (0)
[snip]

TIA,
    Joel=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous de=
venez aujourd'hui Scarlet One grace a un client existant de Scarlet, vous=
 recevez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite su=
r http://www.clubscarlet.be

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Xref: news.gmane.org gmane.linux.ports.parisc:23780

Hello James,

I also read that your scsi work was merge for future 2.6.18 and try to gr=
ab it
with following method:
git clone http://www.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2=
.6

but failed with following message:
Cannot get remote repository information.
Perhaps git-update-server-info needs to be run there?

Any other way to grab this work (specialy interested in 53c7100 and ncr53=
c8xx
for my d380 and c110 parisc-linux boxes)?

TIA,
    Joel=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous de=
venez aujourd'hui Scarlet One grace a un client existant de Scarlet, vous=
 recevez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite su=
r http://www.clubscarlet.be

_______________________________________________
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Subject: [parisc-linux] Back to "BUG: soft lockup detected on CPU#0" [Was:
 N4k also ran 7days
 my stress test: k 2.6.17-pa3 + gcc-3.3 [followup]]
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Joel Soete wrote:
> Hello all,
> 
> Same success with k 2.6.17-pa3 compiled also with gcc-3.3 and same tests.
> 
> # uname -a
> Linux patst006 2.6.17-pa3-n4kmp #2471 SMP Fri Jun 23 15:39:23 CEST 2006 
> parisc64 GNU/Linux
> 
> This doesn't yet include Jejb's do_gettimeofday() patch.
> 
> top - 13:06:57 up 7 days, 20:47,  3 users,  load average: 6.63, 6.47, 6.82
> Tasks:  84 total,   4 running,  80 sleeping,   0 stopped,   0 zombie
> Cpu0  : 10.6% us, 89.4% sy,  0.0% ni,  0.0% id,  0.0% wa,  0.0% hi,  
> 0.0% si
> Cpu1  : 75.0% us,  6.7% sy,  0.0% ni,  0.0% id,  0.0% wa,  0.0% hi, 
> 18.3% si
> Mem:   4113812k total,  3859048k used,   254764k free,   496240k buffers
> Swap:   250872k total,        4k used,   250868k free,   287936k cached
> Change delay from 1.0 to:
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  P WCHAN     
> COMMAND
> 18375 root      21  -4  3524 1020  816 R   97  0.0   0:02.05 0 intr_chec 
> tar
> 18381 root      21  -4 15320  13m 2756 R   77  0.3   0:01.06 1 intr_chec 
> cc1
>  1095 gkrellmd  15   0  5256 1488 1108 S   17  0.0   1925:59 1 select    
> gkrellmd
> 18371 root      21  -4 25064  22m 2852 R    6  0.6   0:02.34 1 intr_retu 
> cc1
> 28865 root      16   0  2976 1436 1096 R    3  0.0 300:37.48 0 184467440 
> top
> [snip]
> 
> I am now curious to rebuild exactely the same src/config with gcc-4.1?
> 
Well, only few hours:

top - 22:48:32 up  9:46,  5 users,  load average: 5.37, 6.23, 6.51
Tasks:  77 total,   1 running,  76 sleeping,   0 stopped,   0 zombie
Cpu0  :  1.0% us,  7.5% sy,  0.0% ni,  6.0% id, 85.4% wa,  0.0% hi,  0.0% si
Cpu1  :  1.0% us, 14.5% sy,  0.0% ni,  0.0% id, 66.5% wa,  0.0% hi, 18.0% si
Mem:   4114224k total,  3924572k used,   189652k free,   473008k buffers
Swap:   250872k total,        4k used,   250868k free,   334900k cached

BUG: soft lockup detected on CPU#0!
Backtrace:
  [<00000000101122b0>] dump_stack+0x18/0x28
  [<0000000010171b50>] softlockup_tick+0x128/0x158
  [<00000000101518f0>] run_local_timers+0x28/0x38
  [<0000000010152660>] update_process_times+0x58/0xd8
  [<000000001011cb98>] smp_do_timer+0x70/0x80
  [<00000000101134cc>] timer_interrupt+0xdc/0x1e0
  [<0000000010171cf4>] handle_IRQ_event+0x74/0xd0
  [<0000000010171e0c>] __do_IRQ+0xbc/0x268
  [<0000000010113e04>] do_cpu_irq_mask+0x114/0x1e0
  [<0000000010104074>] intr_return+0x0/0x1c

I will so now apply jejb's do_gettimeofday() patch and see.

Joel

> 
> Joel Soete wrote:
> 
>> Hello all,
>>
>> There was a very first hypothesis that I wanted to get rid: this 
>> testing n4k could have some hw broken?
>>
>> As I don't have access to fine hp diagnostics (iirc passwd requested) 
>> and I remember that some old kernel seems to works fine, I tried to 
>> re-compile 2.6.8.1 + latest kyle's patches. Well, it failed to rebuild 
>> with default gcc (4.1 right now) but succeded with gcc-3.3.
>>
>> Finaly, this kernel builded as smp 64bit ran 7days continioulsy 
>> without any failure of any kind my 2 stress test loop:
>> one stressing a bit io
>> # while true ; do nice -n -4 tar -xspf linux-2.6.11-pa4.tar; nice -n 
>> -4 rm -rf linux-2.6.11-pa4; date; done
>>
>> another to stress a bit cpu
>> # while true ; do make clean ; make oldconfig ; nice -n -4 make -j2 
>> vmlinux 2>&1 | tee -a /var/logs/k-loop; done
>>
>> # grep "LD      vmlinux" k-loop | wc -l
>> 495
>>
>> # uname -a
>> Linux patst006 2.6.8.1 #1 SMP Fri Jun 16 12:59:31 CEST 2006 parisc64 
>> GNU/Linux
>>
>> top - 14:32:29 up 7 days, 56 min,  4 users,  load average: 5.42, 5.49, 
>> 5.70
>> Tasks:  80 total,   4 running,  76 sleeping,   0 stopped,   0 zombie
>> Cpu0  : 71.7% us, 12.4% sy,  0.0% ni,  0.0% id,  0.0% wa,  0.0% hi, 
>> 15.9% si
>> Cpu1  : 93.9% us,  6.1% sy,  0.0% ni,  0.0% id,  0.0% wa,  0.0% hi,  
>> 0.0% si
>> Mem:   4107192k total,  3809232k used,   297960k free,   651624k buffers
>> Swap:   250872k total,    10596k used,   240276k free,   286312k cached
>> Change delay from 1.0 to:
>>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  P 
>> WCHAN     COMMAND
>> 27806 root      21  -4 15772  12m 5320 R   97  0.3   0:01.66 1 
>> intr_chec cc1
>> 27741 root      21  -4 19168  17m 5320 R   70  0.4   0:13.19 0 
>> intr_chec cc1
>>   984 gkrellmd  16   0  5196 1256 3156 S   17  0.0   1036:51 0 
>> select    gkrellmd
>> 16937 root      17   0  2912 1376 2616 R   11  0.0 320:52.43 0 
>> 63        top
>> 27800 root      15  -4  3452 1024 2440 R    3  0.0   0:01.00 1 
>> 611521008 tar
>>     1 root      16   0  2316  700 2096 S    0  0.0   5:34.89 1 
>> select    init
>>
>> I am well aware that's not perfect test (there are better 'stress') 
>> but at least make me a bit more confident in hw ;-)
>>
>> Cheers,
>>     Joel
>> _______________________________________________
>> parisc-linux mailing list
>> parisc-linux@lists.parisc-linux.org
>> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
>>
> 
> 
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Hi pa-ckers!

This mail to let you know that the updated PA-RISC/Linux Boot HOWTO
has finally been published on TLDP:
http://tldp.org/HOWTO/PA-RISC-Linux-Boot-HOWTO/

Many thanks to those who helped me going through this!

HTH

T-Bone
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On Fri, Jun 23, 2006 at 10:41:09PM -0400, John David Anglin wrote:
> This is not to say that the locking code can't be improved.  As far
> as I can tell, hpux doesn't spin.  It has pre-abitration, priorities
> for waiters, etc.  When a lock is released, suwaiters is called to
> pass the lock in a fair way to another waiter if there is one.
> 

HPUX spinlocks /do/ spin, afaict. They just keep track of how long
they've been spinning for (and panic after 60 seconds.) On release of
a spinlock, they also donate it to another cpu, which is, I guess, the
arbitration thing. I can back this up with disassembly, but I wouldn't
be comfortable doing it over mail, due to copyright infringement and
blah blah.

Cheers,
	 Kyle M.
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Kyle McMartin wrote:
> On Fri, Jun 23, 2006 at 10:41:09PM -0400, John David Anglin wrote:
> 
>>This is not to say that the locking code can't be improved.  As far
>>as I can tell, hpux doesn't spin.  It has pre-abitration, priorities
>>for waiters, etc.  When a lock is released, suwaiters is called to
>>pass the lock in a fair way to another waiter if there is one.
>>
> 
> 
> HPUX spinlocks /do/ spin, afaict. They just keep track of how long
> they've been spinning for (and panic after 60 seconds.) On release of
> a spinlock, they also donate it to another cpu, which is, I guess, the
> arbitration thing. I can back this up with disassembly, but I wouldn't
> be comfortable doing it over mail, due to copyright infringement and
> blah blah.
> 
> Cheers,
> 	 Kyle M.

Cool ;-)

That said to followup another related thread <http://lists.parisc-linux.org/pipermail/parisc-linux/2006-July/029481.html>, the 
do_gettimeofday() jejb's patch doesn't help:

after just some hours of my stress test:

top - 17:52:25 up 21:57,  3 users,  load average: 8.16, 7.18, 6.91
Tasks:  84 total,   5 running,  79 sleeping,   0 stopped,   0 zombie
Cpu0  : 53.7% us, 35.3% sy,  0.0% ni,  0.0% id,  0.0% wa,  0.0% hi, 11.0% si
Cpu1  : 86.1% us, 10.2% sy,  0.0% ni,  0.0% id,  0.7% wa,  0.0% hi,  2.9% si
Mem:   4114224k total,  4018628k used,    95596k free,   483816k buffers
Swap:   250872k total,        4k used,   250868k free,   436632k cached


I still encountered the well know BUG: soft lockup detected
BUG: soft lockup detected on CPU#1!
Backtrace:
  [<00000000101122b0>] dump_stack+0x18/0x28
  [<0000000010171c60>] softlockup_tick+0x128/0x158
  [<0000000010151a00>] run_local_timers+0x28/0x38
  [<0000000010152770>] update_process_times+0x58/0xd8
  [<000000001011cc08>] smp_do_timer+0x70/0x80
  [<00000000101134b4>] timer_interrupt+0xdc/0x1e0
  [<0000000010171e04>] handle_IRQ_event+0x74/0xd0
  [<0000000010171f1c>] __do_IRQ+0xbc/0x268
  [<0000000010113e74>] do_cpu_irq_mask+0x114/0x1e0
  [<0000000010104074>] intr_return+0x0/0x1c

BUG: soft lockup detected on CPU#0!
Backtrace:
  [<00000000101122b0>] dump_stack+0x18/0x28
  [<0000000010171c60>] softlockup_tick+0x128/0x158
  [<0000000010151a00>] run_local_timers+0x28/0x38
  [<0000000010152770>] update_process_times+0x58/0xd8
  [<000000001011cc08>] smp_do_timer+0x70/0x80
  [<00000000101134b4>] timer_interrupt+0xdc/0x1e0
  [<0000000010171e04>] handle_IRQ_event+0x74/0xd0
  [<0000000010171f1c>] __do_IRQ+0xbc/0x268
  [<0000000010113e74>] do_cpu_irq_mask+0x114/0x1e0
  [<0000000010104074>] intr_return+0x0/0x1c

(only a small diff with previous failures: here it shows also 'CPU#1!')

Otoh previous test seems to show that older gcc-3.3 would produce a more operational kernel but I haven't any idea where to look for?

All guide line would be welcome.

Thanks,
     Joel
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On Thu, Jul 06, 2006 at 06:22:40PM +0000, Joel Soete wrote:
>  [<000000001011cc08>] smp_do_timer+0x70/0x80

You're running an SMP kernel.

time.c:

static inline unsigned long
gettimeoffset (void)
{
#ifndef CONFIG_SMP
	/*
	 * FIXME: This won't work on smp because jiffies are updated by cpu 0.
	 *    Once parisc-linux learns the cr16 difference between processors,
	 *    this could be made to work.
	 */

	long last_tick;
	long elapsed_cycles;

	/* it_value is the intended time of the next tick */
	last_tick = cpu_data[smp_processor_id()].it_value;

	/* Subtract one tick and account for possible difference between
	 * when we expected the tick and when it actually arrived.
	 * (aka wall vs real)
	 */
	last_tick -= clocktick * (jiffies - wall_jiffies + 1);
	elapsed_cycles = mfctl(16) - last_tick;

	/* the precision of this math could be improved */
	return elapsed_cycles / (PAGE0->mem_10msec / 10000);
#else
	return 0;
#endif
}

Now let's look at the comment for James' change:

<quote>
Apparently gettimeoffset can return small negative values (usually in
the 100us range).  If xtime.tv_nsec is accidentally less than this,
though (a fortunately unlikely event) it triggers the loop forever.

I've added a test and correct adjustment for this case.  It has a
warning printk in there which I'd like to leave for the time being
just in case this problem implicates some other part of the kernel.
</quote>

I don't see 0 being a small negative value. ;-)

James' fix only applied to UP builds. :)

Cheers,
	Kyle M.
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Xref: news.gmane.org gmane.linux.ports.parisc:23786

Hello James,

I was testing newest 2.6.18-rc1-pa1 on my c110; on this model an narrow single ended scsi disk is pluged in the external connection 
  drived by your driver 53c710:
[snip]
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
[snip]

Unfortunaltely at the middle of the sw upgrade (apt-get dist-upgrade) some failures occured:
[snip]
Jul  7 17:24:08 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
Jul  7 17:24:08 hpalin kernel: scsi1: Bus Reset detected, executing command 2fe93ce0, slot 2fd6864c, dsp 000a01e8[01e8]
Jul  7 17:24:08 hpalin kernel:  failing command because of reset, slot 2fd6864c, cmnd 2fe93ce0
Jul  7 17:24:09 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO BSY DATA_IN
Jul  7 17:24:09 hpalin kernel: scsi1: Bus Reset detected, executing command 2fe93ce0, slot 2fd6864c, dsp 000a01e8[01e8]
Jul  7 17:24:09 hpalin kernel:  failing command because of reset, slot 2fd6864c, cmnd 2fe93ce0
Jul  7 17:24:10 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO BSY DATA_IN
Jul  7 17:24:10 hpalin kernel: scsi1: Bus Reset detected, executing command 2fe93ce0, slot 2fd6864c, dsp 000a01e8[01e8]
Jul  7 17:24:10 hpalin kernel:  failing command because of reset, slot 2fd68520, cmnd 2fe93920
Jul  7 17:24:10 hpalin kernel:  failing command because of reset, slot 2fd6864c, cmnd 2fe93ce0
Jul  7 17:24:10 hpalin kernel:  failing command because of reset, slot 2fd68778, cmnd 2fe93420
Jul  7 17:24:10 hpalin kernel:  failing command because of reset, slot 2fd688a4, cmnd 2fe936a0
Jul  7 17:24:47 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO BSY DATA_IN
Jul  7 17:24:47 hpalin kernel: scsi1: Bus Reset detected, executing command 2fe93920, slot 2fd688a4, dsp 000a01e8[01e8]
Jul  7 17:24:11 hpalin kernel:  failing command because of reset, slot 2fd68520, cmnd 2fe936a0
Jul  7 17:24:11 hpalin kernel:  failing command because of reset, slot 2fd6864c, cmnd 2fe93420
Jul  7 17:24:11 hpalin kernel:  failing command because of reset, slot 2fd68778, cmnd 2fe93ce0
Jul  7 17:24:11 hpalin kernel:  failing command because of reset, slot 2fd688a4, cmnd 2fe93920
Jul  7 17:24:12 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO BSY DATA_IN
Jul  7 17:24:47 hpalin kernel: scsi1: Bus Reset detected, executing command 2fe93920, slot 2fd688a4, dsp 000a01e8[01e8]
Jul  7 17:24:11 hpalin kernel:  failing command because of reset, slot 2fd68520, cmnd 2fe936a0
Jul  7 17:24:11 hpalin kernel:  failing command because of reset, slot 2fd6864c, cmnd 2fe93420
Jul  7 17:24:11 hpalin kernel:  failing command because of reset, slot 2fd68778, cmnd 2fe93ce0
Jul  7 17:24:11 hpalin kernel:  failing command because of reset, slot 2fd688a4, cmnd 2fe93920
Jul  7 17:24:12 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO BSY DATA_IN
Jul  7 17:24:12 hpalin kernel: scsi1: Bus Reset detected, executing command 2fe936a0, slot 2fd688a4, dsp 000a01e8[01e8]
Jul  7 17:24:12 hpalin kernel:  failing command because of reset, slot 2fd68520, cmnd 2fe93920
Jul  7 17:24:12 hpalin kernel:  failing command because of reset, slot 2fd6864c, cmnd 2fe93ce0
Jul  7 17:24:12 hpalin kernel:  failing command because of reset, slot 2fd68778, cmnd 2fe93420
Jul  7 17:24:12 hpalin kernel:  failing command because of reset, slot 2fd688a4, cmnd 2fe936a0
Jul  7 17:24:13 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO BSY DATA_IN
Jul  7 17:24:13 hpalin kernel: scsi1: Bus Reset detected, executing command 2fe93920, slot 2fd688a4, dsp 000a01e8[01e8]
Jul  7 17:24:13 hpalin kernel:  failing command because of reset, slot 2fd68520, cmnd 2fe936a0
Jul  7 17:24:13 hpalin kernel:  failing command because of reset, slot 2fd6864c, cmnd 2fe93420
Jul  7 17:24:13 hpalin kernel:  failing command because of reset, slot 2fd68778, cmnd 2fe93ce0
Jul  7 17:24:13 hpalin kernel:  failing command because of reset, slot 2fd688a4, cmnd 2fe93920
Jul  7 17:24:14 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO BSY DATA_IN
[snip]
Jul  7 17:30:13 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO BSY DATA_IN
Jul  7 17:30:13 hpalin kernel: scsi1: Bus Reset detected, executing command 2fe93920, slot 2fd688a4, dsp 000a01e8[01e8]
Jul  7 17:30:13 hpalin kernel:  failing command because of reset, slot 2fd68520, cmnd 2fe936a0
Jul  7 17:30:13 hpalin kernel:  failing command because of reset, slot 2fd6864c, cmnd 2fe93420
Jul  7 17:30:13 hpalin kernel:  failing command because of reset, slot 2fd68778, cmnd 2fe93ce0
Jul  7 17:30:13 hpalin kernel:  failing command because of reset, slot 2fd688a4, cmnd 2fe93920
Jul  7 17:30:14 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO BSY DATA_IN
Jul  7 17:30:14 hpalin kernel: scsi1: Bus Reset detected, executing command 2fe936a0, slot 2fd688a4, dsp 000a01e8[01e8]
Jul  7 17:30:14 hpalin kernel:  failing command because of reset, slot 2fd68520, cmnd 2fe93920
Jul  7 17:30:14 hpalin kernel:  failing command because of reset, slot 2fd6864c, cmnd 2fe93ce0
Jul  7 17:30:14 hpalin kernel:  failing command because of reset, slot 2fd68778, cmnd 2fe93420
Jul  7 17:30:14 hpalin kernel:  failing command because of reset, slot 2fd688a4, cmnd 2fe936a0
<end>

and seems to finaly panic (but I tried first to reboot?)

Any idea?

TIA,
	Joel

PS: with previous kernel I read just:
[snip]
May 28 00:26:07 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
May 28 00:26:07 hpalin kernel: scsi1: Bus Reset detected, executing command 226c8320, slot 2fe988a4, dsp 000a01e8[01e8]
May 28 00:26:07 hpalin kernel:  failing command because of reset, slot 2fe98520, cmnd 2fe2b060
May 28 00:26:07 hpalin kernel:  failing command because of reset, slot 2fe9864c, cmnd 2fe2b8a0
May 28 00:26:07 hpalin kernel:  failing command because of reset, slot 2fe98778, cmnd 2fe2ba00
May 28 00:26:07 hpalin kernel:  failing command because of reset, slot 2fe988a4, cmnd 226c8320
[snip]

from time to time but wasn't looping; and this also on a brotherhood arch: d380.
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Xref: news.gmane.org gmane.linux.ports.parisc:23787

Can someone with a PA7200 please boot test this patch? I was reading
some docs which lead me to believe that PA7200 will suppress traps on
loads to gr0 too.

If not, you'll find out pretty quick when you're boot craps out. :)

Cheers,
	Kyle M.

Index: arch/parisc/Kconfig
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/Kconfig,v
retrieving revision 1.48
diff -u -d -p -r1.48 Kconfig
--- arch/parisc/Kconfig	6 Jul 2006 12:21:25 -0000	1.48
+++ arch/parisc/Kconfig	7 Jul 2006 17:09:40 -0000
@@ -127,7 +127,7 @@ config PA11
 
 config PREFETCH
 	def_bool y
-	depends on PA8X00
+	depends on PA8X00 || PA7200
 
 config 64BIT
 	bool "64-bit kernel"
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Xref: news.gmane.org gmane.linux.ports.parisc:23788

Hello,

Because of this resource_size_t change in this new 2.6.18-rc1:
include/linux/types.h
#ifdef CONFIG_RESOURCES_64BIT
typedef u64 resource_size_t;
#else
typedef u32 resource_size_t;
#endif

and related resource structure:
include/linux/ioport.h
struct resource {
        resource_size_t start;
        resource_size_t end;
        const char *name;
        unsigned long flags;
        struct resource *parent, *sibling, *child;
};

(btw, as start and end are actualy addresses, I would find more relevant =
to
use resource_addr_t as new typedef ;-?)

some printk() warning appears:
# grep resource_size_t  /var/logs/k-2.6.18-rc1-pa1-c110-t
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/arch/parisc/kernel/drivers.c:837: wa=
rning:
format '%lx' expects type 'long unsigned int', but argument 4 has type
'resource_size_t'
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/drivers/net/lasi_82596.c:1545: warni=
ng:
format '%lx' expects type 'long unsigned int', but argument 3 has type
'resource_size_t'
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/drivers/net/lasi_82596.c:1550: warni=
ng:
format '%lx' expects type 'long unsigned int', but argument 2 has type
'resource_size_t'
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/drivers/parisc/ccio-dma.c:1402: warn=
ing:
format '%08lx' expects type 'long unsigned int', but argument 3 has type
'resource_size_t'
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/drivers/parisc/ccio-dma.c:1402: warn=
ing:
format '%08lx' expects type 'long unsigned int', but argument 4 has type
'resource_size_t'
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/drivers/parisc/ccio-dma.c:1554: warn=
ing:
format '%lx' expects type 'long unsigned int', but argument 3 has type
'resource_size_t'
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/drivers/parisc/asp.c:85: warning: fo=
rmat
'%lx' expects type 'long unsigned int', but argument 4 has type 'resource=
_size_t'
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/drivers/parisc/eisa.c:318: warning: =
format
'%08lx' expects type 'long unsigned int', but argument 3 has type
'resource_size_t'
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/drivers/parisc/eisa_enumerator.c:101=
:
warning: format '%lx' expects type 'long unsigned int', but argument 2 ha=
s
type 'resource_size_t'
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/drivers/parisc/eisa_enumerator.c:101=
:
warning: format '%lx' expects type 'long unsigned int', but argument 3 ha=
s
type 'resource_size_t'
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/drivers/parisc/eisa_enumerator.c:191=
:
warning: format '%lx' expects type 'long unsigned int', but argument 2 ha=
s
type 'resource_size_t'
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/drivers/parisc/eisa_enumerator.c:191=
:
warning: format '%lx' expects type 'long unsigned int', but argument 3 ha=
s
type 'resource_size_t'
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/drivers/parport/parport_gsc.c:363:
warning: format '%lx' expects type 'long unsigned int', but argument 2 ha=
s
type 'resource_size_t'
/Debian-apt/SRC/linux-2.6.18-rc1-pa1/drivers/serial/8250_gsc.c:45: warnin=
g:
format '%lx' expects type 'long unsigned int', but argument 2 has type
'resource_size_t'

Any idea?

Thanks,
    Joel=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous de=
venez aujourd'hui Scarlet One grace a un client existant de Scarlet, vous=
 recevez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite su=
r http://www.clubscarlet.be

_______________________________________________
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Subject: [parisc-linux] Uninterruptible sleep
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  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND

  17958 dave      16   0     0    0    0 D  0.0  0.0   0:00.00 Process_5.exe
  18055 dave      15   0     0    0    0 D  0.0  0.0   0:00.02 Process_6.exe

Anybody got any ideas how processes can end up sleeping forever?  The
above two processes have been sleeping for more than a day.  This is
a 32-bit kernel 2.6.17-rc3-pa3.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Randolph Chung <randolph@tausq.org>
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John David Anglin wrote:
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
> 
>   17958 dave      16   0     0    0    0 D  0.0  0.0   0:00.00 Process_5.exe
>   18055 dave      15   0     0    0    0 D  0.0  0.0   0:00.02 Process_6.exe
> 
> Anybody got any ideas how processes can end up sleeping forever?  The
> above two processes have been sleeping for more than a day.  This is
> a 32-bit kernel 2.6.17-rc3-pa3.

can you try doing a sysrq-t and see where they are stuck? This is most
easily done on a serial console by sending a break, and then 't'. If you
are telneting to a GSP console you can escape out to the telnet prompt
and type "send break".

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: Re: [parisc-linux] Uninterruptible sleep
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> John David Anglin wrote:
> >   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
> > 
> >   17958 dave      16   0     0    0    0 D  0.0  0.0   0:00.00 Process_5.exe
> >   18055 dave      15   0     0    0    0 D  0.0  0.0   0:00.02 Process_6.exe
> > 
> > Anybody got any ideas how processes can end up sleeping forever?  The
> > above two processes have been sleeping for more than a day.  This is
> > a 32-bit kernel 2.6.17-rc3-pa3.
> 
> can you try doing a sysrq-t and see where they are stuck? This is most
> easily done on a serial console by sending a break, and then 't'. If you
> are telneting to a GSP console you can escape out to the telnet prompt
> and type "send break".

These were left over from the libjava testsuite and I subsequently tried
to kill them.  I don't have a terminal connection to these processes.
So, all I could do is attach to the process with gdb or strace.

I've rebooted the system so these two are lost but it probably will happen
again.  Something changed in the libjava process support and we are getting
testsuite errors again.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hello parisc-linux,

Randolph Chung wrote:
>>>gcc cvs head newer than 2005-07-05 with TLS turned on.
>>
>>Just to be sure: is it well 2005?
>>if yes latest gcc-4.1 would be good enough (if rebuild with previous binutils)?
> 
> 
> July 2005 sounds correct. Yes, it has been merged for some time. Make
> sure you build gcc with the correct binutils, and that gcc is configured
> to enable TLS.

I have check to <http://buildd.debian.org/build.php?arch=hppa&pkg=gcc-4.1>

and afaik debian gcc-4.1 release >= 4.1.1-6 should be ok
(iirc no gcc configure option to build it with tls support but a check if used binutils supports it)

[snip]
bzip2: missing
binutils: already installed (2.17-1 >= 2.16.1cvs20051214 is satisfied)
binutils-hppa64: missing
[snip]

(still need to check if this pb:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-May/029185.html>
is not any more in 4.1.1, i will advise?)

> See the build script Carlos referenced for appropriate
> configure parameters.
> 
> randolph
Many thanks,
	Joel
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Subject: Re: [parisc-linux] HPPA NPTL Support committed to libc-ports,	help
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Date: Sat, 15 Jul 2006 21:49:11 +0800
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> You will need:
> binutils head cvs newer than 2006-05-24.
> gcc cvs head newer than 2005-07-05 with TLS turned on.
> libc-ports cvs head newer than 2006-07-14
> glibc cvs head to match libc-ports.

FWIW, I'm seeing the following FAILs with gcc head built with binutils 
head (from yesterday)

                 === gcc Summary ===

# of expected passes            38513
# of unexpected failures        6
# of unexpected successes       1
# of expected failures          80
# of untested testcases         28
# of unsupported tests          359


FAIL: gcc.c-torture/compile/20001226-1.c  -O2  (test for excess errors)
FAIL: gcc.c-torture/compile/20001226-1.c  -O3 -fomit-frame-pointer 
(test for excess errors)
FAIL: gcc.c-torture/compile/20001226-1.c  -O3 -g  (test for excess errors)
FAIL: gcc.c-torture/compile/20001226-1.c  -Os  (test for excess errors)
FAIL: gcc.c-torture/execute/builtin-bitops-1.c execution,  -O3 
-fomit-frame-pointer -funroll-loops
FAIL: gcc.c-torture/execute/builtin-bitops-1.c execution,  -O3 
-fomit-frame-pointer -funroll-all-loops -finline-functions

glibc built and running make check now..

randolph
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Subject: Re: [parisc-linux] HPPA NPTL Support committed to libc-ports,   help
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> FAIL: gcc.c-torture/compile/20001226-1.c  -O2  (test for excess errors)
> FAIL: gcc.c-torture/compile/20001226-1.c  -O3 -fomit-frame-pointer 
> (test for excess errors)
> FAIL: gcc.c-torture/compile/20001226-1.c  -O3 -g  (test for excess errors)
> FAIL: gcc.c-torture/compile/20001226-1.c  -Os  (test for excess errors)

GCC is slower than it used to be...

> FAIL: gcc.c-torture/execute/builtin-bitops-1.c execution,  -O3 
> -fomit-frame-pointer -funroll-loops
> FAIL: gcc.c-torture/execute/builtin-bitops-1.c execution,  -O3 
> -fomit-frame-pointer -funroll-all-loops -finline-functions

This is a known regression.  See
<http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26244>.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] HPPA NPTL Support committed to libc-ports,
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parisc-linux,

I've committed a first cut NPTL port for hppa to libc-ports.
Please help build and test the port!

You will need:
binutils head cvs newer than 2006-05-24.
gcc cvs head newer than 2005-07-05 with TLS turned on.
libc-ports cvs head newer than 2006-07-14
glibc cvs head to match libc-ports.

I don't have a recipe for building this yet, but it should be coming next.
If someone wants to adapt the following file, that would be great:
http://cvs.parisc-linux.org/build-tools/build-tls-tools?rev=1.7&view=markup

In essence:
- Build binutils
- Install binutils
- Build gcc with tls on, and using previous binutils (i.e. set your PATH)
- Install gcc locally.
- Build glibc with --enable-addons=ports,nptl (Set your PATH to new
gcc/binutils)
- Run make, make -k check.

Start looking at failures :)

Cheers,
Carlos.
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] NPTL glibc patch.
Date: Fri, 14 Jul 2006 11:30:42 -0400
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parisc-linux,

This is the only patch required to get hppa nptl building.
This patch adds the TLS reloc numbersr to elf.h in glibc.
It works around a bug I haven't found in our data initialization.
It also fixes a missing macro in upstream.

Cheers,
Carlos.

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Xref: news.gmane.org gmane.linux.ports.parisc:23797

parisc-linux,

A quick warning, if your kernel headers file unistd.h contain "#define
PIC" then remove this line. It will cause all sorts of havoc when
building glibc. It won't be immediately visible when building, and
infact ld.so can compile quite happily and run with mixed pic non-pic
code.

However, when it comes time to doing real work with executables,
things go wrong. There are various TLS related tests which fail
immediately :)

This is corrected in parisc-linux cvs, but for example I have special
headers setup on my development box, and this bit me a while back (and
again recently when I copied the wrong and old headers).

Cheers,
Carlos.
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> > > FAIL: gcc.c-torture/execute/builtin-bitops-1.c execution,  -O3
> > > -fomit-frame-pointer -funroll-loops
> > > FAIL: gcc.c-torture/execute/builtin-bitops-1.c execution,  -O3
> > > -fomit-frame-pointer -funroll-all-loops -finline-functions
> >
> > This is a known regression.  See
> > <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26244>.
> 
> I don't quite understand what you are testing here?

The tests compare the results from various builtin functions
against that generated by rather simple implementations compiled
with various options.

We are failing at least two tests at -O3.  For example, we incorrectly
calculate the parity of long longs when bit 31 is 1.  The bit is
counted twice (the builtin code generates the correct result).  It's
quite hard to follow what's happening due to the loop unrolling.

I've spent some time looking at this but I haven't fully identified
where things go wrong.  It's somewhere in the rtl dumps posted with
the simplified testcase.  The problem was exposed by changes to loop.
However, the test code works correctly when compiled without inlining.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 7/15/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> The tests compare the results from various builtin functions
> against that generated by rather simple implementations compiled
> with various options.
>
> We are failing at least two tests at -O3.  For example, we incorrectly
> calculate the parity of long longs when bit 31 is 1.  The bit is
> counted twice (the builtin code generates the correct result).  It's
> quite hard to follow what's happening due to the loop unrolling.
>
> I've spent some time looking at this but I haven't fully identified
> where things go wrong.  It's somewhere in the rtl dumps posted with
> the simplified testcase.  The problem was exposed by changes to loop.
> However, the test code works correctly when compiled without inlining.

OK.

That CRC calculation failure which was in glibc is now gone after I
updated to GCC head as of a month ago. I know that's not a very
usefull problem report :)

Cheers,
Carlos.
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Carlos,

This patch is needed to work around a compilation failure with ustat.c
when using kernel headers produced from the output of "make
headers_install".

The problem is that bits/ustat.h includes the definition of struct
ustat.  However, sys/types.h eventually winds up pulling in
linux/types.h which also defines struct ustat.  Since this definition
forms part of the kernel ABI, the kernel header is the correct place to
define this.

Ubuntu and Fedora are now using these headers.  Debian will be shortly.
I beleive that Gentoo either has or is about to move to them.

tks,
Jeff Bailey

2006-07-16  Jeff Bailey  <jbailey@ubuntu.com>

	* sysdeps/unix/sysv/linux/hppa/bits/ustat.h: New file.

--- /dev/null	2006-07-13 14:56:30.000000000 -0400
+++ sysdeps/unix/sysv/linux/hppa/bits/ustat.h	2006-07-16 11:42:52.000000000 -0400
@@ -0,0 +1,34 @@
+/* Copyright (C) 1997, 2002, 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _SYS_USTAT_H
+# error "Never include <bits/ustat.h> directly; use <sys/ustat.h> instead."
+#endif
+
+#include <sys/types.h>
+
+#if 0
+/* On hppa, sys/types.h pulls in linux/types.h which defines this */
+struct ustat
+  {
+    __daddr_t f_tfree;		/* Number of free blocks.  */
+    __ino_t f_tinode;		/* Number of free inodes.  */
+    char f_fname[6];
+    char f_fpack[6];
+  };
+#endif


-- 
I do not agree with a word you say, but I will defend to the death your
right to say it. 
 - Voltaire
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On 7/16/06, Mike Frysinger <vapier@gentoo.org> wrote:
> On Saturday 15 July 2006 18:26, Carlos O'Donell wrote:
> > A quick warning, if your kernel headers file unistd.h contain "#define
> > PIC" then remove this line. It will cause all sorts of havoc when
> > building glibc. It won't be immediately visible when building, and
> > infact ld.so can compile quite happily and run with mixed pic non-pic
> > code.
>
> i dont use debian, but i assume your headers were trying to work with the fact
> that it does 'extern int errno' which can break in nasty ways when errno.h
> hasnt also been included ?

No, this was just dumb code I comitted years ago without understanding
what I was doing :)

c.
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Subject: [parisc-linux] My a500 reported a bug during gsp reset.
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Xref: news.gmane.org gmane.linux.ports.parisc:23802

parisc,

I reset the GSP on my A500 during a heavy-load situation while the
A500 was building glibc. I noticed the following on the console:

Debug: sleeping function called from invalid context at mm/slab.c:2096
in_atomic():1, irqs_disabled():1
Backtrace:
          k+0x18/0x28
 [<0000000010146950>] __might_sleep+0x110/0x128
 [<000000001019ae70>] kmem_cache_alloc+0x110/0x118
 [<0000000010114c88>] show_stack+0x80/0xf0
 [<0000000010114af0>] dump_stack+0x18/0x28
 [<0000000010186750>] __report_bad_irq+0x50/0x118
 [<0000000010186904>] note_interrupt+0xac/0x160
 [<0000000010185398>] __do_IRQ+0x368/0x498
 [<0000000010116c7c>] do_cpu_irq_mask+0xc4/0x118
 [<0000000010107074>] intr_return+0x0/0x14

Backtrace:
 [<0000000010114af0>] dump_stack+0x18/0x28
 [<0000000010186750>] __report_bad_irq+0x50/0x118
 [<0000000010186904>] note_interrupt+0xac/0x160
 [<0000000010185398>] __do_IRQ+0x368/0x498
 [<0000000010116c7c>] do_cpu_irq_mask+0xc4/0x118
 [<0000000010107074>] intr_return+0x0/0x14
kernel/irq/handle.c:126:
spin_lock(kernel/irq/handle.c:000000001068a2a8) already3

handlers:
[<00000000106bd8e0>] (interrupt_stack+0x298e0/0x3fae0)
Disabling IRQ #69
kernel/irq/handle.c:169:
spin_unlock(kernel/irq/handle.c:000000001068a2a8) not ld
---

It's a bit garbled from the serial console I had open at the moment.
The box *did not* crash.

Any clue why this bug is there?
This kernel is 2.6.13-rc3-pa0, so I should probably upgrade, and
attempt to reproduce.

Cheers,
Carlos.
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Subject: [parisc-linux] My a500 reported a bug during gsp reset (Good dump)
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Xref: news.gmane.org gmane.linux.ports.parisc:23803

Here is the clean dump from logs:
---
irq 69: nobody cared (try booting with the "irqpoll" option)
Debug: sleeping function called from invalid context at mm/slab.c:2096
in_atomic():1, irqs_disabled():1
Backtrace:
 [<0000000010114af0>] dump_stack+0x18/0x28
 [<0000000010146950>] __might_sleep+0x110/0x128
 [<000000001019ae70>] kmem_cache_alloc+0x110/0x118
 [<0000000010114c88>] show_stack+0x80/0xf0
 [<0000000010114af0>] dump_stack+0x18/0x28
 [<0000000010186750>] __report_bad_irq+0x50/0x118
 [<0000000010186904>] note_interrupt+0xac/0x160
 [<0000000010185398>] __do_IRQ+0x368/0x498
 [<0000000010116c7c>] do_cpu_irq_mask+0xc4/0x118
 [<0000000010107074>] intr_return+0x0/0x14

Backtrace:
 [<0000000010114af0>] dump_stack+0x18/0x28
 [<0000000010186750>] __report_bad_irq+0x50/0x118
 [<0000000010186904>] note_interrupt+0xac/0x160
 [<0000000010185398>] __do_IRQ+0x368/0x498
 [<0000000010116c7c>] do_cpu_irq_mask+0xc4/0x118
 [<0000000010107074>] intr_return+0x0/0x14
kernel/irq/handle.c:126:
spin_lock(kernel/irq/handle.c:000000001068a2a8) already locked by
kernel/irq/handle.c/173

handlers:
[<00000000106bd8e0>] (interrupt_stack+0x298e0/0x3fae0)
Disabling IRQ #69
kernel/irq/handle.c:169:
spin_unlock(kernel/irq/handle.c:000000001068a2a8) not locked
---

Cheers,
Carlos.
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Subject: Re: [parisc-linux] My a500 reported a bug during gsp reset (Good dump)
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On Mon, 2006-07-17 at 17:19 -0400, Carlos O'Donell wrote:
> Here is the clean dump from logs:
> ---
> irq 69: nobody cared (try booting with the "irqpoll" option)
> Debug: sleeping function called from invalid context at mm/slab.c:2096
> in_atomic():1, irqs_disabled():1
> Backtrace:
>  [<0000000010114af0>] dump_stack+0x18/0x28
>  [<0000000010146950>] __might_sleep+0x110/0x128
>  [<000000001019ae70>] kmem_cache_alloc+0x110/0x118
>  [<0000000010114c88>] show_stack+0x80/0xf0
>  [<0000000010114af0>] dump_stack+0x18/0x28
>  [<0000000010186750>] __report_bad_irq+0x50/0x118
>  [<0000000010186904>] note_interrupt+0xac/0x160
>  [<0000000010185398>] __do_IRQ+0x368/0x498
>  [<0000000010116c7c>] do_cpu_irq_mask+0xc4/0x118
>  [<0000000010107074>] intr_return+0x0/0x14

That's a bug in parisc show_stack ... it has a kmalloc GFP_KERNEL in it.

> Backtrace:
>  [<0000000010114af0>] dump_stack+0x18/0x28
>  [<0000000010186750>] __report_bad_irq+0x50/0x118
>  [<0000000010186904>] note_interrupt+0xac/0x160
>  [<0000000010185398>] __do_IRQ+0x368/0x498
>  [<0000000010116c7c>] do_cpu_irq_mask+0xc4/0x118
>  [<0000000010107074>] intr_return+0x0/0x14
> kernel/irq/handle.c:126:
> spin_lock(kernel/irq/handle.c:000000001068a2a8) already locked by
> kernel/irq/handle.c/173
> 
> handlers:
> [<00000000106bd8e0>] (interrupt_stack+0x298e0/0x3fae0)
> Disabling IRQ #69
> kernel/irq/handle.c:169:
> spin_unlock(kernel/irq/handle.c:000000001068a2a8) not locked

What's on IRQ69?

James


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On 7/17/06, James Bottomley <James.Bottomley@steeleye.com> wrote:
>
> What's on IRQ69?
>

           CPU0
 64:   10891024             CPU  timer
 65:      78367  IO-SAPIC-level  eth0
 66:         33  IO-SAPIC-level  sym53c8xx
 67:      94746  IO-SAPIC-level  sym53c8xx, sym53c8xx
 68:      14573  IO-SAPIC-level  sym53c8xx
 69:     200051  IO-SAPIC-level  serial

c.
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Subject: [parisc-linux] A warning about NPTL pthreaddefs.h
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Randolph,

A warning that the pthreaddefs.h might be horribly wrong. I remember a
long while ago adding padding the structures so they matched the size
of the linuxthread types (atleast the lock position).

This padding is not correct, we would need to pull into our tree the
static mutex initializers so they are correctly sized aswell.

If you look at the build logs there are warnings about this.

I'm trying a build with the lock padding removed, but it still fails
all over the place, but atleast this time there are no apparent
deadlocks!!! Yay!

Cheers,
Carlos.
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> A warning that the pthreaddefs.h might be horribly wrong. I remember a
> long while ago adding padding the structures so they matched the size
> of the linuxthread types (atleast the lock position).
> 
> This padding is not correct, we would need to pull into our tree the
> static mutex initializers so they are correctly sized aswell.

fwiw,i don't think we need to worry about making the structs the same as 
linuxthreads (if that is even possible...), after all you cannot run a 
linuxthreads binary against nptl libs or vice versa...

randolph
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On 7/17/06, Randolph Chung <randolph@tausq.org> wrote:
> > A warning that the pthreaddefs.h might be horribly wrong. I remember a
> > long while ago adding padding the structures so they matched the size
> > of the linuxthread types (atleast the lock position).
> >
> > This padding is not correct, we would need to pull into our tree the
> > static mutex initializers so they are correctly sized aswell.
>
> fwiw,i don't think we need to worry about making the structs the same as
> linuxthreads (if that is even possible...), after all you cannot run a
> linuxthreads binary against nptl libs or vice versa...

Yes, yes you are. Ulrich's first post of NPTL 1.0 says:
---
The thread library is designed to be binary compatible with the old
LinuxThreads implementation.  This compatibility obviously has some
limitations.  In places where the LinuxThreads implementation diverged
from the POSIX standard incompatibilities exist.  Users of the old
library have been warned from day one that this day will come and code
which added work-arounds for the POSIX non-compliance better be
prepared to remove that code.  The visible changes of the library
include:
---

And he goes on to list things which are not compatible.

Wether or not PARISC can do this is another question. It might not be
possible due to our lock[4] and LDCW linuxthreads implementation.

c.
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On 7/17/06, Randolph Chung <randolph@tausq.org> wrote:
> > A warning that the pthreaddefs.h might be horribly wrong. I remember a
> > long while ago adding padding the structures so they matched the size
> > of the linuxthread types (atleast the lock position).
> >
> > This padding is not correct, we would need to pull into our tree the
> > static mutex initializers so they are correctly sized aswell.
>
> fwiw,i don't think we need to worry about making the structs the same as
> linuxthreads (if that is even possible...), after all you cannot run a
> linuxthreads binary against nptl libs or vice versa...

Regardless we still bomb out on a lot of the tests :)

c.
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randolph,

I think that ports/sysdeps/hppa/nptl/pthread_* implementations have
the atomic swap parameters in the wrong order...

The files have "lock, 0, 1" but it should be "lock, 1, 0" since it's
"addr, newval, oldval".
They are attempts to acquire a lock.

Whaddaya think?

c.
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: [parisc-linux] Looking at vfprintf.c and alloca.
Date: Mon, 17 Jul 2006 23:40:22 -0400
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I was looking at our tst-printfsz failures in glibc, and I noticed
some very cute code in vfprintf.c. The code uses alloca to create a
specs structure, and then using certain know addresses decides if the
stack grows down or up.

Does this look right? Anyone care to review if this actually works
with a newer GCC on hppa?

   1601     size_t nspecs = 0;
   1602     size_t nspecs_max = 32;     /* A more or less arbitrary
start value.  */
   1603     struct printf_spec *specs
   1604       = alloca (nspecs_max * sizeof (struct printf_spec));

...
   1636     for (f = lead_str_end; *f != L_('\0'); f = specs[nspecs++].next_fmt)
   1637       {
   1638         if (nspecs >= nspecs_max)
   1639           {
   1640             /* Extend the array of format specifiers.  */
   1641             struct printf_spec *old = specs;
   1642
   1643             nspecs_max *= 2;
   1644             specs = alloca (nspecs_max * sizeof (struct printf_spec));
   1645
   1646             if (specs == &old[nspecs])
   1647               /* Stack grows up, OLD was the last thing allocated;
   1648                  extend it.  */
   1649               nspecs_max += nspecs_max / 2;
   1650             else
   1651               {
   1652                 /* Copy the old array's elements to the new space.  */
   1653                 memcpy (specs, old, nspecs * sizeof (struct
printf_spec));
   1654                 if (old == &specs[nspecs])
   1655                   /* Stack grows down, OLD was just below the new
   1656                      SPECS.  We can use that space when the new space
   1657                      runs out.  */
   1658                   nspecs_max += nspecs_max / 2;
   1659               }
   1660           }

I didn't expect alloca's behaviour to be so explicitly defined.

Cheers,
Carlos.
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Subject: [parisc-linux] Re: Duplicate ustat structure
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On Sun, Jul 16, 2006 at 06:39:15PM +0200, Andreas Schwab wrote:

> > The problem is that bits/ustat.h includes the definition of struct
> > ustat.  However, sys/types.h eventually winds up pulling in
> > linux/types.h which also defines struct ustat.
> 
> <sys/types.h> should not include <linux/types.h> in the first place.

It seems like it ought to now that the kernel is exporting a set of
headers that are intended to be used by userspace.  struct ustat is
defined in linux/types.h.

But in general, this is the path by which it gets included:

include/sys/types.h includes thread_db.h

nptl_db/thread_db.h includes procfs.h

ports/sysdeps/unix/sysv/linux/hppa/sys/procfs.h includes asm/elf.h for
elf_gregset_t and elf_fpregset_t

asm-parisc/elf.h includes asm/ptrace.h unnecessarily, but relies on it
to pull in linux/types for __u32

asm-parisc/ptrace.h includes linux/types.h for __u64

So the following patch would work instead, but I think this type of fix
used to be right when the kernel folks didn't want to provide userspace
headers.  Now that they are doing so, I think it's more correct for us
to use them.

2006-07-16  Jeff Bailey  <jbailey@ubuntu.com>

	* sysdeps/unix/sysv/linux/hppa/sys/procfs.h: Don't include
	elf.h.
	Declare elf_greg_t, elf_gregset_t, elf_fpreg_t,
	and elf_fpregset_t.

Index: sysdeps/unix/sysv/linux/hppa/sys/procfs.h
===================================================================
RCS file: /cvs/glibc/ports/sysdeps/unix/sysv/linux/hppa/sys/procfs.h,v
retrieving revision 1.2
diff -u -p -r1.2 procfs.h
--- sysdeps/unix/sysv/linux/hppa/sys/procfs.h	6 Jul 2001 04:56:16 -0000	1.2
+++ sysdeps/unix/sysv/linux/hppa/sys/procfs.h	16 Jul 2006 16:57:39 -0000
@@ -34,10 +34,18 @@
 #include <sys/types.h>
 #include <sys/ucontext.h>
 #include <sys/user.h>
-#include <asm/elf.h>
 
 __BEGIN_DECLS
 
+typedef unsigned long elf_greg_t;
+#define ELF_NGREG 80    /* We only need 64 at present, but leave space
+			                              for expansion. */
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+#define ELF_NFPREG 32
+typedef double elf_fpreg_t;
+typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+
 struct elf_siginfo
   {
     int si_signo;			/* Signal number.  */


-- 
I do not agree with a word you say, but I will defend to the death your
right to say it. 
 - Voltaire
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On Tue, Jul 18, 2006 at 08:19:12AM +0800, Randolph Chung wrote:
> >A warning that the pthreaddefs.h might be horribly wrong. I remember a
> >long while ago adding padding the structures so they matched the size
> >of the linuxthread types (atleast the lock position).
> >
> >This padding is not correct, we would need to pull into our tree the
> >static mutex initializers so they are correctly sized aswell.
> 
> fwiw,i don't think we need to worry about making the structs the same as 
> linuxthreads (if that is even possible...), after all you cannot run a 
> linuxthreads binary against nptl libs or vice versa...

On other platforms, LT binaries generally run on the NPTL libs.  If we
break this, then there'll be an interesting upgrade problem for the
distros tosolve that they haven't needed to do on other archs.

Tks,
Jeff Bailey

-- 
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right to say it. 
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On 7/18/06, Jeff Bailey <jbailey@raspberryginger.com> wrote:
> On other platforms, LT binaries generally run on the NPTL libs.  If we
> break this, then there'll be an interesting upgrade problem for the
> distros tosolve that they haven't needed to do on other archs.

It's technically possible... maybe...

1. Use 1 for locked, and 0 for unlocked in our integer sized locks (to match LT)
2. Add padding in the form of a union, aligned to 16.
3. Select the aligned lock word, but use CAS instead of LDCW.

This would give the same semantics as LT, and probably preserve binary
compatiblity. The only performance loss is calculated the aligned
word.

c.
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Subject: [parisc-linux] tst-audit.h missing?
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Carlos,

I don't see sysdeps/hppa/tst-audit.h in my checkout and a grep doesn't
show me anything that might define pltenter, pltexit & friends.  Without
this, elf/tst-auditmod1.c won't compile.

This seems to do the trick:

2006-07-16  Jeff Bailey  <jbailey@ubuntu.com>

	* sysdeps/hppa/tst-audit.h: New file.

--- /dev/null	2006-05-22 07:45:19.000000000 -0400
+++ sysdeps/hppa/tst-audit.h	2006-07-16 13:40:30.000000000 -0400
@@ -0,0 +1,26 @@
+/* Definitions for testing PLT entry/exit auditing.  HPPA version.
+
+   Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#define pltenter la_hppa_gnu_pltenter
+#define pltexit la_hppa_gnu_pltexit
+#define La_regs La_hppa_regs
+#define La_retval La_hppa_retval
+#define int_retval lrv_r28


-- 
I do not agree with a word you say, but I will defend to the death your
right to say it. 
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Carlos O'Donell wrote:
> I was looking at our tst-printfsz failures in glibc, and I noticed
> some very cute code in vfprintf.c. The code uses alloca to create a
> specs structure, and then using certain know addresses decides if the
> stack grows down or up.
> 
> Does this look right? Anyone care to review if this actually works
> with a newer GCC on hppa?

I tried this with both old (gcc-3.[34]) and new gcc (gcc-4.[01]) and i 
don't think this works....

tausq@riot:~$ cat alloca.c
#include <alloca.h>
#include <stdio.h>

int main(int argc, char **argv)
{
         int *old;
         int *ptr = alloca(100 * sizeof(int));

         old = ptr;

         ptr = alloca(100 * sizeof(int));

         printf("ptr = %p\nold = %p\n&old[100] = %p\n", ptr, old, 
&old[100]);
         return 0;
}
tausq@riot:~$ gcc-4.1 -Wall -o alloca alloca.c; ./alloca
ptr = 0xc04ca590
old = 0xc04ca3d0
&old[100] = 0xc04ca560

randolph
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On Tue July 18 2006 10:51, Randolph Chung wrote:
> Carlos O'Donell wrote:
> > I was looking at our tst-printfsz failures in glibc, and I noticed
> > some very cute code in vfprintf.c. The code uses alloca to create a
> > specs structure, and then using certain know addresses decides if the
> > stack grows down or up.
> > 
> > Does this look right? Anyone care to review if this actually works
> > with a newer GCC on hppa?
> 
> I tried this with both old (gcc-3.[34]) and new gcc (gcc-4.[01]) and i 
> don't think this works....
> 
> tausq@riot:~$ cat alloca.c
> #include <alloca.h>
> #include <stdio.h>
> 
> int main(int argc, char **argv)
> {
>          int *old;
>          int *ptr = alloca(100 * sizeof(int));
> 
>          old = ptr;
> 
>          ptr = alloca(100 * sizeof(int));
> 
>          printf("ptr = %p\nold = %p\n&old[100] = %p\n", ptr, old, 
> &old[100]);
>          return 0;
> }
> tausq@riot:~$ gcc-4.1 -Wall -o alloca alloca.c; ./alloca
> ptr = 0xc04ca590
> old = 0xc04ca3d0
> &old[100] = 0xc04ca560
> 

For the case of gcc-4.2, stack-grows down...

ptr = 0xbfea1fc0
old = 0xbfea2160
&old[100] = 0xbfea22f0

In both the cases (up/down) &old[100] has an offset of
400 bytes (correct).

There is some compiler generated, machine dependent,
optimization dependent, space between "ptr" and "old[100]"
Most likely the "guaranteed stack alignment" thingy.

Mike
> randolph
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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On 7/18/06, Randolph Chung <randolph@tausq.org> wrote:
> I tried this with both old (gcc-3.[34]) and new gcc (gcc-4.[01]) and i
> don't think this works....
>
> tausq@riot:~$ gcc-4.1 -Wall -o alloca alloca.c; ./alloca
> ptr = 0xc04ca590
> old = 0xc04ca3d0
> &old[100] = 0xc04ca560

I thought so, if this code is ever execute it will be wrong.

I think our tst-printfsz failure is related to this code trying to
expand the specs and getting the wrong answer.

Michael, want to write a patch to fix this for glibc? :)
I'll support you on libc-alpha!

In glibc I don't think the code should be a runtime check at all,
there are STACK_GROWS_UP macros that should be used.

c.
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On 7/16/06, Jeff Bailey <jbailey@raspberryginger.com> wrote:
> Carlos,
>
> I don't see sysdeps/hppa/tst-audit.h in my checkout and a grep doesn't
> show me anything that might define pltenter, pltexit & friends.  Without
> this, elf/tst-auditmod1.c won't compile.
>
> This seems to do the trick:
>
> 2006-07-16  Jeff Bailey  <jbailey@ubuntu.com>
>
>         * sysdeps/hppa/tst-audit.h: New file.

Thanks! I'll check this into CVS.

I have tst-audit.h in my development tree, along with a first cut
implementation for dl-trampoline.S (dl_profile).

Expect the auditing tests to fail until I check this into CVS.

Cheersr,
Carlos.
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On 7/16/06, Jeff Bailey <jbailey@raspberryginger.com> wrote:
> On Sun, Jul 16, 2006 at 06:39:15PM +0200, Andreas Schwab wrote:
>
> > > The problem is that bits/ustat.h includes the definition of struct
> > > ustat.  However, sys/types.h eventually winds up pulling in
> > > linux/types.h which also defines struct ustat.
> >
> > <sys/types.h> should not include <linux/types.h> in the first place.
>
> It seems like it ought to now that the kernel is exporting a set of
> headers that are intended to be used by userspace.  struct ustat is
> defined in linux/types.h.

In which case this patch should go upstream to libc-alpha, where the
generic version of ustat.h should be changed.

Cheers,
Carlos.
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On Saturday 15 July 2006 18:26, Carlos O'Donell wrote:
> A quick warning, if your kernel headers file unistd.h contain "#define
> PIC" then remove this line. It will cause all sorts of havoc when
> building glibc. It won't be immediately visible when building, and
> infact ld.so can compile quite happily and run with mixed pic non-pic
> code.

i dont use debian, but i assume your headers were trying to work with the f=
act=20
that it does 'extern int errno' which can break in nasty ways when errno.h=
=20
hasnt also been included ?

in Gentoo, we patch our kernel headers like so:
=2Dextern int errno;
+#include <errno.h>
=2Dmike

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On Tue July 18 2006 14:30, Carlos O'Donell wrote:
> On 7/18/06, Randolph Chung <randolph@tausq.org> wrote:
> > I tried this with both old (gcc-3.[34]) and new gcc (gcc-4.[01]) and i
> > don't think this works....
> >
> > tausq@riot:~$ gcc-4.1 -Wall -o alloca alloca.c; ./alloca
> > ptr = 0xc04ca590
> > old = 0xc04ca3d0
> > &old[100] = 0xc04ca560
> 
> I thought so, if this code is ever execute it will be wrong.
>

I did not look at the original code - just the posted example.

If the library code is depending on an expected difference between
the old and new stack position (other than direction) 
- it will be in trouble.

> 
> I think our tst-printfsz failure is related to this code trying to
> expand the specs and getting the wrong answer.
> 
> Michael, want to write a patch to fix this for glibc? :)
> I'll support you on libc-alpha!
> 

It just so happened that I was compiling glibc and during this exchange
vfprintf.c scrolled by...
I think it set some sort of record for "number of warning messages"

So it needs work.  Probably would be better to give someone else a chance.

Getting -finstrument-functions and the related __builtin_{frame,return}_address()
to work is taking all of my time right now.

> In glibc I don't think the code should be a runtime check at all,
> there are STACK_GROWS_UP macros that should be used.
> 

Sounds reasonable to me.

> c.
Mike
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On Tue, Jul 18, 2006 at 03:30:40PM -0400, Carlos O'Donell wrote:
> On 7/18/06, Randolph Chung <randolph@tausq.org> wrote:
> >tausq@riot:~$ gcc-4.1 -Wall -o alloca alloca.c; ./alloca
> >ptr = 0xc04ca590
> >old = 0xc04ca3d0
> >&old[100] = 0xc04ca560
> 
> I thought so, if this code is ever execute it will be wrong.
> 
> I think our tst-printfsz failure is related to this code trying to
> expand the specs and getting the wrong answer.
> 
> Michael, want to write a patch to fix this for glibc? :)
> I'll support you on libc-alpha!
> 
> In glibc I don't think the code should be a runtime check at all,
> there are STACK_GROWS_UP macros that should be used.

How about just using min(ptr, old)?  ;-)
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On 7/18/06, Matthew Wilcox <matthew@wil.cx> wrote:
> > In glibc I don't think the code should be a runtime check at all,
> > there are STACK_GROWS_UP macros that should be used.
>
> How about just using min(ptr, old)?  ;-)

You're almost there Matthew, just a little more, and I'll be able to
list your name in the libc-ports ChangeLogs :-)

c.
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I fixed these spinlock failures by correcting the atomic operation
parameter order.

Update CVS!

Next on my list are the mutex failures.

c.
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On Tue July 18 2006 22:04, Randolph Chung wrote:
> > What doesn't work?  ptr - old = 0x1c0 = 7 * 64.  The preferred
> > stack boundary is 64 bytes.  6 * 64 = 384 bytes.  That's too
> > small for the requested allocation.  &old[100] - old = 0x190 = 400.
> > So, the results printed appear correct.
> 
> gcc is completely correct, I meant to agree with your other email, that
> is glibc is totally bogus ;P
>

Since I have exchanged off-list bits and pieces that are related to the
series 4 compilers, let me try to explain the observations to date.
 
Joel has invested months of time, looking for the cause of 64-bit-smp
hangs under heavy load.

He will post when he is ready, I say nothing here other than he is
still working hard on the problem.

I have an interest in getting -finstrument-functions to work to my
own standard of satisfaction.  I will post to the appropriate lists
when I am certain I have all of the "cockpit error" out of my findings.

</end disclaimers>

I will be very careful to avoid the word: "mis-compiled" since it does
not apply to the following;

Given any series 3 compiler...
Given any C source code...
Define the assembler code generated as "expected output"...
Define the logical function(s) performed by that code 
as the "expected result".

The test standard of "expected output" is only an indicator;
not an error in itself.

We have found, Joel in the functions using spinlock macros;
Myself in the functions of the gcc provided crt* files;

That not only is the series 4 compiler not generating the
expected output (only an indicator) but it is not generating
the expected result (functionally equivalent code).

To date, neither of us have found a "wrong code" error in
the compilers.

What we have found are "source based" problems, in general,
the series 4 compilers require additional annotations in the
source to generate functionally equivalent code.

Without sufficient, proper, annotations; the series 4 compiler
will (correctly) throw away things the author of the source
expected to always be part of the "expected result".

The above is not our "single point of failure".  We have both
discovered good, old fashioned, programming errors in addition
to the above.

Which brings me to the subject of this thread, the vfprintf.c
is a "good, old fashioned, programming error" if the code expects
the stack space generated by alloca to be contiguous with any
other stack object.  That is true for either series compiler,
on any machine, regardless of stack direction growth.
(The man page for alloca could also use some help.  Its text
ignores the effect of compiler stack padding.)

> randolph
Mike
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> Which brings me to the subject of this thread, the vfprintf.c
> is a "good, old fashioned, programming error" if the code expects
> the stack space generated by alloca to be contiguous with any
> other stack object.  That is true for either series compiler,
> on any machine, regardless of stack direction growth.
> (The man page for alloca could also use some help.  Its text
> ignores the effect of compiler stack padding.)

I agree that the linux man page doesn't accurately describe the
behavior of alloca on hppa when it is inlined by gcc:

	The  alloca() function allocates size bytes of space in
	the stack frame of the caller.

The HP man page is more accurate:

	Allocates space from the stack of the caller for
	a block of at least size bytes, ...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: Looking at vfprintf.c and alloca.
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>    1646             if (specs == &old[nspecs])

>    1654                 if (old == &specs[nspecs])

These two tests seem totally bogus to me.  They don't take
into account the padding needed to maintain the preferred
stack boundary.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: Looking at vfprintf.c and alloca.
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> I tried this with both old (gcc-3.[34]) and new gcc (gcc-4.[01]) and i 
> don't think this works....
> 
> tausq@riot:~$ cat alloca.c
> #include <alloca.h>
> #include <stdio.h>
> 
> int main(int argc, char **argv)
> {
>          int *old;
>          int *ptr = alloca(100 * sizeof(int));
> 
>          old = ptr;
> 
>          ptr = alloca(100 * sizeof(int));
> 
>          printf("ptr = %p\nold = %p\n&old[100] = %p\n", ptr, old, 
> &old[100]);
>          return 0;
> }
> tausq@riot:~$ gcc-4.1 -Wall -o alloca alloca.c; ./alloca
> ptr = 0xc04ca590
> old = 0xc04ca3d0
> &old[100] = 0xc04ca560

What doesn't work?  ptr - old = 0x1c0 = 7 * 64.  The preferred
stack boundary is 64 bytes.  6 * 64 = 384 bytes.  That's too
small for the requested allocation.  &old[100] - old = 0x190 = 400.
So, the results printed appear correct.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:23830

Hello all,

Kyle McMartin wrote:
--- snip ---
> 
> James' fix only applied to UP builds. :)
> 
Continuing investigation on this:

BUG: soft lockup detected on CPU#0!
Backtrace:
  [<0000000010112e70>] dump_stack+0x18/0x28
  [<0000000010176088>] softlockup_tick+0x120/0x160
  [<00000000101533b0>] run_local_timers+0x28/0x38
  [<0000000010153c48>] update_process_times+0x58/0xd8
  [<000000001011d898>] smp_do_timer+0x70/0x80
  [<0000000010114094>] timer_interrupt+0xd4/0x1e0
  [<0000000010176204>] handle_IRQ_event+0x74/0xd0
  [<0000000010176318>] __do_IRQ+0xb8/0x270
  [<0000000010114a6c>] do_cpu_irq_mask+0x11c/0x1e8
  [<0000000010104074>] intr_return+0x0/0x1c

smp n4k pb.

I figure out that with the kernel 2.6.17-pa3 compiled with gcc-3.3 this system run my stress test during 8 full days without pb.
Otoh when the same src were compiled with gcc-4.x the system vanished (panicing?) eracticaly after between  1 to 3 tree days of test.

So either gcc-3.3 produced the right stuff or hiden a bug?
So I managed to produce *.s files for gcc-3.3 and gcc-4.1 to attempt comparison.

But this Backtrace didn't show me any cpu status (even after I updated the firmware of pdc and gsp to their latest releases and 
tried the latest mingo's patch for lock validator?). Even thought Mike recalled me this old report: 
<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-March/028603.html>
  IAOQ[0]: _read_lock+0x18/0x30
  IAOQ[1]: _read_lock+0x8/0x30
  RP(r2): send_group_sig_info+0x3c/0xb0

I so used this as starting point of investigation:
--- snip ---
/*
  * This is the entry point for "process-wide" signals.
  * They will go to an appropriate thread in the thread group.
  */
int
send_group_sig_info(int sig, struct siginfo *info, struct task_struct *p)
{
         int ret;
         read_lock(&tasklist_lock);
         ret = group_send_sig_info(sig, info, p);
         read_unlock(&tasklist_lock);
         return ret;
}
--- snip ---

./include/linux/spinlock.h:
--- snip ---
#define read_lock(lock)                      _read_lock(lock)

/*
  * We inline the unlock functions in the nondebug case:
  */
#if defined(CONFIG_DEBUG_SPINLOCK) || defined(CONFIG_PREEMPT) || !defined(CONFIG_SMP)
# define spin_unlock(lock)              _spin_unlock(lock)
# define read_unlock(lock)              _read_unlock(lock)
# define write_unlock(lock)             _write_unlock(lock)
#else
# define spin_unlock(lock)              __raw_spin_unlock(&(lock)->raw_lock)
# define read_unlock(lock)              __raw_read_unlock(&(lock)->raw_lock)
# define write_unlock(lock)             __raw_write_unlock(&(lock)->raw_lock)
#endif

--- snip ---

Q1: according to this comment why don't we 'inline' read_lock() as read_unlock?

Lets have a look to the pre-compiled (.i) file:
precompiled:
--- snip ---
int
send_group_sig_info(int sig, struct siginfo *info, struct task_struct *p)
{
  int ret;
  _read_lock(&tasklist_lock);
  ret = group_send_sig_info(sig, info, p);
  __raw_read_unlock(&(&tasklist_lock)->raw_lock);
  return ret;
}
--- snip ---
static __inline__ __attribute__((always_inline)) void __raw_read_unlock(raw_rwlock_t *rw)
{
  __raw_spin_lock_flags(&rw->lock, 0);

  rw->counter--;

  __raw_spin_unlock(&rw->lock);
}
--- snip ---
static inline __attribute__((always_inline)) void __raw_spin_lock_flags(raw_spinlock_t *x,
       unsigned long flags)
{
  volatile unsigned int *a;


  __asm__ __volatile__("":::"memory");
  a = ((volatile unsigned int *)x);

  while (({ unsigned __ret; __asm__ __volatile__("ldcw,co" " 0(%1),%0" : "=r" (__ret) : "r" (a)); __ret; }) == 0)
   __asm__("; flag_0");
   while (*a == 0)
    if (flags & 0x00000001) {
     __asm__ __volatile__("ssm %0,%%r0\n" : : "i" (0x00000001) : "memory" );
     __asm__ __volatile__("":::"memory");
     __asm__ __volatile__("rsm %0,%%r0\n" : : "i" (0x00000001) : "memory" );
    } else
     __asm__ __volatile__("; cpu_relax\n\tnop\n\tnop\n" : : );

  __asm__ __volatile__("":::"memory");
}
--- snip ---

to be sure am i on the right place and make some asm highlighting:
  # diff -Nau spinlock.h.Orig spinlock.h
--- spinlock.h.Orig     2006-07-20 07:54:26.000000000 +0200
+++ spinlock.h  2006-07-21 19:37:16.000000000 +0200
@@ -20,8 +20,10 @@
  {
         volatile unsigned int *a;

-       mb();
+/*     mb(); */
+       __asm__ __volatile__("; raw_spin_lock_flags_in":::"memory");
         a = __ldcw_align(x);
+
         while (__ldcw(a) == 0)
                 while (*a == 0)
                         if (flags & PSW_SM_I) {
@@ -30,16 +32,19 @@
                                 local_irq_disable();
                         } else
                                 cpu_relax();
-       mb();
+/*     mb(); */
+       __asm__ __volatile__("; raw_spin_lock_flags_out":::"memory");
  }

  static inline void __raw_spin_unlock(raw_spinlock_t *x)
  {
         volatile unsigned int *a;
-       mb();
+/*     mb(); */
+       __asm__ __volatile__("; raw_spin_unlock_in":::"memory");
         a = __ldcw_align(x);
         *a = 1;
-       mb();
+/*     mb(); */
+       __asm__ __volatile__("; raw_spin_unlock_out":::"memory");
  }

  static inline int __raw_spin_trylock(raw_spinlock_t *x)

--- processor.h.Orig    2006-07-20 07:54:46.000000000 +0200
+++ processor.h 2006-07-20 08:14:30.000000000 +0200
@@ -355,7 +355,11 @@
  }
  #endif

+/*
  #define cpu_relax()    barrier()
+ */
+#define cpu_relax()    __asm__ __volatile__("; cpu_relax\n\tnop\n\tnop\n" : : )
+

  #endif /* __ASSEMBLY__ */


which obvioulsy produced different s files:
  # diff -y SGSI_gcc33.s.ban_noFlag0 SGSI_gcc41.s.ban_noFlag1
         .section        .text.send_group_sig_info,"ax",@progb           .section        .text.send_group_sig_info,"ax",@progb
         .align 8                                                        .align 8
.globl send_group_sig_info                                      .globl send_group_sig_info
         .type   send_group_sig_info, @function                          .type   send_group_sig_info, @function
send_group_sig_info:                                            send_group_sig_info:
         .PROC                                                           .PROC
         .CALLINFO FRAME=144,CALLS,SAVE_RP,ENTRY_GR=6          |         .CALLINFO FRAME=160,CALLS,SAVE_RP,ENTRY_GR=7
         .ENTRY                                                          .ENTRY
                                                               >         addil LT'tasklist_lock,%r27
         std %r2,-16(%r30)                                               std %r2,-16(%r30)
         std,ma %r7,144(%r30)                                  |         std,ma %r8,160(%r30)
         std %r6,-136(%r30)                                    |         copy %r24,%r8
         std %r5,-128(%r30)                                    <
         std %r4,-120(%r30)                                    <
         copy %r27,%r4                                         <
         ldo -48(%r30),%r29                                              ldo -48(%r30),%r29
         copy %r25,%r6                                         |         std %r7,-152(%r30)
         extrd,s %r26,63,32,%r5                                |         copy %r25,%r7
         addil LT'tasklist_lock,%r27                           |         std %r6,-144(%r30)
         ldd RT'tasklist_lock(%r1),%r1                         |         extrd,s %r26,63,32,%r6
         copy %r1,%r26                                         |         std %r5,-136(%r30)
                                                               >         ldd RT'tasklist_lock(%r1),%r5
                                                               >         copy %r5,%r26
                                                               >         std %r4,-128(%r30)
         b,l _read_lock,%r2                                              b,l _read_lock,%r2
         copy %r24,%r7                                         |         copy %r27,%r4
         copy %r6,%r25                                         <
         copy %r7,%r24                                         <
         copy %r4,%r27                                                   copy %r4,%r27
                                                               >         copy %r6,%r26
                                                               >         copy %r27,%r4
                                                               >         copy %r7,%r25
         ldo -48(%r30),%r29                                              ldo -48(%r30),%r29
         b,l group_send_sig_info,%r2                                     b,l group_send_sig_info,%r2
         copy %r5,%r26                                         |         copy %r8,%r24
         addil LT'tasklist_lock,%r4                            |         copy %r4,%r27
         ldd RT'tasklist_lock(%r1),%r20                        |         copy %r28,%r19
#APP                                                            #APP
         ; raw_spin_lock_flags_in                                        ; raw_spin_lock_flags_in
         ldcw,co 0(%r20),%r19                                  <
#NO_APP                                                         #NO_APP
         cmpib,<>,n 0,%r19,.L895                               | .L944:
.L890:                                                        | #APP
         ldw 0(%r20),%r19                                      |         ldcw,co 0(%r5),%r28
         cmpib,<>,n 0,%r19,.L897                               | #NO_APP
.L889:                                                        |         cmpib,<>,n 0,%r28,.L946
                                                               > .L945:
                                                               >         ldw 0(%r5),%r28
                                                               >         cmpb,*<> %r0,%r28,.L944
                                                               >         nop
#APP                                                            #APP
         ; cpu_relax                                                     ; cpu_relax
         nop                                                             nop
         nop                                                             nop

#NO_APP                                                         #NO_APP
         ldw 0(%r20),%r19                                      |         b,n .L945
         cmpib,= 0,%r19,.L889                                  | .L946:
         nop                                                   <
.L897:                                                        <
#APP                                                          <
         ldcw,co 0(%r20),%r19                                  <
#NO_APP                                                       <
         cmpib,= 0,%r19,.L890                                  <
         nop                                                   <
.L895:                                                        <
#APP                                                            #APP
         ; raw_spin_lock_flags_out                                       ; raw_spin_lock_flags_out
#NO_APP                                                         #NO_APP
         ldw 4(%r20),%r19                                      |         addil LT'tasklist_lock,%r27
         ldo -1(%r19),%r19                                     |         ldd RT'tasklist_lock(%r1),%r31
         stw %r19,4(%r20)                                      |         ldw 4(%r31),%r28
                                                               >         ldo -1(%r28),%r28
                                                               >         stw %r28,4(%r31)
#APP                                                            #APP
         ; raw_spin_unlock_in                                            ; raw_spin_unlock_in
#NO_APP                                                         #NO_APP
         ldi 1,%r19                                            |         ldi 1,%r28
         stw %r19,0(%r20)                                      |         stw %r28,0(%r5)
#APP                                                            #APP
         ; raw_spin_unlock_out                                           ; raw_spin_unlock_out
#NO_APP                                                         #NO_APP
         ldd -120(%r30),%r4                                    |         copy %r19,%r28
         ldd -128(%r30),%r5                                    |         ldd -176(%r30),%r2
         ldd -160(%r30),%r2                                    |         ldd -152(%r30),%r7
         ldd -136(%r30),%r6                                    |         ldd -144(%r30),%r6
                                                               >         ldd -136(%r30),%r5
                                                               >         ldd -128(%r30),%r4
         bve (%r2)                                                       bve (%r2)
         ldd,mb -144(%r30),%r7                                 |         ldd,mb -160(%r30),%r8
         .EXIT                                                           .EXIT
         .PROCEND                                                        .PROCEND
         .size   send_group_sig_info, .-send_group_sig_info              .size   send_group_sig_info, .-send_group_sig_info

And here are a lot of questions:
	Q2: some diff in routine like 2 times ldcw with gcc-3 and only one with gcc-4 (may be ok?)

	Q3: a 64bit comparison (cmpb,*<> %r0,%r28,.L944) introduced with gcc-4?

	Q4: imho the most important: with 2 gcc where is the couple of ssm/rsm that jejb introduced in his patch:

<http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2005-October/036211.html>
--- linux-2.6/include/asm-parisc/spinlock.h	2005/09/14 14:42:11	1.16
+++ linux-2.6/include/asm-parisc/spinlock.h	2005/10/20 16:07:04	1.17
@@ -11,18 +11,25 @@
  	return *a == 0;
  }

-#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
+#define __raw_spin_lock(lock) __raw_spin_lock_flags(lock, 0)
  #define __raw_spin_unlock_wait(x) \
  		do { cpu_relax(); } while (__raw_spin_is_locked(x))

-static inline void __raw_spin_lock(raw_spinlock_t *x)
+static inline void __raw_spin_lock_flags(raw_spinlock_t *x,
+					 unsigned long flags)
  {
  	volatile unsigned int *a;

  	mb();
  	a = __ldcw_align(x);
  	while (__ldcw(a) == 0)
-		while (*a == 0);
+		while (*a == 0)
+			if (flags & PSW_SM_I) {
+				local_irq_enable();
+				cpu_relax();
+				local_irq_disable();
+			} else
+				cpu_relax();
  	mb();
  }

?

Mike, feel free to complete this summary if something looks like bad, not complete or not clear ;-)

Thanks for help,
	Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:23831

On Fri July 21 2006 15:05, Joel Soete wrote:
> Hello all,
> 
- - - snip
> 
> Mike, feel free to complete this summary if something 
> looks like bad, not complete or not clear ;-) 
> 

Nothing to add.  That is a good summary Joel.

We know that routine fails, 
we know its different, 
we can't find the problem.

> Thanks for help,
> 	Joel
Mike
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> What doesn't work?  ptr - old = 0x1c0 = 7 * 64.  The preferred
> stack boundary is 64 bytes.  6 * 64 = 384 bytes.  That's too
> small for the requested allocation.  &old[100] - old = 0x190 = 400.
> So, the results printed appear correct.

gcc is completely correct, I meant to agree with your other email, that
is glibc is totally bogus ;P

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: Re: [parisc-linux] Re: Looking at vfprintf.c and alloca.
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> For the case of gcc-4.2, stack-grows down...

Is this for hppa?  The stack should never grow downward.

> ptr = 0xbfea1fc0
> old = 0xbfea2160
> &old[100] = 0xbfea22f0
> 
> In both the cases (up/down) &old[100] has an offset of
> 400 bytes (correct).

You have to take into account the preferred stack boundary
into account when determining the delta between alloca allocations.

The HP runtime specifies 64 bytes (i.e., cache aligned) for
the preferred stack boundary in the 32-bit runtime.  The stack
boundary is 8 bytes.  This is the minimum alignment that the
hardware needs except for the infamous ldcw instruction.  The
preferred stack boundary could have been 8 bytes.  However,
changing it now would be an ABI change...

HP probably recognized that 64-byte alignment didn't help performance
much, so they relaxed the 64-bit alignment to 16 bytes.  In the 64-bit
runtime, some types are 16-byte aligned.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> And here are a lot of questions:
>         Q2: some diff in routine like 2 times ldcw with gcc-3 and only one with gcc-4 (may be ok?)
>

Analyze the code. Is it doing functionally the same thing?

I assert that yes, it's doing exactly the same thing. The older gcc
has unwrapped one of the ldcw's, and thus has two copies of the inner
loop in the assembly. The code on the right does exactly the same
thing, but in less instructions. GCC has gotten better.

There isn't a missing lock, we only needed one lock, the older gcc was
doing a poorer job of code generation.

There may be other parts of the kernel that have problems, so keep looking!

Cheers,
Carlos.
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>         Q4: imho the most important: with 2 gcc where is the couple of ssm/rsm that jejb introduced in his patch:

The *most* important piece of imformation is the pre-compiled source.
You *must* determine that both paths of the if/else are different,
because if they are the same, then GCC is right to remove one of the
paths, and unconditionally call cpu_relax.

Where is the pre-compiled source to prove that the paths aren't identical?

Remember to work towards a solution!

Cheers,
Carlos.
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] The problem on the PA8800 is all in the data-cache.
Date: Sat, 22 Jul 2006 13:50:40 -0400
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To: parisc-linux <parisc-linux@lists.parisc-linux.org>,
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Xref: news.gmane.org gmane.linux.ports.parisc:23836

James,

After spending ~4 hours of debugging yesterday evening, between
Thibaut, Dave, and myself, we firmly believe the PA8800 problems are
data cache issues.

Let me describe the test environment, the test, and the results/conclusions:

1. Thibaut's magnum, PA8800. 1 cpu enabled, 2 cores, L1/L2 enabled. etc.
2. Kernel was 2.6.17, with a revision identifier that is not in my notes.
3. A statically compiled sshd, with *everything* disabled.
    This required LIBS="-ldl" and LD_FLAGS="-static" to achieve.

We copied the statically compiled sshd to the PA8800, loaded sshd via
gdb. Passed the following parameters "-D -p 2222", in gdb we used "set
follow-fork-mode child", and started the process.

>>From an external box we initiate an ssh connection to the remote
PA8800 and waite for gdb to catch the SIGSEGV in the sshd child. We
did this over, and over, and over to look for patterns.

Pattern 1:

Using strace, we looked at the syscalls, and determined that the child
sshd process *always* dies after an fd socket read.

Pattern 2:

The set of registers involved is small, roughly r4, r19, r3, r21, r28.
These registers are primarily used by GCC to reference local data on
the stack. r3 is the frame marker and was frequently involved in the
faults.

Pattern 3:

Called functions that fail deal with allocating and touching new
memory. Deaths are primarily in malloc, xmalloc, memset,
packet_read_seqnr, buffer_put_bignum2_ret. Infact we died more often
than not in malloc.

Results:

Initially we thought it was an icache issue, then we realized that
PLABEL's are just data, and when we removed the PLABEL's from the
equation (complete static compile) we stopped seeing invalid insns. We
believe the truth here is that the PLABEL data is corrupted, and thus
r19 and the ip are bogus, so the failure appears to be icache related.
In thruth it was only corrupted PLABELs.

With a fully static sshd, the PLABEL's are not present, and the faults
are *all* memory loads and stores to the stack.

Conclusions:

a) We think it is not an icache issue, but infact a dcache issue.

Often it appears as if a register was corrupted, but the truth is that
the ldw loaded bogus data into a register.

b) One time, on a later comparison in gdb, the register and data in
memory did not equal. I stress that we only saw this situation once.

c) We have often seen the failure with the frame marker on a cacheline
boundary, for example 0xc0278100 (e.g. 256 bytes).

It is my hope that these patterns will trigger someone to devise a
plan for fixing this. If you have any questions about our methods, or
reproducing this, you can easily talk to Thibaut and we can probably
setup access to the test sshd binary.

Grant expressed worry that "Pattern 1" was indicative of a dma sync
problem with the network socket read.

Cheers,
Carlos.
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From: Jeff Bailey <jbailey@raspberryginger.com>
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Subject: [parisc-linux] Re: NPTL fixes.
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(restoring cc:'s dropped by accident)

On Sat, Jul 22, 2006 at 01:00:58PM -0400, Carlos O'Donell wrote:
> On 7/22/06, Carlos O'Donell <carlos@systemhalted.org> wrote:
> >> If yes, I'll make it a priority next week so that I can get some initial
> >> bootstrapping stuff done.
> >
> >It's not high-prio, I don't care about the ABI break, I care primarily
> >about reducing the number of failures. After the failures are reduced
> >we *might* be able to tackle ABI compatibility... but again I doubt
> >this, since it would require similar patches to Linuxthreads which
> >were rejected before and will be rejected again. Not to mention it
> >causes weird headaches with all the other arches that put
> >uninitialized locks in .bss.
> 
> Is an alternative that we bump the .so number in the thread library?

Yes an no.  That solves the problem from an upstream perspective, but it
will make upgrading to NPTL for current parisc users hard.  The problem
is that we don't version libpthreads itself, we only version libc6.  The
packaging system doesn't then provide any hints that the version of
libpthreads that the packages are looking for doesn't exist anymore.

If you're going to bump the version number of pthreads, I'd recommend
taking this time to do a break on glibc as well and get any changes done
that you might need to.

Tks,
Jeff Bailey

-- 
I do not agree with a word you say, but I will defend to the death your
right to say it. 
 - Voltaire
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On Sat July 22 2006 12:23, Carlos O'Donell wrote:
> > And here are a lot of questions:
> >         Q2: some diff in routine like 2 times ldcw with gcc-3 and only one with gcc-4 (may be ok?)
> >
> 
> Analyze the code. Is it doing functionally the same thing?
> 
> I assert that yes, it's doing exactly the same thing. The older gcc
> has unwrapped one of the ldcw's, and thus has two copies of the inner
> loop in the assembly. The code on the right does exactly the same
> thing, but in less instructions. GCC has gotten better.
> 
> There isn't a missing lock, we only needed one lock, the older gcc was
> doing a poorer job of code generation.
> 

OK - will go with that theory.

> There may be other parts of the kernel that have problems, so keep looking!
> 

Now that portion of the work is easy (not quick, easy) to reproduce.

Pick a fairly recent kernel (I think Joel has used both 2.6.16 & 2.6.17);
Use gcc-3.3 to build 64-bit-smp;
Use gcc-4.1 to build 64-bit-smp;

Pick a machine with two or more processors (Joel has PA8000 & PA8700);
Pick yourself a never-ending script that keeps all processors busy;

Run the gcc-4.1 built kernel; observe that machine locks up after some
time period ranging from hours to a few days;

Boot the gcc-3.3 built kernel; observe that machine runs for weeks.

Yes, there is something getting compiled differently than intended.

Q) Is the following an expected difference?

send_group_sig_info:                              send_group_sig_info:
    .PROC                                             .PROC
    .CALLINFO FRAME=144,CALLS,SAVE_RP,ENTRY_GR=6 |    .CALLINFO FRAME=160,CALLS,SAVE_RP,ENTRY_GR=7

Mike
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Mysterious hangs with parisc (a
	send_group_sig_info() analysis)
Date: Sat, 22 Jul 2006 22:10:04 +0000
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Cc: Kyle McMartin <kyle@mcmartin.ca>,
 James.Bottomley@steeleye.com,
 parisc-linux@lists.parisc-linux.org,
 John David Anglin <dave@hiauly1.hia.nrc.ca>
To: "Carlos O'Donell" <carlos@systemhalted.org>
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Carlos O'Donell wrote:
>>         Q4: imho the most important: with 2 gcc where is the couple of 
>> ssm/rsm that jejb introduced in his patch:
> 
> 
> The *most* important piece of imformation is the pre-compiled source.
    if (flags & 0x00000001) {
     __asm__ __volatile__("ssm %0,%%r0\n" : : "i" (0x00000001) : "memory" );
     __asm__ __volatile__("":::"memory");
     __asm__ __volatile__("rsm %0,%%r0\n" : : "i" (0x00000001) : "memory" );
    } else
     __asm__ __volatile__("":::"memory");

> You *must* determine that both paths of the if/else are different,
> because if they are the same, then GCC is right to remove one of the
> paths, and unconditionally call cpu_relax.
> 
and flags is a parameter of __raw_spin_lock_flags():
static inline __attribute__((always_inline)) void __raw_spin_lock_flags(raw_spinlock_t *x,
       unsigned long flags)

So i didn't see how gcc could know at compile time that (flags & 0x00000001) was always false?

> Where is the pre-compiled source to prove that the paths aren't identical?
> 
Well I don't think that pre-compile stuff would help more because doesn't inlining stuff like as #define would?

That said I think to have found what you want to learn me: isn't it exactely this inlining into:
static __inline__ __attribute__((always_inline)) void __raw_read_unlock(raw_rwlock_t *rw)
{
  __raw_spin_lock_flags(&rw->lock, 0);

--- snip ---

where obvioulsy (0 & whatelse) == 0 (i.e. false)

Is it well what you expected we found?

> Remember to work towards a solution!
> 
So this:
  IAOQ[0]: _read_lock+0x18/0x30
  IAOQ[1]: _read_lock+0x8/0x30
  RP(r2): send_group_sig_info+0x3c/0x88

was 2.6.14-rc related and not anymore to 2.6.17 and greater?

But I haven't anymore IAOQ report when this system hang now (even TOC doesn't report any usefull info).
So where to start other investigattion?

Thanks,
	Joel

PS: would it make sence to test this nucked hunk
I mean afaik this "__raw_spin_lock_flags(&rw->lock, 0);" comes from this definition:
#define __raw_spin_lock(lock) __raw_spin_lock_flags(lock, 0)

Tbh I am a bit confused by this patch: write some stuff and say don't use it?

> Cheers,
> Carlos.
> 
> 
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From: "Michael S. Zick" <mszick@morethan.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Mysterious hangs with parisc (a
	send_group_sig_info() analysis)
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On Sat July 22 2006 17:10, Joel Soete wrote:
> 
> Carlos O'Donell wrote:
> >>         Q4: imho the most important: with 2 gcc where is the couple of 
> >> ssm/rsm that jejb introduced in his patch:
> > 
> > 
> > The *most* important piece of imformation is the pre-compiled source.
>     if (flags & 0x00000001) {
>      __asm__ __volatile__("ssm %0,%%r0\n" : : "i" (0x00000001) : "memory" );
>      __asm__ __volatile__("":::"memory");
>      __asm__ __volatile__("rsm %0,%%r0\n" : : "i" (0x00000001) : "memory" );
>     } else
>      __asm__ __volatile__("":::"memory");
> 
> > You *must* determine that both paths of the if/else are different,
> > because if they are the same, then GCC is right to remove one of the
> > paths, and unconditionally call cpu_relax.
> > 

Note: That code is the same when either compiler is used;
_But_ as a separate problem...

My reading of the intent of that added code was:

Busy_Loop:
   If (Interrupts are disabled) {
      Enable interrupts;
      Cpu_relax; /* Long enough to recognize pending interrupts */
      Disable interrupts;
   } else {
      Cpu_relax;
   }

And my complaint was a matter of structure...

The assumption here is that the flag bit in an external variable
is always in-sync with the interrupt status bit in the register.

Obviously a false assumption, this routine is an example...

Inside the first if block, the status bit is changed but the external
variable bit is not.

A general purpose, like we don't know what state the interrupts
are in, and we don't want to trust an external flag bit;

Looks like:

Busy_Loop:
   Save current interrupt status to the external variable;
   Enable interrupts; /* a nop if already enabled */
   Cpu_relax; /* Long enough to recognize pending interrupts */
   Restore interrupt status from external variable;

Our redefining Cpu_relax to a pair of nops was for machines that
delay recognizing interrupts for an instruction after changing
the status bit.  We also included an asm comment in Cpu_relax
just in case we wanted to see that it had not gotten optimized away.

Same reason the mb() was redefined as an asm comment that could
be identified by inspection.

Mike
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Subject: Re: [parisc-linux] The problem on the PA8800 is all in the data-cache.
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Xref: news.gmane.org gmane.linux.ports.parisc:23841

Carlos,

I'm observing something totally crazy right now. On the very same
machine we hacked yesterday, exact same setup (same kernel, same
binary, same everything):

i /can't/ start our static sshd anymore. It dies right after a sysctl (!):

898   mmap(NULL, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4000b000
898   getpid()                          = 898
898   rt_sigaction(SIGRTMIN, {0x40c51eba, [], 0}, NULL, 8) = 0
898   rt_sigaction(SIGRT_1, {0x40c51ec2, [TRAP], 0}, NULL, 8) = 0
898   rt_sigaction(SIGRT_2, {0x40c51ea2, [], 0}, NULL, 8) = 0
898   rt_sigprocmask(SIG_BLOCK, [RTMIN], NULL, 8) = 0
898   rt_sigprocmask(SIG_UNBLOCK, [RT_1], NULL, 8) = 0
898   _sysctl({{CTL_KERN, KERN_VERSION}, 2, 0xc00e67d4, 36, (nil), 0}) = 0
898   --- SIGSEGV (Segmentation fault) @ 0 (0) ---
898   +++ killed by SIGSEGV +++

as you can see at that point it hasn't even yet spawned any child. gdb
isn't of much help, as the backtrace is pretty clueless:

(gdb) symbol-file /home/varenet/openssh-4.3p2/sshd
Reading symbols from /home/varenet/openssh-4.3p2/sshd...done.
(gdb) set follow-fork-mode child
(gdb) set args -D -p 2222
(gdb) run
Starting program: /usr/local/test/sbin/sshd -D -p 2222

Program received signal SIGSEGV, Segmentation fault.
0x00000000 in ?? ()
(gdb) bt
#0  0x00000000 in ?? ()
#1  0x40c3a9a0 in ?? ()
Previous frame identical to this frame (corrupt stack?)

finally dmesg shows:

do_page_fault() pid=898 command='sshd' type=6 address=0x00000003

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001011 Not tainted
r00-03  0000000000000000 0000000040c5233c 0000000040c3a9a3 00000000c00e67d4
r04-07  0000000040c5233c 0000000040c51a80 000000004069e830 0000000000000200
r08-11  0000000040c513d4 00000000000000e1 0000000080000001 0000000090000000
r12-15  00000000d0000000 000000000021fd70 00000000001a5800 00000000001a5800
r16-19  000000000004c8c0 00000000c00de698 000000000004c8c0 0000000040c5233c
r20-23  0000000000000000 0000000000000053 0000000000000000 00000000c00e66c8
r24-27  00000000c00e67d4 0000000040c401b2 00000000c00e67d7 00000000001db060
r28-31  0000000040c51a80 0000000000000213 00000000c00e6a40 0000000040c3a9a3
sr0-3   00000000001fa800 0000000000000000 0000000000000000 00000000001fa800
sr4-7   00000000001fa800 00000000001fa800 00000000001fa800 00000000001fa800

The cool thing is that i can /consistently/ reproduce this.

I'm leaving the box powered up, not touching anything until we get a
chance to investigate this a bit more.

Aside that, I /really/ believe that the fact that we can trigger the
bug that easily with some network applications isn't a coincidence.
Grant's hint of a dma think problem shouldn't be overlooked. The
"make" failures could also be I/O related...

HTH

T-Bone

PS: i tried "ssh localhost" with the 'normal' sshd (/usr/sbin/sshd) as
I told you earlier today, it dies as expected with pretty much the
same tombstones that those we've seen yesterday.

Haven't investigated that much more at that point.

Note: you and James can access that machine (provided you remember
your password) and that your ssh key on mkhppa02.esiee.fr is valid. If
there's a problem with any of these, it's easy to fix. If jda wants an
account, it's also easy

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On Sat July 22 2006 20:01, Thibaut VARENE wrote:
> Carlos,
> 
> I'm observing something totally crazy right now. On the very same
> machine we hacked yesterday, exact same setup (same kernel, same
> binary, same everything):
> 
> i /can't/ start our static sshd anymore. It dies right after a sysctl (!):
> 
> I'm leaving the box powered up, not touching anything until we get a
> chance to investigate this a bit more.
> 

Is it still possible to capture the kernel's internal state by
copying /proc/kcore to a file somewhere?

Mike
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On 7/23/06, James Bottomley <James.Bottomley@steeleye.com> wrote:
> Carlos wrote:
> > Grant expressed worry that "Pattern 1" was indicative of a dma sync
> > problem with the network socket read.
>
> I'm still dubious about this one ... even if we agree it's a D cache
> issue, it's definitely a D cache issue affecting program execution (i.e.
> function pointers or call indirection).  The data coming out of the
> network pipe for ssh never finds its way into the execution stream,
> which means it's unlikely to affect these areas.  Additionally, ssh has
> message integrity checks which fail noisily (i.e. the network data is
> verified against a secure hash before it's used).  So, if we had
> incoherent data from the pipe, I would exect to see periodic MIC
> failures, which we don't see.

Actually on some occasion, the sshd would kill the incoming connection
with "bad packet length" and "invalid hash packet" and all sorts of
various nasty error messages. And we made sure that these messages
were sent by the _server_, not the _client_...

My take is that we see that bug so much more on pa8800 because of its
huge cache and thus because we hit cache much more often than on all
other machines...

Still investigating this, i'm about to bring back online my rp3440 ;)

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Cc: Thibaut VARENE <T-Bone@parisc-linux.org>,
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On Mon, 2006-07-24 at 10:32 -0600, Grant Grundler wrote:
> While I agree in general that a PIPT cache won't have aliasing effects.
> ISTR the virtual coherence index (VCI) is part of the "physical address".
> If it's not, I'm confused how CPUs on different sockets remain coherent.
> I expect the VCI is visible across the Mckinley Bus and thus is part
> of the physical address. IOMMU is also pushing out an address that
> has VCI bits in it - so DMA remains coherent with CPU virtual addresses.
> 
> If I've got this right, then we can have aliasing in PIPT cache.
> Willy, can you check the pa8800 ERS and look for "coherence index"
> or similar, related words?

I don't believe the PIPT cache can have a coherence index, otherwise it
would be effectively VIPT (see the virtual index in a form).  A PIPT
cache is fully addressable by the physical address alone.  So, for I/O
we use the CI to evict L1 lines and the simple physaddr (without a CI)
to evict PIPT lines.  Exclusivity means that if we find the line in the
L2 we don't even need to present the physaddr and CI to the L1.
However, verifying this in docs would be a good thing ...

However, here's the kicker ... I think we can get incoherence from clean
aliases in a combined VIPT/PIPT environment.  This is impossible in a
VIPT environment, and something Linux isn't expecting in its cache
management.

The Linux theory of managing inequivalent aliases is that as long as we
ensure that we only ever have one dirty alias, we can never get
corruption (and as long as we flush the aliases before reassigning the
page, we can never get incoherence from clean lines).  However, linux is
perfectly happy to tolerate incoherence on the Kernel/User addresses
provided only one alias is dirty.  We get this in COW breaking (where we
bring in a spurious clean copy of the old page at the kernel VA) and at
other I/O related places.

However, in a combined VIPT/PIPT, there is a nasty scenario to do with
cache eviction.  In general cache lines are selected for eviction (a
process called victim selection) on a LRU basis. For a single cache
level, a clean victim is just discarded, a dirty victim is written back
to main memory. In a cache hierarchy, eviction means the line is written
from the n-1 to the n cache hierarchy.  This gives a scenario where a
clean line is actually rewritten to a lower cache in the hierarchy
rather than being discarded.  If the hierarchy is fully VIPT, this
doesn't matter.

However, if the lower cache is PIPT, it has to do alias combining like
this:  the L1 presents the tag and data to the PIPT L2 (discarding the
virtual index which the PIPT doesn't care about), so the L2 stores this
fully physically indexed and tagged).  Now, assume we have two
inequivalent aliases of the same physical line P at virtual indexes V1
(containing data D1) and V2 (containing data D2).  Even if these are
clean, you get this behaviour:  the L1 selects V1 for eviction and
writes its contents to the L2 at P (which now caches D1).  However, at a
later time the LRU algorithm selects V2 for eviction and writes the line
to the L2 at P (which now caches D2).  If the process later reads V1 for
P, it gets data D2 (an inequivalent alias incoherence of clean lines).
Theoretically, as long as the LRU algorithm is perfect, we should never
get this effect, since the oldest line should be evicted first, and that
should be the one containing the stale data.  However, my bet (which
would require doc verification in the pa8800 ers) is that the LRU isn't
perfect, so there's a tiny window, most likely to be hit on COW
breaking, where the kernel and the user get different data aliases with
the kernel one being only slightly older. If the slightly younger user
alias is selected for eviction first, we get the old kernel data in the
PIPT which is read back in when the user accesses the address again.  

Note: this scenario only works if both lines are clean ... to get the
modified D2, you have to dirty a line and then re-clean it.  i.e. write
it out and then read it back again so fast that it's still in the
imperfect LRU window.  This seems impossible until you consider that
there are lots of operations (mainly around I/O) that will cause cache
flushing of the user alias.  So the final scenario seems to be COW break
to cause the kernel alias, user write, user flush, user read all in the
imperfect LRU window (which would be incredibly rare).

This theory seems to explain all of the behaviour, why we see it so
rarely, and why it seems to happen around forks when I/O is going on in
the system.  Unfortunately it also seems to indicate that the only way
of fixing it would be to have full equivalence.

James


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> This theory seems to explain all of the behaviour, why we see it so
> rarely, and why it seems to happen around forks when I/O is going on in
> the system.  Unfortunately it also seems to indicate that the only way
> of fixing it would be to have full equivalence.

How about disabling L2?  This should test your theory.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] The problem on the PA8800 is all in the data-cache.
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On Tue, 2006-07-25 at 12:13 -0400, John David Anglin wrote:
> How about disabling L2?  This should test your theory.

Kyle's working on it based on Grant's original work ... you need access
to a lot of secret diag registers to do this, though, so it's not easy.

James
 

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On 7/25/06, James Bottomley <James.Bottomley@steeleye.com> wrote:

> This theory seems to explain all of the behaviour, why we see it so
> rarely, and why it seems to happen around forks when I/O is going on in
> the system.  Unfortunately it also seems to indicate that the only way
> of fixing it would be to have full equivalence.

So basically what you explain here should only affect pa8800, and what
we see on other machines is something else, correct?

T-Bone

-- 
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http://www.parisc-linux.org/~varenet/
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On 7/25/06, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> On 7/25/06, James Bottomley <James.Bottomley@steeleye.com> wrote:
>
> > This theory seems to explain all of the behaviour, why we see it so
> > rarely, and why it seems to happen around forks when I/O is going on in
> > the system.  Unfortunately it also seems to indicate that the only way
> > of fixing it would be to have full equivalence.
>
> So basically what you explain here should only affect pa8800, and what
> we see on other machines is something else, correct?

And another quick dump: "rarely" only if we have one socket enabled in
the system. Try to enable both sockets, the system won't even boot...
Might be something else again, though.
Yet, that's probably a clue.

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [parisc-linux] The problem on the PA8800 is all in the data-cache.
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On Tue, Jul 25, 2006 at 11:17:19AM -0500, James Bottomley wrote:
> Kyle's working on it based on Grant's original work ... you need access
> to a lot of secret diag registers to do this, though, so it's not easy.
> 

WTF? Am not.
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Xref: news.gmane.org gmane.linux.ports.parisc:23850

Implement "pid_t vfork(void)" for parisc.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---

Ugh. vfork() me harder.

 Kbuild  |    2 +-
 vfork.S |   31 +++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/usr/klibc/arch/parisc/Kbuild b/usr/klibc/arch/parisc/Kbuild
index d57a873..57ca5c2 100644
--- a/usr/klibc/arch/parisc/Kbuild
+++ b/usr/klibc/arch/parisc/Kbuild
@@ -2,7 +2,7 @@ #
 # klibc files for parisc
 #
 
-klib-y := setjmp.o syscall.o
+klib-y := setjmp.o syscall.o vfork.o
 
 always  := crt0.o
 targets := crt0.o
diff --git a/usr/klibc/arch/parisc/vfork.S b/usr/klibc/arch/parisc/vfork.S
new file mode 100644
index 0000000..97ebc8f
--- /dev/null
+++ b/usr/klibc/arch/parisc/vfork.S
@@ -0,0 +1,31 @@
+/*
+ * arch/parisc/vfork.S, "vfork() me harder. ugh." -- kyle
+ *
+ * %r20 contains the system call number, %rp contains whence we came,
+ * %rp is saved and restored across the syscall, thankfully.
+ *
+ */
+
+	.text
+	.align 64				; cache-width aligned
+	.globl	vfork
+	.type	vfork,@function
+vfork:
+	/* pid_t vfork(void) */
+	ble		0x100(%sr2, %r0)	; jump to gateway page
+	nop
+
+	ldi		-0x1000,%r19		; %r19 = -4096
+	sub		%r0,%ret0,%r22		; %r22 = -%ret0
+	cmpb,>>=,n	%r19,%ret0,1f		; if %ret0 >= -4096UL
+	ldi		-1,%ret0		; nullified on taken forward
+
+	/* store %r22 to errno... */
+	ldil		L%errno,%r1
+	ldo		R%errno(%r1),%r1
+	stw		%r22,0(%r1)
+1:
+	bv		%r0(%rp)		; jump back
+	nop
+
+	.size vfork,.-vfork
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Subject: Re: [parisc-linux] The problem on the PA8800 is all in the data-cache.
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On Sun, Jul 23, 2006 at 10:54:38PM -0400, Thibaut VARENE wrote:
> My take is that we see that bug so much more on pa8800 because of its
> huge cache and thus because we hit cache much more often than on all
> other machines...

I don't think so.  pa8800 has less cache per core than pa8700.  The L2
cache is ignorable for the purposes of this scenario, since it's
transparent to software.
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Subject: [parisc-linux] Fwd: [BUG] 2.6.17 hangs on ppc/ia64/parisc and won't
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Xref: news.gmane.org gmane.linux.ports.parisc:23852

Hi pa-ckers,

Here's what I just sent to lkml

----------

Hi,

I have this very strange bug and i know this is not the kind of bug
report you expect from me. I really have very limited information and
apologize since it doesn't meet the 'standard'.
Below is a brain dump of everything I know so far and will gladly
answer questions.

Quick summary:
The machine dies, and when I reboot it, it is so whacked it won't load
init, whether it's /sbin/init or /bin/sh. Happened on totally
different hw (ppc, ia64, parisc) running totally different workloads.
2.6.16 seems to work fine, and I don't know how to reproduce this bug.
Haven't tried 2.6.18-rc yet.

The long story:
My ppc machine (Pegasos II, 512MB, 1Ghz G4, 40GB PATA, radeon 9200,
reiserfs root disk) hung using 2.6.17-ck1 kernel and debian etch. This
is my main desktop machine and as expected using Xorg 7.1, firefox, a
few remote X apps etc...
After that machine hung I reset it. The boot process was stuck at
Loading INIT. Reset again and tried with init=/bin/sh. It took approx
5 minutes to get the "sh-3.1#" prompt. Then 'ls' would work.But 'ls
-l' would hang, as well as many other simple commands (I don't
remember exactly which i tried but i tried a few). I could kill the
stuck process with SysRQ. Note, all the machines I'm describing here
use LDAP to get regular users credentials, root is local though. To
make sure that the 5 minutes delay wasn't caused by some LDAP lookup
timing out, I tried to boot init=/bin/sh on a similar setup of a
working machine, and the "sh-3.1#" prompt came immediately, so there
is something else going on.

Fortunately, I had a second system partition on the same disk and was
able to boot from it fine (using the kernel that crashed, meaning the
binary apparently wasn't corrupted). Reiserfs utils attempted to
repair the root partition which was (according to those utils) badly
broken. Still, I could chroot into the original root partition, run ls
and
other commandline tools.
Except 'du -sh etc' came up with something like "2.1T". At that point
I knew something was terribly wrong ;P

So I reformatted that partition to ext3 to get rid of one possible
cause of the problem, and built a new 2.6.17-ck1 kernel. That new
setup lasted for less than a day before dying again. At that point I
gave up breaking my main system and considered it safe to get back to
known-working 2.6.16-ish.

At that point I was also thinking I could have bad hw (eg disk).
The following should convince you it's not.

A few days after the PPC machine events, one of my ia64 headless
servers (rx2600, McKinley 900MHz SMP, 4GB RAM, 36GB SCSI), running
debian etch and 2.6.17-pa3 (from the parisc CVS tree, basically
mainline 2.6.17 on ia64), crashed without any output on the console
after a couple weeks uptime. When I rebooted it, guess what, it would
hang calling init. That time, I booted from another partition as well,
and tried to reinstall all 'base' (ie, essential to the system)
packages, including init and friends. It didn't help. The symptoms
were exactly the same; I couldn't recover the system and had to
reinstall it. I don't recall if the root file system was either ext3
or xfs. I'm certain it was not reiserfs.

Finally, most recently (yesterday to be precise), on of my parisc
system (rp3440, pa8800 SMP 800MHz, 4GB RAM, 73GB SCSI) crashed while I
was using it, and again exposed the exact same symptoms. It was
running  debian sid and 2.6.17-rc6-pa3 64bit. It was up for a
few hours. Interestingly, I experienced much longer uptimes with that
very same machine/kernel. The machine was running gdb when it died,
and this time I got a stack dump on the console. I don't totally trust
parisc stack unwinder but here it is anyway:

BUG: soft lockup detected on CPU#1!
Backtrace:
 [<0000000010112aa0>] dump_stack+0x18/0x28
 [<0000000010172558>] softlockup_tick+0x130/0x160
 [<0000000010152630>] run_local_timers+0x28/0x38
 [<0000000010152708>] update_process_times+0xc8/0x128
 [<000000001011d9d8>] smp_do_timer+0x60/0x80
 [<0000000010113a5c>] timer_interrupt+0xec/0x1f0
 [<00000000101726fc>] handle_IRQ_event+0x74/0xf8
 [<0000000010172838>] __do_IRQ+0xb8/0x260
 [<00000000101145f8>] do_cpu_irq_mask+0x130/0x1f8
 [<0000000010104074>] intr_return+0x0/0x1c

BUG: soft lockup detected on CPU#0!
Backtrace:
 [<0000000010112aa0>] dump_stack+0x18/0x28
 [<0000000010172558>] softlockup_tick+0x130/0x160
 [<0000000010152630>] run_local_timers+0x28/0x38
 [<0000000010152708>] update_process_times+0xc8/0x128
 [<000000001011d9d8>] smp_do_timer+0x60/0x80
 [<0000000010113a5c>] timer_interrupt+0xec/0x1f0
 [<00000000101726fc>] handle_IRQ_event+0x74/0xf8
 [<0000000010172838>] __do_IRQ+0xb8/0x260
 [<00000000101145f8>] do_cpu_irq_mask+0x130/0x1f8
 [<0000000010104074>] intr_return+0x0/0x1c
 [<0000000010167708>] hrtimer_run_queues+0x198/0x268
 [<000000001015239c>] run_timer_softirq+0x54/0x2c0
 [<000000001014b8cc>] __do_softirq+0x15c/0x180
 [<000000001010ec14>] do_softirq+0x64/0x70
 [<000000001014ba1c>] irq_exit+0x6c/0x78
 [<0000000010114680>] do_cpu_irq_mask+0x1b8/0x1f8

This bug (so far) never killed our systems as badly as what I'm
describing, so it could be something else. The rp3440 machine was
using an ext3 fs.

I can probably provide configs for the ppc and parisc kernels. But the
ia64 config is gone unfortunately.

So far, here's what I can infer:
- it's not a particular fs' problem (affected reiserfs, ext3fs)
- it's in generic code (affected ppc, ia64 and parisc)
- it's probably in 'core' code actually (totally different
configurations, yet affected all of them)
- it has an impact on fs coherency (that's the only explanation i can
come up with to explain the fact that init=/bin/sh won't work)
- 2.6.16 doesn't seem to be affected (at least not to that extent)

HTH, and again, feel free to ask questions

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On 7/23/06, Matthew Wilcox <matthew@wil.cx> wrote:
> On Sun, Jul 23, 2006 at 10:54:38PM -0400, Thibaut VARENE wrote:
> > My take is that we see that bug so much more on pa8800 because of its
> > huge cache and thus because we hit cache much more often than on all
> > other machines...
>
> I don't think so.  pa8800 has less cache per core than pa8700.  The L2
> cache is ignorable for the purposes of this scenario, since it's
> transparent to software.

I don't think so :)

On B180, 1MB cache addon is "transparent" and the kernel doesn't see
it at all (/proc/cpuinfo doesn't even show it).

On pa8800, the kernel sees L2 (/proc/cpuinfo shows it) and computes
the flush routines based on L2 size, so I really don't understand how
it is transparent...

Which is why I'm making the point that either our cache flush
computations are wrong on pa8800 (and ggg says they aren't), or the L2
is /not/ transparent and what I said previously wrt huge cache size
should make some sense, shouldn't it?

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On Sat, Jul 22, 2006 at 06:49:18PM -0500, Michael S. Zick wrote:
> The assumption here is that the flag bit in an external variable
> is always in-sync with the interrupt status bit in the register.

The flag bit is generally the value _before_ we attempted to acquire a lock.
I'm really not comfortable with passing in a zero flags value.
I'd need to review alot more code to be happy we aren't breaking
something else that uses __raw_spin_lock.

...
> A general purpose, like we don't know what state the interrupts
> are in, and we don't want to trust an external flag bit;
> 
> Looks like:
> 
> Busy_Loop:
>    Save current interrupt status to the external variable;
>    Enable interrupts; /* a nop if already enabled */
>    Cpu_relax; /* Long enough to recognize pending interrupts */
>    Restore interrupt status from external variable;

I'm ok with this for two reasons:
1) I'm not sure looking at the _previous_ state is the intent
2) branch in perf path is always a bad thing (after cacheline misses).

However, I don't know if there is a reason to instead look at
the previous state.

> Our redefining Cpu_relax to a pair of nops was for machines that
> delay recognizing interrupts for an instruction after changing
> the status bit.  We also included an asm comment in Cpu_relax
> just in case we wanted to see that it had not gotten optimized away.

the asm comment is a good idea.

> Same reason the mb() was redefined as an asm comment that could
> be identified by inspection.

*nod*.

thanks,
grant
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Subject: Re: [parisc-linux] The problem on the PA8800 is all in the data-cache.
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On 7/23/06, James Bottomley <James.Bottomley@steeleye.com> wrote:
> On Sun, 2006-07-23 at 22:54 -0400, Thibaut VARENE wrote:
> > Actually on some occasion, the sshd would kill the incoming connection
> > with "bad packet length" and "invalid hash packet" and all sorts of
> > various nasty error messages. And we made sure that these messages
> > were sent by the _server_, not the _client_...
> >
> > My take is that we see that bug so much more on pa8800 because of its
> > huge cache and thus because we hit cache much more often than on all
> > other machines...
> >
> > Still investigating this, i'm about to bring back online my rp3440 ;)
>
> I can get a stable ssh connection to a pa8800 ... once established, I
> don't ever see them close for MIC problems.

I'm totally amazed. Carlos and I could never get a single established
connection...

> To get one going, you just start several remote ssh's at once, so this
> would tend to indicate that it's some type of timing issue connected to
> the fork.

Well, I can consistently crash a remote telnet session if i output too
much data in the terminal (eg running dmesg or ls -lR). I doubt this
is fork related...

Another point worth mentioning, is that sshd is very likely mlocking
stuff so that it doesn't get swapped. Actually, it's been a while
since i last gave a look at sshd source, but I'd bet it keeps mostly
everything in RAM, and given the size of the cache on pa8800, blah
blah see my other mail i'm exhausted ;)

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On 7/24/06, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> On 7/23/06, James Bottomley <James.Bottomley@steeleye.com> wrote:
> > On Sun, 2006-07-23 at 22:54 -0400, Thibaut VARENE wrote:
> > > Actually on some occasion, the sshd would kill the incoming connection
> > > with "bad packet length" and "invalid hash packet" and all sorts of
> > > various nasty error messages. And we made sure that these messages
> > > were sent by the _server_, not the _client_...
> > >
> > > My take is that we see that bug so much more on pa8800 because of its
> > > huge cache and thus because we hit cache much more often than on all
> > > other machines...
> > >
> > > Still investigating this, i'm about to bring back online my rp3440 ;)
> >
> > I can get a stable ssh connection to a pa8800 ... once established, I
> > don't ever see them close for MIC problems.
>
> I'm totally amazed. Carlos and I could never get a single established
> connection...

Another quick dump, yesterday, Carlos and I experienced a totally
different behaviour from our statically linked sshd. It wouldn't even
start... Grant on the other hand, first kept being bounced off ioz and
suddenly started to consistently get passwd prompts, but couldn't
login... Dunno if that rings any bells.

Carlos will probably have more to say about what we've been through
yesterday, he took notes ;)

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [parisc-linux] Fwd: [BUG] 2.6.17 hangs on ppc/ia64/parisc and
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On Sun July 23 2006 22:41, Thibaut VARENE wrote:
> Hi pa-ckers,
> 
> Here's what I just sent to lkml
> 
> ----------
> 

Comments following dump.

> 
> Finally, most recently (yesterday to be precise), on of my parisc
> system (rp3440, pa8800 SMP 800MHz, 4GB RAM, 73GB SCSI) crashed while I
> was using it, and again exposed the exact same symptoms. It was
> running  debian sid and 2.6.17-rc6-pa3 64bit. It was up for a
> few hours. Interestingly, I experienced much longer uptimes with that
> very same machine/kernel. The machine was running gdb when it died,
> and this time I got a stack dump on the console. I don't totally trust
> parisc stack unwinder but here it is anyway:
> 
> BUG: soft lockup detected on CPU#1!
> Backtrace:
>  [<0000000010112aa0>] dump_stack+0x18/0x28
>  [<0000000010172558>] softlockup_tick+0x130/0x160
>  [<0000000010152630>] run_local_timers+0x28/0x38
>  [<0000000010152708>] update_process_times+0xc8/0x128
>  [<000000001011d9d8>] smp_do_timer+0x60/0x80
>  [<0000000010113a5c>] timer_interrupt+0xec/0x1f0
>  [<00000000101726fc>] handle_IRQ_event+0x74/0xf8
>  [<0000000010172838>] __do_IRQ+0xb8/0x260
>  [<00000000101145f8>] do_cpu_irq_mask+0x130/0x1f8
>  [<0000000010104074>] intr_return+0x0/0x1c
> 
> BUG: soft lockup detected on CPU#0!
> Backtrace:
>  [<0000000010112aa0>] dump_stack+0x18/0x28
>  [<0000000010172558>] softlockup_tick+0x130/0x160
>  [<0000000010152630>] run_local_timers+0x28/0x38
>  [<0000000010152708>] update_process_times+0xc8/0x128
>  [<000000001011d9d8>] smp_do_timer+0x60/0x80
>  [<0000000010113a5c>] timer_interrupt+0xec/0x1f0
>  [<00000000101726fc>] handle_IRQ_event+0x74/0xf8
>  [<0000000010172838>] __do_IRQ+0xb8/0x260
>  [<00000000101145f8>] do_cpu_irq_mask+0x130/0x1f8
>  [<0000000010104074>] intr_return+0x0/0x1c
>  [<0000000010167708>] hrtimer_run_queues+0x198/0x268
>  [<000000001015239c>] run_timer_softirq+0x54/0x2c0
>  [<000000001014b8cc>] __do_softirq+0x15c/0x180
>  [<000000001010ec14>] do_softirq+0x64/0x70
>  [<000000001014ba1c>] irq_exit+0x6c/0x78
>  [<0000000010114680>] do_cpu_irq_mask+0x1b8/0x1f8
> 
> This bug (so far) never killed our systems as badly as what I'm
> describing, so it could be something else. The rp3440 machine was
> using an ext3 fs.
> 

Joel has also seen that on his N4K (PA8700) - its in the m-l somewhere.

CPU1 - Looks like it is reporting the stack of the softlock up call.
CPU0 - Has been seen here before or when running task lists for signals.

See other recent posts about this chunk of code (quoting Joel):

Q4: imho the most important: 
	with 2 gcc where is the couple of ssm/rsm that jejb introduced in his patch:

<http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2005-October/036211.html>
--- linux-2.6/include/asm-parisc/spinlock.h?????2005/09/14 14:42:11?????1.16
+++ linux-2.6/include/asm-parisc/spinlock.h?????2005/10/20 16:07:04?????1.17
@@ -11,18 +11,25 @@
	return *a == 0;
 }

-#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
+#define __raw_spin_lock(lock) __raw_spin_lock_flags(lock, 0)
 #define __raw_spin_unlock_wait(x) \
			do { cpu_relax(); } while (__raw_spin_is_locked(x))

-static inline void __raw_spin_lock(raw_spinlock_t *x)
+static inline void __raw_spin_lock_flags(raw_spinlock_t *x,
+unsigned long flags)
 {
	volatile unsigned int *a;

	mb();
	a = __ldcw_align(x);
	while (__ldcw(a) == 0)
-		while (*a == 0);
+		while (*a == 0)
+			if (flags & PSW_SM_I) {
+				local_irq_enable();
+				cpu_relax();
+				local_irq_disable();
+			} else
+				cpu_relax();
		mb();
	}

(My e-mail client just trashed the whitespace in the above.)
Mike
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Subject: Re: [parisc-linux] Fwd: [BUG] 2.6.17 hangs on ppc/ia64/parisc and
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On Sun July 23 2006 22:41, Thibaut VARENE wrote:
> Hi pa-ckers,
> 
> Here's what I just sent to lkml
> 
> ----------
> 
> It was up for a few hours. 
> Interestingly, I experienced much longer uptimes with that 
> very same machine/kernel. 

Same compiler now as when you had the longer up-times?

I think there was an abi-event between parisc-3.3 & 3.4
re-compile with gcc-3.3 - see if your machine survives longer.

Mike
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Subject: [parisc-linux] parisc trap.c unwind.c small question?
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Xref: news.gmane.org gmane.linux.ports.parisc:23859

Hi *,

While taking a break, istr it was better to write (ptr =3D=3D NULL) is pl=
ace
(!ptr)?--- arch/parisc/kernel/traps.c.Orig     2006-07-24 15:21:46.000000=
000 +0200
+++ arch/parisc/kernel/traps.c  2006-07-24 16:01:13.000000000 +0200
@@ -182,14 +182,14 @@
 {
        struct unwind_frame_info info;

-       if (!task) {
+       if (task =3D=3D NULL) {
                unsigned long sp;
                struct pt_regs *r;

 HERE:
                asm volatile ("copy %%r30, %0" : "=3Dr"(sp));
                r =3D kzalloc(sizeof(struct pt_regs), GFP_KERNEL);
-               if (!r)
+               if (r =3D=3D NULL)
                        return;
                r->iaoq[0] =3D (unsigned long)&&HERE;
                r->gr[2] =3D (unsigned long)__builtin_return_address(0);
@@ -238,7 +238,7 @@
         * to initialize the serial or STI console. In that case we shoul=
d
         * re-enable the pdc console, so that the user will be able to
         * identify the problem. */
-       if (!console_drivers)
+       if (console_drivers =3D=3D NULL)
                pdc_console_restart();

        printk(KERN_CRIT "%s (pid %d): %s (code %ld)\n",
@@ -423,7 +423,7 @@
        pdc_emergency_unlock();

        /* restart pdc console if necessary */
-       if (!console_drivers)
+       if (console_drivers =3D=3D NULL)
                pdc_console_restart();

        /* Not all paths will gutter the processor... */
--- arch/parisc/kernel/unwind.c.Orig    2006-07-24 15:49:07.000000000 +02=
00
+++ arch/parisc/kernel/unwind.c 2006-07-24 15:49:51.000000000 +0200
@@ -345,7 +345,7 @@
        struct pt_regs *r2;

        r2 =3D (struct pt_regs *)kmalloc(sizeof(struct pt_regs), GFP_KERN=
EL);
-       if (!r2)
+       if (r2 =3D=3D NULL)
                return;
        *r2 =3D *r;
        r2->gr[30] =3D r->ksp;
=3D=3D=3D=3D<>=3D=3D=3D=3D

Thanks,
    Joel

=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devenez au=
jourd'hui Scarlet One grace a un client existant de Scarlet, vous recevez=
 tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur http:/=
/www.clubscarlet.be

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On 7/23/06, Michael S. Zick <mszick@morethan.org> wrote:
> On Sat July 22 2006 20:01, Thibaut VARENE wrote:
> > Carlos,
> >
> > I'm observing something totally crazy right now. On the very same
> > machine we hacked yesterday, exact same setup (same kernel, same
> > binary, same everything):
> >
> > i /can't/ start our static sshd anymore. It dies right after a sysctl (!):
> >
> > I'm leaving the box powered up, not touching anything until we get a
> > chance to investigate this a bit more.
> >
>
> Is it still possible to capture the kernel's internal state by
> copying /proc/kcore to a file somewhere?

That box hit the "kill your fs" bug I've seen on ppc and ia64
(upcoming report mail to be posted soon) so it's basically dead at
that point and I'm having hard time reinstalling it (thanks to pa8800
being /such/ a hassle to install remotely).

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [parisc-linux] The problem on the PA8800 is all in the data-cache.
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On Sun, 2006-07-23 at 22:33 -0400, James Bottomley wrote:
> > Grant expressed worry that "Pattern 1" was indicative of a dma sync
> > problem with the network socket read.
> 
> I'm still dubious about this one ... even if we agree it's a D cache
> issue, it's definitely a D cache issue affecting program execution (i.e.
> function pointers or call indirection).  The data coming out of the
> network pipe for ssh never finds its way into the execution stream,
> which means it's unlikely to affect these areas.  Additionally, ssh has
> message integrity checks which fail noisily (i.e. the network data is
> verified against a secure hash before it's used).  So, if we had
> incoherent data from the pipe, I would exect to see periodic MIC
> failures, which we don't see.

Let me back up on this one.  I still don't think it's a DMA sync issue.
However, it could be a different D incoherency issue.  Because the linux
kernel operates with kernel to user aliases (i.e. the user address of a
page is rarely congruent to the kernel address of a page) it is possible
to generate D incoherency by missing a flush when a kernel page is
reclaimed (i.e. freed).

The scenario that resonates nicely with all this has to do with the
skbuff allocation and copying.  Because the network read path isn't zero
copy, we do intermediate copies into skbuff areas before eventually
sending the data to the user socket.  the idea is that the skbuff is
freed and then reallocated to the user process in the fault (this gives
us the necessary same physical index).  If the kernel address of the
skbuff were accidentally congruent to the fault address, we'd actually
see the skbuff data instead of the underlying page data if it weren't
flushed.  The problem, as usual, is that this isn't pa8800 specific ...

James


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Subject: Re: [parisc-linux] The problem on the PA8800 is all in the data-cache.
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> On Sun, Jul 23, 2006 at 10:54:38PM -0400, Thibaut VARENE wrote:
> > My take is that we see that bug so much more on pa8800 because of its
> > huge cache and thus because we hit cache much more often than on all
> > other machines...
> 
> I don't think so.  pa8800 has less cache per core than pa8700.  The L2
> cache is ignorable for the purposes of this scenario, since it's
> transparent to software.

It is visible.  You see it in the size returned for the D cache by
PDC_CACHE.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Cc: Matthew Wilcox <matthew@wil.cx>,
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On Mon, Jul 24, 2006 at 09:10:04AM -0500, James Bottomley wrote:
> What Matthew means is that the L2 cache is PIPT ... you can't get
> aliasing effects in a PIPT cache, so for the purposes of the problem it
> must be ignorable, since we can only get aliasing effects in the L1
> cache which is VIPT.

While I agree in general that a PIPT cache won't have aliasing effects.
ISTR the virtual coherence index (VCI) is part of the "physical address".
If it's not, I'm confused how CPUs on different sockets remain coherent.
I expect the VCI is visible across the Mckinley Bus and thus is part
of the physical address. IOMMU is also pushing out an address that
has VCI bits in it - so DMA remains coherent with CPU virtual addresses.

If I've got this right, then we can have aliasing in PIPT cache.
Willy, can you check the pa8800 ERS and look for "coherence index"
or similar, related words?

thanks,
grant
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I hacked out a rough first implementation of parisc64 for klibc
last month, and only just got around to testing it now.

The good news, it compiled fine on the first shot. The bad news,
it failed to link usr/klibc/libc.so, and I'm not clueful enough
to know why.

hppa64-linux-gnu-ld  -Ttext 0x40001000 -o usr/klibc/libc.so --start-group
[...]
usr/klibc/socketcalls/recvmsg.o /usr/lib/gcc/hppa64-linux-gnu/4.1.2/libgcc.a --end-group
hppa64-linux-gnu-ld: warning: cannot find entry symbol main; defaulting to 0000000040001000
hppa64-linux-gnu-ld: usr/klibc/libc.so: Not enough room for program headers (allocated 5, need 6)
 Section to Segment mapping:
  Segment              Sections...
  00:           PHDR:  
  01:         INTERP:  .interp 
  02:           LOAD:  .interp .dynamic .hash .dynsym .dynstr 
  03:           LOAD:  .text .rodata .PARISC.unwind .eh_frame 
  04:           LOAD:  .data.rel.ro .data .opd .dlt .bss 
  05:        DYNAMIC:  .dynamic 
hppa64-linux-gnu-ld: final link failed: Bad value
make[2]: *** [usr/klibc/libc.so] Error 1
make[1]: *** [all] Error 2
make: *** [klibc] Error 2

You can fetch it from
git://git.kernel.org/pub/scm/linux/kernel/git/kyle/klibc-parisc64.git,
and compile it with:

make CROSS_COMPILE=hppa64-linux-gnu- ARCH=parisc64 V=1

(It seemed to build without warning on my Debian etch rp2470)

Any hints would be appreciated.

Cheers,
	Kyle M.
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On Sun, Jul 23, 2006 at 06:03:47PM -0400, Thibaut VARENE wrote:
> That box hit the "kill your fs" bug I've seen on ppc and ia64
> (upcoming report mail to be posted soon) so it's basically dead at
> that point and I'm having hard time reinstalling it (thanks to pa8800
> being /such/ a hassle to install remotely).
> 

Does it have two disks? Maybe we should keep one disk as 'known good'
backup on ioz and magnum, and if they crap out, BO ALT and dd it over
the scrogged disk? Just a thought which might save some pain in the
future considering they are crash n' bash machines.
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> The good news, it compiled fine on the first shot. The bad news,
> it failed to link usr/klibc/libc.so, and I'm not clueful enough
> to know why.
> 
> hppa64-linux-gnu-ld  -Ttext 0x40001000 -o usr/klibc/libc.so --start-group
> [...]
> usr/klibc/socketcalls/recvmsg.o /usr/lib/gcc/hppa64-linux-gnu/4.1.2/libgcc.a --end-group
> hppa64-linux-gnu-ld: warning: cannot find entry symbol main; defaulting to 0000000040001000
> hppa64-linux-gnu-ld: usr/klibc/libc.so: Not enough room for program headers (allocated 5, need 6)
>  Section to Segment mapping:
>   Segment              Sections...
>   00:           PHDR:  
>   01:         INTERP:  .interp 
>   02:           LOAD:  .interp .dynamic .hash .dynsym .dynstr 
>   03:           LOAD:  .text .rodata .PARISC.unwind .eh_frame 
>   04:           LOAD:  .data.rel.ro .data .opd .dlt .bss 
>   05:        DYNAMIC:  .dynamic 
> hppa64-linux-gnu-ld: final link failed: Bad value

This is a ld bug.  I see the same problem on hpux with '-static'.  We
need another program header sometimes and I haven't figured out why.
I had a hack on my A500 that I might be able to find but it's down at
the moment.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Jul 24, 2006 at 03:01:36PM -0400, John David Anglin wrote:
> > hppa64-linux-gnu-ld: usr/klibc/libc.so: Not enough room for program headers (allocated 5, need 6)
[...]
> > hppa64-linux-gnu-ld: final link failed: Bad value
> 
> This is a ld bug.  I see the same problem on hpux with '-static'.  We
> need another program header sometimes and I haven't figured out why.
>

So, klibc linked statically (libc.a) properly...

Interesting. So I fetched the cmdline used to build some of the static
test programs from klibc out of a 32-bit parisc build, and edited them
in the relevant ways to build for 64-bit. The outputted executable when
examined with "file" claimed to be "dynamically linked (uses shared libs)"
and would return "No such file or directory" when executed, implying that
it wasn't linked properly.

However, examination with readelf seemed to be alright.

I can provide the test built program (minips).

Cheers,
	Kyle M.
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> > hppa64-linux-gnu-ld: usr/klibc/libc.so: Not enough room for program headers (allocated 5, need 6)

Additional phdrs are provided by elf64_hppa_additional_program_headers
in bfd/elf64-hppa.c.  The code doesn't expect a .interp section in
a shared library.  That would appear to be the problem here.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Interesting. So I fetched the cmdline used to build some of the static
> test programs from klibc out of a 32-bit parisc build, and edited them
> in the relevant ways to build for 64-bit. The outputted executable when
> examined with "file" claimed to be "dynamically linked (uses shared libs)"
> and would return "No such file or directory" when executed, implying that
> it wasn't linked properly.

Under hpux, non-dynamic executables aren't supported (i.e., we always
need an interpreter).  The dynamic loader defines some linker-defined
symbols that we don't have support for in the linker itself.  There may
be other reasons...

Thus, dynamically linked doesn't imply the presence of shared libraries.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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John David Anglin wrote:
>>> hppa64-linux-gnu-ld: usr/klibc/libc.so: Not enough room for program headers (allocated 5, need 6)
> 
> Additional phdrs are provided by elf64_hppa_additional_program_headers
> in bfd/elf64-hppa.c.  The code doesn't expect a .interp section in
> a shared library.  That would appear to be the problem here.
> 

(k)libc.so isn't a shared library in the ELF sense.  It's an executable.

klibc doesn't do dynamic linking at all.  As Dave said, dynamically 
linked doesn't imply the presence of shared libraries; the converse is 
also true.

	-hpa

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H. Peter Anvin wrote:
> 
> (k)libc.so isn't a shared library in the ELF sense.  It's an executable.
> 

... specifically, as far as ELF (and the kernel) is concerned, it's the 
ELF interpreter; it's linked at a fixed address and the application 
invokes it with usual static jumps.

Very similar to old Linux a.out stuff.  Messy and primitive, but very fast.

	-hpa
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> H. Peter Anvin wrote:
> > 
> > (k)libc.so isn't a shared library in the ELF sense.  It's an executable.
> > 
> 
> ... specifically, as far as ELF (and the kernel) is concerned, it's the 
> ELF interpreter; it's linked at a fixed address and the application 
> invokes it with usual static jumps.

"Usual static jumps"?  There's nothing usual about static jumps on
the PA ;(  However, it should be possible to jump to a static address
with the right setup.

The 64-bit linker hasn't really been ported to linux.  The interpreter
section is hardcoded to ELF_DYNAMIC_INTERPRETER:

#define ELF_DYNAMIC_INTERPRETER "/usr/lib/pa20_64/dld.sl"

      /* Set the contents of the .interp section to the interpreter.  */
      if (info->executable)
	{
	  s = bfd_get_section_by_name (dynobj, ".interp");
	  BFD_ASSERT (s != NULL);
	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
	}

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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John David Anglin wrote:
>> H. Peter Anvin wrote:
>>> (k)libc.so isn't a shared library in the ELF sense.  It's an executable.
>>>
>> ... specifically, as far as ELF (and the kernel) is concerned, it's the 
>> ELF interpreter; it's linked at a fixed address and the application 
>> invokes it with usual static jumps.
> 
> "Usual static jumps"?  There's nothing usual about static jumps on
> the PA ;(  However, it should be possible to jump to a static address
> with the right setup.
> 
> The 64-bit linker hasn't really been ported to linux.  The interpreter
> section is hardcoded to ELF_DYNAMIC_INTERPRETER:
> 
> #define ELF_DYNAMIC_INTERPRETER "/usr/lib/pa20_64/dld.sl"
> 
>       /* Set the contents of the .interp section to the interpreter.  */
>       if (info->executable)
> 	{
> 	  s = bfd_get_section_by_name (dynobj, ".interp");
> 	  BFD_ASSERT (s != NULL);
> 	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
> 	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
> 	}
> 

OK, well then it's probably pointless to try to get 64-bit klibc up and 
running on it at this point.  That's fine, though; we can just use 32-bit.

	-hpa
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On dim, 2006-07-16 at 16:13 -0400, Carlos O'Donell wrote:
> On 7/16/06, Jeff Bailey <jbailey@raspberryginger.com> wrote:
> > On Sun, Jul 16, 2006 at 06:39:15PM +0200, Andreas Schwab wrote:
> >
> > > > The problem is that bits/ustat.h includes the definition of struct
> > > > ustat.  However, sys/types.h eventually winds up pulling in
> > > > linux/types.h which also defines struct ustat.
> > >
> > > <sys/types.h> should not include <linux/types.h> in the first place.
> >
> > It seems like it ought to now that the kernel is exporting a set of
> > headers that are intended to be used by userspace.  struct ustat is
> > defined in linux/types.h.
> 
> In which case this patch should go upstream to libc-alpha, where the
> generic version of ustat.h should be changed.

Certainly, but could you apply the second patch in the meantime?  That's
what all the other arch's do right now, and it will at least make
current glibc buildable with current kernel headers.  I'll try and pitch
the concept of using kernel headers instead of copying values into glibc
when I have enough time and energy to fight that battle.

Tks,
Jeff Bailey

-- 
Although when you're in the situation that RMS is telling you that
you're being too ideological about freedom, maybe, just maybe, it's
true.
- Matthew Wilcox

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On 7/23/06, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Sun, Jul 23, 2006 at 06:03:47PM -0400, Thibaut VARENE wrote:
> > That box hit the "kill your fs" bug I've seen on ppc and ia64
> > (upcoming report mail to be posted soon) so it's basically dead at
> > that point and I'm having hard time reinstalling it (thanks to pa8800
> > being /such/ a hassle to install remotely).
> >
>
> Does it have two disks? Maybe we should keep one disk as 'known good'
> backup on ioz and magnum, and if they crap out, BO ALT and dd it over
> the scrogged disk? Just a thought which might save some pain in the
> future considering they are crash n' bash machines.

It /had/ two disks and one good backup. Until I ran (for my own shame
and that of my offsprings) '# rm -rf /mnt *' on the backup one...

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On Mon, Jul 24, 2006 at 04:17:13PM -0700, H. Peter Anvin wrote:
> OK, well then it's probably pointless to try to get 64-bit klibc up and 
> running on it at this point.  That's fine, though; we can just use 32-bit.
> 

Just means I need to learn to hack binutils. No big deal. :)
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Subject: Re: [klibc] [parisc-linux] klibc parisc64
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On Mon, Jul 24, 2006 at 09:46:34PM -0400, Kyle McMartin wrote:
> On Mon, Jul 24, 2006 at 04:17:13PM -0700, H. Peter Anvin wrote:
> > OK, well then it's probably pointless to try to get 64-bit klibc up and 
> > running on it at this point.  That's fine, though; we can just use 32-bit.
> > 
> 
> Just means I need to learn to hack binutils. No big deal. :)

Patches to clean up the relationship between hpux and linux, and
to define the linux 64-bit runtime are welcome.  For example,
we have in hppa64linux.sh:

SCRIPT_NAME=elf
ELFSIZE=64
# FIXME: this output format is for hpux.
OUTPUT_FORMAT="elf64-hppa-linux"
...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: James Bottomley <James.Bottomley@SteelEye.com>
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Subject: Re: [parisc-linux] The problem on the PA8800 is all in the data-cache.
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On Sat, 2006-07-22 at 13:50 -0400, Carlos O'Donell wrote: 
> After spending ~4 hours of debugging yesterday evening, between
> Thibaut, Dave, and myself, we firmly believe the PA8800 problems are
> data cache issues.

Thanks very much for spending the time to do this!

> a) We think it is not an icache issue, but infact a dcache issue.
> 
> Often it appears as if a register was corrupted, but the truth is that
> the ldw loaded bogus data into a register.

OK, I'll buy this provisionally ... D cache incoherence is far more
difficult to explain than D/I incoherence, but I'll try.

> b) One time, on a later comparison in gdb, the register and data in
> memory did not equal. I stress that we only saw this situation once.

OK, as long as it was a register read, this must have been D
incoherence.

> c) We have often seen the failure with the frame marker on a cacheline
> boundary, for example 0xc0278100 (e.g. 256 bytes).
> 
> It is my hope that these patterns will trigger someone to devise a
> plan for fixing this. If you have any questions about our methods, or
> reproducing this, you can easily talk to Thibaut and we can probably
> setup access to the test sshd binary.

OK .. let me try to think of this one.  To me, the pattern indicates
errors in newly faulted memory (either from stack growth or touching
malloced areas which are mmapped in glibc).  So, here's the only current
theory I can come up with:  Aggressive prefetching is causing us
problems in faulting.  Theoretically, it looks like the culprit should
be anonymous pages (because that's what stack and malloc areas
are---they're not file backed).  However, I tend to discount this
because the only way data gets into anonymous memory is when the user
(or the linker running on behalf of the user) puts it there.  Thus,
there should be no user coherence issues with data in anonymous memory.

> Grant expressed worry that "Pattern 1" was indicative of a dma sync
> problem with the network socket read.

I'm still dubious about this one ... even if we agree it's a D cache
issue, it's definitely a D cache issue affecting program execution (i.e.
function pointers or call indirection).  The data coming out of the
network pipe for ssh never finds its way into the execution stream,
which means it's unlikely to affect these areas.  Additionally, ssh has
message integrity checks which fail noisily (i.e. the network data is
verified against a secure hash before it's used).  So, if we had
incoherent data from the pipe, I would exect to see periodic MIC
failures, which we don't see.

I'm also coming to the conclusion that the aggressive prefetch theory
isn't entirely accurate.  It fits the I/D incoherency theory because we
get I cache prefetches on D cache TLB entries (because of the combined
I/D tlb) then we only flush the D cache because we don't expect I data
there (all our data regions currently seem to be executable as well).
However, for D cache incoherence alone, it seems implausible because we
have to have a tlb entry to move in across a page boundary, and every
tlb entry can only be inserted from a pte (and for every pte we will
flush the cache on object destruction).

One of the suspicious monsters in our code is the PAGE_FLUSH setting,
which allows tlb re-insertion after linux thinks it has been cleared in
violation of the linux tlb philosophy.  However, those mappings are
supposed to be "flush only" and, since the algorithm had a hole in it, I
thought I fixed it not to need PAGE_FLUSH entries (even though we keep
them around).  Regardless, tmpalias flushing completely eliminates any
window we have in this regard, and, as pa8800 still doesn't work, I
think I have to conclude it's not even this.

So, the final thing we're left with is a missed or elided flush
somewhere in the linux code, which is going to be extremely hard to
find.

James


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] The problem on the PA8800 is all in the data-cache.
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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To: James Bottomley <James.Bottomley@SteelEye.com>
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On Tue, Jul 25, 2006 at 11:17:19AM -0500, James Bottomley wrote:
> On Tue, 2006-07-25 at 12:13 -0400, John David Anglin wrote:
> > How about disabling L2?  This should test your theory.
> 
> Kyle's working on it based on Grant's original work ... you need access
> to a lot of secret diag registers to do this, though, so it's not easy.

You misheard. I'll be poking at this again in the near future.
I've gotten the code to modify diag registers done.
I just need to test the L2 disable and write a wrapper that
does the necessary I/D cache flushing.

grant
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Kyle McMartin wrote:
> On Tue, Jul 25, 2006 at 02:58:02PM -0700, H. Peter Anvin wrote:
>> Kyle McMartin wrote:
>>> Implement "pid_t vfork(void)" for parisc.
>>>
>> Dumb question... where does %r20 get set?  This isn't invoked by a 
>> system call stub; it's the entire function.
>>
> 
> Oh. Nowhere then. We can set it in the branch delay slot.
> 

Cool.  Could you do a "make test" and run usr/klibc/tests/vfork to verify?

(For completeness sake: klibc supports generating stubs for alternate 
system call conventions by using the following syntax in SYSCALLS.def:

returntype syscall@convention(args...);

The string "convention" gets passed to sysstub.ph; on most architectures 
it simply replaces the string "common" in "__syscall_common".

However, there isn't exactly any point to do that for single-shot system 
  call conventions, like vfork() and pipe() on many platforms.

	-hpa
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On Tue, 2006-07-25 at 16:02 -0600, Grant Grundler wrote:
> You misheard. I'll be poking at this again in the near future.
> I've gotten the code to modify diag registers done.
> I just need to test the L2 disable and write a wrapper that
> does the necessary I/D cache flushing.

Actually, I found a different way to prove the theory.

In linux, we're careful about sequential accesses to memory (i.e. only
the user or the kernel may touch a page) to avoid the dirty line
aliasing which bites on all architectures.  However, the kernel takes
this care in almost every place, principally because we don't
necessarily know if the user line is dirty or not.  Thus it's possible
to use this guarantee to make the kernel fully equivalently mapped.

The primary engine of this guarantee is the kmap/kunmap (also _atomic).
When we come into a kmap region, we're guaranteed that the user mappings
have been flushed, so really all we have to do is flush the kernel
mappings when we leave.

This flush kernel mapping is a simple two line addition to highmem.h and
with it (as demonstration code), the pa8800 works reliably.

This fix is a gross O(1) one.  There will still be O(2) regions where
this guarantee needs to be fixed up independent of kmap/kunmap.
However, the O(1) fix gets pa8800 to the point where sshd works and we
get only the occasional segfault (I've only found one so far in an hour
of stress testing).

The other thing that will be contributing to O(2) effects is cache
movein.  Even though we flush the page, the CPU is entitled to move it
back into cache if it finds a TLB entry, so we have to begin purging the
TLB entries as we do this as well.

The final problem (once we have the O(2) effects all sorted) will be to
get this upstream.  The kmap API is supposed not to care about coherence
effects, now I'm making it, so I can sell this to the arch maintainers
as eliminating a lot of the kmap/flush_kernel_dcache_page/kunmap that we
do today ... I hope.

James



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Hi Joel,

The 'Magic System Request' key combo can be used
to print out some kernel debug info to the console,
or to do an emergency umount of all filesystems.

See /usr/src/linux/Documentation/sysrq.txt

Most people won't have activated this feature in the kernel,
except for kernel developers or other freaks ;)


On 27/07/06, Joel Soete <soete.joel@scarlet.be> wrote:
>
> > On Mon, 2006-07-24 at 00:01 -0400, Thibaut VARENE wrote:
> > > Hi pa-ckers
> > >
> > > quick brain dump before going to bed:
> > > 2.6.18-rc1-pa3
> > > boot init=/bin/sh -- machine is alive
> > > issue a sysrq h (help) -- machine is dead
> > >
> mmm is there a dpkg containing this 'sysrq' cmd?


There is none. It is a  key combo. Over the serial line it is usually
initiated by a <BRK> signal + a character (see the sysrq.txt mentioned
above).

> > happened to me on parisc and probably ia64 (have to double check the
> latter).
> >
> > This is a known and incredibly annoying bug:  serial console is broken
> > for sysrq.  Alan Cox is currently trying to fix it, I believe.
> >
> Is it this related:
> --- snip ---
> Author: Andrew Morton <akpm@osdl.org>
> Date:   Fri Jun 30 02:29:59 2006 -0700
>
>     [SERIAL] 8250: sysrq deadlock fix
>
>     Fix http://bugzilla.kernel.org/show_bug.cgi?id=6716
>
>     Doing a sysrq over a serial line into an SMP machine presently
> deadlocks.


Seems so.

    Signed-off-by: Andrew Morton <akpm@osdl.org>
>     Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
> --- snip ---
>
> (ChangeLog-2.6.18-rc2)
>
> if yes I tested on my n4k but unfortunately doesn't help for the smp pb:
> after only 1 day and 22h of my stress test it still hanging in dump_stack
> (I was hoping it could be the place where things went wrong too ;-( )


I doubt it, I don't know too much about kernel internals, but looking at the
patch you can see it just adds a extra 'if' for the sysrq case, so it
shouldn't affect anything else ...


    Max

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Hi Joel,<br><br>The 'Magic System Request' key combo can be used<br>to print out some kernel debug info to the console,<br>or to do an emergency umount of all filesystems.<br><br>See /usr/src/linux/Documentation/sysrq.txt<br>
<br>Most people won't have activated this feature in the kernel,<br>except for kernel developers or other freaks ;)<br><br><br><div><span class="gmail_quote">On 27/07/06, <b class="gmail_sendername">Joel Soete</b> &lt;<a href="mailto:soete.joel@scarlet.be">
soete.joel@scarlet.be</a>&gt; wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">&gt; On Mon, 2006-07-24 at 00:01 -0400, Thibaut VARENE wrote:
<br>&gt; &gt; Hi pa-ckers<br>&gt; &gt;<br>&gt; &gt; quick brain dump before going to bed:<br>&gt; &gt; 2.6.18-rc1-pa3<br>&gt; &gt; boot init=/bin/sh -- machine is alive<br>&gt; &gt; issue a sysrq h (help) -- machine is dead
<br>&gt; &gt;<br>mmm is there a dpkg containing this 'sysrq' cmd?</blockquote><div><br>There is none. It is a&nbsp; key combo. Over the serial line it is usually<br>initiated by a &lt;BRK&gt; signal + a character (see the sysrq.txt
 mentioned above).<br></div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">&gt; &gt; happened to me on parisc and probably ia64 (have to double check the latter).
<br>&gt;<br>&gt; This is a known and incredibly annoying bug:&nbsp;&nbsp;serial console is broken<br>&gt; for sysrq.&nbsp;&nbsp;Alan Cox is currently trying to fix it, I believe.<br>&gt;<br>Is it this related:<br>--- snip ---<br>Author: Andrew Morton &lt;
<a href="mailto:akpm@osdl.org">akpm@osdl.org</a>&gt;<br>Date:&nbsp;&nbsp; Fri Jun 30 02:29:59 2006 -0700<br><br>&nbsp;&nbsp;&nbsp;&nbsp;[SERIAL] 8250: sysrq deadlock fix<br><br>&nbsp;&nbsp;&nbsp;&nbsp;Fix <a href="http://bugzilla.kernel.org/show_bug.cgi?id=6716">http://bugzilla.kernel.org/show_bug.cgi?id=6716
</a><br><br>&nbsp;&nbsp;&nbsp;&nbsp;Doing a sysrq over a serial line into an SMP machine presently deadlocks.</blockquote><div><br>Seems so.<br></div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
&nbsp;&nbsp;&nbsp;&nbsp;Signed-off-by: Andrew Morton &lt;<a href="mailto:akpm@osdl.org">akpm@osdl.org</a>&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp;Signed-off-by: Russell King &lt;<a href="mailto:rmk+kernel@arm.linux.org.uk">rmk+kernel@arm.linux.org.uk</a>&gt;<br>--- snip ---
<br><br>(ChangeLog-2.6.18-rc2)<br><br>if yes I tested on my n4k but unfortunately doesn't help for the smp pb:<br>after only 1 day and 22h of my stress test it still hanging in dump_stack<br>(I was hoping it could be the place where things went wrong too ;-( )
</blockquote><div><br>I doubt it, I don't know too much about kernel internals, but looking at the patch you can see it just adds a extra 'if' for the sysrq case, so it<br>shouldn't affect anything else ...<br><br><br>&nbsp;&nbsp;&nbsp; Max
<br></div></div>

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Xref: news.gmane.org gmane.linux.ports.parisc:23883

Howdy,

I have an HP 712 and decided to install Debian on it.  Followed the
instructions, got the SCSI CD-ROM to work, booted, installed it and then
it said that it had made the system bootable.  This, oddly enough, sent it
back to asking me for language.

I rebooted and the system still ended up looking for HPUX and then dumped
me into an ISL menu (if memory serves me correctly).  Read the entirety of
the FAQ but I can't seem to find a part explaining how to get the 712 to
use Debian and boot from it at start-up--unless of course I was looking
for something and it was right in front of my face with a different name.

Suggestions?  Do I need to reinstall it all over again?

Thanks for any help.
leandro


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Hi,

>I have an HP 712 and decided to install Debian on it.  Followed the
>instructions, got the SCSI CD-ROM to work, booted, installed it and then
>it said that it had made the system bootable.  This, oddly enough, sent it
>back to asking me for language.

Which version of debian (sarge?), which kind of install (mini-iso & net,
full CD-install?). How much RAM?

>I rebooted and the system still ended up looking for HPUX and then dumped
>me into an ISL menu (if memory serves me correctly).  Read the entirety of
>the FAQ but I can't seem to find a part explaining how to get the 712 to
>use Debian and boot from it at start-up--unless of course I was looking
>for something and it was right in front of my face with a different name.
>
>Suggestions?  Do I need to reinstall it all over again?

Do you have more than one disk? Perhaps you're trying to boot from the
wrong one? Interrupt the boot process and type "search" on the prompt
to get all choices.

How does your partition layout looks like?

HTH,
Uli
-- 
Dipl. Inf. Ulrich Teichert|e-mail: Ulrich.Teichert@gmx.de
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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: [parisc-linux] [git patches] tulip fixes from parisc-linux
Date: Sat, 29 Jul 2006 18:54:59 -0400
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Xref: news.gmane.org gmane.linux.ports.parisc:23885

Hi Val,

Sorry it took so long for me to get around to splitting
up the changes from the parisc-linux tree. But here
they finally are. This patchset has been running on a
variety of parisc and ia64 machines for quite some
time (several years...) without issue. Some of these
are more cosmetic changes than anything else.

Cheers,
	Kyle M.

The following changes since commit dc710afe95ee9b263ab593c11d86a684f1606872:
  Linus Torvalds:
        Merge branch 'upstream-linus' of master.kernel.org:/.../jgarzik/libata-dev

are found in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kyle/tulip-2.6.git

Francois Romieu:
      [TULIP] Defer tulip_select_media() to process context

Grant Grundler:
      [TULIP] Fix PHY init and reset
      [TULIP] Print physical address in tulip_init_one
      [TULIP] Make tulip_stop_rxtx() failure case slightly more informative
      [TULIP] Clean tulip.h so it can be used by winbond-840.c
      [TULIP] Flush MMIO writes in reset sequence
      [TULIP] Fix IRQ/DMA race

Helge Deller:
      [TULIP] Fix section mismatch in de2104x.c

Thibaut Varene:
      [TULIP] Make DS21143 printout match lspci output

 drivers/net/tulip/21142.c       |    4 +-
 drivers/net/tulip/de2104x.c     |    6 +-
 drivers/net/tulip/interrupt.c   |    4 ++
 drivers/net/tulip/media.c       |   40 ++++++++++++++-
 drivers/net/tulip/timer.c       |   14 +++++
 drivers/net/tulip/tulip.h       |   43 ++++++++++++----
 drivers/net/tulip/tulip_core.c  |  102 +++++++++++++++++++--------------------
 drivers/net/tulip/winbond-840.c |   68 +++++++++-----------------
 8 files changed, 164 insertions(+), 117 deletions(-)
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Subject: [parisc-linux] Fwd: Fix getpid in new threads after fork
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To: parisc-linux <parisc-linux@lists.parisc-linux.org>,
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Xref: news.gmane.org gmane.linux.ports.parisc:23886

Randolph,

Look familiar?

---------- Forwarded message ----------
From: Daniel Jacobowitz <drow@false.org>
Date: Jul 31, 2006 12:15 PM
Subject: Fix getpid in new threads after fork
To: libc-alpha@sourceware.org


I noticed a failure with thread cancellation after fork, which turned
out to be caused by the si_pid sanity check in sigcancel_handler.
The PID was stale.  This happened because the main program created a
thread, joined it, and then forked.  The cached thread was reused with
a stale PID.

Patch and testcase attached.  Tested on x86_64-pc-linux-gnu.

--
Daniel Jacobowitz
CodeSourcery

2006-07-31  Daniel Jacobowitz  <dan@codesourcery.com>

        * Makefile (tests): Run tst-getpid3.
        * allocatestack.c (__reclaim_stacks): Reset the PID on cached
        stacks.
        * tst-getpid3.c: New test.

Index: nptl/Makefile
===================================================================
RCS file: /cvs/glibc/libc/nptl/Makefile,v
retrieving revision 1.180
diff -u -p -r1.180 Makefile
--- nptl/Makefile       28 Mar 2006 04:13:27 -0000      1.180
+++ nptl/Makefile       31 Jul 2006 16:04:16 -0000
@@ -251,7 +251,7 @@ tests = tst-typesizes \
        tst-backtrace1 \
        tst-oddstacklimit \
        tst-vfork1 tst-vfork2 tst-vfork1x tst-vfork2x \
-       tst-getpid1 tst-getpid2 \
+       tst-getpid1 tst-getpid2 tst-getpid3 \
        tst-initializers1 $(patsubst %,tst-initializers1-%,c89 gnu89 c99 gnu99)
 xtests = tst-setuid1 tst-setuid1-static

Index: nptl/allocatestack.c
===================================================================
RCS file: /cvs/glibc/libc/nptl/allocatestack.c,v
retrieving revision 1.62
diff -u -p -r1.62 allocatestack.c
--- nptl/allocatestack.c        28 Mar 2006 04:14:00 -0000      1.62
+++ nptl/allocatestack.c        31 Jul 2006 16:04:17 -0000
@@ -758,6 +758,15 @@ __reclaim_stacks (void)
        }
     }

+  /* Reset the PIDs in any cached stacks.  */
+  list_for_each (runp, &stack_cache)
+    {
+      struct pthread *curp;
+
+      curp = list_entry (runp, struct pthread, list);
+      curp->pid = self->pid;
+    }
+
   /* Add the stack of all running threads to the cache.  */
   list_splice (&stack_used, &stack_cache);

Index: nptl/tst-getpid3.c
===================================================================
RCS file: nptl/tst-getpid3.c
diff -N nptl/tst-getpid3.c
--- /dev/null   1 Jan 1970 00:00:00 -0000
+++ nptl/tst-getpid3.c  31 Jul 2006 16:04:17 -0000
@@ -0,0 +1,112 @@
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include <pthread.h>
+#include <stdlib.h>
+
+static pid_t pid;
+
+static void *
+pid_thread (void *arg)
+{
+  if (pid != getpid ())
+    {
+      printf ("pid wrong in thread: %d / %d\n", pid, getpid ());
+      return (void *) 1L;
+    }
+
+  return NULL;
+}
+
+static int
+do_test (void)
+{
+  pthread_t thr;
+  int ret, status;
+  void *thr_ret;
+  pid_t child;
+
+  pid = getpid ();
+  ret = pthread_create (&thr, NULL, pid_thread, NULL);
+  if (ret)
+    {
+      printf ("pthread_create failed: %d\n", ret);
+      return 1;
+    }
+
+  ret = pthread_join (thr, &thr_ret);
+  if (ret)
+    {
+      printf ("pthread_create failed: %d\n", ret);
+      return 1;
+    }
+  else if (thr_ret)
+    {
+      printf ("thread getpid failed\n");
+      return 1;
+    }
+
+  child = fork ();
+  if (child == -1)
+    {
+      printf ("fork failed: %m\n");
+      return 1;
+    }
+  else if (child == 0)
+    {
+      if (pid == getpid ())
+       {
+         puts ("pid did not change after fork");
+         exit (1);
+       }
+
+      pid = getpid ();
+      ret = pthread_create (&thr, NULL, pid_thread, NULL);
+      if (ret)
+       {
+         printf ("pthread_create failed: %d\n", ret);
+         return 1;
+       }
+
+      ret = pthread_join (thr, &thr_ret);
+      if (ret)
+       {
+         printf ("pthread_create failed: %d\n", ret);
+         return 1;
+       }
+      else if (thr_ret)
+       {
+         printf ("thread getpid failed\n");
+         return 1;
+       }
+
+      return 0;
+    }
+
+  if (waitpid (child, &status, 0) != child)
+    {
+      puts ("waitpid failed");
+      kill (child, SIGKILL);
+      return 1;
+    }
+
+  if (!WIFEXITED (status))
+    {
+      if (WIFSIGNALED (status))
+       printf ("died from signal %s\n", strsignal (WTERMSIG (status)));
+      else
+       puts ("did not terminate correctly");
+      return 1;
+    }
+  if (WEXITSTATUS (status) != 0)
+    {
+      printf ("exit code %d\n", WEXITSTATUS (status));
+      return 1;
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
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From: Valerie Henson <val_henson@linux.intel.com>
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Subject: Re: [parisc-linux] [git patches] tulip fixes from parisc-linux
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Cc: Andrew Morton <akpm@osdl.org>,
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To: Kyle McMartin <kyle@parisc-linux.org>
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On Sun, Jul 30, 2006 at 02:54:56PM -0400, Kyle McMartin wrote:
> On Sun, Jul 30, 2006 at 11:35:32AM -0700, Andrew Morton wrote:
> > hm.  A couple of those patches have been futzing around in -mm for over a
> > year and have been nacked by Jeff and are a regular source of grumpygrams. 
> > I've been sitting on them in the pathetic hope that someone will one day
> > get down and address the bugs which they fix in an acceptable fashion,
> > whatever that is.
> > 
> 
> Jeff/Val seemed willing to merge the fixes as they stood. parisc-linux
> merged Francois' tulip workqueue patch some time ago, and have been
> running with it since without issue. This defers the tulip_select_media
> work to process context, and so should be less of an issue.

Hey Kyle,

Thanks for splitting these out.  Could you do us a favor and post the
patches themselves?  I'm not the only one who doesn't use git, and it
will be a lot less confusing if we can directly ack the patches in
email instead of referring to them third-hand.  Thanks,

-VAL
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Subject: [parisc-linux] /bin/sh: undefined symbol: execve
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I'm seeing the following fault and others like it in the libjava
testsuite, GCC head:

Executing on host: /home/dave/gcc-4.2/objdir/hppa-linux/libjava/testsuite/../lib
tool --silent --tag=GCJ --mode=link /home/dave/gcc-4.2/objdir/gcc/gcj -B/home/da
ve/gcc-4.2/objdir/hppa-linux/libjava/ -B/home/dave/gcc-4.2/objdir/gcc/ --encodin
g=UTF-8 -B/home/dave/gcc-4.2/objdir/hppa-linux/libjava/testsuite/../ /home/dave/
gcc-4.2/gcc/libjava/testsuite/libjava.lang/PR3096.java   -no-install --main=PR30
96 -g  -L/home/dave/gcc-4.2/objdir/hppa-linux/./libjava/.libs -lm   -o /home/dav
e/gcc-4.2/objdir/hppa-linux/libjava/testsuite/PR3096.exe    (timeout = 300)
/bin/sh: symbol lookup error: /bin/sh: undefined symbol: execve, version
libtool: ignoring unknown tag
output is:
/bin/sh: symbol lookup error: /bin/sh: undefined symbol: execve, version
libtool: ignoring unknown tag

FAIL: PR3096 compilation from source

I see these errors of gsyprf11 (SMP 64-bit kernel).  I don't see
the fails on hiauly6 (UP 32-bit kernel).  I believe that these
lookup errors are from the dynamic loader.  execve is undefined in
/bin/sh but it should be resolved by libc.

The fails aren't consistent from run to run, so there appears to
be a race condition somewhere in the lookup process.

Thoughts?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 8/6/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> I see these errors of gsyprf11 (SMP 64-bit kernel).  I don't see
> the fails on hiauly6 (UP 32-bit kernel).  I believe that these
> lookup errors are from the dynamic loader.  execve is undefined in
> /bin/sh but it should be resolved by libc.
>
> The fails aren't consistent from run to run, so there appears to
> be a race condition somewhere in the lookup process.
>
> Thoughts?

It is unlikely the generic code has a race condition. However, because
we return a "struct fdesc" from the lookup routines, we have to be
very careful. This small structure is copied by value, and the copy is
*not* atomic. There is code to ensure that the last thing we write
into the fdesc is the IP. Please look at the "struct fdesc" code in
libc-ports/sysdeps/hppa/dl-machine.h. It's all upstream.

Cheers,
Carlos.
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ok to apply ?  i dont want to step on anyone's toes ...
-mike

----------  Forwarded Message  ----------

Subject: [patch] enable pie scripts for hppa64
Date: Thursday 20 July 2006 01:18
From: Mike Frysinger <vapier@gentoo.org>
To: binutils@sourceware.org

ld/emulparams/hppalinux.sh was updated not too long ago to enable pie
 scripts, but hppa64linux.sh was skipped ... any reason to not do this ?
-mike

-------------------------------------------------------

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2006-07-19  Mike Frysinger  <vapier@gentoo.org>

	* emulparams/hppa64linux.sh (GENERATE_PIE_SCRIPT): Set to yes.

=2D-- ld/emulparams/hppa64linux.sh
+++ ld/emulparams/hppa64linux.sh
@@ -13,6 +13,7 @@
 ENTRY=3D"main"
 TEMPLATE_NAME=3Delf32
 GENERATE_SHLIB_SCRIPT=3Dyes
+GENERATE_PIE_SCRIPT=3Dyes
=20
 # We really want multiple .stub sections, one for each input .text section,
 # but for now this is good enough.

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Subject: Re: [parisc-linux] Fwd: [patch] enable pie scripts for hppa64
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On Wednesday 09 August 2006 10:46, Carlos O'Donell wrote:
> On 8/9/06, Mike Frysinger <vapier@gentoo.org> wrote:
> > ok to apply ?  i dont want to step on anyone's toes ...
>
> Don't worry about stepping on toes! You are doing good work looking
> for missing hppa features. Your patch looks good. Unfortunately we
> don't have an hppa64-linux userspace to take advantage of this, and I
> don't know if HPUX supports -fPIE and -pie.

right, i wasnt expecting a pie script to suddenly make everything work, but=
 i=20
know of no disadvantages and it would make [future] development easier

> Have you posted this on binutils for Dave to approve?

i posted it twice so far and havent heard back which is why i forwarded my=
=20
last one from July to the parisc list
=2Dmike

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Subject: Re: [parisc-linux] Fwd: [patch] enable pie scripts for hppa64
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> ld/emulparams/hppalinux.sh was updated not too long ago to enable pie
>  scripts, but hppa64linux.sh was skipped ... any reason to not do this ?

Have you tested this on hpux?  Inspite of the script's name, its
main use is on hpux.  There's no 64-bit runtime yet and as far as
I know PIE isn't used for kernel builds..

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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parisc-linux,

Every year we hold a parisc-linux BOF at
OLS (http://www.linuxsymposium.org)
I recently transcribed the notes from OLS 2006.

http://wiki.parisc-linux.org/OLS_20PARISC_20BOF_202006

Please read them, and if you feel daring try to work
on some of those important issues :)

Cheers,
Carlos.
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On Sat, Aug 12, 2006 at 03:17:37PM -0400, Carlos O'Donell wrote:
> Please read them, and if you feel daring try to work
> on some of those important issues :)
>

Thanks for taking the time to transcribe this!

Cheers,
	Kyle
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Subject: [parisc-linux] A small patch about Serial Mux availability for D
	class remote control card.
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Hi all,

May I suggest a small patch mentioning that the 'remote control card of D=

class also works thanks to this serial mux driver, something like:
--- ./drivers/serial/Kconfig.Orig       2006-08-17 12:09:06.000000000 +02=
00
+++ ./drivers/serial/Kconfig    2006-08-17 12:13:44.000000000 +0200
@@ -556,10 +556,11 @@
        default y
        ---help---
          Saying Y here will enable the hardware MUX serial driver for
-         the Nova and K class systems.  The hardware MUX is not 8250/165=
50
-         compatible therefore the /dev/ttyB0 device is shared between th=
e
-         Serial MUX and the PDC software console.  The following steps
-         need to be completed to use the Serial MUX:
+         the Nova, K class systems and D class with a 'remote control ca=
rd'.
+         The hardware MUX is not 8250/16550 compatible therefore
+         the /dev/ttyB0 device is shared between the Serial MUX and the =
PDC
+         software console.
+         The following steps need to be completed to use the Serial MUX:=


            1. create the device entry (mknod /dev/ttyB0 c 11 0)
            2. Edit the /etc/inittab to start a getty listening on /dev/t=
tyB0
=3D=3D=3D=3D<>=3D=3D=3D=3D

TIA,
    Joel=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous de=
venez aujourd'hui Scarlet One grace a un client existant de Scarlet, vous=
 recevez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite su=
r http://www.clubscarlet.be

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On Tue, Aug 22, 2006 at 06:00:38PM +0200, Joel Soete wrote:
> > No it can't. The CPU and memory controller have to agree on one size
> > for any given implementation. The IOMMU has to use this cacheline size
> > as well.
> >
> I doubt it could be important but is there a way to know the size of the
> cacheline 'negociated' between cpu and mc?

The cacheline size is decided by the HW designers.
Not negotiated at run time.

> PS: I forgot to ask: can you tell me in very short what IPI means in the linux
> kernel (iirc also related to spinlock management)?

Inter Processor Interrupt.
When one CPU wants to get the attention of another CPU and ask it
to do some house keeping work.

grant
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On Tue August 22 2006 11:12, Grant Grundler wrote:
> On Tue, Aug 22, 2006 at 06:00:38PM +0200, Joel Soete wrote:
> > > No it can't. The CPU and memory controller have to agree on one size
> > > for any given implementation. The IOMMU has to use this cacheline size
> > > as well.
> > >
> > I doubt it could be important but is there a way to know the size of the
> > cacheline 'negociated' between cpu and mc?
> 
> The cacheline size is decided by the HW designers.
> Not negotiated at run time.
> 

Joel,

If you look at the information available with the pdc_cache calls, it
should contain the cache line size.

The people in the hardware design department might not actually have
built it that way on a particular machine, but it _will_ work the 
same as what is reported.

> > PS: I forgot to ask: can you tell me in very short what IPI means in the linux
> > kernel (iirc also related to spinlock management)?
> 
> Inter Processor Interrupt.
> When one CPU wants to get the attention of another CPU and ask it
> to do some house keeping work.
> 

Which is why a processor busy waiting for a lock must run with the
interrupts enabled on pa-risc.

Mike
> grant
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Subject: [parisc-linux] Re: Bug#342545: qt-x11-free FTBFS
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The qt-x11-free package builds fine with a standard Debian setup.
Building with prctl --unaligned=signal makes the "bug" reproducible.

Christopher Martin writes:
> reassign 342545 libgcc2
> stop
> 
> On Thursday 10 August 2006 00:25, Steve Langasek wrote:
> > It hasn't been, because I can't see any way that libglu1-mesa could
> > have anything to do with the failure in question.  libglu1-mesa
> > should not be a dependency of the tool that's failing with SIGBUS in
> > the build log.
> >
> > I would suggest that someone should investigate this further and get
> > a clear answer on the nature of the bug, because I really don't buy
> > that libgcc skew is to blame.
> 
> Fair enough, but before I take off for the weekend, I'm sending this 
> report back to libgcc2, since it seems to have been established long 
> ago that this isn't a Qt bug, and it really should be assigned to 
> something in the toolchain. I note that, for a time, the problem was 
> thought to be in glibc, so perhaps the glibc team would again be worth 
> consulting.
> 
> Cheers,
> Christopher Martin
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Subject: Re: [parisc-linux] Just A suggestion to highlight mb() and	cpu_relax()
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Kyle McMartin wrote:
> On Thu, Aug 24, 2006 at 09:47:21AM -0600, Matthew Wilcox wrote:
> 
>>I like the idea.  How about using the function name instead, though?
>>
>>+#define __mb(s)           __asm__ __volatile__(s "()":::"memory") /* barrier() */
>>+#define mb()	__mb("mb")
>>+#define rmb()          __mb("rmb")
>>+#define wmb()          __mb("wmb")
>>+#define smp_mb()       __mb("smp_mb")
> 
> 
Love it too (would be my next q)
anyway won't we need some comment charater: I prefer ';' (my oldfashion) but may be better '#'
+#define __mb(s)           __asm__ __volatile__("# " s "()":::"memory")	/* barrier() */

> I liek it.

Will you do it or do you prefer I send you (tomorrow) a patch?

TIA,
	Joel
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> parisc-linux@lists.parisc-linux.org
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> 
> 
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Carlos: for future hppa patches, would you prefer i send to libc-ports or t=
o=20
the parisc list ?

this patch is against latest mman.h in the ports cvs ... the one in the par=
isc=20
cvs is a little bit more outdated
=2Dmike

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Index: sysdeps/unix/sysv/linux/hppa/bits/mman.h
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /cvs/glibc/ports/sysdeps/unix/sysv/linux/hppa/bits/mman.h,v
retrieving revision 1.5
diff -u -p -r1.5 mman.h
=2D-- sysdeps/unix/sysv/linux/hppa/bits/mman.h	24 May 2006 15:31:25 -0000	1=
=2E5
+++ sysdeps/unix/sysv/linux/hppa/bits/mman.h	25 Aug 2006 04:46:25 -0000
@@ -34,40 +34,66 @@
=20
 #define MAP_SHARED	0x01		/* Share changes */
 #define MAP_PRIVATE	0x02		/* Changes are private */
=2D#define MAP_TYPE	0x03		/* Mask for type of mapping */
+#ifdef __USE_MISC
+# define MAP_TYPE	0x03		/* Mask for type of mapping */
+#endif
+
+/* Other flags.  */
 #define MAP_FIXED	0x04		/* Interpret addr exactly */
=2D#define MAP_ANONYMOUS	0x10		/* don't use a file */
+#ifdef __USE_MISC
+# define MAP_FILE	0
+# define MAP_ANON	MAP_ANONYMOUS
+# define MAP_ANONYMOUS	0x10		/* don't use a file */
+#endif
=20
=2D#define MAP_DENYWRITE	0x0800		/* ETXTBSY */
=2D#define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
=2D#define MAP_LOCKED	0x2000		/* pages are locked */
=2D#define MAP_NORESERVE	0x4000		/* don't check for reservations */
=2D#define MAP_GROWSDOWN	0x8000		/* stack-like segment */
=2D#define MAP_POPULATE	0x10000		/* populate (prefault) pagetables */
=2D#define MAP_NONBLOCK	0x20000		/* do not block on IO */
+/* These are Linux-specific.  */
+#ifdef __USE_MISC
+# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
+# define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
+# define MAP_LOCKED	0x2000		/* pages are locked */
+# define MAP_NORESERVE	0x4000		/* don't check for reservations */
+# define MAP_GROWSDOWN	0x8000		/* stack-like segment */
+# define MAP_POPULATE	0x10000		/* populate (prefault) pagetables */
+# define MAP_NONBLOCK	0x20000		/* do not block on IO */
+#endif
=20
+/* Flags to `msync'.  */
 #define MS_SYNC		1		/* synchronous memory sync */
 #define MS_ASYNC	2		/* sync memory asynchronously */
 #define MS_INVALIDATE	4		/* invalidate the caches */
=20
=2D#define MCL_CURRENT	1		/* lock all current mappings */
=2D#define MCL_FUTURE	2		/* lock all future mappings */
+/* Flags for `mlockall'.  */
+#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
+#define MCL_FUTURE	2		/* Lock all additions to address
+					   space.  */
=20
=2D/* Advice to "madvise" */
+/* Flags for `mremap'.  */
+#ifdef __USE_GNU
+# define MREMAP_MAYMOVE 1
+# define MREMAP_FIXED	2
+#endif
+
+/* Advice to `madvise'.  */
 #ifdef __USE_BSD
=2D# define MADV_NORMAL	  0	/* no further special treatment */
=2D# define MADV_RANDOM	  1	/* expect random page references */
=2D# define MADV_SEQUENTIAL  2	/* expect sequential page references */
=2D# define MADV_WILLNEED	  3	/* will need these pages */
=2D# define MADV_DONTNEED	  4	/* dont need these pages */
=2D# define MADV_SPACEAVAIL  5	/* insure that resources are reserved */
=2D# define MADV_VPS_PURGE	  6	/* Purge pages from VM page cache */
=2D# define MADV_VPS_INHERIT 7	/* Inherit parents page size */
=2D# define MADV_REMOVE	  9	/* Remove these pages and resources.  */
+# define MADV_NORMAL	 0	/* No further special treatment.  */
+# define MADV_RANDOM	 1	/* Expect random page references.  */
+# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
+# define MADV_WILLNEED	 3	/* Will need these pages.  */
+# define MADV_DONTNEED	 4	/* Don't need these pages.  */
+# define MADV_REMOVE	 9	/* Remove these pages and resources.  */
 # define MADV_DONTFORK	 10	/* Do not inherit across fork.  */
 # define MADV_DOFORK	 11	/* Do inherit across fork.  */
 #endif
=20
+/* The POSIX people had to invent similar names for the same things.  */
+#ifdef __USE_XOPEN2K
+# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
+# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
+# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
+# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
+# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
+#endif
+
 /* The range 12-64 is reserved for page size specification. */
 #define MADV_4K_PAGES   12              /* Use 4K pages  */
 #define MADV_16K_PAGES  14              /* Use 16K pages */
@@ -77,16 +103,3 @@
 #define MADV_4M_PAGES   22              /* Use 4 Megabyte pages */
 #define MADV_16M_PAGES  24              /* Use 16 Megabyte pages */
 #define MADV_64M_PAGES  26              /* Use 64 Megabyte pages */
=2D
=2D/* compatibility flags */
=2D#define MAP_ANON	MAP_ANONYMOUS
=2D#define MAP_FILE	0
=2D#define MAP_VARIABLE	0
=2D
=2D/* Flags for `mremap'.  */
=2D#ifdef __USE_GNU
=2D# define MREMAP_MAYMOVE 1
=2D# define MREMAP_FIXED	2
=2D#endif
=2D
=2D

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Subject: Re: [parisc-linux] Re: Bug#342545: qt-x11-free FTBFS
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Xref: news.gmane.org gmane.linux.ports.parisc:23901

> That would be wonderful if you, or another hppa porter, could track down
> where the bug lies.  libgcc2 is almost certainly the wrong package, since
> nothing should be *using* libgcc2 in a fresh build of qt-x11-free; it may be
> a bug in libgcc4 instead, but I think that's yet to be determined.  In the
> meantime, I think it's best to reassign this back to qt-x11-free.

This might be a nan bug.  There is one GCC nan fix that's only
installed on the trunk:

2006-05-24  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/27627
	* pa/pa-modes.def: Use mips_single_format, mips_double_format and
	mips_quad_format formats instead of ieee_single_format,
	ieee_double_format and ieee_quad_format formats, respectively.

However, I think the real bug is here:

> > 0x40cb2150 in negNan () at tools/qlocale.cpp:131
> > 131                 *((const double *) le_neg_nan_bytes));

PA-RISC requires strict alignment and it's highly likely that
the pointer le_neg_nan_bytes isn't aligned to an eight byte
boundary.  You could see the faulting insn by disassembling
around 0x40cb2150 to be sure.  The nan problem fixed by the
above change would cause a SIGFPE instead of a SIGBUS.

I'm fairly certain we have a bug in handling unaligned fixups
for doubles in the kernel.  This caused a problem for libffi.
This depends on whether the kernel is 32/64 bits.

As Kyle pointed out, unaligned fixups by the kernel are expensive
and they should be avoided.  tools/qlocale.cpp appears to be a
qt-x11-free routine, so I agree that the reassignment was correct.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Subject: [parisc-linux] Re: update mman.h in latest glibc cvs
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On 8/25/06, Mike Frysinger <vapier@gentoo.org> wrote:
> Carlos: for future hppa patches, would you prefer i send to libc-ports or to
> the parisc list ?
>
> this patch is against latest mman.h in the ports cvs ... the one in the parisc
> cvs is a little bit more outdated

I'm the libc-ports hppa maintainer, and posting to libc-ports is the
correct procedure. If you would like you can also CC parisc-linux to
keep people up to date on changes.

There are a couple of problems with your patch:
1. You need a ChangeLog.
2. You will need FSF assignments if you don't already have them for GLIBC.
3. Feel free to respond to the following..

The following is a bug.
+# define MAP_ANON	MAP_ANONYMOUS
+# define MAP_ANONYMOUS	0x10		/* don't use a file */

Please avoid superflous style changes.
-/* Advice to "madvise" */
+/* Advice to `madvise'.  */

Are you sure nothing uses these?
-#define MAP_VARIABLE	0
-# define MADV_VPS_PURGE	  6	/* Purge pages from VM page cache */
-# define MADV_VPS_INHERIT 7	/* Inherit parents page size */

Thanks for working on updating mman.h!
What we really need is people building glibc and debugging 'make -k
check' failures! :)

Cheers,
Carlos.
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On Friday 25 August 2006 16:01, Carlos O'Donell wrote:
> 1. You need a ChangeLog.

indeed ... i wanted to see if the patch was correct first as writing Change=
Log=20
entries is boring ;)

> 2. You will need FSF assignments if you don't already have them for GLIBC.

i dont have in place specifically for glibc, ive just contributed my previo=
us=20
things as "small" and/or "obvious" ... i can simply release into the public=
=20
domain; all that matters to me is that things get fixed

> The following is a bug.
> +# define MAP_ANON	MAP_ANONYMOUS
> +# define MAP_ANONYMOUS	0x10		/* don't use a file */

yes, that should be reversed

> Please avoid superflous style changes.

it isnt superfluous, it is the "GNU standard" and the way all other arch=20
mman.h headers are done ... so while i personally consider the GNU coding=20
standard complete garbage, glibc is a GNU project and adheres pretty rigidl=
y=20
to the GNU coding standard

> Are you sure nothing uses these?
> -#define MAP_VARIABLE	0
> -# define MADV_VPS_PURGE	  6	/* Purge pages from VM page cache */
> -# define MADV_VPS_INHERIT 7	/* Inherit parents page size */

i was syncing to other architectures ... but since parisc is the only one (=
in=20
the kernel headers) that defines these three, i guess it's appropriate to=20
keep them for parisc
=2Dmike

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Subject: Re: [parisc-linux] Just A suggestion to highlight mb() and
	cpu_relax() in s files?
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> On Thu, Aug 24, 2006 at 09:47:21AM -0600, Matthew Wilcox wrote:
> > I like the idea.  How about using the function name instead, though?
> > 
> > +#define __mb(s)           __asm__ __volatile__(s "()":::"memory") /*=

barrier() */
> > +#define mb()	__mb("mb")
> > +#define rmb()          __mb("rmb")
> > +#define wmb()          __mb("wmb")
> > +#define smp_mb()       __mb("smp_mb")
> 
> I liek it.
> 
--- include/asm-parisc/system.h.Orig    2006-08-24 08:43:12.000000000 +02=
00
+++ include/asm-parisc/system.h 2006-08-25 12:05:51.000000000 +0200
@@ -141,12 +141,13 @@
 ** The __asm__ op below simple prevents gcc/ld from reordering
 ** instructions across the mb() "call".
 */
-#define mb()           __asm__ __volatile__("":::"memory")     /* barrie=
r() */
-#define rmb()          mb()
-#define wmb()          mb()
-#define smp_mb()       mb()
-#define smp_rmb()      mb()
-#define smp_wmb()      mb()
+#define __mb(s)                __asm__ __volatile__("# " s "()":::"memor=
y") 
  /* barrier() */
+#define mb()           __mb("mb")
+#define rmb()          __mb("rmb")
+#define wmb()          __mb("wmb")
+#define smp_mb()       __mb("smp_mb")
+#define smp_rmb()      __mb("smp_rmb")
+#define smp_wmb()      __mb("smp_wmb")
 #define smp_read_barrier_depends()     do { } while(0)
 #define read_barrier_depends()         do { } while(0)

--- include/asm-parisc/processor.h.Orig 2006-08-24 08:47:36.000000000 +02=
00
+++ include/asm-parisc/processor.h      2006-08-25 11:07:28.000000000 +02=
00
@@ -330,7 +330,7 @@
 #define KSTK_EIP(tsk)  ((tsk)->thread.regs.iaoq[0])
 #define KSTK_ESP(tsk)  ((tsk)->thread.regs.gr[30])

-#define cpu_relax()    barrier()
+#define cpu_relax()    __mb("cpu_relax")

 #endif /* __ASSEMBLY__ */

=3D=3D=3D=3D <> =3D=3D=3D=3D

(also attached in case of bad wraping ;-)

Cheers,
    Joel=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous de=
venez aujourd'hui Scarlet One grace a un client existant de Scarlet, vous=
 recevez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite su=
r http://www.clubscarlet.be
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--- include/asm-parisc/system.h.Orig	2006-08-24 08:43:12.000000000 +0200=0A=
+++ include/asm-parisc/system.h	2006-08-25 12:05:51.000000000 +0200=0A@@ =
-141,12 +141,13 @@=0A ** The __asm__ op below simple prevents gcc/ld from=
 reordering=0A ** instructions across the mb() "call".=0A */=0A-#define m=
b()		__asm__ __volatile__("":::"memory")	/* barrier() */=0A-#define rmb()=
		mb()=0A-#define wmb()		mb()=0A-#define smp_mb()	mb()=0A-#define smp_rmb=
()	mb()=0A-#define smp_wmb()	mb()=0A+#define __mb(s)		__asm__ __volatile_=
_("# " s "()":::"memory")	/* barrier() */=0A+#define mb()		__mb("mb")=0A+=
#define rmb()		__mb("rmb")=0A+#define wmb()		__mb("wmb")=0A+#define smp_m=
b()	__mb("smp_mb")=0A+#define smp_rmb()	__mb("smp_rmb")=0A+#define smp_wm=
b()	__mb("smp_wmb")=0A #define smp_read_barrier_depends()	do { } while(0)=
=0A #define read_barrier_depends()		do { } while(0)=0A =0A--- include/asm=
-parisc/processor.h.Orig	2006-08-24 08:47:36.000000000 +0200=0A+++ includ=
e/asm-parisc/processor.h	2006-08-25 11:07:28.000000000 +0200=0A@@ -330,7 =
+330,7 @@=0A #define KSTK_EIP(tsk)	((tsk)->thread.regs.iaoq[0])=0A #defin=
e KSTK_ESP(tsk)	((tsk)->thread.regs.gr[30])=0A =0A-#define cpu_relax()	ba=
rrier()=0A+#define cpu_relax()	__mb("cpu_relax")=0A =0A #endif /* __ASSEM=
BLY__ */=0A =0A
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_______________________________________________
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Subject: Re: [parisc-linux] update mman.h in latest glibc cvs
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On Fri, Aug 25, 2006 at 09:28:14AM -0500, Michael S. Zick wrote:
> Those are the pages which would need the 'o' bit set
> for the newest processors.

Michael,
Please read:
http://lists.parisc-linux.org/pipermail/parisc-linux/2003-February/019183.html
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2004-August/034461.html

grant
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From: Joel Soete <soete.joel@scarlet.be>
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Subject: [parisc-linux] How hp implemented 'undefined instruction'?
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Hello all,

In cpu books (parisc2.0.pdf or pa11_acd.pdf), in some well defined conditions, an insn can be an 'undefined instruction'.

Those books said about this:
--- snip ---
Within each major opcode, there may be undefined opcode extensions and
modifiers (these are undefined instructions). Interpretation of these opcodes
is left to the implementor, but system integrity is not compromised.
An undefined instruction, or sequence of undefined instructions, executed at a
given privilege level has no effect on system state other than what would have
been produced by a sequence of defined instructions running at the same
privilege level. This limits the possible side-effects that could
result from undefined instructions.

Undefined operations are equivalently specified. These result from normally
defined instructions but with operands or specifiers that are explicitly
disallowed.
--- snip ---

In "Interpretation of these opcodes is left to the implementor", I understand HP's integration of those cpu n their system?

But the text make me thought they aren't trap?

Does system behave like it's some kind of nop?

TIA,
	Joel
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Subject: Re: [parisc-linux] How hp implemented 'undefined instruction'?
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On Sat, Aug 26, 2006 at 01:05:55PM +0000, Joel Soete wrote:
> Within each major opcode, there may be undefined opcode extensions and
> modifiers (these are undefined instructions). Interpretation of these 
> opcodes
> is left to the implementor, but system integrity is not compromised.
> An undefined instruction, or sequence of undefined instructions, executed 
> at a
> given privilege level has no effect on system state other than what would 
> have
> been produced by a sequence of defined instructions running at the same
> privilege level. This limits the possible side-effects that could
> result from undefined instructions.
> 
> Undefined operations are equivalently specified. These result from normally
> defined instructions but with operands or specifiers that are explicitly
> disallowed.
> --- snip ---

I believe what they mean here is "Implementation-specific" opcodes. If you
look in the PCXL2 ERS, there are unarchitected additions to the instruction
set.

I hand crafted a binary using some of these extended insns, and they didn't
cause a SIGILL on a PA8500 (vastly different from PCXL2...) I believe the
insn in question was a little endian LDW.

However, if you craft an insn outside of the defined major opcodes, you
definitely will get a SIGILL trap.

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On Saturday 26 August 2006 11:09, Carlos O'Donell wrote:
> I appreciate it if you say "Is this patch correct?" or some indication
> that it is not final. I spend a different amount of time reviewing
> final patches than just initial hacks.

sorry, my mistake ... i'll keep that in mind in the future

> > > Please avoid superflous style changes.
> >
> > it isnt superfluous, it is the "GNU standard" and the way all other arch
> > mman.h headers are done ... so while i personally consider the GNU codi=
ng
> > standard complete garbage, glibc is a GNU project and adheres pretty
> > rigidly to the GNU coding standard
>
> I don't see a requirement for left single quote and right single quote
> in comments?

as i said i was simply doing exactly what every other arch port in glibc is=
=20
doing ... if you want to keep hppa different, well you're the maintainer ;)

> Thank you. Could you put together another patch please? If you haven't
> done a build test please tell me.

i just do cross-compile builds as my hppa's are too painfully slow to do=20
development natively :)
=2Dmike

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On Sat August 26 2006 14:40, Joel Soete wrote:
>

That seems to be two different situations.
Can be hard to understand even for native English readers.
 
> 
> Ok I understand what you mean but I thought to such e.g. ldcw:
> "The address must be 16-byte aligned. If the address is unaligned, the operation of the instruction is undefined."
> (just for example)
> 

Here, it is "the operation" (how it accomplishes its task) that is undefined.
The instruction definition lists the logical steps the instruction follows when
the operation is aligned.  
There is no list of logical steps for when it is not aligned.

> or may be a better example ssm/mtsm:
> "Setting the PSW Q-bit, PSW{60}, to 1 with this instruction, if it was not already 1, is an undefined operation."
> 

Here, it is what the "result of the operation" is that is undefined.
A software attempt to make a change 0 to 1 and how the hardware follows
that change attempt is not defined.

> I am still trying to understand this soft lockup bug and why this lock is not unlocked? 
>

Ah, yes, the key question.
The results of the tests that you are running now should help us understand the answer.

> (could it be because PSW_I bit is not enabled when we exepted? 
>

No.
But if it is not enabled during the "busy wait" the waiting cpu
will not "see" IPI messages while waiting for the lock.

The "busy wait" time should not be long enough to matter if the
lock is not broken.
If the "busy wait" time happens to be too long with the IPI
messages disabled, then things begin to break.

> The 'atomic' ldcw(,co) doesn't operate as we expect?) 
> 

My favorite theory is that the lock release does not operate
as we expect, but that is only a theory.

> Thanks,
> 	Joel
> 
Mike
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Hi all,

I have an issue on my D270 with gettimeofday(). It looks like it's returning the time added with a few amount of seconds (usually 27) each now and then when there is some load on the system.

I've made a simple test program :
        while(gettimeofday(&tv, NULL) == 0) {
                printf("Time : %d sec, %d usec\n", tv.tv_sec, tv.tv_usec);
                sleep(1);
        }

This is the output I get when running it :

Time : 1156682268 sec, 88967 usec
Time : 1156682269 sec, 92621 usec
Time : 1156682270 sec, 95641 usec
Time : 1156682271 sec, 97411 usec
Time : 1156682272 sec, 101165 usec
Time : 1156682273 sec, 103535 usec
Time : 1156682274 sec, 107368 usec
Time : 1156682275 sec, 109810 usec
Time : 1156682276 sec, 112610 usec
Time : 1156682277 sec, 113504 usec
Time : 1156682278 sec, 115311 usec
Time : 1156682279 sec, 117252 usec
Time : 1156682280 sec, 120393 usec
Time : 1156682307 sec, 965178 usec       <-- there is an issue
Time : 1156682282 sec, 123684 usec
Time : 1156682283 sec, 126481 usec
Time : 1156682284 sec, 128473 usec
Time : 1156682285 sec, 130257 usec
Time : 1156682286 sec, 133017 usec
Time : 1156682287 sec, 135863 usec



Depending on the load, this occures more or less often.
This is the kernel I used :
Linux hulk 2.6.17.11-pa6 #4 Sun Aug 27 12:19:25 CEST 2006 parisc PA8000 (PCX-U) GNU/Linux
However, I've seen this issue since quite some time.


I tried to reproduce the same issue on my C3600 with a similar kernel config and I wasn't able to do so even with very high load.

Also, I've changed gettimeoffset() in arch/parisc/kernel/time.c to return only 0 and that avoids the problem.

Could someone please look into this ?


Thanks,
  Guy









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Hi!  As an attempt to help the glibc/NPTL efforts, I've upgraded to a
recent kernel in order to make sure problems I'm seeing that are
triggered by kernel bugs haven't already been fixed.  However, I can no
longer make it through a glibc make check pass.

I have reproduced this twice now, and both times it happens while
running the tst-gettext4.sh script.  It doesn't seem to matter whether
the system has a long or short uptime, or the amount of work done.

Bug report particulars follow:

$ uname -a
Linux test148.lamont 2.6.18-rc4-pa4 #2 Sat Aug 26 08:52:30 EDT 2006 parisc GNU/Linux

This is using the current gcc-4.1 in edgy with a binutils snapshot from
mid-July.

The machine is a j6700.

I am using a serial console.

jbailey@test148:/var/lib/dpkg/info$ cat /proc/cmdline 
root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinuz-2.6.18-rc4-pa4

Noise from the console:

test148.lamont login: kernel BUG at mm/mmap.c:1970!
Backtrace:
 [<1015cd58>] exit_mmap+0x17c/0x19c
 [<10123a70>] mmput+0x48/0xbc
 [<10128f18>] do_exit+0x114/0x8ac
 [<10129728>] do_group_exit+0x78/0xbc
 [<101348c0>] get_signal_to_deliver+0x2c8/0x4cc
 [<1010fab0>] do_signal+0x68/0x814
 [<1010c384>] syscall_do_signal+0x54/0xa0
Kernel panic - not syncing: BUG!
 <3>BUG: scheduling while atomic: ld.so.1/0x00000100/10062
Backtrace:
 [<101023a0>] schedule+0x538/0x724
 [<10138e48>] flush_cpu_workqueue+0xa0/0xf0
 [<10138ee4>] cancel_rearming_delayed_workqueue+0x28/0x60
 [<10231750>] lcd_print+0x58/0x178
 [<10232c44>] process_shutdown+0x3c/0x6c
 [<1012c33c>] tasklet_action+0x6c/0xf4
 [<1012c198>] __do_softirq+0xd8/0xec
 [<10104670>] __lock_text_end+0x48/0x4c
 [<1010b068>] intr_return+0x0/0xc

System map is at http://people.ubuntu.com/~jbailey/System.map-2.6.18-rc4-pa4

The kernel was built with the c3000_defconfig.

-- 
I do not agree with a word you say, but I will defend to the death your
right to say it. 
 - Voltaire
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On 8/27/06, Guy Martin <gmsoft@tuxicoman.be> wrote:
> I have an issue on my D270 with gettimeofday(). It looks like it's returning the time added with a few amount of seconds (usually 27) each now and then when there is some load on the system.
>
> I've made a simple test program :
>         while(gettimeofday(&tv, NULL) == 0) {
>                 printf("Time : %d sec, %d usec\n", tv.tv_sec, tv.tv_usec);
>                 sleep(1);
>         }
>

I tried this on my a500 and c3k but failed to reproduce the problem.
Can you reproduce the problem consistently on your c3600?
If you can, could you add a 'printk' to the time routines, try to get
the kernel to print out the same sequence so we can rule out userspace
interactions.

Cheers,
Carlos.
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Carlos,

I wasn't able to reproduce at all on my C3600.

So far I was able to workaround the problem by making gettimeoffset() return 0 instead of the actual result. This is in arch/parisc/kernel/time.c.
It looks like gettimeoffset() returns a very large value when there is load on the system.
This value seems to be adding 27 secs to the actual time one every 5 to 10 seconds. I poll every second.

If possible I'd like to avoid rebooting that box but let me know if there is more info I can provide.


Thanks,
  Guy

On Sun, 27 Aug 2006 15:31:07 -0400
"Carlos O'Donell" <carlos@systemhalted.org> wrote:

> On 8/27/06, Guy Martin <gmsoft@tuxicoman.be> wrote:
> > I have an issue on my D270 with gettimeofday(). It looks like it's returning the time added with a few amount of seconds (usually 27) each now and then when there is some load on the system.
> >
> > I've made a simple test program :
> >         while(gettimeofday(&tv, NULL) == 0) {
> >                 printf("Time : %d sec, %d usec\n", tv.tv_sec, tv.tv_usec);
> >                 sleep(1);
> >         }
> >
> 
> I tried this on my a500 and c3k but failed to reproduce the problem.
> Can you reproduce the problem consistently on your c3600?
> If you can, could you add a 'printk' to the time routines, try to get
> the kernel to print out the same sequence so we can rule out userspace
> interactions.
> 
> Cheers,
> Carlos.

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On 8/27/06, Jeff Bailey <jbailey@raspberryginger.com> wrote:
> Hi!  As an attempt to help the glibc/NPTL efforts, I've upgraded to a
> recent kernel in order to make sure problems I'm seeing that are
> triggered by kernel bugs haven't already been fixed.  However, I can no
> longer make it through a glibc make check pass.
>
> I have reproduced this twice now, and both times it happens while
> running the tst-gettext4.sh script.  It doesn't seem to matter whether
> the system has a long or short uptime, or the amount of work done.
>
> Bug report particulars follow:
>
> $ uname -a
> Linux test148.lamont 2.6.18-rc4-pa4 #2 Sat Aug 26 08:52:30 EDT 2006 parisc GNU/Linux
>
> This is using the current gcc-4.1 in edgy with a binutils snapshot from
> mid-July.

Totally out of curiosity, if you have a chance to rebuild your kernel
with gcc-3.X and see if it dies the same way. I've been spotting some
strange variations between kernels built with gcc-3.X and gcc-4.X...

> I am using a serial console.
>
> jbailey@test148:/var/lib/dpkg/info$ cat /proc/cmdline
> root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinuz-2.6.18-rc4-pa4
>
> Noise from the console:
>
> test148.lamont login: kernel BUG at mm/mmap.c:1970!
> Backtrace:
>  [<1015cd58>] exit_mmap+0x17c/0x19c
>  [<10123a70>] mmput+0x48/0xbc
>  [<10128f18>] do_exit+0x114/0x8ac
>  [<10129728>] do_group_exit+0x78/0xbc
>  [<101348c0>] get_signal_to_deliver+0x2c8/0x4cc
>  [<1010fab0>] do_signal+0x68/0x814
>  [<1010c384>] syscall_do_signal+0x54/0xa0
> Kernel panic - not syncing: BUG!

Died in signal code, why am I not surprised? ;)

>  <3>BUG: scheduling while atomic: ld.so.1/0x00000100/10062
> Backtrace:
>  [<101023a0>] schedule+0x538/0x724
>  [<10138e48>] flush_cpu_workqueue+0xa0/0xf0
>  [<10138ee4>] cancel_rearming_delayed_workqueue+0x28/0x60
>  [<10231750>] lcd_print+0x58/0x178
>  [<10232c44>] process_shutdown+0x3c/0x6c
>  [<1012c33c>] tasklet_action+0x6c/0xf4
>  [<1012c198>] __do_softirq+0xd8/0xec
>  [<10104670>] __lock_text_end+0x48/0x4c
>  [<1010b068>] intr_return+0x0/0xc

This is unrelated. For some reason the led/lcd tasklet doesn't
'shutdown' properly on panic. I wonder if it's hooked to the panic
handler correctly (if it should)...

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/

<jbailey> Insert tab A into slot B doesn't take too long to figure
out.  Leave a couple horny kids in a room for an hour, they don't need
instructions.
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> So far I was able to workaround the problem by making gettimeoffset() return 0 instead of the actual result. This is in arch/parisc/kernel/time.c.
> It looks like gettimeoffset() returns a very large value when there is load on the system.
> This value seems to be adding 27 secs to the actual time one every 5 to 10 seconds. I poll every second.

Is this a 64 or 32 bit kernel?  The size of long changes.  There may
be a subtle issue with cr16.  It's reads as a 64 bit register.  However,
on writes, only the least significant matter.  I could see missing
a timer interrupt if we get close too close to the compare value.
The 27 seconds might be the time for the counter to wrap.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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This is a 32 bit kernel.

On Sun, 27 Aug 2006 17:07:41 -0400 (EDT)
"John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:

> > So far I was able to workaround the problem by making gettimeoffset() return 0 instead of the actual result. This is in arch/parisc/kernel/time.c.
> > It looks like gettimeoffset() returns a very large value when there is load on the system.
> > This value seems to be adding 27 secs to the actual time one every 5 to 10 seconds. I poll every second.
> 
> Is this a 64 or 32 bit kernel?  The size of long changes.  There may
> be a subtle issue with cr16.  It's reads as a 64 bit register.  However,
> on writes, only the least significant matter.  I could see missing
> a timer interrupt if we get close too close to the compare value.
> The 27 seconds might be the time for the counter to wrap.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> On Mon, Jun 26, 2006 at 07:59:31PM -0400, John David Anglin wrote:
> > I haven't been able to boot recent consoles of my c3k (oh, I did
> > accidently boot a 64-bit kernel built for an A500 without frame
> > buffer support).  The last build that successfully boots is
> > 2.6.17-rc3-pa3.  The last messages that is see are:
> > 
> <snip...>
> > Any ideas as to what's broken in later kernels?
> > 
> 
> Apparently there has been some changes to the way VTs are handled,
> as I saw someone else complaining about this in a completely
> unrelated place. I'll take a look into it at some point this weekend.

This happened between 2.6.17-rc3-pa3 and 2.6.17-rc4-pa0.  Removing
the unsupported A1262A allowed 2.6.17-pa6 to boot.  It doesn't boot
with the card installed.  This is using the c3000_defconfig kernels.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > So far I was able to workaround the problem by making gettimeoffset() return 0 instead of the actual result. This is in arch/parisc/kernel/time.c.
> > It looks like gettimeoffset() returns a very large value when there is load on the system.
> > This value seems to be adding 27 secs to the actual time one every 5 to 10 seconds. I poll every second.
> 
> Is this a 64 or 32 bit kernel?  The size of long changes.  There may
> be a subtle issue with cr16.  It's reads as a 64 bit register.  However,
> on writes, only the least significant matter.  I could see missing
> a timer interrupt if we get close too close to the compare value.
> The 27 seconds might be the time for the counter to wrap.

0x100000000 / 27 = 159072862.  The D270 is a 160 MHz machine isn't it?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] What happen to the Penguin
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On Sun, Aug 27, 2006 at 05:21:43PM -0400, John David Anglin wrote:
> This happened between 2.6.17-rc3-pa3 and 2.6.17-rc4-pa0.  Removing
> the unsupported A1262A allowed 2.6.17-pa6 to boot.  It doesn't boot
> with the card installed.  This is using the c3000_defconfig kernels.
> 

Can you remove the PCI_DEVICE(...) lines with PCI_DEVICE_HP_VISUALIZEFX*
in drivers/video/console/sticore.c and see what happens? That should
at least allow them to boot.
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Xref: news.gmane.org gmane.linux.ports.parisc:23920

Could someone taller than me please review this?

-- Kyle

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 663631c..5405a99 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1089,14 +1089,13 @@ intr_do_signal:
 	CMPIB= 0,%r20,intr_restore /* backward */
 	nop
 
-	copy	%r0, %r24			/* unsigned long in_syscall */
-	copy	%r16, %r25			/* struct pt_regs *regs */
+	copy	%r0, %r25			/* unsigned long in_syscall */
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
 
-	BL	do_signal,%r2
-	copy	%r0, %r26			/* sigset_t *oldset = NULL */
+	BL	do_notify_resume,%r2
+	copy	%r16, %r26			/* struct pt_regs *regs */
 
 	b	intr_check_sig
 	nop
@@ -2267,16 +2266,14 @@ syscall_do_signal:
 	   consistent with all the relevant state of the process
 	   before the syscall.  We need to verify this. */
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1 
-	ldo	TASK_REGS(%r1), %r25		/* struct pt_regs *regs */
-	reg_save %r25
-
-	ldi	1, %r24				/* unsigned long in_syscall */
+	ldo	TASK_REGS(%r1), %r26		/* struct pt_regs *regs */
+	reg_save %r26
 
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
-	BL	do_signal,%r2
-	copy	%r0, %r26			/* sigset_t *oldset = NULL */
+	BL	do_notify_resume,%r2
+	ldi	1, %r25				/* long in_syscall */
 
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
 	ldo	TASK_REGS(%r1), %r20		/* reload pt_regs */
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 9a04272..e8de263 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -58,8 +58,6 @@ #define _BLOCKABLE (~(sigmask(SIGKILL) |
  * this. */
 #define A(__x)	((unsigned long)(__x))
 
-int do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall);
-
 /*
  * Atomically swap in the new signal mask, and wait for a signal.
  */
@@ -93,21 +91,20 @@ #endif
 			return -EFAULT;
 	}
 
+	/* sigmask(SIGKILL) | sigmask(SIGSTOP) */
 	sigdelsetmask(&newset, ~_BLOCKABLE);
 
 	spin_lock_irq(&current->sighand->siglock);
-	saveset = current->blocked;
+	current->saved_sigmask = current->blocked;
 	current->blocked = newset;
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 
-	regs->gr[28] = -EINTR;
-	while (1) {
-		current->state = TASK_INTERRUPTIBLE;
-		schedule();
-		if (do_signal(&saveset, regs, 1))
-			return -EINTR;
-	}
+	current->state = TASK_INTERRUPTIBLE;
+	schedule();
+	set_thread_flag(TIF_RESTORE_SIGMASK);
+
+	return -ERESTARTNOHAND;
 }
 
 /*
@@ -528,12 +525,13 @@ handle_signal(unsigned long sig, siginfo
  * us due to the magic of delayed branching.
  */
 
-asmlinkage int
-do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall)
+asmlinkage void
+do_signal(struct pt_regs *regs, long in_syscall)
 {
 	siginfo_t info;
 	struct k_sigaction ka;
 	int signr;
+	sigset_t *oldset;
 
 	DBG(1,"\ndo_signal: oldset=0x%p, regs=0x%p, sr7 %#lx, in_syscall=%d\n",
 	       oldset, regs, regs->sr[7], in_syscall);
@@ -543,7 +541,9 @@ do_signal(sigset_t *oldset, struct pt_re
 	   we would be called in that case, but for some reason we
 	   are. */
 
-	if (!oldset)
+	if (test_thread_flag(TIF_RESTORE_SIGMASK))
+		oldset = &current->saved_sigmask;
+	else
 		oldset = &current->blocked;
 
 	DBG(1,"do_signal: oldset %08lx / %08lx\n", 
@@ -592,7 +592,9 @@ do_signal(sigset_t *oldset, struct pt_re
 		if (handle_signal(signr, &info, &ka, oldset, regs, in_syscall)) {
 			DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n",
 				regs->gr[28]);
-			return 1;
+			if (test_thread_flag(TIF_RESTORE_SIGMASK))
+				clear_thread_flag(TIF_RESTORE_SIGMASK);
+			return;
 		}
 	}
 	/* end of while(1) looping forever if we can't force a signal */
@@ -653,5 +655,17 @@ #endif
 	DBG(1,"do_signal: Exit (not delivered), regs->gr[28] = %ld\n", 
 		regs->gr[28]);
 
-	return 0;
+	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+		clear_thread_flag(TIF_RESTORE_SIGMASK);
+		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+	}
+
+	return;
+}
+
+void do_notify_resume(struct pt_regs *regs, long in_syscall)
+{
+	if (test_thread_flag(TIF_SIGPENDING) ||
+	    test_thread_flag(TIF_RESTORE_SIGMASK))
+		do_signal(regs, in_syscall);
 }
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 701d66a..8ee1576 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -377,8 +377,8 @@ #endif
 	ENTRY_SAME(inotify_init)
 	ENTRY_SAME(inotify_add_watch)	/* 270 */
 	ENTRY_SAME(inotify_rm_watch)
-	ENTRY_SAME(ni_syscall)		/* 271 ENTRY_COMP(pselect6) */
-	ENTRY_SAME(ni_syscall)		/* 272 ENTRY_COMP(ppoll) */
+	ENTRY_COMP(pselect6)
+	ENTRY_COMP(ppoll)
 	ENTRY_SAME(migrate_pages)
 	ENTRY_COMP(openat)		/* 275 */
 	ENTRY_SAME(mkdirat)
diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h
index f2f83b0..949314c 100644
--- a/include/asm-parisc/thread_info.h
+++ b/include/asm-parisc/thread_info.h
@@ -62,6 +62,7 @@ #define TIF_NEED_RESCHED	3	/* rescheduli
 #define TIF_POLLING_NRFLAG	4	/* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_32BIT               5       /* 32 bit binary */
 #define TIF_MEMDIE		6
+#define TIF_RESTORE_SIGMASK	7	/* restore saved signal mask */
 
 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
@@ -69,9 +70,10 @@ #define _TIF_SIGPENDING		(1 << TIF_SIGPE
 #define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
 #define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
 #define _TIF_32BIT		(1 << TIF_32BIT)
+#define _TIF_RESTORE_SIGMASK	(1 << TIF_RESTORE_SIGMASK)
 
 #define _TIF_USER_WORK_MASK     (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING | \
-                                 _TIF_NEED_RESCHED)
+                                 _TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
 
 #endif /* __KERNEL__ */
 
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Xref: news.gmane.org gmane.linux.ports.parisc:23921

Kyle,

Could you explain what this change does in a paragraph or two? These
types of changes are not always self-explanatory.

> diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
> index 663631c..5405a99 100644
> --- a/arch/parisc/kernel/entry.S
> +++ b/arch/parisc/kernel/entry.S
> @@ -1089,14 +1089,13 @@ intr_do_signal:
>         CMPIB= 0,%r20,intr_restore /* backward */
>         nop
>
> -       copy    %r0, %r24                       /* unsigned long in_syscall */
> -       copy    %r16, %r25                      /* struct pt_regs *regs */
> +       copy    %r0, %r25                       /* unsigned long in_syscall */
>  #ifdef CONFIG_64BIT
>         ldo     -16(%r30),%r29                  /* Reference param save area */
>  #endif
>
> -       BL      do_signal,%r2
> -       copy    %r0, %r26                       /* sigset_t *oldset = NULL */
> +       BL      do_notify_resume,%r2
> +       copy    %r16, %r26                      /* struct pt_regs *regs */

OK, calling do_notify_resume changes the order of the input arguments.
Is this what other arches do on this path?

>         b       intr_check_sig
>         nop
> @@ -2267,16 +2266,14 @@ syscall_do_signal:
>            consistent with all the relevant state of the process
>            before the syscall.  We need to verify this. */
>         LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
> -       ldo     TASK_REGS(%r1), %r25            /* struct pt_regs *regs */
> -       reg_save %r25
> -
> -       ldi     1, %r24                         /* unsigned long in_syscall */
> +       ldo     TASK_REGS(%r1), %r26            /* struct pt_regs *regs */
> +       reg_save %r26
>
>  #ifdef CONFIG_64BIT
>         ldo     -16(%r30),%r29                  /* Reference param save area */
>  #endif
> -       BL      do_signal,%r2
> -       copy    %r0, %r26                       /* sigset_t *oldset = NULL */
> +       BL      do_notify_resume,%r2
> +       ldi     1, %r25                         /* long in_syscall */

OK, similar changes.

>         LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
>         ldo     TASK_REGS(%r1), %r20            /* reload pt_regs */
> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
> index 9a04272..e8de263 100644
> --- a/arch/parisc/kernel/signal.c
> +++ b/arch/parisc/kernel/signal.c
> @@ -58,8 +58,6 @@ #define _BLOCKABLE (~(sigmask(SIGKILL) |
>   * this. */
>  #define A(__x) ((unsigned long)(__x))
>
> -int do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall);
> -
>  /*
>   * Atomically swap in the new signal mask, and wait for a signal.
>   */
> @@ -93,21 +91,20 @@ #endif
>                         return -EFAULT;
>         }
>
> +       /* sigmask(SIGKILL) | sigmask(SIGSTOP) */
>         sigdelsetmask(&newset, ~_BLOCKABLE);

Could you expand this comment please.

>
>         spin_lock_irq(&current->sighand->siglock);
> -       saveset = current->blocked;
> +       current->saved_sigmask = current->blocked;

Ok.

>         current->blocked = newset;
>         recalc_sigpending();
>         spin_unlock_irq(&current->sighand->siglock);
>
> -       regs->gr[28] = -EINTR;
> -       while (1) {
> -               current->state = TASK_INTERRUPTIBLE;
> -               schedule();
> -               if (do_signal(&saveset, regs, 1))
> -                       return -EINTR;
> -       }
> +       current->state = TASK_INTERRUPTIBLE;
> +       schedule();
> +       set_thread_flag(TIF_RESTORE_SIGMASK);
> +
> +       return -ERESTARTNOHAND;

So instead of waiting for a signal we delay the do_signal call until later.
Could you help me verify why we returned -EINTR and set gr28 to -EINTR?
Is it ok to return -ERESTARTNOHAND now?

>  }
>
>  /*
> @@ -528,12 +525,13 @@ handle_signal(unsigned long sig, siginfo
>   * us due to the magic of delayed branching.
>   */
>
> -asmlinkage int
> -do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall)
> +asmlinkage void
> +do_signal(struct pt_regs *regs, long in_syscall)
>  {
>         siginfo_t info;
>         struct k_sigaction ka;
>         int signr;
> +       sigset_t *oldset;
>
>         DBG(1,"\ndo_signal: oldset=0x%p, regs=0x%p, sr7 %#lx, in_syscall=%d\n",
>                oldset, regs, regs->sr[7], in_syscall);
> @@ -543,7 +541,9 @@ do_signal(sigset_t *oldset, struct pt_re
>            we would be called in that case, but for some reason we
>            are. */
>
> -       if (!oldset)
> +       if (test_thread_flag(TIF_RESTORE_SIGMASK))
> +               oldset = &current->saved_sigmask;
> +       else
>                 oldset = &current->blocked;

Ok.

>         DBG(1,"do_signal: oldset %08lx / %08lx\n",
> @@ -592,7 +592,9 @@ do_signal(sigset_t *oldset, struct pt_re
>                 if (handle_signal(signr, &info, &ka, oldset, regs, in_syscall)) {
>                         DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n",
>                                 regs->gr[28]);
> -                       return 1;
> +                       if (test_thread_flag(TIF_RESTORE_SIGMASK))
> +                               clear_thread_flag(TIF_RESTORE_SIGMASK);
> +                       return;

OK, we assume the signal has been handled.

>                 }
>         }
>         /* end of while(1) looping forever if we can't force a signal */
> @@ -653,5 +655,17 @@ #endif
>         DBG(1,"do_signal: Exit (not delivered), regs->gr[28] = %ld\n",
>                 regs->gr[28]);
>
> -       return 0;
> +       if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
> +               clear_thread_flag(TIF_RESTORE_SIGMASK);
> +               sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
> +       }
> +
> +       return;
> +}

Is this behaviour correct? We have not delivered the signal, so we
restore the signal mask and clear the TIF_RESTORE_SIGMASK flag?

> +
> +void do_notify_resume(struct pt_regs *regs, long in_syscall)
> +{
> +       if (test_thread_flag(TIF_SIGPENDING) ||
> +           test_thread_flag(TIF_RESTORE_SIGMASK))
> +               do_signal(regs, in_syscall);
>  }

OK, I assume this is similar to all other arches.

> diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
> index 701d66a..8ee1576 100644
> --- a/arch/parisc/kernel/syscall_table.S
> +++ b/arch/parisc/kernel/syscall_table.S
> @@ -377,8 +377,8 @@ #endif
>         ENTRY_SAME(inotify_init)
>         ENTRY_SAME(inotify_add_watch)   /* 270 */
>         ENTRY_SAME(inotify_rm_watch)
> -       ENTRY_SAME(ni_syscall)          /* 271 ENTRY_COMP(pselect6) */
> -       ENTRY_SAME(ni_syscall)          /* 272 ENTRY_COMP(ppoll) */
> +       ENTRY_COMP(pselect6)
> +       ENTRY_COMP(ppoll)
>         ENTRY_SAME(migrate_pages)
>         ENTRY_COMP(openat)              /* 275 */
>         ENTRY_SAME(mkdirat)

Check these changes in, glibc enables these based on the unistd.h
definitions. Might aswell enable them even if they don't work yet.

> diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h
> index f2f83b0..949314c 100644
> --- a/include/asm-parisc/thread_info.h
> +++ b/include/asm-parisc/thread_info.h
> @@ -62,6 +62,7 @@ #define TIF_NEED_RESCHED      3       /* rescheduli
>  #define TIF_POLLING_NRFLAG     4       /* true if poll_idle() is polling TIF_NEED_RESCHED */
>  #define TIF_32BIT               5       /* 32 bit binary */
>  #define TIF_MEMDIE             6
> +#define TIF_RESTORE_SIGMASK    7       /* restore saved signal mask */
>
>  #define _TIF_SYSCALL_TRACE     (1 << TIF_SYSCALL_TRACE)
>  #define _TIF_NOTIFY_RESUME     (1 << TIF_NOTIFY_RESUME)
> @@ -69,9 +70,10 @@ #define _TIF_SIGPENDING              (1 << TIF_SIGPE
>  #define _TIF_NEED_RESCHED      (1 << TIF_NEED_RESCHED)
>  #define _TIF_POLLING_NRFLAG    (1 << TIF_POLLING_NRFLAG)
>  #define _TIF_32BIT             (1 << TIF_32BIT)
> +#define _TIF_RESTORE_SIGMASK   (1 << TIF_RESTORE_SIGMASK)
>
>  #define _TIF_USER_WORK_MASK     (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING | \
> -                                 _TIF_NEED_RESCHED)
> +                                 _TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
>
>  #endif /* __KERNEL__ */

These header changes are OK. Why don't you check these in first as a
Step 1 while we review the rest of the patch.

Cheers,
Carlos.
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Xref: news.gmane.org gmane.linux.ports.parisc:23922

On Mon, Aug 28, 2006 at 01:12:01PM -0400, Carlos O'Donell wrote:
> Could you explain what this change does in a paragraph or two? These
> types of changes are not always self-explanatory.
> 

Effectively these changes defer calling do_signal from rt_sigsuspend
by saving the saved signal mask in the task_struct.

> OK, calling do_notify_resume changes the order of the input arguments.
> Is this what other arches do on this path?
> 

No, we don't change the order, we just remove passing the oldset
from assembly since it is now saved in task_struct (oldset was NULL
on entry to do_signal unless it came from sigsuspend previously.)

> >        b       intr_check_sig
> >        nop
> >@@ -2267,16 +2266,14 @@ syscall_do_signal:
> >           consistent with all the relevant state of the process
> >           before the syscall.  We need to verify this. */
> >        LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
> >-       ldo     TASK_REGS(%r1), %r25            /* struct pt_regs *regs */
> >-       reg_save %r25
> >-
> >-       ldi     1, %r24                         /* unsigned long 
> >in_syscall */
> >+       ldo     TASK_REGS(%r1), %r26            /* struct pt_regs *regs */
> >+       reg_save %r26
> >
> > #ifdef CONFIG_64BIT
> >        ldo     -16(%r30),%r29                  /* Reference param save 
> >        area */
> > #endif
> >-       BL      do_signal,%r2
> >-       copy    %r0, %r26                       /* sigset_t *oldset = NULL 
> >*/
> >+       BL      do_notify_resume,%r2
> >+       ldi     1, %r25                         /* long in_syscall */
> 
> OK, similar changes.
> 

We have two paths to deliver signals, return from an interruption,
and return from a syscall. Both are subtlely different, but pretty
much logically the same where I'm changing them.

> >        LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
> >        ldo     TASK_REGS(%r1), %r20            /* reload pt_regs */
> >diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
> >index 9a04272..e8de263 100644
> >--- a/arch/parisc/kernel/signal.c
> >+++ b/arch/parisc/kernel/signal.c
> >@@ -58,8 +58,6 @@ #define _BLOCKABLE (~(sigmask(SIGKILL) |
> >  * this. */
> > #define A(__x) ((unsigned long)(__x))
> >
> >-int do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall);
> >-
> > /*
> >  * Atomically swap in the new signal mask, and wait for a signal.
> >  */
> >@@ -93,21 +91,20 @@ #endif
> >                        return -EFAULT;
> >        }
> >
> >+       /* sigmask(SIGKILL) | sigmask(SIGSTOP) */
> >        sigdelsetmask(&newset, ~_BLOCKABLE);
> 
> Could you expand this comment please.
> 

_BLOCKABLE is ~(sigmask(SIGKILL) | sigmask(SIGSTOP))
ergo, ~_BLOCKABLE is... you get the idea.

> >
> >        spin_lock_irq(&current->sighand->siglock);
> >-       saveset = current->blocked;
> >+       current->saved_sigmask = current->blocked;
> 
> Ok.
> 
> >        current->blocked = newset;
> >        recalc_sigpending();
> >        spin_unlock_irq(&current->sighand->siglock);
> >
> >-       regs->gr[28] = -EINTR;
> >-       while (1) {
> >-               current->state = TASK_INTERRUPTIBLE;
> >-               schedule();
> >-               if (do_signal(&saveset, regs, 1))
> >-                       return -EINTR;
> >-       }
> >+       current->state = TASK_INTERRUPTIBLE;
> >+       schedule();
> >+       set_thread_flag(TIF_RESTORE_SIGMASK);
> >+
> >+       return -ERESTARTNOHAND;
> 
> So instead of waiting for a signal we delay the do_signal call until later.
> Could you help me verify why we returned -EINTR and set gr28 to -EINTR?
> Is it ok to return -ERESTARTNOHAND now?
> 

This as other arches do. I have no idea, but if we're calling rt_sigsuspend
odds are we're going to do the do_signal on return from this same syscall...

> > }
> >
> > /*
> >@@ -528,12 +525,13 @@ handle_signal(unsigned long sig, siginfo
> >  * us due to the magic of delayed branching.
> >  */
> >
> >-asmlinkage int
> >-do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall)
> >+asmlinkage void
> >+do_signal(struct pt_regs *regs, long in_syscall)
> > {
> >        siginfo_t info;
> >        struct k_sigaction ka;
> >        int signr;
> >+       sigset_t *oldset;
> >
> >        DBG(1,"\ndo_signal: oldset=0x%p, regs=0x%p, sr7 %#lx, 
> >        in_syscall=%d\n",
> >               oldset, regs, regs->sr[7], in_syscall);
> >@@ -543,7 +541,9 @@ do_signal(sigset_t *oldset, struct pt_re
> >           we would be called in that case, but for some reason we
> >           are. */
> >
> >-       if (!oldset)
> >+       if (test_thread_flag(TIF_RESTORE_SIGMASK))
> >+               oldset = &current->saved_sigmask;
> >+       else
> >                oldset = &current->blocked;
> 
> Ok.
> 
> >        DBG(1,"do_signal: oldset %08lx / %08lx\n",
> >@@ -592,7 +592,9 @@ do_signal(sigset_t *oldset, struct pt_re
> >                if (handle_signal(signr, &info, &ka, oldset, regs, 
> >                in_syscall)) {
> >                        DBG(1,KERN_DEBUG "do_signal: Exit (success), 
> >                        regs->gr[28] = %ld\n",
> >                                regs->gr[28]);
> >-                       return 1;
> >+                       if (test_thread_flag(TIF_RESTORE_SIGMASK))
> >+                               clear_thread_flag(TIF_RESTORE_SIGMASK);
> >+                       return;
> 
> OK, we assume the signal has been handled.
> 
> >                }
> >        }
> >        /* end of while(1) looping forever if we can't force a signal */
> >@@ -653,5 +655,17 @@ #endif
> >        DBG(1,"do_signal: Exit (not delivered), regs->gr[28] = %ld\n",
> >                regs->gr[28]);
> >
> >-       return 0;
> >+       if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
> >+               clear_thread_flag(TIF_RESTORE_SIGMASK);
> >+               sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
> >+       }
> >+
> >+       return;
> >+}
> 
> Is this behaviour correct? We have not delivered the signal, so we
> restore the signal mask and clear the TIF_RESTORE_SIGMASK flag?
> 

        /* if there's no signal to deliver, we just put the saved sigmask
         * back
         */

is the comment from sparc64.

> These header changes are OK. Why don't you check these in first as a
> Step 1 while we review the rest of the patch.
> 

Not really much point...
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Xref: news.gmane.org gmane.linux.ports.parisc:23923

Round 2, Fight!

Fix a few bugs since the last patch... Properly check and loop
on the thread_info flags in intr_check_sig and syscall_check_sig.

Switch to using the generic {compat_,}sys_rt_sigsuspend.

Kill rt_sigsuspend_wrapper since we no longer need a pt_regs
argument.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

Boots, and seems to run fine. Needs more extensive testing though.

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 663631c..e52e0c7 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -978,11 +978,39 @@ intr_check_resched:
 	LDREG   TI_FLAGS(%r1),%r19	/* sched.h: TIF_NEED_RESCHED */
 	bb,<,n	%r19,31-TIF_NEED_RESCHED,intr_do_resched /* forward */
 
+	.import do_notify_resume,code
 intr_check_sig:
 	/* As above */
 	mfctl   %cr30,%r1
-	LDREG	TI_FLAGS(%r1),%r19	/* sched.h: TIF_SIGPENDING */
-	bb,<,n %r19, 31-TIF_SIGPENDING, intr_do_signal /* forward */
+	LDREG	TI_FLAGS(%r1),%r19
+	load32	(_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK), %r20
+	and,COND(<>)	%r19, %r20, %r0
+	b,n	intr_restore	/* skip past if we've nothing to do */
+
+	/* This check is critical to having LWS
+	 * working. The IASQ is zero on the gateway
+	 * page and we cannot deliver any signals until
+	 * we get off the gateway page.
+	 *
+	 * Only do signals if we are returning to user space
+	 */
+	LDREG	PT_IASQ0(%r16), %r20
+	CMPIB= 0,%r20,intr_restore /* backward */
+	nop
+	LDREG	PT_IASQ1(%r16), %r20
+	CMPIB= 0,%r20,intr_restore /* backward */
+	nop
+
+	copy	%r0, %r25			/* long in_syscall = 0 */
+#ifdef CONFIG_64BIT
+	ldo	-16(%r30),%r29			/* Reference param save area */
+#endif
+
+	BL	do_notify_resume,%r2
+	copy	%r16, %r26			/* struct pt_regs *regs */
+
+	b	intr_check_sig
+	nop
 
 intr_restore:
 	copy            %r16,%r29
@@ -1072,35 +1100,6 @@ intr_do_preempt:
 	b	intr_restore		/* ssm PSW_SM_I done by intr_restore */
 #endif /* CONFIG_PREEMPT */
 
-	.import do_signal,code
-intr_do_signal:
-	/* 
-		This check is critical to having LWS
-		working. The IASQ is zero on the gateway
-		page and we cannot deliver any signals until
-		we get off the gateway page.
-
-		Only do signals if we are returning to user space 
-	*/
-	LDREG	PT_IASQ0(%r16), %r20
-	CMPIB= 0,%r20,intr_restore /* backward */
-	nop
-	LDREG	PT_IASQ1(%r16), %r20
-	CMPIB= 0,%r20,intr_restore /* backward */
-	nop
-
-	copy	%r0, %r24			/* unsigned long in_syscall */
-	copy	%r16, %r25			/* struct pt_regs *regs */
-#ifdef CONFIG_64BIT
-	ldo	-16(%r30),%r29			/* Reference param save area */
-#endif
-
-	BL	do_signal,%r2
-	copy	%r0, %r26			/* sigset_t *oldset = NULL */
-
-	b	intr_check_sig
-	nop
-
 	/*
 	 * External interrupts.
 	 */
@@ -2028,32 +2027,6 @@ sys32_sigaltstack_wrapper:
 	nop
 #endif
 
-	.export sys_rt_sigsuspend_wrapper
-sys_rt_sigsuspend_wrapper:
-	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
-	ldo	TASK_REGS(%r1),%r24
-	reg_save %r24
-
-	STREG	%r2, -RP_OFFSET(%r30)
-#ifdef CONFIG_64BIT
-	ldo	FRAME_SIZE(%r30), %r30
-	b,l	sys_rt_sigsuspend,%r2
-	ldo	-16(%r30),%r29		/* Reference param save area */
-#else
-	bl	sys_rt_sigsuspend,%r2
-	ldo	FRAME_SIZE(%r30), %r30
-#endif
-
-	ldo	-FRAME_SIZE(%r30), %r30
-	LDREG	-RP_OFFSET(%r30), %r2
-
-	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
-	ldo	TASK_REGS(%r1),%r1
-	reg_restore %r1
-
-	bv	%r0(%r2)
-	nop
-
 	.export syscall_exit
 syscall_exit:
 
@@ -2119,9 +2092,35 @@ syscall_check_resched:
 	LDREG	TI_FLAGS-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r19	/* long */
 	bb,<,n	%r19, 31-TIF_NEED_RESCHED, syscall_do_resched /* forward */
 
+	.import do_signal,code
 syscall_check_sig:
-	LDREG	TI_FLAGS-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r19    /* get ti flags */
-	bb,<,n	%r19, 31-TIF_SIGPENDING, syscall_do_signal /* forward */
+	LDREG	TI_FLAGS-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r19
+	load32	(_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK), %r26
+	and,COND(<>)	%r19, %r26, %r0
+	b,n	syscall_restore	/* skip past if we've nothing to do */
+
+syscall_do_signal:
+	/* Save callee-save registers (for sigcontext).
+	 * FIXME: After this point the process structure should be
+	 * consistent with all the relevant state of the process
+	 * before the syscall.  We need to verify this.
+	 */
+	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1 
+	ldo	TASK_REGS(%r1), %r26		/* struct pt_regs *regs */
+	reg_save %r26
+
+#ifdef CONFIG_64BIT
+	ldo	-16(%r30),%r29			/* Reference param save area */
+#endif
+
+	BL	do_notify_resume,%r2
+	ldi	1, %r25				/* long in_syscall = 1 */
+
+	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
+	ldo	TASK_REGS(%r1), %r20		/* reload pt_regs */
+	reg_restore %r20
+
+	b,n     syscall_check_sig
 
 syscall_restore:
 	/* Are we being ptraced? */
@@ -2260,30 +2259,6 @@ #endif
 	b       syscall_check_bh  /* if resched, we start over again */
 	nop
 
-	.import do_signal,code
-syscall_do_signal:
-	/* Save callee-save registers (for sigcontext).
-	   FIXME: After this point the process structure should be
-	   consistent with all the relevant state of the process
-	   before the syscall.  We need to verify this. */
-	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1 
-	ldo	TASK_REGS(%r1), %r25		/* struct pt_regs *regs */
-	reg_save %r25
-
-	ldi	1, %r24				/* unsigned long in_syscall */
-
-#ifdef CONFIG_64BIT
-	ldo	-16(%r30),%r29			/* Reference param save area */
-#endif
-	BL	do_signal,%r2
-	copy	%r0, %r26			/* sigset_t *oldset = NULL */
-
-	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
-	ldo	TASK_REGS(%r1), %r20		/* reload pt_regs */
-	reg_restore %r20
-
-	b,n     syscall_check_sig
-
 	/*
 	 * get_register is used by the non access tlb miss handlers to
 	 * copy the value of the general register specified in r8 into
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 9a04272..2710f7a 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -58,8 +58,6 @@ #define _BLOCKABLE (~(sigmask(SIGKILL) |
  * this. */
 #define A(__x)	((unsigned long)(__x))
 
-int do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall);
-
 /*
  * Atomically swap in the new signal mask, and wait for a signal.
  */
@@ -67,49 +65,6 @@ #ifdef __LP64__
 #include "sys32.h"
 #endif
 
-asmlinkage int
-sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize, struct pt_regs *regs)
-{
-	sigset_t saveset, newset;
-#ifdef __LP64__
-	compat_sigset_t newset32;
-
-	if (is_compat_task()) {
-		/* XXX: Don't preclude handling different sized sigset_t's.  */
-		if (sigsetsize != sizeof(compat_sigset_t))
-			return -EINVAL;
-		if (copy_from_user(&newset32, (compat_sigset_t __user *)unewset, sizeof(newset32)))
-			return -EFAULT;
-		sigset_32to64(&newset,&newset32);
-		
-	} else 
-#endif
-	{
-		/* XXX: Don't preclude handling different sized sigset_t's.  */
-		if (sigsetsize != sizeof(sigset_t))
-			return -EINVAL;
-	
-		if (copy_from_user(&newset, unewset, sizeof(newset)))
-			return -EFAULT;
-	}
-
-	sigdelsetmask(&newset, ~_BLOCKABLE);
-
-	spin_lock_irq(&current->sighand->siglock);
-	saveset = current->blocked;
-	current->blocked = newset;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	regs->gr[28] = -EINTR;
-	while (1) {
-		current->state = TASK_INTERRUPTIBLE;
-		schedule();
-		if (do_signal(&saveset, regs, 1))
-			return -EINTR;
-	}
-}
-
 /*
  * Do a signal return - restore sigcontext.
  */
@@ -528,12 +483,13 @@ handle_signal(unsigned long sig, siginfo
  * us due to the magic of delayed branching.
  */
 
-asmlinkage int
-do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall)
+asmlinkage void
+do_signal(struct pt_regs *regs, long in_syscall)
 {
 	siginfo_t info;
 	struct k_sigaction ka;
 	int signr;
+	sigset_t *oldset;
 
 	DBG(1,"\ndo_signal: oldset=0x%p, regs=0x%p, sr7 %#lx, in_syscall=%d\n",
 	       oldset, regs, regs->sr[7], in_syscall);
@@ -543,7 +499,9 @@ do_signal(sigset_t *oldset, struct pt_re
 	   we would be called in that case, but for some reason we
 	   are. */
 
-	if (!oldset)
+	if (test_thread_flag(TIF_RESTORE_SIGMASK))
+		oldset = &current->saved_sigmask;
+	else
 		oldset = &current->blocked;
 
 	DBG(1,"do_signal: oldset %08lx / %08lx\n", 
@@ -592,7 +550,9 @@ do_signal(sigset_t *oldset, struct pt_re
 		if (handle_signal(signr, &info, &ka, oldset, regs, in_syscall)) {
 			DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n",
 				regs->gr[28]);
-			return 1;
+			if (test_thread_flag(TIF_RESTORE_SIGMASK))
+				clear_thread_flag(TIF_RESTORE_SIGMASK);
+			return;
 		}
 	}
 	/* end of while(1) looping forever if we can't force a signal */
@@ -653,5 +613,17 @@ #endif
 	DBG(1,"do_signal: Exit (not delivered), regs->gr[28] = %ld\n", 
 		regs->gr[28]);
 
-	return 0;
+	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+		clear_thread_flag(TIF_RESTORE_SIGMASK);
+		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+	}
+
+	return;
+}
+
+void do_notify_resume(struct pt_regs *regs, long in_syscall)
+{
+	if (test_thread_flag(TIF_SIGPENDING) ||
+	    test_thread_flag(TIF_RESTORE_SIGMASK))
+		do_signal(regs, in_syscall);
 }
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 701d66a..efa7e53 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -283,7 +283,7 @@ #endif
 	 * struct from a 32-bit user-space app.
 	 */
 	ENTRY_SAME(rt_sigqueueinfo)
-	ENTRY_SAME(rt_sigsuspend_wrapper) /* not really SAME -- see the code */
+	ENTRY_COMP(rt_sigsuspend)
 	ENTRY_SAME(chown)		/* 180 */
 	/* setsockopt() used by iptables: SO_SET_REPLACE/SO_SET_ADD_COUNTERS */
 	ENTRY_COMP(setsockopt)
diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h
index f2f83b0..949314c 100644
--- a/include/asm-parisc/thread_info.h
+++ b/include/asm-parisc/thread_info.h
@@ -62,6 +62,7 @@ #define TIF_NEED_RESCHED	3	/* rescheduli
 #define TIF_POLLING_NRFLAG	4	/* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_32BIT               5       /* 32 bit binary */
 #define TIF_MEMDIE		6
+#define TIF_RESTORE_SIGMASK	7	/* restore saved signal mask */
 
 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
@@ -69,9 +70,10 @@ #define _TIF_SIGPENDING		(1 << TIF_SIGPE
 #define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
 #define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
 #define _TIF_32BIT		(1 << TIF_32BIT)
+#define _TIF_RESTORE_SIGMASK	(1 << TIF_RESTORE_SIGMASK)
 
 #define _TIF_USER_WORK_MASK     (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING | \
-                                 _TIF_NEED_RESCHED)
+                                 _TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
 
 #endif /* __KERNEL__ */
 
diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
index 27bcfad..eb8a14f 100644
--- a/include/asm-parisc/unistd.h
+++ b/include/asm-parisc/unistd.h
@@ -951,6 +951,8 @@ #define __ARCH_WANT_SYS_OLDUMOUNT
 #define __ARCH_WANT_SYS_SIGPENDING
 #define __ARCH_WANT_SYS_SIGPROCMASK
 #define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
+#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
 
 /* mmap & mmap2 take 6 arguments */
 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
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Subject: [parisc-linux] Fix alpha, mips, parisc <asm/mman.h>
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Xref: news.gmane.org gmane.linux.ports.parisc:23924

Fix <asm/mman.h> on arches which do not include the asm-generic
mman.h header. Guard the define of arch_mmap_check() in an
#ifndef __ASSEMBLY__ in case mman.h ends up included in assembly
code as on ia64.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---
diff --git a/include/asm-alpha/mman.h b/include/asm-alpha/mman.h
index 5f24c75..97ebc74 100644
--- a/include/asm-alpha/mman.h
+++ b/include/asm-alpha/mman.h
@@ -52,4 +52,8 @@ #define MADV_DOFORK	11		/* do inherit ac
 #define MAP_ANON	MAP_ANONYMOUS
 #define MAP_FILE	0
 
+#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
+#define arch_mmap_check(addr, len, flags)	(0)
+#endif
+
 #endif /* __ALPHA_MMAN_H__ */
diff --git a/include/asm-mips/mman.h b/include/asm-mips/mman.h
index 046cf68..07b7cce 100644
--- a/include/asm-mips/mman.h
+++ b/include/asm-mips/mman.h
@@ -75,4 +75,8 @@ #define MADV_DOFORK	11		/* do inherit ac
 #define MAP_ANON	MAP_ANONYMOUS
 #define MAP_FILE	0
 
+#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
+#define arch_mmap_check(addr, len, flags)	(0)
+#endif
+
 #endif /* _ASM_MMAN_H */
diff --git a/include/asm-parisc/mman.h b/include/asm-parisc/mman.h
index 0ef15ee..d015a4e 100644
--- a/include/asm-parisc/mman.h
+++ b/include/asm-parisc/mman.h
@@ -59,4 +59,8 @@ #define MAP_ANON	MAP_ANONYMOUS
 #define MAP_FILE	0
 #define MAP_VARIABLE	0
 
+#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
+#define arch_mmap_check(addr, len, flags)	(0)
+#endif
+
 #endif /* __PARISC_MMAN_H__ */
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On Sun, Aug 27, 2006 at 11:05:34AM -0700, Jeff Bailey wrote:
> Hi!  As an attempt to help the glibc/NPTL efforts, I've upgraded to a
> recent kernel in order to make sure problems I'm seeing that are
> triggered by kernel bugs haven't already been fixed.  However, I can no
> longer make it through a glibc make check pass.

Because reduced test cases are cuddly, I have produced one (attached).
=)

I found I could produce the same failure with the ltp testsuite, so I
reduced that instead.

And the failure message again:
root@test148:~/foo# ./adjtimex02
kernel BUG at mm/mmap.c:1970!
Backtrace:
 [<10160978>] exit_mmap+0x16c/0x18c
 [<10124160>] mmput+0x4c/0xc0
 [<101290c0>] do_exit+0x130/0x840
 [<10129860>] do_group_exit+0x6c/0xcc
 [<1010c134>] syscall_exit+0x0/0x14
Kernel panic - not syncing: BUG!
 <3>BUG: scheduling while atomic: adjtimex02/0x00000100/2627
Backtrace:
 [<1010262c>] schedule+0x6d0/0x6f4
 [<10139c54>] flush_cpu_workqueue+0xb8/0x110
 [<1013a164>] cancel_rearming_delayed_workqueue+0x58/0x5c
 [<10238ce4>] lcd_print+0x54/0x1b0
 [<1023a270>] process_shutdown+0x3c/0x6c
 [<1012cf78>] tasklet_action+0x64/0xec
 [<1012cb68>] __do_softirq+0xd8/0x114
 [<10104918>] __lock_text_end+0x48/0x54
 [<1010b068>] intr_return+0x0/0xc

I have updated the system map at
http://people.ubuntu.com/~jbailey/System.map-2.6.18-rc4-pa4
with the one for the kernel recompiled with gcc-3.4.6.

Tks,
Jeff Bailey

-- 
I do not agree with a word you say, but I will defend to the death your
right to say it. 
 - Voltaire

--/9DWx/yDrRhgMJTb
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/*
 * Testcase reduced from ltp, adjtimex02
 *
 * 1) adjtimex(2) fails with errno set to EFAULT if buf does
 *	   not point to writable memory
 */

#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/timex.h>

int
main()
{
	struct timex *buffp = (struct timex *) -1;

	/* Check whether we are root */
	if (geteuid() != 0) {
		fprintf(stderr, "This needs to run as root.\n");
		return(-1);
	}
	
	/* Call adjtimex(2) */
	adjtimex(buffp);

	return 0;
}



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A review of 'arch/parisc/kernel/time.c' and in particular
'timer_interrupt' and 'gettimeoffset'  show that this code has a
couple of design flaws.

1. cr16 is treated as signed.
2. No attempt is made to handle cr16 wrapping.
3. jiffies vs. wall_jiffies adjustment is incorrect.

I have rewritten 'timer_interrupt'.

A. cr16 is treated as an unsigned long.
B. The following 3 scenarios exist.

1. The timer interrupt fires, and 'now' comes after 'next_tick'
2. The timer interrupt fires, and 'now' has wrapped and is before 'next_tick'
3. The timer interrupt fires, and 'now' is *just* before 'next_tick'

In theory 99% of the time we should be in scenario 1. On occasion we
may miss a timer interrupt, end up close to wrapping, and we get
scenario 2. Scenario 3 is just plain wrong and for now I will BUG() if
the timer fires before we intended.

I have adjusted 'gettimeoffset' in the following fashion:

A. cr16 is treated as an unsigned long.
B. Never ever ever return a negative adjustment.
C. (jiffies - wall_jiffies) adjustment is always positive and added to usec.
D. The 3 timer scenarios (same as above), exist.

I assert that 'gettimeoffset' should never return a negative value. It
represents the postive adjustment accounting for the fact that we are
*part* of the way through a tick.

The patch is attached. Please review. I booted this on my a500 without
any problems. I don't really know how to look for problems so I ran
the glibc testsuite and didn't get any extra regressions.

The real test will be to run this on a 715/50 and look for Guy's
reported problems. Guy, would you mind patching your kernel with this
patch and testing again?

Cheers,
Carlos.

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On 8/30/06, Guy Martin <gmsoft@tuxicoman.be> wrote:
> Thanks for identifying the possible issue. However I'm not sure how that could be fixed.
> What happend when we read from cr16 and then write in a long does 0xffffffff get stored because it overflow ?

In practice we need only guarantee that gettimeoffset() return
positive values to ensure the forward progression of time.

> What would be the best fix for this then ? Process the value returned by cr16 and add one sec for the higher 4bytes and the proceed as usual with the lower bytes ?

The best fix is to identify the wrapping situation. There are 2 or 3
robust ways to do this.

> How does this counter works ? Does it increase or decrease ? How fast is it doing so ?

You need to read the PA 1.1 or PA 2.0 architecture documens which
describe the behaviour of the interval timer and the interrupt
generation. The counter is actually 2 registers, a free-running
counter usually counting at the same speed as the CPU clock, and the
"trigger time" which is always a 32-bit trigger value. When the lower
32-bits of the free-running counter equals the 32-bit trigger, then a
timer interrupt is generated.

Cheers,
Calros.
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From: "Joel Soete" <soete.joel@scarlet.be>
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Subject: Re:[parisc-linux] [PATCH] timer_interrupt and gettimeoffset.
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Xref: news.gmane.org gmane.linux.ports.parisc:23928

> A review of 'arch/parisc/kernel/time.c' and in particular
> 'timer_interrupt' and 'gettimeoffset'  show that this code has a
> couple of design flaws.
> 
> 1. cr16 is treated as signed.
> 2. No attempt is made to handle cr16 wrapping.
> 3. jiffies vs. wall_jiffies adjustment is incorrect.
> 
> I have rewritten 'timer_interrupt'.
> 
> A. cr16 is treated as an unsigned long.
> B. The following 3 scenarios exist.
> 
> 1. The timer interrupt fires, and 'now' comes after 'next_tick'
mmm (just a thought) what's up if now comes after next_tick but cr16 has
already wrap 1, 2, ... times?

> 2. The timer interrupt fires, and 'now' has wrapped and is before 'next=
_tick'
> 3. The timer interrupt fires, and 'now' is *just* before 'next_tick'
> 
> In theory 99% of the time we should be in scenario 1. On occasion we
> may miss a timer interrupt, end up close to wrapping, and we get
> scenario 2. Scenario 3 is just plain wrong and for now I will BUG() if
> the timer fires before we intended.
> 
> I have adjusted 'gettimeoffset' in the following fashion:
> 
> A. cr16 is treated as an unsigned long.
> B. Never ever ever return a negative adjustment.
> C. (jiffies - wall_jiffies) adjustment is always positive and added to =
usec.
> D. The 3 timer scenarios (same as above), exist.
> 
> I assert that 'gettimeoffset' should never return a negative value. It
> represents the postive adjustment accounting for the fact that we are
> *part* of the way through a tick.
> 
> The patch is attached. Please review. I booted this on my a500 without
> any problems. I don't really know how to look for problems so I ran
> the glibc testsuite and didn't get any extra regressions.
> 
> The real test will be to run this on a 715/50 and look for Guy's
> reported problems. Guy, would you mind patching your kernel with this
> patch and testing again?
> 
Make sense to me but patch doesn't works for me on b2k 32bit kernel ;-(
it was hanging (no error msg on lcd display) just after "Memory: 262144k
available" then I have to force reboot power off/on cycle.

Thanks,
    Joel

 
> Cheers,
> Carlos.
> 
> =0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devenez =
aujourd'hui Scarlet One grace a un client existant de Scarlet, vous recev=
ez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur http=
://www.clubscarlet.be

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On Wed, Aug 30, 2006 at 06:38:19PM +0200, Joel Soete wrote:
> > 1. The timer interrupt fires, and 'now' comes after 'next_tick'
> mmm (just a thought) what's up if now comes after next_tick but cr16 has
> already wrap 1, 2, ... times?

Every ~4 seconds a 32-bit cycle counter running 1Ghz will wrap.
If it wraps twice between any two interrupts, I think we are already screwed.
There is no way to detect that with a 32-bit kernel.  My hope is the same
bug is visible on 64-bit kernel where we have 30 billion or so seconds
before the counter will wrap.

> > reported problems. Guy, would you mind patching your kernel with this
> > patch and testing again?
>
> Make sense to me but patch doesn't works for me on b2k 32bit kernel ;-(
> it was hanging (no error msg on lcd display) just after "Memory: 262144k
> available" then I have to force reboot power off/on cycle.

I'll give it a go as well.

grant
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Hello,

my HIL mouse refuses to work if the hil_ptr driver is compiled statically into 
the kernel. It does however work if the driver is compiled as a module.

The kernel is built from this archive:
http://cvs.parisc-linux.org/download/linux-2.6/linux-2.6.17-pa6.tar.bz2
using the configuration from the attachment config_mouse_built_in.gz. dmesg 
reports what is stored in dmesg_mouse_built_in.gz, and the mouse does not 
work.
If I compile the kernel with the mouse driver as a module, like in 
config_mouse_module.gz, and let my initscripts load that module, then dmesg 
says dmesg_mouse_module.gz and the mous works without any problem.

The machine in question is a 735/125 running Gentoo Linux and uses gcc 4.1.1, 
binutils 2.16.1-r3.

If I have missed any essential information, please ask about it.

Richard

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Subject: Re: [parisc-linux] some more questions about __raw_write_trylock()
	hppa implementation
Date: Wed, 30 Aug 2006 21:59:32 -0600
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To: Joel Soete <soete.joel@scarlet.be>
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On Wed, Aug 30, 2006 at 08:23:39PM +0000, Joel Soete wrote:
> Hello all,
> 
> I noticed that:
> static  __inline__ int __raw_write_trylock(raw_rwlock_t *rw)
> {
>         __raw_spin_lock(&rw->lock);
>         if (rw->counter != 0) {
>                 /* this basically never happens */
>                 __raw_spin_unlock(&rw->lock);
> 
>                 return 0;
>         }
> 
>         /* got it.  now leave without unlocking */
>         rw->counter = -1; /* remember we are locked */
>         return 1;
> }
> 
> 
> so depending the counter is null or not the lock is kept or relaxed?
> 
> following my smp pb invextigation the pb I encounter seems to occure rarely 
> and so according to above comment "/* this basically never happens */" I 
> place here a panic() in the hope to get a better trace if it start to hang 
> by this place. Unfortunately the comment is wrong and system panicing at 
> boot time ;-(

The comment isn't wrong.  It just means that the contention only happens
when there's actual write-lock contention.

> Looking to some other implementation (powerpc and sh in particular), I 
> don't have the feeling that this fnct should have to keep the lock in any 
> case. Any idea?

That's how it works.  Write locks keep the spinlock locked, read locks
release it.  Actually, there is a problem with the write locks that I
noticed during replying to this mail the first time.  Then palinux
crashed.  How ironic.  Grant and I are fixing that right now ...
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] some more questions about __raw_write_trylock()
	hppa implementation
Date: Thu, 31 Aug 2006 00:06:37 -0600
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On Wed, Aug 30, 2006 at 09:59:32PM -0600, Matthew Wilcox wrote:
> Actually, there is a problem with the write locks that I
> noticed during replying to this mail the first time.
> Then palinux crashed.  How ironic.
> Grant and I are fixing that right now ...

Willy,
Here's the patch I ended up with.
Diff is also parked on gsyprf11:~grundler/diff-2.6.18-rc4-pa4-rwlocks-01

This is currently running on iodine (a500-5x).
I don't know how this needs to be tested other than running
"make -j4" on the kernel build. Maybe glibc/toolchain build?

Please feel free to apply with your own commit comment, additional
changes, and S-o-B line.

And kudos for catching this. It's another non-trivial problem that's
been around for a while.

thanks,
grant

Commit Comment:
	We can't use generic__raw_read_trylock() since that will hang instead
	of returning a failure if the rwlock->lock isn't available.
	Similarly, __raw_write_trylock() is broken in that it would
	hang too instead of returning a failure.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>


diff --git a/include/asm-parisc/spinlock.h b/include/asm-parisc/spinlock.h
index a93960e..d4048a6 100644
--- a/include/asm-parisc/spinlock.h
+++ b/include/asm-parisc/spinlock.h
@@ -60,7 +60,6 @@ static inline int __raw_spin_trylock(raw
  * but only one writer.
  */
 
-#define __raw_read_trylock(lock) generic__raw_read_trylock(lock)
 
 /* read_lock, read_unlock are pretty straightforward.  Of course it somehow
  * sucks we end up saving/restoring flags twice for read_lock_irqsave aso. */
@@ -68,19 +67,25 @@ #define __raw_read_trylock(lock) generic
 static  __inline__ void __raw_read_lock(raw_rwlock_t *rw)
 {
 	__raw_spin_lock(&rw->lock);
-
 	rw->counter++;
-
 	__raw_spin_unlock(&rw->lock);
 }
 
 static  __inline__ void __raw_read_unlock(raw_rwlock_t *rw)
 {
 	__raw_spin_lock(&rw->lock);
-
 	rw->counter--;
+	__raw_spin_unlock(&rw->lock);
+}
+
+static  __inline__ int __raw_read_trylock(raw_rwlock_t *rw)
+{
+	if (!__raw_spin_trylock(&rw->lock))
+		return 0;
 
+	rw->counter++;
 	__raw_spin_unlock(&rw->lock);
+	return 1;
 }
 
 /* write_lock is less trivial.  We optimistically grab the lock and check
@@ -121,15 +126,15 @@ static  __inline__ void __raw_write_unlo
 
 static  __inline__ int __raw_write_trylock(raw_rwlock_t *rw)
 {
-	__raw_spin_lock(&rw->lock);
+	if (!__raw_spin_trylock(&rw->lock))
+		return 0;
+
 	if (rw->counter != 0) {
-		/* this basically never happens */
 		__raw_spin_unlock(&rw->lock);

From - Thu Nov 08 21:35:04 2018
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On 8/30/06, Grant Grundler <grundler@parisc-linux.org> wrote:
> On Wed, Aug 30, 2006 at 06:38:19PM +0200, Joel Soete wrote:
> > > 1. The timer interrupt fires, and 'now' comes after 'next_tick'
> > mmm (just a thought) what's up if now comes after next_tick but cr16 has
> > already wrap 1, 2, ... times?
>
> Every ~4 seconds a 32-bit cycle counter running 1Ghz will wrap.
> If it wraps twice between any two interrupts, I think we are already screwed.
> There is no way to detect that with a 32-bit kernel.  My hope is the same
> bug is visible on 64-bit kernel where we have 30 billion or so seconds
> before the counter will wrap.
>
> > > reported problems. Guy, would you mind patching your kernel with this
> > > patch and testing again?
> >
> > Make sense to me but patch doesn't works for me on b2k 32bit kernel ;-(
> > it was hanging (no error msg on lcd display) just after "Memory: 262144k
> > available" then I have to force reboot power off/on cycle.
>
> I'll give it a go as well.

It actaully turns out I don't think I ever booted this patch, my
palo.conf was hosed and I was writing the wrong kernel. It was too
good to be true :)

I'll have a go at testing this again tonight.

Cheers,
Carlos.
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Subject: [parisc-linux] some more questions about __raw_write_trylock() hppa
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Hello all,

I noticed that:
static  __inline__ int __raw_write_trylock(raw_rwlock_t *rw)
{
         __raw_spin_lock(&rw->lock);
         if (rw->counter != 0) {
                 /* this basically never happens */
                 __raw_spin_unlock(&rw->lock);

                 return 0;
         }

         /* got it.  now leave without unlocking */
         rw->counter = -1; /* remember we are locked */
         return 1;
}


so depending the counter is null or not the lock is kept or relaxed?

following my smp pb invextigation the pb I encounter seems to occure rarely and so according to above comment "/* this basically 
never happens */" I place here a panic() in the hope to get a better trace if it start to hang by this place. Unfortunately the 
comment is wrong and system panicing at boot time ;-(

Looking to some other implementation (powerpc and sh in particular), I don't have the feeling that this fnct should have to keep the 
lock in any case. Any idea?

Thanks,
	Joel

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On Sun, Aug 27, 2006 at 10:26:53PM +0200, Guy Martin wrote:
> I wasn't able to reproduce at all on my C3600.
> 

Is your C3600 running a 64bit kernel?

CR16 is 4294967296 times bigger on a 64bit kernel, whereas
the clockspeed of your C3600 is only about 4x faster...
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On Sun, Aug 27, 2006 at 07:30:45PM -0400, Kyle McMartin wrote:
> On Sun, Aug 27, 2006 at 05:21:43PM -0400, John David Anglin wrote:
> > This happened between 2.6.17-rc3-pa3 and 2.6.17-rc4-pa0.  Removing
> > the unsupported A1262A allowed 2.6.17-pa6 to boot.  It doesn't boot
> > with the card installed.  This is using the c3000_defconfig kernels.
> > 
> 
> Can you remove the PCI_DEVICE(...) lines with PCI_DEVICE_HP_VISUALIZEFX*
> in drivers/video/console/sticore.c and see what happens? That should
> at least allow them to boot.
> 

I've finally got a chance to install my A1262A and VisEG PCI in my J6700,
I'll try to spend some time debugging this as soon as possible (though,
it might not been until mid-next week).

Cheers,
	Kyle M.
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Xref: news.gmane.org gmane.linux.ports.parisc:23937

On Wed, Aug 30, 2006 at 12:48:43AM -0400, Carlos O'Donell wrote:
> A review of 'arch/parisc/kernel/time.c' and in particular
> 'timer_interrupt' and 'gettimeoffset'  show that this code has a
> couple of design flaws.
> 
> 1. cr16 is treated as signed.

This was by design. Paul Bame (IIRC) wrote this code and
while I was never that comfortable with it, I could never 
find anything wrong with it either. Randolph Chung and I
stared at timer_interrupt() _alot_.

> 2. No attempt is made to handle cr16 wrapping.

The signed math was supposed to handle it.
I believe it did but forgot details since looking at
it a few years ago.

I personally prefer to NOT use signed math in this case.
But that's honestly not a great reason to change this code.
I'd really prefer some evidence the kernel code is wrong.

> 3. jiffies vs. wall_jiffies adjustment is incorrect.
> 
> I have rewritten 'timer_interrupt'.

And I've hacked your version some more.
diff is below.

I've included your changes to gettimeoffset() in my patch below
and will review those next.

And something is certainly wrong with my version of the code.
It seems to be running the system clock at ~ 1/2 speed now. :)

odine:~# while : ; do sleep 10 ; ntpdate pool.ntp.org ; done
30 Aug 23:51:13 ntpdate[14051]: step time server 203.217.30.156 offset 60.165510 sec
30 Aug 23:51:39 ntpdate[14053]: step time server 203.217.30.156 offset 13.065388 sec
30 Aug 23:52:04 ntpdate[14055]: step time server 195.234.188.26 offset 11.578574 sec
30 Aug 23:52:31 ntpdate[14058]: step time server 203.217.30.156 offset 13.954358 sec
...

> A. cr16 is treated as an unsigned long.
> B. The following 3 scenarios exist.
> 
> 1. The timer interrupt fires, and 'now' comes after 'next_tick'

This is the "normal" case I think. 'now' should always lag behind
'next_tick' and how much depends on how long interrupts are blocked
on that CPU.

> 2. The timer interrupt fires, and 'now' has wrapped and is before 
> 'next_tick'
> 3. The timer interrupt fires, and 'now' is *just* before 'next_tick'
> 
> In theory 99% of the time we should be in scenario 1. On occasion we
> may miss a timer interrupt, end up close to wrapping, and we get
> scenario 2.

I'll assert we don't need to miss a timer interrupt to hit Scenario 2.
All we need is a timer interrupt that scheduled near 4GB (but below)
and 'normal' lag in interrupt delivery/handling will allow the
CR16 to wrap.

> Scenario 3 is just plain wrong and for now I will BUG() if
> the timer fires before we intended.

I agree.

...
> I assert that 'gettimeoffset' should never return a negative value. It
> represents the postive adjustment accounting for the fact that we are
> *part* of the way through a tick.

I have to think about this more. But I wonder if how "halftick" is
handled in timer_interrupt does not play well with this concept.

> The patch is attached. Please review. I booted this on my a500 without
> any problems. I don't really know how to look for problems so I ran
> the glibc testsuite and didn't get any extra regressions.

I've only booted on a500 (64-bit kernel) and will try on b2600
(32-bit kernel) next.


Please review and see if I added any new bugs.

Note that I replaced the "~0UL - XXX" with "~ XXX".
I'll be off by one cycle. I don't care.

thanks,
grant


diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 5facc9b..9f6cf58 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -44,34 +44,58 @@ #endif
 
 irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
-	long now;
-	long next_tick;
-	int nticks;
+	unsigned long now;
+	unsigned long next_tick;
+        unsigned long remainder;
+	unsigned long ticks_elapsed = 0;
 	int cpu = smp_processor_id();
 
 	profile_tick(CPU_PROFILING, regs);
 
-	now = mfctl(16);
-	/* initialize next_tick to time at last clocktick */
+	/* Initialize next_tick to the expected tick time. */
 	next_tick = cpu_data[cpu].it_value;
 
-	/* since time passes between the interrupt and the mfctl()
-	 * above, it is never true that last_tick + clocktick == now.  If we
-	 * never miss a clocktick, we could set next_tick = last_tick + clocktick
-	 * but maybe we'll miss ticks, hence the loop.
-	 *
-	 * Variables are *signed*.
+	/* Get current interval timer.
+	 * CR16 reads as 64 or 32 bit value depending CPU wide/narrow mode.
 	 */
+	now = mfctl(16);
+
+	/* Determine how much time elapsed.  */
+	if (now > next_tick) {
+		/* Scenario 1: "now" is late. A bit late is normal. */
+		ticks_elapsed = (now - next_tick) / clocktick;
+		remainder = now - (ticks_elapsed * clocktick);
+	}
+        else {
+		/* "now" is either early or cr16 wrapped.  */
+		if (~next_tick < clocktick) {
+			unsigned long difference;
+
+			/* Scenario 2: A missed clock tick would wrap. */
+			difference = ~0UL - (next_tick - now);
+			ticks_elapsed = difference / clocktick;
+			remainder = difference % clocktick;
+		} else {
+			/* Scenario 3: We didn't miss a clock tick. 
+			   "now" is early?  */
+			printk ("timer_interrupt: Now is early, now = %lx, next_tick = %lx, clocktick = %lx\n", now, next_tick, clocktick);
+			BUG ();
+		}
+	}
 
-	nticks = 0;
-	while((next_tick - now) < halftick) {
-		next_tick += clocktick;
-		nticks++;
+	if (remainder > halftick) {
+		/* More than 1/2 way into the next tick. It counts.  */
+		ticks_elapsed++;
 	}
+
+	/* Add any full ticks that have elapsed plus the one we want next. */
+	next_tick += (ticks_elapsed + 1) * clocktick;
+
+        /* Only bottom 32-bits of next_tick are written to cr16.  */
 	mtctl(next_tick, 16);
 	cpu_data[cpu].it_value = next_tick;
 
-	while (nticks--) {
+	while (ticks_elapsed--) {
 #ifdef CONFIG_SMP
 		smp_do_timer(regs);
 #else
@@ -124,21 +148,47 @@ #ifndef CONFIG_SMP
 	 *    Once parisc-linux learns the cr16 difference between processors,
 	 *    this could be made to work.
 	 */
-	long last_tick;
-	long elapsed_cycles;
+	unsigned long now;
+	unsigned long last_tick;
+	unsigned long next_tick;
+	unsigned long next_next_tick;
+	unsigned long elapsed_cycles;
+	unsigned long usec;
+	unsigned long lost;
 
 	/* it_value is the intended time of the next tick */
-	last_tick = cpu_data[smp_processor_id()].it_value;
+	next_tick = cpu_data[smp_processor_id()].it_value;
+	next_next_tick = next_tick + clocktick;
 
-	/* Subtract one tick and account for possible difference between
-	 * when we expected the tick and when it actually arrived.
-	 * (aka wall vs real)
-	 */
-	last_tick -= clocktick * (jiffies - wall_jiffies + 1);
-	elapsed_cycles = mfctl(16) - last_tick;
+	/* This represents lost jiffies.  */
+	lost = clocktick * (jiffies - wall_jiffies); 
+	
+	/* We roll back 1 tick.  */
+	last_tick = next_tick - clocktick;
+
+	/* Read the hardware interval timer.  */
+	now = mfctl(16);
+
+	if (now > last_tick) {
+		/* Scenario 1: "now" is later than last_tick.  */
+		elapsed_cycles = now - last_tick;
+	} else {
+		/* "now" is either early or cr16 wrapped.  */
+		if (next_next_tick < last_tick) {
+			/* Scenario 2: A missed clock tick would wrap. */
+			elapsed_cycles = ~0UL - (last_tick - now);
+		} else {
+			/* Scenario 3: We didn't miss a clock tick. 
+			   "now" is early?  */
+			printk ("gettimeoffset: Now is early, now = %lx, last_tick = %lx, next_tick = %lx, clocktick = %lx\n", now, last_tick, next_tick, clocktick);
+			BUG ();
+		}
+	}
 
-	/* the precision of this math could be improved */
-	return elapsed_cycles / (PAGE0->mem_10msec / 10000);
+	/* FIXME: Improve precision. */
+	usec = elapsed_cycles * 10000 / PAGE0->mem_10msec;
+	usec += lost;
+	return usec;
 #else
 	return 0;
 #endif
@@ -149,6 +199,7 @@ do_gettimeofday (struct timeval *tv)
 {
 	unsigned long flags, seq, usec, sec;
 
+	/* Hold xtime_lock and adjust timeval.  */
 	do {
 		seq = read_seqbegin_irqsave(&xtime_lock, flags);
 		usec = gettimeoffset();
@@ -156,25 +207,13 @@ do_gettimeofday (struct timeval *tv)
 		usec += (xtime.tv_nsec / 1000);
 	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
 
-	if (unlikely(usec > LONG_MAX)) {
-		/* This can happen if the gettimeoffset adjustment is
-		 * negative and xtime.tv_nsec is smaller than the
-		 * adjustment */
-		printk(KERN_ERR "do_gettimeofday() spurious xtime.tv_nsec of %ld\n", usec);
-		usec += USEC_PER_SEC;
-		--sec;
-		/* This should never happen, it means the negative
-		 * time adjustment was more than a second, so there's
-		 * something seriously wrong */
-		BUG_ON(usec > LONG_MAX);
-	}
-

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Xref: news.gmane.org gmane.linux.ports.parisc:23938

On Thu, Aug 31, 2006 at 12:06:37AM -0600, Grant Grundler wrote:
> Here's the patch I ended up with.
> Diff is also parked on gsyprf11:~grundler/diff-2.6.18-rc4-pa4-rwlocks-01
> 
> +static  __inline__ int __raw_read_trylock(raw_rwlock_t *rw)
> +{
> +	if (!__raw_spin_trylock(&rw->lock))
> +		return 0;
>  
> +	rw->counter++;
>  	__raw_spin_unlock(&rw->lock);
> +	return 1;
>  }

This has the false failure problem.  ie if another CPU is doing a
read_lock() at the same time, it will fail to acquire the lock, even
though it would succeed if it tried again.  I don't know if we have any
code which depends upon that not failing, but it does seem a bit
suboptimal.

Fixing this is somewhat Hard.  My original suggestion was this:

retry:
	if (__raw_spin_trylock(&rw->lock)) {
		rw->counter++;
		__raw_spin_unlock(&rw->lock);
		return 1;
	} else if (rw->counter < 0) {
		return 0;
	} else {
		goto retry;
	}

But this leads to deadlock if called from interrupt context and the CPU
had got to:

static  __inline__ void __raw_write_lock(raw_rwlock_t *rw)
{
retry:
        __raw_spin_lock(&rw->lock);

<<<- here

and hadn't set counter to -1.  Now, we can fix that:

static  __inline__ void __raw_write_lock(raw_rwlock_t *rw)
{
	unsigned long flags;
retry:
	local_irq_save(flags);
        __raw_spin_lock(&rw->lock);

        if (rw->counter != 0) {
                /* this basically never happens */
                __raw_spin_unlock(&rw->lock);
		local_irq_restore(flags);

                while (rw->counter != 0)
                        cpu_relax();

                goto retry;
        }

        /* got it.  now leave without unlocking */
        rw->counter = -1; /* remember we are locked */
	local_irq_restore(flags);
}

A similar change has to be made to __raw_write_trylock too:

static  __inline__ int __raw_write_trylock(raw_rwlock_t *rw)
{
	unsigned long flags;
	int result = 0;
	local_irq_save(flags);
	if (__raw_spin_trylock(&rw->lock)) {
		if (rw->counter == 0) {
			rw->counter = -1;
			result = 1;
		} else {
			__raw_spin_unlock(&rw->lock);
		}
	}
	local_irq_restore(flags);
	return result;
}

Better ideas, anyone?

(And perhaps more importantly, anyone spot any holes in my reasoning?
I'm not too happy disabling interrupts *after* disabling preemption.
And of course, we disable interrupts twice when called with
write_lock_irq.)
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On Thu August 31 2006 07:31, Matthew Wilcox wrote:
> 
> Better ideas, anyone?
> 

better? not sure, but one thing I am looking at using is
tri-state locks, defined as:

0 == Busy, change in process
&lock == Locked
other == Unlocked

Since that can be done with load&clear and the information
already on hand in the registers.

That is also compatible with the single-linked, bi-directional
lists of requesters - I.E: the values and the lock are also
the head (or tail) of the list. (race free)

No actual code to offer at this time.

Not my idea, took it from one of the references mentioned
in my pa-risc synchronization constructs write-up.

Hmmm...
That might be usable (the tri-state logic) in dealing with
a wrapping timer cr16 also.

Mike
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Subject: Re: [parisc-linux] some more questions about __raw_write_trylock()
	hppa implementation
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On Thu, Aug 31, 2006 at 08:01:30AM -0500, Michael S. Zick wrote:
> better? not sure, but one thing I am looking at using is
> tri-state locks, defined as:
> 
> 0 == Busy, change in process
> &lock == Locked
> other == Unlocked
> 
> Since that can be done with load&clear and the information
> already on hand in the registers.

Yep, although I don't think that actually saves us from the
reader-interrupted-write-lock problem.  The first thing the writer does
is ldcw, then if it's interrupted, the reader-in-interrupt-context can't
tell if it's a heavily contended read-lock (which would eventually
work), or if it's interrupted a write lock attempt.

One thing we could do is limit the number of times we retry.

Hmm, I just thought.  If we interrupted a writer trying to acquire the
lock, the writer was about to successfully acquire the lock.  But we
interrupted them, so they can't be running.  And nobody else can acquire
the lock because the attempting writer holds the spinlock.  So the
reader in interrupt context can be deemed to have successfully acquired
the lock.  Now ... how do we handle releasing that lock, given that it
can't acquire the spinlock ...
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Subject: Re: [parisc-linux] some more questions about __raw_write_trylock()
	hppa implementation
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On Thu, Aug 31, 2006 at 07:13:40AM -0600, Matthew Wilcox wrote:
> One thing we could do is limit the number of times we retry.

Yes, we have to or we face a variant of deadlock.

> Hmm, I just thought.  If we interrupted a writer trying to acquire the
> lock, the writer was about to successfully acquire the lock.  But we
> interrupted them, so they can't be running.  And nobody else can acquire
> the lock because the attempting writer holds the spinlock.  So the
> reader in interrupt context can be deemed to have successfully acquired
> the lock.  Now ... how do we handle releasing that lock, given that it
> can't acquire the spinlock ...

nononono...please don't go there. It's complicated enough already.
Adding more code just makes it slower and harder to maintain.
I'd much rather block interrupts in the writer code path as
proposed in your previous email.

grant
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	hppa implementation
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Xref: news.gmane.org gmane.linux.ports.parisc:23942

On Thu, Aug 31, 2006 at 06:31:35AM -0600, Matthew Wilcox wrote:
> On Thu, Aug 31, 2006 at 12:06:37AM -0600, Grant Grundler wrote:
> > Here's the patch I ended up with.
> > Diff is also parked on gsyprf11:~grundler/diff-2.6.18-rc4-pa4-rwlocks-01
> > 
> > +static  __inline__ int __raw_read_trylock(raw_rwlock_t *rw)
> > +{
> > +	if (!__raw_spin_trylock(&rw->lock))
> > +		return 0;
> >  
> > +	rw->counter++;
> >  	__raw_spin_unlock(&rw->lock);
> > +	return 1;
> >  }
> 
> This has the false failure problem.  ie if another CPU is doing a
> read_lock() at the same time, it will fail to acquire the lock, even
> though it would succeed if it tried again.  I don't know if we have any
> code which depends upon that not failing, but it does seem a bit
> suboptimal.

trylock() variants are expected to fail some of the time.
But I agree readers should never fail because of another reader.
I guess we have to implement some number of retries (less than 5?).

> Fixing this is somewhat Hard.  My original suggestion was this:
> 
> retry:
> 	if (__raw_spin_trylock(&rw->lock)) {
> 		rw->counter++;
> 		__raw_spin_unlock(&rw->lock);
> 		return 1;
> 	} else if (rw->counter < 0) {
> 		return 0;
> 	} else {
> 		goto retry;
> 	}
> 
> But this leads to deadlock if called from interrupt context and the CPU
> had got to:
> 
> static  __inline__ void __raw_write_lock(raw_rwlock_t *rw)
> {
> retry:
>         __raw_spin_lock(&rw->lock);
> 
> <<<- here
> 
> and hadn't set counter to -1.

Drop the "if (rw->counter < 0)" test and we won't have a deadlock.
But your next idea on fixing that sounds good to me for other reasons.

> Now, we can fix that:
> 
> static  __inline__ void __raw_write_lock(raw_rwlock_t *rw)
> {
> 	unsigned long flags;
> retry:
> 	local_irq_save(flags);
>         __raw_spin_lock(&rw->lock);
...

I'm thinking we want to block interrupts here anyway to make sure
the writer gets done and releases the spinlock.

I'm also wondering if the writer code paths need to include "mb()"
to prevent the compiler and/or other back-end optimizers from
re-organizing the instruction stream and "leaking" other code
before "counter = -1" is set. James Bottomley already
fixed our regular spinlocks for this problem once before.

> A similar change has to be made to __raw_write_trylock too:

*nod*

> Better ideas, anyone?
> (And perhaps more importantly, anyone spot any holes in my reasoning?

Nope and nope.

> I'm not too happy disabling interrupts *after* disabling preemption.
> And of course, we disable interrupts twice when called with
> write_lock_irq.)

yup.

thanks,
grant
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Xref: news.gmane.org gmane.linux.ports.parisc:23943

On 8/31/06, Grant Grundler <grundler@parisc-linux.org> wrote:
> > 1. cr16 is treated as signed.
>
> This was by design. Paul Bame (IIRC) wrote this code and
> while I was never that comfortable with it, I could never
> find anything wrong with it either. Randolph Chung and I
> stared at timer_interrupt() _alot_.

It's twice as smart as I am, therefore I am four times too dumb to
maintain this code. My aim was ti simplify this code, because when the
new timer infrastructure goes into place it will be crucial that we
handle the wrapping right.

> > 2. No attempt is made to handle cr16 wrapping.
>
> The signed math was supposed to handle it.
> I believe it did but forgot details since looking at
> it a few years ago.

That is *even* worse, signed arithmetic overflow is compiler
implementation dependant. It's also therefore not very nice C code.
The overflow case is in the middle of the 32-bit range now, where you
had a very large positive number which wraps to a very large negative
number. The gap is almost the entire 32-bit range, or 27 seconds on a
160Mhz box as we have shown already.

> I personally prefer to NOT use signed math in this case.
> But that's honestly not a great reason to change this code.
> I'd really prefer some evidence the kernel code is wrong.

I agree, this patch was an attempt to provide an alternate
implementation that made sense and was maintainer friendly. I believe
we should be able to get this working better and handle the failures
seen on the slower boxes.

> And I've hacked your version some more.
> diff is below.

Thanks.

> I've included your changes to gettimeoffset() in my patch below
> and will review those next.

Ok.

> And something is certainly wrong with my version of the code.
> It seems to be running the system clock at ~ 1/2 speed now. :)
>
> odine:~# while : ; do sleep 10 ; ntpdate pool.ntp.org ; done
> 30 Aug 23:51:13 ntpdate[14051]: step time server 203.217.30.156 offset 60.165510 sec
> 30 Aug 23:51:39 ntpdate[14053]: step time server 203.217.30.156 offset 13.065388 sec
> 30 Aug 23:52:04 ntpdate[14055]: step time server 195.234.188.26 offset 11.578574 sec
> 30 Aug 23:52:31 ntpdate[14058]: step time server 203.217.30.156 offset 13.954358 sec
> ...

Technically it is implementation dependant, and can be as low as 1/2
the peak instruction rate. In correcting timer_interrupt, I remember
removing what I thought was a spurious 'clocktick' addition in the
implementation. Does cr16 *actuall* count at the instruction rate, or
does it count at 1/2 rate?

> > A. cr16 is treated as an unsigned long.
> > B. The following 3 scenarios exist.
> >
> > 1. The timer interrupt fires, and 'now' comes after 'next_tick'
>
> This is the "normal" case I think. 'now' should always lag behind
> 'next_tick' and how much depends on how long interrupts are blocked
> on that CPU.

Sounds good.

> > 2. The timer interrupt fires, and 'now' has wrapped and is before
> > 'next_tick'
> > 3. The timer interrupt fires, and 'now' is *just* before 'next_tick'
> >
> > In theory 99% of the time we should be in scenario 1. On occasion we
> > may miss a timer interrupt, end up close to wrapping, and we get
> > scenario 2.
>
> I'll assert we don't need to miss a timer interrupt to hit Scenario 2.
> All we need is a timer interrupt that scheduled near 4GB (but below)
> and 'normal' lag in interrupt delivery/handling will allow the
> CR16 to wrap.

A timer interrupt that is scheduled near the 4GB boundary is what I
meant by "end up close to wrapping." You are right that interrupt
delivery/handling lag might mean cr16 would wrap without causing a
missed interrupt.

> > Scenario 3 is just plain wrong and for now I will BUG() if
> > the timer fires before we intended.
>
> I agree.

I think the detection of Scenario 3 is wrong in your patch, I'll
epxlain further down in the code.

> ...
> > I assert that 'gettimeoffset' should never return a negative value. It
> > represents the postive adjustment accounting for the fact that we are
> > *part* of the way through a tick.
>
> I have to think about this more. But I wonder if how "halftick" is
> handled in timer_interrupt does not play well with this concept.

There is a bug here because of this, you are right to be warry of the
halftick adjustment. It is also needed in gettimeoffset, or "now" will
appear before "next_tick" without wrapping.

> Please review and see if I added any new bugs.

There is 1 addtional bug.

> Note that I replaced the "~0UL - XXX" with "~ XXX".
> I'll be off by one cycle. I don't care.
>
> thanks,
> grant
>
>
> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
> index 5facc9b..9f6cf58 100644
> --- a/arch/parisc/kernel/time.c
> +++ b/arch/parisc/kernel/time.c
> @@ -44,34 +44,58 @@ #endif
>
>  irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
>  {
> -       long now;
> -       long next_tick;
> -       int nticks;
> +       unsigned long now;
> +       unsigned long next_tick;
> +        unsigned long remainder;
> +       unsigned long ticks_elapsed = 0;
>         int cpu = smp_processor_id();
>
>         profile_tick(CPU_PROFILING, regs);
>
> -       now = mfctl(16);
> -       /* initialize next_tick to time at last clocktick */
> +       /* Initialize next_tick to the expected tick time. */
>         next_tick = cpu_data[cpu].it_value;
>
> -       /* since time passes between the interrupt and the mfctl()
> -        * above, it is never true that last_tick + clocktick == now.  If we
> -        * never miss a clocktick, we could set next_tick = last_tick + clocktick
> -        * but maybe we'll miss ticks, hence the loop.
> -        *
> -        * Variables are *signed*.
> +       /* Get current interval timer.
> +        * CR16 reads as 64 or 32 bit value depending CPU wide/narrow mode.
>          */
> +       now = mfctl(16);
> +
> +       /* Determine how much time elapsed.  */
> +       if (now > next_tick) {
> +               /* Scenario 1: "now" is late. A bit late is normal. */
> +               ticks_elapsed = (now - next_tick) / clocktick;
> +               remainder = now - (ticks_elapsed * clocktick);

What have you got against modulo? The correct math is as follows.

remainder = now - next_tick - ticks_elapsed * clocktick;

> +       }
> +        else {
> +               /* "now" is either early or cr16 wrapped.  */
> +               if (~next_tick < clocktick) {

Too clever for me :)

> +                       unsigned long difference;
> +
> +                       /* Scenario 2: A missed clock tick would wrap. */
> +                       difference = ~0UL - (next_tick - now);
> +                       ticks_elapsed = difference / clocktick;
> +                       remainder = difference % clocktick;
> +               } else {
> +                       /* Scenario 3: We didn't miss a clock tick.
> +                          "now" is early?  */
> +                       printk ("timer_interrupt: Now is early, now = %lx, next_tick = %lx, clocktick = %lx\n", now, next_tick, clocktick);
> +                       BUG ();
> +               }
> +       }
>
> -       nticks = 0;
> -       while((next_tick - now) < halftick) {
> -               next_tick += clocktick;
> -               nticks++;
> +       if (remainder > halftick) {
> +               /* More than 1/2 way into the next tick. It counts.  */
> +               ticks_elapsed++;
>         }
> +
> +       /* Add any full ticks that have elapsed plus the one we want next. */
> +       next_tick += (ticks_elapsed + 1) * clocktick;
> +
> +        /* Only bottom 32-bits of next_tick are written to cr16.  */
>         mtctl(next_tick, 16);
>         cpu_data[cpu].it_value = next_tick;
>
> -       while (nticks--) {
> +       while (ticks_elapsed--) {
>  #ifdef CONFIG_SMP
>                 smp_do_timer(regs);
>  #else
> @@ -124,21 +148,47 @@ #ifndef CONFIG_SMP
>          *    Once parisc-linux learns the cr16 difference between processors,
>          *    this could be made to work.
>          */
> -       long last_tick;
> -       long elapsed_cycles;
> +       unsigned long now;
> +       unsigned long last_tick;
> +       unsigned long next_tick;
> +       unsigned long next_next_tick;
> +       unsigned long elapsed_cycles;
> +       unsigned long usec;
> +       unsigned long lost;
>
>         /* it_value is the intended time of the next tick */
> -       last_tick = cpu_data[smp_processor_id()].it_value;
> +       next_tick = cpu_data[smp_processor_id()].it_value;
> +       next_next_tick = next_tick + clocktick;
>
> -       /* Subtract one tick and account for possible difference between
> -        * when we expected the tick and when it actually arrived.
> -        * (aka wall vs real)
> -        */
> -       last_tick -= clocktick * (jiffies - wall_jiffies + 1);
> -       elapsed_cycles = mfctl(16) - last_tick;
> +       /* This represents lost jiffies.  */
> +       lost = clocktick * (jiffies - wall_jiffies);
> +
> +       /* We roll back 1 tick.  */
> +       last_tick = next_tick - clocktick;
> +
> +       /* Read the hardware interval timer.  */
> +       now = mfctl(16);
> +
> +       if (now > last_tick) {
> +               /* Scenario 1: "now" is later than last_tick.  */
> +               elapsed_cycles = now - last_tick;
> +       } else {
> +               /* "now" is either early or cr16 wrapped.  */
> +               if (next_next_tick < last_tick) {

This could also use your clever "~next_tick < clocktick" trick.
Remember this is only a heuristic to catch wrapping.

> +                       /* Scenario 2: A missed clock tick would wrap. */
> +                       elapsed_cycles = ~0UL - (last_tick - now);
> +               } else {
> +                       /* Scenario 3: We didn't miss a clock tick.
> +                          "now" is early?  */
> +                       printk ("gettimeoffset: Now is early, now = %lx, last_tick = %lx, next_tick = %lx, clocktick = %lx\n", now, last_tick, next_tick, clocktick);
> +                       BUG ();
> +               }
> +       }

Somwhere in thie function we need to makeup for the halftick...

> -       /* the precision of this math could be improved */
> -       return elapsed_cycles / (PAGE0->mem_10msec / 10000);
> +       /* FIXME: Improve precision. */
> +       usec = elapsed_cycles * 10000 / PAGE0->mem_10msec;
> +       usec += lost;
> +       return usec;
>  #else
>         return 0;
>  #endif

Joel has already seen a BUG, which IMO is caused by gettimeoffset not
taking into account the halftick.

Cheers,
Carlos.
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On 8/30/06, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Sun, Aug 27, 2006 at 10:26:53PM +0200, Guy Martin wrote:
> > I wasn't able to reproduce at all on my C3600.
>
> Is your C3600 running a 64bit kernel?

No, I purposely run a 32-bit kernel for testing.

> CR16 is 4294967296 times bigger on a 64bit kernel, whereas
> the clockspeed of your C3600 is only about 4x faster...

Uh? I don't quite grok what you mean there.

Cheers,
Carlos.
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On Thu, Aug 31, 2006 at 02:52:44PM -0400, Carlos O'Donell wrote:
...
> >> 2. No attempt is made to handle cr16 wrapping.
> >
> >The signed math was supposed to handle it.
> >I believe it did but forgot details since looking at
> >it a few years ago.
> 
> That is *even* worse, signed arithmetic overflow is compiler
> implementation dependant. It's also therefore not very nice C code.
> The overflow case is in the middle of the 32-bit range now, where you
> had a very large positive number which wraps to a very large negative
> number. The gap is almost the entire 32-bit range, or 27 seconds on a
> 160Mhz box as we have shown already.

I think it's arbitrary where the overflow occurs.
Maybe unsigned math overflow is easier to visualize/understand.
At least it is for me.

> >I personally prefer to NOT use signed math in this case.
> >But that's honestly not a great reason to change this code.
> >I'd really prefer some evidence the kernel code is wrong.
> 
> I agree, this patch was an attempt to provide an alternate
> implementation that made sense and was maintainer friendly. I believe
> we should be able to get this working better and handle the failures
> seen on the slower boxes.

Yes. I'm now pretty sure the fix for that will be in gettimeoffset()
and not in timer_interrupt(). But I agree the two functions are very
similar but have to handle slightly different corner cases.

> >13.065388 sec
> >30 Aug 23:52:04 ntpdate[14055]: step time server 195.234.188.26 offset 
> >11.578574 sec
> >30 Aug 23:52:31 ntpdate[14058]: step time server 203.217.30.156 offset 
> >13.954358 sec
> >...
> 
> Technically it is implementation dependant, and can be as low as 1/2
> the peak instruction rate. In correcting timer_interrupt, I remember
> removing what I thought was a spurious 'clocktick' addition in the
> implementation.

I was thinking the opposite: I'm missing a "tick_elapsed" count
on each timer interrupt.

>  Does cr16 *actuall* count at the instruction rate, or
> does it count at 1/2 rate?

I _believe_ all implementations count at the actual rate.
At least I'm not aware of any implementations that don't
count at the advertized clock speed.

...
> I think the detection of Scenario 3 is wrong in your patch, I'll
> epxlain further down in the code.
...

> 
> >...
> >> I assert that 'gettimeoffset' should never return a negative value. It
> >> represents the postive adjustment accounting for the fact that we are
> >> *part* of the way through a tick.
> >
> >I have to think about this more. But I wonder if how "halftick" is
> >handled in timer_interrupt does not play well with this concept.
> 
> There is a bug here because of this, you are right to be warry of the
> halftick adjustment. It is also needed in gettimeoffset, or "now" will
> appear before "next_tick" without wrapping.

Sorry - this didn't make sense. Can you provide an example?
For simplicity assume a 5 bit counter and pick the values
that illustrate your case.


> >Please review and see if I added any new bugs.
> 
> There is 1 addtional bug.
...
> >+       /* Determine how much time elapsed.  */
> >+       if (now > next_tick) {
> >+               /* Scenario 1: "now" is late. A bit late is normal. */
> >+               ticks_elapsed = (now - next_tick) / clocktick;
> >+               remainder = now - (ticks_elapsed * clocktick);
> 
> What have you got against modulo?

Modulo is a division.
Division is much more expensive than integer multiplication.
Is there a way to do the division once _and_ get the remainder?

My assumption that integer multiplication is "cheaper"
could be wrong.

>  The correct math is as follows.
> 
> remainder = now - next_tick - ticks_elapsed * clocktick;

Erm, no.  ticks_elapsed was calculated here:
	ticks_elapsed = (now - next_tick) / clocktick;

(the line above.)
I'm taking advantage of truncation since this is integer division.
That make more sense?

> >+               /* "now" is either early or cr16 wrapped.  */
> >+               if (~next_tick < clocktick) {
> 
> Too clever for me :)

Now I'm worried. :)
I've already removed this code in the version I'm working on now.

...
> >+       } else {
> >+               /* "now" is either early or cr16 wrapped.  */
> >+               if (next_next_tick < last_tick) {
> 
> This could also use your clever "~next_tick < clocktick" trick.
> Remember this is only a heuristic to catch wrapping.

Yup - I'll post a new version that boots 64-bit correctly in a bit.
I've still not got the "wrapping" rules correct.

...
> Somwhere in thie function we need to makeup for the halftick...

Hrm. I need to think more about that. You might be right.

> Joel has already seen a BUG, which IMO is caused by gettimeoffset not
> taking into account the halftick.

ok. I was just looking at that.

thanks,
grant
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On Thu, Aug 31, 2006 at 10:27:40AM -0600, Grant Grundler wrote:
> trylock() variants are expected to fail some of the time.
> But I agree readers should never fail because of another reader.
> I guess we have to implement some number of retries (less than 5?).

I don't think we need retries; we're guaranteed to make forward
progress.  If we fail to acquire the lock, it's because it's either held
for a short duration by a reader, or for a long duration by a writer.
If it's a writer, we'll fail due to the counter being negative; if it's
a reader, we'll succeed soon.  Mmm.  Unless, of course, we interrupted a
read-locker ... crap.  They need to take the lock in an irqsafe way too.

> > But this leads to deadlock if called from interrupt context and the CPU
> > had got to:
> > 
> > static  __inline__ void __raw_write_lock(raw_rwlock_t *rw)
> > {
> > retry:
> >         __raw_spin_lock(&rw->lock);
> > 
> > <<<- here
> > 
> > and hadn't set counter to -1.
> 
> Drop the "if (rw->counter < 0)" test and we won't have a deadlock.
> But your next idea on fixing that sounds good to me for other reasons.

I don't understand why you think that.  Can you explain?

> > Now, we can fix that:
> > 
> > static  __inline__ void __raw_write_lock(raw_rwlock_t *rw)
> > {
> > 	unsigned long flags;
> > retry:
> > 	local_irq_save(flags);
> >         __raw_spin_lock(&rw->lock);
> ...
> 
> I'm thinking we want to block interrupts here anyway to make sure
> the writer gets done and releases the spinlock.

Umm.  Sounds like a spectacularly bad idea.  If the caller wanted to do
that, they would have called write_lock_irqsave() or write_lock_irq().

> I'm also wondering if the writer code paths need to include "mb()"
> to prevent the compiler and/or other back-end optimizers from
> re-organizing the instruction stream and "leaking" other code
> before "counter = -1" is set. James Bottomley already
> fixed our regular spinlocks for this problem once before.

With the out-of-line spinlocks (and for that matter, write locks),
that's not going to matter.  The only place that calls
__raw_write_lock() is in kernel/spinlock.c, so there's no way for gcc to
optimise that away.  I can put it in anyway, since it's not going to
make a difference.

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Xref: news.gmane.org gmane.linux.ports.parisc:23947

On Fri, Sep 01, 2006 at 08:01:23AM -0600, Matthew Wilcox wrote:
> On Thu, Aug 31, 2006 at 10:27:40AM -0600, Grant Grundler wrote:
> > trylock() variants are expected to fail some of the time.
> > But I agree readers should never fail because of another reader.
> > I guess we have to implement some number of retries (less than 5?).
> 
> I don't think we need retries; we're guaranteed to make forward
> progress.  If we fail to acquire the lock, it's because it's either held
> for a short duration by a reader, or for a long duration by a writer.
> If it's a writer, we'll fail due to the counter being negative; if it's
> a reader, we'll succeed soon.  Mmm.  Unless, of course, we interrupted a
> read-locker ... crap.  They need to take the lock in an irqsafe way too.

Yup...

> > Drop the "if (rw->counter < 0)" test and we won't have a deadlock.
> > But your next idea on fixing that sounds good to me for other reasons.
> 
> I don't understand why you think that.  Can you explain?

Without blocking interrupts, that test is reading a value
that's not deterministic. ie we don't when if/when we are
interrupting a writer. Failing the read lock is safe even
if it's not correct.


> > I'm thinking we want to block interrupts here anyway to make sure
> > the writer gets done and releases the spinlock.
> 
> Umm.  Sounds like a spectacularly bad idea.  If the caller wanted to do
> that, they would have called write_lock_irqsave() or write_lock_irq().

Well, ok - you're right about caller intentions. But the caller also has
no clue about parisc rw_locks and how fsck'd the implementation is.
I'm just "speculating out loud"  in order to make parisc implementation
work better in practice.

> With the out-of-line spinlocks (and for that matter, write locks),
> that's not going to matter.  The only place that calls
> __raw_write_lock() is in kernel/spinlock.c, so there's no way for gcc to
> optimise that away.  I can put it in anyway, since it's not going to
> make a difference.

I'm not sure that a good reason to put the mb() in.
Would "it's correct" be a better reason?
I'm thinking other people will look at the code when trying to
understand parisc.

thanks,
grant
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Subject: Re: [parisc-linux] some more questions about __raw_write_trylock()
	hppa implementation
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Xref: news.gmane.org gmane.linux.ports.parisc:23948

On Fri, Sep 01, 2006 at 09:57:31AM -0600, Grant Grundler wrote:
> > > Drop the "if (rw->counter < 0)" test and we won't have a deadlock.
> > > But your next idea on fixing that sounds good to me for other reasons.
> > 
> > I don't understand why you think that.  Can you explain?
> 
> Without blocking interrupts, that test is reading a value
> that's not deterministic. ie we don't when if/when we are
> interrupting a writer. Failing the read lock is safe even
> if it's not correct.

Oh, OK.  Understood.  I thought you had a neat optimisation there ;-)

> > > I'm thinking we want to block interrupts here anyway to make sure
> > > the writer gets done and releases the spinlock.
> > 
> > Umm.  Sounds like a spectacularly bad idea.  If the caller wanted to do
> > that, they would have called write_lock_irqsave() or write_lock_irq().
> 
> Well, ok - you're right about caller intentions. But the caller also has
> no clue about parisc rw_locks and how fsck'd the implementation is.
> I'm just "speculating out loud"  in order to make parisc implementation
> work better in practice.

It's not that bad.  Really ;-)

> > With the out-of-line spinlocks (and for that matter, write locks),
> > that's not going to matter.  The only place that calls
> > __raw_write_lock() is in kernel/spinlock.c, so there's no way for gcc to
> > optimise that away.  I can put it in anyway, since it's not going to
> > make a difference.
> 
> I'm not sure that a good reason to put the mb() in.
> Would "it's correct" be a better reason?
> I'm thinking other people will look at the code when trying to
> understand parisc.

I doubt it, or somebody might've spotted the, what, three or four
problems with our rwlocks that I've found?

 - an interrupt while taking or releasing a read_lock can deadlock
   against a read_lock.
 - an interrupt while holding a read_lock will deadlock against a
   read_trylock.
 - an interrupt while holding a write_lock will deadlock against a
   read_trylock or write_trylock.

Anyway, here's the current diff; I have a make -j4; make clean running
in an endless loop on nicol right now.  Any further suggestions for
stress-testing are welcome ... perhaps I'll install apache and run an
apache benchmark.

diff --git a/include/asm-parisc/spinlock.h b/include/asm-parisc/spinlock.h
index a93960e..97115dc 100644
--- a/include/asm-parisc/spinlock.h
+++ b/include/asm-parisc/spinlock.h
@@ -56,50 +56,70 @@ static inline int __raw_spin_trylock(raw
 }
 
 /*
- * Read-write spinlocks, allowing multiple readers
- * but only one writer.
+ * Read-write spinlocks, allowing multiple readers but only one writer.
+ * The spinlock is held by the writer, preventing any readers or other
+ * writers from grabbing the rwlock.  Readers use the lock to serialise their
+ * access to the counter (which records how many readers currently hold the
+ * lock).  Linux rwlocks are unfair to writers; they can be starved for
+ * an indefinite time by readers.  They can also be taken in interrupt context,
+ * so we have to disable interrupts when acquiring the spin lock to be sure
+ * that an interrupting reader doesn't get an inconsistent view of the lock.
  */
 
-#define __raw_read_trylock(lock) generic__raw_read_trylock(lock)
-
-/* read_lock, read_unlock are pretty straightforward.  Of course it somehow
- * sucks we end up saving/restoring flags twice for read_lock_irqsave aso. */
-
 static  __inline__ void __raw_read_lock(raw_rwlock_t *rw)
 {
+	unsigned long flags;
+	local_irq_save(flags);
 	__raw_spin_lock(&rw->lock);
-
 	rw->counter++;
-
 	__raw_spin_unlock(&rw->lock);
+	local_irq_restore(flags);
 }
 
 static  __inline__ void __raw_read_unlock(raw_rwlock_t *rw)
 {
+	unsigned long flags;
+	local_irq_save(flags);
 	__raw_spin_lock(&rw->lock);
-
 	rw->counter--;
-
 	__raw_spin_unlock(&rw->lock);
+	local_irq_restore(flags);
 }
 
-/* write_lock is less trivial.  We optimistically grab the lock and check
- * if we surprised any readers.  If so we release the lock and wait till
- * they're all gone before trying again
- *
- * Also note that we don't use the _irqsave / _irqrestore suffixes here.
- * If we're called with interrupts enabled and we've got readers (or other
- * writers) in interrupt handlers someone fucked up and we'd dead-lock
- * sooner or later anyway.   prumpf */
+static __inline__ int __raw_read_trylock(raw_rwlock_t *rw)
+{
+	unsigned long flags;
+ retry:
+	local_irq_save(flags);
+	if (__raw_spin_trylock(&rw->lock)) {
+		rw->counter++;
+		__raw_spin_unlock(&rw->lock);
+		local_irq_restore(flags);
+		return 1;
+	}
+
+	local_irq_restore(flags);
+	/* If write-locked, we fail to acquire the lock */
+	if (rw->counter < 0)
+		return 0;
+
+	/* Wait until we have a realistic chance at the lock */
+	while (__raw_spin_is_locked(&rw->lock) && rw->counter >= 0)
+		cpu_relax();
+
+	goto retry;
+}
 
-static  __inline__ void __raw_write_lock(raw_rwlock_t *rw)
+static __inline__ void __raw_write_lock(raw_rwlock_t *rw)
 {
+	unsigned long flags;
 retry:
+	local_irq_save(flags);
 	__raw_spin_lock(&rw->lock);
 
-	if(rw->counter != 0) {
-		/* this basically never happens */
+	if (rw->counter != 0) {
 		__raw_spin_unlock(&rw->lock);
+		local_irq_restore(flags);
 
 		while (rw->counter != 0)
 			cpu_relax();
@@ -107,31 +127,35 @@ retry:
 		goto retry;
 	}
 
-	/* got it.  now leave without unlocking */
-	rw->counter = -1; /* remember we are locked */
+	rw->counter = -1; /* mark as write-locked */
+	mb();
+	local_irq_restore(flags);
 }
 
-/* write_unlock is absolutely trivial - we don't have to wait for anything */
-
-static  __inline__ void __raw_write_unlock(raw_rwlock_t *rw)
+static __inline__ void __raw_write_unlock(raw_rwlock_t *rw)
 {
 	rw->counter = 0;
 	__raw_spin_unlock(&rw->lock);
 }
 
-static  __inline__ int __raw_write_trylock(raw_rwlock_t *rw)
+static __inline__ int __raw_write_trylock(raw_rwlock_t *rw)
 {
-	__raw_spin_lock(&rw->lock);
-	if (rw->counter != 0) {
-		/* this basically never happens */
-		__raw_spin_unlock(&rw->lock);

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On Wed, 2006-08-30 at 16:23 -0400, Carlos O'Donell wrote:
> It actaully turns out I don't think I ever booted this patch, my
> palo.conf was hosed and I was writing the wrong kernel. It was too
> good to be true :)
> 
> I'll have a go at testing this again tonight.

Actually, according to my analysis on ioz (pa8800) there seem to be some
hidden issues with our implementation (i.e. it's not the mathematics).

The first problem is that interrupts are re-entrant, so the timer
interrupt can get re-interrupted.  If this happens between the mfctl(16)
and the mtctl(), which is made much longer by the use of while loops,
then there's a small possibility that the interrupt caused us to miss
the next tick (i.e. cr16 moved beyond next_tick while in the interrupt).
I see this very occasionally on the pa8800 caused by flush IPIs (since
the cache is so huge) ... it's probably caused by SCSI interrupts on the
C3xxx that everyone else is testing with.  However, when this happens,
you have to wait for cr16 to wrap before you get another timer
interrupt, which I believe to be the source of the time jumps and
negative offsets in gettimeoffset().

My proposed fix for this is below.  However, we seem to have a few other
issues:

     1. On SMP, cr16 of the secondary processors (and next_tick) is
        never initialised ... we just wait for the timer to wrap and
        then pick up ticking from there.
     2. processor_probe() blows away all of the next_tick data when it's
        called (once for every CPU)
     3. We're regularly missing multiple ticks ... mainly below about
        30 .. there must be some cause for this but I can't immediately
        find it.
     4. we don't obey CONFIG_HZ at all the clock is always either 1000
        for pa2.0 or 100 for pa1.0

James

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 5facc9b..93322a2 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -48,9 +48,13 @@ irqreturn_t timer_interrupt(int irq, voi
 	long next_tick;
 	int nticks;
 	int cpu = smp_processor_id();
+	unsigned long flags;
 
 	profile_tick(CPU_PROFILING, regs);
 
+	/* Don't want to be interrupted while calculating
+	 * time offsets */
+	local_irq_save(flags);
 	now = mfctl(16);
 	/* initialize next_tick to time at last clocktick */
 	next_tick = cpu_data[cpu].it_value;
@@ -63,13 +67,24 @@ irqreturn_t timer_interrupt(int irq, voi
 	 * Variables are *signed*.
 	 */
 
-	nticks = 0;
-	while((next_tick - now) < halftick) {
+	/* Don't do expensive mul and div for the likely case */
+	if (likely(now - next_tick < clocktick)) {
+		nticks = 1;
 		next_tick += clocktick;
+	} else {
+		nticks = ((now - next_tick)/clocktick) + 1;
+		next_tick += clocktick*nticks;
+	}
+	/* Don't interrupt too much.  If we only have half
+	 * the time to go to the next tick, push it out one
+	 * more tick */
+	if (unlikely(next_tick - now < halftick)) {
 		nticks++;
+		next_tick += clocktick;
 	}
 	mtctl(next_tick, 16);
 	cpu_data[cpu].it_value = next_tick;
+	local_irq_restore(flags);
 
 	while (nticks--) {
 #ifdef CONFIG_SMP


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> > Can you remove the PCI_DEVICE(...) lines with PCI_DEVICE_HP_VISUALIZEFX*
> > in drivers/video/console/sticore.c and see what happens? That should
> > at least allow them to boot.

This allows the machine to boot.  Tested using 2.6.17-pa6.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Aug 31, 2006 at 12:53:27AM -0600, Grant Grundler wrote:
> And I've hacked your version some more.
> diff is below.

version #3: seems to be working fine on 64-bit SMP.
32-bit UP kernel is still under construction.

That means gettimeoffset() hasn't been tested.
And I'm getting the following warnings on my b2600:
...
Setting the system clock..                                                      
timer_interrupt(CPU 0): delayed! run ntpdate ticks 859 cycles FFF51A1C rem 40E59C next/now FFFE7A9D/96080
gettimeoffset(CPU -119762782): missing ticks!cycles FFC87AE4 prev/now/next 6EBEA41/14C624/4C4B40  clock 0
gettimeoffset(CPU -177625053): missing ticks!cycles FFC87AE4 prev/now/next A5ED2C0/14C624/4C4B40  clock 12
gettimeoffset(CPU -238800592): missing ticks!cycles FFC87AE4 prev/now/next E0449B3/14C624/4C4B40  clock 12
gettimeoffset(CPU -302979574): missing ticks!cycles FFC87AE4 prev/now/next 11D794D9/14C624/4C4B40  clock 0
Sysgettimeoffset(CPU -361861366): missing ticks!cycles FFC87AE4 prev/now/next 155A0BD9/14C624/4C4B40  clock 12                                                  
tem Clock set. Local time: Fri Sep  1 22:42:09 UTC 2006. 

gettimeoffset printk is busticated. I'll fix that in the next version.
But it looks like wrapped values are causing problems.

The timer_interrupt warning might be reasonable given we are making
a call to firmware to set the clock and block interrupts for
the duration.


In addition to time.c, two more files are touched:
	smp.c	I couldn't see where slave CPUs would start
		the interval timer and added the call here.

	param.h	Use CONFIG_HZ for interval timer.
		We were ignored this before.

I just realized one small change to arch/parisc/kernel/processor.c
is missin from this diff. We don't want processor_probe() to clobber
CPU0's cpu_data. "it_value" has already been initialized.

enjoy!
grant


diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 98e4095..f33e8de 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -430,8 +430,9 @@ smp_do_timer(struct pt_regs *regs)
 static void __init
 smp_cpu_init(int cpunum)
 {
-	extern int init_per_cpu(int);  /* arch/parisc/kernel/setup.c */
+	extern int init_per_cpu(int);  /* arch/parisc/kernel/processor.c */
 	extern void init_IRQ(void);    /* arch/parisc/kernel/irq.c */
+	extern void start_cpu_itimer(void); /* arch/parisc/kernel/time.c */
 
 	/* Set modes and Enable floating point coprocessor */
 	(void) init_per_cpu(cpunum);
@@ -457,6 +458,7 @@ smp_cpu_init(int cpunum)
 	enter_lazy_tlb(&init_mm, current);
 
 	init_IRQ();   /* make sure no IRQ's are enabled or pending */
+	start_cpu_itimer();
 }
 
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 5facc9b..337c4ec 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -35,8 +35,8 @@ #include <linux/timex.h>
 /* xtime and wall_jiffies keep wall-clock time */
 extern unsigned long wall_jiffies;
 
-static long clocktick __read_mostly;	/* timer cycles per tick */
-static long halftick __read_mostly;
+static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
+static unsigned long halftick __read_mostly;
 
 #ifdef CONFIG_SMP
 extern void smp_do_timer(struct pt_regs *regs);
@@ -44,34 +44,77 @@ #endif
 
 irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
-	long now;
-	long next_tick;
-	int nticks;
+	unsigned long now;
+	unsigned long next_tick;
+	unsigned long cycles_elapsed;
+        unsigned long cycles_remainder;
+	unsigned long ticks_elapsed = 1;	/* at least one elapsed */
 	int cpu = smp_processor_id();
 
 	profile_tick(CPU_PROFILING, regs);
 
-	now = mfctl(16);
-	/* initialize next_tick to time at last clocktick */
+	/* Initialize next_tick to the expected tick time. */
 	next_tick = cpu_data[cpu].it_value;
 
-	/* since time passes between the interrupt and the mfctl()
-	 * above, it is never true that last_tick + clocktick == now.  If we
-	 * never miss a clocktick, we could set next_tick = last_tick + clocktick
-	 * but maybe we'll miss ticks, hence the loop.
-	 *
-	 * Variables are *signed*.
+	/* Get current interval timer.
+	 * CR16 reads as 64 bits in CPU wide mode.
+	 * CR16 reads as 32 bits in CPU narrow mode.
 	 */
+	now = mfctl(16);
+
+	cycles_elapsed = now - next_tick;
+
+	/* Determine how much time elapsed.  */
+	if (now < next_tick) {
+		/* Scenario 2: CR16 wrapped after clock tick.
+		 * 1's complement will give us the "elapse cycles".
+		 *
+		 * This "cr16 wrapped" cruft is primarily for 32-bit kernels.
+		 * So think "unsigned long is u32" when reading the code.
+		 * And yes, of course 64-bit will someday wrap, but only
+	  	 * every 198841 days on a 1GHz machine.
+		 */
+		cycles_elapsed = ~cycles_elapsed;   /* off by one cycle - don't care */
+	}
+
+	ticks_elapsed += cycles_elapsed / clocktick;
+	cycles_remainder = cycles_elapsed % clocktick;
 
-	nticks = 0;
-	while((next_tick - now) < halftick) {
-		next_tick += clocktick;
-		nticks++;
+	/* Can we differentiate between "early CR16" (aka Scenario 1) and
+	 * "long delay" (aka Scenario 3)? I don't think so.
+	 *
+	 * We expected timer_interrupt to be delivered at least a few hundred
+	 * cycles after the IT fires. But it's arbitrary how much time passes
+	 * before we call it "late". I've picked one second.
+	 */
+	if (ticks_elapsed > HZ) {
+		/* Scenario 3: very long delay?  bad in any case */
+		printk (KERN_CRIT "timer_interrupt(CPU %d): delayed! run ntpdate"
+			" ticks %ld cycles %lX rem %lX"
+			" next/now %lX/%lX\n",
+			cpu,
+			ticks_elapsed, cycles_elapsed, cycles_remainder,
+			next_tick, now );
+
+		ticks_elapsed = 1;	/* hack to limit damage in loop below */
 	}
+
+
+	/* Determine when (in CR16 cycles) next IT interrupt will fire.
+	 * We want IT to fire modulo clocktick even if we miss/skip some.
+	 * But those interrupts don't in fact get delivered that regularly.
+	 */
+	next_tick = now + (clocktick - cycles_remainder);
+
+	/* Program the IT when to deliver the next interrupt. */
+        /* Only bottom 32-bits of next_tick are written to cr16.  */
 	mtctl(next_tick, 16);
 	cpu_data[cpu].it_value = next_tick;
 
-	while (nticks--) {
+	/* Now that we are done mucking with unreliable delivery of interrupts,
+	 * go do system house keeping.
+	 */
+	while (ticks_elapsed--) {
 #ifdef CONFIG_SMP
 		smp_do_timer(regs);
 #else
@@ -124,21 +167,40 @@ #ifndef CONFIG_SMP
 	 *    Once parisc-linux learns the cr16 difference between processors,
 	 *    this could be made to work.
 	 */
-	long last_tick;
-	long elapsed_cycles;
+	unsigned long now;
+	unsigned long prev_tick;
+	unsigned long next_tick;
+	unsigned long elapsed_cycles;
+	unsigned long usec;
 
-	/* it_value is the intended time of the next tick */
-	last_tick = cpu_data[smp_processor_id()].it_value;
+	next_tick = cpu_data[smp_processor_id()].it_value;
+	now = mfctl(16);	/* Read the hardware interval timer.  */
 
-	/* Subtract one tick and account for possible difference between
-	 * when we expected the tick and when it actually arrived.
-	 * (aka wall vs real)
-	 */
-	last_tick -= clocktick * (jiffies - wall_jiffies + 1);
-	elapsed_cycles = mfctl(16) - last_tick;
+	prev_tick = next_tick - clocktick;
 
-	/* the precision of this math could be improved */
-	return elapsed_cycles / (PAGE0->mem_10msec / 10000);
+	/* Assume Scenario 1: "now" is later than prev_tick.  */
+	elapsed_cycles = now - prev_tick;
+
+	if (now < prev_tick) {
+		/* Scenario 2: CR16 wrapped!
+		 * 1's complement is close enough.
+		 */
+		elapsed_cycles = ~elapsed_cycles;
+	}
+
+	if (elapsed_cycles > (HZ * clocktick)) {
+		/* Scenario 3: clock ticks are missing. */
+		printk (KERN_CRIT "gettimeoffset(CPU %d): missing ticks!"
+			"cycles %lX prev/now/next %lX/%lX/%lX  clock %lX\n",
+			 elapsed_cycles, prev_tick, now, next_tick, clocktick);
+	}
+
+	/* FIXME: Can we improve the precision? Not with PAGE0. */
+	usec = (elapsed_cycles * 10000) / PAGE0->mem_10msec;
+
+	/* add in "lost" jiffies */
+	usec += clocktick * (jiffies - wall_jiffies);
+	return usec;
 #else
 	return 0;
 #endif
@@ -149,6 +211,7 @@ do_gettimeofday (struct timeval *tv)
 {
 	unsigned long flags, seq, usec, sec;
 
+	/* Hold xtime_lock and adjust timeval.  */
 	do {
 		seq = read_seqbegin_irqsave(&xtime_lock, flags);
 		usec = gettimeoffset();
@@ -156,25 +219,13 @@ do_gettimeofday (struct timeval *tv)
 		usec += (xtime.tv_nsec / 1000);
 	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
 
-	if (unlikely(usec > LONG_MAX)) {
-		/* This can happen if the gettimeoffset adjustment is
-		 * negative and xtime.tv_nsec is smaller than the
-		 * adjustment */
-		printk(KERN_ERR "do_gettimeofday() spurious xtime.tv_nsec of %ld\n", usec);
-		usec += USEC_PER_SEC;
-		--sec;
-		/* This should never happen, it means the negative
-		 * time adjustment was more than a second, so there's
-		 * something seriously wrong */
-		BUG_ON(usec > LONG_MAX);
-	}
-
-
+	/* Move adjusted usec's into sec's.  */
 	while (usec >= USEC_PER_SEC) {
 		usec -= USEC_PER_SEC;
 		++sec;
 	}
 
+	/* Return adjusted result.  */
 	tv->tv_sec = sec;
 	tv->tv_usec = usec;
 }
@@ -226,22 +277,24 @@ unsigned long long sched_clock(void)
 }
 
 
+void __init start_cpu_itimer(void)
+{
+	unsigned int cpu = smp_processor_id();
+	unsigned long next_tick = mfctl(16) + clocktick;
+
+	mtctl(next_tick, 16);		/* kick off Interval Timer (CR16) */
+
+	cpu_data[cpu].it_value = next_tick;
+}
+
 void __init time_init(void)
 {
-	unsigned long next_tick;
 	static struct pdc_tod tod_data;
 
 	clocktick = (100 * PAGE0->mem_10msec) / HZ;
 	halftick = clocktick / 2;
 
-	/* Setup clock interrupt timing */
-
-	next_tick = mfctl(16);
-	next_tick += clocktick;
-	cpu_data[smp_processor_id()].it_value = next_tick;
-
-	/* kick off Itimer (CR16) */
-	mtctl(next_tick, 16);
+	start_cpu_itimer();	/* get CPU 0 started */
 
 	if(pdc_tod_read(&tod_data) == 0) {
 		write_seqlock_irq(&xtime_lock);
diff --git a/include/asm-parisc/param.h b/include/asm-parisc/param.h
index 07cb9b9..32e03d8 100644
--- a/include/asm-parisc/param.h
+++ b/include/asm-parisc/param.h
@@ -2,13 +2,9 @@ #ifndef _ASMPARISC_PARAM_H
 #define _ASMPARISC_PARAM_H
 
 #ifdef __KERNEL__
-# ifdef CONFIG_PA20
-#  define HZ		1000		/* Faster machines */
-# else
-#  define HZ		100		/* Internal kernel timer frequency */
-# endif
-# define USER_HZ	100		/* .. some user interfaces are in "ticks" */
-# define CLOCKS_PER_SEC	(USER_HZ)	/* like times() */
+#define HZ		CONFIG_HZ
+#define USER_HZ		100		/* some user API use "ticks" */
+#define CLOCKS_PER_SEC	(USER_HZ)	/* like times() */
 #endif
 
 #ifndef HZ
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On Fri, Sep 01, 2006 at 04:48:25PM -0600, Grant Grundler wrote:
> On Thu, Aug 31, 2006 at 12:53:27AM -0600, Grant Grundler wrote:
> > And I've hacked your version some more.
> > diff is below.
> 
> version #3: seems to be working fine on 64-bit SMP.
> 32-bit UP kernel is still under construction.
...
> gettimeoffset printk is busticated. I'll fix that in the next version.
> But it looks like wrapped values are causing problems.

Looks like only the printk is broken.

The attached test program (based on Guy's description) seems
to be working fine on 32-bit UP/b2600:
...
Time : 1157151360 sec, 106770 usec
Time : 1157151361 sec, 116765 usec
Time : 1157151362 sec, 126770 usec
Time : 1157151363 sec, 136764 usec
...

Note there is ~10ms shift on each "Time" output.
I believe this is because the task will run on the next
tick _after_ the 1 second time has expired.

hth,
grant


#include <stdio.h>
#include <sys/time.h>
#include <time.h>
main()
{
	struct timeval tv;

	while(gettimeofday(&tv, NULL) == 0) {
		printf("Time : %d sec, %d usec\n", tv.tv_sec, tv.tv_usec);
		sleep(1);
	}
}
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On Sun, Sep 03, 2006 at 11:14:53AM -0500, James Bottomley wrote:
> Since the timer interrupts miss so many ticks, halftick processing looks
> like a good idea to me.

I was going to argue halfticks are a bad idea.
They just make it all more complicated.
My last version of the rewrite patch does away with them complete.

>   Thus, we have to assume gettimeoffset() can be
> negative by up to half a tick.  The current processing in
> do_gettimeofday() already copes nicely with this.

It deals nicely _without_ halfticks too.

grant
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On Sat, Sep 02, 2006 at 10:52:06AM -0500, James Bottomley wrote:
> The first problem is that interrupts are re-entrant, so the timer
> interrupt can get re-interrupted.

Doesn't this violate one of the basic tenants of linux interrupts?

I know the interrupt handler (same instance) can't be invoked on
two different CPUs and it seems re-entrance would be a similar
case.

>      1. On SMP, cr16 of the secondary processors (and next_tick) is
>         never initialised ... we just wait for the timer to wrap and
>         then pick up ticking from there.

I saw that too and happen to have committed the fix for it last night.

>      2. processor_probe() blows away all of the next_tick data when it's
>         called (once for every CPU)

Fixed that too :)

>      3. We're regularly missing multiple ticks ... mainly below about
>         30 .. there must be some cause for this but I can't immediately
>         find it.

Ok. I'm not sure how to look for that either.

>      4. we don't obey CONFIG_HZ at all the clock is always either 1000
>         for pa2.0 or 100 for pa1.0

Also committed a fix for that.

> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c

Is it ok if I only add the irqsave/restore to my current patch?
I also like the "avoid div/mul ops" test too.

I'd like to defer discussion on halfticks for now.
I consider that an optimization we can defer for now.

thanks,
grant
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On Sun, Sep 03, 2006 at 10:54:18AM -0400, Carlos O'Donell wrote:
> >Yes. I'm now pretty sure the fix for that will be in gettimeoffset()
> >and not in timer_interrupt(). But I agree the two functions are very
> >similar but have to handle slightly different corner cases.
> 
> I still disagree, if you see James most recent patch which disabled
> IRQ's while we handle the timer interrupt, you will see that both
> functions are closer to being similar :)

I'm not sure about that. James might be wrong in this case.
See do_cpu_irq_mask().
It clears EIEM and thus disables all external interrupts
including the interval timer. The comment is wrong in that
we disable all EIEM bits, not just TIMER and IPI.

> I will assert that at the end of the day we will be writing
> "cr16_offset" which is a generic function that can be called with
> interrupts disabled and *that* will handle all the corner cases and be
> called by "timer_interrupt" and "gettimeoffset".

hrm ok. I'll keep that in mind. I'm not convinced of that
yet since those are both performance critical piecves of code.

...
> >Sorry - this didn't make sense. Can you provide an example?
> >For simplicity assume a 5 bit counter and pick the values
> >that illustrate your case.
> 
> 5 bit counter.
> it_value = 5
> cr16 = ... free running.
> clocktick = 5
> halftick = 2
> 
> a. Counter goes off at 8. Expected to go off at 5.

Itimer will interrupt at 5 if it was expect to go off at 5.
timer_interrupt() will never get invoked until 8 becuase of
interrupt handling overhead.

> b. Since (8 - 5) == 3 > 2 or a halftick, we push forward 2 ticks
> c. Set it_value to 15.

Ok. I really don't like the business with halftick pushing
system time "into the future".  Maybe we can just drop one tick
on the floor. Ie skip it and handle it on the next "full" tick?

> 1. User calls gettimeofday.
> 2. cr16 says time is 9
> 3. The it_value is 15, subtract a clocktick and you get 10.
> 
> *boom*
> 
> The value of cr16 is < the value of a rolled back clocktick.
> In counting the halftick, we need to rollback the halftick in gettimeoffset.

No. We need to just drop the next tick and not count it until
the next round.

> >Division is much more expensive than integer multiplication.
> >Is there a way to do the division once _and_ get the remainder?
> >
> >My assumption that integer multiplication is "cheaper"
> >could be wrong.
> 
> I timed this for some reasonable values of dividend and divisor.
> The division and modulo operation is ~156 cycles.
> The integer multiplication is ~73 cycles.
> This is the average cr16 tick over 1000 runs.
> The integer multiplication is "cheaper"

ok - many thanks for doing that.

...
> You say the following equations are correct:
> 
> ticks_elapsed = (now - next_tick) / clocktick;
> remainder = now - (ticks_elapsed * clocktick);
> 
> The ticks_elapsed equation *is* correct.
> 
> The remainder equation is wrong. The value of "now" could be 4GB, the
> value of "next_tick" could be "4GB - clocktick", the ticks_elapsed
> value is 1. This is correct. However, the remainder is going to be
> "4GB - 1 * clocktick" which is incorrect. The remainder in this case
> is zero.

> 
> To get the remainder you *must* do:
> 
> remainder = (now - next_tick) - (ticks_elapsed * clocktick)
> 
> This gives you the left over ticks you didn't count. I have added
> brackets here to clarify the math.

Yes - got it now. thanks again!

> I have come to the conclusion that adding the halftick is conceptually 
> wrong.
> 
> Follow me on this.
> 
> 1. By adding the halftick, as a real tick, the system time moves into
> the future.

I'm already convinced this is wrong and leads to too many complications.

> 2. A system with future time means we need negative gettimeoffset 
> adjustments.
> 3. Negative gettimeoffset adjustment complicate things needlessly.
> 4. Halfticks should not be counted, and should be ignored.
> 5. Ignoring halfticks is not a problem, when the late timer interrupt
> arrives we will accrue all full ticks anyway.
> 
> What do you think?

total agreement.
I'll rework my code later today to try to match the discussion so far.

thanks,
grant
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> Is it ok if I only add the irqsave/restore to my current patch?
> I also like the "avoid div/mul ops" test too.

I agree on that.  They are very expensive, especially in 64-bit code.

I'm playing with the patch below.  The main thing I tried to do is
reduce the amount of code in the irqsave/restore.  GCC didn't do a
great job of optimizing the code.  I think we would get better code
if clocktick and halftick were copied to temps before the irqsave.

I was also concerned about nticks not being unsigned long.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: time.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/time.c,v
retrieving revision 1.16
diff -u -p -u -r1.16 time.c
--- time.c	24 Jun 2006 16:05:18 -0000	1.16
+++ time.c	3 Sep 2006 19:42:24 -0000
@@ -47,29 +47,34 @@ irqreturn_t timer_interrupt(int irq, voi
 {
 	long now;
 	long next_tick;
-	int nticks;
+	unsigned long nticks = 0;
 	int cpu = smp_processor_id();
+	long flags;
 
 	profile_tick(CPU_PROFILING, regs);
 
-	now = mfctl(16);
-	/* initialize next_tick to time at last clocktick */
+	/* Initialize next_tick to time at last clocktick */
 	next_tick = cpu_data[cpu].it_value;
 
-	/* since time passes between the interrupt and the mfctl()
-	 * above, it is never true that last_tick + clocktick == now.  If we
-	 * never miss a clocktick, we could set next_tick = last_tick + clocktick
-	 * but maybe we'll miss ticks, hence the loop.
+	/* Since time passes between the interrupt and the mfctl(),
+	 * it is never true that last_tick + clocktick == now.
+	 * If we never miss a clocktick, we could set
+	 * next_tick = last_tick + clocktick, * but maybe we'll miss
+	 * ticks, hence the loop.
 	 *
 	 * Variables are *signed*.
 	 */
 
-	nticks = 0;
+	/* Don't want to be interrupted while calculating
+	 * the time for the next tick.  */
+	local_irq_save(flags);
+	now = mfctl(16);
 	while((next_tick - now) < halftick) {
 		next_tick += clocktick;
 		nticks++;
 	}
 	mtctl(next_tick, 16);
+	local_irq_restore(flags);
 	cpu_data[cpu].it_value = next_tick;
 
 	while (nticks--) {
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On Sun, 2006-09-03 at 13:55 -0600, Grant Grundler wrote:
> I'm not sure about that. James might be wrong in this case.
> See do_cpu_irq_mask().
> It clears EIEM and thus disables all external interrupts
> including the interval timer. The comment is wrong in that
> we disable all EIEM bits, not just TIMER and IPI.

Yes ... I thought I fixed that the last time I pulled this code apart,
but apparently not.

I'll concentrate on fixing this, since I suspect it is the root cause of
the horrible interrupt latencies causing the ticks to back up.

James


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On 9/3/06, Grant Grundler <grundler@parisc-linux.org> wrote:
> I'll rework my code later today to try to match the discussion so far.

Original code:

 58         now = mfctl(16);
 60         next_tick = cpu_data[cpu].it_value;
 70         nticks = 0;
 71         while((next_tick - now) < halftick) {
 72                 next_tick += clocktick;
 73                 nticks++;
 74         }
 75         mtctl(next_tick, 16);
 76         cpu_data[cpu].it_value = next_tick;

1. Let us assume a 32-bit CPU with a 32-bit counter and a 32-bit
trigger register.
2. Assume that it_value is *near* the signed long boundary (0x7fffff)
3. The counter and trigger match, raising an interrupt.
4. During the interrupt delivery cr16 wraps into negative signed long,
but only a little bit.
    Let us say cr16 is ~(0x7fffffff + 50)
5. The value "next_tick - now" is equivalent to:
    "next_tick - (-now)" since now is negative.
    "next_tick + now"
6. The signed long math wraps, and the solution is a small negative
number, or small positive number, in this case it is +48.
7. The while loop adds clockticks until we are positive and bigger
than halftick. Adding 1 clocktick.

The signed math works correctly as an approximation (off by 2) and I
do admit I find no fault in the math, but it is still confusing.

However, as James points out, if the *real* cr16 gets ahead of the
newly set it_value, by delaying this function due to other interrupts,
then we will have to wait for a full wrap to have it trigger another
timer interrupt.

Cheers,
Carlos.
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> The signed math works correctly as an approximation (off by 2) and I
> do admit I find no fault in the math, but it is still confusing.

The signed math works as long as the latency in delivering the
interruption is not larger than about half a cycle.  Once
next_tick - now >= halftick, then we stop updating next_tick
until the counter wraps.  Probably, this could be extended
using unsigned math but you still have to handle the wrap.

The other issue is to ensure that the compare value for the
next interrupt is set before the counter passes this count.
We could have an interruption between the read and write
of cr16 even with interrupts disabled.  So, I think we should
minimize memory accesses.  The enclosed change eliminates
the memory accesses.

It may be we don't need the save/restore if interrupts are disabled.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: time.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/time.c,v
retrieving revision 1.16
diff -u -p -u -r1.16 time.c
--- time.c	24 Jun 2006 16:05:18 -0000	1.16
+++ time.c	3 Sep 2006 21:17:25 -0000
@@ -47,29 +47,36 @@ irqreturn_t timer_interrupt(int irq, voi
 {
 	long now;
 	long next_tick;
-	int nticks;
+	unsigned long nticks = 0;
+	long ct = clocktick;
+	long ht = halftick;
 	int cpu = smp_processor_id();
+	long flags;
 
 	profile_tick(CPU_PROFILING, regs);
 
-	now = mfctl(16);
-	/* initialize next_tick to time at last clocktick */
+	/* Initialize next_tick to time at last clocktick */
 	next_tick = cpu_data[cpu].it_value;
 
-	/* since time passes between the interrupt and the mfctl()
-	 * above, it is never true that last_tick + clocktick == now.  If we
-	 * never miss a clocktick, we could set next_tick = last_tick + clocktick
-	 * but maybe we'll miss ticks, hence the loop.
+	/* Since time passes between the interrupt and the mfctl(),
+	 * it is never true that last_tick + clocktick == now.
+	 * If we never miss a clocktick, we could set
+	 * next_tick = last_tick + clocktick, * but maybe we'll miss
+	 * ticks, hence the loop.
 	 *
 	 * Variables are *signed*.
 	 */
 
-	nticks = 0;
-	while((next_tick - now) < halftick) {
-		next_tick += clocktick;
+	/* Don't want to be interrupted while calculating
+	 * the time for the next tick.  */
+	local_irq_save(flags);
+	now = mfctl(16);
+	while((next_tick - now) < ht) {
+		next_tick += ct;
 		nticks++;
 	}
 	mtctl(next_tick, 16);
+	local_irq_restore(flags);
 	cpu_data[cpu].it_value = next_tick;
 
 	while (nticks--) {
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On 8/31/06, Grant Grundler <grundler@parisc-linux.org> wrote:
> I think it's arbitrary where the overflow occurs.
> Maybe unsigned math overflow is easier to visualize/understand.
> At least it is for me.

I agree with you, unsigned long code is easier to maintain.
Signed math overflow is implementation defined behaviour, it should
not be relied upon.

> Yes. I'm now pretty sure the fix for that will be in gettimeoffset()
> and not in timer_interrupt(). But I agree the two functions are very
> similar but have to handle slightly different corner cases.

I still disagree, if you see James most recent patch which disabled
IRQ's while we handle the timer interrupt, you will see that both
functions are closer to being similar :)

I will assert that at the end of the day we will be writing
"cr16_offset" which is a generic function that can be called with
interrupts disabled and *that* will handle all the corner cases and be
called by "timer_interrupt" and "gettimeoffset".

> I was thinking the opposite: I'm missing a "tick_elapsed" count
> on each timer interrupt.

That might also be the case.

> >  Does cr16 *actuall* count at the instruction rate, or
> > does it count at 1/2 rate?
>
> I _believe_ all implementations count at the actual rate.
> At least I'm not aware of any implementations that don't
> count at the advertized clock speed.

OK.

> > There is a bug here because of this, you are right to be warry of the
> > halftick adjustment. It is also needed in gettimeoffset, or "now" will
> > appear before "next_tick" without wrapping.
>
> Sorry - this didn't make sense. Can you provide an example?
> For simplicity assume a 5 bit counter and pick the values
> that illustrate your case.

5 bit counter.
it_value = 5
cr16 = ... free running.
clocktick = 5
halftick = 2

a. Counter goes off at 8. Expected to go off at 5.
b. Since (8 - 5) == 3 > 2 or a halftick, we push forward 2 ticks
c. Set it_value to 15.

1. User calls gettimeofday.
2. cr16 says time is 9
3. The it_value is 15, subtract a clocktick and you get 10.

*boom*

The value of cr16 is < the value of a rolled back clocktick.
In counting the halftick, we need to rollback the halftick in gettimeoffset.

> > What have you got against modulo?
>
> Modulo is a division.
> Division is much more expensive than integer multiplication.
> Is there a way to do the division once _and_ get the remainder?
>
> My assumption that integer multiplication is "cheaper"
> could be wrong.

I timed this for some reasonable values of dividend and divisor.
The division and modulo operation is ~156 cycles.
The integer multiplication is ~73 cycles.
This is the average cr16 tick over 1000 runs.
The integer multiplication is "cheaper"

> >  The correct math is as follows.
> >
> > remainder = now - next_tick - ticks_elapsed * clocktick;
>
> Erm, no.  ticks_elapsed was calculated here:
>         ticks_elapsed = (now - next_tick) / clocktick;
>
> (the line above.)
> I'm taking advantage of truncation since this is integer division.
> That make more sense?

Let us do some math.

You say the following equations are correct:

ticks_elapsed = (now - next_tick) / clocktick;
remainder = now - (ticks_elapsed * clocktick);

The ticks_elapsed equation *is* correct.

The remainder equation is wrong. The value of "now" could be 4GB, the
value of "next_tick" could be "4GB - clocktick", the ticks_elapsed
value is 1. This is correct. However, the remainder is going to be
"4GB - 1 * clocktick" which is incorrect. The remainder in this case
is zero.

To get the remainder you *must* do:

remainder = (now - next_tick) - (ticks_elapsed * clocktick)

This gives you the left over ticks you didn't count. I have added
brackets here to clarify the math.

> > >+               /* "now" is either early or cr16 wrapped.  */
> > >+               if (~next_tick < clocktick) {
> >
> > Too clever for me :)
>
> Now I'm worried. :)
> I've already removed this code in the version I'm working on now.

I was only joking here, but a comment is absolutely required when you
use clever 1's compliment tricks to approximate more compilcated
mathematics. Including a comment saying that it's 1 off.

> > Somwhere in thie function we need to makeup for the halftick...
>
> Hrm. I need to think more about that. You might be right.

I have come to the conclusion that adding the halftick is conceptually wrong.

Follow me on this.

1. By adding the halftick, as a real tick, the system time moves into
the future.
2. A system with future time means we need negative gettimeoffset adjustments.
3. Negative gettimeoffset adjustment complicate things needlessly.
4. Halfticks should not be counted, and should be ignored.
5. Ignoring halfticks is not a problem, when the late timer interrupt
arrives we will accrue all full ticks anyway.

What do you think?

Cheers,
Carlos.
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On Sun, Sep 03, 2006 at 03:59:34PM -0400, John David Anglin wrote:
> > Is it ok if I only add the irqsave/restore to my current patch?
> > I also like the "avoid div/mul ops" test too.
> 
> I agree on that.  They are very expensive, especially in 64-bit code.
> 
> I'm playing with the patch below.  The main thing I tried to do is
> reduce the amount of code in the irqsave/restore.

I've not applied the irqsave/restore since I don't think it does anything.
do_cpu_irq_mask() doesn't allow nested external interrupts.

> GCC didn't do a great job of optimizing the code.  I think we would
> get better code if clocktick and halftick were copied to temps before
> the irqsave.

hrm...I would expect the same result from __read_mostly but can understand
why that's not as useful as I hoped.

Can we tell GCC that clocktick doesn't change during execution of this code?
ie despite being a global, it's a "constant" and doesn't need to be
reloaded on each loop iteration?


> I was also concerned about nticks not being unsigned long.

I agree. I'm leaning very strongly in favor of the unsigned version
of the code. Even though I think Carlos demonstrated the signed
math is correct. So unless someone objects to the unsigned version
I posted earlier soon (assuming I address all bug fixes), I'd like
to commit that in the next couple of days.

thanks,
grant

> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
> 
> Index: time.c
> ===================================================================
> RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/time.c,v
> retrieving revision 1.16
> diff -u -p -u -r1.16 time.c
> --- time.c	24 Jun 2006 16:05:18 -0000	1.16
> +++ time.c	3 Sep 2006 19:42:24 -0000
> @@ -47,29 +47,34 @@ irqreturn_t timer_interrupt(int irq, voi
>  {
>  	long now;
>  	long next_tick;
> -	int nticks;
> +	unsigned long nticks = 0;
>  	int cpu = smp_processor_id();
> +	long flags;
>  
>  	profile_tick(CPU_PROFILING, regs);
>  
> -	now = mfctl(16);
> -	/* initialize next_tick to time at last clocktick */
> +	/* Initialize next_tick to time at last clocktick */
>  	next_tick = cpu_data[cpu].it_value;
>  
> -	/* since time passes between the interrupt and the mfctl()
> -	 * above, it is never true that last_tick + clocktick == now.  If we
> -	 * never miss a clocktick, we could set next_tick = last_tick + clocktick
> -	 * but maybe we'll miss ticks, hence the loop.
> +	/* Since time passes between the interrupt and the mfctl(),
> +	 * it is never true that last_tick + clocktick == now.
> +	 * If we never miss a clocktick, we could set
> +	 * next_tick = last_tick + clocktick, * but maybe we'll miss
> +	 * ticks, hence the loop.
>  	 *
>  	 * Variables are *signed*.
>  	 */
>  
> -	nticks = 0;
> +	/* Don't want to be interrupted while calculating
> +	 * the time for the next tick.  */
> +	local_irq_save(flags);
> +	now = mfctl(16);
>  	while((next_tick - now) < halftick) {
>  		next_tick += clocktick;
>  		nticks++;
>  	}
>  	mtctl(next_tick, 16);
> +	local_irq_restore(flags);
>  	cpu_data[cpu].it_value = next_tick;
>  
>  	while (nticks--) {
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> > GCC didn't do a great job of optimizing the code.  I think we would
> > get better code if clocktick and halftick were copied to temps before
> > the irqsave.
> 
> hrm...I would expect the same result from __read_mostly but can understand
> why that's not as useful as I hoped.

They are getting relead on every use.

> Can we tell GCC that clocktick doesn't change during execution of this code?
> ie despite being a global, it's a "constant" and doesn't need to be
> reloaded on each loop iteration?

I think it's tricky.  Constants go in readonly data.  However, the
values need to be initialized at runtime.  Copying the values to
"register" tempories before the loop seems to resolve the problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] [PATCH] timer_interrupt and gettimeoffset.
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> I've not applied the irqsave/restore since I don't think it does anything.
> do_cpu_irq_mask() doesn't allow nested external interrupts.

I updated what I'm testing to remove the irqsave/restore.  I'm interested
to see if this helps various random failures that occur, particularly in
the libjava testsuite with thread intensive code.

> > GCC didn't do a great job of optimizing the code.  I think we would
> > get better code if clocktick and halftick were copied to temps before
> > the irqsave.
> 
> hrm...I would expect the same result from __read_mostly but can understand
> why that's not as useful as I hoped.

#define __read_mostly __attribute__((__section__(".data.read_mostly")))

GCC doesn't do anything special with this section as far as I can tell.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: time.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/time.c,v
retrieving revision 1.16
diff -u -p -u -r1.16 time.c
--- time.c	24 Jun 2006 16:05:18 -0000	1.16
+++ time.c	4 Sep 2006 03:26:43 -0000
@@ -47,26 +47,38 @@ irqreturn_t timer_interrupt(int irq, voi
 {
 	long now;
 	long next_tick;
-	int nticks;
+	unsigned long nticks = 0;
+	long ct = clocktick;
+	long ht = halftick;
 	int cpu = smp_processor_id();
 
 	profile_tick(CPU_PROFILING, regs);
 
-	now = mfctl(16);
-	/* initialize next_tick to time at last clocktick */
+	/* Initialize next_tick to time of last clocktick */
 	next_tick = cpu_data[cpu].it_value;
 
-	/* since time passes between the interrupt and the mfctl()
-	 * above, it is never true that last_tick + clocktick == now.  If we
-	 * never miss a clocktick, we could set next_tick = last_tick + clocktick
-	 * but maybe we'll miss ticks, hence the loop.
+	/* Since time passes between the interrupt and the mfctl(),
+	 * it is never true that last_tick + clocktick == now.
+	 * If we never missed a clocktick, we could set
+	 * next_tick = last_tick + clocktick, but maybe we'll
+	 * miss ticks, hence the loop.  It also ensures that the
+	 * count for the next interrupt is at least a half tick
+	 * away.
+	 *
+	 * Variables are *signed*.  As a result, onc cycle of ticks
+	 * will be missed if interrupt latency every causes the 
+	 * difference between next_tick and now to exceed roughly
+	 * half the 32-bit wrap counter period.
+	 *
+	 * We only use local automatic variables in the loop to
+	 * avoid the possibility of an interruption delaying the
+	 * setting of cr16 for the next tick.
 	 *
-	 * Variables are *signed*.
 	 */
 
-	nticks = 0;
-	while((next_tick - now) < halftick) {
-		next_tick += clocktick;
+	now = mfctl(16);
+	while((next_tick - now) < ht) {
+		next_tick += ct;
 		nticks++;
 	}
 	mtctl(next_tick, 16);
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On 9/2/06, James Bottomley <James.Bottomley@steeleye.com> wrote:
> Actually, according to my analysis on ioz (pa8800) there seem to be some
> hidden issues with our implementation (i.e. it's not the mathematics).

Thanks for the review.

> The first problem is that interrupts are re-entrant, so the timer
> interrupt can get re-interrupted.  If this happens between the mfctl(16)
> and the mtctl(), which is made much longer by the use of while loops,
> then there's a small possibility that the interrupt caused us to miss
> the next tick (i.e. cr16 moved beyond next_tick while in the interrupt).
> I see this very occasionally on the pa8800 caused by flush IPIs (since
> the cache is so huge) ... it's probably caused by SCSI interrupts on the
> C3xxx that everyone else is testing with.  However, when this happens,
> you have to wait for cr16 to wrap before you get another timer
> interrupt, which I believe to be the source of the time jumps and
> negative offsets in gettimeoffset().

You address two issues here 1) Long times between timer_interrupts,
2) negative offsets in gettimeoffset().

The first issue is a problem I had not considered. It is a very likely
scenario that timer_interrupt is interrupted by another
timer_interrupt, and overwrites the cr16 value of the most recent
interrupt. Your patch here is definately correct, I had considered the
reentrancy of this function.

Your guess that this is the solution to problem 2) is not quite right.
I will argue that the "halftick" counting is at fault here. When a
"halftick" is counted as a full tick the system time moves into the
future. All calls to gettimeoffset must therefore return negative
adjustments. I think removing the erroneous halftick counting is the
solution to issue 2.

> My proposed fix for this is below.  However, we seem to have a few other
> issues:
>
>      1. On SMP, cr16 of the secondary processors (and next_tick) is
>         never initialised ... we just wait for the timer to wrap and
>         then pick up ticking from there.
>      2. processor_probe() blows away all of the next_tick data when it's
>         called (once for every CPU)
>      3. We're regularly missing multiple ticks ... mainly below about
>         30 .. there must be some cause for this but I can't immediately
>         find it.

#3 is worrying.

>      4. we don't obey CONFIG_HZ at all the clock is always either 1000
>         for pa2.0 or 100 for pa1.0
>
> James
>
> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
> index 5facc9b..93322a2 100644
> --- a/arch/parisc/kernel/time.c
> +++ b/arch/parisc/kernel/time.c
> @@ -48,9 +48,13 @@ irqreturn_t timer_interrupt(int irq, voi
>         long next_tick;
>         int nticks;
>         int cpu = smp_processor_id();
> +       unsigned long flags;
>
>         profile_tick(CPU_PROFILING, regs);
>
> +       /* Don't want to be interrupted while calculating
> +        * time offsets */
> +       local_irq_save(flags);
>         now = mfctl(16);
>         /* initialize next_tick to time at last clocktick */
>         next_tick = cpu_data[cpu].it_value;
> @@ -63,13 +67,24 @@ irqreturn_t timer_interrupt(int irq, voi
>          * Variables are *signed*.
>          */
>
> -       nticks = 0;
> -       while((next_tick - now) < halftick) {
> +       /* Don't do expensive mul and div for the likely case */
> +       if (likely(now - next_tick < clocktick)) {
> +               nticks = 1;
>                 next_tick += clocktick;
> +       } else {
> +               nticks = ((now - next_tick)/clocktick) + 1;
> +               next_tick += clocktick*nticks;
> +       }
> +       /* Don't interrupt too much.  If we only have half
> +        * the time to go to the next tick, push it out one
> +        * more tick */
> +       if (unlikely(next_tick - now < halftick)) {
>                 nticks++;
> +               next_tick += clocktick;
>         }
>         mtctl(next_tick, 16);
>         cpu_data[cpu].it_value = next_tick;
> +       local_irq_restore(flags);
>
>         while (nticks--) {
>  #ifdef CONFIG_SMP
>

Grant, we should merge James' fix into the current working patch for
timer cleanups.

Cheers,
Carlos.
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On Sun, 2006-09-03 at 13:38 -0600, Grant Grundler wrote:
> Doesn't this violate one of the basic tenants of linux interrupts?
> 
> I know the interrupt handler (same instance) can't be invoked on
> two different CPUs and it seems re-entrance would be a similar
> case.

re-entrant is the wrong word ... however all linux interrupt handlers
should be interruptible (unless they specifically disable interrupts).
Ours apparently still aren't, so I'll see about fixing them.

The timer interrupt is the exception, actually, because it's set
IRQF_DISABLED which means no interrupts in timer_interrupt() until
they're specifically enabled, which doesn't happen until well into the
softirq processing.

James


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On Sun, 2006-09-03 at 13:31 -0600, Grant Grundler wrote:
> On Sun, Sep 03, 2006 at 11:14:53AM -0500, James Bottomley wrote:
> > Since the timer interrupts miss so many ticks, halftick processing looks
> > like a good idea to me.
> 
> I was going to argue halfticks are a bad idea.
> They just make it all more complicated.
> My last version of the rewrite patch does away with them complete.

I tried this on ioz ... you can simply remove the halftick code in my
version of the patch.  What happens is that we start to drop astonishing
number of ticks occasionally ... it looks like we're getting wrap
conditions again.

James


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Subject: Re: [parisc-linux] [PATCH] timer_interrupt and gettimeoffset.
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> On Sun, 2006-09-03 at 13:31 -0600, Grant Grundler wrote:
> > On Sun, Sep 03, 2006 at 11:14:53AM -0500, James Bottomley wrote:
> > > Since the timer interrupts miss so many ticks, halftick processing looks
> > > like a good idea to me.
> > 
> > I was going to argue halfticks are a bad idea.
> > They just make it all more complicated.
> > My last version of the rewrite patch does away with them complete.
> 
> I tried this on ioz ... you can simply remove the halftick code in my
> version of the patch.  What happens is that we start to drop astonishing
> number of ticks occasionally ... it looks like we're getting wrap
> conditions again.

There needs to be a check to ensure that the code has enough time
to set cr16 with the new compare time before the counter passes this
value.  If it misses, the counter will wrap.  This probably doesn't
need to be a full half tick if it's desireable to avoid negative
offsets.

In my mind, it's important to ensure that timer interrupts are not
disabled for long periods.  If that's not possible, we could go back
to 100 Hz.  However, I've been using 1000 Hz in an embedded project
using a small 8-bit micro running at 40 MHz.  So, I think 1000 Hz
should be possible on most PA processors.

I've reworked my previous patch to use unsigned variables.  As a
result, it can handle twice the latency.  There's one unlikely case
that could be detected.  That's an exact wrap of the counter
(next_tick == now).  This is extremely unlikely on LP64.  On 32-bit
kernels, we can't handle latencies larger than 0x100000000, so it
didn't seem worthwhile checking for this special case.

There's weren't any problems with the libjava testsuite with the
last patch, but one run probably isn't enough to be sure that this
change helps.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Index: time.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/time.c,v
retrieving revision 1.16
diff -u -p -u -r1.16 time.c
--- time.c	24 Jun 2006 16:05:18 -0000	1.16
+++ time.c	4 Sep 2006 16:29:34 -0000
@@ -36,8 +36,8 @@
 /* xtime and wall_jiffies keep wall-clock time */
 extern unsigned long wall_jiffies;
 
-static long clocktick __read_mostly;	/* timer cycles per tick */
-static long halftick __read_mostly;
+static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
+static unsigned long halftick __read_mostly;
 
 #ifdef CONFIG_SMP
 extern void smp_do_timer(struct pt_regs *regs);
@@ -45,28 +45,41 @@ extern void smp_do_timer(struct pt_regs 
 
 irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
-	long now;
-	long next_tick;
-	int nticks;
+	unsigned long now;
+	unsigned long next_tick;
+	unsigned long nticks = 0;
+	unsigned long ct = clocktick;
+	unsigned long ht = halftick;
 	int cpu = smp_processor_id();
 
 	profile_tick(CPU_PROFILING, regs);
 
-	now = mfctl(16);
-	/* initialize next_tick to time at last clocktick */
+	/* Initialize next_tick to time of last clocktick */
 	next_tick = cpu_data[cpu].it_value;
 
-	/* since time passes between the interrupt and the mfctl()
-	 * above, it is never true that last_tick + clocktick == now.  If we
-	 * never miss a clocktick, we could set next_tick = last_tick + clocktick
-	 * but maybe we'll miss ticks, hence the loop.
+	/* Since time passes between the interrupt and the mfctl(),
+	 * it is never true that last_tick + clocktick == now.
+	 * If we never missed a clocktick, we could set
+	 * next_tick = last_tick + clocktick, but maybe we'll
+	 * miss ticks, hence the loop.  It also ensures that the
+	 * count for the next interrupt is at least a half tick
+	 * away.
+	 *
+	 * We use local automatic variables to avoid the
+	 * possibility of an interruption delaying the setting
+	 * of cr16 for the next tick.
 	 *
-	 * Variables are *signed*.
 	 */
 
-	nticks = 0;
-	while((next_tick - now) < halftick) {
-		next_tick += clocktick;
+	now = mfctl(16);
+	while((now - next_tick) >= ct) {
+		next_tick += ct;
+		nticks++;
+	}
+	next_tick += ct;
+	nticks++;
+	if ((next_tick - now) < ht) {
+		next_tick += ct;
 		nticks++;
 	}
 	mtctl(next_tick, 16);
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On Mon, 2006-09-04 at 12:57 -0400, John David Anglin wrote:
> There needs to be a check to ensure that the code has enough time
> to set cr16 with the new compare time before the counter passes this
> value.  If it misses, the counter will wrap.  This probably doesn't
> need to be a full half tick if it's desireable to avoid negative
> offsets.

Exactly!

> In my mind, it's important to ensure that timer interrupts are not
> disabled for long periods.  If that's not possible, we could go back
> to 100 Hz.  However, I've been using 1000 Hz in an embedded project
> using a small 8-bit micro running at 40 MHz.  So, I think 1000 Hz
> should be possible on most PA processors.

Well ... I'm not sure about the rest of the PA world.  It's certainly
not possible on ioz (or any other pa8800).  According to my benchmarks,
the cache flush IPI takes 47ms to execute.  However, the pa8800 has such
a huge cache, it might not take this long on the other PA boxes.

James


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Subject: [parisc-linux] [PATCH] make parisc interrupts nest properly
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Xref: news.gmane.org gmane.linux.ports.parisc:23969

Linux is designed so that one interrupt can be interrupted by another
(but not by itself).  The idea behind this is to help reduce latency.
Parisc interrupts have never allowed nesting.  We physically disable all
interrupts in the eiem register before entering interrupt handlers, so
even if the handler enables interrupts, nothing ever fires.

I won't apply this until we've got the timers sorted out, because it
will only complicate things (also note that the timer interrupts are
IRQF_DISABLED, so we're guaranteed not to take any interrupts in them
until local_irq_enable() is called).

James

Index: parisc-2.6/arch/parisc/kernel/irq.c
===================================================================
--- parisc-2.6.orig/arch/parisc/kernel/irq.c	2006-09-03 21:06:41.000000000 -0700
+++ parisc-2.6/arch/parisc/kernel/irq.c	2006-09-04 08:10:47.000000000 -0700
@@ -45,6 +45,17 @@
 */
 static volatile unsigned long cpu_eiem = 0;
 
+/*
+** ack bitmap ... habitually set to 1, but reset to zero
+** between ->ack() and ->end() of the interrupt to prevent
+** re-interruption of a processing interrupt.
+*/
+static volatile unsigned long global_ack_eiem = ~0UL;
+/*
+** Local bitmap, same as above but for per-cpu interrupts
+*/
+static DEFINE_PER_CPU(unsigned long, local_ack_eiem) = ~0UL;
+
 static void cpu_disable_irq(unsigned int irq)
 {
 	unsigned long eirr_bit = EIEM_MASK(irq);
@@ -62,13 +73,6 @@
 
 	cpu_eiem |= eirr_bit;
 
-	/* FIXME: while our interrupts aren't nested, we cannot reset
-	 * the eiem mask if we're already in an interrupt.  Once we
-	 * implement nested interrupts, this can go away
-	 */
-	if (!in_interrupt())
-		set_eiem(cpu_eiem);
-
 	/* This is just a simple NOP IPI.  But what it does is cause
 	 * all the other CPUs to do a set_eiem(cpu_eiem) at the end
 	 * of the interrupt handler */
@@ -84,13 +88,46 @@
 void no_ack_irq(unsigned int irq) { }
 void no_end_irq(unsigned int irq) { }
 
+void cpu_ack_irq(unsigned int irq)
+{
+	unsigned long mask = EIEM_MASK(irq);
+	int cpu = smp_processor_id();
+
+	/* Clear in EIEM so we can no longer process */
+	if (CHECK_IRQ_PER_CPU(irq_desc[irq].status))
+		per_cpu(local_ack_eiem, cpu) &= ~mask;
+	else
+		global_ack_eiem &= ~mask;
+
+	/* disable the interrupt */
+	set_eiem(cpu_eiem & global_ack_eiem & per_cpu(local_ack_eiem, cpu));
+	/* and now ack it */
+	mtctl(mask, 23);
+}
+
+void cpu_end_irq(unsigned int irq)
+{
+	unsigned long mask = EIEM_MASK(irq);
+	int cpu = smp_processor_id();
+
+	/* set it in the eiems---it's no longer in process */
+	if (CHECK_IRQ_PER_CPU(irq_desc[irq].status))
+		per_cpu(local_ack_eiem, cpu) |= mask;
+	else
+		global_ack_eiem |= mask;
+
+	/* enable the interrupt */
+	set_eiem(cpu_eiem & global_ack_eiem & per_cpu(local_ack_eiem, cpu));
+}
+
+
 #ifdef CONFIG_SMP
 int cpu_check_affinity(unsigned int irq, cpumask_t *dest)
 {
 	int cpu_dest;
 
 	/* timer and ipi have to always be received on all CPUs */
-	if (irq == TIMER_IRQ || irq == IPI_IRQ) {
+	if (CHECK_IRQ_PER_CPU(irq)) {
 		/* Bad linux design decision.  The mask has already
 		 * been set; we must reset it */
 		irq_desc[irq].affinity = CPU_MASK_ALL;
@@ -119,8 +156,8 @@
 	.shutdown	= cpu_disable_irq,
 	.enable		= cpu_enable_irq,
 	.disable	= cpu_disable_irq,
-	.ack		= no_ack_irq,
-	.end		= no_end_irq,
+	.ack		= cpu_ack_irq,
+	.end		= cpu_end_irq,
 #ifdef CONFIG_SMP
 	.set_affinity	= cpu_set_affinity_irq,
 #endif
@@ -298,82 +335,69 @@
 	return virt_irq - CPU_IRQ_BASE;
 }
 
+static inline int eirr_to_irq(unsigned long eirr)
+{
+#ifdef CONFIG_64BIT
+	int bit = fls64(eirr);
+#else
+	int bit = fls(eirr);
+#endif
+	return (BITS_PER_LONG - bit) + TIMER_IRQ;
+}
+
 /* ONLY called from entry.S:intr_extint() */
 void do_cpu_irq_mask(struct pt_regs *regs)
 {
 	unsigned long eirr_val;
-
-	irq_enter();
-
-	/*
-	 * Don't allow TIMER or IPI nested interrupts.
-	 * Allowing any single interrupt to nest can lead to that CPU
-	 * handling interrupts with all enabled interrupts unmasked.
-	 */
-	set_eiem(0UL);
-
-	/* 1) only process IRQs that are enabled/unmasked (cpu_eiem)
-	 * 2) We loop here on EIRR contents in order to avoid
-	 *    nested interrupts or having to take another interrupt
-	 *    when we could have just handled it right away.
-	 */
-	for (;;) {
-		unsigned long bit = (1UL << (BITS_PER_LONG - 1));
-		unsigned int irq;
-		eirr_val = mfctl(23) & cpu_eiem;
-		if (!eirr_val)
-			break;
-
-		mtctl(eirr_val, 23); /* reset bits we are going to process */
-
-		/* Work our way from MSb to LSb...same order we alloc EIRs */
-		for (irq = TIMER_IRQ; eirr_val && bit; bit>>=1, irq++) {
+	int irq, cpu = smp_processor_id();
 #ifdef CONFIG_SMP
-			cpumask_t dest = irq_desc[irq].affinity;
+	cpumask_t dest;
 #endif
-			if (!(bit & eirr_val))
-				continue;
 
-			/* clear bit in mask - can exit loop sooner */
-			eirr_val &= ~bit;
+	local_irq_disable();
+	irq_enter();
 
-#ifdef CONFIG_SMP
-			/* FIXME: because generic set affinity mucks
-			 * with the affinity before sending it to us
-			 * we can get the situation where the affinity is
-			 * wrong for our CPU type interrupts */
-			if (irq != TIMER_IRQ && irq != IPI_IRQ &&
-			    !cpu_isset(smp_processor_id(), dest)) {
-				int cpu = first_cpu(dest);
-
-				printk(KERN_DEBUG "redirecting irq %d from CPU %d to %d\n",
-				       irq, smp_processor_id(), cpu);
-				gsc_writel(irq + CPU_IRQ_BASE,
-					   cpu_data[cpu].hpa);
-				continue;
-			}
-#endif
+	eirr_val = mfctl(23) & cpu_eiem & global_ack_eiem &
+		per_cpu(local_ack_eiem, cpu);
+	if (!eirr_val)
+		goto set_out;
+	irq = eirr_to_irq(eirr_val);
 
-			__do_IRQ(irq, regs);
-		}
+#ifdef CONFIG_SMP
+	dest = irq_desc[irq].affinity;
+	if (CHECK_IRQ_PER_CPU(irq_desc[irq].status) &&
+	    !cpu_isset(smp_processor_id(), dest)) {
+		int cpu = first_cpu(dest);
+
+		printk(KERN_DEBUG "redirecting irq %d from CPU %d to %d\n",
+		       irq, smp_processor_id(), cpu);
+		gsc_writel(irq + CPU_IRQ_BASE,
+			   cpu_data[cpu].hpa);
+		goto set_out;
 	}
+#endif
+	__do_IRQ(irq, regs);
 
-	set_eiem(cpu_eiem);	/* restore original mask */
+ out:
 	irq_exit();
-}
+	return;
 
+ set_out:
+	set_eiem(cpu_eiem & global_ack_eiem & per_cpu(local_ack_eiem, cpu));
+	goto out;
+}
 
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
-	.flags = IRQF_DISABLED,
+	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
-	.flags = IRQF_DISABLED,
+	.flags = IRQF_DISABLED | IRQF_PERCPU,
 };
 #endif
 
Index: parisc-2.6/drivers/parisc/iosapic.c
===================================================================
--- parisc-2.6.orig/drivers/parisc/iosapic.c	2006-09-03 21:06:42.000000000 -0700
+++ parisc-2.6/drivers/parisc/iosapic.c	2006-09-03 21:11:00.000000000 -0700
@@ -692,6 +692,7 @@
 	DBG(KERN_DEBUG "end_irq(%d): eoi(%p, 0x%x)\n", irq,
 			vi->eoi_addr, vi->eoi_data);
 	iosapic_eoi(vi->eoi_addr, vi->eoi_data);
+	cpu_end_irq(irq);
 }
 
 static unsigned int iosapic_startup_irq(unsigned int irq)
@@ -728,7 +729,7 @@
 	.shutdown =	iosapic_disable_irq,
 	.enable =	iosapic_enable_irq,
 	.disable =	iosapic_disable_irq,
-	.ack =		no_ack_irq,
+	.ack =		cpu_ack_irq,
 	.end =		iosapic_end_irq,
 #ifdef CONFIG_SMP
 	.set_affinity =	iosapic_set_affinity_irq,
Index: parisc-2.6/include/asm-parisc/irq.h
===================================================================
--- parisc-2.6.orig/include/asm-parisc/irq.h	2006-09-03 21:06:43.000000000 -0700
+++ parisc-2.6/include/asm-parisc/irq.h	2006-09-03 21:11:00.000000000 -0700
@@ -39,6 +39,8 @@
  */
 void no_ack_irq(unsigned int irq);
 void no_end_irq(unsigned int irq);
+void cpu_ack_irq(unsigned int irq);
+void cpi_end_irq(unsigned int irq);
 
 extern int txn_alloc_irq(unsigned int nbits);
 extern int txn_claim_irq(int);


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Xref: news.gmane.org gmane.linux.ports.parisc:23970

On Sun, 2006-09-03 at 11:00 -0400, Carlos O'Donell wrote:
> You address two issues here 1) Long times between timer_interrupts,
> 2) negative offsets in gettimeoffset().
> 
> The first issue is a problem I had not considered. It is a very likely
> scenario that timer_interrupt is interrupted by another
> timer_interrupt, and overwrites the cr16 value of the most recent
> interrupt. Your patch here is definately correct, I had considered the
> reentrancy of this function.

Actually, we don't have a re-entrancy problem: the way the EIEM works,
we can't get another timer_interrupt until we come out of this one.  We
can, however, get all other interrupts in this code.   Like I said, on
pa8800 the culprit was cache flushing IPI's, which can take > 1ms to
execute (because the cache is so huge).

> Your guess that this is the solution to problem 2) is not quite right.
> I will argue that the "halftick" counting is at fault here. When a
> "halftick" is counted as a full tick the system time moves into the
> future. All calls to gettimeoffset must therefore return negative
> adjustments. I think removing the erroneous halftick counting is the
> solution to issue 2.

Memory is cheap in this array.  What we should really have is two cycle
values:  prev_tick and next_tick.  Then we can run do_gettimeoffset from
prev_tick (the cycle value at last interrupt) and thus not muck about
trying to work out from jiffies if this is a halftick or a multiple
tick.

James



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On Sun, 2006-09-03 at 11:00 -0400, Carlos O'Donell wrote:
> Your guess that this is the solution to problem 2) is not quite right.
> I will argue that the "halftick" counting is at fault here. When a
> "halftick" is counted as a full tick the system time moves into the
> future. All calls to gettimeoffset must therefore return negative
> adjustments. I think removing the erroneous halftick counting is the
> solution to issue 2.


Actually, I think we just accept it as a feature rather than a bug.
Since the timer interrupts miss so many ticks, halftick processing looks
like a good idea to me.  Thus, we have to assume gettimeoffset() can be
negative by up to half a tick.  The current processing in
do_gettimeofday() already copes nicely with this.

James


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> On Mon, 2006-09-04 at 12:57 -0400, John David Anglin wrote:
> > There needs to be a check to ensure that the code has enough time
> > to set cr16 with the new compare time before the counter passes this
> > value.  If it misses, the counter will wrap.  This probably doesn't
> > need to be a full half tick if it's desireable to avoid negative
> > offsets.
> 
> Exactly!

The loop in the last timer patch that I sent, as compiled for a 32-bit 
c3k kernel, is four instructions.  Using a 500 us half tick time and
assuming a slow 50 MHz cpu, I estimate we should be able to handle
latencies up to about 6 seconds.  The maximum latency time for faster
cpus are proportionately longer.  That should be enough to handle most
circumstances except for an uninitialized tick value.  Another loop
could be added with a larger decrement if we need to handle larger
latencies.

I'd hoped that improving the handling of timer interrupts might
fix the behavior of expect, but it doesn't.  If I run the binutils
ld testsuite under load, it usually hangs at the end of the test:

dave     28731 28706  4 14:56 pts/1    00:00:25 expect -- /usr/share/dejagnu/runtest.exp --tool ld --srcdir /home/dave/gnu/binutils-2.16.91/src/ld/testsuite CC=gcc -L/home/dave/gnu/binutils-2.16.91/objdir/./ld CFLAGS=-g -O2 CXX=c++ -L/home/dave/gnu/binutils-2.16.91/objdir/./ld CXXFLAGS=-g -O2 CC_FOR_HOST=gcc CFLAGS_FOR_HOST=-g -O2 OFILES=ldgram.o ldlex.o lexsup.o ldlang.o mri.o ldctor.o ldmain.o ldwrite.o ldexp.o  ldemul.o ldver.o ldmisc.o ldfile.o ldcref.o ehppalinux.o  BFDLIB=../bfd/.libs/libbfd.a LIBIBERTY=../libiberty/libiberty.a  LIBS=
dave     28751 28731  0 14:56 pts/1    00:00:00 [expect] <defunct>

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Sep 04, 2006 at 12:57:25PM -0400, John David Anglin wrote:
> There needs to be a check to ensure that the code has enough time
> to set cr16 with the new compare time before the counter passes this
> value.  If it misses, the counter will wrap.  This probably doesn't
> need to be a full half tick if it's desireable to avoid negative
> offsets.

Yes - I agree. I think this is the last bug in my code.
I'll just "skip" one tick in that case.
My guess is we'll never need more than a 0x1000 cycles
to read CR16, calculate the new "next_tick" and write CR16.

I picked 0x1000 because it very easy to test for: "if (x >> 12)...".

I'll review the your patch and see if I missed anything else
and then post version #4 (or #5?). Lost count.

grant

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On 9/4/06, James Bottomley <James.Bottomley@steeleye.com> wrote:
> Linux is designed so that one interrupt can be interrupted by another
> (but not by itself).  The idea behind this is to help reduce latency.
> Parisc interrupts have never allowed nesting.  We physically disable all
> interrupts in the eiem register before entering interrupt handlers, so
> even if the handler enables interrupts, nothing ever fires.
>
> I won't apply this until we've got the timers sorted out, because it
> will only complicate things (also note that the timer interrupts are
> IRQF_DISABLED, so we're guaranteed not to take any interrupts in them
> until local_irq_enable() is called).

This patch looks great. What boxes have you tested this with? 32-bit? 64-bit?

Cheers,
Carlos.
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On Mon, 2006-09-04 at 22:55 -0400, Carlos O'Donell wrote:
> This patch looks great. What boxes have you tested this with? 32-bit?
> 64-bit?

The only one I currently have access to: a pa8800 (i.e. 64 bit).

There's some testing to do to make sure I haven't disturbed any of the
other bus types, so I'll try it out on my raven when I get that up, but,
unfortunately, the dino block of interrupts, because of the way they're
wired, won't be able to interrupt each other.

James


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On Mon, Sep 04, 2006 at 07:52:51PM -0400, John David Anglin wrote:
> > +	if (likely(now - next_tick < clocktick)) {
> > +		nticks = 1;
> >  		next_tick += clocktick;
> > -		nticks++;
> > +	} else {
> > +		nticks = ((now - next_tick)/clocktick) + 1;
> > +		next_tick += clocktick*nticks;
> > +	}
> 
> I'd rather loop if now - next_tick isn't too many ticks.

Yeah, but we don't know how many times we will loop unless
we've already done the math.

>  Integer division and multiplation are very expensive, particularly when
> running in 64-bit mode.  We don't have optimized millicode to do it.
> So, I don't much like falling into the unlikely case if we are just
> delayed one tick.

How many loops would be a reasonable tradeoff? 5? 10?
We'd need a histogram from a "slow" machine to see that tradeoff.


> I'm still concerned that we may take a TLB exception in this code
> and substantially increase the calculation time.

Hrm...what would cause a TLB exception in timer_interrupt?
Accessing a global var?

> It's somewhat unclear whether any of these tweaks will solve the
> B160 issue.  The halftick margin may not be enough in the slow
> path at 1000 Hz and decreasing the tick rate may be the only fix
> on slow machines.

I'm pretty sure the halftick margin will be plenty.
At 1000Hz, a 50Mhz machine will have 50K cycles per tick.
Even with cache miss for global var (let's say ~300 cycles),
8 cycles for CR16 reads, 300-400 cycles for the math (using div/mul)
we are still under 1K cycles of processing. Say I'm off by a
factor or 2 or 4 and it's still a pretty wide margin.

Instead of a global var access for halftick, would a
hard coded value (e.g. 4k) that's easy to test for be
more efficient?

I'm still thinking of ~0xfffUL or (x>>12).

thanks,
grant
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On Mon, 2006-09-04 at 23:12 -0600, Grant Grundler wrote:
> > I'm still concerned that we may take a TLB exception in this code
> > and substantially increase the calculation time.
> 
> Hrm...what would cause a TLB exception in timer_interrupt?
> Accessing a global var?

A TLB miss could be caused by either code or data ... we only have a few
hundred entries, so the chances of the timer_interrupt code or data
being not in the TLB cache are high.

However, the TLB miss handling code is pretty speedy ... we can
certainly fill a TLB entry in around 20 instructions on the fast path.

James


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On Mon, 2006-09-04 at 15:21 -0600, Grant Grundler wrote:
> \Yes - I agree. I think this is the last bug in my code.
> I'll just "skip" one tick in that case.
> My guess is we'll never need more than a 0x1000 cycles
> to read CR16, calculate the new "next_tick" and write CR16.
> 
> I picked 0x1000 because it very easy to test for: "if (x >> 12)...".
> 
> I'll review the your patch and see if I missed anything else
> and then post version #4 (or #5?). Lost count.

This is the one I'm using that seems most stable (no more > 9 lost
ticks, even on a pa8800).  However, to get it this stable, I do require
nested interrupts.  It also does halftick processing as Grant does, so
it doesn't ever push the time into the future, it just holds off one
tick beyond where we currently are.

James

Index: parisc-2.6/arch/parisc/kernel/time.c
===================================================================
--- parisc-2.6.orig/arch/parisc/kernel/time.c	2006-09-03 21:07:45.000000000 -0700
+++ parisc-2.6/arch/parisc/kernel/time.c	2006-09-04 15:07:33.000000000 -0700
@@ -48,6 +48,7 @@
 	long next_tick;
 	int nticks;
 	int cpu = smp_processor_id();
+	unsigned long cr16_val;
 
 	profile_tick(CPU_PROFILING, regs);
 
@@ -63,12 +64,24 @@
 	 * Variables are *signed*.
 	 */
 
-	nticks = 0;
-	while((next_tick - now) < halftick) {
+	/* Don't do expensive mul and div for the likely case */
+	if (likely(now - next_tick < clocktick)) {
+		nticks = 1;
 		next_tick += clocktick;
-		nticks++;
+	} else {
+		nticks = ((now - next_tick)/clocktick) + 1;
+		next_tick += clocktick*nticks;
+	}
+	/* Don't interrupt too much.  If we only have half
+	 * the time to go to the next tick, push it out one
+	 * more tick */
+	cr16_val = next_tick;
+	if (unlikely(next_tick - now < halftick)) {
+		/* don't increment nticks ... the next
+		 * tick will take care of that */
+		cr16_val += clocktick;
 	}
-	mtctl(next_tick, 16);
+	mtctl(cr16_val, 16);
 	cpu_data[cpu].it_value = next_tick;
 
 	while (nticks--) {


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> +	if (likely(now - next_tick < clocktick)) {
> +		nticks = 1;
>  		next_tick += clocktick;
> -		nticks++;
> +	} else {
> +		nticks = ((now - next_tick)/clocktick) + 1;
> +		next_tick += clocktick*nticks;
> +	}

I'd rather loop if now - next_tick isn't too many ticks.  Integer
division and multiplation are very expensive, particularly when
running in 64-bit mode.  We don't have optimized millicode to do it.
So, I don't much like falling into the unlikely case if we are just
delayed one tick.

I'm still concerned that we may take a TLB exception in this code
and substantially increase the calculation time.

It's somewhat unclear whether any of these tweaks will solve the
B160 issue.  The halftick margin may not be enough in the slow
path at 1000 Hz and decreasing the tick rate may be the only fix
on slow machines.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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James Bottomley wrote:
> On Mon, 2006-09-04 at 22:55 -0400, Carlos O'Donell wrote:
> 
>>This patch looks great. What boxes have you tested this with? 32-bit?
>>64-bit?
> 
> 
> The only one I currently have access to: a pa8800 (i.e. 64 bit).
> 
duno if that could help: I tested it on b2k 32bit kernel and c110.
I did noticed build pb nor boot ;-)

Just compare on b2k the time to build the same kernel tree (same config):
without patch:

real    30m43.031s
user    26m17.318s
sys     3m58.584s

with patch:

real    31m14.598s
user    26m9.790s
sys     4m40.426s

imho no significant differences.

Joel

> There's some testing to do to make sure I haven't disturbed any of the
> other bus types, so I'll try it out on my raven when I get that up, but,
> unfortunately, the dino block of interrupts, because of the way they're
> wired, won't be able to interrupt each other.
> 
> James
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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On Tue, Sep 05, 2006 at 10:53:34AM -0500, James Bottomley wrote:
> On Mon, 2006-09-04 at 23:12 -0600, Grant Grundler wrote:
> > > I'm still concerned that we may take a TLB exception in this code
> > > and substantially increase the calculation time.
> > 
> > Hrm...what would cause a TLB exception in timer_interrupt?
> > Accessing a global var?
> 
> A TLB miss could be caused by either code or data ... we only have a few
> hundred entries, so the chances of the timer_interrupt code or data
> being not in the TLB cache are high.

If we only have one TLB entry for kernel text (code), we should
never have a miss because of code accesses. I thought that was
the case but don't know for sure. ISTR some discussion about
use of BTLB (PA1.1) and Large Pages (PA 2.0) hardwired for kernel.

Kernel data would probably benefit too.

> However, the TLB miss handling code is pretty speedy ... we can
> certainly fill a TLB entry in around 20 instructions on the fast path.

Add trap latency (e.g. sync/RFI) and it's still pretty small (not more
than "hundreds" of cycles.  I'm worried about orders of magnitutude
bigger latencies.

thanks,
grant
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On Tue, 2006-09-05 at 16:49 -0600, Grant Grundler wrote:
> If we only have one TLB entry for kernel text (code), we should
> never have a miss because of code accesses. I thought that was
> the case but don't know for sure. ISTR some discussion about
> use of BTLB (PA1.1) and Large Pages (PA 2.0) hardwired for kernel.
> 
> Kernel data would probably benefit too.

Erm ... no, we never actually implemented this.  We still use 4k TLB
entries for the entire kernel and its data.

> Add trap latency (e.g. sync/RFI) and it's still pretty small (not more
> than "hundreds" of cycles.  I'm worried about orders of magnitutude
> bigger latencies.

Right ... it's a source of potential delay, but not a significant one.

James


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> On Tue, Sep 05, 2006 at 10:53:34AM -0500, James Bottomley wrote:
> > On Mon, 2006-09-04 at 23:12 -0600, Grant Grundler wrote:
> > > > I'm still concerned that we may take a TLB exception in this code
> > > > and substantially increase the calculation time.
> > > 
> > > Hrm...what would cause a TLB exception in timer_interrupt?
> > > Accessing a global var?
> > 
> > A TLB miss could be caused by either code or data ... we only have a few
> > hundred entries, so the chances of the timer_interrupt code or data
> > being not in the TLB cache are high.
> 
> If we only have one TLB entry for kernel text (code), we should
> never have a miss because of code accesses. I thought that was
> the case but don't know for sure. ISTR some discussion about
> use of BTLB (PA1.1) and Large Pages (PA 2.0) hardwired for kernel.

Ok, I think we can rule out this as a significant cause for delay
in calculating the time for the next tick.

I brought it up because I think the only way the current code
fails are:

1) We take too long calculating the time for the next tick and
   then have to wait one complete 32-bit counter cycle for the
   next interrupt.  For the D160, we have about 27000 ticks per
   counter cycle.  The loop is four instructions.  We have 80000
   instruction cycles in a half tick.  Thus, we should be able
   to do about 20000 loop iterations in a half tick assuming
   assuming the cpu doesn't mispredict the branch.  Thus, we can't
   quite catch up a complete cycle but the current code can handle
   quite a large interrupt latency.

2) We have a huge interrupt latency and hit the half cycle limit
   present when using signed arithmetic.  The interrupt latency
   may not be real if the timer values are getting clobbered or
   not properly initialized.  Grant, you may have already fixed
   the problem with your recent patches.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> >  Integer division and multiplation are very expensive, particularly when
> > running in 64-bit mode.  We don't have optimized millicode to do it.
> > So, I don't much like falling into the unlikely case if we are just
> > delayed one tick.
> 
> How many loops would be a reasonable tradeoff? 5? 10?
> We'd need a histogram from a "slow" machine to see that tradeoff.

The decision to loop versus division/multiplication can be made
based on the average number of cycles needed for the former versus
the latter.  If now - next_tick is less than nticks, then loop.
I'm sure the average number of cycles for division/multiplication
depends on whether the code is 32 bits or 64 bits.  Take a look
at __divdi3 if you want to see how horrible integer division is.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] [PATCH] timer_interrupt #5
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Xref: news.gmane.org gmane.linux.ports.parisc:23985

On Fri, Sep 01, 2006 at 04:48:25PM -0600, Grant Grundler wrote:
> version #3: seems to be working fine on 64-bit SMP.
> 32-bit UP kernel is still under construction.

I didn't bother posting version #4.
Here is version #5 (against current parisc git tree):

o makes all vars in timer_interrupt and gettimeoffset unsigned longs
o make a local var to store clocktick - gcc can optimize local vars
o completely remove halftick
o completely remove ticks_elapsed _and_ the loop that depended on it.
  (James observed that x86 doesn't have such a loop...all the risc
   arches seemed to have fallen behind on that.) 
o skips a tick if we can't safely program CR16 for that tick
o Avoids div/mul math in nearly all cases. If timer_interrupt()
  misses more than 32 ticks, division will be used in the
  one modulo operation.

I'd like to commit this by this friday (or sooner) if other folks
have no objection.

thanks,
grant

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index e595b93..e61d603 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -35,8 +35,7 @@ #include <linux/timex.h>
 /* xtime and wall_jiffies keep wall-clock time */
 extern unsigned long wall_jiffies;
 
-static long clocktick __read_mostly;	/* timer cycles per tick */
-static long halftick __read_mostly;
+static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
 
 #ifdef CONFIG_SMP
 extern void smp_do_timer(struct pt_regs *regs);
@@ -44,46 +43,106 @@ #endif
 
 irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
-	long now;
-	long next_tick;
-	int nticks;
-	int cpu = smp_processor_id();
+	unsigned long now;
+	unsigned long next_tick;
+	unsigned long cycles_elapsed;
+	unsigned long cycles_remainder;
+	unsigned int cpu = smp_processor_id();
+
+	/* gcc can optimize for "read-only" case with a local clocktick */
+	unsigned long cpt = clocktick;
 
 	profile_tick(CPU_PROFILING, regs);
 
-	now = mfctl(16);
-	/* initialize next_tick to time at last clocktick */
+	/* Initialize next_tick to the expected tick time. */
 	next_tick = cpu_data[cpu].it_value;
 
-	/* since time passes between the interrupt and the mfctl()
-	 * above, it is never true that last_tick + clocktick == now.  If we
-	 * never miss a clocktick, we could set next_tick = last_tick + clocktick
-	 * but maybe we'll miss ticks, hence the loop.
-	 *
-	 * Variables are *signed*.
+	/* Get current interval timer.
+	 * CR16 reads as 64 bits in CPU wide mode.
+	 * CR16 reads as 32 bits in CPU narrow mode.
 	 */
+	now = mfctl(16);
+
+	cycles_elapsed = now - next_tick;
+
+	if ((cycles_elapsed >> 5) < cpt) {
+		/* use "cheap" math (add/subtract) instead
+		 * of the more expensive div/mul method
+		 */
+		cycles_remainder = cycles_elapsed;
+		while (cycles_remainder > cpt) {
+			cycles_remainder -= cpt;
+		}
+	} else {
+		cycles_remainder = cycles_elapsed % cpt;
+	}
 
-	nticks = 0;
-	while((next_tick - now) < halftick) {
-		next_tick += clocktick;
-		nticks++;
+	/* Can we differentiate between "early CR16" (aka Scenario 1) and
+	 * "long delay" (aka Scenario 3)? I don't think so.
+	 *
+	 * We expected timer_interrupt to be delivered at least a few hundred
+	 * cycles after the IT fires. But it's arbitrary how much time passes
+	 * before we call it "late". I've picked one second.
+	 */
+/* aproximate HZ with shifts. Intended math is "(elapsed/clocktick) > HZ" */
+#if (HZ = 1000)
+	if (cycles_elapsed > (cpt << 10) )
+#elif (HZ = 250)
+	if (cycles_elapsed > (cpt << 8) )
+#elif (HZ = 100)
+	if (cycles_elapsed > (cpt << 7) )
+#elif
+#warn WTF is HZ set to anyway?
+	if (cycles_elapsed > (HZ * cpt) )
+#endif
+	{
+		/* Scenario 3: very long delay?  bad in any case */
+		printk (KERN_CRIT "timer_interrupt(CPU %d): delayed!"
+			" cycles %lX rem %lX "
+			" next/now %lX/%lX\n",
+			cpu,
+			cycles_elapsed, cycles_remainder,
+			next_tick, now );
 	}
-	mtctl(next_tick, 16);
+
+	/* convert from "division remainder" to "remainder of clock tick" */
+	cycles_remainder = cpt - cycles_remainder;
+
+	/* Determine when (in CR16 cycles) next IT interrupt will fire.
+	 * We want IT to fire modulo clocktick even if we miss/skip some.
+	 * But those interrupts don't in fact get delivered that regularly.
+	 */
+	next_tick = now + cycles_remainder;
+
 	cpu_data[cpu].it_value = next_tick;
 
-	while (nticks--) {
+	/* Skip one clocktick on purpose if we are likely to miss next_tick.
+	 * We want to avoid the new next_tick being less than CR16.
+	 * If that happened, itimer wouldn't fire until CR16 wrapped.
+	 * We'll catch the tick we missed on the tick after that.
+	 */
+	if (!(cycles_remainder >> 13))
+		next_tick += cpt;
+
+	/* Program the IT when to deliver the next interrupt. */
+        /* Only bottom 32-bits of next_tick are written to cr16.  */
+	mtctl(next_tick, 16);
+
+
+	/* Done mucking with unreliable delivery of interrupts.
+	 * Go do system house keeping.
+	 */
 #ifdef CONFIG_SMP
-		smp_do_timer(regs);
+	smp_do_timer(regs);
 #else
-		update_process_times(user_mode(regs));
+	update_process_times(user_mode(regs));
 #endif
-		if (cpu == 0) {
-			write_seqlock(&xtime_lock);
-			do_timer(regs);
-			write_sequnlock(&xtime_lock);
-		}
+	if (cpu == 0) {
+		write_seqlock(&xtime_lock);
+		do_timer(regs);
+		write_sequnlock(&xtime_lock);
 	}
-    
+
 	/* check soft power switch status */
 	if (cpu == 0 && !atomic_read(&power_tasklet.count))
 		tasklet_schedule(&power_tasklet);
@@ -109,14 +168,12 @@ #endif
 EXPORT_SYMBOL(profile_pc);
 
 
-/*** converted from ia64 ***/
 /*
  * Return the number of micro-seconds that elapsed since the last
  * update to wall time (aka xtime aka wall_jiffies).  The xtime_lock
  * must be at least read-locked when calling this routine.
  */
-static inline unsigned long
-gettimeoffset (void)
+static inline unsigned long gettimeoffset (void)
 {
 #ifndef CONFIG_SMP
 	/*
@@ -124,21 +181,47 @@ #ifndef CONFIG_SMP
 	 *    Once parisc-linux learns the cr16 difference between processors,
 	 *    this could be made to work.
 	 */
-	long last_tick;
-	long elapsed_cycles;
+	unsigned long now;
+	unsigned long prev_tick;
+	unsigned long next_tick;
+	unsigned long elapsed_cycles;
+	unsigned long usec;
+	unsigned long cpuid = smp_processor_id();
+	unsigned long cpt = clocktick;
+
+	next_tick = cpu_data[cpuid].it_value;
+	now = mfctl(16);	/* Read the hardware interval timer.  */
+
+	prev_tick = next_tick - cpt;
+
+	/* Assume Scenario 1: "now" is later than prev_tick.  */
+	elapsed_cycles = now - prev_tick;
+
+/* aproximate HZ with shifts. Intended math is "(elapsed/clocktick) > HZ" */
+#if (HZ = 1000)
+	if (elapsed_cycles > (cpt << 10) )
+#elif (HZ = 250)
+	if (elapsed_cycles > (cpt << 8) )
+#elif (HZ = 100)
+	if (elapsed_cycles > (cpt << 7) )
+#elif
+#warn WTF is HZ set to anyway?
+	if (elapsed_cycles > (HZ * cpt) )
+#endif
+	{
+		/* Scenario 3: clock ticks are missing. */
+		printk (KERN_CRIT "gettimeoffset(CPU %ld): missing %ld ticks!"
+			" cycles %lX prev/now/next %lX/%lX/%lX  clock %lX\n",
+			cpuid, elapsed_cycles / cpt,
+			elapsed_cycles, prev_tick, now, next_tick, cpt);
+	}
 
-	/* it_value is the intended time of the next tick */
-	last_tick = cpu_data[smp_processor_id()].it_value;
+	/* FIXME: Can we improve the precision? Not with PAGE0. */
+	usec = (elapsed_cycles * 10000) / PAGE0->mem_10msec;
 
-	/* Subtract one tick and account for possible difference between
-	 * when we expected the tick and when it actually arrived.
-	 * (aka wall vs real)
-	 */
-	last_tick -= clocktick * (jiffies - wall_jiffies + 1);
-	elapsed_cycles = mfctl(16) - last_tick;
-
-	/* the precision of this math could be improved */
-	return elapsed_cycles / (PAGE0->mem_10msec / 10000);
+	/* add in "lost" jiffies */
+	usec += cpt * (jiffies - wall_jiffies);
+	return usec;
 #else
 	return 0;
 #endif
@@ -149,6 +232,7 @@ do_gettimeofday (struct timeval *tv)
 {
 	unsigned long flags, seq, usec, sec;
 
+	/* Hold xtime_lock and adjust timeval.  */
 	do {
 		seq = read_seqbegin_irqsave(&xtime_lock, flags);
 		usec = gettimeoffset();
@@ -156,25 +240,13 @@ do_gettimeofday (struct timeval *tv)
 		usec += (xtime.tv_nsec / 1000);
 	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
 
-	if (unlikely(usec > LONG_MAX)) {
-		/* This can happen if the gettimeoffset adjustment is
-		 * negative and xtime.tv_nsec is smaller than the
-		 * adjustment */
-		printk(KERN_ERR "do_gettimeofday() spurious xtime.tv_nsec of %ld\n", usec);
-		usec += USEC_PER_SEC;
-		--sec;
-		/* This should never happen, it means the negative
-		 * time adjustment was more than a second, so there's
-		 * something seriously wrong */
-		BUG_ON(usec > LONG_MAX);
-	}
-

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Subject: Re: [parisc-linux] [PATCH] timer_interrupt and gettimeoffset.
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> May I ask you which expect (and tcl) release did you use?

I use my own compiled version of expect built against tcl 8.3:

Expect version is       5.43.0
Tcl version is          8.3
Framework version is    1.4.4

I've had fewer issues with tcl 8.3.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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Subject: [parisc-linux] NPTL: The Bad News.
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The bad news is that I didn't work much on my thesis this long weekend.
The good news is that I fixed many serious flaws related to:

1. Stack direction, stack guards, and stack permissions.
2. Low level locking primitives returning the wrong values.
3. EAGAIN != EWOULDBLOCK snafu's
4. Compiler bugs.
5. Makefile bugs.

My current set of libc + tls + nptl failures is now down to:

make[2]: *** [libc-tls-nptl/math/test-float.out] Error 1
make[2]: *** [libc-tls-nptl/math/test-double.out] Error 1
make[2]: *** [libc-tls-nptl/math/test-ifloat.out] Error 1
make[2]: *** [libc-tls-nptl/math/test-idouble.o] Error 1
make[1]: *** [math/tests] Error 2

- These are cool.

make[2]: [libc-tls-nptl/posix/annexc.out] Error 1 (ignored)
make[2]: *** [libc-tls-nptl/nptl/tst-cond16.out] Error 1
make[2]: *** [libc-tls-nptl/nptl/tst-cond17.out] Error 1
make[2]: *** [libc-tls-nptl/nptl/tst-robustpi8.out] Error 1
make[2]: *** [libc-tls-nptl/nptl/tst-align2.out] Error 1
make[2]: *** [libc-tls-nptl/nptl/tst-cancel24] Error 1
make[2]: *** [libc-tls-nptl/nptl/tst-oddstacklimit.out] Error 139
make[2]: *** [libc-tls-nptl/nptl/tst-getpid1.out] Error 1
make[2]: *** [libc-tls-nptl/nptl/tst-getpid2.out] Error 1
make[2]: *** [libc-tls-nptl/nptl/tst-cancelx4.out] Error 1
make[2]: *** [libc-tls-nptl/nptl/tst-cancelx5.out] Error 1
make[2]: *** [libc-tls-nptl/nptl/tst-cancelx20.out] Error 1
make[2]: *** [libc-tls-nptl/nptl/tst-cancelx21.out] Error 1
make[2]: *** [libc-tls-nptl/nptl/tst-cleanupx4.out] Error 1
make[2]: *** [libc-tls-nptl/nptl/tst-fini1.out] Error 42
make[1]: *** [nptl/tests] Error 2

- These are not cool.

make[2]: *** [libc-tls-nptl/rt/tst-timer.out] Error 139
make[2]: *** [libc-tls-nptl/rt/tst-mqueue3.out] Error 1
make[2]: *** [libc-tls-nptl/rt/tst-timer4.out] Error 1
make[2]: *** [libc-tls-nptl/rt/tst-timer5.out] Error 1
make[2]: *** [libc-tls-nptl/rt/tst-cputimer1.out] Error 1
make[2]: *** [libc-tls-nptl/rt/tst-cputimer2.out] Error 1
make[2]: *** [libc-tls-nptl/rt/tst-cputimer3.out] Error 1
make[1]: *** [rt/tests] Error 2

- Who needs timers...

make[2]: *** [libc-tls-nptl/elf/tst-pie1.out] Error 139
make[2]: *** [libc-tls-nptl/elf/tst-leaks1-mem] Error 1
make[2]: *** [libc-tls-nptl/elf/order.out] Error 1
make[2]: *** [libc-tls-nptl/elf/nodelete2.out] Error 1
make[2]: *** [libc-tls-nptl/elf/tst-align2.out] Error 1
make[2]: *** [libc-tls-nptl/elf/order2.out] Error 1
make[2]: *** [libc-tls-nptl/elf/tst-audit2.out] Error 139
make[2]: *** [libc-tls-nptl/elf/tst-addr1.out] Error 1
make[2]: *** [libc-tls-nptl/elf/check-textrel.out] Error 1
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

- These elf ones are all bad news, and for a fact I know I will have
to track down DSO initializer and finalizer bugs.

Huzah.

Cheers,
Carlos.
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From: Jeff Bailey <jbailey@raspberryginger.com>
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Subject: Re: [parisc-linux] NPTL: The Bad News.
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On Wed, Sep 06, 2006 at 08:23:18PM -0400, Carlos O'Donell wrote:
> The bad news is that I didn't work much on my thesis this long weekend.
> The good news is that I fixed many serious flaws related to:
> 
> 1. Stack direction, stack guards, and stack permissions.
> 2. Low level locking primitives returning the wrong values.
> 3. EAGAIN != EWOULDBLOCK snafu's
> 4. Compiler bugs.
> 5. Makefile bugs.
> 
> My current set of libc + tls + nptl failures is now down to:

Nice!  I don't see these in CVS yet.  Is there a branch or something
you're working on?

> make[2]: [libc-tls-nptl/posix/annexc.out] Error 1 (ignored)

Why is this under the "not cool" set?  This is there for every arch.

> make[2]: *** [libc-tls-nptl/elf/tst-audit2.out] Error 139

Aside from the segfault, is the audit interface even written?

Tks,
Jeff Bailey

-- 
I do not agree with a word you say, but I will defend to the death your
right to say it. 
 - Voltaire
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at least no more bus errors; that started after the backport of
classpath-0.92 and gcj-4.2 to the 4.1 branch; I built a current 4.2
compiler yesterday, but found the same behaviour on the trunk.  It's
reproducible by installing gij-4.2 (or by running gcj-dbtool-4.2).
The packages currently are in the NEW queue and should show up in
experimental.  In the meantime you can get them from

  deb http://people.debian.org/~doko/gcc-4.2/ ./

The libgcj8-dbg does have the detached debugging symbols.

  Matthias
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] gij/gcj-dbtool segfaults
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> at least no more bus errors; that started after the backport of
> classpath-0.92 and gcj-4.2 to the 4.1 branch; I built a current 4.2
> compiler yesterday, but found the same behaviour on the trunk.  It's
> reproducible by installing gij-4.2 (or by running gcj-dbtool-4.2).

FWIW, this isn't happening in my builds on either linux or hpux.  I
did have this problem a couple of months ago in porting to hpux but
the problem went away after HP fixed a linker bug.  Make sure the
shared libraries being used by gcj-dbtool are exactly as expected.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Jeff Bailey <jbailey@raspberryginger.com>
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Subject: Re: [parisc-linux] NPTL: The Bad News.
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On Thu, Sep 07, 2006 at 01:09:34PM -0400, Carlos O'Donell wrote:

> I didn't check it into CVS last night, but it is all there now.

When updating my tree, I noticed that this is still outstanding:
http://sourceware.org/ml/libc-ports/2006-07/msg00009.html

Without this one, glibc doesn't build with recent kernel headers.

Tks,
Jeff Bailey
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On Fri, Sep 08, 2006 at 03:14:32PM +0000, Joel Soete wrote:
> Cool
> (I tested with success the GM loop on my c110 (kernel up 32bit) and it 
> seems to works fine)

Excellent - thanks.

For the record, I 've been testing those patches on C3000 (no problems)
B2600 (HPMC in tulip_get_stats() from LED/LCD task), and A500 (no problems).
The C3000 (32-bit UP) and A500 (64-bit SMP) ran "make -j4" several days
in a loop with no problems or console output.

> right nothing related:
> I just did a tar/untar and already get:
> EXT3-fs error (device md2): ext3_readdir: bad entry in directory4Remounting 
> filesystem read-only

It would be best if you (re)started a new thread about this problem.
When I hit "^D" in the near future to clean up my inbox, this thread
will only exist (from my point of view) in the archives.

hth,
grant
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On Fri September 8 2006 10:31, Joel Soete wrote:
> Hello James, Matthrew,
>=20
> I come back to you with this pb because as explained in a previous mail:=
=20
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/0301=
52.html>
>=20
> , it seems to be related to ncr53c720 driver.
>=20

That's the second hit on that driver this week:
http://lists.parisc-linux.org/pipermail/parisc-linux/2006-August/030054.html

In the above mail, the driver was reporting:

ncr53c720-0: rev 0xf irq 66
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3g

=A0 =A0Vendor: SEAGATE =A0 Model: ST15150W =A0 =A0 =A0 =A0 =A0Rev: HP07
=A0 =A0Type: =A0 Direct-Access =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0A=
NSI SCSI revision: 02

Where the model number was single-ended, not: ST15150WD (Differential)
and the problem was that the drive could not be written.

Joel, what does that part of your dmesg have to say?
Do the messages match what you have installed?

Dave pointed out that some drives firmware does not report
the correct model number - making this a non-problem.

Mike
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Subject: Re: [parisc-linux] w-a to what [Was: D380 and ext[23] fs grave pb]
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On Tue September 12 2006 08:29, Joel wrote:
> Hello Mike,
> 
> Apologies for so late answer but it seems that I never recieved this 
> mail so I am trying to compose a new one from m-l (sorry to breack the 
> thread so sadely):
> 
>  >On Fri September 8 2006 10:31, Joel Soete wrote:
>  >> Hello James, Matthrew,
>  >>
>  >> I come back to you with this pb because as explained in a previous 
> mail:
>  >> 
>  ><http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030152.html>
>  >>
>  >> , it seems to be related to ncr53c720 driver.
>  >>
>  >
>  >That's the second hit on that driver this week:
>  >http://lists.parisc-linux.org/pipermail/parisc-linux/2006-August/030054.html
>  >
>  >In the above mail, the driver was reporting:
>  >
>  >ncr53c720-0: rev 0xf irq 66
>  >ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
>  >scsi0 : ncr53c8xx-3.4.3g
>  >
>  >   Vendor: SEAGATE   Model: ST15150W          Rev: HP07
>  >   Type:   Direct-Access                      ANSI SCSI revision: 02
>  >
>  >Where the model number was single-ended, not: ST15150WD (Differential)
>  >and the problem was that the drive could not be written.
>  >
>  >Joel, what does that part of your dmesg have to say?
> That said on my C110 I got:
> --- snip ---
> ncr53c720-0: rev 0xf irq 66
>

I could not find any code that identifies the actual chip, the "ncr53c720"
seems to be hardcoded in the message.

> ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
>

This message is part of the strange SE/DIFF code.

> scsi0 : ncr53c8xx-3.4.3g
>    Vendor: SEAGATE   Model: ST34371W          Rev: HP03
>    Type:   Direct-Access                      ANSI SCSI revision: 02
>

And even though this is a different model drive than Joe's problem,
it is still claiming to be SE:
<http://www.seagate.com/support/disc/scsi/st34371w.html>

Hmm... I forgot to check if the string is long enough for 9 characters,
perhaps just the "D" is getting clipped in the message.

>   target0:0:5: Beginning Domain Validation
>   target0:0:5: asynchronous
>   target0:0:5: wide asynchronous
>   target0:0:5: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
>

And that is just wrong - the drive is a SCSI-3 (Ultra SCSI) (Fast-20)
but this drive can fall back to FAST-10, which may be what is happening.

Hmm... Maybe Joe's drives can't fall back to match the controller.

See page 15 of:
<http://www.seagate.com/support/disc/manuals/scsi/67491d.pdf>

Just more reasons to /dev/null this driver.

Mike
 
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Subject: [parisc-linux] [RFC]: rename ncr53c8xx to 53c720? [Was: D380 and
 ext[23] fs grave pb]
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Xref: news.gmane.org gmane.linux.ports.parisc:23995

Hello Matthew,

May be now that parisc-linux tree is managed with git and that driver is 
in fact only for ncr 53c720 hba, isn't it time to rename those stuff 
like ncr53c8xx to 53c720?

Awaitng a better fix, may I also suggest this small change:
--- drivers/scsi/ncr53c8xx.c.Orig       2006-09-11 11:26:36.000000000 +0200
+++ drivers/scsi/ncr53c8xx.c    2006-09-12 12:40:01.000000000 +0200
@@ -8362,7 +8362,12 @@
         tpnt->this_id           = 7;
         tpnt->sg_tablesize      = SCSI_NCR_SG_TABLESIZE;
         tpnt->cmd_per_lun       = SCSI_NCR_CMD_PER_LUN;
+#if defined(__hppa__)
+       /* FIXME: ENABLE_CLUSTERING cause ext fs corruptions */
+       tpnt->use_clustering    = DISABLE_CLUSTERING;
+#else
         tpnt->use_clustering    = ENABLE_CLUSTERING;
+#endif

         if (device->differential)
                 driver_setup.diff_support = device->differential;
=== <> ===

TIA for help,
	Joel


Joel Soete wrote:
> Hello James, Matthrew,
> 
> I come back to you with this pb because as explained in a previous mail: 
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030152.html> 
> 
> 
> , it seems to be related to ncr53c720 driver.
> 
> As I encountered same kind of pb on my c110:
> a few time after the reboot, I just did a tar/untar and already get:
> EXT3-fs error (device md2): ext3_readdir: bad entry in 
> directory4Remounting filesystem read-only
> 
> That said, it seems that I find a work around: I just reverted this
> <http://cvs.parisc-linux.org/linux-2.6/drivers/scsi/ncr53c8xx.c?r1=1.18&r2=1.19&makepatch=1&diff_format=h> 
> 
> ===================================================================
> RCS file: /var/lib/cvs/linux-2.6/drivers/scsi/ncr53c8xx.c,v
> retrieving revision 1.18
> retrieving revision 1.19
> diff -u -r1.18 -r1.19
> --- linux-2.6/drivers/scsi/ncr53c8xx.c    2004/07/20 22:06:43    1.18
> +++ linux-2.6/drivers/scsi/ncr53c8xx.c    2004/07/27 21:19:51    1.19
> @@ -8633,7 +8633,7 @@
>       tpnt->this_id        = 7;
>       tpnt->sg_tablesize    = SCSI_NCR_SG_TABLESIZE;
>       tpnt->cmd_per_lun    = SCSI_NCR_CMD_PER_LUN;
> -    tpnt->use_clustering    = DISABLE_CLUSTERING;
> +    tpnt->use_clustering    = ENABLE_CLUSTERING;
> 
>       if (device->differential)
>           driver_setup.diff_support = device->differential;
> === <> ===
> 
> And a loop like:
> # while true; do nice -n -5 tar -xslpf linux-2.6.12-rc1-pa1.tar ; nice 
> -n -5 rm -rf linux-2.6.12-rc1-pa 1-050319; date; done
> 
> was already running at least 85 time without any pb on this same c110 
> (same kernel 2.6.18-rc6-pa1 + jejb's patch + your
> timer_interrupt patch).
> 
> As you're scsi driver expert and also symbios/ncr one, may be have you 
> an idea where ncr stuff could be broken by enabling 'clustering'?
> 
> TIA,
>     Joel
> 
> Joel Soete wrote:
>  > Hello *pa,
>  >
>  > Making some stress test to atempt to identify some smp pb on my d380, 
> I figure
>  > out this ext[23] relatively grave pb. Effectively during this test loop:
>  > # while true ; do nice -n -3 tar -xspf linux-2.6.11-rc3-pa3.tar ; 
> nice -n -3 rm
>  > -rf linux-2.6.11-rc3-pa3 ; date ; done
>  >
>  > after about 30 iteration, I got a fs' corruption:
>  > EXT3-fs error (device sda10): ext3_readdir: bad entry in directory 
> #84801:
>  > rec_len % 4 != 0 - offset=0, inode=175234
>  > Aborting journal on device sda10.
>  >
>  > ext3_abort called.
>  >
>  > EXT3-fs error (device sda10): ext3_journal_start_sb: Detected aborted 
> journal
>  >
>  > Remounting filesystem read-only
>  >
>  > EXT3-fs error (device sda10): ext3_readdir: bad entry in directory 
> #84801:
>  > rec_len % 4 != 0 - offset=0, inode=1752397164, rec_len=24
>  > EXT3-fs error (device sda10): ext3_readdir: bad entry in directory 
> #84801:
>  > rec_len % 4 != 0 - offset=0, inode=1752397164, rec_len=24
>  > [snip]
>  >
>  > and during fsck I noticed:
>  > __journal_remove_journal_head: freeing b_committed_data
>  >
>  > Pass 2: Checking directory structure
>  > Directory inode 84801, block 0, offset 0: directory corrupted
>  > Salvage? yes
>  >
>  > Missing '.' in directory inode 84801.
>  > Fix? yes
>  >
>  > Setting filetype for entry '.' in ??? (84801) to 2.
>  > Missing '..' in directory inode 84801.
>  > Fix? yes
>  >
>  > [snip]
>  >
>  > As the first time it was with a smp kernel, I re-test with up kernels 
> only.
>  >
>  > This pb occured with different (up) kernels (2.6.17-rc6, 2.6.14, 
> 2.6.17 and
>  > even with 2.6.8.1) on different fs located on different disk and 
> different
>  > hba, and finaly on the 2 different cpu?
>  >
>  > That said I also get a fs corruption during a simple apt-get 
> dist-upgrade:
>  > (sdb6 being /var)
>  > EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in 
> datazone -
>  > block = 745764206, count = 1
>  > Aborting journal on device sdb6.
>  > ext3_abort called.
>  > EXT3-fs error (device sdb6): ext3_journal_start_sb: Detected aborted 
> journal
>  > Remounting filesystem read-only
>  > EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in 
> datazone -
>  > block = 1869488138, count = 1
>  > EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in 
> datazone -
>  > block = 1953459744, count = 1
>  > [snip]
>  > EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in 
> datazone -
>  > block = 2003788910, count = 1
>  > EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in 
> datazone -
>  > block = 1851878701, count = 1
>  > EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in 
> datazone -
>  > block = 1919248225, count = 1<3>BUG: soft lockup det
>  > ected on CPU#0!
>  > Backtrace:
>  >  [<1013222c>] update_process_times+0x34/0x80
>  >  [<1010748c>] timer_interrupt+0x9c/0x134
>  >  [<10145f44>] handle_IRQ_event+0x5c/0xa4
>  >  [<10146004>] __do_IRQ+0x78/0x18c
>  >  [<10107bc4>] do_cpu_irq_mask+0x6c/0xc8
>  >  [<1010a068>] intr_return+0x0/0xc
>  >
>  >
>  > EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in 
> datazone -
>  > block = 1632635402, count = 1
>  > EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in 
> datazone -
>  > block = 1734437731, count = 1
>  > [snip]
>  > EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in 
> datazone -
>  > block = 1313423904, count = 1
>  > EXT3-fs error (device sdb6): ext3_free_blocks: Freeing blocks not in 
> datazone -
>  > block = 171515972, count = 1
>  > EXT3-fs error (device sdb6) in ext3_reserve_inode_write: Journal has 
> aborted
>  > EXT3-fs error (device sdb6) in ext3_truncate: Journal has aborted
>  > EXT3-fs error (device sdb6) in ext3_reserve_inode_write: Journal has 
> aborted
>  > EXT3-fs error (device sdb6) in ext3_orphan_del: Journal has aborted
>  > EXT3-fs error (device sdb6) in ext3_reserve_inode_write: Journal has 
> aborted
>  > __journal_remove_journal_head: freeing b_committed_data
>  >
>  > It's the only system of this model on which I can reproduce but also 
> I can
>  > test (and as I am not hp, I don't have passwd diagnostic cd to test 
> hw ;-( ),
>  > so it's very hard to me if it's a driver pb (e.g. ncr hba) or a hw pb?
>  >
>  > Any idea, advises are welcome.
>  >
>  > Thanks in advance,
>  >     Joel
>  >
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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From: Joel Soete <soete.joel@scarlet.be>
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Subject: [parisc-linux] some more cpu info?
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Xref: news.gmane.org gmane.linux.ports.parisc:23996

Hello Kyle,

ITSR that JDA sent me some interesting material about cpuinfog which 
would look like:
--- include/asm-parisc/pdc.h.Orig       2006-09-10 21:22:11.000000000 +0200
+++ include/asm-parisc/pdc.h    2006-09-11 12:32:59.000000000 +0200
@@ -346,26 +346,57 @@
  #endif
                 cc_alias: 4,    /* alias boundaries for virtual 
addresses   */
                 cc_block: 4,    /* to determine most efficient stride */
-               cc_line : 3,    /* maximum amount written back as a 
result of store (multiple of 16 bytes) */
+               cc_line : 3,    /* maximum amount written back as a result
+                                  of store (multiple of 16 bytes) */
                 cc_shift: 2,    /* how much to shift cc_block left */
                 cc_wt   : 1,    /* 0 = WT-Dcache, 1 = WB-Dcache */
-               cc_sh   : 2,    /* 0 = separate I/D-cache, else shared 
I/D-cache */
-               cc_cst  : 3,    /* 0 = incoherent D-cache, 1=coherent 
D-cache */
+               cc_sh   : 2,    /* 0 = separate I/D-cache (both FIC and 
FDC),
+                                  1 = shared I/D-cache (only FDC),
+                                  2 = shared I/D-cache (only FIC),
+                                  3 = shared I/D-cache (either FIC or 
FDC) */
+               cc_cst  : 3,    /* 0 = incoherent D-cache,
+                                  1 = coherent D-cache,
+                                  2 - 7 reserved */
                 cc_pad1 : 10,   /* reserved */
                 cc_hv   : 3;    /* hversion dependent */
  };

-struct pdc_tlb_cf {            /* for PDC_CACHE (I/D-TLB's) */
-    unsigned long tc_pad0:12,  /* reserved */
+struct pdc_dtlb_cf {           /* for PDC_CACHE (D-TLB's) */
+    unsigned long
  #ifdef __LP64__
                 tc_padW:32,
  #endif
+               tc_pad0 :12,    /* reserved */
+               tc_sh   : 2,    /* 0 = separate I/D-TLB (both PITLB and 
PDTLB),
+                                  1 = shared I/D-TLB (only PDTLB),
+                                  2 = shared I/D-TLB (only PITLB),
+                                  3 = shared I/D-TLB (either PITLB or 
PDTLB) */
+               tc_hv   : 1,    /* HV */
+               tc_u    : 1,    /* 0 = TLB U-bit not implemented,
+                                  1 = TLB U-bit implemented */
+               tc_cst  : 3,    /* 0 = incoherent D-cache,
+                                  1 = coherent D-cache,
+                                  2 -7 reserved */
+               tc_pad1 :11,    /* reserved */
+               tc_hv1  : 2;    /* HV1 */
+};
+
+struct pdc_itlb_cf {           /* for PDC_CACHE (I-TLB's) */
+    unsigned long
+#ifdef __LP64__
+               tc_padW:32,
+#endif
+               tc_pad0 :12,    /* reserved */
                 tc_sh   : 2,    /* 0 = separate I/D-TLB, else shared 
I/D-TLB */
                 tc_hv   : 1,    /* HV */
-               tc_page : 1,    /* 0 = 2K page-size-machine, 1 = 4k page 
size */
-               tc_cst  : 3,    /* 0 = incoherent operations, else 
coherent operations */
-               tc_aid  : 5,    /* ITLB: width of access ids of 
processor (encoded!) */
-               tc_pad1 : 8;    /* ITLB: width of space-registers 
(encoded) */
+               tc_page : 1,    /* 0 = 2K page-size-machine,
+                                  1 = 4k page size */
+               tc_cst  : 3,    /* 0 = incoherent D-cache,
+                                  1 = coherent D-cache,
+                                  2 -7 reserved */
+               tc_aid  : 5,    /* encoded width of access ids of 
processor */
+               tc_sr   : 6,    /* encoded width of space-registers */
+               tc_hv1  : 2;    /* HV1 */
  };

  struct pdc_cache_info {                /* main-PDC_CACHE-structure 
(caches & TLB's) */
@@ -385,7 +416,7 @@
         unsigned long   dc_loop;
         /* Instruction-TLB */
         unsigned long   it_size;        /* number of entries in I-TLB */
-       struct pdc_tlb_cf it_conf;      /* I-TLB-configuration */
+       struct pdc_itlb_cf it_conf;     /* I-TLB-configuration */
         unsigned long   it_sp_base;
         unsigned long   it_sp_stride;
         unsigned long   it_sp_count;
@@ -395,7 +426,7 @@
         unsigned long   it_loop;
         /* data-TLB */
         unsigned long   dt_size;        /* number of entries in D-TLB */
-       struct pdc_tlb_cf dt_conf;      /* D-TLB-configuration */
+       struct pdc_dtlb_cf dt_conf;     /* D-TLB-configuration */
         unsigned long   dt_sp_base;
         unsigned long   dt_sp_stride;
         unsigned long   dt_sp_count;
--- arch/parisc/kernel/cache.c.Orig     2006-09-11 11:35:10.000000000 +0200
+++ arch/parisc/kernel/cache.c  2006-09-12 12:44:21.000000000 +0200
@@ -104,11 +104,14 @@
                 cache_info.ic_size/1024 );
         if (cache_info.dc_loop == 1)
                 snprintf(buf, 32, "%lu-way associative", 
cache_info.dc_loop);
-       seq_printf(m, "D-cache\t\t: %ld KB (%s%s, %s)\n",
+       seq_printf(m, "D-cache\t\t: %ld KB (stride = %lu, %s/%s%s, %s)\n",
                 cache_info.dc_size/1024,
+               cache_info.dc_stride,
+               (cache_info.dc_conf.cc_cst ? "CO":"NC"),
                 (cache_info.dc_conf.cc_wt ? "WT":"WB"),
                 (cache_info.dc_conf.cc_sh ? ", shared I/D":""),
-               ((cache_info.dc_loop == 1) ? "direct mapped" : buf));
+               ((cache_info.dc_loop == 1) ? "direct mapped" : buf)
+       );
         seq_printf(m, "ITLB entries\t: %ld\n" "DTLB entries\t: %ld%s\n",
                 cache_info.it_size,
                 cache_info.dt_size,
@@ -143,7 +146,7 @@
         if (pdc_cache_info(&cache_info) < 0)
                 panic("parisc_cache_init: pdc_cache_info failed");

-#if 0
+#if 1
         printk("ic_size %lx dc_size %lx it_size %lx\n",
                 cache_info.ic_size,
                 cache_info.dc_size,
@@ -155,13 +158,13 @@
                 cache_info.dc_count,
                 cache_info.dc_loop);

-       printk("dc_conf = 0x%lx  alias %d blk %d line %d shift %d\n",
+       printk("dc_conf = 0x%lx  alias %d blk %d line %d shift %d "
+               "wt %d sh %d cst %d assoc %d\n",
                 *(unsigned long *) (&cache_info.dc_conf),
                 cache_info.dc_conf.cc_alias,
                 cache_info.dc_conf.cc_block,
                 cache_info.dc_conf.cc_line,
-               cache_info.dc_conf.cc_shift);
-       printk("        wt %d sh %d cst %d hv %d\n",
+               cache_info.dc_conf.cc_shift,
                 cache_info.dc_conf.cc_wt,
                 cache_info.dc_conf.cc_sh,
                 cache_info.dc_conf.cc_cst,
@@ -173,31 +176,34 @@
                 cache_info.ic_count,
                 cache_info.ic_loop);

-       printk("ic_conf = 0x%lx  alias %d blk %d line %d shift %d\n",
+       printk("ic_conf = 0x%lx  alias %d blk %d line %d shift %d "
+               "wt %d sh %d cst %d assoc %d\n",
                 *(unsigned long *) (&cache_info.ic_conf),
                 cache_info.ic_conf.cc_alias,
                 cache_info.ic_conf.cc_block,
                 cache_info.ic_conf.cc_line,
-               cache_info.ic_conf.cc_shift);
-       printk("        wt %d sh %d cst %d hv %d\n",
+               cache_info.ic_conf.cc_shift,
                 cache_info.ic_conf.cc_wt,
                 cache_info.ic_conf.cc_sh,
                 cache_info.ic_conf.cc_cst,
                 cache_info.ic_conf.cc_hv);

-       printk("D-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
+       printk("D-TLB conf: sh %d hv %d u %d cst %d pad1 %d hv1 %d\n",
                 cache_info.dt_conf.tc_sh,
-               cache_info.dt_conf.tc_page,
+               cache_info.dt_conf.tc_hv,
+               cache_info.dt_conf.tc_u,
                 cache_info.dt_conf.tc_cst,
-               cache_info.dt_conf.tc_aid,
-               cache_info.dt_conf.tc_pad1);
+               cache_info.dt_conf.tc_pad1,
+               cache_info.dt_conf.tc_hv1);

-       printk("I-TLB conf: sh %d page %d cst %d aid %d pad1 %d \n",
+       printk("I-TLB conf: sh %d hv %d page %d cst %d aid %d sr %d hv1 
%d\n",
                 cache_info.it_conf.tc_sh,
+               cache_info.dt_conf.tc_hv,
                 cache_info.it_conf.tc_page,
                 cache_info.it_conf.tc_cst,
                 cache_info.it_conf.tc_aid,
-               cache_info.it_conf.tc_pad1);
+               cache_info.it_conf.tc_sr,
+               cache_info.it_conf.tc_hv1);
  #endif

         split_tlb = 0;
=== <> ===
(but may be have got something more recent?)

I would just like to add those cache line size info:
--- arch/parisc/kernel/cache.c  2006-09-12 12:44:21.000000000 +0200
+++ arch/parisc/kernel/cache.c.New      2006-09-12 12:43:00.000000000 +0200
@@ -102,6 +102,8 @@

         seq_printf(m, "I-cache\t\t: %ld KB\n",
                 cache_info.ic_size/1024 );
+       seq_printf(m, "I-cache line\t: %d Byte\n",
+               cache_info.ic_conf.cc_line << 4 );
         if (cache_info.dc_loop == 1)
                 snprintf(buf, 32, "%lu-way associative", 
cache_info.dc_loop);
         seq_printf(m, "D-cache\t\t: %ld KB (stride = %lu, %s/%s%s, %s)\n",
@@ -112,6 +114,8 @@
                 (cache_info.dc_conf.cc_sh ? ", shared I/D":""),
                 ((cache_info.dc_loop == 1) ? "direct mapped" : buf)
         );
+       seq_printf(m, "D-cache line\t: %d Byte\n",
+               cache_info.dc_conf.cc_line << 4 );
         seq_printf(m, "ITLB entries\t: %ld\n" "DTLB entries\t: %ld%s\n",
                 cache_info.it_size,
                 cache_info.dt_size,
=== <> ===

Tested on my c110, it reports:
#  cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 1.1c
cpu             : PA7200 (PCX-T')
cpu MHz         : 120.000000
model           : 9000/777/C110
model name      : Raven 120 T'
hversion        : 0x000058e0
sversion        : 0x00000481
I-cache         : 256 KB
I-cache line    : 32 Byte
D-cache         : 258 KB (stride = 32, WBCO, direct mapped)
D-cache line    : 32 Byte
ITLB entries    : 120
DTLB entries    : 120 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (16 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 119.29
software id     : 2011460976

Please fill free to commit if there are some interest ;-)

Tia,
	Joel
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On Tue September 12 2006 07:02, Michael S. Zick wrote:
> On Tue September 12 2006 06:09, Joel Soete wrote:
> > Hello Matthew,
> > 
> > May be now that parisc-linux tree is managed with git and that driver is 
> > in fact only for ncr 53c720 hba, isn't it time to rename those stuff 
> > like ncr53c8xx to 53c720?
> >
> 
> Joel and group,
> 
> I was browsing that code and noticed that it tries to support a half
> dozen different chips.
> 
> That leads into some really strange looking code for the single-ended/
> differential setup.
> 

Oops, sorry, getting old...

Noticed one more thing - the driver allocates kernel memory -

Which raised the question in my mind of:
*) Driver allocates memory
*) Memory request generates swap activity
*) Swap file is on same driver

Can the above sequence happen and deadlock the driver?
The "softlockup detected" in your message listing?

That driver also uses both spinlocks and timers, so
it may be affected by the recent changes.

Mike
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Xref: news.gmane.org gmane.linux.ports.parisc:23998

Application destructor running problems fixed, and checked into libc-ports!

My latest testsuite run shows:

make[2]: *** [/libc-tls-nptl/math/test-float.o] Error 1
make[2]: *** [/libc-tls-nptl/math/test-double.out] Error 1
make[2]: *** [/libc-tls-nptl/math/test-ifloat.out] Error 1
make[2]: *** [/libc-tls-nptl/math/test-idouble.o] Error 1
make[1]: *** [math/tests] Error 2

	- Normal math problems. No worries here.
	- Ignore.

make[2]: [/libc-tls-nptl/posix/annexc.out] Error 1 (ignored)

make[2]: *** [/libc-tls-nptl/nptl/tst-align2.out] Error 1

	- Reason unkonwn. SIGSEGV in child.
	- Bad.

make[2]: *** [/libc-tls-nptl/nptl/tst-cancel24] Error 1

	- libstdc++.so problem with my environment?
	- Ignore.

	/usr/local/tools/bin/../lib/gcc/hppa-linux/4.2.0/../../../libstdc++.so:
undefined reference to `int std::__convert_from_v<long double>(char*,
int, char const*, long double, int* const&, int)'
	/usr/local/tools/bin/../lib/gcc/hppa-linux/4.2.0/../../../libstdc++.so:
undefined reference to `int std::__convert_from_v<double>(char*, int,
char const*, double, int* const&, int)'
	collect2: ld returned 1 exit status

/libc-tls-nptl/nptl/tst-oddstacklimit: error while loading shared
libraries: libpthread.so.0: cannot open shared object file: Error 14
make[2]: *** [/libc-tls-nptl/nptl/tst-oddstacklimit.out] Error 127

	- This test is baloney, setting 'ulimit -s 1023' is not a good test.
	- Standard stack is '8192', or an 8MB stack, not a 1MB stack.
	- The error you see is libpthread.so.0 failing to load because the stack
	  is probably too small, and libc makes alloca calls aswell.
	- Ignore.

make[2]: *** [/libc-tls-nptl/nptl/tst-getpid1.out] Error 1
make[2]: *** [/libc-tls-nptl/nptl/tst-getpid2.out] Error 1

	- Possible breakage in clone. New called function via clone returns
parents PID from
	  call to getpid(). This means clone failed?
	- Bad.

make[2]: *** [/libc-tls-nptl/nptl/tst-cancelx4.out] Error 1
make[2]: *** [/libc-tls-nptl/nptl/tst-cancelx5.out] Error 1
make[2]: *** [/libc-tls-nptl/nptl/tst-cancelx20.out] Error 1
make[2]: *** [/libc-tls-nptl/nptl/tst-cancelx21.out] Error 1
make[2]: *** [/libc-tls-nptl/nptl/tst-cleanupx4.out] Error 1
make[1]: *** [nptl/tests] Error 2

	- All 5 tests are cleanup handler failures.
	- Bad.

make[2]: *** [/libc-tls-nptl/rt/tst-timer.out] Error 139

	- nptl/sysdeps/pthread/tst-timer.c crash in signal handler.
	- Bad.

make[2]: *** [/libc-tls-nptl/rt/tst-mqueue3.out] Error 1

	- mq_open fails?
	- Ignore.

make[2]: *** [/libc-tls-nptl/rt/tst-timer4.out] Error 1
make[2]: *** [/libc-tls-nptl/rt/tst-timer5.out] Error 1
make[2]: *** [/libc-tls-nptl/rt/tst-cputimer1.out] Error 1
make[2]: *** [/libc-tls-nptl/rt/tst-cputimer2.out] Error 1
make[2]: *** [/libc-tls-nptl/rt/tst-cputimer3.out] Error 1

	- Crash when timer fires. Related to tst-timer?
	- Bad.

make[1]: *** [rt/tests] Error 2
make[2]: *** [/libc-tls-nptl/elf/tst-pie1.out] Error 139

	- Probably a toolchain problem with -fPIE.
	- Ignore.

make[2]: *** [/libc-tls-nptl/elf/tst-audit2.out] Error 139

	- dl-trampoline.S enter_plt path done, but exit_plt path has bugs.
	- Ignore until I finish the code.

make[2]: *** [/libc-tls-nptl/elf/tst-addr1.out] Error 1

	- This test doesn't work well with architectures that use OPD's.
	- Without first resolving printf we can't get its address.
	- This test is bogus.
	- Ignore.

make[2]: *** [/libc-tls-nptl/elf/check-textrel.out] Error 1
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

	- We have various security considerations to take into account.
	- For right now we don't care that text relocations are writable.
	- Ignore.

Summary:
	14 - Bad failures.
	11 - Ignored failures.

We are looking production ready ;)
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Subject: Re: [parisc-linux] Good news for d380 but sad news for n4k
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On Wed September 13 2006 15:49, Joel Soete wrote:
> 
> Michael S. Zick wrote:
> > On Wed September 13 2006 13:39, Joel Soete wrote:
> >> Hello all,
> >>
> >> The good point is that k 2.6.18-rc5-pa1 (32bit smp) already run my kernel build loop for 10 days of test without any pb ;-)
> >>

That is progress - the D380 used to be the one that failed first - now
that is around 5 times longer than ever before.

> >> Otoh, the 2.6.18-rc7-pa0 (64bit smp) boot well on n4k but didn't survive 10 minutes (here there are an additional tar/untar 
> >> loop) to stress test.
> >>

This may also be good news - with the general problems taken care of, now
we have something specific to the N4K to locate.

And having it fail in 10 minutes is a lot nicer than failing in 10 days.

> > 
> > Finally, I think we forced the kernel to give us some usable information!
> > 
> > Besides the kernel version and kernel width (32-bit & 64-bit) your earlier
> > posting of the /proc/cpuinfo messages shows the d380 is a 32-byte cache-line
> for c110 yes but for d380 I would like to check (this a p8000 but runing 32bit kernel so?)
>

My bad, it was the c110 with the 32-byte cache-line, I lost track of what was what.

> (specialy usefull to me to learn how to finish the jda stuff)
>

IIRC, Since spinlock_t is a compile-time size, Dave thought that all we could do
was print a warning if the kernel was booted on a machine with a cache-line size
different than what it was compiled for.

To do that requires the cache-line size be put into that pdc data structure;
which is part of the /proc/cpuinfo and dmesg changes.

Since application programs may not have to be compile-time sized, having the
cache-line size in /proc/cpuinfo could be useful for other purposes also.

I seem to recall that Dave passed on those changes to Kyle, but I may be
wrong in my recollection.
 
> > and the n4k is a 64-byte cache-line machine.
> > 
> Curious to read results on pa8800 system (if somebody could take try on such system?)
> 
> > What patches where applied to this kernel?
> > Willy's spinlock changes?
> > The timer changes?
> > The interrupt nesting changes?
> > The /proc/cpuinfo changes?
> > 
> on d180 only "Willy's spinlock changes" (as per pa1)
> on n4k all.
>

Perhaps those changes should get another look for 64-bit problems before
pulling them to locate the one that took the machine down so fast.
 
> Joel
Mike
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Hello James,

as well on c110 as on d380 I always get following pb with this driver for the ncr53c710 chip (scsi narrow s-e external 
connection), after 2 or 3 untar/rm iterations (obviously this is just an easy way to reproduce this pb which hapen more 
frequently in day to day life cycle):

Aug 26 07:37:48 patst007 kernel: scsi3: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
Aug 26 07:37:48 patst007 kernel: scsi3: Bus Reset detected, executing command 1f7c5080, slot 1f6f0778, dsp 000d01e8[01e8]
Aug 26 07:37:48 patst007 kernel:  failing command because of reset, slot 1f6f0520, cmnd 1f5d7a80
Aug 26 07:37:48 patst007 kernel:  failing command because of reset, slot 1f6f064c, cmnd 1f5d7060
Aug 26 07:37:48 patst007 kernel:  failing command because of reset, slot 1f6f0778, cmnd 1f7c5080
Aug 26 07:37:48 patst007 kernel:  failing command because of reset, slot 1f6f08a4, cmnd 1f7c51a0
Aug 26 07:37:50 patst007 kernel: scsi3: (3:0) phase mismatch at 01e8, phase IO BSY DATA_IN
Aug 26 07:37:50 patst007 kernel: scsi3: Bus Reset detected, executing command 1f5d7a80, slot 1f6f08a4, dsp 000d01e8[01e8]
Aug 26 07:37:50 patst007 kernel:  failing command because of reset, slot 1f6f0520, cmnd 1f7c51a0
Aug 26 07:37:50 patst007 kernel:  failing command because of reset, slot 1f6f064c, cmnd 1f7c5080
Aug 26 07:37:50 patst007 kernel:  failing command because of reset, slot 1f6f0778, cmnd 1f5d7060
Aug 26 07:37:50 patst007 kernel:  failing command because of reset, slot 1f6f08a4, cmnd 1f5d7a80
--- snip ---
Aug 26 07:53:51 patst007 kernel: scsi3: (3:0) phase mismatch at 01e8, phase IO BSY DATA_IN
Aug 26 07:53:51 patst007 kernel: scsi3: Bus Reset detected, executing command 1f5d7a80, slot 1f6f08a4, dsp 000d01e8[01e8]
Aug 26 07:53:51 patst007 kernel:  failing command because of reset, slot 1f6f0520, cmnd 1f7c51a0
Aug 26 07:53:51 patst007 kernel:  failing command because of reset, slot 1f6f064c, cmnd 1f7c5080
Aug 26 07:53:51 patst007 kernel:  failing command because of reset, slot 1f6f0778, cmnd 1f5d7060
Aug 26 07:53:51 patst007 kernel:  failing command because of reset, slot 1f6f08a4, cmnd 1f5d7a80

(I grabe it from kernel log to show the timestamp)

Some I had to force the reboot of system, some other it panics with some "ccio_alloc_range() I/O MMU..."
(most probably "I/O MMU is out of mapping resources.")

Any idea why this 'phase mismatch' hapened?

Tia,
	Joel

PS: btw I just start to look in more details code but I don't undertand how this hunk:

#ifdef NCR_700_DEBUG
#define STATIC
#else
#define STATIC static
#endif

would help debuging? (I understand that __inline__ would be remove but static?)

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Subject: [parisc-linux] A smal chg proposal about: [PATCH] [PARISC] Allow
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Xref: news.gmane.org gmane.linux.ports.parisc:24001

Hello James,

Sorry to have read it so lately but I just figure out this:
- we can read in:
include/linux/bitops.h
--- snip ---
static inline unsigned fls_long(unsigned long l)
{
         if (sizeof(l) == 4)
                 return fls(l);
         return fls64(l);
}
--- snip ---

- otoh in your patch you wrote:
+static inline int eirr_to_irq(unsigned long eirr)
+{
+#ifdef CONFIG_64BIT
+       int bit = fls64(eirr);
+#else
+       int bit = fls(eirr);
+#endif
+       return (BITS_PER_LONG - bit) + TIMER_IRQ;
+}
+

so may be could it be simply writen:
	int bit = fls_long(eirr);

Hth,
	Joel

PS: I still have somewhere an optimized version for this stuff I will try to find it back ;-)
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Subject: Re:[parisc-linux] A smal chg proposal about: [PATCH] [PARISC] Allow 
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Xref: news.gmane.org gmane.linux.ports.parisc:24002

> Hello James,
> 
> Sorry to have read it so lately but I just figure out this:
> - we can read in:
> include/linux/bitops.h
> --- snip ---
> static inline unsigned fls_long(unsigned long l)
> {
>          if (sizeof(l) =3D=3D 4)
>                  return fls(l);
>          return fls64(l);
> }
> --- snip ---
> 
> - otoh in your patch you wrote:
> +static inline int eirr_to_irq(unsigned long eirr)
> +{
> +#ifdef CONFIG_64BIT
> +       int bit =3D fls64(eirr);
> +#else
> +       int bit =3D fls(eirr);
> +#endif
> +       return (BITS_PER_LONG - bit) + TIMER_IRQ;
> +}
> +
> 
> so may be could it be simply writen:
> 	int bit =3D fls_long(eirr);
> 
> Hth,
> 	Joel
> 
> PS: I still have somewhere an optimized version for this stuff I will t=
ry to
find it back ;-)

Sorry for delay but I needed some more time to update my system and test =
stuff
on some; so here is my proposal:
--- ./arch/parisc/kernel/irq.c.Orig	2006-09-18 13:41:05.000000000 +0200
+++ ./arch/parisc/kernel/irq.c	2006-09-18 13:41:38.000000000 +0200
@@ -331,11 +331,7 @@
 
 static inline int eirr_to_irq(unsigned long eirr)
 {
-#ifdef CONFIG_64BIT
-	int bit =3D fls64(eirr);
-#else
-	int bit =3D fls(eirr);
-#endif
+	int bit =3D fls_long(eirr);
 	return (BITS_PER_LONG - bit) + TIMER_IRQ;
 }
 
--- ./include/asm-parisc/bitops.h.Orig	2006-09-18 12:10:23.000000000 +020=
0
+++ ./include/asm-parisc/bitops.h	2006-09-18 12:38:06.000000000 +0200
@@ -173,34 +173,43 @@
  * fls(0) =3D 0, fls(1) =3D 1, fls(0x80000000) =3D 32.
  */
 
-static __inline__ int fls(int x)
+#define __HAVE_ARCH_FLS_LONG
+#define fls(x)	fls_long((unsigned long)(x))
+
+static __inline__ int fls_long(unsigned long l)
 {
-	int ret;
-	if (!x)
-		return 0;
+	unsigned long ret;
 
 	__asm__(
-	"	ldi		1,%1\n"
-	"	extru,<>	%0,15,16,%%r0\n"
-	"	zdep,TR		%0,15,16,%0\n"		/* xxxx0000 */
-	"	addi		16,%1,%1\n"
-	"	extru,<>	%0,7,8,%%r0\n"
-	"	zdep,TR		%0,23,24,%0\n"		/* xx000000 */
-	"	addi		8,%1,%1\n"
-	"	extru,<>	%0,3,4,%%r0\n"
-	"	zdep,TR		%0,27,28,%0\n"		/* x0000000 */
-	"	addi		4,%1,%1\n"
-	"	extru,<>	%0,1,2,%%r0\n"
-	"	zdep,TR		%0,29,30,%0\n"		/* y0000000 (y&3 =3D 0) */
-	"	addi		2,%1,%1\n"
-	"	extru,=3D		%0,0,1,%%r0\n"
-	"	addi		1,%1,%1\n"		/* if y & 8, add 1 */
-		: "+r" (x), "=3Dr" (ret) );
-
-	return ret;
+#ifdef __LP64__
+		"ldi		64,%1		\n\t"
+		"extrd,u,*=3D	%0,31,32,%%r0	\n\t"
+		"extrd,u,*TR	%0,31,32,%0	\n\t"	/* move top 32-bits down */
+		"addi		-32,%1,%1	\n\t"
+#else
+		"ldi		32,%1		\n\t"
+#endif
+		"extru,=3D	%0,15,16,%%r0	\n\t"
+		"extru,TR	%0,15,16,%0	\n\t"	/* xxxx0000 -> 0000xxxx */
+		"addi		-16,%1,%1	\n\t"
+		"extru,=3D	%0,23,8,%%r0	\n\t"
+		"extru,TR	%0,23,8,%0	\n\t"	/* 0000xx00 -> 000000xx */
+		"addi		-8,%1,%1	\n\t"
+		"extru,=3D	%0,27,4,%%r0	\n\t"
+		"extru,TR	%0,27,4,%0	\n\t"	/* 000000x0 -> 0000000x */
+	 	"addi		-4,%1,%1	\n\t"
+		"extru,=3D	%0,29,2,%%r0	\n\t"
+		"extru,TR	%0,29,2,%0	\n\t"	/* 0000000y, 1100b -> 0011b */
+		"addi		-2,%1,%1	\n\t"
+		"extru,=3D	%0,30,1,%%r0	\n\t"
+		"extru,TR	%0,30,1,%0	\n\t"	/* 0000000z, 10b -> 01b */
+		"addi		-1,%1,%1	\n\t"
+		"extru,<>	%0,31,1,%%r0	\n\t"	/* check last bit */
+		"addi		-1,%1,%1	\n\t"
+		: "+r" (l), "=3Dr" (ret) );
+	return (int)ret;
 }
 
-#include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
 #include <asm-generic/bitops/sched.h>
 
--- ./include/linux/bitops.h.Orig	2006-09-18 12:35:04.000000000 +0200
+++ ./include/linux/bitops.h	2006-09-18 13:56:14.000000000 +0200
@@ -53,11 +53,13 @@
 	return (word >> shift) | (word << (32 - shift));
 }
 
+#ifndef __HAVE_ARCH_FLS_LONG
 static inline unsigned fls_long(unsigned long l)
 {
 	if (sizeof(l) =3D=3D 4)
 		return fls(l);
 	return fls64(l);
 }
+#endif 
 
 #endif

=3D=3D=3D=3D <> =3D=3D=3D=3D
tested (build and boot fine) on d380 32bit smp, b2k 32 & 64 bit up kernel=

(have encountered unrelated pb to build n4k up kernel?)

Joel=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devene=
z aujourd'hui Scarlet One grace a un client existant de Scarlet, vous rec=
evez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur ht=
tp://www.clubscarlet.be

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Subject: [parisc-linux] Re:w-a to what [Was: D380 and ext[23] fs grave pb]
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Xref: news.gmane.org gmane.linux.ports.parisc:24003

> Hello James, Matthrew,
> 
Just small update ;-)

> I come back to you with this pb because as explained in a previous mail=
: 
>
<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/0301=
52.html>
> 
> , it seems to be related to ncr53c720 driver.
> 
> As I encountered same kind of pb on my c110:
> a few time after the reboot, I just did a tar/untar and already get:
> EXT3-fs error (device md2): ext3_readdir: bad entry in directory4Remoun=
ting
filesystem read-only
> 
> That said, it seems that I find a work around: I just reverted this
>
<http://cvs.parisc-linux.org/linux-2.6/drivers/scsi/ncr53c8xx.c?r1=3D1.18=
&r2=3D1.19&makepatch=3D1&diff_format=3Dh>
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> RCS file: /var/lib/cvs/linux-2.6/drivers/scsi/ncr53c8xx.c,v
> retrieving revision 1.18
> retrieving revision 1.19
> diff -u -r1.18 -r1.19
> --- linux-2.6/drivers/scsi/ncr53c8xx.c	2004/07/20 22:06:43	1.18
> +++ linux-2.6/drivers/scsi/ncr53c8xx.c	2004/07/27 21:19:51	1.19
> @@ -8633,7 +8633,7 @@
>    	tpnt->this_id		=3D 7;
>    	tpnt->sg_tablesize	=3D SCSI_NCR_SG_TABLESIZE;
>    	tpnt->cmd_per_lun	=3D SCSI_NCR_CMD_PER_LUN;
> -	tpnt->use_clustering	=3D DISABLE_CLUSTERING;
> +	tpnt->use_clustering	=3D ENABLE_CLUSTERING;
> 
>    	if (device->differential)
>    		driver_setup.diff_support =3D device->differential;
> =3D=3D=3D <> =3D=3D=3D
> 
> And a loop like:
> # while true; do nice -n -5 tar -xslpf linux-2.6.12-rc1-pa1.tar ; nice =
-n -5
rm -rf linux-2.6.12-rc1-pa 1-050319; date; done
> 
> was already running at least 85 time without any pb on this same c110 (=
same
kernel 2.6.18-rc6-pa1 + jejb's patch + your
> timer_interrupt patch).
> 
A longuer test on d380 (2.6.18-rc7-pa1 32bit up kernel) failed after only=
 some
loop with message:
EXT3-fs error (device sda10): ext3_readdir: bad entry in directory #14607=
0:
rec_len % 4 !=3D 0 - offset=3D0, inode=3D17645
Aborting journal on device sda10.                                        =
    
                                                      
ext3_abort called.                                                       =
    
                                                      
EXT3-fs error (device sda10): ext3_journal_start_sb: Detected aborted jou=
rnal
                                                      
Remounting filesystem read-only

Too bad ;-(

Thanks,
    Joel

=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devenez au=
jourd'hui Scarlet One grace a un client existant de Scarlet, vous recevez=
 tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur http:/=
/www.clubscarlet.be

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> On Fri, 2006-09-15 at 11:10 +0000, Joel Soete wrote:
> > Aug 26 07:37:48 patst007 kernel: scsi3: (3:0) phase mismatch at 01e8,=

> > phase IO CD MSG BSY REQ MSG IN
> 
> 1e8 is 	at
> 
> MOVE	CommandCount, CommandAddress, WHEN CMD
> 
> What this means is that the device transitioned away from the command
> phase while the host still had bytes to send.  i.e. the host and device=

> disagree on how long some command should be.  Thus, either the device i=
s
> buggy, or someone sent a command via sg with an incorrect length.
> 
Thanks.

Btw I grab the disk with its scsi terminator and scsi cable to connect it=
 on a
b180 (using also scsi1: 53c710 rev 2) and ran the test loop for now more =
then
17h without any kind of pb ;-)

May I supposed that there is no hw with scsi disk.

That said the kernel used the same drivers for the same kind of hba, and =
afaik
the big diff between this b180 and other c110/d380 is the ccio runaway bu=
s
ctrlr. May I so reasonably thougt that the pb came from the ccio-dma driv=
er?
But where should it be located?

Thanks again,
    Joel

> James
> 
> 
> =0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devenez =
aujourd'hui Scarlet One grace a un client existant de Scarlet, vous recev=
ez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur http=
://www.clubscarlet.be

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On Thursday 21 September 2006 13:42, Matthew Wilcox wrote:
> $ grep undefined make.err 
> WARNING: "flush_data_cache" [drivers/video/console/sticore.ko] undefined!
> WARNING: "sti_set" [drivers/video/console/sticon.ko] undefined!
> WARNING: "sti_putc" [drivers/video/console/sticon.ko] undefined!
> WARNING: "sti_bmove" [drivers/video/console/sticon.ko] undefined!
> WARNING: "sti_clear" [drivers/video/console/sticon.ko] undefined!
> WARNING: "dummy_con" [drivers/video/console/sticon.ko] undefined!
> WARNING: "conswitchp" [drivers/video/console/sticon.ko] undefined!
> 
> I suspect the flush_data_cache() is a relic from the olden days -- I
> think the flush_icache_range() call should be sufficient.

Yes. flush_kernel_dcache_range() may need to stay as well.

> STI scares me.  

Why ?

> I don't understand why we need the dummy console.  

AFAIK, we need the dummy console, because at the point where other arches initialize their graphics subsystem, we can't do it.
We do it later when all infrastructure is available and then take_over_console().

> I don't know if it makes any sense to build your console as a module. 

Why not ?
Switching from sti console to another one should be possible IMHO.
It's even good when debugging the STI functions.

> I don't know why sticore is in the console directory.

sticore is used by stifb and sticon.
It has more console functions, so IMHO it's OK.

Helge
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> For the record, I 've been testing those patches on C3000 (no problems)
> B2600 (HPMC in tulip_get_stats() from LED/LCD task), and A500 (no problems).
> The C3000 (32-bit UP) and A500 (64-bit SMP) ran "make -j4" several days
> in a loop with no problems or console output.

I just saw the following message doing an "apt-get upgrade" on c2k:

tar: ./usr/share/sysvinit/inittab: time stamp 2006-09-22 20:32:05.780266 is 0.000141 s in the future

System is 2.6.18-rc7-pa1.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Joel Soete" <soete.joel@scarlet.be>
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Subject: [parisc-linux] tulip de2104c warning build cleanup
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Hello,

this was just a warning at build time:
  hppa64-linux-gnu-gcc -Wp,-MD,drivers/net/tulip/.de2104x.o.d  -nostdinc
-isystem /usr/lib/gcc/hppa64-linux-gnu/4.1.2/include -D__KE
RNEL__ -Iinclude -Iinclude2 -I/CAD/linux-2.6.18-pa0-20060925/include -inc=
lude
include/linux/autoconf.h -I/CAD/linux-2.6.18-pa0-20060
925/drivers/net/tulip -Idrivers/net/tulip -Wall -Wundef -Wstrict-prototyp=
es
-Wno-trigraphs -fno-strict-aliasing -fno-common -O2 -pip
e -mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-secti=
ons
-march=3D2.0 -mschedule=3D8000 -fomit-frame-pointer -fno-st
ack-protector -Wdeclaration-after-statement -Wno-pointer-sign 
-D"KBUILD_STR(s)=3D#s" -D"KBUILD_BASENAME=3DKBUILD_STR(de2104x)"  -D"KBUI=

LD_MODNAME=3DKBUILD_STR(de2104x)" -c -o drivers/net/tulip/de2104x.o
/CAD/linux-2.6.18-pa0-20060925/drivers/net/tulip/de2104x.c
/CAD/linux-2.6.18-pa0-20060925/drivers/net/tulip/de2104x.c:2086: warning:=

'de_remove_one' defined but not used

which seems to be clean with:
--- drivers/net/tulip/de2104x.c 2006-09-18 10:45:14.000000000 +0200
+++ drivers/net/tulip/de2104x.c.New     2006-09-25 12:20:36.000000000 +02=
00
@@ -2160,7 +2160,7 @@
        .name           =3D DRV_NAME,
        .id_table       =3D de_pci_tbl,
        .probe          =3D de_init_one,
-       .remove         =3D __exit_p(de_remove_one),
+       .remove         =3D __devexit_p(de_remove_one),
 #ifdef CONFIG_PM
        .suspend        =3D de_suspend,
        .resume         =3D de_resume,

hth,
    Joel=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous de=
venez aujourd'hui Scarlet One grace a un client existant de Scarlet, vous=
 recevez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite su=
r http://www.clubscarlet.be

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Group,

The home of this stuff seems to now be lsi logic.
<http://www.lsilogic.com/cm/LookupDocuments.do>

The ncr53c720 does not seem to have anything of
its own, other than a product brief - probably
now included in the other technical manuals.

For instance - the "SCSI SCRIPTS Processor Programmer's Guide"
includes the 53c7xx series chips.

Mike
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Subject: Re: [parisc-linux] Can't write to hard drives on a K200
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Joe Emenaker wrote:
> I've booted a Gentoo install CD, which puts me in a root shell. The 
> first step, I guess, is to partition the drives... but the thing won't 
> let me.
> 
>  > When I try to write from "cfdisk /dev/sda", it gives me:
>  > Wrting partition table to disk...
>  > end_request: I/O error, dev sda, sector 0
>  > Buffer I/O error on device sda, logical block 0
>  > lost page write due to I/O error on sda
>  > SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
> 
> Just in case it was a glitch in cfdisk, I tried writing from fdisk, as 
> well:
> 
>  > Calling ioctl() to re-read partition table.
>  > end_request: I/O error, dev sda, sector 0
>  > Buffer I/O error on device sda, logical block 0
>  > lost page write due to I/O error on sda
>  > SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
>  > sda: Write Protect is off
>  > SCSI device sda: drive cache: write through w/ FUA
>  > SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
>  > sda: Write Protect is off
>  > SCSI device sda: drive cache: write through w/ FUA
> 
> Hrmmm.... so maybe the disks are read-only somehow, right? Well then how 
> come I can dd like so:
> 
>   dd if=/dev/zero of=/dev/sda bs=512 count=10
> 
> That works fine. So.... anybody have any idea what's going on?
> 
If that doesn't matter to completely erase your disk try the same cmdl without count param, i.e.
	dd if=/dev/zero of=/dev/sda bs=512

Or to be quicker:
	dd if=/dev/zero of=/dev/sda bs=512k (e.g.)

(I don't remember where [c ]fdisk write its "partition table" but) my hypothesis is that could be out of first 5k?

btw, iirc you have severall other disks on this system, didn't you have the opportunity to switch this disk with another one 
  or, if possible, choose another disk (sdb, sdc, sdd?) to install your distro?

Hth,
	Joel
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
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> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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On Mon September 25 2006 18:28, Joe Emenaker wrote:
> I've booted a Gentoo install CD, which puts me in a root shell. The 
> first step, I guess, is to partition the drives... but the thing won't 
> let me.
> 
>  > When I try to write from "cfdisk /dev/sda", it gives me:
>  > Wrting partition table to disk...
>  > end_request: I/O error, dev sda, sector 0
>  > Buffer I/O error on device sda, logical block 0
>  > lost page write due to I/O error on sda
>  > SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
> 
> Just in case it was a glitch in cfdisk, I tried writing from fdisk, as well:
> 
>  > Calling ioctl() to re-read partition table.
>  > end_request: I/O error, dev sda, sector 0
>  > Buffer I/O error on device sda, logical block 0
>  > lost page write due to I/O error on sda
>  > SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
>  > sda: Write Protect is off
>  > SCSI device sda: drive cache: write through w/ FUA
>  > SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
>  > sda: Write Protect is off
>  > SCSI device sda: drive cache: write through w/ FUA
> 
> Hrmmm.... so maybe the disks are read-only somehow, right? Well then how 
> come I can dd like so:
> 
>    dd if=/dev/zero of=/dev/sda bs=512 count=10
> 
> That works fine. So.... anybody have any idea what's going on?
> 

Other problems have been report on other models that also use the ncr53c720
driver -  most often filesystem corruption.

The problem has not yet been isolated - might be the driver code or the
hardware adapter code used with that scsi adapter.

In contrast, some pci add-in cards that use the driver are known to work(???).

Translation: Something is wrong, no one has yet offered a solution.

Mike
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Subject: Re: [parisc-linux] Can't write to hard drives on a K200
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Joel Soete wrote:
>> Hrmmm.... so maybe the disks are read-only somehow, right? Well then 
>> how come I can dd like so:
>>
>>   dd if=/dev/zero of=/dev/sda bs=512 count=10
>>
>> That works fine. So.... anybody have any idea what's going on?
> If that doesn't matter to completely erase your disk try the same cmdl 
> without count param, i.e.
>     dd if=/dev/zero of=/dev/sda bs=512
Well, I did the entire drive with:
   dd if=/dev/zero of=/dev/sda bs=512 count=10 count=8388314
and that worked fine.

I also tried your
    dd if=/dev/zero of=/dev/sda bs=512k
and that worked too (8192 records in, 8192 records out).

So... dd works, (c)fdisk doesn't. I guess I could just get someone to 
partition a blank hd just the way I want and then send me their 
partition table (dd if=/dev/sdX bs=512 count=1 | gzip -9 | mail ....), 
then I could dd it on this end and I'd be all set, huh?

Well, there's another option. I could plug the drives into a SCSI card 
on a PC... but I've tried that, and I can't get that to work. If someone 
wants to help me with *that*, I'd appreciate that as well, since I 
clearly don't understand all of the intricacies of SCSI, because I 
couldn't get the PC to recognize the drive(s). I *think* it had to do 
with the drives being (apparently) "single-ended"... but I don't know.

- Joe

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On Tue September 26 2006 18:38, Joe Emenaker wrote:
> Joel Soete wrote:
> >> Hrmmm.... so maybe the disks are read-only somehow, right? Well then 
> >> how come I can dd like so:
> >>
> >>   dd if=/dev/zero of=/dev/sda bs=512 count=10
> >>
> >> That works fine. So.... anybody have any idea what's going on?
> > If that doesn't matter to completely erase your disk try the same cmdl 
> > without count param, i.e.
> >     dd if=/dev/zero of=/dev/sda bs=512
> Well, I did the entire drive with:
>    dd if=/dev/zero of=/dev/sda bs=512 count=10 count=8388314
> and that worked fine.
> 
> I also tried your
>     dd if=/dev/zero of=/dev/sda bs=512k
> and that worked too (8192 records in, 8192 records out).
> 
> So... dd works, (c)fdisk doesn't. I guess I could just get someone to 
> partition a blank hd just the way I want and then send me their 
> partition table (dd if=/dev/sdX bs=512 count=1 | gzip -9 | mail ....), 
> then I could dd it on this end and I'd be all set, huh?
> 
> Well, there's another option. I could plug the drives into a SCSI card 
> on a PC... but I've tried that, and I can't get that to work. If someone 
> wants to help me with *that*, I'd appreciate that as well, since I 
> clearly don't understand all of the intricacies of SCSI, because I 
> couldn't get the PC to recognize the drive(s). I *think* it had to do 
> with the drives being (apparently) "single-ended"... but I don't know.
>

It is hard to say - 

The drive's firmware reported a model number that indicates SE - but
it also reported an HP revision number for the drive firmware.  Which,
as Dave pointed, means the model number reported may not be complete.

The driver reported that the drives where using differential - this
might stand a better chance of being correct.

The driver in pa-risc is a derivative of the {open,free,net}BSD
driver - it should negotiate with the attached drive(s) the proper
SCSI connection or tri-state the SCSI bus to prevent drive/adapter
damage.

Still with me?
differential comes in two flavors - High Voltage and Low Voltage
I am guessing from the chip's age that its version of differential is HVD.

If your pa-risc machine has connectors to external drives - they should
be labeled - now that label you can trust.

Another thing to consider - as I recall, the dmesg of your machine has 
reported two SCSI controllers - the one not using the ncr53c driver has
only the CD-ROM on it - you might consider adding a drive 
(of the proper type - check your dmesg) to the scsi chain with the 
CD-ROM on it.

Another thing that might be worth trying - DD your live-cd image onto
one of the hard drives - if there are no read/write problems with DD, 
it should work.

An cd-rom image on a hard drive?  Yes, that does work for me - I have
an iso image DD copied to a 100Mb removable (zip) SCSI-2 drive.  Linux
doesn't care about media type vs filesystem type.

Mike
 
> - Joe
> 
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On Thu September 28 2006 13:47, Michael S. Zick wrote:
>
> The SCSI SCRIPTS Processors Programming Guide:
> http://www.lsilogic.com/files/docs/techdocs/storage_stand_prod/PCISCSICont/Software/8XX_21.pdf
> 
> This document also covers 7xx SCRIPTS processors - the comment about 770+ comes about because
> this is an LSI document and controllers prior to the 770 acquired from Symbolics where not
> continued. [confirmed]
> This _is_ the programming manual for the 720 when limited to the 720 instruction set ...
> 

The following two items are posted for the use of the parisc-Linux
driver development community by permission of LSI-Logic.  
No NDA required for either item, additional
re-distribution requires permission from LSI-Logic.

The 53C720/53C720SE data manual:
http://www.morethan.org/parisc/53C720_Data_Manual_Rev_3_1.PDF

The SCSI SCRIPTS assembler:
http://www.morethan.org/parisc/nasm302.zip
(includes 700, 710, 720 instruction sets)

Mike
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On Wed October 4 2006 08:05, Michael S. Zick wrote:
>
> The following two items are posted for the use of the parisc-Linux
> driver development community by permission of LSI-Logic.  
> No NDA required for either item, additional
> re-distribution requires permission from LSI-Logic.
> 
> The 53C720/53C720SE data manual:
> http://www.morethan.org/parisc/53C720_Data_Manual_Rev_3_1.PDF
> 
> The SCSI SCRIPTS assembler:
> http://www.morethan.org/parisc/nasm302.zip
> (includes 700, 710, 720 instruction sets)
> 

And if those links are pulled when you read this, contact me.

> Mike
>
Mike
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] C3600 crash with PCMCIA bridge
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On Saturday 07 October 2006 17:27, James Bottomley wrote:
> On Sat, 2006-10-07 at 16:55 +0200, Guy Martin wrote:
> > I've been experiencing kernel crashes when I plug a RICOH RL5c475 cardbus bridge.
> > 
> > I've attached the crash info.
> > 
> > Linux hope 2.6.17.4-pa6 #1 Thu Jul 13 09:06:34 CEST 2006 parisc PA8600 (PCX-W+) GNU/Linux
> 
> The only parisc chip known to work with cardbus is dino ... there are a
> few strage tweaks you have to do to get it all running (and even dino
> only seems to work with my single socket yenta bridge; it doesn't work
> for helge with his dual yenta tadpole).

Hi James,

One correction:
Last time I tried (and after a few people here on the list helped) it did worked with both slots in my tadpole.

Helge
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Subject: Re: [parisc-linux] [PATCH 562] m68k/HP300: Enable HIL configuration
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Hi Geert,
Hi Kars,

thanks for the patch.

Just out of couriosity:
Does anyone of you still have a HP300 to test ?

Helge

On Monday 09 October 2006 22:22, Geert Uytterhoeven wrote:
> Enable HIL configuration options on HP300
> 
> Signed-Off-By: Kars de Jong <jongk@linux-m68k.org>
> Signed-Off-By: Geert Uytterhoeven <geert@linux-m68k.org>
> 
> ---
>  keyboard/Kconfig |    4 ++--
>  misc/Kconfig     |    2 +-
>  mouse/Kconfig    |    2 +-
>  serio/Kconfig    |    2 +-
>  4 files changed, 5 insertions(+), 5 deletions(-)
....
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From - Thu Nov 08 21:35:10 2018
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Subject: Re: [parisc-linux] [PATCH 562] m68k/HP300: Enable HIL configuration
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	Hi Helge,

On Tue, 10 Oct 2006, Helge Deller wrote:
> Just out of couriosity:
> Does anyone of you still have a HP300 to test ?

I don't have one, but IIRC, Kars has a few machines.

Peter: don't you have one, too?

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds



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Cc: Andrew Morton <akpm@osdl.org>,
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On Tue, 2006-10-10 at 17:05 -0700, Ollie Wild wrote:

> +                       vma->vm_flags &= ~VM_EXEC;
> +               // FIXME: Are the next two lines sufficient, or do I need to
> +               // do some additional magic?
> +               vma->vm_flags |= mm->def_flags;
> +               vma->vm_page_prot = protection_map[vma->vm_flags & 0x7];

Yeah, you'll need to change the PTEs for those pages you created by
calling get_user_page() by calling an mprotect like function; perhaps
something like:

 struct vm_area_struct *prev;
 unsigned long vm_flags = vma->vm_flags;

 s/vma->vm_flags/vm_flags/g

 err = mprotect_fixup(vma, &prev, vma->vm_start, vma->vm_end, vm_flags);
 BUG_ON(prev != vma);

mprotect_fixup will then set the new protection on all PTEs and update
vma->vm_flags and vma->vm_page_prot.

> +               /* Move stack pages down in memory. */
> +               if (stack_shift) {
> +                       // FIXME: Verify the shift is OK.
> +

What exactly are you wondering about? the call to move_vma looks sane to
me

> +                       /* This should be safe even with overlap because we
> +                        * are shifting down. */
> +                       ret = move_vma(vma, vma->vm_start,
> +                                       vma->vm_end - vma->vm_start,
> +                                       vma->vm_end - vma->vm_start,
> +                                       vma->vm_start - stack_shift);
> +                       if (ret & ~PAGE_MASK) {
> +                               up_write(&mm->mmap_sem);
> +                               return ret;
> +                       }
>                 }


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On Fri September 29 2006 09:56, Matthew Wilcox wrote:
> On Fri, Sep 29, 2006 at 09:39:19AM -0500, Michael S. Zick wrote:
> > I can confirm that - having never worked for HP, all I can do is guess,
> > and I often guess wrong.
> 

Still reading, perhaps learning.  Now have a HP specific question...

> 
> We can call you unable to read.  Looking at
> http://hwdb.parisc-linux.org/view.php?type=machine&name=K200
> there is indeed
> KittyHawk GSY Core SCSI (Foreign I/O Module)  (NCR53c710 driver)
> but there is also
> KittyHawk GSY Core FW-SCSI (A DMA)  (Zalon driver)
> 
> The hard drives are HVD SCSI and are connected to the Core FW-SCSI
> (ncr720 chip).  The tape drive and CD-ROM drive are SE SCSI and are
> connected to the Core SCSI (ncr710 chip).
> 
> This is not an uncommon arrangement; it is also found in the
> B160L, C100, C110, C160, C160L, C180, C180XP, J200, J210, J210XC, J282,
> as well as all the other K-class machines.
> 
> Several B, C and J class machines use a PCI NCR 875 chip to provide HVD
> SCSI.  They also still use the 710 provided in Lasi for SE SCSI.
> 

I am still studying the documentation with an eye towards re-writing
the ncr-risc code as hp-specific...

I see from a note on the wiki that some machines with more than one
GSC (GSY?) bus run the buses at different speeds (32 Mhz and 40 Mhz).

Could you (or anyone on the list) eyeball the GSC scsi card(s) and
see if they have their own crystal(s)? 
Or are these controllers clocked by the GSC bus clock?

Expected would be a 40 or 80 Mhz crystal depending on the controller
if not clocked by the card's bus.

Mike
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Subject: [parisc-linux] NICs on EISA bus...
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All:
Has anyone gotten any EISA NICs to work successfully with the parisc? 
In particular, the card I'm looking to get running is the HWP1850 (HP
part # 25567-60003).  I found an old reference to this card on the list
( http://lists.parisc-linux.org/hypermail/parisc-linux/7824.html ), but
there was no response.  It appears to use the same intel microcontroller
as the onboard NIC (82596CA), but on an EISA card.  The card is
recognized on my 715/50 running 2.6.12:

Aug 24 01:29:35 localhost kernel: Mongoose EISA Adapter found at
0xfc000000
Aug 24 01:29:35 localhost kernel: Enumerating EISA bus
Aug 24 01:29:35 localhost kernel: EISA slot 1: HWP1850 EISA IRQ 3
Aug 24 01:29:35 localhost kernel: EISA: Probing bus 0 at 4
Aug 24 01:29:35 localhost kernel: EISA: Mainboard HWPC000 detected.
Aug 24 01:29:35 localhost kernel: EISA: slot 1 : HWP1850 detected.
Aug 24 01:29:35 localhost kernel: EISA: Detected 1 card.

Writing a simple EISA driver allows me to read the board id and MAC off
the card, but I'm not sure if the IO or interrupts are working
correctly.  Is there some reason (eg kernel/eisa bus issues) that I
shouldn't expect to get this to work?  I spend all my time in userspace,
so I may very well have driver issues, but I'd like to know whether this
is even possible.

Thanks,
James

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On Wed, 2006-10-11 at 12:22 -0400, James Love wrote:
> Writing a simple EISA driver allows me to read the board id and MAC off
> the card, but I'm not sure if the IO or interrupts are working
> correctly.  Is there some reason (eg kernel/eisa bus issues) that I
> shouldn't expect to get this to work?  I spend all my time in userspace,
> so I may very well have driver issues, but I'd like to know whether this
> is even possible.

It's possible, but I'm not sure it can be done without programming the
WAX interface (that's a thing the person who last read the WAX documents
can tell us ... unfortunately we no longer seem to have a copy of the
docs).

James


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Cc: Andrew Morton <akpm@osdl.org>,
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Xref: news.gmane.org gmane.linux.ports.parisc:24022

> on first sight it looks like you pin the entire userspace buffer at the
> same time (but I can misread the code; this stuff is a bit of a
> spaghetti by nature); that would be a DoS scenario if true...

I'm not sure I understand.  Could you please elaborate?

Thanks,
Ollie
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From: "Ollie Wild" <aaw@google.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Removing MAX_ARG_PAGES (request for
	comments/assistance)
Date: Tue, 10 Oct 2006 17:05:09 -0700
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Hi,

A few months back, there was some discussion about increasing
MAX_ARG_PAGES (http://thread.gmane.org/gmane.linux.kernel/418858).
Since this is a problem which Google seems to bump into on a regular
basis -- we just keep jacking up the limit -- I thought I'd have  a
stab at implementing the preferred solution as outlined by Linus.

I've attached a patch which replaces the pages array from the
linux_binprm struct with a stack vm_area added to the new process's
mm_struct.  The region grows using the normal page fault / stack
extension mechanism.  Since the vm_area is swappable -- which I've
confirmed via testing -- we don't have to worry about memory
starvation.

I've tested this on the um/i386, i386, and x86_64 architectures with
the elf and script binfmts.  I'd like to get feedback from the Linux
community.  If anyone would like to test/implement the areas I've
missed, I'd greatly appreciate it.

Some outstanding issues / concerns:

- I haven't addressed the CONFIG_STACK_GROWSUP (parisc) case.  Would
someone on the parisc list be willing to have a go at this?  Grant
Grundler has offered to provide me access to hardware, but I'd prefer
to let a pa-risc guru have a go.

- I haven't tested this on a NOMMU architecture.  Could someone please
validate this?

- What, if any command line limits should we enforce?  The do_execve()
callchain has plenty of hooks where the calling process can sleep, so
CPU starvation shouldn't be a problem.  Memory consumption is limited
by the RLIMIT_STACK setting.  Note, however, that I'm not providing
any guarantee on the availability of space for the actual stack.

- Inside setup_arg_pages(), I have to move the stack region.
Different linux_binfmt handlers place it in different locations
relative to STACK_TOP, and STACK_TOP itself may have different values
depending on the personality of the executable.  When executing
scripts, the arg strings need to be accessed before we know which
binary format is being executed, so we can't generally make the
correct determination beforehand.

- There are  bunch of linux_binfmt handlers which are either obsolete
or specific to particular platforms.  Would someone be willing to look
at these?

Thanks,
Ollie

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Subject: Re: [parisc-linux] [PATCH 562] m68k/HP300: Enable HIL	configuration
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On di, 2006-10-10 at 22:23 +0200, Geert Uytterhoeven wrote:
> On Tue, 10 Oct 2006, Helge Deller wrote:
> > Just out of couriosity:
> > Does anyone of you still have a HP300 to test ?
> 
> I don't have one, but IIRC, Kars has a few machines.

I only have one: a HP9000/425t with 64 MB of memory (about the maximum
possible, I think).

Most of it works, SCSI support is still work in progress.

I didn't spend much time on it lately, unfortunately my cross compiler
toolchain broke after some upgrades and I still didn't get around to
fixing it.

Kars.




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On Tue, 2006-10-10 at 17:05 -0700, Ollie Wild wrote:

on first sight it looks like you pin the entire userspace buffer at the
same time (but I can misread the code; this stuff is a bit of a
spaghetti by nature); that would be a DoS scenario if true...


 -- 
if you want to mail me at work (you don't), use arjan (at) linux.intel.com

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Subject: Re: [parisc-linux] NICs on EISA bus...
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Thanks for the response.
This particular 715 appears to have a Scorpio EISA bus adapter.  I see
no mention of WAX as a device in the boot logs (excerpt appended below).
 Is the Scorpio a good or a bad thing in regards to getting this bus
working?  I also have a 755 with a Cobra EISA BA, any idea whether that
will work either?

James

Aug 24 01:29:35 localhost kernel: EISA bus registered
Aug 24 01:29:35 localhost kernel: Searching for devices...
Aug 24 01:29:35 localhost kernel: Found devices:
Aug 24 01:29:35 localhost kernel: 1. Stinger Optional Graphics at
0xf4000000 [0]] { 10, 0x0, 0x006, 0x00077 }
Aug 24 01:29:35 localhost kernel: 2. Scorpio Core BA at 0xf082f000 [2] {
11, 0x00, 0x007, 0x00070 }
Aug 24 01:29:35 localhost kernel: 3. Scorpio Core SCSI at 0xf0825000
[2/0/1] { 11, 0x0, 0x007, 0x00071 }
Aug 24 01:29:35 localhost kernel: 4. Scorpio Core LAN (802.3) at
0xf0826000 [2/0/2] { 10, 0x0, 0x007, 0x00072 }
Aug 24 01:29:35 localhost kernel: 5. Scorpio Core HIL at 0xf0821000
[2/0/3] { 10, 0x0, 0x007, 0x00073 }
Aug 24 01:29:35 localhost kernel: 6. Scorpio Core RS-232 at 0xf0823000
[2/0/4] { 10, 0x0, 0x007, 0x00075 }
Aug 24 01:29:35 localhost kernel: 7. Scorpio Core RS-232 at 0xf0822000
[2/0/5] { 10, 0x0, 0x007, 0x00075 }
Aug 24 01:29:35 localhost kernel: 8. Scorpio Core Centronics at
0xf0824000 [2/0/6] { 10, 0x0, 0x007, 0x00074 }
Aug 24 01:29:35 localhost kernel: 9. Scorpio Audio at 0xf1000000 [2/0/8]
{ 10, 0x0, 0x007, 0x0007b }
Aug 24 01:29:35 localhost kernel: 10. Scorpio EISA BA at 0xfc000000 [4]
{ 11, 0x0, 0x007, 0x00076 }
Aug 24 01:29:35 localhost kernel: 11. Scorpio (715/50) at 0xfffbe000 [8]
{ 0, 0x0, 0x310, 0x00004 }
Aug 24 01:29:35 localhost kernel: 12. Memory at 0xfffbf000 [9] { 1, 0x0,
0x017, 0x00009 }
Aug 24 01:29:35 localhost kernel: CPU(s): 1 x PA7100 (PCX-T) at
50.000000 MHz

>>> James Bottomley <James.Bottomley@SteelEye.com>  >>>
On Wed, 2006-10-11 at 12:22 -0400, James Love wrote:
> Writing a simple EISA driver allows me to read the board id and MAC
off
> the card, but I'm not sure if the IO or interrupts are working
> correctly.  Is there some reason (eg kernel/eisa bus issues) that I
> shouldn't expect to get this to work?  I spend all my time in
userspace,
> so I may very well have driver issues, but I'd like to know whether
this
> is even possible.

It's possible, but I'm not sure it can be done without programming the
WAX interface (that's a thing the person who last read the WAX documents
can tell us ... unfortunately we no longer seem to have a copy of the
docs).

James




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Cc: Andrew Morton <akpm@osdl.org>,
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 Andi Kleen <ak@muc.de>,
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> Yeah, you'll need to change the PTEs for those pages you created by
> calling get_user_page() by calling an mprotect like function; perhaps
> something like:

Thanks.  I've incorporated your changes (updated patch attached).

> > +               /* Move stack pages down in memory. */
> > +               if (stack_shift) {
> > +                       // FIXME: Verify the shift is OK.
> > +
>
> What exactly are you wondering about? the call to move_vma looks sane to
> me

My concern was that the binfmt handler may have setup other vm areas
which overlap the new range.  The move_vma() function doesn't do
overlap checking.  I'm not sure if this is something I need to guard
against, or if it falls in the "Don't do that!" category.

Ollie

------=_Part_15902_18081752.1160603294502
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Subject: Re: [parisc-linux] Can't write to hard drives on a K200
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On Wed, Oct 11, 2006 at 11:14:13AM -0500, Michael S. Zick wrote:
> Could you (or anyone on the list) eyeball the GSC scsi card(s) and
> see if they have their own crystal(s)? 
> Or are these controllers clocked by the GSC bus clock?
> 
> Expected would be a 40 or 80 Mhz crystal depending on the controller
> if not clocked by the card's bus.

The GSC bus and the SCSI bus are in independent frequency domains.
All logic on the board will be divided between those two zones.
My guess is the SCSI chip is bridging the two but I don't know that
for sure.

My point is the presence of the crystal is just to drive the clocking
on the SCSI Bus and probably doesn't tell us much about
which frequency domain any particular part is unless you
put an oscilloscope on the board

grant
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Subject: Re: [parisc-linux] NICs on EISA bus...
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On Wed, Oct 11, 2006 at 02:19:20PM -0400, James Love wrote:
> This particular 715 appears to have a Scorpio EISA bus adapter.  I see
> no mention of WAX as a device in the boot logs (excerpt appended below).

The EISA bit of Wax and Mongoose are essentially the same.

>  Is the Scorpio a good or a bad thing in regards to getting this bus
> working?  I also have a 755 with a Cobra EISA BA, any idea whether that
> will work either?

That's also a Mongoose.

Interrupts probably work; I haven't tried them recently, but they should.
Port IO and Memory IO accesses to the chip from the CPU should work.
DMA from the chip to host RAM will not work.  I've read the chapter in
the ERS which describes how to make it work; unfortunately, I don't
remember it in enough detail, and don't have that document any more.
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Subject: [parisc-linux] Any chance of an HP AutoRAID array working?
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Hello PA-people,

Today I purchased 2 K370s and a K570 for roughly US$75 ($25 each).
All of the machines have 4 internal disks: 4, 4, 9, and 9 GB.

However, one K370 and the K570 have each got a disk array in them,
full of 18GB disks, and sporting a fancy LCD display.  These arrays
take up roughly half a rack each, and are labelled "HP AutoRAID".

The boxes have HPUX-10.20 on them, and SAM identifies the AutoRAID
unit as a single logical drive (with extra goodies such as the
power and fan status, etc.  Nice.)  Each array is connected to
its server via a large HSC board with what appears to be several
differential SCSI cables.

I'm keen to use Linux (probably Gentoo but Debian's also fine) on
these boxes, but I'm wondering if that'll mean I'll have to forfeit
the 8 x 18G disks in each array, which would be a pity...

I don't need to know the PSU and fan statuses, I just want the space.
If necessary, I can dedicate one of the 4 internal disks to HPUX,
just in case I need to reconfigure the RAID system.

Has anyone tried Linux on one of these AutoRAID systems?  A brief spin
though Google didn't reveal anything.  It also didn't reveal a manual
on how to configure the arrays, so any pointers to *that* would also
be useful.

Also, I presume that I can strip two of the machines to fill up
the remaining machine with RAM and CPUs;  the HWDB seems to suggest
that multiple processors will work OK under recent kernels.  Right?

Thanks,
Andrew

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On Fri October 13 2006 12:08, Matthew Wilcox wrote:
> On Wed, Oct 11, 2006 at 02:19:20PM -0400, James Love wrote:
> > This particular 715 appears to have a Scorpio EISA bus adapter.  I see
> > no mention of WAX as a device in the boot logs (excerpt appended below).
> 
> The EISA bit of Wax and Mongoose are essentially the same.
> 
> >  Is the Scorpio a good or a bad thing in regards to getting this bus
> > working?  I also have a 755 with a Cobra EISA BA, any idea whether that
> > will work either?
> 
> That's also a Mongoose.
> 
> Interrupts probably work; I haven't tried them recently, but they should.
> Port IO and Memory IO accesses to the chip from the CPU should work.
> DMA from the chip to host RAM will not work. 

The machine I am setting up to test changes in the ncr-risc code for
the scsi controllers also has the Cobra EISA BA.

Will look at the EISA DMA situation, but it will be a matter of luck
not skill or knowledge if I can make it work.

I do recall that getting the contents of the cache and the memory to
be the same has to be done in software and it did not sound easy the
first time I read about it.

Mike

> I've read the chapter in 
> the ERS which describes how to make it work; unfortunately, I don't
> remember it in enough detail, and don't have that document any more.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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On Thu, Oct 12, 2006 at 09:21:36PM +0200, Andrew Gaylard wrote:
...
> I'm keen to use Linux (probably Gentoo but Debian's also fine) on
> these boxes, but I'm wondering if that'll mean I'll have to forfeit
> the 8 x 18G disks in each array, which would be a pity...

No. Those are standard SCSI LUNs. use the LCD panel to config
the LUNs and the AutoRAID will arrange for shifting data from
RAID 1 to RAID 5 as it sees fit.

> Has anyone tried Linux on one of these AutoRAID systems?

At one point i did. I haven't in a long time though.

> Also, I presume that I can strip two of the machines to fill up
> the remaining machine with RAM and CPUs;  the HWDB seems to suggest
> that multiple processors will work OK under recent kernels.  Right?

In general, SMP is working.

AFAIK, K-class only had issues with console support
and some recent issues with GSC 53c720 support.
I've forgotten details. :(

grant
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On Sat October 14 2006 09:11, Matthew Wilcox wrote:
> On Sat, Oct 14, 2006 at 12:59:11PM +0000, Joel Soete wrote:
> > but yes that's the primary question and:
> > 	* I encountered pbs with ncr53c720 and core io ncr53c710
> > 	 (different pb with each hba but same one-to-one on d380 and c110),
> > 	* but no pb with same disk (and its scsi chain: cable + terminator) 
> > 	with ncr53c710 (behind dino) on a b180,
> > so
> > 	* no hw pb with disk,
> > 	* no sw pb with nc53c710 Jame's driver,
> > 	 (even thought less sure, as make me noticed Mike:
> > 		on b180, 53c710 is behind dino i.e. gsc pci bus bridge, 
> > 		right?
> > 		on c110 and d380, this 53c710 is behind LASI (afaik just a 
> > 		vlsi assembly and no bus bridge)
> > 		so could be also a pb with 53c710 when married with gsc?)
> 
> You should never listen to Zick.  

More from the least trusted source of information:

The C710 designed into the LASI chip operates from a fixed frequency
clock of 40Mhz.

Ref:
http://www.hpl.hp.com/hpjournal/95apr/apr95a4.pdf
Page: 3, Section: Phase-Locked Loop Clock Generators, Paragraph: 1

All K-class systems have at least 1 HP-HSC bus, it runs at 32Mhz.
In addition the K-400 and K-410 may have an additional HP-HSC bus
which runs at 40Mhz.

Ref:
http://www.hpl.hp.com/hpjournal/96feb/feb96a1.pdf
Page: 6, Section: I/O Expansion, Paragraph: 1

Mike
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On Mon October 16 2006 06:51, Joel Soete wrote:
>
> ====<>====
> 
> May be could we also use some define like:
> #define Mb        (1 << 20)
> #define Gb        (1 << 30)
>

Joel,
Let me add a bit (no pun intended) from the 53c7xx manuals ...

The transfer offset register is 21 bits - -

So the largest single chunk of memory 7xx can transfer is 2^21
in a single command (single list entry, if passing it lists).

There was a mention somewhere of a special use for the high bit,
I do not recall the details at this moment.

So a limit on the contiguous block size of 2^20 should work.
Larger blocks would have to generate multiple list entries
by the time the code reaches the controller.

Another limit of the transfer hardware in the controller is
that it can not transfer a block which crosses 2^32 boundaries.
(The transfer base register is 32 bits.)

In those cases, you also have to split the block into above/below
2^32 and reprogram the chips interface (HP) hardware inbetween.

Some of the 53c8xx controllers handle 2^64 physical addressing,
but I have not studied those yet.

> Duno yet if it's realted to my pb but tia for your attention,
>     Joel 
Mike
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I was reading through the gas hppa bits trying to find something for the
hppa64 port and wanted to clean this up.  If these types of patches are
acceptable, I'll probably feed a steady stream of them in.

2006-10-21  Jeff Bailey  <jbailey@raspberryginger.com>

        * config/tc-hppa.c: Use defines from bfd.h instead of magic constan=
ts.



--
Jeff Bailey - http://www.raspberryginger.com/jbailey/

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On Sat, Oct 21, 2006 at 02:17:19PM -0400, Jeff Bailey wrote:
> @@ -105,12 +105,6 @@ typedef som_symbol_type obj_symbol_type;
>  #endif
>  #endif /* OBJ_SOM */
>  
> -#if TARGET_ARCH_SIZE == 64
> -#define DEFAULT_LEVEL 25
> -#else
> -#define DEFAULT_LEVEL 10
> -#endif
> -
>  /* Various structures and types used internally in tc-hppa.c.  */
>  
>  /* Unwind table and descriptor.  FIXME: Sync this with GDB version.  */
> @@ -8259,7 +8253,11 @@ md_begin (void)
>    call_info_root = NULL;
>  
>    /* Set the default machine type.  */
> -  if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, DEFAULT_LEVEL))
> +#if TARGET_ARCH_SIZE == 64
> +  if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, bfd_mach_hppa10))
> +#else
> +  if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, bfd_mach_hppa20w))
> +#endif
>      as_warn (_("could not set architecture and machine"));
>  
>    /* Folding of text and data segments fails miserably on the PA.

My personal preference would be to see this patch as:

 #if TARGET_ARCH_SIZE == 64
-#define DEFAULT_LEVEL 25
+#define DEFAULT_LEVEL bfd_mach_hppa20w
 #else
-#define DEFAULT_LEVEL 10
+#define DEFAULT_LEVEL bfd_mach_hppa10
 #endif

... particularly since you seem to have got them the wrong way round in
this patch.

I'd also dearly love it if someone could unify the hppa and hppa64 ports
so we don't have to build two toolchains for one port.  Just like sparc,
mips, s390 and i386.
_______________________________________________
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From: "Ryan Bradetich" <rbradetich@gmail.com>
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Subject: [parisc-linux] Mux Updates.
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Hello all,

The following patch provides the following updates to the Mux driver:

  * Addresses the concerns Willy raised in this email:

http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030220.html

    I fixed the Mux to use not use the PDC Software console and actually use
    the Mux hardware.


  * Addresses the concerns Willy and Russell King raised in this email:

http://lists.parisc-linux.org/pipermail/parisc-linux/2005-December/027912.html

    I have not tested this fix yet, hopefully I will have a chance to verify
this fix
    on knapps.


  * Fixed some compiler warnings.


  * Updated the HP-PB driver to recognize the Gecko Boa device on the E-35.


  * Updated the Mux to claim the resources used for the serial ports.


Sorry this is one big patch, but my git-foo is very weak :(  I can work on
breaking this
patch into smaller chucks if it will make it easer for review.

Thanks!

- Ryan

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Hello all,<br><br>The following patch provides the following updates to the Mux driver:<br><br>&nbsp; * Addresses the concerns Willy raised in this email:<br>&nbsp;&nbsp;&nbsp; <a href="http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030220.html">
http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030220.html</a><br><br>&nbsp;&nbsp;&nbsp; I fixed the Mux to use not use the PDC Software console and actually use<br>&nbsp;&nbsp;&nbsp; the Mux hardware.<br><br><br>&nbsp; * Addresses the concerns Willy and Russell King raised in this email:
<br>&nbsp;&nbsp;&nbsp; <a href="http://lists.parisc-linux.org/pipermail/parisc-linux/2005-December/027912.html">http://lists.parisc-linux.org/pipermail/parisc-linux/2005-December/027912.html</a><br><br>&nbsp;&nbsp;&nbsp; I have not tested this fix yet, hopefully I will have a chance to verify this fix
<br>&nbsp;&nbsp;&nbsp; on knapps.<br><br><br>&nbsp; * Fixed some compiler warnings.<br><br><br>&nbsp; * Updated the HP-PB driver to recognize the Gecko Boa device on the E-35.<br><br><br>&nbsp; * Updated the Mux to claim the resources used for the serial ports.
<br><br><br>Sorry this is one big patch, but my git-foo is very weak :(&nbsp; I can work on breaking this<br>patch into smaller chucks if it will make it easer for review.<br><br>Thanks!<br><br>- Ryan<br><br>

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Subject: Re: [parisc-linux] [patch] Remove magic constant from gas/tc-hppa.c
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On Sun, Oct 22, 2006 at 01:19:18PM -0400, Jeff Bailey wrote:

> Index: configure

Don't send diff's for generated files.

> +  {"%fr10",  bfd_mach_hppa10,  10 + FP_REG_BASE},
> +  {"%fr10l", bfd_mach_hppa10,  10 + FP_REG_BASE},
> +  {"%fr10r", bfd_mach_hppa10,  10 + FP_REG_BASE + FP_REG_RSEL},

The "fr" entries needs more work now that you have added bfd_mach
values.  bfd_mach_hppa10 only had 16 FP registers (0 to 15) and
the left and right halves were not accessible.  In bfd_mach_hppa11,
16 additional FP registers were added and the left and right
halves became independently accessible.

> +#  ifdef TE_NetBSD
> +#  define ELF_TARGET_FORMAT       "elf32-hppa-netbsd"
> +#  define ELF64_TARGET_FORMAT     "elf64-hppa-linux"

The above line appears to be a typo.  However, the elf64-hppa-netbsd
output format isn't defined yet.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Mux Updates.
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On Sun, Oct 22, 2006 at 10:20:57AM -0700, Ryan Bradetich wrote:
> >+        mmio_region.name = "Mux";
> >> +        mmio_region.flags = IORESOURCE_MEM;
> >> +        mmio_region.start = dev->hpa.start + MUX_OFFSET;
> >> +        mmio_region.end = dev->hpa.start + MUX_OFFSET + (ports *
> >MUX_LINE_OFFSET) - 1;
> >> +        insert_resource(&iomem_resource, &mmio_region);
> >
> >If you want to go this way, you want IORESOURCE_BUSY on the flags, but
> >you don't need to do that.  Just:
> >
> >        request_mem_region(dev->hpa.start + MUX_OFFSET,
> >                                ports * MUX_LINE_OFFSET, "Mux");
> 
> 
> I changed the Mux to use this, but it did not work as expected:
> 
> Here are the relevant lines from the boot messages:
> 
> Enabling regular chassis codes support v0.05
> 
> CPU(s): 1 x PA7100LC (PCX-L) at 64.000000MHz
> Setting cache flush threshold to 9e0 (1 CPUs
> online)
> Lasi version 0 at 0xf0100000
> found.
> LED display at f010c000
> registered
> Found GeckoBoa at
> 0xfffb8000
> 
> drivers/parisc/hppb.c: failed to claim HP-PB bus space (fff00000,
> fff7ffff)

This isn't related to the Mux though ...

> Here are the relevant lines from /proc/iomem:

The wrapping was a bit strange; i've fixed it for this reply.

> f0100000-f0100fff : 60
> f0107000-f0107fff : 60:6
> f010c000-f010c000 : led_data
> fff74000-fff74fff : 56:52
> fff75000-fff75fff : 56:53
> fff78000-fff78fff : 56:56
>  fff78800-fff78fff : Mux
> fff7c000-fff7cfff : 56:60
> 
> 
> My understanding of the error message indicates that since Lasi and the LEDS
> already reserved portions of the space
> HP-PB wants, it caused the resource failure.   This has me a bit confused on
> how the bus walk code works ... I thought the probe function on the parent
> device should have been called before the probe function on any of the
> children ... so it seem the Gecko Boa should probe function should have been
> called before the LASI and LED probe functions.
> 
> Still looking into why this happens, but hints are welcome :)

Right.  So, what's happening here is that we call
ccio_request_resource() for the region that HPPB forwards, but that
fails.  I'd like you to trace through and find out why it's failing.  It
ought to succeed -- the ranges don't seem to overlap, and the
insert_resource() should succeed.  I'd look at ccio_get_iommu() and
check that it's returning NULL on your E35.

> Thanks for the reminder.  I had to re-work this a bit since we didn't have
> the dev and ports variable in this function.  I am

Oops ;-)

> working on expanding this to handle multiple Mux cards as well.

Cool.
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Le dimanche 22 octobre 2006 =C3=A0 14:13 -0400, John David Anglin a =C3=A9c=
rit :
> > +  {"%fr10",  bfd_mach_hppa10,  10 + FP_REG_BASE},
> > +  {"%fr10l", bfd_mach_hppa10,  10 + FP_REG_BASE},
> > +  {"%fr10r", bfd_mach_hppa10,  10 + FP_REG_BASE + FP_REG_RSEL},
>=20
> The "fr" entries needs more work now that you have added bfd_mach
> values.  bfd_mach_hppa10 only had 16 FP registers (0 to 15) and
> the left and right halves were not accessible.  In bfd_mach_hppa11,
> 16 additional FP registers were added and the left and right
> halves became independently accessible.

Thanks, I've updated the table with this now.  It occurs to me that I'm
initializing the table too early, though.  A LEVEL op would come too
late to do anything.  I'll rework the logic on that before I resend.

> > +#  ifdef TE_NetBSD
> > +#  define ELF_TARGET_FORMAT       "elf32-hppa-netbsd"
> > +#  define ELF64_TARGET_FORMAT     "elf64-hppa-linux"
>=20
> The above line appears to be a typo.  However, the elf64-hppa-netbsd
> output format isn't defined yet.

The current tc-hppa.c has:

#if TARGET_ARCH_SIZE =3D=3D 64
#include "bfd/elf64-hppa.h"
#if defined (TE_LINUX) || defined (TE_NetBSD)
#define TARGET_FORMAT "elf64-hppa-linux"

So this preserves current behaviour.

--
Jeff Bailey - http://www.raspberryginger.com/jbailey/

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Subject: [parisc-linux] Evening snapshot of gas patch
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This version of the patch is not suitable for inclusion, not sending it
to the binutils list. =20

The remaining unaddressed problem (until you guys find more, that is
*g*) is that the way I've done the hash table it gets setup once when
gas is started.  This means that a LEVEL directive comes too late to
change the registers table.  Nothing brilliant has come to mind yet for
a good way to solve this, but I'm back to my work week tomorrow, so
hopefully over the next few days something will pop into my head.

2006-10-21  Jeff Bailey  <jbailey@raspberryginger.com>

        * config/tc-hppa.c: Do not define DEFAULT_LEVEL.
        Add variables for architecture size.
        Add mach member to struct pd_reg and populate pre_defined_registers=
.
        (need_pa11_opcode): Use bfd_mach_hppa11 instead of pa11 for
        consistency.
        (need_pa11_opcode): Use defines from bfd.h instead of magic numbers=
.
        (pa_ip): Likewise.
        (pa_level): Likewise.
        (pa_parse_number): Use binutils hash instead of home-brew one.
        (md_begin): Use defines from bfd.h instead of DEFAULT_LEVEL.
        (init_default_arch): New function.
        (hppa_target_format): New function.
        (hppa_print_statistics): New function.
        (reg_name_search): Removed.
        (setup_reg_hash): New function.

        * config/tc-hppa.h: Redefine TARGET_FORMAT as hppa_target_format()
        and in terms of ELF_TARGET_FORMAT and ELF64_TARGET_FORMAT for OBJ_E=
LF.
        Remove extra definitions of TRUE and FALSE.
        Use elf64-hppa for 64 bit NetBSD.

        * configure.in: Define DEFAULT_ARCH for hppa.
        * configure.tgt: Specify arch for hppa and hppa64.

--
Jeff Bailey - http://www.raspberryginger.com/jbailey/

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_______________________________________________
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From: Alan Mock <alan.mock@gmail.com>
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Subject: [parisc-linux] 64-bit Userland
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Hello,

Is there currently any work being done on a 64-bit userland for  
Linux?  I can't find any recent references to it.
Thanks,

Alan
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From: "Ollie Wild" <aaw@google.com>
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Subject: [parisc-linux] Re: Removing MAX_ARG_PAGES (request for
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Cc: Andrew Morton <akpm@osdl.org>,
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It's been a couple weeks since I got any feedback on this.  I just
wanted to send out a gentle reminder to encourage people to take a
look.

I realize the kernel is in bugfix mode at the moment.  If people would
rather I resend after the 2.6.19 release, please let me know.

Thanks,
Ollie
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From: Jeff Bailey <jbailey@raspberryginger.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [patch] Remove magic constant from gas/tc-hppa.c
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Cc: binutils@sources.redhat.com,
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Le samedi 21 octobre 2006 =C3=A0 19:38 -0400, John David Anglin a =C3=A9cri=
t :
>        if (bfd_get_mach (stdoutput) < pa11)
>=20
> You missed the above pa11 and a couple of pa20 uses.  It would
> be nice if the duplication present in the definition of the enum
> pa_arch and the bfd_mach_* defines could be eliminated.  However,
> I think using the bfd_mach values in the opcode table would be
> ugly.

Other architectures seem to have the same problem.  They generally seem
to use the bfd_mach_* values in the tc-* files, and some other define in
the opcode headers.

> Ultimately, it would be nice to turn all the TARGET_ARCH_SIZE
> tests into runtime checks.

Sheesh!  Between you, Matthew and Carlos...  =3D)

So as requested, here it is.  I've gone as far as I can until I finish
the job with bfd.  I have a bit of this work done from the hppa64
hacking I've been doing, but that part isn't ready for submission yet.

Tested on hppa-linux (with the testsuite), hppa64-linux (with my
simpleasm hacks), and a specific extra taste to make sure that %mrp is
handled correctly.

2006-10-21  Jeff Bailey  <jbailey@raspberryginger.com>

        * config/tc-hppa.c: Do not define DEFAULT_LEVEL.
        Add variables for architecture size.
        Add mach member to struct pd_reg and populate pre_defined_registers=
.
        (need_pa11_opcode): Use bfd_mach_hppa11 instead of pa11 for
        consistency.
        (need_pa11_opcode): Use defines from bfd.h instead of magic numbers=
.
        (pa_ip): Likewise.
        (pa_level): Likewise.
        (pa_parse_number): Use binutils hash instead of home-brew one.
        (md_begin): Use defines from bfd.h instead of DEFAULT_LEVEL.
        (init_default_arch): New function.
        (hppa_target_format): New function.
        (hppa_print_statistics): New function.
        (reg_name_search): Removed.
        (setup_reg_hash): New function.

        * config/tc-hppa.h: Redefine TARGET_FORMAT as hppa_target_format()
        and in terms of ELF_TARGET_FORMAT and ELF64_TARGET_FORMAT for OBJ_E=
LF.
        Remove extra definitions of TRUE and FALSE.

        * configure.in: Define DEFAULT_ARCH for hppa.
        * configure: Regenerate.
        * configure.tgt: Specify arch for hppa and hppa64.


--
Jeff Bailey - http://www.raspberryginger.com/jbailey/

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Xref: news.gmane.org gmane.linux.ports.parisc:24045

Greetings! When boot I get the following boot message below. In short my 
sda which is my scsi floppy drive is trying to send up but fails. This 
happens a couple of times then times out and continues to boot. Once 
logged into the system I can't mount my floppy. If i trying to mount it, it
just hangs until i remove the disk. Any help would be appreciated!

Linux version 2.6.17.10-pa6 (root@PALINUX) (gcc version 3.3.5 (Gentoo 
3.3.5-r1, pie-8.7.7.1)) #2 Thu Oct 26 13:50:13 EST 2006
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: Snake.
model 00003160 00000481 00000000 00000000 77bbccf4 ffffffff 00000004 
0000000a 0000000a
vers  00000013
model 9000/715
Total Memory: 64 MB
On node 0 totalpages: 16384
  DMA zone: 16384 pages, LIFO batch:3
Built 1 zonelists
Kernel command line:  root=/dev/sdb4 console=tty0 sti=0 sti_font=VGA8x16 
palo_kernel=2/vmlinux
PID hash table entries: 512 (order: 9, 2048 bytes)
Console: colour dummy device 128x48
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 65536k available
Calibrating delay loop... 74.75 BogoMIPS (lpj=373760)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Stinger Optional Graphics at 0xf4000000 [0] { 10, 0x0, 0x006, 0x00077 }
2. Scorpio Sr. Core BA at 0xf082f000 [2] { 11, 0x0, 0x019, 0x00070 }
3. Scorpio Sr. Core SCSI at 0xf0825000 [2/0/1] { 10, 0x0, 0x019, 0x00071 }
4. Scorpio Sr. Core LAN (802.3) at 0xf0826000 [2/0/2] { 10, 0x0, 0x019, 
0x00072 }
5. Scorpio Sr. Core HIL at 0xf0821000 [2/0/3] { 10, 0x0, 0x019, 0x00073 }
6. Scorpio Sr. Core RS-232 at 0xf0823000 [2/0/4] { 10, 0x0, 0x019, 0x00075 }
7. Scorpio Sr. Core RS-232 at 0xf0822000 [2/0/5] { 10, 0x0, 0x019, 0x00075 }
8. Scorpio Sr. Core Centronics at 0xf0824000 [2/0/6] { 10, 0x0, 0x019, 
0x00074 }
9. Scorpio Sr. Audio at 0xf1000000 [2/0/8] { 10, 0x0, 0x019, 0x0007b }
10. Scorpio Sr. EISA BA at 0xfc000000 [4] { 11, 0x0, 0x019, 0x00076 }
11. Scorpio Sr.(715/75) at 0xfffbe000 [8] { 0, 0x0, 0x316, 0x00004 }
12. Memory at 0xfffbf000 [9] { 1, 0x0, 0x027, 0x00009 }
Enabling regular chassis codes support v0.05
CPU(s): 1 x PA7100 (PCX-T) at 75.000000 MHz
Whole cache flush 233043 cycles, flushing 6168576 bytes 686816 cycles
Setting cache flush threshold to 1140 (1 CPUs online)
Asp version 1 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered
Mongoose EISA Adapter found at 0xfc000000
Enumerating EISA bus
EISA slot 1: HWP1850 EISA IRQ 10
EISA: Probing bus 0 at 4
EISA: Mainboard HWPC000 detected.
EISA: slot 1 : HWP1850 detected.
EISA: Detected 1 card.
SCSI subsystem initialized
usbcore: registered new driver usbfs
usbcore: registered new driver hub
NET: Registered protocol family 2
IP route cache hash table entries: 512 (order: -1, 2048 bytes)
TCP established hash table entries: 2048 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 2048 bind 1024)
TCP reno registered
Chassis warnings not supported.
unwind_init: start = 0x10502680, end = 0x105416d0, entries = 16133
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler deadline registered
io scheduler cfq registered
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
EISA EEPROM at 0x00008400
PDC Stable Storage facility v0.30
Soft power switch support not available.
STI GSC/PCI core graphics driver Version 0.9a
    id 27f12392-40a00499, conforms to spec rev. 8.02
    graphics card name: HPA1991AC19
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, HPA1991AC19, id: 27f12392, 
mmio: 0xf4100000
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
2:0:4: ttyS0 at MMIO 0xf0823800 (irq = 20) is a 16550A
2:0:5: ttyS1 at MMIO 0xf0822800 (irq = 21) is a 16550A
parport_init_chip: enhanced parport-modes not supported.
parport0: PC-style at 0xf0824800, irq 22 [PCSPP]
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
usbcore: registered new driver ub
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xf0826000, IRQ 17
drivers/net/lasi_82596.c: MAC of HP700 LAN read from EEPROM
eth0: 82596 at 0xf0826000, 08 00 09 4F 83 68 IRQ 17.
orinoco 0.15rc3 (David Gibson <hermes@gibson.dropbear.id.au>, Pavel 
Roskin <proski@gnu.org>, et al)
orinoco_cs 0.15rc3 (David Gibson <hermes@gibson.dropbear.id.au>, Pavel 
Roskin <proski@gnu.org>, et al)
spectrum_cs 0.15rc3 (Pavel Roskin <proski@gnu.org>, David Gibson 
<hermes@gibson.dropbear.id.au>, et al)
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c700 rev 0
scsi0 : LASI SCSI 53c700
st: Version 20050830, fixed bufsize 32768, s/g segs 256
SCSI Media Changer driver v0.25
usbmon: debugfs is not available
ohci_hcd: 2005 April 22 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
USB Universal Host Controller Interface driver v3.0
sl811: driver sl811-hcd, 19 May 2005
Initializing USB Mass Storage driver...
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
  Vendor: TEAC      Model: FC-1     HF   07  Rev: RV B
  Type:   Direct-Access                      ANSI SCSI revision: 01 CCS
HP SDC: HP SDC at 0xf0821000, IRQ 18 (NMI IRQ 19)
HP SDC: New style SDC
HP SDC: Revision: 1820-4784
HP SDC: TI SN76494 beeper present
HP SDC: OKI MSM-58321 BBRTC present
HP SDC: Spunking the self test register to force PUP on next firmware reset.
HP SDC MLC: Registering the System Domain Controller's HIL MLC.
  Vendor: TOSHIBA   Model: CD-ROM XM-5401TA  Rev: 1036
  Type:   CD-ROM                             ANSI SCSI revision: 02
mice: PS/2 mouse device common for all mice
hil_kbd: probe of serio0 failed with error -5
hil_kbd: probe of serio1 failed with error -5
hil_kbd: probe of serio2 failed with error -5
hil_kbd: probe of serio3 failed with error -5
hil_kbd: probe of serio4 failed with error -5
hil_kbd: probe of serio5 failed with error -5
hil_kbd: probe of serio6 failed with error -5
hil_kbd: probe of serio7 failed with error -5
hil_kbd: probe of serio8 failed with error -5
hil_kbd: probe of serio9 failed with error -5
hil_kbd: probe of serio10 failed with error -5
hil_kbd: probe of serio11 failed with error -5
hil_kbd: probe of serio12 failed with error -5
hil_kbd: probe of serio13 failed with error -5
hil_kbd: probe of serio14 failed with error -5
hil_kbd: probe of serio15 failed with error -5
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: raid10 personality registered for level 10
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
raid5: measuring checksumming speed
   8regs     :    52.000 MB/sec
   8regs_prefetch:    55.600 MB/sec
   32regs    :    63.600 MB/sec
   32regs_prefetch:    67.200 MB/sec
raid5: using function: 32regs_prefetch (67.200 MB/sec)
raid6: int32x1     14 MB/s
raid6: int32x2     17 MB/s
raid6: int32x4     20 MB/s
raid6: int32x8     17 MB/s
raid6: using algorithm int32x4 (20 MB/s)
md: raid6 personality registered for level 6
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
device-mapper: 4.6.0-ioctl (2006-02-17) initialised: dm-devel@redhat.com
Advanced Linux Sound Architecture Driver Version 1.0.11rc4 (Wed Mar 22 
10:27:24 2006 UTC).
  Vendor: SEAGATE   Model: ST32151N          Rev: HP02
  Type:   Direct-Access                      ANSI SCSI revision: 02
harmony: cannot allocate graveyard buffer!
harmony: probe of 2:0:8 failed with error -12
ALSA device list:
  No soundcards found.
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
scsi: waiting for bus probes to complete ...
sda: Spinning up 
disk................................................................<6>HIL 
KEYB: HIL keyboard found (did = 0xdf, lang = english.us)
input: HIL keyboard as /class/input/input0
input: HIL keyboard, ID: 223
hil_kbd: probe of serio1 failed with error -5
..............................not responding...
sda : READ CAPACITY failed.
sda : status=1, message=00, host=0, driver=08
sd: Current: sense key=0x2
    ASC=0x4 ASCQ=0x0
sda: Write Protect is on
sda: Mode Sense: 37 88 80 08
sda: cache data unavailable
sda: assuming drive cache: write through
sda: Spinning up disk.........ready
SCSI device sda: 5120 256-byte hdwr sectors (1 MB)
sda: Write Protect is off
sda: Mode Sense: 37 88 00 08
sda: cache data unavailable
sda: assuming drive cache: write through
SCSI device sda: 5120 256-byte hdwr sectors (1 MB)
sda: Write Protect is off
sda: Mode Sense: 37 88 00 08
sda: cache data unavailable
sda: assuming drive cache: write through
 sda:<6>sd 0:0:2:0: Device not ready: <6>: Current: sense key=0x2
    ASC=0x1 ASCQ=0x0
end_request: I/O error, dev sda, sector 0
sd 0:0:2:0: Device not ready: <6>: Current: sense key=0x2
    ASC=0x4 ASCQ=0x0
end_request: I/O error, dev sda, sector 4
sd 0:0:2:0: Device not ready: <6>: Current: sense key=0x2
    ASC=0x4 ASCQ=0x0
end_request: I/O error, dev sda, sector 6
sd 0:0:2:0: Device not ready: <6>: Current: sense key=0x2
    ASC=0x4 ASCQ=0x0
end_request: I/O error, dev sda, sector 7
sd 0:0:2:0: Device not ready: <6>: Current: sense key=0x2
    ASC=0x4 ASCQ=0x0
end_request: I/O error, dev sda, sector 7
Buffer I/O error on device sda, logical block 0
sd 0:0:2:0: Device not ready: <6>: Current: sense key=0x2
    ASC=0x4 ASCQ=0x0
end_request: I/O error, dev sda, sector 0
sd 0:0:2:0: Device not ready: <6>: Current: sense key=0x2
    ASC=0x4 ASCQ=0x0
end_request: I/O error, dev sda, sector 4
sd 0:0:2:0: Device not ready: <6>: Current: sense key=0x2
    ASC=0x4 ASCQ=0x0
end_request: I/O error, dev sda, sector 6
sd 0:0:2:0: Device not ready: <6>: Current: sense key=0x2
    ASC=0x4 ASCQ=0x0
end_request: I/O error, dev sda, sector 7
sd 0:0:2:0: Device not ready: <6>: Current: sense key=0x2
    ASC=0x4 ASCQ=0x0
end_request: I/O error, dev sda, sector 7
Buffer I/O error on device sda, logical block 0
 unable to read partition table
sd 0:0:2:0: Attached scsi removable disk sda
sd 0:0:2:0: Attached scsi generic sg0 type 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
sr 0:0:4:0: Attached scsi CD-ROM sr0
sr 0:0:4:0: Attached scsi generic sg1 type 5
sd 0:0:6:0: Enabling Tag Command Queuing
SCSI device sdb: 4194685 512-byte hdwr sectors (2148 MB)
sdb: Write Protect is off
sdb: Mode Sense: 87 00 10 08
SCSI device sdb: drive cache: write back w/ FUA
SCSI device sdb: 4194685 512-byte hdwr sectors (2148 MB)
sdb: Write Protect is off
sdb: Mode Sense: 87 00 10 08
SCSI device sdb: drive cache: write back w/ FUA
 sdb: sdb1 sdb2 sdb3 sdb4
sd 0:0:6:0: Attached scsi disk sdb
sd 0:0:6:0: Attached scsi generic sg2 type 0
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 376k freed
Adding 267924k swap on /dev/sdb3.  Priority:-1 extents:1 across:267924k
EXT3 FS on sdb4, internal journal
eth0: link ok.
eth0: no IPv6 routers present

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Xref: news.gmane.org gmane.linux.ports.parisc:24046

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Willy,

On 10/19/06, Matthew Wilcox <matthew@wil.cx> wrote:
>
> This one actually worries me.
>
> However, we're saved by the HVERSION_REV.  I think this will work:
>
> static struct parisc_device_id hppb_tbl[] = {
>          { HPHW_BCPORT, HVERSION_REV_ANY_ID, 0x500, 0xc }, /* E25 and K */
> +        { HPHW_BCPORT, 0x0, 0x501, 0xc }, /* E35 */
> +        { HPHW_BCPORT, 0x0, 0x502, 0xc }, /* E45 */
> +        { HPHW_BCPORT, 0x0, 0x503, 0xc }, /* E55 */
>          { 0, }
> };


I updated my patch to use this mapping instead.  Thanks!.

> +        mmio_region.name = "Mux";
> > +        mmio_region.flags = IORESOURCE_MEM;
> > +        mmio_region.start = dev->hpa.start + MUX_OFFSET;
> > +        mmio_region.end = dev->hpa.start + MUX_OFFSET + (ports *
> MUX_LINE_OFFSET) - 1;
> > +        insert_resource(&iomem_resource, &mmio_region);
>
> If you want to go this way, you want IORESOURCE_BUSY on the flags, but
> you don't need to do that.  Just:
>
>         request_mem_region(dev->hpa.start + MUX_OFFSET,
>                                 ports * MUX_LINE_OFFSET, "Mux");


I changed the Mux to use this, but it did not work as expected:

Here are the relevant lines from the boot messages:

Enabling regular chassis codes support v0.05

CPU(s): 1 x PA7100LC (PCX-L) at 64.000000MHz
Setting cache flush threshold to 9e0 (1 CPUs
online)
Lasi version 0 at 0xf0100000
found.
LED display at f010c000
registered
Found GeckoBoa at
0xfffb8000

drivers/parisc/hppb.c: failed to claim HP-PB bus space (fff00000,
fff7ffff)


Here are the relevant lines from /proc/iomem:

f0100000-f0100fff :
60

f0107000-f0107fff :
60:6

f010c000-f010c000 :
led_data

fff74000-fff74fff :
56:52

fff75000-fff75fff :
56:53

fff78000-fff78fff :
56:56

  fff78800-fff78fff :
Mux
fff7c000-fff7cfff : 56:60


My understanding of the error message indicates that since Lasi and the LEDS
already reserved portions of the space
HP-PB wants, it caused the resource failure.   This has me a bit confused on
how the bus walk code works ... I thought the probe function on the parent
device should have been called before the probe function on any of the
children ... so it seem the Gecko Boa should probe function should have been
called before the LASI and LED probe functions.

Still looking into why this happens, but hints are welcome :)


You also need to unregister your region here:
>
>         release_mem_region(dev->hpa.start + MUX_OFFSET,
>                                 ports * MUX_LINE_OFFSET);


Thanks for the reminder.  I had to re-work this a bit since we didn't have
the dev and ports variable in this function.  I am
working on expanding this to handle multiple Mux cards as well.


Thanks for your feedback,

 - Ryan

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Willy,<br><br>On 10/19/06, <b class=3D"gmail_sendername">Matthew Wilcox</b>=
 &lt;<a href=3D"mailto:matthew@wil.cx" target=3D"_blank" onclick=3D"return =
top.js.OpenExtLink(window,event,this)">matthew@wil.cx</a>&gt; wrote:<div><s=
pan class=3D"gmail_quote">
</span><blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rg=
b(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">This one a=
ctually worries me.<br><br>However, we're saved by the HVERSION_REV.&nbsp;&=
nbsp;I think this will work:
<br><br> static struct parisc_device_id hppb_tbl[] =3D {<br>&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; { HPHW_BCPORT, HVERSION_REV_ANY_ID, 0x500=
, 0xc }, /* E25 and K */<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;{ HPHW_BCPORT, 0x0, 0x501, 0xc }, /* E35 */<br>+&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;{ HPHW_BCPORT, 0x0, 0x502, 0xc }, /* E45 */
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{ HPHW_BCPORT, 0x0, 0x=
503, 0xc }, /* E55 */<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {=
 0, }<br> };</blockquote><div><br>I updated my patch to use this mapping in=
stead.&nbsp; Thanks!.<br><br></div><blockquote class=3D"gmail_quote" style=
=3D"border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; p=
adding-left: 1ex;">

&gt; +&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;mmio_region.name =3D =
&quot;Mux&quot;;<br>&gt; +&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;m=
mio_region.flags =3D IORESOURCE_MEM;<br>&gt; +&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;mmio_region.start =3D dev-&gt;hpa.start + MUX_OFFSET;<br=
>&gt; +&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;mmio_region.end =3D =
dev-&gt;hpa.start

 + MUX_OFFSET + (ports * MUX_LINE_OFFSET) - 1;<br>&gt; +&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;insert_resource(&amp;iomem_resource, &amp;mmio=
_region);<br><br>If you want to go this way, you want IORESOURCE_BUSY on th=
e flags, but<br>you don't need to do that.&nbsp;&nbsp;Just:
<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;request_mem_region(=
dev-&gt;hpa.start + MUX_OFFSET,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;ports * MUX_LINE_OFFSET, &quot;Mux&quot;);</blockquote><div><br>I changed=
 the Mux to use this, but it did not work as expected:
<br><br>Here are the relevant lines from the boot messages:<br><br>Enabling=
 regular chassis codes support v0.05&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>CPU(s): 1 x PA7100LC (=
PCX-L) at 64.000000 MHz&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
<br>Setting cache flush threshold to 9e0 (1 CPUs online)&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp; <br>Lasi version 0 at 0xf0100000 found.&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>LED display at f010=
c000 registered&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;=20
<br>Found GeckoBoa at 0xfffb8000&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>drive=
rs/parisc/hppb.c: failed to claim HP-PB bus space (fff00000, fff7ffff)&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br><br></div><br>
Here are the relevant lines from /proc/iomem:
<br><br>f0100000-f0100fff : 60&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; <br>f0107000-f0107fff : 60:6&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>f010c000-f010c000 : led_data&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;=20
<br>fff74000-fff74fff : 56:52&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp; <br>fff75000-fff75fff : 56:53&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; <br>fff78000-fff78fff : 56:56&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;=20
<br>&nbsp; fff78800-fff78fff : Mux&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp; <br>fff7c000-fff7cfff : 56:60&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br><br><br>M=
y understanding of the error message indicates that since Lasi and the LEDS=
 already reserved portions of the space
<br>HP-PB wants, it caused the resource failure.&nbsp;&nbsp; This has me a =
bit confused on how the bus walk code works ... I thought the probe functio=
n on the parent device should have been called before the probe function on=
 any of the children ... so it seem the Gecko Boa should probe function sho=
uld have been called before the LASI and LED probe functions.&nbsp;&nbsp;=
=20
<br><br>Still looking into why this happens, but hints are welcome :)<br><b=
r><br><blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb=
(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">You also ne=
ed to unregister your region here:
<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;release_mem_region(=
dev-&gt;hpa.start + MUX_OFFSET,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;ports * MUX_LINE_OFFSET);
</blockquote><div><br>Thanks for the reminder.&nbsp; I had to re-work this =
a bit since we didn't have the dev and ports variable in this function.&nbs=
p; I am<br>working on expanding this to handle multiple Mux cards as well.<=
br><br>
<br>Thanks for your feedback,<br><br>&nbsp;- Ryan<br></div></div>

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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] [RFC] vdso for parisc-linux
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Xref: news.gmane.org gmane.linux.ports.parisc:24047

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At kyle's urging, i've started an initial implementation of vdso support 
  for parisc-linux. I've attached what I have so far for some initial 
comments. This is primarily based on the ppc vdso infrastructure.

Some things to consider:
1) The vdso object need to be mapped to userspace apps at some "default" 
location. In fact the kernel will look for an available vma using 
get_unmapped_area(). Right now I've arbitrarily picked 0x8000'0000. This 
should be reviewed.... one idea is to just map them at at the same place 
that shared libs are mapped (near 0x4000'0000). The bigger concern is 
whether we should make the mapping with MAP_SHARED so that the shared 
area is mapped congruent in all userspace apps that use the vdso. ppc 
doesn't do this.

2) our mmu_context_t used to be a single int that stores the space id of 
the current process. This has been extended into a struct that stores 
the space id and the vdso base address

3) 64-bit vdso does not work yet. Right now I am seeing binutils errors 
if i try to build a 64-bit vdso. For now this support is disabled -- 
it's not like we have 64-bit userspace anyway.

4) I haven't hooked up all the actual vdso functions yet, but with this 
patch userspace can see the functions exposed from the kernel, we can 
use gdb to put breakpoints in the vdso, etc.

5) We need to figure out which functions we want to expose. Several 
other archs expose gettimeofday and clock_get_time via vdso. For us, 
atomic ops are also prime candidates. Several archs also use the vdso to 
provide a cleaner signal trampoline interface. The latter mostly 
requires somebody to write up all the proper cfi instructions into 
sigtramp.S

As part of testing this, I also noticed that our gas does not support 
cfi directives that were added to binutils some time ago. I've submitted 
a patch for this.

glibc will need some work to get this to work. As a first step we need a 
dl-sysdep.h that defines:
  #define NEED_DL_SYSINFO_DSO     1

If you use upstream glibc this is already enabled for all targets, but 
debian glibc will need this added if you want to test.

Anyway, please let me know if you have any comments.

randolph

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diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 9b7e424..b6ff54e 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -31,6 +31,16 @@ CROSS_COMPILE	:= hppa-linux-
 endif
 endif
 
+# Set default 32 bits cross compilers for vdso and boot wrapper
+CROSS32_COMPILE ?=
+
+CROSS32CC		:= $(CROSS32_COMPILE)gcc
+CROSS32AS		:= $(CROSS32_COMPILE)as
+CROSS32LD		:= $(CROSS32_COMPILE)ld
+CROSS32AR		:= $(CROSS32_COMPILE)ar
+CROSS32OBJCOPY		:= $(CROSS32_COMPILE)objcopy
+export CROSS32CC CROSS32AS CROSS32LD CROSS32AR CROSS32OBJCOPY
+
 FINAL_LD=$(CROSS_COMPILE)ld --warn-common --warn-section-align 
 
 OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 27827bc..db84c0d 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -12,7 +12,7 @@ obj-y	     	:= cache.o pacache.o setup.o
 		   ptrace.o hardware.o inventory.o drivers.o semaphore.o \
 		   signal.o hpmc.o real2.o parisc_ksyms.o unaligned.o \
 		   process.o processor.o pdc_cons.o pdc_chassis.o unwind.o \
-		   topology.o
+		   topology.o vdso.o vdso32/
 
 obj-$(CONFIG_SMP)	+= smp.o
 obj-$(CONFIG_PA11)	+= pci-dma.o
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index c11a5bc..5effa4b 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -32,12 +32,15 @@ #include <linux/sched.h>
 #include <linux/thread_info.h>
 #include <linux/ptrace.h>
 #include <linux/hardirq.h>
+#include <linux/time.h>
 
 #include <asm/pgtable.h>
 #include <asm/ptrace.h>
 #include <asm/processor.h>
 #include <asm/pdc.h>
 #include <asm/uaccess.h>
+#include <asm/vdso_datapage.h>
+#include <asm/compat.h>
 
 #define DEFINE(sym, val) \
 	asm volatile("\n->" #sym " %0 " #val : : "i" (val))
@@ -297,5 +300,29 @@ int main(void)
 	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
 	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
 	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
+
+	/* timeval/timezone offsets for use by vdso */
+	DEFINE(TZONE_TZ_MINWEST, offsetof(struct timezone, tz_minuteswest));
+	DEFINE(TZONE_TZ_DSTTIME, offsetof(struct timezone, tz_dsttime));
+
+	/* vdso datapage offsets */
+	DEFINE(VDSO_SYSCALL_MAP32, offsetof(struct vdso_data, syscall_map_32));
+#ifdef CONFIG_64BIT
+	DEFINE(VDSO_SYSCALL_MAP64, offsetof(struct vdso_data, syscall_map_64));
+#endif
+	DEFINE(VDSO_TZ_MINUTEWEST, offsetof(struct vdso_data, tz_minuteswest));
+	DEFINE(VDSO_TZ_DSTTIME, offsetof(struct vdso_data, tz_dsttime));
+	DEFINE(VDSO_WTOM_CLOCK_SEC, offsetof(struct vdso_data, wtom_clock_sec));
+	DEFINE(VDSO_WTOM_CLOCK_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
+
+#ifdef CONFIG_64BIT
+	DEFINE(TVAL64_TV_SEC, offsetof(struct timeval, tv_sec));
+	DEFINE(TVAL64_TV_USEC, offsetof(struct timeval, tv_usec));
+	DEFINE(TVAL32_TV_SEC, offsetof(struct compat_timeval, tv_sec));
+	DEFINE(TVAL32_TV_USEC, offsetof(struct compat_timeval, tv_usec));
+#else
+	DEFINE(TVAL32_TV_SEC, offsetof(struct timeval, tv_sec));
+	DEFINE(TVAL32_TV_USEC, offsetof(struct timeval, tv_usec));
+#endif
 	return 0;
 }
diff --git a/arch/parisc/kernel/vdso.c b/arch/parisc/kernel/vdso.c
new file mode 100644
index 0000000..d419f52
--- /dev/null
+++ b/arch/parisc/kernel/vdso.c
@@ -0,0 +1,617 @@
+/*
+ *  Copyright (c) 2006 Randolph Chung <tausq@debian.org>
+ *
+ *  Based on ppc64 version by Benjamin Herrenschmidt
+ *  <benh@kernel.crashing.org>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/user.h>
+#include <linux/elf.h>
+#include <linux/security.h>
+#include <linux/bootmem.h>
+
+#include <asm/pgtable.h>
+#include <asm/system.h>
+#include <asm/processor.h>
+#include <asm/sections.h>
+#include <asm/mmu.h>
+#include <asm/mmu_context.h>
+#include <asm/vdso.h>
+#include <asm/vdso_datapage.h>
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(fmt...) printk(fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+/* Max supported size for symbol names */
+#define MAX_SYMNAME	64
+
+extern char vdso32_start, vdso32_end;
+static void *vdso32_kbase = &vdso32_start;
+unsigned int vdso32_pages;
+unsigned long vdso32_sigtramp;
+unsigned long vdso32_rt_sigtramp;
+
+#ifdef CONFIG_64BIT_BROKEN
+extern char vdso64_start, vdso64_end;
+static void *vdso64_kbase = &vdso64_start;
+unsigned int vdso64_pages;
+unsigned long vdso64_rt_sigtramp;
+#endif /* CONFIG_64BIT_BROKEN */
+
+static union {
+	struct vdso_data	data;
+	u8			page[PAGE_SIZE];
+} vdso_data_store __attribute__((__section__(".data.page_aligned")));
+struct vdso_data *vdso_data = &vdso_data_store.data;
+
+/*
+ * Some infos carried around for each of them during parsing at
+ * boot time.
+ */
+struct lib32_elfinfo
+{
+	Elf32_Ehdr	*hdr;		/* ptr to ELF */
+	Elf32_Sym	*dynsym;	/* ptr to .dynsym section */
+	unsigned long	dynsymsize;	/* size of .dynsym section */
+	char		*dynstr;	/* ptr to .dynstr section */
+	unsigned long	text;		/* offset of .text section in .so */
+};
+
+struct lib64_elfinfo
+{
+	Elf64_Ehdr	*hdr;
+	Elf64_Sym	*dynsym;
+	unsigned long	dynsymsize;
+	char		*dynstr;
+	unsigned long	text;
+};
+
+
+#ifdef __DEBUG
+static void dump_one_vdso_page(struct page *pg, struct page *upg)
+{
+	printk("kpg: %p (c:%d,f:%08lx)", __va(page_to_pfn(pg) << PAGE_SHIFT),
+	       page_count(pg),
+	       pg->flags);
+	if (upg/* && pg != upg*/) {
+		printk(" upg: %p (c:%d,f:%08lx)", __va(page_to_pfn(upg)
+						       << PAGE_SHIFT),
+		       page_count(upg),
+		       upg->flags);
+	}
+	printk("\n");
+}
+
+static void dump_vdso_pages(struct vm_area_struct * vma)
+{
+	int i;
+
+	if (!vma || test_thread_flag(TIF_32BIT)) {
+		printk("vDSO32 @ %016lx:\n", (unsigned long)vdso32_kbase);
+		for (i=0; i<vdso32_pages; i++) {
+			struct page *pg = virt_to_page(vdso32_kbase +
+						       i*PAGE_SIZE);
+			struct page *upg = (vma && vma->vm_mm) ?
+				follow_page(vma, vma->vm_start + i*PAGE_SIZE, 0)
+				: NULL;
+			dump_one_vdso_page(pg, upg);
+		}
+	}
+	if (!vma || !test_thread_flag(TIF_32BIT)) {
+		printk("vDSO64 @ %016lx:\n", (unsigned long)vdso64_kbase);
+		for (i=0; i<vdso64_pages; i++) {
+			struct page *pg = virt_to_page(vdso64_kbase +
+						       i*PAGE_SIZE);
+			struct page *upg = (vma && vma->vm_mm) ?
+				follow_page(vma, vma->vm_start + i*PAGE_SIZE, 0)
+				: NULL;
+			dump_one_vdso_page(pg, upg);
+		}
+	}
+}
+#endif /* DEBUG */
+
+/*
+ * Keep a dummy vma_close for now, it will prevent VMA merging.
+ */
+static void vdso_vma_close(struct vm_area_struct * vma)
+{
+}
+
+/*
+ * Our nopage() function, maps in the actual vDSO kernel pages, they will
+ * be mapped read-only by do_no_page(), and eventually COW'ed, either
+ * right away for an initial write access, or by do_wp_page().
+ */
+static struct page * vdso_vma_nopage(struct vm_area_struct * vma,
+				     unsigned long address, int *type)
+{
+	unsigned long offset = address - vma->vm_start;
+	struct page *pg;
+#ifdef CONFIG_64BIT_BROKEN
+	// TODO: review
+	void *vbase = (vma->vm_mm->task_size > DEFAULT_TASK_SIZE32) ?
+		vdso64_kbase : vdso32_kbase;
+#else
+	void *vbase = vdso32_kbase;
+#endif
+
+	DBG("vdso_vma_nopage(current: %s, address: %016lx, off: %lx)\n",
+	    current->comm, address, offset);
+
+	if (address < vma->vm_start || address > vma->vm_end)
+		return NOPAGE_SIGBUS;
+
+	/*
+	 * Last page is systemcfg.
+	 */
+	if ((vma->vm_end - address) <= PAGE_SIZE)
+		pg = virt_to_page(vdso_data);
+	else
+		pg = virt_to_page(vbase + offset);
+
+	get_page(pg);
+	DBG(" ->page count: %d\n", page_count(pg));
+
+	return pg;
+}
+
+static struct vm_operations_struct vdso_vmops = {
+	.close	= vdso_vma_close,
+	.nopage	= vdso_vma_nopage,
+};
+
+/*
+ * This is called from binfmt_elf, we create the special vma for the
+ * vDSO and insert it into the mm struct tree
+ */
+int arch_setup_additional_pages(struct linux_binprm *bprm,
+				int executable_stack)
+{
+	struct mm_struct *mm = current->mm;
+	struct vm_area_struct *vma;
+	unsigned long vdso_pages;
+	unsigned long vdso_base;
+	int rc;
+
+#ifdef CONFIG_64BIT_BROKEN
+	if (test_thread_flag(TIF_32BIT)) {
+		vdso_pages = vdso32_pages;
+		vdso_base = VDSO32_MBASE;
+	} else {
+		vdso_pages = vdso64_pages;
+		vdso_base = VDSO64_MBASE;
+	}
+#else
+	vdso_pages = vdso32_pages;
+	vdso_base = VDSO32_MBASE;
+#endif
+
+	current->mm->context.vdso_base = 0;
+
+	/* vDSO has a problem and was disabled, just don't "enable" it for the
+	 * process
+	 */
+	if (vdso_pages == 0)
+		return 0;
+	/* Add a page to the vdso size for the data page */
+	vdso_pages ++;
+
+	/*
+	 * pick a base address for the vDSO in process space. We try to put it
+	 * at vdso_base which is the "natural" base for it, but we might fail
+	 * and end up putting it elsewhere.
+	 */
+	down_write(&mm->mmap_sem);
+	vdso_base = get_unmapped_area(NULL, vdso_base,
+				      vdso_pages << PAGE_SHIFT, 0, 0);
+	if (IS_ERR_VALUE(vdso_base)) {
+		rc = vdso_base;
+		goto fail_mmapsem;
+	}
+
+
+	/* Allocate a VMA structure and fill it up */
+	vma = kmem_cache_zalloc(vm_area_cachep, SLAB_KERNEL);
+	if (vma == NULL) {
+		rc = -ENOMEM;
+		goto fail_mmapsem;
+	}
+	vma->vm_mm = mm;
+	vma->vm_start = vdso_base;
+	vma->vm_end = vma->vm_start + (vdso_pages << PAGE_SHIFT);
+
+	/*
+	 * our vma flags don't have VM_WRITE so by default, the process isn't
+	 * allowed to write those pages.
+	 * gdb can break that with ptrace interface, and thus trigger COW on
+	 * those pages but it's then your responsibility to never do that on
+	 * the "data" page of the vDSO or you'll stop getting kernel updates
+	 * and your nice userland gettimeofday will be totally dead.
+	 * It's fine to use that for setting breakpoints in the vDSO code
+	 * pages though
+	 */
+	vma->vm_flags = VM_READ|VM_EXEC|VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC;
+	vma->vm_flags |= mm->def_flags;
+	vma->vm_page_prot = protection_map[vma->vm_flags & 0x7];
+	vma->vm_ops = &vdso_vmops;
+
+	/* Insert new VMA */
+	rc = insert_vm_struct(mm, vma);
+	if (rc)
+		goto fail_vma;
+
+	/* Put vDSO base into mm struct and account for memory usage */
+	current->mm->context.vdso_base = vdso_base;
+	mm->total_vm += (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+	up_write(&mm->mmap_sem);
+	return 0;
+
+ fail_vma:
+	kmem_cache_free(vm_area_cachep, vma);
+ fail_mmapsem:
+	up_write(&mm->mmap_sem);
+	return rc;
+}
+
+const char *arch_vma_name(struct vm_area_struct *vma)
+{
+	if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso_base)
+		return "[vdso]";
+	return NULL;
+}
+
+
+
+static void * __init find_section32(Elf32_Ehdr *ehdr, const char *secname,
+				  unsigned long *size)
+{
+	Elf32_Shdr *sechdrs;
+	unsigned int i;
+	char *secnames;
+
+	/* Grab section headers and strings so we can tell who is who */
+	sechdrs = (void *)ehdr + ehdr->e_shoff;
+	secnames = (void *)ehdr + sechdrs[ehdr->e_shstrndx].sh_offset;
+
+	/* Find the section they want */
+	for (i = 1; i < ehdr->e_shnum; i++) {
+		if (strcmp(secnames+sechdrs[i].sh_name, secname) == 0) {
+			if (size)
+				*size = sechdrs[i].sh_size;
+			return (void *)ehdr + sechdrs[i].sh_offset;
+		}
+	}
+	*size = 0;
+	return NULL;
+}
+
+static Elf32_Sym * __init find_symbol32(struct lib32_elfinfo *lib,
+					const char *symname)
+{
+	unsigned int i;
+	char name[MAX_SYMNAME], *c;
+
+	for (i = 0; i < (lib->dynsymsize / sizeof(Elf32_Sym)); i++) {
+		if (lib->dynsym[i].st_name == 0)
+			continue;
+		strlcpy(name, lib->dynstr + lib->dynsym[i].st_name,
+			MAX_SYMNAME);
+		c = strchr(name, '@');
+		if (c)
+			*c = 0;
+		if (strcmp(symname, name) == 0)
+			return &lib->dynsym[i];
+	}
+	return NULL;
+}
+
+/* Note that we assume the section is .text and the symbol is relative to
+ * the library base
+ */
+static unsigned long __init find_function32(struct lib32_elfinfo *lib,
+					    const char *symname)
+{
+	Elf32_Sym *sym = find_symbol32(lib, symname);
+
+	if (sym == NULL) {
+		printk(KERN_WARNING "vDSO32: function %s not found !\n",
+		       symname);
+		return 0;
+	}
+	return sym->st_value - VDSO32_LBASE;
+}
+
+#ifdef CONFIG_64BIT_BROKEN
+
+static void * __init find_section64(Elf64_Ehdr *ehdr, const char *secname,
+				  unsigned long *size)
+{
+	Elf64_Shdr *sechdrs;
+	unsigned int i;
+	char *secnames;
+
+	/* Grab section headers and strings so we can tell who is who */
+	sechdrs = (void *)ehdr + ehdr->e_shoff;
+	secnames = (void *)ehdr + sechdrs[ehdr->e_shstrndx].sh_offset;
+
+	/* Find the section they want */
+	for (i = 1; i < ehdr->e_shnum; i++) {
+		if (strcmp(secnames+sechdrs[i].sh_name, secname) == 0) {
+			if (size)
+				*size = sechdrs[i].sh_size;
+			return (void *)ehdr + sechdrs[i].sh_offset;
+		}
+	}
+	if (size)
+		*size = 0;
+	return NULL;
+}
+
+static Elf64_Sym * __init find_symbol64(struct lib64_elfinfo *lib,
+					const char *symname)
+{
+	unsigned int i;
+	char name[MAX_SYMNAME], *c;
+
+	for (i = 0; i < (lib->dynsymsize / sizeof(Elf64_Sym)); i++) {
+		if (lib->dynsym[i].st_name == 0)
+			continue;
+		strlcpy(name, lib->dynstr + lib->dynsym[i].st_name,
+			MAX_SYMNAME);
+		c = strchr(name, '@');
+		if (c)
+			*c = 0;
+		if (strcmp(symname, name) == 0)
+			return &lib->dynsym[i];
+	}
+	return NULL;
+}
+
+/* Note that we assume the section is .text and the symbol is relative to
+ * the library base
+ */
+static unsigned long __init find_function64(struct lib64_elfinfo *lib,
+					    const char *symname)
+{
+	Elf64_Sym *sym = find_symbol64(lib, symname);
+
+	if (sym == NULL) {
+		printk(KERN_WARNING "vDSO64: function %s not found !\n",
+		       symname);
+		return 0;
+	}
+#ifdef VDS64_HAS_DESCRIPTORS
+	return *((u64 *)(vdso64_kbase + sym->st_value - VDSO64_LBASE)) -
+		VDSO64_LBASE;
+#else
+	return sym->st_value - VDSO64_LBASE;
+#endif
+}
+
+#endif /* CONFIG_64BIT_BROKEN */
+
+
+static __init int vdso_do_find_sections(struct lib32_elfinfo *v32,
+					struct lib64_elfinfo *v64)
+{
+	void *sect;
+
+	/*
+	 * Locate symbol tables & text section
+	 */
+
+	v32->dynsym = find_section32(v32->hdr, ".dynsym", &v32->dynsymsize);
+	v32->dynstr = find_section32(v32->hdr, ".dynstr", NULL);
+	if (v32->dynsym == NULL || v32->dynstr == NULL) {
+		printk(KERN_ERR "vDSO32: required symbol section not found\n");
+		return -1;
+	}
+	sect = find_section32(v32->hdr, ".text", NULL);
+	if (sect == NULL) {
+		printk(KERN_ERR "vDSO32: the .text section was not found\n");
+		return -1;
+	}
+	v32->text = sect - vdso32_kbase;
+
+#ifdef CONFIG_64BIT_BROKEN
+	v64->dynsym = find_section64(v64->hdr, ".dynsym", &v64->dynsymsize);
+	v64->dynstr = find_section64(v64->hdr, ".dynstr", NULL);
+	if (v64->dynsym == NULL || v64->dynstr == NULL) {
+		printk(KERN_ERR "vDSO64: required symbol section not found\n");
+		return -1;
+	}
+	sect = find_section64(v64->hdr, ".text", NULL);
+	if (sect == NULL) {
+		printk(KERN_ERR "vDSO64: the .text section was not found\n");
+		return -1;
+	}
+	v64->text = sect - vdso64_kbase;
+#endif /* CONFIG_64BIT_BROKEN */
+
+	return 0;
+}
+
+static __init void vdso_setup_trampolines(struct lib32_elfinfo *v32,
+					  struct lib64_elfinfo *v64)
+{
+	/*
+	 * Find signal trampolines
+	 */
+
+#ifdef CONFIG_64BIT_BROKEN
+	vdso64_rt_sigtramp = find_function64(v64, "__kernel_sigtramp_rt64");
+#endif
+	vdso32_sigtramp	   = find_function32(v32, "__kernel_sigtramp32");
+	vdso32_rt_sigtramp = find_function32(v32, "__kernel_sigtramp_rt32");
+}
+
+static __init int vdso_fixup_datapage(struct lib32_elfinfo *v32,
+				       struct lib64_elfinfo *v64)
+{
+	Elf32_Sym *sym32;
+#ifdef CONFIG_64BIT_BROKEN
+	Elf64_Sym *sym64;
+
+       	sym64 = find_symbol64(v64, "__kernel_datapage_offset");
+	if (sym64 == NULL) {
+		printk(KERN_ERR "vDSO64: Can't find symbol "
+		       "__kernel_datapage_offset !\n");
+		return -1;
+	}
+	*((int *)(vdso64_kbase + sym64->st_value - VDSO64_LBASE)) =
+		(vdso64_pages << PAGE_SHIFT) -
+		(sym64->st_value - VDSO64_LBASE);
+#endif /* CONFIG_64BIT_BROKEN */
+
+	sym32 = find_symbol32(v32, "__kernel_datapage_offset");
+	if (sym32 == NULL) {
+		printk(KERN_ERR "vDSO32: Can't find symbol "
+		       "__kernel_datapage_offset !\n");
+		return -1;
+	}
+	*((int *)(vdso32_kbase + (sym32->st_value - VDSO32_LBASE))) =
+		(vdso32_pages << PAGE_SHIFT) -
+		(sym32->st_value - VDSO32_LBASE);
+
+	return 0;
+}
+
+static __init int vdso_setup(void)
+{
+	struct lib32_elfinfo	v32;
+	struct lib64_elfinfo	v64;
+
+	v32.hdr = vdso32_kbase;
+#ifdef CONFIG_64BIT_BROKEN
+	v64.hdr = vdso64_kbase;
+#endif
+	if (vdso_do_find_sections(&v32, &v64))
+		return -1;
+
+	if (vdso_fixup_datapage(&v32, &v64))
+		return -1;
+
+	vdso_setup_trampolines(&v32, &v64);
+
+	return 0;
+}
+
+/*
+ * Called from setup_arch to initialize the bitmap of available
+ * syscalls in the systemcfg page
+ */
+static void __init vdso_setup_syscall_map(void)
+{
+	unsigned int i;
+	extern unsigned long *sys_call_table;
+	extern unsigned long sys_ni_syscall;
+
+
+	for (i = 0; i < __NR_Linux_syscalls; i++) {
+#ifdef CONFIG_64BIT_BROKEN
+		if (sys_call_table[i*2] != sys_ni_syscall)
+			vdso_data->syscall_map_64[i >> 5] |=
+				0x80000000UL >> (i & 0x1f);
+		if (sys_call_table[i*2+1] != sys_ni_syscall)
+			vdso_data->syscall_map_32[i >> 5] |=
+				0x80000000UL >> (i & 0x1f);
+#else /* CONFIG_64BIT_BROKEN */
+		if (sys_call_table[i] != sys_ni_syscall)
+			vdso_data->syscall_map_32[i >> 5] |=
+				0x80000000UL >> (i & 0x1f);
+#endif /* CONFIG_64BIT_BROKEN */
+	}
+}
+
+
+void __init vdso_init(void)
+{
+	int i;
+
+#ifdef CONFIG_64BIT_BROKEN
+	/*
+	 * Calculate the size of the 64 bits vDSO
+	 */
+	vdso64_pages = (&vdso64_end - &vdso64_start) >> PAGE_SHIFT;
+	DBG("vdso64_kbase: %p, 0x%x pages\n", vdso64_kbase, vdso64_pages);
+#endif /* CONFIG_64BIT_BROKEN */
+
+
+	/*
+	 * Calculate the size of the 32 bits vDSO
+	 */
+	vdso32_pages = (&vdso32_end - &vdso32_start) >> PAGE_SHIFT;
+	DBG("vdso32_kbase: %p, 0x%x pages\n", vdso32_kbase, vdso32_pages);
+
+
+	/*
+	 * Setup the syscall map in the vDOS
+	 */
+	vdso_setup_syscall_map();
+	/*
+	 * Initialize the vDSO images in memory, that is do necessary
+	 * fixups of vDSO symbols, locate trampolines, etc...
+	 */
+	if (vdso_setup()) {
+		printk(KERN_ERR "vDSO setup failure, not enabled !\n");
+		vdso32_pages = 0;
+#ifdef CONFIG_64BIT_BROKEN
+		vdso64_pages = 0;
+#endif
+		return;
+	}
+
+	/* Make sure pages are in the correct state */
+	for (i = 0; i < vdso32_pages; i++) {
+		struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE);
+		ClearPageReserved(pg);
+		get_page(pg);
+
+	}
+#ifdef CONFIG_64BIT_BROKEN
+	for (i = 0; i < vdso64_pages; i++) {
+		struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE);
+		ClearPageReserved(pg);
+		get_page(pg);
+	}
+#endif /* CONFIG_64BIT_BROKEN */
+
+	get_page(virt_to_page(vdso_data));
+}
+
+int in_gate_area_no_task(unsigned long addr)
+{
+	return 0;
+}
+
+int in_gate_area(struct task_struct *task, unsigned long addr)
+{
+	return 0;
+}
+
+struct vm_area_struct *get_gate_vma(struct task_struct *tsk)
+{
+	return NULL;
+}
+
diff --git a/arch/parisc/kernel/vdso32/Makefile b/arch/parisc/kernel/vdso32/Makefile
new file mode 100644
index 0000000..89ab197
--- /dev/null
+++ b/arch/parisc/kernel/vdso32/Makefile
@@ -0,0 +1,41 @@
+
+# List of files in the vdso, has to be asm only for now
+
+obj-vdso32 = gettimeofday.o note.o datapage.o sigtramp.o
+
+# Build rules
+
+#ifneq ($(CONFIG_64BIT),y)
+#CROSS32CC := $(CC)
+#endif
+
+targets := $(obj-vdso32) vdso32.so
+obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
+
+
+EXTRA_CFLAGS := -shared -s -fno-common -fno-builtin
+EXTRA_CFLAGS += -nostdlib -Wl,-soname=linux-vdso32.so.1 \
+		$(call ld-option, -Wl$(comma)--hash-style=sysv)
+EXTRA_AFLAGS := -D__VDSO32__ -s
+
+obj-y += vdso32_wrapper.o
+extra-y += vdso32.lds
+CPPFLAGS_vdso32.lds += -P -C -Uhppa
+
+# Force dependency (incbin is bad)
+$(obj)/vdso32_wrapper.o : $(obj)/vdso32.so
+
+# link rule for the .so file, .lds has to be first
+$(obj)/vdso32.so: $(src)/vdso32.lds $(obj-vdso32)
+	$(call if_changed,vdso32ld)
+
+# assembly rules for the .S files
+$(obj-vdso32): %.o: %.S
+	$(call if_changed_dep,vdso32as)
+
+# actual build commands
+quiet_cmd_vdso32ld = VDSO32L $@
+      cmd_vdso32ld = $(CROSS32CC) $(c_flags) -Wl,-T $^ -o $@
+quiet_cmd_vdso32as = VDSO32A $@
+      cmd_vdso32as = $(CROSS32CC) $(a_flags) -c -o $@ $<
+
diff --git a/arch/parisc/kernel/vdso32/datapage.S b/arch/parisc/kernel/vdso32/datapage.S
new file mode 100644
index 0000000..e9fdc59
--- /dev/null
+++ b/arch/parisc/kernel/vdso32/datapage.S
@@ -0,0 +1,35 @@
+/*
+ * Access to the shared data page by the vDSO & syscall map
+ *
+ * Copyright (C) 2006 Randolph Chung <tausq@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#include <asm/processor.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+#include <asm/vdso.h>
+
+	.text
+	.globl __get_datapage
+	.type __get_datapage, @function
+__get_datapage:
+	.proc
+	.callinfo NO_CALLS
+	.entry
+	/* We don't want that exposed or overridable as we want other objects
+	 * to be able to bl directly to here
+	 */
+	bl	.+12, %r1
+	depi	0, 31, 2, %r1
+	.global	__kernel_datapage_offset;
+__kernel_datapage_offset:
+	.long	0
+1:
+	bv	%r0(%r2)
+	ldw	0(%r1), %r28
+	.exit
+	.procend
diff --git a/arch/parisc/kernel/vdso32/gettimeofday.S b/arch/parisc/kernel/vdso32/gettimeofday.S
new file mode 100644
index 0000000..2cd753c
--- /dev/null
+++ b/arch/parisc/kernel/vdso32/gettimeofday.S
@@ -0,0 +1,64 @@
+/*
+ * Userland implementation of gettimeofday() for 32 bits processes
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <asm/processor.h>
+#include <asm/vdso.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+
+	.text
+/*
+ * Exact prototype of gettimeofday
+ *
+ * int __kernel_gettimeofday(struct timeval *tv, struct timezone *tz);
+ *
+ */
+	.globl __kernel_gettimeofday
+	.type __kernel_gettimeofday, @function
+__kernel_gettimeofday:
+	.proc
+	.callinfo NO_CALLS
+	.entry
+	copy	%r2, %r1
+	bl	__get_datapage, %r2
+	nop
+	copy	%r1, %r2
+	ldw	VDSO_WTOM_CLOCK_SEC(%r28), %r20
+	ldw	VDSO_WTOM_CLOCK_NSEC(%r28), %r21
+	stw	%r20, TVAL32_TV_SEC(%r26)
+	cmpib,=	0, %r25, 1f		 /* Check if tz is NULL */
+	stw	%r21, TVAL32_TV_USEC(%r26) /* delay slot */
+
+	ldw	VDSO_TZ_MINUTEWEST(%r28), %r20
+	ldw	VDSO_TZ_DSTTIME(%r28), %r22
+	stw	%r20, TZONE_TZ_MINWEST(%r25)
+	stw	%r21, TZONE_TZ_DSTTIME(%r25)
+
+1:
+  	bv,n %r0(%r2)
+	.exit
+	.procend
+
+
+/*
+ * Exact prototype of clock_gettime()
+ *
+ * int __kernel_clock_gettime(clockid_t clock_id, struct timespec *tp);
+ *
+ */
+V_FUNCTION_BEGIN(__kernel_clock_gettime)
+	.globl __kernel_clock_gettime
+	.type __kernel_clock_gettime, @function
+__kernel_clock_gettime:
+	.proc
+	.callinfo NO_CALLS
+	.entry
+	bv,n %r0(%r2)
+	.exit
+	.procend
+
diff --git a/arch/parisc/kernel/vdso32/note.S b/arch/parisc/kernel/vdso32/note.S
new file mode 100644
index 0000000..d4b5be4
--- /dev/null
+++ b/arch/parisc/kernel/vdso32/note.S
@@ -0,0 +1,25 @@
+/*
+ * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text.
+ * Here we can supply some information useful to userland.
+ */
+
+#include <linux/uts.h>
+#include <linux/version.h>
+
+#define ASM_ELF_NOTE_BEGIN(name, flags, vendor, type)			      \
+	.section name, flags;						      \
+	.balign 4;							      \
+	.long 1f - 0f;		/* name length */			      \
+	.long 3f - 2f;		/* data length */			      \
+	.long type;		/* note type */				      \
+0:	.asciz vendor;		/* vendor name */			      \
+1:	.balign 4;							      \
+2:
+
+#define ASM_ELF_NOTE_END						      \
+3:	.balign 4;		/* pad out section */			      \
+	.previous
+
+	ASM_ELF_NOTE_BEGIN(".note.kernel-version", "a", UTS_SYSNAME, 0)
+	.long LINUX_VERSION_CODE
+	ASM_ELF_NOTE_END
diff --git a/arch/parisc/kernel/vdso32/sigtramp.S b/arch/parisc/kernel/vdso32/sigtramp.S
new file mode 100644
index 0000000..005cfe2
--- /dev/null
+++ b/arch/parisc/kernel/vdso32/sigtramp.S
@@ -0,0 +1,167 @@
+/*
+ * Signal trampolines for 32 bits processes.
+ *
+ * Copyright (C) 2006 Randolph Chung <tausq@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <asm/processor.h>
+#include <asm/unistd.h>
+#include <asm/vdso.h>
+
+	.text
+
+/* The nop here is a hack.  The dwarf2 unwind routines subtract 1 from
+   the return address to get an address in the middle of the presumed
+   call instruction.  Since we don't have a call here, we artifically
+   extend the range covered by the unwind info by adding a nop before
+   the real start.  */
+	nop
+	.globl __kernel_sigtramp_rt32
+	.type __kernel_sigtramp_rt32, @function
+__kernel_sigtramp_rt32:
+	.proc
+	.callinfo NO_CALLS
+	.entry
+.Lsigrt_start = . - 4
+	ble  0x100(%sr2, %r0)
+	ldi  __NR_rt_sigreturn, %r20
+.Lsigrt_end:
+	.exit
+	.procend
+
+	.section .eh_frame,"a",@progbits
+
+/* Register r1 can be found at offset 4 of a pt_regs structure.
+   A pointer to the pt_regs is stored in memory at the old sp plus PTREGS.  */
+#define cfa_save \
+  .byte 0x0f;			/* DW_CFA_def_cfa_expression */		\
+  .uleb128 9f - 1f;		/*   length */				\
+1:									\
+  .byte 0x71; .sleb128 PTREGS;	/*     DW_OP_breg1 */			\
+  .byte 0x06;			/*     DW_OP_deref */			\
+  .byte 0x23; .uleb128 RSIZE;	/*     DW_OP_plus_uconst */		\
+  .byte 0x06;			/*     DW_OP_deref */			\
+9:
+
+/* Register REGNO can be found at offset OFS of a pt_regs structure.
+   A pointer to the pt_regs is stored in memory at the old sp plus PTREGS.  */
+#define rsave(regno, ofs) \
+  .byte 0x10;			/* DW_CFA_expression */			\
+  .uleb128 regno;		/*   regno */				\
+  .uleb128 9f - 1f;		/*   length */				\
+1:									\
+  .byte 0x71; .sleb128 PTREGS;	/*     DW_OP_breg1 */			\
+  .byte 0x06;			/*     DW_OP_deref */			\
+  .ifne ofs;								\
+    .byte 0x23; .uleb128 ofs;	/*     DW_OP_plus_uconst */		\
+  .endif;								\
+9:
+
+/* This is where the pt_regs pointer can be found on the stack.  */
+#define PTREGS 64+28
+
+/* Size of regs.  */
+#define RSIZE 4
+
+/* Describe where general purpose regs are saved.  */
+#define EH_FRAME_GEN \
+  cfa_save;								\
+  rsave ( 0,  0*RSIZE);							\
+  rsave ( 2,  2*RSIZE);							\
+  rsave ( 3,  3*RSIZE);							\
+  rsave ( 4,  4*RSIZE);							\
+  rsave ( 5,  5*RSIZE);							\
+  rsave ( 6,  6*RSIZE);							\
+  rsave ( 7,  7*RSIZE);							\
+  rsave ( 8,  8*RSIZE);							\
+  rsave ( 9,  9*RSIZE);							\
+  rsave (10, 10*RSIZE);							\
+  rsave (11, 11*RSIZE);							\
+  rsave (12, 12*RSIZE);							\
+  rsave (13, 13*RSIZE);							\
+  rsave (14, 14*RSIZE);							\
+  rsave (15, 15*RSIZE);							\
+  rsave (16, 16*RSIZE);							\
+  rsave (17, 17*RSIZE);							\
+  rsave (18, 18*RSIZE);							\
+  rsave (19, 19*RSIZE);							\
+  rsave (20, 20*RSIZE);							\
+  rsave (21, 21*RSIZE);							\
+  rsave (22, 22*RSIZE);							\
+  rsave (23, 23*RSIZE);							\
+  rsave (24, 24*RSIZE);							\
+  rsave (25, 25*RSIZE);							\
+  rsave (26, 26*RSIZE);							\
+  rsave (27, 27*RSIZE);							\
+  rsave (28, 28*RSIZE);							\
+  rsave (29, 29*RSIZE);							\
+  rsave (30, 30*RSIZE);							\
+  rsave (31, 31*RSIZE);							\
+  rsave (67, 32*RSIZE);		/* ap, used as temp for nip */		\
+  rsave (65, 36*RSIZE);		/* lr */				\
+  rsave (70, 38*RSIZE)		/* cr */
+
+/* Describe where the FP regs are saved.  */
+#define EH_FRAME_FP \
+  rsave (32, 48*RSIZE +  0*8);						\
+  rsave (33, 48*RSIZE +  1*8);						\
+  rsave (34, 48*RSIZE +  2*8);						\
+  rsave (35, 48*RSIZE +  3*8);						\
+  rsave (36, 48*RSIZE +  4*8);						\
+  rsave (37, 48*RSIZE +  5*8);						\
+  rsave (38, 48*RSIZE +  6*8);						\
+  rsave (39, 48*RSIZE +  7*8);						\
+  rsave (40, 48*RSIZE +  8*8);						\
+  rsave (41, 48*RSIZE +  9*8);						\
+  rsave (42, 48*RSIZE + 10*8);						\
+  rsave (43, 48*RSIZE + 11*8);						\
+  rsave (44, 48*RSIZE + 12*8);						\
+  rsave (45, 48*RSIZE + 13*8);						\
+  rsave (46, 48*RSIZE + 14*8);						\
+  rsave (47, 48*RSIZE + 15*8);						\
+  rsave (48, 48*RSIZE + 16*8);						\
+  rsave (49, 48*RSIZE + 17*8);						\
+  rsave (50, 48*RSIZE + 18*8);						\
+  rsave (51, 48*RSIZE + 19*8);						\
+  rsave (52, 48*RSIZE + 20*8);						\
+  rsave (53, 48*RSIZE + 21*8);						\
+  rsave (54, 48*RSIZE + 22*8);						\
+  rsave (55, 48*RSIZE + 23*8);						\
+  rsave (56, 48*RSIZE + 24*8);						\
+  rsave (57, 48*RSIZE + 25*8);						\
+  rsave (58, 48*RSIZE + 26*8);						\
+  rsave (59, 48*RSIZE + 27*8);						\
+  rsave (60, 48*RSIZE + 28*8);						\
+  rsave (61, 48*RSIZE + 29*8);						\
+  rsave (62, 48*RSIZE + 30*8);						\
+  rsave (63, 48*RSIZE + 31*8)
+
+.Lcie:
+	.long .Lcie_end - .Lcie_start
+.Lcie_start:
+	.long 0			/* CIE ID */
+	.byte 1			/* Version number */
+	.string "zRS"		/* NUL-terminated augmentation string */
+	.uleb128 4		/* Code alignment factor */
+	.sleb128 -4		/* Data alignment factor */
+	.byte 2			/* Return address register column, ap */
+	.uleb128 1		/* Augmentation value length */
+	.byte 0x1b		/* DW_EH_PE_pcrel | DW_EH_PE_sdata4. */
+	.byte 0x0c,30,0		/* DW_CFA_def_cfa: r30 ofs 0 */
+	.balign 4
+.Lcie_end:
+
+	.long .Lfde0_end - .Lfde0_start
+.Lfde0_start:
+	.long .Lfde0_start - .Lcie	/* CIE pointer. */
+	.long .Lsigrt_start - .		/* PC start, length */
+	.long .Lsigrt_end - .Lsigrt_start
+	.uleb128 0			/* Augmentation */
+	EH_FRAME_GEN
+	EH_FRAME_FP
+	.balign 4
+.Lfde0_end:
diff --git a/arch/parisc/kernel/vdso32/vdso32.lds.S b/arch/parisc/kernel/vdso32/vdso32.lds.S
new file mode 100644
index 0000000..f3e6966
--- /dev/null
+++ b/arch/parisc/kernel/vdso32/vdso32.lds.S
@@ -0,0 +1,111 @@
+
+/*
+ * This is the infamous ld script for the 32 bits vdso
+ * library
+ */
+#include <asm/vdso.h>
+
+/* Default link addresses for the vDSOs */
+OUTPUT_FORMAT("elf32-hppa-linux")
+OUTPUT_ARCH(hppa)
+ENTRY(_start)
+
+SECTIONS
+{
+  . = VDSO32_LBASE + SIZEOF_HEADERS;
+  .hash           : { *(.hash) }			:text
+  .gnu.hash       : { *(.gnu.hash) }
+  .dynsym         : { *(.dynsym) }
+  .dynstr         : { *(.dynstr) }
+  .gnu.version    : { *(.gnu.version) }
+  .gnu.version_d  : { *(.gnu.version_d) }
+  .gnu.version_r  : { *(.gnu.version_r) }
+
+  .note		  : { *(.note.*) } 			:text	:note
+
+  . = ALIGN (16);
+  .text :
+  {
+    *(.text .stub .text.* .gnu.linkonce.t.*)
+  }
+  PROVIDE (__etext = .);
+  PROVIDE (_etext = .);
+  PROVIDE (etext = .);
+
+  /* Other stuff is appended to the text segment: */
+  .rodata		: { *(.rodata .rodata.* .gnu.linkonce.r.*) }
+  .rodata1		: { *(.rodata1) }
+
+  .eh_frame_hdr		: { *(.eh_frame_hdr) }		:text	:eh_frame_hdr
+  .eh_frame		: { KEEP (*(.eh_frame)) }	:text
+  .gcc_except_table	: { *(.gcc_except_table) }
+  .fixup		: { *(.fixup) }
+
+  .dynamic		: { *(.dynamic) }		:text	:dynamic
+  .plt : { *(.plt) }
+  .got : { *(.got) }
+
+  _end = .;
+  __end = .;
+  PROVIDE (end = .);
+
+
+  /* Stabs debugging sections are here too
+   */
+  .stab 0 : { *(.stab) }
+  .stabstr 0 : { *(.stabstr) }
+  .stab.excl 0 : { *(.stab.excl) }
+  .stab.exclstr 0 : { *(.stab.exclstr) }
+  .stab.index 0 : { *(.stab.index) }
+  .stab.indexstr 0 : { *(.stab.indexstr) }
+  .comment 0 : { *(.comment) }
+  .debug 0 : { *(.debug) }
+  .line 0 : { *(.line) }
+
+  .debug_srcinfo 0 : { *(.debug_srcinfo) }
+  .debug_sfnames 0 : { *(.debug_sfnames) }
+
+  .debug_aranges 0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+
+  .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
+  .debug_abbrev 0 : { *(.debug_abbrev) }
+  .debug_line 0 : { *(.debug_line) }
+  .debug_frame 0 : { *(.debug_frame) }
+  .debug_str 0 : { *(.debug_str) }
+  .debug_loc 0 : { *(.debug_loc) }
+  .debug_macinfo 0 : { *(.debug_macinfo) }
+
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames 0 : { *(.debug_varnames) }
+
+  /DISCARD/ : { *(.note.GNU-stack) }
+  /DISCARD/ : { *(.data .data.* .gnu.linkonce.d.* .sdata*) }
+  /DISCARD/ : { *(.bss .sbss .dynbss .dynsbss) }
+}
+
+
+PHDRS
+{
+  text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */
+  note PT_NOTE FLAGS(4); /* PF_R */
+  dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
+  eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */
+}
+
+
+/*
+ * This controls what symbols we export from the DSO.
+ */
+VERSION
+{
+  VDSO_VERSION_STRING {
+    global:
+	__kernel_datapage_offset; /* Has to be there for the kernel to find */
+	__kernel_gettimeofday;
+	__kernel_clock_gettime;
+    local: *;
+  };
+}
diff --git a/arch/parisc/kernel/vdso32/vdso32_wrapper.S b/arch/parisc/kernel/vdso32/vdso32_wrapper.S
new file mode 100644
index 0000000..edd9e91
--- /dev/null
+++ b/arch/parisc/kernel/vdso32/vdso32_wrapper.S
@@ -0,0 +1,13 @@
+#include <linux/init.h>
+#include <asm/page.h>
+
+	.section ".data.page_aligned"
+
+	.globl vdso32_start, vdso32_end
+	.balign PAGE_SIZE
+vdso32_start:
+	.incbin "arch/parisc/kernel/vdso32/vdso32.so"
+	.balign PAGE_SIZE
+vdso32_end:
+
+	.previous
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 0e449f9..06c74de 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -29,6 +29,7 @@ #include <asm/tlb.h>
 #include <asm/pdc_chassis.h>
 #include <asm/mmzone.h>
 #include <asm/sections.h>
+#include <asm/vdso.h>
 
 DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 
@@ -541,6 +542,8 @@ #ifdef CONFIG_DEBUG_KERNEL /* double-san
 	       _text, _etext,
 	       ((unsigned long)_etext - (unsigned long)_text) >> 10);
 #endif
+
+	vdso_init();
 }
 
 unsigned long *empty_zero_page __read_mostly;
diff --git a/include/asm-parisc/auxvec.h b/include/asm-parisc/auxvec.h
index 9c3ac4b..d49902d 100644
--- a/include/asm-parisc/auxvec.h
+++ b/include/asm-parisc/auxvec.h
@@ -1,4 +1,9 @@
 #ifndef __ASMPARISC_AUXVEC_H
 #define __ASMPARISC_AUXVEC_H
 
+/* The vDSO location. We have to use the same value as x86 for glibc's
+ * sake :-)
+ */
+#define AT_SYSINFO_EHDR		33
+
 #endif
diff --git a/include/asm-parisc/cacheflush.h b/include/asm-parisc/cacheflush.h
index 2bc41f2..b62563d 100644
--- a/include/asm-parisc/cacheflush.h
+++ b/include/asm-parisc/cacheflush.h
@@ -83,13 +83,13 @@ static inline void flush_cache_range(str
 {
 	int sr3;
 
-	if (!vma->vm_mm->context) {
+	if (!vma->vm_mm->context.space_id) {
 		BUG();
 		return;
 	}
 
 	sr3 = mfsp(3);
-	if (vma->vm_mm->context == sr3) {
+	if (vma->vm_mm->context.space_id == sr3) {
 		flush_user_dcache_range(start,end);
 		flush_user_icache_range(start,end);
 	} else {
@@ -149,7 +149,7 @@ flush_user_cache_page_non_current(struct
 
 	/* make us current */
 	mtctl(__pa(vma->vm_mm->pgd), 25);
-	mtsp(vma->vm_mm->context, 3);
+	mtsp(vma->vm_mm->context.space_id, 3);
 
 	flush_user_dcache_page(vmaddr);
 	if(vma->vm_flags & VM_EXEC)
@@ -164,7 +164,7 @@ flush_user_cache_page_non_current(struct
 static inline void
 __flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
 {
-	if (likely(vma->vm_mm->context == mfsp(3))) {
+	if (likely(vma->vm_mm->context.space_id == mfsp(3))) {
 		flush_user_dcache_page(vmaddr);
 		if (vma->vm_flags & VM_EXEC)
 			flush_user_icache_page(vmaddr);
@@ -176,7 +176,7 @@ __flush_cache_page(struct vm_area_struct
 static inline void
 flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn)
 {
-	BUG_ON(!vma->vm_mm->context);
+	BUG_ON(!vma->vm_mm->context.space_id);
 
 	if (likely(translation_exists(vma, vmaddr, pfn)))
 		__flush_cache_page(vma, vmaddr);
diff --git a/include/asm-parisc/elf.h b/include/asm-parisc/elf.h
index adea65f..81e232d 100644
--- a/include/asm-parisc/elf.h
+++ b/include/asm-parisc/elf.h
@@ -297,6 +297,17 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N
 
 struct task_struct;
 
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
+struct linux_binprm;
+extern int arch_setup_additional_pages(struct linux_binprm *bprm,
+				       int executable_stack);
+#define VDSO_AUX_ENT(a,b) NEW_AUX_ENT(a,b);
+
+#define ARCH_DLINFO						\
+do {								\
+	NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso_base); \
+} while (0)
+
 extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *);
 #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
 
diff --git a/include/asm-parisc/mmu.h b/include/asm-parisc/mmu.h
index 6a310cf..b9175c9 100644
--- a/include/asm-parisc/mmu.h
+++ b/include/asm-parisc/mmu.h
@@ -1,7 +1,9 @@
 #ifndef _PARISC_MMU_H_
 #define _PARISC_MMU_H_
 
-/* On parisc, we store the space id here */
-typedef unsigned long mm_context_t;
+typedef struct {
+	unsigned long space_id;
+	unsigned long vdso_base;
+} mm_context_t;
 
 #endif /* _PARISC_MMU_H_ */
diff --git a/include/asm-parisc/mmu_context.h b/include/asm-parisc/mmu_context.h
index 9c05836..0fa9679 100644
--- a/include/asm-parisc/mmu_context.h
+++ b/include/asm-parisc/mmu_context.h
@@ -21,24 +21,24 @@ init_new_context(struct task_struct *tsk
 {
 	BUG_ON(atomic_read(&mm->mm_users) != 1);
 
-	mm->context = alloc_sid();
+	mm->context.space_id = alloc_sid();
 	return 0;
 }
 
 static inline void
 destroy_context(struct mm_struct *mm)
 {
-	free_sid(mm->context);
-	mm->context = 0;
+	free_sid(mm->context.space_id);
+	mm->context.space_id = 0;
 }
 
 static inline void load_context(mm_context_t context)
 {
-	mtsp(context, 3);
+	mtsp(context.space_id, 3);
 #if SPACEID_SHIFT == 0
-	mtctl(context << 1,8);
+	mtctl(context.space_id << 1,8);
 #else
-	mtctl(context >> (SPACEID_SHIFT - 1),8);
+	mtctl(context.space_id >> (SPACEID_SHIFT - 1),8);
 #endif
 }
 
@@ -65,8 +65,8 @@ static inline void activate_mm(struct mm
 
 	BUG_ON(next == &init_mm); /* Should never happen */
 
-	if (next->context == 0)
-	    next->context = alloc_sid();
+	if (next->context.space_id == 0)
+	    next->context.space_id = alloc_sid();
 
 	switch_mm(prev,next,current);
 }
diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h
index dcf9047..091048d 100644
--- a/include/asm-parisc/page.h
+++ b/include/asm-parisc/page.h
@@ -12,9 +12,11 @@ # define PAGE_SHIFT	16
 #else
 # error "unknown default kernel page size"
 #endif
-#define PAGE_SIZE	(1UL << PAGE_SHIFT)
+#define PAGE_SIZE	(1 << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
+/* We do define AT_SYSINFO_EHDR but don't use the gate mechanism */
+#define __HAVE_ARCH_GATE_AREA		1
 
 #ifndef __ASSEMBLY__
 
diff --git a/include/asm-parisc/processor.h b/include/asm-parisc/processor.h
index fd7866d..74ba37b 100644
--- a/include/asm-parisc/processor.h
+++ b/include/asm-parisc/processor.h
@@ -181,7 +181,7 @@ typedef unsigned int elf_caddr_t;
 
 #define start_thread_som(regs, new_pc, new_sp) do {	\
 	unsigned long *sp = (unsigned long *)new_sp;	\
-	__u32 spaceid = (__u32)current->mm->context;	\
+	__u32 spaceid = (__u32)current->mm->context.space_id;	\
 	unsigned long pc = (unsigned long)new_pc;	\
 	/* offset pc for priv. level */			\
 	pc |= 3;					\
@@ -285,7 +285,7 @@ #endif
 
 #define start_thread(regs, new_pc, new_sp) do {		\
 	elf_addr_t *sp = (elf_addr_t *)new_sp;		\
-	__u32 spaceid = (__u32)current->mm->context;	\
+	__u32 spaceid = (__u32)current->mm->context.space_id;	\
 	elf_addr_t pc = (elf_addr_t)new_pc | 3;		\
 	elf_caddr_t *argv = (elf_caddr_t *)bprm->exec + 1;	\
 							\
diff --git a/include/asm-parisc/tlbflush.h b/include/asm-parisc/tlbflush.h
index f662e83..5625b76 100644
--- a/include/asm-parisc/tlbflush.h
+++ b/include/asm-parisc/tlbflush.h
@@ -47,9 +47,9 @@ #ifdef CONFIG_SMP
 	flush_tlb_all();
 #else
 	if (mm) {
-		if (mm->context != 0)
-			free_sid(mm->context);
-		mm->context = alloc_sid();
+		if (mm->context.space_id != 0)
+			free_sid(mm->context.space_id);
+		mm->context.space_id = alloc_sid();
 		if (mm == current->active_mm)
 			load_context(mm->context);
 	}
@@ -66,7 +66,7 @@ static inline void flush_tlb_page(struct
 	/* For one page, it's not worth testing the split_tlb variable */
 
 	mb();
-	mtsp(vma->vm_mm->context,1);
+	mtsp(vma->vm_mm->context.space_id,1);
 	purge_tlb_start();
 	pdtlb(addr);
 	pitlb(addr);
@@ -82,7 +82,7 @@ static inline void flush_tlb_range(struc
 	if (npages >= 512)  /* 2MB of space: arbitrary, should be tuned */
 		flush_tlb_all();
 	else {
-		mtsp(vma->vm_mm->context,1);
+		mtsp(vma->vm_mm->context.space_id,1);
 		purge_tlb_start();
 		if (split_tlb) {
 			while (npages--) {
diff --git a/include/asm-parisc/vdso.h b/include/asm-parisc/vdso.h
new file mode 100644
index 0000000..9fe98c9
--- /dev/null
+++ b/include/asm-parisc/vdso.h
@@ -0,0 +1,44 @@
+#ifndef __PARISC_VDSO_H__
+#define __PARISC_VDSO_H__
+
+#ifdef __KERNEL__
+
+/* Default link addresses for the vDSOs */
+#define VDSO32_LBASE	0x80000000
+#define VDSO64_LBASE	0x80000000
+
+/* Default map addresses */
+#define VDSO32_MBASE	VDSO32_LBASE
+#define VDSO64_MBASE	VDSO64_LBASE
+
+#define VDSO_VERSION_STRING	LINUX_2.6.19
+
+#ifndef __ASSEMBLY__
+
+extern unsigned int vdso64_pages;
+extern unsigned int vdso32_pages;
+
+/* Offsets relative to thread->vdso_base */
+extern unsigned long vdso64_rt_sigtramp;
+extern unsigned long vdso32_sigtramp;
+extern unsigned long vdso32_rt_sigtramp;
+
+extern void vdso_init(void);
+
+#else /* __ASSEMBLY__ */
+
+#define V_FUNCTION_BEGIN(name)		\
+	.globl name;			\
+	.type name,@function; 		\
+	name:				\
+
+#define V_FUNCTION_END(name)		\
+	.size name,.-name;
+
+#define V_LOCAL_FUNC(name) (name)
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __KERNEL__ */
+
+#endif /* __PARISC_VDSO_H__ */
diff --git a/include/asm-parisc/vdso_datapage.h b/include/asm-parisc/vdso_datapage.h
new file mode 100644
index 0000000..b79879a
--- /dev/null
+++ b/include/asm-parisc/vdso_datapage.h
@@ -0,0 +1,43 @@
+#ifndef _VDSO_DATAPAGE_H
+#define _VDSO_DATAPAGE_H
+#ifdef __KERNEL__
+
+/*
+ * Copyright (C) 2006 Randolph Chung <tausq@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2.
+ */
+
+
+#ifndef __ASSEMBLY__
+
+#include <linux/unistd.h>
+
+#define SYSCALL_MAP_SIZE      ((__NR_Linux_syscalls + 31) / 32)
+
+struct vdso_data {
+	__u64 tb_orig_stamp;		/* Timebase at boot		0x30 */
+	__u64 tb_ticks_per_sec;		/* Timebase tics / sec		0x38 */
+	__u64 tb_to_xs;			/* Inverse of TB to 2^20	0x40 */
+	__u64 stamp_xsec;		/*				0x48 */
+	__u32 tb_update_count;		/* Timebase atomicity ctr	0x50 */
+	__u32 tz_minuteswest;		/* Minutes west of Greenwich	0x58 */
+	__u32 tz_dsttime;		/* Type of dst correction	0x5C */
+	__s32 wtom_clock_sec;			/* Wall to monotonic clock */
+	__s32 wtom_clock_nsec;
+#ifdef CONFIG_64BIT
+   	__u32 syscall_map_64[SYSCALL_MAP_SIZE]; /* map of syscalls  */
+#endif
+   	__u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */
+};
+
+#ifdef __KERNEL__
+extern struct vdso_data *vdso_data;
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __KERNEL__ */
+#endif /* _VDSO_DATAPAGE_H */

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Subject: Re: [parisc-linux] [patch] Remove magic constant from gas/tc-hppa.c
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Le dimanche 22 octobre 2006 =C3=A0 22:14 -0400, John David Anglin a =C3=A9c=
rit :
> > > Yes, but it's wrong.  I'm not worried about changing it since
> > > there isn't really a 64-bit netbsd target.  Also, GCC doesn't
> > > support hppa64-netbsd.
> >=20
> > Fair enough. =3D)  I've so far been trying to preserve behaviour.  I'm
> > happy to change it to just elf64-hppa for now if that's better.

In exploring how other arches handle unifying 32 and 64 bit binutils, it
looks like they rely on a command line switch to get things set early
enough.  output_file_create calls TARGET_FORMAT before the asm file is
read, so we can't use the .LEVEL instruction to tell is if we're
elf32-hppa or elf64-hppa.

It looks like the best thing to do is to support the -march parameter,
similar to gcc.  gcc supports:

-march=3D{1.0,1.1,2.0}

Should I add 2.0w to this for 64bit?  Talking about it with Randolph on
IRC, he pointed out that hppa2.0w-hp-hpux11.11 targets a 32 bit
userspace on a wide kernel.

HP/UX as supports the syntax:

+DAarchitecture

But I'd rather stick with something that feels more like the rest of the
arches and toolchain.

Thanks!

--
Jeff Bailey - http://www.raspberryginger.com/jbailey/

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Subject: Re: [parisc-linux] [patch] Remove magic constant from gas/tc-hppa.c
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> It looks like the best thing to do is to support the -march parameter,
> similar to gcc.  gcc supports:
> 
> -march={1.0,1.1,2.0}
> 
> Should I add 2.0w to this for 64bit?  Talking about it with Randolph on
> IRC, he pointed out that hppa2.0w-hp-hpux11.11 targets a 32 bit
> userspace on a wide kernel.

Right.  The convention is that the first hunk refers to the kernel
architecture.  Back in the old days, the tools only supported a 32-bit
userspace.  When the 64-bit tools were developed, a way to select the
64-bit userspace was needed.  hppa64 was chosen for 64-bit userspace.
So, config.guess now changes hppa2.0w to hppa64 if it detects ${CC}
is generating 64-bit code.

This was obviously the easy way forward and probably hppa64 should
never have been invented.  However, it was, so I think we are stuck
with it.  If merging archs can be done, then it will just become
a synonym for hppa2.0w.  The downside in doing this is that the
arch needs to be specified when packages are configured.

I think that adding -march={1.0, 1.1, 2.0, 2.0w} to the command
line options is reasonable.  This together with .level could be
used to select output format and arch.  I think .level overrides
the command line option (warning needed).  .level should appear
before any other directives.  If we need to become more specific
about the ABI, then an -mabi option could be added.

The tricky part is handling both som and elf64 for hpux, and elf32
and elf64 for linux.  It will take a fair bit of work to merge the
bfd stuff.  It may be difficult to do this in a clean manner given
that the elf and som targets are quite different.

I think the best plan would be to do the various merges before
adding the option to select the arch at runtime.

> HP/UX as supports the syntax:
> 
> +DAarchitecture
> 
> But I'd rather stick with something that feels more like the rest of the
> arches and toolchain.

The big problem in supporting multiple ABIs lies in GCC.  The som and
elf64 targets are essentially incompatible.  There are a number of macros
which change GCC's behavior depending on whether they are defined or not
defined.  We have a number of macros that need to be defined in one case
and not in the other.  Jeff Law used to say it wasn't worth the effort
to merge the two ports.  I think the same problem is present in binutils
and gdb.

The GMP package has an ABI configure option.  I don't really like it but
for performance reasons they want to use 64-bit registers with the 32-bit
som runtime and a wide kernel.  This works since the kernel saves the
full 64-bit context.  However, we don't try this in GCC since the upper
32-bits aren't preserved across calls.

HP compilers also have a +DDdata_model option to generate code for
the ILP32 and ILP64 data models.  This option overlaps to some extent
the +DA option.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Le dimanche 29 octobre 2006 =C3=A0 15:48 -0500, John David Anglin a =C3=A9c=
rit :
> I think that adding -march=3D{1.0, 1.1, 2.0, 2.0w} to the command
> line options is reasonable.  This together with .level could be
> used to select output format and arch.  I think .level overrides
> the command line option (warning needed).  .level should appear
> before any other directives.  If we need to become more specific
> about the ABI, then an -mabi option could be added.

Because gas calls bfd_openw before the source file has been read,
there's a limit to how much can be changed after that point.  If the
command line asks for 1.1, and the file contains .LEVEL 2.0w, I think
the only solution is to crash out hard.  Otherwise, a warning can be
displayed.

> The tricky part is handling both som and elf64 for hpux, and elf32
> and elf64 for linux.  It will take a fair bit of work to merge the
> bfd stuff.  It may be difficult to do this in a clean manner given
> that the elf and som targets are quite different.

I haven't looked beyond merging elf32 and elf64 yet.  So far I'm trying
to get this patch in before I move onto bfd.  I'd rather not maintain
this out of tree for long.

I have to admit that my target has mostly been for Linux, so elf32 and
elf64.  Are you hoping ideally to have a single gas that could do all
hppa targets?  I think that others have got backends that will do both
aout and elf and such.  I'd have to take a look to see how hard that
would be.

> I think the best plan would be to do the various merges before
> adding the option to select the arch at runtime.

I'd like to see the command line options go in right away (and have them
fail if the target isn't compiled in) so that gcc can be tweaked to pass
the command line options to gas if -m32 or -m64.

> The big problem in supporting multiple ABIs lies in GCC.  The som and
> elf64 targets are essentially incompatible.  There are a number of macros
> which change GCC's behavior depending on whether they are defined or not
> defined.  We have a number of macros that need to be defined in one case
> and not in the other.  Jeff Law used to say it wasn't worth the effort
> to merge the two ports.  I think the same problem is present in binutils
> and gdb.

I think I can at least get the elf targets merged for now in binutils,
which will reduce pain rather than increase it.  If I can get that patch
in, then I'll move along to look at SOM.

For what started off as a 5 line patch, the scope is growing a bit with
every email. =3D)

--
Jeff Bailey - http://www.raspberryginger.com/jbailey/

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On 10/23/06, Alan Mock <alan.mock@gmail.com> wrote:
> Hello,
>
> Is there currently any work being done on a 64-bit userland for
> Linux?  I can't find any recent references to it.
> Thanks,

Would you like to work on it?

There is quite a bit of work to do in our 32-bit port aswell if you
are interested in toolchain hacking.

Cheers,
Carlos
(Back from the land of "moving to a new condo")
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I would like to work on it, but I don't think I know enough to get  
started on my own.  I wouldn't mind working on the 32-bit port,  
either.  Is there a list somewhere of things that need work?
Thanks,
Alan
On Oct 29, 2006, at 7:58 PM, Carlos O'Donell wrote:

> On 10/23/06, Alan Mock <alan.mock@gmail.com> wrote:
>> Hello,
>>
>> Is there currently any work being done on a 64-bit userland for
>> Linux?  I can't find any recent references to it.
>> Thanks,
>
> Would you like to work on it?
>
> There is quite a bit of work to do in our 32-bit port aswell if you
> are interested in toolchain hacking.
>
> Cheers,
> Carlos
> (Back from the land of "moving to a new condo")

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On 10/29/06, Alan Mock <alan.mock@gmail.com> wrote:
> I would like to work on it, but I don't think I know enough to get
> started on my own.  I wouldn't mind working on the 32-bit port,
> either.  Is there a list somewhere of things that need work?

A great place to start is with our compiler. I would start by learning
to build and test GCC on your parisc-linux system.

http://gcc.gnu.org

You can use SVN to checkout the latest "trunk" of GCC, then run

configure --enable-languages=c,c++
make bootstrap
make -k check

Post the results of the testsuite to the list.

Cheers,
Carlos.
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On 10/29/06, Randolph Chung <randolph@tausq.org> wrote:
> At kyle's urging, i've started an initial implementation of vdso support
>   for parisc-linux. I've attached what I have so far for some initial
> comments. This is primarily based on the ppc vdso infrastructure.

Awesome work, thanks for working on a vDSO initial implementation!

> Some things to consider:
> 1) The vdso object need to be mapped to userspace apps at some "default"
> location. In fact the kernel will look for an available vma using
> get_unmapped_area(). Right now I've arbitrarily picked 0x8000'0000. This
> should be reviewed.... one idea is to just map them at at the same place
> that shared libs are mapped (near 0x4000'0000). The bigger concern is
> whether we should make the mapping with MAP_SHARED so that the shared
> area is mapped congruent in all userspace apps that use the vdso. ppc
> doesn't do this.

Users may enable or disable the vDSO on their system as a
configuration option. Therefore glibc can't rely on the vDSO being
present. How would this effect a prelinking implementation for hppa? I
think I would rather see the vDSO at a high address, and enable
MAP_SHARED. What is wrong with enabling MAP_SHARED?

> 2) our mmu_context_t used to be a single int that stores the space id of
> the current process. This has been extended into a struct that stores
> the space id and the vdso base address

This is good, we need the vdso base.

> 4) I haven't hooked up all the actual vdso functions yet, but with this
> patch userspace can see the functions exposed from the kernel, we can
> use gdb to put breakpoints in the vdso, etc.

You use the word "can", but have you tried to put breakpoints in the
vDSO code pages?

> 5) We need to figure out which functions we want to expose. Several
> other archs expose gettimeofday and clock_get_time via vdso. For us,
> atomic ops are also prime candidates. Several archs also use the vdso to
> provide a cleaner signal trampoline interface. The latter mostly
> requires somebody to write up all the proper cfi instructions into
> sigtramp.S

atomic ops are *not* prime candidates for vDSO's, I was wrong about
this. There are special requirements for the atomic operations which
require access to kernel locks, no scheduling, and no signals.  All of
these are impossible to do if gdb can write to code, thus we put the
atomic ops on the gateway page (which has the aforementioned special
properties).

The rest of your suggestions are great. Signal trampoline handlers are
#1 on the list of cleanups. We already know HPUX does something
similar.

> As part of testing this, I also noticed that our gas does not support
> cfi directives that were added to binutils some time ago. I've submitted
> a patch for this.
>
> glibc will need some work to get this to work. As a first step we need a
> dl-sysdep.h that defines:
>   #define NEED_DL_SYSINFO_DSO     1

Thanks!

> If you use upstream glibc this is already enabled for all targets, but
> debian glibc will need this added if you want to test.
>
> Anyway, please let me know if you have any comments.

What testing do we need to do before you check this into git?

Cheers,
Carlos.
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>> Some things to consider:
>> 1) The vdso object need to be mapped to userspace apps at some "default"
>> location. In fact the kernel will look for an available vma using
>> get_unmapped_area(). Right now I've arbitrarily picked 0x8000'0000. This
>> should be reviewed.... one idea is to just map them at at the same place
>> that shared libs are mapped (near 0x4000'0000). The bigger concern is
>> whether we should make the mapping with MAP_SHARED so that the shared
>> area is mapped congruent in all userspace apps that use the vdso. ppc
>> doesn't do this.
> 
> Users may enable or disable the vDSO on their system as a
> configuration option. Therefore glibc can't rely on the vDSO being
> present. How would this effect a prelinking implementation for hppa? I

glibc looks for a special ELF AUX header to find out about the address
of the vdso. If it's not present, then it won't call the vdso....

The implementation for this is cleaner in cvs glibc than in debian glibc.

I'm not quite sure how this interacts with prelink.

> think I would rather see the vDSO at a high address, and enable
> MAP_SHARED. What is wrong with enabling MAP_SHARED?

I can't think of one, although it needs to be marked MAY_WRITE so that
if we put a breakpoint the page will get COW'ed. Need to look at this
some more.

>> 4) I haven't hooked up all the actual vdso functions yet, but with this
>> patch userspace can see the functions exposed from the kernel, we can
>> use gdb to put breakpoints in the vdso, etc.
> 
> You use the word "can", but have you tried to put breakpoints in the
> vDSO code pages?

yes, it works.

> atomic ops are *not* prime candidates for vDSO's, I was wrong about
> this. There are special requirements for the atomic operations which
> require access to kernel locks, no scheduling, and no signals.  All of
> these are impossible to do if gdb can write to code, thus we put the
> atomic ops on the gateway page (which has the aforementioned special
> properties).

i can't quite see how lws disables scheduling... maybe you can enlighten
me :)

> The rest of your suggestions are great. Signal trampoline handlers are
> #1 on the list of cleanups. We already know HPUX does something
> similar.

Well, there are two parts:
1) Finding "sigreturn"
2) Finding the system state on the stack

Right now this is all done on parisc-linux by poking in memory using
magic constants.

On HPUX, #1 is available symbolically, but #2 still requires poking in
memory using magic constants. It is particularly nasty on HPUX because
the kernel can store state in either narrow or wide mode and the offsets
are not fixed.

>> If you use upstream glibc this is already enabled for all targets, but
>> debian glibc will need this added if you want to test.
>>
>> Anyway, please let me know if you have any comments.
> 
> What testing do we need to do before you check this into git?

What I have is just infrastructure, we need to add some functionality
into it :)

randolph
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> Post the results of the testsuite to the list.

I regularly post GCC test results to <http://gcc.gnu.org/ml/gcc-testresults/>.

At the moment, there's some small difference in results using 32 and 64-bit
kernels.  The 22_locale/time_get/get_date/wchar_t/4.cc execution test only
fails on my c3k with a 32-bit kernel.  Also, gfortran.dg/cray_pointers_2.f90
tests sometimes file on 32-bit kernels.  There are still occasional problems
with expect/tcl truncating the output in tests that generate a lot of output.

There are some libjava fails that appear to be pthread problems, but
I also see similar failures on hpux.  So, I tend to blame the libjava
implementation which is quite complex and fun to debug.

Otherwise, we are as good as x86 ;)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] NPTL Glibc on Ubuntu this week
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Hey'all!

We're just getting ready to roll out the new glibc on Ubuntu.  Last I
checked, Carlos said that there was libthread ABI breakage.  We didn't
bump the SOVERSION, though.  Even if we did bump it, Debian/Ubuntu don't
track the thread package version separately right now, so we'd never see
it in package upgrades - things will just silently break.  So far the
plan is to ignore it, since updating from dapper to feisty is a by-hand
operation and the basic tools aren't threaded.  So upgrades will work,
they'll just suck.

So this is a final check before we roll - any other dragons hiding in
the waters that we might worry about?

--
Jeff Bailey - http://www.raspberryginger.com/jbailey/

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On 10/31/06, Randolph Chung <randolph@tausq.org> wrote:
> > atomic ops are *not* prime candidates for vDSO's, I was wrong about
> > this. There are special requirements for the atomic operations which
> > require access to kernel locks, no scheduling, and no signals.  All of
> > these are impossible to do if gdb can write to code, thus we put the
> > atomic ops on the gateway page (which has the aforementioned special
> > properties).
>
> i can't quite see how lws disables scheduling... maybe you can enlighten
> me :)


> Well, there are two parts:
> 1) Finding "sigreturn"
> 2) Finding the system state on the stack
>
> Right now this is all done on parisc-linux by poking in memory using
> magic constants.
>
> On HPUX, #1 is available symbolically, but #2 still requires poking in
> memory using magic constants. It is particularly nasty on HPUX because
> the kernel can store state in either narrow or wide mode and the offsets
> are not fixed.

On parisc-linux there is *always* a 32-bit system state on the stack.
If you have a 64-bit kernel there is an auxiliary section which
contains the register top-halves. I think we can conjure up some magic
to determine which structure is on the stack.

> > What testing do we need to do before you check this into git?
>
> What I have is just infrastructure, we need to add some functionality
> into it :)

Yes, but if it gets checked into git it makes it easier to keep it
from bitrotting.
With your HK timezone it makes coordinating more difficult.

Cheers,
Carlos.
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On 10/31/06, Randolph Chung <randolph@tausq.org> wrote:
> > atomic ops are *not* prime candidates for vDSO's, I was wrong about
> > this. There are special requirements for the atomic operations which
> > require access to kernel locks, no scheduling, and no signals.  All of
> > these are impossible to do if gdb can write to code, thus we put the
> > atomic ops on the gateway page (which has the aforementioned special
> > properties).
>
> i can't quite see how lws disables scheduling... maybe you can enlighten
> me :)

LWS doesn't disable scheduling. See arch/parisc/kernel/syscall.S

arch/parisc/kernel/syscall.S
547 /* NOTES:
548 This all works becuse intr_do_signal
549 and schedule both check the return iasq
550 and see that we are on the kernel page
551 so this process is never scheduled off
552 or is ever sent any signal of any sort,
553 thus it is wholly atomic from usrspaces
554 perspective
555 */

Checks like this:
arch/parisc/kernel/entry.S
1023 intr_do_resched:
1024 /* Only call schedule on return to userspace. If we're returning
1025 * to kernel space, we may schedule if CONFIG_PREEMPT, otherwise
1026 * we jump back to intr_restore.
1027 */
1028 LDREG PT_IASQ0(%r16), %r20
1029 CMPIB= 0, %r20, intr_do_preempt
1030 nop

Mean that if we take an interrupt while on the gateway page, the
PT_IASQ0 should be zero and prevent intr_do_preempt, or
intr_do_signal, or any other protected intr_* action.

Scheduling isn't a bit problem, but signals cause deadlocks.

Cheers,
Carlos.
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> I am having trouble bootstrapping gcc.  My questions are how do I get  
> gcc to bootstrap using hppa1.1 and how do I disable building ada?  I  
> configured using --enable-languages=c,c++ as the only flag and  
> encountered the following error.
> 
> /usr/bin/ld: warning: hppa2.0w architecture of input file `libgcc/./ 
> gthr-gnat_s.o' is incompatible with hppa1.1 output
> /usr/bin/ld: warning: hppa2.0w architecture of input file `libgcc/./ 
> unwind-c_s.o' is incompatible with hppa1.1 output
> /usr/bin/ld: warning: hppa2.0w architecture of input file `./ 
> crtendS.o' is incompatible with hppa1.1 output
> /usr/bin/ld: ./crtbeginS.o(.data.rel+0x0): cannot handle  
> R_PARISC_DIR64 for __dso_handle

You have to force the target to 32 bits when using a 64-bit kernel.
Otherwise, the build machinary will try to build a 64-bit version
of GCC.  However, parisc-linux only supports a 32-bit userspace
at the moment ;(

There's probably a bug in config.guess.  Under hpux, it selects
between 32 and 64 bits based on the bootstrap compiler.  However,
this is a bit of a hack and there's some work going on to try to
integrate the 32 and 63-bit tool chains.

> With many more warning: lines above what is shown.  To fix this I  
> tried passing --target=hppa-unknown-linux-gnu --enable-languages=c,c+ 
> + to configure so that it will not try to build an hppa2.0 compiler,  
> however that produces an error message saying that gnat can't be  
> found, so I guess it is trying to build the ada frontend.

c,c++ should be "c,c++".  This should fix the gnat error.  I typically
something like the following to configure GCC:

../gcc/configure --with-gnu-as --with-gnu-ld --enable-shared --prefix=/home/dave/opt/gnu/gcc/gcc-4.2.0 --with-local-prefix=/home/dave/opt/gnu --enable-threads=posix --enable-__cxa_atexit --host=hppa-linux --enable-clocale=gnu --enable-java-gc=boehm --enable-java-awt="xlib" --enable-languages="c,c++,objc,fortran,java,ada,obj-c++"

The --host option also sets --target.  Here my build directory is adjacent
to my GCC tree.

Using debian and I believe gentoo, GCC 4.1 packages are available.
So, you really shouldn't have to build GCC unless you are interested
in working on or learning about GCC.  4.2 and 4.3 aren't ready for
prime time.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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>> What I have is just infrastructure, we need to add some functionality
>> into it :)
> 
> Yes, but if it gets checked into git it makes it easier to keep it
> from bitrotting.
> With your HK timezone it makes coordinating more difficult.

For people who are interested, this is now on the vdso branch in git.

randolph

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I am having trouble bootstrapping gcc.  My questions are how do I get  
gcc to bootstrap using hppa1.1 and how do I disable building ada?  I  
configured using --enable-languages=c,c++ as the only flag and  
encountered the following error.

/usr/bin/ld: warning: hppa2.0w architecture of input file `libgcc/./ 
gthr-gnat_s.o' is incompatible with hppa1.1 output
/usr/bin/ld: warning: hppa2.0w architecture of input file `libgcc/./ 
unwind-c_s.o' is incompatible with hppa1.1 output
/usr/bin/ld: warning: hppa2.0w architecture of input file `./ 
crtendS.o' is incompatible with hppa1.1 output
/usr/bin/ld: ./crtbeginS.o(.data.rel+0x0): cannot handle  
R_PARISC_DIR64 for __dso_handle
/usr/bin/ld: final link failed: Bad value
collect2: ld returned 1 exit status
make[3]: *** [libgcc_s.so] Error 1
make[3]: Leaving directory `/gcc/gccbuild/gcc'
make[2]: *** [libgcc.a] Error 2
make[2]: Leaving directory `/gcc/gccbuild/gcc'
make[1]: *** [stage1_build] Error 2
make[1]: Leaving directory `/gcc/gccbuild/gcc'
make: *** [bootstrap] Error 2

With many more warning: lines above what is shown.  To fix this I  
tried passing --target=hppa-unknown-linux-gnu --enable-languages=c,c+ 
+ to configure so that it will not try to build an hppa2.0 compiler,  
however that produces an error message saying that gnat can't be  
found, so I guess it is trying to build the ada frontend.

Thanks,
Alan
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Subject: Re: [parisc-linux] Trouble Building GCC
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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Carlos O'Donell wrote:
> On 11/1/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
>> Using debian and I believe gentoo, GCC 4.1 packages are available.
>> So, you really shouldn't have to build GCC unless you are interested
>> in working on or learning about GCC.  4.2 and 4.3 aren't ready for
>> prime time.
> 
> I recommended he start by learning to build the compiler.
> 
imho, a good source of information for that was for me the learning the way the debian packages (gcc-4.1 and gcc-4.2 aka 
gcc-snapshot) are build (verbose build and log the stuff was helpfull). More over, for me, those pakages are particulary 
well design: uptream sources, debian patches, ... and consequently easy to understand ;-)

Ciao,
	Joel
> Cheers,
> Carlos.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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Subject: [parisc-linux] [PATCH] Multiple Mux Cards.
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Hello All,

The Mux driver did not properly handle multiple Mux cards in the system.
One of the biggest problems I ran into on the E-35 is the detection of other
Mux cards happens before the detection of the built-in Mux card.   This
caused problems because the console would be be ttyB0 without the additional
Mux card, and ttyB16 with the additional Mux card.

The patch is still rough, but I wanted to present the proof-of-concept patch
I came up with to solve the problem to this list for review.

Basically the patch checks to see if the console on the PAGE0 address is a
Mux.  If it is, it calculates the number of ports that are available on the
Mux and reserves these ports before registering the driver.   The other
information (iomem resources, etc) are still done when the devices is
actually probed.

Let me know what you think :)

Thanks!

- Ryan

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Hello All,<br><br>The Mux driver did not properly handle multiple Mux cards in the system.&nbsp;&nbsp; One of the biggest problems I ran into on the E-35 is the detection of other Mux cards happens before the detection of the built-in Mux card.&nbsp;&nbsp; This caused problems because the console would be be ttyB0 without the additional Mux card, and ttyB16 with the additional Mux card.
<br><br>The patch is still rough, but I wanted to present the proof-of-concept patch I came up with to solve the problem to this list for review.<br><br>Basically the patch checks to see if the console on the PAGE0 address is a Mux.&nbsp; If it is, it calculates the number of ports that are available on the Mux and reserves these ports before registering the driver.&nbsp;&nbsp; The other information (iomem resources, etc) are still done when the devices is actually probed.
<br><br>Let me know what you think :)<br><br>Thanks!<br><br>- Ryan<br><br>

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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: [parisc-linux] LBA PCI : avoid crash when pluging a pcmcia bridge
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Hi All,

Referencing this thread about a crash when there is a pcmcia bridge plugged in a C3600 :
http://lists.parisc-linux.org/pipermail/parisc-linux/2006-October/030312.html

This small patch avoid a crash at boot time.

It's certainly not perfect as it would be better to fix pci_scan_bus_parented() which returns NULL but at least it makes the box booting.

Thanks for applying or fixing this in a better way :)


Cheers,
  Guy


-- 
Guy Martin
Gentoo Linux - HPPA port Lead

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diff -uNr linux-2.6.18.2-hppa.orig/drivers/parisc/lba_pci.c linux-2.6.18.2-hppa/drivers/parisc/lba_pci.c
--- linux-2.6.18.2-hppa.orig/drivers/parisc/lba_pci.c	2006-11-08 13:59:32.000000000 +0100
+++ linux-2.6.18.2-hppa/drivers/parisc/lba_pci.c	2006-11-08 14:13:14.000000000 +0100
@@ -1557,7 +1557,8 @@
 		lba_dump_res(&lba_dev->hba.lmmio_space, 2);
 #endif
 	}
-	pci_enable_bridges(lba_bus);
+	if (lba_bus)
+		pci_enable_bridges(lba_bus);
 
 
 	/*

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Subject: Re: [parisc-linux] LBA PCI : avoid crash when pluging a pcmcia bridge
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On Wed, Nov 08, 2006 at 03:07:06PM +0100, Guy Martin wrote:
> Hi All,
> 
> Referencing this thread about a crash when there is a pcmcia bridge plugged in a C3600 :
> http://lists.parisc-linux.org/pipermail/parisc-linux/2006-October/030312.html
> 
> This small patch avoid a crash at boot time.
> 
> It's certainly not perfect as it would be better to fix
> pci_scan_bus_parented() which returns NULL but at least
> it makes the box booting.

Guy,
This is exactly why I won't apply this patch.
Not many people are plugging PCMCIA bridges into parisc boxen.
Those that do can tweak this by hand if they really insist on
installing something that causes the kernel to crash.

> Thanks for applying or fixing this in a better way :)

I should have a bit of time next week to look at this
and one other parisc problem...but I first need to test the recipe
that willy posted last week for updating existing git source trees.

thanks for your patience and gentle reminder,
grant
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Subject: Re: [parisc-linux] suppress led task for KittyHawk's LCD
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Hi Guy,

On Sunday 12 November 2006 01:45, Guy Martin wrote:
> I've noticed that the LCD on my K410 is filled at a constant rate with black characters.
> After some investigation, it looked like the code updating the led status was filling the LCD.
....

instead of adding:
+               no_led = 1;     /* no led support on KittyHawk */
                goto found;     /* use the preinitialized values of lcd_info */

did you tried to comment out the "goto found" ?

Helge
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Hi Helge,

This can't work. If you don't call register_led_driver(), led_func_ptr and led_type stay NULL and lcd_print() never prints anything.
You can change lcd_print() not to check led_func_ptr but I fear something may break if the device is not initialized :)

Maybe we could use static int initialized defined in register_led_driver and make it global to check if the device is ready or not.

  Guy


On Sun, 12 Nov 2006 15:04:38 +0100
Helge Deller <deller@gmx.de> wrote:

> Hi Guy,
> 
> On Sunday 12 November 2006 01:45, Guy Martin wrote:
> > I've noticed that the LCD on my K410 is filled at a constant rate with black characters.
> > After some investigation, it looked like the code updating the led status was filling the LCD.
> ....
> 
> instead of adding:
> +               no_led = 1;     /* no led support on KittyHawk */
>                 goto found;     /* use the preinitialized values of lcd_info */
> 
> did you tried to comment out the "goto found" ?
> 
> Helge



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Hi Guy,

I think you misunderstood me.
My idea was that you check what your machine's BIOS (PDC) returns for pdc_chassis_info().

So, if you would remove this code from led_init() you may test the results without this "workaround for KittyHawk":
        /* Work around the buggy PDC of KittyHawk-machines */
        switch (CPU_HVERSION) {
        case 0x580:             /* KittyHawk DC2-100 (K100) */
        case 0x581:             /* KittyHawk DC3-120 (K210) */
        case 0x582:             /* KittyHawk DC3 100 (K400) */
        case 0x583:             /* KittyHawk DC3 120 (K410) */
        case 0x58B:             /* KittyHawk DC2 100 (K200) */
                printk(KERN_INFO "%s: KittyHawk-Machine (hversion 0x%x) found, "
                                "LED detection skipped.\n", __FILE__, CPU_HVERSION);
                goto found;     /* use the preinitialized values of lcd_info */
        }

Helge


On Sunday 12 November 2006 15:50, Guy Martin wrote:
> 
> Hi Helge,
> 
> This can't work. If you don't call register_led_driver(), led_func_ptr and led_type stay NULL and lcd_print() never prints anything.
> You can change lcd_print() not to check led_func_ptr but I fear something may break if the device is not initialized :)
> 
> Maybe we could use static int initialized defined in register_led_driver and make it global to check if the device is ready or not.
> 
>   Guy
> 
> 
> On Sun, 12 Nov 2006 15:04:38 +0100
> Helge Deller <deller@gmx.de> wrote:
> 
> > Hi Guy,
> > 
> > On Sunday 12 November 2006 01:45, Guy Martin wrote:
> > > I've noticed that the LCD on my K410 is filled at a constant rate with black characters.
> > > After some investigation, it looked like the code updating the led status was filling the LCD.
> > ....
> > 
> > instead of adding:
> > +               no_led = 1;     /* no led support on KittyHawk */
> >                 goto found;     /* use the preinitialized values of lcd_info */
> > 
> > did you tried to comment out the "goto found" ?
> > 
> > Helge
> 
> 
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: Re: [parisc-linux] suppress led task for KittyHawk's LCD
Date: Mon, 13 Nov 2006 22:54:21 +0100
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Hi Helge,

Sorry for the missunderstanding.

It says this :
[42949382.500000] LED display at ffd0c000 registered

And nothing can be seen on the lcd since it's not detected and disabled.
/proc/pdc/lcd doesn't exists.

Do you know if this lcd is supposed to display the leds character ?


  Guy


On Sun, 12 Nov 2006 16:05:07 +0100
Helge Deller <deller@gmx.de> wrote:

> Hi Guy,
> 
> I think you misunderstood me.
> My idea was that you check what your machine's BIOS (PDC) returns for pdc_chassis_info().
> 
> So, if you would remove this code from led_init() you may test the results without this "workaround for KittyHawk":
>         /* Work around the buggy PDC of KittyHawk-machines */
>         switch (CPU_HVERSION) {
>         case 0x580:             /* KittyHawk DC2-100 (K100) */
>         case 0x581:             /* KittyHawk DC3-120 (K210) */
>         case 0x582:             /* KittyHawk DC3 100 (K400) */
>         case 0x583:             /* KittyHawk DC3 120 (K410) */
>         case 0x58B:             /* KittyHawk DC2 100 (K200) */
>                 printk(KERN_INFO "%s: KittyHawk-Machine (hversion 0x%x) found, "
>                                 "LED detection skipped.\n", __FILE__, CPU_HVERSION);
>                 goto found;     /* use the preinitialized values of lcd_info */
>         }
> 
> Helge
> 
> 
> On Sunday 12 November 2006 15:50, Guy Martin wrote:
> > 
> > Hi Helge,
> > 
> > This can't work. If you don't call register_led_driver(), led_func_ptr and led_type stay NULL and lcd_print() never prints anything.
> > You can change lcd_print() not to check led_func_ptr but I fear something may break if the device is not initialized :)
> > 
> > Maybe we could use static int initialized defined in register_led_driver and make it global to check if the device is ready or not.
> > 
> >   Guy
> > 
> > 
> > On Sun, 12 Nov 2006 15:04:38 +0100
> > Helge Deller <deller@gmx.de> wrote:
> > 
> > > Hi Guy,
> > > 
> > > On Sunday 12 November 2006 01:45, Guy Martin wrote:
> > > > I've noticed that the LCD on my K410 is filled at a constant rate with black characters.
> > > > After some investigation, it looked like the code updating the led status was filling the LCD.
> > > ....
> > > 
> > > instead of adding:
> > > +               no_led = 1;     /* no led support on KittyHawk */
> > >                 goto found;     /* use the preinitialized values of lcd_info */
> > > 
> > > did you tried to comment out the "goto found" ?
> > > 
> > > Helge
> > 
> > 



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On 11/13/06, Joe Emenaker <joe@emenaker.com> wrote:
> When trying to find a Debian HPPA cd that would work on my 9000, someone
> pointed me to some guy who makes fairly frequent builds of the kernel
> and cd image. It wasn't a fancy webpage... just a list of files he kept
> in his personal (ie, with a "~" in the url) folder.
>
> Anybody know what I'm talking about?

Maybe this: http://people.debian.org/~kyle/d-i/hppa/daily/ ?

HTH

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [parisc-linux] LBA PCI : avoid crash when pluging a pcmcia bridge
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On Wed, Nov 08, 2006 at 03:07:06PM +0100, Guy Martin wrote:
> Hi All,
> 
> Referencing this thread about a crash when there is a pcmcia bridge plugged in a C3600 :
> http://lists.parisc-linux.org/pipermail/parisc-linux/2006-October/030312.html
...
> it would be better to fix pci_scan_bus_parented() which returns NULL

Guy,

pci_scan_bus_parented() calls pci_create_bus() in order to allocate
the bus.   pci_create_bus() is obviously failing.

Can you add printks to each of the follow labels in pci_create_bus()
and printks for the first two "return NULL" statements?

It's ok if your tree also has the patch you proposed so it doesn't crash.

Code from drivers/pci/probe.c:pci_create_bus()
...
sys_create_link_err:
        class_device_remove_file(&b->class_dev, &class_device_attr_cpuaffinity);
class_dev_create_file_err:
        class_device_unregister(&b->class_dev);
class_dev_reg_err:
        device_unregister(dev);
dev_reg_err:
        down_write(&pci_bus_sem);
        list_del(&b->node);
        up_write(&pci_bus_sem);
err_out:
        kfree(dev);
        kfree(b);
        return NULL;
}

Once I know which error is occurring, then I can take
the next step towards investigating the problem.

thanks,
grant
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Hi Grant,

It looks like pci_find_bus() return non null for the pcmcia bridge.

        if (pci_find_bus(pci_domain_nr(b), bus)) {
                /* If we already got to this bus through a different bridge, ignore it */
                pr_debug("PCI: Bus %04x:%02x already known\n", pci_domain_nr(b), bus);
                goto err_out;
        }


With PCI_DEBUG and some more printk() I can see this in my dmesg :

PCI: Found 0000:01:06.0 [1180/0475] 000607 02
PCI: Calling quirk 102564c8 for 0000:01:06.0
PCI: Fixups for bus 0000:01
PCI: Scanning behind PCI bridge 0000:01:06.0, config 000000, pass 0
PCI: Scanning behind PCI bridge 0000:01:06.0, config 000000, pass 1
PCI: Bus scan for 0000:01 returning with max=05
PCI: Enabling bus mastering for device 0000:01:06.0
PCI: Bus 0000:02 already known
PCI: Reached err_out:

01:06.0 CardBus bridge: Ricoh Co Ltd RL5c475 (rev 80)
        Subsystem: CARRY Computer ENG. CO Ltd Unknown device 0101
        Flags: bus master, medium devsel, latency 128
        Bus: primary=01, secondary=02, subordinate=05, sec-latency=176
        I/O window 0: 00000000-00000003 [disabled]
        I/O window 1: 00000000-00000003 [disabled]
        16-bit legacy interface ports at 0001

01:06.0 0607: 1180:0475 (rev 80)
        Subsystem: 14ef:0101
        Flags: bus master, medium devsel, latency 128
        Bus: primary=01, secondary=02, subordinate=05, sec-latency=176
        I/O window 0: 00000000-00000003 [disabled]
        I/O window 1: 00000000-00000003 [disabled]
        16-bit legacy interface ports at 0001

This is 2.6.18.2-pa0 on C3600.

Let me know if you need anything else.

Cheers,
  Guy



On Wed, 15 Nov 2006 01:00:22 -0700
Grant Grundler <grundler@parisc-linux.org> wrote:

> On Wed, Nov 08, 2006 at 03:07:06PM +0100, Guy Martin wrote:
> > Hi All,
> > 
> > Referencing this thread about a crash when there is a pcmcia bridge plugged in a C3600 :
> > http://lists.parisc-linux.org/pipermail/parisc-linux/2006-October/030312.html
> ...
> > it would be better to fix pci_scan_bus_parented() which returns NULL
> 
> Guy,
> 
> pci_scan_bus_parented() calls pci_create_bus() in order to allocate
> the bus.   pci_create_bus() is obviously failing.
> 
> Can you add printks to each of the follow labels in pci_create_bus()
> and printks for the first two "return NULL" statements?
> 
> It's ok if your tree also has the patch you proposed so it doesn't crash.
> 
> Code from drivers/pci/probe.c:pci_create_bus()
> ...
> sys_create_link_err:
>         class_device_remove_file(&b->class_dev, &class_device_attr_cpuaffinity);
> class_dev_create_file_err:
>         class_device_unregister(&b->class_dev);
> class_dev_reg_err:
>         device_unregister(dev);
> dev_reg_err:
>         down_write(&pci_bus_sem);
>         list_del(&b->node);
>         up_write(&pci_bus_sem);
> err_out:
>         kfree(dev);
>         kfree(b);
>         return NULL;
> }
> 
> Once I know which error is occurring, then I can take
> the next step towards investigating the problem.
> 
> thanks,
> grant
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On Wed, Nov 15, 2006 at 12:25:06PM +0100, Guy Martin wrote:
> It looks like pci_find_bus() return non null for the pcmcia bridge.
> 
>         if (pci_find_bus(pci_domain_nr(b), bus)) {
>                 /* If we already got to this bus through a different bridge, ignore it */
>                 pr_debug("PCI: Bus %04x:%02x already known\n", pci_domain_nr(b), bus);
>                 goto err_out;
>         }

Oh.  So we got a bus numbering conflict.  Yay.

> With PCI_DEBUG and some more printk() I can see this in my dmesg :
> 
> PCI: Found 0000:01:06.0 [1180/0475] 000607 02
> PCI: Calling quirk 102564c8 for 0000:01:06.0
> PCI: Fixups for bus 0000:01
> PCI: Scanning behind PCI bridge 0000:01:06.0, config 000000, pass 0
> PCI: Scanning behind PCI bridge 0000:01:06.0, config 000000, pass 1
> PCI: Bus scan for 0000:01 returning with max=05
> PCI: Enabling bus mastering for device 0000:01:06.0
> PCI: Bus 0000:02 already known
> PCI: Reached err_out:
> 
> Let me know if you need anything else.

I bet a plain lspci will show a bus 2 elsewhere (probably one of the
root busses).  ie: we need to renumber all our busses, just like we do
for Dino.  Either that, or start using PCI domains, but I'd rather not
go there just yet.
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On Wed, 2006-11-15 at 05:23 -0700, Matthew Wilcox wrote:
> I bet a plain lspci will show a bus 2 elsewhere (probably one of the
> root busses).  ie: we need to renumber all our busses, just like we do
> for Dino.  Either that, or start using PCI domains, but I'd rather not
> go there just yet.

The dino code will probably be pretty much transportable over to LBA.
Dino was redone like this specifically to get PCMCIA bridges working,
and for the same reason (Firmware doesn't scan them, so they ended up
with conflicting or unassigned bus numbers).

James


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On Wed, 15 Nov 2006 05:23:52 -0700
Matthew Wilcox <matthew@wil.cx> wrote:

> I bet a plain lspci will show a bus 2 elsewhere (probably one of the
> root busses).  ie: we need to renumber all our busses, just like we do
> for Dino.  Either that, or start using PCI domains, but I'd rather not
> go there just yet.

Hi Matthew,

I've put the complete dmesg and lspci output (both numerical and not) here :
https://www.tuxicoman.be/temp/c3600-pci-debug.logs

Cheers,
  Guy
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Hi Guy,

I'm not sure if the LCD display on KittyHawks is supposed to print the activity symbols.
I think the best thing is to try it with HPUX. If HP-UX works, then something needs to be fixed.

Maybe HP-UX only uses the LCD display to print the LCD text (/proc/pdc/lcd) as well ?
In this case you should try again to disable the led status symbols for KittyHawk machines only.

Helge

On Monday 13 November 2006 22:54, Guy Martin wrote:
> Sorry for the missunderstanding.
> 
> It says this :
> [42949382.500000] LED display at ffd0c000 registered
> 
> And nothing can be seen on the lcd since it's not detected and disabled.
> /proc/pdc/lcd doesn't exists.
> 
> Do you know if this lcd is supposed to display the leds character ?
> 
> 
>   Guy
> 
> 
> On Sun, 12 Nov 2006 16:05:07 +0100
> Helge Deller <deller@gmx.de> wrote:
> 
> > Hi Guy,
> > 
> > I think you misunderstood me.
> > My idea was that you check what your machine's BIOS (PDC) returns for pdc_chassis_info().
> > 
> > So, if you would remove this code from led_init() you may test the results without this "workaround for KittyHawk":
> >         /* Work around the buggy PDC of KittyHawk-machines */
> >         switch (CPU_HVERSION) {
> >         case 0x580:             /* KittyHawk DC2-100 (K100) */
> >         case 0x581:             /* KittyHawk DC3-120 (K210) */
> >         case 0x582:             /* KittyHawk DC3 100 (K400) */
> >         case 0x583:             /* KittyHawk DC3 120 (K410) */
> >         case 0x58B:             /* KittyHawk DC2 100 (K200) */
> >                 printk(KERN_INFO "%s: KittyHawk-Machine (hversion 0x%x) found, "
> >                                 "LED detection skipped.\n", __FILE__, CPU_HVERSION);
> >                 goto found;     /* use the preinitialized values of lcd_info */
> >         }
> > 
> > Helge
> > 
> > 
> > On Sunday 12 November 2006 15:50, Guy Martin wrote:
> > > 
> > > Hi Helge,
> > > 
> > > This can't work. If you don't call register_led_driver(), led_func_ptr and led_type stay NULL and lcd_print() never prints anything.
> > > You can change lcd_print() not to check led_func_ptr but I fear something may break if the device is not initialized :)
> > > 
> > > Maybe we could use static int initialized defined in register_led_driver and make it global to check if the device is ready or not.
> > > 
> > >   Guy
> > > 
> > > 
> > > On Sun, 12 Nov 2006 15:04:38 +0100
> > > Helge Deller <deller@gmx.de> wrote:
> > > 
> > > > Hi Guy,
> > > > 
> > > > On Sunday 12 November 2006 01:45, Guy Martin wrote:
> > > > > I've noticed that the LCD on my K410 is filled at a constant rate with black characters.
> > > > > After some investigation, it looked like the code updating the led status was filling the LCD.
> > > > ....
> > > > 
> > > > instead of adding:
> > > > +               no_led = 1;     /* no led support on KittyHawk */
> > > >                 goto found;     /* use the preinitialized values of lcd_info */
> > > > 
> > > > did you tried to comment out the "goto found" ?
> > > > 
> > > > Helge
> > > 
> > > 
> 
> 
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Subject: Re: [parisc-linux] suppress led task for KittyHawk's LCD
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Helge,

I installed HP-UX on that box and it only displayed PCD state codes as linux does when you select only CONFIG_PDC_CHASSIS.
On that point, I think that CONFIG_PDC_CHASSIS and CONFIG_CHASSIS_LCD_LED should be mutually exclusive.
When you select CONFIG_CHASSIS_LCD_LED, you don't see the chassis state anymore but only the text from /proc/pdc/lcd.

How am I supposed to enable something like CONFIG_CHASSIS_LCD_LED in HP-UX and display random text ?


  Guy


On Thu, 16 Nov 2006 21:55:49 +0100
Helge Deller <deller@gmx.de> wrote:

> Hi Guy,
> 
> I'm not sure if the LCD display on KittyHawks is supposed to print the activity symbols.
> I think the best thing is to try it with HPUX. If HP-UX works, then something needs to be fixed.
> 
> Maybe HP-UX only uses the LCD display to print the LCD text (/proc/pdc/lcd) as well ?
> In this case you should try again to disable the led status symbols for KittyHawk machines only.
> 
> Helge
> 
> On Monday 13 November 2006 22:54, Guy Martin wrote:
> > Sorry for the missunderstanding.
> > 
> > It says this :
> > [42949382.500000] LED display at ffd0c000 registered
> > 
> > And nothing can be seen on the lcd since it's not detected and disabled.
> > /proc/pdc/lcd doesn't exists.
> > 
> > Do you know if this lcd is supposed to display the leds character ?
> > 
> > 
> >   Guy
> > 
> > 
> > On Sun, 12 Nov 2006 16:05:07 +0100
> > Helge Deller <deller@gmx.de> wrote:
> > 
> > > Hi Guy,
> > > 
> > > I think you misunderstood me.
> > > My idea was that you check what your machine's BIOS (PDC) returns for pdc_chassis_info().
> > > 
> > > So, if you would remove this code from led_init() you may test the results without this "workaround for KittyHawk":
> > >         /* Work around the buggy PDC of KittyHawk-machines */
> > >         switch (CPU_HVERSION) {
> > >         case 0x580:             /* KittyHawk DC2-100 (K100) */
> > >         case 0x581:             /* KittyHawk DC3-120 (K210) */
> > >         case 0x582:             /* KittyHawk DC3 100 (K400) */
> > >         case 0x583:             /* KittyHawk DC3 120 (K410) */
> > >         case 0x58B:             /* KittyHawk DC2 100 (K200) */
> > >                 printk(KERN_INFO "%s: KittyHawk-Machine (hversion 0x%x) found, "
> > >                                 "LED detection skipped.\n", __FILE__, CPU_HVERSION);
> > >                 goto found;     /* use the preinitialized values of lcd_info */
> > >         }
> > > 
> > > Helge
> > > 
> > > 
> > > On Sunday 12 November 2006 15:50, Guy Martin wrote:
> > > > 
> > > > Hi Helge,
> > > > 
> > > > This can't work. If you don't call register_led_driver(), led_func_ptr and led_type stay NULL and lcd_print() never prints anything.
> > > > You can change lcd_print() not to check led_func_ptr but I fear something may break if the device is not initialized :)
> > > > 
> > > > Maybe we could use static int initialized defined in register_led_driver and make it global to check if the device is ready or not.
> > > > 
> > > >   Guy
> > > > 
> > > > 
> > > > On Sun, 12 Nov 2006 15:04:38 +0100
> > > > Helge Deller <deller@gmx.de> wrote:
> > > > 
> > > > > Hi Guy,
> > > > > 
> > > > > On Sunday 12 November 2006 01:45, Guy Martin wrote:
> > > > > > I've noticed that the LCD on my K410 is filled at a constant rate with black characters.
> > > > > > After some investigation, it looked like the code updating the led status was filling the LCD.
> > > > > ....
> > > > > 
> > > > > instead of adding:
> > > > > +               no_led = 1;     /* no led support on KittyHawk */
> > > > >                 goto found;     /* use the preinitialized values of lcd_info */
> > > > > 
> > > > > did you tried to comment out the "goto found" ?
> > > > > 
> > > > > Helge
> > > > 
> > > > 
> > 
> > 



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On Thursday 16 November 2006 23:16, Mike Frysinger wrote:
> ok, just tried glibc-2.5 + hppa + linuxthreads and that is for sure broken
> (the defines for handling locking is all broken in the release)

yeah glibc-2.5 fails as well:
=2E.. -o /var/tmp/portage/cross-hppa2.0-unknown-linux-gnu/glibc-2.5
/work/build-default-hppa2.0-unknown-linux-gnu-nptl/csu/crtn.o
In file included from ../nptl/descr.h:30,
                 from ../ports/sysdeps/hppa/nptl/tls.h:63,
                 from ../include/tls.h:6,
                 from <stdin>:2:
=2E./ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h: In=20
function '__lll_mutex_trylock':
=2E./ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:113: error:=20
expected ':' or ')' before '-' token
=2E..

i leave adding snap updates to GMsoft ... i try to stick with releases sinc=
e i=20
have to help so many arches :/

> what is the minimal binutils/gcc versions for TLS support ?  binutils-2.17
> + gcc-4.1.1 =3D=3D no hppa TLS

upgraded to binutils-2.17.50.0.6 and i got TLS with gcc-4.1.1
=2Dmike

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> http://gcc.gnu.org/PR29114

This has nothing to do with the discussion about long double support.

>>>From the PR, this only occurs in a cross from 64-bit host to 32-bit target.
There's no 64-bit parisc-linux host...

It would appear that the adddi3 expander in pa.md isn't used for some
reason in the initial code expansion as it would reject the insn.  You
are in the best position to determine where the insn is being emitted from.
It could be being emitted from the generic code or the PA backend.  Try
breaks on emit_move_sequence, emit_insn, emit_insn_after or emit_insn_before
and see if you can find where the insn is being emitted.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: 64-bit long double support.
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On Friday 17 November 2006 00:35, John David Anglin wrote:
> > http://gcc.gnu.org/PR29114
>
> This has nothing to do with the discussion about long double support.

i didnt say it does ... i responding to the "testing NPTL in distros" comme=
nt

> From the PR, this only occurs in a cross from 64-bit host to 32-bit targe=
t.
> There's no 64-bit parisc-linux host...

i said that in my e-mail:
"plus, it makes it hard doing cross-compiles when my 64bit hosts"

> It would appear that the adddi3 expander in pa.md isn't used for some
> reason in the initial code expansion as it would reject the insn.  You
> are in the best position to determine where the insn is being emitted fro=
m.
> It could be being emitted from the generic code or the PA backend.  Try
> breaks on emit_move_sequence, emit_insn, emit_insn_after or
> emit_insn_before and see if you can find where the insn is being emitted.

erm, i've never debugged gcc before ... my experience involves producing=20
reduced test cases and getting others to verify/fix gcc :)

but if it'll be of help to people ...
=2Dmike

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On 11/16/06, Guy Martin <gmsoft@tuxicoman.be> wrote:
>
> Helge,
>
> I installed HP-UX on that box and it only displayed PCD state codes as linux does when you select only CONFIG_PDC_CHASSIS.
> On that point, I think that CONFIG_PDC_CHASSIS and CONFIG_CHASSIS_LCD_LED should be mutually exclusive.

Certainly not.

> When you select CONFIG_CHASSIS_LCD_LED, you don't see the chassis state anymore but only the text from /proc/pdc/lcd.

Wrong. You see whichever sent the last event. If the system is working
normaly you see the proc text, if it panic'd, you'll see a FLT
message. Besides, CONFIG_CHASSIS_LCD_LED drives the heartbeat, network
and disk symbols on the lcd as you know, so because there's a
"conflict" on the upper part of the lcd doesn't mean that you want to
make those mutually exclusive anyway.

I've coded this that way on purpose, and the wiki and config help are
(imho) explicit enough as to what will happen when you select both.
Selecting both does have a purpose.

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [parisc-linux] Re: 64-bit long double support.
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> > It would appear that the adddi3 expander in pa.md isn't used for some
> > reason in the initial code expansion as it would reject the insn.  You
> > are in the best position to determine where the insn is being emitted fro=
> m.
> > It could be being emitted from the generic code or the PA backend.  Try
> > breaks on emit_move_sequence, emit_insn, emit_insn_after or
> > emit_insn_before and see if you can find where the insn is being emitted.
> 
> erm, i've never debugged gcc before ... my experience involves producing=20
> reduced test cases and getting others to verify/fix gcc :)

If you add -v to the gcc command line, the driver will output the
command it uses to run cc1.  This is needed to debug cc1.

GCC is a volunteer based project, so help is always welcome.  I got
involved when similar issues affected the projects that I was working
on.

There's always bugs (e.g., mainline is currently broken for both 32
and 64 bits on hpux).  There are over 50 open PRs for hppa.  There
are more critical issues that need to be resolved for the upcoming
4.2.0 release.  Most people do native builds and the problem doesn't
appear there.  Fixing this requires finding a suitable 64-bit host to
debug it on.

This problem should be relatively easy to fix if we know where and
why the insn is being emitted.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: 64-bit long double support.
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On 16/11/06, Mike Frysinger <vapier@gentoo.org> wrote:
>
> On Thursday 16 November 2006 23:16, Mike Frysinger wrote:
> > ok, just tried glibc-2.5 + hppa + linuxthreads and that is for sure
> broken
> > (the defines for handling locking is all broken in the release)
>
> yeah glibc-2.5 fails as well:
> ... -o /var/tmp/portage/cross-hppa2.0-unknown-linux-gnu/glibc-2.5
> /work/build-default-hppa2.0-unknown-linux-gnu-nptl/csu/crtn.o
> In file included from ../nptl/descr.h:30,
>                  from ../ports/sysdeps/hppa/nptl/tls.h:63,
>                  from ../include/tls.h:6,
>                  from <stdin>:2:
> ../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h: In
> function '__lll_mutex_trylock':
> ../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:113: error:
> expected ':' or ')' before '-' token
> ...
>
> i leave adding snap updates to GMsoft ... i try to stick with releases
> since i
> have to help so many arches :/
>
> > what is the minimal binutils/gcc versions for TLS support ?
> binutils-2.17
> > + gcc-4.1.1 == no hppa TLS
>
> upgraded to binutils-2.17.50.0.6 and i got TLS with gcc-4.1.1
> -mike



If you want a reference implementation, we have this running in Ubuntu
Feisty now.




-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/

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On 16/11/06, <b class="gmail_sendername">Mike Frysinger</b> &lt;<a href="mailto:vapier@gentoo.org">vapier@gentoo.org</a>&gt; wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On Thursday 16 November 2006 23:16, Mike Frysinger wrote:<br>&gt; ok, just tried glibc-2.5 + hppa + linuxthreads and that is for sure broken<br>&gt; (the defines for handling locking is all broken in the release)<br><br>yeah 
glibc-2.5 fails as well:<br>... -o /var/tmp/portage/cross-hppa2.0-unknown-linux-gnu/glibc-2.5<br>/work/build-default-hppa2.0-unknown-linux-gnu-nptl/csu/crtn.o<br>In file included from ../nptl/descr.h:30,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ../ports/sysdeps/hppa/nptl/tls.h:63,
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ../include/tls.h:6,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from &lt;stdin&gt;:2:<br>../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h: In<br>function '__lll_mutex_trylock':<br>../ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h:113: error:
<br>expected ':' or ')' before '-' token<br>...<br><br>i leave adding snap updates to GMsoft ... i try to stick with releases since i<br>have to help so many arches :/<br><br>&gt; what is the minimal binutils/gcc versions for TLS support ?&nbsp;&nbsp;
binutils-2.17<br>&gt; + gcc-4.1.1 == no hppa TLS<br><br>upgraded to binutils-2.17.50.0.6 and i got TLS with gcc-4.1.1<br>-mike</blockquote><div><br><br>If you want a reference implementation, we have this running in Ubuntu Feisty now. 
<br></div><br></div><br><br clear="all"><br>-- <br>Jeff Bailey - <a href="http://www.raspberryginger.com/jbailey/">http://www.raspberryginger.com/jbailey/</a>

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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] LBA PCI : avoid crash when pluging a pcmcia bridge
Date: Fri, 17 Nov 2006 13:30:42 -0700
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To: Guy Martin <gmsoft@tuxicoman.be>
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On Wed, Nov 15, 2006 at 07:08:30PM +0100, Guy Martin wrote:
> I've put the complete dmesg and lspci output (both numerical and not) here :
> https://www.tuxicoman.be/temp/c3600-pci-debug.logs

Thanks.  Please try this patch (cribbed somewhat from jejb's patch for
Dino back in December 2003 ;-)

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index ad4a1a1..963f35c 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1406,6 +1406,14 @@ lba_hw_init(struct lba_device *d)
 	return 0;
 }
 
+/*
+ * Unfortunately, when firmware numbers busses, it doesn't take into account
+ * Cardbus bridges.  So we have to renumber the busses to suit ourselves.
+ * Elroy/Mercury don't actually know what bus number they're attached to;
+ * we use bus 0 to indicate the directly attached bus and any other bus
+ * number will be taken care of by the PCI-PCI bridge.
+ */
+static unsigned int lba_next_bus = 0;
 
 
 /*
@@ -1529,16 +1537,20 @@ lba_driver_probe(struct parisc_device *d
 		lba_legacy_resources(dev, lba_dev);
 	}
 
-	/* 
-	** Tell PCI support another PCI bus was found.
-	** Walks PCI bus for us too.
-	*/
+	if (lba_dev->hba.bus_num.start < lba_next_bus) {
+		DBG(KERN_DEBUG "Reassigning firmware bus %d as Linux bus %d\n",
+			lba_dev->hba.bus_num.start, lba_next_bus);
+		lba_dev->hba.bus_num.start = lba_next_bus;
+	}
+
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
 		pci_scan_bus_parented(&dev->dev, lba_dev->hba.bus_num.start,
 				cfg_ops, NULL);
-	if (lba_bus)
+	if (lba_bus) {
+		lba_next_bus = lba_bus->subordinate + 1;
 		pci_bus_add_devices(lba_bus);
+	}
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] gcc ICE PR29114 (was: 64-bit long double support.)
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> i've attached my gdb run ... i'm not familiar with gcc so i dont know what 
> more information you need to see to debug

Excellent progress.

> Breakpoint 1, emit_move_sequence (operands=0x7c3908288900, mode=DImode, scratch_reg=0x0)
>     at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/config/pa/pa.c:1309
> 1309	{

What we need to see is the backtrace when emit_move_sequence (or emit_insn)
is called with operands that match those in the insn that causes the ICE below.
This will localize the area of the problem.

In the call to emit_move_sequence, operands is an array.  operands[0] is
the DEST for the move operation.  operands[1] is the SRC.

You can see the RTL for the first two operands with the commands:

p debug_rtl (operands[0])
p debug_rtl (operands[1])

In the break at emit_insn,

p debug_rtl (x)

will print "x" in formated form.

Other useful GCC debug commands:

p debug_rtl_list (INSN, N)
where INSN is an instruction RTX.  This will print N insns.

p debug_tree (TREE)
where TREE is a tree variable will print out the tree struct.

p operands[0]
will print operands[0] as a C struct.

ptype operands[0]
will show the RTX type details.  This is useful for figuring
out how to set a conditional break that will check for "reg:DI 95".

> ../seed48_r.i: In function 'main':
> ../seed48_r.i:1: error: unrecognizable insn:
> (insn 9 8 10 1 (set (reg:DI 95)
>         (plus:DI (reg:DI 96)
>             (const_int -6547 [0xffffffffffffe66d]))) -1 (nil)
>     (expr_list:REG_EQUAL (const_int 25214903917 [0x5deece66d])
>         (nil)))
> ../seed48_r.i:1: internal compiler error: in extract_insn, at recog.c:2084
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://gcc.gnu.org/bugs.html> for instructions.
> 
> Program exited with code 01.
> (gdb) 

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] gcc ICE PR29114 (was: 64-bit long double support.)
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On Friday 17 November 2006 15:51, John David Anglin wrote:
> What we need to see is the backtrace when emit_move_sequence (or emit_insn)
> is called with operands that match those in the insn that causes the ICE
> below. This will localize the area of the problem.

updated trace with automatic pretty prints attached to each breakpoint
-mike

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--nextPart13722945.0gQrkoDFji--

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	filename="gdb-run"

$ gdb
Using host libthread_db library "/lib/libthread_db.so.1".
Breakpoint 1 at 0x72eeea: file /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/config/pa/pa.c, line 1310.
Breakpoint 2 at 0x5878c5: file /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c, line 4433.
Breakpoint 3 at 0x587388: file /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c, line 4260.
Breakpoint 4 at 0x587670: file /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c, line 4354.
GNU C version 4.1.2 20061117 (prerelease) (hppa2.0-unknown-linux-gnu)
	compiled by GNU C version 4.1.1 (Gentoo 4.1.1-r2).
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 75c21c80b69b3dedab682219e007845e

Breakpoint 2, emit_insn (x=0x0) at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c:4433
4433	  rtx last = last_insn;
(gdb) c
Continuing.

Breakpoint 1, emit_move_sequence (operands=0x70c27856bec0, mode=DImode, scratch_reg=0x0)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/config/pa/pa.c:1310
1310	  register rtx operand0 = operands[0];
$1 = {code = MEM, mode = DImode, jump = 0, call = 1, unchanging = 0, volatil = 0, in_struct = 0, used = 0, 
  frame_related = 0, return_val = 1, u = {fld = {{rt_int = -1009418144, rt_uint = 3285549152, 
        rt_str = 0x3204c3d58060 "\"", rt_rtx = 0x3204c3d58060, rt_rtvec = 0x3204c3d58060, 
        rt_type = 3285549152, rt_addr_diff_vec_flags = {min_align = 96, base_after_vec = 0, 
          min_after_vec = 0, max_after_vec = 0, min_after_base = 0, max_after_base = 0, 
          offset_unsigned = 0, scale = 213}, rt_cselib = 0x3204c3d58060, rt_bit = 0x3204c3d58060, 
        rt_tree = 0x3204c3d58060, rt_bb = 0x3204c3d58060, rt_mem = 0x3204c3d58060, 
        rt_reg = 0x3204c3d58060}}, hwint = {54996046807136}, rv = {cl = 0, sign = 0, signalling = 0, 
      canonical = 0, uexp = 102673411, sig = {54996047739472, 0, 458786}}}}
$2 = {code = CONST_INT, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = -554899859, rt_uint = 3740067437, 
        rt_str = 0x5deece66d <Address 0x5deece66d out of bounds>, rt_rtx = 0x5deece66d, 
        rt_rtvec = 0x5deece66d, rt_type = 3740067437, rt_addr_diff_vec_flags = {min_align = 109, 
          base_after_vec = 0, min_after_vec = 1, max_after_vec = 1, min_after_base = 0, max_after_base = 0, 
          offset_unsigned = 1, scale = 236}, rt_cselib = 0x5deece66d, rt_bit = 0x5deece66d, 
        rt_tree = 0x5deece66d, rt_bb = 0x5deece66d, rt_mem = 0x5deece66d, rt_reg = 0x5deece66d}}, hwint = {
      25214903917}, rv = {cl = 1, sign = 1, signalling = 1, canonical = 0, uexp = 116877107, sig = {0, 0, 
        0}}}}
(gdb) 
Continuing.

Breakpoint 1, emit_move_sequence (operands=0x70c27856bb80, mode=DImode, scratch_reg=0x0)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/config/pa/pa.c:1310
1310	  register rtx operand0 = operands[0];
$3 = {code = REG, mode = DImode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, used = 0, 
  frame_related = 0, return_val = 0, u = {fld = {{rt_int = 95, rt_uint = 95, 
        rt_str = 0x5f <Address 0x5f out of bounds>, rt_rtx = 0x5f, rt_rtvec = 0x5f, rt_type = 95, 
        rt_addr_diff_vec_flags = {min_align = 95, base_after_vec = 0, min_after_vec = 0, max_after_vec = 0, 
          min_after_base = 0, max_after_base = 0, offset_unsigned = 0, scale = 0}, rt_cselib = 0x5f, 
        rt_bit = 0x5f, rt_tree = 0x5f, rt_bb = 0x5f, rt_mem = 0x5f, rt_reg = 0x5f}}, hwint = {95}, rv = {
      cl = 3, sign = 1, signalling = 1, canonical = 1, uexp = 2, sig = {95, 0, 0}}}}
$4 = {code = CONST_INT, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = -554899859, rt_uint = 3740067437, 
        rt_str = 0x5deece66d <Address 0x5deece66d out of bounds>, rt_rtx = 0x5deece66d, 
        rt_rtvec = 0x5deece66d, rt_type = 3740067437, rt_addr_diff_vec_flags = {min_align = 109, 
          base_after_vec = 0, min_after_vec = 1, max_after_vec = 1, min_after_base = 0, max_after_base = 0, 
          offset_unsigned = 1, scale = 236}, rt_cselib = 0x5deece66d, rt_bit = 0x5deece66d, 
        rt_tree = 0x5deece66d, rt_bb = 0x5deece66d, rt_mem = 0x5deece66d, rt_reg = 0x5deece66d}}, hwint = {
      25214903917}, rv = {cl = 1, sign = 1, signalling = 1, canonical = 0, uexp = 116877107, sig = {0, 0, 
        0}}}}
(gdb) 
Continuing.

Breakpoint 2, emit_insn (x=0x3204c3e31740)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c:4433
4433	  rtx last = last_insn;
$5 = {code = SET, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = -1008527584, rt_uint = 3286439712, 
        rt_str = 0x3204c3e31720 "\"", rt_rtx = 0x3204c3e31720, rt_rtvec = 0x3204c3e31720, 
        rt_type = 3286439712, rt_addr_diff_vec_flags = {min_align = 32, base_after_vec = 1, 
          min_after_vec = 1, max_after_vec = 1, min_after_base = 0, max_after_base = 1, 
          offset_unsigned = 0, scale = 227}, rt_cselib = 0x3204c3e31720, rt_bit = 0x3204c3e31720, 
        rt_tree = 0x3204c3e31720, rt_bb = 0x3204c3e31720, rt_mem = 0x3204c3e31720, 
        rt_reg = 0x3204c3e31720}}, hwint = {54996047697696}, rv = {cl = 0, sign = 0, signalling = 0, 
      canonical = 0, uexp = 102701241, sig = {54996046949248, 0, 0}}}}
(gdb) 
Continuing.

Breakpoint 1, emit_move_sequence (operands=0x70c27856b8c0, mode=DImode, scratch_reg=0x0)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/config/pa/pa.c:1310
1310	  register rtx operand0 = operands[0];
$6 = {code = REG, mode = DImode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, used = 0, 
  frame_related = 0, return_val = 0, u = {fld = {{rt_int = 95, rt_uint = 95, 
        rt_str = 0x5f <Address 0x5f out of bounds>, rt_rtx = 0x5f, rt_rtvec = 0x5f, rt_type = 95, 
        rt_addr_diff_vec_flags = {min_align = 95, base_after_vec = 0, min_after_vec = 0, max_after_vec = 0, 
          min_after_base = 0, max_after_base = 0, offset_unsigned = 0, scale = 0}, rt_cselib = 0x5f, 
        rt_bit = 0x5f, rt_tree = 0x5f, rt_bb = 0x5f, rt_mem = 0x5f, rt_reg = 0x5f}}, hwint = {95}, rv = {
      cl = 3, sign = 1, signalling = 1, canonical = 1, uexp = 2, sig = {95, 0, 0}}}}
$7 = {code = PLUS, mode = DImode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, used = 0, 
  frame_related = 0, return_val = 0, u = {fld = {{rt_int = -1008527584, rt_uint = 3286439712, 
        rt_str = 0x3204c3e31720 "\"", rt_rtx = 0x3204c3e31720, rt_rtvec = 0x3204c3e31720, 
        rt_type = 3286439712, rt_addr_diff_vec_flags = {min_align = 32, base_after_vec = 1, 
          min_after_vec = 1, max_after_vec = 1, min_after_base = 0, max_after_base = 1, 
          offset_unsigned = 0, scale = 227}, rt_cselib = 0x3204c3e31720, rt_bit = 0x3204c3e31720, 
        rt_tree = 0x3204c3e31720, rt_bb = 0x3204c3e31720, rt_mem = 0x3204c3e31720, 
        rt_reg = 0x3204c3e31720}}, hwint = {54996047697696}, rv = {cl = 0, sign = 0, signalling = 0, 
      canonical = 0, uexp = 102701241, sig = {54996046949264, 0, 54996046836352}}}}
(gdb) 
Continuing.

Breakpoint 2, emit_insn (x=0x3204c3e317a0)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c:4433
4433	  rtx last = last_insn;
$8 = {code = SET, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = -1008527648, rt_uint = 3286439648, 
        rt_str = 0x3204c3e316e0 "\"", rt_rtx = 0x3204c3e316e0, rt_rtvec = 0x3204c3e316e0, 
        rt_type = 3286439648, rt_addr_diff_vec_flags = {min_align = 224, base_after_vec = 0, 
          min_after_vec = 1, max_after_vec = 1, min_after_base = 0, max_after_base = 1, 
          offset_unsigned = 0, scale = 227}, rt_cselib = 0x3204c3e316e0, rt_bit = 0x3204c3e316e0, 
        rt_tree = 0x3204c3e316e0, rt_bb = 0x3204c3e316e0, rt_mem = 0x3204c3e316e0, 
        rt_reg = 0x3204c3e316e0}}, hwint = {54996047697632}, rv = {cl = 0, sign = 0, signalling = 0, 
      canonical = 0, uexp = 102701239, sig = {54996047697760, 0, 0}}}}
(gdb) 
Continuing.

Breakpoint 2, emit_insn (x=0x3204c3d5f2d0)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c:4433
4433	  rtx last = last_insn;
$9 = {code = INSN, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = 9, rt_uint = 9, 
        rt_str = 0x9 <Address 0x9 out of bounds>, rt_rtx = 0x9, rt_rtvec = 0x9, rt_type = TImode, 
        rt_addr_diff_vec_flags = {min_align = 9, base_after_vec = 0, min_after_vec = 0, max_after_vec = 0, 
          min_after_base = 0, max_after_base = 0, offset_unsigned = 0, scale = 0}, rt_cselib = 0x9, 
        rt_bit = 0x9, rt_tree = 0x9, rt_bb = 0x9, rt_mem = 0x9, rt_reg = 0x9}}, hwint = {9}, rv = {cl = 1, 
      sign = 0, signalling = 1, canonical = 0, uexp = 0, sig = {0, 0, 0}}}}
(gdb) 
Continuing.

Breakpoint 2, emit_insn (x=0x3204c3d5f280)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c:4433
4433	  rtx last = last_insn;
$10 = {code = INSN, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = 8, rt_uint = 8, 
        rt_str = 0x8 <Address 0x8 out of bounds>, rt_rtx = 0x8, rt_rtvec = 0x8, rt_type = DImode, 
        rt_addr_diff_vec_flags = {min_align = 8, base_after_vec = 0, min_after_vec = 0, max_after_vec = 0, 
          min_after_base = 0, max_after_base = 0, offset_unsigned = 0, scale = 0}, rt_cselib = 0x8, 
        rt_bit = 0x8, rt_tree = 0x8, rt_bb = 0x8, rt_mem = 0x8, rt_reg = 0x8}}, hwint = {8}, rv = {cl = 0, 
      sign = 0, signalling = 1, canonical = 0, uexp = 0, sig = {0, 54996046836432, 0}}}}
(gdb) 
Continuing.

Breakpoint 2, emit_insn (x=0x3204c3e317e0)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c:4433
4433	  rtx last = last_insn;
$11 = {code = SET, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = -1008527872, rt_uint = 3286439424, 
        rt_str = 0x3204c3e31600 "'", rt_rtx = 0x3204c3e31600, rt_rtvec = 0x3204c3e31600, 
        rt_type = 3286439424, rt_addr_diff_vec_flags = {min_align = 0, base_after_vec = 0, 
          min_after_vec = 1, max_after_vec = 1, min_after_base = 0, max_after_base = 1, 
          offset_unsigned = 0, scale = 227}, rt_cselib = 0x3204c3e31600, rt_bit = 0x3204c3e31600, 
        rt_tree = 0x3204c3e31600, rt_bb = 0x3204c3e31600, rt_mem = 0x3204c3e31600, 
        rt_reg = 0x3204c3e31600}}, hwint = {54996047697408}, rv = {cl = 0, sign = 0, signalling = 0, 
      canonical = 0, uexp = 102701232, sig = {54996047697632, 0, 0}}}}
(gdb) 
Continuing.

Breakpoint 2, emit_insn (x=0x3204c3d5f280)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c:4433
4433	  rtx last = last_insn;
$12 = {code = INSN, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = 8, rt_uint = 8, 
        rt_str = 0x8 <Address 0x8 out of bounds>, rt_rtx = 0x8, rt_rtvec = 0x8, rt_type = DImode, 
        rt_addr_diff_vec_flags = {min_align = 8, base_after_vec = 0, min_after_vec = 0, max_after_vec = 0, 
          min_after_base = 0, max_after_base = 0, offset_unsigned = 0, scale = 0}, rt_cselib = 0x8, 
        rt_bit = 0x8, rt_tree = 0x8, rt_bb = 0x8, rt_mem = 0x8, rt_reg = 0x8}}, hwint = {8}, rv = {cl = 0, 
      sign = 0, signalling = 1, canonical = 0, uexp = 0, sig = {0, 54996046836432, 0}}}}
(gdb) 
Continuing.

Breakpoint 1, emit_move_sequence (operands=0x70c27856c780, mode=SImode, scratch_reg=0x0)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/config/pa/pa.c:1310
1310	  register rtx operand0 = operands[0];
$13 = {code = REG, mode = SImode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, used = 0, 
  frame_related = 0, return_val = 1, u = {fld = {{rt_int = 28, rt_uint = 28, 
        rt_str = 0x1c <Address 0x1c out of bounds>, rt_rtx = 0x1c, rt_rtvec = 0x1c, rt_type = 28, 
        rt_addr_diff_vec_flags = {min_align = 28, base_after_vec = 0, min_after_vec = 0, max_after_vec = 0, 
          min_after_base = 0, max_after_base = 0, offset_unsigned = 0, scale = 0}, rt_cselib = 0x1c, 
        rt_bit = 0x1c, rt_tree = 0x1c, rt_bb = 0x1c, rt_mem = 0x1c, rt_reg = 0x1c}}, hwint = {28}, rv = {
      cl = 0, sign = 1, signalling = 1, canonical = 1, uexp = 0, sig = {28, 0, 54996047741248}}}}
$14 = {code = REG, mode = SImode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, used = 0, 
  frame_related = 0, return_val = 0, u = {fld = {{rt_int = 94, rt_uint = 94, 
        rt_str = 0x5e <Address 0x5e out of bounds>, rt_rtx = 0x5e, rt_rtvec = 0x5e, rt_type = 94, 
        rt_addr_diff_vec_flags = {min_align = 94, base_after_vec = 0, min_after_vec = 0, max_after_vec = 0, 
          min_after_base = 0, max_after_base = 0, offset_unsigned = 0, scale = 0}, rt_cselib = 0x5e, 
        rt_bit = 0x5e, rt_tree = 0x5e, rt_bb = 0x5e, rt_mem = 0x5e, rt_reg = 0x5e}}, hwint = {94}, rv = {
      cl = 2, sign = 1, signalling = 1, canonical = 1, uexp = 2, sig = {94, 54996046949216, 458786}}}}
(gdb) 
Continuing.

Breakpoint 2, emit_insn (x=0x3204c3e31800)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c:4433
4433	  rtx last = last_insn;
$15 = {code = SET, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = -1008527712, rt_uint = 3286439584, 
        rt_str = 0x3204c3e316a0 "\"", rt_rtx = 0x3204c3e316a0, rt_rtvec = 0x3204c3e316a0, 
        rt_type = 3286439584, rt_addr_diff_vec_flags = {min_align = 160, base_after_vec = 0, 
          min_after_vec = 1, max_after_vec = 1, min_after_base = 0, max_after_base = 1, 
          offset_unsigned = 0, scale = 227}, rt_cselib = 0x3204c3e316a0, rt_bit = 0x3204c3e316a0, 
        rt_tree = 0x3204c3e316a0, rt_bb = 0x3204c3e316a0, rt_mem = 0x3204c3e316a0, 
        rt_reg = 0x3204c3e316a0}}, hwint = {54996047697568}, rv = {cl = 0, sign = 0, signalling = 0, 
      canonical = 0, uexp = 102701237, sig = {54996047697504, 0, 0}}}}
(gdb) 
Continuing.

Breakpoint 2, emit_insn (x=0x3204c3d5f370)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c:4433
4433	  rtx last = last_insn;
$16 = {code = INSN, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = 14, rt_uint = 14, 
        rt_str = 0xe <Address 0xe out of bounds>, rt_rtx = 0xe, rt_rtvec = 0xe, rt_type = CHImode, 
        rt_addr_diff_vec_flags = {min_align = 14, base_after_vec = 0, min_after_vec = 0, max_after_vec = 0, 
          min_after_base = 0, max_after_base = 0, offset_unsigned = 0, scale = 0}, rt_cselib = 0xe, 
        rt_bit = 0xe, rt_tree = 0xe, rt_bb = 0xe, rt_mem = 0xe, rt_reg = 0xe}}, hwint = {14}, rv = {cl = 2, 
      sign = 1, signalling = 1, canonical = 0, uexp = 0, sig = {0, 0, 0}}}}
(gdb) 
Continuing.

Breakpoint 2, emit_insn (x=0x3204c3d7aba0)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c:4433
4433	  rtx last = last_insn;
$17 = {code = CLOBBER, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = -1008527712, rt_uint = 3286439584, 
        rt_str = 0x3204c3e316a0 "\"", rt_rtx = 0x3204c3e316a0, rt_rtvec = 0x3204c3e316a0, 
        rt_type = 3286439584, rt_addr_diff_vec_flags = {min_align = 160, base_after_vec = 0, 
          min_after_vec = 1, max_after_vec = 1, min_after_base = 0, max_after_base = 1, 
          offset_unsigned = 0, scale = 227}, rt_cselib = 0x3204c3e316a0, rt_bit = 0x3204c3e316a0, 
        rt_tree = 0x3204c3e316a0, rt_bb = 0x3204c3e316a0, rt_mem = 0x3204c3e316a0, 
        rt_reg = 0x3204c3e316a0}}, hwint = {54996047697568}, rv = {cl = 0, sign = 0, signalling = 0, 
      canonical = 0, uexp = 102701237, sig = {0, 0, 0}}}}
(gdb) 
Continuing.

Breakpoint 2, emit_insn (x=0x3204c3d7abb0)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c:4433
4433	  rtx last = last_insn;
$18 = {code = CLOBBER, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = -1008527776, rt_uint = 3286439520, 
        rt_str = 0x3204c3e31660 "\"", rt_rtx = 0x3204c3e31660, rt_rtvec = 0x3204c3e31660, 
        rt_type = 3286439520, rt_addr_diff_vec_flags = {min_align = 96, base_after_vec = 0, 
          min_after_vec = 1, max_after_vec = 1, min_after_base = 0, max_after_base = 1, 
          offset_unsigned = 0, scale = 227}, rt_cselib = 0x3204c3e31660, rt_bit = 0x3204c3e31660, 
        rt_tree = 0x3204c3e31660, rt_bb = 0x3204c3e31660, rt_mem = 0x3204c3e31660, 
        rt_reg = 0x3204c3e31660}}, hwint = {54996047697504}, rv = {cl = 0, sign = 0, signalling = 0, 
      canonical = 0, uexp = 102701235, sig = {0, 0, 0}}}}
(gdb) 
Continuing.

Breakpoint 3, emit_insn_after (pattern=0x3204c3d5f3c0, after=0x3204c3e3c400)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c:4260
4260	  if (INSN_P (after))
$19 = {code = INSN, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = 15, rt_uint = 15, 
        rt_str = 0xf <Address 0xf out of bounds>, rt_rtx = 0xf, rt_rtvec = 0xf, rt_type = CSImode, 
        rt_addr_diff_vec_flags = {min_align = 15, base_after_vec = 0, min_after_vec = 0, max_after_vec = 0, 
          min_after_base = 0, max_after_base = 0, offset_unsigned = 0, scale = 0}, rt_cselib = 0xf, 
        rt_bit = 0xf, rt_tree = 0xf, rt_bb = 0xf, rt_mem = 0xf, rt_reg = 0xf}}, hwint = {15}, rv = {cl = 3, 
      sign = 1, signalling = 1, canonical = 0, uexp = 0, sig = {0, 54996046836752, 0}}}}
$20 = {code = NOTE, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = 11, rt_uint = 11, 
        rt_str = 0xb <Address 0xb out of bounds>, rt_rtx = 0xb, rt_rtvec = 0xb, rt_type = DFmode, 
        rt_addr_diff_vec_flags = {min_align = 11, base_after_vec = 0, min_after_vec = 0, max_after_vec = 0, 
          min_after_base = 0, max_after_base = 0, offset_unsigned = 0, scale = 0}, rt_cselib = 0xb, 
        rt_bit = 0xb, rt_tree = 0xb, rt_bb = 0xb, rt_mem = 0xb, rt_reg = 0xb}}, hwint = {11}, rv = {cl = 3, 
      sign = 0, signalling = 1, canonical = 0, uexp = 0, sig = {54996046836512, 54996046836272, 0}}}}
(gdb) 
Continuing.

Breakpoint 2, emit_insn (x=0x3204c3d7abc0)
    at /usr/local/src/gnu/gcc/branches/gcc-4_1-branch/gcc/emit-rtl.c:4433
4433	  rtx last = last_insn;
$21 = {code = USE, mode = VOIDmode, jump = 0, call = 0, unchanging = 0, volatil = 0, in_struct = 0, 
  used = 0, frame_related = 0, return_val = 0, u = {fld = {{rt_int = -1008527712, rt_uint = 3286439584, 
        rt_str = 0x3204c3e316a0 "\"", rt_rtx = 0x3204c3e316a0, rt_rtvec = 0x3204c3e316a0, 
        rt_type = 3286439584, rt_addr_diff_vec_flags = {min_align = 160, base_after_vec = 0, 
          min_after_vec = 1, max_after_vec = 1, min_after_base = 0, max_after_base = 1, 
          offset_unsigned = 0, scale = 227}, rt_cselib = 0x3204c3e316a0, rt_bit = 0x3204c3e316a0, 
        rt_tree = 0x3204c3e316a0, rt_bb = 0x3204c3e316a0, rt_mem = 0x3204c3e316a0, 
        rt_reg = 0x3204c3e316a0}}, hwint = {54996047697568}, rv = {cl = 0, sign = 0, signalling = 0, 
      canonical = 0, uexp = 102701237, sig = {0, 0, 0}}}}
(gdb) 
Continuing.
../seed48_r.i: In function 'main':
../seed48_r.i:1: error: unrecognizable insn:
(insn 9 8 10 1 (set (reg:DI 95)
        (plus:DI (reg:DI 96)
            (const_int -6547 [0xffffffffffffe66d]))) -1 (nil)
    (expr_list:REG_EQUAL (const_int 25214903917 [0x5deece66d])
        (nil)))
../seed48_r.i:1: internal compiler error: in extract_insn, at recog.c:2084
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Program exited with code 01.
(gdb) 

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Subject: Re: [parisc-linux] gcc ICE PR29114 (was: 64-bit long double support.)
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On Friday 17 November 2006 16:12, Mike Frysinger wrote:
> updated trace with automatic pretty prints attached to each breakpoint

here's the .gdbinit i'm using btw
-mike

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file gcc/cc1
set args -fpreprocessed ../seed48_r.i -quiet -dumpbase seed48_r.i -auxbase seed48_r -version -o /tmp/cc9E3kFl.s

b emit_move_sequence
b emit_insn
b emit_insn_after
b emit_insn_before
commands 1
	print *operands[0]
	print *operands[1]
end
commands 2
	if x > 0
		print *x
	end
end
commands 3
	p *pattern
	p *after
end
r

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Subject: Re: [parisc-linux] gcc ICE PR29114 (was: 64-bit long double support.)
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On Friday 17 November 2006 16:49, John David Anglin wrote:
> Would you generate a backtrace for this breakpoint?

ive gotta take off for a while, so i've generated a core at that break poin=
t=20
and uploaded it here:
http://dev.gentoo.org/~vapier/hppa/
hope it helps
=2Dmike

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Hello Matthew,

I tried the patch and it fixes the issue. lba_bus is never NULL.

However, the pcmcia bridge is not useable yet but I guess some more work needs to be done to have it working.

Full dmesg and lspci with the new bus id :
https://www.tuxicoman.be/temp/c3600-pci-debug.logs2

  Guy


On Fri, 17 Nov 2006 13:30:42 -0700
Matthew Wilcox <matthew@wil.cx> wrote:

> On Wed, Nov 15, 2006 at 07:08:30PM +0100, Guy Martin wrote:
> > I've put the complete dmesg and lspci output (both numerical and not) here :
> > https://www.tuxicoman.be/temp/c3600-pci-debug.logs
> 
> Thanks.  Please try this patch (cribbed somewhat from jejb's patch for
> Dino back in December 2003 ;-)
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On Sat, Nov 18, 2006 at 12:21:03PM +0100, Guy Martin wrote:
> I tried the patch and it fixes the issue. lba_bus is never NULL.

Excellent.  I'll check it in, without the debug printk (there's already
enough information to determine what's going on)

> However, the pcmcia bridge is not useable yet but I guess some more work needs to be done to have it working.
> 
> Full dmesg and lspci with the new bus id :
> https://www.tuxicoman.be/temp/c3600-pci-debug.logs2

I suspect the next problem is getting IRQs working:

iosapic: 0xfed32800 : no IRT entry for slot 6, pin 1
iosapic: no IRTE for 0000:01:06.0 (IRQ not connected?)

Grant, any thoughts?
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The HP-PARISC processor has no 128-bit hardware floating point
support. In HPUX the 128-bit long double support is all in software.
After years of trying we have come to the conclusion that the HPUX
128-bit long double support will never be released into the public.

It was the conclusion of the community that we would use 64-bit long
double, a type which would be identical to double.

The goal is to get `long double' fixed for hppa-linux. You might ask
what is broken?

1. GCC at one point assumed `long double' was 96-bits (fixed, 64-bits)
2. GLIBC at one point asumed `long double' was 128-bits (fixed, 64-bits)
3. GLIBC headers do not export `xxxxl' (long double) variants of the
math functions.
     = The fix is to undef __NO_LONG_DOUBLE_MATH in your own version
of mathdefs.h
4. GLIBC doesn't test `long double' support.
     = Hack up math/Makefile to have a finer control over building and
testing long doubles.

I have patches for 3, and 4. The patch for 3 will "turn on" 64-bit
`long double' math functions in our headers. The patch for 4 will
reveal that "lrintl" and "lroundl" are probably broken in some
rounding cases.

There was mention of using gcc to support "double double" and use 2x
64-bit doubles. Unfortunately I think this road would be paved with
lots of debugging, a new ABI, and more headaches for little reward.
Remember our goal "fix long double support."

Is there any opposition to checking in the fix for 3?
Speak now or forever hold your peace.

... or until Kyle writes the 128-bit long double support library,
makes it fast, and we transition our ABI (there are provisions for
this already).

Cheers,
Carlos.
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On Sat, 2006-11-18 at 06:56 -0700, Matthew Wilcox wrote:
> I suspect the next problem is getting IRQs working:
> 
> iosapic: 0xfed32800 : no IRT entry for slot 6, pin 1
> iosapic: no IRTE for 0000:01:06.0 (IRQ not connected?)

Yes ... that was exactly the same as for dino.  There's a piece of
fiddle code in the dino to guess where the interrupt actually is and
wire it up ...

In this case, it just looks like you need to fill in the IRT entry.

James


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> Is there any opposition to checking in the fix for 3?
> Speak now or forever hold your peace.

Do it before I change my mind...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 11/16/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > Is there any opposition to checking in the fix for 3?
> > Speak now or forever hold your peace.
>
> Do it before I change my mind...

Trimming libc-alpha from the list.

Joseph Myers caught me on IRC at work and commented:
"... if you want 128-bit IEEE quad long double support, soft-fp should
work fine ..."

While I believe "work fine" is a relative term, it would require more
work than we have time for right now. I think there are more fun
projects to work on than this. For example I think gdb could use some
TLC for hppa.

Not only that but I have to help bootstrap distros using NPTL.
*waves to ubuntu and gentoo guys*

Don't let me stop you from working on doing a 128-bit IEEE quad long
double support. I will gladly do the "symbol transition" dance if you
get it implemented in gcc.

Cheers,
Carlos.
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On Thursday 16 November 2006 22:48, Carlos O'Donell wrote:
> Not only that but I have to help bootstrap distros using NPTL.
> *waves to ubuntu and gentoo guys*

i tried gcc-4.1.1/glibc-2.5 for hppa already and i thought it was broken ..=
=2E=20
plus, it makes it hard doing cross-compiles when my 64bit hosts (which i=20
wh0re a lot because they're the fast ones) induce ICEs when building=20
glibc/uclibc
http://gcc.gnu.org/PR29114
=2Dmike

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On Thursday 16 November 2006 23:10, Mike Frysinger wrote:
> On Thursday 16 November 2006 22:48, Carlos O'Donell wrote:
> > Not only that but I have to help bootstrap distros using NPTL.
> > *waves to ubuntu and gentoo guys*
>
> i tried gcc-4.1.1/glibc-2.5 for hppa already and i thought it was broken

ok, just tried glibc-2.5 + hppa + linuxthreads and that is for sure broken=
=20
(the defines for handling locking is all broken in the release)

what is the minimal binutils/gcc versions for TLS support ?  binutils-2.17 =
+=20
gcc-4.1.1 =3D=3D no hppa TLS
=2Dmike

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From: "Michael S. Zick" <mszick@morethan.org>
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Subject: Re: [parisc-linux] Debian etch rc1 & daily build install fail on C160
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On Tue November 21 2006 03:36, Kurt Fitzner wrote:
> I've tried installing Debian Etch rc1 and yesterday's daily build on my
> C160, and both fail.  The installation itself seems to work fine, but
> when it boots after, it can't find the root partition.
> 
> I don't know if it's because the kernel doesn't have the SCSI driver I
> need, or if I'm running into the issue listed on the errata:
> 
> Disk devices may change on reboot
>   On systems with multiple diskcontrollers, the kernel/udev may assign
>   a different device node on reboot of the system than was used during
>   installation due to difference in load order of drivers.
>   This can lead to failure to boot the system. In most cases this can be
>   rectified changing the bootloader configuration and /etc/fstab,
>   possibly using the rescue mode of the installer.
> 
>   Note however that this problem may occur again on subsequent boots.
>   Fixing this issue has priority for the next release of Debian
>   installer.
>

The "etch" system is setup to handle discovery order for cd's and
network interfaces while keeping device names the same.  

The scsi rules are not set up to stabilize the assignments in a similar 
manner, but should be easy to fix.

Look in /etc/udev/ and /etc/udev/rules.d 

- tweak /etc/udev/persistent.rules
to work the same as the pair: /etc/udev/persistent-net-generator.rules
and /etc/udev/rules.d/z25_persistent-net.rules

I.E: Turn /etc/udev/persistent.rules into a "generator" of
/etc/udev/rules.d/z20_persistent_scsi.rules
and
rename the /etc/udev/rules.d/z20_persistent.rules link into
/etc/udev/rules.d/z23_persistent.rules so that it will be
run if the corresponding "generator" has not been run.

Contact me off-list if you have trouble with this local solution.

> Is this something I should be reporting here, or to Debian?

The above is a "local" solution - not approved by Debian.
I am not guessing here if their solution will be the same or not.

Mike
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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From: Jean-Pierre HOFER <jph@stephenson.dhis.org>
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Subject: [parisc-linux] Debian Etch RC1 on B180L / X display problem
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I have installed Etch RC1 on a B180L workstation.

The X display shows only a grey surface with some horizontal white dotted
lines. The mouse pointer is a series of horizontal white lines. There is
no colour at all.
Possibly, the video signal frequencies are not correct, but I don't have
seen during the installation an other mask related to the video display
than for the setting of the number of horizontal and vertical pixels of
the display (1280 x 1024).

What can be wrong ?

How to restart the installation program, without doing again a complete
installation ? (the X display is unusable, and I don't know how to exit
it and go directly into single user mode on console).

How to boot the system without starting X ? (single user mode).

Thanks in advance for advices.

Jean-Pierre
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] Debian Etch RC1 on B180L / X display problem
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On Thu, Nov 23, 2006 at 12:59:35AM +0100, Jean-Pierre HOFER wrote:
> I have installed Etch RC1 on a B180L workstation.
> 
> The X display shows only a grey surface with some horizontal white dotted
> lines. The mouse pointer is a series of horizontal white lines. There is
> no colour at all.
> Possibly, the video signal frequencies are not correct, but I don't have
> seen during the installation an other mask related to the video display
> than for the setting of the number of horizontal and vertical pixels of
> the display (1280 x 1024).
> 
> What can be wrong ?

Refresh rate is the other possibility.
Normal Refreash rate is somewhere between 60 and 85 Hz.
Try a slower speed if the current one doesn't work.

> How to restart the installation program, without doing again a complete
> installation ? (the X display is unusable, and I don't know how to exit
> it and go directly into single user mode on console).

You don't have to restart installation.
You just want to run "dpkg-reconfigure xserver-xorg"
once you get to a commandline OR edit /etc/X11/xorg.conf
and then restart X11 (e.g. ctl-alt-backspace) server.

> How to boot the system without starting X ? (single user mode).

o Interrupt the power up seqence to get a firmware prompt.
o "bo"
o Chose "Y" when ask "Interact with IPL?". This will start palo.
  Palo will first present a list of parameters.

o _append_ " init=/bin/bash" to any one of the parameters presented by palo.
  (Note the extra white space). Palo should list "init=/bin/bash" as
  a seperate parameter after hitting <Enter>.
o enter "b" in palo prompt to boot the system
o Once you get a bash prompt, run "mount -o remount,rw /"
  (get RW on the root filesystem).
o Disable /etc/init.d/gdm (or xdm) script by adding "exit 0" at the top.
o "exec /sbin/init 2" to get to normal login prompt.

You can then experiment on the /etc/X11/xorg.conf.
Use "xstart" or "xinit" commands to start X11 manually.

enjoy!
grant
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Subject: Re: [parisc-linux] Debian Etch RC1 on B180L / X display problem
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On 11/23/06, Grant Grundler <grundler@parisc-linux.org> wrote:
> On Thu, Nov 23, 2006 at 12:59:35AM +0100, Jean-Pierre HOFER wrote:
> > How to boot the system without starting X ? (single user mode).
>
> o Interrupt the power up seqence to get a firmware prompt.
> o "bo"
> o Chose "Y" when ask "Interact with IPL?". This will start palo.
>  Palo will first present a list of parameters.

[snip]

You can boot the box in single user mode by appending "-s" to the palo
commandline. During the boot sequence you will be prompted for root
password, type it and then you'll end up with a mostly functionnal
box, though most services (including X) will be disabled. Edit
xorg.conf and then reboot your machine.

It's probably a bit easier and less prone to errors than the leet
method suggested by Grant, which boots the machine in a state even
more basic than plain single user mode :)

HTH

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [parisc-linux] Debian Etch RC1 on B180L / X display problem
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On Thu, Nov 23, 2006 at 12:59:35AM +0100, Jean-Pierre HOFER wrote:
> The X display shows only a grey surface with some horizontal white dotted
> lines. The mouse pointer is a series of horizontal white lines. There is
> no colour at all.

X (and Linux fbdev in general) is incapable of configuring HP graphics cards,
only driving them through the documented STI commands.

You likely want to change the Monitor type to something else in "CO MO" at
the PDC prompt.

--Kyle
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On 23/11/06, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Thu, Nov 23, 2006 at 12:59:35AM +0100, Jean-Pierre HOFER wrote:
> > The X display shows only a grey surface with some horizontal white dotted
> > lines. The mouse pointer is a series of horizontal white lines. There is
> > no colour at all.
>
> X (and Linux fbdev in general) is incapable of configuring HP graphics cards,
> only driving them through the documented STI commands.
>
> You likely want to change the Monitor type to something else in "CO MO" at
> the PDC prompt.

I changed my screen resolution//refresh rate in X by using fbset
(before you start X), and having a matching modeline entry in
XF86Config/xorg.conf (see fbset -x).
Works for me, but for some strange reason not for every case (ie. not
all resolutions/refresh rates supported by fbset)

Slan,
   Max
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hppa-linux-gnu-gas only allows one type of ".equ" pseudo-op syntax:
symbol:		.equ value

The following patch allows hppa-gas to understand
			.equ symbol,value
as well, which seems to be pretty standard for other gas-targets as well.

I didn't found any problems yet with this patch, and it allows even the 
src/binutils/testsuite/binutils-all/localize-hidden-1.s
gas test  to compile.

Comments ?
If OK, would somebody with write-access to binutils submit it upstream ?

Helge

Index: gas/config/tc-hppa.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-hppa.c,v
retrieving revision 1.133
diff -u -r1.133 tc-hppa.c
--- gas/config/tc-hppa.c	30 Oct 2006 01:09:18 -0000	1.133
+++ gas/config/tc-hppa.c	23 Nov 2006 21:32:49 -0000
@@ -3262,7 +3262,7 @@
       return;
     }
 
-  /* Look up the opcode in the has table.  */
+  /* Look up the opcode in the hash table.  */
   if ((insn = (struct pa_opcode *) hash_find (op_hash, str)) == NULL)
     {
       as_bad ("Unknown opcode: `%s'", str);
@@ -6397,8 +6397,11 @@
     {
       if (reg)
 	as_bad (_(".REG must use a label"));
-      else
-	as_bad (_(".EQU must use a label"));
+      else {
+	/* Try gas' standard ".equ X,Y" pseudo opcode.  */
+      	s_set(0);
+	return;
+      }
     }
 
   pa_undefine_label ();


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> > [...]
> > You can then experiment on the /etc/X11/xorg.conf.
> > Use "xstart" or "xinit" commands to start X11 manually.
> 
> I have tried many different configurations with 'dpkg-reconfigure
> xserver-xorg' without success : after 'xinit', the display shows still a
> grey surface that is subdivided in 5 identical rows. In each row, there
> is a dash that should be the mouse pointer (at least, the mouse is alive).

Sorry, there are not 5 ROWs, but 5 identical COLUMNs.

Thanks in advance for all hints.

Jean-Pierre
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On Fri, Nov 24, 2006 at 01:19:11PM +0100, Jean-Pierre HOFER wrote:

> Sorry, there are not 5 ROWs, but 5 identical COLUMNs.
> 
> Thanks in advance for all hints.

What happens if you put:

    Option "ShadowFB" "false"

in the Device section of xorg.conf?
-- 
Stuart Brady
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Subject: Re: [parisc-linux] [PATCH] Remove spinlock_t from cpu_data (and thus
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On Sat, Nov 25, 2006 at 11:53:44AM -0500, Kyle McMartin wrote:
> This should enable us to clean up our header files nicely.
...

Yes, but...

> +spinlock_t fencepost[NR_CPUS] = {
> +	[0 ... NR_CPUS-1] = SPIN_LOCK_UNLOCKED
> +};

Unless each CPU gets it's own cacheline, I believe this is
going to ping-pong across CPU caches like hell. Thus
the "per-CPU" initialization. If the fencepost[] locks
are seldom used, then it doesn't matter and we could just use
one cacheline.

but I think you are on the right track to unraveling our
header dependencies a bit more...

thanks,
grant
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Subject: Re: [parisc-linux] Debian Etch RC1 on B180L / X display problem
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> > Sorry, there are not 5 ROWs, but 5 identical COLUMNs.
> > 
> > Thanks in advance for all hints.
> 
> What happens if you put:
> 
>     Option "ShadowFB" "false"
> 
> in the Device section of xorg.conf?
> -- 
> Stuart Brady

Yes, it did the trick !  Many thanks for your hint.

This is a trap. It would be very useful to have a possibility to set/unset
this option in 'dpkg-reconfigure xserver-xorg'. For instance include this
choice in a menu after the mask about "Desired default color depth in bits",
together with some comments about needed setings for the supported HP graphic
cards.

Jean-Pierre
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Subject: [parisc-linux] [PATCH] Generic compat_sys_sysinfo
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Xref: news.gmane.org gmane.linux.ports.parisc:24109

While tracking a bug for Thibaut Varene, I noticed that almost all
architectures implemented exactly the same sys32_sysinfo... except
parisc, where a bug was to be found in handling of the uptime. So
let's remove a whole whack of code for fun and profit. Cribbed
compat_sys_sysinfo from x86_64's implementation, since I figured
it would be the best tested.

Tested compat_sys_sysinfo() on parisc and the results look sane.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
Some architectures were missing the u16 pad, however, I'm going to
guess that a u16 is aligned on a u32 boundary and thus the padding is
implied there...

 arch/ia64/ia32/ia32_entry.S        |    2 -
 arch/ia64/ia32/sys_ia32.c          |   68 -------------------------------------
 arch/mips/kernel/linux32.c         |   44 -----------------------
 arch/mips/kernel/scall64-n32.S     |    2 -
 arch/mips/kernel/scall64-o32.S     |    2 -
 arch/parisc/kernel/sys_parisc32.c  |   64 ----------------------------------
 arch/parisc/kernel/syscall_table.S |    2 -
 arch/powerpc/kernel/sys_ppc32.c    |   67 ------------------------------------
 arch/s390/kernel/compat_linux.c    |   45 ------------------------
 arch/s390/kernel/compat_wrapper.S  |    6 +--
 arch/s390/kernel/syscalls.S        |    2 -
 arch/sparc64/kernel/sys_sparc32.c  |   64 ----------------------------------
 arch/sparc64/kernel/systbls.S      |    2 -
 arch/x86_64/ia32/ia32entry.S       |    2 -
 arch/x86_64/ia32/sys_ia32.c        |   66 -----------------------------------
 kernel/compat.c                    |   68 +++++++++++++++++++++++++++++++++++++
 16 files changed, 78 insertions(+), 428 deletions(-)

diff --git a/arch/ia64/ia32/ia32_entry.S b/arch/ia64/ia32/ia32_entry.S
index 8d41c2c..d214c36 100644
--- a/arch/ia64/ia32/ia32_entry.S
+++ b/arch/ia64/ia32/ia32_entry.S
@@ -326,7 +326,7 @@ ia32_syscall_table:
 	data8 sys_ni_syscall
 	data8 compat_sys_wait4
 	data8 sys_swapoff	  /* 115 */
-	data8 sys32_sysinfo
+	data8 compat_sys_sysinfo 
 	data8 sys32_ipc
 	data8 sys_fsync
 	data8 sys32_sigreturn
diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c
index 9d6a3f2..85ac5b3 100644
--- a/arch/ia64/ia32/sys_ia32.c
+++ b/arch/ia64/ia32/sys_ia32.c
@@ -2209,74 +2209,6 @@ sys32_fstat64 (unsigned int fd, struct s
 	return ret;
 }
 
-struct sysinfo32 {
-	s32 uptime;
-	u32 loads[3];
-	u32 totalram;
-	u32 freeram;
-	u32 sharedram;
-	u32 bufferram;
-	u32 totalswap;
-	u32 freeswap;
-	u16 procs;
-	u16 pad;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[8];
-};
-
-asmlinkage long
-sys32_sysinfo (struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	long ret, err;
-	int bitcount = 0;
-	mm_segment_t old_fs = get_fs();
-
-	set_fs(KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *) &s);
-	set_fs(old_fs);
-	/* Check to see if any memory value is too large for 32-bit and
-	 * scale down if needed.
-	 */
-	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-		while (s.mem_unit < PAGE_SIZE) {
-			s.mem_unit <<= 1;
-			bitcount++;
-		}
-		s.totalram >>= bitcount;
-		s.freeram >>= bitcount;
-		s.sharedram >>= bitcount;
-		s.bufferram >>= bitcount;
-		s.totalswap >>= bitcount;
-		s.freeswap >>= bitcount;
-		s.totalhigh >>= bitcount;
-		s.freehigh >>= bitcount;
-	}
-
-	if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
-		return -EFAULT;
-
-	err  = __put_user(s.uptime, &info->uptime);
-	err |= __put_user(s.loads[0], &info->loads[0]);
-	err |= __put_user(s.loads[1], &info->loads[1]);
-	err |= __put_user(s.loads[2], &info->loads[2]);
-	err |= __put_user(s.totalram, &info->totalram);
-	err |= __put_user(s.freeram, &info->freeram);
-	err |= __put_user(s.sharedram, &info->sharedram);
-	err |= __put_user(s.bufferram, &info->bufferram);
-	err |= __put_user(s.totalswap, &info->totalswap);
-	err |= __put_user(s.freeswap, &info->freeswap);
-	err |= __put_user(s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	return ret;
-}
-
 asmlinkage long
 sys32_sched_rr_get_interval (pid_t pid, struct compat_timespec __user *interval)
 {
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 7a3ebbe..e3677b9 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -193,50 +193,6 @@ sysn32_waitid(int which, compat_pid_t pi
 	return ret;
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        u16 procs;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[8];
-};
-
-asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret, err;
-	mm_segment_t old_fs = get_fs ();
-
-	set_fs (KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *)&s);
-	set_fs (old_fs);
-	err = put_user (s.uptime, &info->uptime);
-	err |= __put_user (s.loads[0], &info->loads[0]);
-	err |= __put_user (s.loads[1], &info->loads[1]);
-	err |= __put_user (s.loads[2], &info->loads[2]);
-	err |= __put_user (s.totalram, &info->totalram);
-	err |= __put_user (s.freeram, &info->freeram);
-	err |= __put_user (s.sharedram, &info->sharedram);
-	err |= __put_user (s.bufferram, &info->bufferram);
-	err |= __put_user (s.totalswap, &info->totalswap);
-	err |= __put_user (s.freeswap, &info->freeswap);
-	err |= __put_user (s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	return ret;
-}
-
 #define RLIM_INFINITY32	0x7fffffff
 #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
 
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 6bb9f91..9bc5519 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -217,7 +217,7 @@ EXPORT(sysn32_call_table)
 	PTR	sys32_gettimeofday
 	PTR	compat_sys_getrlimit		/* 6095 */
 	PTR	compat_sys_getrusage
-	PTR	sys32_sysinfo
+	PTR	compat_sys_sysinfo
 	PTR	compat_sys_times
 	PTR	sys32_ptrace
 	PTR	sys_getuid			/* 6100 */
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 28aa4fc..79b7196 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -321,7 +321,7 @@ sys_call_table:
 	PTR	sys_ni_syscall			/* sys_vm86 */
 	PTR	compat_sys_wait4
 	PTR	sys_swapoff			/* 4115 */
-	PTR	sys32_sysinfo
+	PTR	compat_sys_sysinfo
 	PTR	sys32_ipc
 	PTR	sys_fsync
 	PTR	sys32_sigreturn
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 29be437..ce3245f 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -579,70 +579,6 @@ asmlinkage int sys32_sendfile64(int out_
 }
 
 
-struct sysinfo32 {
-	s32 uptime;
-	u32 loads[3];
-	u32 totalram;
-	u32 freeram;
-	u32 sharedram;
-	u32 bufferram;
-	u32 totalswap;
-	u32 freeswap;
-	unsigned short procs;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[12];
-};
-
-/* We used to call sys_sysinfo and translate the result.  But sys_sysinfo
- * undoes the good work done elsewhere, and rather than undoing the
- * damage, I decided to just duplicate the code from sys_sysinfo here.
- */
-
-asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo val;
-	int err;
-	unsigned long seq;
-
-	/* We don't need a memset here because we copy the
-	 * struct to userspace once element at a time.
-	 */
-
-	do {
-		seq = read_seqbegin(&xtime_lock);
-		val.uptime = jiffies / HZ;
-
-		val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
-		val.loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
-		val.loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT);
-
-		val.procs = nr_threads;
-	} while (read_seqretry(&xtime_lock, seq));
-
-
-	si_meminfo(&val);
-	si_swapinfo(&val);
-	
-	err = put_user (val.uptime, &info->uptime);
-	err |= __put_user (val.loads[0], &info->loads[0]);
-	err |= __put_user (val.loads[1], &info->loads[1]);
-	err |= __put_user (val.loads[2], &info->loads[2]);
-	err |= __put_user (val.totalram, &info->totalram);
-	err |= __put_user (val.freeram, &info->freeram);
-	err |= __put_user (val.sharedram, &info->sharedram);
-	err |= __put_user (val.bufferram, &info->bufferram);
-	err |= __put_user (val.totalswap, &info->totalswap);
-	err |= __put_user (val.freeswap, &info->freeswap);
-	err |= __put_user (val.procs, &info->procs);
-	err |= __put_user (val.totalhigh, &info->totalhigh);
-	err |= __put_user (val.freehigh, &info->freehigh);
-	err |= __put_user (val.mem_unit, &info->mem_unit);
-	return err ? -EFAULT : 0;
-}
-
-
 /* lseek() needs a wrapper because 'offset' can be negative, but the top
  * half of the argument has been zeroed by syscall.S.
  */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index c91605b..d4523c9 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -197,7 +197,7 @@ #endif
 	/* struct rusage contains longs... */
 	ENTRY_COMP(wait4)
 	ENTRY_SAME(swapoff)		/* 115 */
-	ENTRY_DIFF(sysinfo)
+	ENTRY_COMP(sysinfo)
 	ENTRY_SAME(shutdown)
 	ENTRY_SAME(fsync)
 	ENTRY_SAME(madvise)
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index d15c33e..aa6149f 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -197,73 +197,6 @@ static inline long put_tv32(struct compa
 		 __put_user(i->tv_usec, &o->tv_usec)));
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-	unsigned short pad;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[20-2*sizeof(int)-sizeof(int)];
-};
-
-asmlinkage long compat_sys_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret, err;
-	int bitcount=0;
-	mm_segment_t old_fs = get_fs ();
-	
-	/* The __user cast is valid due to set_fs() */
-	set_fs (KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *)&s);
-	set_fs (old_fs);
-
-	/* Check to see if any memory value is too large for 32-bit and
-         * scale down if needed.
-         */
-	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-	    while (s.mem_unit < PAGE_SIZE) {
-		s.mem_unit <<= 1;
-		bitcount++;
-	    }
-	    s.totalram >>=bitcount;
-	    s.freeram >>= bitcount;
-	    s.sharedram >>= bitcount;
-	    s.bufferram >>= bitcount;
-	    s.totalswap >>= bitcount;
-	    s.freeswap >>= bitcount;
-	    s.totalhigh >>= bitcount;
-	    s.freehigh >>= bitcount;
-	}
-
-	err = put_user (s.uptime, &info->uptime);
-	err |= __put_user (s.loads[0], &info->loads[0]);
-	err |= __put_user (s.loads[1], &info->loads[1]);
-	err |= __put_user (s.loads[2], &info->loads[2]);
-	err |= __put_user (s.totalram, &info->totalram);
-	err |= __put_user (s.freeram, &info->freeram);
-	err |= __put_user (s.sharedram, &info->sharedram);
-	err |= __put_user (s.bufferram, &info->bufferram);
-	err |= __put_user (s.totalswap, &info->totalswap);
-	err |= __put_user (s.freeswap, &info->freeswap);
-	err |= __put_user (s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	
-	return ret;
-}
-
 
 
 
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 295d2bb..91e07ea 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -392,51 +392,6 @@ int cp_compat_stat(struct kstat *stat, s
 	return err;
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-	unsigned short pads;
-	u32 totalhigh;
-	u32 freehigh;
-	unsigned int mem_unit;
-        char _f[8];
-};
-
-asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret, err;
-	mm_segment_t old_fs = get_fs ();
-	
-	set_fs (KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *) &s);
-	set_fs (old_fs);
-	err = put_user (s.uptime, &info->uptime);
-	err |= __put_user (s.loads[0], &info->loads[0]);
-	err |= __put_user (s.loads[1], &info->loads[1]);
-	err |= __put_user (s.loads[2], &info->loads[2]);
-	err |= __put_user (s.totalram, &info->totalram);
-	err |= __put_user (s.freeram, &info->freeram);
-	err |= __put_user (s.sharedram, &info->sharedram);
-	err |= __put_user (s.bufferram, &info->bufferram);
-	err |= __put_user (s.totalswap, &info->totalswap);
-	err |= __put_user (s.freeswap, &info->freeswap);
-	err |= __put_user (s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	return ret;
-}
-
 asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
 				struct compat_timespec __user *interval)
 {
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 71c1127..7e61fbe 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -517,10 +517,10 @@ sys32_swapoff_wrapper:
 	llgtr	%r2,%r2			# const char *
 	jg	sys_swapoff		# branch to system call
 
-	.globl	sys32_sysinfo_wrapper
-sys32_sysinfo_wrapper:
+	.globl	compat_sys_sysinfo_wrapper
+compat_sys_sysinfo_wrapper:
 	llgtr	%r2,%r2			# struct sysinfo_emu31 *
-	jg	sys32_sysinfo		# branch to system call
+	jg	compat_sys_sysinfo	# branch to system call
 
 	.globl	sys32_ipc_wrapper
 sys32_ipc_wrapper:
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index a4ceae3..a52c444 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -124,7 +124,7 @@ NI_SYSCALL							/* old "idle" system ca
 NI_SYSCALL							/* vm86old for i386 */
 SYSCALL(sys_wait4,sys_wait4,compat_sys_wait4_wrapper)
 SYSCALL(sys_swapoff,sys_swapoff,sys32_swapoff_wrapper)		/* 115 */
-SYSCALL(sys_sysinfo,sys_sysinfo,sys32_sysinfo_wrapper)
+SYSCALL(sys_sysinfo,sys_sysinfo,compat_sys_sysinfo_wrapper)
 SYSCALL(sys_ipc,sys_ipc,sys32_ipc_wrapper)
 SYSCALL(sys_fsync,sys_fsync,sys32_fsync_wrapper)
 SYSCALL(sys_sigreturn_glue,sys_sigreturn_glue,sys32_sigreturn_glue)
diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c
index 16ff6ff..77811e9 100644
--- a/arch/sparc64/kernel/sys_sparc32.c
+++ b/arch/sparc64/kernel/sys_sparc32.c
@@ -459,70 +459,6 @@ asmlinkage long compat_sys_sysfs(int opt
 	return sys_sysfs(option, arg1, arg2);
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-	unsigned short pad;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[20-2*sizeof(int)-sizeof(int)];
-};
-
-asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret, err;
-	int bitcount = 0;
-	mm_segment_t old_fs = get_fs ();
-	
-	set_fs(KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *) &s);
-	set_fs(old_fs);
-	/* Check to see if any memory value is too large for 32-bit and
-         * scale down if needed.
-         */
-	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-		while (s.mem_unit < PAGE_SIZE) {
-			s.mem_unit <<= 1;
-			bitcount++;
-		}
-		s.totalram >>= bitcount;
-		s.freeram >>= bitcount;
-		s.sharedram >>= bitcount;
-		s.bufferram >>= bitcount;
-		s.totalswap >>= bitcount;
-		s.freeswap >>= bitcount;
-		s.totalhigh >>= bitcount;
-		s.freehigh >>= bitcount;
-	}
-
-	err = put_user (s.uptime, &info->uptime);
-	err |= __put_user (s.loads[0], &info->loads[0]);
-	err |= __put_user (s.loads[1], &info->loads[1]);
-	err |= __put_user (s.loads[2], &info->loads[2]);
-	err |= __put_user (s.totalram, &info->totalram);
-	err |= __put_user (s.freeram, &info->freeram);
-	err |= __put_user (s.sharedram, &info->sharedram);
-	err |= __put_user (s.bufferram, &info->bufferram);
-	err |= __put_user (s.totalswap, &info->totalswap);
-	err |= __put_user (s.freeswap, &info->freeswap);
-	err |= __put_user (s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	return ret;
-}
-
 asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
 {
 	struct timespec t;
diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S
index 9a80267..948b7d2 100644
--- a/arch/sparc64/kernel/systbls.S
+++ b/arch/sparc64/kernel/systbls.S
@@ -61,7 +61,7 @@ sys_call_table32:
 	.word sys32_epoll_wait, sys32_ioprio_set, sys_getppid, sys32_sigaction, sys_sgetmask
 /*200*/	.word sys32_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir
 	.word sys32_readahead, sys32_socketcall, sys32_syslog, sys32_lookup_dcookie, sys32_fadvise64
-/*210*/	.word sys32_fadvise64_64, sys32_tgkill, sys32_waitpid, sys_swapoff, sys32_sysinfo
+/*210*/	.word sys32_fadvise64_64, sys32_tgkill, sys32_waitpid, sys_swapoff, compat_sys_sysinfo
 	.word sys32_ipc, sys32_sigreturn, sys_clone, sys32_ioprio_get, compat_sys_adjtimex
 /*220*/	.word sys32_sigprocmask, sys_ni_syscall, sys32_delete_module, sys_ni_syscall, sys32_getpgid
 	.word sys32_bdflush, sys32_sysfs, sys_nis_syscall, sys32_setfsuid16, sys32_setfsgid16
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index 9fa991a..89519d2 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -515,7 +515,7 @@ #endif
 	.quad sys32_vm86_warning	/* vm86old */ 
 	.quad compat_sys_wait4
 	.quad sys_swapoff		/* 115 */
-	.quad sys32_sysinfo
+	.quad compat_sys_sysinfo
 	.quad sys32_ipc
 	.quad sys_fsync
 	.quad stub32_sigreturn
diff --git a/arch/x86_64/ia32/sys_ia32.c b/arch/x86_64/ia32/sys_ia32.c
index db10734..061a052 100644
--- a/arch/x86_64/ia32/sys_ia32.c
+++ b/arch/x86_64/ia32/sys_ia32.c
@@ -523,72 +523,6 @@ sys32_sysfs(int option, u32 arg1, u32 ar
 	return sys_sysfs(option, arg1, arg2);
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-	unsigned short pad; 
-        u32 totalhigh;
-        u32 freehigh;
-        u32 mem_unit;
-        char _f[20-2*sizeof(u32)-sizeof(int)];
-};
-
-asmlinkage long
-sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret;
-	mm_segment_t old_fs = get_fs ();
-	int bitcount = 0;
-	
-	set_fs (KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *)&s);
-	set_fs (old_fs);
-
-        /* Check to see if any memory value is too large for 32-bit and scale
-	 *  down if needed
-	 */
-	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-		while (s.mem_unit < PAGE_SIZE) {
-			s.mem_unit <<= 1;
-			bitcount++;
-		}
-		s.totalram >>= bitcount;
-		s.freeram >>= bitcount;
-		s.sharedram >>= bitcount;
-		s.bufferram >>= bitcount;
-		s.totalswap >>= bitcount;
-		s.freeswap >>= bitcount;
-		s.totalhigh >>= bitcount;
-		s.freehigh >>= bitcount;
-	}
-
-	if (!access_ok(VERIFY_WRITE, info, sizeof(struct sysinfo32)) ||
-	    __put_user (s.uptime, &info->uptime) ||
-	    __put_user (s.loads[0], &info->loads[0]) ||
-	    __put_user (s.loads[1], &info->loads[1]) ||
-	    __put_user (s.loads[2], &info->loads[2]) ||
-	    __put_user (s.totalram, &info->totalram) ||
-	    __put_user (s.freeram, &info->freeram) ||
-	    __put_user (s.sharedram, &info->sharedram) ||
-	    __put_user (s.bufferram, &info->bufferram) ||
-	    __put_user (s.totalswap, &info->totalswap) ||
-	    __put_user (s.freeswap, &info->freeswap) ||
-	    __put_user (s.procs, &info->procs) ||
-	    __put_user (s.totalhigh, &info->totalhigh) || 
-	    __put_user (s.freehigh, &info->freehigh) ||
-	    __put_user (s.mem_unit, &info->mem_unit))
-		return -EFAULT;
-	return 0;
-}
-                
 asmlinkage long
 sys32_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
 {
diff --git a/kernel/compat.c b/kernel/compat.c
index bce5ad4..fda0e30 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -1034,3 +1034,71 @@ asmlinkage long compat_sys_migrate_pages
 	return sys_migrate_pages(pid, nr_bits + 1, old, new);
 }
 #endif
+
+struct compat_sysinfo {
+	s32 uptime;
+	u32 loads[3];
+	u32 totalram;
+	u32 freeram;
+	u32 sharedram;
+	u32 bufferram;
+	u32 totalswap;
+	u32 freeswap;
+	u16 procs;
+	u16 pad;
+	u32 totalhigh;
+	u32 freehigh;
+	u32 mem_unit;
+	char _f[20-2*sizeof(u32)-sizeof(int)];
+};
+
+asmlinkage long
+compat_sys_sysinfo(struct compat_sysinfo __user *info)
+{
+	struct sysinfo s;
+	int ret;
+	mm_segment_t old_fs = get_fs ();
+	int bitcount = 0;
+
+	set_fs (KERNEL_DS);
+	ret = sys_sysinfo((struct sysinfo __user *)&s);
+	set_fs (old_fs);
+
+	/* Check to see if any memory value is too large for 32-bit and scale
+	 *  down if needed
+	 */
+	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
+		while (s.mem_unit < PAGE_SIZE) {
+			s.mem_unit <<= 1;
+			bitcount++;
+		}
+		s.totalram >>= bitcount;
+		s.freeram >>= bitcount;
+		s.sharedram >>= bitcount;
+		s.bufferram >>= bitcount;
+		s.totalswap >>= bitcount;
+		s.freeswap >>= bitcount;
+		s.totalhigh >>= bitcount;
+		s.freehigh >>= bitcount;
+	}
+
+	if (!access_ok(VERIFY_WRITE, info, sizeof(struct compat_sysinfo)) ||
+	    __put_user (s.uptime, &info->uptime) ||
+	    __put_user (s.loads[0], &info->loads[0]) ||
+	    __put_user (s.loads[1], &info->loads[1]) ||
+	    __put_user (s.loads[2], &info->loads[2]) ||
+	    __put_user (s.totalram, &info->totalram) ||
+	    __put_user (s.freeram, &info->freeram) ||
+	    __put_user (s.sharedram, &info->sharedram) ||
+	    __put_user (s.bufferram, &info->bufferram) ||
+	    __put_user (s.totalswap, &info->totalswap) ||
+	    __put_user (s.freeswap, &info->freeswap) ||
+	    __put_user (s.procs, &info->procs) ||
+	    __put_user (s.totalhigh, &info->totalhigh) ||
+	    __put_user (s.freehigh, &info->freehigh) ||
+	    __put_user (s.mem_unit, &info->mem_unit))
+		return -EFAULT;
+
+	return 0;
+}
+
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Date: Fri, 24 Nov 2006 21:00:48 -0700
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On Fri, Nov 24, 2006 at 08:43:13PM -0500, Kyle McMartin wrote:
> Some architectures were missing the u16 pad, however, I'm going to
> guess that a u16 is aligned on a u32 boundary and thus the padding is
> implied there...

It's more that a u32 gets aligned to a u32 boundary rather than a u16.
This is true except for m68k, which doesn't have compat.

Acked-by: Matthew Wilcox <matthew@wil.cx>
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Xref: news.gmane.org gmane.linux.ports.parisc:24111

This should enable us to clean up our header files nicely.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index fb81e56..0af1fad 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -153,8 +153,6 @@ #endif
 	p->cpuid = cpuid;	/* save CPU id */
 	p->txn_addr = txn_addr;	/* save CPU IRQ address */
 #ifdef CONFIG_SMP
-	spin_lock_init(&p->lock);
-
 	/*
 	** FIXME: review if any other initialization is clobbered
 	**	for boot_cpu by the above memset().
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 4a23a97..5301600 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -76,6 +76,9 @@ cpumask_t cpu_possible_map __read_mostly
 EXPORT_SYMBOL(cpu_online_map);
 EXPORT_SYMBOL(cpu_possible_map);
 
+spinlock_t fencepost[NR_CPUS] = {
+	[0 ... NR_CPUS-1] = SPIN_LOCK_UNLOCKED
+};
 
 struct smp_call_struct {
 	void (*func) (void *info);
@@ -167,10 +170,11 @@ ipi_interrupt(int irq, void *dev_id) 
 	mb();	/* Order interrupt and bit testing. */
 
 	for (;;) {
-		spin_lock_irqsave(&(p->lock),flags);
+		spinlock_t *lock = &fencepost[this_cpu];
+		spin_lock_irqsave(lock, flags);
 		ops = p->pending_ipi;
 		p->pending_ipi = 0;
-		spin_unlock_irqrestore(&(p->lock),flags);
+		spin_unlock_irqrestore(lock, flags);
 
 		mb(); /* Order bit clearing and data access. */
 
@@ -275,12 +279,13 @@ static inline void
 ipi_send(int cpu, enum ipi_message_type op)
 {
 	struct cpuinfo_parisc *p = &cpu_data[cpu];
+	spinlock_t *lock = &fencepost[cpu];
 	unsigned long flags;
 
-	spin_lock_irqsave(&(p->lock),flags);
+	spin_lock_irqsave(lock, flags);
 	p->pending_ipi |= 1 << op;
 	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, cpu_data[cpu].hpa);
-	spin_unlock_irqrestore(&(p->lock),flags);
+	spin_unlock_irqrestore(lock, flags);
 }
 
 
diff --git a/include/asm-parisc/processor.h b/include/asm-parisc/processor.h
index fd7866d..435afe5 100644
--- a/include/asm-parisc/processor.h
+++ b/include/asm-parisc/processor.h
@@ -87,7 +87,6 @@ struct cpuinfo_parisc {
 	unsigned long hpa;          /* Host Physical address */
 	unsigned long txn_addr;     /* MMIO addr of EIR or id_eid */
 #ifdef CONFIG_SMP
-	spinlock_t lock;            /* synchronization for ipi's */
 	unsigned long pending_ipi;  /* bitmap of type ipi_message_type */
 	unsigned long ipi_count;    /* number ipi Interrupts */
 #endif
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I just noticed, that we don't have any recent prebuilt kernels at the kernel download page any longer:
http://cvs.parisc-linux.org/download/linux-2.6/

It's still at 2.6.18-rc1-pa5 from July.

Helge
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> The GAS manual says:
> ---
> .equ symbol, expression
> This directive sets the value of symbol to expression. It is
> synonymous with `.set'; see section .set symbol, expression.
> The syntax for equ on the HPPA is `symbol .equ expression'.
> ---
> 
> This should be updated.
> 
> Have you considered the implications of your patch to porting HPUX assembly?
> Does the HPUX assembler have an .equ directive? Dave can probably
> answer that so I'll CC him.
> 
> ---
> label .reg expr
>     Synonym for .equ; define label with the absolute expression expr
> as its value.
> ---
> 
> In summary... if you provide a documentation patch I'll test this and
> submit upstream. When upstreams gives the green flag I'll check this
> into binutils head.

This needs testing on hpux.  I believe there may be problems.
The current implementation reflects the syntax for .equ using HP as.

The HP assembler only allows an integer expression which evalutes
to an absolute value.  The HP assembler prohibits the use of
relocatable labels and imported symbols as a component of a
.equ expression.  This reflected the capabilites of HP ld at
one time.  This may not reflect current capabilites.  There may
be differences between the 32 and 64-bit linkers.  I'm cautious
here as I know .set which has no HP assembler equivalent works
most of the time, but the capabilities of HP ld aren't well
documented and there are subtle issues in assigning aliases.
There are some uses of .set in the gas testsuite which run under
hpux and they seem to work at basic level.  However, the weak
alias stuff isn't useful under hpux because of the way HP ld
handles "weak" symbols.

On the otherhand, more latitude on the expression is allowed when
GNU ld is being used.  .equ is effectively a synonym for .set.  
Because of this, I haven't been too concerned about the syntax
for .equ.  There are various other directives that also follow the
HP syntax.  In summary, these probably should be changed to follow
the standard behavior under linux, etc; but I think the current
behavior should be retained under hpux.

Sorry, I haven't had a chance to look at the details of your change.
I've been busy and a few GCC targets are broken...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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On Sun, Nov 26, 2006 at 12:33:06AM -0700, Grant Grundler wrote:
> 

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 4a23a97..5b6bc6e 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -76,6 +76,7 @@ cpumask_t cpu_possible_map __read_mostly
 EXPORT_SYMBOL(cpu_online_map);
 EXPORT_SYMBOL(cpu_possible_map);
 
+DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
 
 struct smp_call_struct {
 	void (*func) (void *info);
@@ -167,10 +168,11 @@ ipi_interrupt(int irq, void *dev_id) 
 	mb();	/* Order interrupt and bit testing. */
 
 	for (;;) {
-		spin_lock_irqsave(&(p->lock),flags);
+		spinlock_t *lock = &per_cpu(ipi_lock, this_cpu);
+		spin_lock_irqsave(lock, flags);
 		ops = p->pending_ipi;
 		p->pending_ipi = 0;
-		spin_unlock_irqrestore(&(p->lock),flags);
+		spin_unlock_irqrestore(lock, flags);
 
 		mb(); /* Order bit clearing and data access. */
 
@@ -275,12 +277,13 @@ static inline void
 ipi_send(int cpu, enum ipi_message_type op)
 {
 	struct cpuinfo_parisc *p = &cpu_data[cpu];
+	spinlock_t *lock = &per_cpu(ipi_lock, cpu);
 	unsigned long flags;
 
-	spin_lock_irqsave(&(p->lock),flags);
+	spin_lock_irqsave(lock, flags);
 	p->pending_ipi |= 1 << op;
 	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, cpu_data[cpu].hpa);
-	spin_unlock_irqrestore(&(p->lock),flags);
+	spin_unlock_irqrestore(lock, flags);
 }
 
 
diff --git a/include/asm-parisc/processor.h b/include/asm-parisc/processor.h
index fd7866d..435afe5 100644
--- a/include/asm-parisc/processor.h
+++ b/include/asm-parisc/processor.h
@@ -87,7 +87,6 @@ struct cpuinfo_parisc {
 	unsigned long hpa;          /* Host Physical address */
 	unsigned long txn_addr;     /* MMIO addr of EIR or id_eid */
 #ifdef CONFIG_SMP
-	spinlock_t lock;            /* synchronization for ipi's */
 	unsigned long pending_ipi;  /* bitmap of type ipi_message_type */
 	unsigned long ipi_count;    /* number ipi Interrupts */
 #endif
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Subject: Re: [parisc-linux] [PATCH] Remove spinlock_t from cpu_data (and thus
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On Sat, Nov 25, 2006 at 11:53:44AM -0500, Kyle McMartin wrote:
> This should enable us to clean up our header files nicely.

Thanks for looking at this.

My first thought was "Surely there's a better way to do this, maybe
DEFINE_PER_CPU".

Then I looked at what you'd had to touch.  Essentially, we're
multiplexing 6 different ops onto one interrupt.  This would make sense
if we were short of interrupts, but on the vast majority of systems, we
aren't.

We define NOP, RESCHEDULE, CALL_FUNC, CPU_START, CPU_STOP and CPU_TEST.
CPU_TEST is never sent, down to 5.  CPU_NOP and CPU_RESCHEDULE are the
same other than debug statements, down to 4.  So by taking 3 additional
CPU interrupts, we can eliminate the spinlock entirely.

We could do away with RESCHEDULE if we pass a nop function to CALL_FUNC.
I don't know if we would suffer a performance hit from doing that
though.

We could also only enable CPU_STOP if CPU_HOTPLUG was set.  And
fold CPU_START/CPU_STOP into the CALL_FUNC bucket.  Or deregister
CPU_START after the CPU's come up.

In any case, I think this is a whole lot preferable to the spinlock that
we're currently using.  I have some other ideas (like using set_bit()
and xchg() which would take the atomic_hash_spinlock), but I think
redoing our IPI support in the way I've outlined above is cleaner.
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On Sun, Nov 26, 2006 at 01:37:42PM -0500, Kyle McMartin wrote:
> diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
> index 4a23a97..5b6bc6e 100644
> --- a/arch/parisc/kernel/smp.c
> +++ b/arch/parisc/kernel/smp.c
> @@ -76,6 +76,7 @@ cpumask_t cpu_possible_map __read_mostly
>  EXPORT_SYMBOL(cpu_online_map);
>  EXPORT_SYMBOL(cpu_possible_map);
>  
> +DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;

If this works - this is the right way to do it.
You rock!

thanks!
grant

>  
>  struct smp_call_struct {
>  	void (*func) (void *info);
> @@ -167,10 +168,11 @@ ipi_interrupt(int irq, void *dev_id) 
>  	mb();	/* Order interrupt and bit testing. */
>  
>  	for (;;) {
> -		spin_lock_irqsave(&(p->lock),flags);
> +		spinlock_t *lock = &per_cpu(ipi_lock, this_cpu);
> +		spin_lock_irqsave(lock, flags);
>  		ops = p->pending_ipi;
>  		p->pending_ipi = 0;
> -		spin_unlock_irqrestore(&(p->lock),flags);
> +		spin_unlock_irqrestore(lock, flags);
>  
>  		mb(); /* Order bit clearing and data access. */
>  
> @@ -275,12 +277,13 @@ static inline void
>  ipi_send(int cpu, enum ipi_message_type op)
>  {
>  	struct cpuinfo_parisc *p = &cpu_data[cpu];
> +	spinlock_t *lock = &per_cpu(ipi_lock, cpu);
>  	unsigned long flags;
>  
> -	spin_lock_irqsave(&(p->lock),flags);
> +	spin_lock_irqsave(lock, flags);
>  	p->pending_ipi |= 1 << op;
>  	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, cpu_data[cpu].hpa);
> -	spin_unlock_irqrestore(&(p->lock),flags);
> +	spin_unlock_irqrestore(lock, flags);
>  }
>  
>  
> diff --git a/include/asm-parisc/processor.h b/include/asm-parisc/processor.h
> index fd7866d..435afe5 100644
> --- a/include/asm-parisc/processor.h
> +++ b/include/asm-parisc/processor.h
> @@ -87,7 +87,6 @@ struct cpuinfo_parisc {
>  	unsigned long hpa;          /* Host Physical address */
>  	unsigned long txn_addr;     /* MMIO addr of EIR or id_eid */
>  #ifdef CONFIG_SMP
> -	spinlock_t lock;            /* synchronization for ipi's */
>  	unsigned long pending_ipi;  /* bitmap of type ipi_message_type */
>  	unsigned long ipi_count;    /* number ipi Interrupts */
>  #endif
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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On Sun, Nov 26, 2006 at 11:38:51AM +0100, Helge Deller wrote:
> I just noticed, that we don't have any recent prebuilt kernels at the kernel download page any longer:
> http://cvs.parisc-linux.org/download/linux-2.6/
> 
> It's still at 2.6.18-rc1-pa5 from July.
> 

It hasn't been updated for Git. Now that we pretty much build
straight out of Linus' tree barring some recent devel work, I don't
see too much value providing autobuilt images.

I spent a bit of time playing with the idea of a tinderbox to build
-git snapshots daily, but never bothered to see it through to completion.

Cheers,
	Kyle M.
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Hi Dave,
Hi Carlos,

Somehow I lost Carlos answer to my mail, so I'll wind his questions and my answers in here:

Carlos> Out of curiosity do you have a copyright assignment for binutils? 
Carlos> If not, then that is OK, I can submit your patch upstream
Carlos> and check it in aswell.

I'm right now in the process to get this assignment done.
Since I think this will take some time, I'd prefer if you could submit 
it upstream (if everyone agrees).


On Monday 27 November 2006 02:34, John David Anglin wrote:
> > The GAS manual says:
> > ---
> > .equ symbol, expression
> > This directive sets the value of symbol to expression. It is
> > synonymous with `.set'; see section .set symbol, expression.
> > The syntax for equ on the HPPA is `symbol .equ expression'.
> > ---
> > 
> > This should be updated.

Sure.
I'll send an updated patch soon.

> > Have you considered the implications of your patch to porting HPUX assembly?
> > Does the HPUX assembler have an .equ directive? Dave can probably
> > answer that so I'll CC him.
> > 
> > ---
> > label .reg expr
> >     Synonym for .equ; define label with the absolute expression expr
> > as its value.
> > ---
> > 
> This needs testing on hpux.  I believe there may be problems.
> The current implementation reflects the syntax for .equ using HP as.
> 
> The HP assembler only allows an integer expression which evalutes
> to an absolute value.  The HP assembler prohibits the use of
> relocatable labels and imported symbols as a component of a
> .equ expression.  This reflected the capabilites of HP ld at
> one time.  This may not reflect current capabilites.  There may
> be differences between the 32 and 64-bit linkers.  I'm cautious
> here as I know .set which has no HP assembler equivalent works
> most of the time, but the capabilities of HP ld aren't well
> documented and there are subtle issues in assigning aliases.
> There are some uses of .set in the gas testsuite which run under
> hpux and they seem to work at basic level.  However, the weak
> alias stuff isn't useful under hpux because of the way HP ld
> handles "weak" symbols.
> 
> On the otherhand, more latitude on the expression is allowed when
> GNU ld is being used.  .equ is effectively a synonym for .set.  
> Because of this, I haven't been too concerned about the syntax
> for .equ.  There are various other directives that also follow the
> HP syntax.  In summary, these probably should be changed to follow
> the standard behavior under linux, etc; but I think the current
> behavior should be retained under hpux.
> 
> Sorry, I haven't had a chance to look at the details of your change.
> I've been busy and a few GCC targets are broken...

The patch only affects the .equ directive. It does not change .set in any way.
It will only allow the case of:
		.equ VAR,VALUE
which was printing an error message before.
So, it doesn't change any currently existing behavior. 
Instead it's only adding a "new way" to use the .equ directive in a typical "gas" way.

As a background story:
Originally I wanted to add support for
VAR		.equ  VALUE
as it's e.g. documented here: http://docs.hp.com/en/92432-90012/ch02.html
(JAN   .equ  1).
But this is in contrast to what gas (in as.info) states, since it does not end with a colon:
"  For HPPA targets, labels need not be immediately followed by a
"colon, but the definition of a label must begin in column zero.  This
"also implies that only one label may be defined on each line.
"    label:     .directive    followed by something
...
Sadly I until now failed to get  this working as well :-(

Helge
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On Tuesday 28 November 2006 20:20, Helge Deller wrote:
> As a background story:
> Originally I wanted to add support for
> VAR		.equ  VALUE
> as it's e.g. documented here: http://docs.hp.com/en/92432-90012/ch02.html
> (JAN   .equ  1).

There is more broken:

deller@c3000:~/binutils/run/bin$ cat test.s
AA       .equ  4
BB      .equ  6
deller@c3000:~/binutils/run/bin$ as test.s
test.s: Assembler messages:
test.s:1: Error: Unknown opcode: `aa'
test.s:2: Error: Invalid operands

although as.info states:

7.37 `.equ SYMBOL, EXPRESSION'
==============================

This directive sets the value of SYMBOL to EXPRESSION.  It is
synonymous with `.set'; see *Note `.set': Set.

   The syntax for `equ' on the HPPA is `SYMBOL .equ EXPRESSION'.

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Subject: Re: [parisc-linux] [PATCH] hppa-linux-gas binutils patch
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To: deller@gmx.de (Helge Deller)
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> It will only allow the case of:
> 		.equ VAR,VALUE
> which was printing an error message before.
> So, it doesn't change any currently existing behavior. 

It adds new behavior which was previously invalid.  The above syntax
isn't valid using HP as and previously gas syntax mirrored the HP
syntax.  So, you have to convince the binutils maintainers that the
above extension is compatible with what exists now.  For example,

LABEL:	.equ VALUE
	.equ VAR,VALUE
LABEL1: .equ VAR,VALUE	; ???

Do these all work correctly?

> As a background story:
> Originally I wanted to add support for
> VAR		.equ  VALUE
> as it's e.g. documented here: http://docs.hp.com/en/92432-90012/ch02.html
> (JAN   .equ  1).
> But this is in contrast to what gas (in as.info) states, since it does not end with a colon:
> "  For HPPA targets, labels need not be immediately followed by a
> "colon, but the definition of a label must begin in column zero.  This
> "also implies that only one label may be defined on each line.
> "    label:     .directive    followed by something
> ...
> Sadly I until now failed to get  this working as well :-(

I believe the labels must be followed by followed by a colon on linux.
On hpux, the colon is optional.  HP as wants no colon.  Note that labels
don't have to be on the same line as the directive.  Thus, I believe that

label:	.equ	VALUE

should work on linux.

I'm not sure the in comment in as.info about only one label per line
is correct.  There's a line termination character that allows multiple
directives per line.  It's useful in macros.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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> deller@c3000:~/binutils/run/bin$ cat test.s
> AA       .equ  4
> BB      .equ  6
> deller@c3000:~/binutils/run/bin$ as test.s
> test.s: Assembler messages:
> test.s:1: Error: Unknown opcode: `aa'
> test.s:2: Error: Invalid operands

This is because the linux target was changed to require colons after
labels.  As a result, operands can start in the first column of a line.
Under hpux, there needs to be at least one white space character before
an operand and labels have to start in the first column.

> although as.info states:
> 
> 7.37 `.equ SYMBOL, EXPRESSION'
> ==============================
> 
> This directive sets the value of SYMBOL to EXPRESSION.  It is
> synonymous with `.set'; see *Note `.set': Set.
> 
>    The syntax for `equ' on the HPPA is `SYMBOL .equ EXPRESSION'.

This doesn't reflect that SYMBOL needs to be followed by a colon
on HPPA linux.  So, the documentation needs updating.

Probably, the linux should have been updated to use the normal GNU
syntax when it was introduced.  Now, updating the syntax involves a
potential compatibility break with GCC and existing assembler code.
At the moment, I don't see a strong need to do the update.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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I've tried everything I can think of, but can't get the system to boot.
 I finally got smart and checked /proc/modules after a failed boot (at
the initramfs prompt) and found that only an ide driver was loaded.  Not
exactly what a C160 needs.

So, it doesn't look like a device ordering problem - it's a lack of
device problem.  Other than compiling a kernel to hard-code the correct
devices in, does anyone have suggestions as to how to get the right
drivers to auto-load?
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From: Kurt Fitzner <kfitzner@excelcia.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Debian etch rc1 & daily build install fail on C160
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The Zalos driver is missing from Debian.  I feel like an idiot now.

Is this missing by design?  Anyone I can convince to add it?
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From - Thu Nov 08 21:35:19 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] kernel crash with IPv6
Date: Sat, 2 Dec 2006 15:15:47 +0100
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Just got a kernel crash with our git tree code.
Not sure if this is generic problem or related to parisc.
I didn't investigated any further. 
Just reporting her in case someone has an idea.
IPV6 and serial console were enabled.
Turning IPV6 off fixed it for me.

Helge
-----------
rtc-test rtc-test.0: setting the system clock to 2006-12-02 14:04:48 (1165068288)
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 192.168.178.50, my address is 192.168.178.70
IP-Config: Complete:
      device=eth0, addr=192.168.178.70, mask=255.255.255.0, gw=192.168.178.1,
     host=c3000, domain=box, nis-domain=(none),
     bootserver=192.168.178.50, rootserver=192.168.178.50, rootpath=
md: Autodetecting RAID arrays.
skb_over_panic: text:1045715c len:56 put:16 head:8fa40a80 data:8fa40a90 tail:8fa40ac8 end:8fa40ac0 dev:eth0
kernel BUG at net/core/skbuff.c:93!
Backtrace:
 [<103e4b44>] skb_over_panic+0x74/0x84
 [<10457164>] ndisc_send_rs+0x268/0x4ac
 [<1044d15c>] addrconf_dad_completed+0x84/0xd8
 [<1044d09c>] addrconf_dad_timer+0xe8/0x124
 [<10131360>] run_timer_softirq+0x140/0x1dc
 [<1012c7b0>] __do_softirq+0x60/0xcc
 [<101042f0>] do_softirq+0x38/0x48
 [<101084ac>] do_cpu_irq_mask+0xf0/0x11c
 [<1010b068>] intr_return+0x0/0xc
 [<102a19ac>] serial8250_console_putchar+0x34/0x108
 [<10127370>] vprintk+0x2b8/0x2f4
 [<10127368>] vprintk+0x2b0/0x2f4
 [<101270ac>] printk+0x20/0x2c
 [<10398220>] autostart_arrays+0x28/0xd4
 [<103960fc>] md_ioctl+0x44c/0x474
 [<1023e6bc>] blkdev_driver_ioctl+0x58/0x64

Kernel panic - not syncing: BUG!
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] [PATCH] hppa-linux-gas binutils patch
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On Thursday 30 November 2006 17:13, John David Anglin wrote:
> > deller@c3000:~/binutils/run/bin$ cat test.s
> > AA       .equ  4
> > BB      .equ  6
> > deller@c3000:~/binutils/run/bin$ as test.s
> > test.s: Assembler messages:
> > test.s:1: Error: Unknown opcode: `aa'
> > test.s:2: Error: Invalid operands
> 
> This is because the linux target was changed to require colons after
> labels.  ....

yes.

> > although as.info states:
> > 
> > 7.37 `.equ SYMBOL, EXPRESSION'
> > ==============================
> > 
> > This directive sets the value of SYMBOL to EXPRESSION.  It is
> > synonymous with `.set'; see *Note `.set': Set.
> > 
> >    The syntax for `equ' on the HPPA is `SYMBOL .equ EXPRESSION'.
> 
> This doesn't reflect that SYMBOL needs to be followed by a colon
> on HPPA linux.  So, the documentation needs updating.

yes.

> Probably, the linux should have been updated to use the normal GNU
> syntax when it was introduced.  

yes

> Now, updating the syntax involves a 
> potential compatibility break with GCC and existing assembler code.

This is IMHO only true if things suddenly are not allowed any longer which were allowed before.
But my patch just "adds" a new syntax. It does not revert or bails on any existing one.

> At the moment, I don't see a strong need to do the update.

Technically yes, but I think if you have a "gnu as", why not allowing standard gnu style ?

The attached patch updates the documentation and code to additionally allow c):
a)
LABEL:		.equ VALUE		; NOTE: LABEL with COLON ':'
worked before on Linux, will still work. No idea about HPUX

b)
LABEL 		.equ VALUE		 ; NOTE: LABEL without COLON ':'
never worked on Linux, and will still not work. 
Standard on HPUX, so gnu as never followed HP-UX here.

c)
			.equ VAR,VALUE 
standard gnu syntax. Didn't worked before on Linux. Will work now.
HP-UX probably never allowed this one.

d)
LABEL:		.equ VAR,VALUE
never worked on Linux. Will still not work. Use eiter "LABEL:" or "VAR".
HP-UX probably never allowed this one.


Index: config/tc-hppa.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-hppa.c,v
retrieving revision 1.133
diff -u -r1.133 tc-hppa.c
--- config/tc-hppa.c	30 Oct 2006 01:09:18 -0000	1.133
+++ config/tc-hppa.c	2 Dec 2006 15:10:54 -0000
@@ -3262,7 +3262,7 @@
       return;
     }
 
-  /* Look up the opcode in the has table.  */
+  /* Look up the opcode in the hash table.  */
   if ((insn = (struct pa_opcode *) hash_find (op_hash, str)) == NULL)
     {
       as_bad ("Unknown opcode: `%s'", str);
@@ -6397,8 +6397,11 @@
     {
       if (reg)
 	as_bad (_(".REG must use a label"));
-      else
-	as_bad (_(".EQU must use a label"));
+      else {
+	/* Try gas' standard ".equ X,Y" pseudo opcode.  */
+      	s_set(0);
+	return;
+      }
     }
 
   pa_undefine_label ();
 
Index: doc/as.texinfo
===================================================================
RCS file: /cvs/src/src/gas/doc/as.texinfo,v
retrieving revision 1.155
diff -u -r1.155 as.texinfo
--- doc/as.texinfo	3 Nov 2006 07:29:37 -0000	1.155
+++ doc/as.texinfo	2 Dec 2006 15:10:56 -0000
@@ -4368,8 +4368,8 @@
 It is synonymous with @samp{.set}; see @ref{Set,,@code{.set}}.
 
 @ifset HPPA
-The syntax for @code{equ} on the HPPA is 
-@samp{@var{symbol} .equ @var{expression}}.
+On HPPA the following syntax may be used alternatively:
+@samp{@var{symbol:} .equ @var{expression}}
 @end ifset
 
 @ifset Z80
@@ -5671,8 +5671,8 @@
 file is the last value stored into it.
 
 @ifset HPPA
-The syntax for @code{set} on the HPPA is
-@samp{@var{symbol} .set @var{expression}}.
+Alternatively the syntax for @code{set} on the HPPA is
+@samp{@var{symbol:} .set @var{expression}}.
 @end ifset
 
 @ifset Z80
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Subject: Re: [parisc-linux] [PATCH] hppa-linux-gas binutils patch
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 carlos@baldric.uwo.ca
To: deller@gmx.de (Helge Deller)
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> a)
> LABEL:		.equ VALUE		; NOTE: LABEL with COLON ':'
> worked before on Linux, will still work. No idea about HPUX

It works on hpux.

> b)
> LABEL 		.equ VALUE		 ; NOTE: LABEL without COLON ':'
> never worked on Linux, and will still not work. 
> Standard on HPUX, so gnu as never followed HP-UX here.

This also works on hpux.  I don't understand your comment about
GNU as not following the behavior of HP as.  This is the only
variant allowed by HP as.

> c)
> 			.equ VAR,VALUE 
> standard gnu syntax. Didn't worked before on Linux. Will work now.
> HP-UX probably never allowed this one.

This isn't good enough.  Either it should work under hpux or be rejected.

> d)
> LABEL:		.equ VAR,VALUE
> never worked on Linux. Will still not work. Use eiter "LABEL:" or "VAR".
> HP-UX probably never allowed this one.

Probably, pa_equ should be updated to check that the rest of the line
is empty.  See s_set for an example.

> @@ -3262,7 +3262,7 @@
>        return;
>      }
>  
> -  /* Look up the opcode in the has table.  */
> +  /* Look up the opcode in the hash table.  */
>    if ((insn = (struct pa_opcode *) hash_find (op_hash, str)) == NULL)
>      {
>        as_bad ("Unknown opcode: `%s'", str);

This typo fix should be a separate patch.  It's fine with the addition
of a ChangeLog entry.

> @@ -6397,8 +6397,11 @@
>      {
>        if (reg)
>  	as_bad (_(".REG must use a label"));
> -      else
> -	as_bad (_(".EQU must use a label"));
> +      else {
> +	/* Try gas' standard ".equ X,Y" pseudo opcode.  */
> +      	s_set(0);
> +	return;
> +      }

I still have a problem with this part.  It drops the ".EQU must use a label"
error message and s_set has no equivalent error message.  In order to support
the alternative syntax, you need to parse the rest of the manner similar
to that done in s_set.  We need a message that handles both ".EQU must use
a label" and "expected symbol name".

The other problem that I see is the dropping of the check on the
expression value:

          fudge_reg_expressions = 1;
	  seg = expression (&exp);
	  fudge_reg_expressions = 0;
	  if (exp.X_op != O_constant
	      && exp.X_op != O_register)
	  ...

This is likely to be problematic under hpux.  Even under linux,
the two alternative forms don't handle equivalences in the same
way.  Compare what assign_symbol does compared with pa_equ.

It's certainly possible to do the checks described above.  However,
I have to wonder if it wouldn't be simpler to just do the following:

#if !(defined (OBJ_ELF) && (defined (TE_LINUX) || defined (TE_NetBSD)))
  {"equ", pa_equ, 0},
#endif

This would yield the normal GNU syntax under linux and netbsd, and
retain the existing syntax for other targets.  This might cause some
current code to fail but it's not a problem for GCC.

>  @ifset HPPA
> -The syntax for @code{equ} on the HPPA is 
> -@samp{@var{symbol} .equ @var{expression}}.
> +On HPPA the following syntax may be used alternatively:
> +@samp{@var{symbol:} .equ @var{expression}}

This also isn't quite right.  See my comment to "b)".  Symbol must
be a label symbol.

>  @ifset HPPA
> -The syntax for @code{set} on the HPPA is
> -@samp{@var{symbol} .set @var{expression}}.
> +Alternatively the syntax for @code{set} on the HPPA is
> +@samp{@var{symbol:} .set @var{expression}}.
>  @end ifset

Both the original and proposed change aren't right.  There is no
special handling for .set on HPPA (see md_pseudo_table).  So, the
HPPA bit can just be deleted.

In standard GNU syntax, .equ and .set are synonyms.  Since .set has
the standard behavior, it can be used instead of .equ.  That's why
I question modifying the syntax of .equ, but I will accept the
change if it provides a behavior similar to the current behavior.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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On Sat, Dec 02, 2006 at 03:15:47PM +0100, Helge Deller wrote:
> Just got a kernel crash with our git tree code.
> Not sure if this is generic problem or related to parisc.
> I didn't investigated any further. 
> Just reporting her in case someone has an idea.
> IPV6 and serial console were enabled.
> Turning IPV6 off fixed it for me.
> 

I think,

http://bugzilla.kernel.org/show_bug.cgi?id=7621

Cheers,
	Kyle



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Subject: [parisc-linux] Missing audio driver with 2.6.17-2 on B180L.
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Hello,


After installing Debian-parisc 2.6.17-2 on a B180L, there is no sound driver.
/dev/dsp is missing.
But the on board audio hardware was detected at boot time :

8. Merlin+ 180 Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x03f, 0x0007b }


What can be wrong and what is the best workaround to get audio working ?


Thanks in advance for all hints.

Jean-Pierre
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All:

Interrupts do not appear to work on my 755.  I have both a 715/50 and
755/99, and I'd like to get a secondary 3Com EtherLink III ISA card working
in an EISA slot.  The 3c509 driver loads fine on both boxes and the card
works just fine on my 715, but pinging on the 755 doesn't generate any
interrupts (at least none visible in /proc/interrupts).  Both boxes have the
same kernel (2.6.12.2) and kernel configuration.  Also, I turned debug on
for the eisa driver and output looks nearly identical on both boxes.  The
only difference appears to be that the EISA driver reports 'SEU4870 ISA
memory' in slot 2 of the EISA bus when its enumerated on the 755, but no
card is actually in slot 2.  Does anyone have any ISA card working on a 755?
Do I need to tweak anything in my config or source to get this to work
correctly?  From browsing the source, it appears that interrupts are now
edge triggered by default for the EISA irqs, right?

Thanks,
James


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Xref: news.gmane.org gmane.linux.ports.parisc:24130

Good news is with David's patch to fix up the workqueue changes,
the most recent Linus -git boots on my C8000. I still want to finish
cleaning up some of the compat signals fallout, but all the really
heavyweight changes have either been dropped or merged.

I'll try to keep better track of changes as they hit our development
git this time around...

	Cheers,
		Kyle M.

Browse the tree at,
http://www.kernel.org/git/?p=linux/kernel/git/kyle/parisc-2.6.git;a=summary

Shortlog for branch 'master':

David Howells (1):
      WorkStruct: Fix up some PA-RISC work items

Grant Grundler (1):
      [PARISC] Remove GCC_VERSION usage as suggested by Adrian Bunk

Helge Deller (4):
      [PARISC] Show more memory information and memory layout at bootup
      [PARISC] avoid compiler warnings when compiling 64bit
      [TRIVIAL] [PARISC] Fix module.c printk message, add missing ')'
      [PARISC] lasi_82596: use BUILD_BUG_ON() and constify static array

Kyle McMartin (5):
      [PARISC] Unbreak discontigmem mem_init()
      [PARISC] Reserve 1GB of space for vmalloc/tmpalias space on parisc64
      [PARISC] bloody printf fmt string warnings
      [PARISC] Remove duplicate PDC_PAT_CELL defines
      [PARISC] Move spinlock_t out of struct cpu_data

Mariusz Kozlowski (1):
      [PARISC] pdcpat remove extra brackets

Matthew Wilcox (6):
      [PARISC] Delete arch/parisc/mm/kmap.c again
      [PARISC] parisc-agp: Fix integer/pointer warning
      [PARISC] sparse fixes
      [PARISC] more sparse fixes
      [PARISC] Fix PCI bus numbering in the presence of Cardbus bridges
      [PARISC] Make Lasi Ethernet depend on GSC only

Ryan Bradetich (9):
      [PARISC] Fix ccio_request_resource when CONFIG_IOMMU_CCIO is not defined
      [PARISC] HPPB bus updates for E-Class systems
      [PARISC] [MUX] Mux driver bug fix
      [PARISC] [MUX] Mux driver updates
      [PARISC] [MUX] Claim resources for the Mux driver
      [PARISC] [MUX] Make the Serial Mux driver work as module
      [PARISC] [MUX] Detect multiple cards in the correct order
      [PARISC] [MUX] Correctly report the number of available ports
      [PARISC] [MUX] Get the hversion directly from the parisc_device

 arch/parisc/Makefile             |    8 +--
 arch/parisc/hpux/fs.c            |   26 +++---
 arch/parisc/hpux/sys_hpux.c      |   32 ++++----
 arch/parisc/kernel/drivers.c     |    8 +-
 arch/parisc/kernel/module.c      |    3 +-
 arch/parisc/kernel/pci-dma.c     |    2 +-
 arch/parisc/kernel/pci.c         |    4 +-
 arch/parisc/kernel/process.c     |    4 +-
 arch/parisc/kernel/smp.c         |   11 ++-
 arch/parisc/mm/init.c            |   64 ++++++++++++++-
 arch/parisc/mm/ioremap.c         |    6 +-
 arch/parisc/mm/kmap.c            |  166 -------------------------------------
 arch/parisc/oprofile/init.c      |    2 +-
 drivers/char/agp/parisc-agp.c    |    2 +-
 drivers/net/Kconfig              |    6 +-
 drivers/net/lasi_82596.c         |   34 ++------
 drivers/parisc/hppb.c            |   14 ++--
 drivers/parisc/iosapic_private.h |    2 +-
 drivers/parisc/lba_pci.c         |   34 +++++---
 drivers/parisc/led.c             |   12 ++--
 drivers/parisc/power.c           |    4 +-
 drivers/parisc/sba_iommu.c       |    2 +-
 drivers/serial/mux.c             |  167 ++++++++++++++++++++++++++++++--------
 include/asm-parisc/dma-mapping.h |    2 +-
 include/asm-parisc/page.h        |    6 +-
 include/asm-parisc/pdcpat.h      |   31 +-------
 include/asm-parisc/processor.h   |    1 -
 27 files changed, 303 insertions(+), 350 deletions(-)
 delete mode 100644 arch/parisc/mm/kmap.c
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Xref: news.gmane.org gmane.linux.ports.parisc:24131

I found the following patch, which recently went into Linus' 2.6.20-pre kernel very interesting:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7664c5a1da4711bb6383117f51b94c8dc8f3f1cd

as well as the implementations for i386 and x86-64:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=91768d6c2bad0d2766a166f13f2f57e197de3458
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c31a0bf3e1bc581676618db7492f18798fd0a73f

You might be able to get this into your trees with "git-cherry-pick 7664c5a1da4711bb6383117f51b94c8dc8f3f1cd".

The attached patch implements this for parisc, and my vmlinux (32bit) shows me after using it:
> hppa-linux-objdump -x vmlinux :
Idx Name          Size      VMA       LMA       File off  Algn
 16 __bug_table   000040a4  104a3000  104a3000  003a4000  2**0

So, there were 1379 BUG()'s covered by that change (0x40a4 = 16548, each entry 12 bytes => 1379 BUG calls).

Since I would like to submit this patch to our tree, I would like to get your feedback first:
- Is the "break" instruction the best one for this task ?
- will it affect runtime of the kernel (maybe break statements, although normally not executed, reduce throughput ?)
- should I submit it as soon as our parisc-tree has the necessary bits from mainline ?
- any other ideas ?

One idea I had was to encode the file line number into the instruction itself (in im5 & im13), since the break instruction is implemented as "break im5, im13" and 16bit fit easily in there.
This would save some space, but I would need to add some ifdefs in the generic implementation which I didn't wanted to touch yet.

Helge

------

[PATCH] Generic BUG for parisc

 arch/parisc/Kconfig              |    5 ++
 arch/parisc/kernel/module.c      |    4 +
 arch/parisc/kernel/traps.c       |   79 ++++++++++++++++-----------------------
 arch/parisc/kernel/vmlinux.lds.S |    2
 include/asm-parisc/bug.h         |   38 ++++++++++++++++--
 5 files changed, 76 insertions(+), 52 deletions(-)

    Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index d210123..a946776 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -29,6 +29,11 @@ config GENERIC_FIND_NEXT_BIT
 	bool
 	default y
 
+config GENERIC_BUG
+	bool
+	default y
+	depends on BUG
+
 config GENERIC_HWEIGHT
 	bool
 	default y
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 47ea4e4..1808f85 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -46,6 +46,7 @@
 #include <linux/fs.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
+#include <linux/bug.h>
 
 #include <asm/unwind.h>
 
@@ -851,10 +852,11 @@ int module_finalize(const Elf_Ehdr *hdr,
 	nsyms = newptr - (Elf_Sym *)symhdr->sh_addr;
 	DEBUGP("NEW num_symtab %lu\n", nsyms);
 	symhdr->sh_size = nsyms * sizeof(Elf_Sym);
-	return 0;
+	return module_bug_finalize(hdr, sechdrs, me);
 }
 
 void module_arch_cleanup(struct module *mod)
 {
 	deregister_unwind_table(mod);
+	module_bug_cleanup(mod);
 }
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 65cd6ca..af6df04 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -26,6 +26,7 @@
 #include <linux/interrupt.h>
 #include <linux/console.h>
 #include <linux/kallsyms.h>
+#include <linux/bug.h>
 
 #include <asm/assembly.h>
 #include <asm/system.h>
@@ -49,7 +50,7 @@
 DEFINE_SPINLOCK(pa_dbit_lock);
 #endif
 
-int printbinary(char *buf, unsigned long x, int nbits)
+static int printbinary(char *buf, unsigned long x, int nbits)
 {
 	unsigned long mask = 1UL << (nbits - 1);
 	while (mask != 0) {
@@ -204,6 +205,11 @@ HERE:
 	do_show_stack(&info);
 }
 
+int is_valid_bugaddr(unsigned long iaoq)
+{
+	return 1;
+}
+
 void die_if_kernel(char *str, struct pt_regs *regs, long err)
 {
 	if (user_mode(regs)) {
@@ -222,7 +228,7 @@ void die_if_kernel(char *str, struct pt_
 	oops_in_progress = 1;
 
 	/* Amuse the user in a SPARC fashion */
-	printk(
+	if (err) printk(
 "      _______________________________ \n"
 "     < Your System ate a SPARC! Gah! >\n"
 "      ------------------------------- \n"
@@ -242,8 +248,9 @@ void die_if_kernel(char *str, struct pt_
 	if (!console_drivers)
 		pdc_console_restart();
 	
-	printk(KERN_CRIT "%s (pid %d): %s (code %ld)\n",
-		current->comm, current->pid, str, err);
+	if (err)
+		printk(KERN_CRIT "%s (pid %d): %s (code %ld)\n",
+			current->comm, current->pid, str, err);
 	show_regs(regs);
 
 	if (in_interrupt())
@@ -273,70 +280,50 @@ int syscall_ipi(int (*syscall) (struct p
 
 /* gdb uses break 4,8 */
 #define GDB_BREAK_INSN 0x10004
-void handle_gdb_break(struct pt_regs *regs, int wot)
+static void handle_gdb_break(struct pt_regs *regs, int wot)
 {
 	struct siginfo si;
 
-	si.si_code = wot;
-	si.si_addr = (void __user *) (regs->iaoq[0] & ~3);
 	si.si_signo = SIGTRAP;
 	si.si_errno = 0;
+	si.si_code = wot;
+	si.si_addr = (void __user *) (regs->iaoq[0] & ~3);
 	force_sig_info(SIGTRAP, &si, current);
 }
 
-void handle_break(unsigned iir, struct pt_regs *regs)
+static void handle_break(struct pt_regs *regs)
 {
-	struct siginfo si;
-
-	switch(iir) {
-	case 0x00:
-#ifdef PRINT_USER_FAULTS
-		printk(KERN_DEBUG "break 0,0: pid=%d command='%s'\n",
-		       current->pid, current->comm);
-#endif
-		die_if_kernel("Breakpoint", regs, 0);
-#ifdef PRINT_USER_FAULTS
-		show_regs(regs);
-#endif
-		si.si_code = TRAP_BRKPT;
-		si.si_addr = (void __user *) (regs->iaoq[0] & ~3);
-		si.si_signo = SIGTRAP;
-		force_sig_info(SIGTRAP, &si, current);
-		break;
+	unsigned iir = regs->iir;
 
-	case GDB_BREAK_INSN:
-		die_if_kernel("Breakpoint", regs, 0);
-		handle_gdb_break(regs, TRAP_BRKPT);
-		break;
+	if (unlikely(iir == PARISC_BUG_BREAK_INSN && !user_mode(regs))) {
+		/* check if a BUG() or WARN_ON() trapped here.  */
+		enum bug_trap_type tt;
+		tt = report_bug(regs->iaoq[0] & ~3);
+		die_if_kernel("Unknown kernel breakpoint", regs, 
+			(tt == BUG_TRAP_TYPE_NONE) ? 9 : 0);
+	}
 
-	default:
 #ifdef PRINT_USER_FAULTS
-		printk(KERN_DEBUG "break %#08x: pid=%d command='%s'\n",
-		       iir, current->pid, current->comm);
+	if (unlikely(iir != GDB_BREAK_INSN)) {
+		printk(KERN_DEBUG "break %d,%d: pid=%d command='%s'\n",
+			(iir>>13) & ((1<<13)-1), iir & 31,
+			current->pid, current->comm);
 		show_regs(regs);
-#endif
-		si.si_signo = SIGTRAP;
-		si.si_code = TRAP_BRKPT;
-		si.si_addr = (void __user *) (regs->iaoq[0] & ~3);
-		force_sig_info(SIGTRAP, &si, current);
-		return;
 	}
-}
-
+#endif
 
-int handle_toc(void)
-{
-	printk(KERN_CRIT "TOC call.\n");
-	return 0;
+	/* send standard GDB signal */
+	handle_gdb_break(regs, TRAP_BRKPT);
 }
 
+
 static void default_trap(int code, struct pt_regs *regs)
 {
 	printk(KERN_ERR "Trap %d on CPU %d\n", code, smp_processor_id());
 	show_regs(regs);
 }
 
-void (*cpu_lpmc) (int code, struct pt_regs *regs) = default_trap;
+void (*cpu_lpmc) (int code, struct pt_regs *regs) __read_mostly = default_trap;
 
 
 void transfer_pim_to_trap_frame(struct pt_regs *regs)
@@ -572,7 +559,7 @@ void handle_interruption(int code, struc
 
 	case  9:
 		/* Break instruction trap */
-		handle_break(regs->iir,regs);
+		handle_break(regs);
 		return;
 	
 	case 10:
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 7b943b4..7b149df 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -68,6 +68,8 @@ SECTIONS
 
   RODATA
 
+  BUG_TABLE
+
   /* writeable */
   . = ALIGN(ASM_PAGE_SIZE);	/* Make sure this is page aligned so
   				   that we can properly leave these
diff --git a/include/asm-parisc/bug.h b/include/asm-parisc/bug.h
index 695588d..b01c34b 100644
--- a/include/asm-parisc/bug.h
+++ b/include/asm-parisc/bug.h
@@ -1,14 +1,42 @@
 #ifndef _PARISC_BUG_H
 #define _PARISC_BUG_H
 
+/*
+ * Tell the user there is some problem.
+ * The offending file and line are encoded in the __bug_table section.
+ */
+
 #ifdef CONFIG_BUG
 #define HAVE_ARCH_BUG
-#define BUG() do { \
-	printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
-	dump_stack(); \
-	panic("BUG!"); \
-} while (0)
+
+/* the break instruction is used as BUG() marker.  */
+#define	PARISC_BUG_BREAK_ASM	"break 0x1f, 0x1fff"
+#define	PARISC_BUG_BREAK_INSN	0x03ffe01f  /* PARISC_BUG_BREAK_ASM */
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+#define BUG()								\
+	do {								\
+		asm volatile("\n"					\
+			     "1:\t" PARISC_BUG_BREAK_ASM "\n"		\
+			     "\t.pushsection __bug_table,\"a\"\n"	\
+			     "2:\t.long 1b, %c0\n"			\
+			     "\t.short %c1, 0\n"			\
+			     "\t.org 2b+%c2\n"				\
+			     "\t.popsection"				\
+			     : : "i" (__FILE__), "i" (__LINE__),	\
+			     "i" (sizeof(struct bug_entry)) );		\
+		for(;;) ;						\
+	} while(0)
+
+#else
+#define BUG()								\
+	do {								\
+		asm volatile("break 0x1f, 0x1fff\n" : : );		\
+		for(;;) ;						\
+	} while(0)
+#endif
 #endif
 
 #include <asm-generic/bug.h>
 #endif
+
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Subject: [parisc-linux] ISA Nic in an HP9000 D-class - possible?
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The on-board NIC on my server died and as far as I can tell the two EISA
INP0500 nics that came with it, are not supported.  I see that the drivers
for 3C509s are in the drivers directory, but can the HP9000 and moreover
Linux support an ISA card in an EISA slot?

Any help in getting my machine back on the line would be greatly appreciated.



Alan

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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] Generic BUG for parisc
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On Sat, Dec 09, 2006 at 04:28:38PM +0100, Helge Deller wrote:
> I found the following patch, which recently went into Linus' 2.6.20-pre kernel very interesting:
> http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7664c5a1da4711bb6383117f51b94c8dc8f3f1cd

Indeed. that's cool.

...
> The attached patch implements this for parisc, and my vmlinux (32bit) shows me after using it:
> > hppa-linux-objdump -x vmlinux :
> Idx Name          Size      VMA       LMA       File off  Algn
>  16 __bug_table   000040a4  104a3000  104a3000  003a4000  2**0
> 
> So, there were 1379 BUG()'s covered by that change (0x40a4 = 16548, each entry 12 bytes => 1379 BUG calls).
> 
> Since I would like to submit this patch to our tree, I would like to get your feedback first:
> - Is the "break" instruction the best one for this task ?
> - will it affect runtime of the kernel (maybe break statements, although normally not executed, reduce throughput ?)
> - should I submit it as soon as our parisc-tree has the necessary bits from mainline ?

This looks good to me.
It's up to kyle/willy on how they want it pushed back upstream.

I'm sure it will affect the runtime of the kernel becuase it moves
a fair chunk of code "out of line". Ie we should get slightly better
i-cache utilization with this change.

> - any other ideas ?

With this, we could use BUG() to _measure_ exactly how many times
we hit a particular BUG() test. It would be usefule to determine
how performance critical particular BUG() tests are.
Add a 32-bit counter to the generic struct bug_entry and then increment
that in the trap handler. Hrm...need a /proc or /sys interface
to dump all of them.

> One idea I had was to encode the file line number into the instruction
> itself (in im5 & im13), since the break instruction is implemented as
> "break im5, im13" and 16bit fit easily in there.
> This would save some space, but I would need to add some ifdefs in
> the generic implementation which I didn't wanted to touch yet.

I'd not worry about optimizations until after it's seen broader use.
Keep in mind 12 bytes (for 32-bit kernel) is only 3 instructions.
So each BUG() only uses 16 bytes + file name string. That's already a
major improvement over our existing BUG() which has to setup
printk()/dump_stack()/panic calls - at least 56 bytes (14 ops) each.

Keep in mind this change saves us around 55kB (1379*40).
Saving another 2 bytes isn't that critical.  IMHO, it's not
worth making things too complicated just to save another 3kB.

Kudos!

thanks,
grant



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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] [PATCH] Generic BUG for parisc
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> Since I would like to submit this patch to our tree, I would like to get your feedback first:
> - Is the "break" instruction the best one for this task ?

Yes, i think so.

> - will it affect runtime of the kernel (maybe break statements, although normally not executed, reduce throughput ?)

I think the way you have it is fine, the break traps only when executed, 
so it should not affect normal execution.

> - should I submit it as soon as our parisc-tree has the necessary bits from mainline ?
> - any other ideas ?

The only thing I noticed is that your patch has various "cleanups" or 
maybe just whitespace changes that is mixed it. It's not a big deal, but 
maybe it'll be cleaner if those are separated out.

> One idea I had was to encode the file line number into the instruction itself (in im5 & im13), since the break instruction is implemented as "break im5, im13" and 16bit fit easily in there.
> This would save some space, but I would need to add some ifdefs in the generic implementation which I didn't wanted to touch yet.

Please don't do this. It will make things confusing.

Note that there are some other tools that use the break infrastructure, 
and some of them will be in kernel space. For example, kdb uses "break" 
to implement breakpoints. If we implement tools like kprobes, they will 
probably need to use "break" too. We need to have unique break numbers 
if these tools were to coexist. For reference, the parisc kdb 
implementation uses the following:

+#define KDB_BREAK_BREAK 0x111          /* kdb breakpoint in kernel */
+#define KDB_BREAK_ENTER 0x112          /* KDB_ENTER() */
+
+#define PA_BREAK_INSN(n)       ((n)<<13)
+#define KDB_BREAK_BREAK_INSN   PA_BREAK_INSN(KDB_BREAK_BREAK)
+#define KDB_BREAK_ENTER_INSN   PA_BREAK_INSN(KDB_BREAK_ENTER)
+
+#define KDB_ENTER2(b)  asm("\tbreak 0,"#b"\n")
+#define KDB_ENTER1(b)  KDB_ENTER2(b)
+#define KDB_ENTER()    KDB_ENTER1(KDB_BREAK_ENTER)

my 2 cents :)
randolph



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Xref: news.gmane.org gmane.linux.ports.parisc:24135

On Sunday 10 December 2006 06:37, Grant Grundler wrote:
On Sunday 10 December 2006 14:38, Randolph Chung wrote:
...
Thanks a lot for your both's feedback!

In summary I read, that it's better to keep the patch like it is now without major changes.

Further possible enhancements would be:
- add performance couters to measure how often the tests ran
- implement WARN() the same way 

A slightly modified patch (in asm-parisc/bug.h) is attached. It still has 1-2 minimal other cleanups. 

Kyle/Willy: Do you think you can integrate this patch into what goes to Linus for 2.6.20 ?

Thanks!
Helge


diff-tree 571c18bb8c00794f38bc522a9d62d699ec17f9b8 (from 12166cbf2a4b90bc9d82262f52a8568362166f91)
Author: Helge Deller <deller@gmx.de>
Date:   Sat Dec 9 16:41:00 2006 +0100

    [PATCH] Generic BUG for parisc
    
     arch/parisc/Kconfig              |    5 ++
     arch/parisc/kernel/module.c      |    4 +
     arch/parisc/kernel/traps.c       |   79 ++++++++++++++++-----------------------
     arch/parisc/kernel/vmlinux.lds.S |    2
     include/asm-parisc/bug.h         |   38 ++++++++++++++++--
     5 files changed, 76 insertions(+), 52 deletions(-)
    
        Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index d210123..a946776 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -29,6 +29,11 @@ config GENERIC_FIND_NEXT_BIT
 	bool
 	default y
 
+config GENERIC_BUG
+	bool
+	default y
+	depends on BUG
+
 config GENERIC_HWEIGHT
 	bool
 	default y
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 47ea4e4..1808f85 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -46,6 +46,7 @@
 #include <linux/fs.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
+#include <linux/bug.h>
 
 #include <asm/unwind.h>
 
@@ -851,10 +852,11 @@ int module_finalize(const Elf_Ehdr *hdr,
 	nsyms = newptr - (Elf_Sym *)symhdr->sh_addr;
 	DEBUGP("NEW num_symtab %lu\n", nsyms);
 	symhdr->sh_size = nsyms * sizeof(Elf_Sym);
-	return 0;
+	return module_bug_finalize(hdr, sechdrs, me);
 }
 
 void module_arch_cleanup(struct module *mod)
 {
 	deregister_unwind_table(mod);
+	module_bug_cleanup(mod);
 }
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 65cd6ca..af6df04 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -26,6 +26,7 @@
 #include <linux/interrupt.h>
 #include <linux/console.h>
 #include <linux/kallsyms.h>
+#include <linux/bug.h>
 
 #include <asm/assembly.h>
 #include <asm/system.h>
@@ -49,7 +50,7 @@
 DEFINE_SPINLOCK(pa_dbit_lock);
 #endif
 
-int printbinary(char *buf, unsigned long x, int nbits)
+static int printbinary(char *buf, unsigned long x, int nbits)
 {
 	unsigned long mask = 1UL << (nbits - 1);
 	while (mask != 0) {
@@ -204,6 +205,11 @@ HERE:
 	do_show_stack(&info);
 }
 
+int is_valid_bugaddr(unsigned long iaoq)
+{
+	return 1;
+}
+
 void die_if_kernel(char *str, struct pt_regs *regs, long err)
 {
 	if (user_mode(regs)) {
@@ -222,7 +228,7 @@ void die_if_kernel(char *str, struct pt_
 	oops_in_progress = 1;
 
 	/* Amuse the user in a SPARC fashion */
-	printk(
+	if (err) printk(
 "      _______________________________ \n"
 "     < Your System ate a SPARC! Gah! >\n"
 "      ------------------------------- \n"
@@ -242,8 +248,9 @@ void die_if_kernel(char *str, struct pt_
 	if (!console_drivers)
 		pdc_console_restart();
 	
-	printk(KERN_CRIT "%s (pid %d): %s (code %ld)\n",
-		current->comm, current->pid, str, err);
+	if (err)
+		printk(KERN_CRIT "%s (pid %d): %s (code %ld)\n",
+			current->comm, current->pid, str, err);
 	show_regs(regs);
 
 	if (in_interrupt())
@@ -273,70 +280,50 @@ int syscall_ipi(int (*syscall) (struct p
 
 /* gdb uses break 4,8 */
 #define GDB_BREAK_INSN 0x10004
-void handle_gdb_break(struct pt_regs *regs, int wot)
+static void handle_gdb_break(struct pt_regs *regs, int wot)
 {
 	struct siginfo si;
 
-	si.si_code = wot;
-	si.si_addr = (void __user *) (regs->iaoq[0] & ~3);
 	si.si_signo = SIGTRAP;
 	si.si_errno = 0;
+	si.si_code = wot;
+	si.si_addr = (void __user *) (regs->iaoq[0] & ~3);
 	force_sig_info(SIGTRAP, &si, current);
 }
 
-void handle_break(unsigned iir, struct pt_regs *regs)
+static void handle_break(struct pt_regs *regs)
 {
-	struct siginfo si;
-
-	switch(iir) {
-	case 0x00:
-#ifdef PRINT_USER_FAULTS
-		printk(KERN_DEBUG "break 0,0: pid=%d command='%s'\n",
-		       current->pid, current->comm);
-#endif
-		die_if_kernel("Breakpoint", regs, 0);
-#ifdef PRINT_USER_FAULTS
-		show_regs(regs);
-#endif
-		si.si_code = TRAP_BRKPT;
-		si.si_addr = (void __user *) (regs->iaoq[0] & ~3);
-		si.si_signo = SIGTRAP;
-		force_sig_info(SIGTRAP, &si, current);
-		break;
+	unsigned iir = regs->iir;
 
-	case GDB_BREAK_INSN:
-		die_if_kernel("Breakpoint", regs, 0);
-		handle_gdb_break(regs, TRAP_BRKPT);
-		break;
+	if (unlikely(iir == PARISC_BUG_BREAK_INSN && !user_mode(regs))) {
+		/* check if a BUG() or WARN_ON() trapped here.  */
+		enum bug_trap_type tt;
+		tt = report_bug(regs->iaoq[0] & ~3);
+		die_if_kernel("Unknown kernel breakpoint", regs, 
+			(tt == BUG_TRAP_TYPE_NONE) ? 9 : 0);
+	}
 
-	default:
 #ifdef PRINT_USER_FAULTS
-		printk(KERN_DEBUG "break %#08x: pid=%d command='%s'\n",
-		       iir, current->pid, current->comm);
+	if (unlikely(iir != GDB_BREAK_INSN)) {
+		printk(KERN_DEBUG "break %d,%d: pid=%d command='%s'\n",
+			(iir>>13) & ((1<<13)-1), iir & 31,
+			current->pid, current->comm);
 		show_regs(regs);
-#endif
-		si.si_signo = SIGTRAP;
-		si.si_code = TRAP_BRKPT;
-		si.si_addr = (void __user *) (regs->iaoq[0] & ~3);
-		force_sig_info(SIGTRAP, &si, current);
-		return;
 	}
-}
-
+#endif
 
-int handle_toc(void)
-{
-	printk(KERN_CRIT "TOC call.\n");
-	return 0;
+	/* send standard GDB signal */
+	handle_gdb_break(regs, TRAP_BRKPT);
 }
 
+
 static void default_trap(int code, struct pt_regs *regs)
 {
 	printk(KERN_ERR "Trap %d on CPU %d\n", code, smp_processor_id());
 	show_regs(regs);
 }
 
-void (*cpu_lpmc) (int code, struct pt_regs *regs) = default_trap;
+void (*cpu_lpmc) (int code, struct pt_regs *regs) __read_mostly = default_trap;
 
 
 void transfer_pim_to_trap_frame(struct pt_regs *regs)
@@ -572,7 +559,7 @@ void handle_interruption(int code, struc
 
 	case  9:
 		/* Break instruction trap */
-		handle_break(regs->iir,regs);
+		handle_break(regs);
 		return;
 	
 	case 10:
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 7b943b4..7b149df 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -68,6 +68,8 @@ SECTIONS
 
   RODATA
 
+  BUG_TABLE
+
   /* writeable */
   . = ALIGN(ASM_PAGE_SIZE);	/* Make sure this is page aligned so
   				   that we can properly leave these
diff --git a/include/asm-parisc/bug.h b/include/asm-parisc/bug.h
index 695588d..367e458 100644
--- a/include/asm-parisc/bug.h
+++ b/include/asm-parisc/bug.h
@@ -1,14 +1,42 @@
 #ifndef _PARISC_BUG_H
 #define _PARISC_BUG_H
 
+/*
+ * Tell the user there is some problem.
+ * The offending file and line are encoded in the __bug_table section.
+ */
+
 #ifdef CONFIG_BUG
 #define HAVE_ARCH_BUG
-#define BUG() do { \
-	printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
-	dump_stack(); \
-	panic("BUG!"); \
-} while (0)
+
+/* the break instruction is used as BUG() marker.  */
+#define	PARISC_BUG_BREAK_ASM	"break 0x1f, 0x1fff"
+#define	PARISC_BUG_BREAK_INSN	0x03ffe01f  /* PARISC_BUG_BREAK_ASM */
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+#define BUG()								\
+	do {								\
+		asm volatile("\n"					\
+			     "1:\t" PARISC_BUG_BREAK_ASM "\n"		\
+			     "\t.pushsection __bug_table,\"a\"\n"	\
+			     "2:\t.long 1b, %c0\n"			\
+			     "\t.short %c1, 0\n"			\
+			     "\t.org 2b+%c2\n"				\
+			     "\t.popsection"				\
+			     : : "i" (__FILE__), "i" (__LINE__),	\
+			     "i" (sizeof(struct bug_entry)) );		\
+		for(;;) ;						\
+	} while(0)
+
+#else
+#define BUG()								\
+	do {								\
+		asm volatile(PARISC_BUG_BREAK_ASM : : );		\
+		for(;;) ;						\
+	} while(0)
+#endif
 #endif
 
 #include <asm-generic/bug.h>
 #endif
+
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Xref: news.gmane.org gmane.linux.ports.parisc:24136

Hi Dave,

On Saturday 02 December 2006 22:13, John David Anglin wrote:
> > a)
> > LABEL:		.equ VALUE		; NOTE: LABEL with COLON ':'
> > worked before on Linux, will still work. No idea about HPUX
> 
> It works on hpux.
> 
> > b)
> > LABEL 		.equ VALUE		 ; NOTE: LABEL without COLON ':'
> > never worked on Linux, and will still not work. 
> > Standard on HPUX, so gnu as never followed HP-UX here.
> 
> This also works on hpux.  I don't understand your comment about
> GNU as not following the behavior of HP as.  This is the only
> variant allowed by HP as.

I'm not sure why you didn't understood it... Maybe you just mis-read my comment ?
GNU as on Linux does _not_ accept this one, while HP as _accepts_ this syntax only.
So, GNU as and HP as differ in this one, and GNU as does not implement what HP as does.

> > c)
> > 			.equ VAR,VALUE 
> > standard gnu syntax. Didn't worked before on Linux. Will work now.
> > HP-UX probably never allowed this one.
> 
> This isn't good enough.  Either it should work under hpux or be rejected.

I think this is the culprit.
You say, that if this syntax isn't allowed on HP/UX, then it shouldn't be allowed at all on Linux either.

My thinking is, that it seems to be allowed on Linux on most(all?) platforms _except_ PARISC.
The idea of my patch was to make GNU as on Linux/HPPA understand the same things as GNU as on other _Linux_ platforms.
That's completely unrelated to and ignoring what HP as allows or forbid.

> > d)
> > LABEL:		.equ VAR,VALUE
> > never worked on Linux. Will still not work. Use eiter "LABEL:" or "VAR".
> > HP-UX probably never allowed this one.
> 
> Probably, pa_equ should be updated to check that the rest of the line
> is empty.  See s_set for an example.

But then it would be incompatible to HP-as as well.... ?!?
It's inconsitent with your comment to c)

> > @@ -3262,7 +3262,7 @@
> >        return;
> >      }
> >  
> > -  /* Look up the opcode in the has table.  */
> > +  /* Look up the opcode in the hash table.  */
> >    if ((insn = (struct pa_opcode *) hash_find (op_hash, str)) == NULL)
> >      {
> >        as_bad ("Unknown opcode: `%s'", str);
> 
> This typo fix should be a separate patch.  It's fine with the addition
> of a ChangeLog entry.

Ok.

> > @@ -6397,8 +6397,11 @@
> >      {
> >        if (reg)
> >  	as_bad (_(".REG must use a label"));
> > -      else
> > -	as_bad (_(".EQU must use a label"));
> > +      else {
> > +	/* Try gas' standard ".equ X,Y" pseudo opcode.  */
> > +      	s_set(0);
> > +	return;
> > +      }
> 
> I still have a problem with this part.  It drops the ".EQU must use a label"
> error message and s_set has no equivalent error message.  In order to support
> the alternative syntax, you need to parse the rest of the manner similar
> to that done in s_set.  We need a message that handles both ".EQU must use
> a label" and "expected symbol name".

Why do you want the ".EQU must use a label" message ?
Either the user writes
	LABEL:		.equ 5
or
				.equ LABEL , 5
In both variants the user gets a correct error message if the syntax was written wrong.

> The other problem that I see is the dropping of the check on the
> expression value:
> 
>           fudge_reg_expressions = 1;
> 	  seg = expression (&exp);
> 	  fudge_reg_expressions = 0;
> 	  if (exp.X_op != O_constant
> 	      && exp.X_op != O_register)
> 	  ...
> 
> This is likely to be problematic under hpux.  Even under linux,
> the two alternative forms don't handle equivalences in the same
> way.  Compare what assign_symbol does compared with pa_equ.

I would need to check this...
 
> It's certainly possible to do the checks described above.  However,
> I have to wonder if it wouldn't be simpler to just do the following:
> 
> #if !(defined (OBJ_ELF) && (defined (TE_LINUX) || defined (TE_NetBSD)))
>   {"equ", pa_equ, 0},
> #endif
> 
> This would yield the normal GNU syntax under linux and netbsd, and
> retain the existing syntax for other targets.  This might cause some
> current code to fail but it's not a problem for GCC.

I think this is my preferred solution.
(Is there any original HP assembly code at all compiled under Linux with GNU as ?)

> >  @ifset HPPA
> > -The syntax for @code{equ} on the HPPA is 
> > -@samp{@var{symbol} .equ @var{expression}}.
> > +On HPPA the following syntax may be used alternatively:
> > +@samp{@var{symbol:} .equ @var{expression}}
> 
> This also isn't quite right.  See my comment to "b)".  Symbol must
> be a label symbol.

Hmm... I just added the colon. What is exactly wrong ? Do you mean:
+@samp{@var{label:} .equ @var{expression}}

> >  @ifset HPPA
> > -The syntax for @code{set} on the HPPA is
> > -@samp{@var{symbol} .set @var{expression}}.
> > +Alternatively the syntax for @code{set} on the HPPA is
> > +@samp{@var{symbol:} .set @var{expression}}.
> >  @end ifset
> 
> Both the original and proposed change aren't right.  There is no
> special handling for .set on HPPA (see md_pseudo_table).  So, the
> HPPA bit can just be deleted.

Ok.

> In standard GNU syntax, .equ and .set are synonyms.  Since .set has
> the standard behavior, it can be used instead of .equ.  That's why
> I question modifying the syntax of .equ, but I will accept the
> change if it provides a behavior similar to the current behavior.

I see...
- .set can be used instead of .equ
- but: .equ can not be used instead of .set

Or the other alternative would be to just change all ".equ" in ".set" in:
src/binutils/testsuite/binutils-all/localize-hidden-1.s


I'm not sure how to continue now.
I was just playing around with binutils for parisc and the testsuite failed.
My trivial patch fixed it, but it seems there are more changes necessary to
"provide a behavior similar to the current behavior". I think you are right
in asking for this, but personally I don't have time and interest to dig
deeper into this problem.
You said in another mail, that 
"At the moment, I don't see a strong need to do the update."
I agree on this and since it's not really important for me either, I'm better
dropping the whole patch now.

Thanks a lot for your feedback and suggestions,
Helge
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From: "Joel Soete" <soete.joel@scarlet.be>
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Subject: [parisc-linux] About lockdep: failed to build
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Xref: news.gmane.org gmane.linux.ports.parisc:24137

Hi all,

Just giving a try of new lock dep, I got following build failure:

mkdir -p arch/parisc/kernel/
  hppa64-linux-gnu-gcc -Wp,-MD,arch/parisc/kernel/.asm-offsets.s.d  -nost=
dinc
-isystem /usr/lib/gcc/hppa64-linux-gnu/4.1.2/include -
D__KERNEL__ -Iinclude -Iinclude2 -I/CAD/linux-2.6.19-lockdep-20061207/inc=
lude
-include include/linux/autoconf.h -I/CAD/linux-2.6.19-
lockdep-20061207/. -I. -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -O2 -pipe -mno-space-regs -
mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=3D2.0
-mschedule=3D8000 -fomit-frame-pointer -fno-stack-protector -Wdec
laration-after-statement -Wno-pointer-sign  -D"KBUILD_STR(s)=3D#s"
-D"KBUILD_BASENAME=3DKBUILD_STR(asm_offsets)"  -D"KBUILD_MODNAME=3DKBUI
LD_STR(asm_offsets)" -fverbose-asm -S -o arch/parisc/kernel/asm-offsets.s=

/CAD/linux-2.6.19-lockdep-20061207/arch/parisc/kernel/asm-
offsets.c
In file included from include2/asm/bitops.h:7,
                 from /CAD/linux-2.6.19-lockdep-20061207/include/linux/bi=
tops.h:9,
                 from
/CAD/linux-2.6.19-lockdep-20061207/include/linux/thread_info.h:20,
                 from
/CAD/linux-2.6.19-lockdep-20061207/include/linux/preempt.h:9,
                 from
/CAD/linux-2.6.19-lockdep-20061207/include/linux/spinlock.h:49,
                 from
/CAD/linux-2.6.19-lockdep-20061207/include/linux/capability.h:45,
                 from /CAD/linux-2.6.19-lockdep-20061207/include/linux/sc=
hed.h:46,
                 from
/CAD/linux-2.6.19-lockdep-20061207/arch/parisc/kernel/asm-offsets.c:31:
include2/asm/atomic.h: In function '__atomic_add_return':
include2/asm/atomic.h:143: error: too many arguments to function
'__raw_local_irq_save'
include2/asm/atomic.h:147: warning: implicit declaration of function
'__raw_local_irq_restore'
include2/asm/atomic.h: In function 'atomic_set':
include2/asm/atomic.h:154: error: too many arguments to function
'__raw_local_irq_save'
include2/asm/atomic.h: In function '__atomic64_add_return':
include2/asm/atomic.h:233: error: too many arguments to function
'__raw_local_irq_save'
include2/asm/atomic.h: In function 'atomic64_set':
include2/asm/atomic.h:245: error: too many arguments to function
'__raw_local_irq_save'
In file included from /CAD/linux-2.6.19-lockdep-20061207/include/linux/bi=
tops.h:9,
                 from
/CAD/linux-2.6.19-lockdep-20061207/include/linux/thread_info.h:20,
                 from
/CAD/linux-2.6.19-lockdep-20061207/include/linux/preempt.h:9,
                 from
/CAD/linux-2.6.19-lockdep-20061207/include/linux/spinlock.h:49,
                 from
/CAD/linux-2.6.19-lockdep-20061207/include/linux/capability.h:45,
                 from /CAD/linux-2.6.19-lockdep-20061207/include/linux/sc=
hed.h:46,
                 from
/CAD/linux-2.6.19-lockdep-20061207/arch/parisc/kernel/asm-offsets.c:31:
include2/asm/bitops.h: In function 'set_bit':
include2/asm/bitops.h:33: error: too many arguments to function
'__raw_local_irq_save'
include2/asm/bitops.h: In function 'clear_bit':
include2/asm/bitops.h:44: error: too many arguments to function
'__raw_local_irq_save'
include2/asm/bitops.h: In function 'change_bit':
include2/asm/bitops.h:55: error: too many arguments to function
'__raw_local_irq_save'
include2/asm/bitops.h: In function 'test_and_set_bit':
include2/asm/bitops.h:67: error: too many arguments to function
'__raw_local_irq_save'
include2/asm/bitops.h: In function 'test_and_clear_bit':
include2/asm/bitops.h:82: error: too many arguments to function
'__raw_local_irq_save'
include2/asm/bitops.h: In function 'test_and_change_bit':
include2/asm/bitops.h:97: error: too many arguments to function
'__raw_local_irq_save'
make[2]: *** [arch/parisc/kernel/asm-offsets.s] Error 1
make[1]: *** [prepare0] Error 2
make: *** [vmlinux] Error 2

A quick look at the first pb into precompile stuff:
asm-offsets.i
[snip]
static __inline__ __attribute__((always_inline)) int __atomic_add_return(=
int
i, atomic_t *v)
{
 int ret;
 unsigned long flags;
 do { raw_spinlock_t *s =3D (&(__atomic_hash[ (((unsigned long) v)/64) & =
(4 -1)
])); __raw_local_irq_save(flags); __raw_spin_lock_flag
s(s, 0); } while(0);

 ret =3D (v->counter +=3D i);
[snip]

May be did I missed something in my git download:
As it's on another system I first clone git tree:
    # git-clone http://www.parisc-linux.org/git/linux-2.6.git parisc-2.6
(no other protocle available)
    # cd parisc-2.6
    # git-pull origin lockdep:lockdep

(a quick check seems that
<http://git.parisc-linux.org/?p=3Dlinux-2.6.git;a=3Dcommitdiff;h=3D424ecd=
8b73ae27bd97bf2f8e987239d3d2ee2d08>
is well in this local tree?)

Hth,
    Joel

PS: Just quick and dirty test, unfortunately I don't have any more much m=
ore
time to investigate in more details, sorry.---=0AScarlet One - Combinez l=
'ADSL avec la telephonie fixe illimitee et epargnez 400 euros=0Ahttp://ww=
w.scarlet.be =0A

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Xref: news.gmane.org gmane.linux.ports.parisc:24138

This patch tries to get rid of our current "blow away the tlb on each 
fork()" behavior in SMP builds. Tested lightly on pa8800. Comments welcome.

I say "improvement" in quotes because I did not see a significant perf 
improvement in kernel build times, but theoretically it should be more 
performant :)

I think we need to do some threading testcases to exercise this 
sufficiently.... any volunteers? :)

randolph

diff --git a/include/asm-parisc/tlbflush.h b/include/asm-parisc/tlbflush.h
index f662e83..2e8c2bd 100644
--- a/include/asm-parisc/tlbflush.h
+++ b/include/asm-parisc/tlbflush.h
@@ -39,21 +39,19 @@ extern void flush_tlb_all_local(void *);
   * etc. do not do that).
   */

-static inline void flush_tlb_mm(struct mm_struct *mm)
+static inline void __flush_tlb_mm(void *mmv)
  {
-       BUG_ON(mm == &init_mm); /* Should never happen */
+       struct mm_struct *mm = (struct mm_struct *)mmv;
+       if (mm == current->active_mm)
+               load_context(mm->context);
+}

-#ifdef CONFIG_SMP
-       flush_tlb_all();
-#else
-       if (mm) {
-               if (mm->context != 0)
-                       free_sid(mm->context);
-               mm->context = alloc_sid();
-               if (mm == current->active_mm)
-                       load_context(mm->context);
-       }
-#endif
+static inline void flush_tlb_mm(struct mm_struct *mm)
+{
+       if (mm->context != 0)
+               free_sid(mm->context);
+       mm->context = alloc_sid();
+       on_each_cpu(__flush_tlb_mm, mm, 1, 1);
  }

  extern __inline__ void flush_tlb_pgtables(struct mm_struct *mm, 
unsigned long s
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Xref: news.gmane.org gmane.linux.ports.parisc:24139

Maybe someone has an idea ?

The "adjtimex02" test from the Linux Test Project (http://ltp.sf.net) seems to pass all test, but triggers a kernel BUG in mm/mmap.c:1990 when exiting.
strace is attached below.


kernel BUG at mm/mmap.c:1990!

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001011 Not tainted
r00-03  0006ff0b 105a6810 10123e10 776a33a0
r04-07  00000000 776a33a0 00000000 0002695e
r08-11  bff5200a 0004b6d8 0004b6d8 0004b6d8
r12-15  00050ed8 00050ed8 0004b6d8 00050ed8
r16-19  bff527d8 0004b6d8 0004b6d8 00000001
r20-23  00000036 00000035 0000000b 00000000
r24-27  000000e2 8713eb00 10642cc0 104e6010
r28-31  00000000 00100277 7a480200 1016e564
sr00-03  00000000 00000000 00000000 00005040
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1015dc30 1015dc34
 IIR: 03ffe01f    ISR: 10240001  IOR: 8ea3ac00
 CPU:        0   CR30: 7a480000 CR31: 105d0000
 ORIG_R28: 00000000
 IAOQ[0]: exit_mmap+0x130/0x14c
 IAOQ[1]: exit_mmap+0x134/0x14c
 RP(r2): mmput+0x54/0xd0
Fixing recursive fault but reboot is needed!



root@c3000:~/ltp-full-20061121/testcases/kernel/syscalls/adjtimex# strace -f ./adjtimex02 2>&1 | tee strace.log
execve("./adjtimex02", ["./adjtimex02"], [/* 17 vars */]) = 0
newuname({sys="Linux", node="c3000", ...}) = 0
brk(0)                                  = 0x2c000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40000000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/opt/kde3/qt/lib/PARISC/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/opt/kde3/qt/lib/PARISC", 0xc05d5488) = -1 ENOENT (No such file or directory)
open("/opt/kde3/qt/lib/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/opt/kde3/qt/lib", {st_mode=0, st_size=0, ...}) = 0
open("/opt/kde3/lib/PARISC/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/opt/kde3/lib/PARISC", 0xc05d5488) = -1 ENOENT (No such file or directory)
open("/opt/kde3/lib/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/opt/kde3/lib", {st_mode=0, st_size=0, ...}) = 0
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 67082, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40214000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\1\364"..., 512) = 512
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 1364696, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x405c3000
mprotect(0x406f3000, 119512, PROT_NONE) = 0
mmap(0x40702000, 53248, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x12f000) = 0x40702000
mmap(0x4070f000, 4824, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4070f000
close(3)                                = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40001000
munmap(0x40214000, 67082)               = 0
brk(0)                                  = 0x2c000
brk(0x4d000)                            = 0x4d000
geteuid()                               = 0
rt_sigaction(SIGHUP, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGINT, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGQUIT, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGILL, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGTRAP, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGABRT, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGEMT, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGFPE, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGBUS, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGSEGV, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGSYS, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGPIPE, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGALRM, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGTERM, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGUSR1, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGUSR2, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGCHLD, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGPWR, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGVTALRM, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGPROF, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGIO, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGWINCH, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGTSTP, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGTTIN, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGTTOU, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGURG, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGLOST, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGUNUSED, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIG_32, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGXCPU, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGXFSZ, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIG_35, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGSTKFLT, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGRT_16, {0x26866, [], SA_RESTART}, {SIG_DFL}, 8) = 0
adjtimex({modes=0, offset=0, freq=0, maxerror=16384000, esterror=16384000, status=64, constant=2, precision=1, tolerance=33554432, time={1165876228, 740054}}) = 5
adjtimex(0xffffffff)                    = -1 EFAULT (Bad address)
fstat64(1, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40003000
adjtimex(0x26ae4)                       = -1 EINVAL (Invalid argument)
adjtimex(0x26ae4)                       = -1 EINVAL (Invalid argument)
adjtimex(0x26ae4)                       = -1 EINVAL (Invalid argument)
adjtimex(0x26ae4)                       = -1 EINVAL (Invalid argument)
socket(PF_FILE, SOCK_STREAM, 0)         = 3
fcntl64(3, F_GETFL)                     = 0x2 (flags O_RDWR)
fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK)  = 0
connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = 0
poll([{fd=3, events=POLLOUT|POLLERR|POLLHUP, revents=POLLOUT}], 1, 5000) = 1
writev(3, [{"\0\0\0\2\0\0\0\v\0\0\0\7", 12}, {"passwd\0", 7}], 2) = 19
poll([{fd=3, events=POLLIN|POLLERR|POLLHUP, revents=POLLIN|POLLHUP}], 1, 5000) = 1
recvmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"passwd\0", 7}], msg_controllen=16, {cmsg_len=16, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, {4}}, msg_flags=0}, MSG_NOSIGNAL) = 7
fstat64(4, {st_mode=0, st_size=0, ...}) = 0
pread(4, "\0\0\0\1\0\0\0h\0\0\0\320\0\0\0\0\0\0\0\0E}\255B\0\0\0"..., 104, 0) = 104
time(NULL)                              = 1165876228
close(4)                                = 0
close(3)                                = 0
socket(PF_FILE, SOCK_STREAM, 0)         = 3
fcntl64(3, F_GETFL)                     = 0x2 (flags O_RDWR)
fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK)  = 0
connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = 0
poll([{fd=3, events=POLLOUT|POLLERR|POLLHUP, revents=POLLOUT}], 1, 5000) = 1
writev(3, [{"\0\0\0\2\0\0\0\0\0\0\0\7", 12}, {"nobody\0", 7}], 2) = 19
poll([{fd=3, events=POLLIN|POLLERR|POLLHUP, revents=POLLIN|POLLHUP}], 1, 5000) = 1
read(3, "\0\0\0\2\0\0\0\1\0\0\0\7\0\0\0\2\0\0\377\376\0\0\377\376"..., 36) = 36
read(3, "nobody\0x\0nobody\0/nonexistent\0/bi"..., 37) = 37
close(3)                                = 0
setresuid(-1, 65534, -1)                = 0
adjtimex(0x26ae4)                       = -1 EPERM (Operation not permitted)
setresuid(-1, 0, -1)                    = 0
adjtimex({modes=16447, offset=0, freq=0, maxerror=16384000, esterror=16384000, status=64, constant=2, precision=1, tolerance=33554432, time={1165876228, 755765}}) = 5
write(1, "adjtimex02    1  PASS  :  Test P"..., 461adjtimex02    1  PASS  :  Test Passed, adjtimex() returned -1 with errno: 14
adjtimex02    2  PASS  :  Test Passed, adjtimex() returned -1 with errno: 22
adjtimex02    3  PASS  :  Test Passed, adjtimex() returned -1 with errno: 22
adjtimex02    4  PASS  :  Test Passed, adjtimex() returned -1 with errno: 22
adjtimex02    5  PASS  :  Test Passed, adjtimex() returned -1 with errno: 22
adjtimex02    6  PASS  :  Test Passed, adjtimex() returned -1 with errno: 1
) = 461
munmap(0x40003000, 4096)                = 0
exit_group(0)                           = ?


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Subject: Re: [parisc-linux] kernel BUG at mm/mmap.c:1990
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Xref: news.gmane.org gmane.linux.ports.parisc:24140

On 11/12/06, Helge Deller <deller@gmx.de> wrote:
> Maybe someone has an idea ?
>
> The "adjtimex02" test from the Linux Test Project (http://ltp.sf.net) seems to pass all test, but triggers a kernel BUG in mm/mmap.c:1990 when exiting.
> strace is attached below.
>
>
> kernel BUG at mm/mmap.c:1990!

8< (snip)

I posted a reduced testcase to trigger this several months ago, if
that would be useful to you.  I don't have it handy, though.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/



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Xref: news.gmane.org gmane.linux.ports.parisc:24141

On Mon, Dec 11, 2006 at 11:38:13PM +0100, Helge Deller wrote:
> Maybe someone has an idea ?
> 
> The "adjtimex02" test from the Linux Test Project (http://ltp.sf.net) seems to pass all test, but triggers a kernel BUG in mm/mmap.c:1990 when exiting.
> strace is attached below.
> 

iirc this only bites on 32bit kernels.

This is what Jeff is referring to:

/*
 * Testcase reduced from ltp, adjtimex02
 *
 * 1) adjtimex(2) fails with errno set to EFAULT if buf does
 *	   not point to writable memory
 */

#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/timex.h>

int
main()
{
	int x;
	struct timex *buffp = (struct timex *) -1;

	/* Check whether we are root */
	if (geteuid() != 0) {
		fprintf(stderr, "This needs to run as root.\n");
		return(-1);
	}
	
	/* Call adjtimex(2) */
	x = adjtimex(buffp);

	return x;
}


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Xref: news.gmane.org gmane.linux.ports.parisc:24142

On Tuesday 12 December 2006 02:14, Kyle McMartin wrote:
> On Mon, Dec 11, 2006 at 11:38:13PM +0100, Helge Deller wrote:
> > Maybe someone has an idea ?
> > 
> > The "adjtimex02" test from the Linux Test Project (http://ltp.sf.net) seems to pass all test, but triggers a kernel BUG in mm/mmap.c:1990 when exiting.
> > strace is attached below.
> 
> iirc this only bites on 32bit kernels.
> 
> This is what Jeff is referring to:
> /*
>  * Testcase reduced from ltp, adjtimex02
>  *
>  * 1) adjtimex(2) fails with errno set to EFAULT if buf does
>  *	   not point to writable memory
>  */
> [...]

The following patch is a first draft which fixes the LTP crashes. It still includes debugging info...
I assume the main problem is, that get_user() and put_user() does not do any memory region checking at all.
I think this is wrong (although the fault handler may have catched most of the wrong ones).

I know my implementation of the function access_ok() is wrong.
I tried and looked at the other arch implementations, but I didn't found an easy one. But I'm sure there is one, and hopefully someone here can point me to a better/correct implementation...?

Comments ?

Helge

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index 5575e41..cd8b657 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -488,20 +488,30 @@ handle_store_error:
 #ifdef __KERNEL__
 unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len)
 {
-	mtsp(get_kernel_space(), 1);
-	mtsp(get_user_space(), 2);
-	return pa_memcpy((void __force *)dst, src, len);
+	BUG_ON((long) len < 0);
+	if (access_ok(VERIFY_WRITE, dst, len)) {
+		mtsp(get_kernel_space(), 1);
+		mtsp(get_user_space(), 2);
+		len = pa_memcpy((void __force *)dst, src, len);
+	};
+	return len;
 }
 
 unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len)
 {
-	mtsp(get_user_space(), 1);
-	mtsp(get_kernel_space(), 2);
-	return pa_memcpy(dst, (void __force *)src, len);
+	BUG_ON((long) len < 0);
+	if (access_ok(VERIFY_READ, src, len)) {
+		mtsp(get_user_space(), 1);
+		mtsp(get_kernel_space(), 2);
+		len = pa_memcpy(dst, (void __force *)src, len);
+	} else
+		memset(dst, 0, len);
+	return len;
 }
 
 unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len)
 {
+	BUG_ON((long) len < 0);
 	mtsp(get_user_space(), 1);
 	mtsp(get_user_space(), 2);
 	return pa_memcpy((void __force *)dst, (void __force *)src, len);
diff --git a/include/asm-parisc/uaccess.h b/include/asm-parisc/uaccess.h
index d973e8b..b265d2b 100644
--- a/include/asm-parisc/uaccess.h
+++ b/include/asm-parisc/uaccess.h
@@ -8,6 +8,7 @@
 #include <asm/page.h>
 #include <asm/system.h>
 #include <asm/cache.h>
+#include <asm/io.h>
 #include <asm-generic/uaccess.h>
 
 #define VERIFY_READ 0
@@ -37,23 +38,30 @@ extern int __put_user_bad(void);
 static inline long access_ok(int type, const void __user * addr,
 		unsigned long size)
 {
-	return 1;
+	unsigned long a = (unsigned long __force) addr;
+	long ok;
+	ok = (a < F_EXTEND(0xfff00000));
+	if (unlikely(!ok)) {
+		printk(KERN_ERR "%s: addr=%p len=%lx \n", __FUNCTION__, addr, size);
+		show_stack(NULL,NULL);
+	}
+	return (ok);
 }
 
-#define put_user __put_user
-#define get_user __get_user
 
-#if BITS_PER_LONG == 32
+#if !defined(__LP64__)
 #define LDD_KERNEL(ptr)		__get_kernel_bad();
 #define LDD_USER(ptr)		__get_user_bad();
 #define STD_KERNEL(x, ptr)	__put_kernel_asm64(x,ptr)
 #define STD_USER(x, ptr)	__put_user_asm64(x,ptr)
+#define WORD_DWORD		" .word "
 #else
-#define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr)
-#define LDD_USER(ptr) __get_user_asm("ldd",ptr)
-#define STD_KERNEL(x, ptr) __put_kernel_asm("std",x,ptr)
-#define STD_USER(x, ptr) __put_user_asm("std",x,ptr)
-#endif
+#define LDD_KERNEL(ptr)		__get_kernel_asm("ldd",ptr)
+#define LDD_USER(ptr)		__get_user_asm("ldd",ptr)
+#define STD_KERNEL(x, ptr)	__put_kernel_asm("std",x,ptr)
+#define STD_USER(x, ptr)	__put_user_asm("std",x,ptr)
+#define WORD_DWORD		" .dword "
+#endif /* !__LP64__ */
 
 /*
  * The exception table contains two values: the first is an address
@@ -104,11 +112,10 @@ struct exception_data {
 	__gu_err;                                       \
 })
 
-#ifdef __LP64__
 #define __get_kernel_asm(ldx,ptr)                       \
 	__asm__("\n1:\t" ldx "\t0(%2),%0\n"             \
 		"\t.section __ex_table,\"aw\"\n"        \
-		"\t.dword\t1b,fixup_get_user_skip_1\n"	\
+		"\t" WORD_DWORD "\t1b,fixup_get_user_skip_1\n"	\
 		"\t.previous"                          	\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err)		\
@@ -117,30 +124,12 @@ struct exception_data {
 #define __get_user_asm(ldx,ptr)                         \
 	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
 		"\t.section __ex_table,\"aw\"\n"	\
-		"\t.dword\t1b,fixup_get_user_skip_1\n"	\
+		"\t" WORD_DWORD "\t1b,fixup_get_user_skip_1\n"	\
 		"\t.previous"				\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err)		\
 		: "r1");
-#else
-#define __get_kernel_asm(ldx,ptr)                       \
-	__asm__("\n1:\t" ldx "\t0(%2),%0\n"             \
-		"\t.section __ex_table,\"aw\"\n"        \
-		"\t.word\t1b,fixup_get_user_skip_1\n"	\
-		"\t.previous"                          	\
-		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err)		\
-		: "r1");
 
-#define __get_user_asm(ldx,ptr)                         \
-	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n"       \
-		"\t.section __ex_table,\"aw\"\n"	\
-		 "\t.word\t1b,fixup_get_user_skip_1\n"	\
-		 "\t.previous"                          \
-		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err)		\
-		: "r1");
-#endif /* !__LP64__ */
 
 #define __put_user(x,ptr)                                       \
 ({								\
@@ -179,12 +168,11 @@ struct exception_data {
  * r8/r9 are already listed as err/val.
  */
 
-#ifdef __LP64__
 #define __put_kernel_asm(stx,x,ptr)                         \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%1)\n"                 \
 		"\t.section __ex_table,\"aw\"\n"            \
-		"\t.dword\t1b,fixup_put_user_skip_1\n"	    \
+		"\t" WORD_DWORD "\t1b,fixup_put_user_skip_1\n"	    \
 		"\t.previous"                               \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
@@ -194,36 +182,18 @@ struct exception_data {
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
 		"\t.section __ex_table,\"aw\"\n"            \
-		 "\t.dword\t1b,fixup_put_user_skip_1\n"	    \
-		 "\t.previous"                              \
-		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
-		: "r1")
-#else
-#define __put_kernel_asm(stx,x,ptr)                         \
-	__asm__ __volatile__ (                              \
-		"\n1:\t" stx "\t%2,0(%1)\n"                 \
-		"\t.section __ex_table,\"aw\"\n"            \
-		 "\t.word\t1b,fixup_put_user_skip_1\n"	    \
+		 "\t" WORD_DWORD "\t1b,fixup_put_user_skip_1\n"	    \
 		 "\t.previous"                              \
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
 		: "r1")
 
-#define __put_user_asm(stx,x,ptr)                           \
-	__asm__ __volatile__ (                              \
-		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n"           \
-		"\t.section __ex_table,\"aw\"\n"            \
-		 "\t.word\t1b,fixup_put_user_skip_1\n"      \
-		 "\t.previous"                              \
-		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
-		: "r1")
+#if !defined(__LP64__)
 
-#define __put_kernel_asm64(__val,ptr) do {		    	    \
-	u64 __val64 = (u64)(__val);				    \
-	u32 hi = (__val64) >> 32;					    \
-	u32 lo = (__val64) & 0xffffffff;				    \
+#define __put_kernel_asm64(__val,ptr) do {	    	    \
+	u64 __val64 = (u64)(__val);			    \
+	u32 hi = (__val64) >> 32;			    \
+	u32 lo = (__val64) & 0xffffffff;		    \
 	__asm__ __volatile__ (				    \
 		"\n1:\tstw %2,0(%1)\n"			    \
 		"\n2:\tstw %3,4(%1)\n"			    \
@@ -255,6 +225,26 @@ struct exception_data {
 #endif /* !__LP64__ */
 
 
+/* Uh, these should become the main single-value transfer routines..
+ * They automatically use the right size if we just have the right
+ * pointer type..
+ *
+ * This gets kind of ugly. We want to return _two_ values in "get_user()"
+ * and yet we don't want to do any pointers, because that is too much
+ * of a performance impact. Thus we have a few rather ugly macros here,
+ * and hide all the ugliness from the user.
+ */
+#define put_user(x,ptr) ({				\
+	__chk_user_ptr(ptr);				\
+	likely(access_ok(0,ptr,sizeof(*(ptr)))) ?	\
+	__put_user(x,ptr) : -EFAULT; })
+
+#define get_user(x,ptr) ({				\
+	__chk_user_ptr(ptr);				\
+	likely(access_ok(0,ptr,sizeof(*(ptr)))) ?	\
+	__get_user(x,ptr) : ({ x=0; -EFAULT;});  })
+
+
 /*
  * Complex access routines -- external declarations
  */
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Subject: [parisc-linux] killing a set of user processes causes system reboot
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After a GCC build and check, I sometimes see some sleeping processes
that didn't terminate:

dave@hiauly6:~/gnu/gcc-4.2/objdir$ ps -ef|grep dave
dave      2496     1  0 12:04 ?        00:00:00 /home/dave/gnu/gcc-4.2/objdir/hppa-linux/libjava/testsuite/Process_3.exe
dave      2497     1  0 12:04 ?        00:00:00 /home/dave/gnu/gcc-4.2/objdir/hppa-linux/libjava/testsuite/Process_3.exe
dave      2498     1 39 12:04 ?        01:59:20 /home/dave/gnu/gcc-4.2/objdir/hppa-linux/libjava/testsuite/Process_3.exe
dave      2873     1  0 12:09 ?        00:00:00 /home/dave/gnu/gcc-4.2/objdir/hppa-linux/libjava/testsuite/Process_3.exe
dave      2874     1  0 12:09 ?        00:00:00 /home/dave/gnu/gcc-4.2/objdir/hppa-linux/libjava/testsuite/Process_3.exe
dave      2875     1 39 12:09 ?        01:56:30 /home/dave/gnu/gcc-4.2/objdir/hppa-linux/libjava/testsuite/Process_3.exe

If I kill them, the system reboots with no messages as to why:

root@hiauly6:/home/dave/gnu/gcc-4.2/objdir# kill -9 2496 2497 2498 2873 2874 2875

I had strace attached to one of the processes but it gave no info:
root@hiauly6:/home/dave# strace -p 2875
Process 2875 attached - interrupt to quit

I've seen this with 32-bit c3k kernel versions 2.6.18-rc7-pa1
and 2.6.19-g211c7899-dirty.

Thoughts?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thursday 14 December 2006 07:52, Grant Grundler wrote:
> On Wed, Dec 13, 2006 at 03:48:58PM -0500, John David Anglin wrote:
> > I agree.  As one who receives a lot of spam, I know the amount
> > of spam will grow and overwhelm the content if the list is left
> > open without antivirus and spam protection.  This may cause
> > spam filters to reject all messages from the list.
> 
> Any objection to moving the list to a different service
> that can provide spam protection and host the list?
> 
> I've created parisc-linux on google (just to reserve the name)
> but want some more comments on the basic premise that we should
> migrate the service first.

I second any step which reduces the spam.
Of course I would prefer keeping our own list server (with spam filtering) on parisc-linux.org, but if you think it's less work to host it on some other service I'll fine with that as well.

Helge
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On Thu, Dec 14, 2006 at 09:22:36AM +0100, Helge Deller wrote:
> 
> I second any step which reduces the spam.
> Of course I would prefer keeping our own list server (with spam filtering) on parisc-linux.org, but if you think it's less work to host it on some other service I'll fine with that as well.
> 

The problem is, it's *not* hosted on parisc-linux.org (aka palinux.)
lists.parisc-linux.org is hosted on free.linux.hp.com which is a hp only
machine... So me (the list admin) can do practically nothing to fix the spam
problem.

Cheers,
	Kyle



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Subject: Re: [parisc-linux] killing a set of user processes causes system
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> Yes. We talked about this before. You have to set up a serial console
> to your C3K, and issue a SYSRQ-T to show where the process is stuck in
> the kernel.

I know but that's a problem.  Can't capture enough info to graphics
console.  Don't have the right cable for a serial console, so I would
probably have to build it.  The machine's downtown and I haven't been
driving for the last two weeks.  Before that, Luxcom was sucking up
most of my time.

I've now using ethernet consoles for the servers but that's not an
option for the c3k.  Really, it would be great if it were possible
to do a SYSRQ-T over a standard ssh link.

The reason I haven't been driving is I had an eye operation two weeks
ago to correct a tear in my retina.  Not much warning, just an increase
in the number of floaters in the eye.  So, I booked an eye appointment.
The doctor saw the problem and referred me to another doctor in his
clinic who specializes in retina problems.  He looked at me and referred
me to a doctor at the General who specializes in surgery.  Went in the
same morning to the General and they did the first stage of the procedure
(laser welding + gas bubble to hold the retina in place and to dry out
fluid behind it).

Apparently, if the tear had got much larger, I would have had
to undergo major surgery.  There's no option since the tear would
have progressively got larger resulting in blindness in the eye.  This
problem apparently happens to about 1 in 10000 around 60.  So, far
the results of the surgery seem good but can't be certain until the
gas bubble disappears.

> FYI I've been running gcc builds on my c3k to reproduce this, but I
> haven't seen anything like this.

Java testsuite on head.  I think the binutils testsuite still has
problems when it is run when the machine is under load.

> Sorry to everyone who thinks I fell off the surface of the earth...
> it's true. I'm back on my thesis writing schedule, which means hours
> in the evenings are gone :(
> 
> I have a defense date in March! :)

Hey, spring graduation!  Good luck.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] killing a set of user processes causes system
Date: Thu, 14 Dec 2006 12:22:53 -0700
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Thu, Dec 14, 2006 at 02:14:28PM -0500, John David Anglin wrote:
> > Yes. We talked about this before. You have to set up a serial console
> > to your C3K, and issue a SYSRQ-T to show where the process is stuck in
> > the kernel.
> 
> I know but that's a problem.  Can't capture enough info to graphics
> console.  Don't have the right cable for a serial console, so I would
> probably have to build it.  The machine's downtown and I haven't been
> driving for the last two weeks.  Before that, Luxcom was sucking up
> most of my time.

I have a bunch of null-modem cables; you can borrow one if you like.
Heck, if you give me directions (and sort out access permissions),
I can go and install it for you.

> I've now using ethernet consoles for the servers but that's not an
> option for the c3k.  Really, it would be great if it were possible
> to do a SYSRQ-T over a standard ssh link.

Ah, /proc/sysrq-trigger is your friend here.

Best of luck with your eye problems!

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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] killing a set of user processes causes system
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To: carlos@systemhalted.org (Carlos O'Donell)
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> FYI I've been running gcc builds on my c3k to reproduce this, but I
> haven't seen anything like this.

A little more info.

I'm seeing this almost every time with GCC 4.2.0 branch using
vmlinux-2.6.18-rc7-pa1 or vmlinux-2.6.19-g211c7899-dirty.  The
kernels are 32-bit with the default c3000 config.  It's happened
in the last two builds and checks running the libjava testsuite.
The tests timeout, so I would think the dejagnu/tcl framework
would have tried to kill them when the timeout occured.

Within a group of processes that are stuck, I can kill all but one
without causing a system reboot.  The processes appear stuck in the
kernel.  I don't see any activity with strace.

I often see this with the Process_3.java test.  For example,
http://gcc.gnu.org/ml/gcc-testresults/2006-12/msg00637.html

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

// Create a process and pipe data through it.  waitFor() the process
// in a different thread than the one that created it.
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintStream;


public class Process_3 implements Runnable
{
  Process p;

  public void run()
  {
    try
      {
	Runtime r = Runtime.getRuntime();
	String[] a = { "sed", "-e", "s/Hello/Goodbye/" };
	synchronized (this)
	  {
	    p = r.exec(a);
	    this.notifyAll();
	  }
	OutputStream os = p.getOutputStream();
	PrintStream ps = new PrintStream(os);
	ps.println("Hello World");
	ps.close();
      }
    catch (Exception ex)
      {
	System.out.println(ex.toString());
        System.exit(1);
      }
  }

  public static void main(String[] args)
  {
    try
      {
	Process_3 p3 = new Process_3();
	Thread t = new Thread(p3);
	t.start();
	synchronized (p3)
	  {
	    while (p3.p == null)
	      p3.wait();
	  }

	InputStream is = p3.p.getInputStream();
	InputStreamReader isr = new InputStreamReader(is);
	BufferedReader br = new BufferedReader(isr);
	String result = br.readLine();
	if (! "Goodbye World".equals(result))
	  {
	    System.out.println("bad 1");
	    return;
	  }
	result = br.readLine();
	if (result != null)
	  {
	    System.out.println("bad 2");
	    return;
	  }
	int c = p3.p.waitFor();
	System.out.println(c == 0 ? "ok" : "bad 3");
      }
    catch (Exception ex)
      {
	System.out.println(ex.toString());
      }
  }
}
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On Saturday 16 December 2006 18:36, John David Anglin wrote:
> > FYI I've been running gcc builds on my c3k to reproduce this, but I
> > haven't seen anything like this.
> 
> A little more info.
> 
> I'm seeing this almost every time with GCC 4.2.0 branch using
> vmlinux-2.6.18-rc7-pa1 or vmlinux-2.6.19-g211c7899-dirty.  The
> kernels are 32-bit with the default c3000 config.  It's happened
> in the last two builds and checks running the libjava testsuite.
> The tests timeout, so I would think the dejagnu/tcl framework
> would have tried to kill them when the timeout occured.
> 
> Within a group of processes that are stuck, I can kill all but one
> without causing a system reboot.  The processes appear stuck in the
> kernel.  I don't see any activity with strace.
> 
> I often see this with the Process_3.java test.  For example,
> http://gcc.gnu.org/ml/gcc-testresults/2006-12/msg00637.html

Hi Dave,

does it happen on 64bit kernel as well ?
If not, maybe you could try my (ugly & temporary) kernel patch from http://lists.parisc-linux.org/pipermail/parisc-linux/2006-December/030967.html ?

Helge
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> does it happen on 64bit kernel as well ?

No, just 32-bit.

> If not, maybe you could try my (ugly & temporary) kernel patch from http://lists.parisc-linux.org/pipermail/parisc-linux/2006-December/030967.html ?

I'll give it a try.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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> > If not, maybe you could try my (ugly & temporary) kernel patch from http://lists.parisc-linux.org/pipermail/parisc-linux/2006-December/030967.html ?
> 
> I'll give it a try.

I get a bunch of messages like:
WARNING: "show_stack" [net/ipv6/ipv6.ko] undefined!

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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On Saturday 16 December 2006 22:10, John David Anglin wrote:
> > > If not, maybe you could try my (ugly & temporary) kernel patch from http://lists.parisc-linux.org/pipermail/parisc-linux/2006-December/030967.html ?
> > 
> > I'll give it a try.
> 
> I get a bunch of messages like:
> WARNING: "show_stack" [net/ipv6/ipv6.ko] undefined!

disable ipv6 for now... The problem is show_stack() in access_ok().
I don't use modules atm.

Helge
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Xref: news.gmane.org gmane.linux.ports.parisc:24153

On Saturday 16 December 2006 22:17, Helge Deller wrote:
> On Saturday 16 December 2006 22:10, John David Anglin wrote:
> > > > If not, maybe you could try my (ugly & temporary) kernel patch from http://lists.parisc-linux.org/pipermail/parisc-linux/2006-December/030967.html ?
> > > 
> > > I'll give it a try.
> > 
> > I get a bunch of messages like:
> > WARNING: "show_stack" [net/ipv6/ipv6.ko] undefined!
> 
> disable ipv6 for now... The problem is show_stack() in access_ok().
> I don't use modules atm.

this is an updated patch, where only the absolute necessary pieces were changed.
It applies to current git tree...

Helge

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index 5575e41..72a873d 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -56,6 +56,7 @@
 #include <linux/module.h>
 #include <linux/compiler.h>
 #include <asm/uaccess.h>
+#include <asm/io.h>
 #define s_space "%%sr1"
 #define d_space "%%sr2"
 #else
@@ -488,23 +489,37 @@ handle_store_error:
 #ifdef __KERNEL__
 unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len)
 {
-	mtsp(get_kernel_space(), 1);
-	mtsp(get_user_space(), 2);
-	return pa_memcpy((void __force *)dst, src, len);
+	BUG_ON((long) len < 0);
+	if (access_ok(VERIFY_WRITE, dst, len)) {
+		mtsp(get_kernel_space(), 1);
+		mtsp(get_user_space(), 2);
+		len = pa_memcpy((void __force *)dst, src, len);
+	};
+	return len;
 }
 
 unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len)
 {
-	mtsp(get_user_space(), 1);
-	mtsp(get_kernel_space(), 2);
-	return pa_memcpy(dst, (void __force *)src, len);
+	BUG_ON((long) len < 0);
+	if (access_ok(VERIFY_READ, src, len)) {
+		mtsp(get_user_space(), 1);
+		mtsp(get_kernel_space(), 2);
+		len = pa_memcpy(dst, (void __force *)src, len);
+	} else
+		memset(dst, 0, len);
+	return len;
 }
 
 unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len)
 {
-	mtsp(get_user_space(), 1);
-	mtsp(get_user_space(), 2);
-	return pa_memcpy((void __force *)dst, (void __force *)src, len);
+	BUG_ON((long) len < 0);
+        if (likely(access_ok(VERIFY_READ, src, len) &&
+            access_ok(VERIFY_WRITE, dst, len))) {
+		mtsp(get_user_space(), 1);
+		mtsp(get_user_space(), 2);
+		len = pa_memcpy((void __force *)dst, (void __force *)src, len);
+	}
+	return len;
 }
 
 
@@ -516,6 +531,24 @@ void * memcpy(void * dst,const void *src
 	return dst;
 }
 
+long access_ok(int type, const void __user * addr, unsigned long size)
+{
+	unsigned long a = (unsigned long __force) addr;
+	long ok;
+
+	if (segment_eq(get_fs(),KERNEL_DS))
+		ok = 1;
+	else
+		ok = (a < F_EXTEND(0xfff00000));
+	if (unlikely(!ok)) {
+		printk(KERN_ERR "function %s() FAILED for addr=%p len=%lx\n", __FUNCTION__, addr, size);
+		show_stack(NULL,NULL);
+	}
+	return (ok);
+}
+EXPORT_SYMBOL(access_ok);
+
+
 EXPORT_SYMBOL(copy_to_user);
 EXPORT_SYMBOL(copy_from_user);
 EXPORT_SYMBOL(copy_in_user);
diff --git a/include/asm-parisc/uaccess.h b/include/asm-parisc/uaccess.h
index 2e87e82..3dbac23 100644
--- a/include/asm-parisc/uaccess.h
+++ b/include/asm-parisc/uaccess.h
@@ -33,14 +33,7 @@ extern int __get_user_bad(void);
 extern int __put_kernel_bad(void);
 extern int __put_user_bad(void);
 
-static inline long access_ok(int type, const void __user * addr,
-		unsigned long size)
-{
-	return 1;
-}
-
-#define put_user __put_user
-#define get_user __get_user
+long access_ok(int type, const void __user * addr, unsigned long size);
 
 #if BITS_PER_LONG == 32
 #define LDD_KERNEL(ptr)		__get_kernel_bad();
@@ -254,6 +247,21 @@ struct exception_data {
 #endif /* !__LP64__ */
 
 
+/* Uh, these should become the main single-value transfer routines..
+ * They automatically use the right size if we just have the right
+ * pointer type..
+ */
+#define put_user(x,ptr) ({				\
+	__chk_user_ptr(ptr);				\
+	likely(access_ok(0,ptr,sizeof(*(ptr)))) ?	\
+	 __put_user(x,ptr) : -EFAULT; })
+
+#define get_user(x,ptr) ({				\
+	__chk_user_ptr(ptr);				\
+	likely(access_ok(0,ptr,sizeof(*(ptr)))) ?	\
+	__get_user(x,ptr) : ({ x=0; -EFAULT;});  })
+
+
 /*
  * Complex access routines -- external declarations
  */
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] killing a set of user processes causes system
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> this is an updated patch, where only the absolute necessary pieces were changed.
> It applies to current git tree...

2.6.20-rc1-gd13bc210-dirty boots with the patch but su/pam authentication
is somehow broken for root.  I used the defaults for all config updates.
The only bad things that I see in the log files is some unaligned accesses
by hald.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] V-Class server.
Date: Mon, 18 Dec 2006 10:16:01 -0700
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To: Chuck Hall <chall@bcrl.stcloudstate.edu>
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On Mon, Dec 18, 2006 at 09:48:14AM -0600, Chuck Hall wrote:
> Greetings,
> 
> After reading the the parisc-linux website I noticed that the V-class 
> machines could be supported if someone had access to one.  I have access 
> to one, with just one problem no teststation software to get it booted.

I'm sure someone at HP could fix that for you.
Have you tried asking HP?

This web page suggested you only need the latest 10.20 HPUX :
	http://docs.hp.com/en/A3725-96005/ch03s01.html

and it will install the "teststation" software in "/spp".

And make sure the V-class can boot HPUX and pass diagnostic
tests before trying to run parisc-linux.

> If I had the software I would be willing to have the machine accessable 
> for development work for the purpose of getting Linux on it and anything 
> else you could think of.  I might even be able to get a few cs grad 
> students to work on it, they don't seem to be doing anything useful 
> right now.

The grad students or the machines? ;)
(I'm assuming you meant the the latter)

I'd be willing to consult 1-2h per week if some CS students are
interested in working on it. My advice is get them a bit drunk
before proposing the idea. At least that worked to get the parisc-linux
port off the ground too. :)

> I do have a question about the V-class and Linux.  What still needs to 
> be done?  The parisc-linux website states the main problem as being the 
> PCI bus adapter.

Yes. I wrote that bit.

The V-class has a slightly more restrictive definition of "Cache Coherent DMA"
than the other PA-RISC machines which have an IOMMU (C/D/R/K/L/N-class,
superdome and it's derivatives).  Device drivers and DMA Mapping support
need to do one or two more things to guarantee DMA remains cache coherent.
ISTR those rules are described in the public EPIC (Excalibur PCI Interface
Chip) documentation. I don't remember anymore what the issues were.
Probably something around IRQ/DMA races and DMA start/stop races.

Use http://docs.hp.com/cgi-bin/search and enter "EPIC" to get
references to the various bits of V-class docs.

Note that to make V-class useful, one would need to verify at least
2 drivers comply with those rules: tulip (100BT) and sym53cx88_2 (SCSI).
Oh, Serial/LAN console is also required but I don't know
if that's a new driver or firmware handles all of that.

Support for the LAN/Firmware debugger would be cool too.
Additional drivers that might be useful are tg3 and acenic (1000BT).

EPIC provides 5 key things needed by any system:
1) DMA IOMMU - remaps host phys memory for 32-bit PCI devices.
   The IOMMU does this with "channels" that are directional (read-only
   or write-only).
   The IOMMU is very different than any other IOMMU used on parisc.
   I recall "dma_sync" instruction was a substantial performance
   bottleneck and HPUX code had to be restructured to avoid using
   it for (by?) some device drivers.

2) DMA Coherent RAM: bi-directional DMA can _only_ be handled here.
   It's a very limited, on-chip resource. ISTR 256 KB.
   Every driver needs some coherent RAM - usually not more
   than 16-32KB. IIRC, Tachyon (Fiber Channel) was the only exception
   and it basically exhausted the pool. IIRC, they only allowed
   one FC card per EPIC.
   This is very different because DMA can be bi-directional to any host
   RAM on most systems. The X-bar Memory architecture makes cache coherent,
   bi-directional DMA not feasible.

3) MMIO and IO Port space: routes transactions to proper PCI bus.
   Probably don't have to do more than advertise the routing.

4) PCI Configuration space: no surprise here either. Most of the PCI bus walk
   code could be copied from drivers/parisc/dino.c driver.

5) PCI IRQ handling: Normal PCI Int A-D lines are supported.
   Dino IRQ code could be "leveraged" here too.

Before kicking this off, I'd see if someone at HP who worked on
HPUX V-class firmware or OS support would be willing to "mentor" this.
It would be an excellent learning opportunity for CS grad students
and this HP person could fill in the gaps where public documentation
isn't clear or just hard to find.

> Knowing what else needs to be done would help in 
> judging the difficulty in completing the project.

Might need to add some glue to "firmware device discovery".
Ie how we query firmware for where all the motherboard devices 
are. That's probably the first step if existing code doesn't
handle it.

I'm not sure how much work is needed for reasonable CPU Cache utilization.
parisc-linux currently isn't very efficiently using CPU Cache (flushing
too often).  My guess is V-class is going to require much better utilization
since pulling in cache misses across the X-bar will be expensive.

Someone might also have to count how frequently "sync" and "dmasync" ops
are being hit.

IIRC, V-class X-bar architecture has fairly high memory latency, but
_lots_ of memory Bandwidth. Something like 20GB/s over the X-bar.
My guess is it's still useful for highly parallel (MPI?) applications.

good luck!
grant
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From: Chuck Hall <chall@bcrl.stcloudstate.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] V-Class server.
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Greetings,

After reading the the parisc-linux website I noticed that the V-class 
machines could be supported if someone had access to one.  I have access 
to one, with just one problem no teststation software to get it booted.

If I had the software I would be willing to have the machine accessable 
for development work for the purpose of getting Linux on it and anything 
else you could think of.  I might even be able to get a few cs grad 
students to work on it, they don't seem to be doing anything useful 
right now.


I do have a question about the V-class and Linux.  What still needs to 
be done?  The parisc-linux website states the main problem as being the 
PCI bus adapter.  Knowing what else needs to be done would help in 
judging the difficulty in completing the project.

Have Fun!
Chuck Hall
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] V-Class server.
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On Mon, Dec 18, 2006 at 09:48:14AM -0600, Chuck Hall wrote:
> After reading the the parisc-linux website I noticed that the V-class 
> machines could be supported if someone had access to one.  I have access 
> to one, with just one problem no teststation software to get it booted.

Hi Chuck,

I don't know what needs to be done to get a V-class to boot, but I know
there are several people on the list with prior experience of V-class,
and I hope they'll be able to help you.

> If I had the software I would be willing to have the machine accessable 
> for development work for the purpose of getting Linux on it and anything 
> else you could think of.  I might even be able to get a few cs grad 
> students to work on it, they don't seem to be doing anything useful 
> right now.

That would be marvellous.

> I do have a question about the V-class and Linux.  What still needs to 
> be done?  The parisc-linux website states the main problem as being the 
> PCI bus adapter.  Knowing what else needs to be done would help in 
> judging the difficulty in completing the project.

I believe that is the only thing.  We can verify that (without doing the
work ;-) by booting a ramdisk-based userspace on it.  The first steps of
the Debian installer should work well for this purpose.  If it works,
then `all' we need is the PCI bus adapter.  I suspect there's also an
IOMMU (or similar) driver that needs to be written too.
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> this is an updated patch, where only the absolute necessary pieces were changed.

The patch doesn't help.  Still getting hung java processes.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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Hi Dave,

On Monday 18 December 2006 21:17, John David Anglin wrote:
> > this is an updated patch, where only the absolute necessary pieces were changed.
> 
> The patch doesn't help.  Still getting hung java processes.

I just committed the final working patch to the parisc git-tree:
http://git.parisc-linux.org/?p=linux-2.6.git;a=commitdiff;h=0590a4f2beee1d489050cb0ca035294892a46a40
The old patch didn't catched all syscalls and cases, e.g. all string-ops weren't handled.
Maybe you could git-pull and try again ?

Helge

PS: Many thanks to Willy who helped me finding the real fix!
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> The old patch didn't catched all syscalls and cases, e.g. all string-ops weren't handled.
> Maybe you could git-pull and try again ?

This is looking promising.  su works and I had a full build of GCC
last night without any hung java processes.  I still had one test
failure in the libstdc++-v3 testsuite

FAIL: 22_locale/time_get/get_date/wchar_t/4.cc execution test

which may be a kernel problem since the fail doesn't occur using
a 64-bit kernel.  The test also doesn't fail under hpux, so it's
not likely a compilation issue.  The problem is in setting a
date/time string.  Might have something to do with locale functions.

Also, X is broken again.  It seems the card is outputing at higher
scan rate than the card can handle after X starts (no problem
with penguin).  However, the rate shown in the log file seems fine:

(II) Setting vga for screen 0.
(**) FBDEV(0): Depth 8, (--) framebuffer bpp 8
(==) FBDEV(0): Default visual is PseudoColor
(==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDEV(0): hardware: stifb (video memory: 2048kB)
(II) FBDEV(0): checking modes against framebuffer device...
(II) FBDEV(0):  mode "1280x1024" ok
(II) FBDEV(0): checking modes against monitor...
(--) FBDEV(0): Virtual size is 1280x1024 (pitch 1280)
(**) FBDEV(0):  Default mode "1280x1024": 108.0 MHz (scaled from 0.0 MHz), 64.0
kHz, 60.0 Hz
(II) FBDEV(0): Modeline "1280x1024"  108.00  1280 1328 1440 1688  1024 1025 1028
 1066 +hsync +vsync

The monitor runs just fine at 64.0 kHz, 60 Hz.  The monitor says the
output mode of the VIS EG is about 90 kHz, 75 Hz.

Don't think this has anything to do with your patch since older kernels
have same problem.  However, thought you might have a suggestion as
to what's wrong.  Running unstable.

Thanks,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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Hi Dave,

On Wednesday 20 December 2006 16:06, John David Anglin wrote:
> > The old patch didn't catched all syscalls and cases, e.g. all string-ops weren't handled.
> > Maybe you could git-pull and try again ?
> 
> This is looking promising.  su works and I had a full build of GCC
> last night without any hung java processes.  I still had one test
> failure in the libstdc++-v3 testsuite

That's great !

> FAIL: 22_locale/time_get/get_date/wchar_t/4.cc execution test
> 
> which may be a kernel problem since the fail doesn't occur using
> a 64-bit kernel.  The test also doesn't fail under hpux, so it's
> not likely a compilation issue.  The problem is in setting a
> date/time string.  Might have something to do with locale functions.

Can you provide an strace ?
 
> Also, X is broken again.  It seems the card is outputing at higher
> scan rate than the card can handle after X starts (no problem
> with penguin).  However, the rate shown in the log file seems fine:
> 
> (II) Setting vga for screen 0.
> (**) FBDEV(0): Depth 8, (--) framebuffer bpp 8
> (==) FBDEV(0): Default visual is PseudoColor
> (==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
> (II) FBDEV(0): hardware: stifb (video memory: 2048kB)
> (II) FBDEV(0): checking modes against framebuffer device...
> (II) FBDEV(0):  mode "1280x1024" ok
> (II) FBDEV(0): checking modes against monitor...
> (--) FBDEV(0): Virtual size is 1280x1024 (pitch 1280)
> (**) FBDEV(0):  Default mode "1280x1024": 108.0 MHz (scaled from 0.0 MHz), 64.0
> kHz, 60.0 Hz
> (II) FBDEV(0): Modeline "1280x1024"  108.00  1280 1328 1440 1688  1024 1025 1028
>  1066 +hsync +vsync
> 
> The monitor runs just fine at 64.0 kHz, 60 Hz.  The monitor says the
> output mode of the VIS EG is about 90 kHz, 75 Hz.
> 
> Don't think this has anything to do with your patch since older kernels
> have same problem.  However, thought you might have a suggestion as
> to what's wrong.  Running unstable.

That seems to be a generic problem in the Xorg FBDEV driver. I saw this problem as well.
It has nothing to do with monitor frequencies, since the FBDEV (Framebuffer device driver) can't change the monitor/graphics card frequencies anyway.
So I assume it's more a problem of FBDEV picking the wrong line length (which is always 2048 bytes).

I'll look into this when I find time, but compiling X is not my favorite task :-)

Helge
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Subject: Re: [parisc-linux] killing a set of user processes causes system
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Xref: news.gmane.org gmane.linux.ports.parisc:24162

> > FAIL: 22_locale/time_get/get_date/wchar_t/4.cc execution test
> > 
> > which may be a kernel problem since the fail doesn't occur using
> > a 64-bit kernel.  The test also doesn't fail under hpux, so it's
> > not likely a compilation issue.  The problem is in setting a
> > date/time string.  Might have something to do with locale functions.
> 
> Can you provide an strace ?

Don't see anything that's obvious.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

execve("./4.xg", ["./4.xg"], [/* 18 vars */]) = 0
newuname({sys="Linux", node="hiauly6", ...}) = 0
brk(0)                                  = 0x13000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40000000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("PARISC/libstdc++.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("libstdc++.so.6", O_RDONLY)        = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/gcc/PARISC/libstdc++.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/gcc/PARISC", 0xc01ce5c8) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/gcc/libstdc++.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/gcc", {st_mode=0, st_size=4303557231594, ...}) = 0
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/./libstdc++-v3/src/.libs/PARISC/libstdc++.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/./libstdc++-v3/src/.libs/PARISC", 0xc01ce5c8) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/./libstdc++-v3/src/.libs/libstdc++.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\4.\360"..., 512) = 512
fstat64(3, {st_mode=0, st_size=4303557231594, ...}) = 0
mmap(NULL, 1081212, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x402a3000
mmap(0x4039e000, 32768, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xfa000) = 0x4039e000
mmap(0x403a6000, 20348, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x403a6000
close(3)                                = 0
open("PARISC/libm.so.6", O_RDONLY)      = -1 ENOENT (No such file or directory)
open("libm.so.6", O_RDONLY)             = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/gcc/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/./libstdc++-v3/src/.libs/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libstdc++-v3/.libs/PARISC/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libstdc++-v3/.libs/PARISC", 0xc01ce608) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libstdc++-v3/.libs/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libstdc++-v3/.libs", 0xc01ce608) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libmudflap/.libs/PARISC/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libmudflap/.libs/PARISC", 0xc01ce608) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libmudflap/.libs/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libmudflap/.libs", {st_mode=0, st_size=4303557231594, ...}) = 0
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libssp/.libs/PARISC/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libssp/.libs/PARISC", 0xc01ce608) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libssp/.libs/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libssp/.libs", {st_mode=0, st_size=4303557231594, ...}) = 0
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libgomp/.libs/PARISC/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libgomp/.libs/PARISC", 0xc01ce608) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libgomp/.libs/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libgomp/.libs", {st_mode=0, st_size=4303557231594, ...}) = 0
open("/home/dave/gnu/gcc-4.2/objdir/./gcc/PARISC/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/./gcc/PARISC", 0xc01ce608) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/./gcc/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/./gcc", {st_mode=0, st_size=4303557231594, ...}) = 0
open("/home/dave/gnu/gcc-4.2/objdir/./prev-gcc/PARISC/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/./prev-gcc/PARISC", 0xc01ce608) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/./prev-gcc/libm.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/home/dave/gnu/gcc-4.2/objdir/./prev-gcc", {st_mode=0, st_size=4303557231594, ...}) = 0
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 83644, PROT_READ, MAP_PRIVATE, 3, 0) = 0x403da000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libm.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\226"..., 512) = 512
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40001000
mmap(NULL, 573884, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40031000
mprotect(0x400ab000, 74172, PROT_NONE)  = 0
mmap(0x400ba000, 16384, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x79000) = 0x400ba000
close(3)                                = 0
open("PARISC/libgcc_s.so.4", O_RDONLY)  = -1 ENOENT (No such file or directory)
open("libgcc_s.so.4", O_RDONLY)         = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/gcc/libgcc_s.so.4", O_RDONLY) = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\27"..., 512) = 512
fstat64(3, {st_mode=0, st_size=4303557231594, ...}) = 0
mmap(NULL, 64160, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x406ae000
mmap(0x406bd000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xe000) = 0x406bd000
close(3)                                = 0
open("PARISC/libc.so.6", O_RDONLY)      = -1 ENOENT (No such file or directory)
open("libc.so.6", O_RDONLY)             = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/gcc/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/./libstdc++-v3/src/.libs/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libmudflap/.libs/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libssp/.libs/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/hppa-linux/libgomp/.libs/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/./gcc/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/home/dave/gnu/gcc-4.2/objdir/./prev-gcc/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\1\364"..., 512) = 512
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 1364696, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40a63000
mprotect(0x40b93000, 119512, PROT_NONE) = 0
mmap(0x40ba2000, 53248, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x12f000) = 0x40ba2000
mmap(0x40baf000, 4824, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40baf000
close(3)                                = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40002000
mmap(NULL, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40004000
munmap(0x403da000, 83644)               = 0
brk(0)                                  = 0x13000
brk(0x34000)                            = 0x34000
open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap2(NULL, 2097152, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40dd5000
mmap2(NULL, 835584, PROT_READ, MAP_PRIVATE, 3, 0x3116) = 0x405d5000
close(3)                                = 0
open("/usr/lib/gconv/gconv-modules.cache", O_RDONLY) = 3
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 21568, PROT_READ, MAP_SHARED, 3, 0) = 0x40752000
close(3)                                = 0
open("/usr/lib/gconv/BIG5.so", O_RDONLY) = 3
read(3, "\177ELF\1\2\1\3\0\0\0\0\0\0\0\0\0\3\0\17\0\0\0\1\0\0\10"..., 512) = 512
fstat64(3, {st_mode=0, st_size=0, ...}) = 0
mmap(NULL, 149404, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x401db000
mprotect(0x401f0000, 63388, PROT_NONE)  = 0
mmap(0x401ff000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14000) = 0x401ff000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40008000
write(2, "4.xg: /home/dave/gnu/gcc-4.2/gcc"..., 1674.xg: /home/dave/gnu/gcc-4.2/gcc/libstdc++-v3/testsuite/22_locale/time_get/get_date/wchar_t/4.cc:55: void test01(): Assertion `errorstate == ios_base::eofbit' failed.
) = 167
rt_sigprocmask(SIG_UNBLOCK, [ABRT], NULL, 8) = 0
getpid()                                = 16763
kill(16763, SIGABRT)                    = 0
--- SIGABRT (Aborted) @ 0 (0) ---
+++ killed by SIGABRT (core dumped) +++
Process 16763 detached



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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] killing a set of user processes causes system
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On Wednesday 20 December 2006 23:42, John David Anglin wrote:
> > > FAIL: 22_locale/time_get/get_date/wchar_t/4.cc execution test
> > > 
> > > which may be a kernel problem since the fail doesn't occur using
> > > a 64-bit kernel.  The test also doesn't fail under hpux, so it's
> > > not likely a compilation issue.  The problem is in setting a
> > > date/time string.  Might have something to do with locale functions.
> > 
> > Can you provide an strace ?
>     ..[many lines of strace stripped]....
> 
> Don't see anything that's obvious.

Me neither.

Helge

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Subject: [parisc-linux] [RFC] [PATCH] fix gettimeofday() on parisc to be
	monotonic
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I would like to get your feedback on the attached patch.

While testing the Linux Test Project gettimeofday02 testcase, I found that our gettimeofday() implementation is not monotonic.
I know there was much work on gettimeofday() a few monthes back, but still we have problems.
Just try this stripped-down testcase yourself:

/*
 *      based on gettimeofday02.c  from LTP
 * DESCRIPTION
 *      Check if gettimeofday is monotonous
 *
 * ALGORITHM
 *      Call gettimeofday() to get a t1 (fist value)
 *      call it again to get t2, see if t2 < t1, set t2 = t1, repeat 
 */

#include <stdio.h>
#include <sys/time.h>

int main(int ac, char **av)
{
        struct timeval tv1,tv2;

        fprintf(stderr, "Start of test....\n");
        gettimeofday(&tv1,NULL);
        while (1) {
                gettimeofday(&tv2,NULL);
                if (    (tv2.tv_usec < tv1.tv_usec) &&
                        (tv2.tv_sec <= tv1.tv_sec)
                        ) {
                        fprintf(stderr,"Time is going backwards (old %d.%d vs new %d.%d!)\n",tv1.tv_sec,tv1.tv_usec,tv2.tv_sec,tv2.tv_usec);
                        return(1);
                }
                tv1=tv2;
        }
        return 0;
}


The patch below fixes this nicely for PARISC-Linux, while it removes our own implementation and uses the existing CONFIG_TIME_INTERPOLATION framework.
AFAICS up to now it's only used by IA64 and SPARC64.

The things where I wanted to get your feedback on is, that on a 32bit HPPA Kernel we don't allow cmpxchg() with a 8-byte variable, which is used in the generic code in kernel/timer.c line 1674.
To make my implementation work, I changed some "u64" variables/struct members in the "struct time_interpolator" in include/linux/timex.h  to "cycles_t" instead.
"cycles_t" is defined in include/asm/timex.h mostly as "unsigned long", which is what the default platform width is (e.g. 64bit on 64bit platforms) and get_cycles() is exactly the input-value for the time interpolation framework.
As such I think it just makes sense to use this type as well all over the code.
For PARISC this chage gives 8bytes on HPPA64 and 4bytes on HPPA32, and so we can use the current implementation with the cmpxchg() in kernel/timer.c.

What do you think ?
Will this be acceptable by Linus/others ?
It works on my 32bit hppa.

Patch is here:

diffstat:
 arch/parisc/Kconfig       |    4 +
 arch/parisc/kernel/time.c |  151 ++++++++++------------------------------------
 include/linux/timex.h     |    8 +-
 kernel/timer.c            |   10 +--
 4 files changed, 47 insertions(+), 126 deletions(-)


diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 848a67a..e85c931 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -50,6 +50,10 @@ config GENERIC_CALIBRATE_DELAY
 	bool
 	default y
 
+config TIME_INTERPOLATION
+	bool
+	default y
+
 config TIME_LOW_RES
 	bool
 	depends on SMP
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index bad7d1e..56a246b 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -34,6 +34,27 @@
 
 static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
 
+static struct time_interpolator mfctl16_interpolator = {
+	.shift = 16,
+	.mask = 0UL-1,
+	.source = TIME_SOURCE_CPU
+};
+
+
+static int nojitter;
+
+static int __init nojitter_setup(char *str)
+{
+	nojitter = 1;
+	printk("Jitter checking for ctl16 timers disabled\n");
+	return 1;
+}
+
+__setup("nojitter", nojitter_setup);
+
+
+
+
 /*
  * We keep time on PA-RISC Linux by using the Interval Timer which is
  * a pair of registers; one is read-only and one is write-only; both
@@ -172,121 +193,6 @@ unsigned long profile_pc(struct pt_regs 
 EXPORT_SYMBOL(profile_pc);
 
 
-/*
- * Return the number of micro-seconds that elapsed since the last
- * update to wall time (aka xtime).  The xtime_lock
- * must be at least read-locked when calling this routine.
- */
-static inline unsigned long gettimeoffset (void)
-{
-#ifndef CONFIG_SMP
-	/*
-	 * FIXME: This won't work on smp because jiffies are updated by cpu 0.
-	 *    Once parisc-linux learns the cr16 difference between processors,
-	 *    this could be made to work.
-	 */
-	unsigned long now;
-	unsigned long prev_tick;
-	unsigned long next_tick;
-	unsigned long elapsed_cycles;
-	unsigned long usec;
-	unsigned long cpuid = smp_processor_id();
-	unsigned long cpt = clocktick;
-
-	next_tick = cpu_data[cpuid].it_value;
-	now = mfctl(16);	/* Read the hardware interval timer.  */
-
-	prev_tick = next_tick - cpt;
-
-	/* Assume Scenario 1: "now" is later than prev_tick.  */
-	elapsed_cycles = now - prev_tick;
-
-/* aproximate HZ with shifts. Intended math is "(elapsed/clocktick) > HZ" */
-#if HZ == 1000
-	if (elapsed_cycles > (cpt << 10) )
-#elif HZ == 250
-	if (elapsed_cycles > (cpt << 8) )
-#elif HZ == 100
-	if (elapsed_cycles > (cpt << 7) )
-#else
-#warn WTF is HZ set to anyway?
-	if (elapsed_cycles > (HZ * cpt) )
-#endif
-	{
-		/* Scenario 3: clock ticks are missing. */
-		printk (KERN_CRIT "gettimeoffset(CPU %ld): missing %ld ticks!"
-			" cycles %lX prev/now/next %lX/%lX/%lX  clock %lX\n",
-			cpuid, elapsed_cycles / cpt,
-			elapsed_cycles, prev_tick, now, next_tick, cpt);
-	}
-
-	/* FIXME: Can we improve the precision? Not with PAGE0. */
-	usec = (elapsed_cycles * 10000) / PAGE0->mem_10msec;
-	return usec;
-#else
-	return 0;
-#endif
-}
-
-void
-do_gettimeofday (struct timeval *tv)
-{
-	unsigned long flags, seq, usec, sec;
-
-	/* Hold xtime_lock and adjust timeval.  */
-	do {
-		seq = read_seqbegin_irqsave(&xtime_lock, flags);
-		usec = gettimeoffset();
-		sec = xtime.tv_sec;
-		usec += (xtime.tv_nsec / 1000);
-	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
-	/* Move adjusted usec's into sec's.  */
-	while (usec >= USEC_PER_SEC) {
-		usec -= USEC_PER_SEC;
-		++sec;
-	}
-
-	/* Return adjusted result.  */
-	tv->tv_sec = sec;
-	tv->tv_usec = usec;
-}
-
-EXPORT_SYMBOL(do_gettimeofday);
-
-int
-do_settimeofday (struct timespec *tv)
-{
-	time_t wtm_sec, sec = tv->tv_sec;
-	long wtm_nsec, nsec = tv->tv_nsec;
-
-	if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
-		return -EINVAL;
-
-	write_seqlock_irq(&xtime_lock);
-	{
-		/*
-		 * This is revolting. We need to set "xtime"
-		 * correctly. However, the value in this location is
-		 * the value at the most recent update of wall time.
-		 * Discover what correction gettimeofday would have
-		 * done, and then undo it!
-		 */
-		nsec -= gettimeoffset() * 1000;
-
-		wtm_sec  = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
-		wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
-
-		set_normalized_timespec(&xtime, sec, nsec);
-		set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
-
-		ntp_clear();
-	}
-	write_sequnlock_irq(&xtime_lock);
-	clock_was_set();
-	return 0;
-}
-EXPORT_SYMBOL(do_settimeofday);
 
 /*
  * XXX: We can do better than this.
@@ -323,13 +229,24 @@ void __init time_init(void)
 		write_seqlock_irqsave(&xtime_lock, flags);
 		xtime.tv_sec = tod_data.tod_sec;
 		xtime.tv_nsec = tod_data.tod_usec * 1000;
-		set_normalized_timespec(&wall_to_monotonic,
-		                        -xtime.tv_sec, -xtime.tv_nsec);
 		write_sequnlock_irqrestore(&xtime_lock, flags);
 	} else {
 		printk(KERN_ERR "Error reading tod clock\n");
 	        xtime.tv_sec = 0;
 		xtime.tv_nsec = 0;
 	}
+
+	mfctl16_interpolator.frequency = 100 * PAGE0->mem_10msec;
+	mfctl16_interpolator.drift = -1;
+#ifdef CONFIG_SMP
+	if (!nojitter) mfctl16_interpolator.jitter = 1;
+#endif
+	register_time_interpolator(&mfctl16_interpolator);
+
+	/*
+	 * Initialize wall_to_monotonic such that adding it to xtime will yield zero, the
+	 * tv_nsec field must be normalized (i.e., 0 <= nsec < NSEC_PER_SEC).
+	 */
+	set_normalized_timespec(&wall_to_monotonic, -xtime.tv_sec, -xtime.tv_nsec);
 }
 
diff --git a/include/linux/timex.h b/include/linux/timex.h
index db501dc..deb4369 100644
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -255,11 +255,11 @@ struct time_interpolator {
 	u8 jitter;			/* if set compensate for fluctuations */
 	u32 nsec_per_cyc;		/* set by register_time_interpolator() */
 	void *addr;			/* address of counter or function */
-	u64 mask;			/* mask the valid bits of the counter */
+	cycles_t mask;			/* mask the valid bits of the counter */
 	unsigned long offset;		/* nsec offset at last update of interpolator */
-	u64 last_counter;		/* counter value in units of the counter at last update */
-	u64 last_cycle;			/* Last timer value if TIME_SOURCE_JITTER is set */
-	u64 frequency;			/* frequency in counts/second */
+	cycles_t last_counter;		/* counter value in units of the counter at last update */
+	cycles_t last_cycle;		/* Last timer value if TIME_SOURCE_JITTER is set */
+	cycles_t frequency;		/* frequency in counts/second */
 	long drift;			/* drift in parts-per-million (or -1) */
 	unsigned long skips;		/* skips forward */
 	unsigned long ns_skipped;	/* nanoseconds skipped */
diff --git a/kernel/timer.c b/kernel/timer.c
index feddf81..08242f8 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1625,7 +1625,7 @@ struct time_interpolator *time_interpola
 static struct time_interpolator *time_interpolator_list __read_mostly;
 static DEFINE_SPINLOCK(time_interpolator_lock);
 
-static inline u64 time_interpolator_get_cycles(unsigned int src)
+static inline cycle_t time_interpolator_get_cycles(unsigned int src)
 {
 	unsigned long (*x)(void);
 
@@ -1645,14 +1645,14 @@ static inline u64 time_interpolator_get_
 	}
 }
 
-static inline u64 time_interpolator_get_counter(int writelock)
+static inline cycle_t time_interpolator_get_counter(int writelock)
 {
 	unsigned int src = time_interpolator->source;
 
 	if (time_interpolator->jitter)
 	{
-		u64 lcycle;
-		u64 now;
+		cycle_t lcycle;
+		cycle_t now;
 
 		do {
 			lcycle = time_interpolator->last_cycle;
@@ -1701,7 +1701,7 @@ unsigned long time_interpolator_get_offs
 
 void time_interpolator_update(long delta_nsec)
 {
-	u64 counter;
+	cycle_t counter;
 	unsigned long offset;
 
 	/* If there is no time interpolator set up then do nothing */
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [RFC] [PATCH] fix gettimeofday() on parisc to be
	monotonic
Date: Thu, 21 Dec 2006 05:09:09 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:24165

Sorry.... idea is correct (I think), but patch is wrong. 
kernel/timer.c still uses "u64" in my patch. It's easy to mix up "cycle_t" and "cycles_t".

Still needs more testing...

Helge

On Thu Dec 21 2006, Helge Deller wrote:
> I would like to get your feedback on the attached patch.
> 
> While testing the Linux Test Project gettimeofday02 testcase, I found that our gettimeofday() implementation is not monotonic.
> I know there was much work on gettimeofday() a few monthes back, but still we have problems.
> Just try this stripped-down testcase yourself:
> 
> /*
>  *      based on gettimeofday02.c  from LTP
>  * DESCRIPTION
>  *      Check if gettimeofday is monotonous
>  *
>  * ALGORITHM
>  *      Call gettimeofday() to get a t1 (fist value)
>  *      call it again to get t2, see if t2 < t1, set t2 = t1, repeat 
>  */
> 
> #include <stdio.h>
> #include <sys/time.h>
> 
> int main(int ac, char **av)
> {
>         struct timeval tv1,tv2;
> 
>         fprintf(stderr, "Start of test....\n");
>         gettimeofday(&tv1,NULL);
>         while (1) {
>                 gettimeofday(&tv2,NULL);
>                 if (    (tv2.tv_usec < tv1.tv_usec) &&
>                         (tv2.tv_sec <= tv1.tv_sec)
>                         ) {
>                         fprintf(stderr,"Time is going backwards (old %d.%d vs new %d.%d!)\n",tv1.tv_sec,tv1.tv_usec,tv2.tv_sec,tv2.tv_usec);
>                         return(1);
>                 }
>                 tv1=tv2;
>         }
>         return 0;
> }
> 
> 
> The patch below fixes this nicely for PARISC-Linux, while it removes our own implementation and uses the existing CONFIG_TIME_INTERPOLATION framework.
> AFAICS up to now it's only used by IA64 and SPARC64.
> 
> The things where I wanted to get your feedback on is, that on a 32bit HPPA Kernel we don't allow cmpxchg() with a 8-byte variable, which is used in the generic code in kernel/timer.c line 1674.
> To make my implementation work, I changed some "u64" variables/struct members in the "struct time_interpolator" in include/linux/timex.h  to "cycles_t" instead.
> "cycles_t" is defined in include/asm/timex.h mostly as "unsigned long", which is what the default platform width is (e.g. 64bit on 64bit platforms) and get_cycles() is exactly the input-value for the time interpolation framework.
> As such I think it just makes sense to use this type as well all over the code.
> For PARISC this chage gives 8bytes on HPPA64 and 4bytes on HPPA32, and so we can use the current implementation with the cmpxchg() in kernel/timer.c.
> 
> What do you think ?
> Will this be acceptable by Linus/others ?
> It works on my 32bit hppa.
> 
> Patch is here:
> 
> diffstat:
>  arch/parisc/Kconfig       |    4 +
>  arch/parisc/kernel/time.c |  151 ++++++++++------------------------------------
>  include/linux/timex.h     |    8 +-
>  kernel/timer.c            |   10 +--
>  4 files changed, 47 insertions(+), 126 deletions(-)
> 
> 
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index 848a67a..e85c931 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -50,6 +50,10 @@ config GENERIC_CALIBRATE_DELAY
>  	bool
>  	default y
>  
> +config TIME_INTERPOLATION
> +	bool
> +	default y
> +
>  config TIME_LOW_RES
>  	bool
>  	depends on SMP
> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
> index bad7d1e..56a246b 100644
> --- a/arch/parisc/kernel/time.c
> +++ b/arch/parisc/kernel/time.c
> @@ -34,6 +34,27 @@
>  
>  static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
>  
> +static struct time_interpolator mfctl16_interpolator = {
> +	.shift = 16,
> +	.mask = 0UL-1,
> +	.source = TIME_SOURCE_CPU
> +};
> +
> +
> +static int nojitter;
> +
> +static int __init nojitter_setup(char *str)
> +{
> +	nojitter = 1;
> +	printk("Jitter checking for ctl16 timers disabled\n");
> +	return 1;
> +}
> +
> +__setup("nojitter", nojitter_setup);
> +
> +
> +
> +
>  /*
>   * We keep time on PA-RISC Linux by using the Interval Timer which is
>   * a pair of registers; one is read-only and one is write-only; both
> @@ -172,121 +193,6 @@ unsigned long profile_pc(struct pt_regs 
>  EXPORT_SYMBOL(profile_pc);
>  
>  
> -/*
> - * Return the number of micro-seconds that elapsed since the last
> - * update to wall time (aka xtime).  The xtime_lock
> - * must be at least read-locked when calling this routine.
> - */
> -static inline unsigned long gettimeoffset (void)
> -{
> -#ifndef CONFIG_SMP
> -	/*
> -	 * FIXME: This won't work on smp because jiffies are updated by cpu 0.
> -	 *    Once parisc-linux learns the cr16 difference between processors,
> -	 *    this could be made to work.
> -	 */
> -	unsigned long now;
> -	unsigned long prev_tick;
> -	unsigned long next_tick;
> -	unsigned long elapsed_cycles;
> -	unsigned long usec;
> -	unsigned long cpuid = smp_processor_id();
> -	unsigned long cpt = clocktick;
> -
> -	next_tick = cpu_data[cpuid].it_value;
> -	now = mfctl(16);	/* Read the hardware interval timer.  */
> -
> -	prev_tick = next_tick - cpt;
> -
> -	/* Assume Scenario 1: "now" is later than prev_tick.  */
> -	elapsed_cycles = now - prev_tick;
> -
> -/* aproximate HZ with shifts. Intended math is "(elapsed/clocktick) > HZ" */
> -#if HZ == 1000
> -	if (elapsed_cycles > (cpt << 10) )
> -#elif HZ == 250
> -	if (elapsed_cycles > (cpt << 8) )
> -#elif HZ == 100
> -	if (elapsed_cycles > (cpt << 7) )
> -#else
> -#warn WTF is HZ set to anyway?
> -	if (elapsed_cycles > (HZ * cpt) )
> -#endif
> -	{
> -		/* Scenario 3: clock ticks are missing. */
> -		printk (KERN_CRIT "gettimeoffset(CPU %ld): missing %ld ticks!"
> -			" cycles %lX prev/now/next %lX/%lX/%lX  clock %lX\n",
> -			cpuid, elapsed_cycles / cpt,
> -			elapsed_cycles, prev_tick, now, next_tick, cpt);
> -	}
> -
> -	/* FIXME: Can we improve the precision? Not with PAGE0. */
> -	usec = (elapsed_cycles * 10000) / PAGE0->mem_10msec;
> -	return usec;
> -#else
> -	return 0;
> -#endif
> -}
> -
> -void
> -do_gettimeofday (struct timeval *tv)
> -{
> -	unsigned long flags, seq, usec, sec;
> -
> -	/* Hold xtime_lock and adjust timeval.  */
> -	do {
> -		seq = read_seqbegin_irqsave(&xtime_lock, flags);
> -		usec = gettimeoffset();
> -		sec = xtime.tv_sec;
> -		usec += (xtime.tv_nsec / 1000);
> -	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
> -
> -	/* Move adjusted usec's into sec's.  */
> -	while (usec >= USEC_PER_SEC) {
> -		usec -= USEC_PER_SEC;
> -		++sec;
> -	}
> -
> -	/* Return adjusted result.  */
> -	tv->tv_sec = sec;
> -	tv->tv_usec = usec;
> -}
> -
> -EXPORT_SYMBOL(do_gettimeofday);
> -
> -int
> -do_settimeofday (struct timespec *tv)
> -{
> -	time_t wtm_sec, sec = tv->tv_sec;
> -	long wtm_nsec, nsec = tv->tv_nsec;
> -
> -	if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
> -		return -EINVAL;
> -
> -	write_seqlock_irq(&xtime_lock);
> -	{
> -		/*
> -		 * This is revolting. We need to set "xtime"
> -		 * correctly. However, the value in this location is
> -		 * the value at the most recent update of wall time.
> -		 * Discover what correction gettimeofday would have
> -		 * done, and then undo it!
> -		 */
> -		nsec -= gettimeoffset() * 1000;
> -
> -		wtm_sec  = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
> -		wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
> -
> -		set_normalized_timespec(&xtime, sec, nsec);
> -		set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
> -
> -		ntp_clear();
> -	}
> -	write_sequnlock_irq(&xtime_lock);
> -	clock_was_set();
> -	return 0;
> -}
> -EXPORT_SYMBOL(do_settimeofday);
>  
>  /*
>   * XXX: We can do better than this.
> @@ -323,13 +229,24 @@ void __init time_init(void)
>  		write_seqlock_irqsave(&xtime_lock, flags);
>  		xtime.tv_sec = tod_data.tod_sec;
>  		xtime.tv_nsec = tod_data.tod_usec * 1000;
> -		set_normalized_timespec(&wall_to_monotonic,
> -		                        -xtime.tv_sec, -xtime.tv_nsec);
>  		write_sequnlock_irqrestore(&xtime_lock, flags);
>  	} else {
>  		printk(KERN_ERR "Error reading tod clock\n");
>  	        xtime.tv_sec = 0;
>  		xtime.tv_nsec = 0;
>  	}
> +
> +	mfctl16_interpolator.frequency = 100 * PAGE0->mem_10msec;
> +	mfctl16_interpolator.drift = -1;
> +#ifdef CONFIG_SMP
> +	if (!nojitter) mfctl16_interpolator.jitter = 1;
> +#endif
> +	register_time_interpolator(&mfctl16_interpolator);
> +
> +	/*
> +	 * Initialize wall_to_monotonic such that adding it to xtime will yield zero, the
> +	 * tv_nsec field must be normalized (i.e., 0 <= nsec < NSEC_PER_SEC).
> +	 */
> +	set_normalized_timespec(&wall_to_monotonic, -xtime.tv_sec, -xtime.tv_nsec);
>  }
>  
> diff --git a/include/linux/timex.h b/include/linux/timex.h
> index db501dc..deb4369 100644
> --- a/include/linux/timex.h
> +++ b/include/linux/timex.h
> @@ -255,11 +255,11 @@ struct time_interpolator {
>  	u8 jitter;			/* if set compensate for fluctuations */
>  	u32 nsec_per_cyc;		/* set by register_time_interpolator() */
>  	void *addr;			/* address of counter or function */
> -	u64 mask;			/* mask the valid bits of the counter */
> +	cycles_t mask;			/* mask the valid bits of the counter */
>  	unsigned long offset;		/* nsec offset at last update of interpolator */
> -	u64 last_counter;		/* counter value in units of the counter at last update */
> -	u64 last_cycle;			/* Last timer value if TIME_SOURCE_JITTER is set */
> -	u64 frequency;			/* frequency in counts/second */
> +	cycles_t last_counter;		/* counter value in units of the counter at last update */
> +	cycles_t last_cycle;		/* Last timer value if TIME_SOURCE_JITTER is set */
> +	cycles_t frequency;		/* frequency in counts/second */
>  	long drift;			/* drift in parts-per-million (or -1) */
>  	unsigned long skips;		/* skips forward */
>  	unsigned long ns_skipped;	/* nanoseconds skipped */
> diff --git a/kernel/timer.c b/kernel/timer.c
> index feddf81..08242f8 100644
> --- a/kernel/timer.c
> +++ b/kernel/timer.c
> @@ -1625,7 +1625,7 @@ struct time_interpolator *time_interpola
>  static struct time_interpolator *time_interpolator_list __read_mostly;
>  static DEFINE_SPINLOCK(time_interpolator_lock);
>  
> -static inline u64 time_interpolator_get_cycles(unsigned int src)
> +static inline cycle_t time_interpolator_get_cycles(unsigned int src)
>  {
>  	unsigned long (*x)(void);
>  
> @@ -1645,14 +1645,14 @@ static inline u64 time_interpolator_get_
>  	}
>  }
>  
> -static inline u64 time_interpolator_get_counter(int writelock)
> +static inline cycle_t time_interpolator_get_counter(int writelock)
>  {
>  	unsigned int src = time_interpolator->source;
>  
>  	if (time_interpolator->jitter)
>  	{
> -		u64 lcycle;
> -		u64 now;
> +		cycle_t lcycle;
> +		cycle_t now;
>  
>  		do {
>  			lcycle = time_interpolator->last_cycle;
> @@ -1701,7 +1701,7 @@ unsigned long time_interpolator_get_offs
>  
>  void time_interpolator_update(long delta_nsec)
>  {
> -	u64 counter;
> +	cycle_t counter;
>  	unsigned long offset;
>  
>  	/* If there is no time interpolator set up then do nothing */
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 


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Subject: Re: [parisc-linux] [RFC] [PATCH] fix gettimeofday() on parisc to be
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Xref: news.gmane.org gmane.linux.ports.parisc:24166

Updated and working patch below...

On Thu Dec 21 2006, Helge Deller wrote:
> Sorry.... idea is correct (I think), but patch is wrong. 
> kernel/timer.c still uses "u64" in my patch. It's easy to mix up "cycle_t" and "cycles_t".
> 
> Still needs more testing...
> 
> Helge
> 
> On Thu Dec 21 2006, Helge Deller wrote:
> > I would like to get your feedback on the attached patch.
> > 
> > While testing the Linux Test Project gettimeofday02 testcase, I found that our gettimeofday() implementation is not monotonic.
> > I know there was much work on gettimeofday() a few monthes back, but still we have problems.
> > Just try this stripped-down testcase yourself:
> > 
> > /*
> >  *      based on gettimeofday02.c  from LTP
> >  * DESCRIPTION
> >  *      Check if gettimeofday is monotonous
> >  *
> >  * ALGORITHM
> >  *      Call gettimeofday() to get a t1 (fist value)
> >  *      call it again to get t2, see if t2 < t1, set t2 = t1, repeat 
> >  */
> > 
> > #include <stdio.h>
> > #include <sys/time.h>
> > 
> > int main(int ac, char **av)
> > {
> >         struct timeval tv1,tv2;
> > 
> >         fprintf(stderr, "Start of test....\n");
> >         gettimeofday(&tv1,NULL);
> >         while (1) {
> >                 gettimeofday(&tv2,NULL);
> >                 if (    (tv2.tv_usec < tv1.tv_usec) &&
> >                         (tv2.tv_sec <= tv1.tv_sec)
> >                         ) {
> >                         fprintf(stderr,"Time is going backwards (old %d.%d vs new %d.%d!)\n",tv1.tv_sec,tv1.tv_usec,tv2.tv_sec,tv2.tv_usec);
> >                         return(1);
> >                 }
> >                 tv1=tv2;
> >         }
> >         return 0;
> > }
> > 
> > 
> > The patch below fixes this nicely for PARISC-Linux, while it removes our own implementation and uses the existing CONFIG_TIME_INTERPOLATION framework.
> > AFAICS up to now it's only used by IA64 and SPARC64.
> > 
> > The things where I wanted to get your feedback on is, that on a 32bit HPPA Kernel we don't allow cmpxchg() with a 8-byte variable, which is used in the generic code in kernel/timer.c line 1674.
> > To make my implementation work, I changed some "u64" variables/struct members in the "struct time_interpolator" in include/linux/timex.h  to "cycles_t" instead.
> > "cycles_t" is defined in include/asm/timex.h mostly as "unsigned long", which is what the default platform width is (e.g. 64bit on 64bit platforms) and get_cycles() is exactly the input-value for the time interpolation framework.
> > As such I think it just makes sense to use this type as well all over the code.
> > For PARISC this chage gives 8bytes on HPPA64 and 4bytes on HPPA32, and so we can use the current implementation with the cmpxchg() in kernel/timer.c.
> > 
> > What do you think ?
> > Will this be acceptable by Linus/others ?
> > It works on my 32bit hppa.
> > 
> > Patch is here:

 arch/parisc/Kconfig       |    4 +
 arch/parisc/kernel/time.c |  151 ++++++++++------------------------------------
 include/linux/timex.h     |    4 -
 kernel/timer.c            |    4 -
 4 files changed, 42 insertions(+), 121 deletions(-)


diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 848a67a..e85c931 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -50,6 +50,10 @@ config GENERIC_CALIBRATE_DELAY
 	bool
 	default y
 
+config TIME_INTERPOLATION
+	bool
+	default y
+
 config TIME_LOW_RES
 	bool
 	depends on SMP
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index bad7d1e..896057f 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -34,6 +34,27 @@
 
 static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
 
+static struct time_interpolator mfctl16_interpolator = {
+	.shift = 16,
+	.mask = 0UL-1,
+	.source = TIME_SOURCE_CPU
+};
+
+
+static int nojitter;
+
+static int __init nojitter_setup(char *str)
+{
+	nojitter = 1;
+	printk("Jitter checking for ctl16 timers disabled\n");
+	return 1;
+}
+
+__setup("nojitter", nojitter_setup);
+
+
+
+
 /*
  * We keep time on PA-RISC Linux by using the Interval Timer which is
  * a pair of registers; one is read-only and one is write-only; both
@@ -172,121 +193,6 @@ unsigned long profile_pc(struct pt_regs 
 EXPORT_SYMBOL(profile_pc);
 
 
-/*
- * Return the number of micro-seconds that elapsed since the last
- * update to wall time (aka xtime).  The xtime_lock
- * must be at least read-locked when calling this routine.
- */
-static inline unsigned long gettimeoffset (void)
-{
-#ifndef CONFIG_SMP
-	/*
-	 * FIXME: This won't work on smp because jiffies are updated by cpu 0.
-	 *    Once parisc-linux learns the cr16 difference between processors,
-	 *    this could be made to work.
-	 */
-	unsigned long now;
-	unsigned long prev_tick;
-	unsigned long next_tick;
-	unsigned long elapsed_cycles;
-	unsigned long usec;
-	unsigned long cpuid = smp_processor_id();
-	unsigned long cpt = clocktick;
-
-	next_tick = cpu_data[cpuid].it_value;
-	now = mfctl(16);	/* Read the hardware interval timer.  */
-
-	prev_tick = next_tick - cpt;
-
-	/* Assume Scenario 1: "now" is later than prev_tick.  */
-	elapsed_cycles = now - prev_tick;
-
-/* aproximate HZ with shifts. Intended math is "(elapsed/clocktick) > HZ" */
-#if HZ == 1000
-	if (elapsed_cycles > (cpt << 10) )
-#elif HZ == 250
-	if (elapsed_cycles > (cpt << 8) )
-#elif HZ == 100
-	if (elapsed_cycles > (cpt << 7) )
-#else
-#warn WTF is HZ set to anyway?
-	if (elapsed_cycles > (HZ * cpt) )
-#endif
-	{
-		/* Scenario 3: clock ticks are missing. */
-		printk (KERN_CRIT "gettimeoffset(CPU %ld): missing %ld ticks!"
-			" cycles %lX prev/now/next %lX/%lX/%lX  clock %lX\n",
-			cpuid, elapsed_cycles / cpt,
-			elapsed_cycles, prev_tick, now, next_tick, cpt);
-	}
-
-	/* FIXME: Can we improve the precision? Not with PAGE0. */
-	usec = (elapsed_cycles * 10000) / PAGE0->mem_10msec;
-	return usec;
-#else
-	return 0;
-#endif
-}
-
-void
-do_gettimeofday (struct timeval *tv)
-{
-	unsigned long flags, seq, usec, sec;
-
-	/* Hold xtime_lock and adjust timeval.  */
-	do {
-		seq = read_seqbegin_irqsave(&xtime_lock, flags);
-		usec = gettimeoffset();
-		sec = xtime.tv_sec;
-		usec += (xtime.tv_nsec / 1000);
-	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
-	/* Move adjusted usec's into sec's.  */
-	while (usec >= USEC_PER_SEC) {
-		usec -= USEC_PER_SEC;
-		++sec;
-	}
-
-	/* Return adjusted result.  */
-	tv->tv_sec = sec;
-	tv->tv_usec = usec;
-}
-
-EXPORT_SYMBOL(do_gettimeofday);
-
-int
-do_settimeofday (struct timespec *tv)
-{
-	time_t wtm_sec, sec = tv->tv_sec;
-	long wtm_nsec, nsec = tv->tv_nsec;
-
-	if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
-		return -EINVAL;
-
-	write_seqlock_irq(&xtime_lock);
-	{
-		/*
-		 * This is revolting. We need to set "xtime"
-		 * correctly. However, the value in this location is
-		 * the value at the most recent update of wall time.
-		 * Discover what correction gettimeofday would have
-		 * done, and then undo it!
-		 */
-		nsec -= gettimeoffset() * 1000;
-
-		wtm_sec  = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
-		wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
-
-		set_normalized_timespec(&xtime, sec, nsec);
-		set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
-
-		ntp_clear();
-	}
-	write_sequnlock_irq(&xtime_lock);
-	clock_was_set();
-	return 0;
-}
-EXPORT_SYMBOL(do_settimeofday);
 
 /*
  * XXX: We can do better than this.
@@ -323,13 +229,24 @@ void __init time_init(void)
 		write_seqlock_irqsave(&xtime_lock, flags);
 		xtime.tv_sec = tod_data.tod_sec;
 		xtime.tv_nsec = tod_data.tod_usec * 1000;
-		set_normalized_timespec(&wall_to_monotonic,
-		                        -xtime.tv_sec, -xtime.tv_nsec);
 		write_sequnlock_irqrestore(&xtime_lock, flags);
 	} else {
 		printk(KERN_ERR "Error reading tod clock\n");
 	        xtime.tv_sec = 0;
 		xtime.tv_nsec = 0;
 	}
+
+	mfctl16_interpolator.frequency = 100* PAGE0->mem_10msec;
+	mfctl16_interpolator.drift = -1;
+#ifdef CONFIG_SMP
+	if (!nojitter) mfctl16_interpolator.jitter = 1;
+#endif
+	register_time_interpolator(&mfctl16_interpolator);
+
+	/*
+	 * Initialize wall_to_monotonic such that adding it to xtime will yield zero, the
+	 * tv_nsec field must be normalized (i.e., 0 <= nsec < NSEC_PER_SEC).
+	 */
+	set_normalized_timespec(&wall_to_monotonic, -xtime.tv_sec, -xtime.tv_nsec);
 }
 
diff --git a/include/linux/timex.h b/include/linux/timex.h
index db501dc..9a24e50 100644
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -255,10 +255,10 @@ struct time_interpolator {
 	u8 jitter;			/* if set compensate for fluctuations */
 	u32 nsec_per_cyc;		/* set by register_time_interpolator() */
 	void *addr;			/* address of counter or function */
-	u64 mask;			/* mask the valid bits of the counter */
+	cycles_t mask;			/* mask the valid bits of the counter */
 	unsigned long offset;		/* nsec offset at last update of interpolator */
 	u64 last_counter;		/* counter value in units of the counter at last update */
-	u64 last_cycle;			/* Last timer value if TIME_SOURCE_JITTER is set */
+	cycles_t last_cycle;		/* Last timer value if TIME_SOURCE_JITTER is set */
 	u64 frequency;			/* frequency in counts/second */
 	long drift;			/* drift in parts-per-million (or -1) */
 	unsigned long skips;		/* skips forward */
diff --git a/kernel/timer.c b/kernel/timer.c
index feddf81..75ac078 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1625,7 +1625,7 @@ struct time_interpolator *time_interpola
 static struct time_interpolator *time_interpolator_list __read_mostly;
 static DEFINE_SPINLOCK(time_interpolator_lock);
 
-static inline u64 time_interpolator_get_cycles(unsigned int src)
+static inline cycles_t time_interpolator_get_cycles(unsigned int src)
 {
 	unsigned long (*x)(void);
 
@@ -1652,7 +1652,7 @@ static inline u64 time_interpolator_get_
 	if (time_interpolator->jitter)
 	{
 		u64 lcycle;
-		u64 now;
+		cycles_t now;
 
 		do {
 			lcycle = time_interpolator->last_cycle;
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Xref: news.gmane.org gmane.linux.ports.parisc:24167

Hi Grant,

I think we have some wrong assignments with above $TOPIC syscalls.

I found this mail and CVS patch from you:
http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2006-February/036543.html
http://cvs.parisc-linux.org/linux-2.6/arch/parisc/kernel/syscall_table.S.diff?cvsroot=&r1=1.22&r2=1.23

but currently we have:
arch/parisc/kernel/syscall_table.S:		ENTRY_SAME(fstatat64)           /* 280 */
while in:
include/asm-parisc/unistd.h:			#define __NR_newfstatat         (__NR_Linux + 280)

Helge

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Xref: news.gmane.org gmane.linux.ports.parisc:24168

On Sat Dec 23 2006, Helge Deller wrote:
> Hi Grant,
> 
> I think we have some wrong assignments with above $TOPIC syscalls.
> 
> I found this mail and CVS patch from you:
> http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2006-February/036543.html
> http://cvs.parisc-linux.org/linux-2.6/arch/parisc/kernel/syscall_table.S.diff?cvsroot=&r1=1.22&r2=1.23
> 
> but currently we have:
> arch/parisc/kernel/syscall_table.S:		ENTRY_SAME(fstatat64)           /* 280 */
> while in:
> include/asm-parisc/unistd.h:			#define __NR_newfstatat         (__NR_Linux + 280)

I think the right solution is to change current line in unistd.h to this:
include/asm-parisc/unistd.h:			#define __NR_fstatat64         (__NR_Linux + 280)

The fstatat testcase from LTP passes with then this change as well...

Helge
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From: "Jeff Bailey" <jbailey@raspberryginger.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] fstatat64 and newfstatat syscalls
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To: "Helge Deller" <deller@gmx.de>
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On 22/12/06, Helge Deller <deller@gmx.de> wrote:
> > but currently we have:
> > arch/parisc/kernel/syscall_table.S:           ENTRY_SAME(fstatat64)           /* 280 */
> > while in:
> > include/asm-parisc/unistd.h:                  #define __NR_newfstatat         (__NR_Linux + 280)
>
> I think the right solution is to change current line in unistd.h to this:
> include/asm-parisc/unistd.h:                    #define __NR_fstatat64         (__NR_Linux + 280)

Umm, isn't this a public ABI change?  would it be better to assign a
new syscall number and cope correctly with the old one?

I'm wondering what this means to things that are already compiled...

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/



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From: Kyle McMartin <kyle@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] fstatat64 and newfstatat syscalls
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On Sun, Dec 24, 2006 at 01:19:59PM -0500, Jeff Bailey wrote:
> 
> Umm, isn't this a public ABI change?  would it be better to assign a
> new syscall number and cope correctly with the old one?
> 

Meh. I doubt it will be a problem.



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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] fstatat64 and newfstatat syscalls
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On Sat, Dec 23, 2006 at 12:54:34AM +0100, Helge Deller wrote:
> On Sat Dec 23 2006, Helge Deller wrote:
> > Hi Grant,
> > 
> > I think we have some wrong assignments with above $TOPIC syscalls.
> > 
> > I found this mail and CVS patch from you:
> > http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2006-February/036543.html

Yeah - I wasn't that confident in that change.  My main goal was to get the build
working again. I didn't have any way to prove it was correct.

> > http://cvs.parisc-linux.org/linux-2.6/arch/parisc/kernel/syscall_table.S.diff?cvsroot=&r1=1.22&r2=1.23
> > 
> > but currently we have:
> > arch/parisc/kernel/syscall_table.S:		ENTRY_SAME(fstatat64)           /* 280 */
> > while in:
> > include/asm-parisc/unistd.h:			#define __NR_newfstatat         (__NR_Linux + 280)
> 
> I think the right solution is to change current line in unistd.h to this:
> include/asm-parisc/unistd.h:			#define __NR_fstatat64         (__NR_Linux + 280)

Yeah. That looks better to me too.
I suspect I assumed fstatat64 and newfsatat would be equivalent in all contexts.

> The fstatat testcase from LTP passes with then this change as well...

Excellent - thanks for fixing!

grant

> 
> Helge
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [RFC] [PATCH] fix gettimeofday() on parisc to be monotonic
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On Thu, Dec 21, 2006 at 10:05:03AM +0100, Helge Deller wrote:
...
> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
> index bad7d1e..896057f 100644
> --- a/arch/parisc/kernel/time.c
> +++ b/arch/parisc/kernel/time.c
> @@ -34,6 +34,27 @@
>  
>  static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
>  
> +static struct time_interpolator mfctl16_interpolator = {
> +	.shift = 16,
> +	.mask = 0UL-1,

My preference is to use "~OUL" since it's unsigned.
The "0-1" doesn't make sense for unsigned even though most people
will know what it does.

> +	.source = TIME_SOURCE_CPU
> +};
...

> --- a/kernel/timer.c
> +++ b/kernel/timer.c
> @@ -1625,7 +1625,7 @@ struct time_interpolator *time_interpola
>  static struct time_interpolator *time_interpolator_list __read_mostly;
>  static DEFINE_SPINLOCK(time_interpolator_lock);
>  
> -static inline u64 time_interpolator_get_cycles(unsigned int src)
> +static inline cycles_t time_interpolator_get_cycles(unsigned int src)
>  {
>  	unsigned long (*x)(void);
>  
> @@ -1652,7 +1652,7 @@ static inline u64 time_interpolator_get_
>  	if (time_interpolator->jitter)
>  	{
>  		u64 lcycle;
> -		u64 now;
> +		cycles_t now;
>  
>  		do {
>  			lcycle = time_interpolator->last_cycle;

Too bad lcycle and time_interpolator_get_count also don't use cycles_t.

Still looking at the code though.

thanks,
grant



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From: "Jeff Bailey" <jbailey@raspberryginger.com>
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Subject: [parisc-linux] Feisty and HPPA
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To: parisc-linux <parisc-linux@lists.parisc-linux.org>,
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For those interested in playing along, I'm putting the .deb's that I'm
building up at:

http://people.ubuntu.com/~jbailey/snapshot/hppa-feisty/

It's apt'able.  You probably also want to have the usual Dapper and
Feisty repos in your sources.list, since older binaries and arch-all
packages can come from there.  Sources are all the pristine source
>from Feisty.

In particular, this features NPTL and TLS, although with 2.6.20-rc2
I'm still seeing the glibc failures that Carlos reported on September
6th[0], not the much-reduced set he reported on September 13th[1].

[0] http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030146.html
[1] http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030197.html

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
_______________________________________________
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http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Cc: Matthew Wilcox <matthew@wil.cx>
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Xref: news.gmane.org gmane.linux.ports.parisc:24174

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Hi Matthew,

On Tue Dec 26 2006, Matthew Wilcox wrote:
> Grant noted that the way we construct a PDC
> address for a PCI device is wrong on some machines
> (ftp://ftp.parisc-linux.org/patches/diff-2.6.20-rc1-PCI_hwpath).
> I noticed the PDC_PAT_IO_GET_HW_FROM_PCI_CONFIG procedure in the PAT
> PDC document, and decided we should use it instead where we can.
> 
> I also noticed that the definition of the flags byte has been changed
> for PAT machines -- the bottom 6 bits now define which cell the device is
> attached to.  This explains (for example) why we get a duplicate hwpath
> for Vesa's rp8400.
> 
> We would have got wrong results from the pdc_stable driver when it tried
> to read the timeout value, so I've just disabled that sysfs file on pdc
> machines for now.
> 
> I chose to implement cellular support by tagging each parisc_device
> with a 'cell' byte, rather than the more obvious creation of a set of
> cell parisc_devices as I thought this would minimise code churn and
> memory consumption.
> 
> I didn't like the use of PF_* for flag definitions.  To me, PF_* are
> networking protocol families (eg PF_INET).  So I changed that to HWP
> for hardware path.
> 
> Testing appreciated; I've only tried it on an N-class.

I've tested the patch on a c3000, a 715/64 and an B160L.
Your patch works without obvious problems.
dmesg logs of all machines attached.

Helge


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Linux version 2.6.20-rc2 (root@p100) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #137 Tue Dec 26 01:35:03 CET 2006
FP[0] enabled: Rev 1 Model 13
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: Snake.
model 000060a0 00000481 00000000 00000000 773c7d2c 00000000 00000004 00000072 00000072
vers  0000000c
model 9000/715
Total Memory: 160 MB
On node 0 totalpages: 40960
  DMA zone: 320 pages used for memmap
  DMA zone: 0 pages reserved
  DMA zone: 40640 pages, LIFO batch:7
  Normal zone: 0 pages used for memmap
Built 1 zonelists.  Total pages: 40640
Kernel command line: HOME=/ root=/dev/sda3 ip=bootp console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 1024 (order: 10, 4096 bytes)
Console: colour dummy device 128x48
------------------------
| Locking API testsuite:
----------------------------------------------------------------------------
                                 | spin |wlock |rlock |mutex | wsem | rsem |
  --------------------------------------------------------------------------
                     A-A deadlock:failed|failed|  ok  |failed|failed|failed|
                 A-B-B-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-B-C-C-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-C-A-B-C deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-B-C-C-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-C-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
                    double unlock:  ok  |  ok  |failed|  ok  |failed|failed|
                  initialize held:failed|failed|failed|failed|failed|failed|
                 bad unlock order:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
  --------------------------------------------------------------------------
              recursive read-lock:             |  ok  |             |failed|
           recursive read-lock #2:             |  ok  |             |failed|
            mixed read-write-lock:             |failed|             |failed|
            mixed write-read-lock:             |failed|             |failed|
  --------------------------------------------------------------------------
     hard-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     hard-irqs-on + irq-safe-A/21:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/21:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/12:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/21:failed|failed|  ok  |
         hard-safe-A + irqs-on/12:failed|failed|  ok  |
         soft-safe-A + irqs-on/12:failed|failed|  ok  |
         hard-safe-A + irqs-on/21:failed|failed|  ok  |
         soft-safe-A + irqs-on/21:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/321:failed|failed|  ok  |
      hard-irq lock-inversion/123:failed|failed|  ok  |
      soft-irq lock-inversion/123:failed|failed|  ok  |
      hard-irq lock-inversion/132:failed|failed|  ok  |
      soft-irq lock-inversion/132:failed|failed|  ok  |
      hard-irq lock-inversion/213:failed|failed|  ok  |
      soft-irq lock-inversion/213:failed|failed|  ok  |
      hard-irq lock-inversion/231:failed|failed|  ok  |
      soft-irq lock-inversion/231:failed|failed|  ok  |
      hard-irq lock-inversion/312:failed|failed|  ok  |
      soft-irq lock-inversion/312:failed|failed|  ok  |
      hard-irq lock-inversion/321:failed|failed|  ok  |
      soft-irq lock-inversion/321:failed|failed|  ok  |
      hard-irq read-recursion/123:  ok  |
      soft-irq read-recursion/123:  ok  |
      hard-irq read-recursion/132:  ok  |
      soft-irq read-recursion/132:  ok  |
      hard-irq read-recursion/213:  ok  |
      soft-irq read-recursion/213:  ok  |
      hard-irq read-recursion/231:  ok  |
      soft-irq read-recursion/231:  ok  |
      hard-irq read-recursion/312:  ok  |
      soft-irq read-recursion/312:  ok  |
      hard-irq read-recursion/321:  ok  |
      soft-irq read-recursion/321:  ok  |
--------------------------------------------------------
142 out of 218 testcases failed, as expected. |
----------------------------------------------------
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 156316k/163840k available (3309k kernel code, 7376k reserved, 1474k data, 368k init)
virtual kernel memory layout:
    vmalloc : 0x00810000 - 0x0f000000   ( 231 MB)
    memory  : 0x10000000 - 0x1a000000   ( 160 MB)
      .init : 0x10604000 - 0x10660000   ( 368 kB)
      .data : 0x1043b690 - 0x105ac000   (1474 kB)
      .text : 0x10100000 - 0x1043b690   (3309 kB)
Calibrating delay loop... 63.36 BogoMIPS (lpj=126720)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Mirage Jr GSC Builtin Graphics at 0xf8000000 [1] { 10, 0x0, 0x012, 0x00085 }
2. Mirage Jr Core BA at 0xf0100000 [2] { 11, 0x0, 0x028, 0x00081 }
3. Mirage Jr Core SCSI at 0xf0106000 [2/0/1] { 10, 0x0, 0x028, 0x00082 }
4. Mirage Jr Core LAN (802.3) at 0xf0107000 [2/0/2] { 10, 0x0, 0x028, 0x0008a }
5. Mirage Jr Core RS-232 at 0xf0105000 [2/0/4] { 10, 0x0, 0x028, 0x0008c }
6. Mirage Jr Core Centronics at 0xf0102000 [2/0/6] { 10, 0x0, 0x028, 0x00074 }
7. Mirage Jr Audio at 0xf0104000 [2/0/8] { 10, 0x0, 0x028, 0x0007b }
8. Mirage Jr Core PC Floppy at 0xf010a000 [2/0/10] { 10, 0x0, 0x028, 0x00083 }
9. Mirage Jr Core PS/2 Port at 0xf0108000 [2/0/11] { 10, 0x0, 0x028, 0x00084 }
10. Mirage Jr Core PS/2 Port at 0xf0108100 [2/0/12] { 10, 0x0, 0x028, 0x00084 }
11. Mirage Jr Wax EISA BA at 0xfc000000 [4] { 11, 0x0, 0x028, 0x00090 }
12. Mirage Jr Wax BA at 0xf0200000 [5] { 11, 0x0, 0x012, 0x0008e }
13. Mirage Jr Wax HIL at 0xf0201000 [5/0/1] { 10, 0x0, 0x012, 0x00073 }
14. Mirage Jr Wax RS-232 at 0xf0202000 [5/0/2] { 10, 0x0, 0x012, 0x0008c }
15. Mirage Jr (715/64) at 0xfffbe000 [8] { 0, 0x0, 0x60a, 0x00004 }
16. Memory at 0xfffbf000 [9] { 1, 0x0, 0x04a, 0x00009 }
Enabling regular chassis codes support v0.05
CPU(s): 1 x PA7100LC (PCX-L) at 64.000000 MHz
Whole cache flush 46824 cycles, flushing 5636096 bytes 644668 cycles
Setting cache flush threshold to ba0 (1 CPUs online)
Lasi version 0 at 0xf0100000 found.
LED display at f00e0000 registered
wax at 0xf0200000 found.
Wax EISA Adapter found at 0xfc000000
Enumerating EISA bus
EISA: Probing bus 0 at 4
EISA: Mainboard HWPC000 detected.
EISA: Detected 0 cards.
SCSI subsystem initialized
libata version 2.00 loaded.
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
NET: Registered protocol family 2
IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
TCP established hash table entries: 8192 (order: 5, 131072 bytes)
TCP bind hash table entries: 4096 (order: 4, 81920 bytes)
TCP: Hash tables configured (established 8192 bind 4096)
TCP reno registered
Chassis warnings not supported.
unwind_init: start = 0x10530180, end = 0x1056bad0, entries = 15253
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler deadline registered
io scheduler cfq registered
EISA EEPROM at 0x00810400
PDC Stable Storage facility v0.30
Gecko-style soft power switch enabled.
STI GSC/PCI core graphics driver Version 0.9a
    id 2b4ded6d-40a00499, conforms to spec rev. 8.04
    graphics card name: HPA208LCG1280
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-8 frame buffer device, HPA208LCG1280, id: 2b4ded6d, mmio: 0xf8100000
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
2:0:4: ttyS0 at MMIO 0xf0105800 (irq = 18) is a 16550A
5:0:2: ttyS1 at MMIO 0xf0202800 (irq = 25) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xf0102800, irq 19 [PCSPP,TRISTATE]
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xf0107000, IRQ 17
eth0: 82596 at 0xf0107000, 08 00 09 C2 9E 60 IRQ 17.
orinoco 0.15 (David Gibson <hermes@gibson.dropbear.id.au>, Pavel Roskin <proski@gnu.org>, et al)
orinoco_cs 0.15 (David Gibson <hermes@gibson.dropbear.id.au>, Pavel Roskin <proski@gnu.org>, et al)
spectrum_cs 0.15 (Pavel Roskin <proski@gnu.org>, David Gibson <hermes@gibson.dropbear.id.au>, et al)
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi0: 53c710 rev 2 
scsi0 : LASI SCSI 53c700
scsi 0:0:6:0: Direct-Access     QUANTUM  FIREBALL_TM3200S 300X PQ: 0 ANSI: 2
 target0:0:6: Beginning Domain Validation
scsi 0:0:6:0: Enabling Tag Command Queuing
 target0:0:6: asynchronous
 target0:0:6: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 8)
 target0:0:6: Domain Validation skipping write tests
 target0:0:6: Ending Domain Validation
st: Version 20061107, fixed bufsize 32768, s/g segs 256
SCSI device sda: 6281856 512-byte hdwr sectors (3216 MB)
sda: Write Protect is off
sda: Mode Sense: a3 00 00 08
SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
SCSI device sda: 6281856 512-byte hdwr sectors (3216 MB)
sda: Write Protect is off
sda: Mode Sense: a3 00 00 08
SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
 sda: sda1 sda2 sda3 sda4
sd 0:0:6:0: Attached scsi disk sda
sd 0:0:6:0: Attached scsi generic sg0 type 0
usbmon: debugfs is not available
ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
USB Universal Host Controller Interface driver v3.0
usbcore: registered new interface driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
serio: GSC PS/2 keyboard port at 0x0081a000 irq 22 @ 2:0:11
serio: GSC PS/2 mouse port at 0x0081c100 irq 22 @ 2:0:12
mice: PS/2 mouse device common for all mice
gscps2.c: timeout - could not write byte 0xed
gscps2.c: sending byte 0xed failed.
gscps2.c: timeout - could not write byte 0xed
gscps2.c: sending byte 0xed failed.
rtc-test rtc-test.0: rtc core: registered test as rtc0
rtc-test rtc-test.1: rtc core: registered test as rtc1
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: raid10 personality registered for level 10
raid6: int32x1     19 MB/s
raid6: int32x2     29 MB/s
raid6: int32x4     34 MB/s
raid6: int32x8     25 MB/s
raid6: using algorithm int32x4 (34 MB/s)
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
raid5: measuring checksumming speed
   8regs     :    45.000 MB/sec
   8regs_prefetch:    45.000 MB/sec
   32regs    :    73.000 MB/sec
   32regs_prefetch:    73.000 MB/sec
raid5: using function: 32regs_prefetch (73.000 MB/sec)
device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-devel@redhat.com
TCP cubic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
rtc-test rtc-test.0: setting the system clock to 2101-08-02 02:46:25 (4152393985)
eth0: link ok.
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 192.168.178.50, my address is 192.168.178.64
IP-Config: Complete:
      device=eth0, addr=192.168.178.64, mask=255.255.255.0, gw=192.168.178.1,
     host=pa64, domain=box, nis-domain=(none),
     bootserver=192.168.178.50, rootserver=192.168.178.50, rootpath=
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 368k freed
Adding 248580k swap on /dev/sda2.  Priority:-1 extents:1 across:248580k
EXT3 FS on sda3, internal journal
NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
NFSD: starting 90-second grace period

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Linux version 2.6.20-rc2 (root@p100) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #137 Tue Dec 26 01:35:03 CET 2006
FP[0] enabled: Rev 1 Model 15
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005020 00000481 00000000 02020202 7794d7fe 100000f0 00000004 000000ba 000000ba
vers  00000008
CPUID vers 15 rev 8 (0x000001e8)
capabilities 0x2
model 9000/778/B160L
Total Memory: 512 MB
On node 0 totalpages: 131072
  DMA zone: 1024 pages used for memmap
  DMA zone: 0 pages reserved
  DMA zone: 130048 pages, LIFO batch:31
  Normal zone: 0 pages used for memmap
LED display at f0190001 registered
Built 1 zonelists.  Total pages: 130048
Kernel command line: HOME=/ root=/dev/sda3 ip=bootp console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 2048 (order: 11, 8192 bytes)
Console: colour dummy device 128x48
------------------------
| Locking API testsuite:
----------------------------------------------------------------------------
                                 | spin |wlock |rlock |mutex | wsem | rsem |
  --------------------------------------------------------------------------
                     A-A deadlock:failed|failed|  ok  |failed|failed|failed|
                 A-B-B-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-B-C-C-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-C-A-B-C deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-B-C-C-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-C-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
                    double unlock:  ok  |  ok  |failed|  ok  |failed|failed|
                  initialize held:failed|failed|failed|failed|failed|failed|
                 bad unlock order:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
  --------------------------------------------------------------------------
              recursive read-lock:             |  ok  |             |failed|
           recursive read-lock #2:             |  ok  |             |failed|
            mixed read-write-lock:             |failed|             |failed|
            mixed write-read-lock:             |failed|             |failed|
  --------------------------------------------------------------------------
     hard-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     hard-irqs-on + irq-safe-A/21:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/21:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/12:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/21:failed|failed|  ok  |
         hard-safe-A + irqs-on/12:failed|failed|  ok  |
         soft-safe-A + irqs-on/12:failed|failed|  ok  |
         hard-safe-A + irqs-on/21:failed|failed|  ok  |
         soft-safe-A + irqs-on/21:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/321:failed|failed|  ok  |
      hard-irq lock-inversion/123:failed|failed|  ok  |
      soft-irq lock-inversion/123:failed|failed|  ok  |
      hard-irq lock-inversion/132:failed|failed|  ok  |
      soft-irq lock-inversion/132:failed|failed|  ok  |
      hard-irq lock-inversion/213:failed|failed|  ok  |
      soft-irq lock-inversion/213:failed|failed|  ok  |
      hard-irq lock-inversion/231:failed|failed|  ok  |
      soft-irq lock-inversion/231:failed|failed|  ok  |
      hard-irq lock-inversion/312:failed|failed|  ok  |
      soft-irq lock-inversion/312:failed|failed|  ok  |
      hard-irq lock-inversion/321:failed|failed|  ok  |
      soft-irq lock-inversion/321:failed|failed|  ok  |
      hard-irq read-recursion/123:  ok  |
      soft-irq read-recursion/123:  ok  |
      hard-irq read-recursion/132:  ok  |
      soft-irq read-recursion/132:  ok  |
      hard-irq read-recursion/213:  ok  |
      soft-irq read-recursion/213:  ok  |
      hard-irq read-recursion/231:  ok  |
      soft-irq read-recursion/231:  ok  |
      hard-irq read-recursion/312:  ok  |
      soft-irq read-recursion/312:  ok  |
      hard-irq read-recursion/321:  ok  |
      soft-irq read-recursion/321:  ok  |
--------------------------------------------------------
142 out of 218 testcases failed, as expected. |
----------------------------------------------------
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 513152k/524288k available (3309k kernel code, 11100k reserved, 1474k data, 368k init)
virtual kernel memory layout:
    vmalloc : 0x00810000 - 0x0f000000   ( 231 MB)
    memory  : 0x10000000 - 0x30000000   ( 512 MB)
      .init : 0x10604000 - 0x10660000   ( 368 kB)
      .data : 0x1043b690 - 0x105ac000   (1474 kB)
      .text : 0x10100000 - 0x1043b690   (3309 kB)
Calibrating delay loop... 106.24 BogoMIPS (lpj=212480)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Phantom PseudoBC GSC+ Port at 0xffc00000 [8] { 7, 0x0, 0x504, 0x00000 }
2. Dino PCI Bridge at 0xfff80000 [8/0] { 13, 0x3, 0x680, 0x0000a }
3. Merlin+ 132 Dino RS-232 at 0xfff83000 [8/0/63] { 10, 0x0, 0x022, 0x0008c }
4. Merlin 160 Core FW-SCSI at 0xfff8c000 [8/12] { 4, 0x0, 0x03d, 0x00089 }
5. Merlin 160 Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x03d, 0x00081 }, additional addresses: 0xffd0c000 0xffc00000 
6. Merlin 160 Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x03d, 0x0008c }
7. Merlin 160 Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x03d, 0x00082 }
8. Merlin 160 Core LAN (802.3) at 0xffd07000 [8/16/6] { 10, 0x0, 0x03d, 0x0008a }
9. Merlin 160 Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x03d, 0x00074 }, additional addresses: 0xffd01000 0xffd03000 
10. Merlin 160 Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x03d, 0x0007b }
11. Merlin 160 Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x03d, 0x00084 }
12. Merlin 160 Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x03d, 0x00084 }
13. Coral SGC Graphics at 0xfa000000 [8/4] { 10, 0x0, 0x004, 0x00077 }
14. Coral SGC Graphics at 0xf4000000 [8/8] { 10, 0x0, 0x004, 0x00077 }
15. Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 0x00085 }, additional addresses: 0xf0011000 
16. Merlin L2 160 (9000/778/B160L) at 0xfffbe000 [62] { 0, 0x0, 0x502, 0x00004 }
17. Memory at 0xfffbf000 [63] { 1, 0x0, 0x067, 0x00009 }
18. Merlin+ 132 Dino PS/2 Port at 0xfff81000 [1] { 10, 0x0, 0x022, 0x00096 }
Enabling regular chassis codes support v0.05
CPU(s): 1 x PA7300LC (PCX-L2) at 160.000000 MHz
Whole cache flush 25730 cycles, flushing 5636096 bytes 805908 cycles
Setting cache flush threshold to 1000 (1 CPUs online)
Lasi version 0 at 0xffd00000 found.
Dino version 3.1 found at 0xfff80000
Dino: No PCI devices enabled.
SCSI subsystem initialized
libata version 2.00 loaded.
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
NET: Registered protocol family 2
IP route cache hash table entries: 16384 (order: 4, 65536 bytes)
TCP established hash table entries: 65536 (order: 8, 1048576 bytes)
TCP bind hash table entries: 32768 (order: 7, 655360 bytes)
TCP: Hash tables configured (established 65536 bind 32768)
TCP reno registered
Enabling PDC chassis warnings support v0.05
unwind_init: start = 0x10530180, end = 0x1056bad0, entries = 15253
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler deadline registered
io scheduler cfq registered
PDC Stable Storage facility v0.30
Soft power switch enabled, polling @ 0xf0140000.
STI GSC/PCI core graphics driver Version 0.9a
    id 2bcb015a-9a02587, conforms to spec rev. 8.04
    graphics card name: HPA4071B
    id 2d08c0a7-9a02587, conforms to spec rev. 8.07
    graphics card name: HPA4450AX1024
    id 2d08c0a7-9a02587, conforms to spec rev. 8.07
    graphics card name: INTERNAL_EG_X1024
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, HPA4071B, id: 2bcb015a, mmio: 0xfa100000
fb1: stifb 1024x768-8 frame buffer device, HPA4450AX1024, id: 2d08c0a7, mmio: 0xf4100000
fb2: stifb 1024x768-8 frame buffer device, INTERNAL_EG_X1024, id: 2d08c0a7, mmio: 0xf8100000
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
8:16:4: ttyS0 at MMIO 0xffd05800 (irq = 16) is a 16550A
8:0:63: ttyS1 at MMIO 0xfff83800 (irq = 22) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 19 [PCSPP,TRISTATE]
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
LASI 82596 driver - Revision: 1.30
Found i82596 at 0xffd07000, IRQ 18
eth0: 82596 at 0xffd07000, 08 00 09 EF 34 F5 IRQ 18.
orinoco 0.15 (David Gibson <hermes@gibson.dropbear.id.au>, Pavel Roskin <proski@gnu.org>, et al)
orinoco_cs 0.15 (David Gibson <hermes@gibson.dropbear.id.au>, Pavel Roskin <proski@gnu.org>, et al)
spectrum_cs 0.15 (Pavel Roskin <proski@gnu.org>, David Gibson <hermes@gibson.dropbear.id.au>, et al)
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
zalon_probe: Zalon version 1, IRQ 67
ncr53c720-0: rev 0xf irq 67
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3g
scsi 0:0:6:0: Direct-Access     SEAGATE  ST32171W         HP03 PQ: 0 ANSI: 2
 target0:0:6: Beginning Domain Validation
 target0:0:6: asynchronous
 target0:0:6: wide asynchronous
 target0:0:6: FAST-10 WIDE SCSI 20.0 MB/s ST (100 ns, offset 8)
 target0:0:6: Domain Validation skipping write tests
 target0:0:6: Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
scsi 1:0:1:0: CD-ROM            PHILIPS  PCA80SC          V3-0 PQ: 0 ANSI: 2
 target1:0:1: Beginning Domain Validation
 target1:0:1: asynchronous
 target1:0:1: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 8)
 target1:0:1: Domain Validation skipping write tests
 target1:0:1: Ending Domain Validation
st: Version 20061107, fixed bufsize 32768, s/g segs 256
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
sda: Write Protect is off
sda: Mode Sense: 9f 00 10 08
SCSI device sda: write cache: disabled, read cache: enabled, supports DPO and FUA
SCSI device sda: 4194685 512-byte hdwr sectors (2148 MB)
sda: Write Protect is off
sda: Mode Sense: 9f 00 10 08
SCSI device sda: write cache: disabled, read cache: enabled, supports DPO and FUA
 sda: sda1 sda2 sda3
sd 0:0:6:0: Attached scsi disk sda
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
sr 1:0:1:0: Attached scsi CD-ROM sr0
sd 0:0:6:0: Attached scsi generic sg0 type 0
sr 1:0:1:0: Attached scsi generic sg1 type 5
usbmon: debugfs is not available
ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
USB Universal Host Controller Interface driver v3.0
usbcore: registered new interface driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
serio: GSC PS/2 keyboard port at 0x0081a000 irq 21 @ 8:16:7
serio: GSC PS/2 mouse port at 0x0081c100 irq 21 @ 8:16:8
mice: PS/2 mouse device common for all mice
gscps2.c: timeout - could not write byte 0xed
gscps2.c: sending byte 0xed failed.
gscps2.c: timeout - could not write byte 0xed
gscps2.c: sending byte 0xed failed.
rtc-test rtc-test.0: rtc core: registered test as rtc0
rtc-test rtc-test.1: rtc core: registered test as rtc1
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: raid10 personality registered for level 10
raid6: int32x1     41 MB/s
raid6: int32x2     68 MB/s
raid6: int32x4     80 MB/s
raid6: int32x8     69 MB/s
raid6: using algorithm int32x4 (80 MB/s)
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
raid5: measuring checksumming speed
   8regs     :   131.000 MB/sec
   8regs_prefetch:   131.000 MB/sec
   32regs    :   206.000 MB/sec
   32regs_prefetch:   206.000 MB/sec
raid5: using function: 32regs_prefetch (206.000 MB/sec)
device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-devel@redhat.com
TCP cubic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
rtc-test rtc-test.0: setting the system clock to 1987-01-05 20:01:33 (536875293)
eth0: link ok.
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 192.168.178.50, my address is 192.168.178.65
IP-Config: Complete:
      device=eth0, addr=192.168.178.65, mask=255.255.255.0, gw=192.168.178.1,
     host=b160, domain=box, nis-domain=(none),
     bootserver=192.168.178.50, rootserver=192.168.178.50, rootpath=
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 368k freed
Adding 249232k swap on /dev/sda2.  Priority:-1 extents:1 across:249232k
EXT3 FS on sda3, internal journal

--Boundary-00=_BBskFHj9kJL8sAu
Content-Type: text/plain; charset="iso-8859-1"; name="dmesg-c3000-2620rc2.log"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename="dmesg-c3000-2620rc2.log"

Linux version 2.6.20-rc2 (root@p100) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #137 Tue Dec 26 01:35:03 CET 2006
FP[0] enabled: Rev 1 Model 19
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005dc0 00000481 00000000 00000002 777c3e84 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 19 rev 11 (0x0000026b)
capabilities 0x7
model 9000/785/C3700
Total Memory: 2048 MB
On node 0 totalpages: 524288
  DMA zone: 4096 pages used for memmap
  DMA zone: 0 pages reserved
  DMA zone: 520192 pages, LIFO batch:31
  Normal zone: 0 pages used for memmap
LCD display at f05d0008,f05d0000 registered
Built 1 zonelists.  Total pages: 520192
Kernel command line: HOME=/ root=/dev/sda3 ip=bootp console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 4096 (order: 12, 16384 bytes)
Console: colour dummy device 128x48
------------------------
| Locking API testsuite:
----------------------------------------------------------------------------
                                 | spin |wlock |rlock |mutex | wsem | rsem |
  --------------------------------------------------------------------------
                     A-A deadlock:failed|failed|  ok  |failed|failed|failed|
                 A-B-B-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-B-C-C-A deadlock:failed|failed|  ok  |failed|failed|failed|
             A-B-C-A-B-C deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-B-C-C-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
         A-B-C-D-B-C-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
                    double unlock:  ok  |  ok  |failed|  ok  |failed|failed|
                  initialize held:failed|failed|failed|failed|failed|failed|
                 bad unlock order:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
  --------------------------------------------------------------------------
              recursive read-lock:             |  ok  |             |failed|
           recursive read-lock #2:             |  ok  |             |failed|
            mixed read-write-lock:             |failed|             |failed|
            mixed write-read-lock:             |failed|             |failed|
  --------------------------------------------------------------------------
     hard-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/12:failed|failed|  ok  |
     hard-irqs-on + irq-safe-A/21:failed|failed|  ok  |
     soft-irqs-on + irq-safe-A/21:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/12:failed|failed|  ok  |
       sirq-safe-A => hirqs-on/21:failed|failed|  ok  |
         hard-safe-A + irqs-on/12:failed|failed|  ok  |
         soft-safe-A + irqs-on/12:failed|failed|  ok  |
         hard-safe-A + irqs-on/21:failed|failed|  ok  |
         soft-safe-A + irqs-on/21:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #1/321:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/123:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/132:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/213:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/231:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/312:failed|failed|  ok  |
    hard-safe-A + unsafe-B #2/321:failed|failed|  ok  |
    soft-safe-A + unsafe-B #2/321:failed|failed|  ok  |
      hard-irq lock-inversion/123:failed|failed|  ok  |
      soft-irq lock-inversion/123:failed|failed|  ok  |
      hard-irq lock-inversion/132:failed|failed|  ok  |
      soft-irq lock-inversion/132:failed|failed|  ok  |
      hard-irq lock-inversion/213:failed|failed|  ok  |
      soft-irq lock-inversion/213:failed|failed|  ok  |
      hard-irq lock-inversion/231:failed|failed|  ok  |
      soft-irq lock-inversion/231:failed|failed|  ok  |
      hard-irq lock-inversion/312:failed|failed|  ok  |
      soft-irq lock-inversion/312:failed|failed|  ok  |
      hard-irq lock-inversion/321:failed|failed|  ok  |
      soft-irq lock-inversion/321:failed|failed|  ok  |
      hard-irq read-recursion/123:  ok  |
      soft-irq read-recursion/123:  ok  |
      hard-irq read-recursion/132:  ok  |
      soft-irq read-recursion/132:  ok  |
      hard-irq read-recursion/213:  ok  |
      soft-irq read-recursion/213:  ok  |
      hard-irq read-recursion/231:  ok  |
      soft-irq read-recursion/231:  ok  |
      hard-irq read-recursion/312:  ok  |
      soft-irq read-recursion/312:  ok  |
      hard-irq read-recursion/321:  ok  |
      soft-irq read-recursion/321:  ok  |
--------------------------------------------------------
142 out of 218 testcases failed, as expected. |
----------------------------------------------------
Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 131072 (order: 7, 524288 bytes)
Memory: 2069376k/2097152k available (3309k kernel code, 27680k reserved, 1474k data, 368k init)
virtual kernel memory layout:
    vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
    memory  : 0x10000000 - 0x90000000   (2048 MB)
      .init : 0x10604000 - 0x10660000   ( 368 kB)
      .data : 0x1043b690 - 0x105ac000   (1474 kB)
      .text : 0x10100000 - 0x1043b690   (3309 kB)
Calibrating delay loop... 1495.04 BogoMIPS (lpj=2990080)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. Allegro W2 at 0xfffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
7. Memory at 0xfed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
Enabling regular chassis codes support v0.05
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
Whole cache flush 247082 cycles, flushing 5636096 bytes 1127108 cycles
Setting cache flush threshold to 380 (1 CPUs online)
SBA found Astro 2.1 at 0xfed00000
Elroy version TR4.0 (0x5) found at 0xfed30000
PCI: Enabled native mode for NS87415 (pif=0x8f)
Elroy version TR4.0 (0x5) found at 0xfed32000
iosapic: no IRTE for 0000:01:04.0 (IRQ not connected?)
iosapic: no IRTE for 0000:01:05.0 (IRQ not connected?)
Elroy version TR4.0 (0x5) found at 0xfed38000
Elroy version TR4.0 (0x5) found at 0xfed3c000
iosapic: hpa not registered for 0000:03:02.0
SCSI subsystem initialized
libata version 2.00 loaded.
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
NET: Registered protocol family 2
IP route cache hash table entries: 65536 (order: 6, 262144 bytes)
TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 8, 1310720 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
Enabling PDC chassis warnings support v0.05
unwind_init: start = 0x10530180, end = 0x1056bad0, entries = 15253
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler deadline registered
io scheduler cfq registered
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 67) 
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
PDC Stable Storage facility v0.30
Soft power switch enabled, polling @ 0xf0400804.
STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f2400000 (64 kB), fb at f8000000 (32 MB)
    id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
    graphics card name: PCI_GRAFFITIX1024
STI PCI graphic ROM found at f3800000 (2048 kB), fb at f6000000 (32 MB)
    id 35acda30-9a02587, conforms to spec rev. 8.0d
    graphics card name: A1262A
sticon: Initializing STI text console.
Console: switching to colour STI console 128x48
Console: switching to colour frame buffer device 128x48
fb0: stifb 1024x768-8 frame buffer device, PCI_GRAFFITIX1024, id: 2d08c0a7, mmio: 0xf8100000
stifb: 'A1262A' (id: 0x35acda30) not supported.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 3) is a 16550A
serial8250: ttyS1 at I/O 0x2f8 (irq = 4) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
orinoco 0.15 (David Gibson <hermes@gibson.dropbear.id.au>, Pavel Roskin <proski@gnu.org>, et al)
orinoco_cs 0.15 (David Gibson <hermes@gibson.dropbear.id.au>, Pavel Roskin <proski@gnu.org>, et al)
spectrum_cs 0.15 (Pavel Roskin <proski@gnu.org>, David Gibson <hermes@gibson.dropbear.id.au>, et al)
Linux Tulip driver version 1.1.14 (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21142/43 Tulip rev 65 at Port 0x1000, 00:30:6E:48:AA:64, IRQ 65.
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip1:  Index #1 - Media 10base2 (#1) described by a 21142 Serial PHY (2) block.
tulip1:  Index #2 - Media AUI (#2) described by a 21142 Serial PHY (2) block.
tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.
tulip1:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth1: Digital DS21142/43 Tulip rev 33 at Port 0x28000, 00:60:B0:7A:12:89, IRQ 71.
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
NS87415: IDE controller at PCI slot 0000:00:0e.0
NS87415: chipset revision 3
NS87415: 100% native mode on irq 7
    ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:DMA, hdb:DMA
    ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:DMA, hdd:DMA
Probing IDE interface ide0...
hda: CD-532E-B, ATAPI CD/DVD-ROM drive
ide0 at 0xf00-0xf07,0xe02 on irq 7
Probing IDE interface ide1...
Probing IDE interface ide1...
hda: ATAPI 32X CD-ROM drive, 128kB Cache
Uniform CD-ROM driver Revision: 3.20
sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 68
sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
sym0: SCSI BUS mode change from SE to SE.
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
sym1: <896> rev 0x7 at pci 0000:00:0f.1 irq 68
sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.2.3
scsi 1:0:5:0: Direct-Access     SEAGATE  ST39102LC        HP01 PQ: 0 ANSI: 2
 target1:0:5: tagged command queuing enabled, command queue depth 16.
 target1:0:5: Beginning Domain Validation
 target1:0:5: asynchronous
 target1:0:5: wide asynchronous
 target1:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 15)
 target1:0:5: Domain Validation skipping write tests
 target1:0:5: Ending Domain Validation
scsi 1:0:6:0: Direct-Access     HP 36.4G ST336607LC       HPC3 PQ: 0 ANSI: 3
 target1:0:6: tagged command queuing enabled, command queue depth 16.
 target1:0:6: Beginning Domain Validation
 target1:0:6: asynchronous
 target1:0:6: wide asynchronous
 target1:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
 target1:0:6: Domain Validation skipping write tests
 target1:0:6: Ending Domain Validation
st: Version 20061107, fixed bufsize 32768, s/g segs 256
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
sda: Write Protect is off
sda: Mode Sense: 9f 00 10 08
SCSI device sda: write cache: disabled, read cache: enabled, supports DPO and FUA
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
sda: Write Protect is off
sda: Mode Sense: 9f 00 10 08
SCSI device sda: write cache: disabled, read cache: enabled, supports DPO and FUA
 sda: sda1 sda2 sda3 sda4
sd 1:0:5:0: Attached scsi disk sda
SCSI device sdb: 71132960 512-byte hdwr sectors (36420 MB)
sdb: Write Protect is off
sdb: Mode Sense: d3 00 10 08
SCSI device sdb: write cache: disabled, read cache: enabled, supports DPO and FUA
SCSI device sdb: 71132960 512-byte hdwr sectors (36420 MB)
sdb: Write Protect is off
sdb: Mode Sense: d3 00 10 08
SCSI device sdb: write cache: disabled, read cache: enabled, supports DPO and FUA
 sdb: sdb1 sdb2 sdb3 sdb4
sd 1:0:6:0: Attached scsi disk sdb
sd 1:0:5:0: Attached scsi generic sg0 type 0
sd 1:0:6:0: Attached scsi generic sg1 type 0
usbmon: debugfs is not available
ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci_hcd 0000:00:0e.2: OHCI Host Controller
ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:0e.2: irq 1, io mem 0xf2007000
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
USB Universal Host Controller Interface driver v3.0
usb 1-1: new low speed USB device using ohci_hcd and address 2
usb 1-1: configuration #1 chosen from 1 choice
usb 1-2: new low speed USB device using ohci_hcd and address 3
usb 1-2: configuration #1 chosen from 1 choice
input: Logitech N48 as /class/input/input0
input: USB HID v1.00 Mouse [Logitech N48] on usb-0000:00:0e.2-1
input: SILITEK USB Keyboard and Mouse as /class/input/input1
input: USB HID v1.00 Keyboard [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-2
input: SILITEK USB Keyboard and Mouse as /class/input/input2
input: USB HID v1.00 Mouse [SILITEK USB Keyboard and Mouse] on usb-0000:00:0e.2-2
usbcore: registered new interface driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
mice: PS/2 mouse device common for all mice
rtc-test rtc-test.0: rtc core: registered test as rtc0
rtc-test rtc-test.1: rtc core: registered test as rtc1
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
md: raid10 personality registered for level 10
raid6: int32x1    308 MB/s
raid6: int32x2    389 MB/s
raid6: int32x4    469 MB/s
raid6: int32x8    467 MB/s
raid6: using algorithm int32x4 (469 MB/s)
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
raid5: measuring checksumming speed
   8regs     :  1821.000 MB/sec
   8regs_prefetch:  1727.000 MB/sec
   32regs    :  1443.000 MB/sec
   32regs_prefetch:  1436.000 MB/sec
raid5: using function: 8regs (1821.000 MB/sec)
device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-devel@redhat.com
TCP cubic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
rtc-test rtc-test.0: setting the system clock to 2006-12-27 18:36:35 (1167244595)
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 192.168.178.50, my address is 192.168.178.70
IP-Config: Complete:
      device=eth0, addr=192.168.178.70, mask=255.255.255.0, gw=192.168.178.1,
     host=c3000, domain=box, nis-domain=(none),
     bootserver=192.168.178.50, rootserver=192.168.178.50, rootpath=
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 368k freed
eth0: Setting full-duplex based on MII#1 link partner capability of 05e1.
Adding 263144k swap on /dev/sda1.  Priority:-1 extents:1 across:263144k
Adding 1953784k swap on /dev/sdb3.  Priority:-2 extents:1 across:1953784k
EXT3 FS on sda3, internal journal
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sdb2, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sdb4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
hald-probe-stor(1803): unaligned access to 0xfb23bd26 at ip=0x00013fc3
hald-probe-stor(1803): unaligned access to 0xfb23bd2a at ip=0x00013fc3
hald-probe-stor(1803): unaligned access to 0xfb23bd36 at ip=0x00013fc3
hald-probe-stor(1803): unaligned access to 0xfb23bd3a at ip=0x00013fc3
hald-probe-stor(1803): unaligned access to 0xfb23bd56 at ip=0x00013fc3
hald-probe-stor(1803): unaligned access to 0xfb23bd5a at ip=0x00013fc3
hald-probe-volu(1804): unaligned access to 0xfb011c26 at ip=0x00014be7
hald-probe-volu(1804): unaligned access to 0xfb011c2a at ip=0x00014be7

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Subject: Re: [parisc-linux] fstatat64 and newfstatat syscalls
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Xref: news.gmane.org gmane.linux.ports.parisc:24175

On Sun Dec 24 2006, Grant Grundler wrote:
> On Sat, Dec 23, 2006 at 12:54:34AM +0100, Helge Deller wrote:
> > On Sat Dec 23 2006, Helge Deller wrote:
> > > Hi Grant,
> > > 
> > > I think we have some wrong assignments with above $TOPIC syscalls.
> > > 
> > > I found this mail and CVS patch from you:
> > > http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2006-February/036543.html
> 
> Yeah - I wasn't that confident in that change.  My main goal was to get the build
> working again. I didn't have any way to prove it was correct.
> 
> > > http://cvs.parisc-linux.org/linux-2.6/arch/parisc/kernel/syscall_table.S.diff?cvsroot=&r1=1.22&r2=1.23
> > > 
> > > but currently we have:
> > > arch/parisc/kernel/syscall_table.S:		ENTRY_SAME(fstatat64)           /* 280 */
> > > while in:
> > > include/asm-parisc/unistd.h:			#define __NR_newfstatat         (__NR_Linux + 280)
> > 
> > I think the right solution is to change current line in unistd.h to this:
> > include/asm-parisc/unistd.h:			#define __NR_fstatat64         (__NR_Linux + 280)
> 
> Yeah. That looks better to me too.
> I suspect I assumed fstatat64 and newfsatat would be equivalent in all contexts.
> 
> > The fstatat testcase from LTP passes with then this change as well...
> 
> Excellent - thanks for fixing!

I just committed this change...

Helge
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Xref: news.gmane.org gmane.linux.ports.parisc:24176

Hello,

The following patch to glibc fixes an error which is triggered by the Linux Test Projects clone04 test, and was already mentioned and analyzed by Mike and Joel (see links to mail threads below).
The problem is, that if clone(<function>, <stack>, ...) is called and <function> or <stack> is NULL, then %r19 is restored from a location which wasn't initialized.
Something like this...
clone:
		if <function> == NULL goto .Lerror
		if <stack>== NULL goto .Lerror
		save_%r19_on_stack
		.....
.Lerror:	restore_%r19_from_stack  ##### <- may read from stack without %r19 having been saved here !
		goto __syscall_error

The patch below moves the "save_%r19_on_stack" part above the checks, so that "restore_%r19_from_stack" always reads the correct value.

Any takers to bring this patch into glibc ?

Helge

Original threads:
http://lists.parisc-linux.org/pipermail/parisc-linux/2006-January/028088.html
http://lists.parisc-linux.org/pipermail/parisc-linux/2006-March/028552.html
http://sourceware.org/ml/libc-alpha/2003-12/msg00120.html

PATCH:
--- ../glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S.org	2006-12-29 08:49:25.000000000 +0100
+++ ../glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S	2006-12-29 16:58:30.000000000 +0100
@@ -32,6 +32,11 @@
 ENTRY(__clone)
 	/* FIXME: I have no idea how profiling works on hppa. */
 
+	/* Save the PIC register. */
+#ifdef PIC
+	stw	%r19,-32(%sr0, %sp)	/* parent */
+#endif
+
 	/* Sanity check arguments.  */
 	comib,=  0,%arg0,.Lerror        /* no NULL function pointers */
 	ldi     -EINVAL,%ret0
@@ -42,11 +47,6 @@
 	stwm    %arg0,64(%arg1)
 	stw	%arg3,-60(%arg1)
 
-	/* Save the PIC register. */
-#ifdef PIC
-	stw	%r19,-32(%sr0, %sp)	/* parent */
-#endif

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Subject: [parisc-linux] timing bug in clone() ?
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Xref: news.gmane.org gmane.linux.ports.parisc:24177

Help !

I'm trying to find the reason, why the program below segfaults on parisc.
if you change the "#if 0" to "#if 1", then it works without segfaulting.

To me it seems we have some kind of race in the linux kernel, e.g.
thread exits, wants to notify parent, but parent hasn't returned from clone() call... ?!?

Any ideas ?

Helge


"strace -f ./clonebug" gives:
....
brk(0)                                  = 0x21000
brk(0x42000)                            = 0x42000
clone(Process 7980 attached
child_stack=0x21090, flags=|SIGCHLD) = 7980
[pid  7979] wait4(-1, Process 7979 suspended
 <unfinished ...>
[pid  7980] --- SIGSEGV (Segmentation fault) @ 0 (0) ---
Process 7979 resumed
Process 7980 detached
<... wait4 resumed> NULL, 0, NULL)      = 7980
--- SIGCHLD (Child exited) @ 0 (0) ---
exit_group(0)                           = ?
Process 7979 detached




---------------------------------------------------------------------------
clonebug.c:
---------------------------------------------------------------------------
/* excerpt of clone07.c from Linux Test Project */
#include <sched.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <stdlib.h>
#include <unistd.h>

/* This test (clone07) checks, if a "return 0" in a child process suceeds without crashing */
/* Unfortunately, we crash not because of the "return 0", but due to some timimig/signalling problems ?? */

static int do_child(void *arg)
{
#if 0  /* program SIGSEGVs if you turn this to "0" */
	sleep(1);
#endif
	return 0; /* clone07 checks, if a "return 0" in a child process suceeds without crashing */
}

int main(int ac, char **av)
{
	int child_pid;
	void *child_stack = (void*)malloc(1000);	/* stack for child */
    	
	child_pid = clone(do_child, child_stack, SIGCHLD, NULL);
	wait(NULL);

	return 0;
}
---------------------------------------------------------------------------
_______________________________________________
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Subject: [parisc-linux] [patch] remove MAX_ARG_PAGES
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Cc: Andrew Morton <akpm@osdl.org>,
 linux-arch@vger.kernel.org,
 Peter Zijlstra <a.p.zijlstra@chello.nl>,
 Andi Kleen <ak@muc.de>,
 linux-kernel@vger.kernel.org,
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To: Ollie Wild <aaw@google.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:24178


FYI, i have forward ported your MAX_ARG_PAGES limit removal patch to 
2.6.20-rc2 and have included it in the -rt kernel. It's working great - 
i can now finally do a "ls -t patches/*.patch" in my patch repository - 
something i havent been able to do for years ;-)

what is keeping this fix from going upstream?

	Ingo

-------------->
Subject: [patch] remove MAX_ARG_PAGES
From: Ollie Wild <aaw@google.com>

this patch removes the MAX_ARG_PAGES limit by copying between VMs. This 
makes process argv/env limited by the stack limit (and it's thus 
arbitrarily sizable). No more:

  -bash: /bin/ls: Argument list too long

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86_64/ia32/ia32_binfmt.c |   55 -----
 fs/binfmt_elf.c                |   12 -
 fs/binfmt_misc.c               |    4 
 fs/binfmt_script.c             |    4 
 fs/compat.c                    |  118 ++++--------
 fs/exec.c                      |  382 +++++++++++++++++++----------------------
 include/linux/binfmts.h        |   14 -
 include/linux/mm.h             |    7 
 kernel/auditsc.c               |    5 
 mm/mprotect.c                  |    2 
 mm/mremap.c                    |    2 
 11 files changed, 250 insertions(+), 355 deletions(-)

Index: linux/arch/x86_64/ia32/ia32_binfmt.c
===================================================================
--- linux.orig/arch/x86_64/ia32/ia32_binfmt.c
+++ linux/arch/x86_64/ia32/ia32_binfmt.c
@@ -279,9 +279,6 @@ do {							\
 #define load_elf_binary load_elf32_binary
 
 #define ELF_PLAT_INIT(r, load_addr)	elf32_init(r)
-#define setup_arg_pages(bprm, stack_top, exec_stack) \
-	ia32_setup_arg_pages(bprm, stack_top, exec_stack)
-int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top, int executable_stack);
 
 #undef start_thread
 #define start_thread(regs,new_rip,new_rsp) do { \
@@ -336,57 +333,7 @@ static void elf32_init(struct pt_regs *r
 int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top,
 			 int executable_stack)
 {
-	unsigned long stack_base;
-	struct vm_area_struct *mpnt;
-	struct mm_struct *mm = current->mm;
-	int i, ret;
-
-	stack_base = stack_top - MAX_ARG_PAGES * PAGE_SIZE;
-	mm->arg_start = bprm->p + stack_base;
-
-	bprm->p += stack_base;
-	if (bprm->loader)
-		bprm->loader += stack_base;
-	bprm->exec += stack_base;
-
-	mpnt = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
-	if (!mpnt) 
-		return -ENOMEM; 
-
-	memset(mpnt, 0, sizeof(*mpnt));
-
-	down_write(&mm->mmap_sem);
-	{
-		mpnt->vm_mm = mm;
-		mpnt->vm_start = PAGE_MASK & (unsigned long) bprm->p;
-		mpnt->vm_end = stack_top;
-		if (executable_stack == EXSTACK_ENABLE_X)
-			mpnt->vm_flags = VM_STACK_FLAGS |  VM_EXEC;
-		else if (executable_stack == EXSTACK_DISABLE_X)
-			mpnt->vm_flags = VM_STACK_FLAGS & ~VM_EXEC;
-		else
-			mpnt->vm_flags = VM_STACK_FLAGS;
- 		mpnt->vm_page_prot = (mpnt->vm_flags & VM_EXEC) ? 
- 			PAGE_COPY_EXEC : PAGE_COPY;
-		if ((ret = insert_vm_struct(mm, mpnt))) {
-			up_write(&mm->mmap_sem);
-			kmem_cache_free(vm_area_cachep, mpnt);
-			return ret;
-		}
-		mm->stack_vm = mm->total_vm = vma_pages(mpnt);
-	} 
-
-	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
-		struct page *page = bprm->page[i];
-		if (page) {
-			bprm->page[i] = NULL;
-			install_arg_page(mpnt, page, stack_base);
-		}
-		stack_base += PAGE_SIZE;
-	}
-	up_write(&mm->mmap_sem);
-	
-	return 0;
+	return setup_arg_pages(bprm, stack_top, executable_stack);
 }
 EXPORT_SYMBOL(ia32_setup_arg_pages);
 
Index: linux/fs/binfmt_elf.c
===================================================================
--- linux.orig/fs/binfmt_elf.c
+++ linux/fs/binfmt_elf.c
@@ -253,8 +253,8 @@ create_elf_tables(struct linux_binprm *b
 		size_t len;
 		if (__put_user((elf_addr_t)p, argv++))
 			return -EFAULT;
-		len = strnlen_user((void __user *)p, PAGE_SIZE*MAX_ARG_PAGES);
-		if (!len || len > PAGE_SIZE*MAX_ARG_PAGES)
+		len = strnlen_user((void __user *)p, MAX_ARG_STRLEN);
+		if (!len || len > MAX_ARG_STRLEN)
 			return 0;
 		p += len;
 	}
@@ -265,8 +265,8 @@ create_elf_tables(struct linux_binprm *b
 		size_t len;
 		if (__put_user((elf_addr_t)p, envp++))
 			return -EFAULT;
-		len = strnlen_user((void __user *)p, PAGE_SIZE*MAX_ARG_PAGES);
-		if (!len || len > PAGE_SIZE*MAX_ARG_PAGES)
+		len = strnlen_user((void __user *)p, MAX_ARG_STRLEN);
+		if (!len || len > MAX_ARG_STRLEN)
 			return 0;
 		p += len;
 	}
@@ -767,10 +767,6 @@ static int load_elf_binary(struct linux_
 	}
 
 	/* OK, This is the point of no return */
-	current->mm->start_data = 0;
-	current->mm->end_data = 0;
-	current->mm->end_code = 0;
-	current->mm->mmap = NULL;
 	current->flags &= ~PF_FORKNOEXEC;
 	current->mm->def_flags = def_flags;
 
Index: linux/fs/binfmt_misc.c
===================================================================
--- linux.orig/fs/binfmt_misc.c
+++ linux/fs/binfmt_misc.c
@@ -126,7 +126,9 @@ static int load_misc_binary(struct linux
 		goto _ret;
 
 	if (!(fmt->flags & MISC_FMT_PRESERVE_ARGV0)) {
-		remove_arg_zero(bprm);
+		retval = remove_arg_zero(bprm);
+		if (retval)
+			goto _ret;
 	}
 
 	if (fmt->flags & MISC_FMT_OPEN_BINARY) {
Index: linux/fs/binfmt_script.c
===================================================================
--- linux.orig/fs/binfmt_script.c
+++ linux/fs/binfmt_script.c
@@ -68,7 +68,9 @@ static int load_script(struct linux_binp
 	 * This is done in reverse order, because of how the
 	 * user environment and arguments are stored.
 	 */
-	remove_arg_zero(bprm);
+	retval = remove_arg_zero(bprm);
+	if (retval)
+		return retval;
 	retval = copy_strings_kernel(1, &bprm->interp, bprm);
 	if (retval < 0) return retval; 
 	bprm->argc++;
Index: linux/fs/compat.c
===================================================================
--- linux.orig/fs/compat.c
+++ linux/fs/compat.c
@@ -1389,6 +1389,7 @@ static int compat_copy_strings(int argc,
 {
 	struct page *kmapped_page = NULL;
 	char *kaddr = NULL;
+	unsigned long kpos = 0;
 	int ret;
 
 	while (argc-- > 0) {
@@ -1397,92 +1398,72 @@ static int compat_copy_strings(int argc,
 		unsigned long pos;
 
 		if (get_user(str, argv+argc) ||
-			!(len = strnlen_user(compat_ptr(str), bprm->p))) {
+		    !(len = strnlen_user(compat_ptr(str), MAX_ARG_STRLEN))) {
 			ret = -EFAULT;
 			goto out;
 		}
 
-		if (bprm->p < len)  {
+		if (MAX_ARG_STRLEN < len) {
 			ret = -E2BIG;
 			goto out;
 		}
 
-		bprm->p -= len;
-		/* XXX: add architecture specific overflow check here. */
+		/* We're going to work our way backwords. */
 		pos = bprm->p;
+		str += len;
+		bprm->p -= len;
 
 		while (len > 0) {
-			int i, new, err;
 			int offset, bytes_to_copy;
-			struct page *page;
 
 			offset = pos % PAGE_SIZE;
-			i = pos/PAGE_SIZE;
-			page = bprm->page[i];
-			new = 0;
-			if (!page) {
-				page = alloc_page(GFP_HIGHUSER);
-				bprm->page[i] = page;
-				if (!page) {
-					ret = -ENOMEM;
+			if (offset == 0)
+				offset = PAGE_SIZE;
+
+			bytes_to_copy = offset;
+			if (bytes_to_copy > len)
+				bytes_to_copy = len;
+
+			offset -= bytes_to_copy;
+			pos -= bytes_to_copy;
+			str -= bytes_to_copy;
+			len -= bytes_to_copy;
+
+			if (!kmapped_page || kpos != (pos & PAGE_MASK)) {
+				struct page *page;
+
+				ret = get_user_pages(current, bprm->mm, pos,
+						     1, 1, 1, &page, NULL);
+				if (ret <= 0) {
+					/* We've exceed the stack rlimit. */
+					ret = -E2BIG;
 					goto out;
 				}
-				new = 1;
-			}
 
-			if (page != kmapped_page) {
-				if (kmapped_page)
+				if (kmapped_page) {
 					kunmap(kmapped_page);
+					put_page(kmapped_page);
+				}
 				kmapped_page = page;
 				kaddr = kmap(kmapped_page);
+				kpos = pos & PAGE_MASK;
 			}
-			if (new && offset)
-				memset(kaddr, 0, offset);
-			bytes_to_copy = PAGE_SIZE - offset;
-			if (bytes_to_copy > len) {
-				bytes_to_copy = len;
-				if (new)
-					memset(kaddr+offset+len, 0,
-						PAGE_SIZE-offset-len);
-			}
-			err = copy_from_user(kaddr+offset, compat_ptr(str),
-						bytes_to_copy);
-			if (err) {
+			if (copy_from_user(kaddr+offset, compat_ptr(str),
+						bytes_to_copy)) {
 				ret = -EFAULT;
 				goto out;
 			}
-
-			pos += bytes_to_copy;
-			str += bytes_to_copy;
-			len -= bytes_to_copy;
 		}
 	}
 	ret = 0;
 out:
-	if (kmapped_page)
+	if (kmapped_page) {
 		kunmap(kmapped_page);
-	return ret;
-}
-
-#ifdef CONFIG_MMU
-
-#define free_arg_pages(bprm) do { } while (0)
-
-#else
-
-static inline void free_arg_pages(struct linux_binprm *bprm)
-{
-	int i;
-
-	for (i = 0; i < MAX_ARG_PAGES; i++) {
-		if (bprm->page[i])
-			__free_page(bprm->page[i]);
-		bprm->page[i] = NULL;
+		put_page(kmapped_page);
 	}
+	return ret;
 }
 
-#endif /* CONFIG_MMU */
-
 /*
  * compat_do_execve() is mostly a copy of do_execve(), with the exception
  * that it processes 32 bit argv and envp pointers.
@@ -1495,7 +1476,6 @@ int compat_do_execve(char * filename,
 	struct linux_binprm *bprm;
 	struct file *file;
 	int retval;
-	int i;
 
 	retval = -ENOMEM;
 	bprm = kzalloc(sizeof(*bprm), GFP_KERNEL);
@@ -1509,24 +1489,19 @@ int compat_do_execve(char * filename,
 
 	sched_exec();
 
-	bprm->p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
 	bprm->file = file;
 	bprm->filename = filename;
 	bprm->interp = filename;
-	bprm->mm = mm_alloc();
-	retval = -ENOMEM;
-	if (!bprm->mm)
-		goto out_file;
 
-	retval = init_new_context(current, bprm->mm);
-	if (retval < 0)
-		goto out_mm;
+	retval = bprm_mm_init(bprm);
+	if (retval)
+		goto out_file;
 
-	bprm->argc = compat_count(argv, bprm->p / sizeof(compat_uptr_t));
+	bprm->argc = compat_count(argv, MAX_ARG_STRINGS);
 	if ((retval = bprm->argc) < 0)
 		goto out_mm;
 
-	bprm->envc = compat_count(envp, bprm->p / sizeof(compat_uptr_t));
+	bprm->envc = compat_count(envp, MAX_ARG_STRINGS);
 	if ((retval = bprm->envc) < 0)
 		goto out_mm;
 
@@ -1551,10 +1526,8 @@ int compat_do_execve(char * filename,
 	if (retval < 0)
 		goto out;
 
-	retval = search_binary_handler(bprm, regs);
+	retval = search_binary_handler(bprm,regs);
 	if (retval >= 0) {
-		free_arg_pages(bprm);
-
 		/* execve success */
 		security_bprm_free(bprm);
 		acct_update_integrals(current);
@@ -1563,19 +1536,12 @@ int compat_do_execve(char * filename,
 	}
 
 out:
-	/* Something went wrong, return the inode and free the argument pages*/
-	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
-		struct page * page = bprm->page[i];
-		if (page)
-			__free_page(page);
-	}
-
 	if (bprm->security)
 		security_bprm_free(bprm);
 
 out_mm:
 	if (bprm->mm)
-		mmdrop(bprm->mm);
+		mmput (bprm->mm);
 
 out_file:
 	if (bprm->file) {
Index: linux/fs/exec.c
===================================================================
--- linux.orig/fs/exec.c
+++ linux/fs/exec.c
@@ -174,6 +174,79 @@ exit:
 	goto out;
 }
 
+#ifdef CONFIG_STACK_GROWSUP
+#error	I broke your build because I rearchitected the stack code, and I \
+	don't have access to an architecture where CONFIG_STACK_GROWSUP is \
+	set.  Please fixe this or send me a machine which I can test this on. \
+	\
+	-- Ollie Wild <aaw@google.com>
+#endif
+
+/* Create a new mm_struct and populate it with a temporary stack
+ * vm_area_struct.  We don't have enough context at this point to set the
+ * stack flags, permissions, and offset, so we use temporary values.  We'll
+ * update them later in setup_arg_pages(). */
+int bprm_mm_init(struct linux_binprm *bprm)
+{
+	int err;
+	struct mm_struct *mm = NULL;
+	struct vm_area_struct *vma = NULL;
+
+	bprm->mm = mm = mm_alloc();
+	err = -ENOMEM;
+	if (!mm)
+		goto err;
+
+	if ((err = init_new_context(current, mm)))
+		goto err;
+
+	bprm->vma = vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+	err = -ENOMEM;
+	if (!vma)
+		goto err;
+
+	down_write(&mm->mmap_sem);
+	{
+		vma->vm_mm = mm;
+
+		/* Place the stack at the top of user memory.  Later, we'll
+		 * move this to an appropriate place.  We don't use STACK_TOP
+		 * because that can depend on attributes which aren't
+		 * configured yet. */
+		vma->vm_end = TASK_SIZE;
+		vma->vm_start = vma->vm_end - PAGE_SIZE;
+
+		vma->vm_flags = VM_STACK_FLAGS;
+		vma->vm_page_prot = protection_map[vma->vm_flags & 0x7];
+		if ((err = insert_vm_struct(mm, vma))) {
+			up_write(&mm->mmap_sem);
+			goto err;
+		}
+
+		mm->stack_vm = mm->total_vm = 1;
+	}
+	up_write(&mm->mmap_sem);
+
+	bprm->p = vma->vm_end - sizeof(void *);
+
+	return 0;
+
+err:
+	if (vma) {
+		bprm->vma = NULL;
+		kmem_cache_free(vm_area_cachep, vma);
+	}
+
+	if (mm) {
+		bprm->mm = NULL;
+		mmdrop(mm);
+	}
+
+	return err;
+}
+
+EXPORT_SYMBOL(bprm_mm_init);
+
 /*
  * count() counts the number of strings in array ARGV.
  */
@@ -199,15 +272,16 @@ static int count(char __user * __user * 
 }
 
 /*
- * 'copy_strings()' copies argument/environment strings from user
- * memory to free pages in kernel mem. These are in a format ready
- * to be put directly into the top of new user memory.
+ * 'copy_strings()' copies argument/environment strings from the old
+ * processes's memory to the new process's stack.  The call to get_user_pages()
+ * ensures the destination page is created and not swapped out.
  */
 static int copy_strings(int argc, char __user * __user * argv,
 			struct linux_binprm *bprm)
 {
 	struct page *kmapped_page = NULL;
 	char *kaddr = NULL;
+	unsigned long kpos = 0;
 	int ret;
 
 	while (argc-- > 0) {
@@ -216,69 +290,68 @@ static int copy_strings(int argc, char _
 		unsigned long pos;
 
 		if (get_user(str, argv+argc) ||
-				!(len = strnlen_user(str, bprm->p))) {
+				!(len = strnlen_user(str, MAX_ARG_STRLEN))) {
 			ret = -EFAULT;
 			goto out;
 		}
 
-		if (bprm->p < len)  {
+		if (MAX_ARG_STRLEN < len) {
 			ret = -E2BIG;
 			goto out;
 		}
 
-		bprm->p -= len;
-		/* XXX: add architecture specific overflow check here. */
+		/* We're going to work our way backwords. */
 		pos = bprm->p;
+		str += len;
+		bprm->p -= len;
 
 		while (len > 0) {
-			int i, new, err;
 			int offset, bytes_to_copy;
-			struct page *page;
 
 			offset = pos % PAGE_SIZE;
-			i = pos/PAGE_SIZE;
-			page = bprm->page[i];
-			new = 0;
-			if (!page) {
-				page = alloc_page(GFP_HIGHUSER);
-				bprm->page[i] = page;
-				if (!page) {
-					ret = -ENOMEM;
+			if (offset == 0)
+				offset = PAGE_SIZE;
+
+			bytes_to_copy = offset;
+			if (bytes_to_copy > len)
+				bytes_to_copy = len;
+
+			offset -= bytes_to_copy;
+			pos -= bytes_to_copy;
+			str -= bytes_to_copy;
+			len -= bytes_to_copy;
+
+			if (!kmapped_page || kpos != (pos & PAGE_MASK)) {
+				struct page *page;
+
+				ret = get_user_pages(current, bprm->mm, pos,
+						     1, 1, 1, &page, NULL);
+				if (ret <= 0) {
+					/* We've exceed the stack rlimit. */
+					ret = -E2BIG;
 					goto out;
 				}
-				new = 1;
-			}
 
-			if (page != kmapped_page) {
-				if (kmapped_page)
+				if (kmapped_page) {
 					kunmap(kmapped_page);
+					put_page(kmapped_page);
+				}
 				kmapped_page = page;
 				kaddr = kmap(kmapped_page);
+				kpos = pos & PAGE_MASK;
 			}
-			if (new && offset)
-				memset(kaddr, 0, offset);
-			bytes_to_copy = PAGE_SIZE - offset;
-			if (bytes_to_copy > len) {
-				bytes_to_copy = len;
-				if (new)
-					memset(kaddr+offset+len, 0,
-						PAGE_SIZE-offset-len);
-			}
-			err = copy_from_user(kaddr+offset, str, bytes_to_copy);
-			if (err) {
+			if (copy_from_user(kaddr+offset, str, bytes_to_copy)) {
 				ret = -EFAULT;
 				goto out;
 			}
-
-			pos += bytes_to_copy;
-			str += bytes_to_copy;
-			len -= bytes_to_copy;
 		}
 	}
 	ret = 0;
 out:
-	if (kmapped_page)
+	if (kmapped_page) {
 		kunmap(kmapped_page);
+		put_page(kmapped_page);
+	}
 	return ret;
 }
 
@@ -297,157 +370,79 @@ int copy_strings_kernel(int argc,char **
 
 EXPORT_SYMBOL(copy_strings_kernel);
 
-#ifdef CONFIG_MMU
-/*
- * This routine is used to map in a page into an address space: needed by
- * execve() for the initial stack and environment pages.
- *
- * vma->vm_mm->mmap_sem is held for writing.
- */
-void install_arg_page(struct vm_area_struct *vma,
-			struct page *page, unsigned long address)
-{
-	struct mm_struct *mm = vma->vm_mm;
-	pte_t * pte;
-	spinlock_t *ptl;
-
-	if (unlikely(anon_vma_prepare(vma)))
-		goto out;
-
-	flush_dcache_page(page);
-	pte = get_locked_pte(mm, address, &ptl);
-	if (!pte)
-		goto out;
-	if (!pte_none(*pte)) {
-		pte_unmap_unlock(pte, ptl);
-		goto out;
-	}
-	inc_mm_counter(mm, anon_rss);
-	lru_cache_add_active(page);
-	set_pte_at(mm, address, pte, pte_mkdirty(pte_mkwrite(mk_pte(
-					page, vma->vm_page_prot))));
-	page_add_new_anon_rmap(page, vma, address);
-	pte_unmap_unlock(pte, ptl);
-
-	/* no need for flush_tlb */
-	return;
-out:
-	__free_page(page);
-	force_sig(SIGKILL, current);
-}
-
 #define EXTRA_STACK_VM_PAGES	20	/* random */
 
+/* Finalizes the stack vm_area_struct.  The flags and permissions are updated,
+ * the stack is optionally relocated, and some extra space is added.
+ */
 int setup_arg_pages(struct linux_binprm *bprm,
 		    unsigned long stack_top,
 		    int executable_stack)
 {
-	unsigned long stack_base;
-	struct vm_area_struct *mpnt;
+	unsigned long ret;
+	unsigned long stack_base, stack_shift;
 	struct mm_struct *mm = current->mm;
-	int i, ret;
-	long arg_size;
 
-#ifdef CONFIG_STACK_GROWSUP
-	/* Move the argument and environment strings to the bottom of the
-	 * stack space.
-	 */
-	int offset, j;
-	char *to, *from;
+	BUG_ON(stack_top > TASK_SIZE);
+	BUG_ON(stack_top & ~PAGE_MASK);
 
-	/* Start by shifting all the pages down */
-	i = 0;
-	for (j = 0; j < MAX_ARG_PAGES; j++) {
-		struct page *page = bprm->page[j];
-		if (!page)
-			continue;
-		bprm->page[i++] = page;
-	}
-
-	/* Now move them within their pages */
-	offset = bprm->p % PAGE_SIZE;
-	to = kmap(bprm->page[0]);
-	for (j = 1; j < i; j++) {
-		memmove(to, to + offset, PAGE_SIZE - offset);
-		from = kmap(bprm->page[j]);
-		memcpy(to + PAGE_SIZE - offset, from, offset);
-		kunmap(bprm->page[j - 1]);
-		to = from;
-	}
-	memmove(to, to + offset, PAGE_SIZE - offset);
-	kunmap(bprm->page[j - 1]);
-
-	/* Limit stack size to 1GB */
-	stack_base = current->signal->rlim[RLIMIT_STACK].rlim_max;
-	if (stack_base > (1 << 30))
-		stack_base = 1 << 30;
-	stack_base = PAGE_ALIGN(stack_top - stack_base);
-
-	/* Adjust bprm->p to point to the end of the strings. */
-	bprm->p = stack_base + PAGE_SIZE * i - offset;
-
-	mm->arg_start = stack_base;
-	arg_size = i << PAGE_SHIFT;
-
-	/* zero pages that were copied above */
-	while (i < MAX_ARG_PAGES)
-		bprm->page[i++] = NULL;
-#else
-	stack_base = arch_align_stack(stack_top - MAX_ARG_PAGES*PAGE_SIZE);
+	stack_base = arch_align_stack(stack_top - mm->stack_vm*PAGE_SIZE);
 	stack_base = PAGE_ALIGN(stack_base);
-	bprm->p += stack_base;
-	mm->arg_start = bprm->p;
-	arg_size = stack_top - (PAGE_MASK & (unsigned long) mm->arg_start);
-#endif
 
-	arg_size += EXTRA_STACK_VM_PAGES * PAGE_SIZE;
+	stack_shift = (bprm->p & PAGE_MASK) - stack_base;
+	BUG_ON(stack_shift < 0);
+	bprm->p -= stack_shift;
+	mm->arg_start = bprm->p;
 
 	if (bprm->loader)
-		bprm->loader += stack_base;
-	bprm->exec += stack_base;
-
-	mpnt = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
-	if (!mpnt)
-		return -ENOMEM;
-
-	memset(mpnt, 0, sizeof(*mpnt));
+		bprm->loader -= stack_shift;
+	bprm->exec -= stack_shift;
 
 	down_write(&mm->mmap_sem);
 	{
-		mpnt->vm_mm = mm;
-#ifdef CONFIG_STACK_GROWSUP
-		mpnt->vm_start = stack_base;
-		mpnt->vm_end = stack_base + arg_size;
-#else
-		mpnt->vm_end = stack_top;
-		mpnt->vm_start = mpnt->vm_end - arg_size;
-#endif
+		struct vm_area_struct *vma = bprm->vma;
+		struct vm_area_struct *prev = NULL;
+		unsigned long vm_flags = vma->vm_flags;
+
 		/* Adjust stack execute permissions; explicitly enable
 		 * for EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X
 		 * and leave alone (arch default) otherwise. */
 		if (unlikely(executable_stack == EXSTACK_ENABLE_X))
-			mpnt->vm_flags = VM_STACK_FLAGS |  VM_EXEC;
+			vm_flags |= VM_EXEC;
 		else if (executable_stack == EXSTACK_DISABLE_X)
-			mpnt->vm_flags = VM_STACK_FLAGS & ~VM_EXEC;
-		else
-			mpnt->vm_flags = VM_STACK_FLAGS;
-		mpnt->vm_flags |= mm->def_flags;
-		mpnt->vm_page_prot = protection_map[mpnt->vm_flags & 0x7];
-		if ((ret = insert_vm_struct(mm, mpnt))) {
+			vm_flags &= ~VM_EXEC;
+		vm_flags |= mm->def_flags;
+
+		ret = mprotect_fixup(vma, &prev, vma->vm_start, vma->vm_end,
+				vm_flags);
+		if (ret) {
 			up_write(&mm->mmap_sem);
-			kmem_cache_free(vm_area_cachep, mpnt);
 			return ret;
 		}
-		mm->stack_vm = mm->total_vm = vma_pages(mpnt);
-	}
+		BUG_ON(prev != vma);
+
+		/* Move stack pages down in memory. */
+		if (stack_shift) {
+			/* This should be safe even with overlap because we
+			 * are shifting down. */
+			ret = move_vma(vma, vma->vm_start,
+					vma->vm_end - vma->vm_start,
+					vma->vm_end - vma->vm_start,
+					vma->vm_start - stack_shift);
+			if (ret & ~PAGE_MASK) {
+				up_write(&mm->mmap_sem);
+				return ret;
+			}
+		}
 
-	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
-		struct page *page = bprm->page[i];
-		if (page) {
-			bprm->page[i] = NULL;
-			install_arg_page(mpnt, page, stack_base);
+		// Expand the stack.
+		vma = find_vma(mm, bprm->p);
+		BUG_ON(!vma || bprm->p < vma->vm_start);
+		if (expand_stack(vma, stack_base -
+					EXTRA_STACK_VM_PAGES * PAGE_SIZE)) {
+			up_write(&mm->mmap_sem);
+			return -EFAULT;
 		}
-		stack_base += PAGE_SIZE;
 	}
 	up_write(&mm->mmap_sem);
 	
@@ -456,23 +451,6 @@ int setup_arg_pages(struct linux_binprm 
 
 EXPORT_SYMBOL(setup_arg_pages);
 
-#define free_arg_pages(bprm) do { } while (0)
-
-#else
-
-static inline void free_arg_pages(struct linux_binprm *bprm)
-{
-	int i;
-
-	for (i = 0; i < MAX_ARG_PAGES; i++) {
-		if (bprm->page[i])
-			__free_page(bprm->page[i]);
-		bprm->page[i] = NULL;
-	}
-}
-
-#endif /* CONFIG_MMU */
-
 struct file *open_exec(const char *name)
 {
 	struct nameidata nd;
@@ -993,8 +971,10 @@ void compute_creds(struct linux_binprm *
 
 EXPORT_SYMBOL(compute_creds);
 
-void remove_arg_zero(struct linux_binprm *bprm)
+int remove_arg_zero(struct linux_binprm *bprm)
 {
+	int ret = 0;
+
 	if (bprm->argc) {
 		unsigned long offset;
 		char * kaddr;
@@ -1008,13 +988,23 @@ void remove_arg_zero(struct linux_binprm
 				continue;
 			offset = 0;
 			kunmap_atomic(kaddr, KM_USER0);
+			put_page(page);
 inside:
-			page = bprm->page[bprm->p/PAGE_SIZE];
+			ret = get_user_pages(current, bprm->mm, bprm->p,
+					     1, 0, 1, &page, NULL);
+			if (ret <= 0) {
+				ret = -EFAULT;
+				goto out;
+			}
 			kaddr = kmap_atomic(page, KM_USER0);
 		}
 		kunmap_atomic(kaddr, KM_USER0);
 		bprm->argc--;
+		ret = 0;
 	}
+
+out:
+	return ret;
 }
 
 EXPORT_SYMBOL(remove_arg_zero);
@@ -1041,7 +1031,7 @@ int search_binary_handler(struct linux_b
 		fput(bprm->file);
 		bprm->file = NULL;
 
-	        loader = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
+	        loader = bprm->vma->vm_end - sizeof(void *);
 
 		file = open_exec("/sbin/loader");
 		retval = PTR_ERR(file);
@@ -1134,7 +1124,6 @@ int do_execve(char * filename,
 	struct linux_binprm *bprm;
 	struct file *file;
 	int retval;
-	int i;
 
 	retval = -ENOMEM;
 	bprm = kzalloc(sizeof(*bprm), GFP_KERNEL);
@@ -1148,25 +1137,19 @@ int do_execve(char * filename,
 
 	sched_exec();
 
-	bprm->p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
-
 	bprm->file = file;
 	bprm->filename = filename;
 	bprm->interp = filename;
-	bprm->mm = mm_alloc();
-	retval = -ENOMEM;
-	if (!bprm->mm)
-		goto out_file;
 
-	retval = init_new_context(current, bprm->mm);
-	if (retval < 0)
-		goto out_mm;
+	retval = bprm_mm_init(bprm);
+	if (retval)
+		goto out_file;
 
-	bprm->argc = count(argv, bprm->p / sizeof(void *));
+	bprm->argc = count(argv, MAX_ARG_STRINGS);
 	if ((retval = bprm->argc) < 0)
 		goto out_mm;
 
-	bprm->envc = count(envp, bprm->p / sizeof(void *));
+	bprm->envc = count(envp, MAX_ARG_STRINGS);
 	if ((retval = bprm->envc) < 0)
 		goto out_mm;
 
@@ -1193,8 +1176,6 @@ int do_execve(char * filename,
 
 	retval = search_binary_handler(bprm,regs);
 	if (retval >= 0) {
-		free_arg_pages(bprm);
-
 		/* execve success */
 		security_bprm_free(bprm);
 		acct_update_integrals(current);
@@ -1203,19 +1184,12 @@ int do_execve(char * filename,
 	}
 
 out:
-	/* Something went wrong, return the inode and free the argument pages*/
-	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
-		struct page * page = bprm->page[i];
-		if (page)
-			__free_page(page);
-	}
-
 	if (bprm->security)
 		security_bprm_free(bprm);
 
 out_mm:
 	if (bprm->mm)
-		mmdrop(bprm->mm);
+		mmput (bprm->mm);
 
 out_file:
 	if (bprm->file) {
Index: linux/include/linux/binfmts.h
===================================================================
--- linux.orig/include/linux/binfmts.h
+++ linux/include/linux/binfmts.h
@@ -5,12 +5,9 @@
 
 struct pt_regs;
 
-/*
- * MAX_ARG_PAGES defines the number of pages allocated for arguments
- * and envelope for the new program. 32 should suffice, this gives
- * a maximum env+arg of 128kB w/4KB pages!
- */
-#define MAX_ARG_PAGES 32
+/* FIXME: Find real limits, or none. */
+#define MAX_ARG_STRLEN (PAGE_SIZE * 32)
+#define MAX_ARG_STRINGS 0x7FFFFFFF
 
 /* sizeof(linux_binprm->buf) */
 #define BINPRM_BUF_SIZE 128
@@ -22,7 +19,7 @@ struct pt_regs;
  */
 struct linux_binprm{
 	char buf[BINPRM_BUF_SIZE];
-	struct page *page[MAX_ARG_PAGES];
+	struct vm_area_struct *vma;
 	struct mm_struct *mm;
 	unsigned long p; /* current top of mem */
 	int sh_bang;
@@ -65,7 +62,7 @@ extern int register_binfmt(struct linux_
 extern int unregister_binfmt(struct linux_binfmt *);
 
 extern int prepare_binprm(struct linux_binprm *);
-extern void remove_arg_zero(struct linux_binprm *);
+extern int __must_check remove_arg_zero(struct linux_binprm *);
 extern int search_binary_handler(struct linux_binprm *,struct pt_regs *);
 extern int flush_old_exec(struct linux_binprm * bprm);
 
@@ -82,6 +79,7 @@ extern int suid_dumpable;
 extern int setup_arg_pages(struct linux_binprm * bprm,
 			   unsigned long stack_top,
 			   int executable_stack);
+extern int bprm_mm_init(struct linux_binprm *bprm);
 extern int copy_strings_kernel(int argc,char ** argv,struct linux_binprm *bprm);
 extern void compute_creds(struct linux_binprm *binprm);
 extern int do_coredump(long signr, int exit_code, struct pt_regs * regs);
Index: linux/include/linux/mm.h
===================================================================
--- linux.orig/include/linux/mm.h
+++ linux/include/linux/mm.h
@@ -775,7 +775,6 @@ static inline int handle_mm_fault(struct
 
 extern int make_pages_present(unsigned long addr, unsigned long end);
 extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write);
-void install_arg_page(struct vm_area_struct *, struct page *, unsigned long);
 
 int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, unsigned long start,
 		int len, int write, int force, struct page **pages, struct vm_area_struct **vmas);
@@ -791,9 +790,15 @@ int FASTCALL(set_page_dirty(struct page 
 int set_page_dirty_lock(struct page *page);
 int clear_page_dirty_for_io(struct page *page);
 
+extern unsigned long move_vma(struct vm_area_struct *vma,
+		unsigned long old_addr, unsigned long old_len,
+		unsigned long new_len, unsigned long new_addr);
 extern unsigned long do_mremap(unsigned long addr,
 			       unsigned long old_len, unsigned long new_len,
 			       unsigned long flags, unsigned long new_addr);
+extern int mprotect_fixup(struct vm_area_struct *vma,
+			  struct vm_area_struct **pprev, unsigned long start,
+			  unsigned long end, unsigned long newflags);
 
 /*
  * Prototype to add a shrinker callback for ageable caches.
Index: linux/kernel/auditsc.c
===================================================================
--- linux.orig/kernel/auditsc.c
+++ linux/kernel/auditsc.c
@@ -1755,6 +1755,10 @@ int __audit_ipc_set_perm(unsigned long q
 
 int audit_bprm(struct linux_binprm *bprm)
 {
+	/* FIXME: Don't do anything for now until I figure out how to handle
+	 * this.  With the latest changes, kmalloc could well fail under good
+	 * scenarios. */
+#if 0
 	struct audit_aux_data_execve *ax;
 	struct audit_context *context = current->audit_context;
 	unsigned long p, next;
@@ -1782,6 +1786,7 @@ int audit_bprm(struct linux_binprm *bprm
 	ax->d.type = AUDIT_EXECVE;
 	ax->d.next = context->aux;
 	context->aux = (void *)ax;
+#endif
 	return 0;
 }
 
Index: linux/mm/mprotect.c
===================================================================
--- linux.orig/mm/mprotect.c
+++ linux/mm/mprotect.c
@@ -128,7 +128,7 @@ static void change_protection(struct vm_
 	flush_tlb_range(vma, start, end);
 }
 
-static int
+int
 mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
 	unsigned long start, unsigned long end, unsigned long newflags)
 {
Index: linux/mm/mremap.c
===================================================================
--- linux.orig/mm/mremap.c
+++ linux/mm/mremap.c
@@ -155,7 +155,7 @@ static unsigned long move_page_tables(st
 	return len + old_addr - old_end;	/* how much done */
 }
 
-static unsigned long move_vma(struct vm_area_struct *vma,
+unsigned long move_vma(struct vm_area_struct *vma,
 		unsigned long old_addr, unsigned long old_len,
 		unsigned long new_len, unsigned long new_addr)
 {
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Xref: news.gmane.org gmane.linux.ports.parisc:24179

On Fri, Dec 29, 2006 at 09:03:57PM +0100, Ingo Molnar wrote:
> FYI, i have forward ported your MAX_ARG_PAGES limit removal patch to 
> 2.6.20-rc2 and have included it in the -rt kernel. It's working great - 
> i can now finally do a "ls -t patches/*.patch" in my patch repository - 
> something i havent been able to do for years ;-)

How do the various autoconf stuff react to this?  Eg, I notice the
following in various configure scripts:

checking the maximum length of command line arguments... 32768

Suggest you test (eg) a rebuild of libX11 to see how it reacts to
this patch.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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On Fri, 29 Dec 2006, Russell King wrote:
> 
> Suggest you test (eg) a rebuild of libX11 to see how it reacts to
> this patch.

Also: please rebuild "xargs" and install first. Otherwise, a lot of 
build script etc that use "xargs" won't ever trigger the new limits (or 
lack thereof), because xargs will have been installed with some old 
limits.

Perhaps more worrying is if compiling xargs under a new kernel then means 
that it won't work correctly under an old one.

		Linus
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From: Ingo Molnar <mingo@elte.hu>
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Subject: [parisc-linux] Re: [patch] remove MAX_ARG_PAGES
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* Russell King <rmk+lkml@arm.linux.org.uk> wrote:

> On Fri, Dec 29, 2006 at 09:03:57PM +0100, Ingo Molnar wrote:
> > FYI, i have forward ported your MAX_ARG_PAGES limit removal patch to 
> > 2.6.20-rc2 and have included it in the -rt kernel. It's working great - 
> > i can now finally do a "ls -t patches/*.patch" in my patch repository - 
> > something i havent been able to do for years ;-)
> 
> How do the various autoconf stuff react to this?  Eg, I notice the 
> following in various configure scripts:
> 
> checking the maximum length of command line arguments... 32768

yes, that's how libtool works, it goes from 32K downwards to figure out 
a maximum. I dont see a problem there.

you can find a few other variants at:

  http://www.google.com/codesearch?q=%22checking+the+maximum+length+of+command+line+arguments%22&hl=en&btnG=Search+Code

worst-case the test-command would get a segfault from the default stack 
limit. (8MB on Fedora)

	Ingo
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[Cc:-ed Ulrich too]

* Linus Torvalds <torvalds@osdl.org> wrote:

> On Fri, 29 Dec 2006, Russell King wrote:
> > 
> > Suggest you test (eg) a rebuild of libX11 to see how it reacts to 
> > this patch.
> 
> Also: please rebuild "xargs" and install first. Otherwise, a lot of 
> build script etc that use "xargs" won't ever trigger the new limits 
> (or lack thereof), because xargs will have been installed with some 
> old limits.

yeah, and i think the default chunking of xargs should still remain 
128K.

If it's fine for a script to get chunked input, and if the script has no 
security relevance (xargs is fundamentally unsafe if any portion of the 
VFS namespace it gets used is untrusted), then there's no problem for 
the xargs limit to stay at 128K.

> Perhaps more worrying is if compiling xargs under a new kernel then 
> means that it won't work correctly under an old one.

xargs has its limit hardcoded AFAICS, it's based on:

#define ARG_MAX       131072    /* # bytes of args + environ for exec() */

i'd not change that just yet. The sysconf(3) manpage says it's generally 
unreliable:

  BUGS
       It is difficult to use ARG_MAX because it is not specified how much  of
       the  argument  space  for  exec() is consumed by the user's environment
       variables.

but ... as it is with every limit, it is always possible to write an 
application that hardcodes a larger limit and then doesnt work when 
running with the lower limit. Would that have been a correct argument 
against say raising the user stack limit from the historic 1MB?

right now some of my (more stupid) scripts occasionally break if any 
random portion of my VFS namespace grows over the silly 128K limit. (and 
it rarely has the tendency to shrink, sadly) I think that is just as 
much of a legitimate problem as any naive newly written script not 
working on an older kernel on a huge VFS namespace. (in fact i could 
argue for it to be a more legitimate problem than other stupid scripts 
not being backwards compatible, not the least because it is a problem 
with /my/ scripts ;-)

we could try something like adding an ARG_MAX rlimit, but i think that 
would be overdoing it ... we could also do a sysctl as a global limit - 
equally pointless because distros will likely tweak it up anyway, and in 
any case neither measure really prevents the writing of stupid scripts.

	Ingo
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Helge Deller wrote:
> Help !
> 
> I'm trying to find the reason, why the program below segfaults on parisc.
> if you change the "#if 0" to "#if 1", then it works without segfaulting.
> 
> To me it seems we have some kind of race in the linux kernel, e.g.
> thread exits, wants to notify parent, but parent hasn't returned from clone() call... ?!?
> 
> Any ideas ?

We have some other problems that may be related to this. It might be a
race in how signals are delivered. We hit some problems with multiple
threads that seems somewhat similar.  See thread_test2.c in our
userspace cvs repo. It *might* be the same problem.

Sorry I don't have any ideas what the real problem is. I tried to debug
this a bit but reach any conclusions. It might be because our fork() is
quite slow because of all the cache flushing.

randolph



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Cc: Andrew Morton <akpm@osdl.org>,
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Xref: news.gmane.org gmane.linux.ports.parisc:24184

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There are still a couple outstanding issues which need to be resolved before
this is ready for inclusion in the mainline kernel.

The main one is support for CONFIG_STACK_GROWSUP, which I think is just
parisc.  I've been meaning to look into this for a while, but I was out of
commision for most of November so it got punted to the back burner.  I'll
try to revisit it soonish.  If someone from the parisc-linux list wants to
take a look, though, that's fine by me.

The other is support for the various executable formats.  I've tested elf
and script pretty thoroughly, but I'm not sure how to go about testing most
of the others -- does anyone use aout anymore?  Maybe the solution is just
to check it in and wait to see if someone complains.

Ollie

On 12/29/06, Ingo Molnar <mingo@elte.hu> wrote:
>
>
> FYI, i have forward ported your MAX_ARG_PAGES limit removal patch to
> 2.6.20-rc2 and have included it in the -rt kernel. It's working great -
> i can now finally do a "ls -t patches/*.patch" in my patch repository -
> something i havent been able to do for years ;-)
>
> what is keeping this fix from going upstream?
>
>         Ingo
>
> -------------->
> Subject: [patch] remove MAX_ARG_PAGES
> From: Ollie Wild <aaw@google.com>
>
> this patch removes the MAX_ARG_PAGES limit by copying between VMs. This
> makes process argv/env limited by the stack limit (and it's thus
> arbitrarily sizable). No more:
>
>   -bash: /bin/ls: Argument list too long
>
> Signed-off-by: Ingo Molnar <mingo@elte.hu>
> ---
> arch/x86_64/ia32/ia32_binfmt.c |   55 -----
> fs/binfmt_elf.c                |   12 -
> fs/binfmt_misc.c               |    4
> fs/binfmt_script.c             |    4
> fs/compat.c                    |  118 ++++--------
> fs/exec.c                      |  382
> +++++++++++++++++++----------------------
> include/linux/binfmts.h        |   14 -
> include/linux/mm.h             |    7
> kernel/auditsc.c               |    5
> mm/mprotect.c                  |    2
> mm/mremap.c                    |    2
> 11 files changed, 250 insertions(+), 355 deletions(-)
>
> Index: linux/arch/x86_64/ia32/ia32_binfmt.c
> ===================================================================
> --- linux.orig/arch/x86_64/ia32/ia32_binfmt.c
> +++ linux/arch/x86_64/ia32/ia32_binfmt.c
> @@ -279,9 +279,6 @@ do
> {                                                        \
> #define load_elf_binary load_elf32_binary
>
> #define ELF_PLAT_INIT(r, load_addr)    elf32_init(r)
> -#define setup_arg_pages(bprm, stack_top, exec_stack) \
> -       ia32_setup_arg_pages(bprm, stack_top, exec_stack)
> -int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long
> stack_top, int executable_stack);
>
> #undef start_thread
> #define start_thread(regs,new_rip,new_rsp) do { \
> @@ -336,57 +333,7 @@ static void elf32_init(struct pt_regs *r
> int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long
> stack_top,
>                          int executable_stack)
> {
> -       unsigned long stack_base;
> -       struct vm_area_struct *mpnt;
> -       struct mm_struct *mm = current->mm;
> -       int i, ret;
> -
> -       stack_base = stack_top - MAX_ARG_PAGES * PAGE_SIZE;
> -       mm->arg_start = bprm->p + stack_base;
> -
> -       bprm->p += stack_base;
> -       if (bprm->loader)
> -               bprm->loader += stack_base;
> -       bprm->exec += stack_base;
> -
> -       mpnt = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
> -       if (!mpnt)
> -               return -ENOMEM;
> -
> -       memset(mpnt, 0, sizeof(*mpnt));
> -
> -       down_write(&mm->mmap_sem);
> -       {
> -               mpnt->vm_mm = mm;
> -               mpnt->vm_start = PAGE_MASK & (unsigned long) bprm->p;
> -               mpnt->vm_end = stack_top;
> -               if (executable_stack == EXSTACK_ENABLE_X)
> -                       mpnt->vm_flags = VM_STACK_FLAGS |  VM_EXEC;
> -               else if (executable_stack == EXSTACK_DISABLE_X)
> -                       mpnt->vm_flags = VM_STACK_FLAGS & ~VM_EXEC;
> -               else
> -                       mpnt->vm_flags = VM_STACK_FLAGS;
> -               mpnt->vm_page_prot = (mpnt->vm_flags & VM_EXEC) ?
> -                       PAGE_COPY_EXEC : PAGE_COPY;
> -               if ((ret = insert_vm_struct(mm, mpnt))) {
> -                       up_write(&mm->mmap_sem);
> -                       kmem_cache_free(vm_area_cachep, mpnt);
> -                       return ret;
> -               }
> -               mm->stack_vm = mm->total_vm = vma_pages(mpnt);
> -       }
> -
> -       for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
> -               struct page *page = bprm->page[i];
> -               if (page) {
> -                       bprm->page[i] = NULL;
> -                       install_arg_page(mpnt, page, stack_base);
> -               }
> -               stack_base += PAGE_SIZE;
> -       }
> -       up_write(&mm->mmap_sem);
> -
> -       return 0;
> +       return setup_arg_pages(bprm, stack_top, executable_stack);
> }
> EXPORT_SYMBOL(ia32_setup_arg_pages);
>
> Index: linux/fs/binfmt_elf.c
> ===================================================================
> --- linux.orig/fs/binfmt_elf.c
> +++ linux/fs/binfmt_elf.c
> @@ -253,8 +253,8 @@ create_elf_tables(struct linux_binprm *b
>                 size_t len;
>                 if (__put_user((elf_addr_t)p, argv++))
>                         return -EFAULT;
> -               len = strnlen_user((void __user *)p,
> PAGE_SIZE*MAX_ARG_PAGES);
> -               if (!len || len > PAGE_SIZE*MAX_ARG_PAGES)
> +               len = strnlen_user((void __user *)p, MAX_ARG_STRLEN);
> +               if (!len || len > MAX_ARG_STRLEN)
>                         return 0;
>                 p += len;
>         }
> @@ -265,8 +265,8 @@ create_elf_tables(struct linux_binprm *b
>                 size_t len;
>                 if (__put_user((elf_addr_t)p, envp++))
>                         return -EFAULT;
> -               len = strnlen_user((void __user *)p,
> PAGE_SIZE*MAX_ARG_PAGES);
> -               if (!len || len > PAGE_SIZE*MAX_ARG_PAGES)
> +               len = strnlen_user((void __user *)p, MAX_ARG_STRLEN);
> +               if (!len || len > MAX_ARG_STRLEN)
>                         return 0;
>                 p += len;
>         }
> @@ -767,10 +767,6 @@ static int load_elf_binary(struct linux_
>         }
>
>         /* OK, This is the point of no return */
> -       current->mm->start_data = 0;
> -       current->mm->end_data = 0;
> -       current->mm->end_code = 0;
> -       current->mm->mmap = NULL;
>         current->flags &= ~PF_FORKNOEXEC;
>         current->mm->def_flags = def_flags;
>
> Index: linux/fs/binfmt_misc.c
> ===================================================================
> --- linux.orig/fs/binfmt_misc.c
> +++ linux/fs/binfmt_misc.c
> @@ -126,7 +126,9 @@ static int load_misc_binary(struct linux
>                 goto _ret;
>
>         if (!(fmt->flags & MISC_FMT_PRESERVE_ARGV0)) {
> -               remove_arg_zero(bprm);
> +               retval = remove_arg_zero(bprm);
> +               if (retval)
> +                       goto _ret;
>         }
>
>         if (fmt->flags & MISC_FMT_OPEN_BINARY) {
> Index: linux/fs/binfmt_script.c
> ===================================================================
> --- linux.orig/fs/binfmt_script.c
> +++ linux/fs/binfmt_script.c
> @@ -68,7 +68,9 @@ static int load_script(struct linux_binp
>          * This is done in reverse order, because of how the
>          * user environment and arguments are stored.
>          */
> -       remove_arg_zero(bprm);
> +       retval = remove_arg_zero(bprm);
> +       if (retval)
> +               return retval;
>         retval = copy_strings_kernel(1, &bprm->interp, bprm);
>         if (retval < 0) return retval;
>         bprm->argc++;
> Index: linux/fs/compat.c
> ===================================================================
> --- linux.orig/fs/compat.c
> +++ linux/fs/compat.c
> @@ -1389,6 +1389,7 @@ static int compat_copy_strings(int argc,
> {
>         struct page *kmapped_page = NULL;
>         char *kaddr = NULL;
> +       unsigned long kpos = 0;
>         int ret;
>
>         while (argc-- > 0) {
> @@ -1397,92 +1398,72 @@ static int compat_copy_strings(int argc,
>                 unsigned long pos;
>
>                 if (get_user(str, argv+argc) ||
> -                       !(len = strnlen_user(compat_ptr(str), bprm->p))) {
> +                   !(len = strnlen_user(compat_ptr(str),
> MAX_ARG_STRLEN))) {
>                         ret = -EFAULT;
>                         goto out;
>                 }
>
> -               if (bprm->p < len)  {
> +               if (MAX_ARG_STRLEN < len) {
>                         ret = -E2BIG;
>                         goto out;
>                 }
>
> -               bprm->p -= len;
> -               /* XXX: add architecture specific overflow check here. */
> +               /* We're going to work our way backwords. */
>                 pos = bprm->p;
> +               str += len;
> +               bprm->p -= len;
>
>                 while (len > 0) {
> -                       int i, new, err;
>                         int offset, bytes_to_copy;
> -                       struct page *page;
>
>                         offset = pos % PAGE_SIZE;
> -                       i = pos/PAGE_SIZE;
> -                       page = bprm->page[i];
> -                       new = 0;
> -                       if (!page) {
> -                               page = alloc_page(GFP_HIGHUSER);
> -                               bprm->page[i] = page;
> -                               if (!page) {
> -                                       ret = -ENOMEM;
> +                       if (offset == 0)
> +                               offset = PAGE_SIZE;
> +
> +                       bytes_to_copy = offset;
> +                       if (bytes_to_copy > len)
> +                               bytes_to_copy = len;
> +
> +                       offset -= bytes_to_copy;
> +                       pos -= bytes_to_copy;
> +                       str -= bytes_to_copy;
> +                       len -= bytes_to_copy;
> +
> +                       if (!kmapped_page || kpos != (pos & PAGE_MASK)) {
> +                               struct page *page;
> +
> +                               ret = get_user_pages(current, bprm->mm,
> pos,
> +                                                    1, 1, 1, &page,
> NULL);
> +                               if (ret <= 0) {
> +                                       /* We've exceed the stack rlimit.
> */
> +                                       ret = -E2BIG;
>                                         goto out;
>                                 }
> -                               new = 1;
> -                       }
>
> -                       if (page != kmapped_page) {
> -                               if (kmapped_page)
> +                               if (kmapped_page) {
>                                         kunmap(kmapped_page);
> +                                       put_page(kmapped_page);
> +                               }
>                                 kmapped_page = page;
>                                 kaddr = kmap(kmapped_page);
> +                               kpos = pos & PAGE_MASK;
>                         }
> -                       if (new && offset)
> -                               memset(kaddr, 0, offset);
> -                       bytes_to_copy = PAGE_SIZE - offset;
> -                       if (bytes_to_copy > len) {
> -                               bytes_to_copy = len;
> -                               if (new)
> -                                       memset(kaddr+offset+len, 0,
> -                                               PAGE_SIZE-offset-len);
> -                       }
> -                       err = copy_from_user(kaddr+offset,
> compat_ptr(str),
> -                                               bytes_to_copy);
> -                       if (err) {
> +                       if (copy_from_user(kaddr+offset, compat_ptr(str),
> +                                               bytes_to_copy)) {
>                                 ret = -EFAULT;
>                                 goto out;
>                         }
> -
> -                       pos += bytes_to_copy;
> -                       str += bytes_to_copy;
> -                       len -= bytes_to_copy;
>                 }
>         }
>         ret = 0;
> out:
> -       if (kmapped_page)
> +       if (kmapped_page) {
>                 kunmap(kmapped_page);
> -       return ret;
> -}
> -
> -#ifdef CONFIG_MMU
> -
> -#define free_arg_pages(bprm) do { } while (0)
> -
> -#else
> -
> -static inline void free_arg_pages(struct linux_binprm *bprm)
> -{
> -       int i;
> -
> -       for (i = 0; i < MAX_ARG_PAGES; i++) {
> -               if (bprm->page[i])
> -                       __free_page(bprm->page[i]);
> -               bprm->page[i] = NULL;
> +               put_page(kmapped_page);
>         }
> +       return ret;
> }
>
> -#endif /* CONFIG_MMU */
> -
> /*
>   * compat_do_execve() is mostly a copy of do_execve(), with the exception
>   * that it processes 32 bit argv and envp pointers.
> @@ -1495,7 +1476,6 @@ int compat_do_execve(char * filename,
>         struct linux_binprm *bprm;
>         struct file *file;
>         int retval;
> -       int i;
>
>         retval = -ENOMEM;
>         bprm = kzalloc(sizeof(*bprm), GFP_KERNEL);
> @@ -1509,24 +1489,19 @@ int compat_do_execve(char * filename,
>
>         sched_exec();
>
> -       bprm->p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
>         bprm->file = file;
>         bprm->filename = filename;
>         bprm->interp = filename;
> -       bprm->mm = mm_alloc();
> -       retval = -ENOMEM;
> -       if (!bprm->mm)
> -               goto out_file;
>
> -       retval = init_new_context(current, bprm->mm);
> -       if (retval < 0)
> -               goto out_mm;
> +       retval = bprm_mm_init(bprm);
> +       if (retval)
> +               goto out_file;
>
> -       bprm->argc = compat_count(argv, bprm->p / sizeof(compat_uptr_t));
> +       bprm->argc = compat_count(argv, MAX_ARG_STRINGS);
>         if ((retval = bprm->argc) < 0)
>                 goto out_mm;
>
> -       bprm->envc = compat_count(envp, bprm->p / sizeof(compat_uptr_t));
> +       bprm->envc = compat_count(envp, MAX_ARG_STRINGS);
>         if ((retval = bprm->envc) < 0)
>                 goto out_mm;
>
> @@ -1551,10 +1526,8 @@ int compat_do_execve(char * filename,
>         if (retval < 0)
>                 goto out;
>
> -       retval = search_binary_handler(bprm, regs);
> +       retval = search_binary_handler(bprm,regs);
>         if (retval >= 0) {
> -               free_arg_pages(bprm);
> -
>                 /* execve success */
>                 security_bprm_free(bprm);
>                 acct_update_integrals(current);
> @@ -1563,19 +1536,12 @@ int compat_do_execve(char * filename,
>         }
>
> out:
> -       /* Something went wrong, return the inode and free the argument
> pages*/
> -       for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
> -               struct page * page = bprm->page[i];
> -               if (page)
> -                       __free_page(page);
> -       }
> -
>         if (bprm->security)
>                 security_bprm_free(bprm);
>
> out_mm:
>         if (bprm->mm)
> -               mmdrop(bprm->mm);
> +               mmput (bprm->mm);
>
> out_file:
>         if (bprm->file) {
> Index: linux/fs/exec.c
> ===================================================================
> --- linux.orig/fs/exec.c
> +++ linux/fs/exec.c
> @@ -174,6 +174,79 @@ exit:
>         goto out;
> }
>
> +#ifdef CONFIG_STACK_GROWSUP
> +#error I broke your build because I rearchitected the stack code, and I \
> +       don't have access to an architecture where CONFIG_STACK_GROWSUP is
> \
> +       set.  Please fixe this or send me a machine which I can test this
> on. \
> +       \
> +       -- Ollie Wild <aaw@google.com>
> +#endif
> +
> +/* Create a new mm_struct and populate it with a temporary stack
> + * vm_area_struct.  We don't have enough context at this point to set the
> + * stack flags, permissions, and offset, so we use temporary
> values.  We'll
> + * update them later in setup_arg_pages(). */
> +int bprm_mm_init(struct linux_binprm *bprm)
> +{
> +       int err;
> +       struct mm_struct *mm = NULL;
> +       struct vm_area_struct *vma = NULL;
> +
> +       bprm->mm = mm = mm_alloc();
> +       err = -ENOMEM;
> +       if (!mm)
> +               goto err;
> +
> +       if ((err = init_new_context(current, mm)))
> +               goto err;
> +
> +       bprm->vma = vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
> +       err = -ENOMEM;
> +       if (!vma)
> +               goto err;
> +
> +       down_write(&mm->mmap_sem);
> +       {
> +               vma->vm_mm = mm;
> +
> +               /* Place the stack at the top of user memory.  Later,
> we'll
> +                * move this to an appropriate place.  We don't use
> STACK_TOP
> +                * because that can depend on attributes which aren't
> +                * configured yet. */
> +               vma->vm_end = TASK_SIZE;
> +               vma->vm_start = vma->vm_end - PAGE_SIZE;
> +
> +               vma->vm_flags = VM_STACK_FLAGS;
> +               vma->vm_page_prot = protection_map[vma->vm_flags & 0x7];
> +               if ((err = insert_vm_struct(mm, vma))) {
> +                       up_write(&mm->mmap_sem);
> +                       goto err;
> +               }
> +
> +               mm->stack_vm = mm->total_vm = 1;
> +       }
> +       up_write(&mm->mmap_sem);
> +
> +       bprm->p = vma->vm_end - sizeof(void *);
> +
> +       return 0;
> +
> +err:
> +       if (vma) {
> +               bprm->vma = NULL;
> +               kmem_cache_free(vm_area_cachep, vma);
> +       }
> +
> +       if (mm) {
> +               bprm->mm = NULL;
> +               mmdrop(mm);
> +       }
> +
> +       return err;
> +}
> +
> +EXPORT_SYMBOL(bprm_mm_init);
> +
> /*
>   * count() counts the number of strings in array ARGV.
>   */
> @@ -199,15 +272,16 @@ static int count(char __user * __user *
> }
>
> /*
> - * 'copy_strings()' copies argument/environment strings from user
> - * memory to free pages in kernel mem. These are in a format ready
> - * to be put directly into the top of new user memory.
> + * 'copy_strings()' copies argument/environment strings from the old
> + * processes's memory to the new process's stack.  The call to
> get_user_pages()
> + * ensures the destination page is created and not swapped out.
>   */
> static int copy_strings(int argc, char __user * __user * argv,
>                         struct linux_binprm *bprm)
> {
>         struct page *kmapped_page = NULL;
>         char *kaddr = NULL;
> +       unsigned long kpos = 0;
>         int ret;
>
>         while (argc-- > 0) {
> @@ -216,69 +290,68 @@ static int copy_strings(int argc, char _
>                 unsigned long pos;
>
>                 if (get_user(str, argv+argc) ||
> -                               !(len = strnlen_user(str, bprm->p))) {
> +                               !(len = strnlen_user(str,
> MAX_ARG_STRLEN))) {
>                         ret = -EFAULT;
>                         goto out;
>                 }
>
> -               if (bprm->p < len)  {
> +               if (MAX_ARG_STRLEN < len) {
>                         ret = -E2BIG;
>                         goto out;
>                 }
>
> -               bprm->p -= len;
> -               /* XXX: add architecture specific overflow check here. */
> +               /* We're going to work our way backwords. */
>                 pos = bprm->p;
> +               str += len;
> +               bprm->p -= len;
>
>                 while (len > 0) {
> -                       int i, new, err;
>                         int offset, bytes_to_copy;
> -                       struct page *page;
>
>                         offset = pos % PAGE_SIZE;
> -                       i = pos/PAGE_SIZE;
> -                       page = bprm->page[i];
> -                       new = 0;
> -                       if (!page) {
> -                               page = alloc_page(GFP_HIGHUSER);
> -                               bprm->page[i] = page;
> -                               if (!page) {
> -                                       ret = -ENOMEM;
> +                       if (offset == 0)
> +                               offset = PAGE_SIZE;
> +
> +                       bytes_to_copy = offset;
> +                       if (bytes_to_copy > len)
> +                               bytes_to_copy = len;
> +
> +                       offset -= bytes_to_copy;
> +                       pos -= bytes_to_copy;
> +                       str -= bytes_to_copy;
> +                       len -= bytes_to_copy;
> +
> +                       if (!kmapped_page || kpos != (pos & PAGE_MASK)) {
> +                               struct page *page;
> +
> +                               ret = get_user_pages(current, bprm->mm,
> pos,
> +                                                    1, 1, 1, &page,
> NULL);
> +                               if (ret <= 0) {
> +                                       /* We've exceed the stack rlimit.
> */
> +                                       ret = -E2BIG;
>                                         goto out;
>                                 }
> -                               new = 1;
> -                       }
>
> -                       if (page != kmapped_page) {
> -                               if (kmapped_page)
> +                               if (kmapped_page) {
>                                         kunmap(kmapped_page);
> +                                       put_page(kmapped_page);
> +                               }
>                                 kmapped_page = page;
>                                 kaddr = kmap(kmapped_page);
> +                               kpos = pos & PAGE_MASK;
>                         }
> -                       if (new && offset)
> -                               memset(kaddr, 0, offset);
> -                       bytes_to_copy = PAGE_SIZE - offset;
> -                       if (bytes_to_copy > len) {
> -                               bytes_to_copy = len;
> -                               if (new)
> -                                       memset(kaddr+offset+len, 0,
> -                                               PAGE_SIZE-offset-len);
> -                       }
> -                       err = copy_from_user(kaddr+offset, str,
> bytes_to_copy);
> -                       if (err) {
> +                       if (copy_from_user(kaddr+offset, str,
> bytes_to_copy)) {
>                                 ret = -EFAULT;
>                                 goto out;
>                         }
> -
> -                       pos += bytes_to_copy;
> -                       str += bytes_to_copy;
> -                       len -= bytes_to_copy;
>                 }
>         }
>         ret = 0;
> out:
> -       if (kmapped_page)
> +       if (kmapped_page) {
>                 kunmap(kmapped_page);
> +               put_page(kmapped_page);
> +       }
>         return ret;
> }
>
> @@ -297,157 +370,79 @@ int copy_strings_kernel(int argc,char **
>
> EXPORT_SYMBOL(copy_strings_kernel);
>
> -#ifdef CONFIG_MMU
> -/*
> - * This routine is used to map in a page into an address space: needed by
> - * execve() for the initial stack and environment pages.
> - *
> - * vma->vm_mm->mmap_sem is held for writing.
> - */
> -void install_arg_page(struct vm_area_struct *vma,
> -                       struct page *page, unsigned long address)
> -{
> -       struct mm_struct *mm = vma->vm_mm;
> -       pte_t * pte;
> -       spinlock_t *ptl;
> -
> -       if (unlikely(anon_vma_prepare(vma)))
> -               goto out;
> -
> -       flush_dcache_page(page);
> -       pte = get_locked_pte(mm, address, &ptl);
> -       if (!pte)
> -               goto out;
> -       if (!pte_none(*pte)) {
> -               pte_unmap_unlock(pte, ptl);
> -               goto out;
> -       }
> -       inc_mm_counter(mm, anon_rss);
> -       lru_cache_add_active(page);
> -       set_pte_at(mm, address, pte, pte_mkdirty(pte_mkwrite(mk_pte(
> -                                       page, vma->vm_page_prot))));
> -       page_add_new_anon_rmap(page, vma, address);
> -       pte_unmap_unlock(pte, ptl);
> -
> -       /* no need for flush_tlb */
> -       return;
> -out:
> -       __free_page(page);
> -       force_sig(SIGKILL, current);
> -}
> -
> #define EXTRA_STACK_VM_PAGES   20      /* random */
>
> +/* Finalizes the stack vm_area_struct.  The flags and permissions are
> updated,
> + * the stack is optionally relocated, and some extra space is added.
> + */
> int setup_arg_pages(struct linux_binprm *bprm,
>                     unsigned long stack_top,
>                     int executable_stack)
> {
> -       unsigned long stack_base;
> -       struct vm_area_struct *mpnt;
> +       unsigned long ret;
> +       unsigned long stack_base, stack_shift;
>         struct mm_struct *mm = current->mm;
> -       int i, ret;
> -       long arg_size;
>
> -#ifdef CONFIG_STACK_GROWSUP
> -       /* Move the argument and environment strings to the bottom of the
> -        * stack space.
> -        */
> -       int offset, j;
> -       char *to, *from;
> +       BUG_ON(stack_top > TASK_SIZE);
> +       BUG_ON(stack_top & ~PAGE_MASK);
>
> -       /* Start by shifting all the pages down */
> -       i = 0;
> -       for (j = 0; j < MAX_ARG_PAGES; j++) {
> -               struct page *page = bprm->page[j];
> -               if (!page)
> -                       continue;
> -               bprm->page[i++] = page;
> -       }
> -
> -       /* Now move them within their pages */
> -       offset = bprm->p % PAGE_SIZE;
> -       to = kmap(bprm->page[0]);
> -       for (j = 1; j < i; j++) {
> -               memmove(to, to + offset, PAGE_SIZE - offset);
> -               from = kmap(bprm->page[j]);
> -               memcpy(to + PAGE_SIZE - offset, from, offset);
> -               kunmap(bprm->page[j - 1]);
> -               to = from;
> -       }
> -       memmove(to, to + offset, PAGE_SIZE - offset);
> -       kunmap(bprm->page[j - 1]);
> -
> -       /* Limit stack size to 1GB */
> -       stack_base = current->signal->rlim[RLIMIT_STACK].rlim_max;
> -       if (stack_base > (1 << 30))
> -               stack_base = 1 << 30;
> -       stack_base = PAGE_ALIGN(stack_top - stack_base);
> -
> -       /* Adjust bprm->p to point to the end of the strings. */
> -       bprm->p = stack_base + PAGE_SIZE * i - offset;
> -
> -       mm->arg_start = stack_base;
> -       arg_size = i << PAGE_SHIFT;
> -
> -       /* zero pages that were copied above */
> -       while (i < MAX_ARG_PAGES)
> -               bprm->page[i++] = NULL;
> -#else
> -       stack_base = arch_align_stack(stack_top -
> MAX_ARG_PAGES*PAGE_SIZE);
> +       stack_base = arch_align_stack(stack_top - mm->stack_vm*PAGE_SIZE);
>         stack_base = PAGE_ALIGN(stack_base);
> -       bprm->p += stack_base;
> -       mm->arg_start = bprm->p;
> -       arg_size = stack_top - (PAGE_MASK & (unsigned long)
> mm->arg_start);
> -#endif
>
> -       arg_size += EXTRA_STACK_VM_PAGES * PAGE_SIZE;
> +       stack_shift = (bprm->p & PAGE_MASK) - stack_base;
> +       BUG_ON(stack_shift < 0);
> +       bprm->p -= stack_shift;
> +       mm->arg_start = bprm->p;
>
>         if (bprm->loader)
> -               bprm->loader += stack_base;
> -       bprm->exec += stack_base;
> -
> -       mpnt = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
> -       if (!mpnt)
> -               return -ENOMEM;
> -
> -       memset(mpnt, 0, sizeof(*mpnt));
> +               bprm->loader -= stack_shift;
> +       bprm->exec -= stack_shift;
>
>         down_write(&mm->mmap_sem);
>         {
> -               mpnt->vm_mm = mm;
> -#ifdef CONFIG_STACK_GROWSUP
> -               mpnt->vm_start = stack_base;
> -               mpnt->vm_end = stack_base + arg_size;
> -#else
> -               mpnt->vm_end = stack_top;
> -               mpnt->vm_start = mpnt->vm_end - arg_size;
> -#endif
> +               struct vm_area_struct *vma = bprm->vma;
> +               struct vm_area_struct *prev = NULL;
> +               unsigned long vm_flags = vma->vm_flags;
> +
>                 /* Adjust stack execute permissions; explicitly enable
>                  * for EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X
>                  * and leave alone (arch default) otherwise. */
>                 if (unlikely(executable_stack == EXSTACK_ENABLE_X))
> -                       mpnt->vm_flags = VM_STACK_FLAGS |  VM_EXEC;
> +                       vm_flags |= VM_EXEC;
>                 else if (executable_stack == EXSTACK_DISABLE_X)
> -                       mpnt->vm_flags = VM_STACK_FLAGS & ~VM_EXEC;
> -               else
> -                       mpnt->vm_flags = VM_STACK_FLAGS;
> -               mpnt->vm_flags |= mm->def_flags;
> -               mpnt->vm_page_prot = protection_map[mpnt->vm_flags & 0x7];
> -               if ((ret = insert_vm_struct(mm, mpnt))) {
> +                       vm_flags &= ~VM_EXEC;
> +               vm_flags |= mm->def_flags;
> +
> +               ret = mprotect_fixup(vma, &prev, vma->vm_start,
> vma->vm_end,
> +                               vm_flags);
> +               if (ret) {
>                         up_write(&mm->mmap_sem);
> -                       kmem_cache_free(vm_area_cachep, mpnt);
>                         return ret;
>                 }
> -               mm->stack_vm = mm->total_vm = vma_pages(mpnt);
> -       }
> +               BUG_ON(prev != vma);
> +
> +               /* Move stack pages down in memory. */
> +               if (stack_shift) {
> +                       /* This should be safe even with overlap because
> we
> +                        * are shifting down. */
> +                       ret = move_vma(vma, vma->vm_start,
> +                                       vma->vm_end - vma->vm_start,
> +                                       vma->vm_end - vma->vm_start,
> +                                       vma->vm_start - stack_shift);
> +                       if (ret & ~PAGE_MASK) {
> +                               up_write(&mm->mmap_sem);
> +                               return ret;
> +                       }
> +               }
>
> -       for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
> -               struct page *page = bprm->page[i];
> -               if (page) {
> -                       bprm->page[i] = NULL;
> -                       install_arg_page(mpnt, page, stack_base);
> +               // Expand the stack.
> +               vma = find_vma(mm, bprm->p);
> +               BUG_ON(!vma || bprm->p < vma->vm_start);
> +               if (expand_stack(vma, stack_base -
> +                                       EXTRA_STACK_VM_PAGES * PAGE_SIZE))
> {
> +                       up_write(&mm->mmap_sem);
> +                       return -EFAULT;
>                 }
> -               stack_base += PAGE_SIZE;
>         }
>         up_write(&mm->mmap_sem);
>
> @@ -456,23 +451,6 @@ int setup_arg_pages(struct linux_binprm
>
> EXPORT_SYMBOL(setup_arg_pages);
>
> -#define free_arg_pages(bprm) do { } while (0)
> -
> -#else
> -
> -static inline void free_arg_pages(struct linux_binprm *bprm)
> -{
> -       int i;
> -
> -       for (i = 0; i < MAX_ARG_PAGES; i++) {
> -               if (bprm->page[i])
> -                       __free_page(bprm->page[i]);
> -               bprm->page[i] = NULL;
> -       }
> -}
> -
> -#endif /* CONFIG_MMU */
> -
> struct file *open_exec(const char *name)
> {
>         struct nameidata nd;
> @@ -993,8 +971,10 @@ void compute_creds(struct linux_binprm *
>
> EXPORT_SYMBOL(compute_creds);
>
> -void remove_arg_zero(struct linux_binprm *bprm)
> +int remove_arg_zero(struct linux_binprm *bprm)
> {
> +       int ret = 0;
> +
>         if (bprm->argc) {
>                 unsigned long offset;
>                 char * kaddr;
> @@ -1008,13 +988,23 @@ void remove_arg_zero(struct linux_binprm
>                                 continue;
>                         offset = 0;
>                         kunmap_atomic(kaddr, KM_USER0);
> +                       put_page(page);
> inside:
> -                       page = bprm->page[bprm->p/PAGE_SIZE];
> +                       ret = get_user_pages(current, bprm->mm, bprm->p,
> +                                            1, 0, 1, &page, NULL);
> +                       if (ret <= 0) {
> +                               ret = -EFAULT;
> +                               goto out;
> +                       }
>                         kaddr = kmap_atomic(page, KM_USER0);
>                 }
>                 kunmap_atomic(kaddr, KM_USER0);
>                 bprm->argc--;
> +               ret = 0;
>         }
> +
> +out:
> +       return ret;
> }
>
> EXPORT_SYMBOL(remove_arg_zero);
> @@ -1041,7 +1031,7 @@ int search_binary_handler(struct linux_b
>                 fput(bprm->file);
>                 bprm->file = NULL;
>
> -               loader = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
> +               loader = bprm->vma->vm_end - sizeof(void *);
>
>                 file = open_exec("/sbin/loader");
>                 retval = PTR_ERR(file);
> @@ -1134,7 +1124,6 @@ int do_execve(char * filename,
>         struct linux_binprm *bprm;
>         struct file *file;
>         int retval;
> -       int i;
>
>         retval = -ENOMEM;
>         bprm = kzalloc(sizeof(*bprm), GFP_KERNEL);
> @@ -1148,25 +1137,19 @@ int do_execve(char * filename,
>
>         sched_exec();
>
> -       bprm->p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
> -
>         bprm->file = file;
>         bprm->filename = filename;
>         bprm->interp = filename;
> -       bprm->mm = mm_alloc();
> -       retval = -ENOMEM;
> -       if (!bprm->mm)
> -               goto out_file;
>
> -       retval = init_new_context(current, bprm->mm);
> -       if (retval < 0)
> -               goto out_mm;
> +       retval = bprm_mm_init(bprm);
> +       if (retval)
> +               goto out_file;
>
> -       bprm->argc = count(argv, bprm->p / sizeof(void *));
> +       bprm->argc = count(argv, MAX_ARG_STRINGS);
>         if ((retval = bprm->argc) < 0)
>                 goto out_mm;
>
> -       bprm->envc = count(envp, bprm->p / sizeof(void *));
> +       bprm->envc = count(envp, MAX_ARG_STRINGS);
>         if ((retval = bprm->envc) < 0)
>                 goto out_mm;
>
> @@ -1193,8 +1176,6 @@ int do_execve(char * filename,
>
>         retval = search_binary_handler(bprm,regs);
>         if (retval >= 0) {
> -               free_arg_pages(bprm);
> -
>                 /* execve success */
>                 security_bprm_free(bprm);
>                 acct_update_integrals(current);
> @@ -1203,19 +1184,12 @@ int do_execve(char * filename,
>         }
>
> out:
> -       /* Something went wrong, return the inode and free the argument
> pages*/
> -       for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
> -               struct page * page = bprm->page[i];
> -               if (page)
> -                       __free_page(page);
> -       }
> -
>         if (bprm->security)
>                 security_bprm_free(bprm);
>
> out_mm:
>         if (bprm->mm)
> -               mmdrop(bprm->mm);
> +               mmput (bprm->mm);
>
> out_file:
>         if (bprm->file) {
> Index: linux/include/linux/binfmts.h
> ===================================================================
> --- linux.orig/include/linux/binfmts.h
> +++ linux/include/linux/binfmts.h
> @@ -5,12 +5,9 @@
>
> struct pt_regs;
>
> -/*
> - * MAX_ARG_PAGES defines the number of pages allocated for arguments
> - * and envelope for the new program. 32 should suffice, this gives
> - * a maximum env+arg of 128kB w/4KB pages!
> - */
> -#define MAX_ARG_PAGES 32
> +/* FIXME: Find real limits, or none. */
> +#define MAX_ARG_STRLEN (PAGE_SIZE * 32)
> +#define MAX_ARG_STRINGS 0x7FFFFFFF
>
> /* sizeof(linux_binprm->buf) */
> #define BINPRM_BUF_SIZE 128
> @@ -22,7 +19,7 @@ struct pt_regs;
>   */
> struct linux_binprm{
>         char buf[BINPRM_BUF_SIZE];
> -       struct page *page[MAX_ARG_PAGES];
> +       struct vm_area_struct *vma;
>         struct mm_struct *mm;
>         unsigned long p; /* current top of mem */
>         int sh_bang;
> @@ -65,7 +62,7 @@ extern int register_binfmt(struct linux_
> extern int unregister_binfmt(struct linux_binfmt *);
>
> extern int prepare_binprm(struct linux_binprm *);
> -extern void remove_arg_zero(struct linux_binprm *);
> +extern int __must_check remove_arg_zero(struct linux_binprm *);
> extern int search_binary_handler(struct linux_binprm *,struct pt_regs *);
> extern int flush_old_exec(struct linux_binprm * bprm);
>
> @@ -82,6 +79,7 @@ extern int suid_dumpable;
> extern int setup_arg_pages(struct linux_binprm * bprm,
>                            unsigned long stack_top,
>                            int executable_stack);
> +extern int bprm_mm_init(struct linux_binprm *bprm);
> extern int copy_strings_kernel(int argc,char ** argv,struct linux_binprm
> *bprm);
> extern void compute_creds(struct linux_binprm *binprm);
> extern int do_coredump(long signr, int exit_code, struct pt_regs * regs);
> Index: linux/include/linux/mm.h
> ===================================================================
> --- linux.orig/include/linux/mm.h
> +++ linux/include/linux/mm.h
> @@ -775,7 +775,6 @@ static inline int handle_mm_fault(struct
>
> extern int make_pages_present(unsigned long addr, unsigned long end);
> extern int access_process_vm(struct task_struct *tsk, unsigned long addr,
> void *buf, int len, int write);
> -void install_arg_page(struct vm_area_struct *, struct page *, unsigned
> long);
>
> int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, unsigned
> long start,
>                 int len, int write, int force, struct page **pages, struct
> vm_area_struct **vmas);
> @@ -791,9 +790,15 @@ int FASTCALL(set_page_dirty(struct page
> int set_page_dirty_lock(struct page *page);
> int clear_page_dirty_for_io(struct page *page);
>
> +extern unsigned long move_vma(struct vm_area_struct *vma,
> +               unsigned long old_addr, unsigned long old_len,
> +               unsigned long new_len, unsigned long new_addr);
> extern unsigned long do_mremap(unsigned long addr,
>                                unsigned long old_len, unsigned long
> new_len,
>                                unsigned long flags, unsigned long
> new_addr);
> +extern int mprotect_fixup(struct vm_area_struct *vma,
> +                         struct vm_area_struct **pprev, unsigned long
> start,
> +                         unsigned long end, unsigned long newflags);
>
> /*
>   * Prototype to add a shrinker callback for ageable caches.
> Index: linux/kernel/auditsc.c
> ===================================================================
> --- linux.orig/kernel/auditsc.c
> +++ linux/kernel/auditsc.c
> @@ -1755,6 +1755,10 @@ int __audit_ipc_set_perm(unsigned long q
>
> int audit_bprm(struct linux_binprm *bprm)
> {
> +       /* FIXME: Don't do anything for now until I figure out how to
> handle
> +        * this.  With the latest changes, kmalloc could well fail under
> good
> +        * scenarios. */
> +#if 0
>         struct audit_aux_data_execve *ax;
>         struct audit_context *context = current->audit_context;
>         unsigned long p, next;
> @@ -1782,6 +1786,7 @@ int audit_bprm(struct linux_binprm *bprm
>         ax->d.type = AUDIT_EXECVE;
>         ax->d.next = context->aux;
>         context->aux = (void *)ax;
> +#endif
>         return 0;
> }
>
> Index: linux/mm/mprotect.c
> ===================================================================
> --- linux.orig/mm/mprotect.c
> +++ linux/mm/mprotect.c
> @@ -128,7 +128,7 @@ static void change_protection(struct vm_
>         flush_tlb_range(vma, start, end);
> }
>
> -static int
> +int
> mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
>         unsigned long start, unsigned long end, unsigned long newflags)
> {
> Index: linux/mm/mremap.c
> ===================================================================
> --- linux.orig/mm/mremap.c
> +++ linux/mm/mremap.c
> @@ -155,7 +155,7 @@ static unsigned long move_page_tables(st
>         return len + old_addr - old_end;        /* how much done */
> }
>
> -static unsigned long move_vma(struct vm_area_struct *vma,
> +unsigned long move_vma(struct vm_area_struct *vma,
>                 unsigned long old_addr, unsigned long old_len,
>                 unsigned long new_len, unsigned long new_addr)
> {
>

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There are still a couple outstanding issues which need to be resolved befor=
e this is ready for inclusion in the mainline kernel.<br><br>The main one i=
s support for CONFIG_STACK_GROWSUP, which I think is just parisc.&nbsp; I&#=
39;ve been meaning to look into this for a while, but I was out of commisio=
n for most of November so it got punted to the back burner.&nbsp; I&#39;ll =
try to revisit it soonish.&nbsp; If someone from the parisc-linux list want=
s to take a look, though, that&#39;s fine by me.
<br><br>The other is support for the various executable formats.&nbsp; I&#3=
9;ve tested elf and script pretty thoroughly, but I&#39;m not sure how to g=
o about testing most of the others -- does anyone use aout anymore?&nbsp; M=
aybe the solution is just to check it in and wait to see if someone complai=
ns.
<br><br>Ollie<br><br><div><span class=3D"gmail_quote">On 12/29/06, <b class=
=3D"gmail_sendername">Ingo Molnar</b> &lt;<a href=3D"mailto:mingo@elte.hu">=
mingo@elte.hu</a>&gt; wrote:</span><blockquote class=3D"gmail_quote" style=
=3D"border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; p=
adding-left: 1ex;">
<br>FYI, i have forward ported your MAX_ARG_PAGES limit removal patch to<br=
>2.6.20-rc2 and have included it in the -rt kernel. It&#39;s working great =
-<br>i can now finally do a &quot;ls -t patches/*.patch&quot; in my patch r=
epository -
<br>something i havent been able to do for years ;-)<br><br>what is keeping=
 this fix from going upstream?<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;Ingo<br><br>--------------&gt;<br>Subject: [patch] remove MAX_AR=
G_PAGES<br>From: Ollie Wild &lt;<a href=3D"mailto:aaw@google.com">
aaw@google.com</a>&gt;<br><br>this patch removes the MAX_ARG_PAGES limit by=
 copying between VMs. This<br>makes process argv/env limited by the stack l=
imit (and it&#39;s thus<br>arbitrarily sizable). No more:<br><br>&nbsp;&nbs=
p;-bash: /bin/ls: Argument list too long
<br><br>Signed-off-by: Ingo Molnar &lt;<a href=3D"mailto:mingo@elte.hu">min=
go@elte.hu</a>&gt;<br>---<br> arch/x86_64/ia32/ia32_binfmt.c |&nbsp;&nbsp; =
55 -----<br> fs/binfmt_elf.c&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp; 12 -<br> fs/=
binfmt_misc.c&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;4
<br> fs/binfmt_script.c&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;4<br> fs/compat.c&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;118 ++++--------<br> fs/exec.=
c&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;382 =
+++++++++++++++++++----------------------<br> include/linux/binfmts.h&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp; 14 -
<br> include/linux/mm.h&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;7<br> kernel/auditsc.c&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p; |&nbsp;&nbsp;&nbsp;&nbsp;5<br> mm/mprotect.c&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;|&nbsp;&nbsp;&nbsp;&nbsp;2<br> mm/mremap.c&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;&nbsp;2<br> 11 files changed, 250 inser=
tions(+), 355 deletions(-)
<br><br>Index: linux/arch/x86_64/ia32/ia32_binfmt.c<br>=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>--- linux.orig/arch/x86_64/ia32/ia32_b=
infmt.c<br>+++ linux/arch/x86_64/ia32/ia32_binfmt.c<br>@@ -279,9 +279,6 @@ =
do {&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\
<br> #define load_elf_binary load_elf32_binary<br><br> #define ELF_PLAT_INI=
T(r, load_addr)&nbsp;&nbsp;&nbsp;&nbsp;elf32_init(r)<br>-#define setup_arg_=
pages(bprm, stack_top, exec_stack) \<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p; ia32_setup_arg_pages(bprm, stack_top, exec_stack)
<br>-int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long stac=
k_top, int executable_stack);<br><br> #undef start_thread<br> #define start=
_thread(regs,new_rip,new_rsp) do { \<br>@@ -336,57 +333,7 @@ static void el=
f32_init(struct pt_regs *r
<br> int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long stac=
k_top,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp; int executable_stack)<br> {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; u=
nsigned long stack_base;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct vm=
_area_struct *mpnt;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct mm_stru=
ct *mm =3D current-&gt;mm;
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int i, ret;<br>-<br>-&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; stack_base =3D stack_top - MAX_ARG_PAGES * PAGE_SI=
ZE;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mm-&gt;arg_start =3D bprm-&gt;=
p + stack_base;<br>-<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;p +=
=3D stack_base;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (bprm-&gt;loade=
r)<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp; bprm-&gt;loader +=3D stack_base;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; bprm-&gt;exec +=3D stack_base;<br>-<br>-&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; mpnt =3D kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);<br>-&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!mpnt)<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return -ENOMEM;<b=
r>-<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; memset(mpnt, 0, sizeof(*mpnt));<br>-<=
br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; down_write(&amp;mm-&gt;mmap_sem);<=
br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mpnt-&gt;vm_mm =3D=
 mm;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; mpnt-&gt;vm_start =3D PAGE_MASK &amp; (unsigned long) bp=
rm-&gt;p;
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; mpnt-&gt;vm_end =3D stack_top;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (executable_=
stack =3D=3D EXSTACK_ENABLE_X)<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; mpnt-&gt;vm_flags =3D VM_STACK_FLAGS |&nbsp;&nbsp;VM_EXEC=
;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; else if (executable_stack =3D=3D EXSTACK_DISABLE_X)
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mpnt-&gt;vm_=
flags =3D VM_STACK_FLAGS &amp; ~VM_EXEC;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; else<br>-&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mpnt-&gt;vm_flags =3D VM_STA=
CK_FLAGS;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp; mpnt-&gt;vm_page_prot =3D (mpnt-&gt;vm_flags &amp; =
VM_EXEC) ?
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PAGE_COPY_EX=
EC : PAGE_COPY;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if ((ret =3D insert_vm_struct(mm, mpnt))) {<b=
r>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; up_write(&amp;=
mm-&gt;mmap_sem);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp; kmem_cache_free(vm_area_cachep, mpnt);
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return ret;<=
br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp; }<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mm-&gt;stack_vm =3D mm-&gt;total_vm =3D vma_p=
ages(mpnt);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>-<br>-&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp; for (i =3D 0 ; i &lt; MAX_ARG_PAGES ; i++) {<br>-=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; struct page *page =3D bprm-&gt;page[i];
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; if (page) {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp; bprm-&gt;page[i] =3D NULL;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp; install_arg_page(mpnt, page, stack_base);<br>-&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; }<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; stack_base +=3D PAGE_SIZE;<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp; up_write(&amp;mm-&gt;mmap_sem);<br>-<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; return 0;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return setup_ar=
g_pages(bprm, stack_top, executable_stack);<br> }<br> EXPORT_SYMBOL(ia32_se=
tup_arg_pages);<br><br>Index: linux/fs/binfmt_elf.c
<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>--- linux.orig=
/fs/binfmt_elf.c<br>+++ linux/fs/binfmt_elf.c<br>@@ -253,8 +253,8 @@ create=
_elf_tables(struct linux_binprm *b<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;size_t len;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;if (__put_user((elf_addr_t)p, argv++))<br>&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return -EFAULT=
;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; len =3D strnlen_user((void __user *)p, PAGE_SIZE*MAX_ARG_PA=
GES);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp; if (!len || len &gt; PAGE_SIZE*MAX_ARG_PAGES)
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; len =3D strnlen_user((void __user *)p, MAX_ARG_STRLEN);<br>+=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; if (!len || len &gt; MAX_ARG_STRLEN)<br>&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0;<br>&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;p +=3D len;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>@@ -=
265,8 +265,8 @@ create_elf_tables(struct linux_binprm *b
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;size_t len;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (__put_user=
((elf_addr_t)p, envp++))<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;return -EFAULT;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; len =3D strnlen_user((v=
oid __user *)p, PAGE_SIZE*MAX_ARG_PAGES);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!len || len &gt=
; PAGE_SIZE*MAX_ARG_PAGES)
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; len =3D strnlen_user((void __user *)p, MAX_ARG_STRLEN);<br>+=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; if (!len || len &gt; MAX_ARG_STRLEN)<br>&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0;<br>&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;p +=3D len;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>@@ -=
767,10 +767,6 @@ static int load_elf_binary(struct linux_
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br><br>&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/* OK, This is the point of no return */<=
br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; current-&gt;mm-&gt;start_data =3D =
0;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; current-&gt;mm-&gt;end_data =3D=
 0;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; current-&gt;mm-&gt;end_code =
=3D 0;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; current-&gt;mm-&gt;mmap =3D=
 NULL;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;current-&gt;flags &amp;=
=3D ~PF_FORKNOEXEC;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;curr=
ent-&gt;mm-&gt;def_flags =3D def_flags;<br><br>Index: linux/fs/binfmt_misc.=
c<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>---=20
linux.orig/fs/binfmt_misc.c<br>+++ linux/fs/binfmt_misc.c<br>@@ -126,7 +126=
,9 @@ static int load_misc_binary(struct linux<br>&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;goto=
 _ret;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (!(fmt-&gt=
;flags &amp; MISC_FMT_PRESERVE_ARGV0)) {<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp; remove_arg_zero(bprm);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; retval =3D remove_arg_zero(=
bprm);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp; if (retval)<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp; goto _ret;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;}<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (fmt-&gt=
;flags &amp; MISC_FMT_OPEN_BINARY) {
<br>Index: linux/fs/binfmt_script.c<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D<br>--- linux.orig/fs/binfmt_script.c<br>+++ linux/fs/binfmt=
_script.c<br>@@ -68,7 +68,9 @@ static int load_script(struct linux_binp
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; * This is done in reve=
rse order, because of how the<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; * user environment and arguments are stored.<br>&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; */<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; re=
move_arg_zero(bprm);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; retval =3D re=
move_arg_zero(bprm);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (retval)
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; return retval;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;retval =3D copy_strings_kernel(1, &amp;bprm-&gt;interp, bprm);<br>&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (retval &lt; 0) return retv=
al;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bprm-&gt;argc++;<br>=
Index: linux/fs/compat.c<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D
<br>--- linux.orig/fs/compat.c<br>+++ linux/fs/compat.c<br>@@ -1389,6 +1389=
,7 @@ static int compat_copy_strings(int argc,<br> {<br>&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;struct page *kmapped_page =3D NULL;<br>&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char *kaddr =3D NULL;<br>+&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; unsigned long kpos =3D 0;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int ret;<br><br>&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while (argc-- &gt; 0) {<br>@@ -139=
7,92 +1398,72 @@ static int compat_copy_strings(int argc,<br>&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;unsigned long pos;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (get_user(str, arg=
v+argc) ||<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; !(len =3D strnle=
n_user(compat_ptr(str), bprm-&gt;p))) {<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p; !(len =3D strnlen_user(compat_ptr(str), MAX_ARG_STRLEN))) {<br>&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ret =3D -EFAULT=
;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;g=
oto out;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;}<br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (bprm-&gt;p &lt; len)&nbsp;=
&nbsp;{<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp; if (MAX_ARG_STRLEN &lt; len) {<br>&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ret =3D -E2BIG;<br>&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;goto out;<br=
>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;}
<br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; bprm-&gt;p -=3D len;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* XXX: add architect=
ure specific overflow check here. */<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* We&#39;re going to wo=
rk our way backwords. */<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pos =3D bprm-&gt;p;
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; str +=3D len;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;p -=3D len;<br><br>&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;while (len &gt; 0) {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; int i, new, err;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int offset, bytes_to_copy;<br>-&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct page *page;
<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;offset =3D pos % PAGE_SIZE;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp; i =3D pos/PAGE_SIZE;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; page =3D bprm-&gt;page[i];<br>-&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; new =3D 0;<br>-&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!page) {
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; page =3D alloc_page(GFP_HIGHUSER);<br>-=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;page[i] =3D page;<br>-&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; if (!page) {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ret =3D -ENOMEM;
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (offset =
=3D=3D 0)<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; offset =3D PAGE_SIZE;<br>+<br>=
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bytes_to_copy =
=3D offset;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; i=
f (bytes_to_copy &gt; len)<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bytes_to_copy=
 =3D len;
<br>+<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; offset =
-=3D bytes_to_copy;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; pos -=3D bytes_to_copy;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; str -=3D bytes_to_copy;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; len -=3D bytes_to_copy;<br>+<br>+&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!kmapped_page || kpos !=3D=
 (pos &amp; PAGE_MASK)) {
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct page *page;<br>+<br>+&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp; ret =3D get_user_pages(current, bprm-&gt;mm, pos,<br>+&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;1, 1, 1, &amp;page, NULL);
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (ret &lt;=3D 0) {<br>+&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* We&#39;=
ve exceed the stack rlimit. */<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ret =3D -E2BIG;<br>&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;go=
to out;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>-&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp; new =3D 1;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp; }<br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; i=
f (page !=3D kmapped_page) {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (kmapped=
_page)
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (kmapped_page) {<br>&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;k=
unmap(kmapped_page);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; put_page(kmapped_page);<br>+&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; }
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;kmapped_page =3D page;<br>&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;kaddr =3D kmap(kmapped_page);<br>+&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; kpos =3D pos &amp; PAGE_MASK;<br>&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>-&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (new &amp;&amp; offset)
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; memset(kaddr, 0, offset);<br>-&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bytes_to_copy =3D PAGE_SIZ=
E - offset;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; i=
f (bytes_to_copy &gt; len) {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bytes_to_co=
py =3D len;
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (new)<br>-&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; memset(kaddr+offset+le=
n, 0,<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PAGE_SIZE-off=
set-len);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<b=
r>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; err =3D copy_fro=
m_user(kaddr+offset, compat_ptr(str),<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; bytes_to_copy);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp; if (err) {<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp; if (copy_from_user(kaddr+offset, compat_ptr(str),
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bytes_to_copy)) {<=
br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ret =3D -EFAULT;<br>&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;goto out;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>-<br>-&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pos +=3D bytes_to_copy;
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; str +=3D byt=
es_to_copy;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; l=
en -=3D bytes_to_copy;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;ret =3D 0;<br> out:<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (kmapped=
_page)<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (kmapped_page) {
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;kunmap(kmapped_page);<br>-&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; return ret;<br>-}<br>-<br>-#ifdef CONFIG_MMU<br>-<br>-#define =
free_arg_pages(bprm) do { } while (0)<br>-<br>-#else<br>-<br>-static inline=
 void free_arg_pages(struct linux_binprm *bprm)
<br>-{<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int i;<br>-<br>-&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp; for (i =3D 0; i &lt; MAX_ARG_PAGES; i++) {<br>-&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp; if (bprm-&gt;page[i])<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp; __free_page(bprm-&gt;page[i]);<br>-&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;page=
[i] =3D NULL;
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; put_page(kmapped_page);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;}<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return ret;<br> }=
<br><br>-#endif /* CONFIG_MMU */<br>-<br> /*<br>&nbsp;&nbsp;* compat_do_exe=
cve() is mostly a copy of do_execve(), with the exception<br>&nbsp;&nbsp;* =
that it processes 32 bit argv and envp pointers.
<br>@@ -1495,7 +1476,6 @@ int compat_do_execve(char * filename,<br>&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;struct linux_binprm *bprm;<br>&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;struct file *file;<br>&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int retval;<br>-&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; int i;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;retval =3D -ENOMEM;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b=
prm =3D kzalloc(sizeof(*bprm), GFP_KERNEL);
<br>@@ -1509,24 +1489,19 @@ int compat_do_execve(char * filename,<br><br>&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;sched_exec();<br><br>-&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;p =3D PAGE_SIZE*MAX_ARG_PAGES-sizeof=
(void *);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bprm-&gt;file =
=3D file;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bprm-&gt;filen=
ame =3D filename;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bprm-&gt;interp =3D fil=
ename;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;mm =3D mm_alloc();=
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; retval =3D -ENOMEM;<br>-&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp; if (!bprm-&gt;mm)<br>-&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; goto out_file;<=
br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; retval =3D init_new_context(cu=
rrent, bprm-&gt;mm);
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (retval &lt; 0)<br>-&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
goto out_mm;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; retval =3D bprm_mm_in=
it(bprm);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (retval)<br>+&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
; goto out_file;<br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;argc=
 =3D compat_count(argv, bprm-&gt;p / sizeof(compat_uptr_t));
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;argc =3D compat_count(ar=
gv, MAX_ARG_STRINGS);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if=
 ((retval =3D bprm-&gt;argc) &lt; 0)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;goto out_mm;<b=
r><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;envc =3D compat_count(=
envp, bprm-&gt;p / sizeof(compat_uptr_t));
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;envc =3D compat_count(en=
vp, MAX_ARG_STRINGS);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if=
 ((retval =3D bprm-&gt;envc) &lt; 0)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;goto out_mm;<b=
r><br>@@ -1551,10 +1526,8 @@ int compat_do_execve(char * filename,<br>&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (retval &lt; 0)
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;goto out;<br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp; retval =3D search_binary_handler(bprm, regs);<br>+&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp; retval =3D search_binary_handler(bprm,regs);<br>&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (retval &gt;=3D 0) {<br>-&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
 free_arg_pages(bprm);<br>-
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;/* execve success */<br>&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;secur=
ity_bprm_free(bprm);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;acct_update_integrals(current)=
;<br>@@ -1563,19 +1536,12 @@ int compat_do_execve(char * filename,<br>&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br><br>
 out:<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* Something went wrong, ret=
urn the inode and free the argument pages*/<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; for (i =3D 0 ; i &lt; MAX_ARG_PAGES ; i++) {<br>-&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct=
 page * page =3D bprm-&gt;page[i];<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (page)
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; __free_page(=
page);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>-<br>&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (bprm-&gt;security)<br>&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;security_bprm_free(bprm);<br><br> out_mm:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;if (bprm-&gt;mm)<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mmdrop(bprm-&gt;mm);
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; mmput (bprm-&gt;mm);<br><br> out_file:<br>&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (bprm-&gt;file) {<br>Index: linux/fs/exec.=
c<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>--- linux.orig=
/fs/exec.c<br>+++ linux/fs/exec.c
<br>@@ -174,6 +174,79 @@ exit:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;goto out;<br> }<br><br>+#ifdef CONFIG_STACK_GROWSUP<br>+#error I bro=
ke your build because I rearchitected the stack code, and I \<br>+&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp; don&#39;t have access to an architecture where =
CONFIG_STACK_GROWSUP is \
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; set.&nbsp;&nbsp;Please fixe this =
or send me a machine which I can test this on. \<br>+&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; \<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -- Ollie Wild &lt=
;<a href=3D"mailto:aaw@google.com">aaw@google.com</a>&gt;<br>+#endif<br>+<b=
r>+/* Create a new mm_struct and populate it with a temporary stack
<br>+ * vm_area_struct.&nbsp;&nbsp;We don&#39;t have enough context at this=
 point to set the<br>+ * stack flags, permissions, and offset, so we use te=
mporary values.&nbsp;&nbsp;We&#39;ll<br>+ * update them later in setup_arg_=
pages(). */<br>+int bprm_mm_init(struct linux_binprm *bprm)
<br>+{<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int err;<br>+&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp; struct mm_struct *mm =3D NULL;<br>+&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp; struct vm_area_struct *vma =3D NULL;<br>+<br>+&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;mm =3D mm =3D mm_alloc();<br>+&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; err =3D -ENOMEM;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; if (!mm)<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; goto err;
<br>+<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if ((err =3D init_new_contex=
t(current, mm)))<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; goto err;<br>+<br>+&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; bprm-&gt;vma =3D vma =3D kmem_cache_zalloc(vm_area_cachep, GFP_=
KERNEL);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; err =3D -ENOMEM;<br>+&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!vma)<br>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp; goto err;<br>+<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; down_wri=
te(&amp;mm-&gt;mmap_sem);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {<br>+&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp; vma-&gt;vm_mm =3D mm;<br>+<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* Place the stack at the =
top of user memory.&nbsp;&nbsp;Later, we&#39;ll<br>+&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;* =
move this to an appropriate place.&nbsp;&nbsp;We don&#39;t use STACK_TOP
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;* because that can depend on attributes which are=
n&#39;t<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;* configured yet. */<br>+&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; vma-&gt=
;vm_end =3D TASK_SIZE;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; vma-&gt;vm_start =3D vma-&gt;vm_end - =
PAGE_SIZE;
<br>+<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp; vma-&gt;vm_flags =3D VM_STACK_FLAGS;<br>+&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; vma-=
&gt;vm_page_prot =3D protection_map[vma-&gt;vm_flags &amp; 0x7];<br>+&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp; if ((err =3D insert_vm_struct(mm, vma))) {<br>+&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; up_write(&amp;mm-&gt;mmap_sem);
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; goto err;<br=
>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; }<br>+<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mm-&gt;stack_vm =3D mm-&gt;total_vm =3D 1;=
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; up_write(&amp;mm-&gt;mmap_sem);<br>+<br>+&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; bprm-&gt;p =3D vma-&gt;vm_end - sizeof(void *);
<br>+<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return 0;<br>+<br>+err:<br>+=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (vma) {<br>+&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;vma =
=3D NULL;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp; kmem_cache_free(vm_area_cachep, vma);<br>+&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>+<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
 if (mm) {<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;mm =3D NULL;
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; mmdrop(mm);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>+<=
br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return err;<br>+}<br>+<br>+EXPORT_=
SYMBOL(bprm_mm_init);<br>+<br> /*<br>&nbsp;&nbsp;* count() counts the numbe=
r of strings in array ARGV.<br>&nbsp;&nbsp;*/<br>@@ -199,15 +272,16 @@ stat=
ic int count(char __user * __user *
<br> }<br><br> /*<br>- * &#39;copy_strings()&#39; copies argument/environme=
nt strings from user<br>- * memory to free pages in kernel mem. These are i=
n a format ready<br>- * to be put directly into the top of new user memory.
<br>+ * &#39;copy_strings()&#39; copies argument/environment strings from t=
he old<br>+ * processes&#39;s memory to the new process&#39;s stack.&nbsp;&=
nbsp;The call to get_user_pages()<br>+ * ensures the destination page is cr=
eated and not swapped out.
<br>&nbsp;&nbsp;*/<br> static int copy_strings(int argc, char __user * __us=
er * argv,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;struct linux_binprm *bprm)<br> {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;struct page *kmapped_page =3D NULL;<br>&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char *kaddr =3D NULL;<br>+&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp; unsigned long kpos =3D 0;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int ret;<br><br>&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while (argc-- &gt; 0) {<br>@@ -216=
,69 +290,68 @@ static int copy_strings(int argc, char _<br>&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;unsigned long pos;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (get_user(str, argv+=
argc) ||<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; !(len =3D strnlen_user(str, bprm-&gt;p))) {=
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; !(len =3D strnlen_user(str, MAX_ARG_STR=
LEN))) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;ret =3D -EFAULT;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;goto out;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;}<br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (bprm-&gt;p &lt; len)&nbsp;=
&nbsp;{<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp; if (MAX_ARG_STRLEN &lt; len) {<br>&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ret =3D -E2BIG;<br>&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;goto out;<br=
>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;}
<br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp; bprm-&gt;p -=3D len;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* XXX: add architect=
ure specific overflow check here. */<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* We&#39;re going to wo=
rk our way backwords. */<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pos =3D bprm-&gt;p;
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; str +=3D len;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;p -=3D len;<br><br>&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;while (len &gt; 0) {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; int i, new, err;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int offset, bytes_to_copy;<br>-&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct page *page;
<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;offset =3D pos % PAGE_SIZE;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp; i =3D pos/PAGE_SIZE;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; page =3D bprm-&gt;page[i];<br>-&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; new =3D 0;<br>-&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!page) {
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; page =3D alloc_page(GFP_HIGHUSER);<br>-=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;page[i] =3D page;<br>-&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; if (!page) {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ret =3D -ENOMEM;
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (offset =
=3D=3D 0)<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; offset =3D PAGE_SIZE;<br>+<br>=
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bytes_to_copy =
=3D offset;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; i=
f (bytes_to_copy &gt; len)<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bytes_to_copy=
 =3D len;
<br>+<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; offset =
-=3D bytes_to_copy;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; pos -=3D bytes_to_copy;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; str -=3D bytes_to_copy;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; len -=3D bytes_to_copy;<br>+<br>+&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!kmapped_page || kpos !=3D=
 (pos &amp; PAGE_MASK)) {
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct page *page;<br>+<br>+&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp; ret =3D get_user_pages(current, bprm-&gt;mm, pos,<br>+&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;1, 1, 1, &amp;page, NULL);
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (ret &lt;=3D 0) {<br>+&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* We&#39;=
ve exceed the stack rlimit. */<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ret =3D -E2BIG;<br>&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;go=
to out;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>-&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp; new =3D 1;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp; }<br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; i=
f (page !=3D kmapped_page) {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (kmapped=
_page)
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (kmapped_page) {<br>&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;k=
unmap(kmapped_page);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; put_page(kmapped_page);<br>+&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; }
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;kmapped_page =3D page;<br>&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;kaddr =3D kmap(kmapped_page);<br>+&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; kpos =3D pos &amp; PAGE_MASK;<br>&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>-&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (new &amp;&amp; offset)
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; memset(kaddr, 0, offset);<br>-&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bytes_to_copy =3D PAGE_SIZ=
E - offset;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; i=
f (bytes_to_copy &gt; len) {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bytes_to_co=
py =3D len;
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (new)<br>-&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; memset(kaddr+offset+le=
n, 0,<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PAGE_SIZE-off=
set-len);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<b=
r>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; err =3D copy_fro=
m_user(kaddr+offset, str, bytes_to_copy);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; if (err) {<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp; if (copy_from_user(kaddr+offset, str, bytes_to_c=
opy)) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ret =3D -EFAULT;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;goto out;<br>&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>-<br>-&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pos +=3D bytes_to_copy;<br>-=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; str +=3D bytes_to=
_copy;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; len -=
=3D bytes_to_copy;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ret =3D 0;<br> out:=
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (kmapped_page)<br>+&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp; if (kmapped_page) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;kunma=
p(kmapped_page);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; put_page(kmapped_page);<br>+&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp; }<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return ret;<br> }<br><br>@@=
 -297,157 +370,79 @@ int copy_strings_kernel(int argc,char **<br><br> EXPOR=
T_SYMBOL(copy_strings_kernel);<br><br>-#ifdef CONFIG_MMU<br>-/*<br>- * This=
 routine is used to map in a page into an address space: needed by
<br>- * execve() for the initial stack and environment pages.<br>- *<br>- *=
 vma-&gt;vm_mm-&gt;mmap_sem is held for writing.<br>- */<br>-void install_a=
rg_page(struct vm_area_struct *vma,<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp; struct page *page, unsigned long address)
<br>-{<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct mm_struct *mm =3D vm=
a-&gt;vm_mm;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pte_t * pte;<br>-&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; spinlock_t *ptl;<br>-<br>-&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp; if (unlikely(anon_vma_prepare(vma)))<br>-&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; got=
o out;<br>-<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; flush_dcache_page(page=
);
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pte =3D get_locked_pte(mm, addres=
s, &amp;ptl);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!pte)<br>-&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp; goto out;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!pte_none(*pte))=
 {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp; pte_unmap_unlock(pte, ptl);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; goto out;<br>-&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inc_mm_counter(mm, anon_rss);<br>=
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; lru_cache_add_active(page);<br>-&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; set_pte_at(mm, address, pte, pte_mkdirty(pt=
e_mkwrite(mk_pte(<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp; page, vma-&gt;vm_page_prot))));
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; page_add_new_anon_rmap(page, vma,=
 address);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pte_unmap_unlock(pte, p=
tl);<br>-<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* no need for flush_tlb=
 */<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return;<br>-out:<br>-&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp; __free_page(page);<br>-&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; force_sig(SIGKILL, current);
<br>-}<br>-<br> #define EXTRA_STACK_VM_PAGES&nbsp;&nbsp; 20&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;/* random */<br><br>+/* Finalizes the stack vm_area_str=
uct.&nbsp;&nbsp;The flags and permissions are updated,<br>+ * the stack is =
optionally relocated, and some extra space is added.
<br>+ */<br> int setup_arg_pages(struct linux_binprm *bprm,<br>&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;unsigned long stack_top,<br>&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int executable_stack)<br> {<br>-&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; unsigned long stack_base;<br>-&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp; struct vm_area_struct *mpnt;
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unsigned long ret;<br>+&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp; unsigned long stack_base, stack_shift;<br>&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;struct mm_struct *mm =3D current-=
&gt;mm;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int i, ret;<br>-&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp; long arg_size;<br><br>-#ifdef CONFIG_STACK_GROWS=
UP<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* Move the argument and enviro=
nment strings to the bottom of the
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;* stack space.<br>-&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*/<br>-&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp; int offset, j;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; char =
*to, *from;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BUG_ON(stack_top &gt; =
TASK_SIZE);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BUG_ON(stack_top &amp;=
 ~PAGE_MASK);<br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* Start by shif=
ting all the pages down */
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; i =3D 0;<br>-&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp; for (j =3D 0; j &lt; MAX_ARG_PAGES; j++) {<br>-&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; s=
truct page *page =3D bprm-&gt;page[j];<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!page)<br>-&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; continue;<br>-&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
bprm-&gt;page[i++] =3D page;
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>-<br>-&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; /* Now move them within their pages */<br>-&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp; offset =3D bprm-&gt;p % PAGE_SIZE;<br>-&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp; to =3D kmap(bprm-&gt;page[0]);<br>-&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp; for (j =3D 1; j &lt; i; j++) {<br>-&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; memmove(to, =
to + offset, PAGE_SIZE - offset);
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; from =3D kmap(bprm-&gt;page[j]);<br>-&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; memcpy(to + P=
AGE_SIZE - offset, from, offset);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kunmap(bprm-&gt;page[j - 1]=
);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp; to =3D from;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br=
>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; memmove(to, to + offset, PAGE_SIZE -=
 offset);
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kunmap(bprm-&gt;page[j - 1]);<br>=
-<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* Limit stack size to 1GB */<br=
>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; stack_base =3D current-&gt;signal-&g=
t;rlim[RLIMIT_STACK].rlim_max;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if =
(stack_base &gt; (1 &lt;&lt; 30))<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; stack_base =3D 1 &lt;&lt; 3=
0;
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; stack_base =3D PAGE_ALIGN(stack_t=
op - stack_base);<br>-<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* Adjust b=
prm-&gt;p to point to the end of the strings. */<br>-&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; bprm-&gt;p =3D stack_base + PAGE_SIZE * i - offset;<br>-<br>=
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mm-&gt;arg_start =3D stack_base;
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; arg_size =3D i &lt;&lt; PAGE_SHIF=
T;<br>-<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* zero pages that were co=
pied above */<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; while (i &lt; MAX_AR=
G_PAGES)<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp; bprm-&gt;page[i++] =3D NULL;<br>-#else<br>-&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp; stack_base =3D arch_align_stack(stack_top - MAX=
_ARG_PAGES*PAGE_SIZE);
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; stack_base =3D arch_align_stack(s=
tack_top - mm-&gt;stack_vm*PAGE_SIZE);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;stack_base =3D PAGE_ALIGN(stack_base);<br>-&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp; bprm-&gt;p +=3D stack_base;<br>-&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp; mm-&gt;arg_start =3D bprm-&gt;p;<br>-&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; arg_size =3D stack_top - (PAGE_MASK &amp; (unsigned long) mm-&=
gt;arg_start);
<br>-#endif<br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; arg_size +=3D EXTR=
A_STACK_VM_PAGES * PAGE_SIZE;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; stac=
k_shift =3D (bprm-&gt;p &amp; PAGE_MASK) - stack_base;<br>+&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp; BUG_ON(stack_shift &lt; 0);<br>+&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; bprm-&gt;p -=3D stack_shift;<br>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mm-&gt;arg_start =3D bprm-&gt;p;<br><=
br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (bprm-&gt;loader)<br>=
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp; bprm-&gt;loader +=3D stack_base;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp; bprm-&gt;exec +=3D stack_base;<br>-<br>-&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; mpnt =3D kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!mpnt)<br>-&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return -=
ENOMEM;<br>-<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; memset(mpnt, 0, sizeo=
f(*mpnt));<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;loader -=3D stack_shift;<br>+&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;exec -=3D stack_shift;<br><br>&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;down_write(&amp;mm-&gt;mmap_sem);
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br>-&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mpnt-&g=
t;vm_mm =3D mm;<br>-#ifdef CONFIG_STACK_GROWSUP<br>-&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mpnt-&gt;vm_s=
tart =3D stack_base;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mpnt-&gt;vm_end =3D stack_base + arg_siz=
e;<br>-#else<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp; mpnt-&gt;vm_end =3D stack_top;
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; mpnt-&gt;vm_start =3D mpnt-&gt;vm_end - arg_size;<br>-#endif=
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; struct vm_area_struct *vma =3D bprm-&gt;vma;<br>+&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; s=
truct vm_area_struct *prev =3D NULL;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unsigned long vm_flags =
=3D vma-&gt;vm_flags;
<br>+<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/* Adjust stack execute permissions; explicit=
ly enable<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; * for EXSTACK_ENABLE_X, disable for EXST=
ACK_DISABLE_X<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; * and leave alone (arch default) oth=
erwise. */<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;if (unlikely(executable_stack =3D=3D EXSTACK_ENABLE_X)=
)<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mpnt-&gt;vm=
_flags =3D VM_STACK_FLAGS |&nbsp;&nbsp;VM_EXEC;<br>+&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; vm_flags |=3D VM_EXEC;<br>&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;else if (executable_stack =3D=3D EXSTACK_DISABLE_X)
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mpnt-&gt;vm_=
flags =3D VM_STACK_FLAGS &amp; ~VM_EXEC;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; else<br>-&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mpnt-&gt;vm_flags =3D VM_STA=
CK_FLAGS;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp; mpnt-&gt;vm_flags |=3D mm-&gt;def_flags;
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; mpnt-&gt;vm_page_prot =3D protection_map[mpnt-&gt;vm_flags &=
amp; 0x7];<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp; if ((ret =3D insert_vm_struct(mm, mpnt))) {<br>+&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; vm_flags &amp;=3D ~=
VM_EXEC;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp; vm_flags |=3D mm-&gt;def_flags;
<br>+<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp; ret =3D mprotect_fixup(vma, &amp;prev, vma-&gt;vm_start=
, vma-&gt;vm_end,<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; vm_flags);<br>+&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p; if (ret) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;up_write(&amp;mm-&gt;mmap_sem);
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kmem_cache_f=
ree(vm_area_cachep, mpnt);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;return ret;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>-&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
 mm-&gt;stack_vm =3D mm-&gt;total_vm =3D vma_pages(mpnt);<br>-&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp; }<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BUG_ON(prev !=3D vma);
<br>+<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp; /* Move stack pages down in memory. */<br>+&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if=
 (stack_shift) {<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp; /* This should be safe even with overlap because we<br>+&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;* are shifting down. =
*/
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ret =3D move=
_vma(vma, vma-&gt;vm_start,<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; vma-&gt;vm_end - vma-&gt;vm_start,<br>+=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp; vma-&gt;vm_end - vma-&gt;vm_start,
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; vma-&gt;vm_start - stack_shift);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp; if (ret &amp; ~PAGE_MASK) {<br>+&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp; up_write(&amp;mm-&gt;mmap_sem);<br>+&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp; return ret;
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>+&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp; }<br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for (i =3D 0 ; i &lt; MA=
X_ARG_PAGES ; i++) {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct page *page =3D bprm-&gt;page[i];<=
br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp; if (page) {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; bprm-&gt;page[i] =3D NULL;
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; install_arg_=
page(mpnt, page, stack_base);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // Expand the stack.<br>+&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp; vma =3D find_vma(mm, bprm-&gt;p);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BUG_ON(!vma || bprm-&gt=
;p &lt; vma-&gt;vm_start);
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; if (expand_stack(vma, stack_base -<br>+&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; EXTRA_STACK_VM_PA=
GES * PAGE_SIZE)) {<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; up_write(&amp;mm-&gt;mmap_sem);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp; return -EFAULT;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;}<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; stack_base +=3D PAGE_SIZE;<br>&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;up_write(&amp;mm-&gt;mmap_sem);<br><br>@@ -456,23 +45=
1,6 @@ int setup_arg_pages(struct linux_binprm<br><br> EXPORT_SYMBOL(setup_=
arg_pages);
<br><br>-#define free_arg_pages(bprm) do { } while (0)<br>-<br>-#else<br>-<=
br>-static inline void free_arg_pages(struct linux_binprm *bprm)<br>-{<br>-=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int i;<br>-<br>-&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; for (i =3D 0; i &lt; MAX_ARG_PAGES; i++) {<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp; if (bprm-&gt;page[i])<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp; __free_page(bprm-&gt;page[i]);<br>-&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;p=
age[i] =3D NULL;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>-}<br>-<br>-=
#endif /* CONFIG_MMU */<br>-<br> struct file *open_exec(const char *name)
<br> {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;struct nameidata =
nd;<br>@@ -993,8 +971,10 @@ void compute_creds(struct linux_binprm *<br><br=
> EXPORT_SYMBOL(compute_creds);<br><br>-void remove_arg_zero(struct linux_b=
inprm *bprm)<br>+int remove_arg_zero(struct linux_binprm *bprm)
<br> {<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int ret =3D 0;<br>+<br>&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (bprm-&gt;argc) {<br>&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;unsigned long offset;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char * kaddr;<b=
r>@@ -1008,13 +988,23 @@ void remove_arg_zero(struct linux_binprm<br>&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;continue;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;of=
fset =3D 0;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;kunmap_atomic(kaddr, KM_USER0);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp; put_page(page);<br> inside:<br>-&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; page =3D bprm-&gt;page[bprm-&gt;=
p/PAGE_SIZE];
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ret =3D get_=
user_pages(current, bprm-&gt;mm, bprm-&gt;p,<br>+&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;1, 0, 1, &amp;page, NULL);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp; if (ret &lt;=3D 0) {<br>+&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp; ret =3D -EFAULT;
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; goto out;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;kaddr =3D kmap_atomic(page, KM_USER0);<br>&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;kunmap_atomic(kaddr, KM_USER0=
);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;bprm-&gt;argc--;
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; ret =3D 0;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;}<br>+<br>+out:<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return ret;<br> =
}<br><br> EXPORT_SYMBOL(remove_arg_zero);<br>@@ -1041,7 +1031,7 @@ int sear=
ch_binary_handler(struct linux_b<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;fput(bprm-&gt;file=
);
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;bprm-&gt;file =3D NULL;<br><br>-&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; loader =
=3D PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; loader =3D bprm-&=
gt;vma-&gt;vm_end - sizeof(void *);<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;file =3D op=
en_exec(&quot;/sbin/loader&quot;);
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;retval =3D PTR_ERR(file);<br>@@ -1134,7 +1124,6 @@=
 int do_execve(char * filename,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;struct linux_binprm *bprm;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;struct file *file;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;int retval;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int i;<br><br>&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;retval =3D -ENOMEM;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bprm =3D kzalloc(sizeof=
(*bprm), GFP_KERNEL);<br>@@ -1148,25 +1137,19 @@ int do_execve(char * filen=
ame,<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;sched_exec();<b=
r><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;p =3D PAGE_SIZE*MAX_AR=
G_PAGES-sizeof(void *);<br>-<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;bprm-&gt;file =3D file;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bprm-&gt;filename =3D f=
ilename;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bprm-&gt;interp=
 =3D filename;<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;mm =3D mm_=
alloc();<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; retval =3D -ENOMEM;<br>-&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!bprm-&gt;mm)<br>-&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; goto ou=
t_file;<br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; retval =3D init_new_co=
ntext(current, bprm-&gt;mm);
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (retval &lt; 0)<br>-&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
goto out_mm;<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; retval =3D bprm_mm_in=
it(bprm);<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (retval)<br>+&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
; goto out_file;<br><br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;argc=
 =3D count(argv, bprm-&gt;p / sizeof(void *));
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;argc =3D count(argv, MAX=
_ARG_STRINGS);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if ((retv=
al =3D bprm-&gt;argc) &lt; 0)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;goto out_mm;<br><br>-=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;envc =3D count(envp, bprm-&gt=
;p / sizeof(void *));<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bprm-&gt;env=
c =3D count(envp, MAX_ARG_STRINGS);
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if ((retval =3D bprm-&g=
t;envc) &lt; 0)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;goto out_mm;<br><br>@@ -1193,8 +117=
6,6 @@ int do_execve(char * filename,<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;retval =3D search_binary_handler(bprm,regs);<br>&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (retval &gt;=3D 0) {
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; free_arg_pages(bprm);<br>-<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/* execve=
 success */<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;security_bprm_free(bprm);<br>&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;acct_update_integrals(current);<br>@@ -1203,19 +1184,12 @@ int d=
o_execve(char * filename,
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br><br> out:<br>-&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /* Something went wrong, return the inode =
and free the argument pages*/<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for =
(i =3D 0 ; i &lt; MAX_ARG_PAGES ; i++) {<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct page * page =
=3D bprm-&gt;page[i];
<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; if (page)<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp; __free_page(page);<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<b=
r>-<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (bprm-&gt;securit=
y)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;security_bprm_free(bprm);<br><br> out_mm:<br>&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (bprm-&gt;mm)<br>-&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
 mmdrop(bprm-&gt;mm);
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; mmput (bprm-&gt;mm);<br><br> out_file:<br>&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (bprm-&gt;file) {<br>Index: linux/include/=
linux/binfmts.h<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br=
>--- linux.orig/include/linux/binfmts.h
<br>+++ linux/include/linux/binfmts.h<br>@@ -5,12 +5,9 @@<br><br> struct pt=
_regs;<br><br>-/*<br>- * MAX_ARG_PAGES defines the number of pages allocate=
d for arguments<br>- * and envelope for the new program. 32 should suffice,=
 this gives
<br>- * a maximum env+arg of 128kB w/4KB pages!<br>- */<br>-#define MAX_ARG=
_PAGES 32<br>+/* FIXME: Find real limits, or none. */<br>+#define MAX_ARG_S=
TRLEN (PAGE_SIZE * 32)<br>+#define MAX_ARG_STRINGS 0x7FFFFFFF<br><br> /* si=
zeof(linux_binprm-&gt;buf) */
<br> #define BINPRM_BUF_SIZE 128<br>@@ -22,7 +19,7 @@ struct pt_regs;<br>&n=
bsp;&nbsp;*/<br> struct linux_binprm{<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;char buf[BINPRM_BUF_SIZE];<br>-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; struct page *page[MAX_ARG_PAGES];<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; struct vm_area_struct *vma;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;struct mm_struct *mm;<b=
r>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;unsigned long p; /* curre=
nt top of mem */<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int sh_=
bang;<br>@@ -65,7 +62,7 @@ extern int register_binfmt(struct linux_<br> ext=
ern int unregister_binfmt(struct linux_binfmt *);
<br><br> extern int prepare_binprm(struct linux_binprm *);<br>-extern void =
remove_arg_zero(struct linux_binprm *);<br>+extern int __must_check remove_=
arg_zero(struct linux_binprm *);<br> extern int search_binary_handler(struc=
t linux_binprm *,struct pt_regs *);
<br> extern int flush_old_exec(struct linux_binprm * bprm);<br><br>@@ -82,6=
 +79,7 @@ extern int suid_dumpable;<br> extern int setup_arg_pages(struct l=
inux_binprm * bprm,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unsigned long stack_top,
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp; int executable_stack);<br>+extern int bprm_mm_init(struct linux_=
binprm *bprm);<br> extern int copy_strings_kernel(int argc,char ** argv,str=
uct linux_binprm *bprm);<br> extern void compute_creds(struct linux_binprm =
*binprm);
<br> extern int do_coredump(long signr, int exit_code, struct pt_regs * reg=
s);<br>Index: linux/include/linux/mm.h<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D<br>--- linux.orig/include/linux/mm.h
<br>+++ linux/include/linux/mm.h<br>@@ -775,7 +775,6 @@ static inline int h=
andle_mm_fault(struct<br><br> extern int make_pages_present(unsigned long a=
ddr, unsigned long end);<br> extern int access_process_vm(struct task_struc=
t *tsk, unsigned long addr, void *buf, int len, int write);
<br>-void install_arg_page(struct vm_area_struct *, struct page *, unsigned=
 long);<br><br> int get_user_pages(struct task_struct *tsk, struct mm_struc=
t *mm, unsigned long start,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int len, int write, int=
 force, struct page **pages, struct vm_area_struct **vmas);
<br>@@ -791,9 +790,15 @@ int FASTCALL(set_page_dirty(struct page<br> int se=
t_page_dirty_lock(struct page *page);<br> int clear_page_dirty_for_io(struc=
t page *page);<br><br>+extern unsigned long move_vma(struct vm_area_struct =
*vma,
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp; unsigned long old_addr, unsigned long old_len,<br>+&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
 unsigned long new_len, unsigned long new_addr);<br> extern unsigned long d=
o_mremap(unsigned long addr,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unsigned lon=
g old_len, unsigned long new_len,
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unsigned long flags, unsigned long new_a=
ddr);<br>+extern int mprotect_fixup(struct vm_area_struct *vma,<br>+&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; struct vm_ar=
ea_struct **pprev, unsigned long start,<br>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; unsi=
gned long end, unsigned long newflags);<br><br> /*<br>&nbsp;&nbsp;* Prototy=
pe to add a shrinker callback for ageable caches.<br>Index: linux/kernel/au=
ditsc.c<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
<br>--- linux.orig/kernel/auditsc.c<br>+++ linux/kernel/auditsc.c<br>@@ -17=
55,6 +1755,10 @@ int __audit_ipc_set_perm(unsigned long q<br><br> int audit=
_bprm(struct linux_binprm *bprm)<br> {<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp; /* FIXME: Don&#39;t do anything for now until I figure out how to hand=
le
<br>+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;* this.&nbsp;&nbsp;Wit=
h the latest changes, kmalloc could well fail under good<br>+&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;* scenarios. */<br>+#if 0<br>&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;struct audit_aux_data_execve *ax;<br>&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;struct audit_context *context=
 =3D current-&gt;audit_context;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;unsigned long p, next;<=
br>@@ -1782,6 +1786,7 @@ int audit_bprm(struct linux_binprm *bprm<br>&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ax-&gt;d.type =3D AUDIT_EXECVE;<b=
r>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ax-&gt;d.next =3D context=
-&gt;aux;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;context-&gt;au=
x =3D (void *)ax;
<br>+#endif<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0;<br=
> }<br><br>Index: linux/mm/mprotect.c<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D<br>--- linux.orig/mm/mprotect.c<br>+++ linux/mm/mprotect=
.c<br>@@ -128,7 +128,7 @@ static void change_protection(struct vm_
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;flush_tlb_range(vma, st=
art, end);<br> }<br><br>-static int<br>+int<br> mprotect_fixup(struct vm_ar=
ea_struct *vma, struct vm_area_struct **pprev,<br>&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;unsigned long start, unsigned long end, unsigned lon=
g newflags)
<br> {<br>Index: linux/mm/mremap.c<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D<br>--- linux.orig/mm/mremap.c<br>+++ linux/mm/mremap.c<br>@=
@ -155,7 +155,7 @@ static unsigned long move_page_tables(st
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return len + old_addr -=
 old_end;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/* how much done *=
/<br> }<br><br>-static unsigned long move_vma(struct vm_area_struct *vma,<b=
r>+unsigned long move_vma(struct vm_area_struct *vma,<br>&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;unsigned long old_addr, unsigned long old_len,
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;unsigned long new_len, unsigned long new_addr)<br>=
 {<br></blockquote></div><br>

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Xref: news.gmane.org gmane.linux.ports.parisc:24185

On 12/29/06, Ingo Molnar <mingo@elte.hu> wrote:
>
> what is keeping this fix from going upstream?
>

There are still a couple outstanding issues which need to be resolved
before this is ready for inclusion in the mainline kernel.

The main one is support for CONFIG_STACK_GROWSUP, which I think is
just parisc.  I've been meaning to look into this for a while, but I
was out of commision for most of November so it got punted to the back
burner.  I'll try to revisit it soonish.  If someone from the
parisc-linux list wants to take a look, though, that's fine by me.

The other is support for the various executable formats.  I've tested
elf and script pretty thoroughly, but I'm not sure how to go about
testing most of the others -- does anyone use aout anymore?  Maybe the
solution is just to check it in and wait to see if someone complains.

Ollie
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Subject: Re: [parisc-linux] timing bug in clone() ? [BUGFIX-PATCH attached]
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Xref: news.gmane.org gmane.linux.ports.parisc:24186

On Sat Dec 30 2006, Randolph Chung wrote:
> Helge Deller wrote:
> > Help !
> > 
> > I'm trying to find the reason, why the program below segfaults on parisc.
> > if you change the "#if 0" to "#if 1", then it works without segfaulting.
> > 
> > To me it seems we have some kind of race in the linux kernel, e.g.
> > thread exits, wants to notify parent, but parent hasn't returned from clone() call... ?!?
> > 
> > Any ideas ?
> 
> We have some other problems that may be related to this. It might be a
> race in how signals are delivered. We hit some problems with multiple
> threads that seems somewhat similar.  See thread_test2.c in our
> userspace cvs repo. It *might* be the same problem.
> 
> Sorry I don't have any ideas what the real problem is. I tried to debug
> this a bit but reach any conclusions. It might be because our fork() is
> quite slow because of all the cache flushing.

Thanks Randolph !

I've found the bug now... :-)
Patch is attached below, and the problem was not in the kernel, but in glibc.

The first hunk in the patch below ("Save the PIC register.") is the fix for the arguments check which I posted before (http://lists.parisc-linux.org/pipermail/parisc-linux/2006-December/031029.html). This hunk fixes LTP's clone04 test.

The second and third hunk fixes the "return 0" bug as reported by LTP's clone06 test.
It first saves the current FPIC register on the child's stack (to %arg0 instead of %sr0,%sp) and later reads it back from there in the third hunk just before calling _exit().
That way the PIC register has the correct value and exit() doesn't crashes any more.

Now all clone()-tests from LTP succeeds :-)

Helge


--- glibc-2.3.6.ds1/build-tree/glibc-2.3.6/debian/sysdeps/unix/sysv/linux/hppa/clone.S.org	2006-12-29 08:49:25.000000000 +0100
+++ glibc-2.3.6.ds1/build-tree/glibc-2.3.6/debian/sysdeps/unix/sysv/linux/hppa/clone.S	2007-01-01 19:53:00.000000000 +0100
@@ -32,6 +32,11 @@
 ENTRY(__clone)
 	/* FIXME: I have no idea how profiling works on hppa. */
 
+	/* Save the PIC register. */
+#ifdef PIC
+	stw	%r19,-32(%sr0, %sp)	/* parent */
+#endif
+
 	/* Sanity check arguments.  */
 	comib,=  0,%arg0,.Lerror        /* no NULL function pointers */
 	ldi     -EINVAL,%ret0
@@ -41,10 +46,8 @@
 	/* Save the fn ptr and arg on the new stack.  */
 	stwm    %arg0,64(%arg1)
 	stw	%arg3,-60(%arg1)

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Subject: [parisc-linux] Re: [patch] remove MAX_ARG_PAGES
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Cc: Andrew Morton <akpm@osdl.org>,
 linux-arch@vger.kernel.org,
 Peter Zijlstra <a.p.zijlstra@chello.nl>,
 Andi Kleen <ak@muc.de>,
 linux-kernel@vger.kernel.org,
 David Howells <dhowells@redhat.com>,
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Hi!

> FYI, i have forward ported your MAX_ARG_PAGES limit removal patch to 
> 2.6.20-rc2 and have included it in the -rt kernel. It's working great - 
> i can now finally do a "ls -t patches/*.patch" in my patch repository - 
> something i havent been able to do for years ;-)
> 
> what is keeping this fix from going upstream?

+1

I like this. I've been running with MAX_ARG_PAGES raised to insane
value, and I'd love to get rid of that hack.

							Pavel
-- 
Thanks for all the (sleeping) penguins.
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Ollie Wild <aaw@google.com> wrote:

> - I haven't tested this on a NOMMU architecture.  Could someone please
> validate this?

There are a number of potential problems with NOMMU:

 (1) The argument data is copied twice (once into kernel memory and once out
     of kernel memory).

 (2) The permitted amount of argument data is governed by the stack size of
     the program to be exec'd.  You should assume that NOMMU stacks cannot
     grow.

 (3) VMAs on NOMMU are a shared resource.

However, we might be able to extend your idea to improve things.  If we work
out the stack size required earlier, we can allocate the VMA and the memory
for the stack *before* we reach the point of no return.  We can then fill in
the stack and load up all the parameters *before* releasing the original
executable.  That would eliminate one of the copied mentioned in (1).  Working
out the stack size earlier may be difficult though, as we may need to load the
interpreter header before we can do so.

Overall, I don't think there should be too many problems with this for NOMMU.

David
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Ingo Molnar <mingo@elte.hu> wrote:

> FYI, i have forward ported your MAX_ARG_PAGES limit removal patch to 
> 2.6.20-rc2 and have included it in the -rt kernel. It's working great - 
> i can now finally do a "ls -t patches/*.patch" in my patch repository - 
> something i havent been able to do for years ;-)

I get a NULL kernel pointer reference with this patch with FRV in MMU mode.
It's whilst the kernel is attempting to execute init:

(gdb) bt
#0  0xc0063d54 in do_anonymous_page (mm=0xc05c1a04, vma=0xc05c884c, address=3221225457, page_table=0xdc00bffc, pmd=0xc05c6f00, write_access=0) at pgtable.h:525
#1  0xc006468c in __handle_mm_fault (mm=0xbffffff1, vma=0xc05c884c, address=3691036668, write_access=1) at memory.c:2404
#2  0xc0061c18 in get_user_pages (tsk=0xc034eba0, mm=0xc05c1a04, start=3221225457, len=1, write=1, force=0, pages=0xc0353b80, vmas=0x0) at memory.c:1064
#3  0xc0084c7c in copy_strings (argc=0, argv=0xc0388c3c, bprm=0xc0388b88) at exec.c:326
#4  0xc0084dac in copy_strings_kernel (argc=1, argv=0xc05c884c, bprm=0xbffffff1) at exec.c:365
#5  0xc0085f5c in do_execve (filename=0xc0387000 "/sbin/init", argv=0xc026e8c8, envp=0xc026e950, regs=0xc0353bf8) at exec.c:1158
#6  0xc000f55c in sys_execve (name=0x1 <Address 0x1 out of bounds>, argv=0xc026e8c8, envp=0xc026e950) at process.c:263
#7  0xc000e1e0 in __syscall_call () at arch/frv/kernel/entry.S:878
#8  0xc000e1e0 in __syscall_call () at arch/frv/kernel/entry.S:878

The problem appears to be that current->mm is NULL.  It's a bit difficult to
say for sure because gdb or gcc determined that the error is in pgtable.h, but
doesn't seem to have determined which one.

However, looking at the code, I think it must be this:

	static int do_anonymous_page(struct mm_struct *mm, ...)
	{
		...
		update_mmu_cache(vma, address, entry);
		...
	}

But that uses current->mm, which is NULL, via this function:

	[include/asm-frv/pgtable.h]

	/* * preload information about a newly instantiated PTE into the SCR0/SCR1 PGE
	cache */

	static inline void update_mmu_cache(struct vm_area_struct *vma,
					unsigned long address, pte_t pte)
	{
		unsigned long ampr;
		pgd_t *pge = pgd_offset(current->mm, address);
		pud_t *pue = pud_offset(pge, address);
		pmd_t *pme = pmd_offset(pue, address);

		ampr = pme->ste[0] & 0xffffff00;
		ampr |= xAMPRx_L | xAMPRx_SS_16Kb | xAMPRx_S | xAMPRx_C | xAMPRx_V;

		asm volatile("movgs %0,scr0\n"
			     "movgs %0,scr1\n"
			     "movgs %1,dampr4\n"
			     "movgs %1,dampr5\n"
			     :
			     : "r"(address), "r"(ampr)
			     );
	}

This really oughtn't to be called in this situation, I suspect.  I could just
skip the operation if current->mm is NULL, but I'm not sure that that's the
right thing to do.  Maybe I should be using current->active_mm instead.

Everything works fine without the patch.

David
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The 32bit and 64bit PARISC Linux kernels suffers from the problem, that the gettimeofday() call sometimes returns non-monotonic times.
The easiest way to fix this, is to drop the PARISC-specific implementation and switch over to the generic TIME_INTERPOLATION framework.
But in order to make it even compile on 32bit PARISC, the patch below which touches the generic Linux code, is mandatory. 
More information and the full patch with the parisc-specific changes is included in this thread: http://lists.parisc-linux.org/pipermail/parisc-linux/2006-December/031003.html

As far as I could see, this patch does not change anything for the existing architectures which use this framework (IA64 and SPARC64), since "cycles_t" is defined there as unsigned 64bit-integer anyway (which then makes this patch a no-change for them).

Ok, not Ok ?

Regards, Helge


Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/include/linux/timex.h b/include/linux/timex.h
index db501dc..9a24e50 100644
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -255,10 +255,10 @@ struct time_interpolator {
 	u8 jitter;			/* if set compensate for fluctuations */
 	u32 nsec_per_cyc;		/* set by register_time_interpolator() */
 	void *addr;			/* address of counter or function */
-	u64 mask;			/* mask the valid bits of the counter */
+	cycles_t mask;			/* mask the valid bits of the counter */
 	unsigned long offset;		/* nsec offset at last update of interpolator */
 	u64 last_counter;		/* counter value in units of the counter at last update */
-	u64 last_cycle;			/* Last timer value if TIME_SOURCE_JITTER is set */
+	cycles_t last_cycle;		/* Last timer value if TIME_SOURCE_JITTER is set */
 	u64 frequency;			/* frequency in counts/second */
 	long drift;			/* drift in parts-per-million (or -1) */
 	unsigned long skips;		/* skips forward */
diff --git a/kernel/timer.c b/kernel/timer.c
index c2a8ccf..d38801a 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1624,7 +1624,7 @@ struct time_interpolator *time_interpola
 static struct time_interpolator *time_interpolator_list __read_mostly;
 static DEFINE_SPINLOCK(time_interpolator_lock);
 
-static inline u64 time_interpolator_get_cycles(unsigned int src)
+static inline cycles_t time_interpolator_get_cycles(unsigned int src)
 {
 	unsigned long (*x)(void);
 
@@ -1650,8 +1650,8 @@ static inline u64 time_interpolator_get_
 
 	if (time_interpolator->jitter)
 	{
-		u64 lcycle;
-		u64 now;
+		cycles_t lcycle;
+		cycles_t now;
 
 		do {
 			lcycle = time_interpolator->last_cycle;
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On Tue, Jan 02, 2007 at 10:33:25PM +0100, Helge Deller wrote:
> Ok, not Ok ?

Um, this is still doing cmpxchg() with insufficient locking.  So, not
OK.



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> The 32bit and 64bit PARISC Linux kernels suffers from the problem, that the gettimeofday() call sometimes returns non-monotonic times.

This certainly needs to be fixed.  I see stuff like this from ping:

64 bytes from 132.246.100.193: icmp_seq=19 ttl=255 time=0.4 ms
64 bytes from 132.246.100.193: icmp_seq=20 ttl=255 time=429496729.5 ms

tar also occasionally prints warning about times.  This is with a
32bit kernel.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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>     4031104c:   4a 9c 01 e8     ldw f4(r20),ret0
> 
> It seems like there must be some way to get to 4031104c avoiding the
> on r20/ret0.  Don't see any branches to the region between 40311024
> and 40311044 in the function, or any other direct branches to 4031104c.

Sorry, I was thinking this was a null pointer deref.  Actually, it would
appear to be a misaligned load.  r20 contains 0x3c353e25733a2046.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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> expect (pid 20348): Protection id trap (code 27)
> Backtrace:
>       _______________________________
>      < Your System ate a SPARC! Gah! >

It looks like show_stack is broken.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
_______________________________________________
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From: Mike Frysinger <vapier@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] fix error condition in glibc's clone() call
Date: Wed, 3 Jan 2007 00:37:11 -0500
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Cc: "Helge Deller" <deller@gmx.de>,
 parisc-linux@lists.parisc-linux.org,
 "Joel Soete" <soete.joel@tiscali.be>
To: "Carlos O'Donell" <carlos@systemhalted.org>
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On Wednesday 03 January 2007 00:08, Carlos O'Donell wrote:
> On 1/3/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> > On 1/2/07, Mike Frysinger <vapier@gentoo.org> wrote:
> > > when it comes to parisc sources, are we supposed to be looking at the
> > > FSF glibc cvs or the parisc glibc cvs ?  they often seem way out of
> > > sync ...
> >
> > glibc cvs.
>
> Though... your distro may not be completely up to date.
> We are in the middle of brining NPTL + TLS out ot "alpha" status for hppa.

i've been following the nptl stuff and yes Gentoo is out of date ... we're =
on=20
glibc-2.3.6 + linuxthreads

i was asking for personal preference when investigating things ... want to=
=20
make sure i'm looking at the latest code when i send fixes ;)
=2Dmike

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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] PA8800 Status (Happy New Year)
Date: Wed, 3 Jan 2007 00:24:18 -0700
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On Tue, Jan 02, 2007 at 07:58:56PM -0500, John David Anglin wrote:
> I spent the last couple of days updating the kernel and userspace
> software on the pa8800 that I have (ior).  The good news is that
> the machine is now much more stable than it was.  ssh seems to
> work.  I've even been able to do a full GCC build on it.  Thanks
> to all for the fixes!

Happy New Year!
Wow! That is good!

> The bad news.  The system died almost immediately starting the
> gcc testsuite:
> 
> >From the console log:
> 
> expect (pid 20348): Protection id trap (code 27)
> Backtrace:
>       _______________________________
>      < Your System ate a SPARC! Gah! >
>       -------------------------------
>              \   ^__^
>               \  (xx)\_______
>                  (__)\       )\/\
>                   U  ||----w |
>                      ||     ||
> expect (pid 20348): Protection id trap (code 27)
> Backtrace:
>       _______________________________
>      < Your System ate a SPARC! Gah! >
> 
> [repeats a number of times]
> 
> Backtrace:
> 
> 
> Bad Address (null pointer deref?): Code=15 regs=0000000245b4f590 (Addr=00000625733a213a)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001001011110100001111 Not tainted
> r00-03  000000ff0804bd0f 000000004050f8c0 0000000040311010 0000000084f664ff
> r04-07  00000000405038c0 0000000000000002 0000000084f664c1 000000007fe0a000
> r08-11  0000000000000000 000000007fe0a000 00000000000002b1 000000007ea85600
> r12-15  000000004f2241c0 000000007e96c000 000000007fe0a000 0000000000000040
> r16-19  0000000000000000 000000007fe0a494 000000007ad0b012 00000000404ba2d4
> r20-23  3c353e25733a2046 000000004050f8c0 000000007fe0a000 0000000000000000
> r24-27  0000000084f664c1 0000000000013c43 0000000078340400 00000000405038c0
> r28-31  0000000000000003 0000000245b4f560 0000000245b4f590 00000000404ba2c0
> sr00-03  0000000001436800 0000000000000000 0000000000000000 0000000001436800
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004031104c 0000000040311050

This looks like userspace. Odd.

>  IIR: 4a9c01e8    ISR: 000000003c353800  IOR: 00000625733a213a

And the IOR looks like garbage. :(

>  CPU:        0   CR30: 0000000241ee0000 CR31: 00000000404c4000
>  ORIG_R28: 00000054000000c8
>  IAOQ[0]: ip_route_input+0xb4/0xca8
>  IAOQ[1]: ip_route_input+0xb8/0xca8
>  RP(r2): ip_route_input+0x78/0xca8
> Kernel panic - not syncing: Bad Address (null pointer deref?)
>  <0>Rebooting in 5 seconds..

Right now, I don't trust the backtrace. *sigh*

FYI, ioz (800Mhz pa8800) crashed when booting 2.6.20-rc2.
I'm still looking at the PIM dump.
Last output was from ide driver. I'll try to disable DMA
and see if that works better.

cheers,
grant

> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
_______________________________________________
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Subject: Re: [PATCH] fix error condition in glibc's clone() call
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Cc: "Helge Deller" <deller@gmx.de>,
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 "Joel Soete" <soete.joel@tiscali.be>
To: "Carlos O'Donell" <carlos@systemhalted.org>
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On Tuesday 02 January 2007 19:29, Carlos O'Donell wrote:
> This is already fixed in upstream. Where are you getting your glibc
> sources from?

when it comes to parisc sources, are we supposed to be looking at the FSF=20
glibc cvs or the parisc glibc cvs ?  they often seem way out of sync ...
=2Dmike

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On 02/01/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> > For those interested in playing along, I'm putting the .deb's that I'm
> > In particular, this features NPTL and TLS, although with 2.6.20-rc2
> > I'm still seeing the glibc failures that Carlos reported on September
> > 6th[0], not the much-reduced set he reported on September 13th[1].
> >
> > [0] http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030146.html
> > [1] http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030197.html
>
> This is because [1] is a mistake. In [1] the LWS CAS was disabled and
> I accidentally ran the tests with the non-atomic versions.

Ah, okay.  I'd been hacking assuming that I should be able to
reproduce those results.  At least my setup isn't broken.

BTW, I have a patch for upstream to use the right define for LWS CAS
if you don't have it.  Current libc head doesn't build without it
anymore.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: [parisc-linux] PA8800 Status (Happy New Year)
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I spent the last couple of days updating the kernel and userspace
software on the pa8800 that I have (ior).  The good news is that
the machine is now much more stable than it was.  ssh seems to
work.  I've even been able to do a full GCC build on it.  Thanks
to all for the fixes!

The bad news.  The system died almost immediately starting the
gcc testsuite:

>>>From the console log:

expect (pid 20348): Protection id trap (code 27)
Backtrace:
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
expect (pid 20348): Protection id trap (code 27)
Backtrace:
      _______________________________
     < Your System ate a SPARC! Gah! >

[repeats a number of times]

Backtrace:


Bad Address (null pointer deref?): Code=15 regs=0000000245b4f590 (Addr=00000625733a213a)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001011110100001111 Not tainted
r00-03  000000ff0804bd0f 000000004050f8c0 0000000040311010 0000000084f664ff
r04-07  00000000405038c0 0000000000000002 0000000084f664c1 000000007fe0a000
r08-11  0000000000000000 000000007fe0a000 00000000000002b1 000000007ea85600
r12-15  000000004f2241c0 000000007e96c000 000000007fe0a000 0000000000000040
r16-19  0000000000000000 000000007fe0a494 000000007ad0b012 00000000404ba2d4
r20-23  3c353e25733a2046 000000004050f8c0 000000007fe0a000 0000000000000000
r24-27  0000000084f664c1 0000000000013c43 0000000078340400 00000000405038c0
r28-31  0000000000000003 0000000245b4f560 0000000245b4f590 00000000404ba2c0
sr00-03  0000000001436800 0000000000000000 0000000000000000 0000000001436800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004031104c 0000000040311050
 IIR: 4a9c01e8    ISR: 000000003c353800  IOR: 00000625733a213a
 CPU:        0   CR30: 0000000241ee0000 CR31: 00000000404c4000
 ORIG_R28: 00000054000000c8
 IAOQ[0]: ip_route_input+0xb4/0xca8
 IAOQ[1]: ip_route_input+0xb8/0xca8
 RP(r2): ip_route_input+0x78/0xca8
Kernel panic - not syncing: Bad Address (null pointer deref?)
 <0>Rebooting in 5 seconds..

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Carlos O'Donell" <carlos@systemhalted.org>
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To: debian-hppa@lists.debian.org,
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On 12/25/06, Frans Pop <elendil@planet.nl> wrote:
> I would suggest at least the following changes:
> HPPA: add Kyle McMartin
> Note: you may also wish to review and update the port pages under [2].
>
> Cheers,
> FJP
>
> [1] http://www.debian.org/intro/organization
> [2] http://www.debian.org/ports/

Kyle,

Would you like my help? I wouldn't mind being added to the hppa list
aswell. I can always answer hppa-linux related questions and help port
this and that.

Cheers,
Carlos.


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> Bad Address (null pointer deref?): Code=15 regs=0000000245b4f590 (Addr=00000625733a213a)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001001011110100001111 Not tainted
> r00-03  000000ff0804bd0f 000000004050f8c0 0000000040311010 0000000084f664ff
> r04-07  00000000405038c0 0000000000000002 0000000084f664c1 000000007fe0a000
> r08-11  0000000000000000 000000007fe0a000 00000000000002b1 000000007ea85600
> r12-15  000000004f2241c0 000000007e96c000 000000007fe0a000 0000000000000040
> r16-19  0000000000000000 000000007fe0a494 000000007ad0b012 00000000404ba2d4
> r20-23  3c353e25733a2046 000000004050f8c0 000000007fe0a000 0000000000000000
> r24-27  0000000084f664c1 0000000000013c43 0000000078340400 00000000405038c0
> r28-31  0000000000000003 0000000245b4f560 0000000245b4f590 00000000404ba2c0
> sr00-03  0000000001436800 0000000000000000 0000000000000000 0000000001436800
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004031104c 0000000040311050
>  IIR: 4a9c01e8    ISR: 000000003c353800  IOR: 00000625733a213a
>  CPU:        0   CR30: 0000000241ee0000 CR31: 00000000404c4000
>  ORIG_R28: 00000054000000c8
>  IAOQ[0]: ip_route_input+0xb4/0xca8
>  IAOQ[1]: ip_route_input+0xb8/0xca8
>  RP(r2): ip_route_input+0x78/0xca8
> Kernel panic - not syncing: Bad Address (null pointer deref?)
>  <0>Rebooting in 5 seconds..

The code seems to be:

    40311008:   eb fe ac 25     b,l 4030e620 <rt_hash_code>,rp
    4031100c:   0b 97 02 28     and r23,ret0,r8
    40311010:   08 04 02 5b     copy r4,dp
    40311014:   2b 63 20 00     addil L%7000,dp,r1
    40311018:   50 3f 04 f0     ldd 278(r1),r31
    4031101c:   0f e0 10 d3     ldd 0(r31),r19
    40311020:   0e 7c 20 dc     ldd,s ret0(r19),ret0
    40311024:   9f 80 22 00     cmpb,*= r0,ret0,4031112c <ip_route_input+0x194>
    40311028:   2b 66 00 00     addil L%c000,dp,r1
    4031102c:   08 1c 02 54     copy ret0,r20
    40311030:   50 33 0e a0     ldd 750(r1),r19
    40311034:   e8 00 00 20     b,l 4031104c <ip_route_input+0xb4>,r0
    40311038:   08 01 02 55     copy r1,r21
    4031103c:   37 9c 00 02     ldo 1(ret0),ret0
    40311040:   6a 7c 00 70     stw ret0,38(r19)
    40311044:   0e 80 10 d4     ldd 0(r20),r20
    40311048:   9e 80 21 ba     cmpb,*=,n r0,r20,4031112c <ip_route_input+0x194>
    4031104c:   4a 9c 01 e8     ldw f4(r20),ret0

It seems like there must be some way to get to 4031104c avoiding the
on r20/ret0.  Don't see any branches to the region between 40311024
and 40311044 in the function, or any other direct branches to 4031104c.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Jan 02, 2007 at 07:35:33PM -0500, Carlos O'Donell wrote:
> On 12/25/06, Frans Pop <elendil@planet.nl> wrote:
> >I would suggest at least the following changes:
> >HPPA: add Kyle McMartin
> >Note: you may also wish to review and update the port pages under [2].
> >

I'm not sure where this email came from, as I don't see it in my 
debian-hppa folder.

> Kyle,
> 
> Would you like my help? I wouldn't mind being added to the hppa list
> aswell. I can always answer hppa-linux related questions and help port
> this and that.
> 

Please, be my guest, I think you are our de facto toolchain ring leader. :)

Cheers,
	Kyle M.


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On Tue, 2 Jan 2007, Helge Deller wrote:

> As far as I could see, this patch does not change anything for the 
> existing architectures which use this framework (IA64 and SPARC64), 
> since "cycles_t" is defined there as unsigned 64bit-integer anyway 
> (which then makes this patch a no-change for them).

The 64bit nature of some entities was so far necessary to get the 
proper accuracy of interpolation. Maybe it can be made to work with 32 bit 
entities. The macro GET_TI_SECS must work correctly and the less bits are 
specified in shift the less self-tuning accuracy you will get.



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On Wed Jan 3 2007, Christoph Lameter wrote:
> On Tue, 2 Jan 2007, Helge Deller wrote:
> 
> > As far as I could see, this patch does not change anything for the 
> > existing architectures which use this framework (IA64 and SPARC64), 
> > since "cycles_t" is defined there as unsigned 64bit-integer anyway 
> > (which then makes this patch a no-change for them).
> 
> The 64bit nature of some entities was so far necessary to get the 
> proper accuracy of interpolation. Maybe it can be made to work with 32 bit 
> entities. The macro GET_TI_SECS must work correctly and the less bits are 
> specified in shift the less self-tuning accuracy you will get.

Yes, it was easily possible to make it 32bit-ready without loosing the accuracy.

Nevertheless, in the meantime John Stultz pointed me to the CONFIG_GENERIC_TIME framework,  and I implemented it that way:
http://git.parisc-linux.org/?p=linux-2.6.git;a=commit;h=b6de83b58b8b07f057deacdef8a95b6c32d1c4e6
http://git.parisc-linux.org/?p=linux-2.6.git;a=commit;h=f70a979c843e4610edfb2a316648fe8ae8718f69

Thus please ignore my original patch proposal. It's not needed any more...

Thanks,
Helge

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> Right now, I don't trust the backtrace. *sigh*

I've commented it out for the moment.  Since I rebuilt 2.6.20-rc2
last night with Helge's timer change, the machine has rebuilt GCC
and got through the gcc (C) testsuite.  However, expect hung at the
end.  I've reported this before.

So far, I've just tried UP kernels.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: john stultz <johnstul@us.ibm.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [RFC][PATCH] use cycle_t instead of u64 in struct
	time_interpolator
Date: Wed, 03 Jan 2007 11:17:59 -0800
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Cc: Christoph Lameter <clameter@sgi.com>,
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To: Helge Deller <deller@gmx.de>
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On Wed, 2007-01-03 at 19:36 +0100, Helge Deller wrote:
> On Wed Jan 3 2007, Christoph Lameter wrote:
> > On Tue, 2 Jan 2007, Helge Deller wrote:
> >
> > > As far as I could see, this patch does not change anything for the
> > > existing architectures which use this framework (IA64 and SPARC64),
> > > since "cycles_t" is defined there as unsigned 64bit-integer anyway
> > > (which then makes this patch a no-change for them).
> >
> > The 64bit nature of some entities was so far necessary to get the
> > proper accuracy of interpolation. Maybe it can be made to work with 32 bit
> > entities. The macro GET_TI_SECS must work correctly and the less bits are
> > specified in shift the less self-tuning accuracy you will get.
> 
> Yes, it was easily possible to make it 32bit-ready without loosing the accuracy.
> 
> Nevertheless, in the meantime John Stultz pointed me to the CONFIG_GENERIC_TIME framework,  and I implemented it that way:
> http://git.parisc-linux.org/?p=linux-2.6.git;a=commit;h=b6de83b58b8b07f057deacdef8a95b6c32d1c4e6

This looks pretty good, although setting the rating to 200 for a
clocksource you don't want to use seems a bit high (there's a rough
rating scale in clocksource.h). Zero is probably what you want to use
there.

> http://git.parisc-linux.org/?p=linux-2.6.git;a=commit;h=f70a979c843e4610edfb2a316648fe8ae8718f69

This looks to be correct, although as the clocksource infrastructure
evolves it looks like we'll be removing the update_callback code in the
future. So this is fine for now, but will probably need a reevaluation
at some point.

Also to avoid jumping between clocksources, I'd keep the initial
disqualification that occurs before you register the clocksource
(otherwise it will be used for one tick, then be disqualified and you're
back to jiffies).

thanks
-john



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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] Re: [RFC][PATCH] use cycle_t instead of u64 in
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Cc: linux-kernel@vger.kernel.org,
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To: john stultz <johnstul@us.ibm.com>
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On Wed Jan 3 2007, john stultz wrote:
> On Wed, 2007-01-03 at 19:36 +0100, Helge Deller wrote:
> > On Wed Jan 3 2007, Christoph Lameter wrote:
> > > On Tue, 2 Jan 2007, Helge Deller wrote:
> > >
> > > > As far as I could see, this patch does not change anything for the
> > > > existing architectures which use this framework (IA64 and SPARC64),
> > > > since "cycles_t" is defined there as unsigned 64bit-integer anyway
> > > > (which then makes this patch a no-change for them).
> > >
> > > The 64bit nature of some entities was so far necessary to get the
> > > proper accuracy of interpolation. Maybe it can be made to work with 32 bit
> > > entities. The macro GET_TI_SECS must work correctly and the less bits are
> > > specified in shift the less self-tuning accuracy you will get.
> > 
> > Yes, it was easily possible to make it 32bit-ready without loosing the accuracy.
> > 
> > Nevertheless, in the meantime John Stultz pointed me to the CONFIG_GENERIC_TIME framework,  and I implemented it that way:
> > http://git.parisc-linux.org/?p=linux-2.6.git;a=commit;h=b6de83b58b8b07f057deacdef8a95b6c32d1c4e6
> 
> This looks pretty good, although setting the rating to 200 for a
> clocksource you don't want to use seems a bit high (there's a rough
> rating scale in clocksource.h). Zero is probably what you want to use
> there.
> 
> > http://git.parisc-linux.org/?p=linux-2.6.git;a=commit;h=f70a979c843e4610edfb2a316648fe8ae8718f69
> 
> This looks to be correct, although as the clocksource infrastructure
> evolves it looks like we'll be removing the update_callback code in the
> future. So this is fine for now, but will probably need a reevaluation
> at some point.
> 
> Also to avoid jumping between clocksources, I'd keep the initial
> disqualification that occurs before you register the clocksource
> (otherwise it will be used for one tick, then be disqualified and you're
> back to jiffies).

That's true, but James Bottomley noticed, that time_init() is called before 
we've done system inventory (which detects if we have a SMP box with multiple CPUs),
so num_online_cpus() would always be one. The update_callback function enables
us to switch back to jiffies if we actually run on a SMP box.

That said, it would be nice to keep the update_callback() functionality or provide another
nice solution around that problem...

Helge
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From: john stultz <johnstul@us.ibm.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [RFC][PATCH] use cycle_t instead of u64 in struct
	time_interpolator
Date: Wed, 03 Jan 2007 12:42:35 -0800
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On Wed, 2007-01-03 at 21:23 +0100, Helge Deller wrote:
> On Wed Jan 3 2007, john stultz wrote:
> > On Wed, 2007-01-03 at 19:36 +0100, Helge Deller wrote:
> > > On Wed Jan 3 2007, Christoph Lameter wrote:
> > > > On Tue, 2 Jan 2007, Helge Deller wrote:
> > > >
> > > > > As far as I could see, this patch does not change anything for the
> > > > > existing architectures which use this framework (IA64 and SPARC64),
> > > > > since "cycles_t" is defined there as unsigned 64bit-integer anyway
> > > > > (which then makes this patch a no-change for them).
> > > >
> > > > The 64bit nature of some entities was so far necessary to get the
> > > > proper accuracy of interpolation. Maybe it can be made to work with 32 bit
> > > > entities. The macro GET_TI_SECS must work correctly and the less bits are
> > > > specified in shift the less self-tuning accuracy you will get.
> > >
> > > Yes, it was easily possible to make it 32bit-ready without loosing the accuracy.
> > >
> > > Nevertheless, in the meantime John Stultz pointed me to the CONFIG_GENERIC_TIME framework,  and I implemented it that way:
> > > http://git.parisc-linux.org/?p=linux-2.6.git;a=commit;h=b6de83b58b8b07f057deacdef8a95b6c32d1c4e6
> >
> > This looks pretty good, although setting the rating to 200 for a
> > clocksource you don't want to use seems a bit high (there's a rough
> > rating scale in clocksource.h). Zero is probably what you want to use
> > there.
> >
> > > http://git.parisc-linux.org/?p=linux-2.6.git;a=commit;h=f70a979c843e4610edfb2a316648fe8ae8718f69
> >
> > This looks to be correct, although as the clocksource infrastructure
> > evolves it looks like we'll be removing the update_callback code in the
> > future. So this is fine for now, but will probably need a reevaluation
> > at some point.
> >
> > Also to avoid jumping between clocksources, I'd keep the initial
> > disqualification that occurs before you register the clocksource
> > (otherwise it will be used for one tick, then be disqualified and you're
> > back to jiffies).
> 
> That's true, but James Bottomley noticed, that time_init() is called before
> we've done system inventory (which detects if we have a SMP box with multiple CPUs),
> so num_online_cpus() would always be one. The update_callback function enables
> us to switch back to jiffies if we actually run on a SMP box.

Ah, yes, right now most clocksources currently register themselves at
module_init time to avoid this sort of thing. Although we might move
that to be a bit earlier, since there is some need for high precision
timeofday earlier at bootup.

> That said, it would be nice to keep the update_callback() functionality or provide another
> nice solution around that problem...

Yea. There will be an alternate solution, hopefully something more
direct that just removes the clocksource and moves on, rather then
polling each tick for change.

thanks
-john



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pa-ckers,

I booted git head on my A500. After a couple hours I tried login via
ssh. The client process got stuck after 3 unsuccessful attempts, so I
decided to take a look at the serial console.

sshd triggered a "code 27" (dump pointer follows).

After another attempt I could eventually log in again and thought this
"wasn't much" (so to speak). Then after a few more hours I realized
the loadavg on the machine was abnormally high. A sshd process was
taking 100% of CPU time. I tried to kill it (with SIGTERM first,
twice), and as it wouldn't terminate I issued a SIGKILL, which had the
very nice effect of taking down the whole machine, spitting endless
regdumps on the console (see the last dump of the following log).

The console log / short story is here:
http://www.pateam.org/archive/dumps/sshd-code27

As a side note, I just killed again that very same box trying to build
a kernel: disk was put offline after scsi reset or something (couldn't
gather more data at this point, will do that tomorrow. IIRC kyle is
experiencing that same bug though).

The last console output was a series of:
EXT3-fs error (device sdb6): ext3_find_entry: reading directory #98113 offset 0
sd 3:0:15:0: rejecting I/O to offline device

and then:
printk: 18 messages suppressed.
Buffer I/O error on device sdb5, logical block 821136
EXT3-fs error (device sdb5): ext3_readdir: directory #401876 contains
a hole at offset 0

For the records, this happened as I used (for the first time) ccache
on this particular build. My home folder lives on /dev/sdb6 which is
ext3. Previous kernel build worked fine (not using ccache), kernel
tree being on /dev/sda1 which is pure ext2. Have to wonder whether
SCSI or fs (or something else) is at fault here...

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On 05/01/07, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> As a side note, I just killed again that very same box trying to build
> a kernel: disk was put offline after scsi reset or something (couldn't
> gather more data at this point, will do that tomorrow. IIRC kyle is
> experiencing that same bug though).

The SCSI problems you're having went away for me when I put it on a UP kernel.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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On 1/6/07, Jeff Bailey <jbailey@raspberryginger.com> wrote:
> On 05/01/07, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> > As a side note, I just killed again that very same box trying to build
> > a kernel: disk was put offline after scsi reset or something (couldn't
> > gather more data at this point, will do that tomorrow. IIRC kyle is
> > experiencing that same bug though).
>
> The SCSI problems you're having went away for me when I put it on a UP kernel.

OK, that means that's a SMP issue then. I'm sure you don't mean the
fix is to use a UP kernel? 8^)

Will dig that more today.

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: [parisc-linux] SCSI (?) bug
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pa-ckers

So the scsi bug that struck Jeff, Kyle and myself on A500 eventually
killed my rp3440. Here's the console dump:

http://www.pateam.org/archive/dumps/scsibug.txt

It basically renders SMP boxes useless. The last unaffected kernel was
2.6.18-rc1-pa3.

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On 1/6/07, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> pa-ckers
>
> So the scsi bug that struck Jeff, Kyle and myself on A500 eventually
> killed my rp3440. Here's the console dump:
>
> http://www.pateam.org/archive/dumps/scsibug.txt
>
> It basically renders SMP boxes useless. The last unaffected kernel was
> 2.6.18-rc1-pa3.

A500 .config here: http://www.pateam.org/archive/dumps/configa500

T-Bone

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Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On 06/01/07, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> On 1/6/07, Jeff Bailey <jbailey@raspberryginger.com> wrote:
> > On 05/01/07, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> > > As a side note, I just killed again that very same box trying to build
> > > a kernel: disk was put offline after scsi reset or something (couldn't
> > > gather more data at this point, will do that tomorrow. IIRC kyle is
> > > experiencing that same bug though).
> >
> > The SCSI problems you're having went away for me when I put it on a UP kernel.
>
> OK, that means that's a SMP issue then. I'm sure you don't mean the
> fix is to use a UP kernel? 8^)
>
> Will dig that more today.

Dude, I work in support.  My first solution is always a workaround. ;)

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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On Sat, 2007-01-06 at 14:22 +0100, Thibaut VARENE wrote:
> So the scsi bug that struck Jeff, Kyle and myself on A500 eventually
> killed my rp3440. Here's the console dump:

> http://www.pateam.org/archive/dumps/scsibug.txt

The log isn't really helpful ... what ever caused this occurred just
prior to the first line (if it's captured in the log at all).

> It basically renders SMP boxes useless. The last unaffected kernel was
> 2.6.18-rc1-pa3.

The symptoms make it appear like a lost interrupt but there are many
other possibilities.

James


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On 1/6/07, James Bottomley <James.Bottomley@steeleye.com> wrote:
> On Sat, 2007-01-06 at 14:22 +0100, Thibaut VARENE wrote:
> > So the scsi bug that struck Jeff, Kyle and myself on A500 eventually
> > killed my rp3440. Here's the console dump:
>
> > http://www.pateam.org/archive/dumps/scsibug.txt
>
> The log isn't really helpful ... what ever caused this occurred just
> prior to the first line (if it's captured in the log at all).

There was nothing prior to the first line (except the last normal
dmesg output from boot time)

> > It basically renders SMP boxes useless. The last unaffected kernel was
> > 2.6.18-rc1-pa3.
>
> The symptoms make it appear like a lost interrupt but there are many
> other possibilities.

OK, thanks for the hint. It doesn't happen at all on UP machines, afaict.

T-Bone

-- 
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http://www.parisc-linux.org/~varenet/
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Duno if it could help but latest git src (dated this 2007-01-03) boot fine on my d380 32bit smp system (only internal disk, 
i.e. ncr53c8xx driver only).

Otoh I was unable to boot smp 64bit (same src) on N4k: it hang after
NET: Registered protocol family 2

nosmp boot option solve the pb.

That said I also encountered the same symptome while trying to install opensuse 10.2 on an old smp i386 boxe, though.

Sorry but I couldn't help more for the moment.

Joel

Thibaut VARENE wrote:
> On 1/6/07, James Bottomley <James.Bottomley@steeleye.com> wrote:
>> On Sat, 2007-01-06 at 14:22 +0100, Thibaut VARENE wrote:
>> > So the scsi bug that struck Jeff, Kyle and myself on A500 eventually
>> > killed my rp3440. Here's the console dump:
>>
>> > http://www.pateam.org/archive/dumps/scsibug.txt
>>
>> The log isn't really helpful ... what ever caused this occurred just
>> prior to the first line (if it's captured in the log at all).
> 
> There was nothing prior to the first line (except the last normal
> dmesg output from boot time)
> 
>> > It basically renders SMP boxes useless. The last unaffected kernel was
>> > 2.6.18-rc1-pa3.
>>
>> The symptoms make it appear like a lost interrupt but there are many
>> other possibilities.
> 
> OK, thanks for the hint. It doesn't happen at all on UP machines, afaict.
> 
> T-Bone
> 
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> After another attempt I could eventually log in again and thought this
> "wasn't much" (so to speak). Then after a few more hours I realized
> the loadavg on the machine was abnormally high. A sshd process was
> taking 100% of CPU time. I tried to kill it (with SIGTERM first,
> twice), and as it wouldn't terminate I issued a SIGKILL, which had the
> very nice effect of taking down the whole machine, spitting endless
> regdumps on the console (see the last dump of the following log).
> 
> The console log / short story is here:
> http://www.pateam.org/archive/dumps/sshd-code27

This appears to be the same problem as I'm having killing hung
java processes.  When I went in this morning to reboot the machine,
it was looping endlessly at the same spot.  It had some hung java
processes and I had tried to do a "shutdown -r +0".  I'm seeing
this with 32bit UP kernel, so I don't think using a UP kernel is
a workaround.

I'd look at the dumps for the protection id traps.  Possibly,
there might be a clue there as to what went wrong.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: [parisc-linux] [PATCH] Common compat_sys_sysinfo
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Xref: news.gmane.org gmane.linux.ports.parisc:24219

While tracking a bug for Thibaut Varene, I noticed that almost all
architectures implemented exactly the same sys32_sysinfo... except
parisc, where a bug was to be found in handling of the uptime. So
let's remove a whole whack of code for fun and profit. Cribbed
compat_sys_sysinfo from x86_64's implementation, since I figured
it would be the best tested.

This patch incorporates Arnd's suggestion of not using set_fs/get_fs,
but instead extracting out the common code from sys_sysinfo.

Tested on a handful of architectures (ia64, parisc, x86_64.)

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

I'd appreciate if a few arch maintainers could make sure that I haven't
screwed anything up for them. It seems all relevant architectures set
CONFIG_COMPAT so that they'll pick up the new implementation, but you
guys know better than I.

 arch/ia64/ia32/ia32_entry.S        |    2 -
 arch/ia64/ia32/sys_ia32.c          |   68 -------------------------------------
 arch/mips/kernel/linux32.c         |   44 -----------------------
 arch/mips/kernel/scall64-n32.S     |    2 -
 arch/mips/kernel/scall64-o32.S     |    2 -
 arch/parisc/kernel/sys_parisc32.c  |   64 ----------------------------------
 arch/parisc/kernel/syscall_table.S |    2 -
 arch/powerpc/kernel/sys_ppc32.c    |   67 ------------------------------------
 arch/s390/kernel/compat_linux.c    |   45 ------------------------
 arch/s390/kernel/compat_wrapper.S  |    6 +--
 arch/s390/kernel/syscalls.S        |    2 -
 arch/sparc64/kernel/sys_sparc32.c  |   64 ----------------------------------
 arch/sparc64/kernel/systbls.S      |    2 -
 arch/x86_64/ia32/ia32entry.S       |    2 -
 arch/x86_64/ia32/sys_ia32.c        |   66 -----------------------------------
 kernel/compat.c                    |   67 ++++++++++++++++++++++++++++++++++++
 kernel/timer.c                     |   58 +++++++++++++++++--------------
 17 files changed, 110 insertions(+), 453 deletions(-)

diff --git a/arch/ia64/ia32/ia32_entry.S b/arch/ia64/ia32/ia32_entry.S
index a32cd59..0a76de0 100644
--- a/arch/ia64/ia32/ia32_entry.S
+++ b/arch/ia64/ia32/ia32_entry.S
@@ -326,7 +326,7 @@ ia32_syscall_table:
 	data8 sys_ni_syscall
 	data8 compat_sys_wait4
 	data8 sys_swapoff	  /* 115 */
-	data8 sys32_sysinfo
+	data8 compat_sys_sysinfo 
 	data8 sys32_ipc
 	data8 sys_fsync
 	data8 sys32_sigreturn
diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c
index 957681c..d430d36 100644
--- a/arch/ia64/ia32/sys_ia32.c
+++ b/arch/ia64/ia32/sys_ia32.c
@@ -2209,74 +2209,6 @@ sys32_fstat64 (unsigned int fd, struct stat64 __user *statbuf)
 	return ret;
 }
 
-struct sysinfo32 {
-	s32 uptime;
-	u32 loads[3];
-	u32 totalram;
-	u32 freeram;
-	u32 sharedram;
-	u32 bufferram;
-	u32 totalswap;
-	u32 freeswap;
-	u16 procs;
-	u16 pad;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[8];
-};
-
-asmlinkage long
-sys32_sysinfo (struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	long ret, err;
-	int bitcount = 0;
-	mm_segment_t old_fs = get_fs();
-
-	set_fs(KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *) &s);
-	set_fs(old_fs);
-	/* Check to see if any memory value is too large for 32-bit and
-	 * scale down if needed.
-	 */
-	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-		while (s.mem_unit < PAGE_SIZE) {
-			s.mem_unit <<= 1;
-			bitcount++;
-		}
-		s.totalram >>= bitcount;
-		s.freeram >>= bitcount;
-		s.sharedram >>= bitcount;
-		s.bufferram >>= bitcount;
-		s.totalswap >>= bitcount;
-		s.freeswap >>= bitcount;
-		s.totalhigh >>= bitcount;
-		s.freehigh >>= bitcount;
-	}
-
-	if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
-		return -EFAULT;
-
-	err  = __put_user(s.uptime, &info->uptime);
-	err |= __put_user(s.loads[0], &info->loads[0]);
-	err |= __put_user(s.loads[1], &info->loads[1]);
-	err |= __put_user(s.loads[2], &info->loads[2]);
-	err |= __put_user(s.totalram, &info->totalram);
-	err |= __put_user(s.freeram, &info->freeram);
-	err |= __put_user(s.sharedram, &info->sharedram);
-	err |= __put_user(s.bufferram, &info->bufferram);
-	err |= __put_user(s.totalswap, &info->totalswap);
-	err |= __put_user(s.freeswap, &info->freeswap);
-	err |= __put_user(s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	return ret;
-}
-
 asmlinkage long
 sys32_sched_rr_get_interval (pid_t pid, struct compat_timespec __user *interval)
 {
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index b061c9a..c4a9cb7 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -193,50 +193,6 @@ sysn32_waitid(int which, compat_pid_t pid,
 	return ret;
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        u16 procs;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[8];
-};
-
-asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret, err;
-	mm_segment_t old_fs = get_fs ();
-
-	set_fs (KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *)&s);
-	set_fs (old_fs);
-	err = put_user (s.uptime, &info->uptime);
-	err |= __put_user (s.loads[0], &info->loads[0]);
-	err |= __put_user (s.loads[1], &info->loads[1]);
-	err |= __put_user (s.loads[2], &info->loads[2]);
-	err |= __put_user (s.totalram, &info->totalram);
-	err |= __put_user (s.freeram, &info->freeram);
-	err |= __put_user (s.sharedram, &info->sharedram);
-	err |= __put_user (s.bufferram, &info->bufferram);
-	err |= __put_user (s.totalswap, &info->totalswap);
-	err |= __put_user (s.freeswap, &info->freeswap);
-	err |= __put_user (s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	return ret;
-}
-
 #define RLIM_INFINITY32	0x7fffffff
 #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
 
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 34567d8..d2ce8f6 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -217,7 +217,7 @@ EXPORT(sysn32_call_table)
 	PTR	sys32_gettimeofday
 	PTR	compat_sys_getrlimit		/* 6095 */
 	PTR	compat_sys_getrusage
-	PTR	sys32_sysinfo
+	PTR	compat_sys_sysinfo
 	PTR	compat_sys_times
 	PTR	sys32_ptrace
 	PTR	sys_getuid			/* 6100 */
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index e91379c..4b5c513 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -321,7 +321,7 @@ sys_call_table:
 	PTR	sys_ni_syscall			/* sys_vm86 */
 	PTR	compat_sys_wait4
 	PTR	sys_swapoff			/* 4115 */
-	PTR	sys32_sysinfo
+	PTR	compat_sys_sysinfo
 	PTR	sys32_ipc
 	PTR	sys_fsync
 	PTR	sys32_sigreturn
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 29be437..ce3245f 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -579,70 +579,6 @@ asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *off
 }
 
 
-struct sysinfo32 {
-	s32 uptime;
-	u32 loads[3];
-	u32 totalram;
-	u32 freeram;
-	u32 sharedram;
-	u32 bufferram;
-	u32 totalswap;
-	u32 freeswap;
-	unsigned short procs;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[12];
-};
-
-/* We used to call sys_sysinfo and translate the result.  But sys_sysinfo
- * undoes the good work done elsewhere, and rather than undoing the
- * damage, I decided to just duplicate the code from sys_sysinfo here.
- */
-
-asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo val;
-	int err;
-	unsigned long seq;
-
-	/* We don't need a memset here because we copy the
-	 * struct to userspace once element at a time.
-	 */
-
-	do {
-		seq = read_seqbegin(&xtime_lock);
-		val.uptime = jiffies / HZ;
-
-		val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
-		val.loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
-		val.loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT);
-
-		val.procs = nr_threads;
-	} while (read_seqretry(&xtime_lock, seq));
-
-
-	si_meminfo(&val);
-	si_swapinfo(&val);
-	
-	err = put_user (val.uptime, &info->uptime);
-	err |= __put_user (val.loads[0], &info->loads[0]);
-	err |= __put_user (val.loads[1], &info->loads[1]);
-	err |= __put_user (val.loads[2], &info->loads[2]);
-	err |= __put_user (val.totalram, &info->totalram);
-	err |= __put_user (val.freeram, &info->freeram);
-	err |= __put_user (val.sharedram, &info->sharedram);
-	err |= __put_user (val.bufferram, &info->bufferram);
-	err |= __put_user (val.totalswap, &info->totalswap);
-	err |= __put_user (val.freeswap, &info->freeswap);
-	err |= __put_user (val.procs, &info->procs);
-	err |= __put_user (val.totalhigh, &info->totalhigh);
-	err |= __put_user (val.freehigh, &info->freehigh);
-	err |= __put_user (val.mem_unit, &info->mem_unit);
-	return err ? -EFAULT : 0;
-}
-
-
 /* lseek() needs a wrapper because 'offset' can be negative, but the top
  * half of the argument has been zeroed by syscall.S.
  */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 701d66a..be8eb9a 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -197,7 +197,7 @@
 	/* struct rusage contains longs... */
 	ENTRY_COMP(wait4)
 	ENTRY_SAME(swapoff)		/* 115 */
-	ENTRY_DIFF(sysinfo)
+	ENTRY_COMP(sysinfo)
 	ENTRY_SAME(shutdown)
 	ENTRY_SAME(fsync)
 	ENTRY_SAME(madvise)
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index 03a2a2f..673e8d9 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -198,73 +198,6 @@ static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
 		 __put_user(i->tv_usec, &o->tv_usec)));
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-	unsigned short pad;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[20-2*sizeof(int)-sizeof(int)];
-};
-
-asmlinkage long compat_sys_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret, err;
-	int bitcount=0;
-	mm_segment_t old_fs = get_fs ();
-	
-	/* The __user cast is valid due to set_fs() */
-	set_fs (KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *)&s);
-	set_fs (old_fs);
-
-	/* Check to see if any memory value is too large for 32-bit and
-         * scale down if needed.
-         */
-	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-	    while (s.mem_unit < PAGE_SIZE) {
-		s.mem_unit <<= 1;
-		bitcount++;
-	    }
-	    s.totalram >>=bitcount;
-	    s.freeram >>= bitcount;
-	    s.sharedram >>= bitcount;
-	    s.bufferram >>= bitcount;
-	    s.totalswap >>= bitcount;
-	    s.freeswap >>= bitcount;
-	    s.totalhigh >>= bitcount;
-	    s.freehigh >>= bitcount;
-	}
-
-	err = put_user (s.uptime, &info->uptime);
-	err |= __put_user (s.loads[0], &info->loads[0]);
-	err |= __put_user (s.loads[1], &info->loads[1]);
-	err |= __put_user (s.loads[2], &info->loads[2]);
-	err |= __put_user (s.totalram, &info->totalram);
-	err |= __put_user (s.freeram, &info->freeram);
-	err |= __put_user (s.sharedram, &info->sharedram);
-	err |= __put_user (s.bufferram, &info->bufferram);
-	err |= __put_user (s.totalswap, &info->totalswap);
-	err |= __put_user (s.freeswap, &info->freeswap);
-	err |= __put_user (s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	
-	return ret;
-}
-
 
 
 
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 5b33f82..88b5858 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -392,51 +392,6 @@ int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
 	return err;
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-	unsigned short pads;
-	u32 totalhigh;
-	u32 freehigh;
-	unsigned int mem_unit;
-        char _f[8];
-};
-
-asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret, err;
-	mm_segment_t old_fs = get_fs ();
-	
-	set_fs (KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *) &s);
-	set_fs (old_fs);
-	err = put_user (s.uptime, &info->uptime);
-	err |= __put_user (s.loads[0], &info->loads[0]);
-	err |= __put_user (s.loads[1], &info->loads[1]);
-	err |= __put_user (s.loads[2], &info->loads[2]);
-	err |= __put_user (s.totalram, &info->totalram);
-	err |= __put_user (s.freeram, &info->freeram);
-	err |= __put_user (s.sharedram, &info->sharedram);
-	err |= __put_user (s.bufferram, &info->bufferram);
-	err |= __put_user (s.totalswap, &info->totalswap);
-	err |= __put_user (s.freeswap, &info->freeswap);
-	err |= __put_user (s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	return ret;
-}
-
 asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
 				struct compat_timespec __user *interval)
 {
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 71e54ef..9790129 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -517,10 +517,10 @@ sys32_swapoff_wrapper:
 	llgtr	%r2,%r2			# const char *
 	jg	sys_swapoff		# branch to system call
 
-	.globl	sys32_sysinfo_wrapper
-sys32_sysinfo_wrapper:
+	.globl	compat_sys_sysinfo_wrapper
+compat_sys_sysinfo_wrapper:
 	llgtr	%r2,%r2			# struct sysinfo_emu31 *
-	jg	sys32_sysinfo		# branch to system call
+	jg	compat_sys_sysinfo	# branch to system call
 
 	.globl	sys32_ipc_wrapper
 sys32_ipc_wrapper:
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index a4ceae3..a52c444 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -124,7 +124,7 @@ NI_SYSCALL							/* old "idle" system call */
 NI_SYSCALL							/* vm86old for i386 */
 SYSCALL(sys_wait4,sys_wait4,compat_sys_wait4_wrapper)
 SYSCALL(sys_swapoff,sys_swapoff,sys32_swapoff_wrapper)		/* 115 */
-SYSCALL(sys_sysinfo,sys_sysinfo,sys32_sysinfo_wrapper)
+SYSCALL(sys_sysinfo,sys_sysinfo,compat_sys_sysinfo_wrapper)
 SYSCALL(sys_ipc,sys_ipc,sys32_ipc_wrapper)
 SYSCALL(sys_fsync,sys_fsync,sys32_fsync_wrapper)
 SYSCALL(sys_sigreturn_glue,sys_sigreturn_glue,sys32_sigreturn_glue)
diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c
index e27cb71..7876a02 100644
--- a/arch/sparc64/kernel/sys_sparc32.c
+++ b/arch/sparc64/kernel/sys_sparc32.c
@@ -459,70 +459,6 @@ asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
 	return sys_sysfs(option, arg1, arg2);
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-	unsigned short pad;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[20-2*sizeof(int)-sizeof(int)];
-};
-
-asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret, err;
-	int bitcount = 0;
-	mm_segment_t old_fs = get_fs ();
-	
-	set_fs(KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *) &s);
-	set_fs(old_fs);
-	/* Check to see if any memory value is too large for 32-bit and
-         * scale down if needed.
-         */
-	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-		while (s.mem_unit < PAGE_SIZE) {
-			s.mem_unit <<= 1;
-			bitcount++;
-		}
-		s.totalram >>= bitcount;
-		s.freeram >>= bitcount;
-		s.sharedram >>= bitcount;
-		s.bufferram >>= bitcount;
-		s.totalswap >>= bitcount;
-		s.freeswap >>= bitcount;
-		s.totalhigh >>= bitcount;
-		s.freehigh >>= bitcount;
-	}
-
-	err = put_user (s.uptime, &info->uptime);
-	err |= __put_user (s.loads[0], &info->loads[0]);
-	err |= __put_user (s.loads[1], &info->loads[1]);
-	err |= __put_user (s.loads[2], &info->loads[2]);
-	err |= __put_user (s.totalram, &info->totalram);
-	err |= __put_user (s.freeram, &info->freeram);
-	err |= __put_user (s.sharedram, &info->sharedram);
-	err |= __put_user (s.bufferram, &info->bufferram);
-	err |= __put_user (s.totalswap, &info->totalswap);
-	err |= __put_user (s.freeswap, &info->freeswap);
-	err |= __put_user (s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	return ret;
-}
-
 asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
 {
 	struct timespec t;
diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S
index 9a80267..948b7d2 100644
--- a/arch/sparc64/kernel/systbls.S
+++ b/arch/sparc64/kernel/systbls.S
@@ -61,7 +61,7 @@ sys_call_table32:
 	.word sys32_epoll_wait, sys32_ioprio_set, sys_getppid, sys32_sigaction, sys_sgetmask
 /*200*/	.word sys32_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir
 	.word sys32_readahead, sys32_socketcall, sys32_syslog, sys32_lookup_dcookie, sys32_fadvise64
-/*210*/	.word sys32_fadvise64_64, sys32_tgkill, sys32_waitpid, sys_swapoff, sys32_sysinfo
+/*210*/	.word sys32_fadvise64_64, sys32_tgkill, sys32_waitpid, sys_swapoff, compat_sys_sysinfo
 	.word sys32_ipc, sys32_sigreturn, sys_clone, sys32_ioprio_get, compat_sys_adjtimex
 /*220*/	.word sys32_sigprocmask, sys_ni_syscall, sys32_delete_module, sys_ni_syscall, sys32_getpgid
 	.word sys32_bdflush, sys32_sysfs, sys_nis_syscall, sys32_setfsuid16, sys32_setfsgid16
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index b4aa875..5f32cf4 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -515,7 +515,7 @@ ia32_sys_call_table:
 	.quad sys32_vm86_warning	/* vm86old */ 
 	.quad compat_sys_wait4
 	.quad sys_swapoff		/* 115 */
-	.quad sys32_sysinfo
+	.quad compat_sys_sysinfo
 	.quad sys32_ipc
 	.quad sys_fsync
 	.quad stub32_sigreturn
diff --git a/arch/x86_64/ia32/sys_ia32.c b/arch/x86_64/ia32/sys_ia32.c
index c9bac3a..200fdde 100644
--- a/arch/x86_64/ia32/sys_ia32.c
+++ b/arch/x86_64/ia32/sys_ia32.c
@@ -523,72 +523,6 @@ sys32_sysfs(int option, u32 arg1, u32 arg2)
 	return sys_sysfs(option, arg1, arg2);
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-	unsigned short pad; 
-        u32 totalhigh;
-        u32 freehigh;
-        u32 mem_unit;
-        char _f[20-2*sizeof(u32)-sizeof(int)];
-};
-
-asmlinkage long
-sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret;
-	mm_segment_t old_fs = get_fs ();
-	int bitcount = 0;
-	
-	set_fs (KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *)&s);
-	set_fs (old_fs);
-
-        /* Check to see if any memory value is too large for 32-bit and scale
-	 *  down if needed
-	 */
-	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-		while (s.mem_unit < PAGE_SIZE) {
-			s.mem_unit <<= 1;
-			bitcount++;
-		}
-		s.totalram >>= bitcount;
-		s.freeram >>= bitcount;
-		s.sharedram >>= bitcount;
-		s.bufferram >>= bitcount;
-		s.totalswap >>= bitcount;
-		s.freeswap >>= bitcount;
-		s.totalhigh >>= bitcount;
-		s.freehigh >>= bitcount;
-	}
-
-	if (!access_ok(VERIFY_WRITE, info, sizeof(struct sysinfo32)) ||
-	    __put_user (s.uptime, &info->uptime) ||
-	    __put_user (s.loads[0], &info->loads[0]) ||
-	    __put_user (s.loads[1], &info->loads[1]) ||
-	    __put_user (s.loads[2], &info->loads[2]) ||
-	    __put_user (s.totalram, &info->totalram) ||
-	    __put_user (s.freeram, &info->freeram) ||
-	    __put_user (s.sharedram, &info->sharedram) ||
-	    __put_user (s.bufferram, &info->bufferram) ||
-	    __put_user (s.totalswap, &info->totalswap) ||
-	    __put_user (s.freeswap, &info->freeswap) ||
-	    __put_user (s.procs, &info->procs) ||
-	    __put_user (s.totalhigh, &info->totalhigh) || 
-	    __put_user (s.freehigh, &info->freehigh) ||
-	    __put_user (s.mem_unit, &info->mem_unit))
-		return -EFAULT;
-	return 0;
-}
-                
 asmlinkage long
 sys32_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
 {
diff --git a/kernel/compat.c b/kernel/compat.c
index 6952dd0..c9e3be6 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -1016,3 +1016,70 @@ asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
 	return sys_migrate_pages(pid, nr_bits + 1, old, new);
 }
 #endif
+
+struct compat_sysinfo {
+	s32 uptime;
+	u32 loads[3];
+	u32 totalram;
+	u32 freeram;
+	u32 sharedram;
+	u32 bufferram;
+	u32 totalswap;
+	u32 freeswap;
+	u16 procs;
+	u16 pad;
+	u32 totalhigh;
+	u32 freehigh;
+	u32 mem_unit;
+	char _f[20-2*sizeof(u32)-sizeof(int)];
+};
+
+asmlinkage long
+compat_sys_sysinfo(struct compat_sysinfo __user *info)
+{
+	extern int do_sysinfo(struct sysinfo *info);
+	struct sysinfo s;
+
+	do_sysinfo(&s);
+
+	/* Check to see if any memory value is too large for 32-bit and scale
+	 *  down if needed
+	 */
+	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
+		int bitcount = 0;
+
+		while (s.mem_unit < PAGE_SIZE) {
+			s.mem_unit <<= 1;
+			bitcount++;
+		}
+
+		s.totalram >>= bitcount;
+		s.freeram >>= bitcount;
+		s.sharedram >>= bitcount;
+		s.bufferram >>= bitcount;
+		s.totalswap >>= bitcount;
+		s.freeswap >>= bitcount;
+		s.totalhigh >>= bitcount;
+		s.freehigh >>= bitcount;
+	}
+
+	if (!access_ok(VERIFY_WRITE, info, sizeof(struct compat_sysinfo)) ||
+	    __put_user (s.uptime, &info->uptime) ||
+	    __put_user (s.loads[0], &info->loads[0]) ||
+	    __put_user (s.loads[1], &info->loads[1]) ||
+	    __put_user (s.loads[2], &info->loads[2]) ||
+	    __put_user (s.totalram, &info->totalram) ||
+	    __put_user (s.freeram, &info->freeram) ||
+	    __put_user (s.sharedram, &info->sharedram) ||
+	    __put_user (s.bufferram, &info->bufferram) ||
+	    __put_user (s.totalswap, &info->totalswap) ||
+	    __put_user (s.freeswap, &info->freeswap) ||
+	    __put_user (s.procs, &info->procs) ||
+	    __put_user (s.totalhigh, &info->totalhigh) ||
+	    __put_user (s.freehigh, &info->freehigh) ||
+	    __put_user (s.mem_unit, &info->mem_unit))
+		return -EFAULT;
+
+	return 0;
+}
+
diff --git a/kernel/timer.c b/kernel/timer.c
index c2a8ccf..d35f6d9 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1392,17 +1392,16 @@ asmlinkage long sys_gettid(void)
 }
 
 /**
- * sys_sysinfo - fill in sysinfo struct
+ * do_sysinfo - fill in sysinfo struct
  * @info: pointer to buffer to fill
  */ 
-asmlinkage long sys_sysinfo(struct sysinfo __user *info)
+int do_sysinfo(struct sysinfo *info)
 {
-	struct sysinfo val;
 	unsigned long mem_total, sav_total;
 	unsigned int mem_unit, bitcount;
 	unsigned long seq;
 
-	memset((char *)&val, 0, sizeof(struct sysinfo));
+	memset((char *)info, 0, sizeof(struct sysinfo));
 
 	do {
 		struct timespec tp;
@@ -1422,17 +1421,17 @@ asmlinkage long sys_sysinfo(struct sysinfo __user *info)
 			tp.tv_nsec = tp.tv_nsec - NSEC_PER_SEC;
 			tp.tv_sec++;
 		}
-		val.uptime = tp.tv_sec + (tp.tv_nsec ? 1 : 0);
+		info->uptime = tp.tv_sec + (tp.tv_nsec ? 1 : 0);
 
-		val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
-		val.loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
-		val.loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT);
+		info->loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
+		info->loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
+		info->loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT);
 
-		val.procs = nr_threads;
+		info->procs = nr_threads;
 	} while (read_seqretry(&xtime_lock, seq));
 
-	si_meminfo(&val);
-	si_swapinfo(&val);
+	si_meminfo(info);
+	si_swapinfo(info);
 
 	/*
 	 * If the sum of all the available memory (i.e. ram + swap)
@@ -1443,11 +1442,11 @@ asmlinkage long sys_sysinfo(struct sysinfo __user *info)
 	 *  -Erik Andersen <andersee@debian.org>
 	 */
 
-	mem_total = val.totalram + val.totalswap;
-	if (mem_total < val.totalram || mem_total < val.totalswap)
+	mem_total = info->totalram + info->totalswap;
+	if (mem_total < info->totalram || mem_total < info->totalswap)
 		goto out;
 	bitcount = 0;
-	mem_unit = val.mem_unit;
+	mem_unit = info->mem_unit;
 	while (mem_unit > 1) {
 		bitcount++;
 		mem_unit >>= 1;
@@ -1459,22 +1458,31 @@ asmlinkage long sys_sysinfo(struct sysinfo __user *info)
 
 	/*
 	 * If mem_total did not overflow, multiply all memory values by
-	 * val.mem_unit and set it to 1.  This leaves things compatible
+	 * info->mem_unit and set it to 1.  This leaves things compatible
 	 * with 2.2.x, and also retains compatibility with earlier 2.4.x
 	 * kernels...
 	 */
 
-	val.mem_unit = 1;
-	val.totalram <<= bitcount;
-	val.freeram <<= bitcount;
-	val.sharedram <<= bitcount;
-	val.bufferram <<= bitcount;
-	val.totalswap <<= bitcount;
-	val.freeswap <<= bitcount;
-	val.totalhigh <<= bitcount;
-	val.freehigh <<= bitcount;
+	info->mem_unit = 1;
+	info->totalram <<= bitcount;
+	info->freeram <<= bitcount;
+	info->sharedram <<= bitcount;
+	info->bufferram <<= bitcount;
+	info->totalswap <<= bitcount;
+	info->freeswap <<= bitcount;
+	info->totalhigh <<= bitcount;
+	info->freehigh <<= bitcount;
+
+out:
+	return 0;
+}
+
+asmlinkage long sys_sysinfo(struct sysinfo __user *info)
+{
+	struct sysinfo val;
+
+	do_sysinfo(&val);
 
- out:
 	if (copy_to_user(info, &val, sizeof(struct sysinfo)))
 		return -EFAULT;
 
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To: Christoph Hellwig <hch@infradead.org>,
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Xref: news.gmane.org gmane.linux.ports.parisc:24220

On Sun, Jan 07, 2007 at 03:13:19PM +0000, Christoph Hellwig wrote:
> and last but not least we probably want a unified mechanisms to deal
> with the 64bit arguments that are broken up into two 32bit ones (not just
> for emulation but also for 32it BE architectures)

It's not BE that is the problem -- drepper thought of that.

What he fundamentally missed was the calling convention where 64-bit
arguments have to be 64-bit aligned, even when they're passed through
registers.  So:

int foo(int, long long);

takes its arguments in arg0, arg2 and arg3, but glibc passes the syscall
arguments in arg0, arg1 and arg2.

I think the Right Way to fix this is for some gcc hacker to implement an
__attribute__((packed_args)) that changes the calling convention for
that function, then we can define asmlinkage to use that on mips and
parisc.

Any budding gcc hackers out there?  ;-)
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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: [parisc-linux] Re: [PATCH] Common compat_sys_sysinfo
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On Sun, Jan 07, 2007 at 03:13:19PM +0000, Christoph Hellwig wrote:
> > +compat_sys_sysinfo(struct compat_sysinfo __user *info)
> > +{
> > +	extern int do_sysinfo(struct sysinfo *info);
> 
> Please always put prototypes for functions with external linkage in
> header files.
> 

Ah, crud, I stuck that there to reduce the number of patched files when I let
Thibaut test it, but forgot to remove it from the final patch.

> > +int do_sysinfo(struct sysinfo *info)
> >  {
> > -	struct sysinfo val;
> >  	unsigned long mem_total, sav_total;
> >  	unsigned int mem_unit, bitcount;
> >  	unsigned long seq;
> >  
> > -	memset((char *)&val, 0, sizeof(struct sysinfo));
> > +	memset((char *)info, 0, sizeof(struct sysinfo));
> 
> No need for the cast here.
>

Ok.

> 
> 
> Btw, in case you have some spare time there are some other syscalls
> that want similar treatment.  sendfile(64) come to mind as these
> could use a do_sendfile helper aswell, the various stat and readdir/getdents
> variants could do with some unification, the various timing calls
> like alarm and get/settimeofday are common across architectures,
> sysctl should be the same everywhere, the uid/git related syscalls
> should be consolidated, sched_rr_get_interval looks trivial,
> and last but not least we probably want a unified mechanisms to deal
> with the 64bit arguments that are broken up into two 32bit ones (not just
> for emulation but also for 32it BE architectures)
> 

I can definitely look into this.

> Okay, okay - we should probably put this into a Wiki somewhere :)
> 

Heh. :)

Cheers,
	Kyle
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From: Christoph Hellwig <hch@infradead.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [PATCH] Common compat_sys_sysinfo
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On Sun, Jan 07, 2007 at 09:48:50AM -0500, Kyle McMartin wrote:
> While tracking a bug for Thibaut Varene, I noticed that almost all
> architectures implemented exactly the same sys32_sysinfo... except
> parisc, where a bug was to be found in handling of the uptime. So
> let's remove a whole whack of code for fun and profit. Cribbed
> compat_sys_sysinfo from x86_64's implementation, since I figured
> it would be the best tested.
> 
> This patch incorporates Arnd's suggestion of not using set_fs/get_fs,
> but instead extracting out the common code from sys_sysinfo.
> 
> Tested on a handful of architectures (ia64, parisc, x86_64.)

Looks generally good to me, but..

> +asmlinkage long
> +compat_sys_sysinfo(struct compat_sysinfo __user *info)
> +{
> +	extern int do_sysinfo(struct sysinfo *info);

Please always put prototypes for functions with external linkage in
header files.

> +int do_sysinfo(struct sysinfo *info)
>  {
> -	struct sysinfo val;
>  	unsigned long mem_total, sav_total;
>  	unsigned int mem_unit, bitcount;
>  	unsigned long seq;
>  
> -	memset((char *)&val, 0, sizeof(struct sysinfo));
> +	memset((char *)info, 0, sizeof(struct sysinfo));

No need for the cast here.


Btw, in case you have some spare time there are some other syscalls
that want similar treatment.  sendfile(64) come to mind as these
could use a do_sendfile helper aswell, the various stat and readdir/getdents
variants could do with some unification, the various timing calls
like alarm and get/settimeofday are common across architectures,
sysctl should be the same everywhere, the uid/git related syscalls
should be consolidated, sched_rr_get_interval looks trivial,
and last but not least we probably want a unified mechanisms to deal
with the 64bit arguments that are broken up into two 32bit ones (not just
for emulation but also for 32it BE architectures)

Okay, okay - we should probably put this into a Wiki somewhere :)
_______________________________________________
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http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: [parisc-linux] [PATCH] Common compat_sys_sysinfo (v2)
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Cc: Christoph Hellwig <hch@infradead.org>,
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diff --git a/arch/ia64/ia32/ia32_entry.S b/arch/ia64/ia32/ia32_entry.S
index a32cd59..0a76de0 100644
--- a/arch/ia64/ia32/ia32_entry.S
+++ b/arch/ia64/ia32/ia32_entry.S
@@ -326,7 +326,7 @@ ia32_syscall_table:
 	data8 sys_ni_syscall
 	data8 compat_sys_wait4
 	data8 sys_swapoff	  /* 115 */
-	data8 sys32_sysinfo
+	data8 compat_sys_sysinfo 
 	data8 sys32_ipc
 	data8 sys_fsync
 	data8 sys32_sigreturn
diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c
index 957681c..d430d36 100644
--- a/arch/ia64/ia32/sys_ia32.c
+++ b/arch/ia64/ia32/sys_ia32.c
@@ -2209,74 +2209,6 @@ sys32_fstat64 (unsigned int fd, struct stat64 __user *statbuf)
 	return ret;
 }
 
-struct sysinfo32 {
-	s32 uptime;
-	u32 loads[3];
-	u32 totalram;
-	u32 freeram;
-	u32 sharedram;
-	u32 bufferram;
-	u32 totalswap;
-	u32 freeswap;
-	u16 procs;
-	u16 pad;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[8];
-};
-
-asmlinkage long
-sys32_sysinfo (struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	long ret, err;
-	int bitcount = 0;
-	mm_segment_t old_fs = get_fs();
-
-	set_fs(KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *) &s);
-	set_fs(old_fs);
-	/* Check to see if any memory value is too large for 32-bit and
-	 * scale down if needed.
-	 */
-	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-		while (s.mem_unit < PAGE_SIZE) {
-			s.mem_unit <<= 1;
-			bitcount++;
-		}
-		s.totalram >>= bitcount;
-		s.freeram >>= bitcount;
-		s.sharedram >>= bitcount;
-		s.bufferram >>= bitcount;
-		s.totalswap >>= bitcount;
-		s.freeswap >>= bitcount;
-		s.totalhigh >>= bitcount;
-		s.freehigh >>= bitcount;
-	}
-
-	if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
-		return -EFAULT;
-
-	err  = __put_user(s.uptime, &info->uptime);
-	err |= __put_user(s.loads[0], &info->loads[0]);
-	err |= __put_user(s.loads[1], &info->loads[1]);
-	err |= __put_user(s.loads[2], &info->loads[2]);
-	err |= __put_user(s.totalram, &info->totalram);
-	err |= __put_user(s.freeram, &info->freeram);
-	err |= __put_user(s.sharedram, &info->sharedram);
-	err |= __put_user(s.bufferram, &info->bufferram);
-	err |= __put_user(s.totalswap, &info->totalswap);
-	err |= __put_user(s.freeswap, &info->freeswap);
-	err |= __put_user(s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	return ret;
-}
-
 asmlinkage long
 sys32_sched_rr_get_interval (pid_t pid, struct compat_timespec __user *interval)
 {
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index b061c9a..c4a9cb7 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -193,50 +193,6 @@ sysn32_waitid(int which, compat_pid_t pid,
 	return ret;
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        u16 procs;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[8];
-};
-
-asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret, err;
-	mm_segment_t old_fs = get_fs ();
-
-	set_fs (KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *)&s);
-	set_fs (old_fs);
-	err = put_user (s.uptime, &info->uptime);
-	err |= __put_user (s.loads[0], &info->loads[0]);
-	err |= __put_user (s.loads[1], &info->loads[1]);
-	err |= __put_user (s.loads[2], &info->loads[2]);
-	err |= __put_user (s.totalram, &info->totalram);
-	err |= __put_user (s.freeram, &info->freeram);
-	err |= __put_user (s.sharedram, &info->sharedram);
-	err |= __put_user (s.bufferram, &info->bufferram);
-	err |= __put_user (s.totalswap, &info->totalswap);
-	err |= __put_user (s.freeswap, &info->freeswap);
-	err |= __put_user (s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	return ret;
-}
-
 #define RLIM_INFINITY32	0x7fffffff
 #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
 
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 34567d8..d2ce8f6 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -217,7 +217,7 @@ EXPORT(sysn32_call_table)
 	PTR	sys32_gettimeofday
 	PTR	compat_sys_getrlimit		/* 6095 */
 	PTR	compat_sys_getrusage
-	PTR	sys32_sysinfo
+	PTR	compat_sys_sysinfo
 	PTR	compat_sys_times
 	PTR	sys32_ptrace
 	PTR	sys_getuid			/* 6100 */
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index e91379c..4b5c513 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -321,7 +321,7 @@ sys_call_table:
 	PTR	sys_ni_syscall			/* sys_vm86 */
 	PTR	compat_sys_wait4
 	PTR	sys_swapoff			/* 4115 */
-	PTR	sys32_sysinfo
+	PTR	compat_sys_sysinfo
 	PTR	sys32_ipc
 	PTR	sys_fsync
 	PTR	sys32_sigreturn
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 29be437..ce3245f 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -579,70 +579,6 @@ asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *off
 }
 
 
-struct sysinfo32 {
-	s32 uptime;
-	u32 loads[3];
-	u32 totalram;
-	u32 freeram;
-	u32 sharedram;
-	u32 bufferram;
-	u32 totalswap;
-	u32 freeswap;
-	unsigned short procs;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[12];
-};
-
-/* We used to call sys_sysinfo and translate the result.  But sys_sysinfo
- * undoes the good work done elsewhere, and rather than undoing the
- * damage, I decided to just duplicate the code from sys_sysinfo here.
- */
-
-asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo val;
-	int err;
-	unsigned long seq;
-
-	/* We don't need a memset here because we copy the
-	 * struct to userspace once element at a time.
-	 */
-
-	do {
-		seq = read_seqbegin(&xtime_lock);
-		val.uptime = jiffies / HZ;
-
-		val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
-		val.loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
-		val.loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT);
-
-		val.procs = nr_threads;
-	} while (read_seqretry(&xtime_lock, seq));
-
-
-	si_meminfo(&val);
-	si_swapinfo(&val);
-	
-	err = put_user (val.uptime, &info->uptime);
-	err |= __put_user (val.loads[0], &info->loads[0]);
-	err |= __put_user (val.loads[1], &info->loads[1]);
-	err |= __put_user (val.loads[2], &info->loads[2]);
-	err |= __put_user (val.totalram, &info->totalram);
-	err |= __put_user (val.freeram, &info->freeram);
-	err |= __put_user (val.sharedram, &info->sharedram);
-	err |= __put_user (val.bufferram, &info->bufferram);
-	err |= __put_user (val.totalswap, &info->totalswap);
-	err |= __put_user (val.freeswap, &info->freeswap);
-	err |= __put_user (val.procs, &info->procs);
-	err |= __put_user (val.totalhigh, &info->totalhigh);
-	err |= __put_user (val.freehigh, &info->freehigh);
-	err |= __put_user (val.mem_unit, &info->mem_unit);
-	return err ? -EFAULT : 0;
-}
-
-
 /* lseek() needs a wrapper because 'offset' can be negative, but the top
  * half of the argument has been zeroed by syscall.S.
  */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 701d66a..be8eb9a 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -197,7 +197,7 @@
 	/* struct rusage contains longs... */
 	ENTRY_COMP(wait4)
 	ENTRY_SAME(swapoff)		/* 115 */
-	ENTRY_DIFF(sysinfo)
+	ENTRY_COMP(sysinfo)
 	ENTRY_SAME(shutdown)
 	ENTRY_SAME(fsync)
 	ENTRY_SAME(madvise)
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index 03a2a2f..673e8d9 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -198,73 +198,6 @@ static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
 		 __put_user(i->tv_usec, &o->tv_usec)));
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-	unsigned short pad;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[20-2*sizeof(int)-sizeof(int)];
-};
-
-asmlinkage long compat_sys_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret, err;
-	int bitcount=0;
-	mm_segment_t old_fs = get_fs ();
-	
-	/* The __user cast is valid due to set_fs() */
-	set_fs (KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *)&s);
-	set_fs (old_fs);
-
-	/* Check to see if any memory value is too large for 32-bit and
-         * scale down if needed.
-         */
-	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-	    while (s.mem_unit < PAGE_SIZE) {
-		s.mem_unit <<= 1;
-		bitcount++;
-	    }
-	    s.totalram >>=bitcount;
-	    s.freeram >>= bitcount;
-	    s.sharedram >>= bitcount;
-	    s.bufferram >>= bitcount;
-	    s.totalswap >>= bitcount;
-	    s.freeswap >>= bitcount;
-	    s.totalhigh >>= bitcount;
-	    s.freehigh >>= bitcount;
-	}
-
-	err = put_user (s.uptime, &info->uptime);
-	err |= __put_user (s.loads[0], &info->loads[0]);
-	err |= __put_user (s.loads[1], &info->loads[1]);
-	err |= __put_user (s.loads[2], &info->loads[2]);
-	err |= __put_user (s.totalram, &info->totalram);
-	err |= __put_user (s.freeram, &info->freeram);
-	err |= __put_user (s.sharedram, &info->sharedram);
-	err |= __put_user (s.bufferram, &info->bufferram);
-	err |= __put_user (s.totalswap, &info->totalswap);
-	err |= __put_user (s.freeswap, &info->freeswap);
-	err |= __put_user (s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	
-	return ret;
-}
-
 
 
 
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 5b33f82..88b5858 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -392,51 +392,6 @@ int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
 	return err;
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-	unsigned short pads;
-	u32 totalhigh;
-	u32 freehigh;
-	unsigned int mem_unit;
-        char _f[8];
-};
-
-asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret, err;
-	mm_segment_t old_fs = get_fs ();
-	
-	set_fs (KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *) &s);
-	set_fs (old_fs);
-	err = put_user (s.uptime, &info->uptime);
-	err |= __put_user (s.loads[0], &info->loads[0]);
-	err |= __put_user (s.loads[1], &info->loads[1]);
-	err |= __put_user (s.loads[2], &info->loads[2]);
-	err |= __put_user (s.totalram, &info->totalram);
-	err |= __put_user (s.freeram, &info->freeram);
-	err |= __put_user (s.sharedram, &info->sharedram);
-	err |= __put_user (s.bufferram, &info->bufferram);
-	err |= __put_user (s.totalswap, &info->totalswap);
-	err |= __put_user (s.freeswap, &info->freeswap);
-	err |= __put_user (s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	return ret;
-}
-
 asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
 				struct compat_timespec __user *interval)
 {
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 71e54ef..9790129 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -517,10 +517,10 @@ sys32_swapoff_wrapper:
 	llgtr	%r2,%r2			# const char *
 	jg	sys_swapoff		# branch to system call
 
-	.globl	sys32_sysinfo_wrapper
-sys32_sysinfo_wrapper:
+	.globl	compat_sys_sysinfo_wrapper
+compat_sys_sysinfo_wrapper:
 	llgtr	%r2,%r2			# struct sysinfo_emu31 *
-	jg	sys32_sysinfo		# branch to system call
+	jg	compat_sys_sysinfo	# branch to system call
 
 	.globl	sys32_ipc_wrapper
 sys32_ipc_wrapper:
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index a4ceae3..a52c444 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -124,7 +124,7 @@ NI_SYSCALL							/* old "idle" system call */
 NI_SYSCALL							/* vm86old for i386 */
 SYSCALL(sys_wait4,sys_wait4,compat_sys_wait4_wrapper)
 SYSCALL(sys_swapoff,sys_swapoff,sys32_swapoff_wrapper)		/* 115 */
-SYSCALL(sys_sysinfo,sys_sysinfo,sys32_sysinfo_wrapper)
+SYSCALL(sys_sysinfo,sys_sysinfo,compat_sys_sysinfo_wrapper)
 SYSCALL(sys_ipc,sys_ipc,sys32_ipc_wrapper)
 SYSCALL(sys_fsync,sys_fsync,sys32_fsync_wrapper)
 SYSCALL(sys_sigreturn_glue,sys_sigreturn_glue,sys32_sigreturn_glue)
diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c
index e27cb71..7876a02 100644
--- a/arch/sparc64/kernel/sys_sparc32.c
+++ b/arch/sparc64/kernel/sys_sparc32.c
@@ -459,70 +459,6 @@ asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
 	return sys_sysfs(option, arg1, arg2);
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-	unsigned short pad;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[20-2*sizeof(int)-sizeof(int)];
-};
-
-asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret, err;
-	int bitcount = 0;
-	mm_segment_t old_fs = get_fs ();
-	
-	set_fs(KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *) &s);
-	set_fs(old_fs);
-	/* Check to see if any memory value is too large for 32-bit and
-         * scale down if needed.
-         */
-	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-		while (s.mem_unit < PAGE_SIZE) {
-			s.mem_unit <<= 1;
-			bitcount++;
-		}
-		s.totalram >>= bitcount;
-		s.freeram >>= bitcount;
-		s.sharedram >>= bitcount;
-		s.bufferram >>= bitcount;
-		s.totalswap >>= bitcount;
-		s.freeswap >>= bitcount;
-		s.totalhigh >>= bitcount;
-		s.freehigh >>= bitcount;
-	}
-
-	err = put_user (s.uptime, &info->uptime);
-	err |= __put_user (s.loads[0], &info->loads[0]);
-	err |= __put_user (s.loads[1], &info->loads[1]);
-	err |= __put_user (s.loads[2], &info->loads[2]);
-	err |= __put_user (s.totalram, &info->totalram);
-	err |= __put_user (s.freeram, &info->freeram);
-	err |= __put_user (s.sharedram, &info->sharedram);
-	err |= __put_user (s.bufferram, &info->bufferram);
-	err |= __put_user (s.totalswap, &info->totalswap);
-	err |= __put_user (s.freeswap, &info->freeswap);
-	err |= __put_user (s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	return ret;
-}
-
 asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
 {
 	struct timespec t;
diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S
index 9a80267..948b7d2 100644
--- a/arch/sparc64/kernel/systbls.S
+++ b/arch/sparc64/kernel/systbls.S
@@ -61,7 +61,7 @@ sys_call_table32:
 	.word sys32_epoll_wait, sys32_ioprio_set, sys_getppid, sys32_sigaction, sys_sgetmask
 /*200*/	.word sys32_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir
 	.word sys32_readahead, sys32_socketcall, sys32_syslog, sys32_lookup_dcookie, sys32_fadvise64
-/*210*/	.word sys32_fadvise64_64, sys32_tgkill, sys32_waitpid, sys_swapoff, sys32_sysinfo
+/*210*/	.word sys32_fadvise64_64, sys32_tgkill, sys32_waitpid, sys_swapoff, compat_sys_sysinfo
 	.word sys32_ipc, sys32_sigreturn, sys_clone, sys32_ioprio_get, compat_sys_adjtimex
 /*220*/	.word sys32_sigprocmask, sys_ni_syscall, sys32_delete_module, sys_ni_syscall, sys32_getpgid
 	.word sys32_bdflush, sys32_sysfs, sys_nis_syscall, sys32_setfsuid16, sys32_setfsgid16
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index b4aa875..5f32cf4 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -515,7 +515,7 @@ ia32_sys_call_table:
 	.quad sys32_vm86_warning	/* vm86old */ 
 	.quad compat_sys_wait4
 	.quad sys_swapoff		/* 115 */
-	.quad sys32_sysinfo
+	.quad compat_sys_sysinfo
 	.quad sys32_ipc
 	.quad sys_fsync
 	.quad stub32_sigreturn
diff --git a/arch/x86_64/ia32/sys_ia32.c b/arch/x86_64/ia32/sys_ia32.c
index c9bac3a..200fdde 100644
--- a/arch/x86_64/ia32/sys_ia32.c
+++ b/arch/x86_64/ia32/sys_ia32.c
@@ -523,72 +523,6 @@ sys32_sysfs(int option, u32 arg1, u32 arg2)
 	return sys_sysfs(option, arg1, arg2);
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-	unsigned short pad; 
-        u32 totalhigh;
-        u32 freehigh;
-        u32 mem_unit;
-        char _f[20-2*sizeof(u32)-sizeof(int)];
-};
-
-asmlinkage long
-sys32_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret;
-	mm_segment_t old_fs = get_fs ();
-	int bitcount = 0;
-	
-	set_fs (KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *)&s);
-	set_fs (old_fs);
-
-        /* Check to see if any memory value is too large for 32-bit and scale
-	 *  down if needed
-	 */
-	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-		while (s.mem_unit < PAGE_SIZE) {
-			s.mem_unit <<= 1;
-			bitcount++;
-		}
-		s.totalram >>= bitcount;
-		s.freeram >>= bitcount;
-		s.sharedram >>= bitcount;
-		s.bufferram >>= bitcount;
-		s.totalswap >>= bitcount;
-		s.freeswap >>= bitcount;
-		s.totalhigh >>= bitcount;
-		s.freehigh >>= bitcount;
-	}
-
-	if (!access_ok(VERIFY_WRITE, info, sizeof(struct sysinfo32)) ||
-	    __put_user (s.uptime, &info->uptime) ||
-	    __put_user (s.loads[0], &info->loads[0]) ||
-	    __put_user (s.loads[1], &info->loads[1]) ||
-	    __put_user (s.loads[2], &info->loads[2]) ||
-	    __put_user (s.totalram, &info->totalram) ||
-	    __put_user (s.freeram, &info->freeram) ||
-	    __put_user (s.sharedram, &info->sharedram) ||
-	    __put_user (s.bufferram, &info->bufferram) ||
-	    __put_user (s.totalswap, &info->totalswap) ||
-	    __put_user (s.freeswap, &info->freeswap) ||
-	    __put_user (s.procs, &info->procs) ||
-	    __put_user (s.totalhigh, &info->totalhigh) || 
-	    __put_user (s.freehigh, &info->freehigh) ||
-	    __put_user (s.mem_unit, &info->mem_unit))
-		return -EFAULT;
-	return 0;
-}
-                
 asmlinkage long
 sys32_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
 {
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index b0c4a05..8bdc929 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -309,6 +309,9 @@ static inline int __attribute__ ((format (printf, 1, 2))) pr_debug(const char *
 	(void)__tmp; \
 })
 
+struct sysinfo;
+extern int do_sysinfo(struct sysinfo *info);
+
 #endif /* __KERNEL__ */
 
 #define SI_LOAD_SHIFT	16
diff --git a/kernel/compat.c b/kernel/compat.c
index 6952dd0..cebb4c2 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -1016,3 +1016,69 @@ asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
 	return sys_migrate_pages(pid, nr_bits + 1, old, new);
 }
 #endif
+
+struct compat_sysinfo {
+	s32 uptime;
+	u32 loads[3];
+	u32 totalram;
+	u32 freeram;
+	u32 sharedram;
+	u32 bufferram;
+	u32 totalswap;
+	u32 freeswap;
+	u16 procs;
+	u16 pad;
+	u32 totalhigh;
+	u32 freehigh;
+	u32 mem_unit;
+	char _f[20-2*sizeof(u32)-sizeof(int)];
+};
+
+asmlinkage long
+compat_sys_sysinfo(struct compat_sysinfo __user *info)
+{
+	struct sysinfo s;
+
+	do_sysinfo(&s);
+
+	/* Check to see if any memory value is too large for 32-bit and scale
+	 *  down if needed
+	 */
+	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
+		int bitcount = 0;
+
+		while (s.mem_unit < PAGE_SIZE) {
+			s.mem_unit <<= 1;
+			bitcount++;
+		}
+
+		s.totalram >>= bitcount;
+		s.freeram >>= bitcount;
+		s.sharedram >>= bitcount;
+		s.bufferram >>= bitcount;
+		s.totalswap >>= bitcount;
+		s.freeswap >>= bitcount;
+		s.totalhigh >>= bitcount;
+		s.freehigh >>= bitcount;
+	}
+
+	if (!access_ok(VERIFY_WRITE, info, sizeof(struct compat_sysinfo)) ||
+	    __put_user (s.uptime, &info->uptime) ||
+	    __put_user (s.loads[0], &info->loads[0]) ||
+	    __put_user (s.loads[1], &info->loads[1]) ||
+	    __put_user (s.loads[2], &info->loads[2]) ||
+	    __put_user (s.totalram, &info->totalram) ||
+	    __put_user (s.freeram, &info->freeram) ||
+	    __put_user (s.sharedram, &info->sharedram) ||
+	    __put_user (s.bufferram, &info->bufferram) ||
+	    __put_user (s.totalswap, &info->totalswap) ||
+	    __put_user (s.freeswap, &info->freeswap) ||
+	    __put_user (s.procs, &info->procs) ||
+	    __put_user (s.totalhigh, &info->totalhigh) ||
+	    __put_user (s.freehigh, &info->freehigh) ||
+	    __put_user (s.mem_unit, &info->mem_unit))
+		return -EFAULT;
+
+	return 0;
+}
+
diff --git a/kernel/timer.c b/kernel/timer.c
index c2a8ccf..28ca2d4 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1392,17 +1392,16 @@ asmlinkage long sys_gettid(void)
 }
 
 /**
- * sys_sysinfo - fill in sysinfo struct
+ * do_sysinfo - fill in sysinfo struct
  * @info: pointer to buffer to fill
  */ 
-asmlinkage long sys_sysinfo(struct sysinfo __user *info)
+int do_sysinfo(struct sysinfo *info)
 {
-	struct sysinfo val;
 	unsigned long mem_total, sav_total;
 	unsigned int mem_unit, bitcount;
 	unsigned long seq;
 
-	memset((char *)&val, 0, sizeof(struct sysinfo));
+	memset(info, 0, sizeof(struct sysinfo));
 
 	do {
 		struct timespec tp;
@@ -1422,17 +1421,17 @@ asmlinkage long sys_sysinfo(struct sysinfo __user *info)
 			tp.tv_nsec = tp.tv_nsec - NSEC_PER_SEC;
 			tp.tv_sec++;
 		}
-		val.uptime = tp.tv_sec + (tp.tv_nsec ? 1 : 0);
+		info->uptime = tp.tv_sec + (tp.tv_nsec ? 1 : 0);
 
-		val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
-		val.loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
-		val.loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT);
+		info->loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
+		info->loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
+		info->loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT);
 
-		val.procs = nr_threads;
+		info->procs = nr_threads;
 	} while (read_seqretry(&xtime_lock, seq));
 
-	si_meminfo(&val);
-	si_swapinfo(&val);
+	si_meminfo(info);
+	si_swapinfo(info);
 
 	/*
 	 * If the sum of all the available memory (i.e. ram + swap)
@@ -1443,11 +1442,11 @@ asmlinkage long sys_sysinfo(struct sysinfo __user *info)
 	 *  -Erik Andersen <andersee@debian.org>
 	 */
 
-	mem_total = val.totalram + val.totalswap;
-	if (mem_total < val.totalram || mem_total < val.totalswap)
+	mem_total = info->totalram + info->totalswap;
+	if (mem_total < info->totalram || mem_total < info->totalswap)
 		goto out;
 	bitcount = 0;
-	mem_unit = val.mem_unit;
+	mem_unit = info->mem_unit;
 	while (mem_unit > 1) {
 		bitcount++;
 		mem_unit >>= 1;
@@ -1459,22 +1458,31 @@ asmlinkage long sys_sysinfo(struct sysinfo __user *info)
 
 	/*
 	 * If mem_total did not overflow, multiply all memory values by
-	 * val.mem_unit and set it to 1.  This leaves things compatible
+	 * info->mem_unit and set it to 1.  This leaves things compatible
 	 * with 2.2.x, and also retains compatibility with earlier 2.4.x
 	 * kernels...
 	 */
 
-	val.mem_unit = 1;
-	val.totalram <<= bitcount;
-	val.freeram <<= bitcount;
-	val.sharedram <<= bitcount;
-	val.bufferram <<= bitcount;
-	val.totalswap <<= bitcount;
-	val.freeswap <<= bitcount;
-	val.totalhigh <<= bitcount;
-	val.freehigh <<= bitcount;
+	info->mem_unit = 1;
+	info->totalram <<= bitcount;
+	info->freeram <<= bitcount;
+	info->sharedram <<= bitcount;
+	info->bufferram <<= bitcount;
+	info->totalswap <<= bitcount;
+	info->freeswap <<= bitcount;
+	info->totalhigh <<= bitcount;
+	info->freehigh <<= bitcount;
+
+out:
+	return 0;
+}
+
+asmlinkage long sys_sysinfo(struct sysinfo __user *info)
+{
+	struct sysinfo val;
+
+	do_sysinfo(&val);
 
- out:
 	if (copy_to_user(info, &val, sizeof(struct sysinfo)))
 		return -EFAULT;
 
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On Sun, Jan 07, 2007 at 05:22:45PM -0500, Carlos O'Donell wrote:
> On 1/7/07, Matthew Wilcox <matthew@wil.cx> wrote:
> >I think the Right Way to fix this is for some gcc hacker to implement an
> >__attribute__((packed_args)) that changes the calling convention for
> >that function, then we can define asmlinkage to use that on mips and
> >parisc.
> >
> >Any budding gcc hackers out there?  ;-)
> 
> The kernel syscall interface is by definition a different calling
> convention. On parisc the arguments are packed, and we have 6 argument
> registers. Would it be more usefull to say "__attribute__((syscall))"
> and let the compiler DTRT?
> 
> I'm sure this has been proposed by someone else?

That seems like the same as my suggestion, except for the spelling
(syscall vs packed_args).  Did I miss something?

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Subject: Re: [parisc-linux] sshd triggers Protection id trap
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On 1/6/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > After another attempt I could eventually log in again and thought this
> > "wasn't much" (so to speak). Then after a few more hours I realized
> > the loadavg on the machine was abnormally high. A sshd process was
> > taking 100% of CPU time. I tried to kill it (with SIGTERM first,
> > twice), and as it wouldn't terminate I issued a SIGKILL, which had the
> > very nice effect of taking down the whole machine, spitting endless
> > regdumps on the console (see the last dump of the following log).
> >
> > The console log / short story is here:
> > http://www.pateam.org/archive/dumps/sshd-code27
>
> This appears to be the same problem as I'm having killing hung
> java processes.  When I went in this morning to reboot the machine,
> it was looping endlessly at the same spot.  It had some hung java
> processes and I had tried to do a "shutdown -r +0".  I'm seeing
> this with 32bit UP kernel, so I don't think using a UP kernel is
> a workaround.
>
> I'd look at the dumps for the protection id traps.  Possibly,
> there might be a clue there as to what went wrong.

It's possible this bug has been there for a longer time than first
tought: here's what happened on my B180 running 2.6.8.1 and debian
sarge:

       _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
sshd (pid 5877): Protection id trap (code 27)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111110100001111 Not tainted
r00-03  00000000 103d0c40 10176cb0 2755ef40
r04-07  00000001 0007c7b0 000000c9 2755ef40
r08-11  00000000 0007c7b8 00000001 fffffff2
r12-15  0006bad8 00068cdc 0004d800 0006a4dc
r16-19  00068cdc 0006a4dc 0006b4dc 00000001
r20-23  00000001 00000003 0007c7b6 2755ef4e
r24-27  00000000 00000001 2232ff00 10309010
r28-31  00000001 00000004 1dad4140 10176aa0
sr0-3   00000000 000030d8 00000000 000030da
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10176d84 10176d88
 IIR: 0ed3d240    ISR: 000030da  IOR: 0007c7b6
 CPU:        0   CR30: 1dad4000 CR31: 10360000
 ORIG_R28: 0006a4dc
 IAOQ[0]: sys_poll+0x1f4/0x218
 IAOQ[1]: sys_poll+0x1f8/0x218
 RP(r2): sys_poll+0x120/0x218
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
sshd (pid 29561): Protection id trap (code 27)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111110000001111 Not tainted
r00-03  00000000 103d0c40 10176cb0 204e0dc0
r04-07  00000001 0007c778 000000c9 204e0dc0
r08-11  00000000 0007c780 00000001 fffffff2
r12-15  0006bad8 00068cdc 0004d800 0006a4dc
r16-19  00068cdc 0006a4dc 0006b4dc 00000001
r20-23  00000001 00000003 0007c77e 204e0dce
r24-27  00000000 00000001 1f46c800 10309010
r28-31  00000001 00000004 13d8c140 10176aa0
sr0-3   00000000 00004ea1 00000000 00004ea3
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10176d84 10176d88
 IIR: 0ed3d240    ISR: 00004ea3  IOR: 0007c77e
 CPU:        0   CR30: 13d8c000 CR31: 10360000
 ORIG_R28: 0006a4dc
 IAOQ[0]: sys_poll+0x1f4/0x218
 IAOQ[1]: sys_poll+0x1f8/0x218
 RP(r2): sys_poll+0x120/0x218


[varenet@greg ~]$ dpkg -l ssh
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  ssh            3.8.1p1-8.sarg Secure rlogin/rsh/rcp replacement (OpenSSH)
[varenet@greg ~]$ uname -a
Linux greg 2.6.8.1-pa11 #1 Thu Oct 28 15:02:44 CEST 2004 parisc GNU/Linux


HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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> > > The console log / short story is here:
> > > http://www.pateam.org/archive/dumps/sshd-code27
> >
> > This appears to be the same problem as I'm having killing hung
> > java processes.

I managed to get gdb backtraces for the hung java processes yesterday.
It looks like the hang could be a result of the clone bug in glibc.
clone is used in thread creation.

Of course, this doesn't explain why killing the processes crashes the
system.

>  IAOQ[1]: sys_poll+0x1f8/0x218
>  RP(r2): sys_poll+0x120/0x218

I've seen an infinite loop in sys_poll as well.

I agree the problem has been around for a long time.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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>> I'm sure this has been proposed by someone else?
> 
> That seems like the same as my suggestion, except for the spelling
> (syscall vs packed_args).  Did I miss something?

If you change this now, wouldn't it break existing binaries? I hope we 
don't end up with some syscalls using one convention and others using a 
different convention...

randolph
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On Mon, Jan 08, 2007 at 07:27:30AM +0800, Randolph Chung wrote:
> >>I'm sure this has been proposed by someone else?
> >
> >That seems like the same as my suggestion, except for the spelling
> >(syscall vs packed_args).  Did I miss something?
> 
> If you change this now, wouldn't it break existing binaries? I hope we 
> don't end up with some syscalls using one convention and others using a 
> different convention...

Uh, you asked this on IRC and I answered ...

<tausq> if you changed the syscall abi, wouldn't you break all the
existing binaries?
<kyle> not if we kept the old one...
<tausq> ?
<tausq> then how do you implement what willy is talking about?
<willy> tausq: I'm not talking about changing the syscall ABI
<willy> I'm talking about getting rid of our wrappers for, eg,
parisc_truncate64()

We *already* use the "wrong" ABI in glibc.  That's why we have the
parisc_* syscalls.
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Hi Kyle,

Looks good.  Just one nit and one comment.

On Sun, 7 Jan 2007 10:40:45 -0500 Kyle McMartin <kyle@parisc-linux.org> wrote:
>
> diff --git a/kernel/compat.c b/kernel/compat.c
> index 6952dd0..cebb4c2 100644
> --- a/kernel/compat.c
> +++ b/kernel/compat.c
 .
 .
 .
> +	    __put_user (s.uptime, &info->uptime) ||
                      ^
We don't put spaces in here ...

> +asmlinkage long sys_sysinfo(struct sysinfo __user *info)
> +{
> +	struct sysinfo val;
> +
> +	do_sysinfo(&val);
>
> - out:
>  	if (copy_to_user(info, &val, sizeof(struct sysinfo)))
>  		return -EFAULT;

People have complined before that this adds a whole stack frame to the
"normal" syscall path.  Personally I don't care, but it has been
mentioned.

--
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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Matthew Wilcox wrote:
> On Mon, Jan 08, 2007 at 07:27:30AM +0800, Randolph Chung wrote:
>>>> I'm sure this has been proposed by someone else?
>>> That seems like the same as my suggestion, except for the spelling
>>> (syscall vs packed_args).  Did I miss something?
>> If you change this now, wouldn't it break existing binaries? I hope we 
>> don't end up with some syscalls using one convention and others using a 
>> different convention...
> 
> Uh, you asked this on IRC and I answered ...

I didn't see this until later -- stupid timezones.. :)

Now I understand what you are trying to do.... dunno how hard it is to
do it in gcc though.

randolph
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On Monday 08 January 2007 00:43, Stephen Rothwell wrote:
> > +asmlinkage long sys_sysinfo(struct sysinfo __user *info)
> > +{
> > +=A0=A0=A0=A0=A0struct sysinfo val;
> > +
> > +=A0=A0=A0=A0=A0do_sysinfo(&val);
> >
> > - out:
> > =A0=A0=A0=A0=A0=A0if (copy_to_user(info, &val, sizeof(struct sysinfo)))
> > =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0return -EFAULT;
>=20
> People have complined before that this adds a whole stack frame to the
> "normal" syscall path. =A0Personally I don't care, but it has been
> mentioned.

It might be a concern for something like 'read' which is called frequently
and in strange ways, but for 'sysinfo' this really should not matter.

	Arnd <><
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On Mon, 8 Jan 2007 06:54:26 +0100 Arnd Bergmann <arnd@arndb.de> wrote:
>
> > People have complined before that this adds a whole stack frame to the
> > "normal" syscall path. =A0Personally I don't care, but it has been
> > mentioned.
>
> It might be a concern for something like 'read' which is called frequently
> and in strange ways, but for 'sysinfo' this really should not matter.

Absolutely true.

--
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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> On 1/8/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > I managed to get gdb backtraces for the hung java processes yesterday.
> > It looks like the hang could be a result of the clone bug in glibc.
> > clone is used in thread creation.
> 
> The clone bug is a failure to restore r19 correctly. This results in
> an immediate crash when attempting to access a variable via the PIC
> register. It doesn't matter in 99% of the cases where the $$dyncall
> sets r19 and we jump to the target plabel.
> 
> I argue that this is not the clone bug.
> 
> > Of course, this doesn't explain why killing the processes crashes the
> > system.
> 
> It doesn't explain it ... because it's not that bug.

Another example:

dave     22128     1  0 13:03 ?        00:00:00 /home/dave/gnu/gcc-4.3/objdir/hppa-linux/libjava/testsuite/Process_2.exe
dave     22129     1 85 13:03 ?        07:33:07 /home/dave/gnu/gcc-4.3/objdir/hppa-linux/libjava/testsuite/Process_2.exe
dave     22130 22129  0 13:03 ?        00:00:00 [sh] <defunct>

>>>From top:
22128 dave      15   0 50948  28m  20m S  0.0  2.9   0:00.00 Process_2.exe
22129 dave      25   0 50948  28m  20m T  0.0  2.9 457:14.08 Process_2.exe
22130 dave      20   0     0    0    0 Z  0.0  0.0   0:00.01 sh <defunct>

$ gdb Process_2.exe 22129
...
(gdb) bt
#0  0x40601a30 in __pthread_manager () from /lib/libpthread.so.0
#1  0x41a50498 in _Jv_CondWait (cv=0x40b4e000, mu=0xeae0c29,
    millis=<value optimized out>, nanos=208)
    at ../../../gcc/libjava/posix-threads.cc:179
#2  0x41a31794 in gnu::gcj::runtime::FinalizerThread::run (
    this=<value optimized out>)
    at ../../../gcc/libjava/gnu/gcj/runtime/natFinalizerThread.cc:57
#3  0x41a45c50 in _Jv_ThreadRun (thread=0x4052fd70)
    at ../../../gcc/libjava/java/lang/natThread.cc:302
#4  0x41a4fdd4 in really_start (x=0x400c38a0)
    at ../../../gcc/libjava/posix-threads.cc:445
#5  0x42738714 in GC_start_routine (arg=0x400e2f80)
    at ../../../gcc/boehm-gc/pthread_support.c:1294
#6  0x4060128c in pthread_start_thread () from /lib/libpthread.so.0
#7  0x409ff780 in clone () from /lib/libc.so.6
#8  0x409ff780 in clone () from /lib/libc.so.6
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

As far as I can tell, this process is "stuck" at 0x40601a30 although
I don't think setting breaks on a running process works.  The process
isn't doing anything special:

(gdb) disass 0x40601a20 0x40601a40
Dump of assembler code from 0x40601a20 to 0x40601a40:
0x40601a20 <__pthread_manager+1012>:    ldw 0(r22),r20
0x40601a24 <__pthread_manager+1016>:    add,l r20,ret0,r20
0x40601a28 <__pthread_manager+1020>:    ldi 1,ret0
0x40601a2c <__pthread_manager+1024>:    stw r20,0(r22)
0x40601a30 <__pthread_manager+1028>:    stw ret0,c(r5)
0x40601a34 <__pthread_manager+1032>:    ldo 1bc(r5),ret0
0x40601a38 <__pthread_manager+1036>:    add,l r20,r7,r3
0x40601a3c <__pthread_manager+1040>:    depw,z r7,30,31

gdb Process_2.exe 22129
...
(gdb) bt
#0  0x409e68b4 in sched_yield () from /lib/libc.so.6
#1  0x406055f0 in __pthread_acquire () from /lib/libpthread.so.0
#2  0x4060585c in __pthread_alt_unlock () from /lib/libpthread.so.0
#3  0x406024d4 in pthread_mutex_unlock () from /lib/libpthread.so.0
#4  0x41ebcea0 in java.lang.ConcreteProcess$ProcessManager.run()void (
    this=0x40542e40) at java/lang/ConcreteProcess.java:35
#5  0x41a45c50 in _Jv_ThreadRun (thread=0x40542e40)
    at ../../../gcc/libjava/java/lang/natThread.cc:302
#6  0x41a4fdd4 in really_start (x=0x400c3800)
    at ../../../gcc/libjava/posix-threads.cc:445
#7  0x42738714 in GC_start_routine (arg=0x400e2ec0)
    at ../../../gcc/boehm-gc/pthread_support.c:1294
#8  0x4060128c in pthread_start_thread () from /lib/libpthread.so.0
#9  0x409ff780 in clone () from /lib/libc.so.6
#10 0x409ff780 in clone () from /lib/libc.so.6
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

This process appears to be trying to acquire a lock in __pthread_acquire
which is always locked.  So, it spins calling sched_yield and/or
nanosleep.

When I quit gdb, I see:

(gdb) quit
The program is running.  Quit anyway (and detach it)? (y or n) y
Quitting: Can't detach LWP 22125: No such process

kill -9 22128 22129
just crashed the system.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Jan 08, 2007 at 10:39:58PM -0500, Carlos O'Donell wrote:
> This is linuxthreads. One thread is the manager, the other thread is
> doing the real work. You *must* find out why killing that thread
> crashes the system. That is clearly a kernel bug.
> 
> The stuck process could be a compiler, java, or glibc bug.
> 

echo p >/proc/sysrq-trigger or
echo t >/proc/sysrq-trigger

Would probably yield some useful information if the fucked process is still
being scheduled.
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> echo p >/proc/sysrq-trigger or
> echo t >/proc/sysrq-trigger

Until I get the time to install a serial console, the above aren't
very useful.

> Would probably yield some useful information if the fucked process is still
> being scheduled.

I think all the hung processes aren't being scheduled.  strace shows
nothing and evertime I attach with gdb the processes are always at
exactly the same place.  It's killing the thread manager process that
crashes the system.  The others can be killed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, Jan 09, 2007 at 09:05:33PM -0500, John David Anglin wrote:
> I think all the hung processes aren't being scheduled.  strace shows
> nothing and evertime I attach with gdb the processes are always at
> exactly the same place.  It's killing the thread manager process that
> crashes the system.  The others can be killed.

Running "make -j4" on a 2-way machine with 2.6.20-rc3, top shows
processes being scheduled only on CPU 0. CPU 1 is always idle.
This was reproducible with 2.6.20-rc[23] on a500 and rp3440.
I've verified this bug doesn't exist on 2.6.17-pa6.
I need to retest with something more recent (ie 2.6.19).

So I'm pretty sure we have a general scheduling bug and the above comments
suggest these might be related problem...no evidence of course.
Ideas on where I might start looking for the general bug?

thanks,
grant
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Subject: [parisc-linux] [PATCH] shmat() and CONFIG_STACK_GROWSUP
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I think this patch for the shmat() is obviously correct for our stack (which grows up).
Basically we gain a small region of 4 Pages in which shmat() may map memory.

Ok ?
If yes, should I commit or send to linux-kernel mailing list ?

Helge

diff --git a/ipc/shm.c b/ipc/shm.c
index 6d16bb6..f5cc635 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -852,6 +852,7 @@ long do_shmat(int shmid, char __user *sh
 		user_addr = ERR_PTR(-EINVAL);
 		if (find_vma_intersection(current->mm, addr, addr + size))
 			goto invalid;
+#ifndef CONFIG_STACK_GROWSUP
 		/*
 		 * If shm segment goes below stack, make sure there is some
 		 * space left for the stack to grow (at least 4 pages).
@@ -859,6 +860,7 @@ long do_shmat(int shmid, char __user *sh
 		if (addr < current->mm->start_stack &&
 		    addr > current->mm->start_stack - size - PAGE_SIZE * 5)
 			goto invalid;
+#endif
 	}
 		
 	user_addr = (void*) do_mmap (file, addr, size, prot, flags, 0);
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On Thu, Jan 11, 2007 at 08:15:58PM +0100, Helge Deller wrote:
> I think this patch for the shmat() is obviously correct for our stack (which grows up).
> Basically we gain a small region of 4 Pages in which shmat() may map memory.
> 
> Ok ?
> If yes, should I commit or send to linux-kernel mailing list ?
> 

The latter please, I don't feel comfortable merging such things before they
have had discussion somewhere. You can commit it too, but please make sure it
gets sent to linux-kernel.

Thanks,
	Kyle
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Grant Grundler wrote:
> On Tue, Jan 09, 2007 at 09:05:33PM -0500, John David Anglin wrote:
>> I think all the hung processes aren't being scheduled.  strace shows
>> nothing and evertime I attach with gdb the processes are always at
>> exactly the same place.  It's killing the thread manager process that
>> crashes the system.  The others can be killed.
> 
> Running "make -j4" on a 2-way machine with 2.6.20-rc3, top shows
> processes being scheduled only on CPU 0. CPU 1 is always idle.
> This was reproducible with 2.6.20-rc[23] on a500 and rp3440.
the same with 2.6.20-rc4 with 32bit smp kernel on a d380.

> I've verified this bug doesn't exist on 2.6.17-pa6.
> I need to retest with something more recent (ie 2.6.19).
> 
mmm, some time ago it was easy to grab those src thanks to "Source Tarballs" but today how may I grab it from git?


Tia,
	Joel
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Subject: Re: [parisc-linux] killing a set of user processes causes system
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> > Also, X is broken again.  It seems the card is outputing at higher

> I'll look into this when I find time, but compiling X is not my favorite task :-)

As of yesterday (xserver-xorg 7.1.0-10), the frame buffer and mouse
were working again.  However, keyboard input doesn't work.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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I got one of those traps again today trying to boot git head on my rp3440:

Configuring network interfaces...done.
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
sh (pid 625): Protection id trap (code 27)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111001100001111 Not tainted
r00-03  000000ff0804f30f 000000004060a340 0000000000000068 00000000fb199c10
r04-07  00000000405fd340 000000007eb24190 00000000000ded34 00000000000ded34
r08-11  0000000000000000 00000000000f2508 0000000000000000 0000000000000008
r12-15  0000000000000000 0000000000000000 00000000000f1f28 0000000000000001
r16-19  00000000000dd534 00000000000ad800 00000000000efa18 0000000000000000
r20-23  0000000000000000 0000000000000803 0000000000000000 000000007eb242b0
r24-27  0000000000000068 00000000fb199c10 000000000000001f 00000000405fd340
r28-31  0000000044c4f7c5 000000007eb242a0 000000007eb24480 00000000fb199c10
sr00-03  00000000002b2800 0000000000000000 00000000002b2800 00000000002b2800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402e62b0 00000000402e62b4
 IIR: 0f3692a8    ISR: 00000000002b2800  IOR: 00000000fb199c10
 CPU:        0   CR30: 000000007eb24000 CR31: 00000000405b4000
 ORIG_R28: 00000000405fd340
 IAOQ[0]: pa_memcpy+0x78/0x2b0
 IAOQ[1]: pa_memcpy+0x7c/0x2b0
 RP(r2): 0x68
Backtrace:

/etc/init.d/rc: line 77:   625 Segmentation fault      $@
Initializing random number generator...done.
tg3: eth0: Link is up at 1000 Mbps, full duplex.
tg3: eth0: Flow control is off for TX and off for RX.

That seems to have killed the boot process, I didn't get a login prompt

On 1/12/07, Joel Soete <soete.joel@scarlet.be> wrote:
>
>
> Grant Grundler wrote:
> > On Tue, Jan 09, 2007 at 09:05:33PM -0500, John David Anglin wrote:
> >> I think all the hung processes aren't being scheduled.  strace shows
> >> nothing and evertime I attach with gdb the processes are always at
> >> exactly the same place.  It's killing the thread manager process that
> >> crashes the system.  The others can be killed.
> >
> > Running "make -j4" on a 2-way machine with 2.6.20-rc3, top shows
> > processes being scheduled only on CPU 0. CPU 1 is always idle.
> > This was reproducible with 2.6.20-rc[23] on a500 and rp3440.
> the same with 2.6.20-rc4 with 32bit smp kernel on a d380.
>
> > I've verified this bug doesn't exist on 2.6.17-pa6.
> > I need to retest with something more recent (ie 2.6.19).
> >
> mmm, some time ago it was easy to grab those src thanks to "Source Tarballs" but today how may I grab it from git?
>
>
> Tia,
>         Joel
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>


-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On 1/15/07, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> I got one of those traps again today trying to boot git head on my rp3440:
>
> Configuring network interfaces...done.
>       _______________________________
>      < Your System ate a SPARC! Gah! >
>       -------------------------------
>              \   ^__^
>               \  (xx)\_______
>                  (__)\       )\/\
>                   U  ||----w |
>                      ||     ||
> sh (pid 625): Protection id trap (code 27)
>
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001001111001100001111 Not tainted
> r00-03  000000ff0804f30f 000000004060a340 0000000000000068 00000000fb199c10
> r04-07  00000000405fd340 000000007eb24190 00000000000ded34 00000000000ded34
> r08-11  0000000000000000 00000000000f2508 0000000000000000 0000000000000008
> r12-15  0000000000000000 0000000000000000 00000000000f1f28 0000000000000001
> r16-19  00000000000dd534 00000000000ad800 00000000000efa18 0000000000000000
> r20-23  0000000000000000 0000000000000803 0000000000000000 000000007eb242b0
> r24-27  0000000000000068 00000000fb199c10 000000000000001f 00000000405fd340
> r28-31  0000000044c4f7c5 000000007eb242a0 000000007eb24480 00000000fb199c10
> sr00-03  00000000002b2800 0000000000000000 00000000002b2800 00000000002b2800
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
>
> IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402e62b0 00000000402e62b4
>  IIR: 0f3692a8    ISR: 00000000002b2800  IOR: 00000000fb199c10
>  CPU:        0   CR30: 000000007eb24000 CR31: 00000000405b4000
>  ORIG_R28: 00000000405fd340
>  IAOQ[0]: pa_memcpy+0x78/0x2b0
>  IAOQ[1]: pa_memcpy+0x7c/0x2b0
>  RP(r2): 0x68
> Backtrace:
>
> /etc/init.d/rc: line 77:   625 Segmentation fault      $@
> Initializing random number generator...done.
> tg3: eth0: Link is up at 1000 Mbps, full duplex.
> tg3: eth0: Flow control is off for TX and off for RX.
>
> That seems to have killed the boot process, I didn't get a login prompt

I don't know if that's related but it seems that 1 out of 2 boot
attempts the kernel doesn't get past the startup of INIT and freezes
there. I don't think this is my 'ldap' bug because this box is
properly configured to avoid it. Something else is happening I
suppose....

HTH

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
_______________________________________________
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Xref: news.gmane.org gmane.linux.ports.parisc:24243

One last crash dump before I give up trying to boot this kernel:

VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: <0>------------[ cut here ]------------
Badness at arch/parisc/kernel/smp.c:353
Backtrace:
 [<000000004014b324>] irq_exit+0x6c/0x78
 [<00000000401150c0>] do_cpu_irq_mask+0x1b8/0x358
 [<000000004017e9e8>] __get_free_pages+0x48/0xc8
 [<0000000040111c38>] flush_data_cache+0x28/0x38
 [<000000004015da98>] flush_workqueue+0xb0/0x108
 [<00000000401109ac>] free_initmem+0x7c/0x318
 [<000000004010347c>] ret_from_kernel_thread+0x24/0x40

272k freed
Write protecting the kernel read-only data: 466k
INIT: version 2.86 booting
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
sh (pid 361): Protection id trap (code 27)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111011000001111 Not tainted
r00-03  000000ff0804f60f 000000004060a340 0000000000000068 00000000fb2efc10
r04-07  00000000405fd340 000000007f320190 00000000000ded34 00000000000ded34
r08-11  00000000000ded34 00000000000ded34 0000000000000000 0000000000000008
r12-15  0000000000000000 0000000000000000 00000000001099e8 0000000000000001
r16-19  00000000000dd534 00000000000ad800 0000000000109c58 0000000000000000
r20-23  0000000000000000 0000000000000803 0000000000000000 000000007f3202b0
r24-27  0000000000000068 00000000fb2efc10 000000000000001f 00000000405fd340
r28-31  0000000044c4f6ed 000000007f3202a0 000000007f320480 00000000fb2efc10
sr00-03  000000000005c800 0000000000000000 000000000005c800 000000000005c800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402e62b0 00000000402e62b4
 IIR: 0f3692a8    ISR: 000000000005c800  IOR: 00000000fb2efc10
 CPU:        0   CR30: 000000007f320000 CR31: 00000000405b4000
 ORIG_R28: 00000000405fd340
 IAOQ[0]: pa_memcpy+0x78/0x2b0
 IAOQ[1]: pa_memcpy+0x7c/0x2b0
 RP(r2): 0x68
Backtrace:

/etc/init.d/rc: line 77:   361 Segmentation fault      $@
      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
sh (pid 378): Protection id trap (code 27)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  000000ff0804ff0f 00000000405ff340 000000004020a128 000000000010e058
r04-07  00000000405fd340 000000007f2c8190 0000000000000018 0000000000000001
r08-11  0000000000000000 000000007f358280 000000007f72f5c0 000000007f45f400
r12-15  0000000000000000 000000000010e008 000000007f2c8190 00000000405dde60
r16-19  0000000000000000 0000000000000000 00000000000ded34 000000007f2c8000
r20-23  0000000000000001 ffffffffffffffea 00000000001ed1d6 0000000006fd155b
r24-27  0000000000000004 000000007f45a8ee 000000007f2c8190 00000000405fd340
r28-31  ffffffffffffffea 000000007f2c84f0 000000007f2c85c0 000000007f72f5b5
sr00-03  000000000006f000 0000000000000000 0000000000000000 000000000006f000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401bbb24 00000000401bbb28
 IIR: 0c76d2c0    ISR: 000000000006f000  IOR: 000000000010e058
 CPU:        0   CR30: 000000007f2c8000 CR31: 00000000405b4000
 ORIG_R28: 000000007f2c8480
 IAOQ[0]: filldir64+0x18c/0x1b8
 IAOQ[1]: filldir64+0x190/0x1b8
 RP(r2): call_filldir+0x90/0x120
Backtrace:

/etc/init.d/rc: line 77:   378 Segmentation fault      $@
Activating swap:swapon on /dev/sda2
Adding 2000084k swap on /dev/sda2.  Priority:-1 extents:1 across:2000084k
.
Will now check root file system:fsck 1.40-WIP (14-Nov-2006)
[/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a -C0 /dev/sda3
/dev/sda3: clean, 19465/2198880 files, 202145/4393777 blocks
.
EXT3 FS on sda3, internal journal
Setting the system clock again..
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access method.
System Clock set. Local time: Mon Jan 15 00:22:05 UTC 2007.
Cleaning up ifupdown...



On 1/15/07, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> On 1/15/07, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> > I got one of those traps again today trying to boot git head on my rp3440:
> >
> > Configuring network interfaces...done.
> >       _______________________________
> >      < Your System ate a SPARC! Gah! >
> >       -------------------------------
> >              \   ^__^
> >               \  (xx)\_______
> >                  (__)\       )\/\
> >                   U  ||----w |
> >                      ||     ||
> > sh (pid 625): Protection id trap (code 27)
> >
> >      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > PSW: 00001000000001001111001100001111 Not tainted
> > r00-03  000000ff0804f30f 000000004060a340 0000000000000068 00000000fb199c10
> > r04-07  00000000405fd340 000000007eb24190 00000000000ded34 00000000000ded34
> > r08-11  0000000000000000 00000000000f2508 0000000000000000 0000000000000008
> > r12-15  0000000000000000 0000000000000000 00000000000f1f28 0000000000000001
> > r16-19  00000000000dd534 00000000000ad800 00000000000efa18 0000000000000000
> > r20-23  0000000000000000 0000000000000803 0000000000000000 000000007eb242b0
> > r24-27  0000000000000068 00000000fb199c10 000000000000001f 00000000405fd340
> > r28-31  0000000044c4f7c5 000000007eb242a0 000000007eb24480 00000000fb199c10
> > sr00-03  00000000002b2800 0000000000000000 00000000002b2800 00000000002b2800
> > sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> >
> > IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402e62b0 00000000402e62b4
> >  IIR: 0f3692a8    ISR: 00000000002b2800  IOR: 00000000fb199c10
> >  CPU:        0   CR30: 000000007eb24000 CR31: 00000000405b4000
> >  ORIG_R28: 00000000405fd340
> >  IAOQ[0]: pa_memcpy+0x78/0x2b0
> >  IAOQ[1]: pa_memcpy+0x7c/0x2b0
> >  RP(r2): 0x68
> > Backtrace:
> >
> > /etc/init.d/rc: line 77:   625 Segmentation fault      $@
> > Initializing random number generator...done.
> > tg3: eth0: Link is up at 1000 Mbps, full duplex.
> > tg3: eth0: Flow control is off for TX and off for RX.
> >
> > That seems to have killed the boot process, I didn't get a login prompt
>
> I don't know if that's related but it seems that 1 out of 2 boot
> attempts the kernel doesn't get past the startup of INIT and freezes
> there. I don't think this is my 'ldap' bug because this box is
> properly configured to avoid it. Something else is happening I
> suppose....
>
> HTH
>
> --
> Thibaut VARENE
> http://www.parisc-linux.org/~varenet/
>


-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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On Mon, Jan 15, 2007 at 01:16:00AM +0100, Thibaut VARENE wrote:
> 
> I don't know if that's related but it seems that 1 out of 2 boot
> attempts the kernel doesn't get past the startup of INIT and freezes
> there. I don't think this is my 'ldap' bug because this box is
> properly configured to avoid it. Something else is happening I
> suppose....
> 

I'm seeing this too with 2.6.20-rc5 on SMP, I don't see it with -rc4, or when
booting a UP kernel. Will bisect to find what's going on.
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> On Mon, Jan 15, 2007 at 01:16:00AM +0100, Thibaut VARENE wrote:
> > 
> > I don't know if that's related but it seems that 1 out of 2 boot
> > attempts the kernel doesn't get past the startup of INIT and freezes
> > there. I don't think this is my 'ldap' bug because this box is
> > properly configured to avoid it. Something else is happening I
> > suppose....
> > 
> 
> I'm seeing this too with 2.6.20-rc5 on SMP, I don't see it with -rc4, or when
> booting a UP kernel. Will bisect to find what's going on.

I'm running 2.6.20-rc3 UP.  It's been up ten days doing GCC builds.
There's the occassional SEGV in user processes, particularly building
libjava.  I got rid of ldap since I don't use it and it was causing
boot problems.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Jan 14, 2007 at 07:36:43PM -0500, Kyle McMartin wrote:
> I'm seeing this too with 2.6.20-rc5 on SMP, I don't see it with -rc4, or when
> booting a UP kernel. Will bisect to find what's going on.

Try reverting this patch and see if it fixes your hanging boot problems...
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=e5e5673f828623e58a401862b33173591faaeaff
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> Hi pa-ckers
> 
[snip]
> 
> That's with git head (+ tausq's cache patch
is it that stuff: <http://parisc-linux.org/~tausq/cache.diff.txt>

I test that on b2k running 32bit up kernel but failled to boot???

> + kyle's sysinfo patch +
oops I trusted it was merged now???

> e5e5673f828623e58a401862b33173591faaeaff reverted)
> 
interesting I will try it too

> HTH
> 
> T-Bone
> 
> -- 
> Thibaut VARENE
> http://www.parisc-linux.org/~varenet/
> _______________________________________________
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> 
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Xref: news.gmane.org gmane.linux.ports.parisc:24248

On 1/15/07, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Sun, Jan 14, 2007 at 07:36:43PM -0500, Kyle McMartin wrote:
> > I'm seeing this too with 2.6.20-rc5 on SMP, I don't see it with -rc4, or when
> > booting a UP kernel. Will bisect to find what's going on.
>
> Try reverting this patch and see if it fixes your hanging boot problems...
> http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=e5e5673f828623e58a401862b33173591faaeaff

Indeed, the box boots fine with that patch reverted.

HTH

-- 
Thibaut VARENE
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Hi pa-ckers

On my rp3440:

top - 13:01:02 up 2 min,  1 user,  load average: 3.20, 1.16, 0.42
Tasks:  83 total,   5 running,  78 sleeping,   0 stopped,   0 zombie
Cpu0  :  0.3%us,  1.0%sy, 98.7%ni,  0.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Cpu1  :  0.0%us,  0.0%sy,  0.0%ni, 99.7%id,  0.3%wa,  0.0%hi,  0.0%si,  0.0%st
Cpu2  :  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Cpu3  :  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   4115100k total,   183696k used,  3931404k free,     2992k buffers
Swap:  2000084k total,        0k used,  2000084k free,    22860k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  909 boinc     39  19 76736  61m 2816 R   25  1.5   0:59.73 setiathome_enha
  917 boinc     39  19 39916  25m 2784 R   25  0.6   0:31.12 setiathome_enha
  923 boinc     39  19 38760  24m 2784 R   25  0.6   0:16.42
setiathome_enha   920 boinc     39  19 40312  26m 2784 R   25  0.7
0:21.06 setiathome_enha
  926 root      15   0  2624 1132  888 R    1  0.0   0:00.24 top
    1 root      15   0  2340  752  640 S    0  0.0   0:02.35 init
    2 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/0
    3 root      34  19     0    0    0 S    0  0.0   0:00.00 ksoftirqd/0
    4 root      RT   0     0    0    0 S    0  0.0   0:00.00 watchdog/0

See how only the first CPU gets used, and how the 4 instances of
setiathome share 25% cpu each...

That's with git head (+ tausq's cache patch + kyle's sysinfo patch +
e5e5673f828623e58a401862b33173591faaeaff reverted)

HTH

T-Bone

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On 1/17/07, Joel Soete <soete.joel@scarlet.be> wrote:
> > Hi pa-ckers
> >
> [snip]
> >
> > That's with git head (+ tausq's cache patch
> is it that stuff: <http://parisc-linux.org/~tausq/cache.diff.txt>
>
> I test that on b2k running 32bit up kernel but failled to boot???

It only works on pa8800 cpus so far.

> > + kyle's sysinfo patch +
> oops I trusted it was merged now???

No it's not.

Greetings

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: Re: [parisc-linux] Broken scheduler?
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> On 1/17/07, Joel Soete <soete.joel@scarlet.be> wrote:
> > > Hi pa-ckers
> > >
> > [snip]
> > >
> > > That's with git head (+ tausq's cache patch
> > is it that stuff: <http://parisc-linux.org/~tausq/cache.diff.txt>
> >
> > I test that on b2k running 32bit up kernel but failled to boot???
> 
> It only works on pa8800 cpus so far.
> 
> > > + kyle's sysinfo patch +
> > oops I trusted it was merged now???
> 
> No it's not.
> 
> Greetings
> 
Ok so I took the src tree:
author	Kyle McMartin <kyle@parisc-linux.org>
	Tue, 16 Jan 2007 05:10:29 +0000 (00:10 -0500)
committer	Kyle McMartin <kyle@parisc-linux.org>
	Tue, 16 Jan 2007 05:10:29 +0000 (00:10 -0500)
commit	c1dba753187a1af52c1938450044be53da50de4d
tree	04c348f72c54168b7c649ab146709e6ccaa1e44e
parent	34ad633b0f9d004e2400124d9f56b83a6e16f6a1

and just revert previously mentioned commit
(http://www.kernel.org/git/?p=3Dlinux/kernel/git/torvalds/linux-2.6.git;a=
=3Dcommitdiff;h=3De5e5673f828623e58a401862b33173591faaeaff)

which indeed help to boot this kernel configure 32bit smp for the d380 an=
d
also 64bit smp for n4k (not more smp since a long time).

That said, unfortunately nothing seems to be scheduled on cpu1:
e.g make -j 4 vmlinux on d380
top - 13:39:51 up 18 min,  2 users,  load average: 3.29, 2.04, 1.39
Tasks:  99 total,   5 running,  94 sleeping,   0 stopped,   0 zombie
Cpu0  : 81.6%us, 14.9%sy,  0.0%ni,  0.0%id,  0.0%wa,  0.0%hi,  3.5%si,  0=
.0%st
Cpu1  :  0.0%us,  0.0%sy,  0.0%ni, 99.1%id,  0.0%wa,  0.9%hi,  0.0%si,  0=
.0%st
Mem:    255028k total,   113996k used,   141032k free,    14940k buffers
Swap:   385552k total,        0k used,   385552k free,    47672k cached
Change delay from 1.0 to: 
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  P WCHAN    
COMMAND                                                   
 4681 root      25   0  7232 3544 2004 R   24  1.4   0:00.39 0 intr_chec =
cc1 
                                                      
 4677 root      25   0  8280 4140 2012 R   21  1.6   0:00.73 0 intr_chec =
cc1 
                                                      
 4676 root      25   0  8244 3948 2020 R   18  1.5   0:00.85 0 intr_chec =
cc1 
                                                      
 4673 root      22   0  8416 4160 2012 R   17  1.6   0:00.72 0 intr_chec =
cc1 
                                                      
 3360 jso       16   0  2908 1292  996 R    9  0.5   1:00.72 0 fd_instal =
top 
                                                      
 2078 gkrellmd  15   0  4388 1248 1000 S    8  0.5   1:31.38 0 select gkr=
ellmd
                                                  

Thanks,
    Joel

> -- 
> Thibaut VARENE
> http://www.parisc-linux.org/~varenet/
> 
> ---=0AScarlet One - Combinez l'ADSL avec la telephonie fixe illimitee e=
t epargnez 400 euros=0Ahttp://www.scarlet.be =0A

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Subject: Re: [parisc-linux] Broken scheduler?
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On Tue, Jan 16, 2007 at 01:00:22PM +0100, Thibaut VARENE wrote:
> See how only the first CPU gets used, and how the 4 instances of
> setiathome share 25% cpu each...

Yup...that's the same bug I report on Jan 10, 2007.

> That's with git head (+ tausq's cache patch + kyle's sysinfo patch +
> e5e5673f828623e58a401862b33173591faaeaff reverted)

I believe mine was with 2.6.20-rc2 kernel. I know scheduling works
with the 2.6.17-pa6 kernel (on gsyprf11) but haven't checked what the
behavior is for kernels between...I wanted to do that already but
have been too busy lately.

thanks,
grant
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Some of this is simply obvious:  we don't do compat for things like
shmat, which we should given that they're using unsigned long arguments.
The controversial change might be to move to the compat_sys calls for
msgsnd and msgrcv ... it looks to me like the ABI in sys_parisc32.c
might be different from the one in ipc/compat.c  can someone who has a
copy of glibc check this?

Thanks,

James

Index: linux-2.6/arch/parisc/kernel/sys_parisc32.c
===================================================================
--- linux-2.6.orig/arch/parisc/kernel/sys_parisc32.c	2006-06-23 10:06:57.000000000 -0500
+++ linux-2.6/arch/parisc/kernel/sys_parisc32.c	2007-01-18 16:16:53.000000000 -0600
@@ -475,58 +475,6 @@
     char mtext[1];
 };
 
-asmlinkage long sys32_msgsnd(int msqid,
-				struct msgbuf32 __user *umsgp32,
-				size_t msgsz, int msgflg)
-{
-	struct msgbuf *mb;
-	struct msgbuf32 mb32;
-	int err;
-
-	if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
-		return -ENOMEM;
-
-	err = get_user(mb32.mtype, &umsgp32->mtype);
-	mb->mtype = mb32.mtype;
-	err |= copy_from_user(mb->mtext, &umsgp32->mtext, msgsz);
-
-	if (err)
-		err = -EFAULT;
-	else
-		KERNEL_SYSCALL(err, sys_msgsnd, msqid, (struct msgbuf __user *)mb, msgsz, msgflg);
-
-	kfree(mb);
-	return err;
-}
-
-asmlinkage long sys32_msgrcv(int msqid,
-				struct msgbuf32 __user *umsgp32,
-				size_t msgsz, long msgtyp, int msgflg)
-{
-	struct msgbuf *mb;
-	struct msgbuf32 mb32;
-	int err, len;
-
-	if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
-		return -ENOMEM;
-
-	KERNEL_SYSCALL(err, sys_msgrcv, msqid, (struct msgbuf __user *)mb, msgsz, msgtyp, msgflg);
-
-	if (err >= 0) {
-		len = err;
-		mb32.mtype = mb->mtype;
-		err = put_user(mb32.mtype, &umsgp32->mtype);
-		err |= copy_to_user(&umsgp32->mtext, mb->mtext, len);
-		if (err)
-			err = -EFAULT;
-		else
-			err = len;
-	}
-
-	kfree(mb);
-	return err;
-}
-
 asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, s32 count)
 {
         mm_segment_t old_fs = get_fs();
@@ -639,21 +587,6 @@
 	return sys_lseek(fd, offset, origin);
 }
 
-asmlinkage long sys32_semctl(int semid, int semnum, int cmd, union semun arg)
-{
-        union semun u;
-	
-        if (cmd == SETVAL) {
-                /* Ugh.  arg is a union of int,ptr,ptr,ptr, so is 8 bytes.
-                 * The int should be in the first 4, but our argument
-                 * frobbing has left it in the last 4.
-                 */
-                u.val = *((int *)&arg + 1);
-                return sys_semctl (semid, semnum, cmd, u);
-	}
-	return sys_semctl (semid, semnum, cmd, arg);
-}
-
 long sys32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf,
 			  size_t len)
 {
Index: linux-2.6/arch/parisc/kernel/syscall_table.S
===================================================================
--- linux-2.6.orig/arch/parisc/kernel/syscall_table.S	2006-06-23 10:06:57.000000000 -0500
+++ linux-2.6/arch/parisc/kernel/syscall_table.S	2007-01-18 16:16:53.000000000 -0600
@@ -292,15 +292,15 @@
 	ENTRY_COMP(recvmsg)
 	ENTRY_SAME(semop)		/* 185 */
 	ENTRY_SAME(semget)
-	ENTRY_DIFF(semctl)
-	ENTRY_DIFF(msgsnd)
-	ENTRY_DIFF(msgrcv)
+	ENTRY_COMP(semctl)
+	ENTRY_COMP(msgsnd)
+	ENTRY_COMP(msgrcv)
 	ENTRY_SAME(msgget)		/* 190 */
 	ENTRY_SAME(msgctl)
-	ENTRY_SAME(shmat)
+	ENTRY_COMP(shmat)
 	ENTRY_SAME(shmdt)
 	ENTRY_SAME(shmget)
-	ENTRY_SAME(shmctl)		/* 195 */
+	ENTRY_COMP(shmctl)		/* 195 */
 	ENTRY_SAME(ni_syscall)		/* streams1 */
 	ENTRY_SAME(ni_syscall)		/* streams2 */
 	ENTRY_SAME(lstat64)
@@ -333,13 +333,13 @@
 	ENTRY_SAME(epoll_ctl)		/* 225 */
 	ENTRY_SAME(epoll_wait)
  	ENTRY_SAME(remap_file_pages)
-	ENTRY_SAME(semtimedop)
-	ENTRY_SAME(mq_open)
+	ENTRY_COMP(semtimedop)
+	ENTRY_COMP(mq_open)
 	ENTRY_SAME(mq_unlink)		/* 230 */
-	ENTRY_SAME(mq_timedsend)
-	ENTRY_SAME(mq_timedreceive)
-	ENTRY_SAME(mq_notify)
-	ENTRY_SAME(mq_getsetattr)
+	ENTRY_COMP(mq_timedsend)
+	ENTRY_COMP(mq_timedreceive)
+	ENTRY_COMP(mq_notify)
+	ENTRY_COMP(mq_getsetattr)
 	ENTRY_COMP(waitid)		/* 235 */
 	ENTRY_OURS(fadvise64_64)
 	ENTRY_SAME(set_tid_address)


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Xref: news.gmane.org gmane.linux.ports.parisc:24254

On Fri, Jan 19, 2007 at 11:39:55AM -0600, James Bottomley wrote:
> The controversial change might be to move to the compat_sys calls for
> msgsnd and msgrcv ... it looks to me like the ABI in sys_parisc32.c
> might be different from the one in ipc/compat.c  can someone who has a
> copy of glibc check this?

linking ipc/compat.c requires we first add this bit to arch/parisc/Kconfig:

config SYSVIPC_COMPAT
        bool
        depends on COMPAT && SYSVIPC
        default y

so that ipc/compat.c gets built.
And then add a few missing compat_XXX structs to asm-parisc/compat.h:

compat_key_t		same for all arches (s32)

compat_ipc64_perm	asm-sparc64/compat.h version looks the best to me
			but it has the "ushort" pad fields before the
			field it's padding for.
			I also looked at x86_64, s390, powerpc.

compat_shmid64_ds	Ditto
compat_msqid64_ds	Ditto
compat_semid64_ds	Ditto

Until I can commit the appended diff myself:
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

thanks,
grant


diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index e18eeec..fcc4c6f 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -242,6 +242,11 @@ config COMPAT
 	def_bool y
 	depends on 64BIT
 
+config SYSVIPC_COMPAT
+	bool
+	depends on COMPAT && SYSVIPC
+	default y
+
 config HPUX
 	bool "Support for HP-UX binaries"
 	depends on !64BIT
diff --git a/include/asm-parisc/compat.h b/include/asm-parisc/compat.h
index fe85790..4b41974 100644
--- a/include/asm-parisc/compat.h
+++ b/include/asm-parisc/compat.h
@@ -27,6 +27,8 @@ typedef u16	compat_nlink_t;
 typedef u16	compat_ipc_pid_t;
 typedef s32	compat_daddr_t;
 typedef u32	compat_caddr_t;
+typedef __kernel_fsid_t compat_fsid_t;
+typedef s32	compat_key_t;
 typedef s32	compat_timer_t;
 
 typedef s32	compat_int_t;
@@ -126,6 +128,68 @@ typedef u32		compat_sigset_word;
 #define COMPAT_OFF_T_MAX	0x7fffffff
 #define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL
 
+
+/* cloned from include/asm-sparc64/compat.h */
+struct compat_ipc64_perm {
+	compat_key_t key;
+	__compat_uid32_t uid;
+	__compat_gid32_t gid;
+	__compat_uid32_t cuid;
+	__compat_gid32_t cgid;
+	unsigned short __pad1;
+	compat_mode_t mode;
+	unsigned short __pad2;
+	unsigned short seq;
+	compat_ulong_t unused1;
+	compat_ulong_t unused2;
+};
+
+struct compat_semid64_ds {
+	struct compat_ipc64_perm sem_perm;
+	unsigned int __unused1;
+	compat_time_t sem_otime;
+	unsigned int __unused2;
+	compat_time_t sem_ctime;
+	compat_ulong_t sem_nsems;
+	compat_ulong_t __unused3;
+	compat_ulong_t __unused4;
+};
+
+struct compat_msqid64_ds {
+	struct compat_ipc64_perm msg_perm;
+	unsigned int __unused1;
+	compat_time_t msg_stime;
+	unsigned int __unused2;
+	compat_time_t msg_rtime;
+	unsigned int __unused3;
+	compat_time_t msg_ctime;
+	compat_ulong_t msg_cbytes;
+	compat_ulong_t msg_qnum;
+	compat_ulong_t msg_qbytes;
+	compat_pid_t msg_lspid;
+	compat_pid_t msg_lrpid;
+	compat_ulong_t __unused4;
+	compat_ulong_t __unused5;
+};
+
+struct compat_shmid64_ds {
+	struct compat_ipc64_perm shm_perm;
+	unsigned int __unused1;
+	compat_time_t shm_atime;
+	unsigned int __unused2;
+	compat_time_t shm_dtime;
+	unsigned int __unused3;
+	compat_time_t shm_ctime;
+	unsigned int __unused4;
+	compat_size_t shm_segsz;
+	compat_pid_t shm_cpid;
+	compat_pid_t shm_lpid;
+	compat_ulong_t shm_nattch;
+	compat_ulong_t __unused5;
+	compat_ulong_t __unused6;
+};
+
+
 /*
  * A pointer passed in from user mode. This should not
  * be used for syscall parameters, just declare them
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From: "Thibaut VARENE" <T-Bone@parisc-linux.org>
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Subject: [parisc-linux] palinux AWOL
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Xref: news.gmane.org gmane.linux.ports.parisc:24255

palinux is in bad shape:

Begin: Loading essential drivers... ...
SCSI subsystem initialized
sym0: <896> rev 0x7 at pci 0000:00:01.0 irq 67
sym0: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
sym1: <896> rev 0x7 at pci 0000:00:01.1 irq 68
sym1: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
sym1: SCSI BUS has been reset.
sym1: SCSI BUS mode change from SE to SE.
scsi1 : sym-2.2.3
sym1: SCSI BUS has been reset.
  Vendor: HP 73.4G  Model: ST373405LC        Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target1:0:15: tagged command queuing enabled, command queue depth 16.
 target1:0:15: Beginning Domain Validation
 target1:0:15: asynchronous
 target1:0:15: wide asynchronous
 target1:0:15: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 31)
 target1:0:15: Domain Validation skipping write tests
 target1:0:15: Ending Domain Validation
SCSI device sda: 143374738 512-byte hdwr sectors (73408 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write through w/ FUA
SCSI device sda: 143374738 512-byte hdwr sectors (73408 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write through w/ FUA
 sda: sda1 sda2
sd 1:0:15:0: Attached scsi disk sda
sym2: <875> rev 0x14 at pci 0000:00:02.0 irq 68
sym2: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
sym2: SCSI BUS has been reset.
scsi2 : sym-2.2.3
sym3: <875> rev 0x14 at pci 0000:00:02.1 irq 69
sym3: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
sym3: SCSI BUS has been reset.
scsi3 : sym-2.2.3
  Vendor: HP 73.4G  Model: ST373405LC        Rev: HP03
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target3:0:15: tagged command queuing enabled, command queue depth 16.
 target3:0:15: Beginning Domain Validation
 target3:0:15: asynchronous
 target3:0:15: wide asynchronous
 target3:0:15: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 16)
 target3:0:15: Domain Validation skipping write tests
 target3:0:15: Ending Domain Validation
SCSI device sdb: 143374738 512-byte hdwr sectors (73408 MB)
sdb: Write Protect is off
SCSI device sdb: drive cache: write through w/ FUA
SCSI device sdb: 143374738 512-byte hdwr sectors (73408 MB)
sdb: Write Protect is off
SCSI device sdb: drive cache: write through w/ FUA
 sdb: sdb1 sdb3 sdb4 < sdb5 sdb6 >
sd 3:0:15:0: Attached scsi disk sdb
Done.
Begin: Running /scripts/init-premount ...
Linux Tulip driver version 1.1.13-NAPI (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
eth0: Digital DS21142/43 Tulip rev 65 at Port 0x80, 00:30:6E:0C:6A:EA, IRQ 66.
tg3.c:v3.65 (August 07, 2006)
eth1: Tigon3 [partno(BCM95700A6) rev 7102 PHY(5401)]
(PCI:66MHz:64-bit) 10/100/1000BaseT Ethernet 00:04:76:3b:0e:a3
eth1: RXcsums[1] LinkChgREG[1] MIirq[1] ASF[0] Split[0] WireSpeed[0] TSOcap[0]
eth1: dma_rwctrl[76ff2d0f] dma_mask[32-bit]
eth2: Tigon3 [partno(BCM95700A6) rev 7102 PHY(5401)]
(PCI:66MHz:64-bit) 10/100/1000BaseT Ethernet 00:04:76:3b:13:e7
eth2: RXcsums[1] LinkChgREG[1] MIirq[1] ASF[0] Split[0] WireSpeed[0] TSOcap[0]
eth2: dma_rwctrl[76ff2d0f] dma_mask[32-bit]
Done.
Begin: Mounting root file system... ...
Begin: Running /scripts/local-top ...
Done.
Begin: Running /scripts/local-premount ...
Done.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: sdb5: orphan cleanup on readonly fs
EXT3-fs: sdb5: 5 orphan inodes deleted
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
Begin: Running /scripts/local-bottom ...
Done.
Done.
Begin: Running /scripts/init-bottom ...
Done.
INIT: version 2.86 booting
Setting hostname to 'palinux'...done.
Starting the hotplug events dispatcher: udevd.
Synthesizing the initial hotplug events...done.
Waiting for /dev to be fully populated...done.
Activating swap:swapon on /dev/sdb3
Adding 2097136k swap on /dev/sdb3.  Priority:-1 extents:1 across:2097136k
.
Will now check root file system:fsck 1.40-WIP (14-Nov-2006)
[/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a -C0 /dev/sdb5
/dev/sdb5: clean, 148055/1251712 files, 676876/2500107 blocks
.
EXT3 FS on sdb5, internal journal
Setting the system clock again..
System Clock set. Local time: Sun Jan 21 17:25:01 UTC 2007.
Cleaning up ifupdown....
Loading kernel module tulip.
Loading kernel module tg3.
Loading kernel module ip_tables.
ip_tables: (C) 2000-2006 Netfilter Core Team
Loading kernel module ip_conntrack.
Netfilter messages via NETLINK v0.30.
ip_conntrack version 2.4 (8192 buckets, 65536 max) - 304 bytes per conntrack
Loading kernel module ipt_state.
Loading kernel module ip_conntrack_ftp.
Loading device-mapper supportdevice-mapper: ioctl: 4.7.0-ioctl
(2006-06-24) initialised: dm-devel@redhat.com
.
Will now check all file systems.
fsck 1.40-WIP (14-Nov-2006)
Checking all file systems.
[/sbin/fsck.ext2 (1) -- /boot] fsck.ext2 -a -C0 /dev/sdb1
[/sbin/fsck.ext3 (2) -- /var/lib/cvs] fsck.ext3 -a /dev/sda1
/dev/sdb1: clean, 31/16064 files, 30944/64228 blocks
/dev/sda1: recovering journal
[/sbin/fsck.ext3 (2) -- /var] fsck.ext3 -a -C0 /dev/sdb6
/dev/sda1: clean, 250086/2252160 files, 1552790/4500200 blocks
[/sbin/fsck.ext3 (2) -- /home] fsck.ext3 -a /dev/sda2
/dev/sda2: recovering journal
/dev/sda2: clean, 2533673/6717440 files, 11741194/13420299 blocks
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: ABORT operation started.
sd 3:0:15:0: ABORT operation timed-out.
sd 3:0:15:0: DEVICE RESET operation started.
sd 3:0:15:0: DEVICE RESET operation timed-out.
sd 3:0:15:0: BUS RESET operation started.
sd 3:0:15:0: BUS RESET operation timed-out.
sd 3:0:15:0: HOST RESET operation started.
sym3: SCSI BUS has been reset.
sd 3:0:15:0: HOST RESET operation timed-out.
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not r error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: scsi: Device offlined - not ready after error recovery
sd 3:0:15:0: rejecting I/O to offline device
Buffer I/O error on device sdb6, logical block 42205184
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
Buffer I/O error on device sdb5, logical block 524298
lost page write due to I/O error on sdb5
sd 3:0:15:0: rejecting I/O to offline device
Buffer I/O error on device sdb5, logical block 524303
lost page write due to I/O error on sdb5
sd 3:0:15:0: rejecting I/O to oer I/O error on device sdb5, logical
block 786436lost page write due to I/O error on sdb5
Buffer I/O error on device sdb5, logical block 786437
lost page write due to I/O error on sdb5
sd 3:0:15:0: rejecting I/O to offline device
Buffer I/O error on device sdb5, logical block 786439
lost page write due to I/O error on sdb5
Buffer I/O error on device sdb5, logical block 786440
lost page write due to I/O error on sdb5
sd 3:0:15:0: rejectioffline device
Buffer I/O error on device sdb5, logical block 786448
lost page write due to I/O error on sdb5
sd 3:0:15:0: rejecting I/O to offline device
Buffer I/O error on device sdb5, logical block 851973
lost page write due to I/O error on sdb5
Buffer I/O error on device sdb5, logical block 851974
lost page write due to I/O error on sdb5
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rI/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
timer_interrupt(CPU 0): delayed! cycles 370FB9E3 rem 1775E3  next/now
2210D2F9B6/2247E2B399
sd 3:0:15:0: SCSI error: return code = 0x00010000
end_request: I/O error, dev sdb, sector 12061705
sd 3:0:15:0: rejting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
Aborting journal on device sdb5.
EXT3-fs error (device sdb5) in ext3_reserve_inode_write: Journal has aborted
Remounting filesystem read-only
sd 3:0:15:0: rejting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
EXT3-fs error (device sdb5) in ext3_reserve_inode_write: Journal has aborted
sd 3:0:15:0: rejcting I/O to offline device
sd 3:0:15:0: rejecting I/O to offline device
EXT3-fs error (device sdb5) in ext3_reserve_inode_write: Journal has aborted
sd 3:0:15:0: rejecting I/O to offline device
Error reading block 10551296 (Atsd 3:0:15:0: rejecting I/O to offline device
tempt to read block from filesyssd 3:0:15:0: rejecting I/O to offline device
tem resulted in short read) while reading inode and block bitmaps.

/dev/sdb6: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
        (i.e., without -a or -p options)
fscksd 3:0:15:0:g I/O to offline device
 died with exit status 4
File system check failsd 3:0:15:0: rejecting I/O to offline device
ed.
A log is being saved in /vsd 3:0:15:0: rejecting I/O to offline device
ar/log/fsck/checkfs if that location is writable.
Please repair the file system manually.
A maintenance shell will now be started.
CONTROL-D will terminate this shell and resume system boot.
/etc/rcS.d/S30checkfs.sh: line 69: /sbin/sulogin: Input/output error
Attempt to start maintenance shell failed.
Continuing with system boot in 5 seconds.
timer_interrupt(CPU 0): delayed! cycles 100001022 rem 8B822  next/now
2247E618B6/2347E628D8
timer_interrupt(CPU 0): delayed! cycles 100000373 rem 8AB73  next/now
2347F84BB6/2447F84F29
timer_interrupt(CPU 0): delayed! cycles 1000002ED rem 8AAED  next/now
24480A7EB6/25480A81A3


-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: [parisc-linux] backport of sba sg list management to ccio-dma
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Xref: news.gmane.org gmane.linux.ports.parisc:24256

--_=__=_XaM3_.1169544942.2A.626863.42.460.52.42.007.234827115
Content-Type: text/plain; charset=iso-8859-1
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Hi all,

I just put here for backup my latest draft work about subject.

This is already working but lake of ccio public doc I can't progress any =
more.

As my parisc farmer has to be decommssioned asap, I have very few chance =
to finish it; so fill free to use it if you find some interest.

That said, thanks to all for your suport all those years,

    Joel---=0AScarlet One - Combinez l'ADSL avec la telephonie fixe illim=
itee et epargnez 400 euros=0Ahttp://www.scarlet.be =0A
--_=__=_XaM3_.1169544942.2A.626863.42.460.52.42.007.234827115
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On 1/23/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> On 1/21/07, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:
> > palinux is in bad shape:
>
> So what does this mean? :-)

It means I spent a couple hours last night bringing it back to life,
cause I realized I wasn't receive email anymore 8)

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: [parisc-linux] Floppy disk support for 9000 series (715, 755,
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All:

I posted this to debian-hppa, but I thought I'd pass this along to
parisc-linux in case anyone isn't a member of both lists. If you are,
I apologize in advance for cluttering you inbox...

Could someone provide some details about why the TEAC floppy disk drives
(scsi) in the 9000 series workstations are not supported in the parisc
port?  Is it due to a lack of documentation, missing sd/53c700 support for
floppy drives, or lack of interest in floppy devices in general (or some
combination of the three)?  I realize floppy drives are antiquated and
scsi floppy drives are an enigma, but the application I'd like to run on
these machines requires floppy support, which worked fine under HP-UX. 
In an attempt investigate further, I installed MKLinux on a 715, and the
scsi floppy drive was supported through some combination of the MACH
kernel and it's hosted Linux kernel.  I've looked through the MKLinux
source code, and it appears that the MACH scsi driver had some support
for flexible disk drives (which I assume is the floppy drive), but I'm
uncertain if this is the only missing piece to the puzzle.  If anyone
has any additional info/insight, I'd really appreciated it.

Thanks,
James


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] Floppy disk support for 9000 series (715, 755,
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On Tue, Jan 23, 2007 at 03:51:32PM -0500, James K. Love wrote:
> All:
> 
> I posted this to debian-hppa, but I thought I'd pass this along to
> parisc-linux in case anyone isn't a member of both lists. If you are,
> I apologize in advance for cluttering you inbox...
> 
> Could someone provide some details about why the TEAC floppy disk drives
> (scsi) in the 9000 series workstations are not supported in the parisc
> port?

At one point I thought they did work.

>   Is it due to a lack of documentation, missing sd/53c700 support for
> floppy drives, or lack of interest in floppy devices in general (or some
> combination of the three)?

THere is clearly a lack of interest in the non-scsi floppy.
I've handed out some SCSI floppy drives in the past.

>   I realize floppy drives are antiquated and
> scsi floppy drives are an enigma, but the application I'd like to run on
> these machines requires floppy support, which worked fine under HP-UX. 
> In an attempt investigate further, I installed MKLinux on a 715, and the
> scsi floppy drive was supported through some combination of the MACH
> kernel and it's hosted Linux kernel.  I've looked through the MKLinux
> source code, and it appears that the MACH scsi driver had some support
> for flexible disk drives (which I assume is the floppy drive), but I'm
> uncertain if this is the only missing piece to the puzzle.  If anyone
> has any additional info/insight, I'd really appreciated it.

If you can figure out what's missing between linux and MKlinux there
is a good change it could get added. The closer you get to providing
a patch, the more likely it will get included.

hth,
grant
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after upgrading from 2.17.50.0.9 to 2.17.50.0.10 (.11 too), ld seems unable=
 to=20
do anything remotely basic ... is there something basic i'm missing here ? =
 i=20
verified that it isnt caused by the Gentoo patchsets as a vanilla build=20
exhibits the issue as well

$ cat test.c
int main() { fopen(); }
$ gcc test.c
/usr/hppa2.0-unknown-linux-gnu/binutils-bin/2.17.50.0.10/ld: /tmp/ccpL4Tbn.=
o(.text+0x10):=20
cannot handle R_PARISC_PCREL17F for fopen@@GLIBC_2.2
/usr/hppa2.0-unknown-linux-gnu/binutils-bin/2.17.50.0.10/ld: final link=20
failed: Bad value
collect2: ld returned 1 exit status
$ gcc --version
gcc (GCC) 4.1.1 (Gentoo 4.1.1-r3)
=2Dmike

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Subject: Re: [parisc-linux] binutils-2.17.50.0.10+ hates hppa ?
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> after upgrading from 2.17.50.0.9 to 2.17.50.0.10 (.11 too), ld seems unable=
>  to=20
> do anything remotely basic ... is there something basic i'm missing here ? =
>  i=20
> verified that it isnt caused by the Gentoo patchsets as a vanilla build=20
> exhibits the issue as well

There's been very few hppa changes to binutils in the past several
months.  I can't duplicate the problem, so maybe there's something
wrong with your libc setup.

> $ cat test.c
> int main() { fopen(); }
> $ gcc test.c
> /usr/hppa2.0-unknown-linux-gnu/binutils-bin/2.17.50.0.10/ld: /tmp/ccpL4Tbn.=
> o(.text+0x10):=20
> cannot handle R_PARISC_PCREL17F for fopen@@GLIBC_2.2
> /usr/hppa2.0-unknown-linux-gnu/binutils-bin/2.17.50.0.10/ld: final link=20
> failed: Bad value
> collect2: ld returned 1 exit status

You might try adding "-Wl,-v -Wl,--trace -Wl,--trace-symbol=fopen" to the
above gcc command and see what it shows.  This should show the command
used to link test and details of the lookup for the the symbol fopen.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] binutils-2.17.50.0.10+ hates hppa ?
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> On 1/27/07, Mike Frysinger <vapier@gentoo.org> wrote:
> > after upgrading from 2.17.50.0.9 to 2.17.50.0.10 (.11 too), ld seems unable to
> > do anything remotely basic ... is there something basic i'm missing here ?  i
> > verified that it isnt caused by the Gentoo patchsets as a vanilla build
> > exhibits the issue as well
> 
> 1. Build the last known working binutils, run the testsuite.
> 2. Build the new binutils and configure configure logs looking for
> failing configure tests or changes in the configured options.
> 3. Run the new binutils testsuite and compre the results to the old testsuite.
> 4. Post the results.

I just built the current CVS version of binutils with
gcc version 4.1.2 20061028 (prerelease) (Debian 4.1.1-19).
There are no unexpected fails.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] binutils-2.17.50.0.10+ hates hppa ?
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On Saturday 27 January 2007 11:13, John David Anglin wrote:
> > after upgrading from 2.17.50.0.9 to 2.17.50.0.10 (.11 too), ld seems
> > unable=3D to=3D20
> > do anything remotely basic ... is there something basic i'm missing here
> > ? =3D i=3D20
> > verified that it isnt caused by the Gentoo patchsets as a vanilla
> > build=3D20 exhibits the issue as well
>
> There's been very few hppa changes to binutils in the past several
> months.  I can't duplicate the problem, so maybe there's something
> wrong with your libc setup.

no, one of the very few changes to the hppa bfd broke things ... it's writi=
ng=20
the ELF OS ABI field as HPUX instead of Linux and well, that doesnt go over=
=20
very well :)

here's the weird thing ... looking at bfd/elf32-hppa.c in binutils 2.17.50.=
0.
{10,11} doesnt seem to match the version actually in cvs ??

at any rate, attached patch applies against 2.17.50.0.10 and 2.17.50.0.11 a=
nd=20
fixes the issue for me
=2Dmike

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Content-Transfer-Encoding: quoted-printable
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	filename="binutils-hppa32-bfd-bed.patch"

2007-01-27  Mike Frysinger  <vapier@gentoo.org>

	* elf32-hppa.c [elf32_bed]: Define for hpux, linux, and netbsd.
	[INCLUDED_TARGET_FILE]: Remove.

=2D-- binutils-2.17.50.0.10/bfd/elf32-hppa.c
+++ binutils-2.17.50.0.10/bfd/elf32-hppa.c
@@ -4656,6 +4656,7 @@
 #define ELF_MACHINE_CODE	EM_PARISC
 #define ELF_MAXPAGESIZE		0x1000
 #define ELF_OSABI		ELFOSABI_HPUX
+#define elf32_bed		elf32_hppa_hpux_bed
=20
 #include "elf32-target.h"
=20
@@ -4665,8 +4666,9 @@
 #define TARGET_BIG_NAME			"elf32-hppa-linux"
 #undef ELF_OSABI
 #define ELF_OSABI			ELFOSABI_LINUX
+#undef elf32_bed
+#define elf32_bed		elf32_hppa_linux_bed
=20
=2D#define INCLUDED_TARGET_FILE 1
 #include "elf32-target.h"
=20
 #undef TARGET_BIG_SYM
@@ -4675,5 +4677,7 @@
 #define TARGET_BIG_NAME			"elf32-hppa-netbsd"
 #undef ELF_OSABI
 #define ELF_OSABI			ELFOSABI_NETBSD
+#undef elf32_bed
+#define elf32_bed		elf32_hppa_netbsd_bed
=20
 #include "elf32-target.h"

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Subject: Re: [parisc-linux] binutils-2.17.50.0.10+ hates hppa ?
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> > There's been very few hppa changes to binutils in the past several
> > months.  I can't duplicate the problem, so maybe there's something
> > wrong with your libc setup.
> 
> no, one of the very few changes to the hppa bfd broke things ... it's writi=
> ng=20
> the ELF OS ABI field as HPUX instead of Linux and well, that doesnt go over=
> =20
> very well :)
> 
> here's the weird thing ... looking at bfd/elf32-hppa.c in binutils 2.17.50.=
> 0.
> {10,11} doesnt seem to match the version actually in cvs ??
> 
> at any rate, attached patch applies against 2.17.50.0.10 and 2.17.50.0.11 a=
> nd=20

The problem appears to have been introduced by gentoo by the addition
of several ELF_OSABI defines to the file ;)  I don't think they should
be there.

The new elf_bed defines look ok.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Saturday 27 January 2007 14:19, John David Anglin wrote:
> The problem appears to have been introduced by gentoo by the addition
> of several ELF_OSABI defines to the file ;)  I don't think they should
> be there.

huh ?  that patch was against vanilla binutils release ... in other words, =
i=20
did `tar jxf binutils-2.17.50.0.11.tar.bz2` ... so unless Gentoo has patche=
d=20
tar to screw up elf32-hppa.c, i dont think it's a Gentoo issue
=2Dmike

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On Saturday 27 January 2007 14:38, Mike Frysinger wrote:
> On Saturday 27 January 2007 14:19, John David Anglin wrote:
> > The problem appears to have been introduced by gentoo by the addition
> > of several ELF_OSABI defines to the file ;)  I don't think they should
> > be there.
>
> huh ?  that patch was against vanilla binutils release ... in other words,
> i did `tar jxf binutils-2.17.50.0.11.tar.bz2` ... so unless Gentoo has
> patched tar to screw up elf32-hppa.c, i dont think it's a Gentoo issue

looking through some binutils history, this looks like some fix that HJLu h=
as=20
done (Jan 2007 / PR3826) ... i'll complain to him/binutils list that he's=20
fuckin up my mojo :)
=2Dmike

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Subject: Re: [parisc-linux] binutils-2.17.50.0.10+ hates hppa ?
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> > huh ?  that patch was against vanilla binutils release ... in other words,
> > i did `tar jxf binutils-2.17.50.0.11.tar.bz2` ... so unless Gentoo has
> > patched tar to screw up elf32-hppa.c, i dont think it's a Gentoo issue
> 
> looking through some binutils history, this looks like some fix that HJLu h=
> as=20
> done (Jan 2007 / PR3826) ... i'll complain to him/binutils list that he's
> fuckin up my mojo :)

Just blame HJL.  Personally, I don't see much merit in using
"linux binutils" on hppa.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] binutils-2.17.50.0.10+ hates hppa ?
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On 27/01/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
>
> > > huh ?  that patch was against vanilla binutils release ... in other
> words,
> > > i did `tar jxf binutils-2.17.50.0.11.tar.bz2` ... so unless Gentoo has
> > > patched tar to screw up elf32-hppa.c, i dont think it's a Gentoo issue
> >
> > looking through some binutils history, this looks like some fix that
> HJLu h=
> > as=20
> > done (Jan 2007 / PR3826) ... i'll complain to him/binutils list that
> he's
> > fuckin up my mojo :)
>
> Just blame HJL.  Personally, I don't see much merit in using
> "linux binutils" on hppa.


Except that this is what a number of distros  (Gentoo, Fedora, Ubuntu) are
shipping at the moment.

Tks,
Jeff Bailey

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/

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On 27/01/07, <b class="gmail_sendername">John David Anglin</b> &lt;<a href="mailto:dave@hiauly1.hia.nrc.ca">dave@hiauly1.hia.nrc.ca</a>&gt; wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
&gt; &gt; huh ?&nbsp;&nbsp;that patch was against vanilla binutils release ... in other words,<br>&gt; &gt; i did `tar jxf binutils-2.17.50.0.11.tar.bz2` ... so unless Gentoo has<br>&gt; &gt; patched tar to screw up elf32-hppa.c, i dont think it&#39;s a Gentoo issue
<br>&gt;<br>&gt; looking through some binutils history, this looks like some fix that HJLu h=<br>&gt; as=20<br>&gt; done (Jan 2007 / PR3826) ... i&#39;ll complain to him/binutils list that he&#39;s<br>&gt; fuckin up my mojo :)
<br><br>Just blame HJL.&nbsp;&nbsp;Personally, I don&#39;t see much merit in using<br>&quot;linux binutils&quot; on hppa.</blockquote><div><br>Except that this is what a number of distros&nbsp; (Gentoo, Fedora, Ubuntu) are shipping at the moment.
<br></div><br></div>Tks,<br>Jeff Bailey<br clear="all"><br>-- <br>Jeff Bailey - <a href="http://www.raspberryginger.com/jbailey/">http://www.raspberryginger.com/jbailey/</a>

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Subject: Re: [parisc-linux] binutils-2.17.50.0.10+ hates hppa ?
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> On 1/28/07, Jeff Bailey <jbailey@raspberryginger.com> wrote:
> > Except that this is what a number of distros  (Gentoo, Fedora, Ubuntu) are
> > shipping at the moment.
> 
> John,
> 
> I saw your checkin on binutils, is this fixed for hppa now?
> Many thanks if it is!

Should be but I don't use linux binutils.

Regarding "linux binutils", I note that the current release has
changes to the default section LMA (load memory address).  This
might break EH support on hppa-linux because of the use of pc-relative
offsets in the EH data.  See the release notes for 2.17.50.0.12.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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the statfs header exports some structs to userspace ... the parisc statfs64=
=20
struct currently uses u64 so the trivial attached patch fixes it to use __u=
64
=2Dmike

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	filename="linux-use-__-types-in-parisc-statfs.patch"

Use __u64 rather than u64 in the struct statfs64 exported to userspace.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

--- a/include/asm-parisc/statfs.h
+++ b/include/asm-parisc/statfs.h
@@ -30,11 +30,11 @@ struct statfs {
 struct statfs64 {
 	long f_type;
 	long f_bsize;
-	u64 f_blocks;
-	u64 f_bfree;
-	u64 f_bavail;
-	u64 f_files;
-	u64 f_ffree;
+	__u64 f_blocks;
+	__u64 f_bfree;
+	__u64 f_bavail;
+	__u64 f_files;
+	__u64 f_ffree;
 	__kernel_fsid_t f_fsid;
 	long f_namelen;
 	long f_frsize;

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From: Guy Martin <gmsoft@gentoo.org>
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Subject: [parisc-linux] [patch] GCC generates incorrect mfctl instruction
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Hi all,

This patch removes the ,w completer of the mfctl instruction when not used with cr11.
Only cr11 needs the ,w completer on PA2.0.

Reference : http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,959!114!244,00.html

Please review.

  Guy

-- 
Guy Martin
Gentoo Linux - HPPA port Lead


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Do not use ,w completer for register != cr11.

Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>

diff -uNr gcc-4.1.1.orig/gcc/config/pa/pa.md gcc-4.1.1/gcc/config/pa/pa.md
--- gcc-4.1.1.orig/gcc/config/pa/pa.md	2007-01-30 06:59:07.579391048 +0000
+++ gcc-4.1.1/gcc/config/pa/pa.md	2007-01-30 07:23:29.213188936 +0000
@@ -9854,7 +9854,7 @@
   [(set (match_operand:SI 0 "register_operand" "=r")
 	(unspec:SI [(const_int 0)] UNSPEC_TP))]
   ""
-  "{mfctl|mfctl,w} %%cr27,%0"
+  "mfctl %%cr27,%0"
   [(set_attr "type" "multi")
    (set_attr "length" "4")])
 

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Subject: Re: [parisc-linux] [patch] GCC generates incorrect mfctl instruction
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> This patch removes the ,w completer of the mfctl instruction when not used with cr11.
> Only cr11 needs the ,w completer on PA2.0.

Thanks, I'll install the change.  It might not get into 4.1.2 as
the 4.1 branch is currently frozen for release.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: [patch] use __u64 rather than u64 in parisc
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On Sun, Jan 28, 2007 at 06:48:26PM -0500, Mike Frysinger wrote:
> the statfs header exports some structs to userspace ... the parisc statfs64 
> struct currently uses u64 so the trivial attached patch fixes it to use __u64
> -mike

ack'd and merged. can you please not attach patches but properly send them
inline so i don't have to edit them before applying them to my tree?
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Hi all,

Reference : http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,959!114!244,00.html

According this doc, the ,w completer of the mfctl instruction is only used for the cr11 register. This is the way binutils handle it.
However, gcc will generate the following instruction "mfctl,w %%cr27,%0" while compiling glibc-2.5 on pa2.0.

This little patch fix this :

diff -uNr gcc-4.1.1.orig/gcc/config/pa/pa.md gcc-4.1.1/gcc/config/pa/pa.md
--- gcc-4.1.1.orig/gcc/config/pa/pa.md  2007-01-30 06:59:07.579391048 +0000
+++ gcc-4.1.1/gcc/config/pa/pa.md       2007-01-30 07:23:29.213188936 +0000
@@ -9854,7 +9854,7 @@
   [(set (match_operand:SI 0 "register_operand" "=r")
        (unspec:SI [(const_int 0)] UNSPEC_TP))]
   ""
-  "{mfctl|mfctl,w} %%cr27,%0"
+  "mfctl %%cr27,%0"
   [(set_attr "type" "multi")
    (set_attr "length" "4")])


Please review.


Regards,
  Guy


-- 
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Gentoo Linux - HPPA port Lead

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Hi all,

I am trying to build glibc 2.5 with a CVS version of binutils
(2.17.20070103) in order to enable thread local storage support.

I get an error on an assembly file:
../ports/sysdeps/hppa/dl-trampoline.S: Assembler messages:
../ports/sysdeps/hppa/dl-trampoline.S:287: Error: open CFI at the end of
file; missing .cfi_endproc directive

Does anybody know how to fix that?

Thanks,
Aurlien

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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Aurelien,

The trivial attached patch fix this issue.

Glibc hackers, please commit.

  Guy

On Fri, 02 Feb 2007 19:05:21 +0100
Aurelien Jarno <aurelien@aurel32.net> wrote:

> Hi all,
>=20
> I am trying to build glibc 2.5 with a CVS version of binutils
> (2.17.20070103) in order to enable thread local storage support.
>=20
> I get an error on an assembly file:
> ../ports/sysdeps/hppa/dl-trampoline.S: Assembler messages:
> ../ports/sysdeps/hppa/dl-trampoline.S:287: Error: open CFI at the end of
> file; missing .cfi_endproc directive
>=20
> Does anybody know how to fix that?
>=20
> Thanks,
> Aur=E9lien

--=20
Guy Martin
Gentoo Linux - HPPA port Lead

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Add missing cfi_procend.

Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>

diff -uNr glibc-2.5.orig/ports/sysdeps/hppa/dl-trampoline.S glibc-2.5/ports/sysdeps/hppa/dl-trampoline.S
--- glibc-2.5.orig/ports/sysdeps/hppa/dl-trampoline.S	2006-09-07 16:34:43.000000000 +0000
+++ glibc-2.5/ports/sysdeps/hppa/dl-trampoline.S	2007-01-30 15:15:58.000000000 +0000
@@ -284,5 +284,6 @@
 	bv,n	0(%r2)
         .EXIT
         .PROCEND
+	cfi_endproc
 	.size   _dl_runtime_profile, . - _dl_runtime_profile
 

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From: Mike Frysinger <vapier@gentoo.org>
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Subject: [parisc-linux] input constraints in atomic.h too loose ?
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while building glibc-2.5/cvs with gcc-4.1.1, i hit an error about invalid=20
operands in the locking code ... looks like the declared constraints for th=
e=20
inputs in atomic.h are too loose ?

$ hppa2.0-unknown-linux-gnu-gcc -O1 -fPIC vfprintf.i -c
/tmp/ccvCRbqg.s: Assembler messages:
/tmp/ccvCRbqg.s:41: Error: bad expression
/tmp/ccvCRbqg.s:41: Error: bad expression
/tmp/ccvCRbqg.s:41: Error: bad expression
/tmp/ccvCRbqg.s:41: Error: bad expression
/tmp/ccvCRbqg.s:41: Error: bad expression
/tmp/ccvCRbqg.s:41: Error: bad expression
/tmp/ccvCRbqg.s:41: Error: Invalid operands=20
/tmp/ccvCRbqg.s:43: Error: bad expression
/tmp/ccvCRbqg.s:43: Error: bad expression
/tmp/ccvCRbqg.s:43: Error: bad expression
/tmp/ccvCRbqg.s:43: Error: bad expression
/tmp/ccvCRbqg.s:43: Error: bad expression
/tmp/ccvCRbqg.s:43: Error: bad expression
/tmp/ccvCRbqg.s:43: Error: Invalid operands=20
=2Dmike

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static void __lll_mutex_lock(int *futex)
{
	int lws_errno = 14; 
	int lws_ret;
	asm (
"0:					\n\t" 
"copy	%3, %%r26			\n\t" 
"copy	%4, %%r25			\n\t" 
"copy	%5, %%r24			\n\t" 
"ble	" "0xb0" "(%%sr2, %%r0)		\n\t" 
"ldi	" "0" ", %%r20		\n\t" 
"cmpib,=,n " "11" ",%%r21,0b	\n\t" 
"nop					\n\t" 
"stw	%%r28, %0			\n\t" 
"sub	%%r0, %%r21, %%r21		\n\t" 
"stw	%%r21, %1			\n\t"
: "=m" (lws_ret), "=m"(lws_errno), "=m"(*futex)
: "r"(futex), "r"(0), "r"(1)
:"r1", "r26", "r25", "r24", "r23", "r22", "r21", "r20", "r28", "r31", "memory"
);
}
typedef struct {
	char *_IO_write_end;
	int lock;
} _IO_FILE;
__attribute__ ((__nothrow__)) __attribute__ ((noinline))
static int buffered_vfprintf(_IO_FILE *s)
{
	char buf[8192];
	_IO_FILE *hp;
	hp->_IO_write_end = buf;
	__lll_mutex_lock(&s->lock);
}
void foo(_IO_FILE *s)
{
	buffered_vfprintf(s);
}

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	.LEVEL 1.1
	.text
	.align 4
	.type	buffered_vfprintf, @function
buffered_vfprintf:
	.PROC
	.CALLINFO FRAME=8320,CALLS,SAVE_RP,ENTRY_GR=7
	.ENTRY
	stw %r2,-20(%r30)
	addil L'8320,%r30
	ldo R'8320(%r1),%r30
	stw %r8,-112(%r30)
	stw %r7,-108(%r30)
	stw %r6,-104(%r30)
	stw %r5,-100(%r30)
	stw %r4,-96(%r30)
	stw %r19,-32(%r30)
	copy %r26,%r8
	ldil L'-16384,%r28
	ldo 8072(%r28),%r28
	addl %r30,%r28,%r6
	stw %r6,0(%r28)
	ldo 4(%r26),%r5
	ldil L'8192,%r7
	addl %r6,%r7,%r20
	ldi 14,%r28
	stw %r28,0(%r20)
	ldi 0,%r2
	ldi 1,%r29
	ldil L'16384,%r4
	ldo -8188(%r4),%r4
#APP
	0:					
	copy	%r5, %r26			
	copy	%r2, %r25			
	copy	%r29, %r24			
	ble	0xb0(%sr2, %r0)		
	ldi	0, %r20		
	cmpib,=,n 11,%r21,0b	
	nop					
	stw	%r28, %r6(%r4)			
	sub	%r0, %r21, %r21		
	stw	%r21, %r6(%r7)			
	
#NO_APP
	ldw -112(%r30),%r8
	ldw -108(%r30),%r7
	ldw -104(%r30),%r6
	ldw -100(%r30),%r5
	ldw -96(%r30),%r4
	addil L'-8320,%r30
	ldo R'-8320(%r1),%r30
	ldw -20(%r30),%r2
	bv,n %r0(%r2)
	.EXIT
	.PROCEND
	.size	buffered_vfprintf, .-buffered_vfprintf
	.align 4
.globl foo
	.type	foo, @function
foo:
	.PROC
	.CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=3
	.ENTRY
	stw %r2,-20(%r30)
	stwm %r4,64(%r30)
	bl buffered_vfprintf,%r2
	stw %r19,-32(%r30)
	ldw -84(%r30),%r2
	bv %r0(%r2)
	ldwm -64(%r30),%r4
	.EXIT
	.PROCEND
	.size	foo, .-foo
	.ident	"GCC: (GNU) 4.1.1 (Gentoo 4.1.1-r3)"

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Hi all,

I recently tried the latest git as of today and it broke badly my K410.
The last kernel I tried was 2.6.20-rc6. Git version again but this one was working fine (in UP, SMP was more badly broken than 2.6.19.1-pa0)
It corrupted the stable storage in a way that the HWversion value differs from the expected value and fails.

In my first try of booting this kernel it also corrupted the stable storage but it still reached the pdc console and I could recover it by going in COnfiguration -> DEfault. It was not possible to set any path anymore using pa pri 10/0.1 nor read any path before using this command.

Do you know a way to recover from this ?


This is the last boot attempt. For this one I disabled all CPU but the first one and palo had the nosmp option set anyway.


PALO(F0) partition contains:                                                                                                                                                                                        
    0/vmlinux32 4748163 bytes @ 0x48000                                                                                                                                                                             
                                                                                                                                                                                                                    
Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=/dev/md0 nosmp console=ttyB0 palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
ELF32 executable
Entry 00100500 first 00100000 n 3
Segment 0 load 00100000 size 3425668 mediaptr 0x1000
Segment 1 load 00445000 size 376832 mediaptr 0x346000
Segment 2 load 00500000 size 289928 mediaptr 0x3a2000
Branching to kernel entry point 0x00100500.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org
                                                                                                                                                                                                                    
[4294667.296000] Linux version 2.6.20-rc7 (root@fridge) (gcc version 4.1.1 (Gentoo 4.1.1-r3)) #5 SMP Sat Feb 3 16:30:11 CET 2007
[4294667.296000] FP[0] enabled: Rev 1 Model 11
[4294667.296000] The 32-bit Kernel has started...
[4294667.296000] Initialized PDC Console for debugging.
[4294667.296000] Determining PDC firmware type: System Map.
[4294667.296000] model f0190000 00000491 00000000 00000002 00000000 100000f1 00000004 0000008a 0000008a
[4294667.296000] vers  0000000d
[4294667.296000] CPUID vers 11 rev 13 (0x0000016d)
[4294667.296000] model 9000/800 Series HPUX HPUX HPUX.
[4294667.296000] ------------[ cut here ]------------
[4294667.296000] kernel BUG at arch/parisc/kernel/cache.c:232!
[4294667.296000]
[4294667.296000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[4294667.296000] PSW: 00000000000001000000000000001111 Not tainted
[4294667.296000] r00-03  0004000f 1046d010 10510c70 00800327
[4294667.296000] r04-07  10500088 0009b404 10504000 000000f2
[4294667.296000] r08-11  000000f3 000000f0 0004000e 1050d128
[4294667.296000] r12-15  0000004d 0000004d 00000003 f0000bf8
[4294667.296000] r16-19  f0001570 f0000074 f000006c 00000000
[4294667.296000] r20-23  00000000 00000010 fffffff8 00000000
[4294667.296000] r24-27  004a6a48 0000000f 00000002 1046f010
[4294667.296000] r28-31  101076d4 10482010 10500240 004a6cb8
[4294667.296000] sr00-03  00000000 00000000 00000000 00000000
[4294667.296000] sr04-07  00000000 00000000 00000000 00000000
[4294667.296000]
[4294667.296000] IASQ: 00000000 00000000 IAOQ: 101076d4 101076d8
[4294667.296000]  IIR: 03ffe01f    ISR: 00000000  IOR: 004a6cb8
[4294667.296000]  CPU:        0   CR30: 10500000 CR31: 10504000
[4294667.296000]  ORIG_R28: 00000000
[4294667.296000]  IAOQ[0]: disable_sr_hashing+0x48/0xa4
[4294667.296000]  IAOQ[1]: disable_sr_hashing+0x4c/0xa4
[4294667.296000]  RP(r2): paging_init+0x48/0x750
[4294667.296000] Backtrace:
[4294667.296000]  [<10108db8>] die_if_kernel+0x130/0x198
[4294667.296000]  [<1024e21c>] report_bug+0xa0/0xb4
[4294667.296000]  [<1010902c>] handle_interruption+0x20c/0x60c
[4294667.296000]  [<1010f604>] real32_call+0x110/0x11c
[4294667.296000]  [<1010f604>] real32_call+0x110/0x11c
[4294667.296000]  [<1010f918>] pdc_iodc_putc+0x104/0x130
[4294667.296000]  [<1010d090>] intr_check_sig+0x0/0x34
[4294667.296000]  [<10113e70>] pdc_console_write+0x20/0x38
[4294667.296000]  [<101076d8>] disable_sr_hashing+0x4c/0xa4
[4294667.296000]  [<1010f604>] real32_call+0x110/0x11c
[4294667.296000]  [<101a30b4>] seq_lseek+0x0/0x2f8
[4294667.296000]  [<103a9558>] xfrm6_beet_output+0x0/0x100
[4294667.296000]  [<103a5f64>] ip6_fl_gc+0x0/0x1a8
[4294667.296000]  [<101382e0>] proc_dointvec_jiffies+0x0/0x38
[4294667.296000]  [<103a249c>] ipv6_nodata_rcv+0x0/0x20
[4294667.296000]  [<103a1424>] tcp_v6_rcv+0x0/0xab4
[4294667.296000]
[4294667.296000] Kernel panic - not syncing: Attempted to kill the idle task!
[4294667.296000]       


The chassis code when I try to boot now :

FLT    301A      REMOTE:  disabled   inactive   multiple      ACCESS FAULT: 00
CM> sl
                         ----- Front Panel displays -----

FLT  301A        INIT C30C        TEST 8120        INIT 10CA        INIT 10CA
INIT 1033        TEST 1033        INIT 10CA        INIT 10CA        INIT C30C
TEST 400E        INIT 103C        TEST 4060        TEST 4040        TEST 4030
TEST 4020        TEST 4010        TEST 4000        INIT 10CA        INIT C30C
TEST C2E0        TEST C265        TEST C264        TEST C262        TEST C261
TEST C260        TEST C240        TEST 000F        TEST 000E        TEST 000D
TEST 000C        TEST 000B        TEST 000A        TEST 0009        TEST 0008
TEST 0007        TEST 0006        TEST 0005        TEST 0004        TEST 0003
TEST 0002        INIT CD70        TEST CD70        INIT CD21        TEST CD21
INIT CD20        TEST CD20        TEST CD1A        TEST CD1B        TEST CD1C



-- 
Guy Martin
Gentoo Linux - HPPA port Lead
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On 2/8/2007 12:38 PM, Matthew Wilcox wrote:
> Could you post the patch to sd.c here?  I, and others, can look it over,
> critique it, and help polish it before you submit it to the linux-scsi
> list.  Or if you're brave, you could send it straight to linux-scsi
> (there's about 3 of us who're on both lists, so you may well see feedback
> from a familiar name anyway).

Sure.  I'm working on this for a project that is running Sarge with the 2.6.8
kernel, so I'll need to migrate the changes over to the latest sd.c from the
parisc-2.6 tree, then clean it up a bit.  I'll post a patch as soon as its ready
for general consumption.

> Without looking at the source code to check, I suspect the fdformat code
> is trying ioctls that are implemented in floppy.c and we might want to
> emulate them in sd.c if the device is a floppy.

I haven't looked at the fdformat code either, but it aborts early due to the
scsi floppy device having the wrong major number.  I don't think it even gets to
any ioctls.  BTW, the mtools functions all appear to work.





















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On Thu, Feb 08, 2007 at 03:08:55PM -0500, James K. Love wrote:
> I haven't looked at the fdformat code either, but it aborts early due to the
> scsi floppy device having the wrong major number.  I don't think it even 
> gets to
> any ioctls.  BTW, the mtools functions all appear to work.

Oh ... I guess we just need to fix fdformat then.  Thanks.
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Xref: news.gmane.org gmane.linux.ports.parisc:24281

On Mon, Feb 05, 2007 at 10:13:01PM -0500, Carlos O'Donell wrote:
> make[2]: *** [/libc-tls-nptl/io/tst-fstatat.out] Error 1
> make[2]: *** [/libc-tls-nptl/io/tst-futimesat.out] Error 1
> make[2]: *** [/libc-tls-nptl/io/tst-renameat.out] Error 1
> make[2]: *** [/libc-tls-nptl/io/tst-fchmodat.out] Error 1
> make[2]: *** [/libc-tls-nptl/io/tst-symlinkat.out] Error 1
> make[2]: *** [/libc-tls-nptl/io/tst-linkat.out] Error 1
> make[2]: *** [/libc-tls-nptl/io/tst-mkdirat.out] Error 1
> make[2]: *** [/libc-tls-nptl/io/tst-mkfifoat.out] Error 1

I guess we need to hook up the *at syscalls.

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On Thu, Feb 08, 2007 at 07:33:02PM -0500, Kyle McMartin wrote:
> On Tue, Feb 06, 2007 at 05:20:18PM -0500, Carlos O'Donell wrote:
> > Run this test:
> > http://www.parisc-linux.org/~carlos/tst-sigqueue.c
> > 
> > On a 32-bit userspace, with a 64-bit 2.6.18 kernel and the test exits with 
> > 0.
> > 
> > carlos@firin:~$ ./tst-sigqueue
> > in f
> > pid = 1429
> > new thread: 1429
> > carlos@firin:~$ echo $?
> > 0
> > 
> > Run it with a 64-bit 2.6.20 kernel and you get an error.
> > 
> > carlos@firin:~$ ./tst-sigqueue
> > in f
> > pid = 31148
> > new thread: 31148
> > expected PID 31148, got si_pid 1000
> > carlos@firin:~$ echo $?
> > 1
> > 
> 
> Right. This got inadvertantly reverted with some other stuff. Fixed in a
> second.

Fixed in 1736b4bbf2bbfebaad06114d569f3617517524d1.
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On Mon, 5 Feb 2007 22:13:01 -0500
"Carlos O'Donell" <carlos@systemhalted.org> wrote:

> This is my official baseline as of 2007-02-05.
> 
> To get the baseline you need to apply something like this patch:
> http://www.parisc-linux.org/~carlos/libc-head-2007-02-05.diff
> 
> Anything non-generic is already in libc ports for hppa.
> 
> I'm interested in hearing if the gentoo or ubuntu people can reproduce
> this baseline.
> In theory this baseline is good enough for a "beta" quality userspace.
> I think we are out of "alpha" quality.
> 
> Cheers,
> Carlos.


Carlos,

This is the result of the patchset I've created :

make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/math/test-float.out] Error 1
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/math/test-double.out] Error 1
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/math/test-ifloat.out] Error 1
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/math/test-idouble.out] Error 1
make[1]: *** [math/tests] Error 2
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/libio/tst-memstream2.out] Error 1
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/libio/tst-wmemstream2.out] Error 1
make[1]: *** [libio/tests] Error 2
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/string/tst-strxfrm2.out] Error 1
make[1]: *** [string/tests] Error 2
make[2]: [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/posix/annexc.out] Error 1 (ignored)
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/nptl/tst-cancelx4.out] Error 1
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/nptl/tst-cancelx5.out] Error 1
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/nptl/tst-cancelx20.out] Error 1
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/nptl/tst-cancelx21.out] Error 1
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/nptl/tst-cleanupx4.out] Error 1
make[1]: *** [nptl/tests] Error 2
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/rt/tst-timer4.out] Error 1
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/rt/tst-timer5.out] Error 1
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/rt/tst-cputimer1.out] Error 1
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/rt/tst-cputimer2.out] Error 1
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/rt/tst-cputimer3.out] Error 1
make[1]: *** [rt/tests] Error 2
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/elf/tst-pie1.out] Error 139
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/elf/tst-audit2.out] Error 139
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/elf/tst-addr1.out] Error 1
make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/elf/check-textrel.out] Error 1
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

I used those patches :

7001_hppa_local-inlining.patch : from debian's deb
7002_hppa_submitted-lt.patch : idem
7003_hppa_ports-cvs-head-20070129.patch : cvs head of the ports repo on the 20070129
7005_hppa_cvs-head-20061203.patch : cvs head as of 20061203 of the libcd repo. This is the time of the last hppa commit to ports
7006_hppa_ports-cvs-head-20070205.patch : your patch mentionned in your previous email
7007_hppa_various-fixes.patch : cfi_endproc fix + 2 small include fix


We have always had the floating point errors even on previous glibc.

The memstream tests fail with this error "Timed out: killed the child process"

The cancel tests fail with message similar to this :
cleanup handler not called for 'pause'

tst-timer4.out :
clock_gettime returned timespec = { 1170787417, 996313000 }
clock_getres returned timespec = { 0, 4000250 }

tst-addr1.out :
found symbol (null) in /var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/elf/tst-addr1

check-textrel.out :
/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/libc.so: segment 3 is executable and writable


Cheers,
  Guy


-- 
Guy Martin
Gentoo Linux - HPPA port lead

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Xref: news.gmane.org gmane.linux.ports.parisc:24284

On Tue, 6 Feb 2007 16:58:05 -0500
"Carlos O'Donell" <carlos@systemhalted.org> wrote:

> On 2/6/07, Guy Martin <gmsoft@gentoo.org> wrote:
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/math/test-float.out] Error 1
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/math/test-double.out] Error 1
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/math/test-ifloat.out] Error 1
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/math/test-idouble.out] Error 1
> > make[1]: *** [math/tests] Error 2
> 
> Compiler too old. You need a compiler with the quiet NaN fixes that
> Joel Soete and John David Anglin fixed.

The NaN fix was applied. The bug changed this way after aplying it :

hake patches # less /var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/math/test-float.out
testing float (without inline functions)
Failure: Test: erfc (0.75) == 0.288844366346484868401062165408589223
Result:
 is:          2.88844347000122070312e-01   0x1.27c6d000000000000000p-2
 should be:   2.88844376802444458008e-01   0x1.27c6d200000000000000p-2
 difference:  2.98023223876953125000e-08   0x1.00000000000000000000p-25
 ulp       :  1.0000
 max.ulp   :  0.0000
Maximal error of `erfc'
 is      : 1 ulp
 accepted: 0 ulp
Failure: Test: Real part of: cpow (2 + 3 i, 4 + 0 i) == -119.0 - 120.0 i
Result:
 is:         -1.18999961853027343750e+02  -0x1.dbfff600000000000000p+6
 should be:  -1.19000000000000000000e+02  -0x1.dc000000000000000000p+6
 difference:  3.81469726562500000000e-05   0x1.40000000000000000000p-15
 ulp       :  5.0000
 max.ulp   :  4.0000
Maximal error of real part of: cpow
 is      : 5 ulp
 accepted: 4 ulp
Maximal error of imaginary part of: cpow
 is      : 2 ulp
 accepted: 2 ulp

Test suite completed:
  2917 test cases plus 2564 tests for exception flags executed.
  4 errors occurred.

> 
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/libio/tst-memstream2.out] Error 1
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/libio/tst-wmemstream2.out] Error 1
> > make[1]: *** [libio/tests] Error 2
> 
> export TIMEOUTFACTOR=30
> 
>
> You must increase the timeouts for all testsuite runs.
> 

2 down :)


> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/string/tst-strxfrm2.out] Error 1
> > make[1]: *** [string/tests] Error 2
> 
> Unknown.

This is the result of the test :
hake patches # cat /var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/string/tst-strxfrm2.out
setlocale failed

  if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL)
      puts ("setlocale failed");
This locale is not installed. It's not likely to work :)


> Watch out there is a compiler bug I ran into with vfprintf. I have a
> patch to disable delayed branch reorganization when compiling
> vfprintf.c from stdio.

Where is this patch ? :)

> 
> > make[2]: [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/posix/annexc.out] Error 1 (ignored)
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/nptl/tst-cancelx4.out] Error 1
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/nptl/tst-cancelx5.out] Error 1
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/nptl/tst-cancelx20.out] Error 1
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/nptl/tst-cancelx21.out] Error 1
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/nptl/tst-cleanupx4.out] Error 1
> > make[1]: *** [nptl/tests] Error 2
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/rt/tst-timer4.out] Error 1
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/rt/tst-timer5.out] Error 1
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/rt/tst-cputimer1.out] Error 1
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/rt/tst-cputimer2.out] Error 1
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/rt/tst-cputimer3.out] Error 1
> > make[1]: *** [rt/tests] Error 2
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/elf/tst-pie1.out] Error 139
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/elf/tst-audit2.out] Error 139
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/elf/tst-addr1.out] Error 1
> > make[2]: *** [/var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/elf/check-textrel.out] Error 1
> > make[1]: *** [elf/tests] Error 2
> > make: *** [check] Error 2
> 
> This looks great!
> 
> > I used those patches :
> >
> > 7001_hppa_local-inlining.patch : from debian's deb
> > 7002_hppa_submitted-lt.patch : idem
> > 7003_hppa_ports-cvs-head-20070129.patch : cvs head of the ports repo on the 20070129
> > 7005_hppa_cvs-head-20061203.patch : cvs head as of 20061203 of the libcd repo. This is the time of the last hppa commit to ports
> > 7006_hppa_ports-cvs-head-20070205.patch : your patch mentionned in your previous email
> > 7007_hppa_various-fixes.patch : cfi_endproc fix + 2 small include fix
> 
> > The cancel tests fail with message similar to this :
> > cleanup handler not called for 'pause'
> 
> This is in coordination with the compiler. I haven't determined why
> they don't work.
> 
> > tst-timer4.out :
> > clock_gettime returned timespec = { 1170787417, 996313000 }
> > clock_getres returned timespec = { 0, 4000250 }
> 
> Unknown.
> 
> > tst-addr1.out :
> > found symbol (null) in /var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/elf/tst-addr1
> 
> Unknown. But likely binutils related.
>

I used this binutils :
GNU ld version 2.17.50.0.9 20070103

I'll try a newer version but got not much hope.

> > check-textrel.out :
> > /var/tmp/portage/glibc-2.5/work/build-default-hppa2.0-unknown-linux-gnu-nptl/libc.so: segment 3 is executable and writable
> 
> We don't support RO text yet.
>

One less test to worry about :)
 
>
> Thanks for quick turnaround!
> 
> With this new glibc are you able to get a usable userspace in gentoo?
> Cancellation might break C++ applications...


So far so good, python and openldap test suite wich failed in odd ways wrt thread stuff now works fine :)

This is still only in a chroot, we'll put that in portage soon for testing.


Cheers,
  Guy


-- 
Guy Martin
Gentoo Linux - HPPA port lead

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On Tue, 6 Feb 2007 17:46:43 -0500
"Carlos O'Donell" <carlos@systemhalted.org> wrote:

> > > Watch out there is a compiler bug I ran into with vfprintf. I have a
> > > patch to disable delayed branch reorganization when compiling
> > > vfprintf.c from stdio.
> >
> > Where is this patch ? :)
> 
> It is part of this patch:
> http://www.parisc-linux.org/~carlos/libc-head-2007-02-05.diff
> -CFLAGS-vfprintf.c = -Wno-uninitialized
> +CFLAGS-vfprintf.c = -Wno-uninitialized -fno-delayed-branch

Ok then it was applied already.

> 
> > I used this binutils :
> > GNU ld version 2.17.50.0.9 20070103
> > I'll try a newer version but got not much hope.
> 
> I didn't say it's fixed in a newer binutils. I meant to say that we
> likely need to fix binutils :-)

I somehow expected that :)

> > So far so good, python and openldap test suite wich failed in odd ways wrt thread stuff now works fine :)
> > This is still only in a chroot, we'll put that in portage soon for testing.
> 
> Excellent! What kernel are you using?

Linux hake 2.6.19.2 #2 Thu Feb 1 19:58:15 EST 2007 parisc PA8600 (PCX-W+) GNU/Linux


Let me know if you have some patch/update for glibc which needs testing.


Cheers,
  Guy


-- 
Guy Martin
Gentoo Linux - HPPA port lead

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I have my old J5600 recompiled and running with 2.6.19.1 kernel. I put 
an old Voodoo3 2000 rev 1 in the secondary pci slot and it is recognized 
by the system (not compiled in the kernel just lspci).  Is there any 
trick to getting it to work with linux in the J5600 before I waste time 
trying?

Mike

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On Wed, Feb 07, 2007 at 04:21:56PM -0500, Michael Greene wrote:
> I have my old J5600 recompiled and running with 2.6.19.1 kernel. I put 
> an old Voodoo3 2000 rev 1 in the secondary pci slot and it is recognized 
> by the system (not compiled in the kernel just lspci).  Is there any 
> trick to getting it to work with linux in the J5600 before I waste time 
> trying?
> 

I haven't the foggiest clue why you thought debian-glibc would care...

It should be a simple matter of turning on the 3dfx voodoo framebuffer
driver and console on framebuffer support. Point X to use fbdev, instead
of tdfx, which will likely fail spectacularly. Use fbset to change
the framebuffer parameters and make sure your X.org conf matches.

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On 07/02/07, Michael Greene <listsnews@cox.net> wrote:
>
> I have my old J5600 recompiled and running with 2.6.19.1 kernel. I put
> an old Voodoo3 2000 rev 1 in the secondary pci slot and it is recognized
> by the system (not compiled in the kernel just lspci).  Is there any
> trick to getting it to work with linux in the J5600 before I waste time
> trying?


At one time I was trying to use a Voodoo3 3000 in a C3000, but I was
unsuccessful (linux fb wouldn't initialise/turn on the display, and
the native XFree86 driver would crash the machine).
That was about 2 years ago I think, and some things have changed since
then ... you might even be successful today. Just try and find out :-)

   Max

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On 07/02/07, <b class="gmail_sendername">Michael Greene</b> &lt;<a href="mailto:listsnews@cox.net">listsnews@cox.net</a>&gt; wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I have my old J5600 recompiled and running with <a href="http://2.6.19.1">2.6.19.1</a> kernel. I put<br>an old Voodoo3 2000 rev 1 in the secondary pci slot and it is recognized<br>by the system (not compiled in the kernel just lspci).&nbsp;&nbsp;Is there any
<br>trick to getting it to work with linux in the J5600 before I waste time<br>trying?</blockquote><div><br>At one time I was trying to use a Voodoo3 3000 in a C3000, but I was<br>unsuccessful (linux fb wouldn&#39;t initialise/turn on the display, and
<br>the native XFree86 driver would crash the machine).<br>That was about 2 years ago I think, and some things have changed since<br>then ... you might even be successful today. Just try and find out :-)<br><br>&nbsp;&nbsp; Max<br>
</div></div>

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Hi all,

I spent the last week-end trying to get the Debian glibc 2.5 package
built with linuxthreads and TLS support on HPPA. And it was successfull!
The packages should be available in the experimental repository when the
HPPA autobuilder have built it (my build was a bit hackish).

FYI, I used binutils 2.17 CVS 20070103 and 4.2.0 CVS 20070105.

To make the glibc buildable I had to use the following patch from Carlos
O'Donell:
http://svn.debian.org/wsvn/pkg-glibc/glibc-package/branches/glibc-2.5/debian/patches/hppa/submitted-lt.diff?op=file&rev=0&sc=0

This patch is already very old, but has still not be committed to the
CVS. Is it something wanted, or has it only been forgotten?

Also what is the current status of NPTL on HPPA. Last time I tried it
was building but they were some failures in the testsuite. I am
currently building a test version here. Is it something stable enough
that it can be used "in production"? I have seen Gentoo has made the
switch...

Bye,
Aurelien

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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Subject: Re: [parisc-linux] glibc 2.5 & TLS linuxthreads (+ NPTL status)
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On Mon, 05 Feb 2007 22:25:35 +0100
Aurelien Jarno <aurelien@aurel32.net> wrote:

> Also what is the current status of NPTL on HPPA. Last time I tried it
> was building but they were some failures in the testsuite. I am
> currently building a test version here. Is it something stable enough
> that it can be used "in production"? I have seen Gentoo has made the
> switch...

Nope, not yet, our test with glibc-2.5 resulted in segfault with all threaded stuff.

I hope you'll have more success :)

> 
> Bye,
> Aurelien

-- 
Guy Martin
Gentoo Linux - HPPA port Lead

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Subject: Re: [parisc-linux] Floppy disk support for 9000 series (715, 755,
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On 1/17/2007 2:16 PM, Matt Taggart wrote:
> "James Love" writes...
>> They use a HP-proprietary TEAC SCSI floppy disk, which appears to be an
>> IDE drive with a SCSI-IO/FDC board piggy-backed on it. Any idea whether
>> the TEAC drive is the one that HP won't provide the documents for?
>
> I hope you are able to make progress on a driver, that would be cool. But I
> don't think anyone from HP is going to be able to help. :(
>
>> Regardless, the drive works in MKLinux, so hopefully someone knows
>> something about how it works...
>
> Yeah it sounds like there is hope of getting it working then.
>

On 1/24/2007 11:28 AM, Grant Grundler wrote:
> On Tue, Jan 23, 2007 at 03:51:32PM -0500, James K. Love wrote:
>> In an attempt investigate further, I installed MKLinux on a 715, and the
>> scsi floppy drive was supported through some combination of the MACH
>> kernel and it's hosted Linux kernel.  I've looked through the MKLinux
>> source code, and it appears that the MACH scsi driver had some support
>> for flexible disk drives (which I assume is the floppy drive), but I'm
>> uncertain if this is the only missing piece to the puzzle.  If anyone
>> has any additional info/insight, I'd really appreciated it.
> 
> If you can figure out what's missing between linux and MKlinux there
> is a good change it could get added. The closer you get to providing
> a patch, the more likely it will get included.
> 

I finally figured some of this out.  I ported the MACH flexible scsi disk
code over to the 2.6 kernel, and I can now mount/read/write with my HP TEAC FC-1
drive.  The modifications I made were inside the scsi device (sd) driver, which
is similar to where they were inside the MACH kernel.  This is obviously not
ideal, since the device major is for a scsi disk, but the drive is really a
floppy.  This breaks some user-space floppy apps like fdformat.  There really
should be a new floppy driver similar to the cdrom driver, but these changes may
not work with any other scsi floppy drive (are there any others?).  I only have
a few HP OEM TEAC revs to test with here.

Bottom line... The scsi disk driver could be patched, but it may only provide
partial/experimental support for this drive without extensive changes.  I'm
traditionally a user-space developer, so I'd appreciate any advice/thoughts
before I get knee deep.  Also, if someone could pass along a few links to some
procedural docs about properly submitting kernel code/patches, I'd really
appreciate it.

Thanks,
James L.






















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Subject: Re: [parisc-linux] Floppy disk support for 9000 series (715, 755,
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On Thu, Feb 08, 2007 at 12:23:41PM -0500, James K. Love wrote:
> I finally figured some of this out.  I ported the MACH flexible scsi disk
> code over to the 2.6 kernel, and I can now mount/read/write with my HP TEAC 
> FC-1
> drive.  The modifications I made were inside the scsi device (sd) driver, 
> which
> is similar to where they were inside the MACH kernel.  This is obviously not
> ideal, since the device major is for a scsi disk, but the drive is really a
> floppy.  This breaks some user-space floppy apps like fdformat.  There 
> really
> should be a new floppy driver similar to the cdrom driver, but these 
> changes may
> not work with any other scsi floppy drive (are there any others?).  I only 
> have
> a few HP OEM TEAC revs to test with here.
> 
> Bottom line... The scsi disk driver could be patched, but it may only 
> provide
> partial/experimental support for this drive without extensive changes.  I'm
> traditionally a user-space developer, so I'd appreciate any advice/thoughts
> before I get knee deep.  Also, if someone could pass along a few links to 
> some
> procedural docs about properly submitting kernel code/patches, I'd really
> appreciate it.

That's good work!

Could you post the patch to sd.c here?  I, and others, can look it over,
critique it, and help polish it before you submit it to the linux-scsi
list.  Or if you're brave, you could send it straight to linux-scsi
(there's about 3 of us who're on both lists, so you may well see feedback
>from a familiar name anyway).

Without looking at the source code to check, I suspect the fdformat code
is trying ioctls that are implemented in floppy.c and we might want to
emulate them in sd.c if the device is a floppy.

We certainly could do a sf.c that's similar in spirit to sr, sd, st, etc.
That might be the right approach, or it might be best to extend sd.
The SCSI-2 spec says that floppy drives are Direct Access Devices (which
sd normally drives).  But then, if we want to make it appear to Linux as
if it's a floppy drive, sf.c would be the right way to go.  If we want
to support machines with both a scsi floppy and a regular floppy at the
same time (and such machines can certainly be constructed; eg a C3000
with a SuperIO floppy and a scsi floppy, or a 725 with a Lasi floppy and
a scsi floppy), then I think we have to use the 'sd' approach to avoid
the drivers fighting over the major number.  A disadvantage to that is
the lack of different device nodes for different sector sizes ... otoh,
some may see that as an advantage ;-)

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On Thursday 08 February 2007, Max Grabert wrote:
> On 07/02/07, Michael Greene <listsnews@cox.net> wrote:
> >
> > I have my old J5600 recompiled and running with 2.6.19.1 kernel. I put
> > an old Voodoo3 2000 rev 1 in the secondary pci slot and it is recognized
> > by the system (not compiled in the kernel just lspci).  Is there any
> > trick to getting it to work with linux in the J5600 before I waste time
> > trying?
> 
> 
> At one time I was trying to use a Voodoo3 3000 in a C3000, but I was
> unsuccessful (linux fb wouldn't initialise/turn on the display, and
> the native XFree86 driver would crash the machine).
> That was about 2 years ago I think, and some things have changed since
> then ... you might even be successful today. Just try and find out :-)

I think you will fail.
If I remember correctly Vodoo3 needs the on-board i386 Graphics-BIOS to get into a useful state which can be used by vodoo fbdev driver.
Vodoo1 or Vodoo2 do work as framebuffer devices though.

Helge

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> I think you will fail.
> If I remember correctly Vodoo3 needs the on-board i386 Graphics-BIOS to get into a useful state which can be used by vodoo fbdev driver.
> Vodoo1 or Vodoo2 do work as framebuffer devices though.

The voodoo1/2 were designed as add on boards so there is enough info in
the docs to boot them, and in the source tree for glide to boot them
properly. The voodoo3 glide source tree may contain enough info, its hard
to tell.



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Subject: [parisc-linux] Another problem with making things static
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We're going to need this one reverting for parisc.  If you remember
we've been trying to push a compat_sys_rt_sigqueueinfo but Andi keeps
objecting, so it's remained local to our tree (an hence so has the
symbol usage).

However, can we *please* stop this indiscriminate rampage through all
the sybsystems making things static just because we can.  The true test
of whether a symbol should be static or not is whether it forms part of
a sensible API or not.  For subsystems with a well defined API, this is
quite easy (although it hasn't prevented attempts to make even those
symbols static).  For some of our core subsystems (like the kernel API
in this case) it's much less well defined ... although we have a good
solid white area of things that must be part of the API and a good solid
black area of things that mustn't, we still have a large grey area which
things like kill_proc_info() fall into.

For any person who wants to make a static symbol exported, we force an
explanation out of them about what they're trying to do and why.  Might
I suggest we apply the same standard to anyone trying to make something
static?  i.e. they need to explain clearly why the symbol shouldn't be
part of any rational API.

Thanks,

James


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From: Kyle McMartin <kyle@mcmartin.ca>
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On Thu, Feb 08, 2007 at 08:24:54PM -0700, Matthew Wilcox wrote:
> On Thu, Feb 08, 2007 at 07:43:14PM -0500, Kyle McMartin wrote:
> > > Right. This got inadvertantly reverted with some other stuff. Fixed in a
> > > second.
> > 
> > Fixed in 1736b4bbf2bbfebaad06114d569f3617517524d1.
> 
> make.err:/home/willy/nicol-2.6/arch/parisc/kernel/signal32.c:519:
> warning: implicit declaration of function 'kill_proc_info'
> make.err:(.text.compat_sys_rt_sigqueueinfo+0x80): undefined reference to
> `kill_proc_info'
> 

Guess who came home for Christmas

commit d3228a887cae75ef2b8b1211c31c539bef5a5698
Author: Adrian Bunk <bunk@stusta.de>
Date:   Wed Dec 6 20:38:22 2006 -0800

    [PATCH] make kernel/signal.c:kill_proc_info() static

    Signed-off-by: Adrian Bunk <bunk@stusta.de>
    Signed-off-by: Andrew Morton <akpm@osdl.org>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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On Sat, 2007-02-10 at 13:01 -0800, Andrew Morton wrote:
> On Sat, 10 Feb 2007 09:29:24 -0600 James Bottomley <James.Bottomley@SteelEye.com> wrote:
> 
> > For any person who wants to make a static symbol exported, we force an
> > explanation out of them about what they're trying to do and why.  Might
> > I suggest we apply the same standard to anyone trying to make something
> > static?  i.e. they need to explain clearly why the symbol shouldn't be
> > part of any rational API.
> > 
> 
> The majority of these things are simply oversights: people forgot to
> type `static'.
> 
> C got the defualt wrong..

I agree ... lots of symbols in drivers or filesystems are obviously not
part of APIs ... however, that's not necessarily true of the kernel
proper.  I think forcing someone to think about what they're doing and
justify going from non static to static or vice versa is a good idea in
those cases.

James


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On Sat, 2007-02-10 at 22:43 +0100, Adrian Bunk wrote:
> First of all thanks to Andrew for forwarding this email to me - it's 
> otherwise a bit hard to defend against an email that doesn't reach me.

I think if you read the email you'll find it didn't actually attack you
at all ... I was careful only to ask for a change of policy before
accepting a patch that does nothing but make a function static.

> >...
> > 
> > We're going to need this one reverting for parisc.  If you remember
> > we've been trying to push a compat_sys_rt_sigqueueinfo but Andi keeps
> > objecting, so it's remained local to our tree (an hence so has the
> > symbol usage).
> > 
> > However, can we *please* stop this indiscriminate rampage through all
> > the sybsystems making things static just because we can.  The true test
> > of whether a symbol should be static or not is whether it forms part of
> > a sensible API or not.  For subsystems with a well defined API, this is
> > quite easy (although it hasn't prevented attempts to make even those
> > symbols static).  For some of our core subsystems (like the kernel API
> > in this case) it's much less well defined ... although we have a good
> > solid white area of things that must be part of the API and a good solid
> > black area of things that mustn't, we still have a large grey area which
> > things like kill_proc_info() fall into.
> > 
> > For any person who wants to make a static symbol exported, we force an
> > explanation out of them about what they're trying to do and why.  Might
> > I suggest we apply the same standard to anyone trying to make something
> > static?  i.e. they need to explain clearly why the symbol shouldn't be
> > part of any rational API.
> 
> And by how many percent will this bloat the kernel more in the long 
> term?

That's something I'm more than willing to live with if the tradeoff is
we think before making things static.

> > Thanks,
> > 
> > James
> > Date: Thu, 8 Feb 2007 22:33:21 -0500
> > From: Kyle McMartin <kyle@mcmartin.ca>
> > To: Matthew Wilcox <matthew@wil.cx>
> > Cc: Kyle McMartin <kyle@mcmartin.ca>,
> > 	parisc-linux <parisc-linux@lists.parisc-linux.org>
> > Subject: Re: [parisc-linux] 64-bit kernel broken.
> > 
> > On Thu, Feb 08, 2007 at 08:24:54PM -0700, Matthew Wilcox wrote:
> > > On Thu, Feb 08, 2007 at 07:43:14PM -0500, Kyle McMartin wrote:
> > > > > Right. This got inadvertantly reverted with some other stuff. Fixed in a
> > > > > second.
> > > > 
> > > > Fixed in 1736b4bbf2bbfebaad06114d569f3617517524d1.
> > > 
> > > make.err:/home/willy/nicol-2.6/arch/parisc/kernel/signal32.c:519:
> > > warning: implicit declaration of function 'kill_proc_info'
> > > make.err:(.text.compat_sys_rt_sigqueueinfo+0x80): undefined reference to
> > > `kill_proc_info'
> > > 
> > 
> > Guess who came home for Christmas
> > 
> > commit d3228a887cae75ef2b8b1211c31c539bef5a5698
> > Author: Adrian Bunk <bunk@stusta.de>
> > Date:   Wed Dec 6 20:38:22 2006 -0800
> > 
> >     [PATCH] make kernel/signal.c:kill_proc_info() static
> > 
> >     Signed-off-by: Adrian Bunk <bunk@stusta.de>
> >     Signed-off-by: Andrew Morton <akpm@osdl.org>
> >     Signed-off-by: Linus Torvalds <torvalds@osdl.org>
> 
> There are hundreds of such patches of mine that got included in Linus' 
> tree and that didn't cause problems. Besides making the kernel smaller, 
> they regularly find "it should have been used" bugs.

> In this one case, a patch that made something static that wasn't used 
> from other files during the over 9 years of it's existence clashes with 
> another patch that adds a user.

I'm really not that interested in the number of users ... that's only
one part of the measure of the relevance of an API.  However, if we're
actually going to revoke an API I'd like it to be done on the API's
merits (or lack of them) rather than simply whether there are any
current in-kernel users.

> Can we agree that it's not a usual case that the first user gets added 
> after more than 9 years?

Actually, the compat_rtsiginfo patch has been argued over and honed for
at least 3 years, so I'd say your statement isn't necessarily correct.
For some of its life, it was even in -mm.

> And making it global again when a user gets included isn't really that 
> hard.

The life of a non-x86 architecture maintainer is hard ... it involves
having lots of volunteers tirelessly chasing down things that broke
during the big two week merge frenzy.  It would be really helpful if
things like this didn't add to that burden.

James


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On Sat, 2007-02-10 at 14:37 -0500, John David Anglin wrote:
> > 0x10 looks to be curr->func implying curr is NULL and thus the queue
> > task_list is corrupt.
> 
> Do you think it help to add a check in __wake_up for a NULL pointer?

I suppose so ... I'd really like someone to validate my guess though,
although an additional BUG_ON() can't hurt.

James


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Subject: [parisc-linux] Re: Expect defunct, kill -9 panics kernel?
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> Is this the usual behaviour you see?
> 
> 1. I run the gcc testsuite.
> 2. expect dies, leaving a defunct process.
> 3. Killing another expect panics the kernel.

It similar to the behavior that I see.  I don't usually see this
with expect though.  Possibly, this is because I use my own build
of expect linked tcl8.3.

I see this behavior quite consistently on my c3750 if I

1.  Run the gcc libjava testsuite.
2.  Usually, there a set of processes (e.g., Process_3) left running
    after the testsuite ends.  These processes are not defunct and
    load the processor.  I can kill all but the oldest thread.
3.  Killing the oldest thread panics the kernel.  Sometimes the system
    reboots.  However, the system often hangs doing endless panics.

I suspect a timing issue as the c3750 is the fastest processor that
I test on.  I don't see as many problems with the libjava testsuite
on slower hardware.  At one time, I thought this might be a 32 versus
64-bit issue, but I see the same problems running a 64-bit kernel.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Saturday 10 February 2007, John David Anglin wrote:
> > static void __lll_mutex_lock(int *futex)
> > {
> > 	int lws_errno =3D 14;
> > 	int lws_ret;
> > 	asm (
> > "0:					\n\t"
> > "copy	%3, %%r26			\n\t"
> > "copy	%4, %%r25			\n\t"
> > "copy	%5, %%r24			\n\t"
> > "ble	" "0xb0" "(%%sr2, %%r0)		\n\t"
> > "ldi	" "0" ", %%r20		\n\t"
> > "cmpib,=3D,n " "11" ",%%r21,0b	\n\t"
> > "nop					\n\t"
> > "stw	%%r28, %0			\n\t"
> > "sub	%%r0, %%r21, %%r21		\n\t"
> > "stw	%%r21, %1			\n\t"
> >
> > : "=3Dm" (lws_ret), "=3Dm"(lws_errno), "=3Dm"(*futex)
> > : "r"(futex), "r"(0), "r"(1)
> > :"r1", "r26", "r25", "r24", "r23", "r22", "r21", "r20", "r28", "r31",
> > : "memory"
> >
> > );
> > }
>
> Aren't lws_errno and lws_ret supposed to be global?  As is, they
> are just local variables and do nothing.

right, as they should be i think ... the sample here is reduced preprocesse=
d=20
code so you lose the visibility that ___lll_mutex_lock() is really just an=
=20
expanded macro from the atomic.h header and you lose a lot of the actual co=
de=20
(i removed the stuff that wasnt involved with the bad code generation)

lws_ret for sure should not be a local variable as that is the return value
=2Dmike

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On Sat, 10 Feb 2007 09:29:24 -0600 James Bottomley <James.Bottomley@SteelEye.com> wrote:

> For any person who wants to make a static symbol exported, we force an
> explanation out of them about what they're trying to do and why.  Might
> I suggest we apply the same standard to anyone trying to make something
> static?  i.e. they need to explain clearly why the symbol shouldn't be
> part of any rational API.
> 

The majority of these things are simply oversights: people forgot to
type `static'.

C got the defualt wrong..
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On Sat, 10 Feb 2007 19:47:16 -0600 James Bottomley <James.Bottomley@SteelEye.com> wrote:

> The life of a non-x86 architecture maintainer is hard ... it involves
> having lots of volunteers tirelessly chasing down things that broke
> during the big two week merge frenzy.

They should test -mm kernels and report any problems so those problems
don't get into mainline.

My attempt to build a working parisc cross-compiler failed, which doesn't help.
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On Sat, Feb 10, 2007 at 08:19:11PM -0800, Andrew Morton wrote:
> On Sat, 10 Feb 2007 19:47:16 -0600 James Bottomley <James.Bottomley@SteelEye.com> wrote:
> 
> > The life of a non-x86 architecture maintainer is hard ... it involves
> > having lots of volunteers tirelessly chasing down things that broke
> > during the big two week merge frenzy.
> 
> They should test -mm kernels and report any problems so those problems
> don't get into mainline.

We probably could start doing that for some of the build flavors (32 bit).
Kyle/Willy have done a great job of reducing the diff between kernel.org
and parisc-linux.org trees.


> My attempt to build a working parisc cross-compiler failed, which doesn't help.

I appreciate your attempt to build parisc-linux.
Could you post which source tree and which build command line you used?

I'm pretty sure this can be fixed.
We've used cross compilers in the past so I know it's worked before.

thanks,
grant

> _______________________________________________
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> parisc-linux@lists.parisc-linux.org
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On Sat, Feb 10, 2007 at 07:47:16PM -0600, James Bottomley wrote:
> On Sat, 2007-02-10 at 22:43 +0100, Adrian Bunk wrote:
> > First of all thanks to Andrew for forwarding this email to me - it's 
> > otherwise a bit hard to defend against an email that doesn't reach me.
> 
> I think if you read the email you'll find it didn't actually attack you
> at all ... I was careful only to ask for a change of policy before
> accepting a patch that does nothing but make a function static.

Then let's call it "trying to establish rule forbidding something 
established without even informing the people whose actions you want to 
become forbidden".

> > >...
> > > 
> > > We're going to need this one reverting for parisc.  If you remember
> > > we've been trying to push a compat_sys_rt_sigqueueinfo but Andi keeps
> > > objecting, so it's remained local to our tree (an hence so has the
> > > symbol usage).
> > > 
> > > However, can we *please* stop this indiscriminate rampage through all
> > > the sybsystems making things static just because we can.  The true test
> > > of whether a symbol should be static or not is whether it forms part of
> > > a sensible API or not.  For subsystems with a well defined API, this is
> > > quite easy (although it hasn't prevented attempts to make even those
> > > symbols static).  For some of our core subsystems (like the kernel API
> > > in this case) it's much less well defined ... although we have a good
> > > solid white area of things that must be part of the API and a good solid
> > > black area of things that mustn't, we still have a large grey area which
> > > things like kill_proc_info() fall into.
> > > 
> > > For any person who wants to make a static symbol exported, we force an
> > > explanation out of them about what they're trying to do and why.  Might
> > > I suggest we apply the same standard to anyone trying to make something
> > > static?  i.e. they need to explain clearly why the symbol shouldn't be
> > > part of any rational API.
> > 
> > And by how many percent will this bloat the kernel more in the long 
> > term?
> 
> That's something I'm more than willing to live with if the tradeoff is
> we think before making things static.

The big kernel size increase is a reason why many people in the embedded 
world stay at kernel 2.4.

The fact that you can't get a 2.6 kernel as small as a 2.4 kernel is a 
serious regression. And the last time I checked it wasn't that there's 
some well-defined area where the size increase comes from - it's more or 
less evenly distributed between all not unmaintained parts of the 
kernel.

> > > Thanks,
> > > 
> > > James
> > > Date: Thu, 8 Feb 2007 22:33:21 -0500
> > > From: Kyle McMartin <kyle@mcmartin.ca>
> > > To: Matthew Wilcox <matthew@wil.cx>
> > > Cc: Kyle McMartin <kyle@mcmartin.ca>,
> > > 	parisc-linux <parisc-linux@lists.parisc-linux.org>
> > > Subject: Re: [parisc-linux] 64-bit kernel broken.
> > > 
> > > On Thu, Feb 08, 2007 at 08:24:54PM -0700, Matthew Wilcox wrote:
> > > > On Thu, Feb 08, 2007 at 07:43:14PM -0500, Kyle McMartin wrote:
> > > > > > Right. This got inadvertantly reverted with some other stuff. Fixed in a
> > > > > > second.
> > > > > 
> > > > > Fixed in 1736b4bbf2bbfebaad06114d569f3617517524d1.
> > > > 
> > > > make.err:/home/willy/nicol-2.6/arch/parisc/kernel/signal32.c:519:
> > > > warning: implicit declaration of function 'kill_proc_info'
> > > > make.err:(.text.compat_sys_rt_sigqueueinfo+0x80): undefined reference to
> > > > `kill_proc_info'
> > > > 
> > > 
> > > Guess who came home for Christmas
> > > 
> > > commit d3228a887cae75ef2b8b1211c31c539bef5a5698
> > > Author: Adrian Bunk <bunk@stusta.de>
> > > Date:   Wed Dec 6 20:38:22 2006 -0800
> > > 
> > >     [PATCH] make kernel/signal.c:kill_proc_info() static
> > > 
> > >     Signed-off-by: Adrian Bunk <bunk@stusta.de>
> > >     Signed-off-by: Andrew Morton <akpm@osdl.org>
> > >     Signed-off-by: Linus Torvalds <torvalds@osdl.org>
> > 
> > There are hundreds of such patches of mine that got included in Linus' 
> > tree and that didn't cause problems. Besides making the kernel smaller, 
> > they regularly find "it should have been used" bugs.
> 
> > In this one case, a patch that made something static that wasn't used 
> > from other files during the over 9 years of it's existence clashes with 
> > another patch that adds a user.
> 
> I'm really not that interested in the number of users ... that's only
> one part of the measure of the relevance of an API.  However, if we're
> actually going to revoke an API I'd like it to be done on the API's
> merits (or lack of them) rather than simply whether there are any
> current in-kernel users.
> 
> > Can we agree that it's not a usual case that the first user gets added 
> > after more than 9 years?
> 
> Actually, the compat_rtsiginfo patch has been argued over and honed for
> at least 3 years, so I'd say your statement isn't necessarily correct.
> For some of its life, it was even in -mm.
> 
> > And making it global again when a user gets included isn't really that 
> > hard.
> 
> The life of a non-x86 architecture maintainer is hard ... it involves
> having lots of volunteers tirelessly chasing down things that broke
> during the big two week merge frenzy.  It would be really helpful if
> things like this didn't add to that burden.

The change was not in -mm recently.

The simple rules:
- get your changes in -mm and
- test -mm kernels and scream if someone broke your architecture
would discover many problems before the 2 weeks merge window (and before 
problems hit Linus' tree).

This would also eliminate problems like the parisc defconfig not 
compiling in 2.6.20 due to the work_struct changes.

> James

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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On Sun, 11 Feb 2007 00:25:52 -0700 Grant Grundler <grundler@parisc-linux.org> wrote:

> > My attempt to build a working parisc cross-compiler failed, which doesn't help.
> 
> I appreciate your attempt to build parisc-linux.
> Could you post which source tree and which build command line you used?

It was maybe a year back - I spent a couple of days wrestling with
crosstool, ended up with _some_ useful crosscompilers (alpha, arm, i386,
ia64, m68k, mips, s390, sparc, sparc64 and x86_64).  parisc was one of the
ones which I gave up on but I do not have a record of what the problem was,
sorry.  It would have been a toolchain problem, not a kernel problem.

The most usual failure mode was simply inability to find any combination of
gcc/binutils/glibc which could be compiled.

> I'm pretty sure this can be fixed.
> We've used cross compilers in the past so I know it's worked before.

I say this a lot, but...  It is in the interests of arch maintainers to
help others to build cross-compilers.  If someone were to prepare a web
page (or even a script) which could be used to generate a kernel
cross-compilation environment for parisc then the parisc maintainers would
see a lot less breakage.

For one, I do allmodconfig on all architectures on all patches I get (and
that includes all the git trees).  If stuff breaks, the breaker gets to
hear about it, before it gets merged.

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On Sat, 2007-02-10 at 12:16 -0500, Carlos O'Donell wrote:
> At what point in the process life are we in __wake_up and
> __wake_up_common?
> An address of 0x10 is very suspicious.

Almost every internal kernel event or semaphore uses these.

Because of the empty backtrace, I'd be inclined to say it was the
scheduler, possibly.

0x10 looks to be curr->func implying curr is NULL and thus the queue
task_list is corrupt.

That's the best I can do without the kernel to pull apart.

James


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	Feb 2, 2007 10:15:50 pm
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> static void __lll_mutex_lock(int *futex)
> {
> 	int lws_errno = 14; 
> 	int lws_ret;
> 	asm (
> "0:					\n\t" 
> "copy	%3, %%r26			\n\t" 
> "copy	%4, %%r25			\n\t" 
> "copy	%5, %%r24			\n\t" 
> "ble	" "0xb0" "(%%sr2, %%r0)		\n\t" 
> "ldi	" "0" ", %%r20		\n\t" 
> "cmpib,=,n " "11" ",%%r21,0b	\n\t" 
> "nop					\n\t" 
> "stw	%%r28, %0			\n\t" 
> "sub	%%r0, %%r21, %%r21		\n\t" 
> "stw	%%r21, %1			\n\t"
> : "=m" (lws_ret), "=m"(lws_errno), "=m"(*futex)
> : "r"(futex), "r"(0), "r"(1)
> :"r1", "r26", "r25", "r24", "r23", "r22", "r21", "r20", "r28", "r31", "memory"
> );
> }

Aren't lws_errno and lws_ret supposed to be global?  As is, they
are just local variables and do nothing.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> They are not global. They are local variables which are the rvalue in
> an assignment to something else.

Ok, then a register should be fine except you may have to make sure
that you have the appropriate clobbers for the syscall.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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Subject: Re: [parisc-linux] Expect defunct, kill -9 panics kernel?
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On Sun, 2007-02-11 at 12:09 -0500, Carlos O'Donell wrote:
> How do I validate your guess? Look for a null or bogus curr->func when
> scheduling?

Disassemble the piece in vmlinux for __wait_common and check that the
instruction that faulted is where the code gets the curr->func.

James


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Subject: [parisc-linux] Re: Fw: Another problem with making things static
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On Sun, 2007-02-11 at 08:35 +0100, Adrian Bunk wrote:
> On Sat, Feb 10, 2007 at 07:47:16PM -0600, James Bottomley wrote:
> > On Sat, 2007-02-10 at 22:43 +0100, Adrian Bunk wrote:
> > > First of all thanks to Andrew for forwarding this email to me - it's 
> > > otherwise a bit hard to defend against an email that doesn't reach me.
> > 
> > I think if you read the email you'll find it didn't actually attack you
> > at all ... I was careful only to ask for a change of policy before
> > accepting a patch that does nothing but make a function static.
> 
> Then let's call it "trying to establish rule forbidding something 
> established without even informing the people whose actions you want to 
> become forbidden".

I'm sorry, but I didn't realise you would be unable to come up with
justifications for API removal, and thus this would become an
insuperable bar to you.  The justification criterion was meant to be a
more objective way of judging whether some API should be revoked and it
seems to me, as a developer, to be a reasonable and not too onerous one.
As Andrew pointed out, for most of the driver and FS symbols the
justification is simply that this module isn't supposed to be exporting
an API at all.

James


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> On 2/10/07, James Bottomley <James.Bottomley@steeleye.com> wrote:
> > On Sat, 2007-02-10 at 14:37 -0500, John David Anglin wrote:
> > > > 0x10 looks to be curr->func implying curr is NULL and thus the queue
> > > > task_list is corrupt.
> > >
> > > Do you think it help to add a check in __wake_up for a NULL pointer?
> >
> > I suppose so ... I'd really like someone to validate my guess though,
> > although an additional BUG_ON() can't hurt.
> 
> How do I validate your guess? Look for a null or bogus curr->func when
> scheduling?

I'm trying the change below.  Hasn't triggered yet.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/kernel/sched.c b/kernel/sched.c
index cca93cc..277e426 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3703,6 +3703,7 @@ void fastcall __wake_up(wait_queue_head_t *q, unsigned int mode,
 {
 	unsigned long flags;
 
+	BUG_ON(!q);
 	spin_lock_irqsave(&q->lock, flags);
 	__wake_up_common(q, mode, nr_exclusive, 0, key);
 	spin_unlock_irqrestore(&q->lock, flags);
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Subject: Re: [parisc-linux] input constraints in atomic.h too loose ?
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> > /tmp/ccvCRbqg.s:43: Error: bad expression

> What *is* the bad assembly here. Please don't make me count assembly
> line numbers, just point me at the bad asm.

The problem is the "m" constraint is too broad for ldw and stw insns.
These instructions don't accept any memory address.  As suggested,
the "o" constraint should work.  Alternatively, the address of the
variables could be forced to a register.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> There was a reason I didn't force them to a register, but I can't
> remember. At this very moment I don't see why they couldn't have been
> "=r".

> Did you want to test "=r" and change the two stw's to copy's?

That won't work.  If these are global variables, you need the
*address* of the variables in registers and to use stw %rX,0(%Y)
instead of stw %rX,%Y.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Expect defunct, kill -9 panics kernel?
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On Sun, 2007-02-11 at 15:22 -0500, Carlos O'Donell wrote:
> On 2/11/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> > The faulting instruction is:
> >   74:   52 82 00 20     ldd 10(r20),rp
> >
> > Which is just before the curr->func call.
> >   78:   e8 40 f0 00     bve,l (rp),rp
> >   7c:   52 9b 00 30     ldd 18(r20),dp
> >
> > So your assumption was correct. The value of curr->func is null.
> > How did the list get corrupted?
> 
> ... to be precise, the faulting instruction is the break at 0x10 that
> we use for null pointer dereferences.

Right, now here's a bit of really useful detective work:

In the same piece of disassembly can you see what happens to %r26 ...
the first argument to __wake_up_common() which is the wait queue?  It
may be clobbered, but if it isn't by the time we fault we know that
0x45f10250 is the address of the wait queue.  If we're incredibly lucky,
it's a symbol in the vmlinux, can you see if it is (and if it's valid)?

Knowing what the wait queue is will tell us (hopefully) with precision
where the fault lies.

James


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> Right, now here's a bit of really useful detective work:
> 
> In the same piece of disassembly can you see what happens to %r26 ...
> the first argument to __wake_up_common() which is the wait queue?  It
> may be clobbered, but if it isn't by the time we fault we know that
> 0x45f10250 is the address of the wait queue.  If we're incredibly lucky,
> it's a symbol in the vmlinux, can you see if it is (and if it's valid)?

In the code I'm looking at, r26 is copied to r7 near the beginning of
__wake_up_common().  r7 is 0 in the register dump.  Of course, Carlos'
kernel may differ.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hi all,


While running and testing glibc-2.5, I've encountered the following problem :

hope bin # ./df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda3             276Y  276Y  539Z 100% /
sysfs                18641256972210Y 18634655137640Y 70815813734120Y  21% /sys
udev                 18641256972210Y 18634655137640Y 70815813734120Y  21% /dev
devpts               18641256972210Y 18634655137640Y 70815813734120Y  21% /dev/pts
shm                  18641256972210Y 18634655137640Y 70815813734120Y  21% /dev/shm
usbfs                18641256972210Y 18634655137640Y 70815813734120Y  21% /proc/bus/usb
playa:/usr/portage/distfiles
                     18641256972210Y 18634655137640Y 70815813734120Y  21% /usr/portage/distfiles
/dev/sdb4            18641256972210Y 18634655137640Y 70815813734120Y  21% /mnt/gentoo
/dev/sdb2            18641256972210Y 18634655137640Y 70815813734120Y  21% /mnt/gentoo/boot


Despite the fact that I whish I had that capacity, there is definately an issue.

This is using glibc-2.5, 2.6.20-pa0 and corresponding headers.


Let me know if you need more info.

Cheers,
  Guy



-- 
Guy Martin
Gentoo Linux - HPPA port lead

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Cc: James Bottomley <James.Bottomley@steeleye.com>,
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On 2/11/07, Grant Grundler <grundler@parisc-linux.org> wrote:
> On Sat, Feb 10, 2007 at 11:44:24PM -0800, Andrew Morton wrote:

> > I say this a lot, but...  It is in the interests of arch maintainers to
> > help others to build cross-compilers.  If someone were to prepare a web
> > page (or even a script) which could be used to generate a kernel
> > cross-compilation environment for parisc then the parisc maintainers would
> > see a lot less breakage.
>
> Agreed.
> We have such a page:
>         http://www.parisc-linux.org/toolchain/PARISC-Linux-XC-HOWTO.html
>
> (link "Build XC" from www.p-l.o homepage)

This is unfortunately rather outdated... I wonder if it'd still work.
I've built a parisc xcompiler a while ago using
toolchain-source/tpkg-make, I'll try to do that again and make a
receipe available online.

HTH

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On Sat, Feb 10, 2007 at 11:44:24PM -0800, Andrew Morton wrote:
> I say this a lot, but...  It is in the interests of arch maintainers to
> help others to build cross-compilers.  If someone were to prepare a web
> page (or even a script) which could be used to generate a kernel
> cross-compilation environment for parisc then the parisc maintainers would
> see a lot less breakage.
> 

Heh, I put this up last time you asked. :)

http://kyle.mcmartin.ca/hppa64-hp-linux-gcc-3.4.tar

Cheers,
	Kyle

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On Mon, Feb 12, 2007 at 10:28:44AM +0100, Guy Martin wrote:
> 
> Hi all,
> 
> 
> While running and testing glibc-2.5, I've encountered the following problem :
> 

Wow. Let me get my divining rod, crystal ball, and other tools to help
out my clairvoyance...

How about you strace it and tell us what bloody syscalls it used...
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Subject: Re: [parisc-linux] statfs() problem with glibc-2.5
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Hi all,


After some more troubleshooting, I've found out that parisc doesn't hook up the statfs64 syscall.

Applying the attached patch and recompile glibc with updated headers makes df works again.

Apparently, the statfs64 syscalls are available since 2.5.74.


Please review the patch.


Regards,
  Guy



On Mon, 12 Feb 2007 10:28:44 +0100
Guy Martin <gmsoft@gentoo.org> wrote:

> 
> Hi all,
> 
> 
> While running and testing glibc-2.5, I've encountered the following problem :
> 
> hope bin # ./df -h
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/sda3             276Y  276Y  539Z 100% /
> sysfs                18641256972210Y 18634655137640Y 70815813734120Y  21% /sys
> udev                 18641256972210Y 18634655137640Y 70815813734120Y  21% /dev
> devpts               18641256972210Y 18634655137640Y 70815813734120Y  21% /dev/pts
> shm                  18641256972210Y 18634655137640Y 70815813734120Y  21% /dev/shm
> usbfs                18641256972210Y 18634655137640Y 70815813734120Y  21% /proc/bus/usb
> playa:/usr/portage/distfiles
>                      18641256972210Y 18634655137640Y 70815813734120Y  21% /usr/portage/distfiles
> /dev/sdb4            18641256972210Y 18634655137640Y 70815813734120Y  21% /mnt/gentoo
> /dev/sdb2            18641256972210Y 18634655137640Y 70815813734120Y  21% /mnt/gentoo/boot
> 
> 
> Despite the fact that I whish I had that capacity, there is definately an issue.
> 
> This is using glibc-2.5, 2.6.20-pa0 and corresponding headers.
> 
> 
> Let me know if you need more info.
> 
> Cheers,
>   Guy
> 
> 
> 
> -- 
> Guy Martin
> Gentoo Linux - HPPA port lead
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


-- 
Guy Martin
Gentoo Linux - HPPA port lead


--Multipart=_Mon__12_Feb_2007_15_37_31_+0100_MfWJjtJO2MnLHGri
Content-Type: text/x-patch;
 name="hookup-statfs64-syscall-parisc.diff"
Content-Disposition: attachment; filename="hookup-statfs64-syscall-parisc.diff"
Content-Transfer-Encoding: 7bit

diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 5114666..fb6788f 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -403,5 +403,7 @@
 	ENTRY_COMP(move_pages)		/* 295 */
 	ENTRY_SAME(getcpu)
 	ENTRY_SAME(epoll_pwait)
+	ENTRY_COMP(statfs64)
+	ENTRY_COMP(fstatfs64)
 	/* Nothing yet */
 
diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
index 7c1bb8b..4369991 100644
--- a/include/asm-parisc/unistd.h
+++ b/include/asm-parisc/unistd.h
@@ -790,6 +790,8 @@
 #define __NR_move_pages		(__NR_Linux + 295)
 #define __NR_getcpu		(__NR_Linux + 296)
 #define __NR_epoll_pwait	(__NR_Linux + 297)
+#define __NR_statfs64		(__NR_Linux + 298)
+#define __NR_fstatfs64		(__NR_Linux + 299)
 
 #define __NR_Linux_syscalls     298
 

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On 12/02/07, Guy Martin <gmsoft@gentoo.org> wrote:
> After some more troubleshooting, I've found out that parisc doesn't hook up the statfs64 syscall.
>
> Applying the attached patch and recompile glibc with updated headers makes df works again.
>
> Apparently, the statfs64 syscalls are available since 2.5.74.

Thanks,  I'll test this later.  We have this problem in Ubuntu right
now on 64 bit kernels, but I hadn't narrowed it down enough to make a
report yet. =)

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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On Mon, Feb 12, 2007 at 03:37:31PM +0100, Guy Martin wrote:
> After some more troubleshooting, I've found out that parisc doesn't hook up the statfs64 syscall.

I thought we didn't need a statfs64 syscall since it returns the same
struct as statfs on parisc (due to the struct definitions already being
big enough).  However, now that I review the definitions, I think you're
right and we should hook it up.

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> On Sun, 11 Feb 2007 11:54:05 -0500 Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Sat, Feb 10, 2007 at 11:44:24PM -0800, Andrew Morton wrote:
> > I say this a lot, but...  It is in the interests of arch maintainers to
> > help others to build cross-compilers.  If someone were to prepare a web
> > page (or even a script) which could be used to generate a kernel
> > cross-compilation environment for parisc then the parisc maintainers would
> > see a lot less breakage.
> > 
> 
> Heh, I put this up last time you asked. :)
> 
> http://kyle.mcmartin.ca/hppa64-hp-linux-gcc-3.4.tar
> 

Drat, I have no memory of that.   Thanks..
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On Mon, Feb 12, 2007 at 09:14:28PM -0500, Carlos O'Donell wrote:
> @@ -505,17 +505,15 @@ asmlinkage long compat_sys_rt_sigqueuein
> 	struct compat_siginfo __user *uinfo)
> {
> 	siginfo_t info;
> +	int ret;
> +	mm_segment_t old_fs = get_fs();
> 
> 	if (copy_siginfo_from_user32(&info, uinfo))
> 		return -EFAULT;
> 
> -	/* Not even root can pretend to send signals from the kernel.
> -	   Nor can they impersonate a kill(), which adds source info.  */
> -	if (info.si_code >= 0)
> -		return -EPERM;
> -	info.si_signo = sig;
> -
> -	/* POSIX.1b doesn't mention process groups.  */
> -	return kill_proc_info(sig, &info, pid);
> +	set_fs (KERNEL_DS);
> +	ret = sys_rt_sigqueueinfo(pid, sig, &info);
> +	set_fs (old_fs);
> +	return ret;
> }
> 

Why? We replicate the code in sys_rt_sigqueueinfo here to avoid the nasty
set_fs/get_fs hacks. See my compat_sys_sysinfo changes for reference.
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Subject: [parisc-linux] Re: [PATCH] Compat signal fixes for 64-bit parisc.
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On Mon, Feb 12, 2007 at 09:14:28PM -0500, Carlos O'Donell wrote:
> I see we are back to using our antiquated version of
> copy_siginfo_to_user32. Let's stomp some bugs shall we? Please review.
> 

Well, you never pushed any of it upstream. I don't know what
you're complaining about.

> This fixes the tst-timer segfault with glibc head, and does a little
> cleanup. I have an acute feeling of deja-vu. Thankfully I feel taller
> than ever, and the whole fix only took a little sleuthing.
> 
> For nostalgia read..
> 
> Date	Wed, 10 Dec 2003 19:17:56 -0500
> From	Carlos O'Donell <>
> Subject	[RFC] Compat siginfo_t for 64-bit kernels running 32-bit 
> userspace.
> http://lkml.org/lkml/2003/12/10/225
> 
> ...and note the date.
> 

I'm well aware. You can't make such changes to the core kernel and then just
leave it for 3 years. We had to carry tens of KB of diff to the core kernel.

Whatever, I've hit a wall with parisc, anything I want to do is blocked on an
utter lack of documentation, so I pretty much have gone into maintenance mode
hibernation. I have cooler toys these days anyway.

-- Kyle
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On Mon, Feb 12, 2007 at 09:14:28PM -0500, Carlos O'Donell wrote:
> +			addr = (unsigned int)((u64)from->si_addr & 
> 0xffffffffUL);

I think this could be ptr_to_compat() here?

Cheers,
	Kyle
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Helge Deller wrote:
> On Thursday 08 February 2007, Max Grabert wrote:
>> On 07/02/07, Michael Greene <listsnews@cox.net> wrote:
>>> I have my old J5600 recompiled and running with 2.6.19.1 kernel. I put
>>> an old Voodoo3 2000 rev 1 in the secondary pci slot and it is recognized
>>> by the system (not compiled in the kernel just lspci).  Is there any
>>> trick to getting it to work with linux in the J5600 before I waste time
>>> trying?
>>
>> At one time I was trying to use a Voodoo3 3000 in a C3000, but I was
>> unsuccessful (linux fb wouldn't initialise/turn on the display, and
>> the native XFree86 driver would crash the machine).
>> That was about 2 years ago I think, and some things have changed since
>> then ... you might even be successful today. Just try and find out :-)
> 
> I think you will fail.
> If I remember correctly Vodoo3 needs the on-board i386 Graphics-BIOS to get into a useful state which can be used by vodoo fbdev driver.
> Vodoo1 or Vodoo2 do work as framebuffer devices though.
> 
> Helge

I guess you were correct. I finally got time to change and recompile the 
kernel. I pulled the old HP video card and inserted the Voodo3 2000 and 
here is the quick result:


Firmware Version 5.0


Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------

    (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved

------------------------------------------------------------------------------


   Processor   Speed            State           Coprocessor State  I/D 
Cache

   ---------  --------   ---------------------  ----------------- 
-------------

       0      552 MHz    Active                 Functional         512 
kB/1 MB
       1      552 MHz    Idle                   Functional         512 
kB/1 MB

   Central Bus Speed:                   120 MHz

   Available memory:             1073741824 bytes
   Good memory required:           87908352 bytes

   Primary boot path:    FWSCSI.3.0
   Alternate boot path:  IDE
   Console path:         PCI7.0.0
   Keyboard path:        USB


CPU 0
NOTICE :  Processor self-tests have been disabled because FASTBOOT is
           enabled.  To enable self-tests, disable FASTBOOT with the 
FASTBOOT
           command in the CONFIGURATION menu and reboot the system.
NOTICE :  Memory has been initialized but not tested because FASTBOOT is
           enabled.  To test memory, disable FASTBOOT with the FASTBOOT
           command in the CONFIGURATION menu and reboot the system.


CPU 1
NOTICE :  Processor self-tests have been disabled because FASTBOOT is
           enabled.  To enable self-tests, disable FASTBOOT with the 
FASTBOOT
           command in the CONFIGURATION menu and reboot the system.



Processor is booting from first available device.


To discontinue, press any key within 10 seconds.


10 seconds expired.

Proceeding...


Searching for device(s) with bootable media...

This may take several minutes.


To discontinue search, press any key (termination may not be immediate).


Attempting to boot Primary Path...

BOOTABLE DEVICE FOUND:
    Path Number        Device Path              Device Type and Utilities

    -----------        -----------------        -------------------------

    P0                 FWSCSI.3.0               FUJITSU MAJ3182MC
                                                IPL


Booting...

Boot IO Dependent Code (IODC) revision 0

HARD Booted.

palo ipl 1.14 root@edna Mon Aug 14 12:52:46 Local time zone must be 
set--see zic manual page 2006


Partition Start(MB) End(MB) Id Type


1               1     478   f0 Palo


2             479     956   83 ext2


5             957   17366   83 ext2



PALO(F0) partition contains:

     0/vmlinux32 5178464 bytes @ 0x44000


Information: No console specified on kernel command line. This is normal.

PALO will choose the console currently used by firmware (serial).

Command line for kernel: 'root=/dev/sda5 TERM=vt102 acpi=on 
console=ttyS0 palo_kernel=2/linux-2.6.19.1-hppa'

Selected kernel: /linux-2.6.19.1-hppa from partition 2

ELF32 executable

Entry 00100080 first 00100000 n 3

Segment 0 load 00100000 size 3093140 mediaptr 0x1000

Segment 1 load 003f4000 size 581632 mediaptr 0x2f5000

Segment 2 load 004e8000 size 289668 mediaptr 0x383000

Branching to kernel entry point 0x00100080.  If this is the last

message you see, you may need to switch your console.  This is

a common symptom -- search the FAQ and mailing list at parisc-linux.org


Linux version 2.6.19.1-pa0 (root@j5600) (gcc version 4.1.1 (Gentoo 
4.1.1-r3)) #10 SMP Wed Feb 14 13:16:10 EST 2007
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005d10 00000491 00000000 00000002 781d75ff 100000f0 00000008 
000000b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x3
model 9000/785/J5600
Total Memory: 1024 MB
LCD display at f05d0008,f05d0000 registered
SMP: bootstrap CPU ID is 0
Built 1 zonelists.  Total pages: 260096
Kernel command line: root=/dev/sda5 TERM=vt102 acpi=on console=ttyS0 
palo_kernel=2/linux-2.6.19.1-hppa
PID hash table entries: 4096 (order: 12, 16384 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 1032960k/1048576k available (2645k kernel code, 15488k reserved, 
922k data, 236k init)
virtual kernel memory layout:
     vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
     memory  : 0x10000000 - 0x50000000   (1024 MB)
       .init : 0x104f4000 - 0x1052f000   ( 236 kB)
       .data : 0x10395704 - 0x1047c000   ( 922 kB)
       .text : 0x10100000 - 0x10395704   (2645 kB)
Mount-cache hash table entries: 512
Brought up 1 CPUs
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed34000 [10/2] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
7. Forte W+ 2w at 0xfffa0000 [32] { 0, 0x0, 0x5d1, 0x00004 }
8. Forte W+ 2w at 0xfffa2000 [34] { 0, 0x0, 0x5d1, 0x00004 }
9. Memory at 0xfed10200 [49] { 1, 0x0, 0x09e, 0x00009 }
Enabling regular chassis codes support v0.05
Releasing cpu 1 now, hpa=fffa2000
FP[1] enabled: Rev 1 Model 16
migration_cost=4000
CPU(s): 2 x PA8600 (PCX-W+) at 552.000000 MHz
Setting cache flush threshold to 800 (2 CPUs online)
SBA found Astro 2.1 at 0xfed00000
Elroy version TR4.0 (0x5) found at 0xfed30000
PCI: Enabled native mode for NS87415 (pif=0x8f)
Elroy version TR4.0 (0x5) found at 0xfed32000
Elroy version TR4.0 (0x5) found at 0xfed34000
Elroy version TR4.0 (0x5) found at 0xfed38000
Elroy version TR4.0 (0x5) found at 0xfed3c000
Generic PHY: Registered new driver
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
TCP established hash table entries: 131072 (order: 8, 1572864 bytes)
TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
Enabling PDC chassis warnings support v0.05
unwind_init: start = 0x103f6580, end = 0x1041d970, entries = 10047
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler deadline registered
io scheduler cfq registered
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 20)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
PDC Stable Storage facility v0.30
Soft power switch enabled, polling @ 0xf0400804.
STI GSC/PCI core graphics driver Version 0.9a
fb: 3Dfx Voodoo3 memory = 16384K
Console: switching to colour frame buffer device 80x30
Generic RTC Driver v1.07
ipmi message handler version 39.0
ipmi device interface
IPMI System Interface driver.


Backtrace:
  [<104f987c>] smp_callin+0x178/0x18c
  [<1010024c>] smp_callin_rtn+0x0/0xc
  [<10238ed0>] memcpy+0x20/0x30
  [<10194e24>] d_rehash+0x34/0x50
  [<10104088>] __mutex_unlock_slowpath+0xc8/0x14c
  [<10195fb4>] dput+0x2c/0x1c4
  [<1019b664>] mntput_no_expire+0x2c/0xe4
  [<1018c8c4>] __link_path_walk+0x142c/0x1474
  [<1018cb38>] link_path_walk+0x22c/0x250
  [<1018d2d4>] do_path_lookup+0x4fc/0x540
  [<1018df24>] __path_lookup_intent_open+0x94/0xb0
  [<1018dfd8>] path_lookup_open+0x18/0x24
  [<10185e88>] open_exec+0x30/0xec
  [<10187b2c>] do_execve+0x270/0x298
  [<10127244>] try_to_wake_up+0x33c/0x3dc
  [<101029cc>] schedule+0x894/0xa14


High Priority Machine Check (HPMC): Code=1 regs=1042b080 (Addr=00000000)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001111 Not tainted
r00-03  0004000f 1047b500 10113c98 00000001
r04-07  0047c000 f0400008 000000fa f0002f68
r08-11  00000004 00000000 0004000e 104f9708
r12-15  000000f2 00000001 00000001 000000f3
r16-19  02020202 00000002 f000016c 10fa2930
r20-23  1047b508 0000000f 00000000 00000002
r24-27  00000000 10fb8000 10438080 1041f010
r28-31  00000010 0000011c 10fb8100 101028ac
sr00-03  00000000 00000000 00000000 00000000
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10113c80 10113c84
  IIR: 03c008bc    ISR: 00000000  IOR: 00000000
  CPU:        1   CR30: 10fb8000 CR31: ffffffff
  ORIG_R28: 00000000
  IAOQ[0]: cpu_idle+0x5c/0x78
  IAOQ[1]: cpu_idle+0x60/0x78
  RP(r2): cpu_idle+0x74/0x78
Kernel panic - not syncing: High Priority Machine Check (HPMC)



From - Thu Nov 08 21:35:39 2018
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Subject: Re: [parisc-linux] [RFC] Clone and fork considered dangerous from
	2.6.12 to 2.6.20, testers needed.
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Xref: news.gmane.org gmane.linux.ports.parisc:24328


Hi Carlos,

I did the test and I was not able to kernel panic with either my own build or the static file.
It never hanged at a 'for' line but did hanged in the two other around one time out of three.

My setup :
 - kernel-2.6.20-git from 13/02/2007 + your patch for pselect + my fstat64 patch reported in another email
 - glibc-2.5 with same patchset as my previous email
 - binutils-2.17.50.0.12
 - gcc-4.1.1-r3 with mfctl,w fix
 - c3600


However it did crash the kernel at run time with both builds after several kill.
The system was first slowly responsive for one or two secs and then it became frozen.

The output was the following :

 - with tst-fork1-static

[159429.070000]       _______________________________
[159429.070000]      < Your System ate a SPARC! Gah! >                       
[159429.070000]       -------------------------------                        
[159429.070000]              \   ^__^                                        
[159429.070000]               \  (xx)\_______                                
[159429.070000]                  (__)\       )\/\                            
[159429.070000]                   U  ||----w |                               
[159429.070000]                      ||     ||                               
[159429.488000] tst-fork1-stati (pid 22017): Protection id trap (code 27)    
[159429.566000]                                                              
[159429.585000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                        
[159429.642000] PSW: 00000000000001001111111100001111 Not tainted            
[159429.712000] r00-03  0004ff0f 10380000 000aadac 41800280                  
[159429.776000] r04-07  00000003 000aad98 41800310 00005606                  
[159429.839000] r08-11  0000000e deadbeef 000000fb fffff000                  
[159429.903000] r12-15  000000fb 00000007 000a7e10 00000000                  
[159429.967000] r16-19  000a5610 fb541298 000103f8 00000002                  
[159430.030000] r20-23  00000000 000003e4 00029e5c 00000000                  
[159430.094000] r24-27  00000002 00000003 000aadac 000a5610                  
[159430.157000] r28-31  00000003 00000000 418003c0 0002da3b                  
[159430.221000] sr00-03  0001daa1 00000000 00000000 0001daa1                 
[159430.286000] sr04-07  0001daa1 0001daa1 0001daa1 0001daa1                 
[159430.351000]                                                              
[159430.369000] IASQ: 00000000 00000000 IAOQ: 000003ec 000003f0              
[159430.437000]  IIR: 0f58d280    ISR: 0001daa1  IOR: 000aadac               
[159430.504000]  CPU:        0   CR30: 4a12c000 CR31: 104ec000               
[159430.571000]  ORIG_R28: 00000002                                          
[159430.609000]  IAOQ[0]: 0x3ec                                              
[159430.644000]  IAOQ[1]: 0x3f0                                              
[159430.678000]  RP(r2): nlm4svc_callback_ops+0x604/0xffffff90 [lockd]       
[159430.754000] Backtrace:                                                   
[159430.783000]  [<10106c74>] die_if_kernel+0x130/0x198                      
[159430.843000]  [<10107150>] handle_interruption+0x474/0x644                
[159430.908000]  [<1010a080>] intr_check_sig+0x0/0x34                        
[159430.966000]                                                              
[159430.985000]       _______________________________                        
[159430.985000]      < Your System ate a SPARC! Gah! >                       
[159430.985000]       -------------------------------                        
[159430.985000]              \   ^__^                                        
[159430.985000]               \  (xx)\_______                                
[159430.985000]                  (__)\       )\/\                            
[159430.985000]                   U  ||----w |                               
[159430.985000]                      ||     ||                               
[159431.403000] tst-fork1-stati (pid 22017): Protection id trap (code 27)    
[159431.481000] die_if_kernel() recursion detected.                          
[159441.482000] BUG: soft lockup detected on CPU#0!                          
[159441.482000] Backtrace:                                                   
[159441.482000]  [<1012d458>] update_process_times+0x44/0x7c                 
[159441.482000]  [<101074cc>] timer_interrupt+0x108/0x14c                    
[159441.482000]  [<101448fc>] handle_specific_irq_timer+0x48/0x80            
[159441.482000]  [<101079a4>] do_cpu_irq_mask+0xd0/0x110                     
[159441.482000]  [<1010a068>] intr_return+0x0/0xc                            
[159441.482000]

 - with tst-fork1

[4294874.057000]       _______________________________                       
[4294874.057000]      < Your System ate a SPARC! Gah! >                      
[4294874.057000]       -------------------------------                       
[4294874.057000]              \   ^__^                                       
[4294874.057000]               \  (xx)\_______                               
[4294874.057000]                  (__)\       )\/\                           
[4294874.057000]                   U  ||----w |                              
[4294874.057000]                      ||     ||                              
[4294874.483000] tst-fork1 (pid 3773): Protection id trap (code 27)          
[4294874.555000]                                                             
[4294874.575000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                       
[4294874.633000] PSW: 00000000000001101111111100001111 Not tainted           
[4294874.704000] r00-03  0006ff0f 10380000 40504acf 415b5280                 
[4294874.769000] r04-07  00000004 405b3a5c 415b5310 deadbeef                 
[4294874.834000] r08-11  0000000e 000000fb deadbeef 00000ec2                 
[4294874.898000] r12-15  deadbeef 40172e30 fffff000 00000007                 
[4294874.963000] r16-19  00000000 fb6c10d8 00012216 405b13a4                 
[4294875.028000] r20-23  00000000 000003e4 405aeea8 00000000                 
[4294875.092000] r24-27  00000003 00000004 405b3a5c 00012208                 
[4294875.157000] r28-31  00000004 00000003 415b53c0 40504b0b                 
[4294875.222000] sr00-03  000009d3 00000000 00000000 000009d3                
[4294875.287000] sr04-07  000009d3 000009d3 000009d3 000009d3                
[4294875.353000]                                                             
[4294875.373000] IASQ: 00000000 00000000 IAOQ: 000003ec 000003f0             
[4294875.442000]  IIR: 0f58d280    ISR: 000009d3  IOR: 405b3a5c              
[4294875.510000]  CPU:        0   CR30: 4e178000 CR31: 104ec000              
[4294875.578000]  ORIG_R28: 00000002                                         
[4294875.617000]  IAOQ[0]: 0x3ec                                             
[4294875.653000]  IAOQ[1]: 0x3f0                                             
[4294875.688000]  RP(r2): 0x40504acc                                         
[4294875.728000] Backtrace:                                                  
[4294875.758000]  [<10106c74>] die_if_kernel+0x130/0x198                     
[4294875.819000]  [<10107150>] handle_interruption+0x474/0x644               
[4294875.886000]  [<1010a080>] intr_check_sig+0x0/0x34                       
[4294876.003000]       _______________________________                       
[4294876.003000]      < Your System ate a SPARC! Gah! >                      
[4294876.003000]       -------------------------------                       
[4294876.003000]              \   ^__^                                       
[4294876.003000]               \  (xx)\_______                               
[4294876.003000]                  (__)\       )\/\                           
[4294876.003000]                   U  ||----w |                              
[4294876.003000]                      ||     ||                              
[4294876.429000] tst-fork1 (pid 3772): Protection id trap (code 27)          
[4294876.501000]                                                             
[4294876.521000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                       
[4294876.579000] PSW: 00000000000001100000000000001111 Not tainted           
[4294876.650000] r00-03  0006000f 10492248 00000001 00000000                 
[4294876.715000] r04-07  4fec9ae8 00000020 00000000 40176bc6                 
[4294876.780000] r08-11  00000000 4fec8948 4fec9ba8 40db521c                 
[4294876.844000] r12-15  00000004 00000000 00000ec1 00000007                 
[4294876.909000] r16-19  00000000 fb6c10d4 00012216 4f0816c0                 
[4294876.974000] r20-23  4f0816c0 00000600 00000041 00000001                 
[4294877.038000] r24-27  00000000 00000000 00000000 1044a010                 
[4294877.103000] r28-31  00000001 00000002 4e07c1c0 00000000                 
[4294877.168000] sr00-03  000009d5 00000000 00000000 000009d5                
[4294877.233000] sr04-07  00000000 00000000 00000000 00000000                
[4294877.299000]                                                             
[4294877.319000] IASQ: 00000000 00000000 IAOQ: 101258b4 101258b8             
[4294877.388000]  IIR: 0d75d280    ISR: 000009d5  IOR: 40db521c              
[4294877.456000]  CPU:        0   CR30: 4e07c000 CR31: 104ec000              
[4294877.523000]  ORIG_R28: 4e62ff44                                         
[4294877.563000]  IAOQ[0]: do_wait+0x5cc/0xae4                               
[4294877.613000]  IAOQ[1]: do_wait+0x5d0/0xae4                               
[4294877.664000]  RP(r2): 0x0                                                
[4294877.696000] Backtrace:                                                  
[4294877.726000]  [<10106c74>] die_if_kernel+0x130/0x198                     
[4294877.787000]  [<10107150>] handle_interruption+0x474/0x644               
[4294877.854000]  [<1010a080>] intr_check_sig+0x0/0x34                       
[4294877.912000]                                                             
[4294877.932000]       _______________________________                       
[4294877.932000]      < Your System ate a SPARC! Gah! >                      
[4294877.932000]       -------------------------------                       
[4294877.932000]              \   ^__^                                       
[4294877.932000]               \  (xx)\_______                               
[4294877.932000]                  (__)\       )\/\                           
[4294877.932000]                   U  ||----w |                              
[4294877.932000]                      ||     ||                              
[4294878.359000] tst-fork1 (pid 3772): Protection id trap (code 27)          
[4294878.430000] die_if_kernel() recursion detected.                         
[4294888.431000] BUG: soft lockup detected on CPU#0!                         
[4294888.431000] Backtrace:                                                  
[4294888.431000]  [<1012d458>] update_process_times+0x44/0x7c                
[4294888.431000]  [<101074cc>] timer_interrupt+0x108/0x14c                   
[4294888.431000]  [<101448fc>] handle_specific_irq_timer+0x48/0x80           
[4294888.431000]  [<101079a4>] do_cpu_irq_mask+0xd0/0x110                    
[4294888.431000]  [<1010a068>] intr_return+0x0/0xc

I've checked and all my sparc are in the basement. So it's not one of mine's fault :)

My K410 being dead and me too lazy to replace the mainboard, I can't test on it.

Let me know if you need more testing/info.

Cheers,
  Guy



On Mon, 12 Feb 2007 21:32:22 -0500
"Carlos O'Donell" <carlos@systemhalted.org> wrote:

> Sporadically when running the glibc test "tst-fork1" under 2.6.20 on a
> 64-bit kernel the parent process' threads stop running on the CPU, the
> time running for each thread increments, but stepping instructions
> e.g. gdb "si", never causes any execution
> 
> So far, each thread has been stuck in the delay slot of a branch,
> usually just after returning from the clone syscall. I see a couple of
> places in the kernel where we clear the PSW_B bit, but none seem to
> trigger this type of behaviour.
> 
> Luckily I can reproduce the behaviour at will with the following
> testcase. This test causes all sorts of nastiness for as old a kernel
> as I could test, starting with 2.6.12 for either 32 or 64-bit.
> 
> Steps to reproduce:
> 
> A. Download http://www.parisc-linux.org/~carlos/tst-fork1.tar.bz2
> B. Unpack tst-fork1.tar.bz2.
> 
> 1. Boot a recent 2.6.20 kernel on a 32 or 64-bit box.
> 2. Recompiple tst-fork1 with: gcc -lpthread -o tst-fork1 tst-fork1.c
> 3. Run "./tst-fork1 >& run.log" until the test blocks.
> 4. Try to use "kill -9" to remove all "tst-fork1" threads.
> 5. Watch your kernel die with a null pointer dereference in
> __wake_up_common indicating that there was some process list
> corruption. On older 32-bit kernels you make get "Slab corruption"
> warnings.
> 
> OR use a prebuilt static NPTL version:
> 
> 1. Boot a recent 2.6.20 kernel on a 32 or 64-bit box.
> 2. Run "./tst-fork1-static >& run.log" until the test blocks.
> 3. Determine the parent pid e.g. "pgrep tst-fork1-static"
> 4. Determine the tid of any child e.g. "ls -alt /proc/$ppid/task/*"
> 5. Start gdb.
> 6. In gdb issue "attach $tid"
> 7. Issue a "bt" to view the current pc, then issue "si" to step.
> 8. Issue a "dissasemble" to verify that pc is stuck in a branch delay slot.
> 9. Type CTRL+C to stop the process again, issue "bt" to  see nothing changed.
> 10. Force the pc to the next instruction e.g. "set $pcoqh = 0x????"
> where ???? is the address of the next instruction.
> 11. Type "continue" and watch your kernel die, or lockup, always
> printing "die_if_kernel() recursion detected." before dying.
> 
> If others could verify similar behaviour on different hardware that
> would be great.
> 
> Cheers,
> Carlos.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


-- 
Guy Martin
Gentoo Linux - HPPA port lead
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Xref: news.gmane.org gmane.linux.ports.parisc:24329

So I just finally got around to trying to organize a bit of the chaos
we have in our "git"[1] tree so that it can be sent along to Linus[2].

And, well, I'm kind of getting sick of it. I propose for at least the next
few months, instead of everyone being able to pollute the shared tree, they
keep all their work in branches. Instead of merging or pushing, or whatever,
you can send the patches to the list for review. This will work more or less
like linux-kernel does, hopefully. 

Your patch will get an ACK or NAK from others here, and I'll directly
merge the mail into my git tree, instead of waiting until there's an aperture
of Minimal Kyle Apathy[3] and having to sync up a pile of junk[4].

The goal here is n-fold, where n is determined by the number of points I'm
able to rattle off here and will neglect to update when I finish:

1. Reduce the number of commits and reversions because someone didn't like
   the change. Instead, we can all comment together. Yay. Blissful harmony.

2. Reduce the number of brown paper bag bugs, which mean I have to fold
   multiple changesets together. Annoying.

e. Increase our use of the idea of merges and changesets to form a real
   tree, instead of just blatting everything into a linear shared tree.

pi. Reduce the amount of half-baked commits, not to pick on Helge, but
   the ENTRY macros were a good example of this. I count 4 commits just to
   add these macros.

Anyway, hopefully this will reduce the amount of shit I have to filter
through in order to sync up to Linus, and maybe we can actually merge more
than once per cycle, and have proper bugfixes, and such. Wouldn't it be nice?

Objections? Tomatoes?

The Last Word(tm):
	Well. It works for everyone else. Why should we be special?

[01:41] * kyle falls off the pulpit.

Footnotes:
1: Frankly I find this shared git tree thing to be a huge waste of my time,
   we're no better off than we were with CVS...

2: Don't know what difference it makes having a buildable tree when SMP
   is utterly broken, and SCSI offlines devices left, right and centre when
   you're trying to get some work done... So yeah, you could say I'm a little
   unmotivated to care.

3: Apathy was pretty high right now, but I'm bored, and it is Friday night.
   That and Jeff asked real nice for me to get the Ubuntu kernel tree
   somewhat up to date so he can do glibc work.

4: Yeah, most of you know way better than me, and write far less shite code
   than I do. But I'm the one having to do the merging.
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On Sat, Feb 17, 2007 at 01:46:48AM -0500, kyle mcmartin wrote:
> And, well, I'm kind of getting sick of it. I propose for at least the next
> few months, instead of everyone being able to pollute the shared tree, they
> keep all their work in branches. Instead of merging or pushing, or whatever,
> you can send the patches to the list for review. This will work more or less
> like linux-kernel does, hopefully. 

Ok. Fair enough. Well said. Can someone with more git experience than I
have share a recipe for creating and committing to a git branch?
Maybe post that on one of the existing HOW-TO web pages or a new wiki page?

And yes, the fact that SMP is broken bothers me too.
I've spent some time looking at the cpu_possible_map patch pointed
out by james bottomly (IIRC) and I haven't figure out why that
has the impact that it does.

I also haven't had time to dig more into why the schedule is
only running things on CPU 0.

thanks,
grant
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On Sat, 2007-02-17 at 03:30 -0700, Grant Grundler wrote:
> And yes, the fact that SMP is broken bothers me too.
> I've spent some time looking at the cpu_possible_map patch pointed
> out by james bottomly (IIRC) and I haven't figure out why that
> has the impact that it does.

Let me go over it one more time for the record, since the problem has
really only been outlined on IRC.

In the 2.6.18 timeframe Nick Piggin introduced a bug into the smp tuning
system with commit 5c1e176781f43bc902a51e5832f789756bff911b

What he's doing is trying to ensure /sbin/init doesn't start (or get
scheduled) on an isolated CPU.  However, he built this change on
cpu_online_map, which contains precisely the boot cpu at the point
sched_init_smp() is called.  The result was that init was restricted to
the boot CPU, as was everything that inherited its cpus_allowed from
init (i.e. every other process).  I think it may only have been parisc
that was affected like this, since we hotplug boot our cpus.

Post 2.6.19 the bug was spotted and fixed by Nathan Lynch with commit
e5e5673f828623e58a401862b33173591faaeaff.  When this commit was applied
parisc began hanging in the SMP boot sequence.

However, this patch is not the *cause* of the problem.  If you back port
it to 2.6.19-pa0 (which has the piggin bug) you'll see that it boots
just fine SMP and correctly schedules on all CPUs.

So, what happened is that the bug which is causing our SMP boot hangs
got introduced somewhere between 2.6.19 and the Lynch bug fix, but we
didn't spot it because parisc was only scheduling on the boot CPU and it
didn't show up.

Analysis of my system shows that it's occurring when a shell script dots
in another shell script (i.e. it could be a fork or signal bug).  Also
reverting all 30 commits affecting sched.c during the window doesn't fix
it.  Unfortunately, the tree isn't really in a good enough state to try
to bisect it.

> I also haven't had time to dig more into why the schedule is
> only running things on CPU 0.

Hopefully the above explains that.

James


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Subject: Re: [parisc-linux] Let's Try Something New(tm)
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> Your patch will get an ACK or NAK from others here, and I'll directly
> merge the mail into my git tree, instead of waiting until there's an aperture
> of Minimal Kyle Apathy[3] and having to sync up a pile of junk[4].

Yes, the shared parisc-linux tree needs to be eliminated ASAP.  It's
very hard to determine which change caused a breakage, and as you say,
you are spending a lot of time syncing up a pile of junk.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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You're missing Signed-off-by, and since you don't have commit access, I
cannot implicitly add it. Please resend the patch with your S-o-b line added.

> diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
> index 5114666..fb6788f 100644
> --- a/arch/parisc/kernel/syscall_table.S
> +++ b/arch/parisc/kernel/syscall_table.S
> @@ -403,5 +403,7 @@
>  	ENTRY_COMP(move_pages)		/* 295 */
>  	ENTRY_SAME(getcpu)
>  	ENTRY_SAME(epoll_pwait)
> +	ENTRY_COMP(statfs64)
> +	ENTRY_COMP(fstatfs64)
>  	/* Nothing yet */
>  
> diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
> index 7c1bb8b..4369991 100644
> --- a/include/asm-parisc/unistd.h
> +++ b/include/asm-parisc/unistd.h
> @@ -790,6 +790,8 @@
>  #define __NR_move_pages		(__NR_Linux + 295)
>  #define __NR_getcpu		(__NR_Linux + 296)
>  #define __NR_epoll_pwait	(__NR_Linux + 297)
> +#define __NR_statfs64		(__NR_Linux + 298)
> +#define __NR_fstatfs64		(__NR_Linux + 299)
>  
>  #define __NR_Linux_syscalls     298
>  

> _______________________________________________
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On Sat, Feb 17, 2007 at 03:30:18AM -0700, Grant Grundler wrote:
> On Sat, Feb 17, 2007 at 01:46:48AM -0500, kyle mcmartin wrote:
> > And, well, I'm kind of getting sick of it. I propose for at least the next
> > few months, instead of everyone being able to pollute the shared tree, they
> > keep all their work in branches. Instead of merging or pushing, or whatever,
> > you can send the patches to the list for review. This will work more or less
> > like linux-kernel does, hopefully. 
> 
> Ok. Fair enough. Well said. Can someone with more git experience than I
> have share a recipe for creating and committing to a git branch?
> Maybe post that on one of the existing HOW-TO web pages or a new wiki page?
> 

I will post it to the wiki page, but the basic gist is you checkout a new
branch...

git checkout -b NEW_BRANCH_NAME

to branch off of the current working branch...

Or

git checkout -b NEW_BRANCH SOME_TAG_OR_OTHER_HEAD_OR_SHA1

to build a new branch at some previous or future point.

You can see what you're doing when you gitk afterwards.

Use git-branch to find out what branch you are on.
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I had a segv in /bin/sh today:

Core was generated by `/bin/sh -c echo ../../../gcc/libjava/classpath/lib/java/awt/im/spi/*.class > ja'.
Program terminated with signal 11, Segmentation fault.
#0  0x4073b16c in init () from /lib/libc.so.6
(gdb) bt
#0  0x4073b16c in init () from /lib/libc.so.6
#1  0x400d77e8 in call_init () from /lib/ld.so.1
#2  0x400d77e8 in call_init () from /lib/ld.so.1
Previous frame identical to this frame (corrupt stack?)
(gdb) disass 0x4073b15c 0x4073b17c
Dump of assembler code from 0x4073b15c to 0x4073b17c:
0x4073b15c <_dl_start+12>:      stw r19,-20(sp)
0x4073b160 <_dl_start+16>:      nop
0x4073b164 <init+0>:    stw rp,-14(sp)
0x4073b168 <init+4>:    addil L%1000,r19,r1
0x4073b16c <init+8>:    ldw 450(r1),ret0
0x4073b170 <init+12>:   stw,ma r6,40(sp)
0x4073b174 <init+16>:   copy r24,r6
0x4073b178 <init+20>:   stw r5,-3c(sp)
End of assembler dump.
(gdb) p/x $r1
$1 = 0x40df352f
(gdb) p/x $r19
$2 = 0x40df252f

So, the problem is that r19 is corrupt when init is called.  Looking
at call_init, I see:

0x400d77ac <call_init+176>:     bb,<,n r20,1e,0x400d7884 <call_init+392>
0x400d77b0 <call_init+180>:     cmpib,=,n 0,r21,0x400d77ec <call_init+240>
0x400d77b4 <call_init+184>:     ldw 4(r21),r20
0x400d77b8 <call_init+188>:     ldw 0(r3),ret0
0x400d77bc <call_init+192>:     add,l ret0,r20,r22
0x400d77c0 <call_init+196>:     bb,>=,n r22,1e,0x400d7854 <call_init+344>
0x400d77c4 <call_init+200>:     copy r19,r4
0x400d77c8 <call_init+204>:     fstw fr14,-10(sp)
0x400d77cc <call_init+208>:     ldw -10(sp),r26
0x400d77d0 <call_init+212>:     fstw fr13,-10(sp)
0x400d77d4 <call_init+216>:     ldw -10(sp),r25
0x400d77d8 <call_init+220>:     fstw fr12,-10(sp)
0x400d77dc <call_init+224>:     ldw -10(sp),r24
0x400d77e0 <call_init+228>:     b,l 0x400dedd4 <$$dyncall>,r31
0x400d77e4 <call_init+232>:     copy r31,rp
0x400d77e8 <call_init+236>:     copy r4,r19

The address for the call to init is constructed by the loads at
0x400d77b4 and 0x400d77b8, followed by the add at 0x400d77bc:

gdb) p/x $r3
$8 = 0x400010b0
(gdb) x/x 0x400010b0
0x400010b0:     0x4071c000
(gdb) p/x $r21
$9 = 0x408621dc
(gdb) x/4x 0x408621dc
0x408621dc <.LC2+20>:   0x0000000c      0x0001f164      0x0000001a      0x001441e0
(gdb) p/x 0x4071c000 + 0x0001f164
$12 = 0x4073b164

So, init is being called directly.  This highly suspect for a call
in a shared library ($$dyncall won't setup r19).

I still don't completely understand what's happening here as r4 and
r19 don't appear to be consistent.  Here's the register dump:

Feb 17 11:58:01 localhost kernel: do_page_fault() pid=26501 command='sh' type=15 address=0x40df397f
Feb 17 11:58:01 localhost kernel: vm_start = 0x40868000, vm_end = 0x4086a000
Feb 17 11:58:01 localhost kernel:
Feb 17 11:58:01 localhost kernel:      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
Feb 17 11:58:01 localhost kernel: PSW: 00000000000001100000000100001111 Not tainted
Feb 17 11:58:01 localhost kernel: r00-03  000000000006010f 0000000040df352f 00000000400d77eb 00000000400010b0
Feb 17 11:58:01 localhost kernel: r04-07  00000000400f49b8 0000000000000002 0000000000000005 00000000400f5888
Feb 17 11:58:01 localhost kernel: r08-11  00000000400f5874 0000000000032000 0000000000033000 0000000000046ee8
Feb 17 11:58:01 localhost kernel: r12-15  0000000000000001 0000000000032000 0000000000046ee8 0000000000046ee8
Feb 17 11:58:01 localhost kernel: r16-19  0000000000000001 0000000000000000 0000000000046ee8 0000000040df252f
Feb 17 11:58:01 localhost kernel: r20-23  000000004086221c 00000000408621dc 000000004073b164 00000000c030e8bc
Feb 17 11:58:01 localhost kernel: r24-27  00000000c030e8bc 00000000c030e8ac 0000000000000003 00000000000d6d34
Feb 17 11:58:01 localhost kernel: r28-31  0000000040df252f 00000000000000d0 00000000c030ec80 00000000400d77eb
Feb 17 11:58:01 localhost kernel: sr00-03  0000000000e8c800 0000000000e8c800 0000000000000000 0000000000e8c800
Feb 17 11:58:01 localhost kernel: sr04-07  0000000000e8c800 0000000000e8c800 0000000000e8c800 0000000000e8c800

This would appear to have something to do with this define:

/* The test for "addr & 2" below is to accomodate old binaries which
   violated the ELF ABI by pointing DT_INIT and DT_FINI at a function
   descriptor.  */
#define DL_DT_INIT_ADDRESS(map, addr) \
  ((Elf32_Addr)(addr) & 2 ? (addr) : DL_AUTO_FUNCTION_ADDRESS (map, addr))

Dave
- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:24336

On Sat, Feb 17, 2007 at 01:46:48AM -0500, kyle mcmartin wrote:
> 1: Frankly I find this shared git tree thing to be a huge waste of my time,
>    we're no better off than we were with CVS...
> 

There was a question on why, so here goes,

Currently, the shared git tree is permanently divergent from the Linus tree.
Because Linus never merges from this tree, it is impossible to ever see what
changesets remain outstanding, since the changesets which are merged come
>from the second tree.

(kyle)                       --o--o--o--o--o----o
                            /                    \
(linus) --o--o--o--o--o--o-----o--o--o--o--o--o---X--o--o--
                             \
(parisc) --o--o--o--o--o--o---X---o--o--o--o--o--o

Where 'X' is a pull from the other tree into the X'd tree.

Anyway, the idea is to reduce this to one tree so there will be back and
forth pulling from the same tree, making it really easy to see which
long-term patches are still outstanding from the noise of the fast-moving
patches.

Or something.
	-- Kyle
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On Sat, Feb 17, 2007 at 04:59:00PM -0500, Kyle McMartin wrote:
> Anyway, the idea is to reduce this to one tree so there will be back and
> forth pulling from the same tree, making it really easy to see which
> long-term patches are still outstanding from the noise of the fast-moving
> patches.
> 

Easy to see since they'll be on a branch, I mean.
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> /* The test for "addr & 2" below is to accomodate old binaries which
>    violated the ELF ABI by pointing DT_INIT and DT_FINI at a function
>    descriptor.  */
> #define DL_DT_INIT_ADDRESS(map, addr) \
>   ((Elf32_Addr)(addr) & 2 ? (addr) : DL_AUTO_FUNCTION_ADDRESS (map, addr))

This is the ia64 define:

#define DL_DT_INIT_ADDRESS(map, addr) DL_AUTO_FUNCTION_ADDRESS (map, addr)

Calls to init on ia64 always use a function descriptor.

While it's possible that DT_INIT and DT_FINI shouldn't point at function
descriptors, the above hack can't be right since DL_DT_INIT_ADDRESS is used
for calling init() from dl-init.c:

      init_t init = (init_t) DL_DT_INIT_ADDRESS
	(l, l->l_addr + l->l_info[DT_INIT]->d_un.d_ptr);

      /* Call the function.  */
      init (argc, argv, env);

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: call_init in libc6 2.3.6.ds1-11
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> > While it's possible that DT_INIT and DT_FINI shouldn't point at function
> > descriptors, the above hack can't be right since DL_DT_INIT_ADDRESS is used
> > for calling init() from dl-init.c:
> >
> >       init_t init = (init_t) DL_DT_INIT_ADDRESS
> >         (l, l->l_addr + l->l_info[DT_INIT]->d_un.d_ptr);
> >
> >       /* Call the function.  */
> >       init (argc, argv, env);
> 
> We might have been lucky in that init () called another function which
> setup r19 for us before we accessed data. I agree completely that r19
> should be set to the r19 of the module before calling init(), even if
> it *is* or *isn't* a function descriptor.
> 
> I wrote dl-lookupcfg.h, and the code you see there is legacy. I
> carried it forward without understanding what it meant.

It may be that special care is needed for applications that are
statically linked.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: [PARISC] fix uninitialized spinlock in HIL keyboard driver
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From: Helge Deller <deller@gmx.de>

- remove some warnings for PARISC part of the driver
- annotate hphilkeyb_keycode[] array as __read_mostly

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 drivers/input/keyboard/hilkbd.c |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
index c2264a6..585f0a7 100644
--- a/drivers/input/keyboard/hilkbd.c
+++ b/drivers/input/keyboard/hilkbd.c
@@ -3,7 +3,7 @@
  *
  *  Copyright (C) 1998 Philip Blundell <philb@gnu.org>
  *  Copyright (C) 1999 Matthew Wilcox <willy@bofh.ai>
- *  Copyright (C) 1999-2006 Helge Deller <deller@gmx.de>
+ *  Copyright (C) 1999-2007 Helge Deller <deller@gmx.de>
  *
  *  Very basic HP Human Interface Loop (HIL) driver.
  *  This driver handles the keyboard on HP300 (m68k) and on some
@@ -89,7 +89,7 @@ MODULE_LICENSE("GPL v2");
 #define	HIL_READKBDSADR	 	0xF9
 #define	HIL_WRITEKBDSADR 	0xE9
 
-static unsigned int hphilkeyb_keycode[HIL_KEYCODES_SET1_TBLSIZE] =
+static unsigned int hphilkeyb_keycode[HIL_KEYCODES_SET1_TBLSIZE] __read_mostly =
 	{ HIL_KEYCODES_SET1 };
 
 /* HIL structure */
@@ -211,6 +211,7 @@ hil_keyb_init(void)
 		return -ENODEV; /* already initialized */
 	}
 
+	spin_lock_init(&hil_dev.lock);
 	hil_dev.dev = input_allocate_device();
 	if (!hil_dev.dev)
 		return -ENOMEM;
@@ -295,7 +296,9 @@ err3:
 	free_irq(HIL_IRQ, hil_dev.dev_id);
 err2:
 	release_region(HILBASE + HIL_DATA, 2);
+#if defined(CONFIG_HP300)
 err1:
+#endif
 	input_free_device(hil_dev.dev);
 	hil_dev.dev = NULL;
 	return err;
@@ -307,7 +310,7 @@ static int __init
 hil_init_chip(struct parisc_device *dev)
 {
 	if (!dev->irq) {
-		printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%08lx\n", dev->hpa.start);
+		printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%08lux\n", (unsigned long)dev->hpa.start);
 		return -ENODEV;
 	}
 
-- 
1.4.4.4



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Xref: news.gmane.org gmane.linux.ports.parisc:24341

From: Helge Deller <deller@gmx.de>

- mark some structures and data as const or __read_mostly; use USEC_PER_SEC

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 drivers/input/keyboard/hil_kbd.c |    8 ++++----
 drivers/input/serio/hil_mlc.c    |   19 +++++++++----------
 drivers/input/serio/hp_sdc.c     |   10 +++++-----
 drivers/input/serio/hp_sdc_mlc.c |    3 ++-
 4 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index 7cc9728..7143f37 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -51,7 +51,7 @@ MODULE_LICENSE("Dual BSD/GPL");
 
 #define HIL_KBD_SET1_UPBIT 0x01
 #define HIL_KBD_SET1_SHIFT 1
-static unsigned int hil_kbd_set1[HIL_KEYCODES_SET1_TBLSIZE] = 
+static unsigned int hil_kbd_set1[HIL_KEYCODES_SET1_TBLSIZE] __read_mostly =
 	{ HIL_KEYCODES_SET1 };
 
 #define HIL_KBD_SET2_UPBIT 0x01
@@ -60,10 +60,10 @@ static unsigned int hil_kbd_set1[HIL_KEYCODES_SET1_TBLSIZE] =
 
 #define HIL_KBD_SET3_UPBIT 0x80
 #define HIL_KBD_SET3_SHIFT 0
-static unsigned int hil_kbd_set3[HIL_KEYCODES_SET3_TBLSIZE] =
+static unsigned int hil_kbd_set3[HIL_KEYCODES_SET3_TBLSIZE] __read_mostly =
 	{ HIL_KEYCODES_SET3 };
 
-static char hil_language[][16] = { HIL_LOCALE_MAP };
+static const char hil_language[][16] = { HIL_LOCALE_MAP };
 
 struct hil_kbd {
 	struct input_dev *dev;
@@ -368,7 +368,7 @@ static struct serio_device_id hil_kbd_ids[] = {
 	{ 0 }
 };
 
-struct serio_driver hil_kbd_serio_drv = {
+static struct serio_driver hil_kbd_serio_drv = {
 	.driver		= {
 		.name	= "hil_kbd",
 	},
diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index 49e11e2..80f0e23 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -409,7 +409,7 @@ static int hilse_operate(hil_mlc *mlc, int repoll) {
 #define OUT_LAST(pack) \
 { HILSE_OUT_LAST,	{ .packet = pack }, 0, 0, 0, 0 },
 
-struct hilse_node hil_mlc_se[HILSEN_END] = {
+const struct hilse_node hil_mlc_se[HILSEN_END] = {
 
 	/* 0  HILSEN_START */
 	FUNC(hilse_init_lcv, 0,	HILSEN_NEXT,	HILSEN_SLEEP,	0)
@@ -531,7 +531,7 @@ struct hilse_node hil_mlc_se[HILSEN_END] = {
 	/* 60 HILSEN_END */
 };
 
-static inline void hilse_setup_input(hil_mlc *mlc, struct hilse_node *node) {
+static inline void hilse_setup_input(hil_mlc *mlc, const struct hilse_node *node) {
 
 	switch (node->act) {
 	case HILSE_EXPECT_DISC:
@@ -564,21 +564,19 @@ static inline void hilse_setup_input(hil_mlc *mlc, struct hilse_node *node) {
 #ifdef HIL_MLC_DEBUG
 static int doze = 0;
 static int seidx; /* For debug */
-static int kick = 1;
 #endif
 
 static int hilse_donode (hil_mlc *mlc) {
-	struct hilse_node *node;
+	const struct hilse_node *node;
 	int nextidx = 0;
 	int sched_long = 0;
 	unsigned long flags;
 
 #ifdef HIL_MLC_DEBUG
 	if (mlc->seidx && (mlc->seidx != seidx)  && mlc->seidx != 41 && mlc->seidx != 42 && mlc->seidx != 43) {
-	  printk(KERN_DEBUG PREFIX "z%i \n%s {%i}", doze, kick ? "K" : "", mlc->seidx);
+	  printk(KERN_DEBUG PREFIX "z%i \n {%i}", doze, mlc->seidx);
 		doze = 0;
 	}
-	kick = 0;
 
 	seidx = mlc->seidx;
 #endif
@@ -589,7 +587,6 @@ static int hilse_donode (hil_mlc *mlc) {
 		hil_packet pack;
 
 	case HILSE_FUNC:
-		if (node->object.func == NULL) break;
 		rc = node->object.func(mlc, node->arg);
 		nextidx = (rc > 0) ? node->ugly : 
 			((rc < 0) ? node->bad : node->good);
@@ -675,10 +672,10 @@ static int hilse_donode (hil_mlc *mlc) {
 		if (!sched_long) goto sched;
 
 		do_gettimeofday(&tv);
-		tv.tv_usec += 1000000 * (tv.tv_sec - mlc->instart.tv_sec);
+		tv.tv_usec += USEC_PER_SEC * (tv.tv_sec - mlc->instart.tv_sec);
 		tv.tv_usec -= mlc->instart.tv_usec;
 		if (tv.tv_usec >= mlc->intimeout) goto sched;
-		tv.tv_usec = (mlc->intimeout - tv.tv_usec) * HZ / 1000000;
+		tv.tv_usec = (mlc->intimeout - tv.tv_usec) * HZ / USEC_PER_SEC;
 		if (!tv.tv_usec) goto sched;
 		mod_timer(&hil_mlcs_kicker, jiffies + tv.tv_usec);
 		break;
@@ -838,7 +835,7 @@ static void hil_mlc_serio_close(struct serio *serio) {
 	/* TODO wake up interruptable */
 }
 
-static struct serio_device_id hil_mlc_serio_id = {
+static const struct serio_device_id hil_mlc_serio_id = {
 	.type = SERIO_HIL_MLC,
 	.proto = SERIO_HIL,
 	.extra = SERIO_ANY,
@@ -874,6 +871,8 @@ int hil_mlc_register(hil_mlc *mlc) {
 		hil_mlc_copy_di_scratch(mlc, i);
 		mlc_serio = kzalloc(sizeof(*mlc_serio), GFP_KERNEL);
 		mlc->serio[i] = mlc_serio;
+		snprintf(mlc_serio->name, sizeof(mlc_serio->name)-1, "HIL_SERIO%d", i);
+		snprintf(mlc_serio->phys, sizeof(mlc_serio->phys)-1, "HIL%d", i);
 		mlc_serio->id			= hil_mlc_serio_id;
 		mlc_serio->write		= hil_mlc_serio_write;
 		mlc_serio->open			= hil_mlc_serio_open;
diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index 211ff44..ae6b816 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -749,7 +749,7 @@ void hp_sdc_kicker (unsigned long data) {
 
 #if defined(__hppa__)
 
-static struct parisc_device_id hp_sdc_tbl[] = {
+static const struct parisc_device_id hp_sdc_tbl[] = {
 	{
 		.hw_type =	HPHW_FIO, 
 		.hversion_rev =	HVERSION_REV_ANY_ID,
@@ -818,12 +818,12 @@ static int __init hp_sdc_init(void)
 #endif	
 
 	errstr = "IRQ not available for";
-	if (request_irq(hp_sdc.irq, &hp_sdc_isr, 0, "HP SDC", &hp_sdc))
-		goto err1;
+	if (request_irq(hp_sdc.irq, &hp_sdc_isr, IRQF_SHARED|IRQF_SAMPLE_RANDOM,
+		"HP SDC", &hp_sdc)) goto err1;
 
 	errstr = "NMI not available for";
-	if (request_irq(hp_sdc.nmi, &hp_sdc_nmisr, 0, "HP SDC NMI", &hp_sdc))
-		goto err2;
+	if (request_irq(hp_sdc.nmi, &hp_sdc_nmisr, IRQF_SHARED,
+		"HP SDC NMI", &hp_sdc)) goto err2;
 
 	printk(KERN_INFO PREFIX "HP SDC at 0x%p, IRQ %d (NMI IRQ %d)\n", 
 	       (void *)hp_sdc.base_io, hp_sdc.irq, hp_sdc.nmi);
diff --git a/drivers/input/serio/hp_sdc_mlc.c b/drivers/input/serio/hp_sdc_mlc.c
index aa4a8a4..1f131ff 100644
--- a/drivers/input/serio/hp_sdc_mlc.c
+++ b/drivers/input/serio/hp_sdc_mlc.c
@@ -323,11 +323,12 @@ static int __init hp_sdc_mlc_init(void)
 	mlc->in			= &hp_sdc_mlc_in;
 	mlc->out		= &hp_sdc_mlc_out;
 
+	mlc->priv		= &hp_sdc_mlc_priv;
+
 	if (hil_mlc_register(mlc)) {
 		printk(KERN_WARNING PREFIX "Failed to register MLC structure with hil_mlc\n");
 		goto err0;
 	}
-	mlc->priv		= &hp_sdc_mlc_priv;
 
 	if (hp_sdc_request_hil_irq(&hp_sdc_mlc_isr)) {
 		printk(KERN_WARNING PREFIX "Request for raw HIL ISR hook denied\n");
-- 
1.4.4.4



From - Thu Nov 08 21:35:40 2018
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From: Kyle McMartin <kyle@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [PARISC] hp_sdc: fix request_irq()/free_irq() parameters
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Xref: news.gmane.org gmane.linux.ports.parisc:24342

From: Helge Deller <deller@gmx.de>

With this fix it's possible to load and unload the hp_sdc module multiple times.
Before the first loading of the module requested the irq lines, but never was able to free them again.
This, a second loading of the module failed, because the irq was still occupied.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 drivers/input/serio/hp_sdc.c |   14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index 9907ad3..211ff44 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -818,12 +818,12 @@ static int __init hp_sdc_init(void)
 #endif	
 
 	errstr = "IRQ not available for";
-        if(request_irq(hp_sdc.irq, &hp_sdc_isr, 0, "HP SDC",
-		       (void *) hp_sdc.base_io)) goto err1;
+	if (request_irq(hp_sdc.irq, &hp_sdc_isr, 0, "HP SDC", &hp_sdc))
+		goto err1;
 
 	errstr = "NMI not available for";
-	if (request_irq(hp_sdc.nmi, &hp_sdc_nmisr, 0, "HP SDC NMI", 
-			(void *) hp_sdc.base_io)) goto err2;
+	if (request_irq(hp_sdc.nmi, &hp_sdc_nmisr, 0, "HP SDC NMI", &hp_sdc))
+		goto err2;
 
 	printk(KERN_INFO PREFIX "HP SDC at 0x%p, IRQ %d (NMI IRQ %d)\n", 
 	       (void *)hp_sdc.base_io, hp_sdc.irq, hp_sdc.nmi);
@@ -855,7 +855,7 @@ static int __init hp_sdc_init(void)
 	hp_sdc.dev_err = 0;
 	return 0;
  err2:
-	free_irq(hp_sdc.irq, NULL);
+	free_irq(hp_sdc.irq, &hp_sdc);
  err1:
 	release_region(hp_sdc.data_io, 2);
  err0:
@@ -899,8 +899,8 @@ static void hp_sdc_exit(void)
 	/* Wait until we know this has been processed by the i8042 */
 	hp_sdc_spin_ibf();
 
-	free_irq(hp_sdc.nmi, NULL);
-	free_irq(hp_sdc.irq, NULL);
+	free_irq(hp_sdc.nmi, &hp_sdc);
+	free_irq(hp_sdc.irq, &hp_sdc);
 	write_unlock_irq(&hp_sdc.lock);
 
 	del_timer(&hp_sdc.kicker);
-- 
1.4.4.4



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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: [PARISC] add error-checking in hil_keyb_init
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Xref: news.gmane.org gmane.linux.ports.parisc:24343

From: Cyrill V. Gorcunov <gorcunov@gmail.com>

Also some extra spaces are removed.

Signed-off-by: Cyrill V. Gorcunov <gorcunov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 drivers/input/keyboard/hilkbd.c |  106 +++++++++++++++++++++++----------------
 1 files changed, 62 insertions(+), 44 deletions(-)

diff --git a/drivers/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
index 35461ea..c2264a6 100644
--- a/drivers/input/keyboard/hilkbd.c
+++ b/drivers/input/keyboard/hilkbd.c
@@ -6,10 +6,10 @@
  *  Copyright (C) 1999-2006 Helge Deller <deller@gmx.de>
  *
  *  Very basic HP Human Interface Loop (HIL) driver.
- *  This driver handles the keyboard on HP300 (m68k) and on some 
+ *  This driver handles the keyboard on HP300 (m68k) and on some
  *  HP700 (parisc) series machines.
  *
- * 
+ *
  * This file is subject to the terms and conditions of the GNU General Public
  * License version 2.  See the file COPYING in the main directory of this
  * archive for more details.
@@ -64,9 +64,9 @@ MODULE_LICENSE("GPL v2");
 #endif
 
 
- 
+
 /* HIL helper functions */
- 
+
 #define hil_busy()              (hil_readb(HILBASE + HIL_CMD) & HIL_BUSY)
 #define hil_data_available()    (hil_readb(HILBASE + HIL_CMD) & HIL_DATA_RDY)
 #define hil_status()            (hil_readb(HILBASE + HIL_CMD))
@@ -75,7 +75,7 @@ MODULE_LICENSE("GPL v2");
 #define hil_write_data(x)       do { hil_writeb((x), HILBASE + HIL_DATA); } while (0)
 
 /* HIL constants */
- 
+
 #define	HIL_BUSY		0x02
 #define	HIL_DATA_RDY		0x01
 
@@ -89,7 +89,7 @@ MODULE_LICENSE("GPL v2");
 #define	HIL_READKBDSADR	 	0xF9
 #define	HIL_WRITEKBDSADR 	0xE9
 
-static unsigned int hphilkeyb_keycode[HIL_KEYCODES_SET1_TBLSIZE] = 
+static unsigned int hphilkeyb_keycode[HIL_KEYCODES_SET1_TBLSIZE] =
 	{ HIL_KEYCODES_SET1 };
 
 /* HIL structure */
@@ -97,11 +97,11 @@ static struct {
 	struct input_dev *dev;
 
 	unsigned int curdev;
-	
+
 	unsigned char s;
 	unsigned char c;
 	int valid;
-	
+
 	unsigned char data[16];
 	unsigned int ptr;
 	spinlock_t lock;
@@ -115,7 +115,7 @@ static void poll_finished(void)
 	int down;
 	int key;
 	unsigned char scode;
-	
+
 	switch (hil_dev.data[0]) {
 	case 0x40:
 		down = (hil_dev.data[1] & 1) == 0;
@@ -127,6 +127,7 @@ static void poll_finished(void)
 	hil_dev.curdev = 0;
 }
 
+
 static inline void handle_status(unsigned char s, unsigned char c)
 {
 	if (c & 0x8) {
@@ -143,6 +144,7 @@ static inline void handle_status(unsigned char s, unsigned char c)
 	}
 }
 
+
 static inline void handle_data(unsigned char s, unsigned char c)
 {
 	if (hil_dev.curdev) {
@@ -152,13 +154,11 @@ static inline void handle_data(unsigned char s, unsigned char c)
 }
 
 
-/* 
- * Handle HIL interrupts.
- */
+/* handle HIL interrupts */
 static irqreturn_t hil_interrupt(int irq, void *handle)
 {
 	unsigned char s, c;
-	
+
 	s = hil_status();
 	c = hil_read_data();
 
@@ -179,10 +179,8 @@ static irqreturn_t hil_interrupt(int irq, void *handle)
 	return IRQ_HANDLED;
 }
 
-/*
- * Send a command to the HIL
- */
 
+/* send a command to the HIL */
 static void hil_do(unsigned char cmd, unsigned char *data, unsigned int len)
 {
 	unsigned long flags;
@@ -200,16 +198,14 @@ static void hil_do(unsigned char cmd, unsigned char *data, unsigned int len)
 }
 
 
-/*
- * Initialise HIL. 
- */
-
+/* initialise HIL */
 static int __init
 hil_keyb_init(void)
 {
 	unsigned char c;
 	unsigned int i, kbid;
 	wait_queue_head_t hil_wait;
+	int err;
 
 	if (hil_dev.dev) {
 		return -ENODEV; /* already initialized */
@@ -219,15 +215,25 @@ hil_keyb_init(void)
 	if (!hil_dev.dev)
 		return -ENOMEM;
 	hil_dev.dev->private = &hil_dev;
-	
+
 #if defined(CONFIG_HP300)
-	if (!hwreg_present((void *)(HILBASE + HIL_DATA)))
-		return -ENODEV;
-	
-	request_region(HILBASE+HIL_DATA, 2, "hil");
+	if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
+		printk(KERN_ERR "HIL: hardware register was not found\n");
+		err = -ENODEV;
+		goto err1;
+	}
+	if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
+		printk(KERN_ERR "HIL: IOPORT region already used\n");
+		err = -EIO;
+		goto err1;
+	}
 #endif
-	
-	request_irq(HIL_IRQ, hil_interrupt, 0, "hil", hil_dev.dev_id);
+
+	err = request_irq(HIL_IRQ, hil_interrupt, 0, "hil", hil_dev.dev_id);
+	if (err) {
+		printk(KERN_ERR "HIL: Can't get IRQ\n");
+		goto err2;
+	}
 
 	/* Turn on interrupts */
 	hil_do(HIL_INTON, NULL, 0);
@@ -239,32 +245,32 @@ hil_keyb_init(void)
 	init_waitqueue_head(&hil_wait);
 	wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3*HZ);
 	if (!hil_dev.valid) {
-		printk(KERN_WARNING "HIL: timed out, assuming no keyboard present.\n");
+		printk(KERN_WARNING "HIL: timed out, assuming no keyboard present\n");
 	}
 
-	c = hil_dev.c; 
+	c = hil_dev.c;
 	hil_dev.valid = 0;
 	if (c == 0) {
 		kbid = -1;
-		printk(KERN_WARNING "HIL: no keyboard present.\n");
+		printk(KERN_WARNING "HIL: no keyboard present\n");
 	} else {
 		kbid = ffz(~c);
-		/* printk(KERN_INFO "HIL: keyboard found at id %d\n", kbid); */
+		printk(KERN_INFO "HIL: keyboard found at id %d\n", kbid);
 	}
 
 	/* set it to raw mode */
 	c = 0;
 	hil_do(HIL_WRITEKBDSADR, &c, 1);
-	
+
 	for (i = 0; i < HIL_KEYCODES_SET1_TBLSIZE; i++)
 		if (hphilkeyb_keycode[i] != KEY_RESERVED)
 			set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);
 
-	hil_dev.dev->evbit[0]    = BIT(EV_KEY) | BIT(EV_REP);
-	hil_dev.dev->ledbit[0]   = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
-	hil_dev.dev->keycodemax  = HIL_KEYCODES_SET1_TBLSIZE;
-	hil_dev.dev->keycodesize = sizeof(hphilkeyb_keycode[0]);
-	hil_dev.dev->keycode     = hphilkeyb_keycode;
+	hil_dev.dev->evbit[0]	= BIT(EV_KEY) | BIT(EV_REP);
+	hil_dev.dev->ledbit[0]	= BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
+	hil_dev.dev->keycodemax	= HIL_KEYCODES_SET1_TBLSIZE;
+	hil_dev.dev->keycodesize= sizeof(hphilkeyb_keycode[0]);
+	hil_dev.dev->keycode	= hphilkeyb_keycode;
 	hil_dev.dev->name 	= "HIL keyboard";
 	hil_dev.dev->phys 	= "hpkbd/input0";
 
@@ -273,13 +279,29 @@ hil_keyb_init(void)
 	hil_dev.dev->id.product	= 0x0001;
 	hil_dev.dev->id.version	= 0x0010;
 
-	input_register_device(hil_dev.dev);
+	err = input_register_device(hil_dev.dev);
+	if (err) {
+		printk(KERN_ERR "HIL: Can't register device\n");
+		goto err3;
+	}
 	printk(KERN_INFO "input: %s, ID %d at 0x%08lx (irq %d) found and attached\n",
-		hil_dev.dev->name, kbid, HILBASE, HIL_IRQ);
+	       hil_dev.dev->name, kbid, HILBASE, HIL_IRQ);
 
 	return 0;
+
+err3:
+	hil_do(HIL_INTOFF, NULL, 0);
+	disable_irq(HIL_IRQ);
+	free_irq(HIL_IRQ, hil_dev.dev_id);
+err2:
+	release_region(HILBASE + HIL_DATA, 2);
+err1:
+	input_free_device(hil_dev.dev);
+	hil_dev.dev = NULL;
+	return err;
 }
 
+
 #if defined(CONFIG_PARISC)
 static int __init
 hil_init_chip(struct parisc_device *dev)
@@ -292,7 +314,7 @@ hil_init_chip(struct parisc_device *dev)
 	hil_base = dev->hpa.start;
 	hil_irq  = dev->irq;
 	hil_dev.dev_id = dev;
-	
+
 	printk(KERN_INFO "Found HIL bus at 0x%08lx, IRQ %d\n", hil_base, hil_irq);
 
 	return hil_keyb_init();
@@ -313,9 +335,6 @@ static struct parisc_driver hil_driver = {
 #endif /* CONFIG_PARISC */
 
 
-
-
-
 static int __init hil_init(void)
 {
 #if defined(CONFIG_PARISC)
@@ -349,4 +368,3 @@ static void __exit hil_exit(void)
 
 module_init(hil_init);
 module_exit(hil_exit);

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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: [parisc-linux] [PARISC] input: queued patches from parisc-linux
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Xref: news.gmane.org gmane.linux.ports.parisc:24344


Hi Dmitry,

The following are some patches committed to the input subsystem
>from parisc-linux.

Apologies if this turns out badly, this is my first time using
git-send-email...

 keyboard/hil_kbd.c |    8 +--
 keyboard/hilkbd.c  |  113 +++++++++++++++++++++++++++++++----------------------
 serio/hil_mlc.c    |   19 ++++----
 serio/hp_sdc.c     |   16 +++----
 serio/hp_sdc_mlc.c |    3 -
 5 files changed, 90 insertions(+), 69 deletions(-)

Cyrill V. Gorcunov (1):
      [PARISC] add error-checking in hil_keyb_init

Helge Deller (3):
      [PARISC] fix uninitialized spinlock in HIL keyboard driver
      [PARISC] hp_sdc: fix request_irq()/free_irq() parameters
      [PARISC] input: various cleanups

Cheers,
	Kyle M.
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Xref: news.gmane.org gmane.linux.ports.parisc:24345

> Both cases work correctly. So what happened in the original post?

There's two checks in call_init for the plabel bit:

0x400d77a4 <call_init+168>:     ldw 678(r1),ret0
0x400d77a8 <call_init+172>:     ldw 0(ret0),r20
0x400d77ac <call_init+176>:     bb,<,n r20,1e,0x400d7884 <call_init+392>
0x400d77b0 <call_init+180>:     cmpib,=,n 0,r21,0x400d77ec <call_init+240>
0x400d77b4 <call_init+184>:     ldw 4(r21),r20
0x400d77b8 <call_init+188>:     ldw 0(r3),ret0
0x400d77bc <call_init+192>:     add,l ret0,r20,r22
0x400d77c0 <call_init+196>:     bb,>=,n r22,1e,0x400d7854 <call_init+344>
0x400d77c4 <call_init+200>:     copy r19,r4
0x400d77c8 <call_init+204>:     fstw fr14,-10(sp)
0x400d77cc <call_init+208>:     ldw -10(sp),r26
0x400d77d0 <call_init+212>:     fstw fr13,-10(sp)
0x400d77d4 <call_init+216>:     ldw -10(sp),r25
0x400d77d8 <call_init+220>:     fstw fr12,-10(sp)
0x400d77dc <call_init+224>:     ldw -10(sp),r24
0x400d77e0 <call_init+228>:     b,l 0x400dedd4 <$$dyncall>,r31
0x400d77e4 <call_init+232>:     copy r31,rp
0x400d77e8 <call_init+236>:     copy r4,r19

It's the latter one that didn't have the plabel bit.  Didn't check
the first.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] Re: [PARISC] fix uninitialized spinlock in HIL
	keyboard driver
Date: Sat, 17 Feb 2007 23:21:36 +0100
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Cc: akpm@osdl.org,
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Xref: news.gmane.org gmane.linux.ports.parisc:24346

Hi Dimitry,

please see below...

On Saturday 17 February 2007, Kyle McMartin wrote:
> From: Helge Deller <deller@gmx.de>
> 
> - remove some warnings for PARISC part of the driver
> - annotate hphilkeyb_keycode[] array as __read_mostly
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
> ---
>  drivers/input/keyboard/hilkbd.c |    9 ++++++---
>  1 files changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
> index c2264a6..585f0a7 100644
> --- a/drivers/input/keyboard/hilkbd.c
> +++ b/drivers/input/keyboard/hilkbd.c
> @@ -3,7 +3,7 @@
>   *
>   *  Copyright (C) 1998 Philip Blundell <philb@gnu.org>
>   *  Copyright (C) 1999 Matthew Wilcox <willy@bofh.ai>
> - *  Copyright (C) 1999-2006 Helge Deller <deller@gmx.de>
> + *  Copyright (C) 1999-2007 Helge Deller <deller@gmx.de>
>   *
>   *  Very basic HP Human Interface Loop (HIL) driver.
>   *  This driver handles the keyboard on HP300 (m68k) and on some
> @@ -89,7 +89,7 @@ MODULE_LICENSE("GPL v2");
>  #define	HIL_READKBDSADR	 	0xF9
>  #define	HIL_WRITEKBDSADR 	0xE9
>  
> -static unsigned int hphilkeyb_keycode[HIL_KEYCODES_SET1_TBLSIZE] =
> +static unsigned int hphilkeyb_keycode[HIL_KEYCODES_SET1_TBLSIZE] __read_mostly =
>  	{ HIL_KEYCODES_SET1 };
>  
>  /* HIL structure */
> @@ -211,6 +211,7 @@ hil_keyb_init(void)
>  		return -ENODEV; /* already initialized */
>  	}
>  
> +	spin_lock_init(&hil_dev.lock);
>  	hil_dev.dev = input_allocate_device();
>  	if (!hil_dev.dev)
>  		return -ENOMEM;

>from here....

> @@ -295,7 +296,9 @@ err3:
>  	free_irq(HIL_IRQ, hil_dev.dev_id);
>  err2:
>  	release_region(HILBASE + HIL_DATA, 2);
> +#if defined(CONFIG_HP300)
>  err1:
> +#endif
>  	input_free_device(hil_dev.dev);
>  	hil_dev.dev = NULL;
>  	return err;

Can you drop this ^^ piece of this patch ?
Cyrill V. Gorcunov's (<gorcunov@gmail.com>) HP300 patches from a few days ago are more correct since they include the release_region() call.

Or, if you want, I can resend this whole patch against your input-tree ?
Just let me know...

Helge


> @@ -307,7 +310,7 @@ static int __init
>  hil_init_chip(struct parisc_device *dev)
>  {
>  	if (!dev->irq) {
> -		printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%08lx\n", dev->hpa.start);
> +		printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%08lux\n", (unsigned long)dev->hpa.start);
>  		return -ENODEV;
>  	}
>  
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From: James Bottomley <James.Bottomley@SteelEye.com>
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Subject: [parisc-linux] gsyprf11 has a failing root disk
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The log is full of these:

sd 1:0:15:0: SCSI error: return code = 0x8000002
sda: Current: sense key=0x4
    ASC=0x3 <<vendor>> ASCQ=0x80

The ASCQ is vendor specific, but the key means "hardware error" and ASC
0x03 is usually associated with some type of internal write error, so I
think it's safe to say the root disc is dying.  Can we get it replaced?

Thanks,

James


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Xref: news.gmane.org gmane.linux.ports.parisc:24348

Hi Kyle,

On Saturday 17 February 2007, Grant Grundler wrote:
> On Sat, Feb 17, 2007 at 01:46:48AM -0500, kyle mcmartin wrote:
> > And, well, I'm kind of getting sick of it. I propose for at least the next
> > few months, instead of everyone being able to pollute the shared tree, they
> > keep all their work in branches. Instead of merging or pushing, or whatever,
> > you can send the patches to the list for review. This will work more or less
> > like linux-kernel does, hopefully. 
> 
> Ok. Fair enough. Well said. 

Fine with me as well.

Thanks for the merging Kyle !

Helge


> Can someone with more git experience than I 
> have share a recipe for creating and committing to a git branch?
> Maybe post that on one of the existing HOW-TO web pages or a new wiki page?
> 
> And yes, the fact that SMP is broken bothers me too.
> I've spent some time looking at the cpu_possible_map patch pointed
> out by james bottomly (IIRC) and I haven't figure out why that
> has the impact that it does.
> 
> I also haven't had time to dig more into why the schedule is
> only running things on CPU 0.
> 
> thanks,
> grant
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 


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Xref: news.gmane.org gmane.linux.ports.parisc:24349

On Sat, Feb 17, 2007 at 04:23:40PM -0600, James Bottomley wrote:
> The log is full of these:
> 
> sd 1:0:15:0: SCSI error: return code = 0x8000002
> sda: Current: sense key=0x4
>     ASC=0x3 <<vendor>> ASCQ=0x80
> 
> The ASCQ is vendor specific, but the key means "hardware error" and ASC
> 0x03 is usually associated with some type of internal write error, so I
> think it's safe to say the root disc is dying.  Can we get it replaced?

Yes...jda and I already had this conversation.

I'm off to Lake Tahoe for the rest of the week.
But I'll ask Rick Jones if he can replace it with the "second"
disk from another system. Then from the console someone will
just need to fixup the network, add /etc/init.d/firewall, and 
mount /home. If that's all a bit much for someone, it will have
to wait until I'm back in 10 days and can head down to cupertino.

Note that /home on gsyprf11 wasn't doing too well either.

"We apologize for the inconvience."

*sigh*,
grant
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Subject: Re: [parisc-linux] Re: call_init in libc6 2.3.6.ds1-11
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> So what is the verdict? I think the code looks right.
> 
> readelf -a /bin/bash shows:
>  0x0000000c (INIT)                       0x24198
> 
> This is a not an OPD, and therefore will have a local non-unique OPD
> constructed for the call.

See the same for INIT in /bin/sh.  However, the INIT value of interest
here is that for /lib/libc.so.6:

dave@mx3210:~/gnu/gcc-4.3/objdir/hppa-linux/libjava$ readelf -a /lib/libc.so.6|grep INIT
 0x0000000c (INIT)                       0x1f164

This was the value at r21 + 4.  This value also isn't an OPD.  However,
I showed before that init() didn't get called using an OPD.  As a result,
r19 was likely incorrect for the call.  See the code snippet in the
original report.

Possibly, there's a GCC optimization bug but I'm not sure.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Dmitry Torokhov <dtor@insightbb.com>
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Subject: Re: [PARISC] fix uninitialized spinlock in HIL keyboard driver
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Xref: news.gmane.org gmane.linux.ports.parisc:24351

Hi Helge,

On Saturday 17 February 2007 17:21, Helge Deller wrote:
> 
> Can you drop this ^^ piece of this patch ?
> Cyrill V. Gorcunov's (<gorcunov@gmail.com>) HP300 patches from a few days ago
> are more correct since they include the release_region() call. 
> 

I have 2 patches from Cyrill applied to my tree:
 - one from couple days ago dealing with release_region() (2nd version that was
   acked by you)
 - another came to me throughg Andrew and deals with handling errors from
   input_register_device(), request_region(), request_irq() + whitespace cleanup.


> Or, if you want, I can resend this whole patch against your input-tree ?
> Just let me know...
> 

If you could redo the patches against my tree that would be nice - I am having
trouble applying "[PARISC] hp_sdc: fix request_irq()/free_irq() parameters"

Btw, is there any chance we coudl fix the code style in hil drivers. They are
very different from the rest of the kernel. Something like patch below...
 
-- 
Dmitry


Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---

 drivers/input/serio/hil_mlc.c |  381 +++++++++++++++++++++++++-----------------
 1 files changed, 228 insertions(+), 153 deletions(-)

Index: work/drivers/input/serio/hil_mlc.c
===================================================================
--- work.orig/drivers/input/serio/hil_mlc.c
+++ work/drivers/input/serio/hil_mlc.c
@@ -32,11 +32,11 @@
  *
  *	Driver theory of operation:
  *
- *	Some access methods and an ISR is defined by the sub-driver 
- *	(e.g. hp_sdc_mlc.c).  These methods are expected to provide a 
- *	few bits of logic in addition to raw access to the HIL MLC, 
- *	specifically, the ISR, which is entirely registered by the 
- *	sub-driver and invoked directly, must check for record 
+ *	Some access methods and an ISR is defined by the sub-driver
+ *	(e.g. hp_sdc_mlc.c).  These methods are expected to provide a
+ *	few bits of logic in addition to raw access to the HIL MLC,
+ *	specifically, the ISR, which is entirely registered by the
+ *	sub-driver and invoked directly, must check for record
  *	termination or packet match, at which point a semaphore must
  *	be cleared and then the hil_mlcs_tasklet must be scheduled.
  *
@@ -47,7 +47,7 @@
  *	itself if output is pending.  (This rescheduling should be replaced
  *	at some point with a sub-driver-specific mechanism.)
  *
- *	A timer task prods the tasklet once per second to prevent 
+ *	A timer task prods the tasklet once per second to prevent
  *	hangups when attached devices do not return expected data
  *	and to initiate probes of the loop for new devices.
  */
@@ -83,69 +83,86 @@ DECLARE_TASKLET_DISABLED(hil_mlcs_taskle
 
 /********************** Device info/instance management **********************/
 
-static void hil_mlc_clear_di_map (hil_mlc *mlc, int val) {
+static void hil_mlc_clear_di_map(hil_mlc *mlc, int val)
+{
 	int j;
-	for (j = val; j < 7 ; j++) {
+
+	for (j = val; j < 7 ; j++)
 		mlc->di_map[j] = -1;
-	}
 }
 
-static void hil_mlc_clear_di_scratch (hil_mlc *mlc) {
-	memset(&(mlc->di_scratch), 0, sizeof(mlc->di_scratch));
+static void hil_mlc_clear_di_scratch(hil_mlc *mlc)
+{
+	memset(&mlc->di_scratch, 0, sizeof(mlc->di_scratch));
 }
 
-static void hil_mlc_copy_di_scratch (hil_mlc *mlc, int idx) {
-	memcpy(&(mlc->di[idx]), &(mlc->di_scratch), sizeof(mlc->di_scratch));
+static void hil_mlc_copy_di_scratch(hil_mlc *mlc, int idx)
+{
+	memcpy(&mlc->di[idx], &mlc->di_scratch, sizeof(mlc->di_scratch));
 }
 
-static int hil_mlc_match_di_scratch (hil_mlc *mlc) {
+static int hil_mlc_match_di_scratch(hil_mlc *mlc)
+{
 	int idx;
 
 	for (idx = 0; idx < HIL_MLC_DEVMEM; idx++) {
-		int j, found;
+		int j, found = 0;
 
 		/* In-use slots are not eligible. */
-		found = 0;
-		for (j = 0; j < 7 ; j++) {
-			if (mlc->di_map[j] == idx) found++;
-		}
-		if (found) continue;
-		if (!memcmp(mlc->di + idx, 
-			    &(mlc->di_scratch), 
-			    sizeof(mlc->di_scratch))) break;
+		for (j = 0; j < 7 ; j++)
+			if (mlc->di_map[j] == idx)
+				found++;
+
+		if (found)
+			continue;
+
+		if (!memcmp(mlc->di + idx, &mlc->di_scratch,
+			    sizeof(mlc->di_scratch)))
+			break;
 	}
-	return((idx >= HIL_MLC_DEVMEM) ? -1 : idx);
+
+	return idx >= HIL_MLC_DEVMEM ? -1 : idx;
 }
 
-static int hil_mlc_find_free_di(hil_mlc *mlc) {
+static int hil_mlc_find_free_di(hil_mlc *mlc)
+{
 	int idx;
-	/* TODO: Pick all-zero slots first, failing that, 
-	 * randomize the slot picked among those eligible. 
+
+	/* TODO: Pick all-zero slots first, failing that,
+	 * randomize the slot picked among those eligible.
 	 */
 	for (idx = 0; idx < HIL_MLC_DEVMEM; idx++) {
-		int j, found;
-		found = 0;
-		for (j = 0; j < 7 ; j++) {
-			if (mlc->di_map[j] == idx) found++;
-		}
-		if (!found) break;
+		int j, found = 0;
+
+		for (j = 0; j < 7 ; j++)
+			if (mlc->di_map[j] == idx)
+				found++;
+
+		if (!found)
+			break;
 	}
-	return(idx); /* Note: It is guaranteed at least one above will match */
+
+	return idx; /* Note: It is guaranteed at least one above will match */
 }
 
-static inline void hil_mlc_clean_serio_map(hil_mlc *mlc) {
+static inline void hil_mlc_clean_serio_map(hil_mlc *mlc)
+{
 	int idx;
+
 	for (idx = 0; idx < HIL_MLC_DEVMEM; idx++) {
-		int j, found;
-		found = 0;
-		for (j = 0; j < 7 ; j++) {
-			if (mlc->di_map[j] == idx) found++;
-		}
-		if (!found) mlc->serio_map[idx].di_revmap = -1;
+		int j, found = 0;
+
+		for (j = 0; j < 7 ; j++)
+			if (mlc->di_map[j] == idx)
+				found++;
+
+		if (!found)
+			mlc->serio_map[idx].di_revmap = -1;
 	}
 }
 
-static void hil_mlc_send_polls(hil_mlc *mlc) {
+static void hil_mlc_send_polls(hil_mlc *mlc)
+{
 	int did, i, cnt;
 	struct serio *serio;
 	struct serio_driver *drv;
@@ -157,26 +174,31 @@ static void hil_mlc_send_polls(hil_mlc *
 
 	while (mlc->icount < 15 - i) {
 		hil_packet p;
+
 		p = mlc->ipacket[i];
 		if (did != (p & HIL_PKT_ADDR_MASK) >> 8) {
-			if (drv == NULL || drv->interrupt == NULL) goto skip;
+			if (drv && drv->interrupt) {
+				drv->interrupt(serio, 0, 0);
+				drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+				drv->interrupt(serio, HIL_PKT_CMD >> 8,  0);
+				drv->interrupt(serio, HIL_CMD_POL + cnt, 0);
+			}
 
-			drv->interrupt(serio, 0, 0);
-			drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
-			drv->interrupt(serio, HIL_PKT_CMD >> 8,  0);
-			drv->interrupt(serio, HIL_CMD_POL + cnt, 0);
-		skip:
 			did = (p & HIL_PKT_ADDR_MASK) >> 8;
 			serio = did ? mlc->serio[mlc->di_map[did-1]] : NULL;
 			drv = (serio != NULL) ? serio->drv : NULL;
 			cnt = 0;
 		}
-		cnt++; i++;
-		if (drv == NULL || drv->interrupt == NULL) continue;
-		drv->interrupt(serio, (p >> 24), 0);
-		drv->interrupt(serio, (p >> 16) & 0xff, 0);
-		drv->interrupt(serio, (p >> 8) & ~HIL_PKT_ADDR_MASK, 0);
-		drv->interrupt(serio, p & 0xff, 0);
+
+		cnt++;
+		i++;
+
+		if (drv && drv->interrupt) {
+			drv->interrupt(serio, (p >> 24), 0);
+			drv->interrupt(serio, (p >> 16) & 0xff, 0);
+			drv->interrupt(serio, (p >> 8) & ~HIL_PKT_ADDR_MASK, 0);
+			drv->interrupt(serio, p & 0xff, 0);
+		}
 	}
 }
 
@@ -215,8 +237,10 @@ static void hil_mlc_send_polls(hil_mlc *
 #define HILSEN_DOZE	(HILSEN_SAME | HILSEN_SCHED | HILSEN_BREAK)
 #define HILSEN_SLEEP	(HILSEN_SAME | HILSEN_BREAK)
 
-static int hilse_match(hil_mlc *mlc, int unused) {
+static int hilse_match(hil_mlc *mlc, int unused)
+{
 	int rc;
+
 	rc = hil_mlc_match_di_scratch(mlc);
 	if (rc == -1) {
 		rc = hil_mlc_find_free_di(mlc);
@@ -244,21 +268,27 @@ static int hilse_match(hil_mlc *mlc, int
 }
 
 /* An LCV used to prevent runaway loops, forces 5 second sleep when reset. */
-static int hilse_init_lcv(hil_mlc *mlc, int unused) {
+static int hilse_init_lcv(hil_mlc *mlc, int unused)
+{
 	struct timeval tv;
 
 	do_gettimeofday(&tv);
 
-	if(mlc->lcv == 0) goto restart;  /* First init, no need to dally */
-	if(tv.tv_sec - mlc->lcv_tv.tv_sec < 5) return -1;
+	if (mlc->lcv == 0)
+		goto restart;  /* First init, no need to dally */
+	if (tv.tv_sec - mlc->lcv_tv.tv_sec < 5)
+		return -1;
  restart:
 	mlc->lcv_tv = tv;
 	mlc->lcv = 0;
 	return 0;
 }
 
-static int hilse_inc_lcv(hil_mlc *mlc, int lim) {
-	if (mlc->lcv++ >= lim) return -1;
+static int hilse_inc_lcv(hil_mlc *mlc, int lim)
+{
+	if (mlc->lcv++ >= lim)
+		return -1;
+
 	return 0;
 }
 
@@ -270,15 +300,18 @@ static int hilse_set_lcv(hil_mlc *mlc, i
 #endif
 
 /* Management of the discovered device index (zero based, -1 means no devs) */
-static int hilse_set_ddi(hil_mlc *mlc, int val) {
+static int hilse_set_ddi(hil_mlc *mlc, int val)
+{
 	mlc->ddi = val;
 	hil_mlc_clear_di_map(mlc, val + 1);
+
 	return 0;
 }
 
-static int hilse_dec_ddi(hil_mlc *mlc, int unused) {
+static int hilse_dec_ddi(hil_mlc *mlc, int unused)
+{
 	mlc->ddi--;
-	if (mlc->ddi <= -1) { 
+	if (mlc->ddi <= -1) {
 		mlc->ddi = -1;
 		hil_mlc_clear_di_map(mlc, 0);
 		return -1;
@@ -287,7 +320,8 @@ static int hilse_dec_ddi(hil_mlc *mlc, i
 	return 0;
 }
 
-static int hilse_inc_ddi(hil_mlc *mlc, int unused) {
+static int hilse_inc_ddi(hil_mlc *mlc, int unused)
+{
 	if (mlc->ddi >= 6) {
 		BUG();
 		return -1;
@@ -296,37 +330,42 @@ static int hilse_inc_ddi(hil_mlc *mlc, i
 	return 0;
 }
 
-static int hilse_take_idd(hil_mlc *mlc, int unused) {
+static int hilse_take_idd(hil_mlc *mlc, int unused)
+{
 	int i;
 
-	/* Help the state engine: 
-	 * Is this a real IDD response or just an echo? 
+	/* Help the state engine:
+	 * Is this a real IDD response or just an echo?
 	 *
-	 * Real IDD response does not start with a command. 
+	 * Real IDD response does not start with a command.
 	 */
-	if (mlc->ipacket[0] & HIL_PKT_CMD) goto bail;
+	if (mlc->ipacket[0] & HIL_PKT_CMD)
+		goto bail;
 	/* Should have the command echoed further down. */
 	for (i = 1; i < 16; i++) {
-		if (((mlc->ipacket[i] & HIL_PKT_ADDR_MASK) == 
+		if (((mlc->ipacket[i] & HIL_PKT_ADDR_MASK) ==
 		     (mlc->ipacket[0] & HIL_PKT_ADDR_MASK)) &&
-		    (mlc->ipacket[i] & HIL_PKT_CMD) && 
+		    (mlc->ipacket[i] & HIL_PKT_CMD) &&
 		    ((mlc->ipacket[i] & HIL_PKT_DATA_MASK) == HIL_CMD_IDD))
 			break;
 	}
-	if (i > 15) goto bail;
+	if (i > 15)
+		goto bail;
 	/* And the rest of the packets should still be clear. */
-	while (++i < 16) {
-		if (mlc->ipacket[i]) break;
-	}
-	if (i < 16) goto bail;
+	while (++i < 16)
+		if (mlc->ipacket[i])
+			break;
+
+	if (i < 16)
+		goto bail;
 	for (i = 0; i < 16; i++) {
-		mlc->di_scratch.idd[i] = 
+		mlc->di_scratch.idd[i] =
 			mlc->ipacket[i] & HIL_PKT_DATA_MASK;
 	}
 	/* Next step is to see if RSC supported */
-	if (mlc->di_scratch.idd[1] & HIL_IDD_HEADER_RSC) 
+	if (mlc->di_scratch.idd[1] & HIL_IDD_HEADER_RSC)
 		return HILSEN_NEXT;
-	if (mlc->di_scratch.idd[1] & HIL_IDD_HEADER_EXD) 
+	if (mlc->di_scratch.idd[1] & HIL_IDD_HEADER_EXD)
 		return HILSEN_DOWN | 4;
 	return 0;
  bail:
@@ -334,56 +373,61 @@ static int hilse_take_idd(hil_mlc *mlc, 
 	return -1; /* This should send us off to ACF */
 }
 
-static int hilse_take_rsc(hil_mlc *mlc, int unused) {
+static int hilse_take_rsc(hil_mlc *mlc, int unused)
+{
 	int i;
 
 	for (i = 0; i < 16; i++) {
-		mlc->di_scratch.rsc[i] = 
+		mlc->di_scratch.rsc[i] =
 			mlc->ipacket[i] & HIL_PKT_DATA_MASK;
 	}
 	/* Next step is to see if EXD supported (IDD has already been read) */
-	if (mlc->di_scratch.idd[1] & HIL_IDD_HEADER_EXD) 
+	if (mlc->di_scratch.idd[1] & HIL_IDD_HEADER_EXD)
 		return HILSEN_NEXT;
 	return 0;
 }
 
-static int hilse_take_exd(hil_mlc *mlc, int unused) {
+static int hilse_take_exd(hil_mlc *mlc, int unused)
+{
 	int i;
 
 	for (i = 0; i < 16; i++) {
-		mlc->di_scratch.exd[i] = 
+		mlc->di_scratch.exd[i] =
 			mlc->ipacket[i] & HIL_PKT_DATA_MASK;
 	}
 	/* Next step is to see if RNM supported. */
-	if (mlc->di_scratch.exd[0] & HIL_EXD_HEADER_RNM) 
+	if (mlc->di_scratch.exd[0] & HIL_EXD_HEADER_RNM)
 		return HILSEN_NEXT;
+
 	return 0;
 }
-
-static int hilse_take_rnm(hil_mlc *mlc, int unused) {
+static int hilse_take_rnm(hil_mlc *mlc, int unused)
+{
 	int i;
+	char nam[17];
 
-	for (i = 0; i < 16; i++) {
-		mlc->di_scratch.rnm[i] = 
+	for (i = 0; i < 16; i++)
+		mlc->di_scratch.rnm[i] =
 			mlc->ipacket[i] & HIL_PKT_DATA_MASK;
-	}
-	do {
-	  char nam[17];
-	  snprintf(nam, 16, "%s", mlc->di_scratch.rnm);
-	  nam[16] = '\0';
-	  printk(KERN_INFO PREFIX "Device name gotten: %s\n", nam);
-	} while (0);
+
+	snprintf(nam, 16, "%s", mlc->di_scratch.rnm);
+	nam[16] = '\0';
+	printk(KERN_INFO PREFIX "Device name gotten: %s\n", nam);
+
 	return 0;
 }
 
-static int hilse_operate(hil_mlc *mlc, int repoll) { 
+static int hilse_operate(hil_mlc *mlc, int repoll)
+{
 
-	if (mlc->opercnt == 0) hil_mlcs_probe = 0;
+	if (mlc->opercnt == 0)
+		hil_mlcs_probe = 0;
 	mlc->opercnt = 1;
 
 	hil_mlc_send_polls(mlc);
 
-	if (!hil_mlcs_probe) return 0;
+	if (!hil_mlcs_probe)
+		return 0;
 	hil_mlcs_probe = 0;
 	mlc->opercnt = 0;
 	return 1;
@@ -428,7 +472,7 @@ struct hilse_node hil_mlc_se[HILSEN_END]
 	EXPECT(HIL_ERR_INT | TEST_PACKET(0xa),
 	       2000,		HILSEN_NEXT,	HILSEN_RESTART,	HILSEN_RESTART)
 	OUT(HIL_CTRL_ONLY | 0)			/* Disable test mode */
-	
+
 	/* 9  HILSEN_DHR */
 	FUNC(hilse_init_lcv, 0,	HILSEN_NEXT,	HILSEN_SLEEP,	0)
 
@@ -439,7 +483,7 @@ struct hilse_node hil_mlc_se[HILSEN_END]
 	IN(300000,		HILSEN_DHR2,	HILSEN_DHR2,	HILSEN_NEXT)
 
 	/* 14 HILSEN_IFC */
-  	OUT(HIL_PKT_CMD | HIL_CMD_IFC)
+	OUT(HIL_PKT_CMD | HIL_CMD_IFC)
 	EXPECT(HIL_PKT_CMD | HIL_CMD_IFC | HIL_ERR_INT,
 	       20000,		HILSEN_DISC,	HILSEN_DHR2,	HILSEN_NEXT )
 
@@ -455,7 +499,7 @@ struct hilse_node hil_mlc_se[HILSEN_END]
 
 	/* 18 HILSEN_HEAL */
 	OUT_LAST(HIL_CMD_ELB)
-	EXPECT_LAST(HIL_CMD_ELB | HIL_ERR_INT, 
+	EXPECT_LAST(HIL_CMD_ELB | HIL_ERR_INT,
 		    20000,	HILSEN_REPOLL,	HILSEN_DSR,	HILSEN_NEXT)
 	FUNC(hilse_dec_ddi, 0,	HILSEN_HEAL,	HILSEN_NEXT,	0)
 
@@ -503,7 +547,7 @@ struct hilse_node hil_mlc_se[HILSEN_END]
 
 	/* 44 HILSEN_PROBE */
 	OUT_LAST(HIL_PKT_CMD | HIL_CMD_EPT)
-	IN(10000, 		HILSEN_DISC,	HILSEN_DSR,	HILSEN_NEXT)
+	IN(10000,		HILSEN_DISC,	HILSEN_DSR,	HILSEN_NEXT)
 	OUT_DISC(HIL_PKT_CMD | HIL_CMD_ELB)
 	IN(10000,		HILSEN_DISC,	HILSEN_DSR,	HILSEN_NEXT)
 	OUT(HIL_PKT_CMD | HIL_CMD_ACF | 1)
@@ -514,7 +558,7 @@ struct hilse_node hil_mlc_se[HILSEN_END]
 	/* 52 HILSEN_DSR */
 	FUNC(hilse_set_ddi, -1,	HILSEN_NEXT,	0,		0)
 	OUT(HIL_PKT_CMD | HIL_CMD_DSR)
-	IN(20000, 		HILSEN_DHR,	HILSEN_DHR,	HILSEN_IFC)
+	IN(20000,		HILSEN_DHR,	HILSEN_DHR,	HILSEN_IFC)
 
 	/* 55 HILSEN_REPOLL */
 	OUT(HIL_PKT_CMD | HIL_CMD_RPL)
@@ -523,14 +567,15 @@ struct hilse_node hil_mlc_se[HILSEN_END]
 	FUNC(hilse_operate, 1,	HILSEN_OPERATE,	HILSEN_IFC,	HILSEN_PROBE)
 
 	/* 58 HILSEN_IFCACF */
-  	OUT(HIL_PKT_CMD | HIL_CMD_IFC)
+	OUT(HIL_PKT_CMD | HIL_CMD_IFC)
 	EXPECT(HIL_PKT_CMD | HIL_CMD_IFC | HIL_ERR_INT,
 	       20000,		HILSEN_ACF2,	HILSEN_DHR2,	HILSEN_HEAL)
 
 	/* 60 HILSEN_END */
 };
 
-static inline void hilse_setup_input(hil_mlc *mlc, struct hilse_node *node) {
+static inline void hilse_setup_input(hil_mlc *mlc, struct hilse_node *node)
+{
 
 	switch (node->act) {
 	case HILSE_EXPECT_DISC:
@@ -556,8 +601,6 @@ static inline void hilse_setup_input(hil
 	mlc->icount = 15;
 	memset(mlc->ipacket, 0, 16 * sizeof(hil_packet));
 	BUG_ON(down_trylock(&(mlc->isem)));
-
-	return;
 }
 
 #ifdef HIL_MLC_DEBUG
@@ -566,15 +609,18 @@ static int seidx; /* For debug */
 static int kick = 1;
 #endif
 
-static int hilse_donode (hil_mlc *mlc) {
+static int hilse_donode (hil_mlc *mlc)
+{
 	struct hilse_node *node;
 	int nextidx = 0;
 	int sched_long = 0;
 	unsigned long flags;
 
 #ifdef HIL_MLC_DEBUG
-	if (mlc->seidx && (mlc->seidx != seidx)  && mlc->seidx != 41 && mlc->seidx != 42 && mlc->seidx != 43) {
-	  printk(KERN_DEBUG PREFIX "z%i \n%s {%i}", doze, kick ? "K" : "", mlc->seidx);
+	if (mlc->seidx && mlc->seidx != seidx &&
+	    mlc->seidx != 41 && mlc->seidx != 42 && mlc->seidx != 43) {
+		printk(KERN_DEBUG PREFIX "z%i \n%s {%i}",
+			doze, kick ? "K" : "", mlc->seidx);
 		doze = 0;
 	}
 	kick = 0;
@@ -588,12 +634,15 @@ static int hilse_donode (hil_mlc *mlc) {
 		hil_packet pack;
 
 	case HILSE_FUNC:
-		if (node->object.func == NULL) break;
+		if (node->object.func == NULL)
+			break;
 		rc = node->object.func(mlc, node->arg);
-		nextidx = (rc > 0) ? node->ugly : 
+		nextidx = (rc > 0) ? node->ugly :
 			((rc < 0) ? node->bad : node->good);
-		if (nextidx == HILSEN_FOLLOW) nextidx = rc;
+		if (nextidx == HILSEN_FOLLOW)
+			nextidx = rc;
 		break;
+
 	case HILSE_EXPECT_LAST:
 	case HILSE_EXPECT_DISC:
 	case HILSE_EXPECT:
@@ -607,33 +656,40 @@ static int hilse_donode (hil_mlc *mlc) {
 			write_unlock_irqrestore(&(mlc->lock), flags);
 			break;
 		}
-		if (rc == 1)		nextidx = node->ugly;
-		else if (rc == 0)	nextidx = node->good;
-		else			nextidx = node->bad;
+		if (rc == 1)
+			nextidx = node->ugly;
+		else if (rc == 0)
+			nextidx = node->good;
+		else
+			nextidx = node->bad;
 		mlc->istarted = 0;
 		write_unlock_irqrestore(&(mlc->lock), flags);
 		break;
+
 	case HILSE_OUT_LAST:
 		write_lock_irqsave(&(mlc->lock), flags);
 		pack = node->object.packet;
 		pack |= ((mlc->ddi + 1) << HIL_PKT_ADDR_SHIFT);
 		goto out;
+
 	case HILSE_OUT_DISC:
 		write_lock_irqsave(&(mlc->lock), flags);
 		pack = node->object.packet;
 		pack |= ((mlc->ddi + 2) << HIL_PKT_ADDR_SHIFT);
 		goto out;
+
 	case HILSE_OUT:
-		write_lock_irqsave(&(mlc->lock), flags);
+		write_lock_irqsave(&mlc->lock, flags);
 		pack = node->object.packet;
 	out:
-		if (mlc->istarted) goto out2;
+		if (mlc->istarted)
+			goto out2;
 		/* Prepare to receive input */
 		if ((node + 1)->act & HILSE_IN)
 			hilse_setup_input(mlc, node + 1);
 
 	out2:
-		write_unlock_irqrestore(&(mlc->lock), flags);
+		write_unlock_irqrestore(&mlc->lock, flags);
 
 		if (down_trylock(&mlc->osem)) {
 			nextidx = HILSEN_DOZE;
@@ -641,8 +697,8 @@ static int hilse_donode (hil_mlc *mlc) {
 		}
 		up(&mlc->osem);
 
-		write_lock_irqsave(&(mlc->lock), flags);
-		if (!(mlc->ostarted)) {
+		write_lock_irqsave(&mlc->lock, flags);
+		if (!mlc->ostarted) {
 			mlc->ostarted = 1;
 			mlc->opacket = pack;
 			mlc->out(mlc);
@@ -651,13 +707,15 @@ static int hilse_donode (hil_mlc *mlc) {
 			break;
 		}
 		mlc->ostarted = 0;
-		do_gettimeofday(&(mlc->instart));
-		write_unlock_irqrestore(&(mlc->lock), flags);
+		do_gettimeofday(&mlc->instart);
+		write_unlock_irqrestore(&mlc->lock, flags);
 		nextidx = HILSEN_NEXT;
 		break;
+
 	case HILSE_CTS:
 		nextidx = mlc->cts(mlc) ? node->bad : node->good;
 		break;
+
 	default:
 		BUG();
 		nextidx = 0;
@@ -665,36 +723,47 @@ static int hilse_donode (hil_mlc *mlc) {
 	}
 
 #ifdef HIL_MLC_DEBUG
-	if (nextidx == HILSEN_DOZE) doze++;
+	if (nextidx == HILSEN_DOZE)
+		doze++;
 #endif
 
 	while (nextidx & HILSEN_SCHED) {
 		struct timeval tv;
 
-		if (!sched_long) goto sched;
+		if (!sched_long)
+			goto sched;
 
 		do_gettimeofday(&tv);
 		tv.tv_usec += 1000000 * (tv.tv_sec - mlc->instart.tv_sec);
 		tv.tv_usec -= mlc->instart.tv_usec;
-		if (tv.tv_usec >= mlc->intimeout) goto sched;
+		if (tv.tv_usec >= mlc->intimeout)
+			goto sched;
 		tv.tv_usec = (mlc->intimeout - tv.tv_usec) * HZ / 1000000;
-		if (!tv.tv_usec) goto sched;
+		if (!tv.tv_usec)
+			goto sched;
 		mod_timer(&hil_mlcs_kicker, jiffies + tv.tv_usec);
 		break;
 	sched:
 		tasklet_schedule(&hil_mlcs_tasklet);
 		break;
-	} 
-	if (nextidx & HILSEN_DOWN) mlc->seidx += nextidx & HILSEN_MASK;
-	else if (nextidx & HILSEN_UP) mlc->seidx -= nextidx & HILSEN_MASK;
-	else mlc->seidx = nextidx & HILSEN_MASK;
+	}
+
+	if (nextidx & HILSEN_DOWN)
+		mlc->seidx += nextidx & HILSEN_MASK;
+	else if (nextidx & HILSEN_UP)
+		mlc->seidx -= nextidx & HILSEN_MASK;
+	else
+		mlc->seidx = nextidx & HILSEN_MASK;
+
+	if (nextidx & HILSEN_BREAK)
+		return 1;
 
-	if (nextidx & HILSEN_BREAK)	return 1;
 	return 0;
 }
 
 /******************** tasklet context functions **************************/
-static void hil_mlcs_process(unsigned long unused) {
+static void hil_mlcs_process(unsigned long unused)
+{
 	struct list_head *tmp;
 
 	read_lock(&hil_mlcs_lock);
@@ -702,19 +771,20 @@ static void hil_mlcs_process(unsigned lo
 		struct hil_mlc *mlc = list_entry(tmp, hil_mlc, list);
 		while (hilse_donode(mlc) == 0) {
 #ifdef HIL_MLC_DEBUG
-		  if (mlc->seidx != 41 && 
-		      mlc->seidx != 42 && 
-		      mlc->seidx != 43) 
-		    printk(KERN_DEBUG PREFIX " + ");
+			if (mlc->seidx != 41 &&
+			    mlc->seidx != 42 &&
+			    mlc->seidx != 43)
+				printk(KERN_DEBUG PREFIX " + ");
 #endif
-		};
+		}
 	}
 	read_unlock(&hil_mlcs_lock);
 }
 
 /************************* Keepalive timer task *********************/
 
-void hil_mlcs_timer (unsigned long data) {
+void hil_mlcs_timer (unsigned long data)
+{
 	hil_mlcs_probe = 1;
 	tasklet_schedule(&hil_mlcs_tasklet);
 	/* Re-insert the periodic task. */
@@ -724,7 +794,8 @@ void hil_mlcs_timer (unsigned long data)
 
 /******************** user/kernel context functions **********************/
 
-static int hil_mlc_serio_write(struct serio *serio, unsigned char c) {
+static int hil_mlc_serio_write(struct serio *serio, unsigned char c)
+{
 	struct hil_mlc_serio_map *map;
 	struct hil_mlc *mlc;
 	struct serio_driver *drv;
@@ -740,12 +811,12 @@ static int hil_mlc_serio_write(struct se
 		BUG();
 		return -EIO;
 	}
-	mlc->serio_opacket[map->didx] |= 
+	mlc->serio_opacket[map->didx] |=
 		((hil_packet)c) << (8 * (3 - mlc->serio_oidx[map->didx]));
 
 	if (mlc->serio_oidx[map->didx] >= 3) {
 		/* for now only commands */
-		if (!(mlc->serio_opacket[map->didx] & HIL_PKT_CMD)) 
+		if (!(mlc->serio_opacket[map->didx] & HIL_PKT_CMD))
 			return -EIO;
 		switch (mlc->serio_opacket[map->didx] & HIL_PKT_DATA_MASK) {
 		case HIL_CMD_IDD:
@@ -776,7 +847,8 @@ static int hil_mlc_serio_write(struct se
 		return -EIO;
 	}
 	last = idx + 15;
-	while ((last != idx) && (*last == 0)) last--;
+	while ((last != idx) && (*last == 0))
+		last--;
 
 	while (idx != last) {
 		drv->interrupt(serio, 0, 0);
@@ -789,14 +861,15 @@ static int hil_mlc_serio_write(struct se
 	drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
 	drv->interrupt(serio, HIL_PKT_CMD >> 8, 0);
 	drv->interrupt(serio, *idx, 0);
-	
+
 	mlc->serio_oidx[map->didx] = 0;
 	mlc->serio_opacket[map->didx] = 0;
 
 	return 0;
 }
 
-static int hil_mlc_serio_open(struct serio *serio) {
+static int hil_mlc_serio_open(struct serio *serio)
+{
 	struct hil_mlc_serio_map *map;
 	struct hil_mlc *mlc;
 
@@ -817,7 +890,8 @@ static int hil_mlc_serio_open(struct ser
 	return 0;
 }
 
-static void hil_mlc_serio_close(struct serio *serio) {
+static void hil_mlc_serio_close(struct serio *serio)
+{
 	struct hil_mlc_serio_map *map;
 	struct hil_mlc *mlc;
 
@@ -844,13 +918,13 @@ static struct serio_device_id hil_mlc_se
 	.id = SERIO_ANY,
 };
 
-int hil_mlc_register(hil_mlc *mlc) {
+int hil_mlc_register(hil_mlc *mlc)
+{
 	int i;
         unsigned long flags;
 
-	if (mlc == NULL) {
+	if (mlc == NULL)
 		return -EINVAL;
-	}
 
 	mlc->istarted = 0;
         mlc->ostarted = 0;
@@ -897,7 +971,8 @@ int hil_mlc_register(hil_mlc *mlc) {
 	return 0;
 }
 
-int hil_mlc_unregister(hil_mlc *mlc) {
+int hil_mlc_unregister(hil_mlc *mlc)
+{
 	struct list_head *tmp;
         unsigned long flags;
 	int i;
@@ -942,7 +1017,7 @@ static int __init hil_mlc_init(void)
 
 	return 0;
 }
-                
+
 static void __exit hil_mlc_exit(void)
 {
 	del_timer(&hil_mlcs_kicker);
@@ -950,6 +1025,6 @@ static void __exit hil_mlc_exit(void)
 	tasklet_disable(&hil_mlcs_tasklet);
 	tasklet_kill(&hil_mlcs_tasklet);
 }
-                        
+
 module_init(hil_mlc_init);
 module_exit(hil_mlc_exit);



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> See the same for INIT in /bin/sh.  However, the INIT value of interest
> here is that for /lib/libc.so.6:
> 
> dave@mx3210:~/gnu/gcc-4.3/objdir/hppa-linux/libjava$ readelf -a /lib/libc.so.6|grep INIT
>  0x0000000c (INIT)                       0x1f164
> 
> This was the value at r21 + 4.  This value also isn't an OPD.

After I sent the last message, I realized that I had  misread the bb
condition.  The execution path actually traversed the code to setup an OPD:

(gdb) disass 0x400d7854 0x400d78a4
Dump of assembler code from 0x400d7854 to 0x400d78a4:
0x400d7854 <call_init+344>:     stw r22,-78(sp)
0x400d7858 <call_init+348>:     ldw 2c(r3),r20
0x400d785c <call_init+352>:     ldo -78(sp),r22
0x400d7860 <call_init+356>:     depwi -1,30,1,r22
0x400d7864 <call_init+360>:     ldw 4(r20),ret0
0x400d7868 <call_init+364>:     b,l 0x400d77c4 <call_init+200>,r0
0x400d786c <call_init+368>:     stw ret0,-74(sp)

(gdb) x/2x $sp - 0x78
0xc030ec08:     0x4073b164      0x40df252f
(gdb) p/x $ret0
$1 = 0x40df252f
(gdb) p/x $r20
$2 = 0x4086221c
(gdb) x/2x $r20
0x4086221c <.LC2+84>:   0x00000003      0x40df252f
(gdb) p/x $r3
$3 = 0x400010b0
(gdb) p/x $r3 + 0x2c
$4 = 0x400010dc
(gdb) x/x 0x400010dc
0x400010dc:     0x4086221c

So, the r19 value came from the OPD.  This value was loaded from
memory at 0x400d7864.  The value of r20 used in this insn was loaded
at 0x400d7858.  The values in memory and r20 are consistent.  The
values in memory and ret0 are also consistent.

(gdb) info sharedlib
>>>From        To          Syms Read   Shared Object Library
0x404dda70  0x40508088  Yes         /lib/libncurses.so.5
0x40317e44  0x40318fc0  Yes         /lib/libdl.so.2
0x4073ac50  0x40829a64  Yes         /lib/libc.so.6
0x400cccd0  0x400def18  Yes         /lib/ld.so.1

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: [PARISC] fix uninitialized spinlock in HIL
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On Sunday 18 February 2007, Dmitry Torokhov wrote:
> Hi Helge,
> 
> On Saturday 17 February 2007 17:21, Helge Deller wrote:
> > 
> > Can you drop this ^^ piece of this patch ?
> > Cyrill V. Gorcunov's (<gorcunov@gmail.com>) HP300 patches from a few days ago
> > are more correct since they include the release_region() call. 
> > 
> 
> I have 2 patches from Cyrill applied to my tree:
>  - one from couple days ago dealing with release_region() (2nd version that was
>    acked by you)
>  - another came to me throughg Andrew and deals with handling errors from
>    input_register_device(), request_region(), request_irq() + whitespace cleanup.
> 
> 
> > Or, if you want, I can resend this whole patch against your input-tree ?
> > Just let me know...
> > 
> 
> If you could redo the patches against my tree that would be nice - I am having
> trouble applying "[PARISC] hp_sdc: fix request_irq()/free_irq() parameters"
> 
> Btw, is there any chance we coudl fix the code style in hil drivers. They are
> very different from the rest of the kernel. Something like patch below...

Sure, I'll do both and send you seperate patches soon.

Helge
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Subject: [parisc-linux] Re: [PARISC] fix uninitialized spinlock in HIL
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On Sunday 18 February 2007, Helge Deller wrote:
> On Sunday 18 February 2007, Dmitry Torokhov wrote:
> > If you could redo the patches against my tree that would be nice - I am having
> > trouble applying "[PARISC] hp_sdc: fix request_irq()/free_irq() parameters"
> >
> > Btw, is there any chance we coudl fix the code style in hil drivers. They are
> > very different from the rest of the kernel. Something like patch below...

> Sure, I'll do both and send you seperate patches soon.

Hi Dmitry,

Here is the patch and patchtext for the bugfixes which should cleanly apply to your git tree.
The coding-style cleanups will follow soon as well.
----------
Input: HIL - various fixes for HIL drivers

- mark some structures const or __read_mostly 
- hilkbd.c: fix uninitialized spinlock in HIL keyboard driver
- hil_mlc.c: use USEC_PER_SEC instead of 1000000
- hp_sdc: bugfix for request_irq()/free_irq() parameters, this prevented 
                  multiple load/unload cycles as module

Signed-off-by: Helge Deller <deller@gmx.de>
----------
diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index 7cc9728..779322e 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -51,7 +51,7 @@ MODULE_LICENSE("Dual BSD/GPL");
 
 #define HIL_KBD_SET1_UPBIT 0x01
 #define HIL_KBD_SET1_SHIFT 1
-static unsigned int hil_kbd_set1[HIL_KEYCODES_SET1_TBLSIZE] = 
+static unsigned int hil_kbd_set1[HIL_KEYCODES_SET1_TBLSIZE] __read_mostly = 
 	{ HIL_KEYCODES_SET1 };
 
 #define HIL_KBD_SET2_UPBIT 0x01
@@ -60,10 +60,10 @@ static unsigned int hil_kbd_set1[HIL_KEY
 
 #define HIL_KBD_SET3_UPBIT 0x80
 #define HIL_KBD_SET3_SHIFT 0
-static unsigned int hil_kbd_set3[HIL_KEYCODES_SET3_TBLSIZE] =
+static unsigned int hil_kbd_set3[HIL_KEYCODES_SET3_TBLSIZE] __read_mostly =
 	{ HIL_KEYCODES_SET3 };
 
-static char hil_language[][16] = { HIL_LOCALE_MAP };
+static const char hil_language[][16] = { HIL_LOCALE_MAP };
 
 struct hil_kbd {
 	struct input_dev *dev;
@@ -368,7 +368,7 @@ static struct serio_device_id hil_kbd_id
 	{ 0 }
 };
 
-struct serio_driver hil_kbd_serio_drv = {
+static struct serio_driver hil_kbd_serio_drv = {
 	.driver		= {
 		.name	= "hil_kbd",
 	},
diff --git a/drivers/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
index 4de4dc2..230f5db 100644
--- a/drivers/input/keyboard/hilkbd.c
+++ b/drivers/input/keyboard/hilkbd.c
@@ -3,7 +3,7 @@
  *
  *  Copyright (C) 1998 Philip Blundell <philb@gnu.org>
  *  Copyright (C) 1999 Matthew Wilcox <willy@bofh.ai>
- *  Copyright (C) 1999-2006 Helge Deller <deller@gmx.de>
+ *  Copyright (C) 1999-2007 Helge Deller <deller@gmx.de>
  *
  *  Very basic HP Human Interface Loop (HIL) driver.
  *  This driver handles the keyboard on HP300 (m68k) and on some
@@ -89,7 +89,7 @@ MODULE_LICENSE("GPL v2");
 #define	HIL_READKBDSADR		0xF9
 #define	HIL_WRITEKBDSADR	0xE9
 
-static unsigned int hphilkeyb_keycode[HIL_KEYCODES_SET1_TBLSIZE] =
+static unsigned int hphilkeyb_keycode[HIL_KEYCODES_SET1_TBLSIZE] __read_mostly =
 	{ HIL_KEYCODES_SET1 };
 
 /* HIL structure */
@@ -211,6 +211,7 @@ hil_keyb_init(void)
 		return -ENODEV; /* already initialized */
 	}
 
+	spin_lock_init(&hil_dev.lock);
 	hil_dev.dev = input_allocate_device();
 	if (!hil_dev.dev)
 		return -ENOMEM;
diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index 4fa93ff..0710704 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -408,7 +408,7 @@ static int hilse_operate(hil_mlc *mlc, i
 #define OUT_LAST(pack) \
 { HILSE_OUT_LAST,	{ .packet = pack }, 0, 0, 0, 0 },
 
-struct hilse_node hil_mlc_se[HILSEN_END] = {
+const struct hilse_node hil_mlc_se[HILSEN_END] = {
 
 	/* 0  HILSEN_START */
 	FUNC(hilse_init_lcv, 0,	HILSEN_NEXT,	HILSEN_SLEEP,	0)
@@ -530,7 +530,7 @@ struct hilse_node hil_mlc_se[HILSEN_END]
 	/* 60 HILSEN_END */
 };
 
-static inline void hilse_setup_input(hil_mlc *mlc, struct hilse_node *node) {
+static inline void hilse_setup_input(hil_mlc *mlc, const struct hilse_node *node) {
 
 	switch (node->act) {
 	case HILSE_EXPECT_DISC:
@@ -563,21 +563,19 @@ static inline void hilse_setup_input(hil
 #ifdef HIL_MLC_DEBUG
 static int doze = 0;
 static int seidx; /* For debug */
-static int kick = 1;
 #endif
 
 static int hilse_donode (hil_mlc *mlc) {
-	struct hilse_node *node;
+	const struct hilse_node *node;
 	int nextidx = 0;
 	int sched_long = 0;
 	unsigned long flags;
 
 #ifdef HIL_MLC_DEBUG
 	if (mlc->seidx && (mlc->seidx != seidx)  && mlc->seidx != 41 && mlc->seidx != 42 && mlc->seidx != 43) {
-	  printk(KERN_DEBUG PREFIX "z%i \n%s {%i}", doze, kick ? "K" : "", mlc->seidx);
+	  printk(KERN_DEBUG PREFIX "z%i \n {%i}", doze, mlc->seidx);
 		doze = 0;
 	}
-	kick = 0;
 
 	seidx = mlc->seidx;
 #endif
@@ -588,7 +586,7 @@ static int hilse_donode (hil_mlc *mlc) {
 		hil_packet pack;
 
 	case HILSE_FUNC:
-		if (node->object.func == NULL) break;
+		BUG_ON(node->object.func == NULL);
 		rc = node->object.func(mlc, node->arg);
 		nextidx = (rc > 0) ? node->ugly : 
 			((rc < 0) ? node->bad : node->good);
@@ -674,10 +672,10 @@ static int hilse_donode (hil_mlc *mlc) {
 		if (!sched_long) goto sched;
 
 		do_gettimeofday(&tv);
-		tv.tv_usec += 1000000 * (tv.tv_sec - mlc->instart.tv_sec);
+		tv.tv_usec += USEC_PER_SEC * (tv.tv_sec - mlc->instart.tv_sec);
 		tv.tv_usec -= mlc->instart.tv_usec;
 		if (tv.tv_usec >= mlc->intimeout) goto sched;
-		tv.tv_usec = (mlc->intimeout - tv.tv_usec) * HZ / 1000000;
+		tv.tv_usec = (mlc->intimeout - tv.tv_usec) * HZ / USEC_PER_SEC;
 		if (!tv.tv_usec) goto sched;
 		mod_timer(&hil_mlcs_kicker, jiffies + tv.tv_usec);
 		break;
@@ -837,7 +835,7 @@ static void hil_mlc_serio_close(struct s
 	/* TODO wake up interruptable */
 }
 
-static struct serio_device_id hil_mlc_serio_id = {
+static const struct serio_device_id hil_mlc_serio_id = {
 	.type = SERIO_HIL_MLC,
 	.proto = SERIO_HIL,
 	.extra = SERIO_ANY,
@@ -873,6 +871,8 @@ int hil_mlc_register(hil_mlc *mlc) {
 		hil_mlc_copy_di_scratch(mlc, i);
 		mlc_serio = kzalloc(sizeof(*mlc_serio), GFP_KERNEL);
 		mlc->serio[i] = mlc_serio;
+		snprintf(mlc_serio->name, sizeof(mlc_serio->name)-1, "HIL_SERIO%d", i);
+		snprintf(mlc_serio->phys, sizeof(mlc_serio->phys)-1, "HIL%d", i);
 		mlc_serio->id			= hil_mlc_serio_id;
 		mlc_serio->write		= hil_mlc_serio_write;
 		mlc_serio->open			= hil_mlc_serio_open;
diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index b57370d..353a8a1 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -748,7 +748,7 @@ void hp_sdc_kicker (unsigned long data) 
 
 #if defined(__hppa__)
 
-static struct parisc_device_id hp_sdc_tbl[] = {
+static const struct parisc_device_id hp_sdc_tbl[] = {
 	{
 		.hw_type =	HPHW_FIO, 
 		.hversion_rev =	HVERSION_REV_ANY_ID,
@@ -817,12 +817,12 @@ static int __init hp_sdc_init(void)
 #endif	
 
 	errstr = "IRQ not available for";
-        if(request_irq(hp_sdc.irq, &hp_sdc_isr, 0, "HP SDC",
-		       (void *) hp_sdc.base_io)) goto err1;
+	if (request_irq(hp_sdc.irq, &hp_sdc_isr, IRQF_SHARED|IRQF_SAMPLE_RANDOM,
+		"HP SDC", &hp_sdc)) goto err1;
 
 	errstr = "NMI not available for";
-	if (request_irq(hp_sdc.nmi, &hp_sdc_nmisr, 0, "HP SDC NMI", 
-			(void *) hp_sdc.base_io)) goto err2;
+	if (request_irq(hp_sdc.nmi, &hp_sdc_nmisr, IRQF_SHARED,
+		"HP SDC NMI", &hp_sdc)) goto err2;
 
 	printk(KERN_INFO PREFIX "HP SDC at 0x%p, IRQ %d (NMI IRQ %d)\n", 
 	       (void *)hp_sdc.base_io, hp_sdc.irq, hp_sdc.nmi);
@@ -854,7 +854,7 @@ static int __init hp_sdc_init(void)
 	hp_sdc.dev_err = 0;
 	return 0;
  err2:
-	free_irq(hp_sdc.irq, NULL);
+	free_irq(hp_sdc.irq, &hp_sdc);
  err1:
 	release_region(hp_sdc.data_io, 2);
  err0:
@@ -898,8 +898,8 @@ static void hp_sdc_exit(void)
 	/* Wait until we know this has been processed by the i8042 */
 	hp_sdc_spin_ibf();
 
-	free_irq(hp_sdc.nmi, NULL);
-	free_irq(hp_sdc.irq, NULL);
+	free_irq(hp_sdc.nmi, &hp_sdc);
+	free_irq(hp_sdc.irq, &hp_sdc);
 	write_unlock_irq(&hp_sdc.lock);
 
 	del_timer(&hp_sdc.kicker);
diff --git a/drivers/input/serio/hp_sdc_mlc.c b/drivers/input/serio/hp_sdc_mlc.c
index aa4a8a4..1f131ff 100644
--- a/drivers/input/serio/hp_sdc_mlc.c
+++ b/drivers/input/serio/hp_sdc_mlc.c
@@ -323,11 +323,12 @@ static int __init hp_sdc_mlc_init(void)
 	mlc->in			= &hp_sdc_mlc_in;
 	mlc->out		= &hp_sdc_mlc_out;
 
+	mlc->priv		= &hp_sdc_mlc_priv;
+
 	if (hil_mlc_register(mlc)) {
 		printk(KERN_WARNING PREFIX "Failed to register MLC structure with hil_mlc\n");
 		goto err0;
 	}
-	mlc->priv		= &hp_sdc_mlc_priv;
 
 	if (hp_sdc_request_hil_irq(&hp_sdc_mlc_isr)) {
 		printk(KERN_WARNING PREFIX "Request for raw HIL ISR hook denied\n");
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Xref: news.gmane.org gmane.linux.ports.parisc:24355

> (gdb) p/x $r20
> $2 = 0x4086221c
> (gdb) x/2x $r20
> 0x4086221c <.LC2+84>:   0x00000003      0x40df252f

Comparing the setup of this region of memory in /lib/libc.so.6
to that in a simple testcase, it seems that the value setup for
r19 is somehow wrong.  Surrounding values are similar to what
I see in the simple testcase:

#include <stdlib.h>
int
main ()
{
  exit (0);
}

Testcase:
(gdb) x/16x 0x4046221c
0x4046221c:     0x00000003      0x40465c6c      0x00000002      0x0000147c
0x4046222c:     0x00000014      0x00000007      0x00000017      0x403397cc
0x4046223c:     0x00000007      0x4032d0ac      0x00000008      0x0000c720
0x4046224c:     0x00000009      0x0000000c      0x6ffffffc      0x00010ec0

Segv case:
(gdb) x/16x $r20
0x4086221c <.LC2+84>:   0x00000003      0x40df252f      0x00000002      0x0000147c
0x4086222c <.LC2+100>:  0x00000014      0x00000007      0x00000017      0x407397cc
0x4086223c <.LC2+116>:  0x00000007      0x4072d0ac      0x00000008      0x0000c720
0x4086224c <.LC2+132>:  0x00000009      0x0000000c      0x6ffffffc      0x00010ec0

I think '3' in the preceeding location indicates the erronious value
is a PLTGOT value (i.e., we're looking at part of the relocated dynamic
section in /lib/libc.so.6).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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After a bit more of an analysis of our changesets (I concluded it must
have been something we introduced).  This is the source of the SMP boot
hang on 2.6.20-rcX:

commit 01a9fa750904beed08814364fcbd7039eca8ec71
Author: Randolph <tausq@debian.org>
Date:   Mon Dec 11 16:07:51 2006 -0800

    Optimize TLB flush on SMP systems
    
    Signed-off-by: Randolph Chung <tausq@debian.org>

As predicted, the reason it passed all the tests at the time it was
introduced is that because of the piggin bug, we were only scheduling on
a single CPU, and so the SMP piece of this wasn't truly tested.

Reverting this patch allows ioz to boot correctly.

James


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On 18/02/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> apt works fine from the chroot, but packages that rely on threads are broken.
> Packages relying on pthread_push_cleanup, and pthread_pop_cleanup are
> also broken since we have bugs in those functions according to the
> testsuite.

apt only stopped working for me after I recompiled libstdc++6, but
before I recompiled apt.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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On 18/02/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> On 2/18/07, Jeff Bailey <jbailey@raspberryginger.com> wrote:
> > On 18/02/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> > > apt works fine from the chroot, but packages that rely on threads are broken.
> > > Packages relying on pthread_push_cleanup, and pthread_pop_cleanup are
> > > also broken since we have bugs in those functions according to the
> > > testsuite.
> >
> > apt only stopped working for me after I recompiled libstdc++6, but
> > before I recompiled apt.
>
> That's odd. What do you mean by stopped working?

(sorry for the repeat, I hit reply instead of reply all)

Any apt operation would hang.  apt-cache, apt-get, etc.  I did an
strace on it, but it wasn't in a syscall.  When I recompiled to get
debug symbols, it started working again.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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Subject: Re: [parisc-linux] Re: call_init in libc6 2.3.6.ds1-11
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> On 2/18/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> > To be truthful I don't understand why we rummage around the relocs in
> > elf_machine_runtime_setup, we have the linkmap for the object we are
> > loading, there should be no need to do this.
> 
> I realized later, that DT_PLTGOT is the LTP, and we have no way to ask
> the linkmap the following questions:
> 
> 1. Where is the end of that objects PLT?
> 2. Where is the start of that objects GOT?
> 
> The only way to answer those questions is to look for the last reloc
> in the PLT and match the stub signature.

Is elf_machine_runtime_setup adjusting DT_PLTGOT?

This search seems horrific.  Shouldn't we add DT values for the
above?  There must be OS specific values that could be used.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 18/02/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> On 2/18/07, Jeff Bailey <jbailey@raspberryginger.com> wrote:
> > (sorry for the repeat, I hit reply instead of reply all)
> >
> > Any apt operation would hang.  apt-cache, apt-get, etc.  I did an
> > strace on it, but it wasn't in a syscall.  When I recompiled to get
> > debug symbols, it started working again.
>
> In the future please run gdb, attach to the process and type "bt" so
> that I can get a hint about the program failure. I'm not asking you to
> recreate the scenario, but just reminding you to mine a little more
> data :-)

I remember that it was roughly:

1. ??? ()
2. ??? ()
3. ??? ()
4. ??? ()
(etc.)

=)

no debug symbols were on the system for glibc, libstdc++, or for apt. =)

If it's worth it, I can reproduce the environment by recompiling
things with debugging symbols on Dapper, then doing the upgrades,
making sure all the builds have the symbols they need.  I'm not
certain that I can do this before Sprout is likely to show up because
of the rebuilds, so it's a longer term project.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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On Sun, Feb 18, 2007 at 11:44:13AM -0600, James Bottomley wrote:
> After a bit more of an analysis of our changesets (I concluded it must
> have been something we introduced).  This is the source of the SMP boot
> hang on 2.6.20-rcX:
> 
> commit 01a9fa750904beed08814364fcbd7039eca8ec71
> Author: Randolph <tausq@debian.org>
> Date:   Mon Dec 11 16:07:51 2006 -0800
> 
>     Optimize TLB flush on SMP systems
>     
>     Signed-off-by: Randolph Chung <tausq@debian.org>
> 
> As predicted, the reason it passed all the tests at the time it was
> introduced is that because of the piggin bug, we were only scheduling on
> a single CPU, and so the SMP piece of this wasn't truly tested.
> 
> Reverting this patch allows ioz to boot correctly.
> 

Ok. I'll revert it in the for-linus tree as well.

Any idea what was wrong with it?

Cheers,
	Kyle
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On Sun, 2007-02-18 at 14:32 -0500, Kyle McMartin wrote:
> Any idea what was wrong with it?

Not yet ... the fact that everything goes OK for a while then hangs
implies there's some issue with handling the SID wrap around, but I
can't pinpoint it yet.

James


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On Sunday 18 February 2007, Carlos O'Donell wrote:
> The Glib testsuite tests the installed libglib, so beware that you
> have rebuild the library, install the library, and *then* run the
> tests.

that seems pretty braindead to me ...
-mike

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On Sun, Feb 18, 2007 at 10:11:13PM -0500, Carlos O'Donell wrote:
> >>  #define __NR_Linux_syscalls     298
> 
> You also forgot to update the total syscall count.
> 

I fixed that one for him. ;-)
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Subject: Re: [parisc-linux] The parisc SMP boot problem
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> Reverting this patch allows ioz to boot correctly.

With the patch reverted, I was also able to boot successfully
an SMP kernel on what was ior for the first time ;)

Thanks,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: NPTL for hppa-linux is not backwards compatible
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Cc: debian-glibc@lists.debian.org,
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On 18/02/07, Mike Frysinger <vapier@gentoo.org> wrote:
> if the breakage is just in pthreads, i dont think the libc ABI needs to be
> bumped, just the pthread one ?  libc provides look ahead stub functions for
> pthreads, so it shouldnt be affected by the breakage you've mentioned with
> static lock initializers ...
>
> libpthread.so.0 -> libpthread.so.1

While it's definetly Ubuntu and Debian's problem, not upstream's,
libpthread is bundled in the "libc6" package.  Bumping just the
libpthread version will make packaging hard for those distros.  If
there are other ABI breaking moves that need to be done that would
cause a bump from libc6, doing them now would help sidestep the
problem.

Tks.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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In-Reply-To: <119aab440702181115y47923d8x5a2381ac8290a028@mail.gmail.com> from
	"Carlos O'Donell" at Feb 18, 2007 02:15:35 pm
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> On 2/18/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> > We could add a PROC or OS specific DT_* value to solve this problem.
> > IA64 uses PLT_RESERVE for this specific purpose.
> 
> ... we are all volunteers, and this work would be *icing* on the cake.
> I'm trying to fix pthread_pop/push_cleanup in NPTL right now :-)

Here's another one:

echo ../../../gcc/libjava/classpath/lib/javax/swing/filechooser/*.class > javax/
swing/filechooser.list
/bin/sh: In elf_machine_rela_relative ELF32_R_SYM (reloc->r_info) != 0. Aborting
.make[3]: *** [javax/swing/filechooser.list] Illegal instruction (core dumped)
make[3]: *** Waiting for unfinished jobs....

Core was generated by `/bin/sh -c echo ../../../gcc/libjava/classpath/lib/javax/swing/filechooser/*.cl'.
Program terminated with signal 4, Illegal instruction.
#0  0x402e624c in _dl_relocate_object () from /lib/ld.so.1
(gdb) bt
#0  0x402e624c in _dl_relocate_object () from /lib/ld.so.1
#1  0x402e6248 in _dl_relocate_object () from /lib/ld.so.1
Previous frame identical to this frame (corrupt stack?)
(gdb) disass 0x402e623c 0x402e625c
Dump of assembler code from 0x402e623c to 0x402e625c:
0x402e623c <_dl_relocate_object+564>:   ldw 3c4(r1),r25
0x402e6240 <_dl_relocate_object+568>:   b,l 0x402e96d0 <_dl_dprintf>,rp
0x402e6244 <_dl_relocate_object+572>:   ldi 2,r26
0x402e6248 <_dl_relocate_object+576>:   copy r4,r19
0x402e624c <_dl_relocate_object+580>:   iitlbp r0,(sr0,r0)
0x402e6250 <_dl_relocate_object+584>:   cmpib,= 1,r6,0x402e64a0 <_dl_relocate_object+1176>
0x402e6254 <_dl_relocate_object+588>:   extrw,u r7,31,2,ret0
0x402e6258 <_dl_relocate_object+592>:   cmpib,>> 1,r6,0x402e64ac <_dl_relocate_object+1188>

It really seems like something is randomly messing up memory when shared
libraries are being loaded.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: NPTL for hppa-linux is not backwards compatible
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Cc: libc-ports@sourceware.org,
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Jeff Bailey a écrit :
> On 18/02/07, Mike Frysinger <vapier@gentoo.org> wrote:
>> if the breakage is just in pthreads, i dont think the libc ABI needs to be
>> bumped, just the pthread one ?  libc provides look ahead stub functions for
>> pthreads, so it shouldnt be affected by the breakage you've mentioned with
>> static lock initializers ...
>>
>> libpthread.so.0 -> libpthread.so.1
> 
> While it's definetly Ubuntu and Debian's problem, not upstream's,
> libpthread is bundled in the "libc6" package.  Bumping just the
> libpthread version will make packaging hard for those distros.  If
> there are other ABI breaking moves that need to be done that would
> cause a bump from libc6, doing them now would help sidestep the
> problem.

Well I am thinking in splitting out libpthread.so.X from the libc6
package if the ABI breakage is confirmed. This is still a very
complicated transition, but I think far less packages are affected.

I am a bit busy right now, but I think we should put our transition
ideas (at least for Debian, and probably Ubuntu) on a wiki, for example
http://wiki.debian.org/HppaNptlTransition

Bye,
Aurelien

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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On 19/02/07, Aurelien Jarno <aurelien@aurel32.net> wrote:
> >> if the breakage is just in pthreads, i dont think the libc ABI needs to be
> >> bumped, just the pthread one ?  libc provides look ahead stub functions for
> >> pthreads, so it shouldnt be affected by the breakage you've mentioned with
> >> static lock initializers ...
> >>
> >> libpthread.so.0 -> libpthread.so.1
> >
> > While it's definetly Ubuntu and Debian's problem, not upstream's,
> > libpthread is bundled in the "libc6" package.  Bumping just the
> > libpthread version will make packaging hard for those distros.  If
> > there are other ABI breaking moves that need to be done that would
> > cause a bump from libc6, doing them now would help sidestep the
> > problem.
>
> Well I am thinking in splitting out libpthread.so.X from the libc6
> package if the ABI breakage is confirmed. This is still a very
> complicated transition, but I think far less packages are affected.

Well, the ABI breakage is confirmed.  I just remember people siting
some other corner case problems with the ABI they wanted to change.
Now would be a great time to change it all over if we need to do this.

> I am a bit busy right now, but I think we should put our transition
> ideas (at least for Debian, and probably Ubuntu) on a wiki, for example
> http://wiki.debian.org/HppaNptlTransition

Sounds good.  I've added doko to the cc: list.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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Jeff Bailey a écrit :
> On 19/02/07, Aurelien Jarno <aurelien@aurel32.net> wrote:
>>>> if the breakage is just in pthreads, i dont think the libc ABI needs to be
>>>> bumped, just the pthread one ?  libc provides look ahead stub functions for
>>>> pthreads, so it shouldnt be affected by the breakage you've mentioned with
>>>> static lock initializers ...
>>>>
>>>> libpthread.so.0 -> libpthread.so.1
>>> While it's definetly Ubuntu and Debian's problem, not upstream's,
>>> libpthread is bundled in the "libc6" package.  Bumping just the
>>> libpthread version will make packaging hard for those distros.  If
>>> there are other ABI breaking moves that need to be done that would
>>> cause a bump from libc6, doing them now would help sidestep the
>>> problem.
>> Well I am thinking in splitting out libpthread.so.X from the libc6
>> package if the ABI breakage is confirmed. This is still a very
>> complicated transition, but I think far less packages are affected.
> 
> Well, the ABI breakage is confirmed.  I just remember people siting
> some other corner case problems with the ABI they wanted to change.
> Now would be a great time to change it all over if we need to do this.

You mean on hppa? Do you remember the proposed changes, or the people
wanted to change that?

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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Subject: Re: [parisc-linux] Re: call_init in libc6 2.3.6.ds1-11
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> What hardware are you using?

This is pa8800 (Mako) at 800 MHz.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Dmitry Torokhov <dtor@insightbb.com>
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Subject: [parisc-linux] Re: [PARISC] input: queued patches from parisc-linux
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Hi Kyle,

On Saturday 17 February 2007 15:55, Kyle McMartin wrote:
> 
> Hi Dmitry,
> 
> The following are some patches committed to the input subsystem
> from parisc-linux.
> 
> Apologies if this turns out badly, this is my first time using
> git-send-email...

Thank you for the patches, everything looks pretty good, it would
be even better if subjects had sequence numbers in them so I would
know the order in which they should be applied.

It seems that I already have some of the patches, so I will wait for
Helge to redo them against my tree (see my other e-mail).

-- 
Dmitry
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Subject: [parisc-linux] Re: NPTL for hppa-linux is not backwards compatible
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> NPTL for hppa-linux is not backwards compatible with Linuxthreads, we
> have broken the pthread ABI.

Please elaborate on exactly which types and entrypoints are incompatible.

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Subject: [parisc-linux] Re: NPTL for hppa-linux is not backwards compatible
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On Sunday 18 February 2007, Carlos O'Donell wrote:
> NPTL for hppa-linux is not backwards compatible with Linuxthreads, we
> have broken the pthread ABI.
> <snip>
> It has been recommended that we bump to libc6.1 for NPTL. Is that a
> good idea? Are there any comments about how to make such a transition
> smooth for debian, gentoo, and ubuntu?

if the breakage is just in pthreads, i dont think the libc ABI needs to be=
=20
bumped, just the pthread one ?  libc provides look ahead stub functions for=
=20
pthreads, so it shouldnt be affected by the breakage you've mentioned with=
=20
static lock initializers ...

libpthread.so.0 -> libpthread.so.1
=2Dmike

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Subject: Re: [parisc-linux] Re: NPTL for hppa-linux is not backwards
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On Monday 19 February 2007, Jeff Bailey wrote:
> On 19/02/07, Aurelien Jarno <aurelien@aurel32.net> wrote:
> > >> if the breakage is just in pthreads, i dont think the libc ABI needs to be
> > >> bumped, just the pthread one ?  libc provides look ahead stub functions for
> > >> pthreads, so it shouldnt be affected by the breakage you've mentioned with
> > >> static lock initializers ...
> > >>
> > >> libpthread.so.0 -> libpthread.so.1
> > >
> > > While it's definetly Ubuntu and Debian's problem, not upstream's,
> > > libpthread is bundled in the "libc6" package.  Bumping just the
> > > libpthread version will make packaging hard for those distros.  If
> > > there are other ABI breaking moves that need to be done that would
> > > cause a bump from libc6, doing them now would help sidestep the
> > > problem.
> >
> > Well I am thinking in splitting out libpthread.so.X from the libc6
> > package if the ABI breakage is confirmed. This is still a very
> > complicated transition, but I think far less packages are affected.
> 
> Well, the ABI breakage is confirmed.  I just remember people siting
> some other corner case problems with the ABI they wanted to change.
> Now would be a great time to change it all over if we need to do this.

Maybe relevant:

- [parisc-linux] [PATCH] fix up our compat semaphore operations
   http://lists.parisc-linux.org/pipermail/parisc-linux/2007-January/031125.html
- [parisc-linux] 64-bit long double support.
   http://lists.parisc-linux.org/pipermail/parisc-linux/2006-November/030629.html
- [parisc-linux] [patch] Remove magic constant from gas/tc-hppa.c   Jeff Bailey
   http://lists.parisc-linux.org/pipermail/parisc-linux/2006-October/030417.html
- [parisc-linux] Re: Looking at vfprintf.c and alloca.
   http://lists.parisc-linux.org/pipermail/parisc-linux/2006-July/029607.html 
   (make possible to get ELF64 later?)
- [parisc-linux] Close to mainline for hppa-linux TLS.
   http://lists.parisc-linux.org/pipermail/parisc-linux/2006-May/029171.html
- [parisc-linux] [RFC] using 64bit wide registers with 32bit kernel
   http://lists.parisc-linux.org/pipermail/parisc-linux/2006-May/029050.html
- Bug#364231: [parisc-linux] Re: Bug#364231: exception catching
   http://lists.parisc-linux.org/pipermail/parisc-linux/2006-May/028953.html
   (passing complex types)
- [parisc-linux] ELF ABI Documents
   http://lists.parisc-linux.org/pipermail/parisc-linux/2006-April/028803.html
   (ELF64 ABI?)
   
 
> > I am a bit busy right now, but I think we should put our transition
> > ideas (at least for Debian, and probably Ubuntu) on a wiki, for example
> > http://wiki.debian.org/HppaNptlTransition
> 
> Sounds good.  I've added doko to the cc: list.
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Subject: [parisc-linux] Re: NPTL for hppa-linux is not backwards compatible
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> Do you know of any other ABI breaks that could be coordinated with
> this transition?

No.  The last break was GCC 4.1.0 where the calling convention
for passing complex values was corrected.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Feb 19, 2007 at 11:56:30AM -0500, John David Anglin wrote:
> > What hardware are you using?
> 
> This is pa8800 (Mako) at 800 MHz.
> 

Keep in mind James pointed out that while he fixed the primary source of
corruption, there still might be second-order problems...

John, what's the fastest non-PA8800 machine you have right now? Would a dual
750MHz j6700 help you?

Cheers,
	Kyle M.
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Hi Carlos,

For the NPTL thing, I only built glibc after upgrading glibc so there is no chance I tested the wrong one.

I tested with glib-2.12.7 with the same setup as usual.

The tests that fail here are the following :

PASS: queue-test
GThread-ERROR **: file gthread-posix.c: line 356 (): error 'Cannot allocate memory' during 'pthread_create'
aborting...
/bin/sh: line 4:  5771 Aborted                 srcdir=. LIBCHARSET_ALIAS_DIR=../glib/libcharset MALLOC_CHECK_=2 MALLOC_PERTURB_=$((${RANDOM:-256} % 256)) ${dir}$tst


PASS: thread-test
GThread-ERROR **: file gthread-posix.c: line 356 (): error 'Cannot allocate memory' during 'pthread_create'
aborting...
/bin/sh: line 4:  6173 Aborted                 srcdir=. LIBCHARSET_ALIAS_DIR=../glib/libcharset MALLOC_CHECK_=2 MALLOC_PERTURB_=$((${RANDOM:-256} % 256)) ${dir}$tst



Let me know if you need more info.

  Guy




On Sun, 18 Feb 2007 18:57:15 -0500
"Carlos O'Donell" <carlos@systemhalted.org> wrote:

> Guy,
> 
> I think you may have mentioned that Glib under NPTL was showing more
> failures than with Linuxthreads. I ran the tests myself with the
> following results.
> 
> Linuxthreads:
> check-lt.log:FAIL: closures
> check-lt.log:FAIL: keyfile-test
> check-lt.log:FAIL: run-collate-tests.sh
> 
> NPTL:
> check-nptl.log:FAIL: keyfile-test
> check-nptl.log:FAIL: run-collate-tests.sh
> 
> NPTL fixes the closures failure.
> 
> The Glib testsuite tests the installed libglib, so beware that you
> have rebuild the library, install the library, and *then* run the
> tests.
> 
> Cheers,
> Carlos.


-- 
Guy Martin
Gentoo Linux - HPPA port lead

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> John, what's the fastest non-PA8800 machine you have right now? Would a dual
> 750MHz j6700 help you?

c3750 (875 MHz).  This one is is subject to the thread timing bug.

I'm out of ethernet connections and NRC doesn't like switches, so
I can't easily add new machines.  I could swap out the c3750 for
the j6700.  It would probably would build gcc faster.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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 parisc-linux@lists.parisc-linux.org
To: Dmitry Torokhov <dtor@insightbb.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:24380

Hi Dmitry,
 
This the second (and last) patch which cleanes up the coding-style and it should apply on top of the previous patch I sent you yesterday.

----------
Input: HIL - cleanup coding style
Signed-off-by: Helge Deller <deller@gmx.de>
----------

diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index 1ebab49..6c28c69 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -95,9 +95,11 @@ static void hil_kbd_process_record(struc
 	p = data[idx - 1];
 
 	if ((p & ~HIL_CMDCT_POL) ==
-	    (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL)) goto report;
+	    (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL))
+		goto report;
 	if ((p & ~HIL_CMDCT_RPL) ==
-	    (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_RPL)) goto report;
+	    (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_RPL))
+		goto report;
 
 	/* Not a poll response.  See if we are loading config records. */
 	switch (p & HIL_PKT_DATA_MASK) {
@@ -107,27 +109,32 @@ static void hil_kbd_process_record(struc
 		for (; i < HIL_KBD_MAX_LENGTH; i++)
 			kbd->idd[i] = 0;
 		break;
+
 	case HIL_CMD_RSC:
 		for (i = 0; i < idx; i++)
 			kbd->rsc[i] = kbd->data[i] & HIL_PKT_DATA_MASK;
 		for (; i < HIL_KBD_MAX_LENGTH; i++)
 			kbd->rsc[i] = 0;
 		break;
+
 	case HIL_CMD_EXD:
 		for (i = 0; i < idx; i++)
 			kbd->exd[i] = kbd->data[i] & HIL_PKT_DATA_MASK;
 		for (; i < HIL_KBD_MAX_LENGTH; i++)
 			kbd->exd[i] = 0;
 		break;
+
 	case HIL_CMD_RNM:
 		for (i = 0; i < idx; i++)
 			kbd->rnm[i] = kbd->data[i] & HIL_PKT_DATA_MASK;
 		for (; i < HIL_KBD_MAX_LENGTH + 1; i++)
 			kbd->rnm[i] = '\0';
 		break;
+
 	default:
 		/* These occur when device isn't present */
-		if (p == (HIL_ERR_INT | HIL_PKT_CMD)) break;
+		if (p == (HIL_ERR_INT | HIL_PKT_CMD))
+			break;
 		/* Anything else we'd like to know about. */
 		printk(KERN_WARNING PREFIX "Device sent unknown record %x\n", p);
 		break;
@@ -139,16 +146,19 @@ static void hil_kbd_process_record(struc
 	switch (kbd->data[0] & HIL_POL_CHARTYPE_MASK) {
 	case HIL_POL_CHARTYPE_NONE:
 		break;
+
 	case HIL_POL_CHARTYPE_ASCII:
 		while (cnt < idx - 1)
 			input_report_key(dev, kbd->data[cnt++] & 0x7f, 1);
 		break;
+
 	case HIL_POL_CHARTYPE_RSVD1:
 	case HIL_POL_CHARTYPE_RSVD2:
 	case HIL_POL_CHARTYPE_BINARY:
 		while (cnt < idx - 1)
 			input_report_key(dev, kbd->data[cnt++], 1);
 		break;
+
 	case HIL_POL_CHARTYPE_SET1:
 		while (cnt < idx - 1) {
 			unsigned int key;
@@ -161,6 +171,7 @@ static void hil_kbd_process_record(struc
 				input_report_key(dev, key, !up);
 		}
 		break;
+
 	case HIL_POL_CHARTYPE_SET2:
 		while (cnt < idx - 1) {
 			unsigned int key;
@@ -173,6 +184,7 @@ static void hil_kbd_process_record(struc
 				input_report_key(dev, key, !up);
 		}
 		break;
+
 	case HIL_POL_CHARTYPE_SET3:
 		while (cnt < idx - 1) {
 			unsigned int key;
@@ -191,42 +203,43 @@ static void hil_kbd_process_record(struc
 	up(&kbd->sem);
 }
 
-static void hil_kbd_process_err(struct hil_kbd *kbd) {
+static void hil_kbd_process_err(struct hil_kbd *kbd)
+{
 	printk(KERN_WARNING PREFIX "errored HIL packet\n");
 	kbd->idx4 = 0;
 	up(&kbd->sem);
 }
 
 static irqreturn_t hil_kbd_interrupt(struct serio *serio,
-	      unsigned char data, unsigned int flags)
+				unsigned char data, unsigned int flags)
 {
 	struct hil_kbd *kbd;
 	hil_packet packet;
 	int idx;
 
 	kbd = serio_get_drvdata(serio);
-	if (kbd == NULL) {
-		BUG();
-		return IRQ_HANDLED;
-	}
+	BUG_ON(kbd == NULL);
 
 	if (kbd->idx4 >= (HIL_KBD_MAX_LENGTH * sizeof(hil_packet))) {
 		hil_kbd_process_err(kbd);
 		return IRQ_HANDLED;
 	}
 	idx = kbd->idx4/4;
-	if (!(kbd->idx4 % 4)) kbd->data[idx] = 0;
+	if (!(kbd->idx4 % 4))
+		kbd->data[idx] = 0;
 	packet = kbd->data[idx];
 	packet |= ((hil_packet)data) << ((3 - (kbd->idx4 % 4)) * 8);
 	kbd->data[idx] = packet;
 
 	/* Records of N 4-byte hil_packets must terminate with a command. */
-	if ((++(kbd->idx4)) % 4) return IRQ_HANDLED;
+	if ((++(kbd->idx4)) % 4)
+		return IRQ_HANDLED;
 	if ((packet & 0xffff0000) != HIL_ERR_INT) {
 		hil_kbd_process_err(kbd);
 		return IRQ_HANDLED;
 	}
-	if (packet & HIL_PKT_CMD) hil_kbd_process_record(kbd);
+	if (packet & HIL_PKT_CMD)
+		hil_kbd_process_record(kbd);
 	return IRQ_HANDLED;
 }
 
@@ -235,10 +248,7 @@ static void hil_kbd_disconnect(struct se
 	struct hil_kbd *kbd;
 
 	kbd = serio_get_drvdata(serio);
-	if (kbd == NULL) {
-		BUG();
-		return;
-	}
+	BUG_ON(kbd == NULL);
 
 	serio_close(serio);
 	input_unregister_device(kbd->dev);
@@ -267,34 +277,34 @@ static int hil_kbd_connect(struct serio 
 	serio_set_drvdata(serio, kbd);
 	kbd->serio = serio;
 
-	init_MUTEX_LOCKED(&(kbd->sem));
+	init_MUTEX_LOCKED(&kbd->sem);
 
 	/* Get device info.  MLC driver supplies devid/status/etc. */
 	serio->write(serio, 0);
 	serio->write(serio, 0);
 	serio->write(serio, HIL_PKT_CMD >> 8);
 	serio->write(serio, HIL_CMD_IDD);
-	down(&(kbd->sem));
+	down(&kbd->sem);
 
 	serio->write(serio, 0);
 	serio->write(serio, 0);
 	serio->write(serio, HIL_PKT_CMD >> 8);
 	serio->write(serio, HIL_CMD_RSC);
-	down(&(kbd->sem));
+	down(&kbd->sem);
 
 	serio->write(serio, 0);
 	serio->write(serio, 0);
 	serio->write(serio, HIL_PKT_CMD >> 8);
 	serio->write(serio, HIL_CMD_RNM);
-	down(&(kbd->sem));
+	down(&kbd->sem);
 
 	serio->write(serio, 0);
 	serio->write(serio, 0);
 	serio->write(serio, HIL_PKT_CMD >> 8);
 	serio->write(serio, HIL_CMD_EXD);
-	down(&(kbd->sem));
+	down(&kbd->sem);
 
-	up(&(kbd->sem));
+	up(&kbd->sem);
 
 	did = kbd->idd[0];
 	idd = kbd->idd + 1;
@@ -310,12 +320,11 @@ static int hil_kbd_connect(struct serio 
 		goto bail2;
 	}
 
-	if(HIL_IDD_NUM_BUTTONS(idd) || HIL_IDD_NUM_AXES_PER_SET(*idd)) {
+	if (HIL_IDD_NUM_BUTTONS(idd) || HIL_IDD_NUM_AXES_PER_SET(*idd)) {
 		printk(KERN_INFO PREFIX "keyboards only, no combo devices supported.\n");
 		goto bail2;
 	}
 
-
 	kbd->dev->evbit[0]	= BIT(EV_KEY) | BIT(EV_REP);
 	kbd->dev->ledbit[0]	= BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
 	kbd->dev->keycodemax	= HIL_KEYCODES_SET1_TBLSIZE;
@@ -344,8 +353,8 @@ static int hil_kbd_connect(struct serio 
 	serio->write(serio, 0);
 	serio->write(serio, HIL_PKT_CMD >> 8);
 	serio->write(serio, HIL_CMD_EK1); /* Enable Keyswitch Autorepeat 1 */
-	down(&(kbd->sem));
-	up(&(kbd->sem));
+	down(&kbd->sem);
+	up(&kbd->sem);
 
 	return 0;
  bail2:
@@ -383,11 +392,11 @@ static int __init hil_kbd_init(void)
 {
 	return serio_register_driver(&hil_kbd_serio_drv);
 }
-              
+
 static void __exit hil_kbd_exit(void)
 {
 	serio_unregister_driver(&hil_kbd_serio_drv);
 }
-                      
+
 module_init(hil_kbd_init);
 module_exit(hil_kbd_exit);
diff --git a/drivers/input/mouse/hil_ptr.c b/drivers/input/mouse/hil_ptr.c
index 61bbff9..79977fc 100644
--- a/drivers/input/mouse/hil_ptr.c
+++ b/drivers/input/mouse/hil_ptr.c
@@ -89,9 +89,11 @@ static void hil_ptr_process_record(struc
 	p = data[idx - 1];
 
 	if ((p & ~HIL_CMDCT_POL) ==
-	    (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL)) goto report;
+	    (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL))
+		goto report;
 	if ((p & ~HIL_CMDCT_RPL) ==
-	    (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_RPL)) goto report;
+	    (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_RPL))
+		goto report;
 
 	/* Not a poll response.  See if we are loading config records. */
 	switch (p & HIL_PKT_DATA_MASK) {
@@ -101,27 +103,32 @@ static void hil_ptr_process_record(struc
 		for (; i < HIL_PTR_MAX_LENGTH; i++)
 			ptr->idd[i] = 0;
 		break;
+
 	case HIL_CMD_RSC:
 		for (i = 0; i < idx; i++)
 			ptr->rsc[i] = ptr->data[i] & HIL_PKT_DATA_MASK;
 		for (; i < HIL_PTR_MAX_LENGTH; i++)
 			ptr->rsc[i] = 0;
 		break;
+
 	case HIL_CMD_EXD:
 		for (i = 0; i < idx; i++)
 			ptr->exd[i] = ptr->data[i] & HIL_PKT_DATA_MASK;
 		for (; i < HIL_PTR_MAX_LENGTH; i++)
 			ptr->exd[i] = 0;
 		break;
+
 	case HIL_CMD_RNM:
 		for (i = 0; i < idx; i++)
 			ptr->rnm[i] = ptr->data[i] & HIL_PKT_DATA_MASK;
 		for (; i < HIL_PTR_MAX_LENGTH + 1; i++)
-			ptr->rnm[i] = '\0';
+			ptr->rnm[i] = 0;
 		break;
+
 	default:
 		/* These occur when device isn't present */
-		if (p == (HIL_ERR_INT | HIL_PKT_CMD)) break;
+		if (p == (HIL_ERR_INT | HIL_PKT_CMD))
+			break;
 		/* Anything else we'd like to know about. */
 		printk(KERN_WARNING PREFIX "Device sent unknown record %x\n", p);
 		break;
@@ -130,7 +137,8 @@ static void hil_ptr_process_record(struc
 
  report:
 	if ((p & HIL_CMDCT_POL) != idx - 1) {
-		printk(KERN_WARNING PREFIX "Malformed poll packet %x (idx = %i)\n", p, idx);
+		printk(KERN_WARNING PREFIX
+			"Malformed poll packet %x (idx = %i)\n", p, idx);
 		goto out;
 	}
 
@@ -157,7 +165,8 @@ static void hil_ptr_process_record(struc
 			input_report_abs(dev, ABS_X + i, val);
 		} else {
 			val = (int) (((int8_t)lo) | ((int8_t)hi<<8));
-			if (i%3) val *= -1;
+			if (i%3)
+				val *= -1;
 			input_report_rel(dev, REL_X + i, val);
 		}
 	}
@@ -168,10 +177,11 @@ static void hil_ptr_process_record(struc
 		btn = ptr->data[cnt++];
 		up = btn & 1;
 		btn &= 0xfe;
-		if (btn == 0x8e) {
+		if (btn == 0x8e)
 			continue; /* TODO: proximity == touch? */
-		}
-		else if ((btn > 0x8c) || (btn < 0x80)) continue;
+		else
+			if ((btn > 0x8c) || (btn < 0x80))
+				continue;
 		btn = (btn - 0x80) >> 1;
 		btn = ptr->btnmap[btn];
 		input_report_key(dev, btn, !up);
@@ -182,11 +192,11 @@ static void hil_ptr_process_record(struc
 	up(&ptr->sem);
 }
 
-static void hil_ptr_process_err(struct hil_ptr *ptr) {
+static void hil_ptr_process_err(struct hil_ptr *ptr)
+{
 	printk(KERN_WARNING PREFIX "errored HIL packet\n");
 	ptr->idx4 = 0;
 	up(&ptr->sem);
-	return;
 }
 
 static irqreturn_t hil_ptr_interrupt(struct serio *serio,
@@ -197,29 +207,29 @@ static irqreturn_t hil_ptr_interrupt(str
 	int idx;
 
 	ptr = serio_get_drvdata(serio);
-	if (ptr == NULL) {
-		BUG();
-		return IRQ_HANDLED;
-	}
+	BUG_ON(ptr == NULL);
 
 	if (ptr->idx4 >= (HIL_PTR_MAX_LENGTH * sizeof(hil_packet))) {
 		hil_ptr_process_err(ptr);
 		return IRQ_HANDLED;
 	}
 	idx = ptr->idx4/4;
-	if (!(ptr->idx4 % 4)) ptr->data[idx] = 0;
+	if (!(ptr->idx4 % 4))
+		ptr->data[idx] = 0;
 	packet = ptr->data[idx];
 	packet |= ((hil_packet)data) << ((3 - (ptr->idx4 % 4)) * 8);
 	ptr->data[idx] = packet;
 
 	/* Records of N 4-byte hil_packets must terminate with a command. */
-	if ((++(ptr->idx4)) % 4) return IRQ_HANDLED;
+	if ((++(ptr->idx4)) % 4)
+		return IRQ_HANDLED;
 	if ((packet & 0xffff0000) != HIL_ERR_INT) {
 		hil_ptr_process_err(ptr);
 		return IRQ_HANDLED;
 	}
 	if (packet & HIL_PKT_CMD)
 		hil_ptr_process_record(ptr);
+
 	return IRQ_HANDLED;
 }
 
@@ -228,10 +238,7 @@ static void hil_ptr_disconnect(struct se
 	struct hil_ptr *ptr;
 
 	ptr = serio_get_drvdata(serio);
-	if (ptr == NULL) {
-		BUG();
-		return;
-	}
+	BUG_ON(ptr == NULL);
 
 	serio_close(serio);
 	input_unregister_device(ptr->dev);
@@ -241,7 +248,7 @@ static void hil_ptr_disconnect(struct se
 static int hil_ptr_connect(struct serio *serio, struct serio_driver *driver)
 {
 	struct hil_ptr	 *ptr;
-	char		 *txt;
+	const char	 *txt;
 	unsigned int	 i, naxsets, btntype;
 	uint8_t		 did, *idd;
 
@@ -260,34 +267,34 @@ static int hil_ptr_connect(struct serio 
 	serio_set_drvdata(serio, ptr);
 	ptr->serio = serio;
 
-	init_MUTEX_LOCKED(&(ptr->sem));
+	init_MUTEX_LOCKED(&ptr->sem);
 
 	/* Get device info.  MLC driver supplies devid/status/etc. */
 	serio->write(serio, 0);
 	serio->write(serio, 0);
 	serio->write(serio, HIL_PKT_CMD >> 8);
 	serio->write(serio, HIL_CMD_IDD);
-	down(&(ptr->sem));
+	down(&ptr->sem);
 
 	serio->write(serio, 0);
 	serio->write(serio, 0);
 	serio->write(serio, HIL_PKT_CMD >> 8);
 	serio->write(serio, HIL_CMD_RSC);
-	down(&(ptr->sem));
+	down(&ptr->sem);
 
 	serio->write(serio, 0);
 	serio->write(serio, 0);
 	serio->write(serio, HIL_PKT_CMD >> 8);
 	serio->write(serio, HIL_CMD_RNM);
-	down(&(ptr->sem));
+	down(&ptr->sem);
 
 	serio->write(serio, 0);
 	serio->write(serio, 0);
 	serio->write(serio, HIL_PKT_CMD >> 8);
 	serio->write(serio, HIL_CMD_EXD);
-	down(&(ptr->sem));
+	down(&ptr->sem);
 
-	up(&(ptr->sem));
+	up(&ptr->sem);
 
 	did = ptr->idd[0];
 	idd = ptr->idd + 1;
@@ -301,12 +308,12 @@ static int hil_ptr_connect(struct serio 
 		ptr->dev->evbit[0] = BIT(EV_ABS);
 		txt = "absolute";
 	}
-	if (!ptr->dev->evbit[0]) {
+	if (!ptr->dev->evbit[0])
 		goto bail2;
-	}
 
 	ptr->nbtn = HIL_IDD_NUM_BUTTONS(idd);
-	if (ptr->nbtn) ptr->dev->evbit[0] |= BIT(EV_KEY);
+	if (ptr->nbtn)
+		ptr->dev->evbit[0] |= BIT(EV_KEY);
 
 	naxsets = HIL_IDD_NUM_AXSETS(*idd);
 	ptr->naxes = HIL_IDD_NUM_AXES_PER_SET(*idd);
@@ -341,12 +348,10 @@ static int hil_ptr_connect(struct serio 
 	}
 
 	if ((did & HIL_IDD_DID_TYPE_MASK) == HIL_IDD_DID_TYPE_REL) {
-		for (i = 0; i < ptr->naxes; i++) {
+		for (i = 0; i < ptr->naxes; i++)
 			set_bit(REL_X + i, ptr->dev->relbit);
-		}
-		for (i = 3; (i < ptr->naxes + 3) && (naxsets > 1); i++) {
+		for (i = 3; (i < ptr->naxes + 3) && (naxsets > 1); i++)
 			set_bit(REL_X + i, ptr->dev->relbit);
-		}
 	} else {
 		for (i = 0; i < ptr->naxes; i++) {
 			set_bit(ABS_X + i, ptr->dev->absbit);
diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index 5c3fc23..e45aaab 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -83,69 +83,85 @@ DECLARE_TASKLET_DISABLED(hil_mlcs_taskle
 
 /********************** Device info/instance management **********************/
 
-static void hil_mlc_clear_di_map (hil_mlc *mlc, int val) {
+static void hil_mlc_clear_di_map(hil_mlc *mlc, int val)
+{
 	int j;
-	for (j = val; j < 7 ; j++) {
+
+	for (j = val; j < 7 ; j++)
 		mlc->di_map[j] = -1;
-	}
 }
 
-static void hil_mlc_clear_di_scratch (hil_mlc *mlc) {
-	memset(&(mlc->di_scratch), 0, sizeof(mlc->di_scratch));
+static void hil_mlc_clear_di_scratch(hil_mlc *mlc)
+{
+	memset(&mlc->di_scratch, 0, sizeof(mlc->di_scratch));
 }
 
-static void hil_mlc_copy_di_scratch (hil_mlc *mlc, int idx) {
-	memcpy(&(mlc->di[idx]), &(mlc->di_scratch), sizeof(mlc->di_scratch));
+static void hil_mlc_copy_di_scratch(hil_mlc *mlc, int idx)
+{
+	memcpy(&mlc->di[idx], &mlc->di_scratch, sizeof(mlc->di_scratch));
 }
 
-static int hil_mlc_match_di_scratch (hil_mlc *mlc) {
+static int hil_mlc_match_di_scratch(hil_mlc *mlc)
+{
 	int idx;
 
 	for (idx = 0; idx < HIL_MLC_DEVMEM; idx++) {
-		int j, found;
+		int j, found = 0;
 
 		/* In-use slots are not eligible. */
-		found = 0;
-		for (j = 0; j < 7 ; j++) {
-			if (mlc->di_map[j] == idx) found++;
-		}
-		if (found) continue;
-		if (!memcmp(mlc->di + idx,
-			    &(mlc->di_scratch),
-			    sizeof(mlc->di_scratch))) break;
+		for (j = 0; j < 7 ; j++)
+			if (mlc->di_map[j] == idx)
+				found++;
+
+		if (found)
+			continue;
+
+		if (!memcmp(mlc->di + idx, &mlc->di_scratch,
+				sizeof(mlc->di_scratch)))
+			break;
 	}
-	return((idx >= HIL_MLC_DEVMEM) ? -1 : idx);
+	return idx >= HIL_MLC_DEVMEM ? -1 : idx;
 }
 
-static int hil_mlc_find_free_di(hil_mlc *mlc) {
+static int hil_mlc_find_free_di(hil_mlc *mlc)
+{
 	int idx;
+
 	/* TODO: Pick all-zero slots first, failing that,
 	 * randomize the slot picked among those eligible.
 	 */
 	for (idx = 0; idx < HIL_MLC_DEVMEM; idx++) {
-		int j, found;
-		found = 0;
-		for (j = 0; j < 7 ; j++) {
-			if (mlc->di_map[j] == idx) found++;
-		}
-		if (!found) break;
+		int j, found = 0;
+
+		for (j = 0; j < 7 ; j++)
+			if (mlc->di_map[j] == idx)
+				found++;
+
+		if (!found)
+			break;
 	}
-	return(idx); /* Note: It is guaranteed at least one above will match */
+
+	return idx; /* Note: It is guaranteed at least one above will match */
 }
 
-static inline void hil_mlc_clean_serio_map(hil_mlc *mlc) {
+static inline void hil_mlc_clean_serio_map(hil_mlc *mlc)
+{
 	int idx;
+
 	for (idx = 0; idx < HIL_MLC_DEVMEM; idx++) {
-		int j, found;
-		found = 0;
-		for (j = 0; j < 7 ; j++) {
-			if (mlc->di_map[j] == idx) found++;
-		}
-		if (!found) mlc->serio_map[idx].di_revmap = -1;
+		int j, found = 0;
+
+		for (j = 0; j < 7 ; j++)
+			if (mlc->di_map[j] == idx)
+				found++;
+
+		if (!found)
+			mlc->serio_map[idx].di_revmap = -1;
 	}
 }
 
-static void hil_mlc_send_polls(hil_mlc *mlc) {
+static void hil_mlc_send_polls(hil_mlc *mlc)
+{
 	int did, i, cnt;
 	struct serio *serio;
 	struct serio_driver *drv;
@@ -157,26 +173,31 @@ static void hil_mlc_send_polls(hil_mlc *
 
 	while (mlc->icount < 15 - i) {
 		hil_packet p;
+
 		p = mlc->ipacket[i];
 		if (did != (p & HIL_PKT_ADDR_MASK) >> 8) {
-			if (drv == NULL || drv->interrupt == NULL) goto skip;
+			if (drv && drv->interrupt) {
+				drv->interrupt(serio, 0, 0);
+				drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+				drv->interrupt(serio, HIL_PKT_CMD >> 8,  0);
+				drv->interrupt(serio, HIL_CMD_POL + cnt, 0);
+			}
 
-			drv->interrupt(serio, 0, 0);
-			drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
-			drv->interrupt(serio, HIL_PKT_CMD >> 8,  0);
-			drv->interrupt(serio, HIL_CMD_POL + cnt, 0);
-		skip:
 			did = (p & HIL_PKT_ADDR_MASK) >> 8;
 			serio = did ? mlc->serio[mlc->di_map[did-1]] : NULL;
 			drv = (serio != NULL) ? serio->drv : NULL;
 			cnt = 0;
 		}
-		cnt++; i++;
-		if (drv == NULL || drv->interrupt == NULL) continue;
-		drv->interrupt(serio, (p >> 24), 0);
-		drv->interrupt(serio, (p >> 16) & 0xff, 0);
-		drv->interrupt(serio, (p >> 8) & ~HIL_PKT_ADDR_MASK, 0);
-		drv->interrupt(serio, p & 0xff, 0);
+
+		cnt++;
+		i++;
+
+		if (drv && drv->interrupt) {
+			drv->interrupt(serio, (p >> 24), 0);
+			drv->interrupt(serio, (p >> 16) & 0xff, 0);
+			drv->interrupt(serio, (p >> 8) & ~HIL_PKT_ADDR_MASK, 0);
+			drv->interrupt(serio, p & 0xff, 0);
+		}
 	}
 }
 
@@ -215,12 +236,16 @@ static void hil_mlc_send_polls(hil_mlc *
 #define HILSEN_DOZE	(HILSEN_SAME | HILSEN_SCHED | HILSEN_BREAK)
 #define HILSEN_SLEEP	(HILSEN_SAME | HILSEN_BREAK)
 
-static int hilse_match(hil_mlc *mlc, int unused) {
+static int hilse_match(hil_mlc *mlc, int unused)
+{
 	int rc;
+
 	rc = hil_mlc_match_di_scratch(mlc);
 	if (rc == -1) {
 		rc = hil_mlc_find_free_di(mlc);
-		if (rc == -1) goto err;
+		if (rc == -1)
+			goto err;
+
 #ifdef HIL_MLC_DEBUG
 		printk(KERN_DEBUG PREFIX "new in slot %i\n", rc);
 #endif
@@ -231,6 +256,7 @@ static int hilse_match(hil_mlc *mlc, int
 		serio_rescan(mlc->serio[rc]);
 		return -1;
 	}
+
 	mlc->di_map[mlc->ddi] = rc;
 #ifdef HIL_MLC_DEBUG
 	printk(KERN_DEBUG PREFIX "same in slot %i\n", rc);
@@ -238,45 +264,53 @@ static int hilse_match(hil_mlc *mlc, int
 	mlc->serio_map[rc].di_revmap = mlc->ddi;
 	hil_mlc_clean_serio_map(mlc);
 	return 0;
+
  err:
 	printk(KERN_ERR PREFIX "Residual device slots exhausted, close some serios!\n");
 	return 1;
 }
 
 /* An LCV used to prevent runaway loops, forces 5 second sleep when reset. */
-static int hilse_init_lcv(hil_mlc *mlc, int unused) {
+static int hilse_init_lcv(hil_mlc *mlc, int unused)
+{
 	struct timeval tv;
 
 	do_gettimeofday(&tv);
 
-	if(mlc->lcv == 0) goto restart;  /* First init, no need to dally */
-	if(tv.tv_sec - mlc->lcv_tv.tv_sec < 5) return -1;
- restart:
+	if (mlc->lcv && (tv.tv_sec - mlc->lcv_tv.tv_sec) < 5)
+		return -1;
+
 	mlc->lcv_tv = tv;
 	mlc->lcv = 0;
+
 	return 0;
 }
 
-static int hilse_inc_lcv(hil_mlc *mlc, int lim) {
-	if (mlc->lcv++ >= lim) return -1;
-	return 0;
+static int hilse_inc_lcv(hil_mlc *mlc, int lim)
+{
+	return mlc->lcv++ >= lim ? -1 : 0;
 }
 
 #if 0
-static int hilse_set_lcv(hil_mlc *mlc, int val) {
+static int hilse_set_lcv(hil_mlc *mlc, int val)
+{
 	mlc->lcv = val;
+
 	return 0;
 }
 #endif
 
 /* Management of the discovered device index (zero based, -1 means no devs) */
-static int hilse_set_ddi(hil_mlc *mlc, int val) {
+static int hilse_set_ddi(hil_mlc *mlc, int val)
+{
 	mlc->ddi = val;
 	hil_mlc_clear_di_map(mlc, val + 1);
+
 	return 0;
 }
 
-static int hilse_dec_ddi(hil_mlc *mlc, int unused) {
+static int hilse_dec_ddi(hil_mlc *mlc, int unused)
+{
 	mlc->ddi--;
 	if (mlc->ddi <= -1) {
 		mlc->ddi = -1;
@@ -284,19 +318,20 @@ static int hilse_dec_ddi(hil_mlc *mlc, i
 		return -1;
 	}
 	hil_mlc_clear_di_map(mlc, mlc->ddi + 1);
+
 	return 0;
 }
 
-static int hilse_inc_ddi(hil_mlc *mlc, int unused) {
-	if (mlc->ddi >= 6) {
-		BUG();
-		return -1;
-	}
+static int hilse_inc_ddi(hil_mlc *mlc, int unused)
+{
+	BUG_ON(mlc->ddi >= 6);
 	mlc->ddi++;
+
 	return 0;
 }
 
-static int hilse_take_idd(hil_mlc *mlc, int unused) {
+static int hilse_take_idd(hil_mlc *mlc, int unused)
+{
 	int i;
 
 	/* Help the state engine:
@@ -304,7 +339,9 @@ static int hilse_take_idd(hil_mlc *mlc, 
 	 *
 	 * Real IDD response does not start with a command.
 	 */
-	if (mlc->ipacket[0] & HIL_PKT_CMD) goto bail;
+	if (mlc->ipacket[0] & HIL_PKT_CMD)
+		goto bail;
+
 	/* Should have the command echoed further down. */
 	for (i = 1; i < 16; i++) {
 		if (((mlc->ipacket[i] & HIL_PKT_ADDR_MASK) ==
@@ -313,77 +350,91 @@ static int hilse_take_idd(hil_mlc *mlc, 
 		    ((mlc->ipacket[i] & HIL_PKT_DATA_MASK) == HIL_CMD_IDD))
 			break;
 	}
-	if (i > 15) goto bail;
+	if (i > 15)
+		goto bail;
+
 	/* And the rest of the packets should still be clear. */
-	while (++i < 16) {
-		if (mlc->ipacket[i]) break;
-	}
-	if (i < 16) goto bail;
-	for (i = 0; i < 16; i++) {
+	while (++i < 16)
+		if (mlc->ipacket[i])
+			break;
+
+	if (i < 16)
+		goto bail;
+
+	for (i = 0; i < 16; i++)
 		mlc->di_scratch.idd[i] =
 			mlc->ipacket[i] & HIL_PKT_DATA_MASK;
-	}
+
 	/* Next step is to see if RSC supported */
 	if (mlc->di_scratch.idd[1] & HIL_IDD_HEADER_RSC)
 		return HILSEN_NEXT;
+
 	if (mlc->di_scratch.idd[1] & HIL_IDD_HEADER_EXD)
 		return HILSEN_DOWN | 4;
+
 	return 0;
+
  bail:
 	mlc->ddi--;
+
 	return -1; /* This should send us off to ACF */
 }
 
-static int hilse_take_rsc(hil_mlc *mlc, int unused) {
+static int hilse_take_rsc(hil_mlc *mlc, int unused)
+{
 	int i;
 
-	for (i = 0; i < 16; i++) {
+	for (i = 0; i < 16; i++)
 		mlc->di_scratch.rsc[i] =
 			mlc->ipacket[i] & HIL_PKT_DATA_MASK;
-	}
+
 	/* Next step is to see if EXD supported (IDD has already been read) */
 	if (mlc->di_scratch.idd[1] & HIL_IDD_HEADER_EXD)
 		return HILSEN_NEXT;
+
 	return 0;
 }
 
-static int hilse_take_exd(hil_mlc *mlc, int unused) {
+static int hilse_take_exd(hil_mlc *mlc, int unused)
+{
 	int i;
 
-	for (i = 0; i < 16; i++) {
+	for (i = 0; i < 16; i++)
 		mlc->di_scratch.exd[i] =
 			mlc->ipacket[i] & HIL_PKT_DATA_MASK;
-	}
+
 	/* Next step is to see if RNM supported. */
 	if (mlc->di_scratch.exd[0] & HIL_EXD_HEADER_RNM)
 		return HILSEN_NEXT;
+
 	return 0;
 }
 
-static int hilse_take_rnm(hil_mlc *mlc, int unused) {
+static int hilse_take_rnm(hil_mlc *mlc, int unused)
+{
 	int i;
 
-	for (i = 0; i < 16; i++) {
+	for (i = 0; i < 16; i++)
 		mlc->di_scratch.rnm[i] =
 			mlc->ipacket[i] & HIL_PKT_DATA_MASK;
-	}
-	do {
-	  char nam[17];
-	  snprintf(nam, 16, "%s", mlc->di_scratch.rnm);
-	  nam[16] = '\0';
-	  printk(KERN_INFO PREFIX "Device name gotten: %s\n", nam);
-	} while (0);
+
+	printk(KERN_INFO PREFIX "Device name gotten: %16s\n",
+			mlc->di_scratch.rnm);
+
 	return 0;
 }
 
-static int hilse_operate(hil_mlc *mlc, int repoll) {
+static int hilse_operate(hil_mlc *mlc, int repoll)
+{
 
-	if (mlc->opercnt == 0) hil_mlcs_probe = 0;
+	if (mlc->opercnt == 0)
+		hil_mlcs_probe = 0;
 	mlc->opercnt = 1;
 
 	hil_mlc_send_polls(mlc);
 
-	if (!hil_mlcs_probe) return 0;
+	if (!hil_mlcs_probe)
+		return 0;
 	hil_mlcs_probe = 0;
 	mlc->opercnt = 0;
 	return 1;
@@ -530,7 +581,8 @@ const struct hilse_node hil_mlc_se[HILSE
 	/* 60 HILSEN_END */
 };
 
-static inline void hilse_setup_input(hil_mlc *mlc, const struct hilse_node *node) {
+static inline void hilse_setup_input(hil_mlc *mlc, const struct hilse_node *node)
+{
 
 	switch (node->act) {
 	case HILSE_EXPECT_DISC:
@@ -555,25 +607,25 @@ static inline void hilse_setup_input(hil
 	do_gettimeofday(&(mlc->instart));
 	mlc->icount = 15;
 	memset(mlc->ipacket, 0, 16 * sizeof(hil_packet));
-	BUG_ON(down_trylock(&(mlc->isem)));
-
-	return;
+	BUG_ON(down_trylock(&mlc->isem));
 }
 
 #ifdef HIL_MLC_DEBUG
-static int doze = 0;
+static int doze;
 static int seidx; /* For debug */
 #endif
 
-static int hilse_donode (hil_mlc *mlc) {
+static int hilse_donode(hil_mlc *mlc)
+{
 	const struct hilse_node *node;
 	int nextidx = 0;
 	int sched_long = 0;
 	unsigned long flags;
 
 #ifdef HIL_MLC_DEBUG
-	if (mlc->seidx && (mlc->seidx != seidx)  && mlc->seidx != 41 && mlc->seidx != 42 && mlc->seidx != 43) {
-	  printk(KERN_DEBUG PREFIX "z%i \n {%i}", doze, mlc->seidx);
+	if (mlc->seidx && mlc->seidx != seidx &&
+	    mlc->seidx != 41 && mlc->seidx != 42 && mlc->seidx != 43) {
+		printk(KERN_DEBUG PREFIX "z%i \n {%i}", doze, mlc->seidx);
 		doze = 0;
 	}
 
@@ -590,48 +642,57 @@ static int hilse_donode (hil_mlc *mlc) {
 		rc = node->object.func(mlc, node->arg);
 		nextidx = (rc > 0) ? node->ugly :
 			((rc < 0) ? node->bad : node->good);
-		if (nextidx == HILSEN_FOLLOW) nextidx = rc;
+		if (nextidx == HILSEN_FOLLOW)
+			nextidx = rc;
 		break;
+
 	case HILSE_EXPECT_LAST:
 	case HILSE_EXPECT_DISC:
 	case HILSE_EXPECT:
 	case HILSE_IN:
 		/* Already set up from previous HILSE_OUT_* */
-		write_lock_irqsave(&(mlc->lock), flags);
+		write_lock_irqsave(&mlc->lock, flags);
 		rc = mlc->in(mlc, node->arg);
 		if (rc == 2)  {
 			nextidx = HILSEN_DOZE;
 			sched_long = 1;
-			write_unlock_irqrestore(&(mlc->lock), flags);
+			write_unlock_irqrestore(&mlc->lock, flags);
 			break;
 		}
-		if (rc == 1)		nextidx = node->ugly;
-		else if (rc == 0)	nextidx = node->good;
-		else			nextidx = node->bad;
+		if (rc == 1)
+			nextidx = node->ugly;
+		else if (rc == 0)
+			nextidx = node->good;
+		else
+			nextidx = node->bad;
 		mlc->istarted = 0;
-		write_unlock_irqrestore(&(mlc->lock), flags);
+		write_unlock_irqrestore(&mlc->lock, flags);
 		break;
+
 	case HILSE_OUT_LAST:
-		write_lock_irqsave(&(mlc->lock), flags);
+		write_lock_irqsave(&mlc->lock, flags);
 		pack = node->object.packet;
 		pack |= ((mlc->ddi + 1) << HIL_PKT_ADDR_SHIFT);
 		goto out;
+
 	case HILSE_OUT_DISC:
-		write_lock_irqsave(&(mlc->lock), flags);
+		write_lock_irqsave(&mlc->lock, flags);
 		pack = node->object.packet;
 		pack |= ((mlc->ddi + 2) << HIL_PKT_ADDR_SHIFT);
 		goto out;
+
 	case HILSE_OUT:
-		write_lock_irqsave(&(mlc->lock), flags);
+		write_lock_irqsave(&mlc->lock, flags);
 		pack = node->object.packet;
 	out:
-		if (mlc->istarted) goto out2;
+		if (mlc->istarted)
+			goto out2;
 		/* Prepare to receive input */
 		if ((node + 1)->act & HILSE_IN)
 			hilse_setup_input(mlc, node + 1);
 
 	out2:
-		write_unlock_irqrestore(&(mlc->lock), flags);
+		write_unlock_irqrestore(&mlc->lock, flags);
 
 		if (down_trylock(&mlc->osem)) {
 			nextidx = HILSEN_DOZE;
@@ -639,37 +700,39 @@ static int hilse_donode (hil_mlc *mlc) {
 		}
 		up(&mlc->osem);
 
-		write_lock_irqsave(&(mlc->lock), flags);
-		if (!(mlc->ostarted)) {
+		write_lock_irqsave(&mlc->lock, flags);
+		if (!mlc->ostarted) {
 			mlc->ostarted = 1;
 			mlc->opacket = pack;
 			mlc->out(mlc);
 			nextidx = HILSEN_DOZE;
-			write_unlock_irqrestore(&(mlc->lock), flags);
+			write_unlock_irqrestore(&mlc->lock, flags);
 			break;
 		}
 		mlc->ostarted = 0;
 		do_gettimeofday(&(mlc->instart));
-		write_unlock_irqrestore(&(mlc->lock), flags);
+		write_unlock_irqrestore(&mlc->lock, flags);
 		nextidx = HILSEN_NEXT;
 		break;
+
 	case HILSE_CTS:
 		nextidx = mlc->cts(mlc) ? node->bad : node->good;
 		break;
+
 	default:
 		BUG();
-		nextidx = 0;
-		break;
 	}
 
 #ifdef HIL_MLC_DEBUG
-	if (nextidx == HILSEN_DOZE) doze++;
+	if (nextidx == HILSEN_DOZE)
+		doze++;
 #endif
 
 	while (nextidx & HILSEN_SCHED) {
 		struct timeval tv;
 
-		if (!sched_long) goto sched;
+		if (!sched_long)
+			goto sched;
 
 		do_gettimeofday(&tv);
 		tv.tv_usec += USEC_PER_SEC * (tv.tv_sec - mlc->instart.tv_sec);
@@ -683,16 +746,23 @@ static int hilse_donode (hil_mlc *mlc) {
 		tasklet_schedule(&hil_mlcs_tasklet);
 		break;
 	}
-	if (nextidx & HILSEN_DOWN) mlc->seidx += nextidx & HILSEN_MASK;
-	else if (nextidx & HILSEN_UP) mlc->seidx -= nextidx & HILSEN_MASK;
-	else mlc->seidx = nextidx & HILSEN_MASK;
 
-	if (nextidx & HILSEN_BREAK)	return 1;
+	if (nextidx & HILSEN_DOWN)
+		mlc->seidx += nextidx & HILSEN_MASK;
+	else if (nextidx & HILSEN_UP)
+		mlc->seidx -= nextidx & HILSEN_MASK;
+	else
+		mlc->seidx = nextidx & HILSEN_MASK;
+
+	if (nextidx & HILSEN_BREAK)
+		return 1;
+
 	return 0;
 }
 
 /******************** tasklet context functions **************************/
-static void hil_mlcs_process(unsigned long unused) {
+static void hil_mlcs_process(unsigned long unused)
+{
 	struct list_head *tmp;
 
 	read_lock(&hil_mlcs_lock);
@@ -700,19 +770,20 @@ static void hil_mlcs_process(unsigned lo
 		struct hil_mlc *mlc = list_entry(tmp, hil_mlc, list);
 		while (hilse_donode(mlc) == 0) {
 #ifdef HIL_MLC_DEBUG
-		  if (mlc->seidx != 41 &&
-		      mlc->seidx != 42 &&
-		      mlc->seidx != 43)
-		    printk(KERN_DEBUG PREFIX " + ");
+			if (mlc->seidx != 41 &&
+			    mlc->seidx != 42 &&
+			    mlc->seidx != 43)
+				printk(KERN_DEBUG PREFIX " + ");
 #endif
-		};
+		}
 	}
 	read_unlock(&hil_mlcs_lock);
 }
 
 /************************* Keepalive timer task *********************/
 
-void hil_mlcs_timer (unsigned long data) {
+void hil_mlcs_timer(unsigned long data)
+{
 	hil_mlcs_probe = 1;
 	tasklet_schedule(&hil_mlcs_tasklet);
 	/* Re-insert the periodic task. */
@@ -722,22 +793,19 @@ void hil_mlcs_timer (unsigned long data)
 
 /******************** user/kernel context functions **********************/
 
-static int hil_mlc_serio_write(struct serio *serio, unsigned char c) {
+static int hil_mlc_serio_write(struct serio *serio, unsigned char c)
+{
 	struct hil_mlc_serio_map *map;
 	struct hil_mlc *mlc;
 	struct serio_driver *drv;
 	uint8_t *idx, *last;
 
 	map = serio->port_data;
-	if (map == NULL) {
-		BUG();
-		return -EIO;
-	}
+	BUG_ON(map == NULL);
+
 	mlc = map->mlc;
-	if (mlc == NULL) {
-		BUG();
-		return -EIO;
-	}
+	BUG_ON(mlc == NULL);
+
 	mlc->serio_opacket[map->didx] |=
 		((hil_packet)c) << (8 * (3 - mlc->serio_oidx[map->didx]));
 
@@ -769,12 +837,11 @@ static int hil_mlc_serio_write(struct se
 	return -EIO;
  emu:
 	drv = serio->drv;
-	if (drv == NULL) {
-		BUG();
-		return -EIO;
-	}
+	BUG_ON(drv == NULL);
+
 	last = idx + 15;
-	while ((last != idx) && (*last == 0)) last--;
+	while ((last != idx) && (*last == 0))
+		last--;
 
 	while (idx != last) {
 		drv->interrupt(serio, 0, 0);
@@ -794,7 +861,8 @@ static int hil_mlc_serio_write(struct se
 	return 0;
 }
 
-static int hil_mlc_serio_open(struct serio *serio) {
+static int hil_mlc_serio_open(struct serio *serio)
+{
 	struct hil_mlc_serio_map *map;
 	struct hil_mlc *mlc;
 
@@ -802,33 +870,24 @@ static int hil_mlc_serio_open(struct ser
 		return -EBUSY;
 
 	map = serio->port_data;
-	if (map == NULL) {
-		BUG();
-		return -ENODEV;
-	}
+	BUG_ON(map == NULL);
+
 	mlc = map->mlc;
-	if (mlc == NULL) {
-		BUG();
-		return -ENODEV;
-	}
+	BUG_ON(mlc == NULL);
 
 	return 0;
 }
 
-static void hil_mlc_serio_close(struct serio *serio) {
+static void hil_mlc_serio_close(struct serio *serio)
+{
 	struct hil_mlc_serio_map *map;
 	struct hil_mlc *mlc;
 
 	map = serio->port_data;
-	if (map == NULL) {
-		BUG();
-		return;
-	}
+	BUG_ON(map == NULL);
+
 	mlc = map->mlc;
-	if (mlc == NULL) {
-		BUG();
-		return;
-	}
+	BUG_ON(mlc == NULL);
 
 	serio_set_drvdata(serio, NULL);
 	serio->drv = NULL;
@@ -842,27 +901,26 @@ static const struct serio_device_id hil_
 	.id = SERIO_ANY,
 };
 
-int hil_mlc_register(hil_mlc *mlc) {
+int hil_mlc_register(hil_mlc *mlc)
+{
 	int i;
-        unsigned long flags;
+	unsigned long flags;
 
-	if (mlc == NULL) {
-		return -EINVAL;
-	}
+	BUG_ON(mlc == NULL);
 
 	mlc->istarted = 0;
-        mlc->ostarted = 0;
+	mlc->ostarted = 0;
 
-        rwlock_init(&mlc->lock);
-        init_MUTEX(&(mlc->osem));
+	rwlock_init(&mlc->lock);
+	init_MUTEX(&mlc->osem);
 
-        init_MUTEX(&(mlc->isem));
-        mlc->icount = -1;
-        mlc->imatch = 0;
+	init_MUTEX(&mlc->isem);
+	mlc->icount = -1;
+	mlc->imatch = 0;
 
 	mlc->opercnt = 0;
 
-        init_MUTEX_LOCKED(&(mlc->csem));
+	init_MUTEX_LOCKED(&(mlc->csem));
 
 	hil_mlc_clear_di_scratch(mlc);
 	hil_mlc_clear_di_map(mlc, 0);
@@ -897,19 +955,18 @@ int hil_mlc_register(hil_mlc *mlc) {
 	return 0;
 }
 
-int hil_mlc_unregister(hil_mlc *mlc) {
+int hil_mlc_unregister(hil_mlc *mlc)
+{
 	struct list_head *tmp;
-        unsigned long flags;
+	unsigned long flags;
 	int i;
 
-	if (mlc == NULL)
-		return -EINVAL;
+	BUG_ON(mlc == NULL);
 
 	write_lock_irqsave(&hil_mlcs_lock, flags);
-	list_for_each(tmp, &hil_mlcs) {
+	list_for_each(tmp, &hil_mlcs)
 		if (list_entry(tmp, hil_mlc, list) == mlc)
 			goto found;
-	}
 
 	/* not found in list */
 	write_unlock_irqrestore(&hil_mlcs_lock, flags);
@@ -918,7 +975,7 @@ int hil_mlc_unregister(hil_mlc *mlc) {
 
  found:
 	list_del(tmp);
-        write_unlock_irqrestore(&hil_mlcs_lock, flags);
+	write_unlock_irqrestore(&hil_mlcs_lock, flags);
 
 	for (i = 0; i < HIL_MLC_DEVMEM; i++) {
 		serio_unregister_port(mlc->serio[i]);
@@ -942,7 +999,7 @@ static int __init hil_mlc_init(void)
 
 	return 0;
 }
-         
+
 static void __exit hil_mlc_exit(void)
 {
 	del_timer(&hil_mlcs_kicker);
diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index 37dae19..155f539 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -106,33 +106,39 @@ EXPORT_SYMBOL(hp_sdc_dequeue_transaction
 static hp_i8042_sdc	hp_sdc;	/* All driver state is kept in here. */
 
 /*************** primitives for use in any context *********************/
-static inline uint8_t hp_sdc_status_in8 (void) {
+static inline uint8_t hp_sdc_status_in8(void)
+{
 	uint8_t status;
 	unsigned long flags;
 
 	write_lock_irqsave(&hp_sdc.ibf_lock, flags);
 	status = sdc_readb(hp_sdc.status_io);
-	if (!(status & HP_SDC_STATUS_IBF)) hp_sdc.ibf = 0;
+	if (!(status & HP_SDC_STATUS_IBF))
+		hp_sdc.ibf = 0;
 	write_unlock_irqrestore(&hp_sdc.ibf_lock, flags);
 
 	return status;
 }
 
-static inline uint8_t hp_sdc_data_in8 (void) {
+static inline uint8_t hp_sdc_data_in8(void)
+{
 	return sdc_readb(hp_sdc.data_io);
 }
 
-static inline void hp_sdc_status_out8 (uint8_t val) {
+static inline void hp_sdc_status_out8(uint8_t val)
+{
 	unsigned long flags;
 
 	write_lock_irqsave(&hp_sdc.ibf_lock, flags);
 	hp_sdc.ibf = 1;
-	if ((val & 0xf0) == 0xe0) hp_sdc.wi = 0xff;
+	if ((val & 0xf0) == 0xe0)
+		hp_sdc.wi = 0xff;
 	sdc_writeb(val, hp_sdc.status_io);
 	write_unlock_irqrestore(&hp_sdc.ibf_lock, flags);
 }
 
-static inline void hp_sdc_data_out8 (uint8_t val) {
+static inline void hp_sdc_data_out8(uint8_t val)
+{
 	unsigned long flags;
 
 	write_lock_irqsave(&hp_sdc.ibf_lock, flags);
@@ -145,7 +151,8 @@ static inline void hp_sdc_data_out8 (uin
  *	absolutely needed, or in rarely invoked subroutines.
  *	Not only does it waste CPU cycles, it also wastes bus cycles.
  */
-static inline void hp_sdc_spin_ibf(void) {
+static inline void hp_sdc_spin_ibf(void)
+{
 	unsigned long flags;
 	rwlock_t *lock;
 
@@ -158,14 +165,16 @@ static inline void hp_sdc_spin_ibf(void)
 	}
 	read_unlock(lock);
 	write_lock(lock);
-	while (sdc_readb(hp_sdc.status_io) & HP_SDC_STATUS_IBF) {};
+	while (sdc_readb(hp_sdc.status_io) & HP_SDC_STATUS_IBF)
+		{ }
 	hp_sdc.ibf = 0;
 	write_unlock_irqrestore(lock, flags);
 }
 
 
 /************************ Interrupt context functions ************************/
-static void hp_sdc_take (int irq, void *dev_id, uint8_t status, uint8_t data) {
+static void hp_sdc_take(int irq, void *dev_id, uint8_t status, uint8_t data)
+{
 	hp_sdc_transaction *curr;
 
 	read_lock(&hp_sdc.rtq_lock);
@@ -183,13 +192,14 @@ static void hp_sdc_take (int irq, void *
 
 	if (hp_sdc.rqty <= 0) {
 		/* All data has been gathered. */
-		if(curr->seq[curr->actidx] & HP_SDC_ACT_SEMAPHORE) {
-			if (curr->act.semaphore) up(curr->act.semaphore);
-		}
-		if(curr->seq[curr->actidx] & HP_SDC_ACT_CALLBACK) {
+		if (curr->seq[curr->actidx] & HP_SDC_ACT_SEMAPHORE)
+			if (curr->act.semaphore)
+				up(curr->act.semaphore);
+
+		if (curr->seq[curr->actidx] & HP_SDC_ACT_CALLBACK)
 			if (curr->act.irqhook)
 				curr->act.irqhook(irq, dev_id, status, data);
-		}
+
 		curr->actidx = curr->idx;
 		curr->idx++;
 		/* Return control of this transaction */
@@ -201,7 +211,8 @@ static void hp_sdc_take (int irq, void *
 	}
 }
 
-static irqreturn_t hp_sdc_isr(int irq, void *dev_id) {
+static irqreturn_t hp_sdc_isr(int irq, void *dev_id)
+{
 	uint8_t status, data;
 
 	status = hp_sdc_status_in8();
@@ -209,13 +220,13 @@ static irqreturn_t hp_sdc_isr(int irq, v
 	data =   hp_sdc_data_in8();
 
 	/* For now we are ignoring these until we get the SDC to behave. */
-	if (((status & 0xf1) == 0x51) && data == 0x82) {
-	  return IRQ_HANDLED;
-	}
+	if (((status & 0xf1) == 0x51) && data == 0x82)
+		return IRQ_HANDLED;
 
 	switch(status & HP_SDC_STATUS_IRQMASK) {
 	      case 0: /* This case is not documented. */
 		break;
+
 	      case HP_SDC_STATUS_USERTIMER:
 	      case HP_SDC_STATUS_PERIODIC:
 	      case HP_SDC_STATUS_TIMER:
@@ -224,9 +235,11 @@ static irqreturn_t hp_sdc_isr(int irq, v
 			hp_sdc.timer(irq, dev_id, status, data);
 		read_unlock(&hp_sdc.hook_lock);
 		break;
+
 	      case HP_SDC_STATUS_REG:
 		hp_sdc_take(irq, dev_id, status, data);
 		break;
+
 	      case HP_SDC_STATUS_HILCMD:
 	      case HP_SDC_STATUS_HILDATA:
 		read_lock(&hp_sdc.hook_lock);
@@ -234,13 +247,16 @@ static irqreturn_t hp_sdc_isr(int irq, v
 			hp_sdc.hil(irq, dev_id, status, data);
 		read_unlock(&hp_sdc.hook_lock);
 		break;
+
 	      case HP_SDC_STATUS_PUP:
 		read_lock(&hp_sdc.hook_lock);
 		if (hp_sdc.pup != NULL)
 			hp_sdc.pup(irq, dev_id, status, data);
-		else printk(KERN_INFO PREFIX "HP SDC reports successful PUP.\n");
+		else
+			printk(KERN_INFO PREFIX "HP SDC reports successful PUP.\n");
 		read_unlock(&hp_sdc.hook_lock);
 		break;
+
 	      default:
 		read_lock(&hp_sdc.hook_lock);
 		if (hp_sdc.cooked != NULL)
@@ -248,11 +264,13 @@ static irqreturn_t hp_sdc_isr(int irq, v
 		read_unlock(&hp_sdc.hook_lock);
 		break;
 	}
+
 	return IRQ_HANDLED;
 }
 
 
-static irqreturn_t hp_sdc_nmisr(int irq, void *dev_id) {
+static irqreturn_t hp_sdc_nmisr(int irq, void *dev_id)
+{
 	int status;
 	
 	status = hp_sdc_status_in8();
@@ -264,12 +282,12 @@ static irqreturn_t hp_sdc_nmisr(int irq,
 	      	if (hp_sdc.timer != NULL)
 			hp_sdc.timer(irq, dev_id, status, 0);
 		read_unlock(&hp_sdc.hook_lock);
-	}
-	else {
+	} else {
 		/* TODO: pass this on to the HIL handler, or do SAK here? */
 		printk(KERN_WARNING PREFIX "HIL NMI\n");
 	}
 #endif
+
 	return IRQ_HANDLED;
 }
 
@@ -278,13 +296,17 @@ static irqreturn_t hp_sdc_nmisr(int irq,
 
 unsigned long hp_sdc_put(void);
 
-static void hp_sdc_tasklet(unsigned long foo) {
-
+static void hp_sdc_tasklet(unsigned long foo)
+{
 	write_lock_irq(&hp_sdc.rtq_lock);
+
 	if (hp_sdc.rcurr >= 0) {
 		struct timeval tv;
+
 		do_gettimeofday(&tv);
-		if (tv.tv_sec > hp_sdc.rtv.tv_sec) tv.tv_usec += 1000000;
+		if (tv.tv_sec > hp_sdc.rtv.tv_sec)
+			tv.tv_usec += USEC_PER_SEC;
+
 		if (tv.tv_usec - hp_sdc.rtv.tv_usec > HP_SDC_MAX_REG_DELAY) {
 			hp_sdc_transaction *curr;
 			uint8_t tmp;
@@ -300,17 +322,18 @@ static void hp_sdc_tasklet(unsigned long
 			hp_sdc.rqty = 0;
 			tmp = curr->seq[curr->actidx];
 			curr->seq[curr->actidx] |= HP_SDC_ACT_DEAD;
-			if(tmp & HP_SDC_ACT_SEMAPHORE) {
+			if (tmp & HP_SDC_ACT_SEMAPHORE)
 				if (curr->act.semaphore)
 					up(curr->act.semaphore);
-			}
-			if(tmp & HP_SDC_ACT_CALLBACK) {
+
+			if (tmp & HP_SDC_ACT_CALLBACK) {
 				/* Note this means that irqhooks may be called
 				 * in tasklet/bh context.
 				 */
 				if (curr->act.irqhook)
 					curr->act.irqhook(0, NULL, 0, 0);
 			}
+
 			curr->actidx = curr->idx;
 			curr->idx++;
 			hp_sdc.rcurr = -1;
@@ -320,7 +343,8 @@ static void hp_sdc_tasklet(unsigned long
 	hp_sdc_put();
 }
 
-unsigned long hp_sdc_put(void) {
+unsigned long hp_sdc_put(void)
+{
 	hp_sdc_transaction *curr;
 	uint8_t act;
 	int idx, curridx;
@@ -333,19 +357,24 @@ unsigned long hp_sdc_put(void) {
 	   requires output, so we skip to the administrativa. */
 	if (hp_sdc.ibf) {
 		hp_sdc_status_in8();
-		if (hp_sdc.ibf) goto finish;
+		if (hp_sdc.ibf)
+			goto finish;
 	}
 
  anew:
 	/* See if we are in the middle of a sequence. */
-	if (hp_sdc.wcurr < 0) hp_sdc.wcurr = 0;
+	if (hp_sdc.wcurr < 0)
+		hp_sdc.wcurr = 0;
 	read_lock_irq(&hp_sdc.rtq_lock);
-	if (hp_sdc.rcurr == hp_sdc.wcurr) hp_sdc.wcurr++;
+	if (hp_sdc.rcurr == hp_sdc.wcurr)
+		hp_sdc.wcurr++;
 	read_unlock_irq(&hp_sdc.rtq_lock);
-	if (hp_sdc.wcurr >= HP_SDC_QUEUE_LEN) hp_sdc.wcurr = 0;
+	if (hp_sdc.wcurr >= HP_SDC_QUEUE_LEN)
+		hp_sdc.wcurr = 0;
 	curridx = hp_sdc.wcurr;
 
-	if (hp_sdc.tq[curridx] != NULL) goto start;
+	if (hp_sdc.tq[curridx] != NULL)
+		goto start;
 
 	while (++curridx != hp_sdc.wcurr) {
 		if (curridx >= HP_SDC_QUEUE_LEN) {
@@ -358,7 +387,8 @@ unsigned long hp_sdc_put(void) {
 			continue;
 		}
 		read_unlock_irq(&hp_sdc.rtq_lock);
-		if (hp_sdc.tq[curridx] != NULL) break; /* Found one. */
+		if (hp_sdc.tq[curridx] != NULL)
+			break; /* Found one. */
 	}
 	if (curridx == hp_sdc.wcurr) { /* There's nothing queued to do. */
 		curridx = -1;
@@ -374,7 +404,8 @@ unsigned long hp_sdc_put(void) {
 		goto finish;
 	}
 
-	if (hp_sdc.wcurr == -1) goto done;
+	if (hp_sdc.wcurr == -1)
+		goto done;
 
 	curr = hp_sdc.tq[curridx];
 	idx = curr->actidx;
@@ -383,7 +414,8 @@ unsigned long hp_sdc_put(void) {
 		hp_sdc.tq[curridx] = NULL;
 		/* Interleave outbound data between the transactions. */
 		hp_sdc.wcurr++;
-		if (hp_sdc.wcurr >= HP_SDC_QUEUE_LEN) hp_sdc.wcurr = 0;
+		if (hp_sdc.wcurr >= HP_SDC_QUEUE_LEN)
+			hp_sdc.wcurr = 0;
 		goto finish;	
 	}
 
@@ -391,11 +423,13 @@ unsigned long hp_sdc_put(void) {
 	idx++;
 
 	if (curr->idx >= curr->endidx) {
-		if (act & HP_SDC_ACT_DEALLOC) kfree(curr);
+		if (act & HP_SDC_ACT_DEALLOC)
+			kfree(curr);
 		hp_sdc.tq[curridx] = NULL;
 		/* Interleave outbound data between the transactions. */
 		hp_sdc.wcurr++;
-		if (hp_sdc.wcurr >= HP_SDC_QUEUE_LEN) hp_sdc.wcurr = 0;
+		if (hp_sdc.wcurr >= HP_SDC_QUEUE_LEN)
+			hp_sdc.wcurr = 0;
 		goto finish;	
 	}
 
@@ -409,9 +443,10 @@ unsigned long hp_sdc_put(void) {
 		curr->idx++;
 		/* act finished? */
 		if ((act & HP_SDC_ACT_DURING) == HP_SDC_ACT_PRECMD)
-		  goto actdone;
+			goto actdone;
 		/* skip quantity field if data-out sequence follows. */
-		if (act & HP_SDC_ACT_DATAOUT) curr->idx++;
+		if (act & HP_SDC_ACT_DATAOUT)
+			curr->idx++;
 		goto finish;
 	}
 	if (act & HP_SDC_ACT_DATAOUT) {
@@ -430,8 +465,8 @@ unsigned long hp_sdc_put(void) {
 		}
 		idx += qty;
 		act &= ~HP_SDC_ACT_DATAOUT;
-	}
-	else while (act & HP_SDC_ACT_DATAREG) {
+	} else
+	    while (act & HP_SDC_ACT_DATAREG) {
 		int mask;
 		uint8_t w7[4];
 
@@ -456,15 +491,19 @@ unsigned long hp_sdc_put(void) {
 			int i = 0;
 
 			/* Need to point the write index register */	
-			while ((i < 4) && w7[i] == hp_sdc.r7[i]) i++;
+			while ((i < 4) && w7[i] == hp_sdc.r7[i])
+				i++;
+
 			if (i < 4) {
 				hp_sdc_status_out8(HP_SDC_CMD_SET_D0 + i);
 				hp_sdc.wi = 0x70 + i;
 				goto finish;
 			}
+
 			idx++;
 			if ((act & HP_SDC_ACT_DURING) == HP_SDC_ACT_DATAREG)
 				goto actdone;
+
 			curr->idx = idx;
 			act &= ~HP_SDC_ACT_DATAREG;
 			break;
@@ -476,12 +515,13 @@ unsigned long hp_sdc_put(void) {
 		{
 			int i = 0;
 
-			while ((i < 4) && w7[i] == hp_sdc.r7[i]) i++;
+			while ((i < 4) && w7[i] == hp_sdc.r7[i])
+				i++;
 			if (i >= 4) {
 				curr->idx = idx + 1;
 				if ((act & HP_SDC_ACT_DURING) ==
 				    HP_SDC_ACT_DATAREG)
-				        goto actdone;
+					goto actdone;
 			}
 		}
 		goto finish;
@@ -519,64 +559,69 @@ unsigned long hp_sdc_put(void) {
 		goto actdone;
 	}
 
-actdone:
-	if (act & HP_SDC_ACT_SEMAPHORE) {
+ actdone:
+	if (act & HP_SDC_ACT_SEMAPHORE)
 		up(curr->act.semaphore);
-	}
-	else if (act & HP_SDC_ACT_CALLBACK) {
+	else if (act & HP_SDC_ACT_CALLBACK)
 		curr->act.irqhook(0,NULL,0,0);
-	}
+
 	if (curr->idx >= curr->endidx) { /* This transaction is over. */
-		if (act & HP_SDC_ACT_DEALLOC) kfree(curr);
+		if (act & HP_SDC_ACT_DEALLOC)
+			kfree(curr);
 		hp_sdc.tq[curridx] = NULL;
-	}
-	else {
+	} else {
 		curr->actidx = idx + 1;
 		curr->idx = idx + 2;
 	}
 	/* Interleave outbound data between the transactions. */
 	hp_sdc.wcurr++;
-	if (hp_sdc.wcurr >= HP_SDC_QUEUE_LEN) hp_sdc.wcurr = 0;
+	if (hp_sdc.wcurr >= HP_SDC_QUEUE_LEN)
+		hp_sdc.wcurr = 0;
 
  finish:
 	/* If by some quirk IBF has cleared and our ISR has run to
 	   see that that has happened, do it all again. */
-	if (!hp_sdc.ibf && limit++ < 20) goto anew;
+	if (!hp_sdc.ibf && limit++ < 20)
+		goto anew;
 
  done:
-	if (hp_sdc.wcurr >= 0) tasklet_schedule(&hp_sdc.task);
+	if (hp_sdc.wcurr >= 0)
+		tasklet_schedule(&hp_sdc.task);
 	write_unlock(&hp_sdc.lock);
+
 	return 0;
 }
 
 /******* Functions called in either user or kernel context ****/
-int hp_sdc_enqueue_transaction(hp_sdc_transaction *this) {
+int hp_sdc_enqueue_transaction(hp_sdc_transaction *this)
+{
 	unsigned long flags;
 	int i;
 
 	if (this == NULL) {
 		tasklet_schedule(&hp_sdc.task);
 		return -EINVAL;
-	};
+	}
 
 	write_lock_irqsave(&hp_sdc.lock, flags);
 
 	/* Can't have same transaction on queue twice */
-	for (i=0; i < HP_SDC_QUEUE_LEN; i++)
-		if (hp_sdc.tq[i] == this) goto fail;
+	for (i = 0; i < HP_SDC_QUEUE_LEN; i++)
+		if (hp_sdc.tq[i] == this)
+			goto fail;
 
 	this->actidx = 0;
 	this->idx = 1;
 
 	/* Search for empty slot */
-	for (i=0; i < HP_SDC_QUEUE_LEN; i++) {
+	for (i = 0; i < HP_SDC_QUEUE_LEN; i++)
 		if (hp_sdc.tq[i] == NULL) {
 			hp_sdc.tq[i] = this;
 			write_unlock_irqrestore(&hp_sdc.lock, flags);
 			tasklet_schedule(&hp_sdc.task);
 			return 0;
 		}
-	}
+
 	write_unlock_irqrestore(&hp_sdc.lock, flags);
 	printk(KERN_WARNING PREFIX "No free slot to add transaction.\n");
 	return -EBUSY;
@@ -587,7 +632,8 @@ int hp_sdc_enqueue_transaction(hp_sdc_tr
 	return -EINVAL;
 }
 
-int hp_sdc_dequeue_transaction(hp_sdc_transaction *this) {
+int hp_sdc_dequeue_transaction(hp_sdc_transaction *this)
+{
 	unsigned long flags;
 	int i;
 
@@ -595,8 +641,9 @@ int hp_sdc_dequeue_transaction(hp_sdc_tr
 
 	/* TODO: don't remove it if it's not done. */
 
-	for (i=0; i < HP_SDC_QUEUE_LEN; i++)
-		if (hp_sdc.tq[i] == this) hp_sdc.tq[i] = NULL;
+	for (i = 0; i < HP_SDC_QUEUE_LEN; i++)
+		if (hp_sdc.tq[i] == this)
+			hp_sdc.tq[i] = NULL;
 
 	write_unlock_irqrestore(&hp_sdc.lock, flags);
 	return 0;
@@ -605,11 +652,11 @@ int hp_sdc_dequeue_transaction(hp_sdc_tr
 
 
 /********************** User context functions **************************/
-int hp_sdc_request_timer_irq(hp_sdc_irqhook *callback) {
-
-	if (callback == NULL || hp_sdc.dev == NULL) {
+int hp_sdc_request_timer_irq(hp_sdc_irqhook *callback)
+{
+	if (callback == NULL || hp_sdc.dev == NULL)
 		return -EINVAL;
-	}
+
 	write_lock_irq(&hp_sdc.hook_lock);
 	if (hp_sdc.timer != NULL) {
 		write_unlock_irq(&hp_sdc.hook_lock);
@@ -629,11 +676,11 @@ int hp_sdc_request_timer_irq(hp_sdc_irqh
 	return 0;
 }
 
-int hp_sdc_request_hil_irq(hp_sdc_irqhook *callback) {
-
-	if (callback == NULL || hp_sdc.dev == NULL) {
+int hp_sdc_request_hil_irq(hp_sdc_irqhook *callback)
+{
+	if (callback == NULL || hp_sdc.dev == NULL)
 		return -EINVAL;
-	}
+
 	write_lock_irq(&hp_sdc.hook_lock);
 	if (hp_sdc.hil != NULL) {
 		write_unlock_irq(&hp_sdc.hook_lock);
@@ -650,11 +697,11 @@ int hp_sdc_request_hil_irq(hp_sdc_irqhoo
 	return 0;
 }
 
-int hp_sdc_request_cooked_irq(hp_sdc_irqhook *callback) {
-
-	if (callback == NULL || hp_sdc.dev == NULL) {
+int hp_sdc_request_cooked_irq(hp_sdc_irqhook *callback)
+{
+	if (callback == NULL || hp_sdc.dev == NULL)
 		return -EINVAL;
-	}
+
 	write_lock_irq(&hp_sdc.hook_lock);
 	if (hp_sdc.cooked != NULL) {
 		write_unlock_irq(&hp_sdc.hook_lock);
@@ -672,9 +719,8 @@ int hp_sdc_request_cooked_irq(hp_sdc_irq
 	return 0;
 }
 
-int hp_sdc_release_timer_irq(hp_sdc_irqhook *callback) {
-
-
+int hp_sdc_release_timer_irq(hp_sdc_irqhook *callback)
+{
 	write_lock_irq(&hp_sdc.hook_lock);
 	if ((callback != hp_sdc.timer) ||
 	    (hp_sdc.timer == NULL)) {
@@ -694,8 +740,8 @@ int hp_sdc_release_timer_irq(hp_sdc_irqh
 	return 0;
 }
 
-int hp_sdc_release_hil_irq(hp_sdc_irqhook *callback) {
-
+int hp_sdc_release_hil_irq(hp_sdc_irqhook *callback)
+{
 	write_lock_irq(&hp_sdc.hook_lock);
 	if ((callback != hp_sdc.hil) ||
 	    (hp_sdc.hil == NULL)) {
@@ -715,8 +761,8 @@ int hp_sdc_release_hil_irq(hp_sdc_irqhoo
 	return 0;
 }
 
-int hp_sdc_release_cooked_irq(hp_sdc_irqhook *callback) {
-
+int hp_sdc_release_cooked_irq(hp_sdc_irqhook *callback)
+{
 	write_lock_irq(&hp_sdc.hook_lock);
 	if ((callback != hp_sdc.cooked) ||
 	    (hp_sdc.cooked == NULL)) {
@@ -738,7 +784,8 @@ int hp_sdc_release_cooked_irq(hp_sdc_irq
 
 /************************* Keepalive timer task *********************/
 
-void hp_sdc_kicker (unsigned long data) {
+void hp_sdc_kicker (unsigned long data)
+{
 	tasklet_schedule(&hp_sdc.task);
 	/* Re-insert the periodic task. */
 	mod_timer(&hp_sdc.kicker, jiffies + HZ);
@@ -772,7 +819,6 @@ static struct parisc_driver hp_sdc_drive
 
 static int __init hp_sdc_init(void)
 {
-	int i;
 	char *errstr;
 	hp_sdc_transaction t_sync;
 	uint8_t ts_sync[6];
@@ -796,7 +842,8 @@ static int __init hp_sdc_init(void)
 	hp_sdc.r7[3]		= 0xff;
 	hp_sdc.ibf		= 1;
 
-	for (i = 0; i < HP_SDC_QUEUE_LEN; i++) hp_sdc.tq[i] = NULL;
+	memset(&hp_sdc.tq, 0, sizeof(hp_sdc.tq));
+
 	hp_sdc.wcurr		= -1;
         hp_sdc.rcurr		= -1;
 	hp_sdc.rqty		= 0;
@@ -804,25 +851,30 @@ static int __init hp_sdc_init(void)
 	hp_sdc.dev_err = -ENODEV;
 
 	errstr = "IO not found for";
-	if (!hp_sdc.base_io) goto err0;
+	if (!hp_sdc.base_io)
+		goto err0;
 
 	errstr = "IRQ not found for";
-	if (!hp_sdc.irq) goto err0;
+	if (!hp_sdc.irq)
+		goto err0;
 
 	hp_sdc.dev_err = -EBUSY;
 
 #if defined(__hppa__)
 	errstr = "IO not available for";
-        if (request_region(hp_sdc.data_io, 2, hp_sdc_driver.name)) goto err0;
+        if (request_region(hp_sdc.data_io, 2, hp_sdc_driver.name))
+		goto err0;
 #endif	
 
 	errstr = "IRQ not available for";
 	if (request_irq(hp_sdc.irq, &hp_sdc_isr, IRQF_SHARED|IRQF_SAMPLE_RANDOM,
-		"HP SDC", &hp_sdc)) goto err1;
+			"HP SDC", &hp_sdc))
+		goto err1;
 
 	errstr = "NMI not available for";
 	if (request_irq(hp_sdc.nmi, &hp_sdc_nmisr, IRQF_SHARED,
-		"HP SDC NMI", &hp_sdc)) goto err2;
+			"HP SDC NMI", &hp_sdc))
+		goto err2;
 
 	printk(KERN_INFO PREFIX "HP SDC at 0x%p, IRQ %d (NMI IRQ %d)\n",
 	       (void *)hp_sdc.base_io, hp_sdc.irq, hp_sdc.nmi);
@@ -861,6 +913,7 @@ static int __init hp_sdc_init(void)
 	printk(KERN_WARNING PREFIX ": %s SDC IO=0x%p IRQ=0x%x NMI=0x%x\n",
 		errstr, (void *)hp_sdc.base_io, hp_sdc.irq, hp_sdc.nmi);
 	hp_sdc.dev = NULL;
+
 	return hp_sdc.dev_err;
 }
 
@@ -868,8 +921,10 @@ static int __init hp_sdc_init(void)
 
 static int __init hp_sdc_init_hppa(struct parisc_device *d)
 {
-	if (!d) return 1;
-	if (hp_sdc.dev != NULL) return 1;	/* We only expect one SDC */
+	if (!d)
+		return 1;
+	if (hp_sdc.dev != NULL)
+		return 1;	/* We only expect one SDC */
 
 	hp_sdc.dev		= d;
 	hp_sdc.irq		= d->irq;
@@ -906,8 +961,6 @@ static void hp_sdc_exit(void)
 
 	tasklet_kill(&hp_sdc.task);
 
-/*        release_region(hp_sdc.data_io, 2); */
-
 #if defined(__hppa__)
 	if (unregister_parisc_driver(&hp_sdc_driver))
 		printk(KERN_WARNING PREFIX "Error unregistering HP SDC");
@@ -979,7 +1032,7 @@ static int __init hp_sdc_register(void)
 	}
 	hp_sdc.r11 = tq_init_seq[4];
 	if (hp_sdc.r11 & HP_SDC_CFG_NEW) {
-		char *str;
+		const char *str;
 		printk(KERN_INFO PREFIX "New style SDC\n");
 		tq_init_seq[1] = HP_SDC_CMD_READ_XTD;
 		tq_init.actidx		= 0;
@@ -995,12 +1048,10 @@ static int __init hp_sdc_register(void)
 		hp_sdc.r7e = tq_init_seq[4];
 		HP_SDC_XTD_REV_STRINGS(hp_sdc.r7e & HP_SDC_XTD_REV, str)
 		printk(KERN_INFO PREFIX "Revision: %s\n", str);
-		if (hp_sdc.r7e & HP_SDC_XTD_BEEPER) {
+		if (hp_sdc.r7e & HP_SDC_XTD_BEEPER)
 			printk(KERN_INFO PREFIX "TI SN76494 beeper present\n");
-		}
-		if (hp_sdc.r7e & HP_SDC_XTD_BBRTC) {
+		if (hp_sdc.r7e & HP_SDC_XTD_BBRTC)
 			printk(KERN_INFO PREFIX "OKI MSM-58321 BBRTC present\n");
-		}
 		printk(KERN_INFO PREFIX "Spunking the self test register to force PUP "
 		       "on next firmware reset.\n");
 		tq_init_seq[0] = HP_SDC_ACT_PRECMD |
@@ -1015,11 +1066,9 @@ static int __init hp_sdc_register(void)
 		hp_sdc_enqueue_transaction(&tq_init);		
 		down(&tq_init_sem);
 		up(&tq_init_sem);
-	}
-	else {
+	} else
 		printk(KERN_INFO PREFIX "Old style SDC (1820-%s).\n",
 		       (hp_sdc.r11 & HP_SDC_CFG_REV) ? "3300" : "2564/3087");
-	}
 
         return 0;
 }
diff --git a/drivers/input/serio/hp_sdc_mlc.c b/drivers/input/serio/hp_sdc_mlc.c
index 37b44c9..a87c453 100644
--- a/drivers/input/serio/hp_sdc_mlc.c
+++ b/drivers/input/serio/hp_sdc_mlc.c
@@ -59,11 +59,12 @@ struct hp_sdc_mlc_priv_s {
 
 /************************* Interrupt context ******************************/
 static void hp_sdc_mlc_isr (int irq, void *dev_id,
-			    uint8_t status, uint8_t data) {
+			    uint8_t status, uint8_t data)
+{
   	int idx;
 	hil_mlc *mlc = &hp_sdc_mlc;
 
-	write_lock(&(mlc->lock));
+	write_lock(&mlc->lock);
 	if (mlc->icount < 0) {
 		printk(KERN_WARNING PREFIX "HIL Overflow!\n");
 		up(&mlc->isem);
@@ -73,18 +74,19 @@ static void hp_sdc_mlc_isr (int irq, voi
 	if ((status & HP_SDC_STATUS_IRQMASK) == HP_SDC_STATUS_HILDATA) {
 		mlc->ipacket[idx] |= data | HIL_ERR_INT;
 		mlc->icount--;
-		if (hp_sdc_mlc_priv.got5x) goto check;
-		if (!idx) goto check;
+		if (hp_sdc_mlc_priv.got5x || !idx)
+			goto check;
 		if ((mlc->ipacket[idx-1] & HIL_PKT_ADDR_MASK) !=
 		    (mlc->ipacket[idx] & HIL_PKT_ADDR_MASK)) {
 			mlc->ipacket[idx] &= ~HIL_PKT_ADDR_MASK;
 			mlc->ipacket[idx] |= (mlc->ipacket[idx-1]
-						    & HIL_PKT_ADDR_MASK);
+						& HIL_PKT_ADDR_MASK);
 		}
 		goto check;
 	}
 	/* We know status is 5X */
-	if (data & HP_SDC_HIL_ISERR) goto err;
+	if (data & HP_SDC_HIL_ISERR)
+		goto err;
 	mlc->ipacket[idx] =
 		(data & HP_SDC_HIL_R1MASK) << HIL_PKT_ADDR_SHIFT;
 	hp_sdc_mlc_priv.got5x = 1;
@@ -92,54 +94,64 @@ static void hp_sdc_mlc_isr (int irq, voi
 
  check:
 	hp_sdc_mlc_priv.got5x = 0;
-	if (mlc->imatch == 0) goto done;
+	if (mlc->imatch == 0)
+		goto done;
 	if ((mlc->imatch == (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL))
-	    && (mlc->ipacket[idx] == (mlc->imatch | idx))) goto done;
-	if (mlc->ipacket[idx] == mlc->imatch) goto done;
+	    && (mlc->ipacket[idx] == (mlc->imatch | idx)))
+		goto done;
+	if (mlc->ipacket[idx] == mlc->imatch)
+		goto done;
 	goto out;
 
  err:				
 	printk(KERN_DEBUG PREFIX "err code %x\n", data);
+
 	switch (data) {
 	case HP_SDC_HIL_RC_DONE:
 		printk(KERN_WARNING PREFIX "Bastard SDC reconfigured loop!\n");
 		break;
+
 	case HP_SDC_HIL_ERR:
 		mlc->ipacket[idx] |= HIL_ERR_INT | HIL_ERR_PERR |
-		  HIL_ERR_FERR | HIL_ERR_FOF;
+					HIL_ERR_FERR | HIL_ERR_FOF;
 		break;
+
 	case HP_SDC_HIL_TO:
 		mlc->ipacket[idx] |= HIL_ERR_INT | HIL_ERR_LERR;
 		break;
+
 	case HP_SDC_HIL_RC:
 		printk(KERN_WARNING PREFIX "Bastard SDC decided to reconfigure loop!\n");
 		break;
+
 	default:
 		printk(KERN_WARNING PREFIX "Unkown HIL Error status (%x)!\n", data);
 		break;
 	}
+
 	/* No more data will be coming due to an error. */
  done:
 	tasklet_schedule(mlc->tasklet);
-	up(&(mlc->isem));
+	up(&mlc->isem);
  out:
-	write_unlock(&(mlc->lock));
+	write_unlock(&mlc->lock);
 }
 
 
 /******************** Tasklet or userspace context functions ****************/
 
-static int hp_sdc_mlc_in (hil_mlc *mlc, suseconds_t timeout) {
+static int hp_sdc_mlc_in(hil_mlc *mlc, suseconds_t timeout)
+{
 	unsigned long flags;
 	struct hp_sdc_mlc_priv_s *priv;
 	int rc = 2;
 
 	priv = mlc->priv;
 
-	write_lock_irqsave(&(mlc->lock), flags);
+	write_lock_irqsave(&mlc->lock, flags);
 
 	/* Try to down the semaphore */
-	if (down_trylock(&(mlc->isem))) {
+	if (down_trylock(&mlc->isem)) {
 		struct timeval tv;
 		if (priv->emtestmode) {
 			mlc->ipacket[0] =
@@ -152,55 +164,54 @@ static int hp_sdc_mlc_in (hil_mlc *mlc, 
 			goto wasup;
 		}
 		do_gettimeofday(&tv);
-		tv.tv_usec += 1000000 * (tv.tv_sec - mlc->instart.tv_sec);
+		tv.tv_usec += USEC_PER_SEC * (tv.tv_sec - mlc->instart.tv_sec);
 		if (tv.tv_usec - mlc->instart.tv_usec > mlc->intimeout) {
-		  /*		  printk("!%i %i",
-				  tv.tv_usec - mlc->instart.tv_usec,
-				  mlc->intimeout);
-		  */
+			/*	printk("!%i %i",
+				tv.tv_usec - mlc->instart.tv_usec,
+				mlc->intimeout);
+			 */
 			rc = 1;
-			up(&(mlc->isem));
+			up(&mlc->isem);
 		}
 		goto done;
 	}
  wasup:
-	up(&(mlc->isem));
+	up(&mlc->isem);
 	rc = 0;
 	goto done;
  done:
-	write_unlock_irqrestore(&(mlc->lock), flags);
+	write_unlock_irqrestore(&mlc->lock, flags);
 	return rc;
 }
 
-static int hp_sdc_mlc_cts (hil_mlc *mlc) {
+static int hp_sdc_mlc_cts(hil_mlc *mlc)
+{
 	struct hp_sdc_mlc_priv_s *priv;
 	unsigned long flags;
 
 	priv = mlc->priv;	
 
-	write_lock_irqsave(&(mlc->lock), flags);
+	write_lock_irqsave(&mlc->lock, flags);
 
 	/* Try to down the semaphores -- they should be up. */
-	if (down_trylock(&(mlc->isem))) {
-		BUG();
-		goto busy;
-	}
-	if (down_trylock(&(mlc->osem))) {
-	 	BUG();
-		up(&(mlc->isem));
-		goto busy;
-	}
-	up(&(mlc->isem));
-	up(&(mlc->osem));
+	BUG_ON(down_trylock(&mlc->isem));
+	BUG_ON(down_trylock(&mlc->osem));
 
-	if (down_trylock(&(mlc->csem))) {
-		if (priv->trans.act.semaphore != &(mlc->csem)) goto poll;
-		goto busy;
+	up(&mlc->isem);
+	up(&mlc->osem);
+
+	if (down_trylock(&mlc->csem)) {
+		if (priv->trans.act.semaphore != &mlc->csem)
+			goto poll;
+		else
+			goto busy;
 	}
-	if (!(priv->tseq[4] & HP_SDC_USE_LOOP)) goto done;
+
+	if (!(priv->tseq[4] & HP_SDC_USE_LOOP))
+		goto done;
 
  poll:
-	priv->trans.act.semaphore = &(mlc->csem);
+	priv->trans.act.semaphore = &mlc->csem;
 	priv->trans.actidx = 0;
 	priv->trans.idx = 1;
 	priv->trans.endidx = 5;
@@ -210,48 +221,44 @@ static int hp_sdc_mlc_cts (hil_mlc *mlc)
 	priv->tseq[2] = 1;
 	priv->tseq[3] = 0;
 	priv->tseq[4] = 0;
-	hp_sdc_enqueue_transaction(&(priv->trans));
+	hp_sdc_enqueue_transaction(&priv->trans);
  busy:
-	write_unlock_irqrestore(&(mlc->lock), flags);
+	write_unlock_irqrestore(&mlc->lock, flags);
 	return 1;
  done:
-	priv->trans.act.semaphore = &(mlc->osem);
-	up(&(mlc->csem));
-	write_unlock_irqrestore(&(mlc->lock), flags);
+	priv->trans.act.semaphore = &mlc->osem;
+	up(&mlc->csem);
+	write_unlock_irqrestore(&mlc->lock, flags);
 	return 0;
 }
 
-static void hp_sdc_mlc_out (hil_mlc *mlc) {
+static void hp_sdc_mlc_out(hil_mlc *mlc)
+{
 	struct hp_sdc_mlc_priv_s *priv;
 	unsigned long flags;
 
 	priv = mlc->priv;
 
-	write_lock_irqsave(&(mlc->lock), flags);
+	write_lock_irqsave(&mlc->lock, flags);
 	
 	/* Try to down the semaphore -- it should be up. */
-	if (down_trylock(&(mlc->osem))) {
-	 	BUG();
-		goto done;
-	}
+	BUG_ON(down_trylock(&mlc->osem));
 
-	if (mlc->opacket & HIL_DO_ALTER_CTRL) goto do_control;
+	if (mlc->opacket & HIL_DO_ALTER_CTRL)
+		goto do_control;
 
  do_data:
 	if (priv->emtestmode) {
-		up(&(mlc->osem));
+		up(&mlc->osem);
 		goto done;
 	}
 	/* Shouldn't be sending commands when loop may be busy */
-	if (down_trylock(&(mlc->csem))) {
-	 	BUG();
-		goto done;
-	}
-	up(&(mlc->csem));
+	BUG_ON(down_trylock(&mlc->csem));
+	up(&mlc->csem);
 
 	priv->trans.actidx = 0;
 	priv->trans.idx = 1;
-	priv->trans.act.semaphore = &(mlc->osem);
+	priv->trans.act.semaphore = &mlc->osem;
 	priv->trans.endidx = 6;
 	priv->tseq[0] =
 		HP_SDC_ACT_DATAREG | HP_SDC_ACT_POSTCMD | HP_SDC_ACT_SEMAPHORE;
@@ -264,7 +271,8 @@ static void hp_sdc_mlc_out (hil_mlc *mlc
 		(mlc->opacket & HIL_PKT_DATA_MASK)
 		  >> HIL_PKT_DATA_SHIFT;
 	priv->tseq[4] = 0;  /* No timeout */
-	if (priv->tseq[3] == HIL_CMD_DHR) priv->tseq[4] = 1;
+	if (priv->tseq[3] == HIL_CMD_DHR)
+		priv->tseq[4] = 1;
 	priv->tseq[5] = HP_SDC_CMD_DO_HIL;
 	goto enqueue;
 
@@ -274,11 +282,12 @@ static void hp_sdc_mlc_out (hil_mlc *mlc
 	/* we cannot emulate this, it should not be used. */
 	BUG_ON((mlc->opacket & (HIL_CTRL_APE | HIL_CTRL_IPF)) == HIL_CTRL_APE);
 	
-	if ((mlc->opacket & HIL_CTRL_ONLY) == HIL_CTRL_ONLY) goto control_only;
-	if (mlc->opacket & HIL_CTRL_APE) {
-		BUG(); /* Should not send command/data after engaging APE */
-		goto done;
-	}
+	if ((mlc->opacket & HIL_CTRL_ONLY) == HIL_CTRL_ONLY)
+		goto control_only;
+
+	/* Should not send command/data after engaging APE */
+	BUG_ON(mlc->opacket & HIL_CTRL_APE);
+
 	/* Disengaging APE this way would not be valid either since
 	 * the loop must be allowed to idle.
 	 *
@@ -290,22 +299,22 @@ static void hp_sdc_mlc_out (hil_mlc *mlc
  control_only:
 	priv->trans.actidx = 0;
 	priv->trans.idx = 1;
-	priv->trans.act.semaphore = &(mlc->osem);
+	priv->trans.act.semaphore = &mlc->osem;
 	priv->trans.endidx = 4;
 	priv->tseq[0] =
 	  HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT | HP_SDC_ACT_SEMAPHORE;
 	priv->tseq[1] = HP_SDC_CMD_SET_LPC;
 	priv->tseq[2] = 1;
-	//	priv->tseq[3] = (mlc->ddc + 1) | HP_SDC_LPS_ACSUCC;
+	/* priv->tseq[3] = (mlc->ddc + 1) | HP_SDC_LPS_ACSUCC; */
 	priv->tseq[3] = 0;
 	if (mlc->opacket & HIL_CTRL_APE) {
 		priv->tseq[3] |= HP_SDC_LPC_APE_IPF;
-		down_trylock(&(mlc->csem));
+		down_trylock(&mlc->csem);
 	}
  enqueue:
-	hp_sdc_enqueue_transaction(&(priv->trans));
+	hp_sdc_enqueue_transaction(&priv->trans);
  done:
-	write_unlock_irqrestore(&(mlc->lock), flags);
+	write_unlock_irqrestore(&mlc->lock, flags);
 }
 
 static int __init hp_sdc_mlc_init(void)
@@ -316,7 +325,7 @@ static int __init hp_sdc_mlc_init(void)
 
 	hp_sdc_mlc_priv.emtestmode = 0;
 	hp_sdc_mlc_priv.trans.seq = hp_sdc_mlc_priv.tseq;
-	hp_sdc_mlc_priv.trans.act.semaphore = &(mlc->osem);
+	hp_sdc_mlc_priv.trans.act.semaphore = &mlc->osem;
 	hp_sdc_mlc_priv.got5x = 0;
 
 	mlc->cts		= &hp_sdc_mlc_cts;
@@ -336,10 +345,9 @@ static int __init hp_sdc_mlc_init(void)
 	}
 	return 0;
  err1:
-	if (hil_mlc_unregister(mlc)) {
+	if (hil_mlc_unregister(mlc))
 		printk(KERN_ERR PREFIX "Failed to unregister MLC structure with hil_mlc.\n"
 			"This is bad.  Could cause an oops.\n");
-	}
  err0:
 	return -EBUSY;
 }
@@ -347,14 +355,14 @@ static int __init hp_sdc_mlc_init(void)
 static void __exit hp_sdc_mlc_exit(void)
 {
 	hil_mlc *mlc = &hp_sdc_mlc;
-	if (hp_sdc_release_hil_irq(&hp_sdc_mlc_isr)) {
+
+	if (hp_sdc_release_hil_irq(&hp_sdc_mlc_isr))
 		printk(KERN_ERR PREFIX "Failed to release the raw HIL ISR hook.\n"
 			"This is bad.  Could cause an oops.\n");
-	}
-	if (hil_mlc_unregister(mlc)) {
+
+	if (hil_mlc_unregister(mlc))
 		printk(KERN_ERR PREFIX "Failed to unregister MLC structure with hil_mlc.\n"
 			"This is bad.  Could cause an oops.\n");
-	}
 }
 
 module_init(hp_sdc_mlc_init);
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Subject: Re: [parisc-linux] Re: call_init in libc6 2.3.6.ds1-11
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> Keep in mind James pointed out that while he fixed the primary source of
> corruption, there still might be second-order problems...

There's always bugs...

While this might be a kernel TLB management problem, there's no strong
evidence of that and I wouldn't automatically assign the problem to the
pa8800 bug black hole.  This could just as easily be a bug in the dynamic
loader.  The system now runs for weeks with only occasional problems in
UP mode.  Will see about SMP mode.

The memory corruption is very limited and appears to occur in the
initial phase of loading libc.  It's happened twice while the echo
command tried to generate a file list building libjava.  Tens of
thousands of other applications have been launched successfully.
Probably, a lot more applications would die if memory corruption
was rampant.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: call_init in libc6 2.3.6.ds1-11
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> I posted a testcase here that always crashes the kernel:
> http://lists.parisc-linux.org/pipermail/parisc-linux/2007-February/031250.html
> 
> I'm trying to build my kernel with debugging but my current
> configuration doesn't boot.

Yes, this testcase is obviously excellent progress toward understanding
this bug.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: call_init in libc6 2.3.6.ds1-11
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> Out of curiosity did the space registers match between the core dump
> and the user fault printed by the kernel?

Yes.  One thing that I noticed is the illegal instruction kernel
printout lacks a header like the following:

Feb 19 00:22:42 localhost kernel: do_page_fault() pid=4255 command='ld' type=15
address=0x006cb040
Feb 19 00:22:42 localhost kernel: vm_start = 0x0007c000, vm_end = 0x001f4000

So, the cause of the printout isn't clear.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Kyle,

Here is the proper patch with Signed-off-by.

Cheers,
  Guy


On Sun, 18 Feb 2007 22:16:27 -0500
Kyle McMartin <kyle@mcmartin.ca> wrote:

> On Sun, Feb 18, 2007 at 10:11:13PM -0500, Carlos O'Donell wrote:
> > >>  #define __NR_Linux_syscalls     298
> > 
> > You also forgot to update the total syscall count.
> > 
> 
> I fixed that one for him. ;-)


-- 
Guy Martin
Gentoo Linux - HPPA port lead

--Multipart=_Tue__20_Feb_2007_18_06_58_+0100_BK3LTC=uCclzkv7T
Content-Type: text/x-patch;
 name="statfs-syscalls.diff"
Content-Disposition: attachment;
 filename="statfs-syscalls.diff"
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Add missing statfs64 and fstatfs64 to parisc.

Signed-off-by: Guy Martion <gmsoft@tuxicoman.be>

diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 5114666..7d665de 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -403,5 +403,7 @@
 	ENTRY_COMP(move_pages)		/* 295 */
 	ENTRY_SAME(getcpu)
 	ENTRY_SAME(epoll_pwait)
+	ENTRY_COMP(statfs64)
+	ENTRY_COMP(fstatfs64)
 	/* Nothing yet */
 
diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
index 7c1bb8b..5513bdf 100644
--- a/include/asm-parisc/unistd.h
+++ b/include/asm-parisc/unistd.h
@@ -790,8 +790,10 @@
 #define __NR_move_pages		(__NR_Linux + 295)
 #define __NR_getcpu		(__NR_Linux + 296)
 #define __NR_epoll_pwait	(__NR_Linux + 297)
+#define __NR_statfs64		(__NR_Linux + 298)
+#define __NR_fstatfs64		(__NR_Linux + 299)
 
-#define __NR_Linux_syscalls     298
+#define __NR_Linux_syscalls     300
 
 #define HPUX_GATEWAY_ADDR       0xC0000004
 #define LINUX_GATEWAY_ADDR      0x100

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Subject: Re: [parisc-linux] Re: call_init in libc6 2.3.6.ds1-11
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> On 2/19/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > > John, what's the fastest non-PA8800 machine you have right now? Would a dual
> > > 750MHz j6700 help you?
> >
> > c3750 (875 MHz).  This one is is subject to the thread timing bug.
> 
> What is the "thread timing bug"?

http://lists.parisc-linux.org/pipermail/parisc-linux/2006-December/030969.html

I presume this is the same bug as you reported here:
http://lists.parisc-linux.org/pipermail/parisc-linux/2007-February/031200.html

In the java case, the tests that fail are always thread intensive.
I should note that when a test times out in the gcc testsuite (other
than in the acats suite), expect tries to kill off the processes
that have timed out.  Yet, sometimes the processes survive and killing
the initial process causes a system crash.  Also, the system often
fails to reboot when it panics.

There's some timing aspect to this bug.  I have the strong impression
that it occurs mainly on fast processors.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Saturday 17 February 2007, kyle mcmartin wrote:
> And, well, I'm kind of getting sick of it. I propose for at least the next
> few months, instead of everyone being able to pollute the shared tree, th=
ey
> keep all their work in branches. Instead of merging or pushing, or
> whatever, you can send the patches to the list for review. This will work
> more or less like linux-kernel does, hopefully.
>
> Your patch will get an ACK or NAK from others here, and I'll directly
> merge the mail into my git tree, instead of waiting until there's an
> aperture of Minimal Kyle Apathy[3] and having to sync up a pile of junk[4=
].

for the layman (aka me), if i want to pull the latest sources in order to w=
ork=20
on glibc/nptl and such, what git tree should i be pulling ?  torvalds'=20
linux-2.6.git ?  the linux-2.6.git hosted on the parisc-linux.org site ? =20
some other tree ?
=2Dmike

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Subject: [parisc-linux] Debian-Oracle in my HP PA-RISC box
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Hi,=20I=20already=20installed=20debian=203.1=20sarge=20r4=20for=20PA-RISC=20=
in=20my=20HP=20rp5400=20box.=20The=20reason=20to=20do=20that=20is=20becaus=
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=20

1.=09The=20oracle=20installer=20disk=20is=20not=20running,=20I=20use=20dif=
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=09Here=20is=20the=20lspci=20command:
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=09(EE)=20No=20devices=20detected.
=09Fatal=20server=20error:
=09no=20screens=20found

=20

=20

Thank=20you=20for=20your=20help...

=20

Alejandro=20Retana=20Rodr=EDguez=20


__________________________________________________________________________=
____________
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or,
please=20notify=20us=20immediately=20by=20replying=20to=20the=20message=20=
and
deleting=20it=20from=20your=20computer.=20Thank=20you.
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<p=20class=3DMsoNormal=20style=3D'margin-left:18.0pt'><font=20size=3D2=20f=
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style=3D'font-size:10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></fon=
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style=3D'font-size:10.0pt;font-family:Arial'>Thank=20you=20for=20your=20he=
lp&#8230;<o:p></o:p></span></font></p>

<p=20class=3DMsoNormal=20style=3D'margin-left:18.0pt'><font=20size=3D2=20f=
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<BR>
__________________________________________________________________________=
____________<BR>
The=20information=20contained=20in=20this=20message=20may=20be=20privilege=
d<BR>
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or,<BR>
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From - Thu Nov 08 21:35:44 2018
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Subject: Re: [parisc-linux] RV: Debian-Oracle in my HP PA-RISC box
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On Thu, 2007-02-22 11:37:54 -0600, Alejandro Retana <ARetana@cr.freshdelmon=
te.com> wrote:

> oracle@debian:/cdrom$ ls
>=20
> doc  index.htm  install  lgto  response  runInstaller  stage
>=20
> oracle@debian:/cdrom$ ./runInstaller
>=20
> oracle@debian:/cdrom$ ./runInstaller: line 35: ./runInstaller: cannot exe=
cute binary file

Sure. As far as I know, there simply *is* no Linux ELF Oracle version
for hppa.  This just won't work.


Try 'file runInstaller' to see what what this file was created for...


MfG, JBG

--=20
      Jan-Benedict Glaw      jbglaw@lug-owl.de              +49-172-7608481
Signature of:              Alles sollte so einfach wie m=C3=B6glich gemacht=
 sein.
the second  :                          Aber nicht einfacher.  (Einstein)

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Subject: [parisc-linux] Re: NPTL for hppa-linux is not backwards compatible
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> All statically initialized locks are broken. We made locks smaller,
> and changed the value of the static initialization.

Smaller?  Smaller is easy.  And you didn't actually reduce
__SIZEOF_PTHREAD_MUTEX_T, did you?  This seems like it would not be at all
hard to accommodate just with symbol versioning and not break any
compatibility.  Off hand, it seems like it would be some simple code in one
new file in your sysdeps/ tree and a smattering of sysdeps Versions files.

But if your community is happy with a soname change and not worrying about
its various impacts, by all means just do that.  It's a lovely thing to be
able to stop compiling in all the compat stuff.

To do that, all you need is sysdeps/unix/sysv/linux/hppa/nptl/shlib-versions:

hppa.*-.*-linux.*	libc=6.1		GLIBC_2.6
hppa.*-.*-linux.*	libpthread=0.1		GLIBC_2.6

If there is any linuxthreads configuration still possible, that would leave
it producing libc.so.6/libpthread.so.0.  If that really can never be any
more, probably better to put the libc line in
sysdeps/unix/sysv/linux/hppa/shlib-versions. 


Thanks,
Roland
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Subject: Re: [parisc-linux] Re: NPTL for hppa-linux is not backwards
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> In the new structure we have shifted everything up because __lock is
> now an integer, instead of a _pthread_fastlock with a 4 word lock
> structure. Should I add padding after "__lock" e.g. int pad[3]?

Yes, you must dedicate those words to compatibility only.

> In an old executable the following static initializers:
> PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INTIALIZER,
> PTHREAD_RWLOCK_INITIALIZER will setup the __spinlock structure to
> {1,1,1,1} e.g. unlocked in our Linuxthreads implementation.
> 
> To be clear are you suggesting I write compat wrappers for the
> pthread_mutex_*, pthread_cond_*, and pthread_rwlock_* functions to
> detect old style initialized locks, and reinitialize the lock word?

Yes.  The only ABIs affected are all functions taking pthread_mutex_t,
pthread_cond_t, or pthread_rwlock_t pointer arguments--except for
pthread_*_init, which are not affected because their only ABI contract is
the minimum size and alignment of available space at the pointer passed,
which hasn't gotten smaller.

Add sysdeps/unix/sysv/linux/hppa/nptl/Versions, with:

libc {
  GLIBC_2.6 {
    pthread_mutex_lock;
    ...all the affected symbols...
  }
}
libpthread {
  GLIBC_2.6 {
    pthread_mutex_lock;
    ...all the affected symbols...
  }
}

This is enough for the real functions all to get defined in the GLIBC_2.6
version set for ones that don't already have compatibility functions.  Some
pthread_cond functions already have compatibility functions for GLIBC_2.0,
and the way this is done means that GLIBC_2.3.2 is directly specified as
the version set in the declarations.  So you'll also have to override
nptl/forward.c in sysdeps/unix/sysv/linux/hppa/nptl/, probably just copy
and modify it.  For the affected functions there that have e.g.:

versioned_symbol (libc, __pthread_cond_broadcast, pthread_cond_broadcast,
		  GLIBC_2_3_2);

you need to change this to GLIBC_2_6 here.  That gets all the new functions
into the right version set.

Then for the existing compat stuff like:

#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_3_2)
strong_alias (__pthread_cond_broadcast, __pthread_cond_broadcast_2_0)
compat_symbol (libc, __pthread_cond_broadcast_2_0, pthread_cond_broadcast,
	       GLIBC_2_0);
#endif

You need to instead make it:

strong_alias (__pthread_cond_broadcast_2_3_2, __pthread_cond_broadcast_2_0)

Somewhere else like a new compat file you can define the compat routines:

	static void
	compat_mutex_init (pthread_mutex_t *p)
	{
	  if ((p->__data.__lock ^ p->__data.__pad[0]
	       ^ p->__data.__pad[1] ^ p->__data.__pad[2]) == 1)
	    p->__data.__lock = p->__data.__pad[0]
	      = p->__data.__pad[1] = p->__data.__pad[2] = 0;
	}

	int
	__pthread_mutex_lock_2_3_2 (pthread_mutex_t *p)
	{
	  compat_mutex_init (p);
	  return __pthread_mutex_lock (p);
	}

	...

That goes inside:
	 #ifdef SHLIB_COMPAT (libpthread, GLIBC_2_3_2, GLIBC_2_6)

Those same wrappers can go in libc (might as well be pulled into
forward.c), and there SHLIB_COMPAT (libc, ...) is what needs to be tested.
(You could use some more macro testing and #include the same source into
forward.c for libc.so that is compiled as an extra object for libpthread.)

Because of versioned_symbol uses you'll need to add wrapper files for
pthread_cond_destroy.c et al that define the functions whose version set
you're changing (only the ones that use versioned_symbol).  They can do:

#ifndef INCLUDED_SELF
# define INCLUDED_SELF
# include <pthread_cond_destroy.c>
#else
# include <shlib-compat.h>
# undef GLIBC_2_3_2
# define GLIBC_2_3_2 GLIBC_2_6
# include_next <pthread_cond_destroy.c>
#endif

I think that about covers it.


Thanks,
Roland
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On Tue, 2007-02-20 at 13:34 -0500, Carlos O'Donell wrote:
> sr00-03  00000000000e2800 00000000000e2800 0000000000000000 00000000000e2800
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040334894 0000000040334898
>  IIR: 0ec25033    ISR: 00000000000e2800  IOR: 00000000000aac8c
                         ^^^^^^^^^^^^^^^^
This clearly identifies the faulting space

>  CPU:        0   CR30: 000000009ad38000 CR31: 0000000040848000
>  ORIG_R28: 00000000407f6c00
>  IAOQ[0]: pa_memcpy+0x114/0x2d0
>  IAOQ[1]: pa_memcpy+0x118/0x2d0
>  RP(r2): copy_from_user+0x34/0x40
> Backtrace:

Which means that somehow a TLB entry got inserted for address
00000000000aac8c in space 00000000000e2800 which didn't have the correct
Access ID (which for us should have been the space 00000000000e2800).

Or, that %cr8 somehow doesn't contain the space 00000000000e2800 ... but
I think that's a bit more unlikely.

James


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On Fri, 2007-02-23 at 15:23 -0600, James Bottomley wrote:
> Which means that somehow a TLB entry got inserted for address
> 00000000000aac8c in space 00000000000e2800 which didn't have the correct
> Access ID (which for us should have been the space 00000000000e2800).
> 
> Or, that %cr8 somehow doesn't contain the space 00000000000e2800 ... but
> I think that's a bit more unlikely.

Actually, I've changed my mind ... I don't think there's any way we can
get the TLB marked with the wrong Access ID (but if we do there's no way
to get it out of the fault data).  Could you add a printout of %cr8 and
current->comm to the data for the protection id trap in
arch/parisc/kernel/traps.c and tell me what it prints?

Thanks,

James


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> >  IIR: 0ec25033    ISR: 00000000000e2800  IOR: 00000000000aac8c
>                          ^^^^^^^^^^^^^^^^
> This clearly identifies the faulting space

This is for
	ldb,ma 1(sr1,r22),r19

> >  CPU:        0   CR30: 000000009ad38000 CR31: 0000000040848000
> >  ORIG_R28: 00000000407f6c00
> >  IAOQ[0]: pa_memcpy+0x114/0x2d0
> >  IAOQ[1]: pa_memcpy+0x118/0x2d0
> >  RP(r2): copy_from_user+0x34/0x40
> > Backtrace:
> 
> Which means that somehow a TLB entry got inserted for address
> 00000000000aac8c in space 00000000000e2800 which didn't have the correct
> Access ID (which for us should have been the space 00000000000e2800).

Just wondering why a protection id trap causes the system to eat sparcs...
Is this a combined TLB issue?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Fri, 2007-02-23 at 19:39 -0500, John David Anglin wrote:
> Just wondering why a protection id trap causes the system to eat
> sparcs...

Because we're in the kernel ... that's what the die_if_kernel() does.

> Is this a combined TLB issue?

It's clearly an Access ID mismatch ... but why I don't know; it's either
the TLB access ID or %cr8, which is what I asked Carlos to debug.

James


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In-Reply-To: Carlos O'Donell's message of  Friday,
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> Unfortunatly, due to alignment the NPTL pthread_cond_t grows larger
> than the Linuxthreads version when I add the padding. This is the only
> structure the grows larger in size than before. Is there any way I can
> avoid adding the padding?

It looks to me like you have one word to spare.  That's all you really
need.  That word will only ever be 1 from old PTHREAD_COND_INITIALIZER.
Checking all three padding words is really just paranoia trying to
distinguish clobbered structs from old initialized data.


Thanks,
Roland
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From: James Bottomley <James.Bottomley@SteelEye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] The parisc SMP boot problem
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On Sun, 2007-02-18 at 14:27 -0600, James Bottomley wrote:
> On Sun, 2007-02-18 at 14:32 -0500, Kyle McMartin wrote:
> > Any idea what was wrong with it?
> 
> Not yet ... the fact that everything goes OK for a while then hangs
> implies there's some issue with handling the SID wrap around, but I
> can't pinpoint it yet.

OK, it turns out it was much simpler.  The SMP distributed
load_context() changes %sr3 and %cr8.  However, in an interrupt all of
the space registers are saved and restored, so, even though the routine
changes %sr3, it gets changed back on the rfi after the IPI completes.

I think this is the fix.  Although, it strikes me that no interrupt
should be mucking with the space registers, so it's probably safe not to
save or restore any of them.

James

diff --git a/include/asm-parisc/assembly.h b/include/asm-parisc/assembly.h
index 5587f00..6c4d126 100644
--- a/include/asm-parisc/assembly.h
+++ b/include/asm-parisc/assembly.h
@@ -435,7 +435,7 @@
 	SAVE_SP  (%sr0, PT_SR0 (\regs))
 	SAVE_SP  (%sr1, PT_SR1 (\regs))
 	SAVE_SP  (%sr2, PT_SR2 (\regs))
-	SAVE_SP  (%sr3, PT_SR3 (\regs))
+;	SAVE_SP  (%sr3, PT_SR3 (\regs))
 	SAVE_SP  (%sr4, PT_SR4 (\regs))
 	SAVE_SP  (%sr5, PT_SR5 (\regs))
 	SAVE_SP  (%sr6, PT_SR6 (\regs))
@@ -475,7 +475,7 @@
 	REST_SP  (%sr0, PT_SR0 (\regs))
 	REST_SP  (%sr1, PT_SR1 (\regs))
 	REST_SP  (%sr2, PT_SR2 (\regs))
-	REST_SP  (%sr3, PT_SR3 (\regs))
+;	REST_SP  (%sr3, PT_SR3 (\regs))
 	REST_SP  (%sr4, PT_SR4 (\regs))
 	REST_SP  (%sr5, PT_SR5 (\regs))
 	REST_SP  (%sr6, PT_SR6 (\regs))


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From: James Bottomley <James.Bottomley@SteelEye.com>
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Subject: [parisc-linux] [PATCH] fix SMP TLB optimisations
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Xref: news.gmane.org gmane.linux.ports.parisc:24397

Since we're now changing the %sr3 from an IPI, we have to be careful
about other places in the kernel where we're using temporary values in %
sr3.  As far as I can tell, this is pretty much only non local cache
flushing.  The following patch fixes the IPI to work (by not saving %sr3
across an interruption) and patches up temporary %sr3 usage.

The sharp eyed will also notice I've corrected a Protection ID bug with
the non current flushes.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 00b1641..cb1dd17 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -303,25 +303,28 @@ flush_user_cache_page_non_current(struct vm_area_struct *vma,
 				  unsigned long vmaddr)
 {
 	/* save the current process space and pgd */
-	unsigned long space = mfsp(3), pgd = mfctl(25);
+	unsigned long space, pgd;
 
-	/* we don't mind taking interrups since they may not
-	 * do anything with user space, but we can't
-	 * be preempted here */
-	preempt_disable();
+	/* Have to disable interrupts here, since now %sr3 changes
+	 * are carried by IPI and we can't have that happen while
+	 * we're using a temporary %sr3 */
+	local_irq_disable();
+
+	space = mfsp(3);
+	pgd = mfctl(25);
 
 	/* make us current */
 	mtctl(__pa(vma->vm_mm->pgd), 25);
-	mtsp(vma->vm_mm->context, 3);
+	load_context(vma->vm_mm->context);
 
 	flush_user_dcache_page(vmaddr);
 	if(vma->vm_flags & VM_EXEC)
 		flush_user_icache_page(vmaddr);
 
 	/* put the old current process back */
-	mtsp(space, 3);
+	load_context(space);
 	mtctl(pgd, 25);
-	preempt_enable();
+	local_irq_enable();
 }
 
 
diff --git a/include/asm-parisc/assembly.h b/include/asm-parisc/assembly.h
index 5587f00..efe9ebc 100644
--- a/include/asm-parisc/assembly.h
+++ b/include/asm-parisc/assembly.h
@@ -435,7 +435,8 @@
 	SAVE_SP  (%sr0, PT_SR0 (\regs))
 	SAVE_SP  (%sr1, PT_SR1 (\regs))
 	SAVE_SP  (%sr2, PT_SR2 (\regs))
-	SAVE_SP  (%sr3, PT_SR3 (\regs))
+; Can't save and restore %sr3, it may be update from IPI
+;	SAVE_SP  (%sr3, PT_SR3 (\regs))
 	SAVE_SP  (%sr4, PT_SR4 (\regs))
 	SAVE_SP  (%sr5, PT_SR5 (\regs))
 	SAVE_SP  (%sr6, PT_SR6 (\regs))
@@ -475,7 +476,8 @@
 	REST_SP  (%sr0, PT_SR0 (\regs))
 	REST_SP  (%sr1, PT_SR1 (\regs))
 	REST_SP  (%sr2, PT_SR2 (\regs))
-	REST_SP  (%sr3, PT_SR3 (\regs))
+; Can't save and restore %sr3, it may be updated from IPI
+;	REST_SP  (%sr3, PT_SR3 (\regs))
 	REST_SP  (%sr4, PT_SR4 (\regs))
 	REST_SP  (%sr5, PT_SR5 (\regs))
 	REST_SP  (%sr6, PT_SR6 (\regs))


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Subject: [parisc-linux] Re: NPTL for hppa-linux is not backwards compatible
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Cc: libc-ports@sourceware.org,
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On Thursday 22 February 2007, Roland McGrath wrote:
> > All statically initialized locks are broken. We made locks smaller,
> > and changed the value of the static initialization.
>
> Smaller?  Smaller is easy.  And you didn't actually reduce
> __SIZEOF_PTHREAD_MUTEX_T, did you?  This seems like it would not be at all
> hard to accommodate just with symbol versioning and not break any
> compatibility.  Off hand, it seems like it would be some simple code in o=
ne
> new file in your sysdeps/ tree and a smattering of sysdeps Versions files.

how can you do symbol versioning on static initializers ?  the initialized=
=20
value is compiled into the .data sections of the actual binary ...

hmm ... do you mean we retain the pthread code that uses the old locking=20
methods and create all the new code with glibc-2.6 symbol versions ?
=2Dmike

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On Mon, Feb 26, 2007 at 11:20:50PM +0530, ram wrote:
> >Yeah, this is a known problem. Current workaround is to hack the
> >ccio driver to increase the minimum amount of IOVA space allocated.
> >
> >We need to make this a kernel parameter.
> 
> 
> 
> Hi
> 
> thanks for the quick reply
> can you suggest me some document
> how can i hack the code make my HP R class work with debian

This would require you build your own kernel and integrate it
into the installer. My understanding was Kyle McMartin was
going to do that. Please wait until he can provide an installer
image for you to test.

In general, I haven't looked at our build process in a while.
You can take a look at the "Developer Resources" links at the bottom
of the www.parisc-linux.org navigation bar. The "Build Kernel"
is the most recent one....and it looks stale since it refers
to CVS (which we stopped using about 8 monthes ago).
Use "git" instructions to get kernel source and then follow
the rest of the instructions if you still wish to build
your own kernel.

hth,
grant

> 
> any suggestions or readings
> 
> ram
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Build fixes for 2.6.21, should be nothing objectionable here.

The following changes since commit c68644d3304d217d50b8f0a179d4aa7e5a85a5bc:
  Ralf Baechle (1):
        [MIPS] Make SMTC_IDLE_HOOK_DEBUG a proper option in Kconfig.debug.

are found in the git repository at:

  /pub/scm/linux/kernel/git/kyle/parisc-2.6.git

Kyle McMartin (6):
      [PARISC] Remove __read_mostly annotation from command_line
      [PARISC] clocksource_cr16: Use clocksource_change_rating()
      [PARISC] time: Convert clocksource is_continuous to flag
      [PARISC] time: clocksource lost update_callback
      [PARISC] parisc-agp: Fix thinko const-ifying
      [PARISC] clocksource: Move update_cr16_clocksource later in boot

 arch/parisc/kernel/processor.c |    8 ++++++++
 arch/parisc/kernel/setup.c     |    2 +-
 arch/parisc/kernel/time.c      |   18 ++++++++++--------
 drivers/char/agp/parisc-agp.c  |    2 +-
 4 files changed, 20 insertions(+), 10 deletions(-)
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On Sat, Feb 24, 2007 at 08:51:29AM -0600, James Bottomley wrote:
> Since we're now changing the %sr3 from an IPI, we have to be careful
> about other places in the kernel where we're using temporary values in %
> sr3.

Isn't sr3 part of the context?
ie if we need to change the sr3 for a given context shouldn't
the code be modifying the value in the struct context instead
the actual register unless we know we are in that context?
The IPI code should know the sr3 was saved and where.

The change to assembly.h has me very nervous since I don't understand it.
You probably have it right and I'm being a bit dense.

I was trying to track down other uses of "mtsp sr3" and schedule()
seems to be one:
	schedule() -> context_switch() -> switch_mm() -> load_context()

I'm not seeing where this path disables local interrupts.
Sounds like it should before calling load_context() or we should
in our switch_mm() or add a prepare_arch_switch() to asm-parisc/system.h.

>   As far as I can tell, this is pretty much only non local cache
> flushing.

ISTR copy and one or two other places use sr3 as well.

> The following patch fixes the IPI to work (by not saving %sr3
> across an interruption) and patches up temporary %sr3 usage.
> 
> The sharp eyed will also notice I've corrected a Protection ID bug with
> the non current flushes.

That's not me :)
Was the fix to place "pgd = mfctl(25)" after the local_irq_disable()?

thanks,
grant

> 
> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
> 
> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
> index 00b1641..cb1dd17 100644
> --- a/arch/parisc/kernel/cache.c
> +++ b/arch/parisc/kernel/cache.c
> @@ -303,25 +303,28 @@ flush_user_cache_page_non_current(struct vm_area_struct *vma,
>  				  unsigned long vmaddr)
>  {
>  	/* save the current process space and pgd */
> -	unsigned long space = mfsp(3), pgd = mfctl(25);
> +	unsigned long space, pgd;
>  
> -	/* we don't mind taking interrups since they may not
> -	 * do anything with user space, but we can't
> -	 * be preempted here */
> -	preempt_disable();
> +	/* Have to disable interrupts here, since now %sr3 changes
> +	 * are carried by IPI and we can't have that happen while
> +	 * we're using a temporary %sr3 */
> +	local_irq_disable();
> +
> +	space = mfsp(3);
> +	pgd = mfctl(25);
>  
>  	/* make us current */
>  	mtctl(__pa(vma->vm_mm->pgd), 25);
> -	mtsp(vma->vm_mm->context, 3);
> +	load_context(vma->vm_mm->context);
>  
>  	flush_user_dcache_page(vmaddr);
>  	if(vma->vm_flags & VM_EXEC)
>  		flush_user_icache_page(vmaddr);
>  
>  	/* put the old current process back */
> -	mtsp(space, 3);
> +	load_context(space);
>  	mtctl(pgd, 25);
> -	preempt_enable();
> +	local_irq_enable();
>  }
>  
>  
> diff --git a/include/asm-parisc/assembly.h b/include/asm-parisc/assembly.h
> index 5587f00..efe9ebc 100644
> --- a/include/asm-parisc/assembly.h
> +++ b/include/asm-parisc/assembly.h
> @@ -435,7 +435,8 @@
>  	SAVE_SP  (%sr0, PT_SR0 (\regs))
>  	SAVE_SP  (%sr1, PT_SR1 (\regs))
>  	SAVE_SP  (%sr2, PT_SR2 (\regs))
> -	SAVE_SP  (%sr3, PT_SR3 (\regs))
> +; Can't save and restore %sr3, it may be update from IPI
> +;	SAVE_SP  (%sr3, PT_SR3 (\regs))
>  	SAVE_SP  (%sr4, PT_SR4 (\regs))
>  	SAVE_SP  (%sr5, PT_SR5 (\regs))
>  	SAVE_SP  (%sr6, PT_SR6 (\regs))
> @@ -475,7 +476,8 @@
>  	REST_SP  (%sr0, PT_SR0 (\regs))
>  	REST_SP  (%sr1, PT_SR1 (\regs))
>  	REST_SP  (%sr2, PT_SR2 (\regs))
> -	REST_SP  (%sr3, PT_SR3 (\regs))
> +; Can't save and restore %sr3, it may be updated from IPI
> +;	REST_SP  (%sr3, PT_SR3 (\regs))
>  	REST_SP  (%sr4, PT_SR4 (\regs))
>  	REST_SP  (%sr5, PT_SR5 (\regs))
>  	REST_SP  (%sr6, PT_SR6 (\regs))
> 
> 
> _______________________________________________
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> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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On 2/27/07, Kyle McMartin <kyle@parisc-linux.org> wrote:
>
> On Tue, Feb 27, 2007 at 03:52:27PM +0530, ram wrote:
> >
>
> No. I will tell you when they are fixed. Please realize this is a
> volunteer
> effort, and your problem is extremely low priority.
>


Hi


yes i understand,

iam just trying to understand , is this possible to help people to
test and give input if i can, dont think that iam asking anything extra

since iam curious to install debian on HP Server and use this box for other
services.

thanks,  i will await for your responce
mean time let me know if iam usefull help anything for testing

ram

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<br><br>
<div><span class="gmail_quote">On 2/27/07, <b class="gmail_sendername">Kyle McMartin</b> &lt;<a href="mailto:kyle@parisc-linux.org">kyle@parisc-linux.org</a>&gt; wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">On Tue, Feb 27, 2007 at 03:52:27PM +0530, ram wrote:<br>&gt;<br><br>No. I will tell you when they are fixed. Please realize this is a volunteer
<br>effort, and your problem is extremely low priority.<br></blockquote></div>
<div><br>&nbsp;</div>
<div>Hi</div>
<div>&nbsp;</div>
<div>&nbsp;</div>
<div>yes i understand, </div>
<div>&nbsp;</div>
<div>iam just trying to understand , is this possible to help people to</div>
<div>test and give input if i can, dont think that iam asking anything extra</div>
<div>&nbsp;</div>
<div>since iam curious to install debian on HP Server and use this box for other services.</div>
<div>&nbsp;</div>
<div>thanks,&nbsp; i will await for your responce</div>
<div>mean time let me know if iam usefull help anything for testing</div>
<div>&nbsp;</div>
<div>ram</div>

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On Sat, 2007-02-24 at 17:46 -0700, Grant Grundler wrote:
> Isn't sr3 part of the context?

It is the user context above the kernel, yes.

> ie if we need to change the sr3 for a given context shouldn't
> the code be modifying the value in the struct context instead

That's what tausq's change does.  It updates active_mm->context but then
it has to propagate the change on an SMP system, which is what the IPI
is supposed to do.

> the actual register unless we know we are in that context?

That's why the IPI checks current->active_mm against the mm being
changed.  If the CPU isn't executing in that context, nothing happens.
If it has, since we just changed mm->context, the new context gets
loaded into sr3, as it should be.

> The IPI code should know the sr3 was saved and where.

It does: in mm->context.

> The change to assembly.h has me very nervous since I don't understand it.
> You probably have it right and I'm being a bit dense.

Actually, I think it's pointless saving any space register for an
interrupt ... no interrupt should muck with the space registers since no
interrupt should ever be mucking with anything in user context ...
However, sr3 is special ... even if we get interrupts mucking with space
registers, they'll never touch sr3.

> I was trying to track down other uses of "mtsp sr3" and schedule()
> seems to be one:
> 	schedule() -> context_switch() -> switch_mm() -> load_context()
> 
> I'm not seeing where this path disables local interrupts.

It doesn't need to.  The IPI either updates sr3 or it doesn't.  The
load_context() will actually update it anyway, and sr3 isn't used until
the kernel accesses userspace, which is nowhere in that sequence, so
it's all quite safe.

> Sounds like it should before calling load_context() or we should
> in our switch_mm() or add a prepare_arch_switch() to asm-parisc/system.h.

Not really ... like I said, the IPI's effect will be known even if we're
beginning a context switch.

> >   As far as I can tell, this is pretty much only non local cache
> > flushing.
> 
> ISTR copy and one or two other places use sr3 as well.

No, pa_memcpy uses sr1 and sr2 ... it's only the non-local flushing that
uses sr3.

> > The following patch fixes the IPI to work (by not saving %sr3
> > across an interruption) and patches up temporary %sr3 usage.
> > 
> > The sharp eyed will also notice I've corrected a Protection ID bug with
> > the non current flushes.
> 
> That's not me :)
> Was the fix to place "pgd = mfctl(25)" after the local_irq_disable()?

No, it was changing the mtsp(xx, 3) to load_context(xx).  The problem is
that if we don't update %cr8 then the new context in sr3 is completely
ineffective since the protection IDs will mismatch in the TLBs, so, as
far as I can tell, the non local flush was never effective.

James


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> Actually, I think it's pointless saving any space register for an
> interrupt ... no interrupt should muck with the space registers since no
> interrupt should ever be mucking with anything in user context ...

You have to watch out for "be,l" which mucks with sr0.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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On Sat, 2007-02-24 at 23:27 -0500, John David Anglin wrote:
> You have to watch out for "be,l" which mucks with sr0.

But practically, the kernel's not going to link to a new space, and the
user can't.

But the point isn't that we might change them ... it's that by
convention we always know what their values should be, so we didn't
really need to save them (except sr1 and sr2 from the kernel).  And
actually, that's a potential (but I suspect never seen) bug in that this
code doesn't set the space registers aggressively enough for a trap from
user context.

James


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> On Sat, 2007-02-24 at 23:27 -0500, John David Anglin wrote:
> > You have to watch out for "be,l" which mucks with sr0.
> 
> But practically, the kernel's not going to link to a new space, and the
> user can't.

>>>From a hardware standpoint, the user can change sr0 through sr4.
Changing sr4 in user space isn't going to work.  However,
in the 32-bit hpux runtime, the user is free to change sr0 through
sr3 in whatever way they want.  At least at one time, there
was a desire to provide hpux runtime compatibility.  So, a branch
sequence like the following

	ldsid (%r1),%r31
	mtps %r31,%sr3
	be 0(%sr3,%r1)

should work in linux even if it's not efficient.  I picked sr3
in the example since it's no longer saved on interrupts with your
patch.  The branch will work if the kernel restores on interrupt
return the value used in sr4 through sr7.  However, then the user
can't use sr3 for any other purpose.

> But the point isn't that we might change them ... it's that by
> convention we always know what their values should be, so we didn't
> really need to save them (except sr1 and sr2 from the kernel).  And
> actually, that's a potential (but I suspect never seen) bug in that this
> code doesn't set the space registers aggressively enough for a trap from
> user context.

I don't see how the kernel can know what should be in sr0 through sr3,
and I think the user can use these registers for any purpose in the
32-bit runtime.  In wide mode, things are different as the OS is allowed
to change the space registers at any time (see note for ldsid insn).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, 2007-02-25 at 12:04 -0500, John David Anglin wrote:
> > On Sat, 2007-02-24 at 23:27 -0500, John David Anglin wrote:
> > > You have to watch out for "be,l" which mucks with sr0.
> > 
> > But practically, the kernel's not going to link to a new space, and the
> > user can't.
> 
> >From a hardware standpoint, the user can change sr0 through sr4.
> Changing sr4 in user space isn't going to work.  However,
> in the 32-bit hpux runtime, the user is free to change sr0 through
> sr3 in whatever way they want.  At least at one time, there
> was a desire to provide hpux runtime compatibility.  So, a branch
> sequence like the following
> 
> 	ldsid (%r1),%r31
> 	mtps %r31,%sr3
> 	be 0(%sr3,%r1)
> 
> should work in linux even if it's not efficient.

I think you'll find that unless %sr3 is zero or your current space,
you'll get a protection trap (and if it's zero, you'll likely get a
privilege trap).

Linux doesn't use spaces like HPUX, which is why hpux compatibility at
this level just won't work.  In Linux, every user process runs in a
different, isolated space.

>   I picked sr3
> in the example since it's no longer saved on interrupts with your
> patch.  The branch will work if the kernel restores on interrupt
> return the value used in sr4 through sr7.  However, then the user
> can't use sr3 for any other purpose.
> 
> > But the point isn't that we might change them ... it's that by
> > convention we always know what their values should be, so we didn't
> > really need to save them (except sr1 and sr2 from the kernel).  And
> > actually, that's a potential (but I suspect never seen) bug in that this
> > code doesn't set the space registers aggressively enough for a trap from
> > user context.
> 
> I don't see how the kernel can know what should be in sr0 through sr3,
> and I think the user can use these registers for any purpose in the
> 32-bit runtime.  In wide mode, things are different as the OS is allowed
> to change the space registers at any time (see note for ldsid insn).

The user space convention on linux says that sr0,1,3-7 should contain
the current space and sr2 contains zero for gateway operations.
Theoretically, the user can stash values in sr0-3 as long as they're
never used; practically, nothing does this.

However, this is pretty much moot ... the more agressive space shifting
code will have to loop over all of the space registers in the context,
so it will be saving and restoring them all.

James

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Xref: news.gmane.org gmane.linux.ports.parisc:24408

Make sure we alter the context on the local CPU, but all possible uses
of the deprecated space on the other cpus.

The sharp eyed will also notice I've corrected a Protection ID bug with
the non current flushes.


Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

---

Here's take II.  It corrects the problem with the prior one not being
agressive enough .. plus sr3 is the wrong register to alter from
userspace ... we really need to do sr4-7.

James

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 00b1641..f8d4d92 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -18,6 +18,8 @@
 #include <linux/module.h>
 #include <linux/seq_file.h>
 #include <linux/pagemap.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
 
 #include <asm/pdc.h>
 #include <asm/cache.h>
@@ -303,25 +305,28 @@ flush_user_cache_page_non_current(struct vm_area_struct *vma,
 				  unsigned long vmaddr)
 {
 	/* save the current process space and pgd */
-	unsigned long space = mfsp(3), pgd = mfctl(25);
+	unsigned long space, pgd;
 
-	/* we don't mind taking interrups since they may not
-	 * do anything with user space, but we can't
-	 * be preempted here */
-	preempt_disable();
+	/* Have to disable interrupts here, since now %sr3 changes
+	 * are carried by IPI and we can't have that happen while
+	 * we're using a temporary %sr3 */
+	local_irq_disable();
+
+	space = mfsp(3);
+	pgd = mfctl(25);
 
 	/* make us current */
 	mtctl(__pa(vma->vm_mm->pgd), 25);
-	mtsp(vma->vm_mm->context, 3);
+	load_context(vma->vm_mm->context);
 
 	flush_user_dcache_page(vmaddr);
 	if(vma->vm_flags & VM_EXEC)
 		flush_user_icache_page(vmaddr);
 
 	/* put the old current process back */
-	mtsp(space, 3);
+	load_context(space);
 	mtctl(pgd, 25);
-	preempt_enable();
+	local_irq_enable();
 }
 
 
@@ -574,3 +579,34 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 		__flush_cache_page(vma, vmaddr);
 
 }
+
+void __flush_tlb_mm(void *mmv)
+{
+	struct mm_struct *mm = (struct mm_struct *)mmv;
+	struct pt_regs *regs = get_irq_regs();
+	unsigned long sr3;
+	int i;
+
+	if (mm != current->active_mm)
+		return;
+
+	/* sr3 is alterable by the user, so if we trapped from
+	 * user space, check sr7 instead */
+	if (in_interrupt()) {
+		if (regs->sr[7] != 0)
+			sr3 = regs->sr[7];
+		else
+			sr3 = mfsp(3);
+		/* needed to set up protection ID */
+		load_context(mm->context);
+	} else {
+		/* on_each_cpu makes one non interrupt call,
+		 * this is it */
+		load_context(mm->context);
+		return;
+	}
+
+	for (i = 0; i < 8; i++)
+		if (regs->sr[i] == sr3)
+			regs->sr[i] = mm->context;
+}
diff --git a/include/asm-parisc/assembly.h b/include/asm-parisc/assembly.h
diff --git a/include/asm-parisc/tlbflush.h b/include/asm-parisc/tlbflush.h
index 2e8c2bd..45d04ce 100644
--- a/include/asm-parisc/tlbflush.h
+++ b/include/asm-parisc/tlbflush.h
@@ -39,12 +39,7 @@ extern void flush_tlb_all_local(void *);
  * etc. do not do that).
  */
 
-static inline void __flush_tlb_mm(void *mmv)
-{
-	struct mm_struct *mm = (struct mm_struct *)mmv;
-	if (mm == current->active_mm)
-		load_context(mm->context);
-}
+void __flush_tlb_mm(void *mmv);
 
 static inline void flush_tlb_mm(struct mm_struct *mm)
 {


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> > 	ldsid (%r1),%r31
> > 	mtps %r31,%sr3
> > 	be 0(%sr3,%r1)
> > 
> > should work in linux even if it's not efficient.
> 
> I think you'll find that unless %sr3 is zero or your current space,
> you'll get a protection trap (and if it's zero, you'll likely get a
> privilege trap).

At the moment, the following little bit code seems to work
on a UP system:

0x00010444 <main+0>:    ldil L%10000,r1
0x00010448 <main+4>:    ldo 444(r1),r1
0x0001044c <main+8>:    ldsid (r1),r31
0x00010450 <main+12>:   mtsp r31,sr3
0x00010454 <main+16>:   be 0(sr3,r1)
0x00010458 <main+20>:   nop
0x0001045c <main+24>:   bv r0(rp)
0x00010460 <main+28>:   ldi 0,ret0

Of course, sr3 should be the current space.  Whether it is or not is
an interesting question as gdb doesn't seem to be able to figure out
what the space registers contain.  When I run the above under gdb,
it reports that all the space registers are 0.  If I run the program
and signal an abort, I see the following in the core dump:

sr4            0xb3     179
sr0            0x0      0
sr1            0xb3     179
sr2            0x0      0
sr3            0xffff   65535
sr5            0xb3     179
sr6            0xb3     179
sr7            0xb3     179

This is with your patch installed.

> The user space convention on linux says that sr0,1,3-7 should contain
> the current space and sr2 contains zero for gateway operations.
> Theoretically, the user can stash values in sr0-3 as long as they're
> never used; practically, nothing does this.

I can think of a use.  There are certain situation in gcc where
we need to generate a long branch.  We need r1 for this but it
may be live.  So, we stash it in the frame marker and restore
it in the delay slot of the branch.  It might be better to use
a space register to save r1.

I don't think the linux user space convention regarding space
registers and calling conventions is documented.

Regarding the requirement that sr2 always contain zero for
gateway operations, I think this is unnecessary.  For example,
I see the following in libc.a:

00000000 <syscall>:
   0:   0f d9 12 81     stw r25,-10(sp)
   4:   27 c1 10 16     fldw -10(sp),fr22
   8:   6b c2 3f d9     stw rp,-14(sp)
   c:   08 18 02 59     copy r24,r25
  10:   6f c3 00 80     stw,ma r3,40(sp)
  14:   08 17 02 58     copy r23,r24
  18:   08 1a 02 5c     copy r26,ret0
  1c:   4b d5 3f 09     ldw -7c(sp),r21
  20:   4b d6 3f 11     ldw -78(sp),r22
  24:   4b d7 3f 19     ldw -74(sp),r23
  28:   27 c1 12 16     fstw fr22,-10(sp)
  2c:   0f c1 10 9a     ldw -10(sp),r26
  30:   08 00 02 40     nop
  34:   e4 00 82 00     be,l 100(sr2,r0),sr0,r31
  38:   08 1c 02 54     copy ret0,r20

The branch to the gateway page always seems to be preceded by a nop.
It could be replaced by a mtsp instruction:

	mtsp %r0,%sr2

This would ensure that sr2 is always set correctly for the branch to
the gateway page.

Personally, I would like to see sr0 through sr3 available for general
use.  I would also sr4 through sr7 to be stable (i.e., not change during
the lifetime of an application).  Obviously, sr0 through sr3 would
be call clobbered.

Don't like what's going on with fr22 in the above code.  Seems like a
GCC optimization bug since it looks like there are a few general registers
that could be used.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Because this is non-PIC code the save/restore of r19 has been turned
> into a NOP.

Why a NOP?  Wouldn't a newline be ok?

> > It could be replaced by a mtsp instruction:
> >
> >         mtsp %r0,%sr2
> >
> > This would ensure that sr2 is always set correctly for the branch to
> > the gateway page.
> 
> ... only for people with a recent enough glibc.

Sure!  However, I thought I saw people requesting new syscalls, etc ;)

> > Don't like what's going on with fr22 in the above code.  Seems like a
> > GCC optimization bug since it looks like there are a few general registers
> > that could be used.
> 
> Why a bug? It's a register just like any other.

It's an optimization bug because copying from a general to a floating
register has to be done through memory.  A stack local would save
a read and write.  In this case, all the manipulation is done before
the syscall and there would appear to be sufficient general registers
available to do the job.  GCC's register allocator should be smart
enough to figure this out...

I haven't studied this in detail but GCC on the PA allocates floating
registers first.  It's claimed in the code that this results in better
code.  This allocation scheme was probably based on work done at Utah
in the early 90's.  So, things may have changed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Here's take II.  It corrects the problem with the prior one not being
> agressive enough .. plus sr3 is the wrong register to alter from
> userspace ... we really need to do sr4-7.

This one is less stable your previous change + reversion of tausq's
SMP TLB opimization patch.  GCC build doesn't get far before wierdness
occurs (strange characters being read from files):

gcc -c -g -fkeep-inline-functions      -gnatpg -gnata -I- -I. -Iada -I../../gcc/
gcc/ada ../../gcc/gcc/ada/exp_ch6.adb -o ada/exp_ch6.o
/tmp/ccaWBgD1.s: Assembler messages:
/tmp/ccaWBgD1.s:2436: Error: Undefined register: '%s'.
/tmp/ccaWBgD1.s:2436: Error: Field out of range [0..31] (-1).
/tmp/ccaWBgD1.s:2436: Error: Undefined register: '%s'.
/tmp/ccaWBgD1.s:2436: Error: Undefined register: '%s'.
/tmp/ccaWBgD1.s:2436: Error: Field out of range [0..31] (-1).
...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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On Sun, 2007-02-25 at 21:19 -0500, Carlos O'Donell wrote:
> current->comm, and cr8 included in the dump.

Thanks!

> sr00-03  0000000000077000 0000000000000000 0000000000000000 0000000000077000
> sr04-07  0000000000077000 0000000000077000 0000000000077000 0000000000077000
> 
> IASQ: 0000000000077000 0000000000077000 IAOQ: 0000000040723f2c 0000000040723f2f
>  IIR: 43ffff40    ISR: 0000000000000000  IOR: 0000000000000000
>  CPU:        0   CR30: 000000009af10000 CR31: 0000000040848000
>  ORIG_R28: 0000000042c774c8
>  CR8: 00000000000001e0

Perfect, 0x1e8 on a 64 bit kernel (where SPACEID_SHIFT is 11) is
0x78000.  This means that the protection and the space are indeed
mismatched ... we just have to find out how, sigh!

>  current->comm: 000000009af253e8

Actually, current->comm should be printed as a %s: it's the name of the
faulting process.

>  IAOQ[0]: cuda_images+0xc14/0x3180
>  IAOQ[1]: cuda_images+0xc14/0x3180
>  RP(r2): 0x40bf0e1c

James


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On Sun, 2007-02-25 at 21:53 -0600, James Bottomley wrote:
> On Sun, 2007-02-25 at 21:19 -0500, Carlos O'Donell wrote:
> > current->comm, and cr8 included in the dump.
> 
> Thanks!
> 
> > sr00-03  0000000000077000 0000000000000000 0000000000000000 0000000000077000
> > sr04-07  0000000000077000 0000000000077000 0000000000077000 0000000000077000
> > 
> > IASQ: 0000000000077000 0000000000077000 IAOQ: 0000000040723f2c 0000000040723f2f
> >  IIR: 43ffff40    ISR: 0000000000000000  IOR: 0000000000000000
> >  CPU:        0   CR30: 000000009af10000 CR31: 0000000040848000
> >  ORIG_R28: 0000000042c774c8
> >  CR8: 00000000000001e0
> 
> Perfect, 0x1e8 on a 64 bit kernel (where SPACEID_SHIFT is 11) is
> 0x78000.  This means that the protection and the space are indeed
> mismatched ... we just have to find out how, sigh!

OK, I have a theory.  It has to do with the way we do flush_tlb_mm by
incrementing the spaceid.  This works in a single space per process
model.  However, a process with multiple threads has >1 scheduling
context which share spaces.  So, the theory goes that when we fork from
a thread, we execute flush_tlb_mm which bumps the context (space).  Then
we schedule another thread in the same process.  However, this picks up
its space registers from the task rather than the mm->context, so it
uses the old mm.  Now, the load context has updated %cr8, the protection
ID.  However %cr8 isn't part of the task context, so we end up executing
in the old context with the protection of the new one ... resulting in a
protection ID trap.

James


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Subject: Re: [parisc-linux] Re: NPTL for hppa-linux is not backwards
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> I did a couple of tests and I verified that I have no words to spare.
> Adding an extra "int __pad" forces the structure to grow by 8 bytes
> due to the "long long" alignment requirements.

Just reorder the fields so that the 32-bit fields are all in groups of 2 or 4.
All that should matter is that the padding word is one of the first four so
you can detect the old initializer data, and that __mutex is the 6th
member so the PTHREAD_COND_INITIALIZER text works out to be warning-free.
In fact, that doesn't really matter since the initializer contents are all
zero regardless of spelling.  If need be, you can add a new first union
member not called __data, with a layout that makes PTHREAD_COND_INITIALIZER
happy. 
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hi

iam trying to install Debian on HP R class 9000
but i dont see iam able to make success
can some one help me ot resolve this problem


http://picasaweb.google.com/talk2ram/HpProblems

any solution for this problem
any help will be great

ram

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<br><br>
<div>&nbsp;</div>
<div>hi</div>
<div>&nbsp;</div>
<div>iam trying to install Debian on HP R class 9000</div>
<div>but i dont see iam able to make success</div>
<div>can some one help me ot resolve this problem</div>
<div>&nbsp;</div>
<div>&nbsp;</div>
<div><a onclick="return top.js.OpenExtLink(window,event,this)" href="http://picasaweb.google.com/talk2ram/HpProblems" target="_blank">http://picasaweb.google.com/talk2ram/HpProblems</a></div>
<div>&nbsp;</div>
<div>any solution for this problem</div>
<div>any help will be great</div><span class="sg">
<div>&nbsp;</div>
<div>ram<br>&nbsp;</div></span>

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Hi all

I have HP R Class 900 Server

I have downloaded  debian hppa

and reading the document of PA-RISK How to boot

and when boot started i select boot from

boot p1( is the CDROM connected)

I got the menu, and select English, and Country, after that, its reading CD

after a 15min i get a error on console

Kernel Panic- not syncing:drivers/parisc/ccio-dma.c: ccio_alloc_range() I/O
MMU is out of mapping resources

any help and suggestions

Ram

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<br><br><span class="gmail_quote"><br></span>
<div>Hi all</div>
<div>&nbsp;</div>
<div>I have HP R Class 900 Server</div>
<div>&nbsp;</div>
<div>I have downloaded&nbsp; debian hppa</div>
<div>&nbsp;</div>
<div>and reading the document of PA-RISK How to boot</div>
<div>&nbsp;</div>
<div>and when boot started i select boot from </div>
<div>&nbsp;</div>
<div>boot p1( is the CDROM connected)</div>
<div>&nbsp;</div>
<div>I got the menu, and select English, and Country, after that, its reading CD</div>
<div>&nbsp;</div>
<div>after a 15min i get a error on console</div>
<div>&nbsp;</div>
<div>Kernel Panic- not syncing:drivers/parisc/ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping resources</div>
<div>&nbsp;</div>
<div>any help and suggestions</div><span class="sg">
<div>&nbsp;</div>
<div>Ram</div></span>

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_______________________________________________
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On Mon, Feb 26, 2007 at 08:12:55PM +0530, ram wrote:
> Kernel Panic- not syncing:drivers/parisc/ccio-dma.c: ccio_alloc_range() I/O
> MMU is out of mapping resources

Yeah, this is a known problem. Current workaround is to hack the
ccio driver to increase the minimum amount of IOVA space allocated.

We need to make this a kernel parameter.

grant
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On 2/26/07, Grant Grundler <grundler@parisc-linux.org> wrote:
>
> On Mon, Feb 26, 2007 at 08:12:55PM +0530, ram wrote:
> > Kernel Panic- not syncing:drivers/parisc/ccio-dma.c: ccio_alloc_range()
> I/O
> > MMU is out of mapping resources
>
> Yeah, this is a known problem. Current workaround is to hack the
> ccio driver to increase the minimum amount of IOVA space allocated.
>
> We need to make this a kernel parameter.



Hi

thanks for the quick reply
can you suggest me some document
how can i hack the code make my HP R class work with debian

any suggestions or readings

ram

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<br><br>
<div><span class="gmail_quote">On 2/26/07, <b class="gmail_sendername">Grant Grundler</b> &lt;<a href="mailto:grundler@parisc-linux.org">grundler@parisc-linux.org</a>&gt; wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">On Mon, Feb 26, 2007 at 08:12:55PM +0530, ram wrote:<br>&gt; Kernel Panic- not syncing:drivers/parisc/ccio-
dma.c: ccio_alloc_range() I/O<br>&gt; MMU is out of mapping resources<br><br>Yeah, this is a known problem. Current workaround is to hack the<br>ccio driver to increase the minimum amount of IOVA space allocated.<br><br>We need to make this a kernel parameter.
</blockquote>
<div>&nbsp;</div>
<div>&nbsp;</div>
<div>Hi</div>
<div>&nbsp;</div>
<div>thanks for the quick reply</div>
<div>can you suggest me some document </div>
<div>how can i hack the code make my HP R class work with debian</div>
<div>&nbsp;</div>
<div>any suggestions or readings</div>
<div>&nbsp;</div>
<div>ram<br>&nbsp;</div></div><br>

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On Sun, 2007-02-25 at 19:33 -0500, John David Anglin wrote:
> This one is less stable your previous change + reversion of tausq's
> SMP TLB opimization patch.  GCC build doesn't get far before wierdness
> occurs (strange characters being read from files):
> 
> gcc -c -g -fkeep-inline-functions      -gnatpg -gnata -I- -I. -Iada -I../../gcc/
> gcc/ada ../../gcc/gcc/ada/exp_ch6.adb -o ada/exp_ch6.o
> /tmp/ccaWBgD1.s: Assembler messages:
> /tmp/ccaWBgD1.s:2436: Error: Undefined register: '%s'.
> /tmp/ccaWBgD1.s:2436: Error: Field out of range [0..31] (-1).
> /tmp/ccaWBgD1.s:2436: Error: Undefined register: '%s'.
> /tmp/ccaWBgD1.s:2436: Error: Undefined register: '%s'.
> /tmp/ccaWBgD1.s:2436: Error: Field out of range [0..31] (-1).
> ...

Hmm ... perhaps there's a reason every other architecture's SMP
flush_tlb_mm() implementation is much more complicated than ours ...

James


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On Sun, 2007-02-25 at 23:19 -0600, James Bottomley wrote:
> OK, I have a theory.  It has to do with the way we do flush_tlb_mm by
> incrementing the spaceid.  This works in a single space per process
> model.  However, a process with multiple threads has >1 scheduling
> context which share spaces.  So, the theory goes that when we fork from
> a thread, we execute flush_tlb_mm which bumps the context (space).  Then
> we schedule another thread in the same process.  However, this picks up
> its space registers from the task rather than the mm->context, so it
> uses the old mm.  Now, the load context has updated %cr8, the protection
> ID.  However %cr8 isn't part of the task context, so we end up executing
> in the old context with the protection of the new one ... resulting in a
> protection ID trap.

Based on the theory, I managed to reproduce the problem on ioz (you just
have to increase N to be much greater than the number of CPUs you have)
and tried a little fix, which seems to work for ioz.  Could you try this
out on your a500?

Thanks,

James
Index: BUILD-2.6/arch/parisc/kernel/process.c
===================================================================
--- BUILD-2.6.orig/arch/parisc/kernel/process.c	2007-02-27 15:52:54.000000000 -0800
+++ BUILD-2.6/arch/parisc/kernel/process.c	2007-02-27 15:57:24.000000000 -0800
@@ -395,3 +395,30 @@ get_wchan(struct task_struct *p)
 	} while (count++ < 16);
 	return 0;
 }
+
+struct task_struct *__switch_to(struct task_struct *prev,
+			       struct task_struct *next)
+{
+	unsigned long sr3;
+	unsigned long newsr3 = mfsp(3);
+	struct pt_regs *regs = &next->thread.regs;
+
+	/* need to be executing in user context */
+	if (regs->iasq[0] != 0 || regs->iasq[1] != 0) {
+		sr3 = regs->sr[7];
+
+		/* need our current space to be different from our
+		 * new one.  Note, this trips a lot if we're in a
+		 * syscall not an interrupt from userspace, but in the
+		 * syscall case, this is a nop since the space is
+		 * explicitly reconstructed on return from syscall */
+		if (unlikely(sr3 != 0 && sr3 != newsr3)) {
+			int i;
+
+			for (i = 0; i < 8; i++)
+				if (regs->sr[i] == sr3)
+					regs->sr[i] = newsr3;
+		}
+	}
+	return _switch_to(prev, next);
+}
Index: BUILD-2.6/include/asm-parisc/system.h
===================================================================
--- BUILD-2.6.orig/include/asm-parisc/system.h	2007-02-27 15:53:12.000000000 -0800
+++ BUILD-2.6/include/asm-parisc/system.h	2007-02-27 15:54:33.000000000 -0800
@@ -43,9 +43,10 @@ struct pa_psw {
 struct task_struct;
 
 extern struct task_struct *_switch_to(struct task_struct *, struct task_struct *);
+extern struct task_struct *__switch_to(struct task_struct *, struct task_struct *);
 
 #define switch_to(prev, next, last) do {			\
-	(last) = _switch_to(prev, next);			\
+	(last) = __switch_to(prev, next);			\
 } while(0)
 
 /*



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On 2/26/07, ram <talk2ram@gmail.com> wrote:
>
>
>
>
> hi
>
> iam trying to install Debian on HP R class 9000
> but i dont see iam able to make success
> can some one help me ot resolve this problem
>
>
> http://picasaweb.google.com/talk2ram/HpProblems
>
> any solution for this problem
> any help will be great
>
> ram
>
>


any update on this issue

ram

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<br><br>
<div><span class="gmail_quote">On 2/26/07, <b class="gmail_sendername">ram</b> &lt;<a href="mailto:talk2ram@gmail.com">talk2ram@gmail.com</a>&gt; wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div><span class="e" id="q_110fe809b0fa9461_0"><br><br>
<div>&nbsp;</div>
<div>hi</div>
<div>&nbsp;</div>
<div>iam trying to install Debian on HP R class 9000</div>
<div>but i dont see iam able to make success</div>
<div>can some one help me ot resolve this problem</div>
<div>&nbsp;</div>
<div>&nbsp;</div>
<div><a onclick="return top.js.OpenExtLink(window,event,this)" href="http://picasaweb.google.com/talk2ram/HpProblems" target="_blank">http://picasaweb.google.com/talk2ram/HpProblems</a></div>
<div>&nbsp;</div>
<div>any solution for this problem</div>
<div>any help will be great</div><span>
<div>&nbsp;</div>
<div>ram<br>&nbsp;</div></span></span></div></blockquote>
<div>&nbsp;</div>
<div>&nbsp;</div>
<div>any update on this issue</div>
<div>&nbsp;</div>
<div>ram</div><br>&nbsp;</div><br>

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let's see if this works...
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On Thu, Mar 01, 2007 at 10:38:13AM -0500, Kyle McMartin wrote:
> let's see if this works...
>
X-Greylist: delayed 514 seconds by postgrey-1.27 at palinux; Thu, 01 Mar 2007
08:49:49 MST

Ok. Let's hope this cuts down some of the spam to @parisc-linux.org
even more...
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James,

> Based on the theory, I managed to reproduce the problem on ioz (you just
> have to increase N to be much greater than the number of CPUs you have)
> and tried a little fix, which seems to work for ioz.  Could you try this
> out on your a500?

I tried the change on my c3750.  It's survived four full GCC builds
and checks with no hung process in the libjava testsuite.  While this
might have happened before, the probability of this happening was low.
So, I think this change is a good one ;)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:24425

On Sat, Mar 03, 2007 at 07:40:24PM -0600, Andrew Gaffney wrote:
> John David Anglin wrote:
> >>On 3/1/07, Kyle McMartin <kyle@mcmartin.ca> wrote:
> >>>On Thu, Mar 01, 2007 at 10:38:13AM -0500, Kyle McMartin wrote:
> >>>>let's see if this works...
> >>>>
> >>>X-Greylist: delayed 514 seconds by postgrey-1.27 at palinux; Thu, 01 Mar 
> >>>2007
> >>>08:49:49 MST
> >>>
> >>>Ok. Let's hope this cuts down some of the spam to @parisc-linux.org
> >>>even more...
> >>Thanks dude!
> >
> >The downside is increased delay and probability of messages
> >being lost.  The company that I do most of my work for hasn't
> >been very happy with its mail service provider.  It uses
> >greylisting.  On the otherhand, it may work better for a list.
> 
> Does this list get a lot of spam? I've only been subscribed to it for a 
> about a month, but I haven't seen any at all. Is my SA setup just that good?
> 

the list isn't effected because it's not hosted on palinux. this effects
*@parisc-linux.org, which, for me at least, receives way too much spam.

the list gets no spam these days because non-subscriber messages are silently
queued (silently, because people tend to whine about it.)
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From: "James K. Love" <jlove@scires.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] sd: Adds flexible disk (TEAC FC-1,
 scsi-floppy) support to scsi disk driver
Date: Mon, 05 Mar 2007 17:17:38 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:24426

All:

I've just merged my flexible disk changes (see thread link below) into the
latest scsi disk driver source.  These changes add scsi-floppy disk support
(particularly HP's revs of the TEAC FC-1 drive) to the scsi disk driver.  Per
Matthew's suggestion, I'm cowardly posting here first to get some feedback,
rather than posting straight to linux-scsi.  BTW, I will also provide a patch
for Debian Sarge, if anyone out there is interested in that too.  My patch
submittal email is appended below.

James

http://lists.parisc-linux.org/pipermail/parisc-linux/2007-February/031188.html

---

This patch adds flexible disk support for the TEAC FC-1 scsi-floppy drive to the
scsi disk driver (sd.c).  OEM versions (FD-235HS715, etc.) of the FC-1 are
prevalent in older HP parisc workstations.  This patch may also allow similar
scsi-floppy drives to work on other platforms, but I have not tested this on
anything other than HP OEM TEAC FC-1 drives.

Signed-off-by: James K. Love <jlove@scires.com>

---

This patch is essentially a port of the MACH scsi driver's flexible disk bits to
the latest 2.6 linux kernel, which provides rudimentary scsi-floppy support for
drives in older HP parisc workstations.  The changes have been tested with the
TEAC FC-1 on several older HP parisc boxes (models 715 & 755).  Some userspace
floppy apps may also need to be made scsi-floppy aware.  For instance, fdformat
is broken.  I'm using udev to create a sym-link between the scsi device and fd0.
 With the link in place, the mtools functions work well and mformat can be used
to msdos format scsi floppies.  This diff was created against the latest in the
parisc-2.6 git tree (2.6.20) and was also tested against Linus' latest linux-2.6
git tree (2.6.21-rc2).

---

--- ./drivers/scsi/sd.orig	2007-02-25 22:46:56.000000000 -0500
+++ ./drivers/scsi/sd.c	2007-03-04 21:26:00.000000000 -0500
@@ -49,6 +49,7 @@
 #include <linux/delay.h>
 #include <linux/mutex.h>
 #include <asm/uaccess.h>
+#include <asm/byteorder.h>

 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
@@ -275,6 +276,79 @@ static struct scsi_driver sd_template =
 	.issue_flush		= sd_issue_flush,
 };

+/* store the scsi-floppy geometry info */
+static unsigned int sf_heads=0, sf_sectors=0, sf_cylinders=0;
+
+/*
+ * This struct was taken directly from the MACH micro-kernel scsi
+ * driver source with only minor modification.
+ * Page 5 - flexible disk drive geometry page structure.
+ */
+typedef struct {
+#ifdef __BIG_ENDIAN_BITFIELD
+	unsigned char   ps        : 1;
+	unsigned char   reserved1 : 1;
+	unsigned char   page_code : 6;
+#else
+	unsigned char   page_code : 6;
+	unsigned char   reserved1 : 1;
+	unsigned char   ps        : 1;
+#endif
+	unsigned char   page_length;
+	unsigned char   transfer_rate_msb;
+	unsigned char   transfer_rate_lsb;
+	unsigned char   number_of_heads;
+	unsigned char   sectors_per_track;
+	unsigned char   bytes_per_sector_msb;
+	unsigned char   bytes_per_sector_lsb;
+	unsigned char   number_of_cylinders_msb;
+	unsigned char   number_of_cylinders_lsb;
+	unsigned char   starting_cyl_wpc_msb;
+	unsigned char   starting_cyl_wpc_lsb;
+	unsigned char   starting_cyl_rwc_msb;
+	unsigned char   starting_cyl_rwc_lsb;
+	unsigned char   drive_step_rate_msb;
+	unsigned char   drive_step_rate_lsb;
+	unsigned char   drive_step_pule_width;
+	unsigned char   head_settle_delay_msb;
+	unsigned char   head_settle_delay_lsb;
+	unsigned char   motor_on_delay;
+	unsigned char   motor_off_delay;
+#ifdef __BIG_ENDIAN_BITFIELD
+	unsigned char   true_rdy            : 1;
+	unsigned char   start_sector_number : 1;
+	unsigned char   motor_on            : 1;
+	unsigned char   reserved2           : 5;
+	unsigned char   reserved3           : 4;
+	unsigned char   step_pulse_per_cyl  : 4;
+#else
+	unsigned char   reserved2           : 5;
+	unsigned char   motor_on            : 1;
+	unsigned char   start_sector_number : 1;
+	unsigned char   true_rdy            : 1;
+	unsigned char   step_pulse_per_cyl  : 4;
+	unsigned char   reserved3           : 4;
+#endif
+	unsigned char   write_precomp_value;
+	unsigned char   head_load_delay;
+	unsigned char   head_unload_delay;
+#ifdef __BIG_ENDIAN_BITFIELD
+	unsigned char   pin_34              : 4;
+	unsigned char   pin_2               : 4;
+	unsigned char   pin_4               : 4;
+	unsigned char   pin_1               : 4;
+#else
+	unsigned char   pin_2               : 4;
+	unsigned char   pin_34              : 4;
+	unsigned char   pin_1               : 4;
+	unsigned char   pin_4               : 4;
+#endif
+	unsigned char   reserved4;
+	unsigned char   reserved5;
+	unsigned char   reserved6;
+	unsigned char   reserved7;
+} scsi_mode_sense_page5_t  __attribute__ ((packed));
+
 /*
  * Device no to disk mapping:
  *
@@ -642,6 +716,14 @@ static int sd_getgeo(struct block_device
 	struct Scsi_Host *host = sdp->host;
 	int diskinfo[4];

+	/* If this is a scsi floppy */
+	if (sdp->removable && (sdp->type != TYPE_MOD)) {
+		geo->heads = sf_heads;
+		geo->sectors = sf_sectors;
+		geo->cylinders = sf_cylinders;
+		return 0;
+	}
+
 	/* default to most commonly used values */
         diskinfo[0] = 0x40;	/* 1 << 6 */
        	diskinfo[1] = 0x20;	/* 1 << 5 */
@@ -1011,12 +1093,21 @@ static int media_not_present(struct scsi

 	if (!scsi_sense_valid(sshdr))
 		return 0;
-	/* not invoked for commands that could return deferred errors */
-	if (sshdr->sense_key != NOT_READY &&
-	    sshdr->sense_key != UNIT_ATTENTION)
-		return 0;
-	if (sshdr->asc != 0x3A) /* medium not present */
-		return 0;
+
+	/* If this is a scsi floppy */
+	if (sdkp->device->removable && (sdkp->device->type != TYPE_MOD)) {
+		if ((sshdr->sense_key != NOT_READY)
+		    && (sshdr->asc != 0x4)) {	/* no scsi-floppy media */
+			return 0;
+		}
+	} else {
+		/* not invoked for commands that could return deferred errors */
+		if (sshdr->sense_key != NOT_READY &&
+		    sshdr->sense_key != UNIT_ATTENTION)
+			return 0;
+		if (sshdr->asc != 0x3A) /* medium not present */
+			return 0;
+	}

 	set_media_not_present(sdkp);
 	return 1;
@@ -1535,6 +1626,11 @@ static int sd_revalidate_disk(struct gen
 	struct scsi_device *sdp = sdkp->device;
 	unsigned char *buffer;
 	unsigned ordered;
+	char mode_buf[0xFF];
+	scsi_mode_sense_page5_t* page5 = NULL;
+	struct scsi_mode_data data;
+	int length = 0;
+	int res = 0;

 	SCSI_LOG_HLQUEUE(3, printk("sd_revalidate_disk: disk=%s\n", disk->disk_name));

@@ -1563,6 +1659,66 @@ static int sd_revalidate_disk(struct gen
 	sd_spinup_disk(sdkp, disk->disk_name);

 	/*
+	 * Assuming here that this check will suffice for ID'ing a scsi floppy.
+	 * Note that sd_spinup_disk sets media_present above.
+	 */
+	if (sdp->removable && (sdp->type != TYPE_MOD)
+	                   && sdkp->media_present) {
+		memset(&data, 0, sizeof(data));
+		memset(&mode_buf, 0, sizeof(mode_buf));
+
+		/* request the page 5 'flexible' sense data */
+		res = sd_do_mode_sense(sdp, 0, 5, mode_buf, 0xFF, &data, NULL);
+
+		if (!scsi_status_is_good(res)) {
+			printk(KERN_WARNING "(sd_revalidate_disk:) Flexible disk mode"
+			       " sense failure.\n");
+			goto out;
+		}
+
+		length = data.length - data.header_length - data.block_descriptor_length;
+		page5 = (scsi_mode_sense_page5_t *)(mode_buf + data.header_length
+		                                             + data.block_descriptor_length);
+
+		/* set sector size to 512 bytes, double-density media */
+		data.medium_type = 2;
+		data.device_specific &= ~0x90;
+		data.block_descriptor_length = 0;
+
+		page5->ps = 0;
+		page5->page_code &= ~0x80;
+		page5->sectors_per_track = page5->sectors_per_track *
+		                           (page5->bytes_per_sector_msb << 8 |
+		                           page5->bytes_per_sector_lsb) / 512;
+
+		page5->bytes_per_sector_msb = 2;
+		page5->bytes_per_sector_lsb = 0;
+
+		/* mode select to set geometry */
+                if (scsi_mode_select(sdp, 1, 0, 5, (char *)page5, length,
+		                     SD_TIMEOUT, SD_MAX_RETRIES, &data, NULL)) {
+			printk(KERN_WARNING "(sd_revalidate_disk:) Flexible disk mode"
+			       " select failure.\n");
+			goto out;
+		}
+
+		/* read newly selected Page 5 sense data */
+		res = sd_do_mode_sense(sdp, 0, 5, mode_buf, 0xFF, &data, NULL);
+
+		if (!scsi_status_is_good(res)) {
+			printk(KERN_WARNING "(sd_revalidate_disk:) Flexible disk mode"
+			       " sense failure.\n");
+			goto out;
+		}
+
+		/* store the drive's geometry info we just read */
+		sf_heads = page5->number_of_heads;
+		sf_sectors = page5->sectors_per_track;
+		sf_cylinders = page5->number_of_cylinders_msb << 8
+		               | page5->number_of_cylinders_lsb;
+	}
+
+	/*
 	 * Without media there is no reason to ask; moreover, some devices
 	 * react badly if we do.
 	 */


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Hi


all any update on this issue

just check if any test i can do help to sort of the problem

ram

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<br><br>
<div><span class="gmail_quote">Hi </span></div>
<div><span class="gmail_quote"></span>&nbsp;</div>
<div><span class="gmail_quote"></span>&nbsp;</div>
<div><span class="gmail_quote">all any update on this issue</span></div>
<div><span class="gmail_quote"></span>&nbsp;</div>
<div><span class="gmail_quote">just check if any test i can do help to sort of the problem</span></div>
<div><span class="gmail_quote"></span>&nbsp;</div>
<div><span class="gmail_quote">ram</span></div>

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> > > Don't like what's going on with fr22 in the above code.  Seems like a
> > > GCC optimization bug since it looks like there are a few general registers
> > > that could be used.
> > 
> > Why a bug? It's a register just like any other.
> 
> It's an optimization bug because copying from a general to a floating
> register has to be done through memory.  A stack local would save
> a read and write.  In this case, all the manipulation is done before
> the syscall and there would appear to be sufficient general registers
> available to do the job.  GCC's register allocator should be smart
> enough to figure this out...

With luck, his problem should be fixed:
http://gcc.gnu.org/ml/gcc-patches/2007-03/msg00335.html

Also, the 64-bit kernel should use fp regs only for xmpyu.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] [PATCH] sd: Adds flexible disk (TEAC FC-1,
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Thanks for the comments, Grant.

On 3/8/2007 1:53 AM, Grant Grundler wrote:
> ...
>> @@ -1535,6 +1626,11 @@ static int sd_revalidate_disk(struct gen
>>  	struct scsi_device *sdp = sdkp->device;
>>  	unsigned char *buffer;
>>  	unsigned ordered;
>> +	char mode_buf[0xFF];
>> +	scsi_mode_sense_page5_t* page5 = NULL;
>> +	struct scsi_mode_data data;
>> +	int length = 0;
>> +	int res = 0;
> 
> Could these new local vars be moved into the code block inside
> the "if ()" statement where they are used?

Yes.  Helge emailed me off-list pointing this out too.

>> @@ -1563,6 +1659,66 @@ static int sd_revalidate_disk(struct gen
>>  	sd_spinup_disk(sdkp, disk->disk_name);
>>
>>  	/*
>> +	 * Assuming here that this check will suffice for ID'ing a scsi floppy.
>> +	 * Note that sd_spinup_disk sets media_present above.
>> +	 */
>> +	if (sdp->removable && (sdp->type != TYPE_MOD)
>> +	                   && sdkp->media_present) {
>> +		memset(&data, 0, sizeof(data));
>> +		memset(&mode_buf, 0, sizeof(mode_buf));
> ...
> 
> This code chunk is long enough that it should be it's own subroutine.
> Would that be difficult?

Not at all.  I didn't do too much beautification before I sent this, and I agree
it should be.

> ...
>> +		/* store the drive's geometry info we just read */
>> +		sf_heads = page5->number_of_heads;
>> +		sf_sectors = page5->sectors_per_track;
>> +		sf_cylinders = page5->number_of_cylinders_msb << 8
>> +		               | page5->number_of_cylinders_lsb;
> 
> I'm kinda nervous about the use of static globals to "return" the
> result of the previous code. In case some whacko decided to
> have two scsi floppies with different media types, would this break?

I also agree.  In retrospect, I shouldn't have done this the way I did.  I
mentioned this to Helge earlier, and I've already changed these to static consts
in my source, since I'm basically hard-coding the FC-1's geometry and consts
allow me to sanity check the mode select that sets the geometry.  Does that
sound logical?  Technically, it wouldn't have broken the way it is written
because the geometry should always be the same for these drives, but it wasn't
the best implementation.

I'll wait a bit longer to see if I get any more comments, then I'll post an
updated patch that will include your suggestions.

Regards,
James

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On Thu, Mar 08, 2007 at 10:04:42AM -0500, James K. Love wrote:
> Thanks for the comments, Grant.

welcome :)
kudos for chasing this.

...
> >> +		/* store the drive's geometry info we just read */
> >> +		sf_heads = page5->number_of_heads;
> >> +		sf_sectors = page5->sectors_per_track;
> >> +		sf_cylinders = page5->number_of_cylinders_msb << 8
> >> +		               | page5->number_of_cylinders_lsb;
> > 
> > I'm kinda nervous about the use of static globals to "return" the
> > result of the previous code. In case some whacko decided to
> > have two scsi floppies with different media types, would this break?
> 
> I also agree.  In retrospect, I shouldn't have done this the way I did.  I
> mentioned this to Helge earlier, and I've already changed these to static
> consts in my source, since I'm basically hard-coding the FC-1's geometry
> and consts allow me to sanity check the mode select that sets the geometry.
> Does that sound logical?

It sounds good but it's totally not obvious this was the intent.
If you are "hard coding" the geometry, then can't you just use #define?

I think it's ok to only support one geometry.
Just add a check, something like this:
	if (sf_heads) {
		/* make sure successive floppies have same geometry */
		if (sf_heads != page5->number_of_heads) {
			printk(KERN_ERR "Sorry, only support one geometry"
					" for SCSI floppy.\n");
			return -ENOMEDIA;
		} 
	} else {
		sf_heads =....
	}

And maybe think about a better error message and how to handle it. YKWIM.

>   Technically, it wouldn't have broken the way it is written
> because the geometry should always be the same for these drives,
> but it wasn't the best implementation.

ok. That makes sense. but "these drives" are a specific model of drive
with a specific type of media installed.  I don't see checks for that here.
I expect there are other "device->removable && !TYPE_MOD" devices.

> I'll wait a bit longer to see if I get any more comments, then I'll post an
> updated patch that will include your suggestions.

Sounds good - many thanks!

grant
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On Tue, Feb 27, 2007 at 06:02:10PM -0600, James Bottomley wrote:
> +	/* need to be executing in user context */
> +	if (regs->iasq[0] != 0 || regs->iasq[1] != 0) {

Is there a reason we can't use user_space() from ptrace.h here? You may have
just spotted a subtle bug elsewhere since user_space only checks iasq[1]...
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On Mon, Mar 05, 2007 at 05:17:38PM -0500, James K. Love wrote:
> All:
> 
> I've just merged my flexible disk changes (see thread link below) into the
> latest scsi disk driver source.  These changes add scsi-floppy disk support
> (particularly HP's revs of the TEAC FC-1 drive) to the scsi disk driver.  Per
> Matthew's suggestion, I'm cowardly posting here first to get some feedback,
> rather than posting straight to linux-scsi.

That's fine. In general, very nice work!
I only have some some coding style issues and one question.

> --- ./drivers/scsi/sd.orig	2007-02-25 22:46:56.000000000 -0500
> +++ ./drivers/scsi/sd.c	2007-03-04 21:26:00.000000000 -0500
...
> +#ifdef __BIG_ENDIAN_BITFIELD
> +	unsigned char   true_rdy            : 1;
> +	unsigned char   start_sector_number : 1;
> +	unsigned char   motor_on            : 1;
> +	unsigned char   reserved2           : 5;
> +	unsigned char   reserved3           : 4;
> +	unsigned char   step_pulse_per_cyl  : 4;
> +#else
> +	unsigned char   reserved2           : 5;
> +	unsigned char   motor_on            : 1;
> +	unsigned char   start_sector_number : 1;
> +	unsigned char   true_rdy            : 1;
> +	unsigned char   step_pulse_per_cyl  : 4;
> +	unsigned char   reserved3           : 4;
> +#endif

I prefer bit masks over bit fields for two reasons:
1) don't have the endian mess
2) assignment to bit fields are NOT atomic - they are read/modify/write ops.
   Use of bit fields hides this behavior.

But if you prefer them, I don't think their use is prohibited in general.

...
> @@ -1535,6 +1626,11 @@ static int sd_revalidate_disk(struct gen
>  	struct scsi_device *sdp = sdkp->device;
>  	unsigned char *buffer;
>  	unsigned ordered;
> +	char mode_buf[0xFF];
> +	scsi_mode_sense_page5_t* page5 = NULL;
> +	struct scsi_mode_data data;
> +	int length = 0;
> +	int res = 0;

Could these new local vars be moved into the code block inside
the "if ()" statement where they are used?

Just makes it easier to understand variable usage when reviewing
the code in the future.

>  	SCSI_LOG_HLQUEUE(3, printk("sd_revalidate_disk: disk=%s\n", disk->disk_name));
> 
> @@ -1563,6 +1659,66 @@ static int sd_revalidate_disk(struct gen
>  	sd_spinup_disk(sdkp, disk->disk_name);
> 
>  	/*
> +	 * Assuming here that this check will suffice for ID'ing a scsi floppy.
> +	 * Note that sd_spinup_disk sets media_present above.
> +	 */
> +	if (sdp->removable && (sdp->type != TYPE_MOD)
> +	                   && sdkp->media_present) {
> +		memset(&data, 0, sizeof(data));
> +		memset(&mode_buf, 0, sizeof(mode_buf));
...

This code chunk is long enough that it should be it's own subroutine.
Would that be difficult?

...
> +		/* store the drive's geometry info we just read */
> +		sf_heads = page5->number_of_heads;
> +		sf_sectors = page5->sectors_per_track;
> +		sf_cylinders = page5->number_of_cylinders_msb << 8
> +		               | page5->number_of_cylinders_lsb;

I'm kinda nervous about the use of static globals to "return" the
result of the previous code. In case some whacko decided to
have two scsi floppies with different media types, would this break?

Can't we directly park this info into the per disk data struct?

thanks,
grant
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On 3/8/2007 1:26 PM, Grant Grundler wrote:
> welcome :)
> kudos for chasing this.

No Problem.  I can't think of anything more exciting than finally getting an
obscure, antiquated, low-capacity, franken-drive like the TEAC FC-1 working.
But seriously, I hope someone else finds this patch useful.

> It sounds good but it's totally not obvious this was the intent.
> If you are "hard coding" the geometry, then can't you just use #define?

Yes or consts, whichever is preferable.  The drive geometry is always initially
incorrect, so I must set it to the correct values.  These values should always
be the same for THIS drive... which leads me to...

> I expect there are other "device->removable && !TYPE_MOD" devices.

You would know this better than I, so I'll defer to you.  I was always a bit
uncomfortable making this assumption, which I documented in a comment in the
code.  When the scsi driver attaches to my devices, they are all of TYPE_DISK
and removable.  I was hoping someone else could test this out with a different
scsi-floppy drive, but there may not be any others.  Would it be a better idea
to use model and vendor information to exactly identify the drive as a TEAC FC-1?

Regards,
James Love

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Subject: [parisc-linux] Problem with atomicity of TIF for parisc ?
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While reading LKML I saw the patches by Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> titled
"Fix atomicity of TIF update in flush_thread() for XXX"
e.g. http://permalink.gmane.org/gmane.linux.kernel/502597

Now I'm wondering if our thread-problems may be due the fact that we do not disable interrupts while testing the TIF_XX values in arch/parisc/kernel/entry.S, e.g.:

intr_return:
        /* NOTE: Need to enable interrupts incase we schedule. */
        ssm     PSW_SM_I, %r0
<....>
intr_check_resched:
        /* check for reschedule */
        mfctl   %cr30,%r1
        LDREG   TI_FLAGS(%r1),%r19      /* sched.h: TIF_NEED_RESCHED */
        bb,<,n  %r19,31-TIF_NEED_RESCHED,intr_do_resched /* forward */

Is the coding correct, or do we need to disable interrupts when checking TIF_NEED_RESCHED ?
(There are more TIF_XXX places in entry.S as well which might need checking then...)

Helge
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On Fri, Mar 09, 2007 at 07:06:50PM -0500, John David Anglin wrote:
> 
> Is disabling interrupts sufficient on a SMP system?
> 

No. :/



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> Now I'm wondering if our thread-problems may be due the fact that we do not disable interrupts while testing the TIF_XX values in arch/parisc/kernel/entry.S, e.g.:

Do you have a testcase?  I'm still seeing the occasional thread test
fail in the GCC testsuite fail.  These are usually timeouts.  I'm not
seeing hung processes leading to a kernel crash anymore ;)

I also see output from a test truncated occasionally when a test generates
a lot of output.

> intr_return:
>         /* NOTE: Need to enable interrupts incase we schedule. */
>         ssm     PSW_SM_I, %r0
> <....>
> intr_check_resched:
>         /* check for reschedule */
>         mfctl   %cr30,%r1
>         LDREG   TI_FLAGS(%r1),%r19      /* sched.h: TIF_NEED_RESCHED */
>         bb,<,n  %r19,31-TIF_NEED_RESCHED,intr_do_resched /* forward */
> 
> Is the coding correct, or do we need to disable interrupts when checking TIF_NEED_RESCHED ?

The bb test clearly isn't atomic...

Is disabling interrupts sufficient on a SMP system?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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Hi all,


The dladdr test of the glibc testsuite fail for the following reason :

in elf/dl-addr.c:30, the address passed is transformed this way :
  const ElfW(Addr) addr = DL_LOOKUP_ADDRESS (address);


While in ports/sysdeps/hppa/dl-lookupcfg.h:35, you have this :

/* Clear the bottom two bits so generic code can find the fdesc entry */
#define DL_LOOKUP_ADDRESS(addr) \
  (_dl_lookup_address ((void *)((unsigned long)addr & ~3)))


If you don't apply this bitmask, addr is set to the original value of
the passed address and it is resolved correctly.

What should be the correct fix ?


  Guy


-- 
Guy Martin
Gentoo Linux - HPPA port lead

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> The dladdr test of the glibc testsuite fail for the following reason :
> 
> in elf/dl-addr.c:30, the address passed is transformed this way :
>   const ElfW(Addr) addr = DL_LOOKUP_ADDRESS (address);
> 
> 
> While in ports/sysdeps/hppa/dl-lookupcfg.h:35, you have this :
> 
> /* Clear the bottom two bits so generic code can find the fdesc entry */
> #define DL_LOOKUP_ADDRESS(addr) \
>   (_dl_lookup_address ((void *)((unsigned long)addr & ~3)))
> 
> 
> If you don't apply this bitmask, addr is set to the original value of
> the passed address and it is resolved correctly.
> 
> What should be the correct fix ?

I don't believe you have provided enough info regrading the cause
of the failure.  The PA port uses the bottom two bits for special
purposes.  Magic is used to compare function pointers.

Be very careful with this.  Changing the treatment of the bottom
two bits in function pointers will break calls to/from functions
in any shared library (i.e., any call that uses a fdesc).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hi Dave,

On Saturday 10 March 2007, John David Anglin wrote:
> > Now I'm wondering if our thread-problems may be due the fact that we do not disable interrupts while testing the TIF_XX values in arch/parisc/kernel/entry.S, e.g.:
> 
> Do you have a testcase?  

Randolph pointed me once to the thread_test2.c testprogram in parisc's 'userspace' CVS repository.
Source is attached, but I haven't tested it since a few weeks...

> I'm still seeing the occasional thread test 
> fail in the GCC testsuite fail.  These are usually timeouts.  I'm not
> seeing hung processes leading to a kernel crash anymore ;)

Me neither.

Helge


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/* gcc -Wall -O2 -o thread_test2 thread_test2.c -lpthread */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <pthread.h>
#include <sys/types.h>
#include <sys/wait.h>

pthread_cond_t started, terminated;
pthread_mutex_t started_lock, terminated_lock;
pthread_t thread;

static void *threadfunc(void *data)
{
	int *count = (int *)data;
	pid_t pid;
	int status;

	printf("Thread %d started\n", *count);

	pthread_cond_signal(&started);
	pid = fork();
	switch (pid) {
		case 0: /* Child */
			printf("Process %d started\n", *count);
			sleep(1);
			exit(10);
			break;

		case -1: /* Error */
			perror("fork");
			return NULL;
	}

	printf("Waiting on pid %d\n", pid);
	pid = waitpid(-1, &status, 0);
	if (pid < 0) {
		perror("waitpid");
		return NULL;
	}

	printf("Thread %d terminated (%d)\n", *count, WEXITSTATUS(status));
	pthread_cond_signal(&terminated);

	pthread_exit(NULL);

	return 0;
}

int main(int argc, char **argv)
{
	int count, ret;

	for (count = 1; ; count++) {
		ret = pthread_cond_init(&started, NULL);
		if (ret) {
			perror("pthread_cond_init(started)");
			break;
		}

		ret = pthread_mutex_init(&started_lock, NULL);
		if (ret) {
			perror("pthread_mutex_init(started_lock)");
			break;
		}

		ret = pthread_cond_init(&terminated, NULL);
		if (ret) {
			perror("pthread_cond_init(terminated)");
			break;
		}

		ret = pthread_mutex_init(&terminated_lock, NULL);
		if (ret) {
			perror("pthread_mutex_init(terminated_lock)");
			break;
		}

		ret = pthread_create(&thread, NULL, threadfunc, &count);
		if (ret) {
			perror("pthread_create");
			break;
		}

		pthread_mutex_lock(&started_lock);
		do {
			ret = pthread_cond_wait(&started, &started_lock);
		} while (ret != 0);
		pthread_mutex_unlock(&started_lock);
		
		pthread_mutex_destroy(&started_lock);
		pthread_cond_destroy(&started);

		pthread_mutex_lock(&terminated_lock);
		do {
			ret = pthread_cond_wait(&terminated, &terminated_lock);
		} while (ret != 0);
		pthread_mutex_unlock(&terminated_lock);

		pthread_mutex_destroy(&terminated_lock);
		pthread_cond_destroy(&terminated);
	}

	return 0;
}

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On Saturday 10 March 2007, Kyle McMartin wrote:
> On Fri, Mar 09, 2007 at 07:06:50PM -0500, John David Anglin wrote:
> > 
> > Is disabling interrupts sufficient on a SMP system?
> > 
> 
> No. :/

Hi Kyle,

Independend of the fact if irq-disabling is enough on SMP or not.
The question still remains: May this be one of the reasons we see the hangs ?

Helge
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On Sun, 2007-03-11 at 16:28 -0400, Carlos O'Donell wrote:
> Are we considering James' patch for inclusion into
> git.parisc-linux.org?

No ... it's failing on more complex tests.  The theory is sound ... we
have a huge cockup in our shared space handling code (which is why
threads don't work very well).  The problem is I'm not entirely sure how
to fix it.

James


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Subject: Re: [parisc-linux] Problem with atomicity of TIF for parisc ?
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> Independend of the fact if irq-disabling is enough on SMP or not.
> The question still remains: May this be one of the reasons we see the hangs ?

Looking at a couple of other archs, it appears the reschedule check is done
with interrupts disabled.  For example,

        /* Either reschedule or signal or syscall exit tracking needed. */
	/* First do a reschedule test. */
	/* edx: work, edi: workmask */
int_careful:
	bt $TIF_NEED_RESCHED,%edx
	jnc  int_very_careful
	TRACE_IRQS_ON
	sti
	pushq %rdi
	CFI_ADJUST_CFA_OFFSET 8
	call schedule
	popq %rdi
	CFI_ADJUST_CFA_OFFSET -8
	cli
	TRACE_IRQS_OFF
	jmp int_with_check

However, since interrupts are enabled after the test, I have to think
that the test is just a first cut at determining whether to reschedule.
So, I suspect there isn't an issue with the code in entry.S.

The x86_64 problem concerned the clearing and setting of TIF flags
in an atomic manner.  I don't see a problem with this in arch/parisc/kernel.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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On Saturday 06 January 2007, Helge Deller wrote:
> the trivial patch below is against the current CVS version of LTP and adds
> missing pieces and changes which are necessary for LTP on the PARISC/HPPA
> architecture.

looks like your mailer mangled the whitespace in the patch ...

> The read04.c patch part is a real architecture-independend bugfix. The
> read04 tests writes TST_SIZE bytes to a file, reads the same amount of
> bytes back again and compares the contents. Naturally, it only should
> verify if TST_SIZE bytes (the amount of bytes which where written!)
> matches. sizeof() returns the number of bytes including the leading
> zero-byte which hasn't been read back.

indeed, thanks for that

> Index: testcases/kernel/mem/shmt/shmt02.c
> Index: testcases/kernel/mem/shmt/shmt04.c
> Index: testcases/kernel/mem/shmt/shmt05.c
> Index: testcases/kernel/mem/shmt/shmt06.c
> Index: testcases/kernel/mem/shmt/shmt07.c
> Index: testcases/kernel/mem/shmt/shmt09.c

merged, no comment obviously :)

> Index: testcases/kernel/io/direct_io/diotest4.c

i rewrote this test case so all GNU C based people use=20
__builtin_return_address(0) by default so we shouldnt need the arch cruft=20
anymore ... leave it to gcc to figure that out

> Index: testcases/kernel/include/linux_syscall_numbers.h

this is a generated file, so you dont want to change it ... ive fixed up th=
e=20
input files instead
=2Dmike

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On Sun, 2007-03-11 at 18:13 -0400, Carlos O'Donell wrote:
> Have you posted a more complex test somewhere?

Well, I told you what it is, yes ... it's your fork test with N jacked
up to very high values.

James


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Xref: news.gmane.org gmane.linux.ports.parisc:24445

Hi Mike,

On Tuesday 13 March 2007, Mike Frysinger wrote:
> can i assume your other e-mail included everything needed to resolve this ?

yes, and thanks a lot for applying them !

I've updated to latest CVS version of LTP, and now the PARISC Linux port finally survives all tests beside one:
  getcontext01    1  FAIL  :  getcontext - Sanity test :  Fail errno=251 : Function not implemented
That's correct, since we don't have the getcontext() call in glibc yet....

Thanks again,
Helge

-------------------
Summary:

/etc/issue:
Debian GNU/Linux 4.0 \n \l

Linux c3000 2.6.20 #341 Wed Mar 7 22:23:17 CET 2007 parisc GNU/Linux

Gnu C                  gcc (GCC) 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)
Gnu make               3.81
util-linux             2.12r
mount                  2.12r
modutils               3.3-pre2
e2fsprogs              1.40-WIP
Linux C Library        2.3.6
Dynamic linker (ldd)   2.3.6
Linux C++ Library      5..
Procps                 3.2.7
Net-tools              1.60
Console-tools          0.2.3
Sh-utils               5.97
Modules Loaded

free reports:
             total       used       free     shared    buffers     cached
Mem:       2069792     108588    1961204          0      20292      46744
-/+ buffers/cache:      41552    2028240
Swap:      2216928          0    2216928

/proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8700 (PCX-W2)
cpu MHz         : 750.000000
model           : 9000/785/C3700
model name      : Allegro W2
hversion        : 0x00005dc0
sversion        : 0x00000481
I-cache         : 768 KB
D-cache         : 1536 KB (WB, direct mapped)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
BTLB            : not supported
bogomips        : 1495.04
software id     : 2004631172

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Xref: news.gmane.org gmane.linux.ports.parisc:24446

This patch limits the thread stack size when pages >4 K were selected.
i.e. THREAD_SIZE is calculated to "MAX(16K, PAGE_SIZE)"

diff-tree 6033080df2431638223580559ebea54efb22bc42 (from cd54f53359c3e0deb898a5dbb199b70c5cb6ef0f)
Author: Helge Deller <deller@gmx.de>
Date:   Sat Mar 17 13:19:01 2007 +0100

    [PARISC] limit thread stack size with >4K pages
    
    Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h
index 949314c..ec92d66 100644
--- a/include/asm-parisc/thread_info.h
+++ b/include/asm-parisc/thread_info.h
@@ -34,11 +34,16 @@ struct thread_info {
 
 /* thread information allocation */
 
-#define THREAD_ORDER            2
+#if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
+# define THREAD_ORDER	2
+#elif defined(CONFIG_PARISC_PAGE_SIZE_16KB)
+# define THREAD_ORDER	0
+#elif defined(CONFIG_PARISC_PAGE_SIZE_64KB)
+# define THREAD_ORDER	0
+#endif
 /* Be sure to hunt all references to this down when you change the size of
  * the kernel stack */
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_ORDER)
-#define THREAD_SHIFT            (PAGE_SHIFT + THREAD_ORDER)
 
 #define alloc_thread_info(tsk) ((struct thread_info *) \
 			__get_free_pages(GFP_KERNEL, THREAD_ORDER))
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I just tested the patch "missing system calls" patch by David Woodhouse (http://thread.gmane.org/gmane.linux.ports.ppc64.devel/16991) 
and the additional patch by David Miller (http://thread.gmane.org/gmane.linux.ports.ppc64.devel/16991/focus=502554) on top of it.
I really liked the patches.

Here is the result for my parisc-linux tree:
init/missing_syscalls.h:68:3: warning: #warning syscall umount not implemented
init/missing_syscalls.h:203:3: warning: #warning syscall sigaction not implemented
init/missing_syscalls.h:218:3: warning: #warning syscall sigsuspend not implemented
init/missing_syscalls.h:248:3: warning: #warning syscall select not implemented
init/missing_syscalls.h:269:3: warning: #warning syscall readdir not implemented
init/missing_syscalls.h:308:3: warning: #warning syscall socketcall not implemented
init/missing_syscalls.h:353:3: warning: #warning syscall ipc not implemented
init/missing_syscalls.h:359:3: warning: #warning syscall sigreturn not implemented
init/missing_syscalls.h:749:3: warning: #warning syscall fadvise64 not implemented
init/missing_syscalls.h:800:3: warning: #warning syscall statfs64 not implemented
init/missing_syscalls.h:803:3: warning: #warning syscall fstatfs64 not implemented
init/missing_syscalls.h:809:3: warning: #warning syscall utimes not implemented
init/missing_syscalls.h:845:3: warning: #warning syscall kexec_load not implemented

Comments ?

Helge
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From: James Bottomley <James.Bottomley@SteelEye.com>
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Cc: parisc-linux@lists.parisc-linux.org,
 Kyle McMartin <kyle@mcmartin.ca>
To: Helge Deller <deller@gmx.de>
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On Sat, 2007-03-17 at 13:23 +0100, Helge Deller wrote:
> -#define THREAD_ORDER            2
> +#if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
> +# define THREAD_ORDER  2
> +#elif defined(CONFIG_PARISC_PAGE_SIZE_16KB)
> +# define THREAD_ORDER  0
> +#elif defined(CONFIG_PARISC_PAGE_SIZE_64KB)
> +# define THREAD_ORDER  0
> +#endif

That's a bit ugly ... and would break if someone added new page sizes.
Can't we do something like

#if PAGE_BITS > 16
#define THREAD_ORDER 0
#else
#define THREAD_ORDER (16 - PAGE_BITS)
#endif

?

James



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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [parisc-linux] missing system calls ?
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On Sat, Mar 17, 2007 at 01:48:56PM +0100, Helge Deller wrote:

> init/missing_syscalls.h:203:3: warning: #warning syscall sigaction not implemented
> init/missing_syscalls.h:218:3: warning: #warning syscall sigsuspend not implemented
> init/missing_syscalls.h:359:3: warning: #warning syscall sigreturn not implemented

We don't support non-realtime signals (the syscalls are rt_*)

> init/missing_syscalls.h:68:3: warning: #warning syscall umount not implemented

umount2

> init/missing_syscalls.h:248:3: warning: #warning syscall select not implemented

newselect

> init/missing_syscalls.h:269:3: warning: #warning syscall readdir not implemented

obsolete

> init/missing_syscalls.h:308:3: warning: #warning syscall socketcall not implemented

we don't use the socketcall multiplexer (presumably because we don't need
to put the args on the stack) for socket/bind/connect/ etc...

> init/missing_syscalls.h:353:3: warning: #warning syscall ipc not implemented

same story as socketcall, obsolete multiplexed syscall

> init/missing_syscalls.h:749:3: warning: #warning syscall fadvise64 not implemented

sys_fadvise64_64 versus fadvise64 is a reordering of syscall args, presumably
because loff_t is 64bit and needs to be passed in pairs.

> init/missing_syscalls.h:800:3: warning: #warning syscall statfs64 not implemented
> init/missing_syscalls.h:803:3: warning: #warning syscall fstatfs64 not implemented

Your kernel is too old. 2.6.21-rc3 has this.

> init/missing_syscalls.h:809:3: warning: #warning syscall utimes not implemented

Dunno about this one. sys_utimes seems to just call futimesat anyways.

> init/missing_syscalls.h:845:3: warning: #warning syscall kexec_load not implemented

nobody's implemented kexec yet. :)

Cheers,
	Kyle



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On Sat, Mar 17, 2007 at 08:47:44AM -0500, James Bottomley wrote:
> That's a bit ugly ... and would break if someone added new page sizes.
> Can't we do something like
> 
> #if PAGE_BITS > 16
> #define THREAD_ORDER 0
> #else
> #define THREAD_ORDER (16 - PAGE_BITS)
> #endif
> 

Nice.



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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] missing system calls ?
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On Saturday 17 March 2007, Kyle McMartin wrote:
> On Sat, Mar 17, 2007 at 01:48:56PM +0100, Helge Deller wrote:
> 
> > init/missing_syscalls.h:203:3: warning: #warning syscall sigaction not implemented
> > init/missing_syscalls.h:218:3: warning: #warning syscall sigsuspend not implemented
> > init/missing_syscalls.h:359:3: warning: #warning syscall sigreturn not implemented
> 
> We don't support non-realtime signals (the syscalls are rt_*)
> 
> > init/missing_syscalls.h:68:3: warning: #warning syscall umount not implemented
> 
> umount2
> 
> > init/missing_syscalls.h:248:3: warning: #warning syscall select not implemented
> 
> newselect
> 
> > init/missing_syscalls.h:269:3: warning: #warning syscall readdir not implemented
> 
> obsolete
> 
> > init/missing_syscalls.h:308:3: warning: #warning syscall socketcall not implemented
> 
> we don't use the socketcall multiplexer (presumably because we don't need
> to put the args on the stack) for socket/bind/connect/ etc...
> 
> > init/missing_syscalls.h:353:3: warning: #warning syscall ipc not implemented
> 
> same story as socketcall, obsolete multiplexed syscall
> 
> > init/missing_syscalls.h:749:3: warning: #warning syscall fadvise64 not implemented
> 
> sys_fadvise64_64 versus fadvise64 is a reordering of syscall args, presumably
> because loff_t is 64bit and needs to be passed in pairs.
> 
> > init/missing_syscalls.h:800:3: warning: #warning syscall statfs64 not implemented
> > init/missing_syscalls.h:803:3: warning: #warning syscall fstatfs64 not implemented
> 
> Your kernel is too old. 2.6.21-rc3 has this.
> 
> > init/missing_syscalls.h:809:3: warning: #warning syscall utimes not implemented
> 
> Dunno about this one. sys_utimes seems to just call futimesat anyways.
> 
> > init/missing_syscalls.h:845:3: warning: #warning syscall kexec_load not implemented
> 
> nobody's implemented kexec yet. :)

Thanks Kyle !

So parisc-linux has all important (and currently on PA possible) syscalls wired up.
Nice to know.

Helge
_______________________________________________
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Xref: news.gmane.org gmane.linux.ports.parisc:24452

ROUND_UP macro cleanup, use ALIGN where ever appropriate

Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com>

---
 hpux/fs.c             |    5 ++---
 kernel/sys_parisc32.c |    3 +--
 2 files changed, 3 insertions(+), 5 deletions(-)



diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
index 4204cd1..7ff5546 100644
--- a/arch/parisc/hpux/fs.c
+++ b/arch/parisc/hpux/fs.c
@@ -21,6 +21,7 @@
  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
 #include <linux/file.h>
@@ -70,7 +71,6 @@ struct getdents_callback {
 };
 
 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
-#define ROUND_UP(x) (((x)+sizeof(long)-1) & ~(sizeof(long)-1))
 
 static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
 		u64 ino, unsigned d_type)
@@ -78,7 +78,7 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
 	struct hpux_dirent * dirent;
 	struct getdents_callback * buf = (struct getdents_callback *) __buf;
 	ino_t d_ino;
-	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
+	int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 1,sizeof(long));
 
 	buf->error = -EINVAL;	/* only used if we fail.. */
 	if (reclen > buf->count)
@@ -103,7 +103,6 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
 }
 
 #undef NAME_OFFSET
-#undef ROUND_UP
 
 int hpux_getdents(unsigned int fd, struct hpux_dirent *dirent, unsigned int count)
 {
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index ce3245f..e590880 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -311,14 +311,13 @@ struct readdir32_callback {
 	int count;
 };
 
-#define ROUND_UP(x,a)	((__typeof__(x))(((unsigned long)(x) + ((a) - 1)) & ~((a) - 1)))
 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
 static int filldir32 (void *__buf, const char *name, int namlen,
 			loff_t offset, u64 ino, unsigned int d_type)
 {
 	struct linux32_dirent __user * dirent;
 	struct getdents32_callback * buf = (struct getdents32_callback *) __buf;
-	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1, 4);
+	int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 1, 4);
 	u32 d_ino;
 
 	buf->error = -EINVAL;	/* only used if we fail.. */

-- 
Milind Arun Choudhary
_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: "Paul (NCC/CS)." <pts@bom.gov.au>
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Subject: [parisc-linux] almost booted a K420...
Date: Thu, 12 Apr 2007 13:19:03 +1000
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Hello,

thought i'd have another go at my HP sitting in the corner,
with the new CD debian-40r0-hppa-netinst.iso .

It seemed to boot the kernel but eventually I got:
>>>
Freeing unused kernel memory: 328k freed

FLT  0000Kernel panic - not syncing: Kernel Fault
>>>

It's a HP9000/869 K420 with PA7200 cpu's.

The debian info seems to suggest this should boot
with a serial console.

Can anyone offer me a direction in which to go to
>from here?

the boot output is attached,

thanks,
chs,
Paul.








--

____________________________________________

Paul
Australian Bureau Of Meteorology
____________________________________________




"In a world without walls and fences,
who needs windows and gates ?"

"Computers are like air conditioners.
Both stop working, if you open windows."






--------------FA5F61965C3D21BB5BB20A8B
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 name="hp_boot_output.txt"
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 filename="hp_boot_output.txt"

Main Menu: Enter command or menu > boot 10/12/5.2
Interact with IPL (Y or N)?> n

Booting... 
Boot IO Dependent Code (IODC) revision 0


HARD Booted.
palo ipl 1.14 root@duet Sat Apr  8 16:08:16 EDT 2006

Boot image contains:
    0/vmlinux32 4190085 bytes @ 0xd08800
    0/vmlinux64 5796516 bytes @ 0x781000
    0/ramdisk 4468640 bytes @ 0x335000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=/dev/ram ramdisk_size=12580' console=ttyB0 TERM=vt
102 palo_kernel=0'0/vmlinux'
Selected kernel: '0/vmlinux from partition 0
Selected ramdisk: /ramdisk from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 32-bit ker
nelELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 2392744 mediaptr 0x1000
Segment 1 load 00349000 size 499712 mediaptr 0x24a000
Segment 2 load 00400000 size 381060 mediaptr 0x2c4000
Loading ramdisk 4468640 bytes @ 3fbac000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.18-4-parisc (Debian 2.6.18.dfsg.1-11) (waldi@debian.org) (gcc v
ersion 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 Wed Feb 21 07:41:17 MST 
2007
FP[0] enabled: Rev 1 Model 11
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 000058d0 00000491 00000000 00000002 544120d7 100000f1 00000004 0000008a 000
0008a
vers  0000000d
CPUID vers 11 rev 13 (0x0000016d)
model 9000/869/K420
Total Memory: 1152 MB
initrd: 4fbac000-4ffeefa0
initrd: reserving 3fbac000-3ffeefa0 (mem_max 48000000)
Built 1 zonelists.  Total pages: 294912
Kernel command line: root=/dev/ram ramdisk_size=12580' console=ttyB0 TERM=vt102 p
alo_kernel=0'0/vmlinux
PID hash table entries: 4096 (order: 12, 16384 bytes)
start_kernel(): bug: interrupts were enabled early
Console: colour dummy device 160x64
Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 131072 (order: 7, 524288 bytes)
Memory: 1179648k available
Security Framework v1.0.0 initialized
SELinux:  Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 512
checking if image is initramfs... it is
Freeing initrd memory: 4363k freed
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0x7, 0x580, 0x0000b }
2. KittyHawk GSY Core BA at 0xffd00000 [10/12] { 11, 0x0, 0x015, 0x00081 }, addit
ional addresses: 0xffd0c000 0xffc00000 
3. KittyHawk GSY Core SCSI at 0xffd06000 [10/12/5] { 10, 0x0, 0x015, 0x00082 }
4. KittyHawk GSY Core LAN (802.3) at 0xffd07000 [10/12/6] { 10, 0x0, 0x015, 0x000
8a }
5. KittyHawk GSY Core Centronics at 0xffd02000 [10/12/0] { 10, 0x0, 0x015, 0x0007
4 }, additional addresses: 0xffd01000 0xffd03000 
6. KittyHawk GSY Core PS/2 Port at 0xffd08000 [10/12/7] { 10, 0x0, 0x015, 0x00084
 }
7. KittyHawk GSY Core PS/2 Port at 0xffd08100 [10/12/8] { 10, 0x0, 0x015, 0x00084
 }
8. KittyHawk GSY Core FW-SCSI at 0xf1800000 [10/0] { 4, 0x1, 0x015, 0x00089 }
9. Gecko BOA BC GSC+ Port at 0xf1804000 [10/4] { 7, 0x0, 0x500, 0x0000c }
10. Eole CAP/MUX at 0xf1900000 [10/4/0] { 5, 0x0, 0x015, 0x0000d }
11. Wizard SCSI at 0xf1904000 [10/4/4] { 4, 0x0, 0x004, 0x0003b }
12. Wizard SCSI at 0xf190c000 [10/4/12] { 4, 0x0, 0x004, 0x0003b }
13. Interphase NIO-100BaseTX at 0xf1910000 [10/4/16] { 4, 0x0, 0x004, 0x00382 }
14. Gecko BOA BC HP-PB Port at 0xf193c000 [10/4/60] { 7, 0x0, 0x103, 0x0000c }
15. U2-IOA BC GSC+ Port at 0xf183f000 [10/63] { 7, 0x1, 0x501, 0x0000c }
16. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0x7, 0x580, 0x0000b }
17. U2-IOA BC GSC+ Port at 0xf103f000 [8/63] { 7, 0x1, 0x501, 0x0000c }
18. ThunderHawk DC3 120 1M (K420) at 0xfffa0000 [32] { 0, 0x0, 0x58d, 0x00004 }
19. ThunderHawk DC3 120 1M (K420) at 0xfffa2000 [34] { 0, 0x0, 0x58d, 0x00004 }
20. ThunderHawk DC3 120 1M (K420) at 0xfffa4000 [36] { 0, 0x0, 0x58d, 0x00004 }
21. ThunderHawk DC3 120 1M (K420) at 0xfffa6000 [38] { 0, 0x0, 0x58d, 0x00004 }
22. Memory at 0xfffb1000 [49] { 1, 0x0, 0x032, 0x00009 }
Enabling regular chassis codes support v0.05
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 34 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 36 failed with error 1
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 38 failed with error 1
CPU(s): 1 x PA7200 (PCX-T') at 120.000000 MHz
Setting cache flush threshold to 4a0 (1 CPUs online)
Found U2 at 0xfff8a000
Found U2 at 0xfff88000
Lasi version 0 at 0xffd00000 found.
LED display at ffd0c000 registered
Found GeckoBoa at 0xf1804000
NET: Registered protocol family 2
IP route cache hash table entries: 65536 (order: 6, 262144 bytes)
TCP established hash table entries: 262144 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 6, 262144 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
Enabling PDC chassis warnings support v0.05
unwind_init: start = 0x1034acc0, end = 0x1036f7b0, entries = 9391
audit: initializing netlink socket (disabled)
audit(1062307039.536:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
PDC Stable Storage facility v0.30
Soft power switch support not available.
STI GSC/PCI core graphics driver Version 0.9a
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
Serial mux driver (8 ports) Revision: 0.3
ttyB0 at MMIO 0xf1900800 (polled) is a Mux
ttyB1 at MMIO 0xf1900880 (polled) is a Mux
ttyB2 at MMIO 0xf1900900 (polled) is a Mux
ttyB3 at MMIO 0xf1900980 (polled) is a Mux
ttyB4 at MMIO 0xf1900a00 (polled) is a Mux
ttyB5 at MMIO 0xf1900a80 (polled) is a Mux
ttyB6 at MMIO 0xf1900b00 (polled) is a Mux
ttyB7 at MMIO 0xf1900b80 (polled) is a Mux
RAMDISK driver initialized: 16 RAM disks of 12580K size 1024 blocksize
serio: GSC PS/2 keyboard port at 0x00028000 irq 19 @ 10:12:7
serio: GSC PS/2 mouse port at 0x0002a100 irq 19 @ 10:12:8
mice: PS/2 mouse device common for all mice
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
Freeing unused kernel memory: 328k freed

FLT  0000Kernel panic - not syncing: Kernel Fault

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_______________________________________________
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parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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On 4/12/07, Paul (NCC/CS). <pts@bom.gov.au> wrote:
>
>
> thought i'd have another go at my HP sitting in the corner,
> with the new CD debian-40r0-hppa-netinst.iso .
>
> It seemed to boot the kernel but eventually I got:
> >>>
> Freeing unused kernel memory: 328k freed
>
> FLT  0000Kernel panic - not syncing: Kernel Fault
> >>>
>
> It's a HP9000/869 K420 with PA7200 cpu's.
>
> The debian info seems to suggest this should boot
> with a serial console.
>
> Can anyone offer me a direction in which to go to
> from here?
>

Hi Paul,

I'm using a K370 with great success. I'm not sure whether
the Debian install CD will work on a multi-CPU box.  You can
try unplugging all but the first CPU and see if that makes a
difference.  Also, you may have to add "console=ttyB0" or
somesuch to PALO's boot line -- the K classes (and perhaps
a few other boxes) have very different serial hardware.  Oh
wait, I see you have it already.

Sorry this  is a bit vague; I run Gentoo and it was very simple
to boot the install CD.  So if you hit a dead-end, you might
give it a try.

Good luck,
Andrew

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On 4/12/07, <b class="gmail_sendername">Paul (NCC/CS).</b> &lt;<a href="mailto:pts@bom.gov.au">pts@bom.gov.au</a>&gt; wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>thought i&#39;d have another go at my HP sitting in the corner,<br>with the new CD debian-40r0-hppa-netinst.iso .<br><br>It seemed to boot the kernel but eventually I got:<br>&gt;&gt;&gt;<br>Freeing unused kernel memory: 328k freed
<br><br>FLT&nbsp;&nbsp;0000Kernel panic - not syncing: Kernel Fault<br>&gt;&gt;&gt;<br><br>It&#39;s a HP9000/869 K420 with PA7200 cpu&#39;s.<br><br>The debian info seems to suggest this should boot<br>with a serial console.<br><br>
Can anyone offer me a direction in which to go to<br>from here?<br></blockquote></div><br>Hi Paul,<br><br>I&#39;m using a K370 with great success. I&#39;m not sure whether<br>the Debian install CD will work on a multi-CPU box.&nbsp; You can
<br>try unplugging all but the first CPU and see if that makes a<br>difference.&nbsp; Also, you may have to add &quot;console=ttyB0&quot; or<br>somesuch to PALO&#39;s boot line -- the K classes (and perhaps<br>a few other boxes) have very different serial hardware.&nbsp; Oh
<br>wait, I see you have it already.<br><br>Sorry this&nbsp; is a bit vague; I run Gentoo and it was very simple<br>to boot the install CD.&nbsp; So if you hit a dead-end, you might<br>give it a try.<br><br>Good luck,<br>Andrew

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> Hi Paul,
>
> I'm using a K370 with great success. I'm not sure whether
> the Debian install CD will work on a multi-CPU box.  You can
> try unplugging all but the first CPU and see if that makes a
> difference.  Also, you may have to add "console=ttyB0" or
> somesuch to PALO's boot line -- the K classes (and perhaps
> a few other boxes) have very different serial hardware.  Oh
> wait, I see you have it already.
>
> Sorry this  is a bit vague; I run Gentoo and it was very simple
> to boot the install CD.  So if you hit a dead-end, you might
> give it a try.


Hi

some time back i posted the problem, but  some one responded, but i did not
solve the problem

after i saw the new version released, i want to try, but i see the same
problem

 Kernel Panic- not syncing:drivers/parisc/ccio-dma.c: ccio_alloc_range() I/O
MMU is out of mapping resources

iam using  webconsole and installing

any suggestion make my system working with Debian 4.X

HP R Class 9000, 1GB RAM, Built in CD ROM

thanks
ram

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<br>
<div>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Hi Paul,<br><br>I&#39;m using a K370 with great success. I&#39;m not sure whether<br>the Debian install CD will work on a multi-CPU box.&nbsp; You can 
<br>try unplugging all but the first CPU and see if that makes a<br>difference.&nbsp; Also, you may have to add &quot;console=ttyB0&quot; or<br>somesuch to PALO&#39;s boot line -- the K classes (and perhaps<br>a few other boxes) have very different serial hardware.&nbsp; Oh 
<br>wait, I see you have it already.<br><br>Sorry this&nbsp; is a bit vague; I run Gentoo and it was very simple<br>to boot the install CD.&nbsp; So if you hit a dead-end, you might<br>give it a try.</blockquote>
<div>&nbsp;</div>
<div>Hi</div>
<div>&nbsp;</div>
<div>some time back i posted the problem, but&nbsp; some one responded, but i did not solve the problem</div>
<div>&nbsp;</div>
<div>after i saw the new version released, i want to try, but i see the same problem</div>
<div>&nbsp;</div>
<div>
<div>Kernel Panic- not syncing:drivers/parisc/ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping resources</div>&nbsp;</div>
<div>iam using&nbsp; webconsole and installing</div>
<div>&nbsp;</div>
<div>any suggestion make my system working with Debian 4.X</div>
<div>&nbsp;</div>
<div>HP R Class 9000, 1GB RAM, Built in CD ROM</div>
<div>&nbsp;</div>
<div>thanks</div>
<div>ram&nbsp;</div></div>

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On Sat, Mar 31, 2007 at 04:27:46PM +0530, Milind Arun Choudhary wrote:
> Clean up ROUND_?UP, Use ALIGN where ever appropriate.
> 
> Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com>

Milind,
Looks good to me.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Kyle,
can you remind me how these patches should be pushed into your tree?
Or do you want to directly apply them yourself?

I have the impression git.parisc-linux.org tree is stale and I should
be using something different. I just don't know what.

thanks,
grant

> 
> ---
>  ccio-dma.c      |    8 ++++----
>  iommu-helpers.h |    4 ++--
>  sba_iommu.c     |    6 ++----
>  3 files changed, 8 insertions(+), 10 deletions(-)
> 
> 
> 
> diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
> index 894fdb9..1459ca8 100644
> --- a/drivers/parisc/ccio-dma.c
> +++ b/drivers/parisc/ccio-dma.c
> @@ -32,6 +32,7 @@
>  */
>  
>  #include <linux/types.h>
> +#include <linux/kernel.h>
>  #include <linux/init.h>
>  #include <linux/mm.h>
>  #include <linux/spinlock.h>
> @@ -292,7 +293,6 @@ static int ioc_count;
>  #define PDIR_INDEX(iovp)    ((iovp)>>IOVP_SHIFT)
>  #define MKIOVP(pdir_idx)    ((long)(pdir_idx) << IOVP_SHIFT)
>  #define MKIOVA(iovp,offset) (dma_addr_t)((long)iovp | (long)offset)
> -#define ROUNDUP(x,y) ((x + ((y)-1)) & ~((y)-1))
>  
>  /*
>  ** Don't worry about the 150% average search length on a miss.
> @@ -668,7 +668,7 @@ ccio_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
>  	size_t saved_byte_cnt;
>  
>  	/* round up to nearest page size */
> -	saved_byte_cnt = byte_cnt = ROUNDUP(byte_cnt, IOVP_SIZE);
> +	saved_byte_cnt = byte_cnt = ALIGN(byte_cnt, IOVP_SIZE);
>  
>  	while(byte_cnt > 0) {
>  		/* invalidate one page at a time */
> @@ -751,7 +751,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
>  	offset = ((unsigned long) addr) & ~IOVP_MASK;
>  
>  	/* round up to nearest IOVP_SIZE */
> -	size = ROUNDUP(size + offset, IOVP_SIZE);
> +	size = ALIGN(size + offset, IOVP_SIZE);
>  	spin_lock_irqsave(&ioc->res_lock, flags);
>  
>  #ifdef CCIO_MAP_STATS
> @@ -814,7 +814,7 @@ ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
>  
>  	iova ^= offset;        /* clear offset bits */
>  	size += offset;
> -	size = ROUNDUP(size, IOVP_SIZE);
> +	size = ALIGN(size, IOVP_SIZE);
>  
>  	spin_lock_irqsave(&ioc->res_lock, flags);
>  
> diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h
> index 38d9e1a..0a1f99a 100644
> --- a/drivers/parisc/iommu-helpers.h
> +++ b/drivers/parisc/iommu-helpers.h
> @@ -138,7 +138,7 @@ iommu_coalesce_chunks(struct ioc *ioc, struct scatterlist *startsg, int nents,
>  			** exceed DMA_CHUNK_SIZE if we coalesce the
>  			** next entry.
>  			*/   
> -			if(unlikely(ROUNDUP(dma_len + dma_offset + startsg->length,
> +			if(unlikely(ALIGN(dma_len + dma_offset + startsg->length,
>  					    IOVP_SIZE) > DMA_CHUNK_SIZE))
>  				break;
>  
> @@ -158,7 +158,7 @@ iommu_coalesce_chunks(struct ioc *ioc, struct scatterlist *startsg, int nents,
>  		** Allocate space for DMA stream.
>  		*/
>  		sg_dma_len(contig_sg) = dma_len;
> -		dma_len = ROUNDUP(dma_len + dma_offset, IOVP_SIZE);
> +		dma_len = ALIGN(dma_len + dma_offset, IOVP_SIZE);
>  		sg_dma_address(contig_sg) =
>  			PIDE_FLAG 
>  			| (iommu_alloc_range(ioc, dma_len) << IOVP_SHIFT)
> diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
> index 76a29da..7d83d9f 100644
> --- a/drivers/parisc/sba_iommu.c
> +++ b/drivers/parisc/sba_iommu.c
> @@ -113,8 +113,6 @@ module_param(sba_reserve_agpgart, int, 1);
>  MODULE_PARM_DESC(sba_reserve_agpgart, "Reserve half of IO pdir as AGPGART");
>  #endif
>  
> -#define ROUNDUP(x,y) ((x + ((y)-1)) & ~((y)-1))
> -
>  
>  /************************************
>  ** SBA register read and write support
> @@ -352,7 +350,7 @@ sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted)
>  		** SBA HW features in the unmap path.
>  		*/
>  		unsigned long o = 1 << get_order(bits_wanted << PAGE_SHIFT);
> -		uint bitshiftcnt = ROUNDUP(ioc->res_bitshift, o);
> +		uint bitshiftcnt = ALIGN(ioc->res_bitshift, o);
>  		unsigned long mask;
>  
>  		if (bitshiftcnt >= BITS_PER_LONG) {
> @@ -779,7 +777,7 @@ sba_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
>  	offset = iova & ~IOVP_MASK;
>  	iova ^= offset;        /* clear offset bits */
>  	size += offset;
> -	size = ROUNDUP(size, IOVP_SIZE);
> +	size = ALIGN(size, IOVP_SIZE);
>  
>  	spin_lock_irqsave(&ioc->res_lock, flags);
>  
> 
> -- 
> Milind Arun Choudhary
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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Subject: [parisc-linux] Re: [KJ][PATCH] ROUND_UP macro cleanup in arch/parisc
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Cc: willy@debian.org,
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To: Milind Arun Choudhary <milindchoudhary@gmail.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:24457

On Sun, Apr 01, 2007 at 01:06:46PM +0530, Milind Arun Choudhary wrote:
> ROUND_UP macro cleanup, use ALIGN where ever appropriate
> 
> Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com>

Also looks good to me. Just one white space nit we can fixup by hand.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>


> 
> ---
>  hpux/fs.c             |    5 ++---
>  kernel/sys_parisc32.c |    3 +--
>  2 files changed, 3 insertions(+), 5 deletions(-)
> 
> 
> 
> diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
> index 4204cd1..7ff5546 100644
> --- a/arch/parisc/hpux/fs.c
> +++ b/arch/parisc/hpux/fs.c
> @@ -21,6 +21,7 @@
>   *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
>   */
>  
> +#include <linux/kernel.h>
>  #include <linux/mm.h>
>  #include <linux/sched.h>
>  #include <linux/file.h>
> @@ -70,7 +71,6 @@ struct getdents_callback {
>  };
>  
>  #define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
> -#define ROUND_UP(x) (((x)+sizeof(long)-1) & ~(sizeof(long)-1))
>  
>  static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
>  		u64 ino, unsigned d_type)
> @@ -78,7 +78,7 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
>  	struct hpux_dirent * dirent;
>  	struct getdents_callback * buf = (struct getdents_callback *) __buf;
>  	ino_t d_ino;
> -	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
> +	int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 1,sizeof(long));

Nit: I'd want a blank space after the comma.

thanks,
grant

>  
>  	buf->error = -EINVAL;	/* only used if we fail.. */
>  	if (reclen > buf->count)
> @@ -103,7 +103,6 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
>  }
>  
>  #undef NAME_OFFSET
> -#undef ROUND_UP
>  
>  int hpux_getdents(unsigned int fd, struct hpux_dirent *dirent, unsigned int count)
>  {
> diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
> index ce3245f..e590880 100644
> --- a/arch/parisc/kernel/sys_parisc32.c
> +++ b/arch/parisc/kernel/sys_parisc32.c
> @@ -311,14 +311,13 @@ struct readdir32_callback {
>  	int count;
>  };
>  
> -#define ROUND_UP(x,a)	((__typeof__(x))(((unsigned long)(x) + ((a) - 1)) & ~((a) - 1)))
>  #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
>  static int filldir32 (void *__buf, const char *name, int namlen,
>  			loff_t offset, u64 ino, unsigned int d_type)
>  {
>  	struct linux32_dirent __user * dirent;
>  	struct getdents32_callback * buf = (struct getdents32_callback *) __buf;
> -	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1, 4);
> +	int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 1, 4);
>  	u32 d_ino;
>  
>  	buf->error = -EINVAL;	/* only used if we fail.. */
> 
> -- 
> Milind Arun Choudhary
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Xref: news.gmane.org gmane.linux.ports.parisc:24458

I have a D250/350 with a j3516a with the DEC 21140 chipset.  When I try 
to install Debian 3.1 it freezes with a trap error on the display.  It 
boots fine but when it tries to load the tulip driver it freezes and the 
display on the front shows FLT CBC0 TRAPS CPU01.  I have 3 of these 
boards and they all do the same thing.  Is there some trick to getting 
this board to work?  Has any one else had this issue?  Thanks for any 
assistance you might be able to provide.


Alan
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Xref: news.gmane.org gmane.linux.ports.parisc:24459

) can you remind me how these patches should be pushed into your tree?
> Or do you want to directly apply them yourself?
> 
> I have the impression git.parisc-linux.org tree is stale and I should
> be using something different. I just don't know what.

I'd thought that patches once approved would somehow get pushed upstream.

Where parisc needs to maintain its own changes, I would be happy
to just be able to download a diff against the upstream tree.  I believe
that Kyle posted a patch set sometime back.  Ideally the upstream tree
would be usable without patches.

It would be nice if the process could be documented on the web site.

PS: There is a problem with web access to the parisc-linux archive.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] FW diag is broken?
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Xref: news.gmane.org gmane.linux.ports.parisc:24460

Hi,
gsyprf11.external.hp.com is having problems and the latest manifestation
is this very odd output from the console when trying to netboot the
PF_CHAW4350.frm in order to update firmware:

Main Menu: Enter command or menu > bo lan
Interact with IPL (Y, N, or Cancel)?> n

Booting... 
Network Station Address 00306e-2661a3
System IP Address 192.6.38.61
Server IP Address 192.6.38.60

Boot IO Dependent Code (IODC) revision 2

IPL error: bad LIF magic.

************* SYSTEM ALERT **************
SYSTEM NAME: rp2470c
DATE: 04/02/2007 TIME: 04:21:21
ALERT LEVEL: 6 = Boot possible, pending failure - action required

REASON FOR ALERT
SOURCE: 8 = I/O 
SOURCE DETAIL: 6 = disk   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         ON        ON         ON
LED State: Boot Failed.  Running non-OS code.  Non-critical error detected.
Check Chassis and Console Logs for error messages.

0x00000060860010B0 00000000 00000000 - type  0 = Data Field Unused
0x58000860860010B0 00006B03 02041515 - type 11 = Timestamp 04/02/2007 04:21:21
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:Timeout!
*****************************************

************* SYSTEM ALERT **************
SYSTEM NAME: rp2470c
DATE: 04/02/2007 TIME: 04:21:22
ALERT LEVEL: 6 = Boot possible, pending failure - action required

REASON FOR ALERT
SOURCE: 8 = I/O 
SOURCE DETAIL: 6 = disk   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         ON        ON         ON
LED State: Boot Failed.  Running non-OS code.  Non-critical error detected.
Check Chassis and Console Logs for error messages.

0x00000060860014F0 00000000 00000000 - type  0 = Data Field Unused
0x58000860860014F0 00006B03 02041516 - type 11 = Timestamp 04/02/2007 04:21:22
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:X
*****************************************

CAUTION: System Alerts have been disabled. This will re-enable with 
a re-boot or power-on of the system. To re-enable system alerts now, you
may use the AC (Alert Display Configuration) command.

************* SYSTEM ALERT **************
Alert messages are now disabled. Enter Commands Interface AC command 
to enable them again
*****************************************


------------------------------- cut here --------------------------

The firmware update image should be fine...both copies I have are the same.
I get the same error when trying to boot from disk - and I'm obviously
trying to boot from LAN above, not disk.

So I have to wonder if this is really a RAM HW failure that the powerup
selftests are not catching. Or maybe some other HW failure? Can anyone
make sense of the "SOURCE DETAIL: 6 = disk" when booting from network?


thanks,
grant
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From: Milind Arun Choudhary <milindchoudhary@gmail.com>
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Subject: [parisc-linux] [KJ][PATCH] ROUND_?UP macro cleanup in drivers/parisc
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Xref: news.gmane.org gmane.linux.ports.parisc:24461

Clean up ROUND_?UP, Use ALIGN where ever appropriate.

Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com>

---
 ccio-dma.c      |    8 ++++----
 iommu-helpers.h |    4 ++--
 sba_iommu.c     |    6 ++----
 3 files changed, 8 insertions(+), 10 deletions(-)



diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 894fdb9..1459ca8 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -32,6 +32,7 @@
 */
 
 #include <linux/types.h>
+#include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/spinlock.h>
@@ -292,7 +293,6 @@ static int ioc_count;
 #define PDIR_INDEX(iovp)    ((iovp)>>IOVP_SHIFT)
 #define MKIOVP(pdir_idx)    ((long)(pdir_idx) << IOVP_SHIFT)
 #define MKIOVA(iovp,offset) (dma_addr_t)((long)iovp | (long)offset)
-#define ROUNDUP(x,y) ((x + ((y)-1)) & ~((y)-1))
 
 /*
 ** Don't worry about the 150% average search length on a miss.
@@ -668,7 +668,7 @@ ccio_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
 	size_t saved_byte_cnt;
 
 	/* round up to nearest page size */
-	saved_byte_cnt = byte_cnt = ROUNDUP(byte_cnt, IOVP_SIZE);
+	saved_byte_cnt = byte_cnt = ALIGN(byte_cnt, IOVP_SIZE);
 
 	while(byte_cnt > 0) {
 		/* invalidate one page at a time */
@@ -751,7 +751,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
 	offset = ((unsigned long) addr) & ~IOVP_MASK;
 
 	/* round up to nearest IOVP_SIZE */
-	size = ROUNDUP(size + offset, IOVP_SIZE);
+	size = ALIGN(size + offset, IOVP_SIZE);
 	spin_lock_irqsave(&ioc->res_lock, flags);
 
 #ifdef CCIO_MAP_STATS
@@ -814,7 +814,7 @@ ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
 
 	iova ^= offset;        /* clear offset bits */
 	size += offset;
-	size = ROUNDUP(size, IOVP_SIZE);
+	size = ALIGN(size, IOVP_SIZE);
 
 	spin_lock_irqsave(&ioc->res_lock, flags);
 
diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h
index 38d9e1a..0a1f99a 100644
--- a/drivers/parisc/iommu-helpers.h
+++ b/drivers/parisc/iommu-helpers.h
@@ -138,7 +138,7 @@ iommu_coalesce_chunks(struct ioc *ioc, struct scatterlist *startsg, int nents,
 			** exceed DMA_CHUNK_SIZE if we coalesce the
 			** next entry.
 			*/   
-			if(unlikely(ROUNDUP(dma_len + dma_offset + startsg->length,
+			if(unlikely(ALIGN(dma_len + dma_offset + startsg->length,
 					    IOVP_SIZE) > DMA_CHUNK_SIZE))
 				break;
 
@@ -158,7 +158,7 @@ iommu_coalesce_chunks(struct ioc *ioc, struct scatterlist *startsg, int nents,
 		** Allocate space for DMA stream.
 		*/
 		sg_dma_len(contig_sg) = dma_len;
-		dma_len = ROUNDUP(dma_len + dma_offset, IOVP_SIZE);
+		dma_len = ALIGN(dma_len + dma_offset, IOVP_SIZE);
 		sg_dma_address(contig_sg) =
 			PIDE_FLAG 
 			| (iommu_alloc_range(ioc, dma_len) << IOVP_SHIFT)
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 76a29da..7d83d9f 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -113,8 +113,6 @@ module_param(sba_reserve_agpgart, int, 1);
 MODULE_PARM_DESC(sba_reserve_agpgart, "Reserve half of IO pdir as AGPGART");
 #endif
 
-#define ROUNDUP(x,y) ((x + ((y)-1)) & ~((y)-1))
-
 
 /************************************
 ** SBA register read and write support
@@ -352,7 +350,7 @@ sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted)
 		** SBA HW features in the unmap path.
 		*/
 		unsigned long o = 1 << get_order(bits_wanted << PAGE_SHIFT);
-		uint bitshiftcnt = ROUNDUP(ioc->res_bitshift, o);
+		uint bitshiftcnt = ALIGN(ioc->res_bitshift, o);
 		unsigned long mask;
 
 		if (bitshiftcnt >= BITS_PER_LONG) {
@@ -779,7 +777,7 @@ sba_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
 	offset = iova & ~IOVP_MASK;
 	iova ^= offset;        /* clear offset bits */
 	size += offset;
-	size = ROUNDUP(size, IOVP_SIZE);
+	size = ALIGN(size, IOVP_SIZE);
 
 	spin_lock_irqsave(&ioc->res_lock, flags);
 

-- 
Milind Arun Choudhary
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Xref: news.gmane.org gmane.linux.ports.parisc:24462



Hi Guys,

I just read your replies.

But before this I did try GENTOO.

wallah! :))))))))))))

works out of the box. ( cd).

i haven't done the full install yet but i'm very pleased
that it boots a kernel.

PS i even tried gentoo on an IBM/RS6000 that i've never
been able to get debian to boot on also. and it worked too!!!:))).
double christmas:).

so gentoo gets my thumbs up at the present.

it's disappointing that debian never comes up with the stuff
on these machines. But never mind.

thanks,
Paul.









ram wrote:

>
>
>      Hi Paul,
>
>      I'm using a K370 with great success. I'm not sure whether
>      the Debian install CD will work on a multi-CPU box.  You can
>      try unplugging all but the first CPU and see if that makes a
>      difference.  Also, you may have to add "console=ttyB0" or
>      somesuch to PALO's boot line -- the K classes (and perhaps
>      a few other boxes) have very different serial hardware.  Oh
>      wait, I see you have it already.
>
>      Sorry this  is a bit vague; I run Gentoo and it was very simple
>      to boot the install CD.  So if you hit a dead-end, you might
>      give it a try.
>
>  Hi some time back i posted the problem, but  some one responded, but i did not solve the problem
> after i saw the new version released, i want to try, but i see the same problem Kernel Panic- not
> syncing:drivers/parisc/ccio-dma.c: ccio_alloc_range() I/O MMU is out of mapping resourcesiam
> using  webconsole and installing any suggestion make my system working with Debian 4.X HP R Class
> 9000, 1GB RAM, Built in CD ROM thanksram

--

____________________________________________

Paul
Australian Bureau Of Meteorology
____________________________________________




"In a world without walls and fences,
who needs windows and gates ?"






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Xref: news.gmane.org gmane.linux.ports.parisc:24463

Hi,

as I needed a 82596 driver for a machine (SNI RM400), I took
lasi_82596.c, cloned it and made it working on that machine. But
I don't think it's a good idea to have another clone of 82596.c in
linux, therefore I splitted my cloned driver and took the lasi parts
to get one major file (lib82596.c) and two hardware specific parts
(lasi_82596.c and sni_82596.c), which just holds the hardware things
of the driver. This "new" driver works now on the RM400, so it's
time to test it on parisc hardware. Unfortunatly my machines with
lasi82596 are stored away, so I'm looking for someone, who is
willing to try the patch below and give me feedback.

Are there any other things, which should be improved in the driver,
before I'm going to submit this driver ?

Thomas.

diff --git a/drivers/net/lasi_82596.c b/drivers/net/lasi_82596.c
index 452863d..95af766 100644
--- a/drivers/net/lasi_82596.c
+++ b/drivers/net/lasi_82596.c
@@ -94,31 +94,6 @@
 
 #define LASI_82596_DRIVER_VERSION "LASI 82596 driver - Revision: 1.30"
 
-/* DEBUG flags
- */
-
-#define DEB_INIT	0x0001
-#define DEB_PROBE	0x0002
-#define DEB_SERIOUS	0x0004
-#define DEB_ERRORS	0x0008
-#define DEB_MULTI	0x0010
-#define DEB_TDR		0x0020
-#define DEB_OPEN	0x0040
-#define DEB_RESET	0x0080
-#define DEB_ADDCMD	0x0100
-#define DEB_STATUS	0x0200
-#define DEB_STARTTX	0x0400
-#define DEB_RXADDR	0x0800
-#define DEB_TXADDR	0x1000
-#define DEB_RXFRAME	0x2000
-#define DEB_INTS	0x4000
-#define DEB_STRUCT	0x8000
-#define DEB_ANY		0xffff
-
-
-#define DEB(x,y)	if (i596_debug & (x)) { y; }
-
-
 #define  CHECK_WBACK(priv, addr,len) \
 	do { dma_cache_sync((priv)->dev, (void *)addr, len, DMA_TO_DEVICE); } while (0)
 
@@ -133,46 +108,18 @@
 #define PA_CPU_PORT_L_ACCESS	4
 #define PA_CHANNEL_ATTENTION	8
 
+#define OPT_SWAP_PORT	0x0001	/* Need to wordswp on the MPU port */
 
-/*
- * Define various macros for Channel Attention, word swapping etc., dependent
- * on architecture.  MVME and BVME are 680x0 based, otherwise it is Intel.
- */
+#define SYSBUS      0x0000006c;
 
-#ifdef __BIG_ENDIAN
-#define WSWAPrfd(x)  (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define WSWAPrbd(x)  (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define WSWAPiscp(x) (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define WSWAPscb(x)  (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define WSWAPcmd(x)  (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define WSWAPtbd(x)  (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define WSWAPchar(x) (((u32)(x)<<16) | ((((u32)(x)))>>16))
-#define ISCP_BUSY	0x00010000
-#define MACH_IS_APRICOT	0
-#else
-#define WSWAPrfd(x)     ((struct i596_rfd *)(x))
-#define WSWAPrbd(x)     ((struct i596_rbd *)(x))
-#define WSWAPiscp(x)    ((struct i596_iscp *)(x))
-#define WSWAPscb(x)     ((struct i596_scb *)(x))
-#define WSWAPcmd(x)     ((struct i596_cmd *)(x))
-#define WSWAPtbd(x)     ((struct i596_tbd *)(x))
-#define WSWAPchar(x)    ((char *)(x))
-#define ISCP_BUSY	0x0001
-#define MACH_IS_APRICOT	1
-#endif
+/* big endian CPU, 82596 "big" endian mode */
+#define SWAP32(x)   (((u32)(x)<<16) | ((((u32)(x)))>>16))
+#define SWAP16(x)   (x)
 
-/*
- * The MPU_PORT command allows direct access to the 82596. With PORT access
- * the following commands are available (p5-18). The 32-bit port command
- * must be word-swapped with the most significant word written first.
- * This only applies to VME boards.
- */
-#define PORT_RESET		0x00	/* reset 82596 */
-#define PORT_SELFTEST		0x01	/* selftest */
-#define PORT_ALTSCP		0x02	/* alternate SCB address */
-#define PORT_ALTDUMP		0x03	/* Alternate DUMP address */
+static inline void CA(struct net_device *dev);
+static inline void MPU_PORT(struct net_device *dev, int c, dma_addr_t x);
 
-static int i596_debug = (DEB_SERIOUS|DEB_PROBE);
+#include "lib82596.c"
 
 MODULE_AUTHOR("Richard Hirst");
 MODULE_DESCRIPTION("i82596 driver");
@@ -180,246 +127,6 @@ MODULE_LICENSE("GPL");
 module_param(i596_debug, int, 0);
 MODULE_PARM_DESC(i596_debug, "lasi_82596 debug mask");
 
-/* Copy frames shorter than rx_copybreak, otherwise pass on up in
- * a full sized sk_buff.  Value of 100 stolen from tulip.c (!alpha).
- */
-static int rx_copybreak = 100;
-
-#define MAX_DRIVERS	4	/* max count of drivers */
-
-#define PKT_BUF_SZ	1536
-#define MAX_MC_CNT	64
-
-#define I596_NULL ((u32)0xffffffff)
-
-#define CMD_EOL		0x8000	/* The last command of the list, stop. */
-#define CMD_SUSP	0x4000	/* Suspend after doing cmd. */
-#define CMD_INTR	0x2000	/* Interrupt after doing cmd. */
-
-#define CMD_FLEX	0x0008	/* Enable flexible memory model */
-
-enum commands {
-	CmdNOp = 0, CmdSASetup = 1, CmdConfigure = 2, CmdMulticastList = 3,
-	CmdTx = 4, CmdTDR = 5, CmdDump = 6, CmdDiagnose = 7
-};
-
-#define STAT_C		0x8000	/* Set to 0 after execution */
-#define STAT_B		0x4000	/* Command being executed */
-#define STAT_OK		0x2000	/* Command executed ok */
-#define STAT_A		0x1000	/* Command aborted */
-
-#define	 CUC_START	0x0100
-#define	 CUC_RESUME	0x0200
-#define	 CUC_SUSPEND    0x0300
-#define	 CUC_ABORT	0x0400
-#define	 RX_START	0x0010
-#define	 RX_RESUME	0x0020
-#define	 RX_SUSPEND	0x0030
-#define	 RX_ABORT	0x0040
-
-#define TX_TIMEOUT	5
-
-#define OPT_SWAP_PORT	0x0001	/* Need to wordswp on the MPU port */
-
-
-struct i596_reg {
-	unsigned short porthi;
-	unsigned short portlo;
-	u32            ca;
-};
-
-#define EOF		0x8000
-#define SIZE_MASK	0x3fff
-
-struct i596_tbd {
-	unsigned short size;
-	unsigned short pad;
-	dma_addr_t     next;
-	dma_addr_t     data;
-	u32 cache_pad[5];		/* Total 32 bytes... */
-};
-
-/* The command structure has two 'next' pointers; v_next is the address of
- * the next command as seen by the CPU, b_next is the address of the next
- * command as seen by the 82596.  The b_next pointer, as used by the 82596
- * always references the status field of the next command, rather than the
- * v_next field, because the 82596 is unaware of v_next.  It may seem more
- * logical to put v_next at the end of the structure, but we cannot do that
- * because the 82596 expects other fields to be there, depending on command
- * type.
- */
-
-struct i596_cmd {
-	struct i596_cmd *v_next;	/* Address from CPUs viewpoint */
-	unsigned short status;
-	unsigned short command;
-	dma_addr_t     b_next;	/* Address from i596 viewpoint */
-};
-
-struct tx_cmd {
-	struct i596_cmd cmd;
-	dma_addr_t     tbd;
-	unsigned short size;
-	unsigned short pad;
-	struct sk_buff *skb;		/* So we can free it after tx */
-	dma_addr_t dma_addr;
-#ifdef __LP64__
-	u32 cache_pad[6];		/* Total 64 bytes... */
-#else
-	u32 cache_pad[1];		/* Total 32 bytes... */
-#endif
-};
-
-struct tdr_cmd {
-	struct i596_cmd cmd;
-	unsigned short status;
-	unsigned short pad;
-};
-
-struct mc_cmd {
-	struct i596_cmd cmd;
-	short mc_cnt;
-	char mc_addrs[MAX_MC_CNT*6];
-};
-
-struct sa_cmd {
-	struct i596_cmd cmd;
-	char eth_addr[8];
-};
-
-struct cf_cmd {
-	struct i596_cmd cmd;
-	char i596_config[16];
-};
-
-struct i596_rfd {
-	unsigned short stat;
-	unsigned short cmd;
-	dma_addr_t     b_next;	/* Address from i596 viewpoint */
-	dma_addr_t     rbd;
-	unsigned short count;
-	unsigned short size;
-	struct i596_rfd *v_next;	/* Address from CPUs viewpoint */
-	struct i596_rfd *v_prev;
-#ifndef __LP64__
-	u32 cache_pad[2];		/* Total 32 bytes... */
-#endif
-};
-
-struct i596_rbd {
-    /* hardware data */
-    unsigned short count;
-    unsigned short zero1;
-    dma_addr_t     b_next;
-    dma_addr_t     b_data;		/* Address from i596 viewpoint */
-    unsigned short size;
-    unsigned short zero2;
-    /* driver data */
-    struct sk_buff *skb;
-    struct i596_rbd *v_next;
-    dma_addr_t     b_addr;		/* This rbd addr from i596 view */
-    unsigned char *v_data;		/* Address from CPUs viewpoint */
-					/* Total 32 bytes... */
-#ifdef __LP64__
-    u32 cache_pad[4];
-#endif
-};
-
-/* These values as chosen so struct i596_private fits in one page... */
-
-#define TX_RING_SIZE 32
-#define RX_RING_SIZE 16
-
-struct i596_scb {
-	unsigned short status;
-	unsigned short command;
-	dma_addr_t    cmd;
-	dma_addr_t    rfd;
-	u32           crc_err;
-	u32           align_err;
-	u32           resource_err;
-	u32           over_err;
-	u32           rcvdt_err;
-	u32           short_err;
-	unsigned short t_on;
-	unsigned short t_off;
-};
-
-struct i596_iscp {
-	u32           stat;
-	dma_addr_t    scb;
-};
-
-struct i596_scp {
-	u32           sysbus;
-	u32            pad;
-	dma_addr_t    iscp;
-};
-
-struct i596_private {
-	volatile struct i596_scp scp		__attribute__((aligned(32)));
-	volatile struct i596_iscp iscp		__attribute__((aligned(32)));
-	volatile struct i596_scb scb		__attribute__((aligned(32)));
-	struct sa_cmd sa_cmd			__attribute__((aligned(32)));
-	struct cf_cmd cf_cmd			__attribute__((aligned(32)));
-	struct tdr_cmd tdr_cmd			__attribute__((aligned(32)));
-	struct mc_cmd mc_cmd			__attribute__((aligned(32)));
-	struct i596_rfd rfds[RX_RING_SIZE]	__attribute__((aligned(32)));
-	struct i596_rbd rbds[RX_RING_SIZE]	__attribute__((aligned(32)));
-	struct tx_cmd tx_cmds[TX_RING_SIZE]	__attribute__((aligned(32)));
-	struct i596_tbd tbds[TX_RING_SIZE]	__attribute__((aligned(32)));
-	u32    stat;
-	int last_restart;
-	struct i596_rfd *rfd_head;
-	struct i596_rbd *rbd_head;
-	struct i596_cmd *cmd_tail;
-	struct i596_cmd *cmd_head;
-	int cmd_backlog;
-	u32    last_cmd;
-	struct net_device_stats stats;
-	int next_tx_cmd;
-	int options;
-	spinlock_t lock;
-	dma_addr_t dma_addr;
-	struct device *dev;
-};
-
-static const char init_setup[] =
-{
-	0x8E,			/* length, prefetch on */
-	0xC8,			/* fifo to 8, monitor off */
-	0x80,			/* don't save bad frames */
-	0x2E,			/* No source address insertion, 8 byte preamble */
-	0x00,			/* priority and backoff defaults */
-	0x60,			/* interframe spacing */
-	0x00,			/* slot time LSB */
-	0xf2,			/* slot time and retries */
-	0x00,			/* promiscuous mode */
-	0x00,			/* collision detect */
-	0x40,			/* minimum frame length */
-	0xff,
-	0x00,
-	0x7f /*  *multi IA */ };
-
-static int i596_open(struct net_device *dev);
-static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev);
-static irqreturn_t i596_interrupt(int irq, void *dev_id);
-static int i596_close(struct net_device *dev);
-static struct net_device_stats *i596_get_stats(struct net_device *dev);
-static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd);
-static void i596_tx_timeout (struct net_device *dev);
-static void print_eth(unsigned char *buf, char *str);
-static void set_multicast_list(struct net_device *dev);
-
-static int rx_ring_size = RX_RING_SIZE;
-static int ticks_limit = 100;
-static int max_cmd_backlog = TX_RING_SIZE-1;
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void i596_poll_controller(struct net_device *dev);
-#endif
-
-
 static inline void CA(struct net_device *dev)
 {
 	gsc_writel(0, dev->base_addr + PA_CHANNEL_ATTENTION);
@@ -446,1079 +153,20 @@ static inline void MPU_PORT(struct net_device *dev, int c, dma_addr_t x)
 	gsc_writel(b, dev->base_addr + PA_CPU_PORT_L_ACCESS);
 }
 
-
-static inline int wait_istat(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
-{
-	CHECK_INV(lp, &(lp->iscp), sizeof(struct i596_iscp));
-	while (--delcnt && lp->iscp.stat) {
-		udelay(10);
-		CHECK_INV(lp, &(lp->iscp), sizeof(struct i596_iscp));
-	}
-	if (!delcnt) {
-		printk("%s: %s, iscp.stat %04x, didn't clear\n",
-		     dev->name, str, lp->iscp.stat);
-		return -1;
-	}
-	else
-		return 0;
-}
-
-
-static inline int wait_cmd(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
-{
-	CHECK_INV(lp, &(lp->scb), sizeof(struct i596_scb));
-	while (--delcnt && lp->scb.command) {
-		udelay(10);
-		CHECK_INV(lp, &(lp->scb), sizeof(struct i596_scb));
-	}
-	if (!delcnt) {
-		printk("%s: %s, status %4.4x, cmd %4.4x.\n",
-		     dev->name, str, lp->scb.status, lp->scb.command);
-		return -1;
-	}
-	else
-		return 0;
-}
-
-
-static void i596_display_data(struct net_device *dev)
-{
-	struct i596_private *lp = dev->priv;
-	struct i596_cmd *cmd;
-	struct i596_rfd *rfd;
-	struct i596_rbd *rbd;
-
-	printk("lp and scp at %p, .sysbus = %08x, .iscp = %08x\n",
-	       &lp->scp, lp->scp.sysbus, lp->scp.iscp);
-	printk("iscp at %p, iscp.stat = %08x, .scb = %08x\n",
-	       &lp->iscp, lp->iscp.stat, lp->iscp.scb);
-	printk("scb at %p, scb.status = %04x, .command = %04x,"
-		" .cmd = %08x, .rfd = %08x\n",
-	       &lp->scb, lp->scb.status, lp->scb.command,
-		lp->scb.cmd, lp->scb.rfd);
-	printk("   errors: crc %x, align %x, resource %x,"
-               " over %x, rcvdt %x, short %x\n",
-		lp->scb.crc_err, lp->scb.align_err, lp->scb.resource_err,
-		lp->scb.over_err, lp->scb.rcvdt_err, lp->scb.short_err);
-	cmd = lp->cmd_head;
-	while (cmd != NULL) {
-		printk("cmd at %p, .status = %04x, .command = %04x, .b_next = %08x\n",
-		  cmd, cmd->status, cmd->command, cmd->b_next);
-		cmd = cmd->v_next;
-	}
-	rfd = lp->rfd_head;
-	printk("rfd_head = %p\n", rfd);
-	do {
-		printk("   %p .stat %04x, .cmd %04x, b_next %08x, rbd %08x,"
-                        " count %04x\n",
-			rfd, rfd->stat, rfd->cmd, rfd->b_next, rfd->rbd,
-			rfd->count);
-		rfd = rfd->v_next;
-	} while (rfd != lp->rfd_head);
-	rbd = lp->rbd_head;
-	printk("rbd_head = %p\n", rbd);
-	do {
-		printk("   %p .count %04x, b_next %08x, b_data %08x, size %04x\n",
-			rbd, rbd->count, rbd->b_next, rbd->b_data, rbd->size);
-		rbd = rbd->v_next;
-	} while (rbd != lp->rbd_head);
-	CHECK_INV(lp, lp, sizeof(struct i596_private));
-}
-
-
-#if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET)
-static void i596_error(int irq, void *dev_id)
-{
-	struct net_device *dev = dev_id;
-	volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
-
-	pcc2[0x28] = 1;
-	pcc2[0x2b] = 0x1d;
-	printk("%s: Error interrupt\n", dev->name);
-	i596_display_data(dev);
-}
-#endif
-
-#define virt_to_dma(lp,v) ((lp)->dma_addr + (dma_addr_t)((unsigned long)(v)-(unsigned long)(lp)))
-
-static inline void init_rx_bufs(struct net_device *dev)
-{
-	struct i596_private *lp = dev->priv;
-	int i;
-	struct i596_rfd *rfd;
-	struct i596_rbd *rbd;
-
-	/* First build the Receive Buffer Descriptor List */
-
-	for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
-		dma_addr_t dma_addr;
-		struct sk_buff *skb = dev_alloc_skb(PKT_BUF_SZ + 4);
-
-		if (skb == NULL)
-			panic("%s: alloc_skb() failed", __FILE__);
-		skb_reserve(skb, 2);
-		dma_addr = dma_map_single(lp->dev, skb->data,PKT_BUF_SZ,
-					  DMA_FROM_DEVICE);
-		skb->dev = dev;
-		rbd->v_next = rbd+1;
-		rbd->b_next = WSWAPrbd(virt_to_dma(lp,rbd+1));
-		rbd->b_addr = WSWAPrbd(virt_to_dma(lp,rbd));
-		rbd->skb = skb;
-		rbd->v_data = skb->data;
-		rbd->b_data = WSWAPchar(dma_addr);
-		rbd->size = PKT_BUF_SZ;
-	}
-	lp->rbd_head = lp->rbds;
-	rbd = lp->rbds + rx_ring_size - 1;
-	rbd->v_next = lp->rbds;
-	rbd->b_next = WSWAPrbd(virt_to_dma(lp,lp->rbds));
-
-	/* Now build the Receive Frame Descriptor List */
-
-	for (i = 0, rfd = lp->rfds; i < rx_ring_size; i++, rfd++) {
-		rfd->rbd = I596_NULL;
-		rfd->v_next = rfd+1;
-		rfd->v_prev = rfd-1;
-		rfd->b_next = WSWAPrfd(virt_to_dma(lp,rfd+1));
-		rfd->cmd = CMD_FLEX;
-	}
-	lp->rfd_head = lp->rfds;
-	lp->scb.rfd = WSWAPrfd(virt_to_dma(lp,lp->rfds));
-	rfd = lp->rfds;
-	rfd->rbd = WSWAPrbd(virt_to_dma(lp,lp->rbd_head));
-	rfd->v_prev = lp->rfds + rx_ring_size - 1;
-	rfd = lp->rfds + rx_ring_size - 1;
-	rfd->v_next = lp->rfds;
-	rfd->b_next = WSWAPrfd(virt_to_dma(lp,lp->rfds));
-	rfd->cmd = CMD_EOL|CMD_FLEX;
-
-	CHECK_WBACK_INV(lp, lp, sizeof(struct i596_private));
-}
-
-static inline void remove_rx_bufs(struct net_device *dev)
-{
-	struct i596_private *lp = dev->priv;
-	struct i596_rbd *rbd;
-	int i;
-
-	for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
-		if (rbd->skb == NULL)
-			break;
-		dma_unmap_single(lp->dev,
-				 (dma_addr_t)WSWAPchar(rbd->b_data),
-				 PKT_BUF_SZ, DMA_FROM_DEVICE);
-		dev_kfree_skb(rbd->skb);
-	}
-}
-
-
-static void rebuild_rx_bufs(struct net_device *dev)
-{
-	struct i596_private *lp = dev->priv;
-	int i;
-
-	/* Ensure rx frame/buffer descriptors are tidy */
-
-	for (i = 0; i < rx_ring_size; i++) {
-		lp->rfds[i].rbd = I596_NULL;
-		lp->rfds[i].cmd = CMD_FLEX;
-	}
-	lp->rfds[rx_ring_size-1].cmd = CMD_EOL|CMD_FLEX;
-	lp->rfd_head = lp->rfds;
-	lp->scb.rfd = WSWAPrfd(virt_to_dma(lp,lp->rfds));
-	lp->rbd_head = lp->rbds;
-	lp->rfds[0].rbd = WSWAPrbd(virt_to_dma(lp,lp->rbds));
-
-	CHECK_WBACK_INV(lp, lp, sizeof(struct i596_private));
-}
-
-
-static int init_i596_mem(struct net_device *dev)
-{
-	struct i596_private *lp = dev->priv;
-	unsigned long flags;
-
-	disable_irq(dev->irq);	/* disable IRQs from LAN */
-	DEB(DEB_INIT,
-		printk("RESET 82596 port: %lx (with IRQ %d disabled)\n",
-		       (dev->base_addr + PA_I82596_RESET),
-		       dev->irq));
-
-	gsc_writel(0, (dev->base_addr + PA_I82596_RESET)); /* Hard Reset */
-	udelay(100);			/* Wait 100us - seems to help */
-
-	/* change the scp address */
-
-	lp->last_cmd = jiffies;
-
-
-	lp->scp.sysbus = 0x0000006c;
-	lp->scp.iscp = WSWAPiscp(virt_to_dma(lp,&(lp->iscp)));
-	lp->iscp.scb = WSWAPscb(virt_to_dma(lp,&(lp->scb)));
-	lp->iscp.stat = ISCP_BUSY;
-	lp->cmd_backlog = 0;
-
-	lp->cmd_head = NULL;
-        lp->scb.cmd = I596_NULL;
-
-	DEB(DEB_INIT, printk("%s: starting i82596.\n", dev->name));
-
-	CHECK_WBACK(lp, &(lp->scp), sizeof(struct i596_scp));
-	CHECK_WBACK(lp, &(lp->iscp), sizeof(struct i596_iscp));
-
-	MPU_PORT(dev, PORT_ALTSCP, virt_to_dma(lp,&lp->scp));
-
-	CA(dev);
-
-	if (wait_istat(dev, lp, 1000, "initialization timed out"))
-		goto failed;
-	DEB(DEB_INIT, printk("%s: i82596 initialization successful\n", dev->name));
-
-	/* Ensure rx frame/buffer descriptors are tidy */
-	rebuild_rx_bufs(dev);
-
-	lp->scb.command = 0;
-	CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
-
-	enable_irq(dev->irq);	/* enable IRQs from LAN */
-
-	DEB(DEB_INIT, printk("%s: queuing CmdConfigure\n", dev->name));
-	memcpy(lp->cf_cmd.i596_config, init_setup, sizeof(init_setup));
-	lp->cf_cmd.cmd.command = CmdConfigure;
-	CHECK_WBACK(lp, &(lp->cf_cmd), sizeof(struct cf_cmd));
-	i596_add_cmd(dev, &lp->cf_cmd.cmd);
-
-	DEB(DEB_INIT, printk("%s: queuing CmdSASetup\n", dev->name));
-	memcpy(lp->sa_cmd.eth_addr, dev->dev_addr, 6);
-	lp->sa_cmd.cmd.command = CmdSASetup;
-	CHECK_WBACK(lp, &(lp->sa_cmd), sizeof(struct sa_cmd));
-	i596_add_cmd(dev, &lp->sa_cmd.cmd);
-
-	DEB(DEB_INIT, printk("%s: queuing CmdTDR\n", dev->name));
-	lp->tdr_cmd.cmd.command = CmdTDR;
-	CHECK_WBACK(lp, &(lp->tdr_cmd), sizeof(struct tdr_cmd));
-	i596_add_cmd(dev, &lp->tdr_cmd.cmd);
-
-	spin_lock_irqsave (&lp->lock, flags);
-
-	if (wait_cmd(dev, lp, 1000, "timed out waiting to issue RX_START")) {
-		spin_unlock_irqrestore (&lp->lock, flags);
-		goto failed;
-	}
-	DEB(DEB_INIT, printk("%s: Issuing RX_START\n", dev->name));
-	lp->scb.command = RX_START;
-	lp->scb.rfd = WSWAPrfd(virt_to_dma(lp,lp->rfds));
-	CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
-
-	CA(dev);
-
-	spin_unlock_irqrestore (&lp->lock, flags);
-
-	if (wait_cmd(dev, lp, 1000, "RX_START not processed"))
-		goto failed;
-	DEB(DEB_INIT, printk("%s: Receive unit started OK\n", dev->name));
-
-	return 0;
-
-failed:
-	printk("%s: Failed to initialise 82596\n", dev->name);
-	MPU_PORT(dev, PORT_RESET, 0);
-	return -1;
-}
-
-
-static inline int i596_rx(struct net_device *dev)
-{
-	struct i596_private *lp = dev->priv;
-	struct i596_rfd *rfd;
-	struct i596_rbd *rbd;
-	int frames = 0;
-
-	DEB(DEB_RXFRAME, printk("i596_rx(), rfd_head %p, rbd_head %p\n",
-			lp->rfd_head, lp->rbd_head));
-
-
-	rfd = lp->rfd_head;		/* Ref next frame to check */
-
-	CHECK_INV(lp, rfd, sizeof(struct i596_rfd));
-	while ((rfd->stat) & STAT_C) {	/* Loop while complete frames */
-		if (rfd->rbd == I596_NULL)
-			rbd = NULL;
-		else if (rfd->rbd == lp->rbd_head->b_addr) {
-			rbd = lp->rbd_head;
-			CHECK_INV(lp, rbd, sizeof(struct i596_rbd));
-		}
-		else {
-			printk("%s: rbd chain broken!\n", dev->name);
-			/* XXX Now what? */
-			rbd = NULL;
-		}
-		DEB(DEB_RXFRAME, printk("  rfd %p, rfd.rbd %08x, rfd.stat %04x\n",
-			rfd, rfd->rbd, rfd->stat));
-
-		if (rbd != NULL && ((rfd->stat) & STAT_OK)) {
-			/* a good frame */
-			int pkt_len = rbd->count & 0x3fff;
-			struct sk_buff *skb = rbd->skb;
-			int rx_in_place = 0;
-
-			DEB(DEB_RXADDR,print_eth(rbd->v_data, "received"));
-			frames++;
-
-			/* Check if the packet is long enough to just accept
-			 * without copying to a properly sized skbuff.
-			 */
-
-			if (pkt_len > rx_copybreak) {
-				struct sk_buff *newskb;
-				dma_addr_t dma_addr;
-
-				dma_unmap_single(lp->dev,(dma_addr_t)WSWAPchar(rbd->b_data), PKT_BUF_SZ, DMA_FROM_DEVICE);
-				/* Get fresh skbuff to replace filled one. */
-				newskb = dev_alloc_skb(PKT_BUF_SZ + 4);
-				if (newskb == NULL) {
-					skb = NULL;	/* drop pkt */
-					goto memory_squeeze;
-				}
-				skb_reserve(newskb, 2);
-
-				/* Pass up the skb already on the Rx ring. */
-				skb_put(skb, pkt_len);
-				rx_in_place = 1;
-				rbd->skb = newskb;
-				newskb->dev = dev;
-				dma_addr = dma_map_single(lp->dev, newskb->data, PKT_BUF_SZ, DMA_FROM_DEVICE);
-				rbd->v_data = newskb->data;
-				rbd->b_data = WSWAPchar(dma_addr);
-				CHECK_WBACK_INV(lp, rbd, sizeof(struct i596_rbd));
-			}
-			else
-				skb = dev_alloc_skb(pkt_len + 2);
-memory_squeeze:
-			if (skb == NULL) {
-				/* XXX tulip.c can defer packets here!! */
-				printk("%s: i596_rx Memory squeeze, dropping packet.\n", dev->name);
-				lp->stats.rx_dropped++;
-			}
-			else {
-				skb->dev = dev;
-				if (!rx_in_place) {
-					/* 16 byte align the data fields */
-					dma_sync_single_for_cpu(lp->dev, (dma_addr_t)WSWAPchar(rbd->b_data), PKT_BUF_SZ, DMA_FROM_DEVICE);
-					skb_reserve(skb, 2);
-					memcpy(skb_put(skb,pkt_len), rbd->v_data, pkt_len);
-					dma_sync_single_for_device(lp->dev, (dma_addr_t)WSWAPchar(rbd->b_data), PKT_BUF_SZ, DMA_FROM_DEVICE);
-				}
-				skb->len = pkt_len;
-				skb->protocol=eth_type_trans(skb,dev);
-				netif_rx(skb);
-				dev->last_rx = jiffies;
-				lp->stats.rx_packets++;
-				lp->stats.rx_bytes+=pkt_len;
-			}
-		}
-		else {
-			DEB(DEB_ERRORS, printk("%s: Error, rfd.stat = 0x%04x\n",
-					dev->name, rfd->stat));
-			lp->stats.rx_errors++;
-			if ((rfd->stat) & 0x0001)
-				lp->stats.collisions++;
-			if ((rfd->stat) & 0x0080)
-				lp->stats.rx_length_errors++;
-			if ((rfd->stat) & 0x0100)
-				lp->stats.rx_over_errors++;
-			if ((rfd->stat) & 0x0200)
-				lp->stats.rx_fifo_errors++;
-			if ((rfd->stat) & 0x0400)
-				lp->stats.rx_frame_errors++;
-			if ((rfd->stat) & 0x0800)
-				lp->stats.rx_crc_errors++;
-			if ((rfd->stat) & 0x1000)
-				lp->stats.rx_length_errors++;
-		}
-
-		/* Clear the buffer descriptor count and EOF + F flags */
-
-		if (rbd != NULL && (rbd->count & 0x4000)) {
-			rbd->count = 0;
-			lp->rbd_head = rbd->v_next;
-			CHECK_WBACK_INV(lp, rbd, sizeof(struct i596_rbd));
-		}
-
-		/* Tidy the frame descriptor, marking it as end of list */
-
-		rfd->rbd = I596_NULL;
-		rfd->stat = 0;
-		rfd->cmd = CMD_EOL|CMD_FLEX;
-		rfd->count = 0;
-
-		/* Remove end-of-list from old end descriptor */
-
-		rfd->v_prev->cmd = CMD_FLEX;
-
-		/* Update record of next frame descriptor to process */
-
-		lp->scb.rfd = rfd->b_next;
-		lp->rfd_head = rfd->v_next;
-		CHECK_WBACK_INV(lp, rfd->v_prev, sizeof(struct i596_rfd));
-		CHECK_WBACK_INV(lp, rfd, sizeof(struct i596_rfd));
-		rfd = lp->rfd_head;
-		CHECK_INV(lp, rfd, sizeof(struct i596_rfd));
-	}
-
-	DEB(DEB_RXFRAME, printk("frames %d\n", frames));
-
-	return 0;
-}
-
-
-static inline void i596_cleanup_cmd(struct net_device *dev, struct i596_private *lp)
-{
-	struct i596_cmd *ptr;
-
-	while (lp->cmd_head != NULL) {
-		ptr = lp->cmd_head;
-		lp->cmd_head = ptr->v_next;
-		lp->cmd_backlog--;
-
-		switch ((ptr->command) & 0x7) {
-		case CmdTx:
-			{
-				struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
-				struct sk_buff *skb = tx_cmd->skb;
-				dma_unmap_single(lp->dev, tx_cmd->dma_addr, skb->len, DMA_TO_DEVICE);
-
-				dev_kfree_skb(skb);
-
-				lp->stats.tx_errors++;
-				lp->stats.tx_aborted_errors++;
-
-				ptr->v_next = NULL;
-				ptr->b_next = I596_NULL;
-				tx_cmd->cmd.command = 0;  /* Mark as free */
-				break;
-			}
-		default:
-			ptr->v_next = NULL;
-			ptr->b_next = I596_NULL;
-		}
-		CHECK_WBACK_INV(lp, ptr, sizeof(struct i596_cmd));
-	}
-
-	wait_cmd(dev, lp, 100, "i596_cleanup_cmd timed out");
-	lp->scb.cmd = I596_NULL;
-	CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
-}
-
-
-static inline void i596_reset(struct net_device *dev, struct i596_private *lp)
-{
-	unsigned long flags;
-
-	DEB(DEB_RESET, printk("i596_reset\n"));
-
-	spin_lock_irqsave (&lp->lock, flags);
-
-	wait_cmd(dev, lp, 100, "i596_reset timed out");
-
-	netif_stop_queue(dev);
-
-	/* FIXME: this command might cause an lpmc */
-	lp->scb.command = CUC_ABORT | RX_ABORT;
-	CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
-	CA(dev);
-
-	/* wait for shutdown */
-	wait_cmd(dev, lp, 1000, "i596_reset 2 timed out");
-	spin_unlock_irqrestore (&lp->lock, flags);
-
-	i596_cleanup_cmd(dev,lp);
-	i596_rx(dev);
-
-	netif_start_queue(dev);
-	init_i596_mem(dev);
-}
-
-
-static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd)
-{
-	struct i596_private *lp = dev->priv;
-	unsigned long flags;
-
-	DEB(DEB_ADDCMD, printk("i596_add_cmd cmd_head %p\n", lp->cmd_head));
-
-	cmd->status = 0;
-	cmd->command |= (CMD_EOL | CMD_INTR);
-	cmd->v_next = NULL;
-	cmd->b_next = I596_NULL;
-	CHECK_WBACK(lp, cmd, sizeof(struct i596_cmd));
-
-	spin_lock_irqsave (&lp->lock, flags);
-
-	if (lp->cmd_head != NULL) {
-		lp->cmd_tail->v_next = cmd;
-		lp->cmd_tail->b_next = WSWAPcmd(virt_to_dma(lp,&cmd->status));
-		CHECK_WBACK(lp, lp->cmd_tail, sizeof(struct i596_cmd));
-	} else {
-		lp->cmd_head = cmd;
-		wait_cmd(dev, lp, 100, "i596_add_cmd timed out");
-		lp->scb.cmd = WSWAPcmd(virt_to_dma(lp,&cmd->status));
-		lp->scb.command = CUC_START;
-		CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
-		CA(dev);
-	}
-	lp->cmd_tail = cmd;
-	lp->cmd_backlog++;
-
-	spin_unlock_irqrestore (&lp->lock, flags);
-
-	if (lp->cmd_backlog > max_cmd_backlog) {
-		unsigned long tickssofar = jiffies - lp->last_cmd;
-
-		if (tickssofar < ticks_limit)
-			return;
-
-		printk("%s: command unit timed out, status resetting.\n", dev->name);
-#if 1
-		i596_reset(dev, lp);
-#endif
-	}
-}
-
-#if 0
-/* this function makes a perfectly adequate probe...  but we have a
-   device list */
-static int i596_test(struct net_device *dev)
-{
-	struct i596_private *lp = dev->priv;
-	volatile int *tint;
-	u32 data;
-
-	tint = (volatile int *)(&(lp->scp));
-	data = virt_to_dma(lp,tint);
-
-	tint[1] = -1;
-	CHECK_WBACK(lp, tint, PAGE_SIZE);
-
-	MPU_PORT(dev, 1, data);
-
-	for(data = 1000000; data; data--) {
-		CHECK_INV(lp, tint, PAGE_SIZE);
-		if(tint[1] != -1)
-			break;
-
-	}
-
-	printk("i596_test result %d\n", tint[1]);
-
-}
-#endif
-
-
-static int i596_open(struct net_device *dev)
-{
-	DEB(DEB_OPEN, printk("%s: i596_open() irq %d.\n", dev->name, dev->irq));
-
-	if (request_irq(dev->irq, &i596_interrupt, 0, "i82596", dev)) {
-		printk("%s: IRQ %d not free\n", dev->name, dev->irq);
-		goto out;
-	}
-
-	init_rx_bufs(dev);
-
-	if (init_i596_mem(dev)) {
-		printk("%s: Failed to init memory\n", dev->name);
-		goto out_remove_rx_bufs;
-	}
-
-	netif_start_queue(dev);
-
-	return 0;
-
-out_remove_rx_bufs:
-	remove_rx_bufs(dev);
-	free_irq(dev->irq, dev);
-out:
-	return -EAGAIN;
-}
-
-static void i596_tx_timeout (struct net_device *dev)
-{
-	struct i596_private *lp = dev->priv;
-
-	/* Transmitter timeout, serious problems. */
-	DEB(DEB_ERRORS, printk("%s: transmit timed out, status resetting.\n",
-			dev->name));
-
-	lp->stats.tx_errors++;
-
-	/* Try to restart the adaptor */
-	if (lp->last_restart == lp->stats.tx_packets) {
-		DEB(DEB_ERRORS, printk("Resetting board.\n"));
-		/* Shutdown and restart */
-		i596_reset (dev, lp);
-	} else {
-		/* Issue a channel attention signal */
-		DEB(DEB_ERRORS, printk("Kicking board.\n"));
-		lp->scb.command = CUC_START | RX_START;
-		CHECK_WBACK_INV(lp, &(lp->scb), sizeof(struct i596_scb));
-		CA (dev);
-		lp->last_restart = lp->stats.tx_packets;
-	}
-
-	dev->trans_start = jiffies;
-	netif_wake_queue (dev);
-}
-
-
-static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
-	struct i596_private *lp = dev->priv;
-	struct tx_cmd *tx_cmd;
-	struct i596_tbd *tbd;
-	short length = skb->len;
-	dev->trans_start = jiffies;
-
-	DEB(DEB_STARTTX, printk("%s: i596_start_xmit(%x,%p) called\n", dev->name,
-				skb->len, skb->data));
-
-	if (length < ETH_ZLEN) {
-		if (skb_padto(skb, ETH_ZLEN))
-			return 0;
-		length = ETH_ZLEN;
-	}
-
-	netif_stop_queue(dev);
-
-	tx_cmd = lp->tx_cmds + lp->next_tx_cmd;
-	tbd = lp->tbds + lp->next_tx_cmd;
-
-	if (tx_cmd->cmd.command) {
-		DEB(DEB_ERRORS, printk("%s: xmit ring full, dropping packet.\n",
-				dev->name));
-		lp->stats.tx_dropped++;
-
-		dev_kfree_skb(skb);
-	} else {
-		if (++lp->next_tx_cmd == TX_RING_SIZE)
-			lp->next_tx_cmd = 0;
-		tx_cmd->tbd = WSWAPtbd(virt_to_dma(lp,tbd));
-		tbd->next = I596_NULL;
-
-		tx_cmd->cmd.command = CMD_FLEX | CmdTx;
-		tx_cmd->skb = skb;
-
-		tx_cmd->pad = 0;
-		tx_cmd->size = 0;
-		tbd->pad = 0;
-		tbd->size = EOF | length;
-
-		tx_cmd->dma_addr = dma_map_single(lp->dev, skb->data, skb->len,
-				DMA_TO_DEVICE);
-		tbd->data = WSWAPchar(tx_cmd->dma_addr);
-
-		DEB(DEB_TXADDR,print_eth(skb->data, "tx-queued"));
-		CHECK_WBACK_INV(lp, tx_cmd, sizeof(struct tx_cmd));
-		CHECK_WBACK_INV(lp, tbd, sizeof(struct i596_tbd));
-		i596_add_cmd(dev, &tx_cmd->cmd);
-
-		lp->stats.tx_packets++;
-		lp->stats.tx_bytes += length;
-	}
-
-	netif_start_queue(dev);
-
-	return 0;
-}
-
-static void print_eth(unsigned char *add, char *str)
-{
-	int i;
-
-	printk("i596 0x%p, ", add);
-	for (i = 0; i < 6; i++)
-		printk(" %02X", add[i + 6]);
-	printk(" -->");
-	for (i = 0; i < 6; i++)
-		printk(" %02X", add[i]);
-	printk(" %02X%02X, %s\n", add[12], add[13], str);
-}
-
-
 #define LAN_PROM_ADDR	0xF0810000
 
-static int __devinit i82596_probe(struct net_device *dev,
-				  struct device *gen_dev)
-{
-	int i;
-	struct i596_private *lp;
-	char eth_addr[6];
-	dma_addr_t dma_addr;
-
-	/* This lot is ensure things have been cache line aligned. */
-	BUILD_BUG_ON(sizeof(struct i596_rfd) != 32);
-	BUILD_BUG_ON(sizeof(struct i596_rbd) &  31);
-	BUILD_BUG_ON(sizeof(struct tx_cmd)   &  31);
-	BUILD_BUG_ON(sizeof(struct i596_tbd) != 32);
-#ifndef __LP64__
-	BUILD_BUG_ON(sizeof(struct i596_private) > 4096);
-#endif
-
-	if (!dev->base_addr || !dev->irq)
-		return -ENODEV;
-
-	if (pdc_lan_station_id(eth_addr, dev->base_addr)) {
-		for (i=0; i < 6; i++) {
-			eth_addr[i] = gsc_readb(LAN_PROM_ADDR + i);
-		}
-		printk(KERN_INFO "%s: MAC of HP700 LAN read from EEPROM\n", __FILE__);
-	}
-
-	dev->mem_start = (unsigned long) dma_alloc_noncoherent(gen_dev,
-		sizeof(struct i596_private), &dma_addr, GFP_KERNEL);
-	if (!dev->mem_start) {
-		printk(KERN_ERR "%s: Couldn't get shared memory\n", __FILE__);
-		return -ENOMEM;
-	}
-
-	for (i = 0; i < 6; i++)
-		dev->dev_addr[i] = eth_addr[i];
-
-	/* The 82596-specific entries in the device structure. */
-	dev->open = i596_open;
-	dev->stop = i596_close;
-	dev->hard_start_xmit = i596_start_xmit;
-	dev->get_stats = i596_get_stats;
-	dev->set_multicast_list = set_multicast_list;
-	dev->tx_timeout = i596_tx_timeout;
-	dev->watchdog_timeo = TX_TIMEOUT;
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	dev->poll_controller = i596_poll_controller;
-#endif
-
-	dev->priv = (void *)(dev->mem_start);
-
-	lp = dev->priv;
-	memset(lp, 0, sizeof(struct i596_private));
-
-	lp->scb.command = 0;
-	lp->scb.cmd = I596_NULL;
-	lp->scb.rfd = I596_NULL;
-	spin_lock_init(&lp->lock);
-	lp->dma_addr = dma_addr;
-	lp->dev = gen_dev;
-
-	CHECK_WBACK_INV(lp, dev->mem_start, sizeof(struct i596_private));
-
-	i = register_netdev(dev);
-	if (i) {
-		lp = dev->priv;
-		dma_free_noncoherent(lp->dev, sizeof(struct i596_private),
-				    (void *)dev->mem_start, lp->dma_addr);
-		return i;
-	};
-
-	DEB(DEB_PROBE, printk(KERN_INFO "%s: 82596 at %#3lx,", dev->name, dev->base_addr));
-	for (i = 0; i < 6; i++)
-		DEB(DEB_PROBE, printk(" %2.2X", dev->dev_addr[i]));
-	DEB(DEB_PROBE, printk(" IRQ %d.\n", dev->irq));
-	DEB(DEB_INIT, printk(KERN_INFO "%s: lp at 0x%p (%d bytes), lp->scb at 0x%p\n",
-		dev->name, lp, (int)sizeof(struct i596_private), &lp->scb));
-
-	return 0;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void i596_poll_controller(struct net_device *dev)
-{
-	disable_irq(dev->irq);
-	i596_interrupt(dev->irq, dev);
-	enable_irq(dev->irq);
-}
-#endif
-
-static irqreturn_t i596_interrupt(int irq, void *dev_id)
-{
-	struct net_device *dev = dev_id;
-	struct i596_private *lp;
-	unsigned short status, ack_cmd = 0;
-
-	if (dev == NULL) {
-		printk("%s: irq %d for unknown device.\n", __FUNCTION__, irq);
-		return IRQ_NONE;
-	}
-
-	lp = dev->priv;
-
-	spin_lock (&lp->lock);
-
-	wait_cmd(dev, lp, 100, "i596 interrupt, timeout");
-	status = lp->scb.status;
-
-	DEB(DEB_INTS, printk("%s: i596 interrupt, IRQ %d, status %4.4x.\n",
-			dev->name, irq, status));
-
-	ack_cmd = status & 0xf000;
-
-	if (!ack_cmd) {
-		DEB(DEB_ERRORS, printk("%s: interrupt with no events\n", dev->name));
-		spin_unlock (&lp->lock);
-		return IRQ_NONE;
-	}
-
-	if ((status & 0x8000) || (status & 0x2000)) {
-		struct i596_cmd *ptr;
-
-		if ((status & 0x8000))
-			DEB(DEB_INTS, printk("%s: i596 interrupt completed command.\n", dev->name));
-		if ((status & 0x2000))
-			DEB(DEB_INTS, printk("%s: i596 interrupt command unit inactive %x.\n", dev->name, status & 0x0700));
-
-		while (lp->cmd_head != NULL) {
-			CHECK_INV(lp, lp->cmd_head, sizeof(struct i596_cmd));
-			if (!(lp->cmd_head->status & STAT_C))
-				break;
-
-			ptr = lp->cmd_head;
-
-			DEB(DEB_STATUS, printk("cmd_head->status = %04x, ->command = %04x\n",
-				       lp->cmd_head->status, lp->cmd_head->command));
-			lp->cmd_head = ptr->v_next;
-			lp->cmd_backlog--;
-
-			switch ((ptr->command) & 0x7) {
-			case CmdTx:
-			    {
-				struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
-				struct sk_buff *skb = tx_cmd->skb;
-
-				if ((ptr->status) & STAT_OK) {
-					DEB(DEB_TXADDR, print_eth(skb->data, "tx-done"));
-				} else {
-					lp->stats.tx_errors++;
-					if ((ptr->status) & 0x0020)
-						lp->stats.collisions++;
-					if (!((ptr->status) & 0x0040))
-						lp->stats.tx_heartbeat_errors++;
-					if ((ptr->status) & 0x0400)
-						lp->stats.tx_carrier_errors++;
-					if ((ptr->status) & 0x0800)
-						lp->stats.collisions++;
-					if ((ptr->status) & 0x1000)
-						lp->stats.tx_aborted_errors++;
-				}
-				dma_unmap_single(lp->dev, tx_cmd->dma_addr, skb->len, DMA_TO_DEVICE);
-				dev_kfree_skb_irq(skb);
-
-				tx_cmd->cmd.command = 0; /* Mark free */
-				break;
-			    }
-			case CmdTDR:
-			    {
-				unsigned short status = ((struct tdr_cmd *)ptr)->status;
-
-				if (status & 0x8000) {
-					DEB(DEB_ANY, printk("%s: link ok.\n", dev->name));
-				} else {
-					if (status & 0x4000)
-						printk("%s: Transceiver problem.\n", dev->name);
-					if (status & 0x2000)
-						printk("%s: Termination problem.\n", dev->name);
-					if (status & 0x1000)
-						printk("%s: Short circuit.\n", dev->name);
-
-					DEB(DEB_TDR, printk("%s: Time %d.\n", dev->name, status & 0x07ff));
-				}
-				break;
-			    }
-			case CmdConfigure:
-				/* Zap command so set_multicast_list() knows it is free */
-				ptr->command = 0;
-				break;
-			}
-			ptr->v_next = NULL;
-		        ptr->b_next = I596_NULL;
-			CHECK_WBACK(lp, ptr, sizeof(struct i596_cmd));
-			lp->last_cmd = jiffies;
-		}
-
-		/* This mess is arranging that only the last of any outstanding
-		 * commands has the interrupt bit set.  Should probably really
-		 * only add to the cmd queue when the CU is stopped.
-		 */
-		ptr = lp->cmd_head;
-		while ((ptr != NULL) && (ptr != lp->cmd_tail)) {
-			struct i596_cmd *prev = ptr;
-
-			ptr->command &= 0x1fff;
-			ptr = ptr->v_next;
-			CHECK_WBACK_INV(lp, prev, sizeof(struct i596_cmd));
-		}
-
-		if ((lp->cmd_head != NULL))
-			ack_cmd |= CUC_START;
-		lp->scb.cmd = WSWAPcmd(virt_to_dma(lp,&lp->cmd_head->status));
-		CHECK_WBACK_INV(lp, &lp->scb, sizeof(struct i596_scb));
-	}
-	if ((status & 0x1000) || (status & 0x4000)) {
-		if ((status & 0x4000))
-			DEB(DEB_INTS, printk("%s: i596 interrupt received a frame.\n", dev->name));
-		i596_rx(dev);
-		/* Only RX_START if stopped - RGH 07-07-96 */
-		if (status & 0x1000) {
-			if (netif_running(dev)) {
-				DEB(DEB_ERRORS, printk("%s: i596 interrupt receive unit inactive, status 0x%x\n", dev->name, status));
-				ack_cmd |= RX_START;
-				lp->stats.rx_errors++;
-				lp->stats.rx_fifo_errors++;
-				rebuild_rx_bufs(dev);
-			}
-		}
-	}
-	wait_cmd(dev, lp, 100, "i596 interrupt, timeout");
-	lp->scb.command = ack_cmd;
-	CHECK_WBACK(lp, &lp->scb, sizeof(struct i596_scb));
-
-	/* DANGER: I suspect that some kind of interrupt
-	 acknowledgement aside from acking the 82596 might be needed
-	 here...  but it's running acceptably without */
-
-	CA(dev);
-
-	wait_cmd(dev, lp, 100, "i596 interrupt, exit timeout");
-	DEB(DEB_INTS, printk("%s: exiting interrupt.\n", dev->name));
-
-	spin_unlock (&lp->lock);
-	return IRQ_HANDLED;
-}
-
-static int i596_close(struct net_device *dev)
-{
-	struct i596_private *lp = dev->priv;
-	unsigned long flags;
-
-	netif_stop_queue(dev);
-
-	DEB(DEB_INIT, printk("%s: Shutting down ethercard, status was %4.4x.\n",
-		       dev->name, lp->scb.status));
-
-	spin_lock_irqsave(&lp->lock, flags);
-
-	wait_cmd(dev, lp, 100, "close1 timed out");
-	lp->scb.command = CUC_ABORT | RX_ABORT;
-	CHECK_WBACK(lp, &lp->scb, sizeof(struct i596_scb));
-
-	CA(dev);
-
-	wait_cmd(dev, lp, 100, "close2 timed out");
-	spin_unlock_irqrestore(&lp->lock, flags);
-	DEB(DEB_STRUCT,i596_display_data(dev));
-	i596_cleanup_cmd(dev,lp);
-
-	disable_irq(dev->irq);
-
-	free_irq(dev->irq, dev);
-	remove_rx_bufs(dev);
-
-	return 0;
-}
-
-static struct net_device_stats *
- i596_get_stats(struct net_device *dev)
-{
-	struct i596_private *lp = dev->priv;
-
-	return &lp->stats;
-}
-
-/*
- *    Set or clear the multicast filter for this adaptor.
- */
-
-static void set_multicast_list(struct net_device *dev)
-{
-	struct i596_private *lp = dev->priv;
-	int config = 0, cnt;
-
-	DEB(DEB_MULTI, printk("%s: set multicast list, %d entries, promisc %s, allmulti %s\n",
-		dev->name, dev->mc_count, dev->flags & IFF_PROMISC ? "ON" : "OFF",
-		dev->flags & IFF_ALLMULTI ? "ON" : "OFF"));
-
-	if ((dev->flags & IFF_PROMISC) && !(lp->cf_cmd.i596_config[8] & 0x01)) {
-		lp->cf_cmd.i596_config[8] |= 0x01;
-		config = 1;
-	}
-	if (!(dev->flags & IFF_PROMISC) && (lp->cf_cmd.i596_config[8] & 0x01)) {
-		lp->cf_cmd.i596_config[8] &= ~0x01;
-		config = 1;
-	}
-	if ((dev->flags & IFF_ALLMULTI) && (lp->cf_cmd.i596_config[11] & 0x20)) {
-		lp->cf_cmd.i596_config[11] &= ~0x20;
-		config = 1;
-	}
-	if (!(dev->flags & IFF_ALLMULTI) && !(lp->cf_cmd.i596_config[11] & 0x20)) {
-		lp->cf_cmd.i596_config[11] |= 0x20;
-		config = 1;
-	}
-	if (config) {
-		if (lp->cf_cmd.cmd.command)
-			printk("%s: config change request already queued\n",
-			       dev->name);
-		else {
-			lp->cf_cmd.cmd.command = CmdConfigure;
-			CHECK_WBACK_INV(lp, &lp->cf_cmd, sizeof(struct cf_cmd));
-			i596_add_cmd(dev, &lp->cf_cmd.cmd);
-		}
-	}
-
-	cnt = dev->mc_count;
-	if (cnt > MAX_MC_CNT)
-	{
-		cnt = MAX_MC_CNT;
-		printk("%s: Only %d multicast addresses supported",
-			dev->name, cnt);
-	}
-
-	if (dev->mc_count > 0) {
-		struct dev_mc_list *dmi;
-		unsigned char *cp;
-		struct mc_cmd *cmd;
-
-		cmd = &lp->mc_cmd;
-		cmd->cmd.command = CmdMulticastList;
-		cmd->mc_cnt = dev->mc_count * 6;
-		cp = cmd->mc_addrs;
-		for (dmi = dev->mc_list; cnt && dmi != NULL; dmi = dmi->next, cnt--, cp += 6) {
-			memcpy(cp, dmi->dmi_addr, 6);
-			if (i596_debug > 1)
-				DEB(DEB_MULTI, printk("%s: Adding address %02x:%02x:%02x:%02x:%02x:%02x\n",
-						dev->name, cp[0],cp[1],cp[2],cp[3],cp[4],cp[5]));
-		}
-		CHECK_WBACK_INV(lp, &lp->mc_cmd, sizeof(struct mc_cmd));
-		i596_add_cmd(dev, &cmd->cmd);
-	}
-}
-
-static int debug = -1;
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug, "lasi_82596 debug mask");
-
-static int num_drivers;
-static struct net_device *netdevs[MAX_DRIVERS];
-
 static int __devinit
 lan_init_chip(struct parisc_device *dev)
 {
 	struct	net_device *netdevice;
 	int	retval;
+	static int init = 0;
+	int i;
 
-	if (num_drivers >= MAX_DRIVERS) {
-		/* max count of possible i82596 drivers reached */
-		return -ENOMEM;
-	}
-
-	if (num_drivers == 0)
+	if (init == 0) {
 		printk(KERN_INFO LASI_82596_DRIVER_VERSION "\n");
+		init++;
+	}
 
 	if (!dev->irq) {
 		printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n",
@@ -1532,25 +180,39 @@ lan_init_chip(struct parisc_device *dev)
 	netdevice = alloc_etherdev(0);
 	if (!netdevice)
 		return -ENOMEM;
+	parisc_set_drvdata (dev, netdevice);
 
 	netdevice->base_addr = dev->hpa.start;
 	netdevice->irq = dev->irq;
 
-	retval = i82596_probe(netdevice, &dev->dev);
+	if (pdc_lan_station_id(netdevice->dev_addr, netdevice->base_addr)) {
+		for (i=0; i < 6; i++) {
+			netdevice->dev_addr[i] = gsc_readb(LAN_PROM_ADDR + i);
+		}
+		printk(KERN_INFO "%s: MAC of HP700 LAN read from EEPROM\n", __FILE__);
+	}
+
+
+	retval = i82596_probe(netdevice, &dev->dev, NULL, 
+			      dev->id.sversion == 0x72 ? OPT_SWAP_PORT : 0);
 	if (retval) {
 		free_netdev(netdevice);
 		return -ENODEV;
 	}
-
-	if (dev->id.sversion == 0x72) {
-		((struct i596_private *)netdevice->priv)->options = OPT_SWAP_PORT;
-	}
-
-	netdevs[num_drivers++] = netdevice;
-
 	return retval;
 }
 
+static int __devexit lan_remove_chip (struct parisc_device *pdev)
+{
+        struct net_device *dev = parisc_get_drvdata(pdev);
+        struct i596_private *lp = dev->priv;
+
+        unregister_netdev (dev);
+        dma_free_noncoherent(lp->dev, sizeof(struct i596_private),
+                             (void *)dev->mem_start, lp->dma_addr);
+        free_netdev (dev);
+        return 0;
+}
 
 static struct parisc_device_id lan_tbl[] = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008a },
@@ -1564,12 +226,11 @@ static struct parisc_driver lan_driver = {
 	.name		= "lasi_82596",
 	.id_table	= lan_tbl,
 	.probe		= lan_init_chip,
+	.remove         = __devexit_p(lan_remove_chip),
 };
 
 static int __devinit lasi_82596_init(void)
 {
-	if (debug >= 0)
-		i596_debug = debug;
 	return register_parisc_driver(&lan_driver);
 }
 
@@ -1577,25 +238,6 @@ module_init(lasi_82596_init);
 
 static void __exit lasi_82596_exit(void)
 {
-	int i;
-
-	for (i=0; i<MAX_DRIVERS; i++) {
-		struct i596_private *lp;
-		struct net_device *netdevice;
-
-		netdevice = netdevs[i];
-		if (!netdevice)
-			continue;
-
-		unregister_netdev(netdevice);
-
-		lp = netdevice->priv;
-		dma_free_noncoherent(lp->dev, sizeof(struct i596_private),
-				       (void *)netdevice->mem_start, lp->dma_addr);
-		free_netdev(netdevice);
-	}
-	num_drivers = 0;
-
 	unregister_parisc_driver(&lan_driver);
 }
 
diff --git a/drivers/net/lib82596.c b/drivers/net/lib82596.c
new file mode 100644
index 0000000..9be117d
--- /dev/null
+++ b/drivers/net/lib82596.c
@@ -0,0 +1,1353 @@
+/* lasi_82596.c -- driver for the intel 82596 ethernet controller, as
+   munged into HPPA boxen .
+
+   This driver is based upon 82596.c, original credits are below...
+   but there were too many hoops which HP wants jumped through to
+   keep this code in there in a sane manner.
+
+   3 primary sources of the mess -- 
+   1) hppa needs *lots* of cacheline flushing to keep this kind of
+   MMIO running.
+
+   2) The 82596 needs to see all of its pointers as their physical
+   address.  Thus virt_to_bus/bus_to_virt are *everywhere*.
+
+   3) The implementation HP is using seems to be significantly pickier 
+   about when and how the command and RX units are started.  some
+   command ordering was changed.
+
+   Examination of the mach driver leads one to believe that there
+   might be a saner way to pull this off...  anyone who feels like a
+   full rewrite can be my guest.
+
+   Split 02/13/2000 Sam Creasey (sammy@oh.verio.com)
+   
+   02/01/2000  Initial modifications for parisc by Helge Deller (deller@gmx.de)
+   03/02/2000  changes for better/correct(?) cache-flushing (deller)
+*/
+
+/* 82596.c: A generic 82596 ethernet driver for linux. */
+/*
+   Based on Apricot.c
+   Written 1994 by Mark Evans.
+   This driver is for the Apricot 82596 bus-master interface
+
+   Modularised 12/94 Mark Evans
+
+
+   Modified to support the 82596 ethernet chips on 680x0 VME boards.
+   by Richard Hirst <richard@sleepie.demon.co.uk>
+   Renamed to be 82596.c
+
+   980825:  Changed to receive directly in to sk_buffs which are
+   allocated at open() time.  Eliminates copy on incoming frames
+   (small ones are still copied).  Shared data now held in a
+   non-cached page, so we can run on 68060 in copyback mode.
+
+   TBD:
+   * look at deferring rx frames rather than discarding (as per tulip)
+   * handle tx ring full as per tulip
+   * performace test to tune rx_copybreak
+
+   Most of my modifications relate to the braindead big-endian
+   implementation by Intel.  When the i596 is operating in
+   'big-endian' mode, it thinks a 32 bit value of 0x12345678
+   should be stored as 0x56781234.  This is a real pain, when
+   you have linked lists which are shared by the 680x0 and the
+   i596.
+
+   Driver skeleton
+   Written 1993 by Donald Becker.
+   Copyright 1993 United States Government as represented by the Director,
+   National Security Agency. This software may only be used and distributed
+   according to the terms of the GNU General Public License as modified by SRC,
+   incorporated herein by reference.
+
+   The author may be reached as becker@scyld.com, or C/O
+   Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403
+
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/irq.h>
+#include <asm/cache.h>
+
+/* DEBUG flags
+ */
+
+#define DEB_INIT	0x0001
+#define DEB_PROBE	0x0002
+#define DEB_SERIOUS	0x0004
+#define DEB_ERRORS	0x0008
+#define DEB_MULTI	0x0010
+#define DEB_TDR		0x0020
+#define DEB_OPEN	0x0040
+#define DEB_RESET	0x0080
+#define DEB_ADDCMD	0x0100
+#define DEB_STATUS	0x0200
+#define DEB_STARTTX	0x0400
+#define DEB_RXADDR	0x0800
+#define DEB_TXADDR	0x1000
+#define DEB_RXFRAME	0x2000
+#define DEB_INTS	0x4000
+#define DEB_STRUCT	0x8000
+#define DEB_ANY		0xffff
+
+
+#define DEB(x,y)	if (i596_debug & (x)) { y; }
+
+#define ISCP_BUSY	0x0001
+
+/*
+ * The MPU_PORT command allows direct access to the 82596. With PORT access
+ * the following commands are available (p5-18). The 32-bit port command
+ * must be word-swapped with the most significant word written first.
+ * This only applies to VME boards.
+ */
+#define PORT_RESET		0x00	/* reset 82596 */
+#define PORT_SELFTEST		0x01	/* selftest */
+#define PORT_ALTSCP		0x02	/* alternate SCB address */
+#define PORT_ALTDUMP		0x03	/* Alternate DUMP address */
+
+static int i596_debug = (DEB_SERIOUS|DEB_PROBE);
+
+/* Copy frames shorter than rx_copybreak, otherwise pass on up in
+ * a full sized sk_buff.  Value of 100 stolen from tulip.c (!alpha).
+ */
+static int rx_copybreak = 100;
+
+#define PKT_BUF_SZ	1536
+#define MAX_MC_CNT	64
+
+#define I596_NULL ((u32)0xffffffff)
+
+#define CMD_EOL		0x8000	/* The last command of the list, stop. */
+#define CMD_SUSP	0x4000	/* Suspend after doing cmd. */
+#define CMD_INTR	0x2000	/* Interrupt after doing cmd. */
+
+#define CMD_FLEX	0x0008	/* Enable flexible memory model */
+
+enum commands {
+	CmdNOp = 0, CmdSASetup = 1, CmdConfigure = 2, CmdMulticastList = 3,
+	CmdTx = 4, CmdTDR = 5, CmdDump = 6, CmdDiagnose = 7
+};
+
+#define STAT_C		0x8000	/* Set to 0 after execution */
+#define STAT_B		0x4000	/* Command being executed */
+#define STAT_OK		0x2000	/* Command executed ok */
+#define STAT_A		0x1000	/* Command aborted */
+
+#define	 CUC_START	0x0100
+#define	 CUC_RESUME	0x0200
+#define	 CUC_SUSPEND    0x0300
+#define	 CUC_ABORT	0x0400
+#define	 RX_START	0x0010
+#define	 RX_RESUME	0x0020
+#define	 RX_SUSPEND	0x0030
+#define	 RX_ABORT	0x0040
+
+#define TX_TIMEOUT	5
+
+
+struct i596_reg {
+	unsigned short porthi;
+	unsigned short portlo;
+	u32            ca;
+};
+
+#define EOF		0x8000
+#define SIZE_MASK	0x3fff
+
+struct i596_tbd {
+	unsigned short size;
+	unsigned short pad;
+	dma_addr_t     next;
+	dma_addr_t     data;
+	u32 cache_pad[5];		/* Total 32 bytes... */
+};
+
+/* The command structure has two 'next' pointers; v_next is the address of
+ * the next command as seen by the CPU, b_next is the address of the next
+ * command as seen by the 82596.  The b_next pointer, as used by the 82596
+ * always references the status field of the next command, rather than the
+ * v_next field, because the 82596 is unaware of v_next.  It may seem more
+ * logical to put v_next at the end of the structure, but we cannot do that
+ * because the 82596 expects other fields to be there, depending on command
+ * type.
+ */
+
+struct i596_cmd {
+	struct i596_cmd *v_next;	/* Address from CPUs viewpoint */
+	unsigned short status;
+	unsigned short command;
+	dma_addr_t     b_next;	/* Address from i596 viewpoint */
+};
+
+struct tx_cmd {
+	struct i596_cmd cmd;
+	dma_addr_t     tbd;
+	unsigned short size;
+	unsigned short pad;
+	struct sk_buff *skb;		/* So we can free it after tx */
+	dma_addr_t dma_addr;
+#ifdef __LP64__
+	u32 cache_pad[6];		/* Total 64 bytes... */
+#else    
+	u32 cache_pad[1];		/* Total 32 bytes... */
+#endif    
+};
+
+struct tdr_cmd {
+	struct i596_cmd cmd;
+	unsigned short pad;
+	unsigned short status;   // FIXME u32, swap
+};
+
+struct mc_cmd {
+	struct i596_cmd cmd;
+	short mc_cnt;
+	char mc_addrs[MAX_MC_CNT*6];
+};
+
+struct sa_cmd {
+	struct i596_cmd cmd;
+	char eth_addr[8];
+};
+
+struct cf_cmd {
+	struct i596_cmd cmd;
+	char i596_config[16];
+};
+
+struct i596_rfd {
+	unsigned short stat;
+	unsigned short cmd;
+	dma_addr_t     b_next;	/* Address from i596 viewpoint */
+	dma_addr_t     rbd;
+	unsigned short count;
+	unsigned short size;
+	struct i596_rfd *v_next;	/* Address from CPUs viewpoint */
+	struct i596_rfd *v_prev;
+#ifndef __LP64__    
+	u32 cache_pad[2];		/* Total 32 bytes... */
+#endif    
+};
+
+struct i596_rbd {
+    /* hardware data */
+    unsigned short count;
+    unsigned short zero1;
+    dma_addr_t     b_next;
+    dma_addr_t     b_data;		/* Address from i596 viewpoint */
+    unsigned short size;
+    unsigned short zero2;
+    /* driver data */
+    struct sk_buff *skb;
+    struct i596_rbd *v_next;
+    dma_addr_t     b_addr;		/* This rbd addr from i596 view */
+    unsigned char *v_data;		/* Address from CPUs viewpoint */
+					/* Total 32 bytes... */
+#ifdef __LP64__
+    u32 cache_pad[4];
+#endif    
+};
+
+/* These values as chosen so struct i596_private fits in one page... */
+
+#define TX_RING_SIZE 32
+#define RX_RING_SIZE 16
+
+struct i596_scb {
+	unsigned short status;
+	unsigned short command;
+	dma_addr_t    cmd;
+	dma_addr_t    rfd;
+	u32           crc_err;
+	u32           align_err;
+	u32           resource_err;
+	u32           over_err;
+	u32           rcvdt_err;
+	u32           short_err;
+	unsigned short t_off;
+	unsigned short t_on;
+};
+
+struct i596_iscp {
+	u32           stat;
+	dma_addr_t    scb;
+};
+
+struct i596_scp {
+	u32           sysbus;
+	u32            pad;
+	dma_addr_t    iscp;
+};
+
+struct i596_private {
+	volatile struct i596_scp scp		__attribute__((aligned(32)));
+	volatile struct i596_iscp iscp		__attribute__((aligned(32)));
+	volatile struct i596_scb scb		__attribute__((aligned(32)));
+	struct sa_cmd sa_cmd			__attribute__((aligned(32)));
+	struct cf_cmd cf_cmd			__attribute__((aligned(32)));
+	struct tdr_cmd tdr_cmd			__attribute__((aligned(32)));
+	struct mc_cmd mc_cmd			__attribute__((aligned(32)));
+	struct i596_rfd rfds[RX_RING_SIZE]	__attribute__((aligned(32)));
+	struct i596_rbd rbds[RX_RING_SIZE]	__attribute__((aligned(32)));
+	struct tx_cmd tx_cmds[TX_RING_SIZE]	__attribute__((aligned(32)));
+	struct i596_tbd tbds[TX_RING_SIZE]	__attribute__((aligned(32)));
+	u32    stat;
+	int last_restart;
+	struct i596_rfd *rfd_head;
+	struct i596_rbd *rbd_head;
+	struct i596_cmd *cmd_tail;
+	struct i596_cmd *cmd_head;
+	int cmd_backlog;
+	u32    last_cmd;
+	struct net_device_stats stats;
+	int next_tx_cmd;
+	int options;
+	spinlock_t lock;
+	dma_addr_t dma_addr;
+	struct device *dev;
+	volatile u32 *ca;
+};
+
+static const char init_setup[] =
+{
+	0x8E,			/* length, prefetch on */
+	0xC8,			/* fifo to 8, monitor off */
+	0x80,			/* don't save bad frames */
+	0x2E,			/* No source address insertion, 8 byte preamble */
+	0x00,			/* priority and backoff defaults */
+	0x60,			/* interframe spacing */
+	0x00,			/* slot time LSB */
+	0xf2,			/* slot time and retries */
+	0x00,			/* promiscuous mode */
+	0x00,			/* collision detect */
+	0x40,			/* minimum frame length */
+	0xff,
+	0x00,
+	0x7f /*  *multi IA */ };
+
+static int i596_open(struct net_device *dev);
+static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t i596_interrupt(int irq, void *dev_id);
+static int i596_close(struct net_device *dev);
+static struct net_device_stats *i596_get_stats(struct net_device *dev);
+static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd);
+static void i596_tx_timeout (struct net_device *dev);
+static void print_eth(unsigned char *buf, char *str);
+static void set_multicast_list(struct net_device *dev);
+
+static int rx_ring_size = RX_RING_SIZE;
+static int ticks_limit = 100;
+static int max_cmd_backlog = TX_RING_SIZE-1;
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void i596_poll_controller(struct net_device *dev);
+#endif
+
+
+static inline int wait_istat(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
+{
+	CHECK_INV(lp, &(lp->iscp), sizeof(struct i596_iscp));
+	while (--delcnt && lp->iscp.stat) {
+		udelay(10);
+		CHECK_INV(lp, &(lp->iscp), sizeof(struct i596_iscp));
+	}
+	if (!delcnt) {
+		printk("%s: %s, iscp.stat %04x, didn't clear\n",
+		     dev->name, str, lp->iscp.stat);
+		return -1;
+	}
+	else
+		return 0;
+}
+
+
+static inline int wait_cmd(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
+{
+	CHECK_INV(lp, &(lp->scb), sizeof(struct i596_scb));
+	while (--delcnt && lp->scb.command) {
+		udelay(10);
+		CHECK_INV(lp, &(lp->scb), sizeof(struct i596_scb));
+	}
+	if (!delcnt) {
+		printk("%s: %s, status %4.4x, cmd %4.4x.\n",
+		     dev->name, str, lp->scb.status, lp->scb.command);
+		return -1;
+	}
+	else
+		return 0;
+}
+
+
+static void i596_display_data(struct net_device *dev)
+{
+	struct i596_private *lp = dev->priv;
+	struct i596_cmd *cmd;
+	struct i596_rfd *rfd;
+	struct i596_rbd *rbd;
+
+	printk("lp and scp at %p, .sysbus = %08x, .iscp = %08x\n",
+	       &lp->scp, lp->scp.sysbus, lp->scp.iscp);
+	printk("iscp at %p, iscp.stat = %08x, .scb = %08x\n",
+	       &lp->iscp, lp->iscp.stat, lp->iscp.scb);
+	printk("scb at %p, scb.status = %04x, .command = %04x,"
+		" .cmd = %08x, .rfd = %08x\n",
+	       &lp->scb, lp->scb.status, lp->scb.command,
+		lp->scb.cmd, lp->scb.rfd);
+	printk("   errors: crc %x, align %x, resource %x,"
+               " over %x, rcvdt %x, short %x\n",
+		lp->scb.crc_err, lp->scb.align_err, lp->scb.resource_err,
+		lp->scb.over_err, lp->scb.rcvdt_err, lp->scb.short_err);
+	cmd = lp->cmd_head;
+	while (cmd != NULL) {
+		printk("cmd at %p, .status = %04x, .command = %04x, .b_next = %08x\n",
+		  cmd, cmd->status, cmd->command, cmd->b_next);
+		cmd = cmd->v_next;
+	}
+	rfd = lp->rfd_head;
+	printk("rfd_head = %p\n", rfd);
+	do {
+		printk("   %p .stat %04x, .cmd %04x, b_next %08x, rbd %08x,"
+                        " count %04x\n",
+			rfd, rfd->stat, rfd->cmd, rfd->b_next, rfd->rbd,
+			rfd->count);
+		rfd = rfd->v_next;
+	} while (rfd != lp->rfd_head);
+	rbd = lp->rbd_head;
+	printk("rbd_head = %p\n", rbd);
+	do {
+		printk("   %p .count %04x, b_next %08x, b_data %08x, size %04x\n",
+			rbd, rbd->count, rbd->b_next, rbd->b_data, rbd->size);
+		rbd = rbd->v_next;
+	} while (rbd != lp->rbd_head);
+	CHECK_INV(lp, lp, sizeof(struct i596_private));
+}
+
+
+#define virt_to_dma(lp,v) ((lp)->dma_addr + (dma_addr_t)((unsigned long)(v)-(unsigned long)(lp)))
+
+static inline void init_rx_bufs(struct net_device *dev)
+{
+	struct i596_private *lp = dev->priv;
+	int i;
+	struct i596_rfd *rfd;
+	struct i596_rbd *rbd;
+
+	/* First build the Receive Buffer Descriptor List */
+
+	for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
+		dma_addr_t dma_addr;
+		struct sk_buff *skb = dev_alloc_skb(PKT_BUF_SZ + 4);
+
+		if (skb == NULL)
+			panic("%s: alloc_skb() failed", __FILE__);
+		skb_reserve(skb, 2);
+		dma_addr = dma_map_single(lp->dev, skb->data,PKT_BUF_SZ,
+					  DMA_FROM_DEVICE);
+		skb->dev = dev;
+		rbd->v_next = rbd+1;
+		rbd->b_next = SWAP32(virt_to_dma(lp,rbd+1));
+		rbd->b_addr = SWAP32(virt_to_dma(lp,rbd));
+		rbd->skb = skb;
+		rbd->v_data = skb->data;
+		rbd->b_data = SWAP32(dma_addr);
+		rbd->size = SWAP16(PKT_BUF_SZ);
+	}
+	lp->rbd_head = lp->rbds;
+	rbd = lp->rbds + rx_ring_size - 1;
+	rbd->v_next = lp->rbds;
+	rbd->b_next = SWAP32(virt_to_dma(lp,lp->rbds));
+
+	/* Now build the Receive Frame Descriptor List */
+
+	for (i = 0, rfd = lp->rfds; i < rx_ring_size; i++, rfd++) {
+		rfd->rbd = I596_NULL;
+		rfd->v_next = rfd+1;
+		rfd->v_prev = rfd-1;
+		rfd->b_next = SWAP32(virt_to_dma(lp,rfd+1));
+		rfd->cmd = SWAP16(CMD_FLEX);
+	}
+	lp->rfd_head = lp->rfds;
+	lp->scb.rfd = SWAP32(virt_to_dma(lp,lp->rfds));
+	rfd = lp->rfds;
+	rfd->rbd = SWAP32(virt_to_dma(lp,lp->rbd_head));
+	rfd->v_prev = lp->rfds + rx_ring_size - 1;
+	rfd = lp->rfds + rx_ring_size - 1;
+	rfd->v_next = lp->rfds;
+	rfd->b_next = SWAP32(virt_to_dma(lp,lp->rfds));
+	rfd->cmd = SWAP16(CMD_EOL|CMD_FLEX);
+
+	CHECK_WBACK_INV(lp, lp, sizeof(struct i596_private));
+}
+
+static inline void remove_rx_bufs(struct net_device *dev)
+{
+	struct i596_private *lp = dev->priv;
+	struct i596_rbd *rbd;
+	int i;
+
+	for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
+		if (rbd->skb == NULL)
+			break;
+		dma_unmap_single(lp->dev,
+				 (dma_addr_t)SWAP32(rbd->b_data), 
+				 PKT_BUF_SZ, DMA_FROM_DEVICE);
+		dev_kfree_skb(rbd->skb);
+	}
+}
+
+
+static void rebuild_rx_bufs(struct net_device *dev)
+{
+	struct i596_private *lp = dev->priv;
+	int i;
+
+	/* Ensure rx frame/buffer descriptors are tidy */
+
+	for (i = 0; i < rx_ring_size; i++) {
+		lp->rfds[i].rbd = I596_NULL;
+		lp->rfds[i].cmd = SWAP16(CMD_FLEX);
+	}
+	lp->rfds[rx_ring_size-1].cmd = SWAP16(CMD_EOL|CMD_FLEX);
+	lp->rfd_head = lp->rfds;
+	lp->scb.rfd = SWAP32(virt_to_dma(lp,lp->rfds));
+	lp->rbd_head = lp->rbds;
+	lp->rfds[0].rbd = SWAP32(virt_to_dma(lp,lp->rbds));
+
+	CHECK_WBACK_INV(lp, lp, sizeof(struct i596_private));
+}
+
+
+static int init_i596_mem(struct net_device *dev)
+{
+	struct i596_private *lp = dev->priv;
+	unsigned long flags;
+
+	MPU_PORT(dev, PORT_RESET, 0);
+	udelay(100);			/* Wait 100us - seems to help */
+
+	/* change the scp address */
+
+	lp->last_cmd = jiffies;
+
+
+	lp->scp.sysbus = SYSBUS;
+	lp->scp.iscp = SWAP32(virt_to_dma(lp,&(lp->iscp)));
+	lp->iscp.scb = SWAP32(virt_to_dma(lp,&(lp->scb)));
+	lp->iscp.stat = SWAP32(ISCP_BUSY);
+	lp->cmd_backlog = 0;
+
+	lp->cmd_head = NULL;
+        lp->scb.cmd = I596_NULL;
+
+	DEB(DEB_INIT, printk("%s: starting i82596.\n", dev->name));
+
+	CHECK_WBACK(lp, &(lp->scp), sizeof(struct i596_scp));
+	CHECK_WBACK(lp, &(lp->iscp), sizeof(struct i596_iscp));
+	CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
+
+	MPU_PORT(dev, PORT_ALTSCP, virt_to_dma(lp,&lp->scp));
+	CA(dev);
+	if (wait_istat(dev, lp, 1000, "initialization timed out"))
+		goto failed;
+	DEB(DEB_INIT, printk("%s: i82596 initialization successful\n", dev->name));
+
+	if (request_irq(dev->irq, &i596_interrupt, 0, "i82596", dev)) {
+		printk("%s: IRQ %d not free\n", dev->name, dev->irq);
+		goto failed;
+	}
+
+	/* Ensure rx frame/buffer descriptors are tidy */
+	rebuild_rx_bufs(dev);
+
+	lp->scb.command = 0;
+	CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
+
+#if 1
+	DEB(DEB_INIT, printk("%s: queuing CmdConfigure\n", dev->name));
+	memcpy(lp->cf_cmd.i596_config, init_setup, 14);
+	lp->cf_cmd.cmd.command = SWAP16(CmdConfigure);
+	CHECK_WBACK(lp, &(lp->cf_cmd), sizeof(struct cf_cmd));
+	i596_add_cmd(dev, &lp->cf_cmd.cmd);
+	
+	DEB(DEB_INIT, printk("%s: queuing CmdSASetup\n", dev->name));
+	memcpy(lp->sa_cmd.eth_addr, dev->dev_addr, 6);
+	lp->sa_cmd.cmd.command = SWAP16(CmdSASetup);
+	CHECK_WBACK(lp, &(lp->sa_cmd), sizeof(struct sa_cmd));
+	i596_add_cmd(dev, &lp->sa_cmd.cmd);
+
+	DEB(DEB_INIT, printk("%s: queuing CmdTDR\n", dev->name));
+	lp->tdr_cmd.cmd.command = SWAP16(CmdTDR);
+	CHECK_WBACK(lp, &(lp->tdr_cmd), sizeof(struct tdr_cmd));
+	i596_add_cmd(dev, &lp->tdr_cmd.cmd);
+#endif
+	spin_lock_irqsave (&lp->lock, flags);
+
+	if (wait_cmd(dev, lp, 1000, "timed out waiting to issue RX_START")) {
+		spin_unlock_irqrestore (&lp->lock, flags);
+		goto failed;
+	}
+	DEB(DEB_INIT, printk("%s: Issuing RX_START\n", dev->name));
+	lp->scb.command = SWAP16(RX_START);
+	lp->scb.rfd = SWAP32(virt_to_dma(lp,lp->rfds));
+	CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
+
+	CA(dev);
+
+	spin_unlock_irqrestore (&lp->lock, flags);
+	if (wait_cmd(dev, lp, 1000, "RX_START not processed"))
+		goto failed;
+	DEB(DEB_INIT, printk("%s: Receive unit started OK\n", dev->name));
+	return 0;
+
+failed:
+	printk("%s: Failed to initialise 82596\n", dev->name);
+	MPU_PORT(dev, PORT_RESET, 0);
+	return -1;
+}
+
+
+static inline int i596_rx(struct net_device *dev)
+{
+	struct i596_private *lp = dev->priv;
+	struct i596_rfd *rfd;
+	struct i596_rbd *rbd;
+	int frames = 0;
+
+	DEB(DEB_RXFRAME, printk("i596_rx(), rfd_head %p, rbd_head %p\n",
+			lp->rfd_head, lp->rbd_head));
+
+
+	rfd = lp->rfd_head;		/* Ref next frame to check */
+
+	CHECK_INV(lp, rfd, sizeof(struct i596_rfd));
+	while (rfd->stat & SWAP16(STAT_C)) {	/* Loop while complete frames */
+		if (rfd->rbd == I596_NULL)
+			rbd = NULL;
+		else if (rfd->rbd == lp->rbd_head->b_addr) {
+			rbd = lp->rbd_head;
+			CHECK_INV(lp, rbd, sizeof(struct i596_rbd));
+		}
+		else {
+			printk("%s: rbd chain broken!\n", dev->name);
+			/* XXX Now what? */
+			rbd = NULL;
+		}
+		DEB(DEB_RXFRAME, printk("  rfd %p, rfd.rbd %08x, rfd.stat %04x\n",
+			rfd, rfd->rbd, rfd->stat));
+		
+		if (rbd != NULL && (rfd->stat & SWAP16(STAT_OK))) {
+			/* a good frame */
+			int pkt_len = SWAP16(rbd->count) & 0x3fff;
+			struct sk_buff *skb = rbd->skb;
+			int rx_in_place = 0;
+
+			DEB(DEB_RXADDR,print_eth(rbd->v_data, "received"));
+			frames++;
+
+			/* Check if the packet is long enough to just accept
+			 * without copying to a properly sized skbuff.
+			 */
+
+			if (pkt_len > rx_copybreak) {
+				struct sk_buff *newskb;
+				dma_addr_t dma_addr;
+
+				dma_unmap_single(lp->dev,(dma_addr_t)SWAP32(rbd->b_data), 
+						 PKT_BUF_SZ, DMA_FROM_DEVICE);
+				/* Get fresh skbuff to replace filled one. */
+				newskb = dev_alloc_skb(PKT_BUF_SZ + 4);
+				if (newskb == NULL) {
+					skb = NULL;	/* drop pkt */
+					goto memory_squeeze;
+				}
+				skb_reserve(newskb, 2);
+
+				/* Pass up the skb already on the Rx ring. */
+				skb_put(skb, pkt_len);
+				rx_in_place = 1;
+				rbd->skb = newskb;
+				newskb->dev = dev;
+				dma_addr = dma_map_single(lp->dev, newskb->data, 
+							  PKT_BUF_SZ, DMA_FROM_DEVICE);
+				rbd->v_data = newskb->data;
+				rbd->b_data = SWAP32(dma_addr);
+				CHECK_WBACK_INV(lp, rbd, sizeof(struct i596_rbd));
+			}
+			else
+				skb = dev_alloc_skb(pkt_len + 2);
+memory_squeeze:
+			if (skb == NULL) {
+				/* XXX tulip.c can defer packets here!! */
+				printk("%s: i596_rx Memory squeeze, dropping packet.\n", dev->name);
+				lp->stats.rx_dropped++;
+			}
+			else {
+				skb->dev = dev;
+				if (!rx_in_place) {
+					/* 16 byte align the data fields */
+					dma_sync_single_for_cpu(lp->dev, (dma_addr_t)SWAP32(rbd->b_data), PKT_BUF_SZ, DMA_FROM_DEVICE);
+					skb_reserve(skb, 2);
+					memcpy(skb_put(skb,pkt_len), rbd->v_data, pkt_len);
+					dma_sync_single_for_device(lp->dev, (dma_addr_t)SWAP32(rbd->b_data), PKT_BUF_SZ, DMA_FROM_DEVICE);
+				}
+				skb->len = pkt_len;
+				skb->protocol=eth_type_trans(skb,dev);
+				netif_rx(skb);
+				dev->last_rx = jiffies;
+				lp->stats.rx_packets++;
+				lp->stats.rx_bytes+=pkt_len;
+			}
+		}
+		else {
+			DEB(DEB_ERRORS, printk("%s: Error, rfd.stat = 0x%04x\n",
+					dev->name, rfd->stat));
+			lp->stats.rx_errors++;
+			if (rfd->stat & SWAP16(0x0100))
+				lp->stats.collisions++;
+			if (rfd->stat & SWAP16(0x8000))
+				lp->stats.rx_length_errors++;
+			if (rfd->stat & SWAP16(0x0001))
+				lp->stats.rx_over_errors++;
+			if (rfd->stat & SWAP16(0x0002))
+				lp->stats.rx_fifo_errors++;
+			if (rfd->stat & SWAP16(0x0004))
+				lp->stats.rx_frame_errors++;
+			if (rfd->stat & SWAP16(0x0008))
+				lp->stats.rx_crc_errors++;
+			if (rfd->stat & SWAP16(0x0010))
+				lp->stats.rx_length_errors++;
+		}
+
+		/* Clear the buffer descriptor count and EOF + F flags */
+
+		if (rbd != NULL && (rbd->count & SWAP16(0x4000))) {
+			rbd->count = 0;
+			lp->rbd_head = rbd->v_next;
+			CHECK_WBACK_INV(lp, rbd, sizeof(struct i596_rbd));
+		}
+
+		/* Tidy the frame descriptor, marking it as end of list */
+
+		rfd->rbd = I596_NULL;
+		rfd->stat = 0;
+		rfd->cmd = SWAP16(CMD_EOL|CMD_FLEX);
+		rfd->count = 0;
+
+		/* Remove end-of-list from old end descriptor */
+
+		rfd->v_prev->cmd = SWAP16(CMD_FLEX);
+
+		/* Update record of next frame descriptor to process */
+
+		lp->scb.rfd = rfd->b_next;
+		lp->rfd_head = rfd->v_next;
+		CHECK_WBACK_INV(lp, rfd->v_prev, sizeof(struct i596_rfd));
+		CHECK_WBACK_INV(lp, rfd, sizeof(struct i596_rfd));
+		rfd = lp->rfd_head;
+		CHECK_INV(lp, rfd, sizeof(struct i596_rfd));
+	}
+
+	DEB(DEB_RXFRAME, printk("frames %d\n", frames));
+
+	return 0;
+}
+
+
+static inline void i596_cleanup_cmd(struct net_device *dev, struct i596_private *lp)
+{
+	struct i596_cmd *ptr;
+
+	while (lp->cmd_head != NULL) {
+		ptr = lp->cmd_head;
+		lp->cmd_head = ptr->v_next;
+		lp->cmd_backlog--;
+
+		switch (SWAP16(ptr->command) & 0x7) {
+		case CmdTx:
+			{
+				struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
+				struct sk_buff *skb = tx_cmd->skb;
+				dma_unmap_single(lp->dev, tx_cmd->dma_addr, skb->len, DMA_TO_DEVICE);
+
+				dev_kfree_skb(skb);
+
+				lp->stats.tx_errors++;
+				lp->stats.tx_aborted_errors++;
+
+				ptr->v_next = NULL;
+				ptr->b_next = I596_NULL;
+				tx_cmd->cmd.command = 0;  /* Mark as free */
+				break;
+			}
+		default:
+			ptr->v_next = NULL;
+			ptr->b_next = I596_NULL;
+		}
+		CHECK_WBACK_INV(lp, ptr, sizeof(struct i596_cmd));
+	}
+
+	wait_cmd(dev, lp, 100, "i596_cleanup_cmd timed out");
+	lp->scb.cmd = I596_NULL;
+	CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
+}
+
+
+static inline void i596_reset(struct net_device *dev, struct i596_private *lp)
+{
+	unsigned long flags;
+
+	DEB(DEB_RESET, printk("i596_reset\n"));
+
+	spin_lock_irqsave (&lp->lock, flags);
+
+	wait_cmd(dev, lp, 100, "i596_reset timed out");
+
+	netif_stop_queue(dev);
+
+	/* FIXME: this command might cause an lpmc */
+	lp->scb.command = SWAP16(CUC_ABORT | RX_ABORT);
+	CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
+	CA(dev);
+
+	/* wait for shutdown */
+	wait_cmd(dev, lp, 1000, "i596_reset 2 timed out");
+	spin_unlock_irqrestore (&lp->lock, flags);
+
+	i596_cleanup_cmd(dev,lp);
+	i596_rx(dev);
+
+	netif_start_queue(dev);
+	init_i596_mem(dev);
+}
+
+
+static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd)
+{
+	struct i596_private *lp = dev->priv;
+	unsigned long flags;
+
+	DEB(DEB_ADDCMD, printk("i596_add_cmd cmd_head %p\n", lp->cmd_head));
+
+	cmd->status = 0;
+	cmd->command |= SWAP16(CMD_EOL | CMD_INTR);
+	cmd->v_next = NULL;
+	cmd->b_next = I596_NULL;
+	CHECK_WBACK(lp, cmd, sizeof(struct i596_cmd));
+
+	spin_lock_irqsave (&lp->lock, flags);
+
+	if (lp->cmd_head != NULL) {
+		lp->cmd_tail->v_next = cmd;
+		lp->cmd_tail->b_next = SWAP32(virt_to_dma(lp,&cmd->status));
+		CHECK_WBACK(lp, lp->cmd_tail, sizeof(struct i596_cmd));
+	} else {
+		lp->cmd_head = cmd;
+		wait_cmd(dev, lp, 100, "i596_add_cmd timed out");
+		lp->scb.cmd = SWAP32(virt_to_dma(lp,&cmd->status));
+		lp->scb.command = SWAP16(CUC_START);
+		CHECK_WBACK(lp, &(lp->scb), sizeof(struct i596_scb));
+		CA(dev);
+	}
+	lp->cmd_tail = cmd;
+	lp->cmd_backlog++;
+
+	spin_unlock_irqrestore (&lp->lock, flags);
+
+	if (lp->cmd_backlog > max_cmd_backlog) {
+		unsigned long tickssofar = jiffies - lp->last_cmd;
+
+		if (tickssofar < ticks_limit)
+			return;
+
+		printk("%s: command unit timed out, status resetting.\n", dev->name);
+#if 1
+		i596_reset(dev, lp);
+#endif
+	}
+}
+
+static int i596_open(struct net_device *dev)
+{
+	DEB(DEB_OPEN, printk("%s: i596_open() irq %d.\n", dev->name, dev->irq));
+
+	init_rx_bufs(dev);
+
+	if (init_i596_mem(dev)) {
+		printk("%s: Failed to init memory\n", dev->name);
+		goto out_remove_rx_bufs;
+	}
+	netif_start_queue(dev);
+
+	return 0;
+
+out_remove_rx_bufs:
+	remove_rx_bufs(dev);
+	free_irq(dev->irq, dev);
+	return -EAGAIN;
+}
+
+static void i596_tx_timeout (struct net_device *dev)
+{
+	struct i596_private *lp = dev->priv;
+
+	/* Transmitter timeout, serious problems. */
+	DEB(DEB_ERRORS, printk("%s: transmit timed out, status resetting.\n",
+			dev->name));
+
+	lp->stats.tx_errors++;
+
+	/* Try to restart the adaptor */
+	if (lp->last_restart == lp->stats.tx_packets) {
+		DEB(DEB_ERRORS, printk("Resetting board.\n"));
+		/* Shutdown and restart */
+		i596_reset (dev, lp);
+	} else {
+		/* Issue a channel attention signal */
+		DEB(DEB_ERRORS, printk("Kicking board.\n"));
+		lp->scb.command = SWAP16(CUC_START | RX_START);
+		CHECK_WBACK_INV(lp, &(lp->scb), sizeof(struct i596_scb));
+		CA (dev);
+		lp->last_restart = lp->stats.tx_packets;
+	}
+
+	dev->trans_start = jiffies;
+	netif_wake_queue (dev);
+}
+
+
+static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct i596_private *lp = dev->priv;
+	struct tx_cmd *tx_cmd;
+	struct i596_tbd *tbd;
+	short length = skb->len;
+	dev->trans_start = jiffies;
+
+	DEB(DEB_STARTTX, printk("%s: i596_start_xmit(%x,%p) called\n", dev->name,
+				skb->len, skb->data));
+
+	if (length < ETH_ZLEN) {
+		if (skb_padto(skb, ETH_ZLEN))
+			return 0;
+		length = ETH_ZLEN;
+	}
+	
+	netif_stop_queue(dev);
+
+	tx_cmd = lp->tx_cmds + lp->next_tx_cmd;
+	tbd = lp->tbds + lp->next_tx_cmd;
+
+	if (tx_cmd->cmd.command) {
+		DEB(DEB_ERRORS, printk("%s: xmit ring full, dropping packet.\n",
+				dev->name));
+		lp->stats.tx_dropped++;
+
+		dev_kfree_skb(skb);
+	} else {
+		if (++lp->next_tx_cmd == TX_RING_SIZE)
+			lp->next_tx_cmd = 0;
+		tx_cmd->tbd = SWAP32(virt_to_dma(lp,tbd));
+		tbd->next = I596_NULL;
+
+		tx_cmd->cmd.command = SWAP16(CMD_FLEX | CmdTx);
+		tx_cmd->skb = skb;
+
+		tx_cmd->pad = 0;
+		tx_cmd->size = 0;
+		tbd->pad = 0;
+		tbd->size = SWAP16(EOF | length);
+
+		tx_cmd->dma_addr = dma_map_single(lp->dev, skb->data, skb->len,
+				DMA_TO_DEVICE);
+		tbd->data = SWAP32(tx_cmd->dma_addr);
+
+		DEB(DEB_TXADDR,print_eth(skb->data, "tx-queued"));
+		CHECK_WBACK_INV(lp, tx_cmd, sizeof(struct tx_cmd));
+		CHECK_WBACK_INV(lp, tbd, sizeof(struct i596_tbd));
+		i596_add_cmd(dev, &tx_cmd->cmd);
+
+		lp->stats.tx_packets++;
+		lp->stats.tx_bytes += length;
+	}
+
+	netif_start_queue(dev);
+
+	return 0;
+}
+
+static void print_eth(unsigned char *add, char *str)
+{
+	int i;
+
+	printk("i596 0x%p, ", add);
+	for (i = 0; i < 6; i++)
+		printk(" %02X", add[i + 6]);
+	printk(" -->");
+	for (i = 0; i < 6; i++)
+		printk(" %02X", add[i]);
+	printk(" %02X%02X, %s\n", add[12], add[13], str);
+}
+
+static int __devinit i82596_probe(struct net_device *dev, struct device *gen_dev,
+				  volatile u32 *ca, u32 options)
+{
+	int i;
+	struct i596_private *lp;
+	dma_addr_t dma_addr;
+
+	/* This lot is ensure things have been cache line aligned. */
+	BUILD_BUG_ON(sizeof(struct i596_rfd) != 32);
+	BUILD_BUG_ON(sizeof(struct i596_rbd) &  31);
+	BUILD_BUG_ON(sizeof(struct tx_cmd)   &  31);
+	BUILD_BUG_ON(sizeof(struct i596_tbd) != 32);
+#ifndef __LP64__
+	BUILD_BUG_ON(sizeof(struct i596_private) > 4096);
+#endif
+	
+	if (!dev->base_addr || !dev->irq)
+		return -ENODEV;
+
+	dev->mem_start = (unsigned long) dma_alloc_noncoherent(gen_dev,
+		sizeof(struct i596_private), &dma_addr, GFP_KERNEL);
+	if (!dev->mem_start) {
+		printk(KERN_ERR "%s: Couldn't get shared memory\n", __FILE__);
+		return -ENOMEM;
+	}
+
+	/* The 82596-specific entries in the device structure. */
+	dev->open = i596_open;
+	dev->stop = i596_close;
+	dev->hard_start_xmit = i596_start_xmit;
+	dev->get_stats = i596_get_stats;
+	dev->set_multicast_list = set_multicast_list;
+	dev->tx_timeout = i596_tx_timeout;
+	dev->watchdog_timeo = TX_TIMEOUT;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	dev->poll_controller = i596_poll_controller;
+#endif
+
+	dev->priv = (void *)(dev->mem_start);
+
+	lp = dev->priv;
+	memset(lp, 0, sizeof(struct i596_private));
+
+	lp->scb.command = 0;
+	lp->scb.cmd = I596_NULL;
+	lp->scb.rfd = I596_NULL;
+	spin_lock_init(&lp->lock);
+	lp->dma_addr = dma_addr;
+	lp->dev = gen_dev;
+	lp->options = options;
+	lp->ca = ca;
+
+	CHECK_WBACK_INV(lp, dev->mem_start, sizeof(struct i596_private));
+
+	i = register_netdev(dev);
+	if (i) {
+		lp = dev->priv;
+		dma_free_noncoherent(lp->dev, sizeof(struct i596_private), 
+				    (void *)dev->mem_start, lp->dma_addr);
+		return i;
+	};
+
+	DEB(DEB_PROBE, printk(KERN_INFO "%s: 82596 at %#3lx,", dev->name, dev->base_addr));
+	for (i = 0; i < 6; i++)
+		DEB(DEB_PROBE, printk(" %2.2X", dev->dev_addr[i]));
+	DEB(DEB_PROBE, printk(" IRQ %d.\n", dev->irq));
+	DEB(DEB_INIT, printk(KERN_INFO "%s: lp at 0x%p (%d bytes), lp->scb at 0x%p\n",
+		dev->name, lp, (int)sizeof(struct i596_private), &lp->scb));
+
+	return 0;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void i596_poll_controller(struct net_device *dev)
+{
+	disable_irq(dev->irq);
+	i596_interrupt(dev->irq, dev);
+	enable_irq(dev->irq);
+}
+#endif
+
+static irqreturn_t i596_interrupt(int irq, void *dev_id)
+{
+	struct net_device *dev = dev_id;
+	struct i596_private *lp;
+	unsigned short status, ack_cmd = 0;
+
+	if (dev == NULL) {
+		printk("%s: irq %d for unknown device.\n", __FUNCTION__, irq);
+		return IRQ_NONE;
+	}
+
+	lp = dev->priv;
+
+	spin_lock (&lp->lock);
+
+	wait_cmd(dev, lp, 100, "i596 interrupt, timeout");
+	status = SWAP16(lp->scb.status);
+
+	DEB(DEB_INTS, printk("%s: i596 interrupt, IRQ %d, status %4.4x.\n",
+			dev->name, irq, status));
+
+	ack_cmd = status & 0xf000;
+
+	if (!ack_cmd) {
+		DEB(DEB_ERRORS, printk("%s: interrupt with no events\n", dev->name));
+		spin_unlock (&lp->lock);
+		return IRQ_NONE;
+	}
+
+	if ((status & 0x8000) || (status & 0x2000)) {
+		struct i596_cmd *ptr;
+
+		if ((status & 0x8000))
+			DEB(DEB_INTS, printk("%s: i596 interrupt completed command.\n", dev->name));
+		if ((status & 0x2000))
+			DEB(DEB_INTS, printk("%s: i596 interrupt command unit inactive %x.\n", dev->name, status & 0x0700));
+
+		while (lp->cmd_head != NULL) {
+			CHECK_INV(lp, lp->cmd_head, sizeof(struct i596_cmd));
+			if (!(lp->cmd_head->status & SWAP16(STAT_C)))
+				break;
+
+			ptr = lp->cmd_head;
+
+			DEB(DEB_STATUS, printk("cmd_head->status = %04x, ->command = %04x\n",
+				       SWAP16(lp->cmd_head->status), SWAP16(lp->cmd_head->command)));
+			lp->cmd_head = ptr->v_next;
+			lp->cmd_backlog--;
+
+			switch (SWAP16(ptr->command) & 0x7) {
+			case CmdTx:
+			    {
+				struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
+				struct sk_buff *skb = tx_cmd->skb;
+
+				if (ptr->status & SWAP16(STAT_OK)) {
+					DEB(DEB_TXADDR, print_eth(skb->data, "tx-done"));
+				} else {
+					lp->stats.tx_errors++;
+					if (ptr->status & SWAP16(0x0020))
+						lp->stats.collisions++;
+					if (!(ptr->status & SWAP16(0x0040)))
+						lp->stats.tx_heartbeat_errors++;
+					if (ptr->status & SWAP16(0x0400))
+						lp->stats.tx_carrier_errors++;
+					if (ptr->status & SWAP16(0x0800))
+						lp->stats.collisions++;
+					if (ptr->status & SWAP16(0x1000))
+						lp->stats.tx_aborted_errors++;
+				}
+				dma_unmap_single(lp->dev, tx_cmd->dma_addr, skb->len, DMA_TO_DEVICE);
+				dev_kfree_skb_irq(skb);
+
+				tx_cmd->cmd.command = 0; /* Mark free */
+				break;
+			    }
+			case CmdTDR:
+			    {
+				unsigned short status = SWAP16(((struct tdr_cmd *)ptr)->status);
+
+				if (status & 0x8000) {
+					DEB(DEB_ANY, printk("%s: link ok.\n", dev->name));
+				} else {
+					if (status & 0x4000)
+						printk("%s: Transceiver problem.\n", dev->name);
+					if (status & 0x2000)
+						printk("%s: Termination problem.\n", dev->name);
+					if (status & 0x1000)
+						printk("%s: Short circuit.\n", dev->name);
+
+					DEB(DEB_TDR, printk("%s: Time %d.\n", dev->name, status & 0x07ff));
+				}
+				break;
+			    }
+			case CmdConfigure:
+				/* Zap command so set_multicast_list() knows it is free */
+				ptr->command = 0;
+				break;
+			}
+			ptr->v_next = NULL;
+		        ptr->b_next = I596_NULL;
+			CHECK_WBACK(lp, ptr, sizeof(struct i596_cmd));
+			lp->last_cmd = jiffies;
+		}
+
+		/* This mess is arranging that only the last of any outstanding
+		 * commands has the interrupt bit set.  Should probably really
+		 * only add to the cmd queue when the CU is stopped.
+		 */
+		ptr = lp->cmd_head;
+		while ((ptr != NULL) && (ptr != lp->cmd_tail)) {
+			struct i596_cmd *prev = ptr;
+			
+			ptr->command &= SWAP16(0x1fff);
+			ptr = ptr->v_next;
+			CHECK_WBACK_INV(lp, prev, sizeof(struct i596_cmd));
+		}
+
+		if ((lp->cmd_head != NULL))
+			ack_cmd |= CUC_START;
+		lp->scb.cmd = SWAP32(virt_to_dma(lp,&lp->cmd_head->status));
+		CHECK_WBACK_INV(lp, &lp->scb, sizeof(struct i596_scb));
+	}
+	if ((status & 0x1000) || (status & 0x4000)) {
+		if ((status & 0x4000))
+			DEB(DEB_INTS, printk("%s: i596 interrupt received a frame.\n", dev->name));
+		i596_rx(dev);
+		/* Only RX_START if stopped - RGH 07-07-96 */
+		if (status & 0x1000) {
+			if (netif_running(dev)) {
+				DEB(DEB_ERRORS, printk("%s: i596 interrupt receive unit inactive, status 0x%x\n", dev->name, status));
+				ack_cmd |= RX_START;
+				lp->stats.rx_errors++;
+				lp->stats.rx_fifo_errors++;
+				rebuild_rx_bufs(dev);
+			}
+		}
+	}
+	wait_cmd(dev, lp, 100, "i596 interrupt, timeout");
+	lp->scb.command = SWAP16(ack_cmd);
+	CHECK_WBACK(lp, &lp->scb, sizeof(struct i596_scb));
+
+	/* DANGER: I suspect that some kind of interrupt
+	 acknowledgement aside from acking the 82596 might be needed 
+	 here...  but it's running acceptably without */
+
+	CA(dev);
+
+	wait_cmd(dev, lp, 100, "i596 interrupt, exit timeout");
+	DEB(DEB_INTS, printk("%s: exiting interrupt.\n", dev->name));
+
+	spin_unlock (&lp->lock);
+	return IRQ_HANDLED;
+}
+
+static int i596_close(struct net_device *dev)
+{
+	struct i596_private *lp = dev->priv;
+	unsigned long flags;
+
+	netif_stop_queue(dev);
+
+	DEB(DEB_INIT, printk("%s: Shutting down ethercard, status was %4.4x.\n",
+		       dev->name, lp->scb.status));
+
+	spin_lock_irqsave(&lp->lock, flags);
+
+	wait_cmd(dev, lp, 100, "close1 timed out");
+	lp->scb.command = SWAP16(CUC_ABORT | RX_ABORT);
+	CHECK_WBACK(lp, &lp->scb, sizeof(struct i596_scb));
+
+	CA(dev);
+
+	wait_cmd(dev, lp, 100, "close2 timed out");
+	spin_unlock_irqrestore(&lp->lock, flags);
+	DEB(DEB_STRUCT,i596_display_data(dev));
+	i596_cleanup_cmd(dev,lp);
+
+	free_irq(dev->irq, dev);
+	remove_rx_bufs(dev);
+
+	return 0;
+}
+
+static struct net_device_stats *i596_get_stats(struct net_device *dev)
+{
+	struct i596_private *lp = dev->priv;
+
+	return &lp->stats;
+}
+
+/*
+ *    Set or clear the multicast filter for this adaptor.
+ */
+
+static void set_multicast_list(struct net_device *dev)
+{
+	struct i596_private *lp = dev->priv;
+	int config = 0, cnt;
+
+	DEB(DEB_MULTI, printk("%s: set multicast list, %d entries, promisc %s, allmulti %s\n",
+		dev->name, dev->mc_count, dev->flags & IFF_PROMISC ? "ON" : "OFF",
+		dev->flags & IFF_ALLMULTI ? "ON" : "OFF"));
+
+	if ((dev->flags & IFF_PROMISC) && !(lp->cf_cmd.i596_config[8] & 0x01)) {
+		lp->cf_cmd.i596_config[8] |= 0x01;
+		config = 1;
+	}
+	if (!(dev->flags & IFF_PROMISC) && (lp->cf_cmd.i596_config[8] & 0x01)) {
+		lp->cf_cmd.i596_config[8] &= ~0x01;
+		config = 1;
+	}
+	if ((dev->flags & IFF_ALLMULTI) && (lp->cf_cmd.i596_config[11] & 0x20)) {
+		lp->cf_cmd.i596_config[11] &= ~0x20;
+		config = 1;
+	}
+	if (!(dev->flags & IFF_ALLMULTI) && !(lp->cf_cmd.i596_config[11] & 0x20)) {
+		lp->cf_cmd.i596_config[11] |= 0x20;
+		config = 1;
+	}
+	if (config) {
+		if (lp->cf_cmd.cmd.command)
+			printk("%s: config change request already queued\n",
+			       dev->name);
+		else {
+			lp->cf_cmd.cmd.command = SWAP16(CmdConfigure);
+			CHECK_WBACK_INV(lp, &lp->cf_cmd, sizeof(struct cf_cmd));
+			i596_add_cmd(dev, &lp->cf_cmd.cmd);
+		}
+	}
+
+	cnt = dev->mc_count;
+	if (cnt > MAX_MC_CNT)
+	{
+		cnt = MAX_MC_CNT;
+		printk("%s: Only %d multicast addresses supported",
+			dev->name, cnt);
+	}
+	
+	if (dev->mc_count > 0) {
+		struct dev_mc_list *dmi;
+		unsigned char *cp;
+		struct mc_cmd *cmd;
+
+		cmd = &lp->mc_cmd;
+		cmd->cmd.command = SWAP16(CmdMulticastList);
+		cmd->mc_cnt = SWAP16(dev->mc_count * 6);
+		cp = cmd->mc_addrs;
+		for (dmi = dev->mc_list; cnt && dmi != NULL; dmi = dmi->next, cnt--, cp += 6) {
+			memcpy(cp, dmi->dmi_addr, 6);
+			if (i596_debug > 1)
+				DEB(DEB_MULTI, printk("%s: Adding address %02x:%02x:%02x:%02x:%02x:%02x\n",
+						dev->name, cp[0],cp[1],cp[2],cp[3],cp[4],cp[5]));
+		}
+		CHECK_WBACK_INV(lp, &lp->mc_cmd, sizeof(struct mc_cmd));
+		i596_add_cmd(dev, &cmd->cmd);
+	}
+}


-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                                [ RFC1925, 2.3 ]
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On Thu, Apr 12, 2007 at 04:53:11PM -0500, Alan Johnson wrote:
> I have a D250/350 with a j3516a with the DEC 21140 chipset.  When I try 
> to install Debian 3.1 it freezes with a trap error on the display.  It 
> boots fine but when it tries to load the tulip driver it freezes and the 
> display on the front shows FLT CBC0 TRAPS CPU01.

I need a bit more info. Can you look at the kernel bug HOW-TO FAQ?

	http://www.parisc-linux.org/faq/kernelbug-howto.html

>  I have 3 of these boards and they all do the same thing.  Is there
> some trick to getting this board to work?

Not aware any trick was needed. I'm pretty sure they worked at one point.

> Has any one else had this issue?

Have you searched the parisc-linux mail archive?
Just look for the j3516a part number.

hth,
grant

> Thanks for any assistance you might be able to provide.
> 
> 
> Alan
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> parisc-linux@lists.parisc-linux.org
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First, hats off to those that have made Linux usable on PA-RISC.  

I was wondering if others have had success running Debian 4.0 (or 3.1 testing)
on a C class workstation (specifically C180) with PCI hardware.

Background:
* Own a C180 with the buggy GSCtoPCI hardware (per note A4190A-01)
* Installed a Compaq quad port PCI ethernet card in the box
* System failed to boot due to firmware lockout
* Modified firmware to bypass error and allow booting
* When Linux probes the PCI bus, errors are reported and device is unusable.

Errors thrown are:
    PCI: Unable to handle 64-bit address space for bridge 0000:00:03.0
    PCI: Failed to allocate mem resource #0:1000@f2c00000 for 0000:01:04.0
    PCI: Failed to allocate mem resource #0:1000@f2c00000 for 0000:01:05.0
    PCI: Failed to allocate mem resource #0:1000@f2c00000 for 0000:01:06.0
    PCI: Failed to allocate mem resource #0:1000@f2c00000 for 0000:01:07.0

The e100 module fails to load with the message:
    Cannot find proper PCI device base address, aborting.

I've traced this to the function pci_read_brige_bases in drives/pci/probe.c.  I
built a new kernel that instead of erroring out, reports and ignores
mem_base_hi and mem_limit_hi.  With this new kernel, I am successfully able to
use my PCI hardware.

mem_base_hi and mem_limit_hi both report as 0xffffffff.  This seems to be
incorrect behaviour per the comments in the code.

Ultimately, my question is whether or not those values are expected or if this
is the result of change in behaviour due to my firmware modification?

FYI, I do understand the potential for corruption of data running in this
configuration but the way in which this machine will be utilized is low risk.

Thanks,
--matt

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Subject: Re: [parisc-linux] Debian 4.0 and PCI issues?
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Xref: news.gmane.org gmane.linux.ports.parisc:24466

On Thu, 2007-04-19 at 00:04 -0600, Grant Grundler wrote:
> On Sat, Apr 14, 2007 at 10:04:49PM -0400, Matthew Evanson wrote:
> > I was wondering if others have had success running Debian 4.0 (or 3.1 testing)
> > on a C class workstation (specifically C180) with PCI hardware.
> 
> Not that many people are running the older generation workstations.
> BTW, which kernel version is Debian 3.1 testing? Is this the 2.6.18-?

When I first installed 3.1 testing, it had been 2.6.15-.  I upgraded
that in place to 4.0 and it is 2.6.18-.  Both versions exhibited the
problem.

> > Background:
> > * Own a C180 with the buggy GSCtoPCI hardware (per note A4190A-01)
> > * Installed a Compaq quad port PCI ethernet card in the box
> > * System failed to boot due to firmware lockout
> > * Modified firmware to bypass error and allow booting
> 
> Can you describe how you did that?
> Maybe even add it someplace to wiki.parisc-linux.org?
> Or just mail it to me off list and I'll add it.

Yeah, I'd be happy to describe that and post it to the wiki.  Are you
looking for how I approached the problem overall or something more
simplistic (i.e. bytes changed in the firmware).  I suppose there could
be some value in both.

> > * When Linux probes the PCI bus, errors are reported and device is unusable.
> > 
> > Errors thrown are:
> 
> Can you capture the console output with a serial console and post it?
> Can you also post "lspci -v"  and "lspci -vt" output using the kernel
> that did boot?

I'm not set up for a serial console... I'll do that in the next day or
two and post the results at that time.  I also intend to boot with the
original firmware, the stock kernel, and no PCI cards to see if the
kernel still complains on PCI bus probe.

Here's the output for lspci -vt:

        
        -[0000:00]---03.0-[0000:01]--+-04.0  Intel Corporation 82557/8/9 [Ethernet Pro 100]
                                     +-05.0  Intel Corporation 82557/8/9 [Ethernet Pro 100]
                                     +-06.0  Intel Corporation 82557/8/9 [Ethernet Pro 100]
                                     \-07.0  Intel Corporation 82557/8/9 [Ethernet Pro 100]
        
and lspci -v:


        00:03.0 PCI bridge: Digital Equipment Corporation DECchip 21154 (rev 05) (prog-if 00 [Normal decode])
                Flags: bus master, fast Back2Back, medium devsel, latency 255
                Bus: primary=00, secondary=01, subordinate=01, sec-latency=255
                I/O behind bridge: 00000000-00000fff
                Memory behind bridge: f2800000-f2bfffff
                Prefetchable memory behind bridge: 00000000f2c00000-00000000f2cfffff
                Capabilities: [dc] Power Management version 1
        
        01:04.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 05)
                Subsystem: Compaq Computer Corporation NC3131 Fast Ethernet NIC (dual port)
                Flags: bus master, medium devsel, latency 255, IRQ 27
                Memory at f2c00000 (32-bit, prefetchable) [size=4K]
                I/O ports at 10000 [size=32]
                Memory at f2800000 (32-bit, non-prefetchable) [size=1M]
                Capabilities: [dc] Power Management version 1
        
        01:05.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 05)
                Subsystem: Compaq Computer Corporation NC3131 Fast Ethernet NIC (dual port)
                Flags: bus master, medium devsel, latency 255, IRQ 28
                Memory at f2c01000 (32-bit, prefetchable) [size=4K]
                I/O ports at 10020 [size=32]
                Memory at f2900000 (32-bit, non-prefetchable) [size=1M]
                Capabilities: [dc] Power Management version 1
        
        01:06.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 05)
                Subsystem: Compaq Computer Corporation NC3132 Fast Ethernet Module (dual port)
                Flags: bus master, medium devsel, latency 255, IRQ 29
                Memory at f2c02000 (32-bit, prefetchable) [size=4K]
                I/O ports at 10040 [size=32]
                Memory at f2a00000 (32-bit, non-prefetchable) [size=1M]
        
        01:07.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 05)
                Subsystem: Compaq Computer Corporation NC3132 Fast Ethernet Module (dual port)
                Flags: bus master, medium devsel, latency 255, IRQ 30
                Memory at f2c03000 (32-bit, prefetchable) [size=4K]
                I/O ports at 10060 [size=32]
                Memory at f2b00000 (32-bit, non-prefetchable) [size=1M]


> > FYI, I do understand the potential for corruption of data running in this
> > configuration but the way in which this machine will be utilized is low risk.
> 
> ok. For NICs, it's probably OK as long as you disable checksum offloading.
> Packets with data that triggers the corruption will just keep getting resent.
> I guess the connection will timeout at that point. So you won't have to
> worry about silently missing the problem.

Thanks for sharing that background.

--matt
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Subject: Re: [parisc-linux] Debian 4.0 and PCI issues?
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Xref: news.gmane.org gmane.linux.ports.parisc:24467

On 4/20/07, Matthew Evanson <debianuser@twosillies.com> wrote:
> On Thu, 2007-04-19 at 00:04 -0600, Grant Grundler wrote:
> > On Sat, Apr 14, 2007 at 10:04:49PM -0400, Matthew Evanson wrote:

> > > Background:
> > > * Own a C180 with the buggy GSCtoPCI hardware (per note A4190A-01)
> > > * Installed a Compaq quad port PCI ethernet card in the box
> > > * System failed to boot due to firmware lockout
> > > * Modified firmware to bypass error and allow booting
> >
> > Can you describe how you did that?
> > Maybe even add it someplace to wiki.parisc-linux.org?
> > Or just mail it to me off list and I'll add it.
>
> Yeah, I'd be happy to describe that and post it to the wiki.  Are you
> looking for how I approached the problem overall or something more
> simplistic (i.e. bytes changed in the firmware).  I suppose there could
> be some value in both.

Create yourself an account on the wiki and let us know your WikiName.
We'll grant you write access from then

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On Thu, 2007-04-19 at 00:04 -0600, Grant Grundler wrote:
> On Sat, Apr 14, 2007 at 10:04:49PM -0400, Matthew Evanson wrote:
> > I was wondering if others have had success running Debian 4.0 (or 3.1 testing)
> > on a C class workstation (specifically C180) with PCI hardware.
> 
> Not that many people are running the older generation workstations.
> BTW, which kernel version is Debian 3.1 testing? Is this the 2.6.18-?

When I first installed 3.1 testing, it had been 2.6.15-.  I upgraded
that in place to 4.0 and it is 2.6.18-.  Both versions exhibited the
problem.

> > Background:
> > * Own a C180 with the buggy GSCtoPCI hardware (per note A4190A-01)
> > * Installed a Compaq quad port PCI ethernet card in the box
> > * System failed to boot due to firmware lockout
> > * Modified firmware to bypass error and allow booting
> 
> Can you describe how you did that?
> Maybe even add it someplace to wiki.parisc-linux.org?
> Or just mail it to me off list and I'll add it.

Yeah, I'd be happy to describe that and post it to the wiki.  Are you
looking for how I approached the problem overall or something more
simplistic (i.e. bytes changed in the firmware).  I suppose there could
be some value in both.

> > * When Linux probes the PCI bus, errors are reported and device is unusable.
> > 
> > Errors thrown are:
> 
> Can you capture the console output with a serial console and post it?
> Can you also post "lspci -v"  and "lspci -vt" output using the kernel
> that did boot?

I'm not set up for a serial console... I'll do that in the next day or
two and post the results at that time.  I also intend to boot with the
original firmware, the stock kernel, and no PCI cards to see if the
kernel still complains on PCI bus probe.

Here's the output for lspci -vt:

        
        -[0000:00]---03.0-[0000:01]--+-04.0  Intel Corporation 82557/8/9 [Ethernet Pro 100]
                                     +-05.0  Intel Corporation 82557/8/9 [Ethernet Pro 100]
                                     +-06.0  Intel Corporation 82557/8/9 [Ethernet Pro 100]
                                     \-07.0  Intel Corporation 82557/8/9 [Ethernet Pro 100]
        
and lspci -v:


        00:03.0 PCI bridge: Digital Equipment Corporation DECchip 21154 (rev 05) (prog-if 00 [Normal decode])
                Flags: bus master, fast Back2Back, medium devsel, latency 255
                Bus: primary=00, secondary=01, subordinate=01, sec-latency=255
                I/O behind bridge: 00000000-00000fff
                Memory behind bridge: f2800000-f2bfffff
                Prefetchable memory behind bridge: 00000000f2c00000-00000000f2cfffff
                Capabilities: [dc] Power Management version 1
        
        01:04.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 05)
                Subsystem: Compaq Computer Corporation NC3131 Fast Ethernet NIC (dual port)
                Flags: bus master, medium devsel, latency 255, IRQ 27
                Memory at f2c00000 (32-bit, prefetchable) [size=4K]
                I/O ports at 10000 [size=32]
                Memory at f2800000 (32-bit, non-prefetchable) [size=1M]
                Capabilities: [dc] Power Management version 1
        
        01:05.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 05)
                Subsystem: Compaq Computer Corporation NC3131 Fast Ethernet NIC (dual port)
                Flags: bus master, medium devsel, latency 255, IRQ 28
                Memory at f2c01000 (32-bit, prefetchable) [size=4K]
                I/O ports at 10020 [size=32]
                Memory at f2900000 (32-bit, non-prefetchable) [size=1M]
                Capabilities: [dc] Power Management version 1
        
        01:06.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 05)
                Subsystem: Compaq Computer Corporation NC3132 Fast Ethernet Module (dual port)
                Flags: bus master, medium devsel, latency 255, IRQ 29
                Memory at f2c02000 (32-bit, prefetchable) [size=4K]
                I/O ports at 10040 [size=32]
                Memory at f2a00000 (32-bit, non-prefetchable) [size=1M]
        
        01:07.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 05)
                Subsystem: Compaq Computer Corporation NC3132 Fast Ethernet Module (dual port)
                Flags: bus master, medium devsel, latency 255, IRQ 30
                Memory at f2c03000 (32-bit, prefetchable) [size=4K]
                I/O ports at 10060 [size=32]
                Memory at f2b00000 (32-bit, non-prefetchable) [size=1M]


> > FYI, I do understand the potential for corruption of data running in this
> > configuration but the way in which this machine will be utilized is low risk.
> 
> ok. For NICs, it's probably OK as long as you disable checksum offloading.
> Packets with data that triggers the corruption will just keep getting resent.
> I guess the connection will timeout at that point. So you won't have to
> worry about silently missing the problem.

Thanks for sharing that background.

--matt

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On Thu, Apr 19, 2007 at 11:29:45AM -0400, Kyle McMartin wrote:
> See $SUBJECT. The merge window will likely open soon, so we have
> 2 weeks from then to collect patches for Linus. What I currently have
> queued is in:
> 
> http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=summary

Nice.

Sorry - can you remind me which git tree you'd like those against?

I'm really still very shaky with git since i only get to use it
once a month. Updates to "Building the Kernel" would be helpful to me.

     http://www.parisc-linux.org/kernel/index.html

Or should I move that page to the Wiki and I can update it?

thanks,
grant

> 
> (The two janitor patches are included, but haven't been pushed yet.)
> 
> Please hit me with any patches you want in 2.6.22.
> 
> Cheers,
> 	Kyle
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On Sat, Apr 14, 2007 at 10:04:49PM -0400, Matthew Evanson wrote:
> 
> First, hats off to those that have made Linux usable on PA-RISC.  

thanks (on behalf of willy, randolph, jda, lamont, bdale, jsm, carlos,
taggart, bame, et al - see "Hall of Fame" on our webpage)

> I was wondering if others have had success running Debian 4.0 (or 3.1 testing)
> on a C class workstation (specifically C180) with PCI hardware.

Not that many people are running the older generation workstations.
BTW, which kernel version is Debian 3.1 testing? Is this the 2.6.18-?

> Background:
> * Own a C180 with the buggy GSCtoPCI hardware (per note A4190A-01)
> * Installed a Compaq quad port PCI ethernet card in the box
> * System failed to boot due to firmware lockout
> * Modified firmware to bypass error and allow booting

Can you describe how you did that?
Maybe even add it someplace to wiki.parisc-linux.org?
Or just mail it to me off list and I'll add it.

> * When Linux probes the PCI bus, errors are reported and device is unusable.
> 
> Errors thrown are:

Can you capture the console output with a serial console and post it?
Can you also post "lspci -v"  and "lspci -vt" output using the kernel
that did boot?

>     PCI: Unable to handle 64-bit address space for bridge 0000:00:03.0
>     PCI: Failed to allocate mem resource #0:1000@f2c00000 for 0000:01:04.0
>     PCI: Failed to allocate mem resource #0:1000@f2c00000 for 0000:01:05.0
>     PCI: Failed to allocate mem resource #0:1000@f2c00000 for 0000:01:06.0
>     PCI: Failed to allocate mem resource #0:1000@f2c00000 for 0000:01:07.0
> 
> The e100 module fails to load with the message:
>     Cannot find proper PCI device base address, aborting.
> 
> I've traced this to the function pci_read_brige_bases in drives/pci/probe.c.
> I built a new kernel that instead of erroring out, reports and ignores
> mem_base_hi and mem_limit_hi.  With this new kernel, I am successfully able to
> use my PCI hardware.
> 
> mem_base_hi and mem_limit_hi both report as 0xffffffff.  This seems to be
> incorrect behaviour per the comments in the code.

AFAIK, dino/cujo do not route GMMIO (>4G addresses).
I would expect zero in both _hi registers on C180 or similar workstations.
I suspect this is intentional because firmware detected the "bad" dino
versions. I don't recall if "cujo" (64-bit slots) are also affected.

> Ultimately, my question is whether or not those values are expected or if this
> is the result of change in behaviour due to my firmware modification?

I suspect the latter....but I don't know what you modified.
It might be possible to hack the dino driver to think this is a
"card-mode" dino and then dino can initialize all PCI device resources.
Might require additional hacking on MMIO resource map but should be do-able.

> FYI, I do understand the potential for corruption of data running in this
> configuration but the way in which this machine will be utilized is low risk.

ok. For NICs, it's probably OK as long as you disable checksum offloading.
Packets with data that triggers the corruption will just keep getting resent.
I guess the connection will timeout at that point. So you won't have to
worry about silently missing the problem.

cheers,
grant

> 
> Thanks,
> --matt
> 
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See $SUBJECT. The merge window will likely open soon, so we have
2 weeks from then to collect patches for Linus. What I currently have
queued is in:

http://git.kernel.org/?p=linux/kernel/git/kyle/parisc-2.6.git;a=summary

(The two janitor patches are included, but haven't been pushed yet.)

Please hit me with any patches you want in 2.6.22.

Cheers,
	Kyle
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From: Julian Stecklina <der_julian@web.de>
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This is a multi-part message in MIME format.
--------------080101010604030705080809
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Hello,

I have a HP Visualize workstation with this fancy little LCD at the 
front controllable via /proc/pdc/lcd. The problem is that the 
responsible driver trims all trailing whitespace, which is quite 
annoying if you want to scroll some text. The attached trivial patch 
(against 2.6.20.1) removes this behaviour.

Regards,
Julian Stecklina

--------------080101010604030705080809
Content-Type: text/x-patch;
 name="no-space-removal.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="no-space-removal.patch"

diff -ur linux-2.6.20.1-hppa.orig/drivers/parisc/led.c linux-2.6.20.1-hppa/drivers/parisc/led.c
--- linux-2.6.20.1-hppa.orig/drivers/parisc/led.c	2007-04-19 12:38:55.000000000 +0200
+++ linux-2.6.20.1-hppa/drivers/parisc/led.c	2007-04-04 18:40:34.000000000 +0200
@@ -195,12 +195,6 @@
 
 	cur = lbuf;
 
-	/* skip initial spaces */
-	while (*cur && isspace(*cur))
-	{
-		cur++;
-	}

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To: parisc-linux@lists.parisc-linux.org,
 Kyle McMartin <kyle@parisc-linux.org>
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On Thursday 19 April 2007, Julian Stecklina wrote:
> I have a HP Visualize workstation with this fancy little LCD at the 
> front controllable via /proc/pdc/lcd. The problem is that the 
> responsible driver trims all trailing whitespace, which is quite 
> annoying if you want to scroll some text. The attached trivial patch 
> (against 2.6.20.1) removes this behaviour.

I'm sure, there was a reason to strip the whitespaces. 
But I forgot it by now and it was probably a not very good reason :-)

Nevertheless, the patch looks good.

Kyle, could you add the patch to your git tree ?
-> http://lists.parisc-linux.org/pipermail/parisc-linux/attachments/20070419/d58ce234/no-space-removal.bin

Helge
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Do we still see pthread/linuxthread-"hangs" on HPPA ?

On Alpha they had similiar problems with "hanging" threads:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=325600

Their trivial solution seems to be:
http://permalink.gmane.org/gmane.linux.debian.ports.alpha/7114

Could this be a solution on HPPA (with #ifdef __hppa__ added) as well ?
Mabye someone who compiles glibc on regular basis want to try ?

Helge
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Hi Thomas,

On Sunday 15 April 2007, Thomas Bogendoerfer wrote:
> as I needed a 82596 driver for a machine (SNI RM400), I took
> lasi_82596.c, cloned it and made it working on that machine. But
> I don't think it's a good idea to have another clone of 82596.c in
> linux, therefore I splitted my cloned driver and took the lasi parts
> to get one major file (lib82596.c) and two hardware specific parts
> (lasi_82596.c and sni_82596.c), which just holds the hardware things
> of the driver. This "new" driver works now on the RM400, so it's
> time to test it on parisc hardware. Unfortunatly my machines with
> lasi82596 are stored away, so I'm looking for someone, who is
> willing to try the patch below and give me feedback.

Tests sucessfully passed on my B160L :-)
 
> Are there any other things, which should be improved in the driver,
> before I'm going to submit this driver ?

Some basic ethtool support would be a nice-to-have.
E.g. name/driver name/Available speeds/link up&down/...

Greetings,
Helge
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On Saturday 17 March 2007, Kyle McMartin wrote:
> On Sat, Mar 17, 2007 at 08:47:44AM -0500, James Bottomley wrote:
> > That's a bit ugly ... and would break if someone added new page sizes.
> > Can't we do something like
> > 
> > #if PAGE_BITS > 16
> > #define THREAD_ORDER 0
> > #else
> > #define THREAD_ORDER (16 - PAGE_BITS)
> > #endif
> > 
> 
> Nice.

Nice yes, but doesn't work.
Basically I think it would need to be PAGE_SHIFT  (instead of PAGE_BITS is part of include/linux/raid/bitmap.h).

But with PAGE_SHIFT you get due to missing #includes lots of:
In file included from include/linux/thread_info.h:21,
                 from include/linux/preempt.h:9,
                 from include/linux/spinlock.h:49,
                 from include/linux/module.h:9,
                 from init/main.c:13:
include/asm/thread_info.h:37:5: warning: "PAGE_SHIFT" is not defined

Adding more #includes isn't a good idea either.

I still propose my initial patch: http://lists.parisc-linux.org/pipermail/parisc-linux/2007-March/031423.html
If someone adds new page sizes (is this likely?), he will stumble over the not-defined THREAD_ORDER anyway and will have to fix it acordingly.

Helge
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> On 4/21/07, Helge Deller <deller@gmx.de> wrote:
> > Do we still see pthread/linuxthread-"hangs" on HPPA ?
> 
> The HPPA hangs are attributed to a race condition in our space id
> setting code. We can reproduce this at will, but we don't yet have a
> good solution. See the older thread about this.

With James' last patch for this problem, I haven't had any zombies
in the GCC testsuite for a couple of months.  My c3k running 2.6.20
hasn't crashed in the same period.  Before, it was crashing every
couple of days.  I'd encourage James to queue this patch for the
next merge even if it isn't perfect.

I tried the testcase from the alpha PR and it didn't cause a problem.

I am seeing timeouts in some thread intensive tests.  For some reason,
these are significantly more frequent on pa8800 with a 64-bit kernel.
I haven't had a chance to investigate but we may have a deadlock somewhere.
I did have a software lockup using a UP kernel a couple of weeks ago.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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> > http://lists.parisc-linux.org/pipermail/parisc-linux/2007-February/031385.html
> 
> This one, definitely not ... it doesn't work ... I need to get acess to
> a machine again where I can play around with it.
> 
> > There's also the somewhat related space register issue associated with
> > TLB flushing:
> > 
> > http://lists.parisc-linux.org/pipermail/parisc-linux/2007-February/031365.html
> 
> I think this one works OK ... but we could do with checking it
> 
> > Randolph's change to tlbflush.h is broken and needs to be reverted
> > if we don't have a better fix yet.
> 
> I really think these problems demonstrate this new approach to patch
> management is non functional.  I bet even the good patch has had no
> testing at all for the last two months.

I've been testing both for the last two months.  My impression is
that the latter patch doesn't fully work.  Although I was able to
successfully bootstrap a SMP kernel with the patch, there were
too many tlb problems for the system to be usable.  The UP version
of the same kernel only has the occassional problem.  It sounds
like I should remove the first one on the pa8800 to see if it is
causing problems.

I definitely miss being able to download parisc patched kernels
and source for testing.  However, I recognize that maintaining
this tree is a lot of work.

Comparing the linux and gcc development models, I have to say I
think the gcc model is better.  In gcc, it's possible to install
bug fixes nearly all the time.  In practice, the only period that
is significantly restricted is the trunk stabilization period
prior to the creation of a release branch.  There are fewers
releases, so this isn't too much of a problem.  The trunk is quite
unstable after a new release branch is created but that's life.

Since the upstream linux merge windows are short, there's definitely
a problem in tracking patches and getting a reasonable amount of
testing before they go upstream.  Even diffs are a problem as changes
can conflict.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: [parisc-linux] PA glibc nls bug
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In the following test program, the call to nl_langinfo_l returns an
incorrect wchar_t string.  We are dropping the first two wide chars:
0x0000897f 0x00005143.  You can see the difference by running this
test on x86 and parisc under gdb, or by printing pp.

#include <locale.h>
#include <langinfo.h>
#include <wchar.h>
wchar_t *
foo (void)
{
  char *__s = "zh_TW";
  wchar_t *pp;
  locale_t loc;
  union { char *__s; wchar_t *__w; } __u;

  loc = newlocale(1 << LC_ALL, __s, 0);
  __u.__s = nl_langinfo_l(_NL_WD_FMT, loc);
  pp = __u.__w;
  return pp;
}
int
main ()
{
  wchar_t *pp;
  pp = foo ();
  return 0;
}

This problem breaks locale support in libstdc++.

I didn't notice this until recently because I didn't have all the locales
needed for the libstdc++ testsuite.  So, the tests using named locales
were skipped.

It's easy to add the necessary locales.  Just add the following to
/etc/locale.gen:

# For libstdc++
de_DE ISO-8859-1
de_DE@euro ISO-8859-15
en_HK ISO-8859-1
en_PH ISO-8859-1
es_ES ISO-8859-1
es_MX ISO-8859-1
fr_FR ISO-8859-1
fr_FR@euro ISO-8859-15
is_IS ISO-8859-1
is_IS.UTF-8 UTF-8
it_IT ISO-8859-1
ja_JP.EUC-JP EUC-JP
se_NO UTF-8
ta_IN UTF-8
zh_TW BIG5
zh_TW.UTF-8 UTF-8
zh_TW.EUC-TW EUC-TW

Then, make the locales available using locale-gen.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Thibaut VARENE" <T-Bone@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Sound problems on a C3600
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On 4/21/07, Julian Stecklina <der_julian@web.de> wrote:
> Hello,
>
> I am trying to get my HP Visualize C3600 to output some sound, but
> without luck so far. Both the onboard AD1889 sound chip and a
> Soundblaster Live! PCI only produce highly distorted noises with the
> 2.6.20.1 kernel.

That "sounds" like an old alsa-on-parisc bug that I thought was fixed,
but could you try using the OSS emulation instead of native ALSA, see
if it does any better?

Thanks

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On Sat, Apr 21, 2007 at 03:11:11PM -0400, John David Anglin wrote:
> I definitely miss being able to download parisc patched kernels
> and source for testing.  However, I recognize that maintaining
> this tree is a lot of work.
> 

I'm on a lot of planes over the next few weeks for work, I'll see if I can
finish off the tinderbox to provide prebuilt binaries and patches if I
get some peace and quiet.

Cheers,
	Kyle
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On Sat, 2007-04-21 at 12:16 -0400, Carlos O'Donell wrote:
> Are you considering your patch for Kyle's CFP?

Er, what patch?

James


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> On Sat, 2007-04-21 at 12:16 -0400, Carlos O'Donell wrote:
> > Are you considering your patch for Kyle's CFP?
> 
> Er, what patch?

http://lists.parisc-linux.org/pipermail/parisc-linux/2007-February/031385.html

There's also the somewhat related space register issue associated with
TLB flushing:

http://lists.parisc-linux.org/pipermail/parisc-linux/2007-February/031365.html

Randolph's change to tlbflush.h is broken and needs to be reverted
if we don't have a better fix yet.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Julian Stecklina <der_julian@web.de>
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Subject: [parisc-linux] Sound problems on a C3600
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Hello,

I am trying to get my HP Visualize C3600 to output some sound, but 
without luck so far. Both the onboard AD1889 sound chip and a 
Soundblaster Live! PCI only produce highly distorted noises with the 
2.6.20.1 kernel.

Is there any information on how to debug this or something else I might 
try to get sound out of this box?

Regards,
Julian
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On Sat, 2007-04-21 at 13:26 -0400, John David Anglin wrote:
> > On Sat, 2007-04-21 at 12:16 -0400, Carlos O'Donell wrote:
> > > Are you considering your patch for Kyle's CFP?
> > 
> > Er, what patch?
> 
> http://lists.parisc-linux.org/pipermail/parisc-linux/2007-February/031385.html

This one, definitely not ... it doesn't work ... I need to get acess to
a machine again where I can play around with it.

> There's also the somewhat related space register issue associated with
> TLB flushing:
> 
> http://lists.parisc-linux.org/pipermail/parisc-linux/2007-February/031365.html

I think this one works OK ... but we could do with checking it

> Randolph's change to tlbflush.h is broken and needs to be reverted
> if we don't have a better fix yet.

I really think these problems demonstrate this new approach to patch
management is non functional.  I bet even the good patch has had no
testing at all for the last two months.  I'm afraid that unless I care
about a patch (i.e. I need it for something I'm doing), I shoot it
across the list and forget about it.  Previously, when I checked it into
the repository and forgot about it, at least it was being built and
tested ... and someone would eventually notice if it needed to go
upstream.

James


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On Sat, Apr 21, 2007 at 04:14:19PM +0200, Helge Deller wrote:
> Tests sucessfully passed on my B160L :-)

thanks for testing.

I did some more changes, so I could use it wie coherent dma memory on
the SNI machines (otherwise I would have to pad all descriptors to
64bytes, because of the 64 byte L2 cacheline size on the R4400 bases
machines). I've testet this version on my B132L and it's working like
the unmodified driver.

> > Are there any other things, which should be improved in the driver,
> > before I'm going to submit this driver ?
> 
> Some basic ethtool support would be a nice-to-have.
> E.g. name/driver name/Available speeds/link up&down/...

no problem, as there are basically static values. Even link detection
would be more or less a "return some_old_state", because the hardware
does only link monitoring during transmits.

My current plan is to submit the changes for inclusion into 2.6.22 and
do enhancments after that.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                                [ RFC1925, 2.3 ]



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Subject: Re: [parisc-linux] PA glibc nls bug
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I has to change the printf slightly.

#include <stdio.h>
#include <stdlib.h>
#include <locale.h>
#include <langinfo.h>
#include <wchar.h>
int
main ()
{
  const char *ls = "zh_TW";
  locale_t loc;
  char *nl;
  int i;
  loc = newlocale (1 << LC_ALL, ls, 0);
  if (loc == NULL) return 1;
  nl = nl_langinfo_l (_NL_WD_FMT, loc);
  if (nl == NULL) return 1;
  for (i = 0; i < 16; i++)
    printf ("%02x", (unsigned char) nl[i]);
  printf ("\n");
  return 0;
}

> gcc -O0 -Wall -pedantic -g3 -D_GNU_SOURCE -o wchart wchart.c
> 
> On x86:
> 2500000059000000745e000025000000
> 
> On parisc:
> 000000250000005900005e7400000025

> I don't see any difference other than byte ordering?
> What are you seeing?

x86:
7f890000435100002500000059000000

parisc:
000000250000005900005e7400000025

If I extend the x86 printf to 24 bytes:
7f890000435100002500000059000000745e000025000000

The x86 result was done on a relatively old system (Suse).  Was
your x86 test done on a Debian system? 

This started as GCC PR 31413:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31413

The 4.cc test fails because this wchar string isn't being correctly
processed:

  const wchar_t wstr[] = { 0x897f, 0x5143, L'2', L'0', L'0', L'3',
			   0x5e74, L'1', L'2', 0x6708, L'1', L'7',
			   0x65e5 , 0x0 };

Note the first two values are the same as my x86 system returns.

Paolo said in comment 2 of the PR that all other linux systems are fine.
However, your x86 results would seem to indicate otherwise.

There does seem to be some assumptions being made about the alignment
of the pointers.  nl_langinfo_l returns a char * and not a wchar_t *.

The issue is clearly in newlocale.  nl_langinfo_l just returns
a pointer that was previously setup.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > This started as GCC PR 31413:
> > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31413
> >
> > The 4.cc test fails because this wchar string isn't being correctly
> > processed:
> >
> >   const wchar_t wstr[] = { 0x897f, 0x5143, L'2', L'0', L'0', L'3',
> >                            0x5e74, L'1', L'2', 0x6708, L'1', L'7',
> >                            0x65e5 , 0x0 };
> >
> > Note the first two values are the same as my x86 system returns.
> 
> Yes, that means my x86 and hppa debian boxes are broken.

Etch/stable is also broken.  Could this problem be present in the
upstream glibc sources as well?

> What do you think could be the problem?
> 
> > The issue is clearly in newlocale.  nl_langinfo_l just returns
> > a pointer that was previously setup.
> 
> newlocale calls nl_langinfo_l to fill in some structures. So it could
> still be a problem with nl_langinfo_l.

I think it will do this if the locale has already been setup.  When
a new locale needs to be setup, it malloc's some memory and sets up
the strings and pointers.

Yesterday, I was looking for something PA specific and not having
much success.  Now that we know that this is a generic problem, I would
file a Debian PR and look through recent changes to the locale files.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] PA glibc nls bug
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> Yesterday, I was looking for something PA specific and not having
> much success.  Now that we know that this is a generic problem, I would
> file a Debian PR and look through recent changes to the locale files.

+  * Add patches/localedata/locale-zh_TW.diff: Remove <U897F><U5143> from
+    dates.  Thanks Dan Jacobson (Closes: #352600)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Jeff Bailey" <jbailey@raspberryginger.com>
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Subject: [parisc-linux] do_page_fault
Date: Tue, 24 Apr 2007 05:41:19 -0400
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I've googled a bit and am having trouble finding a guide to interpret
a do_page_fault message.  Are these the result of a userspace app
behaving poorly?  I'm going to try and reduce this to a test case over
the next few days.

do_page_fault() pid=21916 command='gij-4.1.bin' type=15 address=0x00000004

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  000000ff0004ff0f 0000000042cdded8 0000000041655863 0000000042dc4030
r04-07  0000000042c5ced8 0000000042dc4030 0000000042e16600 0000000042e0e198
r08-11  00000000402fe690 000000004014da80 00000000402f5680 0000000040630460
r12-15  0000000042e165a0 0000000040391000 00000000c0381308 000000004036cf88
r16-19  000000004036d308 0000000000000000 0000000000000000 0000000042c5ced8
r20-23  0000000000000043 00000000400f93b0 0000000041655834 0000000000000800
r24-27  0000000000000000 0000000000000001 0000000042d93fc4 0000000000011a74
r28-31  0000000000000000 0000000000000800 00000000c0382180 0000000041bff5bb
sr00-03  0000000000892800 0000000000892800 0000000000000000 0000000000892800
sr04-07  0000000000892800 0000000000892800 0000000000892800 0000000000892800

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00001000000010001000000000000000
FPER1: 00000000
fr00-03  0808800000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  4024000000000000 3fe6e2ffbde423e5 3f400000d2400000 3ff0000000000000
fr08-11  0000000000000028 00000000f000024c 0000000040541380 0000000000000802
fr12-15  42c5ced80000000b 0000000000000001 42e24000404a01d8 42c5ced8455c4108
fr16-19  fffffffffffff000 0000000000000000 0000000000000802 00000000405a1000
fr20-23  00000000455c4398 0000000040541380 42d4ce0013b13bb5 000002bb00000000
fr24-27  0000000600000000 00000000000225e8 5eb15c1bc135d057 14bb70f5e181fefc
fr28-31  5eb15c1b9efa484d 7c39793785daed7c 5eb15c1b455c4398 ec0fba0d40541380

IASQ: 0000000000892800 0000000000892800 IAOQ: 000000004165586f 0000000041655873
 IIR: 0f881083    ISR: 0000000000892800  IOR: 0000000000000004
 CPU:        0   CR30: 0000000114bc0000 CR31: 0000000040500000
 ORIG_R28: 0000000000000002
 IAOQ[0]: 0x4165586c
 IAOQ[1]: 0x41655870
 RP(r2): 0x41655860


-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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Jeff Bailey wrote:
> I've googled a bit and am having trouble finding a guide to interpret
> a do_page_fault message.  Are these the result of a userspace app
> behaving poorly?  I'm going to try and reduce this to a test case over
> the next few days.

I saw these for testcases of libsigsegv, a very simple library which is 
used to handle page faults in user space. This is normal for garbage 
collected languages, as stock hardware provides no other efficient means 
to implement write barriers to memory other than making the respective 
pages read-only. Page faults under Unix-like systems are slow enough for 
these purposes, so one should not print a complete register dump in the 
handler...

Btw, if someone with a good insight into signal handling has some time: 
I am currently investigating why libsigsegv's testcases all fail. I have 
a patched version that fixes some typos in the configure script to let 
it detect the platform correctly here: 
http://www.inf.tu-dresden.de/~s1054849/libsigsegv-2.4-hppa.tar.gz

Just configure && make && make check.

tests/sigsegv1 gets a wrong fault address (0) in the handler and aborts.

The rest of the test cases just get a SIGSEGV and die, indicating that 
the handler isn't even called.... I am clueless. Any help is greatly 
appreciated.

Regards,
Julian
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On Tue, Apr 24, 2007 at 05:41:19AM -0400, Jeff Bailey wrote:
> I've googled a bit and am having trouble finding a guide to interpret
> a do_page_fault message.  Are these the result of a userspace app
> behaving poorly?  I'm going to try and reduce this to a test case over
> the next few days.
> 
> do_page_fault() pid=21916 command='gij-4.1.bin' type=15 address=0x00000004
> 

Self explainatory (address is the faulting address)

>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111 Not tainted
> r00-03  000000ff0004ff0f 0000000042cdded8 0000000041655863 0000000042dc4030
> r04-07  0000000042c5ced8 0000000042dc4030 0000000042e16600 0000000042e0e198
> r08-11  00000000402fe690 000000004014da80 00000000402f5680 0000000040630460
> r12-15  0000000042e165a0 0000000040391000 00000000c0381308 000000004036cf88
> r16-19  000000004036d308 0000000000000000 0000000000000000 0000000042c5ced8
> r20-23  0000000000000043 00000000400f93b0 0000000041655834 0000000000000800
> r24-27  0000000000000000 0000000000000001 0000000042d93fc4 0000000000011a74
> r28-31  0000000000000000 0000000000000800 00000000c0382180 0000000041bff5bb

General regs

> sr00-03  0000000000892800 0000000000892800 0000000000000000 0000000000892800
> sr04-07  0000000000892800 0000000000892800 0000000000892800 0000000000892800
> 

Space regs (this is a user space)

>      VZOUICununcqcqcqcqcqcrmunTDVZOUI
> FPSR: 00001000000010001000000000000000
> FPER1: 00000000
> fr00-03  0808800000000000 0000000000000000 0000000000000000 0000000000000000
> fr04-07  4024000000000000 3fe6e2ffbde423e5 3f400000d2400000 3ff0000000000000
> fr08-11  0000000000000028 00000000f000024c 0000000040541380 0000000000000802
> fr12-15  42c5ced80000000b 0000000000000001 42e24000404a01d8 42c5ced8455c4108
> fr16-19  fffffffffffff000 0000000000000000 0000000000000802 00000000405a1000
> fr20-23  00000000455c4398 0000000040541380 42d4ce0013b13bb5 000002bb00000000
> fr24-27  0000000600000000 00000000000225e8 5eb15c1bc135d057 14bb70f5e181fefc
> fr28-31  5eb15c1b9efa484d 7c39793785daed7c 5eb15c1b455c4398 ec0fba0d40541380
> 

FPRs

> IASQ: 0000000000892800 0000000000892800

Space queues (front & back)

> IAOQ: 000000004165586f 0000000041655873

The faulting address (and the next address in the queue) with
the prot bits.

> IIR: 0f881083    ISR: 0000000000892800  IOR: 0000000000000004

IIR is the interrupting instruction register, in this case, it's
   0:   0f 88 10 83     ldw 4(ret0),r3

So, can plainly see it's a null ptr deref.

> CPU:        0   CR30: 0000000114bc0000 CR31: 0000000040500000
> ORIG_R28: 0000000000000002
> IAOQ[0]: 0x4165586c
> IAOQ[1]: 0x41655870

Actual faulting address (with the low-bits masked)

> RP(r2): 0x41655860
> 

Return pointer.

Cheers,
	Kyle
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Subject: Re: [parisc-linux] do_page_fault
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On Tue, Apr 24, 2007 at 08:50:35AM -0400, Kyle McMartin wrote:
> > do_page_fault() pid=21916 command='gij-4.1.bin' type=15 address=0x00000004
> > 
> 

'type' here is analogous to 'code' in arch/parisc/kernel/traps.c and
can be decoded using the switch of doom in traps.c

cheers,
	kyle
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Subject: Re: [parisc-linux] do_page_fault
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On Tue, Apr 24, 2007 at 01:15:52PM +0200, Julian Stecklina wrote:
> I saw these for testcases of libsigsegv, a very simple library which is 
> used to handle page faults in user space. This is normal for garbage 
> collected languages, as stock hardware provides no other efficient means 
> to implement write barriers to memory other than making the respective 
> pages read-only. Page faults under Unix-like systems are slow enough for 
> these purposes, so one should not print a complete register dump in the 
> handler...

It's a compile-time option.  I'd be all in favour of turning it off by
default, if only it weren't so darned useful when debugging userspace ...

Maybe someone should make it a prctl?
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On Tue, Apr 24, 2007 at 10:35:12PM -0400, Carlos O'Donell wrote:
> On 4/24/07, Kyle McMartin <kyle@mcmartin.ca> wrote:
> >On Tue, Apr 24, 2007 at 08:50:35AM -0400, Kyle McMartin wrote:
> >> > do_page_fault() pid=21916 command='gij-4.1.bin' type=15 
> >address=0x00000004
> >
> >'type' here is analogous to 'code' in arch/parisc/kernel/traps.c and
> >can be decoded using the switch of doom in traps.c
> 
> ... or the manual of doom "PA-RISC 2.0 ARCHITECTURE" section 5-1
> Interrupt Classes, Group 1-4, interrupts 1-25?
> 

Sure. I just find grep '<code>:' arch/parisc/kernel/traps.c easier than
navigating a pdf.
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On Wed, May 02, 2007 at 11:38:51AM +0200, Aurelien Jarno wrote:
> Please find the reduced testcase below. When the value is assigned to
> __libc_errno, the value of r19 has been overrided by the call to free().
> 

And a smaller one:


extern __thread int __libc_errno __attribute__ ((tls_model ("initial-exec")));
extern void free (void *__ptr) __attribute__ ((__nothrow__));

void test(int *p)
{
  free (p);
  __libc_errno = 25;
}

00000000 <test>:
test():
   0:   6b c2 3f d9     stw rp,-14(sp)
   4:   6f c4 00 80     stw,ma r4,40(sp)
   8:   e8 40 00 00     b,l 10 <test+0x10>,rp
                        8: R_PARISC_PCREL17F    free
   c:   6b d3 3f c1     stw r19,-20(sp)
  10:   2a 60 00 00     addil L%0,r19,r1
                        10: R_PARISC_LTOFF_TP21L        __libc_errno
  14:   48 3c 00 00     ldw 0(r1),ret0
                        14: R_PARISC_LTOFF_TP14R        __libc_errno
  18:   34 15 00 32     ldi 19,r21
  1c:   03 60 08 b4     mfctl tr3,r20
  20:   0b 94 0a 14     add,l r20,ret0,r20
  24:   0e 95 12 80     stw r21,0(r20)
  28:   4b c2 3f 59     ldw -54(sp),rp
  2c:   e8 40 c0 00     bv r0(rp)
  30:   4f c4 3f 81     ldw,mb -40(sp),r4



-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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> On Wed, May 02, 2007 at 11:38:51AM +0200, Aurelien Jarno wrote:
> > Please find the reduced testcase below. When the value is assigned to
> > __libc_errno, the value of r19 has been overrided by the call to free().
> > 
> 
> And a smaller one:
> 
> 
> extern __thread int __libc_errno __attribute__ ((tls_model ("initial-exec")));

This is a bug in __attribute__ ((tls_model ("initial-exec"))).  It
doesn't express that it uses r19.  As a result, GCC is free to optimize
the save and restore of r19 across the call to free away.

The same is true of the asm.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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John David Anglin a crit :
>> On Wed, May 02, 2007 at 11:38:51AM +0200, Aurelien Jarno wrote:
>>> Please find the reduced testcase below. When the value is assigned to
>>> __libc_errno, the value of r19 has been overrided by the call to free().
>>>
>> And a smaller one:
>>
>>
>> extern __thread int __libc_errno __attribute__ ((tls_model ("initial-exec")));
> 
> This is a bug in __attribute__ ((tls_model ("initial-exec"))).  It
> doesn't express that it uses r19.  As a result, GCC is free to optimize
> the save and restore of r19 across the call to free away.
> 
> The same is true of the asm.

What would be the correct way to express that?

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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> > This is a bug in __attribute__ ((tls_model ("initial-exec"))).  It
> > doesn't express that it uses r19.  As a result, GCC is free to optimize
> > the save and restore of r19 across the call to free away.
> > 
> > The same is true of the asm.
> 
> What would be the correct way to express that?

As far as the tls_model attribute goes, I can see that the TLS patterns
in pa.md (e.g., tgd_load) don't express their dependence on r19 and r27.
I think the simplest fix is to use expanders and separate patterns for
pic and non-pic.  This will allow different rtl for the two cases.

Asms that use the pic register need to express that dependence in their
list of input operands.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Ollie Wild" <aaw@google.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] memory management issues
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------=_Part_185071_12665247.1177958661717
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Peter Zijlstra and I have been working on a patch to remove the
command line argument size limitation imposed by MAX_ARG_PAGES.  Since
parisc requires special handling (The stack grows up.), I've been
trying to test this on an a500.  However, I've been running into
issues.

I'd appreciate it if a parisc memory guru could take a look at the
attached patch against kernel-2.6.18-rc1-pa2 and give me some
pointers.

Here's an overview:

In response to previous attempts to increase the command line
limitation (http://thread.gmane.org/gmane.linux.kernel/418858), Linus
has indicated that any temporary pages should be swappable.  This
patch attempts to solve this problem by creating the new process's
mm_struct early in the do_execve() callchain and writing directly into
the new stack segment (cf. copy_strings()).  When I instrument this on
an a500, I observe that the pages are setup correctly and contain
valid values up until the call to switch_mm() via the call stack:

  activate_mm()
  exec_mmap()
  flush_old_exec()
  load_elf_binary()
  do_execve()

Afterwards, the pages are zeroed.

It has been suggested that this may be related to the parisc
addressing model.  However, I'm mapping pages into kernel memory via
get_user_pages() and kmap(), so this should be abstracted out.

Any insights would be greatly appreciated.  :)

Thanks,
Ollie

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Hi all,

On hppa using linuxthreads + TLS, bits/pthreadtypes.h is out of date 
compare to the generic linuxthreads file. This makes pthread.h unusable.

Please find below a patch to fix that.

Bye,
Aurelien

--- libc/ports/sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/pthreadtypes.h	2007-05-01 21:15:38.000000000 +020
+++ libc/ports/sysdeps/unix/sysv/linux/hppa/linuxthreads/bits/pthreadtypes.h	2007-05-01 21:16:03.000000000 +0200
@@ -134,7 +134,7 @@
 } pthread_rwlockattr_t;
 #endif
 
-#ifdef __USE_XOPEN2K
+#if defined __USE_UNIX98 || defined __USE_XOPEN2K
 /* POSIX spinlock data type.  */
 typedef __atomic_lock_t pthread_spinlock_t;
 
-- 
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 : :' :  Debian developer           | Electrical Engineer
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Subject: [parisc-linux] unaligned access using bash on glibc 2.5
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Hi all,

We have just switched to a glibc 2.5 using LT + TLS in Debian. This
causes unaligned memory access when using bash:

bash(19279): unaligned access to 0x000e1bb2 at ip=0x407cb76b

Using prctl to trap on aligned access and gdb, the unaligned access
seems to be in closedir() (a glibc function), at the point marked by
a '*'.
   
   0x40bcb718 <closedir+0>:        stw rp,-14(sp)
   0x40bcb71c <closedir+4>:        stw,ma r5,40(sp)
   0x40bcb720 <closedir+8>:        stw r4,-3c(sp)
   0x40bcb724 <closedir+12>:       stw r3,-38(sp)
   0x40bcb728 <closedir+16>:       movb,= r26,r3,0x40bcb7a8 <closedir+144>
   0x40bcb72c <closedir+20>:       stw r19,-20(sp)
   0x40bcb730 <closedir+24>:       addil L%1000,r19,r1
   0x40bcb734 <closedir+28>:       ldw 0(r3),r5
   0x40bcb738 <closedir+32>:       ldw 5b0(r1),ret0
   0x40bcb73c <closedir+36>:       ldw 64(ret0),r20
   0x40bcb740 <closedir+40>:       cmpib,<> 0,r20,0x40bcb7c8 <closedir+176>
   0x40bcb744 <closedir+44>:       copy r20,r22
   0x40bcb748 <closedir+48>:       b,l 0x40bb4aa0,rp
   0x40bcb74c <closedir+52>:       copy r3,r26
   0x40bcb750 <closedir+56>:       copy r5,r26
   0x40bcb754 <closedir+60>:       copy r19,r4
   0x40bcb758 <closedir+64>:       be,l 100(sr2,r0),sr0,r31
   0x40bcb75c <closedir+68>:       ldi 6,r20
   0x40bcb760 <closedir+72>:       copy r4,r19
   0x40bcb764 <closedir+76>:       addil L%1000,r19,r1
 * 0x40bcb768 <closedir+80>:       ldw 5ec(r1),r31
   0x40bcb76c <closedir+84>:       sub r0,ret0,r22
   0x40bcb770 <closedir+88>:       ldi -1000,r20
   0x40bcb774 <closedir+92>:       cmpb,<< r20,ret0,0x40bcb794 <closedir+124>
   0x40bcb778 <closedir+96>:       copy ret0,r21
   0x40bcb77c <closedir+100>:      copy r21,ret0
   0x40bcb780 <closedir+104>:      ldw -54(sp),rp
   0x40bcb784 <closedir+108>:      ldw -3c(sp),r4
   0x40bcb788 <closedir+112>:      ldw -38(sp),r3
   0x40bcb78c <closedir+116>:      bv r0(rp)
   0x40bcb790 <closedir+120>:      ldw,mb -40(sp),r5
   0x40bcb794 <closedir+124>:      mfctl tr3,ret0
   0x40bcb798 <closedir+128>:      ldi -1,r21
   0x40bcb79c <closedir+132>:      add,l ret0,r31,ret0
   0x40bcb7a0 <closedir+136>:      b,l 0x40bcb77c <closedir+100>,r0
   0x40bcb7a4 <closedir+140>:      stw r22,0(ret0)
   0x40bcb7a8 <closedir+144>:      ldi 16,r21
   0x40bcb7ac <closedir+148>:      addil L%1000,r19,r1
   0x40bcb7b0 <closedir+152>:      ldw 5ec(r1),ret0
   0x40bcb7b4 <closedir+156>:      mfctl tr3,r20
   0x40bcb7b8 <closedir+160>:      add,l r20,ret0,r20
   0x40bcb7bc <closedir+164>:      stw r21,0(r20)
   0x40bcb7c0 <closedir+168>:      b,l 0x40bcb77c <closedir+100>,r0
   0x40bcb7c4 <closedir+172>:      ldi -1,r21

The problem does not look obvious (at least to me). Any idea?

Thanks,
Aurelien

-- 
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 : :' :  Debian developer           | Electrical Engineer
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Xref: news.gmane.org gmane.linux.ports.parisc:24503

Carlos O'Donell a crit :
> On 5/1/07, Aurelien Jarno <aurelien@aurel32.net> wrote:
>> We have just switched to a glibc 2.5 using LT + TLS in Debian. This
>> causes unaligned memory access when using bash:
>>
>> bash(19279): unaligned access to 0x000e1bb2 at ip=0x407cb76b
> 
> Why doesn't this ip match the runtime disassembly you have below?

Well I don't really now. The address return by the kernel is not
aligned, so that's strange. Note that this does not correspond to the
same execution. I run it once to get the entry in the kernel log, and
once with unaligned=signal to get the SIGBUS in gdb.

The address (computed using the contents of r1) matches.

>> Using prctl to trap on aligned access and gdb, the unaligned access
>> seems to be in closedir() (a glibc function), at the point marked by
>> a '*'.
> 
> Is this a dump from disassemble in gdb at runtime?

Yes, running in prctl --unaligned=signal

> What is the value of r19, r2, and r30 at the point of the unaligned access?

rp             0x40bcb753       1086109523
r19            0xe05c6  918982
sp             0xc04b4c00       3226160128

>> The problem does not look obvious (at least to me). Any idea?
> 
> Yes, but I need answers to my three questions :-)

Thanks for your help.

Cheers,
Aurelien

-- 
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> Carlos O'Donell a crit :
> > On 5/1/07, Aurelien Jarno <aurelien@aurel32.net> wrote:
> >> We have just switched to a glibc 2.5 using LT + TLS in Debian. This
> >> causes unaligned memory access when using bash:
> >>
> >> bash(19279): unaligned access to 0x000e1bb2 at ip=0x407cb76b
> > 
> > Why doesn't this ip match the runtime disassembly you have below?
> 
> Well I don't really now. The address return by the kernel is not
> aligned, so that's strange. Note that this does not correspond to the
> same execution. I run it once to get the entry in the kernel log, and
> once with unaligned=signal to get the SIGBUS in gdb.

The two least significant bits in ip contain the priviledge level
of the executing code.  They have to be masked off to get the address
of a faulting instruction.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Aurelien Jarno <aurelien@aurel32.net>
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Subject: Re: [parisc-linux] unaligned access using bash on glibc 2.5
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This is a multi-part message in MIME format.
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Carlos O'Donell a crit :
> On 5/1/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
>> The two least significant bits in ip contain the priviledge level
>> of the executing code.  They have to be masked off to get the address
>> of a faulting instruction.
> 
> You'll be pleasantly suprised to know we tracked this down to a
> missing save/restore of the PIC register on a library call.
> 
>   0x40bcb744 <closedir+44>:       copy r20,r22
>   0x40bcb748 <closedir+48>:       b,l 0x40bb4aa0,rp
>   0x40bcb74c <closedir+52>:       copy r3,r26
> 
> See this lonely b,l without a PIC register save/restore? That's the
> problem. It's a jump to a stub, which calls free, but free tailcalls
> into __internal_free, and the PIC register isn't restored by free or
> by closedir.
> 
> FWIW I see this aswell when compiling glibc with gcc mainline:
> 
>   10:   6b d3 3f c1     stw r19,-20(sp)
> ../sysdeps/unix/closedir.c:52
>   14:   e8 40 00 00     b,l 1c <__closedir+0x1c>,rp
>                         14: R_PARISC_PCREL17F   free
>   18:   0c a0 10 85     ldw 0(r5),r5
> ../sysdeps/unix/closedir.c:54
>   1c:   08 05 02 5a     copy r5,r26
>   20:   08 13 02 44     copy r19,r4
> 
> Why isn't there a save/restore of the PIC register around the call to
> free? Clearly r19 is being used, notice the save/restore starting on
> "20:".
> 

In case you want to have a closer look, please find attached the
preprocessed file. I will try to reduce the testcase later today.

The problem does not appear at -O0, and start to appears with -O1.

Cheers,
Aurelien

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net

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Carlos O'Donell a crit :
> On 5/1/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
>> The two least significant bits in ip contain the priviledge level
>> of the executing code.  They have to be masked off to get the address
>> of a faulting instruction.
> 
> You'll be pleasantly suprised to know we tracked this down to a
> missing save/restore of the PIC register on a library call.
> 
>   0x40bcb744 <closedir+44>:       copy r20,r22
>   0x40bcb748 <closedir+48>:       b,l 0x40bb4aa0,rp
>   0x40bcb74c <closedir+52>:       copy r3,r26
> 
> See this lonely b,l without a PIC register save/restore? That's the
> problem. It's a jump to a stub, which calls free, but free tailcalls
> into __internal_free, and the PIC register isn't restored by free or
> by closedir.
> 
> FWIW I see this aswell when compiling glibc with gcc mainline:
> 
>   10:   6b d3 3f c1     stw r19,-20(sp)
> ../sysdeps/unix/closedir.c:52
>   14:   e8 40 00 00     b,l 1c <__closedir+0x1c>,rp
>                         14: R_PARISC_PCREL17F   free
>   18:   0c a0 10 85     ldw 0(r5),r5
> ../sysdeps/unix/closedir.c:54
>   1c:   08 05 02 5a     copy r5,r26
>   20:   08 13 02 44     copy r19,r4
> 
> Why isn't there a save/restore of the PIC register around the call to
> free? Clearly r19 is being used, notice the save/restore starting on
> "20:".

Note that the asm code starting on line 20 comes from an asm directive
in the preprocessed source.

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
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On Wed, May 02, 2007 at 08:38:02AM +0200, Aurelien Jarno wrote:
> Carlos O'Donell a crit :
> > On 5/1/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> >> The two least significant bits in ip contain the priviledge level
> >> of the executing code.  They have to be masked off to get the address
> >> of a faulting instruction.
> > 
> > You'll be pleasantly suprised to know we tracked this down to a
> > missing save/restore of the PIC register on a library call.
> > 
> >   0x40bcb744 <closedir+44>:       copy r20,r22
> >   0x40bcb748 <closedir+48>:       b,l 0x40bb4aa0,rp
> >   0x40bcb74c <closedir+52>:       copy r3,r26
> > 
> > See this lonely b,l without a PIC register save/restore? That's the
> > problem. It's a jump to a stub, which calls free, but free tailcalls
> > into __internal_free, and the PIC register isn't restored by free or
> > by closedir.
> > 
> > FWIW I see this aswell when compiling glibc with gcc mainline:
> > 
> >   10:   6b d3 3f c1     stw r19,-20(sp)
> > ../sysdeps/unix/closedir.c:52
> >   14:   e8 40 00 00     b,l 1c <__closedir+0x1c>,rp
> >                         14: R_PARISC_PCREL17F   free
> >   18:   0c a0 10 85     ldw 0(r5),r5
> > ../sysdeps/unix/closedir.c:54
> >   1c:   08 05 02 5a     copy r5,r26
> >   20:   08 13 02 44     copy r19,r4
> > 
> > Why isn't there a save/restore of the PIC register around the call to
> > free? Clearly r19 is being used, notice the save/restore starting on
> > "20:".
> > 
> 
> In case you want to have a closer look, please find attached the
> preprocessed file. I will try to reduce the testcase later today.
> 
> The problem does not appear at -O0, and start to appears with -O1.

Some more progress. The following change in the preprocessed source code
"fixes" the problem:

- extern __thread int __libc_errno __attribute__ ((tls_model ("initial-exec")));
+ extern __thread int __libc_errno;

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
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On Wed, May 02, 2007 at 08:38:02AM +0200, Aurelien Jarno wrote:
> Carlos O'Donell a crit :
> > On 5/1/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> >> The two least significant bits in ip contain the priviledge level
> >> of the executing code.  They have to be masked off to get the address
> >> of a faulting instruction.
> > 
> > You'll be pleasantly suprised to know we tracked this down to a
> > missing save/restore of the PIC register on a library call.
> > 
> >   0x40bcb744 <closedir+44>:       copy r20,r22
> >   0x40bcb748 <closedir+48>:       b,l 0x40bb4aa0,rp
> >   0x40bcb74c <closedir+52>:       copy r3,r26
> > 
> > See this lonely b,l without a PIC register save/restore? That's the
> > problem. It's a jump to a stub, which calls free, but free tailcalls
> > into __internal_free, and the PIC register isn't restored by free or
> > by closedir.
> > 
> > FWIW I see this aswell when compiling glibc with gcc mainline:
> > 
> >   10:   6b d3 3f c1     stw r19,-20(sp)
> > ../sysdeps/unix/closedir.c:52
> >   14:   e8 40 00 00     b,l 1c <__closedir+0x1c>,rp
> >                         14: R_PARISC_PCREL17F   free
> >   18:   0c a0 10 85     ldw 0(r5),r5
> > ../sysdeps/unix/closedir.c:54
> >   1c:   08 05 02 5a     copy r5,r26
> >   20:   08 13 02 44     copy r19,r4
> > 
> > Why isn't there a save/restore of the PIC register around the call to
> > free? Clearly r19 is being used, notice the save/restore starting on
> > "20:".
> > 
> 
> In case you want to have a closer look, please find attached the
> preprocessed file. I will try to reduce the testcase later today.
> 

Please find the reduced testcase below. When the value is assigned to
__libc_errno, the value of r19 has been overrided by the call to free().


extern __thread int __libc_errno __attribute__ ((tls_model ("initial-exec")));
extern void free (void *__ptr) __attribute__ ((__nothrow__));

int
__closedir (int *p)
{
  int i;

  i = *p;
  free (p);

  register unsigned long __res asm("r28");                                                                            register unsigned long __r26 __asm__("r26") = (unsigned long)(p);                                                   asm volatile("copy %%r19, %%r4\n"                                                                                                "ble  0x100(%%sr2, %%r0)\n"                                                                                         "ldi %1, %%r20\n"                                                                                                   "copy %%r4, %%r19\n"                                                                                                : "=r" (__res) : "i" (0 + 6) , "r" (__r26)                                               
                            : "memory", "%r1", "%r2", "%r4", "%r20", "%r29", "%r31" , "%r21", "%r22", "%r23", "%r24", "%r25" );

  __libc_errno = 25;

  return __res;
}


-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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> > The same is true of the asm.
> 
> You told me that listing r19 as input was problematic. Is this no longer true?

If I said that, it was wrong.  It's never wrong to correctly specify
asm and rtl dependencies.  I think the issue is pic versus non-pic.

> I noticed that the tie_load tgd_load and tld _load patterns in pa.md
> are broken and don't specify a dependency on r19 or r27.
> 
> Would you be able to cook up a possible fix? :-)

They are definitely broken.  I've been very busy lately, and
have a couple of things I should do first.  I'll get to it sometime.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Thanks, James.

> The first thing this does is
> immediately decohere the page because we zero it through the user
> mapping before adding it to the vma.  Fortunately get_user_pages()
> should make it coherent again.

This is the critical insight I was missing.  I was assuming the page
was unaccessed prior to mapping it into the kernel.  The zeroing
hadn't occurred to me.  Unfortunately, it looks like get_user_pages()
doesn't make it coherent again.  Calling flush_kernel_dcache_page()
alone fails to resolve the problem.  Calling flush_cache_page() after
kmap() and flush_kernel_dcache_page() before kunmap() does.

Is this a bug in get_user_pages()?  Should it be calling
flush_cache_page() directly?

By the way, I've left my kernel running on iodine.  Try running:

    ulimit -s unlimited
    ls -l `find /usr -type f`

Ollie
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To work around the gcc pic/tls bug, I'm using this patch:
http://people.ubuntu.com/~jbailey/hppa-caller-save-pic-tls.dpatch

I thought it would be interesting to compare glibc testsuite failures:
No longer fails:
tst-memstream2
tst-wmemstream2
bug-atexit3-lib
tst-timer5
tst-cpuclock2

New failures:
tststatic
tststatic2
tst-conf18
tst-oddstacklimit (segfaults)
tst-mqueue3
tst-time5
tst-tls9-static

Full lists below:

Build with gcc without the patch.
test-float
test-double
test-idouble
tst-memstream2
tst-wmemstream2
bug-atexit3-lib
tst-cond16
tst-cond17
tst-cancel24
tst-cancelx4
tst-cancelx5
tst-cancelx8
tst-cancelx9
tst-cancelx10
tst-cancelx11
tst-cancelx12
tst-cancelx13
tst-cancelx14
tst-cancelx15
tst-cancelx16
tst-cancelx17
tst-cancelx18
tst-cancelx20
tst-cancelx21
tst-cleanupx0
tst-cleanupx1
tst-cleanupx3
tst-cleanupx4
tst-oncex3
tst-oncex4
tst-timer4
tst-timer5
tst-cpuclock2
tst-cputimer1
tst-cputimer2
tst-cputimer3
tst-pie1 (139)
tst-audit2
tst-addr1
check-textrel

Build with the gcc with the patch:
test-float
test-double
test-idouble
tststatic
tststatic2
tst-cond16
tst-cond17
tst-conf18
tst-oddstacklimit (139)
tst-cancelx4
tst-cancelx5
tst-cancelx8
tst-cancelx9
tst-cancelx10
tst-cancelx11
tst-cancelx12
tst-cancelx13
tst-cancelx14
tst-cancelx15
tst-cancelx16
tst-cancelx17
tst-cancelx18
tst-cancelx20
tst-cancelx21
tst-cleanupx0
tst-cleanupx1
tst-cleanupx3
tst-cleanupx4
tst-oncex3
tst-oncex4
tst-mqueue3
tst-timer4
tst-time5
tst-cputimer1
tst-cputimer2
tst-cputimer3
tst-pie1 (139)
tst-tls9-static
tst-audit2
tst-addr1
check-textrel

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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Jeff Bailey a écrit :
> To work around the gcc pic/tls bug, I'm using this patch:
> http://people.ubuntu.com/~jbailey/hppa-caller-save-pic-tls.dpatch
> 

I have also made a patch to fix the problem that seems to work
correctly. I have posted it to gcc-patches, you can also find it as a
dpatch on http://temp.aurel32.net/hppa-caller-save-pic-tls.dpatch

My machine is too slow to build a glibc (I am doing my gcc tests on
paer.d.o). Would it be possible to do the same tests with my patch?

Thanks,
Aurelien

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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On Thu, 2007-05-03 at 01:11 -0700, Ollie Wild wrote:
> Thanks, James.
> 
> > The first thing this does is
> > immediately decohere the page because we zero it through the user
> > mapping before adding it to the vma.  Fortunately get_user_pages()
> > should make it coherent again.
> 
> This is the critical insight I was missing.  I was assuming the page
> was unaccessed prior to mapping it into the kernel.  The zeroing
> hadn't occurred to me.  Unfortunately, it looks like get_user_pages()
> doesn't make it coherent again.  Calling flush_kernel_dcache_page()
> alone fails to resolve the problem.  Calling flush_cache_page() after
> kmap() and flush_kernel_dcache_page() before kunmap() does.

No, you're perverting the use of get_user_pages() ... it's designed to
get mapping backed pages.  I already did one fix for it so the fuse
people could use it to get anonymous pages ... I have a nasty feeling
stack pages are neither file backed nor anonymous.

Really, given the page is already present and cached in user space, why
not just copy through the user mappings instead of trying to map the
pages into the kernel an then fix up coherence issues, copy then push
the coherency back to the user ... the API you want is copy_in_user().

James


> Is this a bug in get_user_pages()?  Should it be calling
> flush_cache_page() directly?
> 
> By the way, I've left my kernel running on iodine.  Try running:
> 
>     ulimit -s unlimited
>     ls -l `find /usr -type f`
> 
> Ollie

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On 5/3/07, Aurelien Jarno <aurelien@aurel32.net> wrote:

> My machine is too slow to build a glibc (I am doing my gcc tests on
> paer.d.o). Would it be possible to do the same tests with my patch?

Hi Aurelien

If you need access to fast hppa machines, I can fix that ;)

HTH

T-Bone

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http://www.parisc-linux.org/~varenet/
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On Mon, 2007-04-30 at 11:44 -0700, Ollie Wild wrote:
> In response to previous attempts to increase the command line
> limitation (http://thread.gmane.org/gmane.linux.kernel/418858), Linus
> has indicated that any temporary pages should be swappable.  This
> patch attempts to solve this problem by creating the new process's
> mm_struct early in the do_execve() callchain and writing directly into
> the new stack segment (cf. copy_strings()).  When I instrument this on
> an a500, I observe that the pages are setup correctly and contain
> valid values up until the call to switch_mm() via the call stack:
> 
>   activate_mm()
>   exec_mmap()
>   flush_old_exec()
>   load_elf_binary()
>   do_execve()
> 
> Afterwards, the pages are zeroed.

Give me more of a clue on this one ... afterwards *who* sees the pages
as zero'd?  The user or the kernel ... if the user, I think it's a
simple coherency problem.

James


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> Really, given the page is already present and cached in user space, why
> not just copy through the user mappings instead of trying to map the
> pages into the kernel an then fix up coherence issues, copy then push
> the coherency back to the user ... the API you want is copy_in_user().

This doesn't work because we're copying between two different
mm_struct's.  Since we can't have both active at the same time, we
need to setup some sort of temporary mapping.

I could maybe check the vma boundaries and create new pages in the
kernel, but I still need to assign them to the process space to make
them swappable.  Since some binfmt's remove args, I'll also
potentially need to reload old pages, which means copy_strings() will
still need to call get_user_pages() to retrieve potentially swapped
out pages.

Ollie
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To: Ollie Wild <aaw@google.com>
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On Thu, 2007-05-03 at 10:55 -0700, Ollie Wild wrote:
> This doesn't work because we're copying between two different
> mm_struct's.  Since we can't have both active at the same time, we
> need to setup some sort of temporary mapping.
> 
> I could maybe check the vma boundaries and create new pages in the
> kernel, but I still need to assign them to the process space to make
> them swappable.  Since some binfmt's remove args, I'll also
> potentially need to reload old pages, which means copy_strings() will
> still need to call get_user_pages() to retrieve potentially swapped
> out pages.

OK, then you'll just have to go with flush_cache_page() ... it should be
reasonably efficient on parisc since I modified it to do non-current
flushing (which is really what you're doing).  However, you should be
aware that the original parisc implementation threw up its hands and
flushed the entire cache if it found a non-current page ... so if any
other architecture still does that, it will be remarkably inefficient
for you ...

I could give you an API on parisc to copy from one user process to
another via the user cache (which would avoid the coherence issues) but
I'm not sure it would necessarily be portable to other architectures.

James


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From: "Ollie Wild" <aaw@google.com>
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Subject: Re: [parisc-linux] memory management issues
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> I think this is best; if we were to go with a parisc specific API here,
> all other arches that hit this will be in pain. Better fix their
> flush_cache_page() if and when it really is a problem.

Agreed.  Thanks for your help, James.

> Ollie, how about posting this to lkml, and get some feedback, now that
> its mostly complete.

Yep.  I want to port this back to my mainline branch and run a few
sanity check on x86 and uml.  Assuming all looks good, I'll send it
out to lkml tonight or tomorrow morning.

Ollie
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Thibaut VARENE a écrit :
> On 5/3/07, Aurelien Jarno <aurelien@aurel32.net> wrote:
> 
>> My machine is too slow to build a glibc (I am doing my gcc tests on
>> paer.d.o). Would it be possible to do the same tests with my patch?
> 
> Hi Aurelien
> 
> If you need access to fast hppa machines, I can fix that ;)
> 

Actually I need a fast hppa machine where I can install packages that I
have just built (like a new gcc). But that case is very rare, and
paer.d.o is enough in most cases. Thanks anyway.

Bye,
Aurelien

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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> My full list follows, which is smaller than your full list. I am using
> gcc head, and a very recent binutils.

Somewhat surprising since head has significantly more problems than 4.2.0
and binutils has the new eh_frame_hdr warning.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 5/4/07, Aurelien Jarno <aurelien@aurel32.net> wrote:
>
> Actually I need a fast hppa machine where I can install packages that I
> have just built (like a new gcc).

That's absolutely not a problem (especially if you can cope with a
chroot environment). I have systems ready for that purpose.

> But that case is very rare, and
> paer.d.o is enough in most cases. Thanks anyway.

You're welcome, feel free to poke again if you change your mind ;)

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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> Give me more of a clue on this one ... afterwards *who* sees the pages
> as zero'd?  The user or the kernel ... if the user, I think it's a
> simple coherency problem.

Ah, I should have been more clear.  I scattered a bunch of code
similar to this throughout the kernel:

  {
    struct page *page;
    char * addr;

    get_user_pages(current, bprm->mm, bprm->p, 1, 0, 1, &page, NULL);
    addr = kmap(page);
    printk("page = %p, bprm->p = %016lx\n", page, bprm->p);
    printk("%s: %d: \"%s\"\n", __FUNCTION__, __LINE__, addr);
    kunmap(page);
    put_page(page);
  }

I observed that after the activate_mm() call, page and bprm->p were
unchanged, but the string at addr switched from the executable name to
the null string.

I thought that caching might play a role, so I added
flush_dcache_page() calls after the kunmap's, but that didn't help.

Ollie
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On Thu, 2007-05-03 at 14:47 -0500, James Bottomley wrote:
> On Thu, 2007-05-03 at 10:55 -0700, Ollie Wild wrote:
> > This doesn't work because we're copying between two different
> > mm_struct's.  Since we can't have both active at the same time, we
> > need to setup some sort of temporary mapping.
> > 
> > I could maybe check the vma boundaries and create new pages in the
> > kernel, but I still need to assign them to the process space to make
> > them swappable.  Since some binfmt's remove args, I'll also
> > potentially need to reload old pages, which means copy_strings() will
> > still need to call get_user_pages() to retrieve potentially swapped
> > out pages.
> 
> OK, then you'll just have to go with flush_cache_page() ... it should be
> reasonably efficient on parisc since I modified it to do non-current
> flushing (which is really what you're doing).  However, you should be
> aware that the original parisc implementation threw up its hands and
> flushed the entire cache if it found a non-current page ... so if any
> other architecture still does that, it will be remarkably inefficient
> for you ...

I think this is best; if we were to go with a parisc specific API here,
all other arches that hit this will be in pain. Better fix their
flush_cache_page() if and when it really is a problem.

Ollie, how about posting this to lkml, and get some feedback, now that
its mostly complete.

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On Wed, 2007-05-02 at 16:52 -0700, Ollie Wild wrote:
> > Give me more of a clue on this one ... afterwards *who* sees the pages
> > as zero'd?  The user or the kernel ... if the user, I think it's a
> > simple coherency problem.
> 
> Ah, I should have been more clear.  I scattered a bunch of code
> similar to this throughout the kernel:
> 
>   {
>     struct page *page;
>     char * addr;
> 
>     get_user_pages(current, bprm->mm, bprm->p, 1, 0, 1, &page, NULL);
>     addr = kmap(page);
>     printk("page = %p, bprm->p = %016lx\n", page, bprm->p);
>     printk("%s: %d: \"%s\"\n", __FUNCTION__, __LINE__, addr);
>     kunmap(page);
>     put_page(page);
>   }
> 
> I observed that after the activate_mm() call, page and bprm->p were
> unchanged, but the string at addr switched from the executable name to
> the null string.

Well, it seems to be a classic case of missing flushing ... however,
because of the way you've altered the page allocation, it's incredibly
subtle.  You no longer use alloc_page() to get the page, you use
expand_stack on an anonymous vma.  The first thing this does is
immediately decohere the page because we zero it through the user
mapping before adding it to the vma.  Fortunately get_user_pages()
should make it coherent again.  however, you need to
flush_kernel_dcache_page() before kunmap() I think

> I thought that caching might play a role, so I added
> flush_dcache_page() calls after the kunmap's, but that didn't help.

It likely wouldn't ... on most architectures, flush_dcache_page() can do
strange things on non file backed areas ... although most of the time it
should call flush_kernel_dcache_page() anyway.  Try
flush_kernel_dcache_page() first and I can think further if that fails.

James


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Thibaut VARENE wrote:
> On 5/7/07, Julian Stecklina <der_julian@web.de> wrote:
>> Tests done using the onboard AD1889 without any .asoundrc:
>>
>>  > mplayer -ao oss ...
>> ...
>> AO: [oss] 44100Hz 2ch s16be (2 bytes per sample)
>> ...
>> Works!
> 
> Expected
> 
>>  > mplayer -ao alsa ...
>>
>> Doesn't work, noise. (Endian problem? Mplayer's fault?)
> 
> Expected

Why is that?

> If by 'signaling issue' you mean the random crash when doing ctrl-C, I
> don't know if it's fixed. The best way to check is to try ;)

My kernel crashes. :-/

Regards,
Julian
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On 5/8/07, Julian Stecklina <der_julian@web.de> wrote:
> Thibaut VARENE wrote:

> >>  > mplayer -ao alsa ...
> >>
> >> Doesn't work, noise. (Endian problem? Mplayer's fault?)
> >
> > Expected
>
> Why is that?

Because it never worked in the first place, and I asserted the driver
wasn't at fault by testing it on another platform (namely PowerPC).

> > If by 'signaling issue' you mean the random crash when doing ctrl-C, I
> > don't know if it's fixed. The best way to check is to try ;)
>
> My kernel crashes. :-/

Well then, that's one more bug we still have... ;-P

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: [parisc-linux] [patch] removes MAX_ARG_PAGES
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A while back, I sent out a preliminary patch
(http://thread.gmane.org/gmane.linux.ports.hppa/752) to remove the
MAX_ARG_PAGES limit on command line sizes.  Since then, Peter Zijlstra
and I have fixed a number of bugs and addressed the various
outstanding issues.

The attached patch incorporates the following changes:

- Fixes a BUG_ON() assertion failure discovered by Ingo Molnar.
- Adds CONFIG_STACK_GROWSUP (parisc) support.
- Adds auditing support.
- Reverts to the old behavior on architectures with no MMU.
- Fixes broken execution of 64-bit binaries from 32-bit binaries.
- Adds elf_fdpic support.
- Fixes cache coherency bugs.

We've tested the following architectures: i386, x86_64, um/i386,
parisc, and frv.  These are representative of the various scenarios
which this patch addresses, but other architecture teams should try it
out to make sure there aren't any unexpected gotchas.

Ollie

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On Thu, 2007-05-03 at 01:11 -0700, Ollie Wild wrote:
> Is this a bug in get_user_pages()?  Should it be calling
> flush_cache_page() directly?

Just for the sake of completeness, the answer to this is "no".  The
anonymous page part of get_user_pages() is designed to gather pages from
current processes only (an then, the only in-tree user we have is fuse
and that's a bit of a hack).  The problem with your patch is that you're
trying to gather non-current pages.

It took me a while to discover this, largely because you do this:

+                               ret = get_user_pages(current, bprm->mm, pos,
+                                                    1, 1, 1, &page, NULL);

That's horribly wrong ... you can't use the current process context to
gather non-current pages ... if anything goes wrong and the page needs
faulting (unusual for a nascent process, but not impossible) you'll get
into terrible trouble because the mapping for the page isn't in current.

James


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Subject: Re: [parisc-linux] memory management issues
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On Sun, 2007-05-06 at 09:23 -0500, James Bottomley wrote:
> On Thu, 2007-05-03 at 01:11 -0700, Ollie Wild wrote:
> > Is this a bug in get_user_pages()?  Should it be calling
> > flush_cache_page() directly?
> 
> Just for the sake of completeness, the answer to this is "no".  The
> anonymous page part of get_user_pages() is designed to gather pages from
> current processes only (an then, the only in-tree user we have is fuse
> and that's a bit of a hack).  The problem with your patch is that you're
> trying to gather non-current pages.
> 
> It took me a while to discover this, largely because you do this:
> 
> +                               ret = get_user_pages(current, bprm->mm, pos,
> +                                                    1, 1, 1, &page, NULL);
> 
> That's horribly wrong ... you can't use the current process context to
> gather non-current pages ... if anything goes wrong and the page needs
> faulting (unusual for a nascent process, but not impossible) you'll get
> into terrible trouble because the mapping for the page isn't in current.

Right, what would be the proper way to go about this, a NULL tsk?
Because the bprm->mm is un-owned at this point in time. That is, there
is no process context associated with it at all.

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On Sun, 2007-05-06 at 16:42 +0200, Peter Zijlstra wrote:
> > It took me a while to discover this, largely because you do this:
> > 
> > +                               ret = get_user_pages(current, bprm->mm, pos,
> > +                                                    1, 1, 1, &page, NULL);
> > 
> > That's horribly wrong ... you can't use the current process context to
> > gather non-current pages ... if anything goes wrong and the page needs
> > faulting (unusual for a nascent process, but not impossible) you'll get
> > into terrible trouble because the mapping for the page isn't in current.
> 
> Right, what would be the proper way to go about this, a NULL tsk?
> Because the bprm->mm is un-owned at this point in time. That is, there
> is no process context associated with it at all.

Heh, no good way I can think of ... you certainly can't use NULL.  But
look at what you're doing.  You're using the stack expansion functions
to populate the mm's vma ... then you use get_user_pages() to place the
pages into the vma.  I suspect it only works because you're in the
middle of a fork and the new process is structurally almost identical to
the old one, so get_user_pages() is using pieces of current (mainly the
task gate) and accounting all the page faults the new process is taking
to current.

The thing which worries me is that this user of get_user_pages() is very
fragile.  Fortunately, you have the mm ... certainly on parisc, that's
the primary coherence entity for memory management (we don't really care
what the task is).

However, the fragility could be greatly reduced if you could do this
later when you do have a task structure ... then you could even use the
appropriate APIs, like access_proces_vm() or copy_to_user_page() which
will take care of the architecturally necessary flushing for you.

James


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On Sun, 2007-05-06 at 10:39 -0500, James Bottomley wrote:
> On Sun, 2007-05-06 at 16:42 +0200, Peter Zijlstra wrote:
> > > It took me a while to discover this, largely because you do this:
> > > 
> > > +                               ret = get_user_pages(current, bprm->mm, pos,
> > > +                                                    1, 1, 1, &page, NULL);
> > > 
> > > That's horribly wrong ... you can't use the current process context to
> > > gather non-current pages ... if anything goes wrong and the page needs
> > > faulting (unusual for a nascent process, but not impossible) you'll get
> > > into terrible trouble because the mapping for the page isn't in current.
> > 
> > Right, what would be the proper way to go about this, a NULL tsk?
> > Because the bprm->mm is un-owned at this point in time. That is, there
> > is no process context associated with it at all.
> 
> Heh, no good way I can think of ... you certainly can't use NULL.

heh, I suspected that might not work out :-)

>   But
> look at what you're doing.  You're using the stack expansion functions
> to populate the mm's vma ... then you use get_user_pages() to place the
> pages into the vma.  I suspect it only works because you're in the
> middle of a fork

execve, actually. there is only one task_struct, but two mm_structs.

>  and the new process is structurally almost identical to
> the old one, so get_user_pages() is using pieces of current (mainly the
> task gate) and accounting all the page faults the new process is taking
> to current.
> 
> The thing which worries me is that this user of get_user_pages() is very
> fragile.  Fortunately, you have the mm ... certainly on parisc, that's
> the primary coherence entity for memory management (we don't really care
> what the task is).
> 
> However, the fragility could be greatly reduced if you could do this
> later when you do have a task structure ... then you could even use the
> appropriate APIs, like access_proces_vm() or copy_to_user_page() which
> will take care of the architecturally necessary flushing for you.

Well, it would be the same task_struct that we currently have, its just
that we need to copy stuff from the old mm to the new mm, there is no
point in time where both have an associated task_struct.



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Xref: news.gmane.org gmane.linux.ports.parisc:24533

On 03/05/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> On 5/3/07, Jeff Bailey <jbailey@raspberryginger.com> wrote:
> > To work around the gcc pic/tls bug, I'm using this patch:
> > http://people.ubuntu.com/~jbailey/hppa-caller-save-pic-tls.dpatch
> >
> > I thought it would be interesting to compare glibc testsuite failures:
>
> My full list follows, which is smaller than your full list. I am using
> gcc head, and a very recent binutils.
>
> libc/dlfcn/tststatic.out
> libc/dlfcn/tststatic2.out
> libc/nptl/tst-cancel24.o
> libc/nptl/tst-cancelx4.out

> Catch me if you can! :-)

I'm travelling at the moment, so basic troubleshooting is going to be
a bit delayed, just as a quick status report, I'm getting linker
failures in some of the tests.  I've checked that nptl/libpthread.so
has _Unwind_Resume in it, so I'll need to do more hunting this week.

Error message follows in case someone has an obvious "aha":

gcc-4.1 -fno-stack-protector -nostdlib -nostartfiles -o /home/jbailey/Programmin
g/packages/glibc/glibc-2.5/build-tree/hppa-libc/nptl/tst-cancelx4  -Wl,-dynamic-
linker=/lib/ld.so.1   -Wl,-z,combreloc  -Wl,--hash-style=both /home/jbailey/Prog
ramming/packages/glibc/glibc-2.5/build-tree/hppa-libc/csu/crt1.o /home/jbailey/P
rogramming/packages/glibc/glibc-2.5/build-tree/hppa-libc/csu/crti.o `gcc-4.1 -fn
o-stack-protector --print-file-name=crtbegin.o` /home/jbailey/Programming/packag
es/glibc/glibc-2.5/build-tree/hppa-libc/nptl/tst-cancelx4.o /home/jbailey/Progra
mming/packages/glibc/glibc-2.5/build-tree/hppa-libc/nptl/libpthread.so /home/jba
iley/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/nptl/libpthread_n
onshared.a  -Wl,-rpath-link=/home/jbailey/Programming/packages/glibc/glibc-2.5/b
uild-tree/hppa-libc:/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tre
e/hppa-libc/math:/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/h
ppa-libc/elf:/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-
libc/dlfcn:/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-li
bc/nss:/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/n
is:/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/rt:/h
ome/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/resolv:/ho
me/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/crypt:/home
/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/nptl /home/jb
ailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/libc.so.6 /home/
jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/libc_nonshared
.a -lgcc `gcc-4.1 -fno-stack-protector --print-file-name=crtend.o` /home/jbailey
/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/csu/crtn.o
/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/nptl/tst
-cancelx4.o: In function `tf_accept':
/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/glibc-2.5/nptl/tst
-cancel4.c:1000: warning: the use of `mktemp' is dangerous, better use `mkstemp'
/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/nptl/tst
-cancelx4.o: In function `tf_read':
(.text+0xc30): undefined reference to `_Unwind_Resume'
/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/nptl/tst
-cancelx4.o: In function `tf_readv':
(.text+0xd7c): undefined reference to `_Unwind_Resume'
/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/nptl/tst
-cancelx4.o: In function `tf_write':
(.text+0xecc): undefined reference to `_Unwind_Resume'
/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/nptl/tst
-cancelx4.o: In function `tf_writev':
(.text+0x102c): undefined reference to `_Unwind_Resume'
/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/nptl/tst
-cancelx4.o: In function `tf_sleep':
(.text+0x10dc): undefined reference to `_Unwind_Resume'
/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/nptl/tst
-cancelx4.o:(.text+0x118c): more undefined references to `_Unwind_Resume' follow
/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa-libc/nptl/tst
-cancelx4.o:(.data+0x3c): undefined reference to `__gcc_personality_v0'
collect2: ld returned 1 exit status
make[3]: *** [/home/jbailey/Programming/packages/glibc/glibc-2.5/build-tree/hppa
-libc/nptl/tst-cancelx4] Error 1

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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> Yes, I fixed this in my local tree already. For some reason we aren't
> liking in libgcc_s.so.
> 
> http://www.parisc-linux.org/~carlos/2007-05-06-nptl.diff
> 
> Dave, are our specs broken in gcc?

Don't think so.

The link command specifies -nostdlib and -lgcc.  The former means
that gcc shouldn't provide any standard libraries.  The latter links
against libgcc.a.  It doesn't have the unwind stuff.  You need to
either add -lgcc_eh or use -lgcc_s in the link command.

The default for the gcc driver is to link using the archive version
of libgcc.  You can add --shared-libgcc to cause it to use the shared
version.  The g++ driver uses the shared version by default.  Of
course, this doesn't happen when -nostdlib is specified.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Interesting. Why isn't it this patch needed on any other arch? :-)

Don't know but there's one additional factor.  config/linux.h defines
USE_LD_AS_NEEDED if HAVE_LD_AS_NEEDED is defined.  This will add
"--as-needed -lgcc_s" for eh support.  I just checked in and
HAVE_LD_AS_NEEDED is defined in my builds, but if binutils is old
it might not be defined.  However, I would have to dig into to gcc.c
to see what happens when -nostdlibs is defined.  My first thought
is that it shouldn't add "--as-needed -lgcc_s" when -nostdlibs is
present.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Julian Stecklina <der_julian@web.de>
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Subject: Re: [parisc-linux] Sound problems on a C3600
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Thibaut VARENE wrote:
> On 4/21/07, Julian Stecklina <der_julian@web.de> wrote:
>> Hello,
>>
>> I am trying to get my HP Visualize C3600 to output some sound, but
>> without luck so far. Both the onboard AD1889 sound chip and a
>> Soundblaster Live! PCI only produce highly distorted noises with the
>> 2.6.20.1 kernel.
> 
> That "sounds" like an old alsa-on-parisc bug that I thought was fixed,
> but could you try using the OSS emulation instead of native ALSA, see
> if it does any better?

Tests done using the onboard AD1889 without any .asoundrc:

 > mplayer -ao oss ...
...
AO: [oss] 44100Hz 2ch s16be (2 bytes per sample)
...
Works!

 > mplayer -ao alsa ...
alsa-init: requested format: 44100 Hz, 2 channels, 8
alsa-init: using ALSA 1.0.14rc1
alsa-init: setup for 1/2 channel(s)
alsa-init: using device default
alsa-init: pcm opened in blocking mode
alsa-init: chunksize set to 1024
alsa-init: fragcount=16
alsa-init: got buffersize=65536
alsa-init: got period size 1024
alsa: 44100 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Big Endian
AO: [alsa] 44100Hz 2ch s16be (2 bytes per sample)


Doesn't work, noise. (Endian problem? Mplayer's fault?)

 > mplayer -ao alsa:device=hw=0,0 ...
...
alsa-init: requested format: 44100 Hz, 2 channels, 8
alsa-init: using ALSA 1.0.14rc1
alsa-init: setup for 1/2 channel(s)
alsa-init: using device hw:0
alsa-init: pcm opened in blocking mode
[AO_ALSA] Format s16be is not supported by hardware, trying default.
alsa-init: chunksize set to 1024
alsa-init: fragcount=16
alsa-init: got buffersize=65536
alsa-init: got period size 1024
alsa: 44100 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little 
Endian
AO: [alsa] 44100Hz 2ch s16le (2 bytes per sample)
...

Works?!

I then did some tests using mpg123:
An mpg123 using OSS produces only noise as well (seems to be the endian 
issue again). An ALSA mpg123 produces some "cracks" and "scritches" (my 
English is probably not good enough to properly describe this), unless I 
   cause some disk access, then it produces distorted (but sometimes 
recognizable) sound...

uname -a:
Linux efficio 2.6.20.1-hppa #12 Mon May 7 17:40:45 CEST 2007 parisc
PA8600 (PCX-W+) 9000/785/C3600 GNU/Linux

I am happy to supply any needed debugging information. And btw, is the 
signaling issue mentioned in http://wiki.parisc-linux.org/AD1889 fixed, yet?

Regards,
Julian
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Subject: Re: [parisc-linux] Sound problems on a C3600
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On 5/7/07, Julian Stecklina <der_julian@web.de> wrote:
> Tests done using the onboard AD1889 without any .asoundrc:
>
>  > mplayer -ao oss ...
> ...
> AO: [oss] 44100Hz 2ch s16be (2 bytes per sample)
> ...
> Works!

Expected

>  > mplayer -ao alsa ...
>
> Doesn't work, noise. (Endian problem? Mplayer's fault?)

Expected

>  > mplayer -ao alsa:device=hw=0,0 ...

> Works?!

Unexpected ;)

> I then did some tests using mpg123:
> An mpg123 using OSS produces only noise as well (seems to be the endian
> issue again). An ALSA mpg123 produces some "cracks" and "scritches" (my
> English is probably not good enough to properly describe this), unless I
>    cause some disk access, then it produces distorted (but sometimes
> recognizable) sound...

Last time I tried, mpg123 was working for me. The noise issue is
unfortunately a known one without a clear explanation yet, making hard
(if not impossible) to fix...

> uname -a:
> Linux efficio 2.6.20.1-hppa #12 Mon May 7 17:40:45 CEST 2007 parisc
> PA8600 (PCX-W+) 9000/785/C3600 GNU/Linux
>
> I am happy to supply any needed debugging information. And btw, is the
> signaling issue mentioned in http://wiki.parisc-linux.org/AD1889 fixed, yet?

If by 'signaling issue' you mean the random crash when doing ctrl-C, I
don't know if it's fixed. The best way to check is to try ;)

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: [parisc-linux] Re: [patch] removes MAX_ARG_PAGES
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Cc: linux-arch@vger.kernel.org,
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To: "Luck, Tony" <tony.luck@intel.com>
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At some point in the past, Ollie Wild wrote:
>> We've tested the following architectures: i386, x86_64, um/i386,
>> parisc, and frv.  These are representative of the various scenarios
>> which this patch addresses, but other architecture teams should try it
>> out to make sure there aren't any unexpected gotchas.

On Mon, May 07, 2007 at 10:46:49AM -0700, Luck, Tony wrote:
> Doesn't build on ia64: complaints from arch/ia64/ia32/binfmt_elf.c
> (which #includes ../../../fs/binfmt_elf.c) ...
[...]
> Turning off CONFIG_IA32-SUPPORT, the kernel built, but oops'd during boot.
> My serial connection to my test machine is currently broken, so I didn't
> get a capture of the stack trace, sorry.

It needs to sweep 32-bit emulation code more generally.


-- wli
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Subject: [parisc-linux] Re: [patch] removes MAX_ARG_PAGES
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On Wednesday 09 May 2007 4:48 pm, Andrew Morton wrote:
> On Sun, 6 May 2007 01:51:34 -0700
> "Ollie Wild" <aaw@google.com> wrote:
> 
> > A while back, I sent out a preliminary patch
> > (http://thread.gmane.org/gmane.linux.ports.hppa/752) to remove the
> > MAX_ARG_PAGES limit on command line sizes.  Since then, Peter Zijlstra
> > and I have fixed a number of bugs and addressed the various
> > outstanding issues.
> > 
> > The attached patch incorporates the following changes:
> > 
> > - Fixes a BUG_ON() assertion failure discovered by Ingo Molnar.
> > - Adds CONFIG_STACK_GROWSUP (parisc) support.
> > - Adds auditing support.
> > - Reverts to the old behavior on architectures with no MMU.
> > - Fixes broken execution of 64-bit binaries from 32-bit binaries.
> > - Adds elf_fdpic support.
> > - Fixes cache coherency bugs.
> > 
> > We've tested the following architectures: i386, x86_64, um/i386,
> > parisc, and frv.  These are representative of the various scenarios
> > which this patch addresses, but other architecture teams should try it
> > out to make sure there aren't any unexpected gotchas.
>
> I'll duck this for now, given the couple of problems which people have
> reported. 

Just FYI, a really really quick and dirty way of testing this sort of thing on 
more architectures and you're likely to physically have?

1) Install QEMU.

2) Grab http://landley.net/code/firmware (releases in the downloads directory, 
or tarball of most recent repository snapshot is 
wget "http://landley.net/hg/firmware?ca=tip;type=gz").

3) Edit "download.sh" to point at the URL of your tarball instead of whatever 
kernel.org version it's using.  (Or add your patch to sources/patches if it 
applies to the version it's already using.  Note that if you set SHA1= blank 
in download.sh it'll skip the checksum test, so you don't have to recalculate 
the sha1sum if you don't want to.)

4) Run ./build.sh for the architecture you're interested in.  (I suggest 
armv4l, i686, mipsel, and x86_64.  Both sparc and ppc are currently broken 
for different reasons; I'm working on it.)  Wait a longish time for it to 
finish compiling. :)

5) "cd build; ./run-armv4l.sh" and your shell prompt should now be in qemu 
running a kernel for the appropriate architecture.  (You even have a native 
version of gcc you can build stuff with, although you may have 
to "ln -s /tools/lib /lib" to run the results, for reasons Linux From Scratch 
developers will recognize. :)

This won't help you test real hardware (at least hardware qemu doesn't 
emulate), but for stuff like filesystems or executable file formats, it's 
handy. :)

Email me if something doesn't work...

Rob
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Subject: [parisc-linux] Re: [patch] removes MAX_ARG_PAGES
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Cc: linux-arch@vger.kernel.org,
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 linux-mm@kvack.org,
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To: "Ollie Wild" <aaw@google.com>
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On Thursday 10 May 2007 12:06 am, Ollie Wild wrote:
> On 5/9/07, Rob Landley <rob@landley.net> wrote:
> > Just FYI, a really really quick and dirty way of testing this sort of 
thing on
> > more architectures and you're likely to physically have?
> 
> Does this properly emulate caching?  On parisc, cache coherency was
> the main issue we ran into.  I suspect this might be the case with
> other architectures as well.

This is really a QEMU question.  I've been focused on making cross-compilers 
and using those to create kernels and a minimal native build environment I 
could use to natively compile packages with.  (The way I designed the thing 
you could substitute real hardware for the qemu step, assuming you had it.  
Or another emulator like armulator for a specific platform.)

I don't believe QEMU emulates parisc yet, although it adds new platforms all 
the time.  (It just grew an alpha emulation last month.)  It's under very 
active development.

Rob
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From: James Bottomley <James.Bottomley@SteelEye.com>
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Subject: [parisc-linux] DHCP issues in Cupertino (GSYPRF11 died again)
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The root disc on GSYPRF11 became unbootable, so I'm reinstalling.

The upshot of this is that the DHCP/TFTP/Netboot server has been moved
to iodine.  At the moment, iodine only has dhcp entries for ion, ioz and
gsyprf11.  If you have a machine which uses dhcp to initialise its
ethernet interface (or you want to netboot) you'll have to update the
necessary files on iodine (usual root password for an a500).

James


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From: "Jeff Bailey" <jbailey@raspberryginger.com>
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Subject: [parisc-linux] More testsuite info
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To: parisc-linux <parisc-linux@lists.parisc-linux.org>,
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Heya Carlos, thought you might be interested in some stats:

Rebuilding ubuntu gcc-4.2 with the ubuntu glibc-2.5 that was build
with ubuntu gcc-4.2, I have three fewer failures in the gcc testsuite:

FAIL: gcc.c-torture/compile/20001226-1.c  -O3 -fomit-frame-pointer  (test for ex
cess errors)
WARNING: program timed out.
FAIL: gcc.c-torture/compile/20001226-1.c  -O3 -g  (test for excess errors)
WARNING: program timed out.
FAIL: gcc.c-torture/compile/20001226-1.c  -Os  (test for excess errors)

two fewer failures in libmudflap:
FAIL: libmudflap.cth/pass39-frag.c (-O2) (rerun 16) execution test
FAIL: libmudflap.cth/pass39-frag.c (-O2) (rerun 16) output pattern test

one fewer failure in libstdc++:
FAIL: thread/pthread5.cc execution test

but four additional ones:
WARNING: program timed out.
FAIL: thread/pthread1.cc execution test
WARNING: program timed out.
FAIL: thread/pthread3.cc execution test
WARNING: program timed out.
FAIL: tr1/2_general_utilities/memory/shared_ptr/thread/default_weaktoshared.cc e
xecution test
FAIL: tr1/2_general_utilities/memory/shared_ptr/thread/mutex_weaktoshared.cc exe
cution test

Still crawling towards the horizon ;)

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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Subject: Re: [parisc-linux] Re: [PATCH] Fix the atomic compare and swap
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> Then, what about this patch?
> 
> --- ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h.orig	2007-05-20 23:15:37.000000000 +0200
> +++ ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h	2007-05-20 23:15:59.000000000 +0200
> @@ -71,10 +71,10 @@
>  	"copy	%5, %%r24			\n\t"			\
>  	"ble	" LWS "(%%sr2, %%r0)		\n\t"			\
>  	"ldi	" LWS_CAS ", %%r20		\n\t"			\
> +        "sub	%%r0, %%r21, %%r21		\n\t"			\
>  	"cmpib,=,n " ASM_EAGAIN ",%%r21,0b	\n\t"			\

Hmmm, I think the original code was better since it keeps the sub
instruction outside the loop.  The cmpib instruction could be modified
to negate the ASM_EAGAIN.

On the otherhand, I'm now thinking that macros like LWS, LWS_CAS and
ASM_EAGAIN shouldn't be used as they are names that could be used in
user code.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] More testsuite info
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> Rebuilding ubuntu gcc-4.2 with the ubuntu glibc-2.5 that was build
> with ubuntu gcc-4.2, I have three fewer failures in the gcc testsuite:
> 
> FAIL: gcc.c-torture/compile/20001226-1.c  -O3 -fomit-frame-pointer  (test for ex
> cess errors)
> WARNING: program timed out.
> FAIL: gcc.c-torture/compile/20001226-1.c  -O3 -g  (test for excess errors)
> WARNING: program timed out.
> FAIL: gcc.c-torture/compile/20001226-1.c  -Os  (test for excess errors)

This is a known issue and a GCC PR.  Essentially, GCC has gotten
slower over the years and this test fails on slow machines.  One
factor is the checking that's done prior to release.  You can disable
this with the configure option "--disable-checking".

> two fewer failures in libmudflap:
> FAIL: libmudflap.cth/pass39-frag.c (-O2) (rerun 16) execution test
> FAIL: libmudflap.cth/pass39-frag.c (-O2) (rerun 16) output pattern test

These were probably timeouts.  I don't see any libmudflap fails with
gcc-4.2 and linuxthreads.  If you have failures that aren't timeouts,
they need investigation.

> one fewer failure in libstdc++:
> FAIL: thread/pthread5.cc execution test
> 
> but four additional ones:
> WARNING: program timed out.
> FAIL: thread/pthread1.cc execution test
> WARNING: program timed out.
> FAIL: thread/pthread3.cc execution test
> WARNING: program timed out.
> FAIL: tr1/2_general_utilities/memory/shared_ptr/thread/default_weaktoshared.cc e
> xecution test
> FAIL: tr1/2_general_utilities/memory/shared_ptr/thread/mutex_weaktoshared.cc exe
> cution test

These don't fail with linuxthreads.  If mutex_weaktoshared didn't timeout,
then there's an implementation problem with threads (e.g., bug reported
by Aurelien).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 21/05/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > but four additional ones:
> > WARNING: program timed out.
> > FAIL: thread/pthread1.cc execution test
> > WARNING: program timed out.
> > FAIL: thread/pthread3.cc execution test
> > WARNING: program timed out.
> > FAIL: tr1/2_general_utilities/memory/shared_ptr/thread/default_weaktoshared.cc e
> > xecution test
> > FAIL: tr1/2_general_utilities/memory/shared_ptr/thread/mutex_weaktoshared.cc exe
> > cution test
>
> These don't fail with linuxthreads.  If mutex_weaktoshared didn't timeout,
> then there's an implementation problem with threads (e.g., bug reported
> by Aurelien).

These don't fail with the glibc-2.5 (nptl) compiled with gcc-4.1
either.  The only change here is that the glibc was compiled with
gcc-4.2 instead.  Otherwise it's NPTL before and after.

-- 
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> On 5/21/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > > --- ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h.orig     2007-05-20 23:15:37.000000000 +0200
> > > +++ ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h  2007-05-20 23:15:59.000000000 +0200
> > > @@ -71,10 +71,10 @@
> > >       "copy   %5, %%r24                       \n\t"                   \
> > >       "ble    " LWS "(%%sr2, %%r0)            \n\t"                   \
> > >       "ldi    " LWS_CAS ", %%r20              \n\t"                   \
> > > +        "sub %%r0, %%r21, %%r21              \n\t"                   \
> > >       "cmpib,=,n " ASM_EAGAIN ",%%r21,0b      \n\t"                   \
> >
> > Hmmm, I think the original code was better since it keeps the sub
> > instruction outside the loop.  The cmpib instruction could be modified
> > to negate the ASM_EAGAIN.
> 
> The probability of the cmpib branching to 0b is directly proportional
> to the contention on the kernel lock selected by the address hash.
> Adding instructions to the loop is the equivalent of wasting time in
> userpace, so isn't it better to do as much in the loop as possible? I
> guess you waste memory bandwidth with the store.

In the linuxthread case, user spinlock code would typically spin a 
few times and then call nanosleep.  If this fails a few times, the code
calls sched_yield.  From a performance standpoint, I don't think it helps
to waste time in the loop itself.

On the otherhand, the atomic operations on the gateway page are short,
and processes on the gateway page are never supposed to be scheduled
off or sent signals.  So, I think a contended lock is only possible
with a SMP kernel.

> I hadn't considered this code would be an external API, but I guess it
> is... so these defines should probably go away and the constants
> merged into the code?

Yah, this just occurred to me.  It would be nice if the code could
use EAGAIN from errno.h but I can see that that's a bit tricky.
Possibly, a macro argument would work.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > Yah, this just occurred to me.  It would be nice if the code could
> > use EAGAIN from errno.h but I can see that that's a bit tricky.
> > Possibly, a macro argument would work.
> 
> I don't want to be at the *whim* of users who might redefine EAGAIN. I
> think the value should be fixed and immutable.

Users who redefine names reserved by POSIX should be lined up and ...

You are quite safe in fixing the value as any change in the error
number for EAGAIN would break binaries that check for this code.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] [PATCH] Fix the atomic compare and swap function on
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Hi,

I have finally tracked down the "error while loading shared libraries: 
internal error: symidx out of range of fptr table" problem. 

It comes from a bug in atomic.h, the errno number is compared with the
wrong value. The kernel returns -EAGAIN (ie -11), but the value in the
cmpib instruction is EAGAIN (11).

The patch below fixes the problem.

Bye,
Aurelien


2007-05-20  Aurelien Jarno  <aurelien@aurel32.net>

	* sysdeps/unix/sysv/linux/hppa/bits/atomic.h: check for
	-EAGAIN instead of EAGAIN.

--- ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h.orig	2007-05-20 03:28:39.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h	2007-05-20 03:24:41.000000000 +0200
@@ -56,7 +56,7 @@
 #define LWS_CAS "0"
 /* Note r31 is the link register */
 #define LWS_CLOBBER "r1", "r26", "r25", "r24", "r23", "r22", "r21", "r20", "r28", "r31", "memory"
-#define ASM_EAGAIN "-11" 
+#define ASM_EAGAIN "11" 
 
 #if __ASSUME_LWS_CAS
 /* The only basic operation needed is compare and exchange.  */

-- 
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Subject: Re: [parisc-linux] Re: [PATCH] Fix the atomic compare and swap
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Xref: news.gmane.org gmane.linux.ports.parisc:24549

Carlos O'Donell a crit :
> On 5/19/07, Aurelien Jarno <aurelien@aurel32.net> wrote:
>> 2007-05-20  Aurelien Jarno  <aurelien@aurel32.net>
>>
>>         * sysdeps/unix/sysv/linux/hppa/bits/atomic.h: check for
>>         -EAGAIN instead of EAGAIN.
>>
>> --- ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h.orig       2007-05-20 03:28:39.000000000 +0200
>> +++ ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h    2007-05-20 03:24:41.000000000 +0200
>> @@ -56,7 +56,7 @@
>>  #define LWS_CAS "0"
>>  /* Note r31 is the link register */
>>  #define LWS_CLOBBER "r1", "r26", "r25", "r24", "r23", "r22", "r21", "r20", "r28", "r31", "memory"
>> -#define ASM_EAGAIN "11"
>> +#define ASM_EAGAIN "-11"
>>
>>  #if __ASSUME_LWS_CAS
>>  /* The only basic operation needed is compare and exchange.  */
> 
> Aurelian,
> 
> Good catch! I applaud your effort! I'll test the patch this week and
> get it into cvs.
> 
> If the kernel is returning EAGAIN it means there are multiple threads
> calling LWS CAS on addresses whose hash selects the same kernel
> spinlock (there is an array of 16 for minimal scalability). The kernel
> never spins and expects the caller to spin in userpace.
> 
> The verified the original test code I wrote does check for "-11", and
> I did run the kernel tests on an SMP machine with multiple threads, so
> I know that LWS CAS works on SMP.

Well we still have a problem, the failure occurs less often, but still
sometimes. Apparently it is cause by the kernel returning -EDEADLOCK.
How should that be handled? The same way as -EAGAIN?

Cheers,
Aurelien

-- 
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 : :' :  Debian developer           | Electrical Engineer
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   `-    people.debian.org/~aurel32 | www.aurel32.net
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From: Peter Zijlstra <a.p.zijlstra@chello.nl>
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Subject: [parisc-linux] RE: [patch] removes MAX_ARG_PAGES
Date: Tue, 22 May 2007 14:24:05 +0200
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Cc: linux-arch@vger.kernel.org,
 Andrew Morton <akpm@osdl.org>,
 linux-kernel@vger.kernel.org,
 Andi Kleen <ak@suse.de>,
 linux-mm@kvack.org,
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To: "Luck, Tony" <tony.luck@intel.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:24550


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On Mon, 2007-05-07 at 10:46 -0700, Luck, Tony wrote:
> > We've tested the following architectures: i386, x86_64, um/i386,
> > parisc, and frv.  These are representative of the various scenarios
> > which this patch addresses, but other architecture teams should try it
> > out to make sure there aren't any unexpected gotchas.
> 
> Doesn't build on ia64: complaints from arch/ia64/ia32/binfmt_elf.c
> (which #includes ../../../fs/binfmt_elf.c) ...
> 
> arch/ia64/ia32/binfmt_elf32.c: In function `ia32_setup_arg_pages':
> arch/ia64/ia32/binfmt_elf32.c:206: error: `MAX_ARG_PAGES' undeclared (first use in this function)
> arch/ia64/ia32/binfmt_elf32.c:206: error: (Each undeclared identifier is reported only once
> arch/ia64/ia32/binfmt_elf32.c:206: error: for each function it appears in.)
> arch/ia64/ia32/binfmt_elf32.c:240: error: structure has no member named `page'
> arch/ia64/ia32/binfmt_elf32.c:242: error: structure has no member named `page'
> arch/ia64/ia32/binfmt_elf32.c:243: warning: implicit declaration of function `install_arg_page'
> make[1]: *** [arch/ia64/ia32/binfmt_elf32.o] Error 1
> 
> Turning off CONFIG_IA32-SUPPORT, the kernel built, but oops'd during boot.
> My serial connection to my test machine is currently broken, so I didn't
> get a capture of the stack trace, sorry.


Ok, I found the problem. IA64 places constraints on virtual address
space. We initially place the stack at TASK_SIZE, and once the binfmt
tells us where it should have gone, we move it down to the new location.

However IA64 has v-space carved up in regions, and the top of the user
accessible address space is reserved for hugetlbfs.

So we should be using STACK_TOP, which provides the highest stack
address, however, some arches have conditions in the STACK_TOP macros
such that the result is not what is expected until the binfmt
personality is set.

In order to solve this, I added a STACK_TOP_MAX macro for each arch and
use that. This made IA64 boot properly.

The second patch makes the compat stuff compile, untested though, as I
have no idea how that works on ia64.



--=-AD3gMpMUuQSfYMFUfxVH
Content-Disposition: attachment; filename=stack_top_max.patch
Content-Type: text/x-patch; name=stack_top_max.patch; charset=utf-8
Content-Transfer-Encoding: 7bit


New arch macro STACK_TOP_MAX it gives the larges valid stack address for
the architecture in question.

It differs from STACK_TOP in that it will not distinguish between personalities
but will always return the largest possible address.

This is used to create the initial stack on execve, which we will move down
to the proper location once the binfmt code has figured out where that is.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
 fs/exec.c                    |    2 +-
 include/asm-alpha/a.out.h    |    2 ++
 include/asm-arm/a.out.h      |    1 +
 include/asm-arm26/a.out.h    |    1 +
 include/asm-avr32/a.out.h    |    1 +
 include/asm-cris/a.out.h     |    1 +
 include/asm-frv/mem-layout.h |    1 +
 include/asm-h8300/a.out.h    |    1 +
 include/asm-i386/a.out.h     |    1 +
 include/asm-ia64/ustack.h    |    1 +
 include/asm-m32r/a.out.h     |    1 +
 include/asm-m68k/a.out.h     |    1 +
 include/asm-mips/a.out.h     |    1 +
 include/asm-parisc/a.out.h   |    1 +
 include/asm-powerpc/a.out.h  |    3 +++
 include/asm-s390/a.out.h     |    1 +
 include/asm-sh/a.out.h       |    1 +
 include/asm-sh64/a.out.h     |    1 +
 include/asm-sparc/a.out.h    |    1 +
 include/asm-sparc64/a.out.h  |    2 ++
 include/asm-um/a.out.h       |    2 ++
 include/asm-x86_64/a.out.h   |    3 ++-
 include/asm-xtensa/a.out.h   |    1 +
 23 files changed, 29 insertions(+), 2 deletions(-)

Index: linux-2.6-2/include/asm-alpha/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-alpha/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-alpha/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -101,6 +101,8 @@ struct exec
 #define STACK_TOP \
   (current->personality & ADDR_LIMIT_32BIT ? 0x80000000 : 0x00120000000UL)
 
+#define STACK_TOP_MAX	0x00120000000UL
+
 #endif
 
 #endif /* __A_OUT_GNU_H__ */
Index: linux-2.6-2/include/asm-arm/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-arm/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-arm/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -30,6 +30,7 @@ struct exec
 #ifdef __KERNEL__
 #define STACK_TOP	((current->personality == PER_LINUX_32BIT) ? \
 			 TASK_SIZE : TASK_SIZE_26)
+#define STACK_TOP_MAX	TASK_SIZE
 #endif
 
 #ifndef LIBRARY_START_TEXT
Index: linux-2.6-2/include/asm-arm26/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-arm26/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-arm26/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -29,6 +29,7 @@ struct exec
 
 #ifdef __KERNEL__
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 #endif
 
 #ifndef LIBRARY_START_TEXT
Index: linux-2.6-2/include/asm-avr32/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-avr32/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-avr32/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -20,6 +20,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-cris/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-cris/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-cris/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -8,6 +8,7 @@
 
 /* grabbed from the intel stuff  */   
 #define STACK_TOP TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 
 struct exec
Index: linux-2.6-2/include/asm-frv/mem-layout.h
===================================================================
--- linux-2.6-2.orig/include/asm-frv/mem-layout.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-frv/mem-layout.h	2007-05-22 12:39:27.000000000 +0200
@@ -60,6 +60,7 @@
  */
 #define BRK_BASE			__UL(2 * 1024 * 1024 + PAGE_SIZE)
 #define STACK_TOP			__UL(2 * 1024 * 1024)
+#define STACK_TOP_MAX	STACK_TOP
 
 /* userspace process size */
 #ifdef CONFIG_MMU
Index: linux-2.6-2/include/asm-h8300/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-h8300/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-h8300/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -20,6 +20,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-i386/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-i386/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-i386/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -20,6 +20,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-ia64/ustack.h
===================================================================
--- linux-2.6-2.orig/include/asm-ia64/ustack.h	2007-05-22 12:31:15.000000000 +0200
+++ linux-2.6-2/include/asm-ia64/ustack.h	2007-05-22 12:39:45.000000000 +0200
@@ -11,6 +11,7 @@
 /* The absolute hard limit for stack size is 1/2 of the mappable space in the region */
 #define MAX_USER_STACK_SIZE	(RGN_MAP_LIMIT/2)
 #define STACK_TOP		(0x6000000000000000UL + RGN_MAP_LIMIT)
+#define STACK_TOP_MAX		STACK_TOP
 #endif
 
 /* Make a default stack size of 2GiB */
Index: linux-2.6-2/include/asm-m32r/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-m32r/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-m32r/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -20,6 +20,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-m68k/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-m68k/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-m68k/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -20,6 +20,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-mips/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-mips/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-mips/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -40,6 +40,7 @@ struct exec
 #ifdef CONFIG_64BIT
 #define STACK_TOP	(current->thread.mflags & MF_32BIT_ADDR ? TASK_SIZE32 : TASK_SIZE)
 #endif
+#define STACK_TOP_MAX	TASK_SIZE
 
 #endif
 
Index: linux-2.6-2/include/asm-parisc/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-parisc/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-parisc/a.out.h	2007-05-22 13:13:07.000000000 +0200
@@ -23,6 +23,7 @@ struct exec
  * prumpf */
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
 #endif
 
Index: linux-2.6-2/include/asm-powerpc/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-powerpc/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-powerpc/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -26,9 +26,12 @@ struct exec
 #define STACK_TOP (test_thread_flag(TIF_32BIT) ? \
 		   STACK_TOP_USER32 : STACK_TOP_USER64)
 
+#define STACK_TOP_MAX STACK_TOP_USER64
+
 #else /* __powerpc64__ */
 
 #define STACK_TOP TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif /* __powerpc64__ */
 #endif /* __KERNEL__ */
Index: linux-2.6-2/include/asm-s390/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-s390/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-s390/a.out.h	2007-05-22 13:15:00.000000000 +0200
@@ -32,6 +32,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
 #endif
 
Index: linux-2.6-2/include/asm-sh/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-sh/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-sh/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -20,6 +20,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-sh64/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-sh64/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-sh64/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -31,6 +31,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-sparc/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-sparc/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-sparc/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -92,6 +92,7 @@ struct relocation_info /* used when head
 #include <asm/page.h>
 
 #define STACK_TOP	(PAGE_OFFSET - PAGE_SIZE)
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif /* __KERNEL__ */
 
Index: linux-2.6-2/include/asm-sparc64/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-sparc64/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-sparc64/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -101,6 +101,8 @@ struct relocation_info /* used when head
 #define STACK_TOP (test_thread_flag(TIF_32BIT) ? \
 		   STACK_TOP32 : STACK_TOP64)
 
+#define STACK_TOP_MAX STACK_TOP64
+
 #endif
 
 #endif /* !(__ASSEMBLY__) */
Index: linux-2.6-2/include/asm-um/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-um/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-um/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -16,4 +16,6 @@ extern int honeypot;
 #define STACK_TOP \
 	CHOOSE_MODE((honeypot ? host_task_size : task_size), task_size)
 
+#define STACK_TOP_MAX	STACK_TOP
+
 #endif
Index: linux-2.6-2/include/asm-x86_64/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-x86_64/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-x86_64/a.out.h	2007-05-22 12:54:41.000000000 +0200
@@ -21,7 +21,8 @@ struct exec
 
 #ifdef __KERNEL__
 #include <linux/thread_info.h>
-#define STACK_TOP TASK_SIZE
+#define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	TASK_SIZE64
 #endif
 
 #endif /* __A_OUT_GNU_H__ */
Index: linux-2.6-2/include/asm-xtensa/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-xtensa/a.out.h	2007-05-22 12:31:13.000000000 +0200
+++ linux-2.6-2/include/asm-xtensa/a.out.h	2007-05-22 12:39:27.000000000 +0200
@@ -17,6 +17,7 @@
 /* Note: the kernel needs the a.out definitions, even if only ELF is used. */
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 struct exec
 {
Index: linux-2.6-2/fs/exec.c
===================================================================
--- linux-2.6-2.orig/fs/exec.c	2007-05-22 12:39:22.000000000 +0200
+++ linux-2.6-2/fs/exec.c	2007-05-22 13:10:45.000000000 +0200
@@ -282,7 +282,7 @@ int bprm_mm_init(struct linux_binprm *bp
 		 * move this to an appropriate place.  We don't use STACK_TOP
 		 * because that can depend on attributes which aren't
 		 * configured yet. */
-		vma->vm_end = TASK_SIZE;
+		vma->vm_end = STACK_TOP_MAX;
 		vma->vm_start = vma->vm_end - PAGE_SIZE;
 
 		vma->vm_flags = VM_STACK_FLAGS;

--=-AD3gMpMUuQSfYMFUfxVH
Content-Disposition: attachment; filename=setup_arg_pages.patch
Content-Type: text/x-patch; name=setup_arg_pages.patch; charset=utf-8
Content-Transfer-Encoding: 7bit


Convert the ia64/ia32 compat binfmt code to the new way of doing things.
Clean up the x86_64/ia32 code.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
 arch/ia64/ia32/binfmt_elf32.c  |   59 ++++++-----------------------------------
 arch/x86_64/ia32/ia32_aout.c   |    2 -
 arch/x86_64/ia32/ia32_binfmt.c |    7 ----
 fs/exec.c                      |    3 --
 4 files changed, 11 insertions(+), 60 deletions(-)

Index: linux-2.6-2/arch/x86_64/ia32/ia32_binfmt.c
===================================================================
--- linux-2.6-2.orig/arch/x86_64/ia32/ia32_binfmt.c	2007-05-22 13:10:45.000000000 +0200
+++ linux-2.6-2/arch/x86_64/ia32/ia32_binfmt.c	2007-05-22 13:16:14.000000000 +0200
@@ -281,13 +281,6 @@ static void elf32_init(struct pt_regs *r
 	me->thread.es = __USER_DS;
 }
 
-int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top,
-			 int executable_stack)
-{
-	return setup_arg_pages(bprm, stack_top, executable_stack);
-}
-EXPORT_SYMBOL(ia32_setup_arg_pages);
-
 #ifdef CONFIG_SYSCTL
 /* Register vsyscall32 into the ABI table */
 #include <linux/sysctl.h>
Index: linux-2.6-2/arch/ia64/ia32/binfmt_elf32.c
===================================================================
--- linux-2.6-2.orig/arch/ia64/ia32/binfmt_elf32.c	2007-05-22 13:10:45.000000000 +0200
+++ linux-2.6-2/arch/ia64/ia32/binfmt_elf32.c	2007-05-22 13:16:14.000000000 +0200
@@ -198,59 +198,18 @@ ia64_elf32_init (struct pt_regs *regs)
 int
 ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack)
 {
-	unsigned long stack_base;
-	struct vm_area_struct *mpnt;
-	struct mm_struct *mm = current->mm;
-	int i, ret;
-
-	stack_base = IA32_STACK_TOP - MAX_ARG_PAGES*PAGE_SIZE;
-	mm->arg_start = bprm->p + stack_base;
-
-	bprm->p += stack_base;
-	if (bprm->loader)
-		bprm->loader += stack_base;
-	bprm->exec += stack_base;
-
-	mpnt = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-	if (!mpnt)
-		return -ENOMEM;
-
-	down_write(&current->mm->mmap_sem);
-	{
-		mpnt->vm_mm = current->mm;
-		mpnt->vm_start = PAGE_MASK & (unsigned long) bprm->p;
-		mpnt->vm_end = IA32_STACK_TOP;
-		if (executable_stack == EXSTACK_ENABLE_X)
-			mpnt->vm_flags = VM_STACK_FLAGS |  VM_EXEC;
-		else if (executable_stack == EXSTACK_DISABLE_X)
-			mpnt->vm_flags = VM_STACK_FLAGS & ~VM_EXEC;
-		else
-			mpnt->vm_flags = VM_STACK_FLAGS;
-		mpnt->vm_page_prot = (mpnt->vm_flags & VM_EXEC)?
-					PAGE_COPY_EXEC: PAGE_COPY;
-		if ((ret = insert_vm_struct(current->mm, mpnt))) {
-			up_write(&current->mm->mmap_sem);
-			kmem_cache_free(vm_area_cachep, mpnt);
-			return ret;
-		}
-		current->mm->stack_vm = current->mm->total_vm = vma_pages(mpnt);
-	}
+	int ret;
 
-	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
-		struct page *page = bprm->page[i];
-		if (page) {
-			bprm->page[i] = NULL;
-			install_arg_page(mpnt, page, stack_base);
-		}
-		stack_base += PAGE_SIZE;
+	ret = setup_arg_pages(bprm, IA32_STACK_TOP, executable_stack);
+	if (!ret) {
+		/*
+		 * Can't do it in ia64_elf32_init(). Needs to be done before
+		 * calls to elf32_map()
+		 */
+		current->thread.ppl = ia32_init_pp_list();
 	}
-	up_write(&current->mm->mmap_sem);
-
-	/* Can't do it in ia64_elf32_init(). Needs to be done before calls to
-	   elf32_map() */
-	current->thread.ppl = ia32_init_pp_list();
 
-	return 0;
+	return ret;
 }
 
 static void
Index: linux-2.6-2/fs/exec.c
===================================================================
--- linux-2.6-2.orig/fs/exec.c	2007-05-22 13:10:45.000000000 +0200
+++ linux-2.6-2/fs/exec.c	2007-05-22 13:16:14.000000000 +0200
@@ -535,14 +535,13 @@ int setup_arg_pages(struct linux_binprm 
 	stack_base = PAGE_ALIGN(stack_top - stack_base);
 
 	/* Make sure we didn't let the argument array grow too large. */
-	if (vma->vm_end - vma->vm_start > STACK_TOP - stack_base)
+	if (vma->vm_end - vma->vm_start > stack_base)
 		return -ENOMEM;
 
 	stack_shift = stack_base - vma->vm_start;
 	mm->arg_start = bprm->p + stack_shift;
 	bprm->p = vma->vm_end + stack_shift;
 #else
-	BUG_ON(stack_top > STACK_TOP);
 	BUG_ON(stack_top & ~PAGE_MASK);
 
 	stack_base = arch_align_stack(stack_top - mm->stack_vm*PAGE_SIZE);
Index: linux-2.6-2/arch/x86_64/ia32/ia32_aout.c
===================================================================
--- linux-2.6-2.orig/arch/x86_64/ia32/ia32_aout.c	2007-04-24 17:43:39.000000000 +0200
+++ linux-2.6-2/arch/x86_64/ia32/ia32_aout.c	2007-05-22 13:41:11.000000000 +0200
@@ -404,7 +404,7 @@ beyond_if:
 
 	set_brk(current->mm->start_brk, current->mm->brk);
 
-	retval = ia32_setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT);
+	retval = setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT);
 	if (retval < 0) { 
 		/* Someone check-me: is this error path enough? */ 
 		send_sig(SIGKILL, current, 0); 

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On Tue, May 22, 2007 at 10:05:11AM -0400, Carlos O'Donell wrote:
> On 5/22/07, Aurelien Jarno <aurelien@aurel32.net> wrote:
> >Well we still have a problem, the failure occurs less often, but still
> >sometimes. Apparently it is cause by the kernel returning -EDEADLOCK.
> >How should that be handled? The same way as -EAGAIN?
> 
> No.
> 
> The only way you can get  -EDEADLOCK back is to build a kernel with
> ENABLE_LWS_DEBUG, this is strictly a developer only feature, please do
> not enable this.
> 
> Please verify that ENABLE_LWS_DEBUG is defined as 0 in:
> arch/parisc/kernel/syscall.S:467 #define ENABLE_LWS_DEBUG 0
> 

As discussed on IRC, there is actually a bug in the kernel:

  #define ENABLE_LWS_DEBUG 0
  ...
  # ifdef ENABLE_LWS_DEBUG

ENABLE_LWS_DEBUG is defined as 0, so the debug code is enabled.

Please find below a patch which fixes the -EAGAIN problem by harcoding
the value directly into the code. It also adds a workaround for unfixed
kernels which return -EDEADLOCK.

Cheers,
Aurelien


2007-05-22  Aurelien Jarno  <aurelien@aurel32.net>

	* sysdeps/unix/sysv/linux/hppa/bits/atomic.h: check for -11 
	(-EAGAIN) instead of 11. Loop again when the kernel returns
	error -45 (-EDEADLOCK) to workaround a kernel bug (debugging
	code enabled).

--- ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h.orig	2007-05-20 03:28:39.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h	2007-05-20 03:24:41.000000000 +0200
@@ -56,10 +56,14 @@
 #define LWS_CAS "0"
 /* Note r31 is the link register */
 #define LWS_CLOBBER "r1", "r26", "r25", "r24", "r23", "r22", "r21", "r20", "r28", "r31", "memory"
-#define ASM_EAGAIN "11" 
 
 #if __ASSUME_LWS_CAS
-/* The only basic operation needed is compare and exchange.  */
+/* The only basic operation needed is compare and exchange.
+   -11 corresponds to -EAGAIN, and -45 to -EDEADLOCK. The constants
+   must stay the same to avoid breaking backwards compatibility.
+
+   The check for -EDEADLOCK workarounds a kernel bug (debugging code
+   enabled by default). */
 # define atomic_compare_and_exchange_val_acq(mem, newval, oldval) 	\
   ({									\
      volatile int lws_errno = EFAULT;					\
@@ -71,7 +75,10 @@
 	"copy	%5, %%r24			\n\t"			\
 	"ble	" LWS "(%%sr2, %%r0)		\n\t"			\
 	"ldi	" LWS_CAS ", %%r20		\n\t"			\
-	"cmpib,=,n " ASM_EAGAIN ",%%r21,0b	\n\t"			\
+	"cmpib,=,n -11,%%r21,0b			\n\t"			\
+	"nop 					\n\t"			\
+	"ldi	-45, %%r24			\n\t"			\
+	"cmpb,=,n %%r24,%%r21,0b		\n\t"			\
 	"nop					\n\t"			\
 	"stw	%%r28, %0			\n\t"			\
         "sub	%%r0, %%r21, %%r21		\n\t"			\

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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Subject: Re: [parisc-linux] Re: [PATCH] Fix the atomic compare and swap
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On Tue, May 22, 2007 at 05:19:30PM +0200, Aurelien Jarno wrote:
> As discussed on IRC, there is actually a bug in the kernel:
> 
>   #define ENABLE_LWS_DEBUG 0
>   ...
>   # ifdef ENABLE_LWS_DEBUG
> 

Patch to switch #ifdef to #if $x == 1 or the #define to #undef welcome.

> ENABLE_LWS_DEBUG is defined as 0, so the debug code is enabled.
> 
> Please find below a patch which fixes the -EAGAIN problem by harcoding
> the value directly into the code. It also adds a workaround for unfixed
> kernels which return -EDEADLOCK.
> 
> +/* The only basic operation needed is compare and exchange.
> +   -11 corresponds to -EAGAIN, and -45 to -EDEADLOCK. The constants
> +   must stay the same to avoid breaking backwards compatibility.
> +
> +   The check for -EDEADLOCK workarounds a kernel bug (debugging code
> +   enabled by default). */

This is stupid. Why not just use the symbol and then #undef it
immediately afterwards? For extra paranoia name it LWS_RET_EAGAIN or
something.

Putting magic numbers in the code is irritating and makes it more
difficult to read it on a glance.

Regards,
	Kyle
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Xref: news.gmane.org gmane.linux.ports.parisc:24553

The LWS debugging code on parisc is wrongly enabled due to a bug in the
use of the preprocessor directives. This debugging code is not thread 
safe and causes problems with a recent glibc on SMP kernels.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Cc: parisc-linux@lists.parisc-linux.org
---
 syscall.S |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net


diff -u a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -501,7 +501,7 @@
 	shlw	%r20, 4, %r20
 	add	%r20, %r28, %r20
 
-# ifdef ENABLE_LWS_DEBUG
+# if ENABLE_LWS_DEBUG
 	/*	
 		DEBUG, check for deadlock! 
 		If the thread register values are the same
@@ -550,7 +550,7 @@
 		perspective
 	*/
 cas_action:
-#if defined CONFIG_SMP && defined ENABLE_LWS_DEBUG
+#if defined CONFIG_SMP && ENABLE_LWS_DEBUG
 	/* DEBUG */
 	mfctl	%cr27, %r1
 	stw	%r1, 4(%sr2,%r20)
@@ -562,7 +562,7 @@
 #ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# ifdef ENABLE_LWS_DEBUG
+# if ENABLE_LWS_DEBUG
 	/* Clear thread register indicator */
 	stw	%r0, 4(%sr2,%r20)
 # endif
@@ -576,7 +576,7 @@
 #ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# ifdef ENABLE_LWS_DEBUG
+# if ENABLE_LWS_DEBUG
 	stw	%r0, 4(%sr2,%r20)
 # endif
 #endif
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Subject: Re: [parisc-linux] [PATCH] parisc: Disable LWS debugging
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On Tue, May 22, 2007 at 05:38:26PM +0200, Aurelien Jarno wrote:
> The LWS debugging code on parisc is wrongly enabled due to a bug in the
> use of the preprocessor directives. This debugging code is not thread 
> safe and causes problems with a recent glibc on SMP kernels.
> 
> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

merged.
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On Tue, May 22, 2007 at 10:19:32PM -0400, Carlos O'Donell wrote:
> The code shouldn't undefine or define anything a user might define.
> All the constants have to go away. This header needs a rewrite.

However, the _ namespace is reserved to the library.  So _LWS_EGAIN is
permissible.
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On Sun, May 20, 2007 at 03:52:15AM +0200, Aurelien Jarno wrote:
> Hi,
> 
> I have finally tracked down the "error while loading shared libraries: 
> internal error: symidx out of range of fptr table" problem. 
> 
> It comes from a bug in atomic.h, the errno number is compared with the
> wrong value. The kernel returns -EAGAIN (ie -11), but the value in the
> cmpib instruction is EAGAIN (11).
> 
> The patch below fixes the problem.
> 

Oops this patch is reversed.

Please find a new version below.


2007-05-20  Aurelien Jarno  <aurelien@aurel32.net>

	* sysdeps/unix/sysv/linux/hppa/bits/atomic.h: check for
	-EAGAIN instead of EAGAIN.

--- ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h.orig	2007-05-20 03:28:39.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h	2007-05-20 03:24:41.000000000 +0200
@@ -56,7 +56,7 @@
 #define LWS_CAS "0"
 /* Note r31 is the link register */
 #define LWS_CLOBBER "r1", "r26", "r25", "r24", "r23", "r22", "r21", "r20", "r28", "r31", "memory"
-#define ASM_EAGAIN "11" 
+#define ASM_EAGAIN "-11" 
 
 #if __ASSUME_LWS_CAS
 /* The only basic operation needed is compare and exchange.  */

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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On 17/05/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> Thanks for trying to reproduce the set of glibc failures I am seeing
> on hppa-linux. Attached are two patches which represent the entire set
> of local hacks I have applied to glibc and ports.
>
> I've CC'd libc-ports for posterity. Perhaps someone will have pity and
> tell me why I need the as-needed changes in the nptl makefiles (I have
> yet to deduce if this is gcc or glibc's fault).

Heya Carlos!  Thanks for this.  This is a quick heads up for the
experiment.  Using the Ubuntu glibc package, compiling with gcc-4.2
instead of gcc-4.1 removes the following failures:

test-float
tst-cond17
tst-cond18
tst-robustpi8
tst-fork1

Some tests that use C99 initialisers no longer compiler, but that's
expected with glibc-2.5

I'll keep you posted as I converge. =)

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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On Tue, 2007-05-22 at 16:49 -0700, Luck, Tony wrote:
> > In order to solve this, I added a STACK_TOP_MAX macro for each arch and
> > use that. This made IA64 boot properly.
> 
> Yes.  Patches apply to 2.6.21 cleanly, build cleanly and boot for me too.
> I can even run:
> 
> 	$ ls -lrt `find /usr/share -type f -print`
> 
> on the new kernel (thats 48020 files for a total of 2.3MB of args).
> 
> > The second patch makes the compat stuff compile, untested though, as I
> > have no idea how that works on ia64.
> 
> Not so good on this part.  Running an ia32 binary on this patched kernel
> just hung my system :-(

I just tried this on an Altix from the test lab, and ia32 bash just
started.

native 64 bit gave this:

$ ls `find / -xdev -type f` | wc
      1   89847 4200288

but the 32 bit bash kept complaining about his arg list being too long.
This might be a 32->64 issue (/bin/ls is 64 bit after all - and I
couldn't find a 32 bit ls in the compat packages), but I really don't
know. Will look into this.

The difference I had with what I posted last is below; these changes
were just me cleaning up. (and fixing one bug on STACK_GROWS_UP
introduced by the previous patches - but AFAIK that is not relevant to
ia64)

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
 fs/exec.c |   15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

Index: linux-2.6-2/fs/exec.c
===================================================================
--- linux-2.6-2.orig/fs/exec.c	2007-05-24 09:15:54.000000000 +0200
+++ linux-2.6-2/fs/exec.c	2007-05-24 09:41:49.000000000 +0200
@@ -532,26 +532,23 @@ int setup_arg_pages(struct linux_binprm 
 	stack_base = current->signal->rlim[RLIMIT_STACK].rlim_max;
 	if (stack_base > (1 << 30))
 		stack_base = 1 << 30;
-	stack_base = PAGE_ALIGN(stack_top - stack_base);
 
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
 		return -ENOMEM;
 
+	stack_base = PAGE_ALIGN(stack_top - stack_base);
+
 	stack_shift = stack_base - vma->vm_start;
 	mm->arg_start = bprm->p + stack_shift;
 	bprm->p = vma->vm_end + stack_shift;
 #else
 	BUG_ON(stack_top & ~PAGE_MASK);
 
-	stack_base = arch_align_stack(stack_top - mm->stack_vm*PAGE_SIZE);
-	stack_base = PAGE_ALIGN(stack_base);

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From: "Vesa Ruokonen" <vesa.ruokonen@gmail.com>
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Subject: [parisc-linux] 2.6.20 SMP crash
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Xref: news.gmane.org gmane.linux.ports.parisc:24560

 Hi,

Below are console messages from kernel crash with 2.6.20.1
(Gentoo) with SMP. The box is 4-way K380.
Older 2.6.18-rc5-pa3 (git) hasn't crashed.

...
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: <0>------------[ cut here ]------------
Badness at arch/parisc/kernel/smp.c:322
Backtrace:
 [<10252e8c>] report_bug+0x74/0xbc
 [<101084a8>] handle_break+0x38/0xe4
 [<10108a3c>] handle_interruption+0x22c/0x5c0
 [<1010c090>] intr_check_sig+0x0/0x34
 [<1012e748>] vprintk+0x380/0x3c8
 [<1019e8b8>] mntput_no_expire+0x2c/0xfc
 [<10136280>] on_each_cpu+0x1c/0x50
 [<10105d8c>] free_initmem+0x4c/0x208
 [<1010553c>] init+0xb8/0x18c
 [<1010bc5c>] ret_from_kernel_thread+0x1c/0x24

348k freed
INIT: version 2.86 booting


<<stuck here for couple minutes>>


BUG: soft lockup detected on CPU#3!
Backtrace:
 [<10155b94>] softlockup_tick+0xf8/0x124
 [<1013b918>] update_process_times+0x54/0x90
 [<10108f08>] timer_interrupt+0x138/0x1a0
 [<10157b68>] handle_specific_irq_timer+0x60/0x98
 [<10109888>] do_cpu_irq_mask+0x1c0/0x24c
 [<1010c068>] intr_return+0x0/0x1c

      _______________________________
     < Your System ate a SPARC! Gah! >
      -------------------------------
             \   ^__^
              \  (xx)\_______
                 (__)\       )\/\
                  U  ||----w |
                     ||     ||
bash (pid 1252): Protection id trap (code 27)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  0004ff0f 104a7810 10111798 dc4c8108
r04-07  fb2f5ec0 129355c4 129353c8 fb2f5ee4
r08-11  00000000 00000000 129355c4 dc4c8108
r12-15  00000019 fb2f5ab8 00000000 00000001
r16-19  129353c8 fb2f59ec 00000001 00000001
r20-23  00000019 fffffff8 df8d7494 dc4c8088
r24-27  fb2f5ee4 dc4c8088 fb2f5ee4 1046e010
r28-31  00000019 00000080 dc4c8280 409def8f
sr00-03  00000000 00000000 00000000 00000010
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1013fe74 1013fe78
 IIR: 0f54d280    ISR: 00000010  IOR: fb2f5ee4
 CPU:        3   CR30: dc4c8000 CR31: 11111111
 ORIG_R28: 00000000
 IAOQ[0]: copy_siginfo_to_user+0x54/0x458
 IAOQ[1]: copy_siginfo_to_user+0x58/0x458
 RP(r2): setup_rt_frame+0xb8/0x38c
Backtrace:
 [<101083a8>] die_if_kernel+0x130/0x194
 [<10108c28>] handle_interruption+0x418/0x5c0
 [<1010c090>] intr_check_sig+0x0/0x34

-- 
Vesa
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Xref: news.gmane.org gmane.linux.ports.parisc:24561

I thought this should be read by everyone ;)

Begin forwarded message:

Date: Tue, 22 May 2007 01:10:35 -0500
From: Matthew Simpson <ms@tx.rr.com>
To: puffin@pateam.org
Subject: Hardware-List


I have successfully installed hppa etch on an HP c3750, in text mode 
only on the graphics console (i.e. not the serial console). The HP 
graphics card is not supported but I don't need graphics on this
system. PA-RISC 875 mhz processor, 4G RAM.

Installation went very well without any problem, in some cases easier 
than on an Intel system. I was very impressed, good job! I am using
ext3 and reiserfs file systems.

Matt Simpson


-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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> > -#define ASM_EAGAIN "11"
> > +#define ASM_EAGAIN "-11"

If the check is wrong, I would change the compare instead of the
define.  Error numbers are normally defined as positive values.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> I have successfully installed hppa etch on an HP c3750, in text mode 
> only on the graphics console (i.e. not the serial console). The HP 
> graphics card is not supported but I don't need graphics on this
> system. PA-RISC 875 mhz processor, 4G RAM.

For those that do want graphics, I had a problem migrating to
the xorg server.  Keyboard input didn't work because the server
was looking in the wrong place for XKeysymDB.

A fix is here:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=422430

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:24564

Hello Kyle,

Just a short playtime (just need to have some fun from time to time) and =
here
are two small patch which help me build your merge of 2.6.22-rc2:
--- ./drivers/parisc/pdc_stable.c.Orig  2007-05-24 13:19:16.000000000 +00=
00
+++ ./drivers/parisc/pdc_stable.c       2007-05-25 07:03:29.000000000 +00=
00
@@ -1067,7 +1067,7 @@
                        error =3D subsys_create_file(&stable_subsys, attr=
);

        /* register the paths subsys as a subsystem of stable subsys */
-       kset_set_kset_s(&paths_subsys, stable_subsys);
+       kobj_set_kset_s(&paths_subsys, stable_subsys);
        if ((rc =3D subsystem_register(&paths_subsys)))
                goto fail_subsysreg;

--- ./drivers/parisc/power.c.Orig       2007-05-25 07:04:03.000000000 +00=
00
+++ ./drivers/parisc/power.c    2007-05-25 07:04:13.000000000 +0000
@@ -35,6 +35,7 @@
  */

 #include <linux/module.h>
+#include <linux/pm.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/notifier.h>

That even boot on a b180 and a b2k (32bit) compiled with:
# gcc -v
Using built-in specs.
Target: hppa-linux-gnu
Configured with: ../src/configure -v
--enable-languages=3Dc,c++,fortran,objc,obj-c++,treelang --prefix=3D/usr
--enable-shared --with-system-zlib --libexecdir=3D/usr/lib
--without-included-gettext --enable-threads=3Dposix --enable-nls
--with-gxx-include-dir=3D/usr/include/c++/4.1.3 --program-suffix=3D-4.1
--enable-__cxa_atexit --enable-clocale=3Dgnu --enable-libstdcxx-debug
--enable-mpfr --disable-libssp --enable-checking=3Drelease hppa-linux-gnu=

Thread model: posix
gcc version 4.1.3 20070518 (prerelease) (Debian 4.1.2-8)

but I am worry of some WARNING:
## B180
make -f /CAD/linux-2.6.22-rc2-20070524/scripts/Makefile.modpost vmlinux
  scripts/mod/modpost   -o /CAD/linux-2.6-pa-b180/Module.symvers   
arch/parisc/kernel/head.o   init/built-in.o  usr/built-in.o  arc
h/parisc/mm/built-in.o  arch/parisc/kernel/built-in.o 
arch/parisc/math-emu/built-in.o arch/parisc/kernel/init_task.o  kernel/bu=
ilt-
in.o  mm/built-in.o  fs/built-in.o  ipc/built-in.o  security/built-in.o 
crypto/built-in.o  block/built-in.o  lib/lib.a  arch/parisc
/lib/lib.a `gcc -print-libgcc-file-name`  lib/built-in.o 
arch/parisc/lib/built-in.o `gcc -print-libgcc-file-name`  drivers/built-i=
n
.o  sound/built-in.o  net/built-in.o
WARNING: arch/parisc/kernel/built-in.o(.text.alloc_pa_dev+0x150): Section=

mismatch: reference to .init.text:parisc_hardware_descript
ion (after 'alloc_pa_dev')
WARNING: arch/parisc/kernel/built-in.o(.data.read_mostly+0xc4): Section
mismatch: reference to .init.text:processor_probe (between '
cpu_driver' and 'boot_cpu_data')
WARNING: drivers/built-in.o(.text.eisa_probe+0x2c8): Section mismatch:
reference to .init.text:eisa_root_register (after 'eisa_probe
')
WARNING: drivers/built-in.o(.text.sticore_pci_init+0xac): Section mismatc=
h:
reference to .init.text:sti_try_rom_generic (after 'stic
ore_pci_init')
WARNING: drivers/built-in.o(.text.sticore_pci_init+0xcc): Section mismatc=
h:
reference to .init.text:sticore_check_for_default_sti (a
fter 'sticore_pci_init')
WARNING: drivers/built-in.o(.text.parport_init_chip+0x70): Section mismat=
ch:
reference to .init.data:parport_count (after 'parport_i
nit_chip')
WARNING: drivers/built-in.o(.text.parport_init_chip+0x74): Section mismat=
ch:
reference to .init.data:parport_count (after 'parport_i
nit_chip')
WARNING: drivers/built-in.o(.text.parport_init_chip+0x7c): Section mismat=
ch:
reference to .init.data:parport_count (after 'parport_i
nit_chip')
rm -f .old_version

## B2k
make -f /CAD/linux-2.6.22-rc2-20070524/scripts/Makefile.modpost vmlinux
  scripts/mod/modpost -m  -o /CAD/linux-2.6-pa-b2k32/Module.symvers   
arch/parisc/kernel/head.o   init/built-in.o  usr/built-in.o
arch/parisc/mm/built-in.o  arch/parisc/kernel/built-in.o 
arch/parisc/math-emu/built-in.o arch/parisc/kernel/init_task.o  kernel/bu=
i
lt-in.o  mm/built-in.o  fs/built-in.o  ipc/built-in.o  security/built-in.=
o 
crypto/built-in.o  block/built-in.o  lib/lib.a  arch/par
isc/lib/lib.a `gcc -print-libgcc-file-name`  lib/built-in.o 
arch/parisc/lib/built-in.o `gcc -print-libgcc-file-name`  drivers/built
-in.o  sound/built-in.o  arch/parisc/oprofile/built-in.o  net/built-in.o
WARNING: arch/parisc/kernel/built-in.o(.text.alloc_pa_dev+0x150): Section=

mismatch: reference to .init.text:parisc_hardware_descript
ion (after 'alloc_pa_dev')
WARNING: arch/parisc/kernel/built-in.o(.data.read_mostly+0xc8): Section
mismatch: reference to .init.text:processor_probe (between '
cpu_driver' and 'boot_cpu_data')
WARNING: drivers/built-in.o(.text.lba_fixup_bus+0x3c): Section mismatch:
reference to .init.text:pci_read_bridge_bases (after 'lba_f
ixup_bus')
rm -f .old_version

Sorry to haven't any more much time to do more.

J.=0A---=0AFree iPod Nano 2GB with every Scarlet One Unlimited, 50GB, 6 M=
bps, from EUR 39,95

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On Sun, May 20, 2007 at 11:34:46AM -0400, John David Anglin wrote:
> > > -#define ASM_EAGAIN "11"
> > > +#define ASM_EAGAIN "-11"
> 
> If the check is wrong, I would change the compare instead of the
> define.  Error numbers are normally defined as positive values.
> 

Then, what about this patch?

--- ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h.orig	2007-05-20 23:15:37.000000000 +0200
+++ ports/sysdeps/unix/sysv/linux/hppa/bits/atomic.h	2007-05-20 23:15:59.000000000 +0200
@@ -71,10 +71,10 @@
 	"copy	%5, %%r24			\n\t"			\
 	"ble	" LWS "(%%sr2, %%r0)		\n\t"			\
 	"ldi	" LWS_CAS ", %%r20		\n\t"			\
+        "sub	%%r0, %%r21, %%r21		\n\t"			\
 	"cmpib,=,n " ASM_EAGAIN ",%%r21,0b	\n\t"			\
 	"nop					\n\t"			\
 	"stw	%%r28, %0			\n\t"			\
-        "sub	%%r0, %%r21, %%r21		\n\t"			\
 	"stw	%%r21, %1			\n\t"			\
 	: "=m" (lws_ret), "=m" (lws_errno), "=m" (*mem)			\
         : "r" (mem), "r" (oldval), "r" (newval)				\

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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Subject: Re: [parisc-linux] merge 2.6.22-rc2 ftbfs
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On Fri, May 25, 2007 at 11:54:53AM +0200, Joel Soete wrote:
> Hello Kyle,
> 

Hey Joel,

Thanks! Sorry, I already had these fixes but forgot to push out my tree 
with these build fixes in them (but they're identical).

Nice catch,
	Kyle
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> I just tried this on an Altix from the test lab, and ia32 bash just
> started.

I don't have any native x86 binaries on my Madison-based testbox, so my
test case was to compile a simple program that counted total length of
argument strings on an x86 box, and copy it to my ia64 box.  So that I
wouldn't have to copy over a bunch of libraries too, I compiled it
with -static.  This is the test case that "hung" my system (re-running
it today from /dev/tty1 instead of from an xterm, I see that it actually
oopsed in rb_next()).  I wasn't even running with a long arglist.  Just
"*" for my home directory (19 files/directories =3D ~170 bytes).

-Tony

My test program.  Compile on ia32 box with "cc -static -o args args.c"

---- begin args.c ----
main(int argc, char **argv)
{
	int n;

	printf("argc =3D %d\n", argc);

	n =3D 0;
	while (--argc)
		n +=3D strlen(*++argv);

	printf("bytes =3D %d\n", n);
}
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Xref: news.gmane.org gmane.linux.ports.parisc:24568

Hi Kyle,

this patch allows the current kernel to build the lasi_82596 driver.

Please apply, Helge

Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/drivers/net/lasi_82596.c b/drivers/net/lasi_82596.c
index 6b49fc4..741780e 100644
--- a/drivers/net/lasi_82596.c
+++ b/drivers/net/lasi_82596.c
@@ -83,6 +83,7 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/bitops.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/io.h>
 #include <asm/pgtable.h>
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Subject: [parisc-linux] Status of 2.6.22-rc3 ?
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Xref: news.gmane.org gmane.linux.ports.parisc:24569

Hi everyone,

I just wanted to ask if someone of you managed to boot a parisc 2.6.22-rc3 kernel yet ?
I'm using Linus' current tree and merged into this one Kyles' latest patches and built the kernel.

I was able to build a kernel after I patched lasi_82596.c (see my patch I sent out just before).
I see quite some warnings though:

WARNING: arch/parisc/kernel/built-in.o(.data.read_mostly+0xd8): Section mismatch: reference to .init.text:processor_probe (between 'cpu_driver' and 'boot_cpu_data')
WARNING: arch/parisc/kernel/built-in.o(.text.alloc_pa_dev+0x140): Section mismatch: reference to .init.text:parisc_hardware_description (after 'alloc_pa_dev')
WARNING: kernel/built-in.o(.text.kthreadd+0x14): Section mismatch: reference to .init.text:kthreadd_setup (after 'kthreadd')
WARNING: drivers/built-in.o(.text.ccio_probe+0xdc): Section mismatch: reference to .init.text:ccio_init_resources (after 'ccio_probe')
WARNING: drivers/built-in.o(.text.eisa_probe+0x220): Section mismatch: reference to .init.text:eisa_root_register (after 'eisa_probe')
WARNING: drivers/built-in.o(.text.superio_serial_init+0x78): Section mismatch: reference to .init.text:early_serial_setup (after 'superio_serial_init')
WARNING: drivers/built-in.o(.text.superio_serial_init+0xa4): Section mismatch: reference to .init.text:early_serial_setup (after 'superio_serial_init')
WARNING: drivers/built-in.o(.text.sticore_pci_init+0xac): Section mismatch: reference to .init.text:sti_try_rom_generic (after 'sticore_pci_init')
WARNING: drivers/built-in.o(.text.sticore_pci_init+0xe4): Section mismatch: reference to .init.text:sticore_check_for_default_sti (after 'sticore_pci_init')
WARNING: drivers/built-in.o(.text.sti_get_rom+0x18): Section mismatch: reference to .init.text:sti_init_roms (after 'sti_get_rom')
WARNING: drivers/built-in.o(.text.parport_init_chip+0xbc): Section mismatch: reference to .init.data:parport_count (after 'parport_init_chip')
WARNING: drivers/built-in.o(.text.parport_init_chip+0xc0): Section mismatch: reference to .init.data:parport_count (after 'parport_init_chip')
WARNING: drivers/built-in.o(.text.parport_init_chip+0xc8): Section mismatch: reference to .init.data:parport_count (after 'parport_init_chip')

I just disabled then the freeing of inital-memory (just in case!), and as such booting to init process went OK.
But then init started udev and it just crashes reproduceably:
->
Synthesizing the initial hotplug events...done.
Waiting for /dev to be fully populated...<2>Backtrace:
 [<1011326c>] unwind_frame_regs+0x48/0x220
 [<10113578>] unwind_once+0x10/0x48
 [<1011284c>] get_wchan+0x2c/0x68
 [<101b9308>] do_task_stat+0x24c/0x500
 [<101b4f34>] proc_info_read+0x88/0x108
 [<10179db0>] vfs_read+0x8c/0x138
 [<1017a10c>] sys_read+0x5c/0xa4
 [<1010c080>] syscall_exit+0x0/0x28
BUG: spinlock recursion on CPU#0, udevd/560
 lock: 1056e08c, .magic: dead4ead, .owner: udevd/560, .owner_cpu: 0
Backtrace:
 [<1026c5d0>] _raw_spin_lock+0x50/0xa4
 [<101076cc>] parisc_terminate+0x58/0xe8
 [<10107cbc>] handle_interruption+0x560/0x58c
 [<1010b080>] intr_check_sig+0x0/0x34
BUG: spinlock lockup on CPU#0, udevd/560, 1056e08c                                                                                           

Anyone sees this as well ?
Is anyone testing head development kernels (e.g. 2.6.22-rc3) at all ?

Best regards,
Helge


PS: I'm not really happy with our current development model. IMHO it's too complicated to get to a building tree and thus too few people (anyone?) test the latest kernels...
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Subject: Re: [PATCH] [PARISC] fix lasi_82596 build
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On Sun, May 27, 2007 at 02:27:23PM +0200, Helge Deller wrote:
> Hi Kyle,
> 
> this patch allows the current kernel to build the lasi_82596 driver.
> 
> Please apply, Helge
> 

applied, thanks helge!



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Subject: [parisc-linux] [PATCH] [PARISC] fix section mismatch in parport_gsc
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Xref: news.gmane.org gmane.linux.ports.parisc:24571

Hi Kyle,

this patch fixes the section mismatch in parport_gsc.c:
WARNING: drivers/built-in.o(.text.parport_init_chip+0xc8): Section mismatch: reference to .init.data:parport_count (after 'parport_init_chip')

Please apply, Helge

    Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
index 17bf993..43652ba 100644
--- a/drivers/parport/parport_gsc.c
+++ b/drivers/parport/parport_gsc.c
@@ -350,7 +350,7 @@ struct parport *__devinit parport_gsc_pr
 
 #define PARPORT_GSC_OFFSET 0x800
 
-static int __initdata parport_count;
+static int __devinitdata parport_count;
 
 static int __devinit parport_init_chip(struct parisc_device *dev)
 {
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Subject: [parisc-linux] [PATCH] [PARISC] fix section mismatch in parisc STI
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Xref: news.gmane.org gmane.linux.ports.parisc:24572

Hi Kyle,

this patch fixes various section mismatches in the sti graphics driver:
WARNING: drivers/built-in.o(.text.sticore_pci_init+0xac): Section mismatch: reference to .init.text:sti_try_rom_generic (after 'sticore_pci_init')
WARNING: drivers/built-in.o(.text.sticore_pci_init+0xe4): Section mismatch: reference to .init.text:sticore_check_for_default_sti (after 'sticore_pci_init')
WARNING: drivers/built-in.o(.text.sti_get_rom+0x18): Section mismatch: reference to .init.text:sti_init_roms (after 'sti_get_rom')
(and others).

Basically it's a replacement of __init by __devinit.
Please apply, Helge

    Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index 717b360..f458a43 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -240,7 +240,7 @@ static void sti_flush(unsigned long from
 	flush_icache_range(from, from+len);
 }
 
-void __init
+void __devinit
 sti_rom_copy(unsigned long base, unsigned long count, void *dest)
 {
 	unsigned long dest_len = count;
@@ -269,7 +269,7 @@ sti_rom_copy(unsigned long base, unsigne
 static char default_sti_path[21] __read_mostly;
 
 #ifndef MODULE
-static int __init sti_setup(char *str)
+static int __devinit sti_setup(char *str)
 {
 	if (str)
 		strlcpy (default_sti_path, str, sizeof (default_sti_path));
@@ -288,12 +288,12 @@ __setup("sti=", sti_setup);
 
 
 
-static char __initdata	*font_name[MAX_STI_ROMS] = { "VGA8x16", };
-static int __initdata	font_index[MAX_STI_ROMS], 
-			font_height[MAX_STI_ROMS],
-			font_width[MAX_STI_ROMS];
+static char __devinitdata	*font_name[MAX_STI_ROMS] = { "VGA8x16", };
+static int __devinitdata	font_index[MAX_STI_ROMS], 
+				font_height[MAX_STI_ROMS],
+				font_width[MAX_STI_ROMS];
 #ifndef MODULE
-static int __init sti_font_setup(char *str)
+static int __devinit sti_font_setup(char *str)
 {
 	char *x;
 	int i = 0;
@@ -346,7 +346,7 @@ __setup("sti_font=", sti_font_setup);
 
 
 	
-static void __init
+static void __devinit
 sti_dump_globcfg(struct sti_glob_cfg *glob_cfg, unsigned int sti_mem_request)
 {
 	struct sti_glob_cfg_ext *cfg;
@@ -386,7 +386,7 @@ sti_dump_globcfg(struct sti_glob_cfg *gl
 		cfg->sti_mem_addr, sti_mem_request));
 }
 
-static void __init
+static void __devinit
 sti_dump_outptr(struct sti_struct *sti)
 {
 	DPRINTK((KERN_INFO
@@ -400,7 +400,7 @@ sti_dump_outptr(struct sti_struct *sti)
 		 sti->outptr.attributes));
 }
 
-static int __init
+static int __devinit
 sti_init_glob_cfg(struct sti_struct *sti,
 	    unsigned long rom_address, unsigned long hpa)
 {
@@ -482,7 +482,7 @@ sti_init_glob_cfg(struct sti_struct *sti
 }
 
 #ifdef CONFIG_FB
-struct sti_cooked_font * __init
+struct sti_cooked_font * __devinit
 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
 {
 	const struct font_desc *fbfont;
@@ -538,14 +538,14 @@ sti_select_fbfont(struct sti_cooked_rom 
 	return cooked_font;
 }
 #else
-struct sti_cooked_font * __init
+struct sti_cooked_font * __devinit
 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
 {
 	return NULL;
 }
 #endif
 
-struct sti_cooked_font * __init
+struct sti_cooked_font * __devinit
 sti_select_font(struct sti_cooked_rom *rom,
 	    int (*search_font_fnc) (struct sti_cooked_rom *,int,int) )
 {
@@ -572,7 +572,7 @@ sti_select_font(struct sti_cooked_rom *r
 }
 
 
-static void __init 
+static void __devinit 
 sti_dump_rom(struct sti_rom *rom)
 {
 	printk(KERN_INFO "    id %04x-%04x, conforms to spec rev. %d.%02x\n",
@@ -590,7 +590,7 @@ sti_dump_rom(struct sti_rom *rom)
 }
 
 
-static int __init 
+static int __devinit 
 sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
 			struct sti_rom *raw_rom)
 {
@@ -625,7 +625,7 @@ sti_cook_fonts(struct sti_cooked_rom *co
 }
 
 
-static int __init 
+static int __devinit 
 sti_search_font(struct sti_cooked_rom *rom, int height, int width)
 {
 	struct sti_cooked_font *font;
@@ -642,7 +642,7 @@ sti_search_font(struct sti_cooked_rom *r
 #define BMODE_RELOCATE(offset)		offset = (offset) / 4;
 #define BMODE_LAST_ADDR_OFFS		0x50
 
-static void * __init
+static void * __devinit
 sti_bmode_font_raw(struct sti_cooked_font *f)
 {
 	unsigned char *n, *p, *q;
@@ -660,7 +660,7 @@ sti_bmode_font_raw(struct sti_cooked_fon
 	return n + 3;
 }
 
-static void __init
+static void __devinit
 sti_bmode_rom_copy(unsigned long base, unsigned long count, void *dest)
 {
 	unsigned long dest_len = count;
@@ -675,7 +675,7 @@ sti_bmode_rom_copy(unsigned long base, u
 	sti_flush(dest_start, dest_len);
 }
 
-static struct sti_rom * __init
+static struct sti_rom * __devinit
 sti_get_bmode_rom (unsigned long address)
 {
 	struct sti_rom *raw;
@@ -711,7 +711,7 @@ sti_get_bmode_rom (unsigned long address
 	return raw;
 }
 
-struct sti_rom * __init
+struct sti_rom * __devinit
 sti_get_wmode_rom (unsigned long address)
 {
 	struct sti_rom *raw;
@@ -727,7 +727,7 @@ sti_get_wmode_rom (unsigned long address
 	return raw;
 }
 
-int __init
+int __devinit
 sti_read_rom(int wordmode, struct sti_struct *sti, unsigned long address)
 {
 	struct sti_cooked_rom *cooked;
@@ -783,7 +783,7 @@ out_err:
 	return 0;
 }
 
-static struct sti_struct * __init
+static struct sti_struct * __devinit
 sti_try_rom_generic(unsigned long address, unsigned long hpa, struct pci_dev *pd)
 {
 	struct sti_struct *sti;
@@ -898,7 +898,7 @@ out_err:
 	return NULL;
 }
 
-static void __init sticore_check_for_default_sti(struct sti_struct *sti, char *path)
+static void __devinit sticore_check_for_default_sti(struct sti_struct *sti, char *path)
 {
 	if (strcmp (path, default_sti_path) == 0)
 		default_sti = sti;
@@ -909,7 +909,7 @@ static void __init sticore_check_for_def
  * in the additional address field addr[1] while on
  * older Systems the PDC stores it in page0->proc_sti 
  */
-static int __init sticore_pa_init(struct parisc_device *dev)
+static int __devinit sticore_pa_init(struct parisc_device *dev)
 {
 	char pa_path[21];
 	struct sti_struct *sti = NULL;
@@ -1015,7 +1015,7 @@ static struct parisc_driver pa_sti_drive
 
 static int sticore_initialized __read_mostly;
 
-static void __init sti_init_roms(void)
+static void __devinit sti_init_roms(void)
 {
 	if (sticore_initialized)
 		return;
_______________________________________________
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http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: Re: [PATCH] [PARISC] fix section mismatch in parport_gsc
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On Sun, May 27, 2007 at 06:07:25PM +0200, Helge Deller wrote:
> Hi Kyle,
> 
> this patch fixes the section mismatch in parport_gsc.c:
> WARNING: drivers/built-in.o(.text.parport_init_chip+0xc8): Section mismatch: reference to .init.data:parport_count (after 'parport_init_chip')
> 
> Please apply, Helge
> 

applied



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Subject: Re: [PATCH] [PARISC] fix section mismatch in parisc STI video drivers
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On Sun, May 27, 2007 at 06:10:25PM +0200, Helge Deller wrote:
> Please apply, Helge
> 
>     Signed-off-by: Helge Deller <deller@gmx.de>
> 

applied after fixing trailing whitespace



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Xref: news.gmane.org gmane.linux.ports.parisc:24575

Hi Kyle,

this fixes section mismatches in ccio-dma.
Additionally, mark parisc_device_id table const.

Please apply, Helge

    Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 1459ca8..b3c4dbf 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1227,7 +1227,7 @@ ccio_get_iotlb_size(struct parisc_device
 #endif /* 0 */
 
 /* We *can't* support JAVA (T600). Venture there at your own risk. */
-static struct parisc_device_id ccio_tbl[] = {
+static const struct parisc_device_id ccio_tbl[] = {
 	{ HPHW_IOA, HVERSION_REV_ANY_ID, U2_IOA_RUNWAY, 0xb }, /* U2 */
 	{ HPHW_IOA, HVERSION_REV_ANY_ID, UTURN_IOA_RUNWAY, 0xb }, /* UTurn */
 	{ 0, }
@@ -1370,7 +1370,7 @@ ccio_ioc_init(struct ioc *ioc)
 	}
 }
 
-static void
+static void __init
 ccio_init_resource(struct resource *res, char *name, void __iomem *ioaddr)
 {
 	int result;
@@ -1537,7 +1537,7 @@ int ccio_request_resource(const struct p
  * If so, initialize the chip and tell other partners in crime they
  * have work to do.
  */
-static int ccio_probe(struct parisc_device *dev)
+static int __init ccio_probe(struct parisc_device *dev)
 {
 	int i;
 	struct ioc *ioc, **ioc_p = &ioc_list;
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Subject: Re: [parisc-linux] [PATCH] [PARISC] fix section mismatch in ccio-dma
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On Sun, May 27, 2007 at 06:20:47PM +0200, Helge Deller wrote:
> Hi Kyle,
> 
> this fixes section mismatches in ccio-dma.
> Additionally, mark parisc_device_id table const.
> 
> Please apply, Helge
> 

applied



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Xref: news.gmane.org gmane.linux.ports.parisc:24577

Hi Kyle,

this patch fixes two section mismatches in parisc/kernel:
WARNING: arch/parisc/kernel/built-in.o(.data.read_mostly+0xd8): Section mismatch: reference to .init.text:processor_probe (between 'cpu_driver' and 'boot_cpu_data')
WARNING: arch/parisc/kernel/built-in.o(.text.alloc_pa_dev+0x140): Section mismatch: reference to .init.text:parisc_hardware_description (after 'alloc_pa_dev')

Additionally, mark some tables as constants.

Please apply, Helge

    Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index e365f03..04848b2 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -38,7 +38,7 @@
  *	so don't reference this table after starting the init process
  */
  
-static struct hp_hardware hp_hardware_list[] __initdata = {
+static struct hp_hardware hp_hardware_list[] __devinitdata = {
 	{HPHW_NPROC,0x01,0x4,0x0,"Indigo (840, 930)"},
 	{HPHW_NPROC,0x8,0x4,0x01,"Firefox(825,925)"},
 	{HPHW_NPROC,0xA,0x4,0x01,"Top Gun (835,834,935,635)"},
@@ -1219,7 +1219,7 @@ static struct hp_cpu_type_mask {
 	unsigned short model;
 	unsigned short mask;
 	enum cpu_type cpu;
-} hp_cpu_type_mask_list[] __initdata = {
+} hp_cpu_type_mask_list[] __devinitdata = {
 
 	{ 0x0000, 0x0ff0, pcx    },  /* 0x0000 - 0x000f */
 	{ 0x0048, 0x0ff0, pcxl   },  /* 0x0040 - 0x004f */
@@ -1300,7 +1300,7 @@ static struct hp_cpu_type_mask {
 	{ 0x0000, 0x0000, pcx    }	/* terminate table */
 };
 
-char *cpu_name_version[][2] = {
+const char * const cpu_name_version[][2] = {
 	[pcx]	= { "PA7000 (PCX)",	"1.0" },
 	[pcxs]	= { "PA7000 (PCX-S)",	"1.1a" },
 	[pcxt]	= { "PA7100 (PCX-T)",	"1.1b" },
@@ -1316,7 +1316,7 @@ char *cpu_name_version[][2] = {
 	[mako2] = { "PA8900 (Shortfin)",	"2.0" }
 };
 
-const char * __init
+const char * __devinit
 parisc_hardware_description(struct parisc_device_id *id)
 {
 	struct hp_hardware *listptr;
@@ -1355,7 +1355,7 @@ parisc_hardware_description(struct paris
 
 
 /* Interpret hversion (ret[0]) from PDC_MODEL(4)/PDC_MODEL_INFO(0) */
-enum cpu_type __init
+enum cpu_type __cpuinit
 parisc_get_cpu_type(unsigned long hversion)
 {
 	struct hp_cpu_type_mask *ptr;
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 27f9553..549f548 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -76,7 +76,7 @@ extern int update_cr16_clocksource(void)
  * (return 1).  If so, initialize the chip and tell other partners in crime 
  * they have work to do.
  */
-static int __init processor_probe(struct parisc_device *dev)
+static int __cpuinit processor_probe(struct parisc_device *dev)
 {
 	unsigned long txn_addr;
 	unsigned long cpuid;
@@ -381,12 +381,12 @@ show_cpuinfo (struct seq_file *m, void *
 	return 0;
 }
 
-static struct parisc_device_id processor_tbl[] __read_mostly = {
+static const struct parisc_device_id processor_tbl[] = {
 	{ HPHW_NPROC, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, SVERSION_ANY_ID },
 	{ 0, }
 };
 
-static struct parisc_driver cpu_driver __read_mostly = {
+static struct parisc_driver cpu_driver = {
 	.name		= "CPU",
 	.id_table	= processor_tbl,
 	.probe		= processor_probe
diff --git a/include/asm-parisc/hardware.h b/include/asm-parisc/hardware.h
index daf58dd..4e96268 100644
--- a/include/asm-parisc/hardware.h
+++ b/include/asm-parisc/hardware.h
@@ -35,7 +35,7 @@ enum cpu_type {
 	mako2	= 12  /* pa8900		pa 2.0  */
 };
 
-extern char *cpu_name_version[][2]; /* mapping from enum cpu_type to strings */
+extern const char * const cpu_name_version[][2]; /* mapping from enum cpu_type to strings */
 
 struct parisc_driver;
 
diff --git a/include/asm-parisc/processor.h b/include/asm-parisc/processor.h
index 0052dc9..6b294fb 100644
--- a/include/asm-parisc/processor.h
+++ b/include/asm-parisc/processor.h
@@ -69,8 +69,8 @@ struct system_cpuinfo_parisc {
 		char   sys_model_name[81]; /* PDC-ROM returnes this model name */
 	} pdc;
 
-	char		*cpu_name;	/* e.g. "PA7300LC (PCX-L2)" */
-	char		*family_name;	/* e.g. "1.1e" */
+	const char	*cpu_name;	/* e.g. "PA7300LC (PCX-L2)" */
+	const char	*family_name;	/* e.g. "1.1e" */
 };
 
 
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Xref: news.gmane.org gmane.linux.ports.parisc:24578

On Sun, May 27, 2007 at 07:30:36PM +0200, Helge Deller wrote:
> Hi Kyle,
> 
> this patch fixes two section mismatches in parisc/kernel:
> WARNING: arch/parisc/kernel/built-in.o(.data.read_mostly+0xd8): Section mismatch: reference to .init.text:processor_probe (between 'cpu_driver' and 'boot_cpu_data')
> WARNING: arch/parisc/kernel/built-in.o(.text.alloc_pa_dev+0x140): Section mismatch: reference to .init.text:parisc_hardware_description (after 'alloc_pa_dev')
> 
> Additionally, mark some tables as constants.
> 
> Please apply, Helge
> 

applied, thanks



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Subject: [parisc-linux] [PATCH] [PARISC] fix section mismatch in parisc eisa
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Hi Kyle,

this patch fixes the following section mismatch (EISA cards should be hotplug aware, but the EISA bus itself shouldn't):
WARNING: drivers/built-in.o(.text.eisa_probe+0x220): Section mismatch: reference to .init.text:eisa_root_register (after 'eisa_probe')

Please apply, 
Helge

    Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 309076b..771cef5 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -307,7 +307,7 @@ static void init_eisa_pic(void)
 
 #define is_mongoose(dev) (dev->id.sversion == 0x00076)
 
-static int __devinit eisa_probe(struct parisc_device *dev)
+static int __init eisa_probe(struct parisc_device *dev)
 {
 	int i, result;
 
@@ -387,7 +387,7 @@ static int __devinit eisa_probe(struct p
 	return 0;
 }
 
-static struct parisc_device_id eisa_tbl[] = {
+static const struct parisc_device_id eisa_tbl[] = {
 	{ HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00076 }, /* Mongoose */
 	{ HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00090 }, /* Wax EISA */
 	{ 0, }
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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] [PATCH] [PARISC] fix section mismatch in superio
	serial drivers
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This patch fixes two section mismatches in superio serial setup:
WARNING: drivers/built-in.o(.text.superio_serial_init+0x78): Section mismatch: reference to .init.text:early_serial_setup (after 'superio_serial_init')
WARNING: drivers/built-in.o(.text.superio_serial_init+0xa4): Section mismatch: reference to .init.text:early_serial_setup (after 'superio_serial_init')

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 1fd97f7..a708c32 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -389,7 +389,7 @@ int superio_fixup_irq(struct pci_dev *pc
 	return local_irq;
 }
 
-static void __devinit superio_serial_init(void)
+static void __init superio_serial_init(void)
 {
 #ifdef CONFIG_SERIAL_8250
 	int retval;
@@ -423,7 +423,7 @@ static void __devinit superio_serial_ini
 }
 
 
-static void __devinit superio_parport_init(void)
+static void __init superio_parport_init(void)
 {
 #ifdef CONFIG_PARPORT_PC
 	if (!parport_pc_probe_port(sio_dev.pp_base,
@@ -450,7 +450,7 @@ static void superio_fixup_pci(struct pci
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, superio_fixup_pci);
 
 
-static int __devinit
+static int __init
 superio_probe(struct pci_dev *dev, const struct pci_device_id *id)
 {
 	struct superio_device *sio = &sio_dev;
@@ -485,7 +485,7 @@ superio_probe(struct pci_dev *dev, const
 	return -ENODEV;
 }
 
-static struct pci_device_id superio_tbl[] = {
+static const struct pci_device_id superio_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_LIO) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_USB) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415) },
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [parisc-linux] [PATCH] [PARISC] fix section mismatch in parisc eisa driver
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On Sun, May 27, 2007 at 07:57:11PM +0200, Helge Deller wrote:
> Hi Kyle,
> 
> this patch fixes the following section mismatch (EISA cards should be hotplug aware, but the EISA bus itself shouldn't):
> WARNING: drivers/built-in.o(.text.eisa_probe+0x220): Section mismatch: reference to .init.text:eisa_root_register (after 'eisa_probe')
> 
> Please apply, 
> Helge
> 

applied



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Subject: Re: [parisc-linux] [PATCH] [PARISC] fix section mismatch in superio serial drivers
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On Sun, May 27, 2007 at 08:38:47PM +0200, Helge Deller wrote:
> This patch fixes two section mismatches in superio serial setup:
> WARNING: drivers/built-in.o(.text.superio_serial_init+0x78): Section mismatch: reference to .init.text:early_serial_setup (after 'superio_serial_init')
> WARNING: drivers/built-in.o(.text.superio_serial_init+0xa4): Section mismatch: reference to .init.text:early_serial_setup (after 'superio_serial_init')
> 

applied



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Subject: [parisc-linux] [PATCH] [PARISC] Wire up
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[PARISC] Wire up utimensat/signalfd/timerfd/eventfd syscalls and mark select/fadvise64/utimes to be ignored by checksyscalls.sh

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 7e04db6..627f3c2 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -401,6 +401,11 @@
 	ENTRY_COMP(statfs64)
 	ENTRY_COMP(fstatfs64)
 	ENTRY_COMP(kexec_load)		/* 300 */
+	ENTRY_COMP(utimensat)
+	ENTRY_COMP(signalfd)
+	ENTRY_COMP(timerfd)
+	ENTRY_SAME(eventfd)
+
 	/* Nothing yet */
 
 #undef ENTRY_SAME
diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
index 693743f..f74099b 100644
--- a/include/asm-parisc/unistd.h
+++ b/include/asm-parisc/unistd.h
@@ -793,8 +793,18 @@
 #define __NR_statfs64		(__NR_Linux + 298)
 #define __NR_fstatfs64		(__NR_Linux + 299)
 #define __NR_kexec_load		(__NR_Linux + 300)
+#define __NR_utimensat		(__NR_Linux + 301)
+#define __NR_signalfd		(__NR_Linux + 302)
+#define __NR_timerfd		(__NR_Linux + 303)
+#define __NR_eventfd		(__NR_Linux + 304)
+
+#define __NR_Linux_syscalls	(__NR_eventfd + 1)
+
+
+#define __IGNORE_select		/* newselect */
+#define __IGNORE_fadvise64	/* fadvise64_64 */
+#define __IGNORE_utimes		/* utime */
 
-#define __NR_Linux_syscalls     (__NR_kexec_load + 1)
 
 #define HPUX_GATEWAY_ADDR       0xC0000004
 #define LINUX_GATEWAY_ADDR      0x100

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Subject: Re: [PATCH] [PARISC] Wire up utimensat/signalfd/timerfd/eventfd syscalls
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On Sun, May 27, 2007 at 09:15:49PM +0200, Helge Deller wrote:
> [PARISC] Wire up utimensat/signalfd/timerfd/eventfd syscalls and mark select/fadvise64/utimes to be ignored by checksyscalls.sh
> 

applied, thanks



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Subject: [parisc-linux] [PATCH] [PARISC] Drop -traditional for
	arch/parisc/kernel
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Xref: news.gmane.org gmane.linux.ports.parisc:24585

[PARISC] Drop -traditional for arch/parisc/kernel

Follows i386 & x86_64. Clean up whitespace indenting as well.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 27827bc..cdd0aa8 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -2,12 +2,9 @@
 # Makefile for arch/parisc/kernel
 #
 
-extra-y			:= init_task.o head.o vmlinux.lds
+extra-y		:= init_task.o head.o vmlinux.lds
 
-AFLAGS_entry.o	:= -traditional
-AFLAGS_pacache.o := -traditional

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On Sun, May 27, 2007 at 09:49:21PM +0200, Helge Deller wrote:
> [PARISC] Drop -traditional for arch/parisc/kernel
> 
> Follows i386 & x86_64. Clean up whitespace indenting as well.
> 

Er, is this simply "because they did it" or is there some justification
behind it?

Regards,
	Kyle



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Subject: [parisc-linux] Re: [PATCH] [PARISC] Drop -traditional for
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On Sunday 27 May 2007, Kyle McMartin wrote:
> On Sun, May 27, 2007 at 09:49:21PM +0200, Helge Deller wrote:
> > [PARISC] Drop -traditional for arch/parisc/kernel
> > 
> > Follows i386 & x86_64. Clean up whitespace indenting as well.
> > 
> 
> Er, is this simply "because they did it" or is there some justification
> behind it?

Just "because they did".

Helge
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: [PATCH] [PARISC] Drop -traditional for arch/parisc/kernel
Date: Sun, 27 May 2007 15:52:47 -0400
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To: Helge Deller <deller@gmx.de>
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On Sun, May 27, 2007 at 09:51:49PM +0200, Helge Deller wrote:
> On Sunday 27 May 2007, Kyle McMartin wrote:
> > On Sun, May 27, 2007 at 09:49:21PM +0200, Helge Deller wrote:
> > > [PARISC] Drop -traditional for arch/parisc/kernel
> > > 
> > > Follows i386 & x86_64. Clean up whitespace indenting as well.
> > > 
> > 
> > Er, is this simply "because they did it" or is there some justification
> > behind it?
> 
> Just "because they did".
> 

Ok, I'll go look at why and get back to you.

Cheers,
	Kyle



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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Status of 2.6.22-rc3 ?
Date: Sun, 27 May 2007 16:02:07 -0400
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On Sun, May 27, 2007 at 02:38:57PM +0200, Helge Deller wrote:
> Synthesizing the initial hotplug events...done.
> Waiting for /dev to be fully populated...<2>Backtrace:
>  [<1011326c>] unwind_frame_regs+0x48/0x220
>  [<10113578>] unwind_once+0x10/0x48
>  [<1011284c>] get_wchan+0x2c/0x68
>  [<101b9308>] do_task_stat+0x24c/0x500
>  [<101b4f34>] proc_info_read+0x88/0x108
>  [<10179db0>] vfs_read+0x8c/0x138
>  [<1017a10c>] sys_read+0x5c/0xa4
>  [<1010c080>] syscall_exit+0x0/0x28
> BUG: spinlock recursion on CPU#0, udevd/560
>  lock: 1056e08c, .magic: dead4ead, .owner: udevd/560, .owner_cpu: 0
> Backtrace:
>  [<1026c5d0>] _raw_spin_lock+0x50/0xa4
>  [<101076cc>] parisc_terminate+0x58/0xe8
>  [<10107cbc>] handle_interruption+0x560/0x58c
>  [<1010b080>] intr_check_sig+0x0/0x34
> BUG: spinlock lockup on CPU#0, udevd/560, 1056e08c

What compiler version did you use to build?

Cheers,
	Kyle



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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Status of 2.6.22-rc3 ?
Date: Sun, 27 May 2007 22:17:33 +0200
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On Sunday 27 May 2007, Kyle McMartin wrote:
> On Sun, May 27, 2007 at 02:38:57PM +0200, Helge Deller wrote:
> > Synthesizing the initial hotplug events...done.
> > Waiting for /dev to be fully populated...<2>Backtrace:
> >  [<1011326c>] unwind_frame_regs+0x48/0x220
> >  [<10113578>] unwind_once+0x10/0x48
> >  [<1011284c>] get_wchan+0x2c/0x68
> >  [<101b9308>] do_task_stat+0x24c/0x500
> >  [<101b4f34>] proc_info_read+0x88/0x108
> >  [<10179db0>] vfs_read+0x8c/0x138
> >  [<1017a10c>] sys_read+0x5c/0xa4
> >  [<1010c080>] syscall_exit+0x0/0x28
> > BUG: spinlock recursion on CPU#0, udevd/560
> >  lock: 1056e08c, .magic: dead4ead, .owner: udevd/560, .owner_cpu: 0
> > Backtrace:
> >  [<1026c5d0>] _raw_spin_lock+0x50/0xa4
> >  [<101076cc>] parisc_terminate+0x58/0xe8
> >  [<10107cbc>] handle_interruption+0x560/0x58c
> >  [<1010b080>] intr_check_sig+0x0/0x34
> > BUG: spinlock lockup on CPU#0, udevd/560, 1056e08c
> 
> What compiler version did you use to build?

hppa-linux-gcc (GCC) 3.3.4 (Debian 1:3.3.4-11)
(cross-compiling from i386 -> parisc 32bit)
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From - Thu Nov 08 21:35:59 2018
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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Status of 2.6.22-rc3 ?
Date: Sun, 27 May 2007 16:18:29 -0400
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On Sun, May 27, 2007 at 10:17:33PM +0200, Helge Deller wrote:
> On Sunday 27 May 2007, Kyle McMartin wrote:
> > On Sun, May 27, 2007 at 02:38:57PM +0200, Helge Deller wrote:
> > > Synthesizing the initial hotplug events...done.
> > > Waiting for /dev to be fully populated...<2>Backtrace:
> > >  [<1011326c>] unwind_frame_regs+0x48/0x220
> > >  [<10113578>] unwind_once+0x10/0x48
> > >  [<1011284c>] get_wchan+0x2c/0x68
> > >  [<101b9308>] do_task_stat+0x24c/0x500
> > >  [<101b4f34>] proc_info_read+0x88/0x108
> > >  [<10179db0>] vfs_read+0x8c/0x138
> > >  [<1017a10c>] sys_read+0x5c/0xa4
> > >  [<1010c080>] syscall_exit+0x0/0x28
> > > BUG: spinlock recursion on CPU#0, udevd/560
> > >  lock: 1056e08c, .magic: dead4ead, .owner: udevd/560, .owner_cpu: 0
> > > Backtrace:
> > >  [<1026c5d0>] _raw_spin_lock+0x50/0xa4
> > >  [<101076cc>] parisc_terminate+0x58/0xe8
> > >  [<10107cbc>] handle_interruption+0x560/0x58c
> > >  [<1010b080>] intr_check_sig+0x0/0x34
> > > BUG: spinlock lockup on CPU#0, udevd/560, 1056e08c
> > 
> > What compiler version did you use to build?
> 
> hppa-linux-gcc (GCC) 3.3.4 (Debian 1:3.3.4-11)
> (cross-compiling from i386 -> parisc 32bit)
> 

Ok. I'll try to get a machine plugged in this week and take a look.

Hmm, is spinlock debugging enabled? Does it make a difference if you
turn that off?



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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Status of 2.6.22-rc3 ?
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On Sunday 27 May 2007, you wrote:
> On Sun, May 27, 2007 at 10:17:33PM +0200, Helge Deller wrote:
> > On Sunday 27 May 2007, Kyle McMartin wrote:
> > > On Sun, May 27, 2007 at 02:38:57PM +0200, Helge Deller wrote:
> > > > Synthesizing the initial hotplug events...done.
> > > > Waiting for /dev to be fully populated...<2>Backtrace:
> > > >  [<1011326c>] unwind_frame_regs+0x48/0x220
> > > >  [<10113578>] unwind_once+0x10/0x48
> > > >  [<1011284c>] get_wchan+0x2c/0x68
> > > >  [<101b9308>] do_task_stat+0x24c/0x500
> > > >  [<101b4f34>] proc_info_read+0x88/0x108
> > > >  [<10179db0>] vfs_read+0x8c/0x138
> > > >  [<1017a10c>] sys_read+0x5c/0xa4
> > > >  [<1010c080>] syscall_exit+0x0/0x28
> > > > BUG: spinlock recursion on CPU#0, udevd/560
> > > >  lock: 1056e08c, .magic: dead4ead, .owner: udevd/560, .owner_cpu: 0
> > > > Backtrace:
> > > >  [<1026c5d0>] _raw_spin_lock+0x50/0xa4
> > > >  [<101076cc>] parisc_terminate+0x58/0xe8
> > > >  [<10107cbc>] handle_interruption+0x560/0x58c
> > > >  [<1010b080>] intr_check_sig+0x0/0x34
> > > > BUG: spinlock lockup on CPU#0, udevd/560, 1056e08c
> > > 
> > > What compiler version did you use to build?
> > 
> > hppa-linux-gcc (GCC) 3.3.4 (Debian 1:3.3.4-11)
> > (cross-compiling from i386 -> parisc 32bit)
> > 
> 
> Ok. I'll try to get a machine plugged in this week and take a look.
> 
> Hmm, is spinlock debugging enabled? Does it make a difference if you
> turn that off?

Yes, they were enabled, but turning them off gave the same problem:

Waiting for /dev to be fully populated...
Backtrace:
 [<101124fc>] unwind_frame_regs+0x48/0x220
 [<10112808>] unwind_once+0x10/0x48
 [<10111b34>] get_wchan+0x2c/0x68
 [<101aed2c>] do_task_stat+0x244/0x4f8
 [<101aacb8>] proc_info_read+0x88/0x108
 [<10173d70>] vfs_read+0x8c/0x138
 [<101740cc>] sys_read+0x5c/0xa4
 [<1010c080>] syscall_exit+0x0/0x28
Backtrace:
 [<101124fc>] unwind_frame_regs+0x48/0x220
 [<10112808>] unwind_once+0x10/0x48
 [<10106ea8>] do_show_stack+0x28/0xac
 [<101074f8>] parisc_terminate+0x84/0xc8
 [<10107a9c>] handle_interruption+0x560/0x58c
 [<1010b080>] intr_check_sig+0x0/0x34
(...the last backtrace continues forever...)

Helge
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] Status of 2.6.22-rc3 ?
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On Sunday 27 May 2007, Helge Deller wrote:
> > Hmm, is spinlock debugging enabled? Does it make a difference if you
> > turn that off?
> 
> Yes, they were enabled, but turning them off gave the same problem:
> 
> Waiting for /dev to be fully populated...
> Backtrace:
>  [<101124fc>] unwind_frame_regs+0x48/0x220
>  [<10112808>] unwind_once+0x10/0x48
>  [<10111b34>] get_wchan+0x2c/0x68
>  [<101aed2c>] do_task_stat+0x244/0x4f8
>  [<101aacb8>] proc_info_read+0x88/0x108
>  [<10173d70>] vfs_read+0x8c/0x138
>  [<101740cc>] sys_read+0x5c/0xa4
>  [<1010c080>] syscall_exit+0x0/0x28

The trivial hack below fixed the crash....

root@c3000:~# uname -a
Linux c3000 2.6.22-rc3 #39 Sun May 27 22:53:32 CEST 2007 parisc GNU/Linux

Helge

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 0dd3847..f9f2b39 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -385,6 +385,8 @@ get_wchan(struct task_struct *p)
         * These bracket the sleeping functions..
         */

+return 0; /* XXX */
+
        unwind_frame_init_from_blocked_task(&info, p);
        do {
                if (unwind_once(&info) < 0)
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [parisc-linux] Status of 2.6.22-rc3 ?
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On Sun, May 27, 2007 at 10:58:44PM +0200, Helge Deller wrote:
> diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
> index 0dd3847..f9f2b39 100644
> --- a/arch/parisc/kernel/process.c
> +++ b/arch/parisc/kernel/process.c
> @@ -385,6 +385,8 @@ get_wchan(struct task_struct *p)
>          * These bracket the sleeping functions..
>          */
> 
> +return 0; /* XXX */
> +


Try without CONFIG_KALLSYMS, I think somehow Alexey's patch to simply
kallsyms may have broken things for us.

ffb45122766db220d0bf3d01848d575fbbcb6430 is the commit id.

Cheers,
	Kyle



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From: "Thibaut VARENE" <T-Bone@parisc-linux.org>
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Subject: Re: [parisc-linux] Status of 2.6.22-rc3 ?
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On 5/27/07, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Sun, May 27, 2007 at 10:58:44PM +0200, Helge Deller wrote:
> > diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
> > index 0dd3847..f9f2b39 100644
> > --- a/arch/parisc/kernel/process.c
> > +++ b/arch/parisc/kernel/process.c
> > @@ -385,6 +385,8 @@ get_wchan(struct task_struct *p)
> >          * These bracket the sleeping functions..
> >          */
> >
> > +return 0; /* XXX */
> > +
>
>
> Try without CONFIG_KALLSYMS, I think somehow Alexey's patch to simply
> kallsyms may have broken things for us.

Building with CONFIG_KALLSYMS disabled gives a bootable kernel.

> ffb45122766db220d0bf3d01848d575fbbcb6430 is the commit id.

Digging that out

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/



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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] Status of 2.6.22-rc3 ?
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References: <200705271438.57394.deller@gmx.de> <20070527201829.GF28455@fattire.cabal.ca> <200705272241.46503.deller@gmx.de> <200705272258.44572.deller@gmx.de> <20070527211143.GG28455@fattire.cabal.ca>
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Cc: Helge Deller <deller@gmx.de>,
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To: Kyle McMartin <kyle@mcmartin.ca>
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Xref: news.gmane.org gmane.linux.ports.parisc:24596

On Sun, May 27, 2007 at 05:11:43PM -0400, Kyle McMartin wrote:
> On Sun, May 27, 2007 at 10:58:44PM +0200, Helge Deller wrote:
> > diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
> > index 0dd3847..f9f2b39 100644
> > --- a/arch/parisc/kernel/process.c
> > +++ b/arch/parisc/kernel/process.c
> > @@ -385,6 +385,8 @@ get_wchan(struct task_struct *p)
> >          * These bracket the sleeping functions..
> >          */
> > 
> > +return 0; /* XXX */
> > +
> 
> 
> Try without CONFIG_KALLSYMS, I think somehow Alexey's patch to simply
> kallsyms may have broken things for us.
> 
> ffb45122766db220d0bf3d01848d575fbbcb6430 is the commit id.

I don't see anything wrong with this patch.
It all looks pretty obvious to me.

I'm more inclined to believe something else changed in kallsyms_lookup()
code path.

thanks,
grant

> 
> Cheers,
> 	Kyle
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] [PATCH] [PARISC] fix section mismatch in smp.c
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Xref: news.gmane.org gmane.linux.ports.parisc:24597

[PARISC] fix section mismatch for smp_boot_one_cpu:
WARNING: arch/parisc/kernel/built-in.o(.text.__cpu_up+0x20): Section mismatch: reference to .init.text:smp_boot_one_cpu (after '__cpu_up')

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 4bf7cd1..04c7e1d 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -461,7 +461,7 @@ void __init smp_callin(void)
 /*
  * Bring one cpu online.
  */
-int __init smp_boot_one_cpu(int cpuid)
+int __cpuinit smp_boot_one_cpu(int cpuid)
 {
 	struct task_struct *idle;
 	long timeout;
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [RFC] [PATCH] reorganize syscall table
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Xref: news.gmane.org gmane.linux.ports.parisc:24598

Hi all,

this patch is modelled after the include/asm-x86_64/unistd.h file.
Basically, the idea is that the compiler can itself find the number of available Linux system calls.
Additionally, this change allows one to modify syscall number and respective function called at the same place.
Third, this change may enable me to further enhance the compile/runtime checking for invalid syscalls and to replace generating the syscall table in C instead of assembly with patches which would follow.

I've tried to do the modifications very carefully (e.g. avoid copy&past, instead use search/replace), and the kernel boots for me into a shell without problems.

Question: What do you think ? Is the patch generally OK ?

Helge

diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index d3b7917..c92eee6 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -52,6 +52,19 @@
 
 #define align(x,y) (((x)+FRAME_SIZE+(y)-1) - (((x)+(y)-1)%(y)))
 
+/* calculate __NR_Linux_syscalls */
+#define __NO_STUBS 1
+#undef __SYSCALL_SAME
+#undef _ASM_PARISC_UNISTD_H_
+#define __SYSCALL_SAME(nr,sym) [nr] = 1,
+#define __SYSCALL_DIFF(nr,sym) [nr] = 1,
+#define __SYSCALL_UHOH(nr,sym) [nr] = 1,
+#define __SYSCALL_OURS(nr,sym) [nr] = 1,
+#define __SYSCALL_COMP(nr,sym) [nr] = 1,
+static char syscalls[] = {
+#include <asm/unistd.h>
+};
+
 int main(void)
 {
 	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
@@ -294,6 +307,8 @@ int main(void)
 	DEFINE(ASM_PAGE_SIZE_DIV64, PAGE_SIZE/64);
 	DEFINE(ASM_PAGE_SIZE_DIV128, PAGE_SIZE/128);
 	BLANK();
+	DEFINE(__NR_Linux_syscalls, sizeof(syscalls)-1);
+	BLANK();
 	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
 	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
 	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 4603032..8b0559c 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -198,7 +198,7 @@ linux_gateway_entry:
 	ldil	L%sys_call_table, %r1
 	ldo     R%sys_call_table(%r1), %r19
 #endif	
-	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
+	comiclr,>> __NR_Linux_syscalls, %r20, %r0
 	b,n	.Lsyscall_nosys
 	
 	LDREGX  %r20(%r19), %r19
@@ -309,7 +309,7 @@ tracesys_next:	
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
 
-	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
+	comiclr,>> __NR_Linux_syscalls, %r20, %r0
 	b,n	.Lsyscall_nosys
 
 	LDREGX  %r20(%r19), %r19
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 627f3c2..c3b58f4 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -31,385 +31,37 @@
  */
 
 #if defined(CONFIG_64BIT) && !defined(SYSCALL_TABLE_64BIT)
-/* Use ENTRY_SAME for 32-bit syscalls which are the same on wide and
- * narrow palinux.  Use ENTRY_DIFF for those where a 32-bit specific
- * implementation is required on wide palinux.  Use ENTRY_COMP where
+/* Use __SYSCALL_SAME for 32-bit syscalls which are the same on wide and
+ * narrow palinux.  Use __SYSCALL_DIFF for those where a 32-bit specific
+ * implementation is required on wide palinux.  Use __SYSCALL_COMP where
  * the compatability layer has a useful 32-bit implementation.
  */
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys32_##_name_
-#define ENTRY_UHOH(_name_) .dword sys32_##unimplemented
-#define ENTRY_OURS(_name_) .dword parisc_##_name_
-#define ENTRY_COMP(_name_) .dword compat_sys_##_name_
+#define __SYSCALL_SAME(nr,_name_) .dword sys_##_name_
+#define __SYSCALL_DIFF(nr,_name_) .dword sys32_##_name_
+#define __SYSCALL_UHOH(nr,_name_) .dword sys32_##unimplemented
+#define __SYSCALL_OURS(nr,_name_) .dword parisc_##_name_
+#define __SYSCALL_COMP(nr,_name_) .dword compat_sys_##_name_
 #elif defined(CONFIG_64BIT) && defined(SYSCALL_TABLE_64BIT)
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys_##_name_
-#define ENTRY_UHOH(_name_) .dword sys_##_name_
-#define ENTRY_OURS(_name_) .dword sys_##_name_
-#define ENTRY_COMP(_name_) .dword sys_##_name_
+#define __SYSCALL_SAME(nr,_name_) .dword sys_##_name_
+#define __SYSCALL_DIFF(nr,_name_) .dword sys_##_name_
+#define __SYSCALL_UHOH(nr,_name_) .dword sys_##_name_
+#define __SYSCALL_OURS(nr,_name_) .dword sys_##_name_
+#define __SYSCALL_COMP(nr,_name_) .dword sys_##_name_
 #else
-#define ENTRY_SAME(_name_) .word sys_##_name_
-#define ENTRY_DIFF(_name_) .word sys_##_name_
-#define ENTRY_UHOH(_name_) .word sys_##_name_
-#define ENTRY_OURS(_name_) .word parisc_##_name_
-#define ENTRY_COMP(_name_) .word sys_##_name_
+#define __SYSCALL_SAME(nr,_name_) .word sys_##_name_
+#define __SYSCALL_DIFF(nr,_name_) .word sys_##_name_
+#define __SYSCALL_UHOH(nr,_name_) .word sys_##_name_
+#define __SYSCALL_OURS(nr,_name_) .word parisc_##_name_
+#define __SYSCALL_COMP(nr,_name_) .word sys_##_name_
 #endif
 
-	ENTRY_SAME(restart_syscall)	/* 0 */
-	ENTRY_SAME(exit)
-	ENTRY_SAME(fork_wrapper)
-	ENTRY_SAME(read)
-	ENTRY_SAME(write)
-	ENTRY_SAME(open)		/* 5 */
-	ENTRY_SAME(close)
-	ENTRY_SAME(waitpid)
-	ENTRY_SAME(creat)
-	ENTRY_SAME(link)
-	ENTRY_SAME(unlink)		/* 10 */
-	ENTRY_DIFF(execve_wrapper)
-	ENTRY_SAME(chdir)
-	/* See comments in kernel/time.c!!! Maybe we don't need this? */
-	ENTRY_COMP(time)
-	ENTRY_SAME(mknod)
-	ENTRY_SAME(chmod)		/* 15 */
-	ENTRY_SAME(lchown)
-	ENTRY_SAME(socket)
-	/* struct stat is MAYBE identical wide and narrow ?? */
-	ENTRY_COMP(newstat)
-	ENTRY_DIFF(lseek)
-	ENTRY_SAME(getpid)		/* 20 */
-	/* the 'void * data' parameter may need re-packing in wide */
-	ENTRY_COMP(mount)
-	/* concerned about struct sockaddr in wide/narrow */
-	/* ---> I think sockaddr is OK unless the compiler packs the struct */
-	/*      differently to align the char array */
-	ENTRY_SAME(bind)
-	ENTRY_SAME(setuid)
-	ENTRY_SAME(getuid)
-	ENTRY_COMP(stime)		/* 25 */
-	ENTRY_SAME(ptrace)
-	ENTRY_SAME(alarm)
-	/* see stat comment */
-	ENTRY_COMP(newfstat)
-	ENTRY_SAME(pause)
-	/* struct utimbuf uses time_t which might vary */
-	ENTRY_COMP(utime)		/* 30 */
-	/* struct sockaddr... */
-	ENTRY_SAME(connect)
-	ENTRY_SAME(listen)
-	ENTRY_SAME(access)
-	ENTRY_SAME(nice)
-	/* struct sockaddr... */
-	ENTRY_SAME(accept)		/* 35 */
-	ENTRY_SAME(sync)
-	ENTRY_SAME(kill)
-	ENTRY_SAME(rename)
-	ENTRY_SAME(mkdir)
-	ENTRY_SAME(rmdir)		/* 40 */
-	ENTRY_SAME(dup)
-	ENTRY_SAME(pipe)
-	ENTRY_COMP(times)
-	/* struct sockaddr... */
-	ENTRY_SAME(getsockname)
-	/* it seems possible brk() could return a >4G pointer... */
-	ENTRY_SAME(brk)			/* 45 */
-	ENTRY_SAME(setgid)
-	ENTRY_SAME(getgid)
-	ENTRY_SAME(signal)
-	ENTRY_SAME(geteuid)
-	ENTRY_SAME(getegid)		/* 50 */
-	ENTRY_SAME(acct)
-	ENTRY_SAME(umount)
-	/* struct sockaddr... */
-	ENTRY_SAME(getpeername)
-	ENTRY_COMP(ioctl)
-	ENTRY_COMP(fcntl)		/* 55 */
-	ENTRY_SAME(socketpair)
-	ENTRY_SAME(setpgid)
-	ENTRY_SAME(send)
-	ENTRY_OURS(newuname)
-	ENTRY_SAME(umask)		/* 60 */
-	ENTRY_SAME(chroot)
-	ENTRY_SAME(ustat)
-	ENTRY_SAME(dup2)
-	ENTRY_SAME(getppid)
-	ENTRY_SAME(getpgrp)		/* 65 */
-	ENTRY_SAME(setsid)
-	ENTRY_SAME(pivot_root)
-	/* I don't like this */
-	ENTRY_UHOH(sgetmask)
-	ENTRY_UHOH(ssetmask)
-	ENTRY_SAME(setreuid)		/* 70 */
-	ENTRY_SAME(setregid)
-	ENTRY_SAME(mincore)
-	ENTRY_COMP(sigpending)
-	ENTRY_SAME(sethostname)
-	/* Following 3 have linux-common-code structs containing longs -( */
-	ENTRY_COMP(setrlimit)		/* 75 */
-	ENTRY_COMP(getrlimit)
-	ENTRY_COMP(getrusage)
-	/* struct timeval and timezone are maybe?? consistent wide and narrow */
-	ENTRY_DIFF(gettimeofday)
-	ENTRY_DIFF(settimeofday)
-	ENTRY_SAME(getgroups)		/* 80 */
-	ENTRY_SAME(setgroups)
-	/* struct socketaddr... */
-	ENTRY_SAME(sendto)
-	ENTRY_SAME(symlink)
-	/* see stat comment */
-	ENTRY_COMP(newlstat)
-	ENTRY_SAME(readlink)		/* 85 */
-	ENTRY_SAME(ni_syscall)	/* was uselib */
-	ENTRY_SAME(swapon)
-	ENTRY_SAME(reboot)
-	ENTRY_SAME(mmap2)
-	ENTRY_SAME(mmap)		/* 90 */
-	ENTRY_SAME(munmap)
-	ENTRY_SAME(truncate)
-	ENTRY_SAME(ftruncate)
-	ENTRY_SAME(fchmod)
-	ENTRY_SAME(fchown)		/* 95 */
-	ENTRY_SAME(getpriority)
-	ENTRY_SAME(setpriority)
-	ENTRY_SAME(recv)
-	ENTRY_COMP(statfs)
-	ENTRY_COMP(fstatfs)		/* 100 */
-	ENTRY_SAME(stat64)
-	ENTRY_SAME(ni_syscall)	/* was socketcall */
-	ENTRY_SAME(syslog)
-	/* even though manpage says struct timeval contains longs, ours has
-	 * time_t and suseconds_t -- both of which are safe wide/narrow */
-	ENTRY_COMP(setitimer)
-	ENTRY_COMP(getitimer)		/* 105 */
-	ENTRY_SAME(capget)
-	ENTRY_SAME(capset)
-	ENTRY_OURS(pread64)
-	ENTRY_OURS(pwrite64)
-	ENTRY_SAME(getcwd)		/* 110 */
-	ENTRY_SAME(vhangup)
-	ENTRY_SAME(fstat64)
-	ENTRY_SAME(vfork_wrapper)
-	/* struct rusage contains longs... */
-	ENTRY_COMP(wait4)
-	ENTRY_SAME(swapoff)		/* 115 */
-	ENTRY_COMP(sysinfo)
-	ENTRY_SAME(shutdown)
-	ENTRY_SAME(fsync)
-	ENTRY_SAME(madvise)
-	ENTRY_SAME(clone_wrapper)	/* 120 */
-	ENTRY_SAME(setdomainname)
-	ENTRY_DIFF(sendfile)
-	/* struct sockaddr... */
-	ENTRY_SAME(recvfrom)
-	/* struct timex contains longs */
-	ENTRY_COMP(adjtimex)
-	ENTRY_SAME(mprotect)		/* 125 */
-	/* old_sigset_t forced to 32 bits.  Beware glibc sigset_t */
-	ENTRY_COMP(sigprocmask)
-	ENTRY_SAME(ni_syscall)	/* create_module */
-	ENTRY_SAME(init_module)
-	ENTRY_SAME(delete_module)
-	ENTRY_SAME(ni_syscall)		/* 130: get_kernel_syms */
-	/* time_t inside struct dqblk */
-	ENTRY_SAME(quotactl)
-	ENTRY_SAME(getpgid)
-	ENTRY_SAME(fchdir)
-	ENTRY_SAME(bdflush)
-	ENTRY_SAME(sysfs)		/* 135 */
-	ENTRY_OURS(personality)
-	ENTRY_SAME(ni_syscall)	/* for afs_syscall */
-	ENTRY_SAME(setfsuid)
-	ENTRY_SAME(setfsgid)
-	/* I think this might work */
-	ENTRY_SAME(llseek)		/* 140 */
-	/* struct linux_dirent has longs, like 'unsigned long d_ino' which
-	 * almost definitely should be 'ino_t d_ino' but it's too late now */
-	ENTRY_DIFF(getdents)
-	/* it is POSSIBLE that select will be OK because even though fd_set
-	 * contains longs, the macros and sizes are clever. */
-	ENTRY_COMP(select)
-	ENTRY_SAME(flock)
-	ENTRY_SAME(msync)
-	/* struct iovec contains pointers */
-	ENTRY_COMP(readv)		/* 145 */
-	ENTRY_COMP(writev)
-	ENTRY_SAME(getsid)
-	ENTRY_SAME(fdatasync)
-	/* struct __sysctl_args is a mess */
-	ENTRY_DIFF(sysctl)
-	ENTRY_SAME(mlock)		/* 150 */
-	ENTRY_SAME(munlock)
-	ENTRY_SAME(mlockall)
-	ENTRY_SAME(munlockall)
-	/* struct sched_param is ok for now */
-	ENTRY_SAME(sched_setparam)
-	ENTRY_SAME(sched_getparam)	/* 155 */
-	ENTRY_SAME(sched_setscheduler)
-	ENTRY_SAME(sched_getscheduler)
-	ENTRY_SAME(sched_yield)
-	ENTRY_SAME(sched_get_priority_max)
-	ENTRY_SAME(sched_get_priority_min)	/* 160 */
-	/* These 2 would've worked if someone had defined struct timespec
-	 * carefully, like timeval for example (which is about the same).
-	 * Unfortunately it contains a long :-( */
-	ENTRY_DIFF(sched_rr_get_interval)
-	ENTRY_COMP(nanosleep)
-	ENTRY_SAME(mremap)
-	ENTRY_SAME(setresuid)
-	ENTRY_SAME(getresuid)		/* 165 */
-	ENTRY_DIFF(sigaltstack_wrapper)
-	ENTRY_SAME(ni_syscall)		/* query_module */
-	ENTRY_SAME(poll)
-	/* structs contain pointers and an in_addr... */
-	ENTRY_COMP(nfsservctl)
-	ENTRY_SAME(setresgid)		/* 170 */
-	ENTRY_SAME(getresgid)
-	ENTRY_SAME(prctl)
-	/* signals need a careful review */
-	ENTRY_SAME(rt_sigreturn_wrapper)
-	ENTRY_DIFF(rt_sigaction)
-	ENTRY_DIFF(rt_sigprocmask)	/* 175 */
-	ENTRY_DIFF(rt_sigpending)
-	ENTRY_COMP(rt_sigtimedwait)
-	/* even though the struct siginfo_t is different, it appears like
-	 * all the paths use values which should be same wide and narrow.
-	 * Also the struct is padded to 128 bytes which means we don't have
-	 * to worry about faulting trying to copy in a larger 64-bit
-	 * struct from a 32-bit user-space app.
-	 */
-	ENTRY_COMP(rt_sigqueueinfo)
-	ENTRY_COMP(rt_sigsuspend)
-	ENTRY_SAME(chown)		/* 180 */
-	/* setsockopt() used by iptables: SO_SET_REPLACE/SO_SET_ADD_COUNTERS */
-	ENTRY_COMP(setsockopt)
-	ENTRY_COMP(getsockopt)
-	ENTRY_COMP(sendmsg)
-	ENTRY_COMP(recvmsg)
-	ENTRY_SAME(semop)		/* 185 */
-	ENTRY_SAME(semget)
-	ENTRY_DIFF(semctl)
-	ENTRY_DIFF(msgsnd)
-	ENTRY_DIFF(msgrcv)
-	ENTRY_SAME(msgget)		/* 190 */
-	ENTRY_SAME(msgctl)
-	ENTRY_SAME(shmat)
-	ENTRY_SAME(shmdt)
-	ENTRY_SAME(shmget)
-	ENTRY_SAME(shmctl)		/* 195 */
-	ENTRY_SAME(ni_syscall)		/* streams1 */
-	ENTRY_SAME(ni_syscall)		/* streams2 */
-	ENTRY_SAME(lstat64)
-	ENTRY_OURS(truncate64)
-	ENTRY_OURS(ftruncate64)		/* 200 */
-	ENTRY_SAME(getdents64)
-	ENTRY_COMP(fcntl64)
-	ENTRY_SAME(ni_syscall)	/* attrctl -- dead */
-	ENTRY_SAME(ni_syscall)	/* acl_get -- dead */
-	ENTRY_SAME(ni_syscall)		/* 205 (acl_set -- dead) */
-	ENTRY_SAME(gettid)
-	ENTRY_OURS(readahead)
-	ENTRY_SAME(tkill)
-	ENTRY_SAME(sendfile64)
-	ENTRY_COMP(futex)		/* 210 */
-	ENTRY_COMP(sched_setaffinity)
-	ENTRY_COMP(sched_getaffinity)
-	ENTRY_SAME(ni_syscall)	/* set_thread_area */
-	ENTRY_SAME(ni_syscall)	/* get_thread_area */
-	ENTRY_SAME(io_setup)		/* 215 */
-	ENTRY_SAME(io_destroy)
-	ENTRY_SAME(io_getevents)
-	ENTRY_SAME(io_submit)
-	ENTRY_SAME(io_cancel)
-	ENTRY_SAME(alloc_hugepages)	/* 220 */
-	ENTRY_SAME(free_hugepages)
-	ENTRY_SAME(exit_group)
-	ENTRY_DIFF(lookup_dcookie)
-	ENTRY_SAME(epoll_create)
-	ENTRY_SAME(epoll_ctl)		/* 225 */
-	ENTRY_SAME(epoll_wait)
- 	ENTRY_SAME(remap_file_pages)
-	ENTRY_SAME(semtimedop)
-	ENTRY_SAME(mq_open)
-	ENTRY_SAME(mq_unlink)		/* 230 */
-	ENTRY_SAME(mq_timedsend)
-	ENTRY_SAME(mq_timedreceive)
-	ENTRY_SAME(mq_notify)
-	ENTRY_SAME(mq_getsetattr)
-	ENTRY_COMP(waitid)		/* 235 */
-	ENTRY_OURS(fadvise64_64)
-	ENTRY_SAME(set_tid_address)
-	ENTRY_SAME(setxattr)
-	ENTRY_SAME(lsetxattr)
-	ENTRY_SAME(fsetxattr)		/* 240 */
-	ENTRY_SAME(getxattr)
-	ENTRY_SAME(lgetxattr)
-	ENTRY_SAME(fgetxattr)
-	ENTRY_SAME(listxattr)
-	ENTRY_SAME(llistxattr)		/* 245 */
-	ENTRY_SAME(flistxattr)
-	ENTRY_SAME(removexattr)
-	ENTRY_SAME(lremovexattr)
-	ENTRY_SAME(fremovexattr)
-	ENTRY_COMP(timer_create)	/* 250 */
-	ENTRY_COMP(timer_settime)
-	ENTRY_COMP(timer_gettime)
-	ENTRY_SAME(timer_getoverrun)
-	ENTRY_SAME(timer_delete)
-	ENTRY_COMP(clock_settime)	/* 255 */
-	ENTRY_COMP(clock_gettime)
-	ENTRY_COMP(clock_getres)
-	ENTRY_COMP(clock_nanosleep)
-	ENTRY_SAME(tgkill)
-	ENTRY_COMP(mbind)		/* 260 */
-	ENTRY_COMP(get_mempolicy)
-	ENTRY_COMP(set_mempolicy)
-	ENTRY_SAME(ni_syscall)	/* 263: reserved for vserver */
-	ENTRY_SAME(add_key)
-	ENTRY_SAME(request_key)		/* 265 */
-	ENTRY_SAME(keyctl)
-	ENTRY_SAME(ioprio_set)
-	ENTRY_SAME(ioprio_get)
-	ENTRY_SAME(inotify_init)
-	ENTRY_SAME(inotify_add_watch)	/* 270 */
-	ENTRY_SAME(inotify_rm_watch)
-	ENTRY_SAME(migrate_pages)
-	ENTRY_COMP(pselect6)
-	ENTRY_COMP(ppoll)
-	ENTRY_COMP(openat)		/* 275 */
-	ENTRY_SAME(mkdirat)
-	ENTRY_SAME(mknodat)
-	ENTRY_SAME(fchownat)
-	ENTRY_COMP(futimesat)
-	ENTRY_SAME(fstatat64)		/* 280 */
-	ENTRY_SAME(unlinkat)
-	ENTRY_SAME(renameat)
-	ENTRY_SAME(linkat)
-	ENTRY_SAME(symlinkat)
-	ENTRY_SAME(readlinkat)		/* 285 */
-	ENTRY_SAME(fchmodat)
-	ENTRY_SAME(faccessat)
-	ENTRY_SAME(unshare)
-	ENTRY_COMP(set_robust_list)
-	ENTRY_COMP(get_robust_list)	/* 290 */
-	ENTRY_SAME(splice)
-	ENTRY_OURS(sync_file_range)
-	ENTRY_SAME(tee)
-	ENTRY_COMP(vmsplice)
-	ENTRY_COMP(move_pages)		/* 295 */
-	ENTRY_SAME(getcpu)
-	ENTRY_SAME(epoll_pwait)
-	ENTRY_COMP(statfs64)
-	ENTRY_COMP(fstatfs64)
-	ENTRY_COMP(kexec_load)		/* 300 */
-	ENTRY_COMP(utimensat)
-	ENTRY_COMP(signalfd)
-	ENTRY_COMP(timerfd)
-	ENTRY_SAME(eventfd)
+/* include syscall table */
+#undef _ASM_PARISC_UNISTD_H_
+#include <asm/unistd.h>
 
-	/* Nothing yet */
 
-#undef ENTRY_SAME
-#undef ENTRY_DIFF
-#undef ENTRY_UHOH
-#undef ENTRY_COMP
-#undef ENTRY_OURS
+#undef __SYSCALL_SAME
+#undef __SYSCALL_DIFF
+#undef __SYSCALL_UHOH
+#undef __SYSCALL_COMP
+#undef __SYSCALL_OURS
diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
index f74099b..a64862e 100644
--- a/include/asm-parisc/unistd.h
+++ b/include/asm-parisc/unistd.h
@@ -5,6 +5,7 @@
  * This file contains the system call numbers.
  */
 
+
 /*
  *   HP-UX system calls get their native numbers for binary compatibility.
  */
@@ -489,322 +490,676 @@
  * from the kernel at startup, which seems a sane strategy.
  */
 
+#ifndef __SYSCALL_SAME
+#define __SYSCALL_SAME(a,b)
+#define __SYSCALL_DIFF(a,b)
+#define __SYSCALL_UHOH(a,b)
+#define __SYSCALL_OURS(a,b)
+#define __SYSCALL_COMP(a,b)
+#endif
+
+
 #define __NR_Linux                0
-#define __NR_restart_syscall      (__NR_Linux + 0)
-#define __NR_exit                 (__NR_Linux + 1)
-#define __NR_fork                 (__NR_Linux + 2)
-#define __NR_read                 (__NR_Linux + 3)
-#define __NR_write                (__NR_Linux + 4)
-#define __NR_open                 (__NR_Linux + 5)
-#define __NR_close                (__NR_Linux + 6)
-#define __NR_waitpid              (__NR_Linux + 7)
-#define __NR_creat                (__NR_Linux + 8)
-#define __NR_link                 (__NR_Linux + 9)
-#define __NR_unlink              (__NR_Linux + 10)
-#define __NR_execve              (__NR_Linux + 11)
-#define __NR_chdir               (__NR_Linux + 12)
-#define __NR_time                (__NR_Linux + 13)
-#define __NR_mknod               (__NR_Linux + 14)
-#define __NR_chmod               (__NR_Linux + 15)
-#define __NR_lchown              (__NR_Linux + 16)
-#define __NR_socket              (__NR_Linux + 17)
-#define __NR_stat                (__NR_Linux + 18)
-#define __NR_lseek               (__NR_Linux + 19)
-#define __NR_getpid              (__NR_Linux + 20)
-#define __NR_mount               (__NR_Linux + 21)
-#define __NR_bind                (__NR_Linux + 22)
-#define __NR_setuid              (__NR_Linux + 23)
-#define __NR_getuid              (__NR_Linux + 24)
-#define __NR_stime               (__NR_Linux + 25)
-#define __NR_ptrace              (__NR_Linux + 26)
-#define __NR_alarm               (__NR_Linux + 27)
-#define __NR_fstat               (__NR_Linux + 28)
-#define __NR_pause               (__NR_Linux + 29)
-#define __NR_utime               (__NR_Linux + 30)
-#define __NR_connect             (__NR_Linux + 31)
-#define __NR_listen              (__NR_Linux + 32)
-#define __NR_access              (__NR_Linux + 33)
-#define __NR_nice                (__NR_Linux + 34)
-#define __NR_accept              (__NR_Linux + 35)
-#define __NR_sync                (__NR_Linux + 36)
-#define __NR_kill                (__NR_Linux + 37)
-#define __NR_rename              (__NR_Linux + 38)
-#define __NR_mkdir               (__NR_Linux + 39)
-#define __NR_rmdir               (__NR_Linux + 40)
-#define __NR_dup                 (__NR_Linux + 41)
-#define __NR_pipe                (__NR_Linux + 42)
-#define __NR_times               (__NR_Linux + 43)
-#define __NR_getsockname         (__NR_Linux + 44)
-#define __NR_brk                 (__NR_Linux + 45)
-#define __NR_setgid              (__NR_Linux + 46)
-#define __NR_getgid              (__NR_Linux + 47)
-#define __NR_signal              (__NR_Linux + 48)
-#define __NR_geteuid             (__NR_Linux + 49)
-#define __NR_getegid             (__NR_Linux + 50)
-#define __NR_acct                (__NR_Linux + 51)
-#define __NR_umount2             (__NR_Linux + 52)
-#define __NR_getpeername         (__NR_Linux + 53)
-#define __NR_ioctl               (__NR_Linux + 54)
-#define __NR_fcntl               (__NR_Linux + 55)
-#define __NR_socketpair          (__NR_Linux + 56)
-#define __NR_setpgid             (__NR_Linux + 57)
-#define __NR_send                (__NR_Linux + 58)
-#define __NR_uname               (__NR_Linux + 59)
-#define __NR_umask               (__NR_Linux + 60)
-#define __NR_chroot              (__NR_Linux + 61)
-#define __NR_ustat               (__NR_Linux + 62)
-#define __NR_dup2                (__NR_Linux + 63)
-#define __NR_getppid             (__NR_Linux + 64)
-#define __NR_getpgrp             (__NR_Linux + 65)
-#define __NR_setsid              (__NR_Linux + 66)
-#define __NR_pivot_root          (__NR_Linux + 67)
-#define __NR_sgetmask            (__NR_Linux + 68)
-#define __NR_ssetmask            (__NR_Linux + 69)
-#define __NR_setreuid            (__NR_Linux + 70)
-#define __NR_setregid            (__NR_Linux + 71)
-#define __NR_mincore             (__NR_Linux + 72)
-#define __NR_sigpending          (__NR_Linux + 73)
-#define __NR_sethostname         (__NR_Linux + 74)
-#define __NR_setrlimit           (__NR_Linux + 75)
-#define __NR_getrlimit           (__NR_Linux + 76)
-#define __NR_getrusage           (__NR_Linux + 77)
-#define __NR_gettimeofday        (__NR_Linux + 78)
-#define __NR_settimeofday        (__NR_Linux + 79)
-#define __NR_getgroups           (__NR_Linux + 80)
-#define __NR_setgroups           (__NR_Linux + 81)
-#define __NR_sendto              (__NR_Linux + 82)
-#define __NR_symlink             (__NR_Linux + 83)
-#define __NR_lstat               (__NR_Linux + 84)
-#define __NR_readlink            (__NR_Linux + 85)
-#define __NR_uselib              (__NR_Linux + 86)
-#define __NR_swapon              (__NR_Linux + 87)
-#define __NR_reboot              (__NR_Linux + 88)
-#define __NR_mmap2             (__NR_Linux + 89)
-#define __NR_mmap                (__NR_Linux + 90)
-#define __NR_munmap              (__NR_Linux + 91)
-#define __NR_truncate            (__NR_Linux + 92)
-#define __NR_ftruncate           (__NR_Linux + 93)
-#define __NR_fchmod              (__NR_Linux + 94)
-#define __NR_fchown              (__NR_Linux + 95)
-#define __NR_getpriority         (__NR_Linux + 96)
-#define __NR_setpriority         (__NR_Linux + 97)
-#define __NR_recv                (__NR_Linux + 98)
-#define __NR_statfs              (__NR_Linux + 99)
-#define __NR_fstatfs            (__NR_Linux + 100)
-#define __NR_stat64           (__NR_Linux + 101)
-/* #define __NR_socketcall         (__NR_Linux + 102) */
-#define __NR_syslog             (__NR_Linux + 103)
-#define __NR_setitimer          (__NR_Linux + 104)
-#define __NR_getitimer          (__NR_Linux + 105)
-#define __NR_capget             (__NR_Linux + 106)
-#define __NR_capset             (__NR_Linux + 107)
-#define __NR_pread64            (__NR_Linux + 108)
-#define __NR_pwrite64           (__NR_Linux + 109)
-#define __NR_getcwd             (__NR_Linux + 110)
-#define __NR_vhangup            (__NR_Linux + 111)
-#define __NR_fstat64            (__NR_Linux + 112)
-#define __NR_vfork              (__NR_Linux + 113)
-#define __NR_wait4              (__NR_Linux + 114)
-#define __NR_swapoff            (__NR_Linux + 115)
-#define __NR_sysinfo            (__NR_Linux + 116)
-#define __NR_shutdown           (__NR_Linux + 117)
-#define __NR_fsync              (__NR_Linux + 118)
-#define __NR_madvise            (__NR_Linux + 119)
-#define __NR_clone              (__NR_Linux + 120)
-#define __NR_setdomainname      (__NR_Linux + 121)
-#define __NR_sendfile           (__NR_Linux + 122)
-#define __NR_recvfrom           (__NR_Linux + 123)
-#define __NR_adjtimex           (__NR_Linux + 124)
-#define __NR_mprotect           (__NR_Linux + 125)
-#define __NR_sigprocmask        (__NR_Linux + 126)
-#define __NR_create_module      (__NR_Linux + 127)
-#define __NR_init_module        (__NR_Linux + 128)
-#define __NR_delete_module      (__NR_Linux + 129)
-#define __NR_get_kernel_syms    (__NR_Linux + 130)
-#define __NR_quotactl           (__NR_Linux + 131)
-#define __NR_getpgid            (__NR_Linux + 132)
-#define __NR_fchdir             (__NR_Linux + 133)
-#define __NR_bdflush            (__NR_Linux + 134)
-#define __NR_sysfs              (__NR_Linux + 135)
-#define __NR_personality        (__NR_Linux + 136)
-#define __NR_afs_syscall        (__NR_Linux + 137) /* Syscall for Andrew File System */
-#define __NR_setfsuid           (__NR_Linux + 138)
-#define __NR_setfsgid           (__NR_Linux + 139)
-#define __NR__llseek            (__NR_Linux + 140)
-#define __NR_getdents           (__NR_Linux + 141)
-#define __NR__newselect         (__NR_Linux + 142)
-#define __NR_flock              (__NR_Linux + 143)
-#define __NR_msync              (__NR_Linux + 144)
-#define __NR_readv              (__NR_Linux + 145)
-#define __NR_writev             (__NR_Linux + 146)
-#define __NR_getsid             (__NR_Linux + 147)
-#define __NR_fdatasync          (__NR_Linux + 148)
-#define __NR__sysctl            (__NR_Linux + 149)
-#define __NR_mlock              (__NR_Linux + 150)
-#define __NR_munlock            (__NR_Linux + 151)
-#define __NR_mlockall           (__NR_Linux + 152)
-#define __NR_munlockall         (__NR_Linux + 153)
-#define __NR_sched_setparam             (__NR_Linux + 154)
-#define __NR_sched_getparam             (__NR_Linux + 155)
-#define __NR_sched_setscheduler         (__NR_Linux + 156)
-#define __NR_sched_getscheduler         (__NR_Linux + 157)
-#define __NR_sched_yield                (__NR_Linux + 158)
-#define __NR_sched_get_priority_max     (__NR_Linux + 159)
-#define __NR_sched_get_priority_min     (__NR_Linux + 160)
-#define __NR_sched_rr_get_interval      (__NR_Linux + 161)
-#define __NR_nanosleep          (__NR_Linux + 162)
-#define __NR_mremap             (__NR_Linux + 163)
-#define __NR_setresuid          (__NR_Linux + 164)
-#define __NR_getresuid          (__NR_Linux + 165)
-#define __NR_sigaltstack        (__NR_Linux + 166)
-#define __NR_query_module       (__NR_Linux + 167)
-#define __NR_poll               (__NR_Linux + 168)
-#define __NR_nfsservctl         (__NR_Linux + 169)
-#define __NR_setresgid          (__NR_Linux + 170)
-#define __NR_getresgid          (__NR_Linux + 171)
-#define __NR_prctl              (__NR_Linux + 172)
-#define __NR_rt_sigreturn       (__NR_Linux + 173)
-#define __NR_rt_sigaction       (__NR_Linux + 174)
-#define __NR_rt_sigprocmask     (__NR_Linux + 175)
-#define __NR_rt_sigpending      (__NR_Linux + 176)
-#define __NR_rt_sigtimedwait    (__NR_Linux + 177)
-#define __NR_rt_sigqueueinfo    (__NR_Linux + 178)
-#define __NR_rt_sigsuspend      (__NR_Linux + 179)
-#define __NR_chown              (__NR_Linux + 180)
-#define __NR_setsockopt         (__NR_Linux + 181)
-#define __NR_getsockopt         (__NR_Linux + 182)
-#define __NR_sendmsg            (__NR_Linux + 183)
-#define __NR_recvmsg            (__NR_Linux + 184)
-#define __NR_semop              (__NR_Linux + 185)
-#define __NR_semget             (__NR_Linux + 186)
-#define __NR_semctl             (__NR_Linux + 187)
-#define __NR_msgsnd             (__NR_Linux + 188)
-#define __NR_msgrcv             (__NR_Linux + 189)
-#define __NR_msgget             (__NR_Linux + 190)
-#define __NR_msgctl             (__NR_Linux + 191)
-#define __NR_shmat              (__NR_Linux + 192)
-#define __NR_shmdt              (__NR_Linux + 193)
-#define __NR_shmget             (__NR_Linux + 194)
-#define __NR_shmctl             (__NR_Linux + 195)
-
-#define __NR_getpmsg		(__NR_Linux + 196) /* Somebody *wants* streams? */
-#define __NR_putpmsg		(__NR_Linux + 197)
-
-#define __NR_lstat64            (__NR_Linux + 198)
-#define __NR_truncate64         (__NR_Linux + 199)
-#define __NR_ftruncate64        (__NR_Linux + 200)
-#define __NR_getdents64         (__NR_Linux + 201)
-#define __NR_fcntl64            (__NR_Linux + 202)
-#define __NR_attrctl            (__NR_Linux + 203)
-#define __NR_acl_get            (__NR_Linux + 204)
-#define __NR_acl_set            (__NR_Linux + 205)
-#define __NR_gettid             (__NR_Linux + 206)
-#define __NR_readahead          (__NR_Linux + 207)
-#define __NR_tkill              (__NR_Linux + 208)
-#define __NR_sendfile64         (__NR_Linux + 209)
-#define __NR_futex              (__NR_Linux + 210)
-#define __NR_sched_setaffinity  (__NR_Linux + 211)
-#define __NR_sched_getaffinity  (__NR_Linux + 212)
-#define __NR_set_thread_area    (__NR_Linux + 213)
-#define __NR_get_thread_area    (__NR_Linux + 214)
-#define __NR_io_setup           (__NR_Linux + 215)
-#define __NR_io_destroy         (__NR_Linux + 216)
-#define __NR_io_getevents       (__NR_Linux + 217)
-#define __NR_io_submit          (__NR_Linux + 218)
-#define __NR_io_cancel          (__NR_Linux + 219)
-#define __NR_alloc_hugepages    (__NR_Linux + 220)
-#define __NR_free_hugepages     (__NR_Linux + 221)
-#define __NR_exit_group         (__NR_Linux + 222)
-#define __NR_lookup_dcookie     (__NR_Linux + 223)
-#define __NR_epoll_create       (__NR_Linux + 224)
-#define __NR_epoll_ctl          (__NR_Linux + 225)
-#define __NR_epoll_wait         (__NR_Linux + 226)
-#define __NR_remap_file_pages   (__NR_Linux + 227)
-#define __NR_semtimedop         (__NR_Linux + 228)
-#define __NR_mq_open            (__NR_Linux + 229)
-#define __NR_mq_unlink          (__NR_Linux + 230)
-#define __NR_mq_timedsend       (__NR_Linux + 231)
-#define __NR_mq_timedreceive    (__NR_Linux + 232)
-#define __NR_mq_notify          (__NR_Linux + 233)
-#define __NR_mq_getsetattr      (__NR_Linux + 234)
-#define __NR_waitid		(__NR_Linux + 235)
-#define __NR_fadvise64_64	(__NR_Linux + 236)
-#define __NR_set_tid_address	(__NR_Linux + 237)
-#define __NR_setxattr		(__NR_Linux + 238)
-#define __NR_lsetxattr		(__NR_Linux + 239)
-#define __NR_fsetxattr		(__NR_Linux + 240)
-#define __NR_getxattr		(__NR_Linux + 241)
-#define __NR_lgetxattr		(__NR_Linux + 242)
-#define __NR_fgetxattr		(__NR_Linux + 243)
-#define __NR_listxattr		(__NR_Linux + 244)
-#define __NR_llistxattr		(__NR_Linux + 245)
-#define __NR_flistxattr		(__NR_Linux + 246)
-#define __NR_removexattr	(__NR_Linux + 247)
-#define __NR_lremovexattr	(__NR_Linux + 248)
-#define __NR_fremovexattr	(__NR_Linux + 249)
-#define __NR_timer_create	(__NR_Linux + 250)
-#define __NR_timer_settime	(__NR_Linux + 251)
-#define __NR_timer_gettime	(__NR_Linux + 252)
-#define __NR_timer_getoverrun	(__NR_Linux + 253)
-#define __NR_timer_delete	(__NR_Linux + 254)
-#define __NR_clock_settime	(__NR_Linux + 255)
-#define __NR_clock_gettime	(__NR_Linux + 256)
-#define __NR_clock_getres	(__NR_Linux + 257)
-#define __NR_clock_nanosleep	(__NR_Linux + 258)
-#define __NR_tgkill		(__NR_Linux + 259)
-#define __NR_mbind		(__NR_Linux + 260)
-#define __NR_get_mempolicy	(__NR_Linux + 261)
-#define __NR_set_mempolicy	(__NR_Linux + 262)
-#define __NR_vserver		(__NR_Linux + 263)
-#define __NR_add_key		(__NR_Linux + 264)
-#define __NR_request_key	(__NR_Linux + 265)
-#define __NR_keyctl		(__NR_Linux + 266)
-#define __NR_ioprio_set		(__NR_Linux + 267)
-#define __NR_ioprio_get		(__NR_Linux + 268)
-#define __NR_inotify_init	(__NR_Linux + 269)
-#define __NR_inotify_add_watch	(__NR_Linux + 270)
-#define __NR_inotify_rm_watch	(__NR_Linux + 271)
-#define __NR_migrate_pages	(__NR_Linux + 272)
-#define __NR_pselect6		(__NR_Linux + 273)
-#define __NR_ppoll		(__NR_Linux + 274)
-#define __NR_openat		(__NR_Linux + 275)
-#define __NR_mkdirat		(__NR_Linux + 276)
-#define __NR_mknodat		(__NR_Linux + 277)
-#define __NR_fchownat		(__NR_Linux + 278)
-#define __NR_futimesat		(__NR_Linux + 279)
-#define __NR_fstatat64		(__NR_Linux + 280)
-#define __NR_unlinkat		(__NR_Linux + 281)
-#define __NR_renameat		(__NR_Linux + 282)
-#define __NR_linkat		(__NR_Linux + 283)
-#define __NR_symlinkat		(__NR_Linux + 284)
-#define __NR_readlinkat		(__NR_Linux + 285)
-#define __NR_fchmodat		(__NR_Linux + 286)
-#define __NR_faccessat		(__NR_Linux + 287)
-#define __NR_unshare		(__NR_Linux + 288)
-#define __NR_set_robust_list	(__NR_Linux + 289)
-#define __NR_get_robust_list	(__NR_Linux + 290)
-#define __NR_splice		(__NR_Linux + 291)
-#define __NR_sync_file_range	(__NR_Linux + 292)
-#define __NR_tee		(__NR_Linux + 293)
-#define __NR_vmsplice		(__NR_Linux + 294)
-#define __NR_move_pages		(__NR_Linux + 295)
-#define __NR_getcpu		(__NR_Linux + 296)
-#define __NR_epoll_pwait	(__NR_Linux + 297)
-#define __NR_statfs64		(__NR_Linux + 298)
-#define __NR_fstatfs64		(__NR_Linux + 299)
-#define __NR_kexec_load		(__NR_Linux + 300)
-#define __NR_utimensat		(__NR_Linux + 301)
-#define __NR_signalfd		(__NR_Linux + 302)
-#define __NR_timerfd		(__NR_Linux + 303)
-#define __NR_eventfd		(__NR_Linux + 304)
 
-#define __NR_Linux_syscalls	(__NR_eventfd + 1)
+#define __NR_restart_syscall		(__NR_Linux + 0)
+__SYSCALL_SAME(__NR_restart_syscall, restart_syscall)
+#define __NR_exit			(__NR_Linux + 1)
+__SYSCALL_SAME(__NR_exit, exit)
+#define __NR_fork			(__NR_Linux + 2)
+__SYSCALL_SAME(__NR_fork, fork_wrapper)
+#define __NR_read			(__NR_Linux + 3)
+__SYSCALL_SAME(__NR_read, read)
+#define __NR_write			(__NR_Linux + 4)
+__SYSCALL_SAME(__NR_write, write)
+#define __NR_open			(__NR_Linux + 5)
+__SYSCALL_SAME(__NR_open, open)
+#define __NR_close			(__NR_Linux + 6)
+__SYSCALL_SAME(__NR_close, close)
+#define __NR_waitpid			(__NR_Linux + 7)
+__SYSCALL_SAME(__NR_waitpid, waitpid)
+
+#define __NR_creat			(__NR_Linux + 8)
+__SYSCALL_SAME(__NR_creat, creat)
+#define __NR_link			(__NR_Linux + 9)
+__SYSCALL_SAME(__NR_link, link)
+#define __NR_unlink			(__NR_Linux + 10)
+__SYSCALL_SAME(__NR_unlink, unlink)
+#define __NR_execve			(__NR_Linux + 11)
+__SYSCALL_DIFF(__NR_execve, execve_wrapper)
+#define __NR_chdir			(__NR_Linux + 12)
+__SYSCALL_SAME(__NR_chdir, chdir)
+#define __NR_time			(__NR_Linux + 13)	/* See comments in kernel/time.c!!! Maybe we don't need this? */
+__SYSCALL_COMP(__NR_time, time)
+#define __NR_mknod			(__NR_Linux + 14)
+__SYSCALL_SAME(__NR_mknod, mknod)
+#define __NR_chmod			(__NR_Linux + 15)
+__SYSCALL_SAME(__NR_chmod, chmod)
+
+#define __NR_lchown			(__NR_Linux + 16)
+__SYSCALL_SAME(__NR_lchown, lchown)
+#define __NR_socket			(__NR_Linux + 17)
+__SYSCALL_SAME(__NR_socket, socket)
+#define __NR_stat			(__NR_Linux + 18)	/* struct stat is MAYBE identical wide and narrow ?? */
+__SYSCALL_COMP(__NR_stat, newstat)
+#define __NR_lseek			(__NR_Linux + 19)
+__SYSCALL_DIFF(__NR_lseek, lseek)
+#define __NR_getpid			(__NR_Linux + 20)
+__SYSCALL_SAME(__NR_getpid, getpid)
+#define __NR_mount			(__NR_Linux + 21)	/* the 'void * data' parameter may need re-packing in wide */
+__SYSCALL_COMP(__NR_mount, mount)
+#define __NR_bind			(__NR_Linux + 22)
+__SYSCALL_SAME(__NR_bind, bind)
+#define __NR_setuid			(__NR_Linux + 23)
+__SYSCALL_SAME(__NR_setuid, setuid)
+
+#define __NR_getuid			(__NR_Linux + 24)
+__SYSCALL_SAME(__NR_getuid, getuid)
+#define __NR_stime			(__NR_Linux + 25)
+__SYSCALL_COMP(__NR_stime, stime)
+#define __NR_ptrace			(__NR_Linux + 26)
+__SYSCALL_SAME(__NR_ptrace, ptrace)
+#define __NR_alarm			(__NR_Linux + 27)
+__SYSCALL_SAME(__NR_alarm, alarm)
+#define __NR_fstat			(__NR_Linux + 28)
+__SYSCALL_COMP(__NR_fstat, newfstat)
+#define __NR_pause			(__NR_Linux + 29)
+__SYSCALL_SAME(__NR_pause, pause)
+#define __NR_utime			(__NR_Linux + 30)
+__SYSCALL_COMP(__NR_utime, utime)				/* struct utimbuf uses time_t which might vary */
+#define __NR_connect			(__NR_Linux + 31)
+__SYSCALL_SAME(__NR_connect, connect)
+
+#define __NR_listen			(__NR_Linux + 32)
+__SYSCALL_SAME(__NR_listen, listen)
+#define __NR_access			(__NR_Linux + 33)
+__SYSCALL_SAME(__NR_access, access)
+#define __NR_nice			(__NR_Linux + 34)
+__SYSCALL_SAME(__NR_nice, nice)
+#define __NR_accept			(__NR_Linux + 35)
+__SYSCALL_SAME(__NR_accept, accept)
+#define __NR_sync			(__NR_Linux + 36)
+__SYSCALL_SAME(__NR_sync, sync)
+#define __NR_kill			(__NR_Linux + 37)
+__SYSCALL_SAME(__NR_kill, kill)
+#define __NR_rename			(__NR_Linux + 38)
+__SYSCALL_SAME(__NR_rename, rename)
+#define __NR_mkdir			(__NR_Linux + 39)
+__SYSCALL_SAME(__NR_mkdir, mkdir)
+
+#define __NR_rmdir			(__NR_Linux + 40)
+__SYSCALL_SAME(__NR_rmdir, rmdir)
+#define __NR_dup			(__NR_Linux + 41)
+__SYSCALL_SAME(__NR_dup, dup)
+#define __NR_pipe			(__NR_Linux + 42)
+__SYSCALL_SAME(__NR_pipe, pipe)
+#define __NR_times			(__NR_Linux + 43)
+__SYSCALL_COMP(__NR_times, times)
+#define __NR_getsockname		(__NR_Linux + 44)
+__SYSCALL_SAME(__NR_getsockname, getsockname)
+#define __NR_brk			(__NR_Linux + 45)
+__SYSCALL_SAME(__NR_brk, brk)
+#define __NR_setgid			(__NR_Linux + 46)
+__SYSCALL_SAME(__NR_setgid, setgid)
+#define __NR_getgid			(__NR_Linux + 47)
+__SYSCALL_SAME(__NR_getgid, getgid)
+
+#define __NR_signal			(__NR_Linux + 48)
+__SYSCALL_SAME(__NR_signal, signal)
+#define __NR_geteuid			(__NR_Linux + 49)
+__SYSCALL_SAME(__NR_geteuid, geteuid)
+#define __NR_getegid			(__NR_Linux + 50)
+__SYSCALL_SAME(__NR_getegid, getegid)
+#define __NR_acct			(__NR_Linux + 51)
+__SYSCALL_SAME(__NR_acct, acct)
+#define __NR_umount2			(__NR_Linux + 52)
+__SYSCALL_SAME(__NR_umount2, umount)
+#define __NR_getpeername		(__NR_Linux + 53)
+__SYSCALL_SAME(__NR_getpeername, getpeername)
+#define __NR_ioctl			(__NR_Linux + 54)
+__SYSCALL_COMP(__NR_ioctl, ioctl)
+#define __NR_fcntl			(__NR_Linux + 55)
+__SYSCALL_COMP(__NR_fcntl, fcntl)
+
+#define __NR_socketpair			(__NR_Linux + 56)
+__SYSCALL_SAME(__NR_socketpair, socketpair)
+#define __NR_setpgid			(__NR_Linux + 57)
+__SYSCALL_SAME(__NR_setpgid, setpgid)
+#define __NR_send			(__NR_Linux + 58)
+__SYSCALL_SAME(__NR_send, send)
+#define __NR_uname			(__NR_Linux + 59)
+__SYSCALL_OURS(__NR_uname, newuname)
+#define __NR_umask			(__NR_Linux + 60)
+__SYSCALL_SAME(__NR_umask, umask)
+#define __NR_chroot			(__NR_Linux + 61)
+__SYSCALL_SAME(__NR_chroot, chroot)
+#define __NR_ustat			(__NR_Linux + 62)
+__SYSCALL_SAME(__NR_ustat, ustat)
+#define __NR_dup2			(__NR_Linux + 63)
+__SYSCALL_SAME(__NR_dup2, dup2)
+
+#define __NR_getppid			(__NR_Linux + 64)
+__SYSCALL_SAME(__NR_getppid, getppid)
+#define __NR_getpgrp			(__NR_Linux + 65)
+__SYSCALL_SAME(__NR_getpgrp, getpgrp)
+#define __NR_setsid			(__NR_Linux + 66)
+__SYSCALL_SAME(__NR_setsid, setsid)
+#define __NR_pivot_root			(__NR_Linux + 67)
+__SYSCALL_SAME(__NR_pivot_root, pivot_root)
+#define __NR_sgetmask			(__NR_Linux + 68)
+__SYSCALL_UHOH(__NR_sgetmask, sgetmask)
+#define __NR_ssetmask			(__NR_Linux + 69)
+__SYSCALL_UHOH(__NR_ssetmask, ssetmask)
+#define __NR_setreuid			(__NR_Linux + 70)
+__SYSCALL_SAME(__NR_setreuid, setreuid)
+#define __NR_setregid			(__NR_Linux + 71)
+__SYSCALL_SAME(__NR_setregid, setregid)
+
+#define __NR_mincore			(__NR_Linux + 72)
+__SYSCALL_SAME(__NR_mincore, mincore)
+#define __NR_sigpending			(__NR_Linux + 73)
+__SYSCALL_COMP(__NR_sigpending, sigpending)
+#define __NR_sethostname		(__NR_Linux + 74)
+__SYSCALL_SAME(__NR_sethostname, sethostname)
+#define __NR_setrlimit			(__NR_Linux + 75)	/* Following 3 have linux-common-code structs containing longs -( */
+__SYSCALL_COMP(__NR_setrlimit, setrlimit)
+#define __NR_getrlimit			(__NR_Linux + 76)
+__SYSCALL_COMP(__NR_getrlimit, getrlimit)
+#define __NR_getrusage			(__NR_Linux + 77)
+__SYSCALL_COMP(__NR_getrusage, getrusage)
+#define __NR_gettimeofday		(__NR_Linux + 78)	/* struct timeval and timezone are maybe?? consistent wide and narrow */
+__SYSCALL_DIFF(__NR_gettimeofday, gettimeofday)
+#define __NR_settimeofday		(__NR_Linux + 79)
+__SYSCALL_DIFF(__NR_settimeofday, settimeofday)
+
+#define __NR_getgroups			(__NR_Linux + 80)
+__SYSCALL_SAME(__NR_getgroups, getgroups)
+#define __NR_setgroups			(__NR_Linux + 81)
+__SYSCALL_SAME(__NR_setgroups, setgroups)
+#define __NR_sendto			(__NR_Linux + 82)
+__SYSCALL_SAME(__NR_sendto, sendto)
+#define __NR_symlink			(__NR_Linux + 83)
+__SYSCALL_SAME(__NR_symlink, symlink)
+#define __NR_lstat			(__NR_Linux + 84)
+__SYSCALL_COMP(__NR_lstat, newlstat)
+#define __NR_readlink			(__NR_Linux + 85)
+__SYSCALL_SAME(__NR_readlink, readlink)
+#define __NR_uselib			(__NR_Linux + 86)	/* uselib -- dead */
+__SYSCALL_SAME(__NR_uselib, ni_syscall)
+#define __NR_swapon			(__NR_Linux + 87)
+__SYSCALL_SAME(__NR_swapon, swapon)
+
+#define __NR_reboot			(__NR_Linux + 88)
+__SYSCALL_SAME(__NR_reboot, reboot)
+#define __NR_mmap2			(__NR_Linux + 89)
+__SYSCALL_SAME(__NR_mmap2, mmap2)
+#define __NR_mmap			(__NR_Linux + 90)
+__SYSCALL_SAME(__NR_mmap, mmap)
+#define __NR_munmap			(__NR_Linux + 91)
+__SYSCALL_SAME(__NR_munmap, munmap)
+#define __NR_truncate			(__NR_Linux + 92)
+__SYSCALL_SAME(__NR_truncate, truncate)
+#define __NR_ftruncate			(__NR_Linux + 93)
+__SYSCALL_SAME(__NR_ftruncate, ftruncate)
+#define __NR_fchmod			(__NR_Linux + 94)
+__SYSCALL_SAME(__NR_fchmod, fchmod)
+#define __NR_fchown			(__NR_Linux + 95)
+__SYSCALL_SAME(__NR_fchown, fchown)
+
+#define __NR_getpriority		(__NR_Linux + 96)
+__SYSCALL_SAME(__NR_getpriority, getpriority)
+#define __NR_setpriority		(__NR_Linux + 97)
+__SYSCALL_SAME(__NR_setpriority, setpriority)
+#define __NR_recv			(__NR_Linux + 98)
+__SYSCALL_SAME(__NR_recv, recv)
+#define __NR_statfs			(__NR_Linux + 99)
+__SYSCALL_COMP(__NR_statfs, statfs)
+#define __NR_fstatfs			(__NR_Linux + 100)
+__SYSCALL_COMP(__NR_fstatfs, fstatfs)
+#define __NR_stat64			(__NR_Linux + 101)
+__SYSCALL_SAME(__NR_stat64, stat64)
+#define __NR_socketcall_IGNORE		(__NR_Linux + 102)	/* socketcall -- dead */
+__SYSCALL_SAME(__NR_socketcall_IGNORE, ni_syscall)
+#define __NR_syslog			(__NR_Linux + 103)
+__SYSCALL_SAME(__NR_syslog, syslog)
+
+#define __NR_setitimer			(__NR_Linux + 104)
+__SYSCALL_COMP(__NR_setitimer, setitimer)
+#define __NR_getitimer			(__NR_Linux + 105)
+__SYSCALL_COMP(__NR_getitimer, getitimer)
+#define __NR_capget			(__NR_Linux + 106)
+__SYSCALL_SAME(__NR_capget, capget)
+#define __NR_capset			(__NR_Linux + 107)
+__SYSCALL_SAME(__NR_capset, capset)
+#define __NR_pread64			(__NR_Linux + 108)
+__SYSCALL_OURS(__NR_pread64, pread64)
+#define __NR_pwrite64			(__NR_Linux + 109)
+__SYSCALL_OURS(__NR_pwrite64, pwrite64)
+#define __NR_getcwd			(__NR_Linux + 110)
+__SYSCALL_SAME(__NR_getcwd, getcwd)
+#define __NR_vhangup			(__NR_Linux + 111)
+__SYSCALL_SAME(__NR_vhangup, vhangup)
+
+#define __NR_fstat64			(__NR_Linux + 112)
+__SYSCALL_SAME(__NR_fstat64, fstat64)
+#define __NR_vfork			(__NR_Linux + 113)
+__SYSCALL_SAME(__NR_vfork, vfork_wrapper)
+#define __NR_wait4			(__NR_Linux + 114)	/* struct rusage contains longs... */
+__SYSCALL_COMP(__NR_wait4, wait4)
+#define __NR_swapoff			(__NR_Linux + 115)
+__SYSCALL_SAME(__NR_swapoff, swapoff)
+#define __NR_sysinfo			(__NR_Linux + 116)
+__SYSCALL_COMP(__NR_sysinfo, sysinfo)
+#define __NR_shutdown			(__NR_Linux + 117)
+__SYSCALL_SAME(__NR_shutdown, shutdown)
+#define __NR_fsync			(__NR_Linux + 118)
+__SYSCALL_SAME(__NR_fsync, fsync)
+#define __NR_madvise			(__NR_Linux + 119)
+__SYSCALL_SAME(__NR_madvise, madvise)
+
+#define __NR_clone			(__NR_Linux + 120)
+__SYSCALL_SAME(__NR_clone, clone_wrapper)
+#define __NR_setdomainname		(__NR_Linux + 121)
+__SYSCALL_SAME(__NR_setdomainname, setdomainname)
+#define __NR_sendfile			(__NR_Linux + 122)
+__SYSCALL_DIFF(__NR_sendfile, sendfile)
+#define __NR_recvfrom			(__NR_Linux + 123)
+__SYSCALL_SAME(__NR_recvfrom, recvfrom)
+#define __NR_adjtimex			(__NR_Linux + 124)
+__SYSCALL_COMP(__NR_adjtimex, adjtimex)
+#define __NR_mprotect			(__NR_Linux + 125)
+__SYSCALL_SAME(__NR_mprotect, mprotect)
+#define __NR_sigprocmask		(__NR_Linux + 126)	/* old_sigset_t forced to 32 bits.  Beware glibc sigset_t */
+__SYSCALL_COMP(__NR_sigprocmask, sigprocmask)
+#define __NR_create_module		(__NR_Linux + 127)	/* create_module -- dead */
+__SYSCALL_SAME(__NR_create_module, ni_syscall)
+
+#define __NR_init_module		(__NR_Linux + 128)
+__SYSCALL_SAME(__NR_init_module, init_module)
+#define __NR_delete_module		(__NR_Linux + 129)
+__SYSCALL_SAME(__NR_delete_module, delete_module)
+#define __NR_get_kernel_syms		(__NR_Linux + 130)	/* get_kernel_syms -- dead */
+__SYSCALL_SAME(__NR_get_kernel_syms, ni_syscall)
+#define __NR_quotactl			(__NR_Linux + 131)
+__SYSCALL_SAME(__NR_quotactl, quotactl)				/* time_t inside struct dqblk */
+#define __NR_getpgid			(__NR_Linux + 132)
+__SYSCALL_SAME(__NR_getpgid, getpgid)
+#define __NR_fchdir			(__NR_Linux + 133)
+__SYSCALL_SAME(__NR_fchdir, fchdir)
+#define __NR_bdflush			(__NR_Linux + 134)
+__SYSCALL_SAME(__NR_bdflush, bdflush)
+#define __NR_sysfs			(__NR_Linux + 135)
+__SYSCALL_SAME(__NR_sysfs, sysfs)
+
+#define __NR_personality		(__NR_Linux + 136)
+__SYSCALL_OURS(__NR_personality, personality)
+#define __NR_afs_syscall		(__NR_Linux + 137)	/* Syscall for Andrew File System */
+__SYSCALL_SAME(__NR_afs_syscall, ni_syscall)
+#define __NR_setfsuid			(__NR_Linux + 138)
+__SYSCALL_SAME(__NR_setfsuid, setfsuid)
+#define __NR_setfsgid			(__NR_Linux + 139)
+__SYSCALL_SAME(__NR_setfsgid, setfsgid)
+#define __NR__llseek			(__NR_Linux + 140)
+__SYSCALL_SAME(__NR__llseek, llseek)
+#define __NR_getdents			(__NR_Linux + 141)	/* struct linux_dirent has longs, like 'unsigned long d_ino' which */
+__SYSCALL_DIFF(__NR_getdents, getdents)			/* almost definitely should be 'ino_t d_ino' but it's too late now */
+#define __NR__newselect			(__NR_Linux + 142)
+__SYSCALL_COMP(__NR__newselect, select)
+#define __NR_flock			(__NR_Linux + 143)
+__SYSCALL_SAME(__NR_flock, flock)
+
+#define __NR_msync			(__NR_Linux + 144)
+__SYSCALL_SAME(__NR_msync, msync)
+#define __NR_readv			(__NR_Linux + 145)	/* struct iovec contains pointers */
+__SYSCALL_COMP(__NR_readv, readv)
+#define __NR_writev			(__NR_Linux + 146)
+__SYSCALL_COMP(__NR_writev, writev)
+#define __NR_getsid			(__NR_Linux + 147)
+__SYSCALL_SAME(__NR_getsid, getsid)
+#define __NR_fdatasync			(__NR_Linux + 148)
+__SYSCALL_SAME(__NR_fdatasync, fdatasync)
+#define __NR__sysctl			(__NR_Linux + 149)	/* struct __sysctl_args is a mess */
+__SYSCALL_DIFF(__NR__sysctl, sysctl)
+#define __NR_mlock			(__NR_Linux + 150)
+__SYSCALL_SAME(__NR_mlock, mlock)
+#define __NR_munlock			(__NR_Linux + 151)
+__SYSCALL_SAME(__NR_munlock, munlock)
+
+#define __NR_mlockall			(__NR_Linux + 152)
+__SYSCALL_SAME(__NR_mlockall, mlockall)
+#define __NR_munlockall			(__NR_Linux + 153)
+__SYSCALL_SAME(__NR_munlockall, munlockall)
+#define __NR_sched_setparam		(__NR_Linux + 154) /* struct sched_param is ok for now */
+__SYSCALL_SAME(__NR_sched_setparam, sched_setparam)
+#define __NR_sched_getparam		(__NR_Linux + 155)
+__SYSCALL_SAME(__NR_sched_getparam, sched_getparam)
+#define __NR_sched_setscheduler		(__NR_Linux + 156)
+__SYSCALL_SAME(__NR_sched_setscheduler, sched_setscheduler)
+#define __NR_sched_getscheduler		(__NR_Linux + 157)
+__SYSCALL_SAME(__NR_sched_getscheduler, sched_getscheduler)
+#define __NR_sched_yield		(__NR_Linux + 158)
+__SYSCALL_SAME(__NR_sched_yield, sched_yield)
+#define __NR_sched_get_priority_max	(__NR_Linux + 159)
+__SYSCALL_SAME(__NR_sched_get_priority_max, sched_get_priority_max)
+
+#define __NR_sched_get_priority_min	(__NR_Linux + 160)
+__SYSCALL_SAME(__NR_sched_get_priority_min, sched_get_priority_min)
+#define __NR_sched_rr_get_interval	(__NR_Linux + 161)
+__SYSCALL_DIFF(__NR_sched_rr_get_interval, sched_rr_get_interval)
+#define __NR_nanosleep			(__NR_Linux + 162)
+__SYSCALL_COMP(__NR_nanosleep, nanosleep)
+#define __NR_mremap			(__NR_Linux + 163)
+__SYSCALL_SAME(__NR_mremap, mremap)
+#define __NR_setresuid			(__NR_Linux + 164)
+__SYSCALL_SAME(__NR_setresuid, setresuid)
+#define __NR_getresuid			(__NR_Linux + 165)
+__SYSCALL_SAME(__NR_getresuid, getresuid)
+#define __NR_sigaltstack		(__NR_Linux + 166)
+__SYSCALL_DIFF(__NR_sigaltstack, sigaltstack_wrapper)
+#define __NR_query_module		(__NR_Linux + 167)	/* query_module -- dead */
+__SYSCALL_SAME(__NR_query_module, ni_syscall)
+
+#define __NR_poll			(__NR_Linux + 168)
+__SYSCALL_SAME(__NR_poll, poll)
+#define __NR_nfsservctl			(__NR_Linux + 169)	/* structs contain pointers and an in_addr... */
+__SYSCALL_COMP(__NR_nfsservctl, nfsservctl)
+#define __NR_setresgid			(__NR_Linux + 170)
+__SYSCALL_SAME(__NR_setresgid, setresgid)
+#define __NR_getresgid			(__NR_Linux + 171)
+__SYSCALL_SAME(__NR_getresgid, getresgid)
+#define __NR_prctl			(__NR_Linux + 172)
+__SYSCALL_SAME(__NR_prctl, prctl)
+#define __NR_rt_sigreturn		(__NR_Linux + 173)	/* signals need a careful review */
+__SYSCALL_SAME(__NR_rt_sigreturn, rt_sigreturn_wrapper)
+#define __NR_rt_sigaction		(__NR_Linux + 174)
+__SYSCALL_DIFF(__NR_rt_sigaction, rt_sigaction)
+#define __NR_rt_sigprocmask		(__NR_Linux + 175)
+__SYSCALL_DIFF(__NR_rt_sigprocmask, rt_sigprocmask)
+
+#define __NR_rt_sigpending		(__NR_Linux + 176)
+__SYSCALL_DIFF(__NR_rt_sigpending, rt_sigpending)
+#define __NR_rt_sigtimedwait		(__NR_Linux + 177)
+__SYSCALL_COMP(__NR_rt_sigtimedwait, rt_sigtimedwait)
+#define __NR_rt_sigqueueinfo		(__NR_Linux + 178)
+__SYSCALL_COMP(__NR_rt_sigqueueinfo, rt_sigqueueinfo)
+#define __NR_rt_sigsuspend		(__NR_Linux + 179)
+__SYSCALL_COMP(__NR_rt_sigsuspend, rt_sigsuspend)
+#define __NR_chown			(__NR_Linux + 180)
+__SYSCALL_SAME(__NR_chown, chown)
+#define __NR_setsockopt			(__NR_Linux + 181)	/* setsockopt() used by iptables: SO_SET_REPLACE/SO_SET_ADD_COUNTERS */
+__SYSCALL_COMP(__NR_setsockopt, setsockopt)
+#define __NR_getsockopt			(__NR_Linux + 182)
+__SYSCALL_COMP(__NR_getsockopt, getsockopt)
+#define __NR_sendmsg			(__NR_Linux + 183)
+__SYSCALL_COMP(__NR_sendmsg, sendmsg)
+
+#define __NR_recvmsg			(__NR_Linux + 184)
+__SYSCALL_COMP(__NR_recvmsg, recvmsg)
+#define __NR_semop			(__NR_Linux + 185)
+__SYSCALL_SAME(__NR_semop, semop)
+#define __NR_semget			(__NR_Linux + 186)
+__SYSCALL_SAME(__NR_semget, semget)
+#define __NR_semctl			(__NR_Linux + 187)
+__SYSCALL_DIFF(__NR_semctl, semctl)
+#define __NR_msgsnd			(__NR_Linux + 188)
+__SYSCALL_DIFF(__NR_msgsnd, msgsnd)
+#define __NR_msgrcv			(__NR_Linux + 189)
+__SYSCALL_DIFF(__NR_msgrcv, msgrcv)
+#define __NR_msgget			(__NR_Linux + 190)
+__SYSCALL_SAME(__NR_msgget, msgget)
+#define __NR_msgctl			(__NR_Linux + 191)
+__SYSCALL_SAME(__NR_msgctl, msgctl)
+
+#define __NR_shmat			(__NR_Linux + 192)
+__SYSCALL_SAME(__NR_shmat, shmat)
+#define __NR_shmdt			(__NR_Linux + 193)
+__SYSCALL_SAME(__NR_shmdt, shmdt)
+#define __NR_shmget			(__NR_Linux + 194)
+__SYSCALL_SAME(__NR_shmget, shmget)
+#define __NR_shmctl			(__NR_Linux + 195)
+__SYSCALL_SAME(__NR_shmctl, shmctl)
+#define __NR_getpmsg			(__NR_Linux + 196)	/* streams1 -- dead */
+__SYSCALL_SAME(__NR_getpmsg, ni_syscall)
+#define __NR_putpmsg			(__NR_Linux + 197)	/* streams2 -- dead */
+__SYSCALL_SAME(__NR_putpmsg, ni_syscall)
+#define __NR_lstat64			(__NR_Linux + 198)
+__SYSCALL_SAME(__NR_lstat64, lstat64)
+#define __NR_truncate64			(__NR_Linux + 199)
+__SYSCALL_OURS(__NR_truncate64, truncate64)
+
+#define __NR_ftruncate64		(__NR_Linux + 200)
+__SYSCALL_OURS(__NR_ftruncate64, ftruncate64)
+#define __NR_getdents64			(__NR_Linux + 201)
+__SYSCALL_SAME(__NR_getdents64, getdents64)
+#define __NR_fcntl64			(__NR_Linux + 202)
+__SYSCALL_COMP(__NR_fcntl64, fcntl64)
+#define __NR_attrctl			(__NR_Linux + 203)	/* attrctl -- dead */
+__SYSCALL_SAME(__NR_attrctl, ni_syscall)
+#define __NR_acl_get			(__NR_Linux + 204)	/* acl_get -- dead */
+__SYSCALL_SAME(__NR_acl_get, ni_syscall)
+#define __NR_acl_set			(__NR_Linux + 205)	/* acl_set -- dead */
+__SYSCALL_SAME(__NR_acl_set, ni_syscall)
+#define __NR_gettid			(__NR_Linux + 206)
+__SYSCALL_SAME(__NR_gettid, gettid)
+#define __NR_readahead			(__NR_Linux + 207)
+__SYSCALL_OURS(__NR_readahead, readahead)
+
+#define __NR_tkill			(__NR_Linux + 208)
+__SYSCALL_SAME(__NR_tkill, tkill)
+#define __NR_sendfile64			(__NR_Linux + 209)
+__SYSCALL_SAME(__NR_sendfile64, sendfile64)
+#define __NR_futex			(__NR_Linux + 210)
+__SYSCALL_COMP(__NR_futex, futex)
+#define __NR_sched_setaffinity		(__NR_Linux + 211)
+__SYSCALL_COMP(__NR_sched_setaffinity, sched_setaffinity)
+#define __NR_sched_getaffinity		(__NR_Linux + 212)
+__SYSCALL_COMP(__NR_sched_getaffinity, sched_getaffinity)
+#define __NR_set_thread_area		(__NR_Linux + 213)	/* set_thread_area */
+__SYSCALL_SAME(__NR_set_thread_area, ni_syscall)
+#define __NR_get_thread_area		(__NR_Linux + 214)	/* get_thread_area */
+__SYSCALL_SAME(__NR_get_thread_area, ni_syscall)
+#define __NR_io_setup			(__NR_Linux + 215)
+__SYSCALL_SAME(__NR_io_setup, io_setup)
+
+#define __NR_io_destroy			(__NR_Linux + 216)
+__SYSCALL_SAME(__NR_io_destroy, io_destroy)
+#define __NR_io_getevents		(__NR_Linux + 217)
+__SYSCALL_SAME(__NR_io_getevents, io_getevents)
+#define __NR_io_submit			(__NR_Linux + 218)
+__SYSCALL_SAME(__NR_io_submit, io_submit)
+#define __NR_io_cancel			(__NR_Linux + 219)
+__SYSCALL_SAME(__NR_io_cancel, io_cancel)
+#define __NR_alloc_hugepages		(__NR_Linux + 220)
+__SYSCALL_SAME(__NR_alloc_hugepages, alloc_hugepages)
+#define __NR_free_hugepages		(__NR_Linux + 221)
+__SYSCALL_SAME(__NR_free_hugepages, free_hugepages)
+#define __NR_exit_group			(__NR_Linux + 222)
+__SYSCALL_SAME(__NR_exit_group, exit_group)
+#define __NR_lookup_dcookie		(__NR_Linux + 223)
+__SYSCALL_DIFF(__NR_lookup_dcookie, lookup_dcookie)
+
+#define __NR_epoll_create		(__NR_Linux + 224)
+__SYSCALL_SAME(__NR_epoll_create, epoll_create)
+#define __NR_epoll_ctl			(__NR_Linux + 225)
+__SYSCALL_SAME(__NR_epoll_ctl, epoll_ctl)
+#define __NR_epoll_wait			(__NR_Linux + 226)
+__SYSCALL_SAME(__NR_epoll_wait, epoll_wait)
+#define __NR_remap_file_pages		(__NR_Linux + 227)
+__SYSCALL_SAME(__NR_remap_file_pages, remap_file_pages)
+#define __NR_semtimedop			(__NR_Linux + 228)
+__SYSCALL_SAME(__NR_semtimedop, semtimedop)
+#define __NR_mq_open			(__NR_Linux + 229)
+__SYSCALL_SAME(__NR_mq_open, mq_open)
+#define __NR_mq_unlink			(__NR_Linux + 230)
+__SYSCALL_SAME(__NR_mq_unlink, mq_unlink)
+#define __NR_mq_timedsend		(__NR_Linux + 231)
+__SYSCALL_SAME(__NR_mq_timedsend, mq_timedsend)
+
+#define __NR_mq_timedreceive		(__NR_Linux + 232)
+__SYSCALL_SAME(__NR_mq_timedreceive, mq_timedreceive)
+#define __NR_mq_notify			(__NR_Linux + 233)
+__SYSCALL_SAME(__NR_mq_notify, mq_notify)
+#define __NR_mq_getsetattr		(__NR_Linux + 234)
+__SYSCALL_SAME(__NR_mq_getsetattr, mq_getsetattr)
+#define __NR_waitid			(__NR_Linux + 235)
+__SYSCALL_COMP(__NR_waitid, waitid)
+#define __NR_fadvise64_64		(__NR_Linux + 236)
+__SYSCALL_OURS(__NR_fadvise64_64, fadvise64_64)
+#define __NR_set_tid_address		(__NR_Linux + 237)
+__SYSCALL_SAME(__NR_set_tid_address, set_tid_address)
+#define __NR_setxattr			(__NR_Linux + 238)
+__SYSCALL_SAME(__NR_setxattr, setxattr)
+#define __NR_lsetxattr			(__NR_Linux + 239)
+__SYSCALL_SAME(__NR_lsetxattr, lsetxattr)
+
+#define __NR_fsetxattr			(__NR_Linux + 240)
+__SYSCALL_SAME(__NR_fsetxattr, fsetxattr)
+#define __NR_getxattr			(__NR_Linux + 241)
+__SYSCALL_SAME(__NR_getxattr, getxattr)
+#define __NR_lgetxattr			(__NR_Linux + 242)
+__SYSCALL_SAME(__NR_lgetxattr, lgetxattr)
+#define __NR_fgetxattr			(__NR_Linux + 243)
+__SYSCALL_SAME(__NR_fgetxattr, fgetxattr)
+#define __NR_listxattr			(__NR_Linux + 244)
+__SYSCALL_SAME(__NR_listxattr, listxattr)
+#define __NR_llistxattr			(__NR_Linux + 245)
+__SYSCALL_SAME(__NR_llistxattr, llistxattr)
+#define __NR_flistxattr			(__NR_Linux + 246)
+__SYSCALL_SAME(__NR_flistxattr, flistxattr)
+#define __NR_removexattr		(__NR_Linux + 247)
+__SYSCALL_SAME(__NR_removexattr, removexattr)
+
+#define __NR_lremovexattr		(__NR_Linux + 248)
+__SYSCALL_SAME(__NR_lremovexattr, lremovexattr)
+#define __NR_fremovexattr		(__NR_Linux + 249)
+__SYSCALL_SAME(__NR_fremovexattr, fremovexattr)
+#define __NR_timer_create		(__NR_Linux + 250)
+__SYSCALL_COMP(__NR_timer_create, timer_create)
+#define __NR_timer_settime		(__NR_Linux + 251)
+__SYSCALL_COMP(__NR_timer_settime, timer_settime)
+#define __NR_timer_gettime		(__NR_Linux + 252)
+__SYSCALL_COMP(__NR_timer_gettime, timer_gettime)
+#define __NR_timer_getoverrun		(__NR_Linux + 253)
+__SYSCALL_SAME(__NR_timer_getoverrun, timer_getoverrun)
+#define __NR_timer_delete		(__NR_Linux + 254)
+__SYSCALL_SAME(__NR_timer_delete, timer_delete)
+#define __NR_clock_settime		(__NR_Linux + 255)
+__SYSCALL_COMP(__NR_clock_settime, clock_settime)
+
+#define __NR_clock_gettime		(__NR_Linux + 256)
+__SYSCALL_COMP(__NR_clock_gettime, clock_gettime)
+#define __NR_clock_getres		(__NR_Linux + 257)
+__SYSCALL_COMP(__NR_clock_getres, clock_getres)
+#define __NR_clock_nanosleep		(__NR_Linux + 258)
+__SYSCALL_COMP(__NR_clock_nanosleep, clock_nanosleep)
+#define __NR_tgkill			(__NR_Linux + 259)
+__SYSCALL_SAME(__NR_tgkill, tgkill)
+#define __NR_mbind			(__NR_Linux + 260)
+__SYSCALL_COMP(__NR_mbind, mbind)
+#define __NR_get_mempolicy		(__NR_Linux + 261)
+__SYSCALL_COMP(__NR_get_mempolicy, get_mempolicy)
+#define __NR_set_mempolicy		(__NR_Linux + 262)
+__SYSCALL_COMP(__NR_set_mempolicy, set_mempolicy)
+#define __NR_vserver			(__NR_Linux + 263)	/* reserved for vserver */
+__SYSCALL_SAME(__NR_vserver, ni_syscall)
+
+#define __NR_add_key			(__NR_Linux + 264)
+__SYSCALL_SAME(__NR_add_key, add_key)
+#define __NR_request_key		(__NR_Linux + 265)
+__SYSCALL_SAME(__NR_request_key, request_key)
+#define __NR_keyctl			(__NR_Linux + 266)
+__SYSCALL_SAME(__NR_keyctl, keyctl)
+#define __NR_ioprio_set			(__NR_Linux + 267)
+__SYSCALL_SAME(__NR_ioprio_set, ioprio_set)
+#define __NR_ioprio_get			(__NR_Linux + 268)
+__SYSCALL_SAME(__NR_ioprio_get, ioprio_get)
+#define __NR_inotify_init		(__NR_Linux + 269)
+__SYSCALL_SAME(__NR_inotify_init, inotify_init)
+#define __NR_inotify_add_watch		(__NR_Linux + 270)
+__SYSCALL_SAME(__NR_inotify_add_watch, inotify_add_watch)
+#define __NR_inotify_rm_watch		(__NR_Linux + 271)
+__SYSCALL_SAME(__NR_inotify_rm_watch, inotify_rm_watch)
+
+#define __NR_migrate_pages		(__NR_Linux + 272)
+__SYSCALL_SAME(__NR_migrate_pages, migrate_pages)
+#define __NR_pselect6			(__NR_Linux + 273)
+__SYSCALL_COMP(__NR_pselect6, pselect6)
+#define __NR_ppoll			(__NR_Linux + 274)
+__SYSCALL_COMP(__NR_ppoll, ppoll)
+#define __NR_openat			(__NR_Linux + 275)
+__SYSCALL_COMP(__NR_openat, openat)
+#define __NR_mkdirat			(__NR_Linux + 276)
+__SYSCALL_SAME(__NR_mkdirat, mkdirat)
+#define __NR_mknodat			(__NR_Linux + 277)
+__SYSCALL_SAME(__NR_mknodat, mknodat)
+#define __NR_fchownat			(__NR_Linux + 278)
+__SYSCALL_SAME(__NR_fchownat, fchownat)
+#define __NR_futimesat			(__NR_Linux + 279)
+__SYSCALL_COMP(__NR_futimesat, futimesat)
+
+#define __NR_fstatat64			(__NR_Linux + 280)
+__SYSCALL_SAME(__NR_fstatat64, fstatat64)
+#define __NR_unlinkat			(__NR_Linux + 281)
+__SYSCALL_SAME(__NR_unlinkat, unlinkat)
+#define __NR_renameat			(__NR_Linux + 282)
+__SYSCALL_SAME(__NR_renameat, renameat)
+#define __NR_linkat			(__NR_Linux + 283)
+__SYSCALL_SAME(__NR_linkat, linkat)
+#define __NR_symlinkat			(__NR_Linux + 284)
+__SYSCALL_SAME(__NR_symlinkat, symlinkat)
+#define __NR_readlinkat			(__NR_Linux + 285)
+__SYSCALL_SAME(__NR_readlinkat, readlinkat)
+#define __NR_fchmodat			(__NR_Linux + 286)
+__SYSCALL_SAME(__NR_fchmodat, fchmodat)
+#define __NR_faccessat			(__NR_Linux + 287)
+__SYSCALL_SAME(__NR_faccessat, faccessat)
+
+#define __NR_unshare			(__NR_Linux + 288)
+__SYSCALL_SAME(__NR_unshare, unshare)
+#define __NR_set_robust_list		(__NR_Linux + 289)
+__SYSCALL_COMP(__NR_set_robust_list, set_robust_list)
+#define __NR_get_robust_list		(__NR_Linux + 290)
+__SYSCALL_COMP(__NR_get_robust_list, get_robust_list)
+#define __NR_splice			(__NR_Linux + 291)
+__SYSCALL_SAME(__NR_splice, splice)
+#define __NR_sync_file_range		(__NR_Linux + 292)
+__SYSCALL_OURS(__NR_sync_file_range, sync_file_range)
+#define __NR_tee			(__NR_Linux + 293)
+__SYSCALL_SAME(__NR_tee, tee)
+#define __NR_vmsplice			(__NR_Linux + 294)
+__SYSCALL_COMP(__NR_vmsplice, vmsplice)
+#define __NR_move_pages			(__NR_Linux + 295)
+__SYSCALL_COMP(__NR_move_pages, move_pages)
+
+#define __NR_getcpu			(__NR_Linux + 296)
+__SYSCALL_SAME(__NR_getcpu, getcpu)
+#define __NR_epoll_pwait		(__NR_Linux + 297)
+__SYSCALL_SAME(__NR_epoll_pwait, epoll_pwait)
+#define __NR_statfs64			(__NR_Linux + 298)
+__SYSCALL_COMP(__NR_statfs64, statfs64)
+#define __NR_fstatfs64			(__NR_Linux + 299)
+__SYSCALL_COMP(__NR_fstatfs64, fstatfs64)
+#define __NR_kexec_load			(__NR_Linux + 300)
+__SYSCALL_COMP(__NR_kexec_load, kexec_load)
+#define __NR_utimensat			(__NR_Linux + 301)
+__SYSCALL_COMP(__NR_utimensat, utimensat)
+#define __NR_signalfd			(__NR_Linux + 302)
+__SYSCALL_COMP(__NR_signalfd, signalfd)
+#define __NR_timerfd			(__NR_Linux + 303)
+__SYSCALL_COMP(__NR_timerfd, timerfd)
+
+#define __NR_eventfd			(__NR_Linux + 304)
+__SYSCALL_SAME(__NR_eventfd, eventfd)
 
 
 #define __IGNORE_select		/* newselect */
 #define __IGNORE_fadvise64	/* fadvise64_64 */
 #define __IGNORE_utimes		/* utime */
 
+#undef __SYSCALL_SAME
+#undef __SYSCALL_DIFF
+#undef __SYSCALL_UHOH
+#undef __SYSCALL_OURS
+#undef __SYSCALL_COMP
 
 #define HPUX_GATEWAY_ADDR       0xC0000004
 #define LINUX_GATEWAY_ADDR      0x100
@@ -973,8 +1328,6 @@ type name(type1 arg1, type2 arg2, type3 
 
 #endif /* __ASSEMBLY__ */
 
-#undef STR

From - Thu Nov 08 21:35:59 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] [PARISC] fix "ENTRY" redefinition between
	linkage.h and xattr.c
Date: Mon, 28 May 2007 18:01:39 +0200
Lines: 39
Approved: news@gmane.org
Message-ID: <200705281805.51615.deller__17666.9181943454$1416624376$gmane$org@gmx.de>
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[PATCH] fix "ENTRY" redefinition between linkage.h and xattr.c

Signed-off-by: Helge Deller <deller@gmx.de>

Thanks to James for noticing. It fixes:
fs/ext3/xattr.c:65:1: warning: "ENTRY" redefined
In file included from include/linux/linkage.h:4,
                 from include/linux/fs.h:271,
                 from fs/ext3/xattr.c:54:
include/asm/linkage.h:13:1: warning: this is the location of the previous definition



diff --git a/include/asm-parisc/linkage.h b/include/asm-parisc/linkage.h
index 7a09d91..cdb4709 100644
--- a/include/asm-parisc/linkage.h
+++ b/include/asm-parisc/linkage.h
@@ -10,6 +10,8 @@
  * In parisc assembly a semicolon marks a comment while a
  * exclamation mark is used to seperate independend lines.
  */
+#ifdef __ASSEMBLY__
+
 #define ENTRY(name) \
 	.export name !\
 	ALIGN !\
@@ -24,5 +26,6 @@ name:
 	END(name)
 #endif
 
+#endif /* __ASSEMBLY__ */
 
 #endif  /* __ASM_PARISC_LINKAGE_H */
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Subject: Re: [parisc-linux] [PATCH] [PARISC] fix "ENTRY" redefinition between linkage.h and xattr.c
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On Mon, May 28, 2007 at 06:01:39PM +0200, Helge Deller wrote:
> [PATCH] fix "ENTRY" redefinition between linkage.h and xattr.c
> 

applied



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Subject: Re: [parisc-linux] [PATCH] [PARISC] fix section mismatch in smp.c
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On Mon, May 28, 2007 at 12:26:02AM +0200, Helge Deller wrote:
> [PARISC] fix section mismatch for smp_boot_one_cpu:
> WARNING: arch/parisc/kernel/built-in.o(.text.__cpu_up+0x20): Section mismatch: reference to .init.text:smp_boot_one_cpu (after '__cpu_up')
> 

applied



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Subject: [parisc-linux] PATCH remove remnants of softirq
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Xref: news.gmane.org gmane.linux.ports.parisc:24602

Kyle,

This patch removes remnants of softirq support that we no longer need.
I suspect this was just overlooked when willy convert parisc to generic
IRQ support.

Tested on c3600 32-bit UP.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 8474f9e..98ae563 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -954,21 +954,6 @@ intr_return:
 	/* NOTE: Need to enable interrupts incase we schedule. */
 	ssm     PSW_SM_I, %r0
 
-	/* Check for software interrupts */
-
-	.import irq_stat,data
-
-	load32	irq_stat,%r19
-#ifdef CONFIG_SMP
-	mfctl   %cr30,%r1
-	ldw	TI_CPU(%r1),%r1 /* get cpu # - int */
-	/* shift left ____cacheline_aligned (aka L1_CACHE_BYTES) amount
-	** irq_stat[] is defined using ____cacheline_aligned.
-	*/
-	SHLREG	%r1,L1_CACHE_SHIFT,%r20
-	add     %r19,%r20,%r19	/* now have &irq_stat[smp_processor_id()] */
-#endif /* CONFIG_SMP */
-
 intr_check_resched:
 
 	/* check for reschedule */
@@ -2055,24 +2040,6 @@ ENTRY(syscall_exit)
 	 */
 	loadgp
 
-syscall_check_bh:
-
-	/* Check for software interrupts */
-
-	.import irq_stat,data
-
-	load32	irq_stat,%r19
-
-#ifdef CONFIG_SMP
-	/* sched.h: int processor */
-	/* %r26 is used as scratch register to index into irq_stat[] */
-	ldw     TI_CPU-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r26 /* cpu # */
-
-	/* shift left ____cacheline_aligned (aka L1_CACHE_BYTES) bits */
-	SHLREG	%r26,L1_CACHE_SHIFT,%r20
-	add     %r19,%r20,%r19	/* now have &irq_stat[smp_processor_id()] */
-#endif /* CONFIG_SMP */

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Subject: [parisc-linux] Re: PATCH remove remnants of softirq
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On Mon, May 28, 2007 at 04:31:59PM -0600, Grant Grundler wrote:
> Kyle,
> 
> This patch removes remnants of softirq support that we no longer need.
> I suspect this was just overlooked when willy convert parisc to generic
> IRQ support.
> 
> Tested on c3600 32-bit UP.
> 

ACK once it's been tested a bit more thoroughly.
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Hello Helge, Kyle,

I just noticed the same pb you mentioned but with 2.6.22-rc2 rebuild with=

gcc-4.1.3 20070518 (debian pkg) ro run 32bit up kernel only:
patst004 login: Backtrace:
[<10111500>] unwind_once+0x154/0x38c
[<10110aa0>] get_wchan+0x3c/0x80
[<101a939c>] do_task_stat+0x69c/0x6a4
[<101a6b88>] proc_info_read+0xc4/0x104
[<1016d724>] vfs_read+0xb4/0x164
[<1016dbec>] sys_read+0x4c/0x90
[<1010b080>] syscall_exit+0x0/0x14
Backtrace:
[<10111500>] unwind_once+0x154/0x38c
[<101068cc>] do_show_stack+0x28/0xb0
[<10106df0>] parisc_terminate+0x7c/0xd4
[<10107274>] handle_interruption+0x24c/0x690
[<1010a080>] intr_check_sig+0x0/0x34

[snip]

[<10111500>] unwind_once+0x154/0x38c
[<101068cc>] do_show_stack+0x28/0xb0
[<10106df0>] parisc_terminate+0x7c/0xd4
[<10107274>] handle_interruption+0x24c/0x690
[<1010a080>] intr_check_sig+0x0/0x34

(this last loops for ever).

These occure after a simple 'top' on a b2k as well as on a b180.

(sorry if I couldn't any more spent more time to help to debug ;-);
The best I can do is to attempt to build same stuff with gcc-4.2? )

Joel

PS: grabing latest git tree I still got follwing WARNINGs:
WARNING: arch/parisc/kernel/built-in.o(.text.alloc_pa_dev+0x150): Section=

mismatch: reference to .init.text:parisc_hardware_description (after
'alloc_pa_dev')
WARNING: drivers/built-in.o(.text.lba_fixup_bus+0x3c): Section mismatch:
reference to .init.text:pci_read_bridge_bases (after 'lba_fixup_bus')

=0A---=0Ahttp://www.scarlet.be/

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On Tue, May 29, 2007 at 05:34:50PM +0200, Joel Soete wrote:
> I just noticed the same pb you mentioned but with 2.6.22-rc2 rebuild with
> gcc-4.1.3 20070518 (debian pkg) ro run 32bit up kernel only:
> patst004 login: Backtrace:

So on 32-bit it actually makes it to userspace? Interesting.

I've spent the last 2 days debugging this, I'll let you know when I have
something to test.
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On Tue, May 29, 2007 at 05:34:50PM +0200, Joel Soete wrote:
> Hello Helge, Kyle,
> 
> I just noticed the same pb you mentioned but with 2.6.22-rc2 rebuild with
> gcc-4.1.3 20070518 (debian pkg) ro run 32bit up kernel only:
> patst004 login: Backtrace:
> [<10111500>] unwind_once+0x154/0x38c
> [<10110aa0>] get_wchan+0x3c/0x80
> [<101a939c>] do_task_stat+0x69c/0x6a4
> [<101a6b88>] proc_info_read+0xc4/0x104
> [<1016d724>] vfs_read+0xb4/0x164
> [<1016dbec>] sys_read+0x4c/0x90

I have no idea what caused this, but the infinite recursion should be
fixed once I push the fixes out. I can look at this over the weekend
maybe (sorry, I don't have any machines kicking around plugged in and
wired up that can run 32-bit atm.)

Cheers,
	Kyle M.
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On Tue, May 29, 2007 at 05:34:50PM +0200, Joel Soete wrote:
> WARNING: arch/parisc/kernel/built-in.o(.text.alloc_pa_dev+0x150): Section
> mismatch: reference to .init.text:parisc_hardware_description (after
> 'alloc_pa_dev')
> WARNING: drivers/built-in.o(.text.lba_fixup_bus+0x3c): Section mismatch:
> reference to .init.text:pci_read_bridge_bases (after 'lba_fixup_bus')
> 

Harmless warnings. I'll get to these in the morning if Helge doesn't
beat me to it.

Cheers,
	Kyle
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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: [parisc-linux] [PATCH] fix possible null ptr deref in
	kallsyms_lookup
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ugh, this function gets called by our unwinder. recursive backtrace for
the win... bisection to find this one was "fun."

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---

commit ffb45122766db220d0bf3d01848d575fbbcb6430 removed our modname
arg since it was otherwise unused, but i was not cc'd on the patch :/

diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index f1bda23..fed5441 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -257,7 +257,8 @@ const char *kallsyms_lookup(unsigned long addr,
 		pos = get_symbol_pos(addr, symbolsize, offset);
 		/* Grab name */
 		kallsyms_expand_symbol(get_symbol_offset(pos), namebuf);
-		*modname = NULL;
+		if (modname)
+			*modname = NULL;
 		return namebuf;
 	}
 
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Subject: Re: [parisc-linux] Status of 2.6.22-rc3 ?
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On Sun, May 27, 2007 at 02:38:57PM +0200, Helge Deller wrote:
>

Ok.

Pushed out a new HEAD (cc650a7a9f5ebc3f9290a8e20e3f55b4f52f849e) which
fixes the issues I was having booting on C8000.

http://git.kernel.org/git/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commit;h=376e210b71d7736775f43f32c5c7712f90aaf59a

was the fix for why userspace was not working at all for a 64-bit
kernel.

http://git.kernel.org/git/?p=linux/kernel/git/kyle/parisc-2.6.git;a=commit;h=cb9577958d85896303561d9cc8544885deb272be

was the fix for one(?) of the unwinder bugs. Well, the brown paper bag
fix at least. Fix for the fix is pending upstream ack.

Now maybe I can get some sleep.

Cheers,
	Kyle



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> On Tue, May 29, 2007 at 05:34:50PM +0200, Joel Soete wrote:
> > Hello Helge, Kyle,
> > 
> > I just noticed the same pb you mentioned but with 2.6.22-rc2 rebuild =
with
> > gcc-4.1.3 20070518 (debian pkg) ro run 32bit up kernel only:
> > patst004 login: Backtrace:
> > [<10111500>] unwind_once+0x154/0x38c
> > [<10110aa0>] get_wchan+0x3c/0x80
> > [<101a939c>] do_task_stat+0x69c/0x6a4
> > [<101a6b88>] proc_info_read+0xc4/0x104
> > [<1016d724>] vfs_read+0xb4/0x164
> > [<1016dbec>] sys_read+0x4c/0x90
> 
> I have no idea what caused this, but the infinite recursion should be
> fixed once I push the fixes out. I can look at this over the weekend
> maybe (sorry, I don't have any machines kicking around plugged in and
> wired up that can run 32-bit atm.)
> 
> Cheers,
> 	Kyle M.
> 
> 
Kyle,

Good news: your latest commit seems to fix the pb.

I rebuild it for b2k and b180 config (32 bit only) and boot it successful=
ly on
the 2 systems ;-)

More then top, I rebuild a kernel on b2k, git pull and tar kernel tree sr=
c on
b180 (and some other day-today stuf scp, apt-get, ...), all seems ok ;-)

Thanks a lot,
    Joel =0A---=0Ahttp://www.scarlet.be/

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On Wed, May 30, 2007 at 03:20:02PM +0200, Joel Soete wrote:
> 
> Good news: your latest commit seems to fix the pb.
> 
> I rebuild it for b2k and b180 config (32 bit only) and boot it successfully on
> the 2 systems ;-)
> 
> More then top, I rebuild a kernel on b2k, git pull and tar kernel tree src on
> b180 (and some other day-today stuf scp, apt-get, ...), all seems ok ;-)
> 

Awesome! Thanks for testing, Joel!
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Subject: [parisc-linux] -pie is broken on hppa
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Hi,
I discovered that the breakage of portmap on hppa is related to the
-pie linkage.
Every program linked with the -pie option segfaults at start.
Unfortunately, portmap is unconditionnaly built with this option.
I suspect nscd is in the same case.

How can I go further in investigation ?
I would like to identify the responsible component between the toolchain 
and the glibc.

Any hint is welcome.
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Xref: news.gmane.org gmane.linux.ports.parisc:24613

Hi,
I discovered that the breakage of portmap on hppa is related to the
-pie linkage.
Every program linked with the -pie option segfaults at start.
Unfortunately, portmap is unconditionnaly built with this option.
I suspect nscd is in the same case.

How can I go further in investigation ?
I would like to identify the responsible component between the toolchain 
and the glibc.

Any hint is welcome.


-- 
To UNSUBSCRIBE, email to debian-hppa-REQUEST@lists.debian.org
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> Hi,
> I discovered that the breakage of portmap on hppa is related to the
> -pie linkage.
> Every program linked with the -pie option segfaults at start.
> Unfortunately, portmap is unconditionnaly built with this option.
> I suspect nscd is in the same case.

This problem was fixed sometime ago.  I don't see it with libc6
2.3.6.ds1-13.  Also, nscd doesn't segfault on my system.  Make sure
the libc6 and binutils packages on your system are up to date.

If they are up to date and you still have the problem, provide testcase
and details on libc6, gcc and binutils versions.

The problem was in crt1.o and related to the handling of R_PARISC_PLABEL21L
and R_PARISC_PLABEL14R relocations.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Kyle McMartin <kyle@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [PATCH] Introduce O_CLOEXEC (take >2)
Date: Thu, 31 May 2007 23:07:54 -0400
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Cc: Chris Zankel <chris@zankel.net>,
 linux-kernel@vger.kernel.org,
 Ulrich Drepper <drepper@redhat.com>,
 Andrew Morton <akpm@linux-foundation.org>,
 torvalds@linux-foundation.org,
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To: Stephen Rothwell <sfr@canb.auug.org.au>
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On Fri, Jun 01, 2007 at 11:38:40AM +1000, Stephen Rothwell wrote:
> This also breaks Alpha (which uses 02000000 for O_DIRECT) and parisc
> (which uses 02000000 for O_RSYNC).  So you ether need to choose a
> different value or define O_CLOEXEC for those two architectures.
> 

That's easy enough to fix...

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

diff --git a/include/asm-parisc/fcntl.h b/include/asm-parisc/fcntl.h
index 317851f..4ca0fb0 100644
--- a/include/asm-parisc/fcntl.h
+++ b/include/asm-parisc/fcntl.h
@@ -14,6 +14,7 @@
 #define O_DSYNC		01000000 /* HPUX only */
 #define O_RSYNC		02000000 /* HPUX only */
 #define O_NOATIME	04000000
+#define O_CLOEXEC	08000000 /* set close_on_exec */
 
 #define O_DIRECTORY	00010000 /* must be a directory */
 #define O_NOFOLLOW	00000200 /* don't follow links */
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From - Thu Nov 08 21:36:01 2018
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From: Kyle McMartin <kyle@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: [PATCH] Introduce O_CLOEXEC (take >2)
Date: Fri, 1 Jun 2007 18:55:49 -0400
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Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
 Chris Zankel <chris@zankel.net>,
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 Ulrich Drepper <drepper@redhat.com>,
 Andrew Morton <akpm@linux-foundation.org>,
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To: Byron Stanoszek <bstanoszek@comtime.com>
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On Fri, Jun 01, 2007 at 03:17:03PM -0400, Byron Stanoszek wrote:
> These are octal values, so you really want to use 010000000 instead of
> 08000000. :-)
> 

Wow. I am totally a dumbass, I saw a 'x' there. Sigh.

diff --git a/include/asm-parisc/fcntl.h b/include/asm-parisc/fcntl.h
index 317851f..7089507 100644
--- a/include/asm-parisc/fcntl.h
+++ b/include/asm-parisc/fcntl.h
@@ -14,6 +14,7 @@
 #define O_DSYNC		01000000 /* HPUX only */
 #define O_RSYNC		02000000 /* HPUX only */
 #define O_NOATIME	04000000
+#define O_CLOEXEC	010000000	/* set close_on_exec */
 
 #define O_DIRECTORY	00010000 /* must be a directory */
 #define O_NOFOLLOW	00000200 /* don't follow links */
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] -pie is broken on hppa
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> I discovered that the breakage of portmap on hppa is related to the
> -pie linkage.
> Every program linked with the -pie option segfaults at start.
> Unfortunately, portmap is unconditionnaly built with this option.

I advise not updating to libc6 2.5-9.  More than pie apps seem
affected.  For example, svn is broken on my system.  _start in
*crt1.o needs fixing.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] -pie is broken on hppa
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On Fri, Jun 01, 2007 at 09:19:20PM -0400, John David Anglin wrote:
> > I discovered that the breakage of portmap on hppa is related to the
> > -pie linkage.
> > Every program linked with the -pie option segfaults at start.
> > Unfortunately, portmap is unconditionnaly built with this option.
> 
> I advise not updating to libc6 2.5-9.  More than pie apps seem
> affected.  For example, svn is broken on my system.  _start in
> *crt1.o needs fixing.

This is a matter of some urgency -- I heard glibc 2.5 moved into Debian
Testing today.
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> > I advise not updating to libc6 2.5-9.  More than pie apps seem
> > affected.  For example, svn is broken on my system.  _start in
> > *crt1.o needs fixing.
> 
> This is a matter of some urgency -- I heard glibc 2.5 moved into Debian
> Testing today.

Yes.  I just did an apt-get update about 30 minutes ago.

This is what I see when I do a gcc_update:
dave@mx3210:~/gnu/gcc-4.3/gcc$ contrib/gcc_update
Updating SVN tree
At revision 125275.
svn: Can't read directory '.': Partial results are valid but processing is incomplete
Adjusting file timestamps

Lock files are getting messed up and svn cleanup fails.  A full checkout
does work but that's several hundred megabytes.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> > > I advise not updating to libc6 2.5-9.  More than pie apps seem
> > > affected.  For example, svn is broken on my system.  _start in
> > > *crt1.o needs fixing.
> > 
> > This is a matter of some urgency -- I heard glibc 2.5 moved into Debian
> > Testing today.
> 
> Yes.  I just did an apt-get update about 30 minutes ago.

As a further update, this system has now crashed three times since
the update.  It was stable prior to the glibc update and had run
several months without needing a reboot.  It was doing gcc builds
almost continuously.

The first two crashes were building gcc and led to file system
corruption.  I tried looking at the log files but there's a gap.
On the console, there's a continuous stream of messages:

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
     PSW: 00001000000001101111111100001111 Not tainted
r00-03  000000ff0806ff0f 000000004036c000 0000000040104edc 00000000c0601048
r04-07  00000000403d79d4 00000000403d89d4 000000000002c258 0000000000000000
r08-11  000000000002a3f4 000000000002a3f4 0000000000000001 0000000000000000
r12-15  000000000002a3f4 0000000000000000 0000000000000001 000000000002c258
r16-19  000000000002a3f4 000000000002a3f4 000000000002a3f4 0000000000000000
r20-23  000000000000012a 000000004029c000 0000000040357594 000000000002c268
r24-27  00000000c0601048 0000000000000058 000000000002c258 0000000040503fc0
r28-31  00000000403daf60 000000007c744170 000000007c744180 00000000403575e3
sr00-03  00000000000eb800 0000000000000000 0000000000000000 00000000000eb800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000000000000 0000000000000004
 IIR: 00000000    ISR: 00000000000eb800  IOR: 0000000000000000
 CPU:        0   CR30: 000000007c744000 CR31: 00000000404c4000
 ORIG_R28: 0000000040155a7c
 IAOQ[0]: 0x0
 IAOQ[1]: 0x4
 RP(r2): syscall_exit+0x0/0x14

The latest crash was:
mx3210:/var/log# df
Filesystem           1K-blocks      Used Available Use% Mounted on
*** crash ***

Need to figure out how to revert the 2.5 libc update.  apt-get
wouldn't let me install 2.3.6.ds1-13.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> On the console, there's a continuous stream of messages:
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>      PSW: 00001000000001101111111100001111 Not tainted
> r00-03  000000ff0806ff0f 000000004036c000 0000000040104edc 00000000c0601048
> r04-07  00000000403d79d4 00000000403d89d4 000000000002c258 0000000000000000
> r08-11  000000000002a3f4 000000000002a3f4 0000000000000001 0000000000000000
> r12-15  000000000002a3f4 0000000000000000 0000000000000001 000000000002c258
> r16-19  000000000002a3f4 000000000002a3f4 000000000002a3f4 0000000000000000
> r20-23  000000000000012a 000000004029c000 0000000040357594 000000000002c268
> r24-27  00000000c0601048 0000000000000058 000000000002c258 0000000040503fc0
> r28-31  00000000403daf60 000000007c744170 000000007c744180 00000000403575e3
> sr00-03  00000000000eb800 0000000000000000 0000000000000000 00000000000eb800
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000000000000 0000000000000004
>  IIR: 00000000    ISR: 00000000000eb800  IOR: 0000000000000000
>  CPU:        0   CR30: 000000007c744000 CR31: 00000000404c4000
>  ORIG_R28: 0000000040155a7c
>  IAOQ[0]: 0x0
>  IAOQ[1]: 0x4
>  RP(r2): syscall_exit+0x0/0x14

The kernel is 2.6.20-gfb60ab85-dirty.  The above appears to be a
syscall that's not hooked up.   The number appears to be 0x12a (298).

I believe that we aren't allowed to fault on the gateway page.
If we have holes in the syscall table, I think we need a check
for this since the following code will fault if r19 is zero:

.Lin_syscall:
        ldil    L%syscall_exit,%r2
	be      0(%sr7,%r19)
	ldo     R%syscall_exit(%r2),%r2

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Jun 03, 2007 at 02:28:17PM -0400, John David Anglin wrote:
> I believe that we aren't allowed to fault on the gateway page.
> If we have holes in the syscall table, I think we need a check
> for this since the following code will fault if r19 is zero:
> 
> .Lin_syscall:
>         ldil    L%syscall_exit,%r2
> 	be      0(%sr7,%r19)
> 	ldo     R%syscall_exit(%r2),%r2
> 

This is bad. Your kernel is too old, and glibc didn't take this into
account. I'll hack something up to return -ENOSYS.
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Subject: Re: [parisc-linux] -pie is broken on hppa
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> This is bad. Your kernel is too old, and glibc didn't take this into
> account. I'll hack something up to return -ENOSYS.

I'm a bit surprised that 2.6.20 is too old.  In any event, my
initial attempt to do the above hasn't worked:

Kernel command line: root=/dev/sda3 panic=5 console=ttyS1 palo_kernel=1/vmlinux
Backtrace:
 [<00000000401c6d02>] ep_remove+0xc8/0xe8
 [<0000000040200215>] log_do_checkpoint+0x1cc/0x418
 [<0000000040287010>] class_device_add+0x510/0x5f0
 [<0000000040140912>] sysctl_string+0x188/0x1b8
 [<000000004010020f>] aligned_rfi+0xc/0xe00
 [<0000000040366380>] packet_getsockopt+0x130/0x138
 [<0000000040365160>] packet_ioctl+0x188/0x198
 [<0000000040362798>] unix_ioctl+0xb8/0x110
 [<000000004034cecc>] ipv4_sysctl_forward_strategy+0x12c/0x138
 [<000000004034ce48>] ipv4_sysctl_forward_strategy+0xa8/0x138
 [<000000004034bd5c>] ip_mc_msfget+0x16c/0x1d0
 [<0000000040343fa0>] ipv4_doint_and_flush_strategy+0x110/0x138
 [<000000004033ef8c>] udp_ioctl+0xf4/0x100
 [<000000004033d8bc>] udp_lib_setsockopt+0x8c/0x170
 [<000000004033d37c>] udp_lib_getsockopt+0x54/0x110
 [<000000004033c140>] raw_sendmsg+0x640/0x810


Kernel Fault: Code=15 regs=00000000404c0290 (Addr=0000000080000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000011100001110 Not tainted
r00-03  000000000804070e 00000000405107c0 000000004051aed4 0000000040103000
r04-07  0000000040503fc0 0000000000480000 00000000fffffff0 00000000f040dd30
r08-11  0000000000000258 0000000000000001 000000000804000e 0000000040514634
r12-15  0000000000000000 0000000000000001 0000000000000001 00000000000225c4
r16-19  00000000f0d00b0c 0000000000000000 00000000000f76f8 0000000080000000
r20-23  00000000e208b185 000000003ffffd90 0000000040103020 00000000404e5300
r24-27  0000000000000000 00000000403c3491 000000004010300d 0000000040503fc0
r28-31  00000000e208b185 00000000404c0260 00000000404c0290 000000000fec6fc0
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004051af34 000000004051af38
 IIR: 0e60109c    ISR: 0000000000000000  IOR: 0000000080000000
 CPU:        0   CR30: 00000000404c0000 CR31: 00000000404c4000
 ORIG_R28: 00000000401385a4
 IAOQ[0]: check_ivt+0x84/0xe0
 IAOQ[1]: check_ivt+0x88/0xe0
 RP(r2): check_ivt+0x24/0xe0
Kernel panic - not syncing: Kernel Fault
<0>Rebooting in 5 seconds..

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Jun 03, 2007 at 03:49:38PM -0400, John David Anglin wrote:
> > This is bad. Your kernel is too old, and glibc didn't take this into
> > account. I'll hack something up to return -ENOSYS.
> 
> I'm a bit surprised that 2.6.20 is too old.  In any event, my
> initial attempt to do the above hasn't worked:
>

Why? The syscall was added for 2.6.21.

> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001000000011100001110 Not tainted
> r00-03  000000000804070e 00000000405107c0 000000004051aed4 0000000040103000
> r04-07  0000000040503fc0 0000000000480000 00000000fffffff0 00000000f040dd30
> r08-11  0000000000000258 0000000000000001 000000000804000e 0000000040514634
> r12-15  0000000000000000 0000000000000001 0000000000000001 00000000000225c4
> r16-19  00000000f0d00b0c 0000000000000000 00000000000f76f8 0000000080000000
> r20-23  00000000e208b185 000000003ffffd90 0000000040103020 00000000404e5300
> r24-27  0000000000000000 00000000403c3491 000000004010300d 0000000040503fc0
> r28-31  00000000e208b185 00000000404c0260 00000000404c0290 000000000fec6fc0
> sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004051af34 000000004051af38
>  IIR: 0e60109c    ISR: 0000000000000000  IOR: 0000000080000000
>  CPU:        0   CR30: 00000000404c0000 CR31: 00000000404c4000
>  ORIG_R28: 00000000401385a4
>  IAOQ[0]: check_ivt+0x84/0xe0
>  IAOQ[1]: check_ivt+0x88/0xe0
>  RP(r2): check_ivt+0x24/0xe0
> Kernel panic - not syncing: Kernel Fault
> <0>Rebooting in 5 seconds..

binutils is fucked.
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> binutils is fucked.

Crap!  I'll try installing one of my own builds from a different system.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Jun 03, 2007 at 04:03:15PM -0400, John David Anglin wrote:
> > binutils is fucked.
> 
> Crap!  I'll try installing one of my own builds from a different system.
> 

I've had good luck building kernels with my Etch (Debian 4.0) chroots.

--Kyle
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> The latest crash was:
> mx3210:/var/log# df
> Filesystem           1K-blocks      Used Available Use% Mounted on
> *** crash ***
> 

df uses statfs64, which was added to 2.6.21... I'm confused why we're
not catching it in syscall.S, I'll need to sit and think a bit.

--Kyle
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On Sun, Jun 03, 2007 at 03:28:29PM -0400, Kyle McMartin wrote:
> On Sun, Jun 03, 2007 at 02:28:17PM -0400, John David Anglin wrote:
> > I believe that we aren't allowed to fault on the gateway page.
> > If we have holes in the syscall table, I think we need a check
> > for this since the following code will fault if r19 is zero:
> > 
> > .Lin_syscall:
> >         ldil    L%syscall_exit,%r2
> > 	be      0(%sr7,%r19)
> > 	ldo     R%syscall_exit(%r2),%r2
> > 
> 
> This is bad. Your kernel is too old, and glibc didn't take this into
> account. I'll hack something up to return -ENOSYS.
> 

Er, we already have code to do this:

#ifdef CONFIG_64BIT
	ldil	L%sys_call_table, %r1
	or,=	%r2,%r2,%r2
	addil	L%(sys_call_table64-sys_call_table), %r1
	ldo	R%sys_call_table(%r1), %r19
	or,=	%r2,%r2,%r2
	ldo	R%sys_call_table64(%r1), %r19
#else
	ldil	L%sys_call_table, %r1
	ldo     R%sys_call_table(%r1), %r19
#endif	
	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
	b,n	.Lsyscall_nosys
[...]

The bug is that comiclr, the logic is messed.

If __NR_Linux_syscalls is greater than or equal to the syscall number,
nullify the next instruction (skip the branch) and process the syscall.

The problem with this is that when they are equal, it means we're
off-by-one past the end of the syscall table.

comiclr,>>= should be comiclr,>>

This has been broken for a very long time. :/

Cheers,
	Kyle
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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: [parisc-linux] [PARISC] Fix bug when syscall nr is
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From: Kyle McMartin <kyle@minerva.i.cabal.ca>

The bug was that we were comparing __NR_syscalls to be greater or equal
to the syscall number stored in %r20. __NR_syscalls is one greater than
the last syscall though, so we're loading one entry beyond the end of the
syscall table, and trying to jump to it.

Fix this by only checking that we're greater, alternatively, we could
have compared to (__NR_Linux_syscalls - 1)

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 arch/parisc/kernel/syscall.S |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 91b2a48..56f6231 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -198,7 +198,7 @@ linux_gateway_entry:
 	ldil	L%sys_call_table, %r1
 	ldo     R%sys_call_table(%r1), %r19
 #endif	
-	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
+	comiclr,>>	__NR_Linux_syscalls, %r20, %r0
 	b,n	.Lsyscall_nosys
 	
 	LDREGX  %r20(%r19), %r19
-- 
1.5.1.3

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> I don't suppose you could strace in a chroot with a older working glibc
> and see what syscalls are there?

Probably, I won't have time until next weekend.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> However, svn is still behaving wierdly:

Running svn cleanup with strace, these are the last few syscalls:

lstat64("libgcc/config/ia64/.svn/tmp/propsbase", 0xc02b6f08) = -1 ENOENT (No such file or directory)
gettimeofday({1180920486, 457857}, NULL) = 0
_newselect(0, NULL, NULL, NULL, {0, 642143}) = 0 (Timeout)
write(2, "svn: Can\'t read directory \'libgc"..., 112svn: Can't read directory 'libgcc/config/ia64/.svn/tmp': Partial results are valid but processing is incomplete
) = 112
close(3)                                = 0
brk(0x80000)                            = 0x80000
exit_group(1)                           = ?
Process 1357 detached

I wonder if there is a problem with lstat64.  Is this one of the syscalls
that was added recently?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Xref: news.gmane.org gmane.linux.ports.parisc:24632

On Sun, Jun 03, 2007 at 09:37:12PM -0400, John David Anglin wrote:
> Running svn cleanup with strace, these are the last few syscalls:
> 
> lstat64("libgcc/config/ia64/.svn/tmp/propsbase", 0xc02b6f08) = -1 ENOENT (No such file or directory)
> gettimeofday({1180920486, 457857}, NULL) = 0
> _newselect(0, NULL, NULL, NULL, {0, 642143}) = 0 (Timeout)
> write(2, "svn: Can\'t read directory \'libgc"..., 112svn: Can't read directory 'libgcc/config/ia64/.svn/tmp': Partial results are valid but processing is incomplete
> ) = 112
> close(3)                                = 0
> brk(0x80000)                            = 0x80000
> exit_group(1)                           = ?
> Process 1357 detached
> 

I don't suppose you could strace in a chroot with a older working glibc
and see what syscalls are there?

I don't see anything offhand that would have changed about this here.

Cheers,
	Kyle


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Subject: [parisc-linux] [PARISC] Fix kernel panic in check_ivt
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From: Kyle McMartin <kyle@parisc-linux.org>

check_ivt had some seriously broken code wrt function pointers on
parisc64. Instead of referencing the hpmc code via a function pointer,
export symbols and reference it as a const array.

Thanks to jda for pointing out the broken 64-bit func ptr handling.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 arch/parisc/kernel/hpmc.S  |    7 ++++---
 arch/parisc/kernel/traps.c |    8 ++++----
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index d8baa15..abda491 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -79,6 +79,8 @@ END(hpmc_pim_data)
 	.text
 
 	.import intr_save, code
+	.export __os_hpmc, data
+__os_hpmc:
 ENTRY(os_hpmc)
 
 	/*
@@ -295,8 +297,7 @@ os_hpmc_6:
 	b .
 	nop
 ENDPROC(os_hpmc)
-
-	/* this label used to compute os_hpmc checksum */
-ENTRY(os_hpmc_end)
+__os_hpmc_end:
+	.export __os_hpmc_end, data 	/* this label used to compute os_hpmc checksum */
 
 	nop
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 0ba1d3d..e8b977a 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -807,8 +807,8 @@ int __init check_ivt(void *iva)
 	u32 *ivap;
 	u32 *hpmcp;
 	u32 length;
-	extern void os_hpmc(void);
-	extern void os_hpmc_end(void);
+	extern const u32 __os_hpmc[];
+	extern const u32 __os_hpmc_end[];
 
 	if (strcmp((char *)iva, "cows can fly"))
 		return -1;
@@ -820,10 +820,10 @@ int __init check_ivt(void *iva)
 
 	/* Compute Checksum for HPMC handler */
 
-	length = (u32)((unsigned long)os_hpmc_end - (unsigned long)os_hpmc);
+	length = __os_hpmc_end - __os_hpmc;
 	ivap[7] = length;
 
-	hpmcp = (u32 *)os_hpmc;
+	hpmcp = (u32 *)__os_hpmc;
 
 	for (i=0; i<length/4; i++)
 	    check += *hpmcp++;
-- 
1.5.1.3

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On Mon, Jun 04, 2007 at 01:49:54AM -0400, Kyle McMartin wrote:
> From: Kyle McMartin <kyle@parisc-linux.org>
> 
> check_ivt had some seriously broken code wrt function pointers on
> parisc64. Instead of referencing the hpmc code via a function pointer,
> export symbols and reference it as a const array.
> 
> Thanks to jda for pointing out the broken 64-bit func ptr handling.
> 
> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

This looks good to me...please push to your git tree.
Tested on 32-bit (c3k).

Acked-by: Grant Grundler <grundler@parisc-linux.org>

thanks (jda and kyle),
grant

> ---
>  arch/parisc/kernel/hpmc.S  |    7 ++++---
>  arch/parisc/kernel/traps.c |    8 ++++----
>  2 files changed, 8 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
> index d8baa15..abda491 100644
> --- a/arch/parisc/kernel/hpmc.S
> +++ b/arch/parisc/kernel/hpmc.S
> @@ -79,6 +79,8 @@ END(hpmc_pim_data)
>  	.text
>  
>  	.import intr_save, code
> +	.export __os_hpmc, data
> +__os_hpmc:
>  ENTRY(os_hpmc)
>  
>  	/*
> @@ -295,8 +297,7 @@ os_hpmc_6:
>  	b .
>  	nop
>  ENDPROC(os_hpmc)
> -
> -	/* this label used to compute os_hpmc checksum */
> -ENTRY(os_hpmc_end)
> +__os_hpmc_end:
> +	.export __os_hpmc_end, data 	/* this label used to compute os_hpmc checksum */
>  
>  	nop
> diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
> index 0ba1d3d..e8b977a 100644
> --- a/arch/parisc/kernel/traps.c
> +++ b/arch/parisc/kernel/traps.c
> @@ -807,8 +807,8 @@ int __init check_ivt(void *iva)
>  	u32 *ivap;
>  	u32 *hpmcp;
>  	u32 length;
> -	extern void os_hpmc(void);
> -	extern void os_hpmc_end(void);
> +	extern const u32 __os_hpmc[];
> +	extern const u32 __os_hpmc_end[];
>  
>  	if (strcmp((char *)iva, "cows can fly"))
>  		return -1;
> @@ -820,10 +820,10 @@ int __init check_ivt(void *iva)
>  
>  	/* Compute Checksum for HPMC handler */
>  
> -	length = (u32)((unsigned long)os_hpmc_end - (unsigned long)os_hpmc);
> +	length = __os_hpmc_end - __os_hpmc;
>  	ivap[7] = length;
>  
> -	hpmcp = (u32 *)os_hpmc;
> +	hpmcp = (u32 *)__os_hpmc;
>  
>  	for (i=0; i<length/4; i++)
>  	    check += *hpmcp++;
> -- 
> 1.5.1.3
> 
> _______________________________________________
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> parisc-linux@lists.parisc-linux.org
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On Mon, Jun 04, 2007 at 01:49:54AM -0400, Kyle McMartin wrote:
> From: Kyle McMartin <kyle@parisc-linux.org>
> 
> check_ivt had some seriously broken code wrt function pointers on
> parisc64. Instead of referencing the hpmc code via a function pointer,
> export symbols and reference it as a const array.
> 
> Thanks to jda for pointing out the broken 64-bit func ptr handling.
> 

Better(*) patch below...

[ Well, simpler is better, right? ]

diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index d8baa15..43b41df 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -295,8 +295,5 @@ os_hpmc_6:
 	b .
 	nop
 ENDPROC(os_hpmc)
-
-	/* this label used to compute os_hpmc checksum */
-ENTRY(os_hpmc_end)
-
+ENTRY(os_hpmc_end)	/* this label used to compute os_hpmc checksum */
 	nop
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 0ba1d3d..c3ec9f1 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -802,13 +802,14 @@ void handle_interruption(int code, struct pt_regs *regs)
 
 int __init check_ivt(void *iva)
 {
+	extern const u32 os_hpmc[];
+	extern const u32 os_hpmc_end[];
+
 	int i;
 	u32 check = 0;
 	u32 *ivap;
 	u32 *hpmcp;
 	u32 length;
-	extern void os_hpmc(void);
-	extern void os_hpmc_end(void);
 
 	if (strcmp((char *)iva, "cows can fly"))
 		return -1;
@@ -820,7 +821,7 @@ int __init check_ivt(void *iva)
 
 	/* Compute Checksum for HPMC handler */
 
-	length = (u32)((unsigned long)os_hpmc_end - (unsigned long)os_hpmc);
+	length = os_hpmc_end - os_hpmc;
 	ivap[7] = length;
 
 	hpmcp = (u32 *)os_hpmc;
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> >      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > PSW: 00001000000001000000011100001110 Not tainted
> > r00-03  000000000804070e 00000000405107c0 000000004051aed4 0000000040103000
> > r04-07  0000000040503fc0 0000000000480000 00000000fffffff0 00000000f040dd30
> > r08-11  0000000000000258 0000000000000001 000000000804000e 0000000040514634
> > r12-15  0000000000000000 0000000000000001 0000000000000001 00000000000225c4
> > r16-19  00000000f0d00b0c 0000000000000000 00000000000f76f8 0000000080000000
> > r20-23  00000000e208b185 000000003ffffd90 0000000040103020 00000000404e5300
> > r24-27  0000000000000000 00000000403c3491 000000004010300d 0000000040503fc0
> > r28-31  00000000e208b185 00000000404c0260 00000000404c0290 000000000fec6fc0
> > sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> > sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> > 
> > IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004051af34 000000004051af38
> >  IIR: 0e60109c    ISR: 0000000000000000  IOR: 0000000080000000
> >  CPU:        0   CR30: 00000000404c0000 CR31: 00000000404c4000
> >  ORIG_R28: 00000000401385a4
> >  IAOQ[0]: check_ivt+0x84/0xe0
> >  IAOQ[1]: check_ivt+0x88/0xe0
> >  RP(r2): check_ivt+0x24/0xe0
> > Kernel panic - not syncing: Kernel Fault
> > <0>Rebooting in 5 seconds..
> 
> binutils is fucked.

I don't think so.  There's some wierd stuff in check_ivt.  It looks
like the function is trying to see if it can compute a checksum for
the os_hpmc function without causing a panic.  However, the function
pointer stuff is all wrong.  Note that 32 and 64-bit function pointer
handling is completely different.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, Jun 04, 2007 at 02:23:15AM -0400, Kyle McMartin wrote:
> @@ -802,13 +802,14 @@ void handle_interruption(int code, struct pt_regs *regs)
>  
>  int __init check_ivt(void *iva)
>  {
> +	extern const u32 os_hpmc[];
> +	extern const u32 os_hpmc_end[];

Cute.  If it works, it's cleaner code, so by all means.

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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Sun, Jun 03, 2007 at 09:02:24PM -0400, John David Anglin wrote:
> 
> I don't think so.  There's some wierd stuff in check_ivt.  It looks
> like the function is trying to see if it can compute a checksum for
> the os_hpmc function without causing a panic.  However, the function
> pointer stuff is all wrong.  Note that 32 and 64-bit function pointer
> handling is completely different.
> 

Er, then why didn't it complain before?

Can you do a quick test if I cook up a patch?
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Subject: Re: [parisc-linux] -pie is broken on hppa
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Cc: debian-hppa@lists.debian.org,
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To: kyle@mcmartin.ca (Kyle McMartin)
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Xref: news.gmane.org gmane.linux.ports.parisc:24639

> Er, then why didn't it complain before?

I think the linker script may have changed.

> Can you do a quick test if I cook up a patch?

Yes.  I disabled the code after "cows can fly".  2.6.22-rc2
now boots and df works.s

However, svn is still behaving wierdly:
Badness at 000000004018e2cc
Seems to be in __kmalloc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] [PATCH 2/4] audit: rework execve audit
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Cc: Andrew Morton <akpm@osdl.org>,
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Xref: news.gmane.org gmane.linux.ports.parisc:24640

The purpose of audit_bprm() is to log the argv array to a userspace daemon at
the end of the execve system call. Since user-space hasn't had time to run,
this array is still in pristine state on the process' stack; so no need to copy
it, we can just grab it from there.

In order to minimize the damage to audit_log_*() copy each string into a
temporary kernel buffer first.

Currently the audit code requires that the full argument vector fits in a
single packet. So currently it does clip the argv size to a (sysctl) limit, but
only when execve auditing is enabled.

If the audit protocol gets extended to allow for multiple packets this check
can be removed.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ollie Wild <aaw@google.com>
Cc: linux-audit@redhat.com
---
 fs/exec.c               |    3 +
 include/linux/binfmts.h |    1 
 include/linux/sysctl.h  |    1 
 kernel/audit.c          |   16 +++++++++
 kernel/audit.h          |    1 
 kernel/auditsc.c        |   82 ++++++++++++++++++++++++++++++++----------------
 kernel/sysctl.c         |   11 ++++++
 7 files changed, 89 insertions(+), 26 deletions(-)

Index: linux-2.6-2/kernel/auditsc.c
===================================================================
--- linux-2.6-2.orig/kernel/auditsc.c	2007-06-05 09:51:53.000000000 +0200
+++ linux-2.6-2/kernel/auditsc.c	2007-06-05 10:03:31.000000000 +0200
@@ -156,7 +156,7 @@ struct audit_aux_data_execve {
 	struct audit_aux_data	d;
 	int argc;
 	int envc;
-	char mem[0];
+	struct mm_struct *mm;
 };
 
 struct audit_aux_data_socketcall {
@@ -834,6 +834,47 @@ static int audit_log_pid_context(struct 
 	return rc;
 }
 
+static void audit_log_execve_info(struct audit_buffer *ab,
+		struct audit_aux_data_execve *axi)
+{
+	int i;
+	long len;
+	const char __user *p = (const char __user *)axi->mm->arg_start;
+
+	if (axi->mm != current->mm)
+		return; /* execve failed, no additional info */
+
+	for (i = 0; i < axi->argc; i++, p += len) {
+		long ret;
+		char *tmp;
+
+		len = strnlen_user(p, MAX_ARG_PAGES*PAGE_SIZE);
+		/*
+		 * We just created this mm, if we can't find the strings
+		 * we just copied in something is _very_ wrong.
+		 */
+		BUG_ON(!len);
+
+		tmp = kmalloc(len, GFP_KERNEL);
+		if (!tmp) {
+			audit_panic("out of memory for argv string\n");
+			break;
+		}
+
+		ret = copy_from_user(tmp, p, len);
+		/*
+		 * There is no reason for this copy to be short.
+		 */
+		BUG_ON(ret);
+
+		audit_log_format(ab, "a%d=", i);
+		audit_log_untrustedstring(ab, tmp);
+		audit_log_format(ab, "\n");
+
+		kfree(tmp);
+	}
+}
+
 static void audit_log_exit(struct audit_context *context, struct task_struct *tsk)
 {
 	int i, call_panic = 0;
@@ -974,13 +1016,7 @@ static void audit_log_exit(struct audit_
 
 		case AUDIT_EXECVE: {
 			struct audit_aux_data_execve *axi = (void *)aux;
-			int i;
-			const char *p;
-			for (i = 0, p = axi->mem; i < axi->argc; i++) {
-				audit_log_format(ab, "a%d=", i);
-				p = audit_log_untrustedstring(ab, p);
-				audit_log_format(ab, "\n");
-			}
+			audit_log_execve_info(ab, axi);
 			break; }
 
 		case AUDIT_SOCKETCALL: {
@@ -1824,32 +1860,31 @@ int __audit_ipc_set_perm(unsigned long q
 	return 0;
 }
 
+int audit_argv_kb = 32;
+
 int audit_bprm(struct linux_binprm *bprm)
 {
 	struct audit_aux_data_execve *ax;
 	struct audit_context *context = current->audit_context;
-	unsigned long p, next;
-	void *to;
 
 	if (likely(!audit_enabled || !context || context->dummy))
 		return 0;
 
-	ax = kmalloc(sizeof(*ax) + PAGE_SIZE * MAX_ARG_PAGES - bprm->p,
-				GFP_KERNEL);
+	/*
+	 * Even though the stack code doesn't limit the arg+env size any more,
+	 * the audit code requires that _all_ arguments be logged in a single
+	 * netlink skb. Hence cap it :-(
+	 */
+	if (bprm->argv_len > (audit_argv_kb << 10))
+		return -E2BIG;
+
+	ax = kmalloc(sizeof(*ax), GFP_KERNEL);
 	if (!ax)
 		return -ENOMEM;
 
 	ax->argc = bprm->argc;
 	ax->envc = bprm->envc;
-	for (p = bprm->p, to = ax->mem; p < MAX_ARG_PAGES*PAGE_SIZE; p = next) {
-		struct page *page = bprm->page[p / PAGE_SIZE];
-		void *kaddr = kmap(page);
-		next = (p + PAGE_SIZE) & ~(PAGE_SIZE - 1);
-		memcpy(to, kaddr + (p & (PAGE_SIZE - 1)), next - p);
-		to += next - p;
-		kunmap(page);
-	}
-
+	ax->mm = bprm->mm;
 	ax->d.type = AUDIT_EXECVE;
 	ax->d.next = context->aux;
 	context->aux = (void *)ax;
Index: linux-2.6-2/fs/exec.c
===================================================================
--- linux-2.6-2.orig/fs/exec.c	2007-06-05 09:51:42.000000000 +0200
+++ linux-2.6-2/fs/exec.c	2007-06-05 10:03:11.000000000 +0200
@@ -1154,6 +1154,7 @@ int do_execve(char * filename,
 {
 	struct linux_binprm *bprm;
 	struct file *file;
+	unsigned long tmp;
 	int retval;
 	int i;
 
@@ -1208,9 +1209,11 @@ int do_execve(char * filename,
 	if (retval < 0)
 		goto out;
 
+	tmp = bprm->p;
 	retval = copy_strings(bprm->argc, argv, bprm);
 	if (retval < 0)
 		goto out;
+	bprm->argv_len = tmp - bprm->p;
 
 	retval = search_binary_handler(bprm,regs);
 	if (retval >= 0) {
Index: linux-2.6-2/include/linux/binfmts.h
===================================================================
--- linux-2.6-2.orig/include/linux/binfmts.h	2007-06-05 09:51:44.000000000 +0200
+++ linux-2.6-2/include/linux/binfmts.h	2007-06-05 10:03:11.000000000 +0200
@@ -40,6 +40,7 @@ struct linux_binprm{
 	unsigned interp_flags;
 	unsigned interp_data;
 	unsigned long loader, exec;
+	unsigned long argv_len;
 };
 
 #define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0
Index: linux-2.6-2/kernel/sysctl.c
===================================================================
--- linux-2.6-2.orig/kernel/sysctl.c	2007-06-05 09:51:53.000000000 +0200
+++ linux-2.6-2/kernel/sysctl.c	2007-06-05 10:04:05.000000000 +0200
@@ -78,6 +78,7 @@ extern int percpu_pagelist_fraction;
 extern int compat_log;
 extern int maps_protect;
 extern int sysctl_stat_interval;
+extern int audit_argv_kb;
 
 /* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */
 static int maxolduid = 65535;
@@ -615,6 +616,16 @@ static ctl_table kern_table[] = {
 		.proc_handler   = &proc_dointvec,
 	},
 #endif
+#ifdef CONFIG_AUDITSYSCALL
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "audit_argv_kb",
+		.data		= &audit_argv_kb,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+#endif
 
 	{ .ctl_name = 0 }
 };

-- 

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Subject: [parisc-linux] [PATCH 1/4] arch: personality independent stack top
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Xref: news.gmane.org gmane.linux.ports.parisc:24641

New arch macro STACK_TOP_MAX it gives the larges valid stack address for
the architecture in question.

It differs from STACK_TOP in that it will not distinguish between personalities
but will always return the largest possible address.

This is used to create the initial stack on execve, which we will move down
to the proper location once the binfmt code has figured out where that is.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ollie Wild <aaw@google.com>
---
 fs/exec.c                    |    2 +-
 include/asm-alpha/a.out.h    |    2 ++
 include/asm-arm/a.out.h      |    1 +
 include/asm-arm26/a.out.h    |    1 +
 include/asm-avr32/a.out.h    |    1 +
 include/asm-cris/a.out.h     |    1 +
 include/asm-frv/mem-layout.h |    1 +
 include/asm-h8300/a.out.h    |    1 +
 include/asm-i386/a.out.h     |    1 +
 include/asm-ia64/ustack.h    |    1 +
 include/asm-m32r/a.out.h     |    1 +
 include/asm-m68k/a.out.h     |    1 +
 include/asm-mips/a.out.h     |    1 +
 include/asm-parisc/a.out.h   |    1 +
 include/asm-powerpc/a.out.h  |    3 +++
 include/asm-s390/a.out.h     |    1 +
 include/asm-sh/a.out.h       |    1 +
 include/asm-sh64/a.out.h     |    1 +
 include/asm-sparc/a.out.h    |    1 +
 include/asm-sparc64/a.out.h  |    2 ++
 include/asm-um/a.out.h       |    2 ++
 include/asm-x86_64/a.out.h   |    3 ++-
 include/asm-xtensa/a.out.h   |    1 +
 23 files changed, 29 insertions(+), 2 deletions(-)

Index: linux-2.6-2/include/asm-alpha/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-alpha/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-alpha/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -101,6 +101,8 @@ struct exec
 #define STACK_TOP \
   (current->personality & ADDR_LIMIT_32BIT ? 0x80000000 : 0x00120000000UL)
 
+#define STACK_TOP_MAX	0x00120000000UL
+
 #endif
 
 #endif /* __A_OUT_GNU_H__ */
Index: linux-2.6-2/include/asm-arm/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-arm/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-arm/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -30,6 +30,7 @@ struct exec
 #ifdef __KERNEL__
 #define STACK_TOP	((current->personality == PER_LINUX_32BIT) ? \
 			 TASK_SIZE : TASK_SIZE_26)
+#define STACK_TOP_MAX	TASK_SIZE
 #endif
 
 #ifndef LIBRARY_START_TEXT
Index: linux-2.6-2/include/asm-arm26/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-arm26/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-arm26/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -29,6 +29,7 @@ struct exec
 
 #ifdef __KERNEL__
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 #endif
 
 #ifndef LIBRARY_START_TEXT
Index: linux-2.6-2/include/asm-avr32/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-avr32/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-avr32/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -20,6 +20,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-cris/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-cris/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-cris/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -8,6 +8,7 @@
 
 /* grabbed from the intel stuff  */   
 #define STACK_TOP TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 
 struct exec
Index: linux-2.6-2/include/asm-frv/mem-layout.h
===================================================================
--- linux-2.6-2.orig/include/asm-frv/mem-layout.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-frv/mem-layout.h	2007-06-01 10:27:30.000000000 +0200
@@ -60,6 +60,7 @@
  */
 #define BRK_BASE			__UL(2 * 1024 * 1024 + PAGE_SIZE)
 #define STACK_TOP			__UL(2 * 1024 * 1024)
+#define STACK_TOP_MAX	STACK_TOP
 
 /* userspace process size */
 #ifdef CONFIG_MMU
Index: linux-2.6-2/include/asm-h8300/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-h8300/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-h8300/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -20,6 +20,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-i386/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-i386/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-i386/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -20,6 +20,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-ia64/ustack.h
===================================================================
--- linux-2.6-2.orig/include/asm-ia64/ustack.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-ia64/ustack.h	2007-06-01 10:27:30.000000000 +0200
@@ -11,6 +11,7 @@
 /* The absolute hard limit for stack size is 1/2 of the mappable space in the region */
 #define MAX_USER_STACK_SIZE	(RGN_MAP_LIMIT/2)
 #define STACK_TOP		(0x6000000000000000UL + RGN_MAP_LIMIT)
+#define STACK_TOP_MAX		STACK_TOP
 #endif
 
 /* Make a default stack size of 2GiB */
Index: linux-2.6-2/include/asm-m32r/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-m32r/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-m32r/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -20,6 +20,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-m68k/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-m68k/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-m68k/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -20,6 +20,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-mips/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-mips/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-mips/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -40,6 +40,7 @@ struct exec
 #ifdef CONFIG_64BIT
 #define STACK_TOP	(current->thread.mflags & MF_32BIT_ADDR ? TASK_SIZE32 : TASK_SIZE)
 #endif
+#define STACK_TOP_MAX	TASK_SIZE
 
 #endif
 
Index: linux-2.6-2/include/asm-parisc/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-parisc/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-parisc/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -23,6 +23,7 @@ struct exec
  * prumpf */
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
 #endif
 
Index: linux-2.6-2/include/asm-powerpc/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-powerpc/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-powerpc/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -26,9 +26,12 @@ struct exec
 #define STACK_TOP (test_thread_flag(TIF_32BIT) ? \
 		   STACK_TOP_USER32 : STACK_TOP_USER64)
 
+#define STACK_TOP_MAX STACK_TOP_USER64
+
 #else /* __powerpc64__ */
 
 #define STACK_TOP TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif /* __powerpc64__ */
 #endif /* __KERNEL__ */
Index: linux-2.6-2/include/asm-s390/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-s390/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-s390/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -32,6 +32,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
 #endif
 
Index: linux-2.6-2/include/asm-sh/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-sh/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-sh/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -20,6 +20,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-sh64/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-sh64/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-sh64/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -31,6 +31,7 @@ struct exec
 #ifdef __KERNEL__
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif
 
Index: linux-2.6-2/include/asm-sparc/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-sparc/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-sparc/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -92,6 +92,7 @@ struct relocation_info /* used when head
 #include <asm/page.h>
 
 #define STACK_TOP	(PAGE_OFFSET - PAGE_SIZE)
+#define STACK_TOP_MAX	STACK_TOP
 
 #endif /* __KERNEL__ */
 
Index: linux-2.6-2/include/asm-sparc64/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-sparc64/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-sparc64/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -101,6 +101,8 @@ struct relocation_info /* used when head
 #define STACK_TOP (test_thread_flag(TIF_32BIT) ? \
 		   STACK_TOP32 : STACK_TOP64)
 
+#define STACK_TOP_MAX STACK_TOP64
+
 #endif
 
 #endif /* !(__ASSEMBLY__) */
Index: linux-2.6-2/include/asm-um/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-um/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-um/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -16,4 +16,6 @@ extern int honeypot;
 #define STACK_TOP \
 	CHOOSE_MODE((honeypot ? host_task_size : task_size), task_size)
 
+#define STACK_TOP_MAX	STACK_TOP
+
 #endif
Index: linux-2.6-2/include/asm-x86_64/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-x86_64/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-x86_64/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -21,7 +21,8 @@ struct exec
 
 #ifdef __KERNEL__
 #include <linux/thread_info.h>
-#define STACK_TOP TASK_SIZE
+#define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	TASK_SIZE64
 #endif
 
 #endif /* __A_OUT_GNU_H__ */
Index: linux-2.6-2/include/asm-xtensa/a.out.h
===================================================================
--- linux-2.6-2.orig/include/asm-xtensa/a.out.h	2007-06-01 10:27:27.000000000 +0200
+++ linux-2.6-2/include/asm-xtensa/a.out.h	2007-06-01 10:27:30.000000000 +0200
@@ -17,6 +17,7 @@
 /* Note: the kernel needs the a.out definitions, even if only ELF is used. */
 
 #define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
 
 struct exec
 {

-- 

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From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH 3/4] mm: move_page_tables{,_up}
Date: Tue, 05 Jun 2007 17:05:26 +0200
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Cc: Andrew Morton <akpm@osdl.org>,
 Ingo Molnar <mingo@elte.hu>,
 Andi Kleen <ak@suse.de>,
 Ollie Wild <aaw@google.com>,
 Peter Zijlstra <a.p.zijlstra@chello.nl>
To: linux-kernel@vger.kernel.org,
 parisc-linux@lists.parisc-linux.org,
 linux-mm@kvack.org,
 linux-arch@vger.kernel.org
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Xref: news.gmane.org gmane.linux.ports.parisc:24642

Provide functions for moving page tables upwards.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ollie Wild <aaw@google.com>
---
 include/linux/mm.h |    7 +++
 mm/mremap.c        |  105 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 110 insertions(+), 2 deletions(-)

Index: linux-2.6-2/include/linux/mm.h
===================================================================
--- linux-2.6-2.orig/include/linux/mm.h	2007-06-01 10:50:58.000000000 +0200
+++ linux-2.6-2/include/linux/mm.h	2007-06-01 10:57:26.000000000 +0200
@@ -788,6 +787,12 @@ int FASTCALL(set_page_dirty(struct page 
 int set_page_dirty_lock(struct page *page);
 int clear_page_dirty_for_io(struct page *page);
 
+extern unsigned long move_page_tables(struct vm_area_struct *vma,
+		unsigned long old_addr, struct vm_area_struct *new_vma,
+		unsigned long new_addr, unsigned long len);
+extern unsigned long move_page_tables_up(struct vm_area_struct *vma,
+		unsigned long old_addr, struct vm_area_struct *new_vma,
+		unsigned long new_addr, unsigned long len);
 extern unsigned long do_mremap(unsigned long addr,
 			       unsigned long old_len, unsigned long new_len,
 			       unsigned long flags, unsigned long new_addr);
Index: linux-2.6-2/mm/mremap.c
===================================================================
--- linux-2.6-2.orig/mm/mremap.c	2007-06-01 10:50:58.000000000 +0200
+++ linux-2.6-2/mm/mremap.c	2007-06-01 10:57:45.000000000 +0200
@@ -118,9 +118,63 @@ static void move_ptes(struct vm_area_str
 		spin_unlock(&mapping->i_mmap_lock);
 }
 
+static void move_ptes_up(struct vm_area_struct *vma, pmd_t *old_pmd,
+		unsigned long old_addr, unsigned long old_end,
+		struct vm_area_struct *new_vma, pmd_t *new_pmd,
+		unsigned long new_addr)
+{
+	struct address_space *mapping = NULL;
+	struct mm_struct *mm = vma->vm_mm;
+	pte_t *old_pte, *new_pte, pte;
+	spinlock_t *old_ptl, *new_ptl;
+	unsigned long new_end = new_addr + (old_end - old_addr);
+
+	if (vma->vm_file) {
+		/*
+		 * Subtle point from Rajesh Venkatasubramanian: before
+		 * moving file-based ptes, we must lock vmtruncate out,
+		 * since it might clean the dst vma before the src vma,
+		 * and we propagate stale pages into the dst afterward.
+		 */
+		mapping = vma->vm_file->f_mapping;
+		spin_lock(&mapping->i_mmap_lock);
+		if (new_vma->vm_truncate_count &&
+		    new_vma->vm_truncate_count != vma->vm_truncate_count)
+			new_vma->vm_truncate_count = 0;
+	}
+
+	/*
+	 * We don't have to worry about the ordering of src and dst
+	 * pte locks because exclusive mmap_sem prevents deadlock.
+	 */
+	old_pte = pte_offset_map_lock(mm, old_pmd, old_end-1, &old_ptl);
+ 	new_pte = pte_offset_map_nested(new_pmd, new_end-1);
+	new_ptl = pte_lockptr(mm, new_pmd);
+	if (new_ptl != old_ptl)
+		spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
+	arch_enter_lazy_mmu_mode();
+
+	for (; old_end > old_addr; old_pte--, old_end -= PAGE_SIZE,
+				   new_pte--, new_end -= PAGE_SIZE) {
+		if (pte_none(*old_pte))
+			continue;
+		pte = ptep_clear_flush(vma, old_end-1, old_pte);
+		pte = move_pte(pte, new_vma->vm_page_prot, old_end-1, new_end-1);
+		set_pte_at(mm, new_end-1, new_pte, pte);
+	}
+
+	arch_leave_lazy_mmu_mode();
+	if (new_ptl != old_ptl)
+		spin_unlock(new_ptl);
+	pte_unmap_nested(new_pte - 1);
+	pte_unmap_unlock(old_pte - 1, old_ptl);
+	if (mapping)
+		spin_unlock(&mapping->i_mmap_lock);
+}
+
 #define LATENCY_LIMIT	(64 * PAGE_SIZE)
 
-static unsigned long move_page_tables(struct vm_area_struct *vma,
+unsigned long move_page_tables(struct vm_area_struct *vma,
 		unsigned long old_addr, struct vm_area_struct *new_vma,
 		unsigned long new_addr, unsigned long len)
 {
@@ -132,21 +186,25 @@ static unsigned long move_page_tables(st
 
 	for (; old_addr < old_end; old_addr += extent, new_addr += extent) {
 		cond_resched();
+
 		next = (old_addr + PMD_SIZE) & PMD_MASK;
 		if (next - 1 > old_end)
 			next = old_end;
 		extent = next - old_addr;
+
 		old_pmd = get_old_pmd(vma->vm_mm, old_addr);
 		if (!old_pmd)
 			continue;
 		new_pmd = alloc_new_pmd(vma->vm_mm, new_addr);
 		if (!new_pmd)
 			break;
+
 		next = (new_addr + PMD_SIZE) & PMD_MASK;
 		if (extent > next - new_addr)
 			extent = next - new_addr;
 		if (extent > LATENCY_LIMIT)
 			extent = LATENCY_LIMIT;
+
 		move_ptes(vma, old_pmd, old_addr, old_addr + extent,
 				new_vma, new_pmd, new_addr);
 	}
@@ -154,6 +212,51 @@ static unsigned long move_page_tables(st
 	return len + old_addr - old_end;	/* how much done */
 }
 
+unsigned long move_page_tables_up(struct vm_area_struct *vma,
+		unsigned long old_addr, struct vm_area_struct *new_vma,
+		unsigned long new_addr, unsigned long len)
+{
+	unsigned long extent, prev, old_end, new_end;
+	pmd_t *old_pmd, *new_pmd;
+
+	old_end = old_addr + len;
+	new_end = new_addr + len;
+	flush_cache_range(vma, old_addr, old_end);
+
+	for (; old_end > old_addr; old_end -= extent, new_end -= extent) {
+		cond_resched();
+
+		/*
+		 * calculate how far till prev PMD boundary for old
+		 */
+		prev = (old_end - 1) & PMD_MASK;
+		if (prev < old_addr)
+			prev = old_addr;
+		extent = old_end - prev;
+
+		old_pmd = get_old_pmd(vma->vm_mm, old_end-1);
+		if (!old_pmd)
+			continue;
+		new_pmd = alloc_new_pmd(vma->vm_mm, new_end-1);
+		if (!new_pmd)
+			break;
+
+		/*
+		 * calculate and clip to prev PMD boundary for new
+		 */
+		prev = (new_end - 1) & PMD_MASK;
+		if (extent > new_end - prev)
+			extent = new_end - prev;
+		if (extent > LATENCY_LIMIT)
+			extent = LATENCY_LIMIT;
+
+		move_ptes_up(vma, old_pmd, old_end - extent, old_end,
+				new_vma, new_pmd, new_end - extent);
+	}
+
+	return old_addr + len - old_end;
+}
+
 static unsigned long move_vma(struct vm_area_struct *vma,
 		unsigned long old_addr, unsigned long old_len,
 		unsigned long new_len, unsigned long new_addr)

-- 

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From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH 4/4] mm: variable length argument support
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Cc: Andrew Morton <akpm@osdl.org>,
 Ingo Molnar <mingo@elte.hu>,
 Andi Kleen <ak@suse.de>,
 Ollie Wild <aaw@google.com>,
 Peter Zijlstra <a.p.zijlstra@chello.nl>
To: linux-kernel@vger.kernel.org,
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Xref: news.gmane.org gmane.linux.ports.parisc:24643

From: Ollie Wild <aaw@google.com>

Remove the arg+env limit of MAX_ARG_PAGES by copying the strings directly
>from the old mm into the new mm.

We create the new mm before the binfmt code runs, and place the new stack
at the very top of the address space. Once the binfmt code runs and figures
out where the stack should be, we move it downwards.

It is a bit peculiar in that we have one task with two mm's, one of which is
inactive.

Signed-off-by: Ollie Wild <aaw@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
 arch/ia64/ia32/binfmt_elf32.c     |   61 ----
 arch/um/kernel/trap.c             |    2 
 arch/x86_64/ia32/ia32_aout.c      |    2 
 arch/x86_64/ia32/ia32_binfmt.c    |   58 ---
 fs/binfmt_elf.c                   |   28 +
 fs/binfmt_elf_fdpic.c             |    8 
 fs/binfmt_misc.c                  |    4 
 fs/binfmt_script.c                |    4 
 fs/compat.c                       |  130 +++-----
 fs/exec.c                         |  566 +++++++++++++++++++++++---------------
 include/asm-um/processor-i386.h   |    3 
 include/asm-um/processor-x86_64.h |    3 
 include/linux/binfmts.h           |   17 -
 include/linux/mm.h                |    7 
 kernel/auditsc.c                  |    2 
 mm/mmap.c                         |   56 ++-
 mm/mprotect.c                     |    2 
 17 files changed, 495 insertions(+), 458 deletions(-)

Index: linux-2.6-2/arch/um/kernel/trap.c
===================================================================
--- linux-2.6-2.orig/arch/um/kernel/trap.c	2007-06-05 16:23:16.000000000 +0200
+++ linux-2.6-2/arch/um/kernel/trap.c	2007-06-05 16:29:45.000000000 +0200
@@ -61,8 +61,6 @@ int handle_page_fault(unsigned long addr
 		goto good_area;
 	else if(!(vma->vm_flags & VM_GROWSDOWN))
 		goto out;
-	else if(is_user && !ARCH_IS_STACKGROW(address))
-		goto out;
 	else if(expand_stack(vma, address))
 		goto out;
 
Index: linux-2.6-2/arch/x86_64/ia32/ia32_binfmt.c
===================================================================
--- linux-2.6-2.orig/arch/x86_64/ia32/ia32_binfmt.c	2007-06-05 16:23:16.000000000 +0200
+++ linux-2.6-2/arch/x86_64/ia32/ia32_binfmt.c	2007-06-05 16:29:45.000000000 +0200
@@ -232,9 +232,6 @@ do {							\
 #define load_elf_binary load_elf32_binary
 
 #define ELF_PLAT_INIT(r, load_addr)	elf32_init(r)
-#define setup_arg_pages(bprm, stack_top, exec_stack) \
-	ia32_setup_arg_pages(bprm, stack_top, exec_stack)
-int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top, int executable_stack);
 
 #undef start_thread
 #define start_thread(regs,new_rip,new_rsp) do { \
@@ -286,61 +283,6 @@ static void elf32_init(struct pt_regs *r
 	me->thread.es = __USER_DS;
 }
 
-int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top,
-			 int executable_stack)
-{
-	unsigned long stack_base;
-	struct vm_area_struct *mpnt;
-	struct mm_struct *mm = current->mm;
-	int i, ret;
-
-	stack_base = stack_top - MAX_ARG_PAGES * PAGE_SIZE;
-	mm->arg_start = bprm->p + stack_base;
-
-	bprm->p += stack_base;
-	if (bprm->loader)
-		bprm->loader += stack_base;
-	bprm->exec += stack_base;
-
-	mpnt = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-	if (!mpnt) 
-		return -ENOMEM; 
-
-	down_write(&mm->mmap_sem);
-	{
-		mpnt->vm_mm = mm;
-		mpnt->vm_start = PAGE_MASK & (unsigned long) bprm->p;
-		mpnt->vm_end = stack_top;
-		if (executable_stack == EXSTACK_ENABLE_X)
-			mpnt->vm_flags = VM_STACK_FLAGS |  VM_EXEC;
-		else if (executable_stack == EXSTACK_DISABLE_X)
-			mpnt->vm_flags = VM_STACK_FLAGS & ~VM_EXEC;
-		else
-			mpnt->vm_flags = VM_STACK_FLAGS;
- 		mpnt->vm_page_prot = (mpnt->vm_flags & VM_EXEC) ? 
- 			PAGE_COPY_EXEC : PAGE_COPY;
-		if ((ret = insert_vm_struct(mm, mpnt))) {
-			up_write(&mm->mmap_sem);
-			kmem_cache_free(vm_area_cachep, mpnt);
-			return ret;
-		}
-		mm->stack_vm = mm->total_vm = vma_pages(mpnt);
-	} 
-
-	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
-		struct page *page = bprm->page[i];
-		if (page) {
-			bprm->page[i] = NULL;
-			install_arg_page(mpnt, page, stack_base);
-		}
-		stack_base += PAGE_SIZE;
-	}
-	up_write(&mm->mmap_sem);
-	
-	return 0;
-}
-EXPORT_SYMBOL(ia32_setup_arg_pages);
-
 #ifdef CONFIG_SYSCTL
 /* Register vsyscall32 into the ABI table */
 #include <linux/sysctl.h>
Index: linux-2.6-2/fs/binfmt_elf.c
===================================================================
--- linux-2.6-2.orig/fs/binfmt_elf.c	2007-06-05 16:23:16.000000000 +0200
+++ linux-2.6-2/fs/binfmt_elf.c	2007-06-05 16:29:45.000000000 +0200
@@ -148,6 +148,7 @@ create_elf_tables(struct linux_binprm *b
 	elf_addr_t *elf_info;
 	int ei_index = 0;
 	struct task_struct *tsk = current;
+	struct vm_area_struct *vma;
 
 	/*
 	 * If this architecture has a platform capability string, copy it
@@ -234,6 +235,15 @@ create_elf_tables(struct linux_binprm *b
 	sp = (elf_addr_t __user *)bprm->p;
 #endif
 
+
+	/*
+	 * Grow the stack manually; some architectures have a limit on how
+	 * far ahead a user-space access may be in order to grow the stack.
+	 */
+	vma = find_extend_vma(current->mm, bprm->p);
+	if (!vma)
+		return -EFAULT;
+
 	/* Now, let's put argc (and argv, envp if appropriate) on the stack */
 	if (__put_user(argc, sp++))
 		return -EFAULT;
@@ -254,8 +264,8 @@ create_elf_tables(struct linux_binprm *b
 		size_t len;
 		if (__put_user((elf_addr_t)p, argv++))
 			return -EFAULT;
-		len = strnlen_user((void __user *)p, PAGE_SIZE*MAX_ARG_PAGES);
-		if (!len || len > PAGE_SIZE*MAX_ARG_PAGES)
+		len = strnlen_user((void __user *)p, MAX_ARG_STRLEN);
+		if (!len || len > MAX_ARG_STRLEN)
 			return 0;
 		p += len;
 	}
@@ -266,8 +276,8 @@ create_elf_tables(struct linux_binprm *b
 		size_t len;
 		if (__put_user((elf_addr_t)p, envp++))
 			return -EFAULT;
-		len = strnlen_user((void __user *)p, PAGE_SIZE*MAX_ARG_PAGES);
-		if (!len || len > PAGE_SIZE*MAX_ARG_PAGES)
+		len = strnlen_user((void __user *)p, MAX_ARG_STRLEN);
+		if (!len || len > MAX_ARG_STRLEN)
 			return 0;
 		p += len;
 	}
@@ -777,10 +787,6 @@ static int load_elf_binary(struct linux_
 	}
 
 	/* OK, This is the point of no return */
-	current->mm->start_data = 0;
-	current->mm->end_data = 0;
-	current->mm->end_code = 0;
-	current->mm->mmap = NULL;
 	current->flags &= ~PF_FORKNOEXEC;
 	current->mm->def_flags = def_flags;
 
@@ -988,9 +994,13 @@ static int load_elf_binary(struct linux_
 
 	compute_creds(bprm);
 	current->flags &= ~PF_FORKNOEXEC;
-	create_elf_tables(bprm, &loc->elf_ex,
+	retval = create_elf_tables(bprm, &loc->elf_ex,
 			  (interpreter_type == INTERPRETER_AOUT),
 			  load_addr, interp_load_addr);
+	if (retval < 0) {
+		send_sig(SIGKILL, current, 0);
+		goto out;
+	}
 	/* N.B. passed_fileno might not be initialized? */
 	if (interpreter_type == INTERPRETER_AOUT)
 		current->mm->arg_start += strlen(passed_fileno) + 1;
Index: linux-2.6-2/fs/binfmt_elf_fdpic.c
===================================================================
--- linux-2.6-2.orig/fs/binfmt_elf_fdpic.c	2007-06-05 16:23:16.000000000 +0200
+++ linux-2.6-2/fs/binfmt_elf_fdpic.c	2007-06-05 16:29:45.000000000 +0200
@@ -621,8 +621,8 @@ static int create_elf_fdpic_tables(struc
 	p = (char __user *) current->mm->arg_start;
 	for (loop = bprm->argc; loop > 0; loop--) {
 		__put_user((elf_caddr_t) p, argv++);
-		len = strnlen_user(p, PAGE_SIZE * MAX_ARG_PAGES);
-		if (!len || len > PAGE_SIZE * MAX_ARG_PAGES)
+		len = strnlen_user(p, MAX_ARG_STRLEN);
+		if (!len || len > MAX_ARG_STRLEN)
 			return -EINVAL;
 		p += len;
 	}
@@ -633,8 +633,8 @@ static int create_elf_fdpic_tables(struc
 	current->mm->env_start = (unsigned long) p;
 	for (loop = bprm->envc; loop > 0; loop--) {
 		__put_user((elf_caddr_t)(unsigned long) p, envp++);
-		len = strnlen_user(p, PAGE_SIZE * MAX_ARG_PAGES);
-		if (!len || len > PAGE_SIZE * MAX_ARG_PAGES)
+		len = strnlen_user(p, MAX_ARG_STRLEN);
+		if (!len || len > MAX_ARG_STRLEN)
 			return -EINVAL;
 		p += len;
 	}
Index: linux-2.6-2/fs/binfmt_misc.c
===================================================================
--- linux-2.6-2.orig/fs/binfmt_misc.c	2007-06-05 16:23:16.000000000 +0200
+++ linux-2.6-2/fs/binfmt_misc.c	2007-06-05 16:29:45.000000000 +0200
@@ -126,7 +126,9 @@ static int load_misc_binary(struct linux
 		goto _ret;
 
 	if (!(fmt->flags & MISC_FMT_PRESERVE_ARGV0)) {
-		remove_arg_zero(bprm);
+		retval = remove_arg_zero(bprm);
+		if (retval)
+			goto _ret;
 	}
 
 	if (fmt->flags & MISC_FMT_OPEN_BINARY) {
Index: linux-2.6-2/fs/binfmt_script.c
===================================================================
--- linux-2.6-2.orig/fs/binfmt_script.c	2007-06-05 16:23:16.000000000 +0200
+++ linux-2.6-2/fs/binfmt_script.c	2007-06-05 16:29:45.000000000 +0200
@@ -67,7 +67,9 @@ static int load_script(struct linux_binp
 	 * This is done in reverse order, because of how the
 	 * user environment and arguments are stored.
 	 */
-	remove_arg_zero(bprm);
+	retval = remove_arg_zero(bprm);
+	if (retval)
+		return retval;
 	retval = copy_strings_kernel(1, &bprm->interp, bprm);
 	if (retval < 0) return retval; 
 	bprm->argc++;
Index: linux-2.6-2/fs/compat.c
===================================================================
--- linux-2.6-2.orig/fs/compat.c	2007-06-05 16:23:16.000000000 +0200
+++ linux-2.6-2/fs/compat.c	2007-06-05 16:29:45.000000000 +0200
@@ -1257,6 +1257,7 @@ static int compat_copy_strings(int argc,
 {
 	struct page *kmapped_page = NULL;
 	char *kaddr = NULL;
+	unsigned long kpos = 0;
 	int ret;
 
 	while (argc-- > 0) {
@@ -1265,92 +1266,84 @@ static int compat_copy_strings(int argc,
 		unsigned long pos;
 
 		if (get_user(str, argv+argc) ||
-			!(len = strnlen_user(compat_ptr(str), bprm->p))) {
+		    !(len = strnlen_user(compat_ptr(str), MAX_ARG_STRLEN))) {
 			ret = -EFAULT;
 			goto out;
 		}
 
-		if (bprm->p < len)  {
+		if (MAX_ARG_STRLEN < len) {
 			ret = -E2BIG;
 			goto out;
 		}
 
-		bprm->p -= len;
-		/* XXX: add architecture specific overflow check here. */
+		/* We're going to work our way backwords. */
 		pos = bprm->p;
+		str += len;
+		bprm->p -= len;
 
 		while (len > 0) {
-			int i, new, err;
 			int offset, bytes_to_copy;
-			struct page *page;
 
 			offset = pos % PAGE_SIZE;
-			i = pos/PAGE_SIZE;
-			page = bprm->page[i];
-			new = 0;
-			if (!page) {
-				page = alloc_page(GFP_HIGHUSER);
-				bprm->page[i] = page;
-				if (!page) {
-					ret = -ENOMEM;
+			if (offset == 0)
+				offset = PAGE_SIZE;
+
+			bytes_to_copy = offset;
+			if (bytes_to_copy > len)
+				bytes_to_copy = len;
+
+			offset -= bytes_to_copy;
+			pos -= bytes_to_copy;
+			str -= bytes_to_copy;
+			len -= bytes_to_copy;
+
+			if (!kmapped_page || kpos != (pos & PAGE_MASK)) {
+				struct page *page;
+
+#ifdef CONFIG_STACK_GROWSUP
+				ret = expand_downwards(bprm->vma, pos);
+				if (ret < 0) {
+					/* We've exceed the stack rlimit. */
+					ret = -E2BIG;
+					goto out;
+				}
+#endif
+				ret = get_user_pages(current, bprm->mm, pos,
+						     1, 1, 1, &page, NULL);
+				if (ret <= 0) {
+					/* We've exceed the stack rlimit. */
+					ret = -E2BIG;
 					goto out;
 				}
-				new = 1;
-			}
 
-			if (page != kmapped_page) {
-				if (kmapped_page)
+				if (kmapped_page) {
+					flush_kernel_dcache_page(kmapped_page);
 					kunmap(kmapped_page);
+					put_page(kmapped_page);
+				}
 				kmapped_page = page;
 				kaddr = kmap(kmapped_page);
+				kpos = pos & PAGE_MASK;
+				flush_cache_page(bprm->vma, kpos,
+						 page_to_pfn(kmapped_page));
 			}
-			if (new && offset)
-				memset(kaddr, 0, offset);
-			bytes_to_copy = PAGE_SIZE - offset;
-			if (bytes_to_copy > len) {
-				bytes_to_copy = len;
-				if (new)
-					memset(kaddr+offset+len, 0,
-						PAGE_SIZE-offset-len);
-			}
-			err = copy_from_user(kaddr+offset, compat_ptr(str),
-						bytes_to_copy);
-			if (err) {
+			if (copy_from_user(kaddr+offset, compat_ptr(str),
+						bytes_to_copy)) {
 				ret = -EFAULT;
 				goto out;
 			}
-
-			pos += bytes_to_copy;
-			str += bytes_to_copy;
-			len -= bytes_to_copy;
 		}
 	}
 	ret = 0;
 out:
-	if (kmapped_page)
+	if (kmapped_page) {
+		flush_kernel_dcache_page(kmapped_page);
 		kunmap(kmapped_page);
-	return ret;
-}
-
-#ifdef CONFIG_MMU
-
-#define free_arg_pages(bprm) do { } while (0)
-
-#else
-
-static inline void free_arg_pages(struct linux_binprm *bprm)
-{
-	int i;
-
-	for (i = 0; i < MAX_ARG_PAGES; i++) {
-		if (bprm->page[i])
-			__free_page(bprm->page[i]);
-		bprm->page[i] = NULL;
+		put_page(kmapped_page);
 	}
+	return ret;
 }
 
-#endif /* CONFIG_MMU */
-
 /*
  * compat_do_execve() is mostly a copy of do_execve(), with the exception
  * that it processes 32 bit argv and envp pointers.
@@ -1363,7 +1356,6 @@ int compat_do_execve(char * filename,
 	struct linux_binprm *bprm;
 	struct file *file;
 	int retval;
-	int i;
 
 	retval = -ENOMEM;
 	bprm = kzalloc(sizeof(*bprm), GFP_KERNEL);
@@ -1377,24 +1369,19 @@ int compat_do_execve(char * filename,
 
 	sched_exec();
 
-	bprm->p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
 	bprm->file = file;
 	bprm->filename = filename;
 	bprm->interp = filename;
-	bprm->mm = mm_alloc();
-	retval = -ENOMEM;
-	if (!bprm->mm)
-		goto out_file;
 
-	retval = init_new_context(current, bprm->mm);
-	if (retval < 0)
-		goto out_mm;
+	retval = bprm_mm_init(bprm);
+	if (retval)
+		goto out_file;
 
-	bprm->argc = compat_count(argv, bprm->p / sizeof(compat_uptr_t));
+	bprm->argc = compat_count(argv, MAX_ARG_STRINGS);
 	if ((retval = bprm->argc) < 0)
 		goto out_mm;
 
-	bprm->envc = compat_count(envp, bprm->p / sizeof(compat_uptr_t));
+	bprm->envc = compat_count(envp, MAX_ARG_STRINGS);
 	if ((retval = bprm->envc) < 0)
 		goto out_mm;
 
@@ -1419,10 +1406,8 @@ int compat_do_execve(char * filename,
 	if (retval < 0)
 		goto out;
 
-	retval = search_binary_handler(bprm, regs);
+	retval = search_binary_handler(bprm,regs);
 	if (retval >= 0) {
-		free_arg_pages(bprm);
-
 		/* execve success */
 		security_bprm_free(bprm);
 		acct_update_integrals(current);
@@ -1431,19 +1416,12 @@ int compat_do_execve(char * filename,
 	}
 
 out:
-	/* Something went wrong, return the inode and free the argument pages*/
-	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
-		struct page * page = bprm->page[i];
-		if (page)
-			__free_page(page);
-	}
-
 	if (bprm->security)
 		security_bprm_free(bprm);
 
 out_mm:
 	if (bprm->mm)
-		mmdrop(bprm->mm);
+		mmput (bprm->mm);
 
 out_file:
 	if (bprm->file) {
Index: linux-2.6-2/fs/exec.c
===================================================================
--- linux-2.6-2.orig/fs/exec.c	2007-06-05 16:29:41.000000000 +0200
+++ linux-2.6-2/fs/exec.c	2007-06-05 16:29:45.000000000 +0200
@@ -54,6 +54,7 @@
 
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
+#include <asm/tlb.h>
 
 #ifdef CONFIG_KMOD
 #include <linux/kmod.h>
@@ -178,6 +179,157 @@ exit:
 	goto out;
 }
 
+#ifdef CONFIG_MMU
+
+static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
+		int write)
+{
+	struct page *page;
+	int ret;
+
+#ifdef CONFIG_STACK_GROWSUP
+	if (write) {
+		ret = expand_downwards(bprm->vma, pos);
+		if (ret < 0)
+			return NULL;
+	}
+#endif
+	ret = get_user_pages(current, bprm->mm, pos,
+			1, write, 1, &page, NULL);
+	if (ret <= 0)
+		return NULL;
+
+	return page;
+}
+
+static void put_arg_page(struct page *page)
+{
+	put_page(page);
+}
+
+static void free_arg_page(struct linux_binprm *bprm, int i)
+{
+}
+
+static void free_arg_pages(struct linux_binprm *bprm)
+{
+}
+
+#else
+
+static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
+		int write)
+{
+	struct page *page;
+
+	page = bprm->page[pos / PAGE_SIZE];
+	if (!page && write) {
+		page = alloc_page(GFP_HIGHUSER|__GFP_ZERO);
+		if (!page)
+			return NULL;
+		bprm->page[pos / PAGE_SIZE] = page;
+	}
+
+	return page;
+}
+
+static void put_arg_page(struct page *page)
+{
+}
+
+static void free_arg_page(struct linux_binprm *bprm, int i)
+{
+	if (bprm->page[i]) {
+		__free_page(bprm->page[i]);
+		bprm->page[i] = NULL;
+	}
+}
+
+static void free_arg_pages(struct linux_binprm *bprm)
+{
+	int i;
+
+	for (i = 0; i < MAX_ARG_PAGES; i++)
+		free_arg_page(bprm, i);
+}
+
+#endif /* CONFIG_MMU */
+
+/*
+ * Create a new mm_struct and populate it with a temporary stack
+ * vm_area_struct.  We don't have enough context at this point to set the stack
+ * flags, permissions, and offset, so we use temporary values.  We'll update
+ * them later in setup_arg_pages().
+ */
+int bprm_mm_init(struct linux_binprm *bprm)
+{
+	int err;
+	struct mm_struct *mm = NULL;
+	struct vm_area_struct *vma = NULL;
+
+	bprm->mm = mm = mm_alloc();
+	err = -ENOMEM;
+	if (!mm)
+		goto err;
+
+	if ((err = init_new_context(current, mm)))
+		goto err;
+
+#ifdef CONFIG_MMU
+	bprm->vma = vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+	err = -ENOMEM;
+	if (!vma)
+		goto err;
+
+	down_write(&mm->mmap_sem);
+	{
+		vma->vm_mm = mm;
+
+		/*
+		 * Place the stack at the top of user memory.  Later, we'll
+		 * move this to an appropriate place.  We don't use STACK_TOP
+		 * because that can depend on attributes which aren't
+		 * configured yet.
+		 */
+		vma->vm_end = STACK_TOP_MAX;
+		vma->vm_start = vma->vm_end - PAGE_SIZE;
+
+		vma->vm_flags = VM_STACK_FLAGS;
+		vma->vm_page_prot = protection_map[vma->vm_flags & 0x7];
+		if ((err = insert_vm_struct(mm, vma))) {
+			up_write(&mm->mmap_sem);
+			goto err;
+		}
+
+		mm->stack_vm = mm->total_vm = 1;
+	}
+	up_write(&mm->mmap_sem);
+
+	bprm->p = vma->vm_end - sizeof(void *);
+#else
+	bprm->p = PAGE_SIZE * MAX_ARG_PAGES - sizeof(void *);
+#endif
+
+	return 0;
+
+err:
+#ifdef CONFIG_MMU
+	if (vma) {
+		bprm->vma = NULL;
+		kmem_cache_free(vm_area_cachep, vma);
+	}
+#endif
+
+	if (mm) {
+		bprm->mm = NULL;
+		mmdrop(mm);
+	}
+
+	return err;
+}
+
+EXPORT_SYMBOL(bprm_mm_init);
+
 /*
  * count() counts the number of strings in array ARGV.
  */
@@ -203,15 +355,16 @@ static int count(char __user * __user * 
 }
 
 /*
- * 'copy_strings()' copies argument/environment strings from user
- * memory to free pages in kernel mem. These are in a format ready
- * to be put directly into the top of new user memory.
+ * 'copy_strings()' copies argument/environment strings from the old
+ * processes's memory to the new process's stack.  The call to get_user_pages()
+ * ensures the destination page is created and not swapped out.
  */
 static int copy_strings(int argc, char __user * __user * argv,
 			struct linux_binprm *bprm)
 {
 	struct page *kmapped_page = NULL;
 	char *kaddr = NULL;
+	unsigned long kpos = 0;
 	int ret;
 
 	while (argc-- > 0) {
@@ -220,69 +373,77 @@ static int copy_strings(int argc, char _
 		unsigned long pos;
 
 		if (get_user(str, argv+argc) ||
-				!(len = strnlen_user(str, bprm->p))) {
+				!(len = strnlen_user(str, MAX_ARG_STRLEN))) {
 			ret = -EFAULT;
 			goto out;
 		}
 
-		if (bprm->p < len)  {
+#ifdef CONFIG_MMU
+		if (MAX_ARG_STRLEN < len) {
+			ret = -E2BIG;
+			goto out;
+		}
+#else
+		if (bprm->p < len) {
 			ret = -E2BIG;
 			goto out;
 		}
+#endif
 
-		bprm->p -= len;
-		/* XXX: add architecture specific overflow check here. */
+		/* We're going to work our way backwords. */
 		pos = bprm->p;
+		str += len;
+		bprm->p -= len;
 
 		while (len > 0) {
-			int i, new, err;
 			int offset, bytes_to_copy;
-			struct page *page;
 
 			offset = pos % PAGE_SIZE;
-			i = pos/PAGE_SIZE;
-			page = bprm->page[i];
-			new = 0;
-			if (!page) {
-				page = alloc_page(GFP_HIGHUSER);
-				bprm->page[i] = page;
+			if (offset == 0)
+				offset = PAGE_SIZE;
+
+			bytes_to_copy = offset;
+			if (bytes_to_copy > len)
+				bytes_to_copy = len;
+
+			offset -= bytes_to_copy;
+			pos -= bytes_to_copy;
+			str -= bytes_to_copy;
+			len -= bytes_to_copy;
+
+			if (!kmapped_page || kpos != (pos & PAGE_MASK)) {
+				struct page *page;
+
+				page = get_arg_page(bprm, pos, 1);
 				if (!page) {
-					ret = -ENOMEM;
+					ret = -E2BIG;
 					goto out;
 				}
-				new = 1;
-			}
 
-			if (page != kmapped_page) {
-				if (kmapped_page)
+				if (kmapped_page) {
+					flush_kernel_dcache_page(kmapped_page);
 					kunmap(kmapped_page);
+					put_arg_page(kmapped_page);
+				}
 				kmapped_page = page;
 				kaddr = kmap(kmapped_page);
+				kpos = pos & PAGE_MASK;
+				flush_cache_page(bprm->vma, kpos,
+						 page_to_pfn(kmapped_page));
 			}
-			if (new && offset)
-				memset(kaddr, 0, offset);
-			bytes_to_copy = PAGE_SIZE - offset;
-			if (bytes_to_copy > len) {
-				bytes_to_copy = len;
-				if (new)
-					memset(kaddr+offset+len, 0,
-						PAGE_SIZE-offset-len);
-			}
-			err = copy_from_user(kaddr+offset, str, bytes_to_copy);
-			if (err) {
+			if (copy_from_user(kaddr+offset, str, bytes_to_copy)) {
 				ret = -EFAULT;
 				goto out;
 			}
-
-			pos += bytes_to_copy;
-			str += bytes_to_copy;
-			len -= bytes_to_copy;
 		}
 	}
 	ret = 0;
 out:
-	if (kmapped_page)
+	if (kmapped_page) {
+		flush_kernel_dcache_page(kmapped_page);
 		kunmap(kmapped_page);
+		put_arg_page(kmapped_page);
+	}
 	return ret;
 }
 
@@ -302,154 +463,157 @@ int copy_strings_kernel(int argc,char **
 EXPORT_SYMBOL(copy_strings_kernel);
 
 #ifdef CONFIG_MMU
-/*
- * This routine is used to map in a page into an address space: needed by
- * execve() for the initial stack and environment pages.
- *
- * vma->vm_mm->mmap_sem is held for writing.
- */
-void install_arg_page(struct vm_area_struct *vma,
-			struct page *page, unsigned long address)
+
+static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
 {
 	struct mm_struct *mm = vma->vm_mm;
-	pte_t * pte;
-	spinlock_t *ptl;
+	unsigned long old_start = vma->vm_start;
+	unsigned long old_end = vma->vm_end;
+	unsigned long length = old_end - old_start;
+	unsigned long new_start = old_start + shift;
+	unsigned long new_end = old_end + shift;
+	struct mmu_gather *tlb;
+
+	BUG_ON(new_start > new_end);
+
+	if (new_start < old_start) {
+		if (vma != find_vma(mm, new_start))
+			return -EFAULT;
+
+		vma_adjust(vma, new_start, old_end,
+			   vma->vm_pgoff - (-shift >> PAGE_SHIFT), NULL);
+
+		if (length != move_page_tables(vma, old_start,
+					       vma, new_start, length))
+			return -ENOMEM;
+
+		lru_add_drain();
+		tlb = tlb_gather_mmu(mm, 0);
+		if (new_end > old_start)
+			free_pgd_range(&tlb, new_end, old_end, new_end,
+				vma->vm_next ? vma->vm_next->vm_start : 0);
+		else
+			free_pgd_range(&tlb, old_start, old_end, new_end,
+				vma->vm_next ? vma->vm_next->vm_start : 0);
+		tlb_finish_mmu(tlb, new_end, old_end);
 
-	if (unlikely(anon_vma_prepare(vma)))
-		goto out;
+		vma_adjust(vma, new_start, new_end, vma->vm_pgoff, NULL);
+	} else {
+		struct vm_area_struct *tmp, *prev;
 
-	flush_dcache_page(page);
-	pte = get_locked_pte(mm, address, &ptl);
-	if (!pte)
-		goto out;
-	if (!pte_none(*pte)) {
-		pte_unmap_unlock(pte, ptl);
-		goto out;
+		tmp = find_vma_prev(mm, new_end, &prev);
+		if ((tmp && tmp->vm_start < new_end) || prev != vma)
+			return -EFAULT;
+
+		find_vma_prev(mm, vma->vm_start, &prev);
+
+		vma_adjust(vma, old_start, new_end, vma->vm_pgoff, NULL);
+
+		if (length != move_page_tables_up(vma, old_start,
+					       vma, new_start, length))
+			return -ENOMEM;
+
+		lru_add_drain();
+		tlb = tlb_gather_mmu(mm, 0);
+		free_pgd_range(&tlb, old_start, new_start,
+			       prev ? prev->vm_end: 0, new_start);
+		tlb_finish_mmu(tlb, old_start, new_start);
+
+		vma_adjust(vma, new_start, new_end,
+			   vma->vm_pgoff + (shift >> PAGE_SHIFT), NULL);
 	}
-	inc_mm_counter(mm, anon_rss);
-	lru_cache_add_active(page);
-	set_pte_at(mm, address, pte, pte_mkdirty(pte_mkwrite(mk_pte(
-					page, vma->vm_page_prot))));
-	page_add_new_anon_rmap(page, vma, address);
-	pte_unmap_unlock(pte, ptl);
 
-	/* no need for flush_tlb */
-	return;
-out:
-	__free_page(page);
-	force_sig(SIGKILL, current);
+	return 0;
 }
 
 #define EXTRA_STACK_VM_PAGES	20	/* random */
 
+/* Finalizes the stack vm_area_struct.  The flags and permissions are updated,
+ * the stack is optionally relocated, and some extra space is added.
+ */
 int setup_arg_pages(struct linux_binprm *bprm,
 		    unsigned long stack_top,
 		    int executable_stack)
 {
-	unsigned long stack_base;
-	struct vm_area_struct *mpnt;
+	unsigned long ret;
+	unsigned long stack_base, stack_shift;
 	struct mm_struct *mm = current->mm;
-	int i, ret;
-	long arg_size;
+	struct vm_area_struct *vma = bprm->vma;
 
 #ifdef CONFIG_STACK_GROWSUP
-	/* Move the argument and environment strings to the bottom of the
-	 * stack space.
-	 */
-	int offset, j;
-	char *to, *from;
-
-	/* Start by shifting all the pages down */
-	i = 0;
-	for (j = 0; j < MAX_ARG_PAGES; j++) {
-		struct page *page = bprm->page[j];
-		if (!page)
-			continue;
-		bprm->page[i++] = page;
-	}
-
-	/* Now move them within their pages */
-	offset = bprm->p % PAGE_SIZE;
-	to = kmap(bprm->page[0]);
-	for (j = 1; j < i; j++) {
-		memmove(to, to + offset, PAGE_SIZE - offset);
-		from = kmap(bprm->page[j]);
-		memcpy(to + PAGE_SIZE - offset, from, offset);
-		kunmap(bprm->page[j - 1]);
-		to = from;
-	}
-	memmove(to, to + offset, PAGE_SIZE - offset);
-	kunmap(bprm->page[j - 1]);
-
 	/* Limit stack size to 1GB */
 	stack_base = current->signal->rlim[RLIMIT_STACK].rlim_max;
 	if (stack_base > (1 << 30))
 		stack_base = 1 << 30;
-	stack_base = PAGE_ALIGN(stack_top - stack_base);
 
-	/* Adjust bprm->p to point to the end of the strings. */
-	bprm->p = stack_base + PAGE_SIZE * i - offset;
+	/* Make sure we didn't let the argument array grow too large. */
+	if (vma->vm_end - vma->vm_start > stack_base)
+		return -ENOMEM;
 
-	mm->arg_start = stack_base;
-	arg_size = i << PAGE_SHIFT;
+	stack_base = PAGE_ALIGN(stack_top - stack_base);
 
-	/* zero pages that were copied above */
-	while (i < MAX_ARG_PAGES)
-		bprm->page[i++] = NULL;
+	stack_shift = stack_base - vma->vm_start;
+	mm->arg_start = bprm->p + stack_shift;
+	bprm->p = vma->vm_end + stack_shift;
 #else
-	stack_base = arch_align_stack(stack_top - MAX_ARG_PAGES*PAGE_SIZE);
-	stack_base = PAGE_ALIGN(stack_base);
-	bprm->p += stack_base;
+	BUG_ON(stack_top & ~PAGE_MASK);
+
+	stack_top = arch_align_stack(stack_top);
+	stack_top = PAGE_ALIGN(stack_top);
+	stack_shift = stack_top - vma->vm_end;
+
+	bprm->p += stack_shift;
 	mm->arg_start = bprm->p;
-	arg_size = stack_top - (PAGE_MASK & (unsigned long) mm->arg_start);
 #endif
 
-	arg_size += EXTRA_STACK_VM_PAGES * PAGE_SIZE;
-
 	if (bprm->loader)
-		bprm->loader += stack_base;
-	bprm->exec += stack_base;
-
-	mpnt = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-	if (!mpnt)
-		return -ENOMEM;
+		bprm->loader += stack_shift;
+	bprm->exec += stack_shift;
 
 	down_write(&mm->mmap_sem);
 	{
-		mpnt->vm_mm = mm;
-#ifdef CONFIG_STACK_GROWSUP
-		mpnt->vm_start = stack_base;
-		mpnt->vm_end = stack_base + arg_size;
-#else
-		mpnt->vm_end = stack_top;
-		mpnt->vm_start = mpnt->vm_end - arg_size;
-#endif
+		struct vm_area_struct *prev = NULL;
+		unsigned long vm_flags = vma->vm_flags;
+
 		/* Adjust stack execute permissions; explicitly enable
 		 * for EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X
 		 * and leave alone (arch default) otherwise. */
 		if (unlikely(executable_stack == EXSTACK_ENABLE_X))
-			mpnt->vm_flags = VM_STACK_FLAGS |  VM_EXEC;
+			vm_flags |= VM_EXEC;
 		else if (executable_stack == EXSTACK_DISABLE_X)
-			mpnt->vm_flags = VM_STACK_FLAGS & ~VM_EXEC;
-		else
-			mpnt->vm_flags = VM_STACK_FLAGS;
-		mpnt->vm_flags |= mm->def_flags;
-		mpnt->vm_page_prot = protection_map[mpnt->vm_flags & 0x7];
-		if ((ret = insert_vm_struct(mm, mpnt))) {
+			vm_flags &= ~VM_EXEC;
+		vm_flags |= mm->def_flags;
+
+		ret = mprotect_fixup(vma, &prev, vma->vm_start, vma->vm_end,
+				vm_flags);
+		if (ret) {
 			up_write(&mm->mmap_sem);
-			kmem_cache_free(vm_area_cachep, mpnt);
 			return ret;
 		}
-		mm->stack_vm = mm->total_vm = vma_pages(mpnt);
-	}
+		BUG_ON(prev != vma);
 
-	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
-		struct page *page = bprm->page[i];
-		if (page) {
-			bprm->page[i] = NULL;
-			install_arg_page(mpnt, page, stack_base);
+		/* Move stack pages down in memory. */
+		if (stack_shift) {
+			ret = shift_arg_pages(vma, stack_shift);
+			if (ret) {
+				up_write(&mm->mmap_sem);
+				return ret;
+			}
+		}
+
+#ifdef CONFIG_STACK_GROWSUP
+		if (expand_stack(vma, vma->vm_end +
+					EXTRA_STACK_VM_PAGES * PAGE_SIZE)) {
+			up_write(&mm->mmap_sem);
+			return -EFAULT;
+		}
+#else
+		if (expand_stack(vma, vma->vm_start -
+					EXTRA_STACK_VM_PAGES * PAGE_SIZE)) {
+			up_write(&mm->mmap_sem);
+			return -EFAULT;
 		}
-		stack_base += PAGE_SIZE;
+#endif
 	}
 	up_write(&mm->mmap_sem);
 	
@@ -458,21 +622,6 @@ int setup_arg_pages(struct linux_binprm 
 
 EXPORT_SYMBOL(setup_arg_pages);
 
-#define free_arg_pages(bprm) do { } while (0)
-
-#else
-
-static inline void free_arg_pages(struct linux_binprm *bprm)
-{
-	int i;
-
-	for (i = 0; i < MAX_ARG_PAGES; i++) {
-		if (bprm->page[i])
-			__free_page(bprm->page[i]);
-		bprm->page[i] = NULL;
-	}
-}
-
 #endif /* CONFIG_MMU */
 
 struct file *open_exec(const char *name)
@@ -1000,44 +1149,44 @@ EXPORT_SYMBOL(compute_creds);
  * points to; chop off the first by relocating brpm->p to right after
  * the first '\0' encountered.
  */
-void remove_arg_zero(struct linux_binprm *bprm)
+int remove_arg_zero(struct linux_binprm *bprm)
 {
-	if (bprm->argc) {
-		char ch;
-
-		do {
-			unsigned long offset;
-			unsigned long index;
-			char *kaddr;
-			struct page *page;
-
-			offset = bprm->p & ~PAGE_MASK;
-			index = bprm->p >> PAGE_SHIFT;
-
-			page = bprm->page[index];
-			kaddr = kmap_atomic(page, KM_USER0);
-
-			/* run through page until we reach end or find NUL */
-			do {
-				ch = *(kaddr + offset);
-
-				/* discard that character... */
-				bprm->p++;
-				offset++;
-			} while (offset < PAGE_SIZE && ch != '\0');
-
-			kunmap_atomic(kaddr, KM_USER0);
-
-			/* free the old page */
-			if (offset == PAGE_SIZE) {
-				__free_page(page);
-				bprm->page[index] = NULL;
-			}
-		} while (ch != '\0');
+        int ret = 0;
+        unsigned long offset;
+        char *kaddr;
+        struct page *page;
+
+        if (!bprm->argc)
+                return 0;
+
+        do {
+                offset = bprm->p & ~PAGE_MASK;
+                page = get_arg_page(bprm, bprm->p, 0);
+                if (!page) {
+                        ret = -EFAULT;
+                        goto out;
+                }
+                kaddr = kmap_atomic(page, KM_USER0);
+
+                for (; offset < PAGE_SIZE && kaddr[offset];
+                                offset++, bprm->p++)
+                        ;
+
+                kunmap_atomic(kaddr, KM_USER0);
+                put_arg_page(page);
+
+                if (offset == PAGE_SIZE)
+                        free_arg_page(bprm, (bprm->p >> PAGE_SHIFT) - 1);
+        } while (offset == PAGE_SIZE);
+
+        bprm->p++;
+        bprm->argc--;
+        ret = 0;
 
-		bprm->argc--;
-	}
+out:
+        return ret;
 }
+
 EXPORT_SYMBOL(remove_arg_zero);
 
 /*
@@ -1062,7 +1211,7 @@ int search_binary_handler(struct linux_b
 		fput(bprm->file);
 		bprm->file = NULL;
 
-	        loader = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
+	        loader = bprm->vma->vm_end - sizeof(void *);
 
 		file = open_exec("/sbin/loader");
 		retval = PTR_ERR(file);
@@ -1156,7 +1305,6 @@ int do_execve(char * filename,
 	struct file *file;
 	unsigned long tmp;
 	int retval;
-	int i;
 
 	retval = -ENOMEM;
 	bprm = kzalloc(sizeof(*bprm), GFP_KERNEL);
@@ -1170,25 +1318,19 @@ int do_execve(char * filename,
 
 	sched_exec();
 
-	bprm->p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
-
 	bprm->file = file;
 	bprm->filename = filename;
 	bprm->interp = filename;
-	bprm->mm = mm_alloc();
-	retval = -ENOMEM;
-	if (!bprm->mm)
-		goto out_file;
 
-	retval = init_new_context(current, bprm->mm);
-	if (retval < 0)
-		goto out_mm;
+	retval = bprm_mm_init(bprm);
+	if (retval)
+		goto out_file;
 
-	bprm->argc = count(argv, bprm->p / sizeof(void *));
+	bprm->argc = count(argv, MAX_ARG_STRINGS);
 	if ((retval = bprm->argc) < 0)
 		goto out_mm;
 
-	bprm->envc = count(envp, bprm->p / sizeof(void *));
+	bprm->envc = count(envp, MAX_ARG_STRINGS);
 	if ((retval = bprm->envc) < 0)
 		goto out_mm;
 
@@ -1217,9 +1359,8 @@ int do_execve(char * filename,
 
 	retval = search_binary_handler(bprm,regs);
 	if (retval >= 0) {
-		free_arg_pages(bprm);
-
 		/* execve success */
+		free_arg_pages(bprm);
 		security_bprm_free(bprm);
 		acct_update_integrals(current);
 		kfree(bprm);
@@ -1227,26 +1368,19 @@ int do_execve(char * filename,
 	}
 
 out:
-	/* Something went wrong, return the inode and free the argument pages*/
-	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
-		struct page * page = bprm->page[i];
-		if (page)
-			__free_page(page);
-	}
-
+	free_arg_pages(bprm);
 	if (bprm->security)
 		security_bprm_free(bprm);
 
 out_mm:
 	if (bprm->mm)
-		mmdrop(bprm->mm);
+		mmput (bprm->mm);
 
 out_file:
 	if (bprm->file) {
 		allow_write_access(bprm->file);
 		fput(bprm->file);
 	}
-
 out_kfree:
 	kfree(bprm);
 
Index: linux-2.6-2/include/asm-um/processor-i386.h
===================================================================
--- linux-2.6-2.orig/include/asm-um/processor-i386.h	2007-06-05 16:23:16.000000000 +0200
+++ linux-2.6-2/include/asm-um/processor-i386.h	2007-06-05 16:29:45.000000000 +0200
@@ -67,9 +67,6 @@ static inline void rep_nop(void)
 #define current_text_addr() \
 	({ void *pc; __asm__("movl $1f,%0\n1:":"=g" (pc)); pc; })
 
-#define ARCH_IS_STACKGROW(address) \
-       (address + 32 >= UPT_SP(&current->thread.regs.regs))
-
 #define KSTK_EIP(tsk) KSTK_REG(tsk, EIP)
 #define KSTK_ESP(tsk) KSTK_REG(tsk, UESP)
 #define KSTK_EBP(tsk) KSTK_REG(tsk, EBP)
Index: linux-2.6-2/include/asm-um/processor-x86_64.h
===================================================================
--- linux-2.6-2.orig/include/asm-um/processor-x86_64.h	2007-06-05 16:23:16.000000000 +0200
+++ linux-2.6-2/include/asm-um/processor-x86_64.h	2007-06-05 16:29:45.000000000 +0200
@@ -44,9 +44,6 @@ static inline void arch_copy_thread(stru
 #define current_text_addr() \
 	({ void *pc; __asm__("movq $1f,%0\n1:":"=g" (pc)); pc; })
 
-#define ARCH_IS_STACKGROW(address) \
-        (address + 128 >= UPT_SP(&current->thread.regs.regs))
-
 #define KSTK_EIP(tsk) KSTK_REG(tsk, RIP)
 #define KSTK_ESP(tsk) KSTK_REG(tsk, RSP)
 
Index: linux-2.6-2/include/linux/binfmts.h
===================================================================
--- linux-2.6-2.orig/include/linux/binfmts.h	2007-06-05 16:29:41.000000000 +0200
+++ linux-2.6-2/include/linux/binfmts.h	2007-06-05 16:29:45.000000000 +0200
@@ -5,12 +5,9 @@
 
 struct pt_regs;
 
-/*
- * MAX_ARG_PAGES defines the number of pages allocated for arguments
- * and envelope for the new program. 32 should suffice, this gives
- * a maximum env+arg of 128kB w/4KB pages!
- */
-#define MAX_ARG_PAGES 32
+/* FIXME: Find real limits, or none. */
+#define MAX_ARG_STRLEN (PAGE_SIZE * 32)
+#define MAX_ARG_STRINGS 0x7FFFFFFF
 
 /* sizeof(linux_binprm->buf) */
 #define BINPRM_BUF_SIZE 128
@@ -24,7 +21,12 @@ struct pt_regs;
  */
 struct linux_binprm{
 	char buf[BINPRM_BUF_SIZE];
+#ifdef CONFIG_MMU
+	struct vm_area_struct *vma;
+#else
+# define MAX_ARG_PAGES	32
 	struct page *page[MAX_ARG_PAGES];
+#endif
 	struct mm_struct *mm;
 	unsigned long p; /* current top of mem */
 	int sh_bang;
@@ -69,7 +71,7 @@ extern int register_binfmt(struct linux_
 extern int unregister_binfmt(struct linux_binfmt *);
 
 extern int prepare_binprm(struct linux_binprm *);
-extern void remove_arg_zero(struct linux_binprm *);
+extern int __must_check remove_arg_zero(struct linux_binprm *);
 extern int search_binary_handler(struct linux_binprm *,struct pt_regs *);
 extern int flush_old_exec(struct linux_binprm * bprm);
 
@@ -86,6 +88,7 @@ extern int suid_dumpable;
 extern int setup_arg_pages(struct linux_binprm * bprm,
 			   unsigned long stack_top,
 			   int executable_stack);
+extern int bprm_mm_init(struct linux_binprm *bprm);
 extern int copy_strings_kernel(int argc,char ** argv,struct linux_binprm *bprm);
 extern void compute_creds(struct linux_binprm *binprm);
 extern int do_coredump(long signr, int exit_code, struct pt_regs * regs);
Index: linux-2.6-2/include/linux/mm.h
===================================================================
--- linux-2.6-2.orig/include/linux/mm.h	2007-06-05 16:29:43.000000000 +0200
+++ linux-2.6-2/include/linux/mm.h	2007-06-05 16:29:45.000000000 +0200
@@ -786,7 +786,6 @@ static inline int handle_mm_fault(struct
 
 extern int make_pages_present(unsigned long addr, unsigned long end);
 extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write);
-void install_arg_page(struct vm_area_struct *, struct page *, unsigned long);
 
 int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, unsigned long start,
 		int len, int write, int force, struct page **pages, struct vm_area_struct **vmas);
@@ -812,6 +811,9 @@ extern unsigned long move_page_tables_up
 extern unsigned long do_mremap(unsigned long addr,
 			       unsigned long old_len, unsigned long new_len,
 			       unsigned long flags, unsigned long new_addr);
+extern int mprotect_fixup(struct vm_area_struct *vma,
+			  struct vm_area_struct **pprev, unsigned long start,
+			  unsigned long end, unsigned long newflags);
 
 /*
  * Prototype to add a shrinker callback for ageable caches.
@@ -1130,6 +1132,9 @@ extern int expand_stack(struct vm_area_s
 #ifdef CONFIG_IA64
 extern int expand_upwards(struct vm_area_struct *vma, unsigned long address);
 #endif
+#ifdef CONFIG_STACK_GROWSUP
+extern int expand_downwards(struct vm_area_struct *vma, unsigned long address);
+#endif
 
 /* Look up the first VMA which satisfies  addr < vm_end,  NULL if none. */
 extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long addr);
Index: linux-2.6-2/mm/mmap.c
===================================================================
--- linux-2.6-2.orig/mm/mmap.c	2007-06-05 16:23:16.000000000 +0200
+++ linux-2.6-2/mm/mmap.c	2007-06-05 16:29:45.000000000 +0200
@@ -1557,33 +1557,13 @@ int expand_upwards(struct vm_area_struct
 }
 #endif /* CONFIG_STACK_GROWSUP || CONFIG_IA64 */
 
-#ifdef CONFIG_STACK_GROWSUP
-int expand_stack(struct vm_area_struct *vma, unsigned long address)
-{
-	return expand_upwards(vma, address);
-}
-
-struct vm_area_struct *
-find_extend_vma(struct mm_struct *mm, unsigned long addr)
-{
-	struct vm_area_struct *vma, *prev;
-
-	addr &= PAGE_MASK;
-	vma = find_vma_prev(mm, addr, &prev);
-	if (vma && (vma->vm_start <= addr))
-		return vma;
-	if (!prev || expand_stack(prev, addr))
-		return NULL;
-	if (prev->vm_flags & VM_LOCKED) {
-		make_pages_present(addr, prev->vm_end);
-	}
-	return prev;
-}
-#else
 /*
  * vma is the first one with address < vma->vm_start.  Have to extend vma.
  */
-int expand_stack(struct vm_area_struct *vma, unsigned long address)
+#ifndef CONFIG_STACK_GROWSUP
+static inline
+#endif
+int expand_downwards(struct vm_area_struct *vma, unsigned long address)
 {
 	int error;
 
@@ -1620,6 +1600,34 @@ int expand_stack(struct vm_area_struct *
 	return error;
 }
 
+#ifdef CONFIG_STACK_GROWSUP
+int expand_stack(struct vm_area_struct *vma, unsigned long address)
+{
+	return expand_upwards(vma, address);
+}
+
+struct vm_area_struct *
+find_extend_vma(struct mm_struct *mm, unsigned long addr)
+{
+	struct vm_area_struct *vma, *prev;
+
+	addr &= PAGE_MASK;
+	vma = find_vma_prev(mm, addr, &prev);
+	if (vma && (vma->vm_start <= addr))
+		return vma;
+	if (!prev || expand_stack(prev, addr))
+		return NULL;
+	if (prev->vm_flags & VM_LOCKED) {
+		make_pages_present(addr, prev->vm_end);
+	}
+	return prev;
+}
+#else
+int expand_stack(struct vm_area_struct *vma, unsigned long address)
+{
+	return expand_downwards(vma, address);
+}
+
 struct vm_area_struct *
 find_extend_vma(struct mm_struct * mm, unsigned long addr)
 {
Index: linux-2.6-2/mm/mprotect.c
===================================================================
--- linux-2.6-2.orig/mm/mprotect.c	2007-06-05 16:23:16.000000000 +0200
+++ linux-2.6-2/mm/mprotect.c	2007-06-05 16:29:45.000000000 +0200
@@ -128,7 +128,7 @@ static void change_protection(struct vm_
 	flush_tlb_range(vma, start, end);
 }
 
-static int
+int
 mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
 	unsigned long start, unsigned long end, unsigned long newflags)
 {
Index: linux-2.6-2/arch/ia64/ia32/binfmt_elf32.c
===================================================================
--- linux-2.6-2.orig/arch/ia64/ia32/binfmt_elf32.c	2007-06-05 16:23:16.000000000 +0200
+++ linux-2.6-2/arch/ia64/ia32/binfmt_elf32.c	2007-06-05 16:29:45.000000000 +0200
@@ -195,62 +195,23 @@ ia64_elf32_init (struct pt_regs *regs)
 	ia32_load_state(current);
 }
 
+#undef setup_arg_pages
+
 int
 ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack)
 {
-	unsigned long stack_base;
-	struct vm_area_struct *mpnt;
-	struct mm_struct *mm = current->mm;
-	int i, ret;
-
-	stack_base = IA32_STACK_TOP - MAX_ARG_PAGES*PAGE_SIZE;
-	mm->arg_start = bprm->p + stack_base;
-
-	bprm->p += stack_base;
-	if (bprm->loader)
-		bprm->loader += stack_base;
-	bprm->exec += stack_base;
-
-	mpnt = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-	if (!mpnt)
-		return -ENOMEM;
-
-	down_write(&current->mm->mmap_sem);
-	{
-		mpnt->vm_mm = current->mm;
-		mpnt->vm_start = PAGE_MASK & (unsigned long) bprm->p;
-		mpnt->vm_end = IA32_STACK_TOP;
-		if (executable_stack == EXSTACK_ENABLE_X)
-			mpnt->vm_flags = VM_STACK_FLAGS |  VM_EXEC;
-		else if (executable_stack == EXSTACK_DISABLE_X)
-			mpnt->vm_flags = VM_STACK_FLAGS & ~VM_EXEC;
-		else
-			mpnt->vm_flags = VM_STACK_FLAGS;
-		mpnt->vm_page_prot = (mpnt->vm_flags & VM_EXEC)?
-					PAGE_COPY_EXEC: PAGE_COPY;
-		if ((ret = insert_vm_struct(current->mm, mpnt))) {
-			up_write(&current->mm->mmap_sem);
-			kmem_cache_free(vm_area_cachep, mpnt);
-			return ret;
-		}
-		current->mm->stack_vm = current->mm->total_vm = vma_pages(mpnt);
-	}
+	int ret;
 
-	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
-		struct page *page = bprm->page[i];
-		if (page) {
-			bprm->page[i] = NULL;
-			install_arg_page(mpnt, page, stack_base);
-		}
-		stack_base += PAGE_SIZE;
+	ret = setup_arg_pages(bprm, IA32_STACK_TOP, executable_stack);
+	if (!ret) {
+		/*
+		 * Can't do it in ia64_elf32_init(). Needs to be done before
+		 * calls to elf32_map()
+		 */
+		current->thread.ppl = ia32_init_pp_list();
 	}
-	up_write(&current->mm->mmap_sem);
 
-	/* Can't do it in ia64_elf32_init(). Needs to be done before calls to
-	   elf32_map() */
-	current->thread.ppl = ia32_init_pp_list();
-
-	return 0;
+	return ret;
 }
 
 static void
Index: linux-2.6-2/arch/x86_64/ia32/ia32_aout.c
===================================================================
--- linux-2.6-2.orig/arch/x86_64/ia32/ia32_aout.c	2007-06-05 16:23:16.000000000 +0200
+++ linux-2.6-2/arch/x86_64/ia32/ia32_aout.c	2007-06-05 16:29:45.000000000 +0200
@@ -404,7 +404,7 @@ beyond_if:
 
 	set_brk(current->mm->start_brk, current->mm->brk);
 
-	retval = ia32_setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT);
+	retval = setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT);
 	if (retval < 0) { 
 		/* Someone check-me: is this error path enough? */ 
 		send_sig(SIGKILL, current, 0); 
Index: linux-2.6-2/kernel/auditsc.c
===================================================================
--- linux-2.6-2.orig/kernel/auditsc.c	2007-06-05 16:29:41.000000000 +0200
+++ linux-2.6-2/kernel/auditsc.c	2007-06-05 16:31:28.000000000 +0200
@@ -848,7 +848,7 @@ static void audit_log_execve_info(struct
 		long ret;
 		char *tmp;
 
-		len = strnlen_user(p, MAX_ARG_PAGES*PAGE_SIZE);
+		len = strnlen_user(p, MAX_ARG_STRLEN);
 		/*
 		 * We just created this mm, if we can't find the strings
 		 * we just copied in something is _very_ wrong.

-- 

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Xref: news.gmane.org gmane.linux.ports.parisc:24644


This patch-set aims at removing the current limit on argv+env space aka.
MAX_ARG_PAGES.

The new mm is created before the binfmt code runs, the stack is placed at the
highest address supported by that architecture.

The argv+env data is then copied from the old mm into the new mm (which is
inactive at that time - this introduces some cache coherency issues).

Then we run the binfmt code, which will compute the final stack address. The
existing stack will be moved downwards (or upwards on PA-RISC) to the desired
place.

This 'trick' heavily relies on the MMU, so for no-MMU archs we stay with the
old approach.

Tested-on: i386, ia64, frv, parisc, ppc64, um, x86_64

Patches against: .22-rc4

-- 
Changes since last time:

 - fixed ia64
     ( va-space constraints )

 - fixed ia64 CONFIG_IA32_SUPPORT
     ( brown paper bags and more va-space constraints)

 - fixed powerpc
     ( address limit on stack extention )

 - removed audit_kill() in favour of audit_panic()

 - nicely spit out the patches

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Xref: news.gmane.org gmane.linux.ports.parisc:24645

On Thu, 31 May 2007, Kyle McMartin wrote:

> On Fri, Jun 01, 2007 at 11:38:40AM +1000, Stephen Rothwell wrote:
>> This also breaks Alpha (which uses 02000000 for O_DIRECT) and parisc
>> (which uses 02000000 for O_RSYNC).  So you ether need to choose a
>> different value or define O_CLOEXEC for those two architectures.
>>
>
> That's easy enough to fix...
>
> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
>
> diff --git a/include/asm-parisc/fcntl.h b/include/asm-parisc/fcntl.h
> index 317851f..4ca0fb0 100644
> --- a/include/asm-parisc/fcntl.h
> +++ b/include/asm-parisc/fcntl.h
> @@ -14,6 +14,7 @@
> #define O_DSYNC		01000000 /* HPUX only */
> #define O_RSYNC		02000000 /* HPUX only */
> #define O_NOATIME	04000000
> +#define O_CLOEXEC	08000000 /* set close_on_exec */
>
> #define O_DIRECTORY	00010000 /* must be a directory */
> #define O_NOFOLLOW	00000200 /* don't follow links */

These are octal values, so you really want to use 010000000 instead of
08000000. :-)

While looking at that file further, I noticed these two flags share the same
value. I don't know DMAPI/XDSM, but could they potentially conflict?

#define O_NOATIME       04000000
#define O_INVISIBLE     04000000 /* invisible I/O, for DMAPI/XDSM */

Regards,
  -Byron

--
Byron Stanoszek                         Ph: (330) 644-3059
Systems Programmer                      Fax: (330) 644-8110
Commercial Timesharing Inc.             Email: byron@comtime.com
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I have run the Ubuntu glibc testsute (feisty) in three different
configurations.  This setup is Ubuntu Feisty, except that I'm using
gcc-4.2instead of
gcc-4.1.  The first kernel is from Kyle's merge tree from ~1 week ago.  The
second one adds jda's dirent patch and ggg's SMP patch but compiled for UP.
The third is the second kernel compiled for SMP.

The only conclusion that I can draw is that some of the threading bits
aren't actually SMP-safe.  That said, Grant's SMP patch holds up under make
-j2 on glibc, and the system would kill the SCSI drive before I ever got
that far before.  Note also that tst-pie1 still segfaults the whole way
through as well.

Kernel #1 (baseline):
(Note that Carlos doesn't see several of these, I'm still converging my
error set with his, so this is provided for reference only)

tststatic2.out] Error 1
tststatic.out] Error 1
check-textrel.out] Error 1
tst-addr1.out] Error 1
tst-audit2.out] Error 139
tst-pie1.out] Error 139
tst-tls9-static.out] Error 1
test-double.out] Error 1
test-idouble.out] Error 1
tst-cancelx20.out] Error 1
tst-cancelx21.out] Error 1
tst-cancelx4.out] Error 1
tst-cancelx5.out] Error 1
tst-cleanupx4.out] Error 1
tst-cond16.out] Error 1
tst-fork1.out] Error 143 (Spun out, killed by hand)
tst-initializers1-c99.o] Error 1
tst-initializers1-gnu99.o] Error 1
tst-initializers1.o] Error 1
tst-robustpi8.out] Error 1
tst-cputimer1.out] Error 1
tst-cputimer2.out] Error 1
tst-cputimer3.out] Error 1
tst-mqueue3.out] Error 1
tst-timer4.out] Error 1
tst-timer5.out] Error 1

Kernel #2 versus Kernel #1:
Added:
tst-cond17.out] Error 1

Removed:
tst-robustpi8.out] Error 1

Kernel #3 versus Kernel #2:
Added:
nptl/tst-barrier3.out] Error 1
nptl/tst-basic4.out] Error 1
nptl/tst-cond18.out] Error 1
nptl/tst-cond20.out] Error 1
nptl/tst-cond21.out] Error 1
nptl/tst-exec1.out] Error 1

Removed:
dlfcn/tststatic2.out] Error 1
dlfcn/tststatic.out] Error 1
elf/tst-tls9-static.out] Error 1
nptl/tst-fork1.out] Error 143



-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/

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I have run the Ubuntu glibc testsute (feisty) in three different configurations.&nbsp; This setup is Ubuntu Feisty, except that I&#39;m using gcc-4.2 instead of gcc-4.1.&nbsp; The first kernel is from Kyle&#39;s merge tree from ~1 week ago.&nbsp; The second one adds jda&#39;s dirent patch and ggg&#39;s SMP patch but compiled for UP.&nbsp; The third is the second kernel compiled for SMP.
<br><br>The only conclusion that I can draw is that some of the threading bits aren&#39;t actually SMP-safe.&nbsp; That said, Grant&#39;s SMP patch holds up under make -j2 on glibc, and the system would kill the SCSI drive before I ever got that far before.&nbsp; Note also that tst-pie1 still segfaults the whole way through as well.
<br><br>Kernel #1 (baseline):<br>(Note that Carlos doesn&#39;t see several of these, I&#39;m still converging my error set with his, so this is provided for reference only)<br><br><div style="margin-left: 40px;">tststatic2.out
] Error 1<br>tststatic.out] Error 1<br>check-textrel.out] Error 1<br>tst-addr1.out] Error 1<br>tst-audit2.out] Error 139<br>tst-pie1.out] Error 139<br>tst-tls9-static.out] Error 1<br>test-double.out] Error 1<br>test-idouble.out
] Error 1<br>tst-cancelx20.out] Error 1<br>tst-cancelx21.out] Error 1<br>tst-cancelx4.out] Error 1<br>tst-cancelx5.out] Error 1<br>tst-cleanupx4.out] Error 1<br>tst-cond16.out] Error 1<br>tst-fork1.out] Error 143 (Spun out, killed by hand)
<br>tst-initializers1-c99.o] Error 1<br>tst-initializers1-gnu99.o] Error 1<br>tst-initializers1.o] Error 1<br>tst-robustpi8.out] Error 1<br>tst-cputimer1.out] Error 1<br>tst-cputimer2.out] Error 1<br>tst-cputimer3.out] Error 1
<br>tst-mqueue3.out] Error 1<br>tst-timer4.out] Error 1<br>tst-timer5.out] Error 1<br></div><br>Kernel #2 versus Kernel #1:<br><div style="margin-left: 40px;">Added:<br>tst-cond17.out] Error 1<br><br>Removed:<br>tst-robustpi8.out
] Error 1<br></div><br>Kernel #3 versus Kernel #2:<br><div style="margin-left: 40px;">Added:<br>nptl/tst-barrier3.out] Error 1<br>nptl/tst-basic4.out] Error 1<br>nptl/tst-cond18.out] Error 1<br>nptl/tst-cond20.out] Error 1
<br>nptl/tst-cond21.out] Error 1<br>nptl/tst-exec1.out] Error 1<br><br>Removed:<br>dlfcn/tststatic2.out] Error 1<br>dlfcn/tststatic.out] Error 1<br>elf/tst-tls9-static.out] Error 1<br>nptl/tst-fork1.out] Error 143<br></div>
<br><br clear="all"><br>-- <br>Jeff Bailey - <a href="http://www.raspberryginger.com/jbailey/">http://www.raspberryginger.com/jbailey/</a>

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On Fri, Jun 08, 2007 at 03:26:51PM +0200, Fabio Bracci wrote:
> Hello,
>     While browsing on the site www.parisc-linux.org, I found a faq
> pointing at a debian netinstall iso on your ftp site:
> http://ftp.parisc-linux.org/cd-images/testing/auto-isos/
> 
> This link doesn't exist at all, nor I could figure out in which
> subdirectory those images are to be found. It looks like the whole
> directory is missing.
> Are such images still offered on your ftp site? or is it simply a matter
> of a wrong link by www.parisc-linux.org?

Thanks for the report - forwarding to the developers.

-- 
dann frazier

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Hello,

I am running a 2.6.20.1 kernel on a C3600 workstation and want to hook 
up a printer to the parallel port. But modprobe'ing parport-pc or 
parport-serial gives me:

Kernel panic - not syncing: High Priority Machine Check (HPMC)

(This is using a serial line, no clue where the backtrace went...)

What is the current status of the parport driver on C3600 systems? Is 
this supposed to work? If so I am happy to provide a more thorough bug 
report.

Regards,
Julian
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On Tue, Jun 12, 2007 at 06:24:06PM -0400, John David Anglin wrote:
> > Here is the reduced diff. I removed anything that is unrelated to hppa,
> > C or anything.
> > The diff is between -7 and -12.
> > The diff is mere 300 lines long.
> > The problem lies here.
> 
> The odds are the problem lies in the change to varasm.c.

This patch is a part of PR20218.
4.1/4.2 PATCH: PR middle-end/20218: Can't use __attribute__ ((visibility ("hidden"))) to hide a symbol

I could remove this patch altogether. But I still wonder why this patch works
ok on other archs and not on hppa*.

	Seb


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> I could remove this patch altogether. But I still wonder why this patch works
> ok on other archs and not on hppa*.

hppa* does a deferred generation of plabels for indirect function calls.
I think this is affected by the change.  I don't recall exactly but there
may have been a followup patch to fix this.  Of course, this change isn't
in the 4.1 GCC tree.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Randolph Chung wrote:
>> I am running a 2.6.20.1 kernel on a C3600 workstation and want to hook 
>> up a printer to the parallel port. But modprobe'ing parport-pc or 
>> parport-serial gives me:
> 
> I think this uses suckyio. Can you post your boot log somewhere? I don't 
> know if anybody has tried this recently but it did work at some point.
> 
> Also, output of lspci -v and cat /proc/interrupts may be helpful
> 
> For HPMC, you can recover the some trace data from the boot console. See 
> http://www.parisc-linux.org/faq/kernelbug-howto.html

I have build a kernel with parport support (the first try was with 
parport as module) and was able to get a backtrace:

http://web.inf.tu-dresden.de/~s1054849/dmesg.and.hpmc.txt
http://web.inf.tu-dresden.de/~s1054849/pci.txt

The latter is from the same kernel without parport.

Regards,
Julian
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seb@frankengul.org a crit :
> On Wed, Jun 13, 2007 at 09:32:24AM -0400, John David Anglin wrote:
>>> I could remove this patch altogether. But I still wonder why this patch works
>>> ok on other archs and not on hppa*.
>> hppa* does a deferred generation of plabels for indirect function calls.
>> I think this is affected by the change.  I don't recall exactly but there
>> may have been a followup patch to fix this.  Of course, this change isn't
>> in the 4.1 GCC tree.
> 
> Ok, thanks for the explanations. I just have to figure out what it means now ;-).
> 
> Can I find this patch somewhere ? Is there any discussion on the ML ?
> The patch was discussed near January of this year on the gcc ML.
>> Dave
>> -- 
>> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
>> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

Ok, I nailed it.
I removed PR20218 patch and generated a 4.1.2-12+b1 then build glibc.

Glibc build is ok now.
I think the hppa toolchain can move on and build the glibc-2.5-11 and 
then rebuild the portmap and all pie executable (pfeww... what a bug chain).

	Seb


--------------010008070609060600050503
Content-Type: text/plain;
 name="diff-PR20218"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="diff-PR20218"

diff -r -u -b -B -w gcc-4.1-4.1.2-12/debian/changelog gcc-4.1-4.1.2-12+b1/debian/changelog
--- gcc-4.1-4.1.2-12/debian/changelog	2007-06-13 22:34:38.000000000 +0200
+++ gcc-4.1-4.1.2-12+b1/debian/changelog	2007-06-13 12:44:48.000000000 +0200
@@ -1,3 +1,9 @@
+gcc-4.1 (4.1.2-12+b1) unstable; urgency=low
+
+  * Revert 20218 patch that breaks gcc
+
+ -- Sebastien Bernard <seb@frankengul.org>  Wed, 13 Jun 2007 12:44:07 +0200
+
 gcc-4.1 (4.1.2-12) unstable; urgency=high
 
   * i386-biarch.dpatch: Update for the backport for PR target/31868.
diff -r -u -b -B -w gcc-4.1-4.1.2-12/debian/rules.patch gcc-4.1-4.1.2-12+b1/debian/rules.patch
--- gcc-4.1-4.1.2-12/debian/rules.patch	2007-06-13 22:34:38.000000000 +0200
+++ gcc-4.1-4.1.2-12+b1/debian/rules.patch	2007-06-13 12:45:06.000000000 +0200
@@ -41,8 +41,6 @@
 	fastjar-version \
 	fastjar-doc \
 	libstdc++-doxygen \
-	pr20218 \
-	pr20218-mips \
 	pr31868 \
 	arm-libffi \
 	libffi-backport \
@@ -112,10 +110,6 @@
   debian_patches += pr25524-doc pr26885-doc gcc-4.1-x86-blended-doc libjava-backport-updates2
 endif
 
-ifneq (,$(filter $(DEB_TARGET_ARCH), amd64 i386 powerpc ppc64 sparc s390))
-  debian_patches += pr20218
-endif

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From: Julian Stecklina <der_julian@web.de>
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Subject: Re: [parisc-linux] Status of parport driver in 2.6.20.1
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Randolph Chung wrote:
> Hrm, all the automatic probing in parport_pc is causing the HPMC. Can 
> you do a quick experiment and boot the kernel with "parport=0"? The 
> SuperIO driver should still register the parallel port.

It does:

SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 19)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
parport0: PC-style at 0x378, irq 5 [PCSPP]
...
lp0: using parport0 (interrupt-driven).

and CUPS just successfully printed a test page. :) I guess this should 
be documented somewhere. What about a Wiki page about current problems? 
I am happy to provide content about the parport issue and document my 
ALSA experiments, just don't know where to put it.


Regards,
Julian
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [patch] Disable parport autoprobing on !X86
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The attached patch disables auto-probing on non-X86 platforms. On many 
other platforms, autoprobing causes a machine check.

Thanks to Julian Stecklina for reporting and helping to debug the problem.

thoughts/comments?

randolph

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Disable autoprobing on non-x86 archs because it may cause machine checks.

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index b61c17b..117f273 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -3381,6 +3381,8 @@ static int __init parport_pc_init(void)
 	if (parse_parport_params())
 		return -EINVAL;
 
+	/* Most architectures do not allow auto-probing */
+#ifdef CONFIG_X86
 	if (io[0]) {
 		int i;
 		/* Only probe the ports we were given. */
@@ -3395,6 +3397,7 @@ static int __init parport_pc_init(void)
 		}
 	} else
 		parport_pc_find_ports (irqval[0], dmaval[0]);
+#endif
 
 	return 0;
 }

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Subject: Re: [parisc-linux] [patch] Disable parport autoprobing on !X86
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On Thu, 14 Jun 2007 22:36:00 +0800
Randolph Chung <randolph@tausq.org> wrote:

> The attached patch disables auto-probing on non-X86 platforms. On many 
> other platforms, autoprobing causes a machine check.
> 
> Thanks to Julian Stecklina for reporting and helping to debug the problem.
> 
> thoughts/comments?

If io[0] is set the caller has specified a port to probe which seems like
it shouldn't be ignored ?
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Subject: Re: [parisc-linux] [patch] Disable parport autoprobing on !X86
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> If io[0] is set the caller has specified a port to probe which seems like
> it shouldn't be ignored ?

if we do it that way, then it'll be trivial for root to machine check 
the box... is that ok?

randolph
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From: Kyle McMartin <kyle@parisc-linux.org>
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Hi,

As some people have noticed, I've been maintaining a "patches.git" quilt
tree on kernel.org alongside the parisc-2.6.git tree. The idea is to
branch these patches and maintain a "stable" base for people to work on
the port, without having to deal with git.

So here's v2.6.22-rc4-pa1. I'll be doing autobuilds of our defconfigs as
soon as I get a bit of sparetime when I'm not travelling to write it.

You can find the patches in:
	ftp://ftp.kernel.org/pub/linux/kernel/people/kyle/parisc/

Cheers,
	KyleM.
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On 6/10/07, Thibaut VARENE <T-Bone@parisc-linux.org> wrote:

> That happens on 64bit SMP. I'll investigate more later on. According
> to Guy Martin, this doesn't  happen on UP kernels.

I could actually corrupt an XFS fs on 32bit UP. Dunno if that bug is
related (I suspect it is). Random corruption will appear after a while
on a freshly created XFS fs, but there's a simple testcase to show
corruption actually taking place immediately:

mkfs.xfs <partition>
xfs_logprint <partition> -> the log is OK
mount <partition>
xfs_logprint <partition> -> the log is corrupted

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Helge Deller wrote:
> On Thursday 19 April 2007, Julian Stecklina wrote:
>> I have a HP Visualize workstation with this fancy little LCD at the 
>> front controllable via /proc/pdc/lcd. The problem is that the 
>> responsible driver trims all trailing whitespace, which is quite 
>> annoying if you want to scroll some text. The attached trivial patch 
>> (against 2.6.20.1) removes this behaviour.
> 
> I'm sure, there was a reason to strip the whitespaces. 
> But I forgot it by now and it was probably a not very good reason :-)
> 
> Nevertheless, the patch looks good.
> 
> Kyle, could you add the patch to your git tree ?
> -> http://lists.parisc-linux.org/pipermail/parisc-linux/attachments/20070419/d58ce234/no-space-removal.bin

As I was just browsing the git tree, I did not see the patch. Any reason 
it was not committed?

Regards,
Julian
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In-Reply-To: <200706020203.l52235DP011866@hiauly1.hia.nrc.ca> from "John David
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Xref: news.gmane.org gmane.linux.ports.parisc:24660

> This is what I see when I do a gcc_update:
> dave@mx3210:~/gnu/gcc-4.3/gcc$ contrib/gcc_update
> Updating SVN tree
> At revision 125275.
> svn: Can't read directory '.': Partial results are valid but processing is incomplete

I spent the day trying to debug why libjava fails to build on this system
with the new glibc.  It seems that scandir is broken on 64-bit kernels.
There seems to be an off by one error in copying dirent structs.  Either
the define in <dirent.h> for _D_ALLOC_NAMLEN is wrong or the kernel
sometimes returns a value for d_reclen that is sometimes too small.  The
code in fs/readdir.c suggests that sys_parisc32.c needs fixing.

The enclosed seems to fix both the libjava build and the svn problem.
Kyle's branch uses ALIGN instead of ROUND_UP.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 29be437..44400e0 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -318,7 +318,7 @@ static int filldir32 (void *__buf, const char *name, int namlen,
 {
 	struct linux32_dirent __user * dirent;
 	struct getdents32_callback * buf = (struct getdents32_callback *) __buf;
-	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1, 4);
+	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 2, 4);
 	u32 d_ino;
 
 	buf->error = -EINVAL;	/* only used if we fail.. */
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Xref: news.gmane.org gmane.linux.ports.parisc:24661

Hi,

What I initially believed to be related to the SCSI offlining problems
we had seems to be more complex than that: I can reliably kill any XFS
filesystem with current GIT TOB by just unmouting and remounting, no
matter if there's any activity on the fs.

The remount attempt will yield:

XFS mounting filesystem sdb1
XFS: Log inconsistent (didn't find previous header)
XFS: failed to find log head
XFS: log mount/recovery failed: error 5
XFS: log mount failed
mount: /dev/sdb1: can't read superblock

At this point, the fileystem is totally corrupted (I'm still running
xfs_repair, but have very little hope given the incredible amount of
errors detected on a fs that's been mounted for about 10s without any
activity on it before I tried to unmount/remount it)...

That happens on 64bit SMP. I'll investigate more later on. According
to Guy Martin, this doesn't  happen on UP kernels.

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: [parisc-linux] PATCH 2.6.22-rc2 remove globab_ack_eiem
Date: Sun, 10 Jun 2007 16:31:41 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:24662


Kudos to Thibaut Varene for spotting the (mis)use of appropriately named 
gloabl_ack_eiem. This took a long time to figure out and both insight
>from myself, Kyle McMartin, and James Bottomley were required to narrow
down which bit of code could have this race condition.

The symptom was interrupts stopped getting delivered while some workload
was generating IO interrupts on two different CPUs. One of the interrupt
sources would get masked off and stay unmasked. Problem was global_ack_eiem
was accessed with read/modified/write sequence and not protected by
a spinlock.

PA-RISC doesn't need a global ack flag though. External Interrupts
are _always_ delivered to a single CPU (except for "global broadcast
interrupt" which AFAIK currently is not used.) So we don't have to worry
about any given IRQ vector getting delivered to more than one CPU.

Tested on a500 and rp34xx boxen. rsync to/from gsyprf11 (a500)
would lock up the box since NIC (tg3) interrupt and SCSI (sym2)
were on "opposite" CPUs (2 CPU system). Put them on the same CPU
or apply this patch and 10GB of data would rsync completely.

Please apply the following critical patch.
Can you let us know if this gets into 2.6.22 before final RC is cut?

thanks,
grant

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Acked-by: Thibaut VARENE <T-Bone@parisc-linux.org>

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c5c9125..76ce5e3 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -46,14 +46,10 @@ extern irqreturn_t ipi_interrupt(int, void *);
 static volatile unsigned long cpu_eiem = 0;
 
 /*
-** ack bitmap ... habitually set to 1, but reset to zero
+** local ACK bitmap ... habitually set to 1, but reset to zero
 ** between ->ack() and ->end() of the interrupt to prevent
 ** re-interruption of a processing interrupt.
 */
-static volatile unsigned long global_ack_eiem = ~0UL;
-/*
-** Local bitmap, same as above but for per-cpu interrupts
-*/
 static DEFINE_PER_CPU(unsigned long, local_ack_eiem) = ~0UL;
 
 static void cpu_disable_irq(unsigned int irq)
@@ -94,13 +90,11 @@ void cpu_ack_irq(unsigned int irq)
 	int cpu = smp_processor_id();
 
 	/* Clear in EIEM so we can no longer process */
-	if (CHECK_IRQ_PER_CPU(irq_desc[irq].status))
-		per_cpu(local_ack_eiem, cpu) &= ~mask;
-	else
-		global_ack_eiem &= ~mask;
+	per_cpu(local_ack_eiem, cpu) &= ~mask;
 
 	/* disable the interrupt */
-	set_eiem(cpu_eiem & global_ack_eiem & per_cpu(local_ack_eiem, cpu));
+	set_eiem(cpu_eiem & per_cpu(local_ack_eiem, cpu));
+
 	/* and now ack it */
 	mtctl(mask, 23);
 }
@@ -111,13 +105,10 @@ void cpu_end_irq(unsigned int irq)
 	int cpu = smp_processor_id();
 
 	/* set it in the eiems---it's no longer in process */
-	if (CHECK_IRQ_PER_CPU(irq_desc[irq].status))
-		per_cpu(local_ack_eiem, cpu) |= mask;
-	else
-		global_ack_eiem |= mask;
+	per_cpu(local_ack_eiem, cpu) |= mask;
 
 	/* enable the interrupt */
-	set_eiem(cpu_eiem & global_ack_eiem & per_cpu(local_ack_eiem, cpu));
+	set_eiem(cpu_eiem & per_cpu(local_ack_eiem, cpu));
 }
 
 #ifdef CONFIG_SMP
@@ -354,8 +345,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	local_irq_disable();
 	irq_enter();
 
-	eirr_val = mfctl(23) & cpu_eiem & global_ack_eiem &
-		per_cpu(local_ack_eiem, cpu);
+	eirr_val = mfctl(23) & cpu_eiem & per_cpu(local_ack_eiem, cpu);
 	if (!eirr_val)
 		goto set_out;
 	irq = eirr_to_irq(eirr_val);
@@ -381,7 +371,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	return;
 
  set_out:
-	set_eiem(cpu_eiem & global_ack_eiem & per_cpu(local_ack_eiem, cpu));
+	set_eiem(cpu_eiem & per_cpu(local_ack_eiem, cpu));
 	goto out;
 }
 
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Xref: news.gmane.org gmane.linux.ports.parisc:24663

Mostly "critical" (if you can call anything on arch/parisc critical)
bugfixes against 2.6.21 that took me a while to find the time to fix up.

Thanks,
	Kyle M.

The following changes since commit d25790532370e7448e3d3bd25a17e1e9f1299816:
  Stephen Rothwell (1):
        Fix headers check fallout

are available in the git repository at:

 master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
 
Alexandr Andreev (1):
      parisc: sync compat getdents

Alexey Dobriyan (2):
      parisc: make command_line[] static
      parisc: convert /proc/gsc/pcxl_dma to seq_file

Aurelien Jarno (1):
      [PARISC] Disable LWS debugging

Grant Grundler (2):
      [PARISC] remove remnants of parisc-specific softirq code
      [PARISC] remove global_ack_eiem

Helge Deller (10):
      [PARISC] fix lasi_82596 build
      [PARISC] fix section mismatch in parport_gsc
      [PARISC] fix section mismatch in parisc STI video drivers
      [PARISC] fix section mismatch in ccio-dma
      [PARISC] fix section mismatches in arch/parisc/kernel
      [PARISC] fix section mismatch in parisc eisa driver
      [PARISC] fix section mismatch in superio serial drivers
      [PARISC] Wire up utimensat/signalfd/timerfd/eventfd syscalls
      [PARISC] fix "ENTRY" macro redefinition
      [PARISC] fix section mismatch in smp.c

Kyle McMartin (11):
      [PARISC] Move #undef to end of syscall table
      [PARISC] Wire up kexec_load syscall
      [PARISC] Let PA-8900 processors boot
      [PARISC] kobject is embedded in subsys, not kset
      [PARISC] Build fixes for power.c
      [PARISC] fix trivial spelling nit in asm/linkage.h
      [PARISC] fix null ptr deref in unwind.c
      [PARISC] fix "reduce size of task_struct on 64-bit machines" fallout
      [PARISC] be more defensive in process.c::get_wchan
      [PARISC] Fix bug when syscall nr is __NR_Linux_syscalls
      [PARISC] Fix kernel panic in check_ivt

Milind Arun Choudhary (2):
      [PARISC] ROUND_UP macro cleanup in arch/parisc
      [PARISC] ROUNDUP macro cleanup in drivers/parisc

Simon Arlott (1):
      [PARISC] spelling fixes: arch/parisc/

 arch/parisc/hpux/fs.c              |    5 +-
 arch/parisc/kernel/entry.S         |   40 +--------------
 arch/parisc/kernel/firmware.c      |    4 +-
 arch/parisc/kernel/hardware.c      |   14 +++--
 arch/parisc/kernel/hpmc.S          |    5 +--
 arch/parisc/kernel/irq.c           |   26 +++-------
 arch/parisc/kernel/pci-dma.c       |   94 ++++++++++++++++++++----------------
 arch/parisc/kernel/perf.c          |   18 ++++---
 arch/parisc/kernel/process.c       |    4 ++
 arch/parisc/kernel/processor.c     |   14 +++---
 arch/parisc/kernel/setup.c         |    5 +-
 arch/parisc/kernel/signal32.h      |    2 +-
 arch/parisc/kernel/smp.c           |    8 ++--
 arch/parisc/kernel/sys_parisc32.c  |   13 ++++--
 arch/parisc/kernel/syscall.S       |   12 ++--
 arch/parisc/kernel/syscall_table.S |   16 ++++--
 arch/parisc/kernel/time.c          |    2 +-
 arch/parisc/kernel/traps.c         |    9 ++--
 arch/parisc/kernel/unwind.c        |    4 +-
 arch/parisc/math-emu/dbl_float.h   |    4 +-
 arch/parisc/math-emu/dfsqrt.c      |    2 +-
 arch/parisc/math-emu/sfsqrt.c      |    2 +-
 arch/parisc/math-emu/sgl_float.h   |    4 +-
 arch/parisc/mm/init.c              |   10 ++--
 drivers/net/lasi_82596.c           |    1 +
 drivers/parisc/ccio-dma.c          |   14 +++---
 drivers/parisc/eisa.c              |    4 +-
 drivers/parisc/iommu-helpers.h     |    4 +-
 drivers/parisc/pdc_stable.c        |    2 +-
 drivers/parisc/power.c             |    1 +
 drivers/parisc/sba_iommu.c         |    6 +--
 drivers/parisc/superio.c           |    8 ++--
 drivers/parport/parport_gsc.c      |    2 +-
 drivers/video/console/sticore.c    |   50 ++++++++++----------
 include/asm-parisc/hardware.h      |    5 +-
 include/asm-parisc/linkage.h       |    5 ++-
 include/asm-parisc/processor.h     |    8 ++--
 include/asm-parisc/unistd.h        |   13 +++++-
 38 files changed, 221 insertions(+), 219 deletions(-)
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- Fix unwind record processing on 64-bit systems - this was affected by the
  PAGE_OFFSET change a few months back
- Add special-case handling for "handle_interruption" so that we can rewind
  past the interruption. This is useful for seeing what caused a BUG() or 
  WARN_ON(); otherwise the unwind stops at the interruption.

Signed-off-by: Randolph Chung <tausq@debian.org>

index e70f57e..e06da53 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -16,16 +16,20 @@
 
 #include <asm/uaccess.h>
 #include <asm/assembly.h>
+#include <asm/asm-offsets.h>
+#include <asm/ptrace.h>
 
 #include <asm/unwind.h>
 
 /* #define DEBUG 1 */
 #ifdef DEBUG
 #define dbg(x...) printk(x)
 #else
 #define dbg(x...)
 #endif
 
+#define KERNEL_START (KERNEL_BINARY_TEXT_START - 0x1000)
+
 extern struct unwind_table_entry __start___unwind[];
 extern struct unwind_table_entry __stop___unwind[];
 
@@ -197,6 +201,29 @@ static int unwind_init(void)
 	return 0;
 }
 
+#ifdef CONFIG_64BIT
+#define get_func_addr(fptr) fptr[2]
+#else
+#define get_func_addr(fptr) fptr[0]
+#endif
+
+static int unwind_special(struct unwind_frame_info *info, unsigned long pc, int frame_size)
+{
+	void handle_interruption(int, struct pt_regs *);
+	static unsigned long *hi = (unsigned long)&handle_interruption;
+
+	if (pc == get_func_addr(hi)) {
+		struct pt_regs *regs = (struct pt_regs *)(info->sp - frame_size - PT_SZ_ALGN);
+		dbg("Unwinding through handle_interruption()\n");
+		info->prev_sp = regs->gr[30];
+		info->prev_ip = regs->iaoq[0];
+
+		return 1;
+	}
+
+	return 0;
+}
+
 static void unwind_frame_regs(struct unwind_frame_info *info)
 {
 	const struct unwind_table_entry *e;
@@ -310,13 +337,15 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
 			}
 		}
 
-		info->prev_sp = info->sp - frame_size;
-		if (e->Millicode)
-			info->rp = info->r31;
-		else if (rpoffset)
-			info->rp = *(unsigned long *)(info->prev_sp - rpoffset);
-		info->prev_ip = info->rp;
-		info->rp = 0;
+		if (!unwind_special(info, e->region_start, frame_size)) {
+			info->prev_sp = info->sp - frame_size;
+			if (e->Millicode)
+				info->rp = info->r31;
+			else if (rpoffset)
+				info->rp = *(unsigned long *)(info->prev_sp - rpoffset);
+			info->prev_ip = info->rp;
+			info->rp = 0;
+		}
 
 		dbg("analyzing func @ %lx, setting prev_sp=%lx "
 		    "prev_ip=%lx npc=%lx\n", info->ip, info->prev_sp, 
index 7e9afa7..21fbfc5 100644
--- a/include/asm-parisc/system.h
+++ b/include/asm-parisc/system.h
@@ -188,7 +188,6 @@ static inline void set_eiem(unsigned long val)
 # define __lock_aligned __attribute__((__section__(".data.lock_aligned")))
 #endif
 
-#define KERNEL_START (0x10100000 - 0x1000)
 #define arch_align_stack(x) (x)
 
 #endif

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Xref: news.gmane.org gmane.linux.ports.parisc:24665

On Friday 15 June 2007, Julian Stecklina wrote:
> Helge Deller wrote:
> > On Thursday 19 April 2007, Julian Stecklina wrote:
> >> I have a HP Visualize workstation with this fancy little LCD at the 
> >> front controllable via /proc/pdc/lcd. The problem is that the 
> >> responsible driver trims all trailing whitespace, which is quite 
> >> annoying if you want to scroll some text. The attached trivial patch 
> >> (against 2.6.20.1) removes this behaviour.
> > 
> > I'm sure, there was a reason to strip the whitespaces. 
> > But I forgot it by now and it was probably a not very good reason :-)
> > 
> > Nevertheless, the patch looks good.
> > 
> > Kyle, could you add the patch to your git tree ?
> > -> http://lists.parisc-linux.org/pipermail/parisc-linux/attachments/20070419/d58ce234/no-space-removal.bin
> 
> As I was just browsing the git tree, I did not see the patch. Any reason 
> it was not committed?

It seems it has been forgotten to be merged into Kyle's tree and thus it didn't went upstream.
Please, resend the full patch again to this list, add Kyle McMartin <kyle@parisc-linux.org> to CC and (most important) do not forget to add your "signed-off" line.

Thanks,
Helge
_______________________________________________
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This is a multi-part message in MIME format.
--------------090207030900070903060907
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Hello,

The attached patch removes the behaviour that writes to /proc/pdc/lcd 
are whitespace trimmed.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
(See thread "LCD driver trims whitespace" for reference.)

Regards,
Julian
--
Julian Stecklina
http://berzerkely.net/

"Dealing with failure is easy: Work hard to improve. Success is also
easy to handle: You've solved the wrong problem. Work hard to
improve." - Alan Perlis

--------------090207030900070903060907
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diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index 98be288..e5d7ed9 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -195,12 +195,6 @@ static int led_proc_write(struct file *file, const char *buf,
 
 	cur = lbuf;
 
-	/* skip initial spaces */
-	while (*cur && isspace(*cur))
-	{
-		cur++;
-	}

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Hello Kyle,

I was trying your patch v2.6.22-rc4 and fiure out some warnings:

/CAD/linux-2.6.22-rc4/drivers/parisc/dino.c:821: warning: format =91%lx=92=
 expects
type =91long unsigned int=92, but argument 4 has type =91resource_size_t=92=

/CAD/linux-2.6.22-rc4/drivers/parisc/dino.c:821: warning: format =91%lx=92=
 expects
type =91long unsigned int=92, but argument 5 has type =91resource_size_t=92=

/CAD/linux-2.6.22-rc4/drivers/parisc/dino.c:901: warning: format =91%lx=92=
 expects
type =91long unsigned int=92, but argument 3 has type =91resource_size_t=92=

/CAD/linux-2.6.22-rc4/drivers/parisc/dino.c:901: warning: format =91%lx=92=
 expects
type =91long unsigned int=92, but argument 4 has type =91resource_size_t=92=

/CAD/linux-2.6.22-rc4/drivers/parisc/asp.c:85: warning: format =91%lx=92 =
expects
type =91long unsigned int=92, but argument 4 has type =91resource_size_t=92=

/CAD/linux-2.6.22-rc4/drivers/parisc/eisa.c:317: warning: format =91%08lx=
=92
expects type =91long unsigned int=92, but argument 3 has type =91resource=
_size_t=92
/CAD/linux-2.6.22-rc4/drivers/parisc/eisa_enumerator.c:101: warning: form=
at
=91%lx=92 expects type =91long unsigned int=92, but argument 2 has type =91=
resource_size_t=92
/CAD/linux-2.6.22-rc4/drivers/parisc/eisa_enumerator.c:101: warning: form=
at
=91%lx=92 expects type =91long unsigned int=92, but argument 3 has type =91=
resource_size_t=92
/CAD/linux-2.6.22-rc4/drivers/parisc/eisa_enumerator.c:191: warning: form=
at
=91%lx=92 expects type =91long unsigned int=92, but argument 2 has type =91=
resource_size_t=92
/CAD/linux-2.6.22-rc4/drivers/parisc/eisa_enumerator.c:191: warning: form=
at
=91%lx=92 expects type =91long unsigned int=92, but argument 3 has type =91=
resource_size_t=92
/CAD/linux-2.6.22-rc4/drivers/parport/parport_gsc.c:362: warning: format =
=91%lx=92
expects type =91long unsigned int=92, but argument 2 has type =91resource=
_size_t=92
/CAD/linux-2.6.22-rc4/drivers/serial/8250_gsc.c:44: warning: format =91%l=
x=92
expects type =91long unsigned int=92, but argument 2 has type =91resource=
_size_t=92

I just got this SomeStuff.diff.

(imho just the same kind of patch already applied upstream a while ago,
regarding resource_size_t change:
<http://www.linuxhq.com/kernel/v2.6/18/kernel/resource.c>)

Fill free to use it at your best convenience.

J.

=0A---=0Ahttp://www.scarlet.be/
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From: Julian Stecklina <der_julian@web.de>
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Subject: [parisc-linux] LCD driver trims whitespace (again again)
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Hello,

Due to my violation of rules, here comes it again...

The attached patch removes the behaviour that writes to /proc/pdc/lcd
are whitespace trimmed. This patch applies to Kyle's parisc git tree.

Signed-off-by: Julian Stecklina <der_julian@web.de>
(See thread "LCD driver trims whitespace" for reference.)

Regards,
Julian

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diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index 98be288..e5d7ed9 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -195,12 +195,6 @@ static int led_proc_write(struct file *file, const char *buf,
 
 	cur = lbuf;
 
-	/* skip initial spaces */
-	while (*cur && isspace(*cur))
-	{
-		cur++;
-	}

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Subject: Re: [parisc-linux] LCD driver trims whitespace (again again)
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On Monday 18 June 2007, Julian Stecklina wrote:
> The attached patch removes the behaviour that writes to /proc/pdc/lcd
> are whitespace trimmed. This patch applies to Kyle's parisc git tree.
> 
> Signed-off-by: Julian Stecklina <der_julian@web.de>

Acked-by: Helge Deller <deller@gmx.de>
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The following small test case - which is itself wrong - crashes 2.6.22-rc5 (32bit kernel) badly:

#include <stdio.h>
int main()
{
        int *ptr = (int *) 0xffffffff;
        printf("ptr=%x, val=%d\n", ptr, *ptr);
}

dmesg reports:
--------------------
a.out(1750): unaligned access to 0xffffffff at ip=0x000104e3
Unaligned handler failed, ret = -2
a.out (pid 1750): Unaligned data reference (code 28) at 000104e3

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111000001011 Not tainted
r00-03  0006fe0b 40218aa0 40419567 c01d3780
r04-07  405349d4 00000000 00000000 c01d35a4
r08-11  c035000a 00000001 0004b6d8 000119ee
r12-15  00050ed8 00050ed8 0004b6d8 00050ed8
r16-19  c0350818 0004b6d8 0004b6d8 00000000
r20-23  00000000 00000000 000104c4 000119de
r24-27  c01d35ac c01d35a4 00000001 000119b0
r28-31  ffffffff 00000001 c01d37c0 40204277
sr00-03  00000219 00000000 00000000 00000219
sr04-07  00000219 00000219 00000219 00000219

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  11b894e88f614600 000000001017ade8 00000000105d2010 0000000000000000
fr08-11  11b3ad3cfffffff4 104d524c00000003 0000000011b894e8 0000000000000002
fr12-15  00000000105d8ed0 105d201010178574 11b4422c10464300 1067d2b8105d2010
fr16-19  105d8e88fffff000 8ff150001017af24 0000000f8ff15000 106794601067ca10
fr20-23  0000000f105a3010 105a30101017aa4c 000012e000000970 00001c507188c177
fr24-27  0000000200000000 0000000000000000 00000000105d8810 105a2b3c3b9aca00
fr28-31  105d8e88fffff000 8ff15000101775f0 0000000000100000 0000000200000000

IASQ: 00000219 00000219 IAOQ: 000104e3 000104e7
 IIR: 0f801093    ISR: 00000219  IOR: ffffffff
 CPU:        0   CR30: 8c128000 CR31: 10628000
 ORIG_R28: 4021bbd8
 IAOQ[0]: 0x104e0
 IAOQ[1]: 0x104e4
 RP(r2): 0x40419564
------------[ cut here ]------------
kernel BUG at mm/mmap.c:1991!

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001100000000000001111 Not tainted
r00-03  0006000f 10268800 10127ff4 8e83bbb8
r04-07  00000000 8e83bbb8 00000001 0000000b
r08-11  8f60e5b4 8f60e3b8 8c128108 000119ee
r12-15  00050ed8 00050ed8 0004b6d8 00050ed8
r16-19  8f60e3b8 0004b6d8 0004b6d8 00000001
r20-23  1067b6a4 8c9da94c 6b6b6b6b 00000000
r24-27  00000000 0000006b 8c9da8f8 10578010
r28-31  00000000 8c9da8f0 8c128380 101775b8
sr00-03  00000000 00000000 00000000 0000021b
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1016a144 1016a148
 IIR: 03ffe01f    ISR: 10240001  IOR: 9ee7b658
 CPU:        0   CR30: 8c128000 CR31: 10628000
 ORIG_R28: 0004b6d8
 IAOQ[0]: exit_mmap+0x130/0x14c
 IAOQ[1]: exit_mmap+0x134/0x14c
 RP(r2): mmput+0x68/0x108
Backtrace:
 [<101073f0>] die_if_kernel+0x130/0x198
 [<10107544>] handle_break+0x88/0xec
 [<10107dcc>] handle_interruption+0x570/0x58c
 [<1010b078>] intr_check_sig+0x0/0x34

Fixing recursive fault but reboot is needed!
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From - Thu Nov 08 21:36:04 2018
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From: "Joel Soete" <soete.joel@scarlet.be>
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Subject: Re: [parisc-linux] Unaligned handler broken (kernel BUG at 
	mm/mmap.c:1991!)
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> Hi Joel,
> 
> Von: "Joel Soete" <soete.joel@scarlet.be>
> > Did your system actually crashed?
> 
> No it didn't.
>  
> > I run your test case and read well same messages on console but my b1=
80
> > runing also 2.6.22-rc5-pa1 (a merge of mine obviously) was still 
> > alive after this run???
> 
> Yes.
> 
> > Even thought I don't know what to thought about ultimate message:
> > "Fixing ... but reboot is needed!"
> 
> Yeah. There is some major bug though : "kernel BUG at mm/mmap.c:1991!"
>  
> > A critical pb would launch a LPMC or a panic?
> 
> That's the worst thing which can happen.
> 
> > Should I actualy reboot it (as it's still alive)?
> 
> I have no idea. Probably the best is to reboot.
> 
Yes I think so too (leds on b180 were flashing badly?)

Thx,
    Joel

> Helge
> -- 
> Psssst! Schon vom neuen GMX MultiMessenger geh=F6rt?
> Der kanns mit allen: http://www.gmx.net/de/go/multimessenger
> 
> =0A---=0Ahttp://www.scarlet.be/



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From: Kyle McMartin <kyle@mcmartin.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Unaligned handler broken (kernel BUG at mm/mmap.c:1991!)
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On Mon, Jun 18, 2007 at 09:31:06PM +0200, Helge Deller wrote:
> The following small test case - which is itself wrong - crashes 2.6.22-rc5 (32bit kernel) badly:
> 
> #include <stdio.h>
> int main()
> {
>         int *ptr = (int *) 0xffffffff;
>         printf("ptr=%x, val=%d\n", ptr, *ptr);
> }
> 

I have a fix for this, will post after rudimentary testing.

Cheers,
	Kyle



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Subject: Re: [parisc-linux] Unaligned handler broken (kernel BUG at 
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Xref: news.gmane.org gmane.linux.ports.parisc:24673

Hello Helge,

Did your system actually crashed?

I run your test case and read well same messages on console but my b180 r=
uning
also 2.6.22-rc5-pa1 (a merge of mine obviously) was still alive after thi=
s run???

Even thought I don't know what to thought about ultimate message:
"Fixing ... but reboot is needed!"

A critical pb would launch a LPMC or a panic?

Should I actualy reboot it (as it's still alive)?

Thx,
    Joel
=0A---=0Ahttp://www.scarlet.be/

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Subject: Re: [parisc-linux] Unaligned handler broken (kernel BUG at 
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Hi Joel,

Von: "Joel Soete" <soete.joel@scarlet.be>
> Did your system actually crashed?

No it didn't.
 
> I run your test case and read well same messages on console but my b180
> runing also 2.6.22-rc5-pa1 (a merge of mine obviously) was still 
> alive after this run???

Yes.

> Even thought I don't know what to thought about ultimate message:
> "Fixing ... but reboot is needed!"

Yeah. There is some major bug though : "kernel BUG at mm/mmap.c:1991!"
 
> A critical pb would launch a LPMC or a panic?

That's the worst thing which can happen.

> Should I actualy reboot it (as it's still alive)?

I have no idea. Probably the best is to reboot.

Helge
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Subject: Re: [parisc-linux] Unaligned handler broken (kernel BUG at
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Xref: news.gmane.org gmane.linux.ports.parisc:24675

Hi Kyle,

On Wednesday 20 June 2007, Kyle McMartin wrote:
> On Mon, Jun 18, 2007 at 09:31:06PM +0200, Helge Deller wrote:
> > The following small test case - which is itself wrong - crashes 2.6.22-rc5 (32bit kernel) badly:
> > 
> > #include <stdio.h>
> > int main()
> > {
> >         int *ptr = (int *) 0xffffffff;
> >         printf("ptr=%x, val=%d\n", ptr, *ptr);
> > }
> > 
> 
> I have a fix for this, will post after rudimentary testing.

I remembered, that I saw similiar problems with the LTP testsuite last december.
It's in the archives as thread named "kernel BUG at mm/mmap.c:1990".

In the end Willy (and I think you as well!) helped me to track the problem down on IRC.
The final patch which solved this issue is this one, which we had in our old git tree, but which never made it upstream:
http://git.parisc-linux.org/?p=linux-2.6.git;a=commitdiff;h=0590a4f2beee1d489050cb0ca035294892a46a40

Helge

PS: I would surround the if-clause check with likely() today...
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http://ftp.kernel.org/pub/linux/kernel/people/kyle/parisc/2.6.22-rc5/v2.6.22-rc5-pa2.diff.bz2

 parisc/led-lcd-no-space-removal.patch
 parisc/mmap-handle-expand_upwards-wrap.patch

added:
+parisc/fix-64bit-unwinding.patch
+parisc/unwinder-improvements.patch
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Hi Linus,

Just a few last minute critical bugfixes for parisc for 2.6.22.

Cheers,
	Kyle M.

The following changes since commit 188e1f81ba31af1b65a2f3611df4c670b092bbac:
  Linus Torvalds (1):
        Linux 2.6.22-rc5

are available in the git repository at:

  /pub/scm/linux/kernel/git/kyle/parisc-2.6.git master

Helge Deller (1):
      [PARISC] Handle wrapping in expand_upwards()

Julian Stecklina (1):
      [PARISC] stop lcd driver from stripping initial whitespace

Randolph Chung (2):
      [PARISC] Fix unwinder on 64-bit kernels
      [PARISC] unwinder improvements

 arch/parisc/kernel/unwind.c |   43 ++++++++++++++++++++++++++++++++++++-------
 drivers/parisc/led.c        |    6 ------
 include/asm-parisc/system.h |    1 -
 mm/mmap.c                   |    9 +++++++--
 4 files changed, 43 insertions(+), 16 deletions(-)
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http://ftp.kernel.org/pub/linux/kernel/people/kyle/parisc/2.6.22-rc5/v2.6.22-rc5-pa1.diff.bz2

added:
+parisc/led-lcd-no-space-removal.patch
+parisc/mmap-handle-expand_upwards-wrap.patch

merged:
-parisc/make-command_line-static.patch
-parisc/sync-compat-getdents.patch
-parisc/move-undef-to-end-of-syscall-table.patch
-parisc/wire-up-kexec_load-syscall.patch
-parisc/convert-proc-gsc-pcxl_dma-to-seq_file.patch
-parisc/let-pa8900-processors-boot.patch
-parisc/disable-lws-debugging.patch
-parisc/spelling-fixes-arch-parisc.patch
-parisc/ROUND_UP-macro-cleanup-in-arch-parisc.patch
-parisc/ROUNDUP-macro-cleanup-in-drivers-parisc.patch
-parisc/kobject-is-embedded-in-subsys-not-kset.patch
-parisc/build-fixes-for-power.c.patch
-parisc/fix-lasi_82596-build.patch
-parisc/fix-section-mismatch-in-parport_gsc.patch
-parisc/fix-section-mismatch-in-parisc-STI-video-dr.patch
-parisc/fix-section-mismatch-in-ccio-dma.patch
-parisc/fix-section-mismatches-in-arch-parisc-kerne.patch
-parisc/fix-section-mismatch-in-parisc-eisa-driver.patch
-parisc/fix-section-mismatch-in-superio-serial-driv.patch
-parisc/wire-up-utimensat-signalfd-timerfd-eventfd.patch
-parisc/fix-ENTRY-macro-redefinition.patch
-parisc/fix-section-mismatch-in-smp.c.patch
-parisc/remove-remnants-of-parisc-specific-softirq.patch
-parisc/fix-trivial-spelling-nit-in-asm-linkage.h.patch
-parisc/fix-null-ptr-deref-in-unwind.c.patch
-parisc/fix-reduce-size-of-task_struct-on-64-bit-m.patch
-parisc/be-more-defensive-in-process.c-get_wchan.patch
-parisc/fix-bug-when-syscall-nr-is-__NR_Linux_sysca.patch
-parisc/fix-kernel-panic-in-check_ivt.patch
-parisc/remove-global_ack_eiem.patch
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On Sun, Jun 03, 2007 at 09:47:10PM -0400, John David Anglin wrote:
> > I don't suppose you could strace in a chroot with a older working glibc
> > and see what syscalls are there?
> 
> Probably, I won't have time until next weekend.
>

Could you try this patch?

Thanks,
	Kyle M.

>>>From 0deea67e075b5152d427426583500b8d9cf0a56c Mon Sep 17 00:00:00 2001
From: Kyle McMartin <kyle@parisc-linux.org>
Date: Fri, 29 Jun 2007 03:38:10 -0400
Subject: [PARISC] Use compat_sys_getdents

Switch to using the generic compat_sys_getdents instead of a
homebrew one.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
 arch/parisc/kernel/sys_parisc32.c  |  141 ------------------------------------
 arch/parisc/kernel/syscall_table.S |    4 +-
 2 files changed, 1 insertions(+), 144 deletions(-)

diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index bb23ff7..2989c66 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -285,147 +285,6 @@ int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
 	return err;
 }
 
-struct linux32_dirent {
-	u32		d_ino;
-	compat_off_t	d_off;
-	u16		d_reclen;
-	char		d_name[1];
-};
-
-struct old_linux32_dirent {
-	u32	d_ino;
-	u32	d_offset;
-	u16	d_namlen;
-	char	d_name[1];
-};
-
-struct getdents32_callback {
-	struct linux32_dirent __user * current_dir;
-	struct linux32_dirent __user * previous;
-	int count;
-	int error;
-};
-
-struct readdir32_callback {
-	struct old_linux32_dirent __user * dirent;
-	int count;
-};
-
-#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
-static int filldir32 (void *__buf, const char *name, int namlen,
-			loff_t offset, u64 ino, unsigned int d_type)
-{
-	struct linux32_dirent __user * dirent;
-	struct getdents32_callback * buf = (struct getdents32_callback *) __buf;
-	int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 1, 4);
-	u32 d_ino;
-
-	buf->error = -EINVAL;	/* only used if we fail.. */
-	if (reclen > buf->count)
-		return -EINVAL;
-	d_ino = ino;
-	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
-		return -EOVERFLOW;
-	dirent = buf->previous;
-	if (dirent)
-		put_user(offset, &dirent->d_off);
-	dirent = buf->current_dir;
-	buf->previous = dirent;
-	put_user(d_ino, &dirent->d_ino);
-	put_user(reclen, &dirent->d_reclen);
-	copy_to_user(dirent->d_name, name, namlen);
-	put_user(0, dirent->d_name + namlen);
-	dirent = ((void __user *)dirent) + reclen;
-	buf->current_dir = dirent;
-	buf->count -= reclen;
-	return 0;
-}
-
-asmlinkage long
-sys32_getdents (unsigned int fd, void __user * dirent, unsigned int count)
-{
-	struct file * file;
-	struct linux32_dirent __user * lastdirent;
-	struct getdents32_callback buf;
-	int error;
-
-	error = -EFAULT;
-	if (!access_ok(VERIFY_WRITE, dirent, count))
-		goto out;
-
-	error = -EBADF;
-	file = fget(fd);
-	if (!file)
-		goto out;
-
-	buf.current_dir = (struct linux32_dirent __user *) dirent;
-	buf.previous = NULL;
-	buf.count = count;
-	buf.error = 0;
-
-	error = vfs_readdir(file, filldir32, &buf);
-	if (error < 0)
-		goto out_putf;
-	error = buf.error;
-	lastdirent = buf.previous;
-	if (lastdirent) {
-		if (put_user(file->f_pos, &lastdirent->d_off))
-			error = -EFAULT;
-		else
-			error = count - buf.count;
-	}
-
-out_putf:
-	fput(file);
-out:
-	return error;
-}
-
-static int fillonedir32(void * __buf, const char * name, int namlen,
-			loff_t offset, u64 ino, unsigned int d_type)
-{
-	struct readdir32_callback * buf = (struct readdir32_callback *) __buf;
-	struct old_linux32_dirent __user * dirent;
-	u32 d_ino;
-
-	if (buf->count)
-		return -EINVAL;
-	d_ino = ino;
-	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
-		return -EOVERFLOW;
-	buf->count++;
-	dirent = buf->dirent;
-	put_user(d_ino, &dirent->d_ino);
-	put_user(offset, &dirent->d_offset);
-	put_user(namlen, &dirent->d_namlen);
-	copy_to_user(dirent->d_name, name, namlen);
-	put_user(0, dirent->d_name + namlen);
-	return 0;
-}
-
-asmlinkage long
-sys32_readdir (unsigned int fd, void __user * dirent, unsigned int count)
-{
-	int error;
-	struct file * file;
-	struct readdir32_callback buf;
-
-	error = -EBADF;
-	file = fget(fd);
-	if (!file)
-		goto out;
-
-	buf.count = 0;
-	buf.dirent = dirent;
-
-	error = vfs_readdir(file, fillonedir32, &buf);
-	if (error >= 0)
-		error = buf.count;
-	fput(file);
-out:
-	return error;
-}

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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] -pie is broken on hppa
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Cc: matthew@wil.cx,
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> Could you try this patch?

I installed it last night.  svn works, gcc bootstraps and I haven't
seen any other problems.  There was a problem building libjava with
the getdents bug.

> -	/* struct linux_dirent has longs, like 'unsigned long d_ino' which
> -	 * almost definitely should be 'ino_t d_ino' but it's too late now */

This is my only concern.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] -pie is broken on hppa
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On Sat, Jun 30, 2007 at 11:44:13AM -0400, John David Anglin wrote:
> > Could you try this patch?
> 
> I installed it last night.  svn works, gcc bootstraps and I haven't
> seen any other problems.  There was a problem building libjava with
> the getdents bug.
>

OK. I'll try to build a HEAD kernel and boot with an old glibc to see if
it fucks up. Is there a really easy testcase I can try to reproduce
this?

> > -	/* struct linux_dirent has longs, like 'unsigned long d_ino' which
> > -	 * almost definitely should be 'ino_t d_ino' but it's too late now */
> 
> This is my only concern.
> 

It should be fine, since all other compat arches have the same problem.
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Subject: Re: [parisc-linux] glibc is broken because of gcc
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Mon, Jul 02, 2007 at 09:58:45PM -0400, John David Anglin wrote:
[snip]
> 
> Looking at gcc PR 20218, it's clear that there are some very subtle
> issues here.  So, it's not clear to me where the problem lies.  It
> could be in glibc (hppa sysdep-cancel.h), binutils or gcc.  The handling
> of the visibility attribute was broken prior to HJL's change, so it
> could have exposed bugs in other packages.
> 
> Because of this, it was a mistake for Debian to backport this change.
> The change is only in the unreleased gcc trunk.
> 
> Since the problem was introduced by a gcc change, I'd start with
> a gcc PR and mention the patch that introduced the regression.
> 
> Could you do glibc builds with the gcc trunk before and after the change?
> It's best to base the PR on an unmodified version of gcc.

The test with the gcc-trunk (Main 4.3.0 head) shows the same error at the same place.
By the way, did I mention that the problem is not present if nptl is enabled ?

> 
> It would help to know the exact details of the linker command that
> fails, the assembler code generated for mq_timedreceive, and the
> __librt_multiple_threads symbols in __librt_multiple_threads librt.so.

Did you had a look at the info I sent you  (see my previous message) ?

What do you think of this ?

	Seb

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Subject: Re: [parisc-linux] glibc is broken because of gcc
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> > Could you do glibc builds with the gcc trunk before and after the change?
> > It's best to base the PR on an unmodified version of gcc.
> 
> The test with the gcc-trunk (Main 4.3.0 head) shows the same error at the same place.

Ok, it would be useful to file a gcc PR to start.  However, it's not
clear that gcc is a fault.

It may be that glibc isn't using the visibility attribute correctly
for this symbol (i.e., hiding a symbol that is externally referenced).
You could try building glibc with the attribute removed.  This might
be somewhat hppa specific because of the nptl issue.

> > It would help to know the exact details of the linker command that
> > fails, the assembler code generated for mq_timedreceive, and the
> > __librt_multiple_threads symbols in __librt_multiple_threads librt.so.
> 
> Did you had a look at the info I sent you  (see my previous message) ?

I looked at it briefly but don't have a comment at the moment.  I was
hoping to figure out which package is responsible for this problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On 05/07/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > > Could you do glibc builds with the gcc trunk before and after the change?
> > > It's best to base the PR on an unmodified version of gcc.
> >
> > The test with the gcc-trunk (Main 4.3.0 head) shows the same error at the same place.
>
> Ok, it would be useful to file a gcc PR to start.  However, it's not
> clear that gcc is a fault.
>
> It may be that glibc isn't using the visibility attribute correctly
> for this symbol (i.e., hiding a symbol that is externally referenced).
> You could try building glibc with the attribute removed.  This might
> be somewhat hppa specific because of the nptl issue.

As long as LinuxThreads isn't built, this problem doesn't come up.  It
seems very likely that it's a glibc problem, then.  The Ubuntu builds
are NPTL-only and don't show this problem.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/


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Subject: [parisc-linux] Re: glibc testsuite failures,
	3 odd filesystem issues.
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On 03/05/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> On 5/3/07, Carlos O'Donell <carlos@systemhalted.org> wrote:

(details on tests snipped)

> Triage complete!

Heya Carlos!  FYI that glibc-2.6-0ubuntu2 (being uploaded soonish) now
matches your set of testsuite failures.  The changes from Debian are:
dropped LT support, built with gcc-4.2.  The tst-mqueue3 failure is
probably the next one I'll investigate, since it's a regression from
being built with gcc-4.1.

Thanks!

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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Jeff Bailey a écrit :
> On 05/07/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
>>>> Could you do glibc builds with the gcc trunk before and after the change?
>>>> It's best to base the PR on an unmodified version of gcc.
>>> The test with the gcc-trunk (Main 4.3.0 head) shows the same error at the same place.
>> Ok, it would be useful to file a gcc PR to start.  However, it's not
>> clear that gcc is a fault.
>>
>> It may be that glibc isn't using the visibility attribute correctly
>> for this symbol (i.e., hiding a symbol that is externally referenced).
>> You could try building glibc with the attribute removed.  This might
>> be somewhat hppa specific because of the nptl issue.
> 
> As long as LinuxThreads isn't built, this problem doesn't come up.  It
> seems very likely that it's a glibc problem, then.  The Ubuntu builds
> are NPTL-only and don't show this problem.
> 

On the other hand, the LinuxThreads build on other architectures are
still fine even with the latest gcc in Debian.

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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> On the other hand, the LinuxThreads build on other architectures are
> still fine even with the latest gcc in Debian.

Is the __librt_multiple_threads symbol defined, undefined or not
used in librt.so?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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> On Sat, Jun 30, 2007 at 11:44:13AM -0400, John David Anglin wrote:
> > > Could you try this patch?
> > 
> > I installed it last night.  svn works, gcc bootstraps and I haven't
> > seen any other problems.  There was a problem building libjava with
> > the getdents bug.
> >
> 
> OK. I'll try to build a HEAD kernel and boot with an old glibc to see if
> it fucks up. Is there a really easy testcase I can try to reproduce
> this?

I phrased my response badly.  I haven't seen any new problems and
the change fixes the libjava build problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] -pie is broken on hppa
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On 29/06/07, Kyle McMartin <kyle@mcmartin.ca> wrote:
> On Sun, Jun 03, 2007 at 09:47:10PM -0400, John David Anglin wrote:
> > > I don't suppose you could strace in a chroot with a older working glibc
> > > and see what syscalls are there?
> >
> > Probably, I won't have time until next weekend.
> >
>
> Could you try this patch?

I tried it to see if it would fix the strangeness in the glibc
testsuite where three tests can't find files, but if run a couple
seconds later finds them fine.  It doesn't fix this, but it also
doesn't cause any further regressions.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [palo patch] Implement CTRL-U functionality
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This is a multi-part message in MIME format.
--------------040204040303090305040207
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I keep on meaning to do this, and have finally done it.....

The attached patch makes the palo "editor" understand CTRL-U, so that 
you can quickly clear out a particular command line parameter.

Any comments? If not I will commit this in a few days, and hope that the 
Debian/Ubuntu/Gentoo folks eventually pick it up :)

randolph

--------------040204040303090305040207
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diff --git a/ipl/lib.c b/ipl/lib.c
index 544385e..06d790c 100644
--- a/ipl/lib.c
+++ b/ipl/lib.c
@@ -242,6 +242,17 @@ char *enter_text(char *txt, int maxchars)
 		putchar(' ');
 		putchar(c);
 	    }
+	} else if (c == 21)
+	{			/* CTRL-U */
+	    while (pos)
+	    {
+		pos--;
+		c='\b';
+		putchar(c);
+		putchar(' ');
+		putchar(c);
+	    }
+	    txt[0] = 0;
 	} else if ((pos < maxchars) && c >= ' ')
 	{
 	    txt[pos] = c;

--------------040204040303090305040207
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The proposed fix seems to be wrong, as it disables the backport on all
architectures.  Please could you recheck with current trunk? As jda
suggested, another backport is missing for hppa.

  Matthias

S=E9bastien Bernard writes:
> Ok, I nailed it.
> I removed PR20218 patch and generated a 4.1.2-12+b1 then build glibc.=

>=20
> Glibc build is ok now.
> I think the hppa toolchain can move on and build the glibc-2.5-11 and=
=20
> then rebuild the portmap and all pie executable (pfeww... what a bug =
chain).
>=20
> =09Seb
>=20
> diff -r -u -b -B -w gcc-4.1-4.1.2-12/debian/changelog gcc-4.1-4.1.2-1=
2+b1/debian/changelog
> --- gcc-4.1-4.1.2-12/debian/changelog=092007-06-13 22:34:38.000000000=
 +0200
> +++ gcc-4.1-4.1.2-12+b1/debian/changelog=092007-06-13 12:44:48.000000=
000 +0200
> @@ -1,3 +1,9 @@
> +gcc-4.1 (4.1.2-12+b1) unstable; urgency=3Dlow
> +
> +  * Revert 20218 patch that breaks gcc
> +
> + -- Sebastien Bernard <seb@frankengul.org>  Wed, 13 Jun 2007 12:44:0=
7 +0200
> +
>  gcc-4.1 (4.1.2-12) unstable; urgency=3Dhigh
> =20
>    * i386-biarch.dpatch: Update for the backport for PR target/31868.=

> diff -r -u -b -B -w gcc-4.1-4.1.2-12/debian/rules.patch gcc-4.1-4.1.2=
-12+b1/debian/rules.patch
> --- gcc-4.1-4.1.2-12/debian/rules.patch=092007-06-13 22:34:38.0000000=
00 +0200
> +++ gcc-4.1-4.1.2-12+b1/debian/rules.patch=092007-06-13 12:45:06.0000=
00000 +0200
> @@ -41,8 +41,6 @@
>  =09fastjar-version \
>  =09fastjar-doc \
>  =09libstdc++-doxygen \
> -=09pr20218 \
> -=09pr20218-mips \
>  =09pr31868 \
>  =09arm-libffi \
>  =09libffi-backport \
> @@ -112,10 +110,6 @@
>    debian_patches +=3D pr25524-doc pr26885-doc gcc-4.1-x86-blended-do=
c libjava-backport-updates2
>  endif
> =20
> -ifneq (,$(filter $(DEB_TARGET_ARCH), amd64 i386 powerpc ppc64 sparc =
s390))
> -  debian_patches +=3D pr20218
> -endif
> -
>  ifeq ($(with_libffi),yes)
>    debian_patches +=3D \
>  =09libffi-configure
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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> Testing 20070630 including the fix for PR rtl-optimization/32296 shows
> many new C++ and libstdc++ regressions.

Most of these were introduced by the dataflow merge (r125624).  I'm
currently working to confirm this.

The C++ and libstdc++ regressions are an EH bug in libgcc.  I tried
debugging this yesterday but didn't find the problem.  I know the
problems in libgcc since the test that I was debugging doesn't fail
with the system libgcc.

We also have problems with building hppa64 and Ada.  So, things are
a mess at the moment...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Matthias Klose a crit :
> The proposed fix seems to be wrong, as it disables the backport on all
> architectures.  Please could you recheck with current trunk? As jda
> suggested, another backport is missing for hppa.
> 
>   Matthias
> 

Oh well, I didn't say I got it all right.

I just said the problem was there.
I submited the bug to the gcc bugtracker and to the debian gcc, but I
didn't submit this patch as a potential fix.
There was no reaction on either site.

If you watch carefuly, this patch is not applied against some archs :
-ifneq (,$(filter $(DEB_TARGET_ARCH), amd64 i386 powerpc ppc64 sparc s390))
-  debian_patches += pr20218
-endif

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> Matthias Klose a crit :
> > The proposed fix seems to be wrong, as it disables the backport on all
> > architectures.  Please could you recheck with current trunk? As jda
> > suggested, another backport is missing for hppa.

Looking at this some more, I don't think there's a missing backport for hppa.

> There was no reaction on either site.

The comment was too vague and will be ignored since you are modifying
the gcc tree.  If a gcc bug is identified, then a new gcc PR is needed.

Looking at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=428509,
I don't see that gcc is doing anything wrong.  Currently, I see the
following with readelf for __librt_multiple_threads in librt-2.5.so
and libc-2.5.so on testing, respectively:

    44: 00000000     4 OBJECT  GLOBAL DEFAULT  UND __librt_multiple_threads@GLIBC_PRIVATE (10)

  1230: 0013e328     4 OBJECT  GLOBAL DEFAULT   32 __librt_multiple_threads@@GLIBC_PRIVATE

The link error suggests that __librt_multiple_threads is hidden in libc-2.5.so.
This will only occur if the symbol is defined with the .hidden attribute.
If that's the case, the link error is expected.  So, either the symbol
shouldn't be hidden or it needs to be defined in librt as well.  This is
a glibc issue.

I should note that pa gcc backend doesn't do anything special wrt
.hidden.  .hidden support is handled completely by the middle-end.
Thus, any problem wrt .hidden in gcc is likely to apply to all targets
that support this attribute.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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John David Anglin a crit :
> Looking at this some more, I don't think there's a missing backport
> for hppa.
> 
>> There was no reaction on either site.
> 
> The comment was too vague and will be ignored since you are modifying
>  the gcc tree.  If a gcc bug is identified, then a new gcc PR is
> needed.

Well, it was a pr on a backport. I though  it was appropriate to add the
problem to the long thread.


> 
> Looking at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=428509, I
> don't see that gcc is doing anything wrong.  Currently, I see the 
> following with readelf for __librt_multiple_threads in librt-2.5.so 
> and libc-2.5.so on testing, respectively:
> 
> 44: 00000000     4 OBJECT  GLOBAL DEFAULT  UND
> __librt_multiple_threads@GLIBC_PRIVATE (10)
> 
> 1230: 0013e328     4 OBJECT  GLOBAL DEFAULT   32
> __librt_multiple_threads@@GLIBC_PRIVATE
> 
> The link error suggests that __librt_multiple_threads is hidden in
> libc-2.5.so. This will only occur if the symbol is defined with the
> .hidden attribute. If that's the case, the link error is expected.
> So, either the symbol shouldn't be hidden or it needs to be defined
> in librt as well.  This is a glibc issue.

Here is the readelf of the broken build :
seb@hpnux:~/glibc-2.5/build-tree/hppa-libc/rt$ readelf -a ./libc.so 
|grep multiple_threads
   1230: 0013e328     4 OBJECT  GLOBAL DEFAULT   32
__librt_multiple_threads@@GLIBC_PRIVATE
   2737: 0013e328     4 OBJECT  LOCAL  HIDDEN   32 __libc_multiple_threads
   3961: 0013e328     4 OBJECT  GLOBAL DEFAULT   32 __librt_multiple_threads

seb@hpnux:~/dev/glibc/glibc-2.5/build-tree/hppa-libc/rt$ readelf -a
librt_pic.a |grep multiple_threads
     18: 00000000     0 NOTYPE  GLOBAL HIDDEN  UND __librt_multiple_threads
      6: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __librt_multiple_threads
      6: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __librt_multiple_threads

I don't see anything wrong. Moreover, the readelf on the correct library 
gives exactly the same result.

To me, the gcc is the bad boy of this story.

I wonder if the gcc sees the first hidden symbol and stop there the
linking with an error without trying to go further the table to see if
another match is possible.
In this case, the problem is in the linker.

Since I don't really know the details, I'm limited to high level 
conjectures.


> 
> I should note that pa gcc backend doesn't do anything special wrt 
> .hidden.  .hidden support is handled completely by the middle-end. 
> Thus, any problem wrt .hidden in gcc is likely to apply to all
> targets that support this attribute.
> 
> Dave

Hum, so this PR is unhiding a bug in the glibc ?

Why then other arch don't seem to be impacted ?

	Seb


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> Here is the readelf of the broken build :
> seb@hpnux:~/glibc-2.5/build-tree/hppa-libc/rt$ readelf -a ./libc.so 
> |grep multiple_threads
>    1230: 0013e328     4 OBJECT  GLOBAL DEFAULT   32
> __librt_multiple_threads@@GLIBC_PRIVATE
>    2737: 0013e328     4 OBJECT  LOCAL  HIDDEN   32 __libc_multiple_threads
>    3961: 0013e328     4 OBJECT  GLOBAL DEFAULT   32 __librt_multiple_threads
> 
> seb@hpnux:~/dev/glibc/glibc-2.5/build-tree/hppa-libc/rt$ readelf -a
> librt_pic.a |grep multiple_threads
>      18: 00000000     0 NOTYPE  GLOBAL HIDDEN  UND __librt_multiple_threads
>       6: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __librt_multiple_threads
>       6: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __librt_multiple_threads
> 
> I don't see anything wrong. Moreover, the readelf on the correct library 
> gives exactly the same result.

The error in bug 428509 is:

...
/home/seb/dev/glibc-2.5/build-tree/hppa-libc/rt/librt_pic.a(mq_timedreceive.os):(.text+0x20): more undefined references to `__librt_multiple_threads' follow
/usr/bin/ld: /home/seb/dev/glibc-2.5/build-tree/hppa-libc/rt/librt.so: hidden symbol `__librt_multiple_threads' isn't defined
/usr/bin/ld: final link failed: Nonrepresentable section on output

Looking at gcc PR 20218, it's clear that there are some very subtle
issues here.  So, it's not clear to me where the problem lies.  It
could be in glibc (hppa sysdep-cancel.h), binutils or gcc.  The handling
of the visibility attribute was broken prior to HJL's change, so it
could have exposed bugs in other packages.

Because of this, it was a mistake for Debian to backport this change.
The change is only in the unreleased gcc trunk.

Since the problem was introduced by a gcc change, I'd start with
a gcc PR and mention the patch that introduced the regression.

Could you do glibc builds with the gcc trunk before and after the change?
It's best to base the PR on an unmodified version of gcc.

It would help to know the exact details of the linker command that
fails, the assembler code generated for mq_timedreceive, and the
__librt_multiple_threads symbols in __librt_multiple_threads librt.so.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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John David Anglin writes:
> > Testing 20070630 including the fix for PR rtl-optimization/32296 shows
> > many new C++ and libstdc++ regressions.
> 
> We also have problems with building hppa64 and Ada.  So, things are
> a mess at the moment...

The hppa64 cross compiler at least did build; Ada is broken on other
archs as well (at least 20070702).
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> The hppa64 cross compiler at least did build;

Since the dataflow merge, the hppa64-hp-hpux11.11 build fails at
the start of stage3.  More info is available in PR middle-end/32398.
The ptr-plus merge also has some affect.  After the pointer plus
merge, there's a small test case in the PR that's miscompiled
with the stage1 compiler.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Tue, 2007-06-26 at 15:55 -0700, Andrew Morton wrote:
> On Wed, 13 Jun 2007 12:03:36 +0200
> Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> 
> > +#ifdef CONFIG_AUDITSYSCALL
> > +	{
> > +		.ctl_name	= CTL_UNNUMBERED,
> > +		.procname	= "audit_argv_kb",
> > +		.data		= &audit_argv_kb,
> > +		.maxlen		= sizeof(int),
> > +		.mode		= 0644,
> > +		.proc_handler	= &proc_dointvec,
> > +	},
> > +#endif
> 
> Please document /proc entries in Documentation/filesystems/proc.txt



Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
 Documentation/filesystems/proc.txt |    7 +++++++
 1 file changed, 7 insertions(+)

Index: linux-2.6/Documentation/filesystems/proc.txt
===================================================================
--- linux-2.6.orig/Documentation/filesystems/proc.txt
+++ linux-2.6/Documentation/filesystems/proc.txt
@@ -1075,6 +1075,13 @@ check the amount of free space (value is
 resume it  if we have a value of 3 or more percent; consider information about
 the amount of free space valid for 30 seconds
 
+audit_argv_kb
+-------------
+
+The file contains a single value denoting the limit on the argv array size
+for execve (in KiB). This limit is only applied when system call auditing for
+execve is enabled, otherwise the value is ignored.
+
 ctrl-alt-del
 ------------
 


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This is a multi-part message in MIME format.
--------------070304040203050209060201
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John David Anglin a crit :
>> Here is the readelf of the broken build :
>> seb@hpnux:~/glibc-2.5/build-tree/hppa-libc/rt$ readelf -a ./libc.so 
>> |grep multiple_threads
>>    1230: 0013e328     4 OBJECT  GLOBAL DEFAULT   32
>> __librt_multiple_threads@@GLIBC_PRIVATE
>>    2737: 0013e328     4 OBJECT  LOCAL  HIDDEN   32 __libc_multiple_threads
>>    3961: 0013e328     4 OBJECT  GLOBAL DEFAULT   32 __librt_multiple_threads
>>
>> seb@hpnux:~/dev/glibc/glibc-2.5/build-tree/hppa-libc/rt$ readelf -a
>> librt_pic.a |grep multiple_threads
>>      18: 00000000     0 NOTYPE  GLOBAL HIDDEN  UND __librt_multiple_threads
>>       6: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __librt_multiple_threads
>>       6: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __librt_multiple_threads
>>
>> I don't see anything wrong. Moreover, the readelf on the correct library 
>> gives exactly the same result.
> 
> The error in bug 428509 is:
> 
> ...
> /home/seb/dev/glibc-2.5/build-tree/hppa-libc/rt/librt_pic.a(mq_timedreceive.os):(.text+0x20): more undefined references to `__librt_multiple_threads' follow
> /usr/bin/ld: /home/seb/dev/glibc-2.5/build-tree/hppa-libc/rt/librt.so: hidden symbol `__librt_multiple_threads' isn't defined
> /usr/bin/ld: final link failed: Nonrepresentable section on output
> 
> Looking at gcc PR 20218, it's clear that there are some very subtle
> issues here.  So, it's not clear to me where the problem lies.  It
> could be in glibc (hppa sysdep-cancel.h), binutils or gcc.  The handling
> of the visibility attribute was broken prior to HJL's change, so it
> could have exposed bugs in other packages.
> 
> Because of this, it was a mistake for Debian to backport this change.
> The change is only in the unreleased gcc trunk.
> 
> Since the problem was introduced by a gcc change, I'd start with
> a gcc PR and mention the patch that introduced the regression.
> 
> Could you do glibc builds with the gcc trunk before and after the change?
> It's best to base the PR on an unmodified version of gcc.
> 
> It would help to know the exact details of the linker command that
> fails, the assembler code generated for mq_timedreceive, and the
> __librt_multiple_threads symbols in __librt_multiple_threads librt.so.
> 
> Dave
Here is the detail of the link command done with gcc-4.1-4.1.2-13.

It's not clear want do you want exactly.

I join the result of :
   objdump -d mq_timedreceive.os
   readelf -a libc-cancellation.os
   readelf -a mq_timedreceive.os

Hope this is what you're asking for.

Seb


--------------070304040203050209060201
Content-Type: text/plain;
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mq_timedreceive.os:     file format elf32-hppa-linux

Disassembly of section .text:

00000000 <__GI_mq_timedreceive>:
   0:	6b c2 3f d9 	stw rp,-14(sp)
   4:	4b d6 3f 99 	ldw -34(sp),r22
   8:	08 03 02 41 	copy r3,r1
   c:	08 1e 02 43 	copy sp,r3
  10:	6f c1 00 80 	stw,ma r1,40(sp)
  14:	6b c2 3f d9 	stw rp,-14(sp)
  18:	0f c3 12 99 	stw r3,-4(sp)
  1c:	2a 60 00 00 	addil L%0,r19,r1
  20:	48 3c 00 00 	ldw 0(r1),ret0
  24:	0f 80 10 9c 	ldw 0(ret0),ret0
  28:	8f 80 20 5a 	cmpib,<>,n 0,ret0,5c <__GI_mq_timedreceive+0x5c>
  2c:	08 13 02 43 	copy r19,r3
  30:	e4 00 82 00 	be,l 100(sr2,r0),sr0,r31
  34:	34 14 01 d0 	ldi e8,r20
  38:	34 01 20 01 	ldi -1000,r1
  3c:	8b 81 81 12 	cmpb,>>=,n r1,ret0,cc <__GI_mq_timedreceive+0xcc>
  40:	08 03 02 53 	copy r3,r19
  44:	e8 40 00 00 	b,l 4c <__GI_mq_timedreceive+0x4c>,rp
  48:	08 1c 02 43 	copy ret0,r3
  4c:	08 60 04 03 	sub r0,r3,r3
  50:	0f 83 12 80 	stw r3,0(ret0)
  54:	e8 00 00 e0 	b,l cc <__GI_mq_timedreceive+0xcc>,r0
  58:	34 1c 3f ff 	ldi -1,ret0
  5c:	6b da 3f b9 	stw r26,-24(sp)
  60:	6b d9 3f b1 	stw r25,-28(sp)
  64:	6b d8 3f a9 	stw r24,-2c(sp)
  68:	6b d7 3f a1 	stw r23,-30(sp)
  6c:	6b d6 3f 99 	stw r22,-34(sp)
  70:	e8 40 00 00 	b,l 78 <__GI_mq_timedreceive+0x78>,rp
  74:	08 13 02 43 	copy r19,r3
  78:	4b da 3f b9 	ldw -24(sp),r26
  7c:	4b d9 3f b1 	ldw -28(sp),r25
  80:	4b d8 3f a9 	ldw -2c(sp),r24
  84:	4b d7 3f a1 	ldw -30(sp),r23
  88:	4b d6 3f 99 	ldw -34(sp),r22
  8c:	6b dc 3f d1 	stw ret0,-18(sp)
  90:	e4 00 82 00 	be,l 100(sr2,r0),sr0,r31
  94:	34 14 01 d0 	ldi e8,r20
  98:	08 03 02 53 	copy r3,r19
  9c:	4b da 3f d1 	ldw -18(sp),r26
  a0:	e8 40 00 00 	b,l a8 <__GI_mq_timedreceive+0xa8>,rp
  a4:	6b dc 3f d1 	stw ret0,-18(sp)
  a8:	4b dc 3f d1 	ldw -18(sp),ret0
  ac:	34 01 20 01 	ldi -1000,r1
  b0:	8b 81 80 2a 	cmpb,>>=,n r1,ret0,cc <__GI_mq_timedreceive+0xcc>
  b4:	08 03 02 53 	copy r3,r19
  b8:	08 1c 02 43 	copy ret0,r3
  bc:	e8 40 00 00 	b,l c4 <__GI_mq_timedreceive+0xc4>,rp
  c0:	08 60 04 03 	sub r0,r3,r3
  c4:	0f 83 12 80 	stw r3,0(ret0)
  c8:	34 1c 3f ff 	ldi -1,ret0
  cc:	4b c2 3f 59 	ldw -54(sp),rp
  d0:	4f c3 3f 81 	ldw,mb -40(sp),r3
  d4:	e8 40 c0 02 	bv,n r0(rp)

--------------070304040203050209060201
Content-Type: text/plain;
 name="dump.readelf_libc-cancel"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="dump.readelf_libc-cancel"

ELF Header:
  Magic:   7f 45 4c 46 01 02 01 03 00 00 00 00 00 00 00 00 
  Class:                             ELF32
  Data:                              2's complement, big endian
  Version:                           1 (current)
  OS/ABI:                            UNIX - Linux
  ABI Version:                       0
  Type:                              REL (Relocatable file)
  Machine:                           HPPA
  Version:                           0x1
  Entry point address:               0x0
  Start of program headers:          0 (bytes into file)
  Start of section headers:          18152 (bytes into file)
  Flags:                             0x210, PA-RISC 1.1
  Size of this header:               52 (bytes)
  Size of program headers:           0 (bytes)
  Number of program headers:         0
  Size of section headers:           40 (bytes)
  Number of section headers:         25
  Section header string table index: 22

Section Headers:
  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
  [ 1] .text             PROGBITS        00000000 000034 000080 00  AX  0   0  4
  [ 2] .rela.text        RELA            00000000 004dac 000024 0c     23   1  4
  [ 3] .data             PROGBITS        00000000 0000b4 000000 00  WA  0   0  1
  [ 4] .bss              NOBITS          00000000 0000b4 000004 00  WA  0   0  4
  [ 5] .note             NOTE            00000000 0000b4 000014 00      0   0  1
  [ 6] .debug_abbrev     PROGBITS        00000000 0000c8 000254 00      0   0  1
  [ 7] .debug_info       PROGBITS        00000000 00031c 00242d 00      0   0  1
  [ 8] .rela.debug_info  RELA            00000000 004dd0 0018fc 0c     23   7  4
  [ 9] .debug_line       PROGBITS        00000000 002749 000402 00      0   0  1
  [10] .rela.debug_line  RELA            00000000 0066cc 00000c 0c     23   9  4
  [11] .PARISC.unwind    PROGBITS        00000000 002b4c 000020 04   A  0   1  4
  [12] .rela.PARISC.unwi RELA            00000000 0066d8 000030 0c     23  11  4
  [13] .debug_frame      PROGBITS        00000000 002b6c 00003c 00      0   0  4
  [14] .rela.debug_frame RELA            00000000 006708 000030 0c     23  13  4
  [15] .debug_loc        PROGBITS        00000000 002ba8 000045 00      0   0  1
  [16] .debug_pubnames   PROGBITS        00000000 002bed 0000ac 00      0   0  1
  [17] .rela.debug_pubna RELA            00000000 006738 00000c 0c     23  16  4
  [18] .debug_aranges    PROGBITS        00000000 002c99 000020 00      0   0  1
  [19] .rela.debug_arang RELA            00000000 006744 000018 0c     23  18  4
  [20] .debug_str        PROGBITS        00000000 002cb9 00191e 01  MS  0   0  1
  [21] .comment          PROGBITS        00000000 0045d7 00003a 00      0   0  1
  [22] .shstrtab         STRTAB          00000000 004611 0000d5 00      0   0  1
  [23] .symtab           SYMTAB          00000000 004ad0 0001c0 10     24  15  4
  [24] .strtab           STRTAB          00000000 004c90 000119 00      0   0  1
Key to Flags:
  W (write), A (alloc), X (execute), M (merge), S (strings)
  I (info), L (link order), G (group), x (unknown)
  O (extra OS processing required) o (OS specific), p (processor specific)

There are no section groups in this file.

There are no program headers in this file.

Relocation section '.rela.text' at offset 0x4dac contains 3 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
0000004c  00001422 R_PARISC_DLTIND21 00000000   __libc_pthread_functio + 0
00000054  00001426 R_PARISC_DLTIND14 00000000   __libc_pthread_functio + 0
00000064  0000150c R_PARISC_PCREL17F 00000000   $$dyncall + 0

Relocation section '.rela.debug_info' at offset 0x4dd0 contains 533 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
00000006  00000401 R_PARISC_DIR32    00000000   .debug_abbrev + 0
0000000c  00000601 R_PARISC_DIR32    00000000   .debug_line + 0
00000010  00000101 R_PARISC_DIR32    00000000   .text + 80
00000014  00000101 R_PARISC_DIR32    00000000   .text + 0
00000018  00000b01 R_PARISC_DIR32    00000000   .debug_str + 1814
0000001d  00000b01 R_PARISC_DIR32    00000000   .debug_str + 755
00000021  00000b01 R_PARISC_DIR32    00000000   .debug_str + 7bb
0000002d  00000b01 R_PARISC_DIR32    00000000   .debug_str + 82f
00000038  00000b01 R_PARISC_DIR32    00000000   .debug_str + 1859
0000003f  00000b01 R_PARISC_DIR32    00000000   .debug_str + 1579
0000004a  00000b01 R_PARISC_DIR32    00000000   .debug_str + 5d7
00000051  00000b01 R_PARISC_DIR32    00000000   .debug_str + 67c
0000005c  00000b01 R_PARISC_DIR32    00000000   .debug_str + ca1
00000063  00000b01 R_PARISC_DIR32    00000000   .debug_str + 25d
0000006e  00000b01 R_PARISC_DIR32    00000000   .debug_str + eb8
00000079  00000b01 R_PARISC_DIR32    00000000   .debug_str + ffc
00000080  00000b01 R_PARISC_DIR32    00000000   .debug_str + cca
00000087  00000b01 R_PARISC_DIR32    00000000   .debug_str + 188e
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000000a7  00000b01 R_PARISC_DIR32    00000000   .debug_str + 45a
000000b2  00000b01 R_PARISC_DIR32    00000000   .debug_str + 1c3
000000bd  00000b01 R_PARISC_DIR32    00000000   .debug_str + ec1
000000c4  00000b01 R_PARISC_DIR32    00000000   .debug_str + d57
000000cf  00000b01 R_PARISC_DIR32    00000000   .debug_str + 2e6
000000da  00000b01 R_PARISC_DIR32    00000000   .debug_str + 1859
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00002371  00000b01 R_PARISC_DIR32    00000000   .debug_str + 14
0000237e  00001701 R_PARISC_DIR32    00000004   __thread_self + 0
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00002416  00001801 R_PARISC_DIR32    00000000   __libc_multiple_thread + 0
0000241b  00000b01 R_PARISC_DIR32    00000000   .debug_str + 1aa
00002428  00001901 R_PARISC_DIR32    00000000   __librt_multiple_threa + 0

Relocation section '.rela.debug_line' at offset 0x66cc contains 1 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
000003dc  00000101 R_PARISC_DIR32    00000000   .text + 0

Relocation section '.rela.PARISC.unwind' at offset 0x66d8 contains 4 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
00000000  00001331 R_PARISC_SEGREL32 00000000   __libc_enable_asynccan + 0
00000004  00000131 R_PARISC_SEGREL32 00000000   .text + 70
00000010  00001631 R_PARISC_SEGREL32 00000074   __libc_disable_asyncca + 0
00000014  00000131 R_PARISC_SEGREL32 00000000   .text + 7c

Relocation section '.rela.debug_frame' at offset 0x6708 contains 4 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
00000014  00000701 R_PARISC_DIR32    00000000   .debug_frame + 0
00000018  00000101 R_PARISC_DIR32    00000000   .text + 0
00000030  00000701 R_PARISC_DIR32    00000000   .debug_frame + 0
00000034  00000101 R_PARISC_DIR32    00000000   .text + 74

Relocation section '.rela.debug_pubnames' at offset 0x6738 contains 1 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
00000006  00000501 R_PARISC_DIR32    00000000   .debug_info + 0

Relocation section '.rela.debug_aranges' at offset 0x6744 contains 2 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
00000006  00000501 R_PARISC_DIR32    00000000   .debug_info + 0
00000010  00000101 R_PARISC_DIR32    00000000   .text + 0

Unwind section '.PARISC.unwind' at offset 0x2b4c contains 2 entries:

<__libc_enable_asynccancel>: [0x0-0xe0]
	Entry_GR=2 Save_RP Total_frame_size=8 
<__libc_disable_asynccancel>: [0x74-0xf8]
	

Symbol table '.symtab' contains 28 entries:
   Num:    Value  Size Type    Bind   Vis      Ndx Name
     0: 00000000     0 NOTYPE  LOCAL  DEFAULT  UND 
     1: 00000000     0 SECTION LOCAL  DEFAULT    1 
     2: 00000000     0 SECTION LOCAL  DEFAULT    3 
     3: 00000000     0 SECTION LOCAL  DEFAULT    4 
     4: 00000000     0 SECTION LOCAL  DEFAULT    6 
     5: 00000000     0 SECTION LOCAL  DEFAULT    7 
     6: 00000000     0 SECTION LOCAL  DEFAULT    9 
     7: 00000000     0 SECTION LOCAL  DEFAULT   13 
     8: 00000000     0 SECTION LOCAL  DEFAULT   15 
     9: 00000000     0 SECTION LOCAL  DEFAULT   16 
    10: 00000000     0 SECTION LOCAL  DEFAULT   18 
    11: 00000000     0 SECTION LOCAL  DEFAULT   20 
    12: 00000000     0 SECTION LOCAL  DEFAULT    5 
    13: 00000000     0 SECTION LOCAL  DEFAULT   11 
    14: 00000000     0 SECTION LOCAL  DEFAULT   21 
    15: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __divdi3_internal
    16: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __udivdi3_internal
    17: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __moddi3_internal
    18: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __umoddi3_internal
    19: 00000000   116 FUNC    GLOBAL HIDDEN    1 __libc_enable_asynccancel
    20: 00000000     0 NOTYPE  GLOBAL HIDDEN  UND __libc_pthread_functions
    21: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND $$dyncall
    22: 00000074    12 FUNC    GLOBAL HIDDEN    1 __libc_disable_asynccance
    23: 00000004     4 OBJECT  GLOBAL DEFAULT  COM __thread_self
    24: 00000000     4 OBJECT  GLOBAL HIDDEN    4 __libc_multiple_threads
    25: 00000000     4 OBJECT  GLOBAL DEFAULT    4 __librt_multiple_threads
    26: 00000000   116 FUNC    GLOBAL DEFAULT    1 __librt_enable_asynccance
    27: 00000074    12 FUNC    GLOBAL DEFAULT    1 __librt_disable_asynccanc

No version information found in this file.

Notes at offset 0x000000b4 with length 0x00000014:
  Owner		Data size	Description
  01.01		0x00000000	NT_VERSION (version)

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Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="dump.readelf_timedreceive"

ELF Header:
  Magic:   7f 45 4c 46 01 02 01 03 00 00 00 00 00 00 00 00 
  Class:                             ELF32
  Data:                              2's complement, big endian
  Version:                           1 (current)
  OS/ABI:                            UNIX - Linux
  ABI Version:                       0
  Type:                              REL (Relocatable file)
  Machine:                           HPPA
  Version:                           0x1
  Entry point address:               0x0
  Start of program headers:          0 (bytes into file)
  Start of section headers:          356 (bytes into file)
  Flags:                             0x20b, PA-RISC 1.0
  Size of this header:               52 (bytes)
  Size of program headers:           0 (bytes)
  Number of program headers:         0
  Size of section headers:           40 (bytes)
  Number of section headers:         10
  Section header string table index: 7

Section Headers:
  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
  [ 1] .text             PROGBITS        00000000 000034 0000d8 00  AX  0   0  4
  [ 2] .rela.text        RELA            00000000 00042c 000048 0c      8   1  4
  [ 3] .data             PROGBITS        00000000 00010c 000000 00  WA  0   0  1
  [ 4] .bss              NOBITS          00000000 00010c 000000 00  WA  0   0  1
  [ 5] .PARISC.unwind    PROGBITS        00000000 00010c 000010 04   A  0   1  4
  [ 6] .rela.PARISC.unwi RELA            00000000 000474 000018 0c      8   5  4
  [ 7] .shstrtab         STRTAB          00000000 00011c 000045 00      0   0  1
  [ 8] .symtab           SYMTAB          00000000 0002f4 0000b0 10      9   5  4
  [ 9] .strtab           STRTAB          00000000 0003a4 000087 00      0   0  1
Key to Flags:
  W (write), A (alloc), X (execute), M (merge), S (strings)
  I (info), L (link order), G (group), x (unknown)
  O (extra OS processing required) o (OS specific), p (processor specific)

There are no section groups in this file.

There are no program headers in this file.

Relocation section '.rela.text' at offset 0x42c contains 6 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
0000001c  00000622 R_PARISC_DLTIND21 00000000   __librt_multiple_threa + 0
00000020  00000626 R_PARISC_DLTIND14 00000000   __librt_multiple_threa + 0
00000044  0000070c R_PARISC_PCREL17F 00000000   __errno_location + 0
00000070  0000080c R_PARISC_PCREL17F 00000000   __librt_enable_asyncca + 0
000000a0  0000090c R_PARISC_PCREL17F 00000000   __librt_disable_asyncc + 0
000000bc  0000070c R_PARISC_PCREL17F 00000000   __errno_location + 0

Relocation section '.rela.PARISC.unwind' at offset 0x474 contains 2 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
00000000  00000531 R_PARISC_SEGREL32 00000000   __GI_mq_timedreceive + 0
00000004  00000131 R_PARISC_SEGREL32 00000000   .text + d4

Unwind section '.PARISC.unwind' at offset 0x10c contains 1 entries:

<__GI_mq_timedreceive>: [0x0-0x1a8]
	Entry_GR=1 Save_RP Total_frame_size=8 

Symbol table '.symtab' contains 11 entries:
   Num:    Value  Size Type    Bind   Vis      Ndx Name
     0: 00000000     0 NOTYPE  LOCAL  DEFAULT  UND 
     1: 00000000     0 SECTION LOCAL  DEFAULT    1 
     2: 00000000     0 SECTION LOCAL  DEFAULT    3 
     3: 00000000     0 SECTION LOCAL  DEFAULT    4 
     4: 00000000     0 SECTION LOCAL  DEFAULT    5 
     5: 00000000   216 FUNC    GLOBAL DEFAULT    1 __GI_mq_timedreceive
     6: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __librt_multiple_threads
     7: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __errno_location
     8: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __librt_enable_asynccance
     9: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __librt_disable_asynccanc
    10: 00000000   216 FUNC    WEAK   DEFAULT    1 mq_timedreceive

No version information found in this file.

--------------070304040203050209060201
Content-Type: text/plain;
 name="log.link"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline;
 filename="log.link"

+ gcc-4.1 -v -shared -static-libgcc -Wl,-O1 -Wl,-z,defs -Wl,-dynamic-link=
er=3D/lib/ld.so.1 -B/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/cs=
u/ -Wl,--version-script=3D/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-l=
ibc/librt.map -Wl,-soname=3Dlibrt.so.1 -Wl,-z,combreloc -Wl,--hash-style=3D=
both -Wl,--enable-new-dtags,-z,nodelete -L/home/seb/dev/glibc/glibc-2.5/b=
uild-tree/hppa-libc -L/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/=
math -L/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/elf -L/home/seb=
/dev/glibc/glibc-2.5/build-tree/hppa-libc/dlfcn -L/home/seb/dev/glibc/gli=
bc-2.5/build-tree/hppa-libc/nss -L/home/seb/dev/glibc/glibc-2.5/build-tre=
e/hppa-libc/nis -L/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/rt -=
L/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/resolv -L/home/seb/de=
v/glibc/glibc-2.5/build-tree/hppa-libc/crypt -L/home/seb/dev/glibc/glibc-=
2.5/build-tree/hppa-libc/linuxthreads -Wl,-rpath-link=3D/home/seb/dev/gli=
bc/glibc-2.5/build-tree/hppa-libc:/home/seb/dev/glibc/glibc-2.5/build-tre=
e/hppa-libc/math:/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/elf:/=
home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/dlfcn:/home/seb/dev/gli=
bc/glibc-2.5/build-tree/hppa-libc/nss:/home/seb/dev/glibc/glibc-2.5/build=
-tree/hppa-libc/nis:/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/rt=
:/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/resolv:/home/seb/dev/=
glibc/glibc-2.5/build-tree/hppa-libc/crypt:/home/seb/dev/glibc/glibc-2.5/=
build-tree/hppa-libc/linuxthreads -o /home/seb/dev/glibc/glibc-2.5/build-=
tree/hppa-libc/rt/librt.so -T /home/seb/dev/glibc/glibc-2.5/build-tree/hp=
pa-libc/shlib.lds /home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/csu/=
abi-note.o -Wl,--whole-archive /home/seb/dev/glibc/glibc-2.5/build-tree/h=
ppa-libc/rt/librt_pic.a -Wl,--no-whole-archive /home/seb/dev/glibc/glibc-=
2.5/build-tree/hppa-libc/elf/interp.os /home/seb/dev/glibc/glibc-2.5/buil=
d-tree/hppa-libc/libc.so /home/seb/dev/glibc/glibc-2.5/build-tree/hppa-li=
bc/libc_nonshared.a /home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/li=
nuxthreads/libpthread_nonshared.a /home/seb/dev/glibc/glibc-2.5/build-tre=
e/hppa-libc/linuxthreads/libpthread.so /home/seb/dev/glibc/glibc-2.5/buil=
d-tree/hppa-libc/elf/ld.so
Using built-in specs.
Target: hppa-linux-gnu
Configured with: ../src/configure -v --enable-languages=3Dc,c++,fortran,o=
bjc,obj-c++,treelang --prefix=3D/usr --enable-shared --with-system-zlib -=
-libexecdir=3D/usr/lib --without-included-gettext --enable-threads=3Dposi=
x --enable-nls --with-gxx-include-dir=3D/usr/include/c++/4.1.3 --program-=
suffix=3D-4.1 --enable-__cxa_atexit --enable-clocale=3Dgnu --enable-libst=
dcxx-debug --enable-mpfr --disable-libssp --enable-checking=3Drelease hpp=
a-linux-gnu
Thread model: posix
gcc version 4.1.3 20070629 (prerelease) (Debian 4.1.2-13)
 /usr/lib/gcc/hppa-linux-gnu/4.1.3/collect2 --eh-frame-hdr --hash-style=3D=
both -shared -o /home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/rt/lib=
rt.so /home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/csu/crti.o /usr/=
lib/gcc/hppa-linux-gnu/4.1.3/crtbeginS.o -L/home/seb/dev/glibc/glibc-2.5/=
build-tree/hppa-libc -L/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc=
/math -L/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/elf -L/home/se=
b/dev/glibc/glibc-2.5/build-tree/hppa-libc/dlfcn -L/home/seb/dev/glibc/gl=
ibc-2.5/build-tree/hppa-libc/nss -L/home/seb/dev/glibc/glibc-2.5/build-tr=
ee/hppa-libc/nis -L/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/rt =
-L/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/resolv -L/home/seb/d=
ev/glibc/glibc-2.5/build-tree/hppa-libc/crypt -L/home/seb/dev/glibc/glibc=
-2.5/build-tree/hppa-libc/linuxthreads -L/home/seb/dev/glibc/glibc-2.5/bu=
ild-tree/hppa-libc/csu -L/usr/lib/gcc/hppa-linux-gnu/4.1.3 -L/usr/lib/gcc=
/hppa-linux-gnu/4.1.3 -L/usr/lib/gcc/hppa-linux-gnu/4.1.3/../../.. -O1 -z=
 defs -dynamic-linker=3D/lib/ld.so.1 --version-script=3D/home/seb/dev/gli=
bc/glibc-2.5/build-tree/hppa-libc/librt.map -soname=3Dlibrt.so.1 -z combr=
eloc --hash-style=3Dboth --enable-new-dtags -z nodelete -rpath-link=3D/ho=
me/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc:/home/seb/dev/glibc/glibc=
-2.5/build-tree/hppa-libc/math:/home/seb/dev/glibc/glibc-2.5/build-tree/h=
ppa-libc/elf:/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/dlfcn:/ho=
me/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/nss:/home/seb/dev/glibc/g=
libc-2.5/build-tree/hppa-libc/nis:/home/seb/dev/glibc/glibc-2.5/build-tre=
e/hppa-libc/rt:/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/resolv:=
/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/crypt:/home/seb/dev/gl=
ibc/glibc-2.5/build-tree/hppa-libc/linuxthreads /home/seb/dev/glibc/glibc=
-2.5/build-tree/hppa-libc/csu/abi-note.o --whole-archive /home/seb/dev/gl=
ibc/glibc-2.5/build-tree/hppa-libc/rt/librt_pic.a --no-whole-archive /hom=
e/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/elf/interp.os /home/seb/de=
v/glibc/glibc-2.5/build-tree/hppa-libc/libc.so /home/seb/dev/glibc/glibc-=
2.5/build-tree/hppa-libc/libc_nonshared.a /home/seb/dev/glibc/glibc-2.5/b=
uild-tree/hppa-libc/linuxthreads/libpthread_nonshared.a /home/seb/dev/gli=
bc/glibc-2.5/build-tree/hppa-libc/linuxthreads/libpthread.so /home/seb/de=
v/glibc/glibc-2.5/build-tree/hppa-libc/elf/ld.so -lgcc -lgcc_eh -lgcc -lc=
 -lgcc -lgcc_eh /usr/lib/gcc/hppa-linux-gnu/4.1.3/crtendS.o /home/seb/dev=
/glibc/glibc-2.5/build-tree/hppa-libc/csu/crtn.o -T /home/seb/dev/glibc/g=
libc-2.5/build-tree/hppa-libc/shlib.lds
/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/rt/librt_pic.a(clock_n=
anosleep.os): In function `clock_nanosleep':
/home/seb/dev/glibc/glibc-2.5/build-tree/glibc-2.5/rt/../sysdeps/unix/sys=
v/linux/clock_nanosleep.c:42: undefined reference to `__librt_multiple_th=
reads'
/home/seb/dev/glibc/glibc-2.5/build-tree/glibc-2.5/rt/../sysdeps/unix/sys=
v/linux/clock_nanosleep.c:42: undefined reference to `__librt_multiple_th=
reads'
/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/rt/librt_pic.a(mq_time=
dsend.os): In function `mq_timedsend':
(.text+0x1c): undefined reference to `__librt_multiple_threads'
/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/rt/librt_pic.a(mq_time=
dsend.os): In function `mq_timedsend':
(.text+0x20): undefined reference to `__librt_multiple_threads'
/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/rt/librt_pic.a(mq_time=
dreceive.os): In function `mq_timedreceive':
(.text+0x1c): undefined reference to `__librt_multiple_threads'
/home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/rt/librt_pic.a(mq_time=
dreceive.os):(.text+0x20): more undefined references to `__librt_multiple=
_threads' follow
/usr/bin/ld: /home/seb/dev/glibc/glibc-2.5/build-tree/hppa-libc/rt/librt.=
so: hidden symbol `__librt_multiple_threads' isn't defined
/usr/bin/ld: final link failed: Nonrepresentable section on output
collect2: ld returned 1 exit status

--------------070304040203050209060201
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--------------070304040203050209060201--



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Xref: news.gmane.org gmane.linux.ports.parisc:24701

http://ftp.kernel.org/pub/linux/kernel/people/kyle/parisc/2.6.22-rc6/v2.6.22-rc6-pa1.diff.bz2

added:
+parisc/add-empty-asm-parisc-vga-h.patch
+parisc/add-dummy-isa_foo_to_bar.patch
+parisc/clean-up-sti_flush.patch
+parisc/do-not-allow-STI_CONSOLE-to-be-modular.patch

merged:
-parisc/led-lcd-no-space-removal.patch
-parisc/mmap-handle-expand_upwards-wrap.patch
-parisc/fix-64bit-unwinding.patch
-parisc/unwinder-improvements.patch
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John David Anglin a crit :
>> On the other hand, the LinuxThreads build on other architectures are
>> still fine even with the latest gcc in Debian.
> 
> Is the __librt_multiple_threads symbol defined, undefined or not
> used in librt.so?
> 

On both hppa and m68k I get:
00000000      DO *UND*  00000004  GLIBC_PRIVATE __librt_multiple_threads

On hurd-i386, kfreebsd-i386 and kfreebsd-amd64, __librt_multiple_threads
is not present in librt.so

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
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   `-    people.debian.org/~aurel32 | www.aurel32.net


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> >> On the other hand, the LinuxThreads build on other architectures are
> >> still fine even with the latest gcc in Debian.
> > 
> > Is the __librt_multiple_threads symbol defined, undefined or not
> > used in librt.so?
> > 
> 
> On both hppa and m68k I get:
> 00000000      DO *UND*  00000004  GLIBC_PRIVATE __librt_multiple_threads

So, it would seem m68k is also broken if the definition
in libc-2.5.so is hidden.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [parisc-linux] [palo patch] Implement CTRL-U functionality
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On Fri, Jul 06, 2007 at 04:44:05PM -0700, Randolph Chung wrote:
> I keep on meaning to do this, and have finally done it.....
> 
> The attached patch makes the palo "editor" understand CTRL-U, so that 
> you can quickly clear out a particular command line parameter.
> 
> Any comments? If not I will commit this in a few days, and hope that the 
> Debian/Ubuntu/Gentoo folks eventually pick it up :)
> 

ACK.

Will upload to Debian after you commit it. (Or, I suppose, you could
upload to Debian and add yourself to Uploaders if you wanted.)

Cheers,
	Kyle
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On 12/07/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> On 7/10/07, James Bottomley <James.Bottomley@steeleye.com> wrote:
> > On Tue, 2007-07-10 at 09:01 -0400, Jeff Bailey wrote:
> > > Heya!  I'm running 2.6.22-rc7 from Linus' tree, and I occasionally get
> > > the system dying like this.  I'm mostly surprised by the complete lack
> > > of information in the crash, is there anything I can do to ask it to
> > > give more when it dies?
> >
> > A register dump with IAOQ and %r2 decoded to the kernel addresses might
> > (or might not) be helpful.  Given that the interrupt seems to be
> > advisory (not a machine check) you might have to TOC the box to get
> > this.  Although, unfortunately, I've seen this several times as the
> > symptom of A500 flakey HW.
>
> Right, I saw this failure just before the main board on my A500 died.

Thanks.  I'll try Grant's test, but I'll get my data off that box.
*pout*  Anyway of adding a GSP to a J6700?  I've been using the a500
to make remote rebooting not suck.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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--CUfgB8w4ZwR/yMy5
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Jeff mentioned recently that with a NPTL-enabled glibc, gdb debugging of
any threaded app fails. For example:

(gdb) run
Starting program: /home/tausq/userspace/thread_test2
[Thread debugging using libthread_db enabled]
Error while reading shared library symbols:
find_new_threads_callback: cannot get thread info: generic error

Two fixes, one in glibc and one in gdb, are required to fix this. The
attached patch is the glibc portion.

2007-07-12  Randolph Chung  <tausq@debian.org>

	* sysdeps/hppa/nptl/tls.h (DB_THREAD_SELF): Fix definition.

Please apply if ok.

randolph

--CUfgB8w4ZwR/yMy5
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="local-threaddb.diff"

Fix the register offset for libthread_db to do THREAD_SELF properly.

--- ports/sysdeps/hppa/nptl/tls.h.orig	2007-07-11 22:57:36.000000000 +0000
+++ ports/sysdeps/hppa/nptl/tls.h	2007-07-11 22:57:50.000000000 +0000
@@ -117,10 +117,11 @@
    	__self - 1;				\
    })
 
-/* FIXME */
-/* Magic for libthread_db to know how to do THREAD_SELF.  */
+/* Magic for libthread_db to know how to do THREAD_SELF.
+   Our thread pointer is stored in cr27.  See asm/elf.h for the offset into
+   elf_gregset_t.  The thread descriptor is sizeof (struct pthread) away.  */
 # define DB_THREAD_SELF \
-  REGISTER (32, 32, 32 * 4, -sizeof (struct pthread))
+  REGISTER (32, 32, 53 * 4, -sizeof (struct pthread))
 
 /* Access to data in the thread descriptor is easy.  */
 # define THREAD_GETMEM(descr, member) \

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--CUfgB8w4ZwR/yMy5--



From - Thu Nov 08 21:36:07 2018
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Subject: Re: [parisc-linux] glibc is broken because of gcc
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Jeff Bailey a écrit :
> On 05/07/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
>>>> Could you do glibc builds with the gcc trunk before and after the change?
>>>> It's best to base the PR on an unmodified version of gcc.
>>> The test with the gcc-trunk (Main 4.3.0 head) shows the same error at the same place.
>> Ok, it would be useful to file a gcc PR to start.  However, it's not
>> clear that gcc is a fault.
>>
>> It may be that glibc isn't using the visibility attribute correctly
>> for this symbol (i.e., hiding a symbol that is externally referenced).
>> You could try building glibc with the attribute removed.  This might
>> be somewhat hppa specific because of the nptl issue.
> 
> As long as LinuxThreads isn't built, this problem doesn't come up.  It
> seems very likely that it's a glibc problem, then.  The Ubuntu builds
> are NPTL-only and don't show this problem.

NPTL does not use this symbol at all, that's why the problem does not
appear.

-- 
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John David Anglin a crit :
>>>> On the other hand, the LinuxThreads build on other architectures are
>>>> still fine even with the latest gcc in Debian.
>>> Is the __librt_multiple_threads symbol defined, undefined or not
>>> used in librt.so?
>>>
>> On both hppa and m68k I get:
>> 00000000      DO *UND*  00000004  GLIBC_PRIVATE __librt_multiple_threads
> 
> So, it would seem m68k is also broken if the definition
> in libc-2.5.so is hidden.

Well it is not hidden on m68k and also not on hppa. The symbol is
defined the same way on both architectures in libc.so:

0013e328 g    DO .bss   00000004  GLIBC_PRIVATE __librt_multiple_threads



-- 
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On Thu, Jul 05, 2007 at 11:18:05AM -0400, John David Anglin wrote:
> > > Could you do glibc builds with the gcc trunk before and after the change?
> > > It's best to base the PR on an unmodified version of gcc.
> > 
> > The test with the gcc-trunk (Main 4.3.0 head) shows the same error at the same place.
> 
> Ok, it would be useful to file a gcc PR to start.  However, it's not
> clear that gcc is a fault.
> 
> It may be that glibc isn't using the visibility attribute correctly
> for this symbol (i.e., hiding a symbol that is externally referenced).


The patch below based on the m68k version of sysdep-cancel.h fixes the
problem.


2007-07-10  Aurelien Jarno  <aurelien@aurel32.net>

	* sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cancel.h:
	(__local_multiple_threads): Declare as hidden only in libc and
	in libpthread.

Index: ports/sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cancel.h 
===================================================================
--- ports/sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cancel.h.orig
+++ ports/sysdeps/unix/sysv/linux/hppa/linuxthreads/sysdep-cancel.h
@@ -206,7 +206,11 @@
 # endif
 
 # ifndef __ASSEMBLER__
- extern int __local_multiple_threads attribute_hidden;
+#  if !defined NOT_IN_libc || defined IS_IN_libpthread
+extern int __local_multiple_threads attribute_hidden;
+#  else
+extern int __local_multiple_threads;
+#  endif
 #  define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
 # else
 /* This ALT version requires newer kernel support */

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net


-- 
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Xref: news.gmane.org gmane.linux.ports.parisc:24710

Heya!  I'm running 2.6.22-rc7 from Linus' tree, and I occasionally get
the system dying like this.  I'm mostly surprised by the complete lack
of information in the crash, is there anything I can do to ask it to
give more when it dies?

 * INIT: version 2.86 reloading

************* SYSTEM ALERT **************
SYSTEM NAME: a500-gsp
DATE: 07/10/2007 TIME: 07:23:03
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system down.
Check Chassis and Console Logs for error messages.

0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
0x5800087000FF6292 00006B06 0A071703 - type 11 = Timestamp 07/10/2007 07:23:03
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:Timeout!
*****************************************


-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
_______________________________________________
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On Tue, 2007-07-10 at 09:01 -0400, Jeff Bailey wrote:
> Heya!  I'm running 2.6.22-rc7 from Linus' tree, and I occasionally get
> the system dying like this.  I'm mostly surprised by the complete lack
> of information in the crash, is there anything I can do to ask it to
> give more when it dies?

A register dump with IAOQ and %r2 decoded to the kernel addresses might
(or might not) be helpful.  Given that the interrupt seems to be
advisory (not a machine check) you might have to TOC the box to get
this.  Although, unfortunately, I've seen this several times as the
symptom of A500 flakey HW.

James


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Subject: Re: [parisc-linux] Crashed on 2.6.22-rc7, Linus' tree
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Xref: news.gmane.org gmane.linux.ports.parisc:24712

On Tue, Jul 10, 2007 at 09:01:02AM -0400, Jeff Bailey wrote:
> Heya!  I'm running 2.6.22-rc7 from Linus' tree, and I occasionally get
> the system dying like this.  I'm mostly surprised by the complete lack
> of information in the crash, is there anything I can do to ask it to
> give more when it dies?
>
> * INIT: version 2.86 reloading
>
> ************* SYSTEM ALERT **************

The Virtual Front Panel (VFP) is obscuring any kernel output.
You can get kernel output (if there is any) by looking at the
console log recorded by the GSP (aka MP).

> SYSTEM NAME: a500-gsp
> DATE: 07/10/2007 TIME: 07:23:03
> ALERT LEVEL: 7 = reserved
>
> REASON FOR ALERT
> SOURCE: 0 = unknown, no source stated
> SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
> PROBLEM DETAIL: 0 = no problem detail
>
> LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
>       ON       FLASH         OFF       ON         ON
> LED State: There was a system interruption that did not take the system 
> down.
> Check Chassis and Console Logs for error messages.
>
> 0x0000007000FF6292 000000F0 F0000000 - type  0 = Data Field Unused
> 0x5800087000FF6292 00006B06 0A071703 - type 11 = Timestamp 07/10/2007 

IIRC, FF6292 is a HPMC. Please collect and post the "ser pim" output.

thanks,
grant

> 07:23:03
> A: ack read of this entry - X: Disable all future alert messages
> Anything else skip redisplay the log entry
> ->Choice:Timeout!
> *****************************************
>
>
> -- 
> Jeff Bailey - http://www.raspberryginger.com/jbailey/
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
_______________________________________________
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Xref: news.gmane.org gmane.linux.ports.parisc:24713

In the process of getting the world up, running and debugged with
NPTL, Randolph has provided a patch to make gdb work better.  Building
this on Ubuntu turned out to be a problem because we're using the
exported kernel headers rather than the mashup that Debian has been
using.

The challenge is that the Debian kernel packages used to generate
asm/offsets.h from the 64-bit kernel build's asm-offsets.h and make
that available.  When we created linux-kernel-headers, we just
imported that.

Now, with the sanitised kernel headers being produced from the kernel
source, this no longer seems right.  It means that there's a header
that's not right for both 32-bit and 64-bit userspace, and it's being
generated, so it might change by accident and break the userspace ABI.
 I'd like to propose that we create a hand-crafted offsets.h that is
intended for userspace consuption and then stop generating the
asm-offsets.h file at build time.  I'll put together a patch to do
this over the weekend unless there's objections.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
_______________________________________________
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Subject: Re: [parisc-linux] Nonexistance of asm/offsets.h
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To: "Carlos O'Donell" <carlos@systemhalted.org>
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On 13/07/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> > In the process of getting the world up, running and debugged with
> > NPTL, Randolph has provided a patch to make gdb work better.  Building
> > this on Ubuntu turned out to be a problem because we're using the
> > exported kernel headers rather than the mashup that Debian has been
> > using.
> >
> > The challenge is that the Debian kernel packages used to generate
> > asm/offsets.h from the 64-bit kernel build's asm-offsets.h and make
> > that available.  When we created linux-kernel-headers, we just
> > imported that.
> >
> > Now, with the sanitised kernel headers being produced from the kernel
> > source, this no longer seems right.  It means that there's a header
> > that's not right for both 32-bit and 64-bit userspace, and it's being
> > generated, so it might change by accident and break the userspace ABI.
> >  I'd like to propose that we create a hand-crafted offsets.h that is
> > intended for userspace consuption and then stop generating the
> > asm-offsets.h file at build time.  I'll put together a patch to do
> > this over the weekend unless there's objections.
>
> In theory a 64-bit configured kernel should generate both a 32-bit and
> 64-bit versions of asm-offets.h. IIRC other arches use a wrapper
> asm-offets.h that checks for a compiler builtin define e.g. __hppa64__
> to select the right 32 or 64-bit header.

Right.  The question would be how to make a 32-bit kernel generate the
same header file so that make install_headers does the right thing for
parisc in all cases.

ppc, x86_64, and i386 don't seem to provide asm-offsets.h or offsets.h
in their exported headers.  Should we be exporting it at all?  I'll
look at other arches to see how they provide that data.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
_______________________________________________
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From: Mike Frysinger <vapier@gentoo.org>
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Subject: Re: [parisc-linux] Nonexistance of asm/offsets.h
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On Friday 13 July 2007, Jeff Bailey wrote:
> On 13/07/07, Carlos O'Donell <carlos@systemhalted.org> wrote:
> > > In the process of getting the world up, running and debugged with
> > > NPTL, Randolph has provided a patch to make gdb work better.  Building
> > > this on Ubuntu turned out to be a problem because we're using the
> > > exported kernel headers rather than the mashup that Debian has been
> > > using.
> > >
> > > The challenge is that the Debian kernel packages used to generate
> > > asm/offsets.h from the 64-bit kernel build's asm-offsets.h and make
> > > that available.  When we created linux-kernel-headers, we just
> > > imported that.
> > >
> > > Now, with the sanitised kernel headers being produced from the kernel
> > > source, this no longer seems right.  It means that there's a header
> > > that's not right for both 32-bit and 64-bit userspace, and it's being
> > > generated, so it might change by accident and break the userspace ABI.
> > >  I'd like to propose that we create a hand-crafted offsets.h that is
> > > intended for userspace consuption and then stop generating the
> > > asm-offsets.h file at build time.  I'll put together a patch to do
> > > this over the weekend unless there's objections.
> >
> > In theory a 64-bit configured kernel should generate both a 32-bit and
> > 64-bit versions of asm-offets.h. IIRC other arches use a wrapper
> > asm-offets.h that checks for a compiler builtin define e.g. __hppa64__
> > to select the right 32 or 64-bit header.
>
> Right.  The question would be how to make a 32-bit kernel generate the
> same header file so that make install_headers does the right thing for
> parisc in all cases.
>
> ppc, x86_64, and i386 don't seem to provide asm-offsets.h or offsets.h
> in their exported headers.  Should we be exporting it at all?  I'll
> look at other arches to see how they provide that data.

i mentioned this a while ago on the lists but didnt seem to get any notice ...

the way other architectures handle this is one of two ways:
 - create a similar static copy "ptrace.h" or "ptrace_offsets.h" in the kernel
 - create a local version for just gdb in the gdb sources
-mike

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Xref: news.gmane.org gmane.linux.ports.parisc:24716

Add __noreturn to parisc_terminate() as it does not return to caller.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index c3ec9f1..aebbfbc 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -414,7 +414,7 @@ void transfer_pim_to_trap_frame(struct pt_regs *regs)
  * has gone clearly wrong. We get called for faults in kernel space,
  * and HPMC's.
  */
-void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long offset)
+void __noreturn parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long offset)
 {
 	static DEFINE_SPINLOCK(terminate_lock);
 
diff --git a/include/asm-parisc/traps.h b/include/asm-parisc/traps.h
index 1945f99..9dae13a 100644
--- a/include/asm-parisc/traps.h
+++ b/include/asm-parisc/traps.h
@@ -5,7 +5,7 @@
 struct pt_regs;
 
 /* traps.c */
-void parisc_terminate(char *msg, struct pt_regs *regs,
+void __noreturn parisc_terminate(char *msg, struct pt_regs *regs,
 		int code, unsigned long offset);
 
 /* mm/fault.c */

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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] [PATCH] [PARISC] Clean up syslog output of crashing
	userspace apps.
Date: Sun, 15 Jul 2007 15:00:58 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:24717

Clean up syslog output of crashing userspace apps.
With this patch the syslog will print:
  portmap(1480): invalid access to 0x8232b578 at ip=0x41192af3 (segfault code 15)
which is consistent with outher output like:
  hald-probe-stor(1672): unaligned access to 0xfafcbd26 at ip=0x00014013

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index f6f6755..8d6ddf8 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -208,14 +208,9 @@ bad_area:
 		struct siginfo si;
 
 #ifdef PRINT_USER_FAULTS
-		printk(KERN_DEBUG "\n");
-		printk(KERN_DEBUG "do_page_fault() pid=%d command='%s' type=%lu address=0x%08lx\n",
-		    tsk->pid, tsk->comm, code, address);
-		if (vma) {
-			printk(KERN_DEBUG "vm_start = 0x%08lx, vm_end = 0x%08lx\n",
-					vma->vm_start, vma->vm_end);
-		}
-		show_regs(regs);
+		printk(KERN_DEBUG "%s(%d): invalid access to 0x%08lx at ip=0x%08lx" 
+				  " (segfault code %lu)\n",
+		    tsk->comm, tsk->pid, address, regs->iaoq[0], code);
 #endif
 		/* FIXME: actually we need to get the signo and code correct */
 		si.si_signo = SIGSEGV;
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] [PARISC] Clean up syslog output of crashing userspace apps.
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Xref: news.gmane.org gmane.linux.ports.parisc:24718

In reference to a message from Helge Deller, dated Jul 15:
> Clean up syslog output of crashing userspace apps.
> With this patch the syslog will print:
>   portmap(1480): invalid access to 0x8232b578 at ip=0x41192af3 (segfault code 15)
> which is consistent with outher output like:
>   hald-probe-stor(1672): unaligned access to 0xfafcbd26 at ip=0x00014013

The verbose dump we have now is actually quite useful for debugging.
Whereas unaligned accesses are usually very straightforward to debug
once you know where they are coming from (thus only need ip), segfaults
are not always that way. The full register dump comes in handy...

Can we make this controllable by prctl, so that we can have both verbose
and terse output options, with the verbose one being the default? My
rationale is that you don't usually know if an app is going to crash, so
it's better to have the debug info you need if it does crash, and you
can turn it off if your app runs in a way that the verbose output is
somehow adversely affecting it (slowing it down too much, etc).

Also, you might want to remove "segfault" from the output string, since
the crash can be from SIGSEGV, SIGILL, SIGBUS, etc...

thanks,
randolph



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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] [PARISC] Clean up syslog output of
Date: Sun, 15 Jul 2007 11:21:49 -0400 (EDT)
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> Also, you might want to remove "segfault" from the output string, since
> the crash can be from SIGSEGV, SIGILL, SIGBUS, etc...

Why not print the actual name of the interruption from the arch
instead of "code 15", etc?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] [PARISC] Clean up syslog output of
	crashing userspace apps.
Date: Sun, 15 Jul 2007 19:35:27 +0200
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Hi Randolph,

On Sunday 15 July 2007, Randolph Chung wrote:
> In reference to a message from Helge Deller, dated Jul 15:
> > Clean up syslog output of crashing userspace apps.
> > With this patch the syslog will print:
> >   portmap(1480): invalid access to 0x8232b578 at ip=0x41192af3 (segfault code 15)
> > which is consistent with outher output like:
> >   hald-probe-stor(1672): unaligned access to 0xfafcbd26 at ip=0x00014013
> 
> The verbose dump we have now is actually quite useful for debugging.
> Whereas unaligned accesses are usually very straightforward to debug
> once you know where they are coming from (thus only need ip), segfaults
> are not always that way. The full register dump comes in handy...

I do not disagree, that dumps are useful in general.
Nevertheless, is this specific dump really that useful ?
Can you really fix bugs with the dump without use of gdb ?
On i386 userspace crashes aren't even shown in the syslog.
 
> Can we make this controllable by prctl, so that we can have both verbose
> and terse output options, with the verbose one being the default? My
> rationale is that you don't usually know if an app is going to crash, so
> it's better to have the debug info you need if it does crash, and you
> can turn it off if your app runs in a way that the verbose output is
> somehow adversely affecting it (slowing it down too much, etc).

Good idea.
But again, on i386 there isn't shown anything.
Do we really want the overhead to add a new prctl option ?

> Also, you might want to remove "segfault" from the output string, since
> the crash can be from SIGSEGV, SIGILL, SIGBUS, etc...

Ok.

Helge

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On Sunday 15 July 2007, John David Anglin wrote:
> > Also, you might want to remove "segfault" from the output string, since
> > the crash can be from SIGSEGV, SIGILL, SIGBUS, etc...
> 
> Why not print the actual name of the interruption from the arch
> instead of "code 15", etc?

I'll take a look at that.

Helge
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> On Sunday 15 July 2007, Randolph Chung wrote:
> > In reference to a message from Helge Deller, dated Jul 15:
> > > Clean up syslog output of crashing userspace apps.
> > > With this patch the syslog will print:
> > >   portmap(1480): invalid access to 0x8232b578 at ip=0x41192af3 (segfault code 15)
> > > which is consistent with outher output like:
> > >   hald-probe-stor(1672): unaligned access to 0xfafcbd26 at ip=0x00014013
> > 
> > The verbose dump we have now is actually quite useful for debugging.
> > Whereas unaligned accesses are usually very straightforward to debug
> > once you know where they are coming from (thus only need ip), segfaults
> > are not always that way. The full register dump comes in handy...
> 
> I do not disagree, that dumps are useful in general.
> Nevertheless, is this specific dump really that useful ?
> Can you really fix bugs with the dump without use of gdb ?
> On i386 userspace crashes aren't even shown in the syslog.

I find the dumps useful.  While in most cases gdb is necessary
to fix bugs, it's not 100 % reliable when used to examine core
dumps (sorry Randolph).  The getdents bug that I tracked down
a few weeks ago was a case in point.

They are a double edge sword.  Recently, gcc was generating so
many faults that the log file system was filling up.  So, it
would be nice to be able to switch them on/off.

Hey, i386 hardly has any registers worth showing ;)

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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> I find the dumps useful.  While in most cases gdb is necessary
> to fix bugs, it's not 100 % reliable when used to examine core
> dumps (sorry Randolph).  The getdents bug that I tracked down
> a few weeks ago was a case in point.

I agree the dumps are a useful tool in addition to gdb; but I would like
to know more what is not reliable with gdb core dump debugging. I
actually find that gdb's core dump debugging is often times more
reliable than using gdb to debug running programs.

The biggest problem I've had with gdb is with debugging threaded apps.
gdb is still quite buggy for multithread debugging :(

randolph



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Xref: news.gmane.org gmane.linux.ports.parisc:24724

Hi Kurt,
CC: parisc-kernel development list

On Tuesday 17 July 2007, kurtm22@netscape.net wrote:
> You seem to be the maintainer for the stifb.c code for the Debian port
> to hppa. I have a 735/125 w/ 520MB mem and A1439A graphics.

The A1439A seems to be a "CRX24 = CRX+ (24-plane color)" graphics card acording to include/asm/grfioctl.h linux kernel header source file.

> I have been unable to boot the 2.6.18-4-parisc and 2.6.8-4-32 kernels.
> Before the system panics, 

Your problem looks similiar to this thread:
http://lists.parisc-linux.org/pipermail/parisc-linux/2004-September/024834.html
(or search for CRX on: http://lists.parisc-linux.org/pipermail/parisc-linux/2004-September/thread.html#24834)
What's the panic message / register dump ?

> there appears to be a line that says "switching to  
> STI color mode (I think).? 

What does it say exactly ?
There are two different strings which can be printed:
a) Console: switching to colour STI console 128x48
b) Console: switching to colour frame buffer device 128x48

The first (a) means it switches to text-only console (sticon), the second (b) is printed if the kernel switches to framebuffer mode (stifb).
Only the second one provides /dev/fb0 support and will allow you to use the X server.

> So what I am thinking is that there is something 
> up with accessing the hardware through the framebuffer.? 

Yes, might be.
You might want to try a more recent kernel (e.g. build yourself the original 2.6.22 kernel from kernel.org sources, it should build cleanly on hppa and no additional patches are needed).
Looking at the sources, it might be that the fb_memset() call in the function rattlerSetupPlanes()  [file: drivers/video/stifb.c] is wrong.
I sadly don't have the hardware to test, but if you compile a kernel, try to just delete this fb_memset() call. At least maybe it then maybe doesn't panic any more?

Sadly I don't have such a card myself to test.
Anyone wants to send me one ? :-)

> The system has been dist-upgraded to etch from sarge which
> may be why I can boot the 2.4.17-32 kernel but I cannot get X to start:
> -------------------------------------
> X Window System Version 7.1.1
> Release Date: 12 May 2006
> X Protocol Version 11, Revision 0, Release 7.1.1
> Build Operating System: UNKNOWN
> Current Operating System: Linux boss-429 2.4.17-32 #1 Sat Mar 16 17:09:00 MST 2002 parisc
> Build Date: 03 April 2007
> ??????? Before reporting problems, check http://wiki.x.org
> ??????? to make sure that you have the latest version.
> Module Loader present
> Markers: (--) probed, (**) from config file, (==) default setting,
> ??????? (++) from command line, (!!) notice, (II) informational,
> ??????? (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> (==) Log file: "/var/log/Xorg.0.log", Time: Tue Jul 17 15:44:00 2007
> (==) Using config file: "/etc/X11/xorg.conf"
> (EE) open /dev/fb0: No such device
> (EE) No devices detected.

Read above.
Probably sticon (which does not provide graphics mode) is active.

> This is what the device file looks like:
> /dev/fb0 = crw-rw---- 1 root video 29, 0 Oct? 3? 1999 /dev/fb0

That's ok.

Helge
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Xref: news.gmane.org gmane.linux.ports.parisc:24725

On Sunday 15 July 2007, Randolph Chung wrote:
> > I find the dumps useful.  While in most cases gdb is necessary
> > to fix bugs, it's not 100 % reliable when used to examine core
> > dumps (sorry Randolph).  The getdents bug that I tracked down
> > a few weeks ago was a case in point.
> 
> I agree the dumps are a useful tool in addition to gdb; [....]

Ok, here is an updated patch.
As requested by you I kept the register dump and in addition added full 
string table of the interrupts/traps.

New example:
a.out(1876): Data TLB miss fault/Data page fault (trap #15) for addr 0x0000aabb at ip=0x000105c4
<here comes the full register dump>

Please test.

Helge
______________________
Changes:
- some minor code path cleanups (const strings, drop unneeded return values)
- converted all traps to the form <application>(<pid>): <type_of_crash> (<crash_id>) ...
- use instruction_pointer() macro instead of "regs->iaoq[0] & ~3" 
- mark parisc_terminate() with __noreturn
- added interruption/trap description table

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index bbf029a..0f71d23 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -51,7 +51,7 @@
 DEFINE_SPINLOCK(pa_dbit_lock);
 #endif
 
-static int printbinary(char *buf, unsigned long x, int nbits)
+static void printbinary(char *buf, unsigned long x, int nbits)
 {
 	unsigned long mask = 1UL << (nbits - 1);
 	while (mask != 0) {
@@ -59,8 +59,6 @@ static int printbinary(char *buf, unsigned long x, int nbits)
 		mask >>= 1;
 	}
 	*buf = '\0';
-
-	return nbits;
 }
 
 #ifdef CONFIG_64BIT
@@ -75,7 +73,7 @@ static int printbinary(char *buf, unsigned long x, int nbits)
 		lvl, f, (x), (x+3), (r)[(x)+0], (r)[(x)+1],		\
 		(r)[(x)+2], (r)[(x)+3])
 
-static void print_gr(char *level, struct pt_regs *regs)
+static void print_gr(const char *level, struct pt_regs *regs)
 {
 	int i;
 	char buf[64];
@@ -89,7 +87,7 @@ static void print_gr(char *level, struct pt_regs *regs)
 		PRINTREGS(level, regs->gr, "r", RFMT, i);
 }
 
-static void print_fr(char *level, struct pt_regs *regs)
+static void print_fr(const char *level, struct pt_regs *regs)
 {
 	int i;
 	char buf[64];
@@ -119,7 +117,7 @@ static void print_fr(char *level, struct pt_regs *regs)
 void show_regs(struct pt_regs *regs)
 {
 	int i;
-	char *level;
+	const char *level;
 	unsigned long cr30, cr31;
 
 	level = user_mode(regs) ? KERN_DEBUG : KERN_CRIT;
@@ -212,16 +210,16 @@ int is_valid_bugaddr(unsigned long iaoq)
 	return 1;
 }
 
-void die_if_kernel(char *str, struct pt_regs *regs, long err)
+void die_if_kernel(const char *str, struct pt_regs *regs, long err)
 {
 	if (user_mode(regs)) {
 		if (err == 0)
 			return; /* STFU */
 
-		printk(KERN_CRIT "%s (pid %d): %s (code %ld) at " RFMT "\n",
-			current->comm, current->pid, str, err, regs->iaoq[0]);
 #ifdef PRINT_USER_FAULTS
-		/* XXX for debugging only */
+		printk(KERN_CRIT "%s(%d): %s (code %ld) at " RFMT "\n",
+			current->comm, current->pid, str, err, 
+			instruction_pointer(regs));
 		show_regs(regs);
 #endif
 		return;
@@ -251,7 +249,7 @@ KERN_CRIT "                     ||     ||\n");
 		pdc_console_restart();
 	
 	if (err)
-		printk(KERN_CRIT "%s (pid %d): %s (code %ld)\n",
+		printk(KERN_CRIT "%s(%d): %s (code %ld)\n",
 			current->comm, current->pid, str, err);
 
 	/* Wot's wrong wif bein' racy? */
@@ -292,7 +290,7 @@ static void handle_gdb_break(struct pt_regs *regs, int wot)
 	si.si_signo = SIGTRAP;
 	si.si_errno = 0;
 	si.si_code = wot;
-	si.si_addr = (void __user *) (regs->iaoq[0] & ~3);
+	si.si_addr = (void __user *) instruction_pointer(regs);
 	force_sig_info(SIGTRAP, &si, current);
 }
 
@@ -303,7 +301,7 @@ static void handle_break(struct pt_regs *regs)
 	if (unlikely(iir == PARISC_BUG_BREAK_INSN && !user_mode(regs))) {
 		/* check if a BUG() or WARN() trapped here.  */
 		enum bug_trap_type tt;
-		tt = report_bug(regs->iaoq[0] & ~3, regs);
+		tt = report_bug(instruction_pointer(regs), regs);
 		if (tt == BUG_TRAP_TYPE_WARN) {
 			regs->iaoq[0] += 4;
 			regs->iaoq[1] += 4;
@@ -315,9 +313,9 @@ static void handle_break(struct pt_regs *regs)
 
 #ifdef PRINT_USER_FAULTS
 	if (unlikely(iir != GDB_BREAK_INSN)) {
-		printk(KERN_DEBUG "break %d,%d: pid=%d command='%s'\n",
-			iir & 31, (iir>>13) & ((1<<13)-1),
-			current->pid, current->comm);
+		printk(KERN_DEBUG "%s(%d): break %d,%d\n",
+			current->comm, current->pid,
+			iir & 31, (iir>>13) & ((1<<13)-1));
 		show_regs(regs);
 	}
 #endif
@@ -415,9 +413,11 @@ void transfer_pim_to_trap_frame(struct pt_regs *regs)
  * has gone clearly wrong. We get called for faults in kernel space,
  * and HPMC's.
  */
-void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long offset)
+void __noreturn parisc_terminate(const char *msg, struct pt_regs *regs,
+				 unsigned long code, unsigned long offset)
 {
 	static DEFINE_SPINLOCK(terminate_lock);
+	struct unwind_frame_info info;
 
 	oops_in_progress = 1;
 
@@ -433,27 +433,15 @@ void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long o
 		pdc_console_restart();
 
 	/* Not all paths will gutter the processor... */
-	switch(code){
-
-	case 1:
+	if (code == 1)
 		transfer_pim_to_trap_frame(regs);
-		break;
-
-	default:
-		/* Fall through */
-		break;
-
-	}
 	    
-	{
-		/* show_stack(NULL, (unsigned long *)regs->gr[30]); */
-		struct unwind_frame_info info;
-		unwind_frame_init(&info, current, regs);
-		do_show_stack(&info);
-	}
+	/* show_stack(NULL, (unsigned long *)regs->gr[30]); */
+	unwind_frame_init(&info, current, regs);
+	do_show_stack(&info);
 
 	printk("\n");
-	printk(KERN_CRIT "%s: Code=%d regs=%p (Addr=" RFMT ")\n",
+	printk(KERN_CRIT "%s: trap=%ld regs=%p (Addr=" RFMT ")\n",
 			msg, code, regs, offset);
 	show_regs(regs);
 
@@ -476,7 +464,46 @@ void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long o
 	panic(msg);
 }
 
-void handle_interruption(int code, struct pt_regs *regs)
+static const char * const interruption_txt[] = {
+	[1] = "High-priority machine check (HPMC)",
+	[2] = "Power failure interrupt",
+	[3] = "Recovery counter trap",
+	[4] = "External interrupt trap",
+	[5] = "Low-priority machine check",
+	[6] = "Instruction TLB miss fault/Instruction page fault",
+	[7] = "Instruction memory protection trap",
+	[8] = "Illegal instruction trap",
+	[9] = "Break instruction trap",
+	[10] = "Privileged operation trap",
+	[11] = "Privileged register trap",
+	[12] = "Overflow trap",
+	[13] = "Conditional trap",
+	[14] = "Assist exception trap",
+	[15] = "Data TLB miss fault/Data page fault",
+	[16] = "Non-access instruction TLB miss fault",
+	[17] = "Non-access data TLB miss fault/Non-access data page fault",
+	[18] = "Unaligned access trap",
+	[19] = "Data memory break trap",
+	[21] = "Page reference trap",
+	[25] = "Taken branch trap",
+	[26] = "Data memory access rights trap",
+	[27] = "Data memory protection ID trap",
+	[28] = "Unaligned data reference trap",
+	[29] = "Performance monitor interrupt",
+	[30] = "Instruction debug trap",
+};
+
+const char * interruption_descr(unsigned long code)
+{
+	if (code >= ARRAY_SIZE(interruption_txt) ||
+		!interruption_txt[code] )
+		return "Unknown interruption trap"; 
+	else
+		return interruption_txt[code];
+}
+
+
+void handle_interruption(unsigned int code, struct pt_regs *regs)
 {
 	unsigned long fault_address = 0;
 	unsigned long fault_space = 0;
@@ -529,13 +556,13 @@ void handle_interruption(int code, struct pt_regs *regs)
 		/* set up a new led state on systems shipped with a LED State panel */
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_HPMC);
 		    
-	    	parisc_terminate("High Priority Machine Check (HPMC)",
-				regs, code, 0);
+	    	parisc_terminate(interruption_txt[1], regs, code, 0);
 		/* NOT REACHED */
 		
 	case  2:
 		/* Power failure interrupt */
-		printk(KERN_CRIT "Power failure interrupt !\n");
+		printk(KERN_CRIT "%s\n", interruption_txt[2]);
+		kill_cad_pid(SIGPWR, 1);
 		return;
 
 	case  3:
@@ -563,7 +590,7 @@ void handle_interruption(int code, struct pt_regs *regs)
 
 	case  8:
 		/* Illegal instruction trap */
-		die_if_kernel("Illegal instruction", regs, code);
+		die_if_kernel(interruption_txt[8], regs, code);
 		si.si_code = ILL_ILLOPC;
 		goto give_sigill;
 
@@ -574,7 +601,7 @@ void handle_interruption(int code, struct pt_regs *regs)
 	
 	case 10:
 		/* Privileged operation trap */
-		die_if_kernel("Privileged operation", regs, code);
+		die_if_kernel(interruption_txt[10], regs, code);
 		si.si_code = ILL_PRVOPC;
 		goto give_sigill;
 	
@@ -597,7 +624,7 @@ void handle_interruption(int code, struct pt_regs *regs)
 			return;
 		}
 
-		die_if_kernel("Privileged register usage", regs, code);
+		die_if_kernel(interruption_txt[11], regs, code);
 		si.si_code = ILL_PRVREG;
 	give_sigill:
 		si.si_signo = SIGILL;
@@ -632,7 +659,7 @@ void handle_interruption(int code, struct pt_regs *regs)
 		
 	case 14:
 		/* Assist Exception Trap, i.e. floating point exception. */
-		die_if_kernel("Floating point exception", regs, 0); /* quiet */
+		die_if_kernel(interruption_txt[14], regs, 0); /* quiet */
 		handle_fpe(regs);
 		return;
 		
@@ -727,7 +754,7 @@ void handle_interruption(int code, struct pt_regs *regs)
 		/* Fall Through */
 	case 27: 
 		/* Data memory protection ID trap */
-		die_if_kernel("Protection id trap", regs, code);
+		die_if_kernel(interruption_descr(code), regs, code);
 		si.si_code = SEGV_MAPERR;
 		si.si_signo = SIGSEGV;
 		si.si_errno = 0;
@@ -746,8 +773,8 @@ void handle_interruption(int code, struct pt_regs *regs)
 	default:
 		if (user_mode(regs)) {
 #ifdef PRINT_USER_FAULTS
-			printk(KERN_DEBUG "\nhandle_interruption() pid=%d command='%s'\n",
-			    current->pid, current->comm);
+			printk(KERN_DEBUG "%s(%d): unknown trap %d in handle_interruption().\n",
+			    current->comm, current->pid, code);
 			show_regs(regs);
 #endif
 			/* SIGBUS, for lack of a better one. */
@@ -767,12 +794,12 @@ void handle_interruption(int code, struct pt_regs *regs)
 	if (user_mode(regs)) {
 	    if ((fault_space >> SPACEID_SHIFT) != (regs->sr[7] >> SPACEID_SHIFT)) {
 #ifdef PRINT_USER_FAULTS
+		printk(KERN_DEBUG "%s(%d): ", current->comm, current->pid);
 		if (fault_space == 0)
-			printk(KERN_DEBUG "User Fault on Kernel Space ");
+			printk("User Fault on Kernel Space\n");
 		else
-			printk(KERN_DEBUG "User Fault (long pointer) (fault %d) ",
+			printk("User Fault (long pointer) (trap #%d)\n",
 			       code);
-		printk("pid=%d command='%s'\n", current->pid, current->comm);
 		show_regs(regs);
 #endif
 		si.si_signo = SIGSEGV;
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index f6f6755..ef6394f 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -36,7 +36,7 @@
 DEFINE_PER_CPU(struct exception_data, exception_data);
 
 /*
- * parisc_acctyp(unsigned int inst) --
+ * parisc_acctyp(unsigned long code, unsigned int inst) --
  *    Given a PA-RISC memory access instruction, determine if the
  *    the instruction would perform a memory read or memory write
  *    operation.
@@ -208,13 +208,10 @@ bad_area:
 		struct siginfo si;
 
 #ifdef PRINT_USER_FAULTS
-		printk(KERN_DEBUG "\n");
-		printk(KERN_DEBUG "do_page_fault() pid=%d command='%s' type=%lu address=0x%08lx\n",
-		    tsk->pid, tsk->comm, code, address);
-		if (vma) {
-			printk(KERN_DEBUG "vm_start = 0x%08lx, vm_end = 0x%08lx\n",
-					vma->vm_start, vma->vm_end);
-		}
+		printk(KERN_DEBUG "%s(%d): %s (trap #%ld) for "
+				  "addr 0x%08lx at ip=0x%08lx\n",
+			tsk->comm, tsk->pid, interruption_descr(code), 
+			code, address, instruction_pointer(regs));
 		show_regs(regs);
 #endif
 		/* FIXME: actually we need to get the signo and code correct */
diff --git a/include/asm-parisc/traps.h b/include/asm-parisc/traps.h
index 1945f99..ee92563 100644
--- a/include/asm-parisc/traps.h
+++ b/include/asm-parisc/traps.h
@@ -5,8 +5,9 @@
 struct pt_regs;
 
 /* traps.c */
-void parisc_terminate(char *msg, struct pt_regs *regs,
-		int code, unsigned long offset);
+const char * interruption_descr(unsigned long code);
+void __noreturn parisc_terminate(const char *msg, struct pt_regs *regs,
+		unsigned long code, unsigned long offset);
 
 /* mm/fault.c */
 void do_page_fault(struct pt_regs *regs, unsigned long code,
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Xref: news.gmane.org gmane.linux.ports.parisc:24726

Hello Helge,

Just try your patch against latest 2.6.22-pa1 and it seems that:
@@ -303,7 +301,7 @@ static void handle_break(struct pt_regs *regs)
  	if (unlikely(iir == PARISC_BUG_BREAK_INSN && !user_mode(regs))) {
  		/* check if a BUG() or WARN() trapped here.  */
  		enum bug_trap_type tt;
-		tt = report_bug(regs->iaoq[0] & ~3, regs);
+		tt = report_bug(instruction_pointer(regs), regs);

should be
+		tt = report_bug(instruction_pointer(regs));

Hth,
	J.
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Hello *,

There was <http://lists.parisc-linux.org/pipermail/parisc-linux/2007-June/031749.html>

Really no interest, just missed or did I made a big mistake?

Tx,
	J.

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Xref: news.gmane.org gmane.linux.ports.parisc:24728

Hi Joel,

On Sunday 22 July 2007, Joel Soete wrote:
> Just try your patch against latest 2.6.22-pa1 and it seems that:
>   		enum bug_trap_type tt;
> -		tt = report_bug(regs->iaoq[0] & ~3, regs);
> +		tt = report_bug(instruction_pointer(regs), regs);
> should be
> +		tt = report_bug(instruction_pointer(regs));

Why ?
In include/linux/bug.h the function report_bug() is defined as:
	report_bug(unsigned long bug_addr, struct pt_regs *regs)

Helge
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Hi Joel,

On Sunday 22 July 2007, Joel Soete wrote:
> There was <http://lists.parisc-linux.org/pipermail/parisc-linux/2007-June/031749.html>
> 
> Really no interest, just missed or did I made a big mistake?

I don't like that patch very much.
It converts everything needlessly to (unsigned long long), which is 64bit long.

Wouldn't it be better to use "%z" or "%z"<something> ?
%z refers to size_t which should be the native bit length.
I'm not sure what others on this list think about it, or if this even works with 64bit...

Helge
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> Hi Joel,
> 
> On Sunday 22 July 2007, Joel Soete wrote:
> > Just try your patch against latest 2.6.22-pa1 and it seems that:
> >   		enum bug_trap_type tt;
> > -		tt = report_bug(regs->iaoq[0] & ~3, regs);
> > +		tt = report_bug(instruction_pointer(regs), regs);
> > should be
> > +		tt = report_bug(instruction_pointer(regs));
> 
> Why ?
> In include/linux/bug.h the function report_bug() is defined as:
> 	report_bug(unsigned long bug_addr, struct pt_regs *regs)

In 2.6.22.1, it's defined as:
enum bug_trap_type report_bug(unsigned long bug_addr);

I had to make the same change as Joel.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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On Monday 23 July 2007, John David Anglin wrote:
> > Hi Joel,
> > 
> > On Sunday 22 July 2007, Joel Soete wrote:
> > > Just try your patch against latest 2.6.22-pa1 and it seems that:
> > >   		enum bug_trap_type tt;
> > > -		tt = report_bug(regs->iaoq[0] & ~3, regs);
> > > +		tt = report_bug(instruction_pointer(regs), regs);
> > > should be
> > > +		tt = report_bug(instruction_pointer(regs));
> > 
> > Why ?
> > In include/linux/bug.h the function report_bug() is defined as:
> > 	report_bug(unsigned long bug_addr, struct pt_regs *regs)
> 
> In 2.6.22.1, it's defined as:
> enum bug_trap_type report_bug(unsigned long bug_addr);
> 
> I had to make the same change as Joel.

Ah, ok..
I'm on 2.6.23pre already...

Helge
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From: kurtm22@netscape.net
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Subject: Re: Boot problem with HPPA 735/125 w/ A1439A CRX
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 Hi Helge,

I did what you suggested and built a new kernel from scratch using the 2.6.22
source tar.? I did not comment out the fb_memset() call in stifb.c
prior to the build so I could post the crash results - perhaps
it will provide more insight to what is going on:

sticon: Initializing sti text console
Console: switching to colour STI console 160x64
Backtrace:
??? [<1044e1b0>] stifb_init_fb+0x67c/0x928
??? [<1044e4c4>] stifb_init+0x68/0xf8
??? ? [<1043d4187>] kernel_init+0xfc/0x2c8
??? [<10109c5c>] ret_from_kernel_thread+0x1c/0x24

kernel fault:? code=15? regs=10984200? (addr=f9000000)

.
.
.
.

I can post more of the dump if you need it.? I left the machine 
sitting there as i am writing down what I see on the screen.

--Kurt



 

-----Original Message-----
From: Helge Deller <deller@gmx.de>
To: kurtm22@netscape.net
Cc: parisc-linux@lists.parisc-linux.org
Sent: Tue, 17 Jul 2007 5:03 pm
Subject: Re: Boot problem with HPPA 735/125 w/ A1439A CRX










Hi Kurt,
CC: parisc-kernel development list

On Tuesday 17 July 2007, kurtm22@netscape.net wrote:
> You seem to be the maintainer for the stifb.c code for the Debian port
> to hppa. I have a 735/125 w/ 520MB mem and A1439A graphics.

The A1439A seems to be a "CRX24 = CRX+ (24-plane color)" graphics card acording 
to include/asm/grfioctl.h linux kernel header source file.

> I have been unable to boot the 2.6.18-4-parisc and 2.6.8-4-32 kernels.
> Before the system panics, 

Your problem looks similiar to this thread:
http://lists.parisc-linux.org/pipermail/parisc-linux/2004-September/024834.html
(or search for CRX on: http://lists.parisc-linux.org/pipermail/parisc-linux/2004-September/thread.html#24834)
What's the panic message / register dump ?

> there appears to be a line that says "switching to  
> STI color mode (I think).? 

What does it say exactly ?
There are two different strings which can be printed:
a) Console: switching to colour STI console 128x48
b) Console: switching to colour frame buffer device 128x48

The first (a) means it switches to text-only console (sticon), the second (b) is 
printed if the kernel switches to framebuffer mode (stifb).
Only the second one provides /dev/fb0 support and will allow you to use the X 
server.

> So what I am thinking is that there is something 
> up with accessing the hardware through the framebuffer.? 

Yes, might be.
You might want to try a more recent kernel (e.g. build yourself the original 
2.6.22 kernel from kernel.org sources, it should build cleanly on hppa and no 
additional patches are needed).
Looking at the sources, it might be that the fb_memset() call in the function 
rattlerSetupPlanes()  [file: drivers/video/stifb.c] is wrong.
I sadly don't have the hardware to test, but if you compile a kernel, try to 
just delete this fb_memset() call. At least maybe it then maybe doesn't panic 
any more?

Sadly I don't have such a card myself to test.
Anyone wants to send me one ? :-)

> The system has been dist-upgraded to etch from sarge which
> may be why I can boot the 2.4.17-32 kernel but I cannot get X to start:
> -------------------------------------
> X Window System Version 7.1.1
> Release Date: 12 May 2006
> X Protocol Version 11, Revision 0, Release 7.1.1
> Build Operating System: UNKNOWN
> Current Operating System: Linux boss-429 2.4.17-32 #1 Sat Mar 16 17:09:00 MST 
2002 parisc
> Build Date: 03 April 2007
> ??????? Before reporting problems, check http://wiki.x.org
> ??????? to make sure that you have the latest version.
> Module Loader present
> Markers: (--) probed, (**) from config file, (==) default setting,
> ??????? (++) from command line, (!!) notice, (II) informational,
> ??????? (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> (==) Log file: "/var/log/Xorg.0.log", Time: Tue Jul 17 15:44:00 2007
> (==) Using config file: "/etc/X11/xorg.conf"
> (EE) open /dev/fb0: No such device
> (EE) No devices detected.

Read above.
Probably sticon (which does not provide graphics mode) is active.

> This is what the device file looks like:
> /dev/fb0 = crw-rw---- 1 root video 29, 0 Oct? 3? 1999 /dev/fb0

That's ok.

Helge



 


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<div> Hi Helge,<br>
<br>
I did what you suggested and built a new kernel from scratch using the 2.6.22<br>
source tar.&nbsp; I did not comment out the <tt><tt>fb_memset() call in stifb.c<br>
prior to the build so I could post the crash results - perhaps<br>
it will provide more insight to what is going on:<br>
<br>
sticon: Initializing sti text console<br>
Console: switching to colour STI console 160x64<br>
Backtrace:<br>
&nbsp;&nbsp;&nbsp; [&lt;1044e1b0&gt;] stifb_init_fb+0x67c/0x928<br>
&nbsp;&nbsp;&nbsp; </tt></tt><tt><tt>[&lt;1044e4c4&gt;] stifb_init+0x68/0xf8<span style="font-family: Verdana,Arial,Helvetica,sans-serif;"><br>
&nbsp;&nbsp;&nbsp; &nbsp; </span>[&lt;1043d4187&gt;] kernel_init+0xfc/0x2c8<br>
&nbsp;&nbsp;&nbsp; </tt></tt><tt><tt>[&lt;10109c5c&gt;] ret_from_kernel_thread+0x1c/0x24<br>
<br>
kernel fault:&nbsp; code=15&nbsp; regs=10984200&nbsp; (addr=f9000000)<br>
<br>
.<br>
.<br>
.<br>
.<br>
<br>
I can post more of the dump if you need it.&nbsp; I left the machine <br>
sitting there as i am writing down what I see on the screen.<br>
<br>
--Kurt<br>

</tt></tt></div>

<div> <br>
</div>
-----Original Message-----<br>
From: Helge Deller &lt;deller@gmx.de&gt;<br>
To: kurtm22@netscape.net<br>
Cc: parisc-linux@lists.parisc-linux.org<br>
Sent: Tue, 17 Jul 2007 5:03 pm<br>
Subject: Re: Boot problem with HPPA 735/125 w/ A1439A CRX<br>
<br>






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<pre style="font-size: 9pt;"><tt>Hi Kurt,<br>
CC: parisc-kernel development list<br>
<br>
On Tuesday 17 July 2007, <a href="mailto:kurtm22@netscape.net">kurtm22@netscape.net</a> wrote:<br>
&gt; You seem to be the maintainer for the stifb.c code for the Debian port<br>
&gt; to hppa. I have a 735/125 w/ 520MB mem and A1439A graphics.<br>
<br>
The A1439A seems to be a "CRX24 = CRX+ (24-plane color)" graphics card acording <br>
to include/asm/grfioctl.h linux kernel header source file.<br>
<br>
&gt; I have been unable to boot the 2.6.18-4-parisc and 2.6.8-4-32 kernels.<br>
&gt; Before the system panics, <br>
<br>
Your problem looks similiar to this thread:<br>
<a href="http://lists.parisc-linux.org/pipermail/parisc-linux/2004-September/024834.html" target="_blank">http://lists.parisc-linux.org/pipermail/parisc-linux/2004-September/024834.html</a><br>
(or search for CRX on: <a href="http://lists.parisc-linux.org/pipermail/parisc-linux/2004-September/thread.html#24834" target="_blank">http://lists.parisc-linux.org/pipermail/parisc-linux/2004-September/thread.html#24834</a>)<br>
What's the panic message / register dump ?<br>
<br>
&gt; there appears to be a line that says "switching to  <br>
&gt; STI color mode (I think).? <br>
<br>
What does it say exactly ?<br>
There are two different strings which can be printed:<br>
a) Console: switching to colour STI console 128x48<br>
b) Console: switching to colour frame buffer device 128x48<br>
<br>
The first (a) means it switches to text-only console (sticon), the second (b) is <br>
printed if the kernel switches to framebuffer mode (stifb).<br>
Only the second one provides /dev/fb0 support and will allow you to use the X <br>
server.<br>
<br>
&gt; So what I am thinking is that there is something <br>
&gt; up with accessing the hardware through the framebuffer.? <br>
<br>
Yes, might be.<br>
You might want to try a more recent kernel (e.g. build yourself the original <br>
2.6.22 kernel from kernel.org sources, it should build cleanly on hppa and no <br>
additional patches are needed).<br>
Looking at the sources, it might be that the fb_memset() call in the function <br>
rattlerSetupPlanes()  [file: drivers/video/stifb.c] is wrong.<br>
I sadly don't have the hardware to test, but if you compile a kernel, try to <br>
just delete this fb_memset() call. At least maybe it then maybe doesn't panic <br>
any more?<br>
<br>
Sadly I don't have such a card myself to test.<br>
Anyone wants to send me one ? :-)<br>
<br>
&gt; The system has been dist-upgraded to etch from sarge which<br>
&gt; may be why I can boot the 2.4.17-32 kernel but I cannot get X to start:<br>
&gt; -------------------------------------<br>
&gt; X Window System Version 7.1.1<br>
&gt; Release Date: 12 May 2006<br>
&gt; X Protocol Version 11, Revision 0, Release 7.1.1<br>
&gt; Build Operating System: UNKNOWN<br>
&gt; Current Operating System: Linux boss-429 2.4.17-32 #1 Sat Mar 16 17:09:00 MST <br>
2002 parisc<br>
&gt; Build Date: 03 April 2007<br>
&gt; ??????? Before reporting problems, check <a href="http://wiki.x.org" target="_blank">http://wiki.x.org</a><br>
&gt; ??????? to make sure that you have the latest version.<br>
&gt; Module Loader present<br>
&gt; Markers: (--) probed, (**) from config file, (==) default setting,<br>
&gt; ??????? (++) from command line, (!!) notice, (II) informational,<br>
&gt; ??????? (WW) warning, (EE) error, (NI) not implemented, (??) unknown.<br>
&gt; (==) Log file: "/var/log/Xorg.0.log", Time: Tue Jul 17 15:44:00 2007<br>
&gt; (==) Using config file: "/etc/X11/xorg.conf"<br>
&gt; (EE) open /dev/fb0: No such device<br>
&gt; (EE) No devices detected.<br>
<br>
Read above.<br>
Probably sticon (which does not provide graphics mode) is active.<br>
<br>
&gt; This is what the device file looks like:<br>
&gt; /dev/fb0 = crw-rw---- 1 root video 29, 0 Oct? 3? 1999 /dev/fb0<br>
<br>
That's ok.<br>
<br>
Helge<br>
</tt></pre>
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Subject: Re: [parisc-linux] -pie is broken on hppa
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Xref: news.gmane.org gmane.linux.ports.parisc:24733

> PIE's don't work on NPTL either, FWIW.

I did an apt-get upgrade today on one of my systems and noticed
that portmap is now segfaulting at the same spot as nscd (i.e.,
in _start).

I don't know much about the mechanics of pie applications but it
appears that the dynamic loader relocates them like shared libraries.
We don't seem to handle this correctly.

(gdb) break *0x1ad4
Breakpoint 1 at 0x1ad4
(gdb) r
Starting program: /sbin/portmap
Warning:
Cannot insert breakpoint 1.
Error accessing memory address 0x1ad4: Input/output error.

(gdb) disass 0x1ad4 0x1ae4
Dump of assembler code from 0x1ad4 to 0x1ae4:
0x00001ad4 <_init+1040>:        stw r0,-4(sp)
0x00001ad8 <_init+1044>:        stw rp,-14(sp)
0x00001adc <_init+1048>:        ldo 40(sp),sp
0x00001ae0 <_init+1052>:        stw sp,-4(sp)
(gdb) del 1
(gdb) r
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /sbin/portmap

Program received signal SIGSEGV, Segmentation fault.
0x41128af0 in ?? ()
(gdb) disass 0x41128ad4 0x41128b00
Dump of assembler code from 0x41128ad4 to 0x41128b00:
0x41128ad4:     stw r0,-4(sp)
0x41128ad8:     stw rp,-14(sp)
0x41128adc:     ldo 40(sp),sp
0x41128ae0:     stw sp,-4(sp)
0x41128ae4:     stw r19,-20(sp)
0x41128ae8:     stw r23,-38(sp)
0x41128aec:     addil L%4112b000,r19,r1
0x41128af0:     ldw -11c(r1),r26
0x41128af4:     ldw 0(r26),r26
0x41128af8:     addil L%4112b000,r19,r1
0x41128afc:     ldw -110(r1),r23
End of assembler dump.
(gdb) p/x $r19
$1 = 0x4112c694
(gdb) p/x $r1
$2 = 0x82257694

Note the offset in the addil insns and the PIC register value.  I see
this relocation with readelf:

00001aec  00000102 R_PARISC_DIR21L   000000f4   .interp + 3df0

This relocation can't be used in a relocatable executable.

We seem to now have a R_PARISC_DLTIND21L in Scrt1.o.  Possibly, portmap
just needs to be relinked.  On the otherhand, it appears to me that
binutils is broken and needs updating for pie.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Jul 26, 2007 at 05:13:07PM -0400, John David Anglin wrote:
> > PIE's don't work on NPTL either, FWIW.
> 
> I did an apt-get upgrade today on one of my systems and noticed
> that portmap is now segfaulting at the same spot as nscd (i.e.,
> in _start).
> 

portmap has been built against libc6-dev 2.5-9 while the PIE fixed
appeared in libc6-dev 2.5-11...

So it need to be rebuilt.

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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The patch below is necessary to make the hppa glibc buildable in HEAD
and glibc-2_6-branch wrt recent changes that have been done in NPTL
code.


2007-07-27  Aurelien Jarno  <aurelien@aurel32.net>

	* sysdeps/hppa/nptl/tls.h (THREAD_GSCOPE_FLAG_UNUSED,
	THREAD_GSCOPE_FLAG_USED, THREAD_GSCOPE_FLAG_WAIT): Define.
	(THREAD_GSCOPE_RESET_FLAG, THREAD_GSCOPE_SET_FLAG,
	THREAD_GSCOPE_WAIT): Define.

--- ports/sysdeps/hppa/nptl/tls.h.orig	2007-07-27 08:17:35.000000000 -0600
+++ ports/sysdeps/hppa/nptl/tls.h	2007-07-27 08:18:39.000000000 -0600
@@ -147,6 +147,29 @@
 	: : "r" (cr27) : "r26" );
 }
 
+/* Get and set the global scope generation counter in struct pthread.  */
+#define THREAD_GSCOPE_FLAG_UNUSED 0
+#define THREAD_GSCOPE_FLAG_USED   1
+#define THREAD_GSCOPE_FLAG_WAIT   2
+#define THREAD_GSCOPE_RESET_FLAG() \
+  do									     \
+    { int __res								     \
+	= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag,	     \
+			       THREAD_GSCOPE_FLAG_UNUSED);		     \
+      if (__res == THREAD_GSCOPE_FLAG_WAIT)				     \
+	lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1);		     \
+    }									     \
+  while (0)
+#define THREAD_GSCOPE_SET_FLAG() \
+  do									     \
+    {									     \
+      THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED;	     \
+      atomic_write_barrier ();						     \
+    }									     \
+  while (0)
+#define THREAD_GSCOPE_WAIT() \
+  GL(dl_wait_lookup_done) ()
+
 #endif /* __ASSEMBLER__ */
 
 #endif	/* tls.h */

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net
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From - Thu Nov 08 21:36:09 2018
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From: Joel Soete <soete.joel@scarlet.be>
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Subject: Re: [parisc-linux] Some warning: ... cleanup; relay no interest?
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To: Helge Deller <deller@gmx.de>
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Hi Helge,

Helge Deller wrote:
> On Monday 23 July 2007, Helge Deller wrote:
>> Hi Joel,
>>
>> On Sunday 22 July 2007, Joel Soete wrote:
>>> There was <http://lists.parisc-linux.org/pipermail/parisc-linux/2007-June/031749.html>
>>>
>>> Really no interest, just missed or did I made a big mistake?
>> I don't like that patch very much.
>> It converts everything needlessly to (unsigned long long), which is 64bit long.
>>
>> Wouldn't it be better to use "%z" or "%z"<something> ?
>> %z refers to size_t which should be the native bit length.
> 
> Hi Joel,
> 
> e.g. replace "%lx" by "%Zx" or "%zx" ???
> (untested!!!)
> 
> Helge
> 
> 
I just do a short test again dino.c:

./drivers/parisc/dino.c
     898         if (request_resource(&ioport_resource, res) < 0) {
     899                 printk(KERN_ERR "%s: request I/O Port region failed "
     900                        "0x%Zx/%Zx (hpa 0x%p)\n",
     901                        name, res->start, res->end, dino_dev->hba.base_addr);
     902                 return 1;
     903         }

and unfortunately it doesn't help:
/CAD/linux-2.6.22-pa/drivers/parisc/dino.c: In function dino_bridge_init:
/CAD/linux-2.6.22-pa/drivers/parisc/dino.c:821: warning: format %lx expects type long unsigned int, but argument 4 has type 
resource_size_t
/CAD/linux-2.6.22-pa/drivers/parisc/dino.c:821: warning: format %lx expects type long unsigned int, but argument 5 has type 
resource_size_t

same warning either Z or z qualifier :_(

As far as I understand of headers' comments:
./lib/vsprintf.c:
     270         int qualifier;          /* 'h', 'l', or 'L' for integer fields */
     271                                 /* 'z' support added 23/7/1999 S.H.    */
     272                                 /* 'z' changed to 'Z' --davidm 1/25/99 */
     273                                 /* 't' added for ptrdiff_t */

(so Z or z are all acceptable)

     472                 } else if (qualifier == 'Z' || qualifier == 'z') {
     473                         num = va_arg(args, size_t);

and all for the same type size_t

while here
./include/linux/ioport.h

      17 struct resource {
      18         resource_size_t start;
      19         resource_size_t end;
      20         const char *name;
      21         unsigned long flags;
      22         struct resource *parent, *sibling, *child;
      23 };

start & end are of type resource_size_t and not size_t.

I suppose that's why somewhere else upstream:
<http://www.linuxhq.com/kernel/v2.6/18/kernel/resource.c>

(still the same in 2.6.22.1), though.

Tx,
	Joel



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> /CAD/linux-2.6.22-pa/drivers/parisc/dino.c: In function dino_bridge_init:
> /CAD/linux-2.6.22-pa/drivers/parisc/dino.c:821: warning: format %lx expects type long unsigned int, but argument 4 has type 
> resource_size_t
> /CAD/linux-2.6.22-pa/drivers/parisc/dino.c:821: warning: format %lx expects type long unsigned int, but argument 5 has type 
> resource_size_t

Are you sure you changed line 821?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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is it worth trying to make vanilla glibc-2.6 work ?  once i fixed elf/elf.h=
 to=20
have all of the new PARISC defines, it cross-compiled fine for me ... or is=
=20
there more patches needed for runtime ?
=2Dmike

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On Thu, Jul 26, 2007 at 11:34:55PM +0200, aurel32 wrote:
> On Thu, Jul 26, 2007 at 05:13:07PM -0400, John David Anglin wrote:
> > > PIE's don't work on NPTL either, FWIW.
> > 
> > I did an apt-get upgrade today on one of my systems and noticed
> > that portmap is now segfaulting at the same spot as nscd (i.e.,
> > in _start).
> > 
> 
> portmap has been built against libc6-dev 2.5-9 while the PIE fixed
> appeared in libc6-dev 2.5-11...
> 
> So it need to be rebuilt.
> 

It should be fixed now (version 6.0-3).

-- 
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 : :' :  Debian developer           | Electrical Engineer
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On Saturday 28 July 2007, Carlos O'Donell wrote:
> On 7/28/07, Mike Frysinger <vapier@gentoo.org> wrote:
> > is it worth trying to make vanilla glibc-2.6 work ?  once i fixed
> > elf/elf.h to have all of the new PARISC defines, it cross-compiled fine
> > for me ... or is there more patches needed for runtime ?
>
> Yes, it is worth trying to make vanilla glibc-2.6 work.

ok, i'll start riding GMsoft ;)

> Note that because sometime compiles OK doesn't mean it actually
> functions. Did you have any test failures?

right, i wasnt proposing compile =3D=3D means life is great.  it's trivial =
for me=20
to cross-compile on my fast ppc64 machines (~15 minutes), i wanted to find=
=20
out the expected status before i go building it natively on a parisc box=20
(~many hours).

> My current set of libc and libc-ports patches:
> http://www.parisc-linux.org/~carlos/libc-2007-07-28.diff
> http://www.parisc-linux.org/~carlos/libc-ports-2007-07-28.diff
>
> My current set of unaudited failures:
> http://www.parisc-linux.org/~carlos/libc-error-2007-07-28.txt

thanks for the info
=2Dmike

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On Wednesday 25 July 2007, Matthew Wilcox wrote:
> I found a DAT today with the following contents on it.  Looks like it
> may have been a snapshot of the p-l ftp archive, possibly taken for
> transport to a show or something.  Anyone want to preserve these for
> historical purposes, or can I just write over this tape?

Maybe you could upload them somewhere to a "historical" directory on ftp.parisc-linux.org ?

Helge
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Hi Kurt,

On Wednesday 25 July 2007, kurtm22@netscape.net wrote:
> I did what you suggested and built a new kernel from scratch using the 2.6.22
> source tar.? I did not comment out the fb_memset() call in stifb.c
> prior to the build so I could post the crash results - perhaps
> it will provide more insight to what is going on:
> 
> sticon: Initializing sti text console
> Console: switching to colour STI console 160x64
> Backtrace:
> ??? [<1044e1b0>] stifb_init_fb+0x67c/0x928
> ??? [<1044e4c4>] stifb_init+0x68/0xf8
> ??? ? [<1043d4187>] kernel_init+0xfc/0x2c8
> ??? [<10109c5c>] ret_from_kernel_thread+0x1c/0x24
> 
> kernel fault:? code=15? regs=10984200? (addr=f9000000)
> 
> I can post more of the dump if you need it.? I left the machine 
> sitting there as i am writing down what I see on the screen.

code 15 means "Data TLB miss fault/Data page fault", so in fact it writes to memory it shouldn't, or in a way it shouldn't.
I still suspect the fb_memset() call.
Nevertheless, without more info, esp. where in the C-file/stifb_init_fb() function is 0x67c I can't do more.
Please read http://parisc-linux.org/faq/kernelbug-howto.html, esp. the section "More advanced bug reports".
It describes how to find the problematic code lines.
Alternatively, just comment out the fb_memset() call and try again.

Helge
_______________________________________________
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Subject: Re: Boot problem with HPPA 735/125 w/ A1439A CRX
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Hi Helge,

I commented out the fb_memset call 
in stifb.c and your suspicions were correct!? 
Not only did the kernel boot but I got the full
GUI login screen.?? When I upgraded from
Woody to Sarge, I also had no GUI so perhaps
this problem was in Sarge too.

Do you have any tests you would like me
to perform on this machine - it's just a hobby
machine for me. 

Thanks for the pointer to the kernel bug page.

Regards,
Kurt


 


 

-----Original Message-----
From: Helge Deller <deller@gmx.de>
To: kurtm22@netscape.net
Cc: parisc-linux@lists.parisc-linux.org
Sent: Sun, 29 Jul 2007 9:08 am
Subject: Re: Boot problem with HPPA 735/125 w/ A1439A CRX










Hi Kurt,

On Wednesday 25 July 2007, kurtm22@netscape.net wrote:
> I did what you suggested and built a new kernel from scratch using the 2.6.22
> source tar.? I did not comment out the fb_memset() call in stifb.c
> prior to the build so I could post the crash results - perhaps
> it will provide more insight to what is going on:
> 
> sticon: Initializing sti text console
> Console: switching to colour STI console 160x64
> Backtrace:
> ??? [<1044e1b0>] stifb_init_fb+0x67c/0x928
> ??? [<1044e4c4>] stifb_init+0x68/0xf8
> ??? ? [<1043d4187>] kernel_init+0xfc/0x2c8
> ??? [<10109c5c>] ret_from_kernel_thread+0x1c/0x24
> 
> kernel fault:? code=15? regs=10984200? (addr=f9000000)
> 
> I can post more of the dump if you need it.? I left the machine 
> sitting there as i am writing down what I see on the screen.

code 15 means "Data TLB miss fault/Data page fault", so in fact it writes to 
memory it shouldn't, or in a way it shouldn't.
I still suspect the fb_memset() call.
Nevertheless, without more info, esp. where in the C-file/stifb_init_fb() 
function is 0x67c I can't do more.
Please read http://parisc-linux.org/faq/kernelbug-howto.html, esp. the section 
"More advanced bug reports".
It describes how to find the problematic code lines.
Alternatively, just comment out the fb_memset() call and try again.

Helge



 


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<div> <br>
Hi Helge,<br>
<br>
I commented out the fb_memset call <br>
in stifb.c and your suspicions were correct!&nbsp; <br>
Not only did the kernel boot but I got the full<br>
GUI login screen.&nbsp;&nbsp; When I upgraded from<br>
Woody to Sarge, I also had no GUI so perhaps<br>
this problem was in Sarge too.<br>
<br>
Do you have any tests you would like me<br>
to perform on this machine - it's just a hobby<br>
machine for me. <br>
<br>
Thanks for the pointer to the kernel bug page.<br>
<br>
Regards,<br>
Kurt<br>
</div>

<div> <br>
</div>

<div> <br>
</div>
-----Original Message-----<br>
From: Helge Deller &lt;deller@gmx.de&gt;<br>
To: kurtm22@netscape.net<br>
Cc: parisc-linux@lists.parisc-linux.org<br>
Sent: Sun, 29 Jul 2007 9:08 am<br>
Subject: Re: Boot problem with HPPA 735/125 w/ A1439A CRX<br>
<br>






<div id="AOLMsgPart_0_fa16f12a-4251-4a40-b0da-e1334e3e9d9b" style="margin: 0px; font-family: Tahoma,Verdana,Arial,Sans-Serif; font-size: 12px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">

<pre style="font-size: 9pt;"><tt>Hi Kurt,<br>
<br>
On Wednesday 25 July 2007, <a href="mailto:kurtm22@netscape.net">kurtm22@netscape.net</a> wrote:<br>
&gt; I did what you suggested and built a new kernel from scratch using the 2.6.22<br>
&gt; source tar.? I did not comment out the fb_memset() call in stifb.c<br>
&gt; prior to the build so I could post the crash results - perhaps<br>
&gt; it will provide more insight to what is going on:<br>
&gt; <br>
&gt; sticon: Initializing sti text console<br>
&gt; Console: switching to colour STI console 160x64<br>
&gt; Backtrace:<br>
&gt; ??? [&lt;1044e1b0&gt;] stifb_init_fb+0x67c/0x928<br>
&gt; ??? [&lt;1044e4c4&gt;] stifb_init+0x68/0xf8<br>
&gt; ??? ? [&lt;1043d4187&gt;] kernel_init+0xfc/0x2c8<br>
&gt; ??? [&lt;10109c5c&gt;] ret_from_kernel_thread+0x1c/0x24<br>
&gt; <br>
&gt; kernel fault:? code=15? regs=10984200? (addr=f9000000)<br>
&gt; <br>
&gt; I can post more of the dump if you need it.? I left the machine <br>
&gt; sitting there as i am writing down what I see on the screen.<br>
<br>
code 15 means "Data TLB miss fault/Data page fault", so in fact it writes to <br>
memory it shouldn't, or in a way it shouldn't.<br>
I still suspect the fb_memset() call.<br>
Nevertheless, without more info, esp. where in the C-file/stifb_init_fb() <br>
function is 0x67c I can't do more.<br>
Please read <a href="http://parisc-linux.org/faq/kernelbug-howto.html" target="_blank">http://parisc-linux.org/faq/kernelbug-howto.html</a>, esp. the section <br>
"More advanced bug reports".<br>
It describes how to find the problematic code lines.<br>
Alternatively, just comment out the fb_memset() call and try again.<br>
<br>
Helge<br>
</tt></pre>
</div>
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Hi Kurt,

On Sunday 29 July 2007, kurtm22@netscape.net wrote:
> I commented out the fb_memset call 
> in stifb.c and your suspicions were correct!? 
> Not only did the kernel boot but I got the full
> GUI login screen.?? 

Great.

> When I upgraded from Woody to Sarge, I also had no GUI so perhaps
> this problem was in Sarge too.

Probably.

> Do you have any tests you would like me
> to perform on this machine - it's just a hobby
> machine for me. 

Yes, could you please try this patch ?
(please modify by hand, I just copy&pasted it here)

diff --git a/drivers/video/stifb.c b/drivers/video/stifb.c
@@ -512,7 +512,7 @@ rattlerSetupPlanes(struct stifb_info *fb)

-       fb_memset((void*)fb->info.fix.smem_start, 0xff,
+       memset(fb->info.screen_base, 0xff,
                fb->info.var.yres*fb->info.fix.line_length);

Is there any difference if you just comment out the fb_memset() call, or if you modify it like I showed in the patch above?
I'm wondering, if we should just delete the whole fb_memset() call.

Helge
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On Sunday 29 July 2007, Helge Deller wrote:
> Yes, could you please try this patch ?

Could you please try the attached patch instead.
This should be correct.

Thanks,
Helge

diff --git a/drivers/video/stifb.c b/drivers/video/stifb.c
index c97709e..6e5f138 100644
--- a/drivers/video/stifb.c
+++ b/drivers/video/stifb.c
@@ -505,16 +505,24 @@ ngleSetupAttrPlanes(struct stifb_info *fb, int BufferNumber)
 static void
 rattlerSetupPlanes(struct stifb_info *fb)
 {
+	int saved_id, y;
+
+ 	/* Write RAMDAC pixel read mask register so all overlay
+	 * planes are display-enabled.  (CRX24 uses Bt462 pixel
+	 * read mask register for overlay planes, not image planes).
+	 */
 	CRX24_SETUP_RAMDAC(fb);
     
-	/* replacement for: SETUP_FB(fb, CRX24_OVERLAY_PLANES); */
-	WRITE_WORD(0x83000300, fb, REG_14);
-	SETUP_HW(fb);
-	WRITE_BYTE(1, fb, REG_16b1);
+	/* change fb->id temporarily to fool SETUP_FB() */
+	saved_id = fb->id;
+	fb->id = CRX24_OVERLAY_PLANES;
+	SETUP_FB(fb);
+	fb->id = saved_id;
+
+	for (y = 0; y < fb->info.var.yres; ++y)
+		memset(fb->info.screen_base + y * fb->info.fix.line_length,
+			0xff, fb->info.var.xres * fb->info.var.bits_per_pixel/8);
 
-	fb_memset((void*)fb->info.fix.smem_start, 0xff,
-		fb->info.var.yres*fb->info.fix.line_length);
-    
 	CRX24_SET_OVLY_MASK(fb);
 	SETUP_FB(fb);
 }
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Subject: [parisc-linux] [PATCH] fix wrong cast in unwind_special()
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Xref: news.gmane.org gmane.linux.ports.parisc:24746

fix wrong cast in unwind_special():
arch/parisc/kernel/unwind.c: In function `unwind_special':
arch/parisc/kernel/unwind.c:213: warning: initialization makes pointer from integer without a cast

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index cf780cb..395433a 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -210,7 +210,7 @@ static int unwind_init(void)
 static int unwind_special(struct unwind_frame_info *info, unsigned long pc, int frame_size)
 {
 	void handle_interruption(int, struct pt_regs *);
-	static unsigned long *hi = (unsigned long)&handle_interruption;
+	static unsigned long *hi = (unsigned long *)&handle_interruption;
 
 	if (pc == get_func_addr(hi)) {
 		struct pt_regs *regs = (struct pt_regs *)(info->sp - frame_size - PT_SZ_ALGN);
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Subject: Re: [parisc-linux] Re: Boot problem with HPPA 735/125 w/ A1439A CRX
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> On Sunday 29 July 2007, Helge Deller wrote:
> > Yes, could you please try this patch ?
> 
> Could you please try the attached patch instead.
> This should be correct.

While we are on frame buffer issues, I'm still having troubles
with VisEG in c3750.  While the problems have changed with time,
X fails to start using either gdb or kdm.  It will start using
startx.

I had to disable AIGLX xorg.conf.  After doing this, there are no
errors in the gdb/kdm logs.  The only issue I see is the following
in the Xorg.0.log:

(II) Setting vga for screen 0.
(**) FBDEV(0): Depth 8, (--) framebuffer bpp 8
(==) FBDEV(0): Default visual is PseudoColor
(==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDEV(0): hardware: stifb (video memory: 2048kB)
(II) FBDEV(0): checking modes against framebuffer device...
(II) FBDEV(0):  mode "1280x1024" test failed
...

There seems to be an issue with mode "1280x1024".

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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Xref: news.gmane.org gmane.linux.ports.parisc:24748

On Sunday 29 July 2007, John David Anglin wrote:
> > On Sunday 29 July 2007, Helge Deller wrote:
> > > Yes, could you please try this patch ?
> > 
> > Could you please try the attached patch instead.
> > This should be correct.
> 
> While we are on frame buffer issues, I'm still having troubles
> with VisEG in c3750.  While the problems have changed with time,
> X fails to start using either gdb or kdm.  It will start using
> startx.
> 
> I had to disable AIGLX xorg.conf.  After doing this, there are no
> errors in the gdb/kdm logs.  The only issue I see is the following
> in the Xorg.0.log:
> 
> (II) Setting vga for screen 0.
> (**) FBDEV(0): Depth 8, (--) framebuffer bpp 8
> (==) FBDEV(0): Default visual is PseudoColor
> (==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
> (II) FBDEV(0): hardware: stifb (video memory: 2048kB)
> (II) FBDEV(0): checking modes against framebuffer device...
> (II) FBDEV(0):  mode "1280x1024" test failed
> ...
> 
> There seems to be an issue with mode "1280x1024".

Are you running your console in 1280x1024 as well, e.g. what does "fbset -i" reports ?
What makes me wonder is, that if "startx" works, what is the difference to "gdb/kdm" in respect to Xorg screen confifuration ??

Helge
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Subject: Re: [parisc-linux] Re: Boot problem with HPPA 735/125 w/ A1439A CRX
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> > There seems to be an issue with mode "1280x1024".
> 
> Are you running your console in 1280x1024 as well, e.g. what does "fbset -i" reports ?

Believe so.

mode "1280x1024"
    geometry 1280 1024 1280 1024 8
    timings 0 0 0 0 0 0 0
    rgba 8/0,8/0,8/0,0/0
endmode

Frame buffer device information:
    Name        : stifb
    Address     : 0xf9000000
    Size        : 2097152
    Type        : PACKED PIXELS
    Visual      : PSEUDOCOLOR
    XPanStep    : 0
    YPanStep    : 0
    YWrapStep   : 0
    LineLength  : 2048
    MMIO Address: 0xf8100000
    MMIO Size   : 4194304
    Accelerator : No

> What makes me wonder is, that if "startx" works, what is the difference to "gdb/kdm" in respect to Xorg screen confifuration ??

I looked at the gdm config and didn't see anything obvious.  It's the
default config.  In any case, gdm ends up running XKeepsCrashing.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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Subject: Re: [parisc-linux] Re: Boot problem with HPPA 735/125 w/ A1439A CRX
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On Sunday 29 July 2007, John David Anglin wrote:
> > > There seems to be an issue with mode "1280x1024".
> > 
> > Are you running your console in 1280x1024 as well, e.g. what does "fbset -i" reports ?
> 
> Believe so.
> 
> mode "1280x1024"
>     geometry 1280 1024 1280 1024 8
>     timings 0 0 0 0 0 0 0
>     rgba 8/0,8/0,8/0,0/0
> endmode
> 
> Frame buffer device information:
>     Name        : stifb
>     Address     : 0xf9000000
>     Size        : 2097152
>     Type        : PACKED PIXELS
>     Visual      : PSEUDOCOLOR
>     XPanStep    : 0
>     YPanStep    : 0
>     YWrapStep   : 0
>     LineLength  : 2048
>     MMIO Address: 0xf8100000
>     MMIO Size   : 4194304
>     Accelerator : No
> 
> > What makes me wonder is, that if "startx" works, what is the difference to "gdb/kdm" in respect to Xorg screen confifuration ??
> 
> I looked at the gdm config and didn't see anything obvious.  It's the
> default config.  In any case, gdm ends up running XKeepsCrashing.

So it crashes in userspace ony (and not the kernel). Any backtraces ?
Did you tried another resolution as well, e.g. 1024x768 ?

Helge
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Subject: Re: [parisc-linux] Re: Boot problem with HPPA 735/125 w/ A1439A CRX
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> So it crashes in userspace ony (and not the kernel). Any backtraces ?

Nothing.  It seems X just exits.  Hmmm, maybe I should set
NoTrapSignals and DisableVidModeExtension.

> Did you tried another resolution as well, e.g. 1024x768 ?

No, maybe later this week.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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Subject: Re: [parisc-linux] Re: Boot problem with HPPA 735/125 w/ A1439A CRX
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> > So it crashes in userspace ony (and not the kernel). Any backtraces ?
> 
> Nothing.  It seems X just exits.  Hmmm, maybe I should set
> NoTrapSignals and DisableVidModeExtension.

Didn't help.  I can get rid of the mode failure by commenting out the
Modes line in the Display subsection.  However, this doesn't fix the
problem.  The last lines in the Xorg log are:

...
(II) XINPUT: Adding extended input device "Configured Mouse" (type: MOUSE)
(II) XINPUT: Adding extended input device "Generic Keyboard" (type: KEYBOARD)
(II) Configured Mouse: ps2EnableDataReporting: succeeded
FreeFontPath: FPE "/usr/share/fonts/X11/misc" refcount is 2, should be 1; fixing.

There are no EEs or WWs in the log file.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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On 28/07/07, Mike Frysinger <vapier@gentoo.org> wrote:
> is it worth trying to make vanilla glibc-2.6 work ?  once i fixed elf/elf.h to
> have all of the new PARISC defines, it cross-compiled fine for me ... or is
> there more patches needed for runtime ?
> -mike

Ubuntu and Debian are now building glibc-2.6 for hppa, so in the event
of trouble, it's probably worth fishing through there for diffs.  On
Ubuntu hppa, I've got the same set of failures that Carlos reported.

(I'm travelling atm, sorry for any slow responses)

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/
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Subject: Re: [parisc-linux] Some warning: ... cleanup; realy no interest?
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Dave, Helge,

> > /CAD/linux-2.6.22-pa/drivers/parisc/dino.c: In function ?dino_bridge_=
init?:
> > /CAD/linux-2.6.22-pa/drivers/parisc/dino.c:821: warning: format %lx
expects type long unsigned int, but argument 4 has type 
> > resource_size_t
> > /CAD/linux-2.6.22-pa/drivers/parisc/dino.c:821: warning: format %lx
expects type long unsigned int, but argument 5 has type 
> > resource_size_t
> 
> Are you sure you changed line 821?
> 
Ah yes I missed this, sorry?

Ok it seems that [Zz] fix this warning for 32bit kernel but not 64bit one=
.

For another b2k config, I tried this change:
drivers/parisc/sba_iommu.c:

   1912         printk(KERN_INFO "%s found %s at 0x%zx\n",
   1913                 MODULE_NAME, version, dev->hpa.start);

and to build 32bit kernel there isn't anymore warning:

  gcc -Wp,-MD,drivers/parisc/.sba_iommu.o.d  -nostdinc -isystem
/usr/lib/gcc/hppa-linux-gnu/4.1.3/include -D__KERNEL__ -Iinclude -Iinclud=
e2
-I/CAD/linux-2.6.22-pa/
include -include include/linux/autoconf.h
-I/CAD/linux-2.6.22-pa/drivers/parisc -Idrivers/parisc -Wall -Wundef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-alias
ing -fno-common -O2 -pipe -mno-space-regs -mfast-indirect-calls
-mdisable-fpregs -ffunction-sections -march=3D1.1 -mschedule=3D7300
-fomit-frame-pointer -fno-stack-pro
tector -Wdeclaration-after-statement -Wno-pointer-sign  -D"KBUILD_STR(s)=3D=
#s"
-D"KBUILD_BASENAME=3DKBUILD_STR(sba_iommu)" 
-D"KBUILD_MODNAME=3DKBUILD_STR(sba_iommu)" -c
 -o drivers/parisc/.tmp_sba_iommu.o
/CAD/linux-2.6.22-pa/drivers/parisc/sba_iommu.c

but for the 64bit kernel build:

either with "z"
  hppa64-linux-gnu-gcc -Wp,-MD,drivers/parisc/.sba_iommu.o.d  -nostdinc
-isystem /usr/lib/gcc/hppa64-linux-gnu/4.1.3/include -D__KERNEL__ -Iinclu=
de
-Iinclude2 -I/C
AD/linux-2.6.22-pa/include -include include/linux/autoconf.h
-I/CAD/linux-2.6.22-pa/drivers/parisc -Idrivers/parisc -Wall -Wundef
-Wstrict-prototypes -Wno-trigraph
s -fno-strict-aliasing -fno-common -O2 -pipe -mno-space-regs
-mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=3D2.0
-mschedule=3D8000 -fomit-frame-poi
nter -fno-stack-protector -Wdeclaration-after-statement -Wno-pointer-sign=
 
-D"KBUILD_STR(s)=3D#s" -D"KBUILD_BASENAME=3DKBUILD_STR(sba_iommu)" 
-D"KBUILD_MODNAME=3DKBUILD
_STR(sba_iommu)" -c -o drivers/parisc/.tmp_sba_iommu.o
/CAD/linux-2.6.22-pa/drivers/parisc/sba_iommu.c
/CAD/linux-2.6.22-pa/drivers/parisc/sba_iommu.c: In function
'sba_driver_callback':
/CAD/linux-2.6.22-pa/drivers/parisc/sba_iommu.c:1913: warning: format '%z=
x'
expects type 'size_t', but argument 4 has type 'resource_size_t'

or with "Z":
  hppa64-linux-gnu-gcc -Wp,-MD,drivers/parisc/.sba_iommu.o.d  -nostdinc
-isystem /usr/lib/gcc/hppa64-linux-gnu/4.1.3/include -D__KERNEL__ -Iinclu=
de
-Iinclude2 -I/CAD/linux-2.6.22-pa/include -include include/linux/autoconf=
.h
-I/CAD/linux-2.6.22-pa/drivers/parisc -Idrivers/parisc -Wall -Wundef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -O2 -=
pipe
-mno-space-regs -mfast-indirect-calls -mdisable-fpregs -ffunction-section=
s
-march=3D2.0 -mschedule=3D8000 -fomit-frame-pointer -fno-stack-protector
-Wdeclaration-after-statement -Wno-pointer-sign  -D"KBUILD_STR(s)=3D#s"
-D"KBUILD_BASENAME=3DKBUILD_STR(sba_iommu)" 
-D"KBUILD_MODNAME=3DKBUILD_STR(sba_iommu)" -c -o drivers/parisc/.tmp_sba_=
iommu.o
/CAD/linux-2.6.22-pa/drivers/parisc/sba_iommu.c
/CAD/linux-2.6.22-pa/drivers/parisc/sba_iommu.c: In function
'sba_driver_callback':
/CAD/linux-2.6.22-pa/drivers/parisc/sba_iommu.c:1913: warning: format '%Z=
x'
expects type 'size_t', but argument 4 has type 'resource_size_t'

Even thought compilers seems to be of the same release:
# dpkg -l binutils\*
Desired=3DUnknown/Install/Remove/Purge/Hold
| Status=3DNot/Installed/Config-files/Unpacked/Failed-config/Half-install=
ed
|/ Err?=3D(none)/Hold/Reinst-required/X=3Dboth-problems (Status,Err: uppe=
rcase=3Dbad)
||/ Name                               Version                           =

Description
+++-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D-=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D
ii  binutils                           2.17cvs20070718-1                 =
 The
GNU assembler, linker and binary utilities
ii  binutils-doc                       2.17cvs20070718-1                 =

Documentation for the GNU assembler, linker and binary utilities
ii  binutils-hppa64                    2.17cvs20070718-1                 =
 The
GNU assembler, linker and binary utilities targeted for hppa64-linux

# dpkg -l gcc-4.1\*
Desired=3DUnknown/Install/Remove/Purge/Hold
| Status=3DNot/Installed/Config-files/Unpacked/Failed-config/Half-install=
ed
|/ Err?=3D(none)/Hold/Reinst-required/X=3Dboth-problems (Status,Err: uppe=
rcase=3Dbad)
||/ Name                               Version                           =

Description
+++-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D-=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D
ii  gcc-4.1                            4.1.2-14                          =
 The
GNU C compiler
ii  gcc-4.1-base                       4.1.2-14                          =
 The
GNU Compiler Collection (base package)
ii  gcc-4.1-doc                        4.1.1.nf3-1                       =

documentation for the GNU compilers (gcc, gobjc, g++)
ii  gcc-4.1-hppa64                     4.1.2-14                          =
 The
GNU C compiler (cross compiler for hppa64)

Tx,
    J.=0A---=0APack Scarlet One, ADSL 6 Mbps + Telephonie, a partir de EU=
R 29,95...=0Ahttp://www.scarlet.be/



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> > > /CAD/linux-2.6.22-pa/drivers/parisc/dino.c: In function ?dino_bridge_init?:
> > > /CAD/linux-2.6.22-pa/drivers/parisc/dino.c:821: warning: format %lx
> expects type long unsigned int, but argument 4 has type 
> > > resource_size_t
> > > /CAD/linux-2.6.22-pa/drivers/parisc/dino.c:821: warning: format %lx
> expects type long unsigned int, but argument 5 has type 
> > > resource_size_t

>>>From linux/types.h:

#ifdef CONFIG_RESOURCES_64BIT
typedef u64 resource_size_t;
#else
typedef u32 resource_size_t;
#endif

%lx looks right for parisc.  This is ugly but you can kill the warning
by casting arguments 4 and 5 to unsigned long.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Fri, Aug 03, 2007 at 11:16:08AM -0400, John David Anglin wrote:
> > > > /CAD/linux-2.6.22-pa/drivers/parisc/dino.c: In function ?dino_bridge_init?:
> > > > /CAD/linux-2.6.22-pa/drivers/parisc/dino.c:821: warning: format %lx
> > expects type long unsigned int, but argument 4 has type 
> > > > resource_size_t
> > > > /CAD/linux-2.6.22-pa/drivers/parisc/dino.c:821: warning: format %lx
> > expects type long unsigned int, but argument 5 has type 
> > > > resource_size_t
> 
> >From linux/types.h:
> 
> #ifdef CONFIG_RESOURCES_64BIT
> typedef u64 resource_size_t;
> #else
> typedef u32 resource_size_t;
> #endif
> 
> %lx looks right for parisc.  This is ugly but you can kill the warning
> by casting arguments 4 and 5 to unsigned long.
> 

We're "supposed" to use %llx and cast to a ULL, this is because of
CONFIG_RESOURCES_64BIT which is for crap architectures which have
32-bit registers, but the possibility of bigger physical addresses,
(think i386 with 36-bit PAE addressing.)

--Kyle
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From: Randolph Chung <randolph@tausq.org>
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Subject: [parisc-linux] [hppa patch] Fix register definitions for hppa
Date: Fri, 3 Aug 2007 17:06:46 +0000
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Should be self-explanatory. We came across this while debugging
TLS-enabled thread debugging on hppa-linux. GDB was not reading 
cr27 (hppa's thread register), so thread-debugging failed quite 
miserably :(

If there are no comments, I shall commit in a couple of days.

thanks,
randolph

2007-08-03  Randolph Chung  <tausq@debian.org>

	* hppa-tdep.c (hppa32_cannot_fetch_register)
	(hppa64_cannot_fetch_register): New functions.
	(hppa_gdbarch_init): Set cannot_fetch_register appropriately.
	* hppa-tdep.h (hppa_regnum): Add HPPA_CR26_REGNUM.

Index: hppa-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/hppa-tdep.c,v
retrieving revision 1.234
diff -u -p -r1.234 hppa-tdep.c
--- hppa-tdep.c	15 Jun 2007 22:44:55 -0000	1.234
+++ hppa-tdep.c	13 Jul 2007 16:26:29 -0000
@@ -2676,6 +2676,16 @@ hppa32_cannot_store_register (int regnum
 }
 
 static int
+hppa32_cannot_fetch_register (int regnum)
+{
+  /* cr26 and cr27 are readable (but not writable) from userspace.  */
+  if (regnum == HPPA_CR26_REGNUM || regnum == HPPA_CR27_REGNUM)
+    return 0;
+  else
+    return hppa32_cannot_store_register (regnum);
+}
+
+static int
 hppa64_cannot_store_register (int regnum)
 {
   return (regnum == 0
@@ -2684,6 +2694,16 @@ hppa64_cannot_store_register (int regnum
           || (regnum > HPPA_IPSW_REGNUM && regnum < HPPA64_FP4_REGNUM));
 }
 
+static int
+hppa64_cannot_fetch_register (int regnum)
+{
+  /* cr26 and cr27 are readable (but not writable) from userspace.  */
+  if (regnum == HPPA_CR26_REGNUM || regnum == HPPA_CR27_REGNUM)
+    return 0;
+  else
+    return hppa64_cannot_store_register (regnum);
+}
+
 static CORE_ADDR
 hppa_smash_text_address (CORE_ADDR addr)
 {
@@ -3076,7 +3096,7 @@ hppa_gdbarch_init (struct gdbarch_info i
 	set_gdbarch_cannot_store_register (gdbarch,
 					   hppa32_cannot_store_register);
 	set_gdbarch_cannot_fetch_register (gdbarch,
-					   hppa32_cannot_store_register);
+					   hppa32_cannot_fetch_register);
         break;
       case 8:
         set_gdbarch_num_regs (gdbarch, hppa64_num_regs);
@@ -3087,7 +3107,7 @@ hppa_gdbarch_init (struct gdbarch_info i
 	set_gdbarch_cannot_store_register (gdbarch,
 					   hppa64_cannot_store_register);
 	set_gdbarch_cannot_fetch_register (gdbarch,
-					   hppa64_cannot_store_register);
+					   hppa64_cannot_fetch_register);
         break;
       default:
         internal_error (__FILE__, __LINE__, _("Unsupported address size: %d"),
Index: hppa-tdep.h
===================================================================
RCS file: /cvs/src/src/gdb/hppa-tdep.h,v
retrieving revision 1.30
diff -u -p -r1.30 hppa-tdep.h
--- hppa-tdep.h	15 Jun 2007 22:44:55 -0000	1.30
+++ hppa-tdep.h	13 Jul 2007 16:26:29 -0000
@@ -59,6 +59,7 @@ enum hppa_regnum
   HPPA_PID3_REGNUM = 56,	/* Protection ID */
   HPPA_CCR_REGNUM = 54,		/* Coprocessor Configuration Register */
   HPPA_TR0_REGNUM = 57,		/* Temporary Registers (cr24 -> cr31) */
+  HPPA_CR26_REGNUM = 59,
   HPPA_CR27_REGNUM = 60,	/* Base register for thread-local storage, cr27 */
   HPPA_FP0_REGNUM = 64,		/* First floating-point.  */
   HPPA_FP4_REGNUM = 72,
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Subject: Re: [parisc-linux] [hppa patch] Fix register definitions for hppa
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> Isn't there a way we can teach gdb that cr27 is writable via this sequence?
> 
> e.g.
> static inline void __set_cr27(struct pthread *cr27)
> {
>   asm ( "ble    0xe0(%%sr2, %%r0)\n\t"
>         "copy   %0, %%r26"
>         : : "r" (cr27) : "r26" );
> }
> 
> At the very least please adjust the comment to say "cr27 is writable via
> a kernel helper function."
> 
> How does gdb read cr27? It must know how to use mfctl?

Remember that gdb is reading the cr27 of the debuggee, not of itself, so
__set_cr27 is irrelevant.

 From the architecture point of view, CR26 and CR27 are only readable
>from userspace, so gdb should not enable somebody to set them from
inside gdb.

GDB gets the value of cr26/cr27 the same way it gets the value of other
registers -- via ptrace or the register set returned in a core dump,
etc...

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Hello Kyle,

Some time ago, I discover your interesting snapshot tree:
<http://git.kernel.org/?p=3Dlinux/kernel/git/kyle/linux-2.6-snaps.git;a=3D=
summary>

Saying today:
[snip]
description: Daily git snapshots of Linus' tree 
owner: Kyle McMartin 
last change: Tue, 7 Aug 2007 01:31:43 +0000 
URL git://git.kernel.org/pub/scm/linux/kernel/git/kyle/linux-2.6-snaps.gi=
t 
 http://www.kernel.org/pub/scm/linux/kernel/git/kyle/linux-2.6-snaps.git =

[snip]

At home I can use git protocol and there is any pb to update my local tre=
e
with 'git-pull'

But at the office I can just use http protocol.
Here even thought I grab an initial tree with:
git-clone \
http://www.kernel.org/pub/scm/linux/kernel/git/kyle/linux-2.6-snaps.git \=

linux-2.6-snaps.git

some weeks ago, each time I try to update this local tree:
# git-pull  2>&1 | tee -a /var/logs/KyleSnapsGit26.log
Fetching refs/heads/master from
http://www.kernel.org/pub/scm/linux/kernel/git/kyle/linux-2.6-snaps.git u=
sing http
Already up-to-date.

While I'm sure there was updates.

Is there some known issue I missed about http protocol usage?

Tx,
    J.=0A---=0APack Scarlet One, ADSL 6 Mbps + Telephonie, a partir de EU=
R 29,95...=0Ahttp://www.scarlet.be/

_______________________________________________
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http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: [parisc-linux] Re: Git snaps pb with http?
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On Thu, Aug 09, 2007 at 10:10:53AM +0200, Joel Soete wrote:
> But at the office I can just use http protocol.
> Here even thought I grab an initial tree with:
> git-clone \
> http://www.kernel.org/pub/scm/linux/kernel/git/kyle/linux-2.6-snaps.git \
> linux-2.6-snaps.git
> 
> some weeks ago, each time I try to update this local tree:
> # git-pull  2>&1 | tee -a /var/logs/KyleSnapsGit26.log
> Fetching refs/heads/master from
> http://www.kernel.org/pub/scm/linux/kernel/git/kyle/linux-2.6-snaps.git using http
> Already up-to-date.
> 
> While I'm sure there was updates.
> 

Oh. It's autogenerated with a cronjob, possibly I should be running
git-update-server-info too.

btw, sorry all, I have been having severe motivation problems to do
anything these days...

Cheers,
	Kyle
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Subject: [parisc-linux] Git snaps pb with http?
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Xref: news.gmane.org gmane.linux.ports.parisc:24761

Hello Kyle,

Some time ago, I discover your interesting snapshot tree:
<http://git.kernel.org/?p=3Dlinux/kernel/git/kyle/linux-2.6-snaps.git;a=3D=
summary>

Saying today:
[snip]
description: Daily git snapshots of Linus' tree 
owner: Kyle McMartin 
last change: Tue, 7 Aug 2007 01:31:43 +0000 
URL git://git.kernel.org/pub/scm/linux/kernel/git/kyle/linux-2.6-snaps.gi=
t 
 http://www.kernel.org/pub/scm/linux/kernel/git/kyle/linux-2.6-snaps.git =

[snip]

At home I can use git protocol and there is any pb to update my local tre=
e
with 'git-pull'

But at the office I can just use http protocol.
Here even thought I grab an initial tree with:
git-clone \
http://www.kernel.org/pub/scm/linux/kernel/git/kyle/linux-2.6-snaps.git \=

linux-2.6-snaps.git

some weeks ago, each time I try to update this local tree:
# git-pull  2>&1 | tee -a /var/logs/KyleSnapsGit26.log
Fetching refs/heads/master from
http://www.kernel.org/pub/scm/linux/kernel/git/kyle/linux-2.6-snaps.git u=
sing http
Already up-to-date.

While I'm sure there was updates.

Is there some known issue I missed about http protocol usage?

Tx,
    J.=0A---=0APack Scarlet One, ADSL 6 Mbps + Telephonie, a partir de EU=
R 29,95...=0Ahttp://www.scarlet.be/

_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: [parisc-linux] preliminary strace patch
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I noticed, that strace was pretty much useless/broken, if you use shared memory/ipc calls or the stat64() syscall.

Example:
root@c3000:~# strace df -h / 
[....]
write(1, "Filesystem            Size  Used"..., 55Filesystem            Size  Used Avail Use% Mounted on
) = 55
upeek: ptrace(PTRACE_PEEKUSER,29538,4294967292,0): Input/output error

Below is a patch against strace-4.5.15 source package from sourceforge.
Maybe it's useful to some people here, although it's not cleaned up/correct at all yet.
Feedback/corrections (esp. for the new syscalls >= 295) are welcome, because I only focused on statfs64()/fstatfs64() at this moment.

Helge

--- ./linux/hppa/syscallent.h.org	2006-10-16 03:17:52.000000000 +0200
+++ ./linux/hppa/syscallent.h	2007-08-12 22:47:26.000000000 +0200
@@ -64,7 +64,7 @@
 	{ 4,	TN,	sys_socketpair,		"socketpair"		}, /* 56 */
 	{ 2,	0,	sys_setpgid,		"setpgid"		}, /* 57 */
 	{ 4,	TN,	sys_send,		"send"			}, /* 58 */
-	{ 1,	0,	sys_uname,		"newuname"			}, /* 59 */
+	{ 1,	0,	sys_uname,		"newuname"		}, /* 59 */
 	{ 1,	0,	sys_umask,		"umask"			}, /* 60 */
 	{ 1,	TF,	sys_chroot,		"chroot"		}, /* 61 */
 	{ 2,	0,	sys_ustat,		"ustat"			}, /* 62 */
@@ -222,7 +222,7 @@
 	{ 5,	0,	printargs,		"get_thread_area"	}, /* 214 */
 	{ 2,	0,	sys_io_setup,		"io_setup"		}, /* 215 */
 	{ 1,	0,	sys_io_destroy,		"io_destroy"		}, /* 216 */
-	{ 5,	0,	sys_io_getevents,		"io_getevents"		}, /* 217 */
+	{ 5,	0,	sys_io_getevents,	"io_getevents"		}, /* 217 */
 	{ 3,	0,	sys_io_submit,		"io_submit"		}, /* 218 */
 	{ 4,	0,	sys_io_cancel,		"io_cancel"		}, /* 219 */
 	{ 5,	0,	printargs,		"alloc_hugepages"	}, /* 220 */
@@ -233,11 +233,11 @@
 	{ 4,	TD,	sys_epoll_ctl,		"epoll_ctl"		}, /* 225 */
 	{ 4,	TD,	sys_epoll_wait,		"epoll_wait"		}, /* 226 */
 	{ 5,	0,	printargs,		"remap_file_pages"	}, /* 227 */
-       { 5,    TI,     sys_semtimedop,         "semtimedop"            }, /* 228 */
+	{ 5,    TI,     sys_semtimedop,         "semtimedop"		}, /* 228 */
 	{ 5,	0,	printargs,		"mq_open"		}, /* 229 */
 	{ 5,	0,	printargs,		"mq_unlink"		}, /* 230 */
 	{ 5,	0,	printargs,		"mq_timedsend"		}, /* 231 */
-	{ 5,	0,	printargs,		"mq_timedreceive"		}, /* 232 */
+	{ 5,	0,	printargs,		"mq_timedreceive"	}, /* 232 */
 	{ 5,	0,	printargs,		"mq_notify"		}, /* 233 */
 	{ 5,	0,	printargs,		"mq_getsetattr"		}, /* 234 */
 	{ 4,	0,	printargs,		"waitid"		}, /* 235 */
@@ -300,3 +300,13 @@
 	{ 4,	TD,	printargs,		"sync_file_range"	}, /* 292 */
 	{ 4,	TD,	printargs,		"tee"			}, /* 293 */
 	{ 4,	TD,	printargs,		"vmsplice"		}, /* 294 */
+	{ 4,	0,	printargs,		"move_pages"		}, /* 295 */
+	{ 4,	0,	printargs,		"getcpu"		}, /* 296 */
+	{ 4,	TD,	printargs,		"epoll_pwait"		}, /* 297 */
+	{ 3,	TF,	sys_statfs64,		"statfs64"		}, /* 298 */
+	{ 3,	TD,	sys_fstatfs64,		"fstatfs64"		}, /* 299 */
+	{ 5,	TP,	printargs,		"kexec_load"		}, /* 300 */
+	{ 5,	0,	printargs,		"utimensat"		}, /* 301 */
+	{ 5,	TD,	printargs,		"signalfd"		}, /* 302 */
+	{ 5,	TD,	printargs,		"timerfd"		}, /* 303 */
+	{ 5,	TD,	printargs,		"eventfd"		}, /* 304 */
--- ./ipc.c.org	2007-01-15 21:25:52.000000000 +0100
+++ ./ipc.c	2007-08-12 22:46:43.000000000 +0200
@@ -387,7 +387,7 @@
 		}
 		if (syserror(tcp))
 			return 0;
-#ifdef LINUX
+#if 0 && defined LINUX
 		if (umove(tcp, tcp->u_arg[2], &raddr) < 0)
 			return RVAL_NONE;
 		tcp->u_rval = raddr;

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Xref: news.gmane.org gmane.linux.ports.parisc:24763

On 8/12/07, Helge Deller <deller@gmx.de> wrote:
> I noticed, that strace was pretty much useless/broken, if you use shared memory/ipc calls or the stat64() syscall.
>
> Example:
> root@c3000:~# strace df -h /
> [....]
> write(1, "Filesystem            Size  Used"..., 55Filesystem            Size  Used Avail Use% Mounted on
> ) = 55
> upeek: ptrace(PTRACE_PEEKUSER,29538,4294967292,0): Input/output error
>
> Below is a patch against strace-4.5.15 source package from sourceforge.
> Maybe it's useful to some people here, although it's not cleaned up/correct at all yet.
> Feedback/corrections (esp. for the new syscalls >= 295) are welcome, because I only focused on statfs64()/fstatfs64() at this moment.

Helge,

That's awesome! Please send it upstream, even it they ignore you,
atleast the patch will appear in the archives. I'm sure debian would
take a half-clean patch against strace as long as it only effected
hppa.

Cheers,
Carlos.



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On Tuesday 14 August 2007, Carlos O'Donell wrote:
> > Below is a patch against strace-4.5.15 source package from sourceforge.
> > Maybe it's useful to some people here, although it's not cleaned up/correct at all yet.
> > Feedback/corrections (esp. for the new syscalls >= 295) are welcome, because I only focused on statfs64()/fstatfs64() at this moment.
> 
> That's awesome! Please send it upstream, even it they ignore you,
> atleast the patch will appear in the archives. I'm sure debian would
> take a half-clean patch against strace as long as it only effected
> hppa.

FYI - I've just submitted a more correct version of my patch upstream:

- upstream version of strace (syscall table patch):
http://sourceforge.net/tracker/index.php?func=detail&aid=1774308&group_id=2861&atid=302861

- upstream version of strace (shmat() syscall patch):
http://sourceforge.net/tracker/index.php?func=detail&aid=1774313&group_id=2861&atid=302861

- debian:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=437928

Helge
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On 8/14/07, Helge Deller <deller@gmx.de> wrote:
> FYI - I've just submitted a more correct version of my patch upstream:
>
> - upstream version of strace (syscall table patch):
> http://sourceforge.net/tracker/index.php?func=detail&aid=1774308&group_id=2861&atid=302861
>
> - upstream version of strace (shmat() syscall patch):
> http://sourceforge.net/tracker/index.php?func=detail&aid=1774313&group_id=2861&atid=302861
>
> - debian:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=437928

Awesome, that rocks. If there is anything I can do to help just tell me.

Cheers,
Carlos.



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http://ftp.kernel.org/pub/linux/kernel/people/kyle/parisc/2.6.23-rc3/2.6.23-rc3-pa1.diff.bz2

no changes aside from Makefile, forgot to release 2.6.23-rc1 back at the
beginning of the month. oops. not even build tested since i don't have
any machines powered on.

i've got a slew of stuff at various levels of polish to commit at some
point.

regards,
	kyle
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On Sat, Aug 25, 2007 at 05:29:17AM +0000, Joel Soete wrote:
> Hello Kyle,
> 
> I didn't test this patch but your linux-2.6-snaps.git (release 2.6.23-rc3-git5) and this boot fine on my b2k as 32bit built 
> kernel.
> 
> Great job ;<)
> 

Thanks, I've got a few patches that need to go in (getdents fix mostly)
but right now I'm tracking a null ptr dereference in the unwinder that
shows up on 64-bit SMP when udev starts.

(Of course, you don't need the getdents patch for 32-bit, so you should
be fine just running the -git snaps.)

Cheers,
	Kyle
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On Aug 26 2007 13:45, Mike Frysinger wrote:
>> can I rely on the same errno across Linuxes?
>
>nope
>
>> And should the errno values be fixed up?
>
>i guess that depends on whether you think it's even broken :)
>
>no spec requires any errno symbol have an exact numeric value ... i'm guessing 
>your FUSE is only cross-Linux and you're not planning on dipping into any 
>other OS ?

If the errnos are not the same in the Linux world, it's not even
cross-Linux ;-) - but it's always translated to fixed numbers now anyway.

I have not really thought about putting it in use on other systems yet. I
don't have macosx to test, and Windows generally lacks some fuses. :^)
You are free to spin it if you like, http://freshmeat.net/p/ccgfs/


	Jan
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This fixes a nullptr deref caused by udev just after userspace entry...
somehow. Bisected to commit to Makefile added build-id notes.

Cheers,
	Kyle

http://ftp.kernel.org/pub/linux/kernel/people/kyle/parisc/2.6.23-rc3/v2.6.23-rc3-pa2.diff.bz2

Changes since -pa1:
+parisc/add-notes-section.patch
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From: Rick Vernam <rickv@hobi.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] booting a 9000/785/C8000
Date: Fri, 31 Aug 2007 16:02:02 -0500
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Xref: news.gmane.org gmane.linux.ports.parisc:24770

I'm new to parisc (hppa) machines - never touched one before.
I'm trying to boot into linux so that i can do a simple
	dd if=/dev/null of=/dev/[hard drive]
I have about 25-30 machines to work on, so I'm looking for a rather clean 
solution :-)

I've tried both Gentoo's and Debian's hppa offerings, but am having the same 
problems on both (i've used gentoo x86/amd64 for years...):
1 - I can boot with 'console=tty0 sti=0/4/0/0' (as added by palo) and the boot 
process will stop with
	Console: colour dummy device 160x64
at this point, it is not hard locked - I can ctrl-alt-del to reboot.  it would 
probably sit there indefinitely - I did leave it for about 16-18 hours 
(running when I left work, still there the next day).
2 - I can boot without the 'console=tty0' and the kernel will load, but then 
fail when it can't find initial console (panic: kernel not syncing).

I've tried with both the AGP 8x Fire GL X1 that comes in the machine, and a 
PCI Rage XL of some sort.

The Gentoo kernel is 2.6.20 (most recent livecd, 2007.0), and debian's is also 
recent cd with 2.6.18 kernel.
In both cases, the complete kernel command line were pretty much the same 
(maybe they varied in looptype? ...and order of arguments)

TERM=linux root=/dev/ram0 init=/linuxrc cdroot looptype=normal 
loop=/image.loop hda=scsi hdb=scsi console=tty0 sti=/0/4/0/0 sti_font=VGA8x16 
palo_kernel=0/vmlinux

while it is doing whatever it does prior to when it can be stopped to specify 
a boot path (analogous to x86 post?) it does say something along the lines 
of:
	console device			graph3
						0/4/0/0.0
	current console device	graph3
						0/04/0/0.256

So, upon seeing that tried to set the sti= kernel arg to those values, but 
found the same results.

anybody, anything?
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From - Thu Nov 08 21:36:12 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.6.23-rc5 warnings
Date: Mon, 3 Sep 2007 18:45:02 -0400 (EDT)
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Some section mismatches in 64-bit kernel build:

WARNING: vmlinux.o(.text+0xb0): Section mismatch: reference to .init.text:start_
kernel (between '$pgt_fill_loop' and 'common_stext')
WARNING: vmlinux.o(.text+0xb4): Section mismatch: reference to .init.text:start_
kernel (between '$pgt_fill_loop' and 'common_stext')
WARNING: vmlinux.o(.text+0x290): Section mismatch: reference to .init.text:smp_c
allin (between 'smp_slave_stext' and 'flush_tlb_all_local')
WARNING: vmlinux.o(.text+0x294): Section mismatch: reference to .init.text:smp_c
allin (between 'smp_slave_stext' and 'flush_tlb_all_local')
WARNING: vmlinux.o(.text.write_profile+0x19c): Section mismatch: reference to .i
nit.text:setup_profiling_timer (after 'write_profile')

I think there was a warning about a missing syscall fallocate.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:36:12 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] 2.6.23-rc5 warnings
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Thumbs down on 2.6.23-rc5.  I had segmentation faults in tools like
'make' twice in a row.  Back to 2.6.22.6.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [parisc-linux] booting a 9000/785/C8000
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On Friday 31 August 2007, Rick Vernam wrote:
> I'm new to parisc (hppa) machines - never touched one before.
> I'm trying to boot into linux so that i can do a simple
> 	dd if=/dev/null of=/dev/[hard drive]
> I have about 25-30 machines to work on, so I'm looking for a rather clean 
> solution :-)
> 
> I've tried both Gentoo's and Debian's hppa offerings, but am having the same 
> problems on both (i've used gentoo x86/amd64 for years...):
> 1 - I can boot with 'console=tty0 sti=0/4/0/0' (as added by palo) and the boot 
> process will stop with
> 	Console: colour dummy device 160x64
> at this point, it is not hard locked - I can ctrl-alt-del to reboot.  it would 
> probably sit there indefinitely - I did leave it for about 16-18 hours 
> (running when I left work, still there the next day).
> 2 - I can boot without the 'console=tty0' and the kernel will load, but then 
> fail when it can't find initial console (panic: kernel not syncing).
> 
> I've tried with both the AGP 8x Fire GL X1 that comes in the machine, and a 
> PCI Rage XL of some sort.
> 
> The Gentoo kernel is 2.6.20 (most recent livecd, 2007.0), and debian's is also 
> recent cd with 2.6.18 kernel.
> In both cases, the complete kernel command line were pretty much the same 
> (maybe they varied in looptype? ...and order of arguments)
> 
> TERM=linux root=/dev/ram0 init=/linuxrc cdroot looptype=normal 
> loop=/image.loop hda=scsi hdb=scsi console=tty0 sti=/0/4/0/0 sti_font=VGA8x16 
> palo_kernel=0/vmlinux
> 
> while it is doing whatever it does prior to when it can be stopped to specify 
> a boot path (analogous to x86 post?) it does say something along the lines 
> of:
> 	console device			graph3
> 						0/4/0/0.0
> 	current console device	graph3
> 						0/04/0/0.256
> 
> So, upon seeing that tried to set the sti= kernel arg to those values, but 
> found the same results.
> 
> anybody, anything?

Yes.
Probably the reason is, that you are using unsupported graphic cards. 
Both, the Fire GL and the Rage XL are not supported, although maybe the Rage XL could be made working (if a developer will/can try).
Please see http://parisc-linux.org/faq/index.html#fxgfx  and  http://parisc-linux.org/faq/graphics-howto.html

Helge
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On Tuesday 04 September 2007, John David Anglin wrote:
> Some section mismatches in 64-bit kernel build:
> 
> WARNING: vmlinux.o(.text+0xb0): Section mismatch: reference to .init.text:start_
> kernel (between '$pgt_fill_loop' and 'common_stext')
> WARNING: vmlinux.o(.text+0xb4): Section mismatch: reference to .init.text:start_
> kernel (between '$pgt_fill_loop' and 'common_stext')
> WARNING: vmlinux.o(.text+0x290): Section mismatch: reference to .init.text:smp_c
> allin (between 'smp_slave_stext' and 'flush_tlb_all_local')
> WARNING: vmlinux.o(.text+0x294): Section mismatch: reference to .init.text:smp_c
> allin (between 'smp_slave_stext' and 'flush_tlb_all_local')
> WARNING: vmlinux.o(.text.write_profile+0x19c): Section mismatch: reference to .i
> nit.text:setup_profiling_timer (after 'write_profile')
> 
> I think there was a warning about a missing syscall fallocate.

The first two warnings are valid for 32bit as well. Reason is:
[head.S:122]		load32          start_kernel,%r11

fallocate() syscall is missing in 32bit too.

Helge

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With recent 64bit kernels linux32 seems to work,

$ linux32 uname -m
parisc

but

$ linux32 /usr/share/misc/config.guess
hppa2.0-unknown-linux-gnu

which seems to break some configury only knowing about hppa and
hppa64. Is config.guess correct, and should configure scripts be
changed?

  Matthias


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(please keep the parisc-linux list on CC).

On Tuesday 04 September 2007, Rick Vernam wrote:
> On Tuesday 04 September 2007 03:17:56 pm you wrote:
> > On Friday 31 August 2007, Rick Vernam wrote:
> > > I'm new to parisc (hppa) machines - never touched one before.
> > > I'm trying to boot into linux so that i can do a simple
> > > 	dd if=/dev/null of=/dev/[hard drive]
> > > I have about 25-30 machines to work on, so I'm looking for a rather clean
> > > solution :-)
> > >
> > > I've tried both Gentoo's and Debian's hppa offerings, but am having the
> > > same problems on both (i've used gentoo x86/amd64 for years...):
> > > 1 - I can boot with 'console=tty0 sti=0/4/0/0' (as added by palo) and the
> > > boot process will stop with
> > > 	Console: colour dummy device 160x64
> > > at this point, it is not hard locked - I can ctrl-alt-del to reboot.  it
> > > would probably sit there indefinitely - I did leave it for about 16-18
> > > hours (running when I left work, still there the next day).
> > > 2 - I can boot without the 'console=tty0' and the kernel will load, but
> > > then fail when it can't find initial console (panic: kernel not syncing).
> > >
> > > I've tried with both the AGP 8x Fire GL X1 that comes in the machine, and
> > > a PCI Rage XL of some sort.
> > >
> > > The Gentoo kernel is 2.6.20 (most recent livecd, 2007.0), and debian's is
> > > also recent cd with 2.6.18 kernel.
> > > In both cases, the complete kernel command line were pretty much the same
> > > (maybe they varied in looptype? ...and order of arguments)
> > >
> > > TERM=linux root=/dev/ram0 init=/linuxrc cdroot looptype=normal
> > > loop=/image.loop hda=scsi hdb=scsi console=tty0 sti=/0/4/0/0
> > > sti_font=VGA8x16 palo_kernel=0/vmlinux
> > >
> > > while it is doing whatever it does prior to when it can be stopped to
> > > specify a boot path (analogous to x86 post?) it does say something along
> > > the lines of:
> > > 	console device			graph3
> > > 						0/4/0/0.0
> > > 	current console device	graph3
> > > 						0/04/0/0.256
> > >
> > > So, upon seeing that tried to set the sti= kernel arg to those values,
> > > but found the same results.
> > >
> > > anybody, anything?
> >
> > Yes.
> > Probably the reason is, that you are using unsupported graphic cards.
> > Both, the Fire GL and the Rage XL are not supported, although maybe the
> > Rage XL could be made working (if a developer will/can try). Please see
> > http://parisc-linux.org/faq/index.html#fxgfx  and 
> > http://parisc-linux.org/faq/graphics-howto.html
> >
> > Helge
> 
> Well, The Fire GL X1 is the original card for the machine...and it boots HP-UX 
> just fine...
> I'm not looking even for framebuffer...nor will I be using X.
> I'd be happy with a non-framebuffered boot.
> Anything to get me to a shell.  (the machines have come in off-lease, and I 
> don't have root passwd for the existing HP-UX install).
> 
> Can I pass some kind of nofb kernel command line or something?

No, even "plain" text mode ("sticon") needs a driver, and the "STI" (Standard Text Interface) BIOS routines are not supported by the newer HP graphic cards.
Your only chance is to boot with serial cable and minicom (unplug keyboad/gfx cable):
http://parisc-linux.org/faq/index.html#serialcon

Helge
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Xref: news.gmane.org gmane.linux.ports.parisc:24777

Forwarding to parisc-linux mailing list.....

Can someone with MUX knowledge take a look into this problem ?
Additionally, does someone knows what this device is ?
> 12. unknown device at 0xf190c000 [10/4/12] { 2, 0x0, 0x004, 0x0005f }

Thanks,
Helge

On Tuesday 04 September 2007, Rob Sciuk wrote:
> On Tue, 4 Sep 2007, Helge Deller wrote:
> > On Wednesday 29 August 2007, Rob Sciuk wrote:
> >>> I'm having some difficulties with Debian 4.0R1 on an HP9000 Series
> >>> K200, also experienced similar behaviours with Sarge 3.1R6 and Debian
> >>> 4.0R0, where the install freezes/panics at the point at which it
> >>> states:
> >>>
> >>>   	Freeing unused kernel memory: 328K freed.
> >>>
> >>> The Gentoo 2007.0 release on the otherhand goes on to boot the full
> >>> live cd.  I'd very much like to run Debian, though I am just now
> >>> putting Gentoo on a 712/60, and I might resort to that for the K200.
> >>> Can you help me out here or provide pointers which can get me through
> >>> the boot process ??
> >
> > Hi Rob,
> > could you please post the full boot log (e.g. captured with minicom on serial port) ?
> > Helge
> 
> Full log is attached, captured with cu/tip on FreeBSD

Firmware Version  2.9

Duplex Console IO Dependent Code (IODC) revision 4

------------------------------------------------------------------------------
   (c) Copyright 1990-1998, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor State  Cache Size
  ---------  --------   ---------------------  -----------------  ----------

      0      100  MHz   Active                 Functional          256 KB
      1      100  MHz   Idle                   Functional          256 KB

  Central Bus Speed (in MHz)  :        100  
  Available Memory (bytes)    :  536870912  
  Good Memory Required (bytes):   19648512  


   Primary boot path:    10/0.6   (dec)
   Alternate boot path:  10/12/5.2   (dec)
   Console path:         10/4/0.0   (dec)
   Keyboard path:        10/12/7.0   (dec)

-------
Main Menu: Enter command or menu > boot alt
Booting... 
Boot IO Dependent Code (IODC) revision 0

HARD Booted.
palo ipl 1.14 root@duet Sat Apr  8 16:08:16 EDT 2006
Boot image contains:
    0/vmlinux32 4191629 bytes @ 0x3885800
    0/vmlinux64 5798357 bytes @ 0x32fd800
    0/ramdisk 4466902 bytes @ 0x2eb1800

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=/dev/ram ramdisk_size=12579' console=ttyB0 TERM=vt102 palo_kernel=0'0/vmlinux'
Selected kernel: '0/vmlinux from partition 0
Selected ramdisk: /ramdisk from partition 0
Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing 32-bit kernelELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 2392744 mediaptr 0x1000
Segment 1 load 00349000 size 499712 mediaptr 0x24a000
Segment 2 load 00400000 size 381062 mediaptr 0x2c4000
Loading ramdisk 4466902 bytes @ 1fbac000...

Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org


Linux version 2.6.18-5-parisc (Debian 2.6.18.dfsg.1-13) (dannf@debian.org) (gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 Fri Jun 1 00:54:09 UTC 2007
FP[0] enabled: Rev 1 Model 11
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 000058b0 00000491 00000000 00000002 40696e39 100000f1 00000004 0000008a 0000008a
vers  0000000d
CPUID vers 11 rev 13 (0x0000016d)
model 9000/819/K200
Total Memory: 512 MB
initrd: 2fbac000-2ffee8d6
initrd: reserving 1fbac000-1ffee8d6 (mem_max 20000000)
drivers/parisc/led.c: KittyHawk-Machine (hversion 0x58b) found, LED detection skipped.
LCD display at f0190000,f0190001 registered
Built 1 zonelists.  Total pages: 131072
Kernel command line: root=/dev/ram ramdisk_size=12579' console=ttyB0 TERM=vt102 palo_kernel=0'0/vmlinux
PID hash table entries: 4096 (order: 12, 16384 bytes)
start_kernel(): bug: interrupts were enabled early
Console: colour dummy device 160x64
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 524288k available
Security Framework v1.0.0 initialized
SELinux:  Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 512
checking if image is initramfs... it is
Freeing initrd memory: 4362k freed
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0x7, 0x580, 0x0000b }
2. KittyHawk GSY Core BA at 0xffd00000 [10/12] { 11, 0x0, 0x015, 0x00081 }, additional addresses: 0xffd0c000 0xffc00000 
3. KittyHawk GSY Core SCSI at 0xffd06000 [10/12/5] { 10, 0x0, 0x015, 0x00082 }
4. KittyHawk GSY Core LAN (802.3) at 0xffd07000 [10/12/6] { 10, 0x0, 0x015, 0x0008a }
5. KittyHawk GSY Core Centronics at 0xffd02000 [10/12/0] { 10, 0x0, 0x015, 0x00074 }, additional addresses: 0xffd01000 0xffd03000 
6. KittyHawk GSY Core PS/2 Port at 0xffd08000 [10/12/7] { 10, 0x0, 0x015, 0x00084 }
7. KittyHawk GSY Core PS/2 Port at 0xffd08100 [10/12/8] { 10, 0x0, 0x015, 0x00084 }
8. KittyHawk GSY Core FW-SCSI at 0xf1800000 [10/0] { 4, 0x1, 0x015, 0x00089 }
9. Gecko BOA BC GSC+ Port at 0xf1804000 [10/4] { 7, 0x0, 0x500, 0x0000c }
10. Eole CAP/MUX at 0xf1900000 [10/4/0] { 5, 0x0, 0x015, 0x0000d }
11. Wizard SCSI at 0xf1904000 [10/4/4] { 4, 0x0, 0x004, 0x0003b }
12. unknown device at 0xf190c000 [10/4/12] { 2, 0x0, 0x004, 0x0005f }

Helge: ^^^ huh ???

13. Gecko BOA BC HP-PB Port at 0xf193c000 [10/4/60] { 7, 0x0, 0x103, 0x0000c }
14. U2-IOA BC GSC+ Port at 0xf183f000 [10/63] { 7, 0x1, 0x501, 0x0000c }
15. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0x7, 0x580, 0x0000b }
16. U2-IOA BC GSC+ Port at 0xf103f000 [8/63] { 7, 0x1, 0x501, 0x0000c }
17. KittyHawk DC2 100 (K200) at 0xfffa0000 [32] { 0, 0x0, 0x58b, 0x00004 }
18. KittyHawk DC2 100 (K200) at 0xfffa2000 [34] { 0, 0x0, 0x58b, 0x00004 }
19. Memory at 0xfffb1000 [49] { 1, 0x0, 0x053, 0x00009 }
Enabling regular chassis codes support v0.05
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 34 failed with error 1

Helge: ^^^^???

CPU(s): 1 x PA7200 (PCX-T') at 100.000000 MHz
Setting cache flush threshold to 660 (1 CPUs online)
Found U2 at 0xfff8a000
Found U2 at 0xfff88000
Lasi version 0 at 0xffd00000 found.
Found GeckoBoa at 0xf1804000
NET: Registered protocol family 2
IP route cache hash table entries: 16384 (order: 4, 65536 bytes)
TCP established hash table entries: 65536 (order: 6, 262144 bytes)
TCP bind hash table entries: 32768 (order: 5, 131072 bytes)
TCP: Hash tables configured (established 65536 bind 32768)
TCP reno registered
Enabling PDC chassis warnings support v0.05
unwind_init: start = 0x1034acc0, end = 0x1036fa70, entries = 9435
audit: initializing netlink socket (disabled)
audit(1045223588.036:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
PDC Stable Storage facility v0.30
Soft power switch support not available.
STI GSC/PCI core graphics driver Version 0.9a
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
Serial mux driver (8 ports) Revision: 0.3
ttyB0 at MMIO 0xf1900800 (polled) is a Mux
ttyB1 at MMIO 0xf1900880 (polled) is a Mux
ttyB2 at MMIO 0xf1900900 (polled) is a Mux
ttyB3 at MMIO 0xf1900980 (polled) is a Mux
ttyB4 at MMIO 0xf1900a00 (polled) is a Mux
ttyB5 at MMIO 0xf1900a80 (polled) is a Mux
ttyB6 at MMIO 0xf1900b00 (polled) is a Mux
ttyB7 at MMIO 0xf1900b80 (polled) is a Mux
RAMDISK driver initialized: 16 RAM disks of 12579K size 1024 blocksize
serio: GSC PS/2 keyboard port at 0x00028000 irq 19 @ 10:12:7
serio: GSC PS/2 mouse port at 0x0002a100 irq 19 @ 10:12:8
mice: PS/2 mouse device common for all mice
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
Freeing unused kernel memory: 328k freed

FLT  0000Backtrace:
 [<1012f7ac>] run_timer_softirq+0x124/0x1bc
 [<1012b72c>] __do_softirq+0x58/0xc4
 [<10103f28>] __lock_text_end+0x38/0x48
 [<1010b068>] intr_return+0x0/0xc

Kernel Fault: Code=26 regs=2fd78600 (Addr=00000110)
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  0004ff0f 10370010 1012f7ac 103e7e84
r04-07  0000000d 00000000 00000000 00000000
r08-11  00000000 faf87e40 00000013 00000000
r12-15  00030c4c 00000008 00000007 1013d4e0
r16-19  2fd78240 103810b0 00000002 00000000
r20-23  0000f000 c1b32767 1026b740 3e4cd8aa
r24-27  0000002b 10383300 0000000d 10371010
r28-31  00002000 103d3010 2fd78600 1012f7ac
sr00-03  00000000 00000000 00000000 00000325
sr04-07  00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1026ba00 1026ba04
 IIR: 48b50220    ISR: 00000000  IOR: 00000110
 CPU:        0   CR30: 2fd78000 CR31: 10404000
 ORIG_R28: 2fb84200
 IAOQ[0]: mux_poll+0x2c0/0x2d4
 IAOQ[1]: mux_poll+0x2c4/0x2d4
 RP(r2): run_timer_softirq+0x124/0x1bc
Kernel panic - not syncing: Kernel Fault


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> With recent 64bit kernels linux32 seems to work,
> 
> $ linux32 uname -m
> parisc
> 
> but
> 
> $ linux32 /usr/share/misc/config.guess
> hppa2.0-unknown-linux-gnu
> 
> which seems to break some configury only knowing about hppa and
> hppa64. Is config.guess correct, and should configure scripts be
> changed?

GCC accepts either parisc or hppa, at least in config.gcc.  I tend
to think the parisc form should be deprecated since no other PA-RISC
targets use it.  The others all use hppa.

With respect to hppa variants, this is a hopeless mess and I don't
believe this can be fixed.  For example, libgmp treats hppa2.0w as
indicating a 64-bit runtime.  I'm sure you have hit this.

Nominally, the first part of the target string represents the
architecture of the kernel, and not the userspace architecture.
This is not sufficient to configure runtime applications when multiple
architectures are supported by one kernel.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Unknown device 0x0005f
Date: Tue, 4 Sep 2007 16:15:37 -0600
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To: Helge Deller <deller@gmx.de>
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On Tue, Sep 04, 2007 at 11:44:29PM +0200, Helge Deller wrote:
> Additionally, does someone knows what this device is ?
> > 12. unknown device at 0xf190c000 [10/4/12] { 2, 0x0, 0x004, 0x0005f }

I don't.  We don't have anything with the 0x0005f programming model in
the database.  We have:

        {HPHW_A_DMA, 0x004, 0x00050, 0x80, "Lanbrusca 802.3 (36967A)"}, 
        {HPHW_B_DMA, 0x008, 0x00051, 0x80, "HP-PB Transit 802.3"}, 
        {HPHW_B_DMA, 0x004, 0x00052, 0x80, "Miura LAN/Console (J2146A)"}, 
        {HPHW_A_DMA, 0x004, 0x00056, 0x80, "HP-PB LoQuix FDDI"}, 
        {HPHW_A_DMA, 0x004, 0x00057, 0x80, "HP-PB LoQuix FDDI (28670A)"}, 
        {HPHW_B_DMA, 0x008, 0x00058, 0x80, "HP-PB Transit 802.4"}, 
        {HPHW_A_DMA, 0x004, 0x0005E, 0x00, "Gecko Add-on Token Ring"}, 

The owner could probably help us out by taking a look at the card in
slot 10/4/12 and seeing what chips are on it, and what connectors it has.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."


-- 
To UNSUBSCRIBE, email to debian-hppa-REQUEST@lists.debian.org
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Subject: Re: [parisc-linux] crash in mux_poll on K200/Kittyhawk (was: Hardware-List (fwd))
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On Tue, Sep 04, 2007 at 11:44:29PM +0200, Helge Deller wrote:
> CONFIG_SMP=n  ignoring additional CPUs
> CPU: probe of 34 failed with error 1
> 
> Helge: ^^^^???

He's got a dual-CPU machine and has boted an SMP kernel.  So device 34
(the second CPU) gets an -EBUSY.

> Kernel Fault: Code=26 regs=2fd78600 (Addr=00000110)

Probably a null pointer offset ...

>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111 Not tainted
> r00-03  0004ff0f 10370010 1012f7ac 103e7e84
> r04-07  0000000d 00000000 00000000 00000000
> r08-11  00000000 faf87e40 00000013 00000000
> r12-15  00030c4c 00000008 00000007 1013d4e0
> r16-19  2fd78240 103810b0 00000002 00000000
> r20-23  0000f000 c1b32767 1026b740 3e4cd8aa
> r24-27  0000002b 10383300 0000000d 10371010
> r28-31  00002000 103d3010 2fd78600 1012f7ac
> sr00-03  00000000 00000000 00000000 00000325
> sr04-07  00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 1026ba00 1026ba04
>  IIR: 48b50220    ISR: 00000000  IOR: 00000110
>  CPU:        0   CR30: 2fd78000 CR31: 10404000
>  ORIG_R28: 2fb84200
>  IAOQ[0]: mux_poll+0x2c0/0x2d4
>  IAOQ[1]: mux_poll+0x2c4/0x2d4
>  RP(r2): run_timer_softirq+0x124/0x1bc
> Kernel panic - not syncing: Kernel Fault
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."


-- 
To UNSUBSCRIBE, email to debian-hppa-REQUEST@lists.debian.org
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From: Rob Sciuk <rob@controlq.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Unknown device 0x0005f
Date: Tue, 4 Sep 2007 19:56:23 -0400 (EDT)
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On Tue, 4 Sep 2007, Matthew Wilcox wrote:

> Date: Tue, 4 Sep 2007 16:15:37 -0600
> From: Matthew Wilcox <matthew@wil.cx>
> To: Helge Deller <deller@gmx.de>
> Cc: rob@controlq.com, parisc-linux@lists.parisc-linux.org,
>     debian-hppa@lists.debian.org
> Subject: Unknown device 0x0005f
> 
> On Tue, Sep 04, 2007 at 11:44:29PM +0200, Helge Deller wrote:
>> Additionally, does someone knows what this device is ?
>>> 12. unknown device at 0xf190c000 [10/4/12] { 2, 0x0, 0x004, 0x0005f }
>
> I don't.  We don't have anything with the 0x0005f programming model in
> the database.  We have:
>
>        {HPHW_A_DMA, 0x004, 0x00050, 0x80, "Lanbrusca 802.3 (36967A)"},
>        {HPHW_B_DMA, 0x008, 0x00051, 0x80, "HP-PB Transit 802.3"},
>        {HPHW_B_DMA, 0x004, 0x00052, 0x80, "Miura LAN/Console (J2146A)"},
>        {HPHW_A_DMA, 0x004, 0x00056, 0x80, "HP-PB LoQuix FDDI"},
>        {HPHW_A_DMA, 0x004, 0x00057, 0x80, "HP-PB LoQuix FDDI (28670A)"},
>        {HPHW_B_DMA, 0x008, 0x00058, 0x80, "HP-PB Transit 802.4"},
>        {HPHW_A_DMA, 0x004, 0x0005E, 0x00, "Gecko Add-on Token Ring"},
>
> The owner could probably help us out by taking a look at the card in
> slot 10/4/12 and seeing what chips are on it, and what connectors it has.

I can photograph it, if you like, how does one determine where slot 
10/4/12 is??  I know that there are a couple of mux boards on the back, 
but frankly I haven't opened up the box as of yet.  Pointers?

Cheers,
Rob.



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On Tue, 4 Sep 2007, Matthew Wilcox wrote:

> 
> On Tue, Sep 04, 2007 at 07:56:23PM -0400, Rob Sciuk wrote:
>>> The owner could probably help us out by taking a look at the card in
>>> slot 10/4/12 and seeing what chips are on it, and what connectors it has.
>>
>> I can photograph it, if you like, how does one determine where slot
>> 10/4/12 is??  I know that there are a couple of mux boards on the back,
>> but frankly I haven't opened up the box as of yet.  Pointers?
>
> It's been a few years since I looked at the back of a K-class, but I
> believe the path '10/4/12' is silk-screened onto the outside of the case
> below the slot in question.

The roadmap on the back of the K200 points to the I/O panel, and indeed, 
the 10/4/12 device appears to be a BNC connecter to the AUI for 10Base2 
network adapter (yes, I know, it is ancient -- but it was handy.  I'll 
make up a 10BT cable which can reach the box, and replace the "unknown 
device" with 10BT).  At this point, this unknown device is a red herring 
IMHO.

The problem persists, however, and it seems unrelated to the unknown 
device, which is now lying pathetic, and abandoned on the floor of my 
machine room -- cast into the dust!) and no longer is mentioned in the 
boot log -- the panic occurs at the same spot, after freeing memory.

Rob.


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Kyle McMartin wrote:
> On Fri, Aug 03, 2007 at 11:16:08AM -0400, John David Anglin wrote:
>>>>> /CAD/linux-2.6.22-pa/drivers/parisc/dino.c: In function ?dino_bridge_init?:
>>>>> /CAD/linux-2.6.22-pa/drivers/parisc/dino.c:821: warning: format %lx
>>> expects type long unsigned int, but argument 4 has type 
>>>>> resource_size_t
>>>>> /CAD/linux-2.6.22-pa/drivers/parisc/dino.c:821: warning: format %lx
>>> expects type long unsigned int, but argument 5 has type 
>>>>> resource_size_t
>> >From linux/types.h:
>>
>> #ifdef CONFIG_RESOURCES_64BIT
>> typedef u64 resource_size_t;
>> #else
>> typedef u32 resource_size_t;
>> #endif
>>
>> %lx looks right for parisc.  This is ugly but you can kill the warning
>> by casting arguments 4 and 5 to unsigned long.
>>
> 
> We're "supposed" to use %llx and cast to a ULL, this is because of
> CONFIG_RESOURCES_64BIT which is for crap architectures which have
> 32-bit registers, but the possibility of bigger physical addresses,
> (think i386 with 36-bit PAE addressing.)
> 
> --Kyle
> 
> 
mmm and what do you think about adding yet another format letter e.g. [rR] for resource_size_t as it was done for [zZ]?

Tia,
	j.
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On Wed, Sep 05, 2007 at 03:51:22PM +0000, Joel Soete wrote:
> mmm and what do you think about adding yet another format letter e.g. [rR] for resource_size_t as it was done for [zZ]?

You'd also have to teach gcc about it.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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On Tue, Sep 04, 2007 at 07:56:23PM -0400, Rob Sciuk wrote:
> >The owner could probably help us out by taking a look at the card in
> >slot 10/4/12 and seeing what chips are on it, and what connectors it has.
> 
> I can photograph it, if you like, how does one determine where slot 
> 10/4/12 is??  I know that there are a couple of mux boards on the back, 
> but frankly I haven't opened up the box as of yet.  Pointers?

It's been a few years since I looked at the back of a K-class, but I
believe the path '10/4/12' is silk-screened onto the outside of the case
below the slot in question.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."



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> > Nominally, the first part of the target string represents the
> > architecture of the kernel, and not the userspace architecture.
> > This is not sufficient to configure runtime applications when multiple
> > architectures are supported by one kernel.
> 
> i'm not terribly familiar with the breadth of the parisc family, but isnt
> 64bit only available with 2.0 ?  so it'd be pretty clean on Linux to say
> hppa64-*-linux-* means 64bit userland, everything else is 32bit

That's what is done now.  config.guess chooses between hppa64 and
32bit hppa variants based on the architecture of the compiler in use (CC).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] linux32 personality & config.guess
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On Thursday 06 September 2007, Thibaut VARENE wrote:
> On 9/6/07, Mike Frysinger <vapier@gentoo.org> wrote:
> > On Tuesday 04 September 2007, John David Anglin wrote:
> > > Nominally, the first part of the target string represents the
> > > architecture of the kernel, and not the userspace architecture.
> > > This is not sufficient to configure runtime applications when multiple
> > > architectures are supported by one kernel.
> >
> > i'm not terribly familiar with the breadth of the parisc family, but is=
nt
> > 64bit only available with 2.0 ?  so it'd be pretty clean on Linux to sa=
y:
> > hppa64-*-linux-* means 64bit userland, everything else is 32bit
>
> Seems you misunderstood jda's above comment. We do not have a 64bit
> userland on hppa. the 'hppa64' part of the target string represents
> the architecture of the /kernel/. 64bit kernels run a 32bit userland,
> hence hppa64-linux should be treated (so far) as hppa-linux.

i didnt misunderstand anything

i'm stating that an autotool based package should treat all hppa2.0 hosts a=
s=20
32bit userland which is exactly what gmp does not do
=2Dmike

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Subject: Re: [parisc-linux] linux32 personality & config.guess
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On Thursday 06 September 2007, Mike Frysinger wrote:
> On Thursday 06 September 2007, Thibaut VARENE wrote:
> > On 9/6/07, Mike Frysinger <vapier@gentoo.org> wrote:
> > > On Tuesday 04 September 2007, John David Anglin wrote:
> > > > Nominally, the first part of the target string represents the
> > > > architecture of the kernel, and not the userspace architecture.
> > > > This is not sufficient to configure runtime applications when
> > > > multiple architectures are supported by one kernel.
> > >
> > > i'm not terribly familiar with the breadth of the parisc family, but
> > > isnt 64bit only available with 2.0 ?  so it'd be pretty clean on Linux
> > > to say: hppa64-*-linux-* means 64bit userland, everything else is 32b=
it
> >
> > Seems you misunderstood jda's above comment. We do not have a 64bit
> > userland on hppa. the 'hppa64' part of the target string represents
> > the architecture of the /kernel/. 64bit kernels run a 32bit userland,
> > hence hppa64-linux should be treated (so far) as hppa-linux.
>
> i didnt misunderstand anything
>
> i'm stating that an autotool based package should treat all hppa2.0 hosts
> as 32bit userland which is exactly what gmp does not do

which is to say i've sort of forked the thread as i'm not talking about the=
=20
config.guess mis-guessing a 32bit userland under a 64bit kernel as hppa64 .=
=2E.
=2Dmike

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Subject: Re: [parisc-linux] linux32 personality & config.guess
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> i didnt misunderstand anything
> 
> i'm stating that an autotool based package should treat all hppa2.0 hosts as
> 32bit userland which is exactly what gmp does not do

Right.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] linux32 personality & config.guess
Date: Thu, 6 Sep 2007 16:33:00 -0400 (EDT)
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To: varenet@gmail.com (Thibaut VARENE)
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In-Reply-To: <7d01f9f00709061215q721df5b4wa7b8a0b96eaf491@mail.gmail.com> from
	"Thibaut VARENE" at Sep 6, 2007 09:15:48 pm
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> Seems you misunderstood jda's above comment. We do not have a 64bit
> userland on hppa. the 'hppa64' part of the target string represents
> the architecture of the /kernel/. 64bit kernels run a 32bit userland,
> hence hppa64-linux should be treated (so far) as hppa-linux.

No, the architecture portion of the string in the PA case doesn't
simply represent the architecture of the kernel.  In the hpux case,
hppa2.0w and hppa64 both indicate a wide PA 2.0 kernel.  As noted
in the previous message, config.guess selects between the two based
on the setting of CC.

This has arisen on the PA since we have separate 32 and 64 bit tools.
In other architectures, a compiler flag is used to select the output
architecture.

Although we don't have a 64-bit userland in linux, we do have 64-bit
compilation tools for kernel generation.  To build these, you need
to specify a hppa64-linux target.  For this reason, we don't treat
hppa64-linux as equivalent to hppa-linux.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] linux32 personality & config.guess
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Cc: debian-hppa@lists.debian.org,
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To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Thu, Sep 06, 2007 at 04:33:00PM -0400, John David Anglin wrote:
> This has arisen on the PA since we have separate 32 and 64 bit tools.
> In other architectures, a compiler flag is used to select the output
> architecture.

Any interest in doing the unification of 32 and 64-bit?  ISTR Jeff
Bailey had binutils working.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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From: "Jeff Bailey" <jbailey@raspberryginger.com>
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Subject: Re: [parisc-linux] linux32 personality & config.guess
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On 06/09/07, Matthew Wilcox <matthew@wil.cx> wrote:
> On Thu, Sep 06, 2007 at 04:33:00PM -0400, John David Anglin wrote:
> > This has arisen on the PA since we have separate 32 and 64 bit tools.
> > In other architectures, a compiler flag is used to select the output
> > architecture.
>
> Any interest in doing the unification of 32 and 64-bit?  ISTR Jeff
> Bailey had binutils working.

Give me another two weeks to dig myself out and take Grant up on the
hppa C3000 offer and I'll get that working again.

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/


-- 
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> On Thu, Sep 06, 2007 at 04:33:00PM -0400, John David Anglin wrote:
> > This has arisen on the PA since we have separate 32 and 64 bit tools.
> > In other architectures, a compiler flag is used to select the output
> > architecture.
> 
> Any interest in doing the unification of 32 and 64-bit?  ISTR Jeff
> Bailey had binutils working.

Not really.  Binutils is probably easier than GCC.  With the GCC,
the problem is macros that are defined in one case and not the
other.  The hard OS is hpux because 32-bit is SOM and 64-bit ELF.
Linux would be much easier because of the consistent runtime
architecture.

The reality is that a lot of work has been needed to keep up with
the rapid changes occuring in the middle of GCC and it has been
difficult to keep things from regressing.  For this to happen,
somebody else would have to do it.  Personally, I would rather
see work on the 64-bit linux userspace.

I must say though that I find the stability and reliability of
hppa-linux much better than it was a year or two ago.  I haven't 
had any crashes, even on SMP machines, with 2.6.22.x.  Applications
also seem to run reliably.  There is some issue with timeouts in
the GCC testsuite, particularly on 64-bit machines.  I think SMP
performance isn't great (e.g., 650 MHz running hpux beats 800 MHz
linux in GCC builds and checks).  Probably, this is the TLB flush
issue and why 2.6.23 is broken currently (Kyle's flush cleanup).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Joel Soete <soete.joel@scarlet.be>
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Subject: Re: [parisc-linux] Some warning: ... cleanup; realy no interest?
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Matthew Wilcox wrote:
> On Wed, Sep 05, 2007 at 03:51:22PM +0000, Joel Soete wrote:
>> mmm and what do you think about adding yet another format letter e.g. [rR] for resource_size_t as it was done for [zZ]?
> 
> You'd also have to teach gcc about it.
> 
What should I teach to gcc?

[zZ] format letter are for printk format size_t
[rR] would be equivalent for printk format resource_size_t

All size_t and resource_size_t are typedef?

Tx,
	j.



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Subject: Re: [parisc-linux] Some warning: ... cleanup; realy no interest?
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> Matthew Wilcox wrote:
> > On Wed, Sep 05, 2007 at 03:51:22PM +0000, Joel Soete wrote:
> >> mmm and what do you think about adding yet another format letter e.g. [rR] for resource_size_t as it was done for [zZ]?
> > 
> > You'd also have to teach gcc about it.
> > 
> What should I teach to gcc?

Don't try, it's a waste of effort.  Just do the cast to unsigned long long
as previously suggested.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)



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On Fri, Sep 07, 2007 at 12:50:25PM -0400, John David Anglin wrote:
> > Matthew Wilcox wrote:
> > > On Wed, Sep 05, 2007 at 03:51:22PM +0000, Joel Soete wrote:
> > >> mmm and what do you think about adding yet another format letter e.g. [rR] for resource_size_t as it was done for [zZ]?
> > > 
> > > You'd also have to teach gcc about it.
> > > 
> > What should I teach to gcc?
> 
> Don't try, it's a waste of effort.  Just do the cast to unsigned long long
> as previously suggested.
>

I'd rather do neither. Talking to Viro we've been thinking about
removing the format check attributes from the kernel and using sparse
instead, which is under a bit tighter control.

--Kyle



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On 9/6/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > On Thu, Sep 06, 2007 at 04:33:00PM -0400, John David Anglin wrote:
> The reality is that a lot of work has been needed to keep up with
> the rapid changes occuring in the middle of GCC and it has been
> difficult to keep things from regressing.  For this to happen,
> somebody else would have to do it.  Personally, I would rather
> see work on the 64-bit linux userspace.

The binutils unification was to give the 64-bit linker the ability to
have multiple stub sections, whose eventual goal waws to aid in the
development of a 64-bit linux userspace.

> I must say though that I find the stability and reliability of
> hppa-linux much better than it was a year or two ago.

Go cow power! Mooooooo!

Cheers,
Carlos.


-- 
To UNSUBSCRIBE, email to debian-hppa-REQUEST@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org



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Kyle McMartin wrote:
> On Fri, Sep 07, 2007 at 12:50:25PM -0400, John David Anglin wrote:
>>> Matthew Wilcox wrote:
>>>> On Wed, Sep 05, 2007 at 03:51:22PM +0000, Joel Soete wrote:
>>>>> mmm and what do you think about adding yet another format letter e.g. [rR] for resource_size_t as it was done for [zZ]?
>>>> You'd also have to teach gcc about it.
>>>>
>>> What should I teach to gcc?
>> Don't try, it's a waste of effort.  Just do the cast to unsigned long long
>> as previously suggested.
>>
> 
> I'd rather do neither. Talking to Viro we've been thinking about
> removing the format check attributes from the kernel and using sparse
> instead, which is under a bit tighter control.
> 
> --Kyle
> 
> 
Tx for feedback,
	j.



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From: LaMont Jones <lamont@mmjgroup.com>
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Subject: Re: [parisc-linux] linux32 personality & config.guess
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On Thu, Sep 06, 2007 at 03:11:37PM -0400, Mike Frysinger wrote:
> i'm not terribly familiar with the breadth of the parisc family, but isnt 
> 64bit only available with 2.0 ?  so it'd be pretty clean on Linux to say: 
> hppa64-*-linux-* means 64bit userland, everything else is 32bit

Also, with the current config.guess, personality is totally ignored in
favor of looking at the processor model in /proc/cpuinfo.  Not a good
answer.

lamont


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: Re: [parisc-linux] linux32 personality & config.guess
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> On Thu, Sep 06, 2007 at 03:11:37PM -0400, Mike Frysinger wrote:
> > i'm not terribly familiar with the breadth of the parisc family, but isnt 
> > 64bit only available with 2.0 ?  so it'd be pretty clean on Linux to say: 
> > hppa64-*-linux-* means 64bit userland, everything else is 32bit
> 
> Also, with the current config.guess, personality is totally ignored in
> favor of looking at the processor model in /proc/cpuinfo.  Not a good
> answer.

Probably, something similar to that done on hpux is needed.  However,
maybe this should wait until the toolchain merging issues are clear
for linux.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From - Thu Nov 08 21:36:14 2018
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From: Joel Soete <soete.joel@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] 2.6.23-rc5 warnings
Date: Tue, 11 Sep 2007 13:55:21 +0000
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Cc: parisc-linux@lists.parisc-linux.org,
 John David Anglin <dave@hiauly1.hia.nrc.ca>,
 Kyle McMartin <kyle@mcmartin.ca>
To: Helge Deller <deller@gmx.de>
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Hello Helge,

Helge Deller wrote:
> On Tuesday 04 September 2007, John David Anglin wrote:
>  > Some section mismatches in 64-bit kernel build:
>  >
>  > WARNING: vmlinux.o(.text+0xb0): Section mismatch: reference to 
> .init.text:start_
>  > kernel (between '$pgt_fill_loop' and 'common_stext')
>  > WARNING: vmlinux.o(.text+0xb4): Section mismatch: reference to 
> .init.text:start_
>  > kernel (between '$pgt_fill_loop' and 'common_stext')
>  > WARNING: vmlinux.o(.text+0x290): Section mismatch: reference to 
> .init.text:smp_c
>  > allin (between 'smp_slave_stext' and 'flush_tlb_all_local')
>  > WARNING: vmlinux.o(.text+0x294): Section mismatch: reference to 
> .init.text:smp_c
>  > allin (between 'smp_slave_stext' and 'flush_tlb_all_local')
>  > WARNING: vmlinux.o(.text.write_profile+0x19c): Section mismatch: 
> reference to .i
>  > nit.text:setup_profiling_timer (after 'write_profile')
>  >
>  > I think there was a warning about a missing syscall fallocate.
> 
> The first two warnings are valid for 32bit as well. Reason is:
> [head.S:122]        load32          start_kernel,%r11
> 
> fallocate() syscall is missing in 32bit too.
> 
> Helge
> 
> 
So is it what we would need (I am always in doubt when _COMP and _SAME have to be used):
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 2540786..117438e 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -403,6 +403,7 @@
         ENTRY_COMP(signalfd)
         ENTRY_COMP(timerfd)
         ENTRY_SAME(eventfd)
+       ENTRY_COMP(fallocate)           /* 305 */

         /* Nothing yet */

diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
index f74099b..081b4ae 100644
--- a/include/asm-parisc/unistd.h
+++ b/include/asm-parisc/unistd.h
@@ -797,8 +797,9 @@
  #define __NR_signalfd          (__NR_Linux + 302)
  #define __NR_timerfd           (__NR_Linux + 303)
  #define __NR_eventfd           (__NR_Linux + 304)
+#define __NR_fallocate         (__NR_Linux + 305)

-#define __NR_Linux_syscalls    (__NR_eventfd + 1)
+#define __NR_Linux_syscalls    (__NR_fallocate + 1)


  #define __IGNORE_select                /* newselect */
=== <> ===

Tx,
	J.



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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [parisc-linux] 2.6.23-rc5 warnings
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Cc: Helge Deller <deller@gmx.de>,
 parisc-linux@lists.parisc-linux.org,
 John David Anglin <dave@hiauly1.hia.nrc.ca>
To: Joel Soete <soete.joel@scarlet.be>
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On Tue, Sep 11, 2007 at 01:55:21PM +0000, Joel Soete wrote:
> +       ENTRY_COMP(fallocate)           /* 305 */

I have this fixed on the Apple laptop I travel with, but won't be able
to push it out until I get home. I'll release a -rcX-pa1 on Sunday when
I'm back in Ottawa.

Cheers,
	Kyle



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From: Joel Soete <soete.joel@scarlet.be>
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Subject: Re: [parisc-linux] 2.6.23-rc5 warnings
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Cc: Helge Deller <deller@gmx.de>,
 parisc-linux@lists.parisc-linux.org,
 John David Anglin <dave@hiauly1.hia.nrc.ca>
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Kyle McMartin wrote:
> On Tue, Sep 11, 2007 at 01:55:21PM +0000, Joel Soete wrote:
>> +       ENTRY_COMP(fallocate)           /* 305 */
> 
> I have this fixed on the Apple laptop I travel with, but won't be able
> to push it out until I get home. I'll release a -rcX-pa1 on Sunday when
> I'm back in Ottawa.
> 
No pb.

Have a nice travel,
	J.

> Cheers,
> 	Kyle
> 
> 



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John David Anglin writes:
> believe this can be fixed.  For example, libgmp treats hppa2.0w as
> indicating a 64-bit runtime.  I'm sure you have hit this.

no python's internal copy of libffi :)
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On Tuesday 04 September 2007, John David Anglin wrote:
> With respect to hppa variants, this is a hopeless mess and I don't
> believe this can be fixed.  For example, libgmp treats hppa2.0w as
> indicating a 64-bit runtime.  I'm sure you have hit this.

i think gmp is just plain broken in this respect

> Nominally, the first part of the target string represents the
> architecture of the kernel, and not the userspace architecture.
> This is not sufficient to configure runtime applications when multiple
> architectures are supported by one kernel.

i'm not terribly familiar with the breadth of the parisc family, but isnt=20
64bit only available with 2.0 ?  so it'd be pretty clean on Linux to say:=20
hppa64-*-linux-* means 64bit userland, everything else is 32bit
=2Dmike

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I just posted this mail to parisc-linux@lists.parisc-linux.org, because
I thought I was on the list because of a crosspost on debian-hppa...
Sorry if that caused any inconvenience.


###############
Hi,

I have asked some questions about linux on a hp9000/889/k460 in march
2006, when I wasn't able to boot neither debian nor gentoo on it. Now I
have some time again, and I am again trying to get the machine working,
together with a friend.

We were now able to boot the latest gentoo liveCD, but we can not
install any system, because our harddisk/s is/are not recognized. there
seems to be some scsi problem. I am not too used to scsi, so maybe those
questions sound stupid to you.

The problem is the following: sometime when we were first able to boot,
we disconnected the internal 2GB scsi disk, I forgot about the exact
reason. When plugging it in again, we apparently broke the plug, so we
can not use that disk anymore. we have to scsi disks, 4 and 9GB, but I
guess, the original disk was wide scsi, and the new ones are ultra wide
or something. the plug matches, but they are definitely more modern.

We have figured out, that the disks don't even spin up if we do not
enable term power with a jumper. But whatever else we enable/disable,
there are the following messages in dmesg:

ncr53c720-3: FATAL ERROR: CHECK SCSI BUS - CABLES, TERMINATION, DEVICE
POWER etc.!

I have attached the related part of dmesg.

Could someone tell me, where our problem is, how we can get those disks
to work, or any other way to finally get something installed on that
machine?

We have two hp disk towers attached to the machine, but they are not
recognized, and we have a BA350, but they are all not connected to the
main unit, but to extension cards, so I don't think we'll be able to use
them as boot media.

And how is it possible, that such an old machine loads modules for USB
storage at boot up? I haven't found any USB ports...  ;-)

cu
Dieter

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 filename="hp1"

zalon_probe: Zalon version 1, IRQ 66
ncr53c720-0: rev 0xf irq 66
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential
scsi0 : ncr53c8xx-3.4.3g
zalon_probe: Zalon version 1, IRQ 67
ncr53c720-1: rev 0xf irq 67
ncr53c720-1: ID 7, Fast-10, Parity Checking, Differential
scsi1 : ncr53c8xx-3.4.3g
zalon_probe: Zalon version 1, IRQ 68
ncr53c720-2: rev 0xf irq 68
ncr53c720-2: ID 7, Fast-10, Parity Checking, Differential
scsi2 : ncr53c8xx-3.4.3g
zalon_probe: Zalon version 1, IRQ 69
ncr53c720-3: rev 0xf irq 69
ncr53c720-3: ID 7, Fast-10, Parity Checking, Differential
ncr53c720-3: suspicious SCSI data while resetting the BUS.
ncr53c720-3: dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,atn,msg,c/d,i/o = 0x20120, expecting 0x100
ncr53c720-3: FATAL ERROR: CHECK SCSI BUS - CABLES, TERMINATION, DEVICE POWER etc.!
ncr53c720-3: detaching...
zalon_probe: Zalon version 1, IRQ 69
ncr53c720-3: rev 0xf irq 69
ncr53c720-3: ID 7, Fast-10, Parity Checking, Differential
scsi4 : ncr53c8xx-3.4.3g
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi5: 53c710 rev 2
scsi5 : LASI SCSI 53c700
scsi 5:0:2:0: CD-ROM            TOSHIBA  CD-ROM XM-4101TA 1084 PQ: 0 ANSI: 2
 target5:0:2: Beginning Domain Validation
 target5:0:2: asynchronous
 target5:0:2: FAST-5 SCSI 4.2 MB/s ST (236 ns, offset 8)
 target5:0:2: Domain Validation skipping write tests
 target5:0:2: Ending Domain Validation

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On 9/6/07, Mike Frysinger <vapier@gentoo.org> wrote:
> On Tuesday 04 September 2007, John David Anglin wrote:

> > Nominally, the first part of the target string represents the
> > architecture of the kernel, and not the userspace architecture.
> > This is not sufficient to configure runtime applications when multiple
> > architectures are supported by one kernel.
>
> i'm not terribly familiar with the breadth of the parisc family, but isnt
> 64bit only available with 2.0 ?  so it'd be pretty clean on Linux to say:
> hppa64-*-linux-* means 64bit userland, everything else is 32bit

Seems you misunderstood jda's above comment. We do not have a 64bit
userland on hppa. the 'hppa64' part of the target string represents
the architecture of the /kernel/. 64bit kernels run a 32bit userland,
hence hppa64-linux should be treated (so far) as hppa-linux.

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/


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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
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Subject: [parisc-linux] pthread_attr_getstack(): SEGV using ptr stack_addr -
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Xref: news.gmane.org gmane.linux.ports.parisc:24808

Carlos,

We have a problem with libjava.  The details are here:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33442

The problem seems to be pthread_attr_getstack.  It looks like
we aren't rounding the returned stack_addr value correctly to
ensure that stack_addr - stack_size is equal to or larger than
the stack base for a thread.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] pthread_attr_getstack(): SEGV using ptr
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On 9/15/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> Carlos,
>
> We have a problem with libjava.  The details are here:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33442
>
> The problem seems to be pthread_attr_getstack.  It looks like
> we aren't rounding the returned stack_addr value correctly to
> ensure that stack_addr - stack_size is equal to or larger than
> the stack base for a thread.

I will look into this. Thanks Dave. Would you like a patch against the
current debian glibc? The  patch I checkin upstream won't be much use
for you :-)

Cheers,
Carlos.
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Subject: Re: [parisc-linux] pthread_attr_getstack(): SEGV using ptr
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> I will look into this. Thanks Dave. Would you like a patch against the
> current debian glibc? The  patch I checkin upstream won't be much use
> for you :-)

Yes, please.

Something changed a couple of days ago to trigger this.  There might
be a kernel issue.  The two systems that I'm seeing this on are running
2.6.22.6.  gsyprf11 running 2.6.22.1 seems unaffected so far.  However,
the problem appeared sometime after updating to 2.6.22.6.  All systems
are running debian lenny.

Thanks,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: "Jeff Bailey" <jbailey@raspberryginger.com>
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Here's a first attempt at making an exported header for parisc, can
folks please look it over and tell me what other sorts of things I
should look for in cleaning a header up?

In this particular case, this is a header that has been cached inside
palo.  I've wrapped things that were in #ifndef __ASSEMBLER__ also in
#ifdef __KERNEL__ so that they don't get exported.  The exceptions
were things that palo was actually using.

Also, given that I don't use git that often, if there's something I
should be doing other than git diff and attaching the file, please let
me know. =)

-- 
Jeff Bailey - http://www.raspberryginger.com/jbailey/

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From: Berthold Gunreben <b.gunreben@web.de>
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Subject: [parisc-linux] IBM GXT6000P on parisc linux
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Xref: news.gmane.org gmane.linux.ports.parisc:24812

Hi,

I got a used HP parisc workstation, and found a GXT6000P video card in 
there. The card was detected and initialized by the firmware of this machine 
(a C3750). I just wanted to give it a try and compiled a module gxt4500 to 
try this card. Here are my results:

o The module builds  without errors after adding PARISC to Kconfig for this 
module
o when loading the module, dmesg contains this:
  Console: switching to colour frame buffer device 160x64
  fb0: IBM GXT6000P frame buffer device
o fbset -i gives me the following output:
mode "1280x1024-60"
    # D: 107.504 MHz, H: 63.687 kHz, V: 59.744 Hz
    geometry 1280 1024 1280 1024 8
    timings 9302 248 48 38 1 112 3
    nonstd 304384
    accel true
    rgba 8/0,8/0,8/0,0/0
endmode

Frame buffer device information:
    Name        : IBM GXT6000P
    Address     : 0xf8000000
    Size        : 67108864
    Type        : PACKED PIXELS
    Visual      : PSEUDOCOLOR
    XPanStep    : 8
    YPanStep    : 1
    YWrapStep   : 0
    LineLength  : 2048
    MMIO Address: 0xf7000000
    MMIO Size   : 131072
    Accelerator : No

o I manually configured Xorg, and the fbdev X-Server seems to come up 
(according to the X messages).

However - the monitor stays in powersave mode, and no signal reaches the 
monitor, neither in text mode (console) nor in X11 mode. For some reason, the 
interrupt for this device (according to lspci it is IRQ 70) does not appear 
in /proc/interrupts, but I don't know if this is even necessary for this 
driver.

lspci -vn gives me the following for this card:
03:02.0 Class 0300: 1014:0170 (rev 02) (prog-if 00 [VGA])
        Subsystem: 1092:0173
        Flags: bus master, 66MHz, medium devsel, latency 255, IRQ 70
        Memory at f7000000 (32-bit, non-prefetchable) [size=128K]
        Memory at f8000000 (32-bit, non-prefetchable) [size=64M]
        Expansion ROM at f7040000 [disabled] [size=256K]

If anybody wants to see the log about X coming up, I can send this too, I just 
did not want to send them to the list.

If someone got a hint about how to fix this problem, this would be great.

Thanks

Berthold
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] IBM GXT6000P on parisc linux
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On Fri, Sep 21, 2007 at 07:49:21PM +0200, Berthold Gunreben wrote:
> Hi,
> 
> I got a used HP parisc workstation, and found a GXT6000P video card in 
> there. The card was detected and initialized by the firmware of this machine 
> (a C3750).

wow..that's odd. I didn't see any web page which shows HP ever
supported GXT6000P with HPUX. I suspect someone sold you the wrong card.
Can you explain in more detail what you mean with "detected and initialized
by the firmware"?

I suspect magic BIOS code isn't getting run. (It _might_ run under
a C8000 but I don't expect it to work).

>  I just wanted to give it a try and compiled a module gxt4500 to 
> try this card. Here are my results:
> 
> o The module builds  without errors after adding PARISC to Kconfig for this 
> module
> o when loading the module, dmesg contains this:
>   Console: switching to colour frame buffer device 160x64
>   fb0: IBM GXT6000P frame buffer device

Ok. that's good.

...
> However - the monitor stays in powersave mode, and no signal reaches the 
> monitor, neither in text mode (console) nor in X11 mode. For some reason, the 
> interrupt for this device (according to lspci it is IRQ 70) does not appear 
> in /proc/interrupts, but I don't know if this is even necessary for this 
> driver.
> 
> lspci -vn gives me the following for this card:
> 03:02.0 Class 0300: 1014:0170 (rev 02) (prog-if 00 [VGA])
>         Subsystem: 1092:0173
>         Flags: bus master, 66MHz, medium devsel, latency 255, IRQ 70
>         Memory at f7000000 (32-bit, non-prefetchable) [size=128K]
>         Memory at f8000000 (32-bit, non-prefetchable) [size=64M]
>         Expansion ROM at f7040000 [disabled] [size=256K]

You can determine if it's necessary by looking at the driver source code.
Try to find where it registers the IRQ handler with request_irq().
Sounds like either it doesn't or it can't (but should print something
to dmesg buffer in that case).

hth,
grant
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Am Sonntag, 30. September 2007 21:35 schrieb Grant Grundler:
> On Fri, Sep 21, 2007 at 07:49:21PM +0200, Berthold Gunreben wrote:
> > Hi,
> >
> > I got a used HP parisc workstation, and found a GXT6000P video card in
> > there. The card was detected and initialized by the firmware of this
> > machine (a C3750).
>
> wow..that's odd. I didn't see any web page which shows HP ever
> supported GXT6000P with HPUX. I suspect someone sold you the wrong card.
> Can you explain in more detail what you mean with "detected and initialized
> by the firmware"?
>
> I suspect magic BIOS code isn't getting run. (It _might_ run under
> a C8000 but I don't expect it to work).

Well, what can I say. The workstation boots up and displays the usual firmware 
messages like press Tab to choose resolution (only 640x480 seems to be 
supported at that stage) and I can also enter commands at this console. The 
card does not seem to be wrong in this respect.

After booting linux, the messages of the kernel are displayed until the 
console switches:

console handover: boot [ttyB0] -> real [tty0]

Then it takes some more seconds, until the display goes dark and I was not yet 
successful in bringing it to life again.

> You can determine if it's necessary by looking at the driver source code.
> Try to find where it registers the IRQ handler with request_irq().
> Sounds like either it doesn't or it can't (but should print something
> to dmesg buffer in that case).

The driver has no occurence of irq, and it only handles framebuffer (normally, 
this card also should have 3D capabilities. It looks like it just does not 
need IRQs.

It looks like the card is switched off by using 
pdc_cons.flags &= ~CON_PRINTBUFFER

At least if I comment this line, booting continues with messages until some 
point where the machine just hangs. 

I am sorry, that I did not post more information in the first place, but I 
don't have much experience with graphics on parisc-linux ... 

Thanks for your efforts anyway.

Berthold
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Xref: news.gmane.org gmane.linux.ports.parisc:24815

On Sun September 30 2007 15:22, Berthold Gunreben wrote:
> Am Sonntag, 30. September 2007 21:35 schrieb Grant Grundler:
> > On Fri, Sep 21, 2007 at 07:49:21PM +0200, Berthold Gunreben wrote:
> > > Hi,
> > >
> > > I got a used HP parisc workstation, and found a GXT6000P video card in
> > > there. The card was detected and initialized by the firmware of this
> > > machine (a C3750).
> >
> > wow..that's odd. I didn't see any web page which shows HP ever
> > supported GXT6000P with HPUX. I suspect someone sold you the wrong card.
> > Can you explain in more detail what you mean with "detected and initialized
> > by the firmware"?
> >
> > I suspect magic BIOS code isn't getting run. (It _might_ run under
> > a C8000 but I don't expect it to work).
> 
> Well, what can I say. The workstation boots up and displays the usual firmware 
> messages like press Tab to choose resolution (only 640x480 seems to be 
> supported at that stage) and I can also enter commands at this console. The 
> card does not seem to be wrong in this respect.
>

Most likely, all the card hardware required to do 640x480 was a power-on
reset signal.

That rate is very non-hp - it is a rare parisc system monitor that can 
display at that scan.
 
> After booting linux, the messages of the kernel are displayed until the 
> console switches:
> 
> console handover: boot [ttyB0] -> real [tty0]
> 
> Then it takes some more seconds, until the display goes dark and I was not yet 
> successful in bringing it to life again.
>

Sounds like the card never got setup for anything that wasn't hardware defaulted
by the power-on signal.

If I recall correctly, that means (from non-parisc, vga mode land) that the video
interrupt generation is also disabled on the card.
 
> > You can determine if it's necessary by looking at the driver source code.
> > Try to find where it registers the IRQ handler with request_irq().
> > Sounds like either it doesn't or it can't (but should print something
> > to dmesg buffer in that case).
> 
> The driver has no occurence of irq, and it only handles framebuffer (normally, 
> this card also should have 3D capabilities. It looks like it just does not 
> need IRQs.
> 

Perhaps the driver was written to use _only_ the power-on defaults 
with a lot more work required to do anything else.  
Like the other 90% of the driver.

Mike

> It looks like the card is switched off by using 
> pdc_cons.flags &= ~CON_PRINTBUFFER
> 
> At least if I comment this line, booting continues with messages until some 
> point where the machine just hangs. 
> 
> I am sorry, that I did not post more information in the first place, but I 
> don't have much experience with graphics on parisc-linux ... 
> 
> Thanks for your efforts anyway.
> 
> Berthold
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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Hi,

I requested an account yesterday since I was facing a linking problem on
HP-PA (apparently a missing =E2=80=9C-ffunction-sections=E2=80=9D compiler =
option), and
only on this architecture (amongst the 12 supported by Debian).

Thanks to Grant, I've been allowed to debug that problem quite quickly,
and I posted a tiny summary on [1]. Since Grant asked me to reference it
here, you're reading this mail. ;-)

 1. http://ikibiki.org/blog/2007/10/10/Linking_on_hppa/

Again, many thanks for the quick access setup, it is very appreciated,
and will help users get an updated package in the testing distribution.

Cheers,

--=20
Cyril Brulebois

PS: I'm not subscribed, that's why I set Reply-To.

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_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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From - Thu Nov 08 21:36:15 2018
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From: "Joel Soete" <soete.joel@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Fw:[patch 1/2] whitescape cleanup of ccio-dma.c
Date: Tue, 16 Oct 2007 09:03:40 +0200
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--_=__=_XaM3_.1192518220.2A.536422.42.25527.52.42.007.1245584270
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Hello all,

I reach to get some time to attempt to finalize this
<http://lists.parisc-linux.org/pipermail/parisc-linux/2007-January/031129=
.html>

This first hunk just do some white space cleanup:

Hth,
    J.
=0A---=0APack Scarlet One, ADSL 6 Mbps + Telephonie, a partir de EUR 29,9=
5...=0Ahttp://www.scarlet.be/
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git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
http://www.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git

Any last minute things for the 2.6.24 merge window? I'm still sitting on
a lot of development work I've been doing for the last 6 months. Will be
working on getting that merged for 2.6.25 now that things seem to mostly
work from release to release in Linus' tree.

Hooray, this is the first -rc1 cycle where I haven't had to do a
bisect-from-hell to figure out why all my machines won't boot.

[Note, I've given up on the quilt tree for now, because it ended up
being a bit more hassle than just keeping topic branches around.]

Cheers,
	Kyle

Adrian Bunk (1):
      [PARISC] parisc: "extern inline" -> "static inline"

Christoph Lameter (1):
      [PARISC] Use page allocator instead of slab allocator in pci-dma.c

Jeff Bailey (1):
      [PARISC] Export pdc.h for palo

Kyle McMartin (15):
      [PARISC] Wire up sys_fallocate (and compat_sys_fallocate)
      [PARISC] Clean up asm-parisc/pdc.h
      [PARISC] Update defconfigs
      [PARISC] import necessary bits of libgcc.a
      [PARISC] Kill pointless variable use in time.c
      [PARISC] Unbreak processor_probe when we have more than NR_CPUS
      [PARISC] Kill zone_to_nid printk warning
      [PARISC] Kill incorrect cast warning in unwinder
      [PARISC] Clean up a resource_size_t warning in sba_iommu
      [PARISC] Kill off the last vestiges of ASM_PAGE_SIZE
      [PARISC] Clean up pointless ASM_PAGE_SIZE_DIV use
      [PARISC] Remove hardcoded uses of PAGE_SIZE
      [PARISC] Kill off broken irqstack code
      [PARISC] Squelch pci_enable_device __must_check warning in superio
      [PARISC] Quiet sysfs_create_link __must_check warnings in pdc_stable

Sam Ravnborg (2):
      [PARISC] Beautify parisc vmlinux.lds.S
      [PARISC] Kill off ASM_PAGE_SIZE use

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Subject: Re: [parisc-linux] what's in parisc-2.6.git
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Hi Kyle,

> [Note, I've given up on the quilt tree for now, because it ended up
> being a bit more hassle than just keeping topic branches around.]

Have you also given up on your patch tree?  Seems to have disappeared.

Yesterday, I applied your latest patch set to 2.6.23.1 and built
an SMP kernel.  I didn't test it much but there were weird errors
(e.g., postfix failed to start because it thought user postfix
and user nobody, and apt-get reported missing groups such as
Debian-exim).  This is all bogus and the errors don't occur with
2.6.22.9 + your getdents compat patch.  I still have this kernel
around.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Oct 18, 2007 at 03:37:39PM -0400, John David Anglin wrote:
> Hi Kyle,
> 
> > [Note, I've given up on the quilt tree for now, because it ended up
> > being a bit more hassle than just keeping topic branches around.]
> 
> Have you also given up on your patch tree?  Seems to have disappeared.
> 

Just temporarily. The workflow wasn't really working for me, and wasn't
motivating me to generate diffs. I'll be putting more -pa testkernels
up.

Now that I have some time again, I'll be fixing the autobuilder as well.

> Yesterday, I applied your latest patch set to 2.6.23.1 and built
> an SMP kernel.  I didn't test it much but there were weird errors
> (e.g., postfix failed to start because it thought user postfix
> and user nobody, and apt-get reported missing groups such as
> Debian-exim).  This is all bogus and the errors don't occur with
> 2.6.22.9 + your getdents compat patch.  I still have this kernel
> around.
> 

Er, really? This is bizarre, I'm running tip on all my machines without
problem (granted, in 64-bit mode.)

Can you upload the failing kernel somewhere, and I'll try to reproduce
it?

Cheers,
	Kyle
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> Er, really? This is bizarre, I'm running tip on all my machines without
> problem (granted, in 64-bit mode.)
> 
> Can you upload the failing kernel somewhere, and I'll try to reproduce
> it?

It's in linux-2.6.23.1 in my home directory on gsyprf11.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> Just temporarily. The workflow wasn't really working for me, and wasn't
> motivating me to generate diffs. I'll be putting more -pa testkernels
> up.

Ok, I saw you made a lot of updates to parisc-2.6, so I cloned it
this evening.  Noticed a small warning/bug from asm-parisc/rtc.h.

The call to get_rtc_time in get_rtc_ss doesn't check the return
value from get_rtc_time for RTC_BATT_BAD.  As a result, h may
be used unininitialized.  I guess this only happens if the RTC
battery is bad...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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It helps when I use the right mailing list address..

	Sam

----- Forwarded message from Sam Ravnborg <sam@ravnborg.org> -----

Subject: parisc arch makefile clean-up needed [Was: cleaning up "make headers_install" for various architectures]
Sender: linux-kernel-owner@vger.kernel.org
From: Sam Ravnborg <sam@ravnborg.org>
Date:	Wed, 10 Oct 2007 20:38:58 +0200
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To: "Robert P. J. Day" <rpjday@mindspring.com>,
	parisc-linux-request@lists.parisc-linux.org
Cc: Randy Dunlap <randy.dunlap@oracle.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Matthew Wilcox <matthew@wil.cx>,
	Grant Grundler <grundler@parisc-linux.org>,
	Kyle McMartin <kyle@parisc-linux.org>
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Added parisc mailing-listi and cc'ed parisc maintainers.

On Wed, Oct 10, 2007 at 01:26:16PM -0400, Robert P. J. Day wrote:
> On Wed, 10 Oct 2007, Randy Dunlap wrote:
> 
> > On Wed, 10 Oct 2007 12:44:58 -0400 (EDT) Robert P. J. Day wrote:
> >
> > >   the final example, parisc, just plain fails:
> > >
> > > $ make ARCH=parisc headers_install
> > > /home/rpjday/k/git/scripts/gcc-version.sh: line 16: hppa-linux-gcc: command not found
> > > /home/rpjday/k/git/scripts/gcc-version.sh: line 17: hppa-linux-gcc: command not found
> > > /home/rpjday/k/git/arch/parisc/Makefile:39: *** Sorry, GCC v3.3 or above is required..  Stop.
> >
> >
> > Try
> > $ make CROSS_COMPILE="" CC=gcc ARCH=parisc headers_install
> >
> > :(
> > ---
> > ~Randy
> 
> oh, i know how to get around it -- i was just thinking that it
> shouldn't *require* a workaround, that's all.  all of those previous
> warnings and errors are clearly due to the early part of the make
> testing for the appropriate arch-specific build tools without
> realizing that the make target doesn't *need* any of those things just
> to install headers.

parisc arch Makefile needs some love and care...

The logic selecting CROSS_COMPILE seems fishy and wrong -
the error reported by rday is obvious in this respect.

FINAL_LD is unused - kill it.

Building with oldpalo has been broken for a loong time - time to kill it?
Hint - the "cd ../palo" is not working as expected.
And use of TOPDIR is deprecated.

The libs-y assignment should learn from the other architectures how to
get the gcc lib filename:
$(shell $(CC) $(CFLAGS) -print-libgcc-file-name)


And this snippet is also wrong:
PALO := $(shell if which palo; then : ; \
	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
	fi)

palo: vmlinux
	@if [ -x $PALO ]; then \


Make does not export variables so $PALO is not the same as $(PALO).
The latter should be used.

I did not supply a patch because I do not fully understand the
logic behind setting CROSS_COMPILE and 64BIT or not.
But I will be happy to review a patch to fix the issues in the
parisc Makefile.

	Sam

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Subject: Re: [parisc-linux] parisc arch makefile clean-up needed [Was:
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On Wed, Oct 10, 2007 at 08:42:25PM +0200, Sam Ravnborg wrote:
> parisc arch Makefile needs some love and care...
> 
> The logic selecting CROSS_COMPILE seems fishy and wrong -
> the error reported by rday is obvious in this respect.

He doesn't have a compiler installed that can target parisc.  It doesn't
seem obvious to me that this should work.

> FINAL_LD is unused - kill it.

OK.

> Building with oldpalo has been broken for a loong time - time to kill it?
> Hint - the "cd ../palo" is not working as expected.
> And use of TOPDIR is deprecated.

OK, killed.  I don't think anyone still uses that.

> The libs-y assignment should learn from the other architectures how to
> get the gcc lib filename:
> $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)

Actually, this looks utterly unstandardised:

arch/cris/Makefile:LIBGCC = $(shell $(CC) $(CFLAGS) -print-file-name=libgcc.a)
arch/h8300/Makefile:LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(CFLAGS) -print-libgcc-file-name)
arch/m32r/Makefile:LIBGCC       := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
arch/parisc/Makefile:libs-y     += arch/parisc/lib/ `$(CC) -print-libgcc-file-name`
arch/sh64/Makefile:LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
arch/sh/Makefile:LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
arch/xtensa/Makefile:LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)

How about we set it in the main Makefile, or one of the ones in
scripts/?  That way we don't have to learn why $(shell $(CC) $(CFLAGS)
-print-libgcc-file-name) is superior to `$(CC) -print-libgcc-file-name`

> 
> And this snippet is also wrong:
> PALO := $(shell if which palo; then : ; \
> 	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
> 	fi)
> 
> palo: vmlinux
> 	@if [ -x $PALO ]; then \
> 
> 
> Make does not export variables so $PALO is not the same as $(PALO).
> The latter should be used.

Huh.  Looks like the sense of the test is reversed too.  That should
probably be:

	@if [ ! -x $(PALO) ]; then \

> I did not supply a patch because I do not fully understand the
> logic behind setting CROSS_COMPILE and 64BIT or not.
> But I will be happy to review a patch to fix the issues in the
> parisc Makefile.

One issue is that we don't have native 64-bit userspace on parisc.
And we don't have a toolchain that you can pass -m32/-m64 to; you have
to explicitly build a hppa64-linux-gnu toolchain.  Another thing we try
and make user-friendly is that if you're building the parisc kernel on
a non-parisc machine, you need to use a cross-compiler, so we autodetect
that case for you.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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On 10/19/07, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> > Just temporarily. The workflow wasn't really working for me, and wasn't
> > motivating me to generate diffs. I'll be putting more -pa testkernels
> > up.
>
> Ok, I saw you made a lot of updates to parisc-2.6, so I cloned it
> this evening.  Noticed a small warning/bug from asm-parisc/rtc.h.
>
> The call to get_rtc_time in get_rtc_ss doesn't check the return
> value from get_rtc_time for RTC_BATT_BAD.  As a result, h may
> be used unininitialized.  I guess this only happens if the RTC
> battery is bad...

GCC head is really great at correctly noticing uninitialized uses of
variables. I'm tempted to compile the kernel with head just to fix
these. I just fixed 2 such cases in gdb.

Cheers,
Carlos.
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Xref: news.gmane.org gmane.linux.ports.parisc:24826

> Ok, I saw you made a lot of updates to parisc-2.6, so I cloned it
> this evening.

This kernel build also has the user/group problem:

...
Starting internet superserver: inetd.
Starting Postfix Mail Transport Agent: postfixpostfix: fatal: file /etc/postfix/main.cf: parameter default_privs: unknown user name value: nobody
 failed!
...

This is without udev installed.  With udev, the problems are much
more serious:

...
Mount failed for selinuxfs on /selinux:  No such file or directory
INIT: version 2.86 booting
udevd[298]: init_udevd_socket: bind failed: Address already in use
udevd[297]: init_udevd_socket: bind failed: Address already in use
udevd[297]: main: error initializing udevd socket
udevd[296]: main: error disabling OOM: No such file or directory
udevd[299]: init_udevd_socket: bind failed: Address already in use
udevd[299]: main: error initializing udevd socket
* .udev/ already exists on the static /dev!
Starting the hotplug events dispatcher: udevdudevd[379]: init_udevd_socket: bind failed: Address already in use
error initializing udevd socket
udevd[379]: main: error initializing udevd socket
 failed!
Setting the system clock.
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access method.
* Unable to set System Clock to: Sat Oct 20 06:10:23 UTC 2007
Activating swap:.
Will now check root file system:fsck 1.40.2 (12-Jul-2007)
[/sbin/fsck.ext2 (1) -- /lib/init/rw/rootdev] fsck.ext2 -a -C0 /lib/init/rw/rootdev
/lib/init/rw/rootdev: clean, 594499/4308992 files, 2720805/8612848 blocks.
Setting the system clock.
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access method.
* Unable to set System Clock to: Sat Oct 20 06:10:25 UTC 2007
Cleaning up ifupdown....
Loading kernel module tg3.
tg3.c:v3.84 (October 12, 2007)
eth0: Tigon3 [partno(BCM95700A6) rev 0105 PHY(5701)] (PCI:66MHz:64-bit) 10/100/1000Base-T Ethernet 00:30:6e:4b:16:4d
eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] WireSpeed[1] TSOcap[0]
eth0: dma_rwctrl[76ff2d0f] dma_mask[32-bit]
Loading device-mapper support.
Loading device-mapper support.
Will now check all file systems.
fsck 1.40.2 (12-Jul-2007)
Checking all file systems.
[/sbin/fsck.ext2 (1) -- /boot] fsck.ext2 -a -C0 /dev/sda1
fsck.ext2: No such file or directory while trying to open /dev/sda1
/dev/sda1:
The superblock could not be read or does not describe a correct ext2
filesystem.  If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>

fsck died with exit status 8
* File system check failed.
A log is being saved in /var/log/fsck/checkfs if that location is writable.
Please repair the file system manually.
* A maintenance shell will now be started.
CONTROL-D will terminate this shell and resume system boot.
Give root password for maintenance
(or type Control-D to continue):
...

Possibly, this caused by setting

  CONFIG_UEVENT_HELPER_PATH="/sbin/udevd"

"/sbin/hotplug" doesn't exist and there's no help for this option,
so it's not obvious what to select.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:24827

> Possibly, this caused by setting
> 
>   CONFIG_UEVENT_HELPER_PATH="/sbin/udevd"
> 
> "/sbin/hotplug" doesn't exist and there's no help for this option,
> so it's not obvious what to select.

Changing this back to the default "/sbin/hotplug" avoids this udev
problem, however the kernel HPMC'd at the end of the boot.  Aside
>from the hpmc log, there's not much info on what happened.

Back to 2.6.22.9,
Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] [PATCH][PARISC] Introduce cc-cross-prefix and clean
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Xref: news.gmane.org gmane.linux.ports.parisc:24828

Introduce cc-cross-prefix to improve compatibility
with diverse cross compile environments.

In the same process arch/parisc/Makefile was
beautified a little - with no functional changes.

In my setup I now avoid the error message from
"which palo" because I have no palo installed.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
partly tested. My hppa toolchain is busted but
I could test most of the changes.

IMHO the end-result is much easier to read.
I had to compromise on the indent where I did the CROSS_COMPILE
stuff - 3x8 was too much.

Please review my selected set of possible cross compile
prefixes. It is not a direct 1:1 from the original Makefile.

	Sam

 Makefile |   65 +++++++++++++++++++++++++++------------------------------------
 1 file changed, 28 insertions(+), 37 deletions(-)


diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index ae4a9b3..516a60f 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -18,28 +18,24 @@
 #
 NM		= sh $(srctree)/arch/parisc/nm
 CHECKFLAGS	+= -D__hppa__=1
-
-MACHINE		:= $(shell uname -m)
-ifeq ($(MACHINE),parisc*)
-NATIVE		:= 1
-endif
+OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
 
 ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
-WIDTH		:= 64
-CROSS_COMPILE	:= hppa64-linux-gnu-
+ifneq ($(SUBARCH),$(ARCH))
+        ifeq ($(CROSS_COMPILE),)
+                CROSS_COMPILE := $(call cc-cross-prefix, hppa64-linux-gnu- hppa64-linux-)
+        endif
+endif
 else # 32-bit
-WIDTH		:=
+ifneq ($(SUBARCH),$(ARCH))
+        ifeq ($(CROSS_COMPILE),)
+                CROSS_COMPILE := $(call cc-cross-prefix, hppa-linux-gnu- hppa-linux-)
+        endif
 endif
-
-# attempt to help out folks who are cross-compiling
-ifeq ($(NATIVE),1)
-CROSS_COMPILE	:= hppa$(WIDTH)-linux-
 endif
 
-OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
-
 cflags-y	:= -pipe
 
 # These flags should be implied by an hppa-linux configuration, but they
@@ -62,46 +58,43 @@ cflags-$(CONFIG_PA7100LC)	+= -march=1.1 -mschedule=7100LC
 cflags-$(CONFIG_PA7300LC)	+= -march=1.1 -mschedule=7300
 cflags-$(CONFIG_PA8X00)		+= -march=2.0 -mschedule=8000
 
-head-y			:= arch/parisc/kernel/head.o 
-
 KBUILD_CFLAGS	+= $(cflags-y)
 
-kernel-y			:= mm/ kernel/ math-emu/ kernel/init_task.o
+head-y				:= arch/parisc/kernel/head.o 
+kernel-y			:= arch/parisc/mm/
+kernel-y			+= arch/parisc/kernel/
+kernel-y			+= arch/parisc/math-emu/
+kernel-y			+= arch/parisc/kernel/init_task.o
 kernel-$(CONFIG_HPUX)		+= hpux/
+libs-y				+= arch/parisc/lib/
+drivers-$(CONFIG_OPROFILE)	+= arch/parisc/oprofile/
 
-core-y	+= $(addprefix arch/parisc/, $(kernel-y))
-libs-y	+= arch/parisc/lib/
-
-drivers-$(CONFIG_OPROFILE)		+= arch/parisc/oprofile/
-
-PALO := $(shell if which palo; then : ; \
-	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
-	fi)
-
-PALOCONF := $(shell if [ -f $(src)/palo.conf ]; then echo $(src)/palo.conf; \
-	else echo $(obj)/palo.conf; \
+PALO := $(shell                         \
+	if (which palo)  2>&1 ; then : ; \
+	elif [ -x /sbin/palo ]; then     \
+		echo /sbin/palo;         \
 	fi)
 
 palo: vmlinux
-	@if test ! -x "$(PALO)"; then \
+	$(Q)if test ! -x "$(PALO)"; then \
 		echo 'ERROR: Please install palo first (apt-get install palo)';\
 		echo 'or build it from source and install it somewhere in your $$PATH';\
 		false; \
 	fi
-	@if test ! -f "$(PALOCONF)"; then \
+	$(Q)if test ! -f "$(obj)/palo.conf"; then \
 		cp $(src)/arch/parisc/defpalo.conf $(obj)/palo.conf; \
 		echo 'A generic palo config file ($(obj)/palo.conf) has been created for you.'; \
 		echo 'You should check it and re-run "make palo".'; \
 		echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
 		false; \
 	fi
-	$(PALO) -f $(PALOCONF)
+	$(PALO) -f $(obj)/palo.conf
 
 # Shorthands for known targets not supported by parisc, use vmlinux as default
 Image zImage bzImage: vmlinux
 
 kernel_install: vmlinux
-	sh $(src)/arch/parisc/install.sh \
+	sh $(srctree)/$(src)/arch/parisc/install.sh \
 			$(KERNELRELEASE) $< System.map "$(INSTALL_PATH)"
 
 install: kernel_install modules_install
@@ -119,10 +112,8 @@ define archhelp
 endef
 
 # we require gcc 3.3 or above to compile the kernel
-archprepare: checkbin
-checkbin:
-	@if test "$(call cc-version)" -lt "0303"; then \
-		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
-		echo "the kernel." ; \
+archprepare:
+	$(Q)if test "$(call cc-version)" -lt "0303"; then \
+		echo "Sorry, GCC v3.3 or above is required to build the kernel." ; \
 		false ; \
 	fi
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On Tue, 23 Oct 2007, Emil Medve wrote:
>
> Fix build error messages such as this:

Some - but apparently not all - of these are already fixed in my tree, 
through pulls from Jens. I just pushed out the result, can you resend the 
parts that didn't already get fixed?

As is, the patch won't apply for me, since it touches many different parts 
and some of them are fixed.

		Linus
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> Changing this back to the default "/sbin/hotplug" avoids this udev
> problem, however the kernel HPMC'd at the end of the boot.  Aside
> from the hpmc log, there's not much info on what happened.
> 
> Back to 2.6.22.9,

I was almost about to say the version as 2007-10-22 resolved the
issues that I have been seeing with 2.6.23.  This build booted ok
but died after three days with a soft lockup:

BUG: soft lockup - CPU#1 stuck for 11s! [udevd:382]

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000001100001111 Not tainted
r00-03  000000000804030f 00000000405c6b20 000000004011dde4 0000000000000000
r04-07  00000000405bd320 000000004052ff00 000000004052ff00 00000000405f7008
r08-11  0000000000000001 00000000404a92c0 00000000404b3be0 0000000000000001
r12-15  0000000000000000 00000000fb111bc0 00000000453be3c0 0000000000000000
r16-19  00000000459ecec0 00000000475909c0 00000000453439c0 000000004052ff00
r20-23  0000000000000038 00000000404b4330 0000000000000000 0000000000000001
r24-27  0000000000000000 0000000000000008 00000000404b4330 00000000405bd320
r28-31  0000000000000001 000000004487c750 000000004487c700 00000001032c2993
sr00-03  000000000004a000 0000000000000000 0000000000000000 000000000004a000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004011de24 000000004011de28
 IIR: 0e6010dc    ISR: 00000000474e400a  IOR: 00000000401131cc
 CPU:        1   CR30: 000000004487c000 CR31: fffffff0f0e098e0
ORIG_R28: 0000000000000101
IAOQ[0]: smp_call_function+0x2dc/0x390
IAOQ[1]: smp_call_function+0x2e0/0x390
RP(r2): smp_call_function+0x29c/0x390

The above message repeated every 11 seconds or so on the console.  Nothing
in any other logs.

The system did get through two gcc builds before crashing.

Another minor problem that I see is testsuite timeouts for tests that
don't normally timeout.  This seems almost random and I have no idea how
to reproduce it.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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arch/parisc/math-emu/built-in.o: In function `decode_fpu':
(.text.decode_fpu+0x24c): undefined reference to `printk'

Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
---
 arch/parisc/math-emu/decode_exc.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

 Doesn't normally fail, but somehow when playing with randconfig it did.

diff --git a/arch/parisc/math-emu/decode_exc.c b/arch/parisc/math-emu/decode_exc.c
index 66c8a9f..4e65072 100644
--- a/arch/parisc/math-emu/decode_exc.c
+++ b/arch/parisc/math-emu/decode_exc.c
@@ -46,6 +46,7 @@
 #include "dbl_float.h"
 #include "cnv_float.h"
 /* #include "types.h" */
+#include <linux/kernel.h>
 #include <asm/signal.h>
 #include <asm/siginfo.h>
 /* #include <machine/sys/mdep_private.h> */
-- 
1.5.3.4

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- move boot_args[] into the init section
- move $global$ into the read_mostly section
- fix the following two section mismatches:
WARNING: vmlinux.o(.text+0x9c): Section mismatch: reference to .init.text:start_kernel (between '$pgt_fill_loop' and '$is_pa20')
WARNING: vmlinux.o(.text+0xa0): Section mismatch: reference to .init.text:start_kernel (between '$pgt_fill_loop' and '$is_pa20')

Signed-off-by: Helge Deller <deller@gmx.de>

 head.S |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index a7b8859..ec2482d 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -20,10 +20,11 @@
 #include <asm/pgtable.h>
 
 #include <linux/linkage.h>
+#include <linux/init.h>
 
 	.level	LEVEL
 
-	.data
+	__INITDATA
 ENTRY(boot_args)
 	.word 0 /* arg0 */
 	.word 0 /* arg1 */
@@ -31,7 +32,7 @@ ENTRY(boot_args)
 	.word 0 /* arg3 */
 END(boot_args)
 
-	.text
+	.section .text.head
 	.align	4
 	.import init_thread_union,data
 	.import fault_vector_20,code    /* IVA parisc 2.0 32 bit */
@@ -343,7 +344,7 @@ smp_slave_stext:
 ENDPROC(stext)
 
 #ifndef CONFIG_64BIT
-	.data
+	.section .data.read_mostly
 
 	.align	4
 	.export	$global$,data
_______________________________________________
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From: Frans Pop <elendil@planet.nl>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [parisc] 2.6.24-rc3 (64-bit,
	smp) fails to boot on 9000/785/J5600
Date: Tue, 27 Nov 2007 10:26:34 +0100
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v2.6.24-rc3-19-g2ffbb83 fails very early in the boot procedure.
2.6.23 compiled with similar config boots fine.

System is running Debian unstable; kernel was compiled using gcc 4.1.2.

Cheers,
Frans Pop

Boot messages for 2.6.24
------------------------
Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel='
Selected kernel: /vmlinuz-2.6.24-rc3 from partition 2
Selected ramdisk: /initrd.img-2.6.24-rc3 from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 4648960 mediaptr 0x1000
Segment 1 load 005c4000 size 689216 mediaptr 0x470000
Loading ramdisk 3078237 bytes @ 3fcff000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.24-rc3 (root@treebeard) (gcc version 4.1.3 20071019 (prerelease) (D7
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005d10 00000491 00000000 00000002 778fe5fc 100000f0 00000008 000000b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x3
model 9000/785/J5600
Total Memory: 2048 MB
initrd: 7fcff000-7ffee85d
initrd: reserving 3fcff000-3ffee85d (mem_max 80000000)
LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
SMP: bootstrap CPU ID is 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 517120
Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vml3
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Memory: 2051840k/2097152k available (3103k kernel code, 44736k reserved, 1388k data, )
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x00000000c0000000   (2048 MB)
      .init : 0x0000000040624000 - 0x000000004066d000   ( 292 kB)
      .data : 0x0000000040407fb0 - 0x0000000040563000   (1388 kB)
      .text : 0x0000000040100000 - 0x0000000040407fb0   (3103 kB)
<system hangs and needs power cycle>


Diff between 2.6.23 and 2.6.24 config
-------------------------------------
$ diff -u /boot/config-2.6.23 /boot/config-2.6.24-rc3 | grep "^[+-][^#]"
--- /boot/config-2.6.23 2007-11-27 08:01:51.000000000 +0000
+++ /boot/config-2.6.24-rc3     2007-11-27 08:50:10.000000000 +0000
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+CONFIG_BLOCK_COMPAT=y
+CONFIG_PCI_LEGACY=y
+CONFIG_INET_LRO=m
+CONFIG_NETFILTER_XT_MATCH_TIME=m
+CONFIG_NET_ACT_NAT=m
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_IDE_ARCH_OBSOLETE_INIT=y
+CONFIG_SCSI_SRP_ATTRS=m
+CONFIG_FIXED_MII_AMNT=1
+CONFIG_SSB_POSSIBLE=y
+CONFIG_SSB=m
+CONFIG_SSB_PCIHOST_POSSIBLE=y
+CONFIG_SSB_PCIHOST=y
+CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
+CONFIG_SSB_DRIVER_PCICORE=y
+CONFIG_SND_AC97_POWER_SAVE_DEFAULT=0
+CONFIG_PRINT_QUOTA_WARNING=y
-CONFIG_RAMFS=y
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_INSTRUMENTATION=y
+CONFIG_ENABLE_WARN_DEPRECATED=y


Full 2.6.24 config
------------------

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	filename="config-2.6.24-rc3"

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.24-rc3
# Mon Nov 26 18:45:54 2007
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_TIME_LOW_RES=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_IRQ_PER_CPU=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
# CONFIG_TASKSTATS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
CONFIG_AUDIT=y
CONFIG_IKCONFIG=y
# CONFIG_IKCONFIG_PROC is not set
CONFIG_LOG_BUF_SHIFT=15
# CONFIG_CGROUPS is not set
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_FAIR_USER_SCHED=y
# CONFIG_FAIR_CGROUP_SCHED is not set
CONFIG_SYSFS_DEPRECATED=y
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_BLK_DEV_BSG is not set
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_PREEMPT_BKL is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
# CONFIG_SPARSEMEM_STATIC is not set
# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_RESOURCES_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_COMPAT=y
CONFIG_NR_CPUS=8

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
CONFIG_ISA=y
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_PCI_LEGACY=y
# CONFIG_PCI_DEBUG is not set
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=m

#
# Networking
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=m
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=y
CONFIG_TCP_CONG_CUBIC=m
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
CONFIG_DEFAULT_BIC=y
# CONFIG_DEFAULT_CUBIC is not set
# CONFIG_DEFAULT_HTCP is not set
# CONFIG_DEFAULT_VEGAS is not set
# CONFIG_DEFAULT_WESTWOOD is not set
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="bic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IP_VS=m
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12

#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y

#
# IPVS scheduler
#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m

#
# IPVS application helper
#
CONFIG_IP_VS_FTP=m
CONFIG_IPV6=m
CONFIG_IPV6_PRIVACY=y
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
# CONFIG_IPV6_MIP6 is not set
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_NETLABEL is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_BRIDGE_NETFILTER=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK_ENABLED=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CT_ACCT=y
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CT_PROTO_GRE=m
CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NETFILTER_XTABLES=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m

#
# IP: Netfilter Configuration
#
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_IPRANGE=m
CONFIG_IP_NF_MATCH_TOS=m
CONFIG_IP_NF_MATCH_RECENT=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_MATCH_OWNER=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_SAME=m
CONFIG_NF_NAT_SNMP_BASIC=m
CONFIG_NF_NAT_PROTO_GRE=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_PPTP=m
CONFIG_NF_NAT_H323=m
CONFIG_NF_NAT_SIP=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_TOS=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m

#
# IPv6: Netfilter Configuration (EXPERIMENTAL)
#
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_OWNER=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_TARGET_HL=m
CONFIG_IP6_NF_RAW=m

#
# Bridge: Netfilter Configuration
#
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_ULOG=m
CONFIG_IP_DCCP=m
CONFIG_INET_DCCP_DIAG=m
CONFIG_IP_DCCP_ACKVEC=y

#
# DCCP CCIDs Configuration (EXPERIMENTAL)
#
CONFIG_IP_DCCP_CCID2=m
# CONFIG_IP_DCCP_CCID2_DEBUG is not set
CONFIG_IP_DCCP_CCID3=m
CONFIG_IP_DCCP_TFRC_LIB=m
# CONFIG_IP_DCCP_CCID3_DEBUG is not set
CONFIG_IP_DCCP_CCID3_RTO=100

#
# DCCP Kernel Hacking
#
# CONFIG_IP_DCCP_DEBUG is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_MSG is not set
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_HMAC_NONE is not set
# CONFIG_SCTP_HMAC_SHA1 is not set
CONFIG_SCTP_HMAC_MD5=y
CONFIG_TIPC=m
CONFIG_TIPC_ADVANCED=y
CONFIG_TIPC_ZONES=3
CONFIG_TIPC_CLUSTERS=1
CONFIG_TIPC_NODES=255
CONFIG_TIPC_SLAVE_NODES=0
CONFIG_TIPC_PORTS=8191
CONFIG_TIPC_LOG=0
# CONFIG_TIPC_DEBUG is not set
# CONFIG_ATM is not set
CONFIG_BRIDGE=m
CONFIG_VLAN_8021Q=m
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_RR=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_INGRESS=m

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_ROUTE=y
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_IPT=m
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
# CONFIG_NET_CLS_POLICE is not set
CONFIG_NET_CLS_IND=y
CONFIG_NET_SCH_FIFO=y

#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set

#
# Wireless
#
# CONFIG_CFG80211 is not set
# CONFIG_WIRELESS_EXT is not set
# CONFIG_MAC80211 is not set
# CONFIG_IEEE80211 is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=m
# CONFIG_MTD is not set
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_SERIAL=m
CONFIG_PARPORT_PC_FIFO=y
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_GSC=y
CONFIG_PARPORT_AX88796=m
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
# CONFIG_PNP is not set
CONFIG_BLK_DEV=y
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
CONFIG_ATA_OVER_ETH=m
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_EEPROM_93CX6 is not set
CONFIG_SGI_IOC4=m
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
CONFIG_IDE=m
CONFIG_BLK_DEV_IDE=m

#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_BLK_DEV_IDEDISK=m
# CONFIG_IDEDISK_MULTI_MODE is not set
CONFIG_BLK_DEV_IDECD=m
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_BLK_DEV_IDESCSI is not set
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y

#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=m
# CONFIG_BLK_DEV_PLATFORM is not set

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=m
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
# CONFIG_IDE_ARM is not set

#
# Other IDE chipsets support
#

#
# Note: most of these also require special kernel boot parameters
#
# CONFIG_BLK_DEV_4DRIVES is not set
# CONFIG_BLK_DEV_ALI14XX is not set
# CONFIG_BLK_DEV_DTC2278 is not set
# CONFIG_BLK_DEV_HT6560B is not set
# CONFIG_BLK_DEV_QD65XX is not set
# CONFIG_BLK_DEV_UMC8672 is not set
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDE_ARCH_OBSOLETE_INIT=y
# CONFIG_BLK_DEV_HD is not set

#
# SCSI device support
#
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=m
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=m
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
# CONFIG_SCSI_FC_TGT_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=y
# CONFIG_SCSI_SAS_LIBSAS_DEBUG is not set
CONFIG_SCSI_SRP_ATTRS=m
# CONFIG_SCSI_SRP_TGT_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
CONFIG_SCSI_AIC94XX=y
# CONFIG_AIC94XX_DEBUG is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_LASI700 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_ZALON is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_DEBUG is not set
CONFIG_SCSI_SRP=m
# CONFIG_ATA is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
CONFIG_MD_RAID5_RESHAPE=y
CONFIG_MD_MULTIPATH=m
CONFIG_MD_FAULTY=m
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_MULTIPATH_EMC=m
# CONFIG_DM_MULTIPATH_RDAC is not set
# CONFIG_DM_MULTIPATH_HP is not set
CONFIG_DM_DELAY=m
# CONFIG_DM_UEVENT is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
CONFIG_I2O=m
CONFIG_I2O_LCT_NOTIFY_ON_CHANGES=y
CONFIG_I2O_EXT_ADAPTEC=y
CONFIG_I2O_EXT_ADAPTEC_DMA64=y
CONFIG_I2O_CONFIG=m
CONFIG_I2O_CONFIG_OLD_IOCTL=y
CONFIG_I2O_BUS=m
CONFIG_I2O_BLOCK=m
CONFIG_I2O_SCSI=m
CONFIG_I2O_PROC=m
CONFIG_NETDEVICES=y
# CONFIG_NETDEVICES_MULTIQUEUE is not set
CONFIG_IFB=m
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_IP1000 is not set
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
# CONFIG_ICPLUS_PHY is not set
CONFIG_FIXED_PHY=m
# CONFIG_FIXED_MII_10_FDX is not set
# CONFIG_FIXED_MII_100_FDX is not set
# CONFIG_FIXED_MII_1000_FDX is not set
CONFIG_FIXED_MII_AMNT=1
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
# CONFIG_LASI_82596 is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=m
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
CONFIG_TULIP_NAPI=y
CONFIG_TULIP_NAPI_HW_MITIGATION=y
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_NET_PCI is not set
# CONFIG_B44 is not set
# CONFIG_NET_POCKET is not set
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set

#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 is not set

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_PLIP=m
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
# CONFIG_PPPOL2TP is not set
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLHC=m
CONFIG_SLIP_SMART=y
# CONFIG_SLIP_MODE_SLIP6 is not set
# CONFIG_NET_FC is not set
CONFIG_SHAPER=m
CONFIG_NETCONSOLE=m
# CONFIG_NETCONSOLE_DYNAMIC is not set
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=m
# CONFIG_INPUT_POLLDEV is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
CONFIG_KEYBOARD_STOWAWAY=m
CONFIG_KEYBOARD_HIL_OLD=m
CONFIG_KEYBOARD_HIL=m
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=m
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_INPORT is not set
# CONFIG_MOUSE_LOGIBM is not set
# CONFIG_MOUSE_PC110PAD is not set
# CONFIG_MOUSE_VSXXXAA is not set
CONFIG_MOUSE_HIL=m
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
CONFIG_INPUT_ATI_REMOTE=m
CONFIG_INPUT_ATI_REMOTE2=m
CONFIG_INPUT_KEYSPAN_REMOTE=m
CONFIG_INPUT_POWERMATE=m
CONFIG_INPUT_YEALINK=m
# CONFIG_INPUT_UINPUT is not set
CONFIG_HP_SDC_RTC=m

#
# Hardware I/O ports
#
CONFIG_SERIO=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_PARKBD is not set
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=m
CONFIG_HIL_MLC=m
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
# CONFIG_SERIAL_NONSTANDARD is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=16
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_FOURPORT=m
CONFIG_SERIAL_8250_ACCENT=m
CONFIG_SERIAL_8250_BOCA=m
# CONFIG_SERIAL_8250_EXAR_ST16C554 is not set
CONFIG_SERIAL_8250_HUB6=m
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_MUX=y
CONFIG_SERIAL_MUX_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_TIPAR is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
CONFIG_GEN_RTC=y
# CONFIG_GEN_RTC_X is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set

#
# SPI support
#
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y

#
# SPI Master Controller Drivers
#
CONFIG_SPI_BITBANG=m
CONFIG_SPI_BUTTERFLY=m
# CONFIG_SPI_LM70_LLP is not set

#
# SPI Protocol Masters
#
CONFIG_SPI_AT25=m
# CONFIG_SPI_SPIDEV is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=m
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_IT87 is not set
CONFIG_SENSORS_LM70=m
# CONFIG_SENSORS_PC87360 is not set
CONFIG_SENSORS_PC87427=m
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_VIA686A is not set
CONFIG_SENSORS_VT1211=m
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
# CONFIG_WATCHDOG is not set

#
# Sonics Silicon Backplane
#
CONFIG_SSB_POSSIBLE=y
CONFIG_SSB=m
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y

#
# Multifunction device drivers
#
# CONFIG_MFD_SM501 is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
# CONFIG_DAB is not set

#
# Graphics support
#
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
# CONFIG_FB_DDC is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_SYS_FOPS is not set
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_STI=y
# CONFIG_FB_UVESA is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_VIRTUAL is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=m
# CONFIG_BACKLIGHT_CORGI is not set

#
# Display device support
#
CONFIG_DISPLAY_SUPPORT=m

#
# Display hardware drivers
#

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_LOGO_PARISC_CLUT224=y

#
# Sound
#
CONFIG_SOUND=m

#
# Advanced Linux Sound Architecture
#
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_SEQUENCER=m
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set

#
# Generic devices
#
CONFIG_SND_MPU401_UART=m
CONFIG_SND_OPL3_LIB=m
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DUMMY=m
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
CONFIG_SND_MTS64=m
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
CONFIG_SND_PORTMAN2X4=m

#
# PCI devices
#
CONFIG_SND_AD1889=m
CONFIG_SND_ALS300=m
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
CONFIG_SND_DARLA20=m
CONFIG_SND_GINA20=m
CONFIG_SND_LAYLA20=m
CONFIG_SND_DARLA24=m
CONFIG_SND_GINA24=m
CONFIG_SND_LAYLA24=m
CONFIG_SND_MONA=m
CONFIG_SND_MIA=m
CONFIG_SND_ECHO3G=m
CONFIG_SND_INDIGO=m
CONFIG_SND_INDIGOIO=m
CONFIG_SND_INDIGODJ=m
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
CONFIG_SND_HDSPM=m
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
CONFIG_SND_PCXHR=m
CONFIG_SND_RIPTIDE=m
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
CONFIG_SND_AC97_POWER_SAVE=y
CONFIG_SND_AC97_POWER_SAVE_DEFAULT=0

#
# SPI devices
#

#
# USB devices
#
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_CAIAQ is not set

#
# GSC devices
#
# CONFIG_SND_HARMONY is not set

#
# System on Chip audio support
#
# CONFIG_SND_SOC is not set

#
# SoC Audio support for SuperH
#

#
# Open Sound System
#
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
CONFIG_HID_SUPPORT=y
CONFIG_HID=m
# CONFIG_HID_DEBUG is not set
# CONFIG_HIDRAW is not set

#
# USB Input Devices
#
CONFIG_USB_HID=m
# CONFIG_USB_HIDINPUT_POWERBOOK is not set
# CONFIG_HID_FF is not set
CONFIG_USB_HIDDEV=y

#
# USB HID Boot Protocol drivers
#
CONFIG_USB_KBD=m
CONFIG_USB_MOUSE=m
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=m
CONFIG_USB_DEBUG=y

#
# Miscellaneous USB options
#
# CONFIG_USB_DEVICEFS is not set
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set

#
# USB Host Controller Drivers
#
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_SPLIT_ISO is not set
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
CONFIG_USB_ISP116X_HCD=m
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_UHCI_HCD is not set
CONFIG_USB_U132_HCD=m
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set

#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
#

#
# may also be needed; see USB_STORAGE Help for more information
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
CONFIG_USB_STORAGE_ALAUDA=y
CONFIG_USB_STORAGE_ONETOUCH=y
CONFIG_USB_STORAGE_KARMA=y
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
CONFIG_USB_MON=y

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set

#
# USB Serial Converter support
#
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_AIRCABLE=m
CONFIG_USB_SERIAL_AIRPRIME=m
CONFIG_USB_SERIAL_ARK3116=m
CONFIG_USB_SERIAL_BELKIN=m
# CONFIG_USB_SERIAL_CH341 is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
CONFIG_USB_SERIAL_CP2101=m
CONFIG_USB_SERIAL_CYPRESS_M8=m
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_FUNSOFT=m
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
CONFIG_USB_SERIAL_IR=m
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_EDGEPORT_TI is not set
CONFIG_USB_SERIAL_GARMIN=m
CONFIG_USB_SERIAL_IPW=m
CONFIG_USB_SERIAL_KEYSPAN_PDA=m
# CONFIG_USB_SERIAL_KEYSPAN is not set
CONFIG_USB_SERIAL_KLSI=m
CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
CONFIG_USB_SERIAL_MOS7720=m
CONFIG_USB_SERIAL_MOS7840=m
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=m
# CONFIG_USB_SERIAL_OTI6858 is not set
CONFIG_USB_SERIAL_HP4X=m
CONFIG_USB_SERIAL_SAFE=m
# CONFIG_USB_SERIAL_SAFE_PADDED is not set
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
# CONFIG_USB_SERIAL_TI is not set
CONFIG_USB_SERIAL_CYBERJACK=m
CONFIG_USB_SERIAL_XIRCOM=m
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_SERIAL_OMNINET=m
CONFIG_USB_SERIAL_DEBUG=m
CONFIG_USB_EZUSB=y

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
CONFIG_USB_ADUTUX=m
# CONFIG_USB_AUERSWALD is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
CONFIG_USB_BERRY_CHARGE=m
# CONFIG_USB_LED is not set
CONFIG_USB_CYPRESS_CY7C63=m
# CONFIG_USB_CYTHERM is not set
CONFIG_USB_PHIDGET=m
# CONFIG_USB_PHIDGETKIT is not set
CONFIG_USB_PHIDGETMOTORCONTROL=m
# CONFIG_USB_PHIDGETSERVO is not set
# CONFIG_USB_IDMOUSE is not set
CONFIG_USB_FTDI_ELAN=m
CONFIG_USB_APPLEDISPLAY=m
# CONFIG_USB_SISUSBVGA is not set
CONFIG_USB_LD=m
CONFIG_USB_TRANCEVIBRATOR=m
CONFIG_USB_IOWARRIOR=m

#
# USB DSL modem support
#

#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
# CONFIG_MMC is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=m
CONFIG_RTC_CLASS=m

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#
CONFIG_RTC_DRV_RS5C348=m
CONFIG_RTC_DRV_MAX6902=m

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_DS1553=m
# CONFIG_RTC_DRV_STK17TA8 is not set
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_M48T86=m
# CONFIG_RTC_DRV_M48T59 is not set
CONFIG_RTC_DRV_V3020=m

#
# on-CPU RTC drivers
#
# CONFIG_AUXDISPLAY is not set

#
# Userspace I/O
#
# CONFIG_UIO is not set

#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=m
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
# CONFIG_EXT4DEV_FS is not set
CONFIG_JBD=m
# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_MINIX_FS is not set
CONFIG_ROMFS_FS=m
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_QUOTA=y
# CONFIG_QUOTA_NETLINK_INTERFACE is not set
CONFIG_PRINT_QUOTA_WARNING=y
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
CONFIG_DNOTIFY=y
CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_GENERIC_ACL=y

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_NTFS_FS=m
# CONFIG_NTFS_DEBUG is not set
CONFIG_NTFS_RW=y

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=m

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
CONFIG_ECRYPT_FS=m
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_CRAMFS=y
CONFIG_VXFS_FS=m
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_NFS_DIRECTIO=y
# CONFIG_NFSD is not set
CONFIG_ROOT_NFS=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
CONFIG_SUNRPC_BIND34=y
CONFIG_RPCSEC_GSS_KRB5=y
CONFIG_RPCSEC_GSS_SPKM3=m
CONFIG_SMB_FS=m
CONFIG_SMB_NLS_DEFAULT=y
CONFIG_SMB_NLS_REMOTE="cp437"
CONFIG_CIFS=m
# CONFIG_CIFS_STATS is not set
# CONFIG_CIFS_WEAK_PW_HASH is not set
# CONFIG_CIFS_XATTR is not set
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_EXPERIMENTAL is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
CONFIG_DLM=m
CONFIG_DLM_DEBUG=y
CONFIG_INSTRUMENTATION=y
CONFIG_PROFILING=y
CONFIG_OPROFILE=m
# CONFIG_MARKERS is not set

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_DETECT_SOFTLOCKUP is not set
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_FORCED_INLINING is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_RWLOCK is not set
# CONFIG_DEBUG_RODATA is not set

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
CONFIG_SECURITY=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
CONFIG_SECURITY_CAPABILITIES=y
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=0
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
# CONFIG_SECURITY_SELINUX_ENABLE_SECMARK_DEFAULT is not set
# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_CRYPTO=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_LRW=m
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_ANUBIS=m
# CONFIG_CRYPTO_SEED is not set
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_TEST=m
# CONFIG_CRYPTO_AUTHENC is not set
CONFIG_CRYPTO_HW=y

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
CONFIG_AUDIT_GENERIC=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y

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Subject: Re: [parisc-linux] [parisc] 2.6.24-rc3 (64-bit,
	smp) fails to boot on 9000/785/J5600
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On Tue, Nov 27, 2007 at 10:26:34AM +0100, Frans Pop wrote:
> v2.6.24-rc3-19-g2ffbb83 fails very early in the boot procedure.
> 2.6.23 compiled with similar config boots fine.
> 
> System is running Debian unstable; kernel was compiled using gcc 4.1.2.
> 

Ah, I diagnosed this last week. Will post the patch in a bit.
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Subject: Re: [parisc-linux] [patch 2/2] backport of sba sg list management
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On Wed, Nov 28, 2007 at 09:25:51AM +0100, Joel Soete wrote:
> > You need to read about "VIVT" caches (Virtual Indexed, Virtual Tagged).
> > The "Virtual Index" bits have to be provided by any cache coherent traffic
> > in order to be cache coherent. That's how the caches know _where_ in the
> > cache to find potential hits for a given cacheline.
> >
> For sure I need more reading but imho this paper is already clear on subject:
> my understanding (in short terms) is that cpu cache entry should be the same
> virtual address as DMA cache else it would need additional stuff to check
> physical address, right?

There is no "DMA Cache". The CPU owns the data cache and it needs enough
info to verify if particular DMA transactions affect entries in the
CPU cache (or not). "VIVT" summarizes the type of cache and thus info
the CPU needs for DMA/cache coherency checking.

cheers,
grant
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Subject: Re: [parisc-linux] palo_1.5 available
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On Sat, May 15, 2004 at 11:16:25PM +0000, Joel Soete wrote:
> Thanks but I would just remember that the original idea was of Bjoern A. 
> Zeeb :)

palo 1.6 will have a more accurate comment in the changelot

> workaround) but still lock when with my large finger I typo and:
> Command line for kernel: 'root=/dev/md2 HOME=/ console=ttyS0 TERM=vt102 
> palo_kernel=3/vmlinux-2.66-rc3'
> Selected kernel: /vmlinux-2.66-rc3-pa3 from partition 3
> ERROR: open /vmlinux-2.66-rc3-pa3 from partition 3 failed

Thanks for spotting those cases I missed.  They'll be caught in 1.6

	-P
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Hello all,

May be a better patch:
--- compiler-gcc3.h.orig	2004-06-03 17:01:16.000000000 +0200
+++ compiler-gcc3.h	2004-06-07 18:04:08.144851584 +0200
@@ -4,9 +4,9 @@
 #include <linux/compiler-gcc.h>

 #if __GNUC_MINOR__ >=3D 1  && __GNUC_MINOR__ < 4
-# define inline		__inline__ __attribute__((always_inline))
+# define inline		__inline__
+# define __inline	__inline__
 # define __inline__	__inline__ __attribute__((always_inline))
-# define __inline	__inline__ __attribute__((always_inline))
 #endif

 #if __GNUC_MINOR__ > 0
=3D=3D=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D=3D=3D

Any opinion?

Thanks,
    Joel

> -- Original Message --
> Date: Thu, 3 Jun 2004 17:17:01 +0200
> From: "Joel Soete" <soete.joel@tiscali.be>
> To: parisc-linux@parisc-linux.org
> Cc:
> Subject: [parisc-linux] linux and gcc 3.x question?
>
>
> Hello all,
>
> I just noticed that when I pre-compile some ncr53c8xx.c with gcc-3.3.4
on
> my p-l box as follow:
> "gcc -Wp,-MD,drivers/scsi/.zalon53c720.o.d -nostdinc -iwithprefix inclu=
de
> -D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes -Wno-trigraphs -fno-s=
trict-aliasing
> -fno-common -pipe -mno-space-regs -mfast-indirect-calls -mdisable-fpreg=
s
> -ffunction-sections -O2
> -DCONFIG_NCR53C8XX_PREFETCH -DSCSI_NCR_BIG_ENDIAN -DCONFIG_SCSI_NCR53C8=
XX_NO_WORD_TRANSFERS
>   -DKBUILD_BASENAME=3Dncr53c8xx -DKBUILD_MODNAME=3Dzalon7xx -E -o drive=
rs/scsi/ncr53c8xx.o
> drivers/scsi/ncr53c8xx.c"
>
> I got:
> [...]
> static __inline__ __attribute__((always_inline)) __attribute__((always_=
inline))
> int __attribute__((deprecated)) check_region(unsigned long s, unsigned
long
> n)
> [...]
>
> (2 time __attribute__((always_inline))?)
> It comes from:
>
> include/linux/compiler-gcc3.h
> [...]
>
> #if __GNUC_MINOR__ >=3D 1  && __GNUC_MINOR__ < 4
> # define inline         __inline__ __attribute__((always_inline))
> # define __inline__     __inline__ __attribute__((always_inline))
> # define __inline       __inline__ __attribute__((always_inline))
> #endif
> [...]
>
> because when I comment the second "define", I got better:
> [...]
> static __inline__ __attribute__((always_inline)) int __attribute__((dep=
recated))
> check_region(unsigned long s, unsigned long n)
> [...]
>
> I very doubt that's the right thing to do so if somebody as any idea?
>
> TIA,
>     Joel
>
>
> -----------------------------------------------------------------------=
-----------------
> Tiscali ADSL, 27,50 ?/mois...pendant 6 mois.
> La meilleure offre du march=E9 !
> http://reg.tiscali.be/default.asp?lg=3Dfr
>
>
>
>
> _______________________________________________
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> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



-------------------------------------------------------------------------=
---------------
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Carlos O'Donell wrote:
> On Wed, Jun 09, 2004 at 07:24:13PM +0200, Joel Soete wrote:
> 
>>>Hi all,
>>>
>>>I see that now debian gcc-snapshot is 3.5, I tried to rebuild glibc-2.3.3
>>>+ Carlos patches (June dated :) with this new compiler but I got a new
> 
> 
> Joel,
> 
> Are you just trying to ping to see if this thing builds with gcc-3.5?
> 
> c.
> 
It could be a point of view ;)

For my part it's just to continue investigation started some time ago.
Does it mean that it's useless for the moment?

Joel
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From: Jean-marc Harang <jean-marc.harang@laposte.net>
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Subject: [parisc-linux] couldn't find PA kernel changelogs
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Hello,	

I have a little question :

where are the changelogs files for PA kernels ?

I couldn't find them at http://cvs.parisc-linux.org/ :(

thanks,

jean-marc






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Jean-marc Harang wrote:
> Hello,	
> 
> I have a little question :
> 
> where are the changelogs files for PA kernels ?
> 
> I couldn't find them at http://cvs.parisc-linux.org/ :(
> 
> thanks,
> 
> jean-marc
> 
Well noticed, anyway at <http://parisc-linux.org/mailing-lists/index.html>
you can find mention that:
"
[snip]
parisc-linux-cvs [archive]

     A separate mailing exists for CVS as a read-only means for keeping track of revisions.

     To subscribe, please mail parisc-linux-cvs-request@lists.parisc-linux.org with the subject subscribe or use the web interface.
[snip]
"

hth,
	Joel
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] binutils 2.15?
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Hi all,

I read that now many arch try to update their toolchain to a new release;=

I so try to rebuild toolchain starting from binutils-2.15 (.0.91... from
ftp.kernel.org)
it build well but when I launch to rebuild gcc with those new binutil con=
figure
crashes immediately with:
"/usr/bin/ld: .got section not immediately after .plt section"

What do I mess and forget?

TIA,
    Joel


-------------------------------------------------------------------------=
---------------
Tiscali ADSL, 27,50 =80/mois...pendant 6 mois. 
La meilleure offre du march=E9 !
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Subject: Re: [parisc-linux] binutils 2.15?
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> I read that now many arch try to update their toolchain to a new release;
> I so try to rebuild toolchain starting from binutils-2.15 (.0.91... from
> ftp.kernel.org)
> it build well but when I launch to rebuild gcc with those new binutil configure
> crashes immediately with:
> "/usr/bin/ld: .got section not immediately after .plt section"

The following change appears to have introduced this problem:

CVSROOT:        /cvs/src
Module name:    src
Changes by:     jakub@sourceware.org    2004-05-11 17:08:32

Modified files:
	bfd            : ChangeLog 
	include        : ChangeLog 
	binutils       : ChangeLog 

Log message:
	bfd/
	* elflink.c (elf_bfd_final_link): Don't output STT_SECTION symbol
	into .dynsym if elf_section_data (sec)->dynindx <= 0.
	Adjust counting of last_local.
	(_bfd_elf_link_renumber_dynsyms): Don't assign dynindx to sections
	other than SHT_PROGBITS/SHT_NOBITS and neither for .got/.got.plt/.plt
	created by the linker nor !SHF_ALLOC.
										
	* elf32-i386.c (elf_i386_finish_dynamic_sections): Point
	DT_PLTGOT to the start of the .got.plt section instead of the
	.got output section.  Set sh_entsize for .got section in addition
	to .got.plt.
	...

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] binutils 2.15?
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On Mon, Jun 14, 2004 at 12:09:16AM -0400, John David Anglin wrote:
> > I read that now many arch try to update their toolchain to a new release;
> > I so try to rebuild toolchain starting from binutils-2.15 (.0.91... from
> > ftp.kernel.org)
> > it build well but when I launch to rebuild gcc with those new binutil configure
> > crashes immediately with:
> > "/usr/bin/ld: .got section not immediately after .plt section"
> 
> The following change appears to have introduced this problem:

First of all, can you explain why hppa needs .got after .plt?

	Jakub
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> >Are you just trying to ping to see if this thing builds with gcc-3.5?
> >
> It could be a point of view ;)
> 
> For my part it's just to continue investigation started some time ago.
> Does it mean that it's useless for the moment?

It's not useless, but it's a difficult problem. Eventually we have to
have it working, but just building and saying "it doesn't build" is only
the first step :(

c.

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On Mon, Jun 14, 2004 at 05:25:20AM +0200, Jakub Jelinek wrote:
> First of all, can you explain why hppa needs .got after .plt?

There's a lazy linking stub inserted at the end of the .plt section that
loads the .got address by

  b,l	1b,%r20
  depi	0,31,2,%r20

ie. it depends on .got immediately following these instructions.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre
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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] ncr53c8xx patch for c110
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This is a multi-part message in MIME format.
--------------080503020707030400040406
Content-Type: text/plain; charset=us-ascii; format=flowed
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Hello James & Grant,



Joel Soete wrote:
> 
> otc I trust that backporting sym_scatter() into ncr_scatter() is a fix 
> ;) (i was not very sure)
[snip]
> 
> 
> James Bottomley wrote:
> 
>> Could you try this.  It doesn't fix the problems in the ncr driver, but
>> it does force the block layer to respect the DISABLE_CLUSTERING flag.
>>
>> James
>>
>> ===== drivers/block/ll_rw_blk.c 1.244 vs edited =====
>> --- 1.244/drivers/block/ll_rw_blk.c    2004-05-29 11:18:19 -05:00
>> +++ edited/drivers/block/ll_rw_blk.c    2004-06-18 09:27:19 -05:00
>> @@ -850,7 +850,7 @@
>>              continue;
>>          }
>>  new_segment:
>> -        if (BIOVEC_VIRT_MERGEABLE(bvprv, bv) &&
>> +        if (cluster && BIOVEC_VIRT_MERGEABLE(bvprv, bv) &&
>>              !BIOVEC_VIRT_OVERSIZE(hw_seg_size + bv->bv_len)) {
>>              hw_seg_size += bv->bv_len;
>>          } else {
>>
>>
> 
I just test your patch and the following "backport" of sym_scatter in ncr53c8xx:
--- linux-2.6.7-pa1-wrk/drivers/scsi/ncr53c8xx.h.orig   2004-06-18 20:30:09.000000000 +0200
+++ linux-2.6.7-pa1-wrk/drivers/scsi/ncr53c8xx.h        2004-06-18 21:15:45.703972000 +0200
@@ -48,6 +48,18 @@

  #include "sym53c8xx_defs.h"

+/*
+       Build a scatter/gather entry.
+       see sym53c8xx_2/sym_hipd.h for more detailed sym_build_sge()
+       implementation ;)
+ */
+
+#define ncr_build_sge(np, data, badd, len)     \
+do {                                           \
+       (data)->addr = cpu_to_scr(badd);        \
+       (data)->size = cpu_to_scr(len);         \
+} while (0)
+
  /*==========================================================
  **
  **     Structures used by the detection routine to transmit
--- linux-2.6.7-pa1-wrk/drivers/scsi/ncr53c8xx.c.orig   2004-05-30 01:28:20.000000000 +0200
+++ linux-2.6.7-pa1-wrk/drivers/scsi/ncr53c8xx.c        2004-06-18 21:53:34.803972000 +0200
@@ -91,7 +91,7 @@
  */

  /* Name and version of the driver */
-#define SCSI_NCR_DRIVER_NAME   "ncr53c8xx-3.4.3e"
+#define SCSI_NCR_DRIVER_NAME   "ncr53c8xx-3.4.3f"

  #define SCSI_NCR_DEBUG_FLAGS   (0)

@@ -839,7 +839,7 @@
         struct scr_tblmove smsg  ;
         struct scr_tblmove cmd   ;
         struct scr_tblmove sense ;
-       struct scr_tblmove data [MAX_SCATTER];
+       struct scr_tblmove data[MAX_SCATTER];
  };


@@ -3845,7 +3845,7 @@

         direction = scsi_data_direction(cmd);
         if (direction != SCSI_DATA_NONE) {
-               segments = ncr_scatter (np, cp, cp->cmd);
+               segments = ncr_scatter(np, cp, cp->cmd);
                 if (segments < 0) {
                         ncr_free_ccb(np, cp);
                         return(DID_ERROR);
@@ -7575,44 +7575,57 @@
  **     sizes to the data segment array.
  */

-static int     ncr_scatter(struct ncb *np, struct ccb *cp, struct scsi_cmnd *cmd)
+static int ncr_scatter_no_sglist(struct ncb *np, struct ccb *cp, struct scsi_cmnd *cmd)
  {
-       struct scr_tblmove *data;
-       int segment     = 0;
-       int use_sg      = (int) cmd->use_sg;
+       struct scr_tblmove *data = &cp->phys.data[MAX_SCATTER - 1];
+       int segment;

-       data            = cp->phys.data;
-       cp->data_len    = 0;
+       cp->data_len = cmd->request_bufflen;

-       if (!use_sg) {
-               if (cmd->request_bufflen) {
-                       u_long baddr = map_scsi_single_data(np, cmd);
-
-                       data = &data[MAX_SCATTER - 1];
-                       data[0].addr = cpu_to_scr(baddr);
-                       data[0].size = cpu_to_scr(cmd->request_bufflen);
-                       cp->data_len = cmd->request_bufflen;
+       if (cmd->request_bufflen) {
+               dma_addr_t baddr = map_scsi_single_data(np, cmd);
+               if (baddr) {
+                       ncr_build_sge(np, data, baddr, cmd->request_bufflen);
                         segment = 1;
+               } else {
+                       segment = -2;
                 }
+       } else {
+               segment = 0;
         }
-       else if (use_sg <= MAX_SCATTER) {
+
+       return segment;
+}
+
+static int ncr_scatter(struct ncb *np, struct ccb *cp, struct scsi_cmnd *cmd)
+{
+       int segment     = 0;
+       int use_sg      = (int) cmd->use_sg;
+
+       cp->data_len    = 0;
+
+       if (!use_sg)
+               segment = ncr_scatter_no_sglist(np, cp, cmd);
+       else if ((use_sg = map_scsi_sg_data(np, cmd)) > 0) {
                 struct scatterlist *scatter = (struct scatterlist *)cmd->buffer;
+               struct scr_tblmove *data;
+
+               if (use_sg > MAX_SCATTER) {
+                       unmap_scsi_data(np, cmd);
+                       return -1;
+               }
+
+               data = &cp->phys.data[MAX_SCATTER - use_sg];

-               use_sg = map_scsi_sg_data(np, cmd);
-               data = &data[MAX_SCATTER - use_sg];
+               for (segment = 0; segment < use_sg; segment++) {
+                       dma_addr_t baddr = sg_dma_address(&scatter[segment]);
+                       unsigned int len = sg_dma_len(&scatter[segment]);

-               while (segment < use_sg) {
-                       u_long baddr = scsi_sg_dma_address(&scatter[segment]);
-                       unsigned int len = scsi_sg_dma_len(&scatter[segment]);
-
-                       data[segment].addr = cpu_to_scr(baddr);
-                       data[segment].size = cpu_to_scr(len);
-                       cp->data_len      += len;
-                       ++segment;
+                       ncr_build_sge(np, &data[segment], baddr, len);
+                       cp->data_len += len;
                 }
-       }
-       else {
-               return -1;
+       } else {
+               segment = -2;
         }

         return segment;
=========><=========

And all works fine now for me. Unfortunately I don't have other model (C, D, R, J or K) using the same driver to test it more :(

I don't have any cvs ci access, so if there are no negative feedback can somebody ci.

Thanks in advance,
	Joel

PS: I just noticed that this cut&past didn't respect my patch tabs (became 8 space) so I attache also the original diff file 
(sorry for inconvenience

--------------080503020707030400040406
Content-Type: text/plain;
 name="ncr53c8xx.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="ncr53c8xx.diff"

--- linux-2.6.7-pa1-wrk/drivers/scsi/ncr53c8xx.h.orig	2004-06-18 20:30:09.000000000 +0200
+++ linux-2.6.7-pa1-wrk/drivers/scsi/ncr53c8xx.h	2004-06-18 21:15:45.703972000 +0200
@@ -48,6 +48,18 @@
 
 #include "sym53c8xx_defs.h"
 
+/*
+	Build a scatter/gather entry.
+	see sym53c8xx_2/sym_hipd.h for more detailed sym_build_sge()
+	implementation ;)
+ */
+
+#define ncr_build_sge(np, data, badd, len)	\
+do {						\
+	(data)->addr = cpu_to_scr(badd);	\
+	(data)->size = cpu_to_scr(len);		\
+} while (0)
+
 /*==========================================================
 **
 **	Structures used by the detection routine to transmit 
--- linux-2.6.7-pa1-wrk/drivers/scsi/ncr53c8xx.c.orig	2004-05-30 01:28:20.000000000 +0200
+++ linux-2.6.7-pa1-wrk/drivers/scsi/ncr53c8xx.c	2004-06-18 21:53:34.803972000 +0200
@@ -91,7 +91,7 @@
 */
 
 /* Name and version of the driver */
-#define SCSI_NCR_DRIVER_NAME	"ncr53c8xx-3.4.3e"
+#define SCSI_NCR_DRIVER_NAME	"ncr53c8xx-3.4.3f"
 
 #define SCSI_NCR_DEBUG_FLAGS	(0)
 
@@ -839,7 +839,7 @@
 	struct scr_tblmove smsg  ;
 	struct scr_tblmove cmd   ;
 	struct scr_tblmove sense ;
-	struct scr_tblmove data [MAX_SCATTER];
+	struct scr_tblmove data[MAX_SCATTER];
 };
 
 
@@ -3845,7 +3845,7 @@
 
 	direction = scsi_data_direction(cmd);
 	if (direction != SCSI_DATA_NONE) {
-		segments = ncr_scatter (np, cp, cp->cmd);
+		segments = ncr_scatter(np, cp, cp->cmd);
 		if (segments < 0) {
 			ncr_free_ccb(np, cp);
 			return(DID_ERROR);
@@ -7575,44 +7575,57 @@
 **	sizes to the data segment array.
 */
 
-static	int	ncr_scatter(struct ncb *np, struct ccb *cp, struct scsi_cmnd *cmd)
+static int ncr_scatter_no_sglist(struct ncb *np, struct ccb *cp, struct scsi_cmnd *cmd)
 {
-	struct scr_tblmove *data;
-	int segment	= 0;
-	int use_sg	= (int) cmd->use_sg;
+	struct scr_tblmove *data = &cp->phys.data[MAX_SCATTER - 1];
+	int segment;
 
-	data		= cp->phys.data;
-	cp->data_len	= 0;
+	cp->data_len = cmd->request_bufflen;
 
-	if (!use_sg) {
-		if (cmd->request_bufflen) {
-			u_long baddr = map_scsi_single_data(np, cmd);
-
-			data = &data[MAX_SCATTER - 1];
-			data[0].addr = cpu_to_scr(baddr);
-			data[0].size = cpu_to_scr(cmd->request_bufflen);
-			cp->data_len = cmd->request_bufflen;
+	if (cmd->request_bufflen) {
+		dma_addr_t baddr = map_scsi_single_data(np, cmd);
+		if (baddr) {
+			ncr_build_sge(np, data, baddr, cmd->request_bufflen);
 			segment = 1;
+		} else {
+			segment = -2;
 		}
+	} else {
+		segment = 0;
 	}
-	else if (use_sg <= MAX_SCATTER) {
+
+	return segment;
+}
+
+static int ncr_scatter(struct ncb *np, struct ccb *cp, struct scsi_cmnd *cmd)
+{
+	int segment	= 0;
+	int use_sg	= (int) cmd->use_sg;
+
+	cp->data_len	= 0;
+
+	if (!use_sg)
+		segment = ncr_scatter_no_sglist(np, cp, cmd);
+	else if ((use_sg = map_scsi_sg_data(np, cmd)) > 0) {
 		struct scatterlist *scatter = (struct scatterlist *)cmd->buffer;
+		struct scr_tblmove *data;
+
+		if (use_sg > MAX_SCATTER) {
+			unmap_scsi_data(np, cmd);
+			return -1;
+		}
+
+		data = &cp->phys.data[MAX_SCATTER - use_sg];
 
-		use_sg = map_scsi_sg_data(np, cmd);
-		data = &data[MAX_SCATTER - use_sg];
+		for (segment = 0; segment < use_sg; segment++) {
+			dma_addr_t baddr = sg_dma_address(&scatter[segment]);
+			unsigned int len = sg_dma_len(&scatter[segment]);
 
-		while (segment < use_sg) {
-			u_long baddr = scsi_sg_dma_address(&scatter[segment]);
-			unsigned int len = scsi_sg_dma_len(&scatter[segment]);

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Xref: news.gmane.org gmane.linux.ports.parisc:24847

> Hello James & Grant,
> Joel Soete wrote:
>>
>> otc I trust that backporting sym_scatter() into ncr_scatter() is a fix
>> ;) (i was not very sure)
> [snip]
>>
>>
>> James Bottomley wrote:
>>
>>> Could you try this.  It doesn't fix the problems in the ncr driver, but
>>> it does force the block layer to respect the DISABLE_CLUSTERING flag.
>>>
>>> James
>>>
>>> ===== drivers/block/ll_rw_blk.c 1.244 vs edited =====
>>> --- 1.244/drivers/block/ll_rw_blk.c    2004-05-29 11:18:19 -05:00
>>> +++ edited/drivers/block/ll_rw_blk.c    2004-06-18 09:27:19 -05:00
>>> @@ -850,7 +850,7 @@
>>>              continue;
>>>          }
>>>  new_segment:
>>> -        if (BIOVEC_VIRT_MERGEABLE(bvprv, bv) &&
>>> +        if (cluster && BIOVEC_VIRT_MERGEABLE(bvprv, bv) &&
>>>              !BIOVEC_VIRT_OVERSIZE(hw_seg_size + bv->bv_len)) {
>>>              hw_seg_size += bv->bv_len;
>>>          } else {
>>>
>>>
>>
> I just test your patch and the following "backport" of sym_scatter in
> ncr53c8xx:
> --- linux-2.6.7-pa1-wrk/drivers/scsi/ncr53c8xx.h.orig   2004-06-18
> 20:30:09.000000000 +0200
> +++ linux-2.6.7-pa1-wrk/drivers/scsi/ncr53c8xx.h        2004-06-18
> 21:15:45.703972000 +0200
> @@ -48,6 +48,18 @@
>
>   #include "sym53c8xx_defs.h"
>
> +/*
> +       Build a scatter/gather entry.
> +       see sym53c8xx_2/sym_hipd.h for more detailed sym_build_sge()
> +       implementation ;)
> + */
> +
> +#define ncr_build_sge(np, data, badd, len)     \
> +do {                                           \
> +       (data)->addr = cpu_to_scr(badd);        \
> +       (data)->size = cpu_to_scr(len);         \
> +} while (0)
> +
>   /*==========================================================
>   **
>   **     Structures used by the detection routine to transmit
> --- linux-2.6.7-pa1-wrk/drivers/scsi/ncr53c8xx.c.orig   2004-05-30
> 01:28:20.000000000 +0200
> +++ linux-2.6.7-pa1-wrk/drivers/scsi/ncr53c8xx.c        2004-06-18
> 21:53:34.803972000 +0200
> @@ -91,7 +91,7 @@
>   */
>
>   /* Name and version of the driver */
> -#define SCSI_NCR_DRIVER_NAME   "ncr53c8xx-3.4.3e"
> +#define SCSI_NCR_DRIVER_NAME   "ncr53c8xx-3.4.3f"
>
>   #define SCSI_NCR_DEBUG_FLAGS   (0)
>
> @@ -839,7 +839,7 @@
>          struct scr_tblmove smsg  ;
>          struct scr_tblmove cmd   ;
>          struct scr_tblmove sense ;
> -       struct scr_tblmove data [MAX_SCATTER];
> +       struct scr_tblmove data[MAX_SCATTER];
>   };
>
>
> @@ -3845,7 +3845,7 @@
>
>          direction = scsi_data_direction(cmd);
>          if (direction != SCSI_DATA_NONE) {
> -               segments = ncr_scatter (np, cp, cp->cmd);
> +               segments = ncr_scatter(np, cp, cp->cmd);
>                  if (segments < 0) {
>                          ncr_free_ccb(np, cp);
>                          return(DID_ERROR);
> @@ -7575,44 +7575,57 @@
>   **     sizes to the data segment array.
>   */
>
> -static int     ncr_scatter(struct ncb *np, struct ccb *cp, struct
> scsi_cmnd *cmd)
> +static int ncr_scatter_no_sglist(struct ncb *np, struct ccb *cp, struct
> scsi_cmnd *cmd)
>   {
> -       struct scr_tblmove *data;
> -       int segment     = 0;
> -       int use_sg      = (int) cmd->use_sg;
> +       struct scr_tblmove *data = &cp->phys.data[MAX_SCATTER - 1];
> +       int segment;
>
> -       data            = cp->phys.data;
> -       cp->data_len    = 0;
> +       cp->data_len = cmd->request_bufflen;
>
> -       if (!use_sg) {
> -               if (cmd->request_bufflen) {
> -                       u_long baddr = map_scsi_single_data(np, cmd);
> -
> -                       data = &data[MAX_SCATTER - 1];
> -                       data[0].addr = cpu_to_scr(baddr);
> -                       data[0].size = cpu_to_scr(cmd->request_bufflen);
> -                       cp->data_len = cmd->request_bufflen;
> +       if (cmd->request_bufflen) {
> +               dma_addr_t baddr = map_scsi_single_data(np, cmd);
> +               if (baddr) {
> +                       ncr_build_sge(np, data, baddr,
> cmd->request_bufflen);
>                          segment = 1;
> +               } else {
> +                       segment = -2;
>                  }
> +       } else {
> +               segment = 0;
>          }
> -       else if (use_sg <= MAX_SCATTER) {
> +
> +       return segment;
> +}
> +
> +static int ncr_scatter(struct ncb *np, struct ccb *cp, struct scsi_cmnd
> *cmd)
> +{
> +       int segment     = 0;
> +       int use_sg      = (int) cmd->use_sg;
> +
> +       cp->data_len    = 0;
> +
> +       if (!use_sg)
> +               segment = ncr_scatter_no_sglist(np, cp, cmd);
> +       else if ((use_sg = map_scsi_sg_data(np, cmd)) > 0) {
>                  struct scatterlist *scatter = (struct scatterlist
> *)cmd->buffer;
> +               struct scr_tblmove *data;
> +
> +               if (use_sg > MAX_SCATTER) {
> +                       unmap_scsi_data(np, cmd);
> +                       return -1;
> +               }
> +
> +               data = &cp->phys.data[MAX_SCATTER - use_sg];
>
> -               use_sg = map_scsi_sg_data(np, cmd);
> -               data = &data[MAX_SCATTER - use_sg];
> +               for (segment = 0; segment < use_sg; segment++) {
> +                       dma_addr_t baddr =
> sg_dma_address(&scatter[segment]);
> +                       unsigned int len = sg_dma_len(&scatter[segment]);
>
> -               while (segment < use_sg) {
> -                       u_long baddr =
> scsi_sg_dma_address(&scatter[segment]);
> -                       unsigned int len =
> scsi_sg_dma_len(&scatter[segment]);
> -
> -                       data[segment].addr = cpu_to_scr(baddr);
> -                       data[segment].size = cpu_to_scr(len);
> -                       cp->data_len      += len;
> -                       ++segment;
> +                       ncr_build_sge(np, &data[segment], baddr, len);
> +                       cp->data_len += len;
>                  }
> -       }
> -       else {
> -               return -1;
> +       } else {
> +               segment = -2;
>          }
>
>          return segment;
> =========><=========
>
> And all works fine now for me. Unfortunately I don't have other model (C,
> D, R, J or K) using the same driver to test it more :(
>
> I don't have any cvs ci access, so if there are no negative feedback can
> somebody ci.
>
> Thanks in advance,
> 	Joel

Hi folks,

Excellent! Just tried this patch on my C180 and can confirm it works.
I'll give it a spin on the B132L too - but the box is heavily tied up
compiling today.

Thanks for working on this Joel.

-Andy
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Xref: news.gmane.org gmane.linux.ports.parisc:24848

On Fri, Jun 18, 2004 at 08:01:43PM +0000, Joel Soete wrote:
> And all works fine now for me. Unfortunately I don't have other model (C, 
> D, R, J or K) using the same driver to test it more :(
> 
> I don't have any cvs ci access, so if there are no negative feedback can 
> somebody ci.

James owns this. I'll commit it if he tells me it's ok.

I didn't fully review this patch because of extra white space
changes like this one:

> -	struct scr_tblmove data [MAX_SCATTER];
> +	struct scr_tblmove data[MAX_SCATTER];

Not a reason to reject the patch. but it would be nice
if you submitted white space edits seperately.

> PS: I just noticed that this cut&past didn't respect my patch tabs (became 
> 8 space) so I attache also the original diff file (sorry for inconvenience

cut/paste almost nevery works.
Use an editor which can inline the patch file and sends mail
as plain/text. plain/text attachments work for me though it's
preferable to inline the patch.

thanks,
grant
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From: "Andy Walker" <andy@puszczka.com>
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Subject: Re: [parisc-linux] ncr53c8xx patch for c110
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To: "Joel Soete" <soete.joel@tiscali.be>
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> Hello James & Grant,
>
> Joel Soete wrote:
>>
>> otc I trust that backporting sym_scatter() into ncr_scatter() is a fix
>> ;) (i was not very sure)

<..snip..>

Patch works fine on the B132L too :-) As far as I know there wasn't
a problem here before (only Ravens seemed affected), but the patch
certainly didn't break anything! The machine has been constantly
compiling big packages (gnome/gtk/perl etc.) since the reboot,
including downloads from portage, large copies.. so the disk has
been getting a thrashing with no hiccoughs.

-Andy
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From: Carlos O'Donell <carlos@baldric.uwo.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] binutils 2.15?
Date: Mon, 21 Jun 2004 11:18:00 -0400
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	<200406140409.i5E49HYi003897@hiauly1.hia.nrc.ca>
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To: Alan Modra <amodra@bigpond.net.au>,
 Jakub Jelinek <jakub@redhat.com>,
 John David Anglin <dave@hiauly1.hia.nrc.ca>,
 parisc-linux@parisc-linux.org,
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> There's a lazy linking stub inserted at the end of the .plt section that
> loads the .got address by
> 
>   b,l	1b,%r20
>   depi	0,31,2,%r20
> 
> ie. it depends on .got immediately following these instructions.

My apologies for a tardy reply.

We don't *have* to depend on the .got immediately following these
instructions. Technically we look for a signature at the end of the PLT.
The code in glibc looks beyond the last relocation in the following 
equation:

ptr = reloc->r_offset + l_addr + PLT_ENTRY_SIZE + SIZEOF_PLT_STUB

And if it finds the signature at ptr[-2] and ptr[-1], then it
acknowledges that as the PLT stub. It then by proxy knows that the GOT
should be at ptr[0], but it doesn't have to rely strictly on this, I'm
more than willing to add more code to glibc to remove this restriction.

I just don't really know how other arches find the GOT at this early 
stage in ld.so's startup (e.g. elf_machine_runtime_setup()).

The only reason we use the GOT here is because we want to identify the
shared object by storing a pointer to the DSO link_map into GOT[1]. 
Which to tell you the truth, I'm sure has to do with something in 
binutils that I currently don't understand.

I'm slowly reviewing the binutils hppa code because I'd like to clean it
up / understand it enough to add TLS.

Jakub, I hope this helps, if someone has an idea then I would be more
than happy to implement the change and test the resulting
binutils/glibc.

Cheers,
Carlos.

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From: James Bottomley <James.Bottomley@steeleye.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] ncr53c8xx patch for c110
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On Mon, 2004-06-21 at 11:11, Joel Soete wrote:
> It should be. The c110 also have such LASI ASIC chip ;) and on its scsi
> port I connected a CRW drive. This week-end I tried to uncompress-untar
> the src of my working kernel tree burned on a cd. but the operation failled
> with an i/o error.
> At this moment, I didn't check more (too much focused on the ncr 720 patch)
> but I just check on my hpux b180 and there  is any pb to read the cd. So
> either the drive is realy broken (but I already reach to burn and scan a
> full 600Mb cd-rwwith a previous kernel) or there is a pb with 53c7[01]0
> driver too?
> 
> James can you give us your opinion about this ?

I know of no outstanding problems with the 53c700 driver in the 2.6
kernel (and I use it all the time, since my other voyager has a D700
53c700-66 device for its root discs).

James


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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] ncr53c8xx patch for c110
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> -- Original Message --
> Date: Mon, 21 Jun 2004 15:40:06 +0200 (CEST)
> From: "Andy Walker" <ajwalker@broadpark.no>
> To: "Joel Soete" <soete.joel@tiscali.be>
> Cc: parisc-linux@parisc-linux.org
> Subject: Re: [parisc-linux] ncr53c8xx patch for c110
>
>
> >>
> >> Patch works fine on the B132L too :-) As far as I know there wasn't
> >> a problem here before (only Ravens seemed affected), but the patch
> >> certainly didn't break anything!
> >
> > Umm you have right to check according
> > <http://www.openpa.net/systems/b-class.html>
> > model B132L (not B132L+) ,B160L are also equiped wuth NCR53C720 (as
well
> > as:
> >     *  735, 755 (ASP2)
> >     * B132L, B160L
> >     * C100, C110, C132L, C160L, C160, C180
> >     * D-Class
> >     * J200, J210, J210XC, J280, J282
> >     * K-Class
> >     * R380, R390  )
>
> Well, I know it has 720, but it doesn't have U2/U-turn which
> means ccio-dma.c isn't used (so the merge size hack wasn't
> needed on B-class).
ah yes I understand, it was very the couple U2/U-turn+NCR53C720 which was=

broken.

> Obviously its good to check that the fixed
> driver works properly,
Yes always ;)

> but this machine didn't have the Raven
> problem before your patch.
>
 ;)

> Incidentally, I spotted a report on the Gentoo forums of a 712
> with similar sounding lockups (stopped sometimes, usually when
> calculating module dependencies which is the first disk
> intensive thing the Gentoo boot process does assuming fsck
> doesn't need to run). But 712 only has 53C710 on LASI (using
> the 53C700 driver) so I guess it can't be related.

It should be. The c110 also have such LASI ASIC chip ;) and on its scsi
port I connected a CRW drive. This week-end I tried to uncompress-untar
the src of my working kernel tree burned on a cd. but the operation faill=
ed
with an i/o error.
At this moment, I didn't check more (too much focused on the ncr 720 patc=
h)
but I just check on my hpux b180 and there  is any pb to read the cd. So
either the drive is realy broken (but I already reach to burn and scan a
full 600Mb cd-rwwith a previous kernel) or there is a pb with 53c7[01]0
driver too?

James can you give us your opinion about this ?

Welcome,
    Joel


-------------------------------------------------------------------------=
--
NEW: Tiscali ADSL LIGHT, 28,95 EUR/mois, c'est le moment de faire le pas!=

http://reg.tiscali.be/default.asp?lg=3Dfr




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Subject: [parisc-linux] Matrox Mystique & C3000
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Hello list,
I recently got my mystique working with matroxfb and kernel 2.4.24 by
modifying the write/read functions in mga.h. Everything seems
fine when passing noinit to the module. Standard card initialization
however,  fails. Has anyone else observed the same problem with other matrox cards
(Millenium etc)?

I really do not understand why, it fails while probing the
video memory (writing then reading the same address).

	cheers,

	Ivar
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Subject: Re: [parisc-linux] Matrox Mystique & C3000
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On Tue, Jun 22, 2004 at 05:15:44PM +0200, Ivar wrote:
> Hello list,
> I recently got my mystique working with matroxfb and kernel 2.4.24 by
> modifying the write/read functions in mga.h. Everything seems
> fine when passing noinit to the module.

Actually I have "matroxfb=init" in my /etc/palo.conf, and my old
Matrox Millenium works fine. Dmesg says:

 kernel: matroxfb_base: falsely claims to have parameter mtrr
 kernel: matroxfb: Matrox Millennium (PCI) detected
 kernel: matroxfb: 640x480x8bpp (virtual: 640x13081)
 kernel: matroxfb: framebuffer at 0xF6000000, mapped to 0xf6000000,
                   size 8388608
 kernel: fb0: MATROX frame buffer device
 kernel: fb0: initializing hardware

However the driver sometimes doesn't init the matrox properly:
e.g. when I shut down and reboot the C3000 by hitting the On/Off button,
the machine will reboot, the matroxfb will initialize the card,  but
xdm will cause a kernel oops.
However when I physically disconnect the machine from the power
for a few seconds before I reboot, it always initializes the
graphics card fine.

> Standard card initialization however,  fails. Has anyone else
> observed the same problem with other matrox cards
> (Millenium etc)?

I have tried the same with Voodoo2, Voodoo3 3000 and a ATI Rage XL
(however none of them recently), and all failed.

> I really do not understand why, it fails while probing the
> video memory (writing then reading the same address).

Well, in my case the cards produced either a kernel oops (non-fatal),
or a crash or just no visible result (ie. blank screen).


Greetings,
  Max
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Hello all,

I find interesting to report the success of following test on my c110 with k-2.6.7-pa1 + ncr patch:

* I just tar my kernel src tree in a 'big' file of about 200Mb (previous patch that was enough to crash the system)
* I scp (ipv4 first) this file to my pc (it takes about 4:15 with a 10Mb nic that's a rate of less then 1MB/s Ok for me)
     (i do this from hppa to pc because Guy's report indicates that tx stuff was the pb)
* I recompile the kernels (pc & hppa) to add just CONFIG_EXPERIMENTAL & CONFIG_IPV6 (also CONFIG_IPV6_PRIVACY don't know yet if 
required)
* refering to <http://people.debian.org/~csmall/ipv6/setup.html> and with Guy's help, after reboot I choose the simplest way and
* config my second pc nic with 'ifconfig eth1 add 2001:0db8:0005:0006::79/64'
* config the buildin nic of my hppa with: 'ifconfig eth0 add 2001:db8:5:6::78/64'
* i can ping6 (added thanks to iputils-ping dpkg) each other ;)
* I just add those to ip6 address to my /etc/hosts:
2001:db8:5:6::78	hpal-ip6
2001:db8:5:6::79	sidh-ip6

* i re-launch scp of previous 200Mb file from hppa to pc and all is Ok ;)
* and do the reverse (pc to hppa) with same success (just a bit slowest: ie 4:47 min in place of 04:12)

Cheers,
	Joel

Grant Grundler wrote:
> On Tue, Jun 22, 2004 at 07:09:33PM +0200, Joel Soete wrote:
> 
>>Very intersecting, c3k is using a tulip as builtin nic (iirc) and
>>not ccio-dma.
> 
> 
> c3k is using sba_iommu.c instead.
> 
> 
>>OTC d250 (as well as c110) uses LASI ASIC interface.
>>
>>Grant could you let me know if this last nic also interface with ccio-dma?
> 
> 
> Yes. All IO goes through the IOMMU when it's part of the system.
> 
> 
>>even over my ncr patch on this d model?
> 
> 
> seems jejb would prefer to see your patch get committed and then
> move upstream.
> 
> 
>>Is this kind of interface also use the scatter/gather list?
> 
> 
> NICs don't scatter gather. They only map a single buffer at
> a time.
> 
> grant
> 
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Xref: news.gmane.org gmane.linux.ports.parisc:24856

On Sun, Jun 27, 2004 at 02:59:56PM +0000, Joel Soete wrote:
> Hello all,
> 
> I find interesting to report the success of following test on my c110
> with k-2.6.7-pa1 + ncr patch:
> 
> * I just tar my kernel src tree in a 'big' file of about 200Mb
>   (previous patch that was enough to crash the system)
> * I scp (ipv4 first) this file to my pc (it takes about 4:15 with
>   a 10Mb nic that's a rate of less then 1MB/s Ok for me)

BTW, what kind of NIC (ne2k, tulip, etherexpress, some 3com ...?)

>   (i do this from hppa to pc because Guy's report indicates that
>    tx stuff was the pb)

I'm still suspicious that the network card (ie. the driver) could
cause Guy's problem, although his kernel stack dump doesn't give
any indication and suggests to look somewhere else (ie. IPv6)

> * I recompile the kernels (pc & hppa) to add just CONFIG_EXPERIMENTAL & 
>   CONFIG_IPV6 (also CONFIG_IPV6_PRIVACY don't know yet if required)

If you don't assign a IPv6 address to a NIC manually, IPv6 does
create one automatically. With 'Privacy Extensions' enabled,
the address autoconfiguration uses 'random' IPv6 addresses instead
of deriving them from the MAC address (EUI-64).

Since you set up your IPv6 addresses manually, you don't need
CONFIG_IPV6_PRIVACY). BTW, you also have to explicitly turn those
'privacy extensions' on (via /proc) if you want to use it.

> * refering to <http://people.debian.org/~csmall/ipv6/setup.html>
>   and with Guy's help, after reboot I choose the simplest way and
> * config my second pc nic with 'ifconfig eth1 add 
>   2001:0db8:0005:0006::79/64'
> * config the buildin nic of my hppa with: 'ifconfig eth0 add 
>   2001:db8:5:6::78/64'
> * i can ping6 (added thanks to iputils-ping dpkg) each other ;)
> * I just add those to ip6 address to my /etc/hosts:
>   2001:db8:5:6::78	hpal-ip6
>   2001:db8:5:6::79	sidh-ip6
> * i re-launch scp of previous 200Mb file from hppa to pc and all is Ok ;)
> * and do the reverse (pc to hppa) with same success (just a bit
>   slowest: ie 4:47 min in place of 04:12)

Well, what else is different from Guy's config?
He's using the machine as a IPv6 router, so you might have to
simulate this aswell in order to trigger the same problem that Guy
has. As I said, I have virtually the same IPv6 setup as Guy has,
but I don't have the problem on my C3000.

Greetings,
   Max
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Xref: news.gmane.org gmane.linux.ports.parisc:24857



M. Grabert wrote:
> On Sun, Jun 27, 2004 at 02:59:56PM +0000, Joel Soete wrote:
> 
>>Hello all,
>>
>>I find interesting to report the success of following test on my c110
>>with k-2.6.7-pa1 + ncr patch:
>>
>>* I just tar my kernel src tree in a 'big' file of about 200Mb
>>  (previous patch that was enough to crash the system)
>>* I scp (ipv4 first) this file to my pc (it takes about 4:15 with
>>  a 10Mb nic that's a rate of less then 1MB/s Ok for me)
> 
> 
> BTW, what kind of NIC (ne2k, tulip, etherexpress, some 3com ...?)
>
umm I don't yet test hwinfo but btw dmesg tells me:

LASI 82596 driver - Revision: 1.30
Found i82596 at 0xffd07000, IRQ 87
CLASS: registering class device: ID = 'eth0'
eth0: 82596 at 0xffd07000, 00 60 B0 07 1E EA IRQ 87.

> 
>>  (i do this from hppa to pc because Guy's report indicates that
>>   tx stuff was the pb)
> 
> 
> I'm still suspicious that the network card (ie. the driver) could
> cause Guy's problem,

Should be: the builtin card is the same as the c110 (at least uses the same driver) but the additional one uses 3c509.c
(with one I had so much pb some time ago on my i386)

> although his kernel stack dump doesn't give
> any indication and suggests to look somewhere else (ie. IPv6)
>
The same for the ncr, it's only thanks to knowledge and experience of Grant, James, Matthew (sorry if I forget somebody else) that 
I reach to locate and fix the pb. Mel Gorman tool CodeViz just help me to figureout a bit how to read the stack dump but not 
really more.

> 
>>* I recompile the kernels (pc & hppa) to add just CONFIG_EXPERIMENTAL & 
>>  CONFIG_IPV6 (also CONFIG_IPV6_PRIVACY don't know yet if required)
> 
> 
> If you don't assign a IPv6 address to a NIC manually, IPv6 does
> create one automatically. With 'Privacy Extensions' enabled,
> the address autoconfiguration uses 'random' IPv6 addresses instead
> of deriving them from the MAC address (EUI-64).
> 
> Since you set up your IPv6 addresses manually, you don't need
> CONFIG_IPV6_PRIVACY). BTW, you also have to explicitly turn those
> 'privacy extensions' on (via /proc) if you want to use it.
> 
> 
>>* refering to <http://people.debian.org/~csmall/ipv6/setup.html>
>>  and with Guy's help, after reboot I choose the simplest way and
>>* config my second pc nic with 'ifconfig eth1 add 
>>  2001:0db8:0005:0006::79/64'
>>* config the buildin nic of my hppa with: 'ifconfig eth0 add 
>>  2001:db8:5:6::78/64'
>>* i can ping6 (added thanks to iputils-ping dpkg) each other ;)
>>* I just add those to ip6 address to my /etc/hosts:
>>  2001:db8:5:6::78	hpal-ip6
>>  2001:db8:5:6::79	sidh-ip6
>>* i re-launch scp of previous 200Mb file from hppa to pc and all is Ok ;)
>>* and do the reverse (pc to hppa) with same success (just a bit
>>  slowest: ie 4:47 min in place of 04:12)
> 
> 
> Well, what else is different from Guy's config?
> He's using the machine as a IPv6 router, so you might have to
> simulate this aswell in order to trigger the same problem that Guy
> has.
Yes, I just try step by step. More over I don't have second nic (and no chance no cache another one), so that will be difficult :(

> As I said, I have virtually the same IPv6 setup as Guy has,
> but I don't have the problem on my C3000.
> 
Thanks again,
	Joel
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M. Grabert wrote:
> On Sun, Jun 27, 2004 at 04:50:27PM +0000, Joel Soete wrote:
> 
>>>BTW, what kind of NIC (ne2k, tulip, etherexpress, some 3com ...?)
>>>
>>
>>umm I don't yet test hwinfo but btw dmesg tells me:
>>
>>LASI 82596 driver - Revision: 1.30
>>Found i82596 at 0xffd07000, IRQ 87
>>CLASS: registering class device: ID = 'eth0'
>>eth0: 82596 at 0xffd07000, 00 60 B0 07 1E EA IRQ 87.
> 
> 
> Ooops, sorry. I thought you also used a second NIC ...
> 
No pb.
> 
> I mean his additional network card (the 3com) could be the trouble
> maker.
> 
Well I also miss something important: this 3com is certainly a isa model and so btw uses the wax-eisa driver which afaik is not 
the must (http://lists.parisc-linux.org/pipermail/parisc-linux/2003-November/021613.html ?)

> 
>>Should be: the builtin card is the same as the c110 (at least uses the
>>same driver) but the additional one uses 3c509.c
>>(with one I had so much pb some time ago on my i386)
> 
> 
> And which I had so much trouble half a year ago in my C3000.
> 
Joel
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M. Grabert wrote:
> On Sun, Jun 27, 2004 at 06:02:22PM +0000, Joel Soete wrote:
> 
> 
>>>Well I also miss something important: this 3com is certainly a isa model 
>>>and so btw uses the wax-eisa driver which afaik is not the must 
>>>(http://lists.parisc-linux.org/pipermail/parisc-linux/2003-November/021613.html ?)
>>>
>>
>>Or more recent again:
>><http://lists.parisc-linux.org/pipermail/parisc-linux/2004-March/022686.html>
> 
> 
> Sorry to disappoint you (and me), but our theory of a broken EISA/network
> card driver is pointless. Guy already pointed out that he's only using
> the onboard lasi card,
Yes he remember me ()

> and that there is in fact no card in the EISA slot atm.
?
any way, in the dmesg he sent us this card appears well and I have no clue how much this card, even not used could disturbe its 
system?
> I even doubt the 3com network card driver (compiled as module) is loaded into
> kernel space.
> 
> Also interesting is the fact that his system is still running after the
> kernel oops, and only the network (IPv4 and IPv6) is not working anymore.

I presume that the developper find the fact to not being able to tx a data is less critical then lost to write data on disk?

> Might this indicate that it is not really IPv6-stack related, but the problem
> is somewhere else in the networking code?
> 
I have this feeling (so similar to my ncr pb: same lasi+ccio-dma drivers, when writing and with high i/o rate?)
It's possible that my patch is not enough or has border effect?
For the moment Guy as recompile a 2.6.6-pa4 with my patch and awaiting to reboot it.
If it unfortunately it still failled, I will ask to try a 2.6.3 (ie the last one I can boot without pb on my c110 ;)

Regards,
	Joel
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> > There's a lazy linking stub inserted at the end of the .plt section that
> > loads the .got address by
> > 
> >   b,l	1b,%r20
> >   depi	0,31,2,%r20
> > 
> > ie. it depends on .got immediately following these instructions.
> 
> My apologies for a tardy reply.
> 
> We don't *have* to depend on the .got immediately following these
> instructions. Technically we look for a signature at the end of the PLT.
> The code in glibc looks beyond the last relocation in the following 
> equation:
> 
> ptr = reloc->r_offset + l_addr + PLT_ENTRY_SIZE + SIZEOF_PLT_STUB
> 
> And if it finds the signature at ptr[-2] and ptr[-1], then it
> acknowledges that as the PLT stub. It then by proxy knows that the GOT
> should be at ptr[0], but it doesn't have to rely strictly on this, I'm
> more than willing to add more code to glibc to remove this restriction.

>>From my perspective, we need binutils to work with existing versions
of glibc.  While Carlos' offer to work on removing the restriction is
commendable, the details of this haven't been worked out or tested.
I believe that we need GOT after PLT until the glibc changes are
available and widely distributed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:24861

Hello James,

If still some interest for 2.4 I just backport some 2.6 stuff for your dr=
iver
53c700 to cleanup '... lvalues is deprecated warning':
--- linux-2.4.27-rc2-pa4mm/drivers/scsi/53c700.h.Orig	2004-06-29 10:24:01=
.766864352
+0200
+++ linux-2.4.27-rc2-pa4mm/drivers/scsi/53c700.h	2004-06-29 10:30:27.6472=
01624
+0200
@@ -109,18 +109,25 @@
 static inline void
 NCR_700_set_SXFER(Scsi_Device *SDp, __u8 sxfer)
 {
-	((unsigned long)SDp->hostdata) &=3D 0xffffff00;
-	((unsigned long)SDp->hostdata) |=3D sxfer & 0xff;
+	unsigned long l =3D (unsigned long)SDp->hostdata;
+
+	l &=3D 0xffffff00;
+	l |=3D sxfer & 0xff;
+	SDp->hostdata =3D (void *)l;
 }
-static inline __u8 NCR_700_get_SXFER(Scsi_Device *SDp)
+static inline __u8
+NCR_700_get_SXFER(Scsi_Device *SDp)
 {
 	return (((unsigned long)SDp->hostdata) & 0xff);
 }
 static inline void
 NCR_700_set_depth(Scsi_Device *SDp, __u8 depth)
 {
-	((unsigned long)SDp->hostdata) &=3D 0xffff00ff;
-	((unsigned long)SDp->hostdata) |=3D (0xff00 & (depth << 8));
+	unsigned long l =3D (unsigned long)SDp->hostdata;
+
+	l &=3D 0xffff00ff;
+	l |=3D (0xff00 & (depth << 8));
+	SDp->hostdata =3D (void *)l;
 }
 static inline __u8
 NCR_700_get_depth(Scsi_Device *SDp)
@@ -140,12 +147,18 @@
 static inline void
 NCR_700_set_flag(Scsi_Device *SDp, __u32 flag)
 {
-	((unsigned long)SDp->hostdata) |=3D (flag & 0xffff0000);
+	unsigned long l =3D (unsigned long)SDp->hostdata;
+
+	l |=3D (flag & 0xffff0000);
+	SDp->hostdata =3D (void *)l;
 }
 static inline void
 NCR_700_clear_flag(Scsi_Device *SDp, __u32 flag)
 {
-	((unsigned long)SDp->hostdata) &=3D ~(flag & 0xffff0000);
+	unsigned long l =3D (unsigned long)SDp->hostdata;
+
+	l &=3D ~(flag & 0xffff0000);
+	SDp->hostdata =3D (void *)l;
 }
 
 /* These represent the Nexus hashing functions.  A Nexus in SCSI terms
=3D=3D=3D=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D=3D=3D=3D

hth,
    Joel

PS: btw I also have similar small patches for upstream (crc32.c, readdir.=
c,
fbcon.c, ...). Do you know who can help me to submit it to Marcelo (I alr=
eady
try directly but no audience $) )

-------------------------------------------------------------------------=
--
NEW: Tiscali ADSL LIGHT, 28,95 EUR/mois, c'est le moment de faire le pas!=

http://reg.tiscali.be/default.asp?lg=3Dfr




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Carlos O'Donell wrote:
>>I can now reproduce what happend during check :)
>>and the crash occurs now at 0x401f67a8
>>
>>and ddd offers me a related dump window:
>>Dump of assembler code from 0x401f67a8 to 0x401f68a8:
>>    0x401f67a8:     ldw 0(,r25),r21
>>    0x401f67ac:     ldo 1115(r20),r20
> 
> 
> Joel, the most important code is what came *before* teh crash insn, you
> usually want atleast 16-32 insns before the crash to see what was going
> on, usually I trace back to try find the start of the function.
> 
> 
>>0002c77c <_nl_intern_locale_data>:
>>   2c77c:       6b c2 3f d9     stw rp,-14(,sp)
>>   2c780:       6f c6 00 80     stw,ma r6,40(,sp)
>>   2c784:       08 1a 02 46     copy r26,r6
>>   2c788:       6b c5 3f 89     stw r5,-3c(,sp)
>>   2c78c:       08 19 02 45     copy r25,r5
>>   2c790:       6b c3 3f 99     stw r3,-34(,sp)
>>   2c794:       08 18 02 43     copy r24,r3
>>   2c798:       6b c4 3f 91     stw r4,-38(,sp)
>>   2c79c:       8f 0e 81 d0     cmpib,>>= 7,r24,2c88c <_nl_intern_locale_data+0x110>
>>   2c7a0:       6b d3 3f c1     stw r19,-20(,sp)
>>   2c7a4:       22 98 04 00     ldil 20030000,r20
>>==>2c7a8:       0f 20 10 95     ldw 0(,r25),r21
> 
> 
> You are trying to get data from a pointer passed in as the second
> parameter to the function, you want to see the value of r25 before the
> load to see if it is valid. In gdb you can print register values or just
> use the info command to see all the regs. You can display regs by using
> '$r25' AFAIR, though the format may vary.
> 
ah I see
And btw if I put a break at 0x401f677c (corresponding to line 2c77c: the first routine insn), I would also be able to find the 
address from where it's called (just have to find back the right register).
Thanks for the tips.

> 
>>(gdb) break set_dp (if i well understand?)
> 
> 
> Yes, that's *very* early on. I try to break the startup in fixup().
> 
ok I will do so ;)

> 
>>and the prgm stop well at the requested address but unforunately bt still
>>refuse to unwind :(
> 
> 
> You won't get *any* usefull unwind info from debugging the loader, it's
> all very difficult during the early relocation process because the
> debugger doesn't understand what is being loaded where.
>  
Ok
> 
>>It seems so that the libc itself doesn't hown enough info for unwind. Is
>>-g option is enough or is there another configure option I missed or is
>>it possible to abuse a bit makefile files to force the libc build with more
>>usable info?
> 
> 
> There are tricks to debug programs that use the new loader, but if the
> loader is dying then there isn't much you can do except hack at from
> assembly.
> 
In fact I don't expect very much from assembly but hope more from gdb tracing back the way of process.
(I don't have any background about any loader so have all to learn :)

Thanks for advises,
	Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:24863

Randolph,

>
> sorry about that.
Don't worry :)

> try this one instead.
>
That compiles fine now ;) (with my c110 config)

I also test on n4k with 4Gb of ram and seems to works:
# cat /proc/meminfo
MemTotal:      4194548 kB
MemFree:       1994952 kB
Buffers:          3712 kB
Cached:          25784 kB
SwapCached:          0 kB
Active:          22864 kB
Inactive:        15808 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      4194548 kB
LowFree:       1994952 kB
SwapTotal:      250872 kB
SwapFree:       250872 kB
Dirty:             532 kB
Writeback:           0 kB
Mapped:          18104 kB
Slab:             7524 kB
Committed_AS:    15968 kB
PageTables:        984 kB
VmallocTotal:   245728 kB
VmallocUsed:       268 kB
VmallocChunk:   245388 kB

:)

Any way as you noticed a part seems to be view as 'used' by top:
top - 11:58:41 up 19 min,  1 user,  load average: 0.16, 0.17, 0.18
Tasks:  51 total,   1 running,  50 sleeping,   0 stopped,   0 zombie
Cpu(s):  1.3% us,  1.7% sy,  0.0% ni, 91.1% id,  0.0% wa,  0.0% hi,  6.0%=

si
Mem:   4194548k total,  2200236k used,  1994312k free,     3756k buffers
Swap:   250872k total,        0k used,   250872k free,    25844k cached
[...]

(Just after a reboot, before there are only about 50Mb of used mem?)

But I also encounter a weird pb after the build and the install of severa=
ll
modules:
WARNING: /lib/modules/2.6.7-pa7/build/net/sunrpc/sunrpc.ko needs unknown
symbol node_data
WARNING: /lib/modules/2.6.7-pa7/build/net/sunrpc/auth_gss/auth_rpcgss.ko
needs unknown symbol pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/build/net/sunrpc/auth_gss/auth_rpcgss.ko
needs unknown symbol node_data
WARNING: /lib/modules/2.6.7-pa7/build/net/core/pktgen.ko needs unknown sy=
mbol
node_data
WARNING: /lib/modules/2.6.7-pa7/build/fs/xfs/xfs.ko needs unknown symbol
pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/build/fs/xfs/xfs.ko needs unknown symbol
node_data
WARNING: /lib/modules/2.6.7-pa7/build/fs/nfs/nfs.ko needs unknown symbol
node_data
WARNING: /lib/modules/2.6.7-pa7/build/fs/jfs/jfs.ko needs unknown symbol
pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/build/fs/jfs/jfs.ko needs unknown symbol
node_data
WARNING: /lib/modules/2.6.7-pa7/build/drivers/scsi/qlogicfc.ko needs unkn=
own
symbol pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/build/drivers/scsi/qlogicfc.ko needs unkn=
own
symbol node_data
WARNING: /lib/modules/2.6.7-pa7/build/drivers/scsi/qla1280.ko needs unkno=
wn
symbol pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/build/drivers/scsi/qla1280.ko needs unkno=
wn
symbol node_data
WARNING: /lib/modules/2.6.7-pa7/build/drivers/scsi/qla2xxx/qla2xxx.ko nee=
ds
unknown symbol pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/build/drivers/scsi/qla2xxx/qla2xxx.ko nee=
ds
unknown symbol node_data
WARNING: /lib/modules/2.6.7-pa7/build/drivers/net/acenic.ko needs unknown=

symbol pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/build/drivers/net/acenic.ko needs unknown=

symbol node_data
WARNING: /lib/modules/2.6.7-pa7/build/drivers/net/wireless/airo.ko needs
unknown symbol pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/build/drivers/net/wireless/airo.ko needs
unknown symbol node_data
WARNING: /lib/modules/2.6.7-pa7/build/crypto/tcrypt.ko needs unknown symb=
ol
pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/build/crypto/tcrypt.ko needs unknown symb=
ol
node_data
WARNING: /lib/modules/2.6.7-pa7/kernel/fs/xfs/xfs.ko needs unknown symbol=

pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/kernel/fs/xfs/xfs.ko needs unknown symbol=

node_data
WARNING: /lib/modules/2.6.7-pa7/kernel/fs/nfs/nfs.ko needs unknown symbol=

node_data
WARNING: /lib/modules/2.6.7-pa7/kernel/fs/jfs/jfs.ko needs unknown symbol=

pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/kernel/fs/jfs/jfs.ko needs unknown symbol=

node_data
WARNING: /lib/modules/2.6.7-pa7/kernel/net/core/pktgen.ko needs unknown
symbol node_data
WARNING: /lib/modules/2.6.7-pa7/kernel/net/sunrpc/sunrpc.ko needs unknown=

symbol node_data
WARNING: /lib/modules/2.6.7-pa7/kernel/net/sunrpc/auth_gss/auth_rpcgss.ko=

needs unknown symbol pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/kernel/net/sunrpc/auth_gss/auth_rpcgss.ko=

needs unknown symbol node_data
WARNING: /lib/modules/2.6.7-pa7/kernel/crypto/tcrypt.ko needs unknown sym=
bol
pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/kernel/crypto/tcrypt.ko needs unknown sym=
bol
node_data
WARNING: /lib/modules/2.6.7-pa7/kernel/drivers/scsi/qlogicfc.ko needs unk=
nown
symbol pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/kernel/drivers/scsi/qlogicfc.ko needs unk=
nown
symbol node_data
WARNING: /lib/modules/2.6.7-pa7/kernel/drivers/scsi/qla2xxx/qla2xxx.ko ne=
eds
unknown symbol pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/kernel/drivers/scsi/qla2xxx/qla2xxx.ko ne=
eds
unknown symbol node_data
WARNING: /lib/modules/2.6.7-pa7/kernel/drivers/scsi/qla1280.ko needs unkn=
own
symbol pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/kernel/drivers/scsi/qla1280.ko needs unkn=
own
symbol node_data
WARNING: /lib/modules/2.6.7-pa7/kernel/drivers/net/wireless/airo.ko needs=

unknown symbol pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/kernel/drivers/net/wireless/airo.ko needs=

unknown symbol node_data
WARNING: /lib/modules/2.6.7-pa7/kernel/drivers/net/acenic.ko needs unknow=
n
symbol pfnnid_map
WARNING: /lib/modules/2.6.7-pa7/kernel/drivers/net/acenic.ko needs unknow=
n
symbol node_data

any idea?

(I read a similar pb http://lists.parisc-linux.org/pipermail/parisc-linux=
/2004-February/022418.html
but don't find the fix :( )

( I trust you can can safely comit :)

hth,
    Joel


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 Randolph,
> 
> >
> > sorry about that.
> Don't worry :)
> 
> > try this one instead.
> >
> That compiles fine now ;) (with my c110 config)
> 
> I also test on n4k with 4Gb of ram and seems to works:
> # cat /proc/meminfo
Sorry but I had the bad idea to test it on the b2k and unfortunately it
panics very early:
Kernel command line: root=3D/dev/sda5 HOME=3D/ console=3DttyS0 TERM=3Dvt1=
02 palo_kernel=3D3/vmlinux-2.6.7-pa7
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x64
kernel BUG at include/asm/mmzone.h:72!
Kernel addresses on the stack:
 [<10125e84>] printk+0x144/0x190
 [<101066b8>] dump_stack+0x18/0x24
 [<10485ebc>] free_all_bootmem_core+0x2a4/0x2d4
 [<10485160>] pidhash_init+0xf0/0x168
 [<104830fc>] mem_init+0x34/0x6c
 [<104804f0>] start_kernel+0x118/0x1e4


Stack Dump:
 10474558:  10474558 55555555 55555555 55555555 
 10474548:  55555555 55555555 55555555 55555555 
 10474538:  55555555 55555555 55555555 55555555 
 10474528:  55555555 55555555 55555555 55555555 
 10474518:  55555555 55555555 55555555 00000000 
 10474508:  104741c0 0000000f 0000137f 90474346 
 104744f8:  00000020 10474294 ffffffff 10107088 
 104744e8:  7fffffff 10474348 00000010 103d6ad0 
 104744d8:  ffffffff 00000000 f0400004 0000000f 
 104744c8:  104d8010 0000000f 104d8010 55555555 
 104744b8:  55555555 55555555 55555555 10125fcc 
 104744a8:  55555555 104c8384 00000400 104c8010 
 10474498:  10474308 0000137f 10000000 0000009c 
 10474488:  00010000 104803dc 104b8810 101f8484 
 10474478:  10474400 00000000 10467172 101f8d9c 
 10474468:  10474298 10467178 00000055 10474320 
 10474458:  000061f8 10371283 104c839d 0000000f 
 10474448:  103cf010 103cf274 00000019 f0400004 
 10474438:  10418010 10430810 1047431c 10125e84 
 10474428:  10474318 10474280 10474348 10474288 
 10474418:  10474308 10474380 10371280 00000000 
 10474408:  0004000e 104803dc 104b8810 104c8783 
 104743f8:  00000002 104db010 ffffffff 1010c088 
 104743e8:  00000400 104c8384 00000010 103d6ad0 
 104743d8:  00000000 1034eddc 10474280 10474348 
 104743c8:  10474288 10474308 10474380 104c8783 
 104743b8:  00000001 10478000 00000008 1013e6c8 
 104743a8:  104804f0 10474000 10474308 10371280 
 10474398:  10474348 1034eddc 0000137f 00000000 
 10474388:  0c601094 00000004 00000000 104c8783 
 10474378:  00000002 1034c508 ffffffff 10485e64 
 10474368:  10485e60 00000000 00000000 00000000 
 10474358:  00000000 00000000 00000000 00000000 
 10474348:  00000000 00000000 00000000 55555555 
 10474338:  55555555 55555555 55555555 55555555 
 10474328:  55555555 55555555 55555555 55555555 
 10474318:  55555555 55555555 55555555 55555555 
 10474308:  55555555 55555555 55555555 55555555 
 104742f8:  55555555 55555555 55555555 55555555 
 104742e8:  55555555 55555555 55555555 55555555 
 104742d8:  55555555 55555555 55555555 55555555 
 104742c8:  55555555 55555555 55555555 55555555 
 104742b8:  55555555 55555555 55555555 55555555 
 104742a8:  55555555 55555555 55555555 55555555 
 10474298:  55555555 55555555 55555555 55555555 
 10474288:  55555555 55555555 55555555 55555555 
 10474278:  55555555 55555555 55555555 55555555 
 10474268:  55555555 00000000 00000000 00000000 
 10474258:  0000001f 00000000 0000001f 00000000 
 10474248:  0000001f 24850e06 04100800 101f8484 
 10474238:  104741c0 00000000 00000001 103af010 
 10474228:  103cf26c 00000001 ffffffff 00000034 
 10474218:  104f1000 ffffffff 00000001 0000000f 
 10474208:  f0000174 f000017c f00008c4 f0400004 
 104741f8:  00000000 ffffffff 104b8810 104b6010 
 104741e8:  104f1000 00000001 104b8d50 f0000000 
 104741d8:  00010000 0000009c 10000000 0000137f 
 104741c8:  10485ebc 104b6010 0004ff0e 00000000 
 104741b8:  00000000 00000000 00000000 10485ebc 
 104741a8:  00000000 00000000 00000000 1034c054 
 10474198:  1034c4f4 00000048 00000034 00000040 
 10474188:  104da3c0 0000000c 00000003 000000b2 
 10474178:  000000b2 00000000 104b650c 10485160 
 10474168:  103d0810 00800327 003c8210 0006cf80 

Kernel addresses on the stack:
 [<101f7840>] strncpy+0xc/0x2c
 [<10106d84>] parisc_terminate+0x60/0xb8
 [<10107088>] handle_interruption+0x2ac/0x5b0
 [<10125fcc>] release_console_sem+0x60/0x10c
 [<101f8d9c>] vscnprintf+0x10/0x2c
 [<10125e84>] printk+0x144/0x190
 [<1010c088>] intr_check_sig+0x0/0xc
 [<1013e6c8>] __print_symbol+0xc8/0x15c
 [<10485e64>] free_all_bootmem_core+0x24c/0x2d4
 [<10485ebc>] free_all_bootmem_core+0x2a4/0x2d4
 [<10485160>] pidhash_init+0xf0/0x168
 [<104830fc>] mem_init+0x34/0x6c
 [<104804f0>] start_kernel+0x118/0x1e4


Kernel Fault: Code=3D15 regs=3D104741c0 (Addr=3D0000137f)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110 Not tainted
r00-03  00000000 104b6010 10485ebc 0000137f
r04-07  10000000 0000009c 00010000 f0000000
r08-11  104b8d50 00000001 104f1000 104b6010
r12-15  104b8810 ffffffff 00000000 f0400004
r16-19  f00008c4 f000017c f0000174 0000000f
r20-23  00000001 ffffffff 104f1000 00000034
r24-27  ffffffff 00000001 103cf26c 103af010
r28-31  00000001 00000000 104741c0 101f8484
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10485e60 10485e64
 IIR: 0c601094    ISR: 00000000  IOR: 0000137f
 CPU:        0   CR30: 10474000 CR31: 10478000
 ORIG_R28: 00000002
 IAOQ[0]: free_all_bootmem_core+0x248/0x2d4
 IAOQ[1]: free_all_bootmem_core+0x24c/0x2d4
 RP(r2): free_all_bootmem_core+0x2a4/0x2d4

It's the k2.6.7-pa7 + your patch and c3000-defconfig + CONFIG_DISTCONTIGM=
EM=3Dy?

Joel

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hello randolph,

> ok, attached is a 2nd version of the patch, with some of the bugs
> identified by Grant and Joel fixed. All the memory is now identified as=

> available on boot,...

For the n4k with 4Gb of ram that works fine:
patst006:~# cat /proc/meminfo 
MemTotal:      4116168 kB
MemFree:       4053704 kB
Buffers:          3700 kB
Cached:          25084 kB
SwapCached:          0 kB
Active:          23620 kB
Inactive:        15420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      4116168 kB
LowFree:       4053704 kB
SwapTotal:      250872 kB
SwapFree:       250872 kB
Dirty:              60 kB
Writeback:           0 kB
Mapped:          19192 kB
Slab:             7840 kB
Committed_AS:    20552 kB
PageTables:       1080 kB
VmallocTotal:   245728 kB
VmallocUsed:       184 kB
VmallocChunk:   245544 kB

#top
top - 15:25:22 up 42 min,  2 users,  load average: 0.08, 0.15, 0.36
Tasks:  55 total,   1 running,  54 sleeping,   0 stopped,   0 zombie
Cpu(s):  1.0% us,  2.3% sy,  0.0% ni, 90.5% id,  0.3% wa,  0.0% hi,  5.9%=

si
Mem:   4116168k total,    62400k used,  4053768k free,     3624k buffers
Swap:   250872k total,        0k used,   250872k free,    25084k cached

And no more any warning to build modules :) :)

Unfortunately still panic on the b2k with only 256Mb of RAM (at exactely
the same place as previously mentioned)
Don't hesitate to let me know what you need more for this pb.

Joel




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Carlos,

SOme news (but didn't help me :(

> -- Original Message --
> Date: Sat, 03 Jul 2004 12:01:18 +0000
> From: Joel Soete <soete.joel@tiscali.be>
> To: Carlos O'Donell <carlos@baldric.uwo.ca>
> Cc: parisc-linux@parisc-linux.org
> Subject: Re: [parisc-linux] new toolchain (binutils 2.15, gcc 3.5, glib=
c
> 2.3.3)
> 	progress
> 
> 
> 
> 
> Carlos O'Donell wrote:
> >>I can now reproduce what happend during check :)
> >>and the crash occurs now at 0x401f67a8
> >>
> >>and ddd offers me a related dump window:
> >>Dump of assembler code from 0x401f67a8 to 0x401f68a8:
> >>    0x401f67a8:     ldw 0(,r25),r21
> >>    0x401f67ac:     ldo 1115(r20),r20
> > 
> > 
> > Joel, the most important code is what came *before* teh crash insn,
you
> > usually want atleast 16-32 insns before the crash to see what was goi=
ng
> > on, usually I trace back to try find the start of the function.
> > 
> > 
> >>0002c77c <_nl_intern_locale_data>:
> >>   2c77c:       6b c2 3f d9     stw rp,-14(,sp)
> >>   2c780:       6f c6 00 80     stw,ma r6,40(,sp)
> >>   2c784:       08 1a 02 46     copy r26,r6
> >>   2c788:       6b c5 3f 89     stw r5,-3c(,sp)
> >>   2c78c:       08 19 02 45     copy r25,r5
> >>   2c790:       6b c3 3f 99     stw r3,-34(,sp)
> >>   2c794:       08 18 02 43     copy r24,r3
> >>   2c798:       6b c4 3f 91     stw r4,-38(,sp)
> >>   2c79c:       8f 0e 81 d0     cmpib,>>=3D 7,r24,2c88c <_nl_intern_l=
ocale_data+0x110>
> >>   2c7a0:       6b d3 3f c1     stw r19,-20(,sp)
> >>   2c7a4:       22 98 04 00     ldil 20030000,r20
> >>=3D=3D>2c7a8:       0f 20 10 95     ldw 0(,r25),r21
> > 
for a run i got r25=3D=3D0x4004b000

and the corresponding mapping at this moment is:
00010000-00011000 r-xp 00000000 08:0b 142497     /Develop/parisc-linux/bu=
ild/glibc/localedata/tst-leaks
00020000-00021000 rwxp 00000000 08:0b 142497     /Develop/parisc-linux/bu=
ild/glibc/localedata/tst-leaks
40000000-40004000 rw-p 40000000 00:00 0 
4004b000-4004c000 r--p 00000000 08:0b 2632       /Develop/parisc-linux/bu=
ild/glibc/localedata/de_DE.ISO-8859-1/LC_IDENTIFICATION
403eb000-40529000 r-xp 00000000 08:0b 18692      /Develop/parisc-linux/bu=
ild/glibc/libc.so
40529000-40536000 rwxp 0012e000 08:0b 18692      /Develop/parisc-linux/bu=
ild/glibc/libc.so
40536000-40538000 rwxp 40536000 00:00 0 
410bd000-410d4000 r-xp 00000000 08:0b 196300     /Develop/parisc-linux/bu=
ild/glibc/elf/ld.so
410e3000-410e7000 rwxp 00016000 08:0b 196300     /Develop/parisc-linux/bu=
ild/glibc/elf/ld.so
410e7000-41108000 rwxp 410e7000 00:00 0 
bff00000-bff02000 rwxp bff00000 00:00 0 

I try to compare with glibc build with gcc-3.3.4 (that takes me some time=

to remember That I have also to upgrade my kernel to make gdb stop at a
break point :( ) and I got the same matching r25 =3D=3D map address of /D=
evelop/parisc-linux/build/glibc/localedata/de_DE.ISO-8859-1/LC_IDENTIFICA=
TION.
But with gcc-3.3.4 that can continue not with gcc-3.5????

What do I miss?

> > 
> > You are trying to get data from a pointer passed in as the second
> > parameter to the function, you want to see the value of r25 before th=
e
> > load to see if it is valid. In gdb you can print register values or
just
> > use the info command to see all the regs. You can display regs by usi=
ng
> > '$r25' AFAIR, though the format may vary.
> > 
> ah I see
> And btw if I put a break at 0x401f677c (corresponding to line 2c77c: th=
e
> first routine insn), I would also be able to find the 
> address from where it's called (just have to find back the right regist=
er).

umm, at this place 'info reg' gave me (among other stuff :) )
rp             0x404179f3
r31            0x404179d7

(rp=3D=3Dr2 if i well understand)

do you remember what is the right calling adress?

Thanks again,
    Joel


-------------------------------------------------------------------------=
--
Tiscali ADSL LIGHT, 19,95 EUR/mois pendant 6 mois, c'est le moment de fai=
re
le pas!
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On Fri, 9 Jul 2004, Kars de Jong wrote:
> On Wed, 2004-05-26 at 20:55, Kars de Jong wrote:
> > On Wed, 2004-05-26 at 10:16, Geert Uytterhoeven wrote:
> > > On Tue, 25 May 2004, Kars de Jong wrote:
> > > > the input device layer HIL keyboard driver working, etc... :-(
> > >
> > > Aren't some PARISC people working on that as well?
> >
> > Hmm, yes, apparently there is a PARISC patch for 2.6 which has a port of
> > the HP300 HIL driver to the input device layer.
> >
> > They also have a far more extensive HIL driver which handles the mouse
> > as well, but I'm not sure if the HIL in the later PARISC models is the
> > same as the HIL in the HP300 series on a device driver level. I'd have
> > to study the driver a little better.
>
> I have ported the PARISC HIL stuff to the HP300. Basically only the SDC
> driver needed to be changed a bit, all the rest was generic already.
>
> My kernel crashes if loadkeys is used (which I don't understand yet) but
> otherwise it seems to work a bit. The keyboard and mouse are properly
> detected, but when I read /dev/input/mice I don't get any events.
>
> What should I do with these files? Just add them to our repository, and
> worry about merging with the PARISC people later?

What about posting the patches to the Linux/m68k and Linux/PA-RISC lists?

> Oh, all of these are already present in the m68k-2_4 branch, although
> some of them have moved. How does that work in CVS?

CVS doesn't do move. You have to delete the file in the old place, and add it
at the new place.

> The following files are new for the HIL stuff:
>
> drivers/input/keyboard/hil_kbd.c
> drivers/input/keyboard/hilkbd.c
> drivers/input/misc/hp_sdc_rtc.c
> drivers/input/mouse/hil_ptr.c
> drivers/input/serio/hil_mlc.c
> drivers/input/serio/hp_sdc.c
> drivers/input/serio/hp_sdc_mlc.c
> include/linux/hil.h
> include/linux/hil_mlc.h
> include/linux/hp_sdc.h

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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On Sat, Jul 10, 2004 at 11:09:34AM +0200, Geert Uytterhoeven wrote:
> > worry about merging with the PARISC people later?
> 
> What about posting the patches to the Linux/m68k and Linux/PA-RISC lists?

That'd be great.  More shared code!
It's also good incentive for us to get this stuff merged upstream.
Helge, you said you'd take care of this... what's the current status?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain



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On Saturday 10 July 2004 15:05, Matthew Wilcox wrote:
> On Sat, Jul 10, 2004 at 11:09:34AM +0200, Geert Uytterhoeven wrote:
> > > worry about merging with the PARISC people later?
> > 
> > What about posting the patches to the Linux/m68k and Linux/PA-RISC lists?
> 
> That'd be great.  More shared code!
> It's also good incentive for us to get this stuff merged upstream.
> Helge, you said you'd take care of this... what's the current status?

Last time I tried the HIL stuff for 2.6 was still in bad shape.
It worked unreliable and all the locking due to the timing issues still increases the generic load of the machine.

Our code in kernel 2.4 has similiar problems, but this I think we can live with.

Anyway, I would be happy to see any patches and merge them upstream.

Helge
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On Sat, 10 Jul 2004, Kars de Jong wrote:
> On Sat, 2004-07-10 at 15:55, Helge Deller wrote:
> > On Saturday 10 July 2004 15:05, Matthew Wilcox wrote:
> OK, here they are. Nothing to fix the reliability issues though, I'm
> affraid.
>
> I needed remove the __exit marker from hp_sdc_exit() because the linker
> didn't like it being called from hp_sdc_register():
>
> drivers/built-in.o: In function `hp_sdc_register':
> drivers/built-in.o(.init.text+0x396e): undefined reference to `local symbols in discarded section .exit.text'
>
> I don't really know what that means, seems like it doesn't like calling
> an __exit function from an __init function.

Indeed, __exit functions may be discarded.

> --- /tmp/parisc/include/linux/hp_sdc.h	Sat Jul 10 15:47:56 2004
> +++ /usr/src/linux-2.6-m68k-hp/include/linux/hp_sdc.h	Thu Jun 24 21:51:11 2004
> @@ -284,6 +286,9 @@
>  #ifdef __hppa__
>  	struct parisc_device	*dev;
>  	int		dev_err;	/* carries status from registration */
> +#elif defined(__mc68000__)
> +	void		*dev;
> +	int		dev_err;	/* carries status from registration */

You can merge dev_err as well.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds



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On Sat, Jul 10, 2004 at 06:36:30PM +0200, Kars de Jong wrote:
...
> @@ -284,6 +286,9 @@
>  #ifdef __hppa__
>  	struct parisc_device	*dev;
>  	int		dev_err;	/* carries status from registration */
> +#elif defined(__mc68000__)
> +	void		*dev;

Can *dev be unified eventually to "struct device"?

"void *" isn't my favorite construct.

grant



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On Sat, 2004-07-10 at 15:55, Helge Deller wrote:
> On Saturday 10 July 2004 15:05, Matthew Wilcox wrote:
> > On Sat, Jul 10, 2004 at 11:09:34AM +0200, Geert Uytterhoeven wrote:
> > > > worry about merging with the PARISC people later?
> > > 
> > > What about posting the patches to the Linux/m68k and Linux/PA-RISC lists?
> > 
> > That'd be great.  More shared code!
> > It's also good incentive for us to get this stuff merged upstream.
> > Helge, you said you'd take care of this... what's the current status?
> 
> Last time I tried the HIL stuff for 2.6 was still in bad shape.
> It worked unreliable and all the locking due to the timing issues still increases the generic load of the machine.

Yes, I noticed that...

It seems to be worse than 2.4 though. On my HP9000/425t the keyboard
sometimes locks up for a while and then starts reacting again. The mouse
gets detected but doesn't seem to generate any events on
/dev/input/mice.

> Our code in kernel 2.4 has similiar problems, but this I think we can live with.
> 
> Anyway, I would be happy to see any patches and merge them upstream.

OK, here they are. Nothing to fix the reliability issues though, I'm
affraid.

I needed remove the __exit marker from hp_sdc_exit() because the linker
didn't like it being called from hp_sdc_register():

drivers/built-in.o: In function `hp_sdc_register':
drivers/built-in.o(.init.text+0x396e): undefined reference to `local symbols in discarded section .exit.text'

I don't really know what that means, seems like it doesn't like calling
an __exit function from an __init function.

ChangeLog:

drivers/input/keyboard/hil_kbd.c:
	Check for KEY_RESERVED _after_ translation.

include/linux/hp_sdc.h
drivers/input/serio/hp_sdc.c
	Add support for HP9000/[34]00 series.


Kind regards,

Kars.

diff -ur /tmp/parisc/drivers/input/keyboard/hil_kbd.c /usr/src/linux-2.6-m68k-hp/drivers/input/keyboard/hil_kbd.c
--- /tmp/parisc/drivers/input/keyboard/hil_kbd.c	Sat Jul 10 15:47:52 2004
+++ /usr/src/linux-2.6-m68k-hp/drivers/input/keyboard/hil_kbd.c	Sun Jun 27 13:26:21 2004
@@ -156,9 +156,9 @@
 			key = kbd->data[cnt++];
 			up = key & HIL_KBD_SET1_UPBIT;
 			key &= (~HIL_KBD_SET1_UPBIT & 0xff);
-			key = key >> HIL_KBD_SET1_SHIFT;
+			key = hil_kbd_set1[key >> HIL_KBD_SET1_SHIFT];
 			if (key != KEY_RESERVED)
-				input_report_key(dev, hil_kbd_set1[key], !up);
+				input_report_key(dev, key, !up);
 		}
 		break;
 	case HIL_POL_CHARTYPE_SET2:
@@ -180,9 +180,9 @@
 			key = kbd->data[cnt++];
 			up = key & HIL_KBD_SET3_UPBIT;
 			key &= (~HIL_KBD_SET1_UPBIT & 0xff);
-			key = key >> HIL_KBD_SET3_SHIFT;
+			key = hil_kbd_set3[key >> HIL_KBD_SET3_SHIFT];
 			if (key != KEY_RESERVED)
-				input_report_key(dev, hil_kbd_set3[key], !up);
+				input_report_key(dev, key, !up);
 		}
 		break;
 	}
diff -ur /tmp/parisc/drivers/input/serio/hp_sdc.c /usr/src/linux-2.6-m68k-hp/drivers/input/serio/hp_sdc.c
--- /tmp/parisc/drivers/input/serio/hp_sdc.c	Sat Jul 10 15:47:56 2004
+++ /usr/src/linux-2.6-m68k-hp/drivers/input/serio/hp_sdc.c	Sat Jul 10 18:22:19 2004
@@ -72,7 +72,20 @@
 #include <linux/hil.h>
 #include <asm/io.h>
 #include <asm/system.h>
-#include <asm/parisc-device.h>
+
+/* Machine-specific abstraction */
+
+#if defined(__hppa__)
+# include <asm/parisc-device.h>
+# define sdc_readb(p)		gsc_readb(p)
+# define sdc_writeb(v,p)	gsc_writeb((v),(p))
+#elif defined(__mc68000__)
+# include <asm/uaccess.h>
+# define sdc_readb(p)		in_8(p)
+# define sdc_writeb(v,p)	out_8((p),(v))
+#else
+# error "HIL is not supported on this platform"
+#endif
 
 #define PREFIX "HP SDC: "
 
@@ -99,7 +112,7 @@
 	unsigned long flags;
 
 	write_lock_irqsave(&hp_sdc.ibf_lock, flags);
-	status = gsc_readb(hp_sdc.status_io);
+	status = sdc_readb(hp_sdc.status_io);
 	if (!(status & HP_SDC_STATUS_IBF)) hp_sdc.ibf = 0;
 	write_unlock_irqrestore(&hp_sdc.ibf_lock, flags);
 
@@ -107,7 +120,7 @@
 }
 
 static inline uint8_t hp_sdc_data_in8 (void) {
-	return gsc_readb(hp_sdc.data_io); 
+	return sdc_readb(hp_sdc.data_io); 
 }
 
 static inline void hp_sdc_status_out8 (uint8_t val) {
@@ -116,7 +129,7 @@
 	write_lock_irqsave(&hp_sdc.ibf_lock, flags);
 	hp_sdc.ibf = 1;
 	if ((val & 0xf0) == 0xe0) hp_sdc.wi = 0xff;
-	gsc_writeb(val, hp_sdc.status_io);
+	sdc_writeb(val, hp_sdc.status_io);
 	write_unlock_irqrestore(&hp_sdc.ibf_lock, flags);
 }
 
@@ -125,7 +138,7 @@
 
 	write_lock_irqsave(&hp_sdc.ibf_lock, flags);
 	hp_sdc.ibf = 1;
-	gsc_writeb(val, hp_sdc.data_io);
+	sdc_writeb(val, hp_sdc.data_io);
 	write_unlock_irqrestore(&hp_sdc.ibf_lock, flags);
 }
 
@@ -146,7 +159,7 @@
 	}
 	read_unlock(lock);
 	write_lock(lock);
-	while (gsc_readb(hp_sdc.status_io) & HP_SDC_STATUS_IBF) {};
+	while (sdc_readb(hp_sdc.status_io) & HP_SDC_STATUS_IBF) {};
 	hp_sdc.ibf = 0;
 	write_unlock_irqrestore(lock, flags);
 }
@@ -636,6 +649,7 @@
 
 	hp_sdc.hil = callback;
 	hp_sdc.im &= ~HP_SDC_IM_HIL;
+	hp_sdc.im &= ~HP_SDC_IM_RESET;
 	hp_sdc.set_im = 1;
 	write_unlock_irq(&hp_sdc.hook_lock);
 
@@ -661,6 +675,7 @@
 	/* Enable interrupts from the HIL MLC */
 	hp_sdc.cooked = callback;
 	hp_sdc.im &= ~HP_SDC_IM_HIL;
+	hp_sdc.im &= ~HP_SDC_IM_RESET;
 	hp_sdc.set_im = 1;
 	write_unlock_irq(&hp_sdc.hook_lock);
 
@@ -705,6 +720,7 @@
 	/* Disable interrupts from HIL only if there is no cooked driver. */
 	if(hp_sdc.cooked == NULL) {
 		hp_sdc.im |= HP_SDC_IM_HIL;
+		hp_sdc.im |= HP_SDC_IM_RESET;
 		hp_sdc.set_im = 1;
 	}
 	write_unlock_irq(&hp_sdc.hook_lock);
@@ -727,6 +743,7 @@
 	/* Disable interrupts from HIL only if there is no raw HIL driver. */
 	if(hp_sdc.hil == NULL) {
 		hp_sdc.im |= HP_SDC_IM_HIL;
+		hp_sdc.im |= HP_SDC_IM_RESET;
 		hp_sdc.set_im = 1;
 	}
 	write_unlock_irq(&hp_sdc.hook_lock);
@@ -746,6 +763,8 @@
 
 /************************** Module Initialization ***************************/
 
+#if defined(__hppa__)
+
 static struct parisc_device_id hp_sdc_tbl[] = {
 	{
 		.hw_type =	HPHW_FIO, 
@@ -758,15 +777,17 @@
 
 MODULE_DEVICE_TABLE(parisc, hp_sdc_tbl);
 
-static int __init hp_sdc_init(struct parisc_device *d);
+static int __init hp_sdc_init_hppa(struct parisc_device *d);
 
 static struct parisc_driver hp_sdc_driver = {
 	.name =		"HP SDC",
 	.id_table =	hp_sdc_tbl,
-	.probe =	hp_sdc_init,
+	.probe =	hp_sdc_init_hppa,
 };
 
-static int __init hp_sdc_init(struct parisc_device *d)
+#endif /* __hppa__ */
+
+static int __init hp_sdc_init(void)
 {
 	int i;
 	char *errstr = NULL;
@@ -774,20 +795,8 @@
 	uint8_t ts_sync[6];
 	struct semaphore s_sync;
 
-
 	errstr = "foo\n";
 
-	if (!d) return 1;
-	if (hp_sdc.dev != NULL) return 1;	/* We only expect one SDC */
-
-	hp_sdc.dev = d;
-	hp_sdc.irq		= d->irq;
-	/* TODO: Is NMI == IRQ - 1 all cases, or is there a way to query? */
-	hp_sdc.nmi		= d->irq - 1;
-	hp_sdc.base_io		= (unsigned long) d->hpa;
-	hp_sdc.data_io		= (unsigned long) d->hpa + 0x800;
-	hp_sdc.status_io	= (unsigned long) d->hpa + 0x801;
-
   	hp_sdc.lock		= RW_LOCK_UNLOCKED;
   	hp_sdc.ibf_lock		= RW_LOCK_UNLOCKED;
   	hp_sdc.rtq_lock		= RW_LOCK_UNLOCKED;
@@ -822,6 +831,7 @@
 	hp_sdc.dev_err = -EBUSY;
 
 	errstr = "IO not available for";
+#if defined(__hppa__)
         if (request_region(hp_sdc.data_io, 2, hp_sdc_driver.name)) goto err0;
 
 	errstr = "IRQ not available for";
@@ -829,8 +839,19 @@
 		       (void *) hp_sdc.base_io)) goto err1;
 
 	errstr = "NMI not available for";
+
         if (request_irq(hp_sdc.nmi, &hp_sdc_nmisr, 0, "HP SDC NMI", 
 			(void*)d->hpa)) goto err2;
+#elif defined(__mc68000__)
+	errstr = "IRQ not available for";
+        if(request_irq(hp_sdc.irq, &hp_sdc_isr, 0, "HP SDC", 
+		       (void *) hp_sdc.base_io)) goto err1;
+
+	errstr = "NMI not available for";
+	
+	if (request_irq(hp_sdc.nmi, &hp_sdc_nmisr, 0, "HP SDC NMI", 
+			(void *) hp_sdc.base_io)) goto err2;
+#endif	
 
 	printk(KERN_INFO PREFIX "HP SDC at 0x%p, IRQ %d (NMI IRQ %d)\n", 
 	       (void *)hp_sdc.base_io, hp_sdc.irq, hp_sdc.nmi);
@@ -872,13 +893,37 @@
 	return hp_sdc.dev_err;
 }
 
+#if defined(__hppa__)
+
+static int __init hp_sdc_init_hppa(struct parisc_device *d)
+{
+	if (!d) return 1;
+	if (hp_sdc.dev != NULL) return 1;	/* We only expect one SDC */
+
+	hp_sdc.dev = d;
+	hp_sdc.irq		= d->irq;
+	/* TODO: Is NMI == IRQ - 1 all cases, or is there a way to query? */
+	hp_sdc.nmi		= d->irq - 1;
+	hp_sdc.base_io		= (unsigned long) d->hpa;
+	hp_sdc.data_io		= (unsigned long) d->hpa + 0x800;
+	hp_sdc.status_io	= (unsigned long) d->hpa + 0x801;
+
+	return hp_sdc_init();
+}
+
+#endif /* __hppa__ */
+
+#if !defined(__mc68000__) /* Link error on m68k! */
 static void __exit hp_sdc_exit(void)
+#else
+static void hp_sdc_exit(void)
+#endif
 {
 	write_lock_irq(&hp_sdc.lock);
 
 	/* Turn off all maskable "sub-function" irq's. */
 	hp_sdc_spin_ibf();
-	gsc_writeb(HP_SDC_CMD_SET_IM | HP_SDC_IM_MASK, hp_sdc.status_io);
+	sdc_writeb(HP_SDC_CMD_SET_IM | HP_SDC_IM_MASK, hp_sdc.status_io);
 
 	/* Wait until we know this has been processed by the i8042 */
 	hp_sdc_spin_ibf();
@@ -893,22 +938,45 @@
 
 /*        release_region(hp_sdc.data_io, 2); */
 
+#if defined(__hppa__)
 	if (unregister_parisc_driver(&hp_sdc_driver)) 
 		printk(KERN_WARNING PREFIX "Error unregistering HP SDC");
+#endif
 }
 
 static int __init hp_sdc_register(void)
 {
-	hp_sdc.dev = NULL;
-	hp_sdc.dev_err = 0;
 	hp_sdc_transaction tq_init;
 	uint8_t tq_init_seq[5];
 	struct semaphore tq_init_sem;
-
+#if defined(__mc68000__)
+	mm_segment_t fs;
+	unsigned char i;
+#endif
+	
+	hp_sdc.dev = NULL;
+	hp_sdc.dev_err = 0;
+#if defined(__hppa__)
 	if (register_parisc_driver(&hp_sdc_driver)) {
 		printk(KERN_WARNING PREFIX "Error registering SDC with system bus tree.\n");
 		return -ENODEV;
 	}
+#elif defined(__mc68000__)
+	if (!MACH_IS_HP300)
+	    return -ENODEV;
+
+	hp_sdc.irq	 = 1;
+	hp_sdc.nmi	 = 7;
+	hp_sdc.base_io	 = (unsigned long) 0xf0428000;
+	hp_sdc.data_io	 = (unsigned long) hp_sdc.base_io + 1;
+	hp_sdc.status_io = (unsigned long) hp_sdc.base_io + 3;
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	if (!get_user(i, (unsigned char *)hp_sdc.data_io))
+		hp_sdc.dev = (void *)1;
+	set_fs(fs);
+	hp_sdc.dev_err   = hp_sdc_init();
+#endif
 	if (hp_sdc.dev == NULL) {
 		printk(KERN_WARNING PREFIX "No SDC found.\n");
 		return hp_sdc.dev_err;
diff -ur /tmp/parisc/include/linux/hp_sdc.h /usr/src/linux-2.6-m68k-hp/include/linux/hp_sdc.h
--- /tmp/parisc/include/linux/hp_sdc.h	Sat Jul 10 15:47:56 2004
+++ /usr/src/linux-2.6-m68k-hp/include/linux/hp_sdc.h	Thu Jun 24 21:51:11 2004
@@ -42,7 +42,9 @@
 #include <linux/types.h>
 #include <linux/time.h>
 #include <linux/timer.h>
+#if defined(__hppa__)
 #include <asm/hardware.h>
+#endif
 
 
 /* No 4X status reads take longer than this (in usec).
@@ -284,6 +286,9 @@
 #ifdef __hppa__
 	struct parisc_device	*dev;
 	int		dev_err;	/* carries status from registration */
+#elif defined(__mc68000__)
+	void		*dev;
+	int		dev_err;	/* carries status from registration */	
 #else
 #error No support for device registration on this arch yet.
 #endif




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Subject: [parisc-linux] [randolph@tausq.org: Re: DIFF 2.6.7-pa13 SMP fixes]
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Xref: news.gmane.org gmane.linux.ports.parisc:24873

Folks,
Here's another good example of
	"Just because it boots doesn't mean it's right"

Someone was asserting SMP is stable (based on their experience).
But it was clearly corrupting the lock pointer.

Kudos to Thibaut Varene on the spinlock debug code.

thanks,
grant

----- Forwarded message from Randolph Chung <randolph@tausq.org> -----

From: Randolph Chung <randolph@tausq.org>
To: parisc-linux-cvs@lists.parisc-linux.org
Subject: Re: [parisc-linux-cvs] linux-2.6 tausq

> 	.              : Makefile 
> 	arch/parisc/kernel: entry.S smp.c traps.c 
> 	include/asm-parisc: pgtable.h 
> 
> Log message:
> 2.6.7-pa13
> Fix a bug in entry.S where pa_dbit_lock was being trashed
> Fix debug spinlock warnings in pgtable.h

<ggg> T-Bone deserves a big cookie :^)

Index: Makefile
===================================================================
RCS file: /var/cvs/linux-2.6/Makefile,v
retrieving revision 1.219
diff -u -p -r1.219 Makefile
--- Makefile	11 Jul 2004 04:26:04 -0000	1.219
+++ Makefile	11 Jul 2004 17:29:32 -0000
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 7
-EXTRAVERSION = -pa12
+EXTRAVERSION = -pa13
 NAME=Zonked Quokka
 
 # *DOCUMENTATION*
Index: arch/parisc/kernel/entry.S
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/entry.S,v
retrieving revision 1.15
diff -u -p -r1.15 entry.S
--- arch/parisc/kernel/entry.S	9 Jul 2004 19:04:20 -0000	1.15
+++ arch/parisc/kernel/entry.S	11 Jul 2004 17:29:33 -0000
@@ -518,7 +518,7 @@
 
 	/* Set the dirty bit (and accessed bit).  No need to be
 	 * clever, this is only used from the dirty fault */
-	.macro		update_dirty	ptep,pte,tmp,tmp1
+	.macro		update_dirty	ptep,pte,tmp
 	ldi		_PAGE_ACCESSED|_PAGE_DIRTY,\tmp
 	or		\tmp,\pte,\pte
 	STREG		\pte,0(\ptep)
@@ -1559,7 +1559,7 @@ dbit_spin_20w:
 
 dbit_nolock_20w:
 #endif
-	update_dirty	ptp,pte,t0,t1
+	update_dirty	ptp,pte,t1
 
 	make_insert_tlb	spc,pte,prot
 		
@@ -1596,7 +1596,7 @@ dbit_spin_11:
 
 dbit_nolock_11:
 #endif
-	update_dirty	ptp,pte,t0,t1
+	update_dirty	ptp,pte,t1
 
 	make_insert_tlb_11	spc,pte,prot
 
@@ -1637,11 +1637,11 @@ dbit_spin_20:
 
 dbit_nolock_20:
 #endif
-	update_dirty	ptp,pte,t0,t1
+	update_dirty	ptp,pte,t1
 
 	make_insert_tlb	spc,pte,prot
 
-	f_extend	pte,t0
+	f_extend	pte,t1
 	
         idtlbt          pte,prot
 
Index: arch/parisc/kernel/smp.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/smp.c,v
retrieving revision 1.8
diff -u -p -r1.8 smp.c
--- arch/parisc/kernel/smp.c	23 May 2004 23:51:52 -0000	1.8
+++ arch/parisc/kernel/smp.c	11 Jul 2004 17:29:33 -0000
@@ -54,8 +54,6 @@
 
 #define kDEBUG 0
 
-spinlock_t pa_dbit_lock = SPIN_LOCK_UNLOCKED;
-
 spinlock_t smp_lock = SPIN_LOCK_UNLOCKED;
 
 volatile struct task_struct *smp_init_current_idle_task;
Index: arch/parisc/kernel/traps.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/traps.c,v
retrieving revision 1.13
diff -u -p -r1.13 traps.c
--- arch/parisc/kernel/traps.c	28 Apr 2004 19:12:10 -0000	1.13
+++ arch/parisc/kernel/traps.c	11 Jul 2004 17:29:34 -0000
@@ -44,6 +44,10 @@
 #define PRINT_USER_FAULTS /* (turn this on if you want user faults to be */
 			  /*  dumped to the console via printk)          */
 
+#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
+spinlock_t pa_dbit_lock = SPIN_LOCK_UNLOCKED;
+#endif
+
 int printbinary(char *buf, unsigned long x, int nbits)
 {
 	unsigned long mask = 1UL << (nbits - 1);
Index: include/asm-parisc/pgtable.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/pgtable.h,v
retrieving revision 1.15
diff -u -p -r1.15 pgtable.h
--- include/asm-parisc/pgtable.h	10 Jul 2004 07:51:15 -0000	1.15
+++ include/asm-parisc/pgtable.h	11 Jul 2004 17:29:37 -0000
@@ -455,11 +455,7 @@ static inline int ptep_test_and_clear_di
 #endif
 }
 
-#ifdef CONFIG_SMP
 extern spinlock_t pa_dbit_lock;
-#else
-static spinlock_t pa_dbit_lock; /* dummy to keep the compilers happy */
-#endif
 
 static inline pte_t ptep_get_and_clear(pte_t *ptep)
 {
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On Saturday 10 July 2004 18:36, Kars de Jong wrote:
> It seems to be worse than 2.4 though. On my HP9000/425t the keyboard
> sometimes locks up for a while and then starts reacting again. The mouse
> gets detected but doesn't seem to generate any events on
> /dev/input/mice.

Yes. Same problem here on HPPA/2.6 as well.

> > Anyway, I would be happy to see any patches and merge them upstream.
> 
> OK, here they are. Nothing to fix the reliability issues though, I'm
> affraid.

I applied your changes to the PARISC CVS tree, but as long as the mouse isn't working I think it's a bad idea to merge it upstream.

Helge
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On Mon, Jul 12, 2004 at 12:16:03AM +0200, Helge Deller wrote:
> I applied your changes to the PARISC CVS tree, but as long as the mouse isn't working I think it's a bad idea to merge it upstream.

I'm not sure that's true.  I think it's fine to merge it upstream and
fix it later.  Maybe someone else will notice the problem and fix it
for us ;-)

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain



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Subject: Re: [parisc-linux] new toolchain (binutils 2.15, gcc 3.5, glibc 2.3.3)
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Hello Carlos,

Sorry for late answer, but I take some hollidays with my wife :)

Carlos O'Donell wrote:
> On Wed, Jul 07, 2004 at 07:02:37PM +0200, Joel Soete wrote:
> 
[...]

>>>>
>>for a run i got r25==0x4004b000
>>
>>and the corresponding mapping at this moment is:
>>00010000-00011000 r-xp 00000000 08:0b 142497     /Develop/parisc-linux/build/glibc/localedata/tst-leaks
>>00020000-00021000 rwxp 00000000 08:0b 142497     /Develop/parisc-linux/build/glibc/localedata/tst-leaks
>>40000000-40004000 rw-p 40000000 00:00 0
>>4004b000-4004c000 r--p 00000000 08:0b 2632       /Develop/parisc-linux/build/glibc/localedata/de_DE.ISO-8859-1/LC_IDENTIFICATION
>>403eb000-40529000 r-xp 00000000 08:0b 18692      /Develop/parisc-linux/build/glibc/libc.so
>>40529000-40536000 rwxp 0012e000 08:0b 18692      /Develop/parisc-linux/build/glibc/libc.so
>>40536000-40538000 rwxp 40536000 00:00 0
>>410bd000-410d4000 r-xp 00000000 08:0b 196300     /Develop/parisc-linux/build/glibc/elf/ld.so
>>410e3000-410e7000 rwxp 00016000 08:0b 196300     /Develop/parisc-linux/build/glibc/elf/ld.so
>>410e7000-41108000 rwxp 410e7000 00:00 0
>>bff00000-bff02000 rwxp bff00000 00:00 0
> 
> 
> That seems reasonable, it's trying to load the first word from the
> locale data. Not sure why that would crash. Is it still crashing in the
> same place?

Yes it always crashed at the same place.
That is why I would like to back traced the calling function to see if some space register is not broken?

>  
> 
>>I try to compare with glibc build with gcc-3.3.4 (that takes me some time
>>to remember That I have also to upgrade my kernel to make gdb stop at a
>>break point :( ) and I got the same matching r25 == map address of 
>>/Develop/parisc-linux/build/glibc/localedata/de_DE.ISO-8859-1/LC_IDENTIFICATION.
>>But with gcc-3.3.4 that can continue not with gcc-3.5????
> 
> 
> You have to get near that insn sequence and then start doing a binary
> stepping, usually like "si 1000" or something and then if you crash
> restart the process and keep going. You need to determine why the
> sequence would crash. Currently it looks like it shouldn't, which means
> we are probably looking at the wrong insns.
> 
> 
>>What do I miss?
> 
> 
> We are probably looking at the wrong insns.
> 
> c.
> 
> 
Well, ok it should be that gdb didn't show me the right stuff and so the only way I foreseen in this case is to introduce some 
printf (if posible, but iirc it's not) from place to place?

I will so continue.

Thanks for help,
	Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:24877

Hi all, 

I just noticed that that in during the "Found devices:" on the the N4k it=
's
mentioned:
[...]
18. DEW BC Runway Port at 0xfffffffffed24000 [36] { 7, 0x0, 0x584, 0x0000=
c
}
19. Unknown machine at 0xfffffffffed25000 [37] { 0, 0x0, 0x5d3, 0x00000
}
20. DEW BC Runway Port at 0xfffffffffed2c000 [44] { 7, 0x0, 0x584, 0x0000=
c
}
21. Unknown machine at 0xfffffffffed2d000 [45] { 0, 0x0, 0x5d3, 0x00000
}

Comparing with ioscan:
[...]
pbc         1  36                      pbc       CLAIMED     BUS_NEXUS 
  Bus Converter
processor   1  37                      processor CLAIMED     PROCESSOR 
  Processor
pbc         3  44                      pbc       CLAIMED     BUS_NEXUS 
  Bus Converter
processor   3  45                      processor CLAIMED     PROCESSOR 
  Processor

The 'Unknown machine' are in fact the cpu.

Any idea where I have to look for to change it?

TIA,
    Joel


-------------------------------------------------------------------------=
--
Tiscali ADSL LIGHT, 19,95 EUR/mois pendant 6 mois, c'est le moment de fai=
re
le pas!
http://reg.tiscali.be/default.asp?lg=3Dfr




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> > On Wed, Jul 14, 2004 at 05:24:23PM +0000, Joel Soete wrote:
> > ...
> > > 19. Unknown machine at 0xfffffffffed25000 [37] { 0, 0x0, 0x5d3, 0x0=
0000
> > }
> > ...
> > > Any idea where I have to look for to change it?
> >
> > It needs to be added to arch/parisc/kernel/hardware.c.
> > see hp_hardware_list[] declaration :^)
> >
> > We just need to know what the proper name for the CPU is.
> 
> Ah it seems to be a N4000-55 (cpu PA8600 (PCX-w+)  550Mhz, so according=

> to:
> <http://hwdb.parisc-linux.org/view.php?type=3Dmachine&name=3DN4000-55>,=

>  it would be of "Prelude W+ 540" model name (even thought that its actu=
al
> clock seems well 550?)
> 
umm not so easy to choose the right thing according to:
<http://www.openpa.net/cpu.html#xwp>
its code name would be "Landshark"

Thanks more,
    Joel

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On Mon, Jul 12, 2004 at 11:14:41AM +0000, Joel Soete wrote:
> >That seems reasonable, it's trying to load the first word from the
> >locale data. Not sure why that would crash. Is it still crashing in the
> >same place?
> 
> Yes it always crashed at the same place.
> That is why I would like to back traced the calling function to see if some 
> space register is not broken?

I don't currently have time to investigate, but believe me, it's not the
right place.

I recommend doing the following:

a. Start gdb, and specify you want to debug your new loader
        gdb "/yoursource/glibc-build/elf/ld.so.1"

b. Do the right 'set env' and the right 'set args'

c. Break at 'fixup' or 'rtld'

d. Then use 'si' to move forward slowly, it's best if you break on fixup
   because you can 'c' from fixup for a couple of times before you jump
   into the relocated executable.

e. Continue with 'si XXXX' to jump forward until it crashes, repeat
   again with binary steps. This process can be automated, and it's what
   I do when I don't trust the debugger.

In the end you should clearly see where you are dying! Though you might
have to do some assembly correlation to find the position
(/proc/self/maps is usefull at this point).

c.

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On Wed, Jul 14, 2004 at 05:24:23PM +0000, Joel Soete wrote:
> I just noticed that that in during the "Found devices:" on the the N4k it's
> mentioned:

What kernel?

> [...]
> 18. DEW BC Runway Port at 0xfffffffffed24000 [36] { 7, 0x0, 0x584, 0x0000c
> }
> 19. Unknown machine at 0xfffffffffed25000 [37] { 0, 0x0, 0x5d3, 0x00000
> }

        {HPHW_NPROC,0x5D3,0x4,0x91,"Prelude W+ 540"},

We have this one ...

-- 
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> 
> On Wed, Jul 14, 2004 at 05:24:23PM +0000, Joel Soete wrote:
> > I just noticed that that in during the "Found devices:" on the the N4=
k
> it's
> > mentioned:
> 
> What kernel?
> 
Apologies, 2.6.7-pa7

> > [...]
> > 18. DEW BC Runway Port at 0xfffffffffed24000 [36] { 7, 0x0, 0x584, 0x=
0000c
> > }
> > 19. Unknown machine at 0xfffffffffed25000 [37] { 0, 0x0, 0x5d3, 0x000=
00
> > }
> 
>         {HPHW_NPROC,0x5D3,0x4,0x91,"Prelude W+ 540"},
> 
> We have this one ...
> 
Strange, I need so to have a more detail look :)

Thanks,
    Joel

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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] k-2.6.8-rc2-pa0 failled to boot in multi-user on
	N4k
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Xref: news.gmane.org gmane.linux.ports.parisc:24882

Hello Grant,

>
> On Sat, Jul 24, 2004 at 09:52:50PM +0000, Joel Soete wrote:
> > I  test with 2.6.8-rc2-pa0 using the n4000_defconfig (with or without=

DISCONTIGMEM),
> > I can start it in single user mode but as soon as I 'init 2' the syst=
em
> > do an hpmc after starting some services?
>
> Can you look in /etc/rc2.d/ and start each service by hand until you
> find the one that HPMCs the box?

Umm i can try tommorrow.
I just didn't do it till now because the only thing that is reproducible
is the panic during the init 2, otc it doesn't seems to always hpmc a the=

same plae.
To be more detailed in what i did during previous test:
 t1: the system start and hpmc when gpm start
 t2: rs to restart in s-u and put an exit 0 early in /etc/init.d/gpm and
ctrl-d to launch init 2 -> system hpmc during autofs
 t3: same as t2 but with exit 0 into /etc/init.d/autofs -> system hpmc du=
ring
gpm start
 t4: same as t3 but with exit 0 into /etc/init.d/gpm -> system hpmc (sorr=
y
here I don't remember when)

My bad, I didn't think that it could be a previous started service that
could cause the hpmc :(

>
> > System Responder Address     =3D 0xfffffffffed25000
> > System Requestor Address     =3D 0x000000fffed24000
>
> Requestor is likely a CPU. What is Responder? another CPU?
> console output will tell us and sorry if you already sent it.
>
It possible that I forget it (sorry), here there is:
Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.5 root@c3k Fri May 14 16:17:38 MDT 2004
Skipping extended partition 7 - beyond reach of IPL

Partition Start(MB) End(MB) Id Type
1               1      61   f0 Palo
2              62     306   82 swap
3             307     367   83 ext2
5             368    1953   83 ext2
6            1954    2197   83 ext2

PALO(F0) partition contains:

Information: No console specified on kernel command line. This is normal.=

PALO will choose the console currently used by firmware (serial).Current
command line:
3/vmlinux-2.4.26-64 root=3D/dev/sda5 HOME=3D/ console=3DttyS0 TERM=3Dvt10=
2
 0: 3/vmlinux-2.4.26-64
 1: root=3D/dev/sda5
 2: HOME=3D/
 3: console=3DttyS0
 4: TERM=3Dvt102

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? 0
3/vmlinux-2.4.26-64                     6.8-pa0         rc2-pa0
Current command line:
3/vmlinux-2.6.8-rc2-pa0 root=3D/dev/sda5 HOME=3D/ console=3DttyS0 TERM=3D=
vt102
 0: 3/vmlinux-2.6.8-rc2-pa0
 1: root=3D/dev/sda5
 2: HOME=3D/
 3: console=3DttyS0
 4: TERM=3Dvt102

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
? 0   b

Command line for kernel: 'root=3D/dev/sda5 HOME=3D/ console=3DttyS0 TERM=3D=
vt102
palo_kernel=3D3/vmlinux-2.6.8-rc2-pa0'
Selected kernel: /vmlinux-2.6.8-rc2-pa0 from partition 3
ELF64 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 4374912 mediaptr 0x1000
Segment 1 load 00530000 size 346616 mediaptr 0x42e000
Segment 2 load 00588000 size 258181 mediaptr 0x483000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.8-rc2-pa0 (root@patst006) (gcc version 3.0.4) #2 Fri Ju=
l
23 09:11:45 CEST 2004
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
Determining PDC firmware type: 64 bit PAT.
model 00005d30 00000491 00000000 00000002 27988e5d 100000f1 00000008 0000=
00b2
000000b2
vers  00000301
CPUID vers 18 rev 11 (0x0000024b)
capabilities 0x1
model 9000/800/N4000-55
This Machine has more memory ranges than we support!
Some memory will not be used!
Total Memory: 2048 Mb
On node 0 totalpages: 524288
  DMA zone: 524288 pages, LIFO batch:16
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Built 1 zonelists
Kernel command line: root=3D/dev/sda5 HOME=3D/ console=3DttyS0 TERM=3Dvt1=
02 palo_kernel=3D3/vmlinux-2.6.8-rc2-pa0
PID hash table entries: 16 (order 4: 256 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
Memory: 2097152k available
Calibrating delay loop... 1093.63 BogoMIPS
Mount-cache hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Memory at 0xfffffffffedc0000 [192] { 1, 0x0, 0x090, 0x00009 }
2. IKE I/O BC Merced Port at 0xfffffffffed00000 [0] { 7, 0x0, 0x803, 0x00=
00c
}
3. Elroy PCI Bridge at 0xffffffffbffe0000 [0/0] { 13, 0x0, 0x782, 0x0000a=

}
4. Elroy PCI Bridge at 0xffffffffbffe2000 [0/1] { 13, 0x0, 0x782, 0x0000a=

}
5. Elroy PCI Bridge at 0xffffffffbffe4000 [0/2] { 13, 0x0, 0x782, 0x0000a=

}
6. Elroy PCI Bridge at 0xffffffffbffe8000 [0/4] { 13, 0x0, 0x782, 0x0000a=

}
7. Elroy PCI Bridge at 0xffffffffbffea000 [0/5] { 13, 0x0, 0x782, 0x0000a=

}
8. Elroy PCI Bridge at 0xffffffffbfff0000 [0/8] { 13, 0x0, 0x782, 0x0000a=

}
9. Elroy PCI Bridge at 0xffffffffbfff4000 [0/10] { 13, 0x0, 0x782, 0x0000=
a
}
10. Elroy PCI Bridge at 0xffffffffbfff8000 [0/12] { 13, 0x0, 0x782, 0x000=
0a
}
11. IKE I/O BC Merced Port at 0xfffffffffed40000 [1] { 7, 0x0, 0x803, 0x0=
000c
}
12. Elroy PCI Bridge at 0xfffffffffece0000 [1/0] { 13, 0x0, 0x782, 0x0000=
a
}
13. Elroy PCI Bridge at 0xfffffffffece4000 [1/2] { 13, 0x0, 0x782, 0x0000=
a
}
14. Elroy PCI Bridge at 0xfffffffffece8000 [1/4] { 13, 0x0, 0x782, 0x0000=
a
}
15. Elroy PCI Bridge at 0xfffffffffecf0000 [1/8] { 13, 0x0, 0x782, 0x0000=
a
}
16. Elroy PCI Bridge at 0xfffffffffecf4000 [1/10] { 13, 0x0, 0x782, 0x000=
0a
}
17. Elroy PCI Bridge at 0xfffffffffecf8000 [1/12] { 13, 0x0, 0x782, 0x000=
0a
}
18. DEW BC Runway Port at 0xfffffffffed24000 [36] { 7, 0x0, 0x584, 0x0000=
c
}
19. Prelude W+ 540 at 0xfffffffffed25000 [37] { 0, 0x0, 0x5d3, 0x00000 }
20. DEW BC Runway Port at 0xfffffffffed2c000 [44] { 7, 0x0, 0x584, 0x0000=
c
}
21. Prelude W+ 540 at 0xfffffffffed2d000 [45] { 0, 0x0, 0x5d3, 0x00000 }
CONFIG_SMP=3Dn  ignoring additional CPUs
CPU: probe of parisc45 failed with error 1
CPU(s): 1 x PA8600 (PCX-W+) at 550.000000 MHz
SBA found Ike rev 2 at 0xfffffffffed00000
SBA found Ike rev 2 at 0xfffffffffed40000
lba version TR4.0 (0x5) found at 0xffffffffbffe0000
iosapic: no IRTE for 0000:00:04.0 (IRQ not connected?)
lba version TR4.0 (0x5) found at 0xffffffffbffe2000
lba version TR4.0 (0x5) found at 0xffffffffbffe4000
lba version TR4.0 (0x5) found at 0xffffffffbffe8000
lba version TR4.0 (0x5) found at 0xffffffffbffea000
lba version TR4.0 (0x5) found at 0xffffffffbfff0000
lba version TR4.0 (0x5) found at 0xffffffffbfff4000
lba version TR4.0 (0x5) found at 0xffffffffbfff8000
lba version TR4.0 (0x5) found at 0xfffffffffece0000
lba version TR4.0 (0x5) found at 0xfffffffffece4000
lba version TR4.0 (0x5) found at 0xfffffffffece8000
lba version TR4.0 (0x5) found at 0xfffffffffecf0000
lba version TR4.0 (0x5) found at 0xfffffffffecf4000
lba version TR4.0 (0x5) found at 0xfffffffffecf8000
SCSI subsystem initialized
unwind_init: start =3D 0x103fbbc0, end =3D 0x1041e250, entries =3D 8809
Performance monitoring counters enabled for Prelude W+ 540
Initializing Cryptographic API
Soft power switch support not available.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 17 ports, IRQ sharing enabled=

ttyS0 at MMIO 0xffffffff80000000 (irq =3D 132) is a 16550A
ttyS1 at MMIO 0xffffffff80000008 (irq =3D 132) is a 16450
ttyS2 at MMIO 0xffffffff80000010 (irq =3D 132) is a 16550A
ttyS3 at MMIO 0xffffffff80000038 (irq =3D 132) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 1.1.13 (May 11, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21143 Tulip rev 65 at 0xffffffff80003000, 00:30:6E:1C:B2:=
0B,
IRQ 128.
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) bloc=
k.
tulip1: ***WARNING***: No MII transceiver found!
eth1: Digital DS21143 Tulip rev 65 at 0xffffffff8a000000, 00:30:6E:21:14:=
B4,
IRQ 384.
sym0: <895> rev 0x1 at pci 0000:00:01.0 irq 129
sym0: No NVRAM, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
sym0: SCSI BUS mode change from SE to SE.
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18j
Using anticipatory io scheduler
  Vendor: SEAGATE   Model: ST39103LW         Rev: HP04
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:8:0: tagged command queuing enabled, command queue depth 16.
scsi(0:0:8:0): Beginning Domain Validation
sym0:8: wide asynchronous.
sym0:8: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
scsi(0:0:8:0): Domain Validation skipping write tests
scsi(0:0:8:0): Ending Domain Validation
sym1: <875> rev 0x37 at pci 0000:00:02.0 irq 130
sym1: No NVRAM, ID 7, Fast-20, SE, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.1.18j
sym2: <875> rev 0x37 at pci 0000:00:02.1 irq 131
sym2: No NVRAM, ID 7, Fast-20, SE, parity checking
sym2: SCSI BUS has been reset.
scsi2 : sym-2.1.18j
st: Version 20040403, fixed bufsize 32768, s/g segs 256
SCSI device sda: 17783112 512-byte hdwr sectors (9105 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 >
Attached scsi disk sda at scsi0, channel 0, id 8, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 8, lun 0,  type 0
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: md driver 0.90.0 MAX_MD_DEVS=3D256, MD_SB_DISKS=3D27
NET: Registered protocol family 2
IP: routing cache hash table of 16384 buckets, 128Kbytes
TCP: Hash tables configured (established 524288 bind 65536)
NET: Registered protocol family 1
NET: Registered protocol family 17
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 256k freed
INIT: version 2.85 booting
Usage: vt-is-UTF8 [option]
valid options are:
	-q  --quiet    don't print result
	-h --help      display this help text and exit
	-V --version   display version information and exit
Activating swap.
Adding 250872k swap on /dev/sda2.  Priority:-1 extents:1
Checking root file system...
fsck 1.35 (28-Feb-2004)
/dev/sda5: clean, 58224/203008 files, 274675/406012 blocks
EXT3 FS on sda5, internal journal
System time was Fri Jul 23 08:18:46 UTC 2004.
Setting the System Clock using the Hardware Clock as reference...
System Clock set. System local time is now Fri Jul 23 08:18:48 UTC 2004.
Not running depmod because /lib/modules/2.6.8-rc2-pa0/ is not writeable.
Loading modules...
All modules loaded.
FATAL: Could not load /lib/modules/2.6.8-rc2-pa0/modules.dep: No such fil=
e
or directory
Checking all file systems...
fsck 1.35 (28-Feb-2004)
/dev/sda3: clean, 40/15616 files, 46384/62464 blocks
/dev/sda6: clean, 5954/62496 files, 180281/249840 blocks
/dev/sda7: clean, 15/31232 files, 8069/124912 blocks
/dev/sda8: clean, 176/31232 files, 24441/124912 blocks
/dev/sda9: clean, 93347/250368 files, 398546/499964 blocks
/dev/sda10: clean, 2374/250368 files, 313754/499964 blocks
/dev/sda11: clean, 81794/250368 files, 318045/499964 blocks
Loading the saved-state of the serial devices from /etc/serial.conf
Setting kernel variables ...
... done.
Mounting local filesystems...
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda6, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda7, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda8, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda9, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda10, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda11, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
/dev/sda3 on /boot type ext3 (rw)
/dev/sda6 on /var type ext3 (rw)
/dev/sda7 on /tmp type ext3 (rw)
/dev/sda8 on /home type ext3 (rw)
tmpfs on /var/Tmp type tmpfs (rw)
/dev/sda9 on /usr/src type ext3 (rw)
/dev/sda10 on /Sources type ext3 (rw)
/dev/sda11 on /Develop type ext3 (rw)
Cleaning /tmp /var/run /var/lock.
Discovering hardware: sym53c8xx
FATAL: Could not load /lib/modules/2.6.8-rc2-pa0/modules.dep: No such fil=
e
or directory
Skipping sym53c8xx; assuming it is compiled into the kernel.
Running 0dns-down to make sure resolv.conf is ok...done.
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces...done.
Starting portmap daemon: portmap.

Setting the System Clock using the Hardware Clock as reference...
System Clock set. Local time: Fri Jul 23 10:18:54 CEST 2004

Initializing random number generator...done.
Recovering nvi editor sessions... done.
Setting up X server socket directory /tmp/.X11-unix...done.
Setting up ICE socket directory /tmp/.ICE-unix...done.
INIT: Entering runlevel: 2
Starting system log daemon: syslogdmodprobe: FATAL: Could not load /lib/m=
odules/2.6.8-rc2-pa0/modules.dep:
No such file or directory

.
Starting kernel log daemon: klogd.
Starting portmap daemon: portmap.
Starting GKrellM monitoring daemon: gkrellmd.
Starting internet superserver: inetd.
Starting printer spooler: lpd .
Not starting NFS kernel daemon: No exports.

************* SYSTEM ALERT **************
SYSTEM NAME: ap8002
DATE: 07/23/2004 TIME: 08:19:01
ALERT LEVEL: 7 =3D reserved

REASON FOR ALERT
SOURCE: 0 =3D unknown, no source stated
SOURCE DETAIL: 0 =3D unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 =3D no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    OFF           OFF       ON         ON
LED State: Running non-OS code. (i.e. Boot or Diagnostics)

0x0000107000FF6292 000000FF FF800000 - type  0 =3D Data Field Unused
0x5800187000FF6292 00006806 17081301 - type 11 =3D Timestamp 07/23/2004 0=
8:19:01
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:x
*****************************************

CAUTION: System Alerts have been disabled. This will re-enable with
a re-boot or power-on of the system. To re-enable system alerts now, you
may use the AC (Alert Display Configuration) command.

************* SYSTEM ALERT **************
Alert messages are now disabled. Enter Commands Interface AC command to
enable them again
*****************************************
=3D=3D=3D=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D=3D=3D=3D

So if I well understand the responder is the CPU and requestor is:
18. DEW BC Runway Port at 0xfffffffffed24000 [36] { 7, 0x0, 0x584, 0x0000=
c
}
?

> > I doubt that help but the IAOQ
> > IAOQ =3D 0x00000000101064b8 for CPU[1]
> > pointing to
> > Func: L4^B1, Off: 0xb8, Addr: 0x101064b8
> >
> >     101064b0:	2f 10 12 2f 	fstd,ma fr15,8(,r24)
> >     101064b4:	2f 10 12 30 	fstd,ma fr16,8(,r24)
> >     101064b8:	2f 10 12 31 	fstd,ma fr17,8(,r24)
> >     101064bc:	2f 10 12 32 	fstd,ma fr18,8(,r24)
>
> Context switch code or setting up initial state.
umm as already in 'init 2' so I presume much more Contest switch?

> > while iirc gr[2] is the rp and point to Func: do_no_page, Off: 0x274,=

Addr:
> > 0x10182f04
> >
> > GR[02] =3D=3D rp =3D 0000000010182f04
> >
> > Func: do_no_page, Off: 0x274, Addr: 0x10182f04
> >
> >     10182f00:	08 da 0a 3a 	add,l r26,r6,r26
> >     10182f04:	08 0a 02 5b 	copy r10,dp
> >     10182f08:	34 19 00 80 	ldi 40,r25
> >     10182f0c:	2b 6b 00 00 	addil 16000,dp,%r1
> >
> > What did I missed (is there some relationship between?) ?
>
> I don't know.
Was it the right gr to observe
(I am a still a bit confused because there are also gr31 for long branch
but I don't yet understand when it is still relevant ?)

> > And a bit different then <http://lists.parisc-linux.org/pipermail/par=
isc-linux/2004-July/024163.html>
> > where the panic seems to occurs earlier?
>
> It might be. But it's certainly not the identical problem since N-class=

> does not have SuckyIO and it's USB problems.

Agree (one common thing was running a UP kernel on a SMP capable system)


That said, I also grab the precompile one:
http://cvs.parisc-linux.org/download/linux-2.6/autobuild/n4000_defconfig/=
palinux-n4000-defconfig-2.6.8-rc2-pa1_0-2_all.deb
that doesn't help (btw this hpmc just after the print 'INIT 2' :( )

Also,  the last kernel runing fine on this system (even with DISCONTIGMEM=
)
was a 2.6.7-pa7 + the Randolph patch called 'try 2' with a config file ne=
ar
the a500_defconfig file (n4000_defconfig wasn't yet available)
On the other hand b2k running fine with c3000_defconfig + 64bit.

So I trust that could be a pb of config file; I so get back the 2.6.7-pa7=

the operational one but doesn't still help but there are still some diff:=

# diff -Nau config-2.6.7+rc-operational config-2.6.8-rc2-pa1-NotYetWorkin=
g
| grep "[+-]CONFIG"
+CONFIG_PREVENT_FIRMWARE_BUILD=3Dy
+CONFIG_UDF_NLS=3Dy
+CONFIG_FAT_DEFAULT_CODEPAGE=3D437
+CONFIG_FAT_DEFAULT_IOCHARSET=3D"iso8859-1"
+CONFIG_CRC_CCITT=3Dm

still have to test the two first y (not in b2k config?)

I will come back to you asap with more results.

Thanks again for your attention,
    Joel


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On Mon, Jul 26, 2004 at 06:42:45PM +0200, Joel Soete wrote:
> Umm i can try tommorrow.
> I just didn't do it till now because the only thing that is reproducible
> is the panic during the init 2, otc it doesn't seems to always hpmc a the
> same plae.

Well you can rule out any scripts that are started during "init 1".
Most likely, this is a bug related to networking.

> > > System Responder Address     = 0xfffffffffed25000
> > > System Requestor Address     = 0x000000fffed24000
> >
> > Requestor is likely a CPU. What is Responder? another CPU?
> > console output will tell us and sorry if you already sent it.
> >
> It possible that I forget it (sorry), here there is:

It is the second CPU.
So IPI is either not working or the second CPU is trying to start.
Can you try with ""maxcpus=1" and again with "nosmp"?
(see http://www.ibiblio.org/mdw/HOWTO/BootPrompt-HOWTO-3.html#ss3.4
for a description of those.)

grant
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A small followup:

> > And I test it obiously (I just move cron atd and inetd with a .SAV ex=
tension;
> > that should be enough?) but unfortunately it doesn't help (the system=

> always
> > do an hpmc at the same palce:( ).
> > Even if I DECONFIGURE the second CPU?
> >
> > I haven't any more idea. (was it a pb already in 2.6.7>pa7 which I mi=
ssed
> > because I didn't realized enough test after that; or a new pb coming
with
> > 2.6.8? I laready tried to revert patches step by step from 2.6.7-pa15=

> to
> > pa8 against 2.6.8-rc2-pa1, but it didn't help yet :( )
> >
I revert 2.6.8-pa1 from 2.6.7-pa15 until 2.6.7-pa7 (the last know running=

2.6.7)  on this N4k with the n4000_defconfig and that's working. I mean
it is definitely not the upgrade 2.6.7 to 2.6.8 the cause of this pb, not=

more the n4000_defconfig.
So the weird stuff is in 'CONFIG_DISCONTIGMEM' patch even if the pb occur=
es
when this option is selected or not.

It's perfectly runing on the b2k (64bit kernel) (I suppose also on the n4=
k
that Randolph test also but with more ram than I)
but not on this n4k in particular?

Randolph may be have you another idea, the last DISCONTIGMEM patch runnin=
g
on this system was the first that you called 'try2' then diepest changes
occurs (the most difficult to understand for me are allways *.S :( ). 
umm I don't think that it's possible to split it in smallest hunk?

Joel



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> Well here is my fix:
> --- linux-2.6.8-rc2-pa2+/arch/parisc/kernel/entry.S.Orig	2004-07-29 10:59:50.000000000
> +0200
> +++ linux-2.6.8-rc2-pa2+/arch/parisc/kernel/entry.S	2004-07-29 11:04:32.000000000
> +0200
> @@ -494,6 +494,7 @@
>  	 * under 4GB of memory) */
>  	.macro		L3_ptep pgd,pte,index,va,fault
>  	extrd,u		\va,63-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index
> +	copy		%r0,\pte
>  	extrd,u,*=	\va,31,32,%r0
>  	ldw,s		\index(\pgd),\pgd
>  	extrd,u,*=	\va,31,32,%r0
> ======><======

> Well I couldn't yet explain why that's required :( !

Just after the last insn above is the insn:

	bb,>=,n         \pgd,_PxD_PRESENT_BIT,\fault

You are setting pte to 0 for the case when the branch is taken.
The L2_ptep macro does this, so it makes some sense.  It's somewhat
tricky to track the uses of the register when a fault occurs.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] "Unknown machine at ..." on N4k
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On Thu, Jul 22, 2004 at 08:05:32AM +0200, Joel Soete wrote:
> umm I was curious to know why the code find sversion=0x0 while
> hp_hardware_list awaiting 0x4 (as for all other CPUs)?
> (a firmware pb, another pdc location or awaited 0x4 is wrong in my case
> (I can only test one N) and another entry should be added with sversion=0x0?)

I suggest just adding another entry to hp_hardware_list[].
It's either a bug in either the PDC implementation or the IO ACD
(Arch Control Doc) we took the initial table from. I'm much more
inclined to believe we transposed/updated the table incorrectly.

grant
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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] "Unknown machine at ..." on N4k
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Grant,

> 
> On Thu, Jul 22, 2004 at 08:05:32AM +0200, Joel Soete wrote:
> > umm I was curious to know why the code find sversion=3D0x0 while
> > hp_hardware_list awaiting 0x4 (as for all other CPUs)?
> > (a firmware pb, another pdc location or awaited 0x4 is wrong in my ca=
se
> > (I can only test one N) and another entry should be added with sversi=
on=3D0x0?)
> 
> I suggest just adding another entry to hp_hardware_list[].
> It's either a bug in either the PDC implementation or the IO ACD
> (Arch Control Doc) we took the initial table from. I'm much more
> inclined to believe we transposed/updated the table incorrectly.
> 
Something like:
--- arch/parisc/kernel/hardware.c.ORIG	2004-06-07 08:18:42.000000000 +020=
0
+++ arch/parisc/kernel/hardware.c	2004-07-23 08:43:59.000000000 +0200
@@ -209,6 +209,7 @@
 	{HPHW_NPROC,0x5D0,0x4,0x81,"Kazoo W+"},
 	{HPHW_NPROC,0x5D1,0x4,0x91,"Forte W+ 2w"},
 	{HPHW_NPROC,0x5D2,0x4,0x91,"Forte W+ 4w"},
+	{HPHW_NPROC,0x5D3,0x0,0x91,"Prelude W+ 540"},
 	{HPHW_NPROC,0x5D3,0x4,0x91,"Prelude W+ 540"},
 	{HPHW_NPROC,0x5D4,0x4,0x91,"Duet W+"},
 	{HPHW_NPROC,0x5D5,0x4,0x91,"Crescendo 550"},
=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D

do:
[...]
17. Elroy PCI Bridge at 0xfffffffffecf8000 [1/12] { 13, 0x0, 0x782, 0x000=
0a
}
18. DEW BC Runway Port at 0xfffffffffed24000 [36] { 7, 0x0, 0x584, 0x0000=
c
}
19. Prelude W+ 540 at 0xfffffffffed25000 [37] { 0, 0x0, 0x5d3, 0x00000 }
20. DEW BC Runway Port at 0xfffffffffed2c000 [44] { 7, 0x0, 0x584, 0x0000=
c
}
21. Prelude W+ 540 at 0xfffffffffed2d000 [45] { 0, 0x0, 0x5d3, 0x00000 }
CONFIG_SMP=3Dn  ignoring additional CPUs
CPU: probe of parisc45 failed with error 1
CPU(s): 1 x PA8600 (PCX-W+) at 550.000000 MHz
SBA found Ike rev 2 at 0xfffffffffed00000
[...]

Is anybody else has such model to test it?

hth,
    Joel


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Subject: Re: [parisc-linux] uninline in bitops.c as ia64 or sparc64?
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Hello *,

> Subject: Re: [parisc-linux] uninline in bitops.c as ia64 or sparc64?
> 
> 
> On Tue August 10 2004 09:51, John David Anglin wrote:
> > > On Mon, Aug 09, 2004 at 09:54:08AM -0500, Michael S. Zick wrote:
> > > > generic_ffz is defined as integer - is 'integer' the same size
> > > > cpu32 and cpu64?  If not, that routine needs a size-conditional
> > > > test for the other 32 bits on cpu64.
> > > 
> > > Integers are the same size. The 64-bit boxes are LP64.
> > 
> > To be more specific, the 'int' types are the same size.  The 'long'
> > types are different.
> > 
> > Dave
> Thanks -
> I was able to get my other questions answered with
> a little bit of work with the x-compiler and code snippets.
> 
> I am beginning to think I will learn more than I ever wanted
> to know about a hand-full of hp-instructions before I am done.
> 
> Still, it is an interesting problem and Joel has volunteered
> to test.
> 
Here is the smal test case I tested:
#ifndef __LP64__
#include <stdio.h>
#include <limits.h>
#else
#include "64bit/lib/headers.h"

#define print1(str, num) \
	print(str); \
	hex((unsigned long)num, buf); \
	print(buf); \
	print("\n")
#endif


/*
 * ffs: find first bit set. This is defined the same way as
 * the libc and compiler builtin ffs routines, therefore
 * differs in spirit from the above ffz (man ffs).
 */

/* Extended version for ulong param x */

static __inline__ unsigned long generic_ffs(unsigned long x)
{
        unsigned long r =3D 1;

        if (!x)
                return 0;
#ifdef __LP64__
        if (!(x & 0xffffffffUL)) {
                x >>=3D 32;
                r +=3D 32;
        }
#endif
        if (!(x & 0xffffUL)) {
                x >>=3D 16;
                r +=3D 16;
        }
        if (!(x & 0xffUL)) {
                x >>=3D 8;
                r +=3D 8;
        }
        if (!(x & 0xfUL)) {
                x >>=3D 4;
                r +=3D 4;
        }
        if (!(x & 3UL)) {
                x >>=3D 2;
                r +=3D 2;
        }
        if (!(x & 1UL)) {
                x >>=3D 1;
                r +=3D 1;
        }
        return r;
}

static __inline__ unsigned long __ffs(unsigned long x)
{
	unsigned long ret;

	__asm__(
#ifdef __LP64__
		" ldi       63,%1\n"
		" extrd,u,*<>  %0,63,32,%%r0\n"
		" extrd,u,*TR  %0,31,32,%0\n"	/* move top 32-bits down */
		" addi    -32,%1,%1\n"
		" extrd,u,*<>  %0,63,16,%%r0\n"
		" extrd,u,*TR  %0,47,16,%0\n"   /* xxxx0000 -> 0000xxxx */
		" addi    -16,%1,%1\n"
		" extrd,u,*<>  %0,63,8,%%r0\n"
		" extrd,u,*TR  %0,55,8,%0\n"    /* 0000xx00 -> 000000xx */
		" addi    -8,%1,%1\n"
		" extrd,u,*<>  %0,63,4,%%r0\n"
		" extrd,u,*TR  %0,59,4,%0\n"    /* 000000x0 -> 0000000x */
		" addi    -4,%1,%1\n"
		" extrd,u,*<>  %0,63,2,%%r0\n"
		" extrd,u,*TR  %0,61,2,%0\n"    /* 0000000y, 1100b -> 0011b */
		" addi    -2,%1,%1\n"
		" extrd,u,*=3D  %0,63,1,%%r0\n"   /* check last bit */
		" addi    -1,%1,%1\n"
#else
		" ldi       31,%1\n"
		" extru,<>  %0,31,16,%%r0\n"
		" extru,TR  %0,15,16,%0\n"	/* xxxx0000 -> 0000xxxx */
		" addi    -16,%1,%1\n"
		" extru,<>  %0,31,8,%%r0\n"
		" extru,TR  %0,23,8,%0\n"	/* 0000xx00 -> 000000xx */
		" addi    -8,%1,%1\n"
		" extru,<>  %0,31,4,%%r0\n"
		" extru,TR  %0,27,4,%0\n"	/* 000000x0 -> 0000000x */
		" addi    -4,%1,%1\n"
		" extru,<>  %0,31,2,%%r0\n"
		" extru,TR  %0,29,2,%0\n"	/* 0000000y, 1100b -> 0011b */
		" addi    -2,%1,%1\n"
		" extru,=3D  %0,31,1,%%r0\n"	/* check last bit */
		" addi    -1,%1,%1\n"
#endif
			: "+r" (x), "=3Dr" (ret) );
	return ret;
}

static unsigned long ULffs(unsigned long x)
{
	return x ? (__ffs((unsigned long)x) + 1) : 0;
}

main()
{
	char buf[512];
	unsigned long i, Extrd;

#ifndef __LP64__
	printf("Computing ffs() for i =3D %u to %u...\n", 0, 0xffffffffU);
	for (i=3D0x0UL; i<0xffffffffUL; i++) {
		if ( generic_ffs(i) !=3D ULffs(i) ) {
			printf("i =3D %#010x (%u)\n", i, i);
			printf("generic_ffs() =3D %u\n", generic_ffs(i));
			printf("ffs() =3D %u\n", ULffs(i));
		}
	}
	printf("i=3D %#010x (%u), finished.\n", i, i);
#else
	for (i=3D0xfffffffUL; i<0xf00000000UL; i++) {
		if ( generic_ffs(i) !=3D ULffs(i) ) {
			print1("i =3D ", i);
			print1("generic_ffs() =3D ", generic_ffs(i));
			print1("ffs() =3D ", ULffs(i));
		}
	}
#endif
}

I compile it with James 64bit lib with hppa64-linux-gcc (3.0.4) and run
it on a b2k (64bit cpu) with 2.6.8-rc2-pa7 64bit.
That's a long test (reason of delay) but it works fine.

I also test the 32bit binaries (compile with gcc-3.3.4) runing on the b2k=

with same kernel and it also works fine.

Please note that I have to abuse the original ffs() code with ULffs() and=

an unsigned long (64bit long for hppa64-gcc) as parameter (the original
was an integer of 32bit long for 64bit and 32bit gcc).

hth,
    Joel


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Subject: [parisc-linux] Should I read SHR[DW] as SHRP[DW] in parisc2.pdf?
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Xref: news.gmane.org gmane.linux.ports.parisc:24889

Hi all,

About parisc 2.0 insn set at pages 7-49 and 7-51 I read SHRD,S,cond ...
and SHRW,S,cond ... but I don't find this mnemonic elsewhere in this book=
;
should I better read SHRPD and SHRPW respectively (mnemonic well defined)=
?

Thanks in advance for help,
    Joel

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Subject: RE: [parisc-linux] Should I read SHR[DW] as SHRP[DW] in parisc2.pdf?
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Xref: news.gmane.org gmane.linux.ports.parisc:24890

Joel:

No.  SHRD and SHRW are not the same operations as SHRPD and SHRPW.  SHRD and
SHRW are not "real" machine instructions - they are pseudo-ops that the
assembler is supposed to recognize and convert to the appropriate "real"
instructions, in this case, EXTRD and EXTRW, respectively.  These pseudo-ops
exist solely for the convenience of the assembly programmer.  Rather than having
to remember that to do a right-shift operation, you need to code an EXTR[DW],
and figure out the correct pos and len arguments, you just write SHR[DW].

Similarly, SHLD (see notes on DEPD page), and SHLW (see notes on DEPW page) are
pseudo-ops for doing left-shifts.

Does the PA2.0 gnu assembler not recognize these (and other) pseudo-ops?  I'll
be the first to admit that we didn't do a very good job of documenting all the
PA2.0 pseudo-ops.  You might have expected a nice summary table in Appendix J,
but although the PA1.1 to PA2.0 pseudo-ops are there, the regular PA2.0 ones
aren't.  The only good way to find them all is to do a search for "pseudo" in
the PDF.

Here's what my search of:

 
http://h21007.www2.hp.com/dspp/files/unprotected/parisc20/PA_7_inst_descriptions
.pdf

found:

PDF Page  Page Number  Pseudo-Op           Real Instruction
-----------------------------------------------------------------------
13        7-11         B,n target          B,L,n target,%R0
                       CALL,n target       B,L,n target,%R2

23        7-21         CALL,n (b)          BVE,L,n (b),%R2
                       RET,n               BE,n (%R2)

41        7-39         SHLD,cond r,sa,t    DEPD,Z,cond r,63-sa,64-sa,t
                       SHLW,cond r,sa,t    DEPW,Z,cond r,31-sa,32-sa,t

51        7-49         SHRD,S,cond r,sa,t  EXTRD,S,cond r,63-sa,64-sa,t
                       SHRD,U,cond r,sa,t  EXTRD,U,cond r,63-sa,64-sa,t

53        7-51         SHRW,S,cond r,sa,t  EXTRW,S,cond r,31-sa,32-sa,t
                       SHRW,U,cond r,sa,t  EXTRW,U,cond r,31-sa,32-sa,t

85        7-83         LDI i,t             LDO i(0),t
                       COPY r,t            LDO 0(r),t

100       7-98         MTSAR r             MTCTL r,%SAR

105       7-103        NOP                 OR %R0,%R0,%R0

 -- Jim Hull
    PA-RISC/Itanium Processor Architect

> -----Original Message-----
> From: parisc-linux-bounces@lists.parisc-linux.org 
> [mailto:parisc-linux-bounces@lists.parisc-linux.org] On 
> Behalf Of Joel Soete
> Sent: Wednesday, August 11, 2004 10:35 AM
> To: List Parisc
> Subject: [parisc-linux] Should I read SHR[DW] as SHRP[DW] in 
> parisc2.pdf?
> 
> Hi all,
> 
> About parisc 2.0 insn set at pages 7-49 and 7-51 I read 
> SHRD,S,cond ...
> and SHRW,S,cond ... but I don't find this mnemonic elsewhere 
> in this book;
> should I better read SHRPD and SHRPW respectively (mnemonic 
> well defined)?
> 
> Thanks in advance for help,
>     Joel
> 
> --------------------------------------------------------------
> -------------
> Tiscali ADSL LIGHT, 19,95 EUR/mois pendant 6 mois, c'est le 
> moment de faire
> le pas!
> http://reg.tiscali.be/default.asp?lg=fr
> 
> 
> 
> 
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> 


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On Sat, Aug 14, 2004 at 10:08:07PM +0100, Matthew Wilcox wrote:
> The remainder:
> -rw-r--r--    1 willy    willy       20803 Aug 14 14:58 one.diff
> is composed of:
...
>  - tulip MII changes that someone needs to engage jgarzik in
>    bare-knuckle boxing over.

akpm (Andrew Morton) said I should send those to him.
My plan was to refresh the two sets of changes I have for tulip that
jgarzik hasn't accepted (because of udelay() calls). Then send those
to akpm + linux-net + jgarzik and ask innocently if there is
a better way to do the udelay() (someone suggested msleep() might be
an option).

> So a lot of minor stuff, but it's still not possible to build parisc
> out of Linus' tree ;-(

Well, don't despair. We really are not that far off.
Just need more time to work on it. I'm starting to feel a need for
another 3month unpaid leave of absence...maybe next summer...

grant
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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 53c700.h backport (solve: use cast of expressions as
	lvalue...)
Date: Thu, 19 Aug 2004 09:30:13 +0000
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 "List Parisc" <parisc-linux@parisc-linux.org>
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Hello James,

Here is a small patch backport stuff into 53c700.h to cleanup warning: us=
e
cast of expressions as lvalue is deprecated)

diff -NaurX ../dontdiff linux-2.4.27-pa1/drivers/scsi/53c700.h linux-2.4.=
27-rc4-pa7MM/drivers/scsi/53c700.h
--- linux-2.4.27-pa1/drivers/scsi/53c700.h	2002-06-06 09:55:58.000000000
+0200
+++ linux-2.4.27-rc4-pa7MM/drivers/scsi/53c700.h	2004-07-07 13:41:03.0000=
00000
+0200
@@ -109,18 +109,25 @@
 static inline void
 NCR_700_set_SXFER(Scsi_Device *SDp, __u8 sxfer)
 {
-	((unsigned long)SDp->hostdata) &=3D 0xffffff00;
-	((unsigned long)SDp->hostdata) |=3D sxfer & 0xff;
+	unsigned long l =3D (unsigned long)SDp->hostdata;
+
+	l &=3D 0xffffff00;
+	l |=3D sxfer & 0xff;
+	SDp->hostdata =3D (void *)l;
 }
-static inline __u8 NCR_700_get_SXFER(Scsi_Device *SDp)
+static inline __u8
+NCR_700_get_SXFER(Scsi_Device *SDp)
 {
 	return (((unsigned long)SDp->hostdata) & 0xff);
 }
 static inline void
 NCR_700_set_depth(Scsi_Device *SDp, __u8 depth)
 {
-	((unsigned long)SDp->hostdata) &=3D 0xffff00ff;
-	((unsigned long)SDp->hostdata) |=3D (0xff00 & (depth << 8));
+	unsigned long l =3D (unsigned long)SDp->hostdata;
+
+	l &=3D 0xffff00ff;
+	l |=3D (0xff00 & (depth << 8));
+	SDp->hostdata =3D (void *)l;
 }
 static inline __u8
 NCR_700_get_depth(Scsi_Device *SDp)
@@ -140,12 +147,18 @@
 static inline void
 NCR_700_set_flag(Scsi_Device *SDp, __u32 flag)
 {
-	((unsigned long)SDp->hostdata) |=3D (flag & 0xffff0000);
+	unsigned long l =3D (unsigned long)SDp->hostdata;
+
+	l |=3D (flag & 0xffff0000);
+	SDp->hostdata =3D (void *)l;
 }
 static inline void
 NCR_700_clear_flag(Scsi_Device *SDp, __u32 flag)
 {
-	((unsigned long)SDp->hostdata) &=3D ~(flag & 0xffff0000);
+	unsigned long l =3D (unsigned long)SDp->hostdata;
+
+	l &=3D ~(flag & 0xffff0000);
+	SDp->hostdata =3D (void *)l;
 }
 
 /* These represent the Nexus hashing functions.  A Nexus in SCSI terms
=3D=3D=3D=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D=3D=3D=3D

mmm just a small diff versus your 2.6: I choose l (ell) as 'unsigned long=
'
because afaik hostdata is a 'void *'

Please advise.

Joel

PS: If ok can you ci for me (no ci access to cvs) ;)
 

-------------------------------------------------------------------------=
--
Tiscali ADSL LIGHT, 19,95 EUR/mois pendant 6 mois, c'est le moment de fai=
re
le pas!
http://reg.tiscali.be/default.asp?lg=3Dfr




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Haven't done these in a while, so here goes:

I merged about 250k of patch to Linus right before 2.6.8 came out:

$ ls -l parisc-2.6.8*diff
-rw-r--r--    1 willy    willy      466638 Jul 27 18:54 parisc-2.6.8-rc2.diff
-rw-r--r--    1 willy    willy      484286 Aug 13 08:41 parisc-2.6.8-rc4.diff
-rw-r--r--    1 willy    willy      239078 Aug 14 11:22 parisc-2.6.8.1.diff

I just sent him another 20k:
-rw-r--r--    1 willy    willy       20698 Aug 14 14:30 sound-2.6.8.1.diff

The bulk of the patch is HIL and other input-related stuff:
-rw-r--r--    1 willy    willy      173466 Aug 14 14:43 hil-2.6.8.1.diff

Then there's the compat_siginfo patch:
-rw-r--r--    1 willy    willy       20071 Aug 14 14:56 compat-2.6.8.1.diff

The remainder:
-rw-r--r--    1 willy    willy       20803 Aug 14 14:58 one.diff
is composed of:
 - A gcc bug workaround
 - A BUG_ON() I added that never triggers
 - The console mess
 - SERIAL_IRQ_NONE
 - A couple of arch/parisc bits that got committed after I merged ;-)
 - smbfs CONFIG_UID16
 - console Kconfig changes
 - A minor sym2 change I need to send to James ;-)
 - A minor lasi700 change, ditto
 - pcmcia probing changes (James mentioning to Russell)
 - tulip MII changes that someone needs to engage jgarzik in
   bare-knuckle boxing over.
 - ns87415 IDE changes I need to investigate and send to Bart
 - an ia64 Kconfig change I should send to Tony.

So a lot of minor stuff, but it's still not possible to build parisc
out of Linus' tree ;-(

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Xref: news.gmane.org gmane.linux.ports.parisc:24894

Hi pa,

I just get the model that Randolph did to get some profile data
(unfortunately, I didn't reach to obtain a 4way system for the moment :(
)

i ran 'readprofile' on a 2.6.8.1-pa7 SMP kernel (N4000, 64-bit, 2way 550M=
hz)
build with profile option and booted with profile=3D2
the results are from
readprofile | sort -rn -k3 | head -30
and the counters were refreshed between test with "readprofile -r".


1) 'make clean; make -j4 vmlinux' on a 2.6.8.1-pa7 kernel tree:
 58253 cpu_idle                                 661.9659
 16622 flush_user_dcache_range_asm              461.7222
 16455 flush_user_icache_range_asm              457.0833
 35995 flush_kernel_icache_page                 359.9500
  3372 $lctu_done                               210.7500
  9650 machine_restart                          150.7812
 16458 __clear_user_page_asm                    146.9464
  1602 $lcfu_done                               133.5000
  1520 $lctu_loop                               126.6667
 41743 established_get_first                     86.9646
  9449 copy_user_page_asm                        62.1645
  1450 flush_data_cache_local                    36.2500
  3576 purge_kernel_dcache_page                  35.7600
  2567 strncpy                                   35.6528
 21036 established_get_next                      35.5338
  3495 flush_kernel_dcache_page                  34.9500
   226 $lslen_done                               28.2500
   443 $lclu_done                                27.6875
  2041 find_vma_prev                             19.6250
  1227 memcpy                                    19.1719
   195 $lcfu_loop                                16.2500
   153 $lslen_loop                               12.7500
    77 syscall_check_resched                      9.6250
   136 $lsfu_loop                                 8.5000
   289 intr_return                                8.0278
  5730 kallsyms_lookup                            7.8709
   746 flush_user_dcache_page                     7.4600
  1388 memset                                     6.9400
  1724 find_get_page                              6.5303
   698 clear_user_page_asm                        5.8167

2) from another machine on the same subnet, scp the whole glibc tree
    as a single tar.bz2 file:
 57213 cpu_idle                                 650.1477
  9409 machine_restart                          147.0156
   323 $lcfu_done                                26.9167
   211 $lctu_done                                13.1875
  2125 established_get_first                      4.4271
   114 flush_user_dcache_range_asm                3.1667
   113 flush_user_icache_range_asm                3.1389
    36 $lctu_loop                                 3.0000
   166 strncpy                                    2.3056
  1243 established_get_next                       2.0997
    19 $lcfu_loop                                 1.5833
   288 kallsyms_lookup                            0.3956
    32 sock_poll                                  0.3636
   114 finish_task_switch                         0.2415
    23 flush_kernel_icache_page                   0.2300
    36 seq_printf                                 0.2250
   179 $$divoI                                    0.1598
     3 syscall_exit                               0.1500
     8 __umoddi3                                  0.1429
    18 kmem_cache_alloc                           0.1250
     1 syscall_check_resched                      0.1250
   110 number                                     0.1228
    19 __wake_up                                  0.1187
     5 __udivdi3                                  0.1042
    13 add_wait_queue                             0.1016
    25 fget                                       0.1008
    18 __kmalloc                                  0.0900
    16 kmem_cache_free                            0.0833
     4 sched_clock                                0.0833
    16 memset                                     0.0800

3) cp -r glibc glibc.bak; sync (the copy on a symple disk slice: no lvm,
no raid, ...)
138222 cpu_idle                                 1570.7045
 22716 machine_restart                          354.9375
   967 $lcfu_done                                80.5833
   746 $lctu_done                                46.6250
   392 $lctu_loop                                32.6667
  5602 established_get_first                     11.6708
   238 flush_user_icache_range_asm                6.6111
   223 flush_user_dcache_range_asm                6.1944
  2821 established_get_next                       4.7652
   280 strncpy                                    3.8889
    44 $lcfu_loop                                 3.6667
   108 memscan                                    1.9286
    26 $lsfu_loop                                 1.6250
    95 memcpy                                     1.4844
   294 memset                                     1.4700
     4 $lsfu_done                                 1.0000
   137 kmem_cache_alloc                           0.9514
   623 kallsyms_lookup                            0.8558
   109 kmem_cache_free                            0.5677
   194 find_get_pages_tag                         0.5389
     4 syscall_check_resched                      0.5000
   525 $$divoI                                    0.4688
    28 memcmp                                     0.4375
    69 seq_printf                                 0.4313
    18 __udivdi3                                  0.3750
   329 number                                     0.3672
     7 syscall_exit                               0.3500
   153 finish_task_switch                         0.3242
    15 strlen                                     0.3125
    38 __getblk                                   0.2969

(isn't there too much machine_restart, no clue for the moment need to stu=
dy
more ;) )

Hope this could be intereting
    Joel




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On Tue, Aug 24, 2004 at 02:51:59PM +0200, Joel Soete wrote:
> Hi all,
> 
> Sorry for this auto-reply but I just reboot with success my N4k (smp 64bit
> kernel 2.6.8.1-pa7) with this patch and all works fine :)
> 
> If Ok for everybody can somebody ci for me (no cvs access :) )?

Do you have a 32-bit test program that shows this code works?

I'm one for writing a small test to verify that the code is doing what
the specification says it should.

c.

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> On Mon, Aug 23, 2004 at 11:01:11PM -0600, Grant Grundler wrote:
> > But the same bugs jejb found still exist in 2.4 kernels.
> > Kyle McMartin is looking at back porting those fixes and could
> > probably use help with the N4K and "mb() in spinlock()" patches.
> > 
> I passed the torch to Joel for this, :)
> 
Need a bit help:
_atomic_spin_[...], _raw_spin[...] are not in 2.4, exact?

in 2.4
I meet:
#define spin_lock(x) do { \
	while (__ldcw (&(x)->lock) =3D=3D 0) \
		while ((x)->lock =3D=3D 0) ; \
} while (0)

may I suggest to replace such thing by:
static inline void spin_lock(spinlock_t *x)
{
	volatile unsigned int *a;

	mb();
	a =3D __ldcw_align(x);
	while (__ldcw(a) =3D=3D 0)
		while (*a =3D=3D 0);
	mb();
}

Thanks in advance for feedback,
    Joel



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Subject: Re: [parisc-linux] bitops.h: fls(unsigned long )
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> On Tue, Aug 24, 2004 at 02:51:59PM +0200, Joel Soete wrote:
> > Sorry for this auto-reply but I just reboot with success my N4k (smp
64bit
> > kernel 2.6.8.1-pa7) with this patch and all works fine :)
> > 
> > If Ok for everybody can somebody ci for me (no cvs access :) )?
> 
> > > -static __inline__ int fls(int x)
> > > +static __inline__ int fls(unsigned long x)
> 
> This is absolutely not OK.  fls is prototyped to have an int parameter,=

> not an unsigned long.  Why do you want to do this, anyway?
> 
Oops: the original idea was to propose the equivalence of  __ffs(unsingne=
d
long). 

My bad.

Anyway it's tested fully ok and if we need it later, it's at least availa=
ble
in the list ;)

Thanks for advise,
    Joel

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To: Joel Soete <soete.joel@tiscali.be>
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On Tue, Aug 24, 2004 at 07:06:02PM +0200, Joel Soete wrote:
> And even a 64bit (using jejb 64bit lib :), just don't inline fls (if inline
> it does a segfault when finish)):
> 
> See attachment:
> bitops-tc3.c

Thanks! I'll check this out in 5 days, I'm very busy right now. If it
looks to work I'll check the test into out userspace test area.

Then I'll look at the kernel stuff.

c.

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At 04:38 2004-08-26, Andy Walker wrote:
> > A major issue with (older) PA-Risc CDRoms is not addressed in most
> > documentations:
> >
> > Any CDRom player wil work at runtime but booting from the player requires
> > a
> > different blocksize than most other architectures. Correct me if I'm wrong
> > but
> > PA-Risc CDRoms need a 2 KByte blocksize where most other architectures use
> > 512Byte blocksize.
>
>Back to front, I'm afraid. Sun, older HP (and possibly older SGI)

Yes!

>all
>want a block size of 512 bytes for booting. I guess the idea was that
>the ROM monitor could treat cds and harddisks alike if they had the same
>block size = less code!

precisely

>The PC world standardized on 2K bytes. Some cd units, notably Plextor
>handle the 2 Kbytes <-> 512 byte switch automagically in the firmware.
>Good old Toshibas (XM-3301 etc.),

and 3401B. Also NEC Multispin, definitely 3x, I think 6x as well (the ones 
with "flip-down" caddy entry and a lit LCD).

>as loved by HP and Sun, have a couple
>of solder pads that can be cut for 512 bytes and joined for 2K bytes.
>On some units these "switches" are available as jumpers, or exposed as
>switches on the external case.

Some (old Toshibas for sure) could be "tweaked" to do it through code (SCSI 
pages). I remember something about it in 93 or 94 on comp.sys.sgi.admin. 
There was some code posted that did it (at least for me, at least then...)


>For more info google for the Sun CDROM FAQ, or go via www.sunhelp.org.
>
>-Andy
>_______________________________________________
>parisc-linux mailing list
>parisc-linux@lists.parisc-linux.org
>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

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----- Forwarded message from Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl> -----

From: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
Reply-To: bzolnier@milosz.na.pl
To: Matthew Wilcox <willy@debian.org>
Subject: Re: [PATCH] PA-RISC IDE update
Date: Sat, 28 Aug 2004 17:08:35 +0200
User-Agent: KMail/1.6.2
In-Reply-To: <20040814221440.GE12936@parcelfarce.linux.theplanet.co.uk>


Hi,

On Sunday 15 August 2004 00:14, you wrote:
> Hi Bart
>
> Yet another patch to fix SuckyIO IDE on PA-RISC workstations.  SPARC64
> doesn't define CONFIG_SUPERIO so definitely won't be affected by this
> patch.

applied but SuckyIO workarounds should be later moved from superio.c to 
ns87415.c - no code outside drivers/ide/ should know anything about internal 
IDE driver structures such as struct hwif_s (ide_hwif_t) - please  fix it

thanks

> diff -urpNX dontdiff linus-2.6/drivers/ide/pci/ns87415.c
> parisc-2.6/drivers/ide/pci/ns87415.c ---
> linus-2.6/drivers/ide/pci/ns87415.c	Sat Aug 14 11:16:33 2004
> +++ parisc-2.6/drivers/ide/pci/ns87415.c	Sat Aug 14 11:05:30 2004
> @@ -24,6 +24,9 @@
>  #include <linux/init.h>
>
>  #include <asm/io.h>
> +#ifdef CONFIG_SUPERIO
> +#include <asm/superio.h>
> +#endif
>
>  static unsigned int ns87415_count = 0, ns87415_control[MAX_HWIFS] = { 0 };
>
> @@ -128,6 +131,13 @@ static int ns87415_ide_dma_check (ide_dr
>  	if (drive->media != ide_disk)
>  		return HWIF(drive)->ide_dma_off_quietly(drive);
>  	return __ide_dma_check(drive);
> +}
> +
> +static void __init init_iops_ns87415(ide_hwif_t *hwif)
> +{
> +#ifdef CONFIG_SUPERIO
> +	superio_ide_init_iops(hwif);
> +#endif
>  }
>
>  static void __init init_hwif_ns87415 (ide_hwif_t *hwif)

----- End forwarded message -----

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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The attached patch adds the new error codes I added for key-related errors to
those archs that don't make use of <asm-generic/errno.h>, including Alpha,
MIPS, PA-RISC, Sparc and Sparc64. This is required to compile with CONFIG_KEYS
on those platforms.

Signed-Off-By: David Howells <dhowells@redhat.com>
---

warthog>diffstat keys-errors-2681mm4.diff 
 asm-alpha/errno.h   |    4 ++++
 asm-mips/errno.h    |    4 ++++
 asm-parisc/errno.h  |    4 ++++
 asm-sparc/errno.h   |    4 ++++
 asm-sparc64/errno.h |    4 ++++
 5 files changed, 20 insertions(+)

diff -uNrp linux-2.6.8.1-mm4-keys/include/asm-alpha/errno.h linux-2.6.8.1-mm4-keys-read/include/asm-alpha/errno.h
--- linux-2.6.8.1-mm4-keys/include/asm-alpha/errno.h	2004-06-18 13:42:21.000000000 +0100
+++ linux-2.6.8.1-mm4-keys-read/include/asm-alpha/errno.h	2004-08-31 10:10:11.466082943 +0100
@@ -110,5 +110,9 @@
 
 #define ENOMEDIUM	129	/* No medium found */
 #define EMEDIUMTYPE	130	/* Wrong medium type */
+#define	ENOKEY		131	/* Required key not available */
+#define	EKEYEXPIRED	132	/* Key has expired */
+#define	EKEYREVOKED	133	/* Key has been revoked */
+#define	EKEYREJECTED	134	/* Key was rejected by service */
 
 #endif
diff -uNrp linux-2.6.8.1-mm4-keys/include/asm-mips/errno.h linux-2.6.8.1-mm4-keys-read/include/asm-mips/errno.h
--- linux-2.6.8.1-mm4-keys/include/asm-mips/errno.h	2004-06-18 13:42:12.000000000 +0100
+++ linux-2.6.8.1-mm4-keys-read/include/asm-mips/errno.h	2004-08-31 10:12:16.492662321 +0100
@@ -110,6 +110,10 @@
  */
 #define ENOMEDIUM	159	/* No medium found */
 #define EMEDIUMTYPE	160	/* Wrong medium type */
+#define	ENOKEY		161	/* Required key not available */
+#define	EKEYEXPIRED	162	/* Key has expired */
+#define	EKEYREVOKED	163	/* Key has been revoked */
+#define	EKEYREJECTED	164	/* Key was rejected by service */
 
 #define EDQUOT		1133	/* Quota exceeded */
 
diff -uNrp linux-2.6.8.1-mm4-keys/include/asm-parisc/errno.h linux-2.6.8.1-mm4-keys-read/include/asm-parisc/errno.h
--- linux-2.6.8.1-mm4-keys/include/asm-parisc/errno.h	2004-06-18 13:42:13.000000000 +0100
+++ linux-2.6.8.1-mm4-keys-read/include/asm-parisc/errno.h	2004-08-31 10:11:51.478747181 +0100
@@ -67,6 +67,10 @@
 #define	EREMOTEIO	181	/* Remote I/O error */
 #define	ENOMEDIUM	182	/* No medium found */
 #define	EMEDIUMTYPE	183	/* Wrong medium type */
+#define	ENOKEY		184	/* Required key not available */
+#define	EKEYEXPIRED	185	/* Key has expired */
+#define	EKEYREVOKED	186	/* Key has been revoked */
+#define	EKEYREJECTED	187	/* Key was rejected by service */
 
 /* We now return you to your regularly scheduled HPUX. */
 
diff -uNrp linux-2.6.8.1-mm4-keys/include/asm-sparc/errno.h linux-2.6.8.1-mm4-keys-read/include/asm-sparc/errno.h
--- linux-2.6.8.1-mm4-keys/include/asm-sparc/errno.h	2004-06-18 13:42:21.000000000 +0100
+++ linux-2.6.8.1-mm4-keys-read/include/asm-sparc/errno.h	2004-08-31 10:10:55.134443332 +0100
@@ -101,5 +101,9 @@
 
 #define	ENOMEDIUM	125	/* No medium found */
 #define	EMEDIUMTYPE	126	/* Wrong medium type */
+#define	ENOKEY		127	/* Required key not available */
+#define	EKEYEXPIRED	128	/* Key has expired */
+#define	EKEYREVOKED	129	/* Key has been revoked */
+#define	EKEYREJECTED	130	/* Key was rejected by service */
 
 #endif
diff -uNrp linux-2.6.8.1-mm4-keys/include/asm-sparc64/errno.h linux-2.6.8.1-mm4-keys-read/include/asm-sparc64/errno.h
--- linux-2.6.8.1-mm4-keys/include/asm-sparc64/errno.h	2004-06-18 13:42:22.000000000 +0100
+++ linux-2.6.8.1-mm4-keys-read/include/asm-sparc64/errno.h	2004-08-31 10:09:36.730977977 +0100
@@ -101,5 +101,9 @@
 
 #define ENOMEDIUM       125     /* No medium found */
 #define EMEDIUMTYPE     126     /* Wrong medium type */
+#define	ENOKEY		127	/* Required key not available */
+#define	EKEYEXPIRED	128	/* Key has expired */
+#define	EKEYREVOKED	129	/* Key has been revoked */
+#define	EKEYREJECTED	130	/* Key was rejected by service */
 
 #endif /* !(_SPARC64_ERRNO_H) */

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On Maw, 2004-08-31 at 16:12, David Howells wrote:
> The attached patch adds the new error codes I added for key-related errors to
> those archs that don't make use of <asm-generic/errno.h>, including Alpha,
> MIPS, PA-RISC, Sparc and Sparc64. This is required to compile with CONFIG_KEYS
> on those platforms.

The patch seems to be mixing the fixups for remapping these error codes
into sparc, hpux, osf/1 and other compatibility layers on the platforms

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Hi all,
I haven't tested the following patch and just wanted to get
feedback if it is "the right thing" or not.

John Marvin was clear in previous discussion we don't need
to use coherent stores but I've heard we should follow the
arch anyway so it doesn't bite us later. I find it highly
unlikely but see no harm in "doing it right".

The second bit is if adding "memory" reference in the ldcw
and _raw_spin_unlock() could replace the mb() instructions
which James Bottomley added to prevent gcc from re-ordering
instructions outside the critical section.

opinions?

thanks,
grant


Index: include/asm-parisc/spinlock.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/spinlock.h,v
retrieving revision 1.6
diff -u -p -r1.6 spinlock.h
--- include/asm-parisc/spinlock.h	15 Aug 2004 14:17:39 -0000	1.6
+++ include/asm-parisc/spinlock.h	5 Sep 2004 00:58:42 -0000
@@ -29,20 +29,26 @@ static inline void _raw_spin_lock(spinlo
 {
 	volatile unsigned int *a;
 
-	mb();
 	a = __ldcw_align(x);
 	while (__ldcw(a) == 0)
 		while (*a == 0);
-	mb();
 }
 
 static inline void _raw_spin_unlock(spinlock_t *x)
 {
 	volatile unsigned int *a;
-	mb();
+	register unsigned tmp=1;
+
 	a = __ldcw_align(x);
-	*a = 1;
-	mb();
+	/* use a coherent store. PA1.1 is always strongly ordered.
+	 * Even though no PA2.0 implementation is weakly ordered,
+	 * jda would prefer we use coherent stores (",ma" with zero offset
+	 * is the same thing but PA1.1 compatible).
+	 * Key here is "memory" - prevent gcc from re-ordering memory
+	 * accesses below releasing the lock.
+	 */
+	__asm__ __volatile__ ("stw,ma %1,0(%0)"
+			: : "r" (a), "r" (tmp) : "memory");
 }
 
 static inline int _raw_spin_trylock(spinlock_t *x)
Index: include/asm-parisc/system.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/system.h,v
retrieving revision 1.7
diff -u -p -r1.7 system.h
--- include/asm-parisc/system.h	18 Aug 2004 20:21:41 -0000	1.7
+++ include/asm-parisc/system.h	5 Sep 2004 00:58:42 -0000
@@ -141,7 +141,7 @@ static inline void set_eiem(unsigned lon
 /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
 #define __ldcw(a) ({ \
 	unsigned __ret; \
-	__asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a)); \
+	__asm__ __volatile__("ldcw 0(%1),%0" : "=r" (__ret) : "r" (a) : "memory"); \
 	__ret; \
 })
 

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On Sat, 2004-09-04 at 21:38, Grant Grundler wrote:
> I haven't tested the following patch and just wanted to get
> feedback if it is "the right thing" or not.

It should work, but I don't think it's the right thing to do.

__ldcw already insists on operating on volatile data, which is the
correct thing to do.  Adding a memory barrier is probably harmless, but
it crimps any optimisations gcc might like to try with that function
(not that there really are any with such a simple loop).  Indeed, we
could even remove the __volatile__ from the asm.

I think the best implementation is probably

barrier();
a = __ldcw_align(x);
while (__ldcw(a) == 0)
	while(*a == 0)
		;
mb();

Which makes it totally clear what barriers we need where in the spinlock
(the first being simply a compiler ordering barrier and the second
actually a processor memory barrier).

James


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> I think the best implementation is probably
> 
> barrier();
> a = __ldcw_align(x);

I don't understand why you put the barrier before the __ldcw_align
operation.  The alignment operation is non-critical and could be done
much earlier if that's desireable from a scheduling standpoint.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, 2004-09-05 at 02:27, John David Anglin wrote:
> > I think the best implementation is probably
> > 
> > barrier();
> > a = __ldcw_align(x);
> 
> I don't understand why you put the barrier before the __ldcw_align
> operation.  The alignment operation is non-critical and could be done
> much earlier if that's desireable from a scheduling standpoint.

Actually, you're right.  I think all we need is the mb() after the
spin_lock code and another mb before the spin_unlock code.  How the
taking or releasing of the lock is optimised by gcc should be irrelevant
as long as it's locked when we cross the barrier.

James


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On Sun, Sep 05, 2004 at 10:36:43AM -0400, James Bottomley wrote:
> On Sun, 2004-09-05 at 02:27, John David Anglin wrote:
> Actually, you're right.  I think all we need is the mb() after the
> spin_lock code and another mb before the spin_unlock code.  How the
> taking or releasing of the lock is optimised by gcc should be irrelevant
> as long as it's locked when we cross the barrier.

Actaully, I don't think it's irrelevant.  If a lock is contended for,
re-ordering by gcc could excerbate the problem by adding additional
instructions (good for the instruction pipeline) to the "critical
section" (the period we actually hold the lock).

I know, lock contention is bad and it should never happen.
Reality is some workload will contend for a lock. I want to
have some confidence gcc is not making it any worse.
This is why I'm asking about use of "memory" in the actual
asm instruction that either acquire or release the lock
instead of using mb().

thanks,
grant

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Subject: Re: [parisc-linux] coherent ops and mb() revisited
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> Actaully, I don't think it's irrelevant.  If a lock is contended for,
> re-ordering by gcc could excerbate the problem by adding additional
> instructions (good for the instruction pipeline) to the "critical
> section" (the period we actually hold the lock).
> 
> I know, lock contention is bad and it should never happen.
> Reality is some workload will contend for a lock. I want to
> have some confidence gcc is not making it any worse.
> This is why I'm asking about use of "memory" in the actual
> asm instruction that either acquire or release the lock
> instead of using mb().

I don't have any particular insight here beyond what's in the manual:

If your assembler instructions access memory in an unpredictable
fashion, add @samp{memory} to the list of clobbered registers.  This
will cause GCC to not keep memory values cached in registers across the
assembler instruction and not optimize stores or loads to that memory.
You will also want to add the @code{volatile} keyword if the memory
affected is not listed in the inputs or outputs of the @code{asm}, as
the @samp{memory} clobber does not count as a side-effect of the
@code{asm}.  If you know how large the accessed memory is, you can add
it as input or output but if this is not known, you should add
@samp{memory}.  As an example, if you access ten bytes of a string, you
can use a memory input like:

@example
@{"m"( (@{ struct @{ char x[10]; @} *p = (void *)ptr ; *p; @}) )@}.
@end example

Note that in the following example the memory input is necessary,
otherwise GCC might optimize the store to @code{x} away:
@example
int foo ()
@{
  int x = 42;
  int *y = &x;
  int result;
  asm ("magic stuff accessing an 'int' pointed to by '%1'"
       "=&d" (r) : "a" (y), "m" (*y));
  return result;     
@}
@end example

@noindent
If you write an @code{asm} instruction with no outputs, GCC will know
the instruction has side-effects and will not delete the instruction or
move it outside of loops.

The @code{volatile} keyword indicates that the instruction has
important side-effects.  GCC will not delete a volatile @code{asm} if
it is reachable.  (The instruction can still be deleted if GCC can
prove that control-flow will never reach the location of the
instruction.)  In addition, GCC will not reschedule instructions
across a volatile @code{asm} instruction.  For example:

@smallexample
*(volatile int *)addr = foo;
asm volatile ("eieio" : : );
@end smallexample

@noindent
Assume @code{addr} contains the address of a memory mapped device
register.  The PowerPC @code{eieio} instruction (Enforce In-order
Execution of I/O) tells the CPU to make sure that the store to that
device register happens before it issues any other I/O@.

Note that even a volatile @code{asm} instruction can be moved in ways
that appear insignificant to the compiler, such as across jump
instructions.  You can't expect a sequence of volatile @code{asm}
instructions to remain perfectly consecutive.  If you want consecutive
output, use a single @code{asm}.  Also, GCC will perform some
optimizations across a volatile @code{asm} instruction; GCC does not
``forget everything'' when it encounters a volatile @code{asm}
instruction the way some other compilers do.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Mon, 2004-09-06 at 00:19, Grant Grundler wrote:
> Actaully, I don't think it's irrelevant.  If a lock is contended for,
> re-ordering by gcc could excerbate the problem by adding additional
> instructions (good for the instruction pipeline) to the "critical
> section" (the period we actually hold the lock).

But that's what placing the mb() after the spinlock code does: confines
the critical section and prevents gcc reordering around it.

> I know, lock contention is bad and it should never happen.
> Reality is some workload will contend for a lock. I want to
> have some confidence gcc is not making it any worse.
> This is why I'm asking about use of "memory" in the actual
> asm instruction that either acquire or release the lock
> instead of using mb().

You probably get slightly more confinement by using mb() instead of the
"memory" clobber in __ldcw().  But really it's insignificant.  What
appeals to me is that the barrier in the spinlocks is explicit.  If the
spinlocks were fully asm coded, like for example x86, then adding a
"memory" clobber would make sense, but they're not, they're coded in C
with a little asm help.

James


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On Mon, Sep 06, 2004 at 10:15:29AM -0400, James Bottomley wrote:
> On Mon, 2004-09-06 at 00:19, Grant Grundler wrote:
> > Actaully, I don't think it's irrelevant.  If a lock is contended for,
> > re-ordering by gcc could excerbate the problem by adding additional
> > instructions (good for the instruction pipeline) to the "critical
> > section" (the period we actually hold the lock).
> 
> But that's what placing the mb() after the spinlock code does: confines
> the critical section and prevents gcc reordering around it.

Maybe I'm just confused again. I was thinking gcc could move instructions
between the asm("ldcw") and mb(). And the same thing between
mb() and "lock = 1".

In other words, I'm worried about the "distance" bewteen lock/unlock
ops is greater than the "distance" between two mb() that contain
the critical section of code.

> > This is why I'm asking about use of "memory" in the actual
> > asm instruction that either acquire or release the lock
> > instead of using mb().
> 
> You probably get slightly more confinement by using mb() instead of the
> "memory" clobber in __ldcw().

Erm, how?
Our mb() definition uses asm(:::"memory").
Is that different from using "memory" in the actual bit of assembly?

I just noticed set_eiem(), mtsp() and IRQ support in our system.h
do exactly what I proposed.

> What appeals to me is that the barrier in the spinlocks is explicit.

Yes, me tool.
But I'm suggesting those are superfluous when using "memory" in
the core asm() lock operations.

thanks,
grant
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On Tue, 2004-09-07 at 11:17, Grant Grundler wrote:
> Maybe I'm just confused again. I was thinking gcc could move instructions
> between the asm("ldcw") and mb(). And the same thing between
> mb() and "lock = 1".

It can, in a restricted fashion (the asm volatile ensures this
restriction).  But that's OK.  What we want is that when we complete the
spin_lock code, the spin is locked and memory clobbered.  That's why the
only necessary mb() is at the end.

> In other words, I'm worried about the "distance" bewteen lock/unlock
> ops is greater than the "distance" between two mb() that contain
> the critical section of code.

Well, the point about using an optimising compiler is that you're
supposed to give it the information necessary to do its job.  In this
case, the correct information is that a is volatile.  And further, after
it's finished the spin lock code we prevent no reordering leaks and
clobber memory.

> > You probably get slightly more confinement by using mb() instead of the
> > "memory" clobber in __ldcw().
> 
> Erm, how?
> Our mb() definition uses asm(:::"memory").
> Is that different from using "memory" in the actual bit of assembly?

Because in your implementation you have the barrier in the middle of a
loop; that means it's crossed many times in the contended case.  In mine
it's only crossed once.

James


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On Tue, Sep 07, 2004 at 11:30:17AM -0400, James Bottomley wrote:
> > Maybe I'm just confused again. I was thinking gcc could move instructions
> > between the asm("ldcw") and mb(). And the same thing between
> > mb() and "lock = 1".
> 
> It can, in a restricted fashion (the asm volatile ensures this
> restriction).  But that's OK.  What we want is that when we complete the
> spin_lock code, the spin is locked and memory clobbered.  That's why the
> only necessary mb() is at the end.

yes - I understand that part and agree the current code is correct.

> > In other words, I'm worried about the "distance" bewteen lock/unlock
> > ops is greater than the "distance" between two mb() that contain
> > the critical section of code.
> 
> Well, the point about using an optimising compiler is that you're
> supposed to give it the information necessary to do its job.  In this
> case, the correct information is that a is volatile. 

Yeah - there is a tradeoff between optimizing the pipeline between
cases where the lock is contended and where it is not. The compiler
does not have that info unless it could consume Profile info.
(ie "Profile Based Optimization").
I was thinking we should favor the contended case to make it
less painful. I've changed my mind and will not push this patch.

> And further, after
> it's finished the spin lock code we prevent no reordering leaks and
> clobber memory.

Yes - no argument about correctness of current code.

> > Erm, how?
> > Our mb() definition uses asm(:::"memory").
> > Is that different from using "memory" in the actual bit of assembly?
> 
> Because in your implementation you have the barrier in the middle of a
> loop; that means it's crossed many times in the contended case.  In mine
> it's only crossed once.

But the _ldcw() is part of a tight "while" loop.
What's the penalty for "crossing" the barrier?
I don't see one.

BTW, do you think we should use coherent loads/stores for locks?
That's the other aspect of the patch that I think jda would like
to see incorporated.

thanks,
grant
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On Wed, 2004-09-08 at 12:52, Grant Grundler wrote:
> Yeah - there is a tradeoff between optimizing the pipeline between
> cases where the lock is contended and where it is not. The compiler
> does not have that info unless it could consume Profile info.
> (ie "Profile Based Optimization").
> I was thinking we should favor the contended case to make it
> less painful. I've changed my mind and will not push this patch.

Erm, no, optimisation of the pipeline is something different again.  If
we want to hint to the compiler that the lock will be uncontended, then
our code should read:

        while (unlikely(__ldcw(a) == 0))
                while (likely(*a == 0));


> But the _ldcw() is part of a tight "while" loop.
> What's the penalty for "crossing" the barrier?
> I don't see one.

In this case, probably not much ... it would forbid clever optimisations
of the while loops, but I'm sure the compiler isn't actually optimising
them very much.  However, the *principle* is that you want your barriers
where they're effective but do the least damage to the compiler's
ability to optimise.

> BTW, do you think we should use coherent loads/stores for locks?
> That's the other aspect of the patch that I think jda would like
> to see incorporated.

I'm not really sure what the coherent hint actually does.

James


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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] coherent ops and mb() revisited
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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To: James Bottomley <James.Bottomley@SteelEye.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:24914

On Wed, Sep 08, 2004 at 01:11:12PM -0400, James Bottomley wrote:
> > does not have that info unless it could consume Profile info.
> > (ie "Profile Based Optimization").
> > I was thinking we should favor the contended case to make it
> > less painful. I've changed my mind and will not push this patch.
> 
> Erm, no, optimisation of the pipeline is something different again.  If
> we want to hint to the compiler that the lock will be uncontended, then
> our code should read:
> 
>         while (unlikely(__ldcw(a) == 0))
>                 while (likely(*a == 0));

This is general and applies to all uses of locks.
PBO would determine which is the common path at each usage.
But hints are right most of the time - included in the new patch below.

> > But the _ldcw() is part of a tight "while" loop.
> > What's the penalty for "crossing" the barrier?
> > I don't see one.
> 
> In this case, probably not much ... it would forbid clever optimisations
> of the while loops, but I'm sure the compiler isn't actually optimising
> them very much.  However, the *principle* is that you want your barriers
> where they're effective but do the least damage to the compiler's
> ability to optimise.

ok. That makes sense. I just didn't want an overly clever compiler
doing optimizations which are good for the pipeline but bad for
the algorithm.

> > BTW, do you think we should use coherent loads/stores for locks?
> > That's the other aspect of the patch that I think jda would like
> > to see incorporated.
> 
> I'm not really sure what the coherent hint actually does.

coherent hint is an architecturally (PA 2.0) defined mechanism to
enforce ordering of memory accesses - ie makes memory writes
visible to other CPUs in order. This assumes PA2.0 CPU implements
weakly ordered memory (which is not the case and I'll continue
to assert is unlikely to ever happen). But I'm happy to include
this if people think it's the "right thing".

The patch below:
o removes unneeded mb()
o adds likely/unlikely to spinlock loop as suggest by James Bottomley
o adds coherent hints to unlock "store" instruction as suggested
  by John David Anglin.

(o and drops the "memory" asm directives from the previous version)

thanks,
grant


Index: include/asm-parisc/spinlock.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/spinlock.h,v
retrieving revision 1.6
diff -u -p -r1.6 spinlock.h
--- include/asm-parisc/spinlock.h	15 Aug 2004 14:17:39 -0000	1.6
+++ include/asm-parisc/spinlock.h	10 Sep 2004 15:56:25 -0000
@@ -2,6 +2,7 @@
 #define __ASM_SPINLOCK_H
 
 #include <asm/system.h>
+#include <linux/compiler.h>	/* for likely/unlikely ops */
 
 /* Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
  * since it only has load-and-zero. Moreover, at least on some PA processors,
@@ -29,20 +30,28 @@ static inline void _raw_spin_lock(spinlo
 {
 	volatile unsigned int *a;
 
-	mb();
 	a = __ldcw_align(x);
-	while (__ldcw(a) == 0)
-		while (*a == 0);
+	while (unlikely(__ldcw(a) == 0))
+		while (likely(*a == 0));
 	mb();
 }
 
 static inline void _raw_spin_unlock(spinlock_t *x)
 {
 	volatile unsigned int *a;
+
 	mb();
 	a = __ldcw_align(x);
-	*a = 1;
-	mb();
+
+	/* use a coherent store. PA1.1 is always strongly ordered.
+	* The idea here is stores to locks will enforce memory ordering
+	* should any PA20 chip ever implement weakly ordered memory.
+	* To date, no PA2.0 implementation is weakly ordered.
+	* jda would prefer we use coherent stores (",ma" with zero offset
+	* is the same thing but PA1.1 compatible).
+	*/
+	__asm__ __volatile__ ("stw,ma %1,0(%0)"
+			: : "r" (a), "r" (1) );
 }
 
 static inline int _raw_spin_trylock(spinlock_t *x)
@@ -50,7 +59,6 @@ static inline int _raw_spin_trylock(spin
 	volatile unsigned int *a;
 	int ret;
 
-	mb();
 	a = __ldcw_align(x);
         ret = __ldcw(a) != 0;
 	mb();
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From: Grant Grundler <grundler@parisc-linux.org>
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Subject: Re: [parisc-linux] The new iomap interface
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On Fri, Sep 17, 2004 at 01:46:12PM +0100, Matthew Wilcox wrote:
> Shortly after 2.6.9-rc2, Linus introduced a new way of accessing IO devices
> called iomap.  This gives us the opportunity to overhaul our device IO
> accessors.  Let's go over how this works:
> 
> There are various ways to get hold of an iomem cookie, such as calling
> pci_iomap() or ioport_map().  One then passes this cookie to a different
> set of functions ioread8(), ioread16(), ioread32(), iowrite8(),
> iowrite16() and iowrite32().  When one is done with it, one calls something
> like pci_iounmap() or ioport_unmap().

Interesting. I'm not sure this new scheme provides any special hooks
that we can't already do today.
Did Linus write why he wants iomap? Have a URL handy?

I don't like IO Port space being mixed with MMIO space.
But I guess that's the point of Linus' new scheme - drivers can
use either one with the same accessors. He's pushing the
indirection from the drivers to the platform support.

The problem with this scheme are the semantics are slightly
different for IO Port vs MMIO. IO Port space is "non-Postable"
for writes and MMIO space is "Postable". The former must stall
the CPU. Because of this, drivers can be written for MMIO space
and then seamlessly switch to IO Port space.
But the converse is usually not true.

I'm only aware of a few drivers that attempt to support both
address spaces in one binary. A few make it a compile time option.

iomap would make it easier to completely drop IO port space support
in the future when no driver in a given system needs it.
But I didn't think it was hard to do currently.

> There are several cases we have to be able to handle.  Obviously,
> we have to handle PCI/EISA/ISA io memory and PCI/EISA/ISA io ports.
> It'd also be good to handle native PA io memory.  I'd like to resurrect
> the USE_HPPA_IOREMAP code that Helge worked on at one point (it's really
> time to do away with the rsm/mtsm around byte loads/stores).

Yes - I forgot readb/readw don't have PARISC instructions to
do "absolute" accesses.

Moving to virtually mapped address would be a win for byte/short
accesses. But I don't consider those performance path either.
Access to any type of IO is 20-100X slower than rsm/mtsm.

> So here's the hardware constraints.  All the EISA and PCI adapters map
> IO memory space into PA memory space, but we have to do byte swapping.

[ insert paragraph break - discuss MMIO and IO Port accessors seperately
since they have different mechanisms and semantics ]

> The EISA adapter maps IO port space into PA memory space, but does so in
> such a convoluted way that we may not be able to fulfill a request for
> a contiguous chunk of ports.  The Dino PCI adapter requires reads and writes
> to control registers to access port space.  Astro-based systems have a
> dense mapping for IO ports into memory ... but sometimes require
> additional hacks to work around bugs.  PAT-based systems have a sparse
> mapping for IO ports into memory, but require an additional read to flush
> the write.

The mechanism to access IO port space varies more by chipset than
by firmware. The firmware might happen to advertise an alternate
"view" of IO Port space. And PAT PDC support falls into the
"we have to do this different for 64-bit" bucket.

> 
> Phew.  OK.  How to make that lot work?  Well .. looks to me like we want:
> 
> /*
>  * Technically, this should be 'if (VMALLOC_START < addr < VMALLOC_END),
>  * but that's slow and we know it'll be within the first 2GB.
>  */
> #define INDIRECT_ADDR(addr)     (((unsigned long)(addr) & 0x80000000) != 0)

AFAIK, all machines capable of running 32-bit kernel, use *ONLY* the
top 256MB (F-space) of address space for IO.
I think the 32-bit implementation could be tightened up to be 

#define INDIRECT_ADDR(addr)     (((unsigned long)(addr) & 0xf0000000UL) != 0xf0000000UL)

The 64-bit kernel implementation is going to be uglier.
It will have to support 2GB LMMIO and GMMIO as well.
(GMMIO are IO addresses > 4GB and live above 4GB CPU address as well).

> static inline int ioread16(void __iomem *addr)
> {
>         if (unlikely(INDIRECT_ADDR(addr)))
>                 return __ioread16(addr);
>         return le16_to_cpup((u16 *)addr);
> }
> 
> This should be a test, a non-executed branch and a load in the direct-load
> case.

plus 3 instructions for the swap (for 32 bit).

> Then __ioread16() can look something like ... 
> 
> struct iomem_ops {
>         int (*read8)(void __iomem *addr);
>         int (*read16)(void __iomem *addr);
>         int (*read32)(void __iomem *addr);
>         void (*write8)(u8, void __iomem *addr);
>         void (*write16)(u16, void __iomem *addr);
>         void (*write32)(u32, void __iomem *addr);
> };
> 
> struct iomem_ops *iomem_ops[8]; 
> 
> #define ADDR_TO_REGION(addr)    (((unsigned long)addr >> 28) & 7)
> 
> int __ioread16(void __iomem *addr)
> {
>         return iomem_ops[ADDR_TO_REGION(addr)]->read16(addr);
> }
> 
> That gives us 256MB of io space in each handler, and 8 possible handlers.
> Anything that can be directly mapped like PCI io memory will be, and therefore
> much quicker than the current io port ops mess.

Not really. Besides, difference between the proposed scheme and the
existing scheme will not be measurable.

>   We'll need handlers for:
> 
> 0 -- ISA/EISA port space that isn't contiguous
> 1 -- PCI port space for Dino
> 2 -- PCI port space for Astro w/Elroy < 2.2
> 3 -- PCI port space for PAT PDC
> 4 -- Non-byteswapped GSC IO memory
> 7 -- Legacy drivers that are passing an old-style readX() cookie to the
>      new-style ioreadX() functions.  Doh.

So basically you want to alias all of 32-bit address into 512MB chunks.
Each "region" maps to a particular accessor.

> Note that these interfaces give us the opportunity to do much more work
> at IO map time, and much less mucking around at IO access time.  The
> design here is clearly 32-bit centric, but the macros can be ifdeffed to
> work differently on 64-bit.
> 
> Comments, suggestions, alternative designs?

Overall, I think it can be made to work.

But I'm not convinced it's worth turning the world upside down for.
If you think it's significantly better, go for it.

Personally, I think the work you, jejb, and tausq are doing for
cache/TLB flushing means alot more in terms of performance.

grant
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From: Matthew Wilcox <willy@debian.org>
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Subject: Re: [parisc-linux] The new iomap interface
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On Fri, Sep 17, 2004 at 10:24:30AM -0600, Grant Grundler wrote:
> Interesting. I'm not sure this new scheme provides any special hooks
> that we can't already do today.
> Did Linus write why he wants iomap? Have a URL handy?

Not really, it just kind of appeared.  There's an explanatory post
rather after the fact from Linus here:
http://www.ussg.iu.edu/hypermail/linux/kernel/0409.1/2561.html

> The problem with this scheme are the semantics are slightly
> different for IO Port vs MMIO. IO Port space is "non-Postable"
> for writes and MMIO space is "Postable". The former must stall
> the CPU. Because of this, drivers can be written for MMIO space
> and then seamlessly switch to IO Port space.
> But the converse is usually not true.

There's still quibbling over the semantics one is entitled to assume
with the new ioreadX() functions.  It's possible they may end up being
closer to readX_relaxed() than readX(), but they're certainly not entitled
to assume port semantics.

> The mechanism to access IO port space varies more by chipset than
> by firmware. The firmware might happen to advertise an alternate
> "view" of IO Port space. And PAT PDC support falls into the
> "we have to do this different for 64-bit" bucket.

I'm using your terminology, dude :-P  See drivers/parisc/lba_pci.c
We have "astro" and "pat" port io accessors.

> > Phew.  OK.  How to make that lot work?  Well .. looks to me like we want:
> > 
> > /*
> >  * Technically, this should be 'if (VMALLOC_START < addr < VMALLOC_END),
> >  * but that's slow and we know it'll be within the first 2GB.
> >  */
> > #define INDIRECT_ADDR(addr)     (((unsigned long)(addr) & 0x80000000) != 0)
> 
> AFAIK, all machines capable of running 32-bit kernel, use *ONLY* the
> top 256MB (F-space) of address space for IO.
> I think the 32-bit implementation could be tightened up to be 
> 
> #define INDIRECT_ADDR(addr)     (((unsigned long)(addr) & 0xf0000000UL) != 0xf0000000UL)

Oops, domain violation ;-)
You're thinking about *physical* pointers, not ones returned from ioremap().
ioremap() returns a pointer that is inside the VMALLOC range.  I tried to
make that clear in the comment above.

> plus 3 instructions for the swap (for 32 bit).

Sure, but that's the same as today.

> So basically you want to alias all of 32-bit address into 512MB chunks.
> Each "region" maps to a particular accessor.

Basically, we have a new address space.  In addition to the physical
(cat /proc/iomem), the virtual kernel (erm, is this documented anywhere?)
and the virtual user address spaces, we now have an iomem address space.
The proposed layout is:

00000000-7fffffff virtual mapped IO
80000000-8fffffff ISA/EISA port space
90000000-9fffffff Dino port space
a0000000-afffffff Astro port space
b0000000-bfffffff PAT port space
c0000000-cfffffff non-swapped memory IO
f0000000-ffffffff legacy IO pointers

> But I'm not convinced it's worth turning the world upside down for.
> If you think it's significantly better, go for it.

We have to support the new iomap interface _somehow_.  I just saw this as
an opportunity to overhaul our existing mmio interface and a chance to
speed up some of the port ops.

> Personally, I think the work you, jejb, and tausq are doing for
> cache/TLB flushing means alot more in terms of performance.

You give me too much credit -- I don't work on that at all ;-)

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
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Subject: [parisc-linux] The new iomap interface
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Shortly after 2.6.9-rc2, Linus introduced a new way of accessing IO devices
called iomap.  This gives us the opportunity to overhaul our device IO
accessors.  Let's go over how this works:

There are various ways to get hold of an iomem cookie, such as calling
pci_iomap() or ioport_map().  One then passes this cookie to a different
set of functions ioread8(), ioread16(), ioread32(), iowrite8(),
iowrite16() and iowrite32().  When one is done with it, one calls something
like pci_iounmap() or ioport_unmap().

There are several cases we have to be able to handle.  Obviously,
we have to handle PCI/EISA/ISA io memory and PCI/EISA/ISA io ports.
It'd also be good to handle native PA io memory.  I'd like to resurrect
the USE_HPPA_IOREMAP code that Helge worked on at one point (it's really
time to do away with the rsm/mtsm around byte loads/stores).

So here's the hardware constraints.  All the EISA and PCI adapters map
IO memory space into PA memory space, but we have to do byte swapping.
The EISA adapter maps IO port space into PA memory space, but does so in
such a convoluted way that we may not be able to fulfill a request for
a contiguous chunk of ports.  The Dino PCI adapter requires reads and writes
to control registers to access port space.  Astro-based systems have a
dense mapping for IO ports into memory ... but sometimes require
additional hacks to work around bugs.  PAT-based systems have a sparse
mapping for IO ports into memory, but require an additional read to flush
the write.

Phew.  OK.  How to make that lot work?  Well .. looks to me like we want:

/*
 * Technically, this should be 'if (VMALLOC_START < addr < VMALLOC_END),
 * but that's slow and we know it'll be within the first 2GB.
 */
#define INDIRECT_ADDR(addr)     (((unsigned long)(addr) & 0x80000000) != 0)

static inline int ioread16(void __iomem *addr)
{
        if (unlikely(INDIRECT_ADDR(addr)))
                return __ioread16(addr);
        return le16_to_cpup((u16 *)addr);
}

This should be a test, a non-executed branch and a load in the direct-load
case.

Then __ioread16() can look something like ... 

struct iomem_ops {
        int (*read8)(void __iomem *addr);
        int (*read16)(void __iomem *addr);
        int (*read32)(void __iomem *addr);
        void (*write8)(u8, void __iomem *addr);
        void (*write16)(u16, void __iomem *addr);
        void (*write32)(u32, void __iomem *addr);
};

struct iomem_ops *iomem_ops[8]; 

#define ADDR_TO_REGION(addr)    (((unsigned long)addr >> 28) & 7)

int __ioread16(void __iomem *addr)
{
        return iomem_ops[ADDR_TO_REGION(addr)]->read16(addr);
}

That gives us 256MB of io space in each handler, and 8 possible handlers.
Anything that can be directly mapped like PCI io memory will be, and therefore
much quicker than the current io port ops mess.  We'll need handlers for:

0 -- ISA/EISA port space that isn't contiguous
1 -- PCI port space for Dino
2 -- PCI port space for Astro w/Elroy < 2.2
3 -- PCI port space for PAT PDC
4 -- Non-byteswapped GSC IO memory
7 -- Legacy drivers that are passing an old-style readX() cookie to the
     new-style ioreadX() functions.  Doh.

Note that these interfaces give us the opportunity to do much more work
at IO map time, and much less mucking around at IO access time.  The
design here is clearly 32-bit centric, but the macros can be ifdeffed to
work differently on 64-bit.

Comments, suggestions, alternative designs?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
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On Fri, Sep 17, 2004 at 05:50:31PM +0100, Matthew Wilcox wrote:
> On Fri, Sep 17, 2004 at 10:24:30AM -0600, Grant Grundler wrote:
> > Interesting. I'm not sure this new scheme provides any special hooks
> > that we can't already do today.
> > Did Linus write why he wants iomap? Have a URL handy?
> 
> Not really, it just kind of appeared.  There's an explanatory post
> rather after the fact from Linus here:
> http://www.ussg.iu.edu/hypermail/linux/kernel/0409.1/2561.html

Ah ok. Type checking. Excellent reason.
My guess was close in that devices drivers which access both IO Port
and MMIO space in a single binary are the root "problem" this fixes.

> There's still quibbling over the semantics one is entitled to assume
> with the new ioreadX() functions.  It's possible they may end up being
> closer to readX_relaxed() than readX(), but they're certainly not entitled
> to assume port semantics.

Well, I hope not too close to readX_relaxed() since that really violates
existing PCI ordering rules. As noted in previous email jejb cc'd me on,
AFAIK, readX_relaxed() is only useful on SGI Altix boxes.

> I'm using your terminology, dude :-P  See drivers/parisc/lba_pci.c
> We have "astro" and "pat" port io accessors.

heh - PAT PDC is only enabled for 64-bit kernels.
So the 32/64 bit split still works best.

> > AFAIK, all machines capable of running 32-bit kernel, use *ONLY* the
> > top 256MB (F-space) of address space for IO.
> > I think the 32-bit implementation could be tightened up to be 
> > 
> > #define INDIRECT_ADDR(addr)     (((unsigned long)(addr) & 0xf0000000UL) != 0xf0000000UL)
> 
> Oops, domain violation ;-)
> You're thinking about *physical* pointers, not ones returned from ioremap().

Yes - sorry

> ioremap() returns a pointer that is inside the VMALLOC range.  I tried to
> make that clear in the comment above.

You did - I just got confused thinking about 32 vs 64bit.

> > So basically you want to alias all of 32-bit address into 512MB chunks.
> > Each "region" maps to a particular accessor.
> 
> Basically, we have a new address space.  In addition to the physical
> (cat /proc/iomem), the virtual kernel (erm, is this documented anywhere?)
> and the virtual user address spaces, we now have an iomem address space.
> The proposed layout is:
> 
> 00000000-7fffffff virtual mapped IO
> 80000000-8fffffff ISA/EISA port space
> 90000000-9fffffff Dino port space
> a0000000-afffffff Astro port space
> b0000000-bfffffff PAT port space
> c0000000-cfffffff non-swapped memory IO
> f0000000-ffffffff legacy IO pointers

I see. This looks good.

> > But I'm not convinced it's worth turning the world upside down for.
> > If you think it's significantly better, go for it.
> 
> We have to support the new iomap interface _somehow_.  I just saw this as
> an opportunity to overhaul our existing mmio interface and a chance to
> speed up some of the port ops.

Yeah, true. And having the read Linus' posting (URL you gave) it
makes sense to add better type checking.


> > Personally, I think the work you, jejb, and tausq are doing for
> > cache/TLB flushing means alot more in terms of performance.
> 
> You give me too much credit -- I don't work on that at all ;-)

Sorry  :^)
I know jejb did 98% of the work, but I though you and tausq
advised/reviewed it as well.

thanks,
grant
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On Sun, Sep 19, 2004 at 11:22:26AM +0200, Christoph Hellwig wrote:
> On Fri, Sep 17, 2004 at 05:00:39PM +0100, Alan Cox wrote:
> > On Gwe, 2004-09-17 at 17:50, Matthew Wilcox wrote:
> > > On Fri, Sep 17, 2004 at 10:24:30AM -0600, Grant Grundler wrote:
> > > > Interesting. I'm not sure this new scheme provides any special hooks
> > > > that we can't already do today.
> > > > Did Linus write why he wants iomap? Have a URL handy?
> > 
> > Discussion on linux-arch originally I think
> 
> Does anyone have a pointer to the list archives for that linux-arch
> thing?

I believe there are none.  BTW, the iomap discussion didn't happen
on linux-arch.  Linus posted saying "hey, I've added __iomem markers
for sparse's benefit; isn't this cool?" and there was some discussion
around that, but nothing about the iomap() interface.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Anyone else using debootstrap recently to get a sid chroot?

carlos@churchill:~/src$ mkdir sid_chroot
carlos@churchill:~/src$ sudo debootstrap sid sid_chroot/
I: Retrieving debootstrap.invalid_dists_sid_Release
I: Validating debootstrap.invalid_dists_sid_Release
I: Retrieving debootstrap.invalid_dists_sid_main_binary-hppa_Packages
I: Validating debootstrap.invalid_dists_sid_main_binary-hppa_Packages
I: Checking adduser...
I: Checking apt...
...
I: Retrieving fdutils
I: Validating fdutils
I: Retrieving findutils
I: Validating findutils
E: Couldn't download gcc-3.0-base
carlos@churchill:~/src$ 

carlos@churchill:~/src$ apt-cache search gcc-3.0-base
gcc-3.0-base - The GNU Compiler Collection (base package)

It's there.

Thoughts from the guru's?

I need a chroot for my experimental glibc packages for jda :)
(we have a missing "memory" clobber for syscalls!)

c.


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Subject: [parisc-linux] GNOME stopped working after 2.6.9-rc2-pa4
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I'm digging through changesets now to figure out which one caused it.
Just wanted to let everyone know.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
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Hello Grant, Bartlomiej and *,

I test this patch:
--- arch/parisc/kernel/pci.c.Orig	2004-09-22 09:47:02.000000000 +0200
+++ arch/parisc/kernel/pci.c	2004-09-22 11:26:02.104187784 +0200
@@ -146,6 +146,9 @@
 	return str;
 }
 
+/* Used in drivers/pci/quirks.c */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, super=
io_fixup_pci);
+
 /*
  * Called by pci_set_master() - a driver interface.
  *
--- drivers/parisc/superio.c.Orig	2004-09-22 11:17:53.759427472 +0200
+++ drivers/parisc/superio.c	2004-09-22 11:27:32.856391352 +0200
@@ -484,7 +484,6 @@
 	pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
 	printk("PCI: Enabled native mode for NS87415 (pif=3D0x%x)\n", prog);
 }
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, super=
io_fixup_pci);
 
 /* Because of a defect in Super I/O, all reads of the PCI DMA status 
  * registers, IDE status register and the IDE select register need to be=


=3D=3D=3D=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D=3D=3D=3D

That fix the NS87415 pb on my c2k model :)
Can somebody check it with some c3k model?

And if Ok for all, can somebody ci for me?

Tia,
    Joel

PS: here attached the diff in case of bad wrapping
> -- Original Message --
> From: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
> To: Grant Grundler <grundler@parisc-linux.org>
> Date: Fri, 17 Sep 2004 02:43:06 +0200
> Cc: linux-ide@vger.kernel.org, parisc-linux@lists.parisc-linux.org
> Subject: [parisc-linux] Re: NS87415 on C3K broken
> 
> 
> On Friday 17 September 2004 01:25, Grant Grundler wrote:
> > > ide_setup_pci_controller()
> > > 	-> ide_pci_enable()
> > > 		-> pci_enable_device()
> > > 
> > > and ide_setup_pci_controller() is called at the beginning
> > > of ide_setup_pci_device() before ->init_chipset()
> > 
> > Yes - I tracked the pci_enabled_device back to ide_setup_pci_controll=
er().
> > But I just realized I had another brainfart: ide_setup_pci_controller=
()
> > is not ide_setup_pci_device(). I should stop coding late at night...
> 
> Heh.
> 
> > > > Anyway, ns87415 driver has more problems. The patch below adds
> > > > "init_chipset" entry point and init_chipset_ns87415() calls
> > > > pci_enable_device() and pci_set_master() before the probe.
> > > > And my C3k still HPMCs. My guess is more of the code from
> > > > init_hwif_ns87415() needs to be moved to init_chipset_ns87415().
> > > > And possible call some special suckyio init routines.
> > > > I won't be able to touch this for a few days.
> > > > Anyone else on parisc-linux ml want to take a whack at this?
> > ...
> > > Yep, also if they are to stay please move them to ns87415.c
> > > because using <linux/ide.h> outside drivers/ide is WRONG.
> > 
> > they? superio_ide_init_iops() or something else?
> 
> They.
> 
> > Willy mentioned that as a TODO item and it's on my list.
> > But I didn't plan on touching that before the HPMC is resolved
> > or the PCI resource mgt issues are resolved.
> 
> OK, thanks.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux


-------------------------------------------------------------------------=
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.
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On Wed, Sep 22, 2004 at 12:41:21PM +0200, Joel Soete wrote:
> Hello Grant, Bartlomiej and *,
>
> I test this patch:
> --- arch/parisc/kernel/pci.c.Orig	2004-09-22 09:47:02.000000000 +0200
> +++ arch/parisc/kernel/pci.c	2004-09-22 11:26:02.104187784 +0200
> @@ -146,6 +146,9 @@
>  	return str;
>  }
> 
> +/* Used in drivers/pci/quirks.c */
> +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, superio_fixup_pci);

Uhm...any clue why this works?
The same entry in drivers/parisc/superio.c should work too but it doesn't.
I'd rather fix that than just blindly moving it.

> That fix the NS87415 pb on my c2k model :)
> Can somebody check it with some c3k model?

I expect c3k also to work. I'm not going to test it.


BTW, I've prepared a patch which moves IDE knowledge
out of superio.c driver and into drivers/ide/pci/ns87415.c.
I've not submitted it yet because I haven't successfully tested it
and it still contains debug printk's.
It builds and anyone curious is welcome to look at it:
    ftp://ftp.parisc-linux.org/patches/diff-2.6.9-rc2-ns87415_suckyio_cleanup-01

Moving the DECLARE_PCI_FIXUP_HEADER() around is probably the clue
I needed to resolve this.

thanks,
grant
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On Wed, Sep 22, 2004 at 10:37:08AM -0600, Grant Grundler wrote:
> On Wed, Sep 22, 2004 at 12:41:21PM +0200, Joel Soete wrote:
> > --- arch/parisc/kernel/pci.c.Orig	2004-09-22 09:47:02.000000000 +0200
> > +++ arch/parisc/kernel/pci.c	2004-09-22 11:26:02.104187784 +0200
> > +/* Used in drivers/pci/quirks.c */
> > +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, superio_fixup_pci);
> 
> Uhm...any clue why this works?
> The same entry in drivers/parisc/superio.c should work too but it doesn't.
> I'd rather fix that than just blindly moving it.

I think I know.  The define is:

#define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook) \
        static struct pci_fixup __pci_fixup_##vendor##device##hook __attribute_u
sed__   \
        __attribute__((__section__(".pci_fixup_header"))) = { \
                vendor, device, hook };

Now, that's dealt with by include/asm-generic/vmlinux.lds.h:

#define RODATA                                                          \
[...]
        /* PCI quirks */                                                \
        .pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {        \
                VMLINUX_SYMBOL(__start_pci_fixups_header) = .;          \
                *(.pci_fixup_header)                                    \
                VMLINUX_SYMBOL(__end_pci_fixups_header) = .;            \
                VMLINUX_SYMBOL(__start_pci_fixups_final) = .;           \
                *(.pci_fixup_final)                                     \
                VMLINUX_SYMBOL(__end_pci_fixups_final) = .;             \
        }                                                               \

which links them all together.  *However* ... maybe order is important.
There's a grotty-looking:
c03f347c d __pci_fixup_PCI_ANY_IDPCI_ANY_IDquirk_ide_bases

which may need to come after our superio quirk?  I'm just testing this theory now ...

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: [parisc-linux] Re: a fix for NS87415 on C3K broken
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 Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>,
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Hello Grant,

> On Wed, Sep 22, 2004 at 12:41:21PM +0200, Joel Soete wrote:
> > Hello Grant, Bartlomiej and *,
> >
> > I test this patch:
> > --- arch/parisc/kernel/pci.c.Orig	2004-09-22 09:47:02.000000000 +0200=

> > +++ arch/parisc/kernel/pci.c	2004-09-22 11:26:02.104187784 +0200
> > @@ -146,6 +146,9 @@
> >  	return str;
> >  }
> > 
> > +/* Used in drivers/pci/quirks.c */
> > +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415,
superio_fixup_pci);
> 
> Uhm...any clue why this works?
No more clue sorry; I just notived that boot message of 2.6.8.1-pa7:
lba version TR4.0 (0x5) found at 0xfffffffffed30000
PCI: Enabled native mode for NS87415 (pif=3D0x8f)

became with 2.6.9-rc2:
lba version TR4.0 (0x5) found at 0xfffffffffed30000
PCI: Ignoring BAR0-3 of IDE controller 0000:00:0e.0
PCI: Enabled native mode for NS87415 (pif=3D0x8f)

(so PCI: Enabled native mode for NS87415 precede by a weird 'ignoring ...=

IDE controler)

I so just try to move back the pcibios_fixups initialisation at its previ=
ous
place and the message ''ignoring ... IDE controler" disapear ?)
 
> The same entry in drivers/parisc/superio.c should work too but it doesn=
't.
> I'd rather fix that than just blindly moving it.
> 
no pb

> > That fix the NS87415 pb on my c2k model :)
> > Can somebody check it with some c3k model?
> 
> I expect c3k also to work. I'm not going to test it.
> 
> 
> BTW, I've prepared a patch which moves IDE knowledge
> out of superio.c driver and into drivers/ide/pci/ns87415.c.
> I've not submitted it yet because I haven't successfully tested it
> and it still contains debug printk's.
> It builds and anyone curious is welcome to look at it:
>     ftp://ftp.parisc-linux.org/patches/diff-2.6.9-rc2-ns87415_suckyio_c=
leanup-01
> 
I will also try it :)

> Moving the DECLARE_PCI_FIXUP_HEADER() around is probably the clue
> I needed to resolve this.
> 
I am curious to find an expalnation too.

Thanks,
    Joel

-------------------------------------------------------------------------=
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Tiscali ADSL GO, 29,50 Euro/mois pendant toute une ann=E9e, profitez-en..=
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On Wed, Sep 22, 2004 at 07:21:08PM +0200, Joel Soete wrote:
> > Moving the DECLARE_PCI_FIXUP_HEADER() around is probably the clue
> > I needed to resolve this.
> >
> I am curious to find an expalnation too.

Yep, that's it.  That moves it to be the first entry on the list, and
it handles the suckyio IDE cotroller before the quirk_ide_bases does.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: [PATCH] Sort generic PCI fixups after specific ones
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The recent change that allowed PCI fixups to be declared everywhere
broke IDE on PA-RISC by making the generic IDE fixup be applied before
the PA-RISC specific one.  This patch fixes that by sorting generic fixups
after the specific ones.  It also obeys the 80-column limit and reduces
the amount of grotty macro code.

I'd like to thank Joel Soete for his work tracking down the source of
this problem.

Index: linux-2.6/drivers/pci/quirks.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/pci/quirks.c,v
retrieving revision 1.16
diff -u -p -r1.16 quirks.c
--- linux-2.6/drivers/pci/quirks.c	13 Sep 2004 15:23:21 -0000	1.16
+++ linux-2.6/drivers/pci/quirks.c	22 Sep 2004 21:38:17 -0000
@@ -543,7 +543,7 @@ static void __devinit quirk_cardbus_lega
 		return;
 	pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID,		PCI_ANY_ID,			quirk_cardbus_legacy );
+DECLARE_PCI_FIXUP_FINAL_ALL(quirk_cardbus_legacy);
 
 /*
  * Following the PCI ordering rules is optional on the AMD762. I'm not
@@ -661,7 +661,7 @@ static void __devinit quirk_ide_bases(st
        printk(KERN_INFO "PCI: Ignoring BAR%d-%d of IDE controller %s\n",
               first_bar, last_bar, pci_name(dev));
 }
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID,             PCI_ANY_ID,                     quirk_ide_bases );
+DECLARE_PCI_FIXUP_HEADER_ALL(quirk_ide_bases);
 
 /*
  *	Ensure C0 rev restreaming is off. This is normally done by
Index: linux-2.6/include/asm-generic/vmlinux.lds.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-generic/vmlinux.lds.h,v
retrieving revision 1.4
diff -u -p -r1.4 vmlinux.lds.h
--- linux-2.6/include/asm-generic/vmlinux.lds.h	13 Sep 2004 15:24:02 -0000	1.4
+++ linux-2.6/include/asm-generic/vmlinux.lds.h	22 Sep 2004 21:38:23 -0000
@@ -20,9 +20,11 @@
 	.pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start_pci_fixups_header) = .;		\
 		*(.pci_fixup_header)					\
+		*(.pci_fixup_header_all)				\
 		VMLINUX_SYMBOL(__end_pci_fixups_header) = .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_final) = .;		\
 		*(.pci_fixup_final)					\
+		*(.pci_fixup_final_all)					\
 		VMLINUX_SYMBOL(__end_pci_fixups_final) = .;		\
 	}								\
 									\
Index: linux-2.6/include/linux/pci.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/linux/pci.h,v
retrieving revision 1.18
diff -u -p -r1.18 pci.h
--- linux-2.6/include/linux/pci.h	13 Sep 2004 15:24:12 -0000	1.18
+++ linux-2.6/include/linux/pci.h	22 Sep 2004 21:38:25 -0000
@@ -1011,15 +1011,22 @@ enum pci_fixup_pass {
 };
 
 /* Anonymous variables would be nice... */
-#define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook)					\
-	static struct pci_fixup __pci_fixup_##vendor##device##hook __attribute_used__	\
-	__attribute__((__section__(".pci_fixup_header"))) = {				\
-		vendor, device, hook };
-
-#define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook)				\
-	static struct pci_fixup __pci_fixup_##vendor##device##hook __attribute_used__	\
-	__attribute__((__section__(".pci_fixup_final"))) = {				\
+#define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook)	\
+	static struct pci_fixup __pci_fixup_##name			\
+	__attribute_used__ __attribute__((__section__( #section ))) = {	\
 		vendor, device, hook };
+#define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook)			\
+	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header,			\
+			vendor##device##hook, vendor, device, hook)
+#define DECLARE_PCI_FIXUP_HEADER_ALL(hook)				\
+	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header_all,		\
+			ALL_DEVICES##hook, PCI_ANY_ID, PCI_ANY_ID, hook)
+#define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook)			\
+	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final,			\
+			vendor##device##hook, vendor, device, hook)
+#define DECLARE_PCI_FIXUP_FINAL_ALL(hook)				\
+	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final_all,			\
+			ALL_DEVICES##hook, PCI_ANY_ID, PCI_ANY_ID, hook)
 
 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev);
 

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain

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From: "Joel Soete" <soete.joel@tiscali.be>
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> -- Original Message --
> Date: Wed, 22 Sep 2004 22:43:04 +0100
> From: Matthew Wilcox <matthew@wil.cx>
> To: Linus Torvalds <torvalds@osdl.org>,
> 	Andrew Morton <akpm@zip.com.au>
> Cc: linux-pci@atrey.karlin.mff.cuni.cz, linux-kernel@vger.kernel.org,
> 	parisc-linux@parisc-linux.org
> Subject: [parisc-linux] [PATCH] Sort generic PCI fixups after specific
ones
> 
> 
> 
> The recent change that allowed PCI fixups to be declared everywhere
> broke IDE on PA-RISC by making the generic IDE fixup be applied before
> the PA-RISC specific one.  This patch fixes that by sorting generic fix=
ups
> after the specific ones.  It also obeys the 80-column limit and reduces=

> the amount of grotty macro code.
> 
> I'd like to thank Joel Soete for his work tracking down the source of
> this problem.
>
Thanks (but too much honor)

That said, I apply your patch against 2.6.9-rc2-pa7 and it boot fine :)

Thanks a lot for great job,
Joel


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From: Randolph Chung <randolph@tausq.org>
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Subject: Re: [parisc-linux] Re: a fix for NS87415 on C3K broken
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Cc: linux-ide@vger.kernel.org,
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> But when I try to use the ide-cdrom the system carsh with such oops:
> Backtrace:
>  [<000000001017e0d8>] drain_array_locked+0x98/0x148
>  [<000000001017e2c4>] cache_reap+0x13c/0x2b0
>  [<000000001015e574>] worker_thread+0x284/0x330
>  [<0000000010164714>] kthread+0x12c/0x138
>  [<000000001010647c>] ret_from_kernel_thread+0x24/0x38

maybe this will help:
http://marc.theaimsgroup.com/?l=linux-kernel&m=109529103522064&w=2

but we are seeing some of these slab errors with this build that are not
cdrom related too... :(

can you try compiling with slab debug (under kernel debugging)?

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: [parisc-linux] Re: [PATCH] Sort generic PCI fixups after specific
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Cc: Linus Torvalds <torvalds@osdl.org>,
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On Wed, Sep 22, 2004 at 10:43:04PM +0100, Matthew Wilcox wrote:
> 
> The recent change that allowed PCI fixups to be declared everywhere
> broke IDE on PA-RISC by making the generic IDE fixup be applied before
> the PA-RISC specific one.  This patch fixes that by sorting generic fixups
> after the specific ones.  It also obeys the 80-column limit and reduces
> the amount of grotty macro code.
> 
> I'd like to thank Joel Soete for his work tracking down the source of
> this problem.
> 
> Index: linux-2.6/drivers/pci/quirks.c
> ===================================================================
> RCS file: /var/cvs/linux-2.6/drivers/pci/quirks.c,v
> retrieving revision 1.16
> diff -u -p -r1.16 quirks.c
> --- linux-2.6/drivers/pci/quirks.c	13 Sep 2004 15:23:21 -0000	1.16
> +++ linux-2.6/drivers/pci/quirks.c	22 Sep 2004 21:38:17 -0000
> @@ -543,7 +543,7 @@ static void __devinit quirk_cardbus_lega
>  		return;
>  	pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
>  }
> -DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID,		PCI_ANY_ID,			quirk_cardbus_legacy );
> +DECLARE_PCI_FIXUP_FINAL_ALL(quirk_cardbus_legacy);

It looks like you are doing 2 different things here with this new macro.
Having it run last, and leting the user not type the PCI_ANY_ID macro
twice.  How about if you want to do a final final type pass, you mark it
as such, and not try to hide it in this manner.

And do we really want to call it "final final"?  What if we determine
that we need a "final final final" pass?  Can't you fix this with the
link order like was previously done?  I'd really prefer to not add
another level.

Oh, and cc:ing the pci maintainer might be nice next time :)

thanks,

greg k-h
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Cc: Linus Torvalds <torvalds@osdl.org>,
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On Thu, Sep 23, 2004 at 10:20:38AM -0700, Greg KH wrote:
> On Wed, Sep 22, 2004 at 10:43:04PM +0100, Matthew Wilcox wrote:
> > The recent change that allowed PCI fixups to be declared everywhere
> > broke IDE on PA-RISC by making the generic IDE fixup be applied before
> > the PA-RISC specific one.  This patch fixes that by sorting generic fixups
> > after the specific ones.  It also obeys the 80-column limit and reduces
> > the amount of grotty macro code.
> 
> It looks like you are doing 2 different things here with this new macro.
> Having it run last, and leting the user not type the PCI_ANY_ID macro
> twice.  How about if you want to do a final final type pass, you mark it
> as such, and not try to hide it in this manner.

Not really.  There's two types of fixup (well, four if you multiply by
the header vs later possibility).  There's the incredibly specific ("this
device from this manufacturer forgets to set something properly") and
the incredibly general ("if this is a cardbus / IDE device, then ...").
This patch simply distinguishes between the two.  Obviously the general
ones run after the specific ones -- there's specific devices that forget
to set their class code, for example.

> And do we really want to call it "final final"?  What if we determine
> that we need a "final final final" pass?  Can't you fix this with the
> link order like was previously done?  I'd really prefer to not add
> another level.

I don't want to call it "final final" at all.  Did you miss the message
where I explained the problem with this being link order dependent?

> Oh, and cc:ing the pci maintainer might be nice next time :)

I already apologised to you on IRC for that yesterday.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] Re: a fix for NS87415 on C3K broken
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Cc: linux-ide@vger.kernel.org,
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Hello Randolph,

> 
> > But when I try to use the ide-cdrom the system carsh with such oops:
> > Backtrace:
> >  [<000000001017e0d8>] drain_array_locked+0x98/0x148
> >  [<000000001017e2c4>] cache_reap+0x13c/0x2b0
> >  [<000000001015e574>] worker_thread+0x284/0x330
> >  [<0000000010164714>] kthread+0x12c/0x138
> >  [<000000001010647c>] ret_from_kernel_thread+0x24/0x38
> 
> maybe this will help:
> http://marc.theaimsgroup.com/?l=3Dlinux-kernel&m=3D109529103522064&w=3D=
2
>
Thanks for advise, it does the trick  :)

> but we are seeing some of these slab errors with this build that are no=
t
> cdrom related too... :(
>
mmm On the N4k with some 2.6.9-rc2-pa6 release, I lso noticed a crash wit=
h
IAOQ refering to free_block () (eventhought that this system loop all the=

night to make -j4 vmlinux without any pb; I just stop the loop and restar=
t
it later and ... panic() ?)
 
> can you try compiling with slab debug (under kernel debugging)?
> 
Of course and btw I will rebuild a 2.6.9-rc2-pa_7_ for the N4k too and a
32b for a b180 and a chroot disk to test the new Carlos glibc build ;)

Thansk again for all advise,
    Joel

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Subject: [parisc-linux] RE: hppa glibc 2.3.3 experimental debs - patches
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> 
> 
> On Thu, Sep 23, 2004 at 11:35:19PM -0400, Carlos O'Donell wrote:
> > http://www.parisc-linux.org/~carlos/glibc-work/glibc-2.3.3-debs-2004-=
09-23/
> > 
> > Binary build only. Haven't cleaned up the debian bits to make it
> > sourcefull.
> 
> Patch against cvs head:
> 
> http://www.parisc-linux.org/~carlos/glibc-work/glibc-hppa-patches-2004-=
09-22.tar.gz
> 
Thanks a lot :)

That said, I just rebuild the kernel 2.6.9-rc2-pa7 (just before Matthew
add new sys_call :( ) on the chroot disk with your deb libc6, libc6-dev
installed. All went fine and even boot without pb.

At the console I also log some test-lws:

applying fixup for 0x3e4, fixup at 0x3f8
Testing lws CAS (syscall #0)
Time: 3203003678 3203003897 (Diff 219)
PASSED: CAS worked correctly.
Testing lws with invalid number (syscall #666)
lws() =3D ENOSYS
Time: 3203021404 3203021423 (Diff 19)
PASSED: lws returned ENOSYS.
Testing lws CAS with NULL address (syscall #0)
lws() =3D EFAULT
Time: 3203040526 3211542412 (Diff 8501886)
PASSED: lws CAS returned EFAULT.
Testing lws CAS with an unaligned address (syscall #0)
Time: 3213802396 3213804615 (Diff 2219)
PASSED: lws CAS worked on unaligned address.
Testing lws CAS in multithreaded environment with signals.
Staring loop 1/1000 [................................] done.
Staring loop 2/1000 [................................] done.
Staring loop 3/1000 [................................] done.
Staring loop 4/1000 [................................] done.
[...]
Staring loop 997/1000 [................................] done.
Staring loop 998/1000 [................................] done.
Staring loop 999/1000 [................................] done.
Staring loop 1000/1000 [................................] done.
PASSED: lws CAS passed multithreaded test (e.g. Your box didn't lockup).
Trying to allocate a maximum number of memory pages.
Tried 2147483648 and failed.
Tried 1073741824 and failed.
Tried 536870912 and failed.
Tried 268435456 and failed.
mmap_max: Allocated 134217728 at 0x50b1e000
Trying to allocate any more spare pages.
Tried 2147483648 and failed.
Tried 1073741824 and failed.
Tried 536870912 and failed.
Tried 268435456 and failed.
mmap_max: Allocated 134217728 at 0x40b1e000
Allocated 0x8000000 (134217728) at 0x50b1e000 to 0x58b1e000.
Zeroing memory... done.
Running CAS over all pages:
PASSED: PASS 1 - CAS worked across a large mmap region of memory.
Increasing memory pressure before PASS 2.
oom-killer: gfp_mask=3D0xd2
DMA per-cpu:
cpu 0 hot: low 16, high 48, batch 8
cpu 0 cold: low 0, high 16, batch 8
Normal per-cpu: empty
HighMem per-cpu: empty

Free pages:         504kB (0kB HighMem)
Active:14605 inactive:14155 dirty:0 writeback:0 unstable:0 free:126 slab:=
1443
mapped:28701 pagetables:484
DMA free:504kB min:360kB low:720kB high:1080kB active:58420kB inactive:56=
620kB
present:131072kB
protections[]: 0 0 0
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:=
0kB
protections[]: 0 0 0
HighMem free:0kB min:128kB low:256kB high:384kB active:0kB inactive:0kB
present:0kB
protections[]: 0 0 0
DMA: 38*4kB 2*8kB 1*16kB 4*32kB 1*64kB 1*128kB 0*256kB 0*512kB 0*1024kB
0*2048kB 0*4096kB =3D 504kB
Normal: empty
HighMem: empty
Swap cache: add 72324, delete 72169, find 18727/22673, race 0+2
Out of Memory: Killed process 5634 (test-lws).
Out of Memory: Killed process 5641 (test-lws).
Terminated

(unfortunately anoying network pb didn't allow me to do more; I will try
on next Monday test-waitid or I you foreseen some more dedicated test I
would better to do (as a make -k check of the lib,... ? )

Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:24934

Hello Grant,

> It builds and anyone curious is welcome to look at it:
>     ftp://ftp.parisc-linux.org/patches/diff-2.6.9-rc2-ns87415_suckyio_c=
leanup-01
> 
I test it with Matthew's patches about DECLARE_FIXUP_... and upstream roc=
k
iso fs and seems to works fine on b2k:)

hth,
    Joel

PS: Don't think it's patch related but I observe a weird behaviour: when
I boot with a cd into the drive and try to mount it I got message: "cdrom=
:
open failed.". I just have to "eject /cdrom; eject -t /cdrom" to mount an=
d
use the same cd without pb?



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Subject: Re: [parisc-linux] Re: a fix for NS87415 on C3K broken
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Cc: linux-ide@vger.kernel.org,
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Xref: news.gmane.org gmane.linux.ports.parisc:24935

Hello Randolph,

Auto-reply for an update (sorry)
> 
> >
> > > But when I try to use the ide-cdrom the system carsh with such oops=
:
> > > Backtrace:
> > >  [<000000001017e0d8>] drain_array_locked+0x98/0x148
> > >  [<000000001017e2c4>] cache_reap+0x13c/0x2b0
> > >  [<000000001015e574>] worker_thread+0x284/0x330
> > >  [<0000000010164714>] kthread+0x12c/0x138
> > >  [<000000001010647c>] ret_from_kernel_thread+0x24/0x38
> >
> > maybe this will help:
> > http://marc.theaimsgroup.com/?l=3Dlinux-kernel&m=3D109529103522064&w=3D=
2
> >
> Thanks for advise, it does the trick  :)
> 
> > but we are seeing some of these slab errors with this build that are
not
> > cdrom related too... :(
> >
> mmm On the N4k with some 2.6.9-rc2-pa6 release, I lso noticed a crash
with
> IAOQ refering to free_block () (eventhought that this system loop all
the
> night to make -j4 vmlinux without any pb; I just stop the loop and rest=
art
> it later and ... panic() ?)
> 
> > can you try compiling with slab debug (under kernel debugging)?
> >
> Of course and btw I will rebuild a 2.6.9-rc2-pa_7_ for the N4k too and
a
> 32b for a b180 and a chroot disk to test the new Carlos glibc build ;)
> 
Well, I test the 2.6.9-rc2-pa7 with slab debug (before Matthew added sys
call) and build this kernel in a loop (now about 30 loop) without pb just=

numerous:
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68
applying fixup for 0x10124d08, fixup at 0x10469a68

any clue?

Thanks again,
    Joel

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Subject: Re: [parisc-linux] Re: a fix for NS87415 on C3K broken
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Xref: news.gmane.org gmane.linux.ports.parisc:24936

> Well, I test the 2.6.9-rc2-pa7 with slab debug (before Matthew added sys
> call) and build this kernel in a loop (now about 30 loop) without pb just
> numerous:
> applying fixup for 0x10124d08, fixup at 0x10469a68
> applying fixup for 0x10124d08, fixup at 0x10469a68

this is just a debug message. i've removed it from the latest codebase.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: [parisc-linux] Re: hppa glibc 2.3.3 experimental debs - patches
	posted
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> Increasing memory pressure before PASS 2.
> Out of Memory: Killed process 5634 (test-lws).
> Out of Memory: Killed process 5641 (test-lws).
> Terminated

You may want to tweak the allocation heuristics here so that it doesn't
kill the process.
 
> (unfortunately anoying network pb didn't allow me to do more; I will try
> on next Monday test-waitid or I you foreseen some more dedicated test I
> would better to do (as a make -k check of the lib,... ? )

make -k check for libc would be good.
I also recommend building gdb to see if had regressions.

c.

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> I also recommend building gdb to see if had regressions.

for some reason, i cannot run the gdb testsuite. the failures look
weird:

Executing on host: as ../../../gdb-cvs/gdb/testsuite/gdb.asm/asmsrc1.s -I../../../gdb-cvs/gdb/testsuite/gdb.asm -I/home/tausq/gdb/build-cvs/gdb/testsuite/gdb.asm -gdwarf2 -o asmsrc1.o    (timeout = 300)
spawn as ../../../gdb-cvs/gdb/testsuite/gdb.asm/asmsrc1.s -I../../../gdb-cvs/gdb/testsuite/gdb.asm -I/home/tausq/gdb/build-cvs/gdb/testsuite/gdb.asm -gdwarf2 -o asmsrc1.o
assembler exited with status -1
assembler output is:
spawn failed
WARNING: Testcase compile failed, so all tests in this file will automatically fail.

if i run the "as" command manually it seems to work.

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: [parisc-linux] (hppa glibc 2.3.3 exp.) Recompile expect,
	then run gdb tests with new expect?
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On Fri, Sep 24, 2004 at 04:03:31PM -0700, Randolph Chung wrote:
> > I also recommend building gdb to see if had regressions.
> 
> for some reason, i cannot run the gdb testsuite. the failures look
> weird:
> 
> Executing on host: as ../../../gdb-cvs/gdb/testsuite/gdb.asm/asmsrc1.s -I../../../gdb-cvs/gdb/testsuite/gdb.asm -I/home/tausq/gdb/build-cvs/gdb/testsuite/gdb.asm -gdwarf2 -o asmsrc1.o    (timeout = 300)
> spawn as ../../../gdb-cvs/gdb/testsuite/gdb.asm/asmsrc1.s -I../../../gdb-cvs/gdb/testsuite/gdb.asm -I/home/tausq/gdb/build-cvs/gdb/testsuite/gdb.asm -gdwarf2 -o asmsrc1.o
> assembler exited with status -1
> assembler output is:
> spawn failed
> WARNING: Testcase compile failed, so all tests in this file will automatically fail.
> 
> if i run the "as" command manually it seems to work.

I think something is broken with expect. Kernel builds seem to progress
well. I'm running a glibc build right now to see if we pickup any
regressions.

If you have a couple of free minutes could you see if you can test
that expect works separately?

I might even recommend rebuilding expect under the new libc and see if
that helps. I'm not saying that this is a solution, but rather that
we might have some slightly incompatible changes somewhere. Perhaps some
behaviour that is *allowed* to change that expect relied upon.

c.


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> >make -k check for libc would be good.
> >I also recommend building gdb to see if had regressions.
> >
> The deb src enough?

I recommend upstream cvs.

c.

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Subject: Re: [parisc-linux] (hppa glibc 2.3.3 exp.) Recompile expect, then run
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> > if i run the "as" command manually it seems to work.
> 
> I think something is broken with expect. Kernel builds seem to progress
> well. I'm running a glibc build right now to see if we pickup any
> regressions.

Actually, I think this is the register corruption issue that I've
mentioned before.  I've seen it affect expect, sh, make, and gcj.
I had a gdb testsuite die two days ago with a SEGV in expect that
looked as if r19 had been clobbered.  It was 0 in a shared library.
I don't know how it got to be 0 though.

Dave
-- 
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Subject: Re: [parisc-linux] (hppa glibc 2.3.3 exp.) Recompile expect, then
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On Sun, Sep 26, 2004 at 03:03:42PM -0400, John David Anglin wrote:
> > Does it spend 5 minutes writing errors to the terminal? :)
> 
> No.  It either dumps core or hangs.

Haha :)
 
> > Have you tried running the experimental glibc packages in a chroot?
> 
> Sorry, I haven't had time in the past few days.  I've had a contract
> to get GCC buiding on AIX 4.3.3.

I ran my own. How does this look? I don't like the SEGV there...

make[1]: Entering directory `/mnt/flaire/src/toolchain-build/src/gcc-build32-glibc-2.3.3/gcc'
(rootme=`${PWDCMD-pwd}`; export rootme; \
srcdir=`cd ../../gcc-cvs/gcc; ${PWDCMD-pwd}` ; export srcdir ; \
cd testsuite; \
EXPECT=expect ; export EXPECT ; \
if [ -f ${rootme}/../expect/expect ] ; then  \
   TCL_LIBRARY=`cd .. ; cd ../../gcc-cvs/gcc/../tcl/library ; ${PWDCMD-pwd}` ; \
    export TCL_LIBRARY ; fi ; \
runtest --tool gcc )
Test Run By carlos on Sun Sep 26 14:58:56 2004
Native configuration is hppa-unknown-linux-gnu

                === gcc tests ===

Schedule of variations:
    unix

Running target unix
Using /usr/share/dejagnu/baseboards/unix.exp as board description file for target.
Using /usr/share/dejagnu/config/unix.exp as generic interface file for target.
Using /home/carlos/fsrc/toolchain-build/src/gcc-cvs/gcc/testsuite/config/default.exp as tool-and-target-specific interface file.
Running /home/carlos/fsrc/toolchain-build/src/gcc-cvs/gcc/testsuite/gcc.c-torture/compile/compile.exp ...
FAIL: gcc.c-torture/compile/20020807-1.c  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gcc.c-torture/compile/20020807-1.c  -O3 -g  (test for excess errors)
FAIL: gcc.c-torture/compile/20040602-1.c  -O0  (test for excess errors)
FAIL: gcc.c-torture/compile/20040602-1.c  -O1  (test for excess errors)
FAIL: gcc.c-torture/compile/20040602-1.c  -O2  (test for excess errors)
FAIL: gcc.c-torture/compile/20040602-1.c  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gcc.c-torture/compile/20040602-1.c  -O3 -g  (test for excess errors)
FAIL: gcc.c-torture/compile/20040602-1.c  -Os  (test for excess errors)
Running /home/carlos/fsrc/toolchain-build/src/gcc-cvs/gcc/testsuite/gcc.c-torture/execute/builtins/builtins.exp ...
got a SEGV signal, segmentation violation

                === gcc Summary ===

# of expected passes            3589
# of unexpected failures        8
# of expected failures          6
# of unsupported tests          30
WARNING: program timed out.
Couldn't determine version of /usr/bin/gcc:

This is the 3_4-branch from a little while back.

It looks like it's still running?

c.

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Subject: Re: [parisc-linux] (hppa glibc 2.3.3 exp.) Recompile expect, then
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> I ran my own. How does this look? I don't like the SEGV there...

Not good.  See <http://gcc.gnu.org/ml/gcc-testresults/2004-09/msg01180.html>.

> FAIL: gcc.c-torture/compile/20020807-1.c  -O3 -fomit-frame-pointer  (test
> for excess errors)
> FAIL: gcc.c-torture/compile/20020807-1.c  -O3 -g  (test for excess errors)
> FAIL: gcc.c-torture/compile/20040602-1.c  -O0  (test for excess errors)
> FAIL: gcc.c-torture/compile/20040602-1.c  -O1  (test for excess errors)
> FAIL: gcc.c-torture/compile/20040602-1.c  -O2  (test for excess errors)
> FAIL: gcc.c-torture/compile/20040602-1.c  -O3 -fomit-frame-pointer  (test
> for excess errors)
> FAIL: gcc.c-torture/compile/20040602-1.c  -O3 -g  (test for excess errors)
> FAIL: gcc.c-torture/compile/20040602-1.c  -Os  (test for excess errors)

I've never seen these fail.  Look in gcc.log.  I may provide some
clues.  If not, compile the test manually and see what's wrong.

Most of the gcc suite doesn't use glibc much.  Thus, it may be gcc
has been miscompiled.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hello Johannes,
> >
[...]
> I tried:
> palinux-712-defconfig-2.6.8.1-pa11
> palinux-b180-defconfig-2.6.8.1-pa11
> palinux-32-2.6.6-pa4
> palinux-712-defconfig-2.6.6-pa4
> palinux-b180-defconfig-2.6.6-pa4
> 
> all with the same result as before.
> 
> After that I compiled a 2.6.9-rc2-pa7 kernel without support for frameb=
uffer
> 
> (CONFIG_FB) which booted perfectly with serial console.
Cool :)

> So I think we can track down the problem to the framebuffer driver in
the
> 
> kernels > 2.6 with my graphics device, which should be supported accord=
ing
> to 
> the beginning of stifb.c.

I trust that it's a known issue: read the thread on debian-hppa <http://l=
ists.debian.org/debian-hppa/2004/09/msg00000.html>


> I attached both, the 2.4 and the 2.6 dmesg.
> 
Thanks

> What could I try next ??
> 
It seems that severall are already working on this pb :).

Regards,
    Joel

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> 
> > Whish binutils are you using?
> > Duno if it's relevant but I noticed that debian is a rare distro usin=
g
> 2.15
> > while many time it seems that 2.15.91.0.2 is prefered 
> > as
> > <http://www.kernel.org/pub/linux/devel/binutils/release.binutils-2.15=
.91.0.2
> 
> Linux binutils isn't tested on parisc-linux.
hmm fwiw, I try first to rebuild 2.15 deb package but it failed?
Otc with my script, I reach to rebuild 2.15.91.0.2 without pb :)
But with make -k check I encounter 41 FAIL :( (eventhought some seems ok
as far as only build the static lib first)

How to analyse?
How to compare: going forward with CVS or backward with 2.15?

>   If you use this, you are
> adding another organization to the support loop (hjl@lucon.org).  I cou=
ld
> be wrong but I believe that Lu does this work for Intel.
> 
Much more work before anything else I trust ;)

Joel


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> Hello Johannes,
>
> [...]
>
> > I tried:
> > palinux-712-defconfig-2.6.8.1-pa11
> > palinux-b180-defconfig-2.6.8.1-pa11
> > palinux-32-2.6.6-pa4
> > palinux-712-defconfig-2.6.6-pa4
> > palinux-b180-defconfig-2.6.6-pa4
> >
> > all with the same result as before.
> >
> > After that I compiled a 2.6.9-rc2-pa7 kernel without support for
> > framebuffer
> >
> > (CONFIG_FB) which booted perfectly with serial console.
>
> Cool :)
>
> > So I think we can track down the problem to the framebuffer driver in
>
> the
>
> > kernels > 2.6 with my graphics device, which should be supported
> > according to
> > the beginning of stifb.c.
>
> I trust that it's a known issue: read the thread on debian-hppa
> <http://lists.debian.org/debian-hppa/2004/09/msg00000.html>
>
> > I attached both, the 2.4 and the 2.6 dmesg.
>
> Thanks
>
> > What could I try next ??
>
> It seems that severall are already working on this pb :).
>
> Regards,
>     Joel
>
> -------------------------------------------------------------------------=
=2D-
> Tiscali ADSL GO, 29,50 Euro/mois pendant toute une ann=E9e, profitez-en...
> http://reg.tiscali.be/adsl/welcome.asp?lg=3DFR

Hi again,

I don't know if this is really the same problem. The problem described in t=
he=20
link is about the penguin getting his legs chopped. I would be glad if I=20
could even see a penguin, with or without legs :).
Where can I get 2.6.4-hppa-kernels? I tried the source from www.kernel.org,=
=20
but this seems to lack HIL-support and at the cvs.parisc-linux.org site the=
=20
oldest kernels are 2.6.5.
With a 2.6.4 kernel I could verify if I have the same problem as mentioned =
in=20
the link above, because this problem first came up with kernels > 2.6.4.

Regards Johannes

=2D-=20
Johannes Raspe - j.raspe@t-online.de
GnuPG-Key ID: D342E105
=46ingerprint: D681 F800 FB2D 913E D14C 1F17 C3DB B1F1 D342 E105
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Hello Johannes,
> >
> > [...]
> >
> > > I tried:
> > > palinux-712-defconfig-2.6.8.1-pa11
> > > palinux-b180-defconfig-2.6.8.1-pa11
> > > palinux-32-2.6.6-pa4
> > > palinux-712-defconfig-2.6.6-pa4
> > > palinux-b180-defconfig-2.6.6-pa4
> > >
> > > all with the same result as before.
> > >
> > > After that I compiled a 2.6.9-rc2-pa7 kernel without support for
> > > framebuffer
> > >
> > > (CONFIG_FB) which booted perfectly with serial console.
> >
> > Cool :)
> >
> > > So I think we can track down the problem to the framebuffer driver
in
> >
> > the
> >
> > > kernels > 2.6 with my graphics device, which should be supported
> > > according to
> > > the beginning of stifb.c.
> >
> > I trust that it's a known issue: read the thread on debian-hppa
> > <http://lists.debian.org/debian-hppa/2004/09/msg00000.html>
> >
> > > I attached both, the 2.4 and the 2.6 dmesg.
> >
> > Thanks
> >
> > > What could I try next ??
> >
> > It seems that severall are already working on this pb :).
> >
> > Regards,
> >     Joel
> >
> > ---------------------------------------------------------------------=
------
> > Tiscali ADSL GO, 29,50 Euro/mois pendant toute une ann=E9e, profitez-=
en...
> > http://reg.tiscali.be/adsl/welcome.asp?lg=3DFR
> 
> Hi again,
> 
> I don't know if this is really the same problem. The problem described
in
> the 
> link is about the penguin getting his legs chopped. I would be glad if
I
> 
> could even see a penguin, with or without legs :).
I just had the feeling of a stifb pb (It's a ong time that I didn't paly
any more with stifb on my c110 or b180)?

> Where can I get 2.6.4-hppa-kernels? I tried the source from www.kernel.=
org,
> 
Either you choose anonymous co of cvs tree:
see <http://www.parisc-linux.org/faq/cvs.html>

or you grab the tarball at:
<http://cvs.parisc-linux.org/download/linux-2.6/>
(the patch against vanilla src is also available)

> but this seems to lack HIL-support and at the cvs.parisc-linux.org site=

the
> 
> oldest kernels are 2.6.5.
> With a 2.6.4 kernel I could verify if I have the same problem as mentio=
ned
> in 
> the link above, because this problem first came up with kernels > 2.6.4=
.
> 
Hmm good starting point :)

Good luck,
    Joel

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Subject: Re: [parisc-linux] (hppa glibc 2.3.3 exp.) Recompile expect, then
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> -- Original Message --
> To: carlos@baldric.uwo.ca (Carlos O'Donell)
> Date: Mon, 27 Sep 2004 22:02:39 -0400 (EDT)
> From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
> Cc: parisc-linux@parisc-linux.org
> Subject: Re: [parisc-linux] (hppa glibc 2.3.3 exp.) Recompile expect,
then
> 
> 
> > What branch do you recommend?
> 
> 3.4.  Some stuff is broken is 4.0.
> 
grr 3.4 is broken to rebuild glibc (not yet any feedback for my br and 3.=
5
deb pkg failed on a ice :( )

Joel

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Subject: Re: [parisc-linux] Re: hppa glibc 2.3.3 experimental debs - patch
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>  
> > 2) What's the secret code to compile glibc?  My usual incantation of
> > <patch>
> > ../configure \
> > 	--prefix=3D/usr \
> > 	--mandir=3D/usr/share/man \
> > 	--infodir=3D/usr/share/info \
> > 	--enable-add-ons=3Dlinuxthreads \
> > 	--without-tls \
> > 	--without-__thread \
> > 	--without-cvs \
> > 	--enable-kernel=3D2.4.0 \
> 
> Should be fine.
>  
> > doesn't seem to do the trick.
> 
hmm for my part, I used to configure glibc cvs + Carlos patches with foll=
owing
cmds:
# unset LD_LIBRARY_PATH; unset LD_RUN_PATH; export AUTOCONF=3Dfalse

## !! to install on a chroot fs !! ##
# ../../sources/glibc/configure \
  --target=3Dhppa-linux \
  --host=3Dhppa-linux \
  --build=3Dhppa-linux \
  --prefix=3D/usr \
  --without-cvs \
  --enable-hacker-mode \
  --enable-add-ons=3Dlinuxthreads \
  --enable-profile \
  --with-headers=3D/Develop/parisc-linux/sources/linux/include \
  2>&1 | tee ../../logs/glibc-2.3.3-20040308_Configure

(that was operational since this date :) )

# make 2>&1 | tee ../../logs/glibc-2.3.3-20040308_Make (if you want to sa=
ve
logs in case of fail)

And finaly to install on your chroot fs:
 
# make install_root=3D/mnt/chroot install (!! don't forget to adapt /mnt/=
chroot
to YOUR chroot fs !!)

hth,
    Joel

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(...)
>> Where can I get 2.6.4-hppa-kernels? I tried the source from
www.kernel.org,
>>
>Either you choose anonymous co of cvs tree:
>see <http://www.parisc-linux.org/faq/cvs.html>

>or you grab the tarball at:
><http://cvs.parisc-linux.org/download/linux-2.6/>
>(the patch against vanilla src is also available)

>> but this seems to lack HIL-support and at the cvs.parisc-linux.org
site
>>the
>>
>> oldest kernels are 2.6.5.
>> With a 2.6.4 kernel I could verify if I have the same problem as
mentioned
>> in
>> the link above, because this problem first came up with kernels >
2.6.4.
>>
>Hmm good starting point :)

>Good luck,
>    Joel

Hi Joel,

unfortunately I can't find any suitable 2.6.4 kernel or kernel-source on
http://cvs.parisc-linux.org/download/linux-2.6/ !
The 2.4.6 kernel-source-tar.bz2 in /autobuild has no hppa-specific
extensions (no HIL-support) and the oldest pa-kernels
and pa-sources available are 2.6.5.

Any idea whre I can get 2.6.4 pa-specific kernel binaries or kernel
sources? How could I use cvs to get an old kernel source like 2.6.4?

Thanks Johannes





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Subject: Re: [parisc-linux] No 2.6 kernel on 735/125 with CRX24?
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Hello  Johannes,

> Hi Joel,
>
> your tips are great, many thanks for your help.
welcome :)

> I got the 2.6.4-pa2-version from cvs with your date-tip, configured and=


> compiled it but unfortunately it shows the same behaviour like the newe=
r
>
> 2.6-kernels. Nothing but a blue screen (btw: is this a trademark of
> Microsoft?) after initialisation of the fb-device (at least I think so)=
.
>
> Any more clues, how to get the 2.6 kernels working?
>
Unfortunately no :(

iirc Helge Deller is the maintainner, I trust he would have read those pr=

:)

Joel


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Subject: Re: [parisc-linux] Re: hppa glibc 2.3.3 experimental debs - patch
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Hello jda,

> > Certainly a pb with configure options:
> > sources/binutils/configure  --target=3D3Dhppa-linux --host=3D3Dhppa-l=
inux
> > --build=3D3Dhppa-linux
> > --prefix=3D3D/mnt/palin/Develop/parisc-linux/xc --disable-nls
>
> There is nothing obviously wrong with the configure command.  Look
> at the FAILs in the file ld/testsuite/ld.log.
Now it's ld/ld.log :) and effectively interesting :)

>  Some of the ld tests
> depend on finding the linker used by gcc and they might fail if
> gcc was built using the --with-ld=3D option.  However, that's just
> speculation.
>
Exactely:
All failed because:
/mnt/palin/Develop/parisc-linux/build/binutils/ld/ld-new: warning: ld.so.=
1,
needed by /lib/libc.so.6, not found (try using -rpath or -rpath-link)

even thought the cmds of the form:
/mnt/palin/Develop/parisc-linux/build/binutils/ld/ld-new -m hppalinux  -o=

tmpdir/ld1 -dynamic-linker /lib/ld.so.1 ...

(the -rpath help but how to put this in configure?)

Never the less the following workaround did the trick befor the 'make -k
check' of binuitls:
export LD_LIBRARY_PATH=3D/lib

                 =3D=3D=3D ld Summary =3D=3D=3D

# of expected passes            166
# of expected failures          38

:)

Thanks again for your help and patience,
    Joel

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From: j.raspe@t-online.de (Johannes Raspe)
Newsgroups: gmane.linux.ports.parisc
Subject: Framebuffer broken on 735/125 with 2.6-kernels (was: No 2.6 kernel on 735/125 with CRX24?)
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Hi,

after many tries with many different kernels I got back to kernel-version 
2.6.0-pa6 checked out from cvs.
With this kernel I get the same result as with all other 2.6-kernels: a blue 
screen and a hanging machine after the initalisation of the fb-device.
But with this kernel I got a stack-dump which I appended in a txt-file.

I don't know if this dump is very useful, because when I configure the kernel 
without support for fb-device the kernel gives errors too, but the screen 
does not turn blue and the machine does not hang immediately.

After all this I checked out the "/drivers/video" directory from  Sun Sep 28 
02:27:21 2003 (this was version 1.4.2.1 of stifb.c, before the 
Precisionbook-corrections) and replaced the original 2.6.0-pa6 
"drivers/video" directory with the older one.
The kernel compiled cleanly but he symptomps were the same as above (stack 
dump appended as "output-2.6.0-pa6-with_old_video_directory.txt"), which 
brings me to the conclusion that the fb-device on my 735/125 (CRX24) broke 
with the transition from the 2.4 (I actually use 2.4.27-pa4) to the 2.6 
kernel-series.

Without "CONFIG_FB" 2.6.4 and the latest 2.6.9 boot cleanly.

Regards

Johannes
-- 
Johannes Raspe - j.raspe@t-online.de
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Command line for kernel: 'root=/dev/sda6 HOME=/ console=ttyS0 TERM=vt102 palo_k'
Selected kernel: /vmlinux-2.6.0 from partition 2
ELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 2130833 mediaptr 0x1000
Segment 1 load 0030a000 size 356536 mediaptr 0x20a000
Segment 2 load 00364000 size 192645 mediaptr 0x262000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.0-pa6 (johio@APOLLO) (gcc-Version 3.3.4 (Debian 1:3.3.4-12)) 4
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00002060 00000481 00000000 00000000 77584fb0 ffffffff 00000004 0000000a 0a
vers  00000015
model 9000/735
Total Memory: 272 Mb
On node 0 totalpages: 69632
  DMA zone: 69632 pages, LIFO batch:16
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Building zonelist for node : 0
Kernel command line: root=/dev/sda6 HOME=/ console=ttyS0 TERM=vt102 palo_kernel0
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x128
Memory: 272636k available
Calibrating delay loop... 124.51 BogoMIPS
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
POSIX conformance testing by UNIFIX
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Coral SGC Graphics at 0xf8000000 [1] { 10, 0x0, 0x004, 0x00077 }
2. Outfield Core BA at 0xf082f000 [2] { 11, 0x0, 0x009, 0x00070 }
3. Outfield Core SCSI at 0xf0825000 [2/0/1] { 10, 0x0, 0x009, 0x00071 }
4. Outfield Core LAN (802.3) at 0xf0826000 [2/0/2] { 10, 0x0, 0x009, 0x00072 }
5. Outfield Core HIL at 0xf0821000 [2/0/3] { 10, 0x0, 0x009, 0x00073 }
6. Outfield Core RS-232 at 0xf0823000 [2/0/4] { 10, 0x0, 0x009, 0x00075 }
7. Outfield Core RS-232 at 0xf0822000 [2/0/5] { 10, 0x0, 0x009, 0x00075 }
8. Outfield Core Centronics at 0xf0824000 [2/0/6] { 10, 0x0, 0x009, 0x00074 }
9. Outfield FW SCSI at 0xf0830000 [2/0/7] { 10, 0x0, 0x009, 0x0007c }
10. Outfield Audio at 0xf1000000 [2/0/8] { 10, 0x0, 0x009, 0x0007f }
11. Cobra EISA BA at 0xfc000000 [4] { 11, 0x0, 0x004, 0x00076 }
12. Snake Cheetah (735/130) at 0xfffbe000 [8] { 0, 0x0, 0x206, 0x00004 }
13. Memory at 0xfffbf000 [9] { 1, 0x0, 0x037, 0x00009 }
CPU(s): 1 x PA7100 (PCX-T) at 125.000000 MHz
Cutoff version 4 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered
SCSI subsystem initialized
STI GSC/PCI core graphics driver Version 0.9a
    id 26d148ee-40a00499, conforms to spec rev. 8.02
    graphics card name: HPA1439A
fb0: stifb 1280x1024-32 frame buffer device, HPA1439A, id: 26d148ee, mmio: 0xf80
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Soft power switch support not available.

Stack Dump:
 10064a58:  10064a58 081a0245 6fc50080 2b602000
 10064a48:  22926000 6bc23fd9 22726000 e840c002
 10064a38:  0f131280 34130002 87002008 0f331280
 10064a28:  34130002 87202008 34370800 e81f1d05
 10064a18:  2b602000 341c3fff e81f1d9d 00000000
 10064a08:  100646c0 0000001a 0000001c 2b602000
 100649f8:  6bd43eb1 e81f1db5 6bd33ea1 10104684
 100649e8:  08930a13 4bd43eb1 4bd33ea1 08040258
 100649d8:  0000000f 10321ee0 0000000f 0000000e
 100649c8:  00000010 00000000 10321e04 08040259
 100649b8:  2b602000 86602028 49130220 1013d2cc
 100649a8:  4bd73eb1 888320a2 081c0244 d35a1ff0
 10064998:  e85f045d f9000000 ffffffff 10064508
 10064988:  00000020 4bd83ea1 343a0828 e85f0a25
 10064978:  08050257 08030259 2b602000 0ae30003
 10064968:  86c02030 0ab90403 0aa50415 0a930205
 10064958:  10321e04 10321ed0 0000000f 00000000
 10064948:  10321e04 00000000 10321e04 4bd83ea1
 10064938:  8f803f35 0806025a e85f1c75 1013d53c
 10064928:  4bd53eb1 8333a038 0b070419 d6740821
 10064918:  08180259 8e602028 0af80213 36973fff
 10064908:  0cc81094 4fc93f01 e840c000 4bc33f31
 100648f8:  4bc43f29 4bc53f21 4bc63f19 10109088
 100648e8:  4bc83f09 4bc23ed9 0938041c 08180254
 100648d8:  8b07bf45 10321e04 00000201 00000001
 100648c8:  10322140 106677b0 10321e04 37d93eb1
 100648b8:  0806025a 343a07a0 e85f0bbd 1013d53c
 100648a8:  08140258 2b602000 34370810 2b602000
 10064898:  10321e04 00000210 0000001c 00000000
 10064888:  0e742088 00000017 20ffaba0 20ffabac
 10064878:  00000020 000000d0 00000001 10255edc
 10064868:  10255ed8 00000000 00000000 00000000
 10064858:  00000000 00000000 00000000 00000000
 10064848:  00000000 00000000 00000000 00000000
 10064838:  41000000 00000000 40800000 00000000
 10064828:  40000000 00000000 40000000 fffffde0
 10064818:  41800000 00000000 40200000 00000000
 10064808:  40200000 00000000 40300000 00000000
 100647f8:  41000000 00000000 40800000 fffffde0
 100647e8:  fffffde0 00000000 41000000 fffffde0
 100647d8:  fffffde0 00000000 40800000 00000000
 100647c8:  41000000 fffffde0 fffffde0 00000000
 100647b8:  00000000 00000010 00000010 00000000
 100647a8:  41800000 00000000 00000000 00000000
 10064798:  00000000 ffffffff 7f7fffff ffffffff
 10064788:  7f7fffff fffffde0 fffffde0 00000000
 10064778:  000003c7 00000000 4471cccc 00000000
 10064768:  431c0000 00000000 42780000 00000000
 10064758:  00000000 00000000 00856606 00000000
 10064748:  00000000 00000000 08090800 10255d20
 10064738:  100646c0 00000000 00000500 1030a010
 10064728:  00002000 00000000 00000000 00000000
 10064718:  00000000 00000000 00000007 00000000
 10064708:  ffffffff 00000000 00000000 00000200
 100646f8:  00000010 000000ff 10064508 00000000
 100646e8:  00000000 00000500 00002000 20f37000
 100646d8:  00000020 10064508 ffffffff f9000000
 100646c8:  1024b0c4 00000000 0004ff0f 103b7534
 100646b8:  00000020 000000d0 00000001 1024f48c
 100646a8:  00000001 00000000 20ff5bc0 10064548
 10064698:  10321e04 00000208 0000000f 00000000
 10064688:  10321e04 00000003 10321e04 20ffab38
 10064678:  00000060 000000d0 00000001 20e9c0a0
 10064668:  ffffffff 000000a0 20e38140 00000001

Kernel addresses on the stack:
 [<10104380>] parisc_terminate+0x60/0xb8
 [<10104684>] handle_interruption+0x2ac/0x5b0
 [<1013d2cc>] rmqueue_bulk+0x78/0xa4
 [<1013d53c>] buffered_rmqueue+0xd8/0x164
 [<10109088>] intr_check_sig+0x0/0xc
 [<1013d53c>] buffered_rmqueue+0xd8/0x164
 [<10255edc>] cfb_imageblit+0x24c/0x55c
 [<1024f48c>] move_buf_aligned+0x58/0x84
 [<1024b0c4>] putcs_aligned+0x18c/0x21c
 [<102547bc>] stifb_setcolreg+0xc4/0x118
 [<1024b4ec>] accel_putcs+0xac/0xd8
 [<102533c0>] fb_set_cmap+0xec/0x1b8
 [<10207a1c>] do_update_region+0x1e0/0x234
 [<102087b0>] redraw_screen+0x120/0x1b4
 [<10208680>] set_origin+0xb0/0xc0
 [<10208e38>] vc_resize+0x374/0x430
 [<10141130>] cache_alloc_refill+0x1b4/0x270
 [<1024bce4>] fbcon_set_display+0x3a0/0x7a4
 [<10208918>] visual_init+0xb0/0x124
 [<1020d02c>] take_over_console+0x1e0/0x244
 [<10126f44>] __tasklet_schedule+0x70/0x74
 [<103714c0>] fb_console_init+0x3c/0x4c
 [<1036e760>] vty_init+0xec/0x114
 [<1036dd80>] tty_init+0x22c/0x250
 [<1036da48>] rand_initialize+0x6c/0xfc
 [<10364fa4>] do_initcalls+0x58/0xdc
 [<101001d0>] init+0x28/0xd4
 [<10108c5c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=26 regs=100646c0 (Addr=0000001c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 00000000 1024b0c4 f9000000
r04-07  ffffffff 10064508 00000020 20f37000
r08-11  00002000 00000500 00000000 00000000
r12-15  10064508 000000ff 00000010 00000200
r16-19  00000000 00000000 ffffffff 00000000
r20-23  00000007 00000000 00000000 00000000
r24-27  00000000 00000000 00002000 1030a010
r28-31  00000500 00000000 100646c0 10255d20
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10255ed8 10255edc
 IIR: 0e742088    ISR: 00000000  IOR: 0000001c
 CPU:        0   CR30: 10064000 CR31: 10359000
 ORIG_R28: 00000020
 IAOQ[0]: cfb_imageblit+0x248/0x55c
 IAOQ[1]: cfb_imageblit+0x24c/0x55c
 RP(r2): putcs_aligned+0x18c/0x21c

--Boundary-00=_pXwWBRBPUSNsQsv
Content-Type: text/plain;
  charset="iso-8859-15";
  name="output-2.6.0-pa6-with_old_video_directory.txt"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename="output-2.6.0-pa6-with_old_video_directory.txt"

Command line for kernel: 'root=/dev/sda6 HOME=/ console=ttyS0 TERM=vt102 palo_k'
Selected kernel: /vmlinux-2.6.0 from partition 2
ELF32 executable
Entry 00100000 first 00100000 n 3
Segment 0 load 00100000 size 2130833 mediaptr 0x1000
Segment 1 load 0030a000 size 356536 mediaptr 0x20a000
Segment 2 load 00364000 size 192645 mediaptr 0x262000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.0-pa6 (johio@APOLLO) (gcc-Version 3.3.4 (Debian 1:3.3.4-12)) 4
FP[0] enabled: Rev 1 Model 9
The 32-bit Kernel has started...
Determining PDC firmware type: Snake.
model 00002060 00000481 00000000 00000000 77584fb0 ffffffff 00000004 0000000a 0a
vers  00000015
model 9000/735
Total Memory: 272 Mb
On node 0 totalpages: 69632
  DMA zone: 69632 pages, LIFO batch:16
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Building zonelist for node : 0
Kernel command line: root=/dev/sda6 HOME=/ console=ttyS0 TERM=vt102 palo_kernel0
PID hash table entries: 16 (order 4: 128 bytes)
Console: colour dummy device 160x128
Memory: 272636k available
Calibrating delay loop... 124.51 BogoMIPS
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
POSIX conformance testing by UNIFIX
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Coral SGC Graphics at 0xf8000000 [1] { 10, 0x0, 0x004, 0x00077 }
2. Outfield Core BA at 0xf082f000 [2] { 11, 0x0, 0x009, 0x00070 }
3. Outfield Core SCSI at 0xf0825000 [2/0/1] { 10, 0x0, 0x009, 0x00071 }
4. Outfield Core LAN (802.3) at 0xf0826000 [2/0/2] { 10, 0x0, 0x009, 0x00072 }
5. Outfield Core HIL at 0xf0821000 [2/0/3] { 10, 0x0, 0x009, 0x00073 }
6. Outfield Core RS-232 at 0xf0823000 [2/0/4] { 10, 0x0, 0x009, 0x00075 }
7. Outfield Core RS-232 at 0xf0822000 [2/0/5] { 10, 0x0, 0x009, 0x00075 }
8. Outfield Core Centronics at 0xf0824000 [2/0/6] { 10, 0x0, 0x009, 0x00074 }
9. Outfield FW SCSI at 0xf0830000 [2/0/7] { 10, 0x0, 0x009, 0x0007c }
10. Outfield Audio at 0xf1000000 [2/0/8] { 10, 0x0, 0x009, 0x0007f }
11. Cobra EISA BA at 0xfc000000 [4] { 11, 0x0, 0x004, 0x00076 }
12. Snake Cheetah (735/130) at 0xfffbe000 [8] { 0, 0x0, 0x206, 0x00004 }
13. Memory at 0xfffbf000 [9] { 1, 0x0, 0x037, 0x00009 }
CPU(s): 1 x PA7100 (PCX-T) at 125.000000 MHz
Cutoff version 4 at 0xf082f000 found.
LED (ASP-style) display at f0800020 registered
SCSI subsystem initialized
STI GSC/PCI core graphics driver Version 0.9a
    id 26d148ee-40a00499, conforms to spec rev. 8.02
    graphics card name: HPA1439A
fb0: stifb 1280x1024-32 frame buffer device, HPA1439A, id: 26d148ee, mmio: 0xf80
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Soft power switch support not available.

Stack Dump:
 10064a58:  10064a58 081a0245 6fc50080 2b602000
 10064a48:  22926000 6bc23fd9 22726000 e840c002
 10064a38:  0f131280 34130002 87002008 0f331280
 10064a28:  34130002 87202008 34370800 e81f1d05
 10064a18:  2b602000 341c3fff e81f1d9d 00000000
 10064a08:  100646c0 0000001a 0000001c 2b602000
 100649f8:  6bd43eb1 e81f1db5 6bd33ea1 10104684
 100649e8:  08930a13 4bd43eb1 4bd33ea1 08040258
 100649d8:  0000000f 10321ee0 0000000f 0000000e
 100649c8:  00000010 00000000 10321e04 08040259
 100649b8:  2b602000 86602028 49130220 1013d2cc
 100649a8:  4bd73eb1 888320a2 081c0244 d35a1ff0
 10064998:  e85f045d f9000000 ffffffff 10064508
 10064988:  00000020 4bd83ea1 343a0828 e85f0a25
 10064978:  08050257 08030259 2b602000 0ae30003
 10064968:  86c02030 0ab90403 0aa50415 0a930205
 10064958:  10321e04 10321ed0 0000000f 00000000
 10064948:  10321e04 00000000 10321e04 4bd83ea1
 10064938:  8f803f35 0806025a e85f1c75 1013d53c
 10064928:  4bd53eb1 8333a038 0b070419 d6740821
 10064918:  08180259 8e602028 0af80213 36973fff
 10064908:  0cc81094 4fc93f01 e840c000 4bc33f31
 100648f8:  4bc43f29 4bc53f21 4bc63f19 10109088
 100648e8:  4bc83f09 4bc23ed9 0938041c 08180254
 100648d8:  8b07bf45 10321e04 00000201 00000001
 100648c8:  10322140 106677b0 10321e04 37d93eb1
 100648b8:  0806025a 343a07a0 e85f0bbd 1013d53c
 100648a8:  08140258 2b602000 34370810 2b602000
 10064898:  10321e04 00000210 0000001c 00000000
 10064888:  0e742088 00000017 20ffaba0 20ffabac
 10064878:  00000020 000000d0 00000001 10255edc
 10064868:  10255ed8 00000000 00000000 00000000
 10064858:  00000000 00000000 00000000 00000000
 10064848:  00000000 00000000 00000000 00000000
 10064838:  41000000 00000000 40800000 00000000
 10064828:  40000000 00000000 40000000 fffffde0
 10064818:  41800000 00000000 40200000 00000000
 10064808:  40200000 00000000 40300000 00000000
 100647f8:  41000000 00000000 40800000 fffffde0
 100647e8:  fffffde0 00000000 41000000 fffffde0
 100647d8:  fffffde0 00000000 40800000 00000000
 100647c8:  41000000 fffffde0 fffffde0 00000000
 100647b8:  00000000 00000010 00000010 00000000
 100647a8:  41800000 00000000 00000000 00000000
 10064798:  00000000 ffffffff 7f7fffff ffffffff
 10064788:  7f7fffff fffffde0 fffffde0 00000000
 10064778:  000003c7 00000000 4471cccc 00000000
 10064768:  431c0000 00000000 42780000 00000000
 10064758:  00000000 00000000 00856606 00000000
 10064748:  00000000 00000000 08090800 10255d20
 10064738:  100646c0 00000000 00000500 1030a010
 10064728:  00002000 00000000 00000000 00000000
 10064718:  00000000 00000000 00000007 00000000
 10064708:  ffffffff 00000000 00000000 00000200
 100646f8:  00000010 000000ff 10064508 00000000
 100646e8:  00000000 00000500 00002000 20f37000
 100646d8:  00000020 10064508 ffffffff f9000000
 100646c8:  1024b0c4 00000000 0004ff0f 103b7534
 100646b8:  00000020 000000d0 00000001 1024f48c
 100646a8:  00000001 00000000 20ff5bc0 10064548
 10064698:  10321e04 00000208 0000000f 00000000
 10064688:  10321e04 00000003 10321e04 20ffab38
 10064678:  00000060 000000d0 00000001 20e9c0a0
 10064668:  ffffffff 000000a0 20e38140 00000001

Kernel addresses on the stack:
 [<10104380>] parisc_terminate+0x60/0xb8
 [<10104684>] handle_interruption+0x2ac/0x5b0
 [<1013d2cc>] rmqueue_bulk+0x78/0xa4
 [<1013d53c>] buffered_rmqueue+0xd8/0x164
 [<10109088>] intr_check_sig+0x0/0xc
 [<1013d53c>] buffered_rmqueue+0xd8/0x164
 [<10255edc>] cfb_imageblit+0x24c/0x55c
 [<1024f48c>] move_buf_aligned+0x58/0x84
 [<1024b0c4>] putcs_aligned+0x18c/0x21c
 [<102547bc>] stifb_setcolreg+0xc4/0x118
 [<1024b4ec>] accel_putcs+0xac/0xd8
 [<102533c0>] fb_set_cmap+0xec/0x1b8
 [<10207a1c>] do_update_region+0x1e0/0x234
 [<102087b0>] redraw_screen+0x120/0x1b4
 [<10208680>] set_origin+0xb0/0xc0
 [<10208e38>] vc_resize+0x374/0x430
 [<10141130>] cache_alloc_refill+0x1b4/0x270
 [<1024bce4>] fbcon_set_display+0x3a0/0x7a4
 [<10208918>] visual_init+0xb0/0x124
 [<1020d02c>] take_over_console+0x1e0/0x244
 [<10126f44>] __tasklet_schedule+0x70/0x74
 [<103714c0>] fb_console_init+0x3c/0x4c
 [<1036e760>] vty_init+0xec/0x114
 [<1036dd80>] tty_init+0x22c/0x250
 [<1036da48>] rand_initialize+0x6c/0xfc
 [<10364fa4>] do_initcalls+0x58/0xdc
 [<101001d0>] init+0x28/0xd4
 [<10108c5c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=26 regs=100646c0 (Addr=0000001c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 00000000 1024b0c4 f9000000
r04-07  ffffffff 10064508 00000020 20f37000
r08-11  00002000 00000500 00000000 00000000
r12-15  10064508 000000ff 00000010 00000200
r16-19  00000000 00000000 ffffffff 00000000
r20-23  00000007 00000000 00000000 00000000
r24-27  00000000 00000000 00002000 1030a010
r28-31  00000500 00000000 100646c0 10255d20
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10255ed8 10255edc
 IIR: 0e742088    ISR: 00000000  IOR: 0000001c
 CPU:        0   CR30: 10064000 CR31: 10359000
 ORIG_R28: 00000020
 IAOQ[0]: cfb_imageblit+0x248/0x55c
 IAOQ[1]: cfb_imageblit+0x24c/0x55c
 RP(r2): putcs_aligned+0x18c/0x21c

--Boundary-00=_pXwWBRBPUSNsQsv--



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Xref: news.gmane.org gmane.linux.ports.parisc:24954


Hello jda,
> 
> > All failed because:
> > /mnt/palin/Develop/parisc-linux/build/binutils/ld/ld-new: warning: =3D=

> > ld.so.1,
> > needed by /lib/libc.so.6, not found (try using -rpath or -rpath-link)=

> > 
> > even thought the cmds of the form:
> > /mnt/palin/Develop/parisc-linux/build/binutils/ld/ld-new -m hppalinux=


> =3D
> > -o
> > tmpdir/ld1 -dynamic-linker /lib/ld.so.1 ...
> 
> Do you have LD_LIBRARY_PATH library path set to something wierd?
> I can't duplicate this with LD_LIBRARY_PATH unset or to my normal
> setting.  What do you see when you enter `ldd /lib/libc.so.6'?
> 
root@patst006:~ # echo $LD_LIBRARY_PATH

root@patst006:~ # ldd /lib/libc.so.6 
        /lib/ld.so.1 =3D> /lib/ld.so.1 (0x41328000)

(and I didn't find any other libc.so.6)

That said I read back <http://mirror.vtx.ch/lfs/lfs/view/testing/chapter0=
5/binutils-pass1.html>
and I notice this step:
"make -C ld LDFLAGS=3D"-all-static" LIB_PATH=3D/tools/lib"

which, according to comments:
" -C ld LDFLAGS=3D"-all-static" LIB_PATH=3D/tools/lib

    This option rebuilds everything in the ld subdirectory. Specifying th=
e
LIB_PATH Makefile variable on the command line allows us to override the
default value and point it to the temporary tools location. The value of
this variable specifies the linker's default library search path. This pr=
eparation
is used later in the chapter.
"
And so I would had to prefer to make the check before completing this ste=
p?

Thanks,
    Joel



-------------------------------------------------------------------------=
--
Tiscali ADSL GO, 29,50 Euro/mois pendant toute une ann=E9e, profitez-en..=
.
http://reg.tiscali.be/adsl/welcome.asp?lg=3DFR




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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [PATCH] Sort generic PCI fixups after specific ones
Date: Thu, 30 Sep 2004 18:41:55 +0100
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References: <20040922214304.GS16153@parcelfarce.linux.theplanet.co.uk> <20040923172038.GA8812@kroah.com> <20040923173151.GX16153@parcelfarce.linux.theplanet.co.uk> <20040924023357.A2526@jurassic.park.msu.ru>
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Cc: Matthew Wilcox <matthew@wil.cx>,
 Greg KH <greg@kroah.com>,
 Linus Torvalds <torvalds@osdl.org>,
 Andrew Morton <akpm@zip.com.au>,
 linux-kernel@vger.kernel.org,
 linux-pci@atrey.karlin.mff.cuni.cz,
 parisc-linux@parisc-linux.org
To: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
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Xref: news.gmane.org gmane.linux.ports.parisc:24955

On Fri, Sep 24, 2004 at 02:33:57AM +0400, Ivan Kokshaysky wrote:
> I believe we do need third level of fixups, specifically for devices like
> IDE which can change the PCI header contents (class code, BAR layout etc.)
> depending on some magic bits in their registers.
> Such "early" or "pre-header" fixups should be called right after the device
> discovery, before probing the BARs. Apparently pci_setup_device()
> is a proper place for that.

OK, fine.

Allow prioritising PCI fixups.  "How it works" is covered in the comment
in pci.h.  The patch to superio.c may well only apply with fuzz to the
current Linux tree; I include it only to show an example.

Index: linux-2.6/drivers/parisc/superio.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/superio.c,v
retrieving revision 1.11
diff -u -p -r1.11 superio.c
--- linux-2.6/drivers/parisc/superio.c	28 Sep 2004 17:07:01 -0000	1.11
+++ linux-2.6/drivers/parisc/superio.c	30 Sep 2004 17:36:34 -0000
@@ -481,7 +481,7 @@ void superio_fixup_pci(struct pci_dev *p
 	pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
 	printk("PCI: Enabled native mode for NS87415 (pif=0x%x)\n", prog);
 }
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, superio_fixup_pci);
+DECLARE_PCI_FIXUP_HEADER_PRI(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, superio_fixup_pci, 1);
 
 
 static int __devinit superio_probe(struct pci_dev *dev, const struct pci_device_id *id)
Index: linux-2.6/include/asm-generic/vmlinux.lds.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-generic/vmlinux.lds.h,v
retrieving revision 1.4
diff -u -p -r1.4 vmlinux.lds.h
--- linux-2.6/include/asm-generic/vmlinux.lds.h	13 Sep 2004 15:24:02 -0000	1.4
+++ linux-2.6/include/asm-generic/vmlinux.lds.h	30 Sep 2004 17:36:35 -0000
@@ -19,10 +19,14 @@
 	/* PCI quirks */						\
 	.pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {	\
 		VMLINUX_SYMBOL(__start_pci_fixups_header) = .;		\
-		*(.pci_fixup_header)					\
+		*(.pci_fixup_header1)					\
+		*(.pci_fixup_header2)					\
+		*(.pci_fixup_header3)					\
 		VMLINUX_SYMBOL(__end_pci_fixups_header) = .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_final) = .;		\
-		*(.pci_fixup_final)					\
+		*(.pci_fixup_final1)					\
+		*(.pci_fixup_final2)					\
+		*(.pci_fixup_final3)					\
 		VMLINUX_SYMBOL(__end_pci_fixups_final) = .;		\
 	}								\
 									\
Index: linux-2.6/include/linux/pci.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/linux/pci.h,v
retrieving revision 1.18
diff -u -p -r1.18 pci.h
--- linux-2.6/include/linux/pci.h	13 Sep 2004 15:24:12 -0000	1.18
+++ linux-2.6/include/linux/pci.h	30 Sep 2004 17:36:36 -0000
@@ -1010,16 +1010,29 @@ enum pci_fixup_pass {
 	pci_fixup_final,	/* Final phase of device fixups */
 };
 
-/* Anonymous variables would be nice... */
-#define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook)					\
-	static struct pci_fixup __pci_fixup_##vendor##device##hook __attribute_used__	\
-	__attribute__((__section__(".pci_fixup_header"))) = {				\
-		vendor, device, hook };
-
-#define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook)				\
-	static struct pci_fixup __pci_fixup_##vendor##device##hook __attribute_used__	\
-	__attribute__((__section__(".pci_fixup_final"))) = {				\
+/*
+ * Most fixups should be declared as DECLARE_PCI_FIXUP_HEADER() or
+ * DECLARE_PCI_FIXUP_FINAL().  If you need to ensure ordering, you can
+ * specify a priority.  Current available priorities are 1, 2 (the default)
+ * and 3.  If you need to add more priorities, see
+ * include/asm-generic/vmlinux.lds.h
+ */
+#define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook)	\
+	static struct pci_fixup __pci_fixup_##name			\
+	__attribute_used__ __attribute__((__section__( #section ))) = {	\
 		vendor, device, hook };
+#define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook)			\
+	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header2,			\
+			vendor##device##hook, vendor, device, hook)
+#define DECLARE_PCI_FIXUP_HEADER_PRI(vendor, device, hook, pri)		\
+	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header##pri,		\
+			vendor##device##hook, vendor, device, hook)
+#define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook)			\
+	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final2,			\
+			vendor##device##hook, vendor, device, hook)
+#define DECLARE_PCI_FIXUP_FINAL_PRI(vendor, device, hook, pri)		\
+	DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final##pri,		\
+			vendor##device##hook, vendor, device, hook)
 
 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev);
 

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain

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Xref: news.gmane.org gmane.linux.ports.parisc:24956

When developing palo I needed to press TOC a lot and got tired of
fishing for a tool.  Here's a drawing of how I use tape and a pin on
C3000 which would work on other boxes too.  Might be handy for other
folks who like to crash their boxes a lot :-)

http://parisc-linux.org/~bame/tocmod.png
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From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
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Subject: Re: [PATCH] Sort generic PCI fixups after specific ones
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Cc: Greg KH <greg@kroah.com>,
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 linux-kernel@vger.kernel.org,
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On Thu, Sep 30, 2004 at 06:41:55PM +0100, Matthew Wilcox wrote:
> Allow prioritising PCI fixups.  "How it works" is covered in the comment
> in pci.h.  The patch to superio.c may well only apply with fuzz to the
> current Linux tree; I include it only to show an example.

No, you missed my point.
What we need is yet another PCI fixup *pass*, not prioritizing fixups
inside *one* pass - see appended patch (compile tested only).
Speaking of IDE: generally, you cannot switch PCI IDE controller
from "compatible" to native mode in the "fixup header" pass, as at this
point PCI BARs are *already* probed, and in compatible mode a lot of IDE
controllers have some bogus (often read-only) values in the BARs 0-3.
That's why quirk_ide_bases() fixup exists in the first place.
So that parisc superio fix works by mere luck - probably because IDE
BARs 0-3 are readable/writable even in legacy mode on this particular
controller.

Ivan.

--- 2.6/include/asm-generic/vmlinux.lds.h	Mon Sep 27 14:38:14 2004
+++ linux/include/asm-generic/vmlinux.lds.h	Fri Oct  1 15:24:30 2004
@@ -18,6 +18,9 @@
 									\
 	/* PCI quirks */						\
 	.pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {	\
+		VMLINUX_SYMBOL(__start_pci_fixups_early) = .;		\
+		*(.pci_fixup_early)					\
+		VMLINUX_SYMBOL(__end_pci_fixups_early) = .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_header) = .;		\
 		*(.pci_fixup_header)					\
 		VMLINUX_SYMBOL(__end_pci_fixups_header) = .;		\
--- 2.6/include/linux/pci.h	Mon Sep 27 14:38:23 2004
+++ linux/include/linux/pci.h	Fri Oct  1 16:16:51 2004
@@ -1006,20 +1006,29 @@ struct pci_fixup {
 };
 
 enum pci_fixup_pass {
-	pci_fixup_header,	/* Called immediately after reading configuration header */
+	pci_fixup_early,	/* Called immediately after reading
+				   device/vendor IDs and class code */
+	pci_fixup_header,	/* Called after reading the entire
+				   configuration header (including BARs) */
 	pci_fixup_final,	/* Final phase of device fixups */
 };
 
 /* Anonymous variables would be nice... */
-#define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook)					\
-	static struct pci_fixup __pci_fixup_##vendor##device##hook __attribute_used__	\
-	__attribute__((__section__(".pci_fixup_header"))) = {				\
-		vendor, device, hook };
+#define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook)	\
+	static struct pci_fixup __pci_fixup_##name __attribute_used__	\
+	__attribute__((__section__( #section ))) = { vendor, device, hook };
 
-#define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook)				\
-	static struct pci_fixup __pci_fixup_##vendor##device##hook __attribute_used__	\
-	__attribute__((__section__(".pci_fixup_final"))) = {				\
-		vendor, device, hook };
+#define DECLARE_PCI_FIXUP_EARLY(vendor, device, hook)			\
+	 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early,			\
+			vendor##device##hook, vendor, device, hook)
+
+#define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook)			\
+	 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header,			\
+			vendor##device##hook, vendor, device, hook)
+
+#define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook)			\
+	 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final,			\
+			vendor##device##hook, vendor, device, hook)
 
 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev);
 
--- 2.6/drivers/pci/quirks.c	Mon Sep 27 14:37:45 2004
+++ linux/drivers/pci/quirks.c	Fri Oct  1 16:24:16 2004
@@ -999,6 +999,8 @@ static void pci_do_fixups(struct pci_dev
 	}
 }
 
+extern struct pci_fixup __start_pci_fixups_early[];
+extern struct pci_fixup __end_pci_fixups_early[];
 extern struct pci_fixup __start_pci_fixups_header[];
 extern struct pci_fixup __end_pci_fixups_header[];
 extern struct pci_fixup __start_pci_fixups_final[];
@@ -1009,6 +1011,11 @@ void pci_fixup_device(enum pci_fixup_pas
 	struct pci_fixup *start, *end;
 
 	switch(pass) {
+	case pci_fixup_early:
+		start = __start_pci_fixups_early;
+		end = __end_pci_fixups_early;
+		break;
+
 	case pci_fixup_header:
 		start = __start_pci_fixups_header;
 		end = __end_pci_fixups_header;
--- 2.6/drivers/pci/probe.c	Mon Sep 27 14:37:45 2004
+++ linux/drivers/pci/probe.c	Fri Oct  1 15:30:00 2004
@@ -475,6 +475,9 @@ static int pci_setup_device(struct pci_d
 	/* "Unknown power state" */
 	dev->current_state = 4;
 
+	/* Early fixups, before probing the BARs */
+	pci_fixup_device(pci_fixup_early, dev);
+
 	switch (dev->hdr_type) {		    /* header type */
 	case PCI_HEADER_TYPE_NORMAL:		    /* standard header */
 		if (class == PCI_CLASS_BRIDGE_PCI)
--- 2.6/drivers/parisc/superio.c	Mon Sep 27 14:37:45 2004
+++ linux/drivers/parisc/superio.c	Fri Oct  1 15:32:20 2004
@@ -484,7 +484,7 @@ void superio_fixup_pci(struct pci_dev *p
 	pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
 	printk("PCI: Enabled native mode for NS87415 (pif=0x%x)\n", prog);
 }
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, superio_fixup_pci);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, superio_fixup_pci);
 
 /* Because of a defect in Super I/O, all reads of the PCI DMA status 
  * registers, IDE status register and the IDE select register need to be 

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Paul Bame wrote:
> When developing palo I needed to press TOC a lot and got tired of
> fishing for a tool.  Here's a drawing of how I use tape and a pin on
> C3000 which would work on other boxes too.  Might be handy for other
> folks who like to crash their boxes a lot :-)
> 
> http://parisc-linux.org/~bame/tocmod.png

:-)

Btw grub2 seems to be more open to other arch :-) (ppc already included)
Do you think it would be possible to add our parisc?
(in a first step the idea was: use ipl to load what was stage2 in grub)

TIA for advise,
	Joel
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On Sat, Oct 02, 2004 at 04:26:02PM +0000, Joel Soete wrote:
> Btw grub2 seems to be more open to other arch :-) (ppc already included)
> Do you think it would be possible to add our parisc?

Possibly? Yeah, sure. But what's wrong with palo?

grant
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Sorry but I would add some more info:

> 
> >
> > On Fri, Oct 01, 2004 at 04:12:54PM +0100, Matthew Wilcox wrote:
> > > On Fri, Oct 01, 2004 at 05:10:32PM +0200, Joel Soete wrote:
> > > > ../sysdeps/unix/sysv/linux/waitid.c: In function `do_waitid':
> > > > ../sysdeps/unix/sysv/linux/waitid.c:50: error: `NULL' undeclared
(first
> > > > use in this function)
> > > > ../sysdeps/unix/sysv/linux/waitid.c:50: error: (Each undeclared
identifier
> > > > is reported only once
> > > > ../sysdeps/unix/sysv/linux/waitid.c:50: error: for each function
it
> appears
> > > > in.)
> > >
> > > I believe NULL is defined in <stddef.h>
> >
> > Bug upstream. Testing fix.
> >
> I find this stuff in posix/waitpid:
> --- sysdeps/unix/sysv/linux/waitid.c.orig	2004-10-04 19:15:31.615954017=

> +0200
> +++ sysdeps/unix/sysv/linux/waitid.c	2004-10-04 18:07:03.000000000 +020=
0
> @@ -21,6 +21,8 @@
>  #include <sys/wait.h>
>  #include <kernel-features.h>
>  #include <sysdep.h>
> +#define __need_NULL
> +#include <stddef.h>
> 
>  #ifdef __NR_waitid
> 
> =3D=3D=3D=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D=3D=3D=3D
> 
> That did the trick but not sure it's a fix?
> 
> What do you think?
> 
> Joel
> 
> PS: I didn't reach to complete the today cvs build ...

Well for remind that was cvs 2004-10-04 and it failed to build :((
"hppa-linux-gcc -nostdlib -nostartfiles -o /Develop/parisc-linux/build/gl=
ibc/nscd/nscd
 -Wl,-dynamic-linker=3D/lib/ld.so.1     /Develop/parisc-linux/build/glibc=
/csu/crt1.o
/Develop/parisc-linux/build/glibc/csu/crti.o `hppa-linux-gcc --print-file=
-name=3Dcrtbegin.o`
/Develop/parisc-linux/build/glibc/nscd/nscd.o /Develop/parisc-linux/build=
/glibc/nscd/connections.o
/Develop/parisc-linux/build/glibc/nscd/pwdcache.o /Develop/parisc-linux/b=
uild/glibc/nscd/getpwnam_r.o
/Develop/parisc-linux/build/glibc/nscd/getpwuid_r.o /Develop/parisc-linux=
/build/glibc/nscd/grpcache.o
/Develop/parisc-linux/build/glibc/nscd/getgrnam_r.o /Develop/parisc-linux=
/build/glibc/nscd/getgrgid_r.o
/Develop/parisc-linux/build/glibc/nscd/hstcache.o /Develop/parisc-linux/b=
uild/glibc/nscd/gethstbyad_r.o
/Develop/parisc-linux/build/glibc/nscd/gethstbynm2_r.o /Develop/parisc-li=
nux/build/glibc/nscd/dbg_log.o
/Develop/parisc-linux/build/glibc/nscd/nscd_conf.o /Develop/parisc-linux/=
build/glibc/nscd/nscd_stat.o
/Develop/parisc-linux/build/glibc/nscd/cache.o /Develop/parisc-linux/buil=
d/glibc/nscd/mem.o
/Develop/parisc-linux/build/glibc/nscd/nscd_setup_thread.o /Develop/paris=
c-linux/build/glibc/nscd/xmalloc.o
/Develop/parisc-linux/build/glibc/nscd/xstrdup.o /Develop/parisc-linux/bu=
ild/glibc/nscd/aicache.o
/Develop/parisc-linux/build/glibc/nscd/initgrcache.o /Develop/parisc-linu=
x/build/glibc/rt/librt.so
/Develop/parisc-linux/build/glibc/linuxthreads/libpthread_nonshared.a /De=
velop/parisc-linux/build/glibc/linuxthreads/libpthread.so
/Develop/parisc-linux/build/glibc/nis/libnsl.so  -Wl,-rpath-link=3D/Devel=
op/parisc-linux/build/glibc:/Develop/parisc-linux/build/glibc/math:/Devel=
op/parisc-linux/build/glibc/elf:/Develop/parisc-linux/build/glibc/dlfcn:/=
Develop/parisc-linux/build/glibc/nss:/Develop/parisc-linux/build/glibc/ni=
s:/Develop/parisc-linux/build/glibc/rt:/Develop/parisc-linux/build/glibc/=
resolv:/Develop/parisc-linux/build/glibc/crypt:/Develop/parisc-linux/buil=
d/glibc/linuxthreads
/Develop/parisc-linux/build/glibc/libc.so.6 /Develop/parisc-linux/build/g=
libc/libc_nonshared.a
-lgcc `hppa-linux-gcc --print-file-name=3Dcrtend.o` /Develop/parisc-linux=
/build/glibc/csu/crtn.o
/Develop/parisc-linux/build/glibc/nscd/connections.o(.text+0x2550): In fu=
nction
`start_threads':
/Develop/parisc-linux/sources/glibc-2.3.3-hppa-20041004/nscd/connections.=
c:1507:
undefined reference to `pthread_condattr_setclock'
collect2: ld returned 1 exit status
make[2]: *** [/Develop/parisc-linux/build/glibc/nscd/nscd] Error 1
make[2]: Leaving directory `/Develop/parisc-linux/sources/glibc-2.3.3-hpp=
a-20041004/nscd'
make[1]: *** [nscd/others] Error 2
make[1]: Leaving directory `/Develop/parisc-linux/sources/glibc-2.3.3-hpp=
a-20041004'
make: *** [all] Error 2
"

a consequence of:
hppa-linux-gcc connections.c -c -std=3Dgnu99 -O2 -Wall -Winline -Wstrict-=
prototypes
-Wwrite-strings -g   -DHAVE_EPOLL   -I../include -I. -I/Develop/parisc-li=
nux/build/glibc/nscd
-I.. -I../libio  -I/Develop/parisc-linux/build/glibc -I../sysdeps/hppa/el=
f
-I../linuxthreads/sysdeps/unix/sysv/linux/hppa -I../linuxthreads/sysdeps/=
unix/sysv/linux
-I../linuxthreads/sysdeps/pthread -I../sysdeps/pthread -I../linuxthreads/=
sysdeps/unix/sysv
-I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/hppa -I../sysdep=
s/unix/sysv/linux/hppa
-I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common -I=
.../sysdeps/unix/mman
-I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix -I../sysd=
eps/posix
-I../sysdeps/hppa/hppa1.1 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/f=
lt-32
-I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/ldbl-128 -I../sysdeps/hp=
pa/fpu
-I../sysdeps/hppa -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysd=
eps/generic
-nostdinc -isystem /usr/lib/gcc-lib/hppa-linux/3.3.4/include -isystem /De=
velop/parisc-linux/sources/linux/include
-D_LIBC_REENTRANT -include ../include/libc-symbols.h   -DNOT_IN_libc=3D1 =

  -o /Develop/parisc-linux/build/glibc/nscd/connections.o -MD -MP -MF /De=
velop/parisc-linux/build/glibc/nscd/connections.o.dt
-MT /Develop/parisc-linux/build/glibc/nscd/connections.o
connections.c: In function `start_threads':
connections.c:1462: warning: implicit declaration of function `pthread_co=
ndattr_setclock'

And pthread_condattr_setclock afaik is only in nptl while am i going to
build with linuxthreads only:
the configure cmdline being "../../sources/glibc/configure --target=3Dhpp=
a-linux
--host=3Dhppa-linux --build=3Dhppa-linux --prefix=3D/usr --without-cvs --=
enable-hacker-mode
--enable-add-ons=3Dlinuxthreads --enable-profile --with-headers=3D/Develo=
p/parisc-linux/sources/linux/include"

Any idea?

Thanks,
    Joel
 

-------------------------------------------------------------------------=
--
Tiscali ADSL GO, 29,50 Euro/mois pendant toute une ann=E9e, profitez-en..=
..
http://reg.tiscali.be/adsl/welcome.asp?lg=3DFR




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Subject: Re: [PATCH] Sort generic PCI fixups after specific ones
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Cc: Matthew Wilcox <matthew@wil.cx>,
 Greg KH <greg@kroah.com>,
 Linus Torvalds <torvalds@osdl.org>,
 Andrew Morton <akpm@zip.com.au>,
 linux-kernel@vger.kernel.org,
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To: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
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On Sat, Oct 02, 2004 at 01:48:17AM +0400, Ivan Kokshaysky wrote:
> On Thu, Sep 30, 2004 at 06:41:55PM +0100, Matthew Wilcox wrote:
> > Allow prioritising PCI fixups.  "How it works" is covered in the comment
> > in pci.h.  The patch to superio.c may well only apply with fuzz to the
> > current Linux tree; I include it only to show an example.
> 
> No, you missed my point.
> What we need is yet another PCI fixup *pass*, not prioritizing fixups
> inside *one* pass - see appended patch (compile tested only).

Boot tested.  Works fine for my problem child.  Greg, can you apply
Ivan's patch, please?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain

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Subject: [parisc-linux] Re: hppa glibc 2.3.3
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On Tue, Oct 05, 2004 at 08:47:56AM -0500, Elliott Potter wrote:
> > This was a bug fixed upstream, where the nscd thread daemon was using
> > NPTL related syscalls when it shouldn't. Pull cvs again and that should
> > fit the problem.
> 
> Just an update, this seemed to work just fine.  I'm going to play with
> it a bit in my chroot environment and see how it works.

Perfect. I'm working on a variant where I've forward ported the debian
specific patches into upstream head.

Please report back if you have any problems, or if you have success :)

e.g. Try installing Xnest + gnome, and run some stuff remotely?

c.

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Subject: [parisc-linux] kernel BUG at mm/slab.c:1889
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Xref: news.gmane.org gmane.linux.ports.parisc:24963

Hello pa-*,

Building latest glibc cvs over an nfs the system halted with following ms=
g:

kernel BUG at mm/slab.c:1889!
Backtrace:
 [<0000000010114748>] dump_stack+0x20/0x38
 [<000000001017ea80>] cache_free_debugcheck+0x3d0/0x438
 [<000000001017fdb0>] kmem_cache_free+0x50/0x130
 [<00000000101c2f24>] d_callback+0x64/0x80
 [<000000001016048c>] rcu_do_batch+0x54/0xf8
 [<0000000010160774>] __rcu_process_callbacks+0x94/0x148
 [<0000000010160870>] rcu_process_callbacks+0x48/0x98
 [<000000001014f31c>] tasklet_action+0xec/0x140
 [<000000001014ee14>] __do_softirq+0x7c/0x128
 [<000000001010f920>] __lock_text_end+0x68/0x78
 [<0000000010116634>] do_irq+0x14c/0x1a0
 [<0000000010116768>] do_cpu_irq_mask+0xe0/0x150
 [<0000000010107074>] intr_return+0x0/0x14
 [<000000001010d18c>] __udivdi3+0x1c/0x30
 [<00000000101423e4>] effective_prio+0x8c/0xc0
 [<00000000101bbfd0>] locate_fd+0x130/0x1d0

Here are some additional info:
kernel 2.6.9-rc3-pa3 64bit +DEBUG_SLAB (lastest cvs 2004-10-05) (+I K sup=
erio
patch)
# hppa64-linux-a -v
hppa64-linux-addr2line  hppa64-linux-ar         hppa64-linux-as        

# hppa64-linux-as -v
GNU assembler version 2.14.90 (hppa64-linux) using BFD version 2.14.90 20=
040204

System model: b2000 

mmm 32bit (same kernel src) just panic (more quickly then 64bit :( ):

 [<10348c1c>] xprt_transmit+0xec/0x518
 [<10346898>] call_transmit+0x5c/0xbc
 [<1034abc8>] __rpc_execute+0x344/0x444


Kernel Fault: Code=3D15 regs=3D1c050ac0 (Addr=3D593f3c9e)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 103e7094 1014c7b0 00000000
r04-07  593f3c9e 00000800 00000000 000007ff
r08-11  593f3c9a 1050eb00 10362000 1b4b5298
r12-15  1c593830 00000000 000005dc 1ccb1bf0
r16-19  00000014 00000000 000005dc 00052c00
r20-23  00000001 1073109c 00000003 102e6958
r24-27  593f3c9a 593f3c9a 1050eb00 103c5010
r28-31  00000800 17013b6c 1c050ac0 1147e000
sr0-3   00000000 00000000 00000000 000008ca
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1014c7c4 1014c7c8
 IIR: 0c830013    ISR: 00000000  IOR: 593f3c9e
 CPU:        0   CR30: 1c050000 CR31: 10494000
 ORIG_R28: 00000000
 IAOQ[0]: check_poison_obj+0x54/0x230
 IAOQ[1]: check_poison_obj+0x58/0x230
 RP(r2): check_poison_obj+0x40/0x230
Kernel panic - not syncing: Kernel Fault

# gcc -v
gcc version 3.3.4 (Debian 1:3.3.4-13)
# as -v
GNU assembler version 2.15 (hppa-linux) using BFD version 2.15

This last one seems much more related to nfs?

Joel

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On Thu, Oct 07, 2004 at 01:56:09PM +0200, Joel Soete wrote:
> Since the Oct 1, I try desperately to complete the glibc cvs build but without
> success:

a. Build an 'unstable' chroot. Enter the chroot.
b. apt-get build-dep glibc
c. Pull down glibc cvs head.
d. Apply the latest hppa patch set.
e. Build glibc.

I suggest the chroot method because it seems that you might have
problems with your environment. In particular I always try a chroot
build if something seems funny.

Cheers,
Carlos.


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> -- Original Message --
> Date: Thu, 7 Oct 2004 11:29:00 -0400
> From: Carlos O'Donell <carlos@baldric.uwo.ca>
> To: Joel Soete <soete.joel@tiscali.be>
> Cc: parisc-linux@parisc-linux.org
> Subject: Re: [parisc-linux] Re: hppa glibc 2.3.3
> 
> 
> On Thu, Oct 07, 2004 at 01:56:09PM +0200, Joel Soete wrote:
> > Since the Oct 1, I try desperately to complete the glibc cvs build bu=
t
> without
> > success:
> 
> a. Build an 'unstable' chroot. Enter the chroot.
> b. apt-get build-dep glibc
> c. Pull down glibc cvs head.
> d. Apply the latest hppa patch set.
> e. Build glibc.
> 
> I suggest the chroot method because it seems that you might have
> problems with your environment. In particular I always try a chroot
> build if something seems funny.
> 
> Cheers,
> Carlos.
> 
mmm good idea but with exactely the same env (ie same binutils, same gcc,=

same kernel, same nfs server and client) I reach to build glibc cvs 2004
09 30 + your patch with same index (even complet test) without pb but for=

later cvs (ie 2004 10 0[1234567] it failed.

Fwiw I check and configure script: no change?
Is there some include file which could change its behaviour?

That said, I can force ranlib with --enable-ranlib but unfortunately the
build  just failed:(
I try to have a look in precompiled elf/rtld.i but I didn't yet find wher=
e
errno is requested in set_dp?
(ooh iirc something was changed regarfing __errno in upstream:
<http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/include/errno.h.diff?c=
vsroot=3Dglibc&only_with_tag=3Dfedora-branch&r1=3D1.11&r2=3D1.11.2.1>
i.e.:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /cvs/glibc/libc/include/errno.h,v
retrieving revision 1.11
retrieving revision 1.11.2.1
diff -u -r1.11 -r1.11.2.1
--- libc/include/errno.h	2002/12/31 20:33:33	1.11
+++ libc/include/errno.h	2004/10/05 08:25:13	1.11.2.1
@@ -14,8 +14,8 @@
    so a single (hidden) global variable is all it needs.  */
 
 #  undef  errno
-#  define errno errno		/* For #ifndef errno tests.  */
-extern int errno attribute_hidden;
+#  define errno rtld_errno
+extern int rtld_errno attribute_hidden;

=3D=3D=3D=3D=3D=3D=3D
So certainly where I have to check?

Thanks,
    Joel


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Carlos, 

I need more help
> <http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/include/errno.h.diff=
?cvsroot=3Dglibc&only_with_tag=3Dfedora-branch&r1=3D1.11&r2=3D1.11.2.1>
> i.e.:
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> RCS file: /cvs/glibc/libc/include/errno.h,v
> retrieving revision 1.11
> retrieving revision 1.11.2.1
> diff -u -r1.11 -r1.11.2.1
> --- libc/include/errno.h	2002/12/31 20:33:33	1.11
> +++ libc/include/errno.h	2004/10/05 08:25:13	1.11.2.1
> @@ -14,8 +14,8 @@
>     so a single (hidden) global variable is all it needs.  */
> 
>  #  undef  errno
> -#  define errno errno		/* For #ifndef errno tests.  */
> -extern int errno attribute_hidden;
> +#  define errno rtld_errno
> +extern int rtld_errno attribute_hidden;
> 
> =3D=3D=3D=3D=3D=3D=3D
> So certainly where I have to check?
> 
I look forward and encounter:
<http://sources.redhat.com/ml/glibc-cvs/2004-q4/msg00074.html>

It seems an evidence to just change errno to rtld_errno symbol for those
other arch but for hppa I realy didn't encounter this variable name, what=

did I missed (certanly a macro but which one?)

Thanks again,
    Joel


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> -- Original Message --
> Date: Thu, 7 Oct 2004 18:39:40 -0400
> From: Carlos O'Donell <carlos@baldric.uwo.ca>
> To: Joel Soete <soete.joel@tiscali.be>
> Cc: parisc-linux@parisc-linux.org
> Subject: Re: [parisc-linux] Re: hppa glibc 2.3.3
>
>
> > I look forward and encounter:
> > <http://sources.redhat.com/ml/glibc-cvs/2004-q4/msg00074.html>
> >
> > It seems an evidence to just change errno to rtld_errno symbol for th=
ose
> > other arch but for hppa I realy didn't encounter this variable name,
what
> > did I missed (certanly a macro but which one?)
>
> Please please please, if you are going to quote other arches, read the
> code before commenting.
>
> i386 code is ancient and manipulates errno directly. We use the generic=

> code which is always kept up to date. Notice how alpha and ia64 didn't
> need to be fixed? Neither do we :)
>
Sorry to be so lazy (just a bit tired, appologies), here are the ref to
likewise modifications:
<http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/sysdeps/unix/sysv/linu=
x/ia64/sysdep.S.diff?cvsroot=3Dglibc&r1=3D1.8&r2=3D1.9>
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /cvs/glibc/libc/sysdeps/unix/sysv/linux/ia64/sysdep.S,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -r1.8 -r1.9
--- libc/sysdeps/unix/sysv/linux/ia64/sysdep.S	2004/05/04 16:46:06	1.8
+++ libc/sysdeps/unix/sysv/linux/ia64/sysdep.S	2004/10/04 20:59:36	1.9
@@ -30,7 +30,7 @@
 	 * be fine.  Otherwise, we would have to first load the global
 	 * pointer register from __gp.
 	 */
-	addl	r2=3D@gprel(errno),gp
+	addl	r2=3D@gprel(rtld_errno),gp
 	;;
 	st4	[r2]=3Dr8
 	mov	r8=3D-1
<http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/sysdeps/unix/alpha/sys=
dep.h.diff?cvsroot=3Dglibc&r1=3D1.25&r2=3D1.26>
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /cvs/glibc/libc/sysdeps/unix/alpha/sysdep.h,v
retrieving revision 1.25
retrieving revision 1.26
diff -u -r1.25 -r1.26
--- libc/sysdeps/unix/alpha/sysdep.h	2004/09/26 17:40:31	1.25
+++ libc/sysdeps/unix/alpha/sysdep.h	2004/10/04 20:59:38	1.26
@@ -82,7 +82,7 @@
 #if RTLD_PRIVATE_ERRNO
 # define SYSCALL_ERROR_LABEL	$syscall_error
 # define SYSCALL_ERROR_HANDLER			\
-	stl	v0, errno(gp)	!gprel;		\
+	stl	v0, rtld_errno(gp)	!gprel;	\
 	lda	v0, -1;				\
 	ret
 #elif defined(PIC)

pfff, 'thuth is out there' :)

Thanks for your attention,
    Joel


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> I look forward and encounter:
> <http://sources.redhat.com/ml/glibc-cvs/2004-q4/msg00074.html>
> 
> It seems an evidence to just change errno to rtld_errno symbol for those
> other arch but for hppa I realy didn't encounter this variable name, what
> did I missed (certanly a macro but which one?)

Please please please, if you are going to quote other arches, read the
code before commenting.

i386 code is ancient and manipulates errno directly. We use the generic
code which is always kept up to date. Notice how alpha and ia64 didn't
need to be fixed? Neither do we :)

c.

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Xref: news.gmane.org gmane.linux.ports.parisc:24969

On Fri, Oct 08, 2004 at 08:00:53AM +0200, Joel Soete wrote:
> Sorry to be so lazy (just a bit tired, appologies), here are the ref to
> pfff, 'thuth is out there' :)

The only problem might exist if __errno_location does not return the
proper address of rltd_errno when RTLD_PRIVATE_ERRNO is defined. It
should. If it doesn't then our definition of
SYSCALL_ERRNO_HANDLER should change in that situation (away from
DEFAULT_SYSCALL_ERROR_HANDLER which is set to __errno_location).

All we want is that SYSCALL_ERRNO_HANDLER act as a function that returns
the address of an int, into which we write the syscall error value.

Read the code in:

libc/sysdeps/generic/errno-loc.c
libc/sysdeps/generic/errno.c
libc/sysdeps/unix/sysv/linux/hppa/sysdep.h

The last file defines the syscall wrappers and their usage of
SYSCALL_ERRNO_HANDLER.

c.


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Subject: [patch] fix unterminated comment in asm-parisc/som.h
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The patch below fixes an unterminated comment in 
include/asm-parisc/som.h present in both 2.4 and 2.6 .

This bug was found using David A. Wheeler's 'SLOCCount'.


Signed-off-by: Adrian Bunk <bunk@stusta.de>

--- linux-2.6.9-rc3-mm3/include/asm-parisc/som.h.old	2004-10-08 14:38:44.000000000 +0200
+++ linux-2.6.9-rc3-mm3/include/asm-parisc/som.h	2004-10-08 14:39:10.000000000 +0200
@@ -5,4 +5,4 @@
 #include <linux/som.h>
 
 
-#endif /* _ASM_PARISC_SOM_H
+#endif /* _ASM_PARISC_SOM_H */

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From: Helge Deller <helge.deller@sap.com>
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Subject: [parisc-linux] lasi 53c700 problems
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Xref: news.gmane.org gmane.linux.ports.parisc:24971

I saw just some problems with lasi53c700 on my B180L:
Linux version 2.6.9-rc2-pa13 (root@ls3530) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #1 Fri Oct 8 13:02:32 CEST 2004

Attached devive is an external 2x SCSI CD writer which worked in other kernels without problems.

Any idea ?
Helge


scsi0 : sym-2.1.18k
Using anticipatory io scheduler
  Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:5:0: tagged command queuing enabled, command queue depth 16.
scsi(0:0:5:0): Beginning Domain Validation
sym0:5: wide asynchronous.
sym0:5: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
scsi(0:0:5:0): Domain Validation skipping write tests
scsi(0:0:5:0): Ending Domain Validation
  Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:6:0: tagged command queuing enabled, command queue depth 16.
scsi(0:0:6:0): Beginning Domain Validation
sym0:6: wide asynchronous.
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
scsi(0:0:6:0): Domain Validation skipping write tests
scsi(0:0:6:0): Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
scsi1 (4:0) New error handler wants to abort command
        scsi1 : destination target 4, lun 0
        command = 0x12 00 00 00 24 00
scsi1 (4:0) New error handler wants device reset
        scsi1 : destination target 4, lun 0
        command = 0x12 00 00 00 24 00
scsi1 (4:0) New error handler wants BUS reset, cmd 17c4cb60
        scsi1 : destination target 4, lun 0
        command = 0x12 00 00 00 24 00
scsi1: Bus Reset detected, executing command 17c4cb60, slot 00038520, dsp 07c78088[0088]
 failing command because of reset, slot 00038520, cmnd 17c4cb60
 1:0:4:0: Illegal state transition created->quiesce
Badness in scsi_device_set_state at drivers/scsi/scsi_lib.c:1688
Backtrace:
 [<10277360>] scsi_device_set_state+0xf0/0x164
 [<102773e8>] scsi_device_quiesce+0x14/0x64
 [<1027be84>] spi_dv_device+0x68/0x178
 [<1027bfac>] spi_dv_device_work_wrapper+0x18/0x38
 [<1013a8cc>] worker_thread+0x1ac/0x278
 [<1013f42c>] kthread+0xdc/0xe4
 [<1010ec5c>] ret_from_kernel_thread+0x1c/0x24

scsi1 (4:0) New error handler wants to abort command
        scsi1 : destination target 4, lun 0
        command = 0x00 00 00 00 00 00
scsi1: Bus Reset detected, executing command 17c4cb60, slot 00038520, dsp 07c78088[0088]
 failing command because of reset, slot 00038520, cmnd 17c4cb60
scsi1 (4:0) New error handler wants HOST reset
        scsi1 : destination target 4, lun 0
        command = 0x12 00 00 00 24 00
scsi1 (4:0) New error handler wants to abort command
        scsi1 : destination target 4, lun 0
        command = 0x00 00 00 00 00 00
scsi1: Bus Reset detected, executing command 17c4cb60, slot 00038520, dsp 07c78088[0088]
 failing command because of reset, slot 00038520, cmnd 17c4cb60
scsi: Device offlined - not ready after error recovery: host 1 channel 0 id 4 lun 0
st: Version 20040403, fixed bufsize 32768, s/g segs 256
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3
Attached scsi disk sda at scsi0, channel 0, id 5, lun 0
SCSI device sdb: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sdb: drive cache: write through
 sdb: sdb1 sdb2
Attached scsi disk sdb at scsi0, channel 0, id 6, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 5, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 6, lun 0,  type 0
ohci_hcd: 2004 Feb 02 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci_hcd: block sizes: ed 64 td 64
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
mice: PS/2 mouse device common for all mice
serio: GSC PS2 keyboard port at 0xffd08000 irq 69 @ parisc8:16:7
input: AT Raw Set 2 keyboard on parisc8:16:7
serio: GSC PS2 mouse port at 0xffd08100 irq 69 @ parisc8:16:8
input: PS/2 Logitech Mouse on parisc8:16:8
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Xref: news.gmane.org gmane.linux.ports.parisc:24972


 
> 
> I saw just some problems with lasi53c700 on my B180L:
> Linux version 2.6.9-rc2-pa13 (root@ls3530) (gcc version 3.3.4 (Debian
1:3.3.4-11))
> #1 Fri Oct 8 13:02:32 CEST 2004
> 
> Attached devive is an external 2x SCSI CD writer which worked in other
kernels
> without problems.
> 
> Any idea ?
> Helge
> 
> 
> scsi0 : sym-2.1.18k
> Using anticipatory io scheduler
>   Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> sym0:5:0: tagged command queuing enabled, command queue depth 16.
> scsi(0:0:5:0): Beginning Domain Validation
> sym0:5: wide asynchronous.
> sym0:5: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
> scsi(0:0:5:0): Domain Validation skipping write tests
> scsi(0:0:5:0): Ending Domain Validation
>   Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> sym0:6:0: tagged command queuing enabled, command queue depth 16.
> scsi(0:0:6:0): Beginning Domain Validation
> sym0:6: wide asynchronous.
> sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
> scsi(0:0:6:0): Domain Validation skipping write tests
> scsi(0:0:6:0): Ending Domain Validation
> 53c700: Version 2.8 By James.Bottomley@HansenPartnership.com

Hello Helge,

I have another kind of pb but also related to this driver on my c110 (and=

somebody else on debian-hppa list)
I tried 2 tips which seems to work, the ggg one seems to work better:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2004-September/0247=
42.html>

(btw I didn't reach to get any followup on this matter?)

hth,
    Joel

-------------------------------------------------------------------------=
--
Tiscali ADSL GO, 29,50 Euro/mois pendant toute une ann=E9e, profitez-en..=
..
http://reg.tiscali.be/adsl/welcome.asp?lg=3DFR




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Xref: news.gmane.org gmane.linux.ports.parisc:24973


This is advisory; I've already committed it to the parisc-linux tree and
I'll send this to James as part of the changes for 2.6.10 in a few days.
Anyone who wants to spot bugs in it is more than welcome ;-)

 - Bump version to 2.1.18m
 - Convert to new-style module parameters
 - Rename tags to cmd_per_lun (consistency!)
 - Split extended tags functionality into the new tag_ctrl parameter
 - Remove SYM_LINUX_BOOT_COMMAND_LINE_SUPPORT ifdef
 - Fix debug parameter support
 - Restructure sym_config_pqs() a little
 - Add myself as MODULE_AUTHOR
 - Add a MODULE_DESCRIPTION

Index: Documentation/scsi/sym53c8xx_2.txt
===================================================================
RCS file: /var/cvs/linux-2.6/Documentation/scsi/sym53c8xx_2.txt,v
retrieving revision 1.3
diff -u -p -r1.3 sym53c8xx_2.txt
--- Documentation/scsi/sym53c8xx_2.txt	28 Sep 2004 12:32:22 -0000	1.3
+++ Documentation/scsi/sym53c8xx_2.txt	10 Oct 2004 15:55:56 -0000
@@ -6,7 +6,7 @@ Written by Gerard Roudier <groudier@free
 
 Updated by Matthew Wilcox <matthew@wil.cx>
 
-2004-09-28
+2004-10-09
 ===============================================================================
 
 1.  Introduction
@@ -43,7 +43,7 @@ Updated by Matthew Wilcox <matthew@wil.c
              10.2.10 Settle delay
              10.2.11 Serial NVRAM
              10.2.12 Exclude a host from being attached
-      10.3 Serial NVRAM support boot option
+      10.3 Converting from old options
       10.4 SCSI BUS checking boot option
 11. SCSI problem troubleshooting
       15.1 Problem tracking
@@ -278,11 +278,10 @@ setting verbose level to zero, as follow
 6. Parity checking
 
 The driver supports SCSI parity checking and PCI bus master parity
-checking. These features must be enabled in order to ensure safe data
-transfers. However, some flawed devices or mother boards will have
-problems with parity. You can disable either PCI parity or SCSI parity 
-checking by entering appropriate options from the boot command line.
-(See 10: Boot setup commands).
+checking.  These features must be enabled in order to ensure safe
+data transfers.  Some flawed devices or mother boards may have problems
+with parity.  The options to defeat parity checking have been removed
+from the driver.
 
 7. Profiling information
 
@@ -427,75 +426,66 @@ Synchronous transfers frequency       (d
 
 10.1 Syntax
 
-Setup commands can be passed to the driver either at boot time or as a 
-string variable using 'insmod'.
-
-A boot setup command for this driver begins with the driver name "sym53c8xx=".
-The kernel syntax parser then expects an optionnal list of integers separated 
-with comma followed by an optional list of  comma-separated strings.
+Setup commands can be passed to the driver either at boot time or as
+parameters to modprobe, as described in Documentation/kernel-parameters.txt
 
 Example of boot setup command under lilo prompt:
 
-lilo: linux root=/dev/sda2 sym53c8xx=tags:4,sync:10,debug:0x200
+lilo: linux root=/dev/sda2 sym53c8xx.cmd_per_lun=4 sym53c8xx.sync=10 sym53c8xx.debug=0x200
 
 - enable tagged commands, up to 4 tagged commands queued.
 - set synchronous negotiation speed to 10 Mega-transfers / second.
 - set DEBUG_NEGO flag.
 
-Since comma seems not to be allowed when defining a string variable using  
-'insmod', the driver also accepts <space> as option separator. 
-The following command will install driver module with the same options as 
-above.
-
-    insmod sym53c8xx.o sym53c8xx="tags:4 sync:10 debug:0x200"
-
-The integer list of arguments is discarded by the driver. 
+The following command will install the driver module with the same
+options as above.
 
-Each string argument must be specified as "keyword:value". Only lower-case 
-characters and digits are allowed.
+    modprobe sym53c8xx cmd_per_lun=4 sync=10 debug=0x200"
 
 10.2 Available arguments
 
 10.2.1  Default number of tagged commands
-        tags:0     (or tags:1 ) tagged command queuing disabled
-        tags:#tags (#tags  > 1) tagged command queuing enabled
+        cmd_per_lun=0 (or cmd_per_lun=1) tagged command queuing disabled
+        cmd_per_lun=#tags (#tags > 1) tagged command queuing enabled
   #tags will be truncated to the max queued commands configuration parameter.
-  This option also allows to specify a command queue depth for each device 
-  that support tagged command queueing.
+
+10.2.2  Detailed control of tagged commands
+  This option allows you to specify a command queue depth for each device 
+  that supports tagged command queueing.
   Example:
-      sym53c8xx=tags:10/t2t3q16-t5q24/t1u2q32
-               will set devices queue depth as follow:
+      tag_ctrl=10/t2t3q16-t5q24/t1u2q32
+  will set devices queue depth as follow:
       - controller #0 target #2 and target #3                  -> 16 commands,
       - controller #0 target #5                                -> 24 commands,
       - controller #1 target #1 logical unit #2                -> 32 commands,
       - all other logical units (all targets, all controllers) -> 10 commands.
 
-10.2.2 Burst max
-        burst:0    burst disabled
-        burst:255  get burst length from initial IO register settings.
-        burst:#x   burst enabled (1<<#x burst transfers max)
+10.2.3 Burst max
+        burst=0    burst disabled
+        burst=255  get burst length from initial IO register settings.
+        burst=#x   burst enabled (1<<#x burst transfers max)
   #x is an integer value which is log base 2 of the burst transfers max.
   By default the driver uses the maximum value supported by the chip.
 
-10.2.3 LED support
-        led:1      enable  LED support
-        led:0      disable LED support
+10.2.4 LED support
+        led=1      enable  LED support
+        led=0      disable LED support
   Do not enable LED support if your scsi board does not use SDMS BIOS.
   (See 'Configuration parameters')
 
 10.2.4 Differential mode
-        diff:0	never set up diff mode
-        diff:1	set up diff mode if BIOS set it
-        diff:2	always set up diff mode
-        diff:3	set diff mode if GPIO3 is not set
+        diff=0	never set up diff mode
+        diff=1	set up diff mode if BIOS set it
+        diff=2	always set up diff mode
+        diff=3	set diff mode if GPIO3 is not set
 
 10.2.5 IRQ mode
-        irqm:0     always open drain
-        irqm:1     same as initial settings (assumed BIOS settings)
-        irqm:2     always totem pole
+        irqm=0     always open drain
+        irqm=1     same as initial settings (assumed BIOS settings)
+        irqm=2     always totem pole
 
 10.2.6 Check SCSI BUS 
-        buschk:<option bits>
+        buschk=<option bits>
 
     Available option bits:
         0x0:   No check.
@@ -503,8 +493,8 @@ characters and digits are allowed.
         0x2:   Check and just warn on error.
 
 10.2.7 Suggest a default SCSI id for hosts
-        hostid:255	no id suggested.
-        hostid:#x   (0 < x < 7) x suggested for hosts SCSI id.
+        hostid=255	no id suggested.
+        hostid=#x   (0 < x < 7) x suggested for hosts SCSI id.
 
     If a host SCSI id is available from the NVRAM, the driver will ignore 
     any value suggested as boot option. Otherwise, if a suggested value 
@@ -513,13 +503,13 @@ characters and digits are allowed.
     7 if the hardware value is zero.
 
 10.2.8  Verbosity level
-        verb:0     minimal
-        verb:1     normal
-        verb:2     too much
+        verb=0     minimal
+        verb=1     normal
+        verb=2     too much
 
 10.2.9 Debug mode
-        debug:0	 clear debug flags
-        debug:#x   set debug flags
+        debug=0	 clear debug flags
+        debug=#x   set debug flags
   #x is an integer value combining the following power-of-2 values:
   DEBUG_ALLOC       0x1
   DEBUG_PHASE       0x2
@@ -539,15 +529,16 @@ characters and digits are allowed.
   generate bunches of syslog messages. 
 
 10.2.10 Settle delay
-        settle:n	delay for n seconds
+        settle=n	delay for n seconds
 
   After a bus reset, the driver will delay for n seconds before talking
   to any device on the bus.  The default is 3 seconds and safe mode will
   default it to 10.
 
 10.2.11 Serial NVRAM
-        nvram:n     do not look for serial NVRAM
-        nvram:y     test controllers for onboard serial NVRAM
+	NB: option not currently implemented.
+        nvram=n     do not look for serial NVRAM
+        nvram=y     test controllers for onboard serial NVRAM
         (alternate binary form)
         nvram=<bits options>
         0x01   look for NVRAM  (equivalent to nvram=y)
@@ -557,62 +548,25 @@ characters and digits are allowed.
         0x80   also attach controllers set to OFF in the NVRAM (sym53c8xx only)
 
 10.2.12 Exclude a host from being attached
-        excl=<io_address>
+        excl=<io_address>,...
 
     Prevent host at a given io address from being attached.
-    For example 'sym53c8xx=excl:0xb400,excl:0xc000' indicate to the 
+    For example 'excl=0xb400,0xc000' indicate to the 
     driver not to attach hosts at address 0xb400 and 0xc000.
 
-10.3 Serial NVRAM support boot option
-
-nvram:n     do not look for serial NVRAM
-nvram:y     test controllers for onboard serial NVRAM
+10.3 Converting from old style options
 
-This option can also been entered as an hexadecimal value that allows 
-to control what information the driver will get from the NVRAM and what 
-information it will ignore.
-For details see '17. Serial NVRAM support'.
+Previously, the sym2 driver accepted arguments of the form
+	sym53c8xx=tags:4,sync:10,debug:0x200
 
-When this option is enabled, the driver tries to detect all boards using 
-a Serial NVRAM. This memory is used to hold user set up parameters.
+As a result of the new module parameters, this is no longer available.
+Most of the options have remained the same, but tags has split into
+cmd_per_lun and tag_ctrl for its two different purposes.  The sample above
+would be specified as:
+	modprobe sym53c8xx cmd_per_lun=4 sync=10 debug=0x200
 
-The parameters the driver is able to get from the NVRAM depend on the 
-data format used, as follow:
-
-                                 Tekram format      Symbios format
-General and host parameters
-    Boot order                         N                   Y
-    Host SCSI ID                       Y                   Y
-    SCSI parity checking               Y                   Y
-    Verbose boot messages              N                   Y
-SCSI devices parameters
-    Synchronous transfer speed         Y                   Y
-    Wide 16 / Narrow                   Y                   Y
-    Tagged Command Queuing enabled     Y                   Y
-    Disconnections enabled             Y                   Y
-    Scan at boot time                  N                   Y
-
-In order to speed up the system boot, for each device configured without 
-the "scan at boot time" option, the driver forces an error on the 
-first TEST UNIT READY command received for this device.
-
-Some SDMS BIOS revisions seem to be unable to boot cleanly with very fast 
-hard disks. In such a situation you cannot configure the NVRAM with 
-optimized parameters value.
-
-The 'nvram' boot option can be entered in hexadecimal form in order 
-to ignore some options configured in the NVRAM, as follow:
-
-nvram=<bits options>
-      0x01   look for NVRAM  (equivalent to nvram=y)
-      0x02   ignore NVRAM "Synchronous negotiation" parameters for all devices
-      0x04   ignore NVRAM "Wide negotiation"  parameter for all devices
-      0x08   ignore NVRAM "Scan at boot time" parameter for all devices
-      0x80   also attach controllers set to OFF in the NVRAM (sym53c8xx only)
-
-Option 0x80 is disabled by default.
-Result is that, by default (option not set), the sym53c8xx driver will not 
-attach controllers set to OFF in the NVRAM.
+or on the kernel boot line as:
+	sym53c8xx.cmd_per_lun=4 sym53c8xx.sync=10 sym53c8xx.debug=0x200
 
 10.4 SCSI BUS checking boot option.
 
@@ -747,14 +701,8 @@ serial NVRAM is used by Symbios and Tekr
 host adaptor and it's attached drives.
 
 The Symbios NVRAM also holds data on the boot order of host adaptors in a
-system with more than one host adaptor. This enables the order of scanning
-the cards for drives to be changed from the default used during host adaptor
-detection.
-
-This can be done to a limited extent at the moment using "reverse probe" but
-this only changes the order of detection of different types of cards. The
-NVRAM boot order settings can do this as well as change the order the same
-types of cards are scanned in, something "reverse probe" cannot do.
+system with more than one host adaptor.  This information is no longer used
+as it's fundamentally incompatible with the hotplug PCI model.
 
 Tekram boards using Symbios chips, DC390W/F/U, which have NVRAM are detected
 and this is used to distinguish between Symbios compatible and Tekram host 
@@ -765,6 +713,26 @@ used together with the Symbios cards usi
 "diff" support. ("led pin" support for Symbios compatible cards can remain
 enabled when using Tekram cards. It does nothing useful for Tekram host
 adaptors but does not cause problems either.)
+
+The parameters the driver is able to get from the NVRAM depend on the 
+data format used, as follow:
+
+                                 Tekram format      Symbios format
+General and host parameters
+    Boot order                         N                   Y
+    Host SCSI ID                       Y                   Y
+    SCSI parity checking               Y                   Y
+    Verbose boot messages              N                   Y
+SCSI devices parameters
+    Synchronous transfer speed         Y                   Y
+    Wide 16 / Narrow                   Y                   Y
+    Tagged Command Queuing enabled     Y                   Y
+    Disconnections enabled             Y                   Y
+    Scan at boot time                  N                   Y
+
+In order to speed up the system boot, for each device configured without 
+the "scan at boot time" option, the driver forces an error on the 
+first TEST UNIT READY command received for this device.
 
 
 17.2 Symbios NVRAM layout
Index: drivers/scsi/sym53c8xx_2/sym53c8xx.h
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/sym53c8xx_2/sym53c8xx.h,v
retrieving revision 1.12
diff -u -p -r1.12 sym53c8xx.h
--- drivers/scsi/sym53c8xx_2/sym53c8xx.h	28 Sep 2004 12:34:20 -0000	1.12
+++ drivers/scsi/sym53c8xx_2/sym53c8xx.h	10 Oct 2004 15:56:14 -0000
@@ -68,7 +68,6 @@
  */
 #if 1
 #define	SYM_LINUX_PROC_INFO_SUPPORT
-#define SYM_LINUX_BOOT_COMMAND_LINE_SUPPORT
 #define SYM_LINUX_USER_COMMAND_SUPPORT
 #define SYM_LINUX_USER_INFO_SUPPORT
 #define SYM_LINUX_DEBUG_CONTROL_SUPPORT
@@ -130,7 +129,6 @@ struct sym_driver_setup {
 	u_char	host_id;
 
 	u_char	verbose;
-	u_short	debug;
 	u_char	settle_delay;
 	u_char	use_nvram;
 	u_long	excludes[8];
@@ -144,6 +142,7 @@ struct sym_driver_setup {
 #define SYM_SETUP_IRQ_MODE		sym_driver_setup.irq_mode
 #define SYM_SETUP_SCSI_BUS_CHECK	sym_driver_setup.scsi_bus_check
 #define SYM_SETUP_HOST_ID		sym_driver_setup.host_id
+#define boot_verbose			sym_driver_setup.verbose
 
 /* Always enable parity. */
 #define SYM_SETUP_PCI_PARITY		1
@@ -163,51 +162,12 @@ struct sym_driver_setup {
 	.scsi_bus_check	= 1,					\
 	.host_id	= 7,					\
 	.verbose	= 0,					\
-	.debug		= 0,					\
 	.settle_delay	= 3,					\
 	.use_nvram	= 1,					\
 }
 
-/*
- *  Boot fail safe setup.
- *
- *  Override initial setup from boot command line:
- *    sym53c8xx=safe:y
- */
-#define SYM_LINUX_DRIVER_SAFE_SETUP {				\
-	.max_tag	= 0,					\
-	.burst_order	= 0,					\
-	.scsi_led	= 0,					\
-	.scsi_diff	= 1,					\
-	.irq_mode	= 0,					\
-	.scsi_bus_check	= 2,					\
-	.host_id	= 7,					\
-	.verbose	= 2,					\
-	.debug		= 0,					\
-	.settle_delay	= 10,					\
-	.use_nvram	= 1,					\
-}
-
-/*
- *  This structure is initialized from linux config options.
- *  It can be overridden at boot-up by the boot command line.
- */
-#ifdef SYM_GLUE_C
-struct sym_driver_setup
-	sym_driver_setup = SYM_LINUX_DRIVER_SETUP;
-#ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT
-u_int	sym_debug_flags = 0;
-#endif
-#else
 extern struct sym_driver_setup sym_driver_setup;
-#ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT
-extern u_int sym_debug_flags;
-#endif
-#endif /* SYM_GLUE_C */
-
-#ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT
+extern unsigned int sym_debug_flags;
 #define DEBUG_FLAGS	sym_debug_flags
-#endif
-#define boot_verbose	sym_driver_setup.verbose
 
 #endif /* SYM53C8XX_H */
Index: drivers/scsi/sym53c8xx_2/sym_defs.h
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/sym53c8xx_2/sym_defs.h,v
retrieving revision 1.5
diff -u -p -r1.5 sym_defs.h
--- drivers/scsi/sym53c8xx_2/sym_defs.h	13 Sep 2004 15:23:29 -0000	1.5
+++ drivers/scsi/sym53c8xx_2/sym_defs.h	10 Oct 2004 15:56:15 -0000
@@ -40,7 +40,7 @@
 #ifndef SYM_DEFS_H
 #define SYM_DEFS_H
 
-#define SYM_VERSION "2.1.18k"
+#define SYM_VERSION "2.1.18m"
 #define SYM_DRIVER_NAME	"sym-" SYM_VERSION
 
 /*
Index: drivers/scsi/sym53c8xx_2/sym_glue.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/sym53c8xx_2/sym_glue.c,v
retrieving revision 1.64
diff -u -p -r1.64 sym_glue.c
--- drivers/scsi/sym53c8xx_2/sym_glue.c	4 Oct 2004 22:23:07 -0000	1.64
+++ drivers/scsi/sym53c8xx_2/sym_glue.c	10 Oct 2004 15:56:16 -0000
@@ -37,12 +37,11 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
-#define SYM_GLUE_C
-
 #include <linux/ctype.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
+#include <linux/moduleparam.h>
 #include <linux/spinlock.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_tcq.h>
@@ -56,6 +55,77 @@
 #define NAME53C		"sym53c"
 #define NAME53C8XX	"sym53c8xx"
 
+struct sym_driver_setup sym_driver_setup = SYM_LINUX_DRIVER_SETUP;
+unsigned int sym_debug_flags = 0;
+
+static char *excl_string;
+static char *safe_string;
+module_param_named(cmd_per_lun, sym_driver_setup.max_tag, ushort, 0);
+module_param_string(tag_ctrl, sym_driver_setup.tag_ctrl, 100, 0);
+module_param_named(burst, sym_driver_setup.burst_order, byte, 0);
+module_param_named(led, sym_driver_setup.scsi_led, byte, 0);
+module_param_named(diff, sym_driver_setup.scsi_diff, byte, 0);
+module_param_named(irqm, sym_driver_setup.irq_mode, byte, 0);
+module_param_named(buschk, sym_driver_setup.scsi_bus_check, byte, 0);
+module_param_named(hostid, sym_driver_setup.host_id, byte, 0);
+module_param_named(verb, sym_driver_setup.verbose, byte, 0);
+module_param_named(debug, sym_debug_flags, uint, 0);
+module_param_named(settle, sym_driver_setup.settle_delay, byte, 0);
+module_param_named(nvram, sym_driver_setup.use_nvram, byte, 0);
+module_param_named(excl, excl_string, charp, 0);
+module_param_named(safe, safe_string, charp, 0);
+
+MODULE_PARM_DESC(cmd_per_lun, "The maximum number of tags to use by default");
+MODULE_PARM_DESC(tag_ctrl, "More detailed control over tags per LUN");
+MODULE_PARM_DESC(burst, "Maximum burst.  0 to disable, 255 to read from registers");
+MODULE_PARM_DESC(led, "Set to 1 to enable LED support");
+MODULE_PARM_DESC(diff, "0 for no differential mode, 1 for BIOS, 2 for always, 3 for not GPIO3");
+MODULE_PARM_DESC(irqm, "0 for open drain, 1 to leave alone, 2 for totem pole");
+MODULE_PARM_DESC(buschk, "0 to not check, 1 for detach on error, 2 for warn on error");
+MODULE_PARM_DESC(hostid, "The SCSI ID to use for the host adapters");
+MODULE_PARM_DESC(verb, "0 for minimal verbosity, 1 for normal, 2 for excessive");
+MODULE_PARM_DESC(debug, "Set bits to enable debugging");
+MODULE_PARM_DESC(settle, "Settle delay in seconds.  Default 3");
+MODULE_PARM_DESC(nvram, "Option currently not used");
+MODULE_PARM_DESC(excl, "List ioport addresses here to prevent controllers from being attached");
+MODULE_PARM_DESC(safe, "Set other settings to a \"safe mode\"");
+
+MODULE_LICENSE("GPL");
+MODULE_VERSION(SYM_VERSION);
+MODULE_AUTHOR("Matthew Wilcox <matthew@wil.cx>");
+MODULE_DESCRIPTION("NCR, Symbios and LSI 8xx and 1010 PCI SCSI adapters");
+
+static void sym2_setup_params(void)
+{
+	char *p = excl_string;
+	int xi = 0;
+
+	while (p && (xi < 8)) {
+		char *next_p;
+		int val = (int) simple_strtoul(p, &next_p, 0);
+		sym_driver_setup.excludes[xi++] = val;
+		p = next_p;
+	}
+
+	if (safe_string) {
+		if (*safe_string == 'y') {
+			sym_driver_setup.max_tag = 0;
+			sym_driver_setup.burst_order = 0;
+			sym_driver_setup.scsi_led = 0;
+			sym_driver_setup.scsi_diff = 1;
+			sym_driver_setup.irq_mode = 0;
+			sym_driver_setup.scsi_bus_check = 2;
+			sym_driver_setup.host_id = 7;
+			sym_driver_setup.verbose = 2;
+			sym_driver_setup.settle_delay = 10;
+			sym_driver_setup.use_nvram = 1;
+		} else if (*safe_string != 'n') {
+			printk(KERN_WARNING NAME53C8XX "Ignoring parameter %s"
+					" passed to safe option", safe_string);
+		}
+	}
+}
+
 static int __devinit
 pci_get_base_address(struct pci_dev *pdev, int index, u_long *base)
 {
@@ -919,7 +989,6 @@ static void sym_tune_dev_queuing(struct 
 	}
 }
 
-#ifdef	SYM_LINUX_BOOT_COMMAND_LINE_SUPPORT
 /*
  *  Linux select queue depths function
  */
@@ -972,9 +1041,6 @@ static int device_queue_depth(struct sym
 	}
 	return DEF_DEPTH;
 }
-#else
-#define device_queue_depth(np, t, l)	(sym_driver_setup.max_tag)
-#endif	/* SYM_LINUX_BOOT_COMMAND_LINE_SUPPORT */
 
 /*
  * Linux entry point for device queue sizing.
@@ -1767,142 +1833,6 @@ static inline void sym_get_nvram(struct 
 }
 #endif	/* SYM_CONF_NVRAM_SUPPORT */
 
-/*
- *  Driver setup from the boot command line
- */
-#ifdef	SYM_LINUX_BOOT_COMMAND_LINE_SUPPORT
-
-static struct sym_driver_setup
-	sym_driver_safe_setup __initdata = SYM_LINUX_DRIVER_SAFE_SETUP;
-#ifdef	MODULE
-char *sym53c8xx;	/* command line passed by insmod */
-MODULE_PARM(sym53c8xx, "s");
-#endif
-
-#define OPT_MAX_TAG		1
-#define OPT_BURST_ORDER		2
-#define OPT_SCSI_LED		3
-#define OPT_SCSI_DIFF		4
-#define OPT_IRQ_MODE		5
-#define OPT_SCSI_BUS_CHECK	6
-#define	OPT_HOST_ID		7
-#define OPT_VERBOSE		8
-#define OPT_DEBUG		9
-#define OPT_SETTLE_DELAY	10
-#define OPT_USE_NVRAM		11
-#define OPT_EXCLUDE		12
-#define OPT_SAFE_SETUP		13
-
-static char setup_token[] __initdata =
-	"tags:"		"burst:"
-	"led:"		"diff:"
-	"irqm:"		"buschk:"
-	"hostid:"	"verb:"
-	"debug:"	"settle:"
-	"nvram:"	"excl:"
-	"safe:"		;
-
-#ifdef MODULE
-#define	ARG_SEP	' '
-#else
-#define	ARG_SEP	','
-#endif
-
-static int __init get_setup_token(char *p)
-{
-	char *cur = setup_token;
-	char *pc;
-	int i = 0;
-
-	while (cur != NULL && (pc = strchr(cur, ':')) != NULL) {
-		++pc;
-		++i;
-		if (!strncmp(p, cur, pc - cur))
-			return i;
-		cur = pc;
-	}
-	return 0;
-}
-#endif	/* SYM_LINUX_BOOT_COMMAND_LINE_SUPPORT */
-
-int __init sym53c8xx_setup(char *str)
-{
-#ifdef	SYM_LINUX_BOOT_COMMAND_LINE_SUPPORT
-	char *cur = str;
-	char *pc, *pv;
-	unsigned long val;
-	unsigned int i,  c;
-	int xi = 0;
-
-	while (cur != NULL && (pc = strchr(cur, ':')) != NULL) {
-		char *pe;
-
-		val = 0;
-		pv = pc;
-		c = *++pv;
-
-		if	(c == 'n')
-			val = 0;
-		else if	(c == 'y')
-			val = 1;
-		else
-			val = (int) simple_strtoul(pv, &pe, 0);
-
-		switch (get_setup_token(cur)) {
-		case OPT_MAX_TAG:
-			sym_driver_setup.max_tag = val;
-			if (!(pe && *pe == '/'))
-				break;
-			i = 0;
-			while (*pe && *pe != ARG_SEP && 
-				i < sizeof(sym_driver_setup.tag_ctrl)-1) {
-				sym_driver_setup.tag_ctrl[i++] = *pe++;
-			}
-			sym_driver_setup.tag_ctrl[i] = '\0';
-			break;
-		case OPT_SAFE_SETUP:
-			memcpy(&sym_driver_setup, &sym_driver_safe_setup,
-				sizeof(sym_driver_setup));
-			break;
-		case OPT_EXCLUDE:
-			if (xi < 8)
-				sym_driver_setup.excludes[xi++] = val;
-			break;
-
-#define __SIMPLE_OPTION(NAME, name) \
-		case OPT_ ## NAME :		\
-			sym_driver_setup.name = val;\
-			break;
-
-		__SIMPLE_OPTION(BURST_ORDER, burst_order)
-		__SIMPLE_OPTION(SCSI_LED, scsi_led)
-		__SIMPLE_OPTION(SCSI_DIFF, scsi_diff)
-		__SIMPLE_OPTION(IRQ_MODE, irq_mode)
-		__SIMPLE_OPTION(SCSI_BUS_CHECK, scsi_bus_check)
-		__SIMPLE_OPTION(HOST_ID, host_id)
-		__SIMPLE_OPTION(VERBOSE, verbose)
-		__SIMPLE_OPTION(DEBUG, debug)
-		__SIMPLE_OPTION(SETTLE_DELAY, settle_delay)
-		__SIMPLE_OPTION(USE_NVRAM, use_nvram)
-
-#undef __SIMPLE_OPTION
-
-		default:
-			printk("sym53c8xx_setup: unexpected boot option '%.*s' ignored\n", (int)(pc-cur+1), cur);
-			break;
-		}
-
-		if ((cur = strchr(cur, ARG_SEP)) != NULL)
-			++cur;
-	}
-#endif	/* SYM_LINUX_BOOT_COMMAND_LINE_SUPPORT */
-	return 1;
-}
-
-#ifndef MODULE
-__setup("sym53c8xx=", sym53c8xx_setup);
-#endif
-
 static int __devinit sym_check_supported(struct sym_device *device)
 {
 	struct sym_pci_chip *chip;
@@ -2081,9 +2011,9 @@ sym_init_device(struct pci_dev *pdev, st
 void sym_config_pqs(struct pci_dev *pdev, struct sym_device *sym_dev)
 {
 	int slot;
+	u8 tmp;
 
 	for (slot = 0; slot < 256; slot++) {
-		u8 tmp;
 		struct pci_dev *memc = pci_get_slot(pdev->bus, slot);
 
 		if (!memc || memc->vendor != 0x101a || memc->device == 0x0009) {
@@ -2091,28 +2021,26 @@ void sym_config_pqs(struct pci_dev *pdev
 			continue;
 		}
 
-		/*
-		 * We set these bits in the memory controller once per 875.
-		 * This isn't a problem in practice.
-		 */
-
 		/* bit 1: allow individual 875 configuration */
 		pci_read_config_byte(memc, 0x44, &tmp);
-		tmp |= 0x2;
-		pci_write_config_byte(memc, 0x44, tmp);
+		if ((tmp & 0x2) == 0) {
+			tmp |= 0x2;
+			pci_write_config_byte(memc, 0x44, tmp);
+		}
 
 		/* bit 2: drive individual 875 interrupts to the bus */
 		pci_read_config_byte(memc, 0x45, &tmp);
-		tmp |= 0x4;
-		pci_write_config_byte(memc, 0x45, tmp);
-
-		pci_read_config_byte(pdev, 0x84, &tmp);
-		sym_dev->host_id = tmp;
+		if ((tmp & 0x4) == 0) {
+			tmp |= 0x4;
+			pci_write_config_byte(memc, 0x45, tmp);
+		}
 
 		pci_dev_put(memc);
-
 		break;
 	}
+
+	pci_read_config_byte(pdev, 0x84, &tmp);
+	sym_dev->host_id = tmp;
 }
 
 /*
@@ -2141,9 +2069,6 @@ static int sym_detach(struct sym_hcb *np
 	return 1;
 }
 
-MODULE_LICENSE("GPL");
-MODULE_VERSION(SYM_VERSION);

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> The only problem might exist if __errno_location does not return the
> proper address of rltd_errno when RTLD_PRIVATE_ERRNO is defined. It
> should. If it doesn't then our definition of
> SYSCALL_ERRNO_HANDLER should change in that situation (away from
> DEFAULT_SYSCALL_ERROR_HANDLER which is set to __errno_location).

is there a fix for this? i was building glibc from cvs today to look at
the _dl_debug_state problem and ran into this too.... (also the problem
with the missing NULL defn for waitid)

The problem here seems to be that we are using the generic dl-sysdep.h 
and errno.c/errno-loc.c definitions, and when building rtld-errno-loc.o,
__errno_location is coded to return &errno and not &rtld_errno.

i hacked this in my build but not sure if this is the proper solution --
should we propose a change to the generic errno-loc.c? or do we need our
own? or am i on the wrong track?

i'm using something like this:

Index: linuxthreads/sysdeps/pthread/errno-loc.c
===================================================================
RCS file: /cvs/glibc/libc/linuxthreads/sysdeps/pthread/errno-loc.c,v
retrieving revision 1.3
diff -u -p -r1.3 errno-loc.c
--- linuxthreads/sysdeps/pthread/errno-loc.c	1 Apr 2003 00:52:40 -0000	1.3
+++ linuxthreads/sysdeps/pthread/errno-loc.c	11 Oct 2004 04:41:14 -0000
@@ -24,9 +24,13 @@
 #include <sysdep-cancel.h>
 
 #if ! USE___THREAD
+#if RTLD_PRIVATE_ERRNO
+extern int rtld_errno;
+#else
 #undef errno
 extern int errno;
 #endif
+#endif
 
 int *
 #if ! USE___THREAD
@@ -41,6 +45,10 @@ __errno_location (void)
       return LIBC_THREAD_GETMEM (self, p_errnop);
     }
 #endif
+#if RTLD_PRIVATE_ERRNO
+  return &rtld_errno;
+#else
   return &errno;
+#endif
 }
 libc_hidden_def (__errno_location)

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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> is there a fix for this? i was building glibc from cvs today to look at
> the _dl_debug_state problem and ran into this too.... (also the problem
> with the missing NULL defn for waitid)

I have a fix for the missing NULL defn.

> The problem here seems to be that we are using the generic dl-sysdep.h 
> and errno.c/errno-loc.c definitions, and when building rtld-errno-loc.o,
> __errno_location is coded to return &errno and not &rtld_errno.

Yeah, I saw this yesterday while going through the tree.
 
> i hacked this in my build but not sure if this is the proper solution --
> should we propose a change to the generic errno-loc.c? or do we need our
> own? or am i on the wrong track?

IMO your hack is correct, a lot of other arches just 
write their own version of this file and change it 
depending on the defines.

I get a warning when I compile this and it doesn't 
fail the build for me.


The patch looks good.

As for the missing _dl_debug_state, I'm really starting
to think it's a linker issue.

c.

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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 2.6.9-rc4-pa2 32bits faiiled to boot on b2k ??
Date: Thu, 14 Oct 2004 15:12:57 +0200
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To: "Grundler Grant" <grundler@parisc-linux.org>,
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Xref: news.gmane.org gmane.linux.ports.parisc:24976

Hello pa*,

(Yet) another pb with this b2k and the new 2.6.9-rc4-pa2 (pa3 wouldn't he=
lp,
I don't use HIL on this box).

In summary, this kernel boot fine on b180 (32bit), on n4k (64bit smp, abo=
ut
101 make -j 4 vmlinux on this last 2 days on a local disk :-) ) and fwiw
on
b2k but 64bit only with I-K patch (superio init prior others).

BUT as describe in the title, those same sources with same config (the c3=
k
defconfig)
 but for 32bit, it failled to boot very early, just after the ipl banner:=

Command line for kernel: 'root=3D/dev/sda5 HOME=3D/ panic=3D180 console=3D=
ttyS0
TERM=3Dvt102 palo_kernel=3D3/vmlinux-2.6.9-rc4-pa2-b2k32'
Selected kernel: /vmlinux-2.6.9-rc4-pa2-b2k32 from partition 3
ELF32 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 3727616 mediaptr 0x1000
Segment 1 load 00490000 size 270470 mediaptr 0x390000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

And the cdrom green led stay continuously lighted.

I could grab a piminfo and analyse it: useless because IAOQ was pointing
to:
Func: L4^B2, Off: 0x4, Addr: 0x1010d650

1010d650:       0f a2 12 90     stw rp,8(,ret1)
1010d654:       0f a3 12 98     stw r3,c(,ret1)
1010d658:       6b a4 00 20     stw r4,10(,ret1)
1010d65c:       6b a5 00 28     stw r5,14(,ret1)

:(.

I so came back to latest 2.6.9-rc3-pa5: 32bit and 64bit up kernels were
booting as well on this box :)

It's hard to check but it seems that nothing was missed during merge :)
(btw this pb was already mentioned for pa1 <http://lists.parisc-linux.org=
/pipermail/parisc-linux/2004-October/025018.html>)

Finaly all 4 kernels (2.6.9-rc3-pa5, 2.6.9-rc4-pa2, each 32 and 64 bits)
were build on the same  b2k local disk and the same unstable debian insta=
ll
with latest tools:
ii  libc6          2.3.2.ds1-17   GNU C Library: Shared libraries and Tim=
ezone
ii  libc6-dev      2.3.2.ds1-17   GNU C Library: Development Libraries an=
d
Hea
ii  binutils       2.15-4         The GNU assembler, linker and binary ut=
iliti
ii  binutils-dev   2.15-4         The GNU binary utilities (BFD developme=
nt
fi
ii  binutils-doc   2.15-4         Documentation for the GNU assembler, li=
nker

ii  gcc-3.3        3.3.5-1        The GNU C compiler
ii  gcc-3.3-base   3.3.5-1        The GNU Compiler Collection (base packa=
ge)
ii  gcc-3.3-doc    3.3.5-1        Documentation for the GNU compilers (gc=
c,
go
ii  gcc-hppa64     3.0.4ds3-8     Cross gcc for hppa64

Any idea? what, where, how could I check addtional stuff?

(btw, is any lkcd foreseen for our hppa?)

Thanks in advance,
    Joel

PS1: Is c3xxx, jxxxx doesn't have the same pb?

PS2: it's also the only box where CONFIG_FW_LOADER is set (Y)  (that make=

sense with the select of pcmcia and usb support) but even uncheck this op=
tion
doesn't help.

PS3: because of cdrom led lighted, I also unselect superio support and al=
l
atapi - ide support but nothing help :(




-------------------------------------------------------------------------=
--
Tiscali ADSL GO, 29,50 Euro/mois pendant toute une ann=E9e, profitez-en..=
.
http://reg.tiscali.be/adsl/welcome.asp?lg=3DFR




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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] 64-bit kernel crashes on my c3600
Date: Tue, 19 Oct 2004 18:54:40 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:24977


One of the problems with this crash is that enabling EARLY_CONSOLE
doesn't help.  The exact same configuration boots fine in 32-bit mode.
I'm building from the same tree (with O=) so there's no question of patch
skew.  Turning on DISCONTIGMEM does not help.  The HPMC points inside
the code generated by the save_general macro just past skip_save_ior
inside the intr_save function in entry.S

I'm not even sure how to start debugging.  My initial thought is that r29
seems awfully high to be a good memory address.

Here's the HPMC if it's useful.  BTW, the "system responder address" is
MEM_CONTROL_0 inside the memory controller block of Astro's config space.


Service Menu: Enter command > pim hpmc

PROCESSOR PIM INFORMATION

-----------------  Processor 0 HPMC Information ------------------

Timestamp =
  Tue Oct  19 15:58:28 GMT 2004    (20:04:10:19:15:58:28)

HPMC Chassis Codes = 2cbf0  2500b  2cbf4  2cbfc

General Registers 0 - 31
00-03   0000000000000000  0000000000000080  000000000010012c  fffffff0f0000018
04-07   00000000004cd000  00000000004cf220  00000000fffffff0  00000000f0002f68
08-11   0000000000000006  00000001ffffff80  000000000804000e  000000001062c564
12-15   0000000000000000  00000000ffffffff  0000000000000000  00000000f0400004
16-19   0000000000000000  00000000f000017c  00000000f0000174  0000000000000000
20-23   0000000000000000  00000000fee003f8  00000000fee003fd  0000000000000000
24-27   0000000000000000  0000000000000000  0000000000000006  0000000010612ac0
28-31   0000000000000000  000000020ffffc40  000000020fffff80  0300000000802204

Control Registers 0 - 31
00-03   0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07   0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11   0000000000000000  0000000000000000  0000000000000000  000000000000001f
12-15   0000000000000000  0000000000000000  0000000000106000  0000000000000000
16-19   0000000a99eb6986  0000000000000000  0000000010107678  0000000043ffff80
20-23   0000000000000000  0000000000000000  000000ff08007f00  8000000000000000
24-27   00000000004cd000  00000000004cd000  000000007fffffff  000000007fdfffff
28-31   000000007fffffff  000000007fffffff  00000000105c8000  00000000105cc000
Space Registers 0 - 7

00-03   00000000          00000000          00000000          00000000
04-07   00000000          00000000          00000000          00000000

IIA Space                    = 0x0000000000000000
IIA Offset                   = 0x000000001010767c
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x003010bb
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00031800
System Responder Address     = 0xfffffffffed10200
System Requestor Address     = 0xfffffffffffa0000

Floating-Point Registers 0 - 31
00-03   0000001f00000000  0000000000000000  0000000000000000  0000000000000000
04-07   00001e84000f41fa  0000007810179ac8  00000000000e4de0  104270101052b810
08-11   12ae1e4000000002  eff1700000000002  0000000030433480  000f41fa10425000
12-15   1052bcb400000002  eff1700000000002  0000000000000001  12b1414000000000
16-19   f00008c41052b810  104270103b9aca00  104251601052bc80  30433480000f41fa
20-23   104250001052bcb4  1052bc801016533c  08a00000052d8e00  00000000431bde83
24-27   20e6da0000000000  0000008000000000  eff6a9d400000000  12ad5c40effc18dc
28-31   eff8cbc0ffffffff  ffffffff10176990  ffffffff7fffffff  fffffb7dffffffff

'9000/785 B,C,J Workstation Unarchitected (per-CPU)', rev 1, 140 bytes:

Check Summary                = 0xcb81041000000000
Available Memory             = 0x0000000200000000
CPU Diagnose Register 2      = 0x0300000000802204
CPU Status Register 0        = 0x2420c20000000000
CPU Status Register 1        = 0x8080000000000000
SADD LOG                     = 0x0000000000000000
Read Short LOG               = 0xc13ff0f0f000a1b8
ERROR_STATUS                 = 0x0000000000000010
MEM_ADDR                     = 0x000001ff3fffffff
MEM_SYND                     = 0x0000000000000000
MEM_ADDR_CORR                = 0x000001ff3fffffff
MEM_SYND_CORR                = 0x0000000000000000
RUN_DATA_HIGH                = 0xc1bff0fffed08040
RUN_DATA_LOW                 = 0xc1bff0fffed08040
RUN_CTRL                     = 0x0000021c00001418
RUN_ADDR                     = 0xc1bff0fffed08040
System Responder Path        = 0x00ffffffffffffff


HPMC PIM Analysis Information:

Timestamp =
  Tue Oct  19 15:58:28 GMT 2004    (20:04:10:19:15:58:28)


'9000/785 B,C,J Workstation HPMC PIM Analysis (per-CPU)', rev 0, 1304 bytes:

A Data Miss Timeout occurred while CPU 0 was
requesting information.


Memory/IO Controller Error Analysis Information:

The Memory/IO Controller only observed the Broadcast Error.  It did not log
any additional information about the HPMC.

Memory Error Log Information:

Timestamp =
  Tue Oct  19 15:58:28 GMT 2004    (20:04:10:19:15:58:28)


'9000/785 B,C,J Workstation Memory Error Log', rev 0, 64 bytes:

   No memory errors logged


I/O Module Error Log Information:

Timestamp =
  Tue Oct  19 15:58:28 GMT 2004    (20:04:10:19:15:58:28)


'9000/785 B,C,J Workstation IO Error Log', rev 0, 228 bytes:

 Rope     Word1        Word2            Word3
------ ------------ ------------
   0    0x00000000   0x0e0cc009   0x00000000fed30048
   1    0x00000000   0x1e0cc009   0x00000000fed32048
   2    ----------   0x2e0cc009   ------------------
   3    ----------   0x3e0cc009   ------------------
   4    0x00000000   0x4e0cc009   0x00000000fed38048
   5    ----------   0x5e0cc009   ------------------
   6    0x00000000   0x6e0cc009   0x00000000fed3c048
   7    ----------   0x7e0cc009   ------------------

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Xref: news.gmane.org gmane.linux.ports.parisc:24978


I noticed that in my vmlinux, we have 22k in the .comment section.
Over and over again ...

"\0GCC: (GNU) 3.4.2 (Debian 3.4.2-2)"

Clearly this is because vmlinux.lds.S tells the linker to do this.
The only question is ... why?  Can we kill off the stabs sections too?
We don't seem to generate them any more.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: [parisc-linux] [PATCH] Add key management syscalls to non-i386 archs
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Xref: news.gmane.org gmane.linux.ports.parisc:24979

Hi Linus, Andrew,

The attached patch adds syscalls for almost all archs (everything barring
m68knommu which is in a real mess, and i386 which already has it).

It also adds 32->64 compatibility where appropriate.

David

Signed-Off-By: David Howells <dhowells@redhat.com>
---

warthog>diffstat keys-269bk4.diff 
 arch/alpha/kernel/systbls.S        |    3 +++
 arch/arm/kernel/calls.S            |    3 +++
 arch/cris/arch-v10/kernel/entry.S  |    3 +++
 arch/h8300/kernel/syscalls.S       |    3 +++
 arch/ia64/ia32/ia32_entry.S        |    4 ++++
 arch/ia64/ia32/sys_ia32.c          |   20 ++++++++++++++++++++
 arch/ia64/kernel/entry.S           |    6 +++---
 arch/ia64/kernel/fsys.S            |    6 +++---
 arch/m32r/kernel/entry.S           |    3 +++
 arch/m68k/kernel/entry.S           |    3 +++
 arch/mips/kernel/scall32-o32.S     |    3 +++
 arch/mips/kernel/scall64-64.S      |    3 +++
 arch/mips/kernel/scall64-n32.S     |    3 +++
 arch/mips/kernel/scall64-o32.S     |    3 +++
 arch/parisc/kernel/syscall_table.S |    4 +++-
 arch/ppc/kernel/misc.S             |    3 +++
 arch/ppc64/kernel/misc.S           |    6 ++++++
 arch/ppc64/kernel/sys_ppc32.c      |   33 +++++++++++++++++++++++++++++++++
 arch/s390/kernel/compat_wrapper.S  |   26 ++++++++++++++++++++++++++
 arch/s390/kernel/syscalls.S        |    3 +++
 arch/sh/kernel/entry.S             |    4 ++++
 arch/sh64/kernel/syscalls.S        |    4 +++-
 arch/sparc/kernel/systbls.S        |    2 +-
 arch/sparc64/kernel/sys32.S        |    3 +++
 arch/sparc64/kernel/systbls.S      |    4 ++--
 arch/um/kernel/sys_call_table.c    |    3 +++
 arch/v850/kernel/entry.S           |    3 +++
 arch/x86_64/ia32/ia32entry.S       |    4 ++++
 include/asm-alpha/unistd.h         |    5 ++++-
 include/asm-arm/unistd.h           |    3 +++
 include/asm-arm26/unistd.h         |    3 +++
 include/asm-cris/unistd.h          |    5 ++++-
 include/asm-h8300/unistd.h         |    5 ++++-
 include/asm-ia64/unistd.h          |    3 +++
 include/asm-m32r/unistd.h          |    5 ++++-
 include/asm-m68k/unistd.h          |    5 ++++-
 include/asm-mips/unistd.h          |   17 +++++++++++++----
 include/asm-parisc/unistd.h        |    5 ++++-
 include/asm-ppc/unistd.h           |    5 ++++-
 include/asm-ppc64/unistd.h         |    5 ++++-
 include/asm-s390/unistd.h          |    5 ++++-
 include/asm-sh/unistd.h            |    5 ++++-
 include/asm-sh64/unistd.h          |    5 ++++-
 include/asm-sparc/unistd.h         |    3 +++
 include/asm-sparc64/unistd.h       |    3 +++
 include/asm-v850/unistd.h          |    3 +++
 include/asm-x86_64/unistd.h        |    8 +++++++-
 47 files changed, 239 insertions(+), 27 deletions(-)

diff -uNrp linux-2.6.9-bk4/arch/alpha/kernel/systbls.S linux-2.6.9-bk4-keys/arch/alpha/kernel/systbls.S
--- linux-2.6.9-bk4/arch/alpha/kernel/systbls.S	2004-10-19 10:41:41.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/alpha/kernel/systbls.S	2004-10-20 14:47:43.275151615 +0100
@@ -458,6 +458,9 @@ sys_call_table:
 	.quad sys_mq_notify
 	.quad sys_mq_getsetattr
 	.quad sys_waitid
+	.quad sys_add_key
+	.quad sys_request_key
+	.quad sys_keyctl
 
 	.size sys_call_table, . - sys_call_table
 	.type sys_call_table, @object
diff -uNrp linux-2.6.9-bk4/arch/arm/kernel/calls.S linux-2.6.9-bk4-keys/arch/arm/kernel/calls.S
--- linux-2.6.9-bk4/arch/arm/kernel/calls.S	2004-10-19 10:41:42.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/arm/kernel/calls.S	2004-10-20 14:57:39.641915157 +0100
@@ -295,6 +295,9 @@ __syscall_start:
 		.long	sys_mq_notify
 		.long	sys_mq_getsetattr
 /* 280 */	.long	sys_waitid
+		.long	sys_add_key
+		.long	sys_request_key
+		.long	sys_keyctl
 __syscall_end:
 
 		.rept	NR_syscalls - (__syscall_end - __syscall_start) / 4
diff -uNrp linux-2.6.9-bk4/arch/cris/arch-v10/kernel/entry.S linux-2.6.9-bk4-keys/arch/cris/arch-v10/kernel/entry.S
--- linux-2.6.9-bk4/arch/cris/arch-v10/kernel/entry.S	2004-06-18 13:43:42.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/cris/arch-v10/kernel/entry.S	2004-10-20 14:44:52.215209105 +0100
@@ -1079,6 +1079,9 @@ sys_call_table:	
 	.long sys_mq_timedreceive	/* 280 */
 	.long sys_mq_notify
 	.long sys_mq_getsetattr
+	.long sys_add_key
+	.long sys_request_key	/* 285 */
+	.long sys_keyctl
 		
         /*
          * NOTE!! This doesn't have to be exact - we just have
diff -uNrp linux-2.6.9-bk4/arch/h8300/kernel/syscalls.S linux-2.6.9-bk4-keys/arch/h8300/kernel/syscalls.S
--- linux-2.6.9-bk4/arch/h8300/kernel/syscalls.S	2004-06-18 13:43:42.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/h8300/kernel/syscalls.S	2004-10-20 15:00:36.035535939 +0100
@@ -289,6 +289,9 @@ SYMBOL_NAME_LABEL(sys_call_table)	
 	.long SYMBOL_NAME(sys_utimes)
  	.long SYMBOL_NAME(sys_fadvise64_64)
 	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_vserver */
+	.long SYMBOL_NAME(sys_add_key)
+	.long SYMBOL_NAME(sys_request_key)	/* 275 */
+	.long SYMBOL_NAME(sys_keyctl)
 
 	.rept NR_syscalls-(.-SYMBOL_NAME(sys_call_table))/4
 		.long SYMBOL_NAME(sys_ni_syscall)
diff -uNrp linux-2.6.9-bk4/arch/ia64/ia32/ia32_entry.S linux-2.6.9-bk4-keys/arch/ia64/ia32/ia32_entry.S
--- linux-2.6.9-bk4/arch/ia64/ia32/ia32_entry.S	2004-10-19 10:41:43.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/ia64/ia32/ia32_entry.S	2004-10-20 15:25:01.365546264 +0100
@@ -495,6 +495,10 @@ ia32_syscall_table:
   	data8 compat_sys_mq_getsetattr
 	data8 sys_ni_syscall		/* reserved for kexec */
 	data8 sys32_waitid
+	data8 sys_ni_syscall		/* reserved for setaltroot */
+	data8 sys32_add_key
+	data8 sys32_request_key
+	data8 sys_keyctl
 
 	// guard against failures to increase IA32_NR_syscalls
 	.org ia32_syscall_table + 8*IA32_NR_syscalls
diff -uNrp linux-2.6.9-bk4/arch/ia64/ia32/sys_ia32.c linux-2.6.9-bk4-keys/arch/ia64/ia32/sys_ia32.c
--- linux-2.6.9-bk4/arch/ia64/ia32/sys_ia32.c	2004-10-19 10:41:43.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/ia64/ia32/sys_ia32.c	2004-10-20 15:28:48.663376741 +0100
@@ -2687,6 +2687,26 @@ asmlinkage long sys32_waitid(int which, 
 	return copy_siginfo_to_user32(uinfo, &info);
 }
 
+
+asmlinkage long sys32_add_key(const char __user *_type,
+			      const char __user *_description,
+			      const void __user *_payload,
+			      __u32 plen,
+			      __u32 ringid)
+{
+	sys_add_key(_type, _description, _payload, (size_t) plen,
+		    (key_serial_t) ringid);
+}
+
+asmlinkage long sys32_request_key(const char __user *_type,
+				  const char __user *_description,
+				  const char __user *_callout_info,
+				  __u32 destringid)
+{
+	sys_request_key(_type, _description, _callout_info,
+			(key_serial_t) destringid);
+}
+
 #ifdef	NOTYET  /* UNTESTED FOR IA64 FROM HERE DOWN */
 
 asmlinkage long sys32_setreuid(compat_uid_t ruid, compat_uid_t euid)
diff -uNrp linux-2.6.9-bk4/arch/ia64/kernel/entry.S linux-2.6.9-bk4-keys/arch/ia64/kernel/entry.S
--- linux-2.6.9-bk4/arch/ia64/kernel/entry.S	2004-10-20 14:02:54.138626787 +0100
+++ linux-2.6.9-bk4-keys/arch/ia64/kernel/entry.S	2004-10-20 14:45:48.309267588 +0100
@@ -1528,9 +1528,9 @@ sys_call_table:
 	data8 sys_ni_syscall			// reserved for kexec_load
 	data8 sys_ni_syscall
 	data8 sys_setaltroot			// 1270
-	data8 sys_ni_syscall
-	data8 sys_ni_syscall
-	data8 sys_ni_syscall
+	data8 sys_add_key
+	data8 sys_request_key
+	data8 sys_keyctl
 	data8 sys_ni_syscall
 	data8 sys_ni_syscall			// 1275
 	data8 sys_ni_syscall
diff -uNrp linux-2.6.9-bk4/arch/ia64/kernel/fsys.S linux-2.6.9-bk4-keys/arch/ia64/kernel/fsys.S
--- linux-2.6.9-bk4/arch/ia64/kernel/fsys.S	2004-10-19 10:41:43.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/ia64/kernel/fsys.S	2004-10-20 14:46:27.814789684 +0100
@@ -868,9 +868,9 @@ fsyscall_table:
 	data8 0				// kexec_load
 	data8 0
 	data8 0							// 1270
-	data8 0
-	data8 0
-	data8 0
+	data8 0				// add_key
+	data8 0				// request_key
+	data8 0				// keyctl
 	data8 0
 	data8 0							// 1275
 	data8 0
diff -uNrp linux-2.6.9-bk4/arch/m32r/kernel/entry.S linux-2.6.9-bk4-keys/arch/m32r/kernel/entry.S
--- linux-2.6.9-bk4/arch/m32r/kernel/entry.S	2004-10-19 10:41:44.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/m32r/kernel/entry.S	2004-10-20 15:09:17.798751465 +0100
@@ -994,6 +994,9 @@ ENTRY(sys_call_table)
         .long sys_mq_getsetattr
         .long sys_ni_syscall            /* reserved for kexec */
 	.long sys_waitid
+	.long sys_add_key		/* 285 */
+	.long sys_request_key
+	.long sys_keyctl
 
 syscall_table_size=(.-sys_call_table)
 
diff -uNrp linux-2.6.9-bk4/arch/m68k/kernel/entry.S linux-2.6.9-bk4-keys/arch/m68k/kernel/entry.S
--- linux-2.6.9-bk4/arch/m68k/kernel/entry.S	2004-06-18 13:43:44.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/m68k/kernel/entry.S	2004-10-20 14:45:20.678701183 +0100
@@ -663,3 +663,6 @@ sys_call_table:
 	.long sys_lremovexattr
 	.long sys_fremovexattr
 	.long sys_futex		/* 235 */
+	.long sys_add_key
+	.long sys_request_key
+	.long sys_keyctl
diff -uNrp linux-2.6.9-bk4/arch/mips/kernel/scall32-o32.S linux-2.6.9-bk4-keys/arch/mips/kernel/scall32-o32.S
--- linux-2.6.9-bk4/arch/mips/kernel/scall32-o32.S	2004-09-16 12:05:47.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/mips/kernel/scall32-o32.S	2004-10-20 14:30:46.698878816 +0100
@@ -628,6 +628,9 @@ out:	jr	ra
 	sys	sys_mq_notify		2	/* 4275 */
 	sys	sys_mq_getsetattr	3
 	sys	sys_ni_syscall		0	/* sys_vserver */
+	sys	sys_add_key		5
+	sys	sys_request_key		4
+	sys	sys_keyctl		5
 
 	.endm
 
diff -uNrp linux-2.6.9-bk4/arch/mips/kernel/scall64-64.S linux-2.6.9-bk4-keys/arch/mips/kernel/scall64-64.S
--- linux-2.6.9-bk4/arch/mips/kernel/scall64-64.S	2004-09-16 12:05:47.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/mips/kernel/scall64-64.S	2004-10-20 14:32:42.206470034 +0100
@@ -448,3 +448,6 @@ sys_call_table:
 	PTR	sys_mq_notify
 	PTR	sys_mq_getsetattr		/* 5235 */
 	PTR	sys_ni_syscall			/* sys_vserver */
+	PTR	sys_add_key
+	PTR	sys_request_key
+	PTR	sys_keyctl
diff -uNrp linux-2.6.9-bk4/arch/mips/kernel/scall64-n32.S linux-2.6.9-bk4-keys/arch/mips/kernel/scall64-n32.S
--- linux-2.6.9-bk4/arch/mips/kernel/scall64-n32.S	2004-09-16 12:05:47.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/mips/kernel/scall64-n32.S	2004-10-20 15:12:10.687967430 +0100
@@ -358,3 +358,6 @@ EXPORT(sysn32_call_table)
 	PTR	compat_sys_mq_notify
 	PTR	compat_sys_mq_getsetattr	/* 6239 */
 	PTR	sys_ni_syscall			/* sys_vserver */
+	PTR	sys_add_key
+	PTR	sys_request_key
+	PTR	sys_keyctl
diff -uNrp linux-2.6.9-bk4/arch/mips/kernel/scall64-o32.S linux-2.6.9-bk4-keys/arch/mips/kernel/scall64-o32.S
--- linux-2.6.9-bk4/arch/mips/kernel/scall64-o32.S	2004-09-16 12:05:47.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/mips/kernel/scall64-o32.S	2004-10-20 15:11:26.761722025 +0100
@@ -536,6 +536,9 @@ out:	jr	ra
 	sys	compat_sys_mq_notify	2	/* 4275 */
 	sys	compat_sys_mq_getsetattr 3
 	sys	sys_ni_syscall		0	/* sys_vserver */
+	sys	sys_add_key		5
+	sys	sys_request_key		4
+	sys	sys_keyctl		5
 
 	.endm
 
diff -uNrp linux-2.6.9-bk4/arch/parisc/kernel/syscall_table.S linux-2.6.9-bk4-keys/arch/parisc/kernel/syscall_table.S
--- linux-2.6.9-bk4/arch/parisc/kernel/syscall_table.S	2004-06-18 13:43:47.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/parisc/kernel/syscall_table.S	2004-10-20 14:58:51.533643420 +0100
@@ -341,5 +341,7 @@
   ENTRY_SAME(mq_timedreceive)
   ENTRY_SAME(mq_notify)
   ENTRY_SAME(mq_getsetattr)
-  /* Nothing yet */       /* 235 */
+	ENTRY_SAME(add_key)	/* 235 */
+	ENTRY_SAME(request_key)
+	ENTRY_SAME(keyctl)
 
diff -uNrp linux-2.6.9-bk4/arch/ppc/kernel/misc.S linux-2.6.9-bk4-keys/arch/ppc/kernel/misc.S
--- linux-2.6.9-bk4/arch/ppc/kernel/misc.S	2004-10-19 10:41:46.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/ppc/kernel/misc.S	2004-10-20 14:43:37.665815385 +0100
@@ -1447,3 +1447,6 @@ _GLOBAL(sys_call_table)
 	.long sys_mq_notify
 	.long sys_mq_getsetattr
 	.long sys_ni_syscall		/* 268 reserved for sys_kexec_load */
+	.long sys_add_key
+	.long sys_request_key		/* 270 */
+	.long sys_keyctl
diff -uNrp linux-2.6.9-bk4/arch/ppc64/kernel/misc.S linux-2.6.9-bk4-keys/arch/ppc64/kernel/misc.S
--- linux-2.6.9-bk4/arch/ppc64/kernel/misc.S	2004-10-20 14:02:55.974474037 +0100
+++ linux-2.6.9-bk4-keys/arch/ppc64/kernel/misc.S	2004-10-20 14:57:18.470763092 +0100
@@ -963,6 +963,9 @@ _GLOBAL(sys_call_table32)
 	.llong .compat_sys_mq_notify
 	.llong .compat_sys_mq_getsetattr
 	.llong .sys_ni_syscall		/* 268 reserved for sys_kexec_load */
+	.llong .sys32_add_key
+	.llong .sys32_request_key
+	.llong .sys32_keyctl
 
 	.balign 8
 _GLOBAL(sys_call_table)
@@ -1235,3 +1238,6 @@ _GLOBAL(sys_call_table)
 	.llong .sys_mq_notify
 	.llong .sys_mq_getsetattr
 	.llong .sys_ni_syscall		/* 268 reserved for sys_kexec_load */
+	.llong .sys_add_key
+	.llong .sys_request_key		/* 270 */
+	.llong .sys_keyctl
diff -uNrp linux-2.6.9-bk4/arch/ppc64/kernel/sys_ppc32.c linux-2.6.9-bk4-keys/arch/ppc64/kernel/sys_ppc32.c
--- linux-2.6.9-bk4/arch/ppc64/kernel/sys_ppc32.c	2004-10-20 14:02:56.046468047 +0100
+++ linux-2.6.9-bk4-keys/arch/ppc64/kernel/sys_ppc32.c	2004-10-20 15:29:22.936487493 +0100
@@ -1328,3 +1328,36 @@ long ppc32_timer_create(clockid_t clock,
 
 	return err;
 }
+
+asmlinkage long sys32_add_key(const char __user *_type,
+			      const char __user *_description,
+			      const void __user *_payload,
+			      u32 plen,
+			      u32 ringid)
+{
+	sys_add_key(_type, _description, _payload, (size_t) plen,
+		    (key_serial_t) ringid);
+}
+
+asmlinkage long sys32_request_key(const char __user *_type,
+				  const char __user *_description,
+				  const char __user *_callout_info,
+				  u32 destringid)
+{
+	sys_request_key(_type, _description, _callout_info,
+			(key_serial_t) destringid);
+}
+
+/* Note: it is necessary to treat option as an unsigned int, 
+ * with the corresponding cast to a signed int to insure that the 
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_keyctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
+{
+	return sys_keyctl((int)option,
+			 (unsigned long) arg2,
+			 (unsigned long) arg3,
+			 (unsigned long) arg4,
+			 (unsigned long) arg5);
+}
diff -uNrp linux-2.6.9-bk4/arch/s390/kernel/compat_wrapper.S linux-2.6.9-bk4-keys/arch/s390/kernel/compat_wrapper.S
--- linux-2.6.9-bk4/arch/s390/kernel/compat_wrapper.S	2004-06-18 13:43:49.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/s390/kernel/compat_wrapper.S	2004-10-20 15:08:00.071403677 +0100
@@ -1406,3 +1406,29 @@ compat_sys_mq_getsetattr_wrapper:
 	llgtr	%r3,%r3			# struct compat_mq_attr *
 	llgtr	%r4,%r4			# struct compat_mq_attr *
 	jg	compat_sys_mq_getsetattr
+
+	.globl  sys32_add_key_wrapper
+sys32_add_key_wrapper:
+	lgfr	%r2,%r2			# const char *
+	llgfr	%r3,%r3			# const char *
+	llgfr	%r4,%r4			# const void *
+	llgfr	%r5,%r5			# size_t
+	llgfr	%r6,%r6			# key_serial_t
+	jg	sys_add_key		# branch to system call
+
+	.globl  sys32_request_key_wrapper
+sys32_request_key_wrapper:
+	lgfr	%r2,%r2			# const char *
+	llgfr	%r3,%r3			# const char *
+	llgfr	%r4,%r4			# const char *
+	llgfr	%r5,%r5			# key_serial_t
+	jg	sys_request_key		# branch to system call
+
+	.globl  sys32_keyctl_wrapper
+sys32_keyctl_wrapper:
+	lgfr	%r2,%r2			# int
+	llgfr	%r3,%r3			# unsigned long
+	llgfr	%r4,%r4			# unsigned long
+	llgfr	%r5,%r5			# unsigned long
+	llgfr	%r6,%r6			# unsigned long
+	jg	sys_keyctl		# branch to system call
diff -uNrp linux-2.6.9-bk4/arch/s390/kernel/syscalls.S linux-2.6.9-bk4-keys/arch/s390/kernel/syscalls.S
--- linux-2.6.9-bk4/arch/s390/kernel/syscalls.S	2004-06-18 13:43:49.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/s390/kernel/syscalls.S	2004-10-20 15:05:49.863555437 +0100
@@ -285,3 +285,6 @@ SYSCALL(sys_mq_timedsend,sys_mq_timedsen
 SYSCALL(sys_mq_timedreceive,sys_mq_timedreceive,compat_sys_mq_timedreceive_wrapper)
 SYSCALL(sys_mq_notify,sys_mq_notify,compat_sys_mq_notify_wrapper)
 SYSCALL(sys_mq_getsetattr,sys_mq_getsetattr,compat_sys_mq_getsetattr_wrapper)
+SYSCALL(sys_add_key,sys_add_key,sys32_add_key_wrapper)
+SYSCALL(sys_request_key,sys_request_key,sys32_request_key_wrapper)
+SYSCALL(sys_keyctl,sys_keyctl,sys32_keyctl_wrapper)
diff -uNrp linux-2.6.9-bk4/arch/sh/kernel/entry.S linux-2.6.9-bk4-keys/arch/sh/kernel/entry.S
--- linux-2.6.9-bk4/arch/sh/kernel/entry.S	2004-10-20 14:02:56.666416464 +0100
+++ linux-2.6.9-bk4-keys/arch/sh/kernel/entry.S	2004-10-20 14:26:32.677689027 +0100
@@ -1140,5 +1140,9 @@ ENTRY(sys_call_table)
 	.long sys_mq_timedreceive       /* 280 */
 	.long sys_mq_notify
 	.long sys_mq_getsetattr
+	.long sys_add_key
+	.long sys_request_key
+	.long sys_keyctl		/* 285 */
+	
 
 /* End of entry.S */
diff -uNrp linux-2.6.9-bk4/arch/sh64/kernel/syscalls.S linux-2.6.9-bk4-keys/arch/sh64/kernel/syscalls.S
--- linux-2.6.9-bk4/arch/sh64/kernel/syscalls.S	2004-09-16 12:05:50.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/sh64/kernel/syscalls.S	2004-10-20 15:08:45.682499668 +0100
@@ -337,4 +337,6 @@ sys_call_table:
 	.long sys_mq_timedreceive
 	.long sys_mq_notify
 	.long sys_mq_getsetattr		/* 310 */
-
+	.long sys_add_key
+	.long sys_request_key
+	.long sys_keyctl
diff -uNrp linux-2.6.9-bk4/arch/sparc/kernel/systbls.S linux-2.6.9-bk4-keys/arch/sparc/kernel/systbls.S
--- linux-2.6.9-bk4/arch/sparc/kernel/systbls.S	2004-10-19 10:41:48.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/sparc/kernel/systbls.S	2004-10-20 14:25:23.775664787 +0100
@@ -75,7 +75,7 @@ sys_call_table:
 /*265*/	.long sys_timer_delete, sys_timer_create, sys_nis_syscall, sys_io_setup, sys_io_destroy
 /*270*/	.long sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink
 /*275*/	.long sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid
-/*280*/	.long sys_ni_syscall, sys_ni_syscall, sys_ni_syscall
+/*280*/	.long sys_add_key, sys_request_key, sys_keyctl
 
 #ifdef CONFIG_SUNOS_EMUL
 	/* Now the SunOS syscall table. */
diff -uNrp linux-2.6.9-bk4/arch/sparc64/kernel/sys32.S linux-2.6.9-bk4-keys/arch/sparc64/kernel/sys32.S
--- linux-2.6.9-bk4/arch/sparc64/kernel/sys32.S	2004-10-19 10:41:48.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/sparc64/kernel/sys32.S	2004-10-20 15:22:48.095792589 +0100
@@ -135,6 +135,9 @@ SIGN2(sys32_shutdown, sys_shutdown, %o0,
 SIGN3(sys32_socketpair, sys_socketpair, %o0, %o1, %o2)
 SIGN1(sys32_getpeername, sys_getpeername, %o0)
 SIGN1(sys32_getsockname, sys_getsockname, %o0)
+SIGN2(sys32_add_key, sys_add_key, %o3, %o4)
+SIGN1(sys32_request_key, sys_request_key, %o3)
+SIGN1(sys32_keyctl, sys_keyctl, %o0)
 
 	.globl		sys32_mmap2
 sys32_mmap2:
diff -uNrp linux-2.6.9-bk4/arch/sparc64/kernel/systbls.S linux-2.6.9-bk4-keys/arch/sparc64/kernel/systbls.S
--- linux-2.6.9-bk4/arch/sparc64/kernel/systbls.S	2004-10-19 10:41:48.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/sparc64/kernel/systbls.S	2004-10-20 14:42:28.934934888 +0100
@@ -76,7 +76,7 @@ sys_call_table32:
 	.word sys_timer_delete, sys32_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
 /*270*/	.word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink
 	.word sys_mq_timedsend, sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid
-/*280*/	.word sys_ni_syscall, sys_ni_syscall, sys_ni_syscall
+/*280*/	.word sys32_add_key, sys32_request_key, sys32_keyctl
 
 #endif /* CONFIG_COMPAT */
 
@@ -142,7 +142,7 @@ sys_call_table:
 	.word sys_timer_delete, sys_timer_create, sys_ni_syscall, sys_io_setup, sys_io_destroy
 /*270*/	.word sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink
 	.word sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid
-/*280*/	.word sys_ni_syscall, sys_ni_syscall, sys_ni_syscall
+/*280*/	.word sys_add_key, sys_request_key, sys_keyctl
 
 #if defined(CONFIG_SUNOS_EMUL) || defined(CONFIG_SOLARIS_EMUL) || \
     defined(CONFIG_SOLARIS_EMUL_MODULE)
diff -uNrp linux-2.6.9-bk4/arch/um/kernel/sys_call_table.c linux-2.6.9-bk4-keys/arch/um/kernel/sys_call_table.c
--- linux-2.6.9-bk4/arch/um/kernel/sys_call_table.c	2004-10-19 10:41:49.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/um/kernel/sys_call_table.c	2004-10-20 14:44:10.557889241 +0100
@@ -306,6 +306,9 @@ syscall_handler_t *sys_call_table[] = {
 	[ __NR_utimes ] (syscall_handler_t *) sys_utimes,
 	[ __NR_fadvise64_64 ] (syscall_handler_t *) sys_fadvise64_64,
 	[ __NR_vserver ] (syscall_handler_t *) sys_ni_syscall,
+	[ __NR_add_key ] (syscall_handler_t *) sys_add_key,
+	[ __NR_request_key ] (syscall_handler_t *) sys_request_key,
+	[ __NR_keyctl ] (syscall_handler_t *) sys_keyctl,
 
 	ARCH_SYSCALLS
 	[ LAST_SYSCALL + 1 ... NR_syscalls ] = 
diff -uNrp linux-2.6.9-bk4/arch/v850/kernel/entry.S linux-2.6.9-bk4-keys/arch/v850/kernel/entry.S
--- linux-2.6.9-bk4/arch/v850/kernel/entry.S	2004-06-18 13:41:13.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/v850/kernel/entry.S	2004-10-20 15:02:06.154739578 +0100
@@ -1117,5 +1117,8 @@ C_DATA(sys_call_table):
 	.long CSYM(sys_pivot_root)	// 200
 	.long CSYM(sys_gettid)
 	.long CSYM(sys_tkill)
+	.long CSYM(sys_add_key)
+	.long CSYM(sys_request_key)
+	.long CSYM(sys_keyctl)		// 205
 sys_call_table_end:
 C_END(sys_call_table)
diff -uNrp linux-2.6.9-bk4/arch/x86_64/ia32/ia32entry.S linux-2.6.9-bk4-keys/arch/x86_64/ia32/ia32entry.S
--- linux-2.6.9-bk4/arch/x86_64/ia32/ia32entry.S	2004-10-19 10:41:49.000000000 +0100
+++ linux-2.6.9-bk4-keys/arch/x86_64/ia32/ia32entry.S	2004-10-20 15:04:46.183013167 +0100
@@ -587,6 +587,10 @@ ia32_sys_call_table:
 	.quad compat_sys_mq_getsetattr
 	.quad quiet_ni_syscall		/* reserved for kexec */
 	.quad sys32_waitid
+	.quad quiet_ni_syscall		/* 285 reserved for setaltroot */
+	.quad sys_add_key
+	.quad sys_request_key
+	.quad sys_keyctl
 	/* don't forget to change IA32_NR_syscalls */
 ia32_syscall_end:		
 	.rept IA32_NR_syscalls-(ia32_syscall_end-ia32_sys_call_table)/8
diff -uNrp linux-2.6.9-bk4/include/asm-alpha/unistd.h linux-2.6.9-bk4-keys/include/asm-alpha/unistd.h
--- linux-2.6.9-bk4/include/asm-alpha/unistd.h	2004-10-19 10:42:11.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-alpha/unistd.h	2004-10-20 14:18:36.681064345 +0100
@@ -374,8 +374,11 @@
 #define __NR_mq_notify			436
 #define __NR_mq_getsetattr		437
 #define __NR_waitid			438
+#define __NR_add_key			439
+#define __NR_request_key		440
+#define __NR_keyctl			441
 
-#define NR_SYSCALLS			439
+#define NR_SYSCALLS			442
 
 #if defined(__GNUC__)
 
diff -uNrp linux-2.6.9-bk4/include/asm-arm/unistd.h linux-2.6.9-bk4-keys/include/asm-arm/unistd.h
--- linux-2.6.9-bk4/include/asm-arm/unistd.h	2004-10-19 10:42:12.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-arm/unistd.h	2004-10-20 14:17:35.183426405 +0100
@@ -306,6 +306,9 @@
 #define __NR_mq_notify			(__NR_SYSCALL_BASE+278)
 #define __NR_mq_getsetattr		(__NR_SYSCALL_BASE+279)
 #define __NR_waitid			(__NR_SYSCALL_BASE+280)
+#define __NR_add_key			(__NR_SYSCALL_BASE+281)
+#define __NR_request_key		(__NR_SYSCALL_BASE+282)
+#define __NR_keyctl			(__NR_SYSCALL_BASE+283)
 
 /*
  * The following SWIs are ARM private.
diff -uNrp linux-2.6.9-bk4/include/asm-arm26/unistd.h linux-2.6.9-bk4-keys/include/asm-arm26/unistd.h
--- linux-2.6.9-bk4/include/asm-arm26/unistd.h	2004-06-18 13:44:05.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-arm26/unistd.h	2004-10-20 14:16:45.004804472 +0100
@@ -260,6 +260,9 @@
 #define __NR_lremovexattr		(__NR_SYSCALL_BASE+236)
 #define __NR_fremovexattr		(__NR_SYSCALL_BASE+237)
 #define __NR_tkill			(__NR_SYSCALL_BASE+238)
+#define __NR_add_key			(__NR_SYSCALL_BASE+239)
+#define __NR_request_key		(__NR_SYSCALL_BASE+240)
+#define __NR_keyctl			(__NR_SYSCALL_BASE+241)
 
 /*
  * The following SWIs are ARM private.
diff -uNrp linux-2.6.9-bk4/include/asm-cris/unistd.h linux-2.6.9-bk4-keys/include/asm-cris/unistd.h
--- linux-2.6.9-bk4/include/asm-cris/unistd.h	2004-06-18 13:44:05.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-cris/unistd.h	2004-10-20 14:16:21.025897563 +0100
@@ -288,8 +288,11 @@
 #define __NR_mq_timedreceive	(__NR_mq_open+3)
 #define __NR_mq_notify		(__NR_mq_open+4)
 #define __NR_mq_getsetattr	(__NR_mq_open+5)
+#define __NR_add_key		283
+#define __NR_request_key	284
+#define __NR_keyctl		285
  
-#define NR_syscalls 283
+#define NR_syscalls 286
 
 
 #ifdef __KERNEL__
diff -uNrp linux-2.6.9-bk4/include/asm-h8300/unistd.h linux-2.6.9-bk4-keys/include/asm-h8300/unistd.h
--- linux-2.6.9-bk4/include/asm-h8300/unistd.h	2004-06-18 13:44:05.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-h8300/unistd.h	2004-10-20 15:01:16.446016959 +0100
@@ -269,8 +269,11 @@
 #define __NR_clock_gettime	(__NR_timer_create+6)
 #define __NR_clock_getres	(__NR_timer_create+7)
 #define __NR_clock_nanosleep	(__NR_timer_create+8)
+#define __NR_add_key		274
+#define __NR_request_key	275
+#define __NR_keyctl		276
 
-#define NR_syscalls 268
+#define NR_syscalls 277
 
 
 /* user-visible error numbers are in the range -1 - -122: see
diff -uNrp linux-2.6.9-bk4/include/asm-ia64/unistd.h linux-2.6.9-bk4-keys/include/asm-ia64/unistd.h
--- linux-2.6.9-bk4/include/asm-ia64/unistd.h	2004-10-20 14:03:14.832904952 +0100
+++ linux-2.6.9-bk4-keys/include/asm-ia64/unistd.h	2004-10-20 14:14:59.746996878 +0100
@@ -260,6 +260,9 @@
 #define __NR_kexec_load			1268
 #define __NR_vserver			1269
 #define __NR_setaltroot			1270
+#define __NR_add_key			1271
+#define __NR_request_key		1272
+#define __NR_keyctl			1273
 
 #ifdef __KERNEL__
 
diff -uNrp linux-2.6.9-bk4/include/asm-m32r/unistd.h linux-2.6.9-bk4-keys/include/asm-m32r/unistd.h
--- linux-2.6.9-bk4/include/asm-m32r/unistd.h	2004-10-19 10:42:13.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-m32r/unistd.h	2004-10-20 14:14:34.284222397 +0100
@@ -294,8 +294,11 @@
 #define __NR_mq_getsetattr      (__NR_mq_open+5)
 #define __NR_sys_kexec_load    283
 #define __NR_waitid            284
+#define __NR_add_key		285
+#define __NR_request_key	286
+#define __NR_keyctl		287
 
-#define NR_syscalls 285
+#define NR_syscalls 288
 
 /* user-visible error numbers are in the range -1 - -124: see
  * <asm-m32r/errno.h>
diff -uNrp linux-2.6.9-bk4/include/asm-m68k/unistd.h linux-2.6.9-bk4-keys/include/asm-m68k/unistd.h
--- linux-2.6.9-bk4/include/asm-m68k/unistd.h	2004-06-18 13:44:05.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-m68k/unistd.h	2004-10-20 14:14:06.358663984 +0100
@@ -238,8 +238,11 @@
 #define __NR_lremovexattr	233
 #define __NR_fremovexattr	234
 #define __NR_futex		235
+#define __NR_add_key		236
+#define __NR_request_key	237
+#define __NR_keyctl		238
 
-#define NR_syscalls		236
+#define NR_syscalls		239
 
 /* user-visible error numbers are in the range -1 - -124: see
    <asm-m68k/errno.h> */
diff -uNrp linux-2.6.9-bk4/include/asm-mips/unistd.h linux-2.6.9-bk4-keys/include/asm-mips/unistd.h
--- linux-2.6.9-bk4/include/asm-mips/unistd.h	2004-09-16 12:06:18.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-mips/unistd.h	2004-10-20 14:12:31.321979696 +0100
@@ -298,16 +298,19 @@
 #define __NR_mq_notify			(__NR_Linux + 275)
 #define __NR_mq_getsetattr		(__NR_Linux + 276)
 #define __NR_vserver			(__NR_Linux + 277)
+#define __NR_add_key			(__NR_Linux + 278)
+#define __NR_request_key		(__NR_Linux + 279)
+#define __NR_keyctl			(__NR_Linux + 280)
 
 /*
  * Offset of the last Linux o32 flavoured syscall
  */
-#define __NR_Linux_syscalls		277
+#define __NR_Linux_syscalls		280
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
 
 #define __NR_O32_Linux			4000
-#define __NR_O32_Linux_syscalls		277
+#define __NR_O32_Linux_syscalls		280
 
 #if _MIPS_SIM == _MIPS_SIM_ABI64
 
@@ -552,11 +555,14 @@
 #define __NR_mq_notify			(__NR_Linux + 234)
 #define __NR_mq_getsetattr		(__NR_Linux + 235)
 #define __NR_vserver			(__NR_Linux + 236)
+#define __NR_add_key			(__NR_Linux + 237)
+#define __NR_request_key		(__NR_Linux + 238)
+#define __NR_keyctl			(__NR_Linux + 239)
 
 /*
  * Offset of the last Linux flavoured syscall
  */
-#define __NR_Linux_syscalls		236
+#define __NR_Linux_syscalls		239
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
 
@@ -810,11 +816,14 @@
 #define __NR_mq_notify			(__NR_Linux + 238)
 #define __NR_mq_getsetattr		(__NR_Linux + 239)
 #define __NR_vserver			(__NR_Linux + 240)
+#define __NR_add_key			(__NR_Linux + 241)
+#define __NR_request_key		(__NR_Linux + 242)
+#define __NR_keyctl			(__NR_Linux + 243)
 
 /*
  * Offset of the last N32 flavoured syscall
  */
-#define __NR_Linux_syscalls		240
+#define __NR_Linux_syscalls		243
 
 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
 
diff -uNrp linux-2.6.9-bk4/include/asm-parisc/unistd.h linux-2.6.9-bk4-keys/include/asm-parisc/unistd.h
--- linux-2.6.9-bk4/include/asm-parisc/unistd.h	2004-09-16 12:06:18.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-parisc/unistd.h	2004-10-20 14:11:00.896901332 +0100
@@ -727,8 +727,11 @@
 #define __NR_mq_timedreceive    (__NR_Linux + 232)
 #define __NR_mq_notify          (__NR_Linux + 233)
 #define __NR_mq_getsetattr      (__NR_Linux + 234)
+#define __NR_add_key		(__NR_Linux + 235)
+#define __NR_request_key	(__NR_Linux + 236)
+#define __NR_keyctl		(__NR_Linux + 237)
 
-#define __NR_Linux_syscalls     235
+#define __NR_Linux_syscalls     238
 
 #define HPUX_GATEWAY_ADDR       0xC0000004
 #define LINUX_GATEWAY_ADDR      0x100
diff -uNrp linux-2.6.9-bk4/include/asm-ppc/unistd.h linux-2.6.9-bk4-keys/include/asm-ppc/unistd.h
--- linux-2.6.9-bk4/include/asm-ppc/unistd.h	2004-06-18 13:44:05.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-ppc/unistd.h	2004-10-20 14:10:32.629379614 +0100
@@ -273,8 +273,11 @@
 #define __NR_mq_notify		266
 #define __NR_mq_getsetattr	267
 #define __NR_kexec_load		268
+#define __NR_add_key		269
+#define __NR_request_key	270
+#define __NR_keyctl		271
 
-#define __NR_syscalls		269
+#define __NR_syscalls		272
 
 #define __NR(n)	#n
 
diff -uNrp linux-2.6.9-bk4/include/asm-ppc64/unistd.h linux-2.6.9-bk4-keys/include/asm-ppc64/unistd.h
--- linux-2.6.9-bk4/include/asm-ppc64/unistd.h	2004-10-19 10:42:14.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-ppc64/unistd.h	2004-10-20 14:10:19.868498694 +0100
@@ -279,8 +279,11 @@
 #define __NR_mq_notify		266
 #define __NR_mq_getsetattr	267
 #define __NR_kexec_load		268
+#define __NR_add_key		269
+#define __NR_request_key	270
+#define __NR_keyctl		271
 
-#define __NR_syscalls		269
+#define __NR_syscalls		272
 #ifdef __KERNEL__
 #define NR_syscalls	__NR_syscalls
 #endif
diff -uNrp linux-2.6.9-bk4/include/asm-s390/unistd.h linux-2.6.9-bk4-keys/include/asm-s390/unistd.h
--- linux-2.6.9-bk4/include/asm-s390/unistd.h	2004-06-18 13:44:05.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-s390/unistd.h	2004-10-20 14:09:39.572899460 +0100
@@ -269,8 +269,11 @@
 #define __NR_mq_timedreceive	274
 #define __NR_mq_notify		275
 #define __NR_mq_getsetattr	276
+#define __NR_add_key		277
+#define __NR_request_key	278
+#define __NR_keyctl		279
 
-#define NR_syscalls 277
+#define NR_syscalls 280
 
 /* 
  * There are some system calls that are not present on 64 bit, some
diff -uNrp linux-2.6.9-bk4/include/asm-sh/unistd.h linux-2.6.9-bk4-keys/include/asm-sh/unistd.h
--- linux-2.6.9-bk4/include/asm-sh/unistd.h	2004-10-20 14:03:16.058802954 +0100
+++ linux-2.6.9-bk4-keys/include/asm-sh/unistd.h	2004-10-20 14:09:16.465821351 +0100
@@ -290,8 +290,11 @@
 #define __NR_mq_timedreceive    (__NR_mq_open+3)
 #define __NR_mq_notify          (__NR_mq_open+4)
 #define __NR_mq_getsetattr      (__NR_mq_open+5)
+#define __NR_add_key		283
+#define __NR_request_key	284
+#define __NR_keyctl		285
 
-#define NR_syscalls 283
+#define NR_syscalls 286
 
 /* user-visible error numbers are in the range -1 - -124: see <asm-sh/errno.h> */
 
diff -uNrp linux-2.6.9-bk4/include/asm-sh64/unistd.h linux-2.6.9-bk4-keys/include/asm-sh64/unistd.h
--- linux-2.6.9-bk4/include/asm-sh64/unistd.h	2004-09-16 12:06:19.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-sh64/unistd.h	2004-10-20 14:08:45.352409218 +0100
@@ -333,8 +333,11 @@
 #define __NR_mq_timedreceive    (__NR_mq_open+3)
 #define __NR_mq_notify          (__NR_mq_open+4)
 #define __NR_mq_getsetattr      (__NR_mq_open+5)
+#define __NR_add_key		311
+#define __NR_request_key	312
+#define __NR_keyctl		313
 
-#define NR_syscalls 311
+#define NR_syscalls 314
 
 /* user-visible error numbers are in the range -1 - -125: see <asm-sh64/errno.h> */
 
diff -uNrp linux-2.6.9-bk4/include/asm-sparc/unistd.h linux-2.6.9-bk4-keys/include/asm-sparc/unistd.h
--- linux-2.6.9-bk4/include/asm-sparc/unistd.h	2004-10-19 10:42:14.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-sparc/unistd.h	2004-10-20 14:08:05.303740383 +0100
@@ -296,6 +296,9 @@
 #define __NR_mq_notify		277
 #define __NR_mq_getsetattr	278
 #define __NR_waitid		279
+#define __NR_add_key		280
+#define __NR_request_key	281
+#define __NR_keyctl		282
 
 /* WARNING: You MAY NOT add syscall numbers larger than 282, since
  *          all of the syscall tables in the Sparc kernel are
diff -uNrp linux-2.6.9-bk4/include/asm-sparc64/unistd.h linux-2.6.9-bk4-keys/include/asm-sparc64/unistd.h
--- linux-2.6.9-bk4/include/asm-sparc64/unistd.h	2004-10-19 10:42:15.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-sparc64/unistd.h	2004-10-20 14:07:45.586380476 +0100
@@ -298,6 +298,9 @@
 #define __NR_mq_notify		277
 #define __NR_mq_getsetattr	278
 #define __NR_waitid		279
+#define __NR_add_key		280
+#define __NR_request_key	281
+#define __NR_keyctl		282
 
 /* WARNING: You MAY NOT add syscall numbers larger than 282, since
  *          all of the syscall tables in the Sparc kernel are
diff -uNrp linux-2.6.9-bk4/include/asm-v850/unistd.h linux-2.6.9-bk4-keys/include/asm-v850/unistd.h
--- linux-2.6.9-bk4/include/asm-v850/unistd.h	2004-09-16 12:06:20.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-v850/unistd.h	2004-10-20 14:06:45.477380562 +0100
@@ -205,6 +205,9 @@
 #define __NR_pivot_root		200
 #define __NR_gettid		201
 #define __NR_tkill		202
+#define __NR_add_key		203
+#define __NR_request_key	204
+#define __NR_keyctl		205
 
 
 /* Syscall protocol:
diff -uNrp linux-2.6.9-bk4/include/asm-x86_64/unistd.h linux-2.6.9-bk4-keys/include/asm-x86_64/unistd.h
--- linux-2.6.9-bk4/include/asm-x86_64/unistd.h	2004-10-19 10:42:16.000000000 +0100
+++ linux-2.6.9-bk4-keys/include/asm-x86_64/unistd.h	2004-10-20 14:06:01.645026869 +0100
@@ -556,8 +556,14 @@ __SYSCALL(__NR_mq_getsetattr, sys_mq_get
 __SYSCALL(__NR_kexec_load, sys_ni_syscall)
 #define __NR_waitid		247
 __SYSCALL(__NR_waitid, sys_waitid)
+#define __NR_add_key		248
+__SYSCALL(__NR_add_key, sys_add_key)
+#define __NR_request_key	249
+__SYSCALL(__NR_request_key, sys_request_key)
+#define __NR_keyctl		250
+__SYSCALL(__NR_keyctl, sys_keyctl)
 
-#define __NR_syscall_max __NR_waitid
+#define __NR_syscall_max __NR_keyctl
 #ifndef __NO_STUBS
 
 /* user-visible error numbers are in the range -1 - -4095 */
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Xref: news.gmane.org gmane.linux.ports.parisc:24980

On Tue, Oct 19, 2004 at 06:54:40PM +0100, Matthew Wilcox wrote:
> One of the problems with this crash is that enabling EARLY_CONSOLE
> doesn't help.  The exact same configuration boots fine in 32-bit mode.
> I'm building from the same tree (with O=) so there's no question of patch
> skew.  Turning on DISCONTIGMEM does not help.  The HPMC points inside
> the code generated by the save_general macro just past skip_save_ior
> inside the intr_save function in entry.S

This is just before calling handle_interruption, so it looks like you
took an interrupt before something was setup properly?

These sorts of problems are very messy to debug if they are
non-deterministic. Just stick an infinite loop in a portion of code you
expect might be before the HPMC, run, TOC, check, and move the loop.
That's my normal procedure when I had to debug similar stuff to prove
some lws code.
 
> I'm not even sure how to start debugging.  My initial thought is that r29
> seems awfully high to be a good memory address.

Why do you think that?

I'm interested in r2 which is a userspace address. Did this box make it
to userspace?

c.

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Xref: news.gmane.org gmane.linux.ports.parisc:24981

Sorry for self reply first,
> 
> 
> Hello James,
> 
> I read the great job you did around scsi stuff and try to implement it
for
> my c110 specialy for 53c700 (narrow se scsi interface).
> 
> All seems to compile fine but it failed to build the kernel because:
>   ld   -o .tmp_vmlinux1 -T arch/parisc/kernel/vmlinux.lds arch/parisc/k=
ernel/head.o
>   init/built-in.o --start-group  usr/built-in.o
>  arch/parisc/mm/built-in.o  arch/parisc/kernel/built-in.o  arch/parisc/=
math-emu/built-in.o
> arch/parisc/kernel/init_task.o  kernel/bu
> ilt-in.o  mm/built-in.o  fs/built-in.o  ipc/built-in.o  security/built-=
in.o
>  crypto/built-in.o  lib/lib.a  arch/parisc/lib/lib.a `gc
> c -print-libgcc-file-name`  lib/built-in.o  arch/parisc/lib/built-in.o
`gcc
> -print-libgcc-file-name`  drivers/built-in.o  sound/buil
> t-in.o  net/built-in.o --end-group
> drivers/built-in.o(.init.text+0x7e2c): In function `zalon7xx_init':
> : undefined reference to `ncr53c8xx_init'
> drivers/built-in.o(.init.text+0x7e54): In function `zalon7xx_init':
> : undefined reference to `ncr53c8xx_exit'
> 
And please accept my appologies: I missed a merge pb:
patching file drivers/scsi/ncr53c8xx.c
Reversed (or previously applied) patch detected!  Assume -R? [n]
Apply anyway? [n]
Skipping patch.
105 out of 105 hunks ignored -- saving rejects to file drivers/scsi/ncr53=
c8xx.c.rej
patching file drivers/scsi/ncr53c8xx.h
Reversed (or previously applied) patch detected!  Assume -R? [n]
Apply anyway? [n]
Skipping patch.
2 out of 2 hunks ignored -- saving rejects to file drivers/scsi/ncr53c8xx=
.h.rej
patching file drivers/scsi/nsp32.c

Oops I just need more work.

Sorry again for inconvenience,
    Joel


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It's been clear to me for a while that we need more regular merges
with Linus' tree.  Part of the fault for that is with me -- I don't
send patches to Linus as fast as I could [1].  Another part of the fault
is with our process.  We only merge full releases and -rc releases.
So, after some awk hacking (thanks to Paul Bame) and a bit of thinking,
I'd like to use a more development-oriented process.

Those on the p-l-cvs list will be seeing the current 2.6.9-bk6 import.
I'm not committing to any kind of schedule for these, but I do intend
to merge every few days.  If two weeks go by without merges, I'm either
slacking or on holiday.

Obviously, this is going to lead to more frequent, but hopefully
also more short-term breakage.  If anyone wants to, they are allowed,
nay, encouraged to create branches in our CVS tree for the purposes
of stabilisation.  I see no problems with 2.6.9-paX continuing as a
"stable series", as long as fixes also go onto the trunk.


[1] Those who want to debug me instead of changing our development
process should be in possession of a degree in psychiatry and be willing
to travel to the Ottawa area for an extended period ;-)

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: [parisc-linux] 2.6.9-bk6-pa1: some questions
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Xref: news.gmane.org gmane.linux.ports.parisc:24983

Hello Matthew,

I greatly appreciate this idea.

I can so check my work and so have some questions:

1) I didn't understand this change:
diff -NaurX dontdiff linux-2.6.9-bk6-pa1.orig/drivers/scsi/sym53c8xx_2/sy=
m_glue.c
linux-2.6.9-bk6-pa1/drivers/scsi/sym53c8xx_2/sym_glue.c
--- linux-2.6.9-bk6-pa1.orig/drivers/scsi/sym53c8xx_2/sym_glue.c	2004-10-=
22
08:11:04.000000000 +0200
+++ linux-2.6.9-bk6-pa1/drivers/scsi/sym53c8xx_2/sym_glue.c	2004-10-22 10=
:29:04.000000000
+0200
@@ -2308,7 +2308,7 @@
 	struct sym_hcb *np =3D ((struct host_data *)shost->hostdata)->ncb;
 	struct sym_tcb *tp =3D &np->target[starget->id];
 

-	if (qas)
+	if (starget)
 		tp->tinfo.goal.options |=3D PPR_OPT_QAS | PPR_OPT_DT;
 	else
 		tp->tinfo.goal.options &=3D ~PPR_OPT_QAS;

2) is this  I-K patch still needed (for superio initialisation)
diff -NaurX dontdiff linux-2.6.9-bk6-pa1.orig/drivers/parisc/superio.c li=
nux-2.6.9-bk6-pa1/drivers/parisc/superio.c
--- linux-2.6.9-bk6-pa1.orig/drivers/parisc/superio.c	2004-09-29 10:14:52=
.000000000
+0200
+++ linux-2.6.9-bk6-pa1/drivers/parisc/superio.c	2004-10-22 10:13:33.0000=
00000
+0200
@@ -481,7 +481,7 @@
 	pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
 	printk("PCI: Enabled native mode for NS87415 (pif=3D0x%x)\n", prog);
 }
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, super=
io_fixup_pci);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, superi=
o_fixup_pci);
 
 
 static int __devinit superio_probe(struct pci_dev *dev, const struct pci=
_device_id
*id)
diff -NaurX dontdiff linux-2.6.9-bk6-pa1.orig/drivers/pci/probe.c linux-2=
.6.9-bk6-pa1/drivers/pci/probe.c
--- linux-2.6.9-bk6-pa1.orig/drivers/pci/probe.c	2004-10-22 08:10:36.0000=
00000
+0200
+++ linux-2.6.9-bk6-pa1/drivers/pci/probe.c	2004-10-22 10:13:33.000000000=

+0200
@@ -478,6 +478,9 @@
 	/* "Unknown power state" */
 	dev->current_state =3D 4;
 
+	/* Early fixups, before probing the BARs */
+	pci_fixup_device(pci_fixup_early, dev);
+
 	switch (dev->hdr_type) {		    /* header type */
 	case PCI_HEADER_TYPE_NORMAL:		    /* standard header */
 		if (class =3D=3D PCI_CLASS_BRIDGE_PCI)
diff -NaurX dontdiff linux-2.6.9-bk6-pa1.orig/drivers/pci/quirks.c linux-=
2.6.9-bk6-pa1/drivers/pci/quirks.c
--- linux-2.6.9-bk6-pa1.orig/drivers/pci/quirks.c	2004-10-22 08:10:36.000=
000000
+0200
+++ linux-2.6.9-bk6-pa1/drivers/pci/quirks.c	2004-10-22 10:13:33.00000000=
0
+0200
@@ -1279,6 +1279,8 @@
 	}
 }
 
+extern struct pci_fixup __start_pci_fixups_early[];
+extern struct pci_fixup __end_pci_fixups_early[];
 extern struct pci_fixup __start_pci_fixups_header[];
 extern struct pci_fixup __end_pci_fixups_header[];
 extern struct pci_fixup __start_pci_fixups_final[];
@@ -1292,6 +1294,11 @@
 	struct pci_fixup *start, *end;
 
 	switch(pass) {
+	case pci_fixup_early:
+		start =3D __start_pci_fixups_early;
+		end =3D __end_pci_fixups_early;
+		break;
+
 	case pci_fixup_header:
 		start =3D __start_pci_fixups_header;
 		end =3D __end_pci_fixups_header;
diff -NaurX dontdiff linux-2.6.9-bk6-pa1.orig/include/asm-generic/vmlinux=
.lds.h
linux-2.6.9-bk6-pa1/include/asm-generic/vmlinux.lds.h
--- linux-2.6.9-bk6-pa1.orig/include/asm-generic/vmlinux.lds.h	2004-10-22=

08:12:00.000000000 +0200
+++ linux-2.6.9-bk6-pa1/include/asm-generic/vmlinux.lds.h	2004-10-22 10:1=
3:33.000000000
+0200
@@ -18,6 +18,9 @@
 									\
 	/* PCI quirks */						\
 	.pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {	\
+		VMLINUX_SYMBOL(__start_pci_fixups_early) =3D .;		\
+		*(.pci_fixup_early)					\
+		VMLINUX_SYMBOL(__end_pci_fixups_early) =3D .;		\
 		VMLINUX_SYMBOL(__start_pci_fixups_header) =3D .;		\
 		*(.pci_fixup_header)					\
 		VMLINUX_SYMBOL(__end_pci_fixups_header) =3D .;		\
diff -NaurX dontdiff linux-2.6.9-bk6-pa1.orig/include/linux/pci.h linux-2=
.6.9-bk6-pa1/include/linux/pci.h
--- linux-2.6.9-bk6-pa1.orig/include/linux/pci.h	2004-10-22 08:12:15.0000=
00000
+0200
+++ linux-2.6.9-bk6-pa1/include/linux/pci.h	2004-10-22 10:13:33.000000000=

+0200
@@ -993,21 +993,30 @@
 };
 
 enum pci_fixup_pass {
-	pci_fixup_header,	/* Called immediately after reading configuration hea=
der
*/
+	pci_fixup_early,	/* Called immediately after reading
+				   device/vendor IDs and class code */
+	pci_fixup_header,	/* Called after reading the entire
+				   configuration header (including BARs) */
 	pci_fixup_final,	/* Final phase of device fixups */
 	pci_fixup_enable,	/* pci_enable_device() time */
 };
 
 /* Anonymous variables would be nice... */
-#define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook)					\
-	static struct pci_fixup __pci_fixup_##vendor##device##hook __attribute_=
used__
\
-	__attribute__((__section__(".pci_fixup_header"))) =3D {				\
-		vendor, device, hook };
-
-#define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook)				\
-	static struct pci_fixup __pci_fixup_##vendor##device##hook __attribute_=
used__
\
-	__attribute__((__section__(".pci_fixup_final"))) =3D {				\
-		vendor, device, hook };
+#define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook)
\
+	static struct pci_fixup __pci_fixup_##name __attribute_used__	\
+	__attribute__((__section__( #section ))) =3D { vendor, device, hook };
+
+#define DECLARE_PCI_FIXUP_EARLY(vendor, device, hook)			\
+	 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early,			\
+			vendor##device##hook, vendor, device, hook)
+
+#define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook)			\
+	 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header,			\
+			vendor##device##hook, vendor, device, hook)
+
+#define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook)			\
+	 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final,			\
+			vendor##device##hook, vendor, device, hook)
 
 #define DECLARE_PCI_FIXUP_ENABLE(vendor, device, hook)				\
 	static struct pci_fixup __pci_fixup_##vendor##device##hook __attribute_=
used__
\

3) is there any danger to apply this matter:
diff -NaurX dontdiff linux-2.6.9-bk6-pa1.orig/drivers/scsi/ncr53c8xx.c li=
nux-2.6.9-bk6-pa1/drivers/scsi/ncr53c8xx.c
--- linux-2.6.9-bk6-pa1.orig/drivers/scsi/ncr53c8xx.c	2004-10-22 08:10:50=
.000000000
+0200
+++ linux-2.6.9-bk6-pa1/drivers/scsi/ncr53c8xx.c	2004-10-22 10:13:33.0000=
00000
+0200
@@ -2841,7 +2841,6 @@
 		if (opcode =3D=3D 0) {
 			printk (KERN_ERR "%s: ERROR0 IN SCRIPT at %d.\n",
 				ncr_name(np), (int) (src-start-1));
-			mdelay(1000);
 		};
 
 		if (DEBUG_FLAGS & DEBUG_SCRIPT)
@@ -2871,7 +2870,6 @@
 			if ((tmp1 ^ tmp2) & 3) {
 				printk (KERN_ERR"%s: ERROR1 IN SCRIPT at %d.\n",
 					ncr_name(np), (int) (src-start-1));
-				mdelay(1000);
 			}
 			/*
 			**	If PREFETCH feature not enabled, remove 

Thanks in advance for your attention,
    Joel


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Xref: news.gmane.org gmane.linux.ports.parisc:24984

Hello Matthew,

This kernel 32bits :) boot fine on my b2k (btw did you have the opportuni=
ty
to find what went wrong on your c3k?)

I also want to build it for my n4k which need DISCONTIGMEM and I encounte=
r
following build pb:
  hppa64-linux-gcc -Wp,-MD,arch/parisc/mm/.init.o.d -nostdinc -iwithprefi=
x
include -D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -O2 -fomit-frame-pointer  -pipe -mno-spa=
ce-regs
-mfast-indirect-calls -ffunction-sections -march=3D2.0 -mschedule=3D8000 =
  
-DKBUILD_BASENAME=3Dinit -DKBUILD_MODNAME=3Dinit -c -o arch/parisc/mm/ini=
t.o
arch/parisc/mm/init.c
arch/parisc/mm/init.c: In function `setup_bootmem':
arch/parisc/mm/init.c:274: warning: implicit declaration of function `nod=
e_set_online'

it seems that it required the same change as for other arches; somthing
like:
--- arch/parisc/mm/init.c.orig	2004-10-22 18:14:39.651683442 +0200
+++ arch/parisc/mm/init.c	2004-10-22 18:13:15.553956857 +0200
@@ -13,6 +13,7 @@
 
 #include <linux/module.h>
 #include <linux/mm.h>
+#include <linux/nodemask.h>
 #include <linux/bootmem.h>
 #include <linux/delay.h>
 #include <linux/init.h>
=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D

Thanks in advance to ci (if ok for everybody obviously :) ),
    Joel


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From: "Joel Soete" <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: RE: [parisc-linux] console on ttyS0 broken with 2.6.9-bk6-pa1 ?
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To: "Helge Deller" <deller@gmx.de>,
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Hello Helge,

> 
> I just compiled/booted the latest CVS kernel (2.6.9-bk6-pa1) which seem=
s
> to boot fine.
> Sadly using a serial console is broken. Any ideas ?
> 
Sorry I could very help but I experiment a similar pb on my c110:

> This is the bootlog in minicom:
> 
> palo ipl 0.99 root@P100 Sat Apr 13 22:21:21 CEST 2002
> 
> Boot image contains:
>     0/vmlinux32 4714377 bytes @ 0x8000
> 
> Information: No console specified on kernel command line. This is norma=
l.
> PALO will choose the console currently used by firmware (serial).
> Command line for kernel: 'HOME=3D/ root=3D/dev/sda3 ip=3Dbootp console=3D=
ttyS0
TERM=3Dvt102
> palo_kernel=3D0/vmlinux'
> Selected kernel: /vmlinux from partition 0
> Warning: kernel name doesn't end with 32 or 64 -- Guessing... Choosing
32-bit
> kernelELF32 executable
> Entry 00100368 first 00100000 n 1
> Segment 0 load 00100000 size 3780741 mediaptr 0x1000
> Branching to kernel entry point 0x00100368.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org=

> 
After this , on this c110 (and b180) model, there are not any more messag=
es
display (since release 2.6.9-rc2-pa1?) on serial console (no way to test
sti one :( ) before :
0x00000009}
lp: driver loaded but no devices found
Generic RTC Driver v1.07
(ie just after sti switch should occur ?)

> 
> Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabl=
ed
> ttyS0 at MMIO 0xf0105800 (irq =3D 90) is a 16550A
The same but the message is weird for me:
0x00000009}
0x00000009}
0x00000009}
etc

(Note that one of this line was already displayed before "lp: driver..."
?)

Anyway (may be was I not enough patient) the system never came up 
(I couldn't even launch a TOC to grab some piminfo:  the time stamp of wh=
at
I read was date May 23 ... when the hw system clock was well Oct 23 ...?)=


Also a simiar pb on the n4k, the message was:
'io scheduler noop registered'
'io scheduler noop registered'
etc

And the system didn't bring up too (I almost waited 10 mininutes before
reset it)

OTC my b2k with 32bit kernel boot fine without any pb of any kind (all me=
ssages
are well displayed :)

 Cheers,
    Joel

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From: "Andy Walker" <ajwalker@broadpark.no>
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Subject: [parisc-linux] Re: STI crash on B132L with HCRX-24
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Xref: news.gmane.org gmane.linux.ports.parisc:24986

> Hi Andy,
>
> did you find a solution for the stifb-problem?
> I encounter the same problem with a 735/125 with CRX24 graphics. Kernel
> 2.4.27
> works fine, any 2.6.x-kernel I tried gives me a hang.
>
> Johannes
>
> --


Hi Johannes & PA,

Johannes dragged up this old mail of mine as he has been having FB
related problems with CRX24 on his 735/125.

In my case, 32bpp FB on HCRX24 (Hyperbowl) on my B132L stopped working
at the time the FB reorganization patches went into the early 2.6
kernels. I have successfully been running 2.6.7-pa1 in 8bpp though.

Last night I compiled and booted 2.6.9-pa1. FB is totally hosed also
in 8bpp now. When the kernel switches to FB the screen gets "splattered"
with blue and red buffer debris and the machine hangs.

Looks like CRX/HCRX is suffering from chronic bitrot, possibly exarcebated
by the ia32/ia64-centric FB patches that have been going in lately.

So, is there anyone (Helge?) who has time and knowledge to look into
this? I can boot the B132L with the console on Vis-EG and torture the
HCRX24 on fb1 if that helps, but some clues would be good.

-Andy


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Subject: Re: [parisc-linux] 2.6.9-bk6-pa4:Tuip driver broken on n4k
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On Wed, Oct 27, 2004 at 12:26:25PM +0200, Joel Soete wrote:
> Hello pa,
> 
> Unfortunately, the tulip driver seems to be broken on this n4k:
> the boot sequence start fine until message:
> Linux Tulip driver version 1.1.13 (May 11, 2002)
> 
> then system panic
> (unfortunately I don't have any way to grab pimfo on this system)
> 
> Any idea?

Not really, I have both a built-in tulip and a quad-port tulip card in
my c3600 and it works just fine.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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From: "Dimitar Atanasov" <d.atanasov@nek.bg>
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Subject: [parisc-linux] Troubles with console on HP9000 rp3440
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Hello Pa-Risc!
I try to install linux on HP 9000 rp 3440. I connect to console over null
modem cable, and I start the install from the boot cd. But I lost the
output. The installation says that the output is on ttyS0 but I can't find
it. I search all com ports and other consoles but I didn't see anything
anywhere.
Please help if you have any ideas.
I have read the manual but I have no such things on my console commands, or
may be I didn't understand the procedure.



Regards,
Dimitar Atanasov
NEK EAD.



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Subject: Re: [parisc-linux] 2.6.9-bk6-pa4:Tuip driver broken on n4k
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On Wed, Oct 27, 2004 at 06:29:49PM +0200, Joel Soete wrote:
> I am ongoing to rebuild a 64bit kernel for the b2k.
> (btw: Matthew, i supposed that you are also running a 32bit kernel on you
> c model?)

Yes, I can't get a 64-bit kernel to work.  gcc 3.4 compiled kernels stop
before the console is initialised; gcc 3.3 compiled kernels boot to the
point of displaying a login prompt, but refuse ssh connections and input
on console.

Other people have functional 64-bit kernels compiled with gcc 3.3,
so I don't know what I'm doing wrong.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] 2.6.9-bk6-pa4:Tuip driver broken on n4k
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> On Wed, Oct 27, 2004 at 06:29:49PM +0200, Joel Soete wrote:
> > I am ongoing to rebuild a 64bit kernel for the b2k.
Well it boot fine:
the printk linux_banner being:
Linux version 2.6.9-bk6-pa5-b2k64 (root@patst005) (gcc version 3.0.4) #2
Wed Oct 27 18:27:54 CEST 2004

and from a ssh connection:
jso@patst005:~$ uname -a
Linux patst005 2.6.9-bk6-pa5-b2k64 #2 Wed Oct 27 18:27:54 CEST 2004 paris=
c64
GNU/Linux

So the pb is else where, definitively I need this lanconsole connection
to grab more easily a piminfo in the hope to get a better starting point
;)

> > (btw: Matthew, i supposed that you are also running a 32bit kernel on=

you
> > c model?)
> 
> Yes, I can't get a 64-bit kernel to work.  gcc 3.4 compiled kernels sto=
p
> before the console is initialised; gcc 3.3 compiled kernels boot to the=

> point of displaying a login prompt, but refuse ssh connections and inpu=
t
> on console.
> 
Well for the two systems I still used (may be outdated but still usefull)=

gcc-3.0

> Other people have functional 64-bit kernels compiled with gcc 3.3,
> so I don't know what I'm doing wrong.
> 
Unfortunately I couldn't help on this matter :(

Thanks again,
    Joel



-------------------------------------------------------------------------=
--
Tiscali ADSL GO & Light, 2 mois gratuits, profitez-en...
http://reg.tiscali.be/adsl/welcome.asp?lg=3DFR




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Subject: [parisc-linux] 2.6.9-bk6-pa4: serial console fixed for b180, n4k
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Hello pa*,

The serial console loop pb seems to be fixed for the 2 model b180 and n4k=
:
b180:
[...]
Generic RTC Driver v1.07
serio: GSC PS/2 keyboard port at 0xffd08000 irq 69 @ 8:16:7
serio: GSC PS/2 mouse port at 0xffd08100 irq 69 @ 8:16:8
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled=

ttyS0 at MMIO 0xffd05800 (irq =3D 90) is a 16550A
ttyS1 at MMIO 0xfff83800 (irq =3D 106) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
loop: loaded (max 8 devices)
PPP generic driver version 2.4.2
[...]

n4k: (handy notes)
[...]
Serial: 8250/16550 driver $Revision: 1.90...
ttyS0 at MMIO 0xffffffff80000000 (irq=3D132) is a 16550A
ttyS0 at MMIO 0xffffffff80000008 (irq=3D132) is a 16450
ttyS0 at MMIO 0xffffffff80000010 (irq=3D132) is a 16550A
ttyS0 at MMIO 0xffffffff80000038 (irq=3D132) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
[...]

Thanks for all,
    Joel


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Subject: [parisc-linux] 2.6.9-bk6-pa4:Tuip driver broken on n4k
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Hello pa,

Unfortunately, the tulip driver seems to be broken on this n4k:
the boot sequence start fine until message:
Linux Tulip driver version 1.1.13 (May 11, 2002)

then system panic
(unfortunately I don't have any way to grab pimfo on this system)

Any idea?

TIA,
    Joel


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On Wed, Oct 27, 2004 at 04:22:34PM +0300, Dimitar Atanasov wrote:
> Hello Pa-Risc!
> I try to install linux on HP 9000 rp 3440.

Support for pa8800 machines isn't fully functional yet.
"make -j2" segfaults withing a minute or so. I haven't tried
again recently.
Unless you intend on debugging TLB/Cache probles, it's best
to stick with HPUX for now.

>  I connect to console over null
> modem cable, and I start the install from the boot cd.

Which boot cd? Where did it come from?

The only installer that has a chance of working is if
debian-installer uses a recent 2.6 kernel (since May, 2004) *or* has
the pa8800/ZX1 chipset support backported to 2.4 kernel.

hth,
grant

>  But I lost the
> output. The installation says that the output is on ttyS0 but I can't find
> it. I search all com ports and other consoles but I didn't see anything
> anywhere.
> Please help if you have any ideas.
> I have read the manual but I have no such things on my console commands, or
> may be I didn't understand the procedure.
> 
> 
> 
> Regards,
> Dimitar Atanasov
> NEK EAD.
> 
> 
> 
> _______________________________________________
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> parisc-linux@lists.parisc-linux.org
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On Thu, Oct 21, 2004 at 07:11:10PM +0100, Matthew Wilcox wrote:
> It's been clear to me for a while that we need more regular merges
> with Linus' tree.  Part of the fault for that is with me -- I don't
> send patches to Linus as fast as I could [1].  Another part of the fault
> is with our process.  We only merge full releases and -rc releases.
> So, after some awk hacking (thanks to Paul Bame) and a bit of thinking,
> I'd like to use a more development-oriented process.

Neither Paul nor I have been able to come up with an acceptable fix for the
unforseen problems that -rcN-bkM-paQ would encounter.  But I'm not entirely
willing to give up on more frequent merges.  Here's my current thinking,
using Makefile as an example:

-- current --
CVS2_6_9_BK6_PA7: 1.280
LINUS_2_6_10_RC1: 1.280.2
linus: 1.280.2.1
CVS2_6_10_RC1_PA0: 1.281
CVS2_6_10_RC1_PA1: 1.283

-- future --
LINUS_2_6_10_RC1_BK6: 1.283.2.1
CVS2_6_10_RC1_BK6_PA0: 1.283.2.2
CVS2_6_10_RC1_PA2: 1.284
LINUS_2_6_10_RC2: 1.284.2
CVS2_6_10_RC2_PA0: 1.285
CVS2_6_10_RC2_PA1: 1.286
CVS2_6_10_RC2_PA2: 1.287
LINUS_2_6_10_RC2_BK3: 1.287.2.1
CVS2_6_10_RC2_BK3_PA0: 1.287.2.2

ie create a branch tag at the current top of tree, but then merge the
PA work onto that branch rather than merge the contents of that branch
back onto mainline.  Development work continues on mainline and my need
for more frequent merges doesn't have to impinge on anyone else's needs.

So what's the point in committing these bits to CVS?  After all, I
could as well do the merge in my own private tree and not commit it back.
I think it's useful for other people to catch merge errors that I miss ;-)
and it helps us cherry-pick patches from -bk snapshots which fix problems.

I'll probably move a couple of tags around -- perhaps parisc-bk and linus-bk

Comments?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Wed, Oct 27, 2004 at 03:15:22PM +0100, Matthew Wilcox wrote:
> On Wed, Oct 27, 2004 at 03:32:16PM +0200, Joel Soete wrote:
> >  	while (dev != &root) {
> > +#ifdef CONFIG_PCI
> >  		if (dev->bus == &pci_bus_type) {
> >  			unsigned int devfn = to_pci_dev(dev)->devfn;
> >  			path->bc[i--] = PCI_SLOT(devfn) | (PCI_FUNC(devfn)<< 5);
> >  		} else if (dev->bus == &parisc_bus_type) {
> > +#else
> > +		if (dev->bus == &parisc_bus_type) {
> > +#endif
> >  			path->bc[i--] = to_parisc_device(dev)->hw_path;
> >  		}
> >  		dev = dev->parent;
> 
> The problem here is that pci_bus_type is declared inside an #ifdef
> CONFIG_PCI.  What we *actually* want to know is "is this device a
> pci_dev?"  and this isn't the best way to ask this question.  How about
> we add exactly that question to <linux/pci.h>, something like:

Ick, no.  Devices do not "show" their type, you have to explicitly know
what type they are in order to use them.

Why are you wanting to know this?  What are you trying to do with a
generic struct device * where you don't know exactly what type it is?

thanks,

greg k-h

p.s. bonus points to the first person who finds in the kernel where I
myself have violated the second sentance in this response :)
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On Fri, Oct 29, 2004 at 07:37:18PM -0700, Greg KH wrote:
> Ick, no.  Devices do not "show" their type, you have to explicitly know
> what type they are in order to use them.
> 
> Why are you wanting to know this?  What are you trying to do with a
> generic struct device * where you don't know exactly what type it is?

In order to communicate with PA-RISC firmware, you have to know the path
to a device.  It's typically represented as something like [10/8/4/5/0].
This device can be PCI, GSC or EISA.  There's some moderately arcane
rules for turning a device into a path that you really don't care about,
but we need the devfn for PCI devices and the hw_path for GSC devices.

So what we want to do is, given a struct device, determine its path;
and given a path, turn it into a struct device.  The device model lets
us do this quite nicely -- much better than having duplicated routines
for starting with a pci_dev or a parisc_device.

If you prefer to keep this out of linux/pci.h, that's fine, we can keep
it private to arch/parisc.  I thought this might be something other
architectures might want to use (maybe for openfirmware?)

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Sat, Oct 30, 2004 at 08:48:22AM -0700, Greg KH wrote:
> On Sat, Oct 30, 2004 at 04:40:07PM +0100, Matthew Wilcox wrote:
> > 
> > If you prefer to keep this out of linux/pci.h, that's fine, we can keep
> > it private to arch/parisc.  I thought this might be something other
> > architectures might want to use (maybe for openfirmware?)
> 
> Let's keep it private for now.  If openfirmware ever moves to the device
> tree properly, we can deal with it then :)

The EDD sysfs symlinks would like something like this, not only for
PCI (it does this today by calling pci_find_slot() with the values
BIOS tells it), but doesn't have the infrastructure for making
symlinks to the underlying ATA, SCSI, SAS (coming), ... devices.  I
removed the horrible hacks I put in to try to guess what a device is,
and don't create the symlink from the EDD device to the actual disk
device.  But it would be nice to have a generic method to do it so I
can add that back in.

Thanks,
Matt

-- 
Matt Domsch
Sr. Software Engineer, Lead Engineer
Dell Linux Solutions linux.dell.com & www.dell.com/linux
Linux on Dell mailing lists @ http://lists.us.dell.com
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From: Joel Soete <soete.joel@tiscali.be>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] k-2.6.10-rc1-pa3 & c110: high data rate => Kernel
	panic - ...
Date: Sat, 30 Oct 2004 19:58:40 +0000
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To: James Bottomley <James.Bottomley@steeleye.com>,
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Xref: news.gmane.org gmane.linux.ports.parisc:24998

Hello James,

The serial console pb being fixed, I can now boot again my c110 with recent 2.6.10-rc1-pa3 :)

I do first a 'apt-get dist-upgrade' of the chroot disk which use lasi & 53c700 new driver and I unfortunately encounter numerous 
messages (error/warning?):

Oct 30 19:57:33 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
Oct 30 19:57:33 hpalin kernel: scsi1: Bus Reset detected, executing command 2d22a360, slot 2fd6064c, dsp 001d81e8[01e8]
Oct 30 19:57:33 hpalin kernel:  failing command because of reset, slot 2fd6064c, cmnd 2d22a360
Oct 30 20:03:53 hpalin kernel: scsi1: (3:0), UNEXPECTED PHASE after command phase (CD BSY REQ CMD_OUT)
Oct 30 20:03:53 hpalin kernel:          len = 10, cmd =scsi1 : destination target 3, lun 0
Oct 30 20:03:53 hpalin kernel:         command = 0x2a 00 00 0c 09 98 00 04 00 00
Oct 30 20:03:53 hpalin kernel: scsi1: Bus Reset detected, executing command 2d22a8e0, slot 2fd608a4, dsp 001d8210[0210]
Oct 30 20:03:53 hpalin kernel:  failing command because of reset, slot 2fd60520, cmnd 2d22ae60
Oct 30 20:03:53 hpalin kernel:  failing command because of reset, slot 2fd6064c, cmnd 2d22a780
Oct 30 20:03:53 hpalin kernel:  failing command because of reset, slot 2fd60778, cmnd 2fd14b60
Oct 30 20:03:53 hpalin kernel:  failing command because of reset, slot 2fd608a4, cmnd 2d22a8e0
Oct 30 20:03:53 hpalin kernel: Incorrect number of segments after building list
Oct 30 20:03:53 hpalin kernel: counted 7, received 6
Oct 30 20:03:53 hpalin kernel: req nr_sec 544, cur_nr_sec 8
Oct 30 20:03:53 hpalin kernel: Buffer I/O error on device sdc5, logical block 17105
Oct 30 20:03:53 hpalin kernel: lost page write due to I/O error on sdc5
Oct 30 20:03:53 hpalin kernel: Buffer I/O error on device sdc5, logical block 17106
Oct 30 20:03:53 hpalin kernel: lost page write due to I/O error on sdc5
Oct 30 20:03:53 hpalin kernel: Buffer I/O error on device sdc5, logical block 17107
Oct 30 20:03:53 hpalin kernel: lost page write due to I/O error on sdc5
Oct 30 20:03:53 hpalin kernel: Buffer I/O error on device sdc5, logical block 17108
Oct 30 20:03:53 hpalin kernel: lost page write due to I/O error on sdc5
Oct 30 20:03:53 hpalin kernel: Buffer I/O error on device sdc5, logical block 17109
Oct 30 20:03:53 hpalin kernel: lost page write due to I/O error on sdc5
Oct 30 20:03:53 hpalin kernel: Buffer I/O error on device sdc5, logical block 17110
Oct 30 20:03:53 hpalin kernel: lost page write due to I/O error on sdc5
Oct 30 20:03:53 hpalin kernel: Buffer I/O error on device sdc5, logical block 17111
Oct 30 20:03:53 hpalin kernel: lost page write due to I/O error on sdc5
Oct 30 20:03:53 hpalin kernel: Buffer I/O error on device sdc5, logical block 17112
Oct 30 20:03:53 hpalin kernel: lost page write due to I/O error on sdc5
Oct 30 20:03:53 hpalin kernel: Buffer I/O error on device sdc5, logical block 17113
Oct 30 20:03:53 hpalin kernel: lost page write due to I/O error on sdc5
Oct 30 20:03:53 hpalin kernel: Buffer I/O error on device sdc5, logical block 17114
Oct 30 20:03:53 hpalin kernel: lost page write due to I/O error on sdc5
Oct 30 20:05:17 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
Oct 30 20:05:17 hpalin kernel: scsi1: Bus Reset detected, executing command 2fd14740, slot 2fd6064c, dsp 001d81e8[01e8]
Oct 30 20:05:17 hpalin kernel:  failing command because of reset, slot 2fd6064c, cmnd 2fd14740
Oct 30 20:07:34 hpalin kernel: end_request: I/O error, dev sdc, sector 4139844
Oct 30 20:07:34 hpalin kernel: printk: 58 messages suppressed.
Oct 30 20:07:34 hpalin kernel: Buffer I/O error on device sdc6, logical block 24883
Oct 30 20:07:34 hpalin kernel: lost page write due to I/O error on sdc6
Oct 30 20:07:34 hpalin kernel: Buffer I/O error on device sdc6, logical block 24884
Oct 30 20:07:34 hpalin kernel: lost page write due to I/O error on sdc6
Oct 30 20:07:34 hpalin kernel: Buffer I/O error on device sdc6, logical block 24885
Oct 30 20:07:34 hpalin kernel: lost page write due to I/O error on sdc6
Oct 30 20:07:34 hpalin kernel: Buffer I/O error on device sdc6, logical block 24886
Oct 30 20:07:34 hpalin kernel: lost page write due to I/O error on sdc6
Oct 30 20:07:34 hpalin kernel: Buffer I/O error on device sdc6, logical block 24887
Oct 30 20:07:34 hpalin kernel: lost page write due to I/O error on sdc6
Oct 30 20:12:42 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
Oct 30 20:12:42 hpalin kernel: scsi1: Bus Reset detected, executing command 2fd148a0, slot 2fd60520, dsp 001d81e8[01e8]
Oct 30 20:12:42 hpalin kernel:  failing command because of reset, slot 2fd60520, cmnd 2fd148a0
Oct 30 20:12:42 hpalin kernel:  failing command because of reset, slot 2fd6064c, cmnd 2fd14060
Oct 30 20:12:42 hpalin kernel:  failing command because of reset, slot 2fd60778, cmnd 2d22aba0
Oct 30 20:12:42 hpalin kernel:  failing command because of reset, slot 2fd608a4, cmnd 2d22a8e0
Oct 30 20:32:41 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
Oct 30 20:32:41 hpalin kernel: scsi1: Bus Reset detected, executing command 2fd14b60, slot 2fd60778, dsp 001d81e8[01e8]
Oct 30 20:32:41 hpalin kernel:  failing command because of reset, slot 2fd60520, cmnd 17cb2340
Oct 30 20:32:41 hpalin kernel:  failing command because of reset, slot 2fd60778, cmnd 2fd14b60
Oct 30 20:45:08 hpalin kernel: scsi1: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
Oct 30 20:45:08 hpalin kernel: scsi1: Bus Reset detected, executing command 2bdb0340, slot 2fd60778, dsp 001d81e8[01e8]
Oct 30 20:45:08 hpalin kernel:  failing command because of reset, slot 2fd60778, cmnd 2bdb0340
Oct 30 20:45:08 hpalin kernel:  failing command because of reset, slot 2fd608a4, cmnd 2fd14060

The apt-get operation was near complete:
just a pakage pakage failed to install, a quick check make me appear that postinst and postrm scripts were corrupted :(

But according to previous messages, should I doubt of the intergrity of this chroot disk or only those few files were corrupted?

Secondly the worst thing occured when I try a 'tar cslpf /chroot/Develop/linux-2.6.9-pa1.tar linux-2.6.9-pa1'
(the src linux tree standing on the internal disk using ncr driver and the target file standing on the external disk using 53c700 
driver):

numerous messages of style

          len = 6, cmd =scsi1 : destination target 3, lun 0
         command = 0x2a 00 00 53 3c 66 00 04 00 00
scsi1: Bus Reset detected, executing command 2bc09340, slot 2fd608a4, dsp 001d8] failing command because of reset, slot 2fd60520, 
cmnd 2fd14b60
  failing command because of reset, slot 2fd6064c, cmnd 2bc094a0
  failing command because of reset, slot 2fd60778, cmnd 2bc09b80
  failing command because of reset, slot 2fd608a4, cmnd 2bc09340

ending by the fatal:
Kernel panic - not syncing: drivers/parisc/ccio-dma.c: ccio_alloc_range() I/O M.

And at the reboot weird kernel announce:
[...]
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
scsi1 (0:0) New error handler wants to abort command
         scsi1 : destination target 0, lun 0
         command = 0x12 00 00 00 24 00
scsi1 (0:0) New error handler wants device reset
         scsi1 : destination target 0, lun 0
         command = 0x12 00 00 00 24 00
scsi1 (0:0) New error handler wants BUS reset, cmd 2fd2ab60
         scsi1 : destination target 0, lun 0
         command = 0x12 00 00 00 24 00
scsi1: Bus Reset detected, executing command 2fd2ab60, slot 2fd70520, dsp 001d8] failing command because of reset, slot 2fd70520, 
cmnd 2fd2ab60
  1:0:0:0: Illegal state transition created->quiesce
Badness in scsi_device_set_state at drivers/scsi/scsi_lib.c:1713
Backtrace:
  [<1025de58>] scsi_device_set_state+0xf8/0x1a8
  [<1025df1c>] scsi_device_quiesce+0x14/0x64
  [<102630ac>] spi_dv_device+0x70/0x1a8
  [<102631fc>] spi_dv_device_work_wrapper+0x18/0x3c
  [<10139514>] worker_thread+0x1ac/0x278
  [<1013e04c>] kthread+0xdc/0xe4
  [<1010dc5c>] ret_from_kernel_thread+0x1c/0x24

scsi1 (0:0) New error handler wants HOST reset
         scsi1 : destination target 0, lun 0
         command = 0x12 00 00 00 24 00
scsi: Device offlined - not ready after error recovery: host 1 channel 0 id 0 l0
   Vendor: SEAGATE   Model: ST34573W          Rev: HP11
   Type:   Direct-Access                      ANSI SCSI revision: 02
  target1:0:3: Beginning Domain Validation
scsi1: (3:0) Asynchronous
scsi1: (3:0) Enabling Tag Command Queuing
scsi1: (3:0) Synchronous at offset 8, period 100ns
  target1:0:3: Domain Validation skipping write tests
  target1:0:3: Ending Domain Validation
st: Version 20040403, fixed bufsize 32768, s/g segs 256
[...]

hmm, I try to reproduce the previous panic but I don't reach; this time only one:
  scsi1: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
scsi1: Bus Reset detected, executing command 2fd2aa00, slot 2fd70778, dsp 001d81e8[01e8]
  failing command because of reset, slot 2fd70778, cmnd 2fd2aa00

Thanks in advance for your advise,
     Joel
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From - Thu Nov 08 21:36:29 2018
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] stifb bugfixes against 2.6.10-rc1-bk9
Date: Sat, 30 Oct 2004 21:41:44 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:24999


 - Fix "sti= parameter ignored by stifb" bug (Stuart Brady)
 - Fix the STI crash with HCRX-24 in 32bpp mode (Helge Deller)

diff -urpNX dontdiff linux-2.6.10-rc1-bk9/drivers/video/stifb.c parisc-2.6-bk/drivers/video/stifb.c
--- linux-2.6.10-rc1-bk9/drivers/video/stifb.c	Fri Oct 22 15:40:35 2004
+++ parisc-2.6-bk/drivers/video/stifb.c	Sat Oct 30 09:31:49 2004
@@ -112,6 +112,7 @@ struct stifb_info {
 	ngle_rom_t ngle_rom;
 	struct sti_struct *sti;
 	int deviceSpecificConfig;
+	u32 pseudo_palette[16];
 };
 
 static int __initdata bpp = 8;	/* parameter from modprobe */
@@ -1030,6 +1031,14 @@ stifb_setcolreg(u_int regno, u_int red, 
 				/* 0x100 is same as used in WRITE_IMAGE_COLOR() */
 		START_COLORMAPLOAD(fb, lutBltCtl.all);
 		SETUP_FB(fb);
+
+		/* info->var.bits_per_pixel == 32 */
+		if (regno < 16) 
+		  ((u32 *)(info->pseudo_palette))[regno] =
+			(red   << info->var.red.offset)   |
+			(green << info->var.green.offset) |
+			(blue  << info->var.blue.offset);
+
 	} else {
 		/* cleanup colormap hardware */
 		FINISH_IMAGE_COLORMAP_ACCESS(fb);
@@ -1327,6 +1336,7 @@ stifb_init_fb(struct sti_struct *sti, in
 	info->screen_base = (void*) REGION_BASE(fb,1);
 	info->flags = FBINFO_DEFAULT;
 	info->currcon = -1;
+	info->pseudo_palette = &fb->pseudo_palette;
 
 	/* This has to been done !!! */
 	fb_alloc_cmap(&info->cmap, 256, 0);
@@ -1383,6 +1393,7 @@ int __init
 stifb_init(void)
 {
 	struct sti_struct *sti;
+	struct sti_struct *def_sti;
 	int i;
 	
 #ifndef MODULE
@@ -1397,9 +1408,19 @@ stifb_init(void)
 		return -ENXIO;
 	}
 	
+	def_sti = sti_get_rom(0);
+	if (def_sti) {
+		for (i = 1; i < MAX_STI_ROMS; i++) {
+			sti = sti_get_rom(i);
+			if (sti == def_sti && bpp > 0)
+				stifb_force_bpp[i] = bpp;
+		}
+		stifb_init_fb(def_sti, stifb_force_bpp[i]);
+	}
+
 	for (i = 1; i < MAX_STI_ROMS; i++) {
 		sti = sti_get_rom(i);
-		if (!sti)
+		if (!sti || sti==def_sti)
 			break;
 		if (bpp > 0)
 			stifb_force_bpp[i] = bpp;

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
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to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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 - Add the PARISC tag (Thibaut Varene)
 - Mark some existing PA-RISC specific entries with it (Thibaut Varene)
 - Document pdcchassis (Thibaut Varene)

diff -urpNX dontdiff linux-2.6.10-rc1-bk9/Documentation/kernel-parameters.txt parisc-2.6-bk/Documentation/kernel-parameters.txt
--- linux-2.6.10-rc1-bk9/Documentation/kernel-parameters.txt	Sat Oct 30 09:14:21 2004
+++ parisc-2.6-bk/Documentation/kernel-parameters.txt	Sat Oct 30 09:31:21 2004
@@ -53,6 +53,7 @@ restrictions referred to are that the re
 	NFS	Appropriate NFS support is enabled.
 	OSS	OSS sound support is enabled.
 	PARIDE	The ParIDE subsystem is enabled.
+	PARISC	The PA-RISC architecture is enabled.
 	PCI	PCI bus support is enabled.
 	PCMCIA	The PCMCIA subsystem is enabled.
 	PNP	Plug & Play support is enabled.
@@ -394,7 +395,7 @@ running once the system is up.
 	eicon=		[HW,ISDN] 
 			Format: <id>,<membase>,<irq>
 
-	eisa_irq_edge=	[PARISC]
+	eisa_irq_edge=	[PARISC,HW]
 			See header of drivers/parisc/eisa.c.
 
 	elanfreq=	[IA-32]
@@ -933,6 +934,11 @@ running once the system is up.
 	pd.		[PARIDE]
 			See Documentation/paride.txt.
 
+	pdcchassis=	[PARISC,HW] Disable/Enable PDC Chassis Status codes at
+			boot time.
+			Format: { 0 | 1 }
+			See arch/parisc/kernel/pdc_chassis.c
+
 	pf.		[PARIDE]
 			See Documentation/paride.txt.
 
@@ -1250,7 +1256,7 @@ running once the system is up.
 	st0x=		[HW,SCSI]
 			See header of drivers/scsi/seagate.c.
 
-	sti=		[HW]
+	sti=		[PARISC,HW]
 			Format: <num>
 			Set the STI (builtin display/keyboard on the HP-PARISC
 			machines) console (graphic card) which should be used

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] readb/__raw_readb/gsc_readb and ioremap
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I've been looking at asm/io.h (patch just committed).

I feel the need to explain a bit about what's going on because it seems
a little confused.

gsc_read/writeX:
 - Don't byteswap
 - Can be used on raw memory addresses (ie f-space)
__raw_read/writeX:
 - Don't byteswap
 - Should be used on ioremap'ed address
read/writeX:
 - Byteswap
 - Should be used on ioremap'ed address

It was the case that __raw_readl was the same as gsc_readl, but non-parisc
drivers are using __raw_readl now, so we have to change that.

At the moment, ioremap() is a nop.  That really ought to change, and
it's what the USE_HPPA_IOREMAP define is for.  There's at least one
problem with the USE_HPPA_IOREMAP code -- it doesn't byteswap.

So I've rearranged the code.  Now:

gsc_readl returns the value found at the physical address.
If USE_HPPA_IOREMAP is set, __raw_readl returns the value found at
the virtual address.  If not, it's a #define to gsc_readl.  readl is a
#define to byteswap the result from __raw_readl.

There's now prototypes for readX/writeX, so there's a lot of warnings
to clean up.  I suspect we should start by declaring parisc_device->hpa
to be a void __iomem * ... or maybe we should start by inventing a
parisc_iomap() interface.  Anyway, maybe I'll start trying to make
USE_HPPA_IOREMAP work next ...

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
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he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] readb/__raw_readb/gsc_readb and ioremap
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On Sun, Oct 31, 2004 at 03:39:50AM +0000, Matthew Wilcox wrote:
> __raw_read/writeX:
>  - Don't byteswap
>  - Should be used on ioremap'ed address
> read/writeX:
>  - Byteswap
>  - Should be used on ioremap'ed address

Willy confirmed there is another subtle difference between the
two sets of functions:
	__raw_read/writeX relax PCI ordering requirements.
	read/writeX enforce PCI Ordering requirements.

Willy correctly ignored this topic since parisc machines are strongly
ordered for IO as well (so far at least).
But I didn't want folks to think byte swapping was the only difference.

Be VERY careful of using __raw_XXX forms outside of parisc specific code.

grant
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> One of the problems with this crash is that enabling EARLY_CONSOLE
> doesn't help.  The exact same configuration boots fine in 32-bit mode.
> I'm building from the same tree (with O=) so there's no question of patch
> skew.  Turning on DISCONTIGMEM does not help.  The HPMC points inside
> the code generated by the save_general macro just past skip_save_ior
> inside the intr_save function in entry.S

i've found out some more info about this problem, but still no clue why
it's happening....

at the end of head.S, when we branch to virtual space, the first virtual
insn access (to start_kernel) causes a itlb miss fault (as expected).
For some reason, the itlb handler is not able to find the page for
start_kernel in the page table, so it attempts to call the fault handler
(handle_interruption, via intr_save). However, in intr_save, as soon as
we switch to virtual space (virt_map, right before the save_general
macro call), we immediately cause another itlb miss fault, which fails,
and calls intr_save again. Each time intr_save is called, we create a
new stack frame. Eventually, the stack pointer points past valid phys
addr space, and the machine HPMCs.

The question is, why does the itlb miss handler fail to find the mapping
for start_kernel? On my kernel, start_kernel is at 0x1056xxxx, which is
well within the 16MB initially mapped in head.S. I went through the code
in head.S several times and it seems to be correct. I also don't quite
understand how this part of the code, which is all in assembly, can
behave differently between gcc-3.3 and gcc-3.4. I tried to move the
initial-VM initialization code in head.S much closer to the rfi (with
the hypothesis that some intervening code had trashed the page table)
but that doesn't seem to help. I also had a theory that perhaps the
different gcc versions were expanding the #define's differently for
offsets.h, but that doesn't seem to be the case either... so i'm out of
ideas :( 

if it helps, what i see is that in L2_ptep, 
    ldw,s \index(\pmd),\pmd
is returning with \pmd == 0

weird....

randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
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Subject: Re: [parisc-linux] k-2.6.10-rc1-pa3 & c110: high data rate => Kernel
	panic - ...
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Xref: news.gmane.org gmane.linux.ports.parisc:25004

Hello James,
> 
> The serial console pb being fixed, I can now boot again my c110 with 
> recent 2.6.10-rc1-pa3 :)
> 
[...]
> 
> ending by the fatal:
> Kernel panic - not syncing: drivers/parisc/ccio-dma.c: 
> ccio_alloc_range() I/O M.
> 
> And at the reboot weird kernel announce:
> [...]
> 53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
> scsi1: 53c710 rev 2
> scsi1 : LASI SCSI 53c700
> scsi1 (0:0) New error handler wants to abort command
>         scsi1 : destination target 0, lun 0
>         command = 0x12 00 00 00 24 00
> scsi1 (0:0) New error handler wants device reset
>         scsi1 : destination target 0, lun 0
>         command = 0x12 00 00 00 24 00
> scsi1 (0:0) New error handler wants BUS reset, cmd 2fd2ab60
>         scsi1 : destination target 0, lun 0
>         command = 0x12 00 00 00 24 00
> scsi1: Bus Reset detected, executing command 2fd2ab60, slot 2fd70520, 
> dsp 001d8] failing command because of reset, slot 2fd70520, cmnd 2fd2ab60
>  1:0:0:0: Illegal state transition created->quiesce
> Badness in scsi_device_set_state at drivers/scsi/scsi_lib.c:1713
> Backtrace:
>  [<1025de58>] scsi_device_set_state+0xf8/0x1a8
>  [<1025df1c>] scsi_device_quiesce+0x14/0x64
>  [<102630ac>] spi_dv_device+0x70/0x1a8
>  [<102631fc>] spi_dv_device_work_wrapper+0x18/0x3c
>  [<10139514>] worker_thread+0x1ac/0x278
>  [<1013e04c>] kthread+0xdc/0xe4
>  [<1010dc5c>] ret_from_kernel_thread+0x1c/0x24
> 
> scsi1 (0:0) New error handler wants HOST reset
>         scsi1 : destination target 0, lun 0
>         command = 0x12 00 00 00 24 00
> scsi: Device offlined - not ready after error recovery: host 1 channel 0 
> id 0 l0
>   Vendor: SEAGATE   Model: ST34573W          Rev: HP11
>   Type:   Direct-Access                      ANSI SCSI revision: 02
>  target1:0:3: Beginning Domain Validation
> scsi1: (3:0) Asynchronous
> scsi1: (3:0) Enabling Tag Command Queuing
> scsi1: (3:0) Synchronous at offset 8, period 100ns
>  target1:0:3: Domain Validation skipping write tests
>  target1:0:3: Ending Domain Validation
> st: Version 20040403, fixed bufsize 32768, s/g segs 256
> [...]
> 
> hmm, I try to reproduce the previous panic but I don't reach; this time 
> only one:
>  scsi1: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
> scsi1: Bus Reset detected, executing command 2fd2aa00, slot 2fd70778, 
> dsp 001d81e8[01e8]
>  failing command because of reset, slot 2fd70778, cmnd 2fd2aa00
> 
Just a small update:
test 2.6.10-rc1-pa5 boot fine, but didn't solve lasi scsi ctrl:
scsi1: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG N
scsi1: Bus Reset detected, executing command 26fb04c0, slot 2fd6064c, dsp 001d8]
  failing command because of reset, slot 2fd60520, cmnd 2fd19740
  failing command because of reset, slot 2fd6064c, cmnd 26fb04c0
  failing command because of reset, slot 2fd60778, cmnd 2fd19b60
  failing command because of reset, slot 2fd608a4, cmnd 26fb0620
Incorrect number of segments after building list
counted 29, received 28
req nr_sec 1024, cur_nr_sec 8
Buffer I/O error on device sdc9, logical block 44761
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 44762
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 44763
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 44764
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 44765
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 44766
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 44767
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 44768
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 44769
lost page write due to I/O error on sdc9
Buffer I/O error on device sdc9, logical block 44770
lost page write due to I/O error on sdc9
Incorrect number of segments after building list
counted 22, received 21
req nr_sec 1024, cur_nr_sec 8

Just the ggg work-around (ccio_mem_ratio = 2;) seems to help.

Hth,
	Joel
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Subject: [parisc-linux] HP 712/80 and 64 MBit sims.
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Hello,

In http://www.openpa.net/systems/712.html, it says a 712/80 cannot coop with 
64MBit sims. It so happens I have those around (from a D210, 
http://www.openpa.net/systems/ultralight.html) and like to use them in the 712.

Can these sims be usefull to me? By providing just the supported 32 MByte? or 
even better, just provide all memory.

Or is it that these (rather large) sims just don't fit in the slim 712 case?

Has anyone experience with this? Is it possible the sims or the system can be 
ruined by just using it?



CBee
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As some of you may have noticed, I've been busily splitting and merging
our patches with Linus.  Excluding the patches I've sent today which
haven't been accepted yet (I expect he was up late watching the election
;-), here's the remaining to-merge list:

 - parisc_device
 - PDC_INITIATOR rewrite
 - PDC stable storage
 - iomap
 - ns87415
 - input (helge sent to vojtech recently)
 - tulip (vetoed by jgarzik)
 - pci early fixups (should go in via gregkh)
 - pcmcia (should go in via rmk)
 - sym2 (sent to linux-scsi recently)
 - ncr53c8xx trivial patch
 - serial (may now be obsolete)
 - smbfs CONFIG_UID16
 - compat_signal
 - printk/CON_BOOT mess
 - resource oneliner
 - shmem gcc 3.3 OPD workaround (pre-vetoed)
 - O= fix (obsoleted)

The current (400k) patch is at
http://www.parisc-linux.org/~willy/parisc-2.6.10-rc1-bk13-a.diff

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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From: =?ISO-8859-1?Q?Corn=E9_Beerse?= <cbeerse@lycos.nl>
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Subject: Re: [parisc-linux] HP 712/80 and 64 MBit sims.
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Corn Beerse wrote:

> Hello,
> 
> In http://www.openpa.net/systems/712.html, it says a 712/80 cannot coop 
> with 64MBit sims. It so happens I have those around (from a D210, 
> http://www.openpa.net/systems/ultralight.html) and like to use them in 
> the 712.
> 
> Can these sims be usefull to me? By providing just the supported 32 
> MByte? or even better, just provide all memory.
> 
> Or is it that these (rather large) sims just don't fit in the slim 712 
> case?
> 
> Has anyone experience with this? Is it possible the sims or the system 
> can be ruined by just using it?
> 

My own experience so far:

Physically, they don't fit: the modules are 1 or 2 millimeters to high to close 
the box without any damage.

The modules do fit nice in the connectors however... As someone pointet out, the 
64MBit modules form the D210 have connectors at both sides and the connector in 
the 712 only connects to one side. Unfortunatly, it is NOT a design where the 
module is just presented as 2, half-sized, modules as I silently hoped...

In the end, the 712 saw something in the connectors but found to many errors to 
actually do something with it, other than complaining about defective memory 
modules.

If someone likes the memory modules (2 modules of 64MBit each, suitable for a 
D210), or even like to pick-up the entire D210 in Leiden, The Netherlands, 
please reply. It comes with 700/96 terminal, disk, tape etc.



CBee

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On Sun, Nov 07, 2004 at 12:57:53PM +0000, Joel Soete wrote:
> This is a very first proposal because:
> 	a) BUG_ON() is not anymore conditional

Exactly, this is exactly why I'm not enthusiastic about replacing
ASSERT with BUG_ON. ASSERT is intended to catch developement bugs
that I know will not occur in production. Having the BUG_ON will
only slow down the production kernel in those cases.

So some BUG_ON are ok, but not a wholesale replacement of ASSERTs.
I'll apply the patch and then delete BUG_ON that I don't think
we need.

> 	b) I would like to change a bit such:
> [...]
> 	BUG_ON(pages_mapped == 0);
> 	BUG_ON((pages_mapped * PAGE_SIZE) >= DMA_CHUNK_SIZE);
> 	BUG_ON(pages_mapped >= (BITS_PER_LONG - PAGE_SHIFT));
> [...]
> into
> 	BUG_ON((pages_mapped == 0) || \
> 		((pages_mapped * PAGE_SIZE) >= DMA_CHUNK_SIZE) || \
> 		(pages_mapped >= (BITS_PER_LONG - PAGE_SHIFT));
> [...]

Please don't do this.
Then we won't know which part of the condition failed.

thanks,
grant
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On Mon, Nov 08, 2004 at 12:05:02AM +0000, Matthew Wilcox wrote:
> GCC warns about this.

Ok - I didn't know that. 
Thanks for pointing this out.

I expect it wouldn't generate warnings in this case because arguments
to macros typically have extra parens around them. But in general,
I can stop doing this for kernel code since -Wall is on.

> So I think this is an invalid objection.

Agreed. I'll change the offending code.

thanks,
grant
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On Sun, Nov 07, 2004 at 02:39:42PM -0700, Grant Grundler wrote:
> I'm rejecting this patch because of this.
> I write (0 == foo) to avoid "foo = 0" mistakes.

GCC warns about this.

$ gcc -Wall test.c
test.c: In function `main':
test.c:3: warning: suggest parentheses around assignment used as truth value
$ cat test.c
int main(int argc, char **argv)
{
        if (argc = 1)
                return 1;
        return 0;
}

So I think this is an invalid objection.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Hello all,

This smp kernel 64bits boot fine on my n4k :) (Thanks Matthew)
and also as up 64bits on my b2k but when I try to build modules I encount=
er
the following pb:
 hppa64-linux-gcc -Wp,-MD,net/ipv4/netfilter/.ipt_hashlimit.o.d -nostdinc=

-iwithprefix include -D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes -W=
no-trigraphs
-fno-strict-aliasing -fno-common -O2 -fomit-frame-pointer -pipe -mno-spac=
e-regs
-mfast-indirect-calls -ffunction-sections -march=3D2.0 -mschedule=3D8000 =
-Wdeclaration-after-statement
  -DMODULE -DKBUILD_BASENAME=3Dipt_hashlimit -DKBUILD_MODNAME=3Dipt_hashl=
imit
-c -o net/ipv4/netfilter/ipt_hashlimit.o net/ipv4/netfilter/ipt_hashlimit=
.c
net/ipv4/netfilter/ipt_hashlimit.c: In function `__dsthash_find':
net/ipv4/netfilter/ipt_hashlimit.c:124: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c: In function `__dsthash_free':
net/ipv4/netfilter/ipt_hashlimit.c:173: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c: In function `htable_selective_cleanup=
':
net/ipv4/netfilter/ipt_hashlimit.c:261: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:261: structure has no member named `l'=

net/ipv4/netfilter/ipt_hashlimit.c:261: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:269: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:269: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:269: structure has no member named `l'=

net/ipv4/netfilter/ipt_hashlimit.c: In function `hashlimit_match':
net/ipv4/netfilter/ipt_hashlimit.c:460: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:460: structure has no member named `l'=

net/ipv4/netfilter/ipt_hashlimit.c:460: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:469: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:469: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:469: structure has no member named `l'=

net/ipv4/netfilter/ipt_hashlimit.c:482: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:482: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:482: structure has no member named `l'=

net/ipv4/netfilter/ipt_hashlimit.c:493: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:493: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:493: structure has no member named `l'=

net/ipv4/netfilter/ipt_hashlimit.c:497: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:497: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:497: structure has no member named `l'=

net/ipv4/netfilter/ipt_hashlimit.c: In function `dl_seq_start':
net/ipv4/netfilter/ipt_hashlimit.c:572: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:572: structure has no member named `l'=

net/ipv4/netfilter/ipt_hashlimit.c:572: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c: In function `dl_seq_stop':
net/ipv4/netfilter/ipt_hashlimit.c:606: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:606: structure has no member named `lo=
cked_by'
net/ipv4/netfilter/ipt_hashlimit.c:606: structure has no member named `l'=

make[3]: *** [net/ipv4/netfilter/ipt_hashlimit.o] Error 1
make[2]: *** [net/ipv4/netfilter] Error 2
make[1]: *** [net/ipv4] Error 2
make: *** [net] Error 2

I know you shoulld be busy to fix cvs pb so I would just like to know if
fixed in a  bk (and I will wait for) or if not I will have to check.

Thanks in advance for advise,
    Joel

-------------------------------------------------------------------------=
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> -- Original Message --
> Date: Mon, 8 Nov 2004 18:00:50 +0100
> From: "Joel Soete" <soete.joel@tiscali.be>
> To: parisc-linux@parisc-linux.org
> Cc: 
> Subject: [parisc-linux] pb to build modules on b2k for k-2.6.10-rc1-pa1=
0
> 
> 
> Hello all,
> 
> This smp kernel 64bits boot fine on my n4k :) (Thanks Matthew)
> and also as up 64bits on my b2k but when I try to build modules I encou=
nter
> the following pb:
>  hppa64-linux-gcc -Wp,-MD,net/ipv4/netfilter/.ipt_hashlimit.o.d -nostdi=
nc
> -iwithprefix include -D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes
-Wno-trigraphs
> -fno-strict-aliasing -fno-common -O2 -fomit-frame-pointer -pipe -mno-sp=
ace-regs
> -mfast-indirect-calls -ffunction-sections -march=3D2.0 -mschedule=3D800=
0 -Wdeclaration-after-statement
>   -DMODULE -DKBUILD_BASENAME=3Dipt_hashlimit -DKBUILD_MODNAME=3Dipt_has=
hlimit
> -c -o net/ipv4/netfilter/ipt_hashlimit.o net/ipv4/netfilter/ipt_hashlim=
it.c
> net/ipv4/netfilter/ipt_hashlimit.c: In function `__dsthash_find':
> net/ipv4/netfilter/ipt_hashlimit.c:124: structure has no member named
`locked_by'
> net/ipv4/netfilter/ipt_hashlimit.c: In function `__dsthash_free':
[...]
> net/ipv4/netfilter/ipt_hashlimit.c:606: structure has no member named
`locked_by'
> net/ipv4/netfilter/ipt_hashlimit.c:606: structure has no member named
`locked_by'
> net/ipv4/netfilter/ipt_hashlimit.c:606: structure has no member named
`l'
> make[3]: *** [net/ipv4/netfilter/ipt_hashlimit.o] Error 1
> make[2]: *** [net/ipv4/netfilter] Error 2
> make[1]: *** [net/ipv4] Error 2
> make: *** [net] Error 2
> 
The work around is:
<http://www.spinics.net/lists/kernel/msg309637.html>

(i.e. "Disable NETFILTER_DEBUG for now.")

Hth,
    Joel

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Subject: [parisc-linux] repo corrupt again
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The linux-2.6 archive is corrupt again:

cvs [commit aborted]: EOF in value in RCS file /var/cvs/linux-2.6/arch/m68knommu
/lib/divsi3.S,v

I've renamed linux-2.6 to linux-2.6-corrupt.  It'll need to be fixed.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
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he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: 2.6.10-rc1-pa16 still panic on c110 [WAS: [parisc-linux] c110
	panic when try to boot 2.6.10-rc1-pa11?]
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On Sun, Nov 21, 2004 at 04:18:26PM +0000, Joel Soete wrote:
> That works far better: no more panic at boot time :))

good. I think the other problems you are have are either real HW problems,
bugs in the driver or bugs in the hard disk firmware.
You can rule out some of the hard disk firmware bugs by checking for
newer versions of the firmware either at HP's site (URL
is in the parisc-linux FAQ) or disk vendor's site.

Real HW might be "fixed" by a "low level format".
See scsiformat in scsitools package.

grant
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Subject: Re: 2.6.10-rc1-pa16 still panic on c110 [WAS: [parisc-linux] c110
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Hello Grant,

Just a short followup:

Grant Grundler wrote:
> On Sun, Nov 21, 2004 at 04:18:26PM +0000, Joel Soete wrote:
> 
>>That works far better: no more panic at boot time :))
> 
> 
> good. I think the other problems you are have are either real HW problems,
I used one of the latest support+ cd I had (hpux 11.0 March 2003) and ODE DISKUTIL (I am not a hp engineer so I can get passwd for 
DISKEXPT, as well as LASIDIAG) (so that I don't have change system) but it doesn't detect any read error :(

> bugs in the driver or bugs in the hard disk firmware.

> You can rule out some of the hard disk firmware bugs by checking for
> newer versions of the firmware either at HP's site (URL
> is in the parisc-linux FAQ) 
Unfortunately I didn't find any fw upgrade available for this 'SEAGATE ST34573W' (presently fw revision HP11) into 
<ftp://us-ffs.external.hp.com/firmware_patches/hp/disk/catalog> and http://itrc.hp.com/ is unavailable right now :(

> or disk vendor's site.
> 
It's a hp disk supply so I would prefer a hp 'patch'

> Real HW might be "fixed" by a "low level format".
> See scsiformat in scsitools package.
> 
I will see as ultimate solution ;)

Thanks,
	Joel
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Subject: [parisc-linux] [2.6 patch] i386/x86_64/parisc process.c: make
	hlt_counter static
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Xref: news.gmane.org gmane.linux.ports.parisc:25016

The patch below makes a needlessly global variable static.


diffstat output:
 arch/i386/kernel/process.c   |    2 +-
 arch/parisc/kernel/process.c |    2 +-
 arch/x86_64/kernel/process.c |    2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)


Signed-off-by: Adrian Bunk <bunk@stusta.de>

--- linux-2.6.10-rc2-mm4-full/arch/i386/kernel/process.c.old	2004-12-06 01:25:27.000000000 +0100
+++ linux-2.6.10-rc2-mm4-full/arch/i386/kernel/process.c	2004-12-06 01:25:38.000000000 +0100
@@ -60,7 +60,7 @@
 
 asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
 
-int hlt_counter;
+static int hlt_counter;
 
 unsigned long boot_option_idle_override = 0;
 EXPORT_SYMBOL(boot_option_idle_override);
--- linux-2.6.10-rc2-mm4-full/arch/parisc/kernel/process.c.old	2004-12-06 01:25:55.000000000 +0100
+++ linux-2.6.10-rc2-mm4-full/arch/parisc/kernel/process.c	2004-12-06 01:26:01.000000000 +0100
@@ -54,7 +54,7 @@
 #include <asm/uaccess.h>
 #include <asm/unwind.h>
 
-int hlt_counter;
+static int hlt_counter;
 
 /*
  * Power off function, if any
--- linux-2.6.10-rc2-mm4-full/arch/x86_64/kernel/process.c.old	2004-12-06 01:26:17.000000000 +0100
+++ linux-2.6.10-rc2-mm4-full/arch/x86_64/kernel/process.c	2004-12-06 01:26:28.000000000 +0100
@@ -53,7 +53,7 @@
 
 unsigned long kernel_thread_flags = CLONE_VM | CLONE_UNTRACED;
 
-atomic_t hlt_counter = ATOMIC_INIT(0);
+static atomic_t hlt_counter = ATOMIC_INIT(0);
 
 unsigned long boot_option_idle_override = 0;
 EXPORT_SYMBOL(boot_option_idle_override);

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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] [RFT] Remove {,un}mask_irq()
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Xref: news.gmane.org gmane.linux.ports.parisc:25017


mask_irq/unmask_irq are no longer part of the kernel API.  The only place
we were calling it can be replaced by disable_irq/enable_irq, I think.
Boots fine on my c3600, but it needs testing on lasi/wax/dino machines.

Index: arch/parisc/kernel/irq.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/irq.c,v
retrieving revision 1.17
diff -u -p -r1.17 irq.c
--- arch/parisc/kernel/irq.c	5 Dec 2004 23:38:02 -0000	1.17
+++ arch/parisc/kernel/irq.c	6 Dec 2004 04:02:53 -0000
@@ -85,22 +85,6 @@ static void enable_cpu_irq(void *unused,
         on_each_cpu(cpu_set_eiem, (void *) cpu_eiem, 1, 1);
 }
 
-/* mask and disable are the same at the CPU level
-** Difference is enable clears pending interrupts
-*/
-#define mask_cpu_irq	disable_cpu_irq
-
-static inline void unmask_cpu_irq(void *unused, int irq)
-{
-	unsigned long eirr_bit = EIEM_MASK(irq);
-	cpu_eiem |= eirr_bit;
-	/* NOTE: sending an IPI will cause do_cpu_irq_mask() to
-	** handle *any* unmasked pending interrupts.
-	** ie We don't need to check for pending interrupts here.
-	*/
-        on_each_cpu(cpu_set_eiem, (void *) cpu_eiem, 1, 1);
-}
-
 /*
  * XXX cpu_irq_actions[] will become 2 dimensional for per CPU EIR support.
  * correspond changes needed in:
@@ -126,8 +110,6 @@ struct irq_region cpu0_irq_region = {
 	.ops	= {
 			.disable_irq	= disable_cpu_irq,
 			.enable_irq	= enable_cpu_irq,
-			.mask_irq	= unmask_cpu_irq,
-			.unmask_irq	= unmask_cpu_irq
 	},
 	.data	= {
 			.dev		= &cpu_data[0],
@@ -145,36 +127,10 @@ struct irq_region *irq_region[NR_IRQ_REG
 
 /*
 ** Generic interfaces that device drivers can use:
-**    mask_irq()	block IRQ
-**    unmask_irq()	re-enable IRQ and trigger if IRQ is pending
 **    disable_irq()	block IRQ
 **    enable_irq()	clear pending and re-enable IRQ
 */
 
-void mask_irq(int irq)
-{
-	struct irq_region *region;
-
-	DBG_IRQ(irq, ("mask_irq(%d) %d+%d eiem 0x%lx\n", irq,
-				IRQ_REGION(irq), IRQ_OFFSET(irq), cpu_eiem));
-	irq = irq_canonicalize(irq);
-	region = irq_region[IRQ_REGION(irq)];
-	if (region->ops.mask_irq)
-		region->ops.mask_irq(region->data.dev, IRQ_OFFSET(irq));
-}
-
-void unmask_irq(int irq)
-{
-	struct irq_region *region;
-
-	DBG_IRQ(irq, ("unmask_irq(%d) %d+%d eiem 0x%lx\n", irq,
-				IRQ_REGION(irq), IRQ_OFFSET(irq), cpu_eiem));
-	irq = irq_canonicalize(irq);
-	region = irq_region[IRQ_REGION(irq)];
-	if (region->ops.unmask_irq)
-		region->ops.unmask_irq(region->data.dev, IRQ_OFFSET(irq));
-}
-
 void disable_irq(int irq)
 {
 	struct irq_region *region;
@@ -495,9 +451,9 @@ void do_irq_mask(unsigned long mask, str
 		mask &= ~bit;	/* clear bit in mask - can exit loop sooner */
 		irq_num = region->data.irqbase + irq;
 
-		mask_irq(irq_num);
+		disable_irq(irq_num);
 		do_irq(&region->action[irq], irq_num, regs);
-		unmask_irq(irq_num);
+		enable_irq(irq_num);
 	}
 }
 
@@ -549,11 +505,6 @@ struct irq_region *alloc_irq_region( int
 			IRQ_PER_REGION, name, count));
 	    count = IRQ_PER_REGION;
 	}
-
-	/* if either mask *or* unmask is set, both have to be set. */
-	if((ops->mask_irq || ops->unmask_irq) &&
-		!(ops->mask_irq && ops->unmask_irq))
-			return NULL;
 
 	/* ditto for enable/disable */
 	if( (ops->disable_irq || ops->enable_irq) &&
Index: drivers/parisc/dino.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/dino.c,v
retrieving revision 1.20
diff -u -p -r1.20 dino.c
--- drivers/parisc/dino.c	29 Oct 2004 13:08:47 -0000	1.20
+++ drivers/parisc/dino.c	6 Dec 2004 04:03:03 -0000
@@ -299,7 +299,7 @@ struct pci_port_ops dino_port_ops = {
 };
 
 static void
-dino_mask_irq(void *irq_dev, int irq)
+dino_disable_irq(void *irq_dev, int irq)
 {
 	struct dino_device *dino_dev = DINO_DEV(irq_dev);
 
@@ -318,16 +318,23 @@ dino_mask_irq(void *irq_dev, int irq)
 	}
 }
 
-
 static void
-dino_unmask_irq(void *irq_dev, int irq)
+dino_enable_irq(void *irq_dev, int irq)
 {
 	struct dino_device *dino_dev = DINO_DEV(irq_dev);
 	u32 tmp;
 
 	DBG(KERN_WARNING "%s(0x%p, %d)\n", __FUNCTION__, irq_dev, irq);
 
-	if (NULL == irq_dev || irq > DINO_IRQS) {
+	/*
+	** clear pending IRQ bits
+	**
+	** This does NOT change ILR state!
+	** See comment below for ILR usage.
+	*/
+	gsc_readl(dino_dev->hba.base_addr+DINO_IPR);
+
+	if (irq > DINO_IRQS) {
 		printk(KERN_WARNING "%s(): %d not a dino irq?\n",
 				__FUNCTION__, irq);
 		BUG();
@@ -356,29 +363,9 @@ dino_unmask_irq(void *irq_dev, int irq)
 }
 
 
-
-static void
-dino_enable_irq(void *irq_dev, int irq)
-{
-	struct dino_device *dino_dev = DINO_DEV(irq_dev);
-
-	/*
-	** clear pending IRQ bits
-	**
-	** This does NOT change ILR state!
-	** See comments in dino_unmask_irq() for ILR usage.
-	*/
-	gsc_readl(dino_dev->hba.base_addr+DINO_IPR);
-
-	dino_unmask_irq(irq_dev, irq);
-}
-
-
 static struct irq_region_ops dino_irq_ops = {
-	.disable_irq	= dino_mask_irq,	/* ??? */
+	.disable_irq	= dino_disable_irq,
 	.enable_irq	= dino_enable_irq, 
-	.mask_irq	= dino_mask_irq,
-	.unmask_irq	= dino_unmask_irq
 };
 
 
Index: drivers/parisc/eisa.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/eisa.c,v
retrieving revision 1.7
diff -u -p -r1.7 eisa.c
--- drivers/parisc/eisa.c	22 Feb 2004 15:38:50 -0000	1.7
+++ drivers/parisc/eisa.c	6 Dec 2004 04:03:03 -0000
@@ -180,45 +180,14 @@ static void eisa_enable_irq(void *irq_de
 	EISA_DBG("pic1 mask %02x\n", eisa_in8(0xa1));
 }
 
-static void eisa_mask_irq(void *irq_dev, int irq)
-{
-	unsigned long flags;
-	EISA_DBG("mask irq %d\n", irq);
-	
-        /* mask irq */
-	spin_lock_irqsave(&eisa_irq_lock, flags);
-	if (irq & 8) {
-		slave_mask |= (1 << (irq&7));
-		eisa_out8(slave_mask, 0xa1);
-	} else {
-		master_mask |= (1 << (irq&7));
-		eisa_out8(master_mask, 0x21);
-	}
-	spin_unlock_irqrestore(&eisa_irq_lock, flags);
-}
-
-static void eisa_unmask_irq(void *irq_dev, int irq)
-{
-	unsigned long flags;
-	EISA_DBG("unmask irq %d\n", irq);
-        
-	/* unmask */
-	spin_lock_irqsave(&eisa_irq_lock, flags);
-	if (irq & 8) {
-		slave_mask &= ~(1 << (irq&7));
-		eisa_out8(slave_mask, 0xa1);
-	} else {
-		master_mask &= ~(1 << (irq&7));
-		eisa_out8(master_mask, 0x21);
-	}
-	spin_unlock_irqrestore(&eisa_irq_lock, flags);
-}
-
 static struct irqaction action[IRQ_PER_REGION];
 
 /* EISA needs to be fixed at IRQ region #0 (EISA_IRQ_REGION) */
 static struct irq_region eisa_irq_region = {
-	.ops	= { eisa_disable_irq, eisa_enable_irq, eisa_mask_irq, eisa_unmask_irq },
+	.ops	= {
+		.disable_irq = eisa_disable_irq,
+		.enable_irq = eisa_enable_irq
+	},
 	.data	= { .name = "EISA", .irqbase = 0 },
 	.action	= action,
 };
Index: drivers/parisc/gsc.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/gsc.c,v
retrieving revision 1.3
diff -u -p -r1.3 gsc.c
--- drivers/parisc/gsc.c	10 Mar 2004 19:24:48 -0000	1.3
+++ drivers/parisc/gsc.c	6 Dec 2004 04:03:03 -0000
@@ -139,29 +139,12 @@ busdev_enable_irq(void *irq_dev, int irq
 
 /* FIXME: read IPR to make sure the IRQ isn't already pending.
 **   If so, we need to read IRR and manually call do_irq_mask().
-**   This code should be shared with busdev_unmask_irq().
-*/
-}
-
-static void
-busdev_mask_irq(void *irq_dev, int irq)
-{
-/* FIXME: Clear the IMR bit in busdev for that IRQ */
-}
-
-static void
-busdev_unmask_irq(void *irq_dev, int irq)
-{
-/* FIXME: Read IPR. Set the IMR bit in busdev for that IRQ.
-   call do_irq_mask() if IPR is non-zero
 */
 }
 
 struct irq_region_ops busdev_irq_ops = {
 	.disable_irq =	busdev_disable_irq,
 	.enable_irq =	busdev_enable_irq,
-	.mask_irq =	busdev_mask_irq,
-	.unmask_irq =	busdev_unmask_irq
 };
 
 
Index: drivers/parisc/iosapic.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/iosapic.c,v
retrieving revision 1.11
diff -u -p -r1.11 iosapic.c
--- drivers/parisc/iosapic.c	17 Nov 2004 22:17:42 -0000	1.11
+++ drivers/parisc/iosapic.c	6 Dec 2004 04:03:05 -0000
@@ -856,25 +856,9 @@ printk("\n");
 }
 
 
-static void
-iosapic_mask_irq(void *dev, int irq)
-{
-	BUG();
-}
-
-
-static void
-iosapic_unmask_irq(void *dev, int irq)
-{
-	BUG();
-}
-
-
 static struct irq_region_ops iosapic_irq_ops = {
 	.disable_irq =	iosapic_disable_irq,
 	.enable_irq =	iosapic_enable_irq,
-	.mask_irq =	iosapic_mask_irq,
-	.unmask_irq =	iosapic_unmask_irq
 };
 
 
Index: drivers/parisc/superio.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/superio.c,v
retrieving revision 1.13
diff -u -p -r1.13 superio.c
--- drivers/parisc/superio.c	5 Dec 2004 16:50:53 -0000	1.13
+++ drivers/parisc/superio.c	6 Dec 2004 04:03:05 -0000
@@ -316,23 +316,9 @@ superio_enable_irq(void *dev, int local_
 }
 
 
-static void
-superio_mask_irq(void *dev, int local_irq)
-{
-	BUG();
-}
-
-static void
-superio_unmask_irq(void *dev, int local_irq)
-{
-	BUG();
-}
-
 static struct irq_region_ops superio_irq_ops = {
 	.disable_irq =	superio_disable_irq,
 	.enable_irq =	superio_enable_irq,
-	.mask_irq =	superio_mask_irq,
-	.unmask_irq =	superio_unmask_irq
 };
 
 #ifdef DEBUG_SUPERIO_INIT
Index: include/asm-parisc/irq.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/irq.h,v
retrieving revision 1.4
diff -u -p -r1.4 irq.h
--- include/asm-parisc/irq.h	5 Dec 2004 23:38:02 -0000	1.4
+++ include/asm-parisc/irq.h	6 Dec 2004 04:03:14 -0000
@@ -48,8 +48,6 @@
 struct irq_region_ops {
 	void (*disable_irq)(void *dev, int irq);
 	void (* enable_irq)(void *dev, int irq);
-	void (*   mask_irq)(void *dev, int irq);
-	void (* unmask_irq)(void *dev, int irq);
 };
 
 struct irq_region_data {

-- 
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On Mon, Dec 06, 2004 at 04:10:14AM +0000, Matthew Wilcox wrote:
> mask_irq/unmask_irq are no longer part of the kernel API.

IIRC, there was a semantic difference between unmask IRQ and enable_irq().
The former preserved pending interrupts and the latter did not.
Did the semantics change or am I not remembering correctly?

thanks,
grant
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scooter:/sys/bus# ls */drivers/
eisa/drivers/:
hp100  sim710

parisc/drivers/:
Apricot  Dino              GSC SCSI (Zalon)  Lasi RS232  Serial RS232
Asp      EISA Bus Adapter  HP SDC            Lasi SCSI   Wax
CPU      GSC PS2           Lasi              Parallel    sti (native)

pci/drivers/:
acenic  hp100  parport_pc  serial  sti (pci)  sym53c8xx  tulip

platform/drivers/:
serial8250

scsi/drivers/:
sd  sr  st

serio/drivers/:
hil_kbd  hil_ptr

I'm going to go through and clean up our driver names.  In particular:
 - lower-case
 - replace spaces with underscores
 - eliminate brackets
 - choose better names

Here's my current thoughts:

parisc/drivers/:
apricot  dino      zalon      lasi_8250  serial_8250
asp      eisa      sdc        lasi_scsi  wax
cpu      gsc_ps2   lasi_core  parport    sti

pci/drivers/:
acenic  hp100  parport_pc  serial  sti  sym53c8xx  tulip

ISTR at one point, sti had to be disambiguated because sysfs would try
to create two directories in the same directory, but it looks like it
doesn't any more.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: [parisc-linux] Linux 2.6, 712-workstation and (no) keyboard
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Hello,

Recently I found time to update my 712 workstation to kernel version 2.6.x. Most 
recent kernels I tried from http://cvs.parisc-linux.org/download/linux-2.6/ or 
build from source, don't give me a keyboard at the console.

Is this something I have to define, like re-create device files with mkdev?

Is something changed? I recall messages on using special pa-ps2 code v.s. 
default linux ps2 code. Should a new 712-config file suit my needs? Which 
options to try/test/use?

Or is it still work in progress? Then: what's the status and can I contribute?

At build-time and/or boot-time I donnot see any alarming messages like failing 
builds or links or such.



CBee

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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] Generic IRQ support
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I've been looking at using the new generic IRQ code for PA, and I think
we can do it.

The irq_regions code has to go, of course.  The data structures used by
the generic code are just incompatible.  So the new scheme looks like
this:

An irq number is just a small integer.  Skipping 0-15 as being legacy
isa/eisa/suckyio (maybe) interrupts, we start allocating irq numbers
at 16.  Each interrupt (as opposed to each interrupt region) has its own
vector of irq operations.  Mostly they'll be the same, but this lets us
allocate the irq numbers in an arbitrary way.

Machines with iosapic have one CPU interrupt per iosapic interrupt,
so we can get rid of the hierarchy.  The iosapic still needs to be told
that we've finished processing the interrupt, but that can be done by
the ->end method.

Native devices (such as Zalon/Bluefish) also need no hierarchy.  They
just take a CPU interrupt.

For lasi/dino/wax/asp (hereinafter referred to as lasi), we really do
have hierarchical interrupts.  So lasi will take a native interrupt,
then reads the status register, translates that to a Linux interrupt
number and calls __do_irq() again.

EISA is just as much fun, only it goes through an additional layer of
indirection; we call wax's IRQ handler which decodes its status register
and calls the EISA interrupt handler, which decodes its status register
and calls the driver's interrupt handler.

I intend to get iosapic & suckyio working under this scheme, then post
what I have.  At that point, someone else can step in and do old-gsc
devices ;-)

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Generic IRQ support
Date: Thu, 9 Dec 2004 22:51:40 -0700
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On Thu, Dec 09, 2004 at 03:29:44PM +0000, Matthew Wilcox wrote:
> 
> I've been looking at using the new generic IRQ code for PA, and I think
> we can do it.

Yes - it's certainly feasible.
I've proposed something similar several years ago:
    http://lists.parisc-linux.org/pipermail/parisc-linux/2000-October/009640.html

Last year Thibaut Varene and I even took a run at it.
Our goal was to pickup/add generic support for IRQ affinity.
We got ~60% done after a few monthes but ran out of time.

> The irq_regions code has to go, of course.  The data structures used by
> the generic code are just incompatible.  So the new scheme looks like
> this:
> 
> An irq number is just a small integer.  Skipping 0-15 as being legacy
> isa/eisa/suckyio (maybe) interrupts, we start allocating irq numbers
> at 16.  Each interrupt (as opposed to each interrupt region) has its own
> vector of irq operations.  Mostly they'll be the same, but this lets us
> allocate the irq numbers in an arbitrary way.

yup - that should work fine.

> 
> Machines with iosapic have one CPU interrupt per iosapic interrupt,
> so we can get rid of the hierarchy.  The iosapic still needs to be told
> that we've finished processing the interrupt, but that can be done by
> the ->end method.

We can't entirely get rid of the hierarchy.
There are configurations where we might have to share a CPU EIR.
Since N-class is working now, I'm mostly concerned about it on that
class of platform. Especially if we want to support MSI or MSI-X.

> Native devices (such as Zalon/Bluefish) also need no hierarchy.  They
> just take a CPU interrupt.
> 
> For lasi/dino/wax/asp (hereinafter referred to as lasi), we really do
> have hierarchical interrupts.  So lasi will take a native interrupt,
> then reads the status register, translates that to a Linux interrupt
> number and calls __do_irq() again.
> 
> EISA is just as much fun, only it goes through an additional layer of
> indirection; we call wax's IRQ handler which decodes its status register
> and calls the EISA interrupt handler, which decodes its status register
> and calls the driver's interrupt handler.
> 
> I intend to get iosapic & suckyio working under this scheme, then post
> what I have.  At that point, someone else can step in and do old-gsc
> devices ;-)

You probably want to look at the source tree from Thibaut since
that's basically the same approach we took then...most of the
changes should still apply.
Please poke (gently) if I can help.

thanks,
grant
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From: Matthew Wilcox <matthew@wil.cx>
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 Matthew Wilcox <matthew@wil.cx>
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On Thu, Dec 09, 2004 at 10:51:40PM -0700, Grant Grundler wrote:
> Yes - it's certainly feasible.
> I've proposed something similar several years ago:
>     http://lists.parisc-linux.org/pipermail/parisc-linux/2000-October/009640.html
> 
> Last year Thibaut Varene and I even took a run at it.
> Our goal was to pickup/add generic support for IRQ affinity.
> We got ~60% done after a few monthes but ran out of time.

I found
http://lists.parisc-linux.org/pipermail/parisc-linux/2004-August/024593.html
but I couldn't find the patch that was referenced there.

> > Machines with iosapic have one CPU interrupt per iosapic interrupt,
> > so we can get rid of the hierarchy.  The iosapic still needs to be told
> > that we've finished processing the interrupt, but that can be done by
> > the ->end method.
> 
> We can't entirely get rid of the hierarchy.
> There are configurations where we might have to share a CPU EIR.
> Since N-class is working now, I'm mostly concerned about it on that
> class of platform. Especially if we want to support MSI or MSI-X.

Once we start to hit problems like this (more than 64 interrupts per CPU),
we can write some code to reintroduce a hierarchy, I guess.

> You probably want to look at the source tree from Thibaut since
> that's basically the same approach we took then...most of the
> changes should still apply.
> Please poke (gently) if I can help.

If you could find that work ...

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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The apt-versions of Mozilla & Firefox have never worked for me, so I've
recently been looking into the codebase. Compiling with the current
toolchain (gcc-3.3) was painless, however it was necessary to slightly
modify the XPCOM HP-UX/HP-CC code for it to work with gcc & parisc-linux.
Some platform spesific code is required to make XPCOM (and consequently
Mozilla/Firefox) work on any combination of OS/compiler/architecture.
XPCOM calls virtual funtions direcly, using the vtable pointers (not via
the runtime).

Anyway, after applying these modifications Firefox 1.0 runs nicely on my
C3000. If  these issues are not resolved in the apt versions of
mozilla/firefox, I will submit my patches,

cheers,
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> Anyway, after applying these modifications Firefox 1.0 runs nicely on my
> C3000. If  these issues are not resolved in the apt versions of
> mozilla/firefox, I will submit my patches,

Awesome!  Could you post your patch.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Ok, here it comes - the patches are against firefox 1.0 (release),
although I believe any recent release will work.

apply executing

patch -d ./mozilla/xpcom/reflect/xptcall/src/md/unix/ < <whatever filename of the patch>

in the directory you extracted the Firefox tarball.

You will also need a .mozconfig file before building. Mine contains the
following (might not work for you, these are not "normal" parameters):

export MOZ_PHOENIX=1
mk_add_options MOZ_PHOENIX=1

ac_add_options --disable-ldap
ac_add_options --disable-mailnews
ac_add_options --enable-extensions=cookie,xml-rpc,xmlextras,pref,transformiix,universalchardet,webservices,inspector,gnomevfs,negotiateauth
ac_add_options --enable-crypto
ac_add_options --disable-composer
ac_add_options --enable-single-profile
ac_add_options --disable-profilesharing
ac_add_options --enable-optimize=-O2
ac_add_options --disable-debug
ac_add_options --enable-static
ac_add_options --disable-shared
ac_add_options --disable-tests

ac_add_options --enable-default-toolkit=gtk2
ac_add_options --enable-freetype2

mk_add_options MOZ_OBJDIR=/usr/tmp

Remeber to export MOZCONFIG=<path to your .mozconfig file> before
executing

make -f client.mk build

in the mozilla directory

More information on builing Firefox is available on the mozilla.org
site.

Please note that this patch is VERY preliminary - thus, any feedbak is
welcome,


diff -N -u ./mozilla/xpcom/reflect/xptcall/src/md/unix/Makefile.in /home/user/mozilla/xpcom/reflect/xptcall/src/md/unix/Makefile.in
--- ./mozilla/xpcom/reflect/xptcall/src/md/unix/Makefile.in	2004-04-22 22:50:05.000000000 +0200
+++ /home/user/mozilla/xpcom/reflect/xptcall/src/md/unix/Makefile.in	2004-12-18 00:00:29.807917680 +0100
@@ -167,6 +167,19 @@
 endif
 endif

+#
+# Linux/HPPA/GCC
+#
+ifeq ($(OS_ARCH),Linux)
+ifeq ($(OS_TEST), parisc)
+ifeq ($(CC),gcc)
+CPPSRCS		:= xptcinvoke_pa32.cpp xptcstubs_pa32.cpp
+ASFILES		:= xptcstubs_asm_parisc_linux.s
xptcinvoke_asm_parisc_linux.s
+endif
+endif
+endif
+
+
 ######################################################################
 # M68k
 ######################################################################
diff -N -u ./mozilla/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_parisc_linux.s home/user/mozilla/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_parisc_linux.s
--- ./mozilla/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_parisc_linux.s	1970-01-01 01:00:00.000000000 +0100
+++ /home/user/mozilla/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_parisc_linux.s	2004-12-17 00:00:10.000000000 +0100
@@ -0,0 +1,128 @@
+
+	.LEVEL 1.1
+	.text
+	.align 4
+
+framesz:
+	.equ 128
+
+; XPTC_InvokeByIndex(nsISuppots* that, PRUint32 methodIndex,
+;   PRUint32 paramCount, nsXPTCVariant* params);
+
+.globl XPTC_InvokeByIndex
+	.type XPTC_InvokeByIndex, @function
+
+
+XPTC_InvokeByIndex:
+  	.PROC
+	.CALLINFO FRAME=72, CALLER,SAVE_RP, SAVE_SP, ENTRY_GR=3
+	.ENTRY
+
+ ; frame marker takes 48 bytes,
+ ; register spill area takes 8 bytes,
+ ; local stack area takes 72 bytes result in 128 bytes total
+
+        STW          %rp,-20(%sp)
+        STW,MA       %r3,128(%sp)
+
+        LDO     -framesz(%r30),%r28
+        STW     %r28,-4(%r30)       ; save previous sp
+        STW     %r19,-32(%r30)
+
+        STW     %r26,-36-framesz(%r30)  ; save argument registers in
+        STW     %r25,-40-framesz(%r30)  ; in PREVIOUS frame
+        STW     %r24,-44-framesz(%r30)  ;
+        STW     %r23,-48-framesz(%r30)  ;
+
+;	B,L     .+8,%r2
+;	ADDIL   L'invoke_count_bytes-$PIC_pcrel$1+4,%r2,%r1
+;    ;    LDO     R'invoke_count_bytes-$PIC_pcrel$2+8(%r1),%r1
+;$PIC_pcrel$1
+;        LDSID   (%r1),%r31
+;$PIC_pcrel$2
+;        MTSP    %r31,%sr0
+
+	.CALL   ARGW0=GR,ARGW1=GR,ARGW2=GR ;in=24,25,26;out=28
+        BL    invoke_count_bytes,%r31
+        COPY    %r31,%r2
+
+        CMPIB,>=        0,%r28, .+76
+        COPY    %r30,%r3            ; copy stack ptr to saved stack ptr
+        ADD     %r30,%r28,%r30      ; extend stack frame
+        LDW     -4(%r3),%r28        ; move frame
+        STW     %r28,-4(%r30)
+        LDW     -8(%r3),%r28
+        STW     %r28,-8(%r30)
+        LDW     -12(%r3),%r28
+        STW     %r28,-12(%r30)
+        LDW     -16(%r3),%r28
+        STW     %r28,-16(%r30)
+        LDW     -20(%r3),%r28
+        STW     %r28,-20(%r30)
+        LDW     -24(%r3),%r28
+        STW     %r28,-24(%r30)
+        LDW     -28(%r3),%r28
+        STW     %r28,-28(%r30)
+        LDW     -32(%r3),%r28
+        STW     %r28,-32(%r30)
+
+        LDO     -40(%r30),%r26         ; load copy address
+        LDW     -44-framesz(%r3),%r25  ; load rest of 2 arguments
+        LDW     -48-framesz(%r3),%r24  ;
+
+        LDW     -32(%r30),%r19 ; shared lib call destroys r19; reload
+;        B,L     .+8,%r2
+;        ADDIL   L'invoke_copy_to_stack-$PIC_pcrel$3+4,%r2,%r1
+;        LDO     R'invoke_copy_to_stack-$PIC_pcrel$4+8(%r1),%r1
+;$PIC_pcrel$3
+;        LDSID   (%r1),%r31
+;$PIC_pcrel$4
+;        MTSP    %r31,%sr0
+        .CALL   ARGW0=GR,ARGW1=GR,ARGW2=GR ;in=24,25,26
+        BL    invoke_copy_to_stack,%r31
+        COPY    %r31,%r2
+
+        LDO     -48(%r30),%r20
+        EXTRW,U,= %r28,31,1,%r22
+        FLDD    0(%r20),%fr7  ; load double arg 1
+        EXTRW,U,= %r28,30,1,%r22
+        FLDW    8(%r20),%fr5L ; load float arg 1
+        EXTRW,U,= %r28,29,1,%r22
+        FLDW    4(%r20),%fr6L ; load float arg 2
+        EXTRW,U,= %r28,28,1,%r22
+        FLDW    0(%r20),%fr7L ; load float arg 3
+
+        LDW     -36-framesz(%r3),%r26  ; load ptr to 'that'
+        LDW     -40(%r30),%r25  ; load the rest of dispatch argument registers
+        LDW     -44(%r30),%r24
+        LDW     -48(%r30),%r23
+
+        LDW     -36-framesz(%r3),%r20  ; load vtable addr
+        LDW     -40-framesz(%r3),%r28  ; load index
+        LDW     0(%r20),%r20    ; follow vtable
+;        LDO     0(%r20),%r20   ; offset vtable by 16 bytes (g++: 8, aCC: 16)
+        SH2ADDL %r28,%r20,%r28  ; add 4*index to vtable entry
+        LDW     0(%r28),%r22    ; load vtable entry
+
+;        B,L     .+8,%r2
+;        ADDIL   L'$$dyncall_external-$PIC_pcrel$5+4,%r2,%r1
+;        LDO     R'$$dyncall_external-$PIC_pcrel$6+8(%r1),%r1
+;$PIC_pcrel$5
+;        LDSID   (%r1),%r31
+;$PIC_pcrel$6
+;        MTSP    %r31,%sr0
+        .CALL ARGW0=GR,ARGW1=GR,ARGW2=GR,ARGW3=GR,RTNVAL=GR ;in=22-26;out=28;
+        BL    $$dyncall,%r31
+        COPY    %r31,%r2
+
+        LDW     -32(%r30),%r19
+        COPY    %r3,%r30              ; restore saved stack ptr
+
+        LDW          -148(%sp),%rp
+        LDWM       -128(%sp),%r3
+	BV,N             (%rp)
+	NOP
+   .EXIT
+  .PROCEND  ;in=23,24,25,26;
+  .SIZE XPTC_InvokeByIndex, .-XPTC_InvokeByIndex
+
diff -N -u ./mozilla/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_parisc_linux.s /home/user/mozilla/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_parisc_linux.s
--- mozilla/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_parisc_linux.s	1970-01-01 01:00:00.000000000 +0100
+++ /home/user/mozilla/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_parisc_linux.s	2004-12-16 23:59:59.000000000 +0100
@@ -0,0 +1,73 @@
+        .LEVEL  1.1
+	.TEXT
+	.ALIGN 4
+
+curframesz:
+	.EQU 128
+
+
+; SharedStub has stack size of 128 bytes
+
+lastframesz:
+	.EQU 64
+
+; the StubN C++ function has a small stack size of 64 bytes
+
+
+.globl SharedStub
+	.type SharedStub, @function
+
+SharedStub:
+        .PROC
+        .CALLINFO CALLER,FRAME=80,SAVE_RP
+
+  .ENTRY
+        STW     %rp,-20(%sp)
+        LDO     128(%sp),%sp
+
+        STW     %r19,-32(%r30)
+        STW     %r26,-36-curframesz(%r30) ; save arg0 in previous frame
+
+        LDO     -80(%r30),%r28
+        FSTD,MA %fr5,8(%r28)   ; save darg0
+        FSTD,MA %fr7,8(%r28)   ; save darg1
+        FSTW,MA %fr4L,4(%r28)  ; save farg0
+        FSTW,MA %fr5L,4(%r28)  ; save farg1
+        FSTW,MA %fr6L,4(%r28)  ; save farg2
+        FSTW,MA %fr7L,4(%r28)  ; save farg3
+
+        ; Former value of register 26 is already properly saved by StubN,
+        ; but register 25-23 are not because of the arguments mismatch
+        STW     %r25,-40-curframesz-lastframesz(%r30) ; save r25
+        STW     %r24,-44-curframesz-lastframesz(%r30) ; save r24
+        STW     %r23,-48-curframesz-lastframesz(%r30) ; save r23
+        COPY    %r26,%r25                             ; method index is arg1
+        LDW     -36-curframesz-lastframesz(%r30),%r26 ; self is arg0
+        LDO     -40-curframesz-lastframesz(%r30),%r24 ; normal args is arg2
+        LDO     -80(%r30),%r23                        ; floating args is arg3
+
+;       BL      .+8,%r2
+;       ADDIL   L'PrepareAndDispatch-$PIC_pcrel$0+4,%r2
+;        LDO     R'PrepareAndDispatch-$PIC_pcrel$1+8(%r1),%r1
+;$PIC_pcrel$0
+;        LDSID   (%r1),%r31
+;$PIC_pcrel$1
+;        MTSP    %r31,%sr0
+        .CALL   ARGW0=GR,ARGW1=GR,ARGW2=GR,ARGW3=GR,RTNVAL=GR ;in=23-26;out=28;
+        BL     PrepareAndDispatch, %r31
+        COPY    %r31,%r2
+
+        LDW     -32(%r30),%r19
+
+        LDW     -148(%sp),%rp
+        LDO     -128(%sp),%sp
+
+
+	BV,N     (%rp)
+	NOP
+	NOP
+
+	.EXIT
+        .PROCEND        ;in=26;out=28;
+
+	.SIZE SharedStub, .-SharedStub




On Fri, 17 Dec 2004, John David Anglin wrote:

> > Anyway, after applying these modifications Firefox 1.0 runs nicely on my
> > C3000. If  these issues are not resolved in the apt versions of
> > mozilla/firefox, I will submit my patches,
>
> Awesome!  Could you post your patch.
>
> Dave
> --
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
>
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On Fri, Dec 17, 2004 at 11:26:57PM +0100, Ivar wrote:
> The apt-versions of Mozilla & Firefox have never worked for me, so I've
> recently been looking into the codebase. Compiling with the current
> toolchain (gcc-3.3) was painless, however it was necessary to slightly
> modify the XPCOM HP-UX/HP-CC code for it to work with gcc & parisc-linux.
> Some platform spesific code is required to make XPCOM (and consequently
> Mozilla/Firefox) work on any combination of OS/compiler/architecture.
> XPCOM calls virtual funtions direcly, using the vtable pointers (not via
> the runtime).
> 
> Anyway, after applying these modifications Firefox 1.0 runs nicely on my
> C3000. If  these issues are not resolved in the apt versions of
> mozilla/firefox, I will submit my patches,

Wow! This is awesome! Many thanks!

Randolph, Dave and myself had all given mozilla a couple of whacks, but
never quite got the XPCOM code working properly. Even with some
experimental code to enable XPCOM using libffi (thanks to Randolph),
similar to ia64, we had problems with the XUL code.

I appreciate the effort! This has been on my usability todo list for
ages!

c.

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As of now the patch is still very experimental - I'll devote some more
spare time for this during christmas.

Recently, I've also done some naive attemts to port the Xorg/XFree mga
driver to parisc - with the exception of a few minor bugs (displacement of
the HW accelerated cursor), it works OK - so, I have my hopes up for this
too :)

However, a biggerproblem with Xorg (as I see it) is that it's not
natively ported to parisc.

	-Ivar

On Sun, 19 Dec 2004, Carlos O'Donell wrote:

> On Fri, Dec 17, 2004 at 11:26:57PM +0100, Ivar wrote:
> > The apt-versions of Mozilla & Firefox have never worked for me, so I've
> > recently been looking into the codebase. Compiling with the current
> > toolchain (gcc-3.3) was painless, however it was necessary to slightly
> > modify the XPCOM HP-UX/HP-CC code for it to work with gcc & parisc-linux.
> > Some platform spesific code is required to make XPCOM (and consequently
> > Mozilla/Firefox) work on any combination of OS/compiler/architecture.
> > XPCOM calls virtual funtions direcly, using the vtable pointers (not via
> > the runtime).
> >
> > Anyway, after applying these modifications Firefox 1.0 runs nicely on my
> > C3000. If  these issues are not resolved in the apt versions of
> > mozilla/firefox, I will submit my patches,
>
> Wow! This is awesome! Many thanks!
>
> Randolph, Dave and myself had all given mozilla a couple of whacks, but
> never quite got the XPCOM code working properly. Even with some
> experimental code to enable XPCOM using libffi (thanks to Randolph),
> similar to ia64, we had problems with the XUL code.
>
> I appreciate the effort! This has been on my usability todo list for
> ages!
>
> c.
>
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Xref: news.gmane.org gmane.linux.ports.parisc:25029

This is a multi-part message in MIME format.
--------------080503010407060206040807
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Hello,

In the past weeks, I've spend some time refining the .config file for building 
kernels for a 712-workstation. With the help of this list I got it all working.

The config file uses modules, but not for stuff that is usable for booting.

Since I don't have a cvs-account (and donnot see myself as a developer) I cannot 
upload this file to the cvs. If someone else can, please do.


Thanks.


CBee

--------------080503010407060206040807
Content-Type: text/plain;
 name="config-2.6.10-rc3-pa8.712.modules"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="config-2.6.10-rc3-pa8.712.modules"

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.10-rc3-pa8
# Fri Dec 17 22:45:48 2004
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y

#
# Code maturity level options
#
# CONFIG_EXPERIMENTAL is not set
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y

#
# General setup
#
CONFIG_LOCALVERSION="_712_modules"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
CONFIG_SYSCTL=y
# CONFIG_AUDIT is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_HOTPLUG is not set
CONFIG_KOBJECT_UEVENT=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_EMBEDDED is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_FUTEX=y
CONFIG_EPOLL=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SHMEM=y
CONFIG_CC_ALIGN_FUNCTIONS=0
CONFIG_CC_ALIGN_LABELS=0
CONFIG_CC_ALIGN_LOOPS=0
CONFIG_CC_ALIGN_JUMPS=0
# CONFIG_TINY_SHMEM is not set

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_OBSOLETE_MODPARM=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y

#
# Processor type and features
#
# CONFIG_PA7000 is not set
CONFIG_PA7100LC=y
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
# CONFIG_PA8X00 is not set
CONFIG_PA11=y
# CONFIG_64BIT is not set
# CONFIG_SMP is not set
# CONFIG_PREEMPT is not set
# CONFIG_HPUX is not set

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
# CONFIG_HPPB is not set
# CONFIG_IOMMU_CCIO is not set
CONFIG_GSC_LASI=y
# CONFIG_GSC_WAX is not set
# CONFIG_EISA is not set
# CONFIG_PCI is not set
# CONFIG_CHASSIS_LCD_LED is not set
# CONFIG_PDC_CHASSIS is not set

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set

#
# Parallel port support
#
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_PC_CML1=m
CONFIG_PARPORT_GSC=m
# CONFIG_PARPORT_OTHER is not set
# CONFIG_PARPORT_1284 is not set

#
# Plug and Play support
#

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_PARIDE is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=y
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=6144
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_CDROM_PKTCDVD is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y

#
# ATA/ATAPI/MFM/RLL support
#
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=y

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set

#
# SCSI Transport Attributes
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set

#
# SCSI low-level drivers
#
# CONFIG_SCSI_SATA is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
CONFIG_SCSI_LASI700=y
CONFIG_53C700_MEM_MAPPED=y
CONFIG_53C700_LE_ON_BE=y
# CONFIG_SCSI_ZALON is not set
# CONFIG_SCSI_DEBUG is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set

#
# Fusion MPT device support
#

#
# IEEE 1394 (FireWire) support
#

#
# I2O device support
#

#
# Networking support
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_NETLINK_DEV=y
CONFIG_UNIX=y
CONFIG_NET_KEY=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_SYN_COOKIES is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_TUNNEL=m
CONFIG_IP_TCPDIAG=m
# CONFIG_IP_TCPDIAG_IPV6 is not set
# CONFIG_NETFILTER is not set
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set
# CONFIG_NET_CLS_ROUTE is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_LASI_82596=y

#
# Ethernet (1000 Mbit)
#

#
# Ethernet (10000 Mbit)
#

#
# Token Ring devices
#

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# ISDN subsystem
#
# CONFIG_ISDN is not set

#
# Telephony Support
#
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input I/O drivers
#
# CONFIG_GAMEPORT is not set
CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_PARKBD is not set
CONFIG_SERIO_GSCPS2=y
# CONFIG_HP_SDC is not set
# CONFIG_SERIO_RAW is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_ATKBD_HP_KEYCODES is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_HIL_OLD is not set
# CONFIG_KEYBOARD_HIL is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_HIL is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_SERIAL_NONSTANDARD is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_CONSOLE is not set
CONFIG_SERIAL_8250_NR_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MUX is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_TIPAR is not set

#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_GEN_RTC=m
CONFIG_GEN_RTC_X=y
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_RAW_DRIVER is not set

#
# I2C support
#
# CONFIG_I2C is not set

#
# Dallas's 1-wire bus
#
# CONFIG_W1 is not set

#
# Misc devices
#

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set

#
# Graphics support
#
CONFIG_FB=y
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set
CONFIG_FB_STI=y
# CONFIG_FB_VIRTUAL is not set

#
# Console display driver support
#
CONFIG_STI_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y

#
# Logo configuration
#
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_LOGO_PARISC_CLUT224=y

#
# Sound
#
CONFIG_SOUND=m

#
# Advanced Linux Sound Architecture
#
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
# CONFIG_SND_SEQUENCER is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set

#
# Generic devices
#
CONFIG_SND_DUMMY=m
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set

#
# GSC devices
#
CONFIG_SND_HARMONY=m

#
# Open Sound System
#
# CONFIG_SOUND_PRIME is not set

#
# USB support
#
# CONFIG_USB_ARCH_HAS_HCD is not set
# CONFIG_USB_ARCH_HAS_OHCI is not set

#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information
#

#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
# CONFIG_EXT3_FS_POSIX_ACL is not set
# CONFIG_EXT3_FS_SECURITY is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_QUOTA is not set
CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_ZISOFS_FS=y
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_SYSFS=y
# CONFIG_DEVPTS_FS_XATTR is not set
# CONFIG_TMPFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y

#
# Miscellaneous filesystems
#
# CONFIG_HFSPLUS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set

#
# Network File Systems
#
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_TCP=y
CONFIG_ROOT_NFS=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=y
CONFIG_SUNRPC=y
CONFIG_SMB_FS=m
# CONFIG_SMB_NLS_DEFAULT is not set
CONFIG_CIFS=m
# CONFIG_CIFS_STATS is not set
# CONFIG_CIFS_XATTR is not set
# CONFIG_CIFS_POSIX is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y

#
# Native Language Support
#
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set

#
# Kernel hacking
#
# CONFIG_DEBUG_KERNEL is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set

#
# Cryptographic options
#
CONFIG_CRYPTO=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_NULL=m
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=m
CONFIG_CRYPTO_SHA1=m
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_WP512 is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_TEST is not set

#
# Library routines
#
CONFIG_CRC_CCITT=m
CONFIG_CRC32=y
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m

--------------080503010407060206040807
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_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
--------------080503010407060206040807--



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On Sun, 19 Dec 2004, Carlos O'Donell wrote:

> > However, a biggerproblem with Xorg (as I see it) is that it's not
> > natively ported to parisc.
>
> I haven't built the Xorg tree yet, still using XFree86 until I have some
> free time. What loader is the Xorg tree using? I assume it still has the
> builtin ELF loader with symbol hacks? In which case you need to do
> relocation handling, and we never ported this :)
>

I had no problems building/running Xorg - for me the build just worked
right away ?

Here, I'm talking about the driver/hardware pieces of Xorg - which
contain lots of platform specific code. As we know, Xorg/XFree drivers
(except fbdev) interact directly with the graphics hardware, which makes
for instance endianness, an issue. Each supported platform has its
own set of io-access funtions declared/defined - however no such funtions
are defined for the hppa architecture.

A first step in the process of porting the native Xorg/XFree drivers to
parisc is therefore to add raw io access methods. mmap() from userspace
works, but I got a bit uncertain when I saw that memory-mapped io is disabled in
the kernel.

How's the memory-mapped io development going?

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On Sun, Dec 19, 2004 at 10:53:09PM +0100, Ivar wrote:
> As of now the patch is still very experimental - I'll devote some more
> spare time for this during christmas.
> 
> Recently, I've also done some naive attemts to port the Xorg/XFree mga
> driver to parisc - with the exception of a few minor bugs (displacement of
> the HW accelerated cursor), it works OK - so, I have my hopes up for this
> too :)
> 
> However, a biggerproblem with Xorg (as I see it) is that it's not
> natively ported to parisc.

I haven't built the Xorg tree yet, still using XFree86 until I have some
free time. What loader is the Xorg tree using? I assume it still has the
builtin ELF loader with symbol hacks? In which case you need to do
relocation handling, and we never ported this :)

c.

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Subject: [parisc-linux] 2.6.10-pa1 build failure [drivers/serial/mux.c]
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this hunk is bum:
--- LINUS_2_6_10/drivers/serial/mux.c
+++ CVS2_6_10_PA1/drivers/serial/mux.c
-       port->irq   = SERIAL_IRQ_NONE;
+       port->irq   = NO_IRQ;

NO_IRQ isnt defined in any headers, but the serial_core.c has a similar hunk:

--- LINUS_2_6_10/drivers/serial/serial_core.c
+++ CVS2_6_10_PA1/drivers/serial/serial_core.c
+#ifndef NO_IRQ
+#define NO_IRQ (-1)
+#endif
+   if (port->irq == NO_IRQ) {
-mike
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seems to be a new bug because building a 2.6.8.1-pa7 kernel with same .config 
works fine while a 2.6.10-pa1 panics ;(

find attached:
2.6.10-pa1-scsi-panic - dmesg output from scsi driver up through panic
2.6.8.1-pa11-dmesg - scsi dmesg output from a good kernel
config.bz2 - my .config from 2.6.10-pa1

build system:
gcc-3.3.5 + binutils-2.15.92.0.2
-mike

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sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18m
elevator: using anticipatory as default io scheduler
  Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:6:0: tagged command queuing enabled, command queue depth 16.
 target0:0:6: Beginning Domain Validation
sym0:6: wide asynchronous.
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
 target0:0:6: Domain Validation skipping write tests
 target0:0:6: Ending Domain Validation
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
  Vendor: WDIGTL    Model: WDE9150 ULTRA3    Rev: 1.30
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:9:0: tagged command queuing enabled, command queue depth 16.
 target0:0:9: Beginning Domain Validation
sym0:9: asynchronous.
sym0:9: wide asynchronous.
Backtrace:
 [<102a51a8>] sym_ppr_nego+0x44/0xe0
 [<1029d6ec>] sym53c8xx_intr+0x30/0x80
 [<10106ca8>] do_irq+0x158/0x160
 [<102424d4>] dino_isr+0xf0/0x100
 [<10106ca8>] do_irq+0x158/0x160
 [<10106dac>] do_cpu_irq_mask+0xfc/0x10c
 [<1010c068>] intr_return+0x0/0x14
 [<1022ab20>] idr_get_new_above_int+0x98/0x15c
 [<1017442c>] generic_permission+0xa8/0x1a0
 [<10162ca0>] shmem_symlink+0x1d8/0x244
 [<1017758c>] vfs_rmdir+0x12c/0x254
 [<10112744>] cpu_idle+0x38/0x3c
 [<10440804>] start_kernel+0x1b8/0x1e4


Kernel Fault: Code=13 regs=10434640 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001110 Not tainted
r00-03  00000000 ffffffff 104345c8 00000000
r04-07  10fbd000 00000000 00000010 00000001
r08-11  0000000a 10fbd310 00000009 00000000
r12-15  103ff810 00000000 000000fd f0100000
r16-19  10434140 f0000154 f000014c 02625a00
r20-23  fffffffc 00000000 ffffffff 104345c9
r24-27  0000000a 00000000 01312cff 103d3010
r28-31  000000fa 10400188 10434640 102a0810
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1023112c 10231130
 IIR: b3202000    ISR: 10240001  IOR: 0d034630
 CPU:        0   CR30: 10434000 CR31: 10438000
 ORIG_R28: 00000000
 IAOQ[0]: $$divU+0xc/0x210
 IAOQ[1]: $$divU+0x10/0x210
 RP(r2): 0x104345c8
Kernel panic - not syncing: Kernel Fault
 <0>Rebooting in 3 seconds..

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sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18j
Using anticipatory io scheduler
  Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:6:0: tagged command queuing enabled, command queue depth 16.
scsi(0:0:6:0): Beginning Domain Validation
sym0:6: wide asynchronous.
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
scsi(0:0:6:0): Domain Validation skipping write tests
scsi(0:0:6:0): Ending Domain Validation
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
  Vendor: WDIGTL    Model: WDE9150 ULTRA3    Rev: 1.30
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:9:0: tagged command queuing enabled, command queue depth 16.
scsi(0:0:9:0): Beginning Domain Validation
sym0:9: FAST-20 SCSI 20.0 MB/s ST (50.0 ns, offset 16)
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
scsi(0:0:9:0): Write Buffer failure 8000002
scsi(0:0:9:0): Domain Validation detected failure, dropping back
sym0:9: FAST-10 WIDE SCSI 20.0 MB/s ST (100.0 ns, offset 16)
scsi(0:0:9:0): Write Buffer failure 8000002
scsi(0:0:9:0): Domain Validation detected failure, dropping back
sym0:9: FAST-10 WIDE SCSI 13.5 MB/s ST (148.0 ns, offset 16)
scsi(0:0:9:0): Write Buffer failure 8000002
scsi(0:0:9:0): Domain Validation detected failure, dropping back
sym0:9: FAST-5 WIDE SCSI 8.9 MB/s ST (224.0 ns, offset 16)
scsi(0:0:9:0): Write Buffer failure 8000002
scsi(0:0:9:0): Domain Validation detected failure, dropping back
sym0:9: wide asynchronous.
sym0:9:0:M_REJECT to send for : 1-3-1-57-10.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
scsi(0:0:9:0): Write Buffer failure 8000002
scsi(0:0:9:0): Domain Validation detected failure, dropping back
sym0:9: wide asynchronous.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
scsi(0:0:9:0): Write Buffer failure 8000002
scsi(0:0:9:0): Domain Validation detected failure, dropping back
sym0:9: wide asynchronous.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
scsi(0:0:9:0): Write Buffer failure 8000002
scsi(0:0:9:0): Domain Validation Failure, dropping back to Asynchronous
scsi(0:0:9:0): Ending Domain Validation
sym0:9: wide asynchronous.
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
  Vendor: TOSHIBA   Model: CD-ROM XM-5301TA  Rev: 1895
  Type:   CD-ROM                             ANSI SCSI revision: 02
scsi(1:0:2:0): Beginning Domain Validation
scsi1: (2:0) Asynchronous
scsi1: (2:0) Synchronous at offset 8, period 236ns
scsi(1:0:2:0): Domain Validation skipping write tests
scsi(1:0:2:0): Ending Domain Validation
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sdb: 17873040 512-byte hdwr sectors (9151 MB)
SCSI device sdb: drive cache: write back
 sdb: unknown partition table
Attached scsi disk sdb at scsi0, channel 0, id 9, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 6, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 9, lun 0,  type 0
Attached scsi generic sg2 at scsi1, channel 0, id 2, lun 0,  type 5
STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f1ff0000 (64 kB), fb at f6000000 (32 MB)
    id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
    graphics card name: PCI_GRAFFITIX1280

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On Sun, Dec 26, 2004 at 02:12:19AM -0500, Mike Frysinger wrote:
> this hunk is bum:
> --- LINUS_2_6_10/drivers/serial/mux.c
> +++ CVS2_6_10_PA1/drivers/serial/mux.c
> -       port->irq   = SERIAL_IRQ_NONE;
> +       port->irq   = NO_IRQ;
> 
> NO_IRQ isnt defined in any headers, but the serial_core.c has a similar hunk:

include/asm-parisc/irq.h defines NO_IRQ.  The hack in serial_core.c
is there because I build the parisc tree on a bunch of different
architectures (mostly i386 and ia64), and not everyone is defining
NO_IRQ yet.  There was a discussion about it on the linux-arch mailing
list and Ben Herrenschmidt is supposed to be driving it.  He's been
busy; I was just switching us over prematurely.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] linux-2.6.10-pa1 panic on C360 in SCSI driver
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On Sun, Dec 26, 2004 at 05:04:40AM -0500, Mike Frysinger wrote:
> seems to be a new bug because building a 2.6.8.1-pa7 kernel with same .config 
> works fine while a 2.6.10-pa1 panics ;(

I suspect any 2.6.9 kernel will work fine and some of the earlier
2.6.10-rc too.  At some stage, I may invite you to do a binary search
to figure out what patch caused this problem ... but see below first.

> 2.6.10-pa1-scsi-panic - dmesg output from scsi driver up through panic
> 2.6.8.1-pa11-dmesg - scsi dmesg output from a good kernel

This is good -- very helpful.

> sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
> sym0: No NVRAM, ID 7, Fast-20, SE, parity checking

The 875 only supports wide ultra scsi (ie, FAST-20, 40MB/s).

>  target0:0:6: Beginning Domain Validation
> sym0:6: wide asynchronous.
> sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
>  target0:0:6: Domain Validation skipping write tests
>  target0:0:6: Ending Domain Validation

... successful negotiation with the IBM drive

> sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
>   Vendor: WDIGTL    Model: WDE9150 ULTRA3    Rev: 1.30
>   Type:   Direct-Access                      ANSI SCSI revision: 03
> sym0:9:0: tagged command queuing enabled, command queue depth 16.
>  target0:0:9: Beginning Domain Validation
> sym0:9: asynchronous.
> sym0:9: wide asynchronous.
> Backtrace:
>  [<102a51a8>] sym_ppr_nego+0x44/0xe0
>  [<1029d6ec>] sym53c8xx_intr+0x30/0x80
>  [<10106ca8>] do_irq+0x158/0x160

... we got an interrupt and died processing it.

> Kernel Fault: Code=13 regs=10434640 (Addr=00000000)

 	 13  	 	 	 	 Conditional trap

>  IAOQ[0]: $$divU+0xc/0x210
>  IAOQ[1]: $$divU+0x10/0x210

I guess we tried to divide by zero.

Looking at the stack dump (a couple of layers are missing, is this because
of tail-call optimisations?), we received a PPR message from the device.
Now, devices aren't supposed to send unsolicited PPR messages, so either
we're mistakenly asking it to do PPR or the device is breaking the spec.

Let's find out which; can you enable negotiation debugging by passing:

sym53c8xx.debug=0x200

on the kernel command line?  If it's a module, then do:

modprobe sym53c8xx debug=0x200

[2.6.8.1-pa9 boot log]:
> sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
> sym0: No NVRAM, ID 7, Fast-20, SE, parity checking

> sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
>   Vendor: WDIGTL    Model: WDE9150 ULTRA3    Rev: 1.30
>   Type:   Direct-Access                      ANSI SCSI revision: 03
> sym0:9:0: tagged command queuing enabled, command queue depth 16.
> scsi(0:0:9:0): Beginning Domain Validation
> sym0:9: FAST-20 SCSI 20.0 MB/s ST (50.0 ns, offset 16)
> sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
> scsi(0:0:9:0): Write Buffer failure 8000002
> scsi(0:0:9:0): Domain Validation detected failure, dropping back

Fascinating.  Need to debug why this is going wrong ... but that's
for a later time.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
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Subject: Re: [parisc-linux] linux-2.6.10-pa1 panic on C360 in SCSI driver
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On Sun, Dec 26, 2004 at 05:37:09PM +0000, Matthew Wilcox wrote:
> > Kernel Fault: Code=13 regs=10434640 (Addr=00000000)
> 
>  	 13  	 	 	 	 Conditional trap
> 
> >  IAOQ[0]: $$divU+0xc/0x210
> >  IAOQ[1]: $$divU+0x10/0x210
> 
> I guess we tried to divide by zero.
>

Interesting!

I've been seeing these while doing harmony work... That's pretty
confusing. Hmm.

Cheers,
	Kyle
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Subject: Re: [parisc-linux] linux-2.6.10-pa1 panic on C360 in SCSI driver
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Xref: news.gmane.org gmane.linux.ports.parisc:25037

Hello all,

Matthew Wilcox wrote:
> On Sun, Dec 26, 2004 at 05:04:40AM -0500, Mike Frysinger wrote:
> 
>>seems to be a new bug because building a 2.6.8.1-pa7 kernel with same .config 
>>works fine while a 2.6.10-pa1 panics ;(
> 
> 
> I suspect any 2.6.9 kernel will work fine and some of the earlier
> 2.6.10-rc too.  At some stage, I may invite you to do a binary search
> to figure out what patch caused this problem ... but see below first.
> 
> 
>>2.6.10-pa1-scsi-panic - dmesg output from scsi driver up through panic
>>2.6.8.1-pa11-dmesg - scsi dmesg output from a good kernel
> 
> 
> This is good -- very helpful.
> 
> 
>>sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
>>sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
> 
> 
> The 875 only supports wide ultra scsi (ie, FAST-20, 40MB/s).
> 
I just tested new 2.6.10 on my i386 box with same scsi interface (hp supply):
[...]
PCI: Found IRQ 11 for device 0000:00:09.0
sym0: <875> rev 0x14 at pci 0000:00:09.0 irq 11
sym0: Symbios NVRAM, ID 7, Fast-20, HVD, parity checking
sym0: open drain IRQ line driver, using on-chip SRAM
sym0: using LOAD/STORE-based firmware.
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18m
   Vendor: SEAGATE   Model: ST336605LSUN36G   Rev: 0238
   Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:6:0: tagged command queuing enabled, command queue depth 16.
  target0:0:6: Beginning Domain Validation
sym0:6: wide asynchronous.
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
  target0:0:6: Ending Domain Validation
PCI: Found IRQ 5 for device 0000:00:09.1
PCI: Sharing IRQ 5 with 0000:00:0a.0
sym1: <875> rev 0x14 at pci 0000:00:09.1 irq 5
sym1: Symbios NVRAM, ID 7, Fast-20, HVD, parity checking
sym1: open drain IRQ line driver, using on-chip SRAM
sym1: using LOAD/STORE-based firmware.
sym1: SCSI BUS has been reset.
scsi1 : sym-2.1.18m
PCI: Found IRQ 5 for device 0000:00:0a.0
PCI: Sharing IRQ 5 with 0000:00:09.1
sym2: <875> rev 0x26 at pci 0000:00:0a.0 irq 5
sym2: Symbios NVRAM, ID 7, Fast-20, SE, parity checking
sym2: open drain IRQ line driver, using on-chip SRAM
sym2: using LOAD/STORE-based firmware.
sym2: SCAN FOR LUNS disabled for targets 0 1 2 3 4 5 6 8 9 10 11 12 13 14 15.
sym2: SCSI BUS has been reset.
scsi2 : sym-2.1.18m
   Vendor: QUANTUM   Model: ATLAS_V_18_WLS    Rev: 0230
   Type:   Direct-Access                      ANSI SCSI revision: 03
sym2:0:0: tagged command queuing enabled, command queue depth 16.
  target2:0:0: Beginning Domain Validation
sym2:0: wide asynchronous.
sym2:0: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
  target2:0:0: Ending Domain Validation
st: Version 20041025, fixed bufsize 32768, s/g segs 256
SCSI device sda: 71132959 512-byte hdwr sectors (36420 MB)
SCSI device sda: drive cache: write through
SCSI device sda: 71132959 512-byte hdwr sectors (36420 MB)
SCSI device sda: drive cache: write through
  sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 >
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sdb: 35861388 512-byte hdwr sectors (18361 MB)
SCSI device sdb: drive cache: write back
SCSI device sdb: 35861388 512-byte hdwr sectors (18361 MB)
SCSI device sdb: drive cache: write back
  sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 sdb6 sdb7 sdb8 sdb9 sdb10 >
Attached scsi disk sdb at scsi2, channel 0, id 0, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 6, lun 0,  type 0
Attached scsi generic sg1 at scsi2, channel 0, id 0, lun 0,  type 0
[...]

and all seems to works fine.

Is there difference between upstream kernel and pa cvs from sym2 driver point of view?

hth,
	Joel
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On Mon, Dec 27, 2004 at 12:26:21AM +0000, Joel Soete wrote:
> Is there difference between upstream kernel and pa cvs from sym2 driver 
> point of view?

Yes, but the problem is with the Western Digital drive, so you
can't provoke the problem.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Sat, Dec 25, 2004 at 06:59:49PM +0100, domen@coderock.org wrote:
> 
> Remove nowhere referenced file. (egrep "filename\." didn't find anything)
> 
> Signed-off-by: Domen Puncer <domen@coderock.org>

Thanks - I will delete it from cvs.parisc-linux.org repository once
a "sanity check build" completes. I also couldn't find any references.
palo (parisc boot loader) doesn't use this file either.

thanks again,
grant
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Grant,

couldn't you do the same with ccio-rm-dma.c?
the only ref is in drivers/parisc/Makefile:
[...]
# Only use one of them: ccio-rm-dma is for PCX-W systems *only*
# obj-$(CONFIG_IOMMU_CCIO)      += ccio-rm-dma.o
obj-$(CONFIG_IOMMU_CCIO)        += ccio-dma.o
[...]

commented and replaced by ccio-dma.c for a long time ;-) (may also outdated?)

Joel


Grant Grundler wrote:
> On Sat, Dec 25, 2004 at 06:59:49PM +0100, domen@coderock.org wrote:
> 
>>Remove nowhere referenced file. (egrep "filename\." didn't find anything)
>>
>>Signed-off-by: Domen Puncer <domen@coderock.org>
> 
> 
> Thanks - I will delete it from cvs.parisc-linux.org repository once
> a "sanity check build" completes. I also couldn't find any references.
> palo (parisc boot loader) doesn't use this file either.
> 
> thanks again,
> grant
> _______________________________________________
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> parisc-linux@lists.parisc-linux.org
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On Mon, Dec 27, 2004 at 11:52:32AM +0000, Joel Soete wrote:
> Grant,
> 
> couldn't you do the same with ccio-rm-dma.c?

Yes, I could. But ccio is co-owned by James Bottomley (guilt
by association) and Ryan Bradetich. It's their decision if
they want to keep it around or not.

> the only ref is in drivers/parisc/Makefile:

No other references are necessary since the code hooks itself
in by updating hppa_dma_ops function table.

> [...]
> # Only use one of them: ccio-rm-dma is for PCX-W systems *only*
> # obj-$(CONFIG_IOMMU_CCIO)      += ccio-rm-dma.o
> obj-$(CONFIG_IOMMU_CCIO)        += ccio-dma.o
> [...]
> 
> commented and replaced by ccio-dma.c for a long time ;-) (may also 
> outdated?)

ccio-rm-dma.c is a replacement for ccio-dma.c on the one machine
that supports it: C360.

grant
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On Sunday 26 December 2004 07:49 pm, Matthew Wilcox wrote:
> Yes, but the problem is with the Western Digital drive, so you
> can't provoke the problem.

tried jejb's patch on irc:
--- 1.22/drivers/scsi/sym53c8xx_2/sym_hipd.c    2004-10-24 11:08:18 -05:00
+++ edited/sym_hipd.c   2004-12-27 16:33:50 -06:00
@@ -4176,7 +4176,7 @@
 
        if (ofs) {
                unsigned char minsync = dt ? np->minsync_dt : np->minsync;
-               if (per < np->minsync_dt) {
+               if (per < minsync) {
                        chg = 1;
                        per = minsync;
                }

it didnt panic, but it looks like the kernel went into an infinite loop ...

find attached new dmesg
-mike

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sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18m
elevator: using anticipatory as default io scheduler
  Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:6:0: tagged command queuing enabled, command queue depth 16.
 target0:0:6: Beginning Domain Validation
sym0:6:wide msgout: 1-2-3-1.
sym0:6:wide msgin: 1-2-3-1.
sym0:6:wdtr: wide=1 chg=0.
sym0:6:sync msgout: 1-3-1-c-0.
sym0:6:sync msgin: 1-3-1-c-0.
sym0:6:sdtr: ofs=0 per=12 div=0 fak=0 chg=0.
sym0:6: wide asynchronous.
sym0:6:sync msgout: 1-3-1-c-10.
sym0:6:sync msgin: 1-3-1-c-f.
sym0:6:sdtr: ofs=15 per=12 div=0 fak=0 chg=0.
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
 target0:0:6: Domain Validation skipping write tests
 target0:0:6: Ending Domain Validation
sym0:9:ppr msgin: 1-6-4-c-0-3f-1-2.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
sym0:9:ppr msgout: 1-6-4-c-0-10-1-0.
  Vendor: WDIGTL    Model: WDE9150 ULTRA3    Rev: 1.30
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:9:0: tagged command queuing enabled, command queue depth 16.
 target0:0:9: Beginning Domain Validation
sym0:9:ppr msgout: 1-6-4-c-0-0-0-0.
sym0:9:ppr msgin: 1-6-4-a-0-0-0-0.
sym0:9: asynchronous.
sym0:9:ppr msgout: 1-6-4-c-0-0-1-0.
sym0:9:ppr msgin: 1-6-4-a-0-0-1-0.
sym0:9: wide asynchronous.
sym0:9:ppr msgout: 1-6-4-c-0-10-1-0.
sym0:9:ppr msgin: 1-6-4-a-0-10-1-0.
sym0:9: asynchronous.
sym0:9:0:M_REJECT to send for : 1-6-4-a-0-10-1-0.
sym0:9:0: ABORT operation started.
sym0:9:0: ABORT operation timed-out.
sym0:9:0: DEVICE RESET operation started.
sym0:9:0: DEVICE RESET operation timed-out.
sym0:9:0: BUS RESET operation started.
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sym0:9:0: BUS RESET operation complete.
sym0:9:ppr msgout: 1-6-4-c-0-10-1-0.
sym0:9:ppr msgin: 1-6-4-a-0-10-1-0.
sym0:9:0:M_REJECT to send for : 1-6-4-a-0-10-1-0.
sym0:9:0: ABORT operation started.
sym0:9:0: ABORT operation timed-out.
sym0:9:0: HOST RESET operation started.
sym0: SCSI BUS has been reset.

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On Mon, 2004-12-27 at 20:45 -0500, Mike Frysinger wrote:
> it didnt panic, but it looks like the kernel went into an infinite loop ...

Well, I think that's the fault of your drive:

> sym0:9:ppr msgout: 1-6-4-c-0-10-1-0.

This is where the 875 offers an offset of 16 at FAST-20 which is the
best it can do.

> sym0:9:ppr msgin: 1-6-4-a-0-10-1-0.

This is where your WD says I accept your offer at offset 16 and FAST-40
(which is beyond the 875's capabilities).

This is illegal under the SCSI spec (you can only accept at a period of
greater than the offer, not less than).  The patch I gave you spots the
problem and rejects the bogus offer.  Unfortunately, apparently now the
drive throws a wobbly and refuses to talk any more.

The question is how we coax it to negotiate within the rules...It's
possible it would work correctly if the negotiation used WDTR and SDTR
instead of PPR, so could you try the attached hack.

James

===== sym_hipd.c 1.22 vs edited =====
--- 1.22/drivers/scsi/sym53c8xx_2/sym_hipd.c	2004-10-24 11:08:18 -05:00
+++ edited/sym_hipd.c	2004-12-27 21:28:35 -06:00
@@ -1538,7 +1538,7 @@
 	/*
 	 *  negotiate using PPR ?
 	 */
-	if (scsi_device_dt(sdev)) {
+	if (0 && scsi_device_dt(sdev)) {
 		nego = NS_PPR;
 	} else {
 		/*




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Subject: Re: [parisc-linux] linux-2.6.10-pa1 panic on C360 in SCSI driver
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On Mon, Dec 27, 2004 at 08:45:34PM -0500, Mike Frysinger wrote:
> it didnt panic, but it looks like the kernel went into an infinite loop ...

Yeah, now it looks like a problem a bunch of other people have been having ;-(

> sym0:9:ppr msgin: 1-6-4-c-0-3f-1-2.
> sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
> sym0:9:ppr msgout: 1-6-4-c-0-10-1-0.
>   Vendor: WDIGTL    Model: WDE9150 ULTRA3    Rev: 1.30
>   Type:   Direct-Access                      ANSI SCSI revision: 03
> sym0:9:0: tagged command queuing enabled, command queue depth 16.
>  target0:0:9: Beginning Domain Validation
> sym0:9:ppr msgout: 1-6-4-c-0-0-0-0.
> sym0:9:ppr msgin: 1-6-4-a-0-0-0-0.

The SPI spec prohobits the device from going faster than we say.  The 'c'
in the msgout is us saying "we can only do FAST-20" (as the 875 is only
capable of FAST-20).  The 'a' in the msgin is the device saying "OK,
let's do FAST-40".

Can you try the following patch?  We're not actually disabling ppr atm,
depite what the comment says.

Index: drivers/scsi/sym53c8xx_2/sym_hipd.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/sym53c8xx_2/sym_hipd.c,v
retrieving revision 1.43
diff -u -p -r1.43 sym_hipd.c
--- drivers/scsi/sym53c8xx_2/sym_hipd.c 2 Dec 2004 19:51:11 -0000       1.43
+++ drivers/scsi/sym53c8xx_2/sym_hipd.c 28 Dec 2004 03:27:10 -0000
@@ -1444,7 +1444,11 @@ static void sym_check_goals(struct scsi_
                st->offset = 0;
                return;
        }
-               
+
+       /* Some targets fail to properly negotiate using PPR in SE mode */
+       if (!((np->scsi_mode == SMODE_LVD) && (np->features & FE_ULTRA3)))
+               sdev->ppr = 0;
+
        if (scsi_device_dt(sdev)) {
                if (scsi_device_dt_only(sdev))
                        st->options |= PPR_OPT_DT;
@@ -1454,10 +1458,6 @@ static void sym_check_goals(struct scsi_
        } else {
                st->options &= ~PPR_OPT_DT;
        }

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On Monday 27 December 2004 10:30 pm, James Bottomley wrote:
> Well, I think that's the fault of your drive:

i make no claims that it's perfect :)

> The question is how we coax it to negotiate within the rules...It's
> possible it would work correctly if the negotiation used WDTR and SDTR
> instead of PPR, so could you try the attached hack.
> - if (scsi_device_dt(sdev)) {
> + if (0 && scsi_device_dt(sdev)) {

revereted the minsync patch (not sure if you guys wanted me to, but i did 
anyways) and applied this one ... worked much nicer from my perspective ;)

system booted and i can read the drive just fine ... find attached updated 
dmesg
-mike

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sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18m
elevator: using anticipatory as default io scheduler
  Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:6:0: tagged command queuing enabled, command queue depth 16.
 target0:0:6: Beginning Domain Validation
sym0:6:wide msgout: 1-2-3-1.
sym0:6:wide msgin: 1-2-3-1.
sym0:6:wdtr: wide=1 chg=0.
sym0:6:sync msgout: 1-3-1-c-0.
sym0:6:sync msgin: 1-3-1-c-0.
sym0:6:sdtr: ofs=0 per=12 div=0 fak=0 chg=0.
sym0:6: wide asynchronous.
sym0:6:sync msgout: 1-3-1-c-10.
sym0:6:sync msgin: 1-3-1-c-f.
sym0:6:sdtr: ofs=15 per=12 div=0 fak=0 chg=0.
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
 target0:0:6: Domain Validation skipping write tests
 target0:0:6: Ending Domain Validation
sym0:9:ppr msgin: 1-6-4-c-0-3f-1-2.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
sym0:9:ppr msgout: 1-6-4-c-0-10-1-0.
  Vendor: WDIGTL    Model: WDE9150 ULTRA3    Rev: 1.30
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:9:0: tagged command queuing enabled, command queue depth 16.
 target0:0:9: Beginning Domain Validation
sym0:9:wide msgout: 1-2-3-0.
sym0:9:wide msgin: 1-2-3-0.
sym0:9:wdtr: wide=0 chg=0.
sym0:9:sync msgin: 1-3-1-c-1f.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=1.
sym0:9: FAST-20 SCSI 20.0 MB/s ST (50.0 ns, offset 16)
sym0:9:sync msgout: 1-3-1-c-10.
sym0:9:wide msgout: 1-2-3-1.
sym0:9:wide msgin: 1-2-3-1.
sym0:9:wdtr: wide=1 chg=0.
sym0:9:sync msgout: 1-3-1-c-10.
sym0:9:sync msgin: 1-3-1-c-10.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=0.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
sym0:9:wide msgout: 1-2-3-1.
sym0:9:wide msgin: 1-2-3-1.
sym0:9:wdtr: wide=1 chg=0.
sym0:9:sync msgout: 1-3-1-c-10.
sym0:9:sync msgin: 1-3-1-c-10.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=0.
sym0:9:wide msgout: 1-2-3-1.
sym0:9:wide msgin: 1-2-3-1.
sym0:9:wdtr: wide=1 chg=0.
sym0:9:sync msgout: 1-3-1-c-10.
sym0:9:sync msgin: 1-3-1-c-10.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=0.
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-d-10.
sym0:9:sync msgin: 1-3-1-19-10.
sym0:9:sdtr: ofs=16 per=25 div=2 fak=0 chg=0.
sym0:9: FAST-10 WIDE SCSI 20.0 MB/s ST (100.0 ns, offset 16)
sym0:9:wide msgout: 1-2-3-1.
sym0:9:wide msgin: 1-2-3-1.
sym0:9:wdtr: wide=1 chg=0.
sym0:9:sync msgout: 1-3-1-19-10.
sym0:9:sync msgin: 1-3-1-19-10.
sym0:9:sdtr: ofs=16 per=25 div=2 fak=0 chg=0.
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-25-10.
sym0:9:sync msgin: 1-3-1-25-10.
sym0:9:sdtr: ofs=16 per=37 div=2 fak=2 chg=0.
sym0:9: FAST-10 WIDE SCSI 13.5 MB/s ST (148.0 ns, offset 16)
sym0:9:wide msgout: 1-2-3-1.
sym0:9:wide msgin: 1-2-3-1.
sym0:9:wdtr: wide=1 chg=0.
sym0:9:sync msgout: 1-3-1-25-10.
sym0:9:sync msgin: 1-3-1-25-10.
sym0:9:sdtr: ofs=16 per=37 div=2 fak=2 chg=0.
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-37-10.
sym0:9:sync msgin: 1-3-1-38-10.
sym0:9:sdtr: ofs=16 per=56 div=4 fak=1 chg=0.
sym0:9: FAST-5 WIDE SCSI 8.9 MB/s ST (224.0 ns, offset 16)
sym0:9:wide msgout: 1-2-3-1.
sym0:9:wide msgin: 1-2-3-1.
sym0:9:wdtr: wide=1 chg=0.
sym0:9:sync msgout: 1-3-1-38-10.
sym0:9:sync msgin: 1-3-1-38-10.
sym0:9:sdtr: ofs=16 per=56 div=4 fak=1 chg=0.
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-54-10.
sym0:9:sync msgin: 1-3-1-57-10.
sym0:9: wide asynchronous.
sym0:9:0:M_REJECT to send for : 1-3-1-57-10.
sym0:9:sync msgout: 1-3-1-c-0.
sym0:9:sync msgin: 1-3-1-c-0.
sym0:9:sdtr: ofs=0 per=12 div=0 fak=0 chg=0.
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-7e-0.
sym0:9:sync msgin: 1-3-1-7e-0.
sym0:9:sdtr: ofs=0 per=126 div=0 fak=0 chg=0.
sym0:9:wide msgout: 1-2-3-1.
sym0:9:wide msgin: 1-2-3-1.
sym0:9:wdtr: wide=1 chg=0.
sym0:9:sync msgin: 1-3-1-c-1f.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=1.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
sym0:9:sync msgout: 1-3-1-c-10.
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-89-10.
sym0:9:sync msgin: 1-3-1-89-0.
sym0:9:sdtr: ofs=0 per=137 div=0 fak=0 chg=0.
sym0:9: wide asynchronous.
sym0:9:wide msgout: 1-2-3-1.
sym0:9:wide msgin: 1-2-3-1.
sym0:9:wdtr: wide=1 chg=0.
sym0:9:sync msgin: 1-3-1-c-1f.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=1.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
sym0:9:sync msgout: 1-3-1-c-10.
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation Failure, dropping back to Asynchronous
 target0:0:9: Ending Domain Validation
sym0:9:sync msgout: 1-3-1-c-0.
sym0:9:sync msgin: 1-3-1-c-0.
sym0:9:sdtr: ofs=0 per=12 div=0 fak=0 chg=0.
sym0:9: wide asynchronous.
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2
scsi1 : LASI SCSI 53c700
  Vendor: TOSHIBA   Model: CD-ROM XM-5301TA  Rev: 1895
  Type:   CD-ROM                             ANSI SCSI revision: 02
 target1:0:2: Beginning Domain Validation
scsi1: (2:0) Asynchronous
scsi1: (2:0) Synchronous at offset 8, period 236ns
 target1:0:2: Domain Validation skipping write tests
 target1:0:2: Ending Domain Validation
sym0:6:wide msgout: 1-2-3-1.
sym0:6:wide msgin: 1-2-3-1.
sym0:6:wdtr: wide=1 chg=0.
sym0:6:sync msgout: 1-3-1-c-f.
sym0:6:sync msgin: 1-3-1-c-f.
sym0:6:sdtr: ofs=15 per=12 div=0 fak=0 chg=0.
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sdb: 17873040 512-byte hdwr sectors (9151 MB)
SCSI device sdb: drive cache: write back
SCSI device sdb: 17873040 512-byte hdwr sectors (9151 MB)
SCSI device sdb: drive cache: write back
 sdb: unknown partition table
Attached scsi disk sdb at scsi0, channel 0, id 9, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
Attached scsi generic sg0 at scsi0, channel 0, id 6, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 9, lun 0,  type 0
Attached scsi generic sg2 at scsi1, channel 0, id 2, lun 0,  type 5

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Subject: Re: [parisc-linux] linux-2.6.10-pa1 panic on C360 in SCSI driver
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On Monday 27 December 2004 10:35 pm, Matthew Wilcox wrote:
> Can you try the following patch?  We're not actually disabling ppr atm,
> depite what the comment says.

kernel panic :(

find attach dmesg
-mike

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sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18m
elevator: using anticipatory as default io scheduler
  Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:6:0: tagged command queuing enabled, command queue depth 16.
 target0:0:6: Beginning Domain Validation
sym0:6:wide msgout: 1-2-3-1.
sym0:6:wide msgin: 1-2-3-1.
sym0:6:wdtr: wide=1 chg=0.
sym0:6:sync msgout: 1-3-1-c-0.
sym0:6:sync msgin: 1-3-1-c-0.
sym0:6:sdtr: ofs=0 per=12 div=0 fak=0 chg=0.
sym0:6: wide asynchronous.
sym0:6:sync msgout: 1-3-1-c-10.
sym0:6:sync msgin: 1-3-1-c-f.
sym0:6:sdtr: ofs=15 per=12 div=0 fak=0 chg=0.
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
 target0:0:6: Domain Validation skipping write tests
 target0:0:6: Ending Domain Validation
sym0:9:ppr msgin: 1-6-4-c-0-3f-1-2.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
sym0:9:ppr msgout: 1-6-4-c-0-10-1-0.
  Vendor: WDIGTL    Model: WDE9150 ULTRA3    Rev: 1.30
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:9:0: tagged command queuing enabled, command queue depth 16.
 target0:0:9: Beginning Domain Validation
sym0:9:ppr msgout: 1-6-4-c-0-0-0-0.
sym0:9:ppr msgin: 1-6-4-a-0-0-0-0.
sym0:9: asynchronous.
sym0:9:ppr msgout: 1-6-4-c-0-0-1-0.
sym0:9:ppr msgin: 1-6-4-a-0-0-1-0.
sym0:9: wide asynchronous.
sym0:9:ppr msgout: 1-6-4-c-0-10-1-0.
sym0:9:ppr msgin: 1-6-4-a-0-10-1-0.
Backtrace:
 [<1029cf04>] sym53c8xx_intr+0x30/0x88
 [<1010708c>] do_irq+0x84/0x158
 [<1024234c>] dino_isr+0xa4/0x110
 [<1010708c>] do_irq+0x84/0x158
 [<10107214>] do_cpu_irq_mask+0xb4/0x124
 [<1010c068>] intr_return+0x0/0x14
 [<10112674>] cpu_idle+0x20/0x30
 [<101776a4>] may_open+0x58/0x20c
 [<10165b04>] dentry_open+0xd8/0x258
 [<1017a854>] dupfd+0x1e4/0x234
 [<10434610>] start_kernel+0x4/0x1e0
 [<10434610>] start_kernel+0x4/0x1e0
 [<10434610>] start_kernel+0x4/0x1e0
 [<10434610>] start_kernel+0x4/0x1e0
 [<10434610>] start_kernel+0x4/0x1e0
 [<10434610>] start_kernel+0x4/0x1e0


Kernel Fault: Code=13 regs=10428600 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001000000000000001110 Not tainted
r00-03  00000000 ffffffff 1042858a 00000000
r04-07  00000010 00000000 10fc4000 10fc4c00
r08-11  103f6810 00000000 00000009 10fc4310
r12-15  0000000a 00000001 000000fd f0100000
r16-19  10428140 f0000154 f000014c 103f7168
r20-23  00000000 103f7168 ffffffff 1042858b
r24-27  0000000a 00000000 01312cff 103ca010
r28-31  000000fa 00000005 10428600 1029f8d8
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 1023122c 10231230
 IIR: b3202000    ISR: 10240001  IOR: 0a0285f0
 CPU:        0   CR30: 10428000 CR31: 1042c000
 ORIG_R28: 00000000
 IAOQ[0]: $$divU+0xc/0x210
 IAOQ[1]: $$divU+0x10/0x210
 RP(r2): 0x1042858a
Kernel panic - not syncing: Kernel Fault
 <0>Rebooting in 3 seconds..

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From: Matthew Wilcox <matthew@wil.cx>
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Subject: Re: [parisc-linux] linux-2.6.10-pa1 panic on C360 in SCSI driver
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On Mon, Dec 27, 2004 at 11:01:03PM -0500, Mike Frysinger wrote:
> On Monday 27 December 2004 10:35 pm, Matthew Wilcox wrote:
> > Can you try the following patch?  We're not actually disabling ppr atm,
> > depite what the comment says.
> 
> kernel panic :(

Okey dokey.  Here's a new one.  Now we only use PPR if we have a good
reason (eg we want to negotiate FAST-80 or DT clocking).  I'm sick of
devices that implement SDTR perfectly and have buggy PPR ;-(

Index: drivers/scsi/sym53c8xx_2/sym_hipd.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/scsi/sym53c8xx_2/sym_hipd.c,v
retrieving revision 1.43
diff -u -p -r1.43 sym_hipd.c
--- drivers/scsi/sym53c8xx_2/sym_hipd.c	2 Dec 2004 19:51:11 -0000	1.43
+++ drivers/scsi/sym53c8xx_2/sym_hipd.c	29 Dec 2004 03:31:30 -0000
@@ -1428,13 +1428,12 @@ static void sym_update_dmap_regs(struct 
 }
 #endif
 
+/* Enforce all the fiddly SPI rules and the chip limitations */
 static void sym_check_goals(struct scsi_device *sdev)
 {
 	struct sym_hcb *np = ((struct host_data *)sdev->host->hostdata)->ncb;
 	struct sym_trans *st = &np->target[sdev->id].tinfo.goal;
 
-	/* here we enforce all the fiddly SPI rules */
-
 	if (!scsi_device_wide(sdev))
 		st->width = 0;
 
@@ -1444,7 +1443,7 @@ static void sym_check_goals(struct scsi_
 		st->offset = 0;
 		return;
 	}
-		
+
 	if (scsi_device_dt(sdev)) {
 		if (scsi_device_dt_only(sdev))
 			st->options |= PPR_OPT_DT;
@@ -1455,8 +1454,8 @@ static void sym_check_goals(struct scsi_
 		st->options &= ~PPR_OPT_DT;
 	}
 
-	/* Some targets fail to properly negotiate using PPR in SE mode */
-	if (!((np->scsi_mode == SMODE_LVD) && (np->features & FE_ULTRA3)))
+	/* Some targets fail to properly negotiate DT in SE mode */
+	if ((np->scsi_mode != SMODE_LVD) || !(np->features & FE_U3EN))
 		st->options &= ~PPR_OPT_DT;
 
 	if (st->options & PPR_OPT_DT) {
@@ -1486,38 +1485,31 @@ static void sym_check_goals(struct scsi_
  *  negotiation and the nego_status field of the CCB.
  *  Returns the size of the message in bytes.
  */
-static int sym_prepare_nego(struct sym_hcb *np, ccb_p cp, int nego, u_char *msgptr)
+static int sym_prepare_nego(struct sym_hcb *np, ccb_p cp, u_char *msgptr)
 {
 	tcb_p tp = &np->target[cp->target];
-	int msglen = 0;
 	struct scsi_device *sdev = tp->sdev;
+	struct sym_trans *goal = &tp->tinfo.goal;
+	struct sym_trans *curr = &tp->tinfo.curr;
+	int msglen = 0;
+	int nego;
 
 	if (likely(sdev))
 		sym_check_goals(sdev);
 
 	/*
-	 *  Early C1010 chips need a work-around for DT 
-	 *  data transfer to work.
-	 */
-	if (!(np->features & FE_U3EN))
-		tp->tinfo.goal.options = 0;
-	/*
-	 *  negotiate using PPR ?
+	 * Many devices implement PPR in a buggy way, so only use it if we
+	 * really want to.
 	 */
-	if (scsi_device_dt(sdev)) {
+	if ((goal->options & PPR_OPT_MASK) || (goal->period < 0xa)) {
 		nego = NS_PPR;
+	} else if (curr->width != goal->width) {
+		nego = NS_WIDE;
+	} else if (curr->period != goal->period ||
+		   curr->offset != goal->offset) {
+		nego = NS_SYNC;
 	} else {
-		/*
-		 *  negotiate wide transfers ?
-		 */
-		if (tp->tinfo.curr.width != tp->tinfo.goal.width)
-			nego = NS_WIDE;
-		/*
-		 *  negotiate synchronous transfers?
-		 */
-		else if (tp->tinfo.curr.period != tp->tinfo.goal.period ||
-			 tp->tinfo.curr.offset != tp->tinfo.goal.offset)
-			nego = NS_SYNC;
+		nego = 0;
 	}
 
 	switch (nego) {
@@ -1525,24 +1517,24 @@ static int sym_prepare_nego(struct sym_h
 		msgptr[msglen++] = M_EXTENDED;
 		msgptr[msglen++] = 3;
 		msgptr[msglen++] = M_X_SYNC_REQ;
-		msgptr[msglen++] = tp->tinfo.goal.period;
-		msgptr[msglen++] = tp->tinfo.goal.offset;
+		msgptr[msglen++] = goal->period;
+		msgptr[msglen++] = goal->offset;
 		break;
 	case NS_WIDE:
 		msgptr[msglen++] = M_EXTENDED;
 		msgptr[msglen++] = 2;
 		msgptr[msglen++] = M_X_WIDE_REQ;
-		msgptr[msglen++] = tp->tinfo.goal.width;
+		msgptr[msglen++] = goal->width;
 		break;
 	case NS_PPR:
 		msgptr[msglen++] = M_EXTENDED;
 		msgptr[msglen++] = 6;
 		msgptr[msglen++] = M_X_PPR_REQ;
-		msgptr[msglen++] = tp->tinfo.goal.period;
+		msgptr[msglen++] = goal->period;
 		msgptr[msglen++] = 0;
-		msgptr[msglen++] = tp->tinfo.goal.offset;
-		msgptr[msglen++] = tp->tinfo.goal.width;
-		msgptr[msglen++] = tp->tinfo.goal.options & PPR_OPT_MASK;
+		msgptr[msglen++] = goal->offset;
+		msgptr[msglen++] = goal->width;
+		msgptr[msglen++] = goal->options & PPR_OPT_MASK;
 		break;
 	};
 
@@ -3062,7 +3054,6 @@ static void sym_sir_bad_scsi_status(stru
 	u_char		s_status = cp->ssss_status;
 	u_char		h_flags  = cp->host_flags;
 	int		msglen;
-	int		nego;
 	int		i;
 
 	/*
@@ -3137,16 +3128,7 @@ static void sym_sir_bad_scsi_status(stru
 		 *  cp->nego_status is filled by sym_prepare_nego().
 		 */
 		cp->nego_status = 0;
-		nego = 0;
-		if	(tp->tinfo.curr.options & PPR_OPT_MASK)
-			nego = NS_PPR;
-		else if	(tp->tinfo.curr.width != BUS_8_BIT)
-			nego = NS_WIDE;
-		else if (tp->tinfo.curr.offset != 0)
-			nego = NS_SYNC;
-		if (nego)
-			msglen +=
-			sym_prepare_nego (np,cp, nego, &cp->scsi_smsg2[msglen]);
+		msglen += sym_prepare_nego(np, cp, &cp->scsi_smsg2[msglen]);
 		/*
 		 *  Message table indirect structure.
 		 */
@@ -4135,7 +4117,7 @@ sym_ppr_nego_check(struct sym_hcb *np, i
 
 	if (ofs) {
 		unsigned char minsync = dt ? np->minsync_dt : np->minsync;
-		if (per < np->minsync_dt) {
+		if (per < minsync) {
 			chg = 1;
 			per = minsync;
 		}
@@ -5300,7 +5282,7 @@ int sym_queue_scsiio(struct sym_hcb *np,
 	    tp->tinfo.curr.offset  != tp->tinfo.goal.offset ||
 	    tp->tinfo.curr.options != tp->tinfo.goal.options) {
 		if (!tp->nego_cp && lp)
-			msglen += sym_prepare_nego(np, cp, 0, msgptr + msglen);
+			msglen += sym_prepare_nego(np, cp, msgptr + msglen);
 	}
 
 	/*

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] linux-2.6.10-pa1 panic on C360 in SCSI driver
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On Tuesday 28 December 2004 10:43 pm, Matthew Wilcox wrote:
> Okey dokey.  Here's a new one.  Now we only use PPR if we have a good
> reason (eg we want to negotiate FAST-80 or DT clocking).  I'm sick of
> devices that implement SDTR perfectly and have buggy PPR ;-(

system booted nicely :)

new dmesg attached !
-mike

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Content-Type: text/plain; charset="iso-8859-1";
	name="2.6.10-pa1-scsi-debug-patch4"
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	filename="2.6.10-pa1-scsi-debug-patch4"

eth0: Digital DS21143 Tulip rev 65 at 80000080, 00:10:83:35:8C:80, IRQ 96.
sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18m
elevator: using anticipatory as default io scheduler
  Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:6:0: tagged command queuing enabled, command queue depth 16.
 target0:0:6: Beginning Domain Validation
sym0:6:wide msgout: 1-2-3-1.
sym0:6:wide msgin: 1-2-3-1.
sym0:6:wdtr: wide=1 chg=0.
sym0:6:sync msgout: 1-3-1-c-0.
sym0:6:sync msgin: 1-3-1-c-0.
sym0:6:sdtr: ofs=0 per=12 div=0 fak=0 chg=0.
sym0:6: wide asynchronous.
sym0:6:sync msgout: 1-3-1-c-10.
sym0:6:sync msgin: 1-3-1-c-f.
sym0:6:sdtr: ofs=15 per=12 div=0 fak=0 chg=0.
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
 target0:0:6: Domain Validation skipping write tests
 target0:0:6: Ending Domain Validation
sym0:9:ppr msgin: 1-6-4-c-0-3f-1-2.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
sym0:9:ppr msgout: 1-6-4-c-0-10-1-0.
  Vendor: WDIGTL    Model: WDE9150 ULTRA3    Rev: 1.30
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:9:0: tagged command queuing enabled, command queue depth 16.
 target0:0:9: Beginning Domain Validation
sym0:9:wide msgout: 1-2-3-0.
sym0:9:wide msgin: 1-2-3-0.
sym0:9:wdtr: wide=0 chg=0.
sym0:9:sync msgin: 1-3-1-c-1f.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=1.
sym0:9: FAST-20 SCSI 20.0 MB/s ST (50.0 ns, offset 16)
sym0:9:sync msgout: 1-3-1-c-10.
sym0:9:wide msgout: 1-2-3-1.
sym0:9:wide msgin: 1-2-3-1.
sym0:9:wdtr: wide=1 chg=0.
sym0:9:sync msgout: 1-3-1-c-10.
sym0:9:sync msgin: 1-3-1-c-10.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=0.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-d-10.
sym0:9:sync msgin: 1-3-1-19-10.
sym0:9:sdtr: ofs=16 per=25 div=2 fak=0 chg=0.
sym0:9: FAST-10 WIDE SCSI 20.0 MB/s ST (100.0 ns, offset 16)
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-25-10.
sym0:9:sync msgin: 1-3-1-25-10.
sym0:9:sdtr: ofs=16 per=37 div=2 fak=2 chg=0.
sym0:9: FAST-10 WIDE SCSI 13.5 MB/s ST (148.0 ns, offset 16)
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-37-10.
sym0:9:sync msgin: 1-3-1-38-10.
sym0:9:sdtr: ofs=16 per=56 div=4 fak=1 chg=0.
sym0:9: FAST-5 WIDE SCSI 8.9 MB/s ST (224.0 ns, offset 16)
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-54-10.
sym0:9:sync msgin: 1-3-1-57-10.
sym0:9: wide asynchronous.
sym0:9:0:M_REJECT to send for : 1-3-1-57-10.
sym0:9:sync msgout: 1-3-1-c-0.
sym0:9:sync msgin: 1-3-1-c-0.
sym0:9:sdtr: ofs=0 per=12 div=0 fak=0 chg=0.
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-7e-0.
sym0:9:sync msgin: 1-3-1-7e-0.
sym0:9:sdtr: ofs=0 per=126 div=0 fak=0 chg=0.
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-89-0.
sym0:9:sync msgin: 1-3-1-89-0.
sym0:9:sdtr: ofs=0 per=137 div=0 fak=0 chg=0.
 target0:0:9: Write Buffer failure 8000002
 target0:0:9: Domain Validation Failure, dropping back to Asynchronous
 target0:0:9: Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
  Vendor: TOSHIBA   Model: CD-ROM XM-5301TA  Rev: 1895
  Type:   CD-ROM                             ANSI SCSI revision: 02
 target1:0:2: Beginning Domain Validation
scsi1: (2:0) Asynchronous
scsi1: (2:0) Synchronous at offset 8, period 236ns
 target1:0:2: Domain Validation skipping write tests
 target1:0:2: Ending Domain Validation
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sdb: 17873040 512-byte hdwr sectors (9151 MB)
SCSI device sdb: drive cache: write back
SCSI device sdb: 17873040 512-byte hdwr sectors (9151 MB)
SCSI device sdb: drive cache: write back
 sdb: unknown partition table
Attached scsi disk sdb at scsi0, channel 0, id 9, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 6, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 9, lun 0,  type 0
Attached scsi generic sg2 at scsi1, channel 0, id 2, lun 0,  type 5

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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Re: 2.6.10-pa1 compile fails
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Xref: news.gmane.org gmane.linux.ports.parisc:25049

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Matthew Wilcox wrote:
> On Wed, Dec 29, 2004 at 03:38:05PM +0000, Joel Soete wrote:
> 
>>mmm don't have such error with gcc-3.3.5.
> 
> 
> We had this discussion two months ago.
> 
> http://lists.debian.org/debian-hppa/2004/10/msg00021.html
> 
Taken this into account, I move parport_gsc.h into drivers/parport and remove stuff from parport_gsc.c
(btw I add a gnu license to parport_gsc.h based on the one of parport_gsc.c ;-)

--- include/asm-parisc/parport_gsc.h.Orig	2004-12-29 16:17:31.110118022 +0100
+++ include/asm-parisc/parport_gsc.h	1970-01-01 01:00:00.000000000 +0100
@@ -1,193 +0,0 @@
-#ifndef __LINUX_PARPORT_GSC_H
-#define __LINUX_PARPORT_GSC_H
-
-#include <asm/io.h>
-#include <linux/delay.h>
-
-#undef	DEBUG_PARPORT	/* undefine for production */
-#define DELAY_TIME 	0
-
-#if DELAY_TIME == 0
-#define parport_readb	gsc_readb
-#define parport_writeb	gsc_writeb
-#else
-static __inline__ unsigned char parport_readb( unsigned long port )
-{
-    udelay(DELAY_TIME);
-    return gsc_readb(port);
-}
-
-static __inline__ void parport_writeb( unsigned char value, unsigned long port )
-{
-    gsc_writeb(value,port);
-    udelay(DELAY_TIME);
-}
-#endif
-
-/* --- register definitions ------------------------------- */
-
-#define EPPDATA(p)  ((p)->base    + 0x4)
-#define EPPADDR(p)  ((p)->base    + 0x3)
-#define CONTROL(p)  ((p)->base    + 0x2)
-#define STATUS(p)   ((p)->base    + 0x1)
-#define DATA(p)     ((p)->base    + 0x0)
-
-struct parport_gsc_private {
-	/* Contents of CTR. */
-	unsigned char ctr;
-
-	/* Bitmask of writable CTR bits. */
-	unsigned char ctr_writable;
-
-	/* Number of bytes per portword. */
-	int pword;
-
-	/* Not used yet. */
-	int readIntrThreshold;
-	int writeIntrThreshold;
-
-	/* buffer suitable for DMA, if DMA enabled */
-	char *dma_buf;
-	dma_addr_t dma_handle;
-	struct pci_dev *dev;
-};
-
-extern __inline__ void parport_gsc_write_data(struct parport *p, unsigned char d)
-{
-#ifdef DEBUG_PARPORT
-	printk (KERN_DEBUG "parport_gsc_write_data(%p,0x%02x)\n", p, d);
-#endif
-	parport_writeb(d, DATA(p));
-}
-
-extern __inline__ unsigned char parport_gsc_read_data(struct parport *p)
-{
-	unsigned char val = parport_readb (DATA (p));
-#ifdef DEBUG_PARPORT
-	printk (KERN_DEBUG "parport_gsc_read_data(%p) = 0x%02x\n",
-		p, val);
-#endif
-	return val;
-}
-
-/* __parport_gsc_frob_control differs from parport_gsc_frob_control in that
- * it doesn't do any extra masking. */
-static __inline__ unsigned char __parport_gsc_frob_control (struct parport *p,
-							   unsigned char mask,
-							   unsigned char val)
-{
-	struct parport_gsc_private *priv = p->physport->private_data;
-	unsigned char ctr = priv->ctr;
-#ifdef DEBUG_PARPORT
-	printk (KERN_DEBUG
-		"__parport_gsc_frob_control(%02x,%02x): %02x -> %02x\n",
-		mask, val, ctr, ((ctr & ~mask) ^ val) & priv->ctr_writable);
-#endif
-	ctr = (ctr & ~mask) ^ val;
-	ctr &= priv->ctr_writable; /* only write writable bits. */
-	parport_writeb (ctr, CONTROL (p));
-	priv->ctr = ctr;	/* Update soft copy */
-	return ctr;
-}
-
-extern __inline__ void parport_gsc_data_reverse (struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x20, 0x20);
-}
-
-extern __inline__ void parport_gsc_data_forward (struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x20, 0x00);
-}
-
-extern __inline__ void parport_gsc_write_control (struct parport *p,
-						 unsigned char d)
-{
-	const unsigned char wm = (PARPORT_CONTROL_STROBE |
-				  PARPORT_CONTROL_AUTOFD |
-				  PARPORT_CONTROL_INIT |
-				  PARPORT_CONTROL_SELECT);
-
-	/* Take this out when drivers have adapted to newer interface. */
-	if (d & 0x20) {
-		printk (KERN_DEBUG "%s (%s): use data_reverse for this!\n",
-			p->name, p->cad->name);
-		parport_gsc_data_reverse (p);
-	}
-
-	__parport_gsc_frob_control (p, wm, d & wm);
-}
-
-extern __inline__ unsigned char parport_gsc_read_control(struct parport *p)
-{
-	const unsigned char rm = (PARPORT_CONTROL_STROBE |
-				  PARPORT_CONTROL_AUTOFD |
-				  PARPORT_CONTROL_INIT |
-				  PARPORT_CONTROL_SELECT);
-	const struct parport_gsc_private *priv = p->physport->private_data;
-	return priv->ctr & rm; /* Use soft copy */
-}
-
-extern __inline__ unsigned char parport_gsc_frob_control (struct parport *p,
-							 unsigned char mask,
-							 unsigned char val)
-{
-	const unsigned char wm = (PARPORT_CONTROL_STROBE |
-				  PARPORT_CONTROL_AUTOFD |
-				  PARPORT_CONTROL_INIT |
-				  PARPORT_CONTROL_SELECT);
-
-	/* Take this out when drivers have adapted to newer interface. */
-	if (mask & 0x20) {
-		printk (KERN_DEBUG "%s (%s): use data_%s for this!\n",
-			p->name, p->cad->name,
-			(val & 0x20) ? "reverse" : "forward");
-		if (val & 0x20)
-			parport_gsc_data_reverse (p);
-		else
-			parport_gsc_data_forward (p);
-	}
-
-	/* Restrict mask and val to control lines. */
-	mask &= wm;
-	val &= wm;
-
-	return __parport_gsc_frob_control (p, mask, val);
-}
-
-extern __inline__ unsigned char parport_gsc_read_status(struct parport *p)
-{
-	return parport_readb (STATUS(p));
-}
-
-
-extern __inline__ void parport_gsc_disable_irq(struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x10, 0x00);
-}
-
-extern __inline__ void parport_gsc_enable_irq(struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x10, 0x10);
-}
-
-extern void parport_gsc_release_resources(struct parport *p);
-
-extern int parport_gsc_claim_resources(struct parport *p);
-
-extern void parport_gsc_init_state(struct pardevice *, struct parport_state *s);
-
-extern void parport_gsc_save_state(struct parport *p, struct parport_state *s);
-
-extern void parport_gsc_restore_state(struct parport *p, struct parport_state *s);
-
-extern void parport_gsc_inc_use_count(void);
-
-extern void parport_gsc_dec_use_count(void);
-
-extern struct parport *parport_gsc_probe_port (unsigned long base,
-					      unsigned long base_hi,
-					      int irq, int dma,
-					      struct pci_dev *dev);
-
-#endif
--- drivers/parport/parport_gsc.h.Orig	1970-01-01 01:00:00.000000000 +0100
+++ drivers/parport/parport_gsc.h	2004-12-29 20:25:09.872226309 +0100
@@ -0,0 +1,222 @@
+/*
+ *	Low-level parallel-support for PC-style hardware integrated in the
+ *	LASI-Controller (on GSC-Bus) for HP-PARISC Workstations
+ *
+ *	(C) 1999-2001 by Helge Deller <deller@gmx.de>
+ *
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; either version 2 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program; if not, write to the Free Software
+ *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * based on parport_pc.c by
+ * 	    Grant Guenther <grant@torque.net>
+ * 	    Phil Blundell <Philip.Blundell@pobox.com>
+ *          Tim Waugh <tim@cyberelk.demon.co.uk>
+ *	    Jose Renau <renau@acm.org>
+ *          David Campbell <campbell@torque.net>
+ *          Andrea Arcangeli
+ */
+
+#ifndef	__DRIVERS_PARPORT_PARPORT_GSC_H
+#define	__DRIVERS_PARPORT_PARPORT_GSC_H
+
+#include <asm/io.h>
+#include <linux/delay.h>
+
+#undef	DEBUG_PARPORT	/* undefine for production */
+#define DELAY_TIME 	0
+
+#if DELAY_TIME == 0
+#define parport_readb	gsc_readb
+#define parport_writeb	gsc_writeb
+#else
+static __inline__ unsigned char parport_readb( unsigned long port )
+{
+    udelay(DELAY_TIME);
+    return gsc_readb(port);
+}
+
+static __inline__ void parport_writeb( unsigned char value, unsigned long port )
+{
+    gsc_writeb(value,port);
+    udelay(DELAY_TIME);
+}
+#endif
+
+/* --- register definitions ------------------------------- */
+
+#define EPPDATA(p)  ((p)->base    + 0x4)
+#define EPPADDR(p)  ((p)->base    + 0x3)
+#define CONTROL(p)  ((p)->base    + 0x2)
+#define STATUS(p)   ((p)->base    + 0x1)
+#define DATA(p)     ((p)->base    + 0x0)
+
+struct parport_gsc_private {
+	/* Contents of CTR. */
+	unsigned char ctr;
+
+	/* Bitmask of writable CTR bits. */
+	unsigned char ctr_writable;
+
+	/* Number of bytes per portword. */
+	int pword;
+
+	/* Not used yet. */
+	int readIntrThreshold;
+	int writeIntrThreshold;
+
+	/* buffer suitable for DMA, if DMA enabled */
+	char *dma_buf;
+	dma_addr_t dma_handle;
+	struct pci_dev *dev;
+};
+
+static inline void parport_gsc_write_data(struct parport *p, unsigned char d)
+{
+#ifdef DEBUG_PARPORT
+	printk (KERN_DEBUG "parport_gsc_write_data(%p,0x%02x)\n", p, d);
+#endif
+	parport_writeb(d, DATA(p));
+}
+
+static inline unsigned char parport_gsc_read_data(struct parport *p)
+{
+	unsigned char val = parport_readb (DATA (p));
+#ifdef DEBUG_PARPORT
+	printk (KERN_DEBUG "parport_gsc_read_data(%p) = 0x%02x\n",
+		p, val);
+#endif
+	return val;
+}
+
+/* __parport_gsc_frob_control differs from parport_gsc_frob_control in that
+ * it doesn't do any extra masking. */
+static inline unsigned char __parport_gsc_frob_control(struct parport *p,
+							unsigned char mask,
+							unsigned char val)
+{
+	struct parport_gsc_private *priv = p->physport->private_data;
+	unsigned char ctr = priv->ctr;
+#ifdef DEBUG_PARPORT
+	printk (KERN_DEBUG
+		"__parport_gsc_frob_control(%02x,%02x): %02x -> %02x\n",
+		mask, val, ctr, ((ctr & ~mask) ^ val) & priv->ctr_writable);
+#endif
+	ctr = (ctr & ~mask) ^ val;
+	ctr &= priv->ctr_writable; /* only write writable bits. */
+	parport_writeb (ctr, CONTROL (p));
+	priv->ctr = ctr;	/* Update soft copy */
+	return ctr;
+}
+
+static inline void parport_gsc_data_reverse(struct parport *p)
+{
+	__parport_gsc_frob_control (p, 0x20, 0x20);
+}
+
+static inline void parport_gsc_data_forward(struct parport *p)
+{
+	__parport_gsc_frob_control (p, 0x20, 0x00);
+}
+
+static inline void parport_gsc_write_control(struct parport *p,
+						 unsigned char d)
+{
+	const unsigned char wm = (PARPORT_CONTROL_STROBE |
+				  PARPORT_CONTROL_AUTOFD |
+				  PARPORT_CONTROL_INIT |
+				  PARPORT_CONTROL_SELECT);
+
+	/* Take this out when drivers have adapted to newer interface. */
+	if (d & 0x20) {
+		printk (KERN_DEBUG "%s (%s): use data_reverse for this!\n",
+			p->name, p->cad->name);
+		parport_gsc_data_reverse (p);
+	}
+
+	__parport_gsc_frob_control (p, wm, d & wm);
+}
+
+static inline unsigned char parport_gsc_read_control(struct parport *p)
+{
+	const unsigned char rm = (PARPORT_CONTROL_STROBE |
+				  PARPORT_CONTROL_AUTOFD |
+				  PARPORT_CONTROL_INIT |
+				  PARPORT_CONTROL_SELECT);
+	const struct parport_gsc_private *priv = p->physport->private_data;
+	return priv->ctr & rm; /* Use soft copy */
+}
+
+static inline unsigned char parport_gsc_frob_control(struct parport *p,
+							unsigned char mask,
+							unsigned char val)
+{
+	const unsigned char wm = (PARPORT_CONTROL_STROBE |
+				  PARPORT_CONTROL_AUTOFD |
+				  PARPORT_CONTROL_INIT |
+				  PARPORT_CONTROL_SELECT);
+
+	/* Take this out when drivers have adapted to newer interface. */
+	if (mask & 0x20) {
+		printk (KERN_DEBUG "%s (%s): use data_%s for this!\n",
+			p->name, p->cad->name,
+			(val & 0x20) ? "reverse" : "forward");
+		if (val & 0x20)
+			parport_gsc_data_reverse (p);
+		else
+			parport_gsc_data_forward (p);
+	}
+
+	/* Restrict mask and val to control lines. */
+	mask &= wm;
+	val &= wm;
+
+	return __parport_gsc_frob_control (p, mask, val);
+}
+
+static inline unsigned char parport_gsc_read_status(struct parport *p)
+{
+	return parport_readb (STATUS(p));
+}
+
+static inline void parport_gsc_disable_irq(struct parport *p)
+{
+	__parport_gsc_frob_control (p, 0x10, 0x00);
+}
+
+static inline void parport_gsc_enable_irq(struct parport *p)
+{
+	__parport_gsc_frob_control (p, 0x10, 0x10);
+}
+
+extern void parport_gsc_release_resources(struct parport *p);
+
+extern int parport_gsc_claim_resources(struct parport *p);
+
+extern void parport_gsc_init_state(struct pardevice *, struct parport_state *s);
+
+extern void parport_gsc_save_state(struct parport *p, struct parport_state *s);
+
+extern void parport_gsc_restore_state(struct parport *p, struct parport_state *s);
+
+extern void parport_gsc_inc_use_count(void);
+
+extern void parport_gsc_dec_use_count(void);
+
+extern struct parport *parport_gsc_probe_port(unsigned long base,
+						unsigned long base_hi,
+						int irq, int dma,
+						struct pci_dev *dev);
+
+#endif	/* __DRIVERS_PARPORT_PARPORT_GSC_H */
--- drivers/parport/parport_gsc.c.Orig	2004-12-29 13:11:41.371485993 +0100
+++ drivers/parport/parport_gsc.c	2004-12-29 20:07:39.873552874 +0100
@@ -42,7 +42,7 @@
  #include <asm/pdc.h>
  #include <asm/parisc-device.h>
  #include <asm/hardware.h>
-#include <asm/parport_gsc.h>
+#include "parport_gsc.h"


  MODULE_AUTHOR("Helge Deller <deller@gmx.de>");
@@ -87,95 +87,6 @@
  	return IRQ_HANDLED;
  }

-void parport_gsc_write_data(struct parport *p, unsigned char d)
-{
-	parport_writeb (d, DATA (p));
-}
-
-unsigned char parport_gsc_read_data(struct parport *p)
-{
-	unsigned char c = parport_readb (DATA (p));
-	return c;
-}
-
-void parport_gsc_write_control(struct parport *p, unsigned char d)
-{
-	const unsigned char wm = (PARPORT_CONTROL_STROBE |
-				  PARPORT_CONTROL_AUTOFD |
-				  PARPORT_CONTROL_INIT |
-				  PARPORT_CONTROL_SELECT);
-
-	/* Take this out when drivers have adapted to the newer interface. */
-	if (d & 0x20) {
-		pr_debug("%s (%s): use data_reverse for this!\n",
-			    p->name, p->cad->name);
-		parport_gsc_data_reverse (p);
-	}
-
-	__parport_gsc_frob_control (p, wm, d & wm);
-}
-
-unsigned char parport_gsc_read_control(struct parport *p)
-{
-	const unsigned char wm = (PARPORT_CONTROL_STROBE |
-				  PARPORT_CONTROL_AUTOFD |
-				  PARPORT_CONTROL_INIT |
-				  PARPORT_CONTROL_SELECT);
-	const struct parport_gsc_private *priv = p->physport->private_data;
-	return priv->ctr & wm; /* Use soft copy */
-}
-
-unsigned char parport_gsc_frob_control (struct parport *p, unsigned char mask,
-				       unsigned char val)
-{
-	const unsigned char wm = (PARPORT_CONTROL_STROBE |
-				  PARPORT_CONTROL_AUTOFD |
-				  PARPORT_CONTROL_INIT |
-				  PARPORT_CONTROL_SELECT);
-
-	/* Take this out when drivers have adapted to the newer interface. */
-	if (mask & 0x20) {
-		pr_debug("%s (%s): use data_%s for this!\n",
-			p->name, p->cad->name,
-			(val & 0x20) ? "reverse" : "forward");
-		if (val & 0x20)
-			parport_gsc_data_reverse (p);
-		else
-			parport_gsc_data_forward (p);
-	}
-
-	/* Restrict mask and val to control lines. */
-	mask &= wm;
-	val &= wm;
-
-	return __parport_gsc_frob_control (p, mask, val);
-}
-
-unsigned char parport_gsc_read_status(struct parport *p)
-{
-	return parport_readb (STATUS (p));
-}
-
-void parport_gsc_disable_irq(struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x10, 0);
-}
-
-void parport_gsc_enable_irq(struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x10, 0x10);
-}
-
-void parport_gsc_data_forward (struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x20, 0);
-}
-
-void parport_gsc_data_reverse (struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x20, 0x20);
-}
-
  void parport_gsc_init_state(struct pardevice *dev, struct parport_state *s)
  {
  	s->u.pc.ctr = 0xc | (dev->irq_func ? 0x10 : 0x0);
=========><=========

(I just test it with gcc-3.4.3-6 kernel compiles well)

hth,
	Joel

PS: Also joined patch files in case of bad wraping

--------------000002040600050003070403
Content-Type: text/plain;
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--- drivers/parport/parport_gsc.c.Orig	2004-12-29 13:11:41.371485993 +0100
+++ drivers/parport/parport_gsc.c	2004-12-29 20:07:39.873552874 +0100
@@ -42,7 +42,7 @@
 #include <asm/pdc.h>
 #include <asm/parisc-device.h>
 #include <asm/hardware.h>
-#include <asm/parport_gsc.h>
+#include "parport_gsc.h"
 
 
 MODULE_AUTHOR("Helge Deller <deller@gmx.de>");
@@ -87,95 +87,6 @@
 	return IRQ_HANDLED;
 }
 
-void parport_gsc_write_data(struct parport *p, unsigned char d)
-{
-	parport_writeb (d, DATA (p));
-}
-
-unsigned char parport_gsc_read_data(struct parport *p)
-{
-	unsigned char c = parport_readb (DATA (p));
-	return c;
-}
-
-void parport_gsc_write_control(struct parport *p, unsigned char d)
-{
-	const unsigned char wm = (PARPORT_CONTROL_STROBE |
-				  PARPORT_CONTROL_AUTOFD |
-				  PARPORT_CONTROL_INIT |
-				  PARPORT_CONTROL_SELECT);
-
-	/* Take this out when drivers have adapted to the newer interface. */
-	if (d & 0x20) {
-		pr_debug("%s (%s): use data_reverse for this!\n",
-			    p->name, p->cad->name);
-		parport_gsc_data_reverse (p);
-	}
-
-	__parport_gsc_frob_control (p, wm, d & wm);
-}
-
-unsigned char parport_gsc_read_control(struct parport *p)
-{
-	const unsigned char wm = (PARPORT_CONTROL_STROBE |
-				  PARPORT_CONTROL_AUTOFD |
-				  PARPORT_CONTROL_INIT |
-				  PARPORT_CONTROL_SELECT);
-	const struct parport_gsc_private *priv = p->physport->private_data;
-	return priv->ctr & wm; /* Use soft copy */
-}
-
-unsigned char parport_gsc_frob_control (struct parport *p, unsigned char mask,
-				       unsigned char val)
-{
-	const unsigned char wm = (PARPORT_CONTROL_STROBE |
-				  PARPORT_CONTROL_AUTOFD |
-				  PARPORT_CONTROL_INIT |
-				  PARPORT_CONTROL_SELECT);
-
-	/* Take this out when drivers have adapted to the newer interface. */
-	if (mask & 0x20) {
-		pr_debug("%s (%s): use data_%s for this!\n",
-			p->name, p->cad->name,
-			(val & 0x20) ? "reverse" : "forward");
-		if (val & 0x20)
-			parport_gsc_data_reverse (p);
-		else
-			parport_gsc_data_forward (p);
-	}
-
-	/* Restrict mask and val to control lines. */
-	mask &= wm;
-	val &= wm;
-
-	return __parport_gsc_frob_control (p, mask, val);
-}
-
-unsigned char parport_gsc_read_status(struct parport *p)
-{
-	return parport_readb (STATUS (p));
-}
-
-void parport_gsc_disable_irq(struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x10, 0);
-}
-
-void parport_gsc_enable_irq(struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x10, 0x10);
-}
-
-void parport_gsc_data_forward (struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x20, 0);
-}
-
-void parport_gsc_data_reverse (struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x20, 0x20);
-}
-
 void parport_gsc_init_state(struct pardevice *dev, struct parport_state *s)
 {
 	s->u.pc.ctr = 0xc | (dev->irq_func ? 0x10 : 0x0);

--------------000002040600050003070403
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--- include/asm-parisc/parport_gsc.h.Orig	2004-12-29 16:17:31.110118022 +0100
+++ include/asm-parisc/parport_gsc.h	1970-01-01 01:00:00.000000000 +0100
@@ -1,193 +0,0 @@
-#ifndef __LINUX_PARPORT_GSC_H
-#define __LINUX_PARPORT_GSC_H
-
-#include <asm/io.h>
-#include <linux/delay.h>
-
-#undef	DEBUG_PARPORT	/* undefine for production */
-#define DELAY_TIME 	0
-
-#if DELAY_TIME == 0
-#define parport_readb	gsc_readb
-#define parport_writeb	gsc_writeb
-#else
-static __inline__ unsigned char parport_readb( unsigned long port )
-{
-    udelay(DELAY_TIME);
-    return gsc_readb(port);
-}
-
-static __inline__ void parport_writeb( unsigned char value, unsigned long port )
-{
-    gsc_writeb(value,port);
-    udelay(DELAY_TIME);
-}
-#endif
-
-/* --- register definitions ------------------------------- */
-
-#define EPPDATA(p)  ((p)->base    + 0x4)
-#define EPPADDR(p)  ((p)->base    + 0x3)
-#define CONTROL(p)  ((p)->base    + 0x2)
-#define STATUS(p)   ((p)->base    + 0x1)
-#define DATA(p)     ((p)->base    + 0x0)
-
-struct parport_gsc_private {
-	/* Contents of CTR. */
-	unsigned char ctr;
-
-	/* Bitmask of writable CTR bits. */
-	unsigned char ctr_writable;
-
-	/* Number of bytes per portword. */
-	int pword;
-
-	/* Not used yet. */
-	int readIntrThreshold;
-	int writeIntrThreshold;
-
-	/* buffer suitable for DMA, if DMA enabled */
-	char *dma_buf;
-	dma_addr_t dma_handle;
-	struct pci_dev *dev;
-};
-
-extern __inline__ void parport_gsc_write_data(struct parport *p, unsigned char d)
-{
-#ifdef DEBUG_PARPORT
-	printk (KERN_DEBUG "parport_gsc_write_data(%p,0x%02x)\n", p, d);
-#endif
-	parport_writeb(d, DATA(p));
-}
-
-extern __inline__ unsigned char parport_gsc_read_data(struct parport *p)
-{
-	unsigned char val = parport_readb (DATA (p));
-#ifdef DEBUG_PARPORT
-	printk (KERN_DEBUG "parport_gsc_read_data(%p) = 0x%02x\n",
-		p, val);
-#endif
-	return val;
-}
-
-/* __parport_gsc_frob_control differs from parport_gsc_frob_control in that
- * it doesn't do any extra masking. */
-static __inline__ unsigned char __parport_gsc_frob_control (struct parport *p,
-							   unsigned char mask,
-							   unsigned char val)
-{
-	struct parport_gsc_private *priv = p->physport->private_data;
-	unsigned char ctr = priv->ctr;
-#ifdef DEBUG_PARPORT
-	printk (KERN_DEBUG
-		"__parport_gsc_frob_control(%02x,%02x): %02x -> %02x\n",
-		mask, val, ctr, ((ctr & ~mask) ^ val) & priv->ctr_writable);
-#endif
-	ctr = (ctr & ~mask) ^ val;
-	ctr &= priv->ctr_writable; /* only write writable bits. */
-	parport_writeb (ctr, CONTROL (p));
-	priv->ctr = ctr;	/* Update soft copy */
-	return ctr;
-}
-
-extern __inline__ void parport_gsc_data_reverse (struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x20, 0x20);
-}
-
-extern __inline__ void parport_gsc_data_forward (struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x20, 0x00);
-}
-
-extern __inline__ void parport_gsc_write_control (struct parport *p,
-						 unsigned char d)
-{
-	const unsigned char wm = (PARPORT_CONTROL_STROBE |
-				  PARPORT_CONTROL_AUTOFD |
-				  PARPORT_CONTROL_INIT |
-				  PARPORT_CONTROL_SELECT);
-
-	/* Take this out when drivers have adapted to newer interface. */
-	if (d & 0x20) {
-		printk (KERN_DEBUG "%s (%s): use data_reverse for this!\n",
-			p->name, p->cad->name);
-		parport_gsc_data_reverse (p);
-	}
-
-	__parport_gsc_frob_control (p, wm, d & wm);
-}
-
-extern __inline__ unsigned char parport_gsc_read_control(struct parport *p)
-{
-	const unsigned char rm = (PARPORT_CONTROL_STROBE |
-				  PARPORT_CONTROL_AUTOFD |
-				  PARPORT_CONTROL_INIT |
-				  PARPORT_CONTROL_SELECT);
-	const struct parport_gsc_private *priv = p->physport->private_data;
-	return priv->ctr & rm; /* Use soft copy */
-}
-
-extern __inline__ unsigned char parport_gsc_frob_control (struct parport *p,
-							 unsigned char mask,
-							 unsigned char val)
-{
-	const unsigned char wm = (PARPORT_CONTROL_STROBE |
-				  PARPORT_CONTROL_AUTOFD |
-				  PARPORT_CONTROL_INIT |
-				  PARPORT_CONTROL_SELECT);
-
-	/* Take this out when drivers have adapted to newer interface. */
-	if (mask & 0x20) {
-		printk (KERN_DEBUG "%s (%s): use data_%s for this!\n",
-			p->name, p->cad->name,
-			(val & 0x20) ? "reverse" : "forward");
-		if (val & 0x20)
-			parport_gsc_data_reverse (p);
-		else
-			parport_gsc_data_forward (p);
-	}
-
-	/* Restrict mask and val to control lines. */
-	mask &= wm;
-	val &= wm;
-
-	return __parport_gsc_frob_control (p, mask, val);
-}
-
-extern __inline__ unsigned char parport_gsc_read_status(struct parport *p)
-{
-	return parport_readb (STATUS(p));
-}
-
-
-extern __inline__ void parport_gsc_disable_irq(struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x10, 0x00);
-}
-
-extern __inline__ void parport_gsc_enable_irq(struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x10, 0x10);
-}
-
-extern void parport_gsc_release_resources(struct parport *p);
-
-extern int parport_gsc_claim_resources(struct parport *p);
-
-extern void parport_gsc_init_state(struct pardevice *, struct parport_state *s);
-
-extern void parport_gsc_save_state(struct parport *p, struct parport_state *s);
-
-extern void parport_gsc_restore_state(struct parport *p, struct parport_state *s);
-
-extern void parport_gsc_inc_use_count(void);
-
-extern void parport_gsc_dec_use_count(void);
-
-extern struct parport *parport_gsc_probe_port (unsigned long base,
-					      unsigned long base_hi,
-					      int irq, int dma,
-					      struct pci_dev *dev);
-
-#endif

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--- drivers/parport/parport_gsc.h.Orig	1970-01-01 01:00:00.000000000 +0100
+++ drivers/parport/parport_gsc.h	2004-12-29 20:25:09.872226309 +0100
@@ -0,0 +1,222 @@
+/*
+ *	Low-level parallel-support for PC-style hardware integrated in the 
+ *	LASI-Controller (on GSC-Bus) for HP-PARISC Workstations
+ *
+ *	(C) 1999-2001 by Helge Deller <deller@gmx.de>
+ *
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; either version 2 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program; if not, write to the Free Software
+ *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * 
+ * based on parport_pc.c by 
+ * 	    Grant Guenther <grant@torque.net>
+ * 	    Phil Blundell <Philip.Blundell@pobox.com>
+ *          Tim Waugh <tim@cyberelk.demon.co.uk>
+ *	    Jose Renau <renau@acm.org>
+ *          David Campbell <campbell@torque.net>
+ *          Andrea Arcangeli
+ */
+
+#ifndef	__DRIVERS_PARPORT_PARPORT_GSC_H
+#define	__DRIVERS_PARPORT_PARPORT_GSC_H
+
+#include <asm/io.h>
+#include <linux/delay.h>
+
+#undef	DEBUG_PARPORT	/* undefine for production */
+#define DELAY_TIME 	0
+
+#if DELAY_TIME == 0
+#define parport_readb	gsc_readb
+#define parport_writeb	gsc_writeb
+#else
+static __inline__ unsigned char parport_readb( unsigned long port )
+{
+    udelay(DELAY_TIME);
+    return gsc_readb(port);
+}
+
+static __inline__ void parport_writeb( unsigned char value, unsigned long port )
+{
+    gsc_writeb(value,port);
+    udelay(DELAY_TIME);
+}
+#endif
+
+/* --- register definitions ------------------------------- */
+
+#define EPPDATA(p)  ((p)->base    + 0x4)
+#define EPPADDR(p)  ((p)->base    + 0x3)
+#define CONTROL(p)  ((p)->base    + 0x2)
+#define STATUS(p)   ((p)->base    + 0x1)
+#define DATA(p)     ((p)->base    + 0x0)
+
+struct parport_gsc_private {
+	/* Contents of CTR. */
+	unsigned char ctr;
+
+	/* Bitmask of writable CTR bits. */
+	unsigned char ctr_writable;
+
+	/* Number of bytes per portword. */
+	int pword;
+
+	/* Not used yet. */
+	int readIntrThreshold;
+	int writeIntrThreshold;
+
+	/* buffer suitable for DMA, if DMA enabled */
+	char *dma_buf;
+	dma_addr_t dma_handle;
+	struct pci_dev *dev;
+};
+
+static inline void parport_gsc_write_data(struct parport *p, unsigned char d)
+{
+#ifdef DEBUG_PARPORT
+	printk (KERN_DEBUG "parport_gsc_write_data(%p,0x%02x)\n", p, d);
+#endif
+	parport_writeb(d, DATA(p));
+}
+
+static inline unsigned char parport_gsc_read_data(struct parport *p)
+{
+	unsigned char val = parport_readb (DATA (p));
+#ifdef DEBUG_PARPORT
+	printk (KERN_DEBUG "parport_gsc_read_data(%p) = 0x%02x\n",
+		p, val);
+#endif
+	return val;
+}
+
+/* __parport_gsc_frob_control differs from parport_gsc_frob_control in that
+ * it doesn't do any extra masking. */
+static inline unsigned char __parport_gsc_frob_control(struct parport *p,
+							unsigned char mask,
+							unsigned char val)
+{
+	struct parport_gsc_private *priv = p->physport->private_data;
+	unsigned char ctr = priv->ctr;
+#ifdef DEBUG_PARPORT
+	printk (KERN_DEBUG
+		"__parport_gsc_frob_control(%02x,%02x): %02x -> %02x\n",
+		mask, val, ctr, ((ctr & ~mask) ^ val) & priv->ctr_writable);
+#endif
+	ctr = (ctr & ~mask) ^ val;
+	ctr &= priv->ctr_writable; /* only write writable bits. */
+	parport_writeb (ctr, CONTROL (p));
+	priv->ctr = ctr;	/* Update soft copy */
+	return ctr;
+}
+
+static inline void parport_gsc_data_reverse(struct parport *p)
+{
+	__parport_gsc_frob_control (p, 0x20, 0x20);
+}
+
+static inline void parport_gsc_data_forward(struct parport *p)
+{
+	__parport_gsc_frob_control (p, 0x20, 0x00);
+}
+
+static inline void parport_gsc_write_control(struct parport *p,
+						 unsigned char d)
+{
+	const unsigned char wm = (PARPORT_CONTROL_STROBE |
+				  PARPORT_CONTROL_AUTOFD |
+				  PARPORT_CONTROL_INIT |
+				  PARPORT_CONTROL_SELECT);
+
+	/* Take this out when drivers have adapted to newer interface. */
+	if (d & 0x20) {
+		printk (KERN_DEBUG "%s (%s): use data_reverse for this!\n",
+			p->name, p->cad->name);
+		parport_gsc_data_reverse (p);
+	}
+
+	__parport_gsc_frob_control (p, wm, d & wm);
+}
+
+static inline unsigned char parport_gsc_read_control(struct parport *p)
+{
+	const unsigned char rm = (PARPORT_CONTROL_STROBE |
+				  PARPORT_CONTROL_AUTOFD |
+				  PARPORT_CONTROL_INIT |
+				  PARPORT_CONTROL_SELECT);
+	const struct parport_gsc_private *priv = p->physport->private_data;
+	return priv->ctr & rm; /* Use soft copy */
+}
+
+static inline unsigned char parport_gsc_frob_control(struct parport *p,
+							unsigned char mask,
+							unsigned char val)
+{
+	const unsigned char wm = (PARPORT_CONTROL_STROBE |
+				  PARPORT_CONTROL_AUTOFD |
+				  PARPORT_CONTROL_INIT |
+				  PARPORT_CONTROL_SELECT);
+
+	/* Take this out when drivers have adapted to newer interface. */
+	if (mask & 0x20) {
+		printk (KERN_DEBUG "%s (%s): use data_%s for this!\n",
+			p->name, p->cad->name,
+			(val & 0x20) ? "reverse" : "forward");
+		if (val & 0x20)
+			parport_gsc_data_reverse (p);
+		else
+			parport_gsc_data_forward (p);
+	}
+
+	/* Restrict mask and val to control lines. */
+	mask &= wm;
+	val &= wm;
+
+	return __parport_gsc_frob_control (p, mask, val);
+}
+
+static inline unsigned char parport_gsc_read_status(struct parport *p)
+{
+	return parport_readb (STATUS(p));
+}
+
+static inline void parport_gsc_disable_irq(struct parport *p)
+{
+	__parport_gsc_frob_control (p, 0x10, 0x00);
+}
+
+static inline void parport_gsc_enable_irq(struct parport *p)
+{
+	__parport_gsc_frob_control (p, 0x10, 0x10);
+}
+
+extern void parport_gsc_release_resources(struct parport *p);
+
+extern int parport_gsc_claim_resources(struct parport *p);
+
+extern void parport_gsc_init_state(struct pardevice *, struct parport_state *s);
+
+extern void parport_gsc_save_state(struct parport *p, struct parport_state *s);
+
+extern void parport_gsc_restore_state(struct parport *p, struct parport_state *s);
+
+extern void parport_gsc_inc_use_count(void);
+
+extern void parport_gsc_dec_use_count(void);
+
+extern struct parport *parport_gsc_probe_port(unsigned long base,
+						unsigned long base_hi,
+						int irq, int dma,
+						struct pci_dev *dev);
+
+#endif	/* __DRIVERS_PARPORT_PARPORT_GSC_H */

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Martin-ric Racine wrote:

>Feel free to forward to the PA-RISC kernel mailing list:
>
>drivers/parport/parport_gsc.c: In function `parport_gsc_write_control':
>drivers/parport/parport_gsc.c:175: sorry, unimplemented: inlining failed in call
>to 'parport_gsc_data_reverse': redefined extern inline functions are not
>considered for inlining
>drivers/parport/parport_gsc.c:112: sorry, unimplemented: called from here
>make[3]: *** [drivers/parport/parport_gsc.o] Error 1
>make[2]: *** [drivers/parport] Error 2
>make[1]: *** [drivers] Error 2
>make[1]: Leaving directory `/usr/src/linux-2.6.10'
>make: *** [stamp-build] Error 2
>
>  
>
mmm don't have such error with gcc-3.3.5.

>This makes 2.6.8.1 the last kernel I could compile, using the same tools:
>
>binutils-hppa-linux       2.15-1
>gcc-hppa-linux            3.4.1-1
>
>  
>
That said there are well something strange: parport_gsc_data_reverse() 
(and some other one) are define twice (once in 
drivers/parport/parport_gsc.c and another in 
include/asm-parisc/parport_gsc.h but fwiw foreseen like this:
[...]
/*
 * Access functions.
 *
 * Most of these aren't static because they may be used by the
 * parport_xxx_yyy macros.  extern __inline__ versions of several
 * of these are in parport_gsc.h.
 */
[...]

Even thought gcc 3.4.1 is bit outdated (3.4.3-6 now), I checked with 
this new and the pb is still the same.

a possible patch could be:
--- drivers/parport/parport_gsc.c.Orig    2004-12-29 13:11:41.371485993 
+0100
+++ drivers/parport/parport_gsc.c    2004-12-29 15:32:43.742960591 +0100
@@ -87,17 +87,6 @@
     return IRQ_HANDLED;
 }
 
-void parport_gsc_write_data(struct parport *p, unsigned char d)
-{
-    parport_writeb (d, DATA (p));
-}
-
-unsigned char parport_gsc_read_data(struct parport *p)
-{
-    unsigned char c = parport_readb (DATA (p));
-    return c;
-}
-
 void parport_gsc_write_control(struct parport *p, unsigned char d)
 {
     const unsigned char wm = (PARPORT_CONTROL_STROBE |
@@ -151,11 +140,6 @@
     return __parport_gsc_frob_control (p, mask, val);
 }
 
-unsigned char parport_gsc_read_status(struct parport *p)
-{
-    return parport_readb (STATUS (p));
-}
-
 void parport_gsc_disable_irq(struct parport *p)
 {
     __parport_gsc_frob_control (p, 0x10, 0);
@@ -166,16 +150,6 @@
     __parport_gsc_frob_control (p, 0x10, 0x10);
 }
 
-void parport_gsc_data_forward (struct parport *p)
-{
-    __parport_gsc_frob_control (p, 0x20, 0);
-}
-
-void parport_gsc_data_reverse (struct parport *p)
-{
-    __parport_gsc_frob_control (p, 0x20, 0x20);
-}
-
 void parport_gsc_init_state(struct pardevice *dev, struct parport_state *s)
 {
     s->u.pc.ctr = 0xc | (dev->irq_func ? 0x10 : 0x0);
--- include/asm-parisc/parport_gsc.h.Orig    2004-12-29 
16:17:31.110118022 +0100
+++ include/asm-parisc/parport_gsc.h    2004-12-29 16:28:34.319390619 +0100
@@ -52,7 +52,7 @@
     struct pci_dev *dev;
 };
 
-extern __inline__ void parport_gsc_write_data(struct parport *p, 
unsigned char d)
+static inline void parport_gsc_write_data(struct parport *p, unsigned 
char d)
 {
 #ifdef DEBUG_PARPORT
     printk (KERN_DEBUG "parport_gsc_write_data(%p,0x%02x)\n", p, d);
@@ -60,7 +60,7 @@
     parport_writeb(d, DATA(p));
 }
 
-extern __inline__ unsigned char parport_gsc_read_data(struct parport *p)
+static inline unsigned char parport_gsc_read_data(struct parport *p)
 {
     unsigned char val = parport_readb (DATA (p));
 #ifdef DEBUG_PARPORT
@@ -90,12 +90,12 @@
     return ctr;
 }
 
-extern __inline__ void parport_gsc_data_reverse (struct parport *p)
+static inline void parport_gsc_data_reverse (struct parport *p)
 {
     __parport_gsc_frob_control (p, 0x20, 0x20);
 }
 
-extern __inline__ void parport_gsc_data_forward (struct parport *p)
+static inline void parport_gsc_data_forward (struct parport *p)
 {
     __parport_gsc_frob_control (p, 0x20, 0x00);
 }
@@ -155,7 +155,7 @@
     return __parport_gsc_frob_control (p, mask, val);
 }
 
-extern __inline__ unsigned char parport_gsc_read_status(struct parport *p)
+static inline unsigned char parport_gsc_read_status(struct parport *p)
 {
     return parport_readb (STATUS(p));
 }
=========><=========

Can you test it for me?

Joel

PS: In case of bad wraping I also attached patch files :-)



--------------000106070303090805050000
Content-Type: text/plain;
 name="include_asm-parisc_parport_gsc.h.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="include_asm-parisc_parport_gsc.h.diff"

--- include/asm-parisc/parport_gsc.h.Orig	2004-12-29 16:17:31.110118022 +0100
+++ include/asm-parisc/parport_gsc.h	2004-12-29 16:28:34.319390619 +0100
@@ -52,7 +52,7 @@
 	struct pci_dev *dev;
 };
 
-extern __inline__ void parport_gsc_write_data(struct parport *p, unsigned char d)
+static inline void parport_gsc_write_data(struct parport *p, unsigned char d)
 {
 #ifdef DEBUG_PARPORT
 	printk (KERN_DEBUG "parport_gsc_write_data(%p,0x%02x)\n", p, d);
@@ -60,7 +60,7 @@
 	parport_writeb(d, DATA(p));
 }
 
-extern __inline__ unsigned char parport_gsc_read_data(struct parport *p)
+static inline unsigned char parport_gsc_read_data(struct parport *p)
 {
 	unsigned char val = parport_readb (DATA (p));
 #ifdef DEBUG_PARPORT
@@ -90,12 +90,12 @@
 	return ctr;
 }
 
-extern __inline__ void parport_gsc_data_reverse (struct parport *p)
+static inline void parport_gsc_data_reverse (struct parport *p)
 {
 	__parport_gsc_frob_control (p, 0x20, 0x20);
 }
 
-extern __inline__ void parport_gsc_data_forward (struct parport *p)
+static inline void parport_gsc_data_forward (struct parport *p)
 {
 	__parport_gsc_frob_control (p, 0x20, 0x00);
 }
@@ -155,7 +155,7 @@
 	return __parport_gsc_frob_control (p, mask, val);
 }
 
-extern __inline__ unsigned char parport_gsc_read_status(struct parport *p)
+static inline unsigned char parport_gsc_read_status(struct parport *p)
 {
 	return parport_readb (STATUS(p));
 }

--------------000106070303090805050000
Content-Type: text/plain;
 name="drivers_parport_parport_gsc.c.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="drivers_parport_parport_gsc.c.diff"

--- drivers/parport/parport_gsc.c.Orig	2004-12-29 13:11:41.371485993 +0100
+++ drivers/parport/parport_gsc.c	2004-12-29 15:32:43.742960591 +0100
@@ -87,17 +87,6 @@
 	return IRQ_HANDLED;
 }
 
-void parport_gsc_write_data(struct parport *p, unsigned char d)
-{
-	parport_writeb (d, DATA (p));
-}
-
-unsigned char parport_gsc_read_data(struct parport *p)
-{
-	unsigned char c = parport_readb (DATA (p));
-	return c;
-}
-
 void parport_gsc_write_control(struct parport *p, unsigned char d)
 {
 	const unsigned char wm = (PARPORT_CONTROL_STROBE |
@@ -151,11 +140,6 @@
 	return __parport_gsc_frob_control (p, mask, val);
 }
 
-unsigned char parport_gsc_read_status(struct parport *p)
-{
-	return parport_readb (STATUS (p));
-}
-
 void parport_gsc_disable_irq(struct parport *p)
 {
 	__parport_gsc_frob_control (p, 0x10, 0);
@@ -166,16 +150,6 @@
 	__parport_gsc_frob_control (p, 0x10, 0x10);
 }
 
-void parport_gsc_data_forward (struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x20, 0);
-}
-
-void parport_gsc_data_reverse (struct parport *p)
-{
-	__parport_gsc_frob_control (p, 0x20, 0x20);
-}

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On Wed, Dec 29, 2004 at 03:38:05PM +0000, Joel Soete wrote:
> mmm don't have such error with gcc-3.3.5.

We had this discussion two months ago.

http://lists.debian.org/debian-hppa/2004/10/msg00021.html

-- 
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On Wed, 2004-12-29 at 14:19 -0500, Mike Frysinger wrote:
>  target0:0:9: Write Buffer failure 8000002
>  target0:0:9: Domain Validation detected failure, dropping back

So now I'd like to see what this is ... it causes your nice ultra3 drive
only to work at async speeds (about 4MB/s).  Can you apply the patch and
send back the output?

Thanks,

James

===== drivers/scsi/scsi_transport_spi.c 1.21 vs edited =====
--- 1.21/drivers/scsi/scsi_transport_spi.c	2004-12-06 14:51:40 -06:00
+++ edited/drivers/scsi/scsi_transport_spi.c	2004-12-29 15:18:12 -06:00
@@ -33,6 +33,7 @@
 #include <scsi/scsi_request.h>
 #include <scsi/scsi_transport.h>
 #include <scsi/scsi_transport_spi.h>
+#include <scsi/scsi_dbg.h>
 
 #define SPI_PRINTK(x, l, f, a...)	dev_printk(l, &(x)->dev, f , ##a)
 
@@ -440,6 +441,7 @@
 		if(sreq->sr_result || !scsi_device_online(sdev)) {
 			scsi_device_set_state(sdev, SDEV_QUIESCE);
 			SPI_PRINTK(sdev->sdev_target, KERN_ERR, "Write Buffer failure %x\n", sreq->sr_result);
+			scsi_print_req_sense("DV", sreq);
 			return 0;
 		}
 
@@ -642,6 +644,7 @@
 		SPI_PRINTK(sdev->sdev_target, KERN_INFO, "Domain Validation skipping write tests\n");
 		return;
 	}
+	SPI_PRINTK(sdev->sdev_target, KERN_INFO, "Domain Validation write buffer length %d\n", len);
 	if (len > SPI_MAX_ECHO_BUFFER_SIZE) {
 		SPI_PRINTK(sdev->sdev_target, KERN_WARNING, "Echo buffer size %d is too big, trimming to %d\n", len, SPI_MAX_ECHO_BUFFER_SIZE);
 		len = SPI_MAX_ECHO_BUFFER_SIZE;


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On Wednesday 29 December 2004 04:28 pm, James Bottomley wrote:
> So now I'd like to see what this is ... it causes your nice ultra3 drive
> only to work at async speeds (about 4MB/s).

i'll be the first to admit that i dont know much about scsi ... but even 
though my drive is an ultra3, i thought my built in C360 controller didnt 
support that ?
from lspci:
SCSI storage controller: LSI Logic / Symbios Logic 53c875 (rev 04)

> Can you apply the patch and send back the output?

attached
-mike

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	name="2.6.10-pa1-scsi-debug-patch5"
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	filename="2.6.10-pa1-scsi-debug-patch5"

sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18m
elevator: using anticipatory as default io scheduler
  Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:6:0: tagged command queuing enabled, command queue depth 16.
 target0:0:6: Beginning Domain Validation
sym0:6:wide msgout: 1-2-3-1.
sym0:6:wide msgin: 1-2-3-1.
sym0:6:wdtr: wide=1 chg=0.
sym0:6:sync msgout: 1-3-1-c-0.
sym0:6:sync msgin: 1-3-1-c-0.
sym0:6:sdtr: ofs=0 per=12 div=0 fak=0 chg=0.
sym0:6: wide asynchronous.
sym0:6:sync msgout: 1-3-1-c-10.
sym0:6:sync msgin: 1-3-1-c-f.
sym0:6:sdtr: ofs=15 per=12 div=0 fak=0 chg=0.
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
 target0:0:6: Domain Validation skipping write tests
 target0:0:6: Ending Domain Validation
sym0:9:ppr msgin: 1-6-4-c-0-3f-1-2.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
sym0:9:ppr msgout: 1-6-4-c-0-10-1-0.
  Vendor: WDIGTL    Model: WDE9150 ULTRA3    Rev: 1.30
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:9:0: tagged command queuing enabled, command queue depth 16.
 target0:0:9: Beginning Domain Validation
sym0:9:wide msgout: 1-2-3-0.
sym0:9:wide msgin: 1-2-3-0.
sym0:9:wdtr: wide=0 chg=0.
sym0:9:sync msgin: 1-3-1-c-1f.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=1.
sym0:9: FAST-20 SCSI 20.0 MB/s ST (50.0 ns, offset 16)
sym0:9:sync msgout: 1-3-1-c-10.
sym0:9:wide msgout: 1-2-3-1.
sym0:9:wide msgin: 1-2-3-1.
sym0:9:wdtr: wide=1 chg=0.
sym0:9:sync msgout: 1-3-1-c-10.
sym0:9:sync msgin: 1-3-1-c-10.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=0.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
 target0:0:9: Domain Validation write buffer length 255
 target0:0:9: Write Buffer failure 8000002
Current DV: sense = 70  5
ASC=24 ASCQ= 0
Raw sense data:0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x18 0xff 0xff 0xff 0xff 0x24 0x00 0x00 0xc0 0x00 0x08 0x00 0xff 0xff 0xff 0xff 0xff 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-d-10.
sym0:9:sync msgin: 1-3-1-19-10.
sym0:9:sdtr: ofs=16 per=25 div=2 fak=0 chg=0.
sym0:9: FAST-10 WIDE SCSI 20.0 MB/s ST (100.0 ns, offset 16)
 target0:0:9: Write Buffer failure 8000002
Current DV: sense = 70  5
ASC=24 ASCQ= 0
Raw sense data:0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x18 0xff 0xff 0xff 0xff 0x24 0x00 0x00 0xc0 0x00 0x08 0x00 0xff 0xff 0xff 0xff 0xff 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-25-10.
sym0:9:sync msgin: 1-3-1-25-10.
sym0:9:sdtr: ofs=16 per=37 div=2 fak=2 chg=0.
sym0:9: FAST-10 WIDE SCSI 13.5 MB/s ST (148.0 ns, offset 16)
 target0:0:9: Write Buffer failure 8000002
Current DV: sense = 70  5
ASC=24 ASCQ= 0
Raw sense data:0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x18 0xff 0xff 0xff 0xff 0x24 0x00 0x00 0xc0 0x00 0x08 0x00 0xff 0xff 0xff 0xff 0xff 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-37-10.
sym0:9:sync msgin: 1-3-1-38-10.
sym0:9:sdtr: ofs=16 per=56 div=4 fak=1 chg=0.
sym0:9: FAST-5 WIDE SCSI 8.9 MB/s ST (224.0 ns, offset 16)
 target0:0:9: Write Buffer failure 8000002
Current DV: sense = 70  5
ASC=24 ASCQ= 0
Raw sense data:0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x18 0xff 0xff 0xff 0xff 0x24 0x00 0x00 0xc0 0x00 0x08 0x00 0xff 0xff 0xff 0xff 0xff 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-54-10.
sym0:9:sync msgin: 1-3-1-57-10.
sym0:9: wide asynchronous.
sym0:9:0:M_REJECT to send for : 1-3-1-57-10.
sym0:9:sync msgout: 1-3-1-c-0.
sym0:9:sync msgin: 1-3-1-c-0.
sym0:9:sdtr: ofs=0 per=12 div=0 fak=0 chg=0.
 target0:0:9: Write Buffer failure 8000002
Current DV: sense = 70  5
ASC=24 ASCQ= 0
Raw sense data:0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x18 0xff 0xff 0xff 0xff 0x24 0x00 0x00 0xc0 0x00 0x08 0x00 0xff 0xff 0xff 0xff 0xff 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-7e-0.
sym0:9:sync msgin: 1-3-1-7e-0.
sym0:9:sdtr: ofs=0 per=126 div=0 fak=0 chg=0.
 target0:0:9: Write Buffer failure 8000002
Current DV: sense = 70  5
ASC=24 ASCQ= 0
Raw sense data:0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x18 0xff 0xff 0xff 0xff 0x24 0x00 0x00 0xc0 0x00 0x08 0x00 0xff 0xff 0xff 0xff 0xff 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-89-0.
sym0:9:sync msgin: 1-3-1-89-0.
sym0:9:sdtr: ofs=0 per=137 div=0 fak=0 chg=0.
 target0:0:9: Write Buffer failure 8000002
Current DV: sense = 70  5
ASC=24 ASCQ= 0
Raw sense data:0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x18 0xff 0xff 0xff 0xff 0x24 0x00 0x00 0xc0 0x00 0x08 0x00 0xff 0xff 0xff 0xff 0xff 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
 target0:0:9: Domain Validation Failure, dropping back to Asynchronous
 target0:0:9: Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
  Vendor: TOSHIBA   Model: CD-ROM XM-5301TA  Rev: 1895
  Type:   CD-ROM                             ANSI SCSI revision: 02
 target1:0:2: Beginning Domain Validation
scsi1: (2:0) Asynchronous
scsi1: (2:0) Synchronous at offset 8, period 236ns
 target1:0:2: Domain Validation skipping write tests
 target1:0:2: Ending Domain Validation
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sdb: 17873040 512-byte hdwr sectors (9151 MB)
SCSI device sdb: drive cache: write back
SCSI device sdb: 17873040 512-byte hdwr sectors (9151 MB)
SCSI device sdb: drive cache: write back
 sdb: unknown partition table
Attached scsi disk sdb at scsi0, channel 0, id 9, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 6, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 9, lun 0,  type 0
Attached scsi generic sg2 at scsi1, channel 0, id 2, lun 0,  type 5

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On Wednesday 29 December 2004 04:49 pm, Mike Frysinger wrote:
> attached

oh, and just so there's no misunderstanding ... this output in dmesg is 
normal:
 sdb: unknown partition table

i formatted /dev/sdb as an ext3 filesystem instead of partitioning it 
first ...
-mike
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On Wed, Dec 29, 2004 at 04:49:29PM -0500, Mike Frysinger wrote:
> On Wednesday 29 December 2004 04:28 pm, James Bottomley wrote:
> > So now I'd like to see what this is ... it causes your nice ultra3 drive
> > only to work at async speeds (about 4MB/s).
> 
> i'll be the first to admit that i dont know much about scsi ... but even 
> though my drive is an ultra3, i thought my built in C360 controller didnt 
> support that ?

That's right, but your drive is capable of FAST-40 and the controller is capable of FAST-20.  They should negotiate a FAST-20 (40MB/s) transfer contract, but
because the drive is doing weird stuff, it keeps falling back ... until it
reaches async, which is just about the slowest contract defined.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] linux-2.6.10-pa1 panic on C360 in SCSI driver
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On Wed, 2004-12-29 at 16:49 -0500, Mike Frysinger wrote:
> Current DV: sense = 70  5
> ASC=24 ASCQ= 0
> Raw sense data:0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x18 0xff 0xff 0xff
> 0xff 0x24 0x00 0x00 0xc0 0x00 0x08 0x00 0xff 0xff 0xff 0xff 0xff 0x00
> 0x00 0x00 0x00 0x00 0x00 0x00 0x00 

This means invalid request, illegal field in cdb and identifies the 8th
field as the illegal one (that's the length of the write buffer
request).  So the thing told us that it supports a write buffer of
length 255 and then tells us our request is too long when we try to
write 255 bytes ... that seems about par for the course for this drive.

Could you try this patch, it halves the write buffer length.  That
should tell us if this drive actually has one and just lies about the
length, or lies about having one altogether.

James

===== drivers/scsi/scsi_transport_spi.c 1.21 vs edited =====
--- 1.21/drivers/scsi/scsi_transport_spi.c	2004-12-06 14:51:40 -06:00
+++ edited/drivers/scsi/scsi_transport_spi.c	2004-12-29 16:36:21 -06:00
@@ -637,6 +639,8 @@
 	len = 0;
 	if (sdev->ppr)
 		len = spi_dv_device_get_echo_buffer(sreq, buffer);
+
+	len = len/2;
 
 	if (len == 0) {
 		SPI_PRINTK(sdev->sdev_target, KERN_INFO, "Domain Validation skipping write tests\n");


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On Wed, 29 Dec 2004, Joel Soete wrote:

> Matthew Wilcox wrote:
> > We had this discussion two months ago.
> >=20
> > http://lists.debian.org/debian-hppa/2004/10/msg00021.html
> =20
> Taken this into account, I move parport_gsc.h into drivers/parport and re=
move stuff from parport_gsc.c
> (btw I add a gnu license to parport_gsc.h based on the one of parport_gsc=
=2Ec ;-)

   1    551 lines   Text/PLAIN
   2    107 lines   Text/PLAIN (Name: "drivers_parport_parport_gsc.c.diff")
   3    196 lines   Text/PLAIN (Name: "include_asm-parisc_parport_gsc.h.dif=
f")
   4    225 lines   Text/PLAIN (Name: "drivers_parport_parport_gsc.h.diff")

Thanks Joel!  The patches finally made it possible to compile 2.6.10-pa1 us=
ing:

binutils-hppa-linux       2.15-1
gcc-hppa-linux            3.4.1-1

Unless the parisc-linux team sees anything wrong with these patches, would =
it be
possible to merge them into the current CVS tree?=20

--=20
Martin-=C9ric Racine, ICT Consultant
http://www.iki.fi/q-funk/





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On Wednesday 29 December 2004 05:37 pm, James Bottomley wrote:
> Could you try this patch, it halves the write buffer length.  That
> should tell us if this drive actually has one and just lies about the
> length, or lies about having one altogether.

added verbose scsi debugging and the patch
-mike

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sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18m
elevator: using anticipatory as default io scheduler
  Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:6:0: tagged command queuing enabled, command queue depth 16.
 target0:0:6: Beginning Domain Validation
sym0:6:wide msgout: 1-2-3-1.
sym0:6:wide msgin: 1-2-3-1.
sym0:6:wdtr: wide=1 chg=0.
sym0:6:sync msgout: 1-3-1-c-0.
sym0:6:sync msgin: 1-3-1-c-0.
sym0:6:sdtr: ofs=0 per=12 div=0 fak=0 chg=0.
sym0:6: wide asynchronous.
sym0:6:sync msgout: 1-3-1-c-10.
sym0:6:sync msgin: 1-3-1-c-f.
sym0:6:sdtr: ofs=15 per=12 div=0 fak=0 chg=0.
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
 target0:0:6: Domain Validation skipping write tests
 target0:0:6: Ending Domain Validation
sym0:9:ppr msgin: 1-6-4-c-0-3f-1-2.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
sym0:9:ppr msgout: 1-6-4-c-0-10-1-0.
  Vendor: WDIGTL    Model: WDE9150 ULTRA3    Rev: 1.30
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:9:0: tagged command queuing enabled, command queue depth 16.
 target0:0:9: Beginning Domain Validation
sym0:9:wide msgout: 1-2-3-0.
sym0:9:wide msgin: 1-2-3-0.
sym0:9:wdtr: wide=0 chg=0.
sym0:9:sync msgin: 1-3-1-c-1f.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=1.
sym0:9: FAST-20 SCSI 20.0 MB/s ST (50.0 ns, offset 16)
sym0:9:sync msgout: 1-3-1-c-10.
sym0:9:wide msgout: 1-2-3-1.
sym0:9:wide msgin: 1-2-3-1.
sym0:9:wdtr: wide=1 chg=0.
sym0:9:sync msgout: 1-3-1-c-10.
sym0:9:sync msgin: 1-3-1-c-10.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=0.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
 target0:0:9: Domain Validation write buffer length 127
 target0:0:9: Write Buffer failure 8000002
Current DV: sense key Illegal Request
Additional sense: Invalid field in cdb
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-d-10.
sym0:9:sync msgin: 1-3-1-19-10.
sym0:9:sdtr: ofs=16 per=25 div=2 fak=0 chg=0.
sym0:9: FAST-10 WIDE SCSI 20.0 MB/s ST (100.0 ns, offset 16)
 target0:0:9: Write Buffer failure 8000002
Current DV: sense key Illegal Request
Additional sense: Invalid field in cdb
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-25-10.
sym0:9:sync msgin: 1-3-1-25-10.
sym0:9:sdtr: ofs=16 per=37 div=2 fak=2 chg=0.
sym0:9: FAST-10 WIDE SCSI 13.5 MB/s ST (148.0 ns, offset 16)
 target0:0:9: Write Buffer failure 8000002
Current DV: sense key Illegal Request
Additional sense: Invalid field in cdb
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-37-10.
sym0:9:sync msgin: 1-3-1-38-10.
sym0:9:sdtr: ofs=16 per=56 div=4 fak=1 chg=0.
sym0:9: FAST-5 WIDE SCSI 8.9 MB/s ST (224.0 ns, offset 16)
 target0:0:9: Write Buffer failure 8000002
Current DV: sense key Illegal Request
Additional sense: Invalid field in cdb
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-54-10.
sym0:9:sync msgin: 1-3-1-57-10.
sym0:9: wide asynchronous.
sym0:9:0:M_REJECT to send for : 1-3-1-57-10.
sym0:9:sync msgout: 1-3-1-c-0.
sym0:9:sync msgin: 1-3-1-c-0.
sym0:9:sdtr: ofs=0 per=12 div=0 fak=0 chg=0.
 target0:0:9: Write Buffer failure 8000002
Current DV: sense key Illegal Request
Additional sense: Invalid field in cdb
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-7e-0.
sym0:9:sync msgin: 1-3-1-7e-0.
sym0:9:sdtr: ofs=0 per=126 div=0 fak=0 chg=0.
 target0:0:9: Write Buffer failure 8000002
Current DV: sense key Illegal Request
Additional sense: Invalid field in cdb
 target0:0:9: Domain Validation detected failure, dropping back
sym0:9:sync msgout: 1-3-1-89-0.
sym0:9:sync msgin: 1-3-1-89-0.
sym0:9:sdtr: ofs=0 per=137 div=0 fak=0 chg=0.
 target0:0:9: Write Buffer failure 8000002
Current DV: sense key Illegal Request
Additional sense: Invalid field in cdb
 target0:0:9: Domain Validation Failure, dropping back to Asynchronous
 target0:0:9: Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
  Vendor: TOSHIBA   Model: CD-ROM XM-5301TA  Rev: 1895
  Type:   CD-ROM                             ANSI SCSI revision: 02
 target1:0:2: Beginning Domain Validation
scsi1: (2:0) Asynchronous
scsi1: (2:0) Synchronous at offset 8, period 236ns
 target1:0:2: Domain Validation skipping write tests
 target1:0:2: Ending Domain Validation
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sdb: 17873040 512-byte hdwr sectors (9151 MB)
SCSI device sdb: drive cache: write back
SCSI device sdb: 17873040 512-byte hdwr sectors (9151 MB)
SCSI device sdb: drive cache: write back
 sdb: unknown partition table
Attached scsi disk sdb at scsi0, channel 0, id 9, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 6, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 9, lun 0,  type 0
Attached scsi generic sg2 at scsi1, channel 0, id 2, lun 0,  type 5

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Subject: front-panel LED and switch support broken (was: 2.6.10-pa1 compile
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Date: Thu, 30 Dec 2004 13:15:46 +0200 (EET)
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On Thu, 30 Dec 2004, Martin-=C9ric Racine wrote:

>    1    551 lines   Text/PLAIN
>    2    107 lines   Text/PLAIN (Name: "drivers_parport_parport_gsc.c.diff=
")
>    3    196 lines   Text/PLAIN (Name: "include_asm-parisc_parport_gsc.h.d=
iff")
>    4    225 lines   Text/PLAIN (Name: "drivers_parport_parport_gsc.h.diff=
")
>=20
> Thanks Joel!  The patches finally made it possible to compile 2.6.10-pa1 =
using:
>=20
> binutils-hppa-linux       2.15-1
> gcc-hppa-linux            3.4.1-1
>=20
> Unless the parisc-linux team sees anything wrong with these patches, woul=
d it be
> possible to merge them into the current CVS tree?=20

However, support for the front-panel LEDs and switches is BROKEN in 2.6.10-=
pa1:
when I press the power switch, it kills the AC power instead of sending a s=
ignal
to the kernel to shut itself down.  OUCH!  The power/status LED is also off=
=2E

--=20
Martin-=C9ric Racine, ICT Consultant
http://www.iki.fi/q-funk/



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Newsgroups: gmane.linux.ports.parisc
Subject: Re: front-panel LED and switch support broken (was: 2.6.10-pa1
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On Thu, 30 Dec 2004, Martin-=C9ric Racine wrote:

> On Thu, 30 Dec 2004, Martin-=C9ric Racine wrote:
> However, support for the front-panel LEDs and switches is BROKEN in 2.6.1=
0-pa1:
> when I press the power switch, it kills the AC power instead of sending a=
 signal
> to the kernel to shut itself down.  OUCH!  The power/status LED is also o=
ff.

This is still broken in 2.6.10-pa2 as well.

--=20
Martin-=C9ric Racine, ICT Consultant
http://www.iki.fi/q-funk/



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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] Remove irq_region_ops
Date: Thu, 30 Dec 2004 18:45:20 +0000
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Xref: news.gmane.org gmane.linux.ports.parisc:25061


This patch switches us to use the generic hw_interrupt_type instead
of irq_region_ops.  We don't use much of it yet; in particular these
ops are still per-region instead of per-interrupt, but this is only the
first step.

Using hw_interrupt_type requires us to pass only one parameter to the
enable and disable ops instead of the current two.  So much of the
code in the disable_irq() and enable_irq() functions needed to move
to the callees that needed the additional argument.

Also, we can only use one name for each interrupt type, so we can't say
"This is a Lasi interrupt, that is a Wax interrupt".  They're all "GSC
ASIC" now.  I also renamed some of the 'busdev' stuff.  All devices are
on a bus; it's not an informative name.

I deleted some checking code that is now obvious couldn't've been tripped.

Some of the includes changed a bit to reflect i386 more closely, and
__syscall_count and __ksoftirqd_task are gone from irq_cpustat_t on most
other arches.

Tested on a 725, mostly with Lasi-based devices.  It'd be nice if someone
tested this on an IOSAPIC-based machine (eg a500/b2000/n4000/j7000/c8000)
I'd like to commit this soon and move onto step 2.

Index: arch/parisc/kernel/irq.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/kernel/irq.c,v
retrieving revision 1.18
diff -u -p -r1.18 irq.c
--- arch/parisc/kernel/irq.c	6 Dec 2004 14:35:23 -0000	1.18
+++ arch/parisc/kernel/irq.c	30 Dec 2004 18:18:38 -0000
@@ -68,7 +68,7 @@ static void cpu_set_eiem(void *info)
 	set_eiem((unsigned long) info);
 }
 
-static inline void disable_cpu_irq(void *unused, int irq)
+static inline void disable_cpu_irq(unsigned int irq)
 {
 	unsigned long eirr_bit = EIEM_MASK(irq);
 
@@ -76,7 +76,7 @@ static inline void disable_cpu_irq(void 
         on_each_cpu(cpu_set_eiem, (void *) cpu_eiem, 1, 1);
 }
 
-static void enable_cpu_irq(void *unused, int irq)
+static void enable_cpu_irq(unsigned int irq)
 {
 	unsigned long eirr_bit = EIEM_MASK(irq);
 
@@ -105,16 +105,17 @@ struct irqaction cpu_irq_actions[IRQ_PER
 #endif
 };
 
+static struct hw_interrupt_type cpu_interrupt_type = {
+	.typename	= "CPU",
+	.disable	= disable_cpu_irq,
+	.enable		= enable_cpu_irq,
+};
 
 struct irq_region cpu0_irq_region = {
-	.ops	= {
-			.disable_irq	= disable_cpu_irq,
-			.enable_irq	= enable_cpu_irq,
-	},
+	.type	= &cpu_interrupt_type,
 	.data	= {
-			.dev		= &cpu_data[0],
-			.name		= "PARISC-CPU",
-			.irqbase 	= IRQ_FROM_REGION(CPU_IRQ_REGION),
+		.dev		= &cpu_data[0],
+		.irqbase 	= IRQ_FROM_REGION(CPU_IRQ_REGION),
 	},
 	.action	= cpu_irq_actions,
 };
@@ -139,8 +140,8 @@ void disable_irq(int irq)
 				IRQ_REGION(irq), IRQ_OFFSET(irq), cpu_eiem));
 	irq = irq_canonicalize(irq);
 	region = irq_region[IRQ_REGION(irq)];
-	if (region->ops.disable_irq)
-		region->ops.disable_irq(region->data.dev, IRQ_OFFSET(irq));
+	if (region->type->disable)
+		region->type->disable(irq);
 	else
 		BUG();
 }
@@ -155,8 +156,8 @@ void enable_irq(int irq)
 	irq = irq_canonicalize(irq);
 	region = irq_region[IRQ_REGION(irq)];
 
-	if (region->ops.enable_irq)
-		region->ops.enable_irq(region->data.dev, IRQ_OFFSET(irq));
+	if (region->type->enable)
+		region->type->enable(irq);
 	else
 		BUG();
 }
@@ -205,8 +206,7 @@ int show_interrupts(struct seq_file *p, 
 #endif
 		  seq_printf(p, "%10u ", kstat_cpu(j).irqs[irq_no]);
 
-		seq_printf(p, " %14s",
-			    region->data.name ? region->data.name : "N/A");
+		seq_printf(p, " %14s", region->type->typename);
 #ifndef PARISC_IRQ_CR16_COUNTS
 		seq_printf(p, "  %s", action->name);
 
@@ -471,11 +471,10 @@ static inline int find_free_region(void)
 }
 
 
-/*****
+/**
  * alloc_irq_region - allocate/init a new IRQ region
  * @count: number of IRQs in this region.
- * @ops: function table with request/release/mask/unmask/etc.. entries.
- * @name: name of region owner for /proc/interrupts output.
+ * @type: function table with enable/disable/etc.. entries.
  * @dev: private data to associate with the new IRQ region.
  *
  * Every IRQ must become a MMIO write to the CPU's EIRR in
@@ -485,8 +484,8 @@ static inline int find_free_region(void)
  * IRQ regions virtualize IRQs (eg EISA or PCI host bus controllers)
  * for line based devices.
  */
-struct irq_region *alloc_irq_region( int count, struct irq_region_ops *ops,
-					const char *name, void *dev)
+struct irq_region *alloc_irq_region(int count, struct hw_interrupt_type *type,
+					void *dev)
 {
 	struct irq_region *region;
 	int index;
@@ -506,10 +505,9 @@ struct irq_region *alloc_irq_region( int
 	    count = IRQ_PER_REGION;
 	}
 
-	/* ditto for enable/disable */
-	if( (ops->disable_irq || ops->enable_irq) &&
-		!(ops->disable_irq && ops->enable_irq) )
-			return NULL;
+	if ((type->disable && !type->enable) ||
+	    (!type->disable && type->enable))
+		return NULL;
 
 	region = kmalloc(sizeof(*region), GFP_ATOMIC);
 	if (!region)
@@ -523,9 +521,8 @@ struct irq_region *alloc_irq_region( int
 	}
 	memset(region->action, 0, count * sizeof(*region->action));
 
-	region->ops = *ops;
+	region->type = type;
 	region->data.irqbase = IRQ_FROM_REGION(index);
-	region->data.name = name;
 	region->data.dev = dev;
 
 	irq_region[index] = region;
@@ -707,7 +704,7 @@ unsigned long probe_irq_on(void)
 		action = region->action + i;
 		if (!action->handler) {
 			region->data.status[i] |= IRQ_AUTODETECT | IRQ_WAITING;
-			region->ops.enable_irq(region->data.dev,i);
+			region->type->enable(i);
 		}
 		spin_unlock_irq(&irq_lock);
 	}
@@ -732,7 +729,7 @@ unsigned long probe_irq_on(void)
 			/* It triggered already - consider it spurious. */
 			if (!(status & IRQ_WAITING)) {
 				region->data.status[i] = status & ~IRQ_AUTODETECT;
-				region->ops.disable_irq(region->data.dev,i);
+				region->type->disable(i);
 			} else
 				if (i < BITS_PER_LONG)
 					val |= (1 << i);
@@ -792,7 +789,7 @@ int probe_irq_off(unsigned long val)
 					irq_found = i;
 				nr_irqs++;
 			}
-			region->ops.disable_irq(region->data.dev,i);
+			region->type->disable(i);
 			region->data.status[i] = status & ~IRQ_AUTODETECT;
 		}
 		spin_unlock_irq(&irq_lock);
Index: drivers/parisc/dino.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/dino.c,v
retrieving revision 1.21
diff -u -p -r1.21 dino.c
--- drivers/parisc/dino.c	6 Dec 2004 14:35:23 -0000	1.21
+++ drivers/parisc/dino.c	30 Dec 2004 18:18:40 -0000
@@ -298,30 +298,24 @@ struct pci_port_ops dino_port_ops = {
 	.outl	= dino_out32
 };
 
-static void
-dino_disable_irq(void *irq_dev, int irq)
+static void dino_disable_irq(unsigned int irq_handle)
 {
-	struct dino_device *dino_dev = DINO_DEV(irq_dev);
+	struct irq_region *region = irq_region[IRQ_REGION(irq_handle)];
+	struct dino_device *dino_dev = region->data.dev;
+	int irq = IRQ_OFFSET(irq_handle);
 
 	DBG(KERN_WARNING "%s(0x%p, %d)\n", __FUNCTION__, irq_dev, irq);
 
-	if (NULL == irq_dev || irq > DINO_IRQS || irq < 0) {
-		printk(KERN_WARNING "%s(0x%lx, %d) - not a dino irq?\n",
-			__FUNCTION__, (long) irq_dev, irq);
-		BUG();
-	} else {
-		/*
-		** Clear the matching bit in the IMR register
-		*/
-		dino_dev->imr &= ~(DINO_MASK_IRQ(irq));
-		gsc_writel(dino_dev->imr, dino_dev->hba.base_addr+DINO_IMR);
-	}
+	/* Clear the matching bit in the IMR register */
+	dino_dev->imr &= ~(DINO_MASK_IRQ(irq));
+	gsc_writel(dino_dev->imr, dino_dev->hba.base_addr+DINO_IMR);
 }
 
-static void
-dino_enable_irq(void *irq_dev, int irq)
+static void dino_enable_irq(unsigned int irq_handle)
 {
-	struct dino_device *dino_dev = DINO_DEV(irq_dev);
+	struct irq_region *region = irq_region[IRQ_REGION(irq_handle)];
+	struct dino_device *dino_dev = region->data.dev;
+	int irq = IRQ_OFFSET(irq_handle);
 	u32 tmp;
 
 	DBG(KERN_WARNING "%s(0x%p, %d)\n", __FUNCTION__, irq_dev, irq);
@@ -334,13 +328,6 @@ dino_enable_irq(void *irq_dev, int irq)
 	*/
 	gsc_readl(dino_dev->hba.base_addr+DINO_IPR);
 
-	if (irq > DINO_IRQS) {
-		printk(KERN_WARNING "%s(): %d not a dino irq?\n",
-				__FUNCTION__, irq);
-		BUG();
-		return;
-	}
-
 	/* set the matching bit in the IMR register */
 	dino_dev->imr |= DINO_MASK_IRQ(irq);          /* used in dino_isr() */
 	gsc_writel( dino_dev->imr, dino_dev->hba.base_addr+DINO_IMR);
@@ -363,9 +350,10 @@ dino_enable_irq(void *irq_dev, int irq)
 }
 
 
-static struct irq_region_ops dino_irq_ops = {
-	.disable_irq	= dino_disable_irq,
-	.enable_irq	= dino_enable_irq, 
+static struct hw_interrupt_type dino_interrupt_type = {
+	.typename	= "Dino",
+	.disable	= dino_disable_irq,
+	.enable		= dino_enable_irq, 
 };
 
 
@@ -842,8 +830,8 @@ static int __init dino_common_init(struc
 	** Tell generic interrupt support we have 11 bits which need
 	** be checked in the interrupt handler.
 	*/
-	dino_dev->dino_region = alloc_irq_region(DINO_IRQS, &dino_irq_ops,
-						name, dino_dev);
+	dino_dev->dino_region = alloc_irq_region(DINO_IRQS,
+						&dino_interrupt_type, dino_dev);
 
 	if (NULL == dino_dev->dino_region) {
 		printk(KERN_WARNING "%s: alloc_irq_region() failed\n", name);
Index: drivers/parisc/eisa.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/eisa.c,v
retrieving revision 1.8
diff -u -p -r1.8 eisa.c
--- drivers/parisc/eisa.c	6 Dec 2004 14:35:23 -0000	1.8
+++ drivers/parisc/eisa.c	30 Dec 2004 18:18:40 -0000
@@ -29,7 +29,7 @@
 
 #include <linux/init.h>
 #include <linux/ioport.h>
-#include <linux/irq.h>
+#include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/pci.h>
@@ -142,7 +142,7 @@ static unsigned int eisa_irq_level; /* d
 
 
 /* called by free irq */
-static void eisa_disable_irq(void *irq_dev, int irq)
+static void eisa_disable_irq(unsigned int irq)
 {
 	unsigned long flags;
 
@@ -162,7 +162,7 @@ static void eisa_disable_irq(void *irq_d
 }
 
 /* called by request irq */
-static void eisa_enable_irq(void *irq_dev, int irq)
+static void eisa_enable_irq(unsigned int irq)
 {
 	unsigned long flags;
 	EISA_DBG("enable irq %d\n", irq);
@@ -182,13 +182,18 @@ static void eisa_enable_irq(void *irq_de
 
 static struct irqaction action[IRQ_PER_REGION];
 
+static struct hw_interrupt_type eisa_interrupt_type = {
+	.typename =	"EISA",
+	.disable =	eisa_disable_irq,
+	.enable =	eisa_enable_irq,
+};
+
 /* EISA needs to be fixed at IRQ region #0 (EISA_IRQ_REGION) */
 static struct irq_region eisa_irq_region = {
-	.ops	= {
-		.disable_irq = eisa_disable_irq,
-		.enable_irq = eisa_enable_irq
+	.type	= &eisa_interrupt_type,
+	.data	= {
+		.irqbase = 0
 	},
-	.data	= { .name = "EISA", .irqbase = 0 },
 	.action	= action,
 };
 
Index: drivers/parisc/gsc.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/gsc.c,v
retrieving revision 1.4
diff -u -p -r1.4 gsc.c
--- drivers/parisc/gsc.c	6 Dec 2004 14:35:23 -0000	1.4
+++ drivers/parisc/gsc.c	30 Dec 2004 18:18:40 -0000
@@ -109,30 +109,33 @@ irqreturn_t busdev_barked(int busdev_irq
 	return IRQ_HANDLED;
 }
 
-static void
-busdev_disable_irq(void *irq_dev, int irq)
+static void gsc_asic_disable_irq(unsigned int irq_handle)
 {
+	struct irq_region *region = irq_region[IRQ_REGION(irq_handle)];
+	struct busdevice *irq_dev = region->data.dev;
+	int irq = IRQ_OFFSET(irq_handle);
 	/* Disable the IRQ line by clearing the bit in the IMR */
-	u32 imr = gsc_readl(BUSDEV_DEV(irq_dev)->hpa+OFFSET_IMR);
-	imr &= ~(GSC_MASK_IRQ(irq));
+	u32 imr = gsc_readl(irq_dev->hpa + OFFSET_IMR);
+	imr &= ~GSC_MASK_IRQ(irq);
 
 	DEBPRINTK( KERN_WARNING "%s(%p, %d) %s: IMR 0x%x\n", 
 		    __FUNCTION__, irq_dev, irq, BUSDEV_DEV(irq_dev)->name, imr);
 
-	gsc_writel(imr, BUSDEV_DEV(irq_dev)->hpa+OFFSET_IMR);
+	gsc_writel(imr, irq_dev->hpa + OFFSET_IMR);
 }
 
-
-static void
-busdev_enable_irq(void *irq_dev, int irq)
+static void gsc_asic_enable_irq(unsigned int irq_handle)
 {
+	struct irq_region *region = irq_region[IRQ_REGION(irq_handle)];
+	struct busdevice *irq_dev = region->data.dev;
+	int irq = IRQ_OFFSET(irq_handle);
 	/* Enable the IRQ line by setting the bit in the IMR */
-	unsigned long addr = BUSDEV_DEV(irq_dev)->hpa + OFFSET_IMR;
+	unsigned long addr = irq_dev->hpa + OFFSET_IMR;
 	u32 imr = gsc_readl(addr);
 	imr |= GSC_MASK_IRQ(irq);
 
 	DEBPRINTK (KERN_WARNING "%s(%p, %d) %s: IMR 0x%x\n", 
-		    __FUNCTION__, irq_dev, irq, BUSDEV_DEV(irq_dev)->name, imr);
+		    __FUNCTION__, irq_dev, irq, irq_dev->name, imr);
 
 	gsc_writel(imr, addr);
 //	gsc_writel(~0L, addr);
@@ -142,9 +145,10 @@ busdev_enable_irq(void *irq_dev, int irq
 */
 }
 
-struct irq_region_ops busdev_irq_ops = {
-	.disable_irq =	busdev_disable_irq,
-	.enable_irq =	busdev_enable_irq,
+struct hw_interrupt_type gsc_asic_interrupt_type = {
+	.typename =	"GSC-ASIC",
+	.disable =	gsc_asic_disable_irq,
+	.enable =	gsc_asic_enable_irq,
 };
 
 
@@ -155,8 +159,8 @@ int gsc_common_irqsetup(struct parisc_de
 	busdev->gsc = parent;
 
 	/* the IRQs we simulate */
-	busdev->busdev_region = alloc_irq_region(32, &busdev_irq_ops,
-						 busdev->name, busdev);
+	busdev->busdev_region = alloc_irq_region(32, &gsc_asic_interrupt_type,
+						 busdev);
 	if (!busdev->busdev_region)
 		return -ENOMEM;
 
Index: drivers/parisc/iosapic.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/iosapic.c,v
retrieving revision 1.12
diff -u -p -r1.12 iosapic.c
--- drivers/parisc/iosapic.c	6 Dec 2004 14:35:23 -0000	1.12
+++ drivers/parisc/iosapic.c	30 Dec 2004 18:18:41 -0000
@@ -91,7 +91,7 @@
 ** One IRQ number represents both an IRQ line and a driver ISR.
 ** The I/O sapic driver can't manage shared IRQ lines because
 ** additional data besides the IRQ number must be passed via
-** irq_region_ops. do_irq() and request_irq() must manage
+** hw_interrupt_type. do_irq() and request_irq() must manage
 ** a sharing a bit in the mask.
 **
 ** iosapic_interrupt() replaces do_irq_mask() and calls do_irq().
@@ -768,15 +768,15 @@ iosapic_set_irt_data( struct vector_info
 }
 
 
-static void
-iosapic_disable_irq(void *irq_dev, int irq)
+static void iosapic_disable_irq(unsigned int irq_handle)
 {
 	unsigned long flags;
-	struct vector_info *vi = &(((struct vector_info *) irq_dev)[irq]);
+	struct irq_region *region = irq_region[IRQ_REGION(irq_handle)];
+	int irq = IRQ_OFFSET(irq_handle);
+	struct vector_info *isi_vector = region->data.dev;
+	struct vector_info *vi = isi_vector + irq;
 	u32 d0, d1;
 
-	BUG_ON(!vi);
-
 	spin_lock_irqsave(&iosapic_lock, flags);
 
 #ifdef REVISIT_DESIGN_ISSUE
@@ -812,10 +812,12 @@ Need more info on how Linux supports sha
 }
 
 
-static void
-iosapic_enable_irq(void *dev, int irq)
+static void iosapic_enable_irq(unsigned int irq_handle)
 {
-	struct vector_info *vi = &(((struct vector_info *) dev)[irq]);
+	struct irq_region *region = irq_region[IRQ_REGION(irq_handle)];
+	int irq = IRQ_OFFSET(irq_handle);
+	struct vector_info *isi_vector = region->data.dev;
+	struct vector_info *vi = isi_vector + irq;
 	u32 d0, d1;
 
 	/* data is initialized by fixup_irq */
@@ -856,9 +858,10 @@ printk("\n");
 }
 
 
-static struct irq_region_ops iosapic_irq_ops = {
-	.disable_irq =	iosapic_disable_irq,
-	.enable_irq =	iosapic_enable_irq,
+static struct hw_interrupt_type iosapic_interrupt_type = {
+	.typename =	"IO-SAPIC-level",
+	.disable =	iosapic_disable_irq,
+	.enable =	iosapic_enable_irq,
 };
 
 
@@ -946,8 +949,7 @@ iosapic_register(unsigned long hpa)
 	}
 
 	isi->isi_region = alloc_irq_region(isi->isi_num_vectors,
-				&iosapic_irq_ops, isi->isi_name,
-				(void *) isi->isi_vector);
+				&iosapic_interrupt_type, isi->isi_vector);
 
 	WARN_ON(isi->isi_region == NULL);
 	return ((void *) isi);
Index: drivers/parisc/superio.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/superio.c,v
retrieving revision 1.14
diff -u -p -r1.14 superio.c
--- drivers/parisc/superio.c	6 Dec 2004 14:35:23 -0000	1.14
+++ drivers/parisc/superio.c	30 Dec 2004 18:18:41 -0000
@@ -280,9 +280,9 @@ superio_init(struct superio_device *sio)
 }
 
 
-static void
-superio_disable_irq(void *dev, int local_irq)
+static void superio_disable_irq(unsigned int irq_handle)
 {
+	int local_irq = IRQ_OFFSET(irq_handle);
 	u8 r8;
 
 	if ((local_irq < 1) || (local_irq == 2) || (local_irq > 7)) {
@@ -298,9 +298,9 @@ superio_disable_irq(void *dev, int local
 	outb (r8,IC_PIC1+1);
 }
 
-static void
-superio_enable_irq(void *dev, int local_irq)
+static void superio_enable_irq(unsigned int irq_handle)
 {
+	int local_irq = IRQ_OFFSET(irq_handle);
 	u8 r8;
 
 	if ((local_irq < 1) || (local_irq == 2) || (local_irq > 7)) {
@@ -316,9 +316,10 @@ superio_enable_irq(void *dev, int local_
 }
 
 
-static struct irq_region_ops superio_irq_ops = {
-	.disable_irq =	superio_disable_irq,
-	.enable_irq =	superio_enable_irq,
+static struct hw_interrupt_type superio_interrupt_type = {
+	.typename =	"SuperIO",
+	.disable =	superio_disable_irq,
+	.enable =	superio_enable_irq,
 };
 
 #ifdef DEBUG_SUPERIO_INIT
@@ -351,8 +352,8 @@ int superio_fixup_irq(struct pci_dev *pc
 	if (!sio_dev.irq_region) {
 		/* Allocate an irq region for SuperIO devices */
 		sio_dev.irq_region = alloc_irq_region(SUPERIO_NIRQS,
-						&superio_irq_ops,
-						"SuperIO", (void *) &sio_dev);
+						&superio_interrupt_type,
+						&sio_dev);
 		if (!sio_dev.irq_region) {
 			printk(KERN_WARNING "SuperIO: alloc_irq_region failed\n");
 			return -1;
Index: include/asm-parisc/hardirq.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/hardirq.h,v
retrieving revision 1.3
diff -u -p -r1.3 hardirq.h
--- include/asm-parisc/hardirq.h	29 Nov 2004 19:56:44 -0000	1.3
+++ include/asm-parisc/hardirq.h	30 Dec 2004 18:18:43 -0000
@@ -18,11 +18,10 @@
 #include <linux/config.h>
 #include <linux/threads.h>
 #include <linux/cache.h>
+#include <linux/irq.h>
 
 typedef struct {
 	unsigned long __softirq_pending; /* set_bit is used on this */
-	unsigned int __syscall_count;
-	struct task_struct * __ksoftirqd_task;
 	unsigned long idle_timestamp;
 } ____cacheline_aligned irq_cpustat_t;
 
@@ -31,20 +30,19 @@ typedef struct {
 #define HARDIRQ_BITS	16
 
 /*
- * The hardirq mask has to be large enough to have space for potentially all IRQ sources
- * in the system nesting on a single CPU:
+ * The hardirq mask has to be large enough to have space for potentially all
+ * IRQ sources in the system nesting on a single CPU:
  */
 #if (1 << HARDIRQ_BITS) < NR_IRQS
 # error HARDIRQ_BITS is too low!
 #endif
 
-#define irq_enter()		(preempt_count() += HARDIRQ_OFFSET)
-#define irq_exit()								\
-do {										\
-		preempt_count() -= IRQ_EXIT_OFFSET;				\
-		if (!in_interrupt() && softirq_pending(smp_processor_id()))	\
-			do_softirq();						\
-		preempt_enable_no_resched();					\
+#define irq_enter()	(preempt_count() += HARDIRQ_OFFSET)
+#define irq_exit()	do {						     \
+		preempt_count() -= IRQ_EXIT_OFFSET;			     \
+		if (!in_interrupt() && softirq_pending(smp_processor_id()))  \
+			do_softirq();					     \
+		preempt_enable_no_resched();				     \
 } while (0)
 
 #endif /* _PARISC_HARDIRQ_H */
Index: include/asm-parisc/irq.h
===================================================================
RCS file: /var/cvs/linux-2.6/include/asm-parisc/irq.h,v
retrieving revision 1.5
diff -u -p -r1.5 irq.h
--- include/asm-parisc/irq.h	6 Dec 2004 14:35:23 -0000	1.5
+++ include/asm-parisc/irq.h	30 Dec 2004 18:18:43 -0000
@@ -11,14 +11,13 @@
 #ifndef _ASM_PARISC_IRQ_H
 #define _ASM_PARISC_IRQ_H
 
+#include <linux/string.h>
+#include <linux/config.h>
+
 #include <asm/ptrace.h>
 #include <asm/types.h>
 #include <asm/errno.h>
 
-#include <linux/string.h>
-#include <linux/interrupt.h>
-#include <linux/config.h>
-
 #define NO_IRQ	(-1)
 
 #define CPU_IRQ_REGION		1
@@ -45,22 +44,15 @@
 #define EISA_IRQ_REGION		0 /* region 0 needs to be reserved for EISA */
 #define EISA_MAX_IRQS		16 /* max. (E)ISA irq line */
 
-struct irq_region_ops {
-	void (*disable_irq)(void *dev, int irq);
-	void (* enable_irq)(void *dev, int irq);
-};
-
 struct irq_region_data {
 	void *dev;
-	const char *name;
 	int irqbase;
 	unsigned int status[IRQ_PER_REGION]; /* IRQ status */
 };
 
 struct irq_region {
-	struct irq_region_ops ops;
+	struct hw_interrupt_type *type;
 	struct irq_region_data data;

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Xref: news.gmane.org gmane.linux.ports.parisc:25062

On Wed, 2004-12-29 at 18:16 -0500, Mike Frysinger wrote:
> added verbose scsi debugging and the patch

OK, this definitely shows that the WD drive is lying about having a
writable echo buffer.

Could you reverse all the previous patches in scsi_transport_spi.c and
apply the attached.  I hope it will detect the write buffer problem and
fall back to doing DV configuration using the read only tests, so your
drive should configure at the maximum rate for the 875.

Thanks,

James

===== drivers/scsi/scsi_transport_spi.c 1.21 vs edited =====
--- 1.21/drivers/scsi/scsi_transport_spi.c	2004-12-06 14:51:40 -06:00
+++ edited/drivers/scsi/scsi_transport_spi.c	2004-12-30 10:07:02 -06:00
@@ -31,6 +31,7 @@
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_request.h>
+#include <scsi/scsi_eh.h>
 #include <scsi/scsi_transport.h>
 #include <scsi/scsi_transport_spi.h>
 
@@ -378,10 +379,16 @@
 #define DV_RETRIES	3	/* should only need at most 
 				 * two cc/ua clears */
 
+enum spi_compare_returns {
+	SPI_COMPARE_SUCCESS,
+	SPI_COMPARE_FAILURE,
+	SPI_COMPARE_SKIP_TEST,
+};
+
 
 /* This is for read/write Domain Validation:  If the device supports
  * an echo buffer, we do read/write tests to it */
-static int
+static enum spi_compare_returns
 spi_dv_device_echo_buffer(struct scsi_request *sreq, u8 *buffer,
 			  u8 *ptr, const int retries)
 {
@@ -438,9 +445,23 @@
 		scsi_wait_req(sreq, spi_write_buffer, buffer, len,
 			      DV_TIMEOUT, DV_RETRIES);
 		if(sreq->sr_result || !scsi_device_online(sdev)) {
+			struct scsi_sense_hdr sshdr;
+
 			scsi_device_set_state(sdev, SDEV_QUIESCE);
+			if (scsi_request_normalize_sense(sreq, &sshdr)
+			    && sshdr.sense_key == ILLEGAL_REQUEST
+			    /* INVALID FIELD IN CDB */
+			    && sshdr.asc == 0x24 && sshdr.ascq == 0x00)
+				/* This would mean that the drive lied
+				 * to us about supporting an echo
+				 * buffer (unfortunately some Western
+				 * Digital drives do precisely this)
+				 */
+				return SPI_COMPARE_SKIP_TEST;
+
+
 			SPI_PRINTK(sdev->sdev_target, KERN_ERR, "Write Buffer failure %x\n", sreq->sr_result);
-			return 0;
+			return SPI_COMPARE_FAILURE;
 		}
 
 		memset(ptr, 0, len);
@@ -453,12 +474,12 @@
 		if (memcmp(buffer, ptr, len) != 0)
 			return 0;
 	}
-	return 1;
+	return SPI_COMPARE_SUCCESS;
 }
 
 /* This is for the simplest form of Domain Validation: a read test
  * on the inquiry data from the device */
-static int
+static enum spi_compare_returns
 spi_dv_device_compare_inquiry(struct scsi_request *sreq, u8 *buffer,
 			      u8 *ptr, const int retries)
 {
@@ -493,24 +514,28 @@
 
 		if (memcmp(buffer, ptr, len) != 0)
 			/* failure */
-			return 0;
+			return SPI_COMPARE_FAILURE;
 	}
-	return 1;
+	return SPI_COMPARE_SUCCESS;
 }
 
-static int
+static enum spi_compare_returns
 spi_dv_retrain(struct scsi_request *sreq, u8 *buffer, u8 *ptr,
-	       int (*compare_fn)(struct scsi_request *, u8 *, u8 *, int))
+	       enum spi_compare_returns 
+	       (*compare_fn)(struct scsi_request *, u8 *, u8 *, int))
 {
 	struct spi_internal *i = to_spi_internal(sreq->sr_host->transportt);
 	struct scsi_device *sdev = sreq->sr_device;
 	int period = 0, prevperiod = 0; 
+	enum spi_compare_returns retval;
 
 
 	for (;;) {
 		int newperiod;
-		if (compare_fn(sreq, buffer, ptr, DV_LOOPS))
-			/* Successful DV */
+		retval = compare_fn(sreq, buffer, ptr, DV_LOOPS);
+
+		if (retval == SPI_COMPARE_SUCCESS
+		    || retval == SPI_COMPARE_SKIP_TEST)
 			break;
 
 		/* OK, retrain, fallback */
@@ -527,13 +552,13 @@
 			/* Total failure; set to async and return */
 			SPI_PRINTK(sdev->sdev_target, KERN_ERR, "Domain Validation Failure, dropping back to Asynchronous\n");
 			DV_SET(offset, 0);
-			return 0;
+			return SPI_COMPARE_FAILURE;
 		}
 		SPI_PRINTK(sdev->sdev_target, KERN_ERR, "Domain Validation detected failure, dropping back\n");
 		DV_SET(period, period);
 		prevperiod = period;
 	}
-	return 1;
+	return retval;
 }
 
 static int
@@ -599,7 +624,8 @@
 	DV_SET(offset, 0);
 	DV_SET(width, 0);
 	
-	if (!spi_dv_device_compare_inquiry(sreq, buffer, buffer, DV_LOOPS)) {
+	if (spi_dv_device_compare_inquiry(sreq, buffer, buffer, DV_LOOPS)
+	    != SPI_COMPARE_SUCCESS) {
 		SPI_PRINTK(sdev->sdev_target, KERN_ERR, "Domain Validation Initial Inquiry Failed\n");
 		/* FIXME: should probably offline the device here? */
 		return;
@@ -609,9 +635,10 @@
 	if (i->f->set_width && sdev->wdtr) {
 		i->f->set_width(sdev->sdev_target, 1);
 
-		if (!spi_dv_device_compare_inquiry(sreq, buffer,
+		if (spi_dv_device_compare_inquiry(sreq, buffer,
 						   buffer + len,
-						   DV_LOOPS)) {
+						   DV_LOOPS)
+		    != SPI_COMPARE_SUCCESS) {
 			SPI_PRINTK(sdev->sdev_target, KERN_ERR, "Wide Transfers Fail\n");
 			i->f->set_width(sdev->sdev_target, 0);
 		}
@@ -624,31 +651,39 @@
 	if(!sdev->ppr && !sdev->sdtr)
 		return;
 
-	/* now set up to the maximum */
-	DV_SET(offset, 255);
-	DV_SET(period, 1);
-	if (!spi_dv_retrain(sreq, buffer, buffer + len,
-			    spi_dv_device_compare_inquiry))
-		return;
-
-	/* OK, now we have our initial speed set by the read only inquiry
-	 * test, now try an echo buffer test (if the device allows it) */
+	/* see if the device has an echo buffer.  If it does we can
+	 * do the SPI pattern write tests */
 
 	len = 0;
 	if (sdev->ppr)
 		len = spi_dv_device_get_echo_buffer(sreq, buffer);
 
+ retry:
+
+	/* now set up to the maximum */
+	DV_SET(offset, 255);
+	DV_SET(period, 1);
+
 	if (len == 0) {
 		SPI_PRINTK(sdev->sdev_target, KERN_INFO, "Domain Validation skipping write tests\n");
+		spi_dv_retrain(sreq, buffer, buffer + len,
+			       spi_dv_device_compare_inquiry);
 		return;
 	}
+
 	if (len > SPI_MAX_ECHO_BUFFER_SIZE) {
 		SPI_PRINTK(sdev->sdev_target, KERN_WARNING, "Echo buffer size %d is too big, trimming to %d\n", len, SPI_MAX_ECHO_BUFFER_SIZE);
 		len = SPI_MAX_ECHO_BUFFER_SIZE;
 	}
 
-	spi_dv_retrain(sreq, buffer, buffer + len,
-		       spi_dv_device_echo_buffer);
+	if (spi_dv_retrain(sreq, buffer, buffer + len,
+			   spi_dv_device_echo_buffer)
+	    == SPI_COMPARE_SKIP_TEST) {
+		/* OK, the stupid drive can't do a write echo buffer
+		 * test after all, fall back to the read tests */
+		len = 0;
+		goto retry;
+	}
 }
 
 


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Matthew Wilcox wrote:
[...]
> 
> Tested on a 725, mostly with Lasi-based devices.  It'd be nice if someone
> tested this on an IOSAPIC-based machine (eg a500/b2000/n4000/j7000/c8000)

build and boot fine on n4k (64bit 2way system) (on going to rebuild kernel ;-)
same results on b2k 64bit kernel (32bit on going to build)

> I'd like to commit this soon and move onto step 2.
> 
Just would like to test on b180 (on going to build too) and c110 ;-)

hth,
	Joel
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On Thursday 30 December 2004 12:04 pm, James Bottomley wrote:
> Could you reverse all the previous patches in scsi_transport_spi.c and
> apply the attached.  I hope it will detect the write buffer problem and
> fall back to doing DV configuration using the read only tests, so your
> drive should configure at the maximum rate for the 875.

done deal ... i noticed when patching there were a few returns in the updated 
functions that still returned '0' or '1' instead the new enum's ...

new dmesg attached
-mike

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	name="2.6.10-pa1-scsi-debug-patch7"
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sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 99
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18m
elevator: using anticipatory as default io scheduler
  Vendor: IBM       Model: DDRS-34560WS      Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:6:0: tagged command queuing enabled, command queue depth 16.
 target0:0:6: Beginning Domain Validation
sym0:6:wide msgout: 1-2-3-1.
sym0:6:wide msgin: 1-2-3-1.
sym0:6:wdtr: wide=1 chg=0.
sym0:6:sync msgout: 1-3-1-c-0.
sym0:6:sync msgin: 1-3-1-c-0.
sym0:6:sdtr: ofs=0 per=12 div=0 fak=0 chg=0.
sym0:6: wide asynchronous.
 target0:0:6: Domain Validation skipping write tests
sym0:6:sync msgout: 1-3-1-c-10.
sym0:6:sync msgin: 1-3-1-c-f.
sym0:6:sdtr: ofs=15 per=12 div=0 fak=0 chg=0.
sym0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 15)
 target0:0:6: Ending Domain Validation
sym0:9:ppr msgin: 1-6-4-c-0-3f-1-2.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
sym0:9:ppr msgout: 1-6-4-c-0-10-1-0.
  Vendor: WDIGTL    Model: WDE9150 ULTRA3    Rev: 1.30
  Type:   Direct-Access                      ANSI SCSI revision: 03
sym0:9:0: tagged command queuing enabled, command queue depth 16.
 target0:0:9: Beginning Domain Validation
sym0:9:wide msgout: 1-2-3-0.
sym0:9:wide msgin: 1-2-3-0.
sym0:9:wdtr: wide=0 chg=0.
sym0:9:sync msgin: 1-3-1-c-1f.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=1.
sym0:9: FAST-20 SCSI 20.0 MB/s ST (50.0 ns, offset 16)
sym0:9:sync msgout: 1-3-1-c-10.
sym0:9:wide msgout: 1-2-3-1.
sym0:9:wide msgin: 1-2-3-1.
sym0:9:wdtr: wide=1 chg=0.
sym0:9:sync msgout: 1-3-1-c-10.
sym0:9:sync msgin: 1-3-1-c-10.
sym0:9:sdtr: ofs=16 per=12 div=0 fak=0 chg=0.
sym0:9: FAST-20 WIDE SCSI 40.0 MB/s ST (50.0 ns, offset 16)
 target0:0:9: Domain Validation skipping write tests
 target0:0:9: Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
  Vendor: TOSHIBA   Model: CD-ROM XM-5301TA  Rev: 1895
  Type:   CD-ROM                             ANSI SCSI revision: 02
 target1:0:2: Beginning Domain Validation
scsi1: (2:0) Asynchronous
 target1:0:2: Domain Validation skipping write tests
scsi1: (2:0) Synchronous at offset 8, period 236ns
 target1:0:2: Ending Domain Validation
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 8388314 512-byte hdwr sectors (4295 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sdb: 17873040 512-byte hdwr sectors (9151 MB)
SCSI device sdb: drive cache: write back
SCSI device sdb: 17873040 512-byte hdwr sectors (9151 MB)
SCSI device sdb: drive cache: write back
 sdb: unknown partition table
Attached scsi disk sdb at scsi0, channel 0, id 9, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 6, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 9, lun 0,  type 0
Attached scsi generic sg2 at scsi1, channel 0, id 2, lun 0,  type 5

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Final update

Joel Soete wrote:
> 
> 
> Matthew Wilcox wrote:
> [...]
> 
>>
>> Tested on a 725, mostly with Lasi-based devices.  It'd be nice if someone
>> tested this on an IOSAPIC-based machine (eg a500/b2000/n4000/j7000/c8000)
> 
> 
> build and boot fine on n4k (64bit 2way system) (on going to rebuild 
> kernel ;-)
> same results on b2k 64bit kernel (32bit on going to build)
32bit kernel seems to works as fine as 64bit one :-)

> 
>> I'd like to commit this soon and move onto step 2.
>>
> Just would like to test on b180 (on going to build too)
Unfortunately this system is remote and I do not find any way to break this pdc boot loop:
[...]
Boot Device not ready.
Retrying Boot Device...
Boot Device not ready.
Retrying Boot Device...
Boot Device not ready.
Retrying Boot Device...
[...]

> and c110 ;-)

Boot (and seems to works) fine also :-)

Hope that help you to go ahead.

Joel
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I have a C240 satisfyingly running Debian Testing and kernels
from 2.4.17 to 2.4.27-pa4, both stock and custom compiled.

However, no variation of 2.6.x ever booted. Since the last message
I see is that infamous =BByou may need to switch your console=AB I
eventually organized a serial cable, a second machine running
minicom and got the same result:

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Attempting to boot Primary Path...

BOOTABLE DEVICE FOUND:
   Path Number        Device Path              Device Type and Utilities
   -----------        -----------------        -------------------------
   P0                 FWSCSI.0.0               IBM     DNES-309170W
                                               IPL

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.5 root@c3k Fri May 14 16:17:38 MDT 2004
Skipping extended partition 6 - beyond reach of IPL

Partition Start(MB) End(MB) Id Type
1               1      15   f0 Palo
2              16     503   83 ext2
3             504     980   82 swap
5             981    2887   83 ext2

PALO(F0) partition contains:
    0/vmlinux32 4078989 bytes @ 0x44000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=3D/dev/sda2 HOME=3D/ max_loop=3D64 console=
=3DttyS0 TERM=3D'
Selected kernel: /boot/vmlinux from partition 2
Selected ramdisk: /boot/initrd.img-2.6.8-1-32 from partition 2
ELF32 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 2265344 mediaptr 0x1000
Segment 1 load 0032c000 size 458886 mediaptr 0x22b000
Loading ramdisk 3133440 bytes @ 3fcf1000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Above kernel is the stock Debian kernel-image-2.6.8-1-32.
I also experimented with a few custom compiled ones (no initrd,
NIC driver statically), same result.

Where is this FAQ item mentioned above?
And how is this ment, anyway?
Just switching consoles within HP's =BBBIOS=AB,
or passing some arguments via /etc/palo.conf,
or compiling the kernel with different settings?

I'd really like to help more, but without any diagnostics of 2.6.x ...
Well, here is the start of dmesg when booting with a custom compiled
kernel:

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Linux version 2.4.27-pa4 (root@lnzx02) (gcc version 3.3.4 (Debian 1:3.3.4-1=
3)) #1 Wed Dec 22 10:21:43 CET 2004
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Determining PDC firmware type: System Map.
model 00005990 00000481 00000000 00000002 782320ae 100000f0 00000008 000000=
b2 000000b2
vers  00000501
CPUID vers 14 rev 23 (0x000001d7)
capabilities 0x2
model 9000/782/C240+
Total Memory: 1536 Mb
pagetable_init
On node 0 totalpages: 393216
zone(0): 393216 pages.
zone(1): 0 pages.
zone(2): 0 pages.
LED display at f0190001 registered
Kernel command line: root=3D/dev/sda2 HOME=3D/ max_loop=3D64 console=3Dtty0=
 sti=3D10/0/4/0 sti_font=3DVGA8x16 TERM=3Dlinux palo_kernel=3D2/boot/vmlinu=
x-2.4.27-pa4
Console: colour dummy device 160x64
Calibrating delay loop... 470.22 BogoMIPS
Memory: 1551652k available
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode cache hash table entries: 131072 (order: 8, 1048576 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 131072 (order: 7, 524288 bytes)
Page-cache hash table entries: 524288 (order: 9, 2097152 bytes)
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port (12) at 0xfff88000 [8], versions 0x580, 0xf, 0xb
2. Dino PCI Bridge (13) at 0xf2000000 [8/0], versions 0x680, 0x3, 0xa,  add=
itional addresses: 0xf2800000
3. Raven U/L2 Dino RS-232 (10) at 0xf2003000 [8/0/63], versions 0x6, 0x0, 0=
x8c
4. Raven U/L2 Dino PS/2 Port (10) at 0xf2001000 [8/1], versions 0x6, 0x0, 0=
x96
5. Raven+ w SE FWSCSI Core BA (11) at 0xffd00000 [8/16], versions 0x56, 0x0=
, 0x81,  additional addresses: 0xffd0c000 0xffc00000
6. Raven+ w SE FWSCSI Core Centronics (10) at 0xffd02000 [8/16/0], versions=
 0x56, 0x0, 0x74,  additional addresses: 0xffd01000 0xffd03000
7. Raven+ w SE FWSCSI Core Audio (10) at 0xffd04000 [8/16/1], versions 0x56=
, 0x4, 0x7b
8. Raven+ w SE FWSCSI Core RS-232 (10) at 0xffd05000 [8/16/4], versions 0x5=
6, 0x0, 0x8c
9. Raven+ w SE FWSCSI Core SCSI (10) at 0xffd06000 [8/16/5], versions 0x56,=
 0x0, 0x82
10. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08000 [8/16/7], versions=
 0x56, 0x0, 0x84
11. Raven+ w SE FWSCSI Core PS/2 Port (10) at 0xffd08100 [8/16/8], versions=
 0x56, 0x0, 0x84
12. U2-IOA BC GSC+ Port (7) at 0xf203f000 [8/63], versions 0x501, 0x1, 0xc
13. U2-IOA BC Runway Port (12) at 0xfff8a000 [10], versions 0x580, 0xf, 0xb
14. Cujo PCI Bridge (13) at 0xf1000000 [10/0], versions 0x682, 0x1, 0xa,  a=
dditional addresses: 0xf1800000 0xf6000000
15. Dino RS-232 (10) at 0xf1003000 [10/3], versions 0x7, 0x0, 0x8c
16. U2-IOA BC GSC+ Port (7) at 0xf103f000 [10/63], versions 0x501, 0x1, 0xc
17. Raven U 240 (9000/780/C240) (0) at 0xfffa0000 [32], versions 0x599, 0x0=
, 0x4
18. Memory (1) at 0xfffb1000 [49], versions 0x6f, 0x0, 0x9
CPU(s): 1 x PA8200 (PCX-U+) at 236.000000 MHz
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
Dino version 3.1 found at 0xf2000000
Cujo version 2.0 found at 0xf1000000
Enabling Cujo 2.0 bug workaround
Don't recognise Cujo at address 0xf1000000, not enabling workaround
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Soft power switch enabled, polling @ 0xf0140000.
Starting kswapd
Journalled Block Device driver loaded
STI GSC/PCI graphics driver version 0.9
STI PCI graphic ROM found at f1e00000 (2048 kB), fb at f6000000 (32 MB)
STI word mode ROM at f1e00044, hpa at f6000000
STI id 2fc1066b-9a02587, conforms to spec rev. 8.09
STI device: HPA4554A
stifb: Unsupported gfx card id 0x2fc1066b
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] C240 and Linux 2.6.x
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To: Alexander Bartolich <alexander.bartolich@gmx.at>
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Xref: news.gmane.org gmane.linux.ports.parisc:25067

Hello Alexander,

Alexander Bartolich wrote:
> I have a C240 satisfyingly running Debian Testing and kernels
> from 2.4.17 to 2.4.27-pa4, both stock and custom compiled.
> 
> However, no variation of 2.6.x ever booted. Since the last message
> I see is that infamous you may need to switch your console I
> eventually organized a serial cable, a second machine running
> minicom and got the same result:
> 
[...]
> 
> Where is this FAQ item mentioned above?
Simply at <http://www.parisc-linux.org/> :-)

> And how is this ment, anyway?
> Just switching consoles within HP's BIOS,
Two possibility:
     1) disconect all kdb from builtin interfaces (on my c110 there are ps2 and hp-hil) then pdc (hp's 'bios') will switch 
automaticaly to serial port 1 as console (then booting kernel will also use this)
     2) at pdc boot prompt (Main Menu: Enter command or menu > ) (this is the one of my c110) choose submenu "COnfiguration menu" in 
which option "PAth [PRI|ALT] [<path>]" would help you to select your console (see: help path) (e.g. to set serial1 as console: "path 
con serial_1"

> or passing some arguments via /etc/palo.conf,
only requested for some k model iirc (to force kernel to use ttyB0 for the mux)

> or compiling the kernel with different settings?
> 
At a first glance I would try first the b180 config (a quick look at <http://www.openpa.net/index.html>, seems to me the nearest):
prebuild kernel for different model are available at <http://cvs.parisc-linux.org/download/linux-2.6/> (see instruction at the top 
of page to install package :-)

or build your own: in the subdir arch/parisc/configs/ you would find b180_defconfig which you copy as .config in the top of your 
kernel tree then "make oldconfig; make vmlinux" ;-)

> I'd really like to help more, but without any diagnostics of 2.6.x ...
> Well, here is the start of dmesg when booting with a custom compiled
> kernel:
> 
Not trivial exercise, but you can try to build an equivalent one for 2.6 (simply copy the 2.4 .config into 2.6 was not enough for my 
c110, I realy have to check option by option)

[...]
> STI device: HPA4554A
> stifb: Unsupported gfx card id 0x2fc1066b
A few gfx card are supported (lack of doc) :-(

Even thought some foreign pci card (some ATI and Vodoo iirc) are reported to works (not using stifb obviously because couldn't be 
detected by pdc) for X (see m-l: <http://www.parisc-linux.org/mailing-lists/index.html> )

Hth,
	Joel
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Subject: [parisc-linux] binutils 32/64 bit question
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Xref: news.gmane.org gmane.linux.ports.parisc:25068

has anyone toyed around with having the default hppa binutils support both 
32bit and 64bit code ?

i was thinking along the lines of how sparc binutils sets the default target 
based upon the configure target (32bit or 64bit), but always includes support 
for the other ...
-mike
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Subject: Re: [parisc-linux] binutils 32/64 bit question
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> has anyone toyed around with having the default hppa binutils support both 
> 32bit and 64bit code ?

The main problem is that ld is different.  It would take some work
to merge them.  The 64-bit ld uses .opd's and the 32-bit ld doesn't.
There are advantages to using .opd's (e.g., function descriptors
are unique).  We've talked about this but no significant progress
has been made.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sat, Jan 01, 2005 at 06:39:13PM -0500, Mike Frysinger wrote:
> On Wednesday 29 December 2004 02:19 pm, Mike Frysinger wrote:
> > system booted nicely :)
> 
> fyi, i have two of these drives ... the other i use in an alpha of mine ...
> 
> on the alpha, 2.6.10 mainline just hangs at boot during SCSI negotiation ... i 
> ripped out the hunks that apply to the files in drivers/scsi/sym53c8xx_2/ 
> from patch-2.6.10-pa2 and applied it to 2.6.10 mainline and the resulting 
> kernel booted nicely ... again, the system fell back to async transfer mode, 
> but that's better than nothing at all

I build i386 and ia64 kernels from the parisc CVS tree ... alpha should
work as well in the pa tree as it does in mainline.  If something
*doesn't* work, let me know.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Thu, Dec 30, 2004 at 04:40:38PM +0200, Martin-ric Racine wrote:
> On Thu, 30 Dec 2004, Martin-ric Racine wrote:
> 
> > On Thu, 30 Dec 2004, Martin-ric Racine wrote:
> > However, support for the front-panel LEDs and switches is BROKEN in 2.6.10-pa1:
> > when I press the power switch, it kills the AC power instead of sending a signal
> > to the kernel to shut itself down.  OUCH!  The power/status LED is also off.
> 
> This is still broken in 2.6.10-pa2 as well.

On which machine?  It works fine on my 725 and c3600.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Fri, Dec 31, 2004 at 02:23:30PM -0700, Grant Grundler wrote:
> Yes, STI should continue to work with 2.6.x kernels.
> This sounds like a bug.

I fetched palinux-b180-defconfig-2.6.10-pa2_0-2_all.deb from
http://cvs.parisc-linux.org/download/linux-2.6/autobuild/b180_defconfig/
and build a nice vmlinux-2.6.10-pa2.

This gives me nice console output on booting, so there is definitely
something wrong with Debian's kernel-image-2.6.8-1-32.

Howver, now comes the bad news.

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Command line for kernel: 'root=3D/dev/sda2 HOME=3D/ max_loop=3D64 console=
=3DttyS0 TERM=3Dvt102 palo_kernel=3D2/boot/vmlinux'
Selected kernel: /boot/vmlinux from partition 2
ELF32 executable
Entry 00100000 first 00100000 n 1
Segment 0 load 00100000 size 3514501 mediaptr 0x1000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

CPU'
CPU(s): 1 x PA8200 (PCX-U+) at 236.000000 MHz
Setting cache flush threshold to 40 (1 CPUs online)
Lasi version 0 at 0xffd00000 found.
Dino [8/0] version 3.1 found at 0xf2000000
Cujo version 2.0 found at 0xf1000000
SCSI subsystem initialized
unwind_init: start =3D 0x1034aea0, end =3D 0x1036ed70, entries =3D 9197
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
Soft power switch enabled, polling @ 0xf0140000.
STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f1e00000 (2048 kB), fb at f6000000 (32 MB)
    id 2fc1066b-9a02587, conforms to spec rev. 8.09
    graphics card name: HPA4554A
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
stifb: 'HPA4554A' (id: 0x2fc1066b) not supported.
lp: driver loaded but no devices found
Generic RTC Driver v1.07
serio: GSC PS/2 keyboard port at 0xffd08000 irq 69 @ 8:16:7
serio: GSC PS/2 mouse port at 0xffd08100 irq 69 @ 8:16:8
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq =3D 90) is a 16550A
ttyS1 at MMIO 0xf2003800 (irq =3D 106) is a 16550A
parport_init_chip: initialize bidirectional-mode.
parport0: PC-style at 0xffd02800, irq 88 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
loop: loaded (max 64 devices)
PPP generic driver version 2.4.2
Linux Tulip driver version 1.1.13 (May 11, 2002)
Backtrace:
 [<10202ea4>] pci_device_probe_static+0x60/0x78
 [<10202ed8>] __pci_device_probe+0x1c/0x34
 [<10202f1c>] pci_device_probe+0x2c/0x58
 [<1023dbe0>] driver_probe_device+0x48/0x90
 [<1023dd5c>] driver_attach+0x80/0xa8
 [<1023e2e0>] bus_add_driver+0xb8/0xe0
 [<1023e878>] driver_register+0x44/0x50
 [<102031f8>] pci_register_driver+0x54/0x60
 [<103d189c>] do_initcalls+0x8c/0x138
 [<10103760>] init+0x38/0x104
 [<1010bc5c>] ret_from_kernel_thread+0x1c/0x24


Kernel Fault: Code=3D26 regs=3D11474480 (Addr=3D00000004)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 10460010 103eb100 0000000c
r04-07  103915cc 10391590 ffffffed 11750000
r08-11  11462800 00000003 10313800 11750220
r12-15  10332800 10391810 80000080 11462848
r16-19  f000167c 00000060 f00001f0 00000000
r20-23  00000030 0000000e f2000000 00000020
r24-27  11750230 00000a00 11462848 1036f010
r28-31  00000000 11474488 11474480 1020119c
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 103eb120 103eb124
 IIR: 0e681096    ISR: 00000000  IOR: 00000004
 CPU:        0   CR30: 11474000 CR31: 103c8000
 ORIG_R28: 1048a1a0
 IAOQ[0]: tulip_init_one+0x23c/0xdc0
 IAOQ[1]: tulip_init_one+0x240/0xdc0
 RP(r2): tulip_init_one+0x21c/0xdc0
Kernel panic - not syncing: Kernel Fault
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

2.4.27-pa4 runs fine with the Tulip NIC.

$ grep -i tulip /var/log/dmesg=20
Linux Tulip driver version 0.9.15-pre12 (Aug 9, 2002)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 0061.
eth0: Digital DS21143 Tulip rev 48 at 0xff00, 00:60:B0:EA:C8:DE, IRQ 96.

$ /usr/bin/lspci
0000:00:13.0 SCSI storage controller: LSI Logic / Symbios Logic 53c875 (rev=
 04)
0000:00:14.0 Ethernet controller: Digital Equipment Corporation DECchip 211=
42/43 (rev 30)
0000:01:04.0 Display controller: Hewlett-Packard Company Visualize FX4 (rev=
 02)

Alright. Where is the right place to send this?=20

--=20
This ain't no sig.

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_______________________________________________
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Subject: Re: front-panel LED and switch support broken (was: 2.6.10-pa1
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On Mon, 3 Jan 2005, Matthew Wilcox wrote:

> On Thu, Dec 30, 2004 at 04:40:38PM +0200, Martin-=C9ric Racine wrote:
> > On Thu, 30 Dec 2004, Martin-=C9ric Racine wrote:
> >=20
> > > On Thu, 30 Dec 2004, Martin-=C9ric Racine wrote:
> > > However, support for the front-panel LEDs and switches is BROKEN in 2=
=2E6.10-pa1:
> > > when I press the power switch, it kills the AC power instead of sendi=
ng a signal
> > > to the kernel to shut itself down.  OUCH!  The power/status LED is al=
so off.
> >=20
> > This is still broken in 2.6.10-pa2 as well.
>=20
> On which machine?  It works fine on my 725 and c3600.

712.

--=20
Martin-=C9ric Racine, ICT Consultant
http://www.iki.fi/q-funk/



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Subject: Re: [parisc-linux] C240 and Linux 2.6.x
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On Mon, Jan 03, 2005 at 07:13:34PM +0100, Alexander Bartolich wrote:
> This gives me nice console output on booting, so there is definitely
> something wrong with Debian's kernel-image-2.6.8-1-32.

Good.

> Howver, now comes the bad news.

Thanks for capturing and sending the console log.

...
> Linux Tulip driver version 1.1.13 (May 11, 2002)
> Backtrace:

[ hrm...IOAQ is missing from the backtrace ... maybe that's intentional ]

>  [<10202ea4>] pci_device_probe_static+0x60/0x78
>  [<10202ed8>] __pci_device_probe+0x1c/0x34
>  [<10202f1c>] pci_device_probe+0x2c/0x58
>  [<1023dbe0>] driver_probe_device+0x48/0x90
...
> Kernel Fault: Code=26 regs=11474480 (Addr=00000004)

I don't see this with -pa2 or -pa3 on a500 or j6000.
Likely some problem with dino or ccio support.

>  IAOQ[0]: tulip_init_one+0x23c/0xdc0
>  IAOQ[1]: tulip_init_one+0x240/0xdc0
>  RP(r2): tulip_init_one+0x21c/0xdc0

Just have to figure out where in tulip_init_one() +0x240 is pointing.
I'll try to track this down after plowing through the
back-from-2-weeks-off email backlog.

> Alright. Where is the right place to send this? 

Normally just to parisc-linux@lists.p-l.o mailing list.
I've dropped debian-hppa since the bits aren't in debian (yet).

thanks,
grant
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On Tue, Jan 04, 2005 at 02:37:29AM +0200, Martin-ric Racine wrote:
> Silly question but well:  
> 
> Would this source file shuffling perhaps also require massaging the dependencies
> in the kernel configuration scripts?

The Linux build system has "always" (at least as far back as 2.0 anyway)
automatically generated dependencies for each file, it's not like, eg gdb.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


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> Looking at the stack dump (a couple of layers are missing, is this because
> of tail-call optimisations?)

probably because we hit an asm function and can't unwind reliably
through it. it's on my list of things to fix.

randolph
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On Wed, Dec 29, 2004 at 07:45:15PM +0000, Joel Soete wrote:
> Taken this into account, I move parport_gsc.h into drivers/parport and 
> remove stuff from parport_gsc.c
> (btw I add a gnu license to parport_gsc.h based on the one of parport_gsc.c 
> ;-)

Committed. I'll roll the -pa number shortly.

grant


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On Thu, Dec 30, 2004 at 11:04:15PM -0500, John David Anglin wrote:
> > has anyone toyed around with having the default hppa binutils support both 
> > 32bit and 64bit code ?
> 
> The main problem is that ld is different.  It would take some work
> to merge them.  The 64-bit ld uses .opd's and the 32-bit ld doesn't.
> There are advantages to using .opd's (e.g., function descriptors
> are unique).  We've talked about this but no significant progress
> has been made.

Progress on:

a. Adding OPD's to the 32-bit code?

b. Add multiarch binutils support for both 32/64 bit? 

:)

c.

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On Mon, Jan 03, 2005 at 07:13:34PM +0100, Alexander Bartolich wrote:
> I fetched palinux-b180-defconfig-2.6.10-pa2_0-2_all.deb from
> http://cvs.parisc-linux.org/download/linux-2.6/autobuild/b180_defconfig/
> and build a nice vmlinux-2.6.10-pa2.
...

> Linux Tulip driver version 1.1.13 (May 11, 2002)
...
> Kernel Fault: Code=26 regs=11474480 (Addr=00000004)
...
>  IAOQ[0]: tulip_init_one+0x23c/0xdc0
>  IAOQ[1]: tulip_init_one+0x240/0xdc0
>  RP(r2): tulip_init_one+0x21c/0xdc0

The code in question is:
...
103eb100:       34 17 00 40     ldi 20,r23
103eb104:       2b 78 e0 00     addil f1000,dp,%r1
103eb108:       34 1a 00 00     ldi 0,r26
103eb10c:       48 33 01 60     ldw b0(,r1),r19
103eb110:       34 f8 04 60     ldo 230(r7),r24
103eb114:       91 00 20 00     cmpiclr,= 0,r8,r0
103eb118:       08 0f 02 5a     copy r15,r26
103eb11c:       34 19 14 00     ldi a00,r25
103eb120:       0e 68 10 96     ldw 4(,r19),r22		<== Fault
103eb124:       e6 c0 20 00     be,l 0(sr4,r22),%sr0,%r31
103eb128:       08 1f 02 42     copy r31,rp
103eb12c:       87 80 2c 50     cmpib,= 0,ret0,103eb75c <tulip_init_one+0x878>
103eb130:       0d 7c 12 90     stw ret0,8(,r11)
103eb134:       49 73 00 20     ldw 10(,r11),r19
103eb138:       37 94 10 00     ldo 800(ret0),r20

"103eb124: be,l" is an indirect function call.
The fault occurs when the function pointer is loaded.
This means the function table pointer (R19) hasn't been initialized.

I'm still trying to track down which indirection function this is.

grant
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On Mon, Jan 03, 2005 at 07:13:34PM +0100, Alexander Bartolich wrote:
> http://cvs.parisc-linux.org/download/linux-2.6/autobuild/b180_defconfig/
> and build a nice vmlinux-2.6.10-pa2.
...
> CPU(s): 1 x PA8200 (PCX-U+) at 236.000000 MHz

Sorry - I should have recognized this sooner.
The B180 defconfig will NOT run on C-class machines:
#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
# 
CONFIG_GSC=y
# CONFIG_HPPB is not set
# CONFIG_IOMMU_CCIO is not set
...

CONFIG_IOMMU_CCIO needs to be enabled.
The failing function call was probably dma_ops table not being initialized.

Can you try this "32" bit kernel?
http://cvs.parisc-linux.org/download/linux-2.6/autobuild/32/palinux-32-2.6.10-pa5_0-2_all.deb

thanks,
grant
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On Thursday 06 January 2005 01:48 pm, Ben Fisher wrote:
> What do you do about /etc/fstab for the f0 partition?  Can that make palo
> stop working?

nothing ... just pretend the partition doesnt exist :)

> I read some stuff last night online about HPUX users having similar
> troubles if they did not run "lifinit" to initialize the LIF image.  Is
> there a command in Gentoo which does this?  Is palo supposed to take care
> of it?

i believe so ... of course more experienced people could talk about this; ive 
never used HPUX

> Is there anything else I could have done wrong to create this problem?
> Since you have a working c3600 with Gentoo, could you send me a copy of
> your /etc/palo.conf, /etc/fstab, and any other configuration files you
> think important?

here's my fdisk:
Disk /dev/sda: 50.0 GB, 50019202560 bytes
255 heads, 63 sectors/track, 6081 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1           3       24066   f0  Linux/PA-RISC boot
/dev/sda2               4          10       56227+  83  Linux (/boot)
/dev/sda3              11         133      987997+  83  Linux (/)
/dev/sda4             134        6081    47777310   83  Linux (/usr)
[no swap, the machine has ~3gigs of ram :D]

fstab:
/dev/sda2               /boot   ext3    noauto,noatime  1 1
/dev/sda3               /               ext3    noatime                 0 1
/dev/sda4               /usr    ext3    noatime                 0 2

palo.conf:
--commandline=2/vmlinux root=/dev/sda3 term=ttyS0
--init-partitioned=/dev/sda
--recoverykernel=/boot/vmlinux.old

palo:
palo version 1.5 root@hake Fri Oct  1 13:58:29 EDT 2004
ELF32 executable
Partition Start(MB) End(MB) Id Type
1               1      23   f0 Palo
2              24      78   83 ext2
3              79    1043   83 ext2
4            1044   47700   83 ext2
F0 partition start sector 63 length 48132
do_ra(1, 5, 3, -1, '2/vmlinux root=/dev/sda3 term=ttyS0', 4, -1, 32256, 
24643584)
check_bootloader 213
checksum(0x2f270, 36864) = 0x00000000
ipl: addr 32768 size 36864 entry 0x0
 ko 0x0 ksz 0 k64o 0x0 k64sz 0 rdo 0 rdsz 0
<2/vmlinux root=/dev/sda3 term=ttyS0>
check_bootloader 650
checksum(0x26268, 36864) = 0x00000000
ipl: addr 32768 size 36864 entry 0x0
 ko 0x48000 ksz 4727926 k64o 0x0 k64sz 0 rdo 0 rdsz 0
<2/vmlinux root=/dev/sda3 term=ttyS0>

> Finally, what Graphics card are you using on your machine?  I think I've
> still got the FX-e card in my system, and I'm thinking about trading it for
> an ATI Radeon so I can run X, KDE, etc.

mine still has a Visualize FX4 ... the box is acting as a dev server for 
Gentoo, so i never bothered screwing with X on the box
-mike
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On Thursday 06 January 2005 01:05 pm, Ben Fisher wrote:
> (I could not get the 64 bit version to work at all! - no
> hppa 64 bit gcc compiler, or something like that), 

on gentoo you have to emerge the 64bit compiler sep from the regular 32bit 
one ... then again, i wouldnt recommend trying it until you're sure you can 
get a 32bit kernel to boot (i havent been able to boot a 64bit kern on my 
C360 in quite sometime, i dont think i tried on the C3600)

> Palo version 1.2 root@LiveCD Wen Jan 5 21:35:19 EST 2005
> Partition Start (MB)  End (MB)          ID      Type
> 1               1       16      f0      Palo
> 2               17      78      83      EXT2
> 3               79      1033    82      SWAP
> 4               1034    8678    83      EXT2
> IPL: ADDR 16384  Size 34816 Entry 0x0
> Ko 0x0 ksz 0 k640 0x0 k64sz 0 rdo 0 rdsz 0
> <2/kernel-2.6.7 ROOT=/dev/sda4 HOME=/>
> IPL: ADDR 16384  Size 34816 Entry 0x0
> Ko 0x0 ksz 0 k640 0x0 k64sz 0 rdo 0 rdsz 0
> <2/kernel-2.6.7 ROOT=/dev/sda4 HOME=/>

looks sane to me ...

> One theory I have is that the instruction guide never told me where to
> mount the f0 partition.  So far as the computer knows, it's just sitting
> there, probably not being written to.

that's because you cant mount it.  running palo takes care of all that magic.
-mike
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From: "Ben Fisher" <bfisher@intech-intl.com>
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Subject: RE: FW: [parisc-linux] Fwd: RE: Hp c3600 Gentoo Installation troubles
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To: "Mike Frysinger" <vapier@gentoo.org>
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Mike -

> that's because you cant mount it.  running palo takes care of all that
magic.

What do you do about /etc/fstab for the f0 partition?  Can that make palo
stop working?

I read some stuff last night online about HPUX users having similar troubles
if they did not run "lifinit" to initialize the LIF image.  Is there a
command in Gentoo which does this?  Is palo supposed to take care of it?

Is there anything else I could have done wrong to create this problem?
Since you have a working c3600 with Gentoo, could you send me a copy of your
/etc/palo.conf, /etc/fstab, and any other configuration files you think
important?

Finally, what Graphics card are you using on your machine?  I think I've
still got the FX-e card in my system, and I'm thinking about trading it for
an ATI Radeon so I can run X, KDE, etc.

Thanks for all your help!

-Ben

-----Original Message-----
From: Mike Frysinger [mailto:vapier@gentoo.org]
Sent: Thursday, January 06, 2005 1:32 PM
To: Ben Fisher
Cc: gentoo-hppa@gentoo.org; parisc-linux@parisc-linux.org
Subject: Re: FW: [parisc-linux] Fwd: RE: Hp c3600 Gentoo Installation
troubles

On Thursday 06 January 2005 01:05 pm, Ben Fisher wrote:
> (I could not get the 64 bit version to work at all! - no
> hppa 64 bit gcc compiler, or something like that),

on gentoo you have to emerge the 64bit compiler sep from the regular 32bit
one ... then again, i wouldnt recommend trying it until you're sure you can
get a 32bit kernel to boot (i havent been able to boot a 64bit kern on my
C360 in quite sometime, i dont think i tried on the C3600)

> Palo version 1.2 root@LiveCD Wen Jan 5 21:35:19 EST 2005
> Partition Start (MB)  End (MB)          ID      Type
> 1               1       16      f0      Palo
> 2               17      78      83      EXT2
> 3               79      1033    82      SWAP
> 4               1034    8678    83      EXT2
> IPL: ADDR 16384  Size 34816 Entry 0x0
> Ko 0x0 ksz 0 k640 0x0 k64sz 0 rdo 0 rdsz 0
> <2/kernel-2.6.7 ROOT=/dev/sda4 HOME=/>
> IPL: ADDR 16384  Size 34816 Entry 0x0
> Ko 0x0 ksz 0 k640 0x0 k64sz 0 rdo 0 rdsz 0
> <2/kernel-2.6.7 ROOT=/dev/sda4 HOME=/>

looks sane to me ...

> One theory I have is that the instruction guide never told me where to
> mount the f0 partition.  So far as the computer knows, it's just sitting
> there, probably not being written to.

that's because you cant mount it.  running palo takes care of all that
magic.
-mike

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Subject: Re: FW: [parisc-linux] Fwd: RE: Hp c3600 Gentoo Installation troubles
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On Thu, 2005-01-06 at 13:31 -0500, Mike Frysinger wrote:
> > One theory I have is that the instruction guide never told me where to
> > mount the f0 partition.  So far as the computer knows, it's just sitting
> > there, probably not being written to.
> 
> that's because you cant mount it.  running palo takes care of all that magic.

Actually, that's not necessarily true.  If you have palo version 1.4 or
later, then the palo partition can be formatted as ext2/ext3 and mounted
just like any other partition.

However, by default palo will create unmountable partitions.

James


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On Thursday 06 January 2005 01:56 pm, James Bottomley wrote:
> On Thu, 2005-01-06 at 13:31 -0500, Mike Frysinger wrote:
> > > One theory I have is that the instruction guide never told me where to
> > > mount the f0 partition.  So far as the computer knows, it's just
> > > sitting there, probably not being written to.
> >
> > that's because you cant mount it.  running palo takes care of all that
> > magic.
>
> Actually, that's not necessarily true.  If you have palo version 1.4 or
> later, then the palo partition can be formatted as ext2/ext3 and mounted
> just like any other partition.
>
> However, by default palo will create unmountable partitions.

touche salesman ;)
lemme rephrase ... the default gentoo setup is such that you never have to 
mount the partition ... setup /etc/palo.conf and run palo
-mike
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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] Interrupt handling documentation
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I thought I should send a note to the mailing list about the interrupt
work I've been doing.  Then I thought, "No, I should use the Wiki".  So
I did ...

http://wiki.parisc-linux.org/Interrupts

Feel free to make corrections or send me comments on stuff that isn't clear.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: [parisc-linux] 2.6.11-rc3-pa3 smp "Segmentation fault" but not up
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--------------060808020302080701020707
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Hi all,

To stress a bit kernel I launch my usual loop test on the n4k (2way, 4Gb ram):
# while true ; do readprofile -r ; make $OPTB clean ; make $OPTB oldconfig; make -j2 $OPTB vmlinux 2>&1 | tee -a /var/logs/k-loop; 
readprofile >> /var/logs/prof-loop.doc ; done

With previous kernel it makes panic kernel hazardiously from 1 to more 200 occurences. With this 2.6.11-rc3-pa3 after about 49 runs 
some "Segmentation fault" occures:
make[3]: *** [drivers/pci/probe.o] Segmentation fault
make[3]: *** [drivers/block/ioctl.o] Segmentation fault
make[2]: *** [arch/parisc/math-emu/fpudispatch.o] Segmentation fault
make[2]: *** [arch/parisc/math-emu/driver.o] Segmentation fault
make[2]: *** [arch/parisc/math-emu/driver.o] Segmentation fault
make[2]: *** [arch/parisc/math-emu/frnd.o] Segmentation fault
make[2]: *** [arch/parisc/math-emu/driver.o] Segmentation fault
make[2]: *** [arch/parisc/math-emu/denormal.o] Segmentation fault
make[2]: *** [arch/parisc/math-emu/frnd.o] Segmentation fault
make[3]: *** [drivers/md/raid0.o] Segmentation fault
make[2]: *** [arch/parisc/math-emu/driver.o] Segmentation fault
make[2]: *** [arch/parisc/math-emu/driver.o] Segmentation fault
make[2]: *** [arch/parisc/math-emu/frnd.o] Segmentation fault
make[2]: *** [arch/parisc/math-emu/frnd.o] Segmentation fault

for some child's shell (I attached dmesg because very long).

I so stop this loop to reboot with same kernel but up build and relaunch the loop.
After about 12h it already runs 80 times without any segmantation fault.

Any idea?

Thanks,
     Joel

PS: this last was build with gcc-3.3-hppa64 and binutils-hppa64 while previous was build with hppa64-gcc-3.0 and same binutils

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Subject: Re: [parisc-linux] 2.6.11-rc3-pa3 smp "Segmentation fault" but not up
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On Sat, Jan 15, 2005 at 02:02:00PM +0000, Joel Soete wrote:
> With previous kernel it makes panic kernel hazardiously from 1 to more 200 
> occurences. With this 2.6.11-rc3-pa3 after about 49 runs some "Segmentation 
> fault" occures:
> make[3]: *** [drivers/pci/probe.o] Segmentation fault
> 
> for some child's shell (I attached dmesg because very long).
> 
> I so stop this loop to reboot with same kernel but up build and relaunch 
> the loop.
> After about 12h it already runs 80 times without any segmantation fault.
> 
> Any idea?

I suspect the new clear_user_page code.  Could you try backing that out
and rerunning your test?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] 2.6.11-rc3-pa3 smp "Segmentation fault" but not up
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Hello Grant,

Sorry for delay but the n stand in the office and join it from home i need to use vpn connection which deasable my local lan (and 
also my pop3 access to my isp :-( and obviously irc)

Grant Grundler wrote:
> On Sat, Jan 15, 2005 at 10:11:54PM +0000, Joel Soete wrote:
> 
>>this patch:
>><http://cvs.parisc-linux.org/linux-2.6/arch/parisc/kernel/pacache.S?r1=1.9&r2=1.10> ?
> 
> 
> I don't think willy is refering to any particular issue.
> 
> 
>>Well in doubt I revert all changes since:
>><http://cvs.parisc-linux.org/*checkout*/linux-2.6/arch/parisc/kernel/pacache.S?rev=1.9.20.2>
>>
>>Btw what do you suspect that Grant (and I) could have missed (just divid by 
>>2 the number of loop thanks to dword insn)?
> 
> 
> No - I mangled that. The code you submitted was correct in this regard.
Agree (but what could we imagine on a system which only have one atomic insn iirc?)

> I fixed the off-by-2x bug in the next commit:
> http://cvs.parisc-linux.org/linux-2.6/arch/parisc/kernel/pacache.S?r1=1.10&r2=1.11
> 
> My suspicion is the prefetching might be causing problems since it's going
> past the end of the page. The kernel tmp alias pages might be causing problems
> since we don't flush past the end of those. (Or something like that).
> 
sorry I didn't have yet understand all details of prefetching

> Can you remove only the prefetching in that algorithm?
> 
Yes, I did and already run one occurence of the loop without pb, .. so we have to be patient to see if first mentioned pb (failures 
after some loop occurence: about 50 last time) :-)

> 
>>But already strange results:
> 
> ...
> 
>>and after those first 11 failed it seems to continue??
> 
> 
> Do you mean after restarting the make the build completed?

No, just let continue the loop (that doesn't make sense to me but in fact I already encounter this case with 2.6.10-paXX but don't 
have time to report it).

Is nicol also encounter the same pb (just in case of small diff in hw config)?

Thanks,
	Joel
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Now I've fixed pdc_stable to not dereference a null ptr, I can see
why it failed.  The hardware path it has is:

# cat console/*
[10/0/14/1/1]
643 

To my mind, this is a broken hwpath.  The algorithm we use for converting
hwpaths to PCI busses says this is:
10 (PA)
10/0 (PA)
10/0/14 (PCI bridge 0e.0)
10/0/14/1/1 (PCI device 1.1)

We're actually supposed to decode this as:

10/0 (PA)
10/0/14/1 (PCI device 0e.1)
10/0/14/1/1 (subfunction 1?)

This isn't consistent breakage, only for serial console hwpath on
a sprockets machine.  N4000 reports [0/0/4/0] (Ike 0, Elroy 0, PCI
device 4.0).  Sprockets reports [10/0/15/1] for alternate boot path
(Astro 10, Elroy 0, PCI device 0f.1), [10/6/2/0] for graphics console,
and [10/0/14/2] for USB keyboard.

To my mind, SERIAL_1 should have been reported by a hwpath of 10/0/14/1
and then two layers -- the first being 1 or 2 for SERIAL_1 vs SERIAL_2,
and the second encoding 9600.8.none (which seems to be 643 for some
reason).

How should we be handling this?  Look for a device, then retry with the
hwpath shifted left if we don't find it?  How about when write support
is added?  What does HPUX do?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: Re: [parisc-linux] hwpath for superio serial console
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On Sun, Jan 16, 2005 at 05:47:28AM +0000, Matthew Wilcox wrote:
> # cat console/*
> [10/0/14/1/1]
> 643 
> 
> To my mind, this is a broken hwpath.

It is.
We can even detect those - the PCI dev/func needs to be
encoded as "func<<5 | dev" (ie 10/0/46/1) if it wanted
to follow the expected convention.

> 10/0/14/1/1 (PCI device 1.1)

It should be "10/0/14/1.1".

> We're actually supposed to decode this as:
> 
> 10/0 (PA)
> 10/0/14/1 (PCI device 0e.1)

So far so good.

> 10/0/14/1/1 (subfunction 1?)

no - see above.

> This isn't consistent breakage, only for serial console hwpath on
> a sprockets machine.

Right - someone botched how to display suckyio serial ports.
Maybe this was an attempt to make it consistent with other
serial ports not using "layers" to identify the port.

> To my mind, SERIAL_1 should have been reported by a hwpath of 10/0/14/1
> and then two layers -- the first being 1 or 2 for SERIAL_1 vs SERIAL_2,
> and the second encoding 9600.8.none (which seems to be 643 for some
> reason).

Yes.

> How should we be handling this?

Probably just ignore it. It's just a "handle" and people will have
to manually handle it as a quirk.

Try "in io" and see what it says for SERIAL_1 and SERIAL_2
on the astro based workstation.
My j6k show's it as 10/0/14/1/1.
So I think it's ok if Linux is consistent with what firmware displays.

grant
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Subject: [parisc-linux] Five year old bug found ;-)
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OK, I tracked down the change ... it was merely 4 years, 3 months ago ;-)

In txn_alloc_data, we test the bit width:

-       if ((virt_irq - CPU_IRQ_BASE) > (1 << (bits_wide - 1))) {
-               panic("Sorry -- didn't allocate valid IRQ for this device\n");
-       }

But the bracketing is wrong.  GSC devices could only allocate up to
16 IRQs (1 << (5 - 1)).  This should be 31, ((1 << bits_wide) - 1).
Or even better, just use >= and it becomes:

	if ((virt_irq - CPU_IRQ_BASE) >= (1 << bits_wide))

Much more intuitive and easy to understand, IMO.  Oh, and I'm rewriting
this to get rid of the panic ... what's committed later will look slightly
different to this.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
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Subject: Same pb on b2k 64bit + 2.6.11-rc2-pa0 [Was: [parisc-linux]
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Hello Grant,
> 
[...]
> > My suspicion is the prefetching might be causing problems since it's
going
> > past the end of the page. The kernel tmp alias pages might be causing=

problems
> > since we don't flush past the end of those. (Or something like that).=

> > 
> sorry I didn't have yet understand all details of prefetching
> 
> > Can you remove only the prefetching in that algorithm?
> > 
> Yes, I did and already run one occurence of the loop without pb, .. so
we
> have to be patient to see if first mentioned pb (failures 
> after some loop occurence: about 50 last time) :-)
> 
mmm, I was ongoing to forget why the n was looping on a kernel's build wh=
en
the b2k panic due to the same pb with lastest 2.6.11-rc2-pa0 (+workaround=
):
patst005 login: Backtrace:
 [<000000001017cd00>] do_wp_page+0x250/0x950
 [<000000001017ee14>] handle_mm_fault+0x1b4/0x1e0
 [<0000000010110ec4>] do_page_fault+0x2bc/0x360
 [<000000001011299c>] handle_interruption+0x34c/0x748
 [<0000000010107094>] intr_check_sig+0x0/0xc


Kernel Fault: Code=3D15 regs=3D000000001d68c540 (Addr=3D0000000020000000)=

      
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001110011100001111 Not tainted
r00-03  0000000000000000 0000000000000000 000000001017cd00 0000000010a0df=
c8
r04-07  00000000105e2020 000000001d874000 0000000010983960 000000000007e2=
b0
r08-11  000000001d71cad0 000000001e7e9c00 000000000ffffb25 000000001d4043=
f0
r12-15  0000000010983960 000000001d8dc000 0000000000000001 000000000006a4=
04
r16-19  000000001d432740 000000000006a404 000000000006b404 00000000000000=
00
r20-23  0000000000000000 0000000000000000 0000000000000000 00000000000000=
00
r24-27  00000000000000d2 0000000020000000 000000001d875000 00000000105e20=
20
r28-31  0000000010983960 000000001d68c510 000000001d68c540 00000000000000=
20
sr0-3   0000000000429800 0000000000000000 0000000000000000 00000000004298=
00
sr4-7   0000000000000000 0000000000000000 0000000000000000 00000000000000=
00

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101012c4 0000000010=
1012c8
 IIR: 0f2010d3    ISR: 0000000000000000  IOR: 0000000020000000
 CPU:        0   CR30: 000000001d68c000 CR31: 00000000105a0000
 ORIG_R28: 00000000103e3e68
 IAOQ[0]: copy_user_page_asm+0xa4/0xb0
 IAOQ[1]: copy_user_page_asm+0xa8/0xb0
 RP(r2): do_wp_page+0x250/0x950
Kernel panic - not syncing: Kernel Fault

I so applied the same work around:
--- arch/parisc/kernel/pacache.S.Orig   2005-01-25 13:44:26.000000000 +01=
00
+++ arch/parisc/kernel/pacache.S        2005-01-25 13:44:55.000000000 +01=
00
@@ -306,13 +306,18 @@
 
        ldd             0(%r25), %r19           /* bundle 1 */
        ldi             32, %r1                 /* PAGE_SIZE/128 =3D=3D 3=
2 */
+
+#if    0       /* Comment out prefetching awaiting better fix */
        ldw             64(%r25), %r0           /* prefetch 1 cacheline a=
head
*/
        ldw             128(%r25), %r0          /* prefetch 2 */
+#endif
 
 1:     ldd             8(%r25), %r20
+#if    0       /* Comment out prefetching awaiting better fix */
        ldw             192(%r25), %r0          /* prefetch 3 */
        ldw             256(%r25), %r0          /* prefetch 4 */
        nop     /* pad to preserve alignment */
+#endif
 
        ldd             16(%r25), %r21          /* bundle 2 */
        ldd             24(%r25), %r22
=3D=3D=3D=3D=3D=3D=3D=3D=3D><=3D=3D=3D=3D=3D=3D=3D=3D=3D

which help too

(I ran the build kernel loop on the smp n4k during a week: 612 runs amoun=
g
111 failed because of various page_fault :-)

Thanks,
Joel


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Subject: [parisc-linux] tests with IDE controller ... IRQ xy: nobody cared!
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Xref: news.gmane.org gmane.linux.ports.parisc:25094

Hi PA,

It has been quite a long time since I last tried to get
PCI IDE controllers working in my C3k. So I decided
whether anything has change in this situation lately
 (Debian/testing, 2.6.11-rc3-pa3, 32bit, gcc-3.4.4).

I tried a noname Silicon Image Sil680 based IDE controller
and a Promise Ultra100 Tx2 (I compiled all IDE stuff and
IDE drivers as modules, so I could more easily test it).
I didn't have any luck getting the IDE controller to work,
but at least now I got much different error messages than
I used to get (months ago).
Maybe this might help you to locate the problem:

kernel: Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
kernel: ide: Assuming 33MHz system bus speed for PIO modes; override
with idebus=xx
kernel: PDC20268: IDE controller at PCI slot 0000:01:04.0
kernel: PCI: 0000:01:04.0 has unsupported PM cap regs version (1)
kernel: PDC20268: chipset revision 2
kernel: PDC20268: ROM enabled at 0xf4a00000
kernel: PDC20268: 100%% native mode on irq 21
kernel:     ide0: BM-DMA at 0x12100-0x12107, BIOS settings: hda:pio, hdb:pio
kernel:     ide1: BM-DMA at 0x12108-0x1210f, BIOS settings: hdc:pio, hdd:pio
kernel: Probing IDE interface ide0...
kernel: hda: ST3120022A, ATA DISK drive
kernel: ide0 at 0x12500-0x12507,0x12402 on irq 21
kernel: irq 21: nobody cared!
kernel: Backtrace:
kernel:  [<10143de4>] __report_bad_irq+0x34/0xac
kernel:  [<10143f4c>] note_interrupt+0xbc/0xf4
kernel:  [<101438d0>] __do_IRQ+0x17c/0x190
kernel:  [<101072fc>] do_cpu_irq_mask+0xa8/0xe4
kernel:  [<1010c068>] intr_return+0x0/0x14
kernel: handlers:
kernel: [<002ed640>] (ide_intr+0x0/0x290 [ide_core])
kernel: Disabling IRQ #21
kernel: Probing IDE interface ide1...
kernel: hdc: PLEXTOR DVDR PX-716A, ATAPI CD/DVD-ROM drive
kernel: ide1 at 0x12300-0x12307,0x12202 on irq 21

This particular message showed up when I tried the 
Promise card with the pdc202xx_new driver in a 33MHz slot.
Exactly the same backtrace occurs when I put the card in
a 66MHz slot and also when I tried the Silicon Image card
with the siimage driver (33MHz).

As you can see from the log, the hdd and the DVD burner
are correctly detected, but I cannot access them; a
'mount /dev/hda ...' or a 'cat /dev/hda' results in
'cannot open /dev/hda'.

(The Promise card with the pdc202xx_old driver does load, but
 doesn't detect anything nor does anything show up in the logs)


Thanks a lot in advance,
   Max
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Subject: RE: [parisc-linux] tests with IDE controller ... IRQ xy: nobody cared!
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Xref: news.gmane.org gmane.linux.ports.parisc:25095

Hello Max,

Sorry if I have no idea for your pb but more an advise to request:

> kernel: hdc: PLEXTOR DVDR PX-716A, ATAPI CD/DVD-ROM drive
...
> 
> As you can see from the log, the hdd and the DVD burner
> are correctly detected
For the deployement of a custom hpux 11.11 we foreseen to build an ignite=

image on a dvd (not sure that could stil stand on a cd as for previous 11=
.00).

The question is: what unix tool(s) would you advise me to burn those dvd
(hpux or linux)?

Thanks in advance,
    Joel


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Subject: Re: [parisc-linux] tests with IDE controller ... IRQ xy: nobody cared!
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On Wed, 9 Feb 2005 07:34:57 +0100, Joel Soete <soete.joel@tiscali.be> wrote:
>
> For the deployement of a custom hpux 11.11 we foreseen to build an ignite
> image on a dvd (not sure that could stil stand on a cd as for previous 11.00).
> 
> The question is: what unix tool(s) would you advise me to burn those dvd
> (hpux or linux)?

For linux there are basically three backends:

1. cdrecord-ProDVD / cdrtools
   (non-GPL, ftp://ftp.berlios.de/pub/cdrecord/ProDVD/
   precompiled binaries available for non-commercial use)

2. cdrecord + DVD-patch
   (GPL, http://people.mandrakesoft.com/~warly/files/cdrtools)

3. dvd+-rw-tools / growisofs
   (GPL, http://fy.chalmers.se/~appro/linux/DVD+RW/)


As for GUIs/frontends, the most popular ones are
- k3b (recommended, www.k3b.org)
- xcdroast (www.xcdroast.org)
- nautilus-cd-burner
I can also recommend
- webCDwriter Pro (non-free: http://joerghaeger.de/webCDwriter/pro.html).
if you share DVD writer in your office with other people.

Most of these frontends use/support the dvd+rw-tools package.

Note that UDF (the 'standard' filesystem for DVDs) is still not
very well supported under linux, so most DVD burn apps use
the iso9660 filesystem instead (but that should not matter,
unless you want to burn movie-DVDs).

Greetings,
   Max
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Subject: Re: 2.6.10-rc1-pa16 still panic on c110 [WAS: [parisc-linux] c110
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Hello all,

Having far less time to spend to linux :_(, I come back shortly with those investigation:


Grant Grundler wrote:
> On Sun, Nov 21, 2004 at 04:18:26PM +0000, Joel Soete wrote:
> 
>>That works far better: no more panic at boot time :))
> 
> 
> good. I think the other problems you are have are either real HW problems,
> bugs in the driver or bugs in the hard disk firmware.
> You can rule out some of the hard disk firmware bugs by checking for
> newer versions of the firmware either at HP's site (URL
> is in the parisc-linux FAQ) or disk vendor's site.
> 
There are effectively a new fw revision for this disk but only available for hp engineer :-)

But getting back this disk to office, I had the idea to connect this disk to a b180 using the same lasi700 driver and drive exactely 
the same stress test (http://lists.parisc-linux.org/pipermail/parisc-linux/2004-November/025277.html) and no pb occured.

so could it be a hw pb with the scsi ctrlr ncr53c710 (the narrow se)?

Thanks again,
	Joel
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Cc: linux-input@atrey.karlin.mff.cuni.cz,
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- dropped from CC: "Brian S. Julin" <bri@calyx.com> (he is not very active on the HIL drivers any longer)
- added to CC: parisc-linux@parisc-linux.org (main parisc development mailing list)

Hi Vojtech,
Hi Dmitry,

First of all thanks a lot that you added the parisc HIL drivers to the linux-input tree.
Since the main development of the parisc tree happens in CVS at http://cvs.parisc-linux.org/linux-2.6 and since we usually stay in sync with Linus' latest bk tree, not all of the changes of the current linux-input tree are available for us as long as you didn't pushed your changes to him yet.
Additionally, the HIL sources you added are from november last year. Some of the problems have been fixed in the parisc cvs tree in the meantime.

On Saturday 12 February 2005 20:14, Vojtech Pavlik wrote:
> On Sun, Feb 06, 2005 at 10:45:42PM -0500, Dmitry Torokhov wrote:
> > I noticed that several new drivers for HP-PA have been added to the input
> > tree. I looked them over and have some concerns:
> > 
> > - hil_kbd and hil_ptr will not compile because now connect() methods
> >   return error codes, not void. Also, drivers should define ID table,
> >   and MODULE_DEVICE_TABLE, otherwise serio core will not consider them.

Yes, but only in your tree, not in Linus' yet. As soon as you push your tree up, I'll fix the issues and send you the diffs.

> > - there is no more serio->private, please use serio_get/set_drvdata.

Will do.

> > - using del_timer in drivers' exit routines is not safe (del_timer_sync
> >   should be used).

Will do.

> > - as far as I can see there is no need to do tasklet_disable before calling
> >   tasklet_kill.

Ok.

> > - having "return" after BUG() is pointless.
> > 
> > - what exactly the following fragment supposed to do?
> >
> > > static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait)
> > > {
> > >         unsigned long l;
> > > 
> > >         l = 0;
> > >         if (l != 0)
> > >                 return POLLIN | POLLRDNORM;
> > >         return 0;
> > > }

nothing :-)
Please just drop the hp_sdc_rtc.c driver for now - it's not working anyway.
We'll keep it in our parisc tree until it does something useful.

> > - formatting - according to CodingStyle functions' opening braces should
> >   be on the next line.

Will fix.

> I'm CC:ing Helge, who might know more, and tell us, when the issues will
> be fixed.

As soon as you push upstream, I'll fix the issues in our tree and send you the diffs. Would this be OK for you ?

Regards,
Helge

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Hi all,
I just finished the new pre-release (4.6.0-4.6.1-pre3) mc package for
Debian HPPA. I would like someone to take a look and eventually to give
some suggestion for its improvement.
You can apt-get both source and binary adding the following line in
/etc/apt/sources.list:

deb http://www.openlabs.it/~stex/debian ./
deb-src http://www.openlabs.it/~stex/debian ./

It has also been available for i386 and powerpc.
I would also like to submit a doubt: I used an HP9000/785 (C3k)
workstation for my work. How can I be sure that I compiled it as 32-bit
system binary of 64-bit system binary? If I remember well this C3k is a
64bit workstation, isn't it?

Thank you in advance for your precious help.

Regards

SteX

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> Hi all,
> are there any cross compilers for hppa in Debian bundle? what do you
use to
> x-compile from non-hppa to hppa?
> Thank you in advance

apt-cache search is used to look for packages. Alternatively you can
use packages.debian.org. Use toolchain-source to build cross
compilers.

OTOH, looking at the official website would have showed you this:
http://www.parisc-linux.org/software/index.html

Please avoid cross-posting when it's not necessary. debian-hppa is
meant to discuss Debian hppa related matters (userland), parisc-linux
is meant to discuss parisc linux *kernel* stuff.

Thx

Thibaut VARENE
PA/Linux ESIEE Team
http://www.pateam.org/



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Hi all,
are there any cross compilers for hppa in Debian bundle? what do you use to
x-compile from non-hppa to hppa?
Thank you in advance

Regards

SteX

PS: on ESIEE site I found some x-compilers, which I couldn't find as .deb;
is it the case to package for debian?
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On Mon, 21 Feb 2005 14:48:32 -0500, Harry Cochran <h.cochran@comcast.net> wrote:
> Hi,
> 
>         I have two problems I'm hoping to get help with:
> 
> 1. I need to add a NIC to my C3600. I discovered that there is no driver for
> the 3COM 3C905C and I don't recognize the drivers that are there. Could
> someone please tell me if there is a driver I can download for the 3C905C
> (the 3COM site has a "Linux" driver, but it's only for x86 platforms), or
> alternatively, what's the best 10/100 NIC I can buy and put in for which
> there is a Debian hppa driver.

As willy described, the driver for your 3Com card is in the 'vortex' driver.
I usually recommend Intel ExterExpress 100 and DEC/Intel Tulip cards;
those cards are usually more expensive, but the h/w is not as brain-dead
as the rest of the 100MBit NICs out there.
Personally I use a Intel EtherExpress 100 Pro as a second NIC in my
C3000 (with the e100 driver) and it works fine. I had less success with
a noname RealTek 8139 card, but I haven't tried that one for some years.

> 2. I upgraded my J6000 to 2.4.27 and added usb support. Now when I boot it
> gets to "Page-cache table entries ..." and then says "Searching for Devices"
> and says "Searching for Devices". This never times out ... it just sits
> there. I did get the machine to boot by adding an EG-PCI and a usb keyboard
> (it automatically went to pa con Graphics(3)), but the graphics are screwy
> (color dummy paints the right half of the screen with the boot lines and it
> dies somewhere along the way that isn't readable). I did get it to boot by
> brining it up in graphics mode, putting it into serial mode (pa con
> Serial_1) and then booting, but now when I boot again in serial mode with no
> keyboard and monitor attached, it says "Searching for Devices" again. I
> would like to get back to the point where it would just boot in serial
> console mode.

I have a C3000 that uses serial console, but it has a USB keyboard/mouse
attached. I use X with it (using an old Matrox Millenium card) which works
quite nicely with lastest CVS kernels from cvs.p-l.org (both 2.4 and 2.6).
I was definitely able to boot without USB keyboard/mouse attached and
with USB support built-in, but OTOH I haven't used 2.4 lately and I usually
boot with keyboard/mouse plugged in.

You might want to switch to 2.6, since apparently most of the PA hackers 
are no longer interested in 2.4 (the latest CVS version on cvs.p-l.org 
is 2.4.27 which has known security vulnerabilities; CVS 2.4 hasn't
been touched for about half a year now. I don't know about the debian
kernels).

Greetings,
   Max
_______________________________________________
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parisc-linux@lists.parisc-linux.org
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> 
> On Mon, 21 Feb 2005 14:48:32 -0500, Harry Cochran <h.cochran@comcast.ne=
t>
> wrote:
> > Hi,
> > 
> >         I have two problems I'm hoping to get help with:
> > 
> > 1. I need to add a NIC to my C3600. I discovered that there is no dri=
ver
> for
> > the 3COM 3C905C and I don't recognize the drivers that are there. Cou=
ld
> > someone please tell me if there is a driver I can download for the 3C=
905C
> > (the 3COM site has a "Linux" driver, but it's only for x86 platforms)=
,
> or
> > alternatively, what's the best 10/100 NIC I can buy and put in for wh=
ich
> > there is a Debian hppa driver.
> 
> As willy described, the driver for your 3Com card is in the 'vortex' dr=
iver.

Yes but I encountered weird difficulties (even on a i386 box) to configur=
e
a brother model 3C905B as needed:
see this old thread <http://lists.parisc-linux.org/pipermail/parisc-linux=
/2003-November/021619.html>

Hth,
   Joel


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From: Max Grabert <parisc@gmail.com>
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Subject: Re: [parisc-linux] NIC & "searching for devices"
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On Tue, 22 Feb 2005 10:34:46 +0100, Joel Soete <soete.joel@tiscali.be> wrote:

[....]

> Yes but I encountered weird difficulties (even on a i386 box) 
> to configure a brother model 3C905B as needed:
> see this old thread <http://lists.parisc-linux.org/pipermail/parisc-linux/2003-November/021619.html>

kargellan:/home/xam# lspci
0000:00:0d.0 Ethernet controller: 3Com Corporation 3c905C TX/TX-M
[Tornado] (rev 78)
0000:00:0e.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX
[Cyclone] (rev 30)
0000:00:0f.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M
[Tornado] (rev 78)
[...]

As you can see this is a ix86 machine with three 3com NICs
in it; It is running stable for almost 2 years now. Right now it is
running 2.6.11-rc4. BTW, all three network cards share one
interrupt (IRQ 11), which is also used by the USB port.

And there is also my ix86 laptop that is using a 'vortex' network
card, also running fine for almost 3 years now with many 
different linux kernel.

I'd rather say either your network card is broken/of poor quality
or there are some compatibility issues with your ix86  motherboard.
Anyway, this is going way off-topic ...


In my experience 3Com often produced okay-nice cards, but
sometimes they managed to release utter crap as well.
IMHO there are better alternatives available (Intel/DEC), 
where I don't have to take any risks.


Greetings,
  Max
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Xref: news.gmane.org gmane.linux.ports.parisc:25105

Hi,

	Could someone please help me recover from a failed attempt to upgrade my
J6000 to 2.6?

	Looks like I can't boot the 2.4 kernel I have on the system because it's
name doesn't end in 32 or 64 (it ends in smp) -><-.

	My J6000 has a cd-rom, so I thought maybe I could boot from that, but sea
ipl doesn't find it.

Here's my original question:

*************

	Sorry for the newbie question, but I'm trying to boot 2.6 and I don't quite
understand how to set up the "root=" for it.

My palo.conf says:
--command line=1/boot/vmlinux root=/dev/sda3 HOME=/ initrd=/initrd.img
console=ttyS0 TERM=vt102
--recoverykernel=/boot/vmlinux
--init-partitioned=/dev/sda

Here's what my palo.conf generates on boot right now:

0 1/boot/vmlinux
1 root=/dev/sda3
2 HOME=/
3 initrd=/initrd.img
4 console=ttys0
5 TERM=vt102

On boot I get:

cannot open root device "sda3" or unknownblock(2.0)
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs or unknown-block(2.0)

	I have seen one document which says I have to build a ramdisk, but it
doesn't tell me how. What's worse is that I can't get 2.4.26 to boot again
even though I have a symlink (vmlinux.old) to it. I tried changing line 0 to
1/boot/vmlinux.old (and deleting the "initrd=/initrd.img" line, but it still
boots 2.6.8. I even tried inserting a line saying
recoverykernel=/boot/vmlinux.old but that didn't help.

*************

	I'm sure there's an easy answer and maybe everyone is tired of answering
these kind of newbie questions, but I'm desperate, so I thought I'd try one
more time.

Thanks,

Harry


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Newbie mistake #1 was that I had the wrong (i386) cd. Now I can boot from
the hppa cd. However, the partition where I have /boot, SDA1, is listed
as -- Not Available --. So, I can't back out of the 2.6 install easily. Any
help on how to recover from here would be greatly appreciated.


Hi,

	Could someone please help me recover from a failed attempt to upgrade my
J6000 to 2.6?

	Looks like I can't boot the 2.4 kernel I have on the system because it's
name doesn't end in 32 or 64 (it ends in smp) -><-.

	My J6000 has a cd-rom, so I thought maybe I could boot from that, but sea
ipl doesn't find it.

Here's my original question:

*************

	Sorry for the newbie question, but I'm trying to boot 2.6 and I don't quite
understand how to set up the "root=" for it.

My palo.conf says:
--command line=1/boot/vmlinux root=/dev/sda3 HOME=/ initrd=/initrd.img
console=ttyS0 TERM=vt102
--recoverykernel=/boot/vmlinux
--init-partitioned=/dev/sda

Here's what my palo.conf generates on boot right now:

0 1/boot/vmlinux
1 root=/dev/sda3
2 HOME=/
3 initrd=/initrd.img
4 console=ttys0
5 TERM=vt102

On boot I get:

cannot open root device "sda3" or unknownblock(2.0)
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs or unknown-block(2.0)

	I have seen one document which says I have to build a ramdisk, but it
doesn't tell me how. What's worse is that I can't get 2.4.26 to boot again
even though I have a symlink (vmlinux.old) to it. I tried changing line 0 to
1/boot/vmlinux.old (and deleting the "initrd=/initrd.img" line, but it still
boots 2.6.8. I even tried inserting a line saying
recoverykernel=/boot/vmlinux.old but that didn't help.

*************

	I'm sure there's an easy answer and maybe everyone is tired of answering
these kind of newbie questions, but I'm desperate, so I thought I'd try one
more time.

Thanks,

Harry


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On Wed, Feb 23, 2005 at 10:56:34AM -0500, Harry Cochran wrote:
> Hi,
> 
> 	Sorry for the newbie question, but I'm trying to boot 2.6 and I don't quite
> understand how to set up the "root=" for it.

The name of the root disk might have changed IFF you have more
than one disk installed/connected to the system.
Look through console output 
> 
> My palo.conf says:
> --command line=1/boot/vmlinux root=/dev/sda3 HOME=/ initrd=/initrd.img

I expect this needs to say:
	initrd=1/boot/initrd.img

I personally like to point palo/elilo/lilo directly
at the file to load by default (and not a symlink).

> console=tys0 TERM=vt102
> --recoverykernel=/boot/vmlinux
> --init-partitioned=/dev/sda
> 
> Here's what my palo.conf generates on boot right now:
> 
> 0 1/boot/vmlinux
> 1 root=/dev/sda3
> 2 HOME=/
> 3 initrd=/initrd.img
> 4 console=ttys0
> 5 TERM=vt102
> 
> On boot I get:
> 
> cannot open root device "sda3" or unknownblock(2.0)

Well, if the kernel expects devfs mounted or something else,
then you have to sort out which /dev files are needed.

I suspect more likely either the sym53c8xx driver didn't get
loaded (no initrd found possibly) or more than one disk
is installed and the device name changed.

> Please append a correct "root=" boot option
> Kernel panic: VFS: Unable to mount root fs or unknown-block(2.0)
> 
> 	I have seen one document which says I have to build a ramdisk, but it
> doesn't tell me how.

mkinitrd is the command you are looking for. But I don't use an
initrd on my boxes since I'm building my own kernels. The initrd
is most useful for generic kernel builds where one wants every
possible driver available as a potential root device.  Since I
build my own kernels and know which drivers are needed for root,
I don't really need an initrd.

?  What's worse is that I can't get 2.4.26 to boot again
> even though I have a symlink (vmlinux.old) to it. I tried changing line 0 to
> 1/boot/vmlinux.old, but it still boots 2.6.8. I even tried inserting a line
> saying recoverykernel=/boot/vmlinux.old but that didn't help.
> 
> 	Sounds easy ... just go to 2.6 (the solution to a problem I'm trying to
> implement), but for this newbie, it's anything but.

*nod*

Here's my palo.conf:
ioz:~# cat /etc/palo.conf  
--commandline=0/vmlinux-2.6.11-rc2-pa3-UP root=/dev/sda3 panic=5 console=ttyS1
--format-as=2
--update-partitioned=/dev/sda

[ I've also added "noudev" to the commandline on some of the machines. ]

ioz:~# fdisk -l /dev/sda
ioctl32(fdisk:4277): Unknown cmd fd(4) cmd(40081272){00} arg(faf005f0) on /dev/sda

Disk /dev/sda: 73.4 GB, 73407865856 bytes
255 heads, 63 sectors/track, 8924 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          24      192748+  f0  Linux/PA-RISC boot
/dev/sda2              25         148      996030   82  Linux swap
/dev/sda3             149        2140    16000740   83  Linux
/dev/sda4            2141        8924    54492480   83  Linux

ioz:~# mount
/dev/sda3 on / type ext3 (rw,errors=remount-ro)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/sda1 on /boot type ext2 (rw)
/dev/sda4 on /home type ext3 (rw)


I hope the above should get you on the right track.



> 
> 	Please help.
> 
> Thanks,
> 
> Harry
> 
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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Hello Max,

Max Grabert wrote:
> On Tue, 22 Feb 2005 10:34:46 +0100, Joel Soete <soete.joel@tiscali.be> wrote:
> 
> [....]
> 
> 
>>Yes but I encountered weird difficulties (even on a i386 box) 
>>to configure a brother model 3C905B as needed:
>>see this old thread <http://lists.parisc-linux.org/pipermail/parisc-linux/2003-November/021619.html>
> 
> 
> kargellan:/home/xam# lspci
> 0000:00:0d.0 Ethernet controller: 3Com Corporation 3c905C TX/TX-M
> [Tornado] (rev 78)
> 0000:00:0e.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX
> [Cyclone] (rev 30)
mine was far older as far I could judge it was only a (rev 24)?

> 0000:00:0f.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M
> [Tornado] (rev 78)
> [...]
> 
> As you can see this is a ix86 machine with three 3com NICs
> in it; It is running stable for almost 2 years now.
Right but atm I was still running 2.4 (I only start 2.6 later in late May 2004).
Event thought there was already some patch available for 2.4, I was a bit lazy and prefer to replace nic by another :-(
(my bad, I don't remember where did I save it to make new test, grrr)

> Right now it is
> running 2.6.11-rc4. BTW, all three network cards share one
> interrupt (IRQ 11), which is also used by the USB port.
> 
> And there is also my ix86 laptop that is using a 'vortex' network
> card, also running fine for almost 3 years now with many 
> different linux kernel.
> 
> I'd rather say either your network card is broken/of poor quality
mmm I would like to find back (just for the fun)

> or there are some compatibility issues with your ix86  motherboard.
or should just required a fw upgrade (if possible) or use more recent driver of 2.6?

> Anyway, this is going way off-topic ...
> 
Obviously, but the most anoying is that I lake of time right now (in prod we have to resurect a proj frozen during last three years 
and so required a lot of work to update: middle ware first, then os update and finlay hw and its corresponding os (hpux-11.11 in 
fact for new rp3xxx to replace oldtimer as D and K class :-) ).

> 
> In my experience 3Com often produced okay-nice cards, but
> sometimes they managed to release utter crap as well.
mmm I didn't suspect hw but may be fw or driver?

> IMHO there are better alternatives available (Intel/DEC), 
> where I don't have to take any risks.
>
Cool advise ;-)

Thanks,
	Joel
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Subject: [parisc-linux] xfs module in vmlinux-2.6.11-pa2-a500_defconfig
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the xfs module in vmlinux-2.6.11-pa2-a500_defconfig doesn't load:

xfs: Global Offset Table overflow (used 1061, allowed 1023
modprobe: FATAL: Error inserting xfs (/lib/modules/2.6.11-pa2/kernel/fs/xfs/xfs.ko): Invalid argument

the reason for the update was a problem with the
vmlinux-2.6.8.1-pa11-a500_defconfig kernel, which I see from time to
time ...

mount: /dev/sdb5
: can't read superblock

running xfs_repair fixes the problem and the filesystem can be
mounted.

	Matthias
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Subject: RE: [parisc-linux] xfs module in vmlinux-2.6.11-pa2-a500_defconfig
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Hello Matthias,

...
> 
> the xfs module in vmlinux-2.6.11-pa2-a500_defconfig doesn't load:
> 
for my part I use a builtin driver on a b180 (kernel 2.6.11-pa2 cvs dated=

20050307)

> xfs: Global Offset Table overflow (used 1061, allowed 1023
> modprobe: FATAL: Error inserting xfs (/lib/modules/2.6.11-pa2/kernel/fs=
/xfs/xfs.ko):
> Invalid argument
> 
> the reason for the update was a problem with the
> vmlinux-2.6.8.1-pa11-a500_defconfig kernel, which I see from time to
> time ...
> 
> mount: /dev/sdb5
> : can't read superblock
> 
> running xfs_repair fixes the problem and the filesystem can be
> mounted.
> 
Any way after severall (about 3) working days (more then 3 cvs co, more t=
ar
xjvpf ..., patch, diff, ...) on such xfs, I encounter some I/O errors whi=
le
trying to apply a patch:
sdd1: rw=3D0, want=3D3129722848, limit=3D4098200
I/O error in filesystem ("sdd1") meta-data dev sdd1 block 0xba8bc7d8    
  ("xfs_trans_read_buf") error 5 buf count 4096

fwiw just umount xfs_check and 're-'mount this xfs and all seems to work
fine again.

hth,
    Joel


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Those subscribed to the parisc-linux-cvs list may have noticed the huge
number of merges I've been doing recently.  This has been mostly in aid
of this year's goal of getting PA-RISC to build out of Linus' tree.  I'm
at the point where it's reasonable to give a status update now, so here goes:

2.6.11-pa0 was approximately 813k of diff against Linus' tree with
changes everywhere.  We're now down to 396k of diff against 2.6.11-bk10!

Here's how that breaks down:

 - 196k of it is sym2 driver changes.  I expect that will be merged
   upstream shortly.
 - 49k of it is other scsi changes; 53c700, ncr53c8xx and scsi_transport_spi.
   Some of this is merged in James' scsi-misc-2.6 tree and other bits are
   waiting for that tree to be merged to Linus', hopefully before -rc1.
 - 56k is the ad1889 driver and related changes.  I'm holding off on
   submitting this until the driver is a bit closer to working on the
   request of Kyle and Stuart.
 - 40k is unmerged HIL header files.  I think they were inadvertently omitted;
   I've just pinged Linus and Vojtech about them
 - 3k is misc input stuff.
 - 25k is compat-related code.  I'm talking with Stephen Rothwell about
   some of it, this is going to be difficult to merge, I think.
 - 3k is Tulip driver changes.  Grant is handling these.
 - I've sent another 6k of misc changes to Linus today.
 - There's another 12k of misc patches in our tree:
   - some Kconfiggery (I'll take care of this)
   - NO_IRQ / SERIAL_IRQ_NONE (waiting on Ben Herrenschmidt)
   - pcmcia (James will take care of this)
   - FIONREAD (I'll deal with this)
   - IDE header (I want to review this)
   - CON_BOOT (needs fixing, I think I see what to do)
   - OPD bugfix (doesn't need to go upstream)
   - A small PA PCI patch I want to review
   - Perf counters update (missed today's submission)

I think only trivial fixes are needed to Linus' tree to allow
712_defconfig to build and boot.  The major merge headaches are the
CON_BOOT and compat code.  I'm going to stop deluging Linus with patches
for a week or so and work on making some of the unmergable bits more
mergable.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Subject: [parisc-linux] Re: FDDI (defxx) and Linux/PA = HPMC
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On Apr 10, 2005 9:20 PM, Max Grabert <parisc@gmail.com> wrote:

[...]

> I'm trying to get FDDI working on Linux/PA.
>
> So I put a DEFPA card into my c3k (2.6.12-rc2-pa1, 32bit,
> gcc-3.4, Debian/testing), but it didn't get far:

Sorry, hat to reply to myself, forgot to attach a 'ser pim' output ...

Note the driver (defxx.c) is quite old, but is reported to
work on x86 and 2.6 (and ppc on 2.4).

HTH,
   Max

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Subject: [parisc-linux] [PATCH] parisc: kfree cleanup in arch/parisc/
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Xref: news.gmane.org gmane.linux.ports.parisc:25113


Get rid of redundant NULL pointer checks before kfree() in arch/parisc/ as 
well as a few blank lines.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>

diff -upr linux-2.6.12-rc2-mm3-orig/arch/parisc/kernel/ioctl32.c linux-2.6.12-rc2-mm3/arch/parisc/kernel/ioctl32.c
--- linux-2.6.12-rc2-mm3-orig/arch/parisc/kernel/ioctl32.c	2005-04-05 21:21:08.000000000 +0200
+++ linux-2.6.12-rc2-mm3/arch/parisc/kernel/ioctl32.c	2005-04-11 22:48:03.000000000 +0200
@@ -104,12 +104,9 @@ static int drm32_version(unsigned int fd
 	}
 
 out:
-	if (kversion.name)
-		kfree(kversion.name);
-	if (kversion.date)
-		kfree(kversion.date);
-	if (kversion.desc)
-		kfree(kversion.desc);
+	kfree(kversion.name);
+	kfree(kversion.date);
+	kfree(kversion.desc);
 	return ret;
 }
 
@@ -166,9 +163,7 @@ static int drm32_getsetunique(unsigned i
 			ret = -EFAULT;
 	}
 
-	if (karg.unique != NULL)
-		kfree(karg.unique);
-
+	kfree(karg.unique);
 	return ret;
 }
 
@@ -265,7 +260,6 @@ static int drm32_info_bufs(unsigned int 
 	}
 
 	kfree(karg.list);
-
 	return ret;
 }
 
@@ -305,7 +299,6 @@ static int drm32_free_bufs(unsigned int 
 
 out:
 	kfree(karg.list);
-
 	return ret;
 }
 
@@ -494,15 +487,10 @@ static int drm32_dma(unsigned int fd, un
 	}
 
 out:
-	if (karg.send_indices)
-		kfree(karg.send_indices);
-	if (karg.send_sizes)
-		kfree(karg.send_sizes);
-	if (karg.request_indices)
-		kfree(karg.request_indices);
-	if (karg.request_sizes)
-		kfree(karg.request_sizes);
-
+	kfree(karg.send_indices);
+	kfree(karg.send_sizes);
+	kfree(karg.request_indices);
+	kfree(karg.request_sizes);
 	return ret;
 }
 
@@ -555,9 +543,7 @@ static int drm32_res_ctx(unsigned int fd
 			ret = -EFAULT;
 	}
 
-	if (karg.contexts)
-		kfree(karg.contexts);

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Subject: [parisc-linux] Re: FDDI (defxx) and Linux/PA = HPMC
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On Apr 10, 2005 10:31 PM, Max Grabert <parisc@gmail.com> wrote:
> On Apr 10, 2005 9:20 PM, Max Grabert <parisc@gmail.com> wrote:
> 
> [...]
> 
> > I'm trying to get FDDI working on Linux/PA.
> >
> > So I put a DEFPA card into my c3k (2.6.12-rc2-pa1, 32bit,
> > gcc-3.4, Debian/testing), but it didn't get far:
> 
> Sorry, hat to reply to myself, forgot to attach a 'ser pim' output ...
> 
> Note the driver (defxx.c) is quite old, but is reported to
> work on x86 and 2.6 (and ppc on 2.4).

Well, apparently the report that the driver was working on
ppc is not true. The driver is not big-endian safe.

BTW, the HPMC is caused by drivers/net/defxx.c#527,
which is the initialization routine for EISA cards, which
is executed regardless whether there is EISA support
compiled into the kernel or not. The inl() in there causes
the HPMC.

Attached a patch that adresses at least the obvious big-endian
issues and disables the EISA initialization if CONFIG_EISA
is not defined.
With the patch my c3k boots up, detects the card and it
seems to work, but I can't test it properly right now, since
I don't have a second FDDI card here (yet).

Greetings,
   Max

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From: Max Grabert <parisc@gmail.com>
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Subject: Re: [parisc-linux] 2.6.12-rc3-pa3 usb keyboard and mouse don't respond
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On 5/8/05, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> I tried 2.6.12-rc3-pa3 yesterday but the console keyboard and mouse
> (usb) didn't respond after X came up.  I couldn't see any difference
> in the log files between this version and 2.6.11-pa4.  2.6.11-pa4
> boots ok.  Is this a known problem?

I also discovered that about a week ago, but failed to post a report on=20
the m-l (just mentioned it on IRC). On my c3700 the USB keyboard=20
actually seems to work somewhat (using 2.6.12-rc3-rc2), eg. if I switch=20
to the fbcon; however I can't enter anything in X/xdm, because the text
field is not selected and the USB mouse is not working.

I haven't tried any 64bit kernels lately, so I can't tell whether there
is an issue aswell ...

BTW, 2.6.11-pa4 is also working fine here.


Greetings,
   Max
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On Fri, May 13, 2005 at 01:21:48PM -0400, Daniel Jacobowitz wrote:
> On Fri, May 13, 2005 at 05:38:33PM +0100, Matthew Wilcox wrote:
> > On Fri, May 13, 2005 at 12:17:18PM -0400, Daniel Jacobowitz wrote:
> > > 27319 mmap(NULL, 1073741824, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
> > > 27319 <... mmap resumed> )              = -1 ENOMEM (Cannot allocate memory)
> > > 
> > > Right now I don't think we could even rebuild glibc -21.  The hppa
> > > machines are configured with ulimit -s set to 1GB.  This makes
> > > LinuxThreads use 1GB thread stacks.  Which is, um, pretty bad.
> > 
> > PA machines grow the stack upwards, starting at 0xffffffff - hard
> > stack limit.  glibc never used to pay attention to the stack limit,
> > choosing always to use 4MB stacks (iirc).  When did glibc change that?
> 
> Probably when Carlos added a patch to glibc which defined
> FLOATING_STACKS.  Glibc throttles the size to 8MB if the rlimit is
> infinity, but trusts the rlimit if it is explicitly larger than 8MB.

Ugh.  Can we change the logic there to throttle to 8MB if the rlimit is
larger than 1GB and we're building a 32-bit libc?

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain


-- 
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Xref: news.gmane.org gmane.linux.ports.parisc:25117

Hi folks,,
extract() and implement() are bit field manipulation routines.
They mangle "n" bits starting at "offset" index into the bit field.
Since this is USB, the byte array is little endian.
Big endian machines (e.g. parisc, mips) should only need to
byte swap the value.

extract() and implement() have brain damaged attempts to handle
32-bit wide "fields".
The problem is the index math in the original code didn't clear all
the relevant bits.  (offset >> 5) only compensated for 32-bit index.
We need (offset >> 6) if we want to use 64-bit loads.

But it was also wrong in that it tried to use quasi-aligned loads.
Ie "report" was only incremented in multiples of 4 bytes and then
the offset was masked off for values greater than 4 bytes.
The right way is to pretend "report" points at a byte array.
And offset is then only minor adjustment for < 8 bits of offset.
"n" (field width) can then be as big as 24 (assuming 32-bit loads)
since "offset" will never be bigger than 7.

If someone needs either function to handle more than 24-bits,
please document why - point at a specification or specific USB
hid device - in comments in the code.

extract/implement() are also an eyesore to read.
Please banish whoever wrote it to read CodingStyle 3 times in a row
to a classroom full of 1st graders armed with rubberbands.
Or just flame them. Whatever. Globbing all the code together
on two lines does NOT make it faster and is Just Wrong.

Patch below fixes the above issues. Please apply.

I've tested this patch on j6000 (dual 750Mhz PA-RISC, 32-bit 2.6.12-rc5).
Kyle McMartin tested on c3000 (up 400Mhz PA-RISC, same kernel).
"p2-mate" (Peter De Schrijver?) tested on sb1250 (dual core Mips,
   broadcom "swarm" eval board).

c3000 and j6000 have (lspci output):
0000:00:0e.0 IDE interface: National Semiconductor Corporation 87415/87560 IDE (rev 03)
0000:00:0e.1 Bridge: National Semiconductor Corporation 87560 Legacy I/O (rev 01)
0000:00:0e.2 USB Controller: National Semiconductor Corporation USB Controller (rev 02)

(87560 is also known as "SuckyIO" chip in parisc community)



Couple more general comments that belong in seperate patches:
o get_unaligned() and put_unaligned() are more or less obsolete.
  The kernel misaligned trap handler is expected to handle this
  for every arch that uses "asm-generic/unaligned.h".
  See "fgrep generic include/asm*/unaligned.h" output.

  Don't misunderstand, I prefer to see get_unaligned() but just
  want to point out it's not doing what people might assume it does.

  The networking stack has misaligned accesses that davem/jgarzik
  have refused to fixup with get_aligned() despite well documented
  performance reasons for doing so. So USB is not some odd exception. 

o "static inline" is preferred as per Documentation/SubmittingPatches.
  I'd be happy to submit a patch if someone isn't able
  to run "sed -e 's/__inline__/inline/'" over the code.

thanks,
grant

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Index: drivers/usb/input/hid-core.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/usb/input/hid-core.c,v
retrieving revision 1.21
diff -u -p -r1.21 hid-core.c
--- drivers/usb/input/hid-core.c	22 Apr 2005 00:25:56 -0000	1.21
+++ drivers/usb/input/hid-core.c	2 Jun 2005 06:10:13 -0000
@@ -759,21 +759,31 @@ static __inline__ __u32 s32ton(__s32 val
 }
 
 /*
- * Extract/implement a data field from/to a report.
+ * Extract/implement a data field from/to a little endian report (bit array).
  */
 
 static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
 {
-	report += (offset >> 5) << 2; offset &= 31;
-	return (le64_to_cpu(get_unaligned((__le64*)report)) >> offset) & ((1 << n) - 1);
+	u32 x;
+
+	report += offset >> 3;  /* adjust byte index */
+	offset &= 8 - 1;
+	x = get_unaligned((u32 *) report);
+	x = le32_to_cpu(x);
+	x = (x >> offset) & ((1 << n) - 1);
+	return x;
 }
 
 static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
 {
-	report += (offset >> 5) << 2; offset &= 31;
-	put_unaligned((get_unaligned((__le64*)report)
-		& cpu_to_le64(~((((__u64) 1 << n) - 1) << offset)))
-		| cpu_to_le64((__u64)value << offset), (__le64*)report);
+	u32 x;
+
+	report += offset >> 3;
+	offset &= 8 - 1;
+	x = get_unaligned((u32 *)report);
+	x &= cpu_to_le32(~((((__u32) 1 << n) - 1) << offset));
+	x |= cpu_to_le32(value << offset);
+	put_unaligned(x,(u32 *)report);
 }
 
 /*
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Subject: [parisc-linux] [mingo@elte.hu: [patch] spinlock consolidation, v2]
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Anyone have time to test this out?

----- Forwarded message from Ingo Molnar <mingo@elte.hu> -----

Date:	Fri, 3 Jun 2005 17:40:29 +0200
From:	Ingo Molnar <mingo@elte.hu>
Subject: [patch] spinlock consolidation, v2

the latest version of the spinlock consolidation patch can be found at:

  http://redhat.com/~mingo/spinlock-patches/consolidate-spinlocks.patch

the patch is now complete in the sense that it does everything i wanted 
it to do. If you have any other suggestions (or i have missed to 
incorporate an earlier suggestion of yours), please yell.

Changes:

 - all architectures have been converted to the new spinlock code.
   arm, i386, ia64, ppc, ppc64, s390/s390x, x64 was build-tested via
   crosscompilers. Alpha, m32r, mips, parisc, sh, sparc, sparc64 has
   not been tested yet, but should be mostly fine. x86 and x64 was
   boot-tested in all relevant .config variations. It all brought a nice 
   reduction in source code size:

     62 files changed, 1455 insertions(+), 3025 deletions(-)

   Al, would you be interested in checking this patch on your build 
   farm? It should build on all architectures, UP and SMP alike.

   (NOTE: i've switched sparc32, sparc64, alpha, ppc, parisc to use the 
    generic spinlock debugging code. I believe the generic debugging 
    code is now capable enough to be a replacement - but especially the 
    Sparc ones are pretty advanced; so if i've missed some important
    feature please let me know and i'll implement it in the generic 
    code.)

 - linux/spinlock_types.h: new, pure header file that can be used
   by other headers to define spinlock fields - without having to
   pull in all the other include files that are needed on the
   implementational side. (Roman Zippel)

 - lib/spinlock_debug.c: got rid of the __FILE__/__LINE__ debug output 
   (suggested by Ingo Oeser), and streamlined the debug output. 
   Implemented 'lockup detection' which is a must for architectures that 
   dont have the equivalent of an NMI watchdog. (but is useful on other 
   architectures as well.) Both spinlocks and rwlocks are now fully 
   debugged.

 - linux/spinlock.h: got rid of the ATOMIC_DEC_AND_LOCK cruft. This is 
   achieved by not doing the UP-nonpreempt-nondebug specific 
   optimization but letting it pick the generic _atomic_dec_and_lock 
   function. The assembly looks sane on x86 (no locked ops, etc.) so 
   there's no performance problem. Other architectures should work fine 
   too, those which implement _atomic_dec_and_lock unconditionally might 
   want to review whether they want to use the CONFIG_HAVE_DEC_LOCK 
   mechanism to get the optimized (generic) version of the function on 
   UP.

 - asm-generic/spinlock_types_up.h: further simplifications (suggested
   by Arjan van de Ven), typo fixed

 - linux/spinlock_up.h: since this an UP-nondebug branch now, the macros 
   were simplified and streamlined significantly.

 - asm-generic/spinlock_up.h: further cleanups, reordering of op
   definitions into 'natural' op order.

 - asm-i386/spinlock.h and asm-x86_64/spinlock.h: reordering of ops, 
   cleanups

 - include/linux/spinlock.h: more cleanups, reordering

 - linux/spinlock_smp.h: cleanups, reordering of prototypes

 - kernel/spinlock.c: fixed bug in generic_raw_read_trylock and renamed 
   it to generic__raw_read_trylock to ease conversion.

 - lib/kernel_lock.c: simplification

 - (lots of small details i forgot)

	Ingo

----- End forwarded message -----

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Fri, Jun 03, 2005 at 06:41:55PM -0400, John David Anglin wrote:
> > extract() and implement() have brain damaged attempts to handle
> > 32-bit wide "fields".
> 
> It seems that this problem has been around for some time.

I didn't check to see how long this code has been around.

> Does it fix the usb keyboard and mouse problems in 2.6.12?

USB keyboard and mouse work with 2.6.12-rc5 on parisc.

grant
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To: grundler@parisc-linux.org (Grant Grundler)
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> > It seems that this problem has been around for some time.
> 
> I didn't check to see how long this code has been around.

It's in 2.6.10-pa3.  Since the USB mouse and keyboard work in it,
some other change must have been involved in the 2.6.12 breakage.

As an aside, 2.6.10-pa3 doesn't seem to have the stability problems
that I saw 2.6.11-pa4.  It pretty much seems as stable as 2.6.8.1-pa11
on my c3750.  There was hang in the java testsuite (PR218) in one of
two gcc builds and check.  Otherwise, the test results were identical.

> > Does it fix the usb keyboard and mouse problems in 2.6.12?
> 
> USB keyboard and mouse work with 2.6.12-rc5 on parisc.

Great!

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] usb/input/hid-core.c extract() brain damage
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Cc: parisc-linux@parisc-linux.org,
 linux-usb-devel@lists.sourceforge.net,
 kyle@cabal.ca
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Fri, Jun 03, 2005 at 09:25:18PM -0400, John David Anglin wrote:
> > > It seems that this problem has been around for some time.
> > 
> > I didn't check to see how long this code has been around.
> 
> It's in 2.6.10-pa3.  Since the USB mouse and keyboard work in it,
> some other change must have been involved in the 2.6.12 breakage.

Yes, Kyle tracked it down to parisc switching from a parisc asm
definition of get_unaligned() to using the generic ones.
Ie we moved from avoiding kernel traps to exercising them.
But 64-bit kernel worked fine with USB.
And on 32-bit kernels le64() loads degenerate into two 32-bit
loads. Ie the trap handler is still only dealing with 32-bit
misaligned accesses like it would with this patch. So I don't
think the kernel trap support is the problem.

Regardless, the two functions are badly written and could
be alot clearer.

> As an aside, 2.6.10-pa3 doesn't seem to have the stability problems
> that I saw 2.6.11-pa4.  It pretty much seems as stable as 2.6.8.1-pa11
> on my c3750.  There was hang in the java testsuite (PR218) in one of
> two gcc builds and check.  Otherwise, the test results were identical.

Ok. Can you want to try the older version of include/asm-parisc/unaligned.h?

> > USB keyboard and mouse work with 2.6.12-rc5 on parisc.
> 
> Great!

Well, I haven't committed it to cvs.parisc-linux.org.
I'm waiting for the USB guru's to comment.

grant
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Subject: Re: [parisc-linux] [PATCH] usb/input/hid-core.c extract() brain damage
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Cc: parisc-linux@parisc-linux.org,
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To: grundler@parisc-linux.org (Grant Grundler)
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> extract() and implement() have brain damaged attempts to handle
> 32-bit wide "fields".

It seems that this problem has been around for some time.  Does
it fix the usb keyboard and mouse problems in 2.6.12?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] [PATCH] usb/input/hid-core.c extract() brain damage
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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Grant Grundler wrote:
> On Fri, Jun 03, 2005 at 09:25:18PM -0400, John David Anglin wrote:
> 
>>>>It seems that this problem has been around for some time.
>>>
>>>I didn't check to see how long this code has been around.
>>
>>It's in 2.6.10-pa3.  Since the USB mouse and keyboard work in it,
>>some other change must have been involved in the 2.6.12 breakage.
> 
> 
> Yes, Kyle tracked it down to parisc switching from a parisc asm
> definition of get_unaligned() to using the generic ones.
> Ie we moved from avoiding kernel traps to exercising them.
> But 64-bit kernel worked fine with USB.
> And on 32-bit kernels le64() loads degenerate into two 32-bit
> loads. Ie the trap handler is still only dealing with 32-bit
> misaligned accesses like it would with this patch. So I don't
> think the kernel trap support is the problem.
> 
> Regardless, the two functions are badly written and could
> be alot clearer.
> 
Thanks for feedback ;-)

That said, I also noticed a big difference of behaviour when I select or not the CONFIG_PDC_STABLE option or not:
	o when selected my stress test make panicing my b2k in 5 min showing a cash_grow() pb (as reported before)
	o when not selected the system hang as decribe by jda.

> 
>>As an aside, 2.6.10-pa3 doesn't seem to have the stability problems
Interesting, I will check. Thanks

>>that I saw 2.6.11-pa4.  It pretty much seems as stable as 2.6.8.1-pa11
>>on my c3750.  There was hang in the java testsuite (PR218) in one of
>>two gcc builds and check.  Otherwise, the test results were identical.
> 
> 
> Ok. Can you want to try the older version of include/asm-parisc/unaligned.h?
> 
Interesting, I will too
> 
>>>USB keyboard and mouse work with 2.6.12-rc5 on parisc.
>>
>>Great!
> 
> 
> Well, I haven't committed it to cvs.parisc-linux.org.
> I'm waiting for the USB guru's to comment.
> 
Many thanks,
	Joel
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On Sat, Jun 04, 2005 at 11:06:52AM -0400, Alan Stern wrote:
> In spite of the total overall number of changes required, wouldn't it be 
> much simpler to have a suite of routines (inlines or macros) like:
> 
> 	get_16, put_16, get_le16, put_le16, get_be16, put_be16
> 	get_32, put_32, get_le32, put_le32, get_be32, put_be32
> 	get_64, put_64, get_le64, put_le64, get_be64, put_be64
> 
> 	in short, {get|put}_{|le|be}{16|32|64}

Sorry, no. The architectures that trap on misaligned accesses have to
handle that in the kernel. And even though the implementations
get simpler, a plethoria of interfaces just clutters up the general
device driver API. For that reason alone I wouldn't want it.

The endian conversion (swap) macros are PITA already.
I'll argue the swap API should be simplified to four macros:
	cpu_to_le(x), cpu_to_be(x), le_to_cpu(x), be_to_cpu(x)

and force the caller to cast to the right size. switch(sizeof(x)) would
then select the right arch specific variant. I'll figure out how to
pitch this to linux-arch...and then see how far it gets batted back. :^)

> for native, little-endian, and big-endian unaligned accesses?  The generic 
> definitions are extremely simple and architecture-specific headers could 
> easily provide optimized versions.
> 
> I realize this doesn't fit in very well with the current state of the API, 
> but IMHO it would be a big improvement.

Not really. davem is right that it would clutter up certain parts
of the code (e.g. networking stack).
Don't forget all the above is a NOP on 90% (x86) of the computers.

I'm annoyed that certain performance sensitive paths (e.g. TCP/IP) don't
use macros to access unaligned data. It affects my work (ia64)
and pet (parisc) architectures. But that's how it is and I don't
see it changing anytime in the near future.

thanks for thinking about it,
grant
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On Sat, Jun 04, 2005 at 11:55:03AM +0000, Joel Soete wrote:
...
> Any way it failled to compile very early with following messages:
...
> include2/asm/system.h:174: error: syntax error before "pa_tlb_lock"

It's because of the obscene parisc interdependence between
system.h, bitops.h, and spinlock.h.
Mingo's patch will help break up that a bit better.

I'm working on fixing that up. Two of the commits I made
last night are small steps in that direction.

grant
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Xref: news.gmane.org gmane.linux.ports.parisc:25126

Hello Matthew, Mingo,

Matthew Wilcox wrote:
> Anyone have time to test this out?
> 
> ----- Forwarded message from Ingo Molnar <mingo@elte.hu> -----
> 
> Date:	Fri, 3 Jun 2005 17:40:29 +0200
> From:	Ingo Molnar <mingo@elte.hu>
> Subject: [patch] spinlock consolidation, v2
> 
> the latest version of the spinlock consolidation patch can be found at:
> 
>   http://redhat.com/~mingo/spinlock-patches/consolidate-spinlocks.patch
> 
> the patch is now complete in the sense that it does everything i wanted 
> it to do. If you have any other suggestions (or i have missed to 
> incorporate an earlier suggestion of yours), please yell.
> 
I applied against one of our latest 2.6.12-rc5-pa1 without pb :-)

Any way it failled to compile very early with following messages:
   gcc -Wp,-MD,arch/parisc/kernel/.asm-offsets.s.d  -nostdinc -isystem /usr/lib/gcc-lib/hppa-linux/3.3.5/include -D__KERNEL__ 
-Iinclude -Iinclude2 -I/usr/src/linux-2.6.12-rc5-pa1-050601/include -I/usr/src/linux-2.6.12-rc5-pa1-050601/arch/parisc/kernel 
-Iarch/parisc/kernel -Wall -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -ffreestanding -O2 
-fomit-frame-pointer -pipe -mno-space-regs -mfast-indirect-calls -ffunction-sections -march=1.1 -mschedule=7200 
-DKBUILD_BASENAME=asm_offsets -DKBUILD_MODNAME=asm_offsets -S -o arch/parisc/kernel/asm-offsets.s 
/usr/src/linux-2.6.12-rc5-pa1-050601/arch/parisc/kernel/asm-offsets.c
In file included from include2/asm/bitops.h:5,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/bitops.h:77,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/thread_info.h:20,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/spinlock.h:51,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/arch/parisc/kernel/asm-offsets.c:31:
include2/asm/system.h:174: error: syntax error before "pa_tlb_lock"
include2/asm/system.h:174: warning: type defaults to `int' in declaration of `pa_tlb_lock'
include2/asm/system.h:174: warning: data definition has no type or storage class
In file included from include2/asm/atomic.h:17,
                  from include2/asm/bitops.h:7,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/bitops.h:77,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/thread_info.h:20,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/spinlock.h:51,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/arch/parisc/kernel/asm-offsets.c:31:
include2/asm/spinlock.h:11: error: syntax error before '*' token
include2/asm/spinlock.h:12: warning: function declaration isn't a prototype
include2/asm/spinlock.h: In function `__raw_spin_is_locked':
include2/asm/spinlock.h:13: error: `x' undeclared (first use in this function)
include2/asm/spinlock.h:13: error: (Each undeclared identifier is reported only once
include2/asm/spinlock.h:13: error: for each function it appears in.)
include2/asm/spinlock.h: At top level:
include2/asm/spinlock.h:21: error: syntax error before '*' token
include2/asm/spinlock.h:22: warning: function declaration isn't a prototype
include2/asm/spinlock.h: In function `__raw_spin_lock':
include2/asm/spinlock.h:26: error: `x' undeclared (first use in this function)
include2/asm/spinlock.h: At top level:
include2/asm/spinlock.h:32: error: syntax error before '*' token
include2/asm/spinlock.h:33: warning: function declaration isn't a prototype
include2/asm/spinlock.h: In function `__raw_spin_unlock':
include2/asm/spinlock.h:36: error: `x' undeclared (first use in this function)
include2/asm/spinlock.h: At top level:
include2/asm/spinlock.h:41: error: syntax error before '*' token
include2/asm/spinlock.h:42: warning: function declaration isn't a prototype
include2/asm/spinlock.h: In function `__raw_spin_trylock':
include2/asm/spinlock.h:47: error: `x' undeclared (first use in this function)
include2/asm/spinlock.h: At top level:
include2/asm/spinlock.h:64: error: syntax error before '*' token
include2/asm/spinlock.h:65: warning: function declaration isn't a prototype
include2/asm/spinlock.h: In function `__raw_read_lock':
include2/asm/spinlock.h:68: error: `rw' undeclared (first use in this function)
include2/asm/spinlock.h: At top level:
include2/asm/spinlock.h:76: error: syntax error before '*' token
include2/asm/spinlock.h:77: warning: function declaration isn't a prototype
include2/asm/spinlock.h: In function `__raw_read_unlock':
include2/asm/spinlock.h:80: error: `rw' undeclared (first use in this function)
include2/asm/spinlock.h: At top level:
include2/asm/spinlock.h:97: error: syntax error before '*' token
include2/asm/spinlock.h:98: warning: function declaration isn't a prototype
include2/asm/spinlock.h: In function `__raw_write_lock':
include2/asm/spinlock.h:100: error: `rw' undeclared (first use in this function)
include2/asm/spinlock.h:107: warning: implicit declaration of function `cpu_relax'
include2/asm/spinlock.h: At top level:
include2/asm/spinlock.h:118: error: syntax error before '*' token
include2/asm/spinlock.h:119: warning: function declaration isn't a prototype
include2/asm/spinlock.h: In function `__raw_write_unlock':
include2/asm/spinlock.h:120: error: `rw' undeclared (first use in this function)
include2/asm/spinlock.h: At top level:
include2/asm/spinlock.h:124: error: syntax error before '*' token
include2/asm/spinlock.h:125: warning: function declaration isn't a prototype
include2/asm/spinlock.h: In function `__raw_write_trylock':
include2/asm/spinlock.h:126: error: `rw' undeclared (first use in this function)
include2/asm/spinlock.h: At top level:
include2/asm/spinlock.h:139: error: syntax error before '*' token
include2/asm/spinlock.h:140: warning: function declaration isn't a prototype
include2/asm/spinlock.h: In function `__raw_is_read_locked':
include2/asm/spinlock.h:141: error: `rw' undeclared (first use in this function)
include2/asm/spinlock.h: At top level:
include2/asm/spinlock.h:144: error: syntax error before '*' token
include2/asm/spinlock.h:145: warning: function declaration isn't a prototype
include2/asm/spinlock.h: In function `__raw_is_write_locked':
include2/asm/spinlock.h:146: error: `rw' undeclared (first use in this function)
In file included from include2/asm/bitops.h:7,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/bitops.h:77,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/thread_info.h:20,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/spinlock.h:51,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/arch/parisc/kernel/asm-offsets.c:31:
include2/asm/atomic.h: At top level:
include2/asm/atomic.h:27: error: syntax error before "__atomic_hash"
include2/asm/atomic.h:27: warning: type defaults to `int' in declaration of `__atomic_hash'
include2/asm/atomic.h:27: warning: data definition has no type or storage class
include2/asm/atomic.h: In function `__atomic_add_return':
include2/asm/atomic.h:143: error: `spinlock_t' undeclared (first use in this function)
include2/asm/atomic.h:143: error: `s' undeclared (first use in this function)
include2/asm/atomic.h:143: warning: implicit declaration of function `_raw_spin_lock'
include2/asm/atomic.h:147: warning: implicit declaration of function `_raw_spin_unlock'
include2/asm/atomic.h: In function `atomic_set':
include2/asm/atomic.h:154: error: `spinlock_t' undeclared (first use in this function)
include2/asm/atomic.h:154: error: `s' undeclared (first use in this function)
In file included from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/bitops.h:77,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/thread_info.h:20,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/spinlock.h:51,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/arch/parisc/kernel/asm-offsets.c:31:
include2/asm/bitops.h: In function `set_bit':
include2/asm/bitops.h:45: error: `spinlock_t' undeclared (first use in this function)
include2/asm/bitops.h:45: error: `s' undeclared (first use in this function)
include2/asm/bitops.h: In function `clear_bit':
include2/asm/bitops.h:63: error: `spinlock_t' undeclared (first use in this function)
include2/asm/bitops.h:63: error: `s' undeclared (first use in this function)
include2/asm/bitops.h: In function `change_bit':
include2/asm/bitops.h:81: error: `spinlock_t' undeclared (first use in this function)
include2/asm/bitops.h:81: error: `s' undeclared (first use in this function)
include2/asm/bitops.h: In function `test_and_set_bit':
include2/asm/bitops.h:100: error: `spinlock_t' undeclared (first use in this function)
include2/asm/bitops.h:100: error: `s' undeclared (first use in this function)
include2/asm/bitops.h: In function `test_and_clear_bit':
include2/asm/bitops.h:127: error: `spinlock_t' undeclared (first use in this function)
include2/asm/bitops.h:127: error: `s' undeclared (first use in this function)
include2/asm/bitops.h: In function `test_and_change_bit':
include2/asm/bitops.h:154: error: `spinlock_t' undeclared (first use in this function)
include2/asm/bitops.h:154: error: `s' undeclared (first use in this function)
In file included from include2/asm/thread_info.h:7,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/thread_info.h:21,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/spinlock.h:51,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/arch/parisc/kernel/asm-offsets.c:31:
include2/asm/processor.h: At top level:
include2/asm/processor.h:90: error: syntax error before "spinlock_t"
include2/asm/processor.h:90: warning: no semicolon at end of struct or union
include2/asm/processor.h:102: error: syntax error before '}' token
In file included from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/spinlock.h:79,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.12-rc5-pa1-050601/arch/parisc/kernel/asm-offsets.c:31:
/usr/src/linux-2.6.12-rc5-pa1-050601/include/linux/spinlock_types.h:26: error: `spinlock_t' used prior to declaration
make[2]: *** [arch/parisc/kernel/asm-offsets.s] Error 1
make[1]: *** [arch/parisc/kernel/asm-offsets.s] Error 2
make: *** [vmlinux] Error 2
====<>====

What did I missed?

Thanks,
     Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:25127

[...]
>>
>> Ok. Can you want to try the older version of 
>> include/asm-parisc/unaligned.h?
>>
> Interesting, I will too
> 
Sorry it didn't help for me (on a b180 with kernel 2.6.12-rc5-pa2 and 2.6.8/include/asm-parisc/unaligned.h)
still panicing as usual:
  [<101511b0>] cache_grow+0xd8/0x1a8
  [<10151428>] cache_alloc_refill+0x1a8/0x264
  [<10151744>] kmem_cache_alloc+0x48/0x4c
  [<101b590c>] ext3_alloc_inode+0x18/0x40
  [<10186ae8>] alloc_inode+0x28/0x1a0
  [<1018772c>] new_inode+0x10/0x8c
  [<101aa718>] ext3_new_inode+0xc4/0x73c
  [<101b36b8>] ext3_create+0x8c/0x12c
  [<1017b484>] vfs_create+0xe0/0x140
  [<1017bd54>] open_namei+0x680/0x734
  [<101694bc>] filp_open+0x3c/0x70
  [<101699ac>] sys_open+0x70/0xb8
  [<1010d12c>] syscall_exit+0x0/0x14


Kernel Fault: Code=15 regs=15154600 (Addr=27c944cc)

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001110011100001111 Not tainted
r00-03  00000000 10513e58 101511b0 105004f8
r04-07  17794000 100df6e0 00000010 00000050
r08-11  00000001 15f172bc 17b050dc 00000000
r12-15  15154110 000081a4 0004db4e 000e1bc8
r16-19  000e1c68 00000000 00000000 27c944f8
r20-23  27c944bc 000003dc 000001a5 00000050
r24-27  105004bc 17794000 100df6e0 10400010
r28-31  27c944bc 00000000 15154600 10153a94
sr0-3   00000000 000028a9 00000000 00002635
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10150f30 10150f34
  IIR: 6b800020    ISR: 00000000  IOR: 27c944cc
  CPU:        0   CR30: 15154000 CR31: 10460000
  ORIG_R28: 00000000
  IAOQ[0]: alloc_slabmgmt+0x30/0x6c
  IAOQ[1]: alloc_slabmgmt+0x34/0x6c
  RP(r2): cache_grow+0xd8/0x1a8
Kernel panic - not syncing: Kernel Fault
  <0>Rebooting in 120 seconds..

:_(

Thanks,
	Joel

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From: Alan Stern <stern@rowland.harvard.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [linux-usb-devel] Re: [parisc-linux] [PATCH] usb/input/hid-core.c
	extract() brain damage
Date: Sat, 4 Jun 2005 11:06:52 -0400 (EDT)
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Cc: John David Anglin <dave@hiauly1.hia.nrc.ca>,
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To: Grant Grundler <grundler@parisc-linux.org>
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On Sat, 4 Jun 2005, Grant Grundler wrote:

> Yes, Kyle tracked it down to parisc switching from a parisc asm
> definition of get_unaligned() to using the generic ones.
> Ie we moved from avoiding kernel traps to exercising them.
> But 64-bit kernel worked fine with USB.
> And on 32-bit kernels le64() loads degenerate into two 32-bit
> loads. Ie the trap handler is still only dealing with 32-bit
> misaligned accesses like it would with this patch. So I don't
> think the kernel trap support is the problem.
> 
> Regardless, the two functions are badly written and could
> be alot clearer.

This is a naive question from someone who doesn't know much about the 
various implementations of get_unaligned() and put_unaligned().

In spite of the total overall number of changes required, wouldn't it be 
much simpler to have a suite of routines (inlines or macros) like:

	get_16, put_16, get_le16, put_le16, get_be16, put_be16
	get_32, put_32, get_le32, put_le32, get_be32, put_be32
	get_64, put_64, get_le64, put_le64, get_be64, put_be64

	in short, {get|put}_{|le|be}{16|32|64}

for native, little-endian, and big-endian unaligned accesses?  The generic 
definitions are extremely simple and architecture-specific headers could 
easily provide optimized versions.

I realize this doesn't fit in very well with the current state of the API, 
but IMHO it would be a big improvement.

Alan Stern

_______________________________________________
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From: Alan Stern <stern@rowland.harvard.edu>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [linux-usb-devel] Re: [parisc-linux] [PATCH] usb/input/hid-core.c
	extract() brain damage
Date: Sat, 4 Jun 2005 18:59:53 -0400 (EDT)
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To: Grant Grundler <grundler@parisc-linux.org>
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On Sat, 4 Jun 2005, Grant Grundler wrote:

> On Sat, Jun 04, 2005 at 11:06:52AM -0400, Alan Stern wrote:
> > In spite of the total overall number of changes required, wouldn't it be 
> > much simpler to have a suite of routines (inlines or macros) like:
> > 
> > 	get_16, put_16, get_le16, put_le16, get_be16, put_be16
> > 	get_32, put_32, get_le32, put_le32, get_be32, put_be32
> > 	get_64, put_64, get_le64, put_le64, get_be64, put_be64
> > 
> > 	in short, {get|put}_{|le|be}{16|32|64}
> 
> Sorry, no. The architectures that trap on misaligned accesses have to
> handle that in the kernel. And even though the implementations
> get simpler, a plethoria of interfaces just clutters up the general
> device driver API. For that reason alone I wouldn't want it.
> 
> The endian conversion (swap) macros are PITA already.
> I'll argue the swap API should be simplified to four macros:
> 	cpu_to_le(x), cpu_to_be(x), le_to_cpu(x), be_to_cpu(x)
> 
> and force the caller to cast to the right size. switch(sizeof(x)) would
> then select the right arch specific variant. I'll figure out how to
> pitch this to linux-arch...and then see how far it gets batted back. :^)

I don't really follow your argument.  For example, consider the swap API.  
There's nothing to stop you from defining, in your own code, those four 
macros.  Have them perform the appropriate conversion based on the type of 
x.  You don't have to use the full existing API if you don't want to.


The point I was driving at is that we currently have separate APIs for 
byte swapping and for unaligned access, and it would make a lot of sense 
to combine them into a single API.  Knowing that the bytes have to be 
swapped _and_ that the value isn't aligned correctly should allow us to 
use more efficient code (in some cases) than a simple unaligned access 
followed by a byte swap.

I also don't understand your point about architectures that trap unaligned 
accesses.  Let's put aside for one moment the question of whether it's 
better to manually load the pieces of an unaligned value versus incurring 
the overhead of a trap and a kernel fixup -- the arch-specific code is 
supposed to know which one is better so that programmers don't have to 
worry about it.  Given that unaligned accesses are implemented as traps, 
what's wrong with, for example

#define get_be16(p)	be_to_cpu((u16) get_unaligned((u16 *) (p)))

This is always a valid possibility for the arch-specific implementation of 
get_be16.  Another possibility is

static inline unsigned get_be16(void *p)
{
	u8 *q = (u8 *) p;

	return (((unsigned) q[0]) << 8) + ((unsigned) q[1]);
}

which should in fact be the generic implementation.  It will work 
regardless of whether unaligned accesses are trapped.


Is your main objection simply to the proliferation of access routines?  
It's a valid point, but better too many than too few.  Furthermore it's 
always possible to do as you said, just define get_be() and rely on the 
caller to cast the pointer to the appropriate type.


> > I realize this doesn't fit in very well with the current state of the API, 
> > but IMHO it would be a big improvement.
> 
> Not really. davem is right that it would clutter up certain parts
> of the code (e.g. networking stack).

How so?  I don't think "get_be32(p)" is more clutter-ful than 
"be32_to_cpu(get_unaligned(p))".  It's not even more clutter-ful than
"be32_to_cpu(*p)".  Certainly it's better than

	(p[0] << 24) + (p[1] << 16) + (p[2] << 8) + (p[3])

which occurs more often than I would like.


> Don't forget all the above is a NOP on 90% (x86) of the computers.

So what?  The x86-specific implementation will expand to a NOP.

> I'm annoyed that certain performance sensitive paths (e.g. TCP/IP) don't
> use macros to access unaligned data. It affects my work (ia64)
> and pet (parisc) architectures. But that's how it is and I don't
> see it changing anytime in the near future.

Then where the macros aren't used the code would remain unchanged -- until
someone decides to go in and clean it up.  That has nothing to do with the
question of whether this would be a better way to implement routines for
unaligned access.

Alan Stern

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From: Grant Grundler <grundler@parisc-linux.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [linux-usb-devel] Re: [parisc-linux] [PATCH] usb/input/hid-core.c
	extract() brain damage
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To: Alan Stern <stern@rowland.harvard.edu>
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On Sat, Jun 04, 2005 at 06:59:53PM -0400, Alan Stern wrote:
> The point I was driving at is that we currently have separate APIs for 
> byte swapping and for unaligned access, and it would make a lot of sense 
> to combine them into a single API.  Knowing that the bytes have to be 
> swapped _and_ that the value isn't aligned correctly should allow us to 
> use more efficient code (in some cases) than a simple unaligned access 
> followed by a byte swap.

Ah ok. I missed that, sorry. *Some* architectures might be able
to provide more efficient implementations if they were combined.
But I don't think parisc is one of those. If I'm lucky, someone
will prove me wrong. :^)
Since many of the arches now use asm-generic/unaligned.h, I
can't say which other ones would benefit.

Just avoiding the trap is already a *huge* improvement. I'm alot
less worried about shaving a few cycles of here and there unless
it's really a critical code path (e.g. TLB miss handler or DMA
mapping support).

> I also don't understand your point about architectures that trap unaligned 
> accesses.

Architectures that trap unaligned accesses, *must* handle them.
If they don't, then networking won't work either.
I believe avoiding the trap is a good thing.

>   Let's put aside for one moment the question of whether it's 
> better to manually load the pieces of an unaligned value versus incurring 
> the overhead of a trap and a kernel fixup -- the arch-specific code is 
> supposed to know which one is better so that programmers don't have to 
> worry about it.  Given that unaligned accesses are implemented as traps, 
> what's wrong with, for example
> 
> #define get_be16(p)	be_to_cpu((u16) get_unaligned((u16 *) (p)))
> 
> This is always a valid possibility for the arch-specific implementation of 
> get_be16.  Another possibility is
> 
> static inline unsigned get_be16(void *p)
> {
> 	u8 *q = (u8 *) p;
> 
> 	return (((unsigned) q[0]) << 8) + ((unsigned) q[1]);
> }
> 
> which should in fact be the generic implementation.  It will work 
> regardless of whether unaligned accesses are trapped.

Agreed. But it's definitely suboptimal implementation.
parisc has very nice "helper" operations that allows one to
implement unaligned accesses in two or three (I forget) cycles.
Ie not much more than a regular load.

x86 also takes a 1 cycle penalty for misaligned loads.
parisc just makes that explicit in the asm.

> Is your main objection simply to the proliferation of access routines?  

Yes.

But I'm also trying to make it clear networking folks are trying
to set precedent that unaligned access macros should go away.
That is despite clear evidence of substantial performance improvements
on RISC arches.

> It's a valid point, but better too many than too few.  Furthermore it's 
> always possible to do as you said, just define get_be() and rely on the 
> caller to cast the pointer to the appropriate type.

True, but that's alot more invasive. I suspect the idea of consolidating 
swap macros will not get far for the same reason.

> > Not really. davem is right that it would clutter up certain parts
> > of the code (e.g. networking stack).
> 
> How so?  I don't think "get_be32(p)" is more clutter-ful than 
> "be32_to_cpu(get_unaligned(p))".  It's not even more clutter-ful than
> "be32_to_cpu(*p)".  Certainly it's better than
> 
> 	(p[0] << 24) + (p[1] << 16) + (p[2] << 8) + (p[3])
> 
> which occurs more often than I would like.

Yes, I agree - davem's objection is to the simple use of get_unaligned().

> > Don't forget all the above is a NOP on 90% (x86) of the computers.
> 
> So what?  The x86-specific implementation will expand to a NOP.

That's not the point. The point is 90% of the programmers looking
at the code just get distracted by the extra get_unaligned() call.

> > I'm annoyed that certain performance sensitive paths (e.g. TCP/IP) don't
> > use macros to access unaligned data. It affects my work (ia64)
> > and pet (parisc) architectures. But that's how it is and I don't
> > see it changing anytime in the near future.
> 
> Then where the macros aren't used the code would remain unchanged -- until
> someone decides to go in and clean it up.  That has nothing to do with the
> question of whether this would be a better way to implement routines for
> unaligned access.

Ok. I'm glad to hear someone else doesn't object to unaligned access
macros in general.

FWIW, I'm also 1/4 done (unsigned loads done, signed next, then stores)
with a kernel test module to generate as many variations of unaligned
accesses as possible. I've committed the user space equivalent
to cvs.parisc-linux.org/userspace/unaligned_test.c

Anyway...we are quite far off from my original patch...I've committed
it to the parisc-linux tree since I know it works for both parisc and mips.
It's also alot cleaner than the original code. I hope that finds it's
way into USB code as well unless there is good reason to reject it.

thanks,
grant
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Subject: Re: [parisc-linux] [mingo@elte.hu: [patch] spinlock consolidation, v2]
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Xref: news.gmane.org gmane.linux.ports.parisc:25131

Hello Grant,

Grant Grundler wrote:
> On Sat, Jun 04, 2005 at 11:55:03AM +0000, Joel Soete wrote:
> ...
> 
>>Any way it failled to compile very early with following messages:
> 
> ...
> 
>>include2/asm/system.h:174: error: syntax error before "pa_tlb_lock"
> 
> 
> It's because of the obscene parisc interdependence between
> system.h, bitops.h, and spinlock.h.
> Mingo's patch will help break up that a bit better.
> 
> I'm working on fixing that up. Two of the commits I made
> last night are small steps in that direction.
> 
Much for record: after latest pa3 co (and a make clean), I still get the same error:
   gcc -Wp,-MD,arch/parisc/kernel/.asm-offsets.s.d  -nostdinc -isystem /usr/lib/gcc-lib/hppa-linux/3.3.5/include -D__KERNEL__ 
-Iinclude -Iinclude2 -I/usr/src/linux-2.6.12-rc5-pa3-050604/include -I/usr/src/linux-2.6.12-rc5-pa3-050604/arch/parisc/kernel 
-Iarch/parisc/kernel -Wall -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -ffreestanding -O2 
-fomit-frame-pointer -pipe -mno-space-regs -mfast-indirect-calls -ffunction-sections -march=1.1 -mschedule=7200 
-DKBUILD_BASENAME=asm_offsets -DKBUILD_MODNAME=asm_offsets -S -o arch/parisc/kernel/asm-offsets.s 
/usr/src/linux-2.6.12-rc5-pa3-050604/arch/parisc/kernel/asm-offsets.c
                       ^^^^^^^^^^^^^^
In file included from include2/asm/atomic.h:17,
                  from include2/asm/bitops.h:8,
                  from /usr/src/linux-2.6.12-rc5-pa3-050604/include/linux/bitops.h:77,
                  from /usr/src/linux-2.6.12-rc5-pa3-050604/include/linux/thread_info.h:20,
                  from /usr/src/linux-2.6.12-rc5-pa3-050604/include/linux/spinlock.h:51,
                  from /usr/src/linux-2.6.12-rc5-pa3-050604/include/linux/capability.h:45,
                  from /usr/src/linux-2.6.12-rc5-pa3-050604/include/linux/sched.h:7,
                  from /usr/src/linux-2.6.12-rc5-pa3-050604/arch/parisc/kernel/asm-offsets.c:31:
include2/asm/spinlock.h:11: error: syntax error before '*' token
include2/asm/spinlock.h:12: warning: function declaration isn't a prototype
include2/asm/spinlock.h: In function `__raw_spin_is_locked':
include2/asm/spinlock.h:13: error: `x' undeclared (first use in this function)
[...]

seems that's because spinlock_t (which became raw_spinlock_t and move to asm/spinlock_types.h) was removed from asm-parisc/system.h

Thanks,
	Joel
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On Fri, Jun 03, 2005 at 06:31:32PM +0100, Matthew Wilcox wrote:
> 
> Anyone have time to test this out?
> 
> ----- Forwarded message from Ingo Molnar <mingo@elte.hu> -----
> 
> Date:	Fri, 3 Jun 2005 17:40:29 +0200
> From:	Ingo Molnar <mingo@elte.hu>
> Subject: [patch] spinlock consolidation, v2
> 
> the latest version of the spinlock consolidation patch can be found at:
> 
>   http://redhat.com/~mingo/spinlock-patches/consolidate-spinlocks.patch

I've adapted parisc-linux to this patch and put my changes into
a patch that goes on top of Ingo's.
The patch is parked here:
	ftp://ftp.parisc-linux.org/patches/consolidate-spinlocks-parisc.patch

 arch/parisc/kernel/processor.c  |    3 ++-
 arch/parisc/kernel/smp.c        |   12 ++++++++----
 arch/parisc/lib/bitops.c        |    5 +++--
 include/asm-parisc/atomic.h     |   13 +++++++------
 include/asm-parisc/bitops.h     |    2 +-
 include/asm-parisc/cacheflush.h |    1 +
 include/asm-parisc/processor.h  |    3 ++-
 include/asm-parisc/spinlock.h   |    2 ++

More notes in the patch file.

thanks,
grant
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* Grant Grundler <grundler@parisc-linux.org> wrote:

> > the latest version of the spinlock consolidation patch can be found at:
> > 
> >   http://redhat.com/~mingo/spinlock-patches/consolidate-spinlocks.patch
> 
> I've adapted parisc-linux to this patch and put my changes into
> a patch that goes on top of Ingo's.

i'm wondering, is the conversion to raw_spinlock_t absolutely necessary 
to get a working PARISC kernel? I feel a bit uneasy about using the raw 
spinlocks directly - they were not intended to be used like that, for 
the time being. Right now they are internal types. You should be able to 
use spinlock_types.h just as much to simplify your include file 
dependencies. (as long as you use the spinlock APIs only in .c files)

	Ingo
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On Mon, Jun 06, 2005 at 09:36:27AM +0200, Ingo Molnar wrote:
> > I've adapted parisc-linux to this patch and put my changes into
> > a patch that goes on top of Ingo's.
> 
> i'm wondering, is the conversion to raw_spinlock_t absolutely necessary 
> to get a working PARISC kernel?

No. They were regular spinlocks before too. But there was a pretty
ugly set of interdependencies between asm/system.h, spinlock.h,
atomic.h, and bitops.h.

The cleanup necessary might be alot more baggage than you want
to carry around for this patch.

>  I feel a bit uneasy about using the raw 
> spinlocks directly - they were not intended to be used like that, for 
> the time being. Right now they are internal types.

They are arch specific types (asm/spinlock_types.h) and
I'm only using raw_spinlock_t in arch specific code.

>  You should be able to 
> use spinlock_types.h just as much to simplify your include file 
> dependencies. (as long as you use the spinlock APIs only in .c files)

I'll take another quick look
and see where the circular dependencies are now.

thanks,
grant
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* Grant Grundler <grundler@parisc-linux.org> wrote:

> >  I feel a bit uneasy about using the raw 
> > spinlocks directly - they were not intended to be used like that, for 
> > the time being. Right now they are internal types.
> 
> They are arch specific types (asm/spinlock_types.h) and I'm only using 
> raw_spinlock_t in arch specific code.

please dont use the raw spinlocks. They dont carry some features such as 
debugging. (or any other future feature of the generic spinlock_t type)

	Ingo
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On Mon, Jun 06, 2005 at 06:31:41PM +0200, Ingo Molnar wrote:
> > They are arch specific types (asm/spinlock_types.h) and I'm only using 
> > raw_spinlock_t in arch specific code.
> 
> please dont use the raw spinlocks. They dont carry some features such as 
> debugging. (or any other future feature of the generic spinlock_t type)
> 

TBH, I'd rather not use them. Please look at the -02 patch I just sent
and advise on how you think the cyclic dependency can be killed.
raw spinlocks is obviously just one way.

thanks,
grant
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Subject: Re: [parisc-linux] [PATCH] usb/input/hid-core.c extract() brain damage
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> > Sorry it didn't help for me (on a b180 with kernel 2.6.12-rc5-pa2 and 2.6.8/include/asm-parisc/unaligned.h)
> > still panicing as usual:

It also didn't help the stability issues that I previously reported
for my c3750 although the mouse and keyboard now work with 2.6.12.

> Definitely, the system already hang with 2.6.9-rc2-pa13.
> As it's a b180, I observe leds on front panel:
>     o heart bit always flicking, 
>     o from time to time lan in/out leds flick also,
>     o power on/off button didn't reach to stop the system
>     o after that only toc buttom reach to restart the server (fwiw nothing
> in piminfo?)

Here's a hand copy TOC dump using 2.6.12-rc5-pa1 with Grant's usb
patch:

General registers
0	00000000	409b4480	1018122c	4ce72ac0
4	00000001	0002e4f8	000007d1	4ce72ac0
8	00000000	0002e500	00000001	fffffff2
12	00000000	000e7508	00000000	00000000
16	000eb8e8	00000000	00000001	40918000
20	00000001	00000000	0002e4fe	4ce72ad6
24	00000000	00000001	4d9f7e00	103dc010
28	00000000	00155cc0	40918140	10180fe8

IIA Space	= 00000000
IIA Offset	= 10181300

r2 points to this bit of code in sys_poll:

101810e8 <sys_poll>:
101810e8:       6b c2 3f d9     stw rp,-14(sp)
101810ec:       37 de 01 00     ldo 80(sp),sp
101810f0:       6b cb 3f 31     stw r11,-68(sp)
101810f4:       6b ca 3f 39     stw r10,-64(sp)
...
1018120c:       8d 00 3f 4f     cmpib,<>,n 0,r8,101811b8 <sys_poll+0xd0>
10181210:       08 08 02 44     copy r8,r4
10181214:       08 0a 02 5a     copy r10,r26
10181218:       08 06 02 57     copy r6,r23
1018121c:       08 07 02 59     copy r7,r25
10181220:       37 d8 3f 11     ldo -78(sp),r24
10181224:       eb ff bb 8d     b,l 10180ff0 <do_poll>,%r2
10181228:       34 0b 3f e5     ldi -e,r11
1018122c:       c8 67 20 9a     movb,=,n r7,r3,10181280 <sys_poll+0x198>

IIA Offset points to this bit of code in do_poll:

101810e8 <sys_poll>:
101810e8:       6b c2 3f d9     stw rp,-14(sp)
101810ec:       37 de 01 00     ldo 80(sp),sp
101810f0:       6b cb 3f 31     stw r11,-68(sp)
101810f4:       6b ca 3f 39     stw r10,-64(sp)
...
10181250:       03 c0 08 b3     mfctl tr6,r19
10181254:       0e 78 10 94     ldw c(,r19),r20
10181258:       8e 80 21 38     cmpib,<> 0,r20,101812fc <sys_poll+0x214>
...
101812f0:       4b c3 3f 71     ldw -48(sp),r3
101812f4:       e8 40 d0 00     bve (rp)
101812f8:       37 de 3f 01     ldo -80(sp),sp
101812fc:       0e d5 d2 40     sth r21,0(sr3,r22)
10181300:       e8 1f 1e bf     b,l,n 10181264 <sys_poll+0x17c>,r0
10181304:       e8 1f 1f 35     b,l 101812a4 <sys_poll+0x1bc>,r0
10181308:       34 0b 3f e5     ldi -e,r11
1018130c:       e8 1f 1d a5     b,l 101811e4 <sys_poll+0xfc>,r0
10181310:       08 1c 02 47     copy ret0,r7
10181314:       e8 1f 1c f5     b,l 10181194 <sys_poll+0xac>,r0
10181318:       d4 df 18 01     depwi,z -1,31,31,r6

1018131c <wait_for_partner>:

The system was still pingable, but ssh and the console didn't work.
No heartbeat was observed.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Wed, Jun 08, 2005 at 03:31:14PM +0200, Joel Soete wrote:
> error: structure has no member named `lock'
...
> the pb is this hunk:
> --- linux/include/asm-parisc/processor.h-orig   20 May 2005 00:05:13 -0000
> +++ linux/include/asm-parisc/processor.h        6 Jun 2005 04:32:36 -0000
> @@ -87,7 +88,7 @@ struct cpuinfo_parisc {
>         unsigned long hpa;          /* Host Physical address */
>         unsigned long txn_addr;     /* MMIO addr of EIR or id_eid */
>  #ifdef CONFIG_SMP
> -       spinlock_t lock;            /* synchronization for ipi's */
> +       raw_spinlock_t pending_lock;  /* protect sender/receiver races */
>         unsigned long pending_ipi;  /* bitmap of type ipi_message_type */
>         unsigned long ipi_count;    /* number ipi Interrupts */
>  #endif
> ====<>====

Sorry - my bad. That chunk is not in my source tree.
I've respun the patch without that bit.
See -03 in the same location.

> Freeing unused kernel memory: Badness in smp_call_function at /Develop/linux-2.6.12-rc5-pa3-050606_4Consolidate/arch/parisc/kernel/0
> Backtrace:
>  [<1011604c>] smp_call_function+0x6c/0x384
>  [<10106024>] flush_data_cache+0x24/0x40
...

This is not a real problem. We have a paranoid WARN_ON in the code
and it's been warning us about this one case for a long time now.

> 364k freed
> [...]
> 
> hanging?

What was the last output?

> The analayse of a TOC giving me following info:
> -----------------  Processor 0 TOC Information -------------------
> GR[02] == rp = 0000000010276d7c
> Func: uart_shutdown, Off: 0xbc, Addr: 0x10276d7c
...
> Parse IAOQ = 0x0000000010158b80 for CPU[0]
> Func: synchronize_irq, Off: 0x18, Addr: 0x10158b80


> GR[02] == rp = 0000000010195000
> Func: chrdev_open, Off: 0xe0, Addr: 0x10195000
...
> Parse IAOQ = 0x0000000010104404 for CPU[1]
> Func: lock_kernel, Off: 0x34, Addr: 0x10104404

I'm not sure what the issue is here.
Let me respin the patch so that I know the lock is correctly declared.

grant
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Hi all,

A small update:

John David Anglin wrote:
>>>Sorry it didn't help for me (on a b180 with kernel 2.6.12-rc5-pa2 and 2.6.8/include/asm-parisc/unaligned.h)
>>>still panicing as usual:
> 
> 
> It also didn't help the stability issues that I previously reported
> for my c3750 although the mouse and keyboard now work with 2.6.12.
> 
> 
>>Definitely, the system already hang with 2.6.9-rc2-pa13.
>>As it's a b180, I observe leds on front panel:
>>    o heart bit always flicking, 
>>    o from time to time lan in/out leds flick also,
>>    o power on/off button didn't reach to stop the system
>>    o after that only toc buttom reach to restart the server (fwiw nothing
>>in piminfo?)
OTC 2.6.9-rc2-pa1 works fine (stress test during a full day wihout pb)

:-) : pb didn't come from upstream merge (that reduce also analysis to only some 150k :-) )

[...]

> 
> The system was still pingable, but ssh and the console didn't work.
mmm typical when a system crash: as far as I can observe the nic is only reset when the system reset itself.
So when a system crash, the nic is still configured and icmp trafic (afaik hw level) still respond.

> No heartbeat was observed.
>
That would mean that there is not anymore activity on the system.
Otc of my system where at least some routine (e.g. heartbit) was still running.

Most probably we are facing to different pb.

Thanks,
	Joel
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* Grant Grundler <grundler@parisc-linux.org> wrote:

> IPI and TLB locks can be normal locks.
> I've dropped the parts that changed those.
> 
> New (smaller) patch parked at:
>     ftp://ftp.parisc-linux.org/patches/consolidate-spinlocks-parisc.patch-02

thanks. I'm still wondering about the fundamental question though: why 
doesnt the box boot without your patch? Why does the __atomic_hash and 
the pending_lock have to be converted to a raw_spinlock? This patch does 
not change anything fundamental - you are still getting the same 
spinlock primitives from spinlock_t. The only thing that changes is with 
spinlock debugging: there another (generic) piece of code kicks in. The 
only problem could be with assembly code that 'knows' the layout of the 
spinlocks but doesnt take debugging into account - but is this possible 
in the PARISC case? (Yet another possibility would be if i messed up the 
raw type completely, but then your box wouldnt boot at all.)

so this is still quite much of a mystery to me!

	Ingo
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On Sun, Jun 12, 2005 at 08:49:22AM +0200, Ingo Molnar wrote:
> 
> * Grant Grundler <grundler@parisc-linux.org> wrote:
> 
> > IPI and TLB locks can be normal locks.
> > I've dropped the parts that changed those.
> > 
> > New (smaller) patch parked at:
> >     ftp://ftp.parisc-linux.org/patches/consolidate-spinlocks-parisc.patch-02
> 
> thanks. I'm still wondering about the fundamental question though: why 
> doesnt the box boot without your patch?

Did you mean to ask: Why doesn't the kernel build w/o my patch?

> Why does the __atomic_hash and the pending_lock have to be converted
> to a raw_spinlock?

Only the __atomic_hash is raw_spinlock_t in this last patch (-03).

> This patch does not change anything fundamental

Eh?! Of course your patch does!
It dramatically changes the (nearly) circular dependencies in parisc
kernel header files. I avoid the circular dependency by using
a "raw spinlock" in that one case.

Look at the chain of nested include files in my previous message and
follow the chain and how different consumers of spinlocks are defined
in it.  It should be clear why that lock has to be a raw lock.

>  - you are still getting the same spinlock primitives from spinlock_t.

Yes - but which header files are involved in defining spinlock_t?
And which ones does parisc atomic.h and bitops.h need?

>  The only thing that changes is with 
> spinlock debugging: there another (generic) piece of code kicks in. The 
> only problem could be with assembly code that 'knows' the layout of the 
> spinlocks but doesnt take debugging into account - but is this possible 
> in the PARISC case? (Yet another possibility would be if i messed up the 
> raw type completely, but then your box wouldnt boot at all.)

No - I don't you messed up the raw type. And I personally like that change.
SMP boots and "basically" works fine for me.
(Some other bugs are outstanding and not related to spinlock definitions.)

Debug code is just a distraction. It's not relevant to this problem IMHO.

> so this is still quite much of a mystery to me!

parisc has circular dependencies between system.h, atomic.h, bitops.h,
and spinlock.h in the include/asm-parisc header files.
Why?  Because we only have one atomic operation: LDCW. We use
it to define spinlocks....which are used for atomic-ops
and bitops...I've forgotten the exact dependency now since
I sorted this out about 2 years ago.

But it was the reason I added "raw spinlocks"....you've introduced
"raw_spinlock_t" and that's only complicated the circular dependency
but not eliminated it.

grant
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* Grant Grundler <grundler@parisc-linux.org> wrote:

> > thanks. I'm still wondering about the fundamental question though: why 
> > doesnt the box boot without your patch?
> 
> Did you mean to ask: Why doesn't the kernel build w/o my patch?

ah, ok. If that's the case, then the main problem is that i've added 
#include <asm/atomic.h> to linux/spinlock.h? If you remove that
include from linux/spinlock.h and if you hack atomic_dec_and_lock to not 
use atomic_t but void *, does it build fine?

	Ingo
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On Sun, Jun 12, 2005 at 09:34:53AM +0200, Ingo Molnar wrote:
> 
> * Grant Grundler <grundler@parisc-linux.org> wrote:
> 
> > > thanks. I'm still wondering about the fundamental question though: why 
> > > doesnt the box boot without your patch?
> > 
> > Did you mean to ask: Why doesn't the kernel build w/o my patch?
> 
> ah, ok. If that's the case, then the main problem is that i've added 
> #include <asm/atomic.h> to linux/spinlock.h? 

Hrmm...I'm not sure I'd call that a "problem".
linux/spinlock.h uses atomic_t and following current rules,
it should include some version of atomic.h to get a definition
of atomic_t.

> If you remove that
> include from linux/spinlock.h and if you hack atomic_dec_and_lock to not 
> use atomic_t but void *, does it build fine?

I remove the include but continued to use "atomic_t" anyway.
That built too. :^)

Oh, sorry. I just realized that's still with my patch in place.
Tomorrow I'll back out my patch and see if it still builds.

BTW, I do not like "void *" if we can (and should) use a special typedef.

thanks,
grant
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* Grant Grundler <grundler@parisc-linux.org> wrote:

> > If you remove that
> > include from linux/spinlock.h and if you hack atomic_dec_and_lock to not 
> > use atomic_t but void *, does it build fine?
> 
> I remove the include but continued to use "atomic_t" anyway.
> That built too. :^)
> 
> Oh, sorry. I just realized that's still with my patch in place. 
> Tomorrow I'll back out my patch and see if it still builds.
> 
> BTW, I do not like "void *" if we can (and should) use a special 
> typedef.

yeah, agreed - that was just a quick hack, to see whether the dependency 
problem is sorted out via it. (i'm not sure it will be resolved) I'd 
like to address these dependency problems without having to change any 
spinlock to raw_spinlock.

	Ingo
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On Mon, Jun 13, 2005 at 09:44:07AM +0200, Ingo Molnar wrote:
> > BTW, I do not like "void *" if we can (and should) use a special 
> > typedef.
> 
> yeah, agreed - that was just a quick hack, to see whether the dependency 
> problem is sorted out via it.

Understood - I just don't think it's worth solving this problem generically
by dropping the type checking.  I think this problem is unique to parisc.
No matter how we sliced and dice it, bitops and spinlock will collide
on parisc.

>  (i'm not sure it will be resolved) I'd 
> like to address these dependency problems without having to change any 
> spinlock to raw_spinlock.

I don't want to hold up your patch since I believe it's a step
in the right direction.  I'm ok with changing to a raw_spinlock_t
for bitops.h for now.

Thinking more about circular dependency. It's basically
something like this:
	bitops.h depends on atomic.h for _atomic_spin_lock_irqsave/et al.
	atomic.h depends on spinlock.h for _raw_spin_lock* to
		define _atomic_spin_lock_irqsave/et al.
	linux/spinlock.h now depends on asm/atomic.h for atomic_t
		definition used in _atomic_dec_and_lock().

The next step may to seperate the definition of atomic_t (e.g moving
that to asm/types.h) from the inline code (usage) and function prototypes.
ie have 4 header files:
	spinlock_types.h	/* spinlock_t, SPIN_UNLOCKED, et al */
	spinlocks		/* spin_lock_*() */
	atomic_types.h		/* atomic_t */
	atomic.h		/* _atomic_spin_lock_*(), __xchg(), et al  */

Then linux/spinlock.h can include asm/atomic_types.h to get just the
subset it needs. asm/atomic.h will have to include linux/spinlock.h
then to use regular spinlocks then.  TBH, I don't like the general idea
of an asm/*.h depending on a linux/*.h (atomic.h including spinlock.h
respectively in this case).  But could live with it if you feel strongly
about no one using _raw_spinlocks directly.

thanks,
grant
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Subject: [parisc-linux] List of things that are known no to work on Linux/PA
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Xref: news.gmane.org gmane.linux.ports.parisc:25146

Perhaps this should be put into a Wiki or a FAQ:
(however it could be a pain to maintain it I guess).

Anyway, for whom it might be of interest here it is:


Things that are known to be broken or not yet supported
in the latest (2.6.12-rc6-pa1) linux/PA kernel:

- NTPL is not yet supported (being worked on)
- kernel low-latency/preempt is not yet supported
- 64bit userland is not yet supported
- SMP, expecially on 64bit kernels seems to be rather unstable
- on some machines heavy I/O can cause problems
- XFS used to/is still broken
- ide-cd causes HPMC on cd-rom access; use ide-scsi instead
- Using native XFree86 drivers may cause HPMC, try to use fbdev instead
- Using fbdev with XFree86 causes HPMC on 64bit kernels
- To use onboard sound on B/C/Jxxxx use the snd_ad1889 ALSA driver,
   with OSS Emulation (native ALSA interface seems to have problems)


Please correct me if something has changed recently; I guess some of the PA
kernel hackers (and also users) might want to add a few things to this list=
 ;)

   Max


PS: sorry for cross-posting
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Subject: [parisc-linux] [OT] USB Keyboard on C3600?
Date: Fri, 17 Jun 2005 18:50:59 +0200
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Hi,

i've got a "new" HP9000-C3600, and now i'm wondering if a standard
PC-USB Keyboard should work on this machine. I've got a blank screen,
and the HP is switching to serial console. i think there's a message
like "failed to initialize PCI 2" or something like this appearing in the
Display, but the PDC doesn't display me any errors.

The Primary Console is switched to GRAPHICS(2)/USB, so the serial
Console is probably only a fallback. Should this HP display something on
the screen, even without keyboard?

TIA,

Sven.

PS: Many thanks to you guys for porting linux to HPPA. I'm running
PA/Linux since 2001 on an old 712/60... :)

=2D-=20
Sven Schnelle <sschnelle@astaro.com> | Escalation Engineer
Astaro AG | http://www.astaro.com | Phone +49-721-25516-262 | Fax -200

Documentation: http://docs.astaro.org | Bulletin Board: http://www.astaro.o=
rg

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On Fri, 2005-06-17 at 17:18 +0100, Max Grabert wrote:
> - 64bit userland is not yet supported

Actually, the kernel supports it quite happily.  There's a 64 bit mini
library that will build static ELF64 user binaries that I used to debug
support when I added it.

What's missing is:

- 64 bit gcc that will build DSO's
- 64 bit glibc

James


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On Fri, Jun 17, 2005 at 12:46:07PM -0500, James Bottomley wrote:
> On Fri, 2005-06-17 at 17:18 +0100, Max Grabert wrote:
> > - 64bit userland is not yet supported
> 
> Actually, the kernel supports it quite happily.  There's a 64 bit mini
> library that will build static ELF64 user binaries that I used to debug
> support when I added it.
> 
> What's missing is:
> 
> - 64 bit gcc that will build DSO's
> - 64 bit glibc

I forgot perhaps we should add:

  - Multiple stub sections for the 64-bit linker.

Which will probably be the next project after TLS/NPTL/FUTEX.
Binutils elf64-hppa needs a good cleanup.

c.


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On 6/17/05, Carlos O'Donell <carlos@systemhalted.org> wrote:
> On Fri, Jun 17, 2005 at 12:46:07PM -0500, James Bottomley wrote:
> > On Fri, 2005-06-17 at 17:18 +0100, Max Grabert wrote:
> > > - 64bit userland is not yet supported
> >
> > Actually, the kernel supports it quite happily.  There's a 64 bit mini
> > library that will build static ELF64 user binaries that I used to debug
> > support when I added it.
> >
> > What's missing is:
> >
> > - 64 bit gcc that will build DSO's
> > - 64 bit glibc
>=20
> I forgot perhaps we should add:
>=20
>   - Multiple stub sections for the 64-bit linker.
>=20
> Which will probably be the next project after TLS/NPTL/FUTEX.
> Binutils elf64-hppa needs a good cleanup.

Thank you all (Carlos, James, Kyle etc.) for your input!

I'll add a wiki page in the next couple of days that will
contain a (hopefully regulary updated) list of things that
are "known broken", "being worked on" and
"probably never supported" in the p-l kernel.

   Max
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> > > - 64 bit gcc that will build DSO's

This isn't really an accurate description of what's missing.  GCC
doesn't build DSO's itself.  GCC lacks libtool and various config
files for 64-bit parisc-linux.  However, very little is missing
for C support.

Although GNU ld is somewhat broken, it should be able to build 64-bit
DSO's with the support that's presently there.  That's assuming we
keep the same runtime as hpux (ok, there are some symbol predefines
and elf issues that probably need looking at).

What stops building DSO's at the moment is

/usr/bin/hppa64-linux-ld: crti.o: No such file: No such file or directory

This is a glibc file.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Hello Max,

Btw, may be am i wrong, but afaik for 64bit HUGETLB_PAGE could also be a wished support?

Also ccio and ncr53c8xx (for ncr53c720) are not yet 64bit complient (well not not my d380)

Thanks,
	Joel

Max Grabert wrote:
> On 6/17/05, Carlos O'Donell <carlos@systemhalted.org> wrote:
> 
>>On Fri, Jun 17, 2005 at 12:46:07PM -0500, James Bottomley wrote:
>>
>>>On Fri, 2005-06-17 at 17:18 +0100, Max Grabert wrote:
>>>
>>>>- 64bit userland is not yet supported
>>>
>>>Actually, the kernel supports it quite happily.  There's a 64 bit mini
>>>library that will build static ELF64 user binaries that I used to debug
>>>support when I added it.
>>>
>>>What's missing is:
>>>
>>>- 64 bit gcc that will build DSO's
>>>- 64 bit glibc
>>
>>I forgot perhaps we should add:
>>
>>  - Multiple stub sections for the 64-bit linker.
>>
>>Which will probably be the next project after TLS/NPTL/FUTEX.
>>Binutils elf64-hppa needs a good cleanup.
> 
> 
> Thank you all (Carlos, James, Kyle etc.) for your input!
> 
> I'll add a wiki page in the next couple of days that will
> contain a (hopefully regulary updated) list of things that
> are "known broken", "being worked on" and
> "probably never supported" in the p-l kernel.
> 
>    Max
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
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From: Joel Soete <soete.joel@tiscali.be>
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Subject: [parisc-linux] 2.6.12-pa0 boot fine on my c110 :-)
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Hello *,

As mentioned in title it build and boot fine on my c110 ;-)

No time to test more :-(

But I made a mistake (certainly not 2.6.12 related):
# more /proc/bus/runway/ccio-bitmap

proc_file_read: Apparent buffer overflow!
/Debian-apt/SRC/linux-2.6.12-pa0-050618/mm/memory.c:105: bad pmd 30303020.
/Debian-apt/SRC/linux-2.6.12-pa0-050618/mm/memory.c:105: bad pmd 30303030.
/Debian-apt/SRC/linux-2.6.12-pa0-050618/mm/memory.c:105: bad pmd 30303030.
/Debian-apt/SRC/linux-2.6.12-pa0-050618/mm/memory.c:105: bad pmd 30203030.
/Debian-apt/SRC/linux-2.6.12-pa0-050618/mm/memory.c:105: bad pmd 30302030.
kernel BUG at /Debian-apt/SRC/linux-2.6.12-pa0-050618/mm/mmap.c:1937!
Backtrace:
  [<1015be50>] exit_mmap+0x190/0x1cc
  [<101249c4>] mmput+0x44/0xbc
  [<10129280>] do_exit+0xc0/0x304
  [<10129534>] do_group_exit+0x40/0xcc
  [<10134134>] get_signal_to_deliver+0x4c/0x37c
  [<101113d0>] do_signal+0x5c/0x24c
  [<1010c2b4>] intr_do_signal+0x28/0x30
Kernel panic - not syncing: Kernel Fault

What did I wrong?

Thanks,
	Joel
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On Fri, Jun 17, 2005 at 06:50:59PM +0200, Sven Schnelle wrote:
> i've got a "new" HP9000-C3600, and now i'm wondering if a standard
> PC-USB Keyboard should work on this machine.

Most likely.

>  I've got a blank screen,
> and the HP is switching to serial console. i think there's a message
> like "failed to initialize PCI 2" or something like this appearing in the
> Display, but the PDC doesn't display me any errors.

"PCI 2" is slot 2 where the graphics card is expected to be installed.

> The Primary Console is switched to GRAPHICS(2)/USB, so the serial
> Console is probably only a fallback.

Correct

> Should this HP display something on the screen, even without keyboard?

Probably Yes though I haven't tried this in a while.
It suggested the video doesn't match the monitor.
Plug in the USB keyboard and hit <TAB> key until
something shows up on the monitor.

grant
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* Grant Grundler <grundler@parisc-linux.org> wrote:

> The next step may to seperate the definition of atomic_t (e.g moving
> that to asm/types.h) from the inline code (usage) and function prototypes.
> ie have 4 header files:
> 	spinlock_types.h	/* spinlock_t, SPIN_UNLOCKED, et al */
> 	spinlocks		/* spin_lock_*() */
> 	atomic_types.h		/* atomic_t */
> 	atomic.h		/* _atomic_spin_lock_*(), __xchg(), et al  */
> 
> Then linux/spinlock.h can include asm/atomic_types.h to get just the 
> subset it needs. asm/atomic.h will have to include linux/spinlock.h 
> then to use regular spinlocks then.  TBH, I don't like the general 
> idea of an asm/*.h depending on a linux/*.h (atomic.h including 
> spinlock.h respectively in this case).  But could live with it if you 
> feel strongly about no one using _raw_spinlocks directly.

perhaps we could further simplify things by requiring arch 
spinlock_types.h to include any other types the main spinlock.h needs.  
For most arches that would be a simple #include <asm/atomic.h>, for 
PARISC it would be #include <asm/atomic_types.h>. But i also like the 
idea of splitting up atomic.h into atomic.h and atomic_types.h.

on PARISC, asm/atomic.h would have to include linux/spinlock.h, and i 
dont see that as an ugly thing: your atomic type implementation does 
depend on spinlocks, and spinlocks are defined by the linux/spinlock*.h 
files.

	Ingo
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Kernel Fault: Code=26 regs=0000000047c34720 (Addr=0000000000000001)
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000011001111111000001111 Not tainted
r00-03  0000000000000000 00000000105456f0 00000000101a3494 0000000000000001
r04-07  00000000104b9200 00000000c55ec518 000000006eb29a2d 00000000bd27d428
r08-11  0000000047c344d0 00000000141cc568 000000000000000a 0000000000000000
r12-15  00000000204f0018 000000000000004e 0000000000000001 0000000000000000
r16-19  0000000000000801 000000000004dee8 000000000004dee8 0000000000000000
r20-23  000000000007ffff 00001389e3fff288 00000000140ce5c0 000020dd6eb29a2d
r24-27  0000000047c344c0 0000000047c344d0 00000000bd27d428 00000000104b9200
r28-31  0000000000000000 0000000047c34630 0000000047c34720 00000000405d58c3
sr0-3   0000000000090800 0000000000090800 0000000000000000 0000000000090800
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101b0b70 00000000101b0b58
 IIR: 0c6010d3    ISR: 0000000000000000  IOR: 0000000000000001
 CPU:        0   CR30: 0000000047c34000 CR31: 0000000010480000
 ORIG_R28: 0000000000000001
 IAOQ[0]: __d_lookup+0xc8/0x1a8
 IAOQ[1]: __d_lookup+0xb0/0x1a8
 RP(r2): do_lookup+0x3c/0xf0
Kernel panic: Kernel Fault


-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Sat, Jun 25, 2005 at 04:09:05PM +0100, Matthew Wilcox wrote:
> 
> Kernel Fault: Code=26 regs=0000000047c34720 (Addr=0000000000000001)
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000011001111111000001111 Not tainted
> r00-03  0000000000000000 00000000105456f0 00000000101a3494 0000000000000001


> r04-07  00000000104b9200 00000000c55ec518 000000006eb29a2d 00000000bd27d428
> r08-11  0000000047c344d0 00000000141cc568 000000000000000a 0000000000000000
> r12-15  00000000204f0018 000000000000004e 0000000000000001 0000000000000000
> r16-19  0000000000000801 000000000004dee8 000000000004dee8 0000000000000000
> r20-23  000000000007ffff 00001389e3fff288 00000000140ce5c0 000020dd6eb29a2d
> r24-27  0000000047c344c0 0000000047c344d0 00000000bd27d428 00000000104b9200
> r28-31  0000000000000000 0000000047c34630 0000000047c34720 00000000405d58c3
> sr0-3   0000000000090800 0000000000090800 0000000000000000 0000000000090800
> sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101b0b70 00000000101b0b58
>  IIR: 0c6010d3    ISR: 0000000000000000  IOR: 0000000000000001
>  CPU:        0   CR30: 0000000047c34000 CR31: 0000000010480000
>  ORIG_R28: 0000000000000001
>  IAOQ[0]: __d_lookup+0xc8/0x1a8
>  IAOQ[1]: __d_lookup+0xb0/0x1a8
>  RP(r2): do_lookup+0x3c/0xf0
> Kernel panic: Kernel Fault

I'm not sure what to make of the kernel lookups.
Using build-tools/a.c and the matching System.map-2.6.11-pa4, I get:

GR02 0x101a3494 sys_mprotect+504
IOAQ[0] 0x101b0b70 shmem_getpage+ab0
IOAQ[1] 0x101b0b58 shmem_getpage+a98

Any clue what the "do_lookup" is getting?
Sounds like a bug.

grant
> 
> 
> -- 
> "Next the statesmen will invent cheap lies, putting the blame upon 
> the nation that is attacked, and every man will be glad of those
> conscience-soothing falsities, and will diligently study them, and refuse
> to examine any refutations of them; and thus he will by and by convince 
> himself that the war is just, and will thank God for the better sleep 
> he enjoys after this process of grotesque self-deception." -- Mark Twain
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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changing CONFIG_LOCALVERSION rebuilds too much, for no appearent reason.

Signed-off-by: Olaf Hering <olh@suse.de>

arch/parisc/kernel/asm-offsets.c |    1 -
1 files changed, 1 deletion(-)

Index: linux-2.6.13-rc2-mm1/arch/parisc/kernel/asm-offsets.c
===================================================================
--- linux-2.6.13-rc2-mm1.orig/arch/parisc/kernel/asm-offsets.c
+++ linux-2.6.13-rc2-mm1/arch/parisc/kernel/asm-offsets.c
@@ -30,7 +30,6 @@
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/thread_info.h>
-#include <linux/version.h>
#include <linux/ptrace.h>
#include <linux/hardirq.h>

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From: Christophe Lucas <clucas@rotomalug.org>


---
 pci-dma.c |   30 ++++++++++++++++++++----------
 1 files changed, 20 insertions(+), 10 deletions(-)

Index: quilt/arch/parisc/kernel/pci-dma.c
===================================================================
--- quilt.orig/arch/parisc/kernel/pci-dma.c
+++ quilt/arch/parisc/kernel/pci-dma.c
@@ -333,18 +333,28 @@ pcxl_free_range(unsigned long vaddr, siz
 static int __init
 pcxl_dma_init(void)
 {
-    if (pcxl_dma_start == 0)
-	return 0;
+	if (pcxl_dma_start == 0)
+		return 0;
 
-    spin_lock_init(&pcxl_res_lock);
-    pcxl_res_size = PCXL_DMA_MAP_SIZE >> (PAGE_SHIFT + 3);
-    pcxl_res_hint = 0;
-    pcxl_res_map = (char *)__get_free_pages(GFP_KERNEL,
+	spin_lock_init(&pcxl_res_lock);
+	pcxl_res_size = PCXL_DMA_MAP_SIZE >> (PAGE_SHIFT + 3);
+	pcxl_res_hint = 0;
+	pcxl_res_map = (char *)__get_free_pages(GFP_KERNEL,
 					    get_order(pcxl_res_size));
-    memset(pcxl_res_map, 0, pcxl_res_size);
-    proc_gsc_root = proc_mkdir("gsc", 0);
-    create_proc_info_entry("dino", 0, proc_gsc_root, pcxl_proc_info);
-    return 0;
+	memset(pcxl_res_map, 0, pcxl_res_size);
+	proc_gsc_root = proc_mkdir("gsc", 0);
+	if (!proc_gsc_root)
+    		printk(KERN_WARNING
+			"pcxl_dma_init: Unable to create gsc /proc dir entry\n");
+	else {
+		struct proc_dir_entry* ent;
+		ent = create_proc_info_entry("dino", 0,
+				proc_gsc_root, pcxl_proc_info);
+		if (!ent)
+			printk(KERN_WARNING
+				"pci-dma.c: Unable to create dino /proc entry.\n");
+	}
+	return 0;
 }
 
 __initcall(pcxl_dma_init);

--
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Subject: [parisc-linux] Latest palinux crash
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This seems to be a bit different from most:

Bad Address (null pointer deref?): Code=15 regs=00000000ff8b88f0 (Addr=c000007f80000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001110001000001110 Not tainted
r00-03  0000000000000000 ffffffffffff5000 00000000101728f4 0000000098c54000
r04-07  00000000104b9200 00000000ff956900 00000000fff700e8 00000000ff956910
r08-11  000000000000001a 00000000105435e8 000000000000001b 0000000000200200
r12-15  0000000000100100 00000000ff956930 00000000000000f0 00000000000000ff
r16-19  00000000f00003dc 00000000f000028c 00000000f0002aec 00000000003bd64c
r20-23  ffffffff80000000 00000000eb78ed40 0000000012a06260 0000000000000000
r24-27  000000000000b000 0000000000000002 0000000098c545c0 00000000104b9200
r28-31  0000000000000002 00000000ff8b88c0 00000000ff8b88f0 0000000000000001
sr0-3   0000000000046800 0000000000046800 0000000000000000 0000000000046800
sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101728d4 00000000101728d8
 IIR: 0e9512c0    ISR: 000000003fffff80  IOR: c000007f80000000
 CPU:        0   CR30: 00000000ff8b8000 CR31: 0000000010480000
 ORIG_R28: 00000000104b9200
 IAOQ[0]: free_block+0xac/0x1a0
 IAOQ[1]: free_block+0xb0/0x1a0
 RP(r2): free_block+0xcc/0x1a0
Kernel panic: Bad Address (null pointer deref?)


-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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On Wed, Jul 20, 2005 at 01:22:27PM +0100, Matthew Wilcox wrote:
> 
> This seems to be a bit different from most:
> 
> Bad Address (null pointer deref?): Code=15 regs=00000000ff8b88f0 (Addr=c000007f80000000)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001001110001000001110 Not tainted
> r00-03  0000000000000000 ffffffffffff5000 00000000101728f4 0000000098c54000
> r04-07  00000000104b9200 00000000ff956900 00000000fff700e8 00000000ff956910
> r08-11  000000000000001a 00000000105435e8 000000000000001b 0000000000200200
> r12-15  0000000000100100 00000000ff956930 00000000000000f0 00000000000000ff
> r16-19  00000000f00003dc 00000000f000028c 00000000f0002aec 00000000003bd64c
> r20-23  ffffffff80000000 00000000eb78ed40 0000000012a06260 0000000000000000
> r24-27  000000000000b000 0000000000000002 0000000098c545c0 00000000104b9200
> r28-31  0000000000000002 00000000ff8b88c0 00000000ff8b88f0 0000000000000001
> sr0-3   0000000000046800 0000000000046800 0000000000000000 0000000000046800
> sr4-7   0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000101728d4 00000000101728d8
>  IIR: 0e9512c0    ISR: 000000003fffff80  IOR: c000007f80000000
>  CPU:        0   CR30: 00000000ff8b8000 CR31: 0000000010480000
>  ORIG_R28: 00000000104b9200
>  IAOQ[0]: free_block+0xac/0x1a0
>  IAOQ[1]: free_block+0xb0/0x1a0
>  RP(r2): free_block+0xcc/0x1a0
> Kernel panic: Bad Address (null pointer deref?)

Any context on the workload at the time?
/var/log/* around the time of the crash?

We need better tools for this... I wonder if we still have lkcd support
for hppa.

If we had lkcd support would you be willing to run a modified kernel on
parisc-linux?

c.

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Carlos O'Donell wrote:
> On Wed, Jul 20, 2005 at 01:22:27PM +0100, Matthew Wilcox wrote:
> 
[...]
> 
> We need better tools for this... I wonder if we still have lkcd support
> for hppa.
> 
> If we had lkcd support would you be willing to run a modified kernel on
> parisc-linux?
> 
Afaik unfortunately there wasn't any more support of lkcd on hppa since 2 or 3 years :-(
(iirc Bruno Vidal made this effort in 2.4 but never ported in 2.6 :_( ?

But I totaly agree with you, we would need better tool, specialy when the situation is not clear:
some weeks ago, with jda's help I manage to compile p-l kernel with gcc-4.0 and some fpr constraint.
This kernel seems to be very more stable (passed with success some stress test of mine during severall days when it would crash in 
few ours or less when compile with gcc-3.3).
But I also tried to rebuild gcc-4.1 to just reproduce the pb encountered by jda in a c++ test:
efectively, the kernel 'hang' or 'freeze' during this test and it's hard to guess what's hapening;
no more network responds (no ping, no ssh, ...), no more console responds, ...
but pressing TOC button launched well a panic, and unfortunately pim analisys didn't help at all :-?
(fyi: <http://lists.parisc-linux.org/pipermail/parisc-linux/2005-July/026855.html>)

So am I also looking for way to help: lkcd? instrumenting the kernel like kprobes/dprobes? (but not yet hppa support)
Unfortunately, I definetily don't have deep enough knowledge of linux kernel to help more, sorry.

Thanks,
	Joel
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On Thu, Jul 21, 2005 at 12:36:27AM -0400, Carlos O'Donell wrote:
> We need better tools for this... I wonder if we still have lkcd support
> for hppa.

I have the "most recent" (2.4.20) patch from Bruno Vidal 
and he had it working on most of the platforms (32 and 64-bit).
It didn't get included becuase of (my) lack of time to integrate
and the fact that it wasn't popular at the time. I'm really
happy to see that's changed.

Bruno, is that posted someplace publicly or can I post it?
(I'm hoping Bruno is still subscribed to p-l)

> If we had lkcd support would you be willing to run a modified kernel on
> parisc-linux?

I would.
In fact, I'd change all the default config files to include it.

thanks,
grant
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On Thu, Jul 21, 2005 at 11:34:22AM +0000, Joel Soete wrote:
> This kernel seems to be very more stable (passed with success some stress 
> test of mine during severall days when it would crash in few ours or less 
> when compile with gcc-3.3).

Joel,
This is good news. Thanks for trying this out.

> ...
> but pressing TOC button launched well a panic, and unfortunately pim 
> analisys didn't help at all :-?
> (fyi: 
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2005-July/026855.html>)

In 026855.html you wrote you didn't save the System.map.

> So am I also looking for way to help: lkcd? instrumenting the kernel like 
> kprobes/dprobes? (but not yet hppa support)

kprobes will need more support for runtime patching of the code.
It's not trivial to do that given the VIVT caches on parisc.
It's certainly possible though since I know HPUX does that.
But it also means changing the kernel text to RW or using
absolute stores/icache flushing to modified the kernel instructions.


> Unfortunately, I definetily don't have deep enough knowledge of linux 
> kernel to help more, sorry.

I only know enough to be dangerous to be people who know less. :^)

grant
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Subject: Re: [parisc-linux] Latest palinux crash
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Grant Grundler wrote:
> On Thu, Jul 21, 2005 at 11:34:22AM +0000, Joel Soete wrote:
> 
>>This kernel seems to be very more stable (passed with success some stress 
>>test of mine during severall days when it would crash in few ours or less 
>>when compile with gcc-3.3).
> 
> 
> Joel,
> This is good news. Thanks for trying this out.
> 
> 
>>...
>>but pressing TOC button launched well a panic, and unfortunately pim 
>>analisys didn't help at all :-?
>>(fyi: 
>><http://lists.parisc-linux.org/pipermail/parisc-linux/2005-July/026855.html>)
> 
> 
> In 026855.html you wrote you didn't save the System.map.
> 
Yes my script analysis is based on the famous dump_analyser.sh so still grab the label into System.map
but insn match well the address ;-) (today I learn more about addr2line and thought that it would help to get rid of this pb :-)

> 
>>So am I also looking for way to help: lkcd? instrumenting the kernel like 
>>kprobes/dprobes? (but not yet hppa support)
> 
> 
> kprobes will need more support for runtime patching of the code.
> It's not trivial to do that given the VIVT caches on parisc.
(Sorry: VIVT?)

> It's certainly possible though since I know HPUX does that.
> But it also means changing the kernel text to RW or using
> absolute stores/icache flushing to modified the kernel instructions.
> 
well so not sure that kprobe was already for p-l but I find this paper
<http://www-128.ibm.com/developerworks/linux/library/l-graphvis/> on gcc fnct instrumentation very attractive
and looking for something like this for the kernel: in paper the link to kprobes is dead but resent me to dprobes on sf.net?

> 
> 
>>Unfortunately, I definetily don't have deep enough knowledge of linux 
>>kernel to help more, sorry.
> 
> 
> I only know enough to be dangerous to be people who know less. :^)
> 
> grant
> 
Thanks,
	Joel
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Subject: Re: [parisc-linux] Latest palinux crash
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> just a small note, iirc Bruno's patch also used -ggdb compile option which grow dramaticaly the kernel size.
> But may be not not absolutely necessary?

The option adds debug symbols but they all should be in no-load sections
(i.e., the option shouldn't change the code and data sections at all).
If you are going to use gdb to debug the kernel, I recommend building
with -O1 instead of -O2.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Thu, Jul 21, 2005 at 07:48:23PM +0000, Joel Soete wrote:
> >kprobes will need more support for runtime patching of the code.
> >It's not trivial to do that given the VIVT caches on parisc.
> (Sorry: VIVT?)

Virtually Indexed, Virtually Tagged

grant

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Grant Grundler wrote:
> On Thu, Jul 21, 2005 at 12:36:27AM -0400, Carlos O'Donell wrote:
> 
[...]
> 
> I would.
> In fact, I'd change all the default config files to include it.
> 
Grant,

just a small note, iirc Bruno's patch also used -ggdb compile option which grow dramaticaly the kernel size.
But may be not not absolutely necessary?

Joel
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John David Anglin wrote:
>>just a small note, iirc Bruno's patch also used -ggdb compile option which grow dramaticaly the kernel size.
>>But may be not not absolutely necessary?
> 
> 
> The option adds debug symbols but they all should be in no-load sections
> (i.e., the option shouldn't change the code and data sections at all).
cool ;-)

> If you are going to use gdb to debug the kernel,
I though that was the goal: grab a coredump to trace it back?
(but I could never experiment it because of it's so big size: iirc about 60Mb for the 2.4 and this time my dump (swap) area was too 
small to host the coredump image, now it could be just large enough ;)

> I recommend building
> with -O1 instead of -O2.
> 
mmm could it not be too much invasive?
I mean we are going to change completely the insn flow and btw the time diagram as I experiment:
some weeks ago, I was working on ccio-dma for 64bit kernel on a d380 on which I noticed a dramtic slow down of the boot (more then 
an hour in place of 5 min for its 32bit twin).
I would so first check the reserved IO addresses by some printk but there are so much that I could never get a login prompt (even 
after a long night)?
I so tried to get the only 100 first ones but the kernel still slow down at the same place.
So I so tried to grab the next 200 ones: by miracle it boot near normaly (just slow down by some printk?
(I so presume that there is some race case in this driver, the computed IO adresses wouldn't have to change because I asked to print 
it?)
But I changed the time diagram and btw the kernel behaviour, though?

May be in a second stage, when we would have located the hang place with -O2?

Thanks,
	Joel

PS: I will check that when I will be back from holidays in 15 days ;-)


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> (but I could never experiment it because of it's so big size: iirc about 60Mb for the 2.4 and this time my dump (swap) area was too 

That doesn't make sense.  The addition of debug info shouldn't change
the size of a core dump.  It's the code and data needed to actual do
the dump that increases the kernel size.

> > I recommend building
> > with -O1 instead of -O2.
> > 
> mmm could it not be too much invasive?

I don't think so.  Optimization shouldn't change code behavior.  While
it's true that a change in execution speed might break some realtime
code, if this happens in linux, it's probably a bug.

> I mean we are going to change completely the insn flow and btw the time diagram as I experiment:
> some weeks ago, I was working on ccio-dma for 64bit kernel on a d380 on which I noticed a dramtic slow down of the boot (more then 
> an hour in place of 5 min for its 32bit twin).

In most cases, there's only a small change in execution speed and sometimes
-O1 is faster.  The above change is abnormally large and suggests that a
major chunk of code is being optimized away.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> On Thu, Jul 21, 2005 at 12:36:27AM -0400, Carlos O'Donell wrote:
> > We need better tools for this... I wonder if we still have lkcd suppo=
rt
> > for hppa.
> 
> I have the "most recent" (2.4.20) patch from Bruno Vidal 
btw is it most recent then stuff available:
<http://ftp.parisc-linux.org/patches>
dump_modules-2.4.20-pa32.patch.gz && crashtools.tar.gz

Thanks,
    Joel=0A=0A-------------------------------------------------------=0AN=
OTE! My email address is changing to ... @scarlet.be=0APlease make the ne=
cessary changes in your address book. =0A=0A

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Subject: [parisc-linux] New debian libc6 2.3.5: glibc bug or kernel bug???
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Hello all,

As many other reported, I encountered some pb with the recent upgrade of
debian unstable glibc.

Back from some kind holidays, I first tried to rebuild the recent cvs ker=
nel
2.6.13.

On my own c110, while I launched the 'make oldconfig', I noticed this abn=
ormal
(afaik user space wouldn't cause) panic with my custom kernel:
 kernel BUG at mm/mmap.c:????
Backtrace:
[<1015c5e8>] exit_mmap+0x1b8/0x1d8
[<10126614>] mmput+0x44/0xbc
[<1012a928>] do_exit+0xd4/0xa04
[<1012b2bc>] do_group_exit+0x64/0xcc
[<1010d12c>] syscall_exit+0x0/0x14

Kernel panic - not syncing: BUG!

Back to the office, on a d380 running a 2.6.12-pa1 (32bit up), I encounte=
red
the same kind of panic:

kernel BUG at /usr/src/linux-2.6.12-pa1-050620/mm/mmap.c:1937!
Backtrace:
 [<1015d510>] exit_mmap+0x190/0x1cc
 [<101249c4>] mmput+0x44/0xbc
 [<101292ec>] do_exit+0xc0/0x304
 [<101295a0>] do_group_exit+0x40/0xcc
 [<1010d12c>] syscall_exit+0x0/0x14

(fwiw no cpu status dump :-(  in the 2 case)

But I got very different results with other kernels:
    o on c110 with 2.6.8.1-pa7 the same 'make' did a 'Segmentation fault'=

    o on d380 with 2.6.10-pa11 (32bit up) the same 'Segmentation fault'
any way what is very weird:
    o on b2k with 2.6.11.12-pa4 (32bit gcc-4.0) no pb??? (I can update my=

system smoothly and rebuild the 2.6.13-rc6-pa1 without any pb with libc6
2.3.5-3). (btw boot fine on this system but panicing when 'make menuconfi=
g' too)

Any idea?

Thanks,
    Joel

ps: all system above mentioned are all unstable debian install today
dist-upgraded.




=0A=0A-------------------------------------------------------=0ANOTE! My =
email address is changing to ... @scarlet.be=0APlease make the necessary =
changes in your address book. =0A=0A

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Looking for a company with some good news?  Here's one!

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+++++++++++++++++++++++++++++++++++++++++++++++
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+++++++++++++++++++++++++++++++++++++++++++++++


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1 WEEK PROJECTION .75

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M-Wise Announces New European License of Content Management and Delivery Platform
Thursday August 4, 8:49 am ET
MobilityZone Will Use Platform to Provide Java Games to Customers of a Leading European Operator

WILMINGTON, Del., Aug, 2005 (PRIMEZONE) -- M-Wise, Inc. (OTC BB:MWIS.OB - News),
a leading technology provider of mobile content solutions for operators, ASPs
and content providers, today announced that its MOMA platform has been selected
by MobilityZone for content management and delivery. MobilityZone, based in Israel,
develops, produces and maintains one of the largest, up-to-date catalogs of licensed
content from all of the major publishing companies and other top producers.
Recently, MobilityZone secured a deal with a leading European mobile operator
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We selected the MOMA content delivery platform because of its ability to effectively handle
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A study from The ARC Group, specializing in providing worldwide technology
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The firm also forecasted that the global market for ring tones will grow to $5.2 billion
in 2006 and gaming will reach $8.3 billion in 2008, an increase from $2.4 billion in 2004.

Last time we issued a Investor Alert and watched it climb from $2.00 to
$8.00 faster than you can count the ways to spend your money.
Now MWIS is on the on the move.
We urge you to keep a WATCH on (MWIS) on Thursday.







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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [parisc-linux] New debian libc6 2.3.5: glibc bug or kernel bug???
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On Thu, Aug 11, 2005 at 11:25:53AM +0200, Joel Soete wrote:
>  kernel BUG at mm/mmap.c:????
> Backtrace:
> [<1015c5e8>] exit_mmap+0x1b8/0x1d8
> [<10126614>] mmput+0x44/0xbc
> [<1012a928>] do_exit+0xd4/0xa04
> [<1012b2bc>] do_group_exit+0x64/0xcc
> [<1010d12c>] syscall_exit+0x0/0x14
> 
> Kernel panic - not syncing: BUG!
> 

I can confirm this, my C3000 panicked during `make oldconfig' though
I didn't think it was running unstable, nor did I get a backtrace, though
it seems syslogd may have gotten it.

Cheers,
-- 
Kyle McMartin
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Subject: [parisc-linux] 712/60 LAN not working after kernel update to 2.6
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Hello ,

As a lot of hppa users - I guess- I'm using an older 712/60 workstation.
In the past I installed Debian hppa on it , and it worked fine with the
2.4 kernel series.
Now, a few days ago  I finally upgraded the box to kernel 2.6, and the
machine boots. Which is already a start :)

But, after the kernel upgrade, the builtin network card doesn't work
anymore.

After doing an ifup it's complaining that he couldn't find the device:
'eth0: ERROR while getting interface flangs: No such device'


When I check the devices in the box , I can see that the kernel found
the network card:

--
Found devices:
..
4.  Gecko Core LAN (802.3) at 0xf0107000
--

Can somebody help me with this issue?


Bart

























--
DHL Aviation Webmail 
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On Sat, Aug 13, 2005 at 04:08:59PM +0100, Schelstraete Bart wrote:
> Hello ,
> 
> As a lot of hppa users - I guess- I'm using an older 712/60 workstation.
> In the past I installed Debian hppa on it , and it worked fine with the
> 2.4 kernel series.
> Now, a few days ago  I finally upgraded the box to kernel 2.6, and the
> machine boots. Which is already a start :)

Bart,
If you have to post the same thing to both debian-hppa and parisc-linux,
do it using "cc" so folks know it's on both lists.

I've replied to your debian-hppa posting.

grant
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From: "Jools Smyth" <jools@oxfordinspire.co.uk>
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Subject: [parisc-linux] HP 9000 a180c fan problem
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Hi,

This is a bit offtopic sorry. I have a problem with my a180c which someone
might be able to help with. I was fiddling with it and powered it on with
1 less fan running. I didn't know it had detection code, and it threw up
an error, and then powered off. I plugged the fan back in, but it's still
throwing up the fan error. It must have set some flag somewhere in flash
?!? I removed the battery, but it still is reporting the error.

The error is "Warning! Fan failure has been detected, the system will be
powering down. please call a service respresentative)

Any secret key to press on the remote console to reset the thing ? or some
jumper ?

My worry is it's written something to flash memory, which has made the
machine permanently useless... :(

Best Regards

Jools

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From: Joel Soete <soete.joel@tiscali.be>
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Subject: Re: [parisc-linux] Latest palinux crash
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Hello Grant,


Grant Grundler wrote:
> On Thu, Jul 21, 2005 at 12:36:27AM -0400, Carlos O'Donell wrote:
> 
>>We need better tools for this... I wonder if we still have lkcd support
>>for hppa.
> 
> 
> I have the "most recent" (2.4.20) patch from Bruno Vidal 
> and he had it working on most of the platforms (32 and 64-bit).
> It didn't get included becuase of (my) lack of time to integrate
> and the fact that it wasn't popular at the time. I'm really
> happy to see that's changed.
> 
> Bruno, is that posted someplace publicly or can I post it?
> (I'm hoping Bruno is still subscribed to p-l)
> 
No news?

> 
>>If we had lkcd support would you be willing to run a modified kernel on
>>parisc-linux?
> 
> 
> I would.
> In fact, I'd change all the default config files to include it.
> 
Do you have more recent stuff then what is available in ftp.p-l.org?

Thanks,
     Joel

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On Mon, Aug 15, 2005 at 02:40:45PM +0000, Joel Soete wrote:
> >I have the "most recent" (2.4.20) patch from Bruno Vidal 
> >and he had it working on most of the platforms (32 and 64-bit).
> >It didn't get included becuase of (my) lack of time to integrate
> >and the fact that it wasn't popular at the time. I'm really
> >happy to see that's changed.
> >
> >Bruno, is that posted someplace publicly or can I post it?
> >(I'm hoping Bruno is still subscribed to p-l)
>
> No news?

Is this the right patch?
	ftp.parisc-linux.org:patches/dump_modules-2.4.20-pa32.patch.gz

-rw-r--r--  1 tausq cvsusers 42166 Apr  8  2003 dump_modules-2.4.20-pa32.patch.z

> Do you have more recent stuff then what is available in ftp.p-l.org?

sorry - If I do, I'm not sure where.

grant
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> On Mon, Aug 15, 2005 at 02:40:45PM +0000, Joel Soete wrote:
> > >I have the "most recent" (2.4.20) patch from Bruno Vidal 
     ^^^ just make me thought you have something newest ;-)

> > >and he had it working on most of the platforms (32 and 64-bit).
> > >It didn't get included becuase of (my) lack of time to integrate
> > >and the fact that it wasn't popular at the time. I'm really
> > >happy to see that's changed.
> > >
> > >Bruno, is that posted someplace publicly or can I post it?
> > >(I'm hoping Bruno is still subscribed to p-l)
> >
> > No news?
> 
> Is this the right patch?
> 	ftp.parisc-linux.org:patches/dump_modules-2.4.20-pa32.patch.gz
> 
> -rw-r--r--  1 tausq cvsusers 42166 Apr  8  2003 dump_modules-2.4.20-pa3=
2.patch.z

Yes and the associated crashtools.tar.gz  :-)

> 
> > Do you have more recent stuff then what is available in ftp.p-l.org?
> 
> sorry - If I do, I'm not sure where.
> 
No pb just want to be sure to start work on good basis :-)

Thanks,
    Joel=0A=0A-----------------------------------------------------------=
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Disclaimer:
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John David Anglin wrote:
>>(but I could never experiment it because of it's so big size: iirc about 60Mb for the 2.4 and this time my dump (swap) area was too 
> 
> 
> That doesn't make sense.  The addition of debug info shouldn't change
> the size of a core dump.  It's the code and data needed to actual do
> the dump that increases the kernel size.
> 
Ah sorry for confusion but the two things are not related and not related to coredump size:
	o first the executable vmlinux was very big
	  (as plao doesn't yet support a compressed vmlinuz it was
	   hard to find a place at this time to copy it to an easy
	   access path /boot a dedicated slice of only 30Mb
	   but now increased to 128 for this reason ;-)
	o oth the ram of the system 2Gb (N4k) and only 256Mb of swap
	  also used to dump the kernel core; even thought linux didn't
	  use the all ram but well regualry about 1.4Gb
	  (or I would have to sacrify another fs?)

> 
>>>I recommend building
>>>with -O1 instead of -O2.
>>>
>>
>>mmm could it not be too much invasive?
> 
> 
> I don't think so.  Optimization shouldn't change code behavior. While
Agreed.

> it's true that a change in execution speed might break some realtime
> code, if this happens in linux, it's probably a bug.
> 
> 
>>I mean we are going to change completely the insn flow and btw the time diagram as I experiment:
>>some weeks ago, I was working on ccio-dma for 64bit kernel on a d380 on which I noticed a dramtic slow down of the boot (more then 
>>an hour in place of 5 min for its 32bit twin).
> 
> 
> In most cases, there's only a small change in execution speed and sometimes
> -O1 is faster.  The above change is abnormally large and suggests that a
> major chunk of code is being optimized away.

Ah also, I missed but I doubt in this case: just change a const determining the number of printk change the behaviour, though.

> 
> Dave

Thanks,
	Joel
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On Aug 24, 2005, at 12:14 PM, Matthew Wilcox wrote:

> On Wed, Aug 24, 2005 at 11:55:30AM -0500, Kumar Gala wrote:
>
>> Removed asm-parisc/segment.h as its not used by anything.
>>
>
> Did you already remove all the uses outside the parisc-specific  
> bits of
> the tree, eg ISDN, media/video/, sound/oss/, etc?
>
> If so, ACK, otherwise, NAK.

I did remove them.  I should have included a reference to the patch  
that did this:

http://www.ussg.iu.edu/hypermail/linux/kernel/0508.3/0099.html

- kumar


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Those watching the CVS list will see that I've renovated some code to
improve K-class support.  On Thursday, I tracked down the SMP hang when
initialising the Mux serial driver (it was a missing spin_lock_init()).
Today, I rewrote some of the driver probing so we allocate iomem resources
sufficiently early that the fancy code I wrote to avoid allocating PCI
iomem resources over the top of other devices actually works ;-)

I also updated the defconfig to include support for the Mux console so
when 2.6.13-pa2 appears on http://cvs.parisc-linux.org/download/linux-2.6/
it should work.  I'd appreciate it if people with a K-class could test
this assumption ;-)  The E-class should also work (as well as it ever
has ... still no Wizard SCSI support).

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Subject: [parisc-linux] Please fix the OPL mess
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I'm not entirely sure which of our intrepid sound hackers introduced
this problem, but it's a PITA when trying to build a suitable kernel for
ia64 boxes out of the parisc tree, and I suspect for C8000 too.  Could
somebody fix it?

  CC      sound/drivers/opl3/opl3_lib.o
sound/drivers/opl3/opl3_lib.c: In function `snd_opl3_free':
sound/drivers/opl3/opl3_lib.c:336: error: structure has no member named `unmap_on_free'
sound/drivers/opl3/opl3_lib.c: In function `snd_opl3_create_main':
sound/drivers/opl3/opl3_lib.c:421: error: structure has no member named `unmap_on_free'

Easiest way to reproduce the error is probably to enable the FM801
driver, but obviously this library is used by a lot of drivers.

Thanks
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Subject: [parisc-linux] [RFC] parisc sys_ptrace prototype
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Xref: news.gmane.org gmane.linux.ports.parisc:25187

parisc has a different prototype for ptrace in that it passes the
pid as pid_t, not as long.  This doesn't matter on 32bit architectures
because both are 32bit, but it's different for 64bit kernel.

OTOH I've heard 64bit parisc userland is mostly non-existant so maybe
we could still fix this, greatly simplifying a later ptrace
consolidation.


Signed-off-by: Christoph Hellwig <hch@lst.de>

Index: linux-2.6/arch/parisc/kernel/ptrace.c
===================================================================
--- linux-2.6.orig/arch/parisc/kernel/ptrace.c	2005-09-18 13:46:52.000000000 +0200
+++ linux-2.6/arch/parisc/kernel/ptrace.c	2005-09-19 22:37:07.000000000 +0200
@@ -78,7 +78,7 @@
 	pa_psw(child)->l = 0;
 }
 
-long sys_ptrace(long request, pid_t pid, long addr, long data)
+long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	long ret;
Index: linux-2.6/include/asm-parisc/unistd.h
===================================================================
--- linux-2.6.orig/include/asm-parisc/unistd.h	2005-09-18 13:47:39.000000000 +0200
+++ linux-2.6/include/asm-parisc/unistd.h	2005-09-19 22:37:22.000000000 +0200
@@ -1005,7 +1005,7 @@
 		struct pt_regs *regs);
 int sys_vfork(struct pt_regs *regs);
 int sys_pipe(int *fildes);
-long sys_ptrace(long request, pid_t pid, long addr, long data);
+long sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
 				const struct sigaction __user *act,
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Xref: news.gmane.org gmane.linux.ports.parisc:25188

the lock_kernel could probably go away aswell, but I'll rather leave
that to the parisc experts..


Signed-off-by: Christoph Hellwig <hch@lst.de>

Index: linux-2.6/arch/parisc/kernel/perf.c
===================================================================
--- linux-2.6.orig/arch/parisc/kernel/perf.c	2005-09-19 17:41:31.000000000 +0200
+++ linux-2.6/arch/parisc/kernel/perf.c	2005-09-19 17:41:42.000000000 +0200
@@ -438,48 +438,56 @@
  * must be running on the processor that you wish to change.
  */
 
-static int perf_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
+static long perf_ioctl(struct file *file, unsigned int cmd,
 	unsigned long arg)
 {
 	long error_start;
-	uint32_t raddr[4];	
+	uint32_t raddr[4];
+	int error = 0;
 
+	lock_kernel();
 	switch (cmd) {
 
 	    case PA_PERF_ON:
 			/* Start the counters */
 			perf_start_counters();
-			return 0;
+			break;
 
 	    case PA_PERF_OFF:
 			error_start = perf_stop_counters(raddr);
 			if (error_start != 0) {
 				printk(KERN_ERR "perf_off: perf_stop_counters = %ld\n", error_start);
-				return -EFAULT;	
+				error = -EFAULT;
+				break;
 			}
 
 			/* copy out the Counters */
 			if (copy_to_user((void __user *)arg, raddr, 
 					sizeof (raddr)) != 0) {
-				return -EFAULT;
+				error =  -EFAULT;
+				break;
 			}
-			return 0;
+			break;
 
 	    case PA_PERF_VERSION:
   	  		/* Return the version # */
-			return put_user(PERF_VERSION, (int *)arg);
+			error = put_user(PERF_VERSION, (int *)arg);
+			break;
 
 	    default:
-  	 		break;
+  	 		error = -ENOTTY;
 	}
-	return -ENOTTY;
+
+	unlock_kernel()
+	return error;
 }
 
 static struct file_operations perf_fops = {
 	.llseek = no_llseek,
 	.read = perf_read,
 	.write = perf_write,
-	.ioctl = perf_ioctl,
+	.unlocked_ioctl = perf_ioctl,
+	.compat_ioctl = perf_ioctl,
 	.open = perf_open,
 	.release = perf_release
 };
Index: linux-2.6/arch/parisc/kernel/ioctl32.c
===================================================================
--- linux-2.6.orig/arch/parisc/kernel/ioctl32.c	2005-09-19 17:41:31.000000000 +0200
+++ linux-2.6/arch/parisc/kernel/ioctl32.c	2005-09-19 17:41:49.000000000 +0200
@@ -37,11 +37,6 @@
 #define DECLARES
 #include "compat_ioctl.c"
 
-/* PA-specific ioctls */
-COMPATIBLE_IOCTL(PA_PERF_ON)
-COMPATIBLE_IOCTL(PA_PERF_OFF)
-COMPATIBLE_IOCTL(PA_PERF_VERSION)

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Xref: news.gmane.org gmane.linux.ports.parisc:25189

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Subject: [parisc-linux] Space registers and how to use them
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Xref: news.gmane.org gmane.linux.ports.parisc:25190


There's a certain amount of confusion about how space registers are
specified, so I'm going to explain it for posterity.

There are two types of instruction which reference memory; those with
2-bit 's' fields and those with 3-bit 's' fields.

Instructions with a 3-bit s field are straightforward.  The value of
the s field directly specifies which of the 8 space registers to use.

Instructions with a 2-bit s field have two cases.  If s is 1-3, we use
the corresponding space register (sr1-sr3).  If the value in the s field
is 0, we do not use space register 0.  Instead, we use one of sr4-7 as
determined by the top two bits of the *base register*.

In Linux, sr4-7 are always set to the same value.  When in kernel space,
they are 0.  In user space, they have the value for the task we're
currently executing.

What we were trying to do in pacache.S was use an instruction (flush
instruction cache) as if it were a 2-bit-s instruction when it's actually
a 3-bit-s instruction.  This led to the processor using sr0 instead of
one of sr4-7.  The assembler now errors on this case, causing us to find
a bug.

Just to make things harder, there is a 2-bit-s version of flush
instruction cache, but it's only available on pa2.0 processors, so we
don't want to use it.  Instead we use sr4 (since sr4-7 all have the same
value in Linux).
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On Sun, Sep 25, 2005 at 09:53:07AM +0000, Joel Soete wrote:
> Btw can you help me to undurstand the concept of the 4 quadrants as it was 
> spoken in:
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-December/018602.html>

A "quadrant" is 1GB of address space. Think of each 1GB of address space
in 4GB as a "quadrant".

> Used in hpux? (documented somewhere?)

Probably.

> Is it related to the usage of sr4-7 as 4 different kernel spaces?

Yes. "2 bit s" field in fdc/fic map each "quadrant" to sr4-7.
ie 0-1GB uses sr4, 1-2GB uses sr5, etc.

John was just saying it doesn't matter since parisc-linux uses
the same value in all four (sr4-7) space registers.

grant
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> Instructions with a 2-bit s field have two cases.  If s is 1-3, we use
> the corresponding space register (sr1-sr3).  If the value in the s field
> is 0, we do not use space register 0.  Instead, we use one of sr4-7 as
> determined by the top two bits of the *base register*.

Actually, there is another twist to the above in wide mode (PSW[W]==1).
Instructions with long displacements always use the implicit addressing
scheme.  The space register bits are used instead to provide a 16-bit
displacement.  At the moment, we need support for some additional
relocations to handle long displacements for all instruction formats
(e.g., we lack support for long displacements in floating point loads
and stores).

Short and indexed instructions behave the same as in 32-bit mode for
s_field==0 (i.e., space register is determined by the top two bits
of the base register).  However, it's an undefined operation to have
a nonzero s_field in unprivileged code.

Regarding GAS, I changed the rules regarding the specification of
space registers in instructions to avoid confusion.  In instructions
that have a 3-bit space register field, it is now a requirement to
explicitly specify the space register field.  The treatment of sr0 in
these instructions is completely different from the treatment in
instructions with 2-bit space register fields (i.e., the base register
selection process isn't used).  There were a couple of entries in
the opcode table that allowed omitting the space register field in
instructions with 3-bit space register fields.  These have been
removed.  Indeed, without doing this, it wouldn't have been possible
to support both the 2 and 3-bit formats for "fic".

As a coding note, it's best not to specify sr0 in instructions which
use the base register selection mechanism.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> John was just saying it doesn't matter since parisc-linux uses
> the same value in all four (sr4-7) space registers.

It's possible for user code to mess with sr4.  It's not a
privileged register.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Sun, Sep 25, 2005 at 01:43:58PM -0400, John David Anglin wrote:
> As a coding note, it's best not to specify sr0 in instructions which
> use the base register selection mechanism.

I'd be happiest if it were illegal actually.  I wonder how much code
that'd break though ...

Can we make it emit a warning?  Something like
"sr0 not allowed for this instruction, using short pointer addressing instead"
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Just to mentioned that my stress test (a loop compiling the kernel + a loop deflating a kernel src tar file) run on my b2k for more 
then a full day without any pb :^): I wasn't any more able to do it for a long time.

Thanks for all,
	Joel

PS: Just noticed something weird:
when I objdump the ccio-dma.o (for the d380), it seems that insn lci is desasembled as the famous undocumented lha?


Grant Grundler wrote:
> On Sun, Sep 25, 2005 at 06:19:32PM -0600, Grant Grundler wrote:
> 
>>On Sun, Sep 25, 2005 at 03:50:18PM -0400, John David Anglin wrote:
>>
>>>>fixup.S needs a ".level 1.1" directive.  "ldw,s" is a PA 1.1 feature.
>>>
>>>Actually, it looks like there is a binutils bug here.  However, the
>>>".level" directive still should be added to PA 1.1 files.
>>
>>Unfortunately, use of LDREG precludes specifying .level directly.
>>LDREG becomes "ldd" for 64-bit builds and requires pa20 level.
>>Maybe add a "LDREGS_LEVEL" or somesuch.
> 
> 
> I obviously hadn't looked in asm-parisc/assembly.h.
> "#define LEVEL" is already present.
> 
> 
>>We could make the "LDREG,s" a new macro. But I'm not keen on using
>>the PA1.1 syntax (LDWX). If no one else has a better idea,
>> I'll make this change.
> 
> 
> Also already present (LDREGX).
> The 32-bit-SMP build completes with both in fixup.S.
> 
> thanks,
> grant "needs a cup of tea" grundler
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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On Sun, Sep 25, 2005 at 02:03:55PM -0400, John David Anglin wrote:
> > John was just saying it doesn't matter since parisc-linux uses
> > the same value in all four (sr4-7) space registers.
> 
> It's possible for user code to mess with sr4.  It's not a
> privileged register.

Certainly. But in the kernel those are KERNEL_SPACE (zero).
We save/restore the user space values for sr4-7.
We clear sr4-sr7 in linux_gateway_entry (arch/parisc/kernel/syscall.S)
for syscalls.  We do the same for interrupts in virt_map macro in entry.S.

grant
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On Sat, Oct 22, 2005 at 05:23:27PM +0100, Hugh Dickins wrote:
> There's a worrying function translation_exists in parisc cacheflush.h,
> unaffected by split ptlock since flush_dcache_page is using it on some
> other mm, without any relevant lock.  Oh well, make it a slightly more
> robust by factoring the pfn check within it.  And it looked liable to
> confuse a camouflaged swap or file entry with a good pte: fix that too.

I have to say I really don't understand VM at all.  cc'ing the
parisc-linux list in case anyone there has a better understanding than I
do.

> Signed-off-by: Hugh Dickins <hugh@veritas.com>
> ---
> 
>  arch/parisc/kernel/cache.c      |   24 +++++++++---------------
>  include/asm-parisc/cacheflush.h |   35 +++++++++++++++++++----------------
>  2 files changed, 28 insertions(+), 31 deletions(-)
> 
> --- mm2/arch/parisc/kernel/cache.c	2005-03-02 07:38:56.000000000 +0000
> +++ mm3/arch/parisc/kernel/cache.c	2005-10-22 14:06:30.000000000 +0100
> @@ -266,7 +266,6 @@ void flush_dcache_page(struct page *page
>  	unsigned long offset;
>  	unsigned long addr;
>  	pgoff_t pgoff;
> -	pte_t *pte;
>  	unsigned long pfn = page_to_pfn(page);
>  
>  
> @@ -297,21 +296,16 @@ void flush_dcache_page(struct page *page
>  		 * taking a page fault if the pte doesn't exist.
>  		 * This is just for speed.  If the page translation
>  		 * isn't there, there's no point exciting the
> -		 * nadtlb handler into a nullification frenzy */
> -
> -
> -  		if(!(pte = translation_exists(mpnt, addr)))
> -			continue;
> -
> -		/* make sure we really have this page: the private
> +		 * nadtlb handler into a nullification frenzy.
> +		 *
> +		 * Make sure we really have this page: the private
>  		 * mappings may cover this area but have COW'd this
> -		 * particular page */
> -		if(pte_pfn(*pte) != pfn)
> -  			continue;
> -
> -		__flush_cache_page(mpnt, addr);
> -
> -		break;
> +		 * particular page.
> +		 */
> +  		if (translation_exists(mpnt, addr, pfn)) {
> +			__flush_cache_page(mpnt, addr);
> +			break;
> +		}
>  	}
>  	flush_dcache_mmap_unlock(mapping);
>  }
> --- mm2/include/asm-parisc/cacheflush.h	2005-10-11 12:07:49.000000000 +0100
> +++ mm3/include/asm-parisc/cacheflush.h	2005-10-22 14:06:30.000000000 +0100
> @@ -100,30 +100,34 @@ static inline void flush_cache_range(str
>  
>  /* Simple function to work out if we have an existing address translation
>   * for a user space vma. */
> -static inline pte_t *__translation_exists(struct mm_struct *mm,
> -					  unsigned long addr)
> +static inline int translation_exists(struct vm_area_struct *vma,
> +				unsigned long addr, unsigned long pfn)
>  {
> -	pgd_t *pgd = pgd_offset(mm, addr);
> +	pgd_t *pgd = pgd_offset(vma->vm_mm, addr);
>  	pmd_t *pmd;
> -	pte_t *pte;
> +	pte_t pte;
>  
>  	if(pgd_none(*pgd))
> -		return NULL;
> +		return 0;
>  
>  	pmd = pmd_offset(pgd, addr);
>  	if(pmd_none(*pmd) || pmd_bad(*pmd))
> -		return NULL;
> +		return 0;
>  
> -	pte = pte_offset_map(pmd, addr);
> +	/* We cannot take the pte lock here: flush_cache_page is usually
> +	 * called with pte lock already held.  Whereas flush_dcache_page
> +	 * takes flush_dcache_mmap_lock, which is lower in the hierarchy:
> +	 * the vma itself is secure, but the pte might come or go racily.
> +	 */
> +	pte = *pte_offset_map(pmd, addr);
> +	/* But pte_unmap() does nothing on this architecture */
> +
> +	/* Filter out coincidental file entries and swap entries */
> +	if (!(pte_val(pte) & (_PAGE_FLUSH|_PAGE_PRESENT)))
> +		return 0;
>  
> -	/* The PA flush mappings show up as pte_none, but they're
> -	 * valid none the less */
> -	if(pte_none(*pte) && ((pte_val(*pte) & _PAGE_FLUSH) == 0))
> -		return NULL;
> -	return pte;
> +	return pte_pfn(pte) == pfn;
>  }
> -#define	translation_exists(vma, addr)	__translation_exists((vma)->vm_mm, addr)
> -
>  
>  /* Private function to flush a page from the cache of a non-current
>   * process.  cr25 contains the Page Directory of the current user
> @@ -175,9 +179,8 @@ flush_cache_page(struct vm_area_struct *
>  {
>  	BUG_ON(!vma->vm_mm->context);
>  
> -	if(likely(translation_exists(vma, vmaddr)))
> +	if (likely(translation_exists(vma, vmaddr, pfn)))
>  		__flush_cache_page(vma, vmaddr);
>  
>  }
>  #endif
> -
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Subject: Re: [parisc-linux] Re: [PATCH 3/9] mm: parisc pte atomicity
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To: Matthew Wilcox <matthew@wil.cx>
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Xref: news.gmane.org gmane.linux.ports.parisc:25198

On Sat, 2005-10-22 at 10:33 -0600, Matthew Wilcox wrote:
> On Sat, Oct 22, 2005 at 05:23:27PM +0100, Hugh Dickins wrote:
> > There's a worrying function translation_exists in parisc cacheflush.h,
> > unaffected by split ptlock since flush_dcache_page is using it on some
> > other mm, without any relevant lock.  Oh well, make it a slightly more
> > robust by factoring the pfn check within it.  And it looked liable to
> > confuse a camouflaged swap or file entry with a good pte: fix that too.
> 
> I have to say I really don't understand VM at all.  cc'ing the
> parisc-linux list in case anyone there has a better understanding than I
> do.

Well, I wrote the code for translation_exists() so I suppose that's
me...

Do you have a reference to the thread that triggered this?  I need more
context to decide what the actual problem is.

Let me explain what translation_exists() is though for the benefit of
the mm people.

Parisc is a VIPT architecture, so that would ordinarily entail a lot of
cache flushing through process spaces for shared pages.  However, we use
an optimisation of making all user space shared pages congruent, so
flushing a single one makes the cache coherent for all the others (this
is also a cache usage optimisation).

So, what our flush_dcache_page() does is it selects the first user page
it comes across to flush knowing that flushing this is sufficient to
flush all the others.

Unfortunately, there's a catch: the page we're flushing must have been
mapped into the user process (not guaranteed even if the area is in the
vma list) otherwise the flush has no effect (a VIPT cache flush must
know the translation of the page it's flushing), so we have to check the
validity of the translation before doing the flush.

On parisc, if we try to flush a page without a translation, it's picked
up by our software tlb miss handlers, which actually nullify the
instruction (but since we have to flush a page as a set of non
interlocking cache line flushes [about 128 of them per page with a cache
width of 32]) and the tlb handler is invoked for every flush instruction
(because the translation continues not to exist) it makes that flush
operation extremely slow. (128 interruptions of the execution stream per
flush)

So, the uses of translation_exists() are threefold

1) Make sure we execute flush_dcache_page() correctly (rather than
executing a flush that has no effect)
2) optimise single page flushing: don't excite the tlb miss handlers if
there's no translation
3) optimise pte lookup (that's why translation_exists returns the pte
pointer); since we already have to walk the page tables to answer the
question, the return value may as well be the pte entry or NULL rather
than true or false.

James


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Xref: news.gmane.org gmane.linux.ports.parisc:25199

On Sat, 22 Oct 2005, James Bottomley wrote:
> On Sat, 2005-10-22 at 10:33 -0600, Matthew Wilcox wrote:
> > On Sat, Oct 22, 2005 at 05:23:27PM +0100, Hugh Dickins wrote:
> > > There's a worrying function translation_exists in parisc cacheflush.h,
> > > unaffected by split ptlock since flush_dcache_page is using it on some
> > > other mm, without any relevant lock.  Oh well, make it a slightly more
> > > robust by factoring the pfn check within it.  And it looked liable to
> > > confuse a camouflaged swap or file entry with a good pte: fix that too.
> > 
> > I have to say I really don't understand VM at all.  cc'ing the
> > parisc-linux list in case anyone there has a better understanding than I
> > do.
> 
> Well, I wrote the code for translation_exists() so I suppose that's
> me...
> 
> Do you have a reference to the thread that triggered this?  I need more
> context to decide what the actual problem is.

No thread, and I don't know of any problem reported.  It's just that
in connection with my page fault scalability patches, splitting up the
page_table_lock, I've had to search through architectures for pte code
which may need changing.

Since translation_exists is doing no locking at present, it doesn't need
any change to match my ptlock changes.  But it's a little worrying that
it has no locking.  When called from flush_cache_page that's almost
always right, and locking would just deadlock on locks already taken
(I think core dumping uses flush_cache_page outside of locks, not a big
deal).  But when called from flush_dcache_page, it's dealing with some
other mm entirely: anything could happen at any moment.

We're actually better off with my changes here than before.  Since you're
coming from the vma_prio_tree, with the necessary locking on that, you
can now be sure that the page tables won't get pulled out from under you
(whereas before there was an unlikely window in which they might be).

> Let me explain what translation_exists() is though for the benefit of
> the mm people.

Thanks for taking the trouble, James (more than I needed to know!
but I'm reassured by what you say of the TLB miss handlers, I was
worried about how serious the consequence of doing it on an invalid
entry, feared kernel panic or something).
 
> Parisc is a VIPT architecture, so that would ordinarily entail a lot of
> cache flushing through process spaces for shared pages.  However, we use
> an optimisation of making all user space shared pages congruent, so
> flushing a single one makes the cache coherent for all the others (this
> is also a cache usage optimisation).
> 
> So, what our flush_dcache_page() does is it selects the first user page
> it comes across to flush knowing that flushing this is sufficient to
> flush all the others.
> 
> Unfortunately, there's a catch: the page we're flushing must have been
> mapped into the user process (not guaranteed even if the area is in the
> vma list) otherwise the flush has no effect (a VIPT cache flush must
> know the translation of the page it's flushing), so we have to check the
> validity of the translation before doing the flush.
> 
> On parisc, if we try to flush a page without a translation, it's picked
> up by our software tlb miss handlers, which actually nullify the
> instruction (but since we have to flush a page as a set of non
> interlocking cache line flushes [about 128 of them per page with a cache
> width of 32]) and the tlb handler is invoked for every flush instruction
> (because the translation continues not to exist) it makes that flush
> operation extremely slow. (128 interruptions of the execution stream per
> flush)
> 
> So, the uses of translation_exists() are threefold
> 
> 1) Make sure we execute flush_dcache_page() correctly (rather than
> executing a flush that has no effect)
> 2) optimise single page flushing: don't excite the tlb miss handlers if
> there's no translation
> 3) optimise pte lookup (that's why translation_exists returns the pte
> pointer); since we already have to walk the page tables to answer the
> question, the return value may as well be the pte entry or NULL rather
> than true or false.

Regarding 3, I changed it to boolean because the only use made of the pte
pointer was to check pfn: which check I folded inside translation_exists,
so the pte it's checking for pfn cannot have changed since it was checked
for being present (repeated dereferences of pte pointer without locking
make me nervous, and I changed some code in other architectures for that).

I'm right, aren't I? that the previous pte_none test was actually letting
through swap entries and pte_file entries which might look as if they had
the right pfn, just by coincidence of their offsets?  So flush_dcache_page
would stop, thinking it had done a good flush, when actually it hadn't.

But races remain: the pte good at the moment translation_exists checks it,
may have been taken out by kswapd a moment later (flush_dcache_mmap_lock
only secures the vma_prio_tree structure, not ptes within the vmas);
or it may have been COWed in the interval; or zapped from the mm.

Can you get a success code out of __flush_cache_page?  Or perhaps you
should run translation_exists a second time after the  __flush_cache_page,
to check nothing changed (the pte pointer would then be helpful, to save
descending a second time)?  Or perhaps it all works out, that any such
change which might occur, itself does the __flush_cache_page you need?

Hugh
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Subject: Re: [parisc-linux] Re: [PATCH 3/9] mm: parisc pte atomicity
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Xref: news.gmane.org gmane.linux.ports.parisc:25200

On Sun, 23 Oct 2005, James Bottomley wrote:
> On Sun, 2005-10-23 at 10:02 +0100, Hugh Dickins wrote:
> 
> The change does slightly worry me in that it alters the behaviour of
> flush_cache_page() because now it checks the pfn whereas previously it
> didn't.  This means that previously we would flush the COW'd page of a
> shared mapping, now we won't.

Perhaps you're thinking of some use of flush_cache_page that no longer
exists in the tree?  All the uses I see are passing in the right pfn,
and the question is why translation_exists even gets called by it.

Even those uses of flush_cache_page in asm-parisc/cacheflush.h itself
(which I'd missed before): copy_to_user_page and copy_from_user_page
are only used by nothing but access_process_vm, after get_user_pages:
so any COW has already been done, and the right pfn is passed in.

> > I'm right, aren't I? that the previous pte_none test was actually letting
> > through swap entries and pte_file entries which might look as if they had
> > the right pfn, just by coincidence of their offsets?  So flush_dcache_page
> > would stop, thinking it had done a good flush, when actually it hadn't.
> 
> Actually, no, pte_none() on parisc is either pte is zero or _PAGE_FLUSH
> (which is our private flag saying we're preserving the pte entry for the
> purposes of flushing even though it's gone) is set.

Sorry, "pte_none test" was my lazy shorthand for the actual test:
	if(pte_none(*pte) && ((pte_val(*pte) & _PAGE_FLUSH) == 0))
		return NULL;
from which point on it assumes the pte is valid.  I'm contending that
a swap entry or pte_file entry does not return NULL there, so is then
treated as a valid pte: and pte_pfn on it might match the target pfn.

I believe my
	/* Filter out coincidental file entries and swap entries */
	if (!(pte_val(pte) & (_PAGE_FLUSH|_PAGE_PRESENT)))
		return 0;
is correct, and avoids that problem (plus avoiding the complication
of parisc's unintuitive pte_none).

> However, now that I
> look at it, are you thinking our ptep_get_and_clear() should be doing a
> check for _PAGE_PRESENT before it sets _PAGE_FLUSH?

That's certainly not what I was thinking.  No, I'm pretty sure that
ptep_get_and_clear only gets called when we've got the right lock and
know the pte is present: I don't think you need to make any change there.
(The "pretty sure" reflecting that there's a bit of a macro maze here now,
so actually following up each reference would take a bit longer.)

But you may be seeing something I don't see: I've only just met your
_PAGE_FLUSH, and that unusual pte_none might be letting something
through that I'm overlooking, that you're aware of.

> > But races remain: the pte good at the moment translation_exists checks it,
> > may have been taken out by kswapd a moment later (flush_dcache_mmap_lock
> > only secures the vma_prio_tree structure, not ptes within the vmas);
> > or it may have been COWed in the interval; or zapped from the mm.
> > 
> > Can you get a success code out of __flush_cache_page?  Or perhaps you
> > should run translation_exists a second time after the  __flush_cache_page,
> > to check nothing changed (the pte pointer would then be helpful, to save
> > descending a second time)?  Or perhaps it all works out, that any such
> > change which might occur, itself does the __flush_cache_page you need?
> 
> Yes, I know ... I never liked the volatility of this, but it's better
> than what was there before, believe me (previously we just flushed the
> first entry we found regardless).

I do believe you!

> Getting a return code out of __flush_dcache_page() is hard because it
> doesn't know if the tlb miss handler nullified the instructions it's
> trying to execute; and they're interruption handlers (meaning we don't
> push anything on the stack for them, they run in shadow registers), so
> getting a return code out of them is next to impossible.

Right, it was just a thought.

> For the flush to be effective in the VIPT cache, we have to have a
> virtual address with a valid translation that points to the correct
> physical address.  I suppose we could flush through the tmpalias space
> instead.  That's where we set up an artifical translation that's not the
> actual vaddr but instead is congruent to the vaddr so the mapping is
> effective in cache aliasing terms.  Our congruence boundary is 4MB, so
> we set up a private (per cpu) 4MB space (tmpalias) where we can set up
> our pte's (or actually manufacture them in the tlb miss handler)
> securely.

I have no appreciation at all how that would compare.  On the one hand
it sounds like a lot of overhead you'd understandably prefer to avoid;
on the other hand, this hit-and-miss search of the vma_prio_tree might
be a worse overhead better avoided.   I've no appreciation at all.

But I made two suggestions above that might be less work.  One,
requiring no work but research, that _perhaps_ in all the racy cases
you can rely on the __flush_cache_page having been done by the racer?
I can't tell, and it may be obvious to you that that's a non-starter.

Other, that you just check the pte again after the __flush_cache_page,
if it's no longer right then assume the flush didn't work and continue.
There is a small chance that the pte was right before, wrong during the
flush, then right after (something else faulted it back in, while we
were away... I was about to say handling an interrupt, but actually
even interrupts are disabled here by flush_dcache_mmap_lock, since
that's a reuse of mapping->tree_lock).  But it would improve the
safety by several orders of magnitude.

Hugh
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Subject: Re: [parisc-linux] Re: [PATCH 3/9] mm: parisc pte atomicity
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Xref: news.gmane.org gmane.linux.ports.parisc:25201

On Mon, 2005-10-24 at 05:36 +0100, Hugh Dickins wrote:
> On Sun, 23 Oct 2005, James Bottomley wrote:
> > The change does slightly worry me in that it alters the behaviour of
> > flush_cache_page() because now it checks the pfn whereas previously it
> > didn't.  This means that previously we would flush the COW'd page of a
> > shared mapping, now we won't.
> 
> Perhaps you're thinking of some use of flush_cache_page that no longer
> exists in the tree?  All the uses I see are passing in the right pfn,
> and the question is why translation_exists even gets called by it.

No, just verifying that we won't get tripped up by the pfn test in the
one case where we didn't do it previously.

translation_exists() is just an optimisation in flush_cache_page().  If
there's no pte, we can't do an effective flush, so instead of relying on
flush instruction nullification to achieve the nop, we just call
transation_exists() to do the check for us.

> Even those uses of flush_cache_page in asm-parisc/cacheflush.h itself
> (which I'd missed before): copy_to_user_page and copy_from_user_page
> are only used by nothing but access_process_vm, after get_user_pages:
> so any COW has already been done, and the right pfn is passed in.

OK, so the patch should be fine then.

> > > I'm right, aren't I? that the previous pte_none test was actually letting
> > > through swap entries and pte_file entries which might look as if they had
> > > the right pfn, just by coincidence of their offsets?  So flush_dcache_page
> > > would stop, thinking it had done a good flush, when actually it hadn't.
> > 
> > Actually, no, pte_none() on parisc is either pte is zero or _PAGE_FLUSH
> > (which is our private flag saying we're preserving the pte entry for the
> > purposes of flushing even though it's gone) is set.
> 
> Sorry, "pte_none test" was my lazy shorthand for the actual test:
> 	if(pte_none(*pte) && ((pte_val(*pte) & _PAGE_FLUSH) == 0))
> 		return NULL;
> from which point on it assumes the pte is valid.  I'm contending that
> a swap entry or pte_file entry does not return NULL there, so is then
> treated as a valid pte: and pte_pfn on it might match the target pfn.

OK, I see, yes, we could have had this problem.

> I believe my
> 	/* Filter out coincidental file entries and swap entries */
> 	if (!(pte_val(pte) & (_PAGE_FLUSH|_PAGE_PRESENT)))
> 		return 0;
> is correct, and avoids that problem (plus avoiding the complication
> of parisc's unintuitive pte_none).

Yes, it should.

> > However, now that I
> > look at it, are you thinking our ptep_get_and_clear() should be doing a
> > check for _PAGE_PRESENT before it sets _PAGE_FLUSH?
> 
> That's certainly not what I was thinking.  No, I'm pretty sure that
> ptep_get_and_clear only gets called when we've got the right lock and
> know the pte is present: I don't think you need to make any change there.
> (The "pretty sure" reflecting that there's a bit of a macro maze here now,
> so actually following up each reference would take a bit longer.)
> 
> But you may be seeing something I don't see: I've only just met your
> _PAGE_FLUSH, and that unusual pte_none might be letting something
> through that I'm overlooking, that you're aware of.

Actually, I think what we need to ascertain is whether _PAGE_FLUSH is
still necessary.  A long time ago, Linux would do stupid things like
clear the page table entry and then flush (which is legal on PIPT
architectures like x86).  If it's no longer doing that then we no-longer
need to worry about _PAGE_FLUSH.

> > > But races remain: the pte good at the moment translation_exists checks it,
> > > may have been taken out by kswapd a moment later (flush_dcache_mmap_lock
> > > only secures the vma_prio_tree structure, not ptes within the vmas);
> > > or it may have been COWed in the interval; or zapped from the mm.
> > > 
> > > Can you get a success code out of __flush_cache_page?  Or perhaps you
> > > should run translation_exists a second time after the  __flush_cache_page,
> > > to check nothing changed (the pte pointer would then be helpful, to save
> > > descending a second time)?  Or perhaps it all works out, that any such
> > > change which might occur, itself does the __flush_cache_page you need?
> > 
> > Yes, I know ... I never liked the volatility of this, but it's better
> > than what was there before, believe me (previously we just flushed the
> > first entry we found regardless).
> 
> I do believe you!
> 
> > Getting a return code out of __flush_dcache_page() is hard because it
> > doesn't know if the tlb miss handler nullified the instructions it's
> > trying to execute; and they're interruption handlers (meaning we don't
> > push anything on the stack for them, they run in shadow registers), so
> > getting a return code out of them is next to impossible.
> 
> Right, it was just a thought.
> 
> > For the flush to be effective in the VIPT cache, we have to have a
> > virtual address with a valid translation that points to the correct
> > physical address.  I suppose we could flush through the tmpalias space
> > instead.  That's where we set up an artifical translation that's not the
> > actual vaddr but instead is congruent to the vaddr so the mapping is
> > effective in cache aliasing terms.  Our congruence boundary is 4MB, so
> > we set up a private (per cpu) 4MB space (tmpalias) where we can set up
> > our pte's (or actually manufacture them in the tlb miss handler)
> > securely.
> 
> I have no appreciation at all how that would compare.  On the one hand
> it sounds like a lot of overhead you'd understandably prefer to avoid;
> on the other hand, this hit-and-miss search of the vma_prio_tree might
> be a worse overhead better avoided.   I've no appreciation at all.

Well ... it appeals because we could now implement flush_dcache_page()
without walking the vmas.  All we need is the offset (because vm_start
is always congruent) which we can work out from the page->index, so we
never need any locking.

> But I made two suggestions above that might be less work.  One,
> requiring no work but research, that _perhaps_ in all the racy cases
> you can rely on the __flush_cache_page having been done by the racer?
> I can't tell, and it may be obvious to you that that's a non-starter.

Yes, that, theoretically, is correct.  Any flush at that address to user
space affects all the mappings, whether it's done by clearing the pte or
by us in flush_dcache_page().

> Other, that you just check the pte again after the __flush_cache_page,
> if it's no longer right then assume the flush didn't work and continue.
> There is a small chance that the pte was right before, wrong during the
> flush, then right after (something else faulted it back in, while we
> were away... I was about to say handling an interrupt, but actually
> even interrupts are disabled here by flush_dcache_mmap_lock, since
> that's a reuse of mapping->tree_lock).  But it would improve the
> safety by several orders of magnitude.

No ... we'll go with the racer already did it theory, I think ...

James


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Good, I think we're converging.

On Mon, 24 Oct 2005, James Bottomley wrote:
> On Mon, 2005-10-24 at 05:36 +0100, Hugh Dickins wrote:

> Actually, I think what we need to ascertain is whether _PAGE_FLUSH is
> still necessary.  A long time ago, Linux would do stupid things like
> clear the page table entry and then flush (which is legal on PIPT
> architectures like x86).  If it's no longer doing that then we no-longer
> need to worry about _PAGE_FLUSH.

I can't quite work out the sequence here.  That issue was fixed four
years ago in 2.4.10: I sent the patch which moved the flush_cache_page
in vmscan.c, incorporating one posted by NIIBE Yutaka and David Miller,
to get SH right.  Whereas PA-RISC's _PAGE_FLUSH got added a year later
in 2.4.20 and 2.5.45.

Ah, yes, it got switched around the wrong side again in 2.5, because
the pte_chains rmap (based on 2.4.9) propagated that error for a while.
Well, it's simply an error if flush_cache_page is called after clearing
the pte, and it now looks like _PAGE_FLUSH was the wrong fix.  It would
be a nice simplification if you can now get rid of _PAGE_FLUSH (but I
won't be sending patches to do that myself).

> > > For the flush to be effective in the VIPT cache, we have to have a
> > > virtual address with a valid translation that points to the correct
> > > physical address.  I suppose we could flush through the tmpalias space
> > > instead.  That's where we set up an artifical translation that's not the
> > > actual vaddr but instead is congruent to the vaddr so the mapping is
> > > effective in cache aliasing terms.  Our congruence boundary is 4MB, so
> > > we set up a private (per cpu) 4MB space (tmpalias) where we can set up
> > > our pte's (or actually manufacture them in the tlb miss handler)
> > > securely.
> 
> Well ... it appeals because we could now implement flush_dcache_page()
> without walking the vmas.  All we need is the offset (because vm_start
> is always congruent) which we can work out from the page->index, so we
> never need any locking.

If the overhead of setting them up and flushing them out after is low,
then yes, using your own tmpalias area sounds much better than getting
involved in the vma_prio_tree stuff.  ARM would then be the only
architecture having to dabble in that.

> No ... we'll go with the racer already did it theory, I think ...

Okay, just don't blame me if it's horribly wrong ;)
I've simply not wrapped my head around the races, and would
need a much better understanding of SMP on PA-RISC to do so.

Right, it looks like we agree that my patch is necessary and valid as is;
but that the further races which worried me are not an issue, because the
racer will have done the necessary flush_cache_page.  And two cleanups may
be done later: remove _PAGE_FLUSH, and use tmpalias instead of vma_prio_tree.

Hugh
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Subject: [parisc-linux] 2.6.15-rc1 freeing a reserved page from uart_shutdown
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I'm having some trouble with 2.6.15-rc1:

VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 640k freed
Bad page state at free_hot_cold_page (in process 'init', page 108a24a0)
flags:0x00000400 mapping:00000000 mapcount:0 count:0
Backtrace:
Backtrace:
 [<101481cc>] bad_page+0x70/0xc4
 [<10148920>] free_hot_cold_page+0x74/0x124
 [<10275e68>] uart_shutdown+0xf0/0xf8
 [<102775f8>] uart_close+0xc8/0x214
 [<1025c710>] release_dev+0x72c/0x734
 [<1025cddc>] tty_release+0x10/0x20
 [<101680f0>] __fput+0x15c/0x170
 [<10166520>] filp_close+0x58/0x94
 [<1010d114>] syscall_exit+0x0/0x14

This is on a parisc system, though a very similar tree boots fine on a
different machine.  The machine which produces this message is a K460
which uses the Mux serial driver.  As far as I can tell, the only call
to free_hot_cold_page() in uart_shutdown() is to free info->xmit.buf
which seems to be always filled by a call to get_zeroed_page().

This problem doesn't show with 2.6.14.  I can give access to this
machine to anyone who wants to do some debugging.  It has remote power
capabilities ;-)
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On Sat, Nov 12, 2005 at 10:52:13AM +0100, Christoph Hellwig wrote:
> ppp ioctls handlers in parisc are wrong:
> 
>  - they would need to do a copat_ptr on  ifr->ifr_ifru.ifru_data
>  - SIOCGPPP* ioctls are defines as SIOCDEVPRIVATE + n, so they'd
>    kick in for all private ioctls which is defintely wrong.
> 
> to implement proper ppp compat_ioctl handlig we'd need a compat_ioctl
> method in struct net_device, which we don't have yet.

While I agree that this is theoretically wrong, the problem is that if
we remove them, people using ppp on 64-bit PA machines will no longer be
able to do so.  And yes, there are some, that's why these got added in
the first place.

Perhaps I'll look into the compat_ioctl route later.  In any case, I
would prefer this patch not be added for the moment.
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Subject: [parisc-linux] Migrating from CVS to Git
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I'm investigating what needs to be done to switch us from CVS to Git.
So far I've done:

 - Set up a shared repository (current people with commit access:
   bame,carlos,deller,grundler,jejb,kyle,rbrad,tausq,varenet,willy
   others will be added on an ad-hoc basis)
 - Changes made to that repository get sent to the p-l-cvs mailing list
 - The repo is visible via gitweb: http://git.parisc-linux.org/
 - Changes are linked from the mailing list

What needs to be converted?

 - Tagging.  It's now essentially free.  A tag in git terms is just a
   ref.  You can add them at any point.  So we need to figure out what
   we want to bless as good.
 - Autobuilding.  This can change slightly as a result of how different
   tagging is.  Do we want to just build every time there's a commit?
   It'd be a bit wasteful, but CPU and disk is cheap.
 - Documentation.  There's the git tutorials to link to, but something
   specific to "Here's how you work on the p-l tree" would make the
   learning curve less steep.
 - Merging to Linus.  This should hopefully be an easier process,
   being easier to cherry-pick changesets out of our shared repo.
 - Merging from Linus.  We can now pull whenever we like, but how often
   should we pull, and what bits of Linus' dev tree do we want to
   inflict on our users?  ;-)

I'm sure there are other things that need to be converted and discussed.
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Subject: Re: [parisc-linux] Migrating from CVS to Git
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On Mon, Nov 21, 2005 at 09:54:11AM -0700, Matthew Wilcox wrote:
> I'm investigating what needs to be done to switch us from CVS to Git.
> So far I've done:
> 
>  - Set up a shared repository (current people with commit access:
>    bame,carlos,deller,grundler,jejb,kyle,rbrad,tausq,varenet,willy
>    others will be added on an ad-hoc basis)
>  - Changes made to that repository get sent to the p-l-cvs mailing list
>  - The repo is visible via gitweb: http://git.parisc-linux.org/
>  - Changes are linked from the mailing list

thanks!

> What needs to be converted?
> 
>  - Tagging.  It's now essentially free.  A tag in git terms is just a
>    ref.  You can add them at any point.  So we need to figure out what
>    we want to bless as good.

This is a distro problem. We should tag anything we change in the tree.

>  - Autobuilding.  This can change slightly as a result of how different
>    tagging is.  Do we want to just build every time there's a commit?

Something that anyone who has write access can trigger.
Just need to make sure we "commit" sets properly.
Will the Makefile commit will no longer trigger the auto-builder?

>    It'd be a bit wasteful, but CPU and disk is cheap.
>  - Documentation.  There's the git tutorials to link to, but something
>    specific to "Here's how you work on the p-l tree" would make the
>    learning curve less steep.

Thanks - I think what you already wrote should be sufficient for now:
	http://www.parisc-linux.org/faq/git.html

If someone is disappointed, please clone the content to wiki.parisc-linux.org
and improve it.

>  - Merging to Linus.  This should hopefully be an easier process,
>    being easier to cherry-pick changesets out of our shared repo.
>  - Merging from Linus.  We can now pull whenever we like, but how often
>    should we pull, and what bits of Linus' dev tree do we want to
>    inflict on our users?  ;-)

-rc releases is sufficient for me unless we some infrastructure broken
that needs faster turn-around to linus. I'm thinking of the spinlock
breakage that occurred when mingo's latest cleanup went in.

> I'm sure there are other things that need to be converted and discussed.

Given you already have gitview running, the auto-builder is the
only other tool I can think of.

thanks,
grant
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On Mon, Nov 21, 2005 at 03:25:22PM -0700, Grant Grundler wrote:
> >  - Tagging.  It's now essentially free.  A tag in git terms is just a
> >    ref.  You can add them at any point.  So we need to figure out what
> >    we want to bless as good.
> 
> This is a distro problem. We should tag anything we change in the tree.

We don't need to any more.  We have a sha1 number (which is part of the
commit mail) that allows us to recover the state of the tree after any
commit.

> >  - Autobuilding.  This can change slightly as a result of how different
> >    tagging is.  Do we want to just build every time there's a commit?
> 
> Something that anyone who has write access can trigger.
> Just need to make sure we "commit" sets properly.
> Will the Makefile commit will no longer trigger the auto-builder?

I was hoping we'd no longer have to do Makefile commits.  Maybe we still
want to, though?

> Thanks - I think what you already wrote should be sufficient for now:
> 	http://www.parisc-linux.org/faq/git.html
> 
> If someone is disappointed, please clone the content to wiki.parisc-linux.org
> and improve it.

I thought about doing it on the wiki to begin with, but thought we
should have the git docs somewhere official first.

> -rc releases is sufficient for me unless we some infrastructure broken
> that needs faster turn-around to linus. I'm thinking of the spinlock
> breakage that occurred when mingo's latest cleanup went in.

I was thinking along similar lines.
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This is a multi-part message in MIME format.

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Hi all,

The trivial attached patch remove the need of HOME and TERM into the boot command line.
This is usfull for gentoo livecd to which we sometimes have to pass long boot command lines.

Cheers



-- 
Guy Martin
Gentoo Linux - HPPA port Lead / IPv6 team

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diff -uNr palo.orig/Makefile palo/Makefile
--- palo.orig/Makefile	2004-05-17 13:39:00.431714000 +0200
+++ palo/Makefile	2004-05-17 13:39:45.221714000 +0200
@@ -56,7 +56,7 @@
     ROOT=root=/dev/nfs nfsroot=${NFSROOT} ip=bootp
 endif
 
-CMDLINE = 0/vmlinux HOME=/ TERM=linux $(ROOT) $(EISAIRQ) $(CONSOLE)
+CMDLINE = 0/vmlinux $(ROOT) $(EISAIRQ) $(CONSOLE)
 
 all: makepalo README palo.conf
 	
diff -uNr palo.orig/README palo/README
--- palo.orig/README	2004-05-17 13:39:00.431714000 +0200
+++ palo/README	2004-05-17 13:40:09.341714000 +0200
@@ -42,13 +42,13 @@
        files to it, unmount.
      * Use palo to make the disk bootable:
         $ palo \
-             -c "5/vmlinux HOME=/ TERM=linux console=tty" \
+             -c "5/vmlinux console=tty" \
              -k path/to/vmlinux \
              -I /dev/your-disk
 
       On a self-hosted system, you can accomplish the same thing by placing
       the following into /etc/palo.conf:
-   --commandline=5/vmlinux HOME=/ TERM=linux console=tty
+   --commandline=5/vmlinux console=tty
    --recoverykernel=/boot/vmlinux
    --init-partitioned=/dev/your-disk
 
diff -uNr palo.orig/README.html palo/README.html
--- palo.orig/README.html	2004-05-17 13:39:00.431714000 +0200
+++ palo/README.html	2004-05-17 13:40:27.801714000 +0200
@@ -52,13 +52,13 @@
     <p><li>Use <i>palo</i> to make the disk bootable:
     <pre>
 	$ palo \
-	     -c "5/vmlinux HOME=/ TERM=linux console=tty" \
+	     -c "5/vmlinux console=tty" \
 	     -k path/to/vmlinux \
 	     -I /dev/your-disk</pre>
 <center><table border=1 bgcolor=yellow width=80%><tr><td>
 On a self-hosted system, you can accomplish the same thing by placing
 the following into <tt>/etc/palo.conf</tt>:
-<pre>--commandline=5/vmlinux HOME=/ TERM=linux console=tty
+<pre>--commandline=5/vmlinux console=tty
 --recoverykernel=/boot/vmlinux
 --init-partitioned=/dev/your-disk</pre>
 and running <i>palo</i>.
diff -uNr palo.orig/ipl/ipl.c palo/ipl/ipl.c
--- palo.orig/ipl/ipl.c	2004-05-17 13:39:00.491714000 +0200
+++ palo/ipl/ipl.c	2004-05-17 13:39:19.681714000 +0200
@@ -481,9 +481,6 @@
 	        chk_strcat(commandline, "ttyB0", CMDLINELEN, &ok);
             else
 	        chk_strcat(commandline, "ttyS0", CMDLINELEN, &ok);
-
-	    if (strstr(commandline, " TERM=") == 0)
-	        chk_strcat(commandline, " TERM=vt102", CMDLINELEN, &ok);
 	}
 	else
 	{
@@ -519,8 +516,6 @@
 	    }
 	    if (strstr(commandline, " sti_font=") == 0)
 	        chk_strcat(commandline, " sti_font=VGA8x16", CMDLINELEN, &ok);
-	    if (strstr(commandline, " TERM=") == 0)
-	        chk_strcat(commandline, " TERM=linux", CMDLINELEN, &ok);
 	}
     }
 
diff -uNr palo.orig/palo.conf palo/palo.conf
--- palo.orig/palo.conf	2004-05-17 13:39:00.431714000 +0200
+++ palo/palo.conf	2004-05-17 13:41:01.541714000 +0200
@@ -8,7 +8,7 @@
 # recovery kernel, and the default dynamically-booted kernel.
 # --recoverykernel=/boot/vmlinux
 # --init-partitioned=/dev/sda
-# --commandline=3/boot/vmlinux HOME=/ TERM=linux root=/dev/sda3
+# --commandline=3/boot/vmlinux root=/dev/sda3
 
 #
 #Usage: palo [options]
@@ -18,8 +18,8 @@
 #		Maximum 127 characters.
 #    -k, --recoverykernel=path to recovery kernel (perhaps /boot/vmlinux)
 #    -b, --bootloader=path to boot loader
-		Defaults to /usr/share/palo/iplboot -- you usually don't
-		need to use -b or --bootloader
+#		Defaults to /usr/share/palo/iplboot -- you usually don't
+#		need to use -b or --bootloader
 #    -r, --ramdisk=path to initial ramdisk image
 #    -I, --init-partitioned=partitioned device or file
 #    		Initialize a pre-partitioned device, usually a hard disk.

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Subject: [parisc-linux] 2.6.15-rc3 merged successfully with rc2-pa2 but
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Xref: news.gmane.org gmane.linux.ports.parisc:25209

Hi *,

I just get a try to this merge (near straightforward :<)) but failled to =
build
in 2 places with the same error:
  gcc -Wp,-MD,mm/.memory.o.d  -nostdinc -isystem
/usr/lib/gcc/hppa-linux-gnu/4.0.3/include -D__KERNEL__ -Iinclude -Iinclud=
e2
-I/CAD/
linux-2.6.15-rc2-pa2-20051127/include -include include/linux/autoconf.h
-I/CAD/linux-2.6.15-rc2-pa2-20051127/mm -Imm -Wall -Wundef -
Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common
-ffreestanding -O2 -fomit-frame-pointer -pipe -mno-space-regs -mf
ast-indirect-calls -mdisable-fpregs -ffunction-sections -march=3D2.0
-mschedule=3D8000 -Wdeclaration-after-statement -Wno-pointer-sign
-DKBUILD_BASENAME=3Dmemory -DKBUILD_MODNAME=3Dmemory -c -o mm/memory.o
/CAD/linux-2.6.15-rc2-pa2-20051127/mm/memory.c
/CAD/linux-2.6.15-rc2-pa2-20051127/mm/memory.c: In function do_wp_page:
/CAD/linux-2.6.15-rc2-pa2-20051127/mm/memory.c:1349: error: pfn undeclare=
d
(first use in this function)
/CAD/linux-2.6.15-rc2-pa2-20051127/mm/memory.c:1349: error: (Each undecla=
red
identifier is reported only once
/CAD/linux-2.6.15-rc2-pa2-20051127/mm/memory.c:1349: error: for each func=
tion
it appears in.)
make[2]: *** [mm/memory.o] Error 1

and:
  gcc -Wp,-MD,mm/.rmap.o.d  -nostdinc -isystem
/usr/lib/gcc/hppa-linux-gnu/4.0.3/include -D__KERNEL__ -Iinclude -Iinclud=
e2
-I/CAD/li
nux-2.6.15-rc3-pa2mm-20051127/include -include include/linux/autoconf.h
-I/CAD/linux-2.6.15-rc3-pa2mm-20051127/mm -Imm -Wall -Wundef
 -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common
-ffreestanding -O2 -fomit-frame-pointer -pipe -mno-space-regs -
mfast-indirect-calls -mdisable-fpregs -ffunction-sections -march=3D2.0
-mschedule=3D8000 -Wdeclaration-after-statement -Wno-pointer-sign
  -DKBUILD_BASENAME=3Drmap -DKBUILD_MODNAME=3Drmap -c -o mm/rmap.o
/CAD/linux-2.6.15-rc3-pa2mm-20051127/mm/rmap.c
/CAD/linux-2.6.15-rc3-pa2mm-20051127/mm/rmap.c: In function try_to_unmap_=
cluster:
/CAD/linux-2.6.15-rc3-pa2mm-20051127/mm/rmap.c:644: error: pfn undeclared=

(first use in this function)
/CAD/linux-2.6.15-rc3-pa2mm-20051127/mm/rmap.c:644: error: (Each undeclar=
ed
identifier is reported only once
/CAD/linux-2.6.15-rc3-pa2mm-20051127/mm/rmap.c:644: error: for each funct=
ion
it appears in.)
make[2]: *** [mm/rmap.o] Error 1

This ack seems to make the drill:
--- mm/memory.c.Orig    2005-11-29 14:20:21.000000000 +0100
+++ mm/memory.c 2005-11-29 14:27:49.000000000 +0100
@@ -1346,7 +1346,7 @@
                int reuse =3D can_share_swap_page(old_page);
                unlock_page(old_page);
                if (reuse) {
-                       flush_cache_page(vma, address, pfn);
+                       flush_cache_page(vma, address, pte_pfn(orig_pte))=
;
                        entry =3D pte_mkyoung(orig_pte);
                        entry =3D maybe_mkwrite(pte_mkdirty(entry), vma);=

                        ptep_set_access_flags(vma, address, page_table, e=
ntry, 1);
@@ -1390,7 +1390,7 @@
                        }
                } else
                        inc_mm_counter(mm, anon_rss);
-               flush_cache_page(vma, address, pfn);
+               flush_cache_page(vma, address, pte_pfn(orig_pte));
                entry =3D mk_pte(new_page, vma->vm_page_prot);
                entry =3D maybe_mkwrite(pte_mkdirty(entry), vma);
                ptep_establish(vma, address, page_table, entry);
=3D=3D=3D=3D<>=3D=3D=3D=3D
--- mm/rmap.c.Orig      2005-11-29 14:32:43.000000000 +0100
+++ mm/rmap.c   2005-11-29 14:36:21.000000000 +0100
@@ -641,7 +641,7 @@
                        continue;
 
                /* Nuke the page table entry. */
-               flush_cache_page(vma, address, pfn);
+               flush_cache_page(vma, address, pte_pfn(*pte));
                pteval =3D ptep_clear_flush(vma, address, pte);
 
                /* If nonlinear, store the file page offset in the pte. *=
/
=3D=3D=3D=3D<>=3D=3D=3D=3D

I doubt it could be the fix as it seems that it was already build without=
 that
stuff (<http://lkml.org/lkml/2005/11/29/27>)?

Thanks for your attention,
    Joel=0A=0A-------------------------------------------------------=0AN=
OTE! My email address is changing to ... @scarlet.be=0APlease make the ne=
cessary changes in your address book. =0A=0A

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Hi PA-Gurus! :)

I've tried to compile a LiveMedia test program on my B180L with sarge 
and etch 2.6.12-1-parisc kernel installed.

If I give all the correct include all goes well and a correct executable 
is produced, the following is the working compile string:

bizzi@b180l:~/examples$ g++ testMP3Streamer.cpp -o testMP3Streamer 
-I/usr/include/liveMedia/ -I/usr/include/groupsock/ 
-I/usr/include/BasicUsageEnvironment -I/usr/include/UsageEnvironment 
-lliveMedia -lgroupsock -lBasicUsageEnvironment -lUsageEnvironment

But if I miss a couple of include dir I have a correct error generation 
and a strange message in /var/log/debug , the uncorrect compile string is:

g++ testMP3Streamer.cpp -o testMP3Streamer -I/usr/include/liveMedia/ 
-I/usr/include/groupsock/ -lliveMedia -lgroupsock 
-lBasicUsageEnvironment -lUsageEnvironment

and the /var/log/debug message is:

8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-

do_page_fault() pid=19583 command='cc1plus' type=15 address=0x000000ec

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111100100001111 Not tainted
r00-03  00000000 0036c198 0002570f 4062eaf0
r04-07  40014cb0 4062eaf0 0036c198 00000000
r08-11  003c1998 0039c198 0039c198 0036c198
r12-15  00000000 002ef000 0039e198 00036f4c
r16-19  bff8f908 0039e198 00000000 00000000
r20-23  00000000 00000022 00000001 00000000
r24-27  00000001 4062eaf0 00000160 0036c198
r28-31  40014cb0 00000000 bff90580 00162f37
sr0-3   00000000 00000006 00000000 0000012b
sr4-7   0000012b 0000012b 0000012b 0000012b

IASQ: 0000012b 0000012b IAOQ: 00025713 00025717
  IIR: 4a8301d8    ISR: 0000012b  IOR: 000000ec
  CPU:        0   CR30: 17f5c000 CR31: 103e4000
  ORIG_R28: 00000000
  IAOQ[0]: 0x25713
  IAOQ[1]: 0x25717
  RP(r2): 0x2570f

8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-8<-

I've installed via apt-get the liblivemedia-dev paackage version 
2005.04.01-1

Is this a normal behavior or I've found something strange? ;)

Thanks a lot to evrybody!!! :)

Ciao.

	Fabio.


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> But if I miss a couple of include dir I have a correct error generation
> and a strange message in /var/log/debug , the uncorrect compile string is:

Looks like you found a gcc bug. What happened is that g++ crashed
(SIGSEGV) while processing your file.

It seems to be only in g++-3.3. I tried with g++-3.3 and g++-4.0.2 and
can not reproduce the problem.

The limited stack trace is:

Program received signal SIGSEGV, Segmentation fault.
0x000255fc in pop_everything ()
(gdb) bt
#0  0x000255fc in pop_everything ()
#1  0x0002f834 in cxx_insert_default_attributes ()
#2  0x00072688 in cxx_make_type ()
#3  0x000b7870 in c_common_parse_file ()
#4  0x0022bb8c in rtx_addr_varies_p ()
#5  0x00231224 in rtx_addr_varies_p ()
#6  0x002312e8 in rtx_addr_varies_p ()
#7  0x401ee6e4 in __libc_start_main () from /lib/libc.so.6
#8  0x00016a58 in ?? ()
(gdb) x/i $pc
0x255fc <pop_everything+808>:   ldw ec(,r20),r3
(gdb) print /x $r20
$1 = 0x0

Perhaps you can try a newer gcc, or file a bug upstream with the gcc
developers. See http://gcc.gnu.org/bugs.html

randolph


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Hi Randolph

Randolph Chung wrote:
> Looks like you found a gcc bug. What happened is that g++ crashed
> (SIGSEGV) while processing your file.
> 
> It seems to be only in g++-3.3. I tried with g++-3.3 and g++-4.0.2 and
> can not reproduce the problem.
[...]
> Perhaps you can try a newer gcc, or file a bug upstream with the gcc
> developers. See http://gcc.gnu.org/bugs.html

Thank you for the help Randolph!!! :)

I've installed g++-3.4 from sarge archives, now I have another problem.
When I try to compile the same source with the correct string and 
includes I get a lot of undefined references, I suppose that it is due 
because LiveMedia libraries was compiled with g++3.3.5 (The default 
sarge compiler).

How can I test it?

Can I download the source code of LiveMedia and compile it from scratch 
with 3.4 g++ and do again the test with new liblivemdia.a library?

Thank You again!

Ciao.

	Fabio.


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Xref: news.gmane.org gmane.linux.ports.parisc:25213

> John David Anglin wrote:
> >> The limited stack trace is:
> >>
> >> Program received signal SIGSEGV, Segmentation fault.
> >> 0x000255fc in pop_everything ()
> >> (gdb) bt
> >> #0  0x000255fc in pop_everything ()
> >> #1  0x0002f834 in cxx_insert_default_attributes ()
> >> #2  0x00072688 in cxx_make_type ()
> >> #3  0x000b7870 in c_common_parse_file ()
> >> #4  0x0022bb8c in rtx_addr_varies_p ()
> >> #5  0x00231224 in rtx_addr_varies_p ()
> >> #6  0x002312e8 in rtx_addr_varies_p ()
> >> #7  0x401ee6e4 in __libc_start_main () from /lib/libc.so.6
> >> #8  0x00016a58 in ?? ()
> > 
> > This stack trace looks wierd at the higher numbers.
> 
> This is because the binary is stripped so the symbol info for static
> functions are lost. All those rtx_address_varies_p() references are
> probably pointing to static functions.

Still seems strange to me.  Are you sure that the start of the unwind
region for each frame matches the symbol printed?  I guess the symbols
are from .dynsym.  Isn't main in .dynsym?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)


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Xref: news.gmane.org gmane.linux.ports.parisc:25214

On 01/12/05, Joel Soete <soete.joel@tiscali.be> wrote:
> > Hi *,
> >
> > I just get a try to this merge (near straightforward :<)) but failled t=
o build
> > in 2 places with the same error:

[...]

> > I doubt it could be the fix as it seems that it was already build witho=
ut that
> > stuff (<http://lkml.org/lkml/2005/11/29/27>)?
> >
> Anyway feel safe to ci (no cvs write access), it's like this in mm1 as we=
ll as
> in <http://www.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git=
>
> repository, though.

I tested you patch and it works for me (TM).
Tested on c3700, 32bit UP, gcc-3.4, running for 10 hours now with
heavy i/o, no problems.
  Max
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: [parisc-linux] kernel panic when reading from a NBD device
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This is a multi-part message in MIME format.

--Multipart=_Sun__4_Dec_2005_20_27_10_+0100_MYIXanv0JyK92nNu
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Hi all,

If you read from a nbd device (b 43 0) you got a kernel panic (attached).

This bug is very similar to the one that Kyle fixed on 2.6.12 with the ide-cdrom kernel panicing when reading from it.

Even if I don't fully understand the problem, I was able to fix the problem using a similar fix.

Please have a look at the attached diff which is certainly not perfect but which is a good start :)

For reference, the Gentoo bug is here :
http://bugs.gentoo.org/show_bug.cgi?id=105414


Regards,
  Guy


--Multipart=_Sun__4_Dec_2005_20_27_10_+0100_MYIXanv0JyK92nNu
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 name="nbd-kernel-panic.log"
Content-Disposition: attachment;
 filename="nbd-kernel-panic.log"
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Backtrace:
 [<101587d4>] blk_queue_bounce+0xf0/0x320
 [<1029efd4>] __make_request+0x70/0x548
 [<1029f880>] generic_make_request+0x150/0x2e8
 [<1029fa88>] submit_bio+0x70/0x120
 [<1016fc34>] submit_bh+0x124/0x194
 [<10172388>] block_read_full_page+0x324/0x370
 [<101512f0>] __do_page_cache_readahead+0x18c/0x2e0
 [<101515f8>] blockable_page_cache_readahead+0x70/0xec
 [<10151838>] page_cache_readahead+0x110/0x238
 [<1014995c>] do_generic_mapping_read+0x5e0/0x718
 [<1014c76c>] __generic_file_aio_read+0x154/0x1d4
 [<1014c920>] generic_file_read+0x90/0xc4
 [<1016c604>] vfs_read+0x84/0x17c
 [<1016ca28>] sys_read+0x54/0xa4
 [<1010d114>] syscall_exit+0x0/0x14


Kernel Fault: Code=26 regs=4e3ac980 (Addr=0000000c)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111000001111 Not tainted
r00-03  00000000 00000420 101587d4 00011210
r04-07  00011200 00000000 00000000 4fc05770
r08-11  4fc03580 4e67cae8 4e3ac7d8 00000000
r12-15  00000000 10505010 10505010 10000000
r16-19  10175b58 00000000 10fd8ce0 ffffffaf
r20-23  10172848 4fc03580 4fc0577c 00000000
r24-27  00000000 00000010 00011200 103fc010
r28-31  4fc03580 00000420 4e3ac980 10152380
sr0-3   00000000 00000000 00000000 00000272
sr4-7   00000000 00000000 00000000 00000000

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr04-07  0000000100000001 0000000000000124 000000003a94d4f7 00000000431bde83
fr08-11  a7d72bedc38f6495 00071341955e038a 000000000019660d 4141e8b900000000
fr12-15  00000000104b3000 104b30001017c100 1046400000000228 4fc2014000000000
fr16-19  fffffff424850e06 0000001f00000000 0000001f00000000 0000001f00000000
fr20-23  0000000000000000 555555551016b810 00000ef80000077c 000016740000000a
fr24-27  000000030efb0956 3fe58edc3bd59924 4008000000000000 413e848000000000
fr28-31  3ff0000000000000 3fe0000000000000 41248f3200000000 412e848000000000

IASQ: 00000000 00000000 IAOQ: 1014ce6c 1014ce70
 IIR: 0cb81099    ISR: 00000000  IOR: 0000000c
 CPU:        0   CR30: 4e3ac000 CR31: 1045c000
 ORIG_R28: 00000000
 IAOQ[0]: mempool_alloc+0x38/0x100
 IAOQ[1]: mempool_alloc+0x3c/0x100
 RP(r2): blk_queue_bounce+0xf0/0x320
Kernel panic - not syncing: Kernel Fault
 
--Multipart=_Sun__4_Dec_2005_20_27_10_+0100_MYIXanv0JyK92nNu
Content-Type: text/x-patch;
 name="nbd-blk_queue_bounce_limit.patch"
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 filename="nbd-blk_queue_bounce_limit.patch"
Content-Transfer-Encoding: 7bit

--- ../linux.orig/drivers/block/nbd.c	2005-09-05 20:05:01.000000000 +0200
+++ drivers/block/nbd.c	2005-12-04 18:56:51.000000000 +0100
@@ -665,6 +665,7 @@
 		 * These structs are big so we dynamically allocate them.
 		 */
 		disk->queue = blk_init_queue(do_nbd_request, &nbd_lock);
+		blk_queue_bounce_limit(disk->queue, BLK_BOUNCE_ANY);
 		if (!disk->queue) {
 			put_disk(disk);
 			goto out;

--Multipart=_Sun__4_Dec_2005_20_27_10_+0100_MYIXanv0JyK92nNu
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From: Kyle McMartin <kyle@mcmartin.ca>
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Subject: Re: [parisc-linux] kernel panic when reading from a NBD device
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On Sun, Dec 04, 2005 at 08:27:10PM +0100, Guy Martin wrote:
>  IAOQ[0]: mempool_alloc+0x38/0x100
>  IAOQ[1]: mempool_alloc+0x3c/0x100
>  RP(r2): blk_queue_bounce+0xf0/0x320

If I had to guess, this is because the pool argument of
mempool_alloc is NULL. As it is directly dereferenced
in mm/mempool.c:mempool_alloc() line 220.

	element = pool->alloc(gfp_temp, pool->pool_data);

Called from mm/highmem.c:blk_queue_bounce() which must be
setting pool to page_pool, which would be uninitialized because
CONFIG_HIGHMEM is not set. I would guess that blk_queue_bounce
is missing this 

		if (q->bounce_pfn >= blk_max_pfn)
			return;

if-clause... blk_max_pfn is set from max_pfn in 
arch/parisc/mm/init.c:setup_bootmem(). q->bounce_pfn is unset because
blk_bounce_queue_limit() hasn't been called.

I'm unsure of the best way to proceed from here, it seems clear
we have a bug of some sort. I'm not sure that your patch is 
generically correct... might want to bring this up with the nbd
folks until we figure out what our bug is here.

Cheers,
	Kyle
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On Sun, Dec 04, 2005 at 08:27:10PM +0100, Guy Martin wrote:
> If you read from a nbd device (b 43 0) you got a kernel panic (attached).
...
> Please have a look at the attached diff which is certainly not perfect
> but which is a good start :)

Yeah, seems like each "block driver" needs to call blk_queue_bounce_limit().
IDE and SCSI lib support do it on behalf of their subsystems.

> --- ../linux.orig/drivers/block/nbd.c	2005-09-05 20:05:01.000000000 +0200
> +++ drivers/block/nbd.c	2005-12-04 18:56:51.000000000 +0100
> @@ -665,6 +665,7 @@
>  		 * These structs are big so we dynamically allocate them.
>  		 */
>  		disk->queue = blk_init_queue(do_nbd_request, &nbd_lock);
> +		blk_queue_bounce_limit(disk->queue, BLK_BOUNCE_ANY);
>  		if (!disk->queue) {

blk_queue_bounce_limit() wants to be called *after* checking
the disk->queue ptr is valid. :)

Calling blk_queue_bounce_limit() sugests max_low_pn needs to be set.
Would the following patch properly set max_low_pfn?
I've stared at various bits of code for the past hour or two and
still aren't sure how this is really supposed to be used.

grant


Index: arch/parisc/mm/init.c
===================================================================
RCS file: /var/cvs/linux-2.6/arch/parisc/mm/init.c,v
retrieving revision 1.22
diff -u -p -r1.22 init.c
--- arch/parisc/mm/init.c	12 Nov 2005 04:06:42 -0000	1.22
+++ arch/parisc/mm/init.c	5 Dec 2005 05:12:57 -0000
@@ -300,6 +300,13 @@ static void __init setup_bootmem(void)
 			max_pfn = start_pfn + npages;
 	}
 
+	/* IOMMU is always used to access "high mem" on those boxes
+	 * that can support enough mem that a PCI device couldn't
+	 * directly DMA to any physical addresses.
+	 * ISA DMA support will need to revisit this.
+	 */
+	max_low_pfn = max_pfn;
+
 	if ((bootmap_pfn - bootmap_start_pfn) != bootmap_pages) {
 		printk(KERN_WARNING "WARNING! bootmap sizing is messed up!\n");
 		BUG();
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Subject: Re: [parisc-linux] HCRX-24 and missing consoles on my C200
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On Wed, Dec 07, 2005 at 06:05:58PM +0100, Fabio Bizzi wrote:
> Hi Everybody!   :)
> 
> Yesterday I've got a monitor and I've connected it to my C200.
> At the boot I've selectet 1280x1024@75Hz VESA and the screen is 
> correctly displayed.
> The Graphic adapter is an HCRX-24 (A4071B) on GSC.
> The distribution is a Sarge with etch kernel 2.6.12-1
> The system boots correctly, but no one consolle is displayed on the 
> monitor only a blank screen (no other problems), I've checked inittab 
> and it's ok with all the consoles started!
> Here some DMESG output:
> 
> Kernel command line: root=/dev/sda5 HOME=/ console=tty0 sti=8/4 
> sti_font=VGA8x16 TERM=linux palo_kernel=2/vmlinux
> 
> 14. Coral SGC Graphics at 0xf8000000 [10/8] { 10, 0x0, 0x004, 0x00077 }
> 
> STI GSC/PCI core graphics driver Version 0.9a
>     id 2bcb015a-9a02587, conforms to spec rev. 8.04
> STI init_graph failed (ret -1, errno 258)
> sti: probe of 10:8 failed with error 1

This has never worked and I don't know why.
See:
	http://lists.debian.org/debian-hppa/2003/10/msg00073.html
	http://lists.debian.org/debian-hppa/2005/02/msg00120.html

> Complete dmesg is attached.
> 
> I've also tried to change boot args in palo from sti=8/4 to sti=10/0 but 
>  it didin't worked!

I've previously asserted one does NOT need the sti= parameter if
there is only gfx card in the system and it's being used as the
firmware console. I don't know if that's still true.

> At Parisc-Linux Hardware Database is reported that Coral SGC Graphics is 
> supported and the version is the same "0x0,0x4,0x77" 
> (http://hwdb.parisc-linux.org/view.php?type=padevice&name=Coral%20SGC%20Graphics)
> 
> So, why this damned kernel does not initialize it? :)

STI firmware is failing to initialize itself, not the kernel
initializing the card.

> P.S. I've experienced some mail server problems, i'm sorry for eventual 
> duouble posts!

Double would have been nice. ;)
Next time, check the mailing list archives to determine if a particular
email reached the list(s).

ciao,
grant
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Grant Grundler wrote:
> This has never worked and I don't know why.
> See:
> 	http://lists.debian.org/debian-hppa/2003/10/msg00073.html
> 	http://lists.debian.org/debian-hppa/2005/02/msg00120.html

Thank You Grant, helpfully as usual. :)
Please, can you suggest to me any video card that is working on a C200 
with linux (24 bpp)?

> STI firmware is failing to initialize itself, not the kernel
> initializing the card.

I'm bit confused about it, what do you mean with "the firmware is 
failing to initialize itself"?

>>P.S. I've experienced some mail server problems, i'm sorry for eventual 
>>duouble posts!
> 
> 
> Double would have been nice. ;)
> Next time, check the mailing list archives to determine if a particular
> email reached the list(s).
> 

I'm really sorry for this annoyng issue, next time I'll do as you suggested.

I've asked some help to the list owner.

Thank you again!

Ciao.

	Fabio.


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On Wed, Dec 07, 2005 at 07:03:52PM +0100, Fabio Bizzi wrote:
> >STI firmware is failing to initialize itself, not the kernel
> >initializing the card.
> 
> I'm bit confused about it, what do you mean with "the firmware is 
> failing to initialize itself"?

STI is a seperate firmware from PDC and IODC. We have to invoke
the initializaton functions from the OS to get it started.
I'm not STI expert though. And we do have public documentation
for STI that you are "encouraged" to read :^)

	http://ftp.parisc-linux.org/docs/arch/sti.pdf

And sorry, I don't know offhand if any 24bpp graphics cards will work.
Perhaps some are listed in the parisc graphics FAQ or
http://wiki.parisc-linux.org/.

> I'm really sorry for this annoyng issue, next time I'll do as you suggested.

It's not that bad...don't lose any sleep over it.

> Thank you again!

welcome.

ciao!
grant
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On Wed, Dec 07, 2005 at 11:01:30AM -0700, Grant Grundler wrote:
> > STI GSC/PCI core graphics driver Version 0.9a
> >     id 2bcb015a-9a02587, conforms to spec rev. 8.04
> > STI init_graph failed (ret -1, errno 258)
> > sti: probe of 10:8 failed with error 1
>

Someone should probably turn on debugging. Edit
drivers/video/sticore.h and change the initial #if 0 to #if 1 and
rebuild and boot.

As far as I know, this is failing the initial call to STI init_graph,
I suspect either it doesn't like the default init values, or something
is not quite right when setting up the glob_cfg. As I understand it,
we set up the glob_cfg structures with nothing but the region pointers,
and then call init_graph to set up the rest of the context which is passed
between every further called STI function.

Or the STI rom is completely broken on this card and HP-UX uses software
instead of the firmware routines.

I think I have a HCRX here (A4070 with A4072), I can try and fix this
but not until at least January.

Cheers,
	Kyle
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On Wed, Dec 07, 2005 at 01:29:13PM -0500, Kyle McMartin wrote:
> Or the STI rom is completely broken on this card and HP-UX uses software
> instead of the firmware routines.

HPUX *never* supported this card on C-class boxes.
See page 157 (pdf page #) of C200 owners manual:
NOTICE: The A4077A Color Graphics Card, A4078A Dual Color Graphics Card,
        A4079B HCRX-8Z graphics adapter, and the A4071B HCRX-24 graphics
        adapter with the A4072A Z Accelerator attached are not supported
        in the Model C160/C180.

getting it working might be quite "challenging". :)

grant


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Xref: news.gmane.org gmane.linux.ports.parisc:25223

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--------------070302050001060700010402
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Hi Everybody! :)

Yesterday I've got a monitor and I've connected it to my C200.
At the boot I've selectet 1280x1024@75Hz VESA and the screen is 
correctly displayed.
The Graphic adapter is an HCRX-24 (A4071B) on GSC.
The distribution is a Sarge with etch kernel 2.6.12-1
The system boots correctly, but no one consolle is displayed on the 
monitor only a blank screen (no other problems), I've checked inittab 
and it's ok with all the consoles started!
Here some DMESG output:

Kernel command line: root=/dev/sda5 HOME=/ console=tty0 sti=8/4 
sti_font=VGA8x16 TERM=linux palo_kernel=2/vmlinux

14. Coral SGC Graphics at 0xf8000000 [10/8] { 10, 0x0, 0x004, 0x00077 }

STI GSC/PCI core graphics driver Version 0.9a
     id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI init_graph failed (ret -1, errno 258)
sti: probe of 10:8 failed with error 1

Complete dmesg is attached.

I've also tried to change boot args in palo from sti=8/4 to sti=10/0 but 
  it didin't worked!

At Parisc-Linux Hardware Database is reported that Coral SGC Graphics is 
supported and the version is the same "0x0,0x4,0x77" 
(http://hwdb.parisc-linux.org/view.php?type=padevice&name=Coral%20SGC%20Graphics)

So, why this damned kernel does not initialize it? :)

PA-GURUS please help me! :)

Thanks!!!

Ciao.

	Fabio.

--------------070302050001060700010402
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root
Password: 
Last login: Tue Dec  6 22:45:47 2005 on ttyS0
Linux c200 2.6.12-1-parisc #1 Tue Sep 27 10:16:14 UTC 2005 parisc GNU/Linux

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
c200:~# dmesg 
Linux version 2.6.12-1-parisc (buildd@sarti) (gcc version 4.0.2 (Debian 4.0.1-9)) #1 Tue Sep 27 10:16:14 UTC 2005
FP[0] enabled: Rev 0 Model 14
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 000059d0 00000481 00000000 00000002 77d9d5ae 100000f0 00000008 000000b2 000000b2
vers  00000400
CPUID vers 14 rev 16 (0x000001d0)
capabilities 0x2
model 9000/782/C200+
Total Memory: 768 MB
initrd: 3fc99000-3ffee000
initrd: reserving 2fc99000-2ffee000 (mem_max 30000000)
On node 0 totalpages: 196608
  DMA zone: 196608 pages, LIFO batch:31
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
LED display at f0190001 registered
Built 1 zonelists
Kernel command line: root=/dev/sda5 HOME=/ console=tty0 sti=8/4 sti_font=VGA8x16 TERM=linux palo_kernel=2/vmlinux
PID hash table entries: 4096 (order: 12, 65536 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 786432k available
Calibrating delay loop... 398.95 BogoMIPS (lpj=1994752)
Security Framework v1.0.0 initialized
Capability LSM initialized
Mount-cache hash table entries: 512
checking if image is initramfs...it isn't (bad gzip magic numbers); looks like an initrd
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. U2-IOA BC Runway Port at 0xfff88000 [8] { 12, 0xf, 0x580, 0x0000b }
2. Dino PCI Bridge at 0xf2000000 [8/0] { 13, 0x3, 0x680, 0x0000a },  additional addresses: 0xf2800000 
3. Raven U/L2 Dino RS-232 at 0xf2003000 [8/0/63] { 10, 0x0, 0x006, 0x0008c }
4. Raven+ w SE FWSCSI Core BA at 0xffd00000 [8/16] { 11, 0x0, 0x056, 0x00081 },  additional addresses: 0xffd0c000 0xffc00000 
5. Raven+ w SE FWSCSI Core RS-232 at 0xffd05000 [8/16/4] { 10, 0x0, 0x056, 0x0008c }
6. Raven+ w SE FWSCSI Core SCSI at 0xffd06000 [8/16/5] { 10, 0x0, 0x056, 0x00082 }
7. Raven+ w SE FWSCSI Core Centronics at 0xffd02000 [8/16/0] { 10, 0x0, 0x056, 0x00074 },  additional addresses: 0xffd01000 0xffd03000 
8. Raven+ w SE FWSCSI Core Audio at 0xffd04000 [8/16/1] { 10, 0x4, 0x056, 0x0007b }
9. Raven+ w SE FWSCSI Core PS/2 Port at 0xffd08000 [8/16/7] { 10, 0x0, 0x056, 0x00084 }
10. Raven+ w SE FWSCSI Core PS/2 Port at 0xffd08100 [8/16/8] { 10, 0x0, 0x056, 0x00084 }
11. U2-IOA BC GSC+ Port at 0xf203f000 [8/63] { 7, 0x1, 0x501, 0x0000c }
12. Raven U/L2 Dino PS/2 Port at 0xf2001000 [8/1] { 10, 0x0, 0x006, 0x00096 }
13. U2-IOA BC Runway Port at 0xfff8a000 [10] { 12, 0xf, 0x580, 0x0000b }
14. Coral SGC Graphics at 0xf8000000 [10/8] { 10, 0x0, 0x004, 0x00077 }
15. U2-IOA BC GSC+ Port at 0xf103f000 [10/63] { 7, 0x1, 0x501, 0x0000c }
16. Cujo PCI Bridge at 0xf1000000 [10/0] { 13, 0x1, 0x682, 0x0000a }
17. Dino RS-232 at 0xf1003000 [10/3] { 10, 0x0, 0x007, 0x0008c }
18. Raven U 200 (9000/780/C200) at 0xfffa0000 [32] { 0, 0x0, 0x59d, 0x00004 }
19. Memory at 0xfffb1000 [49] { 1, 0x0, 0x05d, 0x00009 }
CPU(s): 1 x PA8200 (PCX-U+) at 200.000000 MHz
Whole cache flush 357333 cycles, flushing 273117008 bytes 68094819 cycles
Setting cache flush threshold to 40 (1 CPUs online)
Found U2 at 0xfff88000
Found U2 at 0xfff8a000
Lasi version 0 at 0xffd00000 found.
Dino version 3.1 found at 0xf2000000
Cujo version 2.0 found at 0xf1000000
Enabling Cujo 2.0 bug workaround
Cujo: No PCI devices enabled.
SCSI subsystem initialized
TC classifier action (bugs to netdev@vger.kernel.org cc hadi@cyberus.ca)
unwind_init: start = 0x1033aaa0, end = 0x1035a120, entries = 8040
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Initializing Cryptographic API
PDC Stable Storage facility v0.09
Soft power switch enabled, polling @ 0xf0140000.
STI GSC/PCI core graphics driver Version 0.9a
    id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI init_graph failed (ret -1, errno 258)
sti: probe of 10:8 failed with error 1
Generic RTC Driver v1.07
serio: GSC PS/2 keyboard port at 0xffd08000 irq 20 @ 8:16:7
serio: GSC PS/2 mouse port at 0xffd08100 irq 20 @ 8:16:8
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq = 16) is a 16550A
ttyS1 at MMIO 0xf2003800 (irq = 21) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
mice: PS/2 mouse device common for all mice
NET: Registered protocol family 2
input: AT Raw Set 2 keyboard on 8:16:7
IP: routing cache hash table of 8192 buckets, 64Kbytes
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 6, 262144 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
NET: Registered protocol family 1
NET: Registered protocol family 17
RAMDISK: cramfs filesystem found at block 0
RAMDISK: Loading 3412KiB [1 disk] into ram disk... |/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/done.
VFS: Mounted root (cramfs filesystem) readonly.
Freeing unused kernel memory: 332k freed
sym0: <875> rev 0x4 at pci 0000:00:13.0 irq 22
sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.1
  Vendor: QUANTUM   Model: ATLAS10K2-TY367L  Rev: DA40
  Type:   Direct-Access                      ANSI SCSI revision: 03
 target0:0:6: tagged command queuing enabled, command queue depth 16.
 target0:0:6: Beginning Domain Validation
 target0:0:6: asynchronous.
WIDTH IS 1
 target0:0:6: wide asynchronous.
 target0:0:6: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 16)
 target0:0:6: Ending Domain Validation
53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
scsi1: 53c710 rev 2 
scsi1 : LASI SCSI 53c700
  Vendor: PLEXTOR   Model: CD-ROM PX-12TS    Rev: 1.02
  Type:   CD-ROM                             ANSI SCSI revision: 02
 target1:0:3: Beginning Domain Validation
 target1:0:3: asynchronous.
 target1:0:3: Domain Validation skipping write tests
 target1:0:3: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 8)
 target1:0:3: Ending Domain Validation
usbcore: registered new driver hub
usbcore: registered new driver usbkbd
drivers/usb/input/usbkbd.c: :USB HID Boot Protocol keyboard driver
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.01:USB HID core driver
Linux Tulip driver version 1.1.13 (December 15, 2004)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 7809 advertising 0061.
eth0: Digital DS21142/DS21143 Tulip rev 48 at 80000080, 00:60:B0:EA:14:4A, IRQ 23.
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
SCSI device sda: 71132960 512-byte hdwr sectors (36420 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 71132960 512-byte hdwr sectors (36420 MB)
SCSI device sda: drive cache: write back
 /dev/scsi/host0/bus0/target6/lun0: p1 p2 p3 < p5 p6 >
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 3, lun 0
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
Adding 1317288k swap on /dev/sda6.  Priority:-1 extents:1
EXT3 FS on sda5, internal journal
ehci_hcd: block sizes: qh 128 qtd 96 itd 192 sitd 96
ohci_hcd: 2004 Nov 08 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci_hcd: block sizes: ed 64 td 64
Attached scsi generic sg0 at scsi0, channel 0, id 6, lun 0,  type 0
Attached scsi generic sg1 at scsi1, channel 0, id 3, lun 0,  type 5
NET: Registered protocol family 10
Disabled Privacy Extensions on device 103b367c(lo)
IPv6 over IPv4 tunneling driver
eth0: no IPv6 routers present
c200:~# uname -a
Linux c200 2.6.12-1-parisc #1 Tue Sep 27 10:16:14 UTC 2005 parisc GNU/Linux
c200:~# 
--------------070302050001060700010402--


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Hi all,

Since 2.6.12, the parport_gsc driver is not useable due to some changes in the parport driver.
A 'select PARPORT_NOT_PC' line in the Kconfig was added to every non-pc driver but the gsc one.

Patching the kernel with the attached fix makes the parport driver working again.

Happy printing :)

  Guy

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diff -uNr linux-2.6.14.orig/drivers/parport/Kconfig linux-2.6.14/drivers/parport/Kconfig
--- linux-2.6.14.orig/drivers/parport/Kconfig	2005-12-06 20:38:34.000000000 +0100
+++ linux-2.6.14/drivers/parport/Kconfig	2005-12-06 20:41:22.000000000 +0100
@@ -121,6 +121,7 @@
 	tristate
 	default GSC
 	depends on PARPORT
+	select PARPORT_NOT_PC
 
 config PARPORT_SUNBPP
 	tristate "Sparc hardware (EXPERIMENTAL)"

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From: Andy Walker <ajwalker@broadpark.no>
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Subject: Re: [parisc-linux] HCRX-24 and missing consoles on my C200
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Xref: news.gmane.org gmane.linux.ports.parisc:25225

Fabio wrote (repeatedly ;-)
 > Hi Everybody!   :)
 >
 > Yesterday I've got a monitor and I've connected it to my C200.
 > At the boot I've selectet 1280x1024 at 75Hz VESA and the screen is
 > correctly displayed.
 > The Graphic adapter is an HCRX-24 (A4071B) on GSC.
 > The distribution is a Sarge with etch kernel 2.6.12-1
 > The system boots correctly, but no one consolle is displayed on the
 > monitor only a blank screen (no other problems), I've checked inittab
 > and it's ok with all the consoles started!
 > Here some DMESG output:
 >
 > Kernel command line: root=/dev/sda5 HOME=/ console=tty0 sti=8/4
 > sti_font=VGA8x16 TERM=linux palo_kernel=2/vmlinux
 >
 > 14. Coral SGC Graphics at 0xf8000000 [10/8] { 10, 0x0, 0x004, 0x00077}
 >
 > STI GSC/PCI core graphics driver Version 0.9a
 >      id 2bcb015a-9a02587, conforms to spec rev. 8.04
 > STI init_graph failed (ret -1, errno 258)
 > sti: probe of 10:8 failed with error 1
 >

First things first - this ain't really a Coral SGC at all. Its a
Hyperbowl card (HCRX-24/A4071B). The lazy ***s in the HP graphics
hardware group reused the card identifiers!

The "init_graph failed" is worrying - that same card with the same id
is successfully detected and initialized in my B132L, and I'm pretty
sure the same was true in my C180 (kernel 2.6.11-rc1-pa4).

 > I've also tried to change boot args in palo from sti=8/4 to sti=10/0
 > but it didin't worked!

That ought to be sti=10/8 according to your dmesg. But as Grant said, it
shouldn't strictly be needed as long as there's just the one card in the 
box.

 > At Parisc-Linux Hardware Database is reported that Coral SGC Graphics 
 > is supported and the version is the same "0x0,0x4,0x77"
 > (http://hwdb.parisc-linux.org/view.php?
 >       type=padevice&name=Coral%20SGC%20Graphics)

Ignore this - believe me, you don't have a Coral SGC.

 > Thanks!!!
 >
 > P.S. I've experienced some mail server problems, i'm sorry for
 > eventual duouble posts!

I sent Helge Deller an A4071B a while back so he could work on the
stifb driver when he had time. I guess he hasn't had time.

I'm gonna try a couple of tests on the B132L this evening - first
thing is to make the Hyperbowl the console and see what happens.

-Andy
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Subject: Re: [parisc-linux] HCRX-24 and missing consoles on my C200
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Xref: news.gmane.org gmane.linux.ports.parisc:25226

On Wed, Dec 07, 2005 at 11:54:38AM -0700, Grant Grundler wrote:
> HPUX *never* supported this card on C-class boxes.
> See page 157 (pdf page #) of C200 owners manual:
> NOTICE: The A4077A Color Graphics Card, A4078A Dual Color Graphics Card,
>         A4079B HCRX-8Z graphics adapter, and the A4071B HCRX-24 graphics
>         adapter with the A4072A Z Accelerator attached are not supported
>         in the Model C160/C180.
> 
> getting it working might be quite "challenging". :)

I think I've already taken the torch on enough challenging HP graphics
problems... mumble. I'll pass on this one.

:)
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Subject: Re: [parisc-linux] HCRX-24 and missing consoles on my C200
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On Wed, Dec 07, 2005 at 01:29:13PM -0500, Kyle McMartin wrote:
> I think I have a HCRX here (A4070 with A4072), I can try and fix this
> but not until at least January.

This looks like the same card that I have:

1. Coral SGC Graphics at 0xf4000000 [0] { 10, 0x0, 0x004, 0x00077 }
...
STI GSC/PCI core graphics driver Version 0.9a
id 2bcb015a-9a02587, conforms to spec rev. 8.04
graphics card name: HPA4071B_LZ

I tested this recently on my 715/100:

http://lists.parisc-linux.org/pipermail/parisc-linux/2005-November/027654.html

(Worked fine, except for a few small glitches.)
-- 
Stuart Brady
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Subject: Re: [parisc-linux] HCRX-24 and missing consoles on my C200
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> On Wed, Dec 07, 2005 at 11:01:30AM -0700, Grant Grundler wrote:
>> > STI GSC/PCI core graphics driver Version 0.9a
>> >     id 2bcb015a-9a02587, conforms to spec rev. 8.04
>> > STI init_graph failed (ret -1, errno 258)
>> > sti: probe of 10:8 failed with error 1
>
> Someone should probably turn on debugging. Edit
> drivers/video/sticore.h and change the initial #if 0 to #if 1 and
rebuild and boot.
>
> As far as I know, this is failing the initial call to STI init_graph, I
suspect either it doesn't like the default init values, or something is
not quite right when setting up the glob_cfg. As I understand it, we set
up the glob_cfg structures with nothing but the region pointers, and
then call init_graph to set up the rest of the context which is
passed
> between every further called STI function.
>
> Or the STI rom is completely broken on this card and HP-UX uses software
instead of the firmware routines.
>
> I think I have a HCRX here (A4070 with A4072), I can try and fix this
but not until at least January.
>
> Cheers,
> 	Kyle
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

Hi folks,

Here's a datapoint with 2.6.15-rc5-pa1 on a B132L

Linux version 2.6.15-rc5-pa1 (root@weasel) (gcc version 3.3.5 (Gentoo Linux
3.3.5-r1, pie-8.7.7)) #1 Wed Dec 7 23:02:54 CET 2005

Kernel command line: root=/dev/sda2 sti=8/8 stifb=bpp:0 console=tty0
sti_font=VGA8x16 palo_kernel=2/boot/vmlinux

Found devices:
15. Coral SGC Graphics at 0xf4000000 [8/8] { 10, 0x0, 0x004, 0x00077 } 16.
Gecko GSC Core Graphics at 0xf8000000 [8/24] { 10, 0x0, 0x016, 0x00085 },
additional addresses: 0xf0011000

STI GSC/PCI core graphics driver Version 0.9a
    id 2bcb015a-9a02587, conforms to spec rev. 8.04
    graphics card name: HPA4071B
    id 2d08c0a7-9a02587, conforms to spec rev. 8.07
    graphics card name: INTERNAL_EG_1280
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
Console: switching to colour frame buffer device 160x64
fb0: stifb 1280x1024-32 frame buffer device, HPA4071B, id: 2bcb015a, mmio:
0xf4100000
fb1: stifb 1280x1024-8 frame buffer device, INTERNAL_EG_1280, id:
2d08c0a7, mmio:
0xf8100000

Note that the A4071B/HCRX24 gets detected just fine. Its set in PDC as
the console path, and also via the sti=8/8 parameter.

Nothing crashes, but the console is unusable. Most of the output is
black on black, though I get bits of text in magenta, yellow and green
depending on the intended colour. Tux has a bright green background and
is otherwise pretty psychedelic. Back to Vis-EG for the time being.

As far as A4071B on C-Class goes, my company ran 50-60 C110's with that
card and never had any trouble (HP-UX 10.20). I'm pretty sure I've had
one in my C180 and it behaved exactly as it does in the B132L. If I get
time I'll check tonight. C180 and C200 are basically the same Raven
architecture, so if there's a general problem with initializing the card
on Ravens it should show up.

Fabio: have you got the latest firmware on that C200? (apologies if you've
already mentioned that before.)

ftp://ftp.itrc.hp.com/firmware_patches/hp/cpu/PF_CC2X0063.txt
ftp://ftp.itrc.hp.com/firmware_patches/hp/cpu/PF_CC2X0063

-Andy




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On Thu, Dec 08, 2005 at 11:56:32AM +0100, Andy Walker wrote:
> Note that the A4071B/HCRX24 gets detected just fine. Its set in PDC as
> the console path, and also via the sti=8/8 parameter.
> 
> Nothing crashes, but the console is unusable. Most of the output is
> black on black, though I get bits of text in magenta, yellow and green
> depending on the intended colour. Tux has a bright green background and
> is otherwise pretty psychedelic. Back to Vis-EG for the time being.

Have you tried running X, and then switching back to the console?  That
at least gets it working for me...  I wonder which devices are affected
by this?  What about the A4071A?

I've tried reading the stifb source but I'm quite baffled by it. :-(
-- 
Stuart Brady


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On Sun, Dec 04, 2005 at 08:39:21PM -0500, Kyle McMartin wrote:
> 		if (q->bounce_pfn >= blk_max_pfn)
> 			return;
>

My mistake, blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH) is called during
during queue init:

nbd.c:667
		disk->queue = blk_init_queue(do_nbd_request, &nbd_lock);

blk_init_queue() calls blk_init_queue_node() which calls

ll_rw_blk.c:1749
	blk_queue_make_request(q, __make_request);

ll_rw_blk.c:261
	/*
	 * by default assume old behaviour and bounce for any highmem page
	 */
	blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH);

This meant that q->bounce_pfn was 0, since:

#define BLK_BOUNCE_HIGH		((u64)blk_max_low_pfn << PAGE_SHIFT)

blk_max_low_pfn was 0, so BLK_BOUNCE_HIGH was 0. 

This sets bounce_pfn in blk_queue_bounce_limit:523 to 0, which means

blk_queue_bounce_limit():

	if (bounce_pfn < blk_max_low_pfn) {
		BUG_ON(dma_addr < BLK_BOUNCE_ISA);
		init_emergency_isa_pool();
		q->bounce_gfp = GFP_NOIO | GFP_DMA;
	} else
		q->bounce_gfp = GFP_NOIO;

	q->bounce_pfn = bounce_pfn;

Sets bounce_gfp to GFP_NOIO, and q->bounce_pfn = 0;

Much later when blk_queue_bounce is called,

highmem.c:477
	if (!(q->bounce_gfp & GFP_DMA)) {
		if (q->bounce_pfn >= blk_max_pfn)
			return;
		pool = page_pool;
	} else {
		BUG_ON(!isa_page_pool);
		pool = isa_page_pool;
	}

	/*
	 * slow path
	 */
	__blk_queue_bounce(q, bio_orig, pool);

Fails the q->bounce_pfn (0) >= blk_max_pfn (0xbig), so pool is set
to page_pool, and we try to bounce. Inside __blk_queue_bounce we
call mempool_alloc(pool, ..);

mempool.c:220
	element = pool->alloc(gfp_temp, pool->pool_data);

Which dereferences pool, which is NULL, because we don't have
CONFIG_HIGHMEM set, so it wasn't initialized,

highmem.c:51
#ifdef CONFIG_HIGHMEM

static void *page_pool_alloc(gfp_t gfp_mask, void *data)
{
	return alloc_page(gfp_mask);
}

And kaboom, we die in an unfortunate way.

With max_low_pfn set, the 
                if (q->bounce_pfn >= blk_max_pfn)
gets hit, and we simply return instead of attempting to bounce
something.

I'm willing to bet this also fixes our ide-lib.c bug we hit earlier in
a cleaner way than changing the structure of that code.

Cheers,
	Kyle
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Subject: Re: [parisc-linux] Linux-Vserver?
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Xref: news.gmane.org gmane.linux.ports.parisc:25231

Hello all,

Just a small update, till now:

	o latest patch-2.6.14.3-vs2.1.0-rc10.diff against our latest 2.6.14
	  (cvs dated 20051111) merged with upstream patch-2.6.14.3.bz2 boot
	  fine on c110, d380 (32bit up).
	o and preliminary testme.sh-0.14 finaly passed with success on the c110
	  (just need a small patch of util-vserver_0.30.209)
# ./testme.sh-0.14
Linux-VServer Test [V0.14] Copyright (C) 2003-2005 H.Poetzl
chcontext is working.
chbind is working.
Linux 2.6.14.3-vs2.1.0-rc10-pa0-c110 parisc/0.30.209/0.30.209 [Ea] (0)
VCI:  0002:0001 263 03000116
---
[000]# succeeded.
[001]# succeeded.
[011]# succeeded.
[031]# succeeded.
[101]# succeeded.
[102]# succeeded.
[201]# succeeded.
[202]# succeeded.

;-)

Hope now to be able to go further next week.

Joel Soete wrote:
[...]

Matthew,

(don't know if you're still the maintainer of this stuff)
but any way have you some good advise about following:
> 
> PS: btw I just read:
> --- linux-2.6.14.2/arch/parisc/kernel/sys_parisc32.c    2005-06-22 02:37:56 +0200
> +++ linux-2.6.14.2-vs2.1.0-rc8/arch/parisc/kernel/sys_parisc32.c       
> 2005-10-29 04:06:52 +0200
> @@ -657,6 +657,7 @@ asmlinkage int sys32_sysinfo(struct sysi
> 
>         do {
>                 seq = read_seqbegin(&xtime_lock);
> +               /* FIXME requires vx virtualization */
>                 val.uptime = jiffies / HZ;
> 
>                 val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
> ====<>====
> 
> according to the comment:
> /* We used to call sys_sysinfo and translate the result.  But sys_sysinfo
>  * undoes the good work done elsewhere, and rather than undoing the
>  * damage, I decided to just duplicate the code from sys_sysinfo here.
>  */
> 
> could it be look like as in kernel/timer.c:
> @@ -1263,6 +1273,8 @@ asmlinkage long sys_sysinfo(struct sysin
>                         tp.tv_nsec = tp.tv_nsec - NSEC_PER_SEC;
>                         tp.tv_sec++;
>                 }
> +               if (vx_flags(VXF_VIRT_UPTIME, 0))
> +                       vx_vsi_uptime(&tp, NULL);
>                 val.uptime = tp.tv_sec + (tp.tv_nsec ? 1 : 0);
> 
>                 val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
> ====<>====
> 

Tia,
	Joel
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Xref: news.gmane.org gmane.linux.ports.parisc:25232

> Hello all,
> 
> Just a small update, till now:
> 
> 	o latest patch-2.6.14.3-vs2.1.0-rc10.diff against our latest 2.6.14
> 	  (cvs dated 20051111) merged with upstream patch-2.6.14.3.bz2 boot
> 	  fine on c110, d380 (32bit up).
> 	o and preliminary testme.sh-0.14 finaly passed with success on the c11=
0
> 	  (just need a small patch of util-vserver_0.30.209)
> # ./testme.sh-0.14
> Linux-VServer Test [V0.14] Copyright (C) 2003-2005 H.Poetzl
> chcontext is working.
> chbind is working.
> Linux 2.6.14.3-vs2.1.0-rc10-pa0-c110 parisc/0.30.209/0.30.209 [Ea] (0)
> VCI:  0002:0001 263 03000116
> ---
> [000]# succeeded.
> [001]# succeeded.
> [011]# succeeded.
> [031]# succeeded.
> [101]# succeeded.
> [102]# succeeded.
> [201]# succeeded.
> [202]# succeeded.
> 
> ;-)
> 
> Hope now to be able to go further next week.
> 
I named my vserver DebSid (;-) ) with sever name debvs007 (just because t=
hat'
actualy my 7th linux system ;-) and very dream to enlarge this famer lol)=
:
# vserver-stat 
CTX   PROC    VSZ    RSS  userTIME   sysTIME    UPTIME NAME
0       68 134.3M  49.3M   7m32s62  28m01s19   4h14m54 root server
49153   15  76.8M  22.5M   0m05s31   0m14s53   2h47m02 DebSid

enter this vserver show me:
root@debvs007:~# ps -ef      
UID        PID  PPID  C STIME TTY          TIME CMD
root         1     0  0 14:05 ?        00:00:52 init [2]  
root      5294     1  0 14:05 ?        00:00:00 /sbin/syslogd
103       5318     1  0 14:05 ?        00:00:00 /usr/bin/dbus-daemon-1 --=
system
root      5340     1  0 14:05 ?        00:00:00 /usr/bin/netserver
root      5355     1  0 14:05 ?        00:00:02 /usr/bin/X11/xfs -daemon
root      5367     1  0 14:05 ?        00:00:00 /usr/sbin/xinetd -pidfile=

/var/run/xinetd.pid -stayalive
daemon    5408     1  0 14:05 ?        00:00:00 /usr/sbin/atd
root      5411     1  0 14:05 ?        00:00:00 /usr/sbin/cron
root      5426     1  0 14:05 ?        00:00:00 /usr/sbin/gdm
root      5704  5693  0 14:37 pts/1    00:00:01 /bin/bash -login
root      6418     1  0 15:51 ?        00:00:00 /usr/sbin/sshd
root      6421  6418  0 15:52 ?        00:00:00 sshd: jso [priv] 
jso       6423  6421  0 15:52 ?        00:00:00 sshd: jso@pts/6  
jso       6424  6423  0 15:52 pts/6    00:00:00 -bash
root      6434  6424  0 15:52 pts/6    00:00:00 su -
root      6435  6434  0 15:52 pts/6    00:00:00 -su
root      7573  5704  0 17:02 pts/1    00:00:00 ps -ef

And having stolen a ip address, I can also ssh :-)
> ssh 10.xx.xx.111
Linux patst007 2.6.15-rc1-pa3-d32up #8 Mon Nov 14 13:01:04 CET 2005 paris=
c
GNU/Linux

The programs included with the Debian GNU/Linux system are free software;=

the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
You have new mail.
Last login: Tue Dec 13 15:50:52 2005 from wsjso.internal.mce.org
debvs007:~ $ su -
Password: 
root@debvs007:~# ls -lrt 
total 24
drwx------ 2 root root 4096 Nov 23  2003 Mail
-rw-r--r-- 1 root root   26 Apr 20  2005 Vjso
drwxr-xr-x 2 root root 4096 Oct  5 15:26 tmp
drwxr-xr-x 2 root root 4096 Oct  5 15:51 var
drwxr-xr-x 2 root root 4096 Nov  3 19:09 bin
drwxr-xr-x 2 root root 4096 Dec 13 14:19 Man
[...]

I just have to gather some info from place to place to reach to re-used m=
y
existing chroot disk without loosing time and energy to deboostrap and
re-custumised it.

Now, just have to finalise startup scripts ;-) and obviously many much mo=
re
test but basicaly seems to already realise a dream.

Hth,
    Joel

 =0A=0A-------------------------------------------------------=0ANOTE! My=
 email address is changing to ... @scarlet.be=0APlease make the necessary=
 changes in your address book. =0A=0A

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Subject: Re: [parisc-linux] Linux-Vserver: finaly seems to work basicaly ;-)
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On Tue, Dec 13, 2005 at 05:40:03PM +0100, Joel Soete wrote:
> I named my vserver DebSid (;-) ) with sever name debvs007 (just because that'
> actualy my 7th linux system ;-) and very dream to enlarge this famer lol):
>

This is really cool.

Cheers,
	Kyle 
_______________________________________________
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Subject: [parisc-linux] Re: -pa2 broke N4000/A500
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On Mon, Dec 12, 2005 at 08:11:31AM -0700, Matthew Wilcox wrote:
> 
> Grant, your lba_pci changes to support rp3440 broke A500 and N4000.
> CVS2_6_15_RC5_PA1 boots fine.

Willy,
Just wanted to ACK on p-l mailing list that I did break this - apologies again.

I've posted the following patch (on top of what willy committed)
to parisc-linux-cvs mailing list and it only needs testing on C3000.

thanks,
grant

> willy@palinux:~/linux-2.6$ cvs up -rCVS2_6_15_RC5_PA2
> U Makefile
> U drivers/parisc/lba_pci.c
...


Index: drivers/parisc/lba_pci.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/lba_pci.c,v
retrieving revision 1.35
diff -u -p -r1.35 lba_pci.c
--- drivers/parisc/lba_pci.c	12 Dec 2005 15:50:34 -0000	1.35
+++ drivers/parisc/lba_pci.c	12 Dec 2005 17:21:26 -0000
@@ -809,8 +809,7 @@ lba_fixup_bus(struct pci_bus *bus)
 		}
 		/* advertize Host bridge resources to PCI bus */
 		bus->resource[0] = &(ldev->hba.io_space);
-		bus->resource[1] = &(ldev->hba.lmmio_space);
-		i = 2;
+		i = 1;
 
 		if (ldev->hba.elmmio_space.start) {
 			err = request_resource(&iomem_resource,
@@ -831,7 +830,7 @@ lba_fixup_bus(struct pci_bus *bus)
 
 		/*   Overlaps with elmmio can (and should) fail here.
 		 *   We will prune (or ignore) the distributed range.

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Patch tested on my c3k.
Seems OK.
Bootlog is attached.

Helge

On Wednesday 14 December 2005 20:02, Grant Grundler wrote:
> On Mon, Dec 12, 2005 at 08:11:31AM -0700, Matthew Wilcox wrote:
> > 
> > Grant, your lba_pci changes to support rp3440 broke A500 and N4000.
> > CVS2_6_15_RC5_PA1 boots fine.
> 
> Willy,
> Just wanted to ACK on p-l mailing list that I did break this - apologies again.
> 
> I've posted the following patch (on top of what willy committed)
> to parisc-linux-cvs mailing list and it only needs testing on C3000.
> 
> thanks,
> grant
> 
> > willy@palinux:~/linux-2.6$ cvs up -rCVS2_6_15_RC5_PA2
> > U Makefile
> > U drivers/parisc/lba_pci.c
> ...
> 
> 
> Index: drivers/parisc/lba_pci.c
> ===================================================================
> RCS file: /var/cvs/linux-2.6/drivers/parisc/lba_pci.c,v
> retrieving revision 1.35
> diff -u -p -r1.35 lba_pci.c
> --- drivers/parisc/lba_pci.c	12 Dec 2005 15:50:34 -0000	1.35
> +++ drivers/parisc/lba_pci.c	12 Dec 2005 17:21:26 -0000
> @@ -809,8 +809,7 @@ lba_fixup_bus(struct pci_bus *bus)
>  		}
>  		/* advertize Host bridge resources to PCI bus */
>  		bus->resource[0] = &(ldev->hba.io_space);
> -		bus->resource[1] = &(ldev->hba.lmmio_space);
> -		i = 2;
> +		i = 1;
>  
>  		if (ldev->hba.elmmio_space.start) {
>  			err = request_resource(&iomem_resource,
> @@ -831,7 +830,7 @@ lba_fixup_bus(struct pci_bus *bus)
>  
>  		/*   Overlaps with elmmio can (and should) fail here.
>  		 *   We will prune (or ignore) the distributed range.
> -
> +		 *
>  		 *   FIXME: SBA code should register all elmmio ranges first.
>  		 *      that would take care of elmmio ranges routed
>  		 *	to a different rope (already discovered) from
> @@ -851,7 +850,8 @@ lba_fixup_bus(struct pci_bus *bus)
>  					"lmmio_space [%lx/%lx]\n",
>  					ldev->hba.lmmio_space.start,
>  					ldev->hba.lmmio_space.end);
> -			}
> +			} else
> +				bus->resource[i++] = &(ldev->hba.lmmio_space);
>  		}
>  
>  #ifdef CONFIG_64BIT
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 

--Boundary-00=_VRKoDL7YKgeVdzi
Content-Type: text/plain;
  charset="iso-8859-1";
  name="bootlog"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename="bootlog"

Linux version 2.6.15-rc5-pa5 (root@p100) (gcc version 3.3.4 (Debian 1:3.3.4-11)) #242 Wed Dec 14 23:51:28 CET 2005
FP[0] enabled: Rev 1 Model 19
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005dc0 00000481 00000000 00000002 777c3e84 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 19 rev 11 (0x0000026b)
capabilities 0x7
model 9000/785/C3700
Total Memory: 2048 MB
On node 0 totalpages: 524288
  DMA zone: 524288 pages, LIFO batch:31
  DMA32 zone: 0 pages, LIFO batch:0
  Normal zone: 0 pages, LIFO batch:0
  HighMem zone: 0 pages, LIFO batch:0
LCD display at f05d0008,f05d0000 registered
Built 1 zonelists
Kernel command line: HOME=/ root=/dev/sda3 ip=bootp console=ttyS0 TERM=vt102 palo_kernel=0/vmlinux
PID hash table entries: 4096 (order: 12, 65536 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 524288 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 262144 (order: 8, 1048576 bytes)
Memory: 2097152k available
Calibrating delay loop... 1497.49 BogoMIPS (lpj=7487488)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
6. Allegro W2 at 0xfffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
7. Memory at 0xfed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
Whole cache flush 863173 cycles, flushing 4294848 bytes 859323 cycles
Setting cache flush threshold to 300 (1 CPUs online)
SBA found Astro 2.1 at 0xfed00000
LBA version TR4.0 (0x5) found at 0xfed30000
PCI: Enabled native mode for NS87415 (pif=0x8f)
LBA version TR4.0 (0x5) found at 0xfed32000
iosapic: no IRTE for 0000:01:04.0 (IRQ not connected?)
iosapic: no IRTE for 0000:01:05.0 (IRQ not connected?)
LBA version TR4.0 (0x5) found at 0xfed38000
LBA version TR4.0 (0x5) found at 0xfed3c000
iosapic: hpa not registered for 0000:03:02.0
SCSI subsystem initialized
usbcore: registered new driver usbfs
usbcore: registered new driver hub
unwind_init: start = 0x103e4430, end = 0x10411a10, entries = 11614
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 67) 
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
PDC Stable Storage facility v0.10
Soft power switch enabled, polling @ 0xf0400804.
STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f2400000 (64 kB), fb at f8000000 (32 MB)
    id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
    graphics card name: PCI_GRAFFITIX1024
STI PCI graphic ROM found at f3800000 (2048 kB), fb at f6000000 (32 MB)
    id 35acda30-9a02587, conforms to spec rev. 8.0d
    graphics card name: A1262A
sticon: Initializing STI text console.
Console: switching to colour STI console 128x48
Console: switching to colour frame buffer device 128x48
fb0: stifb 1024x768-8 frame buffer device, PCI_GRAFFITIX1024, id: 2d08c0a7, mmio: 0xf8100000
stifb: 'A1262A' (id: 0x35acda30) not supported.
sstfb: Voodoo2 (revision 2) with ICS ICS5342 dac
sstfb: framebuffer at 0xfb400000, mapped to 0xfb400000, size 2MB
fb1: Voodoo2 frame buffer device at 0xfb400000
lp: driver loaded but no devices found
Generic RTC Driver v1.07
HP SDC: No SDC found.
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 3) is a 16550A
serial8250: ttyS1 at I/O 0x2f8 (irq = 4) is a 16550A
RAMDISK driver initialized: 4 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Linux Tulip driver version 1.1.13-NAPI (December 15, 2004)
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
eth0: Digital DS21142/DS21143 Tulip rev 65 at 80001000, 00:30:6E:48:AA:64, IRQ 65.
tulip1:  EEPROM default media type Autosense.
tulip1:  Index #0 - Media MII (#11) described by a 21142 MII PHY (3) block.
tulip1:  Index #1 - Media 10base2 (#1) described by a 21142 Serial PHY (2) block.
tulip1:  Index #2 - Media AUI (#2) described by a 21142 Serial PHY (2) block.
tulip1:  MII transceiver #1 config 3100 status 7849 advertising 0101.
tulip1:  Advertising 01e1 on PHY 1, previously advertising 0101.
eth1: Digital DS21142/DS21143 Tulip rev 33 at 80028000, 00:60:B0:7A:12:89, IRQ 71.
sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 68
sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
sym0: SCSI BUS has been reset.
sym0: SCSI BUS mode change from SE to SE.
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.2
sym1: <896> rev 0x7 at pci 0000:00:0f.1 irq 68
sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi1 : sym-2.2.2
  Vendor: SEAGATE   Model: ST39102LC         Rev: HP01
  Type:   Direct-Access                      ANSI SCSI revision: 02
 target1:0:5: tagged command queuing enabled, command queue depth 16.
 target1:0:5: Beginning Domain Validation
 target1:0:5: asynchronous.
 target1:0:5: FAST-40 SCSI 40.0 MB/s ST (25 ns, offset 15)
 target1:0:5: Domain Validation skipping write tests
 target1:0:5: Ending Domain Validation
  Vendor: HP 36.4G  Model: ST336607LC        Rev: HPC3
  Type:   Direct-Access                      ANSI SCSI revision: 03
 target1:0:6: tagged command queuing enabled, command queue depth 16.
 target1:0:6: Beginning Domain Validation
 target1:0:6: asynchronous.
 target1:0:6: FAST-40 SCSI 40.0 MB/s ST (25 ns, offset 31)
 target1:0:6: Domain Validation skipping write tests
 target1:0:6: Ending Domain Validation
st: Version 20050830, fixed bufsize 32768, s/g segs 256
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sda: drive cache: write through
SCSI device sda: 17773524 512-byte hdwr sectors (9100 MB)
SCSI device sda: drive cache: write through
 sda: sda1 sda2 sda3 sda4
sd 1:0:5:0: Attached scsi disk sda
SCSI device sdb: 71132960 512-byte hdwr sectors (36420 MB)
SCSI device sdb: drive cache: write through
SCSI device sdb: 71132960 512-byte hdwr sectors (36420 MB)
SCSI device sdb: drive cache: write through
 sdb: sdb1 sdb2 sdb3 sdb4
sd 1:0:6:0: Attached scsi disk sdb
sd 1:0:5:0: Attached scsi generic sg0 type 0
sd 1:0:6:0: Attached scsi generic sg1 type 0
ohci_hcd: 2005 April 22 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci_hcd: block sizes: ed 64 td 64
ohci_hcd 0000:00:0e.2: OHCI Host Controller
drivers/usb/core/inode.c: creating file 'devices'
drivers/usb/core/inode.c: creating file '001'
ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:0e.2: irq 1, io mem 0xf2007000
ohci_hcd 0000:00:0e.2: Using NSC SuperIO setup
ohci_hcd 0000:00:0e.2: resetting from state 'reset', control = 0x0
ohci_hcd 0000:00:0e.2: OHCI controller state
ohci_hcd 0000:00:0e.2: OHCI 1.0, NO legacy support registers
ohci_hcd 0000:00:0e.2: control 0x083 HCFS=operational CBSR=3
ohci_hcd 0000:00:0e.2: cmdstatus 0x00000 SOC=0
ohci_hcd 0000:00:0e.2: intrstatus 0x00000000
ohci_hcd 0000:00:0e.2: intrenable 0x8000001a MIE UE RD WDH
ohci_hcd 0000:00:0e.2: hcca frame #0000
ohci_hcd 0000:00:0e.2: roothub.a 00001003 POTPGT=0 NOCP NDP=3(3)
ohci_hcd 0000:00:0e.2: roothub.b 000e0000 PPCM=000e DR=0000
ohci_hcd 0000:00:0e.2: roothub.status 00008000 DRWE
ohci_hcd 0000:00:0e.2: roothub.portstatus [0] 0x00000100 PPS
ohci_hcd 0000:00:0e.2: roothub.portstatus [1] 0x00000100 PPS
ohci_hcd 0000:00:0e.2: roothub.portstatus [2] 0x00000100 PPS
ohci_hcd 0000:00:0e.2: created debug files
usb usb1: default language 0x0409
usb usb1: new device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: OHCI Host Controller
usb usb1: Manufacturer: Linux 2.6.15-rc5-pa5 ohci_hcd
usb usb1: SerialNumber: 0000:00:0e.2
usb usb1: hotplug
usb usb1: adding 1-0:1.0 (config #1, interface 0)
usb 1-0:1.0: hotplug
hub 1-0:1.0: usb_probe_interface
hub 1-0:1.0: usb_probe_interface - got id
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
hub 1-0:1.0: standalone hub
hub 1-0:1.0: ganged power switching
hub 1-0:1.0: no over-current protection
hub 1-0:1.0: power on to power good time: 0ms
hub 1-0:1.0: local power source is good
hub 1-0:1.0: enabling power on all ports
hub 1-0:1.0: state 5 ports 3 chg 0000 evt 0000
drivers/usb/core/inode.c: creating file '001'
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
mice: PS/2 mouse device common for all mice
Advanced Linux Sound Architecture Driver Version 1.0.10rc3 (Mon Nov 07 13:30:21 2005 UTC).
ALSA device list:
  No soundcards found.
oprofile: using timer interrupt.
NET: Registered protocol family 2
IP route cache hash table entries: 131072 (order: 7, 524288 bytes)
TCP established hash table entries: 524288 (order: 9, 2097152 bytes)
TCP bind hash table entries: 65536 (order: 6, 262144 bytes)
TCP: Hash tables configured (established 524288 bind 65536)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
Sending BOOTP requests . OK
IP-Config: Got BOOTP answer from 192.168.178.50, my address is 192.168.178.70
IP-Config: Complete:
      device=eth0, addr=192.168.178.70, mask=255.255.255.0, gw=192.168.178.1,
     host=c3000, domain=box, nis-domain=(none),
     bootserver=192.168.178.50, rootserver=192.168.178.50, rootpath=
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
eth0: Setting full-duplex based on MII#1 link partner capability of 05e1.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 356k freed
Adding 263144k swap on /dev/sda1.  Priority:-1 extents:1 across:263144k
Adding 1953784k swap on /dev/sdb3.  Priority:-2 extents:1 across:1953784k
EXT3 FS on sda3, internal journal
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sdb4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.

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Subject: [parisc-linux] Re: 2.6.15-rc5-mm2 can't boot on ia64 due to
	changing on_each_cpu().
Date: Thu, 15 Dec 2005 08:41:00 -0700
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Cc: Andrew Morton <akpm@osdl.org>,
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To: Yasunori Goto <y-goto@jp.fujitsu.com>
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On Thu, Dec 15, 2005 at 03:34:27PM +0900, Yasunori Goto wrote:
> Thanks! It works!
> 
> BTW, I found same casted function at on_each_cpu() in parisc code.
>  (arch/parisc/kernel/cache.c
>   arch/parisc/kernel/smp.c
>   arch/parisc/mm/init.c)
> 
> Are they also should fixed? 
> I don't have parisc box. So, I don't know there is same trouble on
> parisc box or not, and I can't test it.

Yes, these  will also need to be changed.  Thanks.
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Xref: news.gmane.org gmane.linux.ports.parisc:25237

Hi all,

On Thursday 08 December 2005 18:39, Stuart Brady wrote:
> On Thu, Dec 08, 2005 at 11:56:32AM +0100, Andy Walker wrote:
> > Note that the A4071B/HCRX24 gets detected just fine. Its set in PDC as
> > the console path, and also via the sti=8/8 parameter.
> > 
> > Nothing crashes, but the console is unusable. Most of the output is
> > black on black, though I get bits of text in magenta, yellow and green
> > depending on the intended colour. Tux has a bright green background and
> > is otherwise pretty psychedelic. Back to Vis-EG for the time being.
> 
> Have you tried running X, and then switching back to the console?  That
> at least gets it working for me...  I wonder which devices are affected
> by this?  What about the A4071A?

Hi all,

I just committed a patch to stifb in kernel 2.6.15-rc6-pa1.
Could you please try this one? It works for me... :-)

Stuart's hint with starting X and then switching back again pointed to a bug in the palette handling of stifb, which I hopefully fixed now.

X11 still only shows me 3/4 of the screen, but this seems to be another problem....

Regards,
Helge


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On Mon, Dec 19, 2005 at 04:39:43PM +0100, Helge Deller wrote:
> Hi all,
> 
> I just committed a patch to stifb in kernel 2.6.15-rc6-pa1.
> Could you please try this one? It works for me... :-)
> 
> Stuart's hint with starting X and then switching back again pointed to
> a bug in the palette handling of stifb, which I hopefully fixed now.

Ooh!  I'll test this...  Unfortunately, I'm compiling on a 715/100 so
bear with me for a moment. :)

> X11 still only shows me 3/4 of the screen, but this seems to be
> another problem....

Max Grabert found the fix for that... put "DefaultFbBpp 32" in the
"Screen" section of your xorg.conf file.  I'm not sure if that's a bug
in stifb or not.  If not, perhaps you could argue that there's a bug in
xorg or the framebuffer code.

Cheers,
-- 
Stuart Brady


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Helge Deller wrote:
> I just committed a patch to stifb in kernel 2.6.15-rc6-pa1.
> Could you please try this one? It works for me... :-)

I'm sorry, but I didn't undestrand if you have fixed my problem with 
HCRX-24? :)

If yes the kernel with your patch is aivailable on cvs.parisc-linux.org 
or I've to patch the source and compile it?

Thank you.

Ciao.

	Fabio.



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Hello Fabio,

On Monday 19 December 2005 19:08, Fabio Bizzi wrote:
> Helge Deller wrote:
> > I just committed a patch to stifb in kernel 2.6.15-rc6-pa1.
> > Could you please try this one? It works for me... :-)
> 
> I'm sorry, but I didn't undestrand if you have fixed my problem with 
> HCRX-24? :)

Probably not.
Your main problem is that you see this message:

STI GSC/PCI core graphics driver Version 0.9a
     id 2bcb015a-9a02587, conforms to spec rev. 8.04
STI init_graph failed (ret -1, errno 258)
sti: probe of 10:8 failed with error 1

"init_graph" is a graphic card firmware function, which seems to not work on your system.
Some HP firmwares have support to "patch" the graphic card firmware before executing "init_graph".
This is probably not the case for your c200.

So, please check if your machine runs the latest HP-C200 firmware.
For this please read the PARISC-Linux FAQ at http://www.parisc-linux.org/faq/index.html#PDCupdate ("How can I check if the PDC (firmware) revision is the latest?").

Additionally I will try write some patch-code during the next weeks, which might get your card working even on the C200 and other machines. Stay tuned.
 
> If yes the kernel with your patch is aivailable on cvs.parisc-linux.org 
> or I've to patch the source and compile it?

2.6.15-rc6-pa1 is currently beeing built.
During the next hour I assume it should be finished and you may download it from here: http://cvs.parisc-linux.org/download/linux-2.6/
(I assume a B180 might be close to your c200 ?).

Helge
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On Mon, Dec 19, 2005 at 09:04:48PM +0100, Helge Deller wrote:
> 2.6.15-rc6-pa1 is currently beeing built.
> During the next hour I assume it should be finished and you may download it from here: http://cvs.parisc-linux.org/download/linux-2.6/
> (I assume a B180 might be close to your c200 ?).

Unfortunately not.  The B180 build has CCIO disabled, so it's much less
useful than it might otherwise be.  I keep threatening to rename the
b180_defconfig to c110_defconfig and enable CCIO, HPPB, ZALON, LASI_82596,
HIL, MUX and HARMONY.

Then I think I should just delete it and people with Raven-class
machines should just use the 32 build and be happy about it.

So in the meantime we keep building a not-very-useful config.


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Subject: Re: [parisc-linux] HCRX-24 and missing consoles on my C200
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Helge Deller wrote:
> Hello Fabio,
> 
> On Monday 19 December 2005 19:08, Fabio Bizzi wrote:
>> Helge Deller wrote:
>>> I just committed a patch to stifb in kernel 2.6.15-rc6-pa1.
>>> Could you please try this one? It works for me... :-)
>> I'm sorry, but I didn't undestrand if you have fixed my problem with 
>> HCRX-24? :)
> 
> Probably not.
> Your main problem is that you see this message:
> 
> STI GSC/PCI core graphics driver Version 0.9a
>      id 2bcb015a-9a02587, conforms to spec rev. 8.04
> STI init_graph failed (ret -1, errno 258)
> sti: probe of 10:8 failed with error 1
> 
> "init_graph" is a graphic card firmware function, which seems to not work on your system.
> Some HP firmwares have support to "patch" the graphic card firmware before executing "init_graph".
> This is probably not the case for your c200.
> 
> So, please check if your machine runs the latest HP-C200 firmware.
> For this please read the PARISC-Linux FAQ at http://www.parisc-linux.org/faq/index.html#PDCupdate ("How can I check if the PDC (firmware) revision is the latest?").
> 
> Additionally I will try write some patch-code during the next weeks, which might get your card working even on the C200 and other machines. Stay tuned.
>  
>> If yes the kernel with your patch is aivailable on cvs.parisc-linux.org 
>> or I've to patch the source and compile it?
> 
> 2.6.15-rc6-pa1 is currently beeing built.
> During the next hour I assume it should be finished and you may download it from here: http://cvs.parisc-linux.org/download/linux-2.6/
> (I assume a B180 might be close to your c200 ?).
> 
> Helge

I'll give it a spin on the B132. The C180 is in storage right now,
though with the cold weather we're having I could justify running
it purely as a heater ;-) That thing really generates some heat
when its chock of 64MB SIMMs.

-Andy



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Subject: Re: [parisc-linux] HCRX-24 and missing consoles on my C200
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On Mon, Dec 19, 2005 at 05:07:17PM +0000, Stuart Brady wrote:
> On Mon, Dec 19, 2005 at 04:39:43PM +0100, Helge Deller wrote:
> > Hi all,
> > 
> > I just committed a patch to stifb in kernel 2.6.15-rc6-pa1.
> > Could you please try this one? It works for me... :-)
> > 
> > Stuart's hint with starting X and then switching back again pointed to
> > a bug in the palette handling of stifb, which I hopefully fixed now.
> 
> Ooh!  I'll test this...  Unfortunately, I'm compiling on a 715/100 so
> bear with me for a moment. :)

Seems to work fine... except for a few black patches on Tux's feet.

I've tested using:

for n in 0 1; do
	for m in 0 4 1 5 2 6 3 7; do
		echo -e "\033[${n};3${m}mTesting\033[m"
	done
done

Works as expected.
-- 
Stuart Brady
_______________________________________________
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http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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Subject: Re: [parisc-linux] HCRX-24 and missing consoles on my C200
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Helge Deller wrote:
>>I'm sorry, but I didn't undestrand if you have fixed my problem with 
>>HCRX-24? :)
> 
> Probably not.

Next Time! :)

> So, please check if your machine runs the latest HP-C200 firmware.

Done, I've updated PDC Firmware to the latest release when I bought the 
C200, actually It runs 6.3

> Additionally I will try write some patch-code during the next weeks, which might get your card working even on the C200 and other machines. Stay tuned.

You have all my thanks! :)

Thank You!

Ciao.

	Fabio.



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Matthew Wilcox wrote:
>>(I assume a B180 might be close to your c200 ?).
> 
> Unfortunately not.  The B180 build has CCIO disabled, so it's much less
> useful than it might otherwise be.  I keep threatening to rename the
> b180_defconfig to c110_defconfig and enable CCIO, HPPB, ZALON, LASI_82596,
> HIL, MUX and HARMONY.

Thank you, but I'm a bit cunfused, what is the kernel image that best 
suit my C200? (I've understand that 64Bit kernel is only useful if I 
have more than 3GB of RAM, so 32Bit kernel with working front-led is 
wonderfull for me! :) )

Thank You again.

Ciao.

	Fabio.


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Does anyone know who the maintainer of the Debian parisc boot CD is?
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Xref: news.gmane.org gmane.linux.ports.parisc:25247

Nukes ~13809 sparse warnings on allmodconfig.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---

 include/asm-parisc/io.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/include/asm-parisc/io.h
+++ b/include/asm-parisc/io.h
@@ -41,7 +41,7 @@ extern void __raw_bad_addr(const volatil
 #define __raw_check_addr(addr)					\
 	if (((unsigned long)addr >> NYBBLE_SHIFT) != 0xe)	\
 		__raw_bad_addr(addr);			\
-	addr = (void *)((unsigned long)addr | (0xfUL << NYBBLE_SHIFT));
+	addr = (void __iomem *)((unsigned long)addr | (0xfUL << NYBBLE_SHIFT));
 #else
 #define gsc_check_addr(addr)
 #define __raw_check_addr(addr)

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Xref: news.gmane.org gmane.linux.ports.parisc:25248

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---

 include/asm-parisc/processor.h |   18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

--- a/include/asm-parisc/processor.h
+++ b/include/asm-parisc/processor.h
@@ -144,16 +144,16 @@ struct thread_struct {
         })
 
 #define INIT_THREAD { \
-	regs:	{	gr: { 0, }, \
-			fr: { 0, }, \
-			sr: { 0, }, \
-			iasq: { 0, }, \
-			iaoq: { 0, }, \
-			cr27: 0, \
+	.regs = {	.gr	= { 0, }, \
+			.fr	= { 0, }, \
+			.sr	= { 0, }, \
+			.iasq	= { 0, }, \
+			.iaoq	= { 0, }, \
+			.cr27	= 0, \
 		}, \
-	task_size:      DEFAULT_TASK_SIZE, \
-	map_base:       DEFAULT_MAP_BASE, \
-	flags:          0 \
+	.task_size	= DEFAULT_TASK_SIZE, \
+	.map_base	= DEFAULT_MAP_BASE, \
+	.flags		= 0 \
 	}
 
 /*

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X-Mozilla-Keys:                                                                                 
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From: Alexey Dobriyan <adobriyan@gmail.com>
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Subject: [parisc-linux] [PATCH] eisa_eeprom.c: __user annotations
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Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---

 drivers/parisc/eisa_eeprom.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/parisc/eisa_eeprom.c
+++ b/drivers/parisc/eisa_eeprom.c
@@ -48,7 +48,7 @@ static loff_t eisa_eeprom_llseek(struct 
 }
 
 static ssize_t eisa_eeprom_read(struct file * file,
-			      char *buf, size_t count, loff_t *ppos )
+			      char __user *buf, size_t count, loff_t *ppos )
 {
 	unsigned char *tmp;
 	ssize_t ret;

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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [PATCH] eisa_eeprom.c: __user annotations
Date: Fri, 23 Dec 2005 19:23:50 -0700
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Cc: parisc-linux@parisc-linux.org,
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To: Alexey Dobriyan <adobriyan@gmail.com>
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On Sat, Dec 24, 2005 at 02:41:30AM +0300, Alexey Dobriyan wrote:
> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>

I've added these three patches to the parisc tree; thanks.
I expect they'll go in before 2.6.16-rc1.

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From: Russell King <rmk@arm.linux.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [CFT 10/29] Add parisc_bus_type probe and remove
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

---
 arch/parisc/kernel/drivers.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff -up -x BitKeeper -x ChangeSet -x SCCS -x _xlk -x *.orig -x *.rej -x .git linus/arch/parisc/kernel/drivers.c linux/arch/parisc/kernel/drivers.c
--- linus/arch/parisc/kernel/drivers.c	Sun Nov  6 22:14:46 2005
+++ linux/arch/parisc/kernel/drivers.c	Sun Nov 13 16:08:49 2005
@@ -173,8 +173,6 @@ int register_parisc_driver(struct parisc
 	WARN_ON(driver->drv.probe != NULL);
 	WARN_ON(driver->drv.remove != NULL);
 
-	driver->drv.probe = parisc_driver_probe;
-	driver->drv.remove = parisc_driver_remove;
 	driver->drv.name = driver->name;
 
 	return driver_register(&driver->drv);
@@ -570,6 +568,8 @@ struct bus_type parisc_bus_type = {
 	.name = "parisc",
 	.match = parisc_generic_match,
 	.dev_attrs = parisc_device_attrs,
+	.probe = parisc_driver_probe,
+	.remove = parisc_driver_remove,
 };
 
 /**
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] [CFT 10/29] Add parisc_bus_type probe and remove
	methods
Date: Thu, 5 Jan 2006 11:46:45 -0700
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To: Russell King <rmk@arm.linux.org.uk>
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On Thu, Jan 05, 2006 at 02:34:38PM +0000, Russell King wrote:
> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Works fine, Acked-by: Matthew Wilcox <matthew@wil.cx>

> diff -up -x BitKeeper -x ChangeSet -x SCCS -x _xlk -x *.orig -x *.rej -x .git linus/arch/parisc/kernel/drivers.c linux/arch/parisc/kernel/drivers.c
> --- linus/arch/parisc/kernel/drivers.c	Sun Nov  6 22:14:46 2005
> +++ linux/arch/parisc/kernel/drivers.c	Sun Nov 13 16:08:49 2005
> @@ -173,8 +173,6 @@ int register_parisc_driver(struct parisc
>  	WARN_ON(driver->drv.probe != NULL);
>  	WARN_ON(driver->drv.remove != NULL);

I wonder if you want to delete the two WARN_ONs here too.
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Subject: [parisc-linux] patch
	add-parisc_bus_type-probe-and-remove-methods.patch added to
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To: rmk@arm.linux.org.uk,
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This is a note to let you know that I've just added the patch titled

     Subject: [CFT 10/29] Add parisc_bus_type probe and remove methods

to my gregkh-2.6 tree.  Its filename is

     add-parisc_bus_type-probe-and-remove-methods.patch

This tree can be found at 
    http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/


>>From rmk+greg=kroah.com@arm.linux.org.uk Thu Jan  5 06:37:17 2006
From: Russell King <rmk@arm.linux.org.uk>
CC: Greg K-H <greg@kroah.com>, parisc <parisc-linux@parisc-linux.org>
Subject: [CFT 10/29] Add parisc_bus_type probe and remove methods
Date: Thu, 05 Jan 2006 14:34:38 +0000
Message-ID: <20060105142951.13.10@flint.arm.linux.org.uk>

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 arch/parisc/kernel/drivers.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- gregkh-2.6.orig/arch/parisc/kernel/drivers.c
+++ gregkh-2.6/arch/parisc/kernel/drivers.c
@@ -173,8 +173,6 @@ int register_parisc_driver(struct parisc
 	WARN_ON(driver->drv.probe != NULL);
 	WARN_ON(driver->drv.remove != NULL);
 
-	driver->drv.probe = parisc_driver_probe;
-	driver->drv.remove = parisc_driver_remove;
 	driver->drv.name = driver->name;
 
 	return driver_register(&driver->drv);
@@ -570,6 +568,8 @@ struct bus_type parisc_bus_type = {
 	.name = "parisc",
 	.match = parisc_generic_match,
 	.dev_attrs = parisc_device_attrs,
+	.probe = parisc_driver_probe,
+	.remove = parisc_driver_remove,
 };
 
 /**


Patches currently in gregkh-2.6 which might be from rmk@arm.linux.org.uk are

driver/add-bttv-sub-bus_type-probe-and-remove-methods.patch
driver/add-bus_type-probe-remove-shutdown-methods..patch
driver/add-ccwgroup_bus_type-probe-and-remove-methods.patch
driver/add-dio_bus_type-probe-and-remove-methods.patch
driver/add-ecard_bus_type-probe-remove-shutdown-methods.patch
driver/add-gameport-bus_type-probe-and-remove-methods.patch
driver/add-i2c_bus_type-probe-and-remove-methods.patch
driver/add-ide_bus_type-probe-and-remove-methods.patch
driver/add-locomo-bus_type-probe-remove-methods.patch
driver/add-logic-module-bus_type-probe-remove-methods.patch
driver/add-macio_bus_type-probe-and-remove-methods.patch
driver/add-mcp-bus_type-probe-and-remove-methods.patch
driver/add-mmc_bus_type-probe-and-remove-methods.patch
driver/add-ocp_bus_type-probe-and-remove-methods.patch
driver/add-of_platform_bus_type-probe-and-remove-methods.patch
driver/add-parisc_bus_type-probe-and-remove-methods.patch
driver/add-pci_bus_type-probe-and-remove-methods.patch
driver/add-pcmcia_bus_type-probe-and-remove-methods.patch
driver/add-pnp_bus_type-probe-and-remove-methods.patch
driver/add-pseudo-lld-bus_type-probe-and-remove-methods.patch
driver/add-rio_bus_type-probe-and-remove-methods.patch
driver/add-sa1111-bus_type-probe-remove-methods.patch
driver/add-serio-bus_type-probe-and-remove-methods.patch
driver/add-sh_bus_type-probe-and-remove-methods.patch
driver/add-superhyway_bus_type-probe-and-remove-methods.patch
driver/add-tiocx-bus_type-probe-remove-methods.patch
driver/add-usb_serial_bus_type-probe-and-remove-methods.patch
driver/add-vio_bus_type-probe-and-remove-methods.patch
driver/add-zorro_bus_type-probe-and-remove-methods.patch
driver/remove-usb-gadget-generic-driver-methods.patch
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The 2.6.16-rc1 merge was a bit complex, so please check any areas you
feel responsible for to make sure I didn't mess you up.

arch/parisc/kernel/process.c

The merge seems to have undone some of viro's task_stack_page stuff.
I don't think this was deliberate, needs checking.

drivers/parisc/pdc_stable.c

I think I just took Thibaut's newest version for everything here.

drivers/scsi/constants.c
drivers/scsi/ncr53c8xx.c
drivers/scsi/ncr53c8xx.h
drivers/scsi/sym53c8xx_2/sym_glue.c
drivers/scsi/sym53c8xx_2/sym_glue.h
drivers/scsi/sym53c8xx_2/sym_hipd.c

I'll take care of these; they're all my fault.

include/sound/opl3.h
sound/drivers/opl3/opl3_lib.c
sound/pci/Kconfig
sound/pci/ad1889.c

Stuart, please look.  It was all very complicated, and I'm not convinced
I haven't missed some cleanups necessary on error paths.

kernel/compat.c

I kept our version of compat_sys_timer_create.  Someone please test the
upstream version works.

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On Tue, Jan 17, 2006 at 08:06:25AM -0700, Matthew Wilcox wrote:
> The 2.6.16-rc1 merge was a bit complex, so please check any areas you
> feel responsible for to make sure I didn't mess you up.
> 
> arch/parisc/kernel/process.c
> 
> The merge seems to have undone some of viro's task_stack_page stuff.
> I don't think this was deliberate, needs checking.
>

Shit. Ok. I'll fix this.
 
> drivers/parisc/pdc_stable.c
> 
> I think I just took Thibaut's newest version for everything here.
>

Yes, that's right, I merged a not-quite-totally-fixed interim version
(fixed some sysfs error checking, but not much else, iirc).
 
> drivers/scsi/constants.c
> drivers/scsi/ncr53c8xx.c
> drivers/scsi/ncr53c8xx.h
> drivers/scsi/sym53c8xx_2/sym_glue.c
> drivers/scsi/sym53c8xx_2/sym_glue.h
> drivers/scsi/sym53c8xx_2/sym_hipd.c
> 
> I'll take care of these; they're all my fault.
> 

:)

> include/sound/opl3.h
> sound/drivers/opl3/opl3_lib.c
> sound/pci/Kconfig
> sound/pci/ad1889.c
> 
> Stuart, please look.  It was all very complicated, and I'm not convinced
> I haven't missed some cleanups necessary on error paths.
>

Can we just split out a diff of the OPL3 stuff and remove it from CVS until
it gets sorted? The ALSA folk seem to like to fuck around with our code
without informing us of it.
 
> kernel/compat.c
> 
> I kept our version of compat_sys_timer_create.  Someone please test the
> upstream version works.
> 

I can do this.

A couple things needed to go into cvs that I held off for, atomic64
for one, to avoid merge clashes because of Christoph Lameter's changes
in git.

Cheers,
	Kyle
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Subject: [parisc-linux] Conditional Execution and Instruction Nullification
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On Sat, Jan 28, 2006 at 05:10:57PM +0000, Joel Soete wrote:
> Ah ok sorry, I was confused by a colleague of mine experimented in other 
> cpu risc who tell me that 'instrucion nullification' was typicaly RISC, 
> though. (I can just try to ask him more details on cpu arch he spoke about)

Ignoring conditional traps/branches (and hoping I've got this right):

Neither Alpha nor PowerPC have conditional execution.  MIPS and SPARC
have conditional move instructions (as does POWER).  ARM has conditional
execution for most instructions.  PA-RISC has instruction nullification.

SPARC does have delay slot nullification (with confusing semantics), but
that's unrelated.  MIPS (since MIPS II) and PA-RISC have this, too.

http://gec.di.uminho.pt/discip/TextoAC/AnexoE.html might be a good read.

Cheers,
-- 
Stuart Brady
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Subject: Re: [parisc-linux] [patch 12/44] generic sched_find_first_bit()
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Cc: linux-mips@linux-mips.org,
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On Wed, Feb 01, 2006 at 06:02:36PM +0900, Akinobu Mita wrote:
> This patch introduces the C-language equivalent of the function:
> int sched_find_first_bit(const unsigned long *b);

Akinobu, would you prefer this is a slightly cleaner way?
(Not compile tested)

static inline int sched_find_first_bit(const unsigned long *b)
{
	if (unlikely(b[0]))
		return __ffs(b[0]);
	if (unlikely(b[1]))
		return __ffs(b[1]) + BITS_PER_LONG;
#if BITS_PER_LONG == 32
	if (unlikely(b[2]))
		return __ffs(b[2]) + 64;
	if (b[3])
		return __ffs(b[3]) + 96;
#endif
	return __ffs(b[128/BITS_PER_LONG]) + 128;
}

If BITS_PER_LONG isn't defined, the link step will fail and point
at a some unknown .o as the offender. But it's the responsibility
of the header file to make sure it's including the BITS_PER_LONG
definition, not the code that calls sched_find_first_bit().

hth,
grant
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Subject: [parisc-linux] patch-2.6.16-rc1-rc2 seems to works fine
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Hello pa*,

Short words to mention that I tested patch-2.6.16-rc1-rc2 with success
(apparently straightforward: any failure excepted Makefile obviously) and=

tested up kernels 32bit and 64 bit on my b2k.

Hth,
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please see http://bugs.debian.org/353346

same thing with the 4.1 rc1 build.

thanks, Matthias
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> please see http://bugs.debian.org/353346
> 
> same thing with the 4.1 rc1 build.

Right, it's a linker bug.  The following plabel is dropped from the
shared library.

0000000c R_PARISC_PLABEL32  .L_ZN2A1C1Ev0

This plabel is for a local alias.

Dave
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> Right, it's a linker bug.  The following plabel is dropped from the
> shared library.
> 
> 0000000c R_PARISC_PLABEL32  .L_ZN2A1C1Ev0

I was too hasty in calling this a linker bug.  We end up with the
following relocations in the shared library as a result of the above
relocation in the object file:

00010f34 R_PARISC_PLABEL32  *ABS*+0x00010f46
00010f44 R_PARISC_IPLT     *ABS*+0x000009a8

The reason for the segmentation fault is the R_PARISC_IPLT isn't
being handled correctly and the indirect call to the constructor
for the library branches to the wrong location.

Carlos, do you have an opinion on how plabels that reference local
symbols in shared libraries should be handled?  This is what we have
in the A1.s file for .L_ZN2A1C1Ev0:

        .word   P%.L_ZN2A1C1Ev0
        .set    .L_ZN2A1C1Ev0,_ZN2A1C1Ev

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:25262

Dave,

Sorry, it appears I've been dropped from various lists when my
mail servers went down due to university problems.

> > Right, it's a linker bug.  The following plabel is dropped from the
> > shared library.
> >
> > 0000000c R_PARISC_PLABEL32  .L_ZN2A1C1Ev0
>
> I was too hasty in calling this a linker bug.  We end up with the
> following relocations in the shared library as a result of the above
> relocation in the object file:
>
> 00010f34 R_PARISC_PLABEL32  *ABS*+0x00010f46
> 00010f44 R_PARISC_IPLT     *ABS*+0x000009a8
>
> The reason for the segmentation fault is the R_PARISC_IPLT isn't
> being handled correctly and the indirect call to the constructor
> for the library branches to the wrong location.

Can you explain what is broken?
Where does it branch to?

> Carlos, do you have an opinion on how plabels that reference local
> symbols in shared libraries should be handled?  This is what we have
> in the A1.s file for .L_ZN2A1C1Ev0:
>
>         .word   P%.L_ZN2A1C1Ev0
>         .set    .L_ZN2A1C1Ev0,_ZN2A1C1Ev

*ABS* IPLT relocations might be mildly broken in hppa actually.

*ABS* PLABEL's point to the PLT at runtime, this might be a
reason for the breakage. We point them at the PLT because they
are local and thus the PLT is a unique OPD.

It might be possible the IP is correctly set, but the GP is incorrect.
If you could verify this it would be great?

This breakage would have occured around the time that fixup was
changed to incorporate ia64 changes.

c.
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Subject: Re: [Fwd: Re: [parisc-linux] Re: gcj can't make shared libs on hppa]
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> > I was too hasty in calling this a linker bug.  We end up with the
> > following relocations in the shared library as a result of the above
> > relocation in the object file:
> >
> > 00010f34 R_PARISC_PLABEL32  *ABS*+0x00010f46
> > 00010f44 R_PARISC_IPLT     *ABS*+0x000009a8
> >
> > The reason for the segmentation fault is the R_PARISC_IPLT isn't
> > being handled correctly and the indirect call to the constructor
> > for the library branches to the wrong location.
> 
> Can you explain what is broken?

If I knew that, I probably would have fixed the problem ;(

> Where does it branch to?

(gdb) stepi
0x400abb94 in __do_global_ctors_aux () from ./liba1.so.0
(gdb)
0x400ab9c4 in $$dyncall () from ./liba1.so.0
(gdb)
0x400ab9c4 in $$dyncall () from ./liba1.so.0
(gdb)
0x400ab9d4 in $$dyncall () from ./liba1.so.0
(gdb)
0x400ab9d8 in $$dyncall () from ./liba1.so.0
(gdb)
0x08000240 in ?? ()
(gdb) stepi

Program received signal SIGSEGV, Segmentation fault.
0x08000240 in ?? ()

Starting program: /home/dave/gcc_test/main
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 29346)]
[Switching to Thread 16384 (LWP 29346)]

Breakpoint 3, 0x400abb90 in __do_global_ctors_aux () from ./liba1.so.0
(gdb) p/x $r22
$3 = 0x8000240

This is just before the call to $$dyncall.  As can be seen, $r22
doesn't point to a function descriptor.  There doesn't seem to be
a function at 0x8000240.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> The reason for the segmentation fault is the R_PARISC_IPLT isn't
> being handled correctly and the indirect call to the constructor
> for the library branches to the wrong location.

here's what i see....

__do_global_ctors_aux is trying to load a value from the GOT
(__CTORS_LIST i think). I'm seeing that it loads some garbage value
(0x4fd23f01 in my case), and then it tries to do a $dyncall on that.

__do_global_ctors_aux does something like:

addil 0(%r19),%r1
ldw 28(%r1),%ret0
ldw -4(%ret0),%r3
...
copy %r3,%r22
b,l $$dyncall, %r31

$r19+0x28 is 0x41896830; points inside the .plt. seems reasonable

but *(%ret0-4) points inside the text section, so r22 eventually gets 
loaded with an instruction value (0x4fd23f01 == ldw,mb -80(sp),r18)

dunno if this helps with anything... have to think about it somemore to 
see what's happening...

randolph


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> but *(%ret0-4) points inside the text section, so r22 eventually gets 
> loaded with an instruction value (0x4fd23f01 == ldw,mb -80(sp),r18)

r22 should be pointing to a function descriptor and have the plabel
bit set.  It's a relative rare situation when an indirect call can
be made directly (no shared libraries).

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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> On Fri, Mar 10, 2006 at 12:16:46PM +0100, Miklos Szeredi wrote:
> > Can you try the following patch to the library?
> > 
> > It initializes the memory to some random value (0x28) before the
> > read(), to check if the kernel sets the memory to zero or it doesn't
> > touch the buffer at all.
> 
> Interesting, the kernel is not setting the memory.

OK.  I'm out of ideas, CC-ing parisc-linux, maybe they can help shed
some light on this.

A short summary of the problem:

(for the full thread see:
http://thread.gmane.org/gmane.comp.file-systems.fuse.devel/2833)

FUSE doesn't seem to work on PA-RISC (2.6.15 + pa4 patchset)

The reason appears to be that when the userspace filesystem reads from
the FUSE device, the kernel doesn't copy any data to the userspace
read buffer, though the correct size is returned by read().

FUSE uses a combination of get_user_pages(), kmap_atomic() and
memcpy().  After kunmap_atomic(), flush_dcache_page() is called to
avoid virtual aliasing.  The data in the read buffer is totally
untouched.

Can anyone confirm the above behavior of FUSE on PA-RISC?

Any ideas why this would behave differently on PA-RISC as on other
archs?

Thanks,
Miklos
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> please see http://bugs.debian.org/353346

Should be fixed.  See http://gcc.gnu.org/ml/gcc-patches/2006-03/msg00815.html

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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This is a multi-part message in MIME format.
--++----------20060316140732-041624518----------++
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Jick, Chris,

Can you please try the following module containing the simplified
versions of the fuse device read/write routines?

Copy the attached files into an empty directory, then do 'make' and
'insmod copytest.ko'.

Then do

  cat /proc/fs/test
  echo hello > /proc/fs/test
  dmesg | tail

I get something like this:

~$ cat /proc/fs/test
Hello!
~$ echo hello > /proc/fs/test
~$ dmesg | tail
test_read 0804d848 1024 0
dst: 0804d848 page: c13a9f40 offset: 2120 mapaddr: dd4fa000 ptr: dd4fa848
  test_read: 7
test_read 0804d848 1024 7
  test_read: 0
test_write 080e9008 6 0
src: 080e9008 page: c1167560 offset: 8 mapaddr: cb3ab000 ptr: cb3ab008
<hello
>
  test_write: 6
~$

You could also try changing the calls to my_copy_{to,from}_user2()
to my_copy_..._user1() and see if it makes a difference.

Thanks,
Miklos

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Subject: Re: [parisc-linux] Re: [fuse-devel] Example filesystem fail to init
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On Mon, Mar 13, 2006 at 12:26:34PM +0100, Miklos Szeredi wrote:
> OK.  I'm out of ideas, CC-ing parisc-linux, maybe they can help shed
> some light on this.

Miklos,
I took a quick look last week but didn't see anything obvious.
I was suspicious of the memcopy() calls to copy stuff to
user space. But willy me told those are fine if using the
result of kmap() (and then kunmap'ing when done).

In a private conversation someone else said they would
look at it on the weekend.

thanks,
grant

> 
> A short summary of the problem:
> 
> (for the full thread see:
> http://thread.gmane.org/gmane.comp.file-systems.fuse.devel/2833)
> 
> FUSE doesn't seem to work on PA-RISC (2.6.15 + pa4 patchset)
> 
> The reason appears to be that when the userspace filesystem reads from
> the FUSE device, the kernel doesn't copy any data to the userspace
> read buffer, though the correct size is returned by read().
> 
> FUSE uses a combination of get_user_pages(), kmap_atomic() and
> memcpy().  After kunmap_atomic(), flush_dcache_page() is called to
> avoid virtual aliasing.  The data in the read buffer is totally
> untouched.
> 
> Can anyone confirm the above behavior of FUSE on PA-RISC?
> 
> Any ideas why this would behave differently on PA-RISC as on other
> archs?
> 
> Thanks,
> Miklos
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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Subject: Re: [parisc-linux] Re: [fuse-devel] Example filesystem fail to
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On Thu, 2006-03-16 at 09:13 -0700, Grant Grundler wrote:
> On Mon, Mar 13, 2006 at 12:26:34PM +0100, Miklos Szeredi wrote:
> > OK.  I'm out of ideas, CC-ing parisc-linux, maybe they can help shed
> > some light on this.
> 
> Miklos,
> I took a quick look last week but didn't see anything obvious.
> I was suspicious of the memcopy() calls to copy stuff to
> user space. But willy me told those are fine if using the
> result of kmap() (and then kunmap'ing when done).

Sorry, meant to reply earlier.

> > The reason appears to be that when the userspace filesystem reads from
> > the FUSE device, the kernel doesn't copy any data to the userspace
> > read buffer, though the correct size is returned by read().
> > 
> > FUSE uses a combination of get_user_pages(), kmap_atomic() and
> > memcpy().  After kunmap_atomic(), flush_dcache_page() is called to
> > avoid virtual aliasing.  The data in the read buffer is totally
> > untouched.

This is wrong.  A VIPT cache requires a mapping to flush on.  If you
kunmap, you've lost the mapping.  What you should do is

kmap()
operate on data
flush_kernel_dcache_page()
kunmap()

James


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> This is wrong.  A VIPT cache requires a mapping to flush on.  If you
> kunmap, you've lost the mapping.

Ahh, I knew I was missing something fundamental.

> What you should do is
> 
> kmap()
> operate on data
> flush_kernel_dcache_page()
> kunmap()

Chris, can you try the below patch?

Thanks,
Miklos

Index: linux/fs/fuse/dev.c
===================================================================
--- linux.orig/fs/fuse/dev.c	2006-03-13 18:26:00.000000000 +0100
+++ linux/fs/fuse/dev.c	2006-03-16 18:28:54.000000000 +0100
@@ -432,11 +432,11 @@ static void fuse_copy_init(struct fuse_c
 static void fuse_copy_finish(struct fuse_copy_state *cs)
 {
 	if (cs->mapaddr) {
-		kunmap_atomic(cs->mapaddr, KM_USER0);
-		if (cs->write) {
+		if (cs->write)
 			flush_dcache_page(cs->pg);
+		kunmap_atomic(cs->mapaddr, KM_USER0);
+		if (cs->write)
 			set_page_dirty_lock(cs->pg);
-		}
 		put_page(cs->pg);
 		cs->mapaddr = NULL;
 	}
@@ -504,6 +504,8 @@ static int fuse_copy_page(struct fuse_co
 	if (page && zeroing && count < PAGE_SIZE) {
 		void *mapaddr = kmap_atomic(page, KM_USER1);
 		memset(mapaddr, 0, PAGE_SIZE);
+		if (!cs->write)
+			flush_dcache_page(page);
 		kunmap_atomic(mapaddr, KM_USER1);
 	}
 	while (count) {
@@ -514,12 +516,12 @@ static int fuse_copy_page(struct fuse_co
 			void *mapaddr = kmap_atomic(page, KM_USER1);
 			void *buf = mapaddr + offset;
 			offset += fuse_copy_do(cs, &buf, &count);
+			if (!cs->write)
+				flush_dcache_page(page);
 			kunmap_atomic(mapaddr, KM_USER1);
 		} else
 			offset += fuse_copy_do(cs, NULL, &count);
 	}
-	if (page && !cs->write)
-		flush_dcache_page(page);
 	return 0;
 }
 
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> > > FUSE uses a combination of get_user_pages(), kmap_atomic() and
> > > memcpy().  After kunmap_atomic(), flush_dcache_page() is called to
> > > avoid virtual aliasing.  The data in the read buffer is totally
> > > untouched.
> 
> This is wrong.  A VIPT cache requires a mapping to flush on.  If you
> kunmap, you've lost the mapping.  What you should do is
> 
> kmap()
> operate on data
> flush_kernel_dcache_page()
> kunmap()

OK, this didn't help.  Looking closer it didn't have a chance of
helping, since kunmap()/kunmap_atomic() are no-ops unless
CONFIG_HIGHMEM is set, but on parisc there's no highmem support.

Any other ideas?

Thanks,
Miklos

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> John David Anglin writes:
> > > please see http://bugs.debian.org/353346
> > 
> > Should be fixed.  See http://gcc.gnu.org/ml/gcc-patches/2006-03/msg00815.html
> 
> with this change (and the typo fix), gcj-dbtool segfaults:
> 
> (gdb) run -n classmap.db
> Starting program: /usr/bin/gcj-dbtool-4.1 -n classmap.db
> [Thread debugging using libthread_db enabled]
> [New Thread 16384 (LWP 6962)]
> [New Thread 32769 (LWP 6965)]
> [New Thread 16386 (LWP 6966)]
> 
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 16384 (LWP 6962)]
> linear_search_fdes (ob=0xbff02054, this_fde=0x4291a780, pc=0x427ed7f3)
>     at unwind-dw2-fde.c:776
> 776     unwind-dw2-fde.c: No such file or directory.
>         in unwind-dw2-fde.c

I just remembered, see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=334112

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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The kernel output on my parisc machine using copy_to/from_user2() is a bit
different:


woozle:/home/frost/fuse_test# insmod copytest.ko
woozle:/home/frost/fuse_test# cat /proc/fs/test
woozle:/home/frost/fuse_test# echo hello > /proc/fs/test
woozle:/home/frost/fuse_test# dmesg | tail
program smartd is using a deprecated SCSI ioctl, please convert it to SG_IO
test_read 000258a0 1024 0
dst: 000258a0 page: 10acb460 offset: 2208 mapaddr: 3b523000 ptr: 3b5238a0
  test_read: 7
test_read 000258a0 1024 7
  test_read: 0
test_write 000d6c08 6 0
src: 000d6c08 page: 108e9060 offset: 3080 mapaddr: 2c403000 ptr: 2c403c08
<>
  test_write: 6
woozle:/home/frost/fuse_test#


Changing the copy_to/from_user2() calls to copy_to/from_user1() changes
the output to include the "Hello!" and "<hello\n>" you see on an x86
(x86, I presume);


woozle:/home/frost/fuse_test# insmod copytest.ko
woozle:/home/frost/fuse_test# cat /proc/fs/test
Hello!
woozle:/home/frost/fuse_test# echo hello > /proc/fs/test
woozle:/home/frost/fuse_test# dmesg | tail -9
program smartd is using a deprecated SCSI ioctl, please convert it to SG_IO
test_read 000258a0 1024 0
  test_read: 7
test_read 000258a0 1024 7
  test_read: 0
test_write 000d6c08 6 0
<hello
>
  test_write: 6
woozle:/home/frost/fuse_test# 


-- 
Chris Frost  |  <http://www.frostnet.net/chris/>
-------------+----------------------------------
Public PGP Key:
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Subject: Re: [parisc-linux] Re: [fuse-devel] Example filesystem fail to
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Cc: fuse-devel@lists.sourceforge.net,
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On Sat, 2006-03-18 at 20:39 -0800, Chris Frost wrote:
> The kernel output on my parisc machine using copy_to/from_user2() is a bit
> different:

OK, I need Hugh's help on this one.

First of all, I've modified your copypage.c to be correct.  You need a
flush_kernel_dcache_page() within the kmap/kunmap (not
flush_dcache_page).

However, the problem appears to be that the user pointer is coming from
malloc'd memory, which is of type PAGE_MAPPING_ANON.  This flag ensures
that page_mapping(page) returns NULL and thus that flush_dcache_page()
on parisc never actually does any user space flushes.

The reason you see nothing when you cat /proc/fs/test is that these
PAGE_MAPPING_ANON pages for malloc() have a nice trick where the
clear_user_highpage() function blasts a string of zeros over them via
the cache in user space, so they're cache incoherent; you can modify the
underlying page as much as you like, but the data the user sees is the
zeros until the page is flushed.  This is the essence of the problem:
flush_dcache_page() isn't bringing these user pages back into coherency.

Just as proof of this, if you uncomment the asm in my_copy_to_user2,
you'll see everything work correctly, because this asm statement forces
coherency on the user page.

So, Hugh, you were the one who introduced this anonymous page behaviour;
how are we supposed to obtain coherency for these pages?

James

#include <linux/fs.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/pagemap.h>
#include <asm/uaccess.h>

MODULE_LICENSE("GPL");

static int my_copy_to_user1(char __user *dst, const char *src, size_t size)
{
    return copy_to_user(dst, src, size) ? -EFAULT : 0;
}

static int my_copy_from_user1(char *dst, const char __user *src, size_t size)
{
    return copy_from_user(dst, src, size) ? -EFAULT : 0;
}

static int my_copy_to_user2(char __user *dst, const char *src, size_t size)
{
    int err;
    struct page *page;
    unsigned long addr = (unsigned long) dst;
    unsigned offset = addr % PAGE_SIZE;
    void *mapaddr;
    void *ptr;
    if (offset + size > PAGE_SIZE)
        return -EINVAL;

    down_read(&current->mm->mmap_sem);
    err = get_user_pages(current, current->mm, addr, 1, 1, 0, &page, NULL);
    up_read(&current->mm->mmap_sem);
    if (err < 0)
        return err;
    //__asm__ __volatile("\tfdc\t0(%%sr3, %0)\n" : : "r" (addr) : "memory");
    BUG_ON(err != 1);
    mapaddr = kmap_atomic(page, KM_USER0);
    ptr = mapaddr + offset;

    printk("dst: %p page: %p offset: %u mapaddr: %p ptr: %p\n",
           dst, page, offset, mapaddr, ptr);
    printk("mapping %p mapping_mapped %d\n", page->mapping,
	   page->mapping ? mapping_mapped(page->mapping): 0);

    memcpy(ptr, src, size);

    flush_kernel_dcache_page(mapaddr);
    kunmap_atomic(mapaddr, KM_USER0);

    set_page_dirty_lock(page);
    page_cache_release(page);

    return 0;
}

static int my_copy_from_user2(char *dst, const char __user *src, size_t size)
{
    int err;
    struct page *page;
    unsigned long addr = (unsigned long) src;
    unsigned offset = addr % PAGE_SIZE;
    void *mapaddr;
    void *ptr;
    if (offset + size > PAGE_SIZE)
        return -EINVAL;

    down_read(&current->mm->mmap_sem);
    err = get_user_pages(current, current->mm, addr, 1, 0, 0, &page, NULL);
    up_read(&current->mm->mmap_sem);
    if (err < 0)
        return err;
    BUG_ON(err != 1);
    mapaddr = kmap_atomic(page, KM_USER0);
    ptr = mapaddr + offset;

    printk("src: %p page: %p offset: %u mapaddr: %p ptr: %p\n",
           src, page, offset, mapaddr, ptr);

    memcpy(dst, ptr, size);

    kunmap_atomic(mapaddr, KM_USER0);
    put_page(page);

    return 0;
}


static ssize_t test_read(struct file *file, char __user *buf, size_t nbytes,
                         loff_t *off)
{
    ssize_t res = 0;
    char hello[] = "Hello!\n";
    size_t hellolen = strlen(hello);
    printk("test_read %p %lu %llu\n", buf, (unsigned long) nbytes,
           (unsigned long long) *off);
    if (!*off && nbytes > hellolen) {
        res = my_copy_to_user2(buf, hello, hellolen);
        if (!res) {
            *off += hellolen;
            res = hellolen;
        }
    }
    printk("  test_read: %li\n", (long) res);
    return res;
}

static ssize_t test_write(struct file *file, const char __user *buf,
                          size_t nbytes, loff_t *off)
{
    ssize_t res = nbytes;
    char hello[32];
    printk("test_write %p %lu %llu\n", buf, (unsigned long) nbytes,
           (unsigned long long) *off);
    if (!*off && nbytes < sizeof(hello) - 1) {
        res = my_copy_from_user2(hello, buf, nbytes);
        if (!res) {
            hello[nbytes] = '\0';
            printk("<%s>\n", hello);
            *off += nbytes;
            res = nbytes;
        }
    }
    printk("  test_write: %li\n", (long) res);
    return res;
}

static struct file_operations test_ops = {
	.owner		= THIS_MODULE,
	.read		= test_read,
	.write		= test_write,
};

static int test_init(void)
{
    struct proc_dir_entry *ent;
    ent = create_proc_entry("test", S_IFREG | 0666, proc_root_fs);
    if (ent)
        ent->proc_fops = &test_ops;
    return 0;
}

static void test_exit(void)
{
    remove_proc_entry("test", proc_root_fs);
}

module_init(test_init);
module_exit(test_exit);


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Cc: fuse-devel@lists.sourceforge.net,
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 Chris Frost <chris@frostnet.net>,
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Xref: news.gmane.org gmane.linux.ports.parisc:25276

On Sun, 19 Mar 2006, James Bottomley wrote:
> 
> However, the problem appears to be that the user pointer is coming from
> malloc'd memory, which is of type PAGE_MAPPING_ANON.  This flag ensures
> that page_mapping(page) returns NULL and thus that flush_dcache_page()
> on parisc never actually does any user space flushes.
> 
> The reason you see nothing when you cat /proc/fs/test is that these
> PAGE_MAPPING_ANON pages for malloc() have a nice trick where the
> clear_user_highpage() function blasts a string of zeros over them via
> the cache in user space, so they're cache incoherent; you can modify the
> underlying page as much as you like, but the data the user sees is the
> zeros until the page is flushed.  This is the essence of the problem:
> flush_dcache_page() isn't bringing these user pages back into coherency.
> 
> Just as proof of this, if you uncomment the asm in my_copy_to_user2,
> you'll see everything work correctly, because this asm statement forces
> coherency on the user page.
> 
> So, Hugh, you were the one who introduced this anonymous page behaviour;
> how are we supposed to obtain coherency for these pages?

I don't think I changed any behaviour here, just implemention details
(what you might expect to find stored in "page->mapping" in different
circumstances).  Comparing current parisc source against 2.6.5 source
(several releases before PAGE_MAPPING_ANON) bears that out, doesn't it?
page->mapping on anonymous pages at that time would have been NULL (or
&swapper_space if the page happened to have some swap assigned to it).

Isn't the point simply that anonymous pages are never writably shared,
and so don't require the coherency measures that shared writable pages
do?  Anonymous pages may be shared readonly between children and parent
of fork (and any modification requires Copy-On-Write at either end).
There are MAP_SHARED|MAP_ANONYMOUS pages, but those are implemented
like shared memory, as pages of an underlying tmpfs object (to which
page->mapping will point as for a normal file).

Whereas now Chris is working on a /proc file which gives access to
anonymous pages by a backdoor?  That's new territory, and may indeed
need something special such as you appended.  It might be something
very useful for local use, but I doubt it would be accepted into a
mainline kernel.

Hugh
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Subject: Re: [parisc-linux] Re: [fuse-devel] Example filesystem fail to init
	on parisc
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Cc: fuse-devel@lists.sourceforge.net,
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On Sun, 19 Mar 2006, James Bottomley wrote:
> 
> Well, yes, I think fuse is guilty to some degree.  However, the same
> situation would prevail if anonymous memory were sent down to our other
> kernel<->user mapping routines, like SG_IO for instance.  Perhaps we
> should be doing early cow breaking for anonymous pages we know we're
> going to write to?

Certainly, that is part of what copy_to_user and get_user_pages(,,,,1,,,)
(and ordinary userspace writing) guarantee.  So if there's some new route
by which userspace pages may be modified on behalf of the user, never mind
the architecture-specific cache coherency issues, COWs must be broken to
preserve the semantics of fork.

drivers/scsi/sg.c looks like it makes all the necessary calls to
__copy_to_user or get_user_pages... but it's not hard to fool me.

Hugh
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Re: [fuse-devel] Example filesystem fail to
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Date: Sun, 19 Mar 2006 09:46:31 -0600
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On Sun, 2006-03-19 at 15:38 +0000, Hugh Dickins wrote:
> Certainly, that is part of what copy_to_user and get_user_pages(,,,,1,,,)
> (and ordinary userspace writing) guarantee.  So if there's some new route
> by which userspace pages may be modified on behalf of the user, never mind
> the architecture-specific cache coherency issues, COWs must be broken to
> preserve the semantics of fork.

Yes, that's where I think the problem lies.  For an anonymous unshared
page, the user view of the cache may still be dirty.  get_user_pages()
only seems to use flush_dcache_page() to restore coherency, which won't
work on anon pages.  Thus, get_user_pages() for an anon page is
returning a page to the kernel that still has an incoherent user cache,
which is what causes the issues in the copytest module.

> drivers/scsi/sg.c looks like it makes all the necessary calls to
> __copy_to_user or get_user_pages... but it's not hard to fool me.

Yes ... and the copytest module has an almost exact duplicate of that
code ... it's the actual get_user_pages() where I think we have
coherency issues ... I've verified that it is returning an incoherent
page if the underlying user page is PAGE_MAPPING_ANON.

James


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On Sun, 19 Mar 2006, James Bottomley wrote:
> On Sun, 2006-03-19 at 15:38 +0000, Hugh Dickins wrote:
> > Certainly, that is part of what copy_to_user and get_user_pages(,,,,1,,,)
> > (and ordinary userspace writing) guarantee.  So if there's some new route
> > by which userspace pages may be modified on behalf of the user, never mind
> > the architecture-specific cache coherency issues, COWs must be broken to
> > preserve the semantics of fork.
> 
> Yes, that's where I think the problem lies.  For an anonymous unshared
> page, the user view of the cache may still be dirty.  get_user_pages()
> only seems to use flush_dcache_page() to restore coherency, which won't
> work on anon pages.  Thus, get_user_pages() for an anon page is
> returning a page to the kernel that still has an incoherent user cache,
> which is what causes the issues in the copytest module.
> 
> > drivers/scsi/sg.c looks like it makes all the necessary calls to
> > __copy_to_user or get_user_pages... but it's not hard to fool me.
> 
> Yes ... and the copytest module has an almost exact duplicate of that
> code ... it's the actual get_user_pages() where I think we have
> coherency issues ... I've verified that it is returning an incoherent
> page if the underlying user page is PAGE_MAPPING_ANON.

It sounds like an issue you need to raise on linux-arch?  I've no idea
whether it's the parisc implementation of flush_dcache_page which is
at fault (skipping anonymous pages), or that get_user_pages ought to
be calling something stronger (something new?).  Remember, I'm one of
those x86 people with only a nursery-school grasp of coherency issues.

I do see that when flush_dcache_page was added into get_user_pages in
2.5.46, the parisc flush_dcache_page looked to be doing something else,
something which would have caught the anonymous pages.  And I just
looked up the ChangeLog-2.5.46 entry, below: akpm and davem CC'ed.

<akpm@digeo.com>
  [PATCH] flush_dcache_page in get_user_pages()
  
  Davem said:
  
  "Ho hum, it is tricky :-)))
  
   At bio_map_user() you need to see the user's most recent write to the
   page if you are going "user --> device".  So if "user --> device"
   bio_map_user() must flush_dcache_page().
  
   I find the write_to_vm condition confusion which is probably why I am
   sitting here spelling this out :-)
  
   At bio_unmap_user(), if we are going "device --> user" you have to
   flush_dcache_page().  And actually, this flush could just as
   legitimately occur at bio_map_user() time.
  
   Therefore, the easiest thing to do is always flush_dcache_page() at
   bio_map_user().
  
   All the other cases are going to be like this, so we might as well
   cut to the chase and flush_dcache_page() for all the pages inside of
   get_user_pages()."
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Cc: Andrew Morton <akpm@osdl.org>,
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 Chris Frost <chris@frostnet.net>,
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On Sun, 2006-03-19 at 16:37 +0000, Hugh Dickins wrote:
> It sounds like an issue you need to raise on linux-arch?  I've no idea

Yes ... I think so.  I think the issue is that get_user_pages() has to
guarantee that every page it gets has no dirty user cache above it.

> whether it's the parisc implementation of flush_dcache_page which is
> at fault (skipping anonymous pages), or that get_user_pages ought to
> be calling something stronger (something new?).  Remember, I'm one of
> those x86 people with only a nursery-school grasp of coherency issues.

It seems to me that flush_dcache_page() should sweep up anonymous pages
as well ... as long as we have this pre-emptive coherency model where we
only call flush_dcache_page() once on entry so that as long as we exit
to user level having modified the underlying page memory (and the user
hasn't done anything to bring the page into their cache) then everything
works.

> I do see that when flush_dcache_page was added into get_user_pages in
> 2.5.46, the parisc flush_dcache_page looked to be doing something else,
> something which would have caught the anonymous pages.  And I just
> looked up the ChangeLog-2.5.46 entry, below: akpm and davem CC'ed.

Yes, I suspect our implementation should just sweep up anon pages
again ... However, I'll also compose a mailing for linux-arch just to be
sure we're all on the same page (no pun intended).

James


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On Sun, 2006-03-19 at 10:52 +0000, Hugh Dickins wrote:
> > So, Hugh, you were the one who introduced this anonymous page behaviour;
> > how are we supposed to obtain coherency for these pages?
> 
> I don't think I changed any behaviour here, just implemention details
> (what you might expect to find stored in "page->mapping" in different
> circumstances).  Comparing current parisc source against 2.6.5 source
> (several releases before PAGE_MAPPING_ANON) bears that out, doesn't it?
> page->mapping on anonymous pages at that time would have been NULL (or
> &swapper_space if the page happened to have some swap assigned to it).

OK ... I just remember you introducing the page_mapping() macro ...

> Isn't the point simply that anonymous pages are never writably shared,
> and so don't require the coherency measures that shared writable pages
> do?  Anonymous pages may be shared readonly between children and parent
> of fork (and any modification requires Copy-On-Write at either end).
> There are MAP_SHARED|MAP_ANONYMOUS pages, but those are implemented
> like shared memory, as pages of an underlying tmpfs object (to which
> page->mapping will point as for a normal file).

Yes, this is precisely the point.  While it is true that anonymous pages
shouldn't be writeably shared and therefore no coherence measures should
be necessary between user space processes, anonymous pages are still not
congruently mapped in our kernel, so we have to take coherency measures
when trying to view them from the kernel.

> Whereas now Chris is working on a /proc file which gives access to
> anonymous pages by a backdoor?  That's new territory, and may indeed
> need something special such as you appended.  It might be something
> very useful for local use, but I doubt it would be accepted into a
> mainline kernel.

Well, yes, I think fuse is guilty to some degree.  However, the same
situation would prevail if anonymous memory were sent down to our other
kernel<->user mapping routines, like SG_IO for instance.  Perhaps we
should be doing early cow breaking for anonymous pages we know we're
going to write to?

James


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> Yes, I suspect our implementation should just sweep up anon pages
> again ... However, I'll also compose a mailing for linux-arch just to be
> sure we're all on the same page (no pun intended).

Hi James,

I've seen you submitted the needed API changes on lkml.  Do you also
have the parisc implementation for Chris to try out?

Thanks,
Miklos
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Xref: news.gmane.org gmane.linux.ports.parisc:25283

On Tue, Mar 28, 2006 at 01:00:42PM +0200, Miklos Szeredi wrote:
> Hi James,
> 
> I've seen you submitted the needed API changes on lkml.  Do you also
> have the parisc implementation for Chris to try out?
>

He committed it to cvs... I should have it divvied up and sent
to Linus by the weekend. In the meantime, try this patch against
2.6.16 (which is the parisc patchset) 
http://cvs.parisc-linux.org/download/linux-2.6/patch-2.6.16-pa8.gz 

Cheers,
	Kyle
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Subject: [parisc-linux] Any good rules of pratice about branching insn into
 the delay slot of another one?
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Xref: news.gmane.org gmane.linux.ports.parisc:25284

Hello all,

This question about latest test related to some glibc clone().

This patch:
   # diff -Nau clone.S.orig2 clone.S.New4
--- clone.S.orig2       2006-03-24 09:11:27.000000000 +0000
+++ clone.S.New4        2006-03-31 17:42:25.000000000 +0000
@@ -45,7 +45,31 @@

          .text
  ENTRY(__clone)
+    /* this ENTRY() macro do: stw rp, -20(sp)
+       and "FIXME: I have no idea how profiling works on hppa." */

+       /* Sanity check arguments.  */
+       comib,=         0, %arg0, .Larg_error           /* no NULL function pointers */
+       nop
+       comib,<>,n      0, %arg1, .Lno_arg_error        /* no NULL stack pointers */
+       nop
+
+.Larg_error:
+       /* Create a stack frame */
+/*     stwm            %r3, 64(%sp) */
+       ldo             64(%sp), %sp
+       /* Set errno */
+       bl              __syscall_error, %rp
+       ldi             EINVAL, %arg0
+
+       /* Return after setting errno */
+       /* Restore rp from ENTRY() */
+       ldw             -84(%sp), %rp
+       bv              %r0(%rp)
+/*     ldwm            -64(%sp), %r3 */
+       ldo             -64(%sp), %sp
+
+.Lno_arg_error:
         /* Save the fn ptr and arg on the new stack.  */
         stwm            %arg0, 64(%arg1)
         stw             %arg3, -60(%arg1)
@@ -75,8 +99,10 @@
         ldi             -4096, %r1
         comclr,>>=      %r1, %ret0, %r0         /* Note: unsigned compare. */
         b,n             .Lerror
+       nop

         comib,=,n       0, %ret0, thread_start
+       nop                                     /* to avoid bv in the delay slot? */

         /* Successful return from the parent
            No need to restore the PIC register,
@@ -94,10 +120,12 @@
  #endif
         /* Set errno */
         copy            %ret0, %r3
-       b               __syscall_error
+       bl              __syscall_error, %rp
         sub             %r0, %ret0, %arg0
         copy            %r3, %ret0
         /* Return after setting errno */
+       /* Restore rp from ENTRY() */
+       ldw             -84(%sp), %rp
         bv              %r0(%rp)
         ldwm            -64(%sp), %r3

====<>====

seems to works seems to be ok:
# grep Err glibc-2.3.6-4.3.1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/localedata/sort-test.out] Error 1
make[2]: *** [localedata/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-float.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-double.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-idouble.out] Error 1
make[2]: *** [math/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/tst-rxspencer.out] Error 139
make[3]: [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/annexc.out] Error 1 (ignored)
make[2]: *** [posix/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/linuxthreads/tst-attr1.out] Error 1
make[2]: *** [linuxthreads/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-timer.out] Error 137
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-aio4.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-timer4.out] Error 1
make[2]: *** [rt/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/elf/tst-execstack-needed.out] Error 1
make[2]: *** [elf/tests] Error 2
make[1]: *** [check] Error 2

(well doesn't seems to introduce regression in test)

OTOH if I remove the nop I added in delay slot of 'b,n .Lerror' and 'comib,=,n 0, %ret0, thread_start' i.e. rm hunk:
@@ -75,8 +99,10 @@
         ldi             -4096, %r1
         comclr,>>=      %r1, %ret0, %r0         /* Note: unsigned compare. */
         b,n             .Lerror
+       nop

         comib,=,n       0, %ret0, thread_start
+       nop                                     /* to avoid bv in the delay slot? */

         /* Successful return from the parent
            No need to restore the PIC register,

test became very regressive:
# grep Err glibc-2.3.6-4.3.2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/iconvdata/tst-iconv4.out] Error 1
make[2]: *** [iconvdata/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/localedata/sort-test.out] Error 1
make[2]: *** [localedata/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-float.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-double.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/math/test-idouble.out] Error 1
make[2]: *** [math/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/stdio-common/tst-rndseek.out] Error 1
make[2]: *** [stdio-common/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/libio/bug-mmap-fflush.out] Error 1
make[2]: *** [libio/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/tst-chmod.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/bug-regex24.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/tst-regex2.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/tst-rxspencer.out] Error 139
make[3]: [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/posix/annexc.out] Error 1 (ignored)
make[2]: *** [posix/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/linuxthreads/tst-attr1.out] Error 1
make[2]: *** [linuxthreads/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-clock.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-timer.out] Error 139
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-aio4.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-aio5.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-aio6.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-timer3.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/rt/tst-timer4.out] Error 1
make[2]: *** [rt/tests] Error 2
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/elf/tst-tls13.out] Error 1
make[3]: *** [/CAD/parisc-linux/Dpkg/dpkg-work/glibc-2.3.6/build-tree/hppa-libc/elf/tst-execstack-prog.out] Error 1
make[2]: *** [elf/tests] Error 2
make[1]: *** [check] Error 2

Thanks in advance for advise,
	Joel
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> This question about latest test related to some glibc clone().

why don't you try to step through the code with gdb (using stepi) and 
see the sequence of insns that get executed in the different cases?

randolph
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Subject: [parisc-linux] LBA ioremap problem
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I've tried to fix the problem with running out of vmalloc space on
N-class with this patch.  Unfortunately, the system hangs when trying
to access the *second* sym2 controller.  The debug shows it happily
reading and writing the ethernet controller and the first sym2
controller.  Help?

Index: drivers/parisc/lba_pci.c
===================================================================
RCS file: /var/cvs/linux-2.6/drivers/parisc/lba_pci.c,v
retrieving revision 1.39
diff -u -p -r1.39 lba_pci.c
--- drivers/parisc/lba_pci.c	27 Mar 2006 19:52:14 -0000	1.39
+++ drivers/parisc/lba_pci.c	3 Apr 2006 17:55:08 -0000
@@ -199,7 +199,7 @@ struct lba_device {
 	void		*iosapic_obj;
 
 #ifdef CONFIG_64BIT
-	void __iomem *	iop_base;    /* PA_VIEW - for IO port accessor funcs */
+	unsigned long	iop_base;    /* PA_VIEW - for IO port accessor funcs */
 #endif
 
 	int		flags;       /* state/functionality enabled */
@@ -1048,8 +1048,8 @@ static struct pci_port_ops lba_astro_por
 
 
 #ifdef CONFIG_64BIT
-#define PIOP_TO_GMMIO(lba, addr) \
-	((lba)->iop_base + (((addr)&0xFFFC)<<10) + ((addr)&3))
+#define PORT_BASE(l, addr) \
+	(LBA_DEV(l)->iop_base + (((addr)&0xFFFC)<<10) + ((addr)&3))
 
 /*******************************************************
 **
@@ -1064,35 +1064,37 @@ static struct pci_port_ops lba_astro_por
 ** Then add the base and we can generate an I/O Port cycle.
 ********************************************************/
 #undef LBA_PORT_IN
-#define LBA_PORT_IN(size, mask) \
+#define LBA_PORT_IN(size, bwl) \
 static u##size lba_pat_in##size (struct pci_hba_data *l, u16 addr) \
 { \
 	u##size t; \
 	DBG_PORT("%s(0x%p, 0x%x) ->", __FUNCTION__, l, addr); \
-	t = READ_REG##size(PIOP_TO_GMMIO(LBA_DEV(l), addr)); \
+	printk("reading a " #bwl " from 0x%lx\n", PORT_BASE(l, addr)); \
+	t = gsc_read##bwl(PORT_BASE(l, addr)); \
 	DBG_PORT(" 0x%x\n", t); \
 	return (t); \
 }
 
-LBA_PORT_IN( 8, 3)
-LBA_PORT_IN(16, 2)
-LBA_PORT_IN(32, 0)
+LBA_PORT_IN( 8, b)
+LBA_PORT_IN(16, w)
+LBA_PORT_IN(32, l)
 
 
 #undef LBA_PORT_OUT
-#define LBA_PORT_OUT(size, mask) \
+#define LBA_PORT_OUT(size, bwl) \
 static void lba_pat_out##size (struct pci_hba_data *l, u16 addr, u##size val) \
 { \
-	void *where = (void *) PIOP_TO_GMMIO(LBA_DEV(l), addr); \
 	DBG_PORT("%s(0x%p, 0x%x, 0x%x)\n", __FUNCTION__, l, addr, val); \
-	WRITE_REG##size(val, where); \
+	printk("writing a " #bwl " to 0x%lx\n", PORT_BASE(l, addr)); \
+	gsc_write##bwl(val, PORT_BASE(l, addr)); \
 	/* flush the I/O down to the elroy at least */ \
+	printk("reading back from Elroy\n"); \
 	lba_t32 = READ_U32(l->base_addr + LBA_FUNC_ID); \
 }
 
-LBA_PORT_OUT( 8, 3)
-LBA_PORT_OUT(16, 2)
-LBA_PORT_OUT(32, 0)
+LBA_PORT_OUT( 8, b)
+LBA_PORT_OUT(16, w)
+LBA_PORT_OUT(32, l)
 
 
 static struct pci_port_ops lba_pat_port_ops = {
@@ -1213,7 +1215,8 @@ lba_pat_resources(struct parisc_device *
 			** Postable I/O port space is per PCI host adapter.
 			** base of 64MB PIOP region
 			*/
-			lba_dev->iop_base = ioremap_nocache(p->start, 64 * 1024 * 1024);
+			lba_dev->iop_base = p->start;
+			printk("iop_base = 0x%lx\n", lba_dev->iop_base);
 
 			sprintf(lba_dev->hba.io_name, "PCI%02lx Ports",
 					lba_dev->hba.bus_num.start);

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From: "Joel Soete" <soete.joel@tiscali.be>
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Subject: [parisc-linux] Re: Any good rules of pratice about branching insn
	into the delay slot of another one?
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--_=__=_XaM3_.1145434181.2A.846775.42.7669.52.42.007.991917301
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> On 4/3/06, Joel Soete <soete.joel@tiscali.be> wrote:
> > as well the reference test clone04:
> >
> > # ./clone04 ; echo $?
> > clone04     1  PASS  :  expected failure; Got EINVAL
> > 0
> 
> What was the outcome of this whole thread?
> In summary what needs to be fixed?
> 
Over glibc cvs available at p-l.org this is the best I can do:
--- clone.S.orig2       2006-03-24 10:11:27.000000000 +0100
+++ clone.S.New6        2006-04-13 09:21:11.000000000 +0200
@@ -45,7 +45,29 @@
 
         .text
 ENTRY(__clone)
+    /* this ENTRY() macro do: stw rp, -20(sp)
+       and "FIXME: I have no idea how profiling works on hppa." */
 
+       /* Sanity check arguments.  */
+       comib,=3D         0, %arg0, .Larg_error           /* no NULL func=
tion
pointers */
+       nop                                             /* delay slot */
+       comib,<>,n      0, %arg1, .Lno_arg_error        /* no NULL stack
pointers */
+       nop                                             /* delay slot */
+
+.Larg_error:
+       /* Create a stack frame */
+       ldo             64(%sp), %sp
+       /* Set errno (in the delay slot) */
+       bl              __syscall_error, %rp
+       ldi             EINVAL, %arg0
+
+       /* Return after setting errno */
+       /* Restore rp from ENTRY() */
+       ldw             -84(%sp), %rp
+       bv              %r0(%rp)
+       ldo             -64(%sp), %sp
+
+.Lno_arg_error:
        /* Save the fn ptr and arg on the new stack.  */
        stwm            %arg0, 64(%arg1)
        stw             %arg3, -60(%arg1)
@@ -63,41 +85,40 @@
        stwm            %r3, 64(%sp)
        stw             %r21, -4(%sp)
 
-       /* Save the PIC register. */
-#ifdef PIC
-       copy            %r19, %r3               /* parent */
-#endif
+       SAVE_PIC (TREG)
 
        /* Do the system call */
        ble             0x100(%sr2, %r0)
-       ldi             __NR_clone, %r20
+       ldi             SYS_ify (clone), %r20
 
-       ldi             -4096, %r1
-       comclr,>>=3D      %r1, %ret0, %r0         /* Note: unsigned compa=
re. */
+       ldi             NO_ERROR, %r1
+       comclr,>>=3D      %r1, %ret0, %r20        /* Note: unsigned compa=
re. */
        b,n             .Lerror
+       nop                     /* to avoid next br insn in the delay slo=
t? */
 
        comib,=3D,n       0, %ret0, thread_start
+       nop                     /* to avoid next br insn in the delay slo=
t? */
 
        /* Successful return from the parent
           No need to restore the PIC register, 
           since we return immediately. */
-
        bv              %r0(%rp)
        ldwm            -64(%sp), %r3
 
        /* Something bad happened -- no child created */
 .Lerror:
 
-       /* Restore the PIC register on error */
-#ifdef PIC
-       copy            %r3, %r19               /* parent */ 
-#endif
-       /* Set errno */
-       copy            %ret0, %r3
-       b               __syscall_error
+       LOAD_PIC (TREG)
+
+       /* Use TREG for temp storage */
+       copy            %ret0, TREG
+       /* Set errno (in the delay slot) */
+       bl              __syscall_error, %rp
        sub             %r0, %ret0, %arg0
-       copy            %r3, %ret0
+       copy            TREG, %ret0
        /* Return after setting errno */
+       /* Restore rp from ENTRY() */
+       ldw             -84(%sp), %rp
        bv              %r0(%rp)
        ldwm            -64(%sp), %r3
 
=3D=3D=3D=3D<>=3D=3D=3D=3D

I tried (but without success) to inline  __syscall_error().

Hth,
    Joel

PS: 
  1/ debian gcc-4.0 still lake of a jda patch
  2/ against latest debian libc6 src (2.3.6-7) I applied attached patches=
:
     tls-sysdeps-ng.diff; tst-clone.S.diff
--_=__=_XaM3_.1145434181.2A.846775.42.7669.52.42.007.991917301
Content-Type: text/plain;
	name="=?iso-8859-1?Q?tls-sysdeps-ng.diff?="
Content-Transfer-Encoding: quoted-printable
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--- glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/sysdep.c.orig	2006-04-05 14:=
35:11.000000000 +0200=0A+++ glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/sysd=
ep.c	2006-04-05 14:33:21.000000000 +0200=0A@@ -16,12 +16,12 @@=0A    Soft=
ware Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA=0A    02111=
-1307 USA.  */=0A =0A+#include <stdarg.h>=0A #include <sysdep.h>=0A #incl=
ude <errno.h>=0A =0A extern int __syscall_error(int err_no);=0A-extern in=
t syscall (int sysnum, int arg0, int arg1, int arg2,=0A-		    int arg3, i=
nt arg4, int arg5);=0A+extern long int syscall (long int __sysno, ...) __=
THROW;=0A =0A /* This routine is jumped to by all the syscall handlers, t=
o stash=0A    an error number into errno.  */=0A@@ -37,21 +37,34 @@=0A   =
 typically be in syscall.S. Also note that we have INLINE_SYSCALL,=0A    =
INTERNAL_SYSCALL, and all the generated pure assembly syscall wrappers.=0A=
    How often the function is used is unknown. */=0A-int=0A-syscall (int =
sysnum, int arg0, int arg1, int arg2, int arg3, int arg4,=0A-	 int arg5)=0A=
+=0A+long int =0A+syscall (long int __sysno, ...) =0A {=0A   /* FIXME: Ke=
ep this matching INLINE_SYSCALL for hppa */=0A+  va_list args;=0A+  long =
int arg0, arg1, arg2, arg3, arg4, arg5;=0A   long int __sys_res;=0A+=0A+ =
 /* Load varargs */=0A+  va_start (args, __sysno);=0A+  arg0 =3D va_arg (=
args, long int);=0A+  arg1 =3D va_arg (args, long int);=0A+  arg2 =3D va_=
arg (args, long int);=0A+  arg3 =3D va_arg (args, long int);=0A+  arg4 =3D=
 va_arg (args, long int);=0A+  arg5 =3D va_arg (args, long int);=0A+  va_=
end (args);=0A+  =0A   {=0A     register unsigned long int __res asm("r28=
");=0A     LOAD_ARGS_6 (arg0, arg1, arg2, arg3, arg4, arg5)=0A     asm vo=
latile (SAVE_ASM_PIC=0A-		  "	ble  0x100(%%sr2, %%r0)	\n"=0A-		  "	copy %=
1, %%r20		\n"=0A+		  "	ble		0x100(%%sr2, %%r0)	\n"=0A+		  "	copy		%1, %%r=
20		\n"=0A 		  LOAD_ASM_PIC=0A 		  : "=3Dr" (__res)=0A-		  : "r" (sysnum)=
 ASM_ARGS_6=0A+		  : "r" (__sysno) ASM_ARGS_6=0A 		  : "memory", CALL_CLO=
B_REGS CLOB_ARGS_6);=0A     __sys_res =3D __res;=0A   }=0A@@ -62,3 +75,4 =
@@=0A     }=0A   return __sys_res;=0A }=0A+=0A--- glibc-2.3.6/sysdeps/uni=
x/sysv/linux/hppa/sysdep.h.orig	2006-04-05 14:35:11.000000000 +0200=0A+++=
 glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/sysdep.h	2006-04-05 15:16:15.00=
0000000 +0200=0A@@ -22,7 +22,6 @@=0A #include <asm/unistd.h>=0A #include =
<sysdeps/generic/sysdep.h>=0A #include <sys/syscall.h>=0A-#include "confi=
g.h"=0A =0A #undef ASM_LINE_SEP=0A #define ASM_LINE_SEP ! =0A@@ -35,12 +3=
4,12 @@=0A    to another function */=0A #ifdef PIC=0A # define TREG %r3=0A=
-# define SAVE_PIC(SREG) copy %r19, SREG ASM_LINE_SEP=0A-# define LOAD_PI=
C(LREG) copy LREG, %r19 ASM_LINE_SEP=0A+# define SAVE_PIC(SREG) copy		%r1=
9, SREG	ASM_LINE_SEP=0A+# define LOAD_PIC(LREG) copy		LREG, %r19	ASM_LINE=
_SEP=0A /* Inline assembly defines */=0A # define TREG_ASM "%r4" /* Cant =
clobber r3, it holds framemarker */=0A-# define SAVE_ASM_PIC	"       copy=
 %%r19, %" TREG_ASM "\n"=0A-# define LOAD_ASM_PIC	"       copy %" TREG_AS=
M ", %%r19\n"=0A+# define SAVE_ASM_PIC	"       copy		%%r19, %" TREG_ASM "=
\n"=0A+# define LOAD_ASM_PIC	"       copy		%" TREG_ASM ", %%r19\n"=0A # d=
efine USING_TREG	TREG_ASM,=0A #else=0A # define TREG %r3=0A@@ -97,8 +96,8=
 @@=0A #define DOARGS_2 /* nothing */=0A #define DOARGS_3 /* nothing */=0A=
 #define DOARGS_4 /* nothing */=0A-#define DOARGS_5 ldw -52(%sp), %r22		A=
SM_LINE_SEP=0A-#define DOARGS_6 DOARGS_5 ldw -56(%sp), %r21	ASM_LINE_SEP=0A=
+#define DOARGS_5 ldw		-52(%sp), %r22		ASM_LINE_SEP=0A+#define DOARGS_6 D=
OARGS_5 ldw		-56(%sp), %r21	ASM_LINE_SEP=0A =0A #define UNDOARGS_0 /* not=
hing */=0A #define UNDOARGS_1 /* nothing */=0A@@ -123,14 +122,14 @@=0A 	.=
CALLINFO FRAME=3D64,CALLS,SAVE_RP,ENTRY_GR=3D3	ASM_LINE_SEP	\=0A 	.ENTRY	=
					ASM_LINE_SEP	\=0A 	/* SAVE_RP says we do */			ASM_LINE_SEP	\=0A-	stw=
 %rp, -20(%sr0,%sp)				ASM_LINE_SEP	\=0A+	stw		%rp, -20(%sr0, %sp)		ASM_L=
INE_SEP	\=0A 	/*FIXME: Call mcount? (carefull with stack!) */=0A =0A /* S=
ome syscall wrappers do not call other functions, and=0A    hence are cla=
ssified as leaf, so add NO_CALLS for gdb */=0A #define	ENTRY_LEAF(name)		=
				\=0A 	.text						ASM_LINE_SEP	\=0A-	.align ALIGNARG(4)				ASM_LINE_SE=
P	\=0A+	.align	ALIGNARG(4)				ASM_LINE_SEP	\=0A 	.export C_SYMBOL_NAME(na=
me)			ASM_LINE_SEP	\=0A 	.type	C_SYMBOL_NAME(name),@function		ASM_LINE_SE=
P	\=0A 	C_LABEL(name)					ASM_LINE_SEP	\=0A@@ -138,12 +137,12 @@=0A 	.CAL=
LINFO FRAME=3D64,NO_CALLS,SAVE_RP,ENTRY_GR=3D3	ASM_LINE_SEP	\=0A 	.ENTRY	=
					ASM_LINE_SEP	\=0A 	/* SAVE_RP says we do */			ASM_LINE_SEP	\=0A-	stw=
 %rp, -20(%sr0,%sp)				ASM_LINE_SEP	\=0A+	stw		%rp, -20(%sr0, %sp)		ASM_L=
INE_SEP	\=0A 	/*FIXME: Call mcount? (carefull with stack!) */=0A =0A #und=
ef	END=0A #define END(name)							\=0A-  	.EXIT						ASM_LINE_SEP	\=0A+ 	=
.EXIT						ASM_LINE_SEP	\=0A 	.PROCEND					ASM_LINE_SEP	\=0A .size	C_SYMB=
OL_NAME(name), .-C_SYMBOL_NAME(name)	ASM_LINE_SEP=0A =0A@@ -166,50 +165,5=
0 @@=0A 	nop=0A */=0A =0A-#define	PSEUDO(name, syscall_name, args)			\=0A=
-  ENTRY (name)					ASM_LINE_SEP	\=0A-  /* If necc. load args from stack =
*/		ASM_LINE_SEP	\=0A-  DOARGS_##args					ASM_LINE_SEP	\=0A-  DO_CALL (sy=
scall_name, args)			ASM_LINE_SEP	\=0A-  UNDOARGS_##args				ASM_LINE_SEP	\=
=0A-  nop						ASM_LINE_SEP=0A+#define	PSEUDO(name, syscall_name, args)		=
		\=0A+	ENTRY (name)					ASM_LINE_SEP	\=0A+	/* If necc. load args from st=
ack */		ASM_LINE_SEP	\=0A+	DOARGS_##args					ASM_LINE_SEP	\=0A+	DO_CALL (=
syscall_name, args)			ASM_LINE_SEP	\=0A+	UNDOARGS_##args					ASM_LINE_SEP=
	\=0A+	nop						ASM_LINE_SEP=0A =0A #define ret \=0A-  /* Return value se=
t by ERRNO code */		ASM_LINE_SEP	\=0A-  bv,n 0(2)					ASM_LINE_SEP=0A+	/*=
 Return value set by ERRNO code */	ASM_LINE_SEP	\=0A+	bv,n		0(2)				ASM_L=
INE_SEP=0A =0A #undef	PSEUDO_END=0A-#define	PSEUDO_END(name)					\=0A-  E=
ND (name)=0A+#define	PSEUDO_END(name)						\=0A+	END (name)=0A =0A /* We =
don't set the errno on the return from the syscall */=0A-#define	PSEUDO_N=
OERRNO(name, syscall_name, args)		\=0A-  ENTRY_LEAF (name)				ASM_LINE_SE=
P	\=0A-  DOARGS_##args					ASM_LINE_SEP	\=0A-  DO_CALL_NOERRNO (syscall_n=
ame, args)		ASM_LINE_SEP	\=0A-  UNDOARGS_##args				ASM_LINE_SEP	\=0A-  no=
p						ASM_LINE_SEP=0A+#define	PSEUDO_NOERRNO(name, syscall_name, args)		=
	\=0A+	ENTRY_LEAF (name)				ASM_LINE_SEP	\=0A+	DOARGS_##args					ASM_LINE=
_SEP	\=0A+	DO_CALL_NOERRNO (syscall_name, args)		ASM_LINE_SEP	\=0A+	UNDOA=
RGS_##args					ASM_LINE_SEP	\=0A+	nop						ASM_LINE_SEP=0A =0A-#define re=
t_NOERRNO ret=0A+#define ret_NOERRNO	ret=0A =0A #undef	PSEUDO_END_NOERRNO=
=0A-#define	PSEUDO_END_NOERRNO(name)				\=0A-  END (name)=0A+#define	PSEU=
DO_END_NOERRNO(name)					\=0A+	END (name)=0A =0A /* This has to return th=
e error value */=0A #undef  PSEUDO_ERRVAL=0A-#define PSEUDO_ERRVAL(name, =
syscall_name, args)			\=0A-  ENTRY_LEAF (name)				ASM_LINE_SEP	\=0A-  DOA=
RGS_##args					ASM_LINE_SEP	\=0A-  DO_CALL_ERRVAL (syscall_name, args)		A=
SM_LINE_SEP	\=0A-  UNDOARGS_##args				ASM_LINE_SEP	\=0A-  nop						ASM_LI=
NE_SEP=0A+#define PSEUDO_ERRVAL(name, syscall_name, args)				\=0A+	ENTRY_=
LEAF (name)				ASM_LINE_SEP	\=0A+	DOARGS_##args					ASM_LINE_SEP	\=0A+	DO=
_CALL_ERRVAL (syscall_name, args)		ASM_LINE_SEP	\=0A+	UNDOARGS_##args				=
	ASM_LINE_SEP	\=0A+	nop						ASM_LINE_SEP=0A =0A #define ret_ERRVAL ret=0A=
 =0A #undef	PSEUDO_END_ERRVAL=0A-#define PSEUDO_END_ERRVAL(name)					\=0A=
-	END(name)=0A+#define PSEUDO_END_ERRVAL(name)						\=0A+	END (name)=0A =0A=
 #undef JUMPTARGET=0A #define JUMPTARGET(name)	name=0A@@ -222,10 +221,10 =
@@=0A =0A /* int * __errno_location(void) so you have to store your value=
=0A    into the return address! */=0A-#define DEFAULT_SYSCALL_ERROR_HANDL=
ER 			\=0A-	.import __errno_location,code	ASM_LINE_SEP	\=0A-	/* branch to=
 errno handler */	ASM_LINE_SEP	\=0A-	bl __errno_location,%rp		ASM_LINE_SE=
P=0A+#define DEFAULT_SYSCALL_ERROR_HANDLER 					\=0A+	.import __errno_loc=
ation,code			ASM_LINE_SEP	\=0A+	/* branch to errno handler */			ASM_LINE_=
SEP	\=0A+	bl		__errno_location, %rp		ASM_LINE_SEP=0A =0A /* Here are the =
myriad of configuration options that the above can=0A    work for... what=
 we've done is provide the framework for future=0A@@ -249,7 +248,6 @@=0A =
# endif=0A #endif=0A =0A-=0A /* Linux takes system call arguments in regi=
sters:=0A 	syscall number	gr20=0A 	arg 1		gr26=0A@@ -278,61 +276,60 @@=0A=
 #define NO_ERROR -0x1000=0A =0A #undef	DO_CALL=0A-#define DO_CALL(syscal=
l_name, args)				\=0A-  	copy TREG,%r1				ASM_LINE_SEP	\=0A-	copy %sp,TRE=
G				ASM_LINE_SEP	\=0A-	/* Create a frame */			ASM_LINE_SEP	\=0A-	stwm %r=
1, 64(%sp)			ASM_LINE_SEP	\=0A-	stw %rp, -20(%sp)			ASM_LINE_SEP	\=0A-	st=
w TREG, -4(%sp)			ASM_LINE_SEP	\=0A-	/* Save r19 */				ASM_LINE_SEP	\=0A-=
	SAVE_PIC(TREG)				ASM_LINE_SEP	\=0A-	/* Do syscall, delay loads # */		AS=
M_LINE_SEP	\=0A-	ble  0x100(%sr2,%r0)			ASM_LINE_SEP	\=0A-	ldi SYS_ify (s=
yscall_name), %r20	ASM_LINE_SEP	\=0A-	ldi NO_ERROR,%r1			ASM_LINE_SEP	\=0A=
-	cmpb,>>=3D,n %r1,%ret0,L(pre_end)		ASM_LINE_SEP	\=0A-	/* Restore r19 fr=
om TREG */		ASM_LINE_SEP	\=0A-	LOAD_PIC(TREG) /* delay */		ASM_LINE_SEP	\=
=0A-	SYSCALL_ERROR_HANDLER			ASM_LINE_SEP	\=0A-	/* Use TREG for temp stor=
age */		ASM_LINE_SEP	\=0A-	copy %ret0, TREG /* delay */		ASM_LINE_SEP	\=0A=
-	/* OPTIMIZE: Don't reload r19 */	ASM_LINE_SEP	\=0A-	/* do a -1*syscall_=
ret0 */		ASM_LINE_SEP	\=0A-	sub %r0, TREG, TREG			ASM_LINE_SEP	\=0A-	/* S=
tore into errno location */		ASM_LINE_SEP	\=0A-	stw TREG, 0(%sr0,%ret0)		=
	ASM_LINE_SEP	\=0A-	/* return -1 as error */		ASM_LINE_SEP	\=0A-	ldo -1(%=
r0), %ret0			ASM_LINE_SEP	\=0A-L(pre_end):					ASM_LINE_SEP	\=0A-	/* Rest=
ore return pointer */		ASM_LINE_SEP	\=0A-	ldw -84(%sp),%rp			ASM_LINE_SEP=
	\=0A-	/* Restore our frame, restoring TREG */	ASM_LINE_SEP	\=0A-	ldwm -6=
4(%sp), TREG			ASM_LINE_SEP=0A+#define DO_CALL(syscall_name, args)					\=0A=
+  	copy		TREG, %r1			ASM_LINE_SEP	\=0A+	copy		%sp, TREG			ASM_LINE_SEP	\=
=0A+	/* Create a frame */				ASM_LINE_SEP	\=0A+	stwm		%r1, 64(%sp)			ASM_=
LINE_SEP	\=0A+	stw		%rp, -20(%sp)			ASM_LINE_SEP	\=0A+	stw		TREG, -4(%sp)=
			ASM_LINE_SEP	\=0A+	/* Save r19 */					ASM_LINE_SEP	\=0A+	SAVE_PIC (TRE=
G)					ASM_LINE_SEP	\=0A+	/* Do syscall, delay loads # */			ASM_LINE_SEP	=
\=0A+	ble		0x100(%sr2, %r0)		ASM_LINE_SEP	\=0A+	ldi		SYS_ify (syscall_nam=
e), %r20	ASM_LINE_SEP	\=0A+	ldi		NO_ERROR, %r1			ASM_LINE_SEP	\=0A+	cmpb,=
>>=3D,n	%r1, %ret0,L(pre_end)		ASM_LINE_SEP	\=0A+	/* Restore r19 from TRE=
G */			ASM_LINE_SEP	\=0A+	LOAD_PIC(TREG)			/* delay */	ASM_LINE_SEP	\=0A+=
	SYSCALL_ERROR_HANDLER				ASM_LINE_SEP	\=0A+	/* Use TREG for temp storage=
 */			ASM_LINE_SEP	\=0A+	copy		%ret0, TREG	/* delay */	ASM_LINE_SEP	\=0A+=
	/* OPTIMIZE: Don't reload r19 */		ASM_LINE_SEP	\=0A+	/* do a -1*syscall_=
ret0 */			ASM_LINE_SEP	\=0A+	sub		%r0, TREG, TREG			ASM_LINE_SEP	\=0A+	/*=
 Store into errno location */			ASM_LINE_SEP	\=0A+	stw		TREG, 0(%sr0, %re=
t0)		ASM_LINE_SEP	\=0A+	/* return -1 as error */			ASM_LINE_SEP	\=0A+	ldo=
		-1(%r0), %ret0			ASM_LINE_SEP	\=0A+L(pre_end):						ASM_LINE_SEP	\=0A+	=
/* Restore return pointer */			ASM_LINE_SEP	\=0A+	ldw		-84(%sp), %rp			AS=
M_LINE_SEP	\=0A+	/* Restore our frame, restoring TREG */		ASM_LINE_SEP	\=0A=
+	ldwm		-64(%sp), TREG			ASM_LINE_SEP=0A =0A /* We do nothing with the re=
turn, except hand it back to someone else */=0A #undef  DO_CALL_NOERRNO=0A=
-#define DO_CALL_NOERRNO(syscall_name, args)			\=0A-	/* No need to store =
r19 */		ASM_LINE_SEP	\=0A-	ble  0x100(%sr2,%r0)                    ASM_LI=
NE_SEP    \=0A-	ldi SYS_ify (syscall_name), %r20        ASM_LINE_SEP    \=
=0A-	/* Caller will restore r19 */		ASM_LINE_SEP=0A+#define DO_CALL_NOERR=
NO(syscall_name, args)				\=0A+	/* No need to store r19 */			ASM_LINE_SEP=
	\=0A+	ble		0x100(%sr2, %r0)		ASM_LINE_SEP    \=0A+	ldi		SYS_ify (syscall=
_name), %r20	ASM_LINE_SEP    \=0A+	/* Caller will restore r19 */			ASM_LI=
NE_SEP=0A =0A /* Here, we return the ERRVAL in assembly, note we don't ca=
ll the=0A    error handler function, but we do 'negate' the return _IF_=0A=
    it's an error. Not sure if this is the right semantic. */=0A =0A #und=
ef	DO_CALL_ERRVAL=0A-#define DO_CALL_ERRVAL(syscall_name, args)			\=0A-	/=
* No need to store r19 */		ASM_LINE_SEP	\=0A-	ble  0x100(%sr2,%r0)			ASM_=
LINE_SEP	\=0A-	ldi SYS_ify (syscall_name), %r20	ASM_LINE_SEP	\=0A-	/* Cal=
ler will restore r19 */		ASM_LINE_SEP	\=0A-	ldi NO_ERROR,%r1			ASM_LINE_S=
EP	\=0A-	cmpb,>>=3D,n %r1,%ret0,0f			ASM_LINE_SEP	\=0A-	sub %r0, %ret0, %=
ret0			ASM_LINE_SEP	\=0A-0:						ASM_LINE_SEP=0A-=0A+#define DO_CALL_ERRV=
AL(syscall_name, args)				\=0A+	/* No need to store r19 */			ASM_LINE_SEP=
	\=0A+	ble		0x100(%sr2, %r0)		ASM_LINE_SEP	\=0A+	ldi		SYS_ify (syscall_na=
me), %r20	ASM_LINE_SEP	\=0A+	/* Caller will restore r19 */			ASM_LINE_SEP=
	\=0A+	ldi		NO_ERROR, %r1			ASM_LINE_SEP	\=0A+	cmpb,>>=3D,n	%r1, %ret0, 0=
f			ASM_LINE_SEP	\=0A+	sub		%r0, %ret0, %ret0		ASM_LINE_SEP	\=0A+0:						=
	ASM_LINE_SEP=0A =0A #else=0A =0A@@ -360,8 +357,8 @@=0A 		/* FIXME: HACK =
save/load r19 around syscall */		\=0A 		asm volatile(						\=0A 			SAVE_A=
SM_PIC					\=0A-			"	ble  0x100(%%sr2, %%r0)\n"		\=0A-			"	ldi %1, %%r20\=
n"			\=0A+			"	ble		0x100(%%sr2, %%r0)\n"	\=0A+			"	ldi		%1, %%r20\n"		\=0A=
 			LOAD_ASM_PIC					\=0A 			: "=3Dr" (__res)					\=0A 			: "i" (SYS_ify(=
name)) ASM_ARGS_##nr		\=0A@@ -385,7 +382,7 @@=0A    In our case we just f=
lip the sign. */=0A =0A #undef INTERNAL_SYSCALL_DECL=0A-#define INTERNAL_=
SYSCALL_DECL(err) do { } while (0)=0A+#define INTERNAL_SYSCALL_DECL(err) =
=0A =0A /* Equivalent to  (val < 0)&&(val > -4095) which is what we want =
*/=0A #undef INTERNAL_SYSCALL_ERROR_P=0A@@ -406,8 +403,8 @@=0A 		/* FIXME=
: HACK save/load r19 around syscall */		\=0A 		asm volatile(						\=0A 		=
	SAVE_ASM_PIC					\=0A-			"	ble  0x100(%%sr2, %%r0)\n"		\=0A-			"	ldi %1,=
 %%r20\n"			\=0A+			"	ble	0x100(%%sr2, %%r0)\n"		\=0A+			"	ldi	%1, %%r20\=
n"			\=0A 			LOAD_ASM_PIC					\=0A 			: "=3Dr" (__res)					\=0A 			: "i" =
(SYS_ify(name)) ASM_ARGS_##nr		\=0A@@ -418,25 +415,49 @@=0A 	__sys_res;		=
					\=0A  })=0A =0A+=0A+/* The _NCS variant allows non-constant syscall =
numbers.  */=0A+#undef INTERNAL_SYSCALL_NCS=0A+#define INTERNAL_SYSCALL_N=
CS(name, err, nr, args...) 			\=0A+({									\=0A+	long __sys_res;						=
	\=0A+	{								\=0A+		register unsigned long __res asm("r28");		\=0A+		L=
OAD_ARGS_##nr(args)					\=0A+		/* FIXME: HACK save/load r19 around syscal=
l */		\=0A+		asm volatile(						\=0A+			SAVE_ASM_PIC					\=0A+			"	ble	0x=
100(%%sr2, %%r0)\n"		\=0A+			"	copy	%1, %%r20\n"			\=0A+			LOAD_ASM_PIC		=
			\=0A+			: "=3Dr" (__res)					\=0A+			: "r" (name) ASM_ARGS_##nr			\=0A=
+			: "memory", CALL_CLOB_REGS CLOB_ARGS_##nr	\=0A+		);							\=0A+		__sy=
s_res =3D (long)__res;				\=0A+	}								\=0A+	__sys_res;							\=0A+ })=0A=
+=0A #define LOAD_ARGS_0()=0A #define LOAD_ARGS_1(r26)						\=0A-  regist=
er unsigned long __r26 __asm__("r26") =3D (unsigned long)(r26);	\=0A-  LO=
AD_ARGS_0()=0A+	register unsigned long __r26 __asm__("r26") =3D (unsigned=
 long)(r26); \=0A+	LOAD_ARGS_0()=0A #define LOAD_ARGS_2(r26,r25)						\=0A=
-  register unsigned long __r25 __asm__("r25") =3D (unsigned long)(r25);	=
\=0A-  LOAD_ARGS_1(r26)=0A+	register unsigned long __r25 __asm__("r25") =3D=
 (unsigned long)(r25); \=0A+	LOAD_ARGS_1(r26)=0A #define LOAD_ARGS_3(r26,=
r25,r24)					\=0A-  register unsigned long __r24 __asm__("r24") =3D (unsi=
gned long)(r24);	\=0A-  LOAD_ARGS_2(r26,r25)=0A+	register unsigned long _=
_r24 __asm__("r24") =3D (unsigned long)(r24); \=0A+	LOAD_ARGS_2(r26,r25)=0A=
 #define LOAD_ARGS_4(r26,r25,r24,r23)					\=0A-  register unsigned long _=
_r23 __asm__("r23") =3D (unsigned long)(r23);	\=0A-  LOAD_ARGS_3(r26,r25,=
r24)=0A+	register unsigned long __r23 __asm__("r23") =3D (unsigned long)(=
r23); \=0A+	LOAD_ARGS_3(r26,r25,r24)=0A #define LOAD_ARGS_5(r26,r25,r24,r=
23,r22)				\=0A-  register unsigned long __r22 __asm__("r22") =3D (unsign=
ed long)(r22);	\=0A-  LOAD_ARGS_4(r26,r25,r24,r23)=0A-#define LOAD_ARGS_6=
(r26,r25,r24,r23,r22,r21)				\=0A-  register unsigned long __r21 __asm__(=
"r21") =3D (unsigned long)(r21);	\=0A-  LOAD_ARGS_5(r26,r25,r24,r23,r22)=0A=
+	register unsigned long __r22 __asm__("r22") =3D (unsigned long)(r22); \=
=0A+	LOAD_ARGS_4(r26,r25,r24,r23)=0A+#define LOAD_ARGS_6(r26,r25,r24,r23,=
r22,r21)				 \=0A+	register unsigned long __r21 __asm__("r21") =3D (unsig=
ned long)(r21); \=0A+	LOAD_ARGS_5(r26,r25,r24,r23,r22)=0A =0A /* Even wit=
h zero args we use r20 for the syscall number */=0A #define ASM_ARGS_0=0A=

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--- glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone.S.orig	2006-04-15 15:1=
1:23.000000000 +0200=0A+++ glibc-2.3.6/sysdeps/unix/sysv/linux/hppa/clone=
.S	2006-04-15 15:13:02.000000000 +0200=0A@@ -26,74 +26,121 @@=0A #define =
_ERRNO_H	1=0A #include <bits/errno.h>=0A =0A-/* int clone(int (*fn)(void =
*arg), void *child_stack, int flags, void *arg) */=0A+/* Non-thread code =
calls __clone with the following parameters:=0A+   int clone(int (*fn)(vo=
id *arg), void *child_stack, int flags, void *arg)=0A+   =0A+   NPTL Code=
 will call __clone with the following parameters:=0A+   int clone(int (*f=
n)(void *arg), void *child_stack, int flags, void *arg,=0A+	     int *par=
ent_tidptr, struct user_desc *newtls, int *child_pidptr)=0A+	=0A+   The c=
ode should not mangle the extra input registers.=0A+   Syscall expects:		=
		Input to __clone:=0A+	r26 - clone flags.			(arg2)=0A+	r25 - user stack =
pointer.		(arg1)=0A+	r24 - parent tid pointer.		(stack - 52)=0A+	r23 - st=
ruct user_desc newtls pointer.	(stack - 56)=0A+	r22 - child tid pointer.	=
	(stack - 60)=0A+	r20 - clone syscall number		(constant)=0A+ */=0A =0A   =
      .text=0A ENTRY(__clone)=0A-	/* FIXME: I have no idea how profiling =
works on hppa. */=0A+    /* this ENTRY() macro do: stw rp, -20(sp)=0A+   =
    and "FIXME: I have no idea how profiling works on hppa." */=0A =0A 	/=
* Sanity check arguments.  */=0A-	comib,=3D  0,%arg0,.Lerror        /* no=
 NULL function pointers */=0A-	ldi     -EINVAL,%ret0=0A-	comib,=3D  0,%ar=
g1,.Lerror        /* no NULL stack pointers */=0A-	nop=0A-=0A+	comib,=3D	=
	0, %arg0, .Larg_error		/* no NULL function pointers */=0A+	nop						/* d=
elay slot */=0A+	comib,<>,n	0, %arg1, .Lno_arg_error	/* no NULL stack poi=
nters */=0A+	nop						/* delay slot */=0A+=0A+.Larg_error:=0A+	/* Create =
a stack frame */=0A+	ldo             64(%sp), %sp=0A+	/* Set errno (in th=
e delay slot) */=0A+	bl		__syscall_error, %rp=0A+	ldi		EINVAL, %arg0=0A+=0A=
+	/* Return after setting errno */=0A+	/* Restore rp from ENTRY() */=0A+	=
ldw		-84(%sp), %rp=0A+	bv		%r0(%rp)=0A+	ldo             -64(%sp), %sp=0A+=
	=0A+.Lno_arg_error:=0A 	/* Save the fn ptr and arg on the new stack.  */=
=0A-	stwm    %arg0,64(%arg1)=0A-	stw	%arg3,-60(%arg1)=0A+	stwm		%arg0, 64=
(%arg1)=0A+	stw		%arg3, -60(%arg1)=0A+	/* Clone arguments are (int flags,=
 void * child_stack) */=0A+	copy		%arg2, %arg0		/* flags are first */=0A+=
	/* User stack pointer is in the correct register already */=0A+=0A+	/* L=
oad args from stack... */=0A+	ldw		-52(%sp), %arg2		/* Load parent_tidptr=
 */=0A+	ldw		-56(%sp), %arg3		/* Load newtls */=0A+	ldw		-60(%sp), %r22		=
/* Load child_tidptr */=0A+=0A+	/* Create frame for function */=0A+	copy	=
	%sp, %r21=0A+	stwm		%r3, 64(%sp)=0A+	stw		%r21, -4(%sp)=0A =0A-	/* Save =
the PIC register. */=0A-#ifdef PIC=0A-	stw	%r19,-32(%sr0, %sp)	/* parent =
*/=0A-#endif=0A+	SAVE_PIC (TREG)=0A =0A 	/* Do the system call */=0A-	cop=
y	%arg2,%arg0=0A-	ble     0x100(%sr2,%r0)=0A-	ldi	__NR_clone,%r20=0A-=0A-=
	ldi	-4096,%r1=0A-	comclr,>>=3D %r1,%ret0,%r0	/* Note: unsigned compare. =
*/=0A-	b,n	.Lerror=0A+	ble		0x100(%sr2, %r0)=0A+	ldi		SYS_ify (clone), %r=
20=0A+=0A+	ldi		NO_ERROR, %r1=0A+	comclr,>>=3D	%r1, %ret0, %r0		/* Note: =
unsigned compare. */=0A+	ldi		1, %r20=0A+	comib,=3D,n	1, %r20, .Lerror=0A=
+	nop			/* to avoid next br insn in the delay slot? */=0A =0A-	comib,=3D,=
n 0,%ret0,thread_start=0A+	comib,=3D,n	0, %ret0, thread_start=0A+	nop			/=
* to avoid next br insn in the delay slot? */=0A =0A 	/* Successful retur=
n from the parent=0A 	   No need to restore the PIC register, =0A 	   sin=
ce we return immediately. */=0A-=0A-	bv	%r0(%rp)=0A-	nop=0A+	bv		%r0(%rp)=
=0A+	ldwm		-64(%sp), %r3=0A =0A 	/* Something bad happened -- no child cr=
eated */=0A .Lerror:=0A =0A-	/* Restore the PIC register on error */=0A-#=
ifdef PIC=0A-	ldw	-32(%sr0, %sp), %r19	/* parent */=0A-#endif=0A+	LOAD_PI=
C (TREG)=0A =0A-	b	__syscall_error=0A-	sub     %r0,%ret0,%arg0=0A+	/* Use=
 TREG for temp storage */=0A+	copy		%ret0, TREG=0A+	/* Set errno (in the =
delay slot) */=0A+	bl		__syscall_error, %rp=0A+	sub		%r0, %ret0, %arg0=0A=
+	copy		TREG, %ret0=0A+	/* Return after setting errno */=0A+	/* Restore r=
p from ENTRY() */=0A+	ldw		-84(%sp), %rp=0A+	bv		%r0(%rp)=0A+	ldwm		-64(%=
sp), %r3=0A =0A thread_start:=0A =0A 	/* Load up the arguments.  */=0A-	l=
dw	-60(%sr0, %sp),%arg0=0A-	ldw     -64(%sr0, %sp),%r22=0A+	ldw		-60(%sr0=
, %sp), %arg0=0A+	ldw		-64(%sr0, %sp), %r22=0A =0A 	/* $$dyncall fixes ch=
ilds PIC register */=0A =0A 	/* Call the user's function */=0A-	bl	$$dync=
all,%r31=0A-	copy	%r31,%rp=0A+	bl		$$dyncall, %r31=0A+	copy		%r31, %rp=0A=
 =0A-	bl	_exit,%rp=0A-	copy	%ret0,%arg0=0A+	bl		_exit, %rp=0A+	copy		%ret=
0, %arg0=0A =0A 	/* Die horribly.  */=0A-	iitlbp	%r0,(%sr0,%r0)=0A+	iitlb=
p		%r0, (%sr0, %r0)=0A =0A PSEUDO_END(__clone)=0A =0A-weak_alias(__clone,=
 clone)=0A+weak_alias (__clone, clone)=0A
--_=__=_XaM3_.1145434181.2A.846775.42.7669.52.42.007.991917301
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From - Thu Nov 08 21:36:51 2018
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X-Mozilla-Keys:                                                                                 
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From: Steven Rostedt <rostedt@goodmis.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [RFC PATCH 00/09] robust VM per_cpu variables
Date: Wed, 17 May 2006 05:54:39 -0400 (EDT)
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Cc: Andrew Morton <akpm@osdl.org>,
 linux-mips@linux-mips.org,
 David Mosberger-Tang <davidm@hpl.hp.com>,
 linux-ia64@vger.kernel.org,
 Martin Mares <mj@atrey.karlin.mff.cuni.cz>,
 spyro@f2s.com,
 Joe Taylor <joe@tensilica.com>,
 linuxppc-dev@ozlabs.org,
 Paul Mackerras <paulus@samba.org>,
 benedict.gaster@superh.com,
 sam@ravnborg.org,
 bjornw@axis.com,
 kenneth.w.chen@intel.com,
 Ingo Molnar <mingo@elte.hu>,
 kiran@scalex86.org,
 clameter@sgi.com,
 Nick Piggin <nickpiggin@yahoo.com.au>,
 arnd@arndb.de,
 Rusty Russell <rusty@rustcorp.com.au>,
 starvik@axis.com,
 Linus Torvalds <torvalds@osdl.org>,
 Thomas Gleixner <tglx@linutronix.de>,
 rth@twiddle.net,
 Chris Zankel <chris@zankel.net>,
 tony.luck@intel.com,
 Andi Kleen <ak@suse.de>,
 ralf@linux-mips.org,
 Marc Gauthier <marc@tensilica.com>,
 lethal@linux-sh.org,
 schwidefsky@de.ibm.com,
 linux390@de.ibm.com,
 davem@davemloft.net,
 pari
To: LKML <linux-kernel@vger.kernel.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:25288

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(I tried to include all arch maintianers and memory maintainers, if I
missed someone, please let me know).


OK, as promised, I've got a working VM percpu solution.

A little history: please read the thread http://lkml.org/lkml/2006/4/14/137

Preivously I noticed that the per_cpu variables were implemented with
a little hack that Rusty Russell wrote up.  I call it a hack because,
for modules an arbitrary number was used to hold all per_cpu variables
that would be used in the kernel or in modules.  If this number was too
big, you waste the memory that is allocated for it, and if it were
too small, you wont be able to load all the modules that are required.

My first attempt to fix this introduced another dereference, to allow
for modules to allocate their own memory.  This was quickly shot down,
and for good reason, because dereferences kill performance, and don't
play nice with large SMP systems that depend on per_cpu being fast.

But that first attempt had one benefit.  It had good responses on how
to actually fix the problem.  Without the first try, I would not have
tried this approach.

So what is this solution?

I now place the per_cpu variables into VM, such that the pages are
only allocated when needed. All the architecture needs to do is
supply a VM address range, size for each CPU to use (note this
implementation expects all the VM CPU areas to be together), and
three functions to allow for allocating page tables at bootup.

The bootup page table allocations are needed because the percpu
variables are used before the system initializes the memory. So
bootmem is needed to load the page tables.

But that's it!  No more hacks for architectures with lots of CPUS and
NUMA to implement their own percpu algorithms.  They just supply the
functions to allocate the variables, and the memory will be loaded
appropriately.  So all architectures with VM can use the generic
solution.  Does the main-line kernel support any architectures that
doesn't have a VM?

Another benefit is that this approach removes the one redirection that
was already used in the generic solution.  Since the virtual memory
of the architecture for the per_cpu is static, the calculation to
find the variable is done with constants.  So this is another win
for this solution.

So the three things that this patch gives us are:

1) Robust per_cpu.  No more guessing the size of the per_cpu variable
   sections.  Default VM is 1 Meg per cpu.  If you use more than that
   I guess you're SOL.

2) Generic solution for all architectures.  No more fancy hacks to
   get the per cpu offest.

3) Removes the inderection of the current per_cpu generic solution.

The set of patches that I have implement this for the i386 architecture
and lays out the ground work for others.  The i386 implementation I did
was mainly a hack.  Nick Piggin suggested that before I do too much
work, I should post my stuff and ask for comments.  That's what I'm doing
now.

This patch set works for my laptop (P4 HT) and I haven't tested
it with any other configuration.  The implementation that I did for
i386 was only to get it to work and is not flexible.  It needs much
better implementation, and I ask for help with that.

I basically concentrated to the core stuff.  Another nice thing about
this patch set is that it needs both CONFIG_HAS_VM_PERCPU and
__ARCH_HAS_VM_PERCPU to take advantage of the VM percpu implementation.
Without these set, it defaults to the old usage.  This way we
can slowly implement each architecture, in an incremental fashion.

OK, let'er rip. Flame me, yell at me, curse me, but please give me
feedback.

Thanks for your time.

-- Steve

PS. The attached module was used to test this patch on my laptop.


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From: Steven Rostedt <rostedt@goodmis.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [RFC PATCH 01/09] robust VM per_cpu core
Date: Wed, 17 May 2006 05:56:00 -0400 (EDT)
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NNTP-Posting-Date: Sat, 22 Nov 2014 02:49:53 +0000 (UTC)
Cc: Andrew Morton <akpm@osdl.org>,
 linux-mips@linux-mips.org,
 David Mosberger-Tang <davidm@hpl.hp.com>,
 linux-ia64@vger.kernel.org,
 Martin Mares <mj@atrey.karlin.mff.cuni.cz>,
 spyro@f2s.com,
 Joe Taylor <joe@tensilica.com>,
 linuxppc-dev@ozlabs.org,
 Paul Mackerras <paulus@samba.org>,
 benedict.gaster@superh.com,
 sam@ravnborg.org,
 bjornw@axis.com,
 kenneth.w.chen@intel.com,
 Ingo Molnar <mingo@elte.hu>,
 kiran@scalex86.org,
 clameter@sgi.com,
 Nick Piggin <nickpiggin@yahoo.com.au>,
 arnd@arndb.de,
 Rusty Russell <rusty@rustcorp.com.au>,
 starvik@axis.com,
 Linus Torvalds <torvalds@osdl.org>,
 Thomas Gleixner <tglx@linutronix.de>,
 rth@twiddle.net,
 Chris Zankel <chris@zankel.net>,
 tony.luck@intel.com,
 Andi Kleen <ak@suse.de>,
 ralf@linux-mips.org,
 Marc Gauthier <marc@tensilica.com>,
 lethal@linux-sh.org,
 schwidefsky@de.ibm.com,
 linux390@de.ibm.com,
 davem@davemloft.net,
 pari
To: LKML <linux-kernel@vger.kernel.org>
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This is the VM per_cpu core patch.  It includes the mm/per_cpu.c file
that is used to initialize and update per_cpu variables at startup
and module load.

To use this, the arch must define CONFIG_HAS_VM_PERCPU and
__ARCH_HAS_VM_PERCPU.

Also the following must be defined:

PERCPU_START - start of the percpu VM area
PERCPU_SIZE - size of the percpu VM area for each CPU so that the
		total size would be PERCPU_SIZE * NR_CPUS

As well as the following three functions:

pud_t *pud_boot_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long addr,
                     int cpu);
pmd_t *pmd_boot_alloc(struct mm_struct *mm, pud_t *pud, unsigned long addr,
                     int cpu);
pte_t *pte_boot_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long addr,
                     int cpu);

The above functions are to allocate page tables from bootmem because the
percpu is initialized right after setup_arch in init/main.c

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

Index: linux-2.6.16-test/mm/percpu.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.16-test/mm/percpu.c	2006-05-17 04:39:52.000000000 -0400
@@ -0,0 +1,287 @@
+/*
+ *  linux/mm/percpu.c
+ *
+ *  Copyright (C) 2006 Steven Rostedt <rostedt@goodmis.org>
+ *
+ *  Some of this code was influenced by mm/vmalloc.c
+ *
+ *  The percpu variables need to always have the same offset from one CPU to
+ *  the next no matter if the percpu variable is defined in the kernel or
+ *  inside a module.  So to guarentee that the offset is the same for both,
+ *  they are mapped into virtual memory.
+ *
+ *  Since the percpu variables are used before memory is initialized, the
+ *  inital setup must be done with bootmem, and thus vmalloc code can not be
+ *  used.
+ *
+ *  Credits:
+ *  -------
+ *   This goes to lots of people that inspired me on LKML, and responded to
+ *   my first (horrible) implementation of robust per_cpu variables.
+ *
+ *   Also many thanks to Rusty Russell in his generic per_cpu implementation.
+ */
+
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/highmem.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+
+#include <linux/bootmem.h>
+
+#include <asm/uaccess.h>
+#include <asm/tlbflush.h>
+
+static int __init percpu_boot_alloc(unsigned long addr, unsigned long size,
+				    int node);
+
+/*
+ * percpu_allocated keeps track of the actual allocated memory. It
+ * always points to the page after the last page in VM that was allocated.
+ *
+ * Yes this is also a per_cpu variable :)
+ * It gets updated after the copys are made.
+ */
+static DEFINE_PER_CPU(unsigned long, percpu_allocated);
+
+static char * __init per_cpu_allocate_init(unsigned long size, int cpu)
+{
+	unsigned long addr;
+
+	addr = PERCPU_START+(cpu*PERCPU_SIZE);
+	BUG_ON(percpu_boot_alloc(addr, size, cpu));
+
+	return (char*)addr;
+
+}
+
+/**
+ *	setup_per_cpu_areas  - initialization of VM per_cpu variables
+ *
+ *	Allocate pages in VM for the per_cpu variables
+ *	of the kernel.
+ */
+void __init setup_per_cpu_areas(void)
+{
+	unsigned long size, i;
+	char *ptr;
+
+	/* Copy section for each CPU (we discard the original) */
+	size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);
+
+	for (i = 0; i < NR_CPUS; i++, ptr += size) {
+		ptr = per_cpu_allocate_init(size, i);
+		memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);
+		wmb();
+		per_cpu(percpu_allocated, i) =
+			PAGE_ALIGN((unsigned long)ptr + size);
+	}
+}
+
+static __init int percpu_boot_pte_alloc(pmd_t *pmd, unsigned long addr,
+					  unsigned long end, int node)
+{
+	pte_t *pte;
+
+	pte = pte_boot_alloc(&init_mm, pmd, addr, node);
+	if (!pte)
+		return -ENOMEM;
+	do {
+		void *page;
+		WARN_ON(!pte_none(*pte));
+		page = alloc_bootmem_pages(PAGE_SIZE);
+		if (!page)
+			return -ENOMEM;
+		set_pte_at(&init_mm, addr, pte, mk_pte(virt_to_page(page),
+						       PAGE_KERNEL));
+	} while (pte++, addr += PAGE_SIZE, addr < end);
+	return 0;
+}
+
+static __init int percpu_boot_pmd_alloc(pud_t *pud, unsigned long addr,
+					unsigned long end, int node)
+{
+	pmd_t *pmd;
+	unsigned long next;
+
+	pmd = pmd_boot_alloc(&init_mm, pud, addr, node);
+	if (!pud)
+		return -ENOMEM;
+	do {
+		next = pmd_addr_end(addr, end);
+		if (percpu_boot_pte_alloc(pmd, addr, next, node))
+			return -ENOMEM;
+	} while (pmd++, addr = next, addr < end);
+	return 0;
+}
+
+static __init int percpu_boot_pud_alloc(pgd_t *pgd, unsigned long addr,
+					unsigned long end, int node)
+{
+	pud_t *pud;
+	unsigned long next;
+
+	pud = pud_boot_alloc(&init_mm, pgd, addr, node);
+	if (!pud)
+		return -ENOMEM;
+	do {
+		next = pud_addr_end(addr, end);
+		if (percpu_boot_pmd_alloc(pud, addr, next, node))
+			return -ENOMEM;
+	} while (pud++, addr = next, addr < end);
+	return 0;
+}
+
+static int __init percpu_boot_alloc(unsigned long addr, unsigned long size,
+				    int node)
+{
+	pgd_t *pgd;
+	unsigned long end = addr + size;
+	unsigned long next;
+	int err;
+
+	pgd = pgd_offset_k(addr);
+	do {
+		next = pgd_addr_end(addr, end);
+		err = percpu_boot_pud_alloc(pgd, addr, next, node);
+		if (err)
+			break;
+	} while (pgd++, addr = next, addr < end);
+	return err;
+}
+
+static __init int percpu_pte_alloc(pmd_t *pmd, unsigned long addr,
+				   unsigned long end, int node)
+{
+	pte_t *pte;
+
+	pte = pte_alloc_kernel(pmd, addr);
+	if (!pte)
+		return -ENOMEM;
+	do {
+		void *page;
+		if (unlikely(!pte_none(*pte))) {
+			printk("bad pte: %p->%p\n", pte, (void*)pte_val(*pte));
+			BUG();
+			return -EFAULT;
+		}
+		page = (void*)__get_free_page(GFP_KERNEL);
+		if (!page)
+			return -ENOMEM;
+		set_pte_at(&init_mm, addr, pte, mk_pte(virt_to_page(page),
+						       PAGE_KERNEL));
+	} while (pte++, addr += PAGE_SIZE, addr < end);
+	__flush_tlb();
+	return 0;
+}
+
+static __init int percpu_pmd_alloc(pud_t *pud, unsigned long addr,
+				   unsigned long end, int node)
+{
+	pmd_t *pmd;
+	unsigned long next;
+
+	pmd = pmd_alloc(&init_mm, pud, addr);
+	if (!pmd)
+		return -ENOMEM;
+	do {
+		next = pmd_addr_end(addr, end);
+		if (percpu_pte_alloc(pmd, addr, next, node))
+			return -ENOMEM;
+	} while (pmd++, addr = next, addr < end);
+	return 0;
+}
+
+static __init int percpu_pud_alloc(pgd_t *pgd, unsigned long addr,
+				   unsigned long end, int node)
+{
+	pud_t *pud;
+	unsigned long next;
+
+	pud = pud_alloc(&init_mm, pgd, addr);
+	if (!pud)
+		return -ENOMEM;
+	do {
+		next = pud_addr_end(addr, end);
+		if (percpu_pmd_alloc(pud, addr, next, node))
+			return -ENOMEM;
+	} while (pud++, addr = next, addr < end);
+	return 0;
+}
+
+static int percpu_alloc(unsigned long addr, unsigned long size,
+			int node)
+{
+	pgd_t *pgd;
+	unsigned long end = addr + size;
+	unsigned long next;
+	int err;
+
+	pgd = pgd_offset_k(addr);
+	do {
+		next = pgd_addr_end(addr, end);
+		err = percpu_pud_alloc(pgd, addr, next, node);
+		if (err)
+			break;
+	} while (pgd++, addr = next, addr < end);
+	return err;
+}
+
+static int percpu_module_update(void *pcpudst, unsigned long size, int cpu)
+{
+	int err = 0;
+	/*
+	 * These two local variables are only used to keep the code
+	 * looking simpler.  Since this function is only called on
+	 * module load, it's not time critical.
+	 */
+	unsigned long needed_address = (unsigned long)
+		((pcpudst) + __PERCPU_OFFSET_ADDRESS(cpu)+size);
+	unsigned long allocated = per_cpu(percpu_allocated, cpu);
+
+	if (allocated < needed_address) {
+		unsigned long alloc = needed_address - allocated;
+		err = percpu_alloc(allocated, alloc, cpu);
+		if (!err)
+			per_cpu(percpu_allocated, cpu) =
+				PAGE_ALIGN(needed_address);
+	}
+	return err;
+}
+
+/**
+ *	per_cpu_modcopy  -  copy and allocate module VM per_cpu variables
+ *
+ *	@pcpudst:	Destination of module per_cpu section
+ *	@src:		Source of module per_cpu data section
+ *	@size:		Size of module per_cpu data section
+ *
+ *	Copy the module's data per_cpu section into each VM per_cpu section
+ *	stored in the kernel.  If need be, allocate more pages in VM
+ *	if they are not yet allocated.
+ *
+ *	protected by module_mutex
+ */
+int percpu_modcopy(void *pcpudst, void *src, unsigned long size)
+{
+	unsigned int i;
+	int err = 0;
+
+	for (i = 0; i < NR_CPUS; i++)
+		if (cpu_possible(i)) {
+			err = percpu_module_update(pcpudst, size, i);
+			if (err)
+				break;
+			memcpy((pcpudst)+__PERCPU_OFFSET_ADDRESS(i),
+			       (src), (size));
+		}
+	return err;
+}
+
+/*
+ * We use the __per_cpu_start for the indexing of
+ * per_cpu variables, even in modules.
+ */
+EXPORT_SYMBOL(__per_cpu_start);
Index: linux-2.6.16-test/mm/Makefile
===================================================================
--- linux-2.6.16-test.orig/mm/Makefile	2006-05-17 04:32:27.000000000 -0400
+++ linux-2.6.16-test/mm/Makefile	2006-05-17 04:39:52.000000000 -0400
@@ -22,3 +22,4 @@ obj-$(CONFIG_SLOB) += slob.o
 obj-$(CONFIG_SLAB) += slab.o
 obj-$(CONFIG_MEMORY_HOTPLUG) += memory_hotplug.o
 obj-$(CONFIG_FS_XIP) += filemap_xip.o
+obj-$(CONFIG_HAS_VM_PERCPU) += percpu.o
\ No newline at end of file

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From - Thu Nov 08 21:36:51 2018
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Xref: news.gmane.org gmane.linux.ports.parisc:25290

Hello,

After a last relocation, my HP D370 fails to boot. In the lcd-display it 
cycles trough a number of messages starting with "FLT...". Has anyone 
resources on the messages and the cause of the faults? It so happens 
that I have some spare parts (partly from a long gone D210) and I like 
to know what to replace or fix to get the D370 going once again.

Thanks in advance


C.Beerse.

btw: this message has been crosposted to both the parisc-linux and the 
hpux admin since it is about stuff before the os boots.


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Xref: news.gmane.org gmane.linux.ports.parisc:25291

Hi,

I've had a stab at porting QEMU to PA-RISC... I've uploaded a patch
against QEMU 0.8.1 to:

  http://homepage.ntlworld.com/wholehog/stuart/qemu/qemu-hppa-guest.diff

It compiles, but I can't figure out why it's crashing.  Any ideas?

Cheers,
-- 
Stuart Brady
_______________________________________________
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Xref: news.gmane.org gmane.linux.ports.parisc:25292

On 6/4/06, Stuart Brady <sdbrady@ntlworld.com> wrote:
> Hi,
>
> I've had a stab at porting QEMU to PA-RISC... I've uploaded a patch
> against QEMU 0.8.1 to:
>
>   http://homepage.ntlworld.com/wholehog/stuart/qemu/qemu-hppa-guest.diff
>
> It compiles, but I can't figure out why it's crashing.  Any ideas?

That's awesome to hear that you are working on QEMU for PARISC!
It would rock to have a fast simulator. Even a semi-hosted environment
would be a cool toy to play with.

Does QEMU crash?
Does the emulated userspace crash?

A couple of comments about your patch:

1. Remember 32-bit PARISC executables have both function pointers and
function descriptors.

2. The "gp" is r19, the "dp" is r27. I don't know what your reference
to the "__dlt" is?

3. You can copy testandset from glibc linuxthreads pthread.h

4. flush_icache_range can probably be copied from the kernel implementation.

Other than that, there are *all* sorts of things which could be wrong :)

Cheers,
Carlos.
_______________________________________________
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On Sun, Jun 04, 2006 at 05:48:17PM -0400, Carlos O'Donell wrote:
> On 6/4/06, Stuart Brady <sdbrady@ntlworld.com> wrote:
> >I've had a stab at porting QEMU to PA-RISC... I've uploaded a patch
> >against QEMU 0.8.1 to:
> >
> >  http://homepage.ntlworld.com/wholehog/stuart/qemu/qemu-hppa-guest.diff
> >
> >It compiles, but I can't figure out why it's crashing.  Any ideas?
> 
> That's awesome to hear that you are working on QEMU for PARISC!
> It would rock to have a fast simulator. Even a semi-hosted environment
> would be a cool toy to play with.

It would be nice.  But I'm not sure if I _can_ finish this. :(

> Does QEMU crash?
> Does the emulated userspace crash?

QEMU crashes.  So far, I've only tried system emulation, not userspace
emulation.

An illegal instruction is being executed, and this appears to be for the
very first instruction that is emulated.  I get the following:

Program received signal SIGILL, Illegal instruction.
[Switching to Thread 16384 (LWP 6905)]
0x00b30f40 in stdout ()
(gdb)

bt makes gdb hang! :(  Unfortunately, my gdb-fu is pretty weak.

> A couple of comments about your patch:
> 
> 1. Remember 32-bit PARISC executables have both function pointers and
> function descriptors.

Ow.  I really have no idea about how this works.

> 2. The "gp" is r19, the "dp" is r27. I don't know what your reference
> to the "__dlt" is?

I don't know, either.  I was mainly guessing, based on what I saw in the
PA ELF supplement.  After changing it to use r19, gcc warns that r19 is
call-clobbered, but I don't know whether that's relevant.  I see the
same behaviour as before, though...

> 3. You can copy testandset from glibc linuxthreads pthread.h

Okay, I will do.  (I don't think this is the immediate problem, though.)

> 4. flush_icache_range can probably be copied from the kernel implementation.

Probably.  Much of QEMU is LGPLed, though... but I can certainly try
using the kernel implementation.

> Other than that, there are *all* sorts of things which could be wrong :)

Hmm... and they probably *are* wrong, too! :)

Thanks,
-- 
Stuart Brady
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On Sun, Jun 04, 2006 at 05:48:17PM -0400, Carlos O'Donell wrote:
> 4. flush_icache_range can probably be copied from the kernel implementation.

Why are we still talking about doing flush_icache_range() in userspace?
Why does qemu not use mprotect() to set either PROT_EXEC or PROT_WRITE
(and never both at the same time)?  The kernel will flush userspace
appopriately (and if it doesn't, that's a bug).
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On 6/4/06, Matthew Wilcox <matthew@wil.cx> wrote:
> On Sun, Jun 04, 2006 at 05:48:17PM -0400, Carlos O'Donell wrote:
> > 4. flush_icache_range can probably be copied from the kernel implementation.
>
> Why are we still talking about doing flush_icache_range() in userspace?
> Why does qemu not use mprotect() to set either PROT_EXEC or PROT_WRITE
> (and never both at the same time)?  The kernel will flush userspace
> appopriately (and if it doesn't, that's a bug).
>

Blame QEMU for letting you override the default implementation!
It's always tempting to see if you can do it faster in userspace?

Cheers,
Carlos.
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Joel Soete wrote:

>
>
> Corne Beerse wrote:
>
>> Hello,
>>
>> After a last relocation, my HP D370 fails to boot. In the lcd-display 
>> it cycles trough a number of messages starting with "FLT...". Has 
>> anyone resources on the messages and the cause of the faults? It so 
>> happens that I have some spare parts (partly from a long gone D210) 
>> and I like to know what to replace or fix to get the D370 going once 
>> again.
>>
>> Thanks in advance
>>
>>
>> C.Beerse.
>>
>> btw: this message has been crosposted to both the parisc-linux and 
>> the hpux admin since it is about stuff before the os boots.
>>
> mmm, how are you sure of this?
> Can't you grab more info about console messages and post them too?
> Which os was runing before relocation (and I suppose continue to run)?
>
> Do you have access to the hp diagnostics' cd (iirc it was called 
> Support +) to make some basic hw test?
>
> Hth,
>     Joel
>
Well, the problem with the system is that id does not boot at all: it 
just cycles "flt...." numbers on the lcd, it does not come to the point 
where it spits messages to the console. About the os before the crash, 
I'm not sure anymore, I have disk packs for both linux and hp-ux and 
change them frequently just to test and check stuff. I do know it has 
the latest firmware installed since ages so that should not be the problem.

At this point, the only think I can do is remove all hardware that is 
not needed to boot and see what happens. Then restore items one by one 
and see which one is the faulty one.

 From an other answer, I got the message "flt..." is for 'floating point 
unit' hence I might even need to exchange CPUs...


CBee
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OK, I think we're all set with git.

http://git.parisc-linux.org/?p=linux-2.6.git;a=summary shows what's in
our tree.

See (and send patches for improving ;-)
http://www.parisc-linux.org/faq/git.html

I'll probably pull the other three repositories out of the way soon.

It'd be nice if someone could convert the autobuilder to work on this
instead of CVS.

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Subject: [parisc-linux] stack-protect in conflict with CROSS_COMPILE
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Hi Sam,

We've stumbled on a problem with -fno-stack-protector and CROSS_COMPILE:

CFLAGS          := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
                   -fno-strict-aliasing -fno-common
# Force gcc to behave correct even for buggy distributions
CFLAGS          += $(call cc-option, -fno-stack-protector)

round about line 310 of Makefile will cause CC to be called before we
get a chance to set CROSS_COMPILE in arch/parisc/Makefile.  For people
who are compiling 64-bit parisc kernels, this means the wrong gcc gets
called, and sometimes the compiler versions are out of sync.

We will have similar problems with:

CFLAGS          += -fno-omit-frame-pointer $(call cc-option,-fno-optimize-sibling-calls,)

Should we include the arch Makefile earlier in the proceedings?
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From: Adrian Bunk <bunk@stusta.de>
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Subject: [parisc-linux] [2.6 patch] parisc: "extern inline" -> "static
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Xref: news.gmane.org gmane.linux.ports.parisc:25299

"extern inline" generates a warning with -Wmissing-prototypes and I'm 
currently working on getting the kernel cleaned up for adding this to 
the CFLAGS since it will help us to avoid a nasty class of runtime 
errors.

If there are places that really need a forced inline, __always_inline 
would be the correct solution.

Signed-off-by: Adrian Bunk <bunk@stusta.de>

---

 arch/parisc/lib/memcpy.c       |    4 +--
 include/asm-parisc/io.h        |    2 -
 include/asm-parisc/pci.h       |    2 -
 include/asm-parisc/pgtable.h   |   40 ++++++++++++++++-----------------
 include/asm-parisc/prefetch.h  |    4 +--
 include/asm-parisc/semaphore.h |   10 ++++----
 include/asm-parisc/tlbflush.h  |    3 --
 7 files changed, 32 insertions(+), 33 deletions(-)

--- linux-2.6.14-rc5-mm1-full/arch/parisc/lib/memcpy.c.old	2005-10-30 01:58:43.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/arch/parisc/lib/memcpy.c	2005-10-30 01:59:11.000000000 +0200
@@ -158,12 +158,12 @@
 #define stw(_s,_t,_o,_a,_e) 	def_store_insn(stw,"r",_s,_t,_o,_a,_e)
 
 #ifdef  CONFIG_PREFETCH
-extern inline void prefetch_src(const void *addr)
+static inline void prefetch_src(const void *addr)
 {
 	__asm__("ldw 0(" s_space ",%0), %%r0" : : "r" (addr));
 }
 
-extern inline void prefetch_dst(const void *addr)
+static inline void prefetch_dst(const void *addr)
 {
 	__asm__("ldd 0(" d_space ",%0), %%r0" : : "r" (addr));
 }
--- linux-2.6.14-rc5-mm1-full/include/asm-parisc/pci.h.old	2005-10-30 01:59:57.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/include/asm-parisc/pci.h	2005-10-30 02:00:01.000000000 +0200
@@ -193,7 +193,7 @@
 extern void pcibios_register_hba(struct pci_hba_data *);
 extern void pcibios_set_master(struct pci_dev *);
 #else
-extern inline void pcibios_register_hba(struct pci_hba_data *x)
+static inline void pcibios_register_hba(struct pci_hba_data *x)
 {
 }
 #endif
--- linux-2.6.14-rc5-mm1-full/include/asm-parisc/pgtable.h.old	2005-10-30 02:00:14.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/include/asm-parisc/pgtable.h	2005-10-30 02:00:18.000000000 +0200
@@ -316,31 +316,31 @@
  * setup: the pgd is never bad, and a pmd always exists (as it's folded
  * into the pgd entry)
  */
-extern inline int pgd_none(pgd_t pgd)		{ return 0; }
-extern inline int pgd_bad(pgd_t pgd)		{ return 0; }
-extern inline int pgd_present(pgd_t pgd)	{ return 1; }
-extern inline void pgd_clear(pgd_t * pgdp)	{ }
+static inline int pgd_none(pgd_t pgd)		{ return 0; }
+static inline int pgd_bad(pgd_t pgd)		{ return 0; }
+static inline int pgd_present(pgd_t pgd)	{ return 1; }
+static inline void pgd_clear(pgd_t * pgdp)	{ }
 #endif
 
 /*
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
  */
-extern inline int pte_read(pte_t pte)		{ return pte_val(pte) & _PAGE_READ; }
-extern inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
-extern inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
-extern inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_WRITE; }
-extern inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
-extern inline int pte_user(pte_t pte) 		{ return pte_val(pte) & _PAGE_USER; }
-
-extern inline pte_t pte_rdprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_READ; return pte; }
-extern inline pte_t pte_mkclean(pte_t pte)	{ pte_val(pte) &= ~_PAGE_DIRTY; return pte; }
-extern inline pte_t pte_mkold(pte_t pte)	{ pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }
-extern inline pte_t pte_wrprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_WRITE; return pte; }
-extern inline pte_t pte_mkread(pte_t pte)	{ pte_val(pte) |= _PAGE_READ; return pte; }
-extern inline pte_t pte_mkdirty(pte_t pte)	{ pte_val(pte) |= _PAGE_DIRTY; return pte; }
-extern inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
-extern inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) |= _PAGE_WRITE; return pte; }
+static inline int pte_read(pte_t pte)		{ return pte_val(pte) & _PAGE_READ; }
+static inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
+static inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
+static inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_WRITE; }
+static inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
+static inline int pte_user(pte_t pte) 		{ return pte_val(pte) & _PAGE_USER; }
+
+static inline pte_t pte_rdprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_READ; return pte; }
+static inline pte_t pte_mkclean(pte_t pte)	{ pte_val(pte) &= ~_PAGE_DIRTY; return pte; }
+static inline pte_t pte_mkold(pte_t pte)	{ pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }
+static inline pte_t pte_wrprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_WRITE; return pte; }
+static inline pte_t pte_mkread(pte_t pte)	{ pte_val(pte) |= _PAGE_READ; return pte; }
+static inline pte_t pte_mkdirty(pte_t pte)	{ pte_val(pte) |= _PAGE_DIRTY; return pte; }
+static inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
+static inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) |= _PAGE_WRITE; return pte; }
 
 /*
  * Conversion functions: convert a page and protection to a page entry,
@@ -368,7 +368,7 @@
 #define mk_pte_phys(physpage, pgprot) \
 ({ pte_t __pte; pte_val(__pte) = physpage + pgprot_val(pgprot); __pte; })
 
-extern inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 { pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot); return pte; }
 
 /* Permanent address of a page.  On parisc we don't have highmem. */
--- linux-2.6.14-rc5-mm1-full/include/asm-parisc/semaphore.h.old	2005-10-30 02:00:45.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/include/asm-parisc/semaphore.h	2005-10-30 02:00:51.000000000 +0200
@@ -58,7 +58,7 @@
 #define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
 #define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name,0)
 
-extern inline void sema_init (struct semaphore *sem, int val)
+static inline void sema_init (struct semaphore *sem, int val)
 {
 	*sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val);
 }
@@ -86,7 +86,7 @@
  * interrupts while we're messing with the semaphore.  Sorry.
  */
 
-extern __inline__ void down(struct semaphore * sem)
+static inline void down(struct semaphore * sem)
 {
 	might_sleep();
 	spin_lock_irq(&sem->sentry);
@@ -98,7 +98,7 @@
 	spin_unlock_irq(&sem->sentry);
 }
 
-extern __inline__ int down_interruptible(struct semaphore * sem)
+static inline int down_interruptible(struct semaphore * sem)
 {
 	int ret = 0;
 	might_sleep();
@@ -116,7 +116,7 @@
  * down_trylock returns 0 on success, 1 if we failed to get the lock.
  * May not sleep, but must preserve irq state
  */
-extern __inline__ int down_trylock(struct semaphore * sem)
+static inline int down_trylock(struct semaphore * sem)
 {
 	int flags, count;
 
@@ -132,7 +132,7 @@
  * Note! This is subtle. We jump to wake people up only if
  * the semaphore was negative (== somebody was waiting on it).
  */
-extern __inline__ void up(struct semaphore * sem)
+static inline void up(struct semaphore * sem)
 {
 	int flags;
 	spin_lock_irqsave(&sem->sentry, flags);
--- linux-2.6.14-rc5-mm1-full/include/asm-parisc/tlbflush.h.old	2005-10-30 02:01:00.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/include/asm-parisc/tlbflush.h	2005-10-30 02:01:06.000000000 +0200
@@ -42,7 +42,7 @@
 #endif
 }
 
-extern __inline__ void flush_tlb_pgtables(struct mm_struct *mm, unsigned long start, unsigned long end)
+static inline void flush_tlb_pgtables(struct mm_struct *mm, unsigned long start, unsigned long end)
 {
 }
  

-
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the body of a message to majordomo@vger.kernel.org
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--- linux-2.6.18-rc4-mm1/include/asm-parisc/io.h.old	2006-08-13 23:08:01.000000000 +0200
+++ linux-2.6.18-rc4-mm1/include/asm-parisc/io.h	2006-08-13 23:08:15.000000000 +0200
@@ -128,7 +128,7 @@
 /* Most machines react poorly to I/O-space being cacheable... Instead let's
  * define ioremap() in terms of ioremap_nocache().
  */
-extern inline void __iomem * ioremap(unsigned long offset, unsigned long size)
+static inline void __iomem * ioremap(unsigned long offset, unsigned long size)
 {
 	return __ioremap(offset, size, _PAGE_NO_CACHE);
 }
--- linux-2.6.18-rc4-mm1/include/asm-parisc/prefetch.h.old	2006-08-13 23:08:25.000000000 +0200
+++ linux-2.6.18-rc4-mm1/include/asm-parisc/prefetch.h	2006-08-13 23:08:34.000000000 +0200
@@ -19,7 +19,7 @@
 #ifdef CONFIG_PREFETCH
 
 #define ARCH_HAS_PREFETCH
-extern inline void prefetch(const void *addr)
+static inline void prefetch(const void *addr)
 {
 	__asm__("ldw 0(%0), %%r0" : : "r" (addr));
 }
@@ -27,7 +27,7 @@
 /* LDD is a PA2.0 addition. */
 #ifdef CONFIG_PA20
 #define ARCH_HAS_PREFETCHW
-extern inline void prefetchw(const void *addr)
+static inline void prefetchw(const void *addr)
 {
 	__asm__("ldd 0(%0), %%r0" : : "r" (addr));
 }
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Subject: [parisc-linux] [2.6 patch] arch/parisc/Makefile: remove GCC_VERSION
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This patch removes the usage of GCC_VERSION from arch/parisc/Makefile.

There are no functional changes, it simply makes it a bit shorter (and 
removes the last instance of GCC_VERSION in the kernel).

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>

---

This patch was already sent on:
- 12 Jan 2006

--- linux-2.6.15-mm3-hppa/arch/parisc/Makefile.old	2006-01-12 03:11:45.000000000 +0100
+++ linux-2.6.15-mm3-hppa/arch/parisc/Makefile	2006-01-12 03:12:35.000000000 +0100
@@ -35,12 +35,8 @@
 
 OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
 
-GCC_VERSION     := $(call cc-version)
-ifneq ($(shell if [ -z $(GCC_VERSION) ] ; then echo "bad"; fi ;),)
-$(error Sorry, couldn't find ($(cc-version)).)
-endif
-ifneq ($(shell if [ $(GCC_VERSION) -lt 0303 ] ; then echo "bad"; fi ;),)
-$(error Sorry, your compiler is too old ($(GCC_VERSION)).  GCC v3.3 or above is required.)
+ifneq ($(shell if [ $(call cc-version) -lt 0303 ] ; then echo "bad"; fi ;),)
+$(error Sorry, your compiler is too old.  GCC v3.3 or above is required.)
 endif
 
 cflags-y	:= -pipe

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Subject: Re: [parisc-linux] [BUG] 2.6.17.11 kernel build failed on 715/64
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On Sat, Aug 26, 2006 at 10:02:56AM +0000, Joel Soete wrote:
> Joerg Roedel wrote:
> >Hello,
> >
> >I just tried to build the 2.6.17.11 Linux kernel on my 715/64 HPPA
> >workstation.
> just to be sure, I would better advise you grab parisc-linux cvs 
> (<http://cvs.parisc-linux.org/download/linux-2.6/linux-2.6.17-pa6.tar.bz2>)

Joerg,
Joel is correct that one cannot quite yet build a parisc-linux
tree from kernel.org sources.

While the CVS tree is not stale, it's also no longer used for developement.
Developement has moved to git.parisc-linux.org.
See www.parisc-linux.org/faq/git.html for access.

cheers,
grant
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[ CCing parisc-linux ]

  Matthias

Petr Ovtchenkov writes:
> On Wednesday 30 August 2006 00:18, you wrote:
> > Hi Petr,
> > 
> > 
> > compiling the library with USE_STATIC_LIBGCC=1 leads to other error messages:
> > 
> > obj/gcc/shared/test_main.o: In function `main':
> > ../../../test/unit/cppunit/test_main.cpp:138: undefined reference to
> > `_Unwind_Resume'
> > obj/gcc/shared/test_main.o: In function `~Reporter':
> > ../../../test/unit/cppunit/cppunit_mini.h:31: undefined reference to
> > `_Unwind_Resume'
> > ../../../test/unit/cppunit/cppunit_mini.h:31: undefined reference to
> > `_Unwind_Resume'
> > obj/gcc/shared/accum_test.o: In function `~TestFixture':
> > ../../../test/unit/cppunit/cppunit_mini.h:41: undefined reference to
> > `_Unwind_Resume'
> > obj/gcc/shared/accum_test.o: In function
> > `stlpmtx_std::__node_alloc<false, 0>::deallocate(void*, unsigned
> > int)':
> > ../../../stlport/stl/_alloc.h:311: undefined reference to `_Unwind_Resume'
> > obj/gcc/shared/accum_test.o:../../../test/unit/accum_test.cpp:42: more
> > undefined references to `_Unwind_Resume' follow
> > 
> > Do you have an idea, what is wrong?
> 
> During modern gcc build process, depends on --enable-shared/--disable-shared options
> it produces following libs:
> 
> 1. --enable-shared: 
>    a) link with shared
>       libgcc_s.so --- runtime gcc support
>       libsupc++.a --- C++ language support
>    b) link with static
>       libgcc.a    --- runtime gcc support
>       libgcc_eh.a --- C++ exceptions support, if you use static libgcc
>       libsupc++.a --- C++ language support
> 
> 2. --disable-shared:
>       libgcc.a    --- runtime gcc support, C++ exceptions support
>       libsupc++.a --- C++ language support
> 
> But on some platform (I treat it as bug in gcc build) not all support
> functions present in correct place. Looks like this is you case.
> 
> See gmake/lib/gcc.mak and gmake/app/gcc.mak for link sequence and my
> comments. Note, that when we build libstlport*, we import whole
> libsupc++.a, so no needs to mention libsupc++.a when link application
> with libstlport*.
> 
>   - ptr
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Subject: Re: [parisc-linux] Re: build failure of stlport 5.0.2 on hppa
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> > > compiling the library with USE_STATIC_LIBGCC=1 leads to other error messages:
> > > 
> > > obj/gcc/shared/test_main.o: In function `main':
> > > ../../../test/unit/cppunit/test_main.cpp:138: undefined reference to
> > > `_Unwind_Resume'

You need to look at how test_main.o is being linked (e.g., add -v, -Wl,-v,
or -Wl,-debug to the compilation/link command.  There's not enough info
to determine whether this is a GCC or package bug. 

> > 2. --disable-shared:
> >       libgcc.a    --- runtime gcc support, C++ exceptions support
> >       libsupc++.a --- C++ language support
> > 
> > But on some platform (I treat it as bug in gcc build) not all support
> > functions present in correct place. Looks like this is you case.

If not all support functions are present in this case, please file a
GCC PR.  It's highly unlikely this is PA specific.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: Re: [parisc-linux] Re: build failure of stlport 5.0.2 on hppa
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------=_Part_70633_4369338.1157058322684
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Hi John,

On 8/31/06, John David Anglin <dave@hiauly1.hia.nrc.ca> wrote:
> You need to look at how test_main.o is being linked (e.g., add -v, -Wl,-v,
> or -Wl,-debug to the compilation/link command.  There's not enough info
> to determine whether this is a GCC or package bug.

after adding the suggested arguments (as LDFLAGS=...) the library does
not link any more. I am attaching the build log.


Regards,
Torsten

-- 
http://www.twerner42.de/

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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] Latest palinux crash -- VM problem?
Date: Sat, 2 Sep 2006 23:00:52 -0600
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Xref: news.gmane.org gmane.linux.ports.parisc:25305


We hit an HPMC earlier this evening running 2.6.18-rc5-pa1 on palinux.
Here's my analysis (I'll attach the raw data to the end).

The MCA dump fingers this culprit:

IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000010198ba4

The offset lands in sys_mprotect().  Specifically, it's the call to
flush_tlb_range() in the (inlined) change_protection() function:

    10198ba4:   04 e0 52 00     pdtlb r0(sr1,r7)
    10198ba8:   37 9c 00 02     ldo 1(ret0),ret0
    10198bac:   bf 85 3f e5     cmpb,*<> r5,ret0,10198ba4 <sys_mprotect+0x7fc>
    10198bb0:   34 e7 20 00     ldo 1000(r7),r7

At this point, there are two reasonable hypotheses:

1. Bad hardware
2. Bad software

The memory error log indicates an uncorrectable error, unfortuantely I
don't understand it enough to decode what it's saying.

Could it be a different manifestation of the same problem that bites
PA8800?  That is, do we have the same address mapped twice and we're
upsetting Astro by writing back cachelines that are supposed to be on
the other CPU?

I should probably try to find Astro docs at some point so I can find out
how much it cares about this kind of thing.


The HPMC log:

Service Menu: Enter command > pim 0 hpmc

FIRMWARE INFORMATION

   Firmware Version:          41.10


PROCESSOR PIM INFORMATION


-----------------  Processor 0 HPMC Information - PDC Version: 41.10  ------ 

Timestamp =    Sun Sep  3 03:06:18 GMT 2006    (20:06:09:03:03:06:18)

HPMC Chassis Codes 

       Chassis Code        Extension 
       ------------        --------- 
       0x0000082000ff6242  0x0000000000000000
       0x1800082011006312  0xcb81000000000000
       0x0000087000ff6292  0x000000f0f0000000
       0x6000082070006062  0x0000000000000010
       0x7000082070006082  0x0000000000392400
       0x7000082379006133  0xc1bff0fffed08040
       0x0000080080006310  0x0000000000000001
       0x000008008000631f  0x0000000000000000
       0x0000082000ff6452  0x0000000000000000
       0x0000082000ff6402  0x0000000000000000
       0x0000080080006300  0x0000000000000001
       0x7000082382006343  0x0000000000070200
       0x7000082382026343  0x0000000000070200
       0x7000082382046343  0x0000000000070200
       0x7000082382066343  0x0000000000070200
       0x0000080089006200  0x0000000000000000
       0x0000080086006200  0x0000000000000000
       0x000008008000630f  0x0000000000000000
       

General Registers 0 - 31
00-03  0000000000000000  00000000105b60c0  0000000010198af0  000000009fe7ce58
04-07  00000000105a78c0  00000000000000d3  0000000040c00000  0000000040bd7000
08-11  0000000040caa000  0000000040caa000  0000000040caa000  00000000d0c9881c
12-15  0000000000000070  0000000040ca9fff  0000000040ca9fff  0000000000000b00
16-19  00000000000e1e00  00000000d0c9a004  00000000a096c3c0  0000000010000000
20-23  00000000facc8b40  0000000000000000  0000000000000000  0000000000000040
24-27  000000009fe7ce98  0000000040caa000  0000000010478000  00000000105a78c0
28-31  0000000000000001  0000000015fa0270  0000000015fa02b0  0000000000000000


Control Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000000000000  0000000000000000  0000000000000000  0000000000000000
08-11  000000000000db78  0000000000000000  00000000000000c0  0000000000000038
12-15  0000000000000000  0000000000000000  0000000000103000  ffc0000000000000
16-19  000011f2605064fd  0000000000000000  0000000010198bb0  0000000034e72000
20-23  0000000010240001  000000001e078000  000000ff080cef0f  8000000000000000
24-27  0000000000511000  00000000c0c9a000  0000000000041020  5555555555555555
28-31  000000f0f015e700  5555555555555555  0000000015fa0000  0000000010568000

Space Registers 0 - 7
00-03  036de000          036de000          00000000          036de000
04-07  00000000          00000000          00000000          00000000


IIA Space (back entry)       = 0x0000000000000000
IIA Offset (back entry)      = 0x0000000010198ba4
Check Type                   = 0x20000000
CPU State                    = 0x9e000004
Cache Check                  = 0x00000000
TLB Check                    = 0x00000000
Bus Check                    = 0x0010c03b
Assists Check                = 0x00000000
Assist State                 = 0x00000000
Path Info                    = 0x00000000
System Responder Address     = 0x0000000000000000
System Requestor Address     = 0xfffffffffffa0000


Floating Point Registers 0 - 31
00-03  0000000000000000  0000000000000000  0000000000000000  0000000000000000
04-07  0000000010d48098  0000000010000000  0000080300000000  000000004fae8ac0
08-11  0000000000000000  00000000105a78c0  ffffffffffffff9c  0000000000000000
12-15  c06f020000000802  403cf49114843c00  40000e7014843c10  00000000105a78c0
16-19  0000000000000000  0000000000000001  00000000105b48c0  0000000010603000
20-23  0000000010453d80  00000000105487f0  0000000000000244  00000244a8b90fc5
24-27  0000000100000000  00000000105b70c0  00000000105a78c0  0000000000000802
28-31  0000000010143a08  00000000104f32c0  0000000017c841c0  0000000014844108


Check Summary                = 0xcb81000000000000
Available Memory             = 0x0000000100000000
CPU Diagnose Register 2      = 0x0301000000802004
CPU Status Register 0        = 0x2440c20000000000
CPU Status Register 1        = 0x8000200000000000
SADD LOG                     = 0x141ffcffffffffff
Read Short LOG               = 0xc10080fff800a014


--------------  Memory Error Log Information  --------------

Bus 0 Log Information

Timestamp =    Sun Sep  3 03:06:18 GMT 2006    (20:06:09:03:03:06:18)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
          X     ERR_ERROR       X            X           

Bus Requestor Address      = 0xfffffffffffa0000
Bus Target Address         = 0x0000000000000000
Bus Responder Address      = 0xfffffffffed00000

Error Status Reg           = 0x0000000000000010
Runway Control Reg         = 0x0000021c00001418
Runway Address Reg         = 0xc1bff0fffed08040
Runway Data High Reg       = 0xe840c000083c025c
Runway Data Low Reg        = 0xe840c000083c025c
Memory Address Reg         = 0x000001ff3fffffff
Memory Address Corr Reg    = 0x000001ff3fffffff
Memory Syndrome Reg        = 0x0000000000000000
Memory Syndrome Corr Reg   = 0x0000000000000000



 Address/Control Parity Error Registers  

   Address/Control Parity Error Bit (mem_addr_par_stat) Not Set 



------------  I/O Module Error Log Information  ------------

Summary of IO subsystem log entries
-----------------------------------
                        Phys Loc             Vendor  Device   Severity
Description             (hex)                 Id      Id      CORR UNC FE  CW
-----------             -----                ------  ------   ----------------
System Bus Adapter RP  0x000000ffff04ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000000ffff01ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000000ffff02ff83   0x103c  0x1051              X
System Bus Adapter RP  0x000000ffff03ff83   0x103c  0x1051              X


Detail display of IO subsystem log entries
------------------------------------------

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Sun Sep  3 03:06:19 GMT 2006    (20:06:09:03:03:06:19)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff04ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Sun Sep  3 03:06:19 GMT 2006    (20:06:09:03:03:06:19)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff01ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Sun Sep  3 03:06:19 GMT 2006    (20:06:09:03:03:06:19)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff02ff83

System Bus Adapter --       Rope Interface
------------------------------------------

Timestamp =    Sun Sep  3 03:06:19 GMT 2006    (20:06:09:03:03:06:19)

  OV  RQ  RS      ESTAT      A  C  D  corr  unc  fe  cw  pf
  --  --  --      -----      -  -  -  ----  ---  --  --  --
               ERR_FUNCTION                      X       

IO Requestor Address    = 0x0000000000000000
IO Target Address       = 0x0000000000000000
IO Responder Address    = 0x0000000000000000
IO Physical Location    = 0x000000ffffffff82
IO Hardware Path        = 0x00ffffffffffff00

Module Error Register   = 0x0000000000000000
Rope Physical Location  = 0x000000ffff03ff83


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From - Thu Nov 08 21:36:53 2018
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Subject: Re: [parisc-linux] Latest palinux crash -- VM problem?
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On Sat, Sep 02, 2006 at 11:00:52PM -0600, Matthew Wilcox wrote:
> The memory error log indicates an uncorrectable error, unfortuantely I
> don't understand it enough to decode what it's saying.
> 
> Could it be a different manifestation of the same problem that bites
> PA8800?  That is, do we have the same address mapped twice and we're
> upsetting Astro by writing back cachelines that are supposed to be on
> the other CPU?
> 
> I should probably try to find Astro docs at some point so I can find out
> how much it cares about this kind of thing.

OK, got the Astro docs.  

> Error Status Reg           = 0x0000000000000010

This bit says that Astro observed a BROAD_ERROR transaction on the
Runway bus.  ie Astro didn't cause the error, it only noticed it and
went fatal in response.  It looks like CPU 0 sent the broadcast error,
so I need to try to figure out what made CPU 0 go funny.
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Subject: Re: Re: [parisc-linux] Latest palinux crash -- VM problem?
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Please also review this report I posted a while ago:

http://www.pateam.org/archive/dumps/palinuxcrash20060827.txt

It looks much to me like a hardware problem. See in particular the
reported chassis log and the I/O Module Errors at the end of the dump.

HTH

T-Bone

On 9/3/06, Matthew Wilcox <matthew@wil.cx> wrote:
> On Sat, Sep 02, 2006 at 11:00:52PM -0600, Matthew Wilcox wrote:
> > The memory error log indicates an uncorrectable error, unfortuantely I
> > don't understand it enough to decode what it's saying.
> >
> > Could it be a different manifestation of the same problem that bites
> > PA8800?  That is, do we have the same address mapped twice and we're
> > upsetting Astro by writing back cachelines that are supposed to be on
> > the other CPU?
> >
> > I should probably try to find Astro docs at some point so I can find out
> > how much it cares about this kind of thing.
>
> OK, got the Astro docs.
>
> > Error Status Reg           = 0x0000000000000010
>
> This bit says that Astro observed a BROAD_ERROR transaction on the
> Runway bus.  ie Astro didn't cause the error, it only noticed it and
> went fatal in response.  It looks like CPU 0 sent the broadcast error,
> so I need to try to figure out what made CPU 0 go funny.
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>


-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Subject: [parisc-linux] [PATCH] Fix conflict with the is_init identifier on
	parisc
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Xref: news.gmane.org gmane.linux.ports.parisc:25308

Matthew Wilcox <matthew@wil.cx> writes:

> On Mon, Sep 04, 2006 at 01:41:30PM +0200, Adrian Bunk wrote:
>> pidspace-is_init.patch causes the following compile error on parisc:
>> 
>> <--  snip  -->
>> 
>> ...
>>   CC      arch/parisc/kernel/module.o
>>
> /home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/arch/parisc/kernel/module.c:76:
> error: conflicting types for 'is_init'
>> /home/bunk/linux/kernel-2.6/linux-2.6.18-rc5-mm1/include/linux/sched.h:1090:
> error: previous definition of 'is_init' was here
>> make[2]: *** [arch/parisc/kernel/module.o] Error 1
>> 
>> <--  snip  -->
>
> Looks like ia64 calls the same function in_init().  I'm tempted to
> change parisc to have the same name.

How does the following patch look?
Since I don't have a parisc compiler so I haven't compile tested it.
But it is a simple substitute and replace and I can't see any problems
by inspection so it should work.

----

This appears to be the only usage of is_init in the kernel
besides the usage in sched.h.   On ia64 the same function is
called in_init.    So to remove the conflict and make the kernel
more consistent rename is_init is_core is_local and is_local_section
to in_init in_core in_local and in_local_section respectively.

Thanks to Adrian Bunk who spotted this, and to Matthew Wilcox
who suggested this fix.

Singed-off-by: Eric Biederman <ebiederm@xmission.com>
---
 arch/parisc/kernel/module.c |   32 ++++++++++++++++----------------
 1 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index aee3118..f50b982 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -27,7 +27,7 @@
  *    - SEGREL32 handling
  *      We are not doing SEGREL32 handling correctly. According to the ABI, we
  *      should do a value offset, like this:
- *			if (is_init(me, (void *)val))
+ *			if (in_init(me, (void *)val))
  *				val -= (uint32_t)me->module_init;
  *			else
  *				val -= (uint32_t)me->module_core;
@@ -72,27 +72,27 @@ #define MAX_GOTS	1023
 
 /* three functions to determine where in the module core
  * or init pieces the location is */
-static inline int is_init(struct module *me, void *loc)
+static inline int in_init(struct module *me, void *loc)
 {
 	return (loc >= me->module_init &&
 		loc <= (me->module_init + me->init_size));
 }
 
-static inline int is_core(struct module *me, void *loc)
+static inline int in_core(struct module *me, void *loc)
 {
 	return (loc >= me->module_core &&
 		loc <= (me->module_core + me->core_size));
 }
 
-static inline int is_local(struct module *me, void *loc)
+static inline int in_local(struct module *me, void *loc)
 {
-	return is_init(me, loc) || is_core(me, loc);
+	return in_init(me, loc) || in_core(me, loc);
 }
 
-static inline int is_local_section(struct module *me, void *loc, void *dot)
+static inline int in_local_section(struct module *me, void *loc, void *dot)
 {
-	return (is_init(me, loc) && is_init(me, dot)) ||
-		(is_core(me, loc) && is_core(me, dot));
+	return (in_init(me, loc) && in_init(me, dot)) ||
+		(in_core(me, loc) && in_core(me, dot));
 }
 
 
@@ -566,14 +566,14 @@ #endif
 			break;
 		case R_PARISC_PCREL17F:
 			/* 17-bit PC relative address */
-			val = get_stub(me, val, addend, ELF_STUB_GOT, is_init(me, loc));
+			val = get_stub(me, val, addend, ELF_STUB_GOT, in_init(me, loc));
 			val = (val - dot - 8)/4;
 			CHECK_RELOC(val, 17)
 			*loc = (*loc & ~0x1f1ffd) | reassemble_17(val);
 			break;
 		case R_PARISC_PCREL22F:
 			/* 22-bit PC relative address; only defined for pa20 */
-			val = get_stub(me, val, addend, ELF_STUB_GOT, is_init(me, loc));
+			val = get_stub(me, val, addend, ELF_STUB_GOT, in_init(me, loc));
 			DEBUGP("STUB FOR %s loc %lx+%lx at %lx\n", 
 			       strtab + sym->st_name, (unsigned long)loc, addend, 
 			       val)
@@ -670,9 +670,9 @@ #endif
 			       strtab + sym->st_name,
 			       loc, val);
 			/* can we reach it locally? */
-			if(!is_local_section(me, (void *)val, (void *)dot)) {
+			if(!in_local_section(me, (void *)val, (void *)dot)) {
 
-				if (is_local(me, (void *)val))
+				if (in_local(me, (void *)val))
 					/* this is the case where the
 					 * symbol is local to the
 					 * module, but in a different
@@ -680,14 +680,14 @@ #endif
 					 * in case it's more than 22
 					 * bits away */
 					val = get_stub(me, val, addend, ELF_STUB_DIRECT,
-						       is_init(me, loc));
+						       in_init(me, loc));
 				else if (strncmp(strtab + sym->st_name, "$$", 2)
 				    == 0)
 					val = get_stub(me, val, addend, ELF_STUB_MILLI,
-						       is_init(me, loc));
+						       in_init(me, loc));
 				else
 					val = get_stub(me, val, addend, ELF_STUB_GOT,
-						       is_init(me, loc));
+						       in_init(me, loc));
 			}
 			DEBUGP("STUB FOR %s loc %lx, val %lx+%lx at %lx\n", 
 			       strtab + sym->st_name, loc, sym->st_value,
@@ -720,7 +720,7 @@ #endif
 			break;
 		case R_PARISC_FPTR64:
 			/* 64-bit function address */
-			if(is_local(me, (void *)(val + addend))) {
+			if(in_local(me, (void *)(val + addend))) {
 				*loc64 = get_fdesc(me, val+addend);
 				DEBUGP("FDESC for %s at %p points to %lx\n",
 				       strtab + sym->st_name, *loc64,
-- 
1.4.2.rc3.g7e18e-dirty

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Subject: [parisc-linux] On keeping history clean
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So you've done some work on the parisc git tree, you've been committing
stuff as you go, and now it's time to merge back.  Unfortunately, other
people have also been working on the tree, and so your history is full
of merges that you'd like to get rid of.  Here's how to do it.

I have a pretty simple situation here; I did a couple of commits, then I
pulled the recent 2.6.18-rc6 merge.

So what would I push?

$ git-log origin..master
commit 59c4c2b0510ff0b8acd904c0cbc52a7cba788baf
Merge: 302eeed... df0e7cd...
Author: Matthew Wilcox <matthew@wil.cx>
Date:   Tue Sep 12 05:21:19 2006 -0600

    Merge branch 'master' of /var/git/linux-2.6

commit 302eeedbcb19477ebaee30fe934f4b82cb44fbba
Author: Matthew Wilcox <matthew@wil.cx>
Date:   Tue Sep 12 05:19:15 2006 -0600

    Remove some obsolete comments and I checked that Reo is similar to Ike.

commit 7f51f71822a4019136d3297ba5b50ff9fca8e9f3
Author: Matthew Wilcox <matthew@wil.cx>
Date:   Tue Sep 12 05:17:59 2006 -0600

    Hardware found in the rp8400

The merge commit has to be eliminated.  So create a new branch:

$ git-branch merge origin
$ git-checkout merge
$ git-cherry-pick -e 7f51f71822a4019136d3297ba5b50ff9fca8e9f3
$ git-cherry-pick -e 302eeedbcb19477ebaee30fe934f4b82cb44fbba

I use the -e so I can get rid of the message appended by cherry-pick.

Now let's pretend the original branch never happened.

$ git-branch -D master
$ git-checkout -b master
$ git-branch -d merge

And finally, push to palinux.

$ git-push

Voila, no more merge commits.  I'm sure someone with more git expertise
can tell me a better way of doing this ... but it works.
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Subject: [parisc-linux] Zen and the Art of Merge Maintenance
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Xref: news.gmane.org gmane.linux.ports.parisc:25310

Ok, this is how I've been doing merges on palinux.

(Using palinux only to minimize the amount of uploading I have to do
 when I push the tree)

## first, update the `linus' branch on palinux

$ git fetch \
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git \
 master:linus

## then push the branch back, and any new tags

$ git push origin linus:linus
$ git push --tags origin

## make sure the tree is clean

$ git checkout -f

## then do the merge from a tag

$ git pull origin refs/tags/v2.6.18-rc6:master

## look at, and fix up conflicts

$ vi Makefile

## edit the merge message to remove the conflicts section

$ git commit -a

## tag the merge

$ git tag -a v2.6.18-rc6-pa0

## push

$ git push origin
$ git push --tags origin

## and we're done
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Subject: [parisc-linux] [PATCH] Fix 'make headers_check' for PARISC in 2.6.18
Date: Thu, 14 Sep 2006 11:47:54 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:25311

Running 'make headers_check' with the 2.6.18-rc7 kernel gives this error
on parisc:

  CHECK   include/asm/page.h
/tmp/khdr-parisc/include/asm/page.h requires asm-generic/memory_model.h,
which does not exist in exported headers

Fix attached. Please apply and forward to Linus before 2.6.18, if you
want parisc to be working in the linux-libc-headers which get released
based on the 2.6.18 exported headers. Having an empty asm/page.h is fine
-- it's one of the headers which is probably going to disappear entirely
in future. But for now, having it break the compile if it does happen to
be included is a bad thing.

The patch also removes some gratuitous and probably incorrect noise
within #ifndef __KERNEL__, and corrects a some comments. 

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h
index 0695bc9..cb90065 100644
--- a/include/asm-parisc/page.h
+++ b/include/asm-parisc/page.h
@@ -1,22 +1,14 @@
 #ifndef _PARISC_PAGE_H
 #define _PARISC_PAGE_H
 
-#if !defined(__KERNEL__)
-/* this is for userspace applications (4k page size) */
-# define PAGE_SHIFT	12	/* 4k */
-# define PAGE_SIZE	(1UL << PAGE_SHIFT)
-# define PAGE_MASK	(~(PAGE_SIZE-1))
-#endif
-
-
 #ifdef __KERNEL__
 
 #if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
-# define PAGE_SHIFT	12	/* 4k */
+# define PAGE_SHIFT	12	/* 4KiB */
 #elif defined(CONFIG_PARISC_PAGE_SIZE_16KB)
-# define PAGE_SHIFT	14	/* 16k */
+# define PAGE_SHIFT	14	/* 16KiB */
 #elif defined(CONFIG_PARISC_PAGE_SIZE_64KB)
-# define PAGE_SHIFT	16	/* 64k */
+# define PAGE_SHIFT	16	/* 64KiB */
 #else
 # error "unknown default kernel page size"
 #endif
@@ -188,9 +180,8 @@ #define virt_to_page(kaddr)     pfn_to_p
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
-#endif /* __KERNEL__ */

From - Thu Nov 08 21:36:53 2018
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Subject: [parisc-linux] Anyone maintaining Mux?
Date: Wed, 20 Sep 2006 20:51:29 -0600
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Ryan's listed as the MODULE_AUTHOR for Mux, but I haven't seen anything
from him since he changed jobs.

I recently did an allmodconfig build and I'm looking at the missing
symbols.  A modular Mux looks for:

WARNING: "pdc_iodc_putc" [drivers/serial/mux.ko] undefined!

That's funny (mostly in the sense of odd, with a tinge of amusing)
because mux is supposed to be an output driver ... why's it calling pdc
to write bytes for it?

Turns out, that's in mux_console_write() -- ie only used if
CONFIG_SERIAL_MUX_CONSOLE is set.  It's an exact duplicate of the code
in pdc_cons.c.

We have five options that I see for solving this:

1. Make CONFIG_SERIAL_MUX a bool.  No more mux-as-module.

2. Make CONFIG_SERIAL_MUX_CONSOLE only available if CONFIG_SERIAL_MUX is y.

3. Export pdc_iodc_putc.  What's one more symbol between friends?

4. Delete CONFIG_SERIAL_MUX_CONSOLE and make pdc console work right.

5. Rewrite the Mux console to actually use the mux rather than PDC.

I'd like somebody else to be enthusiastic enough to do #5, but I'm
concerned that we don't really have a maintainer for this code right
now, and nobody's going to have time/inclination to do it.

BTW, owning this hardware is not required to work on this driver -- we
have a K-class with remote power in the Fort Collins test-ring.
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Subject: [parisc-linux] Current allmodconfig failures
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$ grep undefined make.err 
WARNING: "flush_data_cache" [drivers/video/console/sticore.ko] undefined!
WARNING: "sti_set" [drivers/video/console/sticon.ko] undefined!
WARNING: "sti_putc" [drivers/video/console/sticon.ko] undefined!
WARNING: "sti_bmove" [drivers/video/console/sticon.ko] undefined!
WARNING: "sti_clear" [drivers/video/console/sticon.ko] undefined!
WARNING: "dummy_con" [drivers/video/console/sticon.ko] undefined!
WARNING: "conswitchp" [drivers/video/console/sticon.ko] undefined!
WARNING: "pdc_iodc_putc" [drivers/serial/mux.ko] undefined!
WARNING: "isa_bus_to_virt" [drivers/net/ni52.ko] undefined!

I suspect the flush_data_cache() is a relic from the olden days -- I
think the flush_icache_range() call should be sufficient.

The pdc_iodc_putc() call I mentioned in a missive yesterday.

isa_bus_to_virt() is an interesting one.  We don't currently have
virtual mappings for the ISA bus.  This driver needs to be converted to
use ioremap().  I'm tempted to mark it !PARISC in Kconfig.  Or rather,
mark it ARM || MIPS || X86 since those are the only architectures which
implement isa_bus_to_virt.

STI scares me.  I don't understand why we need the dummy console.  I
don't know if it makes any sense to build your console as a module.  I
don't know why sticore is in the console directory.

I fixed all the other allmodconfig problems I found ;-)
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Subject: Re: [parisc-linux] [PATCH] ioremap balanced with iounmap for
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Cc: kernel Janitors <kernel-janitors@lists.osdl.org>,
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On Thu, Sep 28, 2006 at 08:58:15AM -0400, Kyle McMartin wrote:
> On Thu, Sep 28, 2006 at 11:23:34AM +0530, Amol Lad wrote:
> > ioremap must be balanced by an iounmap and failing to do so can result
> > in a memory leak.
> > 
> 
> Looks ok. Will merge.

Actually, it shows some areas we need to do better.  It's an
improvement, but look at, eg, the error returns from elroy.
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On Thu, Sep 28, 2006 at 07:14:52AM -0600, Matthew Wilcox wrote:
> Actually, it shows some areas we need to do better.  It's an
> improvement, but look at, eg, the error returns from elroy.
> 

Agreed.
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ioremap must be balanced by an iounmap and failing to do so can result
in a memory leak.

Tested (compilation only) to make sure the files are compiling without
any warning/error due to new changes

Signed-off-by: Amol Lad <amol@verismonetworks.com>
---
 dino.c    |    4 +++-
 eisa.c    |    1 +
 iosapic.c |    1 +
 lba_pci.c |    7 ++++++-
 4 files changed, 11 insertions(+), 2 deletions(-)
---
diff -uprN -X linux-2.6.18-orig/Documentation/dontdiff linux-2.6.18-orig/drivers/parisc/dino.c linux-2.6.18/drivers/parisc/dino.c
--- linux-2.6.18-orig/drivers/parisc/dino.c	2006-09-21 10:15:38.000000000 +0530
+++ linux-2.6.18/drivers/parisc/dino.c	2006-09-28 10:14:07.000000000 +0530
@@ -1007,8 +1007,10 @@ static int __init dino_probe(struct pari
 		dino_bridge_init(dino_dev, name);
 	}
 
-	if (dino_common_init(dev, dino_dev, name))
+	if (dino_common_init(dev, dino_dev, name)) {
+		iounmap(dino_dev->hba.base_addr);
 		return 1;
+	}
 
 	dev->dev.platform_data = dino_dev;
 
diff -uprN -X linux-2.6.18-orig/Documentation/dontdiff linux-2.6.18-orig/drivers/parisc/eisa.c linux-2.6.18/drivers/parisc/eisa.c
--- linux-2.6.18-orig/drivers/parisc/eisa.c	2006-09-21 10:15:38.000000000 +0530
+++ linux-2.6.18/drivers/parisc/eisa.c	2006-09-28 10:14:49.000000000 +0530
@@ -381,6 +381,7 @@ static int __devinit eisa_probe(struct p
 		eisa_dev.root.dma_mask = 0xffffffff; /* wild guess */
 		if (eisa_root_register (&eisa_dev.root)) {
 			printk(KERN_ERR "EISA: Failed to register EISA root\n");
+			iounmap(eisa_eeprom_addr);
 			return -1;
 		}
 	}
diff -uprN -X linux-2.6.18-orig/Documentation/dontdiff linux-2.6.18-orig/drivers/parisc/iosapic.c linux-2.6.18/drivers/parisc/iosapic.c
--- linux-2.6.18-orig/drivers/parisc/iosapic.c	2006-09-21 10:15:38.000000000 +0530
+++ linux-2.6.18/drivers/parisc/iosapic.c	2006-09-28 10:15:30.000000000 +0530
@@ -887,6 +887,7 @@ void *iosapic_register(unsigned long hpa
 	vip = isi->isi_vector = (struct vector_info *)
 		kzalloc(sizeof(struct vector_info) * isi->isi_num_vectors, GFP_KERNEL);
 	if (vip == NULL) {
+		iounmap(isi->addr);
 		kfree(isi);
 		return NULL;
 	}
diff -uprN -X linux-2.6.18-orig/Documentation/dontdiff linux-2.6.18-orig/drivers/parisc/lba_pci.c linux-2.6.18/drivers/parisc/lba_pci.c
--- linux-2.6.18-orig/drivers/parisc/lba_pci.c	2006-08-24 02:46:33.000000000 +0530
+++ linux-2.6.18/drivers/parisc/lba_pci.c	2006-09-28 10:17:56.000000000 +0530
@@ -1574,6 +1574,7 @@ lba_driver_probe(struct parisc_device *d
 		cfg_ops = &mercury_cfg_ops;
 	} else {
 		printk(KERN_ERR "Unknown LBA found at 0x%lx\n", dev->hpa.start);
+		iounmap(addr);
 		return -ENODEV;
 	}
 
@@ -1589,6 +1590,7 @@ lba_driver_probe(struct parisc_device *d
 	lba_dev = kzalloc(sizeof(struct lba_device), GFP_KERNEL);
 	if (!lba_dev) {
 		printk(KERN_ERR "lba_init_chip - couldn't alloc lba_device\n");
+		iounmap(addr);
 		return(1);
 	}
 
@@ -1606,8 +1608,11 @@ lba_driver_probe(struct parisc_device *d
 	pcibios_register_hba(HBA_DATA(lba_dev));
 	spin_lock_init(&lba_dev->lba_lock);
 
-	if (lba_hw_init(lba_dev))
+	if (lba_hw_init(lba_dev)) {
+		iounmap(lba_dev->hba.base_addr);
+		lba_dev->hba.base_addr = NULL;
 		return(1);
+	}
 
 	/* ---------- Third : setup I/O Port and MMIO resources  --------- */
 


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I don't see anyone who knows anything about this driver on the CC list
for this patch which is already in Linus' tree.  That's poor form.
You need to check MODULE_AUTHOR next time.

commit af907dc8cd4157d629e48533b3400786467340d5
Author: Amol Lad <amol@verismonetworks.com>
Date:   Sat Sep 30 23:29:25 2006 -0700

    [PATCH] ioremap balanced with iounmap for drivers/serial/mux.c
    
    ioremap must be balanced by an iounmap and failing to do so can result
    in a memory leak.
    
    Signed-off-by: Amol Lad <amol@verismonetworks.com>
    Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
    Signed-off-by: Andrew Morton <akpm@osdl.org>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>


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On Mon, Oct 02, 2006 at 10:17:19PM -0400, Jeff Bailey wrote:
> I'm not claiming I know where the bug is, but I wanted to know what the
> change was that happened between a bootable kernel and a non-bootable
> kernel.

I suppose the obvious thing to do is to objdump -dr each kernel and then
diff the two.  That'll tell you if it's a heisenbug or if there's
actually any difference.

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Subject: Re: [parisc-linux] check_ivt panic / binutils
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> > > I bisected the binutils CVS until I found the failure point.  It seems
> > > that with 2006-04-30 I don't get the check_ivt failure (although the
> > > kernel does die immediately after e100 is initialised), but at
> > > 2006-05-01, I get the check_ivt failure.
> >=20
> > It's not at all obvious why you think this is a binutils bug.
> 
> Sorry, the first part of the conversation happened on IRC, my bad.
> 
> I was trying to figure out why I was seeing a problem that Joel had
> reported before and no-one else was.  Kyle got me to try a sid chroot,
> and it didn't happen there.  Eventually I narrowed down the difference
> between a working kernel and a non-working one was whether I was using a
> bleeding edge CVS snapshot, or whether I was using the released
> binutils-2.17 package.

If you think it's a binutils issue, then cmp the two kernels
or modules and see if they differ.  Generate an assembler printout
for the code that caused the panic.  This would show if there's a
relocation issue with the instruction that causes the panic.

There haven't been many changes to the hppa binutils port in recent
months.  The TLS stuff went in after you say the failure started.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Jeff Bailey <jbailey@raspberryginger.com>
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Subject: [parisc-linux] check_ivt panic / binutils
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I bisected the binutils CVS until I found the failure point.  It seems
that with 2006-04-30 I don't get the check_ivt failure (although the
kernel does die immediately after e100 is initialised), but at
2006-05-01, I get the check_ivt failure.

What's *really* annoying is that the only changes between the two appear
to be MIPS stuff.  http://people.ubuntu.com/~jbailey/binutils.patch or
"cvs diff -D 2006-04-30 -D 2006-05-01" to see what I mean.

My kernel config is at http://people.ubuntu.com/~jbailey/a500_config if
it's of any use.  I'm not sure what to look at next.

Tks,
Jeff Bailey

-- 
Although when you're in the situation that RMS is telling you that
you're being too ideological about freedom, maybe, just maybe, it's
true.
- Matthew Wilcox

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Subject: Re: [parisc-linux] check_ivt panic / binutils
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Le lundi 02 octobre 2006 =C3=A0 22:11 -0400, John David Anglin a =C3=A9crit=
 :
> > I bisected the binutils CVS until I found the failure point.  It seems
> > that with 2006-04-30 I don't get the check_ivt failure (although the
> > kernel does die immediately after e100 is initialised), but at
> > 2006-05-01, I get the check_ivt failure.
>=20
> It's not at all obvious why you think this is a binutils bug.

Sorry, the first part of the conversation happened on IRC, my bad.

I was trying to figure out why I was seeing a problem that Joel had
reported before and no-one else was.  Kyle got me to try a sid chroot,
and it didn't happen there.  Eventually I narrowed down the difference
between a working kernel and a non-working one was whether I was using a
bleeding edge CVS snapshot, or whether I was using the released
binutils-2.17 package.

I'm not claiming I know where the bug is, but I wanted to know what the
change was that happened between a bootable kernel and a non-bootable
kernel.

> >  IIR: 0e60109c    ISR: 0000000000000000  IOR: 0000000100000000
>=20
> $ disasm 0x0e60109c
>    0:   0e 60 10 9c     ldw 0(r19),ret0
>=20
> > r16-19  00000000f00003b0 00000000f000024c 00000000f0002b4c 000000010000=
0000
>=20
> The r19 value is the problem.

--=20
Although when you're in the situation that RMS is telling you that
you're being too ideological about freedom, maybe, just maybe, it's
true.
- Matthew Wilcox

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From - Thu Nov 08 21:36:54 2018
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From: "John David Anglin" <dave@hiauly1.hia.nrc.ca>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] check_ivt panic / binutils
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To: jbailey@raspberryginger.com (Jeff Bailey)
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Xref: news.gmane.org gmane.linux.ports.parisc:25322

> I bisected the binutils CVS until I found the failure point.  It seems
> that with 2006-04-30 I don't get the check_ivt failure (although the
> kernel does die immediately after e100 is initialised), but at
> 2006-05-01, I get the check_ivt failure.

It's not at all obvious why you think this is a binutils bug.

>  IIR: 0e60109c    ISR: 0000000000000000  IOR: 0000000100000000

$ disasm 0x0e60109c
   0:   0e 60 10 9c     ldw 0(r19),ret0

> r16-19  00000000f00003b0 00000000f000024c 00000000f0002b4c 0000000100000000

The r19 value is the problem.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Subject: [parisc-linux] Re: [PATCH 3/3] IRQ: Maintain regs pointer globally
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Cc: David Howells <dhowells@redhat.com>,
 Andrew Morton <akpm@osdl.org>,
 parisc-linux@parisc-linux.org,
 linux-kernel@vger.kernel.org,
 linux-arch@vger.kernel.org
To: Linus Torvalds <torvalds@osdl.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:25323

On Fri, Oct 06, 2006 at 11:01:24AM -0700, Linus Torvalds wrote:
> On Fri, 6 Oct 2006, Russell King wrote:
> > 
> > If it's obvious and trivial, it should be easy for anyone to fix, even
> > the person who broke it.  Especially as there are build logs automatically
> > generated for every -git tree at http://armlinux.simtec.co.uk/kautobuild/
> 
> Ok, I just committed a rough first cut at fixing up arm/.

Could you do:

git-pull git://git.parisc-linux.org/git/linux-2.6.git irq-fixes

Or apply the patch below, if that's easier

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 9bdd019..2ece7c7 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -35,8 +35,8 @@ #include <asm/smp.h>
 
 #undef PARISC_IRQ_CR16_COUNTS
 
-extern irqreturn_t timer_interrupt(int, void *, struct pt_regs *);
-extern irqreturn_t ipi_interrupt(int, void *, struct pt_regs *);
+extern irqreturn_t timer_interrupt(int, void *);
+extern irqreturn_t ipi_interrupt(int, void *);
 
 #define EIEM_MASK(irq)       (1UL<<(CPU_IRQ_MAX - irq))
 
@@ -375,7 +375,7 @@ #ifdef CONFIG_SMP
 		goto set_out;
 	}
 #endif
-	__do_IRQ(irq, regs);
+	__do_IRQ(irq);
 
  out:
 	irq_exit();
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 1d58ce0..b448392 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -66,7 +66,7 @@ irqreturn_t timer_interrupt(int irq, voi
 	/* gcc can optimize for "read-only" case with a local clocktick */
 	unsigned long cpt = clocktick;
 
-	profile_tick(CPU_PROFILING, regs);
+	profile_tick(CPU_PROFILING);
 
 	/* Initialize next_tick to the expected tick time. */
 	next_tick = cpu_data[cpu].it_value;
diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index c9b0b89..e774dd3 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -328,7 +328,7 @@ static int hil_kbd_connect(struct serio 
 	kbd->dev->id.vendor	= PCI_VENDOR_ID_HP;
 	kbd->dev->id.product	= 0x0001; /* TODO: get from kbd->rsc */
 	kbd->dev->id.version	= 0x0100; /* TODO: get from kbd->rsc */
-	kbd->dev->dev		= &serio->dev;
+	kbd->dev->cdev.dev	= &serio->dev;
 
 	for (i = 0; i < 128; i++) {
 		set_bit(hil_kbd_set1[i], kbd->dev->keybit);
diff --git a/drivers/input/mouse/hil_ptr.c b/drivers/input/mouse/hil_ptr.c
index 402b057..4f2b503 100644
--- a/drivers/input/mouse/hil_ptr.c
+++ b/drivers/input/mouse/hil_ptr.c
@@ -375,7 +375,7 @@ #endif
 	ptr->dev->id.vendor	= PCI_VENDOR_ID_HP;
 	ptr->dev->id.product	= 0x0001; /* TODO: get from ptr->rsc */
 	ptr->dev->id.version	= 0x0100; /* TODO: get from ptr->rsc */
-	ptr->dev->dev		= &serio->dev;
+	ptr->dev->cdev.dev	= &serio->dev;
 
 	input_register_device(ptr->dev);
 	printk(KERN_INFO "input: %s (%s), ID: %d\n",
diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
index 081fdc3..74f14e0 100644
--- a/drivers/input/serio/gscps2.c
+++ b/drivers/input/serio/gscps2.c
@@ -166,7 +166,7 @@ static inline int gscps2_writeb_output(s
 
 	/* make sure any received data is returned as fast as possible */
 	/* this is important e.g. when we set the LEDs on the keyboard */
-	gscps2_interrupt(0, NULL, NULL);
+	gscps2_interrupt(0, NULL);
 
 	return 1;
 }
@@ -306,7 +306,7 @@ static int gscps2_open(struct serio *por
 	/* enable it */
 	gscps2_enable(ps2port, ENABLE);
 
-	gscps2_interrupt(0, NULL, NULL);
+	gscps2_interrupt(0, NULL);
 
 	return 0;
 }
diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index bbbe15e..bdfde04 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -162,10 +162,10 @@ static void hil_mlc_send_polls(hil_mlc *
 		if (did != (p & HIL_PKT_ADDR_MASK) >> 8) {
 			if (drv == NULL || drv->interrupt == NULL) goto skip;
 
-			drv->interrupt(serio, 0, 0, NULL);
-			drv->interrupt(serio, HIL_ERR_INT >> 16, 0, NULL);
-			drv->interrupt(serio, HIL_PKT_CMD >> 8,  0, NULL);
-			drv->interrupt(serio, HIL_CMD_POL + cnt, 0, NULL);
+			drv->interrupt(serio, 0, 0);
+			drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+			drv->interrupt(serio, HIL_PKT_CMD >> 8,  0);
+			drv->interrupt(serio, HIL_CMD_POL + cnt, 0);
 		skip:
 			did = (p & HIL_PKT_ADDR_MASK) >> 8;
 			serio = did ? mlc->serio[mlc->di_map[did-1]] : NULL;
@@ -174,10 +174,10 @@ static void hil_mlc_send_polls(hil_mlc *
 		}
 		cnt++; i++;
 		if (drv == NULL || drv->interrupt == NULL) continue;
-		drv->interrupt(serio, (p >> 24), 0, NULL);
-		drv->interrupt(serio, (p >> 16) & 0xff, 0, NULL);
-		drv->interrupt(serio, (p >> 8) & ~HIL_PKT_ADDR_MASK, 0, NULL);
-		drv->interrupt(serio, p & 0xff, 0, NULL);
+		drv->interrupt(serio, (p >> 24), 0);
+		drv->interrupt(serio, (p >> 16) & 0xff, 0);
+		drv->interrupt(serio, (p >> 8) & ~HIL_PKT_ADDR_MASK, 0);
+		drv->interrupt(serio, p & 0xff, 0);
 	}
 }
 
@@ -780,16 +780,16 @@ static int hil_mlc_serio_write(struct se
 	while ((last != idx) && (*last == 0)) last--;
 
 	while (idx != last) {
-		drv->interrupt(serio, 0, 0, NULL);
-		drv->interrupt(serio, HIL_ERR_INT >> 16, 0, NULL);
-		drv->interrupt(serio, 0, 0, NULL);
-		drv->interrupt(serio, *idx, 0, NULL);
+		drv->interrupt(serio, 0, 0);
+		drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+		drv->interrupt(serio, 0, 0);
+		drv->interrupt(serio, *idx, 0);
 		idx++;
 	}
-	drv->interrupt(serio, 0, 0, NULL);
-	drv->interrupt(serio, HIL_ERR_INT >> 16, 0, NULL);
-	drv->interrupt(serio, HIL_PKT_CMD >> 8, 0, NULL);
-	drv->interrupt(serio, *idx, 0, NULL);
+	drv->interrupt(serio, 0, 0);
+	drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+	drv->interrupt(serio, HIL_PKT_CMD >> 8, 0);
+	drv->interrupt(serio, *idx, 0);
 	
 	mlc->serio_oidx[map->didx] = 0;
 	mlc->serio_opacket[map->didx] = 0;
diff --git a/drivers/net/lasi_82596.c b/drivers/net/lasi_82596.c
index 8cbd940..f4d815b 100644
--- a/drivers/net/lasi_82596.c
+++ b/drivers/net/lasi_82596.c
@@ -1252,7 +1252,7 @@ #ifdef CONFIG_NET_POLL_CONTROLLER
 static void i596_poll_controller(struct net_device *dev)
 {
 	disable_irq(dev->irq);
-	i596_interrupt(dev->irq, dev, NULL);
+	i596_interrupt(dev->irq, dev);
 	enable_irq(dev->irq);
 }
 #endif
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index a0a8fd8..03c763c 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -389,7 +389,7 @@ ilr_again:
 		int irq = dino_dev->global_irq[local_irq];
 		DBG(KERN_DEBUG "%s(%d, %p) mask 0x%x\n",
 			__FUNCTION__, irq, intr_dev, mask);
-		__do_IRQ(irq, regs);
+		__do_IRQ(irq);
 		mask &= ~(1 << local_irq);
 	} while (mask);
 
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 094562e..e97cecb 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -234,7 +234,7 @@ static irqreturn_t eisa_irq(int wax_irq,
 	}
 	spin_unlock_irqrestore(&eisa_irq_lock, flags);
 
-	__do_IRQ(irq, regs);
+	__do_IRQ(irq);
    
 	spin_lock_irqsave(&eisa_irq_lock, flags);
 	/* unmask */
diff --git a/drivers/serial/mux.c b/drivers/serial/mux.c
index aa819d3..8ad1b8c 100644
--- a/drivers/serial/mux.c
+++ b/drivers/serial/mux.c
@@ -230,7 +230,7 @@ static void mux_read(struct uart_port *p
 				continue;
 		}
 
-		if (uart_handle_sysrq_char(port, data & 0xffu, NULL))
+		if (uart_handle_sysrq_char(port, data & 0xffu))
 			continue;
 
 		tty_insert_flip_char(tty, data & 0xFF, TTY_NORMAL);
diff --git a/include/asm-parisc/irq_regs.h b/include/asm-parisc/irq_regs.h
new file mode 100644
index 0000000..3dd9c0b
--- /dev/null
+++ b/include/asm-parisc/irq_regs.h
@@ -0,0 +1 @@
+#include <asm-generic/irq_regs.h>
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Can gcc-4.0-hppa64 and gcc-4.0 be dropped for etch? My current plan is
to keep gcc-4.1-hppa64 and gcc-3.4-hppa64. we can drop gcc-3.4-hppa64
as well, but will have to keep the other compilers from the GCC-3.4
package anyway.

  Matthias


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Subject: Re: [parisc-linux] C3600 crash with PCMCIA bridge
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The crash occurs because the first argument in the call to
pci_enable_bridges is a null pointer.  It's here:

102253dc <pci_enable_bridges>:
102253dc:       6b c2 3f d9     stw rp,-14(sp)
102253e0:       6f c4 00 80     stw,ma r4,40(sp)
102253e4:       6b c3 3f 89     stw r3,-3c(sp)
102253e8:       4b 5c 00 28     ldw 14(r26),ret0

r26 is zero.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: James Bottomley <James.Bottomley@SteelEye.com>
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Subject: Re: [parisc-linux] C3600 crash with PCMCIA bridge
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On Sat, 2006-10-07 at 16:55 +0200, Guy Martin wrote:
> I've been experiencing kernel crashes when I plug a RICOH RL5c475 cardbus bridge.
> 
> I've attached the crash info.
> 
> Linux hope 2.6.17.4-pa6 #1 Thu Jul 13 09:06:34 CEST 2006 parisc PA8600 (PCX-W+) GNU/Linux

The only parisc chip known to work with cardbus is dino ... there are a
few strage tweaks you have to do to get it all running (and even dino
only seems to work with my single socket yenta bridge; it doesn't work
for helge with his dual yenta tadpole).

No-one's ever looked at putting the necessary code into astro ...
although it shouldn't be that hard.

James


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Cc: David Howells <dhowells@redhat.com>,
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On Fri, Oct 06, 2006 at 08:54:44PM -0600, Matthew Wilcox wrote:
> git-pull git://git.parisc-linux.org/git/linux-2.6.git irq-fixes
> 
> Or apply the patch below, if that's easier

And the next series of patches actually make it boot.

git-pull git://git.parisc-linux.org/git/linux-2.6.git irq-fixes

Kyle McMartin:
      [PARISC] Make firmware calls irqsafe-ish...

Matthew Wilcox:
      [PARISC] Use set_irq_regs
      [PA-RISC] Fix boot breakage
      [PARISC] pdc_init no longer exists
      [PARISC] More pt_regs removal

 arch/parisc/kernel/drivers.c  |    6 -
 arch/parisc/kernel/firmware.c |  250 +++++++++++++++++++++++++-----------------
 arch/parisc/kernel/irq.c      |    3 
 arch/parisc/kernel/smp.c      |   15 --
 arch/parisc/kernel/time.c     |   32 ++---
 include/asm-parisc/pdc.h      |    2 
 6 files changed, 177 insertions(+), 131 deletions(-)

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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: [parisc-linux] C3600 crash with PCMCIA bridge
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Hi all,

I've been experiencing kernel crashes when I plug a RICOH RL5c475 cardbus bridge.

I've attached the crash info.

Linux hope 2.6.17.4-pa6 #1 Thu Jul 13 09:06:34 CEST 2006 parisc PA8600 (PCX-W+) GNU/Linux

The kernel config is available here :
https://www.tuxicoman.be/temp/c3600-2.6.17.4-pa6.config

Regards,
  Guy

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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] Proposal for git tree management
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I think the git development model is working out pretty well.  We've
committed around 100 patches to our tree since we switched to using git.
Most of those have gone upstream, mostly through Kyle's hard work.

However, figuring out what is left to merge is getting harder.  Due to
trying to keep Linus' tree clean, the commit that goes into our
development tree isn't the same one that ends up in his tree.  So it's
hard to tell what's been committed and what hasn't.  Don't get me wrong,
it's still an improvement over using CVS, but I think we could use Git
more effectively.

Right now, git-log linus..origin shows all the patches we've ever
committed, regardless of whether they've been merged.  A graphic would
make this easier:

A -> B -> C -> D' -> E
 \-> D -------/-> F --\->G

This illustrates Linus' tree at time A.  We clone his tree and make
change D, and eventually it ends up in Linus' tree as D' (after changes
B and C have happened in his tree).  At point G, git-log linus..master
shows change D, even though it was already merged to the linus tree.

The obvious solution is to rebase the tree.  We start a new origin
branch from point E and pull commit F onto it as commit F'.  But if we
delete the former origin branch we lose our history.  So I'd like to
rename it (probably to something like devel-2006-10-07), and create a
new origin.  That way we can still go back and find our history, and
still keep git-log useful.

I'm concerned we may get an unreasonable number of branches using this
scheme.  Using a date (rather than a cardinal) helps understand how
relevant a branch may be.

Anyway, comments, suggestions, alternatives, abuse?
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From: Guy Martin <gmsoft@tuxicoman.be>
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Dave,

Thanks, by checking if lba_bus is != NULL before calling pci_enable_bridges() in lba_pci.c, my C3600 does boot.
However the bridge isn't working but that was expected :)

  Guy

On Sat, 7 Oct 2006 11:27:52 -0400 (EDT)
"John David Anglin" <dave@hiauly1.hia.nrc.ca> wrote:

> The crash occurs because the first argument in the call to
> pci_enable_bridges is a null pointer.  It's here:
> 
> 102253dc <pci_enable_bridges>:
> 102253dc:       6b c2 3f d9     stw rp,-14(sp)
> 102253e0:       6f c4 00 80     stw,ma r4,40(sp)
> 102253e4:       6b c3 3f 89     stw r3,-3c(sp)
> 102253e8:       4b 5c 00 28     ldw 14(r26),ret0
> 
> r26 is zero.
> 
> Dave
> -- 
> J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
> National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

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On Sat, Oct 07, 2006 at 06:41:52PM -0600, Matthew Wilcox wrote:
> 
> I think the git development model is working out pretty well.  We've
> committed around 100 patches to our tree since we switched to using git.
> Most of those have gone upstream, mostly through Kyle's hard work.

Agreed - many kudos/thanks to kyle!

...
> The obvious solution is to rebase the tree.  We start a new origin
> branch from point E and pull commit F onto it as commit F'.  But if we
> delete the former origin branch we lose our history.

I don't care so much about "our" history. I mostly care
about the commit message(s) that end up in linus' tree.

> I'm concerned we may get an unreasonable number of branches using this
> scheme.  Using a date (rather than a cardinal) helps understand how
> relevant a branch may be.

I think anything is ok if it helps us determine what's missing
from linus' tree and ship those patches (when ready) to him.
I'll probably end up ignoring the branches anyway.

Please just make it "KISS". I'm only using git a few times per month
and it's just not enough to do anything complicated right now.
My goal is any git commits I make can (indirectly via kyle) go
to linus without the confusion you described.

thanks!
grant
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On Sat, Oct 07, 2006 at 04:55:19PM +0200, Guy Martin wrote:
> I've been experiencing kernel crashes when I plug a RICOH RL5c475
> cardbus bridge.
> 
> I've attached the crash info.

Thanks - I've looked over lba_driver_probe() and I'm wondering why
we are getting a NULL pointer back from pci_scan_bus_parented().

If you could determine why pci_create_bus() is returning a NULL
pointer to pci_scan_bus_parented(), that would probably provide
clues to the real problem.

And the first "if (lba_bus)" right after that bus scan seems
wrong to me too since the code below it will crash anyway.
Seems a NULL lba_bus should cleanup and exit with an error.

thanks,
grant
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Subject: [parisc-linux] CCIO dma io_command and related io_tlb format
	questions.
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Xref: news.gmane.org gmane.linux.ports.parisc:25333

Hello Grant,

I back port the sba sg list manager in ccio-dma on my d380 (not enough ti=
me to
test c110).

On one hand, it seems to improve a bit ncr53c720 behaviour: tar/rm loop t=
est
run longer (at least 2h in place of 5/10 min)

Otoh no change (may be even worse) for ncr53c710 and break secondary nic =
(the
setup of this card make panicing the system?)

That said, there are no public doc of this IO stuff and so I didn't chang=
e
those 2 hunks:
[snip]
static CCIO_INLINE void
ccio_clear_io_tlb(struct ioc *ioc, dma_addr_t iovp, size_t byte_cnt)
{
        u32 chain_size =3D 1 << ioc->chainid_shift;

        iovp &=3D IOVP_MASK;      /* clear offset bits, just want pagenum=
 */
        byte_cnt +=3D chain_size;

        while(byte_cnt > chain_size) {
                WRITE_U32(CMD_TLB_PURGE | iovp, &ioc->ioc_regs->io_comman=
d);   
                iovp +=3D chain_size;
                byte_cnt -=3D chain_size;
        }
}

[snip]

static void
ccio_ioc_init(struct ioc *ioc)
{
[snip]

        /*
        ** Initialize all I/O TLB entries to 0 (Valid bit off).
        */
        WRITE_U32(0, &ioc->ioc_regs->io_tlb_entry_m);
        WRITE_U32(0, &ioc->ioc_regs->io_tlb_entry_l);

        for(i =3D 1 << CCIO_CHAINID_SHIFT; i ; i--) {
                WRITE_U32((CMD_TLB_DIRECT_WRITE | (i << ioc->chainid_shif=
t)),
                          &ioc->ioc_regs->io_command);
        } 
}
...

About which cames to me 2 questions:
   1/ what is supposed to contain an io_tlb entry: a io (page size) addre=
ss
      as seems to say the value ("CMD_TLB_PURGE | iovp")
      in ccio_clear_io_tlb() or a memory page size should be splited in
      severall tlb entries per ioc->chainid_shift?

   2/ what is supposed to contain the ccio io_command register, I mean th=
at 
      I don't understand what seems to me to be different io_command
      contents for CMD_TLB_DIRECT_WRITE or CMD_TLB_PURGE?

If you still have (or access to) this internal doc, it would be great if =
you
could find some time to explain me those stuff.

TIA,
    Joel
=0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devenez au=
jourd'hui Scarlet One grace a un client existant de Scarlet, vous recevez=
 tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur http:/=
/www.clubscarlet.be

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Cc: parisc-linux@parisc-linux.org,
 Matthew Wilcox <matthew@wil.cx>
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On 10/9/06, Grant Grundler <grundler@parisc-linux.org> wrote:
> On Sat, Oct 07, 2006 at 06:41:52PM -0600, Matthew Wilcox wrote:
> >
> > I think the git development model is working out pretty well.  We've
> > committed around 100 patches to our tree since we switched to using git.
> > Most of those have gone upstream, mostly through Kyle's hard work.
>
> Agreed - many kudos/thanks to kyle!

All hail Kyle indeed :)

> > The obvious solution is to rebase the tree.  We start a new origin
> > branch from point E and pull commit F onto it as commit F'.  But if we
> > delete the former origin branch we lose our history.
>
> I don't care so much about "our" history. I mostly care
> about the commit message(s) that end up in linus' tree.

Despite not being terribly active nowadays, I'd like to contrast this
view a little bit. "Our" history has proven very useful (at least to
me) in a number of cases (comes to mind the development of gscps2
input driver based on evolutions of hp_kbd.c and friends) and I
remember quite a few occasion where it was actually interesting to be
able to track down who committed any given bit of code (for some
reason I remember tracking down prumpf's commits in some well known
locking routine, among other things).

On a more "play the devil's advocate" side of things, i believe it's
of great importance to be able to track down when any given code was
first introduced and who committed it. Copyright issues such as the
SCO-induced shite are a good demonstration that being able to quickly
assert copyright/genealogy on any given bit is a good thing...

> > I'm concerned we may get an unreasonable number of branches using this
> > scheme.  Using a date (rather than a cardinal) helps understand how
> > relevant a branch may be.
>
> I think anything is ok if it helps us determine what's missing
> from linus' tree and ship those patches (when ready) to him.
> I'll probably end up ignoring the branches anyway.
>
> Please just make it "KISS". I'm only using git a few times per month
> and it's just not enough to do anything complicated right now.
> My goal is any git commits I make can (indirectly via kyle) go
> to linus without the confusion you described.

I'd also strongly support a KISS approach. Yet I was under the
impression that rebasing the tree would break any subsequent 'git
pull' on older trees, is that right?

Along those lines I'm also thinking that assuming we want to revive
our kernel autobuilder, we probably want to think of a git tree
architecture that will induce minimal man handling of the autobuilder
once started...

Just my 2c, well aware that I'm not paying enough attention to our
development process lately, and thus I may be full of sh*t  ;^)

HTH

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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On Mon, Oct 09, 2006 at 01:39:58PM +0200, Thibaut VARENE wrote:
> >Please just make it "KISS". I'm only using git a few times per month
> >and it's just not enough to do anything complicated right now.
> >My goal is any git commits I make can (indirectly via kyle) go
> >to linus without the confusion you described.
> 
> I'd also strongly support a KISS approach. Yet I was under the
> impression that rebasing the tree would break any subsequent 'git
> pull' on older trees, is that right?

Yes.  And no.  It depends ;-)

If your refspec looks like this:

$ cat .git/remotes/origin 
URL: ssh://git.parisc-linux.org/var/git/linux-2.6.git
Pull: refs/heads/master:refs/heads/origin
Pull: refs/heads/linus:refs/heads/linus

then it's going to whinge about not being able to fast-forward.
However, if you add a +, like this:

Pull: +refs/heads/master:refs/heads/origin

then it'll update the ref, even if it's not a fast-forward.

> Along those lines I'm also thinking that assuming we want to revive
> our kernel autobuilder, we probably want to think of a git tree
> architecture that will induce minimal man handling of the autobuilder
> once started...

I agree, though I wouldn't expect rebasing to be a common operation
(every 2-3 months), it would suck to inadvertently break the autobuilder.
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On Mon, Oct 09, 2006 at 12:06:52PM -0600, Matthew Wilcox wrote:
> I agree, though I wouldn't expect rebasing to be a common operation
> (every 2-3 months), it would suck to inadvertently break the autobuilder.
>

if we queue the autobuilder based on tags, even if we rebase, we will never
have an issue, since git-prune will only remove unreachable commits. as long
as we have a tag for the pre-rebased commits, they'll never be removed, which
is the desired behaviour (since the autobuilder will always be able to check
them out.)

cheers,
	kyle
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Xref: news.gmane.org gmane.linux.ports.parisc:25337

Enable HIL configuration options on HP300

Signed-Off-By: Kars de Jong <jongk@linux-m68k.org>
Signed-Off-By: Geert Uytterhoeven <geert@linux-m68k.org>

---
 keyboard/Kconfig |    4 ++--
 misc/Kconfig     |    2 +-
 mouse/Kconfig    |    2 +-
 serio/Kconfig    |    2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

--- linux/drivers/input/keyboard/Kconfig	2005/06/18 16:15:57	1.1.1.12
+++ linux/drivers/input/keyboard/Kconfig	2005/08/29 19:17:44	1.2
@@ -154,7 +154,7 @@ config KEYBOARD_AMIGA
 
 config KEYBOARD_HIL_OLD
 	tristate "HP HIL keyboard support (simple driver)"
-	depends on GSC
+	depends on GSC || HP300
 	default y
 	help
 	  The "Human Interface Loop" is a older, 8-channel USB-like
@@ -171,7 +171,7 @@ config KEYBOARD_HIL_OLD
 
 config KEYBOARD_HIL
 	tristate "HP HIL keyboard support"
-	depends on GSC
+	depends on GSC || HP300
 	default y
 	select HP_SDC
 	select HIL_MLC
--- linux/drivers/input/misc/Kconfig	2005/06/18 16:15:58	1.1.1.12
+++ linux/drivers/input/misc/Kconfig	2005/08/29 19:17:44	1.2
@@ -51,7 +51,7 @@ config INPUT_UINPUT
 
 config HP_SDC_RTC
 	tristate "HP SDC Real Time Clock"       
-	depends on GSC
+	depends on GSC || HP300
 	select HP_SDC
 	help
 	  Say Y here if you want to support the built-in real time clock
--- linux/drivers/input/mouse/Kconfig	2005/06/18 16:15:58	1.1.1.18
+++ linux/drivers/input/mouse/Kconfig	2005/08/29 19:17:44	1.2
@@ -129,7 +129,7 @@ config MOUSE_VSXXXAA
 
 config MOUSE_HIL
 	tristate "HIL pointers (mice etc)."     
-	depends on GSC
+	depends on GSC || HP300
 	select HP_SDC
 	select HIL_MLC
 	help
--- linux/drivers/input/serio/Kconfig	2005/08/29 14:19:56	1.1.1.17
+++ linux/drivers/input/serio/Kconfig	2005/08/29 19:17:45	1.5
@@ -112,7 +112,7 @@ config SERIO_GSCPS2
 
 config HP_SDC
 	tristate "HP System Device Controller i8042 Support"
-	depends on GSC && SERIO
+	depends on (GSC || HP300) && SERIO
 	default y
 	---help---
 	  This option enables supports for the the "System Device

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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Subject: [parisc-linux] Re: CCIO dma io_command and related io_tlb format
	questions.
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On Mon, Oct 09, 2006 at 11:41:11AM +0200, Joel Soete wrote:
> Hello Grant,
> 
> I back port the sba sg list manager in ccio-dma on my d380 (not enough time to
> test c110).
...

Sounds like you have some debugging to do still...I'll try to
answer the questions below.

> That said, there are no public doc of this IO stuff

There is none for CCIO. And I no longer have access to those
documents (deleted them from my laptop/workstations).
You'd need access to U2/Uturn ERS via OSDL.


> and so I didn't change those 2 hunks:
> [snip]
> static CCIO_INLINE void
> ccio_clear_io_tlb(struct ioc *ioc, dma_addr_t iovp, size_t byte_cnt)
...
> ccio_ioc_init(struct ioc *ioc)
...
> About which cames to me 2 questions:
>    1/ what is supposed to contain an io_tlb entry:

You want to know the layout of the "ioc_command" register.
It is a combination of iovp and command.


>       a io (page size) address as seems to say the value
>      ("CMD_TLB_PURGE | iovp") in ccio_clear_io_tlb()

Offhand I'm not sure of the exact split but guess it's
lower 12 bits for command and upper 20 bits for IO Virtual Page
as used in ccio_clear_io_tlb().

>       or a memory page size should be splited in
>       severall tlb entries per ioc->chainid_shift?

ccio_ioc_init is just clearing the entire IO TLB.
We know there are only "1<<CCIO_CHAINID_SHIFT" IO TLB entries.
See comments above where CCIO_CHAINID_SHIFT is defined.
ccio_clear_io_tlb() is just purging all of them.

>    2/ what is supposed to contain the ccio io_command register, I mean that
>       I don't understand what seems to me to be different io_command
>       contents for CMD_TLB_DIRECT_WRITE or CMD_TLB_PURGE?

Generally we only need to use CMD_TLB_PURGE to avoid use of stale entries.
You shouldn't need to change the uses of CMD_TLB_DIRECT_WRITE.

> If you still have (or access to) this internal doc, it would be great if you
> could find some time to explain me those stuff.

Sorry - I don't.

Hope that helps,
grant
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Subject: [parisc-linux] Re: CCIO dma io_command and related io_tlb format
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> On Mon, Oct 09, 2006 at 11:41:11AM +0200, Joel Soete wrote:
> > Hello Grant,
> > 
> > I back port the sba sg list manager in ccio-dma on my d380 (not enoug=
h time to
> > test c110).
> ...
> 
> Sounds like you have some debugging to do still...
(why I mentioned progress and failures ;-) )

> I'll try to
> answer the questions below.
> 
> > That said, there are no public doc of this IO stuff
> 
> There is none for CCIO. And I no longer have access to those
> documents (deleted them from my laptop/workstations).
too bad ;_(

> You'd need access to U2/Uturn ERS via OSDL.
> 
Any links (I looking for in http://ftp.parisc-linux.org/docs/chips and mo=
re
google search but no success?)

> 
> > and so I didn't change those 2 hunks:
> > [snip]
> > static CCIO_INLINE void
> > ccio_clear_io_tlb(struct ioc *ioc, dma_addr_t iovp, size_t byte_cnt)
> ...
> > ccio_ioc_init(struct ioc *ioc)
> ...
> > About which cames to me 2 questions:
> >    1/ what is supposed to contain an io_tlb entry:
> 
> You want to know the layout of the "ioc_command" register.
> It is a combination of iovp and command.
> 
> 
> >       a io (page size) address as seems to say the value
> >      ("CMD_TLB_PURGE | iovp") in ccio_clear_io_tlb()
> 
> Offhand I'm not sure of the exact split but guess it's
> lower 12 bits for command and upper 20 bits for IO Virtual Page
> as used in ccio_clear_io_tlb().
> 
mmm could it be the pb: the computed chainid_shift on my d380 is 19 (deci=
mal)?

btw what's about the IOV page size used by sba (IOVP_SIZE i.e. PAGE_SIZE =
till
now?)

The question for ccio is: why using chainid_shift (by set io_chain_id_mas=
k)
different then IOVP_SHIFT, as ,as far as I understand, we manage only
IPVP_SIZE page? (imho couls be what means "FIXME: Can we change byte_cnt =
to
pages_mappged" of ccio_mark_invalid?)

btw what is correct for you in this setup:
WRITE_U32(CCIO_CHAINID_MASK << ioc->chainid_shift,
&ioc->ioc_regs->io_chain_id_mask);

the name variable seems to said it should contains the mask correcponding=
 to
the chainid_shift i.e. imho:
let say CHAINID_SIZE =3D (1UL << ioc->chainid_shift) and so
&ioc->ioc_regs->io_chain_id_mask =3D (~(CHAINID_SIZE -1))



> >       or a memory page size should be splited in
> >       severall tlb entries per ioc->chainid_shift?
> 
> ccio_ioc_init is just clearing the entire IO TLB.
> We know there are only "1<<CCIO_CHAINID_SHIFT" IO TLB entries.
> See comments above where CCIO_CHAINID_SHIFT is defined.
> ccio_clear_io_tlb() is just purging all of them.
> 
ok.

Ah btw there wasn't any 'flush purges' action o do with ccio like in sba =
or
only to be managed with fdc/sync?

> >    2/ what is supposed to contain the ccio io_command register, I mea=
n that
> >       I don't understand what seems to me to be different io_command
> >       contents for CMD_TLB_DIRECT_WRITE or CMD_TLB_PURGE?
> 
> Generally we only need to use CMD_TLB_PURGE to avoid use of stale entri=
es.
no pb to understand it.

> You shouldn't need to change the uses of CMD_TLB_DIRECT_WRITE.
> 
but here it's a bit confusing: we are at the kernel startup and just init=
 the
ccio so afaik nothing yet in ccio tlb or at least we don't know what it
contains and we are writing this CMD_TLB_DIRECT_WRITE for this iov page
address (i << chainid_shift) for i =3D 1 to 256 (the 256 Uturn tlb entrie=
s).

That said (without doc), I wouldn't touch to this loop.

> > If you still have (or access to) this internal doc, it would be great=
 if you
> > could find some time to explain me those stuff.
> 
> Sorry - I don't.
> 
No pb, that already helpfull.

May be a last q.

in your code comment you spoke about spa_shift but I didn't find it anywh=
ere
else (neither in the code nor in iodc doc), any idea which symbol is rela=
ted to?

> Hope that helps,

Yes, thanks a lot,
   Joel
> grant
> 
> =0A=0A----------=0AClub Scarlet : Tout le monde gagne! Si vous devenez =
aujourd'hui Scarlet One grace a un client existant de Scarlet, vous recev=
ez tous les deux un cadeau d'une valeur de 50 euros! Surfez vite sur http=
://www.clubscarlet.be

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On Wed, Oct 11, 2006 at 10:48:56AM +0200, Joel Soete wrote:
> > > That said, there are no public doc of this IO stuff
> >
> > There is none for CCIO. And I no longer have access to those
> > documents (deleted them from my laptop/workstations).
> > You'd need access to U2/Uturn ERS via OSDL.
>
> Any links (I looking for in http://ftp.parisc-linux.org/docs/chips and more
> google search but no success?)

No links. OSDL has been talking with HP about NDA access to specific
HP docs for OSDL developers. CCIO docs could be added to that
list of docs if it exists anywhere. I believe PA8800 ERS was
a targeted document as well (for example).


> >
> > >       a io (page size) address as seems to say the value
> > >      ("CMD_TLB_PURGE | iovp") in ccio_clear_io_tlb()
> >
> > Offhand I'm not sure of the exact split but guess it's
> > lower 12 bits for command and upper 20 bits for IO Virtual Page
> > as used in ccio_clear_io_tlb().
> >
> mmm could it be the pb: the computed chainid_shift on my d380 is 19 (decimal)?
> 
> btw what's about the IOV page size used by sba (IOVP_SIZE i.e. PAGE_SIZE till
> now?)

sba and ccio are similar but not identical.
The intent for variable page sizes in SBA is so it can match
whatever page size the kernel is using.


> The question for ccio is: why using chainid_shift (by set io_chain_id_mask)
> different then IOVP_SHIFT, as ,as far as I understand, we manage only
> IPVP_SIZE page? (imho couls be what means "FIXME: Can we change byte_cnt to
> pages_mappged" of ccio_mark_invalid?)

Maybe look at how chainid_shift is initialized and that will make sense.
I'm not sure I understand your question otherwise.

> btw what is correct for you in this setup:
> WRITE_U32(CCIO_CHAINID_MASK << ioc->chainid_shift,
> &ioc->ioc_regs->io_chain_id_mask);
> 
> the name variable seems to said it should contains the mask correcponding to
> the chainid_shift i.e. imho:
> let say CHAINID_SIZE = (1UL << ioc->chainid_shift) and so
> &ioc->ioc_regs->io_chain_id_mask = (~(CHAINID_SIZE -1))

Uhm....sounds reasonable to me. All I know is I believe the existing
code use of chain_id is correct.

> Ah btw there wasn't any 'flush purges' action o do with ccio like in sba or
> only to be managed with fdc/sync?

No. Purging IO TLB entries is not like changing the IO Pdir entries.
Related but seperate activities.

> > You shouldn't need to change the uses of CMD_TLB_DIRECT_WRITE.
>
> but here it's a bit confusing: we are at the kernel startup and just init the
> ccio so afaik nothing yet in ccio tlb or at least we don't know what it
> contains

Exactly. We don't know what it contains. This makes sure we know.

>  and we are writing this CMD_TLB_DIRECT_WRITE for this iov page
> address (i << chainid_shift) for i = 1 to 256 (the 256 Uturn tlb entries).
> 
> That said (without doc), I wouldn't touch to this loop.

Good. :)

> May be a last q.

Maybe? :)

> in your code comment you spoke about spa_shift but I didn't find it anywhere
> else (neither in the code nor in iodc doc), any idea which symbol is related to?

It's obviously a stale comment and you might look at versions of the CCIO code
in the 2.4 source tree to find it.

I suspect it's chain_id_shift but am not sure.

grant
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On Wed, 2006-10-11 at 19:04 -0600, Grant Grundler wrote:
> No links. OSDL has been talking with HP about NDA access to specific
> HP docs for OSDL developers. CCIO docs could be added to that
> list of docs if it exists anywhere. I believe PA8800 ERS was
> a targeted document as well (for example).

Actually, not just OSDL developers.  The OSDL NDA programme is designed
oto manage general spec access for specific lists of developers who may
or may not be associated with OSDL.

Unfortunately, the HP programme is on hold pending the resolution of
external legal issues.

James


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Subject: [parisc-linux] Re: CCIO dma io_command and related io_tlb format
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On Fri, Oct 13, 2006 at 10:56:50AM +0000, Joel Soete wrote:
> 
> 
> Grant Grundler wrote:
> >On Thu, Oct 12, 2006 at 10:02:13AM +0200, Joel Soete wrote:
> >...
> >>well according to the choice of a PAGE_SIZE, a IOVP_SIZE and the actual 
> >>system
> >>ramsize (imho badly named num_physpages?), you can setup the sba?
> >
> >Is that a question or a statement?
> yes,

A correct answer here would be "question" or "statement".
Maybe you want to restate the question so it really looks like
a question.

> >PAGE_SIZE is a compile time option.
> as well as IOVP_SIZE.
> 
> I would just like to be sure, even if it's not translated the same way in C 
> code, that the ccio statement:
> 	WRITE_U32(CCIO_CHAINID_MASK << ioc->chainid_shift,
>                   &ioc->ioc_regs->io_chain_id_mask);
> 
> do the same job as sba statement:
>         WRITE_REG(ioc->imask, ioc->ioc_hpa+IOC_IMASK);
> 
> i.e. seting up the ioc register containing the mask corresponding 
> (one-to-one mapping) to the size of a ioc physical page; and by the means 
> of this mask we set up inderectly the physical page size the ioc 
> (respectilvely ccio and sba) will use to work?
> (just my guessing because no docs)

I think so but am not sure either.

> >Off hand, I'm not sure. It's probably related though.

Actually, it seems that the number of TLB entries is hardcoded
in the _MASK. ie 256 TLB entries:

	/* Uturn supports 256 TLB entries */
	#define CCIO_CHAINID_SHIFT      8
	#define CCIO_CHAINID_MASK       0xff

The "if 0" block above that suggests someone was expecting
the number of TLB entries to be different for different chips.
However, U2 and Uturn both seem to only support 256 entries.


> >We have RAM. The CPU TLB that organizes RAM into "pages" as the
> >minimum granularity that the kernel manages permissions and use of RAM.
> >The IO TLB doesn't have to use the same granularity as the kernel
> >though it's easier (and probably faster in general) to do so.
> >
> Ok so rephrasing the question: the ioc physical page size should be the 
> same as the virtual page size managed by the related sg list driver?

Yes. important is "should be". It doesn't have to be.

> >Ah. chainid could have more to do with the number of TLB entries than
> >the size of the pages. I'm not certain though.

I think the width of chainid_mask describes the number of TLB entries.
chainid_shift probably describes the IO TLB "page size".

And reading the comments in the code help too:
        ** Chainid is the upper most bits of an IOVP used to determine
        ** which TLB entry an IOVP will use.


> PS: those investigations to atempt to fix c110/d380 fs pb make me discover 
> that this d380 have in fact 2 U2/UTurn (as well dicovered by linux kernel). 
> But one this is specialy design to server only one hsc (aka gsc) io slot 
> tagged TURBO ;-)

Ok. But if there are problems only for SCSI and not for 100BT,
then it's either a SCSI driver problem or the ccio_map_sg() support
is broken (handles coalescing of blocks - disable coalescing
to test this out). 

grant
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On Thu, Oct 12, 2006 at 10:02:13AM +0200, Joel Soete wrote:
...
> well according to the choice of a PAGE_SIZE, a IOVP_SIZE and the actual system
> ramsize (imho badly named num_physpages?), you can setup the sba?

Is that a question or a statement?
PAGE_SIZE is a compile time option.
PA2.0 CPUs support sizes other than 4k.
And I think it was Helge that started on enabling bigger
page sizes but it's not working yet.

...
> (is it only the number of io tlb entries?)

Off hand, I'm not sure. It's probably related though.

> My thought was very basic: imho vitualising actual adresses pages would just
> be translation of adresses but the virtual page size should be the same as the
> actual one?

"actual one"?
We have RAM. The CPU TLB that organizes RAM into "pages" as the
minimum granularity that the kernel manages permissions and use of RAM.
The IO TLB doesn't have to use the same granularity as the kernel
though it's easier (and probably faster in general) to do so.


> (and btw the ccio bc using actual pages'size in accordance with computed
> chainid_shift (different then IOVP_SHIFT), ccio_[map, unmap]_single should
> also use chainid_shift to compute chainid_size and chainid_mask to manage sg
> list?)

Ah. chainid could have more to do with the number of TLB entries than
the size of the pages. I'm not certain though.

grant
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Grant Grundler wrote:
> On Thu, Oct 12, 2006 at 10:02:13AM +0200, Joel Soete wrote:
> ...
>> well according to the choice of a PAGE_SIZE, a IOVP_SIZE and the actual system
>> ramsize (imho badly named num_physpages?), you can setup the sba?
> 
> Is that a question or a statement?
yes,
> PAGE_SIZE is a compile time option.
as well as IOVP_SIZE.

I would just like to be sure, even if it's not translated the same way in C code, that the ccio statement:
	WRITE_U32(CCIO_CHAINID_MASK << ioc->chainid_shift,
                   &ioc->ioc_regs->io_chain_id_mask);

do the same job as sba statement:
         WRITE_REG(ioc->imask, ioc->ioc_hpa+IOC_IMASK);

i.e. seting up the ioc register containing the mask corresponding (one-to-one mapping) to the size of a ioc physical page; 
and by the means of this mask we set up inderectly the physical page size the ioc (respectilvely ccio and sba) will use to work?
(just my guessing because no docs)

> PA2.0 CPUs support sizes other than 4k.
> And I think it was Helge that started on enabling bigger
> page sizes but it's not working yet.
> 
Yes what I remember too

> ...
>> (is it only the number of io tlb entries?)
> 
> Off hand, I'm not sure. It's probably related though.
> 
>> My thought was very basic: imho vitualising actual adresses pages would just
>> be translation of adresses but the virtual page size should be the same as the
>> actual one?
> 
> "actual one"?
yes my mind is very ground basic and only what is 'physical' is actual to me (well near about, I never made the travel of an 
electron to verify the cut-up of the ram but as far as it behaves like foreseen I just have to accept it ;-) )

> We have RAM. The CPU TLB that organizes RAM into "pages" as the
> minimum granularity that the kernel manages permissions and use of RAM.
> The IO TLB doesn't have to use the same granularity as the kernel
> though it's easier (and probably faster in general) to do so.
> 
Ok so rephrasing the question: the ioc physical page size should be the same as the virtual page size managed by the related 
sg list driver?

> 
>> (and btw the ccio bc using actual pages'size in accordance with computed
>> chainid_shift (different then IOVP_SHIFT), ccio_[map, unmap]_single should
>> also use chainid_shift to compute chainid_size and chainid_mask to manage sg
>> list?)
> 
> Ah. chainid could have more to do with the number of TLB entries than
> the size of the pages. I'm not certain though.
> 
> grant
> 
> 
PS: those investigations to atempt to fix c110/d380 fs pb make me discover that this d380 have in fact 2 U2/UTurn (as well 
dicovered by linux kernel). But one this is specialy design to server only one hsc (aka gsc) io slot tagged TURBO ;-)

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Subject: Re: [parisc-linux] Re: CCIO dma io_command and related io_tlb format
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On Sat, Oct 14, 2006 at 12:59:11PM +0000, Joel Soete wrote:
> but yes that's the primary question and:
> 	* I encountered pbs with ncr53c720 and core io ncr53c710
> 	 (different pb with each hba but same one-to-one on d380 and c110),
> 	* but no pb with same disk (and its scsi chain: cable + terminator) 
> 	with ncr53c710 (behind dino) on a b180,
> so
> 	* no hw pb with disk,
> 	* no sw pb with nc53c710 Jame's driver,
> 	 (even thought less sure, as make me noticed Mike:
> 		on b180, 53c710 is behind dino i.e. gsc pci bus bridge, 
> 		right?
> 		on c110 and d380, this 53c710 is behind LASI (afaik just a 
> 		vlsi assembly and no bus bridge)
> 		so could be also a pb with 53c710 when married with gsc?)

You should never listen to Zick.  53c710 is always part of Lasi on PA
machines.  There's a discrete 53c700 on pre-Lasi machines.  There is
never a 53c710 behind Dino.  Dino has a serial port, a ps/2 port, and a
pci host bridge.

> 	* most probably the pb is well in sg list management in ccio (afaik 
> 	not used by dino)

Wrong.  sg list management is used by PCI devices behind Dino as well as
by GSC devices.

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Subject: Re: [parisc-linux] Re: CCIO dma io_command and related io_tlb format
	questions.
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Matthew Wilcox wrote:
> On Sat, Oct 14, 2006 at 12:59:11PM +0000, Joel Soete wrote:
>> but yes that's the primary question and:
>> 	* I encountered pbs with ncr53c720 and core io ncr53c710
>> 	 (different pb with each hba but same one-to-one on d380 and c110),
>> 	* but no pb with same disk (and its scsi chain: cable + terminator) 
>> 	with ncr53c710 (behind dino) on a b180,
>> so
>> 	* no hw pb with disk,
>> 	* no sw pb with nc53c710 Jame's driver,
>> 	 (even thought less sure, as make me noticed Mike:
>> 		on b180, 53c710 is behind dino i.e. gsc pci bus bridge, 
>> 		right?
>> 		on c110 and d380, this 53c710 is behind LASI (afaik just a 
>> 		vlsi assembly and no bus bridge)
>> 		so could be also a pb with 53c710 when married with gsc?)
> 
> You should never listen to Zick.
Don't blame Mike, it's my mistake I would have to check my ioscan before mentioned this hypothesis
(Appologie Mike)

   53c710 is always part of Lasi on PA
> machines.  There's a discrete 53c700 on pre-Lasi machines.  There is
> never a 53c710 behind Dino.  Dino has a serial port, a ps/2 port, and a
> pci host bridge.
> 
ok my bad.

>> 	* most probably the pb is well in sg list management in ccio (afaik 
>> 	not used by dino)
> 
> Wrong.  sg list management is used by PCI devices behind Dino as well as
> by GSC devices.
> 
Yes and no: there is a big diff between b180 and c110/d380 arch about connectic between cpu and lasi in particular:
on b180 ioscan tel me (grab from hw db):

> :pa:F:F:F:-1:-1:4294967295:bc:root:::0:root:root:CLAIMED:BUS_NEXUS::0
> pa:pa:F:F:F:-1:-1:4294967295:bc:bus_converter:8:80 64 0 7 0 0 0 0 0 0 0 0 0 0 0 0 :1:root.bc:bc:CLAIMED:BUS_NEXUS:Pseudo Bus Converter:1
[snip]
> pa:core:F:F:F:-1:-1:4294967295:ba:core_adapter:8/16:3 240 128 75 0 0 129 0 0 0 0 0 0 0 0 0 :1:root.bc.bus_adapter:bus_adapter:CLAIMED:BUS_NEXUS:Core I/O Adapter:1
> core:wsio:F:T:F:-1:216:131072:ext_bus:CentIf:8/16/0:3 240 128 10 0 0 116 0 0 0 0 0 0 0 0 0 :2:root.bc.bus_adapter.CentIf:CentIf:CLAIMED:INTERFACE:Built-in Parallel Interface:2
> core:wsio:F:T:F:-1:66:0:audio:audio:8/16/1:3 244 128 10 0 0 123 0 0 0 0 0 0 0 0 0 :0:root.bc.bus_adapter.audio:audio:CLAIMED:INTERFACE:Built-in Audio:0
> core:wsio:F:T:F:-1:1:0:tty:asio0:8/16/4:3 240 0 138 0 0 140 0 1 0 0 0 99 9 0 2 :0:root.bc.bus_adapter.asio0:asio0:CLAIMED:INTERFACE:Built-in RS-232C:0
> core:wsio:F:F:F:0:0:65536:ext_bus:c720:8/16/5:3 240 128 138 0 0 130 0 153 0 1 0 77 65 0 2 :1:root.bc.bus_adapter.c720:c720:CLAIMED:INTERFACE:Built-in SCSI:1
> scsi:wsio:F:F:F:-1:-1:4294967295:target:tgt:8/16/5.7:0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 :2:root.bc.bus_adapter.c720.tgt:tgt:CLAIMED:DEVICE::1
> scsi:wsio:F:T:F:-1:203:94208:ctl:sctl:8/16/5.7.0:0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 :1:root.bc.bus_adapter.c720.tgt.sctl:sctl:CLAIMED:DEVICE:Initiator:1
> core:wsio:F:T:F:-1:159:0:ps2:ps2:8/16/7:3 240 0 138 0 0 132 0 0 0 0 0 110 5 0 2 :0:root.bc.bus_adapter.ps2:ps2:CLAIMED:INTERFACE:Built-in Keyboard/Mouse:0
> pa:wsio:F:F:F:-1:229:4294967295:graphics:graph3:8/24:1 96 0 138 0 0 133 0 1 0 0 0 104 38 0 2 :1:root.bc.graph3:graph3:CLAIMED:INTERFACE:Graphics:1
> pa:pa:F:F:F:-1:-1:4294967295:processor:processor:62:80 64 0 64 0 0 4 129 0 0 0 0 0 0 0 0 :0:root.processor:processor:CLAIMED:PROCESSOR:Processor:0
> pa:pa:F:F:F:-1:-1:4294967295:memory:memory:63:5 160 31 65 0 0 9 0 0 0 0 0 0 0 0 0 :0:root.memory:memory:CLAIMED:MEMORY:Memory:0
> 

so the cpu and ram seems to me connected directly to the root bus.

and the "core_adapter" (I guess lasi interface) is connected to the root bus (btw to cpu) through a bc named here Pseudo Bus 
Converter.

Otoh for c110 (e.g.)

> :pa:F:F:F:-1:-1:4294967295:bc:root:::0:root:root:CLAIMED:BUS_NEXUS::0
> pa:pa:F:F:F:-1:-1:4294967295:bc:bus_converter:8:88 7 8 76 0 0 11 80 0 0 0 0 0 0 0 0 :1:root.ccio:ccio:CLAIMED:BUS_NEXUS:I/O Adapter:1
[snip]
> pa:core:F:F:F:-1:-1:4294967295:ba:core_adapter:8/16:3 32 0 139 0 0 129 0 0 0 0 0 123 85 0 0 :0:root.ccio.bus_adapter:bus_adapter:CLAIMED:BUS_NEXUS:Core I/O Adapter:0
> core:wsio:F:T:F:-1:216:131072:ext_bus:CentIf:8/16/0:3 32 0 10 0 0 116 0 0 0 0 0 0 0 0 0 :2:root.ccio.bus_adapter.CentIf:CentIf:CLAIMED:INTERFACE:Built-in Parallel Interface:2
> core:wsio:F:T:F:-1:66:0:audio:audio:8/16/1:3 32 0 10 0 0 123 0 0 0 0 0 0 0 0 0 :0:root.ccio.bus_adapter.audio:audio:CLAIMED:INTERFACE:Built-in Audio:0
> core:wsio:F:T:F:-1:1:0:tty:asio0:8/16/4:3 32 0 138 0 0 140 0 0 0 0 0 100 121 0 2 :0:root.ccio.bus_adapter.asio0:asio0:CLAIMED:INTERFACE:Built-in RS-232C:0
> core:wsio:F:F:F:0:0:65536:ext_bus:c720:8/16/5:3 32 0 138 0 0 130 0 0 0 0 0 105 39 0 2 :1:root.ccio.bus_adapter.c720:c720:CLAIMED:INTERFACE:Built-in SCSI:1
> scsi:wsio:F:F:F:-1:-1:4294967295:target:tgt:8/16/5.5:0 0 2 2 0 0 0 0 255 242 66 246 235 229 217 91 :2:root.ccio.bus_adapter.c720.tgt:tgt:CLAIMED:DEVICE::1
> scsi:wsio:T:T:F:31:188:86016:disk:sdisk:8/16/5.5.0:0 0 2 2 0 0 0 0 255 242 66 246 235 229 217 91 :3:root.ccio.bus_adapter.c720.tgt.sdisk:sdisk:CLAIMED:DEVICE:Quantum VP32210:1
> scsi:wsio:F:F:F:-1:-1:4294967295:target:tgt:8/16/5.7:0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 :3:root.ccio.bus_adapter.c720.tgt:tgt:CLAIMED:DEVICE::1
> scsi:wsio:F:T:F:-1:203:94208:ctl:sctl:8/16/5.7.0:0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 :1:root.ccio.bus_adapter.c720.tgt.sctl:sctl:CLAIMED:DEVICE:Initiator:1
> core:wsio:F:T:F:-1:52:0:lan:lan2:8/16/6:3 32 0 138 0 0 138 0 0 0 0 0 91 253 0 2 :0:root.ccio.bus_adapter.lan2:lan2:CLAIMED:INTERFACE:Built-in LAN:0
> core:wsio:F:T:F:-1:159:0:ps2:ps2:8/16/7:3 32 0 138 0 0 132 0 0 0 0 0 110 57 0 2 :0:root.ccio.bus_adapter.ps2:ps2:CLAIMED:INTERFACE:Built-in Keyboard/Mouse:0
> core:wsio:F:F:F:0:0:0:pc:fdc:8/16/10:3 32 0 10 0 0 131 0 0 0 0 0 0 0 0 0 :0:root.ccio.bus_adapter.fdc:fdc:CLAIMED:INTERFACE:Built-in Floppy Drive:0
> pa:core:F:F:F:-1:-1:4294967295:ba:core_adapter:8/20:1 224 0 11 0 0 142 0 0 0 0 0 0 0 0 0 :1:root.ccio.bus_adapter:bus_adapter:CLAIMED:BUS_NEXUS:Core I/O Adapter:1
> core:wsio:F:T:F:-1:24:0:hil:hil:8/20/1:1 224 0 138 0 0 115 0 0 0 0 0 129 124 0 2 :0:root.ccio.bus_adapter.hil:hil:CLAIMED:INTERFACE:Built-in HIL:0
> core:wsio:F:T:F:-1:1:65536:tty:asio0:8/20/2:1 224 0 138 0 0 140 128 0 0 0 0 101 57 0 2 :1:root.ccio.bus_adapter.asio0:asio0:CLAIMED:INTERFACE:Built-in RS-232C:1
> core:eisa:F:F:F:-1:-1:4294967295:ba:eisa_adapter:8/20/5:1 224 0 11 0 0 144 0 0 0 0 0 0 0 0 0 :2:root.ccio.bus_adapter.eisa:eisa:CLAIMED:BUS_NEXUS:EISA Bus Adapter:2
> core:wsio:F:F:F:-1:-1:4294967295:unknown:unknown:8/20/5/1:0 0 0 0 :0:root.ccio.bus_adapter.eisa.unknown:unknown:CLAIMED:INTERFACE:ISA card #:0
> core:wsio:F:T:F:-1:76:0:sicl:sicl:8/20/5/2:0 0 0 0 :0:root.ccio.bus_adapter.eisa.sicl:sicl:CLAIMED:INTERFACE:ISA card #:0
> pa:pa:F:F:F:-1:-1:4294967295:bc:bus_converter:10:88 7 8 76 0 0 11 80 0 0 0 0 0 0 0 0 :2:root.ccio:ccio:CLAIMED:BUS_NEXUS:I/O Adapter:2
> pa:wsio:F:F:F:-1:229:4294967295:graphics:graph3:10/16:3 32 0 138 0 0 133 0 1 0 0 0 107 5 0 2 :0:root.ccio.graph3:graph3:CLAIMED:INTERFACE:Graphics:0
> pa:pa:F:F:F:-1:-1:4294967295:processor:processor:32:88 224 0 0 0 0 4 129 0 0 0 0 0 0 0 0 :0:root.processor:processor:CLAIMED:PROCESSOR:Processor:0
> pa:pa:F:F:F:-1:-1:4294967295:memory:memory:49:4 144 26 1 0 0 9 0 0 0 0 0 0 0 0 0 :0:root.memory:memory:CLAIMED:MEMORY:Memory:0

Here again cpu and ram are also connected directly connected to the root bus.

and otc the core_adapter (I always guess that's lasi interface) is connected to the root bus through ccio bc.

So here, I guess that software reflect this hw configuration and when a lasi module driver (let say e.g. 53c710) need some 
io resources it would forward the request to ccio module driver which would most probably have to use its own sg list 
management functions (like ccio_map_single(), ccio_unmap_single(), ccio_map_sg(), ccio_unmap_sg(), etc) which I called "sg 
list management in ccio".

Otc on b180 lasi module would better have to address there request to the "Pseudo Bus Converter", i.e. quasi directly.

So why/how the kernel on b180 would use those same functions (ccio_map_single(), ccio_unmap_single(), ccio_map_sg(), 
ccio_unmap_sg(), etc) to manage sg list of a non-exitent device???

What did I miss?

Thanks,
	Joel


> 
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On Fri, Oct 06, 2006 at 01:56:00AM +0200, Matthias Klose wrote:
> Can gcc-4.0-hppa64 and gcc-4.0 be dropped for etch?

I don't recall seeing any other opinions on this one: Yes

>  My current plan is
> to keep gcc-4.1-hppa64 and gcc-3.4-hppa64. we can drop gcc-3.4-hppa64
> as well, but will have to keep the other compilers from the GCC-3.4
> package anyway.

I'm pretty comfortable with gcc-4.1-hppa64 for kernel builds.
I haven't tested any kernels built in the past couple of weeks
but I know it worked for me in August.

thanks
grant


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On Sat, Oct 14, 2006 at 11:35:47PM +0000, Joel Soete wrote:
...
> So here, I guess that software reflect this hw configuration and when a 
> lasi module driver (let say e.g. 53c710) need some io resources it would 
> forward the request to ccio module driver which would most probably have to 
> use its own sg list management functions (like ccio_map_single(), 
> ccio_unmap_single(), ccio_map_sg(), ccio_unmap_sg(), etc) which I called 
> "sg list management in ccio".

This is correct for C/K/D/R class machines which have U2/Uturn chip.

> Otc on b180 lasi module would better have to address there request to the 
> "Pseudo Bus Converter", i.e. quasi directly.

"Pseudo" means "fake". Ie the "Pseudo bus converter" just a place holder
in the HW path on B-class machines and not a real piece of HW.

> So why/how the kernel on b180 would use those same functions 
> (ccio_map_single(), ccio_unmap_single(), ccio_map_sg(), ccio_unmap_sg(), 
> etc) to manage sg list of a non-exitent device???

See arch/parisc/kernel/pci-dma.c for B180 DMA mapping functions.

> What did I miss?

You missed where/how dma_ops gets assigned.
Find that and I think you'll understand one more bit of the puzzle.

grant
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Subject: Re: [parisc-linux] Re: CCIO dma io_command and related io_tlb format
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On Tue, Oct 17, 2006 at 07:43:19PM +0200, Andrew Gaylard wrote:
>    Why do we truncate the memory like this?
>    My 4GB box is now "missing" 512M.
> 

the top 1/16 of physical memory is F-space for PDC and IO. there
are other reservations too.

it seems fairly logical that you can't fit 4GB of memory and anything
else in a 32bit number.
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Subject: [parisc-linux] Re: CCIO dma io_command and related io_tlb format
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On Mon, Oct 16, 2006 at 01:51:27PM +0200, Joel Soete wrote:
...
>     but it seems that at in the history num_physpages (now ram size in bytes)
>     was well the physical number of page:
...
>     nowaday num_physpages is bytes so the comparision is eronous?
>     (compare bytes against page number)

Where did you get the idea num_physpages is in bytes?

These two examples suggest it's counting PAGE_SIZE pages :

mm/slab.c:      if (num_physpages > (32 << 20) >> PAGE_SHIFT)
mm/swap.c:      unsigned long megs = num_physpages >> (20 - PAGE_SHIFT);


>     the same way in:
>     iov_order = get_order(iova_space_size << PAGE_SHIFT);
> 
>     iova_space_size << PAGE_SHIFT == iova_space_size * 2^PAGE_SHIFT
>                                   == iova_space_size * PAGE_SIZE
> 
>     made sense when iova_space_size was a number of pages,

Look at get_order() then you'll understand why the "<< PAGE_SHIFT".
iov_order is being set to log2(iova_space_size)+1.

grant
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With a 64bit Kernel (git head):

c3000:/home/cvs# modprobe nfs
FATAL: Error inserting nfs (/lib/modules/2.6.19-rc2-pa0/kernel/fs/nfs/nfs.ko): Invalid argument

dmesg says:
nfs: Global Offset Table overflow (used 1068, allowed 1023)


In the source code arch/parisc/kernel/module.c I found:

/* Maximum number of GOT entries. We use a long displacement ldd from
 * the bottom of the table, which has a maximum signed displacement of
 * 0x3fff; however, since we're only going forward, this becomes
 * 0x1fff, and thus, since each GOT entry is 8 bytes long we can have
 * at most 1023 entries */
#define MAX_GOTS        1023

Since I don't have any real idea about GOT and modules in general:
Isn't it possible to increase this number for 64bit kernels ?

Helge
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Subject: Re: [parisc-linux] 64bit kernel & nfs module: Global Offset Table overflow (used 1068, allowed 1023)
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On Wed, Oct 18, 2006 at 10:03:11PM +0200, Helge Deller wrote:
> With a 64bit Kernel (git head):
> 
> c3000:/home/cvs# modprobe nfs
> FATAL: Error inserting nfs (/lib/modules/2.6.19-rc2-pa0/kernel/fs/nfs/nfs.ko): Invalid argument
> 
> dmesg says:
> nfs: Global Offset Table overflow (used 1068, allowed 1023)
> 
> 
> In the source code arch/parisc/kernel/module.c I found:
> 
> /* Maximum number of GOT entries. We use a long displacement ldd from
>  * the bottom of the table, which has a maximum signed displacement of
>  * 0x3fff; however, since we're only going forward, this becomes
>  * 0x1fff, and thus, since each GOT entry is 8 bytes long we can have
>  * at most 1023 entries */
> #define MAX_GOTS        1023
> 
> Since I don't have any real idea about GOT and modules in general:
> Isn't it possible to increase this number for 64bit kernels ?

We'd need to make the GOT register point 0x2000 above where it currently
does.  Then we could use a signed +0x1fff / -0x2000 offset.

I have no idea how to make this happen.



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Subject: [parisc-linux] Re: CCIO dma io_command and related io_tlb format
	questions.
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Grant Grundler wrote:
> On Fri, Oct 20, 2006 at 12:04:47PM +0000, Joel Soete wrote:
>> mmm offhand wasn't there limits in ccio page size like in ia64 sba comments:
>>> /*
>>> ** The zx1 IOC supports 4/8/16/64KB page sizes (see TCNFG register)
> 
> I don't remember.
> ia64 sba is the 3rd generation IO controller.
> U2 (ccio) is the first generation.
> Sorry, I'm not interested in comparing them.
> 
no pb,

>>> Uhm....sounds reasonable to me. All I know is I believe the existing
>>> code use of chain_id is correct.
>>>
>> Just come back here shortly: the computed values with my hw config (256Mb 
>> and 2 ccio) are
>>> Found U2 at 0xfff88000
>>> ccio_ioc_init() hpa 0x00008000 mem 256Mb IOV 128Mb (27 bits)
>>>  base 10740000
>>> ccio_ioc_init() res_size 0x1000
>>>  chainid_shift 0x13
>>>  chainid_mask 0x7f80000
> 
> This looks correct.
> 
>>> Found U2 at 0xfff8a000
>>> ccio_ioc_init() hpa 0x0000a000 mem 256Mb IOV 128Mb (27 bits)
>>>  base 10780000
>>> ccio_ioc_init() res_size 0x1000
>>>  chainid_shift 0x13
>>>  chainid_mask 0x7f80000
>> otoh, applying this other formula [io_chain_id_mask = (~(CHAINID_SIZE -1)); 
>> with CHAINID_SIZE = (1UL << ioc->chainid_shift)], I got:
>>>  chainid_mask 0xfff80000
> 
> This second chainid_mask is 13 bits wide.
mmm sorry how do you compute this wide value?

> Remember that the mask can only be 8 bits wide for ccio.
> 

Btw I just discover an interesting comment in rope.h
> /*
> ** IOC supports 4/8/16/64KB page sizes (see TCNFG register)
> ** It's safer (avoid memory corruption) to keep DMA page mappings
> ** equivalently sized to VM PAGE_SIZE.
> **
[snip]
> **
> ** PAGE_SIZE could be greater than IOVP_SIZE. But not the inverse.
> */

and specialy:
 > ** It's safer (avoid memory corruption) to keep DMA page mappings
 > ** equivalently sized to VM PAGE_SIZE.

which was related to the original question I didn't reach to explain better.

So even if I don't understand why, we have to limits the number of iotlb entries to 256 (without doc I just accept it).
but in term to 'avoid memory corruption' why don't we limit the iova_space_size to 256 * IOVP_SIZE?

Many thanks,
	Joel
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On Fri, Oct 20, 2006 at 05:18:28PM +0000, Joel Soete wrote:
> >>> chainid_mask 0xfff80000
> >
> >This second chainid_mask is 13 bits wide.
> mmm sorry how do you compute this wide value?

Count the number of contiguous bits set to 1.
bit 31 to bit 19 is 13 bits.

> Btw I just discover an interesting comment in rope.h
> >/*
> >** IOC supports 4/8/16/64KB page sizes (see TCNFG register)
> >** It's safer (avoid memory corruption) to keep DMA page mappings
> >** equivalently sized to VM PAGE_SIZE.
> >**
> [snip]
> >**
> >** PAGE_SIZE could be greater than IOVP_SIZE. But not the inverse.
> >*/
> 
> and specialy:
> > ** It's safer (avoid memory corruption) to keep DMA page mappings
> > ** equivalently sized to VM PAGE_SIZE.
> 
> which was related to the original question I didn't reach to explain better.

The "avoid memory corruption" refers to the fact the we are likely
to map *more* address space than the device actually will DMA to.
If the device is doing DMA to 4K and we map 64k, than means there
is 60k more DMA address space the device can write to than it needs
permission to. The trade-off is between efficiency in creating
DMA mappings (reducing the number of mappings) and how much
address space we actually use.

> So even if I don't understand why, we have to limits the number of iotlb 
> entries to 256 (without doc I just accept it).

No. The number of IO TLB entries is implemented in HW.
The SW (e.g. ccio) only controls the number IO Pdir entries and
thus the total amount to DMA that can be mapped at the one time.

The size of a page (as seen from IO) is just much simpler to manage
when it's the same size of a page as seen by the CPU.
I need a really good reason to make things more complex.
And in this case I don't have a reason. I just want to enable
someone else to experiment if they have time or reason to do so.

grant
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Subject: [parisc-linux] Re: CCIO dma io_command and related io_tlb format
	questions.
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Grant Grundler wrote:
> On Fri, Oct 20, 2006 at 05:18:28PM +0000, Joel Soete wrote:
>>>>> chainid_mask 0xfff80000
>>> This second chainid_mask is 13 bits wide.
>> mmm sorry how do you compute this wide value?
> 
> Count the number of contiguous bits set to 1.
> bit 31 to bit 19 is 13 bits.
> 
Ah thanks (one more stuff in my dico ;-) )

>> Btw I just discover an interesting comment in rope.h
>>> /*
>>> ** IOC supports 4/8/16/64KB page sizes (see TCNFG register)
>>> ** It's safer (avoid memory corruption) to keep DMA page mappings
>>> ** equivalently sized to VM PAGE_SIZE.
>>> **
>> [snip]
>>> **
>>> ** PAGE_SIZE could be greater than IOVP_SIZE. But not the inverse.
>>> */
>> and specialy:
>>> ** It's safer (avoid memory corruption) to keep DMA page mappings
>>> ** equivalently sized to VM PAGE_SIZE.
>> which was related to the original question I didn't reach to explain better.
> 
> The "avoid memory corruption" refers to the fact the we are likely
> to map *more* address space than the device actually will DMA to.
> If the device is doing DMA to 4K and we map 64k, than means there
> is 60k more DMA address space the device can write to than it needs
> permission to.
Exactely my understanding ...

> The trade-off is between efficiency in creating
> DMA mappings (reducing the number of mappings) and how much
> address space we actually use.
>
... too ;-)

>> So even if I don't understand why, we have to limits the number of iotlb 
>> entries to 256 (without doc I just accept it).
> 
> No. The number of IO TLB entries is implemented in HW.
> The SW (e.g. ccio) only controls the number IO Pdir entries and
> thus the total amount to DMA that can be mapped at the one time.
> 
> The size of a page (as seen from IO) is just much simpler to manage
> when it's the same size of a page as seen by the CPU.
> I need a really good reason to make things more complex.
> And in this case I don't have a reason. I just want to enable
> someone else to experiment if they have time or reason to do so.
> 
I didn't mean to make more complex?

But the confusion may be came that I took a comment in sba code to explain somthing which weems to me strange in ccio code?

Or my english is to bad or I missed the meaning of this hunk:

	iova_space_size = (num_physpages << PAGE_SHIFT) / count_parisc_driver(&ccio_driver)

   means simply that we equaly balance all my ram between ioc then
   [in my config 256MB / 2 ccio bc == 128MB]

	(assuming it >= 1MB and < then 1GB)

	iov_order = get_order(iova_space_size << PAGE_SHIFT);

         /* iova_space_size is now bytes, not pages */
         iova_space_size = 1 << (iov_order + PAGE_SHIFT);

   we compute just a new value so that  "iova space is log2() in size."
   [in my config 128MB]

   then we compute a pdir_size, reserve pdir_base and the same for res_size and res_map according to IOVP_SIZE.

   and finaly what I certainly missunderstand:

	ioc->chainid_shift = get_order(iova_space_size) + PAGE_SHIFT - CCIO_CHAINID_SHIFT;

   i.e. if I translate in terms of power 2:
	chain_size = iova_space_size / 256 [ in my config 128Mb / 256 = 512k]

   and my understanding of seting io_chain_id_mask = CCIO_MASK << chainid_shift
   was to configure ccio to use chain_size page size (and not IOVP_SIZE because it would resulting to much io tlb entry)?

   what seems to be confirmed elsewhere by:

> static CCIO_INLINE void
> ccio_clear_io_tlb(struct ioc *ioc, dma_addr_t iovp, size_t byte_cnt)
> {
>         u32 chain_size = 1 << ioc->chainid_shift;
> 
>         iovp &= IOVP_MASK;      /* clear offset bits, just want pagenum */
>         byte_cnt += chain_size;
> 
>         while(byte_cnt > chain_size) {
>                 WRITE_U32(CMD_TLB_PURGE | iovp, &ioc->ioc_regs->io_command);
>                 iovp += chain_size;
>                 byte_cnt -= chain_size;
>         }
> }

and nowhere else chainid_shift is used in sg list managment, only IOVP_[SHIFT,SIZE].

so either somewhere I learn sg manager that actual iovp became 512k (but seems to be break 2 sba advises: iovp_shift > 
PAGE_SIZE, DMA page mappings not equivalently sized to VM PAGE_SIZE)
or i save IOVP_SIZE (my preference) but recompute iova_space_size and all related values to setup ccio?

Or I just have to wait public ccio doc to better understand how this hw works ;-)

Thanks for your patience,
	Joel

> grant
> 
> 
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Subject: [parisc-linux] [PATCH] PA-RISC: Fix bogus warnings from modpost
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parisc and parisc64 seem to name sections a little differently from other
targets.  parisc64 gives spurious warnings like:

WARNING: drivers/net/dummy.o - Section mismatch: reference to .init.text:dummy_setup from .data.rel.ro between '.LC1' (at offset 0x0) and '.LC6'

and parisc gives spurious warnings like:

WARNING: drivers/net/dummy.o - Section mismatch: reference to .init.text:dummy_setup from .rodata.cst4 between '.LC1' (at offset 0x0) and '.LC6'

Given the other comments in modpost.c, it seems that the best solution
is to move rodata down to the 'match at start of name' section and add
.data.rel.ro to the 'match entire name' section.

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 4127796..582b58f 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -910,7 +910,7 @@ static int init_section_ref_ok(const cha
 		".opd",   /* see comment [OPD] at exit_section_ref_ok() */
 		".toc1",  /* used by ppc64 */
 		".stab",
-		".rodata",
+		".data.rel.ro", /* used by parisc64 */
 		".text.lock",
 		"__bug_table", /* used by powerpc for BUG() */
 		".pci_fixup_header",
@@ -929,6 +929,7 @@ static int init_section_ref_ok(const cha
 		".altinstructions",
 		".eh_frame",
 		".debug",
+		".rodata",
 		NULL
 	};
 	/* part of section name */
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Subject: [parisc-linux] Re: CCIO dma io_command and related io_tlb format
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On Fri, Oct 20, 2006 at 12:04:47PM +0000, Joel Soete wrote:
> mmm offhand wasn't there limits in ccio page size like in ia64 sba comments:
> >/*
> >** The zx1 IOC supports 4/8/16/64KB page sizes (see TCNFG register)

I don't remember.
ia64 sba is the 3rd generation IO controller.
U2 (ccio) is the first generation.
Sorry, I'm not interested in comparing them.

> >Uhm....sounds reasonable to me. All I know is I believe the existing
> >code use of chain_id is correct.
> >
> Just come back here shortly: the computed values with my hw config (256Mb 
> and 2 ccio) are
> > Found U2 at 0xfff88000
> > ccio_ioc_init() hpa 0x00008000 mem 256Mb IOV 128Mb (27 bits)
> >  base 10740000
> > ccio_ioc_init() res_size 0x1000
> >  chainid_shift 0x13
> >  chainid_mask 0x7f80000

This looks correct.

> > Found U2 at 0xfff8a000
> > ccio_ioc_init() hpa 0x0000a000 mem 256Mb IOV 128Mb (27 bits)
> >  base 10780000
> > ccio_ioc_init() res_size 0x1000
> >  chainid_shift 0x13
> >  chainid_mask 0x7f80000
> 
> otoh, applying this other formula [io_chain_id_mask = (~(CHAINID_SIZE -1)); 
> with CHAINID_SIZE = (1UL << ioc->chainid_shift)], I got:
> >  chainid_mask 0xfff80000

This second chainid_mask is 13 bits wide.
Remember that the mask can only be 8 bits wide for ccio.

grant
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On Fri, Oct 20, 2006 at 09:50:59AM -0600, Grant Grundler wrote:
> On Fri, Oct 20, 2006 at 12:04:47PM +0000, Joel Soete wrote:
> > mmm offhand wasn't there limits in ccio page size like in ia64 sba comments:
> > >/*
> > >** The zx1 IOC supports 4/8/16/64KB page sizes (see TCNFG register)
> 
> I don't remember.
> ia64 sba is the 3rd generation IO controller.
> U2 (ccio) is the first generation.
> Sorry, I'm not interested in comparing them.

Willy reminded me that Mongoose/WAX was the first.
He's correct of course.

grant
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On Sat, Oct 21, 2006 at 05:17:46PM +0000, Joel Soete wrote:
...
> Or I just have to wait public ccio doc to better understand how this hw 
> works ;-)

Sorry, I guess so. :(

Not unless someone at HP can look up a description of "Chain ID" and
related registers in the CCIO documentation and share a summarized
version of those.

grant
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From: Randy Dunlap <randy.dunlap@oracle.com>

Fix/change module_param permissions parameter from an init value
to a permission value.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
---
 drivers/parisc/sba_iommu.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.19-rc2-git8.orig/drivers/parisc/sba_iommu.c
+++ linux-2.6.19-rc2-git8/drivers/parisc/sba_iommu.c
@@ -109,7 +109,7 @@ static unsigned long piranha_bad_128k = 
 
 #ifdef SBA_AGP_SUPPORT
 static int sba_reserve_agpgart = 1;
-module_param(sba_reserve_agpgart, int, 1);
+module_param(sba_reserve_agpgart, int, 0444);
 MODULE_PARM_DESC(sba_reserve_agpgart, "Reserve half of IO pdir as AGPGART");
 #endif
 


---
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not default value

0 is debatable, 1 is certainly wrong.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---

 drivers/parisc/sba_iommu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -109,7 +109,7 @@ #endif /*CONFIG_AGP_PARISC*/
 
 #ifdef SBA_AGP_SUPPORT
 static int sba_reserve_agpgart = 1;
-module_param(sba_reserve_agpgart, int, 1);
+module_param(sba_reserve_agpgart, int, 0);
 MODULE_PARM_DESC(sba_reserve_agpgart, "Reserve half of IO pdir as AGPGART");
 #endif
 

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Subject: [parisc-linux] Git tree rebased
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So, as discussed previously [1], I've just rebased the git tree on top of
Linus' 2.6.19-rc4.  You can see our old history on the devel-2006-10-31
branch [2], but our shiny new history is on master, and conveniently at
the top for easy reading of what we haven't merged yet.

If your remotes file currently has a line in it like:

	Pull: refs/heads/master:refs/heads/origin

then you'll want to add the '+' at the beginning:

	Pull: +refs/heads/master:refs/heads/origin

otherwise git will refuse to update.  With the +, it will complain, but
do it anyway.


[1] http://lists.parisc-linux.org/pipermail/parisc-linux/2006-October/030326.html
[2] http://git.parisc-linux.org/?p=linux-2.6.git;a=shortlog;h=devel-2006-10-31
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On Tue, Oct 31, 2006 at 08:00:01AM -0700, Matthew Wilcox wrote:
> If your remotes file currently has a line in it like:
> 
> 	Pull: refs/heads/master:refs/heads/origin
> 
> then you'll want to add the '+' at the beginning:
> 
> 	Pull: +refs/heads/master:refs/heads/origin
> 
> otherwise git will refuse to update.  With the +, it will complain, but
> do it anyway.

As we've now learned, it's not that easy.  The problem is that all your
local repositories have a divergent branch of history from the one now
in the shared repo's master branch.  Here's a recovery guide.  Sorry for
all the inconvenience.

First, be sure your tree is clean before you pull.  ie git-diff returns
nothing.  Otherwise you'll be in even more pain than the rest of this.

Now, if you have no commits outstanding vs upstream
(git-log origin..master returns nothing), life is fairly easy.
After you put in the + above, you need to git-pull, then

git-checkout origin
git-branch -D master
git-checkout -b master

Now you can work as before.


If you have commits in your master branch, then we need to move them
over to the new origin branch.

git-fetch origin devel-2006-10-31:devel-2006-10-31
git-fetch origin
git-checkout -b new-master origin
for i in `git-rev-list devel-2006-10-31..master |tac`; do if ! git-cherry-pick -r $i; then sh; fi; done
# assuming the above goes OK
git-branch -D master
git-checkout -b master
git-branch -d new-master


Any more problems, please let me know.  I hadn't thought through all the
consequences of rebasing the current master branch.
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Matthew Wilcox wrote:
> On Wed, Nov 01, 2006 at 11:04:33AM +0000, Joel Soete wrote:
>> * refs/heads/origin: does not fast forward to branch 'master' of 
>> git://git.parisc-linux.org/git/linux-2.6;
>>   not updating.
>>
>> Any idea of what I missed?
> 
> It's THE BIT YOU JUST QUOTED!
> 
well ...
>>> If your remotes file currently has a line in it like:
>>>
trying so to translate your idea in non git expert you mean that file:
# find . -type f | xargs grep "refs/heads/master"
./.git/remotes/origin:Pull: refs/heads/master:refs/heads/origin
./.git/HEAD:ref: refs/heads/master

>>> 	Pull: refs/heads/master:refs/heads/origin
>>>
>>> then you'll want to add the '+' at the beginning:
>>>
>>> 	Pull: +refs/heads/master:refs/heads/origin
>>>
so my .git/remotes/origin looks like now:
URL: git://git.parisc-linux.org/git/linux-2.6.git
Pull: +refs/heads/master:refs/heads/origin
Pull: refs/heads/linus:refs/heads/linus
Pull: refs/heads/scsi:refs/heads/scsi

>>> otherwise git will refuse to update.  With the +, it will complain,
Ok it do something:
# git-pull 2>&1 | tee -a /var/logs/GitParisc26.log
remote: Generating pack...
remote: Done counting 1545 objects.
remote: Result has 1156 objects.
remote: Deltifying 1156 objects.
remote:  100% (1156/1156) done
Unpacking 1156 objects
remote: Total 1156, written 1156 (delta 947), reused 15 (delta 11)
* refs/heads/origin: does not fast forward to branch 'master' of git://git.parisc-linux.org/git/linux-2.6;
   forcing update.
* refs/heads/linus: fast forward to branch 'linus' of git://git.parisc-linux.org/git/linux-2.6
   from e80391500078b524083ba51c3df01bbaaecc94bb to ae99a78af33f00565a05dbbc6ca9b247fed002c5
Auto-following refs/tags/v2.6.19-rc4-pa0
Auto-following refs/tags/v2.6.19-rc4
remote: Generating pack...
remote: Done counting 2 objects.
remote: Deltifying 2 objects.
remote:  100% (2/2) done
remote: Total 2, written 2 (delta 0), reused 0 (delta 0)
Unpacking 2 objects
* refs/tags/v2.6.19-rc4-pa0: storing tag 'v2.6.19-rc4-pa0' of git://git.parisc-linux.org/git/linux-2.6
* refs/tags/v2.6.19-rc4: storing tag 'v2.6.19-rc4' of git://git.parisc-linux.org/git/linux-2.6
Trying really trivial in-index merge...
fatal: Merge requires file-level merging
Nope.
merge: warning: conflicts during merge
Merging HEAD with 1c5484420c0a451eafd30121fd1fcc62bd234f1e
Merging:
823bbec4f4c48113da0083fc8220d60748daf8ed PA-RISC: sparse fixes
1c5484420c0a451eafd30121fd1fcc62bd234f1e Enable CONFIG_LOCALVERSION_AUTO in defconfigs
found 1 common ancestor(s):
7059abedd2f04b68bd7e1a79c9c72f7aeee134c0 Linux 2.6.19-rc3
Auto-merging Makefile
CONFLICT (content): Merge conflict in Makefile
Auto-merging arch/ia64/ia32/ia32_signal.c
Auto-merging arch/parisc/configs/712_defconfig
Auto-merging arch/parisc/configs/a500_defconfig
Auto-merging arch/parisc/configs/b180_defconfig
Auto-merging arch/parisc/configs/c3000_defconfig
Auto-merging arch/parisc/defconfig
Auto-merging arch/x86_64/ia32/ia32_signal.c
Removing include/asm-i386/mach-visws/do_timer.h
Auto-merging include/linux/compat.h
Auto-merging kernel/compat.c
Automatic merge failed; fix conflicts and then commit the result.

 >>> but do it anyway.

root@sidh:/Develop/parisc-linux/parisc-2.6 # head Makefile
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 19
<<<<<<< HEAD/Makefile
EXTRAVERSION =-rc3-pa0
=======
EXTRAVERSION =-rc4
 >>>>>>> 1c5484420c0a451eafd30121fd1fcc62bd234f1e/Makefile
NAME=Avast! A bilge rat!


And now what am I supposed to do with this 'conflictual' file in my local git tree?

(I know what I have to do if I want to use this file to build the kernel but what's up for the next git-pull?)

Joel
> 
> 
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Subject: [parisc-linux] syncdma question (back to ccio drivers)
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Xref: news.gmane.org gmane.linux.ports.parisc:25365

Hello Grant,

In one of my test, I also activated CCIO_MAP_STATS and noticed that before 53c700 pb occured the ccio driver used a very few 
number of entries: may max 30 of severall 100 available?

This make me so suspected a pb of coherency and remember me another of your comment in sba:
         /* XXX REVISIT for 2.5 Linux - need syncdma for zero-copy support.
         ** For Astro based systems this isn't a big deal WRT performance.
         ** As long as 2.4 kernels copyin/copyout data from/to userspace,
         ** we don't need the syncdma. The issue here is I/O MMU cachelines
         ** are *not* coherent in all cases.  May be hwrev dependent.
         ** Need to investigate more.
         asm volatile("syncdma");
         */

Reading back pa11_acd text:
� Cache Coherent I/O
Two instructions (LOAD COHERENCE INDEX and SYNCHRONIZE DMA) have been added to enable cache coherent memory references by 
I/O modules. Previously, responsibility for cache coherence between the processor and I/O modules lay with software, which 
had to use a sequence of flush and purge operations to ensure coherence. While software cache coherence for I/O is still 
attractive in uniprocessor systems because of the lower hardware cost, hardware cache coherence for I/O has a relatively low 
incremental cost in multiprocessor systems.

� Uncacheable Memory
An optional U (Uncacheable) bit has been added to each data TLB entry which controls cache move-in for the corresponding 
page. When the U-bit is set, new lines must not be moved in to the data cache, although existing lines may remain resident 
in the cache. This forces all references to non-resident lines to cause transactions to memory and enables better support of 
industry standard I/O busses where byte and word transactions to memory are sometimes required to communicate with I/O devices.

Unfortunately later:

If implemented, the U (Uncacheable) bit is found in the data TLB entry associated with a page. Whether or not the U-bit is 
implemented, the state of this bit if implemented, whether the memory reference is virtual or absolute, and whether the 
reference is made from a page in the memory or I/O address spaces determine if the reference may be moved into the data 
cache. The detailed rules for moving references into the data cache are specified in "Data Cache Move-In" on page 3-21.

Software must set the U-bit associated with all pages in the I/O address space to 1. Referencing a page in the I/O address 
space for which the U-bit is 0 is an undefined operation.

Changing the state of the U-bit for a page has no effect on the data cache lines from that page which already exist in the 
cache. A page from the memory address space which has its U-bit set to 0 is called a cacheable page. Pages from the I/O 
address space and pages which have their U-bit set to 1 are called uncacheable pages. It is possible for data cache lines 
from an uncacheable page to exist in a data cache. This case may be caused by changing a cacheable page to uncacheable after 
references to this page were moved into the data cache.

So my first question is:
How/where could I find if U-bit is implemented on my systems?

p-l pacache.S rely on its implementation (while hpux does syncdma conditional to a global var: duno what? )

TIA,
	Joel

PS: by reference to this James'paper <http://www.linuxjournal.com/article/7104>, mmu virtualize physical memory addresses 
for the cpu and otoh iommu virtualize this same physical memory addresses for the io bus; so given a virtual page address 
for the cpu, it's impossible for lpa to help me to know if this page is a physical address of a page in IO address space (I 
mean above 0xF0000000 for 32 bit kernels and above 0xF1000000 00000000 for 64bit kernel)?

PS2: is there any way to grab a [id]tlb entry for a given virtual address (may be undocumented feature like the "bit graber" 
;-) ?)
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Subject: [parisc-linux] Re: syncdma question (back to ccio drivers)
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Xref: news.gmane.org gmane.linux.ports.parisc:25366

On Thu, Nov 02, 2006 at 10:11:02PM +0000, Joel Soete wrote:
> Hello Grant,
> 
> In one of my test, I also activated CCIO_MAP_STATS and noticed that before 
> 53c700 pb occured the ccio driver used a very few number of entries: may 
> max 30 of severall 100 available?

ok. that's not too surprising given drivers are only supposed to map
memory for DMA just before sending the DMA request to HW.

> This make me so suspected a pb of coherency and remember me another of your 
> comment in sba:
>         /* XXX REVISIT for 2.5 Linux - need syncdma for zero-copy support.
>         ** For Astro based systems this isn't a big deal WRT performance.
>         ** As long as 2.4 kernels copyin/copyout data from/to userspace,
>         ** we don't need the syncdma. The issue here is I/O MMU cachelines
>         ** are *not* coherent in all cases.  May be hwrev dependent.
>         ** Need to investigate more.
>         asm volatile("syncdma");
>         */

What makes you think this is a problem with IOMMU coherency?

> Reading back pa11_acd text:
...
> So my first question is:
> How/where could I find if U-bit is implemented on my systems?

I'm certain all PA 2.0 systems support U-bit.
I believe all PA 1.1 systems do too.
arch/parisc/kernel/pci-dma.c depends on it I think.

PDC might also tell us but I haven't looked the spec recently.

> p-l pacache.S rely on its implementation (while hpux does syncdma 
> conditional to a global var: duno what? )
> 
> TIA,
> 	Joel
> 
> PS: by reference to this James'paper 
> <http://www.linuxjournal.com/article/7104>, mmu virtualize physical memory 
> addresses for the cpu and otoh iommu virtualize this same physical memory 
> addresses for the io bus; so given a virtual page address for the cpu, it's 
> impossible for lpa to help me to know if this page is a physical address of 
> a page in IO address space (I mean above 0xF0000000 for 32 bit kernels and 
> above 0xF1000000 00000000 for 64bit kernel)?

lpa by itself won't work.
Also need to know the memory map of the system.

> PS2: is there any way to grab a [id]tlb entry for a given virtual address 
> (may be undocumented feature like the "bit graber" ;-) ?)

 I don't know. Probably but requires knowledge of how addresses
map to either I or D cache.

grant
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Xref: news.gmane.org gmane.linux.ports.parisc:25367

Hello Grant,

Grant Grundler wrote:
 > On Thu, Nov 02, 2006 at 10:11:02PM +0000, Joel Soete wrote:
 >> Hello Grant,
 >>
 >> In one of my test, I also activated CCIO_MAP_STATS and noticed that before 53c700 pb occured the ccio driver used a very 
few number of entries: may max 30 of severall 100 available?
 >
 > ok. that's not too surprising given drivers are only supposed to map
 > memory for DMA just before sending the DMA request to HW.
 >
 >> This make me so suspected a pb of coherency and remember me another of your comment in sba:
 >>         /* XXX REVISIT for 2.5 Linux - need syncdma for zero-copy support.
 >>         ** For Astro based systems this isn't a big deal WRT performance.
 >>         ** As long as 2.4 kernels copyin/copyout data from/to userspace,
 >>         ** we don't need the syncdma. The issue here is I/O MMU cachelines
 >>         ** are *not* coherent in all cases.  May be hwrev dependent.
 >>         ** Need to investigate more.
 >>         asm volatile("syncdma");
 >>         */
 >
 > What makes you think this is a problem with IOMMU coherency?
 >
Remember: 53c700 driver on b180 (don't use any ccio) works fine but the same 53c700 driver on c110/d380 failed sadely:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030202.html>

and according to James' comment:
<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030204.html>

this should be a pb in sg list management; not in 53c700 (because works fine without ccio) but well in ccio to which this 
53c700 driver has to address its io request, right?

In a first step, I so manage to backport all your sba job since the time those drivers looks like brotherhood:
around
<http://cvs.parisc-linux.org/linux-2.4/arch/parisc/kernel/sba_iommu.c?rev=1.26&view=markup>

This seems to help to improve ncr53c720 driver (not absolutely sure: run untar/rm loop only 1h while it failed after few min 
before, but not yet enough for me and more over it seems to break dino on the d380 additional nic, though) but if didn't 
seem to degrade 53c700 driver, it didn't improve it at all.

In a second step, I suspected specific stuff to ccio and specialy what doesn't seems to exist here in ccio:
the sba
     /* flush purges */
     READ_REG32(ioc->ioc_hpa+IOC_PCOM);

but without doc (not yet publicaly available) I couldn't go further in this investigation.

Let so assume that's ok.

Anyway something else could show a pb of synchronization: the driver perf which can be a bit improved by disabling 
CCIO_SEARCH_TIME as this comment said:
/*
  * CCIO_SEARCH_TIME can help measure how fast the bitmap search is.
  * impacts performance though - ditch it if you don't use it.
  */

If that make top stat completely false that mainly made 53c700 behaviour even worse: (with the same driver code and same up 
config) even only one untar/rm didn't reach to complete (iirc it didn't even finished untar) while it could at least 
complete 2 or 3 loop before.

This latest test make me though it could also be a pb of synchronization somewhere between ccio and 53c700 and may be a pb 
of cache?

 >> Reading back pa11_acd text:
 > ...
 >> So my first question is:
 >> How/where could I find if U-bit is implemented on my systems?
 >
 > I'm certain all PA 2.0 systems support U-bit.
 > I believe all PA 1.1 systems do too.
 > arch/parisc/kernel/pci-dma.c depends on it I think.
 >
 > PDC might also tell us but I haven't looked the spec recently.
 >
ok I will try to find out stuff.

 >> p-l pacache.S rely on its implementation (while hpux does syncdma conditional to a global var: duno what? )
 >>
 >> TIA,
 >>     Joel
 >>
 >> PS: by reference to this James'paper <http://www.linuxjournal.com/article/7104>, mmu virtualize physical memory 
addresses for the cpu and otoh iommu virtualize this same physical memory addresses for the io bus; so given a virtual page 
address for the cpu, it's impossible for lpa to help me to know if this page is a physical address of a page in IO address 
space (I mean above 0xF0000000 for 32 bit kernels and above 0xF1000000 00000000 for 64bit kernel)?
 >
 > lpa by itself won't work.
 > Also need to know the memory map of the system.
 >
 >> PS2: is there any way to grab a [id]tlb entry for a given virtual address (may be undocumented feature like the "bit 
graber" ;-) ?)
 >
 >  I don't know. Probably but requires knowledge of how addresses
 > map to either I or D cache.
 >
 > grant
 >
 >
Thanks,
     Joel

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Xref: news.gmane.org gmane.linux.ports.parisc:25368


Kyle's asked me to put together a set of patches for Linus, and here's a
list of the patches I'm intending to include.  I'd appreciate feedback if
there's anything that people don't feel is ready to go upstream yet.
I may well combine a few changesets if they happen to do something, take
it out, then put it back in again, for example.

commit 743eb36af4816ab78fad79bfa68e3d4cdd12696f
Author: Kyle McMartin <kyle@parisc-linux.org>
Date:   Sun Aug 13 22:19:53 2006 -0400

    Disallow RESOURCES_64BIT

commit 9d5cf02f00cce18072f5e4b1e10a4434beb9b422
Author: Helge Deller <deller@gmx.de>
Date:   Sat Oct 14 20:02:15 2006 +0200

            avoid compiler warnings when compiling 64bit

(portions of that one anyway, some bits aren't needed any more)

commit a563a4604c1d9d9d2952cfb1006dd0a10570a55e
Author: Helge Deller <deller@gmx.de>
Date:   Sat Oct 14 22:11:32 2006 +0200

        use BUILD_BUG_ON() and constify static array

commit 2e6dd5e77529c1b7d1f8bdf4bdd7e07cc60833cc
Author: Kyle McMartin <kyle@athena.road.mcmartin.ca>
Date:   Sun Oct 15 22:40:27 2006 -0400

    bloody printf fmt string warnings

(I might change the commit message ;-)

commit 7f4e3e4b954a2ed0467cae42fec52e7f8cb3511b
Author: Kyle McMartin <kyle@mako.i.cabal.ca>
Date:   Mon Oct 16 00:29:47 2006 -0400

    Reserve 1GB of space for vmalloc/tmpalias space on parisc64

commit 4b6e7aff55b30fae856fe58b9ccf430235ebddae
Author: Helge Deller <deller@gmx.de>
Date:   Sat Oct 14 22:10:44 2006 +0200

        show more memory information and memory layout at bootup as i386 does

commit 18292d9958132333df061fca631d74d91ddee9fc
Author: Kyle McMartin <kyle@mako.i.cabal.ca>
Date:   Mon Oct 16 20:34:00 2006 -0400

    Unbreak discontigmem configs

commit 2049c31ef50fd1b5ff569346ee53b057689a7bfd
Author: Helge Deller <deller@gmx.de>
Date:   Wed Oct 18 21:44:30 2006 +0200

        trivial: fix printk message, add missing ')'

commit b6f36d52c15c292bebf20e6af2f9234fd8dc99cc
Author: Matthew Wilcox <matthew@wil.cx>
Date:   Fri Oct 13 12:32:50 2006 -0600

    Delete arch/parisc/mm/kmap.c again

commit fc0c84fdb74ae0dda94ae54c7bb10d62cc8ffce8
Author: Matthew Wilcox <matthew@wil.cx>
Date:   Tue Oct 24 13:49:54 2006 -0600

    Fix integer/pointer warning

commit 1c390fb3ec8b9d3526e3b915c5c47ead21b7579a
Author: Ryan Bradetich <rbrad@j6000.(none)>
Date:   Thu Oct 26 01:27:18 2006 +0000

    Fix ccio_request_resource when CONFIG_IOMMU_CCIO is not defined.

commit 37a6195ce6a929b4bb4414aaad4a832ad0ad4bb7
Author: Matthew Wilcox <matthew@wil.cx>
Date:   Thu Oct 26 10:06:07 2006 -0600

    PA-RISC: sparse fixes

commit 1c5484420c0a451eafd30121fd1fcc62bd234f1e
Author: Kyle McMartin <kyle@athena.road.mcmartin.ca>
Date:   Mon Oct 30 11:42:24 2006 -0500

    Enable CONFIG_LOCALVERSION_AUTO in defconfigs

commit 51b7e5b02eb56d5560ecf89231f2e2be5ef2805e
Author:  <rbradetich@gmail.com>
Date:   Fri Nov 3 05:05:01 2006 +0000

    HPPB bus updates for E-Class systems.

commit 0ce7ad9bc32ed7ee90df315bae7f6a406cae997f
Author:  <rbradetich@gmail.com>
Date:   Fri Nov 3 05:38:39 2006 +0000

    Mux driver bug fix.

commit 4519e71625d9c2bd44f8db3b4b7e0bac722e39c9
Author:  <rbradetich@gmail.com>
Date:   Fri Nov 3 05:52:41 2006 +0000

    Mux driver updates.
    
commit 6f53c0827f4083c84afce220f07b420ab88d6d78
Author:  <rbrad@j6000.bradetich.net>
Date:   Fri Nov 3 06:34:16 2006 +0000

    Claim resources for the Mux driver.

commit 5575d19a9c5d2dcf0ec79b6eb74a772f552c741d
Author: Ryan Bradetich <rbradetich@gmail.com>
Date:   Sun Nov 5 01:21:44 2006 +0000

    Make the Serial Mux driver work as module.

commit e1782fb22d23a5daa1c6b1184fc6a6944bc51995
Author: Matthew Wilcox <matthew@wil.cx>
Date:   Sun Nov 5 15:24:48 2006 -0700

    PARISC: sparse fixes


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On Sun, Nov 05, 2006 at 11:50:45AM +0000, Joel Soete wrote:
..
> > What makes you think this is a problem with IOMMU coherency?
> >
> Remember: 53c700 driver on b180 (don't use any ccio) works fine but the 
> same 53c700 driver on c110/d380 failed sadely:
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030202.html>
> 
> and according to James' comment:
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030204.html>
> 
> this should be a pb in sg list management; not in 53c700 (because works 
> fine without ccio) but well in ccio to which this 53c700 driver has to 
> address its io request, right?

Ah ok. It doesn't have to be the SG list handling.
So what is wrong? I have no clue.


This might also be a write-posting problem with MMIO register writes.
The CCIO chip might be introducing enough delay to expose the problem.

My second guess is a coherency problem with "consistent" data.
Ie control data that is allocated with pci_alloc_consistent().
I find this unlikely but it's possible.

> In a first step, I so manage to backport all your sba job since the time 
> those drivers looks like brotherhood:
> around
> <http://cvs.parisc-linux.org/linux-2.4/arch/parisc/kernel/sba_iommu.c?rev=1.26&view=markup>

Those two driver do have alot in common. But the TLB replacement algorithms
are NOT the same. The IO Pdir has different coherency rules as well.
Unfortunately, I don't remember all the details.

> This seems to help to improve ncr53c720 driver (not absolutely sure: run 
> untar/rm loop only 1h while it failed after few min before, but not yet 
> enough for me and more over it seems to break dino on the d380 additional 
> nic, though) but if didn't seem to degrade 53c700 driver, it didn't improve 
> it at all.
> 
> In a second step, I suspected specific stuff to ccio and specialy what 
> doesn't seems to exist here in ccio:
> the sba
>     /* flush purges */
>     READ_REG32(ioc->ioc_hpa+IOC_PCOM);
> 
> but without doc (not yet publicaly available) I couldn't go further in this 
> investigation.

Yes, that's another difference. IIRC, SBA can flush a _range_ of TLB entries
and CCIO (Uturn/U2) can not.

> 
> Let so assume that's ok.
> 
> Anyway something else could show a pb of synchronization: the driver perf 
> which can be a bit improved by disabling CCIO_SEARCH_TIME as this comment 
> said:
> /*
>  * CCIO_SEARCH_TIME can help measure how fast the bitmap search is.
>  * impacts performance though - ditch it if you don't use it.
>  */
> 
> If that make top stat completely false

Sorry -ENOPARSE.

> that mainly made 53c700 behaviour 
> even worse: (with the same driver code and same up config) even only one 
> untar/rm didn't reach to complete (iirc it didn't even finished untar) 
> while it could at least complete 2 or 3 loop before.

Sounds like there is a race condition between asking for a mapping
and it's use. Enableing CCIO_SEARCH_TIME will just make that longer.
Maybe experiement with adding udelay(10) or udelay(100) in the
same code path to see what happens.

> This latest test make me though it could also be a pb of synchronization 
> somewhere between ccio and 53c700 and may be a pb of cache?
 
Maybe.

hth,
grant
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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: [parisc-linux] suppress led task for KittyHawk's LCD
Date: Sun, 12 Nov 2006 01:45:35 +0100
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This is a multi-part message in MIME format.

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Hi All,

I've noticed that the LCD on my K410 is filled at a constant rate with black characters.
After some investigation, it looked like the code updating the led status was filling the LCD.

I believe there is not led support on K class but I didn't checked.

The attached patch disable the led_task, which is updating the led status, for KittyHawk hardware.

Thanks for reviewing :)

  Guy


-- 
Guy Martin
Gentoo Linux - HPPA port Lead


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diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index 8dac2ba..29cb1fe 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -56,6 +56,7 @@ #include <asm/uaccess.h>
    relatively large amount of CPU time, some of the calculations can be 
    turned off with the following variables (controlled via procfs) */
 
+static int no_led = 0;
 static int led_type __read_mostly = -1;
 static unsigned char lastleds;	/* LED state from most recent update */
 static unsigned int led_heartbeat __read_mostly = 1;
@@ -65,7 +66,7 @@ static char lcd_text[32]          __read
 static char lcd_text_default[32]  __read_mostly;
 
 
-static struct workqueue_struct *led_wq;
+static struct workqueue_struct *led_wq = NULL;
 static void led_work_func(void *);
 static DECLARE_WORK(led_task, led_work_func, NULL);
 
@@ -134,6 +135,9 @@ static int start_task(void) 
 	/* Display the default text now */
 	if (led_type == LED_HASLCD) lcd_print( lcd_text_default );
 
+	/* There is no led support on KittyHawk */
+	if (no_led) return 0;
+
 	/* Create the work queue and queue the LED task */
 	led_wq = create_singlethread_workqueue("led_wq");	
 	queue_work(led_wq, &led_task);
@@ -695,6 +699,7 @@ int __init led_init(void)
 	case 0x58B:		/* KittyHawk DC2 100 (K200) */
 		printk(KERN_INFO "%s: KittyHawk-Machine (hversion 0x%x) found, "
 				"LED detection skipped.\n", __FILE__, CPU_HVERSION);
+		no_led = 1;	/* no led support on KittyHawk */
 		goto found;	/* use the preinitialized values of lcd_info */
 	}
 

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Subject: Re: [parisc-linux] suppress led task for KittyHawk's LCD
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On Sun, Nov 12, 2006 at 01:45:35AM +0100, Guy Martin wrote:
> I've noticed that the LCD on my K410 is filled at a constant rate with black characters.
> After some investigation, it looked like the code updating the led status was filling the LCD.
> 
> I believe there is not led support on K class but I didn't checked.
> 
> The attached patch disable the led_task, which is updating the led status, for KittyHawk hardware.

That's clearly the wrong solution.  The led_task is responsible for
updating both LEDs and LCDs.  It should be calling led_LCD_driver()
which should be putting the image of a beating heart on the LCD panel.

It would be great if you could do some more debugging and figure out
what's going on here.
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Hi Matthew,

As far as I understand the code, led_LCD_driver() is only in charge of updating the led status. The led being a true led or a char on the LCD.
I can't find any documentation stating that the LCD on the K410 supports those chars. It only displays CPU01234 depending on the number of CPU you have at boot time.
The update of the LCD text is done via lcd_print() which doesn't use led_LCD_driver(). It only uses a reference to it to check if the device is correctly initialized.

If you tell me that led_LCD_driver() is supposed to work and it should display the right leds character, then led_LCD_driver() is buggy and needs to be fixed. Currently each time it's called, a char of the LCD become black for each leds that need updating. It goes from left to right and starts from the bottom row and then occure at the top row a bit later. If you echo something to /proc/pdc/lcd, you'll see the text for a few and then being overwritten.


Also, I actually sent the wrong patch. With the current version of the driver, only the odd chars from the string you pass is written on the lcd.
You need to set the min_cmd_delay to 80t of fix this.

@@ -695,6 +699,8 @@ int __init led_init(void)
        case 0x58B:             /* KittyHawk DC2 100 (K200) */
                printk(KERN_INFO "%s: KittyHawk-Machine (hversion 0x%x) found, "
                                "LED detection skipped.\n", __FILE__, CPU_HVERSION);
+               lcd_info.min_cmd_delay = 80;
+               no_led = 1;     /* no led support on KittyHawk */
                goto found;     /* use the preinitialized values of lcd_info */
        }
 

Regards,
  Guy



On Sat, 11 Nov 2006 19:07:38 -0700
Matthew Wilcox <matthew@wil.cx> wrote:

> On Sun, Nov 12, 2006 at 01:45:35AM +0100, Guy Martin wrote:
> > I've noticed that the LCD on my K410 is filled at a constant rate with black characters.
> > After some investigation, it looked like the code updating the led status was filling the LCD.
> > 
> > I believe there is not led support on K class but I didn't checked.
> > 
> > The attached patch disable the led_task, which is updating the led status, for KittyHawk hardware.
> 
> That's clearly the wrong solution.  The led_task is responsible for
> updating both LEDs and LCDs.  It should be calling led_LCD_driver()
> which should be putting the image of a beating heart on the LCD panel.
> 
> It would be great if you could do some more debugging and figure out
> what's going on here.

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Hi all,


I'm experiencing an issue with the LASI 53c700 SCSI driver. It looks similar to the problem found by Joel earlier :
http://lists.parisc-linux.org/pipermail/parisc-linux/2006-July/029506.html
http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030202.html

My plextor cd burner works fine on an x86 and on that K410 with HP-UX or linux 2.4.

This is how 2.4 detects it :
scsi3: (4:0) Synchronous at offset 8, period 100ns
  Vendor: PLEXTOR   Model: CD-R   PX-R820T   Rev: 1.08
  Type:   CD-ROM                             ANSI SCSI revision: 02

And this is how 2.6 detects it :
[42949430.090000]   Vendor: PLEXTOR   Model: CD-R   PX-R820T   Rev: 1.08
[42949430.150000]   Type:   CD-ROM                             ANSI SCSI revision: 02
[42949430.170000]  target2:0:4: Beginning Domain Validation
[42949430.180000]  target2:0:4: asynchronous
[42949430.190000]  target2:0:4: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 8)
[42949430.200000]  target2:0:4: Domain Validation skipping write tests
[42949430.210000]  target2:0:4: Ending Domain Validation


The main difference seems that 2.4 detects and syncronous drive while 2.6 detects an async one.

Full 2.4 dmesg : https://www.tuxicoman.be/temp/dmesg-2.4-53c700
Full 2.6 dmesg : https://www.tuxicoman.be/temp/dmesg-2.6-53c700
2.6 kernel config : https://www.tuxicoman.be/temp/k410-2.6.18.2-pa0.config

On my 2.6 kernel, when you try to mount it, you get the those error messages in loop.

[  297.870000] scsi2: (4:0) phase mismatch at 01e8, phase IO BSY DATA_IN
[  297.870000] scsi2: Bus Reset detected, executing command 4f7bb840, slot 4ff50520, dsp 001c01e8[01e8]
[  297.870000]  failing command because of reset, slot 4ff50520, cmnd 4f7bb840
[  327.880000] sr 2:0:4:0: New error handler wants to abort command
[  327.880000] 	sr 2:0:4:0: 
[  327.880000]         command: cdb[0]=0x0: 00 00 00 00 00 00
[  327.880000] scsi2: Bus Reset detected, executing command 4f7bb840, slot 4ff50520, dsp 001c0010[0010]
[  327.880000]  failing command because of reset, slot 4ff50520, cmnd 4f7bb840
[  327.890000] sr 2:0:4:0: New error handler wants BUS reset, cmd 4f7bb840
[  327.890000] 	sr 2:0:4:0: 
[  327.890000]         command: cdb[0]=0x0: 00 00 00 00 00 00
[  327.890000] scsi2: Bus Reset detected, executing command 00000000, slot 00000000, dsp 001c0010[0010]


As you can see in the dmesg, I have another CDROM drive on the same SCSI bus and this one works like a charm.



Please have a look at it and let me know if you need any other info.

Thanks,
  Guy
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On Sun, Nov 12, 2006 at 04:03:50PM +0100, Guy Martin wrote:
> This is how 2.4 detects it :
> scsi3: (4:0) Synchronous at offset 8, period 100ns
>   Vendor: PLEXTOR   Model: CD-R   PX-R820T   Rev: 1.08
>   Type:   CD-ROM                             ANSI SCSI revision: 02
> 
> And this is how 2.6 detects it :
> [42949430.090000]   Vendor: PLEXTOR   Model: CD-R   PX-R820T   Rev: 1.08
> [42949430.150000]   Type:   CD-ROM                             ANSI SCSI revision: 02
> [42949430.170000]  target2:0:4: Beginning Domain Validation
> [42949430.180000]  target2:0:4: asynchronous
> [42949430.190000]  target2:0:4: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 8)
> [42949430.200000]  target2:0:4: Domain Validation skipping write tests
> [42949430.210000]  target2:0:4: Ending Domain Validation
> 
> 
> The main difference seems that 2.4 detects and syncronous drive while 2.6 detects an async one.

Um, you're just confused by the debug output from the DV code.  First it
negotiates async, then it negotiates FAST-10.

> Full 2.4 dmesg : https://www.tuxicoman.be/temp/dmesg-2.4-53c700
> Full 2.6 dmesg : https://www.tuxicoman.be/temp/dmesg-2.6-53c700
> 2.6 kernel config : https://www.tuxicoman.be/temp/k410-2.6.18.2-pa0.config
> 
> On my 2.6 kernel, when you try to mount it, you get the those error messages in loop.
> 
> Please have a look at it and let me know if you need any other info.

Presumably at some point in 2.6, this device worked fine.  Any chance
you could bisect and figure out when it started failing?  I'd start with
looking at something in the 2.6.8 sort of timeframe.
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On Sun, 12 Nov 2006 12:14:37 -0700
Matthew Wilcox <matthew@wil.cx> wrote:

> > Please have a look at it and let me know if you need any other info.
> 
> Presumably at some point in 2.6, this device worked fine.  Any chance
> you could bisect and figure out when it started failing?  I'd start with
> looking at something in the 2.6.8 sort of timeframe.


I've tried from kernels since 2.6.8 and it looks like it breaks since 2.6.18.

The dmesg of the last working kernel is here :
https://www.tuxicoman.be/temp/dmesg-2.6.17-53c700

The dmesg of the non working one is here :
https://www.tuxicoman.be/temp/dmesg-2.6-53c700


According 2.6.18's changelog, it looks like a few fixes were merged in this release.

As usual, if you need any other info or even access to this box, let me know.

Cheers,
  Guy
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On 11/16/06, Anders Hanson <anders.hanson@home.se> wrote:
> I've recently got myself a HP J6700 and installed Debian testing with on
> it but have a small problem.
>
> After it had been running for couple of weeks it started do strange
> things and complained about scsi disks being offline and problem with
> irq handling.
> Now I can't even get it to boot up fully before it starts complaining.
>
> Anyone got any idea? I know it's not much to go on but I will try to
> gather more info when I manage to boot it and recover some logs :)

Bad hardware? Get a new disk and try again?

c.
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I've tried installing Debian Etch rc1 and yesterday's daily build on my
C160, and both fail.  The installation itself seems to work fine, but
when it boots after, it can't find the root partition.

I don't know if it's because the kernel doesn't have the SCSI driver I
need, or if I'm running into the issue listed on the errata:

Disk devices may change on reboot
  On systems with multiple diskcontrollers, the kernel/udev may assign
  a different device node on reboot of the system than was used during
  installation due to difference in load order of drivers.
  This can lead to failure to boot the system. In most cases this can be
  rectified changing the bootloader configuration and /etc/fstab,
  possibly using the rescue mode of the installer.

  Note however that this problem may occur again on subsequent boots.
  Fixing this issue has priority for the next release of Debian
  installer.

Is this something I should be reporting here, or to Debian?
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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] lockdep branch created
Date: Mon, 20 Nov 2006 14:39:24 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:25378


In keeping with the new usage policy, I've created a lockdep branch in the
parisc git repo for people to hack on until we can get CONFIG_LOCKDEP
working.  We need some code written to handle STACKTRACE_SUPPORT.
It shouldn't be too hard a project, but I've run out of time to look
at it.

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From: Adrian Bunk <bunk@stusta.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [2.6 patch] parisc: "extern inline" -> "static
	inline"
Date: Tue, 21 Nov 2006 21:34:56 +0100
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Cc: linux-kernel@vger.kernel.org,
 kyle@parisc-linux.org,
 parisc-linux@parisc-linux.org,
 matthew@wil.cx
To: Andrew Morton <akpm@osdl.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:25379

"extern inline" generates a warning with -Wmissing-prototypes and I'm 
currently working on getting the kernel cleaned up for adding this to 
the CFLAGS since it will help us to avoid a nasty class of runtime 
errors.

If there are places that really need a forced inline, __always_inline 
would be the correct solution.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Kyle McMartin <kyle@parisc-linux.org>

---

This patch was already sent on:
- 19 Aug 2006

 arch/parisc/lib/memcpy.c       |    4 +--
 include/asm-parisc/io.h        |    2 -
 include/asm-parisc/pci.h       |    2 -
 include/asm-parisc/pgtable.h   |   40 ++++++++++++++++-----------------
 include/asm-parisc/prefetch.h  |    4 +--
 include/asm-parisc/semaphore.h |   10 ++++----
 include/asm-parisc/tlbflush.h  |    3 --
 7 files changed, 32 insertions(+), 33 deletions(-)

--- linux-2.6.14-rc5-mm1-full/arch/parisc/lib/memcpy.c.old	2005-10-30 01:58:43.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/arch/parisc/lib/memcpy.c	2005-10-30 01:59:11.000000000 +0200
@@ -158,12 +158,12 @@
 #define stw(_s,_t,_o,_a,_e) 	def_store_insn(stw,"r",_s,_t,_o,_a,_e)
 
 #ifdef  CONFIG_PREFETCH
-extern inline void prefetch_src(const void *addr)
+static inline void prefetch_src(const void *addr)
 {
 	__asm__("ldw 0(" s_space ",%0), %%r0" : : "r" (addr));
 }
 
-extern inline void prefetch_dst(const void *addr)
+static inline void prefetch_dst(const void *addr)
 {
 	__asm__("ldd 0(" d_space ",%0), %%r0" : : "r" (addr));
 }
--- linux-2.6.14-rc5-mm1-full/include/asm-parisc/pci.h.old	2005-10-30 01:59:57.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/include/asm-parisc/pci.h	2005-10-30 02:00:01.000000000 +0200
@@ -193,7 +193,7 @@
 extern void pcibios_register_hba(struct pci_hba_data *);
 extern void pcibios_set_master(struct pci_dev *);
 #else
-extern inline void pcibios_register_hba(struct pci_hba_data *x)
+static inline void pcibios_register_hba(struct pci_hba_data *x)
 {
 }
 #endif
--- linux-2.6.14-rc5-mm1-full/include/asm-parisc/pgtable.h.old	2005-10-30 02:00:14.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/include/asm-parisc/pgtable.h	2005-10-30 02:00:18.000000000 +0200
@@ -316,31 +316,31 @@
  * setup: the pgd is never bad, and a pmd always exists (as it's folded
  * into the pgd entry)
  */
-extern inline int pgd_none(pgd_t pgd)		{ return 0; }
-extern inline int pgd_bad(pgd_t pgd)		{ return 0; }
-extern inline int pgd_present(pgd_t pgd)	{ return 1; }
-extern inline void pgd_clear(pgd_t * pgdp)	{ }
+static inline int pgd_none(pgd_t pgd)		{ return 0; }
+static inline int pgd_bad(pgd_t pgd)		{ return 0; }
+static inline int pgd_present(pgd_t pgd)	{ return 1; }
+static inline void pgd_clear(pgd_t * pgdp)	{ }
 #endif
 
 /*
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
  */
-extern inline int pte_read(pte_t pte)		{ return pte_val(pte) & _PAGE_READ; }
-extern inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
-extern inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
-extern inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_WRITE; }
-extern inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
-extern inline int pte_user(pte_t pte) 		{ return pte_val(pte) & _PAGE_USER; }
-
-extern inline pte_t pte_rdprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_READ; return pte; }
-extern inline pte_t pte_mkclean(pte_t pte)	{ pte_val(pte) &= ~_PAGE_DIRTY; return pte; }
-extern inline pte_t pte_mkold(pte_t pte)	{ pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }
-extern inline pte_t pte_wrprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_WRITE; return pte; }
-extern inline pte_t pte_mkread(pte_t pte)	{ pte_val(pte) |= _PAGE_READ; return pte; }
-extern inline pte_t pte_mkdirty(pte_t pte)	{ pte_val(pte) |= _PAGE_DIRTY; return pte; }
-extern inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
-extern inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) |= _PAGE_WRITE; return pte; }
+static inline int pte_read(pte_t pte)		{ return pte_val(pte) & _PAGE_READ; }
+static inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
+static inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
+static inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_WRITE; }
+static inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
+static inline int pte_user(pte_t pte) 		{ return pte_val(pte) & _PAGE_USER; }
+
+static inline pte_t pte_rdprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_READ; return pte; }
+static inline pte_t pte_mkclean(pte_t pte)	{ pte_val(pte) &= ~_PAGE_DIRTY; return pte; }
+static inline pte_t pte_mkold(pte_t pte)	{ pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }
+static inline pte_t pte_wrprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_WRITE; return pte; }
+static inline pte_t pte_mkread(pte_t pte)	{ pte_val(pte) |= _PAGE_READ; return pte; }
+static inline pte_t pte_mkdirty(pte_t pte)	{ pte_val(pte) |= _PAGE_DIRTY; return pte; }
+static inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
+static inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) |= _PAGE_WRITE; return pte; }
 
 /*
  * Conversion functions: convert a page and protection to a page entry,
@@ -368,7 +368,7 @@
 #define mk_pte_phys(physpage, pgprot) \
 ({ pte_t __pte; pte_val(__pte) = physpage + pgprot_val(pgprot); __pte; })
 
-extern inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 { pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot); return pte; }
 
 /* Permanent address of a page.  On parisc we don't have highmem. */
--- linux-2.6.14-rc5-mm1-full/include/asm-parisc/semaphore.h.old	2005-10-30 02:00:45.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/include/asm-parisc/semaphore.h	2005-10-30 02:00:51.000000000 +0200
@@ -58,7 +58,7 @@
 #define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
 #define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name,0)
 
-extern inline void sema_init (struct semaphore *sem, int val)
+static inline void sema_init (struct semaphore *sem, int val)
 {
 	*sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val);
 }
@@ -86,7 +86,7 @@
  * interrupts while we're messing with the semaphore.  Sorry.
  */
 
-extern __inline__ void down(struct semaphore * sem)
+static inline void down(struct semaphore * sem)
 {
 	might_sleep();
 	spin_lock_irq(&sem->sentry);
@@ -98,7 +98,7 @@
 	spin_unlock_irq(&sem->sentry);
 }
 
-extern __inline__ int down_interruptible(struct semaphore * sem)
+static inline int down_interruptible(struct semaphore * sem)
 {
 	int ret = 0;
 	might_sleep();
@@ -116,7 +116,7 @@
  * down_trylock returns 0 on success, 1 if we failed to get the lock.
  * May not sleep, but must preserve irq state
  */
-extern __inline__ int down_trylock(struct semaphore * sem)
+static inline int down_trylock(struct semaphore * sem)
 {
 	int flags, count;
 
@@ -132,7 +132,7 @@
  * Note! This is subtle. We jump to wake people up only if
  * the semaphore was negative (== somebody was waiting on it).
  */
-extern __inline__ void up(struct semaphore * sem)
+static inline void up(struct semaphore * sem)
 {
 	int flags;
 	spin_lock_irqsave(&sem->sentry, flags);
--- linux-2.6.14-rc5-mm1-full/include/asm-parisc/tlbflush.h.old	2005-10-30 02:01:00.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/include/asm-parisc/tlbflush.h	2005-10-30 02:01:06.000000000 +0200
@@ -42,7 +42,7 @@
 #endif
 }
 
-extern __inline__ void flush_tlb_pgtables(struct mm_struct *mm, unsigned long start, unsigned long end)
+static inline void flush_tlb_pgtables(struct mm_struct *mm, unsigned long start, unsigned long end)
 {
 }
  

-
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the body of a message to majordomo@vger.kernel.org
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--- linux-2.6.18-rc4-mm1/include/asm-parisc/io.h.old	2006-08-13 23:08:01.000000000 +0200
+++ linux-2.6.18-rc4-mm1/include/asm-parisc/io.h	2006-08-13 23:08:15.000000000 +0200
@@ -128,7 +128,7 @@
 /* Most machines react poorly to I/O-space being cacheable... Instead let's
  * define ioremap() in terms of ioremap_nocache().
  */
-extern inline void __iomem * ioremap(unsigned long offset, unsigned long size)
+static inline void __iomem * ioremap(unsigned long offset, unsigned long size)
 {
 	return __ioremap(offset, size, _PAGE_NO_CACHE);
 }
--- linux-2.6.18-rc4-mm1/include/asm-parisc/prefetch.h.old	2006-08-13 23:08:25.000000000 +0200
+++ linux-2.6.18-rc4-mm1/include/asm-parisc/prefetch.h	2006-08-13 23:08:34.000000000 +0200
@@ -19,7 +19,7 @@
 #ifdef CONFIG_PREFETCH
 
 #define ARCH_HAS_PREFETCH
-extern inline void prefetch(const void *addr)
+static inline void prefetch(const void *addr)
 {
 	__asm__("ldw 0(%0), %%r0" : : "r" (addr));
 }
@@ -27,7 +27,7 @@
 /* LDD is a PA2.0 addition. */
 #ifdef CONFIG_PA20
 #define ARCH_HAS_PREFETCHW
-extern inline void prefetchw(const void *addr)
+static inline void prefetchw(const void *addr)
 {
 	__asm__("ldd 0(%0), %%r0" : : "r" (addr));
 }
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From: Adrian Bunk <bunk@stusta.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [2.6 patch] arch/parisc/Makefile: remove GCC_VERSION
Date: Tue, 21 Nov 2006 21:37:34 +0100
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Cc: Kyle McMartin <kyle@mcmartin.ca>,
 linux-kernel@vger.kernel.org,
 Sam Ravnborg <sam@ravnborg.org>,
 parisc-linux@parisc-linux.org
To: Andrew Morton <akpm@osdl.org>
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This patch removes the usage of GCC_VERSION from arch/parisc/Makefile.

There are no functional changes, it simply makes it a bit shorter (and 
removes the last instance of GCC_VERSION in the kernel).

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>

---

This patch was already sent on:
- 19 Aug 2006
- 12 Jan 2006

--- linux-2.6.15-mm3-hppa/arch/parisc/Makefile.old	2006-01-12 03:11:45.000000000 +0100
+++ linux-2.6.15-mm3-hppa/arch/parisc/Makefile	2006-01-12 03:12:35.000000000 +0100
@@ -35,12 +35,8 @@
 
 OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
 
-GCC_VERSION     := $(call cc-version)
-ifneq ($(shell if [ -z $(GCC_VERSION) ] ; then echo "bad"; fi ;),)
-$(error Sorry, couldn't find ($(cc-version)).)
-endif
-ifneq ($(shell if [ $(GCC_VERSION) -lt 0303 ] ; then echo "bad"; fi ;),)
-$(error Sorry, your compiler is too old ($(GCC_VERSION)).  GCC v3.3 or above is required.)
+ifneq ($(shell if [ $(call cc-version) -lt 0303 ] ; then echo "bad"; fi ;),)
+$(error Sorry, your compiler is too old.  GCC v3.3 or above is required.)
 endif
 
 cflags-y	:= -pipe

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From: Guy Martin <gmsoft@tuxicoman.be>
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Subject: Re: [parisc-linux] K410 SCSI 53c700 issue with PLEXTOR PX-R820T
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To: Matthew Wilcox <matthew@wil.cx>
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Hi Matthew,

Some more detail on this issue.
This burner still works at commit 6391a11375de5e2bb1eb8481e54619761dc65d9f but breaks at commit 0f13fc09db68de92585558984bff1c51b87db72f.

There are one or two commits in between those two but the scsi driver doesn't work at all.

For reference, this is the log for those changes :

commit 0f13fc09db68de92585558984bff1c51b87db72f
Author: James Bottomley <James.Bottomley@steeleye.com>
Date:   Thu Jun 29 13:02:11 2006 -0400

    [SCSI] 53c700: fix breakage caused by the autosense update
    
    A bit of a brown paper bag issue.  The previous patch to remove the soon
    to be ripped out fields that were used in autosense actually broke the
    driver.  This patch fixes it and has been tested (honestly).
    
    Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

commit 4311fa60b0d1cb5a2f62f646978294bca7b46cbb
Author: Dave Jones <davej@redhat.com>
Date:   Thu Jun 22 15:46:15 2006 -0400

    [SCSI] kmalloc argument switcheroo in recent 53c700 change.
    
    On Wed, Jun 21, 2006 at 07:00:34PM +0000, Linux Kernel wrote:
     > commit 67d59dfdeb21df2c16dcd478b66177e91178ecd0
     > tree ae85703651d81740f4a6cd398f9dd4d6aabe6a2f
     > parent 6db874fbdbedba5e15e76cc03b42f52ea70338c0
     > author James Bottomley <James.Bottomley@steeleye.com> Wed, 14 Jun 2006 07:31:19 -0500
     > committer James Bottomley <jejb@mulgrave.il.steeleye.com> Tue, 20 Jun 2006 05:34:01 -0500
     >
     > [SCSI] 53c700: remove reliance on deprecated cmnd fields
     >  ...
     >
     > +        SDp->hostdata = kmalloc(GFP_KERNEL, sizeof(struct NCR_700_sense));
     > +
     > +        if (!SDp->hostdata)
     > +                return -ENOMEM;
    
    "I'll take reversed arguments for $100 please Alex".
    
    Signed-off-by: Dave Jones <davej@redhat.com>
    Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

commit 67d59dfdeb21df2c16dcd478b66177e91178ecd0
Author: James Bottomley <James.Bottomley@steeleye.com>
Date:   Tue Jun 13 21:31:19 2006 -0500

    [SCSI] 53c700: remove reliance on deprecated cmnd fields
    
    This one's quite tricky.  The 53c700 uses the now deprecated fields of
    the command structure for saving the prior command when it does
    autosense.  To fix this, we have to add extra fields to the LUN to
    accommodate a copy of the real command.
    
    Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

commit 6391a11375de5e2bb1eb8481e54619761dc65d9f



Regards,
  Guy

On Sun, 12 Nov 2006 12:14:37 -0700
Matthew Wilcox <matthew@wil.cx> wrote:

> On Sun, Nov 12, 2006 at 04:03:50PM +0100, Guy Martin wrote:
> > This is how 2.4 detects it :
> > scsi3: (4:0) Synchronous at offset 8, period 100ns
> >   Vendor: PLEXTOR   Model: CD-R   PX-R820T   Rev: 1.08
> >   Type:   CD-ROM                             ANSI SCSI revision: 02
> > 
> > And this is how 2.6 detects it :
> > [42949430.090000]   Vendor: PLEXTOR   Model: CD-R   PX-R820T   Rev: 1.08
> > [42949430.150000]   Type:   CD-ROM                             ANSI SCSI revision: 02
> > [42949430.170000]  target2:0:4: Beginning Domain Validation
> > [42949430.180000]  target2:0:4: asynchronous
> > [42949430.190000]  target2:0:4: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 8)
> > [42949430.200000]  target2:0:4: Domain Validation skipping write tests
> > [42949430.210000]  target2:0:4: Ending Domain Validation
> > 
> > 
> > The main difference seems that 2.4 detects and syncronous drive while 2.6 detects an async one.
> 
> Um, you're just confused by the debug output from the DV code.  First it
> negotiates async, then it negotiates FAST-10.
> 
> > Full 2.4 dmesg : https://www.tuxicoman.be/temp/dmesg-2.4-53c700
> > Full 2.6 dmesg : https://www.tuxicoman.be/temp/dmesg-2.6-53c700
> > 2.6 kernel config : https://www.tuxicoman.be/temp/k410-2.6.18.2-pa0.config
> > 
> > On my 2.6 kernel, when you try to mount it, you get the those error messages in loop.
> > 
> > Please have a look at it and let me know if you need any other info.
> 
> Presumably at some point in 2.6, this device worked fine.  Any chance
> you could bisect and figure out when it started failing?  I'd start with
> looking at something in the 2.6.8 sort of timeframe.
> _______________________________________________
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> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

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Subject: Re: [parisc-linux] K410 SCSI 53c700 issue with PLEXTOR PX-R820T
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On Mon, Nov 27, 2006 at 11:58:32AM +0100, Guy Martin wrote:
> Some more detail on this issue.
> This burner still works at commit 6391a11375de5e2bb1eb8481e54619761dc65d9f but breaks at commit 0f13fc09db68de92585558984bff1c51b87db72f.

Thanks for narrowing it down so much!

> commit 0f13fc09db68de92585558984bff1c51b87db72f
> Author: James Bottomley <James.Bottomley@steeleye.com>
> Date:   Thu Jun 29 13:02:11 2006 -0400
> 
>     [SCSI] 53c700: fix breakage caused by the autosense update
>     
>     A bit of a brown paper bag issue.  The previous patch to remove the soon
>     to be ripped out fields that were used in autosense actually broke the
>     driver.  This patch fixes it and has been tested (honestly).

If James says he tested it, I believe him.  I *think* we're in the
situation where it works on machines without an IOMMU and breaks on
machines with an IOMMU.  Joel, Guy, do I have that right?
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Matthew,

In only tested on my K410. I'm clueless about IOMMU besides what I can read about it on wikipedia :)

I can give it a try on my b180l but I don't know if there is a point and if it has the right connector.

As James said, it looks like the size of some commands is not negociated properly or so.
http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030204.html

Is there a way I make this negociation more verbose ?

However, unlike Joel's problem, those errors start to appear when I try to mount a cd or even before that when udevd starts and not after some untar/rm iterations. I sould mention that if I eject the media while mount is stuck, it aborts.

  Guy


On Mon, 27 Nov 2006 08:37:14 -0700
Matthew Wilcox <matthew@wil.cx> wrote:

> On Mon, Nov 27, 2006 at 11:58:32AM +0100, Guy Martin wrote:
> > Some more detail on this issue.
> > This burner still works at commit 6391a11375de5e2bb1eb8481e54619761dc65d9f but breaks at commit 0f13fc09db68de92585558984bff1c51b87db72f.
> 
> Thanks for narrowing it down so much!
> 
> > commit 0f13fc09db68de92585558984bff1c51b87db72f
> > Author: James Bottomley <James.Bottomley@steeleye.com>
> > Date:   Thu Jun 29 13:02:11 2006 -0400
> > 
> >     [SCSI] 53c700: fix breakage caused by the autosense update
> >     
> >     A bit of a brown paper bag issue.  The previous patch to remove the soon
> >     to be ripped out fields that were used in autosense actually broke the
> >     driver.  This patch fixes it and has been tested (honestly).
> 
> If James says he tested it, I believe him.  I *think* we're in the
> situation where it works on machines without an IOMMU and breaks on
> machines with an IOMMU.  Joel, Guy, do I have that right?
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Subject: Re: [parisc-linux] Re: [2.6 patch] parisc: "extern inline" -> "static
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> The parisc point intentionally switched to "extern inline" at one
> point and unless what jda wrote is now incorrect, I'm not inclined
> to change it.

The handling of "extern inline" is changing in GCC 4.3 to the C99 specified
behavior.  The attribute gnu_inline on an inline declaration results in the
old GNU C89 inline behavior even in the ISO C99 mode.

The C99 behavior allows the function being inlined to be externally
called.  As a result, conflicts will occur if the function is defined in
a header included by multiple objects.  So, code that assumed the previous
GNU treatment unfortunately needs to change.

The main difference between "static inline" and "extern inline" in the
old GNU treatment was that with "extern inline" the function was never
compiled on its own, even if its address was explicitly referenced.
With "static inline", the function would be compiled on its own in some
circumstances.  So, this is mostly a code size issue.

More details are present in extend.texi in the GCC head.  This has also
been discussed on the gcc list a few times.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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On Fri, Dec 01, 2006 at 12:49:08PM +0100, Adrian Bunk wrote:
> This patch removes the usage of GCC_VERSION from arch/parisc/Makefile.
> 
> There are no functional changes, it simply makes it a bit shorter (and 
> removes the last instance of GCC_VERSION in the kernel).

Thanks!
I've committed a variant of this to git://git.parisc-linux.org/git/linux-2.6.git
I didn't test the failure case - only that it doesn't trigger with
my current gcc 4.x compilers.

I expect Kyle will push parisc tree to linus in the near future.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>


diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 9b7e424..760567a 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -35,12 +35,8 @@ FINAL_LD=$(CROSS_COMPILE)ld --warn-commo
 
 OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
 
-GCC_VERSION     := $(call cc-version)
-ifneq ($(shell if [ -z $(GCC_VERSION) ] ; then echo "bad"; fi ;),)
-$(error Sorry, couldn't find ($(cc-version)).)
-endif
-ifneq ($(shell if [ $(GCC_VERSION) -lt 0303 ] ; then echo "bad"; fi ;),)
-$(error Sorry, your compiler is too old ($(GCC_VERSION)).  GCC v3.3 or above is required.)
+ifneq ($(call cc-ifversion, -lt, 0303, "bad"),)
+$(error Sorry, GCC v3.3 or above is required.)
 endif
 
 cflags-y	:= -pipe
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Matthew Wilcox wrote:
> On Fri, Dec 01, 2006 at 03:58:00PM +0000, Joel Soete wrote:
>> Sorry no yet a fix for my pb :_(
> 
> It'd be useful to know if your problem was introduced at the same time.
> Can you try the same git revisions that Guy tried and let us know if
> that's the same commit that broke your machine?
> 
mmm reading back this pr <http://lists.parisc-linux.org/pipermail/parisc-linux/2006-July/029506.html>
my pb seems to be already in early 2.6.18-rc1-pa1 and most probably in 2.6.17 (according to my ps at this time).

Eventhought I have the filling that there was always pbs with this driver on my c110 
(<http://lists.parisc-linux.org/pipermail/parisc-linux/2004-September/024736.html>),
I am ready to grab what Guy tried;
may be can you send me the git cmdl parameters to grab exactely the same stuff.

Joel

PS: the d380 I have for testing have to go back to production, sorry it couldn't help us for a while :_(

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From: Joel Soete <soete.joel@scarlet.be>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] K410 SCSI 53c700 issue with PLEXTOR PX-R820T
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Sorry for this auto followup but during am i writing previous line I was testing a older vmlinux-2.6.16-pa10 and this pb was 
showing his face after a bit more then 30min of loop test:
scsi1: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
scsi1: Bus Reset detected, executing command 2ca36620, slot 2fd18520, dsp 001c81e8[01e8]
  failing command because of reset, slot 2fd18520, cmnd 2ca36620
  failing command because of reset, slot 2fd1864c, cmnd 2ca368e0
  failing command because of reset, slot 2fd18778, cmnd 2ca36200
  failing command because of reset, slot 2fd188a4, cmnd 149c6320

but:
   - one time (after about 45 min)
   - and the test can continue (while in 2.6.18-rc1-pa1 it finished always by panicing
     because ccio finished by being overloaded.

Joel



Joel Soete wrote:
> 
> 
> Matthew Wilcox wrote:
>> On Fri, Dec 01, 2006 at 03:58:00PM +0000, Joel Soete wrote:
>>> Sorry no yet a fix for my pb :_(
>>
>> It'd be useful to know if your problem was introduced at the same time.
>> Can you try the same git revisions that Guy tried and let us know if
>> that's the same commit that broke your machine?
>>
> mmm reading back this pr 
> <http://lists.parisc-linux.org/pipermail/parisc-linux/2006-July/029506.html> 
> 
> my pb seems to be already in early 2.6.18-rc1-pa1 and most probably in 
> 2.6.17 (according to my ps at this time).
> 
> Eventhought I have the filling that there was always pbs with this 
> driver on my c110 
> (<http://lists.parisc-linux.org/pipermail/parisc-linux/2004-September/024736.html>), 
> 
> I am ready to grab what Guy tried;
> may be can you send me the git cmdl parameters to grab exactely the same 
> stuff.
> 
> Joel
> 
> PS: the d380 I have for testing have to go back to production, sorry it 
> couldn't help us for a while :_(
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 
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Subject: Re: [parisc-linux] K410 SCSI 53c700 issue with PLEXTOR PX-R820T
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Joel,

The git commands I used may not be the best but it works :)

You have to find out the commit you want with git log or anything else.
Then do "git branch <branchname> <commit#>" to create a new branch at that commit. Then you can "git checkout <branchname>" to have your workdir reflect that branch.
Maybe it's more appropriate to do this with tags but I don't think it's possible to checkout on tags.


  Guy


On Fri, 01 Dec 2006 22:42:11 +0000
Joel Soete <soete.joel@scarlet.be> wrote:

> 
> 
> Matthew Wilcox wrote:
> > On Fri, Dec 01, 2006 at 03:58:00PM +0000, Joel Soete wrote:
> >> Sorry no yet a fix for my pb :_(
> > 
> > It'd be useful to know if your problem was introduced at the same time.
> > Can you try the same git revisions that Guy tried and let us know if
> > that's the same commit that broke your machine?
> > 
> mmm reading back this pr <http://lists.parisc-linux.org/pipermail/parisc-linux/2006-July/029506.html>
> my pb seems to be already in early 2.6.18-rc1-pa1 and most probably in 2.6.17 (according to my ps at this time).
> 
> Eventhought I have the filling that there was always pbs with this driver on my c110 
> (<http://lists.parisc-linux.org/pipermail/parisc-linux/2004-September/024736.html>),
> I am ready to grab what Guy tried;
> may be can you send me the git cmdl parameters to grab exactely the same stuff.
> 
> Joel
> 
> PS: the d380 I have for testing have to go back to production, sorry it couldn't help us for a while :_(
> 


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Subject: [parisc-linux] [PATCH] parisc: pdcpat remove extra brackets
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Hello,

	This patch removes extra brackets.

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>

 include/asm-parisc/pdcpat.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- linux-2.6.19-rc6-mm2-a/include/asm-parisc/pdcpat.h	2006-11-16 05:03:40.000000000 +0100
+++ linux-2.6.19-rc6-mm2-b/include/asm-parisc/pdcpat.h	2006-11-30 01:09:47.000000000 +0100
@@ -250,7 +250,7 @@ struct pdc_pat_pd_addr_map_entry {
 #define PAT_GET_ENTITY(value)	(((value) >> 56) & 0xffUL)
 #define PAT_GET_DVI(value)	(((value) >> 48) & 0xffUL)
 #define PAT_GET_IOC(value)	(((value) >> 40) & 0xffUL)
-#define PAT_GET_MOD_PAGES(value)(((value) & 0xffffffUL)
+#define PAT_GET_MOD_PAGES(value) ((value) & 0xffffffUL)
 
 
 /*
@@ -330,7 +330,7 @@ extern int pdc_pat;     /* arch/parisc/k
 #define PAT_GET_ENTITY(value)	(((value) >> 56) & 0xffUL)
 #define PAT_GET_DVI(value)	(((value) >> 48) & 0xffUL)
 #define PAT_GET_IOC(value)	(((value) >> 40) & 0xffUL)
-#define PAT_GET_MOD_PAGES(value)(((value) & 0xffffffUL)
+#define PAT_GET_MOD_PAGES(value) ((value) & 0xffffffUL)
 
 #endif /* __ASSEMBLY__ */
 


-- 
Regards,

	Mariusz Kozlowski
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Subject: Re: [parisc-linux] K410 SCSI 53c700 issue with PLEXTOR PX-R820T
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Guy Martin wrote:
> Matthew,
> 
> In only tested on my K410. I'm clueless about IOMMU besides what I can read about it on wikipedia :)
> 
> I can give it a try on my b180l but I don't know if there is a point and if it has the right connector.
> 
Yes connectors and even hba are afaik the same (into LASI), the diff stand in this Uturn/U2 bus converter/adapter (ioscan 
name it bc, mstm ba?) on your K model (as on my D) and not on B180L+.

> As James said, it looks like the size of some commands is not negociated properly or so.
> http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030204.html
> 
> Is there a way I make this negociation more verbose ?
> 
> However, unlike Joel's problem, those errors start to appear when I try to mount a cd or even before that when udevd starts and not after some untar/rm iterations. I sould mention that if I eject the media while mount is stuck, it aborts.
> 
>   Guy
> 
> 
> On Mon, 27 Nov 2006 08:37:14 -0700
> Matthew Wilcox <matthew@wil.cx> wrote:
> 
>> On Mon, Nov 27, 2006 at 11:58:32AM +0100, Guy Martin wrote:
>>> Some more detail on this issue.
>>> This burner still works at commit 6391a11375de5e2bb1eb8481e54619761dc65d9f but breaks at commit 0f13fc09db68de92585558984bff1c51b87db72f.
>> Thanks for narrowing it down so much!
>>
>>> commit 0f13fc09db68de92585558984bff1c51b87db72f
>>> Author: James Bottomley <James.Bottomley@steeleye.com>
>>> Date:   Thu Jun 29 13:02:11 2006 -0400
>>>
>>>     [SCSI] 53c700: fix breakage caused by the autosense update
>>>     
>>>     A bit of a brown paper bag issue.  The previous patch to remove the soon
>>>     to be ripped out fields that were used in autosense actually broke the
>>>     driver.  This patch fixes it and has been tested (honestly).
>> If James says he tested it, I believe him.  I *think* we're in the
>> situation where it works on machines without an IOMMU and breaks on
>> machines with an IOMMU.  Joel, Guy, do I have that right?
> 
Well my test case is totaly different as far as I just tested se-scsi disk.
And I don't own any PLEXTOR, so only GMSoft test on its b180 could confirm us if it's same kind of pb.

The only thing of what I still sure is that the pb occure to me when I tried to stress (high io rate) this driver.

Joel

> 
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Actually, your analysis isn't quite correct.  This is the real problem

On Thu, 2006-11-30 at 10:18 +0100, Guy Martin wrote:
> [42949427.280000] 53c700: scsi2, command sr 2:0:2:0: 
> [42949427.280000]         command: cdb[0]=0x43: 43 00 00 00 00 00 00 00 0c 40

READ_TOC(10) command (i.e. 10 byte command)

> [42949427.280000]  scatter block 0: move 12[0900000c] from 0x1d48e00
> [42949427.280000]  SETTING 001c0528 to 90080000
> [42949427.280000]  script, patching short field MessageCount at 30 to 0xe000001
> [42949427.280000]  script, patching ID field Device_ID at 0 to 0x41040000
> [42949427.280000]  script, patching CommandAddress at 121 to 0x1d508f8
> [42949427.280000]  script, patching short field CommandCount at 120 to 0xa00000a
> [42949427.280000]  script, patching SGScriptStartAddress at 191 to 0x1c0520
> [42949427.280000]  script, patching SGScriptStartAddress at 207 to 0x1c0520
> [42949427.290000] scsi2: istat 01 sstat0 00 dstat 84 dsp 012a[001c04a8] dsps 0x401
> [42949427.290000] scsi2: (2:0) ====>SCRIPT INTERRUPT<====
> [42949427.290000]   COMMAND COMPLETE, status=02

Returns Check Condition, causing the driver to send out a REQUEST_SENSE
command, which it begins here using the same slot:

> [42949427.290000]  script, patching short field MessageCount at 30 to 0xe000006
> [42949427.290000]  script, patching ID field Device_ID at 0 to 0x41040000
> [42949427.290000]  script, patching CommandAddress at 121 to 0x1d58c20
> [42949427.290000]  script, patching short field CommandCount at 120 to 0xa00000a

This patches the command length to ten bytes, but REQUEST_SENSE is only
a 6 byte command ... it's clearly inherited the length parameter from
the previous command.

> [42949427.290000]  script, patching SGScriptStartAddress at 191 to 0x1c0520
> [42949427.290000]  script, patching SGScriptStartAddress at 207 to 0x1c0520
> [42949427.290000] scsi2: Issuing saved command slot 4f6b8520, cmd 4f23b8c0      
> [42949427.300000] scsi2: istat 09 sstat0 00 dstat 84 dsp 00ba[001c02e8] dsps 0x250
> [42949427.300000] scsi2: (2:0) ====>SCRIPT INTERRUPT<====
> [42949427.300000] scsi2 (2:0): message before command phase: 01 03 01 3b 08 
> [42949427.300000] Attempting to resume at 1c02e8
> [42949427.320000] scsi2: istat 0a sstat0 c0 dstat 00 dsp 007a[001c01e8] dsps 0x1d58c20
> [42949427.320000] scsi2: (2:0) phase mismatch at 01e8, phase IO BSY DATA_IN

And here we get a phase mismatch in the command phase because the drive
transitions to data phase after six bytes and the driver still thinks it
has another four to send.

I'd have the maintainer shot ... he clearly forgot to set up the command
length for auto request sense.

James


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Subject: Re: [parisc-linux] K410 SCSI 53c700 issue with PLEXTOR PX-R820T
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On Thu, 2006-11-30 at 12:17 -0500, James Bottomley wrote:
> And here we get a phase mismatch in the command phase because the drive
> transitions to data phase after six bytes and the driver still thinks it
> has another four to send.
> 
> I'd have the maintainer shot ... he clearly forgot to set up the command
> length for auto request sense.

Try this and see if it fixes the problem

James

diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index 562432d..9aabb64 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -622,8 +622,10 @@ #endif
 			dma_unmap_single(hostdata->dev, slot->dma_handle, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
 			/* restore the old result if the request sense was
 			 * successful */
-			if(result == 0)
+			if (result == 0)
 				result = cmnd[7];
+			/* restore the original length */
+			SCp->cmd_len = cmnd[8];
 		} else
 			NCR_700_unmap(hostdata, SCp, slot);
 
@@ -1007,6 +1009,9 @@ #endif
 				 * of the command */
 				cmnd[6] = NCR_700_INTERNAL_SENSE_MAGIC;
 				cmnd[7] = hostdata->status[0];
+				cmnd[8] = SCp->cmd_len;
+				SCp->cmd_len = 6; /* command length for 
+						   * REQUEST_SENSE */
 				slot->pCmd = dma_map_single(hostdata->dev, cmnd, MAX_COMMAND_SIZE, DMA_TO_DEVICE);
 				slot->dma_handle = dma_map_single(hostdata->dev, SCp->sense_buffer, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
 				slot->SG[0].ins = bS_to_host(SCRIPT_MOVE_DATA_IN | sizeof(SCp->sense_buffer));


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Hi James,

This is working fine ! Thanks a lot !

I was able to mount a cd without any pb.

Cheers,
  Guy

On Thu, 30 Nov 2006 13:13:46 -0500
James Bottomley <James.Bottomley@SteelEye.com> wrote:

> On Thu, 2006-11-30 at 12:17 -0500, James Bottomley wrote:
> > And here we get a phase mismatch in the command phase because the drive
> > transitions to data phase after six bytes and the driver still thinks it
> > has another four to send.
> > 
> > I'd have the maintainer shot ... he clearly forgot to set up the command
> > length for auto request sense.
> 
> Try this and see if it fixes the problem
> 
> James

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Xref: news.gmane.org gmane.linux.ports.parisc:25394

"extern inline" generates a warning with -Wmissing-prototypes and I'm 
currently working on getting the kernel cleaned up for adding this to 
the CFLAGS since it will help us to avoid a nasty class of runtime 
errors.

If there are places that really need a forced inline, __always_inline 
would be the correct solution.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Kyle McMartin <kyle@parisc-linux.org>

---

This patch was already sent on:
- 21 Nov 2006
- 19 Aug 2006

 arch/parisc/lib/memcpy.c       |    4 +--
 include/asm-parisc/io.h        |    2 -
 include/asm-parisc/pci.h       |    2 -
 include/asm-parisc/pgtable.h   |   40 ++++++++++++++++-----------------
 include/asm-parisc/prefetch.h  |    4 +--
 include/asm-parisc/semaphore.h |   10 ++++----
 include/asm-parisc/tlbflush.h  |    3 --
 7 files changed, 32 insertions(+), 33 deletions(-)

--- linux-2.6.14-rc5-mm1-full/arch/parisc/lib/memcpy.c.old	2005-10-30 01:58:43.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/arch/parisc/lib/memcpy.c	2005-10-30 01:59:11.000000000 +0200
@@ -158,12 +158,12 @@
 #define stw(_s,_t,_o,_a,_e) 	def_store_insn(stw,"r",_s,_t,_o,_a,_e)
 
 #ifdef  CONFIG_PREFETCH
-extern inline void prefetch_src(const void *addr)
+static inline void prefetch_src(const void *addr)
 {
 	__asm__("ldw 0(" s_space ",%0), %%r0" : : "r" (addr));
 }
 
-extern inline void prefetch_dst(const void *addr)
+static inline void prefetch_dst(const void *addr)
 {
 	__asm__("ldd 0(" d_space ",%0), %%r0" : : "r" (addr));
 }
--- linux-2.6.14-rc5-mm1-full/include/asm-parisc/pci.h.old	2005-10-30 01:59:57.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/include/asm-parisc/pci.h	2005-10-30 02:00:01.000000000 +0200
@@ -193,7 +193,7 @@
 extern void pcibios_register_hba(struct pci_hba_data *);
 extern void pcibios_set_master(struct pci_dev *);
 #else
-extern inline void pcibios_register_hba(struct pci_hba_data *x)
+static inline void pcibios_register_hba(struct pci_hba_data *x)
 {
 }
 #endif
--- linux-2.6.14-rc5-mm1-full/include/asm-parisc/pgtable.h.old	2005-10-30 02:00:14.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/include/asm-parisc/pgtable.h	2005-10-30 02:00:18.000000000 +0200
@@ -316,31 +316,31 @@
  * setup: the pgd is never bad, and a pmd always exists (as it's folded
  * into the pgd entry)
  */
-extern inline int pgd_none(pgd_t pgd)		{ return 0; }
-extern inline int pgd_bad(pgd_t pgd)		{ return 0; }
-extern inline int pgd_present(pgd_t pgd)	{ return 1; }
-extern inline void pgd_clear(pgd_t * pgdp)	{ }
+static inline int pgd_none(pgd_t pgd)		{ return 0; }
+static inline int pgd_bad(pgd_t pgd)		{ return 0; }
+static inline int pgd_present(pgd_t pgd)	{ return 1; }
+static inline void pgd_clear(pgd_t * pgdp)	{ }
 #endif
 
 /*
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
  */
-extern inline int pte_read(pte_t pte)		{ return pte_val(pte) & _PAGE_READ; }
-extern inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
-extern inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
-extern inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_WRITE; }
-extern inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
-extern inline int pte_user(pte_t pte) 		{ return pte_val(pte) & _PAGE_USER; }
-
-extern inline pte_t pte_rdprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_READ; return pte; }
-extern inline pte_t pte_mkclean(pte_t pte)	{ pte_val(pte) &= ~_PAGE_DIRTY; return pte; }
-extern inline pte_t pte_mkold(pte_t pte)	{ pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }
-extern inline pte_t pte_wrprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_WRITE; return pte; }
-extern inline pte_t pte_mkread(pte_t pte)	{ pte_val(pte) |= _PAGE_READ; return pte; }
-extern inline pte_t pte_mkdirty(pte_t pte)	{ pte_val(pte) |= _PAGE_DIRTY; return pte; }
-extern inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
-extern inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) |= _PAGE_WRITE; return pte; }
+static inline int pte_read(pte_t pte)		{ return pte_val(pte) & _PAGE_READ; }
+static inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
+static inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
+static inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_WRITE; }
+static inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
+static inline int pte_user(pte_t pte) 		{ return pte_val(pte) & _PAGE_USER; }
+
+static inline pte_t pte_rdprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_READ; return pte; }
+static inline pte_t pte_mkclean(pte_t pte)	{ pte_val(pte) &= ~_PAGE_DIRTY; return pte; }
+static inline pte_t pte_mkold(pte_t pte)	{ pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }
+static inline pte_t pte_wrprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_WRITE; return pte; }
+static inline pte_t pte_mkread(pte_t pte)	{ pte_val(pte) |= _PAGE_READ; return pte; }
+static inline pte_t pte_mkdirty(pte_t pte)	{ pte_val(pte) |= _PAGE_DIRTY; return pte; }
+static inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
+static inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) |= _PAGE_WRITE; return pte; }
 
 /*
  * Conversion functions: convert a page and protection to a page entry,
@@ -368,7 +368,7 @@
 #define mk_pte_phys(physpage, pgprot) \
 ({ pte_t __pte; pte_val(__pte) = physpage + pgprot_val(pgprot); __pte; })
 
-extern inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 { pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot); return pte; }
 
 /* Permanent address of a page.  On parisc we don't have highmem. */
--- linux-2.6.14-rc5-mm1-full/include/asm-parisc/semaphore.h.old	2005-10-30 02:00:45.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/include/asm-parisc/semaphore.h	2005-10-30 02:00:51.000000000 +0200
@@ -58,7 +58,7 @@
 #define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
 #define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name,0)
 
-extern inline void sema_init (struct semaphore *sem, int val)
+static inline void sema_init (struct semaphore *sem, int val)
 {
 	*sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val);
 }
@@ -86,7 +86,7 @@
  * interrupts while we're messing with the semaphore.  Sorry.
  */
 
-extern __inline__ void down(struct semaphore * sem)
+static inline void down(struct semaphore * sem)
 {
 	might_sleep();
 	spin_lock_irq(&sem->sentry);
@@ -98,7 +98,7 @@
 	spin_unlock_irq(&sem->sentry);
 }
 
-extern __inline__ int down_interruptible(struct semaphore * sem)
+static inline int down_interruptible(struct semaphore * sem)
 {
 	int ret = 0;
 	might_sleep();
@@ -116,7 +116,7 @@
  * down_trylock returns 0 on success, 1 if we failed to get the lock.
  * May not sleep, but must preserve irq state
  */
-extern __inline__ int down_trylock(struct semaphore * sem)
+static inline int down_trylock(struct semaphore * sem)
 {
 	int flags, count;
 
@@ -132,7 +132,7 @@
  * Note! This is subtle. We jump to wake people up only if
  * the semaphore was negative (== somebody was waiting on it).
  */
-extern __inline__ void up(struct semaphore * sem)
+static inline void up(struct semaphore * sem)
 {
 	int flags;
 	spin_lock_irqsave(&sem->sentry, flags);
--- linux-2.6.14-rc5-mm1-full/include/asm-parisc/tlbflush.h.old	2005-10-30 02:01:00.000000000 +0200
+++ linux-2.6.14-rc5-mm1-full/include/asm-parisc/tlbflush.h	2005-10-30 02:01:06.000000000 +0200
@@ -42,7 +42,7 @@
 #endif
 }
 
-extern __inline__ void flush_tlb_pgtables(struct mm_struct *mm, unsigned long start, unsigned long end)
+static inline void flush_tlb_pgtables(struct mm_struct *mm, unsigned long start, unsigned long end)
 {
 }
  

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/
--- linux-2.6.18-rc4-mm1/include/asm-parisc/io.h.old	2006-08-13 23:08:01.000000000 +0200
+++ linux-2.6.18-rc4-mm1/include/asm-parisc/io.h	2006-08-13 23:08:15.000000000 +0200
@@ -128,7 +128,7 @@
 /* Most machines react poorly to I/O-space being cacheable... Instead let's
  * define ioremap() in terms of ioremap_nocache().
  */
-extern inline void __iomem * ioremap(unsigned long offset, unsigned long size)
+static inline void __iomem * ioremap(unsigned long offset, unsigned long size)
 {
 	return __ioremap(offset, size, _PAGE_NO_CACHE);
 }
--- linux-2.6.18-rc4-mm1/include/asm-parisc/prefetch.h.old	2006-08-13 23:08:25.000000000 +0200
+++ linux-2.6.18-rc4-mm1/include/asm-parisc/prefetch.h	2006-08-13 23:08:34.000000000 +0200
@@ -19,7 +19,7 @@
 #ifdef CONFIG_PREFETCH
 
 #define ARCH_HAS_PREFETCH
-extern inline void prefetch(const void *addr)
+static inline void prefetch(const void *addr)
 {
 	__asm__("ldw 0(%0), %%r0" : : "r" (addr));
 }
@@ -27,7 +27,7 @@
 /* LDD is a PA2.0 addition. */
 #ifdef CONFIG_PA20
 #define ARCH_HAS_PREFETCHW
-extern inline void prefetchw(const void *addr)
+static inline void prefetchw(const void *addr)
 {
 	__asm__("ldd 0(%0), %%r0" : : "r" (addr));
 }
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Subject: Re: [parisc-linux] K410 SCSI 53c700 issue with PLEXTOR PX-R820T
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Xref: news.gmane.org gmane.linux.ports.parisc:25395



Guy Martin wrote:
> Hi James,
> 
> This is working fine ! Thanks a lot !
> 
> I was able to mount a cd without any pb.
> 
> Cheers,
>   Guy
> 
> On Thu, 30 Nov 2006 13:13:46 -0500
> James Bottomley <James.Bottomley@SteelEye.com> wrote:
> 
>> On Thu, 2006-11-30 at 12:17 -0500, James Bottomley wrote:
>>> And here we get a phase mismatch in the command phase because the drive
>>> transitions to data phase after six bytes and the driver still thinks it
>>> has another four to send.
>>>
>>> I'd have the maintainer shot ... he clearly forgot to set up the command
>>> length for auto request sense.
>> Try this and see if it fixes the problem
>>
>> James
> 
Sorry no yet a fix for my pb :_(
scsi1: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
scsi1: Bus Reset detected, executing command 15db93c0, slot 2ff48520, dsp 001c81e8[01e8]
  failing command because of reset, slot 2ff48520, cmnd 15db93c0
  failing command because of reset, slot 2ff4864c, cmnd 2feb03c0
  failing command because of reset, slot 2ff48778, cmnd 2feb0840
  failing command because of reset, slot 2ff488a4, cmnd 2feb0720

May be DEBUG will help too (but my c110 is naturally slow, so not sure, anyway I am trying)

Joel
anyway some progress has to be noticed: I can kill the process (Ctrl-C) and the system stay usable
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On Fri, Dec 01, 2006 at 03:58:00PM +0000, Joel Soete wrote:
> Sorry no yet a fix for my pb :_(

It'd be useful to know if your problem was introduced at the same time.
Can you try the same git revisions that Guy tried and let us know if
that's the same commit that broke your machine?
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On Fri, Dec 01, 2006 at 12:48:11PM +0100, Adrian Bunk wrote:
> "extern inline" generates a warning with -Wmissing-prototypes and I'm 
> currently working on getting the kernel cleaned up for adding this to 
> the CFLAGS since it will help us to avoid a nasty class of runtime 
> errors.


John David Anglin is the hppa/parisc gcc maintainer and has
commented on inline variants last year:
    http://lists.parisc-linux.org/pipermail/parisc-linux/2005-October/027587.html

This makes me think -Wmissing-prototypes is reporting the wrong warning.
ie there is a prototype but no function and no label.
Can you check with gcc folks to see if this is a gcc bug?

The parisc point intentionally switched to "extern inline" at one
point and unless what jda wrote is now incorrect, I'm not inclined
to change it.

> If there are places that really need a forced inline, __always_inline 
> would be the correct solution.

Yes, all the functions marked "extern inline" are expected to get
essentially the same treatment as "always_inline".

thanks,
grant
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Subject: [parisc-linux] Re: [2.6 patch] parisc: "extern inline" -> "static
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On Fri, Dec 01, 2006 at 09:43:54AM -0700, Grant Grundler wrote:
> On Fri, Dec 01, 2006 at 12:48:11PM +0100, Adrian Bunk wrote:
> > "extern inline" generates a warning with -Wmissing-prototypes and I'm 
> > currently working on getting the kernel cleaned up for adding this to 
> > the CFLAGS since it will help us to avoid a nasty class of runtime 
> > errors.
> 
> 
> John David Anglin is the hppa/parisc gcc maintainer and has
> commented on inline variants last year:
>     http://lists.parisc-linux.org/pipermail/parisc-linux/2005-October/027587.html
> 
> This makes me think -Wmissing-prototypes is reporting the wrong warning.
> ie there is a prototype but no function and no label.
> Can you check with gcc folks to see if this is a gcc bug?
> 
> The parisc point intentionally switched to "extern inline" at one
> point and unless what jda wrote is now incorrect, I'm not inclined
> to change it.

If you read John David Anglin's email, you'll note that if you take the 
address you need this function provided somewhere.

Which of the functions my patch changes also have a global function 
provided within the kernel?

If none, "extern inline" didn't make any sense.

> > If there are places that really need a forced inline, __always_inline 
> > would be the correct solution.
> 
> Yes, all the functions marked "extern inline" are expected to get
> essentially the same treatment as "always_inline".

Currently, "inline" is defined to be always_inline, and 
__always_inline is for cases that produce non-compiling or non-working 
(opposed to only suboptimal) code.

> thanks,
> grant

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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On Fri, Dec 01, 2006 at 05:54:27PM +0100, Adrian Bunk wrote:
> If you read John David Anglin's email, you'll note that if you take the 
> address you need this function provided somewhere.

Let me turn that around.
Which of the "extern inline" functions are we taking the address?
The parisc kernel wouldn't (shouldn't) link if that were true.

> Which of the functions my patch changes also have a global function 
> provided within the kernel?
> 
> If none, "extern inline" didn't make any sense.

I expect none.

...
> Currently, "inline" is defined to be always_inline, and 
> __always_inline is for cases that produce non-compiling or non-working 
> (opposed to only suboptimal) code.

Ok.  Sounds like "extern inline" is the same as __always_inline.

Has gcc community confirmed "gcc -Wmissing-prototypes" behavior
is really correct with respect to "extern inline"?

If so, I'm ok with changing "extern inline" to __always_inline.

thanks,
grant
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Subject: [parisc-linux] Anyone use a 3c597?
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Xref: news.gmane.org gmane.linux.ports.parisc:25400

I am looking to pick up an EISA ethernet card.  I've found a 3c597 for
fairly cheap, but upon searching I noticed a couple of notes on the
mailing list back in 2002/2003 that mentioned issues with this driver.
Does anyone right now have this card working, and if not, does anyone
have any suggestions for something EISA?

   Kurt.
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From: Marc Zyngier <maz@misterjones.org>
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Subject: Re: [parisc-linux] Anyone use a 3c597?
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>>>>> "Kurt" == Kurt Fitzner <kfitzner@excelcia.org> writes:

Kurt,

Kurt> I am looking to pick up an EISA ethernet card.  I've found a
Kurt> 3c597 for fairly cheap, but upon searching I noticed a couple of
Kurt> notes on the mailing list back in 2002/2003 that mentioned
Kurt> issues with this driver.  Does anyone right now have this card
Kurt> working, and if not, does anyone have any suggestions for
Kurt> something EISA?

3c592/3c597 won't work on HPPA because we lack DMA support on the EISA
bus (no documentation). Your best bet is with a pure PIO card. I had
great success with a 3c579 (EISA version of the 3c509) on a C100.

It's only a 10Mbit/s, though.

Regards,

	M.
-- 
And if you don't know where you're going, any road will take you there...
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I poked around quite a bit looking for a Java5 JRE that runs on PA-RISC 
Linux, but I have not found one. Has anybody had luck with this. We 
inherited 5 HP B2000s and we are a Java shop, so running Java is a key 
to them being useful.
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Subject: Re: [parisc-linux] Java 5
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> I poked around quite a bit looking for a Java5 JRE that runs on PA-RISC 
> Linux, but I have not found one. Has anybody had luck with this. We 
> inherited 5 HP B2000s and we are a Java shop, so running Java is a key 
> to them being useful.

Hmmm, you want Sun's Java5 for HP!  Not too likely.  See
<http://java.sun.com/j2se/1.5.0/system-configurations.html>.
As far I can tell, only Sparc, x86 and Itanium processors
are supported and even for these the matrix is incomplete.

There might be hope in the future given Sun's decision to
open source Java.

For PA-RISC linux, there's the support within GCC.  There may
be one or two other implementations but I don't know any details
about these.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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From: Kurt Fitzner <kfitzner@excelcia.org>
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I've been having a few problems with kernels, and am wondering if these
are known issues.

1) XFS will not load as a module.  When I try I get:
 FATAL: Error inserting xfs
 (/lib/modules/2.6.18-3-parisc/kernel/fs/xfs/xfs.ko):
 Invalid module format

dmesg reveals:
 module xfs relocation of symbol $$divU is out of range (0x3ffefffd in
 17 bits)

This occurs with any kernel I can get from Debian testing and above, so
2.6.17 and 2.6.18.  I tried their images and compiled a 2.6.17 kernel of
my own from their source.  Could this be related to Debian patches?

2) I'm having problems compiling a 2.6.18 kernel (debian source again).
 Perhaps this issue is out-of-scope for this list, but it confuses me
and I wondered if anyone else here has run into it:
 CC      arch/parisc/kernel/asm-offsets.s
   In file included from include/asm/thread_info.h:7,
                    from include/linux/thread_info.h:21,
                    from include/linux/preempt.h:9,
                    from include/linux/spinlock.h:49,
                    from include/linux/capability.h:45,
                    from include/linux/sched.h:44,
                    from arch/parisc/kernel/asm-offsets.c:31:
   include/asm/processor.h:347: error: redefinition of prefetch
   include/linux/prefetch.h:43: error: previous definition of prefetch
    was here
   include/asm/processor.h:352: error: redefinition of prefetchw
   include/linux/prefetch.h:47: error: previous definition of
    prefetchw was here

As you can see, it's a simple issue, but what confuses me is that
someone must be compiling this source, since Debian supplies a binary
package in unstable of this kernel.  Could this somehow be related to my
installed tool tree?

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John David Anglin wrote:
>> I poked around quite a bit looking for a Java5 JRE that runs on PA-RISC 
>> Linux, but I have not found one. Has anybody had luck with this. We 
>> inherited 5 HP B2000s and we are a Java shop, so running Java is a key 
>> to them being useful.
>>     
>
> Hmmm, you want Sun's Java5 for HP!  Not too likely.  See
> <http://java.sun.com/j2se/1.5.0/system-configurations.html>.
> As far I can tell, only Sparc, x86 and Itanium processors
> are supported and even for these the matrix is incomplete.
>
> There might be hope in the future given Sun's decision to
> open source Java.
>
> For PA-RISC linux, there's the support within GCC.  There may
> be one or two other implementations but I don't know any details
> about these.
>
>   
I don't really care that it's necessarily from Sun, but that it supports 
Java5.

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> dmesg reveals:
>  module xfs relocation of symbol $$divU is out of range (0x3ffefffd in
>  17 bits)

$$divU is a millicode routine.  There are special limitations on
branch distances for millicode.  If this was userspace, $$divU would
be linked into the module and stubs would handle out of range branches.
Millicode symbols are forced local so they can appear in more than
one module.

The above message suggests that the millicode library isn't being
linked with kernel modules and that the symbol is being resolved
by the kernel itself.  I could be all wet about this though...

The fix in this case is probably to build the module into the kernel.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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> I don't really care that it's necessarily from Sun, but that it supports 
> Java5.

There is an HP-UX version available from HP for 11iv1 and later.

The PA-RISC Linux project is volunteer based, so it doesn't have
the resources for a port without help from the Java community.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
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> The PA-RISC Linux project is volunteer based, so it doesn't have
> the resources for a port without help from the Java community.

The debian Java 5 packages are 'sun-java5-*'.  However, processor
support is limited to essentially i386, amd64 (partial) and ia64
(partial).  They are non-free.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Xref: news.gmane.org gmane.linux.ports.parisc:25409

The ack_irq macro is unused and conflicts with James' work to template
the generic irq code.  mask_irq and unmask_irq are also unused, so delete
those macros too.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
---
 include/asm-powerpc/hw_irq.h |   19 -------------------
 1 files changed, 0 insertions(+), 19 deletions(-)

diff --git a/include/asm-powerpc/hw_irq.h b/include/asm-powerpc/hw_irq.h
index d604863..9e4dd98 100644
--- a/include/asm-powerpc/hw_irq.h
+++ b/include/asm-powerpc/hw_irq.h
@@ -107,25 +107,6 @@ static inline void local_irq_save_ptr(un
 
 #endif /* CONFIG_PPC64 */
 
-#define mask_irq(irq)						\
-	({							\
-	 	irq_desc_t *desc = get_irq_desc(irq);		\
-		if (desc->chip && desc->chip->disable)	\
-			desc->chip->disable(irq);		\
-	})
-#define unmask_irq(irq)						\
-	({							\
-	 	irq_desc_t *desc = get_irq_desc(irq);		\
-		if (desc->chip && desc->chip->enable)	\
-			desc->chip->enable(irq);		\
-	})
-#define ack_irq(irq)						\
-	({							\
-	 	irq_desc_t *desc = get_irq_desc(irq);		\
-		if (desc->chip && desc->chip->ack)	\
-			desc->chip->ack(irq);		\
-	})

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From: Matthew Wilcox <matthew@wil.cx>
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Subject: [parisc-linux] [PATCH 2/3] Add the ability to template irq handlers
	in the generic irq code
Date: Tue,  5 Dec 2006 22:15:06 -0700
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Cc: James Bottomley <James.Bottomley@SteelEye.com>,
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Xref: news.gmane.org gmane.linux.ports.parisc:25410

On parisc, we have the issue that function call pointers are hugely
expensive, so we'd like to minimise their use in the interrupts.
Unfortunately, this involves directly calling the ack/eoi functions
instead of indirecting.  To permit this without losing the advantages of
centrally managed irq code, I introduced template builders for irq
handlers.  This allows us to construct special handlers on parisc that
don't indirect through function call pointers.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Some fixes by Andrew Morton and Matthew Wilcox due to rapid code flux
in this area.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
---
 kernel/irq/chip.c |  163 ++++++++++++++++++++++++++++++++++-------------------
 1 files changed, 104 insertions(+), 59 deletions(-)

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index ebfd24a..1b18c5c 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -17,6 +17,87 @@
 
 #include "internals.h"
 
+/* Helpers for constructing IRQ handlers */
+
+#ifdef CONFIG_SMP
+#define HANDLE_PERCPU_IRQ(NAME, ACK, EOI)				\
+void fastcall								\
+handle_percpu_irq##NAME(unsigned int irq, struct irq_desc *desc)	\
+{									\
+	irqreturn_t action_ret;						\
+									\
+	kstat_this_cpu.irqs[irq]++;					\
+									\
+	ACK(desc, irq);							\
+									\
+	action_ret = handle_IRQ_event(irq, desc->action);		\
+	if (!noirqdebug)						\
+		note_interrupt(irq, desc, action_ret);			\
+									\
+	EOI(desc,irq);							\
+}
+#else
+#define HANDLE_PERCPU_IRQ(NAME, ACK, END)
+#endif /* CONFIG_SMP */
+
+#define HANDLE_LEVEL_IRQ(NAME, MASK, UNMASK)				\
+void fastcall								\
+handle_level_irq##NAME(unsigned int irq, struct irq_desc *desc)		\
+{									\
+	unsigned int cpu = smp_processor_id();				\
+	struct irqaction *action;					\
+	irqreturn_t action_ret;						\
+									\
+	spin_lock(&desc->lock);						\
+	MASK(desc, irq);						\
+									\
+	if (unlikely(desc->status & IRQ_INPROGRESS))			\
+		goto out_unlock;					\
+	desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);			\
+	kstat_cpu(cpu).irqs[irq]++;					\
+									\
+	/*								\
+	 * If its disabled or no action available			\
+	 * keep it masked and get out of here				\
+	 */								\
+	action = desc->action;						\
+	if (unlikely(!action || (desc->status & IRQ_DISABLED))) {	\
+		desc->status |= IRQ_PENDING;				\
+		goto out_unlock;					\
+	}								\
+									\
+	desc->status |= IRQ_INPROGRESS;					\
+	desc->status &= ~IRQ_PENDING;					\
+	spin_unlock(&desc->lock);					\
+									\
+	action_ret = handle_IRQ_event(irq, action);			\
+	if (!noirqdebug)						\
+		note_interrupt(irq, desc, action_ret);			\
+									\
+	spin_lock(&desc->lock);						\
+	desc->status &= ~IRQ_INPROGRESS;				\
+	UNMASK(desc,irq);						\
+out_unlock:								\
+	spin_unlock(&desc->lock);					\
+}
+
+#define HANDLE_SPECIFIC_IRQ(NAME, ACK, EOI, HANDLER)			\
+void fastcall								\
+handle_specific_irq##NAME(unsigned int irq, struct irq_desc *desc)	\
+{									\
+	irqreturn_t action_ret;						\
+									\
+	kstat_this_cpu.irqs[irq]++;					\
+									\
+	ACK(desc, irq);							\
+									\
+	action_ret = HANDLER(irq, desc->action->dev_id);		\
+	if (!noirqdebug)						\
+		note_interrupt(irq, desc, action_ret);			\
+									\
+	EOI(desc,irq);							\
+}
+
 /**
  *	dynamic_irq_init - initialize a dynamically allocated irq
  *	@irq:	irq number to initialize
@@ -247,6 +328,24 @@ static inline void mask_ack_irq(struct i
 	}
 }
 
+static inline void unmask_enabled_irq(struct irq_desc *desc, int irq)
+{
+	if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask)
+		desc->chip->unmask(irq);
+}
+
+static inline void ack_irq(struct irq_desc *desc, int irq)
+{
+	if (desc->chip->ack)
+		desc->chip->ack(irq);
+}
+
+static inline void eoi_irq(struct irq_desc *desc, int irq)
+{
+	if (desc->chip->eoi)
+		desc->chip->eoi(irq);
+}
+
 /**
  *	handle_simple_irq - Simple and software-decoded IRQs.
  *	@irq:	the interrupt number
@@ -300,46 +399,7 @@ out_unlock:
  *	it after the associated handler has acknowledged the device, so the
  *	interrupt line is back to inactive.
  */
-void fastcall
-handle_level_irq(unsigned int irq, struct irq_desc *desc)
-{
-	unsigned int cpu = smp_processor_id();
-	struct irqaction *action;
-	irqreturn_t action_ret;
-
-	spin_lock(&desc->lock);
-	mask_ack_irq(desc, irq);
-
-	if (unlikely(desc->status & IRQ_INPROGRESS))
-		goto out_unlock;
-	desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
-	kstat_cpu(cpu).irqs[irq]++;
-
-	/*
-	 * If its disabled or no action available
-	 * keep it masked and get out of here
-	 */
-	action = desc->action;
-	if (unlikely(!action || (desc->status & IRQ_DISABLED))) {
-		desc->status |= IRQ_PENDING;
-		goto out_unlock;
-	}
-
-	desc->status |= IRQ_INPROGRESS;
-	desc->status &= ~IRQ_PENDING;
-	spin_unlock(&desc->lock);
-
-	action_ret = handle_IRQ_event(irq, action);
-	if (!noirqdebug)
-		note_interrupt(irq, desc, action_ret);
-
-	spin_lock(&desc->lock);
-	desc->status &= ~IRQ_INPROGRESS;
-	if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask)
-		desc->chip->unmask(irq);
-out_unlock:
-	spin_unlock(&desc->lock);
-}
+HANDLE_LEVEL_IRQ(, mask_ack_irq, unmask_enabled_irq)
 
 /**
  *	handle_fasteoi_irq - irq handler for transparent controllers
@@ -472,7 +532,6 @@ out_unlock:
 	spin_unlock(&desc->lock);
 }
 
-#ifdef CONFIG_SMP
 /**
  *	handle_percpu_IRQ - Per CPU local irq handler
  *	@irq:	the interrupt number
@@ -480,25 +539,11 @@ out_unlock:
  *
  *	Per CPU interrupts on SMP machines without locking requirements
  */
-void fastcall
-handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
-{
-	irqreturn_t action_ret;
-
-	kstat_this_cpu.irqs[irq]++;
-
-	if (desc->chip->ack)
-		desc->chip->ack(irq);
+HANDLE_PERCPU_IRQ(, ack_irq, eoi_irq)
 
-	action_ret = handle_IRQ_event(irq, desc->action);
-	if (!noirqdebug)
-		note_interrupt(irq, desc, action_ret);
-
-	if (desc->chip->eoi)
-		desc->chip->eoi(irq);
-}

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On Thu, Nov 30, 2006 at 10:20:50AM +0100, Mariusz Kozlowski wrote:
> Hello,
> 
> 	This patch removes extra brackets.
> 
> Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
> 
>  include/asm-parisc/pdcpat.h |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 

applied, thanks.
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Subject: [parisc-linux] [PATCH 3/3] Convert parisc to generic irq handling
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Also make use of the specific ability to template interrupts for the
timer and IPI interrupts.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Updated for pt_regs changes

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
---
 arch/parisc/kernel/irq.c          |   23 ++++++++++-------------
 drivers/parisc/iosapic.c          |    7 +++----
 include/asm-parisc/irq-handlers.h |   15 +++++++++++++++
 include/asm-parisc/irq.h          |   21 +++++++++++++++++++--
 4 files changed, 47 insertions(+), 19 deletions(-)

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index b39c5b9..2a929a2 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -35,9 +35,6 @@
 
 #undef PARISC_IRQ_CR16_COUNTS
 
-extern irqreturn_t timer_interrupt(int, void *);
-extern irqreturn_t ipi_interrupt(int, void *);
-
 #define EIEM_MASK(irq)       (1UL<<(CPU_IRQ_MAX - irq))
 
 /* Bits in EIEM correlate with cpu_irq_action[].
@@ -88,7 +85,7 @@ static unsigned int cpu_startup_irq(unsi
 void no_ack_irq(unsigned int irq) { }
 void no_end_irq(unsigned int irq) { }
 
-void cpu_ack_irq(unsigned int irq)
+void cpu_ack_irq(struct irq_desc *dummy, unsigned int irq)
 {
 	unsigned long mask = EIEM_MASK(irq);
 	int cpu = smp_processor_id();
@@ -105,7 +102,7 @@ void cpu_ack_irq(unsigned int irq)
 	mtctl(mask, 23);
 }
 
-void cpu_end_irq(unsigned int irq)
+void cpu_end_irq(struct irq_desc *dummy, unsigned int irq)
 {
 	unsigned long mask = EIEM_MASK(irq);
 	int cpu = smp_processor_id();
@@ -155,8 +152,6 @@ static struct hw_interrupt_type cpu_inte
 	.shutdown	= cpu_disable_irq,
 	.enable		= cpu_enable_irq,
 	.disable	= cpu_disable_irq,
-	.ack		= cpu_ack_irq,
-	.end		= cpu_end_irq,
 #ifdef CONFIG_SMP
 	.set_affinity	= cpu_set_affinity_irq,
 #endif
@@ -253,8 +248,8 @@ int cpu_claim_irq(unsigned int irq, stru
 		return -EBUSY;
 
 	if (type) {
-		irq_desc[irq].chip = type;
-		irq_desc[irq].chip_data = data;
+		set_irq_chip(irq, type);
+		set_irq_chip_data(irq, data);
 		cpu_interrupt_type.enable(irq);
 	}
 	return 0;
@@ -377,7 +372,7 @@ void do_cpu_irq_mask(struct pt_regs *reg
 		goto set_out;
 	}
 #endif
-	__do_IRQ(irq);
+	generic_handle_irq(irq);
 
  out:
 	irq_exit();
@@ -406,15 +401,17 @@ static struct irqaction ipi_action = {
 static void claim_cpu_irqs(void)
 {
 	int i;
-	for (i = CPU_IRQ_BASE; i <= CPU_IRQ_MAX; i++) {
-		irq_desc[i].chip = &cpu_interrupt_type;
-	}
+	for (i = CPU_IRQ_BASE; i <= CPU_IRQ_MAX; i++)
+		set_irq_chip_and_handler(i, &cpu_interrupt_type,
+					 handle_level_irq_chip);
 
 	irq_desc[TIMER_IRQ].action = &timer_action;
 	irq_desc[TIMER_IRQ].status |= IRQ_PER_CPU;
+	set_irq_handler(TIMER_IRQ, handle_specific_irq_timer);
 #ifdef CONFIG_SMP
 	irq_desc[IPI_IRQ].action = &ipi_action;
 	irq_desc[IPI_IRQ].status = IRQ_PER_CPU;
+	set_irq_handler(IPI_IRQ, handle_specific_irq_ipi);
 #endif
 }
 
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 12bab64..4e9f660 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -686,13 +686,13 @@ printk("\n");
  * i386/ia64 support ISA devices and have to deal with
  * edge-triggered interrupts too.
  */
-static void iosapic_end_irq(unsigned int irq)
+void iosapic_end_irq(struct irq_desc *dummy, unsigned int irq)
 {
 	struct vector_info *vi = iosapic_get_vector(irq);
 	DBG(KERN_DEBUG "end_irq(%d): eoi(%p, 0x%x)\n", irq,
 			vi->eoi_addr, vi->eoi_data);
 	iosapic_eoi(vi->eoi_addr, vi->eoi_data);
-	cpu_end_irq(irq);
+	cpu_end_irq(NULL, irq);
 }
 
 static unsigned int iosapic_startup_irq(unsigned int irq)
@@ -729,8 +729,6 @@ static struct hw_interrupt_type iosapic_
 	.shutdown =	iosapic_disable_irq,
 	.enable =	iosapic_enable_irq,
 	.disable =	iosapic_disable_irq,
-	.ack =		cpu_ack_irq,
-	.end =		iosapic_end_irq,
 #ifdef CONFIG_SMP
 	.set_affinity =	iosapic_set_affinity_irq,
 #endif
@@ -819,6 +817,7 @@ int iosapic_fixup_irq(void *isi_obj, str
 	vi->eoi_data = cpu_to_le32(vi->txn_data);
 
 	cpu_claim_irq(vi->txn_irq, &iosapic_interrupt_type, vi);
+	set_irq_handler(vi->txn_irq, handle_level_irq_iosapic);
 
  out:
 	pcidev->irq = vi->txn_irq;
diff --git a/include/asm-parisc/irq-handlers.h b/include/asm-parisc/irq-handlers.h
new file mode 100644
index 0000000..95a9d1b
--- /dev/null
+++ b/include/asm-parisc/irq-handlers.h
@@ -0,0 +1,8 @@
+HANDLE_LEVEL_IRQ(_chip, cpu_ack_irq, cpu_end_irq)
+HANDLE_SPECIFIC_IRQ(_timer, cpu_ack_irq, cpu_end_irq, timer_interrupt)
+#ifdef CONFIG_SMP
+HANDLE_SPECIFIC_IRQ(_ipi, cpu_ack_irq, cpu_end_irq, ipi_interrupt)
+#endif
+#ifdef CONFIG_IOSAPIC
+HANDLE_LEVEL_IRQ(_iosapic, cpu_ack_irq, iosapic_end_irq)
+#endif
diff --git a/include/asm-parisc/irq.h b/include/asm-parisc/irq.h
index 399c819..ae29629 100644
--- a/include/asm-parisc/irq.h
+++ b/include/asm-parisc/irq.h
@@ -8,6 +8,7 @@
 #define _ASM_PARISC_IRQ_H
 
 #include <linux/cpumask.h>
+#include <linux/irqreturn.h>
 #include <asm/types.h>
 
 #define NO_IRQ		(-1)
@@ -26,6 +27,17 @@
 
 #define NR_IRQS		(CPU_IRQ_MAX + 1)
 
+#define ARCH_HAS_IRQ_HANDLERS
+
+struct irq_desc;
+
+void fastcall handle_level_irq_chip(unsigned int irq, struct irq_desc *desc);
+void fastcall handle_level_irq_iosapic(unsigned int irq, struct irq_desc *desc);
+void fastcall handle_percpu_irq_chip(unsigned int irq, struct irq_desc *desc);
+void fastcall handle_specific_irq_timer(unsigned int irq,
+					struct irq_desc *desc);
+void fastcall handle_specific_irq_ipi(unsigned int irq, struct irq_desc *desc);
+
 static __inline__ int irq_canonicalize(int irq)
 {
 	return (irq == 2) ? 9 : irq;
@@ -39,8 +51,9 @@ struct irq_chip;
  */
 void no_ack_irq(unsigned int irq);
 void no_end_irq(unsigned int irq);
-void cpu_ack_irq(unsigned int irq);
-void cpu_end_irq(unsigned int irq);
+void cpu_ack_irq(struct irq_desc *, unsigned int irq);
+void cpu_end_irq(struct irq_desc *, unsigned int irq);
+void iosapic_end_irq(struct irq_desc *, unsigned int irq);
 
 extern int txn_alloc_irq(unsigned int nbits);
 extern int txn_claim_irq(int);
@@ -51,6 +64,10 @@ extern unsigned long txn_affinity_addr(u
 extern int cpu_claim_irq(unsigned int irq, struct irq_chip *, void *);
 extern int cpu_check_affinity(unsigned int irq, cpumask_t *dest);
 
+/* Prototypes for the two directly called interrupts */
+extern irqreturn_t timer_interrupt(int, void *);
+extern irqreturn_t ipi_interrupt(int, void *);
+
 /* soft power switch support (power.c) */
 extern struct tasklet_struct power_tasklet;
 
-- 
1.4.3.3

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Xref: news.gmane.org gmane.linux.ports.parisc:25413

On Fri, Dec 01, 2006 at 11:23:55AM -0700, Grant Grundler wrote:
> I've committed a variant of this to git://git.parisc-linux.org/git/linux-2.6.git
> I didn't test the failure case - only that it doesn't trigger with
> my current gcc 4.x compilers.
> 
> I expect Kyle will push parisc tree to linus in the near future.
> 
> Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
> 

I like the version ggg committed to our cvs better (and I verified it
correctly functions with gcc-3.0 from Debian woody.)

Picked into my tree.

Cheers,
	Kyle
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From: Grant Grundler <grundler@parisc-linux.org>
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Cc: parisc-linux@parisc-linux.org,
 Kurt Fitzner <kfitzner@excelcia.org>,
 T-Bone@parisc-linux.org
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
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On Wed, Dec 13, 2006 at 03:48:58PM -0500, John David Anglin wrote:
> I agree.  As one who receives a lot of spam, I know the amount
> of spam will grow and overwhelm the content if the list is left
> open without antivirus and spam protection.  This may cause
> spam filters to reject all messages from the list.

Any objection to moving the list to a different service
that can provide spam protection and host the list?

I've created parisc-linux on google (just to reserve the name)
but want some more comments on the basic premise that we should
migrate the service first.

> The GCC project uses proofpoint virus and spam protection, and the
> lists have very little spam on them.  This may not be feasible for
> the parisc-linux list without hosting support but something is needed.

I guess so - I see it in the archives even if I don't see it
after my spamassassin setup filters it out.

thanks,
grant
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From: Randolph Chung <randolph@tausq.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [parisc-linux] Anonymous posting?
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To: Grant Grundler <grundler@parisc-linux.org>,
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> I don't think it's *that* much work to implement some basic spam
> filtering. Just pipe it through spamc and drop everything above a
> certain spam level for the first step.
> 
> Feeding back unrecognized spam would help to make it better, though.
> 
> As far as other services would be used, why not just move to
> vger.kernel.org?

We can, the only concern is that moving to a new service means we may
lose some subscribers....

In any case, Kyle has implemented some steps to mitigate the issue with
spam on the list. I expect we will see significant improvement from now
on. Thanks Kyle!! :-)

randolph

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From: Matthew Wilcox <matthew@wil.cx>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Cell support and fix PCI PDC paths
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Xref: news.gmane.org gmane.linux.ports.parisc:25416


Grant noted that the way we construct a PDC
address for a PCI device is wrong on some machines
(ftp://ftp.parisc-linux.org/patches/diff-2.6.20-rc1-PCI_hwpath).
I noticed the PDC_PAT_IO_GET_HW_FROM_PCI_CONFIG procedure in the PAT
PDC document, and decided we should use it instead where we can.

I also noticed that the definition of the flags byte has been changed
for PAT machines -- the bottom 6 bits now define which cell the device is
attached to.  This explains (for example) why we get a duplicate hwpath
for Vesa's rp8400.

We would have got wrong results from the pdc_stable driver when it tried
to read the timeout value, so I've just disabled that sysfs file on pdc
machines for now.

I chose to implement cellular support by tagging each parisc_device
with a 'cell' byte, rather than the more obvious creation of a set of
cell parisc_devices as I thought this would minimise code churn and
memory consumption.

I didn't like the use of PF_* for flag definitions.  To me, PF_* are
networking protocol families (eg PF_INET).  So I changed that to HWP
for hardware path.

Testing appreciated; I've only tried it on an N-class.

diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 6274cd2..51a6384 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -36,6 +36,7 @@
 #include <asm/hardware.h>
 #include <asm/io.h>
 #include <asm/pdc.h>
+#include <asm/pdcpat.h>
 #include <asm/parisc-device.h>
 
 /* See comments in include/asm-parisc/pci.h */
@@ -306,9 +307,15 @@ static void get_node_path(struct device *dev, struct hardware_path *path)
 	memset(&path->bc, -1, 6);
 
 	if (is_pci_dev(dev)) {
-		unsigned int devfn = to_pci_dev(dev)->devfn;
-		path->mod = PCI_FUNC(devfn);
-		path->bc[i--] = PCI_SLOT(devfn);
+		struct pci_dev *pdev = to_pci_dev(dev);
+		if (is_pdc_pat()) {
+			int ret = pdc_pat_get_hwpath_from_pci(
+						pdc_address(pdev), path);
+			if (ret == PDC_OK)
+				return;
+		}
+		path->mod = PCI_FUNC(pdev->devfn);
+		path->bc[i--] = PCI_SLOT(pdev->devfn);
 		dev = dev->parent;
 	}
 
@@ -318,6 +325,8 @@ static void get_node_path(struct device *dev, struct hardware_path *path)
 			path->bc[i--] = PCI_SLOT(devfn) | (PCI_FUNC(devfn)<< 5);
 		} else if (dev->bus == &parisc_bus_type) {
 			path->bc[i--] = to_parisc_device(dev)->hw_path;
+			if (is_pdc_pat())
+				path->flags = to_parisc_device(dev)->cell;
 		}
 		dev = dev->parent;
 	}
@@ -326,6 +335,10 @@ static void get_node_path(struct device *dev, struct hardware_path *path)
 static char *print_hwpath(struct hardware_path *path, char *output)
 {
 	int i;
+
+	if (is_pdc_pat())
+		output += sprintf(output, "%u/", path->flags & HWP_CELL);
+
 	for (i = 0; i < 6; i++) {
 		if (path->bc[i] == -1)
 			continue;
@@ -406,13 +419,15 @@ static void setup_bus_id(struct parisc_device *padev)
 	sprintf(output, "%u", (unsigned char) padev->hw_path);
 }
 
-struct parisc_device * create_tree_node(char id, struct device *parent)
+static struct parisc_device *
+create_tree_node(struct device *parent, char cell, char id)
 {
 	struct parisc_device *dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (!dev)
 		return NULL;
 
 	dev->hw_path = id;
+	dev->cell = cell;
 	dev->id.hw_type = HPHW_FAULTY;
 
 	dev->dev.parent = parent;
@@ -434,6 +449,7 @@ struct parisc_device * create_tree_node(char id, struct device *parent)
 
 struct match_id_data {
 	char id;
+	char cell;
 	struct parisc_device * dev;
 };
 
@@ -442,7 +458,7 @@ static int match_by_id(struct device * dev, void * data)
 	struct parisc_device * pdev = to_parisc_device(dev);
 	struct match_id_data * d = data;
 
-	if (pdev->hw_path == d->id) {
+	if (pdev->hw_path == d->id && pdev->cell == d->cell) {
 		d->dev = pdev;
 		return 1;
 	}
@@ -457,27 +473,29 @@ static int match_by_id(struct device * dev, void * data)
  * Checks all the children of @parent for a matching @id.  If none
  * found, it allocates a new device and returns it.
  */
-static struct parisc_device * alloc_tree_node(struct device *parent, char id)
+static struct parisc_device * alloc_tree_node(struct device *parent, char cell, char id)
 {
 	struct match_id_data d = {
 		.id = id,
+		.cell = cell,
 	};
 	if (device_for_each_child(parent, &d, match_by_id))
 		return d.dev;
 	else
-		return create_tree_node(id, parent);
+		return create_tree_node(parent, cell, id);
 }
 
 static struct parisc_device *create_parisc_device(struct hardware_path *modpath)
 {
 	int i;
+	char cell = is_pdc_pat() ? modpath->flags & HWP_CELL : 0;
 	struct device *parent = &root;
 	for (i = 0; i < 6; i++) {
 		if (modpath->bc[i] == -1)
 			continue;
-		parent = &alloc_tree_node(parent, modpath->bc[i])->dev;
+		parent = &alloc_tree_node(parent, cell, modpath->bc[i])->dev;
 	}
-	return alloc_tree_node(parent, modpath->mod);
+	return alloc_tree_node(parent, cell, modpath->mod);
 }
 
 struct parisc_device *
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 9158b70..7516790 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1387,6 +1387,20 @@ int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val)
 
 	return retval;
 }
+
+int pdc_pat_get_hwpath_from_pci(unsigned long pci_addr, struct hardware_path *path)
+{
+	int retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_GET_HW_FROM_PCI_CONFIG,
+			__pa(pdc_result), pci_addr);
+	memcpy(path, pdc_result, 8);
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
 #endif /* __LP64__ */
 
 
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index ea1b7a6..66afab8 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -67,6 +67,7 @@
 #include <linux/spinlock.h>
 
 #include <asm/pdc.h>
+#include <asm/pdcpat.h>
 #include <asm/page.h>
 #include <asm/uaccess.h>
 #include <asm/hardware.h>
@@ -541,7 +542,7 @@ pdcs_size_read(struct subsystem *entry, char *buf)
  * pdcs_auto_read - Stable Storage autoboot/search flag output.
  * @entry: An allocated and populated subsytem struct. We don't use it tho.
  * @buf: The output buffer to write to.
- * @knob: The PF_AUTOBOOT or PF_AUTOSEARCH flag
+ * @knob: The HWP_AUTOBOOT or HWP_AUTOSEARCH flag
  */
 static ssize_t
 pdcs_auto_read(struct subsystem *entry, char *buf, int knob)
@@ -571,7 +572,7 @@ pdcs_auto_read(struct subsystem *entry, char *buf, int knob)
 static inline ssize_t
 pdcs_autoboot_read(struct subsystem *entry, char *buf)
 {
-	return pdcs_auto_read(entry, buf, PF_AUTOBOOT);
+	return pdcs_auto_read(entry, buf, HWP_AUTOBOOT);
 }
 
 /**
@@ -582,7 +583,7 @@ pdcs_autoboot_read(struct subsystem *entry, char *buf)
 static inline ssize_t
 pdcs_autosearch_read(struct subsystem *entry, char *buf)
 {
-	return pdcs_auto_read(entry, buf, PF_AUTOSEARCH);
+	return pdcs_auto_read(entry, buf, HWP_AUTOSEARCH);
 }
 
 /**
@@ -597,19 +598,28 @@ pdcs_timer_read(struct subsystem *entry, char *buf)
 {
 	char *out = buf;
 	struct pdcspath_entry *pathentry;
+	int timer;
 
 	if (!entry || !buf)
 		return -EINVAL;
 
+	/*
+	 * PDC PAT machines use the timer field for something different.
+	 * I don't know where they keep the timer field now ...
+	 */
+	if (is_pdc_pat())
+		return -ENODEV;
+
 	/* Current flags are stored in primary boot path entry */
 	pathentry = &pdcspath_entry_primary;
 
-	/* print the timer value in seconds */
 	read_lock(&pathentry->rw_lock);
-	out += sprintf(out, "%u\n", (pathentry->devpath.flags & PF_TIMER) ?
-				(1 << (pathentry->devpath.flags & PF_TIMER)) : 0);
+	timer = pathentry->devpath.flags & HWP_TIMER;
 	read_unlock(&pathentry->rw_lock);
 
+	/* print the timer value in seconds */
+	out += sprintf(out, "%u\n", timer ? (1 << timer) : 0);
+
 	return out - buf;
 }
 
@@ -751,7 +761,7 @@ pdcs_osdep2_read(struct subsystem *entry, char *buf)
  * @entry: An allocated and populated subsytem struct. We don't use it tho.
  * @buf: The input buffer to read from.
  * @count: The number of bytes to be read.
- * @knob: The PF_AUTOBOOT or PF_AUTOSEARCH flag
+ * @knob: The HWP_AUTOBOOT or HWP_AUTOSEARCH flag
  * 
  * We will call this function to change the current autoboot flag.
  * We expect a precise syntax:
@@ -811,7 +821,7 @@ pdcs_auto_write(struct subsystem *entry, const char *buf, size_t count, int knob
 	write_unlock(&pathentry->rw_lock);
 	
 	printk(KERN_INFO PDCS_PREFIX ": changed \"%s\" to \"%s\"\n",
-		(knob & PF_AUTOBOOT) ? "autoboot" : "autosearch",
+		(knob & HWP_AUTOBOOT) ? "autoboot" : "autosearch",
 		(flags & knob) ? "On" : "Off");
 	
 	return count;
@@ -834,7 +844,7 @@ parse_error:
 static inline ssize_t
 pdcs_autoboot_write(struct subsystem *entry, const char *buf, size_t count)
 {
-	return pdcs_auto_write(entry, buf, count, PF_AUTOBOOT);
+	return pdcs_auto_write(entry, buf, count, HWP_AUTOBOOT);
 }
 
 /**
@@ -850,7 +860,7 @@ pdcs_autoboot_write(struct subsystem *entry, const char *buf, size_t count)
 static inline ssize_t
 pdcs_autosearch_write(struct subsystem *entry, const char *buf, size_t count)
 {
-	return pdcs_auto_write(entry, buf, count, PF_AUTOSEARCH);
+	return pdcs_auto_write(entry, buf, count, HWP_AUTOSEARCH);
 }
 
 /**
diff --git a/include/asm-parisc/parisc-device.h b/include/asm-parisc/parisc-device.h
index e12624d..feb1861 100644
--- a/include/asm-parisc/parisc-device.h
+++ b/include/asm-parisc/parisc-device.h
@@ -12,6 +12,7 @@ struct parisc_device {
 	int		aux_irq;	/* Some devices have a second IRQ */
 
 	char		hw_path;        /* The module number on this bus */
+	char		cell;		/* Only on PAT machines */
 	unsigned int	num_addrs;	/* some devices have additional address ranges. */
 	unsigned long	*addr;          /* which will be stored here */
  
diff --git a/include/asm-parisc/pdc.h b/include/asm-parisc/pdc.h
index 423c2b8..7f8f4ef 100644
--- a/include/asm-parisc/pdc.h
+++ b/include/asm-parisc/pdc.h
@@ -561,9 +561,10 @@ struct pdc_hpmc_pim_20 { /* PDC_PIM */
 #endif /* __ASSEMBLY__ */
 
 /* flags of the device_path (see below) */
-#define	PF_AUTOBOOT	0x80
-#define	PF_AUTOSEARCH	0x40
-#define	PF_TIMER	0x0F
+#define HWP_AUTOBOOT	0x80
+#define HWP_AUTOSEARCH	0x40
+#define HWP_CELL	0x3F	/* On PAT systems */
+#define HWP_TIMER	0x0F	/* Non-PAT systems */
 
 #ifndef __ASSEMBLY__
 
diff --git a/include/asm-parisc/pdcpat.h b/include/asm-parisc/pdcpat.h
index 47539f1..35882d8 100644
--- a/include/asm-parisc/pdcpat.h
+++ b/include/asm-parisc/pdcpat.h
@@ -192,15 +192,20 @@
 
 #ifdef CONFIG_64BIT
 #define is_pdc_pat()	(PDC_TYPE_PAT == pdc_type)
-extern int pdc_pat_get_irt_size(unsigned long *num_entries, unsigned long cell_num);
+extern int pdc_pat_get_irt_size(unsigned long *num_entries,
+						unsigned long cell_num);
 extern int pdc_pat_get_irt(void *r_addr, unsigned long cell_num);
+extern int pdc_pat_get_hwpath_from_pci(unsigned long address,
+						struct hardware_path *path);
 #else	/* ! CONFIG_64BIT */
 /* No PAT support for 32-bit kernels...sorry */
 #define is_pdc_pat()	(0)
 #define pdc_pat_get_irt_size(num_entries, cell_numn)	PDC_BAD_PROC
 #define pdc_pat_get_irt(r_addr, cell_num)		PDC_BAD_PROC
+#define pdc_pat_get_hwpath_from_pci(address, path)	PDC_BAD_PROC
 #endif	/* ! CONFIG_64BIT */
 
+#define pdc_address(dev) (dev->bus->number << 16) | (dev->devfn << 8)
 
 struct pdc_pat_cell_num {
 	unsigned long cell_num;
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Subject: Re: [parisc-linux] Cell support and fix PCI PDC paths
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Xref: news.gmane.org gmane.linux.ports.parisc:25417

Barely catching up, a couple of questions ;)

On 12/26/06, Matthew Wilcox <matthew@wil.cx> wrote:

> @@ -326,6 +335,10 @@ static void get_node_path(struct device *dev, struct hardware_path *path)
>  static char *print_hwpath(struct hardware_path *path, char *output)
>  {
>         int i;
> +
> +       if (is_pdc_pat())
> +               output += sprintf(output, "%u/", path->flags & HWP_CELL);
> +

I suppose this change needs to go in pdcspath_layer_read() as well?
(in pdc_stable.c)

AIUI that means that the 'write' procedure needs some rewrite to cope
with this additional field, doesn't it?

Put another way, changing the console/kbd/etc paths with the
pdc_stable driver with this patch applied will just harm the box,
right?

> diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
> index ea1b7a6..66afab8 100644
> --- a/drivers/parisc/pdc_stable.c
> +++ b/drivers/parisc/pdc_stable.c

> @@ -597,19 +598,28 @@ pdcs_timer_read(struct subsystem *entry, char *buf)
>  {
>         char *out = buf;
>         struct pdcspath_entry *pathentry;
> +       int timer;
>
>         if (!entry || !buf)
>                 return -EINVAL;
>
> +       /*
> +        * PDC PAT machines use the timer field for something different.
> +        * I don't know where they keep the timer field now ...
> +        */
> +       if (is_pdc_pat())
> +               return -ENODEV;

I guess the best thing would be to simply not expose the 'timer' file
in sysfs on those boxen, I'll check how to do that cleanly.

HTH, nite all ;)

T-Bone

-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/
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Xref: news.gmane.org gmane.linux.ports.parisc:25418

Carlos O'Donell wrote:

> On 1/1/07, Helge Deller <deller@gmx.de> wrote:
>> I've found the bug now... :-)
>> Patch is attached below, and the problem was not in the kernel, but in
>> glibc.
>>
>> The first hunk in the patch below ("Save the PIC register.") is the fix
>> for the arguments check which I posted before
>>
(http://lists.parisc-linux.org/pipermail/parisc-linux/2006-December/031029.html).
>> This hunk fixes LTP's clone04 test.
>>
>> The second and third hunk fixes the "return 0" bug as reported by LTP's
>> clone06 test. It first saves the current FPIC register on the child's
>> stack (to %arg0 instead of %sr0,%sp) and later reads it back from there
>> in the third hunk just before calling _exit(). That way the PIC register
>> has the correct value and exit() doesn't crashes any more.
>>
>> Now all clone()-tests from LTP succeeds :-)
>>
>> Helge
>>
>>
>> ---
>>
glibc-2.3.6.ds1/build-tree/glibc-2.3.6/debian/sysdeps/unix/sysv/linux/hppa/clone.S.org
>>      2006-12-29 08:49:25.000000000 +0100
>> +++
>>
glibc-2.3.6.ds1/build-tree/glibc-2.3.6/debian/sysdeps/unix/sysv/linux/hppa/clone.S
>>  2007-01-01 19:53:00.000000000 +0100 @@ -32,6 +32,11 @@
>>  ENTRY(__clone)
>>         /* FIXME: I have no idea how profiling works on hppa. */
>>
>> +       /* Save the PIC register. */
>> +#ifdef PIC
>> +       stw     %r19,-32(%sr0, %sp)     /* parent */
>> +#endif
>> +
>>         /* Sanity check arguments.  */
>>         comib,=  0,%arg0,.Lerror        /* no NULL function pointers */
>>         ldi     -EINVAL,%ret0
>> @@ -41,10 +46,8 @@
>>         /* Save the fn ptr and arg on the new stack.  */
>>         stwm    %arg0,64(%arg1)
>>         stw     %arg3,-60(%arg1)
>> -
>> -       /* Save the PIC register. */
>>  #ifdef PIC
>> -       stw     %r19,-32(%sr0, %sp)     /* parent */
>> +       stw     %r19,-32(%arg1)         /* save PIC on child's stack */
>>  #endif
>>
>>         /* Do the system call */
>> @@ -88,6 +91,11 @@
>>         bl      $$dyncall,%r31
>>         copy    %r31,%rp
>>
>> +       /* Restore PIC register for exit() */
>> +#ifdef PIC
>> +       ldw     -32(%sr0, %sp), %r19    /* parent */
>> +#endif
>> +
>>         bl      _exit,%rp
>>         copy    %ret0,%arg0
> 
> Ah, I found this already and fixed it in upstream. You need to submit
> this patch to debian's bts and get it applied to their fixed glibc
> version.
> 
> In the upstream versrion I allocated r4 as a temporary register
> instead of spilling to the stack and back.

yes, and I realized that you fixed it after I was finished with my patch :-(
Anyway, I filed a bugreport today at debian bts:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=405411

Of course I prefer if we can switch to your NPTL-enabled glibc as soon as
possible. But in the meantime it's maybe good to have this patch in in the
old glibc...

Helge


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From: Helge Deller <deller@gmx.de>
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Subject: [parisc-linux] [PARISC] parisc-patch for Linux Test Project
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Xref: news.gmane.org gmane.linux.ports.parisc:25419

Hello * at The Linux Test Project !
CC: PARISC-Linux development mailing list

the trivial patch below is against the current CVS version of LTP and adds
missing pieces and changes which are necessary for LTP on the PARISC/HPPA
architecture.

The read04.c patch part is a real architecture-independend bugfix. The
read04 tests writes TST_SIZE bytes to a file, reads the same amount of
bytes back again and compares the contents. Naturally, it only should
verify if TST_SIZE bytes (the amount of bytes which where written!)
matches. sizeof() returns the number of bytes including the leading
zero-byte which hasn't been read back.

It would be really nice, if someone could apply this patch to the LTP CVS
sources.

Thanks,
Helge


Index: testcases/kernel/syscalls/read/read04.c
===================================================================
RCS file: /cvsroot/ltp/ltp/testcases/kernel/syscalls/read/read04.c,v
retrieving revision 1.5
diff -u -p -r1.5 read04.c
--- testcases/kernel/syscalls/read/read04.c     25 Dec 2006 00:32:54 -0000      1.5
+++ testcases/kernel/syscalls/read/read04.c     6 Jan 2007 20:19:12 -0000
@@ -105,7 +105,7 @@ int main(int ac, char **av)
                                         "expected %d", TEST_RETURN, TST_SIZE);
                                continue;
                        }
-                       if (memcmp(palfa, prbuf, sizeof(palfa)) != 0) {
+                       if (memcmp(palfa, prbuf, TST_SIZE) != 0) {
                                tst_resm(TFAIL, "read buffer not equal "
                                         "to write buffer");
                                continue;
Index: testcases/kernel/mem/shmt/shmt02.c
===================================================================
RCS file: /cvsroot/ltp/ltp/testcases/kernel/mem/shmt/shmt02.c,v
retrieving revision 1.4
diff -u -p -r1.4 shmt02.c
--- testcases/kernel/mem/shmt/shmt02.c  29 Jul 2003 19:46:14 -0000      1.4
+++ testcases/kernel/mem/shmt/shmt02.c  6 Jan 2007 20:19:12 -0000
@@ -81,7 +81,7 @@ int main()
 
 
                 /* are we doing with ia64 or arm_arch_4t arch */
-#if defined (__ia64__) || defined (__ARM_ARCH_4T__)
+#if defined (__ia64__) || defined (__ARM_ARCH_4T__) || defined(__hppa__)
                 cp = (char *) shmat(shmid, (void *)NULL, 0);
 #else          
                 cp = (char *) shmat(shmid, (void *)0x80000, 0);
Index: testcases/kernel/mem/shmt/shmt04.c
===================================================================
RCS file: /cvsroot/ltp/ltp/testcases/kernel/mem/shmt/shmt04.c,v
retrieving revision 1.5
diff -u -p -r1.5 shmt04.c
--- testcases/kernel/mem/shmt/shmt04.c  29 Jul 2003 19:46:14 -0000      1.5
+++ testcases/kernel/mem/shmt/shmt04.c  6 Jan 2007 20:19:12 -0000
@@ -107,7 +107,7 @@ if ((shmid = shmget(key, SIZE, IPC_CREAT
 else {
 #ifdef __ia64__
   cp = (char *) shmat(shmid, ADDR1, 0);
-#elif defined(__ARM_ARCH_4T__)
+#elif defined(__ARM_ARCH_4T__) || defined(__hppa__)
   cp = (char *) shmat(shmid, NULL, 0);
 #else
   cp = (char *) shmat(shmid, ADDR, 0);
@@ -185,7 +185,7 @@ else 
 {
 #ifdef __ia64__
   cp = (char *) shmat(shmid, ADDR1, 0);
-#elif defined(__ARM_ARCH_4T__)
+#elif defined(__ARM_ARCH_4T__) || defined(__hppa__)
   cp = (char *) shmat(shmid, NULL, 0);
 #else
   cp = (char *) shmat(shmid, ADDR, 0);
Index: testcases/kernel/mem/shmt/shmt05.c
===================================================================
RCS file: /cvsroot/ltp/ltp/testcases/kernel/mem/shmt/shmt05.c,v
retrieving revision 1.4
diff -u -p -r1.4 shmt05.c
--- testcases/kernel/mem/shmt/shmt05.c  29 Jul 2003 19:46:14 -0000      1.4
+++ testcases/kernel/mem/shmt/shmt05.c  6 Jan 2007 20:19:12 -0000
@@ -85,7 +85,7 @@ int main()
  } else {
 #ifdef __ia64__ 
   cp = (char *) shmat(shmid, ADDR_IA, 0);
-#elif defined(__ARM_ARCH_4T__)
+#elif defined(__ARM_ARCH_4T__) || defined(__hppa__)
   cp = (char *) shmat(shmid, (void *)NULL, 0);
 #else
   cp = (char *) shmat(shmid, ADDR, 0);
@@ -111,6 +111,8 @@ int main()
    cp1 = (char *) shmat(shmid1, ADDR1_IA, 0);
 #elif defined(__ARM_ARCH_4T__)
    cp1 = (char *) shmat(shmid1, (void *)NULL, 0);
+#elif defined(__hppa__)
+   cp1 = (char *) shmat(shmid1, cp+4096, 0);
 #else
    cp1 = (char *) shmat(shmid1, ADDR1, 0);
 #endif
Index: testcases/kernel/mem/shmt/shmt06.c
===================================================================
RCS file: /cvsroot/ltp/ltp/testcases/kernel/mem/shmt/shmt06.c,v
retrieving revision 1.6
diff -u -p -r1.6 shmt06.c
--- testcases/kernel/mem/shmt/shmt06.c  14 Jun 2004 19:14:09 -0000      1.6
+++ testcases/kernel/mem/shmt/shmt06.c  6 Jan 2007 20:19:12 -0000
@@ -51,6 +51,8 @@
 #define                ADDR1           (void *)0xA0000
 #define         ADDR_MIPS       (void *)0x80000
 #define         ADDR1_MIPS      (void *)0xC0000
+#define                ADDR_HPPA       (void *)0x10000000
+#define                ADDR1_HPPA      (void *)0x20000000
 #define        ADDR_IA         (void *)0x40000000
 #define        ADDR1_IA        (void *)0x50000000
 #define                SIZE            16*1024
@@ -111,6 +113,8 @@ int main()
                  cp = (char *) shmat(shmid, (void*) NULL, 0);
 #elif defined(__mips__)
                  cp = (char *) shmat(shmid, ADDR_MIPS, 0);
+#elif defined(__hppa__)
+                 cp = (char *) shmat(shmid, ADDR_HPPA, 0);
 #else
                  cp = (char *) shmat(shmid, ADDR, 0);
 #endif 
@@ -187,6 +191,8 @@ int child()
                  cp = (char *) shmat(shmid, (void *) NULL, 0);
 #elif defined(__mips__)        
                  cp = (char *) shmat(shmid, ADDR1_MIPS, 0);
+#elif defined(__hppa__)        
+                 cp = (char *) shmat(shmid, ADDR1_HPPA, 0);
 #else
                  cp = (char *) shmat(shmid, ADDR1, 0);
 #endif
Index: testcases/kernel/mem/shmt/shmt07.c
===================================================================
RCS file: /cvsroot/ltp/ltp/testcases/kernel/mem/shmt/shmt07.c,v
retrieving revision 1.4
diff -u -p -r1.4 shmt07.c
--- testcases/kernel/mem/shmt/shmt07.c  29 Jul 2003 19:46:14 -0000      1.4
+++ testcases/kernel/mem/shmt/shmt07.c  6 Jan 2007 20:19:12 -0000
@@ -84,7 +84,7 @@ int main()
 
 #ifdef __ia64__        
          cp = (char *) shmat(shmid, ADDR_IA, 0);
-#elif defined(__ARM_ARCH_4T__)
+#elif defined(__ARM_ARCH_4T__) || defined(__hppa__)
          cp = (char *) shmat(shmid, (void *) NULL, 0);
 #else
          cp = (char *) shmat(shmid, ADDR, 0);
Index: testcases/kernel/mem/shmt/shmt09.c
===================================================================
RCS file: /cvsroot/ltp/ltp/testcases/kernel/mem/shmt/shmt09.c,v
retrieving revision 1.11
diff -u -p -r1.11 shmt09.c
--- testcases/kernel/mem/shmt/shmt09.c  15 Nov 2006 21:11:43 -0000      1.11
+++ testcases/kernel/mem/shmt/shmt09.c  6 Jan 2007 20:19:12 -0000
@@ -68,7 +68,7 @@ int main()
        char    *c1=NULL, *c2=NULL, *c3=NULL;
        void    *vp;
        int     shmid;
-#if defined(__ia64__) || defined(__mips__)
+#if defined(__ia64__) || defined(__mips__) || defined(__hppa__)
        int     increment;
 #endif
        key_t   key;
@@ -179,7 +179,7 @@ int main()
                        rm_shm(shmid);
                        tst_exit();
        }
-#elif __mips__
+#elif defined(__mips__) || defined(__hppa__)
                increment=262144;        /* 256Kb */
                while ((vp = sbrk(increment)) != (void *)-1);
                if (errno != ENOMEM) {
Index: testcases/kernel/io/direct_io/diotest4.c
===================================================================
RCS file: /cvsroot/ltp/ltp/testcases/kernel/io/direct_io/diotest4.c,v
retrieving revision 1.18
diff -u -p -r1.18 diotest4.c
--- testcases/kernel/io/direct_io/diotest4.c    9 Nov 2006 16:34:11 -0000       1.18
+++ testcases/kernel/io/direct_io/diotest4.c    6 Jan 2007 20:19:12 -0000
@@ -546,6 +546,8 @@ main(int argc, char *argv[])
        else {
 #if defined(__powerpc64__)
                ret = read(fd, (char*)(((ulong *)main)[0] & pagemask), count);
+#elif defined(__hppa__)
+               ret = read(fd, (char*)((ulong)__builtin_return_address(0) & pagemask),
count);
 #else
                ret = read(fd, (char*)((ulong)main & pagemask), count);
 #endif
@@ -563,6 +565,8 @@ main(int argc, char *argv[])
        else {
 #if defined(__powerpc64__)
                ret = write(fd, (char *)(((ulong *)main)[0] & pagemask), count);
+#elif defined(__hppa__)
+               ret = write(fd, (char *)((ulong)__builtin_return_address(0) & pagemask),
count);
 #else
                ret = write(fd, (char *)((ulong)main & pagemask), count);
 #endif
Index: testcases/kernel/include/linux_syscall_numbers.h
===================================================================
RCS
file: /cvsroot/ltp/ltp/testcases/kernel/include/linux_syscall_numbers.h,v
retrieving revision 1.2
diff -u -p -r1.2 linux_syscall_numbers.h
--- testcases/kernel/include/linux_syscall_numbers.h    10 Sep 2006 10:12:01
-0000   1.2
+++ testcases/kernel/include/linux_syscall_numbers.h    6 Jan 2007 20:19:12
-0000
@@ -136,7 +136,7 @@
 #endif
 
 
-#ifdef __parisc__
+#if defined(__hppa__)
 # ifndef __NR_openat
 #  define __NR_openat 275
 # endif
@@ -179,6 +179,15 @@
 # ifndef __NR_faccessat
 #  define __NR_faccessat (__NR_openat + 12)
 # endif
+# ifndef __NR_splice
+#  define __NR_splice 291
+# endif
+# ifndef __NR_tee
+#  define __NR_tee 293
+# endif
+# ifndef __NR_vmsplice
+#  define __NR_vmsplice 294
+# endif
 #endif
 
 

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Xref: news.gmane.org gmane.linux.ports.parisc:25420

I am trying to get any version of hppa linux running on an old J5600, 
but I am having no luck.  I have tried several debian and gentoo 
installs still nothing. Yesterday I attempted to use an etch cd to boot 
>from http://www.debian.org/devel/debian-installer/ (daily built images):

TST 10FD: CPU0 testing scratch RAM system state word
TST 11FD: CPU1 testing scratch RAM system state word
INI 10FC: CPU0 synchronizing
INI 11FC: CPU1 synchronizing
INI C100: CPU0 selected as monarch
INI CC11: CPU1 early rendezvous
TST 3000: verifying ROM checksum
INI 3000: ROM checksum ok
TST 3001: PDH control test
INI 3001: PDH control init
TST 3002: scratch RAM test
TST 30BC: test system clocks
INI 30BC: initialize system clocks
INI CC21: CPU1 rendezvous
INI C4CC: initialize close console
INI C4CD: close console not found
INI 3002: scratch RAM ok
INI CC21: CPU1 rendezvous
INI C30C: monarch slave check
INI 10CA: CPU0 initialize system bus arbitration
INI C300: early monarch0 selftest
INI D000: micro controller interface test
INI D005: setting domain1 fan speeds
INI D006: setting domain2 fan speeds
TST 1030: CPU0 start early selftests
WRN 1031: CPU0 early selftests skipped
INI 103C: CPU0 initialize
TST 103E: CPU0 exit early selftests
TST 1130: CPU1 start early selftests
INI C30C: monarch slave check
WRN 1131: CPU1 early selftests skipped
INI 113C: CPU1 initialize
TST 113E: CPU1 exit early selftests
INI CC21: CPU1 rendezvous
INI 10CA: CPU0 initialize system bus arbitration
INI CC31: CPU1 cache rendezvous
INI C30C: monarch slave check
INI 10CA: CPU0 initialize system bus arbitration
INI 7000: start memory DIMM scan
INI 7500: memory reset
INI 7002: initialize memory tables
WRN 7101: memory register test skipped
INI 7200: starting memory DIMM detection
INI 7201: memory DIMM detection   0% complete
INI 7210: is DIMM 00 installed?
INI 7260: 1GB DIMM in memory slot 00
INI 7201: memory DIMM detection  12% complete
INI 7211: is DIMM 01 installed?
INI 7201: memory DIMM detection  25% complete
INI 7212: is DIMM 02 installed?
INI 7201: memory DIMM detection  37% complete
INI 7213: is DIMM 03 installed?
INI 7201: memory DIMM detection  50% complete
INI 7214: is DIMM 04 installed?
INI 7201: memory DIMM detection  62% complete
INI 7215: is DIMM 05 installed?
INI 7201: memory DIMM detection  75% complete
INI 7216: is DIMM 06 installed?
INI 7201: memory DIMM detection  87% complete
INI 7217: is DIMM 07 installed?
INI 7201: memory DIMM detection 100% complete
TST 7010: start memory DIMM order check
TST 7016: start memory DIMM pair loading check
TST 7020: search for initial memory bank
TST 7030: verify DIMM 00 still works as initial memory module
INI 7307: generate memory interleave
TST 7600: destructive memory test
TST 7602: destructively test first page of memory
TST 7604:   starting 1st pass of memory test
TST 7606:   starting 2nd pass of memory test
TST 7608:   starting 3rd pass of memory test
TST 7603: destructively testing the rest of memory
TST 7604:   starting 1st pass of memory test
TST 7606:   starting 2nd pass of memory test
TST 7608:   starting 3rd pass of memory test
INI 70F0: memory DIMM scan complete
INI 8805: I/O subsystem init
INI 7300: memory configuration starting
INI 7500: memory reset
TST 7301: check for memory configuration change since last boot
INI 7303: memory unchanged--use saved configuration from NVM
INI 7304: interleave memory DIMMs
INI 7307: generate memory interleave
TST 7600: destructive memory test
WRN 7601: initialize memory only (don't test)
TST 760A: starting memory initialization
TST 760B:   memory initialization  25% complete
TST 760B:   memory initialization  50% complete
TST 760B:   memory initialization  75% complete
TST 760B:   memory initialization 100% complete
INI 730F: memory configuration complete
INI 8800: PCI BusWalk starting
INI 8801: Walking Rope 0
INI 8811: Walking Rope 1
INI 8821: Walking Rope 2
INI 8841: Walking Rope 4
INI 8861: Walking Rope 6
INI 8802: PCI BusWalk complete
INI 8803: PCI alloc complete
INI 8804: PCI config complete
WRN 4001: CPU0 late selftests skipped
INI 103C: CPU0 initialize
TST 400E: CPU0 exiting late selftests
WRN 4101: CPU1 late selftests skipped
INI 113C: CPU1 initialize
TST 410E: CPU1 exiting late selftests
INI CC41: CPU1 memory rendezvous
TST 301B: check model string
TST 301C: check/update software ID
TST C687: try to initialize graphics in slot 7
INI C687: initialized graphics in slot 7
INI 9151: initialize SERIAL_1


INI 9C51: console is SERIAL_1

Firmware Version 5.0


Duplex Console IO Dependent Code (IODC) revision 1

------------------------------------------------------------------------------

    (c) Copyright 1995-2000, Hewlett-Packard Company, All rights reserved

------------------------------------------------------------------------------


   Processor   Speed            State           Coprocessor State  I/D Cache

   ---------  --------   ---------------------  ----------------- 
-------------

       0      552 MHz    Active                 Functional         512 
kB/1 MB
       1      552 MHz    Idle                   Functional         512 
kB/1 MB

   Central Bus Speed:                   120 MHz

   Available memory:             1073741824 bytes
   Good memory required:           87908352 bytes

   Primary boot path:    FWSCSI.6.0
   Alternate boot path:  SCSI.3.0
   Console path:         SERIAL_1.9600.8.none
   Keyboard path:        USB


CPU 0
NOTICE :  Processor self-tests have been disabled because FASTBOOT is
           enabled.  To enable self-tests, disable FASTBOOT with the 
FASTBOOT
           command in the CONFIGURATION menu and reboot the system.
NOTICE :  Memory has been initialized but not tested because FASTBOOT is
           enabled.  To test memory, disable FASTBOOT with the FASTBOOT
           command in the CONFIGURATION menu and reboot the system.


CPU 1
NOTICE :  Processor self-tests have been disabled because FASTBOOT is
           enabled.  To enable self-tests, disable FASTBOOT with the 
FASTBOOT
           command in the CONFIGURATION menu and reboot the system.


----- Main Menu 
-------------------------------------------------------------

       Command                           Description
       -------                           -----------
       BOot [PRI|ALT|<path>]             Boot from specified path
       PAth [PRI|ALT|CON|KEY [<path>]]   Display or modify a path
       SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices

       COnfiguration [<command>]         Access Configuration menu/commands
       INformation [<command>]           Access Information menu/commands
       SERvice [<command>]               Access Service menu/commands

       DIsplay                           Redisplay the current menu
       HElp [<menu>|<command>]           Display help for menu or command
       RESET                             Restart the system
-----
Main Menu: Enter command > sea


Searching for potential boot device(s)...

This may take several minutes.


To discontinue search, press any key (termination may not be immediate).



    Path Number        Device Path              Device Type

    -----------        -----------------        -----------

    P0                 SCSI.3.0                 TOSHIBA CD-ROM XM-5401TA
    P1                 SCSI.2.0                 HP      C1537A
    P2                 FWSCSI.6.0               FUJITSU MAJ3182MC


Main Menu: Enter command > bo p0

Interact with IPL (Y, N, Q)?> y

INI C740: initialize other path


Booting...

Boot IO Dependent Code (IODC) revision 0
INI C780: load IPL other path
INI CC41: CPU1 memory rendezvous
INI C30C: monarch slave check
INI 10CA: CPU0 initialize system bus arbitration




HARD Booted.

INI C7FF: launch IPL other
palo ipl 1.14 root@duet Sat Apr  8 16:08:16 EDT 2006


Boot image contains:

     0/vmlinux32 4179284 bytes @ 0xc60000

     0/vmlinux64 5784983 bytes @ 0x6db800

     0/ramdisk 4501015 bytes @ 0x287800


Information: No console specified on kernel command line. This is normal.

PALO will choose the console currently used by firmware (serial).Current 
command line:

'0/vmlinux root=/dev/ram initrd=0/ramdisk ramdisk_size=12432' 
console=ttyS0 TERM=vt102

  0: '0/vmlinux

  1: root=/dev/ram

  2: initrd=0/ramdisk

  3: ramdisk_size=12432'

  4: console=ttyS0

  5: TERM=vt102


<#>    edit the numbered field

'b'    boot with this command line

'r'    restore command line

'l'    list dir

? 0

'0/vmlinux32

Current command line:

'0/vmlinux32 root=/dev/ram initrd=0/ramdisk ramdisk_size=12432' 
console=ttyS0 TERM=vt102

  0: '0/vmlinux32

  1: root=/dev/ram

  2: initrd=0/ramdisk

  3: ramdisk_size=12432'

  4: console=ttyS0

  5: TERM=vt102


<#>    edit the numbered field

'b'    boot with this command line

'r'    restore command line

'l'    list dir

? 0 b


Command line for kernel: 'root=/dev/ram ramdisk_size=12432' 
console=ttyS0 TERM=vt102 palo_kernel=0'0/vmlinux32'

Selected kernel: '0/vmlinux32 from partition 0

Selected ramdisk: /ramdisk from partition 0

ELF32 executable

Entry 00100000 first 00100000 n 3

Segment 0 load 00100000 size 2384552 mediaptr 0x1000

Segment 1 load 00347000 size 499712 mediaptr 0x248000

Segment 2 load 003fc000 size 381062 mediaptr 0x2c2000

Loading ramdisk 4501015 bytes @ 3fba4000...

Branching to kernel entry point 0x00100000.  If this is the last

message you see, you may need to switch your console.  This is

a common symptom -- search the FAQ and mailing list at parisc-linux.org


Linux version 2.6.18-3-parisc (Debian 2.6.18-7) (waldi@debian.org) (gcc 
version 4.1.2 20061115 (prerelease) (Debian 4.1.1-20)) #1 Mon Dec 4 
09:17:59 MST 2006
FP[0] enabled: Rev 1 Model 16
The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005d10 00000491 00000000 00000002 781d75ff 100000f0 00000008 
000000b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x3
model 9000/785/J5600
Total Memory: 1024 MB
initrd: 4fba4000-4ffeee17
initrd: reserving 3fba4000-3ffeee17 (mem_max 40000000)
LCD display at f05d0008,f05d0000 registered
Built 1 zonelists.  Total pages: 262144
Kernel command line: root=/dev/ram ramdisk_size=12432' console=ttyS0 
TERM=vt102 palo_kernel=0'0/vmlinux32
PID hash table entries: 4096 (order: 12, 16384 bytes)
start_kernel(): bug: interrupts were enabled early
Console: colour dummy device 160x64
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 1048576k available
Security Framework v1.0.0 initialized
SELinux:  Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 512
checking if image is initramfs... it is
Freeing initrd memory: 4395k freed
NET: Registered protocol family 16
EISA bus registered
Searching for devices...
Found devices:
1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
4. Elroy PCI Bridge at 0xfed34000 [10/2] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
7. Forte W+ 2w at 0xfffa0000 [32] { 0, 0x0, 0x5d1, 0x00004 }
8. Forte W+ 2w at 0xfffa2000 [34] { 0, 0x0, 0x5d1, 0x00004 }
9. Memory at 0xfed10200 [49] { 1, 0x0, 0x09e, 0x00009 }
Enabling regular chassis codes support v0.05
CONFIG_SMP=n  ignoring additional CPUs
CPU: probe of 34 failed with error 1
CPU(s): 1 x PA8600 (PCX-W+) at 552.000000 MHz
Setting cache flush threshold to 1ec0 (1 CPUs online)
SBA found Astro 2.1 at 0xfed00000
Elroy version TR4.0 (0x5) found at 0xfed30000
PCI: Enabled native mode for NS87415 (pif=0x8f)
iosapic: 0xfed30800 : no IRT entry for slot 12, pin 1
iosapic: no IRTE for 0000:00:0c.0 (IRQ not connected?)
iosapic: 0xfed30800 : no IRT entry for slot 13, pin 1
iosapic: no IRTE for 0000:00:0d.0 (IRQ not connected?)
iosapic: 0xfed30800 : no IRT entry for slot 14, pin 4
iosapic: no IRTE for 0000:00:0e.2 (IRQ not connected?)
iosapic: 0xfed30800 : no IRT entry for slot 15, pin 1
iosapic: no IRTE for 0000:00:0f.0 (IRQ not connected?)
iosapic: 0xfed30800 : no IRT entry for slot 15, pin 1
iosapic: no IRTE for 0000:00:0f.1 (IRQ not connected?)
Elroy version TR4.0 (0x5) found at 0xfed32000
Elroy version TR4.0 (0x5) found at 0xfed34000
Elroy version TR4.0 (0x5) found at 0xfed38000
Elroy version TR4.0 (0x5) found at 0xfed3c000
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
TCP established hash table entries: 131072 (order: 7, 524288 bytes)
TCP bind hash table entries: 65536 (order: 6, 262144 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
Enabling PDC chassis warnings support v0.05
unwind_init: start = 0x10348cc0, end = 0x1036d620, entries = 9366
audit: initializing netlink socket (disabled)
audit(1169660597.080:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 1)
SuperIO: Serial port 1 at 0x3f8
SuperIO: Serial port 2 at 0x2f8
SuperIO: Parallel port at 0x378
SuperIO: Floppy controller at 0x3f0
SuperIO: ACPI at 0x7e0
SuperIO: USB regulator enabled
PDC Stable Storage facility v0.30
Soft power switch enabled, polling @ 0xf0400804.
STI GSC/PCI core graphics driver Version 0.9a
STI PCI graphic ROM found at f7000000 (128 kB), fb at fb000000 (16 MB)
     id 35acda16-9a02587, conforms to spec rev. 8.0c
     graphics card name: HPA4982A
sticon: Initializing STI text console.
Console: switching to colour STI console 160x64
stifb: 'HPA4982A' (id: 0x35acda16) not supported.
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 3) is a 16550A
serial8250: ttyS1 at I/O 0x2f8 (irq = 4) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 12432K size 1024 blocksize
mice: PS/2 mouse device common for all mice
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
Freeing unused kernel memory: 328k freed
SCSI subsystem initialized
sym0: <875> rev 0x4 at pci 0000:00:01.0 irq 65
Linux Tulip driver version 1.1.13-NAPI (May 11, 2002)
sym0: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
sym0: SCSI BUS has been reset.
scsi0 : sym-2.2.3
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
usbcore: registered new driver usbfs
usbcore: registered new driver hub
sym1: <896> rev 0x4 at pci 0000:00:0f.0 irq 1
sym1: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
IRQ handler type mismatch for IRQ 1
Backtrace:
  [<1014a834>] setup_irq+0x204/0x228
  [<1014a904>] request_irq+0xac/0xe8
  [<000a7fa8>] sym2_probe+0x624/0x830 [sym53c8xx]
  [<1022d2e8>] pci_device_probe+0x54/0x94
  [<1026d8cc>] driver_probe_device+0x58/0xdc
  [<1026da98>] __driver_attach+0x84/0xf0
  [<1026d1e8>] bus_for_each_dev+0x58/0x9c
  [<1026cd74>] bus_add_driver+0x78/0x148
  [<1022d4e0>] __pci_register_driver+0x44/0x78
  [<00031124>] sym2_init+0xfc/0x124 [sym53c8xx]

sym1: request irq 1 failure
sym1: giving up ...
Trying to free already-free IRQ 1
sym1: <896> rev 0x4 at pci 0000:00:0f.1 irq 1
sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
IRQ handler type mismatch for IRQ 1
Backtrace:
  [<1014a834>] setup_irq+0x204/0x228
  [<1014a904>] request_irq+0xac/0xe8
  [<000a7fa8>] sym2_probe+0x624/0x830 [sym53c8xx]
  [<1022d2e8>] pci_device_probe+0x54/0x94
  [<1026d8cc>] driver_probe_device+0x58/0xdc
  [<1026da98>] __driver_attach+0x84/0xf0
  [<1026d1e8>] bus_for_each_dev+0x58/0x9c
  [<1026cd74>] bus_add_driver+0x78/0x148
  [<1022d4e0>] __pci_register_driver+0x44/0x78
  [<00031124>] sym2_init+0xfc/0x124 [sym53c8xx]

sym1: request irq 1 failure
sym1: giving up ...
Trying to free already-free IRQ 1
sym1: <875> rev 0x4 at pci 0000:02:02.0 irq 66
tulip0: no phy info, aborting mtable build
tulip0:  MII transceiver #1 config 1200 status 7809 advertising 01e1.
eth0: Digital DS21142/43 Tulip rev 65 at Port 0x1000, 00:10:83:FF:1E:7E, 
IRQ 2.
NS87415: IDE controller at PCI slot 0000:00:0e.0
NS87415: chipset revision 3
NS87415: 100% native mode on irq 7
     ide0: BM-DMA at 0x0a00-0x0a07, BIOS settings: hda:DMA, hdb:DMA
     ide1: BM-DMA at 0x0a08-0x0a0f, BIOS settings: hdc:DMA, hdd:DMA
sym1: PA-RISC Firmware, ID 7, Fast-20, SE, parity checking
sym1: SCSI BUS has been reset.
scsi3 : sym-2.2.3
ohci_hcd 0000:00:0e.2: OHCI Host Controller
ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
IRQ handler type mismatch for IRQ 1
Backtrace:
  [<1014a834>] setup_irq+0x204/0x228
  [<1014a904>] request_irq+0xac/0xe8
  [<001086e4>] usb_add_hcd+0x324/0x654 [usbcore]
  [<00111404>] usb_hcd_pci_probe+0x21c/0x2c0 [usbcore]
  [<1022d2e8>] pci_device_probe+0x54/0x94
  [<1026d8cc>] driver_probe_device+0x58/0xdc
  [<1026da98>] __driver_attach+0x84/0xf0
  [<1026d1e8>] bus_for_each_dev+0x58/0x9c
  [<1026cd74>] bus_add_driver+0x78/0x148
  [<1022d4e0>] __pci_register_driver+0x44/0x78
  [<10143d1c>] sys_init_module+0x123c/0x13ec
  [<1010c134>] syscall_exit+0x0/0x14

ohci_hcd 0000:00:0e.2: request interrupt 1 failed
ohci_hcd 0000:00:0e.2: USB bus 1 deregistered
ohci_hcd 0000:00:0e.2: init 0000:00:0e.2 fail, -16
ohci_hcd: probe of 0000:00:0e.2 failed with error -16

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From - Thu Nov 08 21:37:02 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Michael Greene <listsnews@cox.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] Re: Help with J5600 (Model: 9000/785/J5600)
Date: Fri, 26 Jan 2007 15:01:38 -0500
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	<20070126000539.GB13938@athena.road.mcmartin.ca>
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Cc: parisc-linux@parisc-linux.org
To: Kyle McMartin <kyle@parisc-linux.org>
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Kyle McMartin wrote:
> On Thu, Jan 25, 2007 at 06:52:39PM -0500, Michael Greene wrote:
>> I am trying to get any version of hppa linux running on an old J5600, 
>> <snip>
>> SBA found Astro 2.1 at 0xfed00000
>> Elroy version TR4.0 (0x5) found at 0xfed30000
>> PCI: Enabled native mode for NS87415 (pif=0x8f)
>> iosapic: 0xfed30800 : no IRT entry for slot 12, pin 1
>> iosapic: no IRTE for 0000:00:0c.0 (IRQ not connected?)
>> iosapic: 0xfed30800 : no IRT entry for slot 13, pin 1
>> iosapic: no IRTE for 0000:00:0d.0 (IRQ not connected?)
>> iosapic: 0xfed30800 : no IRT entry for slot 14, pin 4
>> iosapic: no IRTE for 0000:00:0e.2 (IRQ not connected?)
>> iosapic: 0xfed30800 : no IRT entry for slot 15, pin 1
>> iosapic: no IRTE for 0000:00:0f.0 (IRQ not connected?)
>> iosapic: 0xfed30800 : no IRT entry for slot 15, pin 1
>> iosapic: no IRTE for 0000:00:0f.1 (IRQ not connected?)
>> Elroy version TR4.0 (0x5) found at 0xfed32000
> 
> Do you have any PCI cards in this machine? Something is badly
> broken in the firmware.

Ok, I was wrong:

I/O MODULE INFORMATION

 
IODC IODC
Path         Decimal     Type                  Location   HVER SVER 
Vers Dep
------------ ----------- --------------------- ---------- ---- ---- 
---- ----
PCI1         10/0/1/0    SCSI                  slot 1     0070 a300 
0x00 0x00
LAN          10/0/12/0   Ethernet              built-in   0040 a200 
0x02 0x00
AUDIO        10/0/13/0   Audio                 built-in
IDE          10/0/14/0   IDE                   built-in   0040 a300 
0x00 0x00
SUPERIO MISC 10/0/14/1   Bridge Device         built-in
SERIAL_1     10/0/14/1/1 RS232 Port            built-in   0040 8c00 
0x01 0x00
SERIAL_2     10/0/14/1/2 RS232 Port            built-in   0040 8c00 
0x01 0x00
PARALLEL     10/0/14/1/3 Parallel Port         built-in
USB          10/0/14/2   USB                   built-in   0040 a900 
0x98 0x00
SCSI         10/0/15/0   SCSI                  built-in   0040 a300 
0x00 0x00
FWSCSI       10/0/15/1   SCSI                  built-in   0040 a300 
0x00 0x00
PCI2         10/2/2/0    SCSI                  slot 2     0070 a300 
0x00 0x00
GRAPHICS(7)  10/6/7/0    HPA4982A              slot 7     0070 8500 
0x01 0x00

There were 2 A4976A PCI Fast Wide Differential SCSI Adapter installed 
(PCI1 and PCI2). I pulled both cards and the system boots fine.

Mike


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From: Kyle McMartin <kyle@parisc-linux.org>
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Subject: Re: [parisc-linux] Help with J5600 (Model: 9000/785/J5600)
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On Thu, Jan 25, 2007 at 06:52:39PM -0500, Michael Greene wrote:
> I am trying to get any version of hppa linux running on an old J5600, 
> <snip>
> SBA found Astro 2.1 at 0xfed00000
> Elroy version TR4.0 (0x5) found at 0xfed30000
> PCI: Enabled native mode for NS87415 (pif=0x8f)
> iosapic: 0xfed30800 : no IRT entry for slot 12, pin 1
> iosapic: no IRTE for 0000:00:0c.0 (IRQ not connected?)
> iosapic: 0xfed30800 : no IRT entry for slot 13, pin 1
> iosapic: no IRTE for 0000:00:0d.0 (IRQ not connected?)
> iosapic: 0xfed30800 : no IRT entry for slot 14, pin 4
> iosapic: no IRTE for 0000:00:0e.2 (IRQ not connected?)
> iosapic: 0xfed30800 : no IRT entry for slot 15, pin 1
> iosapic: no IRTE for 0000:00:0f.0 (IRQ not connected?)
> iosapic: 0xfed30800 : no IRT entry for slot 15, pin 1
> iosapic: no IRTE for 0000:00:0f.1 (IRQ not connected?)
> Elroy version TR4.0 (0x5) found at 0xfed32000

Do you have any PCI cards in this machine? Something is badly
broken in the firmware.
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Subject: [parisc-linux] an ultimate question about "at least 7 insn"
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Xref: news.gmane.org gmane.linux.ports.parisc:25423

Hello Grant,

Some time ago we spoke about some programming note like in pa11_acd.pdf:
[snip]
Software may rely upon this instruction translation in order to improve
performance in process dispatch. For example, in this code sequence:
    SSM 0,gr0       ; initial RSM, SSM or MTSM
    LDW             ; set up process state
    .               ; must be at least 7 instructions
    .               ; between the system mask instrs
    .
    LDW
    RSM 8,gr0       ; set PSW Q-bit to 0
    MTCTL reg1,cr20 ; set up IIASQ
[snip]

My question: is that request of 7 insn is hard-coded somewhere in silicon=
 or
much more a logical value because of cache line size (e.g. 32 byte on a d=
380
and as an insn is 32 bit wide =3D=3D 4 byte)? 

Why? because I noticed that recent system like n4k seems to have a bigger=

cacheline (according jda patch 64 byte), though.

Tia,
    Joel---=0AScarlet One - Combinez l'ADSL avec la telephonie fixe illim=
itee et epargnez 400 euros=0Ahttp://www.scarlet.be =0A

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On Wed, Jan 31, 2007 at 11:00:38AM +0100, Joel Soete wrote:
> Hello Grant,
> 
> Some time ago we spoke about some programming note like in pa11_acd.pdf:
> [snip]
> Software may rely upon this instruction translation in order to improve
> performance in process dispatch. For example, in this code sequence:
>     SSM 0,gr0       ; initial RSM, SSM or MTSM
>     LDW             ; set up process state
>     .               ; must be at least 7 instructions
>     .               ; between the system mask instrs
>     .
>     LDW
>     RSM 8,gr0       ; set PSW Q-bit to 0
>     MTCTL reg1,cr20 ; set up IIASQ
> [snip]
> 
> My question: is that request of 7 insn is hard-coded somewhere in silicon or
> much more a logical value because of cache line size (e.g. 32 byte on a d380
> and as an insn is 32 bit wide == 4 byte)?
> 

I believe the pipeline is 8 stages deep on pre-pa8800 processors, which
basically means we're insuring there's no dependency on the effect of
the SSM from when it is decoded to when it retires. (This could also have
been implemented completely in hardware by stalling the pipeline once
the processor decoded the SSM, no clue why it wasn't... jsm?)
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Hi all,

hppa-nat-linux.c relies on autogenerated header asm/offsets.h which is no longer included in our linux-headers packages.

What would be the best way to fix this issue ?

Copy the defines in hppa-nat-linux.c itself ?
Include a copy of this file in gdb's sources ?

I know ppc moved those includes into gcc. What's your position guys ?

Thanks,
  Guy  

-- 
Guy Martin
Gentoo Linux - HPPA port Lead
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>> tst-timer4.out :
>> clock_gettime returned timespec = { 1170787417, 996313000 }
>> clock_getres returned timespec = { 0, 4000250 }
> 
> Unknown.

> Linux hake 2.6.19.2 #2 Thu Feb 1 19:58:15 EST 2007 parisc PA8600 (PCX-W+) 

I don't know this test, but it might be fixed with a newer Linux kernel,
which includes those patches:

[GENERIC_TIME patchset for parisc]:
http://git.parisc-linux.org/?p=linux-2.6.git;a=commit;h=b6de83b58b8b07f057deacdef8a95b6c32d1c4e6

[disable cr16 clocksource when multiple CPUs are online]:
http://git.parisc-linux.org/?p=linux-2.6.git;a=commit;h=f70a979c843e4610edfb2a316648fe8ae8718f69

Helge

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Carlos O'Donell wrote:

> On 2/6/07, Matthew Wilcox <matthew@wil.cx> wrote:
>> On Mon, Feb 05, 2007 at 10:13:01PM -0500, Carlos O'Donell wrote:
>> > make[2]: *** [/libc-tls-nptl/io/tst-fstatat.out] Error 1
>> > make[2]: *** [/libc-tls-nptl/io/tst-futimesat.out] Error 1
>> > make[2]: *** [/libc-tls-nptl/io/tst-renameat.out] Error 1
>> > make[2]: *** [/libc-tls-nptl/io/tst-fchmodat.out] Error 1
>> > make[2]: *** [/libc-tls-nptl/io/tst-symlinkat.out] Error 1
>> > make[2]: *** [/libc-tls-nptl/io/tst-linkat.out] Error 1
>> > make[2]: *** [/libc-tls-nptl/io/tst-mkdirat.out] Error 1
>> > make[2]: *** [/libc-tls-nptl/io/tst-mkfifoat.out] Error 1
>>
>> I guess we need to hook up the *at syscalls.
> 
> Helge hooked them up already? This build uses an old header set and
> doesn't detect the *at functions. The fallbacks have likely never been
> tested, and as always... are rotten and don't work properly.

TIF_RESTORE_SIGMASK support ?
I think the honour goes to Kyle:
http://git.parisc-linux.org/?p=linux-2.6.git;a=commitdiff;h=eeb14f5d284eacfa939153302dadfb7dc134ff9e;hp=dc914919be25ee5e98df90558c591d76d4b231d4

Helge

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Subject: [parisc-linux] [PATCH] Sync compat getdents on ia64 and parisc
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From: Alexandr Andreev <aandreev@openvz.org>

Add VERIFY_WRITE check in the beginning like compat_sys_getdents()
[EINVAL vs EFAULT on ia64.
 EFAULT on parisc if put_user() fails. --adobriyan]

Can arch maintainers look if compat_sys_getdents() is OK for them?

Signed-off-by: Alexandr Andreev <aandreev@openvz.org>
Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
---

 arch/ia64/ia32/sys_ia32.c         |   10 +++++++---
 arch/parisc/kernel/sys_parisc32.c |   10 ++++++++--
 2 files changed, 15 insertions(+), 5 deletions(-)

--- a/arch/ia64/ia32/sys_ia32.c
+++ b/arch/ia64/ia32/sys_ia32.c
@@ -1267,6 +1267,10 @@ sys32_getdents (unsigned int fd, struct 
 	struct getdents32_callback buf;
 	int error;
 
+	error = -EFAULT;
+	if (!access_ok(VERIFY_WRITE, dirent, count))
+		goto out;
+
 	error = -EBADF;
 	file = fget(fd);
 	if (!file)
@@ -1283,10 +1287,10 @@ sys32_getdents (unsigned int fd, struct 
 	error = buf.error;
 	lastdirent = buf.previous;
 	if (lastdirent) {
-		error = -EINVAL;
 		if (put_user(file->f_pos, &lastdirent->d_off))
-			goto out_putf;
-		error = count - buf.count;
+			error = -EFAULT;
+		else
+			error = count - buf.count;
 	}
 
 out_putf:
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -350,6 +350,10 @@ sys32_getdents (unsigned int fd, void __
 	struct getdents32_callback buf;
 	int error;
 
+	error = -EFAULT;
+	if (!access_ok(VERIFY_WRITE, dirent, count))
+		goto out;
+
 	error = -EBADF;
 	file = fget(fd);
 	if (!file)
@@ -366,8 +370,10 @@ sys32_getdents (unsigned int fd, void __
 	error = buf.error;
 	lastdirent = buf.previous;
 	if (lastdirent) {
-		put_user(file->f_pos, &lastdirent->d_off);
-		error = count - buf.count;
+		if (put_user(file->f_pos, &lastdirent->d_off))
+			error = -EFAULT;
+		else
+			error = count - buf.count;
 	}
 
 out_putf:

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What compiler is supposed to do upon seeing

	char __attribute__((__section__ (".init.data")))	command_line[1024]
	     __attribute__((__section__(".data.read_mostly")));

?

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---

 arch/parisc/kernel/setup.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -45,7 +45,7 @@ #include <asm/pdc_chassis.h>
 #include <asm/io.h>
 #include <asm/setup.h>
 
-char	__initdata command_line[COMMAND_LINE_SIZE] __read_mostly;
+static char __initdata command_line[COMMAND_LINE_SIZE];
 
 /* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */
 struct proc_dir_entry * proc_runway_root __read_mostly = NULL;

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Xref: news.gmane.org gmane.linux.ports.parisc:25430

hilkbd: Kill compiler warning and fix comment dyslexia

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 drivers/input/keyboard/hilkbd.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-m68k-2.6.21.orig/drivers/input/keyboard/hilkbd.c
+++ linux-m68k-2.6.21/drivers/input/keyboard/hilkbd.c
@@ -52,7 +52,7 @@ MODULE_LICENSE("GPL v2");
 
 #elif defined(CONFIG_HP300)
 
- #define HILBASE		0xf0428000 /* HP300 (m86k) port address */
+ #define HILBASE		0xf0428000UL /* HP300 (m68k) port address */
  #define HIL_DATA		0x1
  #define HIL_CMD		0x3
  #define HIL_IRQ		2

--
Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

_______________________________________________
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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [patch 10/33] hilkbd: Kill compiler warning and fix
	comment dyslexia
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Xref: news.gmane.org gmane.linux.ports.parisc:25431

hilkbd: Kill compiler warning and fix comment dyslexia

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 drivers/input/keyboard/hilkbd.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-m68k-2.6.21.orig/drivers/input/keyboard/hilkbd.c
+++ linux-m68k-2.6.21/drivers/input/keyboard/hilkbd.c
@@ -52,7 +52,7 @@ MODULE_LICENSE("GPL v2");
 
 #elif defined(CONFIG_HP300)
 
- #define HILBASE		0xf0428000 /* HP300 (m86k) port address */
+ #define HILBASE		0xf0428000UL /* HP300 (m68k) port address */
  #define HIL_DATA		0x1
  #define HIL_CMD		0x3
  #define HIL_IRQ		2

--
Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

_______________________________________________
parisc-linux mailing list
parisc-linux@lists.parisc-linux.org
http://lists.parisc-linux.org/mailman/listinfo/parisc-linux



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From: Simon Arlott <simon@fire.lp0.eu>
Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [PATCH] spelling fixes: arch/parisc/
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Xref: news.gmane.org gmane.linux.ports.parisc:25432

Spelling fixes in arch/parisc/.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
---
 arch/parisc/kernel/firmware.c    |    4 ++--
 arch/parisc/kernel/perf.c        |   12 ++++++------
 arch/parisc/kernel/processor.c   |    8 ++++----
 arch/parisc/kernel/setup.c       |    2 +-
 arch/parisc/kernel/signal32.h    |    2 +-
 arch/parisc/kernel/smp.c         |    6 +++---
 arch/parisc/kernel/time.c        |    2 +-
 arch/parisc/kernel/traps.c       |    2 +-
 arch/parisc/math-emu/dbl_float.h |    4 ++--
 arch/parisc/math-emu/dfsqrt.c    |    2 +-
 arch/parisc/math-emu/sfsqrt.c    |    2 +-
 arch/parisc/math-emu/sgl_float.h |    4 ++--
 arch/parisc/mm/init.c            |   10 +++++-----
 13 files changed, 30 insertions(+), 30 deletions(-)

diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 39dc835..fd6552c 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -634,7 +634,7 @@ EXPORT_SYMBOL(pdc_lan_station_id);
  * pdc_stable_read - Read data from Stable Storage.
  * @staddr: Stable Storage address to access.
  * @memaddr: The memory address where Stable Storage data shall be copied.
- * @count: number of bytes to transfert. count is multiple of 4.
+ * @count: number of bytes to transfer. count is multiple of 4.
  *
  * This PDC call reads from the Stable Storage address supplied in staddr
  * and copies count bytes to the memory address memaddr.
@@ -660,7 +660,7 @@ EXPORT_SYMBOL(pdc_stable_read);
  * pdc_stable_write - Write data to Stable Storage.
  * @staddr: Stable Storage address to access.
  * @memaddr: The memory address where Stable Storage data shall be read from.
- * @count: number of bytes to transfert. count is multiple of 4.
+ * @count: number of bytes to transfer. count is multiple of 4.
  *
  * This PDC call reads count bytes from the supplied memaddr address,
  * and copies count bytes to the Stable Storage address staddr.
diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index a46bc62..d324021 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -171,7 +171,7 @@ static const uint64_t perf_bitmasks[] = {
 
 /*
  * Write control bitmasks for Pa-8700 processor given
- * somethings have changed slightly.
+ * some things have changed slightly.
  */
 static const uint64_t perf_bitmasks_piranha[] = {
 	0x0000000000000000ul,     /* first dbl word must be zero */
@@ -574,27 +574,27 @@ static int perf_stop_counters(uint32_t *raddr)
 		if (!perf_rdr_read_ubuf(16, userbuf))
 			return -13;
 
-		/* Counter0 is bits 1398 thru 1429 */
+		/* Counter0 is bits 1398 to 1429 */
 		tmp64 =  (userbuf[21] << 22) & 0x00000000ffc00000;
 		tmp64 |= (userbuf[22] >> 42) & 0x00000000003fffff;
 		/* OR sticky0 (bit 1430) to counter0 bit 32 */
 		tmp64 |= (userbuf[22] >> 10) & 0x0000000080000000;
 		raddr[0] = (uint32_t)tmp64;
 
-		/* Counter1 is bits 1431 thru 1462 */
+		/* Counter1 is bits 1431 to 1462 */
 		tmp64 =  (userbuf[22] >> 9) & 0x00000000ffffffff;
 		/* OR sticky1 (bit 1463) to counter1 bit 32 */
 		tmp64 |= (userbuf[22] << 23) & 0x0000000080000000;
 		raddr[1] = (uint32_t)tmp64;
 
-		/* Counter2 is bits 1464 thru 1495 */
+		/* Counter2 is bits 1464 to 1495 */
 		tmp64 =  (userbuf[22] << 24) & 0x00000000ff000000;
 		tmp64 |= (userbuf[23] >> 40) & 0x0000000000ffffff;
 		/* OR sticky2 (bit 1496) to counter2 bit 32 */
 		tmp64 |= (userbuf[23] >> 8) & 0x0000000080000000;
 		raddr[2] = (uint32_t)tmp64;
 		
-		/* Counter3 is bits 1497 thru 1528 */
+		/* Counter3 is bits 1497 to 1528 */
 		tmp64 =  (userbuf[23] >> 7) & 0x00000000ffffffff;
 		/* OR sticky3 (bit 1529) to counter3 bit 32 */
 		tmp64 |= (userbuf[23] << 25) & 0x0000000080000000;
@@ -616,7 +616,7 @@ static int perf_stop_counters(uint32_t *raddr)
 		userbuf[23] = 0;
 
 		/* 
-		 * Write back the zero'ed bytes + the image given
+		 * Write back the zeroed bytes + the image given
 		 * the read was destructive.
 		 */
 		perf_rdr_write(16, userbuf);
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index dd5d0cb..15992f4 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -63,7 +63,7 @@ extern int update_cr16_clocksource(void);	/* from time.c */
 ** will call register_parisc_driver(&cpu_driver) before calling do_inventory().
 **
 ** The goal of consolidating CPU initialization into one place is
-** to make sure all CPU's get initialized the same way.
+** to make sure all CPUs get initialized the same way.
 ** The code path not shared is how PDC hands control of the CPU to the OS.
 ** The initialization of OS data structures is the same (done below).
 */
@@ -166,7 +166,7 @@ static int __init processor_probe(struct parisc_device *dev)
 #endif
 
 	/*
-	** CONFIG_SMP: init_smp_config() will attempt to get CPU's into
+	** CONFIG_SMP: init_smp_config() will attempt to get CPUs into
 	** OS control. RENDEZVOUS is the default state - see mem_set above.
 	**	p->state = STATE_RENDEZVOUS;
 	*/
@@ -334,7 +334,7 @@ int __init init_per_cpu(int cpunum)
 }
 
 /*
- * Display cpu info for all cpu's.
+ * Display CPU info for all CPUs.
  */
 int
 show_cpuinfo (struct seq_file *m, void *v)
@@ -393,7 +393,7 @@ static struct parisc_driver cpu_driver __read_mostly = {
 };
 
 /**
- * processor_init - Processor initalization procedure.
+ * processor_init - Processor initialization procedure.
  *
  * Register this driver.
  */
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 9818919..9d2a1d5 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -162,7 +162,7 @@ void __init setup_arch(char **cmdline_p)
 }
 
 /*
- * Display cpu info for all cpu's.
+ * Display CPU info for all CPUs.
  * for parisc this is in processor.c
  */
 extern int show_cpuinfo (struct seq_file *m, void *v);
diff --git a/arch/parisc/kernel/signal32.h b/arch/parisc/kernel/signal32.h
index e39b38a..c780084 100644
--- a/arch/parisc/kernel/signal32.h
+++ b/arch/parisc/kernel/signal32.h
@@ -113,7 +113,7 @@ int copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from);
 /* In a deft move of uber-hackery, we decide to carry the top half of all
  * 64-bit registers in a non-portable, non-ABI, hidden structure.
  * Userspace can read the hidden structure if it *wants* but is never
- * guaranteed to be in the same place. Infact the uc_sigmask from the
+ * guaranteed to be in the same place. In fact the uc_sigmask from the
  * ucontext_t structure may push the hidden register file downards
  */
 struct compat_regfile {
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 6ba9257..4bf7cd1 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -8,7 +8,7 @@
 ** Lots of stuff stolen from arch/alpha/kernel/smp.c
 ** ...and then parisc stole from arch/ia64/kernel/smp.c. Thanks David! :^)
 **
-** Thanks to John Curry and Ullas Ponnadi. I learned alot from their work.
+** Thanks to John Curry and Ullas Ponnadi. I learned a lot from their work.
 ** -grant (1/12/2001)
 **
 **	This program is free software; you can redistribute it and/or modify
@@ -419,7 +419,7 @@ smp_cpu_init(int cpunum)
 		BUG();
 	enter_lazy_tlb(&init_mm, current);
 
-	init_IRQ();   /* make sure no IRQ's are enabled or pending */
+	init_IRQ();   /* make sure no IRQs are enabled or pending */
 	start_cpu_itimer();
 }
 
@@ -552,7 +552,7 @@ void __devinit smp_prepare_boot_cpu(void)
 
 /*
 ** inventory.c:do_inventory() hasn't yet been run and thus we
-** don't 'discover' the additional CPU's until later.
+** don't 'discover' the additional CPUs until later.
 */
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 07a991a..8b3062a 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -191,7 +191,7 @@ int update_cr16_clocksource(void)
 {
 	int change = 0;
 
-	/* since the cr16 cycle counters are not syncronized across CPUs,
+	/* since the cr16 cycle counters are not synchronized across CPUs,
 	   we'll check if we should switch to a safe clocksource: */
 	if (clocksource_cr16.rating != 0 && num_online_cpus() > 1) {
 		clocksource_change_rating(&clocksource_cr16, 0);
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 745ff74..6c05545 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -615,7 +615,7 @@ void handle_interruption(int code, struct pt_regs *regs)
 		
 	case 13:
 		/* Conditional Trap
-		   The condition succees in an instruction which traps 
+		   The condition succeeds in an instruction which traps 
 		   on condition  */
 		if(user_mode(regs)){
 			si.si_signo = SIGFPE;
diff --git a/arch/parisc/math-emu/dbl_float.h b/arch/parisc/math-emu/dbl_float.h
index 1570e2e..0c2fa9a 100644
--- a/arch/parisc/math-emu/dbl_float.h
+++ b/arch/parisc/math-emu/dbl_float.h
@@ -22,7 +22,7 @@
     PA header file -- do not include this header file for non-PA builds.
 #endif
 
-/* 32-bit word grabing functions */
+/* 32-bit word grabbing functions */
 #define Dbl_firstword(value) Dallp1(value)
 #define Dbl_secondword(value) Dallp2(value)
 #define Dbl_thirdword(value) dummy_location
@@ -37,7 +37,7 @@
 #define Dbl_allp1(object) Dallp1(object)
 #define Dbl_allp2(object) Dallp2(object)
 
-/* dbl_and_signs ands the sign bits of each argument and puts the result
+/* dbl_and_signs ANDs the sign bits of each argument and puts the result
  * into the first argument. dbl_or_signs ors those same sign bits */
 #define Dbl_and_signs( src1dst, src2)		\
     Dallp1(src1dst) = (Dallp1(src2)|~((unsigned int)1<<31)) & Dallp1(src1dst)
diff --git a/arch/parisc/math-emu/dfsqrt.c b/arch/parisc/math-emu/dfsqrt.c
index b6ed106..9542c6d 100644
--- a/arch/parisc/math-emu/dfsqrt.c
+++ b/arch/parisc/math-emu/dfsqrt.c
@@ -76,7 +76,7 @@ dbl_fsqrt(
                 }
                 /*
                  * Return quiet NaN or positive infinity.
-		 *  Fall thru to negative test if negative infinity.
+		 *  Fall through to negative test if negative infinity.
                  */
 		if (Dbl_iszero_sign(srcp1) || 
 		    Dbl_isnotzero_mantissa(srcp1,srcp2)) {
diff --git a/arch/parisc/math-emu/sfsqrt.c b/arch/parisc/math-emu/sfsqrt.c
index cd3f6db..4657a12 100644
--- a/arch/parisc/math-emu/sfsqrt.c
+++ b/arch/parisc/math-emu/sfsqrt.c
@@ -76,7 +76,7 @@ sgl_fsqrt(
                 }
                 /*
                  * Return quiet NaN or positive infinity.
-		 *  Fall thru to negative test if negative infinity.
+		 *  Fall through to negative test if negative infinity.
                  */
 		if (Sgl_iszero_sign(src) || Sgl_isnotzero_mantissa(src)) {
                 	*dstptr = src;
diff --git a/arch/parisc/math-emu/sgl_float.h b/arch/parisc/math-emu/sgl_float.h
index 82519a5..4ee4cc9 100644
--- a/arch/parisc/math-emu/sgl_float.h
+++ b/arch/parisc/math-emu/sgl_float.h
@@ -23,7 +23,7 @@
     PA header file -- do not include this header file for non-PA builds.
 #endif
 
-/* 32-bit word grabing functions */
+/* 32-bit word grabbing functions */
 #define Sgl_firstword(value) Sall(value)
 #define Sgl_secondword(value) dummy_location
 #define Sgl_thirdword(value) dummy_location
@@ -36,7 +36,7 @@
 #define Sgl_exponentmantissa(object) Sexponentmantissa(object)
 #define Sgl_all(object) Sall(object)
 
-/* sgl_and_signs ands the sign bits of each argument and puts the result
+/* sgl_and_signs ANDs the sign bits of each argument and puts the result
  * into the first argument. sgl_or_signs ors those same sign bits */
 #define Sgl_and_signs( src1dst, src2)		\
     Sall(src1dst) = (Sall(src2)|~((unsigned int)1<<31)) & Sall(src1dst)
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 75ea9f2..e724b36 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -890,7 +890,7 @@ void __init paging_init(void)
 #ifdef CONFIG_PA20
 
 /*
- * Currently, all PA20 chips have 18 bit protection id's, which is the
+ * Currently, all PA20 chips have 18 bit protection IDs, which is the
  * limiting factor (space ids are 32 bits).
  */
 
@@ -899,10 +899,10 @@ void __init paging_init(void)
 #else
 
 /*
- * Currently we have a one-to-one relationship between space id's and
- * protection id's. Older parisc chips (PCXS, PCXT, PCXL, PCXL2) only
- * support 15 bit protection id's, so that is the limiting factor.
- * PCXT' has 18 bit protection id's, but only 16 bit spaceids, so it's
+ * Currently we have a one-to-one relationship between space IDs and
+ * protection IDs. Older parisc chips (PCXS, PCXT, PCXL, PCXL2) only
+ * support 15 bit protection IDs, so that is the limiting factor.
+ * PCXT' has 18 bit protection IDs, but only 16 bit spaceids, so it's
  * probably not worth the effort for a special case here.
  */
 
-- 
1.5.0.1

-- 
Simon Arlott
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Xref: news.gmane.org gmane.linux.ports.parisc:25433

On Fri, May 11, 2007 at 08:42:34PM +0100, Simon Arlott wrote:
> Spelling fixes in arch/parisc/.
> 
> Signed-off-by: Simon Arlott <simon@fire.lp0.eu>

Acked-by: Grant Grundler <grundler@parisc-linux.org>

thanks!
grant

> ---
> arch/parisc/kernel/firmware.c    |    4 ++--
> arch/parisc/kernel/perf.c        |   12 ++++++------
> arch/parisc/kernel/processor.c   |    8 ++++----
> arch/parisc/kernel/setup.c       |    2 +-
> arch/parisc/kernel/signal32.h    |    2 +-
> arch/parisc/kernel/smp.c         |    6 +++---
> arch/parisc/kernel/time.c        |    2 +-
> arch/parisc/kernel/traps.c       |    2 +-
> arch/parisc/math-emu/dbl_float.h |    4 ++--
> arch/parisc/math-emu/dfsqrt.c    |    2 +-
> arch/parisc/math-emu/sfsqrt.c    |    2 +-
> arch/parisc/math-emu/sgl_float.h |    4 ++--
> arch/parisc/mm/init.c            |   10 +++++-----
> 13 files changed, 30 insertions(+), 30 deletions(-)
> 
> diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
> index 39dc835..fd6552c 100644
> --- a/arch/parisc/kernel/firmware.c
> +++ b/arch/parisc/kernel/firmware.c
> @@ -634,7 +634,7 @@ EXPORT_SYMBOL(pdc_lan_station_id);
>  * pdc_stable_read - Read data from Stable Storage.
>  * @staddr: Stable Storage address to access.
>  * @memaddr: The memory address where Stable Storage data shall be copied.
> - * @count: number of bytes to transfert. count is multiple of 4.
> + * @count: number of bytes to transfer. count is multiple of 4.
>  *
>  * This PDC call reads from the Stable Storage address supplied in staddr
>  * and copies count bytes to the memory address memaddr.
> @@ -660,7 +660,7 @@ EXPORT_SYMBOL(pdc_stable_read);
>  * pdc_stable_write - Write data to Stable Storage.
>  * @staddr: Stable Storage address to access.
>  * @memaddr: The memory address where Stable Storage data shall be read 
>  from.
> - * @count: number of bytes to transfert. count is multiple of 4.
> + * @count: number of bytes to transfer. count is multiple of 4.
>  *
>  * This PDC call reads count bytes from the supplied memaddr address,
>  * and copies count bytes to the Stable Storage address staddr.
> diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
> index a46bc62..d324021 100644
> --- a/arch/parisc/kernel/perf.c
> +++ b/arch/parisc/kernel/perf.c
> @@ -171,7 +171,7 @@ static const uint64_t perf_bitmasks[] = {
> 
> /*
>  * Write control bitmasks for Pa-8700 processor given
> - * somethings have changed slightly.
> + * some things have changed slightly.
>  */
> static const uint64_t perf_bitmasks_piranha[] = {
> 	0x0000000000000000ul,     /* first dbl word must be zero */
> @@ -574,27 +574,27 @@ static int perf_stop_counters(uint32_t *raddr)
> 		if (!perf_rdr_read_ubuf(16, userbuf))
> 			return -13;
> 
> -		/* Counter0 is bits 1398 thru 1429 */
> +		/* Counter0 is bits 1398 to 1429 */
> 		tmp64 =  (userbuf[21] << 22) & 0x00000000ffc00000;
> 		tmp64 |= (userbuf[22] >> 42) & 0x00000000003fffff;
> 		/* OR sticky0 (bit 1430) to counter0 bit 32 */
> 		tmp64 |= (userbuf[22] >> 10) & 0x0000000080000000;
> 		raddr[0] = (uint32_t)tmp64;
> 
> -		/* Counter1 is bits 1431 thru 1462 */
> +		/* Counter1 is bits 1431 to 1462 */
> 		tmp64 =  (userbuf[22] >> 9) & 0x00000000ffffffff;
> 		/* OR sticky1 (bit 1463) to counter1 bit 32 */
> 		tmp64 |= (userbuf[22] << 23) & 0x0000000080000000;
> 		raddr[1] = (uint32_t)tmp64;
> 
> -		/* Counter2 is bits 1464 thru 1495 */
> +		/* Counter2 is bits 1464 to 1495 */
> 		tmp64 =  (userbuf[22] << 24) & 0x00000000ff000000;
> 		tmp64 |= (userbuf[23] >> 40) & 0x0000000000ffffff;
> 		/* OR sticky2 (bit 1496) to counter2 bit 32 */
> 		tmp64 |= (userbuf[23] >> 8) & 0x0000000080000000;
> 		raddr[2] = (uint32_t)tmp64;
> 		
> -		/* Counter3 is bits 1497 thru 1528 */
> +		/* Counter3 is bits 1497 to 1528 */
> 		tmp64 =  (userbuf[23] >> 7) & 0x00000000ffffffff;
> 		/* OR sticky3 (bit 1529) to counter3 bit 32 */
> 		tmp64 |= (userbuf[23] << 25) & 0x0000000080000000;
> @@ -616,7 +616,7 @@ static int perf_stop_counters(uint32_t *raddr)
> 		userbuf[23] = 0;
> 
> 		/* 
> -		 * Write back the zero'ed bytes + the image given
> +		 * Write back the zeroed bytes + the image given
> 		 * the read was destructive.
> 		 */
> 		perf_rdr_write(16, userbuf);
> diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
> index dd5d0cb..15992f4 100644
> --- a/arch/parisc/kernel/processor.c
> +++ b/arch/parisc/kernel/processor.c
> @@ -63,7 +63,7 @@ extern int update_cr16_clocksource(void);	/* from 
> time.c */
> ** will call register_parisc_driver(&cpu_driver) before calling 
> do_inventory().
> **
> ** The goal of consolidating CPU initialization into one place is
> -** to make sure all CPU's get initialized the same way.
> +** to make sure all CPUs get initialized the same way.
> ** The code path not shared is how PDC hands control of the CPU to the OS.
> ** The initialization of OS data structures is the same (done below).
> */
> @@ -166,7 +166,7 @@ static int __init processor_probe(struct parisc_device 
> *dev)
> #endif
> 
> 	/*
> -	** CONFIG_SMP: init_smp_config() will attempt to get CPU's into
> +	** CONFIG_SMP: init_smp_config() will attempt to get CPUs into
> 	** OS control. RENDEZVOUS is the default state - see mem_set above.
> 	**	p->state = STATE_RENDEZVOUS;
> 	*/
> @@ -334,7 +334,7 @@ int __init init_per_cpu(int cpunum)
> }
> 
> /*
> - * Display cpu info for all cpu's.
> + * Display CPU info for all CPUs.
>  */
> int
> show_cpuinfo (struct seq_file *m, void *v)
> @@ -393,7 +393,7 @@ static struct parisc_driver cpu_driver __read_mostly = {
> };
> 
> /**
> - * processor_init - Processor initalization procedure.
> + * processor_init - Processor initialization procedure.
>  *
>  * Register this driver.
>  */
> diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
> index 9818919..9d2a1d5 100644
> --- a/arch/parisc/kernel/setup.c
> +++ b/arch/parisc/kernel/setup.c
> @@ -162,7 +162,7 @@ void __init setup_arch(char **cmdline_p)
> }
> 
> /*
> - * Display cpu info for all cpu's.
> + * Display CPU info for all CPUs.
>  * for parisc this is in processor.c
>  */
> extern int show_cpuinfo (struct seq_file *m, void *v);
> diff --git a/arch/parisc/kernel/signal32.h b/arch/parisc/kernel/signal32.h
> index e39b38a..c780084 100644
> --- a/arch/parisc/kernel/signal32.h
> +++ b/arch/parisc/kernel/signal32.h
> @@ -113,7 +113,7 @@ int copy_siginfo_from_user32 (siginfo_t *to, 
> compat_siginfo_t __user *from);
> /* In a deft move of uber-hackery, we decide to carry the top half of all
>  * 64-bit registers in a non-portable, non-ABI, hidden structure.
>  * Userspace can read the hidden structure if it *wants* but is never
> - * guaranteed to be in the same place. Infact the uc_sigmask from the
> + * guaranteed to be in the same place. In fact the uc_sigmask from the
>  * ucontext_t structure may push the hidden register file downards
>  */
> struct compat_regfile {
> diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
> index 6ba9257..4bf7cd1 100644
> --- a/arch/parisc/kernel/smp.c
> +++ b/arch/parisc/kernel/smp.c
> @@ -8,7 +8,7 @@
> ** Lots of stuff stolen from arch/alpha/kernel/smp.c
> ** ...and then parisc stole from arch/ia64/kernel/smp.c. Thanks David! :^)
> **
> -** Thanks to John Curry and Ullas Ponnadi. I learned alot from their work.
> +** Thanks to John Curry and Ullas Ponnadi. I learned a lot from their work.
> ** -grant (1/12/2001)
> **
> **	This program is free software; you can redistribute it and/or modify
> @@ -419,7 +419,7 @@ smp_cpu_init(int cpunum)
> 		BUG();
> 	enter_lazy_tlb(&init_mm, current);
> 
> -	init_IRQ();   /* make sure no IRQ's are enabled or pending */
> +	init_IRQ();   /* make sure no IRQs are enabled or pending */
> 	start_cpu_itimer();
> }
> 
> @@ -552,7 +552,7 @@ void __devinit smp_prepare_boot_cpu(void)
> 
> /*
> ** inventory.c:do_inventory() hasn't yet been run and thus we
> -** don't 'discover' the additional CPU's until later.
> +** don't 'discover' the additional CPUs until later.
> */
> void __init smp_prepare_cpus(unsigned int max_cpus)
> {
> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
> index 07a991a..8b3062a 100644
> --- a/arch/parisc/kernel/time.c
> +++ b/arch/parisc/kernel/time.c
> @@ -191,7 +191,7 @@ int update_cr16_clocksource(void)
> {
> 	int change = 0;
> 
> -	/* since the cr16 cycle counters are not syncronized across CPUs,
> +	/* since the cr16 cycle counters are not synchronized across CPUs,
> 	   we'll check if we should switch to a safe clocksource: */
> 	if (clocksource_cr16.rating != 0 && num_online_cpus() > 1) {
> 		clocksource_change_rating(&clocksource_cr16, 0);
> diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
> index 745ff74..6c05545 100644
> --- a/arch/parisc/kernel/traps.c
> +++ b/arch/parisc/kernel/traps.c
> @@ -615,7 +615,7 @@ void handle_interruption(int code, struct pt_regs *regs)
> 		
> 	case 13:
> 		/* Conditional Trap
> -		   The condition succees in an instruction which traps 
> +		   The condition succeeds in an instruction which traps 
> 		   on condition  */
> 		if(user_mode(regs)){
> 			si.si_signo = SIGFPE;
> diff --git a/arch/parisc/math-emu/dbl_float.h 
> b/arch/parisc/math-emu/dbl_float.h
> index 1570e2e..0c2fa9a 100644
> --- a/arch/parisc/math-emu/dbl_float.h
> +++ b/arch/parisc/math-emu/dbl_float.h
> @@ -22,7 +22,7 @@
>     PA header file -- do not include this header file for non-PA builds.
> #endif
> 
> -/* 32-bit word grabing functions */
> +/* 32-bit word grabbing functions */
> #define Dbl_firstword(value) Dallp1(value)
> #define Dbl_secondword(value) Dallp2(value)
> #define Dbl_thirdword(value) dummy_location
> @@ -37,7 +37,7 @@
> #define Dbl_allp1(object) Dallp1(object)
> #define Dbl_allp2(object) Dallp2(object)
> 
> -/* dbl_and_signs ands the sign bits of each argument and puts the result
> +/* dbl_and_signs ANDs the sign bits of each argument and puts the result
>  * into the first argument. dbl_or_signs ors those same sign bits */
> #define Dbl_and_signs( src1dst, src2)		\
>     Dallp1(src1dst) = (Dallp1(src2)|~((unsigned int)1<<31)) & 
>     Dallp1(src1dst)
> diff --git a/arch/parisc/math-emu/dfsqrt.c b/arch/parisc/math-emu/dfsqrt.c
> index b6ed106..9542c6d 100644
> --- a/arch/parisc/math-emu/dfsqrt.c
> +++ b/arch/parisc/math-emu/dfsqrt.c
> @@ -76,7 +76,7 @@ dbl_fsqrt(
>                 }
>                 /*
>                  * Return quiet NaN or positive infinity.
> -		 *  Fall thru to negative test if negative infinity.
> +		 *  Fall through to negative test if negative infinity.
>                  */
> 		if (Dbl_iszero_sign(srcp1) || 
> 		    Dbl_isnotzero_mantissa(srcp1,srcp2)) {
> diff --git a/arch/parisc/math-emu/sfsqrt.c b/arch/parisc/math-emu/sfsqrt.c
> index cd3f6db..4657a12 100644
> --- a/arch/parisc/math-emu/sfsqrt.c
> +++ b/arch/parisc/math-emu/sfsqrt.c
> @@ -76,7 +76,7 @@ sgl_fsqrt(
>                 }
>                 /*
>                  * Return quiet NaN or positive infinity.
> -		 *  Fall thru to negative test if negative infinity.
> +		 *  Fall through to negative test if negative infinity.
>                  */
> 		if (Sgl_iszero_sign(src) || Sgl_isnotzero_mantissa(src)) {
>                 	*dstptr = src;
> diff --git a/arch/parisc/math-emu/sgl_float.h 
> b/arch/parisc/math-emu/sgl_float.h
> index 82519a5..4ee4cc9 100644
> --- a/arch/parisc/math-emu/sgl_float.h
> +++ b/arch/parisc/math-emu/sgl_float.h
> @@ -23,7 +23,7 @@
>     PA header file -- do not include this header file for non-PA builds.
> #endif
> 
> -/* 32-bit word grabing functions */
> +/* 32-bit word grabbing functions */
> #define Sgl_firstword(value) Sall(value)
> #define Sgl_secondword(value) dummy_location
> #define Sgl_thirdword(value) dummy_location
> @@ -36,7 +36,7 @@
> #define Sgl_exponentmantissa(object) Sexponentmantissa(object)
> #define Sgl_all(object) Sall(object)
> 
> -/* sgl_and_signs ands the sign bits of each argument and puts the result
> +/* sgl_and_signs ANDs the sign bits of each argument and puts the result
>  * into the first argument. sgl_or_signs ors those same sign bits */
> #define Sgl_and_signs( src1dst, src2)		\
>     Sall(src1dst) = (Sall(src2)|~((unsigned int)1<<31)) & Sall(src1dst)
> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> index 75ea9f2..e724b36 100644
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -890,7 +890,7 @@ void __init paging_init(void)
> #ifdef CONFIG_PA20
> 
> /*
> - * Currently, all PA20 chips have 18 bit protection id's, which is the
> + * Currently, all PA20 chips have 18 bit protection IDs, which is the
>  * limiting factor (space ids are 32 bits).
>  */
> 
> @@ -899,10 +899,10 @@ void __init paging_init(void)
> #else
> 
> /*
> - * Currently we have a one-to-one relationship between space id's and
> - * protection id's. Older parisc chips (PCXS, PCXT, PCXL, PCXL2) only
> - * support 15 bit protection id's, so that is the limiting factor.
> - * PCXT' has 18 bit protection id's, but only 16 bit spaceids, so it's
> + * Currently we have a one-to-one relationship between space IDs and
> + * protection IDs. Older parisc chips (PCXS, PCXT, PCXL, PCXL2) only
> + * support 15 bit protection IDs, so that is the limiting factor.
> + * PCXT' has 18 bit protection IDs, but only 16 bit spaceids, so it's
>  * probably not worth the effort for a special case here.
>  */
> 
> -- 
> 1.5.0.1
> 
> -- 
> Simon Arlott
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
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Subject: [parisc-linux] [PATCH] parisc: Enable arbitary speed tty ioctl
	interfaces
Date: Wed, 23 May 2007 17:51:02 +0100
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Xref: news.gmane.org gmane.linux.ports.parisc:25434

All the code is already present in the tree and used by some other
platforms (eg x86_64). Adding the constants and defines activates it for
parisc.

Signed-off-by: Alan Cox <alan@redhat.com>

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.22-rc1-mm1/include/asm-parisc/ioctls.h linux-2.6.22-rc1-mm1/include/asm-parisc/ioctls.h
--- linux.vanilla-2.6.22-rc1-mm1/include/asm-parisc/ioctls.h	2007-04-30 10:48:18.000000000 +0100
+++ linux-2.6.22-rc1-mm1/include/asm-parisc/ioctls.h	2007-05-23 16:38:15.454648304 +0100
@@ -46,6 +46,10 @@
 #define TIOCSBRK	0x5427  /* BSD compatibility */
 #define TIOCCBRK	0x5428  /* BSD compatibility */
 #define TIOCGSID	_IOR('T', 20, int) /* Return the session ID of FD */
+#define TCGETS2		_IOR('T',0x2A, struct termios2)
+#define TCSETS2		_IOW('T',0x2B, struct termios2)
+#define TCSETSW2	_IOW('T',0x2C, struct termios2)
+#define TCSETSF2	_IOW('T',0x2D, struct termios2)
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
 
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.22-rc1-mm1/include/asm-parisc/termbits.h linux-2.6.22-rc1-mm1/include/asm-parisc/termbits.h
--- linux.vanilla-2.6.22-rc1-mm1/include/asm-parisc/termbits.h	2007-04-30 10:48:18.000000000 +0100
+++ linux-2.6.22-rc1-mm1/include/asm-parisc/termbits.h	2007-05-23 16:37:48.499746072 +0100
@@ -130,6 +130,7 @@
 #define HUPCL   0002000
 #define CLOCAL  0004000
 #define CBAUDEX 0010000
+#define    BOTHER 0010000
 #define    B57600 0010001
 #define   B115200 0010002
 #define   B230400 0010003
@@ -145,10 +146,12 @@
 #define  B3000000 0010015
 #define  B3500000 0010016
 #define  B4000000 0010017
-#define CIBAUD    002003600000  /* input baud rate (not used) */
+#define CIBAUD    002003600000		/* input baud rate */
 #define CMSPAR    010000000000          /* mark or space (stick) parity */
 #define CRTSCTS   020000000000          /* flow control */
 
+#define IBSHIFT	16		/* Shift from CBAUD to CIBAUD */
+
 
 /* c_lflag bits */
 #define ISIG    0000001
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.22-rc1-mm1/include/asm-parisc/termios.h linux-2.6.22-rc1-mm1/include/asm-parisc/termios.h
--- linux.vanilla-2.6.22-rc1-mm1/include/asm-parisc/termios.h	2007-04-30 11:00:07.000000000 +0100
+++ linux-2.6.22-rc1-mm1/include/asm-parisc/termios.h	2007-05-23 16:37:55.371701376 +0100
@@ -80,8 +80,10 @@
 	copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
 })
 
-#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
-#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
+#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
+#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
+#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
+#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
 
 #endif	/* __KERNEL__ */
 
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Subject: Re: [parisc-linux] [PATCH] parisc: Enable arbitary speed tty ioctl
	interfaces
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On Wed, May 23, 2007 at 05:51:02PM +0100, Alan Cox wrote:
> All the code is already present in the tree and used by some other
> platforms (eg x86_64). Adding the constants and defines activates it for
> parisc.
> 
> Signed-off-by: Alan Cox <alan@redhat.com>
> 

Groovy, thanks Alan. Merged.
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this cvs tree is long defunct, rm co instructions.
text changes revised by Grant Grundler.

Signed-off-by: maximilian attems <max@stro.at>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

---

 drivers/parisc/ccio-dma.c    |    5 +----
 drivers/parisc/ccio-rm-dma.c |    4 ----
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index b3c4dbf..41756b5 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -17,10 +17,7 @@
 **  U2/Uturn were designed to perform coherency checks w/o using
 **  the I/O MMU - basically what x86 does.
 **
-**  Philipp Rumpf has a "Real Mode" driver for PCX-W machines at:
-**      CVSROOT=:pserver:anonymous@198.186.203.37:/cvsroot/linux-parisc
-**      cvs -z3 co linux/arch/parisc/kernel/dma-rm.c
-**
+**  Philipp Rumpf wrote a "Real Mode" driver for PCX-W machines.
 **  I've rewritten his code to work under TPG's tree. See ccio-rm-dma.c.
 **
 **  Drawbacks of using Real Mode are:
diff --git a/drivers/parisc/ccio-rm-dma.c b/drivers/parisc/ccio-rm-dma.c
index 356b835..b5d5bae 100644
--- a/drivers/parisc/ccio-rm-dma.c
+++ b/drivers/parisc/ccio-rm-dma.c
@@ -21,10 +21,6 @@
  * (at your option) any later version.
  *
  *
- * Original version/author:
- *      CVSROOT=:pserver:anonymous@198.186.203.37:/cvsroot/linux-parisc
- *      cvs -z3 co linux/arch/parisc/kernel/dma-rm.c
- *
  *	(C) Copyright 2000 Philipp Rumpf <prumpf@tux.org>
  *
  *

-- 
maks
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When using an objdir that's different from the srcdir, the initial step
of creating the palo.conf goes awry.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 760567a..c09be26 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -84,10 +84,10 @@ palo: vmlinux
 		false; \
 	fi
 	@if [ ! -f ./palo.conf ]; then \
-		cp arch/parisc/defpalo.conf palo.conf; \
-		echo 'A generic palo config file (./palo.conf) has been created for you.'; \
+		cp $(srctree)/arch/parisc/defpalo.conf ./palo.conf; \
+		echo 'A generic palo config file ($(objtree)/palo.conf) has been created for you.'; \
 		echo 'You should check it and re-run "make palo".'; \
-		echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
+		echo WARNING: the lifimage file is placed in $(objtree) by default\!; \
 		false; \
 	fi
 	$(PALO) -f ./palo.conf

-- 
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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Xref: news.gmane.org gmane.linux.ports.parisc:25438


I found a DAT today with the following contents on it.  Looks like it
may have been a snapshot of the p-l ftp archive, possibly taken for
transport to a show or something.  Anyone want to preserve these for
historical purposes, or can I just write over this tape?

$ tar -vtf /dev/tape
drwxr-xr-x mrw/unknown50     0 1999-06-20 09:44 parisc/
-rw-rw-r-- mrw/genedata    278 1999-06-20 09:43 parisc/README
drwxrwxr-x mrw/genedata      0 1999-06-20 09:44 parisc/binaries/
-rw-rw-r-- mrw/genedata     93 1999-04-17 10:07 parisc/binaries/README
drwxrwxr-x mrw/genedata      0 1999-04-30 21:06 parisc/binaries/RPMS/
-rw-r--r-- mrw/genedata 1927561 1999-04-30 19:56 parisc/binaries/RPMS/binutils-x-parisc-linux-2.9.1-11.i386.rpm
-rw-r--r-- mrw/genedata 1710620 1999-04-30 14:10 parisc/binaries/RPMS/egcs-x-parisc-linux-1.1.1-9.i386.rpm
drwxr-xr-x mrw/genedata       0 1999-04-30 20:02 parisc/binaries/RPMS/old/
-rw-rw-r-- mrw/genedata 1257369 1999-04-17 09:39 parisc/binaries/RPMS/old/binutils-x-hppa-2.9.1-5.i386.rpm
-rw-r--r-- mrw/genedata 1927430 1999-04-30 14:10 parisc/binaries/RPMS/old/binutils-x-parisc-linux-2.9.1-10.i386.rpm
-rw-rw-r-- mrw/genedata 2109997 1999-04-16 09:22 parisc/binaries/RPMS/old/binutils-x-parisc-linux-2.9.1-9.i386.rpm
-rw-rw-r-- mrw/genedata 1775415 1999-04-17 09:40 parisc/binaries/RPMS/old/egcs-x-hppa-linux-1.1.1-4.i386.rpm
-rw-rw-r-- mrw/genedata   20059 1999-04-17 09:42 parisc/binaries/RPMS/rbootd-2.0-2.i386.rpm
drwxrwxr-x mrw/genedata       0 1999-04-30 20:02 parisc/binaries/SRPMS/
-rw-r--r-- mrw/genedata 5925605 1999-04-30 19:56 parisc/binaries/SRPMS/binutils-x-parisc-linux-2.9.1-11.src.rpm
-rw-r--r-- mrw/genedata 11747992 1999-04-30 14:12 parisc/binaries/SRPMS/egcs-x-parisc-linux-1.1.1-9.src.rpm
drwxr-xr-x mrw/genedata        0 1999-04-30 20:02 parisc/binaries/SRPMS/old/
-rw-rw-r-- mrw/genedata  5692980 1999-04-17 09:40 parisc/binaries/SRPMS/old/binutils-x-hppa-2.9.1-5.src.rpm
-rw-r--r-- mrw/genedata  5944707 1999-04-30 14:13 parisc/binaries/SRPMS/old/binutils-x-parisc-linux-2.9.1-10.src.rpm
-rw-rw-r-- mrw/genedata  5945349 1999-04-16 09:23 parisc/binaries/SRPMS/old/binutils-x-parisc-linux-2.9.1-9.src.rpm
-rw-rw-r-- mrw/genedata 11639115 1999-04-17 09:42 parisc/binaries/SRPMS/old/egcs-x-hppa-linux-1.1.1-4.src.rpm
-rw-rw-r-- mrw/genedata    30683 1999-04-17 09:42 parisc/binaries/SRPMS/rbootd-2.0-2.src.rpm
drwxrwxr-x mrw/genedata        0 1999-04-16 17:14 parisc/binaries/deb/
-rw-r--r-- mrw/genedata  5925605 1999-04-30 19:56 parisc/binaries/deb/binutils-x-parisc-linux-2.9.1-11.src.rpm
-rw-r--r-- mrw/genedata      610 1999-04-16 17:14 parisc/binaries/deb/binutils-x-parisc-linux_19990320-1.dsc
-rw-r--r-- mrw/genedata  5727291 1999-04-16 17:14 parisc/binaries/deb/binutils-x-parisc-linux_19990320-1.tar.gz
-rw-r--r-- mrw/genedata     1080 1999-04-16 17:14 parisc/binaries/deb/binutils-x-parisc-linux_19990320-1_i386.changes
-rw-r--r-- mrw/genedata  1487836 1999-04-16 17:14 parisc/binaries/deb/binutils-x-parisc-linux_19990320-1_i386.deb
-rw-r--r-- mrw/genedata 11747992 1999-04-30 14:12 parisc/binaries/deb/egcs-x-parisc-linux-1.1.1-9.src.rpm
drwxr-xr-x mrw/genedata        0 1999-04-30 20:02 parisc/binaries/deb/old/
-rw-rw-r-- mrw/genedata  5692980 1999-04-17 09:40 parisc/binaries/deb/old/binutils-x-hppa-2.9.1-5.src.rpm
-rw-r--r-- mrw/genedata  5944707 1999-04-30 14:13 parisc/binaries/deb/old/binutils-x-parisc-linux-2.9.1-10.src.rpm
-rw-rw-r-- mrw/genedata  5945349 1999-04-16 09:23 parisc/binaries/deb/old/binutils-x-parisc-linux-2.9.1-9.src.rpm
-rw-rw-r-- mrw/genedata 11639115 1999-04-17 09:42 parisc/binaries/deb/old/egcs-x-hppa-linux-1.1.1-4.src.rpm
-rw-rw-r-- mrw/genedata    30683 1999-04-17 09:42 parisc/binaries/deb/rbootd-2.0-2.src.rpm
drwxrwxr-x mrw/genedata        0 1999-06-14 15:16 parisc/binaries/depot/
-rw-r--r-- mrw/genedata   479417 1999-06-14 15:16 parisc/binaries/depot/bash-2.03-1.depot.gz
-rw-r--r-- mrw/genedata  1921222 1999-06-14 09:40 parisc/binaries/depot/binutils-2.9.1-1.depot.gz
-rw-r--r-- mrw/genedata   578297 1999-06-14 09:40 parisc/binaries/depot/cvs-1.10.6-1.depot.gz
-rw-r--r-- mrw/genedata   155099 1999-06-14 11:55 parisc/binaries/depot/diffutils-2.7-1.depot.gz
-rw-r--r-- mrw/genedata   969928 1999-06-14 12:32 parisc/binaries/depot/fileutils-4.0-1.depot.gz
-rw-r--r-- mrw/genedata   141034 1999-06-14 09:40 parisc/binaries/depot/flex-2.5.4-1.depot.gz
-rw-r--r-- mrw/genedata  1854100 1999-06-14 09:41 parisc/binaries/depot/gcc-2.8.1-1.depot.gz
-rw-r--r-- mrw/genedata  1694864 1999-06-14 09:41 parisc/binaries/depot/gcc-2.8.1-2.depot.gz
-rw-r--r-- mrw/genedata   113092 1999-06-14 09:41 parisc/binaries/depot/less-3.40-1.depot.gz
-rw-r--r-- mrw/genedata   216854 1999-06-14 09:41 parisc/binaries/depot/make-3.77-1.depot.gz
-rw-r--r-- mrw/genedata    69486 1999-06-14 11:55 parisc/binaries/depot/patch-2.5-1.depot.gz
drwxr-xr-x mrw/genedata        0 1999-06-11 20:59 parisc/binaries/kernels/
-rw-r--r-- mrw/genedata   658917 1999-06-11 08:30 parisc/binaries/kernels/Image-19990611-1
-rw-r--r-- mrw/genedata   650725 1999-06-11 20:59 parisc/binaries/kernels/Image-19990612-1
drwxrwxr-x mrw/genedata        0 1999-04-30 21:06 parisc/binaries/tgz/
-rw-r--r-- mrw/genedata  1923587 1999-04-30 20:58 parisc/binaries/tgz/binutils-x-parisc-linux-2.9.1-11.tar.gz
-rw-rw-r-- mrw/genedata     6424 1999-04-17 09:38 parisc/binaries/tgz/bootstrap_4.bin.gz
-rw-r--r-- mrw/genedata  1706806 1999-04-30 21:06 parisc/binaries/tgz/egcs-x-parisc-linux-1.1.1-9.tar.gz
drwxr-xr-x mrw/genedata        0 1999-04-30 21:06 parisc/binaries/tgz/old/
-rw-rw-r-- mrw/genedata  1252946 1999-04-17 10:00 parisc/binaries/tgz/old/binutils-x-hppa-2.9.1-5.tar.gz
-rw-r--r-- mrw/genedata  1923606 1999-04-30 14:26 parisc/binaries/tgz/old/binutils-x-parisc-linux-2.9.1-10.tar.gz
-rw-rw-r-- mrw/genedata  1774210 1999-04-17 10:01 parisc/binaries/tgz/old/egcs-x-hppa-linux-1.1.1-4.tar.gz
-rw-rw-r-- mrw/genedata    18352 1999-04-17 10:03 parisc/binaries/tgz/rbootd-2.0-2.tar.gz
drwxrwxr-x mrw/genedata        0 1999-06-20 09:43 parisc/src/
-rw-rw-r-- mrw/genedata    20426 1999-06-20 09:43 parisc/src/boot_rel_0.2.tar.gz

-- 
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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Subject: [parisc-linux] [PATCH 11/68] 0 -> NULL, for arch/parisc
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Xref: news.gmane.org gmane.linux.ports.parisc:25439


When comparing a pointer, it's clearer to compare it to NULL than to 0.

Here is an excerpt of the semantic patch: 

@@
expression *E;
@@

  E ==
- 0
+ NULL

@@
expression *E;
@@

  E !=
- 0
+ NULL

Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: matthew@wil.cx
Cc: grundler@parisc-linux.org
Cc: kyle@parisc-linux.org
Cc: parisc-linux@parisc-linux.org
Cc: akpm@linux-foundation.org
---

 smp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 04c7e1d..16fccbe 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -333,7 +333,7 @@ smp_call_function (void (*func) (void *i
 
 	if (retry) {
 		spin_lock (&lock);
-		while (smp_call_function_data != 0)
+		while (smp_call_function_data != NULL)
 			barrier();
 	}
 	else {

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Newsgroups: gmane.linux.ports.parisc
Subject: [parisc-linux] [RFC][PATCH] Coding style fix
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Hi,

Coding style fix

Regards,
Michal

--
LOG
http://www.stardust.webpages.pl/log/

Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>

--- linux-mm-clean/include/asm-parisc/compat_rt_sigframe.h	2007-07-09 01:32:17.000000000 +0200
+++ linux-mm/include/asm-parisc/compat_rt_sigframe.h	2007-08-01 16:51:57.000000000 +0200
@@ -1,6 +1,6 @@
-#include<linux/compat.h>
-#include<linux/compat_siginfo.h>
-#include<asm/compat_ucontext.h>
+#include <linux/compat.h>
+#include <linux/compat_siginfo.h>
+#include <asm/compat_ucontext.h>
 
 #ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H
 #define _ASM_PARISC_COMPAT_RT_SIGFRAME_H
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Subject: [parisc-linux] [patch 15/23] Add cmpxchg_local to parisc
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Use the new generic cmpxchg_local (disables interrupt). Also use the generic
cmpxchg as fallback if SMP is not set.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: clameter@sgi.com
CC: parisc-linux@parisc-linux.org
---
 include/asm-parisc/atomic.h |   29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

Index: linux-2.6-lttng/include/asm-parisc/atomic.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-parisc/atomic.h	2007-07-20 19:44:40.000000000 -0400
+++ linux-2.6-lttng/include/asm-parisc/atomic.h	2007-07-20 19:44:47.000000000 -0400
@@ -122,6 +122,35 @@ __cmpxchg(volatile void *ptr, unsigned l
 				    (unsigned long)_n_, sizeof(*(ptr))); \
   })
 
+#include <asm-generic/cmpxchg-local.h>
+
+static inline unsigned long __cmpxchg_local(volatile void *ptr,
+				      unsigned long old,
+				      unsigned long new_, int size)
+{
+	switch (size) {
+#ifdef CONFIG_64BIT
+	case 8:	return __cmpxchg_u64((unsigned long *)ptr, old, new_);
+#endif
+	case 4:	return __cmpxchg_u32(ptr, old, new_);
+	default:
+		return __cmpxchg_local_generic(ptr, old, new_, size);
+	}
+}
+
+/*
+ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
+ * them available.
+ */
+#define cmpxchg_local(ptr,o,n)					  	\
+     (__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o),	\
+			   	 (unsigned long)(n), sizeof(*(ptr)))
+#ifdef CONFIG_64BIT
+#define cmpxchg64_local(ptr,o,n) cmpxchg_local((ptr), (o), (n))
+#else
+#define cmpxchg64_local(ptr,o,n) __cmpxchg64_local_generic((ptr), (o), (n))
+#endif
+
 /* Note that we need not lock read accesses - aligned word writes/reads
  * are atomic, so a reader never sees unconsistent values.
  *

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
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Hello lists,


I am currently working on a FUSE-based filesystem much like nfs/sshfs. 
I pass the syscall on to the storage server, where it is executed, and 
get back the result, or errno code. Let's jump into the real world 
example where the storage unit is x86_64 and the mount side is 
sparc/sparc64, and the syscall is getxattr.

If a file does not have the requested attribute, the syscall will 
produce ENODATA. On x86_64, that is mapped to the value 61. Back on the 
sparc side, 61 is mapped to ECONNREFUSED, and that gives odd errors 
when ls tries to query xattrs:

18:20 sun:../ccgfs/src # ls -dl /home/profile
ls: /home/profile: Connection refused
drwx------ 13 cf users 4096 Aug 24 16:05 /home/profile

Just a grep away, this came up:

18:16 ichi:../linux-2.6.23/include > grep -r ENODATA .
./asm-alpha/errno.h:#define     ENODATA         86      /* No data available */
./asm-generic/errno.h:#define   ENODATA         61      /* No data available */
./asm-mips/errno.h:#define      ENODATA         61      /* No data available */
./asm-parisc/errno.h:#define    ENODATA         51      /* No data available */
./asm-sparc/errno.h:#define     ENODATA         111     /* No data available */
./asm-sparc/solerrno.h:#define  SOL_ENODATA        61    /* No data avail at this time       */
./asm-sparc64/errno.h:#define   ENODATA         111     /* No data available */
./asm-sparc64/solerrno.h:#define        SOL_ENODATA        61    /* No data avail at this time       */

Why do these architectures deviate from asm-generic? In fact,

./asm-alpha/errno.h:#define     ECONNREFUSED    61      /* Connection refused */
./asm-generic/errno.h:#define   ECONNREFUSED    111     /* Connection refused */
./asm-sparc/errno.h:#define     ECONNREFUSED    61      /* Connection refused */
./asm-sparc64/errno.h:#define   ECONNREFUSED    61      /* Connection refused */

the values are exactly swapped (mips is another oddball not portrayed 
here). Since these header files propagate into /usr/include, this 
affects userspace programs too.

So I'm just asking: can I rely on the same errno across Linuxes?
And should the errno values be fixed up?



	Jan
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From: Joe Perches <joe@perches.com>
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Subject: [parisc-linux] [PATCH] Prefix each line of multiline
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Cc: discuss@x86-64.org,
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Xref: news.gmane.org gmane.linux.ports.parisc:25443

Corrected printk calls with multiple output lines which
did not correctly preface each line with KERN_<level>

Fixed uses of some single lines with too many KERN_<level>

Please pull from:
git://repo.or.cz/linux-2.6/trivial-mods.git pr_newlines

Signed-off-by: Joe Perches <joe@perches.com>

 arch/arm/kernel/ecard.c                  |    3 ++-
 arch/blackfin/kernel/dualcore_test.c     |    3 ++-
 arch/blackfin/kernel/traps.c             |    4 +++-
 arch/h8300/kernel/setup.c                |    4 +++-
 arch/i386/kernel/io_apic.c               |    3 ++-
 arch/m68knommu/kernel/setup.c            |    4 +++-
 arch/m68knommu/kernel/traps.c            |    5 +++--
 arch/m68knommu/mm/init.c                 |    9 ++++++---
 arch/m68knommu/platform/68328/config.c   |    3 ++-
 arch/m68knommu/platform/68360/config.c   |    3 ++-
 arch/m68knommu/platform/68EZ328/config.c |    3 ++-
 arch/mips/vr41xx/common/pmu.c            |    9 ++++++---
 arch/parisc/kernel/traps.c               |    3 ++-
 arch/parisc/math-emu/driver.c            |    5 +++--
 arch/v850/kernel/setup.c                 |    6 ++++--
 arch/x86_64/kernel/io_apic.c             |    3 ++-
 arch/x86_64/kernel/mpparse.c             |    3 ++-
 drivers/acpi/acpi_memhotplug.c           |    3 ++-
 drivers/char/dtlk.c                      |    3 ++-
 drivers/char/tpm/tpm_bios.c              |    2 +-
 drivers/ide/ide-cd.c                     |    3 ++-
 drivers/input/serio/hil_mlc.c            |    2 +-
 drivers/message/fusion/mptlan.c          |    3 ++-
 drivers/mtd/maps/cdb89712.c              |    5 ++++-
 drivers/net/cs89x0.c                     |    2 +-
 drivers/net/dgrs.c                       |    3 ++-
 drivers/net/wireless/arlan-main.c        |    2 +-
 drivers/net/wireless/arlan-proc.c        |   19 ++++++++++---------
 drivers/parisc/led.c                     |    3 ++-
 drivers/scsi/aha152x.c                   |   16 +++++++++++-----
 drivers/scsi/dpt_i2o.c                   |    3 ++-
 drivers/scsi/mac_scsi.c                  |    3 ++-
 drivers/scsi/megaraid.c                  |    3 ++-
 drivers/scsi/megaraid/megaraid_sas.c     |   25 ++++++++++++++++---------
 drivers/scsi/osst.c                      |    3 ++-
 drivers/scsi/zalon.c                     |    2 +-
 drivers/video/savage/savagefb_driver.c   |   21 ++++++++++++---------
 fs/dlm/dlm_internal.h                    |    9 +++++----
 fs/freevxfs/vxfs_bmap.c                  |    8 ++++++--
 fs/jffs2/wbuf.c                          |    3 ++-
 mm/slub.c                                |   18 ++++++++++++------
 41 files changed, 152 insertions(+), 85 deletions(-)

diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c
index f56d48c..6402ad2 100644
--- a/arch/arm/kernel/ecard.c
+++ b/arch/arm/kernel/ecard.c
@@ -547,7 +547,8 @@ static void ecard_check_lockup(struct irq_desc *desc)
 	if (last == jiffies) {
 		lockup += 1;
 		if (lockup > 1000000) {
-			printk(KERN_ERR "\nInterrupt lockup detected - "
+			printk(KERN_ERR "\n"
+			       KERN_ERR "Interrupt lockup detected - "
 			       "disabling all expansion card interrupts\n");
 
 			desc->chip->mask(IRQ_EXPANSIONCARD);
diff --git a/arch/blackfin/kernel/dualcore_test.c b/arch/blackfin/kernel/dualcore_test.c
index 0fcba74..3c94199 100644
--- a/arch/blackfin/kernel/dualcore_test.c
+++ b/arch/blackfin/kernel/dualcore_test.c
@@ -35,7 +35,8 @@ static int *testarg = (int *)0xfeb00000;
 static int test_init(void)
 {
 	*testarg = 1;
-	printk(KERN_INFO "Dual core test module inserted: set testarg = [%d]\n @ [%p]\n",
+	printk(KERN_INFO "Dual core test module inserted: set testarg = [%d]\n"
+	       KERN_INFO "@ [%p]\n",
 	       *testarg, testarg);
 	return 0;
 }
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 792a841..9255012 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -351,7 +351,9 @@ asmlinkage void trap_c(struct pt_regs *fp)
 		info.si_code = ILL_CPLB_MULHIT;
 #ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
 		sig = SIGSEGV;
-		printk(KERN_EMERG "\n\nJump to address 0 - 0x0fff\n");
+		printk(KERN_EMERG "\n"
+		       KERN_EMERG "\n"
+		       KERN_EMERG "Jump to address 0 - 0x0fff\n");
 #else
 		sig = SIGILL;
 		printk(KERN_EMERG EXC_0x2D);
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
index b2e86d0..cb45404 100644
--- a/arch/h8300/kernel/setup.c
+++ b/arch/h8300/kernel/setup.c
@@ -127,7 +127,9 @@ void __init setup_arch(char **cmdline_p)
 	register_console((struct console *)&gdb_console);
 #endif
 
-	printk(KERN_INFO "\r\n\nuClinux " CPU "\n");
+	printk(KERN_INFO "\r\n"
+	       KERN_INFO "\n"
+	       KERN_INFO "uClinux " CPU "\n");
 	printk(KERN_INFO "Target Hardware: %s\n",_target_name);
 	printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
 	printk(KERN_INFO "H8/300 series support by Yoshinori Sato <ysato@users.sourceforge.jp>\n");
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 4b8a8da..856f127 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -1618,7 +1618,8 @@ void /*__init*/ print_PIC(void)
 	if (apic_verbosity == APIC_QUIET)
 		return;
 
-	printk(KERN_DEBUG "\nprinting PIC contents\n");
+	printk(KERN_DEBUG "\n"
+	       KERN_DEBUG "printing PIC contents\n");
 
 	spin_lock_irqsave(&i8259A_lock, flags);
 
diff --git a/arch/m68knommu/kernel/setup.c b/arch/m68knommu/kernel/setup.c
index 3f86ade..7c0dd75 100644
--- a/arch/m68knommu/kernel/setup.c
+++ b/arch/m68knommu/kernel/setup.c
@@ -135,7 +135,9 @@ void setup_arch(char **cmdline_p)
 	command_line[sizeof(command_line) - 1] = 0;
 #endif
 
-	printk(KERN_INFO "\x0F\r\n\nuClinux/" CPU "\n");
+	printk(KERN_INFO "\x0F\r\n"
+	       KERN_INFO "\n"
+	       KERN_INFO "uClinux/" CPU "\n");
 
 #ifdef CONFIG_UCDIMM
 	printk(KERN_INFO "uCdimm by Lineo, Inc. <www.lineo.com>\n");
diff --git a/arch/m68knommu/kernel/traps.c b/arch/m68knommu/kernel/traps.c
index 437a061..a66c348 100644
--- a/arch/m68knommu/kernel/traps.c
+++ b/arch/m68knommu/kernel/traps.c
@@ -71,8 +71,9 @@ void die_if_kernel(char *str, struct pt_regs *fp, int nr)
 
 	console_verbose();
 	printk(KERN_EMERG "%s: %08x\n",str,nr);
-	printk(KERN_EMERG "PC: [<%08lx>]\nSR: %04x  SP: %p  a2: %08lx\n",
-	       fp->pc, fp->sr, fp, fp->a2);
+	printk(KERN_EMERG "PC: [<%08lx>]\n", fp->pc);
+	printk(KERN_EMERG "SR: %04x  SP: %p  a2: %08lx\n",
+	       fp->sr, fp, fp->a2);
 	printk(KERN_EMERG "d0: %08lx    d1: %08lx    d2: %08lx    d3: %08lx\n",
 	       fp->d0, fp->d1, fp->d2, fp->d3);
 	printk(KERN_EMERG "d4: %08lx    d5: %08lx    a0: %08lx    a1: %08lx\n",
diff --git a/arch/m68knommu/mm/init.c b/arch/m68knommu/mm/init.c
index 06e538d..970f1a1 100644
--- a/arch/m68knommu/mm/init.c
+++ b/arch/m68knommu/mm/init.c
@@ -68,7 +68,8 @@ void show_mem(void)
     int free = 0, total = 0, reserved = 0, shared = 0;
     int cached = 0;
 
-    printk(KERN_INFO "\nMem-info:\n");
+    printk(KERN_INFO "\n"
+	   KERN_INFO "Mem-info:\n");
     show_free_areas();
     i = max_mapnr;
     while (i-- > 0) {
@@ -110,7 +111,8 @@ void paging_init(void)
 	unsigned long end_mem   = memory_end & PAGE_MASK;
 
 #ifdef DEBUG
-	printk (KERN_DEBUG "start_mem is %#lx\nvirtual_end is %#lx\n",
+	printk (KERN_DEBUG "start_mem is %#lx\n"
+		KERN_DEBUG "virtual_end is %#lx\n",
 		start_mem, end_mem);
 #endif
 
@@ -131,7 +133,8 @@ void paging_init(void)
 #ifdef DEBUG
 	printk (KERN_DEBUG "before free_area_init\n");
 
-	printk (KERN_DEBUG "free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n",
+	printk (KERN_DEBUG "free_area_init -> start_mem is %#lx\n"
+		KERN_DEBUG "virtual_end is %#lx\n",
 		start_mem, end_mem);
 #endif
 
diff --git a/arch/m68knommu/platform/68328/config.c b/arch/m68knommu/platform/68328/config.c
index e5c537d..07c73c9 100644
--- a/arch/m68knommu/platform/68328/config.c
+++ b/arch/m68knommu/platform/68328/config.c
@@ -55,7 +55,8 @@ void m68328_reset (void)
 
 void config_BSP(char *command, int len)
 {
-  printk(KERN_INFO "\n68328 support D. Jeff Dionne <jeff@uclinux.org>\n");
+  printk(KERN_INFO "\n"
+	 KERN_INFO "68328 support D. Jeff Dionne <jeff@uclinux.org>\n");
   printk(KERN_INFO "68328 support Kenneth Albanowski <kjahds@kjshds.com>\n");
   printk(KERN_INFO "68328/Pilot support Bernhard Kuhn <kuhn@lpr.e-technik.tu-muenchen.de>\n");
 
diff --git a/arch/m68knommu/platform/68360/config.c b/arch/m68knommu/platform/68360/config.c
index 155b72f..2392fc0 100644
--- a/arch/m68knommu/platform/68360/config.c
+++ b/arch/m68knommu/platform/68360/config.c
@@ -183,7 +183,8 @@ void config_BSP(char *command, int len)
      }
   }
 
-  printk(KERN_INFO "\n68360 QUICC support (C) 2000 Lineo Inc.\n");
+  printk(KERN_INFO "\n"
+	 KERN_INFO "68360 QUICC support (C) 2000 Lineo Inc.\n");
 
 #if defined(CONFIG_UCQUICC) && 0
   printk(KERN_INFO "uCquicc serial string [%s]\n",getserialnum());
diff --git a/arch/m68knommu/platform/68EZ328/config.c b/arch/m68knommu/platform/68EZ328/config.c
index ab36551..f344edf 100644
--- a/arch/m68knommu/platform/68EZ328/config.c
+++ b/arch/m68knommu/platform/68EZ328/config.c
@@ -66,7 +66,8 @@ void config_BSP(char *command, int len)
 {
   unsigned char *p;
 
-  printk(KERN_INFO "\n68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n");
+  printk(KERN_INFO "\n"
+	 KERN_INFO "68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n");
 
 #ifdef CONFIG_UCSIMM
   printk(KERN_INFO "uCsimm serial string [%s]\n",getserialnum());
diff --git a/arch/mips/vr41xx/common/pmu.c b/arch/mips/vr41xx/common/pmu.c
index 5e46979..ada7f15 100644
--- a/arch/mips/vr41xx/common/pmu.c
+++ b/arch/mips/vr41xx/common/pmu.c
@@ -65,21 +65,24 @@ static void vr41xx_restart(char *command)
 {
 	local_irq_disable();
 	software_reset();
-	printk(KERN_NOTICE "\nYou can reset your system\n");
+	printk(KERN_NOTICE "\n"
+	       KERN_NOTICE "You can reset your system\n");
 	while (1) ;
 }
 
 static void vr41xx_halt(void)
 {
 	local_irq_disable();
-	printk(KERN_NOTICE "\nYou can turn off the power supply\n");
+	printk(KERN_NOTICE "\n"
+	       KERN_NOTICE "You can turn off the power supply\n");
 	while (1) ;
 }
 
 static void vr41xx_power_off(void)
 {
 	local_irq_disable();
-	printk(KERN_NOTICE "\nYou can turn off the power supply\n");
+	printk(KERN_NOTICE "\n"
+	       KERN_NOTICE "You can turn off the power supply\n");
 	while (1) ;
 }
 
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index bbf029a..6a29d4c 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -746,7 +746,8 @@ void handle_interruption(int code, struct pt_regs *regs)
 	default:
 		if (user_mode(regs)) {
 #ifdef PRINT_USER_FAULTS
-			printk(KERN_DEBUG "\nhandle_interruption() pid=%d command='%s'\n",
+			printk(KERN_DEBUG "\n"
+			       KERN_DEBUG "handle_interruption() pid=%d command='%s'\n",
 			    current->pid, current->comm);
 			show_regs(regs);
 #endif
diff --git a/arch/parisc/math-emu/driver.c b/arch/parisc/math-emu/driver.c
index 09ef413..534ce20 100644
--- a/arch/parisc/math-emu/driver.c
+++ b/arch/parisc/math-emu/driver.c
@@ -98,9 +98,10 @@ handle_fpe(struct pt_regs *regs)
 	memcpy(&orig_sw, frcopy, sizeof(orig_sw));
 
 	if (FPUDEBUG) {
-		printk(KERN_DEBUG "FP VZOUICxxxxCQCQCQCQCQCRMxxTDVZOUI ->\n   ");
+		printk(KERN_DEBUG "FP VZOUICxxxxCQCQCQCQCQCRMxxTDVZOUI ->\n"
+		       KERN_DEBUG "   ");
 		printbinary(orig_sw, 32);
-		printk(KERN_DEBUG "\n");
+		printk("\n");
 	}
 
 	signalcode = decode_fpu(frcopy, 0x666);
diff --git a/arch/v850/kernel/setup.c b/arch/v850/kernel/setup.c
index a914f24..35cf93a 100644
--- a/arch/v850/kernel/setup.c
+++ b/arch/v850/kernel/setup.c
@@ -79,7 +79,8 @@ void __init setup_arch (char **cmdline)
 	/* ... and tell the kernel about it.  */
 	init_mem_alloc (ram_start, ram_len);
 
-	printk (KERN_INFO "CPU: %s\nPlatform: %s\n",
+	printk (KERN_INFO "CPU: %s\n"
+		KERN_INFO "Platform: %s\n",
 		CPU_MODEL_LONG, PLATFORM_LONG);
 
 	/* do machine-specific setups.  */
@@ -304,7 +305,8 @@ void show_mem(void)
     int free = 0, total = 0, reserved = 0, shared = 0;
     int cached = 0;
 
-    printk(KERN_INFO "\nMem-info:\n");
+    printk(KERN_INFO "\n"
+	   KERN_INFO "Mem-info:\n");
     show_free_areas();
     i = max_mapnr;
     while (i-- > 0) {
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index f57f8b9..6b2c8a3 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -1142,7 +1142,8 @@ void __apicdebuginit print_PIC(void)
 	if (apic_verbosity == APIC_QUIET)
 		return;
 
-	printk(KERN_DEBUG "\nprinting PIC contents\n");
+	printk(KERN_DEBUG "\n"
+	       KERN_DEBUG "printing PIC contents\n");
 
 	spin_lock_irqsave(&i8259A_lock, flags);
 
diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c
index 8bf0ca0..d32e640 100644
--- a/arch/x86_64/kernel/mpparse.c
+++ b/arch/x86_64/kernel/mpparse.c
@@ -411,7 +411,8 @@ static inline void __init construct_default_ISA_mptable(int mpc_default_type)
 	bus.mpc_busid = 0;
 	switch (mpc_default_type) {
 		default:
-			printk(KERN_ERR "???\nUnknown standard configuration %d\n",
+			printk(KERN_ERR "\n"
+			       KERN_ERR "???Unknown standard configuration %d\n",
 				mpc_default_type);
 			/* fall through */
 		case 1:
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 5f1127a..61e51ca 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -185,7 +185,8 @@ acpi_memory_get_device(acpi_handle handle,
       end:
 	*mem_device = acpi_driver_data(device);
 	if (!(*mem_device)) {
-		printk(KERN_ERR "\n driver data not found");
+		printk(KERN_ERR "\n"
+		       KERN_ERR "driver data not found");
 		return -ENODEV;
 	}
 
diff --git a/drivers/char/dtlk.c b/drivers/char/dtlk.c
index abde6dd..0bf01c6 100644
--- a/drivers/char/dtlk.c
+++ b/drivers/char/dtlk.c
@@ -495,7 +495,8 @@ for (i = 0; i < 10; i++)			\
 /*
    static void dtlk_handle_error(char op, char rc, unsigned int minor)
    {
-   printk(KERN_INFO"\nDoubleTalk PC - MINOR: %d, OPCODE: %d, ERROR: %d\n", 
+   printk(KERN_INFO "\n"
+          KERN_INFO "DoubleTalk PC - MINOR: %d, OPCODE: %d, ERROR: %d\n", 
    minor, op, rc);
    return;
    }
diff --git a/drivers/char/tpm/tpm_bios.c b/drivers/char/tpm/tpm_bios.c
index 60a2d26..c0b4fa1 100644
--- a/drivers/char/tpm/tpm_bios.c
+++ b/drivers/char/tpm/tpm_bios.c
@@ -321,7 +321,7 @@ static int tpm_ascii_bios_measurements_show(struct seq_file *m, void *v)
 
 	eventname = kmalloc(MAX_TEXT_EVENT, GFP_KERNEL);
 	if (!eventname) {
-		printk(KERN_ERR "%s: ERROR - No Memory for event name\n ",
+		printk(KERN_ERR "%s: ERROR - No Memory for event name\n",
 		       __func__);
 		return -EFAULT;
 	}
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index ca84352..31fcbe8 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -541,7 +541,8 @@ void cdrom_analyze_sense_data(ide_drive_t *drive,
 					lo = mid+1;
 			}
 
-			printk (KERN_ERR "  The failed \"%s\" packet command was: \n  \"", s);
+			printk (KERN_ERR "  The failed \"%s\" packet command was:\n"
+				KERN_ERR "  \"", s);
 			for (i=0; i<sizeof (failed_command->cmd); i++)
 				printk ("%02x ", failed_command->cmd[i]);
 			printk ("\"\n");
diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index 93a1a6b..ef31148 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -625,7 +625,7 @@ static int hilse_donode(hil_mlc *mlc)
 #ifdef HIL_MLC_DEBUG
 	if (mlc->seidx && mlc->seidx != seidx &&
 	    mlc->seidx != 41 && mlc->seidx != 42 && mlc->seidx != 43) {
-		printk(KERN_DEBUG PREFIX "z%i \n {%i}", doze, mlc->seidx);
+		printk(KERN_DEBUG PREFIX "z%i\t{%i}\n", doze, mlc->seidx);
 		doze = 0;
 	}
 
diff --git a/drivers/message/fusion/mptlan.c b/drivers/message/fusion/mptlan.c
index 01fc397..59df21e 100644
--- a/drivers/message/fusion/mptlan.c
+++ b/drivers/message/fusion/mptlan.c
@@ -1318,7 +1318,8 @@ mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv)
 
 		pRecvReq->BucketCount = cpu_to_le32(i);
 
-/*	printk(KERN_INFO MYNAM ": posting buckets\n   ");
+/*	printk(KERN_INFO MYNAM ": posting buckets\n");
+ *	printk(KERN_INFO "   ");
  *	for (i = 0; i < j + 2; i ++)
  *	    printk (" %08x", le32_to_cpu(msg[i]));
  *	printk ("\n");
diff --git a/drivers/mtd/maps/cdb89712.c b/drivers/mtd/maps/cdb89712.c
index 9f17bb6..2a15cc9 100644
--- a/drivers/mtd/maps/cdb89712.c
+++ b/drivers/mtd/maps/cdb89712.c
@@ -225,7 +225,10 @@ out:
 static int __init init_cdb89712_maps(void)
 {
 
-       	printk(KERN_INFO "Cirrus CDB89712 MTD mappings:\n  Flash 0x%x at 0x%x\n  SRAM 0x%x at 0x%x\n  BootROM 0x%x at 0x%x\n",
+	printk(KERN_INFO "Cirrus CDB89712 MTD mappings:\n"
+	       KERN_INFO "  Flash 0x%x at 0x%x\n"
+	       KERN_INFO "  SRAM 0x%x at 0x%x\n"
+	       KERN_INFO "  BootROM 0x%x at 0x%x\n",
 	       FLASH_SIZE, FLASH_START, SRAM_SIZE, SRAM_START, BOOTROM_SIZE, BOOTROM_START);
 
 	init_cdb89712_flash();
diff --git a/drivers/net/cs89x0.c b/drivers/net/cs89x0.c
index 9774bb1..536d29f 100644
--- a/drivers/net/cs89x0.c
+++ b/drivers/net/cs89x0.c
@@ -731,7 +731,7 @@ cs89x0_probe1(struct net_device *dev, int ioaddr, int modular)
 	if ((readreg(dev, PP_SelfST) & EEPROM_PRESENT) == 0)
 		printk(KERN_WARNING "cs89x0: No EEPROM, relying on command line....\n");
 	else if (get_eeprom_data(dev, START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) {
-		printk(KERN_WARNING "\ncs89x0: EEPROM read failed, relying on command line.\n");
+		printk(KERN_WARNING "cs89x0: EEPROM read failed, relying on command line.\n");
         } else if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) {
 		/* Check if the chip was able to read its own configuration starting
 		   at 0 in the EEPROM*/
diff --git a/drivers/net/dgrs.c b/drivers/net/dgrs.c
index df62c02..28c7bc9 100644
--- a/drivers/net/dgrs.c
+++ b/drivers/net/dgrs.c
@@ -1583,7 +1583,8 @@ static int __init dgrs_init_module (void)
 
 	if (dgrs_debug)
 	{
-		printk(KERN_INFO "dgrs: SW=%s FW=Build %d %s\nFW Version=%s\n",
+		printk(KERN_INFO "dgrs: SW=%s FW=Build %d %s\n"
+		       KERN_INFO "FW Version=%s\n",
 		       version, dgrs_firmnum, dgrs_firmdate, dgrs_firmver);
 	}
 
diff --git a/drivers/net/wireless/arlan-main.c b/drivers/net/wireless/arlan-main.c
index 498e848..00edf9a 100644
--- a/drivers/net/wireless/arlan-main.c
+++ b/drivers/net/wireless/arlan-main.c
@@ -1082,7 +1082,7 @@ static int __init arlan_probe_here(struct net_device *dev,
 	if (arlan_check_fingerprint(memaddr))
 		return -ENODEV;
 
-	printk(KERN_NOTICE "%s: Arlan found at %x, \n ", dev->name, 
+	printk(KERN_NOTICE "%s: Arlan found at %x, \n", dev->name, 
 	       (int) virt_to_phys((void*)memaddr));
 
 	ap->card = (void *) memaddr;
diff --git a/drivers/net/wireless/arlan-proc.c b/drivers/net/wireless/arlan-proc.c
index 015abd9..6effdf6 100644
--- a/drivers/net/wireless/arlan-proc.c
+++ b/drivers/net/wireless/arlan-proc.c
@@ -418,13 +418,14 @@ static int arlan_sysctl_info(ctl_table * ctl, int write, struct file *filp,
 	}
 	if (ctl->procname == NULL || arlan_drive_info == NULL)
 	{
-		printk(KERN_WARNING " procname is NULL in sysctl_table or arlan_drive_info is NULL \n at arlan module\n ");
+		printk(KERN_WARNING " procname is NULL in sysctl_table or arlan_drive_info is NULL\n"
+		       KERN_WARNING " at arlan module\n");
 		return -1;
 	}
 	devnum = ctl->procname[5] - '0';
 	if (devnum < 0 || devnum > MAX_ARLANS - 1)
 	{
-		printk(KERN_WARNING "too strange devnum in procfs parse\n ");
+		printk(KERN_WARNING "too strange devnum in procfs parse\n");
 		return -1;
 	}
 	else if (arlan_device[devnum] == NULL)
@@ -439,7 +440,7 @@ static int arlan_sysctl_info(ctl_table * ctl, int write, struct file *filp,
 
 	if (priva == NULL)
 	{
-		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+		printk(KERN_WARNING "Could not find the device private in arlan procsys, bad\n");
 		return -1;
 	}
 	dev = arlan_device[devnum];
@@ -657,7 +658,7 @@ static int arlan_sysctl_info161719(ctl_table * ctl, int write, struct file *filp
 		priva = arlan_device[devnum]->priv;
 	if (priva == NULL)
 	{
-		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+		printk(KERN_WARNING "Could not find the device private in arlan procsys, bad\n");
 		return -1;
 	}
 	memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
@@ -691,7 +692,7 @@ static int arlan_sysctl_infotxRing(ctl_table * ctl, int write, struct file *filp
 		priva = arlan_device[devnum]->priv;
 	if (priva == NULL)
 	{
-		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+		printk(KERN_WARNING "Could not find the device private in arlan procsys, bad\n");
 		return -1;
 	}
 	memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
@@ -719,7 +720,7 @@ static int arlan_sysctl_inforxRing(ctl_table * ctl, int write, struct file *filp
 		priva = arlan_device[devnum]->priv;
 	if (priva == NULL)
 	{
-		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+		printk(KERN_WARNING "Could not find the device private in arlan procsys, bad\n");
 		return -1;
 	}
 	memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
@@ -748,7 +749,7 @@ static int arlan_sysctl_info18(ctl_table * ctl, int write, struct file *filp,
 		priva = arlan_device[devnum]->priv;
 	if (priva == NULL)
 	{
-		printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+		printk(KERN_WARNING "Could not find the device private in arlan procsys, bad\n");
 		return -1;
 	}
 	memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
@@ -775,7 +776,7 @@ static int arlan_configure(ctl_table * ctl, int write, struct file *filp,
 
 	if (devnum < 0 || devnum > MAX_ARLANS - 1)
 	{
-		  printk(KERN_WARNING "too strange devnum in procfs parse\n ");
+		  printk(KERN_WARNING "too strange devnum in procfs parse\n");
 		  return -1;
 	}
 	else if (arlan_device[devnum] != NULL)
@@ -800,7 +801,7 @@ static int arlan_sysctl_reset(ctl_table * ctl, int write, struct file *filp,
 
 	if (devnum < 0 || devnum > MAX_ARLANS - 1)
 	{
-		  printk(KERN_WARNING "too strange devnum in procfs parse\n ");
+		  printk(KERN_WARNING "too strange devnum in procfs parse\n");
 		  return -1;
 	}
 	else if (arlan_device[devnum] != NULL)
diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index e5d7ed9..9053933 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -230,7 +230,8 @@ static int led_proc_write(struct file *file, const char *buf,
 
 parse_error:
 	if ((long)data == LED_NOLCD)
-		printk(KERN_CRIT "Parse error: expect \"n n n\" (n == 0 or 1) for heartbeat,\ndisk io and lan tx/rx indicators\n");
+		printk(KERN_CRIT "Parse error: expect \"n n n\" (n == 0 or 1) for heartbeat,\n"
+		       KERN_CRIT "disk io and lan tx/rx indicators\n");
 	return -EINVAL;
 }
 
diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index d30a307..0a96ff4 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -2647,7 +2647,8 @@ static void is_complete(struct Scsi_Host *shpnt)
  */
 static void aha152x_error(struct Scsi_Host *shpnt, char *msg)
 {
-	printk(KERN_EMERG "\naha152x%d: %s\n", HOSTNO, msg);
+	printk(KERN_EMERG "\n"
+	       KERN_EMERG "aha152x%d: %s\n", HOSTNO, msg);
 	show_queues(shpnt);
 	panic("aha152x panic\n");
 }
@@ -2973,7 +2974,9 @@ static void show_queues(struct Scsi_Host *shpnt)
 	unsigned long flags;
 
 	DO_LOCK(flags);
-	printk(KERN_DEBUG "\nqueue status:\nissue_SC:\n");
+	printk(KERN_DEBUG "\n"
+	       KERN_DEBUG "queue status:\n"
+	       KERN_DEBUG "issue_SC:\n");
 	for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
 		show_command(ptr);
 	DO_UNLOCK(flags);
@@ -3663,7 +3666,8 @@ static int __init aha152x_init(void)
 
 		for (i = 0; i<setup_count; i++) {
 			if (!checksetup(&setup[i])) {
-				printk(KERN_ERR "\naha152x: %s\n", setup[i].conf);
+				printk(KERN_ERR "\n"
+				       KERN_ERR "aha152x: %s\n", setup[i].conf);
 				printk(KERN_ERR "aha152x: invalid line\n");
 			}
 		}
@@ -3676,7 +3680,8 @@ static int __init aha152x_init(void)
 
 		if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
 			if (!checksetup(&override)) {
-				printk(KERN_ERR "\naha152x: invalid override SETUP0={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
+				printk(KERN_ERR "\n"
+				       KERN_ERR "aha152x: invalid override SETUP0={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
 				       override.io_port,
 				       override.irq,
 				       override.scsiid,
@@ -3697,7 +3702,8 @@ static int __init aha152x_init(void)
 
 		if (setup_count == 0 || (override.io_port != setup[0].io_port)) {
 			if (!checksetup(&override)) {
-				printk(KERN_ERR "\naha152x: invalid override SETUP1={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
+				printk(KERN_ERR "\n"
+				       KERN_ERR "aha152x: invalid override SETUP1={0x%x,%d,%d,%d,%d,%d,%d,%d}\n",
 				       override.io_port,
 				       override.irq,
 				       override.scsiid,
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 502732a..b40efe0 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -3148,7 +3148,8 @@ static int adpt_i2o_issue_params(int cmd, adpt_hba* pHba, int tid,
 	}
 
 	if (res[1]&0x00FF0000) { 	/* BlockStatus != SUCCESS */
-		printk(KERN_WARNING "%s: %s - Error:\n  ErrorInfoSize = 0x%02x, "
+		printk(KERN_WARNING "%s: %s - Error:\n"
+		       KERN_WARNING "  ErrorInfoSize = 0x%02x, "
 			"BlockStatus = 0x%02x, BlockSize = 0x%04x\n",
 			pHba->name,
 			(cmd == I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET"
diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c
index cdbcaa5..1afcb6c 100644
--- a/drivers/scsi/mac_scsi.c
+++ b/drivers/scsi/mac_scsi.c
@@ -311,7 +311,8 @@ int macscsi_detect(struct scsi_host_template * tpnt)
 	printk (KERN_INFO " %d", instance->irq);
     printk(KERN_INFO " options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
 	   instance->can_queue, instance->cmd_per_lun, MACSCSI_PUBLIC_RELEASE);
-    printk(KERN_INFO "\nscsi%d:", instance->host_no);
+    printk(KERN_INFO "\n"
+	   KERN_INFO "scsi%d:", instance->host_no);
     NCR5380_print_options(instance);
     printk("\n");
     called = 1;
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 3907f67..a3083a6 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -2077,7 +2077,8 @@ mega_create_proc_entry(int index, struct proc_dir_entry *parent)
 		adapter->controller_proc_dir_entry = proc_mkdir(string, parent);
 
 	if(!controller_proc_dir_entry) {
-		printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n");
+		printk(KERN_WARNING "\n"
+		       KERN_WARNING "megaraid: proc_mkdir failed\n");
 		return;
 	}
 	adapter->proc_read = CREATE_READ_PROC("config", proc_read_config);
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index ebb948c..fe05e86 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -744,12 +744,14 @@ megasas_dump_pending_frames(struct megasas_instance *instance)
 	u32 sgcount;
 	u32 max_cmd = instance->max_fw_cmds;
 
-	printk(KERN_ERR "\nmegasas[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);
+	printk(KERN_ERR "\n"
+	       KERN_ERR "megasas[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);
 	printk(KERN_ERR "megasas[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding));
+	printk(KERN_ERR "\n");
 	if (IS_DMA64)
-		printk(KERN_ERR "\nmegasas[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);
+		printk(KERN_ERR "megasas[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);
 	else
-		printk(KERN_ERR "\nmegasas[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);
+		printk(KERN_ERR "megasas[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);
 
 	printk(KERN_ERR "megasas[%d]: Pending OS cmds in FW : \n",instance->host->host_no);
 	for (i = 0; i < max_cmd; i++) {
@@ -770,25 +772,30 @@ megasas_dump_pending_frames(struct megasas_instance *instance)
 			printk(KERN_ERR "megasas[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",instance->host->host_no,cmd->frame_count,pthru->cmd,pthru->target_id,pthru->lun,pthru->cdb_len , pthru->data_xfer_len,pthru->sense_buf_phys_addr_lo,sgcount);
 		}
 	if(megasas_dbg_lvl & MEGASAS_DBG_LVL){
+		printk(KERN_ERR "megasas:");
 		for (n = 0; n < sgcount; n++){
 			if (IS_DMA64)
-				printk(KERN_ERR "megasas: sgl len : 0x%x, sgl addr : 0x%08lx ",mfi_sgl->sge64[n].length , (unsigned long)mfi_sgl->sge64[n].phys_addr) ;
+				printk(" sgl len : 0x%x, sgl addr : 0x%08lx",mfi_sgl->sge64[n].length , (unsigned long)mfi_sgl->sge64[n].phys_addr) ;
 			else
-				printk(KERN_ERR "megasas: sgl len : 0x%x, sgl addr : 0x%x ",mfi_sgl->sge32[n].length , mfi_sgl->sge32[n].phys_addr) ;
+				printk(" sgl len : 0x%x, sgl addr : 0x%x",mfi_sgl->sge32[n].length , mfi_sgl->sge32[n].phys_addr) ;
 			}
 		}
-		printk(KERN_ERR "\n");
+		printk("\n");
 	} /*for max_cmd*/
-	printk(KERN_ERR "\nmegasas[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);
+	printk(KERN_ERR "\n"
+	       KERN_ERR "megasas[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);
+	printk(KERN_ERR);
 	for (i = 0; i < max_cmd; i++) {
 
 		cmd = instance->cmd_list[i];
 
 		if(cmd->sync_cmd == 1){
-			printk(KERN_ERR "0x%08lx : ", (unsigned long)cmd->frame_phys_addr);
+			printk("0x%08lx : ", (unsigned long)cmd->frame_phys_addr);
 		}
 	}
-	printk(KERN_ERR "megasas[%d]: Dumping Done.\n\n",instance->host->host_no);
+	printk("\n");
+	printk(KERN_ERR "megasas[%d]: Dumping Done.\n"
+	       KERN_ERR "\n",instance->host->host_no);
 }
 
 /**
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index 08060fb..43bc5d8 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -5936,7 +5936,8 @@ static int __init init_osst(void)
 {
 	int err;
 
-	printk(KERN_INFO "osst :I: Tape driver with OnStream support version %s\nosst :I: %s\n", osst_version, cvsid);
+	printk(KERN_INFO "osst :I: Tape driver with OnStream support version %s\n"
+	       KERN_INFO "osst :I: %s\n", osst_version, cvsid);
 
 	validate_options();
 
diff --git a/drivers/scsi/zalon.c b/drivers/scsi/zalon.c
index 4b5f908..24f0b9e 100644
--- a/drivers/scsi/zalon.c
+++ b/drivers/scsi/zalon.c
@@ -137,7 +137,7 @@ zalon_probe(struct parisc_device *dev)
 		goto fail;
 
 	if (request_irq(dev->irq, ncr53c8xx_intr, IRQF_SHARED, "zalon", host)) {
-		printk(KERN_ERR "%s: irq problem with %d, detaching\n ",
+		printk(KERN_ERR "%s: irq problem with %d, detaching\n",
 			dev->dev.bus_id, dev->irq);
 		goto fail;
 	}
diff --git a/drivers/video/savage/savagefb_driver.c b/drivers/video/savage/savagefb_driver.c
index b855f4a..b60c32b 100644
--- a/drivers/video/savage/savagefb_driver.c
+++ b/drivers/video/savage/savagefb_driver.c
@@ -515,27 +515,30 @@ static void SavagePrintRegs(struct savagefb_par *par)
 	int vgaCRIndex = 0x3d4;
 	int vgaCRReg = 0x3d5;
 
-	printk(KERN_DEBUG "SR    x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE "
-	       "xF");
+	printk(KERN_DEBUG
+	       "SR    x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF");
 
 	for (i = 0; i < 0x70; i++) {
 		if (!(i % 16))
-			printk(KERN_DEBUG "\nSR%xx ", i >> 4);
+			printk("\n" KERN_DEBUG "SR%xx ", i >> 4);
 		vga_out8(0x3c4, i, par);
-		printk(KERN_DEBUG " %02x", vga_in8(0x3c5, par));
+		printk(" %02x", vga_in8(0x3c5, par));
 	}
 
-	printk(KERN_DEBUG "\n\nCR    x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC "
-	       "xD xE xF");
+	printk("\n"
+	       KERN_DEBUG "\n"
+	       KERN_DEBUG
+	       "CR    x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF");
 
 	for (i = 0; i < 0xB7; i++) {
 		if (!(i % 16))
-			printk(KERN_DEBUG "\nCR%xx ", i >> 4);
+			printk("\n" KERN_DEBUG "CR%xx ", i >> 4);
 		vga_out8(vgaCRIndex, i, par);
-		printk(KERN_DEBUG " %02x", vga_in8(vgaCRReg, par));
+		printk(" %02x", vga_in8(vgaCRReg, par));
 	}
 
-	printk(KERN_DEBUG "\n\n");
+	printk("\n"
+	       KERN_DEBUG "\n");
 }
 #endif
 
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index 74901e9..59f3cb4 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -81,10 +81,11 @@ do { \
 { \
   if (!(x)) \
   { \
-    printk(KERN_ERR "\nDLM:  Assertion failed on line %d of file %s\n" \
-               "DLM:  assertion:  \"%s\"\n" \
-               "DLM:  time = %lu\n", \
-               __LINE__, __FILE__, #x, jiffies); \
+    printk(KERN_ERR "\n" \
+	   KERN_ERR "DLM:  Assertion failed on line %d of file %s\n" \
+	   KERN_ERR "DLM:  assertion:  \"%s\"\n" \
+	   KERN_ERR "DLM:  time = %lu\n", \
+	   __LINE__, __FILE__, #x, jiffies); \
     {do} \
     printk("\n"); \
     BUG(); \
diff --git a/fs/freevxfs/vxfs_bmap.c b/fs/freevxfs/vxfs_bmap.c
index f86fd3c..c65b39a 100644
--- a/fs/freevxfs/vxfs_bmap.c
+++ b/fs/freevxfs/vxfs_bmap.c
@@ -166,7 +166,9 @@ vxfs_bmap_indir(struct inode *ip, long indir, int size, long block)
 			struct vxfs_typed_dev4	*typ4 =
 				(struct vxfs_typed_dev4 *)typ;
 
-			printk(KERN_INFO "\n\nTYPED_DEV4 detected!\n");
+			printk(KERN_INFO "\n"
+			       KERN_INFO "\n"
+			       KERN_INFO "TYPED_DEV4 detected!\n");
 			printk(KERN_INFO "block: %Lu\tsize: %Ld\tdev: %d\n",
 			       (unsigned long long) typ4->vd4_block,
 			       (unsigned long long) typ4->vd4_size,
@@ -229,7 +231,9 @@ vxfs_bmap_typed(struct inode *ip, long iblock)
 			struct vxfs_typed_dev4	*typ4 =
 				(struct vxfs_typed_dev4 *)typ;
 
-			printk(KERN_INFO "\n\nTYPED_DEV4 detected!\n");
+			printk(KERN_INFO "\n"
+			       KERN_INFO "\n"
+			       KERN_INFO "TYPED_DEV4 detected!\n");
 			printk(KERN_INFO "block: %Lu\tsize: %Ld\tdev: %d\n",
 			       (unsigned long long) typ4->vd4_block,
 			       (unsigned long long) typ4->vd4_size,
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index 91d1d0f..3c51cda 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -1094,7 +1094,8 @@ int jffs2_write_nand_badblock(struct jffs2_sb_info *c, struct jffs2_eraseblock *
 	if (!c->mtd->block_markbad)
 		return 1; // What else can we do?
 
-	printk(KERN_WARNING "JFFS2: marking eraseblock at %08x\n as bad", bad_offset);
+	printk(KERN_WARNING "JFFS2: marking eraseblock at %08x\n"
+	       KERN_WARNING " as bad", bad_offset);
 	ret = c->mtd->block_markbad(c->mtd, bad_offset);
 
 	if (ret) {
diff --git a/mm/slub.c b/mm/slub.c
index 04151da..2bbf0d9 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2914,7 +2914,8 @@ static void resiliency_test(void)
 
 	p = kzalloc(16, GFP_KERNEL);
 	p[16] = 0x12;
-	printk(KERN_ERR "\n1. kmalloc-16: Clobber Redzone/next pointer"
+	printk(KERN_ERR "\n"
+	       KERN_ERR "1. kmalloc-16: Clobber Redzone/next pointer"
 			" 0x12->0x%p\n\n", p + 16);
 
 	validate_slab_cache(kmalloc_caches + 4);
@@ -2922,7 +2923,8 @@ static void resiliency_test(void)
 	/* Hmmm... The next two are dangerous */
 	p = kzalloc(32, GFP_KERNEL);
 	p[32 + sizeof(void *)] = 0x34;
-	printk(KERN_ERR "\n2. kmalloc-32: Clobber next pointer/next slab"
+	printk(KERN_ERR "\n"
+	       KERN_ERR "2. kmalloc-32: Clobber next pointer/next slab"
 		 	" 0x34 -> -0x%p\n", p);
 	printk(KERN_ERR "If allocated object is overwritten then not detectable\n\n");
 
@@ -2930,12 +2932,14 @@ static void resiliency_test(void)
 	p = kzalloc(64, GFP_KERNEL);
 	p += 64 + (get_cycles() & 0xff) * sizeof(void *);
 	*p = 0x56;
-	printk(KERN_ERR "\n3. kmalloc-64: corrupting random byte 0x56->0x%p\n",
+	printk(KERN_ERR "\n"
+	       KERN_ERR "3. kmalloc-64: corrupting random byte 0x56->0x%p\n",
 									p);
 	printk(KERN_ERR "If allocated object is overwritten then not detectable\n\n");
 	validate_slab_cache(kmalloc_caches + 6);
 
-	printk(KERN_ERR "\nB. Corruption after free\n");
+	printk(KERN_ERR "\n"
+	       KERN_ERR "B. Corruption after free\n");
 	p = kzalloc(128, GFP_KERNEL);
 	kfree(p);
 	*p = 0x78;
@@ -2945,13 +2949,15 @@ static void resiliency_test(void)
 	p = kzalloc(256, GFP_KERNEL);
 	kfree(p);
 	p[50] = 0x9a;
-	printk(KERN_ERR "\n2. kmalloc-256: Clobber 50th byte 0x9a->0x%p\n\n", p);
+	printk(KERN_ERR "\n"
+	       KERN_ERR "2. kmalloc-256: Clobber 50th byte 0x9a->0x%p\n\n", p);
 	validate_slab_cache(kmalloc_caches + 8);
 
 	p = kzalloc(512, GFP_KERNEL);
 	kfree(p);
 	p[512] = 0xab;
-	printk(KERN_ERR "\n3. kmalloc-512: Clobber redzone 0xab->0x%p\n\n", p);
+	printk(KERN_ERR "\n"
+	       KERN_ERR "3. kmalloc-512: Clobber redzone 0xab->0x%p\n\n", p);
 	validate_slab_cache(kmalloc_caches + 9);
 }
 #else



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* Grant Grundler (grundler@parisc-linux.org) wrote:
> On Sun, Aug 12, 2007 at 10:54:49AM -0400, Mathieu Desnoyers wrote:
> > Use the new generic cmpxchg_local (disables interrupt). Also use the generic
> > cmpxchg as fallback if SMP is not set.
> 
> Mathieu,
> thanks for adding __cmpxchg_local to parisc.... but why do we need it?
> 
> By definition, atomic operators are, well, atomic.
> 
> I searched for __cmpxchg_local and found this reference:
>     http://www.ussg.iu.edu/hypermail/linux/kernel/0612.2/1337.html
> 
> but the "root" of that thread (Dec 20, 2006):
>     http://www.ussg.iu.edu/hypermail/linux/kernel/0612.2/1334.html
> 
> Doesn't explain the difference between "local" and "non-local" either.
> Per CPU data should only need memory barriers (in some cases) and
> protection against interrupts (in probably more cases). So I'm not
> understanding why a new set of APIs is needed.
> 
> Can you add a description to Documentation/atomic_ops.txt ?
> *sigh* sorry for being "late to the party" on this one...
> 

Does Documentation/local_ops.txt answer your questions ? If not, please
tell me and I'll gladly explain more.

Mathieu

> cheers,
> grant
> 
> > 
> > Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> > CC: clameter@sgi.com
> > CC: parisc-linux@parisc-linux.org
> > ---
> >  include/asm-parisc/atomic.h |   29 +++++++++++++++++++++++++++++
> >  1 file changed, 29 insertions(+)
> > 
> > Index: linux-2.6-lttng/include/asm-parisc/atomic.h
> > ===================================================================
> > --- linux-2.6-lttng.orig/include/asm-parisc/atomic.h	2007-07-20 19:44:40.000000000 -0400
> > +++ linux-2.6-lttng/include/asm-parisc/atomic.h	2007-07-20 19:44:47.000000000 -0400
> > @@ -122,6 +122,35 @@ __cmpxchg(volatile void *ptr, unsigned l
> >  				    (unsigned long)_n_, sizeof(*(ptr))); \
> >    })
> >  
> > +#include <asm-generic/cmpxchg-local.h>
> > +
> > +static inline unsigned long __cmpxchg_local(volatile void *ptr,
> > +				      unsigned long old,
> > +				      unsigned long new_, int size)
> > +{
> > +	switch (size) {
> > +#ifdef CONFIG_64BIT
> > +	case 8:	return __cmpxchg_u64((unsigned long *)ptr, old, new_);
> > +#endif
> > +	case 4:	return __cmpxchg_u32(ptr, old, new_);
> > +	default:
> > +		return __cmpxchg_local_generic(ptr, old, new_, size);
> > +	}
> > +}
> > +
> > +/*
> > + * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
> > + * them available.
> > + */
> > +#define cmpxchg_local(ptr,o,n)					  	\
> > +     (__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o),	\
> > +			   	 (unsigned long)(n), sizeof(*(ptr)))
> > +#ifdef CONFIG_64BIT
> > +#define cmpxchg64_local(ptr,o,n) cmpxchg_local((ptr), (o), (n))
> > +#else
> > +#define cmpxchg64_local(ptr,o,n) __cmpxchg64_local_generic((ptr), (o), (n))
> > +#endif
> > +
> >  /* Note that we need not lock read accesses - aligned word writes/reads
> >   * are atomic, so a reader never sees unconsistent values.
> >   *
> > 
> > -- 
> > Mathieu Desnoyers
> > Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
> > OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
> > _______________________________________________
> > parisc-linux mailing list
> > parisc-linux@lists.parisc-linux.org
> > http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
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On Tue, 2007-08-28 at 01:21 +0200, Thibaut VARENE wrote:
> +F:    drivers/parisc/

Thanks.  This is what I have now:

PARISC ARCHITECTURE
P:	Matthew Wilcox
M:	matthew@wil.cx
P:	Grant Grundler
M:	grundler@parisc-linux.org
P:	Kyle McMartin
M:	kyle@parisc-linux.org
L:	parisc-linux@parisc-linux.org
W:	http://www.parisc-linux.org/
T:	git kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
T:	cvs cvs.parisc-linux.org:/var/cvs/linux-2.6
S:	Maintained
F:	arch/parisc/
F:	drivers/parisc/
F:	include/asm-parisc/



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Xref: news.gmane.org gmane.linux.ports.parisc:25446

On Mon, Aug 27, 2007 at 05:11:40PM -0400, Mathieu Desnoyers wrote:
...
> > Can you add a description to Documentation/atomic_ops.txt ?
> > *sigh* sorry for being "late to the party" on this one...
> 
> Does Documentation/local_ops.txt answer your questions ? If not, please
> tell me and I'll gladly explain more.

Yes, it does mostly - thanks. 

A few questions/nits:
o Did you attempt quantify how many places in the kernel could use this?
  I'm just trying to get a feel for how useful this really is vs just 
  using existing mechanisms (that people understand) to implement a 
  non-SMP-safe counter that protects updates (writes) against interrupts.
  If you did, adding some referencs to local_ops.txt would be helpful
  so folks could look for examples of "correct usage".

o Wording in local_ops.txt: "on the 
	"... it will then appear to be written out of order wrt
	 other memory writes on the owner CPU."

  I'd like to suggest "by the owner CPU".

o How can a local_t counter protect updates (writes) against interrupts 
  but not preemption?
  I always thought preemption required some sort of interrupt or trap.
  Maybe the local_ops.txt explains that and I just missed it.

  DaveM explained updates "in flight" would not be visible to interrupts
  and I suspect that's the answer to my question....but then I don't "feel
  good" the local_ops are safe to update in interrupts _and_ the process
  context kernel.  Maybe the relationship between local_ops, preemption,
  and interrupts could be explained more carefully in local_ops.txt.

o OK to add a reference for local_ops.txt to atomic_ops.txt?
  They are obviously related and anyone "discovering" one of the docs
  should be made aware of the other.
  Patch+log entry appended below. Please sign-off if that's ok with you.


thanks,
grant

Diff+Commit entry against 2.6.22.5:

local_t is a variant of atomic_t and has related ops to match.
Add reference for local_t documentation to atomic_ops.txt. 

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>


--- 2.6.22.5-ORIG/Documentation/atomic_ops.txt	2007-08-27 22:50:27.000000000 -0700
+++ 2.6.22.5-ggg/Documentation/atomic_ops.txt	2007-08-27 22:54:44.000000000 -0700
@@ -14,6 +14,10 @@
 
 	typedef struct { volatile int counter; } atomic_t;
 
+local_t is very similar to atomic_t. If the counter is per CPU and only
+updated by one CPU, local_t is probably more appropriate. Please see
+Documentation/local_ops.txt for the semantics of local_t.
+
 	The first operations to implement for atomic_t's are the
 initializers and plain reads.
 
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Xref: news.gmane.org gmane.linux.ports.parisc:25447

* Grant Grundler (grundler@parisc-linux.org) wrote:
> On Mon, Aug 27, 2007 at 05:11:40PM -0400, Mathieu Desnoyers wrote:
> ...
> > > Can you add a description to Documentation/atomic_ops.txt ?
> > > *sigh* sorry for being "late to the party" on this one...
> > 
> > Does Documentation/local_ops.txt answer your questions ? If not, please
> > tell me and I'll gladly explain more.
> 
> Yes, it does mostly - thanks. 
> 
> A few questions/nits:
> o Did you attempt quantify how many places in the kernel could use this?
>   I'm just trying to get a feel for how useful this really is vs just 
>   using existing mechanisms (that people understand) to implement a 
>   non-SMP-safe counter that protects updates (writes) against interrupts.
>   If you did, adding some referencs to local_ops.txt would be helpful
>   so folks could look for examples of "correct usage".
> 

Good question. Since it is useful to implement fast, interrupt
reentrant, counters of any kind without disabling interrupts, I think it
could be vastely used in the kernel. I also use it in my LTTng kernel
tracer implementation to provide very fast buffer management. It is used
in LTTng, but could be used for most kind of buffering management too;
meaning that we could manage buffers without disabling interrupts.

So I don't expect to come with an "upper bound" about where it can be
used...

> o Wording in local_ops.txt: "on the 
> 	"... it will then appear to be written out of order wrt
> 	 other memory writes on the owner CPU."
> 
>   I'd like to suggest "by the owner CPU".
> 

Ok, fixing.. thanks!

> o How can a local_t counter protect updates (writes) against interrupts 
>   but not preemption?
>   I always thought preemption required some sort of interrupt or trap.
>   Maybe the local_ops.txt explains that and I just missed it.
> 

"Local atomic operations only guarantee variable modification atomicity
wrt the CPU which owns the data. Therefore, care must taken to make sure
that only one CPU writes to the local_t data. This is done by using per
cpu data and making sure that we modify it from within a preemption safe
context." -> therefore, preemption must be disabled around local ops
usage. This is required to be pinned to one CPU anyway.

>   DaveM explained updates "in flight" would not be visible to interrupts
>   and I suspect that's the answer to my question....but then I don't "feel
>   good" the local_ops are safe to update in interrupts _and_ the process
>   context kernel.  Maybe the relationship between local_ops, preemption,
>   and interrupts could be explained more carefully in local_ops.txt.
> 

Does the paragraph above explain it enough or should I add some more
explanation ?

> o OK to add a reference for local_ops.txt to atomic_ops.txt?
>   They are obviously related and anyone "discovering" one of the docs
>   should be made aware of the other.
>   Patch+log entry appended below. Please sign-off if that's ok with you.
> 

I'm perfectly ok with the idea, but suggest a small modification. See
below.

> 
> thanks,
> grant
> 
> Diff+Commit entry against 2.6.22.5:
> 
> local_t is a variant of atomic_t and has related ops to match.
> Add reference for local_t documentation to atomic_ops.txt. 
> 
> Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
> 
> 
> --- 2.6.22.5-ORIG/Documentation/atomic_ops.txt	2007-08-27 22:50:27.000000000 -0700
> +++ 2.6.22.5-ggg/Documentation/atomic_ops.txt	2007-08-27 22:54:44.000000000 -0700
> @@ -14,6 +14,10 @@
>  
>  	typedef struct { volatile int counter; } atomic_t;
>  
> +local_t is very similar to atomic_t. If the counter is per CPU and only
> +updated by one CPU, local_t is probably more appropriate. Please see
> +Documentation/local_ops.txt for the semantics of local_t.
> +
>  	The first operations to implement for atomic_t's are the
>  initializers and plain reads.
>  

The text snippet is good, but I am not sure it belongs between the
description of atomic_t type and its initializers. What if we do
something like: (with context, I tried to explain the distinction
between atomic_t and local_t some more)


                Semantics and Behavior of Atomic and
                         Bitmask Operations

                          David S. Miller

        This document is intended to serve as a guide to Linux port
maintainers on how to implement atomic counter, bitops, and spinlock
interfaces properly.

atomic_t should be used to provide a type with update primitives
executed atomically from any CPU.  If the counter is per CPU and only
updated by one CPU, local_t is probably more appropriate.  Please see
Documentation/local_ops.txt for the semantics of local_t.

        The atomic_t type should be defined as a signed integer.
Also, it should be made opaque such that any kind of cast to a normal
C integer type will fail.  Something like the following should
suffice: 


Mathieu

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
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Xref: news.gmane.org gmane.linux.ports.parisc:25448

* Grant Grundler (grundler@parisc-linux.org) wrote:
> On Tue, Aug 28, 2007 at 07:50:18AM -0400, Mathieu Desnoyers wrote:
> ...
> > > A few questions/nits:
> > > o Did you attempt quantify how many places in the kernel could use this?
> > >   I'm just trying to get a feel for how useful this really is vs just 
> > >   using existing mechanisms (that people understand) to implement a 
> > >   non-SMP-safe counter that protects updates (writes) against interrupts.
> > >   If you did, adding some referencs to local_ops.txt would be helpful
> > >   so folks could look for examples of "correct usage".
> > > 
> > 
> > Good question. Since it is useful to implement fast, interrupt
> > reentrant, counters of any kind without disabling interrupts, I think it
> > could be vastely used in the kernel. I also use it in my LTTng kernel
> > tracer implementation to provide very fast buffer management. It is used
> > in LTTng, but could be used for most kind of buffering management too;
> > meaning that we could manage buffers without disabling interrupts.
> > 
> > So I don't expect to come with an "upper bound" about where it can be
> > used...
> 
> Ok...so I'll try to find one in 2.6.22.5:
> grundler <1855>find -name \*.c | xargs fgrep DEFINE_PER_CPU | fgrep atomic_t
> ./arch/s390/kernel/time.c:static DEFINE_PER_CPU(atomic_t, etr_sync_word);
> grundler <1856>find -name \*.c | xargs fgrep DEFINE_PER_CPU | fgrep local_t
> ./arch/x86_64/kernel/nmi.c:static DEFINE_PER_CPU(local_t, alert_counter);
> 
> uhm, I was expecting more than that.  Maybe there is some other systemic
> problem with how PER_CPU stuff is used/declared?
> 

the local ops has just been standardized in 2.6.22 though a patchset I
did. I would not expect the code to start using them this quickly. Or
maybe is it just that I am doing a terrible marketing job ;)

> In any case, some references to LTT usage would be quite helpful.
> E.g. a list of file and variable names at the end of local_ops.txt file.
> 

LTT is not mainlined (yet!) ;)

> 
> > > o How can a local_t counter protect updates (writes) against interrupts 
> > >   but not preemption?
> > >   I always thought preemption required some sort of interrupt or trap.
> > >   Maybe the local_ops.txt explains that and I just missed it.
> > > 
> > 
> > "Local atomic operations only guarantee variable modification atomicity
> > wrt the CPU which owns the data. Therefore, care must taken to make sure
> > that only one CPU writes to the local_t data. This is done by using per
> > cpu data and making sure that we modify it from within a preemption safe
> > context." -> therefore, preemption must be disabled around local ops
> > usage. This is required to be pinned to one CPU anyway.
> 
> Sorry...the quoted text doesn't answer my question. It's a definition
> of semantics, not an explanation of the "mechanics".
> 
> I want to know what happens when (if?) an interrupt occurs in the
> middle of a read/modify/write sequence that isn't prefixed with LOCK
> (or something similar for other arches like "store locked conditional" ops).
> 
> Stating the semantics is a good thing - but not a substitution for
> describing how it works for a given architecture. Either in the code
> or in local_ops.txt. Otherwise people like me won't use it because
> we don't believe that (or understand how) it really works.
> 

Quoting Intel 64 and IA-32 Architectures Software Developer's Manual

3.2 Instructions
LOCK - Assert LOCK# Signal Prefix

Causes the processor's LOCK# signal to be asserted during execution of
the accompanying instruction (turns the instruction into an atomic
instruction). In a multiprocessor environment, the LOCK# signal insures
that the processor has exclusive use of any shared memory while the
signal is asserted.

And if we take a look at some of the atomic primitives which are used in
i386 local.h:

add (for inc/dec/add/sub)
xadd
cmpxchg

All these instructions, just like any other, can be interrupted by an
external interrupt or cause a trap, exception, or fault. Interrupt
handler are executing between instructions and traps/exceptions/faults
will either execute instead of the faulty instruction or after is has
been executed. In all these cases, each instruction can be seen as
executing atomically wrt the local CPU. This is exactly what permits
asm-i386/local.h to define out the LOCK prefix for UP kernels.

I use the same trick UP kernel are using, but I deploy it in SMP
context, but I require the CPU to be the only one to access the memory
locations written to by the local ops.

Basically, since the memory location is _not_ shared across CPUs for
writing, we can safely write to it without holding the LOCK signal.


> > >   DaveM explained updates "in flight" would not be visible to interrupts
> > >   and I suspect that's the answer to my question....but then I don't "feel
> > >   good" the local_ops are safe to update in interrupts _and_ the process
> > >   context kernel.  Maybe the relationship between local_ops, preemption,
> > >   and interrupts could be explained more carefully in local_ops.txt.
> > > 
> > 
> > Does the paragraph above explain it enough or should I add some more
> > explanation ?
> 
> Please add a bit more detail. If DaveM is correct (he normally is), then
> there must be limits on how the local_t can be used in the kernel process
> and interrupt contexts. I'd like those rules spelled out very clearly
> since it's easy to get wrong and tracking down such a bug is quite painful.
> 
> Note: I already missed the one critical sentence about only the "owning"
> CPU can write the value....there seem to be other limitations as well
> with respect to interrupts.
> 

Ok, let's give a try at a clear statement:

- Variables touched by local ops must be per cpu variables.
- _Only_ the CPU owner of these variables must write to them.
- This CPU can use local ops from any context (process, irq, softirq, nmi, ...)
  to update its local_t variables.
- Preemption (or interrupts) must be disabled when using local ops in
  process context to   make sure the process won't be migrated to a
  different CPU between getting the per-cpu variable and doing the
  actual local op.
- When using local ops in interrupt context, no special care must be
  taken on a mainline kernel, since they will run on the local CPU with
  preemption already disabled. I suggest, however, to explicitly
  disable preemption anyway to make sure it will still work correctly on
  -rt kernels.
- Reading the local cpu variable will provide the current copy of the
  variable.
- Reads of these variables can be done from any CPU, because updates to
  "long", aligned, variables are always atomic. Since no memory
  synchronization is done by the writer CPU, an outdated copy of the
  variable can be read when reading some _other_ cpu's variables.


> > > o OK to add a reference for local_ops.txt to atomic_ops.txt?
> > >   They are obviously related and anyone "discovering" one of the docs
> > >   should be made aware of the other.
> > >   Patch+log entry appended below. Please sign-off if that's ok with you.
> > > 
> > 
> > I'm perfectly ok with the idea, but suggest a small modification. See
> > below.
> 
> Looks fine to me. Add your "Signed-off-by" and submit to DaveM
> since he seems to be the maintainer of atomic_ops.txt.
> 

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>

Thanks,

Mathieu

> cheers,
> grant
> 
> > 
> > > 
> > > thanks,
> > > grant
> > > 
> > > Diff+Commit entry against 2.6.22.5:
> > > 
> > > local_t is a variant of atomic_t and has related ops to match.
> > > Add reference for local_t documentation to atomic_ops.txt. 
> > > 
> > > Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
> > > 
> > > 
> > > --- 2.6.22.5-ORIG/Documentation/atomic_ops.txt	2007-08-27 22:50:27.000000000 -0700
> > > +++ 2.6.22.5-ggg/Documentation/atomic_ops.txt	2007-08-27 22:54:44.000000000 -0700
> > > @@ -14,6 +14,10 @@
> > >  
> > >  	typedef struct { volatile int counter; } atomic_t;
> > >  
> > > +local_t is very similar to atomic_t. If the counter is per CPU and only
> > > +updated by one CPU, local_t is probably more appropriate. Please see
> > > +Documentation/local_ops.txt for the semantics of local_t.
> > > +
> > >  	The first operations to implement for atomic_t's are the
> > >  initializers and plain reads.
> > >  
> > 
> > The text snippet is good, but I am not sure it belongs between the
> > description of atomic_t type and its initializers. What if we do
> > something like: (with context, I tried to explain the distinction
> > between atomic_t and local_t some more)
> > 
> > 
> >                 Semantics and Behavior of Atomic and
> >                          Bitmask Operations
> > 
> >                           David S. Miller
> > 
> >         This document is intended to serve as a guide to Linux port
> > maintainers on how to implement atomic counter, bitops, and spinlock
> > interfaces properly.
> > 
> > atomic_t should be used to provide a type with update primitives
> > executed atomically from any CPU.  If the counter is per CPU and only
> > updated by one CPU, local_t is probably more appropriate.  Please see
> > Documentation/local_ops.txt for the semantics of local_t.
> > 
> >         The atomic_t type should be defined as a signed integer.
> > Also, it should be made opaque such that any kind of cast to a normal
> > C integer type will fail.  Something like the following should
> > suffice: 
> > 
> > 
> > Mathieu
> > 
> > -- 
> > Mathieu Desnoyers
> > Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
> > OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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Xref: news.gmane.org gmane.linux.ports.parisc:25449

On Tue, Aug 28, 2007 at 07:50:18AM -0400, Mathieu Desnoyers wrote:
...
> > A few questions/nits:
> > o Did you attempt quantify how many places in the kernel could use this?
> >   I'm just trying to get a feel for how useful this really is vs just 
> >   using existing mechanisms (that people understand) to implement a 
> >   non-SMP-safe counter that protects updates (writes) against interrupts.
> >   If you did, adding some referencs to local_ops.txt would be helpful
> >   so folks could look for examples of "correct usage".
> > 
> 
> Good question. Since it is useful to implement fast, interrupt
> reentrant, counters of any kind without disabling interrupts, I think it
> could be vastely used in the kernel. I also use it in my LTTng kernel
> tracer implementation to provide very fast buffer management. It is used
> in LTTng, but could be used for most kind of buffering management too;
> meaning that we could manage buffers without disabling interrupts.
> 
> So I don't expect to come with an "upper bound" about where it can be
> used...

Ok...so I'll try to find one in 2.6.22.5:
grundler <1855>find -name \*.c | xargs fgrep DEFINE_PER_CPU | fgrep atomic_t
./arch/s390/kernel/time.c:static DEFINE_PER_CPU(atomic_t, etr_sync_word);
grundler <1856>find -name \*.c | xargs fgrep DEFINE_PER_CPU | fgrep local_t
./arch/x86_64/kernel/nmi.c:static DEFINE_PER_CPU(local_t, alert_counter);

uhm, I was expecting more than that.  Maybe there is some other systemic
problem with how PER_CPU stuff is used/declared?

In any case, some references to LTT usage would be quite helpful.
E.g. a list of file and variable names at the end of local_ops.txt file.


> > o How can a local_t counter protect updates (writes) against interrupts 
> >   but not preemption?
> >   I always thought preemption required some sort of interrupt or trap.
> >   Maybe the local_ops.txt explains that and I just missed it.
> > 
> 
> "Local atomic operations only guarantee variable modification atomicity
> wrt the CPU which owns the data. Therefore, care must taken to make sure
> that only one CPU writes to the local_t data. This is done by using per
> cpu data and making sure that we modify it from within a preemption safe
> context." -> therefore, preemption must be disabled around local ops
> usage. This is required to be pinned to one CPU anyway.

Sorry...the quoted text doesn't answer my question. It's a definition
of semantics, not an explanation of the "mechanics".

I want to know what happens when (if?) an interrupt occurs in the
middle of a read/modify/write sequence that isn't prefixed with LOCK
(or something similar for other arches like "store locked conditional" ops).

Stating the semantics is a good thing - but not a substitution for
describing how it works for a given architecture. Either in the code
or in local_ops.txt. Otherwise people like me won't use it because
we don't believe that (or understand how) it really works.

> >   DaveM explained updates "in flight" would not be visible to interrupts
> >   and I suspect that's the answer to my question....but then I don't "feel
> >   good" the local_ops are safe to update in interrupts _and_ the process
> >   context kernel.  Maybe the relationship between local_ops, preemption,
> >   and interrupts could be explained more carefully in local_ops.txt.
> > 
> 
> Does the paragraph above explain it enough or should I add some more
> explanation ?

Please add a bit more detail. If DaveM is correct (he normally is), then
there must be limits on how the local_t can be used in the kernel process
and interrupt contexts. I'd like those rules spelled out very clearly
since it's easy to get wrong and tracking down such a bug is quite painful.

Note: I already missed the one critical sentence about only the "owning"
CPU can write the value....there seem to be other limitations as well
with respect to interrupts.

> > o OK to add a reference for local_ops.txt to atomic_ops.txt?
> >   They are obviously related and anyone "discovering" one of the docs
> >   should be made aware of the other.
> >   Patch+log entry appended below. Please sign-off if that's ok with you.
> > 
> 
> I'm perfectly ok with the idea, but suggest a small modification. See
> below.

Looks fine to me. Add your "Signed-off-by" and submit to DaveM
since he seems to be the maintainer of atomic_ops.txt.

cheers,
grant

> 
> > 
> > thanks,
> > grant
> > 
> > Diff+Commit entry against 2.6.22.5:
> > 
> > local_t is a variant of atomic_t and has related ops to match.
> > Add reference for local_t documentation to atomic_ops.txt. 
> > 
> > Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
> > 
> > 
> > --- 2.6.22.5-ORIG/Documentation/atomic_ops.txt	2007-08-27 22:50:27.000000000 -0700
> > +++ 2.6.22.5-ggg/Documentation/atomic_ops.txt	2007-08-27 22:54:44.000000000 -0700
> > @@ -14,6 +14,10 @@
> >  
> >  	typedef struct { volatile int counter; } atomic_t;
> >  
> > +local_t is very similar to atomic_t. If the counter is per CPU and only
> > +updated by one CPU, local_t is probably more appropriate. Please see
> > +Documentation/local_ops.txt for the semantics of local_t.
> > +
> >  	The first operations to implement for atomic_t's are the
> >  initializers and plain reads.
> >  
> 
> The text snippet is good, but I am not sure it belongs between the
> description of atomic_t type and its initializers. What if we do
> something like: (with context, I tried to explain the distinction
> between atomic_t and local_t some more)
> 
> 
>                 Semantics and Behavior of Atomic and
>                          Bitmask Operations
> 
>                           David S. Miller
> 
>         This document is intended to serve as a guide to Linux port
> maintainers on how to implement atomic counter, bitops, and spinlock
> interfaces properly.
> 
> atomic_t should be used to provide a type with update primitives
> executed atomically from any CPU.  If the counter is per CPU and only
> updated by one CPU, local_t is probably more appropriate.  Please see
> Documentation/local_ops.txt for the semantics of local_t.
> 
>         The atomic_t type should be defined as a signed integer.
> Also, it should be made opaque such that any kind of cast to a normal
> C integer type will fail.  Something like the following should
> suffice: 
> 
> 
> Mathieu
> 
> -- 
> Mathieu Desnoyers
> Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
> OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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Subject: Re: [parisc-linux] [patch 15/23] Add cmpxchg_local to parisc
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On Sun, Aug 12, 2007 at 10:54:49AM -0400, Mathieu Desnoyers wrote:
> Use the new generic cmpxchg_local (disables interrupt). Also use the generic
> cmpxchg as fallback if SMP is not set.

Mathieu,
thanks for adding __cmpxchg_local to parisc.... but why do we need it?

By definition, atomic operators are, well, atomic.

I searched for __cmpxchg_local and found this reference:
    http://www.ussg.iu.edu/hypermail/linux/kernel/0612.2/1337.html

but the "root" of that thread (Dec 20, 2006):
    http://www.ussg.iu.edu/hypermail/linux/kernel/0612.2/1334.html

Doesn't explain the difference between "local" and "non-local" either.
Per CPU data should only need memory barriers (in some cases) and
protection against interrupts (in probably more cases). So I'm not
understanding why a new set of APIs is needed.

Can you add a description to Documentation/atomic_ops.txt ?
*sigh* sorry for being "late to the party" on this one...

cheers,
grant

> 
> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> CC: clameter@sgi.com
> CC: parisc-linux@parisc-linux.org
> ---
>  include/asm-parisc/atomic.h |   29 +++++++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
> 
> Index: linux-2.6-lttng/include/asm-parisc/atomic.h
> ===================================================================
> --- linux-2.6-lttng.orig/include/asm-parisc/atomic.h	2007-07-20 19:44:40.000000000 -0400
> +++ linux-2.6-lttng/include/asm-parisc/atomic.h	2007-07-20 19:44:47.000000000 -0400
> @@ -122,6 +122,35 @@ __cmpxchg(volatile void *ptr, unsigned l
>  				    (unsigned long)_n_, sizeof(*(ptr))); \
>    })
>  
> +#include <asm-generic/cmpxchg-local.h>
> +
> +static inline unsigned long __cmpxchg_local(volatile void *ptr,
> +				      unsigned long old,
> +				      unsigned long new_, int size)
> +{
> +	switch (size) {
> +#ifdef CONFIG_64BIT
> +	case 8:	return __cmpxchg_u64((unsigned long *)ptr, old, new_);
> +#endif
> +	case 4:	return __cmpxchg_u32(ptr, old, new_);
> +	default:
> +		return __cmpxchg_local_generic(ptr, old, new_, size);
> +	}
> +}
> +
> +/*
> + * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
> + * them available.
> + */
> +#define cmpxchg_local(ptr,o,n)					  	\
> +     (__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o),	\
> +			   	 (unsigned long)(n), sizeof(*(ptr)))
> +#ifdef CONFIG_64BIT
> +#define cmpxchg64_local(ptr,o,n) cmpxchg_local((ptr), (o), (n))
> +#else
> +#define cmpxchg64_local(ptr,o,n) __cmpxchg64_local_generic((ptr), (o), (n))
> +#endif
> +
>  /* Note that we need not lock read accesses - aligned word writes/reads
>   * are atomic, so a reader never sees unconsistent values.
>   *
> 
> -- 
> Mathieu Desnoyers
> Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
> OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
> _______________________________________________
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Subject: Re: [parisc-linux] [PATCH] Prefix each line of multiline
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Cc: linux-ide@vger.kernel.org,
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On Sun, 26 Aug 2007, Geert Uytterhoeven wrote:

> What I mean is that probably there used to be a printk() call starting with
> `\n'. Then someone added a `KERN_ERR' in front of it.

 I gather '\n' at the beginning is to assure the following line is output 
on a separate line rather than as a continuation of another one which may 
have been output without a trailing '\n'.  A situation where printk() is 
called with a string containing no trailing '\n' may be discouraged, but 
there are some more or less justified exceptions.  For example the SCSI 
disk spin-up code is one.

 Therefore it may be reasonable for more critical messages -- perhaps not 
ones at KERN_ERR, but certainly KERN_CRIT and higher ones -- that may 
potentially happen asynchronously to start with '\n'.  In this case a call 
would look like this:

	printk("\n" KERN_CRIT "The actual message.\n");

Of course based on "console_loglevel" and "default_message_level" the 
leading '\n' may still get swallowed from what gets printed to the console 
terminal, but in reality I do not think that poses a problem, as these 
both can be set by a system administrator according to the local policy.

  Maciej
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commit 5d04e33a34814d0cc3029f4b1ba0e62829cb4610
Author: Matthew Wilcox <matthew@wil.cx>
Date:   Sun Oct 14 10:13:31 2007 -0400

    parisc: Fix infinite loop in /proc/iomem
    
    pcibios_link_hba_resources() could corrupt the resource tree by inserting
    resources in the wrong place.  Fix this by calling pci_claim_resource()
    for PCI-PCI bridges.  Delete pcibios_link_hba_resources as we shouldn't
    need it any more.  Also get rid of lba_claim_dev_resources() and just
    call pci_claim_resource() directly.
    
    Signed-off-by: Matthew Wilcox <willy@linux.intel.com>

diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 563df00..8263d49 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -194,31 +194,6 @@ void __init pcibios_init_bus(struct pci_bus *bus)
 	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bridge_ctl);
 }
 
-
-/* KLUGE: Link the child and parent resources - generic PCI didn't */
-static void
-pcibios_link_hba_resources( struct resource *hba_res, struct resource *r)
-{
-	if (!r->parent) {
-		printk(KERN_EMERG "PCI: resource not parented! [%p-%p]\n",
-				(void*) r->start, (void*) r->end);
-		r->parent = hba_res;
-
-		/* reverse link is harder *sigh*  */
-		if (r->parent->child) {
-			if (r->parent->sibling) {
-				struct resource *next = r->parent->sibling;
-				while (next->sibling)
-					 next = next->sibling;
-				next->sibling = r;
-			} else {
-				r->parent->sibling = r;
-			}
-		} else
-			r->parent->child = r;
-	}
-}
-
 /* called by drivers/pci/setup-bus.c:pci_setup_bridge().  */
 void __devinit pcibios_resource_to_bus(struct pci_dev *dev,
 		struct pci_bus_region *region, struct resource *res)
@@ -245,13 +220,6 @@ void __devinit pcibios_resource_to_bus(struct pci_dev *dev,
 	DBG_RES("pcibios_resource_to_bus(%02x %s [%lx,%lx])\n",
 		bus->number, res->flags & IORESOURCE_IO ? "IO" : "MEM",
 		region->start, region->end);
-
-	/* KLUGE ALERT
-	** if this resource isn't linked to a "parent", then it seems
-	** to be a child of the HBA - lets link it in.
-	*/
-	pcibios_link_hba_resources(&hba->io_space, bus->resource[0]);
-	pcibios_link_hba_resources(&hba->lmmio_space, bus->resource[1]);
 }
 
 void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 5b86ee5..5eace9e 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -557,44 +557,6 @@ lba_bios_init(void)
 #ifdef CONFIG_64BIT
 
 /*
-** Determine if a device is already configured.
-** If so, reserve it resources.
-**
-** Read PCI cfg command register and see if I/O or MMIO is enabled.
-** PAT has to enable the devices it's using.
-**
-** Note: resources are fixed up before we try to claim them.
-*/
-static void
-lba_claim_dev_resources(struct pci_dev *dev)
-{
-	u16 cmd;
-	int i, srch_flags;
-
-	(void) pci_read_config_word(dev, PCI_COMMAND, &cmd);
-
-	srch_flags  = (cmd & PCI_COMMAND_IO) ? IORESOURCE_IO : 0;
-	if (cmd & PCI_COMMAND_MEMORY)
-		srch_flags |= IORESOURCE_MEM;
-
-	if (!srch_flags)
-		return;
-
-	for (i = 0; i <= PCI_ROM_RESOURCE; i++) {
-		if (dev->resource[i].flags & srch_flags) {
-			pci_claim_resource(dev, i);
-			DBG("   claimed %s %d [%lx,%lx]/%lx\n",
-				pci_name(dev), i,
-				dev->resource[i].start,
-				dev->resource[i].end,
-				dev->resource[i].flags
-				);
-		}
-	}
-}
-
-
-/*
  * truncate_pat_collision:  Deal with overlaps or outright collisions
  *			between PAT PDC reported ranges.
  *
@@ -653,7 +615,6 @@ truncate_pat_collision(struct resource *root, struct resource *new)
 }
 
 #else
-#define lba_claim_dev_resources(dev) do { } while (0)
 #define truncate_pat_collision(r,n)  (0)
 #endif
 
@@ -684,8 +645,12 @@ lba_fixup_bus(struct pci_bus *bus)
 	** pci_alloc_primary_bus() mangles this.
 	*/
 	if (bus->self) {
+		int i;
 		/* PCI-PCI Bridge */
 		pci_read_bridge_bases(bus);
+		for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) {
+			pci_claim_resource(bus->self, i);
+		}
 	} else {
 		/* Host-PCI Bridge */
 		int err, i;
@@ -803,6 +768,9 @@ lba_fixup_bus(struct pci_bus *bus)
 				DBG("lba_fixup_bus() WTF? 0x%lx [%lx/%lx] XXX",
 					res->flags, res->start, res->end);
 			}
+			if ((i != PCI_ROM_RESOURCE) ||
+			    (res->flags & IORESOURCE_ROM_ENABLE))
+				pci_claim_resource(dev, i);
 		}
 
 #ifdef FBB_SUPPORT
@@ -814,11 +782,6 @@ lba_fixup_bus(struct pci_bus *bus)
 		bus->bridge_ctl &= ~(status & PCI_STATUS_FAST_BACK);
 #endif
 
-		if (is_pdc_pat()) {
-			/* Claim resources for PDC's devices */
-			lba_claim_dev_resources(dev);
-		}

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Subject: [parisc-linux] Fix pcibios_bus_to_resource etc
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Xref: news.gmane.org gmane.linux.ports.parisc:25453


I don't quite have time to finish this off before I get on a plane, but
it mostly works, so maybe somebody else can finish it off for me.

Basically, I fix pcibios_bus_to_resource for the ioport case and then
use it in lba_fixup_bus.  It should probably be used by Dino too.

Also unconditionally export both pcibios_bus_to_resource and
pcibios_resource_to_bus.  It's a public API, and should always be
available.

I also convert PCI_BUS_ADDR to pcibios_bus_addr to avoid the icky
ifdefs to avoid warnings.

The only problem is that a few resources end up with the wrong parent on
64-bit due to lack of f-extension:

f0100000-f01fffff : PCI Bus #04
  f0100000-f01fffff : PCI Bus #02
  f4900000-f49fffff : PCI Bus #02
  f6000000-f60fffff : PCI Bus #04

These PCI busses are the ones behind PCI-PCI bridges; eg

fffffffff6000000-fffffffff67fffff : PCI03 LMMIO                                 
  fffffffff6000000-fffffffff6001fff : 0000:04:04.1                              

Shouldn't be hard to fix, I'm just out of time.

diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 8263d49..a7eab22 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -194,57 +194,51 @@ void __init pcibios_init_bus(struct pci_bus *bus)
 	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bridge_ctl);
 }
 
-/* called by drivers/pci/setup-bus.c:pci_setup_bridge().  */
-void __devinit pcibios_resource_to_bus(struct pci_dev *dev,
+/*
+ * Convert from global view of resources to bus-local view.  For port
+ * addresses, this means masking off the upper bits.  For mmio addresses,
+ * it can be more complex -- see include/asm/pci.h
+ */
+void pcibios_resource_to_bus(struct pci_dev *dev,
 		struct pci_bus_region *region, struct resource *res)
 {
-	struct pci_bus *bus = dev->bus;
-	struct pci_hba_data *hba = HBA_DATA(bus->bridge->platform_data);
-
 	if (res->flags & IORESOURCE_IO) {
-		/*
-		** I/O space may see busnumbers here. Something
-		** in the form of 0xbbxxxx where bb is the bus num
-		** and xxxx is the I/O port space address.
-		** Remaining address translation are done in the
-		** PCI Host adapter specific code - ie dino_out8.
-		*/
 		region->start = PCI_PORT_ADDR(res->start);
-		region->end   = PCI_PORT_ADDR(res->end);
+		region->end = PCI_PORT_ADDR(res->end);
 	} else if (res->flags & IORESOURCE_MEM) {
-		/* Convert MMIO addr to PCI addr (undo global virtualization) */
-		region->start = PCI_BUS_ADDR(hba, res->start);
-		region->end   = PCI_BUS_ADDR(hba, res->end);
+		struct pci_hba_data *hba =
+			HBA_DATA(dev->bus->bridge->platform_data);
+
+		region->start = pcibios_bus_addr(hba, res->start);
+		region->end = pcibios_bus_addr(hba, res->end);
 	}
 
 	DBG_RES("pcibios_resource_to_bus(%02x %s [%lx,%lx])\n",
-		bus->number, res->flags & IORESOURCE_IO ? "IO" : "MEM",
+		dev->bus->number, res->flags & IORESOURCE_IO ? "IO" : "MEM",
 		region->start, region->end);
 }
+EXPORT_SYMBOL(pcibios_resource_to_bus);
 
+/*
+ * Convert from bus-local view of resources to global view.  For port
+ * addresses, this means adding a bus number in bits 24-17.  For mmio
+ * addresses, it can be more complex -- see include/asm/pci.h
+ */
 void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
 			      struct pci_bus_region *region)
 {
-#ifdef CONFIG_64BIT
-	struct pci_bus *bus = dev->bus;
-	struct pci_hba_data *hba = HBA_DATA(bus->bridge->platform_data);
-#endif
+	struct pci_hba_data *hba = HBA_DATA(dev->bus->bridge->platform_data);
 
-	if (res->flags & IORESOURCE_MEM) {
+	if (res->flags & IORESOURCE_IO) {
+		int portbase = HBA_PORT_BASE(hba->hba_num);
+		res->start = portbase | region->start;
+		res->end = portbase | region->end;
+	} else if (res->flags & IORESOURCE_MEM) {
 		res->start = PCI_HOST_ADDR(hba, region->start);
 		res->end = PCI_HOST_ADDR(hba, region->end);
 	}
-
-	if (res->flags & IORESOURCE_IO) {
-		res->start = region->start;
-		res->end = region->end;
-	}
 }
-
-#ifdef CONFIG_HOTPLUG
-EXPORT_SYMBOL(pcibios_resource_to_bus);
 EXPORT_SYMBOL(pcibios_bus_to_resource);
-#endif
 
 /*
  * pcibios align resources() is called every time generic PCI code
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 5eace9e..d0128b9 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -743,31 +743,16 @@ lba_fixup_bus(struct pci_bus *bus)
 		/* Virtualize Device/Bridge Resources. */
 		for (i = 0; i < PCI_BRIDGE_RESOURCES; i++) {
 			struct resource *res = &dev->resource[i];
+			struct pci_bus_region region;
 
 			/* If resource not allocated - skip it */
-			if (!res->start)
+			if (!res->flags)
 				continue;
 
-			if (res->flags & IORESOURCE_IO) {
-				DBG("lba_fixup_bus() I/O Ports [%lx/%lx] -> ",
-					res->start, res->end);
-				res->start |= lba_portbase;
-				res->end   |= lba_portbase;
-				DBG("[%lx/%lx]\n", res->start, res->end);
-			} else if (res->flags & IORESOURCE_MEM) {
-				/*
-				** Convert PCI (IO_VIEW) addresses to
-				** processor (PA_VIEW) addresses
-				 */
-				DBG("lba_fixup_bus() MMIO [%lx/%lx] -> ",
-					res->start, res->end);
-				res->start = PCI_HOST_ADDR(HBA_DATA(ldev), res->start);
-				res->end   = PCI_HOST_ADDR(HBA_DATA(ldev), res->end);
-				DBG("[%lx/%lx]\n", res->start, res->end);
-			} else {
-				DBG("lba_fixup_bus() WTF? 0x%lx [%lx/%lx] XXX",
-					res->flags, res->start, res->end);
-			}
+			region.start = res->start;
+			region.end = res->end;
+			pcibios_bus_to_resource(dev, res, &region);
+
 			if ((i != PCI_ROM_RESOURCE) ||
 			    (res->flags & IORESOURCE_ROM_ENABLE))
 				pci_claim_resource(dev, i);
diff --git a/include/asm-parisc/pci.h b/include/asm-parisc/pci.h
index 61fbd57..7b5da00 100644
--- a/include/asm-parisc/pci.h
+++ b/include/asm-parisc/pci.h
@@ -100,16 +100,27 @@ static __inline__  int pci_is_lmmio(struct pci_hba_data *hba, unsigned long a)
 **	(1) PA_VIEW - IO_VIEW = lmmio_offset for both LMMIO and ELMMIO
 **	(2) PA_VIEW == IO_VIEW for GMMIO
 */
-#define PCI_BUS_ADDR(hba,a)	(PCI_IS_LMMIO(hba,a)	\
-		?  ((a) - hba->lmmio_space_offset)	/* mangle LMMIO */ \
-		: (a))					/* GMMIO */
+
+static inline unsigned long pcibios_bus_addr(struct pci_hba_data *hba,
+							unsigned long addr)
+{
+	if (PCI_IS_LMMIO(hba, addr))
+		return addr - hba->lmmio_space_offset;
+	return addr;
+}
+
 #define PCI_HOST_ADDR(hba,a)	(((a) & PCI_F_EXTEND) == 0 \
 		? (a) + hba->lmmio_space_offset \
 		: (a))
 
 #else	/* !CONFIG_64BIT */
 
-#define PCI_BUS_ADDR(hba,a)	(a)
+static inline unsigned long pcibios_bus_addr(struct pci_hba_data *hba,
+							unsigned long addr)
+{
+	return addr;
+}
+
 #define PCI_HOST_ADDR(hba,a)	(a)
 #define PCI_F_EXTEND		0UL
 #define PCI_IS_LMMIO(hba,a)	(1)	/* 32-bit doesn't support GMMIO */

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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Xref: news.gmane.org gmane.linux.ports.parisc:25454

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Hello all,

I reach to get some time to attempt to finalize this
<http://lists.parisc-linux.org/pipermail/parisc-linux/2007-January/031129.html>

This first hunk just do some white space cleanup:

Hth,
J.

--------------090708090909020603090108
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 name="wp-cleanup-ccio-dma.c.patch"
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 filename="wp-cleanup-ccio-dma.c.patch"

Index: linux-current/drivers/parisc/ccio-dma.c
===================================================================
--- linux-current.orig/drivers/parisc/ccio-dma.c	2007-10-15 08:04:13.000000000 +0000
+++ linux-current/drivers/parisc/ccio-dma.c	2007-10-15 08:46:02.000000000 +0000
@@ -52,7 +52,7 @@
 #include <asm/hardware.h>       /* for register_module() */
 #include <asm/parisc-device.h>
 
-/* 
+/*
 ** Choose "ccio" since that's what HP-UX calls it.
 ** Make it easier for folks to migrate from one to the other :^)
 */
@@ -102,43 +102,43 @@
 #define DBG_RUN_SG(x...)
 #endif
 
-#define CCIO_INLINE	inline
-#define WRITE_U32(value, addr) __raw_writel(value, addr)
-#define READ_U32(addr) __raw_readl(addr)
-
-#define U2_IOA_RUNWAY 0x580
-#define U2_BC_GSC     0x501
-#define UTURN_IOA_RUNWAY 0x581
-#define UTURN_BC_GSC     0x502
-
-#define IOA_NORMAL_MODE      0x00020080 /* IO_CONTROL to turn on CCIO        */
-#define CMD_TLB_DIRECT_WRITE 35         /* IO_COMMAND for I/O TLB Writes     */
-#define CMD_TLB_PURGE        33         /* IO_COMMAND to Purge I/O TLB entry */
+#define CCIO_INLINE		inline
+#define WRITE_U32(value, addr)	__raw_writel(value, addr)
+#define READ_U32(addr)		__raw_readl(addr)
+
+#define U2_IOA_RUNWAY		0x580
+#define U2_BC_GSC		0x501
+#define UTURN_IOA_RUNWAY	0x581
+#define UTURN_BC_GSC		0x502
+
+#define IOA_NORMAL_MODE		0x00020080	/* IO_CONTROL to turn on CCIO        */
+#define CMD_TLB_DIRECT_WRITE	35		/* IO_COMMAND for I/O TLB Writes     */
+#define CMD_TLB_PURGE		33		/* IO_COMMAND to Purge I/O TLB entry */
 
 struct ioa_registers {
-        /* Runway Supervisory Set */
-        int32_t    unused1[12];
-        uint32_t   io_command;             /* Offset 12 */
-        uint32_t   io_status;              /* Offset 13 */
-        uint32_t   io_control;             /* Offset 14 */
-        int32_t    unused2[1];
-
-        /* Runway Auxiliary Register Set */
-        uint32_t   io_err_resp;            /* Offset  0 */
-        uint32_t   io_err_info;            /* Offset  1 */
-        uint32_t   io_err_req;             /* Offset  2 */
-        uint32_t   io_err_resp_hi;         /* Offset  3 */
-        uint32_t   io_tlb_entry_m;         /* Offset  4 */
-        uint32_t   io_tlb_entry_l;         /* Offset  5 */
-        uint32_t   unused3[1];
-        uint32_t   io_pdir_base;           /* Offset  7 */
-        uint32_t   io_io_low_hv;           /* Offset  8 */
-        uint32_t   io_io_high_hv;          /* Offset  9 */
-        uint32_t   unused4[1];
-        uint32_t   io_chain_id_mask;       /* Offset 11 */
-        uint32_t   unused5[2];
-        uint32_t   io_io_low;              /* Offset 14 */
-        uint32_t   io_io_high;             /* Offset 15 */
+	/* Runway Supervisory Set */
+	int32_t unused1[12];
+	uint32_t	io_command;	/* Offset 12 */
+	uint32_t	io_status;	/* Offset 13 */
+	uint32_t	io_control;	/* Offset 14 */
+	int32_t unused2[1];
+
+	/* Runway Auxiliary Register Set */
+	uint32_t	io_err_resp;	/* Offset  0 */
+	uint32_t	io_err_info;	/* Offset  1 */
+	uint32_t	io_err_req;	/* Offset  2 */
+	uint32_t	io_err_resp_hi;	/* Offset  3 */
+	uint32_t	io_tlb_entry_m;	/* Offset  4 */
+	uint32_t	io_tlb_entry_l;	/* Offset  5 */
+	uint32_t unused3[1];
+	uint32_t	io_pdir_base;	/* Offset  7 */
+	uint32_t	io_io_low_hv;	/* Offset  8 */
+	uint32_t	io_io_high_hv;	/* Offset  9 */
+        uint32_t unused4[1];
+	uint32_t	io_chain_id_mask;/* Offset 11 */
+	uint32_t unused5[2];
+	uint32_t	io_io_low;	/* Offset 14 */
+	uint32_t	io_io_high;	/* Offset 15 */
 };
 
 /*
@@ -146,7 +146,7 @@
 ** -------------
 **
 ** Runway IO_CONTROL Register (+0x38)
-** 
+**
 ** The Runway IO_CONTROL register controls the forwarding of transactions.
 **
 ** | 0  ...  13  |  14 15 | 16 ... 21 | 22 | 23 24 |  25 ... 31 |
@@ -173,7 +173,7 @@
 **
 ** o TLB field affects transactions which are forwarded from GSC+ to Runway.
 **   "Real" mode is the poweron default.
-** 
+**
 **   TLB Mode  Value  Description
 **   Real        0    No TLB translation. Address is directly mapped and the
 **                    virtual address is composed of selected physical bits.
@@ -218,7 +218,7 @@
 ** modify the architectural IO_IO_LOW and IO_IO_HIGH registers following
 ** the PDC initialization.  However, the hardware version dependent IO_IO_LOW
 ** and IO_IO_HIGH registers should not be subsequently altered by the OS.
-** 
+**
 ** Writes to both sets of registers will take effect immediately, bypassing
 ** the queues, which ensures that subsequent Runway transactions are checked
 ** against the updated bounds values. However reads are queued, introducing
@@ -228,40 +228,40 @@
 */
 
 struct ioc {
-	struct ioa_registers __iomem *ioc_regs;  /* I/O MMU base address */
-	u8  *res_map;	                /* resource map, bit == pdir entry */
-	u64 *pdir_base;	                /* physical base address */
-	u32 pdir_size; 			/* bytes, function of IOV Space size */
-	u32 res_hint;	                /* next available IOVP - 
-					   circular search */
-	u32 res_size;		    	/* size of resource map in bytes */
-	spinlock_t res_lock;
+	struct ioa_registers __iomem *ioc_regs;	/* I/O MMU base address */
+	u8		*res_map;		/* resource map, bit == pdir entry */
+	u64		*pdir_base;		/* physical base address */
+	u32		pdir_size; 		/* bytes, function of IOV Space size */
+	u32		res_hint;		/* next available IOVP -
+						   circular search */
+	u32		res_size;		/* size of resource map in bytes */
+	spinlock_t	res_lock;
 
 #ifdef CCIO_SEARCH_TIME
 #define CCIO_SEARCH_SAMPLE 0x100
-	unsigned long avg_search[CCIO_SEARCH_SAMPLE];
-	unsigned long avg_idx;		  /* current index into avg_search */
+	unsigned long	avg_search[CCIO_SEARCH_SAMPLE];
+	unsigned long	avg_idx;		/* current index into avg_search */
 #endif
 #ifdef CCIO_MAP_STATS
-	unsigned long used_pages;
-	unsigned long msingle_calls;
-	unsigned long msingle_pages;
-	unsigned long msg_calls;
-	unsigned long msg_pages;
-	unsigned long usingle_calls;
-	unsigned long usingle_pages;
-	unsigned long usg_calls;
-	unsigned long usg_pages;
+	unsigned long	used_pages;
+	unsigned long	msingle_calls;
+	unsigned long	msingle_pages;
+	unsigned long	msg_calls;
+	unsigned long	msg_pages;
+	unsigned long	usingle_calls;
+	unsigned long	usingle_pages;
+	unsigned long	usg_calls;
+	unsigned long	usg_pages;
 #endif
-	unsigned short cujo20_bug;
+	unsigned short	cujo20_bug;
 
 	/* STUFF We don't need in performance path */
-	u32 chainid_shift; 		/* specify bit location of chain_id */
-	struct ioc *next;		/* Linked list of discovered iocs */
-	const char *name;		/* device name from firmware */
-	unsigned int hw_path;           /* the hardware path this ioc is associatd with */
-	struct pci_dev *fake_pci_dev;   /* the fake pci_dev for non-pci devs */
-	struct resource mmio_region[2]; /* The "routed" MMIO regions */
+	u32		chainid_shift;	/* specify bit location of chain_id */
+	struct ioc	*next;		/* Linked list of discovered iocs */
+	const char	*name;		/* device name from firmware */
+	unsigned int	hw_path;	/* the hardware path this ioc is associatd with */
+	struct pci_dev	*fake_pci_dev;	/* the fake pci_dev for non-pci devs */
+	struct resource	mmio_region[2];	/* The "routed" MMIO regions */
 };
 
 static struct ioc *ioc_list;
@@ -282,17 +282,17 @@
 *   match the I/O TLB replacement policy.
 *
 ***************************************************************/
-#define IOVP_SIZE PAGE_SIZE
-#define IOVP_SHIFT PAGE_SHIFT
-#define IOVP_MASK PAGE_MASK
+#define IOVP_SIZE	PAGE_SIZE
+#define IOVP_SHIFT	PAGE_SHIFT
+#define IOVP_MASK	PAGE_MASK
 
 /* Convert from IOVP to IOVA and vice versa. */
-#define CCIO_IOVA(iovp,offset) ((iovp) | (offset))
-#define CCIO_IOVP(iova) ((iova) & IOVP_MASK)
+#define CCIO_IOVA(iovp,offset)	((iovp) | (offset))
+#define CCIO_IOVP(iova)		((iova) & IOVP_MASK)
 
-#define PDIR_INDEX(iovp)    ((iovp)>>IOVP_SHIFT)
-#define MKIOVP(pdir_idx)    ((long)(pdir_idx) << IOVP_SHIFT)
-#define MKIOVA(iovp,offset) (dma_addr_t)((long)iovp | (long)offset)
+#define PDIR_INDEX(iovp)	((iovp)>>IOVP_SHIFT)
+#define MKIOVP(pdir_idx)	((long)(pdir_idx) << IOVP_SHIFT)
+#define MKIOVA(iovp,offset)	(dma_addr_t)((long)iovp | (long)offset)
 
 /*
 ** Don't worry about the 150% average search length on a miss.
@@ -350,8 +350,8 @@
 	
 	BUG_ON(pages_needed == 0);
 	BUG_ON((pages_needed * IOVP_SIZE) > DMA_CHUNK_SIZE);
-     
-	DBG_RES("%s() size: %d pages_needed %d\n", 
+
+	DBG_RES("%s() size: %d pages_needed %d\n",
 		__FUNCTION__, size, pages_needed);
 
 	/*
@@ -409,7 +409,7 @@
 #ifdef CCIO_MAP_STATS
 	ioc->used_pages += pages_needed;
 #endif
-	/* 
+	/*
 	** return the bit address.
 	*/
 	return res_idx << 3;
@@ -439,7 +439,7 @@
 	BUG_ON((pages_mapped * IOVP_SIZE) > DMA_CHUNK_SIZE);
 	BUG_ON(pages_mapped > BITS_PER_LONG);
 
-	DBG_RES("%s():  res_idx: %d pages_mapped %d\n", 
+	DBG_RES("%s():  res_idx: %d pages_mapped %d\n",
 		__FUNCTION__, res_idx, pages_mapped);
 
 #ifdef CCIO_MAP_STATS
@@ -478,7 +478,7 @@
 #define KERNEL_SPACE 0
 
 /*
-** DMA "Page Type" and Hints 
+** DMA "Page Type" and Hints
 ** o if SAFE_DMA isn't set, mapping is for FAST_DMA. SAFE_DMA should be
 **   set for subcacheline DMA transfers since we don't want to damage the
 **   other part of a cacheline.
@@ -497,7 +497,7 @@
 **   and Invalidation of Prefetch Entries".
 **
 ** FIXME: the default hints need to be per GSC device - not global.
-** 
+**
 ** HP-UX dorks: linux device driver programming model is totally different
 **    than HP-UX's. HP-UX always sets HINT_PREFETCH since it's drivers
 **    do special things to work on non-coherent platforms...linux has to
@@ -553,7 +553,7 @@
  * The virtual index field is filled with the results of the LCI
  * (Load Coherence Index) instruction.  The 8 bits used for the virtual
  * index are bits 12:19 of the value returned by LCI.
- */ 
+ */
 void CCIO_INLINE
 ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
 		   unsigned long hints)
@@ -660,7 +660,7 @@
  *        (We do need to maker I/O PDIR entries invalid regardless).
  *
  * FIXME: Can we change byte_cnt to pages_mapped?
- */ 
+ */
 static CCIO_INLINE void
 ccio_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
 {
@@ -676,7 +676,7 @@
 		char *pdir_ptr = (char *) &(ioc->pdir_base[idx]);
 
 		BUG_ON(idx >= (ioc->pdir_size / sizeof(u64)));
-		pdir_ptr[7] = 0;	/* clear only VALID bit */ 
+		pdir_ptr[7] = 0;	/* clear only VALID bit */
 		/*
 		** FIXME: PCX_W platforms don't need FDC/SYNC. (eg C360)
 		**   PCX-U/U+ do. (eg C200/C240)
@@ -708,7 +708,7 @@
  *
  * This function implements the pci_dma_supported function.
  */
-static int 
+static int
 ccio_dma_supported(struct device *dev, u64 mask)
 {
 	if(dev == NULL) {
@@ -730,7 +730,7 @@
  *
  * This function implements the pci_map_single function.
  */
-static dma_addr_t 
+static dma_addr_t
 ccio_map_single(struct device *dev, void *addr, size_t size,
 		enum dma_data_direction direction)
 {
@@ -798,12 +798,12 @@
  *
  * This function implements the pci_unmap_single function.
  */
-static void 
-ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size, 
+static void
+ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
 		  enum dma_data_direction direction)
 {
 	struct ioc *ioc;
-	unsigned long flags; 
+	unsigned long flags;
 	dma_addr_t offset = iova & ~IOVP_MASK;
 	
 	BUG_ON(!dev);
@@ -836,7 +836,7 @@
  *
  * This function implements the pci_alloc_consistent function.
  */
-static void * 
+static void *
 ccio_alloc_consistent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag)
 {
       void *ret;
@@ -869,8 +869,8 @@
  *
  * This function implements the pci_free_consistent function.
  */
-static void 
-ccio_free_consistent(struct device *dev, size_t size, void *cpu_addr, 
+static void
+ccio_free_consistent(struct device *dev, size_t size, void *cpu_addr,
 		     dma_addr_t dma_handle)
 {
 	ccio_unmap_single(dev, dma_handle, size, 0);
@@ -899,7 +899,7 @@
  * This function implements the pci_map_sg function.
  */
 static int
-ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents, 
+ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	    enum dma_data_direction direction)
 {
 	struct ioc *ioc;
@@ -947,7 +947,7 @@
 	**
 	** map the virtual addresses to the I/O Pdir
 	** o dma_address will contain the pdir index
-	** o dma_len will contain the number of bytes to map 
+	** o dma_len will contain the number of bytes to map
 	** o page/offset contain the virtual address.
 	*/
 	filled = iommu_fill_pdir(ioc, sglist, nents, hint, ccio_io_pdir_entry);
@@ -975,8 +975,8 @@
  *
  * This function implements the pci_unmap_sg function.
  */
-static void 
-ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, 
+static void
+ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	      enum dma_data_direction direction)
 {
 	struct ioc *ioc;
@@ -1016,7 +1016,7 @@
 	.dma_sync_single_for_cpu =	NULL,	/* NOP for U2/Uturn */
 	.dma_sync_single_for_device =	NULL,	/* NOP for U2/Uturn */
 	.dma_sync_sg_for_cpu =		NULL,	/* ditto */
-	.dma_sync_sg_for_device =		NULL,	/* ditto */
+	.dma_sync_sg_for_device =	NULL,	/* ditto */
 };
 
 #ifdef CONFIG_PROC_FS
@@ -1044,16 +1044,16 @@
 				  (int)(ioc->used_pages * 100 / total_pages));
 #endif
 
-		len += seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n", 
+		len += seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n",
 				  ioc->res_size, total_pages);
 
 #ifdef CCIO_SEARCH_TIME
 		min = max = ioc->avg_search[0];
 		for(j = 0; j < CCIO_SEARCH_SAMPLE; ++j) {
 			avg += ioc->avg_search[j];
-			if(ioc->avg_search[j] > max) 
+			if(ioc->avg_search[j] > max)
 				max = ioc->avg_search[j];
-			if(ioc->avg_search[j] < min) 
+			if(ioc->avg_search[j] < min)
 				min = ioc->avg_search[j];
 		}
 		avg /= CCIO_SEARCH_SAMPLE;
@@ -1070,7 +1070,7 @@
 		max = ioc->usingle_pages - ioc->usg_pages;
 		len += seq_printf(m, "pci_unmap_single: %8ld calls  %8ld pages (avg %d/1000)\n",
 				  min, max, (int)((max * 1000)/min));
- 
+
 		len += seq_printf(m, "pci_map_sg()    : %8ld calls  %8ld pages (avg %d/1000)\n",
 				  ioc->msg_calls, ioc->msg_pages,
 				  (int)((ioc->msg_pages * 1000)/ioc->msg_calls));
@@ -1310,7 +1310,7 @@
 			iova_space_size>>20,
 			iov_order + PAGE_SHIFT);
 
-	ioc->pdir_base = (u64 *)__get_free_pages(GFP_KERNEL, 
+	ioc->pdir_base = (u64 *)__get_free_pages(GFP_KERNEL,
 						 get_order(ioc->pdir_size));
 	if(NULL == ioc->pdir_base) {
 		panic("%s() could not allocate I/O Page Table\n", __FUNCTION__);
@@ -1324,7 +1324,7 @@
  	ioc->res_size = (ioc->pdir_size / sizeof(u64)) >> 3;
 	DBG_INIT("%s() res_size 0x%x\n", __FUNCTION__, ioc->res_size);
 	
-	ioc->res_map = (u8 *)__get_free_pages(GFP_KERNEL, 
+	ioc->res_map = (u8 *)__get_free_pages(GFP_KERNEL,
 					      get_order(ioc->res_size));
 	if(NULL == ioc->res_map) {
 		panic("%s() could not allocate resource map\n", __FUNCTION__);
@@ -1347,10 +1347,10 @@
 	/*
 	** Initialize IOA hardware
 	*/
-	WRITE_U32(CCIO_CHAINID_MASK << ioc->chainid_shift, 
+	WRITE_U32(CCIO_CHAINID_MASK << ioc->chainid_shift,
 		  &ioc->ioc_regs->io_chain_id_mask);
 
-	WRITE_U32(virt_to_phys(ioc->pdir_base), 
+	WRITE_U32(virt_to_phys(ioc->pdir_base),
 		  &ioc->ioc_regs->io_pdir_base);
 
 	/*
@@ -1398,7 +1398,7 @@
 	 */
 	result = insert_resource(&iomem_resource, res);
 	if (result < 0) {
-		printk(KERN_ERR "%s() failed to claim CCIO bus address space (%08lx,%08lx)\n", 
+		printk(KERN_ERR "%s() failed to claim CCIO bus address space (%08lx,%08lx)\n",
 	 		__FUNCTION__, res->start, res->end);
 	}
 }

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Subject: [parisc-linux] [patch 2/2] backport of sba sg list management to
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Xref: news.gmane.org gmane.linux.ports.parisc:25455

This is a multi-part message in MIME format.
--------------060309050404030803040800
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

And here is the main hunk:

This consist of 'backporting' to ccio of the most of Grant's work on sg list
management of sba-iommu.

According to some stress test on d380 it makes ncr driver more stable; improve
network perf on my d380 (from 110 to 430 kb/s);
(would allow in a next step merge some hunk of sba code in iommu-helper.h)

Tia,
J.

--------------060309050404030803040800
Content-Type: text/x-patch;
 name="bp-sba_sg-2-ccio-dma.c.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="bp-sba_sg-2-ccio-dma.c.patch"

Index: linux-current/drivers/parisc/ccio-dma.c
===================================================================
--- linux-current.orig/drivers/parisc/ccio-dma.c	2007-10-15 10:48:27.000000000 +0000
+++ linux-current/drivers/parisc/ccio-dma.c	2007-10-15 14:15:03.000000000 +0000
@@ -51,6 +51,7 @@
 #include <asm/io.h>
 #include <asm/hardware.h>       /* for register_module() */
 #include <asm/parisc-device.h>
+#include <asm/delay.h>
 
 /*
 ** Choose "ccio" since that's what HP-UX calls it.
@@ -102,7 +103,11 @@
 #define DBG_RUN_SG(x...)
 #endif
 
-#define CCIO_INLINE		inline
+#undef DMA_CHUNK_SIZE
+#define DMA_CHUNK_SIZE		(BITS_PER_LONG * IOVP_SIZE)
+#define DELAYED_RESOURCE_CNT	16
+
+#define CCIO_INLINE		__inline__
 #define WRITE_U32(value, addr)	__raw_writel(value, addr)
 #define READ_U32(addr)		__raw_readl(addr)
 
@@ -134,7 +139,7 @@
 	uint32_t	io_pdir_base;	/* Offset  7 */
 	uint32_t	io_io_low_hv;	/* Offset  8 */
 	uint32_t	io_io_high_hv;	/* Offset  9 */
-        uint32_t unused4[1];
+	uint32_t unused4[1];
 	uint32_t	io_chain_id_mask;/* Offset 11 */
 	uint32_t unused5[2];
 	uint32_t	io_io_low;	/* Offset 14 */
@@ -227,16 +232,28 @@
 ** returns before issuing subsequent writes.
 */
 
+typedef unsigned long	address_t;
+
 struct ioc {
 	struct ioa_registers __iomem *ioc_regs;	/* I/O MMU base address */
 	u8		*res_map;		/* resource map, bit == pdir entry */
 	u64		*pdir_base;		/* physical base address */
 	u32		pdir_size; 		/* bytes, function of IOV Space size */
-	u32		res_hint;		/* next available IOVP -
+	address_t	*res_hint;		/* next available IOVP -
 						   circular search */
-	u32		res_size;		/* size of resource map in bytes */
 	spinlock_t	res_lock;
 
+	uint32_t	res_bitshift;		/* from the LEFT! */
+	u32		res_size;		/* size of resource map in bytes */
+
+#if DELAYED_RESOURCE_CNT > 0
+	int             saved_cnt;
+	struct ioc_dma_pair {
+		dma_addr_t      iova;
+		size_t          size;
+	} saved[DELAYED_RESOURCE_CNT];
+#endif
+
 #ifdef CCIO_SEARCH_TIME
 #define CCIO_SEARCH_SAMPLE 0x100
 	unsigned long	avg_search[CCIO_SEARCH_SAMPLE];
@@ -259,7 +276,7 @@
 	u32		chainid_shift;	/* specify bit location of chain_id */
 	struct ioc	*next;		/* Linked list of discovered iocs */
 	const char	*name;		/* device name from firmware */
-	unsigned int	hw_path;	/* the hardware path this ioc is associatd with */
+	uint32_t	hw_path;	/* the hardware path this ioc is associatd with */
 	struct pci_dev	*fake_pci_dev;	/* the fake pci_dev for non-pci devs */
 	struct resource	mmio_region[2];	/* The "routed" MMIO regions */
 };
@@ -290,45 +307,115 @@
 #define CCIO_IOVA(iovp,offset)	((iovp) | (offset))
 #define CCIO_IOVP(iova)		((iova) & IOVP_MASK)
 
+#define PDIR_ENTRY_SIZE		sizeof(u64)
 #define PDIR_INDEX(iovp)	((iovp)>>IOVP_SHIFT)
+
+#define RESMAP_MASK(n)		(~0UL << (BITS_PER_LONG - (n)))
+#define RESMAP_IDX_MASK		(sizeof(unsigned long) - 1)
+
+/**
+ * For most cases the normal get_order is sufficient, however it limits us
+ * to PAGE_SIZE being the minimum mapping alignment and TC flush granularity.
+ * It only incurs about 1 clock cycle to use this one with the static variable
+ * and makes the code more intuitive.
+ */
+static CCIO_INLINE int
+get_iovp_order(unsigned long size)
+{
+	int order;
+
+	size = (size - 1) >> (IOVP_SHIFT - 1);
+	order = -1;
+	do {
+		size >>= 1;
+		order++;
+	} while (size);
+	return order;
+}
+
 #define MKIOVP(pdir_idx)	((long)(pdir_idx) << IOVP_SHIFT)
-#define MKIOVA(iovp,offset)	(dma_addr_t)((long)iovp | (long)offset)
+#define MKIOVA(iovp, offset)	(dma_addr_t)((long)iovp | (long)offset)
+#define ROUNDUP(x, y)		((x + ((y)-1)) & ~((y)-1))
 
-/*
-** Don't worry about the 150% average search length on a miss.
-** If the search wraps around, and passes the res_hint, it will
-** cause the kernel to panic anyhow.
-*/
-#define CCIO_SEARCH_LOOP(ioc, res_idx, mask, size)  \
-       for(; res_ptr < res_end; ++res_ptr) { \
-               if(0 == (*res_ptr & mask)) { \
-                       *res_ptr |= mask; \
-                       res_idx = (unsigned int)((unsigned long)res_ptr - (unsigned long)ioc->res_map); \
-                       ioc->res_hint = res_idx + (size >> 3); \
-                       goto resource_found; \
-               } \
-       }
-
-#define CCIO_FIND_FREE_MAPPING(ioa, res_idx, mask, size) \
-       u##size *res_ptr = (u##size *)&((ioc)->res_map[ioa->res_hint & ~((size >> 3) - 1)]); \
-       u##size *res_end = (u##size *)&(ioc)->res_map[ioa->res_size]; \
-       CCIO_SEARCH_LOOP(ioc, res_idx, mask, size); \
-       res_ptr = (u##size *)&(ioc)->res_map[0]; \
-       CCIO_SEARCH_LOOP(ioa, res_idx, mask, size);
+/**
+ * ccio_search_bitmap - find free space in IO PDIR resource bitmap
+ * @ioc: IO MMU structure which owns the pdir we are interested in.
+ * @pages_wanted: number of entries we need.
+ *
+ * Find consecutive free bits in resource bitmap.
+ * Each bit represents one entry in the IO Pdir.
+ * Cool perf optimization: search for log2(size) bits at a time.
+ */
+static CCIO_INLINE address_t
+ccio_search_bitmap(struct ioc *ioc, unsigned long pages_wanted)
+{
+	address_t *res_ptr = ioc->res_hint;
+	address_t *res_end = (unsigned long *) &(ioc->res_map[ioc->res_size]);
+	address_t pide = ~0UL;
+
+	if (pages_wanted > (BITS_PER_LONG/2)) {
+		/* Search word at a time - no mask needed */
+		for(; res_ptr < res_end; ++res_ptr) {
+			if (*res_ptr == 0) {
+				*res_ptr = RESMAP_MASK(pages_wanted);
+				pide = ((address_t)res_ptr - (address_t)ioc->res_map);
+				pide <<= 3;     /* convert to bit address */
+				break;
+			}
+		}
+		/* point to the next word on next pass */
+		res_ptr++;
+		ioc->res_bitshift = 0;
+	} else {
+		/*
+		** Search the resource bit map on well-aligned values.
+		** "o" is the alignment.
+		** We need the alignment to invalidate I/O TLB using
+		** xxx HW features in the unmap path.
+		*/
+		unsigned long o = 1 << get_iovp_order(pages_wanted << IOVP_SHIFT);
+		uint bitshiftcnt = ROUNDUP(ioc->res_bitshift, o);
+		unsigned long mask;
 
-/*
-** Find available bit in this ioa's resource map.
-** Use a "circular" search:
-**   o Most IOVA's are "temporary" - avg search time should be small.
-** o keep a history of what happened for debugging
-** o KISS.
-**
-** Perf optimizations:
-** o search for log2(size) bits at a time.
-** o search for available resource bits using byte/word/whatever.
-** o use different search for "large" (eg > 4 pages) or "very large"
-**   (eg > 16 pages) mappings.
-*/
+		if (bitshiftcnt >= BITS_PER_LONG) {
+			bitshiftcnt = 0;
+			res_ptr++;
+		}
+		mask = RESMAP_MASK(pages_wanted) >> bitshiftcnt;
+
+		DBG_RES("%s() o %ld %p", __FUNCTION__, o, res_ptr);
+		while(res_ptr < res_end)
+		{
+			DBG_RES("    %p %lx %lx\n", res_ptr, mask, *res_ptr);
+			WARN_ON(mask == 0);
+			if(((*res_ptr) & mask) == 0) {
+				*res_ptr |= mask;     /* mark resources busy! */
+				pide = ((address_t)res_ptr - (address_t)ioc->res_map);
+				pide <<= 3;     /* convert to bit address */
+				pide += bitshiftcnt;
+				break;
+			}
+			mask >>= o;
+			bitshiftcnt += o;
+			if (mask == 0) {
+				mask = RESMAP_MASK(pages_wanted);
+				bitshiftcnt=0;
+				res_ptr++;
+			}
+		}
+		/* look in the same word on the next pass */
+		ioc->res_bitshift = bitshiftcnt + pages_wanted;
+	}
+
+	/* wrapped ? */
+	if (res_end <= res_ptr) {
+		ioc->res_hint = (address_t *) ioc->res_map;
+		ioc->res_bitshift = 0;
+	} else {
+		ioc->res_hint = res_ptr;
+	}
+	return (pide);
+}
 
 /**
  * ccio_alloc_range - Allocate pages in the ioc's resource map.
@@ -347,7 +434,9 @@
 #ifdef CCIO_SEARCH_TIME
 	unsigned long cr_start = mfctl(16);
 #endif
-	
+
+	unsigned long	pide;
+
 	BUG_ON(pages_needed == 0);
 	BUG_ON((pages_needed * IOVP_SIZE) > DMA_CHUNK_SIZE);
 
@@ -359,44 +448,19 @@
 	** ggg sacrifices another 710 to the computer gods.
 	*/
 
-	if (pages_needed <= 8) {
-		/*
-		 * LAN traffic will not thrash the TLB IFF the same NIC
-		 * uses 8 adjacent pages to map seperate payload data.
-		 * ie the same byte in the resource bit map.
-		 */
-#if 0
-		/* FIXME: bit search should shift it's way through
-		 * an unsigned long - not byte at a time. As it is now,
-		 * we effectively allocate this byte to this mapping.
-		 */
-		unsigned long mask = ~(~0UL >> pages_needed);
-		CCIO_FIND_FREE_MAPPING(ioc, res_idx, mask, 8);
-#else
-		CCIO_FIND_FREE_MAPPING(ioc, res_idx, 0xff, 8);
-#endif
-	} else if (pages_needed <= 16) {
-		CCIO_FIND_FREE_MAPPING(ioc, res_idx, 0xffff, 16);
-	} else if (pages_needed <= 32) {
-		CCIO_FIND_FREE_MAPPING(ioc, res_idx, ~(unsigned int)0, 32);
-#ifdef __LP64__
-	} else if (pages_needed <= 64) {
-		CCIO_FIND_FREE_MAPPING(ioc, res_idx, ~0UL, 64);
-#endif
-	} else {
-		panic("%s: %s() Too many pages to map. pages_needed: %u\n",
-		       __FILE__,  __FUNCTION__, pages_needed);
+	pide = ccio_search_bitmap(ioc, pages_needed);
+	if (pide >= (ioc->res_size << 3)) {
+		pide = ccio_search_bitmap(ioc, pages_needed);
+		if (pide >= (ioc->res_size << 3))
+			panic("%s: %s() I/O MMU is out of mapping resources.\n", __FILE__,
+				__FUNCTION__);
 	}
 
-	panic("%s: %s() I/O MMU is out of mapping resources.\n", __FILE__,
-	      __FUNCTION__);
-	
-resource_found:
-	
 	DBG_RES("%s() res_idx %d res_hint: %d\n",
 		__FUNCTION__, res_idx, ioc->res_hint);
 
 #ifdef CCIO_SEARCH_TIME
+	udelay(100);
 	{
 		unsigned long cr_end = mfctl(16);
 		unsigned long tmp = cr_end - cr_start;
@@ -412,14 +476,9 @@
 	/*
 	** return the bit address.
 	*/
-	return res_idx << 3;
+	return (pide);
 }
 
-#define CCIO_FREE_MAPPINGS(ioc, res_idx, mask, size) \
-        u##size *res_ptr = (u##size *)&((ioc)->res_map[res_idx]); \
-        BUG_ON((*res_ptr & mask) != mask); \
-        *res_ptr &= ~(mask);
-
 /**
  * ccio_free_range - Free pages from the ioc's resource map.
  * @ioc: The I/O Controller.
@@ -430,42 +489,33 @@
  * This function frees the resouces allocated for the iova.
  */
 static void
-ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped)
+ccio_free_range(struct ioc *ioc, dma_addr_t iova, size_t size)
 {
 	unsigned long iovp = CCIO_IOVP(iova);
-	unsigned int res_idx = PDIR_INDEX(iovp) >> 3;
-
-	BUG_ON(pages_mapped == 0);
-	BUG_ON((pages_mapped * IOVP_SIZE) > DMA_CHUNK_SIZE);
-	BUG_ON(pages_mapped > BITS_PER_LONG);
 
-	DBG_RES("%s():  res_idx: %d pages_mapped %d\n",
-		__FUNCTION__, res_idx, pages_mapped);
+	unsigned int pide = PDIR_INDEX(iovp);
+	unsigned int ridx = pide >> 3;
+	unsigned long *res_ptr = (unsigned long *) &((ioc)->res_map[ridx & ~RESMAP_IDX_MASK]);
+
+	/* was: unsigned int pages_mapped = size >> IOVP_SHIFT; */
+	int bits_not_wanted = size >> IOVP_SHIFT;
+
+	/* 3-bits "bit" address plus 2 (or 3) bits for "byte" == bit in word */
+	unsigned long m = RESMAP_MASK(bits_not_wanted) >> (pide & (BITS_PER_LONG - 1));
+
+	BUG_ON(size == 0);
+	BUG_ON(size > DMA_CHUNK_SIZE);
+	BUG_ON(bits_not_wanted > BITS_PER_LONG);
+
+	DBG_RES("%s( ,%x,%x) %x/%lx %x %p %lx\n",
+		__FUNCTION__, (uint) iova, size,
+		bits_not_wanted, m, pide, res_ptr, *res_ptr);
 
 #ifdef CCIO_MAP_STATS
-	ioc->used_pages -= pages_mapped;
+	ioc->used_pages -= bits_not_wanted;
 #endif
 
-	if(pages_mapped <= 8) {
-#if 0
-		/* see matching comments in alloc_range */
-		unsigned long mask = ~(~0UL >> pages_mapped);
-		CCIO_FREE_MAPPINGS(ioc, res_idx, mask, 8);
-#else
-		CCIO_FREE_MAPPINGS(ioc, res_idx, 0xff, 8);
-#endif
-	} else if(pages_mapped <= 16) {
-		CCIO_FREE_MAPPINGS(ioc, res_idx, 0xffff, 16);
-	} else if(pages_mapped <= 32) {
-		CCIO_FREE_MAPPINGS(ioc, res_idx, ~(unsigned int)0, 32);
-#ifdef __LP64__
-	} else if(pages_mapped <= 64) {
-		CCIO_FREE_MAPPINGS(ioc, res_idx, ~0UL, 64);
-#endif
-	} else {
-		panic("%s:%s() Too many pages to unmap.\n", __FILE__,
-		      __FUNCTION__);
-	}
+	*res_ptr &= ~m;
 }
 
 /****************************************************************
@@ -664,32 +714,45 @@
 static CCIO_INLINE void
 ccio_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
 {
-	u32 iovp = (u32)CCIO_IOVP(iova);
+	uint32_t iovp = (uint32_t)CCIO_IOVP(iova);
+	u64 *pdir_ptr = &ioc->pdir_base[PDIR_INDEX(iovp)];
 	size_t saved_byte_cnt;
 
 	/* round up to nearest page size */
 	saved_byte_cnt = byte_cnt = ALIGN(byte_cnt, IOVP_SIZE);
 
-	while(byte_cnt > 0) {
-		/* invalidate one page at a time */
-		unsigned int idx = PDIR_INDEX(iovp);
-		char *pdir_ptr = (char *) &(ioc->pdir_base[idx]);
+	if (byte_cnt > IOVP_SIZE)
+	{
+		/* set "size" field for PCOM */
+		iovp |= get_iovp_order(byte_cnt) + IOVP_SHIFT;
 
-		BUG_ON(idx >= (ioc->pdir_size / sizeof(u64)));
-		pdir_ptr[7] = 0;	/* clear only VALID bit */
-		/*
-		** FIXME: PCX_W platforms don't need FDC/SYNC. (eg C360)
-		**   PCX-U/U+ do. (eg C200/C240)
-		** See PDC_MODEL/option 0/SW_CAP for "Non-coherent IO-PDIR bit".
-		**
-		** Hopefully someone figures out how to patch (NOP) the
-		** FDC/SYNC out at boot time.
-		*/
-		asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
+		do {
+			/* clear I/O Pdir entry "valid" bit first */
+			((unsigned char *) pdir_ptr)[7] = 0;
+			/*
+			** FIXME: PCX_W platforms don't need FDC/SYNC. (eg C360)
+			**   PCX-U/U+ do. (eg C200/C240)
+			** See PDC_MODEL/option 0/SW_CAP for "Non-coherent IO-PDIR bit".
+			**
+			** Hopefully someone figures out how to patch (NOP) the
+			** FDC/SYNC out at boot time.
+			*/
+			asm volatile("fdc %%r0(%0)" : : "r" (pdir_ptr[7]));
+
+			pdir_ptr++;
+			byte_cnt -= IOVP_SIZE;
+		} while (byte_cnt > IOVP_SIZE);
+	} else
+		iovp |= IOVP_SHIFT;     /* set "size" field for PCOM */
 
-		iovp     += IOVP_SIZE;
-		byte_cnt -= IOVP_SIZE;
-	}
+	/*
+	** clear I/O PDIR entry "valid" bit.
+	** We have to R/M/W the cacheline regardless how much of the
+	** pdir entry that we clobber.
+	** The rest of the entry would be useful for debugging if we
+	** could dump core on HPMC.
+	*/
+	((unsigned char *) pdir_ptr)[7] = 0;
 
 	asm volatile("sync");
 	ccio_clear_io_tlb(ioc, CCIO_IOVP(iova), saved_byte_cnt);
@@ -711,7 +774,7 @@
 static int
 ccio_dma_supported(struct device *dev, u64 mask)
 {
-	if(dev == NULL) {
+	if(!dev) {
 		printk(KERN_ERR MODULE_NAME ": EISA/ISA/et al not supported\n");
 		BUG();
 		return 0;
@@ -783,6 +846,9 @@
 		size -= IOVP_SIZE;
 	}
 
+	/* force FDC ops in io_pdir_entry() to be visible to IOMMU */
+	asm volatile("sync" :: );
+
 	spin_unlock_irqrestore(&ioc->res_lock, flags);
 
 	/* form complete address */
@@ -803,6 +869,9 @@
 		  enum dma_data_direction direction)
 {
 	struct ioc *ioc;
+#if DELAYED_RESOURCE_CNT > 0
+	struct ioc_dma_pair *d;
+#endif
 	unsigned long flags;
 	dma_addr_t offset = iova & ~IOVP_MASK;
 	
@@ -824,7 +893,30 @@
 #endif
 
 	ccio_mark_invalid(ioc, iova, size);
-	ccio_free_range(ioc, iova, (size >> IOVP_SHIFT));
+#if DELAYED_RESOURCE_CNT > 0
+	/* Delaying when we re-use a IO Pdir entry reduces the number
+	 * of MMIO reads needed to flush writes to the PCOM register.
+	 */
+	d = &(ioc->saved[ioc->saved_cnt]);
+	d->iova = iova;
+	d->size = size;
+	if (++(ioc->saved_cnt) >= DELAYED_RESOURCE_CNT) {
+		int cnt = ioc->saved_cnt;
+		while (cnt--) {
+			ccio_free_range(ioc, d->iova, d->size);
+			d--;
+		}
+		ioc->saved_cnt = 0;
+	}
+#else /* DELAYED_RESOURCE_CNT == 0 */
+
+	ccio_free_range(ioc, iova, size);
+
+	/* force fdc's to be visible now */
+	asm volatile("sync" :: );
+
+#endif /* DELAYED_RESOURCE_CNT == 0 */
+
 	spin_unlock_irqrestore(&ioc->res_lock, flags);
 }
 
@@ -952,6 +1044,9 @@
 	*/
 	filled = iommu_fill_pdir(ioc, sglist, nents, hint, ccio_io_pdir_entry);
 
+	/* force FDC ops in io_pdir_entry() to be visible to IOMMU */
+	asm volatile("sync" :: );
+
 	spin_unlock_irqrestore(&ioc->res_lock, flags);
 
 	BUG_ON(coalesced != filled);
@@ -993,11 +1088,12 @@
 
 	while(sg_dma_len(sglist) && nents--) {
 
-#ifdef CCIO_MAP_STATS
-		ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
-#endif
 		ccio_unmap_single(dev, sg_dma_address(sglist),
 				  sg_dma_len(sglist), direction);
+#ifdef CCIO_MAP_STATS
+		ioc->usg_pages += sg_dma_len(sglist) >> IOVP_SHIFT;
+		ioc->usingle_calls--;   /* kluge since call is unmap_sg() */
+#endif
 		++sglist;
 	}
 
@@ -1025,16 +1121,12 @@
 	int len = 0;
 	struct ioc *ioc = ioc_list;
 
-	while (ioc != NULL) {
+	while (ioc) {
 		unsigned int total_pages = ioc->res_size << 3;
-		unsigned long avg = 0, min, max;
-		int j;
 
-		len += seq_printf(m, "%s\n", ioc->name);
-		
-		len += seq_printf(m, "Cujo 2.0 bug    : %s\n",
-				  (ioc->cujo20_bug ? "yes" : "no"));
-		
+		len += seq_printf(m, "%s%s\n", ioc->name,
+			(ioc->cujo20_bug ? " (Cujo 2.0 bug)" : ""));
+
 		len += seq_printf(m, "IO PDIR size    : %d bytes (%d entries)\n",
 			       total_pages * 8, total_pages);
 
@@ -1048,6 +1140,8 @@
 				  ioc->res_size, total_pages);
 
 #ifdef CCIO_SEARCH_TIME
+		unsigned long avg = 0, min, max;
+		int j;
 		min = max = ioc->avg_search[0];
 		for(j = 0; j < CCIO_SEARCH_SAMPLE; ++j) {
 			avg += ioc->avg_search[j];
@@ -1104,7 +1198,7 @@
 	int len = 0;
 	struct ioc *ioc = ioc_list;
 
-	while (ioc != NULL) {
+	while (ioc) {
 		u32 *res_ptr = (u32 *)ioc->res_map;
 		int j;
 
@@ -1252,9 +1346,12 @@
 static void
 ccio_ioc_init(struct ioc *ioc)
 {
-	int i;
-	unsigned int iov_order;
-	u32 iova_space_size;
+	int		i;
+	uint32_t	iov_order,
+			num_iommu_pages,
+			iova_space_size;
+
+	uint32_t	IO_ChainIdMask;
 
 	/*
 	** Determine IOVA Space size from memory size.
@@ -1267,16 +1364,15 @@
 	** Hot-Plug/Removal of PCI cards. (aka PCI OLARD).
 	*/
 
-	iova_space_size = (u32) (num_physpages / count_parisc_driver(&ccio_driver));
+	unsigned long phys_mem = num_physpages << PAGE_SHIFT;
+	iova_space_size = (u_int32_t) (phys_mem  / count_parisc_driver(&ccio_driver));
 
 	/* limit IOVA space size to 1MB-1GB */
 
-	if (iova_space_size < (1 << (20 - PAGE_SHIFT))) {
-		iova_space_size =  1 << (20 - PAGE_SHIFT);
-#ifdef __LP64__
-	} else if (iova_space_size > (1 << (30 - PAGE_SHIFT))) {
-		iova_space_size =  1 << (30 - PAGE_SHIFT);
-#endif
+	if (iova_space_size < (1 << 20)) {
+		iova_space_size =  1 << 20;
+	} else if (iova_space_size > (1 << 30)) {
+		iova_space_size =  1 << 30;
 	}
 
 	/*
@@ -1292,27 +1388,27 @@
 	**   this is the case under linux."
 	*/
 
-	iov_order = get_order(iova_space_size << PAGE_SHIFT);
+	iov_order = get_iovp_order(iova_space_size);
 
-	/* iova_space_size is now bytes, not pages */
-	iova_space_size = 1 << (iov_order + PAGE_SHIFT);
+	iova_space_size = 1 << (iov_order + IOVP_SHIFT);
 
-	ioc->pdir_size = (iova_space_size / IOVP_SIZE) * sizeof(u64);
+	num_iommu_pages = iova_space_size >> IOVP_SHIFT;
+	ioc->pdir_size = num_iommu_pages * PDIR_ENTRY_SIZE;
+
+	DBG_INIT("%s() hpa 0x%p mem %luMb IOV %uMb (%d bits)\n",
+			__FUNCTION__, ioc->ioc_regs,
+			phys_mem >> 20,
+			iova_space_size >> 20,
+			iov_order + IOVP_SHIFT);
 
 	BUG_ON(ioc->pdir_size > 8 * 1024 * 1024);   /* max pdir size <= 8MB */
 
 	/* Verify it's a power of two */
 	BUG_ON((1 << get_order(ioc->pdir_size)) != (ioc->pdir_size >> PAGE_SHIFT));
 
-	DBG_INIT("%s() hpa 0x%p mem %luMB IOV %dMB (%d bits)\n",
-			__FUNCTION__, ioc->ioc_regs,
-			(unsigned long) num_physpages >> (20 - PAGE_SHIFT),
-			iova_space_size>>20,
-			iov_order + PAGE_SHIFT);
-
 	ioc->pdir_base = (u64 *)__get_free_pages(GFP_KERNEL,
 						 get_order(ioc->pdir_size));
-	if(NULL == ioc->pdir_base) {
+	if(!(ioc->pdir_base)) {
 		panic("%s() could not allocate I/O Page Table\n", __FUNCTION__);
 	}
 	memset(ioc->pdir_base, 0, ioc->pdir_size);
@@ -1321,27 +1417,31 @@
 	DBG_INIT(" base %p\n", ioc->pdir_base);
 
 	/* resource map size dictated by pdir_size */
- 	ioc->res_size = (ioc->pdir_size / sizeof(u64)) >> 3;
+ 	ioc->res_size = num_iommu_pages >> 3;
 	DBG_INIT("%s() res_size 0x%x\n", __FUNCTION__, ioc->res_size);
 	
 	ioc->res_map = (u8 *)__get_free_pages(GFP_KERNEL,
 					      get_order(ioc->res_size));
-	if(NULL == ioc->res_map) {
+	if(!(ioc->res_map)) {
 		panic("%s() could not allocate resource map\n", __FUNCTION__);
 	}
 	memset(ioc->res_map, 0, ioc->res_size);
 
-	/* Initialize the res_hint to 16 */
-	ioc->res_hint = 16;
+	/* next available IOVP - circular search */
+	ioc->res_hint = (unsigned long *)
+		&(ioc->res_map[L1_CACHE_BYTES]);
 
 	/* Initialize the spinlock */
 	spin_lock_init(&ioc->res_lock);
 
+	IO_ChainIdMask = READ_U32(&ioc->ioc_regs->io_chain_id_mask);
+	DBG_INIT(" Default io_chain_id_mask 0x%x\n", IO_ChainIdMask);
+
 	/*
 	** Chainid is the upper most bits of an IOVP used to determine
 	** which TLB entry an IOVP will use.
 	*/
-	ioc->chainid_shift = get_order(iova_space_size) + PAGE_SHIFT - CCIO_CHAINID_SHIFT;
+	ioc->chainid_shift = iov_order + IOVP_SHIFT - CCIO_CHAINID_SHIFT;
 	DBG_INIT(" chainid_shift 0x%x\n", ioc->chainid_shift);
 
 	/*
@@ -1485,15 +1585,15 @@
 		return 0;
 
 	if (!expand_ioc_area(parent, size, min, max, align)) {
-		__raw_writel(((parent->start)>>16) | 0xffff0000,
+		WRITE_U32(((parent->start)>>16) | 0xffff0000,
 			     &ioc->ioc_regs->io_io_low);
-		__raw_writel(((parent->end)>>16) | 0xffff0000,
+		WRITE_U32(((parent->end)>>16) | 0xffff0000,
 			     &ioc->ioc_regs->io_io_high);
 	} else if (!expand_ioc_area(parent + 1, size, min, max, align)) {
 		parent++;
-		__raw_writel(((parent->start)>>16) | 0xffff0000,
+		WRITE_U32(((parent->start)>>16) | 0xffff0000,
 			     &ioc->ioc_regs->io_io_low_hv);
-		__raw_writel(((parent->end)>>16) | 0xffff0000,
+		WRITE_U32(((parent->end)>>16) | 0xffff0000,
 			     &ioc->ioc_regs->io_io_high_hv);
 	} else {
 		return -EBUSY;
@@ -1543,8 +1643,8 @@
 	struct ioc *ioc, **ioc_p = &ioc_list;
 	struct proc_dir_entry *info_entry, *bitmap_entry;
 	
-	ioc = kzalloc(sizeof(struct ioc), GFP_KERNEL);
-	if (ioc == NULL) {
+	ioc = kzalloc(sizeof(*ioc), GFP_KERNEL);
+	if (!ioc) {
 		printk(KERN_ERR MODULE_NAME ": memory allocation failure\n");
 		return 1;
 	}
@@ -1566,7 +1666,7 @@
 	dev->dev.platform_data = kzalloc(sizeof(struct pci_hba_data), GFP_KERNEL);
 
 	/* if this fails, no I/O cards will work, so may as well bug */
-	BUG_ON(dev->dev.platform_data == NULL);
+	BUG_ON(!(dev->dev.platform_data));
 	HBA_DATA(dev->dev.platform_data)->iommu = ioc;
 	
 	if (ioc_count == 0) {

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Subject: Re: [parisc-linux] [patch 2/2] backport of sba sg list management
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Xref: news.gmane.org gmane.linux.ports.parisc:25456

On Tue, Oct 16, 2007 at 04:34:08PM +0000, Joel Soete wrote:
> And here is the main hunk:
> 
> This consist of 'backporting' to ccio of the most of Grant's work on sg list
> management of sba-iommu.
> 
> According to some stress test on d380 it makes ncr driver more stable; 
> improve
> network perf on my d380 (from 110 to 430 kb/s);
> (would allow in a next step merge some hunk of sba code in iommu-helper.h)
> 

A long time ago (a couple months?) I merged large swaths of ccio and sba
code... unfortunately, it caused an almost measurable (~2-5%) loss of
performance on networking and scsi throughput...

I probably lost the code when my j6000 disk failed, but I'll probably
have another crack at it someday.

Anyway, the patch looks good, but it needs a bit of testing, so I think
we'll wait for 2.6.25 to merge it?

Regards,
	Kyle
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On Sun, Oct 14, 2007 at 08:48:27AM -0600, Matthew Wilcox wrote:
> 
> commit 5d04e33a34814d0cc3029f4b1ba0e62829cb4610
> Author: Matthew Wilcox <matthew@wil.cx>
> Date:   Sun Oct 14 10:13:31 2007 -0400
> 
>     parisc: Fix infinite loop in /proc/iomem
>     
>     pcibios_link_hba_resources() could corrupt the resource tree by inserting
>     resources in the wrong place.  Fix this by calling pci_claim_resource()
>     for PCI-PCI bridges.  Delete pcibios_link_hba_resources as we shouldn't
>     need it any more.  Also get rid of lba_claim_dev_resources() and just
>     call pci_claim_resource() directly.

Nice!

Just one question on this bit:

> @@ -803,6 +768,9 @@ lba_fixup_bus(struct pci_bus *bus)
>  				DBG("lba_fixup_bus() WTF? 0x%lx [%lx/%lx] XXX",
>  					res->flags, res->start, res->end);
>  			}
> +			if ((i != PCI_ROM_RESOURCE) ||
> +			    (res->flags & IORESOURCE_ROM_ENABLE))
> +				pci_claim_resource(dev, i);
>  		}
>  

Why would ROM_ENABLE be set for something that's not a ROM?
I would expect "is ROM BAR _and_ ROM_ENABLE".

What am I missing? Maybe add a comment for this?

the rest looks good.

thanks,
grant
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On Thu, Oct 18, 2007 at 03:31:48PM -0600, Grant Grundler wrote:
> Why would ROM_ENABLE be set for something that's not a ROM?
> I would expect "is ROM BAR _and_ ROM_ENABLE".
> 
> What am I missing? Maybe add a comment for this?

Nevermind...this got explained over IRC.
ROM_ENABLE only gets checked for ROM devices.
Willy suggested this comment:
/* Don't register resources for disabled ROMs as they may overlap each other */

and that works for me.

thanks,
grant
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On Wed, Jul 25, 2007 at 07:42:59AM -0600, Matthew Wilcox wrote:
> 
> I found a DAT today with the following contents on it.  Looks like it
> may have been a snapshot of the p-l ftp archive, possibly taken for
> transport to a show or something.  Anyone want to preserve these for
> historical purposes, or can I just write over this tape?

Write over it. I don't care since all that stuff was SOM based.

thanks for asking though,
grant
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Hello Kyle,

Hppay that you finaly receive it ;-)
(btw sorry for boucing)

Kyle McMartin wrote:
> On Tue, Oct 16, 2007 at 04:34:08PM +0000, Joel Soete wrote:
>> And here is the main hunk:
>>
>> This consist of 'backporting' to ccio of the most of Grant's work on sg list
>> management of sba-iommu.
>>
>> According to some stress test on d380 it makes ncr driver more stable; 
>> improve
>> network perf on my d380 (from 110 to 430 kb/s);
>> (would allow in a next step merge some hunk of sba code in iommu-helper.h)
>>
> 
> A long time ago (a couple months?) I merged large swaths of ccio and sba
> code... unfortunately, it caused an almost measurable (~2-5%) loss of
> performance on networking and scsi throughput...
> 
On network it's sure this one is a measarable improvement ;-)
Otoh for scsi I mainly record a improvement of stability (but I will try more measure)

> I probably lost the code when my j6000 disk failed,
too bad

> but I'll probably
> have another crack at it someday.
> 
hope so.

> Anyway, the patch looks good, but it needs a bit of testing, so I think
> we'll wait for 2.6.25 to merge it?
> 
I hope too more testing, I can just test on my d380 (my c110 seems to be in bad status: after each reboot it makes a fsck 
and lost many files :_( ???)

> Regards,
> 	Kyle
> 
> 
Tx,
	J.
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On Sat, Oct 20, 2007 at 05:21:44PM +0000, Joel Soete wrote:
> Hello Kyle,
> 
> Hppay that you finaly receive it ;-)
> (btw sorry for boucing)
> 

I've looked over the code, and it looks fine to me. Will wait for an ack
>from Grant though, since I have no ability to test ccio :/

Cheers and thanks,
	Kyle
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On Sun, Oct 21, 2007 at 07:54:53PM +0200, Roel Kluin wrote:
> +config GSC_DEBUG
> +	bool "VSC_GSC_HSC bus debugging"

What an ugly prompt string ...

> +	depends on GSC
> +	default n

default is 'n', by default.  No need to specify it.

> +#ifdef GSC_DEBUG
> +	#define DEBUG 1
> +#endif

Why the indent?

> -	DEBPRINTK("%s intr, mask=0x%x\n", gsc_asic->name, irr);
> +	printk("%s intr, mask=0x%x\n", gsc_asic->name, irr);

Presumably you meant pr_debug?

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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Subject: Re: [parisc-linux] [patch 2/2] backport of sba sg list management
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> On Sat, Oct 20, 2007 at 01:23:28PM -0400, Kyle McMartin wrote:
> > On Sat, Oct 20, 2007 at 05:21:44PM +0000, Joel Soete wrote:
> > > Hello Kyle,
> > > 
> > > Hppay that you finaly receive it ;-)
> > > (btw sorry for boucing)
> > > 
> > 
> > I've looked over the code, and it looks fine to me. Will wait for an ack
> > from Grant though, since I have no ability to test ccio :/
> 
> We both have access to the FtC test ring - but I think we are also both
> too lazy to build a kernel and test it on a remote box. :)
> 
> In general I'm ok with this code since I trust Joel is testing
> it with both NIC and storage devices and I'm too lazy to.
> 
> Some comments/requests/ideas below but nothing critical.
> 
> Apologies that I'm cut/pasting from the mailing list archive:
>    
http://lists.parisc-linux.org/pipermail/parisc-linux/2007-October/031998.html
> 
> I didn't have the original mail in my inbox anymore.
> 
> 
> +static CCIO_INLINE int
> +get_iovp_order(unsigned long size)
> +{
> +	int order;
> +
> +	size = (size - 1) >> (IOVP_SHIFT - 1);
> +	order = -1;
> +	do {
> +		size >>= 1;
> +		order++;
> +	} while (size);
> +	return order;
> +}
> 
> Would this be faster if written to use "ffs()"?
> 
This seems to be better fls then ffs like:
int get_iovp_order_faster(unsigned long size)
{
	return fls((size - 1) >> (IOVP_SHIFT));
}

Even thought following test seems to be ok:
	unsigned int a;
	unsigned long ul;

	/* for proof of concept
	*/
	for (ul=0; ul<536870914; ul++) {
		if ( get_iovp_order(ul) != get_iovp_order_faster(ul) ) {
			printf("get_iovp_order(%ld) = %ld (0x%x)\n\n", ul, a = get_iovp_order(ul), a);
			printf("get_iovp_order_faster(%ld) = %ld (0x%x)\n\n", ul, a =
get_iovp_order_faster(ul), a);
			exit (1);
		}
	}

But what would give the kernel generic (include/asm-generic/page.h: this is
what get_iovp_order() is if IOVP_SHIFT==PAGE_SHIFT) get_order(0): 0?
the answer is 20 for paric and ia32?
 
> 
> ...
> +#define ROUNDUP(x, y)		((x + ((y)-1)) & ~((y)-1))
> 
> ROUNDUP got replace in SBA with ALIGN(). Please use ALIGN instead.

Yes I figure it out later sorry.
 
> 
> ...
> +	} else {
> +		/*
> +		** Search the resource bit map on well-aligned values.
> +		** "o" is the alignment.
> +		** We need the alignment to invalidate I/O TLB using
> +		** xxx HW features in the unmap path.
> +		*/
> +		unsigned long o = 1 << get_iovp_order(pages_wanted << IOVP_SHIFT);
> +		uint bitshiftcnt = ROUNDUP(ioc->res_bitshift, o);
> +		unsigned long mask;
> 
> CCIO doesn't have this feature AFAIK. The comment only applies to SBA.
> Please remove the second sentence of the comment.
Ok.

> Searching on "well-aligned" values is still a good idea.
> 
> 
> NOTE: Each 8 consecutive CCIO IO PDIR mappings land on the same IO TLB entry.
> 
> To avoid thrashing the IO TLB, ideally CCIO code will do the following:
> 
> o map_sg (ie storage devices) use 8 bit alignment (ie each mapping start
>  on a new byte boundary).  Traditional block storage can complete the
>  IOs out of order and in parallel (via different controllers). This
>  would thrash one IO TLB entry if 8 seperate 4K DMA mappings are inflight
>  at the same time.
> 
> o map_single() (ie NICs) to just use the next available bit for a given
>   PCI device.  NIC DMA patterns (at least for a given stream) are linear.
>   The ccio_map_single() should track the last bitmap octet used for both
>   DMA_TO_DEVICE and FROM_DEVICE for each PCI device.
>   Once that octet is "used", find the next 8 bit field in the bitmap that
>   is available.
> 
> For a single NIC and one or two SCSI controllers, this probably doesn't
> make much difference unless you start measuring latency. Throughput
> should be nearly the same.
> 
> My guess is the biggest perf gain will come from reducing the number
> of "sync" ops by implementing DELAYED_RESOURCE_CNT. 
> 
> 
> ...
>  #ifdef CCIO_SEARCH_TIME
> +	udelay(100);
> 
> Did you want to keep udelay() call?
> 
Most probably not (just need more test)

> 
> ...
> +#else /* DELAYED_RESOURCE_CNT == 0 */
> +
> +	ccio_free_range(ioc, iova, size);
> +
> +	/* force fdc's to be visible now */
> +	asm volatile("sync" :: );
> +
> +#endif /* DELAYED_RESOURCE_CNT == 0 */
> 
> Does the asm("sync") need to be outside the #endif ?
> Please make sure "sync" is called exactly once IFF 
> the IO PDIR is modified.
> 
Well understand but this check stay hard to me (but I will try to spend a bit
more time to check)

> 
> ...
> +#ifdef CCIO_MAP_STATS
> +		ioc->usg_pages += sg_dma_len(sglist) >> IOVP_SHIFT;
> +		ioc->usingle_calls--;   /* kluge since call is unmap_sg() */
> +#endif
> 
> I wouldn't add MAP_STATS here.
> They aren't enabled in SBA becuase they impact performance too much.
> I expect that will always be true and would seriously consider removing
> MAP_STATS code from SBA as well. Timing the bitmap search is
> probably the only critical bit of info that really matters. 
> And that's for developement/testing only.
> 
mmm, I would so let stay here but with just additional comment to prevent to
activate it outside this developement/testing context?

> hth,
> grant
> 
Yes, tx a lot,
    J.

>
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Subject: Re: [parisc-linux] [patch 2/2] backport of sba sg list management
	to ccio-dma
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On Sat, Oct 20, 2007 at 01:23:28PM -0400, Kyle McMartin wrote:
> On Sat, Oct 20, 2007 at 05:21:44PM +0000, Joel Soete wrote:
> > Hello Kyle,
> > 
> > Hppay that you finaly receive it ;-)
> > (btw sorry for boucing)
> > 
> 
> I've looked over the code, and it looks fine to me. Will wait for an ack
> from Grant though, since I have no ability to test ccio :/

We both have access to the FtC test ring - but I think we are also both
too lazy to build a kernel and test it on a remote box. :)

In general I'm ok with this code since I trust Joel is testing
it with both NIC and storage devices and I'm too lazy to.

Some comments/requests/ideas below but nothing critical.

Apologies that I'm cut/pasting from the mailing list archive:
    http://lists.parisc-linux.org/pipermail/parisc-linux/2007-October/031998.html

I didn't have the original mail in my inbox anymore.


+static CCIO_INLINE int
+get_iovp_order(unsigned long size)
+{
+	int order;
+
+	size = (size - 1) >> (IOVP_SHIFT - 1);
+	order = -1;
+	do {
+		size >>= 1;
+		order++;
+	} while (size);
+	return order;
+}

Would this be faster if written to use "ffs()"?


...
+#define ROUNDUP(x, y)		((x + ((y)-1)) & ~((y)-1))

ROUNDUP got replace in SBA with ALIGN(). Please use ALIGN instead.


...
+	} else {
+		/*
+		** Search the resource bit map on well-aligned values.
+		** "o" is the alignment.
+		** We need the alignment to invalidate I/O TLB using
+		** xxx HW features in the unmap path.
+		*/
+		unsigned long o = 1 << get_iovp_order(pages_wanted << IOVP_SHIFT);
+		uint bitshiftcnt = ROUNDUP(ioc->res_bitshift, o);
+		unsigned long mask;

CCIO doesn't have this feature AFAIK. The comment only applies to SBA.
Please remove the second sentence of the comment.
Searching on "well-aligned" values is still a good idea.


NOTE: Each 8 consecutive CCIO IO PDIR mappings land on the same IO TLB entry.

To avoid thrashing the IO TLB, ideally CCIO code will do the following:

o map_sg (ie storage devices) use 8 bit alignment (ie each mapping start
 on a new byte boundary).  Traditional block storage can complete the
 IOs out of order and in parallel (via different controllers). This
 would thrash one IO TLB entry if 8 seperate 4K DMA mappings are inflight
 at the same time.

o map_single() (ie NICs) to just use the next available bit for a given
  PCI device.  NIC DMA patterns (at least for a given stream) are linear.
  The ccio_map_single() should track the last bitmap octet used for both
  DMA_TO_DEVICE and FROM_DEVICE for each PCI device.
  Once that octet is "used", find the next 8 bit field in the bitmap that
  is available.

For a single NIC and one or two SCSI controllers, this probably doesn't
make much difference unless you start measuring latency. Throughput
should be nearly the same.

My guess is the biggest perf gain will come from reducing the number
of "sync" ops by implementing DELAYED_RESOURCE_CNT. 


...
 #ifdef CCIO_SEARCH_TIME
+	udelay(100);

Did you want to keep udelay() call?


...
+#else /* DELAYED_RESOURCE_CNT == 0 */
+
+	ccio_free_range(ioc, iova, size);
+
+	/* force fdc's to be visible now */
+	asm volatile("sync" :: );
+
+#endif /* DELAYED_RESOURCE_CNT == 0 */

Does the asm("sync") need to be outside the #endif ?
Please make sure "sync" is called exactly once IFF 
the IO PDIR is modified.


...
+#ifdef CCIO_MAP_STATS
+		ioc->usg_pages += sg_dma_len(sglist) >> IOVP_SHIFT;
+		ioc->usingle_calls--;   /* kluge since call is unmap_sg() */
+#endif

I wouldn't add MAP_STATS here.
They aren't enabled in SBA becuase they impact performance too much.
I expect that will always be true and would seriously consider removing
MAP_STATS code from SBA as well. Timing the bitmap search is
probably the only critical bit of info that really matters. 
And that's for developement/testing only.

hth,
grant
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From: Joel Soete <soete.joel@scarlet.be>
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Subject: Re: [parisc-linux] [patch 2/2] backport of sba sg list management
	to ccio-dma
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Joel Soete wrote:
 >
 >
[snip]
 >
 > so I need to be sure that the value of ((size - 1) >> (PAGE_SHIFT))
 > would always stand in a int (not unsigned but sign) for 32bit (iirc
 > size_of(unsigned long)==32) and 64bit (size_of(unsigned long)==64)
 > implementations?
 >
Definitely not:

if ul = 0xffffffffffffffff (64bit wide i.e. 16*4bits)
ul >> 12 (PAGE_SHIFT) == 0xfffffffffffff (13*4bits)

and INT_MAX= 0x7fffffff far well < then 0xfffffffffffff ;_(

we can get the idea in a corner when fls prototype will change.

Sorry,
	J.

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Subject: Re: [parisc-linux] [patch 2/2] backport of sba sg list management
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Grant,


Grant Grundler wrote:
> On Sun, Oct 28, 2007 at 02:45:24PM +0000, Joel Soete wrote:
> ...
>> e.g.
>> # more GetOrder-poc.c
> ...
>> give me well same results:
>> # ./GetOrder-poc
>> get_order(1) = 0 (0x0);
>> get_order_poc(1) = 0 (0x0).
> ...
> 
> Good!
> 
> ...
>> But I need to check more on a detail:
>> here is the prototype of fls():
>> static inline int fls(int x)
>>
>> so I need to be sure that the value of ((size - 1) >> (PAGE_SHIFT)) would 
>> always stand in a int (not unsigned but sign) for 32bit (iirc 
>> size_of(unsigned long)==32) and 64bit (size_of(unsigned long)==64) 
>> implementations?
> 
> Huh?
> Why do you care how (unsigned long) is handled when the function prototype
> defines the API to pass in an "int"?
> 
Because I only have a theoritical knowledge of programming :<?

> FWIW, __fls could be extended to handle unsigned long the same way
> that __ffs has been...but I don't think we needed to for anything so far.
> 
Ok, I could check if I can recover my stuff about this fls()?
(should be something like <http://lists.parisc-linux.org/pipermail/parisc-linux/2006-September/030209.html>, I will test more)

> ...
>>>> 	return (size ? fls((size - 1) >> (PAGE_SHIFT)): 0);
>>> fls is inlined already and does the same test for size.
>> Yes but here the error (well imo it's an error) came from the unsign long 
>> of (-1 >> PAGE_SHIFT) <> 0
> 
> Yeah, we'll have to make sure signed int values are handled correctly too.
> But something specific to the parisc version of get_order() can deal
> with sign bits and zero values then call __fls(unsigned long) instead
> of fls(signed int).
> 
> grant
> 
> 
Tx again,
	j.
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Grant,

Just come back here because I don't understand this strange stuff:

Grant Grundler wrote:
[snip]
> ...
>  #ifdef CCIO_SEARCH_TIME
> +	udelay(100);
> 
> Did you want to keep udelay() call?
> 
here is short test:
without udelay:
# scp vmlinux  jso@patst007:/var/tmp/vmlinux-2.6.23-pa-d32up3
Password:
vmlinux                                                                                    100% 4364KB 101.5KB/s   00:43

with udelay:
# scp vmlinux  jso@patst007:/var/tmp/vmlinux-2.6.23-pa-d32up3
Password:
vmlinux                                                                                    100% 4364KB 436.4KB/s   00:10

well still far from what we could expect (about 800KB/s) but fwiw something supposing slowdown the kernel improve nic perf?

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On Thu, Nov 01, 2007 at 05:18:01PM +0000, Joel Soete wrote:
> here is short test:
> without udelay:
> # scp vmlinux  jso@patst007:/var/tmp/vmlinux-2.6.23-pa-d32up3

For testing NIC perf, please don't start with scp. Use ftp or something
else that doesn't use encryption. See www.netperf.org and/or iperf.

> Password:
> vmlinux                                                                     
>                100% 4364KB 101.5KB/s   00:43
>
> with udelay:
> # scp vmlinux  jso@patst007:/var/tmp/vmlinux-2.6.23-pa-d32up3
> Password:
> vmlinux                                                                     
>                100% 4364KB 436.4KB/s   00:10
>
> well still far from what we could expect (about 800KB/s) but fwiw something 
> supposing slowdown the kernel improve nic perf?

Yeah, that happens and it's clearly something wrong with the code.
Suggests there is contention either between CPU and IOTLB or between
CPU and IO device for a cacheline(s).

BTW, I'm assuming you have DELAYED_RESOURCE_CNT set to 16 or more.

thanks,
grant
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Joel Soete wrote:
> Grant,
> 
> 
> Grant Grundler wrote:
>> On Sun, Oct 28, 2007 at 02:45:24PM +0000, Joel Soete wrote:
>> ...
>>> e.g.
>>> # more GetOrder-poc.c
>> ...
>>> give me well same results:
>>> # ./GetOrder-poc
>>> get_order(1) = 0 (0x0);
>>> get_order_poc(1) = 0 (0x0).
>> ...
>>
>> Good!
>>
>> ...
>>> But I need to check more on a detail:
>>> here is the prototype of fls():
>>> static inline int fls(int x)
>>>
>>> so I need to be sure that the value of ((size - 1) >> (PAGE_SHIFT)) 
>>> would always stand in a int (not unsigned but sign) for 32bit (iirc 
>>> size_of(unsigned long)==32) and 64bit (size_of(unsigned long)==64) 
>>> implementations?
>>
>> Huh?
>> Why do you care how (unsigned long) is handled when the function 
>> prototype
>> defines the API to pass in an "int"?
>>
it seems that I simply forget the existance of fls_long().

I can now safely patch get_order() ;<).

Tx,
	J.

PS: Yes DELAYED_RESOURCE_CNT was set to 16
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Xref: news.gmane.org gmane.linux.ports.parisc:25470

On Sun, Oct 28, 2007 at 02:45:24PM +0000, Joel Soete wrote:
...
> e.g.
> # more GetOrder-poc.c
...
> give me well same results:
> # ./GetOrder-poc
> get_order(1) = 0 (0x0);
> get_order_poc(1) = 0 (0x0).
...

Good!

...
> But I need to check more on a detail:
> here is the prototype of fls():
> static inline int fls(int x)
>
> so I need to be sure that the value of ((size - 1) >> (PAGE_SHIFT)) would 
> always stand in a int (not unsigned but sign) for 32bit (iirc 
> size_of(unsigned long)==32) and 64bit (size_of(unsigned long)==64) 
> implementations?

Huh?
Why do you care how (unsigned long) is handled when the function prototype
defines the API to pass in an "int"?

FWIW, __fls could be extended to handle unsigned long the same way
that __ffs has been...but I don't think we needed to for anything so far.

...
>>> 	return (size ? fls((size - 1) >> (PAGE_SHIFT)): 0);
>> fls is inlined already and does the same test for size.
>
> Yes but here the error (well imo it's an error) came from the unsign long 
> of (-1 >> PAGE_SHIFT) <> 0

Yeah, we'll have to make sure signed int values are handled correctly too.
But something specific to the parisc version of get_order() can deal
with sign bits and zero values then call __fls(unsigned long) instead
of fls(signed int).

grant
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Subject: Re: [parisc-linux] [PATCH] VSC_GSC_HSC bus debugging
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Xref: news.gmane.org gmane.linux.ports.parisc:25471

Matthew Wilcox wrote:
> On Sun, Oct 21, 2007 at 07:54:53PM +0200, Roel Kluin wrote:
>> +config GSC_DEBUG
>> +	bool "VSC_GSC_HSC bus debugging"
> 
> What an ugly prompt string ...

I wrote a script to make these changes, but apparently it's still not perfect
I should have checked it more. I will make changes and resend previously sent
patches. Below is the patch previously called [PATCH] VSC_GSC_HSC bus debugging,
with corrections.

I used "VSC/GSC/HSC bus support" from "config GSC" in the Kconfig. the slashes
were translated to underscores because they previously gave a bug. it's fixed now,
but I think the name "VSC/GSC/HSC bus debugging" is more appropriate here.
 
>> +	depends on GSC
>> +	default n
> 
> default is 'n', by default.  No need to specify it.

ok fixed that

>> +#ifdef GSC_DEBUG
>> +	#define DEBUG 1
>> +#endif
> 
> Why the indent?

I thought it was more clear. But have that changed now as well.

>> -	DEBPRINTK("%s intr, mask=0x%x\n", gsc_asic->name, irr);
>> +	printk("%s intr, mask=0x%x\n", gsc_asic->name, irr);
> 
> Presumably you meant pr_debug?

yes.

Thanks for your comments. How is the one below instead? It is a replacement for
[PATCH] VSC_GSC_HSC bus debugging.

Now there's also a change in some printk's and the GSC_DEBUG option has a place
lower in the Kconfig file. I also added a Kconfig help description.

---
    Kconfig GSC bus debugging and more elaborate printks
    
    Signed-off-by: Roel Kluin <12o3l@tiscali.nl>

diff --git a/drivers/parisc/Kconfig b/drivers/parisc/Kconfig
index 1d3b84b..8959141 100644
--- a/drivers/parisc/Kconfig
+++ b/drivers/parisc/Kconfig
@@ -54,6 +54,12 @@ config EISA
 	  supports both the Mongoose & Wax EISA adapters.  It is sadly
 	  incomplete and lacks support for card-to-host DMA.
 
+config GSC_DEBUG
+	bool "VSC/GSC/HSC bus debugging"
+	depends on GSC
+	help
+	  Say Y here to enable debugging for VSC, GSC and HSC busses.
+
 source "drivers/eisa/Kconfig"
 
 config ISA
diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c
index 1b3e3fd..8805abb 100644
--- a/drivers/parisc/gsc.c
+++ b/drivers/parisc/gsc.c
@@ -27,19 +27,17 @@
 
 #include "gsc.h"
 
-#undef DEBUG
-
-#ifdef DEBUG
-#define DEBPRINTK printk
-#else
-#define DEBPRINTK(x,...)
+#ifdef GSC_DEBUG
+#define DEBUG 1
 #endif
+#include <linux/kernel.h>
+
 
 int gsc_alloc_irq(struct gsc_irq *i)
 {
 	int irq = txn_alloc_irq(GSC_EIM_WIDTH);
 	if (irq < 0) {
-		printk("cannot get irq\n");
+		printk("GSC: cannot get irq\n");
 		return irq;
 	}
 
@@ -58,7 +56,7 @@ int gsc_claim_irq(struct gsc_irq *i, int irq)
 
 	irq = txn_claim_irq(irq);
 	if (irq < 0) {
-		printk("cannot claim irq %d\n", c);
+		printk("GSC: cannot claim irq %d\n", c);
 		return irq;
 	}
 
@@ -82,7 +80,7 @@ irqreturn_t gsc_asic_intr(int gsc_asic_irq, void *dev)
 	if (irr == 0)
 		return IRQ_NONE;
 
-	DEBPRINTK("%s intr, mask=0x%x\n", gsc_asic->name, irr);
+	pr_debug("%s intr, mask=0x%x\n", gsc_asic->name, irr);
 
 	do {
 		int local_irq = __ffs(irr);
@@ -112,7 +110,7 @@ static void gsc_asic_disable_irq(unsigned int irq)
 	int local_irq = gsc_find_local_irq(irq, irq_dev->global_irq, 32);
 	u32 imr;
 
-	DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __FUNCTION__, irq,
+	pr_debug("%s(%d) %s: IMR 0x%x\n", __FUNCTION__, irq,
 			irq_dev->name, imr);
 
 	/* Disable the IRQ line by clearing the bit in the IMR */
@@ -127,7 +125,7 @@ static void gsc_asic_enable_irq(unsigned int irq)
 	int local_irq = gsc_find_local_irq(irq, irq_dev->global_irq, 32);
 	u32 imr;
 
-	DEBPRINTK(KERN_DEBUG "%s(%d) %s: IMR 0x%x\n", __FUNCTION__, irq,
+	pr_debug("%s(%d) %s: IMR 0x%x\n", __FUNCTION__, irq,
 			irq_dev->name, imr);
 
 	/* Enable the IRQ line by setting the bit in the IMR */
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Subject: [parisc-linux] [PATCH] alpha/parisc: Removing config variable
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Xref: news.gmane.org gmane.linux.ports.parisc:25472

Removing config variable DEBUG_RWLOCK, since it is not used

Signed-off-by: Jiri Olsa <olsajiri@gmail.com>
---
 arch/alpha/Kconfig.debug           |    9 ---------
 arch/alpha/defconfig               |    1 -
 arch/parisc/Kconfig.debug          |    9 ---------
 arch/parisc/configs/a500_defconfig |    1 -
 4 files changed, 0 insertions(+), 20 deletions(-)

diff --git a/arch/alpha/Kconfig.debug b/arch/alpha/Kconfig.debug
index f45f28c..3f6265f 100644
--- a/arch/alpha/Kconfig.debug
+++ b/arch/alpha/Kconfig.debug
@@ -7,15 +7,6 @@ config EARLY_PRINTK
 	depends on ALPHA_GENERIC || ALPHA_SRM
 	default y
 
-config DEBUG_RWLOCK
-	bool "Read-write spinlock debugging"
-	depends on DEBUG_KERNEL
-	help
-	  If you say Y here then read-write lock processing will count how many
-	  times it has tried to get the lock and issue an error message after
-	  too many attempts.  If you suspect a rwlock problem or a kernel
-	  hacker asks for this option then say Y.  Otherwise say N.
-
 config ALPHA_LEGACY_START_ADDRESS
 	bool "Legacy kernel start address"
 	depends on ALPHA_GENERIC
diff --git a/arch/alpha/defconfig b/arch/alpha/defconfig
index 6da9c3d..e43f68f 100644
--- a/arch/alpha/defconfig
+++ b/arch/alpha/defconfig
@@ -882,7 +882,6 @@ CONFIG_MAGIC_SYSRQ=y
 # CONFIG_DEBUG_SPINLOCK is not set
 CONFIG_DEBUG_INFO=y
 CONFIG_EARLY_PRINTK=y
-# CONFIG_DEBUG_RWLOCK is not set
 # CONFIG_DEBUG_SEMAPHORE is not set
 CONFIG_ALPHA_LEGACY_START_ADDRESS=y
 CONFIG_MATHEMU=y
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 9166bd1..bc989e5 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -2,15 +2,6 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
-config DEBUG_RWLOCK
-        bool "Read-write spinlock debugging"
-        depends on DEBUG_KERNEL && SMP
-        help
-          If you say Y here then read-write lock processing will count how many
-          times it has tried to get the lock and issue an error message after
-          too many attempts.  If you suspect a rwlock problem or a kernel
-          hacker asks for this option then say Y.  Otherwise say N.

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Subject: Re: [parisc-linux] [PATCH] alpha/parisc: Removing config variable
	DEBUG_RWLOCK
Date: Thu, 15 Nov 2007 12:06:05 -0700
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Xref: news.gmane.org gmane.linux.ports.parisc:25473

On Thu, Nov 15, 2007 at 09:42:05AM +0100, Jiri Olsa wrote:
> Removing config variable DEBUG_RWLOCK, since it is not used
> 
> Signed-off-by: Jiri Olsa <olsajiri@gmail.com>

For the arch/parisc bit:
  Acked-by: Grant Grundler <grundler@parisc-linux.org>

thanks,
grant

> ---
>  arch/alpha/Kconfig.debug           |    9 ---------
>  arch/alpha/defconfig               |    1 -
>  arch/parisc/Kconfig.debug          |    9 ---------
>  arch/parisc/configs/a500_defconfig |    1 -
>  4 files changed, 0 insertions(+), 20 deletions(-)
> 
> diff --git a/arch/alpha/Kconfig.debug b/arch/alpha/Kconfig.debug
> index f45f28c..3f6265f 100644
> --- a/arch/alpha/Kconfig.debug
> +++ b/arch/alpha/Kconfig.debug
> @@ -7,15 +7,6 @@ config EARLY_PRINTK
>  	depends on ALPHA_GENERIC || ALPHA_SRM
>  	default y
>  
> -config DEBUG_RWLOCK
> -	bool "Read-write spinlock debugging"
> -	depends on DEBUG_KERNEL
> -	help
> -	  If you say Y here then read-write lock processing will count how many
> -	  times it has tried to get the lock and issue an error message after
> -	  too many attempts.  If you suspect a rwlock problem or a kernel
> -	  hacker asks for this option then say Y.  Otherwise say N.
> -
>  config ALPHA_LEGACY_START_ADDRESS
>  	bool "Legacy kernel start address"
>  	depends on ALPHA_GENERIC
> diff --git a/arch/alpha/defconfig b/arch/alpha/defconfig
> index 6da9c3d..e43f68f 100644
> --- a/arch/alpha/defconfig
> +++ b/arch/alpha/defconfig
> @@ -882,7 +882,6 @@ CONFIG_MAGIC_SYSRQ=y
>  # CONFIG_DEBUG_SPINLOCK is not set
>  CONFIG_DEBUG_INFO=y
>  CONFIG_EARLY_PRINTK=y
> -# CONFIG_DEBUG_RWLOCK is not set
>  # CONFIG_DEBUG_SEMAPHORE is not set
>  CONFIG_ALPHA_LEGACY_START_ADDRESS=y
>  CONFIG_MATHEMU=y
> diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
> index 9166bd1..bc989e5 100644
> --- a/arch/parisc/Kconfig.debug
> +++ b/arch/parisc/Kconfig.debug
> @@ -2,15 +2,6 @@ menu "Kernel hacking"
>  
>  source "lib/Kconfig.debug"
>  
> -config DEBUG_RWLOCK
> -        bool "Read-write spinlock debugging"
> -        depends on DEBUG_KERNEL && SMP
> -        help
> -          If you say Y here then read-write lock processing will count how many
> -          times it has tried to get the lock and issue an error message after
> -          too many attempts.  If you suspect a rwlock problem or a kernel
> -          hacker asks for this option then say Y.  Otherwise say N.
> -
>  config DEBUG_RODATA
>         bool "Write protect kernel read-only data structures"
>         depends on DEBUG_KERNEL
> diff --git a/arch/parisc/configs/a500_defconfig b/arch/parisc/configs/a500_defconfig
> index ea07121..ddacc72 100644
> --- a/arch/parisc/configs/a500_defconfig
> +++ b/arch/parisc/configs/a500_defconfig
> @@ -1050,7 +1050,6 @@ CONFIG_SCHED_DEBUG=y
>  CONFIG_FORCED_INLINING=y
>  # CONFIG_RCU_TORTURE_TEST is not set
>  # CONFIG_FAULT_INJECTION is not set
> -# CONFIG_DEBUG_RWLOCK is not set
>  # CONFIG_DEBUG_RODATA is not set
>  
>  #
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Subject: [parisc-linux] [PATCH] parisc: balance parenthesis in
	pte_free_kernel()
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Xref: news.gmane.org gmane.linux.ports.parisc:25474

Hello,

	Another parenthesis fix.

Regards,

	Mariusz


Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>

 include/asm-parisc/pgalloc.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.24-rc2-mm1-a/include/asm-parisc/pgalloc.h	2007-11-15 11:36:44.000000000 +0100
+++ linux-2.6.24-rc2-mm1-b/include/asm-parisc/pgalloc.h	2007-11-15 11:37:17.000000000 +0100
@@ -141,7 +141,7 @@ static inline void pte_free_kernel(struc
 static inline void pte_free_kernel(struct mm_struct *mm, struct page *pte)
 {
 	pgtable_page_dtor(pte);
-	pte_free_kernel(page_address((pte));
+	pte_free_kernel(page_address(pte));
 }

 #define check_pgt_cache()	do { } while (0)
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Subject: Re: [parisc-linux] [PATCH] alpha/parisc: Removing config variable
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On Thu, 15 Nov 2007, Grant Grundler wrote:

> On Thu, Nov 15, 2007 at 09:42:05AM +0100, Jiri Olsa wrote:
> > Removing config variable DEBUG_RWLOCK, since it is not used

... snip ...

> > diff --git a/arch/parisc/configs/a500_defconfig b/arch/parisc/configs/a500_defconfig
> > index ea07121..ddacc72 100644
> > --- a/arch/parisc/configs/a500_defconfig
> > +++ b/arch/parisc/configs/a500_defconfig
> > @@ -1050,7 +1050,6 @@ CONFIG_SCHED_DEBUG=y
> >  CONFIG_FORCED_INLINING=y
> >  # CONFIG_RCU_TORTURE_TEST is not set
> >  # CONFIG_FAULT_INJECTION is not set
> > -# CONFIG_DEBUG_RWLOCK is not set
> >  # CONFIG_DEBUG_RODATA is not set

IIRC, you typically don't bother fixing up the defconfig files --
those will be regenerated eventually.

rday
--
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

http://crashcourse.ca
========================================================================
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Robert P. J. Day wrote:
> On Thu, 15 Nov 2007, Grant Grundler wrote:
> 
>> On Thu, Nov 15, 2007 at 09:42:05AM +0100, Jiri Olsa wrote:
>>> Removing config variable DEBUG_RWLOCK, since it is not used
> 
> ... snip ...
> 
>>> diff --git a/arch/parisc/configs/a500_defconfig b/arch/parisc/configs/a500_defconfig
>>> index ea07121..ddacc72 100644
>>> --- a/arch/parisc/configs/a500_defconfig
>>> +++ b/arch/parisc/configs/a500_defconfig
>>> @@ -1050,7 +1050,6 @@ CONFIG_SCHED_DEBUG=y
>>>  CONFIG_FORCED_INLINING=y
>>>  # CONFIG_RCU_TORTURE_TEST is not set
>>>  # CONFIG_FAULT_INJECTION is not set
>>> -# CONFIG_DEBUG_RWLOCK is not set
>>>  # CONFIG_DEBUG_RODATA is not set
> 
> IIRC, you typically don't bother fixing up the defconfig files --
> those will be regenerated eventually.

I think they are part of repository... I'll check

> 
> rday
> --
> ========================================================================
> Robert P. J. Day
> Linux Consulting, Training and Annoying Kernel Pedantry
> Waterloo, Ontario, CANADA
> 
> http://crashcourse.ca
> ========================================================================
> 

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On Fri, 16 Nov 2007, Jiri Olsa wrote:

> Robert P. J. Day wrote:

> > IIRC, you typically don't bother fixing up the defconfig files --
> > those will be regenerated eventually.
>
> I think they are part of repository... I'll check

yes, they're part of the repository but, as it was once explained to
me, they're autogenerated on a regular basis so, once there's no
remaining references to a Kconfig variable, the corresponding entries
in the defconfig files should eventually go away automatically.  ergo,
don't spend any time trying to clean them up.

rday
--

========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

http://crashcourse.ca
========================================================================
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On Thu, Nov 15, 2007 at 02:54:45PM -0500, Robert P. J. Day wrote:
...
> > > -# CONFIG_DEBUG_RWLOCK is not set
> > >  # CONFIG_DEBUG_RODATA is not set
> 
> IIRC, you typically don't bother fixing up the defconfig files --
> those will be regenerated eventually.

It's not automatic though. So I don't mind the update.

thanks,
grant
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Xref: news.gmane.org gmane.linux.ports.parisc:25479

Hello Grant, Kyle,

I finaly find an interesting paper on this Runway bc:
<http://www.hpl.hp.com/hpjournal/96feb/feb96a6.htm>

I read it but i don't yet understand it in deep but this detail:
"The lower 12 bits of the address must be left alone because of the 4K-byte page size defined by the architecture."

make me think that the IOVP_SHIFT of this ccio-dma driver would be always 12 what ever could be the PAGE_SHIFT (it's not yet 
possible but for pa8000 and later it could be greater)?

That said for the moment IOVP_SHIF == PAGE_SHIFT so couldn't be the reason of the followings issues.

On my d380, I reach to re-iterate some stress test on scsi ncr53c720 and LASI 53c700 with a simple read/write loop like:
# while true ; do nice -n -3 tar -xspf linux-2.6.11-rc3-pa3.tar ; nice -n -3 rm -rf linux-2.6.11-rc3-pa3 ; date ; done

With a fs build on a disk connected to a 53c710 hba, with or without my bp patch, unfortunately I always got same errors 
after some loop's occurence:
scsi3: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
  scsi3: Bus Reset detected, executing command 10a304e0, slot 10a0864c, dsp 001681e8[01e8]
   failing command because of reset, slot 10a08520, cmnd 10a30720
   failing command because of reset, slot 10a0864c, cmnd 10a304e0
   failing command because of reset, slot 10a08778, cmnd 10a303c0
   failing command because of reset, slot 10a088a4, cmnd 16eacd40
  scsi3: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
  scsi3: Bus Reset detected, executing command 10a30600, slot 10a088a4, dsp 001681e8[01e8]
   failing command because of reset, slot 10a08520, cmnd 16eacd40
   failing command because of reset, slot 10a0864c, cmnd 10a304e0
   failing command because of reset, slot 10a08778, cmnd 10a30720
   failing command because of reset, slot 10a088a4, cmnd 10a30600
  scsi3: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
  scsi3: Bus Reset detected, executing command 16eac9e0, slot 10a088a4, dsp 001681e8[01e8]
   failing command because of reset, slot 10a08520, cmnd 16eace60
   failing command because of reset, slot 10a0864c, cmnd 10a30600
   failing command because of reset, slot 10a08778, cmnd 16eacd40
   failing command because of reset, slot 10a088a4, cmnd 16eac9e0
[snip]

(this same disk connected to same lasi 53c710 of a b180 i.e. without ccio-dma could loop severall days without showing any 
issue)

On a disk attached to a ncr53c720 hba I also get errors:
  EXT3-fs error (device dm-0): ext3_free_blocks: Freeing blocks not in datazone - block = 1818455657, count = 1
  EXT3-fs error (device dm-0): ext3_free_blocks: Freeing blocks not in datazone - block = 157639797, count = 1
  EXT3-fs error (device dm-0): ext3_free_blocks: Freeing blocks not in datazone - block = 1852402748, count = 1
  EXT3-fs error (device dm-0): ext3_free_blocks: Freeing blocks not in datazone - block = 1714387061, count = 1
[snip]

With the original ccio-dma driver it occures after few occurence of the loop (about 5) but my patch only delay the pb to 
several houres (not useless work but not yet enough).

Any way fs is corrupted and this bring me to next major issue with my c110 (using same ncr53c720, lasi 53c710 and ccio-dma 
drivers as d380). This box was sleeping till about a year, so I removed additional ram kit of 512Mb for another usage and 
restored original ram of 64Mb, but internal boot disk stay unchanged connected to the ncr53c720 hba.
When I tried to reboot it some weeks ago with an existing & known working kernels (from the time system still own 512Mb; 
e.g. 2.6.8.1-pa7, 2.6.14-pa0, 2.6.19), it started to make a fsck obviously but this always sadely (fsck generating a fs 
corrution, well not directly but by border effect) ended by fs corruption too. That's only with the very old debian install 
kernel 2.4.17-32 that I reach to reboot this system to install latest 2.6.23-pa.orig and 2.6.23-pa+patch kernels. I could 
also reach to reboot this box with latest mentioned kernels but as soon as I launched an 'apt-get dist-upgrade' (after a 
update obviously) fs corruption occured again. I was inocently expecting that after some reboot, fsck and renew 
dist-upgrade, I would finaly recover a system operational like my d380. But I was wrong and after 2 or 3 reboot this box 
became not-bootable anymore (having lost too much critical files on the root fs :_().

[Sade sade sade to me: in 10 years of linux, it's the very first time I lost a system because of sw issue :__(]

All this story to say in summary, a d380 with 256Mb of ram works more or less fine (if I don't stress scsi disk) but a c110 
with few 64Mb is not usable at all (with either original or patched 2.6.23-pa kernels)?

I have the filing that some cache coherency (I/O, mem??) lakes somewhere but I didn't understand where/what is the code that 
do it now, so if you have some more time to pin point it to me, I would greatly appreciate.

TIA,
	J.


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On Sat, Nov 24, 2007 at 08:36:03PM +0000, Joel Soete wrote:
> Hello Grant, Kyle,
>
> I finaly find an interesting paper on this Runway bc:
> <http://www.hpl.hp.com/hpjournal/96feb/feb96a6.htm>

Yeah, I read that article around the time it was published.
I was fortunate to have worked with Todd Kjos in the same group.

> I read it but i don't yet understand it in deep but this detail:
> "The lower 12 bits of the address must be left alone because of the 4K-byte 
> page size defined by the architecture."
>
> make me think that the IOVP_SHIFT of this ccio-dma driver would be always 
> 12 what ever could be the PAGE_SHIFT

The 12-bits per page (4k pages) is hard wired for the PA1.1 machines. 

> (it's not yet possible but for pa8000 and later it could be greater)?

Right. PA2.0 machines can support variable page sizes and parisc-linux
has "almost working" support bigger page sizes.

> That said for the moment IOVP_SHIF == PAGE_SHIFT so couldn't be the reason 
> of the followings issues.

Right, there might be other caching issues still though.

> On my d380, I reach to re-iterate some stress test on scsi ncr53c720 and 
> LASI 53c700 with a simple read/write loop like:
> # while true ; do nice -n -3 tar -xspf linux-2.6.11-rc3-pa3.tar ; nice -n 
> -3 rm -rf linux-2.6.11-rc3-pa3 ; date ; done

Sorry...same questions again:
	SMP or UP kernel?
	Which kernel version?


> With a fs build on a disk connected to a 53c710 hba, with or without my bp 
> patch, unfortunately I always got same errors after some loop's occurence:
> scsi3: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
>  scsi3: Bus Reset detected, executing command 10a304e0, slot 10a0864c, dsp 
> 001681e8[01e8]
>   failing command because of reset, slot 10a08520, cmnd 10a30720
...
> [snip]
>
> (this same disk connected to same lasi 53c710 of a b180 i.e. without 
> ccio-dma could loop severall days without showing any issue)

B180 is using uncached memory for it's control data and this has a
very different CPU timing. It's hard to say if the problem is a
memory ordering issue in zalon support or a bug in ccio driver.

sorry, can't be more precise than that.

cheers,
grant

> datazone - block = 1714387061, count = 1
> [snip]
>
> With the original ccio-dma driver it occures after few occurence of the 
> loop (about 5) but my patch only delay the pb to several houres (not 
> useless work but not yet enough).
>
> Any way fs is corrupted and this bring me to next major issue with my c110 
> (using same ncr53c720, lasi 53c710 and ccio-dma drivers as d380). This box 
> was sleeping till about a year, so I removed additional ram kit of 512Mb 
> for another usage and restored original ram of 64Mb, but internal boot disk 
> stay unchanged connected to the ncr53c720 hba.
> When I tried to reboot it some weeks ago with an existing & known working 
> kernels (from the time system still own 512Mb; e.g. 2.6.8.1-pa7, 
> 2.6.14-pa0, 2.6.19), it started to make a fsck obviously but this always 
> sadely (fsck generating a fs corrution, well not directly but by border 
> effect) ended by fs corruption too. That's only with the very old debian 
> install kernel 2.4.17-32 that I reach to reboot this system to install 
> latest 2.6.23-pa.orig and 2.6.23-pa+patch kernels. I could also reach to 
> reboot this box with latest mentioned kernels but as soon as I launched an 
> 'apt-get dist-upgrade' (after a update obviously) fs corruption occured 
> again. I was inocently expecting that after some reboot, fsck and renew 
> dist-upgrade, I would finaly recover a system operational like my d380. But 
> I was wrong and after 2 or 3 reboot this box became not-bootable anymore 
> (having lost too much critical files on the root fs :_().
>
> [Sade sade sade to me: in 10 years of linux, it's the very first time I 
> lost a system because of sw issue :__(]
>
> All this story to say in summary, a d380 with 256Mb of ram works more or 
> less fine (if I don't stress scsi disk) but a c110 with few 64Mb is not 
> usable at all (with either original or patched 2.6.23-pa kernels)?
>
> I have the filing that some cache coherency (I/O, mem??) lakes somewhere 
> but I didn't understand where/what is the code that do it now, so if you 
> have some more time to pin point it to me, I would greatly appreciate.
>
> TIA,
> 	J.
>
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Xref: news.gmane.org gmane.linux.ports.parisc:25481

> On Sat, Nov 24, 2007 at 08:36:03PM +0000, Joel Soete wrote:
> > Hello Grant, Kyle,
> >
> > I finaly find an interesting paper on this Runway bc:
> > <http://www.hpl.hp.com/hpjournal/96feb/feb96a6.htm>
> 
> Yeah, I read that article around the time it was published.
> I was fortunate to have worked with Todd Kjos in the same group.
> 
Clear and accurate paper ;-)

> > I read it but i don't yet understand it in deep but this detail:
> > "The lower 12 bits of the address must be left alone because of the 4K-byte 
> > page size defined by the architecture."
> >
> > make me think that the IOVP_SHIFT of this ccio-dma driver would be always 
> > 12 what ever could be the PAGE_SHIFT
> 
> The 12-bits per page (4k pages) is hard wired for the PA1.1 machines. 
> 
Ok but paper spoke of pa7200 (pa1.1) _and_ pa8000 (afaik pa2.0), so aware of
new cpu capability, but my understanding is that I/O page size seems to me it
could be different then cpu page size and would be fixed to 4k because of
"Block ID" size of 12bits?

That said, paper only spoke of J/K model.
C1xx and Dxxx are model which looks like J but some subtitle difference could
exist.

> > (it's not yet possible but for pa8000 and later it could be greater)?
> 
> Right. PA2.0 machines can support variable page sizes and parisc-linux
> has "almost working" support bigger page sizes.
> 
What's up for hpux?

> > That said for the moment IOVP_SHIF == PAGE_SHIFT so couldn't be the reason 
> > of the followings issues.
> 
> Right, there might be other caching issues still though.
> 
> > On my d380, I reach to re-iterate some stress test on scsi ncr53c720 and 
> > LASI 53c700 with a simple read/write loop like:
> > # while true ; do nice -n -3 tar -xspf linux-2.6.11-rc3-pa3.tar ; nice -n 
> > -3 rm -rf linux-2.6.11-rc3-pa3 ; date ; done
> 
> Sorry...same questions again:
> 	SMP or UP kernel?
Sorry UP only (one pb at a time)
[that said, my personal experiments with linux kernel (as well as hppa as
i386) don't make me expect a lot of smp stuff]

> 	Which kernel version?
> 
Currently 2.6.23-pa (kyle's pa git tree)
(but pb was there since the beginning of 2.6. IIRC I made only very few test
with 2.4)

> 
> > With a fs build on a disk connected to a 53c710 hba, with or without my bp 
> > patch, unfortunately I always got same errors after some loop's occurence:
> > scsi3: (3:0) phase mismatch at 01e8, phase IO CD MSG BSY REQ MSG IN
> >  scsi3: Bus Reset detected, executing command 10a304e0, slot 10a0864c, dsp 
> > 001681e8[01e8]
> >   failing command because of reset, slot 10a08520, cmnd 10a30720
> ...
> > [snip]
> >
> > (this same disk connected to same lasi 53c710 of a b180 i.e. without 
> > ccio-dma could loop severall days without showing any issue)
> 
> B180 is using uncached memory for it's control data and this has a
> very different CPU timing. It's hard to say if the problem is a
> memory ordering issue in zalon support or a bug in ccio driver.
> 
> sorry, can't be more precise than that.
> 
No pb, thanks any way for your attention,

    J.
> cheers,
> grant
> 
> > datazone - block = 1714387061, count = 1
> > [snip]
> >
> > With the original ccio-dma driver it occures after few occurence of the 
> > loop (about 5) but my patch only delay the pb to several houres (not 
> > useless work but not yet enough).
> >
> > Any way fs is corrupted and this bring me to next major issue with my c110 
> > (using same ncr53c720, lasi 53c710 and ccio-dma drivers as d380). This box 
> > was sleeping till about a year, so I removed additional ram kit of 512Mb 
> > for another usage and restored original ram of 64Mb, but internal boot disk 
> > stay unchanged connected to the ncr53c720 hba.
> > When I tried to reboot it some weeks ago with an existing & known working 
> > kernels (from the time system still own 512Mb; e.g. 2.6.8.1-pa7, 
> > 2.6.14-pa0, 2.6.19), it started to make a fsck obviously but this always 
> > sadely (fsck generating a fs corrution, well not directly but by border 
> > effect) ended by fs corruption too. That's only with the very old debian 
> > install kernel 2.4.17-32 that I reach to reboot this system to install 
> > latest 2.6.23-pa.orig and 2.6.23-pa+patch kernels. I could also reach to 
> > reboot this box with latest mentioned kernels but as soon as I launched an 
> > 'apt-get dist-upgrade' (after a update obviously) fs corruption occured 
> > again. I was inocently expecting that after some reboot, fsck and renew 
> > dist-upgrade, I would finaly recover a system operational like my d380. But 
> > I was wrong and after 2 or 3 reboot this box became not-bootable anymore 
> > (having lost too much critical files on the root fs :_().
> >
> > [Sade sade sade to me: in 10 years of linux, it's the very first time I 
> > lost a system because of sw issue :__(]
> >
> > All this story to say in summary, a d380 with 256Mb of ram works more or 
> > less fine (if I don't stress scsi disk) but a c110 with few 64Mb is not 
> > usable at all (with either original or patched 2.6.23-pa kernels)?
> >
> > I have the filing that some cache coherency (I/O, mem??) lakes somewhere 
> > but I didn't understand where/what is the code that do it now, so if you 
> > have some more time to pin point it to me, I would greatly appreciate.
> >
> > TIA,
> > 	J.
> >
> 
> 
---
Pack Scarlet One, ADSL 6 Mbps + Telephonie, a partir de EUR 29,95...
http://www.scarlet.be/

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Subject: Re: [parisc-linux] [patch 2/2] backport of sba sg list management
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Xref: news.gmane.org gmane.linux.ports.parisc:25482

On Mon, Nov 26, 2007 at 09:48:48AM +0100, Joel Soete wrote:
...
> > The 12-bits per page (4k pages) is hard wired for the PA1.1 machines.
> >
> Ok but paper spoke of pa7200 (pa1.1) _and_ pa8000 (afaik pa2.0), so aware of
> new cpu capability, but my understanding is that I/O page size seems to me it
> could be different then cpu page size and would be fixed to 4k because of
> "Block ID" size of 12bits?

J/K first released with PA1.1. PA8000 (PA2.0) was release Jan 2006
 (See http://www.openpa.net/pa-risc_processors.html#xu) and I think this
paper was originally targeted at PA1.1. The reference to (12-bit) is probably
just a "bug" in updating the paper for PA2.0.

> That said, paper only spoke of J/K model.
> C1xx and Dxxx are model which looks like J but some subtitle difference could
> exist.

C1XX is UP. Dxxx is _very_ similar to J (SMP and many of the same IO options).

> > Right. PA2.0 machines can support variable page sizes and parisc-linux
> > has "almost working" support bigger page sizes.
> >
> What's up for hpux?

Can you be more specific?
hpux definitely support variable page sizes (Look for "POP" == Performance
Optimized Pagesize in HP literature in mid-late 1990's). But HPUX ccio driver
continues to use 4K pages because the IO TLB can't change the page size
for each TLB entry like the CPU TLB can.  AFAIK U2/U-Turn both are fixed
on which page size the support. That would work fine with linux since we
just increase the base page size (e.g. 16k or 64k pages for IA64).

> > > # while true ; do nice -n -3 tar -xspf linux-2.6.11-rc3-pa3.tar ; nice -n
> > > -3 rm -rf linux-2.6.11-rc3-pa3 ; date ; done
> >
> > Sorry...same questions again:
> > 	SMP or UP kernel?
> Sorry UP only (one pb at a time)
> [that said, my personal experiments with linux kernel (as well as hppa as
> i386) don't make me expect a lot of smp stuff]
> 
> > 	Which kernel version?
> >
> Currently 2.6.23-pa (kyle's pa git tree)
> (but pb was there since the beginning of 2.6. IIRC I made only very few test
> with 2.4)

hrm. ok...I'll try the same on one of my a500's and see if that's
reproduceable there as well.

hth,
grant
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(resending as address for port list was incorrect)

v2.6.24-rc3-19-g2ffbb83 fails very early in the boot procedure.
2.6.23 compiled with similar config boots fine.

System is running Debian unstable; kernel was compiled using gcc 4.1.2.

Cheers,
Frans Pop

Boot messages for 2.6.24
------------------------
Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 
palo_kernel='
Selected kernel: /vmlinuz-2.6.24-rc3 from partition 2
Selected ramdisk: /initrd.img-2.6.24-rc3 from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 4648960 mediaptr 0x1000
Segment 1 load 005c4000 size 689216 mediaptr 0x470000
Loading ramdisk 3078237 bytes @ 3fcff000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.24-rc3 (root@treebeard) (gcc version 4.1.3 20071019 
(prerelease) (D7
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005d10 00000491 00000000 00000002 778fe5fc 100000f0 00000008 
000000b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x3
model 9000/785/J5600
Total Memory: 2048 MB
initrd: 7fcff000-7ffee85d
initrd: reserving 3fcff000-3ffee85d (mem_max 80000000)
LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
SMP: bootstrap CPU ID is 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 517120
Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 
palo_kernel=2/vml3
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Memory: 2051840k/2097152k available (3103k kernel code, 44736k reserved, 
1388k data, )
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x00000000c0000000   (2048 MB)
      .init : 0x0000000040624000 - 0x000000004066d000   ( 292 kB)
      .data : 0x0000000040407fb0 - 0x0000000040563000   (1388 kB)
      .text : 0x0000000040100000 - 0x0000000040407fb0   (3103 kB)
<system hangs and needs power cycle>


Diff between 2.6.23 and 2.6.24 config
-------------------------------------
$ diff -u /boot/config-2.6.23 /boot/config-2.6.24-rc3 | grep "^[+-][^#]"
--- /boot/config-2.6.23 2007-11-27 08:01:51.000000000 +0000
+++ /boot/config-2.6.24-rc3     2007-11-27 08:50:10.000000000 +0000
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+CONFIG_BLOCK_COMPAT=y
+CONFIG_PCI_LEGACY=y
+CONFIG_INET_LRO=m
+CONFIG_NETFILTER_XT_MATCH_TIME=m
+CONFIG_NET_ACT_NAT=m
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_IDE_ARCH_OBSOLETE_INIT=y
+CONFIG_SCSI_SRP_ATTRS=m
+CONFIG_FIXED_MII_AMNT=1
+CONFIG_SSB_POSSIBLE=y
+CONFIG_SSB=m
+CONFIG_SSB_PCIHOST_POSSIBLE=y
+CONFIG_SSB_PCIHOST=y
+CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
+CONFIG_SSB_DRIVER_PCICORE=y
+CONFIG_SND_AC97_POWER_SAVE_DEFAULT=0
+CONFIG_PRINT_QUOTA_WARNING=y
-CONFIG_RAMFS=y
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_INSTRUMENTATION=y
+CONFIG_ENABLE_WARN_DEPRECATED=y


Full 2.6.24 config
------------------

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#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.24-rc3
# Mon Nov 26 18:45:54 2007
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_TIME_LOW_RES=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_IRQ_PER_CPU=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
# CONFIG_TASKSTATS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
CONFIG_AUDIT=y
CONFIG_IKCONFIG=y
# CONFIG_IKCONFIG_PROC is not set
CONFIG_LOG_BUF_SHIFT=15
# CONFIG_CGROUPS is not set
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_FAIR_USER_SCHED=y
# CONFIG_FAIR_CGROUP_SCHED is not set
CONFIG_SYSFS_DEPRECATED=y
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
# CONFIG_EMBEDDED is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_BLK_DEV_BSG is not set
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_PREEMPT_BKL is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
# CONFIG_SPARSEMEM_STATIC is not set
# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_RESOURCES_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_COMPAT=y
CONFIG_NR_CPUS=8

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
CONFIG_GSC=y
CONFIG_HPPB=y
CONFIG_IOMMU_CCIO=y
CONFIG_GSC_LASI=y
CONFIG_GSC_WAX=y
CONFIG_EISA=y
CONFIG_EISA_NAMES=y
CONFIG_ISA=y
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_PCI_LEGACY=y
# CONFIG_PCI_DEBUG is not set
CONFIG_GSC_DINO=y
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=m

#
# Networking
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=m
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=y
CONFIG_TCP_CONG_CUBIC=m
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
CONFIG_DEFAULT_BIC=y
# CONFIG_DEFAULT_CUBIC is not set
# CONFIG_DEFAULT_HTCP is not set
# CONFIG_DEFAULT_VEGAS is not set
# CONFIG_DEFAULT_WESTWOOD is not set
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="bic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IP_VS=m
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12

#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y

#
# IPVS scheduler
#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m

#
# IPVS application helper
#
CONFIG_IP_VS_FTP=m
CONFIG_IPV6=m
CONFIG_IPV6_PRIVACY=y
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
# CONFIG_IPV6_MIP6 is not set
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_NETLABEL is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_BRIDGE_NETFILTER=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK_ENABLED=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CT_ACCT=y
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CT_PROTO_GRE=m
CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NETFILTER_XTABLES=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m

#
# IP: Netfilter Configuration
#
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_IPRANGE=m
CONFIG_IP_NF_MATCH_TOS=m
CONFIG_IP_NF_MATCH_RECENT=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_MATCH_OWNER=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_SAME=m
CONFIG_NF_NAT_SNMP_BASIC=m
CONFIG_NF_NAT_PROTO_GRE=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_PPTP=m
CONFIG_NF_NAT_H323=m
CONFIG_NF_NAT_SIP=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_TOS=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m

#
# IPv6: Netfilter Configuration (EXPERIMENTAL)
#
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_OWNER=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_TARGET_HL=m
CONFIG_IP6_NF_RAW=m

#
# Bridge: Netfilter Configuration
#
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_ULOG=m
CONFIG_IP_DCCP=m
CONFIG_INET_DCCP_DIAG=m
CONFIG_IP_DCCP_ACKVEC=y

#
# DCCP CCIDs Configuration (EXPERIMENTAL)
#
CONFIG_IP_DCCP_CCID2=m
# CONFIG_IP_DCCP_CCID2_DEBUG is not set
CONFIG_IP_DCCP_CCID3=m
CONFIG_IP_DCCP_TFRC_LIB=m
# CONFIG_IP_DCCP_CCID3_DEBUG is not set
CONFIG_IP_DCCP_CCID3_RTO=100

#
# DCCP Kernel Hacking
#
# CONFIG_IP_DCCP_DEBUG is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_MSG is not set
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_HMAC_NONE is not set
# CONFIG_SCTP_HMAC_SHA1 is not set
CONFIG_SCTP_HMAC_MD5=y
CONFIG_TIPC=m
CONFIG_TIPC_ADVANCED=y
CONFIG_TIPC_ZONES=3
CONFIG_TIPC_CLUSTERS=1
CONFIG_TIPC_NODES=255
CONFIG_TIPC_SLAVE_NODES=0
CONFIG_TIPC_PORTS=8191
CONFIG_TIPC_LOG=0
# CONFIG_TIPC_DEBUG is not set
# CONFIG_ATM is not set
CONFIG_BRIDGE=m
CONFIG_VLAN_8021Q=m
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_RR=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_INGRESS=m

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_ROUTE=y
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_IPT=m
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
# CONFIG_NET_CLS_POLICE is not set
CONFIG_NET_CLS_IND=y
CONFIG_NET_SCH_FIFO=y

#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set

#
# Wireless
#
# CONFIG_CFG80211 is not set
# CONFIG_WIRELESS_EXT is not set
# CONFIG_MAC80211 is not set
# CONFIG_IEEE80211 is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=m
# CONFIG_MTD is not set
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_SERIAL=m
CONFIG_PARPORT_PC_FIFO=y
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_GSC=y
CONFIG_PARPORT_AX88796=m
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
# CONFIG_PNP is not set
CONFIG_BLK_DEV=y
# CONFIG_PARIDE is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
CONFIG_ATA_OVER_ETH=m
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_EEPROM_93CX6 is not set
CONFIG_SGI_IOC4=m
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
CONFIG_IDE=m
CONFIG_BLK_DEV_IDE=m

#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_BLK_DEV_IDEDISK=m
# CONFIG_IDEDISK_MULTI_MODE is not set
CONFIG_BLK_DEV_IDECD=m
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_BLK_DEV_IDESCSI is not set
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y

#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=m
# CONFIG_BLK_DEV_PLATFORM is not set

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=m
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
# CONFIG_IDE_ARM is not set

#
# Other IDE chipsets support
#

#
# Note: most of these also require special kernel boot parameters
#
# CONFIG_BLK_DEV_4DRIVES is not set
# CONFIG_BLK_DEV_ALI14XX is not set
# CONFIG_BLK_DEV_DTC2278 is not set
# CONFIG_BLK_DEV_HT6560B is not set
# CONFIG_BLK_DEV_QD65XX is not set
# CONFIG_BLK_DEV_UMC8672 is not set
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDE_ARCH_OBSOLETE_INIT=y
# CONFIG_BLK_DEV_HD is not set

#
# SCSI device support
#
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=m
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=m
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
# CONFIG_SCSI_FC_TGT_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=y
# CONFIG_SCSI_SAS_LIBSAS_DEBUG is not set
CONFIG_SCSI_SRP_ATTRS=m
# CONFIG_SCSI_SRP_TGT_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
CONFIG_SCSI_AIC94XX=y
# CONFIG_AIC94XX_DEBUG is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_LASI700 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_ZALON is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_DEBUG is not set
CONFIG_SCSI_SRP=m
# CONFIG_ATA is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
CONFIG_MD_RAID5_RESHAPE=y
CONFIG_MD_MULTIPATH=m
CONFIG_MD_FAULTY=m
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_MULTIPATH_EMC=m
# CONFIG_DM_MULTIPATH_RDAC is not set
# CONFIG_DM_MULTIPATH_HP is not set
CONFIG_DM_DELAY=m
# CONFIG_DM_UEVENT is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
CONFIG_I2O=m
CONFIG_I2O_LCT_NOTIFY_ON_CHANGES=y
CONFIG_I2O_EXT_ADAPTEC=y
CONFIG_I2O_EXT_ADAPTEC_DMA64=y
CONFIG_I2O_CONFIG=m
CONFIG_I2O_CONFIG_OLD_IOCTL=y
CONFIG_I2O_BUS=m
CONFIG_I2O_BLOCK=m
CONFIG_I2O_SCSI=m
CONFIG_I2O_PROC=m
CONFIG_NETDEVICES=y
# CONFIG_NETDEVICES_MULTIQUEUE is not set
CONFIG_IFB=m
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
# CONFIG_VETH is not set
# CONFIG_IP1000 is not set
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
# CONFIG_ICPLUS_PHY is not set
CONFIG_FIXED_PHY=m
# CONFIG_FIXED_MII_10_FDX is not set
# CONFIG_FIXED_MII_100_FDX is not set
# CONFIG_FIXED_MII_1000_FDX is not set
CONFIG_FIXED_MII_AMNT=1
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
# CONFIG_LASI_82596 is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=m
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
CONFIG_TULIP_NAPI=y
CONFIG_TULIP_NAPI_HW_MITIGATION=y
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_NET_PCI is not set
# CONFIG_B44 is not set
# CONFIG_NET_POCKET is not set
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set

#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 is not set

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_PLIP=m
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
# CONFIG_PPPOL2TP is not set
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLHC=m
CONFIG_SLIP_SMART=y
# CONFIG_SLIP_MODE_SLIP6 is not set
# CONFIG_NET_FC is not set
CONFIG_SHAPER=m
CONFIG_NETCONSOLE=m
# CONFIG_NETCONSOLE_DYNAMIC is not set
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=m
# CONFIG_INPUT_POLLDEV is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
CONFIG_KEYBOARD_STOWAWAY=m
CONFIG_KEYBOARD_HIL_OLD=m
CONFIG_KEYBOARD_HIL=m
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=m
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_INPORT is not set
# CONFIG_MOUSE_LOGIBM is not set
# CONFIG_MOUSE_PC110PAD is not set
# CONFIG_MOUSE_VSXXXAA is not set
CONFIG_MOUSE_HIL=m
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
CONFIG_INPUT_ATI_REMOTE=m
CONFIG_INPUT_ATI_REMOTE2=m
CONFIG_INPUT_KEYSPAN_REMOTE=m
CONFIG_INPUT_POWERMATE=m
CONFIG_INPUT_YEALINK=m
# CONFIG_INPUT_UINPUT is not set
CONFIG_HP_SDC_RTC=m

#
# Hardware I/O ports
#
CONFIG_SERIO=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_PARKBD is not set
CONFIG_SERIO_GSCPS2=y
CONFIG_HP_SDC=m
CONFIG_HIL_MLC=m
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
# CONFIG_SERIAL_NONSTANDARD is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=16
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_FOURPORT=m
CONFIG_SERIAL_8250_ACCENT=m
CONFIG_SERIAL_8250_BOCA=m
# CONFIG_SERIAL_8250_EXAR_ST16C554 is not set
CONFIG_SERIAL_8250_HUB6=m
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_MUX=y
CONFIG_SERIAL_MUX_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
# CONFIG_TIPAR is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
CONFIG_GEN_RTC=y
# CONFIG_GEN_RTC_X is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set

#
# SPI support
#
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y

#
# SPI Master Controller Drivers
#
CONFIG_SPI_BITBANG=m
CONFIG_SPI_BUTTERFLY=m
# CONFIG_SPI_LM70_LLP is not set

#
# SPI Protocol Masters
#
CONFIG_SPI_AT25=m
# CONFIG_SPI_SPIDEV is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=m
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_IT87 is not set
CONFIG_SENSORS_LM70=m
# CONFIG_SENSORS_PC87360 is not set
CONFIG_SENSORS_PC87427=m
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_VIA686A is not set
CONFIG_SENSORS_VT1211=m
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
# CONFIG_WATCHDOG is not set

#
# Sonics Silicon Backplane
#
CONFIG_SSB_POSSIBLE=y
CONFIG_SSB=m
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
# CONFIG_SSB_DEBUG is not set
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y

#
# Multifunction device drivers
#
# CONFIG_MFD_SM501 is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
# CONFIG_DAB is not set

#
# Graphics support
#
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
# CONFIG_FB_DDC is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_SYS_FOPS is not set
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_STI=y
# CONFIG_FB_UVESA is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_VIRTUAL is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=m
# CONFIG_BACKLIGHT_CORGI is not set

#
# Display device support
#
CONFIG_DISPLAY_SUPPORT=m

#
# Display hardware drivers
#

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_STI_CONSOLE=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_LOGO_PARISC_CLUT224=y

#
# Sound
#
CONFIG_SOUND=m

#
# Advanced Linux Sound Architecture
#
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_SEQUENCER=m
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set

#
# Generic devices
#
CONFIG_SND_MPU401_UART=m
CONFIG_SND_OPL3_LIB=m
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DUMMY=m
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
CONFIG_SND_MTS64=m
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
CONFIG_SND_PORTMAN2X4=m

#
# PCI devices
#
CONFIG_SND_AD1889=m
CONFIG_SND_ALS300=m
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
CONFIG_SND_DARLA20=m
CONFIG_SND_GINA20=m
CONFIG_SND_LAYLA20=m
CONFIG_SND_DARLA24=m
CONFIG_SND_GINA24=m
CONFIG_SND_LAYLA24=m
CONFIG_SND_MONA=m
CONFIG_SND_MIA=m
CONFIG_SND_ECHO3G=m
CONFIG_SND_INDIGO=m
CONFIG_SND_INDIGOIO=m
CONFIG_SND_INDIGODJ=m
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDA_INTEL is not set
# CONFIG_SND_HDSP is not set
CONFIG_SND_HDSPM=m
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
CONFIG_SND_PCXHR=m
CONFIG_SND_RIPTIDE=m
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
CONFIG_SND_AC97_POWER_SAVE=y
CONFIG_SND_AC97_POWER_SAVE_DEFAULT=0

#
# SPI devices
#

#
# USB devices
#
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_CAIAQ is not set

#
# GSC devices
#
# CONFIG_SND_HARMONY is not set

#
# System on Chip audio support
#
# CONFIG_SND_SOC is not set

#
# SoC Audio support for SuperH
#

#
# Open Sound System
#
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
CONFIG_HID_SUPPORT=y
CONFIG_HID=m
# CONFIG_HID_DEBUG is not set
# CONFIG_HIDRAW is not set

#
# USB Input Devices
#
CONFIG_USB_HID=m
# CONFIG_USB_HIDINPUT_POWERBOOK is not set
# CONFIG_HID_FF is not set
CONFIG_USB_HIDDEV=y

#
# USB HID Boot Protocol drivers
#
CONFIG_USB_KBD=m
CONFIG_USB_MOUSE=m
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=m
CONFIG_USB_DEBUG=y

#
# Miscellaneous USB options
#
# CONFIG_USB_DEVICEFS is not set
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set

#
# USB Host Controller Drivers
#
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_SPLIT_ISO is not set
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
CONFIG_USB_ISP116X_HCD=m
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_UHCI_HCD is not set
CONFIG_USB_U132_HCD=m
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set

#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
#

#
# may also be needed; see USB_STORAGE Help for more information
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
CONFIG_USB_STORAGE_ALAUDA=y
CONFIG_USB_STORAGE_ONETOUCH=y
CONFIG_USB_STORAGE_KARMA=y
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
CONFIG_USB_MON=y

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set

#
# USB Serial Converter support
#
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_AIRCABLE=m
CONFIG_USB_SERIAL_AIRPRIME=m
CONFIG_USB_SERIAL_ARK3116=m
CONFIG_USB_SERIAL_BELKIN=m
# CONFIG_USB_SERIAL_CH341 is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
CONFIG_USB_SERIAL_CP2101=m
CONFIG_USB_SERIAL_CYPRESS_M8=m
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_FUNSOFT=m
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
CONFIG_USB_SERIAL_IR=m
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_EDGEPORT_TI is not set
CONFIG_USB_SERIAL_GARMIN=m
CONFIG_USB_SERIAL_IPW=m
CONFIG_USB_SERIAL_KEYSPAN_PDA=m
# CONFIG_USB_SERIAL_KEYSPAN is not set
CONFIG_USB_SERIAL_KLSI=m
CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
CONFIG_USB_SERIAL_MOS7720=m
CONFIG_USB_SERIAL_MOS7840=m
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=m
# CONFIG_USB_SERIAL_OTI6858 is not set
CONFIG_USB_SERIAL_HP4X=m
CONFIG_USB_SERIAL_SAFE=m
# CONFIG_USB_SERIAL_SAFE_PADDED is not set
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
# CONFIG_USB_SERIAL_TI is not set
CONFIG_USB_SERIAL_CYBERJACK=m
CONFIG_USB_SERIAL_XIRCOM=m
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_SERIAL_OMNINET=m
CONFIG_USB_SERIAL_DEBUG=m
CONFIG_USB_EZUSB=y

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
CONFIG_USB_ADUTUX=m
# CONFIG_USB_AUERSWALD is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
CONFIG_USB_BERRY_CHARGE=m
# CONFIG_USB_LED is not set
CONFIG_USB_CYPRESS_CY7C63=m
# CONFIG_USB_CYTHERM is not set
CONFIG_USB_PHIDGET=m
# CONFIG_USB_PHIDGETKIT is not set
CONFIG_USB_PHIDGETMOTORCONTROL=m
# CONFIG_USB_PHIDGETSERVO is not set
# CONFIG_USB_IDMOUSE is not set
CONFIG_USB_FTDI_ELAN=m
CONFIG_USB_APPLEDISPLAY=m
# CONFIG_USB_SISUSBVGA is not set
CONFIG_USB_LD=m
CONFIG_USB_TRANCEVIBRATOR=m
CONFIG_USB_IOWARRIOR=m

#
# USB DSL modem support
#

#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
# CONFIG_MMC is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=m
CONFIG_RTC_CLASS=m

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#
CONFIG_RTC_DRV_RS5C348=m
CONFIG_RTC_DRV_MAX6902=m

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_DS1553=m
# CONFIG_RTC_DRV_STK17TA8 is not set
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_M48T86=m
# CONFIG_RTC_DRV_M48T59 is not set
CONFIG_RTC_DRV_V3020=m

#
# on-CPU RTC drivers
#
# CONFIG_AUXDISPLAY is not set

#
# Userspace I/O
#
# CONFIG_UIO is not set

#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=m
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
# CONFIG_EXT4DEV_FS is not set
CONFIG_JBD=m
# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_MINIX_FS is not set
CONFIG_ROMFS_FS=m
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_QUOTA=y
# CONFIG_QUOTA_NETLINK_INTERFACE is not set
CONFIG_PRINT_QUOTA_WARNING=y
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
CONFIG_DNOTIFY=y
CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_GENERIC_ACL=y

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_NTFS_FS=m
# CONFIG_NTFS_DEBUG is not set
CONFIG_NTFS_RW=y

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=m

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
CONFIG_ECRYPT_FS=m
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_CRAMFS=y
CONFIG_VXFS_FS=m
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_NFS_DIRECTIO=y
# CONFIG_NFSD is not set
CONFIG_ROOT_NFS=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
CONFIG_SUNRPC_BIND34=y
CONFIG_RPCSEC_GSS_KRB5=y
CONFIG_RPCSEC_GSS_SPKM3=m
CONFIG_SMB_FS=m
CONFIG_SMB_NLS_DEFAULT=y
CONFIG_SMB_NLS_REMOTE="cp437"
CONFIG_CIFS=m
# CONFIG_CIFS_STATS is not set
# CONFIG_CIFS_WEAK_PW_HASH is not set
# CONFIG_CIFS_XATTR is not set
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_EXPERIMENTAL is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
CONFIG_DLM=m
CONFIG_DLM_DEBUG=y
CONFIG_INSTRUMENTATION=y
CONFIG_PROFILING=y
CONFIG_OPROFILE=m
# CONFIG_MARKERS is not set

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_DETECT_SOFTLOCKUP is not set
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_FORCED_INLINING is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_RWLOCK is not set
# CONFIG_DEBUG_RODATA is not set

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
CONFIG_SECURITY=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
CONFIG_SECURITY_CAPABILITIES=y
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=0
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
# CONFIG_SECURITY_SELINUX_ENABLE_SECMARK_DEFAULT is not set
# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_CRYPTO=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_LRW=m
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_ANUBIS=m
# CONFIG_CRYPTO_SEED is not set
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_TEST=m
# CONFIG_CRYPTO_AUTHENC is not set
CONFIG_CRYPTO_HW=y

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=m
CONFIG_AUDIT_GENERIC=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y

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Xref: news.gmane.org gmane.linux.ports.parisc:25484

> On Mon, Nov 26, 2007 at 09:48:48AM +0100, Joel Soete wrote:
> ...
> > > The 12-bits per page (4k pages) is hard wired for the PA1.1 machines.
> > >
> > Ok but paper spoke of pa7200 (pa1.1) _and_ pa8000 (afaik pa2.0), so aware of
> > new cpu capability, but my understanding is that I/O page size seems to me it
> > could be different then cpu page size and would be fixed to 4k because of
> > "Block ID" size of 12bits?
> 
> J/K first released with PA1.1. PA8000 (PA2.0) was release Jan 2006
>  (See http://www.openpa.net/pa-risc_processors.html#xu) and I think this
> paper was originally targeted at PA1.1. The reference to (12-bit) is probably
> just a "bug" in updating the paper for PA2.0.
> 
grr even thought I read well:
"[snip]
Hardware Implications
Cache memory is defined as a small, high-speed block of memory located close
to the processor. On the HP PA 7200 and PA8000 processors, a portion of the
software virtual address (called the virtual index) is used as the cache lookup.
[snip]"

That's what confusing me, sorry.

> > That said, paper only spoke of J/K model.
> > C1xx and Dxxx are model which looks like J but some subtitle difference could
> > exist.
> 
> C1XX is UP. Dxxx is _very_ similar to J (SMP and many of the same IO options).
> 
> > > Right. PA2.0 machines can support variable page sizes and parisc-linux
> > > has "almost working" support bigger page sizes.
> > >
> > What's up for hpux?
> 
> Can you be more specific?
> hpux definitely support variable page sizes 

Exactely what am I curious about ;-)

>(Look for "POP" == Performance
> Optimized Pagesize in HP literature in mid-late 1990's).
Ok I will have a look.

> But HPUX ccio driver
> continues to use 4K pages because the IO TLB can't change the page size
> for each TLB entry like the CPU TLB can.
Nice to know ;-)

>  AFAIK U2/U-Turn both are fixed
> on which page size the support. That would work fine with linux since we
> just increase the base page size (e.g. 16k or 64k pages for IA64).
> 
Well, reading further, even thought it seems to be 'programmable':
"[snip]
A second feature of this scheme is that it helps limit the overhead of the I/O
page directory. Recall that the I/O page directory contains all active address
translations and must be memory-resident. I/O page directory size is equal to
the size of one entry times 2^k, where k is the number of chain ID bits plus
the number of block ID bits. The division between the chain ID and the block
ID is programmable, as is the total number of bits (k), so software can reduce
the memory overhead of the I/O page directory for systems with smaller I/O
subsystems if we guarantee that the leading address bits are zero for these
smaller systems.
[snip]"

That said I discover a difference between my d380 and c110 config:
for c110 no CONFIG_EISA support,
for d380 CONFIG_EISA yes

which is in fact a hack like mentioned in comments:
/*
** DMA "Page Type" and Hints
[snip]
** o STOP_MOST is needed for atomicity across cachelines.
**   Apparently only "some EISA devices" need this.
**   Using CONFIG_ISA is hack. Only the IOA with EISA under it needs
**   to use this hint iff the EISA devices needs this feature.
**   According to the U2 ERS, STOP_MOST enabled pages hurt performance.
[snip]
**
** FIXME: the default hints need to be per GSC device - not global.
**
** HP-UX dorks: linux device driver programming model is totally different
**    than HP-UX's. HP-UX always sets HINT_PREFETCH since it's drivers
**    do special things to work on non-coherent platforms...linux has to
**    be much more careful with this.
*/
#define IOPDIR_VALID    0x01UL
#define HINT_SAFE_DMA   0x02UL  /* used for pci_alloc_consistent() pages */
#ifdef CONFIG_EISA
#define HINT_STOP_MOST  0x04UL  /* LSL support */
#else
#define HINT_STOP_MOST  0x00UL  /* only needed for "some EISA devices" */
#endif
#define HINT_UDPATE_ENB 0x08UL  /* not used/supported by U2 */
#define HINT_PREFETCH   0x10UL  /* for outbound pages which are not SAFE */
[snip]"

So make a difference in HINT_STOP_MOST value.
Anyway, may be could it help to delay also a bit issue on c110 as on d380 (may
be enough to re-install the system?)

That siad, the above mentioned paper spoke about "Atomic or locked mode": is
it this HINT_STOP_MOST which enable this mode?


> > > > # while true ; do nice -n -3 tar -xspf linux-2.6.11-rc3-pa3.tar ; nice -n
> > > > -3 rm -rf linux-2.6.11-rc3-pa3 ; date ; done
> > >
> > > Sorry...same questions again:
> > > 	SMP or UP kernel?
> > Sorry UP only (one pb at a time)
> > [that said, my personal experiments with linux kernel (as well as hppa as
> > i386) don't make me expect a lot of smp stuff]
> > 
> > > 	Which kernel version?
> > >
> > Currently 2.6.23-pa (kyle's pa git tree)
> > (but pb was there since the beginning of 2.6. IIRC I made only very few test
> > with 2.4)
> 
> hrm. ok...I'll try the same on one of my a500's and see if that's
> reproduceable there as well.
> 
What's your idea (afaik a500 didn't use ccio nor ncr53c720)?

Thanks again,
    J.
> hth,
> grant
> 
> 
---
Pack Scarlet One, ADSL 6 Mbps + Telephonie, a partir de EUR 29,95...
http://www.scarlet.be/

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Xref: news.gmane.org gmane.linux.ports.parisc:25485

On Tue, Nov 27, 2007 at 01:48:32PM +0100, Joel Soete wrote:
> grr even thought I read well:
> "[snip]
> Hardware Implications
> Cache memory is defined as a small, high-speed block of memory located close
> to the processor. On the HP PA 7200 and PA8000 processors, a portion of the
> software virtual address (called the virtual index) is used as the cache lookup.
> [snip]"
> 
> That's what confusing me, sorry.

You need to read about "VIVT" caches (Virtual Indexed, Virtual Tagged).
The "Virtual Index" bits have to be provided by any cache coherent traffic
in order to be cache coherent. That's how the caches know _where_ in the
cache to find potential hits for a given cacheline.

...
> >  AFAIK U2/U-Turn both are fixed
> > on which page size the support. That would work fine with linux since we
> > just increase the base page size (e.g. 16k or 64k pages for IA64).
> >
> Well, reading further, even thought it seems to be 'programmable':
> "[snip]
> A second feature of this scheme is that it helps limit the overhead of the I/O
> page directory. Recall that the I/O page directory contains all active address
> translations and must be memory-resident. I/O page directory size is equal to
> the size of one entry times 2^k, where k is the number of chain ID bits plus
> the number of block ID bits. The division between the chain ID and the block
> ID is programmable, as is the total number of bits (k), so software can reduce
> the memory overhead of the I/O page directory for systems with smaller I/O
> subsystems if we guarantee that the leading address bits are zero for these
> smaller systems.
> [snip]"
> 
> That said I discover a difference between my d380 and c110 config:
> for c110 no CONFIG_EISA support,
> for d380 CONFIG_EISA yes

EISA introduces a different IOMMU that we haven't written any code for.
We need the "WAX ERS" IIRC.
parisc-linux currently does not support DMA by EISA devices.

...
> So make a difference in HINT_STOP_MOST value.
> Anyway, may be could it help to delay also a bit issue on c110 as on d380 (may
> be enough to re-install the system?)

You can try it and see if it helps.
I don't have U2/U-Turn ERS anymore and thus can not review
the original source of information.

> That siad, the above mentioned paper spoke about "Atomic or locked mode": is
> it this HINT_STOP_MOST which enable this mode?

Sorry - I don't know. My guess is the ERS probably has that info.


...
> What's your idea (afaik a500 didn't use ccio nor ncr53c720)?

You mean "Why test on a500 given A500 doesn't use ccio"?
Just to make sure it's not a generic problem.

In general, I was expecting James Bottomley to have seen issues
with ccio when testing on his C360 (in the past, not recently).

hth,
grant
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Xref: news.gmane.org gmane.linux.ports.parisc:25486

> On Tue, Nov 27, 2007 at 01:48:32PM +0100, Joel Soete wrote:
> > grr even thought I read well:
> > "[snip]
> > Hardware Implications
> > Cache memory is defined as a small, high-speed block of memory located close
> > to the processor. On the HP PA 7200 and PA8000 processors, a portion of the
> > software virtual address (called the virtual index) is used as the cache
lookup.
> > [snip]"
> > 
> > That's what confusing me, sorry.
> 
> You need to read about "VIVT" caches (Virtual Indexed, Virtual Tagged).
> The "Virtual Index" bits have to be provided by any cache coherent traffic
> in order to be cache coherent. That's how the caches know _where_ in the
> cache to find potential hits for a given cacheline.
> 
For sure I need more reading but imho this paper is already clear on subject:
my understanding (in short terms) is that cpu cache entry should be the same
virtual address as DMA cache else it would need additional stuff to check
physical address, right?

> ...
> > >  AFAIK U2/U-Turn both are fixed
> > > on which page size the support. That would work fine with linux since we
> > > just increase the base page size (e.g. 16k or 64k pages for IA64).
> > >
> > Well, reading further, even thought it seems to be 'programmable':
> > "[snip]
> > A second feature of this scheme is that it helps limit the overhead of the I/O
> > page directory. Recall that the I/O page directory contains all active address
> > translations and must be memory-resident. I/O page directory size is equal to
> > the size of one entry times 2^k, where k is the number of chain ID bits plus
> > the number of block ID bits. The division between the chain ID and the block
> > ID is programmable, as is the total number of bits (k), so software can reduce
> > the memory overhead of the I/O page directory for systems with smaller I/O
> > subsystems if we guarantee that the leading address bits are zero for these
> > smaller systems.
> > [snip]"
> > 
> > That said I discover a difference between my d380 and c110 config:
> > for c110 no CONFIG_EISA support,
> > for d380 CONFIG_EISA yes
> 
> EISA introduces a different IOMMU that we haven't written any code for.
> We need the "WAX ERS" IIRC.
> parisc-linux currently does not support DMA by EISA devices.
> 
That's for this last reason that I disable it in the config of my c110 (but I
don't remember why I didn't reproduce it on the d380?)
 
> ...
> > So make a difference in HINT_STOP_MOST value.
> > Anyway, may be could it help to delay also a bit issue on c110 as on d380 (may
> > be enough to re-install the system?)
> 
> You can try it and see if it helps.
> I don't have U2/U-Turn ERS anymore and thus can not review
> the original source of information.
> 
The hp engineer who help us to maintain our park of hp9000 made a few effort
to look for ERS doc but without success.

> > That siad, the above mentioned paper spoke about "Atomic or locked mode": is
> > it this HINT_STOP_MOST which enable this mode?
> 
> Sorry - I don't know. My guess is the ERS probably has that info.
> 
No worry, I just continue to play with this driver because this is the only
type of box on which I can still play p-l :-)

> 
> ...
> > What's your idea (afaik a500 didn't use ccio nor ncr53c720)?
> 
> You mean "Why test on a500 given A500 doesn't use ccio"?
> Just to make sure it's not a generic problem.
> 
I guess but would like to be sure that well undertood ;-)

> In general, I was expecting James Bottomley to have seen issues
> with ccio when testing on his C360 (in the past, not recently).
> 
I remember to have some few feedback from jejb but don't remember if he could
reproduce this test?

> hth,
> grant
> 
> 
In the mean time I will continue my reading, ...

Many thanks for your attention,
    J.
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From - Thu Nov 08 21:37:08 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Dave Land RIP
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Dear PA-RISC developers,

I was informed two days ago, that Dave Land passed away on Friday 21st November.
This made me very sad, since Dave had become a personal friend of mine since last year.
Dave gave me login to his PA-RISC servers to fix the SMP-boot problems and afterwards hosted our first debian buildd servers.
In our personal email exchanges I experienced Dave as a nice and friendly person.
Dave, you will be missed.

Helge
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Subject: [PATCH] arch: uapi: asm: mman.h: Support MADV_FREE for madvise()
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At present, kernel supports madvise(MADV_FREE), so can benefit to all
related architectures (can grep MADV_WILLNEED or MADV_REMOVE in "arch/"
to know about all related architectures).

The related git commit: "4fb10ba mm: support madvise(MADV_FREE)".

The related error (with allmodconfig under parisc):

    CC      mm/madvise.o
  mm/madvise.c: In function 'madvise_need_mmap_write':
  mm/madvise.c:42:7: error: 'MADV_FREE' undeclared (first use in this function)
    case MADV_FREE:
       ^
  mm/madvise.c:42:7: note: each undeclared identifier is reported only once for each function it appears in
  mm/madvise.c: In function 'madvise_vma':
  mm/madvise.c:534:7: error: 'MADV_FREE' undeclared (first use in this function)
    case MADV_FREE:
       ^
  mm/madvise.c: In function 'madvise_behavior_valid':
  mm/madvise.c:561:7: error: 'MADV_FREE' undeclared (first use in this function)
    case MADV_FREE:
       ^
  make[1]: *** [mm/madvise.o] Error 1
  make: *** [mm] Error 2

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
---
 arch/alpha/include/uapi/asm/mman.h  | 1 +
 arch/mips/include/uapi/asm/mman.h   | 1 +
 arch/parisc/include/uapi/asm/mman.h | 1 +
 arch/xtensa/include/uapi/asm/mman.h | 1 +
 4 files changed, 4 insertions(+)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..836fbd4 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -44,6 +44,7 @@
 #define MADV_WILLNEED	3		/* will need these pages */
 #define	MADV_SPACEAVAIL	5		/* ensure resources are available */
 #define MADV_DONTNEED	6		/* don't need these pages */
+#define MADV_FREE	7		/* free pages only if memory pressure */
 
 /* common/generic parameters */
 #define MADV_REMOVE	9		/* remove these pages & resources */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..106e741 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -67,6 +67,7 @@
 #define MADV_SEQUENTIAL 2		/* expect sequential page references */
 #define MADV_WILLNEED	3		/* will need these pages */
 #define MADV_DONTNEED	4		/* don't need these pages */
+#define MADV_FREE	5		/* free pages only if memory pressure */
 
 /* common parameters: try to keep these consistent across architectures */
 #define MADV_REMOVE	9		/* remove these pages & resources */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..6cb8db7 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -40,6 +40,7 @@
 #define MADV_SPACEAVAIL 5               /* insure that resources are reserved */
 #define MADV_VPS_PURGE  6               /* Purge pages from VM page cache */
 #define MADV_VPS_INHERIT 7              /* Inherit parents page size */
+#define MADV_FREE	8		/* free pages only if memory pressure */
 
 /* common/generic parameters */
 #define MADV_REMOVE	9		/* remove these pages & resources */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..1b19f25 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -80,6 +80,7 @@
 #define MADV_SEQUENTIAL	2		/* expect sequential page references */
 #define MADV_WILLNEED	3		/* will need these pages */
 #define MADV_DONTNEED	4		/* don't need these pages */
+#define MADV_FREE	5		/* free pages only if memory pressure */
 
 /* common parameters: try to keep these consistent across architectures */
 #define MADV_REMOVE	9		/* remove these pages & resources */
-- 
1.9.3
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From - Thu Nov 08 21:37:08 2018
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Subject: [PATCH] arch: uapi: asm: mman.h: Support MADV_FREE for madvise()
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/25489>

At present, kernel supports madvise(MADV_FREE), so can benefit to all
related architectures (can grep MADV_WILLNEED or MADV_REMOVE in "arch/"
to know about all related architectures).

The related git commit: "4fb10ba mm: support madvise(MADV_FREE)".

The related error (with allmodconfig under parisc):

    CC      mm/madvise.o
  mm/madvise.c: In function 'madvise_need_mmap_write':
  mm/madvise.c:42:7: error: 'MADV_FREE' undeclared (first use in this function)
    case MADV_FREE:
       ^
  mm/madvise.c:42:7: note: each undeclared identifier is reported only once for each function it appears in
  mm/madvise.c: In function 'madvise_vma':
  mm/madvise.c:534:7: error: 'MADV_FREE' undeclared (first use in this function)
    case MADV_FREE:
       ^
  mm/madvise.c: In function 'madvise_behavior_valid':
  mm/madvise.c:561:7: error: 'MADV_FREE' undeclared (first use in this function)
    case MADV_FREE:
       ^
  make[1]: *** [mm/madvise.o] Error 1
  make: *** [mm] Error 2

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
---
 arch/alpha/include/uapi/asm/mman.h  | 1 +
 arch/mips/include/uapi/asm/mman.h   | 1 +
 arch/parisc/include/uapi/asm/mman.h | 1 +
 arch/xtensa/include/uapi/asm/mman.h | 1 +
 4 files changed, 4 insertions(+)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..836fbd4 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -44,6 +44,7 @@
 #define MADV_WILLNEED	3		/* will need these pages */
 #define	MADV_SPACEAVAIL	5		/* ensure resources are available */
 #define MADV_DONTNEED	6		/* don't need these pages */
+#define MADV_FREE	7		/* free pages only if memory pressure */
 
 /* common/generic parameters */
 #define MADV_REMOVE	9		/* remove these pages & resources */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..106e741 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -67,6 +67,7 @@
 #define MADV_SEQUENTIAL 2		/* expect sequential page references */
 #define MADV_WILLNEED	3		/* will need these pages */
 #define MADV_DONTNEED	4		/* don't need these pages */
+#define MADV_FREE	5		/* free pages only if memory pressure */
 
 /* common parameters: try to keep these consistent across architectures */
 #define MADV_REMOVE	9		/* remove these pages & resources */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..6cb8db7 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -40,6 +40,7 @@
 #define MADV_SPACEAVAIL 5               /* insure that resources are reserved */
 #define MADV_VPS_PURGE  6               /* Purge pages from VM page cache */
 #define MADV_VPS_INHERIT 7              /* Inherit parents page size */
+#define MADV_FREE	8		/* free pages only if memory pressure */
 
 /* common/generic parameters */
 #define MADV_REMOVE	9		/* remove these pages & resources */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..1b19f25 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -80,6 +80,7 @@
 #define MADV_SEQUENTIAL	2		/* expect sequential page references */
 #define MADV_WILLNEED	3		/* will need these pages */
 #define MADV_DONTNEED	4		/* don't need these pages */
+#define MADV_FREE	5		/* free pages only if memory pressure */
 
 /* common parameters: try to keep these consistent across architectures */
 #define MADV_REMOVE	9		/* remove these pages & resources */
-- 
1.9.3
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Subject: Re: [PATCH] arch: uapi: asm: mman.h: Support MADV_FREE for madvise()
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On Mon, Dec 1, 2014 at 11:43 PM, Chen Gang <gang.chen.5i5j@gmail.com> wrote:
> At present, kernel supports madvise(MADV_FREE), so can benefit to all
> related architectures (can grep MADV_WILLNEED or MADV_REMOVE in "arch/"
> to know about all related architectures).

A similar patch has been posted a while ago:

http://www.spinics.net/lists/linux-mm/msg81538.html

-- 
Thanks.
-- Max
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On Mon, Dec 1, 2014 at 9:52 PM, Max Filippov <jcmvbkbc@gmail.com> wrote:
> On Mon, Dec 1, 2014 at 11:43 PM, Chen Gang <gang.chen.5i5j@gmail.com> wrote:
>> At present, kernel supports madvise(MADV_FREE), so can benefit to all
>> related architectures (can grep MADV_WILLNEED or MADV_REMOVE in "arch/"
>> to know about all related architectures).
>
> A similar patch has been posted a while ago:
>
> http://www.spinics.net/lists/linux-mm/msg81538.html

Would it be possible to use the same number everywhere?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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On Mon, Dec 1, 2014 at 4:35 PM, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> On Mon, Dec 1, 2014 at 9:52 PM, Max Filippov <jcmvbkbc@gmail.com> wrote:
>> On Mon, Dec 1, 2014 at 11:43 PM, Chen Gang <gang.chen.5i5j@gmail.com> wrote:
>>> At present, kernel supports madvise(MADV_FREE), so can benefit to all
>>> related architectures (can grep MADV_WILLNEED or MADV_REMOVE in "arch/"
>>> to know about all related architectures).
>>
>> A similar patch has been posted a while ago:
>>
>> http://www.spinics.net/lists/linux-mm/msg81538.html
>
> Would it be possible to use the same number everywhere?

Yes please. It's ridiculous that we still need patches like this.

I proposed unifying all this two years ago, but didn't follow up.

>From glibc's perspective it would be simpler if we started using the
same number everywhere.

http://www.spinics.net/lists/linux-api/msg02064.html

Cheers,
Carlos.
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Subject: Re: [PATCH] arch: uapi: asm: mman.h: Support MADV_FREE for madvise()
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Cc: Max Filippov <jcmvbkbc@gmail.com>,
	Minchan Kim <minchan@kernel.org>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
	"rth@twiddle.net" <rth@twiddle.net>,
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To: Carlos O'Donell <carlos@systemhalted.org>,
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On 12/2/14 06:01, Carlos O'Donell wrote:
> On Mon, Dec 1, 2014 at 4:35 PM, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>> On Mon, Dec 1, 2014 at 9:52 PM, Max Filippov <jcmvbkbc@gmail.com> wrote:
>>> On Mon, Dec 1, 2014 at 11:43 PM, Chen Gang <gang.chen.5i5j@gmail.com> wrote:
>>>> At present, kernel supports madvise(MADV_FREE), so can benefit to all
>>>> related architectures (can grep MADV_WILLNEED or MADV_REMOVE in "arch/"
>>>> to know about all related architectures).
>>>
>>> A similar patch has been posted a while ago:
>>>
>>> http://www.spinics.net/lists/linux-mm/msg81538.html
>>

OK, thanks.


>> Would it be possible to use the same number everywhere?
> 

For current patch, I guess, we can use '8' for it, since MADV_FREE in
asm-generic is merged just a few days ago (which is not used by user
mode), and parisc has to use '8'.

And welcome the related member's ideas.


> Yes please. It's ridiculous that we still need patches like this.
> 
> I proposed unifying all this two years ago, but didn't follow up.
> 
> From glibc's perspective it would be simpler if we started using the
> same number everywhere.
> 
> http://www.spinics.net/lists/linux-api/msg02064.html
> 

For me, we can divide it into 2 steps:

 - Let MADV_FREE has the same value (about current patch).

 - Let all shared MADV_* to "asm-generic" (about next patch, although I
   am not quite sure whether it is executable).


Thanks.
-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed
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Subject: Re: [PATCH] arch: uapi: asm: mman.h: Support MADV_FREE for madvise()
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To: Carlos O'Donell <carlos@systemhalted.org>
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On Mon, 2014-12-01 at 17:01 -0500, Carlos O'Donell wrote:
> On Mon, Dec 1, 2014 at 4:35 PM, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> > On Mon, Dec 1, 2014 at 9:52 PM, Max Filippov <jcmvbkbc@gmail.com> wrote:
> >> On Mon, Dec 1, 2014 at 11:43 PM, Chen Gang <gang.chen.5i5j@gmail.com> wrote:
> >>> At present, kernel supports madvise(MADV_FREE), so can benefit to all
> >>> related architectures (can grep MADV_WILLNEED or MADV_REMOVE in "arch/"
> >>> to know about all related architectures).
> >>
> >> A similar patch has been posted a while ago:
> >>
> >> http://www.spinics.net/lists/linux-mm/msg81538.html
> >
> > Would it be possible to use the same number everywhere?
> 
> Yes please. It's ridiculous that we still need patches like this.
> 
> I proposed unifying all this two years ago, but didn't follow up.
> 
> From glibc's perspective it would be simpler if we started using the
> same number everywhere.
> 
> http://www.spinics.net/lists/linux-api/msg02064.html

Please co-ordinate with Andrew then because he's intent on merging this
patch:

http://marc.info/?l=linux-mm-commits&m=141747572930808

James


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Subject: Re: [PATCH] arch: uapi: asm: mman.h: Support MADV_FREE for madvise()
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Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
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	Minchan Kim <minchan@kernel.org>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>,
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On 12/2/14 09:55, James Bottomley wrote:
> On Mon, 2014-12-01 at 17:01 -0500, Carlos O'Donell wrote:
>> On Mon, Dec 1, 2014 at 4:35 PM, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>>> On Mon, Dec 1, 2014 at 9:52 PM, Max Filippov <jcmvbkbc@gmail.com> wrote:
>>>> On Mon, Dec 1, 2014 at 11:43 PM, Chen Gang <gang.chen.5i5j@gmail.com> wrote:
>>>>> At present, kernel supports madvise(MADV_FREE), so can benefit to all
>>>>> related architectures (can grep MADV_WILLNEED or MADV_REMOVE in "arch/"
>>>>> to know about all related architectures).
>>>>
>>>> A similar patch has been posted a while ago:
>>>>
>>>> http://www.spinics.net/lists/linux-mm/msg81538.html
>>>
>>> Would it be possible to use the same number everywhere?
>>
>> Yes please. It's ridiculous that we still need patches like this.
>>
>> I proposed unifying all this two years ago, but didn't follow up.
>>
>> From glibc's perspective it would be simpler if we started using the
>> same number everywhere.
>>
>> http://www.spinics.net/lists/linux-api/msg02064.html
> 
> Please co-ordinate with Andrew then because he's intent on merging this
> patch:
> 
> http://marc.info/?l=linux-mm-commits&m=141747572930808
> 

For me, we can let MADV_FREE to 8 based on the Andrew's mm tree. Since
it is about uapi, we need try our best to let it perfect.


Thanks.
-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed

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From: Chen Gang <gang.chen.5i5j@gmail.com>
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Subject: Re: [PATCH] arch: uapi: asm: mman.h: Let MADV_FREE have same value
 for all architectures
Date: Sat, 06 Dec 2014 23:57:21 +0800
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Hello Maintainers:

After this patch, our parisc can pass allmodconfig in linux next tree,
for me, we can say parisc specific code have no touch for allmodconfig.
:-)

But for parisc gcc latest upstream compiler, I found several issues, and
I shall try to analyse them and communicate with gcc related members.

And I also want to consult about parisc assembly instructions, I can not
find the related reference documents, could you help to have a check (or
provide some related information for it)? related contents are below:

  parisc support several store instructions: 'stb' (for store byte),
  'stw(m)' (for store word), and 'std' (for store double word).

  They should be in the same format in binary code, and have neighbour
  numbers, and 'stw(m)' need be in the middle of 'stb' and 'std'. one
  sample for the instruction 'inst' (it is 'unsigned int'):

   - for ((inst >> 26) != 0x3):

     stb: 0x18, or 0x19,
     stw: 0x1a, stwm: 0x1b,
     std: 0x1c.

   - else ((inst >> 26) == 0x3), need check '(inst >> 6) & 0xf':

     stb: 0x08, or 0x09,
     stw: 0x0a,
     std: 0x0b.

  it is about my binutils/gdb patch for parisc, gdb want to recognize
  'st??' to find the position for saving relate context (registers).


Welcome any suggestions, ideas, and completions.

Thanks.


On 12/06/2014 06:00 AM, Chen Gang wrote:
> On 12/05/2014 02:54 PM, Minchan Kim wrote:
>> On Fri, Dec 05, 2014 at 06:58:29AM +0800, Chen Gang wrote:
>>> For uapi, need try to let all macros have same value, and MADV_FREE is
>>> added into main branch recently, so need redefine MADV_FREE for it.
>>>
>>> At present, '8' can be shared with all architectures, so redefine it to
>>> '8'.
>>>
>>> Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
>>
>>
>> Hello Chen,
>>
>> Thanks for looking at this.
>> Feel free to add my sign.
>>
>> Acked-by: Minchan Kim <minchan@kernel.org>
>>
> 
> OK, thanks.
> 
> Originally I sent the same patch like you sent (but later than yours).
> Geert suggested to use same value for MADV_FREE, and Carlos confirmed
> it and suggested more things (sorry, I forgot to Cc them in this mail).
> 
> 
> Thanks.
> 


-- 
Chen Gang

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Subject: Re: [PATCH] arch: uapi: asm: mman.h: Let MADV_FREE have same value for all architectures
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On 6-Dec-14, at 10:57 AM, Chen Gang wrote:

> And I also want to consult about parisc assembly instructions, I can  
> not
> find the related reference documents, could you help to have a check  
> (or
> provide some related information for it)? related contents are below:

https://parisc.wiki.kernel.org/index.php/Technical_Documentation

Dave
--
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Subject: Re: [PATCH] arch: uapi: asm: mman.h: Let MADV_FREE have same value
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On 12/8/14 00:14, John David Anglin wrote:
> On 6-Dec-14, at 10:57 AM, Chen Gang wrote:
> 
>> And I also want to consult about parisc assembly instructions, I can not
>> find the related reference documents, could you help to have a check (or
>> provide some related information for it)? related contents are below:
> 
> https://parisc.wiki.kernel.org/index.php/Technical_Documentation

OK, thank you very much!!

For me, these information is enough, I checked the related sub link, it
has a full description for all related instruction (stb/h, stw, std).

  https://parisc.wiki.kernel.org/images-parisc/7/73/Parisc2.0.pdf

For me, my original comments need be improved: need mention about STH,
and maybe also need consider about additional related instructions of
parisc 2.0 (STDA, STWA, STBY, STDBY).


Thanks.
-- 
Chen Gang

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: fix out-of-register compiler error in ldcw inline
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On 10/21/2014 10:01 PM, John David Anglin wrote:
> On 10/21/2014 3:46 PM, Helge Deller wrote:
>>   /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
>> -#define __ldcw(a) ({                        \
>> -    unsigned __ret;                        \
>> -    __asm__ __volatile__(__LDCW " 0(%2),%0"            \
>> -        : "=r" (__ret), "+m" (*(a)) : "r" (a));        \
>> -    __ret;                            \
>> -})
>> +static inline unsigned int __ldcw(volatile unsigned int *address)
>> +{
>> +    unsigned int ret;
>> +    register volatile unsigned int *a = address;
>> +    __asm__ __volatile__(__LDCW " 0(%2),%0"
>> +        : "=r" (ret), "+m" (*(a)) : "r" (a));
>> +    return ret;
>> +}
> You could keep the old macro version for 32-bit builds as the problem shouldn't occur there.

Attached is an updated patch/work-around which just reuses the existing register.
I don't like this patch much, but it's better than nothing for now.

Helge
  


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diff --git a/arch/parisc/include/asm/ldcw.h b/arch/parisc/include/asm/ldcw.h
index d2d11b7..989595d 100644
--- a/arch/parisc/include/asm/ldcw.h
+++ b/arch/parisc/include/asm/ldcw.h
@@ -1,6 +1,8 @@
 #ifndef __PARISC_LDCW_H
 #define __PARISC_LDCW_H
 
+#include <linux/compiler.h>
+
 #ifndef CONFIG_PA20
 /* Because kmalloc only guarantees 8-byte alignment for kmalloc'd data,
    and GCC only guarantees 8-byte alignment for stack locals, we can't
@@ -34,12 +36,22 @@
 #endif /*!CONFIG_PA20*/
 
 /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
-#define __ldcw(a) ({						\
-	unsigned __ret;						\
-	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
-		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
-	__ret;							\
-})
+static inline unsigned int __ldcw(volatile unsigned int *address)
+{
+#if GCC_VERSION >= 40900
+	/* work around gcc-4.9 bug:
+	 * error: can't find a register in class 'R1_REGS' while reloading 'asm'
+	 */
+	__asm__ __volatile__(__LDCW " 0(%0),%0"
+		: "=r" (address), "+m" (*(address)) : "0" (address));
+	return (unsigned long) address;
+#else
+	unsigned int val;
+	__asm__ __volatile__(__LDCW " 0(%2),%0"
+		: "=r" (val), "+m" (*(address)) : "r" (address));
+	return val;
+#endif
+}
 
 #ifdef CONFIG_SMP
 # define __lock_aligned __attribute__((__section__(".data..lock_aligned")))

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From - Thu Nov 08 21:37:09 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Someone want to sponsor a HPPA box for the HPPA port?
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To: linux-parisc <linux-parisc@vger.kernel.org>,
	HPPA porters <debian-hppa@lists.debian.org>
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Hello everyone,

We got the offer from the nice people at OSUOSL.org that they would
host another HPPA box for us (beside the parisc.parisc-linux.org machine).
Personally I would like to set it up as debian buildd server, but of course
it can host a gentoo chroot as well.

Maybe someone of you (in the US due to shipping costs!) want to sponsor
one of your machines for this project? If you haven't used your machine
since quite some time yet, this would be the possibility to get it to work
on something useful now :-)
Ideally the machine should be rack-mountable and have a GSP port so that
remote administration is possible.

If you are interested to give-away such a machine, please let me know.
I can cover the shipping costs if needed.

Thanks,
Helge
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Subject: [PATCH 12/18] parisc/uaccess: fix sparse errors
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Cc: Arnd Bergmann <arnd@arndb.de>, linux-arch@vger.kernel.org,
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	Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org
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virtio wants to read bitwise types from userspace using get_user.  At the
moment this triggers sparse errors, since the value is passed through an
integer.

Fix that up using __force.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 arch/parisc/include/asm/uaccess.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index a5cb070..3a20da6 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -104,7 +104,7 @@ struct exception_data {
 	    }                                           \
 	}                                               \
 							\
-	(x) = (__typeof__(*(ptr))) __gu_val;            \
+	(x) = (__force __typeof__(*(ptr))) __gu_val;            \
 	__gu_err;                                       \
 })
 
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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] parisc: fix out-of-register compiler error in ldcw inline assembler function
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On 21-Oct-14, at 3:46 PM, Helge Deller wrote:

> Sometimes we face this compiler error:
>
> arch/parisc/include/asm/ldcw.h:39:2: error: can't find a register in  
> class 'R1_REGS' while reloading 'asm'
> 	__asm__ __volatile__(__LDCW " 0(%2),%0"...
> 	note: in expansion of macro '__ldcw'
> 	error: 'asm' operand has impossible constraints
>
> Dave suggested:
> Likely the problem can be fixed by making __ldcw a static inline  
> function and
> forcing the argument 'a' to a specific register before using in ldcw.
>
> Since it's not easy to reproduce this bug, this patch now tries to  
> still let
> the compiler decide on which register should be used. If it doesn't  
> work, we'll
> have to assign a specific register as suggested by Dave.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
> Cc: John David Anglin <dave.anglin@bell.net>
>
> diff --git a/arch/parisc/include/asm/ldcw.h b/arch/parisc/include/ 
> asm/ldcw.h
> index d2d11b7..b951e01 100644
> --- a/arch/parisc/include/asm/ldcw.h
> +++ b/arch/parisc/include/asm/ldcw.h
> @@ -34,12 +34,14 @@
> #endif /*!CONFIG_PA20*/
>
> /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
> -#define __ldcw(a) ({						\
> -	unsigned __ret;						\
> -	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
> -		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
> -	__ret;							\
> -})
> +static inline unsigned int __ldcw(volatile unsigned int *address)
> +{
> +	unsigned int ret;
> +	register volatile unsigned int *a = address;
> +	__asm__ __volatile__(__LDCW " 0(%2),%0"
> +		: "=r" (ret), "+m" (*(a)) : "r" (a));
> +	return ret;
> +}
>
> #ifdef CONFIG_SMP
> # define __lock_aligned  
> __attribute__((__section__(".data..lock_aligned")))
>


Helge, could you test the attached patch.  Updated comment in change  
explains the "memory"
clobber.  It's been lightly tested.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
---



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diff --git a/arch/parisc/include/asm/ldcw.h b/arch/parisc/include/asm/ldcw.h
index d2d11b7..8121aa6 100644
--- a/arch/parisc/include/asm/ldcw.h
+++ b/arch/parisc/include/asm/ldcw.h
@@ -33,11 +33,18 @@
 
 #endif /*!CONFIG_PA20*/
 
-/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
+/* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.
+   We don't explicitly expose that "*a" may be written as reload
+   fails to find a register in class R1_REGS when "a" needs to be
+   reloaded when generating 64-bit PIC code.  Instead, we clobber
+   memory to indicate to the compiler that the assembly code reads
+   or writes to items other than those listed in the input and output
+   operands.  This may pessimize the code somewhat but __ldcw is
+   usually used within code blocks surrounded by memory barriors.  */
 #define __ldcw(a) ({						\
 	unsigned __ret;						\
-	__asm__ __volatile__(__LDCW " 0(%2),%0"			\
-		: "=r" (__ret), "+m" (*(a)) : "r" (a));		\
+	__asm__ __volatile__(__LDCW " 0(%1),%0"			\
+		: "=r" (__ret) : "r" (a) : "memory");		\
 	__ret;							\
 })
 

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From - Thu Nov 08 21:37:09 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: fix out-of-register compiler error in ldcw inline
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Hi Dave,

On 12/14/2014 04:49 PM, John David Anglin wrote:
> On 21-Oct-14, at 3:46 PM, Helge Deller wrote:
>> Sometimes we face this compiler error:
>>
>> arch/parisc/include/asm/ldcw.h:39:2: error: can't find a register in class 'R1_REGS' while reloading 'asm'
>>     __asm__ __volatile__(__LDCW " 0(%2),%0"...
>>     note: in expansion of macro '__ldcw'
>>     error: 'asm' operand has impossible constraints
>>
>
>
> Helge, could you test the attached patch.  Updated comment in change explains the "memory"
> clobber.  It's been lightly tested.

Your patch seems to do the right thing, and it's nicer.
I didn't faced any compiler issues with it, but still want to test it some more, but I think that's the best approach.
Do you mind sending a full patch to the list ?

Thanks,
Helge
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] parisc: fix out-of-register compiler error in ldcw inline
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To: Helge Deller <deller@gmx.de>
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On 12/15/2014 4:27 PM, Helge Deller wrote:
> Hi Dave,
>
> On 12/15/2014 10:25 PM, John David Anglin wrote:
>> On 12/15/2014 3:58 PM, Helge Deller wrote:
>>> Do you mind sending a full patch to the list ?
>> Thought I did.  Was something missing?
>
> A nice changelog and title for the patch...
> I could copy over your comments from that patch, but maybe you want to 
> rephrase it, so that it actually comes from you.
> You can send me the wording here in mail as well, then I'll put it 
> together.
I think the email subject is fine for the title.

For the comment:

The __ldcw macro has a problem when its argument needs to be reloaded from
memory.  The output memory operand and the input register operand both need
to be reloaded using a register in class R1_REGS when generating 64-bit 
code.
This fails because there's only a single register in the class. Instead, 
use a memory
clobber.  This also makes the __ldcw macro a compiler memory barrier.

Dave

-- 
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From - Thu Nov 08 21:37:09 2018
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From: Chen Gang <gang.chen.5i5j@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] arch: uapi: asm: mman.h: Let MADV_FREE have same value
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On 12/06/2014 11:57 PM, Chen Gang wrote:
> Hello Maintainers:
> 
[...]
> 
> But for parisc gcc latest upstream compiler, I found several issues, and
> I shall try to analyse them and communicate with gcc related members.
> 

Oh, sorry, there is one my configuration issue when cross compiling
parisc, after give a correct configuration, most of issues are disapear.

Thanks.

[...]
> 

-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed
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From: Masahiro Yamada <yamada.m@jp.panasonic.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kbuild.devel,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 2/6] kbuild: do not add $(call ...) to invoke cc-version or cc-fullversion
Date: Thu, 25 Dec 2014 14:31:24 +0900
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Cc: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>,
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	Jonathan Corbet <corbet@lwn.net>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/25509>

The macros cc-version, cc-fullversion and ld-version take no argument.
It is not necessary to add $(call ...) to invoke them.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
---

 Documentation/kbuild/makefiles.txt | 4 ++--
 arch/parisc/Makefile               | 2 +-
 arch/powerpc/Makefile              | 6 +++---
 arch/x86/Makefile.um               | 2 +-
 kernel/gcov/Makefile               | 2 +-
 scripts/Kbuild.include             | 7 ++-----
 6 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index a311db8..7b3487a 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -524,7 +524,7 @@ more details, with real examples.
 	Example:
 		#arch/x86/Makefile
 		cflags-y += $(shell \
-		if [ $(call cc-version) -ge 0300 ] ; then \
+		if [ $(cc-version) -ge 0300 ] ; then \
 			echo "-mregparm=3"; fi ;)
 
 	In the above example, -mregparm=3 is only used for gcc version greater
@@ -552,7 +552,7 @@ more details, with real examples.
 
 	Example:
 		#arch/powerpc/Makefile
-		$(Q)if test "$(call cc-fullversion)" = "040200" ; then \
+		$(Q)if test "$(cc-fullversion)" = "040200" ; then \
 			echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \
 			false ; \
 		fi
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index e9b4b6a..ff5e55f 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -149,7 +149,7 @@ endef
 # we require gcc 3.3 or above to compile the kernel
 archprepare: checkbin
 checkbin:
-	@if test "$(call cc-version)" -lt "0303"; then \
+	@if test "$(cc-version)" -lt "0303"; then \
 		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
 		echo "the kernel." ; \
 		false ; \
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 132d9c6..fc502e0 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -314,7 +314,7 @@ TOUT	:= .tmp_gas_check
 # - Require gcc 4.0 or above on 64-bit
 # - gcc-4.2.0 has issues compiling modules on 64-bit
 checkbin:
-	@if test "$(call cc-version)" = "0304" ; then \
+	@if test "$(cc-version)" = "0304" ; then \
 		if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \
 			echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \
 			echo 'correctly with gcc-3.4 and your version of binutils.'; \
@@ -322,13 +322,13 @@ checkbin:
 			false; \
 		fi ; \
 	fi
-	@if test "$(call cc-version)" -lt "0400" \
+	@if test "$(cc-version)" -lt "0400" \
 	    && test "x${CONFIG_PPC64}" = "xy" ; then \
                 echo -n "Sorry, GCC v4.0 or above is required to build " ; \
                 echo "the 64-bit powerpc kernel." ; \
                 false ; \
         fi
-	@if test "$(call cc-fullversion)" = "040200" \
+	@if test "$(cc-fullversion)" = "040200" \
 	    && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \
 		echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \
 		echo 'kernel with modules enabled.' ; \
diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um
index 36b62bc..95eba55 100644
--- a/arch/x86/Makefile.um
+++ b/arch/x86/Makefile.um
@@ -30,7 +30,7 @@ cflags-y += -ffreestanding
 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
 # a lot more stack due to the lack of sharing of stacklots.  Also, gcc
 # 4.3.0 needs -funit-at-a-time for extern inline functions.
-KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \
+KBUILD_CFLAGS += $(shell if [ $(cc-version) -lt 0400 ] ; then \
 			echo $(call cc-option,-fno-unit-at-a-time); \
 			else echo $(call cc-option,-funit-at-a-time); fi ;)
 
diff --git a/kernel/gcov/Makefile b/kernel/gcov/Makefile
index 52aa7e8..6f01fa3 100644
--- a/kernel/gcov/Makefile
+++ b/kernel/gcov/Makefile
@@ -21,7 +21,7 @@ else
 # is not available. We can probably move if-lt to Kbuild.include, so it's also
 # not defined during clean or to include Kbuild.include in
 # scripts/Makefile.clean. But the following workaround seems least invasive.
-  cc-ver := $(if $(call cc-version),$(call cc-version),0)
+  cc-ver := $(if $(cc-version),$(cc-version),0)
 endif
 
 obj-$(CONFIG_GCOV_KERNEL) := base.o fs.o
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index a972666..69c9f57 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -136,17 +136,15 @@ cc-disable-warning = $(call try-run,\
 	$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
 
 # cc-version
-# Usage gcc-ver := $(call cc-version)
 cc-version = $(shell $(KBUILD_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
 
 # cc-fullversion
-# Usage gcc-ver := $(call cc-fullversion)
 cc-fullversion = $(shell $(KBUILD_SHELL) \
 	$(srctree)/scripts/gcc-version.sh -p $(CC))
 
 # cc-ifversion
 # Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
-cc-ifversion = $(shell [ $(call cc-version) $(1) $(2) ] && echo $(3))
+cc-ifversion = $(shell [ $(cc-version) $(1) $(2) ] && echo $(3))
 
 # cc-ldoption
 # Usage: ldflags += $(call cc-ldoption, -Wl$(comma)--hash-style=both)
@@ -164,13 +162,12 @@ ld-option = $(call try-run,\
 ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2))
 
 # ld-version
-# Usage: $(call ld-version)
 # Note this is mainly for HJ Lu's 3 number binutil versions
 ld-version = $(shell $(LD) --version | $(srctree)/scripts/ld-version.sh)
 
 # ld-ifversion
 # Usage:  $(call ld-ifversion, -ge, 22252, y)
-ld-ifversion = $(shell [ $(call ld-version) $(1) $(2) ] && echo $(3))
+ld-ifversion = $(shell [ $(ld-version) $(1) $(2) ] && echo $(3))
 
 ######
 
-- 
1.9.1

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From - Thu Nov 08 21:37:09 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.kbuild.devel,gmane.linux.documentation,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 0/6] kbuild: refactor Makefiles related with cc-version
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Cc: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>,
	Michal Marek <mmarek@suse.cz>,
	Masahiro Yamada <yamada.m@jp.panasonic.com>, x86@kernel.org,
	"H. Peter Anvin" <hpa@zytor.com>,
	"H. Peter Anvin" <hpa@linux.intel.com>, linux-doc@vger.kernel.org,
	Jonathan Corbet <corbet@lwn.net>,
	Robert Richter <rrichter@cavium.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Helge Deller <deller@gmx.de>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	linux-kernel@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	Andi Kleen <ak@linux.intel.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Paul Mackerras <paulus@samba.org>,
	Ingo Molnar <mingo@redhat.com>, linux-parisc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org
To: linux-kbuild@vger.kernel.org
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Masahiro Yamada (6):
  kbuild: fix cc-ifversion macro
  kbuild: do not add $(call ...) to invoke cc-version or cc-fullversion
  kbuild,gcov: remove unnecessary workaround
  kbuild,gcov: simplify kernel/gcov/Makefile
  kbuild: allow cc-ifversion to have the argument for false condition
  kbuild,gcov: simplify kernel/gcov/Makefile more

 Documentation/kbuild/makefiles.txt |  9 +++++----
 arch/parisc/Makefile               |  2 +-
 arch/powerpc/Makefile              |  6 +++---
 arch/x86/Makefile.um               |  2 +-
 kernel/gcov/Makefile               | 36 +++++-------------------------------
 scripts/Kbuild.include             |  7 ++-----
 6 files changed, 17 insertions(+), 45 deletions(-)

-- 
1.9.1


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Subject: [PATCH repost 12/16] parisc/uaccess: fix sparse errors
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Cc: Arnd Bergmann <arnd@arndb.de>, linux-arch@vger.kernel.org,
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virtio wants to read bitwise types from userspace using get_user.  At the
moment this triggers sparse errors, since the value is passed through an
integer.

Fix that up using __force.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 arch/parisc/include/asm/uaccess.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index a5cb070..3a20da6 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -104,7 +104,7 @@ struct exception_data {
 	    }                                           \
 	}                                               \
 							\
-	(x) = (__typeof__(*(ptr))) __gu_val;            \
+	(x) = (__force __typeof__(*(ptr))) __gu_val;            \
 	__gu_err;                                       \
 })
 
-- 
MST


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Subject: Re: [PATCH repost 12/16] parisc/uaccess: fix sparse errors
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Hi Michael,

On 12/25/2014 10:29 AM, Michael S. Tsirkin wrote:
> virtio wants to read bitwise types from userspace using get_user.  At the

I don't know the virtio code much yet, but does it makes sense to read bitwise types?
Will virtio then get possible troubles because of endianess correct as well?

Do you have a code example, or the sparse error message ?

Helge

> moment this triggers sparse errors, since the value is passed through an
> integer.
>
> Fix that up using __force.
>
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> ---
>   arch/parisc/include/asm/uaccess.h | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
> index a5cb070..3a20da6 100644
> --- a/arch/parisc/include/asm/uaccess.h
> +++ b/arch/parisc/include/asm/uaccess.h
> @@ -104,7 +104,7 @@ struct exception_data {
>   	    }                                           \
>   	}                                               \
>   							\
> -	(x) = (__typeof__(*(ptr))) __gu_val;            \
> +	(x) = (__force __typeof__(*(ptr))) __gu_val;            \
>   	__gu_err;                                       \
>   })
>
>


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Subject: Re: [PATCH 2/6] kbuild: do not add $(call ...) to invoke cc-version
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On 12/25/2014 06:31 AM, Masahiro Yamada wrote:
> The macros cc-version, cc-fullversion and ld-version take no argument.
> It is not necessary to add $(call ...) to invoke them.
>
> Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
> ---
>
>   Documentation/kbuild/makefiles.txt | 4 ++--
>   arch/parisc/Makefile               | 2 +-

For the parisc change:
Acked-by: Helge Deller <deller@gmx.de>


Helge

>   arch/powerpc/Makefile              | 6 +++---
>   arch/x86/Makefile.um               | 2 +-
>   kernel/gcov/Makefile               | 2 +-
>   scripts/Kbuild.include             | 7 ++-----
>   6 files changed, 10 insertions(+), 13 deletions(-)
>
> diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
> index a311db8..7b3487a 100644
> --- a/Documentation/kbuild/makefiles.txt
> +++ b/Documentation/kbuild/makefiles.txt
> @@ -524,7 +524,7 @@ more details, with real examples.
>   	Example:
>   		#arch/x86/Makefile
>   		cflags-y += $(shell \
> -		if [ $(call cc-version) -ge 0300 ] ; then \
> +		if [ $(cc-version) -ge 0300 ] ; then \
>   			echo "-mregparm=3"; fi ;)
>
>   	In the above example, -mregparm=3 is only used for gcc version greater
> @@ -552,7 +552,7 @@ more details, with real examples.
>
>   	Example:
>   		#arch/powerpc/Makefile
> -		$(Q)if test "$(call cc-fullversion)" = "040200" ; then \
> +		$(Q)if test "$(cc-fullversion)" = "040200" ; then \
>   			echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \
>   			false ; \
>   		fi
> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
> index e9b4b6a..ff5e55f 100644
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
> @@ -149,7 +149,7 @@ endef
>   # we require gcc 3.3 or above to compile the kernel
>   archprepare: checkbin
>   checkbin:
> -	@if test "$(call cc-version)" -lt "0303"; then \
> +	@if test "$(cc-version)" -lt "0303"; then \
>   		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
>   		echo "the kernel." ; \
>   		false ; \
> diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
> index 132d9c6..fc502e0 100644
> --- a/arch/powerpc/Makefile
> +++ b/arch/powerpc/Makefile
> @@ -314,7 +314,7 @@ TOUT	:= .tmp_gas_check
>   # - Require gcc 4.0 or above on 64-bit
>   # - gcc-4.2.0 has issues compiling modules on 64-bit
>   checkbin:
> -	@if test "$(call cc-version)" = "0304" ; then \
> +	@if test "$(cc-version)" = "0304" ; then \
>   		if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \
>   			echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \
>   			echo 'correctly with gcc-3.4 and your version of binutils.'; \
> @@ -322,13 +322,13 @@ checkbin:
>   			false; \
>   		fi ; \
>   	fi
> -	@if test "$(call cc-version)" -lt "0400" \
> +	@if test "$(cc-version)" -lt "0400" \
>   	    && test "x${CONFIG_PPC64}" = "xy" ; then \
>                   echo -n "Sorry, GCC v4.0 or above is required to build " ; \
>                   echo "the 64-bit powerpc kernel." ; \
>                   false ; \
>           fi
> -	@if test "$(call cc-fullversion)" = "040200" \
> +	@if test "$(cc-fullversion)" = "040200" \
>   	    && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \
>   		echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \
>   		echo 'kernel with modules enabled.' ; \
> diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um
> index 36b62bc..95eba55 100644
> --- a/arch/x86/Makefile.um
> +++ b/arch/x86/Makefile.um
> @@ -30,7 +30,7 @@ cflags-y += -ffreestanding
>   # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
>   # a lot more stack due to the lack of sharing of stacklots.  Also, gcc
>   # 4.3.0 needs -funit-at-a-time for extern inline functions.
> -KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \
> +KBUILD_CFLAGS += $(shell if [ $(cc-version) -lt 0400 ] ; then \
>   			echo $(call cc-option,-fno-unit-at-a-time); \
>   			else echo $(call cc-option,-funit-at-a-time); fi ;)
>
> diff --git a/kernel/gcov/Makefile b/kernel/gcov/Makefile
> index 52aa7e8..6f01fa3 100644
> --- a/kernel/gcov/Makefile
> +++ b/kernel/gcov/Makefile
> @@ -21,7 +21,7 @@ else
>   # is not available. We can probably move if-lt to Kbuild.include, so it's also
>   # not defined during clean or to include Kbuild.include in
>   # scripts/Makefile.clean. But the following workaround seems least invasive.
> -  cc-ver := $(if $(call cc-version),$(call cc-version),0)
> +  cc-ver := $(if $(cc-version),$(cc-version),0)
>   endif
>
>   obj-$(CONFIG_GCOV_KERNEL) := base.o fs.o
> diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
> index a972666..69c9f57 100644
> --- a/scripts/Kbuild.include
> +++ b/scripts/Kbuild.include
> @@ -136,17 +136,15 @@ cc-disable-warning = $(call try-run,\
>   	$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
>
>   # cc-version
> -# Usage gcc-ver := $(call cc-version)
>   cc-version = $(shell $(KBUILD_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
>
>   # cc-fullversion
> -# Usage gcc-ver := $(call cc-fullversion)
>   cc-fullversion = $(shell $(KBUILD_SHELL) \
>   	$(srctree)/scripts/gcc-version.sh -p $(CC))
>
>   # cc-ifversion
>   # Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
> -cc-ifversion = $(shell [ $(call cc-version) $(1) $(2) ] && echo $(3))
> +cc-ifversion = $(shell [ $(cc-version) $(1) $(2) ] && echo $(3))
>
>   # cc-ldoption
>   # Usage: ldflags += $(call cc-ldoption, -Wl$(comma)--hash-style=both)
> @@ -164,13 +162,12 @@ ld-option = $(call try-run,\
>   ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2))
>
>   # ld-version
> -# Usage: $(call ld-version)
>   # Note this is mainly for HJ Lu's 3 number binutil versions
>   ld-version = $(shell $(LD) --version | $(srctree)/scripts/ld-version.sh)
>
>   # ld-ifversion
>   # Usage:  $(call ld-ifversion, -ge, 22252, y)
> -ld-ifversion = $(shell [ $(call ld-version) $(1) $(2) ] && echo $(3))
> +ld-ifversion = $(shell [ $(ld-version) $(1) $(2) ] && echo $(3))
>
>   ######
>
>



From - Thu Nov 08 21:37:10 2018
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From: Nicholas Mc Guire <der.herr@hofr.at>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.input,gmane.linux.ports.parisc
Subject: [PATCH 4/13] incorrect use of init_completion fixup
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	linux-input@vger.kernel.org, linux-parisc@vger.kernel.org,
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The successive init_completion calls should be reinit_completion calls.

patch against 3.19.0-rc1 linux-next

Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
---
 drivers/input/keyboard/hil_kbd.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index 610a8af..5b152f2 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -473,7 +473,7 @@ static int hil_dev_connect(struct serio *serio, struct serio_driver *drv)
 	if (error)
 		goto bail1;

-	init_completion(&dev->cmd_done);
+	reinit_completion(&dev->cmd_done);
 	serio_write(serio, 0);
 	serio_write(serio, 0);
 	serio_write(serio, HIL_PKT_CMD >> 8);
@@ -482,7 +482,7 @@ static int hil_dev_connect(struct serio *serio, struct serio_driver *drv)
 	if (error)
 		goto bail1;

-	init_completion(&dev->cmd_done);
+	reinit_completion(&dev->cmd_done);
 	serio_write(serio, 0);
 	serio_write(serio, 0);
 	serio_write(serio, HIL_PKT_CMD >> 8);
@@ -491,7 +491,7 @@ static int hil_dev_connect(struct serio *serio, struct serio_driver *drv)
 	if (error)
 		goto bail1;

-	init_completion(&dev->cmd_done);
+	reinit_completion(&dev->cmd_done);
 	serio_write(serio, 0);
 	serio_write(serio, 0);
 	serio_write(serio, HIL_PKT_CMD >> 8);
--
1.7.10.4


From - Thu Nov 08 21:37:10 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc fix for v3.19
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
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Hi Linus,

please pull one patch for the parisc architecture for kernel 3.19 from 

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.19-1

This patch unbreaks the kernel compilation on parisc with gcc-4.9.

Thanks,
Helge

----------------------------------------------------------------
John David Anglin (1):
      parisc: fix out-of-register compiler error in ldcw inline assembler function

 arch/parisc/include/asm/ldcw.h | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)
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Subject: Re: [PATCH 4/13] incorrect use of init_completion fixup
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On Fri, Dec 26, 2014 at 09:06:10AM +0100, Nicholas Mc Guire wrote:
> The successive init_completion calls should be reinit_completion calls.
> 
> patch against 3.19.0-rc1 linux-next
> 
> Acked-by: Helge Deller <deller@gmx.de>
> Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>

Applied, thank you.

> ---
>  drivers/input/keyboard/hil_kbd.c |    6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
> index 610a8af..5b152f2 100644
> --- a/drivers/input/keyboard/hil_kbd.c
> +++ b/drivers/input/keyboard/hil_kbd.c
> @@ -473,7 +473,7 @@ static int hil_dev_connect(struct serio *serio, struct serio_driver *drv)
>  	if (error)
>  		goto bail1;
> 
> -	init_completion(&dev->cmd_done);
> +	reinit_completion(&dev->cmd_done);
>  	serio_write(serio, 0);
>  	serio_write(serio, 0);
>  	serio_write(serio, HIL_PKT_CMD >> 8);
> @@ -482,7 +482,7 @@ static int hil_dev_connect(struct serio *serio, struct serio_driver *drv)
>  	if (error)
>  		goto bail1;
> 
> -	init_completion(&dev->cmd_done);
> +	reinit_completion(&dev->cmd_done);
>  	serio_write(serio, 0);
>  	serio_write(serio, 0);
>  	serio_write(serio, HIL_PKT_CMD >> 8);
> @@ -491,7 +491,7 @@ static int hil_dev_connect(struct serio *serio, struct serio_driver *drv)
>  	if (error)
>  		goto bail1;
> 
> -	init_completion(&dev->cmd_done);
> +	reinit_completion(&dev->cmd_done);
>  	serio_write(serio, 0);
>  	serio_write(serio, 0);
>  	serio_write(serio, HIL_PKT_CMD >> 8);
> --
> 1.7.10.4
> 

-- 
Dmitry
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Subject: Re: [PATCH repost 12/16] parisc/uaccess: fix sparse errors
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On Thu, Dec 25, 2014 at 11:37:45PM +0100, Helge Deller wrote:
> Hi Michael,
> 
> On 12/25/2014 10:29 AM, Michael S. Tsirkin wrote:
> >virtio wants to read bitwise types from userspace using get_user.  At the
> 
> I don't know the virtio code much yet, but does it makes sense to read bitwise types?
> Will virtio then get possible troubles because of endianess correct as well?

There's no conversion: we are reading from __virtio16 __user *
pointer into __virtio16 v value.

> Do you have a code example, or the sparse error message ?
> 
> Helge

Sure. the code is upstream now.
The warning is below.

sparse warnings: (new ones prefixed by >>)

>> drivers/vhost/vringh.c:554:18: sparse: cast to restricted __virtio16

vim +554 drivers/vhost/vringh.c

   538                                                           __virtio16 *p, u16 val))
   539  {
   540          if (!vrh->event_indices) {
   541                  /* Old-school; update flags. */
   542                  if (putu16(vrh, &vrh->vring.used->flags,
   543                             VRING_USED_F_NO_NOTIFY)) {
   544                          vringh_bad("Setting used flags %p",
   545                                     &vrh->vring.used->flags);
   546                  }
   547          }
   548  }
   549
   550  /* Userspace access helpers: in this case, addresses are really userspace. */
   551  static inline int getu16_user(const struct vringh *vrh, u16 *val, const __virtio16 *p)
   552  {
   553          __virtio16 v = 0;
 > 554          int rc = get_user(v, (__force __virtio16 __user *)p);
   555          *val = vringh16_to_cpu(vrh, v);
   556          return rc;
   557  }
   558
   559  static inline int putu16_user(const struct vringh *vrh, __virtio16 *p, u16 val)
   560  {
   561          __virtio16 v = cpu_to_vringh16(vrh, val);
   562          return put_user(v, (__force __virtio16 __user *)p);



> 
> >moment this triggers sparse errors, since the value is passed through an
> >integer.
> >
> >Fix that up using __force.
> >
> >Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> >---
> >  arch/parisc/include/asm/uaccess.h | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> >diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
> >index a5cb070..3a20da6 100644
> >--- a/arch/parisc/include/asm/uaccess.h
> >+++ b/arch/parisc/include/asm/uaccess.h
> >@@ -104,7 +104,7 @@ struct exception_data {
> >  	    }                                           \
> >  	}                                               \
> >  							\
> >-	(x) = (__typeof__(*(ptr))) __gu_val;            \
> >+	(x) = (__force __typeof__(*(ptr))) __gu_val;            \
> >  	__gu_err;                                       \
> >  })
> >
> >

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On Sat, 2014-12-27 at 18:14 +0200, Michael S. Tsirkin wrote:
> On Thu, Dec 25, 2014 at 11:37:45PM +0100, Helge Deller wrote:
> > Hi Michael,
> > 
> > On 12/25/2014 10:29 AM, Michael S. Tsirkin wrote:
> > >virtio wants to read bitwise types from userspace using get_user.  At the
> > 
> > I don't know the virtio code much yet, but does it makes sense to read bitwise types?
> > Will virtio then get possible troubles because of endianess correct as well?
> 
> There's no conversion: we are reading from __virtio16 __user *
> pointer into __virtio16 v value.
> 
> > Do you have a code example, or the sparse error message ?
> > 
> > Helge
> 
> Sure. the code is upstream now.
> The warning is below.
> 
> sparse warnings: (new ones prefixed by >>)
> 
> >> drivers/vhost/vringh.c:554:18: sparse: cast to restricted __virtio16
> 
> vim +554 drivers/vhost/vringh.c
> 
>    538                                                           __virtio16 *p, u16 val))
>    539  {
>    540          if (!vrh->event_indices) {
>    541                  /* Old-school; update flags. */
>    542                  if (putu16(vrh, &vrh->vring.used->flags,
>    543                             VRING_USED_F_NO_NOTIFY)) {
>    544                          vringh_bad("Setting used flags %p",
>    545                                     &vrh->vring.used->flags);
>    546                  }
>    547          }
>    548  }
>    549
>    550  /* Userspace access helpers: in this case, addresses are really userspace. */
>    551  static inline int getu16_user(const struct vringh *vrh, u16 *val, const __virtio16 *p)
>    552  {
>    553          __virtio16 v = 0;
>  > 554          int rc = get_user(v, (__force __virtio16 __user *)p);
>    555          *val = vringh16_to_cpu(vrh, v);
>    556          return rc;
>    557  }
>    558
>    559  static inline int putu16_user(const struct vringh *vrh, __virtio16 *p, u16 val)
>    560  {
>    561          __virtio16 v = cpu_to_vringh16(vrh, val);
>    562          return put_user(v, (__force __virtio16 __user *)p);

OK, parisc developers still being dense, but this does look like an
abuse of the bitwise type.  bitwise is supposed to be consumed by endian
specific accessors.  get/put_user have no endian tags because they
really can't do this ... the potential for width mismatch between the
user and kernel address spaces could cause havoc if people get this
wrong, so the warning looks correct to me.

If we take your proposed patch we lose the type checking on all
accessors because of the __force.  Why not, instead, alter your code to
tell the kernel you know what you're doing:

        __u16 v = 0;
        int rc = get_user(v, (__force __u16 __user *)p);
        *val = vringh16_to_cpu(vrh, (__force __virtio16)v);
        return rc;

That way the accessors still warn if anyone else tries this but your
warning is gone and the code basically says you knew the u16 was really
an endianness specific virtio quantity?

James



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Subject: Re: [PATCH repost 12/16] parisc/uaccess: fix sparse errors
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On Wed, Dec 31, 2014 at 09:17:20AM -0800, James Bottomley wrote:
> On Sat, 2014-12-27 at 18:14 +0200, Michael S. Tsirkin wrote:
> > On Thu, Dec 25, 2014 at 11:37:45PM +0100, Helge Deller wrote:
> > > Hi Michael,
> > > 
> > > On 12/25/2014 10:29 AM, Michael S. Tsirkin wrote:
> > > >virtio wants to read bitwise types from userspace using get_user.  At the
> > > 
> > > I don't know the virtio code much yet, but does it makes sense to read bitwise types?
> > > Will virtio then get possible troubles because of endianess correct as well?
> > 
> > There's no conversion: we are reading from __virtio16 __user *
> > pointer into __virtio16 v value.
> > 
> > > Do you have a code example, or the sparse error message ?
> > > 
> > > Helge
> > 
> > Sure. the code is upstream now.
> > The warning is below.
> > 
> > sparse warnings: (new ones prefixed by >>)
> > 
> > >> drivers/vhost/vringh.c:554:18: sparse: cast to restricted __virtio16
> > 
> > vim +554 drivers/vhost/vringh.c
> > 
> >    538                                                           __virtio16 *p, u16 val))
> >    539  {
> >    540          if (!vrh->event_indices) {
> >    541                  /* Old-school; update flags. */
> >    542                  if (putu16(vrh, &vrh->vring.used->flags,
> >    543                             VRING_USED_F_NO_NOTIFY)) {
> >    544                          vringh_bad("Setting used flags %p",
> >    545                                     &vrh->vring.used->flags);
> >    546                  }
> >    547          }
> >    548  }
> >    549
> >    550  /* Userspace access helpers: in this case, addresses are really userspace. */
> >    551  static inline int getu16_user(const struct vringh *vrh, u16 *val, const __virtio16 *p)
> >    552  {
> >    553          __virtio16 v = 0;
> >  > 554          int rc = get_user(v, (__force __virtio16 __user *)p);
> >    555          *val = vringh16_to_cpu(vrh, v);
> >    556          return rc;
> >    557  }
> >    558
> >    559  static inline int putu16_user(const struct vringh *vrh, __virtio16 *p, u16 val)
> >    560  {
> >    561          __virtio16 v = cpu_to_vringh16(vrh, val);
> >    562          return put_user(v, (__force __virtio16 __user *)p);
> 
> OK, parisc developers still being dense, but this does look like an
> abuse of the bitwise type.

To give you another example:

	__le16 __user *p;
	__le16 foo;
	int rc = get_user(v, p);

really should be fine, ATM this gives a warning.


>  bitwise is supposed to be consumed by endian
> specific accessors.

Surely, assignment is OK too? get_user is exactly that.

vringh16_to_cpu is an endian specific accessor.
Look up it's definition please. The reason for that __force is
because we are adding __user.
It's a decision Rusty made to reduce code duplication:
we have some code that handles both kernel and userspace pointers.

>  get/put_user have no endian tags because they
> really can't do this ... the potential for width mismatch between the
> user and kernel address spaces could cause havoc if people get this
> wrong, so the warning looks correct to me.


I'm sorry I don't understand.

Why is

	access_ok
	__get_user

safer than

	get_user

?

It does not trigger the warning, because
__get_user does not have the cast to long internally.

Also, on some architectures get_user does not cast to long
internally so there's no warning.

> If we take your proposed patch we lose the type checking on all
> accessors because of the __force.


Did you try?  In my testing, this is not at all true.

For example with my patch:


             u16 v = 0;
             int rc = get_user(v, (__force __virtio16 __user *)p);

correctly triggers a warning.



>  Why not, instead, alter your code to
> tell the kernel you know what you're doing:
> 
>         __u16 v = 0;
>         int rc = get_user(v, (__force __u16 __user *)p);
>         *val = vringh16_to_cpu(vrh, (__force __virtio16)v);
>         return rc;
> 
> That way the accessors still warn if anyone else tries this

Hmm I don't understand, sorry. Tries what?
Can you please show me an invalid use of get_user that
produces a warning currently but won't with my patch?

> but your
> warning is gone and the code basically says you knew the u16 was really
> an endianness specific virtio quantity?
> 
> James
> 


(__force __virtio16 __user *)
tells get_user exactly that pointer is to type __virtio16.
It does not get any more explicit.

What you are proposing is really discarding type
information by a bunch of __force calls.

I am very reluctant to do this.
In fact, because of the static checking I added,
conversion to virtio 1.0 went so smoothly:
most drivers worked right away after the conversion.
I'm very sure without static checking, or with
__force thrown around liberally, I would have



vringh specifically has one __force cast anyway because
it's mixing userspace and kernel pointers.

But, I also have an out of tree patch that use structures
like this:

	struct foo {
		__virtio16 bar;
	};


Now with my patches I can do:

       __virtio16 v = 0;
	struct foo __user *p;
       int rc = get_user(v, &p->bar);


-- 
MST

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On Wed, 2014-12-31 at 20:38 +0200, Michael S. Tsirkin wrote:
> On Wed, Dec 31, 2014 at 09:17:20AM -0800, James Bottomley wrote:
[...]
> > OK, parisc developers still being dense, but this does look like an
> > abuse of the bitwise type.
> 
> To give you another example:
> 
> 	__le16 __user *p;
> 	__le16 foo;
> 	int rc = get_user(v, p);
> 
> really should be fine, ATM this gives a warning.

OK, I think I've figured it out.  You're saying that casting __gu_val to
a bitwise annotated type is an automatic sparse failure because it has
to be a long in our assembly code to receive the load/store as a
register.  However, this is required for sparse to do the correct lvalue
type = rvalue type check in the assignment to x.  We were all thinking
the __force just killed these sparse type checks.

In that case, I think parisc is fine with this.

James


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To: Helge Deller <deller@gmx.de>
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On Tue, 2014-11-11 at 20:13 +0100, Helge Deller wrote:
> While testing kernel 3.18-rc4 I'm facing a problem with serial console.
> 
> I'm seeing at bootup this message:
> [   17.724000] console [ttyS0] disabled
> after that it's just hanging.
> 
> It seems as if ttyS0 is somehow being reprogrammed which then disturbs the
> serial ports on the receiver side (in my case a HP PCI Diva Serial [GSP] Multiport UART).
> Any idea what changed between 3.17 and 3.18 which have caused this behavior ?
> Full log below.
> 
> Helge
> 
> serial driver: drivers/tty/serial/8250/8250_pci.c
> 
> PCI info:
> 00:04.1 Serial controller: Hewlett-Packard Company Diva Serial [GSP] Multiport UART (rev 03) (prog-if 02 [16550])
>          Subsystem: Hewlett-Packard Company Device 1283
>          Flags: medium devsel, IRQ 70
>          Memory at ffffffff80000000 (32-bit, non-prefetchable) [size=4K]
>          I/O ports at 0040 [size=64]
>          Capabilities: [48] Power Management version 2
>          Kernel driver in use: serial
> 
> 
> dmesg after bootup:
> 
> [   17.708000] Serial: 8250/16550 driver, 8 ports, IRQ sharing enabled
> [   17.724000] serial 0000:00:04.1: enabling device (0142 -> 0143)
> [   17.724000] console [ttyS0] disabled
> [   17.880000] serial 0000:00:04.1: ttyS0 at MMIO 0xffffffff80000000 (irq = 70, base_baud = 115200) is a 16550A
> [   17.996000] console [ttyS0] enabled
> [   38.888000] INFO: rcu_sched detected stalls on CPUs/tasks: { 3} (detected by 1, t=5252 jiffies, g=-290, c=-291, q=2)
> [   38.888000] Task dump for CPU 3:
> [   38.888000] swapper/0       R  running task        0     1      0 0x00000004
> [   38.888000] Backtrace:
> [   38.888000]  [<0000000040200848>] vprintk_emit+0x570/0x5f8
> [   38.888000]  [<0000000040200bdc>] printk+0x64/0x78
> [   38.888000]  [<0000000040201fc0>] register_console+0x438/0x550
> [   38.888000]  [<0000000040688bb8>] uart_add_one_port+0x400/0x5d0
> [   38.888000]  [<000000004068e6d4>] serial8250_register_8250_port+0x3e4/0x448
> [   38.888000]  [<0000000040695f44>] pciserial_init_ports+0x22c/0x2c8
> [   38.888000]  [<0000000040696628>] pciserial_init_one+0x250/0x2e0
> [   38.888000]  [<00000000405f3880>] pci_device_probe+0xb0/0x150
> [   38.888000]  [<00000000406a8244>] driver_probe_device+0x204/0x570
> [   38.888000]  [<00000000406a8728>] __driver_attach+0xe0/0x158
> [   38.888000]  [<00000000406a4558>] bus_for_each_dev+0xd0/0x128
> [   38.888000]  [<00000000406a76f8>] driver_attach+0x48/0x60
> [   38.888000]  [<00000000406a6de8>] bus_add_driver+0x268/0x460
> [   38.888000]  [<00000000406a915c>] driver_register+0x124/0x1d0
> [   38.888000]  [<00000000405f336c>] __pci_register_driver+0x64/0x78
> [   38.888000]  [<00000000401375e4>] serial_pci_driver_init+0x44/0x58
> 
> [   59.084000] timer_interrupt(CPU 3): delayed! cycles 85EBC4C7D rem 2BAF83  next/now 2765C08677/276594D6F4
> [   59.140000] bootconsole [ttyB0] disabled
> [   59.144000] serial 0000:00:04.1: ttyS1 at MMIO 0xffffffff80000008 (irq = 70, base_baud = 115200) is a 16450
> [   59.164000] serial 0000:00:04.1: ttyS2 at MMIO 0xffffffff80000010 (irq = 70, base_baud = 115200) is a 16550A

I confirm this behaviour on the Mako system as well.  In my case, 3.18
so royally screws up the serial port that even a power cycle won't
recover the console connection to the MP (a sort of parisc equivalent of
a BMC) and I have to go down to the machine room to physically yank the
power from the system to power down the MP and get the console back.
I've added a cc to linux-serial.  It looks like there are 20 non merge
commits between 3.17 and 3.18.  I'm betting because of the MP problem
it's got to be somewhere in the serial driver:

cd92208 tty: serial: 8250_mtk: Fix quot calculation
716e115 serial: 8250_pci: remove rts_n override from Baytrail quirk
1ede7dc serial: 8250: Add Quark X1000 to 8250_pci.c
9137568 tty: serial: 8250_core: remove UART_IER_RDI in
serial8250_stop_rx()
59b3e89 tty: serial: 8250_core: use the ->line argument as a hint in
serial8250_find_match_or_unused()
0aa525d tty: serial: 8250_core: read only RX if there is something in
the FIFO
d74d5d1 tty: serial: 8250_core: add run time pm
234abab tty: serial: 8250_core: allow to set ->throttle / ->unthrottle
callbacks
2989708 serial: 8250_pci: Add PCI IDs for Intel Braswell
9a1870c serial: 8250: don't use slave_id of dma_slave_config
b4756f4 tty: serial: 8250: Add Mediatek UART driver
0b4af1d serial/8250_core: Add reference to uacess.h
b99b121 tty: serial: 8250_core: allow to overwrite & export
serial8250_startup()
ae14a79 tty: serial: 8250_core: provide a function to export
uart_8250_port
5435d20 serial: 8250: Document serial8250_modem_status() locking
a6eec92 Revert "serial: uart: add hw flow control support configuration"
c10b739 serial: 8250_hp300: trivial: fix symbol name in #warning message
28e3fb6 serial: Add support for Fintek F81216A LPC to 4 UART
e676253 serial/8250: Add support for RS485 IOCTLs
91f9d33 module: make it possible to have unsafe, tainting module params

Bisecting is going to be a pain because of the physical power cycle
problem on a racked system.

James



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From - Thu Nov 08 21:37:10 2018
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From: Peter Hurley <peter@hurleysoftware.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial
Subject: Re: serial console problem with kernel 3.18.0-rc4
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On 12/31/2014 08:33 PM, James Bottomley wrote:
> On Tue, 2014-11-11 at 20:13 +0100, Helge Deller wrote:
>> While testing kernel 3.18-rc4 I'm facing a problem with serial console.
>>
>> I'm seeing at bootup this message:
>> [   17.724000] console [ttyS0] disabled
>> after that it's just hanging.
>>
>> It seems as if ttyS0 is somehow being reprogrammed which then disturbs the
>> serial ports on the receiver side (in my case a HP PCI Diva Serial [GSP] Multiport UART).
>> Any idea what changed between 3.17 and 3.18 which have caused this behavior ?
>> Full log below.
>>
>> Helge

I apologize that I did not see this email back in November; I was having some
email trouble at the time.

>> serial driver: drivers/tty/serial/8250/8250_pci.c
>>
>> PCI info:
>> 00:04.1 Serial controller: Hewlett-Packard Company Diva Serial [GSP] Multiport UART (rev 03) (prog-if 02 [16550])
>>          Subsystem: Hewlett-Packard Company Device 1283
>>          Flags: medium devsel, IRQ 70
>>          Memory at ffffffff80000000 (32-bit, non-prefetchable) [size=4K]
>>          I/O ports at 0040 [size=64]
>>          Capabilities: [48] Power Management version 2
>>          Kernel driver in use: serial
>>
>>
>> dmesg after bootup:
>>
>> [   17.708000] Serial: 8250/16550 driver, 8 ports, IRQ sharing enabled
>> [   17.724000] serial 0000:00:04.1: enabling device (0142 -> 0143)
>> [   17.724000] console [ttyS0] disabled
>> [   17.880000] serial 0000:00:04.1: ttyS0 at MMIO 0xffffffff80000000 (irq = 70, base_baud = 115200) is a 16550A
>> [   17.996000] console [ttyS0] enabled
>> [   38.888000] INFO: rcu_sched detected stalls on CPUs/tasks: { 3} (detected by 1, t=5252 jiffies, g=-290, c=-291, q=2)
>> [   38.888000] Task dump for CPU 3:
>> [   38.888000] swapper/0       R  running task        0     1      0 0x00000004
>> [   38.888000] Backtrace:
>> [   38.888000]  [<0000000040200848>] vprintk_emit+0x570/0x5f8
>> [   38.888000]  [<0000000040200bdc>] printk+0x64/0x78
>> [   38.888000]  [<0000000040201fc0>] register_console+0x438/0x550
>> [   38.888000]  [<0000000040688bb8>] uart_add_one_port+0x400/0x5d0
>> [   38.888000]  [<000000004068e6d4>] serial8250_register_8250_port+0x3e4/0x448
>> [   38.888000]  [<0000000040695f44>] pciserial_init_ports+0x22c/0x2c8
>> [   38.888000]  [<0000000040696628>] pciserial_init_one+0x250/0x2e0
>> [   38.888000]  [<00000000405f3880>] pci_device_probe+0xb0/0x150
>> [   38.888000]  [<00000000406a8244>] driver_probe_device+0x204/0x570
>> [   38.888000]  [<00000000406a8728>] __driver_attach+0xe0/0x158
>> [   38.888000]  [<00000000406a4558>] bus_for_each_dev+0xd0/0x128
>> [   38.888000]  [<00000000406a76f8>] driver_attach+0x48/0x60
>> [   38.888000]  [<00000000406a6de8>] bus_add_driver+0x268/0x460
>> [   38.888000]  [<00000000406a915c>] driver_register+0x124/0x1d0
>> [   38.888000]  [<00000000405f336c>] __pci_register_driver+0x64/0x78
>> [   38.888000]  [<00000000401375e4>] serial_pci_driver_init+0x44/0x58
>>
>> [   59.084000] timer_interrupt(CPU 3): delayed! cycles 85EBC4C7D rem 2BAF83  next/now 2765C08677/276594D6F4
>> [   59.140000] bootconsole [ttyB0] disabled
>> [   59.144000] serial 0000:00:04.1: ttyS1 at MMIO 0xffffffff80000008 (irq = 70, base_baud = 115200) is a 16450
>> [   59.164000] serial 0000:00:04.1: ttyS2 at MMIO 0xffffffff80000010 (irq = 70, base_baud = 115200) is a 16550A
> 
> I confirm this behaviour on the Mako system as well.  In my case, 3.18
> so royally screws up the serial port that even a power cycle won't
> recover the console connection to the MP (a sort of parisc equivalent of
> a BMC) and I have to go down to the machine room to physically yank the
> power from the system to power down the MP and get the console back.
> I've added a cc to linux-serial.  It looks like there are 20 non merge
> commits between 3.17 and 3.18.  I'm betting because of the MP problem
> it's got to be somewhere in the serial driver:
> 
> cd92208 tty: serial: 8250_mtk: Fix quot calculation
> 716e115 serial: 8250_pci: remove rts_n override from Baytrail quirk
> 1ede7dc serial: 8250: Add Quark X1000 to 8250_pci.c
> 9137568 tty: serial: 8250_core: remove UART_IER_RDI in
> serial8250_stop_rx()


> 59b3e89 tty: serial: 8250_core: use the ->line argument as a hint in
> serial8250_find_match_or_unused()
^^^^^^^^^
This commit would be my first guess, but a complete dmesg up to boot
failure would be helpful in narrowing down the problem. There are about
50 ways to initialize the 8250 port (which is part of the problem).

Regards,
Peter Hurley


> 0aa525d tty: serial: 8250_core: read only RX if there is something in
> the FIFO
> d74d5d1 tty: serial: 8250_core: add run time pm
> 234abab tty: serial: 8250_core: allow to set ->throttle / ->unthrottle
> callbacks
> 2989708 serial: 8250_pci: Add PCI IDs for Intel Braswell
> 9a1870c serial: 8250: don't use slave_id of dma_slave_config
> b4756f4 tty: serial: 8250: Add Mediatek UART driver
> 0b4af1d serial/8250_core: Add reference to uacess.h
> b99b121 tty: serial: 8250_core: allow to overwrite & export
> serial8250_startup()
> ae14a79 tty: serial: 8250_core: provide a function to export
> uart_8250_port
> 5435d20 serial: 8250: Document serial8250_modem_status() locking
> a6eec92 Revert "serial: uart: add hw flow control support configuration"
> c10b739 serial: 8250_hp300: trivial: fix symbol name in #warning message
> 28e3fb6 serial: Add support for Fintek F81216A LPC to 4 UART
> e676253 serial/8250: Add support for RS485 IOCTLs
> 91f9d33 module: make it possible to have unsafe, tainting module params
> 
> Bisecting is going to be a pain because of the physical power cycle
> problem on a racked system.


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From - Thu Nov 08 21:37:10 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial
Subject: Re: serial console problem with kernel 3.18.0-rc4
Date: Thu, 01 Jan 2015 00:52:09 -0800
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On Wed, 2014-12-31 at 23:56 -0500, Peter Hurley wrote:
> On 12/31/2014 08:33 PM, James Bottomley wrote:
> > On Tue, 2014-11-11 at 20:13 +0100, Helge Deller wrote:
> >> While testing kernel 3.18-rc4 I'm facing a problem with serial console.
> >>
> >> I'm seeing at bootup this message:
> >> [   17.724000] console [ttyS0] disabled
> >> after that it's just hanging.
> >>
> >> It seems as if ttyS0 is somehow being reprogrammed which then disturbs the
> >> serial ports on the receiver side (in my case a HP PCI Diva Serial [GSP] Multiport UART).
> >> Any idea what changed between 3.17 and 3.18 which have caused this behavior ?
> >> Full log below.
> >>
> >> Helge
> 
> I apologize that I did not see this email back in November; I was having some
> email trouble at the time.
> 
> >> serial driver: drivers/tty/serial/8250/8250_pci.c
> >>
> >> PCI info:
> >> 00:04.1 Serial controller: Hewlett-Packard Company Diva Serial [GSP] Multiport UART (rev 03) (prog-if 02 [16550])
> >>          Subsystem: Hewlett-Packard Company Device 1283
> >>          Flags: medium devsel, IRQ 70
> >>          Memory at ffffffff80000000 (32-bit, non-prefetchable) [size=4K]
> >>          I/O ports at 0040 [size=64]
> >>          Capabilities: [48] Power Management version 2
> >>          Kernel driver in use: serial
> >>
> >>
> >> dmesg after bootup:
> >>
> >> [   17.708000] Serial: 8250/16550 driver, 8 ports, IRQ sharing enabled
> >> [   17.724000] serial 0000:00:04.1: enabling device (0142 -> 0143)
> >> [   17.724000] console [ttyS0] disabled
> >> [   17.880000] serial 0000:00:04.1: ttyS0 at MMIO 0xffffffff80000000 (irq = 70, base_baud = 115200) is a 16550A
> >> [   17.996000] console [ttyS0] enabled
> >> [   38.888000] INFO: rcu_sched detected stalls on CPUs/tasks: { 3} (detected by 1, t=5252 jiffies, g=-290, c=-291, q=2)
> >> [   38.888000] Task dump for CPU 3:
> >> [   38.888000] swapper/0       R  running task        0     1      0 0x00000004
> >> [   38.888000] Backtrace:
> >> [   38.888000]  [<0000000040200848>] vprintk_emit+0x570/0x5f8
> >> [   38.888000]  [<0000000040200bdc>] printk+0x64/0x78
> >> [   38.888000]  [<0000000040201fc0>] register_console+0x438/0x550
> >> [   38.888000]  [<0000000040688bb8>] uart_add_one_port+0x400/0x5d0
> >> [   38.888000]  [<000000004068e6d4>] serial8250_register_8250_port+0x3e4/0x448
> >> [   38.888000]  [<0000000040695f44>] pciserial_init_ports+0x22c/0x2c8
> >> [   38.888000]  [<0000000040696628>] pciserial_init_one+0x250/0x2e0
> >> [   38.888000]  [<00000000405f3880>] pci_device_probe+0xb0/0x150
> >> [   38.888000]  [<00000000406a8244>] driver_probe_device+0x204/0x570
> >> [   38.888000]  [<00000000406a8728>] __driver_attach+0xe0/0x158
> >> [   38.888000]  [<00000000406a4558>] bus_for_each_dev+0xd0/0x128
> >> [   38.888000]  [<00000000406a76f8>] driver_attach+0x48/0x60
> >> [   38.888000]  [<00000000406a6de8>] bus_add_driver+0x268/0x460
> >> [   38.888000]  [<00000000406a915c>] driver_register+0x124/0x1d0
> >> [   38.888000]  [<00000000405f336c>] __pci_register_driver+0x64/0x78
> >> [   38.888000]  [<00000000401375e4>] serial_pci_driver_init+0x44/0x58
> >>
> >> [   59.084000] timer_interrupt(CPU 3): delayed! cycles 85EBC4C7D rem 2BAF83  next/now 2765C08677/276594D6F4
> >> [   59.140000] bootconsole [ttyB0] disabled
> >> [   59.144000] serial 0000:00:04.1: ttyS1 at MMIO 0xffffffff80000008 (irq = 70, base_baud = 115200) is a 16450
> >> [   59.164000] serial 0000:00:04.1: ttyS2 at MMIO 0xffffffff80000010 (irq = 70, base_baud = 115200) is a 16550A
> > 
> > I confirm this behaviour on the Mako system as well.  In my case, 3.18
> > so royally screws up the serial port that even a power cycle won't
> > recover the console connection to the MP (a sort of parisc equivalent of
> > a BMC) and I have to go down to the machine room to physically yank the
> > power from the system to power down the MP and get the console back.
> > I've added a cc to linux-serial.  It looks like there are 20 non merge
> > commits between 3.17 and 3.18.  I'm betting because of the MP problem
> > it's got to be somewhere in the serial driver:
> > 
> > cd92208 tty: serial: 8250_mtk: Fix quot calculation
> > 716e115 serial: 8250_pci: remove rts_n override from Baytrail quirk
> > 1ede7dc serial: 8250: Add Quark X1000 to 8250_pci.c
> > 9137568 tty: serial: 8250_core: remove UART_IER_RDI in
> > serial8250_stop_rx()
> 
> 
> > 59b3e89 tty: serial: 8250_core: use the ->line argument as a hint in
> > serial8250_find_match_or_unused()
> ^^^^^^^^^
> This commit would be my first guess, but a complete dmesg up to boot
> failure would be helpful in narrowing down the problem. There are about
> 50 ways to initialize the 8250 port (which is part of the problem).

Well, bisection says it's not this one.  Unfortunately, we crap out at
this one:

ae14a79 tty: serial: 8250_core: provide a function to export
uart_8250_port

  CC      drivers/tty/serial/8250/8250_core.o
drivers/tty/serial/8250/8250_core.c: In function 'serial8250_ioctl':
drivers/tty/serial/8250/8250_core.c:2857: error: 'TIOCSRS485' undeclared
(first use in this function)
drivers/tty/serial/8250/8250_core.c:2857: error: (Each undeclared
identifier is reported only once
drivers/tty/serial/8250/8250_core.c:2857: error: for each function it
appears in.)
drivers/tty/serial/8250/8250_core.c:2858: error: implicit declaration of
function 'copy_from_user'
drivers/tty/serial/8250/8250_core.c:2869: error: 'TIOCGRS485' undeclared
(first use in this function)
drivers/tty/serial/8250/8250_core.c:2870: error: implicit declaration of
function 'copy_to_user'
make[4]: *** [drivers/tty/serial/8250/8250_core.o] Error 1
make[3]: *** [drivers/tty/serial/8250] Error 2
make[2]: *** [drivers/tty/serial] Error 2
make[1]: *** [drivers/tty] Error 2

I'll work out how to fix it in the morning ... but really, having a
bisectable tree is supposed to be the first rule of a maintainer.

James



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From - Thu Nov 08 21:37:10 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial
Subject: Re: serial console problem with kernel 3.18.0-rc4
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Cc: Helge Deller <deller@gmx.de>, linux-serial@vger.kernel.org,
	linux-parisc <linux-parisc@vger.kernel.org>,
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On Thu, 2015-01-01 at 00:52 -0800, James Bottomley wrote:
> On Wed, 2014-12-31 at 23:56 -0500, Peter Hurley wrote:
> > On 12/31/2014 08:33 PM, James Bottomley wrote:
> > > On Tue, 2014-11-11 at 20:13 +0100, Helge Deller wrote:
> > >> While testing kernel 3.18-rc4 I'm facing a problem with serial console.
> > >>
> > >> I'm seeing at bootup this message:
> > >> [   17.724000] console [ttyS0] disabled
> > >> after that it's just hanging.
> > >>
> > >> It seems as if ttyS0 is somehow being reprogrammed which then disturbs the
> > >> serial ports on the receiver side (in my case a HP PCI Diva Serial [GSP] Multiport UART).
> > >> Any idea what changed between 3.17 and 3.18 which have caused this behavior ?
> > >> Full log below.
> > >>
> > >> Helge
> > 
> > I apologize that I did not see this email back in November; I was having some
> > email trouble at the time.
> > 
> > >> serial driver: drivers/tty/serial/8250/8250_pci.c
> > >>
> > >> PCI info:
> > >> 00:04.1 Serial controller: Hewlett-Packard Company Diva Serial [GSP] Multiport UART (rev 03) (prog-if 02 [16550])
> > >>          Subsystem: Hewlett-Packard Company Device 1283
> > >>          Flags: medium devsel, IRQ 70
> > >>          Memory at ffffffff80000000 (32-bit, non-prefetchable) [size=4K]
> > >>          I/O ports at 0040 [size=64]
> > >>          Capabilities: [48] Power Management version 2
> > >>          Kernel driver in use: serial
> > >>
> > >>
> > >> dmesg after bootup:
> > >>
> > >> [   17.708000] Serial: 8250/16550 driver, 8 ports, IRQ sharing enabled
> > >> [   17.724000] serial 0000:00:04.1: enabling device (0142 -> 0143)
> > >> [   17.724000] console [ttyS0] disabled
> > >> [   17.880000] serial 0000:00:04.1: ttyS0 at MMIO 0xffffffff80000000 (irq = 70, base_baud = 115200) is a 16550A
> > >> [   17.996000] console [ttyS0] enabled
> > >> [   38.888000] INFO: rcu_sched detected stalls on CPUs/tasks: { 3} (detected by 1, t=5252 jiffies, g=-290, c=-291, q=2)
> > >> [   38.888000] Task dump for CPU 3:
> > >> [   38.888000] swapper/0       R  running task        0     1      0 0x00000004
> > >> [   38.888000] Backtrace:
> > >> [   38.888000]  [<0000000040200848>] vprintk_emit+0x570/0x5f8
> > >> [   38.888000]  [<0000000040200bdc>] printk+0x64/0x78
> > >> [   38.888000]  [<0000000040201fc0>] register_console+0x438/0x550
> > >> [   38.888000]  [<0000000040688bb8>] uart_add_one_port+0x400/0x5d0
> > >> [   38.888000]  [<000000004068e6d4>] serial8250_register_8250_port+0x3e4/0x448
> > >> [   38.888000]  [<0000000040695f44>] pciserial_init_ports+0x22c/0x2c8
> > >> [   38.888000]  [<0000000040696628>] pciserial_init_one+0x250/0x2e0
> > >> [   38.888000]  [<00000000405f3880>] pci_device_probe+0xb0/0x150
> > >> [   38.888000]  [<00000000406a8244>] driver_probe_device+0x204/0x570
> > >> [   38.888000]  [<00000000406a8728>] __driver_attach+0xe0/0x158
> > >> [   38.888000]  [<00000000406a4558>] bus_for_each_dev+0xd0/0x128
> > >> [   38.888000]  [<00000000406a76f8>] driver_attach+0x48/0x60
> > >> [   38.888000]  [<00000000406a6de8>] bus_add_driver+0x268/0x460
> > >> [   38.888000]  [<00000000406a915c>] driver_register+0x124/0x1d0
> > >> [   38.888000]  [<00000000405f336c>] __pci_register_driver+0x64/0x78
> > >> [   38.888000]  [<00000000401375e4>] serial_pci_driver_init+0x44/0x58
> > >>
> > >> [   59.084000] timer_interrupt(CPU 3): delayed! cycles 85EBC4C7D rem 2BAF83  next/now 2765C08677/276594D6F4
> > >> [   59.140000] bootconsole [ttyB0] disabled
> > >> [   59.144000] serial 0000:00:04.1: ttyS1 at MMIO 0xffffffff80000008 (irq = 70, base_baud = 115200) is a 16450
> > >> [   59.164000] serial 0000:00:04.1: ttyS2 at MMIO 0xffffffff80000010 (irq = 70, base_baud = 115200) is a 16550A
> > > 
> > > I confirm this behaviour on the Mako system as well.  In my case, 3.18
> > > so royally screws up the serial port that even a power cycle won't
> > > recover the console connection to the MP (a sort of parisc equivalent of
> > > a BMC) and I have to go down to the machine room to physically yank the
> > > power from the system to power down the MP and get the console back.
> > > I've added a cc to linux-serial.  It looks like there are 20 non merge
> > > commits between 3.17 and 3.18.  I'm betting because of the MP problem
> > > it's got to be somewhere in the serial driver:
> > > 
> > > cd92208 tty: serial: 8250_mtk: Fix quot calculation
> > > 716e115 serial: 8250_pci: remove rts_n override from Baytrail quirk
> > > 1ede7dc serial: 8250: Add Quark X1000 to 8250_pci.c
> > > 9137568 tty: serial: 8250_core: remove UART_IER_RDI in
> > > serial8250_stop_rx()
> > 
> > 
> > > 59b3e89 tty: serial: 8250_core: use the ->line argument as a hint in
> > > serial8250_find_match_or_unused()
> > ^^^^^^^^^
> > This commit would be my first guess, but a complete dmesg up to boot
> > failure would be helpful in narrowing down the problem. There are about
> > 50 ways to initialize the 8250 port (which is part of the problem).
> 
> Well, bisection says it's not this one.  Unfortunately, we crap out at
> this one:
> 
> ae14a79 tty: serial: 8250_core: provide a function to export
> uart_8250_port
> 
>   CC      drivers/tty/serial/8250/8250_core.o
> drivers/tty/serial/8250/8250_core.c: In function 'serial8250_ioctl':
> drivers/tty/serial/8250/8250_core.c:2857: error: 'TIOCSRS485' undeclared
> (first use in this function)
> drivers/tty/serial/8250/8250_core.c:2857: error: (Each undeclared
> identifier is reported only once
> drivers/tty/serial/8250/8250_core.c:2857: error: for each function it
> appears in.)
> drivers/tty/serial/8250/8250_core.c:2858: error: implicit declaration of
> function 'copy_from_user'
> drivers/tty/serial/8250/8250_core.c:2869: error: 'TIOCGRS485' undeclared
> (first use in this function)
> drivers/tty/serial/8250/8250_core.c:2870: error: implicit declaration of
> function 'copy_to_user'
> make[4]: *** [drivers/tty/serial/8250/8250_core.o] Error 1
> make[3]: *** [drivers/tty/serial/8250] Error 2
> make[2]: *** [drivers/tty/serial] Error 2
> make[1]: *** [drivers/tty] Error 2
> 
> I'll work out how to fix it in the morning ... but really, having a
> bisectable tree is supposed to be the first rule of a maintainer.

OK, I managed to bisect the rest of the tree compensating for the build
failure.  This is the failing commit (cc's added):

commit 2f2dafe77df2c78e189a9fa6b1879dffd06ae5a1
Author: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Date:   Mon Sep 1 20:49:43 2014 +0530

    serial: serial_core.c: printk replacement
 
I've confirmed by reverting against 3.19-rc2 and the system boots again.
This looks like a symptom of underlying problems within the dev_ print
helper accessors, so I'll dig further, but we'll need this reverted in
the meantime.

James


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From - Thu Nov 08 21:37:10 2018
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Subject: Re: serial console problem with kernel 3.18.0-rc4
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On Wed, 2014-12-31 at 17:33 -0800, James Bottomley wrote:
> I confirm this behaviour on the Mako system as well.  In my case, 3.18
> so royally screws up the serial port that even a power cycle won't
> recover the console connection to the MP (a sort of parisc equivalent of
> a BMC) and I have to go down to the machine room to physically yank the
> power from the system to power down the MP and get the console back.

For those in parisc land following along, I've discovered that a remote
power down followed by a diagnostic reset of the MP will reconnect the
console, thus obviating trips to unplug the actual system.

James


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From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
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Subject: Re: serial console problem with kernel 3.18.0-rc4
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On Friday 02 January 2015 03:36 AM, James Bottomley wrote:
> On Thu, 2015-01-01 at 00:52 -0800, James Bottomley wrote:
>> On Wed, 2014-12-31 at 23:56 -0500, Peter Hurley wrote:
>>> On 12/31/2014 08:33 PM, James Bottomley wrote:
>>>> On Tue, 2014-11-11 at 20:13 +0100, Helge Deller wrote:
>>>>> While testing kernel 3.18-rc4 I'm facing a problem with serial console.
>>>>>
>>>>> I'm seeing at bootup this message:
>>>>> [   17.724000] console [ttyS0] disabled
>>>>> after that it's just hanging.
>>>>>
>>>>> It seems as if ttyS0 is somehow being reprogrammed which then disturbs the
>>>>> serial ports on the receiver side (in my case a HP PCI Diva Serial [GSP] Multiport UART).
>>>>> Any idea what changed between 3.17 and 3.18 which have caused this behavior ?
>>>>> Full log below.
>>>>>
>>>>> Helge
>>> I apologize that I did not see this email back in November; I was having some
>>> email trouble at the time.
>>>
>>>>> serial driver: drivers/tty/serial/8250/8250_pci.c
>>>>>
>>>>> PCI info:
>>>>> 00:04.1 Serial controller: Hewlett-Packard Company Diva Serial [GSP] Multiport UART (rev 03) (prog-if 02 [16550])
>>>>>           Subsystem: Hewlett-Packard Company Device 1283
>>>>>           Flags: medium devsel, IRQ 70
>>>>>           Memory at ffffffff80000000 (32-bit, non-prefetchable) [size=4K]
>>>>>           I/O ports at 0040 [size=64]
>>>>>           Capabilities: [48] Power Management version 2
>>>>>           Kernel driver in use: serial
>>>>>
>>>>>
>>>>> dmesg after bootup:
>>>>>
>>>>> [   17.708000] Serial: 8250/16550 driver, 8 ports, IRQ sharing enabled
>>>>> [   17.724000] serial 0000:00:04.1: enabling device (0142 -> 0143)
>>>>> [   17.724000] console [ttyS0] disabled
>>>>> [   17.880000] serial 0000:00:04.1: ttyS0 at MMIO 0xffffffff80000000 (irq = 70, base_baud = 115200) is a 16550A
>>>>> [   17.996000] console [ttyS0] enabled
>>>>> [   38.888000] INFO: rcu_sched detected stalls on CPUs/tasks: { 3} (detected by 1, t=5252 jiffies, g=-290, c=-291, q=2)
>>>>> [   38.888000] Task dump for CPU 3:
>>>>> [   38.888000] swapper/0       R  running task        0     1      0 0x00000004
>>>>> [   38.888000] Backtrace:
>>>>> [   38.888000]  [<0000000040200848>] vprintk_emit+0x570/0x5f8
>>>>> [   38.888000]  [<0000000040200bdc>] printk+0x64/0x78
>>>>> [   38.888000]  [<0000000040201fc0>] register_console+0x438/0x550
>>>>> [   38.888000]  [<0000000040688bb8>] uart_add_one_port+0x400/0x5d0
>>>>> [   38.888000]  [<000000004068e6d4>] serial8250_register_8250_port+0x3e4/0x448
>>>>> [   38.888000]  [<0000000040695f44>] pciserial_init_ports+0x22c/0x2c8
>>>>> [   38.888000]  [<0000000040696628>] pciserial_init_one+0x250/0x2e0
>>>>> [   38.888000]  [<00000000405f3880>] pci_device_probe+0xb0/0x150
>>>>> [   38.888000]  [<00000000406a8244>] driver_probe_device+0x204/0x570
>>>>> [   38.888000]  [<00000000406a8728>] __driver_attach+0xe0/0x158
>>>>> [   38.888000]  [<00000000406a4558>] bus_for_each_dev+0xd0/0x128
>>>>> [   38.888000]  [<00000000406a76f8>] driver_attach+0x48/0x60
>>>>> [   38.888000]  [<00000000406a6de8>] bus_add_driver+0x268/0x460
>>>>> [   38.888000]  [<00000000406a915c>] driver_register+0x124/0x1d0
>>>>> [   38.888000]  [<00000000405f336c>] __pci_register_driver+0x64/0x78
>>>>> [   38.888000]  [<00000000401375e4>] serial_pci_driver_init+0x44/0x58
>>>>>
>>>>> [   59.084000] timer_interrupt(CPU 3): delayed! cycles 85EBC4C7D rem 2BAF83  next/now 2765C08677/276594D6F4
>>>>> [   59.140000] bootconsole [ttyB0] disabled
>>>>> [   59.144000] serial 0000:00:04.1: ttyS1 at MMIO 0xffffffff80000008 (irq = 70, base_baud = 115200) is a 16450
>>>>> [   59.164000] serial 0000:00:04.1: ttyS2 at MMIO 0xffffffff80000010 (irq = 70, base_baud = 115200) is a 16550A
>>>> I confirm this behaviour on the Mako system as well.  In my case, 3.18
>>>> so royally screws up the serial port that even a power cycle won't
>>>> recover the console connection to the MP (a sort of parisc equivalent of
>>>> a BMC) and I have to go down to the machine room to physically yank the
>>>> power from the system to power down the MP and get the console back.
>>>> I've added a cc to linux-serial.  It looks like there are 20 non merge
>>>> commits between 3.17 and 3.18.  I'm betting because of the MP problem
>>>> it's got to be somewhere in the serial driver:
>>>>
>>>> cd92208 tty: serial: 8250_mtk: Fix quot calculation
>>>> 716e115 serial: 8250_pci: remove rts_n override from Baytrail quirk
>>>> 1ede7dc serial: 8250: Add Quark X1000 to 8250_pci.c
>>>> 9137568 tty: serial: 8250_core: remove UART_IER_RDI in
>>>> serial8250_stop_rx()
>>>
>>>> 59b3e89 tty: serial: 8250_core: use the ->line argument as a hint in
>>>> serial8250_find_match_or_unused()
>>> ^^^^^^^^^
>>> This commit would be my first guess, but a complete dmesg up to boot
>>> failure would be helpful in narrowing down the problem. There are about
>>> 50 ways to initialize the 8250 port (which is part of the problem).
>> Well, bisection says it's not this one.  Unfortunately, we crap out at
>> this one:
>>
>> ae14a79 tty: serial: 8250_core: provide a function to export
>> uart_8250_port
>>
>>    CC      drivers/tty/serial/8250/8250_core.o
>> drivers/tty/serial/8250/8250_core.c: In function 'serial8250_ioctl':
>> drivers/tty/serial/8250/8250_core.c:2857: error: 'TIOCSRS485' undeclared
>> (first use in this function)
>> drivers/tty/serial/8250/8250_core.c:2857: error: (Each undeclared
>> identifier is reported only once
>> drivers/tty/serial/8250/8250_core.c:2857: error: for each function it
>> appears in.)
>> drivers/tty/serial/8250/8250_core.c:2858: error: implicit declaration of
>> function 'copy_from_user'
>> drivers/tty/serial/8250/8250_core.c:2869: error: 'TIOCGRS485' undeclared
>> (first use in this function)
>> drivers/tty/serial/8250/8250_core.c:2870: error: implicit declaration of
>> function 'copy_to_user'
>> make[4]: *** [drivers/tty/serial/8250/8250_core.o] Error 1
>> make[3]: *** [drivers/tty/serial/8250] Error 2
>> make[2]: *** [drivers/tty/serial] Error 2
>> make[1]: *** [drivers/tty] Error 2
>>
>> I'll work out how to fix it in the morning ... but really, having a
>> bisectable tree is supposed to be the first rule of a maintainer.
> OK, I managed to bisect the rest of the tree compensating for the build
> failure.  This is the failing commit (cc's added):
>
> commit 2f2dafe77df2c78e189a9fa6b1879dffd06ae5a1
> Author: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
> Date:   Mon Sep 1 20:49:43 2014 +0530
>
>      serial: serial_core.c: printk replacement
>   
> I've confirmed by reverting against 3.19-rc2 and the system boots again.
> This looks like a symptom of underlying problems within the dev_ print
> helper accessors, so I'll dig further, but we'll need this reverted in
> the meantime.
Sure.
can dev_print hang the machine? if dev is NULL, it will just print using 
printk.
in vprintk_emit(), there is an Ouch for printk recursing into itself. 
can that be the cause?
and, can i help you somehow to find out the root cause of this ?

thanks
sudip
>
> James
>
>

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: serial console problem with kernel 3.18.0-rc4
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Cc: Peter Hurley <peter@hurleysoftware.com>,
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	linux-parisc <linux-parisc@vger.kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
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On Fri, 2015-01-02 at 11:04 +0530, Sudip Mukherjee wrote:
> On Friday 02 January 2015 03:36 AM, James Bottomley wrote:
> > On Thu, 2015-01-01 at 00:52 -0800, James Bottomley wrote:
> >> On Wed, 2014-12-31 at 23:56 -0500, Peter Hurley wrote:
> >>> On 12/31/2014 08:33 PM, James Bottomley wrote:
> >>>> On Tue, 2014-11-11 at 20:13 +0100, Helge Deller wrote:
> >>>>> While testing kernel 3.18-rc4 I'm facing a problem with serial console.
> >>>>>
> >>>>> I'm seeing at bootup this message:
> >>>>> [   17.724000] console [ttyS0] disabled
> >>>>> after that it's just hanging.
> >>>>>
> >>>>> It seems as if ttyS0 is somehow being reprogrammed which then disturbs the
> >>>>> serial ports on the receiver side (in my case a HP PCI Diva Serial [GSP] Multiport UART).
> >>>>> Any idea what changed between 3.17 and 3.18 which have caused this behavior ?
> >>>>> Full log below.
> >>>>>
> >>>>> Helge
> >>> I apologize that I did not see this email back in November; I was having some
> >>> email trouble at the time.
> >>>
> >>>>> serial driver: drivers/tty/serial/8250/8250_pci.c
> >>>>>
> >>>>> PCI info:
> >>>>> 00:04.1 Serial controller: Hewlett-Packard Company Diva Serial [GSP] Multiport UART (rev 03) (prog-if 02 [16550])
> >>>>>           Subsystem: Hewlett-Packard Company Device 1283
> >>>>>           Flags: medium devsel, IRQ 70
> >>>>>           Memory at ffffffff80000000 (32-bit, non-prefetchable) [size=4K]
> >>>>>           I/O ports at 0040 [size=64]
> >>>>>           Capabilities: [48] Power Management version 2
> >>>>>           Kernel driver in use: serial
> >>>>>
> >>>>>
> >>>>> dmesg after bootup:
> >>>>>
> >>>>> [   17.708000] Serial: 8250/16550 driver, 8 ports, IRQ sharing enabled
> >>>>> [   17.724000] serial 0000:00:04.1: enabling device (0142 -> 0143)
> >>>>> [   17.724000] console [ttyS0] disabled
> >>>>> [   17.880000] serial 0000:00:04.1: ttyS0 at MMIO 0xffffffff80000000 (irq = 70, base_baud = 115200) is a 16550A
> >>>>> [   17.996000] console [ttyS0] enabled
> >>>>> [   38.888000] INFO: rcu_sched detected stalls on CPUs/tasks: { 3} (detected by 1, t=5252 jiffies, g=-290, c=-291, q=2)
> >>>>> [   38.888000] Task dump for CPU 3:
> >>>>> [   38.888000] swapper/0       R  running task        0     1      0 0x00000004
> >>>>> [   38.888000] Backtrace:
> >>>>> [   38.888000]  [<0000000040200848>] vprintk_emit+0x570/0x5f8
> >>>>> [   38.888000]  [<0000000040200bdc>] printk+0x64/0x78
> >>>>> [   38.888000]  [<0000000040201fc0>] register_console+0x438/0x550
> >>>>> [   38.888000]  [<0000000040688bb8>] uart_add_one_port+0x400/0x5d0
> >>>>> [   38.888000]  [<000000004068e6d4>] serial8250_register_8250_port+0x3e4/0x448
> >>>>> [   38.888000]  [<0000000040695f44>] pciserial_init_ports+0x22c/0x2c8
> >>>>> [   38.888000]  [<0000000040696628>] pciserial_init_one+0x250/0x2e0
> >>>>> [   38.888000]  [<00000000405f3880>] pci_device_probe+0xb0/0x150
> >>>>> [   38.888000]  [<00000000406a8244>] driver_probe_device+0x204/0x570
> >>>>> [   38.888000]  [<00000000406a8728>] __driver_attach+0xe0/0x158
> >>>>> [   38.888000]  [<00000000406a4558>] bus_for_each_dev+0xd0/0x128
> >>>>> [   38.888000]  [<00000000406a76f8>] driver_attach+0x48/0x60
> >>>>> [   38.888000]  [<00000000406a6de8>] bus_add_driver+0x268/0x460
> >>>>> [   38.888000]  [<00000000406a915c>] driver_register+0x124/0x1d0
> >>>>> [   38.888000]  [<00000000405f336c>] __pci_register_driver+0x64/0x78
> >>>>> [   38.888000]  [<00000000401375e4>] serial_pci_driver_init+0x44/0x58
> >>>>>
> >>>>> [   59.084000] timer_interrupt(CPU 3): delayed! cycles 85EBC4C7D rem 2BAF83  next/now 2765C08677/276594D6F4
> >>>>> [   59.140000] bootconsole [ttyB0] disabled
> >>>>> [   59.144000] serial 0000:00:04.1: ttyS1 at MMIO 0xffffffff80000008 (irq = 70, base_baud = 115200) is a 16450
> >>>>> [   59.164000] serial 0000:00:04.1: ttyS2 at MMIO 0xffffffff80000010 (irq = 70, base_baud = 115200) is a 16550A
> >>>> I confirm this behaviour on the Mako system as well.  In my case, 3.18
> >>>> so royally screws up the serial port that even a power cycle won't
> >>>> recover the console connection to the MP (a sort of parisc equivalent of
> >>>> a BMC) and I have to go down to the machine room to physically yank the
> >>>> power from the system to power down the MP and get the console back.
> >>>> I've added a cc to linux-serial.  It looks like there are 20 non merge
> >>>> commits between 3.17 and 3.18.  I'm betting because of the MP problem
> >>>> it's got to be somewhere in the serial driver:
> >>>>
> >>>> cd92208 tty: serial: 8250_mtk: Fix quot calculation
> >>>> 716e115 serial: 8250_pci: remove rts_n override from Baytrail quirk
> >>>> 1ede7dc serial: 8250: Add Quark X1000 to 8250_pci.c
> >>>> 9137568 tty: serial: 8250_core: remove UART_IER_RDI in
> >>>> serial8250_stop_rx()
> >>>
> >>>> 59b3e89 tty: serial: 8250_core: use the ->line argument as a hint in
> >>>> serial8250_find_match_or_unused()
> >>> ^^^^^^^^^
> >>> This commit would be my first guess, but a complete dmesg up to boot
> >>> failure would be helpful in narrowing down the problem. There are about
> >>> 50 ways to initialize the 8250 port (which is part of the problem).
> >> Well, bisection says it's not this one.  Unfortunately, we crap out at
> >> this one:
> >>
> >> ae14a79 tty: serial: 8250_core: provide a function to export
> >> uart_8250_port
> >>
> >>    CC      drivers/tty/serial/8250/8250_core.o
> >> drivers/tty/serial/8250/8250_core.c: In function 'serial8250_ioctl':
> >> drivers/tty/serial/8250/8250_core.c:2857: error: 'TIOCSRS485' undeclared
> >> (first use in this function)
> >> drivers/tty/serial/8250/8250_core.c:2857: error: (Each undeclared
> >> identifier is reported only once
> >> drivers/tty/serial/8250/8250_core.c:2857: error: for each function it
> >> appears in.)
> >> drivers/tty/serial/8250/8250_core.c:2858: error: implicit declaration of
> >> function 'copy_from_user'
> >> drivers/tty/serial/8250/8250_core.c:2869: error: 'TIOCGRS485' undeclared
> >> (first use in this function)
> >> drivers/tty/serial/8250/8250_core.c:2870: error: implicit declaration of
> >> function 'copy_to_user'
> >> make[4]: *** [drivers/tty/serial/8250/8250_core.o] Error 1
> >> make[3]: *** [drivers/tty/serial/8250] Error 2
> >> make[2]: *** [drivers/tty/serial] Error 2
> >> make[1]: *** [drivers/tty] Error 2
> >>
> >> I'll work out how to fix it in the morning ... but really, having a
> >> bisectable tree is supposed to be the first rule of a maintainer.
> > OK, I managed to bisect the rest of the tree compensating for the build
> > failure.  This is the failing commit (cc's added):
> >
> > commit 2f2dafe77df2c78e189a9fa6b1879dffd06ae5a1
> > Author: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
> > Date:   Mon Sep 1 20:49:43 2014 +0530
> >
> >      serial: serial_core.c: printk replacement
> >   
> > I've confirmed by reverting against 3.19-rc2 and the system boots again.
> > This looks like a symptom of underlying problems within the dev_ print
> > helper accessors, so I'll dig further, but we'll need this reverted in
> > the meantime.
> Sure.
> can dev_print hang the machine? if dev is NULL, it will just print using 
> printk.
> in vprintk_emit(), there is an Ouch for printk recursing into itself. 
> can that be the cause?
> and, can i help you somehow to find out the root cause of this ?

It's definitely to do with dev_printk having a different call path from
printk.  I suspect one of the called functions overruns its stack.
Unless you have a stack grows up machine, there's probably no way to
reproduce (if the stack overrun suspicion is correct).  Visual
inspection might turn up a clue: it's probably an array written beyond
bounds somewhere in the call chain.

James


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From: James Bottomley <JBottomley@Parallels.com>

This is a partial revert of 2f2dafe (serial: serial_core.c: printk
replacement) which gets us booting again.  The real problem seems to be
the _emit path in early boot.  However, until we can root cause it, we
need at least to get boot working.

Fixes: 2f2dafe77df2c78e189a9fa6b1879dffd06ae5a1
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

---

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 57ca61b..984605b 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -2164,7 +2164,9 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
 		break;
 	}
 
-	dev_info(port->dev, "%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
+	printk(KERN_INFO "%s%s%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
+	       port->dev ? dev_name(port->dev) : "",
+	       port->dev ? ": " : "",
 	       drv->dev_name,
 	       drv->tty_driver->name_base + port->line,
 	       address, port->irq, port->uartclk / 16, uart_type(port));


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Subject: [PATCH] arch: parisc: kernel: sys_parisc:  Remove some unused functions
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Removes some functions that are not used anywhere:
parisc_personality() parisc_fallocate() parisc_sync_file_range()
parisc_fadvise64_64() parisc_readahead() parisc_pwrite64() parisc_pread64()
parisc_ftruncate64() parisc_truncate64()

This was partially found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
---
 arch/parisc/kernel/sys_parisc.c |   81 ---------------------------------------
 1 file changed, 81 deletions(-)

diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index e1ffea2..65ab69d 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -283,18 +283,6 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
 /* Fucking broken ABI */
 
 #ifdef CONFIG_64BIT
-asmlinkage long parisc_truncate64(const char __user * path,
-					unsigned int high, unsigned int low)
-{
-	return sys_truncate(path, (long)high << 32 | low);
-}
-
-asmlinkage long parisc_ftruncate64(unsigned int fd,
-					unsigned int high, unsigned int low)
-{
-	return sys_ftruncate(fd, (long)high << 32 | low);
-}
-
 /* stubs for the benefit of the syscall_table since truncate64 and truncate 
  * are identical on LP64 */
 asmlinkage long sys_truncate64(const char __user * path, unsigned long length)
@@ -309,62 +297,8 @@ asmlinkage long sys_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg
 {
 	return sys_fcntl(fd, cmd, arg);
 }
-#else
-
-asmlinkage long parisc_truncate64(const char __user * path,
-					unsigned int high, unsigned int low)
-{
-	return sys_truncate64(path, (loff_t)high << 32 | low);
-}
-
-asmlinkage long parisc_ftruncate64(unsigned int fd,
-					unsigned int high, unsigned int low)
-{
-	return sys_ftruncate64(fd, (loff_t)high << 32 | low);
-}
 #endif
 
-asmlinkage ssize_t parisc_pread64(unsigned int fd, char __user *buf, size_t count,
-					unsigned int high, unsigned int low)
-{
-	return sys_pread64(fd, buf, count, (loff_t)high << 32 | low);
-}
-
-asmlinkage ssize_t parisc_pwrite64(unsigned int fd, const char __user *buf,
-			size_t count, unsigned int high, unsigned int low)
-{
-	return sys_pwrite64(fd, buf, count, (loff_t)high << 32 | low);
-}
-
-asmlinkage ssize_t parisc_readahead(int fd, unsigned int high, unsigned int low,
-		                    size_t count)
-{
-	return sys_readahead(fd, (loff_t)high << 32 | low, count);
-}
-
-asmlinkage long parisc_fadvise64_64(int fd,
-			unsigned int high_off, unsigned int low_off,
-			unsigned int high_len, unsigned int low_len, int advice)
-{
-	return sys_fadvise64_64(fd, (loff_t)high_off << 32 | low_off,
-			(loff_t)high_len << 32 | low_len, advice);
-}
-
-asmlinkage long parisc_sync_file_range(int fd,
-			u32 hi_off, u32 lo_off, u32 hi_nbytes, u32 lo_nbytes,
-			unsigned int flags)
-{
-	return sys_sync_file_range(fd, (loff_t)hi_off << 32 | lo_off,
-			(loff_t)hi_nbytes << 32 | lo_nbytes, flags);
-}
-
-asmlinkage long parisc_fallocate(int fd, int mode, u32 offhi, u32 offlo,
-				u32 lenhi, u32 lenlo)
-{
-        return sys_fallocate(fd, mode, ((u64)offhi << 32) | offlo,
-                             ((u64)lenhi << 32) | lenlo);
-}
-
 asmlinkage unsigned long sys_alloc_hugepages(int key, unsigned long addr, unsigned long len, int prot, int flag)
 {
 	return -ENOMEM;
@@ -374,18 +308,3 @@ asmlinkage int sys_free_hugepages(unsigned long addr)
 {
 	return -EINVAL;
 }
-
-long parisc_personality(unsigned long personality)
-{
-	long err;
-
-	if (personality(current->personality) == PER_LINUX32
-	    && personality(personality) == PER_LINUX)
-		personality = (personality & ~PER_MASK) | PER_LINUX32;
-
-	err = sys_personality(personality);
-	if (personality(err) == PER_LINUX32)
-		err = (err & ~PER_MASK) | PER_LINUX;
-
-	return err;
-}
-- 
1.7.10.4


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On 01/02/2015 07:09 PM, Rickard Strandqvist wrote:
> Removes some functions that are not used anywhere:
> parisc_personality() parisc_fallocate() parisc_sync_file_range()
> parisc_fadvise64_64() parisc_readahead() parisc_pwrite64() parisc_pread64()
> parisc_ftruncate64() parisc_truncate64()
>
> This was partially found by using a static code analysis program called cppcheck.

NAK.

Those functions implement syscalls specific to the parisc ABI.
They are referenced in the syscall table which gets generated by the ENTRY_OURS()
macro in arch/parisc/kernel/syscall_table.S

Helge

>
> Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
> ---
>   arch/parisc/kernel/sys_parisc.c |   81 ---------------------------------------
>   1 file changed, 81 deletions(-)
>
> diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
> index e1ffea2..65ab69d 100644
> --- a/arch/parisc/kernel/sys_parisc.c
> +++ b/arch/parisc/kernel/sys_parisc.c
> @@ -283,18 +283,6 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
>   /* Fucking broken ABI */
>
>   #ifdef CONFIG_64BIT
> -asmlinkage long parisc_truncate64(const char __user * path,
> -					unsigned int high, unsigned int low)
> -{
> -	return sys_truncate(path, (long)high << 32 | low);
> -}
> -
> -asmlinkage long parisc_ftruncate64(unsigned int fd,
> -					unsigned int high, unsigned int low)
> -{
> -	return sys_ftruncate(fd, (long)high << 32 | low);
> -}
> -
>   /* stubs for the benefit of the syscall_table since truncate64 and truncate
>    * are identical on LP64 */
>   asmlinkage long sys_truncate64(const char __user * path, unsigned long length)
> @@ -309,62 +297,8 @@ asmlinkage long sys_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg
>   {
>   	return sys_fcntl(fd, cmd, arg);
>   }
> -#else
> -
> -asmlinkage long parisc_truncate64(const char __user * path,
> -					unsigned int high, unsigned int low)
> -{
> -	return sys_truncate64(path, (loff_t)high << 32 | low);
> -}
> -
> -asmlinkage long parisc_ftruncate64(unsigned int fd,
> -					unsigned int high, unsigned int low)
> -{
> -	return sys_ftruncate64(fd, (loff_t)high << 32 | low);
> -}
>   #endif
>
> -asmlinkage ssize_t parisc_pread64(unsigned int fd, char __user *buf, size_t count,
> -					unsigned int high, unsigned int low)
> -{
> -	return sys_pread64(fd, buf, count, (loff_t)high << 32 | low);
> -}
> -
> -asmlinkage ssize_t parisc_pwrite64(unsigned int fd, const char __user *buf,
> -			size_t count, unsigned int high, unsigned int low)
> -{
> -	return sys_pwrite64(fd, buf, count, (loff_t)high << 32 | low);
> -}
> -
> -asmlinkage ssize_t parisc_readahead(int fd, unsigned int high, unsigned int low,
> -		                    size_t count)
> -{
> -	return sys_readahead(fd, (loff_t)high << 32 | low, count);
> -}
> -
> -asmlinkage long parisc_fadvise64_64(int fd,
> -			unsigned int high_off, unsigned int low_off,
> -			unsigned int high_len, unsigned int low_len, int advice)
> -{
> -	return sys_fadvise64_64(fd, (loff_t)high_off << 32 | low_off,
> -			(loff_t)high_len << 32 | low_len, advice);
> -}
> -
> -asmlinkage long parisc_sync_file_range(int fd,
> -			u32 hi_off, u32 lo_off, u32 hi_nbytes, u32 lo_nbytes,
> -			unsigned int flags)
> -{
> -	return sys_sync_file_range(fd, (loff_t)hi_off << 32 | lo_off,
> -			(loff_t)hi_nbytes << 32 | lo_nbytes, flags);
> -}
> -
> -asmlinkage long parisc_fallocate(int fd, int mode, u32 offhi, u32 offlo,
> -				u32 lenhi, u32 lenlo)
> -{
> -        return sys_fallocate(fd, mode, ((u64)offhi << 32) | offlo,
> -                             ((u64)lenhi << 32) | lenlo);
> -}
> -
>   asmlinkage unsigned long sys_alloc_hugepages(int key, unsigned long addr, unsigned long len, int prot, int flag)
>   {
>   	return -ENOMEM;
> @@ -374,18 +308,3 @@ asmlinkage int sys_free_hugepages(unsigned long addr)
>   {
>   	return -EINVAL;
>   }
> -
> -long parisc_personality(unsigned long personality)
> -{
> -	long err;
> -
> -	if (personality(current->personality) == PER_LINUX32
> -	    && personality(personality) == PER_LINUX)
> -		personality = (personality & ~PER_MASK) | PER_LINUX32;
> -
> -	err = sys_personality(personality);
> -	if (personality(err) == PER_LINUX32)
> -		err = (err & ~PER_MASK) | PER_LINUX;
> -
> -	return err;
> -}
>

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Subject: Re: [PATCH] arch: parisc: kernel: sys_parisc:  Remove some unused
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On Fri, Jan 02, 2015 at 07:09:50PM +0100, Rickard Strandqvist wrote:
> Removes some functions that are not used anywhere:
> parisc_personality() parisc_fallocate() parisc_sync_file_range()
> parisc_fadvise64_64() parisc_readahead() parisc_pwrite64() parisc_pread64()
> parisc_ftruncate64() parisc_truncate64()
> 
> This was partially found by using a static code analysis program called cppcheck.

... which program has ended up missing
#define ENTRY_OURS(_name_) .word parisc_##_name_
and tons of lines like this
        ENTRY_OURS(sync_file_range)
in arch/parisc/kernel/syscall_table.S
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On Fri, Jan 02, 2015 at 10:05:13AM -0800, James Bottomley wrote:
> From: James Bottomley <JBottomley@Parallels.com>
> 
> This is a partial revert of 2f2dafe (serial: serial_core.c: printk
> replacement) which gets us booting again.  The real problem seems to be
> the _emit path in early boot.  However, until we can root cause it, we
> need at least to get boot working.
> 
> Fixes: 2f2dafe77df2c78e189a9fa6b1879dffd06ae5a1
> Cc: stable@vger.kernel.org
> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
> 
> ---
> 
> diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
> index 57ca61b..984605b 100644
> --- a/drivers/tty/serial/serial_core.c
> +++ b/drivers/tty/serial/serial_core.c
> @@ -2164,7 +2164,9 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
>  		break;
>  	}
>  
> -	dev_info(port->dev, "%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
> +	printk(KERN_INFO "%s%s%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
> +	       port->dev ? dev_name(port->dev) : "",
> +	       port->dev ? ": " : "",
>  	       drv->dev_name,
>  	       drv->tty_driver->name_base + port->line,
>  	       address, port->irq, port->uartclk / 16, uart_type(port));

Very odd, but I'll go queue it up, thanks.

greg k-h
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Subject: [PATCH] arch: parisc: kernel: smp:  Remove unused function
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Remove the function smp_send_start() that is not used anywhere.

This was partially found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
---
 arch/parisc/kernel/smp.c |    3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index ceda229..52e8597 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -230,9 +230,6 @@ send_IPI_allbutself(enum ipi_message_type op)
 inline void 
 smp_send_stop(void)	{ send_IPI_allbutself(IPI_CPU_STOP); }
 
-static inline void
-smp_send_start(void)	{ send_IPI_allbutself(IPI_CPU_START); }

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Newsgroups: gmane.linux.alsa.devel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.kernel.janitors,gmane.linux.kernel
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 3 Jan 2015 22:55:54 +0100

The iounmap() function performs also input parameter validation.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 sound/aoa/soundbus/i2sbus/core.c | 13 ++++++-------
 sound/arm/aaci.c                 |  4 ++--
 sound/drivers/ml403-ac97cr.c     |  3 +--
 sound/isa/msnd/msnd_pinnacle.c   |  3 +--
 sound/parisc/harmony.c           |  4 +---
 sound/pci/ad1889.c               |  5 +----
 sound/pci/asihpi/hpioctl.c       |  6 ++----
 sound/pci/atiixp.c               |  3 +--
 sound/pci/atiixp_modem.c         |  3 +--
 sound/pci/aw2/aw2-alsa.c         |  4 +---
 sound/pci/bt87x.c                |  3 +--
 sound/pci/cs4281.c               |  6 ++----
 sound/pci/cs46xx/cs46xx_lib.c    |  4 ++--
 sound/pci/ctxfi/cthw20k1.c       |  5 +----
 sound/pci/ctxfi/cthw20k2.c       |  5 +----
 sound/pci/echoaudio/echoaudio.c  |  6 +-----
 sound/pci/hda/hda_intel.c        |  3 +--
 sound/pci/lola/lola.c            |  6 ++----
 sound/pci/mixart/mixart.c        |  7 +++----
 sound/pci/nm256/nm256.c          |  6 ++----
 sound/pci/rme9652/hdsp.c         |  4 +---
 sound/pci/rme9652/hdspm.c        |  4 +---
 sound/pci/rme9652/rme9652.c      |  3 +--
 sound/pci/sis7019.c              |  5 +----
 sound/pci/ymfpci/ymfpci_main.c   |  3 +--
 sound/ppc/pmac.c                 | 15 +++++----------
 26 files changed, 43 insertions(+), 90 deletions(-)

diff --git a/sound/aoa/soundbus/i2sbus/core.c b/sound/aoa/soundbus/i2sbus/core.c
index 4e2b4fb..7835045 100644
--- a/sound/aoa/soundbus/i2sbus/core.c
+++ b/sound/aoa/soundbus/i2sbus/core.c
@@ -74,10 +74,9 @@ static void i2sbus_release_dev(struct device *dev)
 	int i;
 
 	i2sdev = container_of(dev, struct i2sbus_dev, sound.ofdev.dev);
-
- 	if (i2sdev->intfregs) iounmap(i2sdev->intfregs);
- 	if (i2sdev->out.dbdma) iounmap(i2sdev->out.dbdma);
- 	if (i2sdev->in.dbdma) iounmap(i2sdev->in.dbdma);
+	iounmap(i2sdev->intfregs);
+	iounmap(i2sdev->out.dbdma);
+	iounmap(i2sdev->in.dbdma);
 	for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++)
 		release_and_free_resource(i2sdev->allocated_resource[i]);
 	free_dbdma_descriptor_ring(i2sdev, &i2sdev->out.dbdma_ring);
@@ -318,9 +317,9 @@ static int i2sbus_add_dev(struct macio_dev *macio,
 			free_irq(dev->interrupts[i], dev);
 	free_dbdma_descriptor_ring(dev, &dev->out.dbdma_ring);
 	free_dbdma_descriptor_ring(dev, &dev->in.dbdma_ring);
-	if (dev->intfregs) iounmap(dev->intfregs);
-	if (dev->out.dbdma) iounmap(dev->out.dbdma);
-	if (dev->in.dbdma) iounmap(dev->in.dbdma);
+	iounmap(dev->intfregs);
+	iounmap(dev->out.dbdma);
+	iounmap(dev->in.dbdma);
 	for (i=0;i<3;i++)
 		release_and_free_resource(dev->allocated_resource[i]);
 	mutex_destroy(&dev->lock);
diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index 0e83a73..4140b1b 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -889,8 +889,8 @@ static int aaci_probe_ac97(struct aaci *aaci)
 static void aaci_free_card(struct snd_card *card)
 {
 	struct aaci *aaci = card->private_data;
-	if (aaci->base)
-		iounmap(aaci->base);
+
+	iounmap(aaci->base);
 }
 
 static struct aaci *aaci_init_card(struct amba_device *dev)
diff --git a/sound/drivers/ml403-ac97cr.c b/sound/drivers/ml403-ac97cr.c
index ec01de1..bdcb572 100644
--- a/sound/drivers/ml403-ac97cr.c
+++ b/sound/drivers/ml403-ac97cr.c
@@ -1094,8 +1094,7 @@ static int snd_ml403_ac97cr_free(struct snd_ml403_ac97cr *ml403_ac97cr)
 	if (ml403_ac97cr->capture_irq >= 0)
 		free_irq(ml403_ac97cr->capture_irq, ml403_ac97cr);
 	/* give back "port" */
-	if (ml403_ac97cr->port != NULL)
-		iounmap(ml403_ac97cr->port);
+	iounmap(ml403_ac97cr->port);
 	kfree(ml403_ac97cr);
 	PDEBUG(INIT_INFO, "free(): (done)\n");
 	return 0;
diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c
index 65b3682..4c07266 100644
--- a/sound/isa/msnd/msnd_pinnacle.c
+++ b/sound/isa/msnd/msnd_pinnacle.c
@@ -627,8 +627,7 @@ static int snd_msnd_attach(struct snd_card *card)
 	return 0;
 
 err_release_region:
-	if (chip->mappedbase)
-		iounmap(chip->mappedbase);
+	iounmap(chip->mappedbase);
 	release_mem_region(chip->base, BUFFSIZE);
 	release_region(chip->io, DSP_NUMIO);
 	free_irq(chip->irq, chip);
diff --git a/sound/parisc/harmony.c b/sound/parisc/harmony.c
index 29604a2..f2350c1 100644
--- a/sound/parisc/harmony.c
+++ b/sound/parisc/harmony.c
@@ -893,9 +893,7 @@ snd_harmony_free(struct snd_harmony *h)
 	if (h->irq >= 0)
 		free_irq(h->irq, h);
 
-	if (h->iobase)
-		iounmap(h->iobase);
-
+	iounmap(h->iobase);
 	kfree(h);
 	return 0;
 }
diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index 547ee30..0de3129 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -853,12 +853,9 @@ snd_ad1889_free(struct snd_ad1889 *chip)
 		free_irq(chip->irq, chip);
 
 skip_hw:
-	if (chip->iobase)
-		iounmap(chip->iobase);
-
+	iounmap(chip->iobase);
 	pci_release_regions(chip->pci);
 	pci_disable_device(chip->pci);
-
 	kfree(chip);
 	return 0;
 }
diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c
index 72af66b..67d1133 100644
--- a/sound/pci/asihpi/hpioctl.c
+++ b/sound/pci/asihpi/hpioctl.c
@@ -541,10 +541,8 @@ void asihpi_adapter_remove(struct pci_dev *pci_dev)
 	hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
 
 	/* unmap PCI memory space, mapped during device init. */
-	for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) {
-		if (pci.ap_mem_base[idx])
-			iounmap(pci.ap_mem_base[idx]);
-	}
+	for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; ++idx)
+		iounmap(pci.ap_mem_base[idx]);
 
 	if (pa->irq)
 		free_irq(pa->irq, pa);
diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index 9c1c445..d24188f 100644
--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -1585,8 +1585,7 @@ static int snd_atiixp_free(struct atiixp *chip)
       __hw_end:
 	if (chip->irq >= 0)
 		free_irq(chip->irq, chip);
-	if (chip->remap_addr)
-		iounmap(chip->remap_addr);
+	iounmap(chip->remap_addr);
 	pci_release_regions(chip->pci);
 	pci_disable_device(chip->pci);
 	kfree(chip);
diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c
index b2f63e0..c321a97 100644
--- a/sound/pci/atiixp_modem.c
+++ b/sound/pci/atiixp_modem.c
@@ -1211,8 +1211,7 @@ static int snd_atiixp_free(struct atiixp_modem *chip)
       __hw_end:
 	if (chip->irq >= 0)
 		free_irq(chip->irq, chip);
-	if (chip->remap_addr)
-		iounmap(chip->remap_addr);
+	iounmap(chip->remap_addr);
 	pci_release_regions(chip->pci);
 	pci_disable_device(chip->pci);
 	kfree(chip);
diff --git a/sound/pci/aw2/aw2-alsa.c b/sound/pci/aw2/aw2-alsa.c
index e1cf019..8d2fee7 100644
--- a/sound/pci/aw2/aw2-alsa.c
+++ b/sound/pci/aw2/aw2-alsa.c
@@ -229,9 +229,7 @@ static int snd_aw2_dev_free(struct snd_device *device)
 	if (chip->irq >= 0)
 		free_irq(chip->irq, (void *)chip);
 	/* release the i/o ports & memory */
-	if (chip->iobase_virt)
-		iounmap(chip->iobase_virt);
-
+	iounmap(chip->iobase_virt);
 	pci_release_regions(chip->pci);
 	/* disable the PCI entry */
 	pci_disable_device(chip->pci);
diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index 058b997..e82ceac 100644
--- a/sound/pci/bt87x.c
+++ b/sound/pci/bt87x.c
@@ -690,8 +690,7 @@ static int snd_bt87x_free(struct snd_bt87x *chip)
 		snd_bt87x_stop(chip);
 	if (chip->irq >= 0)
 		free_irq(chip->irq, chip);
-	if (chip->mmio)
-		iounmap(chip->mmio);
+	iounmap(chip->mmio);
 	pci_release_regions(chip->pci);
 	pci_disable_device(chip->pci);
 	kfree(chip);
diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index 05a4337..ea33911 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -1316,10 +1316,8 @@ static int snd_cs4281_free(struct cs4281 *chip)
 
 	if (chip->irq >= 0)
 		free_irq(chip->irq, chip);
-	if (chip->ba0)
-		iounmap(chip->ba0);
-	if (chip->ba1)
-		iounmap(chip->ba1);
+	iounmap(chip->ba0);
+	iounmap(chip->ba1);
 	pci_release_regions(chip->pci);
 	pci_disable_device(chip->pci);
 
diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c
index dfec84e..128bbfe 100644
--- a/sound/pci/cs46xx/cs46xx_lib.c
+++ b/sound/pci/cs46xx/cs46xx_lib.c
@@ -2949,8 +2949,8 @@ static int snd_cs46xx_free(struct snd_cs46xx *chip)
 
 	for (idx = 0; idx < 5; idx++) {
 		struct snd_cs46xx_region *region = &chip->region.idx[idx];
-		if (region->remap_addr)
-			iounmap(region->remap_addr);
+
+		iounmap(region->remap_addr);
 		release_and_free_resource(region->resource);
 	}
 
diff --git a/sound/pci/ctxfi/cthw20k1.c b/sound/pci/ctxfi/cthw20k1.c
index b425aa8..b8b0d8e 100644
--- a/sound/pci/ctxfi/cthw20k1.c
+++ b/sound/pci/ctxfi/cthw20k1.c
@@ -1985,10 +1985,7 @@ static int hw_card_shutdown(struct hw *hw)
 		free_irq(hw->irq, hw);
 
 	hw->irq	= -1;
-
-	if (hw->mem_base)
-		iounmap(hw->mem_base);
-
+	iounmap(hw->mem_base);
 	hw->mem_base = NULL;
 
 	if (hw->io_base)
diff --git a/sound/pci/ctxfi/cthw20k2.c b/sound/pci/ctxfi/cthw20k2.c
index 253899d..4e16b4d 100644
--- a/sound/pci/ctxfi/cthw20k2.c
+++ b/sound/pci/ctxfi/cthw20k2.c
@@ -2110,10 +2110,7 @@ static int hw_card_shutdown(struct hw *hw)
 		free_irq(hw->irq, hw);
 
 	hw->irq	= -1;
-
-	if (hw->mem_base)
-		iounmap(hw->mem_base);
-
+	iounmap(hw->mem_base);
 	hw->mem_base = NULL;
 
 	if (hw->io_base)
diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
index 21228ad..98d4f35 100644
--- a/sound/pci/echoaudio/echoaudio.c
+++ b/sound/pci/echoaudio/echoaudio.c
@@ -1872,12 +1872,8 @@ static int snd_echo_free(struct echoaudio *chip)
 	if (chip->comm_page)
 		snd_dma_free_pages(&chip->commpage_dma_buf);
 
-	if (chip->dsp_registers)
-		iounmap(chip->dsp_registers);
-
+	iounmap(chip->dsp_registers);
 	release_and_free_resource(chip->iores);
-
-
 	pci_disable_device(chip->pci);
 
 	/* release chip data */
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index d426a0b..a971425 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1138,8 +1138,7 @@ static int azx_free(struct azx *chip)
 		free_irq(chip->irq, (void*)chip);
 	if (chip->msi)
 		pci_disable_msi(chip->pci);
-	if (chip->remap_addr)
-		iounmap(chip->remap_addr);
+	iounmap(chip->remap_addr);
 
 	azx_free_stream_pages(chip);
 	if (chip->region_requested)
diff --git a/sound/pci/lola/lola.c b/sound/pci/lola/lola.c
index 4cf4be5..9ff60008 100644
--- a/sound/pci/lola/lola.c
+++ b/sound/pci/lola/lola.c
@@ -551,10 +551,8 @@ static void lola_free(struct lola *chip)
 	lola_free_mixer(chip);
 	if (chip->irq >= 0)
 		free_irq(chip->irq, (void *)chip);
-	if (chip->bar[0].remap_addr)
-		iounmap(chip->bar[0].remap_addr);
-	if (chip->bar[1].remap_addr)
-		iounmap(chip->bar[1].remap_addr);
+	iounmap(chip->bar[0].remap_addr);
+	iounmap(chip->bar[1].remap_addr);
 	if (chip->rb.area)
 		snd_dma_free_pages(&chip->rb);
 	pci_release_regions(chip->pci);
diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c
index 1faf47e..c3a9f39 100644
--- a/sound/pci/mixart/mixart.c
+++ b/sound/pci/mixart/mixart.c
@@ -1114,10 +1114,9 @@ static int snd_mixart_free(struct mixart_mgr *mgr)
 	}
 
 	/* release the i/o ports */
-	for (i = 0; i < 2; i++) {
-		if (mgr->mem[i].virt)
-			iounmap(mgr->mem[i].virt);
-	}
+	for (i = 0; i < 2; ++i)
+		iounmap(mgr->mem[i].virt);
+
 	pci_release_regions(mgr->pci);
 
 	/* free flowarray */
diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c
index 4e41a4e..3f52a44 100644
--- a/sound/pci/nm256/nm256.c
+++ b/sound/pci/nm256/nm256.c
@@ -1460,10 +1460,8 @@ static int snd_nm256_free(struct nm256 *chip)
 	if (chip->irq >= 0)
 		free_irq(chip->irq, chip);
 
-	if (chip->cport)
-		iounmap(chip->cport);
-	if (chip->buffer)
-		iounmap(chip->buffer);
+	iounmap(chip->cport);
+	iounmap(chip->buffer);
 	release_and_free_resource(chip->res_cport);
 	release_and_free_resource(chip->res_buffer);
 
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index cf5a6c8..fe66bcb 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -5309,9 +5309,7 @@ static int snd_hdsp_free(struct hdsp *hdsp)
 
 	release_firmware(hdsp->firmware);
 	vfree(hdsp->fw_uploaded);
-
-	if (hdsp->iobase)
-		iounmap(hdsp->iobase);
+	iounmap(hdsp->iobase);
 
 	if (hdsp->port)
 		pci_release_regions(hdsp->pci);
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 3342705..8109b8e 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -6965,9 +6965,7 @@ static int snd_hdspm_free(struct hdspm * hdspm)
 		free_irq(hdspm->irq, (void *) hdspm);
 
 	kfree(hdspm->mixer);
-
-	if (hdspm->iobase)
-		iounmap(hdspm->iobase);
+	iounmap(hdspm->iobase);
 
 	if (hdspm->port)
 		pci_release_regions(hdspm->pci);
diff --git a/sound/pci/rme9652/rme9652.c b/sound/pci/rme9652/rme9652.c
index 6521521..648911c 100644
--- a/sound/pci/rme9652/rme9652.c
+++ b/sound/pci/rme9652/rme9652.c
@@ -1756,8 +1756,7 @@ static int snd_rme9652_free(struct snd_rme9652 *rme9652)
 
 	if (rme9652->irq >= 0)
 		free_irq(rme9652->irq, (void *)rme9652);
-	if (rme9652->iobase)
-		iounmap(rme9652->iobase);
+	iounmap(rme9652->iobase);
 	if (rme9652->port)
 		pci_release_regions(rme9652->pci);
 
diff --git a/sound/pci/sis7019.c b/sound/pci/sis7019.c
index 7f6a0a0..5e9437b 100644
--- a/sound/pci/sis7019.c
+++ b/sound/pci/sis7019.c
@@ -1064,12 +1064,9 @@ static int sis_chip_free(struct sis7019 *sis)
 	if (sis->irq >= 0)
 		free_irq(sis->irq, sis);
 
-	if (sis->ioaddr)
-		iounmap(sis->ioaddr);
-
+	iounmap(sis->ioaddr);
 	pci_release_regions(sis->pci);
 	pci_disable_device(sis->pci);
-
 	sis_free_suspend(sis);
 	return 0;
 }
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index f5581a9..de7f06f 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -2246,8 +2246,7 @@ static int snd_ymfpci_free(struct snd_ymfpci *chip)
 	release_and_free_resource(chip->mpu_res);
 	release_and_free_resource(chip->fm_res);
 	snd_ymfpci_free_gameport(chip);
-	if (chip->reg_area_virt)
-		iounmap(chip->reg_area_virt);
+	iounmap(chip->reg_area_virt);
 	if (chip->work_ptr.area)
 		snd_dma_free_pages(&chip->work_ptr);
 	
diff --git a/sound/ppc/pmac.c b/sound/ppc/pmac.c
index 5a13b22..d399df4 100644
--- a/sound/ppc/pmac.c
+++ b/sound/ppc/pmac.c
@@ -867,16 +867,11 @@ static int snd_pmac_free(struct snd_pmac *chip)
 	snd_pmac_dbdma_free(chip, &chip->capture.cmd);
 	snd_pmac_dbdma_free(chip, &chip->extra_dma);
 	snd_pmac_dbdma_free(chip, &emergency_dbdma);
-	if (chip->macio_base)
-		iounmap(chip->macio_base);
-	if (chip->latch_base)
-		iounmap(chip->latch_base);
-	if (chip->awacs)
-		iounmap(chip->awacs);
-	if (chip->playback.dma)
-		iounmap(chip->playback.dma);
-	if (chip->capture.dma)
-		iounmap(chip->capture.dma);
+	iounmap(chip->macio_base);
+	iounmap(chip->latch_base);
+	iounmap(chip->awacs);
+	iounmap(chip->playback.dma);
+	iounmap(chip->capture.dma);
 
 	if (chip->node) {
 		int i;
-- 
2.2.1


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Subject: Re: [PATCH] serial: fix parisc boot hang
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On Fri, 2015-01-02 at 10:51 -0800, Greg Kroah-Hartman wrote:
> On Fri, Jan 02, 2015 at 10:05:13AM -0800, James Bottomley wrote:
> > From: James Bottomley <JBottomley@Parallels.com>
> > 
> > This is a partial revert of 2f2dafe (serial: serial_core.c: printk
> > replacement) which gets us booting again.  The real problem seems to be
> > the _emit path in early boot.  However, until we can root cause it, we
> > need at least to get boot working.
> > 
> > Fixes: 2f2dafe77df2c78e189a9fa6b1879dffd06ae5a1
> > Cc: stable@vger.kernel.org
> > Signed-off-by: James Bottomley <JBottomley@Parallels.com>
> > 
> > ---
> > 
> > diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
> > index 57ca61b..984605b 100644
> > --- a/drivers/tty/serial/serial_core.c
> > +++ b/drivers/tty/serial/serial_core.c
> > @@ -2164,7 +2164,9 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
> >  		break;
> >  	}
> >  
> > -	dev_info(port->dev, "%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
> > +	printk(KERN_INFO "%s%s%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
> > +	       port->dev ? dev_name(port->dev) : "",
> > +	       port->dev ? ": " : "",
> >  	       drv->dev_name,
> >  	       drv->tty_driver->name_base + port->line,
> >  	       address, port->irq, port->uartclk / 16, uart_type(port));
> 
> Very odd, but I'll go queue it up, thanks.

OK, well this turned out to be one of the weirder fishing expeditions
I've been on.  The problem is this strange linux specific printf format
flag %pV.  The way to fix the bug is not to indirect the dev_xxx printks
via %pV.  What's happening is that in some circumstances, using %pV
corrupts the stack.

The reason seems to be that whoever came up with %pV didn't read the man
pages carefully enough. In all the examples and use cases, the va_list
is passed by *copy* not by reference.  For some inexplicable reason it's
passed by reference in struct va_format.  Sure enough when I fix up my
local tree to pass by copy it all works (at least as far as I can tell:
most of the time the stack corruption passes unnoticed and minor
disturbances can affect that.  However, the type and size of the va_list
is the same in reference and copy, so I think it's reasonably
definitive).

I'd really like one of our gcc experts to comment here because all of
these are builtin_ types and functions, so why there's a problem is a
mystery (translate: I don't understand enough of gcc to make sense of
the source code), but the surmise would be that the builtins are taking
some stack frame information from the source and, because it's a pointer
not a copy, it's in the wrong frame.

Assuming this turns out to be the problem, fixing it is going to be a
real bugger because on most platforms, the type of va_list is void *
meaning you can't tell the difference at compile time between a copy and
a reference, because typeof(void *) == typeof(void **),  and this %pV is
sprayed all over our code base.

We should probably also have the security experts look it over because
any way of inducing stack frame corruption is potentially exploitable,
although, in this case, I think all of the uses are internal so the user
doesn't have the ability to influence the source data.

James


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Subject: Re: [PATCH] serial: fix parisc boot hang
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	linux-parisc <linux-parisc@vger.kernel.org>,
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	Sudip Mukherjee <sudipm.mukherjee@gmail.com>
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On 2015-01-04, at 2:12 PM, James Bottomley wrote:

> On Fri, 2015-01-02 at 10:51 -0800, Greg Kroah-Hartman wrote:
>> On Fri, Jan 02, 2015 at 10:05:13AM -0800, James Bottomley wrote:
>>> From: James Bottomley <JBottomley@Parallels.com>
>>> 
>>> This is a partial revert of 2f2dafe (serial: serial_core.c: printk
>>> replacement) which gets us booting again.  The real problem seems to be
>>> the _emit path in early boot.  However, until we can root cause it, we
>>> need at least to get boot working.
>>> 
>>> Fixes: 2f2dafe77df2c78e189a9fa6b1879dffd06ae5a1
>>> Cc: stable@vger.kernel.org
>>> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
>>> 
>>> ---
>>> 
>>> diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
>>> index 57ca61b..984605b 100644
>>> --- a/drivers/tty/serial/serial_core.c
>>> +++ b/drivers/tty/serial/serial_core.c
>>> @@ -2164,7 +2164,9 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
>>> 		break;
>>> 	}
>>> 
>>> -	dev_info(port->dev, "%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
>>> +	printk(KERN_INFO "%s%s%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
>>> +	       port->dev ? dev_name(port->dev) : "",
>>> +	       port->dev ? ": " : "",
>>> 	       drv->dev_name,
>>> 	       drv->tty_driver->name_base + port->line,
>>> 	       address, port->irq, port->uartclk / 16, uart_type(port));
>> 
>> Very odd, but I'll go queue it up, thanks.
> 
> OK, well this turned out to be one of the weirder fishing expeditions
> I've been on.  The problem is this strange linux specific printf format
> flag %pV.  The way to fix the bug is not to indirect the dev_xxx printks
> via %pV.  What's happening is that in some circumstances, using %pV
> corrupts the stack.
> 
> The reason seems to be that whoever came up with %pV didn't read the man
> pages carefully enough. In all the examples and use cases, the va_list
> is passed by *copy* not by reference.  For some inexplicable reason it's
> passed by reference in struct va_format.  Sure enough when I fix up my
> local tree to pass by copy it all works (at least as far as I can tell:
> most of the time the stack corruption passes unnoticed and minor
> disturbances can affect that.  However, the type and size of the va_list
> is the same in reference and copy, so I think it's reasonably
> definitive).
> 
> I'd really like one of our gcc experts to comment here because all of
> these are builtin_ types and functions, so why there's a problem is a
> mystery (translate: I don't understand enough of gcc to make sense of
> the source code), but the surmise would be that the builtins are taking
> some stack frame information from the source and, because it's a pointer
> not a copy, it's in the wrong frame.
> 
> Assuming this turns out to be the problem, fixing it is going to be a
> real bugger because on most platforms, the type of va_list is void *
> meaning you can't tell the difference at compile time between a copy and
> a reference, because typeof(void *) == typeof(void **),  and this %pV is
> sprayed all over our code base.
> 
> We should probably also have the security experts look it over because
> any way of inducing stack frame corruption is potentially exploitable,
> although, in this case, I think all of the uses are internal so the user
> doesn't have the ability to influence the source data.


Would it be possible to create a relatively simple test case?

On 64-bit parisc, the va_list is built up in part by hppa_builtin_saveregs() in pa.c.
It's stored in a region in the callers frame reserved for arguments.

I tend to think it's dangerous to pass a va_list by reference as in general the called
function is free to use the incoming argument region for its own purposes after
the incoming arguments have been copied.  This might be the cause of the stack
corruption you are seeing.

On parisc, the callee is responsible for copying incoming arguments if necessary.
This is somewhat unusual...

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:37:11 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial
Subject: Re: [PATCH] serial: fix parisc boot hang
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	linux-parisc <linux-parisc@vger.kernel.org>,
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	Sudip Mukherjee <sudipm.mukherjee@gmail.com>
To: John David Anglin <dave.anglin@bell.net>
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On Sun, 2015-01-04 at 15:41 -0500, John David Anglin wrote:
> On 2015-01-04, at 2:12 PM, James Bottomley wrote:
> 
> > On Fri, 2015-01-02 at 10:51 -0800, Greg Kroah-Hartman wrote:
> >> On Fri, Jan 02, 2015 at 10:05:13AM -0800, James Bottomley wrote:
> >>> From: James Bottomley <JBottomley@Parallels.com>
> >>> 
> >>> This is a partial revert of 2f2dafe (serial: serial_core.c: printk
> >>> replacement) which gets us booting again.  The real problem seems to be
> >>> the _emit path in early boot.  However, until we can root cause it, we
> >>> need at least to get boot working.
> >>> 
> >>> Fixes: 2f2dafe77df2c78e189a9fa6b1879dffd06ae5a1
> >>> Cc: stable@vger.kernel.org
> >>> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
> >>> 
> >>> ---
> >>> 
> >>> diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
> >>> index 57ca61b..984605b 100644
> >>> --- a/drivers/tty/serial/serial_core.c
> >>> +++ b/drivers/tty/serial/serial_core.c
> >>> @@ -2164,7 +2164,9 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
> >>> 		break;
> >>> 	}
> >>> 
> >>> -	dev_info(port->dev, "%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
> >>> +	printk(KERN_INFO "%s%s%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
> >>> +	       port->dev ? dev_name(port->dev) : "",
> >>> +	       port->dev ? ": " : "",
> >>> 	       drv->dev_name,
> >>> 	       drv->tty_driver->name_base + port->line,
> >>> 	       address, port->irq, port->uartclk / 16, uart_type(port));
> >> 
> >> Very odd, but I'll go queue it up, thanks.
> > 
> > OK, well this turned out to be one of the weirder fishing expeditions
> > I've been on.  The problem is this strange linux specific printf format
> > flag %pV.  The way to fix the bug is not to indirect the dev_xxx printks
> > via %pV.  What's happening is that in some circumstances, using %pV
> > corrupts the stack.
> > 
> > The reason seems to be that whoever came up with %pV didn't read the man
> > pages carefully enough. In all the examples and use cases, the va_list
> > is passed by *copy* not by reference.  For some inexplicable reason it's
> > passed by reference in struct va_format.  Sure enough when I fix up my
> > local tree to pass by copy it all works (at least as far as I can tell:
> > most of the time the stack corruption passes unnoticed and minor
> > disturbances can affect that.  However, the type and size of the va_list
> > is the same in reference and copy, so I think it's reasonably
> > definitive).
> > 
> > I'd really like one of our gcc experts to comment here because all of
> > these are builtin_ types and functions, so why there's a problem is a
> > mystery (translate: I don't understand enough of gcc to make sense of
> > the source code), but the surmise would be that the builtins are taking
> > some stack frame information from the source and, because it's a pointer
> > not a copy, it's in the wrong frame.
> > 
> > Assuming this turns out to be the problem, fixing it is going to be a
> > real bugger because on most platforms, the type of va_list is void *
> > meaning you can't tell the difference at compile time between a copy and
> > a reference, because typeof(void *) == typeof(void **),  and this %pV is
> > sprayed all over our code base.
> > 
> > We should probably also have the security experts look it over because
> > any way of inducing stack frame corruption is potentially exploitable,
> > although, in this case, I think all of the uses are internal so the user
> > doesn't have the ability to influence the source data.
> 
> 
> Would it be possible to create a relatively simple test case?

Unfortunately not.  I'm no longer even sure this is the root cause: it
reproduced again, even passing va_list by copy.

James

> On 64-bit parisc, the va_list is built up in part by
> hppa_builtin_saveregs() in pa.c.
> It's stored in a region in the callers frame reserved for arguments.
> 
> I tend to think it's dangerous to pass a va_list by reference as in
> general the called
> function is free to use the incoming argument region for its own
> purposes after
> the incoming arguments have been copied.  This might be the cause of
> the stack
> corruption you are seeing.
> 
> On parisc, the callee is responsible for copying incoming arguments if
> necessary.
> This is somewhat unusual...
> 
> Dave
> --
> John David Anglin	dave.anglin@bell.net
> 
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 


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On Sun, Jan 04, 2015 at 02:36:01PM +0100, SF Markus Elfring wrote:
>  	/* unmap PCI memory space, mapped during device init. */
> -	for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) {
> -		if (pci.ap_mem_base[idx])
> -			iounmap(pci.ap_mem_base[idx]);
> -	}
> +	for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; ++idx)
> +		iounmap(pci.ap_mem_base[idx]);
>  

Don't do the gratuitous idx++ to ++idx changes.  You do it a couple
other places as well.  It belongs in a separate patch if you really feel
it is worth doing.  (It is not a clean up and it is not worth doing).

regards,
dan carpenter


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On 01/05/2015 01:34 AM, James Bottomley wrote:
> On Sun, 2015-01-04 at 15:41 -0500, John David Anglin wrote:
>> On 2015-01-04, at 2:12 PM, James Bottomley wrote:
>>
>>> On Fri, 2015-01-02 at 10:51 -0800, Greg Kroah-Hartman wrote:
>>>> On Fri, Jan 02, 2015 at 10:05:13AM -0800, James Bottomley wrote:
>>>>> From: James Bottomley <JBottomley@Parallels.com>
>>>>>
>>>>> This is a partial revert of 2f2dafe (serial: serial_core.c: printk
>>>>> replacement) which gets us booting again.  The real problem seems to be
>>>>> the _emit path in early boot.  However, until we can root cause it, we
>>>>> need at least to get boot working.
>>>>>
>>>>> Fixes: 2f2dafe77df2c78e189a9fa6b1879dffd06ae5a1
>>>>> Cc: stable@vger.kernel.org
>>>>> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
>>>>>
>>>>> ---
>>>>>
>>>>> diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
>>>>> index 57ca61b..984605b 100644
>>>>> --- a/drivers/tty/serial/serial_core.c
>>>>> +++ b/drivers/tty/serial/serial_core.c
>>>>> @@ -2164,7 +2164,9 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
>>>>> 		break;
>>>>> 	}
>>>>>
>>>>> -	dev_info(port->dev, "%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
>>>>> +	printk(KERN_INFO "%s%s%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
>>>>> +	       port->dev ? dev_name(port->dev) : "",
>>>>> +	       port->dev ? ": " : "",
>>>>> 	       drv->dev_name,
>>>>> 	       drv->tty_driver->name_base + port->line,
>>>>> 	       address, port->irq, port->uartclk / 16, uart_type(port));
>>>>
>>>> Very odd, but I'll go queue it up, thanks.
>>>
>>> OK, well this turned out to be one of the weirder fishing expeditions
>>> I've been on.  The problem is this strange linux specific printf format
>>> flag %pV.  The way to fix the bug is not to indirect the dev_xxx printks
>>> via %pV.  What's happening is that in some circumstances, using %pV
>>> corrupts the stack.
>>>
>>> The reason seems to be that whoever came up with %pV didn't read the man
>>> pages carefully enough. In all the examples and use cases, the va_list
>>> is passed by *copy* not by reference.  For some inexplicable reason it's
>>> passed by reference in struct va_format.  Sure enough when I fix up my
>>> local tree to pass by copy it all works (at least as far as I can tell:
>>> most of the time the stack corruption passes unnoticed and minor
>>> disturbances can affect that.  However, the type and size of the va_list
>>> is the same in reference and copy, so I think it's reasonably
>>> definitive).
>>>
>>> I'd really like one of our gcc experts to comment here because all of
>>> these are builtin_ types and functions, so why there's a problem is a
>>> mystery (translate: I don't understand enough of gcc to make sense of
>>> the source code), but the surmise would be that the builtins are taking
>>> some stack frame information from the source and, because it's a pointer
>>> not a copy, it's in the wrong frame.
>>>
>>> Assuming this turns out to be the problem, fixing it is going to be a
>>> real bugger because on most platforms, the type of va_list is void *
>>> meaning you can't tell the difference at compile time between a copy and
>>> a reference, because typeof(void *) == typeof(void **),  and this %pV is
>>> sprayed all over our code base.
>>>
>>> We should probably also have the security experts look it over because
>>> any way of inducing stack frame corruption is potentially exploitable,
>>> although, in this case, I think all of the uses are internal so the user
>>> doesn't have the ability to influence the source data.
>>
>>
>> Would it be possible to create a relatively simple test case?
> 
> Unfortunately not.  I'm no longer even sure this is the root cause: it
> reproduced again, even passing va_list by copy.

Is your "passing va_list by copy" using va_copy()?

>> On 64-bit parisc, the va_list is built up in part by
>> hppa_builtin_saveregs() in pa.c.
>> It's stored in a region in the callers frame reserved for arguments.
>>
>> I tend to think it's dangerous to pass a va_list by reference as in
>> general the called
>> function is free to use the incoming argument region for its own
>> purposes after
>> the incoming arguments have been copied.  This might be the cause of
>> the stack
>> corruption you are seeing.
>>
>> On parisc, the callee is responsible for copying incoming arguments if
>> necessary.
>> This is somewhat unusual...

How is va_copy() implemented on parisc?

Regards,
Peter Hurley
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On Mon, 2015-01-05 at 11:02 -0500, Peter Hurley wrote:
> On 01/05/2015 01:34 AM, James Bottomley wrote:
> > On Sun, 2015-01-04 at 15:41 -0500, John David Anglin wrote:
> >> On 2015-01-04, at 2:12 PM, James Bottomley wrote:
> >>
> >>> On Fri, 2015-01-02 at 10:51 -0800, Greg Kroah-Hartman wrote:
> >>>> On Fri, Jan 02, 2015 at 10:05:13AM -0800, James Bottomley wrote:
> >>>>> From: James Bottomley <JBottomley@Parallels.com>
> >>>>>
> >>>>> This is a partial revert of 2f2dafe (serial: serial_core.c: printk
> >>>>> replacement) which gets us booting again.  The real problem seems to be
> >>>>> the _emit path in early boot.  However, until we can root cause it, we
> >>>>> need at least to get boot working.
> >>>>>
> >>>>> Fixes: 2f2dafe77df2c78e189a9fa6b1879dffd06ae5a1
> >>>>> Cc: stable@vger.kernel.org
> >>>>> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
> >>>>>
> >>>>> ---
> >>>>>
> >>>>> diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
> >>>>> index 57ca61b..984605b 100644
> >>>>> --- a/drivers/tty/serial/serial_core.c
> >>>>> +++ b/drivers/tty/serial/serial_core.c
> >>>>> @@ -2164,7 +2164,9 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
> >>>>> 		break;
> >>>>> 	}
> >>>>>
> >>>>> -	dev_info(port->dev, "%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
> >>>>> +	printk(KERN_INFO "%s%s%s%d at %s (irq = %d, base_baud = %d) is a %s\n",
> >>>>> +	       port->dev ? dev_name(port->dev) : "",
> >>>>> +	       port->dev ? ": " : "",
> >>>>> 	       drv->dev_name,
> >>>>> 	       drv->tty_driver->name_base + port->line,
> >>>>> 	       address, port->irq, port->uartclk / 16, uart_type(port));
> >>>>
> >>>> Very odd, but I'll go queue it up, thanks.
> >>>
> >>> OK, well this turned out to be one of the weirder fishing expeditions
> >>> I've been on.  The problem is this strange linux specific printf format
> >>> flag %pV.  The way to fix the bug is not to indirect the dev_xxx printks
> >>> via %pV.  What's happening is that in some circumstances, using %pV
> >>> corrupts the stack.
> >>>
> >>> The reason seems to be that whoever came up with %pV didn't read the man
> >>> pages carefully enough. In all the examples and use cases, the va_list
> >>> is passed by *copy* not by reference.  For some inexplicable reason it's
> >>> passed by reference in struct va_format.  Sure enough when I fix up my
> >>> local tree to pass by copy it all works (at least as far as I can tell:
> >>> most of the time the stack corruption passes unnoticed and minor
> >>> disturbances can affect that.  However, the type and size of the va_list
> >>> is the same in reference and copy, so I think it's reasonably
> >>> definitive).
> >>>
> >>> I'd really like one of our gcc experts to comment here because all of
> >>> these are builtin_ types and functions, so why there's a problem is a
> >>> mystery (translate: I don't understand enough of gcc to make sense of
> >>> the source code), but the surmise would be that the builtins are taking
> >>> some stack frame information from the source and, because it's a pointer
> >>> not a copy, it's in the wrong frame.
> >>>
> >>> Assuming this turns out to be the problem, fixing it is going to be a
> >>> real bugger because on most platforms, the type of va_list is void *
> >>> meaning you can't tell the difference at compile time between a copy and
> >>> a reference, because typeof(void *) == typeof(void **),  and this %pV is
> >>> sprayed all over our code base.
> >>>
> >>> We should probably also have the security experts look it over because
> >>> any way of inducing stack frame corruption is potentially exploitable,
> >>> although, in this case, I think all of the uses are internal so the user
> >>> doesn't have the ability to influence the source data.
> >>
> >>
> >> Would it be possible to create a relatively simple test case?
> > 
> > Unfortunately not.  I'm no longer even sure this is the root cause: it
> > reproduced again, even passing va_list by copy.
> 
> Is your "passing va_list by copy" using va_copy()?

No ... it refers to passing the va_list through the call frames before
you get to va_copy.  If you do man stdarg on most linux systems, it will
give examples of this.

varargs is very stack and architecture dependent, so you have to be very
careful to execute va_start/va_copy (code) va_end in the same call
frame.

James


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virtio wants to read bitwise types from userspace using get_user.  At the
moment this triggers sparse errors, since the value is passed through an
integer.

Fix that up using __force.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/uaccess.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index a5cb070..6c79311 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -104,7 +104,7 @@ struct exception_data {
 	    }                                           \
 	}                                               \
 							\
-	(x) = (__typeof__(*(ptr))) __gu_val;            \
+	(x) = (__force __typeof__(*(ptr))) __gu_val;	\
 	__gu_err;                                       \
 })
 
-- 
MST


From - Thu Nov 08 21:37:12 2018
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From: "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH v2 37/40] parisc: macro whitespace fixes
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Cc: Arnd Bergmann <arnd@arndb.de>, linux-arch@vger.kernel.org,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org
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While working on arch/parisc/include/asm/uaccess.h, I noticed
that some macros within this header are made harder to read because they
violate a coding style rule: space is missing after comma.

Fix it up.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 arch/parisc/include/asm/uaccess.h | 116 +++++++++++++++++++-------------------
 1 file changed, 58 insertions(+), 58 deletions(-)

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 6c79311..0abdd4c 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -17,7 +17,7 @@
 #define KERNEL_DS	((mm_segment_t){0})
 #define USER_DS 	((mm_segment_t){1})
 
-#define segment_eq(a,b)	((a).seg == (b).seg)
+#define segment_eq(a, b) ((a).seg == (b).seg)
 
 #define get_ds()	(KERNEL_DS)
 #define get_fs()	(current_thread_info()->addr_limit)
@@ -42,14 +42,14 @@ static inline long access_ok(int type, const void __user * addr,
 #if !defined(CONFIG_64BIT)
 #define LDD_KERNEL(ptr)		BUILD_BUG()
 #define LDD_USER(ptr)		BUILD_BUG()
-#define STD_KERNEL(x, ptr)	__put_kernel_asm64(x,ptr)
-#define STD_USER(x, ptr)	__put_user_asm64(x,ptr)
+#define STD_KERNEL(x, ptr)	__put_kernel_asm64(x, ptr)
+#define STD_USER(x, ptr)	__put_user_asm64(x, ptr)
 #define ASM_WORD_INSN		".word\t"
 #else
-#define LDD_KERNEL(ptr)		__get_kernel_asm("ldd",ptr)
-#define LDD_USER(ptr)		__get_user_asm("ldd",ptr)
-#define STD_KERNEL(x, ptr)	__put_kernel_asm("std",x,ptr)
-#define STD_USER(x, ptr)	__put_user_asm("std",x,ptr)
+#define LDD_KERNEL(ptr)		__get_kernel_asm("ldd", ptr)
+#define LDD_USER(ptr)		__get_user_asm("ldd", ptr)
+#define STD_KERNEL(x, ptr)	__put_kernel_asm("std", x, ptr)
+#define STD_USER(x, ptr)	__put_user_asm("std", x, ptr)
 #define ASM_WORD_INSN		".dword\t"
 #endif
 
@@ -80,68 +80,68 @@ struct exception_data {
 	unsigned long fault_addr;
 };
 
-#define __get_user(x,ptr)                               \
-({                                                      \
-	register long __gu_err __asm__ ("r8") = 0;      \
-	register long __gu_val __asm__ ("r9") = 0;      \
-							\
-	if (segment_eq(get_fs(),KERNEL_DS)) {           \
-	    switch (sizeof(*(ptr))) {                   \
-	    case 1: __get_kernel_asm("ldb",ptr); break; \
-	    case 2: __get_kernel_asm("ldh",ptr); break; \
-	    case 4: __get_kernel_asm("ldw",ptr); break; \
-	    case 8: LDD_KERNEL(ptr); break;		\
-	    default: BUILD_BUG(); break;		\
-	    }                                           \
-	}                                               \
-	else {                                          \
-	    switch (sizeof(*(ptr))) {                   \
-	    case 1: __get_user_asm("ldb",ptr); break;   \
-	    case 2: __get_user_asm("ldh",ptr); break;   \
-	    case 4: __get_user_asm("ldw",ptr); break;   \
-	    case 8: LDD_USER(ptr);  break;		\
-	    default: BUILD_BUG(); break;		\
-	    }                                           \
-	}                                               \
-							\
-	(x) = (__force __typeof__(*(ptr))) __gu_val;	\
-	__gu_err;                                       \
+#define __get_user(x, ptr)                               \
+({                                                       \
+	register long __gu_err __asm__ ("r8") = 0;       \
+	register long __gu_val __asm__ ("r9") = 0;       \
+							 \
+	if (segment_eq(get_fs(), KERNEL_DS)) {           \
+	    switch (sizeof(*(ptr))) {                    \
+	    case 1: __get_kernel_asm("ldb", ptr); break; \
+	    case 2: __get_kernel_asm("ldh", ptr); break; \
+	    case 4: __get_kernel_asm("ldw", ptr); break; \
+	    case 8: LDD_KERNEL(ptr); break;		 \
+	    default: BUILD_BUG(); break;		 \
+	    }                                            \
+	}                                                \
+	else {                                           \
+	    switch (sizeof(*(ptr))) {                    \
+	    case 1: __get_user_asm("ldb", ptr); break;   \
+	    case 2: __get_user_asm("ldh", ptr); break;   \
+	    case 4: __get_user_asm("ldw", ptr); break;   \
+	    case 8: LDD_USER(ptr);  break;		 \
+	    default: BUILD_BUG(); break;		 \
+	    }                                            \
+	}                                                \
+							 \
+	(x) = (__force __typeof__(*(ptr))) __gu_val;	 \
+	__gu_err;                                        \
 })
 
-#define __get_kernel_asm(ldx,ptr)                       \
+#define __get_kernel_asm(ldx, ptr)                      \
 	__asm__("\n1:\t" ldx "\t0(%2),%0\n\t"		\
 		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_1)\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err)		\
 		: "r1");
 
-#define __get_user_asm(ldx,ptr)                         \
+#define __get_user_asm(ldx, ptr)                        \
 	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n\t"	\
-		ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_get_user_skip_1)\
+		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_1)\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err)		\
 		: "r1");
 
-#define __put_user(x,ptr)                                       \
+#define __put_user(x, ptr)                                      \
 ({								\
 	register long __pu_err __asm__ ("r8") = 0;      	\
         __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x);	\
 								\
-	if (segment_eq(get_fs(),KERNEL_DS)) {                   \
+	if (segment_eq(get_fs(), KERNEL_DS)) {                  \
 	    switch (sizeof(*(ptr))) {                           \
-	    case 1: __put_kernel_asm("stb",__x,ptr); break;     \
-	    case 2: __put_kernel_asm("sth",__x,ptr); break;     \
-	    case 4: __put_kernel_asm("stw",__x,ptr); break;     \
-	    case 8: STD_KERNEL(__x,ptr); break;			\
+	    case 1: __put_kernel_asm("stb", __x, ptr); break;   \
+	    case 2: __put_kernel_asm("sth", __x, ptr); break;   \
+	    case 4: __put_kernel_asm("stw", __x, ptr); break;   \
+	    case 8: STD_KERNEL(__x, ptr); break;		\
 	    default: BUILD_BUG(); break;			\
 	    }                                                   \
 	}                                                       \
 	else {                                                  \
 	    switch (sizeof(*(ptr))) {                           \
-	    case 1: __put_user_asm("stb",__x,ptr); break;       \
-	    case 2: __put_user_asm("sth",__x,ptr); break;       \
-	    case 4: __put_user_asm("stw",__x,ptr); break;       \
-	    case 8: STD_USER(__x,ptr); break;			\
+	    case 1: __put_user_asm("stb", __x, ptr); break;     \
+	    case 2: __put_user_asm("sth", __x, ptr); break;     \
+	    case 4: __put_user_asm("stw", __x, ptr); break;     \
+	    case 8: STD_USER(__x, ptr); break;			\
 	    default: BUILD_BUG(); break;			\
 	    }                                                   \
 	}                                                       \
@@ -159,18 +159,18 @@ struct exception_data {
  * r8/r9 are already listed as err/val.
  */
 
-#define __put_kernel_asm(stx,x,ptr)                         \
+#define __put_kernel_asm(stx, x, ptr)                       \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%1)\n\t"		    \
-		ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_1)\
+		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_1)\
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
 	    	: "r1")
 
-#define __put_user_asm(stx,x,ptr)                           \
+#define __put_user_asm(stx, x, ptr)                         \
 	__asm__ __volatile__ (                              \
 		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n\t"	    \
-		ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_1)\
+		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_1)\
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
 		: "r1")
@@ -178,23 +178,23 @@ struct exception_data {
 
 #if !defined(CONFIG_64BIT)
 
-#define __put_kernel_asm64(__val,ptr) do {		    \
+#define __put_kernel_asm64(__val, ptr) do {		    \
 	__asm__ __volatile__ (				    \
 		"\n1:\tstw %2,0(%1)"			    \
 		"\n2:\tstw %R2,4(%1)\n\t"		    \
-		ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\
-		ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\
+		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_2)\
+		ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_put_user_skip_1)\
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(__val), "0"(__pu_err) \
 		: "r1");				    \
 } while (0)
 
-#define __put_user_asm64(__val,ptr) do {	    	    \
+#define __put_user_asm64(__val, ptr) do {	    	    \
 	__asm__ __volatile__ (				    \
 		"\n1:\tstw %2,0(%%sr3,%1)"		    \
 		"\n2:\tstw %R2,4(%%sr3,%1)\n\t"		    \
-		ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\
-		ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\
+		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_2)\
+		ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_put_user_skip_1)\
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(__val), "0"(__pu_err) \
 		: "r1");				    \
@@ -211,8 +211,8 @@ extern unsigned long lcopy_to_user(void __user *, const void *, unsigned long);
 extern unsigned long lcopy_from_user(void *, const void __user *, unsigned long);
 extern unsigned long lcopy_in_user(void __user *, const void __user *, unsigned long);
 extern long strncpy_from_user(char *, const char __user *, long);
-extern unsigned lclear_user(void __user *,unsigned long);
-extern long lstrnlen_user(const char __user *,long);
+extern unsigned lclear_user(void __user *, unsigned long);
+extern long lstrnlen_user(const char __user *, long);
 /*
  * Complex access routines -- macros
  */
-- 
MST


From - Thu Nov 08 21:37:12 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Rusty Russell <rusty@rustcorp.com.au>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 1/3] module_arch_freeing_init(): new hook for archs before module->module_init freed.
Date: Thu,  8 Jan 2015 11:28:05 +1030
Lines: 198
Approved: news@gmane.org
Message-ID: <1420678687-30548-2-git-send-email-rusty@rustcorp.com.au>
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Cc: Rusty Russell <rusty@rustcorp.com.au>,
	Chris Metcalf <cmetcalf@ezchip.com>,
	Haavard Skinnemoen <hskinnemoen@gmail.com>,
	Hans-Christian Egtvedt <egtvedt@samfundet.no>,
	Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-s390@vger.kernel.org
To: linux-kernel@vger.kernel.org
Original-X-From: linux-ia64-owner@vger.kernel.org Thu Jan 08 02:03:24 2015
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Xref: news.gmane.org gmane.linux.ports.ia64:24861 gmane.linux.kernel:1861272 gmane.linux.ports.parisc:25543
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/24861>

Archs have been abusing module_free() to clean up their arch-specific
allocations.  Since module_free() is also (ab)used by BPF and trace code,
let's keep it to simple allocations, and provide a hook called before
that.

This means that avr32, ia64, parisc and s390 no longer need to implement
their own module_free() at all.  avr32 doesn't need module_finalize()
either.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-s390@vger.kernel.org
---
 arch/avr32/kernel/module.c   | 13 +------------
 arch/ia64/kernel/module.c    |  6 ++----
 arch/parisc/kernel/module.c  |  6 +-----
 arch/s390/kernel/module.c    | 10 +++-------
 arch/tile/kernel/module.c    |  2 +-
 include/linux/moduleloader.h |  2 ++
 kernel/module.c              |  7 +++++++
 7 files changed, 17 insertions(+), 29 deletions(-)

diff --git a/arch/avr32/kernel/module.c b/arch/avr32/kernel/module.c
index 2c9412908024..164efa009e5b 100644
--- a/arch/avr32/kernel/module.c
+++ b/arch/avr32/kernel/module.c
@@ -19,12 +19,10 @@
 #include <linux/moduleloader.h>
 #include <linux/vmalloc.h>
 
-void module_free(struct module *mod, void *module_region)
+void module_arch_freeing_init(struct module *mod)
 {
 	vfree(mod->arch.syminfo);
 	mod->arch.syminfo = NULL;
-
-	vfree(module_region);
 }
 
 static inline int check_rela(Elf32_Rela *rela, struct module *module,
@@ -291,12 +289,3 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
 
 	return ret;
 }
-
-int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs,
-		    struct module *module)
-{
-	vfree(module->arch.syminfo);
-	module->arch.syminfo = NULL;
-
-	return 0;
-}
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index 24603be24c14..29754aae5177 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -305,14 +305,12 @@ plt_target (struct plt_entry *plt)
 #endif /* !USE_BRL */
 
 void
-module_free (struct module *mod, void *module_region)
+module_arch_freeing_init (struct module *mod)
 {
-	if (mod && mod->arch.init_unw_table &&
-	    module_region == mod->module_init) {
+	if (mod->arch.init_unw_table) {
 		unw_remove_unwind_table(mod->arch.init_unw_table);
 		mod->arch.init_unw_table = NULL;
 	}
-	vfree(module_region);
 }
 
 /* Have we already seen one of these relocations? */
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 50dfafc3f2c1..5822e8e200e6 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -298,14 +298,10 @@ static inline unsigned long count_stubs(const Elf_Rela *rela, unsigned long n)
 }
 #endif
 
-
-/* Free memory returned from module_alloc */
-void module_free(struct module *mod, void *module_region)
+void module_arch_freeing_init(struct module *mod)
 {
 	kfree(mod->arch.section);
 	mod->arch.section = NULL;
-
-	vfree(module_region);
 }
 
 /* Additional bytes needed in front of individual sections */
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index b89b59158b95..409d152585be 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -55,14 +55,10 @@ void *module_alloc(unsigned long size)
 }
 #endif
 
-/* Free memory returned from module_alloc */
-void module_free(struct module *mod, void *module_region)
+void module_arch_freeing_init(struct module *mod)
 {
-	if (mod) {
-		vfree(mod->arch.syminfo);
-		mod->arch.syminfo = NULL;
-	}
-	vfree(module_region);
+	vfree(mod->arch.syminfo);
+	mod->arch.syminfo = NULL;
 }
 
 static void check_rela(Elf_Rela *rela, struct module *me)
diff --git a/arch/tile/kernel/module.c b/arch/tile/kernel/module.c
index 96447c9160a0..62a597e810d6 100644
--- a/arch/tile/kernel/module.c
+++ b/arch/tile/kernel/module.c
@@ -83,7 +83,7 @@ void module_free(struct module *mod, void *module_region)
 		     0, 0, 0, NULL, NULL, 0);
 
 	/*
-	 * FIXME: If module_region == mod->module_init, trim exception
+	 * FIXME: Add module_arch_freeing_init to trim exception
 	 * table entries.
 	 */
 }
diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index 7eeb9bbfb816..054eac853090 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -82,4 +82,6 @@ int module_finalize(const Elf_Ehdr *hdr,
 /* Any cleanup needed when module leaves. */
 void module_arch_cleanup(struct module *mod);
 
+/* Any cleanup before freeing mod->module_init */
+void module_arch_freeing_init(struct module *mod);
 #endif
diff --git a/kernel/module.c b/kernel/module.c
index 3965511ae133..68be0b1f9e7f 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1804,6 +1804,10 @@ void __weak module_arch_cleanup(struct module *mod)
 {
 }
 
+void __weak module_arch_freeing_init(struct module *mod)
+{
+}
+
 /* Free a module, remove from lists, etc. */
 static void free_module(struct module *mod)
 {
@@ -1841,6 +1845,7 @@ static void free_module(struct module *mod)
 
 	/* This may be NULL, but that's OK */
 	unset_module_init_ro_nx(mod);
+	module_arch_freeing_init(mod);
 	module_free(mod, mod->module_init);
 	kfree(mod->args);
 	percpu_modfree(mod);
@@ -2930,6 +2935,7 @@ static struct module *layout_and_allocate(struct load_info *info, int flags)
 static void module_deallocate(struct module *mod, struct load_info *info)
 {
 	percpu_modfree(mod);
+	module_arch_freeing_init(mod);
 	module_free(mod, mod->module_init);
 	module_free(mod, mod->module_core);
 }
@@ -3055,6 +3061,7 @@ static int do_init_module(struct module *mod)
 	mod->strtab = mod->core_strtab;
 #endif
 	unset_module_init_ro_nx(mod);
+	module_arch_freeing_init(mod);
 	module_free(mod, mod->module_init);
 	mod->module_init = NULL;
 	mod->init_size = 0;
-- 
2.1.0

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From - Thu Nov 08 21:37:12 2018
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From: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ia64
Subject: Re: [PATCH 1/3] module_arch_freeing_init(): new hook for archs
 before module->module_init freed.
Date: Thu, 8 Jan 2015 08:55:24 +0100
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Approved: news@gmane.org
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Cc: linux-kernel@vger.kernel.org, Chris Metcalf <cmetcalf@ezchip.com>,
	Haavard Skinnemoen <hskinnemoen@gmail.com>,
	Tony Luck <tony.luck@intel.com>,
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To: Rusty Russell <rusty@rustcorp.com.au>
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Around Thu 08 Jan 2015 11:28:05 +1030 or thereabout, Rusty Russell wrote:
> Archs have been abusing module_free() to clean up their arch-specific
> allocations.  Since module_free() is also (ab)used by BPF and trace code,
> let's keep it to simple allocations, and provide a hook called before
> that.
> 
> This means that avr32, ia64, parisc and s390 no longer need to implement
> their own module_free() at all.  avr32 doesn't need module_finalize()
> either.

At a glance it looks sane.

> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
> Cc: Chris Metcalf <cmetcalf@ezchip.com>
> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
> Cc: Tony Luck <tony.luck@intel.com>
> Cc: Fenghua Yu <fenghua.yu@intel.com>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-ia64@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-s390@vger.kernel.org

Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>

> ---
>  arch/avr32/kernel/module.c   | 13 +------------
>  arch/ia64/kernel/module.c    |  6 ++----
>  arch/parisc/kernel/module.c  |  6 +-----
>  arch/s390/kernel/module.c    | 10 +++-------
>  arch/tile/kernel/module.c    |  2 +-
>  include/linux/moduleloader.h |  2 ++
>  kernel/module.c              |  7 +++++++
>  7 files changed, 17 insertions(+), 29 deletions(-)

<snipp diff>

-- 
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From - Thu Nov 08 21:37:12 2018
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Newsgroups: gmane.linux.documentation,gmane.linux.kbuild.devel,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
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On 2014-12-25 06:31, Masahiro Yamada wrote:
> Masahiro Yamada (6):
>   kbuild: fix cc-ifversion macro
>   kbuild: do not add $(call ...) to invoke cc-version or cc-fullversion
>   kbuild,gcov: remove unnecessary workaround
>   kbuild,gcov: simplify kernel/gcov/Makefile
>   kbuild: allow cc-ifversion to have the argument for false condition
>   kbuild,gcov: simplify kernel/gcov/Makefile more

Applied to kbuild.git#kbuild, thanks.

Michal

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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 5f5c037..abfa745 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -834,8 +834,9 @@
 #define __NR_getrandom		(__NR_Linux + 339)
 #define __NR_memfd_create	(__NR_Linux + 340)
 #define __NR_bpf		(__NR_Linux + 341)
+#define __NR_execveat		(__NR_Linux + 342)
 
-#define __NR_Linux_syscalls	(__NR_bpf + 1)
+#define __NR_Linux_syscalls	(__NR_execveat + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index fe4f0b8..5a8997d 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -437,6 +437,7 @@
 	ENTRY_SAME(getrandom)
 	ENTRY_SAME(memfd_create)	/* 340 */
 	ENTRY_SAME(bpf)
+	ENTRY_COMP(execveat)
 
 	/* Nothing yet */
 
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Some bios put range that is not fully coverred by root bus resources.
Try to clip them and update them in pci bridge bars.

We'd like to fix other arches instead of just x86.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=85491
Reported-by: Marek Kordik <kordikmarek@gmail.com>
Fixes: 5b28541552ef ("PCI: Restrict 64-bit prefetchable bridge windows to 64-bit resources")
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/lba_pci.c | 26 ++++++++++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 37e71ff..e6ab352 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -692,11 +692,25 @@ lba_fixup_bus(struct pci_bus *bus)
 	*/
 	if (bus->parent) {
 		int i;
+		bool changed = false;
+
+		dev = bus->self;
 		/* PCI-PCI Bridge */
 		pci_read_bridge_bases(bus);
 		for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) {
-			pci_claim_resource(bus->self, i);
+			struct resource *res = &dev->resource[i];
+
+			if (pci_claim_resource(dev, i) >= 0)
+				continue;
+
+			if (pci_bus_clip_resource(dev, res)) {
+				changed = true;
+				if (pci_claim_resource(dev, i) >= 0)
+					continue;
+			}
 		}
+		if (changed)
+			pci_setup_bridge(bus);
 	} else {
 		/* Host-PCI Bridge */
 		int err;
@@ -776,7 +790,15 @@ lba_fixup_bus(struct pci_bus *bus)
 			** that share expansion ROMs (think quad tulip), but
 			** isn't harmful.
 			*/
-			pci_claim_resource(dev, i);
+			if (pci_claim_resource(dev, i) >= 0)
+				continue;
+
+			/* try again with clip */
+			if (i != PCI_ROM_RESOURCE &&
+			    pci_bus_clip_resource(dev, res)) {
+				pci_update_resource(dev, i);
+				pci_claim_resource(dev, i);
+			}
 		}
 
 #ifdef FBB_SUPPORT
-- 
1.8.4.5


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.kernel
Subject: Re: [PATCH 08/10] PCI, parisc: clip firmware assigned resource under
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On 12.01.2015 20:23, Yinghai Lu wrote:
> Some bios put range that is not fully coverred by root bus resources.
> Try to clip them and update them in pci bridge bars.
>
> We'd like to fix other arches instead of just x86.
>
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=85491
> Reported-by: Marek Kordik <kordikmarek@gmail.com>
> Fixes: 5b28541552ef ("PCI: Restrict 64-bit prefetchable bridge windows to 64-bit resources")
> Signed-off-by: Yinghai Lu <yinghai@kernel.org>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: linux-parisc@vger.kernel.org

I tested it on the parisc arch - everything OK.

Acked-by: Helge Deller <deller@gmx.de>

Thanks!
Helge


> ---
>   drivers/parisc/lba_pci.c | 26 ++++++++++++++++++++++++--
>   1 file changed, 24 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
> index 37e71ff..e6ab352 100644
> --- a/drivers/parisc/lba_pci.c
> +++ b/drivers/parisc/lba_pci.c
> @@ -692,11 +692,25 @@ lba_fixup_bus(struct pci_bus *bus)
>   	*/
>   	if (bus->parent) {
>   		int i;
> +		bool changed = false;
> +
> +		dev = bus->self;
>   		/* PCI-PCI Bridge */
>   		pci_read_bridge_bases(bus);
>   		for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) {
> -			pci_claim_resource(bus->self, i);
> +			struct resource *res = &dev->resource[i];
> +
> +			if (pci_claim_resource(dev, i) >= 0)
> +				continue;
> +
> +			if (pci_bus_clip_resource(dev, res)) {
> +				changed = true;
> +				if (pci_claim_resource(dev, i) >= 0)
> +					continue;
> +			}
>   		}
> +		if (changed)
> +			pci_setup_bridge(bus);
>   	} else {
>   		/* Host-PCI Bridge */
>   		int err;
> @@ -776,7 +790,15 @@ lba_fixup_bus(struct pci_bus *bus)
>   			** that share expansion ROMs (think quad tulip), but
>   			** isn't harmful.
>   			*/
> -			pci_claim_resource(dev, i);
> +			if (pci_claim_resource(dev, i) >= 0)
> +				continue;
> +
> +			/* try again with clip */
> +			if (i != PCI_ROM_RESOURCE &&
> +			    pci_bus_clip_resource(dev, res)) {
> +				pci_update_resource(dev, i);
> +				pci_claim_resource(dev, i);
> +			}
>   		}
>
>   #ifdef FBB_SUPPORT
>

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From - Thu Nov 08 21:37:12 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH 1/3] module_arch_freeing_init(): new hook for archs before
 module->module_init freed.
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Cc: Chris Metcalf <cmetcalf@ezchip.com>,
	Haavard Skinnemoen <hskinnemoen@gmail.com>,
	Hans-Christian Egtvedt <egtvedt@samfundet.no>,
	Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
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	linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-s390@vger.kernel.org
To: Rusty Russell <rusty@rustcorp.com.au>, linux-kernel@vger.kernel.org
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On 08.01.2015 01:58, Rusty Russell wrote:
> Archs have been abusing module_free() to clean up their arch-specific
> allocations.  Since module_free() is also (ab)used by BPF and trace code,
> let's keep it to simple allocations, and provide a hook called before
> that.
>
> This means that avr32, ia64, parisc and s390 no longer need to implement
> their own module_free() at all.  avr32 doesn't need module_finalize()
> either.
>
> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
> Cc: Chris Metcalf <cmetcalf@ezchip.com>
> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
> Cc: Tony Luck <tony.luck@intel.com>
> Cc: Fenghua Yu <fenghua.yu@intel.com>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-ia64@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-s390@vger.kernel.org
> ---
>   arch/avr32/kernel/module.c   | 13 +------------
>   arch/ia64/kernel/module.c    |  6 ++----
>   arch/parisc/kernel/module.c  |  6 +-----
>   arch/s390/kernel/module.c    | 10 +++-------
>   arch/tile/kernel/module.c    |  2 +-
>   include/linux/moduleloader.h |  2 ++
>   kernel/module.c              |  7 +++++++
>   7 files changed, 17 insertions(+), 29 deletions(-)

I successfully tested it on the parisc arch.

Acked-by: Helge Deller <deller@gmx.de>

Thanks!
Helge
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From: Yinghai Lu <yinghai@kernel.org>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.pci,gmane.linux.ports.parisc
Subject: [PATCH v2 08/10] PCI, parisc: clip firmware assigned resource under parent bridge's
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Some bios put range that is not fully coverred by root bus resources.
Try to clip them and update them in pci bridge bars.

We'd like to fix other arches instead of just x86.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=85491
Reported-by: Marek Kordik <kordikmarek@gmail.com>
Fixes: 5b28541552ef ("PCI: Restrict 64-bit prefetchable bridge windows to 64-bit resources")
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/lba_pci.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 37e71ff..dceb9dd 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -694,9 +694,8 @@ lba_fixup_bus(struct pci_bus *bus)
 		int i;
 		/* PCI-PCI Bridge */
 		pci_read_bridge_bases(bus);
-		for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) {
-			pci_claim_resource(bus->self, i);
-		}
+		for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++)
+			pci_claim_bridge_resource(bus->self, i);
 	} else {
 		/* Host-PCI Bridge */
 		int err;
-- 
1.8.4.5


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Subject: [PATCH 0/9] video: fbdev: Deletion of some unnecessary checks
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Mon, 19 Jan 2015 17:57:25 +0100

Further update suggestions were taken into account after a patch was applied
from static source code analysis.

Markus Elfring (9):
  fbdev: Deletion of checks before the function call "iounmap"
  One function call less in tdfxfb_probe() after error detection
  One function call less in vesafb_probe() after error detection
  Add check for return value of ioremap() in cirrusfb_pci_register()
  Less function calls in trident_pci_probe() after error detection
  One function call less in pvr2fb_common_init() after error detection
  One function call less in tgafb_register() after error detection
  Less function calls in valkyriefb_init() after error detection
  Less function calls in w100fb_probe() after error detection

 drivers/video/fbdev/aty/atyfb_base.c   | 15 +++++--------
 drivers/video/fbdev/cirrusfb.c         | 10 ++++++---
 drivers/video/fbdev/controlfb.c        |  6 ++---
 drivers/video/fbdev/efifb.c            |  3 +--
 drivers/video/fbdev/hgafb.c            |  3 +--
 drivers/video/fbdev/hpfb.c             |  3 +--
 drivers/video/fbdev/i810/i810_main.c   |  6 ++---
 drivers/video/fbdev/macfb.c            | 15 +++++--------
 drivers/video/fbdev/offb.c             |  3 +--
 drivers/video/fbdev/pvr2fb.c           | 15 ++++++-------
 drivers/video/fbdev/s1d13xxxfb.c       |  3 +--
 drivers/video/fbdev/s3fb.c             |  6 ++---
 drivers/video/fbdev/sh_mobile_hdmi.c   |  6 ++---
 drivers/video/fbdev/sh_mobile_lcdcfb.c |  3 +--
 drivers/video/fbdev/simplefb.c         |  3 +--
 drivers/video/fbdev/stifb.c            |  3 +--
 drivers/video/fbdev/tdfxfb.c           | 22 +++++++++----------
 drivers/video/fbdev/tgafb.c            | 20 ++++++++---------
 drivers/video/fbdev/tridentfb.c        | 15 +++++++------
 drivers/video/fbdev/valkyriefb.c       | 37 ++++++++++++++++++-------------
 drivers/video/fbdev/vesafb.c           | 11 +++++-----
 drivers/video/fbdev/w100fb.c           | 40 +++++++++++++++++-----------------
 22 files changed, 116 insertions(+), 132 deletions(-)

-- 
2.2.2


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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 18 Jan 2015 22:45:39 +0100

The iounmap() function performs also input parameter validation.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/video/fbdev/aty/atyfb_base.c   | 15 +++++----------
 drivers/video/fbdev/cirrusfb.c         |  3 +--
 drivers/video/fbdev/controlfb.c        |  6 ++----
 drivers/video/fbdev/efifb.c            |  3 +--
 drivers/video/fbdev/hgafb.c            |  3 +--
 drivers/video/fbdev/hpfb.c             |  3 +--
 drivers/video/fbdev/i810/i810_main.c   |  6 ++----
 drivers/video/fbdev/macfb.c            | 15 +++++----------
 drivers/video/fbdev/offb.c             |  3 +--
 drivers/video/fbdev/pvr2fb.c           |  3 +--
 drivers/video/fbdev/s1d13xxxfb.c       |  3 +--
 drivers/video/fbdev/s3fb.c             |  6 ++----
 drivers/video/fbdev/sh_mobile_hdmi.c   |  6 ++----
 drivers/video/fbdev/sh_mobile_lcdcfb.c |  3 +--
 drivers/video/fbdev/simplefb.c         |  3 +--
 drivers/video/fbdev/stifb.c            |  3 +--
 drivers/video/fbdev/tdfxfb.c           |  6 ++----
 drivers/video/fbdev/tgafb.c            |  3 +--
 drivers/video/fbdev/tridentfb.c        |  6 ++----
 drivers/video/fbdev/valkyriefb.c       |  9 +++------
 drivers/video/fbdev/vesafb.c           |  6 ++----
 drivers/video/fbdev/w100fb.c           |  9 +++------
 22 files changed, 41 insertions(+), 82 deletions(-)

diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
index 37ec09b..0f4b147 100644
--- a/drivers/video/fbdev/aty/atyfb_base.c
+++ b/drivers/video/fbdev/aty/atyfb_base.c
@@ -3605,10 +3605,8 @@ err_release_io:
 #ifdef __sparc__
 	kfree(par->mmap_map);
 #else
-	if (par->ati_regbase)
-		iounmap(par->ati_regbase);
-	if (info->screen_base)
-		iounmap(info->screen_base);
+	iounmap(par->ati_regbase);
+	iounmap(info->screen_base);
 #endif
 err_release_mem:
 	if (par->aux_start)
@@ -3733,13 +3731,10 @@ static void atyfb_remove(struct fb_info *info)
 	}
 #endif
 #ifndef __sparc__
-	if (par->ati_regbase)
-		iounmap(par->ati_regbase);
-	if (info->screen_base)
-		iounmap(info->screen_base);
+	iounmap(par->ati_regbase);
+	iounmap(info->screen_base);
 #ifdef __BIG_ENDIAN
-	if (info->sprite.addr)
-		iounmap(info->sprite.addr);
+	iounmap(info->sprite.addr);
 #endif
 #endif
 #ifdef __sparc__
diff --git a/drivers/video/fbdev/cirrusfb.c b/drivers/video/fbdev/cirrusfb.c
index d992aa5..d8b3359 100644
--- a/drivers/video/fbdev/cirrusfb.c
+++ b/drivers/video/fbdev/cirrusfb.c
@@ -2164,8 +2164,7 @@ err_release_regions:
 #endif
 	pci_release_regions(pdev);
 err_release_fb:
-	if (cinfo->laguna_mmio != NULL)
-		iounmap(cinfo->laguna_mmio);
+	iounmap(cinfo->laguna_mmio);
 	framebuffer_release(info);
 err_out:
 	return ret;
diff --git a/drivers/video/fbdev/controlfb.c b/drivers/video/fbdev/controlfb.c
index 080fdd2..d386fed 100644
--- a/drivers/video/fbdev/controlfb.c
+++ b/drivers/video/fbdev/controlfb.c
@@ -1068,10 +1068,8 @@ static void control_cleanup(void)
 	if (!p)
 		return;
 
-	if (p->cmap_regs)
-		iounmap(p->cmap_regs);
-	if (p->control_regs)
-		iounmap(p->control_regs);
+	iounmap(p->cmap_regs);
+	iounmap(p->control_regs);
 	if (p->frame_buffer) {
 		if (p->control_use_bank2)
 			p->frame_buffer -= 0x600000;
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index 4bfff34..a6d08f0 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -65,8 +65,7 @@ static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green,
 
 static void efifb_destroy(struct fb_info *info)
 {
-	if (info->screen_base)
-		iounmap(info->screen_base);
+	iounmap(info->screen_base);
 	if (request_mem_succeeded)
 		release_mem_region(info->apertures->ranges[0].base,
 				   info->apertures->ranges[0].size);
diff --git a/drivers/video/fbdev/hgafb.c b/drivers/video/fbdev/hgafb.c
index 5ff9fe2..76b231e 100644
--- a/drivers/video/fbdev/hgafb.c
+++ b/drivers/video/fbdev/hgafb.c
@@ -552,8 +552,7 @@ static int hgafb_probe(struct platform_device *pdev)
 
 	if (! hga_card_detect()) {
 		printk(KERN_INFO "hgafb: HGA card not detected.\n");
-		if (hga_vram)
-			iounmap(hga_vram);
+		iounmap(hga_vram);
 		return -EINVAL;
 	}
 
diff --git a/drivers/video/fbdev/hpfb.c b/drivers/video/fbdev/hpfb.c
index a1b7e5f..9b47102 100644
--- a/drivers/video/fbdev/hpfb.c
+++ b/drivers/video/fbdev/hpfb.c
@@ -355,8 +355,7 @@ static void hpfb_remove_one(struct dio_dev *d)
 		iounmap((void *)fb_regs);
 	release_mem_region(d->resource.start, resource_size(&d->resource));
 	fb_dealloc_cmap(&fb_info.cmap);
-	if (fb_info.screen_base)
-		iounmap(fb_info.screen_base);
+	iounmap(fb_info.screen_base);
 }
 
 static struct dio_device_id hpfb_dio_tbl[] = {
diff --git a/drivers/video/fbdev/i810/i810_main.c b/drivers/video/fbdev/i810/i810_main.c
index bb674e4..ce3a585 100644
--- a/drivers/video/fbdev/i810/i810_main.c
+++ b/drivers/video/fbdev/i810/i810_main.c
@@ -2105,10 +2105,8 @@ static void i810fb_release_resource(struct fb_info *info,
 	if (par->i810_gtt.i810_fb_memory)
 		agp_free_memory(gtt->i810_fb_memory);
 
-	if (par->mmio_start_virtual)
-		iounmap(par->mmio_start_virtual);
-	if (par->aperture.virtual)
-		iounmap(par->aperture.virtual);
+	iounmap(par->mmio_start_virtual);
+	iounmap(par->aperture.virtual);
 	kfree(par->edid);
 	if (par->res_flags & FRAMEBUFFER_REQ)
 		release_mem_region(par->aperture.physical,
diff --git a/drivers/video/fbdev/macfb.c b/drivers/video/fbdev/macfb.c
index cda7587..dde0520 100644
--- a/drivers/video/fbdev/macfb.c
+++ b/drivers/video/fbdev/macfb.c
@@ -541,16 +541,11 @@ static void __init macfb_setup(char *options)
 
 static void __init iounmap_macfb(void)
 {
-	if (dafb_cmap_regs)
-		iounmap(dafb_cmap_regs);
-	if (v8_brazil_cmap_regs)
-		iounmap(v8_brazil_cmap_regs);
-	if (rbv_cmap_regs)
-		iounmap(rbv_cmap_regs);
-	if (civic_cmap_regs)
-		iounmap(civic_cmap_regs);
-	if (csc_cmap_regs)
-		iounmap(csc_cmap_regs);
+	iounmap(dafb_cmap_regs);
+	iounmap(v8_brazil_cmap_regs);
+	iounmap(rbv_cmap_regs);
+	iounmap(civic_cmap_regs);
+	iounmap(csc_cmap_regs);
 }
 
 static int __init macfb_init(void)
diff --git a/drivers/video/fbdev/offb.c b/drivers/video/fbdev/offb.c
index 43a0a52..5efce99 100644
--- a/drivers/video/fbdev/offb.c
+++ b/drivers/video/fbdev/offb.c
@@ -281,8 +281,7 @@ static int offb_set_par(struct fb_info *info)
 
 static void offb_destroy(struct fb_info *info)
 {
-	if (info->screen_base)
-		iounmap(info->screen_base);
+	iounmap(info->screen_base);
 	release_mem_region(info->apertures->ranges[0].base, info->apertures->ranges[0].size);
 	framebuffer_release(info);
 }
diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c
index 7c74f58..7aa4ef1 100644
--- a/drivers/video/fbdev/pvr2fb.c
+++ b/drivers/video/fbdev/pvr2fb.c
@@ -841,8 +841,7 @@ static int pvr2fb_common_init(void)
 	return 0;
 
 out_err:
-	if (fb_info->screen_base)
-		iounmap(fb_info->screen_base);
+	iounmap(fb_info->screen_base);
 	if (par->mmio_base)
 		iounmap((void *)par->mmio_base);
 
diff --git a/drivers/video/fbdev/s1d13xxxfb.c b/drivers/video/fbdev/s1d13xxxfb.c
index 83433cb..dff38b7 100644
--- a/drivers/video/fbdev/s1d13xxxfb.c
+++ b/drivers/video/fbdev/s1d13xxxfb.c
@@ -750,8 +750,7 @@ s1d13xxxfb_remove(struct platform_device *pdev)
 
 		fb_dealloc_cmap(&info->cmap);
 
-		if (info->screen_base)
-			iounmap(info->screen_base);
+		iounmap(info->screen_base);
 
 		framebuffer_release(info);
 	}
diff --git a/drivers/video/fbdev/s3fb.c b/drivers/video/fbdev/s3fb.c
index f0ae61a..3d9d45f 100644
--- a/drivers/video/fbdev/s3fb.c
+++ b/drivers/video/fbdev/s3fb.c
@@ -1382,8 +1382,7 @@ err_find_mode:
 #ifdef CONFIG_FB_S3_DDC
 	if (par->ddc_registered)
 		i2c_del_adapter(&par->ddc_adapter);
-	if (par->mmio)
-		iounmap(par->mmio);
+	iounmap(par->mmio);
 #endif
 	pci_iounmap(dev, info->screen_base);
 err_iomap:
@@ -1419,8 +1418,7 @@ static void s3_pci_remove(struct pci_dev *dev)
 #ifdef CONFIG_FB_S3_DDC
 		if (par->ddc_registered)
 			i2c_del_adapter(&par->ddc_adapter);
-		if (par->mmio)
-			iounmap(par->mmio);
+		iounmap(par->mmio);
 #endif
 
 		pci_iounmap(dev, info->screen_base);
diff --git a/drivers/video/fbdev/sh_mobile_hdmi.c b/drivers/video/fbdev/sh_mobile_hdmi.c
index 7c72a3f..2a7187d 100644
--- a/drivers/video/fbdev/sh_mobile_hdmi.c
+++ b/drivers/video/fbdev/sh_mobile_hdmi.c
@@ -1397,8 +1397,7 @@ static int __init sh_hdmi_probe(struct platform_device *pdev)
 ecodec:
 	free_irq(irq, hdmi);
 ereqirq:
-	if (hdmi->htop1)
-		iounmap(hdmi->htop1);
+	iounmap(hdmi->htop1);
 emap_htop1:
 	pm_runtime_put(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
@@ -1428,8 +1427,7 @@ static int __exit sh_hdmi_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 	clk_disable_unprepare(hdmi->hdmi_clk);
 	clk_put(hdmi->hdmi_clk);
-	if (hdmi->htop1)
-		iounmap(hdmi->htop1);
+	iounmap(hdmi->htop1);
 	iounmap(hdmi->base);
 	release_mem_region(res->start, resource_size(res));
 
diff --git a/drivers/video/fbdev/sh_mobile_lcdcfb.c b/drivers/video/fbdev/sh_mobile_lcdcfb.c
index d3013cd..4f9a25b 100644
--- a/drivers/video/fbdev/sh_mobile_lcdcfb.c
+++ b/drivers/video/fbdev/sh_mobile_lcdcfb.c
@@ -2489,8 +2489,7 @@ static int sh_mobile_lcdc_remove(struct platform_device *pdev)
 		clk_put(priv->dot_clk);
 	}
 
-	if (priv->base)
-		iounmap(priv->base);
+	iounmap(priv->base);
 
 	if (priv->irq)
 		free_irq(priv->irq, priv);
diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c
index 92cac80..40e6b33 100644
--- a/drivers/video/fbdev/simplefb.c
+++ b/drivers/video/fbdev/simplefb.c
@@ -72,8 +72,7 @@ static int simplefb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
 
 static void simplefb_destroy(struct fb_info *info)
 {
-	if (info->screen_base)
-		iounmap(info->screen_base);
+	iounmap(info->screen_base);
 }
 
 static struct fb_ops simplefb_ops = {
diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
index 86621fa..ea12305 100644
--- a/drivers/video/fbdev/stifb.c
+++ b/drivers/video/fbdev/stifb.c
@@ -1374,8 +1374,7 @@ stifb_cleanup(void)
 			unregister_framebuffer(sti->info);
 			release_mem_region(info->fix.mmio_start, info->fix.mmio_len);
 		        release_mem_region(info->fix.smem_start, info->fix.smem_len);
-				if (info->screen_base)
-					iounmap(info->screen_base);
+				iounmap(info->screen_base);
 		        fb_dealloc_cmap(&info->cmap);
 		        framebuffer_release(info);
 		}
diff --git a/drivers/video/fbdev/tdfxfb.c b/drivers/video/fbdev/tdfxfb.c
index f761fe3..69d4062 100644
--- a/drivers/video/fbdev/tdfxfb.c
+++ b/drivers/video/fbdev/tdfxfb.c
@@ -1572,15 +1572,13 @@ out_err_iobase:
 	release_region(pci_resource_start(pdev, 2),
 		       pci_resource_len(pdev, 2));
 out_err_screenbase:
-	if (info->screen_base)
-		iounmap(info->screen_base);
+	iounmap(info->screen_base);
 	release_mem_region(info->fix.smem_start, pci_resource_len(pdev, 1));
 out_err_regbase:
 	/*
 	 * Cleanup after anything that was remapped/allocated.
 	 */
-	if (default_par->regbase_virt)
-		iounmap(default_par->regbase_virt);
+	iounmap(default_par->regbase_virt);
 	release_mem_region(info->fix.mmio_start, info->fix.mmio_len);
 out_err:
 	framebuffer_release(info);
diff --git a/drivers/video/fbdev/tgafb.c b/drivers/video/fbdev/tgafb.c
index 65ba992..b6fb7e8 100644
--- a/drivers/video/fbdev/tgafb.c
+++ b/drivers/video/fbdev/tgafb.c
@@ -1520,8 +1520,7 @@ static int tgafb_register(struct device *dev)
  err2:
 	fb_dealloc_cmap(&info->cmap);
  err1:
-	if (mem_base)
-		iounmap(mem_base);
+	iounmap(mem_base);
 	release_mem_region(bar0_start, bar0_len);
  err0:
 	framebuffer_release(info);
diff --git a/drivers/video/fbdev/tridentfb.c b/drivers/video/fbdev/tridentfb.c
index 7ed9a22..71567401 100644
--- a/drivers/video/fbdev/tridentfb.c
+++ b/drivers/video/fbdev/tridentfb.c
@@ -1531,13 +1531,11 @@ static int trident_pci_probe(struct pci_dev *dev,
 
 out_unmap2:
 	kfree(info->pixmap.addr);
-	if (info->screen_base)
-		iounmap(info->screen_base);
+	iounmap(info->screen_base);
 	release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
 	disable_mmio(info->par);
 out_unmap1:
-	if (default_par->io_virt)
-		iounmap(default_par->io_virt);
+	iounmap(default_par->io_virt);
 	release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
 	framebuffer_release(info);
 	return err;
diff --git a/drivers/video/fbdev/valkyriefb.c b/drivers/video/fbdev/valkyriefb.c
index 275fb98..2a9213b 100644
--- a/drivers/video/fbdev/valkyriefb.c
+++ b/drivers/video/fbdev/valkyriefb.c
@@ -400,12 +400,9 @@ int __init valkyriefb_init(void)
  out_cmap_free:
 	fb_dealloc_cmap(&p->info.cmap);
  out_free:
-	if (p->frame_buffer)
-		iounmap(p->frame_buffer);
-	if (p->cmap_regs)
-		iounmap(p->cmap_regs);
-	if (p->valkyrie_regs)
-		iounmap(p->valkyrie_regs);
+	iounmap(p->frame_buffer);
+	iounmap(p->cmap_regs);
+	iounmap(p->valkyrie_regs);
 	kfree(p);
 	return err;
 }
diff --git a/drivers/video/fbdev/vesafb.c b/drivers/video/fbdev/vesafb.c
index d79a0ac..693d18e 100644
--- a/drivers/video/fbdev/vesafb.c
+++ b/drivers/video/fbdev/vesafb.c
@@ -176,8 +176,7 @@ static int vesafb_setcolreg(unsigned regno, unsigned red, unsigned green,
 static void vesafb_destroy(struct fb_info *info)
 {
 	fb_dealloc_cmap(&info->cmap);
-	if (info->screen_base)
-		iounmap(info->screen_base);
+	iounmap(info->screen_base);
 	release_mem_region(info->apertures->ranges[0].base, info->apertures->ranges[0].size);
 }
 
@@ -492,8 +491,7 @@ static int vesafb_probe(struct platform_device *dev)
 	fb_info(info, "%s frame buffer device\n", info->fix.id);
 	return 0;
 err:
-	if (info->screen_base)
-		iounmap(info->screen_base);
+	iounmap(info->screen_base);
 	framebuffer_release(info);
 	release_mem_region(vesafb_fix.smem_start, size_total);
 	return err;
diff --git a/drivers/video/fbdev/w100fb.c b/drivers/video/fbdev/w100fb.c
index 10951c8..aeb53eb 100644
--- a/drivers/video/fbdev/w100fb.c
+++ b/drivers/video/fbdev/w100fb.c
@@ -770,12 +770,9 @@ out:
 		fb_dealloc_cmap(&info->cmap);
 		kfree(info->pseudo_palette);
 	}
-	if (remapped_fbuf != NULL)
-		iounmap(remapped_fbuf);
-	if (remapped_regs != NULL)
-		iounmap(remapped_regs);
-	if (remapped_base != NULL)
-		iounmap(remapped_base);
+	iounmap(remapped_fbuf);
+	iounmap(remapped_regs);
+	iounmap(remapped_base);
 	if (info)
 		framebuffer_release(info);
 	return err;
-- 
2.2.2

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From - Thu Nov 08 21:37:13 2018
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X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Yijing Wang <wangyijing@huawei.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.pci,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.ports.parisc
Subject: [PATCH v2 22/30] PCI/Parisc: Use pci_scan_root_bus() for simplicity
Date: Wed, 21 Jan 2015 08:30:17 +0800
Lines: 94
Approved: news@gmane.org
Message-ID: <1421800225-26230-23-git-send-email-wangyijing@huawei.com>
References: <1421800225-26230-1-git-send-email-wangyijing@huawei.com>
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Cc: Jiang Liu <jiang.liu@linux.intel.com>, <linux-pci@vger.kernel.org>,
	Yinghai Lu <yinghai@kernel.org>,
	<linux-kernel@vger.kernel.org>,
	Marc Zyngier <marc.zyngier@arm.com>,
	<linux-arm-kernel@lists.infradead.org>,
	Russell King <linux@arm.linux.org.uk>, <x86@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Rusty Russell <rusty@rustcorp.com.au>,
	Tony Luck <tony.luck@intel.com>, <linux-ia64@vger.kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	"Guan Xuetao" <gxt@mprc.pku.edu.cn>, <linux-alpha@vger.kernel.org>,
	<linux-m68k@lists.linux-m68k.org>, Liviu Dudau <liviu@dudau.co.uk>,
	"Arnd Bergmann" <arnd@arndb.de>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	"Yijing Wang" <wangyijing@huawei.com>,
	Yijing Wang <wangyijing0307@gmail.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	<linux-parisc@vger.kernel.org>
To: Bjorn Helgaas <bhelgaas@google.com>
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From: Yijing Wang <wangyijing0307@gmail.com>

Now pci_bus_add_devices() has been ripped out
from pci_scan_root_bus(), we could use pci_scan_root_bus()
instead of pci_create_root_bus() + pci_scan_child_bus()
for simplicity. We could also remove the pci bus
resource(dino_current_bus,255) and pci_bus_update_busn_res_end(),
because pci_scan_root_bus() would do the same thing.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |   11 ++---------
 drivers/parisc/lba_pci.c |    7 ++-----
 2 files changed, 4 insertions(+), 14 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index a0580af..e5ee339 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -977,15 +977,11 @@ static int __init dino_probe(struct parisc_device *dev)
 	if (dino_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
 
-	dino_dev->hba.bus_num.start = dino_current_bus;
-	dino_dev->hba.bus_num.end = 255;
-	dino_dev->hba.bus_num.flags = IORESOURCE_BUS;
-	pci_add_resource(&resources, &dino_dev->hba.bus_num);
 	/*
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev,
+	dino_dev->hba.hba_bus = bus = pci_scan_root_bus(&dev->dev,
 			 dino_current_bus, &dino_cfg_ops, NULL, &resources);
 	if (!bus) {
 		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
@@ -996,13 +992,10 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
-	max = pci_scan_child_bus(bus);
-	pci_bus_update_busn_res_end(bus, max);
-
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
 	 */
-	dino_current_bus = max + 1;
+	dino_current_bus = bus->busn_res.end + 1;
 	pci_bus_assign_resources(bus);
 	pci_bus_add_devices(bus);
 	return 0;
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 37e71ff..254bf1a 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1423,7 +1423,6 @@ lba_driver_probe(struct parisc_device *dev)
 	void *tmp_obj;
 	char *version;
 	void __iomem *addr = ioremap_nocache(dev->hpa.start, 4096);
-	int max;
 
 	/* Read HW Rev First */
 	func_class = READ_REG32(addr + LBA_FCLASS);
@@ -1564,15 +1563,13 @@ lba_driver_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
-		pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
+		pci_scan_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
 				    cfg_ops, NULL, &resources);
 	if (!lba_bus) {
 		pci_free_resource_list(&resources);
 		return 0;
 	}
 
-	max = pci_scan_child_bus(lba_bus);
-
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
 		/* assign resources to un-initialized devices */
@@ -1600,7 +1597,7 @@ lba_driver_probe(struct parisc_device *dev)
 		lba_dev->flags |= LBA_FLAG_SKIP_PROBE;
 	}
 
-	lba_next_bus = max + 1;
+	lba_next_bus = pci_bus_child_max_busnr(lba_bus) + 1;
 	pci_bus_add_devices(lba_bus);
 
 	/* Whew! Finally done! Tell services we got this one covered. */
-- 
1.7.1


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Subject: linux-next: tidy up of trees
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Hi all,

[affected tree contacts are bcc'd on this email]

I have decided to do a bit of a tidy up of the trees in linux-next and
my first pass is to remove any tree that has not been updated on over a
year (since next-20140120).  The following 29 trees have been removed
today (of these, 13 have not been updated for more than 2 years).  If
you want a tree restored, just drop me a line - it is easy to do.

Most if the trees are empty, but for the others I have included a
diffstat.

configfs
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/configfs.git#l=
inux-next

cpupowerutils
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/brodo/cpupowerutils.=
git#master

dwmw2
Git URL: git://git.infradead.org/users/dwmw2/random-2.6.git#master

embedded
Git URL: git://git.infradead.org/embedded-2.6.git#master

ep93xx
Git URL: git://github.com/RyanMallon/linux-ep93xx.git#ep93xx-for-next
 arch/arm/mach-ep93xx/Kconfig                 |   1 +
 arch/arm/mach-ep93xx/core.c                  | 110 +++++++++++++++++++++++=
+++-
 arch/arm/mach-ep93xx/include/mach/platform.h |   3 +-
 3 files changed, 111 insertions(+), 3 deletions(-)

fbdev
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/plagnioj/linux-fbdev=
.git#for-next

firmware
Git URL: git://git.infradead.org/users/dwmw2/firmware-2.6.git#master

fsnotify
Git URL: git://git.infradead.org/users/eparis/notify.git#for-next

fw-nohz
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynti=
cks.git#nohz/next

hwspinlock
Git URL: git://github.com/ohadbc/hwspinlock-next.git#linux-next

input-mt
Git URL: git://github.com/rydberg/linux.git#for-next

ixp4xx
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux.git#next

kconfig
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-kconfi=
g.git#for-next

logfs
Git URL: git://github.com/prasad-joshi/logfs_upstream.git#master
 fs/logfs/dev_mtd.c | 2 +-
 fs/logfs/super.c   | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

lzo-update
Git URL: git://github.com/markus-oberhumer/linux.git#lzo-update
 lib/lzo/lzo1x_decompress_safe.c | 4 ++++
 lib/lzo/lzodefs.h               | 6 ++++++
 2 files changed, 10 insertions(+)

md-current
Git URL: git://neil.brown.name/md#for-linus

msm
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm.git=
#for-next

omfs
Git URL: git://github.com/bcopeland/omfs.git#for-next

openrisc
Git URL: git://openrisc.net/jonas/linux#for-upstream

oprofile
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile.git#fo=
r-next

parisc
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git#=
for-next

pcmcia
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia.git#mas=
ter

signal
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal.git#for-=
next

sysctl
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl.git#=
master

uclinux
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/gerg/uclinux.git#for=
-next

uml
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml.git#next
 arch/um/include/asm/Kbuild                  |   1 +
 arch/um/include/asm/processor-generic.h     |   3 -
 arch/um/include/shared/os.h                 |   2 -
 arch/um/include/shared/skas/proc_mm.h       |  44 ------
 arch/um/include/shared/skas/skas.h          |   3 -
 arch/um/include/shared/skas_ptrace.h        |  14 --
 arch/um/kernel/ptrace.c                     |  32 ----
 arch/um/kernel/reboot.c                     |  35 ++---
 arch/um/kernel/skas/mmu.c                   |  68 +++------
 arch/um/kernel/skas/process.c               |  27 ----
 arch/um/kernel/trap.c                       |   2 +-
 arch/um/kernel/um_arch.c                    |  10 --
 arch/um/os-Linux/process.c                  |  16 --
 arch/um/os-Linux/skas/mem.c                 | 100 ++----------
 arch/um/os-Linux/skas/process.c             | 200 ++++++------------------
 arch/um/os-Linux/start_up.c                 | 154 -------------------
 arch/um/sys-ia64/sysdep/skas_ptrace.h       |  22 ---
 arch/um/sys-ppc/shared/sysdep/skas_ptrace.h |  22 ---
 arch/x86/um/ldt.c                           | 227 ++++++------------------=
----
 arch/x86/um/shared/sysdep/faultinfo_32.h    |   3 -
 arch/x86/um/shared/sysdep/faultinfo_64.h    |   3 -
 arch/x86/um/shared/sysdep/skas_ptrace.h     |  22 ---
 22 files changed, 149 insertions(+), 861 deletions(-)

uprobes
Git URL: git://github.com/srikard/linux.git#for-next

viafb
Git URL: git://github.com/schandinat/linux-2.6.git#viafb-next

writeback
Git URL: git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux.git#writeb=
ack-for-next

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

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From - Thu Nov 08 21:37:13 2018
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From: Andrey Ryabinin <a.ryabinin@samsung.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v9 14/17] mm: vmalloc: pass additional vm_flags to
 __vmalloc_node_range()
Date: Wed, 21 Jan 2015 19:51:42 +0300
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Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.ports.mips.general:46563 gmane.linux.kernel:1871147 gmane.linux.kernel.mm:127580 gmane.linux.ports.arm.kernel:388070 gmane.linux.ports.parisc:25555 gmane.linux.ports.sparc:20428
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/46563>

For instrumenting global variables KASan will shadow memory backing
memory for modules. So on module loading we will need to allocate
shadow memory and map it at exact virtual address.
__vmalloc_node_range() seems like the best fit for that purpose,
except it puts a guard hole after allocated area.

Now we have VM_NO_GUARD flag disabling guard page, so we need to
pass into __vmalloc_node_range(). Add new parameter 'vm_flags'
to __vmalloc_node_range() function.

Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
---
 arch/arm/kernel/module.c       |  2 +-
 arch/arm64/kernel/module.c     |  2 +-
 arch/mips/kernel/module.c      |  2 +-
 arch/parisc/kernel/module.c    |  2 +-
 arch/s390/kernel/module.c      |  2 +-
 arch/sparc/kernel/module.c     |  2 +-
 arch/unicore32/kernel/module.c |  2 +-
 arch/x86/kernel/module.c       |  2 +-
 include/linux/vmalloc.h        |  4 +++-
 mm/vmalloc.c                   | 10 ++++++----
 10 files changed, 17 insertions(+), 13 deletions(-)

diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index bea7db9..2e11961 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -41,7 +41,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
+				GFP_KERNEL, PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index 9b6f71d..5958d6d 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -35,7 +35,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
+				    GFP_KERNEL, PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index 2a52568..1833f51 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -47,7 +47,7 @@ static DEFINE_SPINLOCK(dbe_lock);
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULE_START, MODULE_END,
-				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
+				GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 50dfafc..0d498ef 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -219,7 +219,7 @@ void *module_alloc(unsigned long size)
 	 * init_data correctly */
 	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
 				    GFP_KERNEL | __GFP_HIGHMEM,
-				    PAGE_KERNEL_RWX, NUMA_NO_NODE,
+				    PAGE_KERNEL_RWX, 0, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index b89b591..411a7ee 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -50,7 +50,7 @@ void *module_alloc(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
+				    GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 #endif
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index 97655e0..192a617 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -29,7 +29,7 @@ static void *module_map(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
+				GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #else
diff --git a/arch/unicore32/kernel/module.c b/arch/unicore32/kernel/module.c
index dc41f6d..e191b34 100644
--- a/arch/unicore32/kernel/module.c
+++ b/arch/unicore32/kernel/module.c
@@ -25,7 +25,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
+				GFP_KERNEL, PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index e69f988..e830e61 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -88,7 +88,7 @@ void *module_alloc(unsigned long size)
 	return __vmalloc_node_range(size, 1,
 				    MODULES_VADDR + get_module_load_offset(),
 				    MODULES_END, GFP_KERNEL | __GFP_HIGHMEM,
-				    PAGE_KERNEL_EXEC, NUMA_NO_NODE,
+				    PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 1526fe7..7d7acb3 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -76,7 +76,9 @@ extern void *vmalloc_32_user(unsigned long size);
 extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
 extern void *__vmalloc_node_range(unsigned long size, unsigned long align,
 			unsigned long start, unsigned long end, gfp_t gfp_mask,
-			pgprot_t prot, int node, const void *caller);
+			pgprot_t prot, unsigned long vm_flags, int node,
+			const void *caller);
+
 extern void vfree(const void *addr);
 
 extern void *vmap(struct page **pages, unsigned int count,
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 2e74e99..35b25e1 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1619,6 +1619,7 @@ fail:
  *	@end:		vm area range end
  *	@gfp_mask:	flags for the page level allocator
  *	@prot:		protection mask for the allocated pages
+ *	@vm_flags:	additional vm area flags (e.g. %VM_NO_GUARD)
  *	@node:		node to use for allocation or NUMA_NO_NODE
  *	@caller:	caller's return address
  *
@@ -1628,7 +1629,8 @@ fail:
  */
 void *__vmalloc_node_range(unsigned long size, unsigned long align,
 			unsigned long start, unsigned long end, gfp_t gfp_mask,
-			pgprot_t prot, int node, const void *caller)
+			pgprot_t prot, unsigned long vm_flags, int node,
+			const void *caller)
 {
 	struct vm_struct *area;
 	void *addr;
@@ -1638,8 +1640,8 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	if (!size || (size >> PAGE_SHIFT) > totalram_pages)
 		goto fail;
 
-	area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED,
-				  start, end, node, gfp_mask, caller);
+	area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED |
+				vm_flags, start, end, node, gfp_mask, caller);
 	if (!area)
 		goto fail;
 
@@ -1688,7 +1690,7 @@ static void *__vmalloc_node(unsigned long size, unsigned long align,
 			    int node, const void *caller)
 {
 	return __vmalloc_node_range(size, align, VMALLOC_START, VMALLOC_END,
-				gfp_mask, prot, node, caller);
+				gfp_mask, prot, 0, node, caller);
 }
 
 void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot)
-- 
2.2.1




From - Thu Nov 08 21:37:13 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Andrey Ryabinin <a.ryabinin@samsung.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v10 14/17] mm: vmalloc: pass additional vm_flags to
 __vmalloc_node_range()
Date: Thu, 29 Jan 2015 18:11:58 +0300
Lines: 192
Approved: news@gmane.org
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Cc: Andrey Ryabinin <a.ryabinin@samsung.com>,
        Dmitry Vyukov <dvyukov@google.com>,
        Konstantin Serebryany <kcc@google.com>,
        Dmitry Chernenkov <dmitryc@google.com>,
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        Konstantin Khlebnikov <koct9i@gmail.com>,
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        Will Deacon <will.deacon@arm.com>,
        Ralf Baechle <ralf@linux-mips.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <del
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Xref: news.gmane.org gmane.linux.ports.mips.general:46687 gmane.linux.kernel:1878161 gmane.linux.kernel.mm:127995 gmane.linux.ports.arm.kernel:390377 gmane.linux.ports.parisc:25556 gmane.linux.ports.sparc:20439
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/46687>

For instrumenting global variables KASan will shadow memory backing
memory for modules. So on module loading we will need to allocate
shadow memory and map it at exact virtual address.
__vmalloc_node_range() seems like the best fit for that purpose,
except it puts a guard hole after allocated area.

Now we have VM_NO_GUARD flag disabling guard page, so we need to
pass into __vmalloc_node_range(). Add new parameter 'vm_flags'
to __vmalloc_node_range() function.

Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
---
 arch/arm/kernel/module.c       |  2 +-
 arch/arm64/kernel/module.c     |  4 ++--
 arch/mips/kernel/module.c      |  2 +-
 arch/parisc/kernel/module.c    |  2 +-
 arch/s390/kernel/module.c      |  2 +-
 arch/sparc/kernel/module.c     |  2 +-
 arch/unicore32/kernel/module.c |  2 +-
 arch/x86/kernel/module.c       |  2 +-
 include/linux/vmalloc.h        |  4 +++-
 mm/vmalloc.c                   | 10 ++++++----
 10 files changed, 18 insertions(+), 14 deletions(-)

diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index bea7db9..2e11961 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -41,7 +41,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
+				GFP_KERNEL, PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index 9b6f71d..67bf410 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -35,8 +35,8 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
-				    __builtin_return_address(0));
+				    GFP_KERNEL, PAGE_KERNEL_EXEC, 0,
+				    NUMA_NO_NODE, __builtin_return_address(0));
 }
 
 enum aarch64_reloc_op {
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index 2a52568..1833f51 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -47,7 +47,7 @@ static DEFINE_SPINLOCK(dbe_lock);
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULE_START, MODULE_END,
-				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
+				GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 5822e8e..3c63a82 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -219,7 +219,7 @@ void *module_alloc(unsigned long size)
 	 * init_data correctly */
 	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
 				    GFP_KERNEL | __GFP_HIGHMEM,
-				    PAGE_KERNEL_RWX, NUMA_NO_NODE,
+				    PAGE_KERNEL_RWX, 0, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 409d152..36154a2 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -50,7 +50,7 @@ void *module_alloc(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
+				    GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 #endif
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index 97655e0..192a617 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -29,7 +29,7 @@ static void *module_map(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
+				GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #else
diff --git a/arch/unicore32/kernel/module.c b/arch/unicore32/kernel/module.c
index dc41f6d..e191b34 100644
--- a/arch/unicore32/kernel/module.c
+++ b/arch/unicore32/kernel/module.c
@@ -25,7 +25,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
+				GFP_KERNEL, PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index e69f988..e830e61 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -88,7 +88,7 @@ void *module_alloc(unsigned long size)
 	return __vmalloc_node_range(size, 1,
 				    MODULES_VADDR + get_module_load_offset(),
 				    MODULES_END, GFP_KERNEL | __GFP_HIGHMEM,
-				    PAGE_KERNEL_EXEC, NUMA_NO_NODE,
+				    PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 1526fe7..7d7acb3 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -76,7 +76,9 @@ extern void *vmalloc_32_user(unsigned long size);
 extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
 extern void *__vmalloc_node_range(unsigned long size, unsigned long align,
 			unsigned long start, unsigned long end, gfp_t gfp_mask,
-			pgprot_t prot, int node, const void *caller);
+			pgprot_t prot, unsigned long vm_flags, int node,
+			const void *caller);
+
 extern void vfree(const void *addr);
 
 extern void *vmap(struct page **pages, unsigned int count,
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 2e74e99..35b25e1 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1619,6 +1619,7 @@ fail:
  *	@end:		vm area range end
  *	@gfp_mask:	flags for the page level allocator
  *	@prot:		protection mask for the allocated pages
+ *	@vm_flags:	additional vm area flags (e.g. %VM_NO_GUARD)
  *	@node:		node to use for allocation or NUMA_NO_NODE
  *	@caller:	caller's return address
  *
@@ -1628,7 +1629,8 @@ fail:
  */
 void *__vmalloc_node_range(unsigned long size, unsigned long align,
 			unsigned long start, unsigned long end, gfp_t gfp_mask,
-			pgprot_t prot, int node, const void *caller)
+			pgprot_t prot, unsigned long vm_flags, int node,
+			const void *caller)
 {
 	struct vm_struct *area;
 	void *addr;
@@ -1638,8 +1640,8 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	if (!size || (size >> PAGE_SHIFT) > totalram_pages)
 		goto fail;
 
-	area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED,
-				  start, end, node, gfp_mask, caller);
+	area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED |
+				vm_flags, start, end, node, gfp_mask, caller);
 	if (!area)
 		goto fail;
 
@@ -1688,7 +1690,7 @@ static void *__vmalloc_node(unsigned long size, unsigned long align,
 			    int node, const void *caller)
 {
 	return __vmalloc_node_range(size, align, VMALLOC_START, VMALLOC_END,
-				gfp_mask, prot, node, caller);
+				gfp_mask, prot, 0, node, caller);
 }
 
 void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot)
-- 
2.2.2




From - Thu Nov 08 21:37:13 2018
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From: Nicholas Mc Guire <der.herr@hofr.at>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: RFC arch/sh/kernel/traps_64.c - unclear if/else construct
Date: Tue, 3 Feb 2015 10:37:58 +0100
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Cc: Helge Deller <deller@gmx.de>,
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To: "James E.J. Bottomley" <jejb@parisc-linux.org>
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Hi !

 scanning for  if STATEMENT else STATEMENT  triggered here - and it does look
like it needs a fix-up or at least some comments.

<snip?
int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
{
	 int fstype;
	 ...
		  /* String could be altered by userspace after strlen_user() */
		  fsname[len - 1] = '\0';

		  printk(KERN_DEBUG "that is '%s' as (char *)\n", fsname);
		  if ( !strcmp(fsname, "hfs") ) {
			   fstype = 0;
		  } else {
			   fstype = 0;
		  }  
		     
		  kfree(fsname);

		  printk(KERN_DEBUG "returning fstype=%d\n", fstype);
		  return fstype; /* something other than default */
<snip>

 The if-else here has no effect and the printk will not convey any information
as its always fstype==0, finally the return statement comment indicates that it
should not be the default...

 Can't come up with a reasonable cleanup patch here - but this looks like it
needs a review.

thx!
hofrat
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From - Thu Nov 08 21:37:13 2018
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X-Mozilla-Keys:                                                                                 
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From: Andrey Ryabinin <a.ryabinin@samsung.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v11 16/19] mm: vmalloc: pass additional vm_flags to
 __vmalloc_node_range()
Date: Tue, 03 Feb 2015 20:43:09 +0300
Lines: 198
Approved: news@gmane.org
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Cc: Andrey Ryabinin <a.ryabinin@samsung.com>,
        Dmitry Vyukov <dvyukov@google.com>,
        Konstantin Serebryany <kcc@google.com>,
        Dmitry Chernenkov <dmitryc@google.com>,
        Andrey Konovalov <adech.fo@gmail.com>,
        Yuri Gribov <tetra2005@gmail.com>,
        Konstantin Khlebnikov <koct9i@gmail.com>,
        Sasha Levin <sasha.levin@oracle.com>,
        Christoph Lameter <cl@linux.com>,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Dave Hansen <dave.hansen@intel.com>,
        Andi Kleen <andi@firstfloor.org>, x86@kernel.org,
        linux-mm@kvack.org, Russell King <linux@arm.linux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Ralf Baechle <ralf@linux-mips.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <del
To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/46787>

For instrumenting global variables KASan will shadow memory
backing memory for modules. So on module loading we will need
to allocate memory for shadow and map it at address in shadow
that corresponds to the address allocated in module_alloc().

__vmalloc_node_range() could be used for this purpose,
except it puts a guard hole after allocated area. Guard hole
in shadow memory should be a problem because at some future
point we might need to have a shadow memory at address
occupied by guard hole. So we could fail to allocate shadow
for module_alloc().

Now we have VM_NO_GUARD flag disabling guard page, so we need to
pass into __vmalloc_node_range(). Add new parameter 'vm_flags'
to __vmalloc_node_range() function.

Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
---
 arch/arm/kernel/module.c       |  2 +-
 arch/arm64/kernel/module.c     |  4 ++--
 arch/mips/kernel/module.c      |  2 +-
 arch/parisc/kernel/module.c    |  2 +-
 arch/s390/kernel/module.c      |  2 +-
 arch/sparc/kernel/module.c     |  2 +-
 arch/unicore32/kernel/module.c |  2 +-
 arch/x86/kernel/module.c       |  2 +-
 include/linux/vmalloc.h        |  4 +++-
 mm/vmalloc.c                   | 10 ++++++----
 10 files changed, 18 insertions(+), 14 deletions(-)

diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index bea7db9..2e11961 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -41,7 +41,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
+				GFP_KERNEL, PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index 9b6f71d..67bf410 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -35,8 +35,8 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
-				    __builtin_return_address(0));
+				    GFP_KERNEL, PAGE_KERNEL_EXEC, 0,
+				    NUMA_NO_NODE, __builtin_return_address(0));
 }
 
 enum aarch64_reloc_op {
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index 2a52568..1833f51 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -47,7 +47,7 @@ static DEFINE_SPINLOCK(dbe_lock);
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULE_START, MODULE_END,
-				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
+				GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 5822e8e..3c63a82 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -219,7 +219,7 @@ void *module_alloc(unsigned long size)
 	 * init_data correctly */
 	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
 				    GFP_KERNEL | __GFP_HIGHMEM,
-				    PAGE_KERNEL_RWX, NUMA_NO_NODE,
+				    PAGE_KERNEL_RWX, 0, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 409d152..36154a2 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -50,7 +50,7 @@ void *module_alloc(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
+				    GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 #endif
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index 97655e0..192a617 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -29,7 +29,7 @@ static void *module_map(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
+				GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #else
diff --git a/arch/unicore32/kernel/module.c b/arch/unicore32/kernel/module.c
index dc41f6d..e191b34 100644
--- a/arch/unicore32/kernel/module.c
+++ b/arch/unicore32/kernel/module.c
@@ -25,7 +25,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
+				GFP_KERNEL, PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index e69f988..e830e61 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -88,7 +88,7 @@ void *module_alloc(unsigned long size)
 	return __vmalloc_node_range(size, 1,
 				    MODULES_VADDR + get_module_load_offset(),
 				    MODULES_END, GFP_KERNEL | __GFP_HIGHMEM,
-				    PAGE_KERNEL_EXEC, NUMA_NO_NODE,
+				    PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 1526fe7..7d7acb3 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -76,7 +76,9 @@ extern void *vmalloc_32_user(unsigned long size);
 extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
 extern void *__vmalloc_node_range(unsigned long size, unsigned long align,
 			unsigned long start, unsigned long end, gfp_t gfp_mask,
-			pgprot_t prot, int node, const void *caller);
+			pgprot_t prot, unsigned long vm_flags, int node,
+			const void *caller);
+
 extern void vfree(const void *addr);
 
 extern void *vmap(struct page **pages, unsigned int count,
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 2e74e99..35b25e1 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1619,6 +1619,7 @@ fail:
  *	@end:		vm area range end
  *	@gfp_mask:	flags for the page level allocator
  *	@prot:		protection mask for the allocated pages
+ *	@vm_flags:	additional vm area flags (e.g. %VM_NO_GUARD)
  *	@node:		node to use for allocation or NUMA_NO_NODE
  *	@caller:	caller's return address
  *
@@ -1628,7 +1629,8 @@ fail:
  */
 void *__vmalloc_node_range(unsigned long size, unsigned long align,
 			unsigned long start, unsigned long end, gfp_t gfp_mask,
-			pgprot_t prot, int node, const void *caller)
+			pgprot_t prot, unsigned long vm_flags, int node,
+			const void *caller)
 {
 	struct vm_struct *area;
 	void *addr;
@@ -1638,8 +1640,8 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	if (!size || (size >> PAGE_SHIFT) > totalram_pages)
 		goto fail;
 
-	area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED,
-				  start, end, node, gfp_mask, caller);
+	area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED |
+				vm_flags, start, end, node, gfp_mask, caller);
 	if (!area)
 		goto fail;
 
@@ -1688,7 +1690,7 @@ static void *__vmalloc_node(unsigned long size, unsigned long align,
 			    int node, const void *caller)
 {
 	return __vmalloc_node_range(size, align, VMALLOC_START, VMALLOC_END,
-				gfp_mask, prot, node, caller);
+				gfp_mask, prot, 0, node, caller);
 }
 
 void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot)
-- 
2.2.2




From - Thu Nov 08 21:37:13 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Add error checks when building up signal trampoline
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Add checks if the userspace trampoline code was correctly generated by the
signal trampoline generation code. In addition only flush caches as needed and
fix the old flushing code which didn't flushed all generated instructions.
                
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 012d4fa..50cda7e6 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -476,6 +476,9 @@ insert_restart_trampoline(struct pt_regs *regs)
 	case -ERESTART_RESTARTBLOCK: {
 		/* Restart the system call - no handlers present */
 		unsigned int *usp = (unsigned int *)regs->gr[30];
+		unsigned long start = (unsigned long) &usp[2];
+		unsigned long end  = (unsigned long) &usp[5];
+		long err = 0;
 
 		/* Setup a trampoline to restart the syscall
 		 * with __NR_restart_syscall
@@ -487,23 +490,21 @@ insert_restart_trampoline(struct pt_regs *regs)
 		 * 16: ldi __NR_restart_syscall, %r20
 		 */
 #ifdef CONFIG_64BIT
-		put_user(regs->gr[31] >> 32, &usp[0]);
-		put_user(regs->gr[31] & 0xffffffff, &usp[1]);
-		put_user(0x0fc010df, &usp[2]);
+		err |= put_user(regs->gr[31] >> 32, &usp[0]);
+		err |= put_user(regs->gr[31] & 0xffffffff, &usp[1]);
+		err |= put_user(0x0fc010df, &usp[2]);
 #else
-		put_user(regs->gr[31], &usp[0]);
-		put_user(0x0fc0109f, &usp[2]);
+		err |= put_user(regs->gr[31], &usp[0]);
+		err |= put_user(0x0fc0109f, &usp[2]);
 #endif
-		put_user(0xe0008200, &usp[3]);
-		put_user(0x34140000, &usp[4]);
+		err |= put_user(0xe0008200, &usp[3]);
+		err |= put_user(0x34140000, &usp[4]);
 
-		/* Stack is 64-byte aligned, and we only need
-		 * to flush 1 cache line.
-		 * Flushing one cacheline is cheap.
-		 * "sync" on bigger (> 4 way) boxes is not.
-		 */
-		flush_user_dcache_range(regs->gr[30], regs->gr[30] + 4);
-		flush_user_icache_range(regs->gr[30], regs->gr[30] + 4);
+		WARN_ON(err);
+
+		/* flush data/instruction cache for new insns */
+		flush_user_dcache_range(start, end);
+		flush_user_icache_range(start, end);
 
 		regs->gr[31] = regs->gr[30] + 8;
 		return;
--
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From - Thu Nov 08 21:37:14 2018
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Subject: [PATCH] MODULE_DEVICE_TABLE: fix gscps2
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Xref: news.gmane.org gmane.linux.ports.parisc:25560 gmane.linux.kernel.input:41065 gmane.linux.kernel:1882161
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The patch "module: fix types of device tables aliases" newly requires
that invocations of

MODULE_DEVICE_TABLE(type, name);

come *after* the definition of `name'.  That is reasonable, but gscps2
wasn't doing this.  Fix it.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
One more fix for your collection...

parisc/allmodconfig
http://kisskb.ellerman.id.au/kisskb/buildresult/12358386/
---
 drivers/input/serio/gscps2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
index 8d9ba0c3827c5b2a..94ab494a6ade8d49 100644
--- a/drivers/input/serio/gscps2.c
+++ b/drivers/input/serio/gscps2.c
@@ -40,7 +40,6 @@
 MODULE_AUTHOR("Laurent Canet <canetl@esiee.fr>, Thibaut Varene <varenet@parisc-linux.org>, Helge Deller <deller@gmx.de>");
 MODULE_DESCRIPTION("HP GSC PS2 port driver");
 MODULE_LICENSE("GPL");
-MODULE_DEVICE_TABLE(parisc, gscps2_device_tbl);
 
 #define PFX "gscps2.c: "
 
@@ -439,6 +438,7 @@ static struct parisc_device_id gscps2_device_tbl[] = {
 #endif
 	{ 0, }	/* 0 terminated list */
 };
+MODULE_DEVICE_TABLE(parisc, gscps2_device_tbl);
 
 static struct parisc_driver parisc_ps2_driver = {
 	.name		= "gsc_ps2",
-- 
1.9.1

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From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.input,gmane.linux.kernel
Subject: Re: [PATCH] MODULE_DEVICE_TABLE: fix gscps2
Date: Wed, 4 Feb 2015 11:00:18 -0800
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On Wed, Feb 04, 2015 at 04:15:35PM +0100, Geert Uytterhoeven wrote:
> The patch "module: fix types of device tables aliases" newly requires
> that invocations of
> 
> MODULE_DEVICE_TABLE(type, name);
> 
> come *after* the definition of `name'.  That is reasonable, but gscps2
> wasn't doing this.  Fix it.
> 
> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

Applied, thank you.

> ---
> One more fix for your collection...
> 
> parisc/allmodconfig
> http://kisskb.ellerman.id.au/kisskb/buildresult/12358386/
> ---
>  drivers/input/serio/gscps2.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
> index 8d9ba0c3827c5b2a..94ab494a6ade8d49 100644
> --- a/drivers/input/serio/gscps2.c
> +++ b/drivers/input/serio/gscps2.c
> @@ -40,7 +40,6 @@
>  MODULE_AUTHOR("Laurent Canet <canetl@esiee.fr>, Thibaut Varene <varenet@parisc-linux.org>, Helge Deller <deller@gmx.de>");
>  MODULE_DESCRIPTION("HP GSC PS2 port driver");
>  MODULE_LICENSE("GPL");
> -MODULE_DEVICE_TABLE(parisc, gscps2_device_tbl);
>  
>  #define PFX "gscps2.c: "
>  
> @@ -439,6 +438,7 @@ static struct parisc_device_id gscps2_device_tbl[] = {
>  #endif
>  	{ 0, }	/* 0 terminated list */
>  };
> +MODULE_DEVICE_TABLE(parisc, gscps2_device_tbl);
>  
>  static struct parisc_driver parisc_ps2_driver = {
>  	.name		= "gsc_ps2",
> -- 
> 1.9.1
> 

-- 
Dmitry
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From - Thu Nov 08 21:37:14 2018
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Hi.

Looks like PA-RISC 1.1 added bi-endian support. 
What about PA-RISC Linux? I know it's big endian. 
But does it possible to build little endian kernel? If so, how?
Is migration to little endian planned? It should be reasonable 
as it will bring more  compatibility with other Linux world.

Thanks.

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From - Thu Nov 08 21:37:14 2018
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On 2015-02-10 5:31 AM, Held Bier wrote:
> Hi.
>
> Looks like PA-RISC 1.1 added bi-endian support.
> What about PA-RISC Linux? I know it's big endian.
> But does it possible to build little endian kernel? If so, how?
> Is migration to little endian planned? It should be reasonable
> as it will bring more  compatibility with other Linux world.
Unlikely.  According to the PA 2.0 arch, implementation of this feature 
was optional.

Further the PDC/IODC firmware and software tool chains need little 
endian support.  This
is a massive amount of work.  So, unless one one decided to create a 
64-bit embedded
PA-RISC processor for mass deployment, it wouldn't be worth the effort.

Dave

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From - Thu Nov 08 21:37:14 2018
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On Tue, 2015-02-10 at 10:30 -0500, John David Anglin wrote:
> On 2015-02-10 5:31 AM, Held Bier wrote:
> > Hi.
> >
> > Looks like PA-RISC 1.1 added bi-endian support.
> > What about PA-RISC Linux? I know it's big endian.
> > But does it possible to build little endian kernel? If so, how?
> > Is migration to little endian planned? It should be reasonable
> > as it will bring more  compatibility with other Linux world.

What compatibility?  x86 is LE, Arm is Schizophrenic, PPC, Sparc and PA
are BE.  We're required to support the bus standards anyway, so the SCSI
bus is BE and the PCI bus LE by spec.  There's no such thing as a
"compatible" endianness.

> Unlikely.  According to the PA 2.0 arch, implementation of this feature 
> was optional.

I think it was originally designed for some type of LASI system.
There's an endian flip in some of the LASI devices as well.  I think the
original problem was LASI was designed big endian, but the chosen SCSI
processor was designed for LE at that time, so they tried to flip the
processor.  I suspect the reason the feature became optional is that it
caused more problems than it solved.

> Further the PDC/IODC firmware and software tool chains need little 
> endian support.  This
> is a massive amount of work.  So, unless one one decided to create a 
> 64-bit embedded
> PA-RISC processor for mass deployment, it wouldn't be worth the effort.

It's a bit pointless too.  Coping with endianness isn't really an
unsolved OS problem, so it would cost a huge amount, open a large can of
worms and buy us nothing.

James


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> James Bottomley <James.Bottomley@HansenPartnership.com>:
>=20
> On Tue, 2015-02-10 at 10:30 -0500, John David Anglin wrote:
>> On 2015-02-10 5:31 AM, Held Bier wrote:
>>> Hi.
>>>=20
>>> Looks like PA-RISC 1.1 added bi-endian support.
>>> What about PA-RISC Linux? I know it's big endian.
>>> But does it possible to build little endian kernel? If so, how?
>>> Is migration to little endian planned? It should be reasonable
>>> as it will bring more  compatibility with other Linux world.
>=20
> What compatibility?  x86 is LE, Arm is Schizophrenic, PPC, Sparc and =
PA
> are BE.  We're required to support the bus standards anyway, so the S=
CSI
> bus is BE and the PCI bus LE by spec.  There's no such thing as a
> "compatible" endianness.

Some software authors still assume that we're living in x86 only world,=
 or just don't care. This leads to issues when one wish to run such sof=
tware on a BE Linux.

POWER is moving to LE:
https://www.ibm.com/developerworks/community/blogs/fe313521-2e95-46f2-8=
17d-44a4f27eba32/entry/just_the_faqs_about_little_endian
"Although Power already has Linux distributions and supporting applicat=
ions that run in big endian mode, the Linux application ecosystem for x=
86 platforms is much larger and Linux on x86 uses little endian mode.  =
Numerous clients, software partners, and IBM=E2=80=99s own software dev=
elopers have told us that porting their software to Power becomes simpl=
er if the Linux environment on Power supports little endian mode, more =
closely matching the environment provided by Linux on x86.  This new le=
vel of support will lower the barrier to entry for porting Linux on x86=
 software to Linux on Power."

=46or PPC the patch was made: http://lwn.net/Articles/408845/

>=20
>> Unlikely.  According to the PA 2.0 arch, implementation of this feat=
ure=20
>> was optional.
>=20
> I think it was originally designed for some type of LASI system.
> There's an endian flip in some of the LASI devices as well.  I think =
the
> original problem was LASI was designed big endian, but the chosen SCS=
I
> processor was designed for LE at that time, so they tried to flip the
> processor.  I suspect the reason the feature became optional is that =
it
> caused more problems than it solved.
>=20
>> Further the PDC/IODC firmware and software tool chains need little=20
>> endian support.  This
>> is a massive amount of work.  So, unless one one decided to create a=
=20
>> 64-bit embedded
>> PA-RISC processor for mass deployment, it wouldn't be worth the effo=
rt.
>=20
> It's a bit pointless too.  Coping with endianness isn't really an
> unsolved OS problem, so it would cost a huge amount, open a large can=
 of
> worms and buy us nothing.
>=20
> James
>=20
>=20

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Thanks much for the answers, guys!

> Ilia Mirkin <imirkin@alum.mit.edu>:
> 
> With nouveau, you can generally get older cards to work

Took a bunch of gf2mx and fx5500 cards I had access to. With Noveau they fail with "GPU lockup". The kernel version is 3.16.7.
The issue chain is nouveau_fbcon_imageblit(): nouveau_fbcon_gpu_lockup() is called -> nv04_fbcon_imageblit(): while (dsize) { ... ret = RING_SPACE(chan, iter_len + 1); if (ret) return ret; /* -EBUSY at some iteration */ ... } -> nouveau_dma_wait() -> while (chan->dma.free < size) { get = READ_GET(chan, &prev_get, &cnt); if (unlikely(get == -EBUSY)) return -EBUSY; /* HERE */ ... }

> Dave Airlie <airlied@gmail.com>:
> 
> On 12 February 2015 at 00:44, Alex Deucher <alexdeucher@gmail.com> wrote:
>> On Wed, Feb 11, 2015 at 3:53 AM,  <lausgans@gmail.com> wrote:
>>> Hello.
>>> 
>>> I'm looking for a PCI or AGP video card that would work on a Linux port for a big endian architecture (HP PA-RISC). Unfortunately the stock video options (ATI FireGL X1 and X3) give an incredibly slow unaccelerated 2D due to failure to kickstart the command processor (radeon open source driver). Neither folks from linux-parisc@ nor from dri-devel@ camps know how to fix this.
>>> 

>> 
>> The X1 and X3 are really old asics and the risc specific versions
>> tended to have special firmware for that platform that the open driver
>> does not handle properly.  You might have better luck using a more
>> modern GPU (e.g., an R5xx or newer based asic) with an x86 vbios.

If the above is not some Nouveau miss, then it looks like it's some general architecture / chipset related code issue regarding ring buffer. I wonder how network card driver works then. Opinions?
There is a chipset specific drivers porting note: https://kernel.org/doc/ols/2002/ols2002-pages-183-190.pdf Though some parts of it are about IA64.
CC to linux-parisc@

> If memory serves PA-RISC had some restrictions on PCI BAR windows, it
> wasn't just endianness problems.

The only thing I've heard regarding this was:
"The FireGL X1 / 256 AGP pro card used in the C8000 is a standard ATI part, but has a special video BIOS that reduces the PCI BAR space used by the card. The C8000 I/O space totals 256Mb, so using it all for the graphics wouldn't allow for any boot devices, etc."
But then it's all on the vendor behalf, as the driver could read space sizes via PCI info functions.

> 
> Dave.

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On Sun, 2015-02-15 at 09:49 +0300, lausgans@gmail.com wrote:
> > James Bottomley <James.Bottomley@HansenPartnership.com>:
> >=20
> > On Tue, 2015-02-10 at 10:30 -0500, John David Anglin wrote:
> >> On 2015-02-10 5:31 AM, Held Bier wrote:
> >>> Hi.
> >>>=20
> >>> Looks like PA-RISC 1.1 added bi-endian support.
> >>> What about PA-RISC Linux? I know it's big endian.
> >>> But does it possible to build little endian kernel? If so, how?
> >>> Is migration to little endian planned? It should be reasonable
> >>> as it will bring more  compatibility with other Linux world.
> >=20
> > What compatibility?  x86 is LE, Arm is Schizophrenic, PPC, Sparc an=
d PA
> > are BE.  We're required to support the bus standards anyway, so the=
 SCSI
> > bus is BE and the PCI bus LE by spec.  There's no such thing as a
> > "compatible" endianness.
>=20
> Some software authors still assume that we're living in x86 only
> world, or just don't care. This leads to issues when one wish to run
> such software on a BE Linux.
>=20
> POWER is moving to LE:
> https://www.ibm.com/developerworks/community/blogs/fe313521-2e95-46f2=
-817d-44a4f27eba32/entry/just_the_faqs_about_little_endian
> "Although Power already has Linux distributions and supporting
> applications that run in big endian mode, the Linux application
> ecosystem for x86 platforms is much larger and Linux on x86 uses
> little endian mode.  Numerous clients, software partners, and IBM=E2=80=
=99s
> own software developers have told us that porting their software to
> Power becomes simpler if the Linux environment on Power supports
> little endian mode, more closely matching the environment provided by
> Linux on x86.  This new level of support will lower the barrier to
> entry for porting Linux on x86 software to Linux on Power."
>=20
> For PPC the patch was made: http://lwn.net/Articles/408845/

That's not a correct inference from the facts.  Power is interested in
playing in the embedded space and some of the graphics SoCs available
there are LE only, so they're interested in enabling a LE version to ru=
n
in that space ... it won't affect the rest of the PPC boxes.

All our boxes either have no graphics or a HP special big endian card.
The only exception is the C8000 which has an ATI with special firmware
(also designed for BE).

The thing you don't seem to understand is that the endianness is
actually fixed by the firmware of the shipping systems.  You're tied to
whatever the firmware starts you in because swapping after the firmware
init is unbelievably painful, especially when you need to call the
firmware to perform OS tasks.  We don't have any new systems planned, s=
o
all the firmware is now fixed for PA and the endianness with it.

James




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2015-02-15 19:50 GMT+00:00 James Bottomley
<James.Bottomley@hansenpartnership.com>:
> On Sun, 2015-02-15 at 09:49 +0300, lausgans@gmail.com wrote:
>> > James Bottomley <James.Bottomley@HansenPartnership.com>:
>> >
>> > On Tue, 2015-02-10 at 10:30 -0500, John David Anglin wrote:
>> >> On 2015-02-10 5:31 AM, Held Bier wrote:
>> >>> Hi.
>> >>>
>> >>> Looks like PA-RISC 1.1 added bi-endian support.
>> >>> What about PA-RISC Linux? I know it's big endian.
>> >>> But does it possible to build little endian kernel? If so, how?
>> >>> Is migration to little endian planned? It should be reasonable
>> >>> as it will bring more  compatibility with other Linux world.
>> >
>> > What compatibility?  x86 is LE, Arm is Schizophrenic, PPC, Sparc a=
nd PA
>> > are BE.  We're required to support the bus standards anyway, so th=
e SCSI
>> > bus is BE and the PCI bus LE by spec.  There's no such thing as a
>> > "compatible" endianness.
>>
>> Some software authors still assume that we're living in x86 only
>> world, or just don't care. This leads to issues when one wish to run
>> such software on a BE Linux.
>>
>> POWER is moving to LE:
>> https://www.ibm.com/developerworks/community/blogs/fe313521-2e95-46f=
2-817d-44a4f27eba32/entry/just_the_faqs_about_little_endian
>> "Although Power already has Linux distributions and supporting
>> applications that run in big endian mode, the Linux application
>> ecosystem for x86 platforms is much larger and Linux on x86 uses
>> little endian mode.  Numerous clients, software partners, and IBM=E2=
=80=99s
>> own software developers have told us that porting their software to
>> Power becomes simpler if the Linux environment on Power supports
>> little endian mode, more closely matching the environment provided b=
y
>> Linux on x86.  This new level of support will lower the barrier to
>> entry for porting Linux on x86 software to Linux on Power."
>>
>> For PPC the patch was made: http://lwn.net/Articles/408845/
>
> That's not a correct inference from the facts.  Power is interested i=
n
> playing in the embedded space and some of the graphics SoCs available
> there are LE only, so they're interested in enabling a LE version to =
run
> in that space ... it won't affect the rest of the PPC boxes.
>
> All our boxes either have no graphics or a HP special big endian card=
=2E
> The only exception is the C8000 which has an ATI with special firmwar=
e
> (also designed for BE).
>
> The thing you don't seem to understand is that the endianness is
> actually fixed by the firmware of the shipping systems.  You're tied =
to
> whatever the firmware starts you in because swapping after the firmwa=
re
> init is unbelievably painful, especially when you need to call the
> firmware to perform OS tasks.  We don't have any new systems planned,=
 so
> all the firmware is now fixed for PA and the endianness with it.
>
> James

James,

This was a general question. In case if you're connecting dots with my
later topic "Video option for a big endian machine?" - I should rather
name it "... for a non-x86 arch", as there may be more platform
specific issues, than just byte order. By the links i've provided
there are thoughts that some graphics driver / stack (as well as many
other non-related programs) may still be not fixed, e.g. they may
don't use the host byte order at the CPU side operations, and so don't
work. Of course the proper solution is to fix the actual code, but
having a LE OS option for that hardware platform should be also an
ultimate so-so solution.
Sorry for my question then, that was just a curiosity, I'm in no event
asking anyone to sacrifice their forces and time just to bring LE to
PA Linux.

> The only exception is the C8000 which has an ATI with special firmwar=
e
> (also designed for BE).

This doesn't seem to be true:
- Once I've put ATI designed for (and working in, under HP-UX) C8000
into IA64 machine with LE Linux and it worked fine;
- If HP asked ATI to produce a custom firmware, what's the purpose of
putting x86 emulator into PDC? Actually both IA64 and PA-RISC ZX1
machines can POST most of relatively modern cards with unmodified
VBIOS.

To add, Nvidia cards fail similarly to ATI with ring buffer issue (GPU
locks up). If it's not the Nouveau breakage, than some PA Linux code
(possibly DMA related) does something wrong.

> The thing you don't seem to understand is that the endianness is
> actually fixed by the firmware of the shipping systems.  You're tied =
to
> whatever the firmware starts you in because swapping after the firmwa=
re
> init is unbelievably painful, especially when you need to call the
> firmware to perform OS tasks.

I'm sure you're right, i'm not expert there. I'm wondering why IA64
(or mentioned POWER) doesn't suffer from such obstacles?
https://forums.gentoo.org/viewtopic-p-2432985.html?sid=3D890fd4a4113673=
0c64d573192c9e3b57#2432985
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On Sun, Feb 15, 2015 at 1:52 AM,  <lausgans@gmail.com> wrote:
> Thanks much for the answers, guys!
>
>> Ilia Mirkin <imirkin@alum.mit.edu>:
>>
>> With nouveau, you can generally get older cards to work
>
> Took a bunch of gf2mx and fx5500 cards I had access to. With Noveau they fail with "GPU lockup". The kernel version is 3.16.7.
> The issue chain is nouveau_fbcon_imageblit(): nouveau_fbcon_gpu_lockup() is called -> nv04_fbcon_imageblit(): while (dsize) { ... ret = RING_SPACE(chan, iter_len + 1); if (ret) return ret; /* -EBUSY at some iteration */ ... } -> nouveau_dma_wait() -> while (chan->dma.free < size) { get = READ_GET(chan, &prev_get, &cnt); if (unlikely(get == -EBUSY)) return -EBUSY; /* HERE */ ... }
>
>> Dave Airlie <airlied@gmail.com>:
>>
>> On 12 February 2015 at 00:44, Alex Deucher <alexdeucher@gmail.com> wrote:
>>> On Wed, Feb 11, 2015 at 3:53 AM,  <lausgans@gmail.com> wrote:
>>>> Hello.
>>>>
>>>> I'm looking for a PCI or AGP video card that would work on a Linux port for a big endian architecture (HP PA-RISC). Unfortunately the stock video options (ATI FireGL X1 and X3) give an incredibly slow unaccelerated 2D due to failure to kickstart the command processor (radeon open source driver). Neither folks from linux-parisc@ nor from dri-devel@ camps know how to fix this.
>>>>
>
>>>
>>> The X1 and X3 are really old asics and the risc specific versions
>>> tended to have special firmware for that platform that the open driver
>>> does not handle properly.  You might have better luck using a more
>>> modern GPU (e.g., an R5xx or newer based asic) with an x86 vbios.
>
> If the above is not some Nouveau miss, then it looks like it's some general architecture / chipset related code issue regarding ring buffer. I wonder how network card driver works then. Opinions?

NICs are generally much simpler and don't have large BAR windows for
vram access.  The driver for the on board NIC (if there is one) may
also have special handling for those specific boards.

Also note that a lot of information is stored in the vbios on the card
(number and type of connectors, encoder to connector routing, i2c bus
information, asic init sequences, clocks and voltages, etc.).  For
boards with special vbios images (like those or sun or mac boards) the
driver falls back to reasonable defaults which may not be always be a
good fit for the board.  Also, the driver only knows how to natively
post boards with x86 vbioses.  For everything else we really on the
vendor firmware to have already initialized and posted the card.

Alex

> There is a chipset specific drivers porting note: https://kernel.org/doc/ols/2002/ols2002-pages-183-190.pdf Though some parts of it are about IA64.
> CC to linux-parisc@
>
>> If memory serves PA-RISC had some restrictions on PCI BAR windows, it
>> wasn't just endianness problems.
>
> The only thing I've heard regarding this was:
> "The FireGL X1 / 256 AGP pro card used in the C8000 is a standard ATI part, but has a special video BIOS that reduces the PCI BAR space used by the card. The C8000 I/O space totals 256Mb, so using it all for the graphics wouldn't allow for any boot devices, etc."
> But then it's all on the vendor behalf, as the driver could read space sizes via PCI info functions.
>
>>
>> Dave.
>
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Subject: [PATCH] parisc: hpux - Drop support for HP-UX binaries
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This patch series drops the support for 32bit HP-UX binaries.

The HP-UX compat layer has always been incomplete and it's unlikely that
someone will ever implement it.

Furthermore those two commits which enhance the compatibility of Linux on parisc
to other architectures:
 f5a408d: parisc: Make EWOULDBLOCK be equal to EAGAIN on parisc
 1f25df2: parisc: Reduce SIGRTMIN from 37 to 32 to behave like other Linux architectures
basically make it impossible to implement the HP-UX support correctly.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 1554a6f..8014727 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -291,10 +291,6 @@ config SYSVIPC_COMPAT
 config AUDIT_ARCH
 	def_bool y
 
-config HPUX
-	bool "Support for HP-UX binaries"
-	depends on !64BIT

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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5db8882..91fbb6e 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -84,7 +84,6 @@ head-y			:= arch/parisc/kernel/head.o
 KBUILD_CFLAGS	+= $(cflags-y)
 
 kernel-y			:= mm/ kernel/ math-emu/
-kernel-$(CONFIG_HPUX)		+= hpux/
 
 core-y	+= $(addprefix arch/parisc/, $(kernel-y))
 libs-y	+= arch/parisc/lib/ $(LIBGCC)
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: hpux - Delete files in hpux subdirectory
Date: Mon, 16 Feb 2015 22:19:06 +0100
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/hpux/Makefile b/arch/parisc/hpux/Makefile
deleted file mode 100644
index 1048fb6..0000000
--- a/arch/parisc/hpux/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for HPUX emulation
-#
-
-obj-y := entry_hpux.o gate.o wrappers.o fs.o ioctl.o sys_hpux.o
diff --git a/arch/parisc/hpux/entry_hpux.S b/arch/parisc/hpux/entry_hpux.S
deleted file mode 100644
index d15a413..0000000
--- a/arch/parisc/hpux/entry_hpux.S
+++ /dev/null
@@ -1,546 +0,0 @@
-/*    syscall table for HPUX specific syscalls
- *
- *    Linux/PA-RISC Project (http://www.parisc-linux.org/)
- *    Copyright (C) 1999 Matthew Wilcox <willy at debian . org>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include <asm/unistd.h>
-#include <asm/assembly.h>
-#include <linux/sys.h>
-#include <linux/linkage.h>
-
-#define ENTRY_NAME(_name_) ASM_ULONG_INSN _name_
-
-	.section .rodata,"a"
-	.import hpux_unimplemented_wrapper
-ENTRY(hpux_call_table)
-	ENTRY_NAME(sys_ni_syscall)	/* 0 */
-	ENTRY_NAME(sys_exit)
-	ENTRY_NAME(hpux_fork_wrapper)
-	ENTRY_NAME(sys_read)
-	ENTRY_NAME(sys_write)
-	ENTRY_NAME(sys_open)	/* 5 */
-	ENTRY_NAME(sys_close)
-	ENTRY_NAME(hpux_wait)
-	ENTRY_NAME(sys_creat)
-	ENTRY_NAME(sys_link)
-	ENTRY_NAME(sys_unlink)	/* 10 */
-	ENTRY_NAME(hpux_execv_wrapper)
-	ENTRY_NAME(sys_chdir)
-	ENTRY_NAME(sys_time)
-	ENTRY_NAME(sys_mknod)
-	ENTRY_NAME(sys_chmod)	/* 15 */
-	ENTRY_NAME(sys_chown)
-	ENTRY_NAME(hpux_brk)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_lseek)
-	ENTRY_NAME(sys_getpid)	/* 20 */
-	ENTRY_NAME(hpux_mount)
-	ENTRY_NAME(sys_oldumount)
-	ENTRY_NAME(sys_setuid)
-	ENTRY_NAME(sys_getuid)
-	ENTRY_NAME(sys_stime)	/* 25 */
-	ENTRY_NAME(hpux_ptrace)
-	ENTRY_NAME(sys_alarm)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_pause)
-	ENTRY_NAME(sys_utime)	/* 30 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_access)
-	ENTRY_NAME(hpux_nice)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 35 */
-	ENTRY_NAME(sys_sync)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_newstat)
-	ENTRY_NAME(hpux_setpgrp3)
-	ENTRY_NAME(sys_newlstat)	/* 40 */
-	ENTRY_NAME(sys_dup)
-	ENTRY_NAME(hpux_pipe_wrapper)
-	ENTRY_NAME(sys_times)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 45 */
-	ENTRY_NAME(sys_setgid)
-	ENTRY_NAME(sys_getgid)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 50 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_ioctl)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 55 */
-	ENTRY_NAME(sys_symlink)
-	ENTRY_NAME(hpux_utssys)
-	ENTRY_NAME(sys_readlink)
-	ENTRY_NAME(hpux_execve_wrapper)
-	ENTRY_NAME(sys_umask)	/* 60 */
-	ENTRY_NAME(sys_chroot)
-	ENTRY_NAME(sys_fcntl)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 65 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_sbrk)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 70 */
-	ENTRY_NAME(sys_mmap)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 75 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 80 */
-	ENTRY_NAME(sys_getpgid)
-	ENTRY_NAME(sys_setpgid)
-	ENTRY_NAME(sys_setitimer)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 85 */
-	ENTRY_NAME(sys_getitimer)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_dup2)		/* 90 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_newfstat)
-	ENTRY_NAME(sys_select)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 95 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 100 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 105 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 110 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 115 */
-	ENTRY_NAME(sys_gettimeofday)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 120 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_fchown)
-	ENTRY_NAME(sys_fchmod)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 125 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_rename)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 130 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_sysconf)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 135 */
-	ENTRY_NAME(sys_mkdir)
-	ENTRY_NAME(sys_rmdir)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 140 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_getrlimit)
-	ENTRY_NAME(sys_setrlimit)      /* 145 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 150 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_lockf)      /* 155 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 160 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 165 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 170 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 175 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 180 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_sigprocmask)      /* 185 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 190 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_getdomainname)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 195 */
-	ENTRY_NAME(hpux_statfs)
-	ENTRY_NAME(hpux_fstatfs)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_waitpid)	/* 200 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 205 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 210 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 215 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 220 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 225 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 230 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 235 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 240 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 245 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 250 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 255 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 260 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 265 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 270 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_fchdir)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_accept)		/* 275 */
-	ENTRY_NAME(sys_bind)
-	ENTRY_NAME(sys_connect)
-	ENTRY_NAME(sys_getpeername)
-	ENTRY_NAME(sys_getsockname)
-	ENTRY_NAME(sys_getsockopt)	/* 280 */
-	ENTRY_NAME(sys_listen)
-	ENTRY_NAME(sys_recv)
-	ENTRY_NAME(sys_recvfrom)
-	ENTRY_NAME(sys_recvmsg)
-	ENTRY_NAME(sys_send)		/* 285 */
-	ENTRY_NAME(sys_sendmsg)
-	ENTRY_NAME(sys_sendto)
-	ENTRY_NAME(sys_setsockopt)
-	ENTRY_NAME(sys_shutdown)
-	ENTRY_NAME(sys_socket)		/* 290 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 295 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 300 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 305 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 310 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 315 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 320 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 325 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 330 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_lchown)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_sysfs)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 335 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 340 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 345 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 350 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(sys_nanosleep)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 355 */
-	ENTRY_NAME(hpux_getdents)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 360 */
-	ENTRY_NAME(hpux_fstat64)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 365 */
-	ENTRY_NAME(hpux_lstat64)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_stat64)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 370 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 375 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 380 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_setpgrp)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 385 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 390 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 395 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 400 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 405 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 410 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 415 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 420 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 425 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 430 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 435 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 440 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 445 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 450 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 455 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 460 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 465 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 470 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 475 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 480 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 485 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 490 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 495 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 500 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 505 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 510 */
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-	ENTRY_NAME(hpux_unimplemented_wrapper)
-END(hpux_call_table)
-.end
-
diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
deleted file mode 100644
index 97a7bf8..0000000
--- a/arch/parisc/hpux/fs.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
- *    Implements HPUX syscalls.
- *
- *    Copyright (C) 1999 Matthew Wilcox <willy with parisc-linux.org>
- *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
- *    Copyright (C) 2000 John Marvin <jsm with parisc-linux.org>
- *    Copyright (C) 2000 Philipp Rumpf
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <linux/file.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <asm/errno.h>
-#include <asm/uaccess.h>
-
-int hpux_execve(struct pt_regs *regs)
-{
-	return  do_execve(getname((const char __user *) regs->gr[26]),
-			  (const char __user *const __user *) regs->gr[25],
-			  (const char __user *const __user *) regs->gr[24]);
-}
-
-struct hpux_dirent {
-	loff_t	d_off;
-	ino_t	d_ino;
-	short	d_reclen;
-	short	d_namlen;
-	char	d_name[1];
-};
-
-struct getdents_callback {
-	struct dir_context ctx;
-	struct hpux_dirent __user *current_dir;
-	struct hpux_dirent __user *previous;
-	int count;
-	int error;
-};
-
-#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
-
-static int filldir(struct dir_context *ctx, const char *name, int namlen,
-		   loff_t offset, u64 ino, unsigned d_type)
-{
-	struct hpux_dirent __user * dirent;
-	struct getdents_callback *buf =
-		container_of(ctx, struct getdents_callback, ctx);
-	ino_t d_ino;
-	int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 1, sizeof(long));
-
-	buf->error = -EINVAL;	/* only used if we fail.. */
-	if (reclen > buf->count)
-		return -EINVAL;
-	d_ino = ino;
-	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
-		buf->error = -EOVERFLOW;
-		return -EOVERFLOW;
-	}
-	dirent = buf->previous;
-	if (dirent)
-		if (put_user(offset, &dirent->d_off))
-			goto Efault;
-	dirent = buf->current_dir;
-	if (put_user(d_ino, &dirent->d_ino) ||
-	    put_user(reclen, &dirent->d_reclen) ||
-	    put_user(namlen, &dirent->d_namlen) ||
-	    copy_to_user(dirent->d_name, name, namlen) ||
-	    put_user(0, dirent->d_name + namlen))
-		goto Efault;
-	buf->previous = dirent;
-	buf->current_dir = (void __user *)dirent + reclen;
-	buf->count -= reclen;
-	return 0;
-Efault:
-	buf->error = -EFAULT;
-	return -EFAULT;
-}
-
-#undef NAME_OFFSET
-
-int hpux_getdents(unsigned int fd, struct hpux_dirent __user *dirent, unsigned int count)
-{
-	struct fd arg;
-	struct hpux_dirent __user * lastdirent;
-	struct getdents_callback buf = {
-		.ctx.actor = filldir,
-		.current_dir = dirent,
-		.count = count
-	};
-	int error;
-
-	arg = fdget(fd);
-	if (!arg.file)
-		return -EBADF;
-
-	error = iterate_dir(arg.file, &buf.ctx);
-	if (error >= 0)
-		error = buf.error;
-	lastdirent = buf.previous;
-	if (lastdirent) {
-		if (put_user(buf.ctx.pos, &lastdirent->d_off))
-			error = -EFAULT;
-		else
-			error = count - buf.count;
-	}
-
-	fdput(arg);
-	return error;
-}
-
-int hpux_mount(const char *fs, const char *path, int mflag,
-		const char *fstype, const char *dataptr, int datalen)
-{
-	return -ENOSYS;
-}
-
-static int cp_hpux_stat(struct kstat *stat, struct hpux_stat64 __user *statbuf)
-{
-	struct hpux_stat64 tmp;
-
-	/* we probably want a different split here - is hpux 12:20? */
-
-	if (!new_valid_dev(stat->dev) || !new_valid_dev(stat->rdev))
-		return -EOVERFLOW;
-
-	memset(&tmp, 0, sizeof(tmp));
-	tmp.st_dev = new_encode_dev(stat->dev);
-	tmp.st_ino = stat->ino;
-	tmp.st_mode = stat->mode;
-	tmp.st_nlink = stat->nlink;
-	tmp.st_uid = from_kuid_munged(current_user_ns(), stat->uid);
-	tmp.st_gid = from_kgid_munged(current_user_ns(), stat->gid);
-	tmp.st_rdev = new_encode_dev(stat->rdev);
-	tmp.st_size = stat->size;
-	tmp.st_atime = stat->atime.tv_sec;
-	tmp.st_mtime = stat->mtime.tv_sec;
-	tmp.st_ctime = stat->ctime.tv_sec;
-	tmp.st_blocks = stat->blocks;
-	tmp.st_blksize = stat->blksize;
-	return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
-}
-
-long hpux_stat64(const char __user *filename, struct hpux_stat64 __user *statbuf)
-{
-	struct kstat stat;
-	int error = vfs_stat(filename, &stat);
-
-	if (!error)
-		error = cp_hpux_stat(&stat, statbuf);
-
-	return error;
-}
-
-long hpux_fstat64(unsigned int fd, struct hpux_stat64 __user *statbuf)
-{
-	struct kstat stat;
-	int error = vfs_fstat(fd, &stat);
-
-	if (!error)
-		error = cp_hpux_stat(&stat, statbuf);
-
-	return error;
-}
-
-long hpux_lstat64(const char __user *filename,
-		  struct hpux_stat64 __user *statbuf)
-{
-	struct kstat stat;
-	int error = vfs_lstat(filename, &stat);
-
-	if (!error)
-		error = cp_hpux_stat(&stat, statbuf);
-
-	return error;
-}
diff --git a/arch/parisc/hpux/gate.S b/arch/parisc/hpux/gate.S
deleted file mode 100644
index 0114688..0000000
--- a/arch/parisc/hpux/gate.S
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- *
- * Linux/PARISC Project (http://www.parisc-linux.org/)
- *
- * System call entry code Copyright (c) Matthew Wilcox 1999 <willy@bofh.ai>
- * Licensed under the GNU GPL.
- * thanks to Philipp Rumpf, Mike Shaver and various others
- * sorry about the wall, puffin..
- */
-
-#include <asm/assembly.h>
-#include <asm/asm-offsets.h>
-#include <asm/unistd.h>
-#include <asm/errno.h>
-#include <linux/linkage.h>
-
-	.level	LEVEL
-	.text
-
-	.import hpux_call_table
-	.import hpux_syscall_exit,code
-
-	.align	PAGE_SIZE
-ENTRY(hpux_gateway_page)
-	nop
-#ifdef CONFIG_64BIT
-#warning NEEDS WORK for 64-bit
-#endif
-	ldw     -64(%r30), %r29                 ;! 8th argument
-	ldw	-60(%r30), %r19			;! 7th argument
-	ldw	-56(%r30), %r20			;! 6th argument
-	ldw	-52(%r30), %r21			;! 5th argument
-	gate	.+8, %r0			/* become privileged */
-	mtsp	%r0,%sr4			/* get kernel space into sr4 */
-	mtsp	%r0,%sr5			/* get kernel space into sr5 */
-	mtsp	%r0,%sr6			/* get kernel space into sr6 */
-	mfsp    %sr7,%r1                        /* save user sr7 */
-	mtsp    %r1,%sr3                        /* and store it in sr3 */
-
-	mtctl   %r30,%cr28
-	mfctl   %cr30,%r1
-	xor     %r1,%r30,%r30                   /* ye olde xor trick */
-	xor     %r1,%r30,%r1
-	xor     %r1,%r30,%r30
-	ldo     TASK_SZ_ALGN+FRAME_SIZE(%r30),%r30  /* set up kernel stack */
-
-	/* N.B.: It is critical that we don't set sr7 to 0 until r30
-	 *       contains a valid kernel stack pointer. It is also
-	 *       critical that we don't start using the kernel stack
-	 *       until after sr7 has been set to 0.
-	 */
-
-	mtsp	%r0,%sr7			/* get kernel space into sr7 */
-	STREG   %r1,TASK_PT_GR30-TASK_SZ_ALGN-FRAME_SIZE(%r30) /* save usp */
-	ldo     -TASK_SZ_ALGN-FRAME_SIZE(%r30),%r1   /* get task ptr in %r1 */
-
-	/* Save some registers for sigcontext and potential task
-	   switch (see entry.S for the details of which ones are
-	   saved/restored).  TASK_PT_PSW is zeroed so we can see whether
-	   a process is on a syscall or not.  For an interrupt the real
-	   PSW value is stored.  This is needed for gdb and sys_ptrace. */
-	STREG	%r0,  TASK_PT_PSW(%r1)
-	STREG	%r2,  TASK_PT_GR2(%r1)		/* preserve rp */
-	STREG   %r19, TASK_PT_GR19(%r1)         /* 7th argument */
-	STREG   %r20, TASK_PT_GR20(%r1)         /* 6th argument */
-	STREG   %r21, TASK_PT_GR21(%r1)         /* 5th argument */
-	STREG   %r22, TASK_PT_GR22(%r1)         /* syscall # */
-	STREG	%r23, TASK_PT_GR23(%r1)		/* 4th argument */
-	STREG	%r24, TASK_PT_GR24(%r1)		/* 3rd argument */
-	STREG	%r25, TASK_PT_GR25(%r1)		/* 2nd argument */
-	STREG	%r26, TASK_PT_GR26(%r1)	 	/* 1st argument */
-	STREG	%r27, TASK_PT_GR27(%r1)		/* user dp */
-	STREG   %r28, TASK_PT_GR28(%r1)         /* return value 0 */
-	STREG   %r0, TASK_PT_ORIG_R28(%r1)     /* don't prohibit restarts */
-	STREG   %r29, TASK_PT_GR29(%r1)         /* 8th argument */
-	STREG	%r31, TASK_PT_GR31(%r1)		/* preserve syscall return ptr */
-	
-	ldo	TASK_PT_FR0(%r1), %r27		/* save fpregs from the kernel */
-	save_fp	%r27				/* or potential task switch  */
-
-	mfctl	%cr11, %r27			/* i.e. SAR */
-	STREG	%r27, TASK_PT_SAR(%r1)
-
-	loadgp
-
-	stw	%r21, -52(%r30)			;! 5th argument
-	stw	%r20, -56(%r30)			;! 6th argument
-	stw	%r19, -60(%r30)			;! 7th argument
-	stw     %r29, -64(%r30)                 ;! 8th argument
-
-	ldil	L%hpux_call_table, %r21
-	ldo	R%hpux_call_table(%r21), %r21
-	comiclr,>>=	__NR_HPUX_syscalls, %r22, %r0
-	b,n	syscall_nosys
-	LDREGX	%r22(%r21), %r21
-	ldil	L%hpux_syscall_exit,%r2
-	be	0(%sr7,%r21)
-	ldo	R%hpux_syscall_exit(%r2),%r2
-
-syscall_nosys:
-	ldil	L%hpux_syscall_exit,%r1
-	be	R%hpux_syscall_exit(%sr7,%r1)
-	ldo	-ENOSYS(%r0),%r28
-ENDPROC(hpux_gateway_page)
-
-	.align	PAGE_SIZE
-ENTRY(end_hpux_gateway_page)
diff --git a/arch/parisc/hpux/ioctl.c b/arch/parisc/hpux/ioctl.c
deleted file mode 100644
index dede476..0000000
--- a/arch/parisc/hpux/ioctl.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- *    Implements some necessary HPUX ioctls.
- *
- *    Copyright (C) 1999-2002 Matthew Wilcox <willy with parisc-linux.org>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-/*
- * Supported ioctls:
- *   TCGETA
- *   TCSETA
- *   TCSETAW
- *   TCSETAF
- *   TCSBRK
- *   TCXONC
- *   TCFLSH
- *   TIOCGWINSZ
- *   TIOCSWINSZ
- *   TIOCGPGRP
- *   TIOCSPGRP
- */
-
-#include <linux/sched.h>
-#include <linux/syscalls.h>
-#include <asm/errno.h>
-#include <asm/ioctl.h>
-#include <asm/termios.h>
-#include <asm/uaccess.h>
-
-static int hpux_ioctl_t(int fd, unsigned long cmd, unsigned long arg)
-{
-	int result = -EOPNOTSUPP;
-	int nr = _IOC_NR(cmd);
-	switch (nr) {
-	case 106:
-		result = sys_ioctl(fd, TIOCSWINSZ, arg);
-		break;
-	case 107:
-		result = sys_ioctl(fd, TIOCGWINSZ, arg);
-		break;
-	}
-	return result;
-}
-
-int hpux_ioctl(int fd, unsigned long cmd, unsigned long arg)
-{
-	int result = -EOPNOTSUPP;
-	int type = _IOC_TYPE(cmd);
-	switch (type) {
-	case 'T':
-		/* Our structures are now compatible with HPUX's */
-		result = sys_ioctl(fd, cmd, arg);
-		break;
-	case 't':
-		result = hpux_ioctl_t(fd, cmd, arg);
-		break;
-	}
-	return result;
-}
diff --git a/arch/parisc/hpux/sys_hpux.c b/arch/parisc/hpux/sys_hpux.c
deleted file mode 100644
index e5c4da0..0000000
--- a/arch/parisc/hpux/sys_hpux.c
+++ /dev/null
@@ -1,963 +0,0 @@
-/*
- *    Implements HPUX syscalls.
- *
- *    Copyright (C) 1999 Matthew Wilcox <willy with parisc-linux.org>
- *    Copyright (C) 2000 Philipp Rumpf
- *    Copyright (C) 2000 John Marvin <jsm with parisc-linux.org>
- *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
- *    Copyright (C) 2001 Nathan Neulinger <nneul at umr.edu>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include <linux/capability.h>
-#include <linux/file.h>
-#include <linux/fs.h>
-#include <linux/namei.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/syscalls.h>
-#include <linux/utsname.h>
-#include <linux/vfs.h>
-#include <linux/vmalloc.h>
-
-#include <asm/errno.h>
-#include <asm/pgalloc.h>
-#include <asm/uaccess.h>
-
-unsigned long hpux_brk(unsigned long addr)
-{
-	/* Sigh.  Looks like HP/UX libc relies on kernel bugs. */
-	return sys_brk(addr + PAGE_SIZE);
-}
-
-int hpux_sbrk(void)
-{
-	return -ENOSYS;
-}
-
-/* Random other syscalls */
-
-int hpux_nice(int priority_change)
-{
-	return -ENOSYS;
-}
-
-int hpux_ptrace(void)
-{
-	return -ENOSYS;
-}
-
-int hpux_wait(int __user *stat_loc)
-{
-	return sys_waitpid(-1, stat_loc, 0);
-}
-
-int hpux_setpgrp(void)
-{
-	return sys_setpgid(0,0);
-}
-
-int hpux_setpgrp3(void)
-{
-	return hpux_setpgrp();
-}
-
-#define _SC_CPU_VERSION	10001
-#define _SC_OPEN_MAX	4
-#define CPU_PA_RISC1_1	0x210
-
-int hpux_sysconf(int which)
-{
-	switch (which) {
-	case _SC_CPU_VERSION:
-		return CPU_PA_RISC1_1;
-	case _SC_OPEN_MAX:
-		return INT_MAX;
-	default:
-		return -EINVAL;
-	}
-}
-
-/*****************************************************************************/
-
-#define HPUX_UTSLEN 9
-#define HPUX_SNLEN 15
-
-struct hpux_utsname {
-	char sysname[HPUX_UTSLEN];
-	char nodename[HPUX_UTSLEN];
-	char release[HPUX_UTSLEN];
-	char version[HPUX_UTSLEN];
-	char machine[HPUX_UTSLEN];
-	char idnumber[HPUX_SNLEN];
-} ;
-
-struct hpux_ustat {
-	int32_t		f_tfree;	/* total free (daddr_t)  */
-	u_int32_t	f_tinode;	/* total inodes free (ino_t)  */
-	char		f_fname[6];	/* filsys name */
-	char		f_fpack[6];	/* filsys pack name */
-	u_int32_t	f_blksize;	/* filsys block size (int) */
-};
-
-/*
- * HPUX's utssys() call.  It's a collection of miscellaneous functions,
- * alas, so there's no nice way of splitting them up.
- */
-
-/*  This function is called from hpux_utssys(); HP-UX implements
- *  ustat() as an option to utssys().
- *
- *  Now, struct ustat on HP-UX is exactly the same as on Linux, except
- *  that it contains one addition field on the end, int32_t f_blksize.
- *  So, we could have written this function to just call the Linux
- *  sys_ustat(), (defined in linux/fs/super.c), and then just
- *  added this additional field to the user's structure.  But I figure
- *  if we're gonna be digging through filesystem structures to get
- *  this, we might as well just do the whole enchilada all in one go.
- *
- *  So, most of this function is almost identical to sys_ustat().
- *  I have placed comments at the few lines changed or added, to
- *  aid in porting forward if and when sys_ustat() is changed from
- *  its form in kernel 2.2.5.
- */
-static int hpux_ustat(dev_t dev, struct hpux_ustat __user *ubuf)
-{
-	struct hpux_ustat tmp;  /* Changed to hpux_ustat */
-	struct kstatfs sbuf;
-	int err = vfs_ustat(dev, &sbuf);
-	if (err)
-		goto out;
-
-	memset(&tmp,0,sizeof(tmp));
-
-	tmp.f_tfree = (int32_t)sbuf.f_bfree;
-	tmp.f_tinode = (u_int32_t)sbuf.f_ffree;
-	tmp.f_blksize = (u_int32_t)sbuf.f_bsize;  /*  Added this line  */
-
-	err = copy_to_user(ubuf, &tmp, sizeof(tmp)) ? -EFAULT : 0;
-out:
-	return err;
-}
-
-/*
- * Wrapper for hpux statfs call. At the moment, just calls the linux native one
- * and ignores the extra fields at the end of the hpux statfs struct.
- *
- */
-
-typedef int32_t hpux_fsid_t[2];              /* file system ID type */
-typedef uint16_t hpux_site_t;
-
-struct hpux_statfs {
-     int32_t f_type;                    /* type of info, zero for now */
-     int32_t f_bsize;                   /* fundamental file system block size */
-     int32_t f_blocks;                  /* total blocks in file system */
-     int32_t f_bfree;                   /* free block in fs */
-     int32_t f_bavail;                  /* free blocks avail to non-superuser */
-     int32_t f_files;                   /* total file nodes in file system */
-     int32_t f_ffree;                   /* free file nodes in fs */
-     hpux_fsid_t  f_fsid;                    /* file system ID */
-     int32_t f_magic;                   /* file system magic number */
-     int32_t f_featurebits;             /* file system features */
-     int32_t f_spare[4];                /* spare for later */
-     hpux_site_t  f_cnode;                   /* cluster node where mounted */
-     int16_t f_pad;
-};
-
-static int do_statfs_hpux(struct kstatfs *st, struct hpux_statfs __user *p)
-{
-	struct hpux_statfs buf;
-	memset(&buf, 0, sizeof(buf));
-	buf.f_type = st->f_type;
-	buf.f_bsize = st->f_bsize;
-	buf.f_blocks = st->f_blocks;
-	buf.f_bfree = st->f_bfree;
-	buf.f_bavail = st->f_bavail;
-	buf.f_files = st->f_files;
-	buf.f_ffree = st->f_ffree;
-	buf.f_fsid[0] = st->f_fsid.val[0];
-	buf.f_fsid[1] = st->f_fsid.val[1];
-	if (copy_to_user(p, &buf, sizeof(buf)))
-		return -EFAULT;
-	return 0;
-}
-
-/* hpux statfs */
-asmlinkage long hpux_statfs(const char __user *pathname,
-						struct hpux_statfs __user *buf)
-{
-	struct kstatfs st;
-	int error = user_statfs(pathname, &st);
-	if (!error)
-		error = do_statfs_hpux(&st, buf);
-	return error;
-}
-
-asmlinkage long hpux_fstatfs(unsigned int fd, struct hpux_statfs __user * buf)
-{
-	struct kstatfs st;
-	int error = fd_statfs(fd, &st);
-	if (!error)
-		error = do_statfs_hpux(&st, buf);
-	return error;
-}
-
-
-/*  This function is called from hpux_utssys(); HP-UX implements
- *  uname() as an option to utssys().
- *
- *  The form of this function is pretty much copied from sys_olduname(),
- *  defined in linux/arch/i386/kernel/sys_i386.c.
- */
-/*  TODO: Are these put_user calls OK?  Should they pass an int?
- *        (I copied it from sys_i386.c like this.)
- */
-static int hpux_uname(struct hpux_utsname __user *name)
-{
-	int error;
-
-	if (!name)
-		return -EFAULT;
-	if (!access_ok(VERIFY_WRITE,name,sizeof(struct hpux_utsname)))
-		return -EFAULT;
-
-	down_read(&uts_sem);
-
-	error = __copy_to_user(&name->sysname, &utsname()->sysname,
-			       HPUX_UTSLEN - 1);
-	error |= __put_user(0, name->sysname + HPUX_UTSLEN - 1);
-	error |= __copy_to_user(&name->nodename, &utsname()->nodename,
-				HPUX_UTSLEN - 1);
-	error |= __put_user(0, name->nodename + HPUX_UTSLEN - 1);
-	error |= __copy_to_user(&name->release, &utsname()->release,
-				HPUX_UTSLEN - 1);
-	error |= __put_user(0, name->release + HPUX_UTSLEN - 1);
-	error |= __copy_to_user(&name->version, &utsname()->version,
-				HPUX_UTSLEN - 1);
-	error |= __put_user(0, name->version + HPUX_UTSLEN - 1);
-	error |= __copy_to_user(&name->machine, &utsname()->machine,
-				HPUX_UTSLEN - 1);
-	error |= __put_user(0, name->machine + HPUX_UTSLEN - 1);
-
-	up_read(&uts_sem);
-
-	/*  HP-UX  utsname has no domainname field.  */
-
-	/*  TODO:  Implement idnumber!!!  */
-#if 0
-	error |= __put_user(0,name->idnumber);
-	error |= __put_user(0,name->idnumber+HPUX_SNLEN-1);
-#endif
-
-	error = error ? -EFAULT : 0;
-
-	return error;
-}
-
-/*  Note: HP-UX just uses the old suser() function to check perms
- *  in this system call.  We'll use capable(CAP_SYS_ADMIN).
- */
-int hpux_utssys(char __user *ubuf, int n, int type)
-{
-	int len;
-	int error;
-	switch( type ) {
-	case 0:
-		/*  uname():  */
-		return hpux_uname((struct hpux_utsname __user *)ubuf);
-		break ;
-	case 1:
-		/*  Obsolete (used to be umask().)  */
-		return -EFAULT ;
-		break ;
-	case 2:
-		/*  ustat():  */
-		return hpux_ustat(new_decode_dev(n),
-				  (struct hpux_ustat __user *)ubuf);
-		break;
-	case 3:
-		/*  setuname():
-		 *
-		 *  On linux (unlike HP-UX), utsname.nodename
-		 *  is the same as the hostname.
-		 *
-		 *  sys_sethostname() is defined in linux/kernel/sys.c.
-		 */
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-		/*  Unlike Linux, HP-UX returns an error if n==0:  */
-		if ( n <= 0 )
-			return -EINVAL ;
-		/*  Unlike Linux, HP-UX truncates it if n is too big:  */
-		len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
-		return sys_sethostname(ubuf, len);
-		break ;
-	case 4:
-		/*  sethostname():
-		 *
-		 *  sys_sethostname() is defined in linux/kernel/sys.c.
-		 */
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-		/*  Unlike Linux, HP-UX returns an error if n==0:  */
-		if ( n <= 0 )
-			return -EINVAL ;
-		/*  Unlike Linux, HP-UX truncates it if n is too big:  */
-		len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
-		return sys_sethostname(ubuf, len);
-		break ;
-	case 5:
-		/*  gethostname():
-		 *
-		 *  sys_gethostname() is defined in linux/kernel/sys.c.
-		 */
-		/*  Unlike Linux, HP-UX returns an error if n==0:  */
-		if ( n <= 0 )
-			return -EINVAL ;
-		return sys_gethostname(ubuf, n);
-		break ;
-	case 6:
-		/*  Supposedly called from setuname() in libc.
-		 *  TODO: When and why is this called?
-		 *        Is it ever even called?
-		 *
-		 *  This code should look a lot like sys_sethostname(),
-		 *  defined in linux/kernel/sys.c.  If that gets updated,
-		 *  update this code similarly.
-		 */
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-		/*  Unlike Linux, HP-UX returns an error if n==0:  */
-		if ( n <= 0 )
-			return -EINVAL ;
-		/*  Unlike Linux, HP-UX truncates it if n is too big:  */
-		len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
-		/**/
-		/*  TODO:  print a warning about using this?  */
-		down_write(&uts_sem);
-		error = -EFAULT;
-		if (!copy_from_user(utsname()->sysname, ubuf, len)) {
-			utsname()->sysname[len] = 0;
-			error = 0;
-		}
-		up_write(&uts_sem);
-		return error;
-		break ;
-	case 7:
-		/*  Sets utsname.release, if you're allowed.
-		 *  Undocumented.  Used by swinstall to change the
-		 *  OS version, during OS updates.  Yuck!!!
-		 *
-		 *  This code should look a lot like sys_sethostname()
-		 *  in linux/kernel/sys.c.  If that gets updated, update
-		 *  this code similarly.
-		 */
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-		/*  Unlike Linux, HP-UX returns an error if n==0:  */
-		if ( n <= 0 )
-			return -EINVAL ;
-		/*  Unlike Linux, HP-UX truncates it if n is too big:  */
-		len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
-		/**/
-		/*  TODO:  print a warning about this?  */
-		down_write(&uts_sem);
-		error = -EFAULT;
-		if (!copy_from_user(utsname()->release, ubuf, len)) {
-			utsname()->release[len] = 0;
-			error = 0;
-		}
-		up_write(&uts_sem);
-		return error;
-		break ;
-	default:
-		/*  This system call returns -EFAULT if given an unknown type.
-	 	 *  Why not -EINVAL?  I don't know, it's just not what they did.
-	 	 */
-		return -EFAULT ;
-	}
-}
-
-int hpux_getdomainname(char __user *name, int len)
-{
- 	int nlen;
- 	int err = -EFAULT;
- 	
- 	down_read(&uts_sem);
- 	
-	nlen = strlen(utsname()->domainname) + 1;
-
-	if (nlen < len)
-		len = nlen;
-	if(len > __NEW_UTS_LEN)
-		goto done;
-	if(copy_to_user(name, utsname()->domainname, len))
-		goto done;
-	err = 0;
-done:
-	up_read(&uts_sem);
-	return err;
-	
-}
-
-int hpux_pipe(int *kstack_fildes)
-{
-	return do_pipe_flags(kstack_fildes, 0);
-}
-
-/* lies - says it works, but it really didn't lock anything */
-int hpux_lockf(int fildes, int function, off_t size)
-{
-	return 0;
-}
-
-int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
-{
-	char *fsname = NULL;
-	int len = 0;
-	int fstype;
-
-/*Unimplemented HP-UX syscall emulation. Syscall #334 (sysfs)
-  Args: 1 80057bf4 0 400179f0 0 0 0 */
-	printk(KERN_DEBUG "in hpux_sysfs\n");
-	printk(KERN_DEBUG "hpux_sysfs called with opcode = %d\n", opcode);
-	printk(KERN_DEBUG "hpux_sysfs called with arg1='%lx'\n", arg1);
-
-	if ( opcode == 1 ) { /* GETFSIND */	
-		char __user *user_fsname = (char __user *)arg1;
-		len = strlen_user(user_fsname);
-		printk(KERN_DEBUG "len of arg1 = %d\n", len);
-		if (len == 0)
-			return 0;
-		fsname = kmalloc(len, GFP_KERNEL);
-		if (!fsname) {
-			printk(KERN_DEBUG "failed to kmalloc fsname\n");
-			return 0;
-		}
-
-		if (copy_from_user(fsname, user_fsname, len)) {
-			printk(KERN_DEBUG "failed to copy_from_user fsname\n");
-			kfree(fsname);
-			return 0;
-		}
-
-		/* String could be altered by userspace after strlen_user() */
-		fsname[len - 1] = '\0';
-
-		printk(KERN_DEBUG "that is '%s' as (char *)\n", fsname);
-		if ( !strcmp(fsname, "hfs") ) {
-			fstype = 0;
-		} else {
-			fstype = 0;
-		}
-
-		kfree(fsname);
-
-		printk(KERN_DEBUG "returning fstype=%d\n", fstype);
-		return fstype; /* something other than default */
-	}
-
-
-	return 0;
-}
-
-
-/* Table of syscall names and handle for unimplemented routines */
-static const char * const syscall_names[] = {
-	"nosys",                  /* 0 */
-	"exit",                  
-	"fork",                  
-	"read",                  
-	"write",                 
-	"open",                   /* 5 */
-	"close",                 
-	"wait",                  
-	"creat",                 
-	"link",                  
-	"unlink",                 /* 10 */
-	"execv",                 
-	"chdir",                 
-	"time",                  
-	"mknod",                 
-	"chmod",                  /* 15 */
-	"chown",                 
-	"brk",                   
-	"lchmod",                
-	"lseek",                 
-	"getpid",                 /* 20 */
-	"mount",                 
-	"umount",                
-	"setuid",                
-	"getuid",                
-	"stime",                  /* 25 */
-	"ptrace",                
-	"alarm",                 
-	NULL,                    
-	"pause",                 
-	"utime",                  /* 30 */
-	"stty",                  
-	"gtty",                  
-	"access",                
-	"nice",                  
-	"ftime",                  /* 35 */
-	"sync",                  
-	"kill",                  
-	"stat",                  
-	"setpgrp3",              
-	"lstat",                  /* 40 */
-	"dup",                   
-	"pipe",                  
-	"times",                 
-	"profil",                
-	"ki_call",                /* 45 */
-	"setgid",                
-	"getgid",                
-	NULL,                    
-	NULL,                    
-	NULL,                     /* 50 */
-	"acct",                  
-	"set_userthreadid",      
-	NULL,                    
-	"ioctl",                 
-	"reboot",                 /* 55 */
-	"symlink",               
-	"utssys",                
-	"readlink",              
-	"execve",                
-	"umask",                  /* 60 */
-	"chroot",                
-	"fcntl",                 
-	"ulimit",                
-	NULL,                    
-	NULL,                     /* 65 */
-	"vfork",                 
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                     /* 70 */
-	"mmap",                  
-	NULL,                    
-	"munmap",                
-	"mprotect",              
-	"madvise",                /* 75 */
-	"vhangup",               
-	"swapoff",               
-	NULL,                    
-	"getgroups",             
-	"setgroups",              /* 80 */
-	"getpgrp2",              
-	"setpgid/setpgrp2",      
-	"setitimer",             
-	"wait3",                 
-	"swapon",                 /* 85 */
-	"getitimer",             
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	"dup2",                   /* 90 */
-	NULL,                    
-	"fstat",                 
-	"select",                
-	NULL,                    
-	"fsync",                  /* 95 */
-	"setpriority",           
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	"getpriority",            /* 100 */
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                     /* 105 */
-	NULL,                    
-	NULL,                    
-	"sigvector",             
-	"sigblock",              
-	"sigsetmask",             /* 110 */
-	"sigpause",              
-	"sigstack",              
-	NULL,                    
-	NULL,                    
-	NULL,                     /* 115 */
-	"gettimeofday",          
-	"getrusage",             
-	NULL,                    
-	NULL,                    
-	"readv",                  /* 120 */
-	"writev",                
-	"settimeofday",          
-	"fchown",                
-	"fchmod",                
-	NULL,                     /* 125 */
-	"setresuid",             
-	"setresgid",             
-	"rename",                
-	"truncate",              
-	"ftruncate",              /* 130 */
-	NULL,                    
-	"sysconf",               
-	NULL,                    
-	NULL,                    
-	NULL,                     /* 135 */
-	"mkdir",                 
-	"rmdir",                 
-	NULL,                    
-	"sigcleanup",            
-	"setcore",                /* 140 */
-	NULL,                    
-	"gethostid",             
-	"sethostid",             
-	"getrlimit",             
-	"setrlimit",              /* 145 */
-	NULL,                    
-	NULL,                    
-	"quotactl",              
-	"get_sysinfo",           
-	NULL,                     /* 150 */
-	"privgrp",               
-	"rtprio",                
-	"plock",                 
-	NULL,                    
-	"lockf",                  /* 155 */
-	"semget",                
-	NULL,                    
-	"semop",                 
-	"msgget",                
-	NULL,                     /* 160 */
-	"msgsnd",                
-	"msgrcv",                
-	"shmget",                
-	NULL,                    
-	"shmat",                  /* 165 */
-	"shmdt",                 
-	NULL,                    
-	"csp/nsp_init",          
-	"cluster",               
-	"mkrnod",                 /* 170 */
-	"test",                  
-	"unsp_open",             
-	NULL,                    
-	"getcontext",            
-	"osetcontext",            /* 175 */
-	"bigio",                 
-	"pipenode",              
-	"lsync",                 
-	"getmachineid",          
-	"cnodeid/mysite",         /* 180 */
-	"cnodes/sitels",         
-	"swapclients",           
-	"rmtprocess",            
-	"dskless_stats",         
-	"sigprocmask",            /* 185 */
-	"sigpending",            
-	"sigsuspend",            
-	"sigaction",             
-	NULL,                    
-	"nfssvc",                 /* 190 */
-	"getfh",                 
-	"getdomainname",         
-	"setdomainname",         
-	"async_daemon",          
-	"getdirentries",          /* 195 */
-	NULL,                
-	NULL,               
-	"vfsmount",              
-	NULL,                    
-	"waitpid",                /* 200 */
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                     /* 205 */
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                     /* 210 */
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                     /* 215 */
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                     /* 220 */
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	"sigsetreturn",          
-	"sigsetstatemask",        /* 225 */
-	"bfactl",                
-	"cs",                    
-	"cds",                   
-	NULL,                    
-	"pathconf",               /* 230 */
-	"fpathconf",             
-	NULL,                    
-	NULL,                    
-	"nfs_fcntl",             
-	"ogetacl",                /* 235 */
-	"ofgetacl",              
-	"osetacl",               
-	"ofsetacl",              
-	"pstat",                 
-	"getaudid",               /* 240 */
-	"setaudid",              
-	"getaudproc",            
-	"setaudproc",            
-	"getevent",              
-	"setevent",               /* 245 */
-	"audwrite",              
-	"audswitch",             
-	"audctl",                
-	"ogetaccess",            
-	"fsctl",                  /* 250 */
-	"ulconnect",             
-	"ulcontrol",             
-	"ulcreate",              
-	"uldest",                
-	"ulrecv",                 /* 255 */
-	"ulrecvcn",              
-	"ulsend",                
-	"ulshutdown",            
-	"swapfs",                
-	"fss",                    /* 260 */
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                     /* 265 */
-	NULL,                    
-	"tsync",                 
-	"getnumfds",             
-	"poll",                  
-	"getmsg",                 /* 270 */
-	"putmsg",                
-	"fchdir",                
-	"getmount_cnt",          
-	"getmount_entry",        
-	"accept",                 /* 275 */
-	"bind",                  
-	"connect",               
-	"getpeername",           
-	"getsockname",           
-	"getsockopt",             /* 280 */
-	"listen",                
-	"recv",                  
-	"recvfrom",              
-	"recvmsg",               
-	"send",                   /* 285 */
-	"sendmsg",               
-	"sendto",                
-	"setsockopt",            
-	"shutdown",              
-	"socket",                 /* 290 */
-	"socketpair",            
-	"proc_open",             
-	"proc_close",            
-	"proc_send",             
-	"proc_recv",              /* 295 */
-	"proc_sendrecv",         
-	"proc_syscall",          
-	"ipccreate",             
-	"ipcname",               
-	"ipcnamerase",            /* 300 */
-	"ipclookup",             
-	"ipcselect",             
-	"ipcconnect",            
-	"ipcrecvcn",             
-	"ipcsend",                /* 305 */
-	"ipcrecv",               
-	"ipcgetnodename",        
-	"ipcsetnodename",        
-	"ipccontrol",            
-	"ipcshutdown",            /* 310 */
-	"ipcdest",               
-	"semctl",                
-	"msgctl",                
-	"shmctl",                
-	"mpctl",                  /* 315 */
-	"exportfs",              
-	"getpmsg",               
-	"putpmsg",               
-	"strioctl",              
-	"msync",                  /* 320 */
-	"msleep",                
-	"mwakeup",               
-	"msem_init",             
-	"msem_remove",           
-	"adjtime",                /* 325 */
-	"kload",                 
-	"fattach",               
-	"fdetach",               
-	"serialize",             
-	"statvfs",                /* 330 */
-	"fstatvfs",              
-	"lchown",                
-	"getsid",                
-	"sysfs",                 
-	NULL,                     /* 335 */
-	NULL,                    
-	"sched_setparam",        
-	"sched_getparam",        
-	"sched_setscheduler",    
-	"sched_getscheduler",     /* 340 */
-	"sched_yield",           
-	"sched_get_priority_max",
-	"sched_get_priority_min",
-	"sched_rr_get_interval", 
-	"clock_settime",          /* 345 */
-	"clock_gettime",         
-	"clock_getres",          
-	"timer_create",          
-	"timer_delete",          
-	"timer_settime",          /* 350 */
-	"timer_gettime",         
-	"timer_getoverrun",      
-	"nanosleep",             
-	"toolbox",               
-	NULL,                     /* 355 */
-	"getdents",              
-	"getcontext",            
-	"sysinfo",               
-	"fcntl64",               
-	"ftruncate64",            /* 360 */
-	"fstat64",               
-	"getdirentries64",       
-	"getrlimit64",           
-	"lockf64",               
-	"lseek64",                /* 365 */
-	"lstat64",               
-	"mmap64",                
-	"setrlimit64",           
-	"stat64",                
-	"truncate64",             /* 370 */
-	"ulimit64",              
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                     /* 375 */
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	NULL,                    
-	"setcontext",             /* 380 */
-	"sigaltstack",           
-	"waitid",                
-	"setpgrp",               
-	"recvmsg2",              
-	"sendmsg2",               /* 385 */
-	"socket2",               
-	"socketpair2",           
-	"setregid",              
-	"lwp_create",            
-	"lwp_terminate",          /* 390 */
-	"lwp_wait",              
-	"lwp_suspend",           
-	"lwp_resume",            
-	"lwp_self",              
-	"lwp_abort_syscall",      /* 395 */
-	"lwp_info",              
-	"lwp_kill",              
-	"ksleep",                
-	"kwakeup",               
-	"ksleep_abort",           /* 400 */
-	"lwp_proc_info",         
-	"lwp_exit",              
-	"lwp_continue",          
-	"getacl",                
-	"fgetacl",                /* 405 */
-	"setacl",                
-	"fsetacl",               
-	"getaccess",             
-	"lwp_mutex_init",        
-	"lwp_mutex_lock_sys",     /* 410 */
-	"lwp_mutex_unlock",      
-	"lwp_cond_init",         
-	"lwp_cond_signal",       
-	"lwp_cond_broadcast",    
-	"lwp_cond_wait_sys",      /* 415 */
-	"lwp_getscheduler",      
-	"lwp_setscheduler",      
-	"lwp_getprivate",        
-	"lwp_setprivate",        
-	"lwp_detach",             /* 420 */
-	"mlock",                 
-	"munlock",               
-	"mlockall",              
-	"munlockall",            
-	"shm_open",               /* 425 */
-	"shm_unlink",            
-	"sigqueue",              
-	"sigwaitinfo",           
-	"sigtimedwait",          
-	"sigwait",                /* 430 */
-	"aio_read",              
-	"aio_write",             
-	"lio_listio",            
-	"aio_error",             
-	"aio_return",             /* 435 */
-	"aio_cancel",            
-	"aio_suspend",           
-	"aio_fsync",             
-	"mq_open",               
-	"mq_unlink",              /* 440 */
-	"mq_send",               
-	"mq_receive",            
-	"mq_notify",             
-	"mq_setattr",            
-	"mq_getattr",             /* 445 */
-	"ksem_open",             
-	"ksem_unlink",           
-	"ksem_close",            
-	"ksem_destroy",          
-	"lw_sem_incr",            /* 450 */
-	"lw_sem_decr",           
-	"lw_sem_read",           
-	"mq_close",              
-};
-static const int syscall_names_max = 453;
-
-int
-hpux_unimplemented(unsigned long arg1,unsigned long arg2,unsigned long arg3,
-		   unsigned long arg4,unsigned long arg5,unsigned long arg6,
-		   unsigned long arg7,unsigned long sc_num)
-{
-	/* NOTE: sc_num trashes arg8 for the few syscalls that actually
-	 * have a valid 8th argument.
-	 */
-	const char *name = NULL;
-	if ( sc_num <= syscall_names_max && sc_num >= 0 ) {
-		name = syscall_names[sc_num];
-	}
-
-	if ( name ) {
-		printk(KERN_DEBUG "Unimplemented HP-UX syscall emulation. Syscall #%lu (%s)\n",
-		sc_num, name);
-	} else {
-		printk(KERN_DEBUG "Unimplemented unknown HP-UX syscall emulation. Syscall #%lu\n",
-		sc_num);
-	}
-	
-	printk(KERN_DEBUG "  Args: %lx %lx %lx %lx %lx %lx %lx\n",
-		arg1, arg2, arg3, arg4, arg5, arg6, arg7);
-
-	return -ENOSYS;
-}
diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
deleted file mode 100644
index 58c53c8..0000000
--- a/arch/parisc/hpux/wrappers.S
+++ /dev/null
@@ -1,250 +0,0 @@
-/*
- * Linux/PARISC Project (http://www.parisc-linux.org/)
- *
- * HP-UX System Call Wrapper routines and System Call Return Path
- *
- * Copyright (C) 2000 Hewlett-Packard (John Marvin)
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2, or (at your option)
- *    any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifdef CONFIG_64BIT
-#warning PA64 support needs more work...did first cut
-#endif
-
-#include <asm/asm-offsets.h>
-#include <asm/assembly.h>
-#include <asm/signal.h>
-#include <linux/linkage.h>
-
-	.level	LEVEL
-	.text
-
-	/* These should probably go in a header file somewhere.
-	 * They are duplicated in kernel/wrappers.S
-	 * Possibly we should consider consolidating these
-	 * register save/restore macros.
-	 */
-	.macro	reg_save regs
-#ifdef CONFIG_64BIT
-#warning NEEDS WORK for 64-bit
-#endif
-	STREG	%r3, PT_GR3(\regs)
-	STREG	%r4, PT_GR4(\regs)
-	STREG	%r5, PT_GR5(\regs)
-	STREG	%r6, PT_GR6(\regs)
-	STREG	%r7, PT_GR7(\regs)
-	STREG	%r8, PT_GR8(\regs)
-	STREG	%r9, PT_GR9(\regs)
-	STREG	%r10,PT_GR10(\regs)
-	STREG	%r11,PT_GR11(\regs)
-	STREG	%r12,PT_GR12(\regs)
-	STREG	%r13,PT_GR13(\regs)
-	STREG	%r14,PT_GR14(\regs)
-	STREG	%r15,PT_GR15(\regs)
-	STREG	%r16,PT_GR16(\regs)
-	STREG	%r17,PT_GR17(\regs)
-	STREG	%r18,PT_GR18(\regs)
-	.endm
-
-	.macro	reg_restore regs
-	LDREG	PT_GR3(\regs), %r3
-	LDREG	PT_GR4(\regs), %r4
-	LDREG	PT_GR5(\regs), %r5
-	LDREG	PT_GR6(\regs), %r6
-	LDREG	PT_GR7(\regs), %r7
-	LDREG	PT_GR8(\regs), %r8
-	LDREG	PT_GR9(\regs), %r9
-	LDREG	PT_GR10(\regs),%r10
-	LDREG	PT_GR11(\regs),%r11
-	LDREG	PT_GR12(\regs),%r12
-	LDREG	PT_GR13(\regs),%r13
-	LDREG	PT_GR14(\regs),%r14
-	LDREG	PT_GR15(\regs),%r15
-	LDREG	PT_GR16(\regs),%r16
-	LDREG	PT_GR17(\regs),%r17
-	LDREG	PT_GR18(\regs),%r18
-	.endm
-
-
-	.import sys_fork
-
-ENTRY(hpux_fork_wrapper)
-	ldo	TASK_REGS-TASK_SZ_ALGN-64(%r30),%r1	    ;! get pt regs
-							    ;! pointer in task
-	reg_save %r1
-
-	STREG	%r2,-20(%r30)
-	ldo	64(%r30),%r30
-	STREG	%r2,PT_GR19(%r1)	;! save for child
-	STREG	%r30,PT_GR21(%r1)	;! save for child
-
-	LDREG	PT_GR30(%r1),%r25
-	mtctl	%r25,%cr29
-	copy	%r1,%r24
-	bl	sys_clone,%r2
-	ldi	SIGCHLD,%r26
-
-	LDREG	-84(%r30),%r2
-fork_return:
-	ldo	-64(%r30),%r30
-	ldo	TASK_REGS-TASK_SZ_ALGN-64(%r30),%r1	    ;! get pt regs
-
-	reg_restore %r1
-
-	/*
-	 * HP-UX wants pid (child gets parent pid, parent gets child pid)
-	 * in r28 and a flag in r29 (r29 == 1 for child, 0 for parent).
-	 * Linux fork returns 0 for child, pid for parent. Since HP-UX
-	 * libc stub throws away parent pid and returns 0 for child,
-	 * we'll just return 0 for parent pid now. Only applications
-	 * that jump directly to the gateway page (not supported) will
-	 * know the difference. We can fix this later if necessary.
-	 */
-
-	ldo	-1024(%r0),%r1
-	comb,>>=,n %r28,%r1,fork_exit  /* just let the syscall exit handle it */
-	or,=	%r28,%r0,%r0
-	or,tr	%r0,%r0,%r29	/* r28 <> 0, we are parent, set r29 to 0 */
-	ldo	1(%r0),%r29 	/* r28 == 0, we are child,  set r29 to 1 */
-
-fork_exit:
-	bv	%r0(%r2)
-	nop
-ENDPROC(hpux_fork_wrapper)
-
-	/* Set the return value for the child */
-
-ENTRY(hpux_child_return)
-#if defined(CONFIG_SMP) || defined(CONFIG_PREEMPT)
-	bl,n	schedule_tail, %r2
-#endif
-
-	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
-	b fork_return
-	copy %r0,%r28
-ENDPROC(hpux_child_return)
-
-	.import hpux_execve
-
-ENTRY(hpux_execv_wrapper)
-	copy %r0,%r24  /* NULL environment */
-
-ENTRY(hpux_execve_wrapper)
-
-	ldo	TASK_REGS-TASK_SZ_ALGN-64(%r30),%r1	    ;! get pt regs
-
-	/*
-	 * Do we need to save/restore r3-r18 here?
-	 * I don't think so. why would new thread need old
-	 * threads registers?
-	 */
-
-	/* Store arg0, arg1 and arg2 so that hpux_execve will find them */
-
-	STREG %r26,PT_GR26(%r1)
-	STREG %r25,PT_GR25(%r1)
-	STREG %r24,PT_GR24(%r1)
-
-	STREG %r2,-20(%r30)
-	ldo 64(%r30),%r30
-	bl hpux_execve,%r2
-	copy %r1,%arg0
-
-	ldo -64(%r30),%r30
-	LDREG	-20(%r30),%r2
-
-	/* If exec succeeded we need to load the args */
-
-	ldo -1024(%r0),%r1
-	comb,>>= %r28,%r1,exec_error
-	copy %r2,%r19
-	ldo	-TASK_SZ_ALGN-64(%r30),%r1	   ;! get task ptr
-	LDREG	TASK_PT_GR26(%r1),%r26
-	LDREG	TASK_PT_GR25(%r1),%r25
-	LDREG	TASK_PT_GR24(%r1),%r24
-	LDREG	TASK_PT_GR23(%r1),%r23
-	copy %r0,%r2	/* Flag to syscall_exit not to clear args */
-
-exec_error:
-	bv %r0(%r19)
-	nop
-ENDPROC(hpux_execv_wrapper)
-
-	.import hpux_pipe
-
-	/* HP-UX expects pipefd's returned in r28 & r29 */
-
-ENTRY(hpux_pipe_wrapper)
-	STREG %r2,-20(%r30)
-	ldo 64(%r30),%r30
-	bl hpux_pipe,%r2
-	ldo -56(%r30),%r26 /* pass local array to hpux_pipe */
-
-
-	ldo -1024(%r0),%r1
-	comb,>>= %r28,%r1,pipe_exit /* let syscall exit handle it */
-	LDREG	-84(%r30),%r2
-
-	/* if success, load fd's from stack array */
-
-	LDREG	-56(%r30),%r28
-	LDREG	-52(%r30),%r29
-
-pipe_exit:
-	bv %r0(%r2)
-	ldo -64(%r30),%r30
-ENDPROC(hpux_pipe_wrapper)
-
-	.import syscall_exit
-
-ENTRY(hpux_syscall_exit)
-	/*
-	 *
-	 * HP-UX call return conventions:
-	 *
-	 * if error:
-	 *	 r22 = 1
-	 *	 r28 = errno value
-	 *	 r29 = secondary return value
-	 * else
-	 *	 r22 = 0
-	 *	 r28 = return value
-	 *	 r29 = secondary return value
-	 *
-	 * For now, we'll just check to see if r28 is < (unsigned long)-1024
-	 * (to handle addresses > 2 Gb) and if so set r22 to zero. If not,
-	 * we'll complement r28 and set r22 to 1. Wrappers will be
-	 * needed for syscalls that care about the secondary return value.
-	 * The wrapper may also need a way of avoiding the following code,
-	 * but we'll deal with that when it becomes necessary.
-	 */
-
-	ldo -1024(%r0),%r1
-	comb,<< %r28,%r1,no_error
-	copy %r0,%r22
-	subi 0,%r28,%r28
-	ldo 1(%r0),%r22
-
-no_error:
-	b,n syscall_exit
-ENDPROC(hpux_syscall_exit)
-
-	.import hpux_unimplemented

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: hpux - Remove hpux gateway page
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Drop code to create HP-UX gateway page and syscall entry code.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 689a8ad..54adb60 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -330,8 +330,6 @@ struct mm_struct;
 /* Free all resources held by a thread. */
 extern void release_thread(struct task_struct *);
 
-extern void map_hpux_gateway_page(struct task_struct *tsk, struct mm_struct *mm);
-
 extern unsigned long get_wchan(struct task_struct *p);
 
 #define KSTK_EIP(tsk)	((tsk)->thread.regs.iaoq[0])
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index e8f07dd..2ab16bb 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1774,10 +1774,6 @@ ENTRY(sys_rt_sigreturn_wrapper)
 ENDPROC(sys_rt_sigreturn_wrapper)
 
 ENTRY(syscall_exit)
-	/* NOTE: HP-UX syscalls also come through here
-	 * after hpux_syscall_exit fixes up return
-	 * values. */
-
 	/* NOTE: Not all syscalls exit this way.  rt_sigreturn will exit
 	 * via syscall_exit_rfi if the signal was received while the process
 	 * was running.
@@ -1789,22 +1785,6 @@ ENTRY(syscall_exit)
 	LDREG     TI_TASK(%r1),%r1
 	STREG     %r28,TASK_PT_GR28(%r1)
 
-#ifdef CONFIG_HPUX
-/* <linux/personality.h> cannot be easily included */
-#define PER_HPUX 0x10
-	ldw	TASK_PERSONALITY(%r1),%r19
-
-	/* We can't use "CMPIB<> PER_HPUX" since "im5" field is sign extended */
-	ldo	  -PER_HPUX(%r19), %r19
-	cmpib,COND(<>),n 0,%r19,1f
-
-	/* Save other hpux returns if personality is PER_HPUX */
-	STREG     %r22,TASK_PT_GR22(%r1)
-	STREG     %r29,TASK_PT_GR29(%r1)
-1:
-
-#endif /* CONFIG_HPUX */
-
 	/* Seems to me that dp could be wrong here, if the syscall involved
 	 * calling a module, and nothing got round to restoring dp on return.
 	 */
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 0bbbf0d..8a488c2 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -193,9 +193,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 	 * Make them const so the compiler knows they live in .text */
 	extern void * const ret_from_kernel_thread;
 	extern void * const child_return;
-#ifdef CONFIG_HPUX
-	extern void * const hpux_child_return;
-#endif
+
 	if (unlikely(p->flags & PF_KTHREAD)) {
 		memset(cregs, 0, sizeof(struct pt_regs));
 		if (!usp) /* idle thread */
@@ -229,15 +227,8 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 				cregs->gr[30] = usp;
 		}
 		cregs->ksp = (unsigned long)stack + THREAD_SZ_ALGN + FRAME_SIZE;
-		if (personality(p->personality) == PER_HPUX) {
-#ifdef CONFIG_HPUX
-			cregs->kpc = (unsigned long) &hpux_child_return;
-#else
-			BUG();
-#endif
-		} else {
-			cregs->kpc = (unsigned long) &child_return;
-		}
+		cregs->kpc = (unsigned long) &child_return;
+
 		/* Setup thread TLS area from the 4th parameter in clone */
 		if (clone_flags & CLONE_SETTLS)
 			cregs->cr27 = cregs->gr[23];
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 9b910a0..81e749f 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -9,8 +9,7 @@
  *
  *  Like the IA-64, we are a recent enough port (we are *starting*
  *  with glibc2.2) that we do not need to support the old non-realtime
- *  Linux signals.  Therefore we don't.  HP/UX signals will go in
- *  arch/parisc/hpux/signal.c when we figure out how to do them.
+ *  Linux signals.  Therefore we don't.
  */
 
 #include <linux/sched.h>
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 0bef864..15dbe81 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -750,78 +750,6 @@ static void __init gateway_init(void)
 		  PAGE_SIZE, PAGE_GATEWAY, 1);
 }
 
-#ifdef CONFIG_HPUX
-void
-map_hpux_gateway_page(struct task_struct *tsk, struct mm_struct *mm)
-{
-	pgd_t *pg_dir;
-	pmd_t *pmd;
-	pte_t *pg_table;
-	unsigned long start_pmd;
-	unsigned long start_pte;
-	unsigned long address;
-	unsigned long hpux_gw_page_addr;
-	/* FIXME: This is 'const' in order to trick the compiler
-	   into not treating it as DP-relative data. */
-	extern void * const hpux_gateway_page;
-
-	hpux_gw_page_addr = HPUX_GATEWAY_ADDR & PAGE_MASK;
-
-	/*
-	 * Setup HP-UX Gateway page.
-	 *
-	 * The HP-UX gateway page resides in the user address space,
-	 * so it needs to be aliased into each process.
-	 */
-
-	pg_dir = pgd_offset(mm,hpux_gw_page_addr);
-
-#if PTRS_PER_PMD == 1
-	start_pmd = 0;
-#else
-	start_pmd = ((hpux_gw_page_addr >> PMD_SHIFT) & (PTRS_PER_PMD - 1));
-#endif
-	start_pte = ((hpux_gw_page_addr >> PAGE_SHIFT) & (PTRS_PER_PTE - 1));
-
-	address = __pa(&hpux_gateway_page);
-#if PTRS_PER_PMD == 1
-	pmd = (pmd_t *)__pa(pg_dir);
-#else
-	pmd = (pmd_t *) pgd_address(*pg_dir);
-
-	/*
-	 * pmd is physical at this point
-	 */
-
-	if (!pmd) {
-		pmd = (pmd_t *) get_zeroed_page(GFP_KERNEL);
-		pmd = (pmd_t *) __pa(pmd);
-	}
-
-	__pgd_val_set(*pg_dir, PxD_FLAG_PRESENT | PxD_FLAG_VALID | (unsigned long) pmd);
-#endif
-	/* now change pmd to kernel virtual addresses */
-
-	pmd = (pmd_t *)__va(pmd) + start_pmd;
-
-	/*
-	 * pg_table is physical at this point
-	 */
-
-	pg_table = (pte_t *) pmd_address(*pmd);
-	if (!pg_table)
-		pg_table = (pte_t *) __pa(get_zeroed_page(GFP_KERNEL));
-
-	__pmd_val_set(*pmd, PxD_FLAG_PRESENT | PxD_FLAG_VALID | (unsigned long) pg_table);
-
-	/* now change pg_table to kernel virtual addresses */
-
-	pg_table = (pte_t *) __va(pg_table) + start_pte;
-	set_pte(pg_table, __mk_pte(address, PAGE_GATEWAY));
-}
-EXPORT_SYMBOL(map_hpux_gateway_page);
-#endif

From - Thu Nov 08 21:37:15 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: hpux - Remove HPUX syscall numbers
Date: Mon, 16 Feb 2015 22:21:27 +0100
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 5f5c037..55c6486 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -2,480 +2,6 @@
 #define _UAPI_ASM_PARISC_UNISTD_H_
 
 /*
- * This file contains the system call numbers.
- */
-
-/*
- *   HP-UX system calls get their native numbers for binary compatibility.
- */
-
-#define __NR_HPUX_exit                    1
-#define __NR_HPUX_fork                    2
-#define __NR_HPUX_read                    3
-#define __NR_HPUX_write                   4
-#define __NR_HPUX_open                    5
-#define __NR_HPUX_close                   6
-#define __NR_HPUX_wait                    7
-#define __NR_HPUX_creat                   8
-#define __NR_HPUX_link                    9
-#define __NR_HPUX_unlink                 10
-#define __NR_HPUX_execv                  11
-#define __NR_HPUX_chdir                  12
-#define __NR_HPUX_time                   13
-#define __NR_HPUX_mknod                  14
-#define __NR_HPUX_chmod                  15
-#define __NR_HPUX_chown                  16
-#define __NR_HPUX_break                  17
-#define __NR_HPUX_lchmod                 18
-#define __NR_HPUX_lseek                  19
-#define __NR_HPUX_getpid                 20
-#define __NR_HPUX_mount                  21
-#define __NR_HPUX_umount                 22
-#define __NR_HPUX_setuid                 23
-#define __NR_HPUX_getuid                 24
-#define __NR_HPUX_stime                  25
-#define __NR_HPUX_ptrace                 26
-#define __NR_HPUX_alarm                  27
-#define __NR_HPUX_oldfstat               28
-#define __NR_HPUX_pause                  29
-#define __NR_HPUX_utime                  30
-#define __NR_HPUX_stty                   31
-#define __NR_HPUX_gtty                   32
-#define __NR_HPUX_access                 33
-#define __NR_HPUX_nice                   34
-#define __NR_HPUX_ftime                  35
-#define __NR_HPUX_sync                   36
-#define __NR_HPUX_kill                   37
-#define __NR_HPUX_stat                   38
-#define __NR_HPUX_setpgrp3               39
-#define __NR_HPUX_lstat                  40
-#define __NR_HPUX_dup                    41
-#define __NR_HPUX_pipe                   42
-#define __NR_HPUX_times                  43
-#define __NR_HPUX_profil                 44
-#define __NR_HPUX_ki_call                45
-#define __NR_HPUX_setgid                 46
-#define __NR_HPUX_getgid                 47
-#define __NR_HPUX_sigsys                 48
-#define __NR_HPUX_reserved1              49
-#define __NR_HPUX_reserved2              50
-#define __NR_HPUX_acct                   51
-#define __NR_HPUX_set_userthreadid       52
-#define __NR_HPUX_oldlock                53
-#define __NR_HPUX_ioctl                  54
-#define __NR_HPUX_reboot                 55
-#define __NR_HPUX_symlink                56
-#define __NR_HPUX_utssys                 57
-#define __NR_HPUX_readlink               58
-#define __NR_HPUX_execve                 59
-#define __NR_HPUX_umask                  60
-#define __NR_HPUX_chroot                 61
-#define __NR_HPUX_fcntl                  62
-#define __NR_HPUX_ulimit                 63
-#define __NR_HPUX_getpagesize            64
-#define __NR_HPUX_mremap                 65
-#define __NR_HPUX_vfork                  66
-#define __NR_HPUX_vread                  67
-#define __NR_HPUX_vwrite                 68
-#define __NR_HPUX_sbrk                   69
-#define __NR_HPUX_sstk                   70
-#define __NR_HPUX_mmap                   71
-#define __NR_HPUX_vadvise                72
-#define __NR_HPUX_munmap                 73
-#define __NR_HPUX_mprotect               74
-#define __NR_HPUX_madvise                75
-#define __NR_HPUX_vhangup                76
-#define __NR_HPUX_swapoff                77
-#define __NR_HPUX_mincore                78
-#define __NR_HPUX_getgroups              79
-#define __NR_HPUX_setgroups              80
-#define __NR_HPUX_getpgrp2               81
-#define __NR_HPUX_setpgrp2               82
-#define __NR_HPUX_setitimer              83
-#define __NR_HPUX_wait3                  84
-#define __NR_HPUX_swapon                 85
-#define __NR_HPUX_getitimer              86
-#define __NR_HPUX_gethostname42          87
-#define __NR_HPUX_sethostname42          88
-#define __NR_HPUX_getdtablesize          89
-#define __NR_HPUX_dup2                   90
-#define __NR_HPUX_getdopt                91
-#define __NR_HPUX_fstat                  92
-#define __NR_HPUX_select                 93
-#define __NR_HPUX_setdopt                94
-#define __NR_HPUX_fsync                  95
-#define __NR_HPUX_setpriority            96
-#define __NR_HPUX_socket_old             97
-#define __NR_HPUX_connect_old            98
-#define __NR_HPUX_accept_old             99
-#define __NR_HPUX_getpriority           100
-#define __NR_HPUX_send_old              101
-#define __NR_HPUX_recv_old              102
-#define __NR_HPUX_socketaddr_old        103
-#define __NR_HPUX_bind_old              104
-#define __NR_HPUX_setsockopt_old        105
-#define __NR_HPUX_listen_old            106
-#define __NR_HPUX_vtimes_old            107
-#define __NR_HPUX_sigvector             108
-#define __NR_HPUX_sigblock              109
-#define __NR_HPUX_siggetmask            110
-#define __NR_HPUX_sigpause              111
-#define __NR_HPUX_sigstack              112
-#define __NR_HPUX_recvmsg_old           113
-#define __NR_HPUX_sendmsg_old           114
-#define __NR_HPUX_vtrace_old            115
-#define __NR_HPUX_gettimeofday          116
-#define __NR_HPUX_getrusage             117
-#define __NR_HPUX_getsockopt_old        118
-#define __NR_HPUX_resuba_old            119
-#define __NR_HPUX_readv                 120
-#define __NR_HPUX_writev                121
-#define __NR_HPUX_settimeofday          122
-#define __NR_HPUX_fchown                123
-#define __NR_HPUX_fchmod                124
-#define __NR_HPUX_recvfrom_old          125
-#define __NR_HPUX_setresuid             126
-#define __NR_HPUX_setresgid             127
-#define __NR_HPUX_rename                128
-#define __NR_HPUX_truncate              129
-#define __NR_HPUX_ftruncate             130
-#define __NR_HPUX_flock_old             131
-#define __NR_HPUX_sysconf               132
-#define __NR_HPUX_sendto_old            133
-#define __NR_HPUX_shutdown_old          134
-#define __NR_HPUX_socketpair_old        135
-#define __NR_HPUX_mkdir                 136
-#define __NR_HPUX_rmdir                 137
-#define __NR_HPUX_utimes_old            138
-#define __NR_HPUX_sigcleanup_old        139
-#define __NR_HPUX_setcore               140
-#define __NR_HPUX_getpeername_old       141
-#define __NR_HPUX_gethostid             142
-#define __NR_HPUX_sethostid             143
-#define __NR_HPUX_getrlimit             144
-#define __NR_HPUX_setrlimit             145
-#define __NR_HPUX_killpg_old            146
-#define __NR_HPUX_cachectl              147
-#define __NR_HPUX_quotactl              148
-#define __NR_HPUX_get_sysinfo           149
-#define __NR_HPUX_getsockname_old       150
-#define __NR_HPUX_privgrp               151
-#define __NR_HPUX_rtprio                152
-#define __NR_HPUX_plock                 153
-#define __NR_HPUX_reserved3             154
-#define __NR_HPUX_lockf                 155
-#define __NR_HPUX_semget                156
-#define __NR_HPUX_osemctl               157
-#define __NR_HPUX_semop                 158
-#define __NR_HPUX_msgget                159
-#define __NR_HPUX_omsgctl               160
-#define __NR_HPUX_msgsnd                161
-#define __NR_HPUX_msgrecv               162
-#define __NR_HPUX_shmget                163
-#define __NR_HPUX_oshmctl               164
-#define __NR_HPUX_shmat                 165
-#define __NR_HPUX_shmdt                 166
-#define __NR_HPUX_m68020_advise         167
-/* [168,189] are for Discless/DUX */
-#define __NR_HPUX_csp                   168
-#define __NR_HPUX_cluster               169
-#define __NR_HPUX_mkrnod                170
-#define __NR_HPUX_test                  171
-#define __NR_HPUX_unsp_open             172
-#define __NR_HPUX_reserved4             173
-#define __NR_HPUX_getcontext_old        174
-#define __NR_HPUX_osetcontext           175
-#define __NR_HPUX_bigio                 176
-#define __NR_HPUX_pipenode              177
-#define __NR_HPUX_lsync                 178
-#define __NR_HPUX_getmachineid          179
-#define __NR_HPUX_cnodeid               180
-#define __NR_HPUX_cnodes                181
-#define __NR_HPUX_swapclients           182
-#define __NR_HPUX_rmt_process           183
-#define __NR_HPUX_dskless_stats         184
-#define __NR_HPUX_sigprocmask           185
-#define __NR_HPUX_sigpending            186
-#define __NR_HPUX_sigsuspend            187
-#define __NR_HPUX_sigaction             188
-#define __NR_HPUX_reserved5             189
-#define __NR_HPUX_nfssvc                190
-#define __NR_HPUX_getfh                 191
-#define __NR_HPUX_getdomainname         192
-#define __NR_HPUX_setdomainname         193
-#define __NR_HPUX_async_daemon          194
-#define __NR_HPUX_getdirentries         195
-#define __NR_HPUX_statfs                196
-#define __NR_HPUX_fstatfs               197
-#define __NR_HPUX_vfsmount              198
-#define __NR_HPUX_reserved6             199
-#define __NR_HPUX_waitpid               200
-/* 201 - 223 missing */
-#define __NR_HPUX_sigsetreturn          224
-#define __NR_HPUX_sigsetstatemask       225
-/* 226 missing */
-#define __NR_HPUX_cs                    227
-#define __NR_HPUX_cds                   228
-#define __NR_HPUX_set_no_trunc          229
-#define __NR_HPUX_pathconf              230
-#define __NR_HPUX_fpathconf             231
-/* 232, 233 missing */
-#define __NR_HPUX_nfs_fcntl             234
-#define __NR_HPUX_ogetacl               235
-#define __NR_HPUX_ofgetacl              236
-#define __NR_HPUX_osetacl               237
-#define __NR_HPUX_ofsetacl              238
-#define __NR_HPUX_pstat                 239
-#define __NR_HPUX_getaudid              240
-#define __NR_HPUX_setaudid              241
-#define __NR_HPUX_getaudproc            242
-#define __NR_HPUX_setaudproc            243
-#define __NR_HPUX_getevent              244
-#define __NR_HPUX_setevent              245
-#define __NR_HPUX_audwrite              246
-#define __NR_HPUX_audswitch             247
-#define __NR_HPUX_audctl                248
-#define __NR_HPUX_ogetaccess            249
-#define __NR_HPUX_fsctl                 250
-/* 251 - 258 missing */
-#define __NR_HPUX_swapfs                259
-#define __NR_HPUX_fss                   260
-/* 261 - 266 missing */
-#define __NR_HPUX_tsync                 267
-#define __NR_HPUX_getnumfds             268
-#define __NR_HPUX_poll                  269
-#define __NR_HPUX_getmsg                270
-#define __NR_HPUX_putmsg                271
-#define __NR_HPUX_fchdir                272
-#define __NR_HPUX_getmount_cnt          273
-#define __NR_HPUX_getmount_entry        274
-#define __NR_HPUX_accept                275
-#define __NR_HPUX_bind                  276
-#define __NR_HPUX_connect               277
-#define __NR_HPUX_getpeername           278
-#define __NR_HPUX_getsockname           279
-#define __NR_HPUX_getsockopt            280
-#define __NR_HPUX_listen                281
-#define __NR_HPUX_recv                  282
-#define __NR_HPUX_recvfrom              283
-#define __NR_HPUX_recvmsg               284
-#define __NR_HPUX_send                  285
-#define __NR_HPUX_sendmsg               286
-#define __NR_HPUX_sendto                287
-#define __NR_HPUX_setsockopt            288
-#define __NR_HPUX_shutdown              289
-#define __NR_HPUX_socket                290
-#define __NR_HPUX_socketpair            291
-#define __NR_HPUX_proc_open             292
-#define __NR_HPUX_proc_close            293
-#define __NR_HPUX_proc_send             294
-#define __NR_HPUX_proc_recv             295
-#define __NR_HPUX_proc_sendrecv         296
-#define __NR_HPUX_proc_syscall          297
-/* 298 - 311 missing */
-#define __NR_HPUX_semctl                312
-#define __NR_HPUX_msgctl                313
-#define __NR_HPUX_shmctl                314
-#define __NR_HPUX_mpctl                 315
-#define __NR_HPUX_exportfs              316
-#define __NR_HPUX_getpmsg               317
-#define __NR_HPUX_putpmsg               318
-/* 319 missing */
-#define __NR_HPUX_msync                 320
-#define __NR_HPUX_msleep                321
-#define __NR_HPUX_mwakeup               322
-#define __NR_HPUX_msem_init             323
-#define __NR_HPUX_msem_remove           324
-#define __NR_HPUX_adjtime               325
-#define __NR_HPUX_kload                 326
-#define __NR_HPUX_fattach               327
-#define __NR_HPUX_fdetach               328
-#define __NR_HPUX_serialize             329
-#define __NR_HPUX_statvfs               330
-#define __NR_HPUX_fstatvfs              331
-#define __NR_HPUX_lchown                332
-#define __NR_HPUX_getsid                333
-#define __NR_HPUX_sysfs                 334
-/* 335, 336 missing */
-#define __NR_HPUX_sched_setparam        337
-#define __NR_HPUX_sched_getparam        338
-#define __NR_HPUX_sched_setscheduler    339
-#define __NR_HPUX_sched_getscheduler    340
-#define __NR_HPUX_sched_yield           341
-#define __NR_HPUX_sched_get_priority_max 342
-#define __NR_HPUX_sched_get_priority_min 343
-#define __NR_HPUX_sched_rr_get_interval 344
-#define __NR_HPUX_clock_settime         345
-#define __NR_HPUX_clock_gettime         346
-#define __NR_HPUX_clock_getres          347
-#define __NR_HPUX_timer_create          348
-#define __NR_HPUX_timer_delete          349
-#define __NR_HPUX_timer_settime         350
-#define __NR_HPUX_timer_gettime         351
-#define __NR_HPUX_timer_getoverrun      352
-#define __NR_HPUX_nanosleep             353
-#define __NR_HPUX_toolbox               354
-/* 355 missing */
-#define __NR_HPUX_getdents              356
-#define __NR_HPUX_getcontext            357
-#define __NR_HPUX_sysinfo               358
-#define __NR_HPUX_fcntl64               359
-#define __NR_HPUX_ftruncate64           360
-#define __NR_HPUX_fstat64               361
-#define __NR_HPUX_getdirentries64       362
-#define __NR_HPUX_getrlimit64           363
-#define __NR_HPUX_lockf64               364
-#define __NR_HPUX_lseek64               365
-#define __NR_HPUX_lstat64               366
-#define __NR_HPUX_mmap64                367
-#define __NR_HPUX_setrlimit64           368
-#define __NR_HPUX_stat64                369
-#define __NR_HPUX_truncate64            370
-#define __NR_HPUX_ulimit64              371
-#define __NR_HPUX_pread                 372
-#define __NR_HPUX_preadv                373
-#define __NR_HPUX_pwrite                374
-#define __NR_HPUX_pwritev               375
-#define __NR_HPUX_pread64               376
-#define __NR_HPUX_preadv64              377
-#define __NR_HPUX_pwrite64              378
-#define __NR_HPUX_pwritev64             379
-#define __NR_HPUX_setcontext            380
-#define __NR_HPUX_sigaltstack           381
-#define __NR_HPUX_waitid                382
-#define __NR_HPUX_setpgrp               383
-#define __NR_HPUX_recvmsg2              384
-#define __NR_HPUX_sendmsg2              385
-#define __NR_HPUX_socket2               386
-#define __NR_HPUX_socketpair2           387
-#define __NR_HPUX_setregid              388
-#define __NR_HPUX_lwp_create            389
-#define __NR_HPUX_lwp_terminate         390
-#define __NR_HPUX_lwp_wait              391
-#define __NR_HPUX_lwp_suspend           392
-#define __NR_HPUX_lwp_resume            393
-/* 394 missing */
-#define __NR_HPUX_lwp_abort_syscall     395
-#define __NR_HPUX_lwp_info              396
-#define __NR_HPUX_lwp_kill              397
-#define __NR_HPUX_ksleep                398
-#define __NR_HPUX_kwakeup               399
-/* 400 missing */
-#define __NR_HPUX_pstat_getlwp          401
-#define __NR_HPUX_lwp_exit              402
-#define __NR_HPUX_lwp_continue          403
-#define __NR_HPUX_getacl                404
-#define __NR_HPUX_fgetacl               405
-#define __NR_HPUX_setacl                406
-#define __NR_HPUX_fsetacl               407
-#define __NR_HPUX_getaccess             408
-#define __NR_HPUX_lwp_mutex_init        409
-#define __NR_HPUX_lwp_mutex_lock_sys    410
-#define __NR_HPUX_lwp_mutex_unlock      411
-#define __NR_HPUX_lwp_cond_init         412
-#define __NR_HPUX_lwp_cond_signal       413
-#define __NR_HPUX_lwp_cond_broadcast    414
-#define __NR_HPUX_lwp_cond_wait_sys     415
-#define __NR_HPUX_lwp_getscheduler      416
-#define __NR_HPUX_lwp_setscheduler      417
-#define __NR_HPUX_lwp_getstate          418
-#define __NR_HPUX_lwp_setstate          419
-#define __NR_HPUX_lwp_detach            420
-#define __NR_HPUX_mlock                 421
-#define __NR_HPUX_munlock               422
-#define __NR_HPUX_mlockall              423
-#define __NR_HPUX_munlockall            424
-#define __NR_HPUX_shm_open              425
-#define __NR_HPUX_shm_unlink            426
-#define __NR_HPUX_sigqueue              427
-#define __NR_HPUX_sigwaitinfo           428
-#define __NR_HPUX_sigtimedwait          429
-#define __NR_HPUX_sigwait               430
-#define __NR_HPUX_aio_read              431
-#define __NR_HPUX_aio_write             432
-#define __NR_HPUX_lio_listio            433
-#define __NR_HPUX_aio_error             434
-#define __NR_HPUX_aio_return            435
-#define __NR_HPUX_aio_cancel            436
-#define __NR_HPUX_aio_suspend           437
-#define __NR_HPUX_aio_fsync             438
-#define __NR_HPUX_mq_open               439
-#define __NR_HPUX_mq_close              440
-#define __NR_HPUX_mq_unlink             441
-#define __NR_HPUX_mq_send               442
-#define __NR_HPUX_mq_receive            443
-#define __NR_HPUX_mq_notify             444
-#define __NR_HPUX_mq_setattr            445
-#define __NR_HPUX_mq_getattr            446
-#define __NR_HPUX_ksem_open             447
-#define __NR_HPUX_ksem_unlink           448
-#define __NR_HPUX_ksem_close            449
-#define __NR_HPUX_ksem_post             450
-#define __NR_HPUX_ksem_wait             451
-#define __NR_HPUX_ksem_read             452
-#define __NR_HPUX_ksem_trywait          453
-#define __NR_HPUX_lwp_rwlock_init       454
-#define __NR_HPUX_lwp_rwlock_destroy    455
-#define __NR_HPUX_lwp_rwlock_rdlock_sys 456
-#define __NR_HPUX_lwp_rwlock_wrlock_sys 457
-#define __NR_HPUX_lwp_rwlock_tryrdlock  458
-#define __NR_HPUX_lwp_rwlock_trywrlock  459
-#define __NR_HPUX_lwp_rwlock_unlock     460
-#define __NR_HPUX_ttrace                461
-#define __NR_HPUX_ttrace_wait           462
-#define __NR_HPUX_lf_wire_mem           463
-#define __NR_HPUX_lf_unwire_mem         464
-#define __NR_HPUX_lf_send_pin_map       465
-#define __NR_HPUX_lf_free_buf           466
-#define __NR_HPUX_lf_wait_nq            467
-#define __NR_HPUX_lf_wakeup_conn_q      468
-#define __NR_HPUX_lf_unused             469
-#define __NR_HPUX_lwp_sema_init         470
-#define __NR_HPUX_lwp_sema_post         471
-#define __NR_HPUX_lwp_sema_wait         472
-#define __NR_HPUX_lwp_sema_trywait      473
-#define __NR_HPUX_lwp_sema_destroy      474
-#define __NR_HPUX_statvfs64             475
-#define __NR_HPUX_fstatvfs64            476
-#define __NR_HPUX_msh_register          477
-#define __NR_HPUX_ptrace64              478
-#define __NR_HPUX_sendfile              479
-#define __NR_HPUX_sendpath              480
-#define __NR_HPUX_sendfile64            481
-#define __NR_HPUX_sendpath64            482
-#define __NR_HPUX_modload               483
-#define __NR_HPUX_moduload              484
-#define __NR_HPUX_modpath               485
-#define __NR_HPUX_getksym               486
-#define __NR_HPUX_modadm                487
-#define __NR_HPUX_modstat               488
-#define __NR_HPUX_lwp_detached_exit     489
-#define __NR_HPUX_crashconf             490
-#define __NR_HPUX_siginhibit            491
-#define __NR_HPUX_sigenable             492
-#define __NR_HPUX_spuctl                493
-#define __NR_HPUX_zerokernelsum         494
-#define __NR_HPUX_nfs_kstat             495
-#define __NR_HPUX_aio_read64            496
-#define __NR_HPUX_aio_write64           497
-#define __NR_HPUX_aio_error64           498
-#define __NR_HPUX_aio_return64          499
-#define __NR_HPUX_aio_cancel64          500
-#define __NR_HPUX_aio_suspend64         501
-#define __NR_HPUX_aio_fsync64           502
-#define __NR_HPUX_lio_listio64          503
-#define __NR_HPUX_recv2                 504
-#define __NR_HPUX_recvfrom2             505
-#define __NR_HPUX_send2                 506
-#define __NR_HPUX_sendto2               507
-#define __NR_HPUX_acl                   508
-#define __NR_HPUX___cnx_p2p_ctl         509
-#define __NR_HPUX___cnx_gsched_ctl      510
-#define __NR_HPUX___cnx_pmon_ctl        511
-
-#define __NR_HPUX_syscalls		512

From - Thu Nov 08 21:37:15 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: RFC arch/sh/kernel/traps_64.c - unclear if/else construct (hpux
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Date: Mon, 16 Feb 2015 22:24:31 +0100
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To: Nicholas Mc Guire <der.herr@hofr.at>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>
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Hello Nicholas,

On 03.02.2015 10:37, Nicholas Mc Guire wrote:
>   scanning for  if STATEMENT else STATEMENT  triggered here - and it does look
> like it needs a fix-up or at least some comments.
>
> <snip?
> int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
> {
> 	 int fstype;
> 	 ...
> 		  /* String could be altered by userspace after strlen_user() */
> 		  fsname[len - 1] = '\0';
>
> 		  printk(KERN_DEBUG "that is '%s' as (char *)\n", fsname);
> 		  if ( !strcmp(fsname, "hfs") ) {
> 			   fstype = 0;
> 		  } else {
> 			   fstype = 0;
> 		  }
> 		
> 		  kfree(fsname);
>
> 		  printk(KERN_DEBUG "returning fstype=%d\n", fstype);
> 		  return fstype; /* something other than default */
> <snip>
>
>   The if-else here has no effect and the printk will not convey any information
> as its always fstype==0, finally the return statement comment indicates that it
> should not be the default...
>
>   Can't come up with a reasonable cleanup patch here - but this looks like it
> needs a review.

The hpux code is broken anyway.
I'm going to remove it from the tree.

Thanks!

Helge

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Subject: Re: RFC arch/sh/kernel/traps_64.c - unclear if/else construct (hpux
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Hi Helge,

On Mon, 2015-02-16 at 22:24 +0100, Helge Deller wrote:
> The hpux code is broken anyway.
> I'm going to remove it from the tree.

That happened in commit 04c161497716 ("parisc: hpux - Drop support for
HP-UX binaries"), which is included in today's linux-next
(next-20150217). I noticed because a script I use to check linux-next
spotted a problem with it.

That commit removed the Kconfig symbol HPUX. As a result BINFMT_SOM (see
fs/Kconfig.binfmt) can't be set anymore. I assume a patch to remove that
symbol too is also part of that series. Is that correct?


Paul Bolle


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Subject: [PATCH] fs/binfmt_som: Drop kernel support for HP-UX SOM binaries
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Cc: linux-fsdevel@vger.kernel.org, Paul Bolle <pebolle@tiscali.nl>
To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
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The parisc arch has been the only user of HP-UX SOM binaries.

Support for HP-UX executables was never finished and since we now drop support
for the HP-UX compat layer anyway, it does not makes sense to keep the
BINFMT_SOM support.

Cc: linux-fsdevel@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index c055d56..270c481 100644
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -149,13 +149,6 @@ config BINFMT_EM86
 	  later load the module when you want to use a Linux/Intel binary. The
 	  module will be called binfmt_em86. If unsure, say Y.
 
-config BINFMT_SOM
-	tristate "Kernel support for SOM binaries"
-	depends on PARISC && HPUX
-	help
-	  SOM is a binary executable format inherited from HP/UX.  Say
-	  Y here to be able to load and execute SOM binaries directly.
-
 config BINFMT_MISC
 	tristate "Kernel support for MISC binaries"
 	---help---
diff --git a/fs/Makefile b/fs/Makefile
index bedff48..b7e0cfe 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -37,7 +37,6 @@ obj-$(CONFIG_BINFMT_SCRIPT)	+= binfmt_script.o
 obj-$(CONFIG_BINFMT_ELF)	+= binfmt_elf.o
 obj-$(CONFIG_COMPAT_BINFMT_ELF)	+= compat_binfmt_elf.o
 obj-$(CONFIG_BINFMT_ELF_FDPIC)	+= binfmt_elf_fdpic.o
-obj-$(CONFIG_BINFMT_SOM)	+= binfmt_som.o
 obj-$(CONFIG_BINFMT_FLAT)	+= binfmt_flat.o
 
 obj-$(CONFIG_FS_MBCACHE)	+= mbcache.o
diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c
deleted file mode 100644
index 4e00ed6..0000000
--- a/fs/binfmt_som.c
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- * linux/fs/binfmt_som.c
- *
- * These are the functions used to load SOM format executables as used
- * by HP-UX.  
- *
- * Copyright 1999 Matthew Wilcox <willy@bofh.ai>
- * based on binfmt_elf which is
- * Copyright 1993, 1994: Eric Youngdale (ericy@cais.com).
- */
-
-#include <linux/module.h>
-
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/binfmts.h>
-#include <linux/som.h>
-#include <linux/string.h>
-#include <linux/file.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/shm.h>
-#include <linux/personality.h>
-#include <linux/init.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-
-#include <linux/elf.h>
-
-static int load_som_binary(struct linux_binprm * bprm);
-static int load_som_library(struct file *);
-
-/*
- * If we don't support core dumping, then supply a NULL so we
- * don't even try.
- */
-#if 0
-static int som_core_dump(struct coredump_params *cprm);
-#else
-#define som_core_dump	NULL
-#endif
-
-#define SOM_PAGESTART(_v) ((_v) & ~(unsigned long)(SOM_PAGESIZE-1))
-#define SOM_PAGEOFFSET(_v) ((_v) & (SOM_PAGESIZE-1))
-#define SOM_PAGEALIGN(_v) (((_v) + SOM_PAGESIZE - 1) & ~(SOM_PAGESIZE - 1))
-
-static struct linux_binfmt som_format = {
-	.module		= THIS_MODULE,
-	.load_binary	= load_som_binary,
-	.load_shlib	= load_som_library,
-	.core_dump	= som_core_dump,
-	.min_coredump	= SOM_PAGESIZE
-};
-
-/*
- * create_som_tables() parses the env- and arg-strings in new user
- * memory and creates the pointer tables from them, and puts their
- * addresses on the "stack", returning the new stack pointer value.
- */
-static void create_som_tables(struct linux_binprm *bprm)
-{
-	char **argv, **envp;
-	int argc = bprm->argc;
-	int envc = bprm->envc;
-	unsigned long p;
-	unsigned long *sp;
-
-	/* Word-align the stack pointer */
-	sp = (unsigned long *)((bprm->p + 3) & ~3);
-
-	envp = (char **) sp;
-	sp += envc + 1;
-	argv = (char **) sp;
-	sp += argc + 1;
-
-	__put_user((unsigned long) envp,++sp);
-	__put_user((unsigned long) argv,++sp);
-
-	__put_user(argc, ++sp);
-
-	bprm->p = (unsigned long) sp;
-
-	p = current->mm->arg_start;
-	while (argc-- > 0) {
-		__put_user((char *)p,argv++);
-		p += strlen_user((char *)p);
-	}
-	__put_user(NULL, argv);
-	current->mm->arg_end = current->mm->env_start = p;
-	while (envc-- > 0) {
-		__put_user((char *)p,envp++);
-		p += strlen_user((char *)p);
-	}
-	__put_user(NULL, envp);
-	current->mm->env_end = p;
-}
-
-static int check_som_header(struct som_hdr *som_ex)
-{
-	int *buf = (int *)som_ex;
-	int i, ck;
-
-	if (som_ex->system_id != SOM_SID_PARISC_1_0 &&
-	    som_ex->system_id != SOM_SID_PARISC_1_1 &&
-	    som_ex->system_id != SOM_SID_PARISC_2_0)
-		return -ENOEXEC;
-
-	if (som_ex->a_magic != SOM_EXEC_NONSHARE &&
-	    som_ex->a_magic != SOM_EXEC_SHARE &&
-	    som_ex->a_magic != SOM_EXEC_DEMAND)
-		return -ENOEXEC;
-
-	if (som_ex->version_id != SOM_ID_OLD &&
-	    som_ex->version_id != SOM_ID_NEW)
-		return -ENOEXEC;
-
-	ck = 0;
-	for (i=0; i<32; i++)
-		ck ^= buf[i];
-	if (ck != 0)
-		return -ENOEXEC;
-
-	return 0;
-}
-
-static int map_som_binary(struct file *file,
-		const struct som_exec_auxhdr *hpuxhdr)
-{
-	unsigned long code_start, code_size, data_start, data_size;
-	unsigned long bss_start, som_brk;
-	int retval;
-	int prot = PROT_READ | PROT_EXEC;
-	int flags = MAP_FIXED|MAP_PRIVATE|MAP_DENYWRITE|MAP_EXECUTABLE;
-
-	mm_segment_t old_fs = get_fs();
-	set_fs(get_ds());
-
-	code_start = SOM_PAGESTART(hpuxhdr->exec_tmem);
-	code_size = SOM_PAGEALIGN(hpuxhdr->exec_tsize);
-	current->mm->start_code = code_start;
-	current->mm->end_code = code_start + code_size;
-	retval = vm_mmap(file, code_start, code_size, prot,
-			flags, SOM_PAGESTART(hpuxhdr->exec_tfile));
-	if (retval < 0 && retval > -1024)
-		goto out;
-
-	data_start = SOM_PAGESTART(hpuxhdr->exec_dmem);
-	data_size = SOM_PAGEALIGN(hpuxhdr->exec_dsize);
-	current->mm->start_data = data_start;
-	current->mm->end_data = bss_start = data_start + data_size;
-	retval = vm_mmap(file, data_start, data_size,
-			prot | PROT_WRITE, flags,
-			SOM_PAGESTART(hpuxhdr->exec_dfile));
-	if (retval < 0 && retval > -1024)
-		goto out;
-
-	som_brk = bss_start + SOM_PAGEALIGN(hpuxhdr->exec_bsize);
-	current->mm->start_brk = current->mm->brk = som_brk;
-	retval = vm_mmap(NULL, bss_start, som_brk - bss_start,
-			prot | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, 0);
-	if (retval > 0 || retval < -1024)
-		retval = 0;
-out:
-	set_fs(old_fs);
-	return retval;
-}
-
-
-/*
- * These are the functions used to load SOM executables and shared
- * libraries.  There is no binary dependent code anywhere else.
- */
-
-static int
-load_som_binary(struct linux_binprm * bprm)
-{
-	int retval;
-	unsigned int size;
-	unsigned long som_entry;
-	struct som_hdr *som_ex;
-	struct som_exec_auxhdr *hpuxhdr;
-	struct pt_regs *regs = current_pt_regs();
-
-	/* Get the exec-header */
-	som_ex = (struct som_hdr *) bprm->buf;
-
-	retval = check_som_header(som_ex);
-	if (retval != 0)
-		goto out;
-
-	/* Now read in the auxiliary header information */
-
-	retval = -ENOMEM;
-	size = som_ex->aux_header_size;
-	if (size > SOM_PAGESIZE)
-		goto out;
-	hpuxhdr = kmalloc(size, GFP_KERNEL);
-	if (!hpuxhdr)
-		goto out;
-
-	retval = kernel_read(bprm->file, som_ex->aux_header_location,
-			(char *) hpuxhdr, size);
-	if (retval != size) {
-		if (retval >= 0)
-			retval = -EIO;
-		goto out_free;
-	}
-
-	/* Flush all traces of the currently running executable */
-	retval = flush_old_exec(bprm);
-	if (retval)
-		goto out_free;
-
-	/* OK, This is the point of no return */
-	current->personality = PER_HPUX;
-	setup_new_exec(bprm);
-
-	/* Set the task size for HP-UX processes such that
-	 * the gateway page is outside the address space.
-	 * This can be fixed later, but for now, this is much
-	 * easier.
-	 */
-
-	current->thread.task_size = 0xc0000000;
-
-	/* Set map base to allow enough room for hp-ux heap growth */
-
-	current->thread.map_base = 0x80000000;
-
-	retval = map_som_binary(bprm->file, hpuxhdr);
-	if (retval < 0)
-		goto out_free;
-
-	som_entry = hpuxhdr->exec_entry;
-	kfree(hpuxhdr);
-
-	set_binfmt(&som_format);
-	install_exec_creds(bprm);
-	setup_arg_pages(bprm, STACK_TOP, EXSTACK_DEFAULT);
-
-	create_som_tables(bprm);
-
-	current->mm->start_stack = bprm->p;
-
-#if 0
-	printk("(start_brk) %08lx\n" , (unsigned long) current->mm->start_brk);
-	printk("(end_code) %08lx\n" , (unsigned long) current->mm->end_code);
-	printk("(start_code) %08lx\n" , (unsigned long) current->mm->start_code);
-	printk("(end_data) %08lx\n" , (unsigned long) current->mm->end_data);
-	printk("(start_stack) %08lx\n" , (unsigned long) current->mm->start_stack);
-	printk("(brk) %08lx\n" , (unsigned long) current->mm->brk);
-#endif
-
-	map_hpux_gateway_page(current,current->mm);
-
-	start_thread_som(regs, som_entry, bprm->p);
-	return 0;
-
-	/* error cleanup */
-out_free:
-	kfree(hpuxhdr);
-out:
-	return retval;
-}
-
-static int load_som_library(struct file *f)
-{
-/* No lib support in SOM yet.  gizza chance.. */
-	return -ENOEXEC;
-}
-	/* Install the SOM loader.
-	 * N.B. We *rely* on the table being the right size with the
-	 * right number of free slots...
-	 */
-
-static int __init init_som_binfmt(void)
-{
-	register_binfmt(&som_format);
-	return 0;
-}
-
-static void __exit exit_som_binfmt(void)
-{
-	/* Remove the SOM loader. */
-	unregister_binfmt(&som_format);
-}
-
-core_initcall(init_som_binfmt);
-module_exit(exit_som_binfmt);
-
-MODULE_LICENSE("GPL");
diff --git a/include/uapi/linux/som.h b/include/uapi/linux/som.h
deleted file mode 100644
index 166594e..0000000
--- a/include/uapi/linux/som.h
+++ /dev/null
@@ -1,154 +0,0 @@
-#ifndef _LINUX_SOM_H
-#define _LINUX_SOM_H
-
-/* File format definition for SOM executables / shared libraries */
-
-/* we need struct timespec */
-#include <linux/time.h>
-
-#define SOM_PAGESIZE 4096
-
-/* this is the SOM header */
-struct som_hdr {
-	short		system_id;		/* magic number - system */
-	short		a_magic;		/* magic number - file type */
-	unsigned int	version_id;		/* versiod ID: YYMMDDHH */
-	struct timespec	file_time;		/* system clock */
-	unsigned int	entry_space;		/* space for entry point */
-	unsigned int	entry_subspace;		/* subspace for entry point */
-	unsigned int	entry_offset;		/* offset of entry point */
-	unsigned int	aux_header_location;	/* auxiliary header location */
-	unsigned int	aux_header_size;	/* auxiliary header size */
-	unsigned int	som_length;		/* length of entire SOM */
-	unsigned int	presumed_dp;		/* compiler's DP value */
-	unsigned int	space_location;		/* space dictionary location */
-	unsigned int	space_total;		/* number of space entries */
-	unsigned int	subspace_location;	/* subspace entries location */
-	unsigned int	subspace_total;		/* number of subspace entries */
-	unsigned int	loader_fixup_location;	/* MPE/iX loader fixup */
-	unsigned int	loader_fixup_total;	/* number of fixup records */
-	unsigned int	space_strings_location;	/* (sub)space names */
-	unsigned int	space_strings_size;	/* size of strings area */
-	unsigned int	init_array_location;	/* reserved */
-	unsigned int	init_array_total;	/* reserved */
-	unsigned int	compiler_location;	/* module dictionary */
-	unsigned int	compiler_total;		/* number of modules */
-	unsigned int	symbol_location;	/* symbol dictionary */
-	unsigned int	symbol_total;		/* number of symbols */
-	unsigned int	fixup_request_location;	/* fixup requests */
-	unsigned int	fixup_request_total;	/* number of fixup requests */
-	unsigned int	symbol_strings_location;/* module & symbol names area */
-	unsigned int	symbol_strings_size;	/* size of strings area */
-	unsigned int	unloadable_sp_location;	/* unloadable spaces location */
-	unsigned int	unloadable_sp_size;	/* size of data */
-	unsigned int	checksum;
-};
-
-/* values for system_id */
-
-#define SOM_SID_PARISC_1_0	0x020b
-#define SOM_SID_PARISC_1_1	0x0210
-#define SOM_SID_PARISC_2_0	0x0214
-
-/* values for a_magic */
-
-#define SOM_LIB_EXEC		0x0104
-#define SOM_RELOCATABLE		0x0106
-#define SOM_EXEC_NONSHARE	0x0107
-#define SOM_EXEC_SHARE		0x0108
-#define SOM_EXEC_DEMAND		0x010B
-#define SOM_LIB_DYN		0x010D
-#define SOM_LIB_SHARE		0x010E
-#define SOM_LIB_RELOC		0x0619
-
-/* values for version_id.  Decimal not hex, yes.  Grr. */
-
-#define SOM_ID_OLD		85082112
-#define SOM_ID_NEW		87102412
-
-struct aux_id {
-	unsigned int	mandatory :1;	/* the linker must understand this */
-	unsigned int	copy	  :1;	/* Must be copied by the linker */
-	unsigned int	append	  :1;	/* Must be merged by the linker */
-	unsigned int	ignore	  :1;	/* Discard section if unknown */
-	unsigned int	reserved  :12;
-	unsigned int	type	  :16;	/* Header type */
-	unsigned int	length;		/* length of _following_ data */
-};
-
-/* The Exec Auxiliary Header.  Called The HP-UX Header within HP apparently. */
-struct som_exec_auxhdr {
-	struct aux_id	som_auxhdr;
-	int		exec_tsize;	/* Text size in bytes */
-	int		exec_tmem;	/* Address to load text at */
-	int		exec_tfile;	/* Location of text in file */
-	int		exec_dsize;	/* Data size in bytes */
-	int		exec_dmem;	/* Address to load data at */
-	int		exec_dfile;	/* Location of data in file */
-	int		exec_bsize;	/* Uninitialised data (bss) */
-	int		exec_entry;	/* Address to start executing */
-	int		exec_flags;	/* loader flags */
-	int		exec_bfill;	/* initialisation value for bss */
-};
-
-/* Oh, the things people do to avoid casts.  Shame it'll break with gcc's
- * new aliasing rules really.
- */
-union name_pt {
-	char *		n_name;
-	unsigned int	n_strx;
-};
-
-/* The Space Dictionary */
-struct space_dictionary_record {
-	union name_pt	name;			/* index to subspace name */
-	unsigned int	is_loadable	:1;	/* loadable */
-	unsigned int	is_defined	:1;	/* defined within file */
-	unsigned int	is_private	:1;	/* not sharable */
-	unsigned int	has_intermediate_code :1; /* contains intermediate code */
-	unsigned int	is_tspecific	:1;	/* thread specific */
-	unsigned int	reserved	:11;	/* for future expansion */
-	unsigned int	sort_key	:8;	/* for linker */
-	unsigned int	reserved2	:8;	/* for future expansion */
-
-	int		space_number;		/* index */
-	int		subspace_index;		/* index into subspace dict */
-	unsigned int	subspace_quantity;	/* number of subspaces */
-	int		loader_fix_index;	/* for loader */
-	unsigned int	loader_fix_quantity;	/* for loader */
-	int		init_pointer_index;	/* data pointer array index */
-	unsigned int	init_pointer_quantity;	/* number of data pointers */
-};
-
-/* The Subspace Dictionary */
-struct subspace_dictionary_record {
-	int		space_index;
-	unsigned int	access_control_bits :7;
-	unsigned int	memory_resident	:1;
-	unsigned int	dup_common	:1;
-	unsigned int	is_common	:1;
-	unsigned int	quadrant	:2;
-	unsigned int	initially_frozen :1;
-	unsigned int	is_first	:1;
-	unsigned int	code_only	:1;
-	unsigned int	sort_key	:8;
-	unsigned int	replicate_init	:1;
-	unsigned int	continuation	:1;
-	unsigned int	is_tspecific	:1;
-	unsigned int	is_comdat	:1;
-	unsigned int	reserved	:4;
-
-	int		file_loc_init_value;
-	unsigned int	initialization_length;
-	unsigned int	subspace_start;
-	unsigned int	subspace_length;
-
-	unsigned int	reserved2	:5;
-	unsigned int	alignment	:27;
-
-	union name_pt	name;
-	int		fixup_request_index;
-	unsigned int	fixup_request_quantity;
-};

From - Thu Nov 08 21:37:15 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: RFC arch/sh/kernel/traps_64.c - unclear if/else construct (hpux
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H Paul,

On 17.02.2015 09:49, Paul Bolle wrote:
> On Mon, 2015-02-16 at 22:24 +0100, Helge Deller wrote:
>> The hpux code is broken anyway.
>> I'm going to remove it from the tree.
>
> That happened in commit 04c161497716 ("parisc: hpux - Drop support for
> HP-UX binaries"), which is included in today's linux-next
> (next-20150217).

Yes.

> That commit removed the Kconfig symbol HPUX. As a result BINFMT_SOM (see
> fs/Kconfig.binfmt) can't be set anymore. I assume a patch to remove that
> symbol too is also part of that series. Is that correct?

I missed it, but just sent out a patch to remove BINFMT_SOM too.
It will be in the next linux-next tree via
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/log/?h=for-next

Helge

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From - Thu Nov 08 21:37:16 2018
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
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Hi Linus,

please the latest patches and fixes for the parisc architecture for kernel 3.20/4.0 from 

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-3.20-1

The major change in here is the removal of the old HP-UX compat code
which should have made it possible to load and execute 32-bit HP-UX
binaries on PA-RISC Linux. Since it was never functional and since
nobody cares about old 32-bit HPUX binaries any longer, it's now time to
free up 3200 lines of kernel code (CONFIG_HPUX and CONFIG_BINFMT_SOM).

Other than that we wire up the execveat() syscall, fix sparse errors and have
some whitespace cleanups.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (8):
      parisc: Wire up execveat syscall
      parisc: Add error checks when building up signal trampoline handler
      parisc: hpux - Drop support for HP-UX binaries
      parisc: hpux - Do not compile hpux subdirectory
      parisc: hpux - Delete files in hpux subdirectory
      parisc: hpux - Remove hpux gateway page
      parisc: hpux - Remove HPUX syscall numbers
      fs/binfmt_som: Drop kernel support for HP-UX SOM binaries

Michael S. Tsirkin (2):
      parisc/uaccess: fix sparse errors
      parisc: macro whitespace fixes

Rickard Strandqvist (1):
      parisc: Remove unused function

 arch/parisc/Kconfig                   |   4 -
 arch/parisc/Makefile                  |   1 -
 arch/parisc/hpux/Makefile             |   5 -
 arch/parisc/hpux/entry_hpux.S         | 546 -------------------
 arch/parisc/hpux/fs.c                 | 192 -------
 arch/parisc/hpux/gate.S               | 107 ----
 arch/parisc/hpux/ioctl.c              |  72 ---
 arch/parisc/hpux/sys_hpux.c           | 963 ----------------------------------
 arch/parisc/hpux/wrappers.S           | 250 ---------
 arch/parisc/include/asm/processor.h   |   2 -
 arch/parisc/include/asm/uaccess.h     | 116 ++--
 arch/parisc/include/uapi/asm/unistd.h | 481 +----------------
 arch/parisc/kernel/entry.S            |  20 -
 arch/parisc/kernel/process.c          |  15 +-
 arch/parisc/kernel/signal.c           |  32 +-
 arch/parisc/kernel/smp.c              |   3 -
 arch/parisc/kernel/syscall_table.S    |   1 +
 arch/parisc/mm/init.c                 |  72 ---
 fs/Kconfig.binfmt                     |   7 -
 fs/Makefile                           |   1 -
 fs/binfmt_som.c                       | 299 -----------
 include/uapi/linux/Kbuild             |   1 -
 include/uapi/linux/som.h              | 154 ------
 23 files changed, 80 insertions(+), 3264 deletions(-)
 delete mode 100644 arch/parisc/hpux/Makefile
 delete mode 100644 arch/parisc/hpux/entry_hpux.S
 delete mode 100644 arch/parisc/hpux/fs.c
 delete mode 100644 arch/parisc/hpux/gate.S
 delete mode 100644 arch/parisc/hpux/ioctl.c
 delete mode 100644 arch/parisc/hpux/sys_hpux.c
 delete mode 100644 arch/parisc/hpux/wrappers.S
 delete mode 100644 fs/binfmt_som.c
 delete mode 100644 include/uapi/linux/som.h
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
> In current eglibc it's set to 0x00400000
> That's what my eglibc-patch changes...
> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).

Anyone object to me fixing this upstream by making SHMLBA match the kernel?

I plan to use a fixed value of 4096, since I never expect hppa
userspace to have to care (even if the kernel uses superpages).

Please correct me if I'm wrong.

Cheers,
Carlos.
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From - Thu Nov 08 21:37:16 2018
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On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:

> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
>> In current eglibc it's set to 0x00400000
>> That's what my eglibc-patch changes...
>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
> 
> Anyone object to me fixing this upstream by making SHMLBA match the kernel?
> 
> I plan to use a fixed value of 4096, since I never expect hppa
> userspace to have to care (even if the kernel uses superpages).

We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
Is there a performance advantage in using 4096?

> 
> Please correct me if I'm wrong.


At one time, we thought this value needed to be 4 MB.  Helge was working on improving the mmap
allocation scheme but this work stalled after some improvement.  I can't remember the issues and how
they relate to SHMLBA.

Dave
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John David Anglin	dave.anglin@bell.net



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On 2015-02-21, at 3:31 PM, John David Anglin wrote:

> On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:
> 
>> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
>>> In current eglibc it's set to 0x00400000
>>> That's what my eglibc-patch changes...
>>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
>> 
>> Anyone object to me fixing this upstream by making SHMLBA match the kernel?
>> 
>> I plan to use a fixed value of 4096, since I never expect hppa
>> userspace to have to care (even if the kernel uses superpages).
> 
> We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
> Is there a performance advantage in using 4096?
> 
>> 
>> Please correct me if I'm wrong.
> 
> 
> At one time, we thought this value needed to be 4 MB.  Helge was working on improving the mmap
> allocation scheme but this work stalled after some improvement.  I can't remember the issues and how
> they relate to SHMLBA.


Actually, the number was 4 Mb (bit).

Dave
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John David Anglin	dave.anglin@bell.net



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On 21.02.2015 21:31, John David Anglin wrote:
> On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:
>
>> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
>>> In current eglibc it's set to 0x00400000
>>> That's what my eglibc-patch changes...
>>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
>>
>> Anyone object to me fixing this upstream by making SHMLBA match the kernel?

I think to remember that that would be best.
Didn't I pushed this (SHMLBA=4k) to eglibc?

>> I plan to use a fixed value of 4096, since I never expect hppa
>> userspace to have to care (even if the kernel uses superpages).

Yes.

> We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
> Is there a performance advantage in using 4096?

Yes, we have:
Index: eglibc-2.18/ports/sysdeps/unix/sysv/linux/hppa/bits/shm.h
===================================================================
--- eglibc-2.18.orig/ports/sysdeps/unix/sysv/linux/hppa/bits/shm.h      2013-01-09 19:28:48.000000000 -0500
+++ eglibc-2.18/ports/sysdeps/unix/sysv/linux/hppa/bits/shm.h   2014-04-09 21:08:06.516202583 -0400
@@ -36,7 +36,7 @@
  #define SHM_UNLOCK     12              /* unlock segment (root only) */

  /* Segment low boundary address multiple.  */
-#define SHMLBA 0x00400000              /* address needs to be 4 Mb aligned */
+#define SHMLBA         (__getpagesize ())

I prefer this for glibc as well.

> At one time, we thought this value needed to be 4 MB.  Helge was working on improving the mmap
> allocation scheme but this work stalled after some improvement.

They are just on hold, but not that needed any more after we have the flexmap implementation.

> I can't remember the issues and how they relate to SHMLBA.

I would need to recall too. IIRC, SHMLBA and the 4MB cache alignments do not really relate to each
other. Userspace should just mmap(X) where X is aligned to SHMLBA. The mmap will then
mmap to the next possible address (starting somewhere above/equal to X) and still fulfilling the 4MB cache
alignment (if it's a shared mmap).

Helge
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped
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On Sat, 2015-02-21 at 15:40 -0500, John David Anglin wrote:
> On 2015-02-21, at 3:31 PM, John David Anglin wrote:
> 
> > On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:
> > 
> >> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
> >>> In current eglibc it's set to 0x00400000
> >>> That's what my eglibc-patch changes...
> >>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
> >> 
> >> Anyone object to me fixing this upstream by making SHMLBA match the kernel?
> >> 
> >> I plan to use a fixed value of 4096, since I never expect hppa
> >> userspace to have to care (even if the kernel uses superpages).
> > 
> > We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
> > Is there a performance advantage in using 4096?
> > 
> >> 
> >> Please correct me if I'm wrong.
> > 
> > 
> > At one time, we thought this value needed to be 4 MB.  Helge was
> working on improving the mmap
> > allocation scheme but this work stalled after some improvement.  I
> can't remember the issues and how
> > they relate to SHMLBA.
> 
> 
> Actually, the number was 4 Mb (bit).

No, it was 4MB.  That's the cache equivalency stride on PA processors
because we have a VIPT cache.  The architectural requirement according
to the dreaded appendix F is 16MB but we were assured by the PA
architects that it was 4 because they never planned producing processors
that would require 16.  The actual meaning is it's the number of bits of
the virtual address that are significant in the virtual index.

The point of SHMLBA is that if the same physical page is mapped into two
different virtual addresses but the two addresses are equal, modulo
SHMLBA, then the L1 cache sees the equivalency and you can't get
inequivalent cache aliases for the page (two writes to the two different
addresses producing two separately dirty cache lines which can never
resolve).  This means that the virtual addresses of all shared mappings
have to be equal modulo SHMLBA for the caches not to alias.

James


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On 22.02.2015 00:09, James Bottomley wrote:
> On Sat, 2015-02-21 at 15:40 -0500, John David Anglin wrote:
>> On 2015-02-21, at 3:31 PM, John David Anglin wrote:
>>
>>> On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:
>>>
>>>> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
>>>>> In current eglibc it's set to 0x00400000
>>>>> That's what my eglibc-patch changes...
>>>>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
>>>>
>>>> Anyone object to me fixing this upstream by making SHMLBA match the kernel?
>>>>
>>>> I plan to use a fixed value of 4096, since I never expect hppa
>>>> userspace to have to care (even if the kernel uses superpages).
>>>
>>> We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
>>> Is there a performance advantage in using 4096?
>>>
>>>>
>>>> Please correct me if I'm wrong.
>>>
>>>
>>> At one time, we thought this value needed to be 4 MB.  Helge was
>> working on improving the mmap
>>> allocation scheme but this work stalled after some improvement.  I
>> can't remember the issues and how
>>> they relate to SHMLBA.
>>
>>
>> Actually, the number was 4 Mb (bit).
>
> No, it was 4MB.  That's the cache equivalency stride on PA processors
> because we have a VIPT cache.  The architectural requirement according
> to the dreaded appendix F is 16MB but we were assured by the PA
> architects that it was 4 because they never planned producing processors
> that would require 16.  The actual meaning is it's the number of bits of
> the virtual address that are significant in the virtual index.
>

Your following statement:

> The point of SHMLBA is that if the same physical page is mapped into two
> different virtual addresses but the two addresses are equal, modulo
> SHMLBA, then the L1 cache sees the equivalency and you can't get
> inequivalent cache aliases for the page (two writes to the two different
> addresses producing two separately dirty cache lines which can never
> resolve).  This means that the virtual addresses of all shared mappings
> have to be equal modulo SHMLBA for the caches not to alias.

With this you define SHMLBA to be the representative number which defines
what the current cache equivalency stride of the kernel is, *and* which then can
be used by userspace. I think this is a misinterpretation of SHMLBA (or at
least a parisc-specific interpretation of SHMLBA), which is not like how it
is used on other architectures with similar limitations.
Userspace should not know the kernel/architecture specifics. Instead they
should try to mmap() memory somewhere (e.g. 4KB aligned) and if they need shared mappings then
kernel/glibc will return a corrected mapping address (modulo 4MB).
I think this is important, since most userspace programs usually try to mmap at
a multiple of SHMLBA with which we then run very soon out of userspace (with SHMLBA=4MB).
This has been the issue with localedef in glibc (a strange coding which tries
to be platform-specific with mmap-calculation). Because of that in the end
it turned out to be best for parisc to have SHMLBA defined to 4kb (and not 4MB).

So, your statement above is correct, I would just not use "SHMLBA" in this term,
but maybe "KERNEL_SHMLBA" instead.

Helge
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped
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Cc: John David Anglin <dave.anglin@bell.net>,
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To: Helge Deller <deller@gmx.de>
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On Sun, 2015-02-22 at 00:26 +0100, Helge Deller wrote:
> On 22.02.2015 00:09, James Bottomley wrote:
> > On Sat, 2015-02-21 at 15:40 -0500, John David Anglin wrote:
> >> On 2015-02-21, at 3:31 PM, John David Anglin wrote:
> >>
> >>> On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:
> >>>
> >>>> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
> >>>>> In current eglibc it's set to 0x00400000
> >>>>> That's what my eglibc-patch changes...
> >>>>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
> >>>>
> >>>> Anyone object to me fixing this upstream by making SHMLBA match the kernel?
> >>>>
> >>>> I plan to use a fixed value of 4096, since I never expect hppa
> >>>> userspace to have to care (even if the kernel uses superpages).
> >>>
> >>> We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
> >>> Is there a performance advantage in using 4096?
> >>>
> >>>>
> >>>> Please correct me if I'm wrong.
> >>>
> >>>
> >>> At one time, we thought this value needed to be 4 MB.  Helge was
> >> working on improving the mmap
> >>> allocation scheme but this work stalled after some improvement.  I
> >> can't remember the issues and how
> >>> they relate to SHMLBA.
> >>
> >>
> >> Actually, the number was 4 Mb (bit).
> >
> > No, it was 4MB.  That's the cache equivalency stride on PA processors
> > because we have a VIPT cache.  The architectural requirement according
> > to the dreaded appendix F is 16MB but we were assured by the PA
> > architects that it was 4 because they never planned producing processors
> > that would require 16.  The actual meaning is it's the number of bits of
> > the virtual address that are significant in the virtual index.
> >
> 
> Your following statement:
> 
> > The point of SHMLBA is that if the same physical page is mapped into two
> > different virtual addresses but the two addresses are equal, modulo
> > SHMLBA, then the L1 cache sees the equivalency and you can't get
> > inequivalent cache aliases for the page (two writes to the two different
> > addresses producing two separately dirty cache lines which can never
> > resolve).  This means that the virtual addresses of all shared mappings
> > have to be equal modulo SHMLBA for the caches not to alias.
> 
> With this you define SHMLBA to be the representative number which defines
> what the current cache equivalency stride of the kernel is, *and* which then can
> be used by userspace. I think this is a misinterpretation of SHMLBA (or at
> least a parisc-specific interpretation of SHMLBA), which is not like how it
> is used on other architectures with similar limitations.
> Userspace should not know the kernel/architecture specifics. Instead they
> should try to mmap() memory somewhere (e.g. 4KB aligned) and if they need shared mappings then
> kernel/glibc will return a corrected mapping address (modulo 4MB).
> I think this is important, since most userspace programs usually try to mmap at
> a multiple of SHMLBA with which we then run very soon out of userspace (with SHMLBA=4MB).
> This has been the issue with localedef in glibc (a strange coding which tries
> to be platform-specific with mmap-calculation). Because of that in the end
> it turned out to be best for parisc to have SHMLBA defined to 4kb (and not 4MB).
> 
> So, your statement above is correct, I would just not use "SHMLBA" in this term,
> but maybe "KERNEL_SHMLBA" instead.

Um, no, SHMLBA comes from the SYS-V IPC primitives.  They were stupid
enough to allow the user pick the address of the region of shared
memory, so the user had to know these architectural details and SHMLBA
encodes them (man shmat will give you the gory details).

For mmap, we can mostly do the right thing in the kernel, except for
MAP_FIXED, where the user has to know what they're doing again.

For the cases the user thinks they know best, we can't avoid giving out
the knowledge somehow, because inequivalent aliases in writeable
mappings will HPMC a system.  We could be more relaxed about
inequivalent aliases in read only mappings (say shared libraries), but
the consequence of that is an explosion in the use of cache space, so we
would want some libraries (like glibc) with many shared copies to obey
SHMLBA.

James


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Subject: [PATCH 00/27] Convert seq_<foo> output calls to return void
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As Al Viro said:

we are getting well-meaning folks who try to check that return value,
again and again, getting it wrong every time.   Typical idiocies:
        * return some kind of error out of ->show() on overflows.  Pointless
*and* wrong - only hard errors (== fail read(2) with that) should be
reported that way; the caller does detect overflow and retires with bigger
buffer just fine.
        * keep checking it after every sodding call of seq_...(), screwing
the cleanups up more often than not.  Pointless, unless you are doing some
seriously expensive calculations to produce something you are going to print.
seq_...() are no-ops in case when overflow has already happened.

seq_has_overflowed() is only for situations when you really want to skip
a serious amount of work generating the data that would end up being
discarded and recalculated again when the caller grabs a bigger buffer and
calls you again.  And more often than not it's an indication of ->show()
trying to do the work of iterator - e.g. when you have single_open() with
->show() printing the entire hash table of some sort all in one record.

Most of the time checking return value of seq_...() is better replaced with
not doing that.  And "must check return value and Do Something(tm)" is too
strong habit for enough people to cause recurring trouble.

Joe Perches (27):
  staging: lustre: Convert "return seq_printf(...)" uses
  staging: lustre: Convert seq_ hash functions to return void
  staging: lustre: Convert uses of "int rc = seq_printf(...)"
  staging: lustre: Convert remaining uses of "= seq_printf(...)"
  x86: mtrr: if: Remove use of seq_printf return value
  power: wakeup: Remove use of seq_printf return value
  ipmi: Remove use of seq_printf return value
  rtc: Remove use of seq_printf return value
  ipc: Remove use of seq_printf return value
  pxa27x_udc: Remove use of seq_printf return value
  microblaze: mb: Remove use of seq_printf return value
  nios2: cpuinfo: Remove use of seq_printf return value
  ARM: plat-pxa: Remove use of seq_printf return value
  openrisc: Remove use of seq_printf return value
  cris: Remove use of seq_printf return value
  mfd: ab8500-debugfs: Remove use of seq_printf return value
  staging: i2o: Remove use of seq_printf return value
  staging: rtl8192x: Remove use of seq_printf return value
  s390: Remove use of seq_printf return value
  i8k: Remove use of seq_printf return value
  watchdog: bcm281xx: Remove use of seq_printf return value
  proc: Remove use of seq_printf return value
  cgroup: Remove use of seq_printf return value
  tracing: Remove use of seq_printf return value
  lru_cache: Remove use of seq_printf return value
  parisc: Remove use of seq_printf return value
  regulator: dbx500: Remove use of seq_puts/seq_printf return value

 arch/arm/plat-pxa/dma.c                            | 111 ++++++------
 arch/cris/arch-v10/kernel/setup.c                  |  58 +++---
 arch/cris/arch-v32/kernel/setup.c                  |  62 +++----
 arch/microblaze/kernel/cpu/mb.c                    | 149 ++++++++--------
 arch/nios2/kernel/cpuinfo.c                        |  77 ++++----
 arch/openrisc/kernel/setup.c                       |  50 +++---
 arch/s390/pci/pci_debug.c                          |   6 +-
 arch/x86/kernel/cpu/mtrr/if.c                      |  12 +-
 drivers/base/power/wakeup.c                        |  16 +-
 drivers/char/i8k.c                                 |  16 +-
 drivers/char/ipmi/ipmi_msghandler.c                |  12 +-
 drivers/char/ipmi/ipmi_si_intf.c                   |  26 +--
 drivers/char/ipmi/ipmi_ssif.c                      |   4 +-
 drivers/mfd/ab8500-debugfs.c                       | 196 +++++++++++++--------
 drivers/parisc/ccio-dma.c                          |  54 +++---
 drivers/parisc/sba_iommu.c                         |  86 +++++----
 drivers/regulator/dbx500-prcmu.c                   |  32 +---
 drivers/rtc/rtc-cmos.c                             |  36 ++--
 drivers/rtc/rtc-ds1305.c                           |   6 +-
 drivers/rtc/rtc-mrst.c                             |  16 +-
 drivers/rtc/rtc-tegra.c                            |   4 +-
 drivers/s390/cio/blacklist.c                       |  12 +-
 drivers/staging/i2o/i2o_proc.c                     |  18 +-
 .../lustre/include/linux/libcfs/libcfs_hash.h      |   4 +-
 drivers/staging/lustre/lustre/fid/lproc_fid.c      |  23 ++-
 drivers/staging/lustre/lustre/libcfs/hash.c        |  13 +-
 drivers/staging/lustre/lustre/llite/lproc_llite.c  | 117 ++++++------
 drivers/staging/lustre/lustre/lmv/lproc_lmv.c      |  18 +-
 drivers/staging/lustre/lustre/lov/lproc_lov.c      |  30 ++--
 drivers/staging/lustre/lustre/mdc/lproc_mdc.c      |   6 +-
 .../lustre/lustre/obdclass/linux/linux-module.c    |  38 ++--
 .../lustre/lustre/obdclass/lprocfs_status.c        | 108 ++++++------
 drivers/staging/lustre/lustre/obdclass/lu_object.c |  25 +--
 drivers/staging/lustre/lustre/osc/lproc_osc.c      |  67 +++----
 .../staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c    |  25 +--
 drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c    |  82 +++++----
 drivers/staging/rtl8192e/rtllib_module.c           |   4 +-
 .../staging/rtl8192u/ieee80211/ieee80211_module.c  |   4 +-
 drivers/usb/gadget/udc/pxa27x_udc.c                | 132 +++++++-------
 drivers/watchdog/bcm_kona_wdt.c                    |  27 +--
 fs/proc/array.c                                    |   4 +-
 fs/proc/base.c                                     |  82 +++++----
 ipc/msg.c                                          |  34 ++--
 ipc/sem.c                                          |  26 +--
 ipc/shm.c                                          |  42 ++---
 ipc/util.c                                         |   6 +-
 kernel/cgroup.c                                    |   4 +-
 kernel/trace/trace_stack.c                         |   4 +-
 lib/lru_cache.c                                    |   9 +-
 49 files changed, 1050 insertions(+), 943 deletions(-)

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The seq_printf return value, because it's frequently misused,
will eventually be converted to void.

See: commit 1f33c41c03da ("seq_file: Rename seq_overflow() to
     seq_has_overflowed() and make public")

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/parisc/ccio-dma.c  | 54 ++++++++++++++---------------
 drivers/parisc/sba_iommu.c | 86 ++++++++++++++++++++++------------------------
 2 files changed, 68 insertions(+), 72 deletions(-)

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 8b490d7..6bc1680 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1021,7 +1021,6 @@ static struct hppa_dma_ops ccio_ops = {
 #ifdef CONFIG_PROC_FS
 static int ccio_proc_info(struct seq_file *m, void *p)
 {
-	int len = 0;
 	struct ioc *ioc = ioc_list;
 
 	while (ioc != NULL) {
@@ -1031,22 +1030,22 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 		int j;
 #endif
 
-		len += seq_printf(m, "%s\n", ioc->name);
+		seq_printf(m, "%s\n", ioc->name);
 		
-		len += seq_printf(m, "Cujo 2.0 bug    : %s\n",
-				  (ioc->cujo20_bug ? "yes" : "no"));
+		seq_printf(m, "Cujo 2.0 bug    : %s\n",
+			   (ioc->cujo20_bug ? "yes" : "no"));
 		
-		len += seq_printf(m, "IO PDIR size    : %d bytes (%d entries)\n",
-			       total_pages * 8, total_pages);
+		seq_printf(m, "IO PDIR size    : %d bytes (%d entries)\n",
+			   total_pages * 8, total_pages);
 
 #ifdef CCIO_COLLECT_STATS
-		len += seq_printf(m, "IO PDIR entries : %ld free  %ld used (%d%%)\n",
-				  total_pages - ioc->used_pages, ioc->used_pages,
-				  (int)(ioc->used_pages * 100 / total_pages));
+		seq_printf(m, "IO PDIR entries : %ld free  %ld used (%d%%)\n",
+			   total_pages - ioc->used_pages, ioc->used_pages,
+			   (int)(ioc->used_pages * 100 / total_pages));
 #endif
 
-		len += seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n", 
-				  ioc->res_size, total_pages);
+		seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n",
+			   ioc->res_size, total_pages);
 
 #ifdef CCIO_COLLECT_STATS
 		min = max = ioc->avg_search[0];
@@ -1058,26 +1057,26 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 				min = ioc->avg_search[j];
 		}
 		avg /= CCIO_SEARCH_SAMPLE;
-		len += seq_printf(m, "  Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
-				  min, avg, max);
+		seq_printf(m, "  Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
+			   min, avg, max);
 
-		len += seq_printf(m, "pci_map_single(): %8ld calls  %8ld pages (avg %d/1000)\n",
-				  ioc->msingle_calls, ioc->msingle_pages,
-				  (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
+		seq_printf(m, "pci_map_single(): %8ld calls  %8ld pages (avg %d/1000)\n",
+			   ioc->msingle_calls, ioc->msingle_pages,
+			   (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
 
 		/* KLUGE - unmap_sg calls unmap_single for each mapped page */
 		min = ioc->usingle_calls - ioc->usg_calls;
 		max = ioc->usingle_pages - ioc->usg_pages;
-		len += seq_printf(m, "pci_unmap_single: %8ld calls  %8ld pages (avg %d/1000)\n",
-				  min, max, (int)((max * 1000)/min));
+		seq_printf(m, "pci_unmap_single: %8ld calls  %8ld pages (avg %d/1000)\n",
+			   min, max, (int)((max * 1000)/min));
  
-		len += seq_printf(m, "pci_map_sg()    : %8ld calls  %8ld pages (avg %d/1000)\n",
-				  ioc->msg_calls, ioc->msg_pages,
-				  (int)((ioc->msg_pages * 1000)/ioc->msg_calls));
+		seq_printf(m, "pci_map_sg()    : %8ld calls  %8ld pages (avg %d/1000)\n",
+			   ioc->msg_calls, ioc->msg_pages,
+			   (int)((ioc->msg_pages * 1000)/ioc->msg_calls));
 
-		len += seq_printf(m, "pci_unmap_sg()  : %8ld calls  %8ld pages (avg %d/1000)\n\n\n",
-				  ioc->usg_calls, ioc->usg_pages,
-				  (int)((ioc->usg_pages * 1000)/ioc->usg_calls));
+		seq_printf(m, "pci_unmap_sg()  : %8ld calls  %8ld pages (avg %d/1000)\n\n\n",
+			   ioc->usg_calls, ioc->usg_pages,
+			   (int)((ioc->usg_pages * 1000)/ioc->usg_calls));
 #endif	/* CCIO_COLLECT_STATS */
 
 		ioc = ioc->next;
@@ -1101,7 +1100,6 @@ static const struct file_operations ccio_proc_info_fops = {
 
 static int ccio_proc_bitmap_info(struct seq_file *m, void *p)
 {
-	int len = 0;
 	struct ioc *ioc = ioc_list;
 
 	while (ioc != NULL) {
@@ -1110,11 +1108,11 @@ static int ccio_proc_bitmap_info(struct seq_file *m, void *p)
 
 		for (j = 0; j < (ioc->res_size / sizeof(u32)); j++) {
 			if ((j & 7) == 0)
-				len += seq_puts(m, "\n   ");
-			len += seq_printf(m, "%08x", *res_ptr);
+				seq_puts(m, "\n   ");
+			seq_printf(m, "%08x", *res_ptr);
 			res_ptr++;
 		}
-		len += seq_puts(m, "\n\n");
+		seq_puts(m, "\n\n");
 		ioc = ioc->next;
 		break; /* XXX - remove me */
 	}
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 1ff1b67..f074712 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1774,37 +1774,35 @@ static int sba_proc_info(struct seq_file *m, void *p)
 #ifdef SBA_COLLECT_STATS
 	unsigned long avg = 0, min, max;
 #endif
-	int i, len = 0;
-
-	len += seq_printf(m, "%s rev %d.%d\n",
-		sba_dev->name,
-		(sba_dev->hw_rev & 0x7) + 1,
-		(sba_dev->hw_rev & 0x18) >> 3
-		);
-	len += seq_printf(m, "IO PDIR size    : %d bytes (%d entries)\n",
-		(int) ((ioc->res_size << 3) * sizeof(u64)), /* 8 bits/byte */
-		total_pages);
-
-	len += seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n", 
-		ioc->res_size, ioc->res_size << 3);   /* 8 bits per byte */
-
-	len += seq_printf(m, "LMMIO_BASE/MASK/ROUTE %08x %08x %08x\n",
-		READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_BASE),
-		READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_MASK),
-		READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_ROUTE)
-		);
+	int i;
+
+	seq_printf(m, "%s rev %d.%d\n",
+		   sba_dev->name,
+		   (sba_dev->hw_rev & 0x7) + 1,
+		   (sba_dev->hw_rev & 0x18) >> 3);
+	seq_printf(m, "IO PDIR size    : %d bytes (%d entries)\n",
+		   (int)((ioc->res_size << 3) * sizeof(u64)), /* 8 bits/byte */
+		   total_pages);
+
+	seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n",
+		   ioc->res_size, ioc->res_size << 3);   /* 8 bits per byte */
+
+	seq_printf(m, "LMMIO_BASE/MASK/ROUTE %08x %08x %08x\n",
+		   READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_BASE),
+		   READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_MASK),
+		   READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_ROUTE));
 
 	for (i=0; i<4; i++)
-		len += seq_printf(m, "DIR%d_BASE/MASK/ROUTE %08x %08x %08x\n", i,
-			READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_BASE  + i*0x18),
-			READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_MASK  + i*0x18),
-			READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_ROUTE + i*0x18)
-		);
+		seq_printf(m, "DIR%d_BASE/MASK/ROUTE %08x %08x %08x\n",
+			   i,
+			   READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_BASE  + i*0x18),
+			   READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_MASK  + i*0x18),
+			   READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_ROUTE + i*0x18));
 
 #ifdef SBA_COLLECT_STATS
-	len += seq_printf(m, "IO PDIR entries : %ld free  %ld used (%d%%)\n",
-		total_pages - ioc->used_pages, ioc->used_pages,
-		(int) (ioc->used_pages * 100 / total_pages));
+	seq_printf(m, "IO PDIR entries : %ld free  %ld used (%d%%)\n",
+		   total_pages - ioc->used_pages, ioc->used_pages,
+		   (int)(ioc->used_pages * 100 / total_pages));
 
 	min = max = ioc->avg_search[0];
 	for (i = 0; i < SBA_SEARCH_SAMPLE; i++) {
@@ -1813,26 +1811,26 @@ static int sba_proc_info(struct seq_file *m, void *p)
 		if (ioc->avg_search[i] < min) min = ioc->avg_search[i];
 	}
 	avg /= SBA_SEARCH_SAMPLE;
-	len += seq_printf(m, "  Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
-		min, avg, max);
+	seq_printf(m, "  Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
+		   min, avg, max);
 
-	len += seq_printf(m, "pci_map_single(): %12ld calls  %12ld pages (avg %d/1000)\n",
-		ioc->msingle_calls, ioc->msingle_pages,
-		(int) ((ioc->msingle_pages * 1000)/ioc->msingle_calls));
+	seq_printf(m, "pci_map_single(): %12ld calls  %12ld pages (avg %d/1000)\n",
+		   ioc->msingle_calls, ioc->msingle_pages,
+		   (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
 
 	/* KLUGE - unmap_sg calls unmap_single for each mapped page */
 	min = ioc->usingle_calls;
 	max = ioc->usingle_pages - ioc->usg_pages;
-	len += seq_printf(m, "pci_unmap_single: %12ld calls  %12ld pages (avg %d/1000)\n",
-		min, max, (int) ((max * 1000)/min));
+	seq_printf(m, "pci_unmap_single: %12ld calls  %12ld pages (avg %d/1000)\n",
+		   min, max, (int)((max * 1000)/min));
 
-	len += seq_printf(m, "pci_map_sg()    : %12ld calls  %12ld pages (avg %d/1000)\n",
-		ioc->msg_calls, ioc->msg_pages, 
-		(int) ((ioc->msg_pages * 1000)/ioc->msg_calls));
+	seq_printf(m, "pci_map_sg()    : %12ld calls  %12ld pages (avg %d/1000)\n",
+		   ioc->msg_calls, ioc->msg_pages,
+		   (int)((ioc->msg_pages * 1000)/ioc->msg_calls));
 
-	len += seq_printf(m, "pci_unmap_sg()  : %12ld calls  %12ld pages (avg %d/1000)\n",
-		ioc->usg_calls, ioc->usg_pages,
-		(int) ((ioc->usg_pages * 1000)/ioc->usg_calls));
+	seq_printf(m, "pci_unmap_sg()  : %12ld calls  %12ld pages (avg %d/1000)\n",
+		   ioc->usg_calls, ioc->usg_pages,
+		   (int)((ioc->usg_pages * 1000)/ioc->usg_calls));
 #endif
 
 	return 0;
@@ -1858,14 +1856,14 @@ sba_proc_bitmap_info(struct seq_file *m, void *p)
 	struct sba_device *sba_dev = sba_list;
 	struct ioc *ioc = &sba_dev->ioc[0];	/* FIXME: Multi-IOC support! */
 	unsigned int *res_ptr = (unsigned int *)ioc->res_map;
-	int i, len = 0;
+	int i;
 
 	for (i = 0; i < (ioc->res_size/sizeof(unsigned int)); ++i, ++res_ptr) {
 		if ((i & 7) == 0)
-			len += seq_printf(m, "\n   ");
-		len += seq_printf(m, " %08x", *res_ptr);
+			seq_puts(m, "\n   ");
+		seq_printf(m, " %08x", *res_ptr);
 	}
-	len += seq_printf(m, "\n");
+	seq_putc(m, '\n');
 
 	return 0;
 }
-- 
2.1.2


From - Thu Nov 08 21:37:16 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
Date: Sun, 22 Feb 2015 11:45:24 -0500
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Approved: news@gmane.org
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Cc: Helge Deller <deller@gmx.de>,
	Carlos O'Donell <carlos@systemhalted.org>,
	Aaro Koskinen <aaro.koskinen@iki.fi>,
	Mike Frysinger <vapier@gentoo.org>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On 2015-02-21, at 6:57 PM, James Bottomley wrote:

> On Sun, 2015-02-22 at 00:26 +0100, Helge Deller wrote:
>> On 22.02.2015 00:09, James Bottomley wrote:
>>> On Sat, 2015-02-21 at 15:40 -0500, John David Anglin wrote:
>>>> On 2015-02-21, at 3:31 PM, John David Anglin wrote:
>>>> 
>>>>> On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:
>>>>> 
>>>>>> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
>>>>>>> In current eglibc it's set to 0x00400000
>>>>>>> That's what my eglibc-patch changes...
>>>>>>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
>>>>>> 
>>>>>> Anyone object to me fixing this upstream by making SHMLBA match the kernel?
>>>>>> 
>>>>>> I plan to use a fixed value of 4096, since I never expect hppa
>>>>>> userspace to have to care (even if the kernel uses superpages).
>>>>> 
>>>>> We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
>>>>> Is there a performance advantage in using 4096?
>>>>> 
>>>>>> 
>>>>>> Please correct me if I'm wrong.
>>>>> 
>>>>> 
>>>>> At one time, we thought this value needed to be 4 MB.  Helge was
>>>> working on improving the mmap
>>>>> allocation scheme but this work stalled after some improvement.  I
>>>> can't remember the issues and how
>>>>> they relate to SHMLBA.
>>>> 
>>>> 
>>>> Actually, the number was 4 Mb (bit).
>>> 
>>> No, it was 4MB.  That's the cache equivalency stride on PA processors
>>> because we have a VIPT cache.  The architectural requirement according
>>> to the dreaded appendix F is 16MB but we were assured by the PA
>>> architects that it was 4 because they never planned producing processors
>>> that would require 16.  The actual meaning is it's the number of bits of
>>> the virtual address that are significant in the virtual index.
>>> 
>> 
>> Your following statement:
>> 
>>> The point of SHMLBA is that if the same physical page is mapped into two
>>> different virtual addresses but the two addresses are equal, modulo
>>> SHMLBA, then the L1 cache sees the equivalency and you can't get
>>> inequivalent cache aliases for the page (two writes to the two different
>>> addresses producing two separately dirty cache lines which can never
>>> resolve).  This means that the virtual addresses of all shared mappings
>>> have to be equal modulo SHMLBA for the caches not to alias.
>> 
>> With this you define SHMLBA to be the representative number which defines
>> what the current cache equivalency stride of the kernel is, *and* which then can
>> be used by userspace. I think this is a misinterpretation of SHMLBA (or at
>> least a parisc-specific interpretation of SHMLBA), which is not like how it
>> is used on other architectures with similar limitations.
>> Userspace should not know the kernel/architecture specifics. Instead they
>> should try to mmap() memory somewhere (e.g. 4KB aligned) and if they need shared mappings then
>> kernel/glibc will return a corrected mapping address (modulo 4MB).
>> I think this is important, since most userspace programs usually try to mmap at
>> a multiple of SHMLBA with which we then run very soon out of userspace (with SHMLBA=4MB).
>> This has been the issue with localedef in glibc (a strange coding which tries
>> to be platform-specific with mmap-calculation). Because of that in the end
>> it turned out to be best for parisc to have SHMLBA defined to 4kb (and not 4MB).
>> 
>> So, your statement above is correct, I would just not use "SHMLBA" in this term,
>> but maybe "KERNEL_SHMLBA" instead.
> 
> Um, no, SHMLBA comes from the SYS-V IPC primitives.  They were stupid
> enough to allow the user pick the address of the region of shared
> memory, so the user had to know these architectural details and SHMLBA
> encodes them (man shmat will give you the gory details).
> 
> For mmap, we can mostly do the right thing in the kernel, except for
> MAP_FIXED, where the user has to know what they're doing again.
> 
> For the cases the user thinks they know best, we can't avoid giving out
> the knowledge somehow, because inequivalent aliases in writeable
> mappings will HPMC a system.  We could be more relaxed about
> inequivalent aliases in read only mappings (say shared libraries), but
> the consequence of that is an explosion in the use of cache space, so we
> would want some libraries (like glibc) with many shared copies to obey
> SHMLBA.


I agree with Helge.  We run out of memory too quickly with 4 MB.  This resulted in various
userspace applications failing as mentioned by Helge.

MAP_FIXED can fail it the address is a problem.  I believe we check for that.

If you look at the pch implementation in gcc, you will see that the MAP_FIXED problem can be
worked around, and this problem is not specific to parisc.  The pch data has to mapped at the same
address as it was originally created as there is no way to relocate the data.

SHMLBA is 4096 /* (1 << PGSHIFT) */ on hpux.

The following is in <asm-generic/shmparam.h>:
#define SHMLBA PAGE_SIZE	 /* attach addr a multiple of this */

Shared mappings are handled with 
asm/shmparam.h:#define SHM_COLOUR 0x00400000	/* shared mappings colouring */

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:37:16 2018
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Path: news.gmane.org!not-for-mail
From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped
 address
Date: Sun, 22 Feb 2015 09:17:55 -0800
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Cc: Helge Deller <deller@gmx.de>,
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To: John David Anglin <dave.anglin@bell.net>
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On Sun, 2015-02-22 at 11:45 -0500, John David Anglin wrote:
> On 2015-02-21, at 6:57 PM, James Bottomley wrote:
> 
> > On Sun, 2015-02-22 at 00:26 +0100, Helge Deller wrote:
> >> On 22.02.2015 00:09, James Bottomley wrote:
> >>> On Sat, 2015-02-21 at 15:40 -0500, John David Anglin wrote:
> >>>> On 2015-02-21, at 3:31 PM, John David Anglin wrote:
> >>>> 
> >>>>> On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:
> >>>>> 
> >>>>>> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
> >>>>>>> In current eglibc it's set to 0x00400000
> >>>>>>> That's what my eglibc-patch changes...
> >>>>>>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
> >>>>>> 
> >>>>>> Anyone object to me fixing this upstream by making SHMLBA match the kernel?
> >>>>>> 
> >>>>>> I plan to use a fixed value of 4096, since I never expect hppa
> >>>>>> userspace to have to care (even if the kernel uses superpages).
> >>>>> 
> >>>>> We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
> >>>>> Is there a performance advantage in using 4096?
> >>>>> 
> >>>>>> 
> >>>>>> Please correct me if I'm wrong.
> >>>>> 
> >>>>> 
> >>>>> At one time, we thought this value needed to be 4 MB.  Helge was
> >>>> working on improving the mmap
> >>>>> allocation scheme but this work stalled after some improvement.  I
> >>>> can't remember the issues and how
> >>>>> they relate to SHMLBA.
> >>>> 
> >>>> 
> >>>> Actually, the number was 4 Mb (bit).
> >>> 
> >>> No, it was 4MB.  That's the cache equivalency stride on PA processors
> >>> because we have a VIPT cache.  The architectural requirement according
> >>> to the dreaded appendix F is 16MB but we were assured by the PA
> >>> architects that it was 4 because they never planned producing processors
> >>> that would require 16.  The actual meaning is it's the number of bits of
> >>> the virtual address that are significant in the virtual index.
> >>> 
> >> 
> >> Your following statement:
> >> 
> >>> The point of SHMLBA is that if the same physical page is mapped into two
> >>> different virtual addresses but the two addresses are equal, modulo
> >>> SHMLBA, then the L1 cache sees the equivalency and you can't get
> >>> inequivalent cache aliases for the page (two writes to the two different
> >>> addresses producing two separately dirty cache lines which can never
> >>> resolve).  This means that the virtual addresses of all shared mappings
> >>> have to be equal modulo SHMLBA for the caches not to alias.
> >> 
> >> With this you define SHMLBA to be the representative number which defines
> >> what the current cache equivalency stride of the kernel is, *and* which then can
> >> be used by userspace. I think this is a misinterpretation of SHMLBA (or at
> >> least a parisc-specific interpretation of SHMLBA), which is not like how it
> >> is used on other architectures with similar limitations.
> >> Userspace should not know the kernel/architecture specifics. Instead they
> >> should try to mmap() memory somewhere (e.g. 4KB aligned) and if they need shared mappings then
> >> kernel/glibc will return a corrected mapping address (modulo 4MB).
> >> I think this is important, since most userspace programs usually try to mmap at
> >> a multiple of SHMLBA with which we then run very soon out of userspace (with SHMLBA=4MB).
> >> This has been the issue with localedef in glibc (a strange coding which tries
> >> to be platform-specific with mmap-calculation). Because of that in the end
> >> it turned out to be best for parisc to have SHMLBA defined to 4kb (and not 4MB).
> >> 
> >> So, your statement above is correct, I would just not use "SHMLBA" in this term,
> >> but maybe "KERNEL_SHMLBA" instead.
> > 
> > Um, no, SHMLBA comes from the SYS-V IPC primitives.  They were stupid
> > enough to allow the user pick the address of the region of shared
> > memory, so the user had to know these architectural details and SHMLBA
> > encodes them (man shmat will give you the gory details).
> > 
> > For mmap, we can mostly do the right thing in the kernel, except for
> > MAP_FIXED, where the user has to know what they're doing again.
> > 
> > For the cases the user thinks they know best, we can't avoid giving out
> > the knowledge somehow, because inequivalent aliases in writeable
> > mappings will HPMC a system.  We could be more relaxed about
> > inequivalent aliases in read only mappings (say shared libraries), but
> > the consequence of that is an explosion in the use of cache space, so we
> > would want some libraries (like glibc) with many shared copies to obey
> > SHMLBA.
> 
> 
> I agree with Helge.  We run out of memory too quickly with 4 MB.  This resulted in various
> userspace applications failing as mentioned by Helge.
> 
> MAP_FIXED can fail it the address is a problem.  I believe we check for that.
> 
> If you look at the pch implementation in gcc, you will see that the MAP_FIXED problem can be
> worked around, and this problem is not specific to parisc.  The pch data has to mapped at the same
> address as it was originally created as there is no way to relocate the data.
> 
> SHMLBA is 4096 /* (1 << PGSHIFT) */ on hpux.
> 
> The following is in <asm-generic/shmparam.h>:
> #define SHMLBA PAGE_SIZE	 /* attach addr a multiple of this */
> 
> Shared mappings are handled with 
> asm/shmparam.h:#define SHM_COLOUR 0x00400000	/* shared mappings colouring */

So how is the sys-v ipc problem fixed?  There the user is told to select
an address which is a multiple of SHMLBA.  Programs that do this today
will start to break on writeable mappings if we set SHMLBA to PAGE_SIZE
because the colour will be wrong.

James


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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped
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Cc: Helge Deller <deller@gmx.de>,
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To: John David Anglin <dave.anglin@bell.net>
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On Sun, 2015-02-22 at 11:45 -0500, John David Anglin wrote:
> On 2015-02-21, at 6:57 PM, James Bottomley wrote:
> 
> > On Sun, 2015-02-22 at 00:26 +0100, Helge Deller wrote:
> >> On 22.02.2015 00:09, James Bottomley wrote:
> >>> On Sat, 2015-02-21 at 15:40 -0500, John David Anglin wrote:
> >>>> On 2015-02-21, at 3:31 PM, John David Anglin wrote:
> >>>> 
> >>>>> On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:
> >>>>> 
> >>>>>> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
> >>>>>>> In current eglibc it's set to 0x00400000
> >>>>>>> That's what my eglibc-patch changes...
> >>>>>>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
> >>>>>> 
> >>>>>> Anyone object to me fixing this upstream by making SHMLBA match the kernel?
> >>>>>> 
> >>>>>> I plan to use a fixed value of 4096, since I never expect hppa
> >>>>>> userspace to have to care (even if the kernel uses superpages).
> >>>>> 
> >>>>> We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
> >>>>> Is there a performance advantage in using 4096?
> >>>>> 
> >>>>>> 
> >>>>>> Please correct me if I'm wrong.
> >>>>> 
> >>>>> 
> >>>>> At one time, we thought this value needed to be 4 MB.  Helge was
> >>>> working on improving the mmap
> >>>>> allocation scheme but this work stalled after some improvement.  I
> >>>> can't remember the issues and how
> >>>>> they relate to SHMLBA.
> >>>> 
> >>>> 
> >>>> Actually, the number was 4 Mb (bit).
> >>> 
> >>> No, it was 4MB.  That's the cache equivalency stride on PA processors
> >>> because we have a VIPT cache.  The architectural requirement according
> >>> to the dreaded appendix F is 16MB but we were assured by the PA
> >>> architects that it was 4 because they never planned producing processors
> >>> that would require 16.  The actual meaning is it's the number of bits of
> >>> the virtual address that are significant in the virtual index.
> >>> 
> >> 
> >> Your following statement:
> >> 
> >>> The point of SHMLBA is that if the same physical page is mapped into two
> >>> different virtual addresses but the two addresses are equal, modulo
> >>> SHMLBA, then the L1 cache sees the equivalency and you can't get
> >>> inequivalent cache aliases for the page (two writes to the two different
> >>> addresses producing two separately dirty cache lines which can never
> >>> resolve).  This means that the virtual addresses of all shared mappings
> >>> have to be equal modulo SHMLBA for the caches not to alias.
> >> 
> >> With this you define SHMLBA to be the representative number which defines
> >> what the current cache equivalency stride of the kernel is, *and* which then can
> >> be used by userspace. I think this is a misinterpretation of SHMLBA (or at
> >> least a parisc-specific interpretation of SHMLBA), which is not like how it
> >> is used on other architectures with similar limitations.
> >> Userspace should not know the kernel/architecture specifics. Instead they
> >> should try to mmap() memory somewhere (e.g. 4KB aligned) and if they need shared mappings then
> >> kernel/glibc will return a corrected mapping address (modulo 4MB).
> >> I think this is important, since most userspace programs usually try to mmap at
> >> a multiple of SHMLBA with which we then run very soon out of userspace (with SHMLBA=4MB).
> >> This has been the issue with localedef in glibc (a strange coding which tries
> >> to be platform-specific with mmap-calculation). Because of that in the end
> >> it turned out to be best for parisc to have SHMLBA defined to 4kb (and not 4MB).
> >> 
> >> So, your statement above is correct, I would just not use "SHMLBA" in this term,
> >> but maybe "KERNEL_SHMLBA" instead.
> > 
> > Um, no, SHMLBA comes from the SYS-V IPC primitives.  They were stupid
> > enough to allow the user pick the address of the region of shared
> > memory, so the user had to know these architectural details and SHMLBA
> > encodes them (man shmat will give you the gory details).
> > 
> > For mmap, we can mostly do the right thing in the kernel, except for
> > MAP_FIXED, where the user has to know what they're doing again.
> > 
> > For the cases the user thinks they know best, we can't avoid giving out
> > the knowledge somehow, because inequivalent aliases in writeable
> > mappings will HPMC a system.  We could be more relaxed about
> > inequivalent aliases in read only mappings (say shared libraries), but
> > the consequence of that is an explosion in the use of cache space, so we
> > would want some libraries (like glibc) with many shared copies to obey
> > SHMLBA.
> 
> 
> I agree with Helge.  We run out of memory too quickly with 4 MB.  This resulted in various
> userspace applications failing as mentioned by Helge.
> 
> MAP_FIXED can fail it the address is a problem.  I believe we check for that.
> 
> If you look at the pch implementation in gcc, you will see that the MAP_FIXED problem can be
> worked around, and this problem is not specific to parisc.  The pch data has to mapped at the same
> address as it was originally created as there is no way to relocate the data.
> 
> SHMLBA is 4096 /* (1 << PGSHIFT) */ on hpux.

Do we know what tricks hpux does in shmat() to pull this off?  Making
writeable mappings uncacheable might be one way.  Using the space bits
as part of the VI index generation would be another.  I think there were
also some space bit quadrant tricks hpux pulls, aren't there?

James


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From: Helge Deller <deller@gmx.de>
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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On 22.02.2015 18:17, James Bottomley wrote:
> On Sun, 2015-02-22 at 11:45 -0500, John David Anglin wrote:
>> On 2015-02-21, at 6:57 PM, James Bottomley wrote:
>>
>>> On Sun, 2015-02-22 at 00:26 +0100, Helge Deller wrote:
>>>> On 22.02.2015 00:09, James Bottomley wrote:
>>>>> On Sat, 2015-02-21 at 15:40 -0500, John David Anglin wrote:
>>>>>> On 2015-02-21, at 3:31 PM, John David Anglin wrote:
>>>>>>
>>>>>>> On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:
>>>>>>>
>>>>>>>> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
>>>>>>>>> In current eglibc it's set to 0x00400000
>>>>>>>>> That's what my eglibc-patch changes...
>>>>>>>>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
>>>>>>>>
>>>>>>>> Anyone object to me fixing this upstream by making SHMLBA match the kernel?
>>>>>>>>
>>>>>>>> I plan to use a fixed value of 4096, since I never expect hppa
>>>>>>>> userspace to have to care (even if the kernel uses superpages).
>>>>>>>
>>>>>>> We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
>>>>>>> Is there a performance advantage in using 4096?
>>>>>>>
>>>>>>>>
>>>>>>>> Please correct me if I'm wrong.
>>>>>>>
>>>>>>>
>>>>>>> At one time, we thought this value needed to be 4 MB.  Helge was
>>>>>> working on improving the mmap
>>>>>>> allocation scheme but this work stalled after some improvement.  I
>>>>>> can't remember the issues and how
>>>>>>> they relate to SHMLBA.
>>>>>>
>>>>>>
>>>>>> Actually, the number was 4 Mb (bit).
>>>>>
>>>>> No, it was 4MB.  That's the cache equivalency stride on PA processors
>>>>> because we have a VIPT cache.  The architectural requirement according
>>>>> to the dreaded appendix F is 16MB but we were assured by the PA
>>>>> architects that it was 4 because they never planned producing processors
>>>>> that would require 16.  The actual meaning is it's the number of bits of
>>>>> the virtual address that are significant in the virtual index.
>>>>>
>>>>
>>>> Your following statement:
>>>>
>>>>> The point of SHMLBA is that if the same physical page is mapped into two
>>>>> different virtual addresses but the two addresses are equal, modulo
>>>>> SHMLBA, then the L1 cache sees the equivalency and you can't get
>>>>> inequivalent cache aliases for the page (two writes to the two different
>>>>> addresses producing two separately dirty cache lines which can never
>>>>> resolve).  This means that the virtual addresses of all shared mappings
>>>>> have to be equal modulo SHMLBA for the caches not to alias.
>>>>
>>>> With this you define SHMLBA to be the representative number which defines
>>>> what the current cache equivalency stride of the kernel is, *and* which then can
>>>> be used by userspace. I think this is a misinterpretation of SHMLBA (or at
>>>> least a parisc-specific interpretation of SHMLBA), which is not like how it
>>>> is used on other architectures with similar limitations.
>>>> Userspace should not know the kernel/architecture specifics. Instead they
>>>> should try to mmap() memory somewhere (e.g. 4KB aligned) and if they need shared mappings then
>>>> kernel/glibc will return a corrected mapping address (modulo 4MB).
>>>> I think this is important, since most userspace programs usually try to mmap at
>>>> a multiple of SHMLBA with which we then run very soon out of userspace (with SHMLBA=4MB).
>>>> This has been the issue with localedef in glibc (a strange coding which tries
>>>> to be platform-specific with mmap-calculation). Because of that in the end
>>>> it turned out to be best for parisc to have SHMLBA defined to 4kb (and not 4MB).
>>>>
>>>> So, your statement above is correct, I would just not use "SHMLBA" in this term,
>>>> but maybe "KERNEL_SHMLBA" instead.
>>>
>>> Um, no, SHMLBA comes from the SYS-V IPC primitives.  They were stupid
>>> enough to allow the user pick the address of the region of shared
>>> memory, so the user had to know these architectural details and SHMLBA
>>> encodes them (man shmat will give you the gory details).
>>>
>>> For mmap, we can mostly do the right thing in the kernel, except for
>>> MAP_FIXED, where the user has to know what they're doing again.
>>>
>>> For the cases the user thinks they know best, we can't avoid giving out
>>> the knowledge somehow, because inequivalent aliases in writeable
>>> mappings will HPMC a system.  We could be more relaxed about
>>> inequivalent aliases in read only mappings (say shared libraries), but
>>> the consequence of that is an explosion in the use of cache space, so we
>>> would want some libraries (like glibc) with many shared copies to obey
>>> SHMLBA.
>>
>>
>> I agree with Helge.  We run out of memory too quickly with 4 MB.  This resulted in various
>> userspace applications failing as mentioned by Helge.
>>
>> MAP_FIXED can fail it the address is a problem.  I believe we check for that.
>>
>> If you look at the pch implementation in gcc, you will see that the MAP_FIXED problem can be
>> worked around, and this problem is not specific to parisc.  The pch data has to mapped at the same
>> address as it was originally created as there is no way to relocate the data.
>>
>> SHMLBA is 4096 /* (1 << PGSHIFT) */ on hpux.
>>
>> The following is in <asm-generic/shmparam.h>:
>> #define SHMLBA PAGE_SIZE	 /* attach addr a multiple of this */
>>
>> Shared mappings are handled with
>> asm/shmparam.h:#define SHM_COLOUR 0x00400000	/* shared mappings colouring */
>
> So how is the sys-v ipc problem fixed?  There the user is told to select
> an address which is a multiple of SHMLBA.  Programs that do this today
> will start to break on writeable mappings if we set SHMLBA to PAGE_SIZE
> because the colour will be wrong.

No, an mmap() to a fixed shared address which violates the colouring will fail for userspace.
Instead most userspaces today just use a shared mmap() without a fixed address and get returned
a new address (calculated by kernel) which does not violate the colouring.
Dave and me worked on quite some such userspace issues in the last years (esp. glibc), and
having SHMLBA=4096 is the way it now works best as it is similar to the other architectures
and existing userspace programs do cope correctly with it.

Helge
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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On 2015-02-22, at 12:17 PM, James Bottomley wrote:

> On Sun, 2015-02-22 at 11:45 -0500, John David Anglin wrote:
>> On 2015-02-21, at 6:57 PM, James Bottomley wrote:
>> 
>>> On Sun, 2015-02-22 at 00:26 +0100, Helge Deller wrote:
>>>> On 22.02.2015 00:09, James Bottomley wrote:
>>>>> On Sat, 2015-02-21 at 15:40 -0500, John David Anglin wrote:
>>>>>> On 2015-02-21, at 3:31 PM, John David Anglin wrote:
>>>>>> 
>>>>>>> On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:
>>>>>>> 
>>>>>>>> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
>>>>>>>>> In current eglibc it's set to 0x00400000
>>>>>>>>> That's what my eglibc-patch changes...
>>>>>>>>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
>>>>>>>> 
>>>>>>>> Anyone object to me fixing this upstream by making SHMLBA match the kernel?
>>>>>>>> 
>>>>>>>> I plan to use a fixed value of 4096, since I never expect hppa
>>>>>>>> userspace to have to care (even if the kernel uses superpages).
>>>>>>> 
>>>>>>> We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
>>>>>>> Is there a performance advantage in using 4096?
>>>>>>> 
>>>>>>>> 
>>>>>>>> Please correct me if I'm wrong.
>>>>>>> 
>>>>>>> 
>>>>>>> At one time, we thought this value needed to be 4 MB.  Helge was
>>>>>> working on improving the mmap
>>>>>>> allocation scheme but this work stalled after some improvement.  I
>>>>>> can't remember the issues and how
>>>>>>> they relate to SHMLBA.
>>>>>> 
>>>>>> 
>>>>>> Actually, the number was 4 Mb (bit).
>>>>> 
>>>>> No, it was 4MB.  That's the cache equivalency stride on PA processors
>>>>> because we have a VIPT cache.  The architectural requirement according
>>>>> to the dreaded appendix F is 16MB but we were assured by the PA
>>>>> architects that it was 4 because they never planned producing processors
>>>>> that would require 16.  The actual meaning is it's the number of bits of
>>>>> the virtual address that are significant in the virtual index.
>>>>> 
>>>> 
>>>> Your following statement:
>>>> 
>>>>> The point of SHMLBA is that if the same physical page is mapped into two
>>>>> different virtual addresses but the two addresses are equal, modulo
>>>>> SHMLBA, then the L1 cache sees the equivalency and you can't get
>>>>> inequivalent cache aliases for the page (two writes to the two different
>>>>> addresses producing two separately dirty cache lines which can never
>>>>> resolve).  This means that the virtual addresses of all shared mappings
>>>>> have to be equal modulo SHMLBA for the caches not to alias.
>>>> 
>>>> With this you define SHMLBA to be the representative number which defines
>>>> what the current cache equivalency stride of the kernel is, *and* which then can
>>>> be used by userspace. I think this is a misinterpretation of SHMLBA (or at
>>>> least a parisc-specific interpretation of SHMLBA), which is not like how it
>>>> is used on other architectures with similar limitations.
>>>> Userspace should not know the kernel/architecture specifics. Instead they
>>>> should try to mmap() memory somewhere (e.g. 4KB aligned) and if they need shared mappings then
>>>> kernel/glibc will return a corrected mapping address (modulo 4MB).
>>>> I think this is important, since most userspace programs usually try to mmap at
>>>> a multiple of SHMLBA with which we then run very soon out of userspace (with SHMLBA=4MB).
>>>> This has been the issue with localedef in glibc (a strange coding which tries
>>>> to be platform-specific with mmap-calculation). Because of that in the end
>>>> it turned out to be best for parisc to have SHMLBA defined to 4kb (and not 4MB).
>>>> 
>>>> So, your statement above is correct, I would just not use "SHMLBA" in this term,
>>>> but maybe "KERNEL_SHMLBA" instead.
>>> 
>>> Um, no, SHMLBA comes from the SYS-V IPC primitives.  They were stupid
>>> enough to allow the user pick the address of the region of shared
>>> memory, so the user had to know these architectural details and SHMLBA
>>> encodes them (man shmat will give you the gory details).
>>> 
>>> For mmap, we can mostly do the right thing in the kernel, except for
>>> MAP_FIXED, where the user has to know what they're doing again.
>>> 
>>> For the cases the user thinks they know best, we can't avoid giving out
>>> the knowledge somehow, because inequivalent aliases in writeable
>>> mappings will HPMC a system.  We could be more relaxed about
>>> inequivalent aliases in read only mappings (say shared libraries), but
>>> the consequence of that is an explosion in the use of cache space, so we
>>> would want some libraries (like glibc) with many shared copies to obey
>>> SHMLBA.
>> 
>> 
>> I agree with Helge.  We run out of memory too quickly with 4 MB.  This resulted in various
>> userspace applications failing as mentioned by Helge.
>> 
>> MAP_FIXED can fail it the address is a problem.  I believe we check for that.
>> 
>> If you look at the pch implementation in gcc, you will see that the MAP_FIXED problem can be
>> worked around, and this problem is not specific to parisc.  The pch data has to mapped at the same
>> address as it was originally created as there is no way to relocate the data.
>> 
>> SHMLBA is 4096 /* (1 << PGSHIFT) */ on hpux.
>> 
>> The following is in <asm-generic/shmparam.h>:
>> #define SHMLBA PAGE_SIZE	 /* attach addr a multiple of this */
>> 
>> Shared mappings are handled with 
>> asm/shmparam.h:#define SHM_COLOUR 0x00400000	/* shared mappings colouring */
> 
> So how is the sys-v ipc problem fixed?  There the user is told to select
> an address which is a multiple of SHMLBA.  Programs that do this today
> will start to break on writeable mappings if we set SHMLBA to PAGE_SIZE
> because the colour will be wrong.


The code returns -EINVAL.  See arch_get_unmapped_area.

Dave
--
John David Anglin	dave.anglin@bell.net



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Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped
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On Sun, 2015-02-22 at 12:54 -0500, John David Anglin wrote:
> On 2015-02-22, at 12:17 PM, James Bottomley wrote:
> 
> > On Sun, 2015-02-22 at 11:45 -0500, John David Anglin wrote:
> >> On 2015-02-21, at 6:57 PM, James Bottomley wrote:
> >> 
> >>> On Sun, 2015-02-22 at 00:26 +0100, Helge Deller wrote:
> >>>> On 22.02.2015 00:09, James Bottomley wrote:
> >>>>> On Sat, 2015-02-21 at 15:40 -0500, John David Anglin wrote:
> >>>>>> On 2015-02-21, at 3:31 PM, John David Anglin wrote:
> >>>>>> 
> >>>>>>> On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:
> >>>>>>> 
> >>>>>>>> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
> >>>>>>>>> In current eglibc it's set to 0x00400000
> >>>>>>>>> That's what my eglibc-patch changes...
> >>>>>>>>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
> >>>>>>>> 
> >>>>>>>> Anyone object to me fixing this upstream by making SHMLBA match the kernel?
> >>>>>>>> 
> >>>>>>>> I plan to use a fixed value of 4096, since I never expect hppa
> >>>>>>>> userspace to have to care (even if the kernel uses superpages).
> >>>>>>> 
> >>>>>>> We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
> >>>>>>> Is there a performance advantage in using 4096?
> >>>>>>> 
> >>>>>>>> 
> >>>>>>>> Please correct me if I'm wrong.
> >>>>>>> 
> >>>>>>> 
> >>>>>>> At one time, we thought this value needed to be 4 MB.  Helge was
> >>>>>> working on improving the mmap
> >>>>>>> allocation scheme but this work stalled after some improvement.  I
> >>>>>> can't remember the issues and how
> >>>>>>> they relate to SHMLBA.
> >>>>>> 
> >>>>>> 
> >>>>>> Actually, the number was 4 Mb (bit).
> >>>>> 
> >>>>> No, it was 4MB.  That's the cache equivalency stride on PA processors
> >>>>> because we have a VIPT cache.  The architectural requirement according
> >>>>> to the dreaded appendix F is 16MB but we were assured by the PA
> >>>>> architects that it was 4 because they never planned producing processors
> >>>>> that would require 16.  The actual meaning is it's the number of bits of
> >>>>> the virtual address that are significant in the virtual index.
> >>>>> 
> >>>> 
> >>>> Your following statement:
> >>>> 
> >>>>> The point of SHMLBA is that if the same physical page is mapped into two
> >>>>> different virtual addresses but the two addresses are equal, modulo
> >>>>> SHMLBA, then the L1 cache sees the equivalency and you can't get
> >>>>> inequivalent cache aliases for the page (two writes to the two different
> >>>>> addresses producing two separately dirty cache lines which can never
> >>>>> resolve).  This means that the virtual addresses of all shared mappings
> >>>>> have to be equal modulo SHMLBA for the caches not to alias.
> >>>> 
> >>>> With this you define SHMLBA to be the representative number which defines
> >>>> what the current cache equivalency stride of the kernel is, *and* which then can
> >>>> be used by userspace. I think this is a misinterpretation of SHMLBA (or at
> >>>> least a parisc-specific interpretation of SHMLBA), which is not like how it
> >>>> is used on other architectures with similar limitations.
> >>>> Userspace should not know the kernel/architecture specifics. Instead they
> >>>> should try to mmap() memory somewhere (e.g. 4KB aligned) and if they need shared mappings then
> >>>> kernel/glibc will return a corrected mapping address (modulo 4MB).
> >>>> I think this is important, since most userspace programs usually try to mmap at
> >>>> a multiple of SHMLBA with which we then run very soon out of userspace (with SHMLBA=4MB).
> >>>> This has been the issue with localedef in glibc (a strange coding which tries
> >>>> to be platform-specific with mmap-calculation). Because of that in the end
> >>>> it turned out to be best for parisc to have SHMLBA defined to 4kb (and not 4MB).
> >>>> 
> >>>> So, your statement above is correct, I would just not use "SHMLBA" in this term,
> >>>> but maybe "KERNEL_SHMLBA" instead.
> >>> 
> >>> Um, no, SHMLBA comes from the SYS-V IPC primitives.  They were stupid
> >>> enough to allow the user pick the address of the region of shared
> >>> memory, so the user had to know these architectural details and SHMLBA
> >>> encodes them (man shmat will give you the gory details).
> >>> 
> >>> For mmap, we can mostly do the right thing in the kernel, except for
> >>> MAP_FIXED, where the user has to know what they're doing again.
> >>> 
> >>> For the cases the user thinks they know best, we can't avoid giving out
> >>> the knowledge somehow, because inequivalent aliases in writeable
> >>> mappings will HPMC a system.  We could be more relaxed about
> >>> inequivalent aliases in read only mappings (say shared libraries), but
> >>> the consequence of that is an explosion in the use of cache space, so we
> >>> would want some libraries (like glibc) with many shared copies to obey
> >>> SHMLBA.
> >> 
> >> 
> >> I agree with Helge.  We run out of memory too quickly with 4 MB.  This resulted in various
> >> userspace applications failing as mentioned by Helge.
> >> 
> >> MAP_FIXED can fail it the address is a problem.  I believe we check for that.
> >> 
> >> If you look at the pch implementation in gcc, you will see that the MAP_FIXED problem can be
> >> worked around, and this problem is not specific to parisc.  The pch data has to mapped at the same
> >> address as it was originally created as there is no way to relocate the data.
> >> 
> >> SHMLBA is 4096 /* (1 << PGSHIFT) */ on hpux.
> >> 
> >> The following is in <asm-generic/shmparam.h>:
> >> #define SHMLBA PAGE_SIZE	 /* attach addr a multiple of this */
> >> 
> >> Shared mappings are handled with 
> >> asm/shmparam.h:#define SHM_COLOUR 0x00400000	/* shared mappings colouring */
> > 
> > So how is the sys-v ipc problem fixed?  There the user is told to select
> > an address which is a multiple of SHMLBA.  Programs that do this today
> > will start to break on writeable mappings if we set SHMLBA to PAGE_SIZE
> > because the colour will be wrong.
> 
> 
> The code returns -EINVAL.  See arch_get_unmapped_area.

But that's not a solution.  Let me try to illustrate: I have an existing
application, it uses sys-v ipc and selects a shmat address based on the
multiple of SHMLBA for a writeable mapping.  Today it works.  Tomorrow
when you make this change, it fails with -EINVAL.  That's breaking an
existing application because chances are the app will just report the
failure and exit.

James



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Cc: Helge Deller <deller@gmx.de>,
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On 2015-02-22, at 12:28 PM, James Bottomley wrote:

> On Sun, 2015-02-22 at 11:45 -0500, John David Anglin wrote:
>> On 2015-02-21, at 6:57 PM, James Bottomley wrote:
>> 
>>> On Sun, 2015-02-22 at 00:26 +0100, Helge Deller wrote:
>>>> On 22.02.2015 00:09, James Bottomley wrote:
>>>>> On Sat, 2015-02-21 at 15:40 -0500, John David Anglin wrote:
>>>>>> On 2015-02-21, at 3:31 PM, John David Anglin wrote:
>>>>>> 
>>>>>>> On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:
>>>>>>> 
>>>>>>>> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
>>>>>>>>> In current eglibc it's set to 0x00400000
>>>>>>>>> That's what my eglibc-patch changes...
>>>>>>>>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
>>>>>>>> 
>>>>>>>> Anyone object to me fixing this upstream by making SHMLBA match the kernel?
>>>>>>>> 
>>>>>>>> I plan to use a fixed value of 4096, since I never expect hppa
>>>>>>>> userspace to have to care (even if the kernel uses superpages).
>>>>>>> 
>>>>>>> We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
>>>>>>> Is there a performance advantage in using 4096?
>>>>>>> 
>>>>>>>> 
>>>>>>>> Please correct me if I'm wrong.
>>>>>>> 
>>>>>>> 
>>>>>>> At one time, we thought this value needed to be 4 MB.  Helge was
>>>>>> working on improving the mmap
>>>>>>> allocation scheme but this work stalled after some improvement.  I
>>>>>> can't remember the issues and how
>>>>>>> they relate to SHMLBA.
>>>>>> 
>>>>>> 
>>>>>> Actually, the number was 4 Mb (bit).
>>>>> 
>>>>> No, it was 4MB.  That's the cache equivalency stride on PA processors
>>>>> because we have a VIPT cache.  The architectural requirement according
>>>>> to the dreaded appendix F is 16MB but we were assured by the PA
>>>>> architects that it was 4 because they never planned producing processors
>>>>> that would require 16.  The actual meaning is it's the number of bits of
>>>>> the virtual address that are significant in the virtual index.
>>>>> 
>>>> 
>>>> Your following statement:
>>>> 
>>>>> The point of SHMLBA is that if the same physical page is mapped into two
>>>>> different virtual addresses but the two addresses are equal, modulo
>>>>> SHMLBA, then the L1 cache sees the equivalency and you can't get
>>>>> inequivalent cache aliases for the page (two writes to the two different
>>>>> addresses producing two separately dirty cache lines which can never
>>>>> resolve).  This means that the virtual addresses of all shared mappings
>>>>> have to be equal modulo SHMLBA for the caches not to alias.
>>>> 
>>>> With this you define SHMLBA to be the representative number which defines
>>>> what the current cache equivalency stride of the kernel is, *and* which then can
>>>> be used by userspace. I think this is a misinterpretation of SHMLBA (or at
>>>> least a parisc-specific interpretation of SHMLBA), which is not like how it
>>>> is used on other architectures with similar limitations.
>>>> Userspace should not know the kernel/architecture specifics. Instead they
>>>> should try to mmap() memory somewhere (e.g. 4KB aligned) and if they need shared mappings then
>>>> kernel/glibc will return a corrected mapping address (modulo 4MB).
>>>> I think this is important, since most userspace programs usually try to mmap at
>>>> a multiple of SHMLBA with which we then run very soon out of userspace (with SHMLBA=4MB).
>>>> This has been the issue with localedef in glibc (a strange coding which tries
>>>> to be platform-specific with mmap-calculation). Because of that in the end
>>>> it turned out to be best for parisc to have SHMLBA defined to 4kb (and not 4MB).
>>>> 
>>>> So, your statement above is correct, I would just not use "SHMLBA" in this term,
>>>> but maybe "KERNEL_SHMLBA" instead.
>>> 
>>> Um, no, SHMLBA comes from the SYS-V IPC primitives.  They were stupid
>>> enough to allow the user pick the address of the region of shared
>>> memory, so the user had to know these architectural details and SHMLBA
>>> encodes them (man shmat will give you the gory details).
>>> 
>>> For mmap, we can mostly do the right thing in the kernel, except for
>>> MAP_FIXED, where the user has to know what they're doing again.
>>> 
>>> For the cases the user thinks they know best, we can't avoid giving out
>>> the knowledge somehow, because inequivalent aliases in writeable
>>> mappings will HPMC a system.  We could be more relaxed about
>>> inequivalent aliases in read only mappings (say shared libraries), but
>>> the consequence of that is an explosion in the use of cache space, so we
>>> would want some libraries (like glibc) with many shared copies to obey
>>> SHMLBA.
>> 
>> 
>> I agree with Helge.  We run out of memory too quickly with 4 MB.  This resulted in various
>> userspace applications failing as mentioned by Helge.
>> 
>> MAP_FIXED can fail it the address is a problem.  I believe we check for that.
>> 
>> If you look at the pch implementation in gcc, you will see that the MAP_FIXED problem can be
>> worked around, and this problem is not specific to parisc.  The pch data has to mapped at the same
>> address as it was originally created as there is no way to relocate the data.
>> 
>> SHMLBA is 4096 /* (1 << PGSHIFT) */ on hpux.
> 
> Do we know what tricks hpux does in shmat() to pull this off?  Making
> writeable mappings uncacheable might be one way.  Using the space bits
> as part of the VI index generation would be another.  I think there were
> also some space bit quadrant tricks hpux pulls, aren't there?


I don't know anything about the internal details.  I believed that shared mappings of shared libraries normally in
one quadrant and private mappings in another quadrant.  One can't place a break point in a shared library when
the mapping is shared.

Dave
--
John David Anglin	dave.anglin@bell.net



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To: James Bottomley <James.Bottomley@HansenPartnership.com>,
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On 22.02.2015 18:58, James Bottomley wrote:
> On Sun, 2015-02-22 at 12:54 -0500, John David Anglin wrote:
>> On 2015-02-22, at 12:17 PM, James Bottomley wrote:
>>
>>> On Sun, 2015-02-22 at 11:45 -0500, John David Anglin wrote:
>>>> On 2015-02-21, at 6:57 PM, James Bottomley wrote:
>>>>
>>>>> On Sun, 2015-02-22 at 00:26 +0100, Helge Deller wrote:
>>>>>> On 22.02.2015 00:09, James Bottomley wrote:
>>>>>>> On Sat, 2015-02-21 at 15:40 -0500, John David Anglin wrote:
>>>>>>>> On 2015-02-21, at 3:31 PM, John David Anglin wrote:
>>>>>>>>
>>>>>>>>> On 2015-02-20, at 4:36 PM, Carlos O'Donell wrote:
>>>>>>>>>
>>>>>>>>>> On Thu, Apr 3, 2014 at 4:26 PM, Helge Deller <deller@gmx.de> wrote:
>>>>>>>>>>> In current eglibc it's set to 0x00400000
>>>>>>>>>>> That's what my eglibc-patch changes...
>>>>>>>>>>> I'm currently building a eglibc on hpviz with SHMLBA set to 4096 (__getpagesize()).
>>>>>>>>>>
>>>>>>>>>> Anyone object to me fixing this upstream by making SHMLBA match the kernel?
>>>>>>>>>>
>>>>>>>>>> I plan to use a fixed value of 4096, since I never expect hppa
>>>>>>>>>> userspace to have to care (even if the kernel uses superpages).
>>>>>>>>>
>>>>>>>>> We currently use (__getpagesize ()) in Debian and this seems to be a common definition.
>>>>>>>>> Is there a performance advantage in using 4096?
>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Please correct me if I'm wrong.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> At one time, we thought this value needed to be 4 MB.  Helge was
>>>>>>>> working on improving the mmap
>>>>>>>>> allocation scheme but this work stalled after some improvement.  I
>>>>>>>> can't remember the issues and how
>>>>>>>>> they relate to SHMLBA.
>>>>>>>>
>>>>>>>>
>>>>>>>> Actually, the number was 4 Mb (bit).
>>>>>>>
>>>>>>> No, it was 4MB.  That's the cache equivalency stride on PA processors
>>>>>>> because we have a VIPT cache.  The architectural requirement according
>>>>>>> to the dreaded appendix F is 16MB but we were assured by the PA
>>>>>>> architects that it was 4 because they never planned producing processors
>>>>>>> that would require 16.  The actual meaning is it's the number of bits of
>>>>>>> the virtual address that are significant in the virtual index.
>>>>>>>
>>>>>>
>>>>>> Your following statement:
>>>>>>
>>>>>>> The point of SHMLBA is that if the same physical page is mapped into two
>>>>>>> different virtual addresses but the two addresses are equal, modulo
>>>>>>> SHMLBA, then the L1 cache sees the equivalency and you can't get
>>>>>>> inequivalent cache aliases for the page (two writes to the two different
>>>>>>> addresses producing two separately dirty cache lines which can never
>>>>>>> resolve).  This means that the virtual addresses of all shared mappings
>>>>>>> have to be equal modulo SHMLBA for the caches not to alias.
>>>>>>
>>>>>> With this you define SHMLBA to be the representative number which defines
>>>>>> what the current cache equivalency stride of the kernel is, *and* which then can
>>>>>> be used by userspace. I think this is a misinterpretation of SHMLBA (or at
>>>>>> least a parisc-specific interpretation of SHMLBA), which is not like how it
>>>>>> is used on other architectures with similar limitations.
>>>>>> Userspace should not know the kernel/architecture specifics. Instead they
>>>>>> should try to mmap() memory somewhere (e.g. 4KB aligned) and if they need shared mappings then
>>>>>> kernel/glibc will return a corrected mapping address (modulo 4MB).
>>>>>> I think this is important, since most userspace programs usually try to mmap at
>>>>>> a multiple of SHMLBA with which we then run very soon out of userspace (with SHMLBA=4MB).
>>>>>> This has been the issue with localedef in glibc (a strange coding which tries
>>>>>> to be platform-specific with mmap-calculation). Because of that in the end
>>>>>> it turned out to be best for parisc to have SHMLBA defined to 4kb (and not 4MB).
>>>>>>
>>>>>> So, your statement above is correct, I would just not use "SHMLBA" in this term,
>>>>>> but maybe "KERNEL_SHMLBA" instead.
>>>>>
>>>>> Um, no, SHMLBA comes from the SYS-V IPC primitives.  They were stupid
>>>>> enough to allow the user pick the address of the region of shared
>>>>> memory, so the user had to know these architectural details and SHMLBA
>>>>> encodes them (man shmat will give you the gory details).
>>>>>
>>>>> For mmap, we can mostly do the right thing in the kernel, except for
>>>>> MAP_FIXED, where the user has to know what they're doing again.
>>>>>
>>>>> For the cases the user thinks they know best, we can't avoid giving out
>>>>> the knowledge somehow, because inequivalent aliases in writeable
>>>>> mappings will HPMC a system.  We could be more relaxed about
>>>>> inequivalent aliases in read only mappings (say shared libraries), but
>>>>> the consequence of that is an explosion in the use of cache space, so we
>>>>> would want some libraries (like glibc) with many shared copies to obey
>>>>> SHMLBA.
>>>>
>>>>
>>>> I agree with Helge.  We run out of memory too quickly with 4 MB.  This resulted in various
>>>> userspace applications failing as mentioned by Helge.
>>>>
>>>> MAP_FIXED can fail it the address is a problem.  I believe we check for that.
>>>>
>>>> If you look at the pch implementation in gcc, you will see that the MAP_FIXED problem can be
>>>> worked around, and this problem is not specific to parisc.  The pch data has to mapped at the same
>>>> address as it was originally created as there is no way to relocate the data.
>>>>
>>>> SHMLBA is 4096 /* (1 << PGSHIFT) */ on hpux.
>>>>
>>>> The following is in <asm-generic/shmparam.h>:
>>>> #define SHMLBA PAGE_SIZE	 /* attach addr a multiple of this */
>>>>
>>>> Shared mappings are handled with
>>>> asm/shmparam.h:#define SHM_COLOUR 0x00400000	/* shared mappings colouring */
>>>
>>> So how is the sys-v ipc problem fixed?  There the user is told to select
>>> an address which is a multiple of SHMLBA.  Programs that do this today
>>> will start to break on writeable mappings if we set SHMLBA to PAGE_SIZE
>>> because the colour will be wrong.
>>
>>
>> The code returns -EINVAL.  See arch_get_unmapped_area.
>
> But that's not a solution.  Let me try to illustrate: I have an existing
> application, it uses sys-v ipc and selects a shmat address based on the
> multiple of SHMLBA for a writeable mapping.  Today it works.

It will work as well with SHMBLA=4096, if you just use SHM_RND too
(and most applications do have SHM_RND).
man shmat says:
  * If shmaddr isn't NULL and SHM_RND is specified in shmflg, the attach occurs at the address equal to shmaddr rounded down to the nearest multiple of SHMLBA.
* Otherwise, shmaddr must be a page-aligned address at which the attach occurs.

So, even here shmaddr is mentioned to be page-aligned (4k), not SHMLBA-aligned (4M in your case).

>Tomorrow
> when you make this change, it fails with -EINVAL.  That's breaking an
> existing application because chances are the app will just report the
> failure and exit.

Tomorrow?  This change is *already* implemented in eglibc since a year or
so and I don't see any applications which break because of SHMBLA=4096...

Helge
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
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On 22.02.2015 18:54, John David Anglin wrote:
> At one time, we thought this value needed to be 4 MB.
> Helge was working on improving the mmap allocation scheme but this
> work stalled after some improvement.

The patches are still available:
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=parisc-mmap&id=34ae0a4620b50d27ce2f1314322275cbea7f2055
and
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=parisc-mmap&id=7a6e51ddfd3ab3b11a4ebdd995e26672e69a8efa

Basically the idea is:
- Currently we have a static calculation where the mapping should happen inside the 4MB range:
   see: arch/parisc/kernel/sys_parisc.c: (filp ? ((unsigned long) filp->f_mapping) >> 8 : 0UL)
- Replace that by a dynamic mapping, which searches best fit address in free mem area *if* the file hasn't been mapped yet, and save this mapping in the struct address_space. If another process then maps the same file again, then just reuse the last calculated "dynamic" mapping (offset).

This helps a lot to prevent userspace memory fragmentation, but Linus didn't liked this approach and proposed instead:
  https://lkml.org/lkml/2014/5/1/368

Sadly his patch didn't worked out of the box. I did tried various ways (I'm sure it can work somehow), but I couldn't solve it yet.
Maybe some Linux mm expert could help here?

Helge   
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Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped
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On Sun, 2015-02-22 at 19:07 +0100, Helge Deller wrote:
> >>>> SHMLBA is 4096 /* (1 << PGSHIFT) */ on hpux.
> >>>>
> >>>> The following is in <asm-generic/shmparam.h>:
> >>>> #define SHMLBA PAGE_SIZE	 /* attach addr a multiple of this */
> >>>>
> >>>> Shared mappings are handled with
> >>>> asm/shmparam.h:#define SHM_COLOUR 0x00400000	/* shared mappings colouring */
> >>>
> >>> So how is the sys-v ipc problem fixed?  There the user is told to select
> >>> an address which is a multiple of SHMLBA.  Programs that do this today
> >>> will start to break on writeable mappings if we set SHMLBA to PAGE_SIZE
> >>> because the colour will be wrong.
> >>
> >>
> >> The code returns -EINVAL.  See arch_get_unmapped_area.
> >
> > But that's not a solution.  Let me try to illustrate: I have an existing
> > application, it uses sys-v ipc and selects a shmat address based on the
> > multiple of SHMLBA for a writeable mapping.  Today it works.
> 
> It will work as well with SHMBLA=4096, if you just use SHM_RND too
> (and most applications do have SHM_RND).
> man shmat says:
>   * If shmaddr isn't NULL and SHM_RND is specified in shmflg, the attach occurs at the address equal to shmaddr rounded down to the nearest multiple of SHMLBA.
> * Otherwise, shmaddr must be a page-aligned address at which the attach occurs.
> 
> So, even here shmaddr is mentioned to be page-aligned (4k), not
> SHMLBA-aligned (4M in your case).

I think that part is x86.  All the other VI architectures impose their
VI colour constrainst in SHMLBA.  We're the odd one out because we have
a huge stride (everyone else is small multiples of pages).

But agree if no applications are affected, we can make the ABI change.

> >Tomorrow
> > when you make this change, it fails with -EINVAL.  That's breaking an
> > existing application because chances are the app will just report the
> > failure and exit.
> 
> Tomorrow?  This change is *already* implemented in eglibc since a year or
> so and I don't see any applications which break because of SHMBLA=4096...

Is eglibc a big enough sample to make the claim that no applications
will be broken?

James


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On 22.02.2015 20:13, James Bottomley wrote:
> On Sun, 2015-02-22 at 19:07 +0100, Helge Deller wrote:
>>>>>> SHMLBA is 4096 /* (1 << PGSHIFT) */ on hpux.
>>>>>>
>>>>>> The following is in <asm-generic/shmparam.h>:
>>>>>> #define SHMLBA PAGE_SIZE	 /* attach addr a multiple of this */
>>>>>>
>>>>>> Shared mappings are handled with
>>>>>> asm/shmparam.h:#define SHM_COLOUR 0x00400000	/* shared mappings colouring */
>>>>>
>>>>> So how is the sys-v ipc problem fixed?  There the user is told to select
>>>>> an address which is a multiple of SHMLBA.  Programs that do this today
>>>>> will start to break on writeable mappings if we set SHMLBA to PAGE_SIZE
>>>>> because the colour will be wrong.
>>>>
>>>>
>>>> The code returns -EINVAL.  See arch_get_unmapped_area.
>>>
>>> But that's not a solution.  Let me try to illustrate: I have an existing
>>> application, it uses sys-v ipc and selects a shmat address based on the
>>> multiple of SHMLBA for a writeable mapping.  Today it works.
>>
>> It will work as well with SHMBLA=4096, if you just use SHM_RND too
>> (and most applications do have SHM_RND).
>> man shmat says:
>>    * If shmaddr isn't NULL and SHM_RND is specified in shmflg, the attach occurs at the address equal to shmaddr rounded down to the nearest multiple of SHMLBA.
>> * Otherwise, shmaddr must be a page-aligned address at which the attach occurs.
>>
>> So, even here shmaddr is mentioned to be page-aligned (4k), not
>> SHMLBA-aligned (4M in your case).
>
> I think that part is x86.  All the other VI architectures impose their
> VI colour constrainst in SHMLBA.  We're the odd one out because we have
> a huge stride (everyone else is small multiples of pages).
>
> But agree if no applications are affected, we can make the ABI change.
>
>>> Tomorrow
>>> when you make this change, it fails with -EINVAL.  That's breaking an
>>> existing application because chances are the app will just report the
>>> failure and exit.
>>
>> Tomorrow?  This change is *already* implemented in eglibc since a year or
>> so and I don't see any applications which break because of SHMBLA=4096...
>
> Is eglibc a big enough sample to make the claim that no applications
> will be broken?

Try yourself:
https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation
Just install debian 8.0 (aka unstable for hppa). KDE, Xfce, libreoffice,
and a all others packages just work out of the box.

Helge
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped
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Cc: John David Anglin <dave.anglin@bell.net>,
	Carlos O'Donell <carlos@systemhalted.org>,
	Aaro Koskinen <aaro.koskinen@iki.fi>,
	Mike Frysinger <vapier@gentoo.org>,
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To: Helge Deller <deller@gmx.de>
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On Sun, 2015-02-22 at 20:16 +0100, Helge Deller wrote:
> On 22.02.2015 20:13, James Bottomley wrote:
> > On Sun, 2015-02-22 at 19:07 +0100, Helge Deller wrote:
> >>>>>> SHMLBA is 4096 /* (1 << PGSHIFT) */ on hpux.
> >>>>>>
> >>>>>> The following is in <asm-generic/shmparam.h>:
> >>>>>> #define SHMLBA PAGE_SIZE	 /* attach addr a multiple of this */
> >>>>>>
> >>>>>> Shared mappings are handled with
> >>>>>> asm/shmparam.h:#define SHM_COLOUR 0x00400000	/* shared mappings colouring */
> >>>>>
> >>>>> So how is the sys-v ipc problem fixed?  There the user is told to select
> >>>>> an address which is a multiple of SHMLBA.  Programs that do this today
> >>>>> will start to break on writeable mappings if we set SHMLBA to PAGE_SIZE
> >>>>> because the colour will be wrong.
> >>>>
> >>>>
> >>>> The code returns -EINVAL.  See arch_get_unmapped_area.
> >>>
> >>> But that's not a solution.  Let me try to illustrate: I have an existing
> >>> application, it uses sys-v ipc and selects a shmat address based on the
> >>> multiple of SHMLBA for a writeable mapping.  Today it works.
> >>
> >> It will work as well with SHMBLA=4096, if you just use SHM_RND too
> >> (and most applications do have SHM_RND).
> >> man shmat says:
> >>    * If shmaddr isn't NULL and SHM_RND is specified in shmflg, the attach occurs at the address equal to shmaddr rounded down to the nearest multiple of SHMLBA.
> >> * Otherwise, shmaddr must be a page-aligned address at which the attach occurs.
> >>
> >> So, even here shmaddr is mentioned to be page-aligned (4k), not
> >> SHMLBA-aligned (4M in your case).
> >
> > I think that part is x86.  All the other VI architectures impose their
> > VI colour constrainst in SHMLBA.  We're the odd one out because we have
> > a huge stride (everyone else is small multiples of pages).
> >
> > But agree if no applications are affected, we can make the ABI change.
> >
> >>> Tomorrow
> >>> when you make this change, it fails with -EINVAL.  That's breaking an
> >>> existing application because chances are the app will just report the
> >>> failure and exit.
> >>
> >> Tomorrow?  This change is *already* implemented in eglibc since a year or
> >> so and I don't see any applications which break because of SHMBLA=4096...
> >
> > Is eglibc a big enough sample to make the claim that no applications
> > will be broken?
> 
> Try yourself:
> https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation
> Just install debian 8.0 (aka unstable for hppa). KDE, Xfce, libreoffice,
> and a all others packages just work out of the box.

I know, I do, but that's sort of expected: most modern linux apps use
mmap.  It's the older stuff that uses sys-v ipc, but perhaps for us this
doesn't matter.

James



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From - Thu Nov 08 21:37:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Pre-DEBIAN 8.0 install images for HPPA architecture  (debian-ports
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Hello everyone,

I've prepared some initial netboot installation medias for
	DEBIAN 8.0 on HPPA

which are available at:
	http://ftp.debian-ports.org/debian-cd/hppa/debian-8.0/

You can find the instructions on how to install Debian 8.0 on hppa in our wiki at
	https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation

The install images will install binaries from debian-ports (Debian "unstable").

Major changes include:
- Based on Debian 8.0 code base
- Full systemd support
- Linux kernel modules for SATA included
- Lots of bug fixes
- Should support all common PA-RISC hardware (on C8000 installation needs to be done via serial port)

I'm happy to get your feedback (either as bug report or successful installation report).

Helge
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From: Frank Benke <frank@mybenke.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Pre-DEBIAN 8.0 install images for HPPA architecture (debian-ports
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Cool, Thanks ;)

On Tue, Feb 24, 2015 at 6:13 PM, Helge Deller <deller@gmx.de> wrote:
> Hello everyone,
>
> I've prepared some initial netboot installation medias for
>         DEBIAN 8.0 on HPPA
>
> which are available at:
>         http://ftp.debian-ports.org/debian-cd/hppa/debian-8.0/
>
> You can find the instructions on how to install Debian 8.0 on hppa in our
> wiki at
>         https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation
>
> The install images will install binaries from debian-ports (Debian
> "unstable").
>
> Major changes include:
> - Based on Debian 8.0 code base
> - Full systemd support
> - Linux kernel modules for SATA included
> - Lots of bug fixes
> - Should support all common PA-RISC hardware (on C8000 installation needs to
> be done via serial port)
>
> I'm happy to get your feedback (either as bug report or successful
> installation report).
>
> Helge
>
>
> --
> To UNSUBSCRIBE, email to debian-hppa-REQUEST@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact
> listmaster@lists.debian.org
> Archive: https://lists.debian.org/54ECB150.80907@gmx.de
>



-- 
In theory, there is no difference between theory and practice.  In
practice, there is.

My Blogg: http://www.mybenke.org
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Xref: news.gmane.org gmane.linux.kernel.mm:129028 gmane.linux.ports.parisc:25604
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/129028>

Hi,

Here's a kernel config to reproduce the issue (no special steps needed,
just boot to userspace), and bootlog after that:

#
# Automatically generated file; DO NOT EDIT.
# Linux/parisc 4.0.0-rc1 Kernel Configuration
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_FHANDLE is not set
CONFIG_USELIB=y
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
CONFIG_SRCU=y
# CONFIG_TASKS_RCU is not set
# CONFIG_RCU_STALL_COMMON is not set
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_RCU_KTHREAD_PRIO=0
# CONFIG_BUILD_BIN2C is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=16
# CONFIG_CGROUPS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_NAMESPACES is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_RD_GZIP is not set
# CONFIG_RD_BZIP2 is not set
# CONFIG_RD_LZMA is not set
CONFIG_RD_XZ=y
# CONFIG_RD_LZO is not set
# CONFIG_RD_LZ4 is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW=y
CONFIG_BPF=y
CONFIG_EXPERT=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
# CONFIG_BPF_SYSCALL is not set
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_PCI_QUIRKS=y
CONFIG_EMBEDDED=y
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
CONFIG_COMPAT_BRK=y
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
CONFIG_OPROFILE=m
CONFIG_HAVE_OPROFILE=y
# CONFIG_UPROBES is not set
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_CLONE_BACKWARDS=y

#
# GCOV-based kernel profiling
#
# CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
# CONFIG_MODULE_COMPRESS is not set
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_BLOCK=y
CONFIG_LBDAF=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_BSGLIB=y
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_CMDLINE_PARSER is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_AIX_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_MINIX_SUBPARTITION is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_LDM_PARTITION is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_ULTRIX_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_KARMA_PARTITION is not set
# CONFIG_EFI_PARTITION is not set
# CONFIG_SYSV68_PARTITION is not set
# CONFIG_CMDLINE_PARTITION is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_DEADLINE is not set
CONFIG_IOSCHED_CFQ=y
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_BROKEN_RODATA=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
CONFIG_MLONGCALLS=y
# CONFIG_64BIT is not set
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
# CONFIG_SMP is not set
CONFIG_IRQSTACKS=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
# CONFIG_ZPOOL is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSMALLOC is not set
CONFIG_MAX_STACK_SIZE_MB=80
CONFIG_AUDIT_ARCH=y

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
# CONFIG_GSC is not set
CONFIG_PCI=y
# CONFIG_PCI_MSI is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set

#
# PCI host controller drivers
#
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
# CONFIG_PDC_CHASSIS is not set
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_XFRM_USER is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_NET_IP_TUNNEL is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_UDP_TUNNEL is not set
# CONFIG_NET_FOU is not set
# CONFIG_GENEVE is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NET_PTP_CLASSIFY is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_MMAP is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_NET_MPLS_GSO is not set
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
# CONFIG_DEVTMPFS_MOUNT is not set
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
# CONFIG_DMA_SHARED_BUFFER is not set

#
# Bus devices
#
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_RSXX is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#

#
# Altera FPGA firmware download module
#

#
# Intel MIC Bus Driver
#

#
# Intel MIC Host Driver
#

#
# Intel MIC Card Driver
#
# CONFIG_ECHO is not set
# CONFIG_CXL_BASE is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_MQ_DEFAULT is not set
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_NSP32 is not set
# CONFIG_SCSI_WD719X is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
# CONFIG_ATA is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
# CONFIG_MD_AUTODETECT is not set
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
CONFIG_MD_RAID1=y
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=y
# CONFIG_DM_SNAPSHOT is not set
# CONFIG_DM_THIN_PROVISIONING is not set
# CONFIG_DM_CACHE is not set
# CONFIG_DM_ERA is not set
# CONFIG_DM_MIRROR is not set
# CONFIG_DM_RAID is not set
# CONFIG_DM_ZERO is not set
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_UEVENT is not set
# CONFIG_DM_FLAKEY is not set
# CONFIG_DM_VERITY is not set
# CONFIG_DM_SWITCH is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
# CONFIG_NLMON is not set
# CONFIG_ARCNET is not set

#
# CAIF transport drivers
#

#
# Distributed Switch Architecture drivers
#
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_MV88E6060 is not set
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
# CONFIG_NET_DSA_MV88E6131 is not set
# CONFIG_NET_DSA_MV88E6123_61_65 is not set
# CONFIG_NET_DSA_MV88E6171 is not set
# CONFIG_NET_DSA_MV88E6352 is not set
# CONFIG_NET_DSA_BCM_SF2 is not set
CONFIG_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
CONFIG_NET_VENDOR_AGERE=y
# CONFIG_ET131X is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_ALTERA_TSE is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_XGENE is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=y
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_TULIP_NAPI is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EXAR is not set
# CONFIG_NET_VENDOR_HP is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_IP1000 is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_PACKET_ENGINE is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
CONFIG_NET_VENDOR_QUALCOMM=y
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RDC is not set
CONFIG_NET_VENDOR_ROCKER=y
CONFIG_NET_VENDOR_SAMSUNG=y
# CONFIG_SXGBE_ETH is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_SFC is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PHYLIB is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
CONFIG_USB_NET_DRIVERS=y
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1600
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1200
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ATKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
# CONFIG_MOUSE_PS2 is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
CONFIG_DEVMEM=y
CONFIG_DEVKMEM=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=2
CONFIG_SERIAL_8250_RUNTIME_UARTS=2
CONFIG_SERIAL_8250_EXTENDED=y
# CONFIG_SERIAL_8250_MANY_PORTS is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set
# CONFIG_SERIAL_8250_DW is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MFD_HSU is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_TTY_PRINTK is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_XILLYBUS is not set

#
# I2C support
#
# CONFIG_I2C is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set

#
# PPS support
#
# CONFIG_PPS is not set

#
# PPS generators support
#

#
# PTP clock support
#
# CONFIG_PTP_1588_CLOCK is not set

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_POWER_AVS is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_RTSX_USB is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_AGP is not set
# CONFIG_VGA_ARB is not set

#
# Direct Rendering Manager
#
# CONFIG_DRM is not set

#
# Frame buffer Devices
#
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_CMDLINE=y
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_STI=y
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
# CONFIG_FB_SIMPLE is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
# CONFIG_VGASTATE is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_STI_CONSOLE=y
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
# CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set
# CONFIG_LOGO_PARISC_CLUT224 is not set
# CONFIG_SOUND is not set

#
# HID support
#
CONFIG_HID=y
# CONFIG_HID_BATTERY_STRENGTH is not set
# CONFIG_HIDRAW is not set
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y

#
# Special HID drivers
#
# CONFIG_HID_A4TECH is not set
# CONFIG_HID_ACRUX is not set
# CONFIG_HID_APPLE is not set
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_AUREAL is not set
# CONFIG_HID_BELKIN is not set
# CONFIG_HID_BETOP_FF is not set
# CONFIG_HID_CHERRY is not set
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_CYPRESS is not set
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
# CONFIG_HID_ELO is not set
# CONFIG_HID_EZKEY is not set
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_HUION is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_ICADE is not set
# CONFIG_HID_TWINHAN is not set
# CONFIG_HID_KENSINGTON is not set
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LENOVO is not set
# CONFIG_HID_LOGITECH is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_NTRIG is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PENMOUNT is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PLANTRONICS is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_RMI is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_WACOM is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set

#
# USB HID support
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
# CONFIG_USB_OTG_FSM is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
# CONFIG_USB_EHCI_HCD is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_FUSBH200_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_TEST_MODE is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_ISP1760 is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set

#
# USB Physical Layer drivers
#
# CONFIG_USB_PHY is not set
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_GADGET is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_RTC_DRV_XGENE is not set

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VIRT_DRIVERS is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
CONFIG_STAGING=y
# CONFIG_COMEDI is not set
# CONFIG_RTS5208 is not set
# CONFIG_FB_SM7XX is not set
CONFIG_FB_XGI=m
# CONFIG_FT1000 is not set

#
# Speakup console speech
#
# CONFIG_SPEAKUP is not set
# CONFIG_STAGING_MEDIA is not set

#
# Android
#
# CONFIG_USB_WPAN_HCD is not set
# CONFIG_WIMAX_GDM72XX is not set
# CONFIG_LTE_GDM724X is not set
# CONFIG_LUSTRE_FS is not set
# CONFIG_DGNC is not set
# CONFIG_DGAP is not set
# CONFIG_GS_FPGABOOT is not set
# CONFIG_I2O is not set

#
# Hardware Spinlock drivers
#

#
# Clock Source drivers
#
# CONFIG_ATMEL_PIT is not set
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_SUPPORT=y

#
# Generic IOMMU Pagetable Support
#
# CONFIG_IOMMU_IO_PGTABLE_LPAE is not set

#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set

#
# Rpmsg drivers
#

#
# SOC (System On Chip) specific Drivers
#
# CONFIG_SOC_TI is not set
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set
# CONFIG_THUNDERBOLT is not set

#
# Android
#
# CONFIG_ANDROID is not set

#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT23=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_FS_DAX is not set
# CONFIG_FS_POSIX_ACL is not set
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
# CONFIG_NLS_UTF8 is not set

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set

#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_PAGE_OWNER is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_DEBUG_KERNEL=y

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Lockups and Hangs
#
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
# CONFIG_TIMER_STATS is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_STACKTRACE is not set
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_PI_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_TORTURE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_RING_BUFFER_ALLOW_SWAP=y

#
# Runtime Testing
#
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_RODATA is not set
CONFIG_SECCOMP=y

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_MCRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_CMAC is not set
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRCT10DIF is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
CONFIG_CRYPTO_SHA256=y
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_DRBG_MENU is not set
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_USER_API_RNG is not set
# CONFIG_CRYPTO_HW is not set
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
# CONFIG_HAVE_ARCH_BITREVERSE is not set
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IO=y
# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
# CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_XZ=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DQL=y
CONFIG_NLATTR=y
CONFIG_GENERIC_ATOMIC64=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
# CONFIG_AVERAGE is not set
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_ARCH_HAS_SG_CHAIN is not set

[    0.000000] Linux version 4.0.0-rc1-los_15ee+ (aaro@amd-fx-6350) (gcc version 4.9.2 (GCC) ) #1 Wed Feb 25 00:45:11 EET 2015
[    0.000000] unwind_init: start = 0x105de9e0, end = 0x10615e50, entries = 14151
[    0.000000] FP[0] enabled: Rev 1 Model 19
[    0.000000] The 32-bit Kernel has started...
[    0.000000] Default page size is 4KB.
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: System Map.
[    0.000000] model 00005dc0 00000481 00000000 00000002 777e24b2 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000203
[    0.000000] CPUID vers 19 rev 7 (0x00000267)
[    0.000000] capabilities 0x7
[    0.000000] model 9000/785/C3700
[    0.000000] Total Memory: 2048 MB
[    0.000000] initrd: 4e8be000-4ebeebcc
[    0.000000] initrd: reserving 3e8be000-3ebeebcc (mem_max 80000000)
[    0.000000] On node 0 totalpages: 524288
[    0.000000] free_area_init_node: node 0, pgdat 10670770, node_mem_map 107c5000
[    0.000000]   Normal zone: 4096 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 524288 pages, LIFO batch:31
[    0.000000] LCD display at f05d0008,f05d0000 registered
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0 
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 520192
[    0.000000] Kernel command line: root=/dev/ram console=tty0 sti=10/6/2/0 sti_font=VGA8x16 TERM=linux palo_kernel=0/vmlinuz
[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Dentry cache hash table entries: 262144 (order: 8, 1048576 bytes)
[    0.000000] Inode-cache hash table entries: 131072 (order: 7, 524288 bytes)
[    0.000000] Sorting __ex_table...
[    0.000000] Memory: 2067996K/2097152K available (4052K kernel code, 588K rwdata, 782K rodata, 152K init, 186K bss, 29156K reserved, 0K cma-reserved)
[    0.000000] virtual kernel memory layout:
[    0.000000]     vmalloc : 0x00008000 - 0x0f000000   ( 239 MB)
[    0.000000]     memory  : 0x10000000 - 0x90000000   (2048 MB)
[    0.000000]       .init : 0x10100000 - 0x10126000   ( 152 kB)
[    0.000000]       .data : 0x1051b000 - 0x10671ab0   (1370 kB)
[    0.000000]       .text : 0x10126000 - 0x1051b000   (4052 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS:48
[    0.000000] Console: colour dummy device 160x64
[    0.010000] console [tty0] enabled
[    0.020000] bootconsole [ttyB0] disabled
[    0.020000] Calibrating delay loop... 1495.85 BogoMIPS (lpj=7479296)
[    0.060000] pid_max: default: 32768 minimum: 301
[    0.060000] Mount-cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.060000] Mountpoint-cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.060000] devtmpfs: initialized
[    0.060000] NET: Registered protocol family 16
[    0.060000] Searching for devices...
[    0.290000] Found devices:
[    0.290000] 1. Astro BC Runway Port at 0xfed00000 [10] { 12, 0x0, 0x582, 0x0000b }
[    0.290000] 2. Elroy PCI Bridge at 0xfed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
[    0.290000] 3. Elroy PCI Bridge at 0xfed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
[    0.290000] 4. Elroy PCI Bridge at 0xfed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
[    0.290000] 5. Elroy PCI Bridge at 0xfed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
[    0.290000] 6. Allegro W2 at 0xfffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
[    0.290000] 7. Memory at 0xfed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
[    0.420000] CPU(s): 1 x PA8700 (PCX-W2) at 750.000000 MHz
[    0.420000] Whole cache flush 956011 cycles, flushing 5745144 bytes 1136860 cycles
[    0.420000] Setting cache flush threshold to c00 (1 CPUs online)
[    0.450000] SBA found Astro 2.1 at 0xfed00000
[    0.450000] Elroy version TR4.0 (0x5) found at 0xfed30000
[    0.460000] LBA 10:0: PCI host bridge to bus 0000:00
[    0.460000] pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
[    0.460000] pci_bus 0000:00: root bus resource [mem 0xf2000000-0xf23fffff]
[    0.460000] pci_bus 0000:00: root bus resource [bus 00]
[    0.460000] pci 0000:00:0c.0: [1011:0019] type 00 class 0x020000
[    0.460000] pci 0000:00:0c.0: reg 0x10: [io  0x1000-0x107f]
[    0.460000] pci 0000:00:0c.0: reg 0x14: [mem 0xf2008000-0xf20083ff]
[    0.460000] pci 0000:00:0c.0: reg 0x30: [mem 0xf2040000-0xf207ffff pref]
[    0.460000] pci 0000:00:0d.0: [11d4:1889] type 00 class 0x040100
[    0.460000] pci 0000:00:0d.0: reg 0x10: [mem 0xf200c000-0xf200c1ff pref]
[    0.460000] pci 0000:00:0d.0: reg 0x14: [mem 0xf200b000-0xf200b00f pref]
[    0.460000] pci 0000:00:0d.0: reg 0x18: [mem 0xf200a000-0xf200a00f pref]
[    0.460000] pci 0000:00:0d.0: reg 0x1c: [mem 0xf2009000-0xf200900f pref]
[    0.460000] pci 0000:00:0d.0: supports D2
[    0.460000] pci 0000:00:0e.0: [100b:0002] type 00 class 0x01018a
[    0.460000] PCI: Enabled native mode for NS87415 (pif=0x8f)
[    0.460000] pci 0000:00:0e.0: reg 0x10: [io  0x0f00-0x0f07]
[    0.460000] pci 0000:00:0e.0: reg 0x14: [io  0x0e00-0x0e03]
[    0.460000] pci 0000:00:0e.0: reg 0x18: [io  0x0d00-0x0d07]
[    0.460000] pci 0000:00:0e.0: reg 0x1c: [io  0x0b00-0x0b03]
[    0.460000] pci 0000:00:0e.0: reg 0x20: [io  0x0a00-0x0a0f]
[    0.460000] pci 0000:00:0e.1: [100b:000e] type 00 class 0x068000
[    0.460000] pci 0000:00:0e.2: [100b:0012] type 00 class 0x0c0310
[    0.460000] pci 0000:00:0e.2: reg 0x10: [mem 0xf2007000-0xf2007fff]
[    0.460000] pci 0000:00:0e.2: reg 0x14: [mem 0xf2006000-0xf2006fff]
[    0.460000] pci 0000:00:0f.0: [1000:000b] type 00 class 0x010000
[    0.460000] pci 0000:00:0f.0: reg 0x10: [io  0x0900-0x09ff]
[    0.460000] pci 0000:00:0f.0: reg 0x14: [mem 0xf2005000-0xf20053ff 64bit]
[    0.460000] pci 0000:00:0f.0: reg 0x1c: [mem 0xf2002000-0xf2003fff 64bit]
[    0.460000] pci 0000:00:0f.0: supports D1 D2
[    0.460000] pci 0000:00:0f.1: [1000:000b] type 00 class 0x010000
[    0.460000] pci 0000:00:0f.1: reg 0x10: [io  0x0800-0x08ff]
[    0.460000] pci 0000:00:0f.1: reg 0x14: [mem 0xf2004000-0xf20043ff 64bit]
[    0.460000] pci 0000:00:0f.1: reg 0x1c: [mem 0xf2000000-0xf2001fff 64bit]
[    0.460000] pci 0000:00:0f.1: supports D1 D2
[    0.460000] Elroy version TR4.0 (0x5) found at 0xfed32000
[    0.460000] LBA 10:1: PCI host bridge to bus 0000:01
[    0.460000] pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
[    0.460000] pci_bus 0000:01: root bus resource [mem 0xf8000000-0xfbffffff]
[    0.460000] pci_bus 0000:01: root bus resource [mem 0xf2400000-0xf27fffff]
[    0.460000] pci_bus 0000:01: root bus resource [bus 01]
[    0.460000] pci 0000:01:06.0: [18ca:0020] type 00 class 0x030000
[    0.460000] pci 0000:01:06.0: reg 0x10: [mem 0xf8000000-0xfbffffff pref]
[    0.460000] pci 0000:01:06.0: reg 0x14: [mem 0xf2400000-0xf243ffff]
[    0.460000] pci 0000:01:06.0: reg 0x18: [io  0x12000-0x1207f]
[    0.460000] pci 0000:01:06.0: reg 0x30: [mem 0xf2440000-0xf2447fff pref]
[    0.460000] pci 0000:01:06.0: supports D1 D2
[    0.460000] iosapic: hpa not registered for 0000:01:06.0
[    0.460000] Elroy version TR4.0 (0x5) found at 0xfed38000
[    0.460000] LBA 10:4: PCI host bridge to bus 0000:02
[    0.460000] pci_bus 0000:02: root bus resource [io  0x28000-0x29fff] (bus address [0x8000-0x9fff])
[    0.460000] pci_bus 0000:02: root bus resource [mem 0xf3000000-0xf33fffff]
[    0.460000] pci_bus 0000:02: root bus resource [bus 02]
[    0.460000] Elroy version TR4.0 (0x5) found at 0xfed3c000
[    0.460000] LBA 10:6: PCI host bridge to bus 0000:03
[    0.460000] pci_bus 0000:03: root bus resource [io  0x3c000-0x3dfff] (bus address [0xc000-0xdfff])
[    0.460000] pci_bus 0000:03: root bus resource [mem 0xf6000000-0xf7ffffff]
[    0.460000] pci_bus 0000:03: root bus resource [mem 0xf3800000-0xf3bfffff]
[    0.460000] pci_bus 0000:03: root bus resource [bus 03]
[    0.470000] pci 0000:03:02.0: [103c:1008] type 00 class 0x038000
[    0.470000] pci 0000:03:02.0: reg 0x10: [mem 0xf6000000-0xf7ffffff 64bit]
[    0.470000] pci 0000:03:02.0: reg 0x30: [mem 0xf3800000-0xf39fffff pref]
[    0.470000] iosapic: hpa not registered for 0000:03:02.0
[    0.470000] powersw: Soft power switch at 0xf0400804 enabled.
[    0.480000] SCSI subsystem initialized
[    0.480000] usbcore: registered new interface driver usbfs
[    0.490000] usbcore: registered new interface driver hub
[    0.490000] usbcore: registered new device driver usb
[    0.490000] Switched to clocksource cr16
[    0.500000] NET: Registered protocol family 2
[    0.500000] TCP established hash table entries: 16384 (order: 4, 65536 bytes)
[    0.500000] TCP bind hash table entries: 16384 (order: 4, 65536 bytes)
[    0.500000] TCP: Hash tables configured (established 16384 bind 16384)
[    0.500000] TCP: reno registered
[    0.500000] UDP hash table entries: 1024 (order: 2, 16384 bytes)
[    0.500000] UDP-Lite hash table entries: 1024 (order: 2, 16384 bytes)
[    0.500000] NET: Registered protocol family 1
[    0.500000] PCI: CLS 64 bytes
[    0.500000] SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 19)
[    0.500000] SuperIO: Serial port 1 at 0x3f8
[    0.500000] SuperIO: Serial port 2 at 0x2f8
[    0.500000] SuperIO: Parallel port at 0x378
[    0.500000] SuperIO: Floppy controller at 0x3f0
[    0.500000] SuperIO: ACPI at 0x7e0
[    0.500000] SuperIO: USB regulator enabled
[    0.500000] Unpacking initramfs...
[    3.160000] Freeing initrd memory: 3264K (4e8be000 - 4ebee000)
[    3.160000] Enabling PDC chassis warnings support v0.05
[    3.160000] futex hash table entries: 256 (order: -1, 3072 bytes)
[    3.170000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.190000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.200000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.210000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.220000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.230000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.240000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.250000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.260000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.270000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.280000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.290000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.300000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.310000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.320000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.340000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.350000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.360000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.370000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.380000] BUG: non-zero nr_pmds on freeing mm: -5
[    3.390000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.400000] BUG: non-zero nr_pmds on freeing mm: -5
[    3.410000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.420000] BUG: non-zero nr_pmds on freeing mm: -5
[    3.430000] BUG: non-zero nr_pmds on freeing mm: -5
[    3.440000] BUG: non-zero nr_pmds on freeing mm: -5
[    3.450000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.460000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.470000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.480000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.490000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[    3.500000] io scheduler noop registered
[    3.500000] io scheduler cfq registered (default)
[    3.500000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.510000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.510000] BUG: non-zero nr_pmds on freeing mm: -6
[    3.520000] PDC Stable Storage facility v0.30
[    3.850000] STI GSC/PCI core graphics driver Version 0.9b
[    3.860000] STI PCI graphic ROM found at f3800000 (2048 kB), fb at f6000000 (32 MB)
[    3.920000] STI ROM supports 32 and 64 bit firmware functions.
[    3.920000] STI selected 8x16 framebuffer font VGA8x16 for sticon
[    3.920000]     id 35acda30-9a02587, conforms to spec rev. 8.0d
[    4.050000]     graphics card name: A1299B
[    4.050000] sticon: Initializing STI text console.
[    4.050000] Console: switching to colour STI console 160x64
[    4.180000] stifb: 'A1299B' (id: 0x35acda30) not supported.
[    4.200000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.220000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.240000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.260000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.270000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.290000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.310000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.330000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.350000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.370000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.390000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.400000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.410000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.430000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.450000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.470000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.490000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.510000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.530000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.550000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.560000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.580000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.590000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.600000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.620000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.630000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.640000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.650000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.660000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.670000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.670000] BUG: non-zero nr_pmds on freeing mm: -5
[    4.680000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.690000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.700000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.710000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.720000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.720000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.730000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.750000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.760000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.760000] Serial: 8250/16550 driver, 2 ports, IRQ sharing enabled
[    4.770000] serial8250: ttyS0 at I/O 0x3f8 (irq = 3, base_baud = 115200) is a 16550A
[    4.780000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.790000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.810000] serial8250: ttyS1 at I/O 0x2f8 (irq = 4, base_baud = 115200) is a 16550A
[    4.810000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.830000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.850000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.860000] BUG: non-zero nr_pmds on freeing mm: -5
[    4.880000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.890000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.910000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.920000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.940000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.950000] BUG: non-zero nr_pmds on freeing mm: -6
[    4.970000] BUG: non-zero nr_pmds on freeing mm: -5
[    4.980000] BUG: non-zero nr_pmds on freeing mm: -6
[    5.000000] BUG: non-zero nr_pmds on freeing mm: -6
[    5.020000] BUG: non-zero nr_pmds on freeing mm: -6
[    5.030000] BUG: non-zero nr_pmds on freeing mm: -6
[    5.050000] BUG: non-zero nr_pmds on freeing mm: -6
[    5.060000] BUG: non-zero nr_pmds on freeing mm: -6
[    5.080000] BUG: non-zero nr_pmds on freeing mm: -6
[    5.090000] BUG: non-zero nr_pmds on freeing mm: -5
[    5.110000] BUG: non-zero nr_pmds on freeing mm: -6
[    5.120000] loop: module loaded
[    5.350000] sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 20
[    5.360000] BUG: non-zero nr_pmds on freeing mm: -5
[    5.380000] BUG: non-zero nr_pmds on freeing mm: -6
[    5.390000] BUG: non-zero nr_pmds on freeing mm: -5
[    5.410000] sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
[    5.420000] sym0: SCSI BUS has been reset.
[    5.430000] sym0: SCSI BUS mode change from SE to SE.
[    5.430000] sym0: SCSI BUS has been reset.
[    5.440000] scsi host0: sym-2.2.3
[    5.450000] BUG: non-zero nr_pmds on freeing mm: -6
[    5.470000] BUG: non-zero nr_pmds on freeing mm: -6
[    5.480000] BUG: non-zero nr_pmds on freeing mm: -6
[   11.210000] sym1: <896> rev 0x7 at pci 0000:00:0f.1 irq 20
[   11.220000] sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
[   11.230000] sym1: SCSI BUS has been reset.
[   11.240000] scsi host1: sym-2.2.3
[   11.250000] BUG: non-zero nr_pmds on freeing mm: -6
[   11.260000] BUG: non-zero nr_pmds on freeing mm: -5
[   11.280000] BUG: non-zero nr_pmds on freeing mm: -6
[   15.690000] scsi target1:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
[   15.700000] scsi 1:0:5:0: Direct-Access     IBM-ESXS ST373307LC    FN B25J PQ: 0 ANSI: 3
[   15.710000] scsi target1:0:5: tagged command queuing enabled, command queue depth 16.
[   15.710000] scsi target1:0:5: Beginning Domain Validation
[   15.730000] scsi target1:0:5: Domain Validation skipping write tests
[   15.730000] scsi target1:0:5: Ending Domain Validation
[   15.740000] BUG: non-zero nr_pmds on freeing mm: -5
[   15.760000] BUG: non-zero nr_pmds on freeing mm: -6
[   15.780000] BUG: non-zero nr_pmds on freeing mm: -6
[   15.800000] BUG: non-zero nr_pmds on freeing mm: -6
[   15.810000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.420000] sd 1:0:5:0: Attached scsi generic sg0 type 0
[   18.430000] Linux Tulip driver version 1.1.15 (Feb 27, 2007)
[   18.440000] tulip0: no phy info, aborting mtable build
[   18.450000] tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1
[   18.460000] net eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xf2008000, 00:30:6e:2b:09:84, IRQ 17
[   18.470000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[   18.470000] ohci-pci: OHCI PCI platform driver
[   18.480000] ohci-pci 0000:00:0e.2: OHCI PCI host controller
[   18.490000] ohci-pci 0000:00:0e.2: new USB bus registered, assigned bus number 1
[   18.490000] ohci-pci 0000:00:0e.2: irq 1, io mem 0xf2007000
[   18.500000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.520000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.540000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.560000] BUG: non-zero nr_pmds on freeing mm: -5
[   18.570000] sd 1:0:5:0: [sda] 143374000 512-byte logical blocks: (73.4 GB/68.3 GiB)
[   18.580000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.590000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.610000] BUG: non-zero nr_pmds on freeing mm: -5
[   18.620000] sd 1:0:5:0: [sda] Write Protect is off
[   18.620000] sd 1:0:5:0: [sda] Mode Sense: b3 00 10 08
[   18.620000] sd 1:0:5:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   18.640000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.650000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.660000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.670000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.680000]  sda: sda1 sda2 sda3
[   18.700000] hub 1-0:1.0: USB hub found
[   18.700000] hub 1-0:1.0: 3 ports detected
[   18.730000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.740000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.750000] usbcore: registered new interface driver usb-storage
[   18.760000] sd 1:0:5:0: [sda] Attached SCSI disk
[   18.770000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.790000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.800000] mousedev: PS/2 mouse device common for all mice
[   18.810000] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[   18.810000] md: raid1 personality registered for level 1
[   18.830000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.840000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.860000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.870000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.880000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.900000] BUG: non-zero nr_pmds on freeing mm: -5
[   18.910000] device-mapper: ioctl: 4.30.0-ioctl (2014-12-22) initialised: dm-devel@redhat.com
[   18.910000] usbcore: registered new interface driver usbhid
[   18.920000] usbhid: USB HID core driver
[   18.930000] TCP: cubic registered
[   18.930000] NET: Registered protocol family 17
[   18.940000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.950000] BUG: non-zero nr_pmds on freeing mm: -5
[   18.970000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.980000] BUG: non-zero nr_pmds on freeing mm: -6
[   18.990000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.020000] rtc-generic rtc-generic: setting system clock to 2015-02-24 22:53:53 UTC (1424818433)
[   19.020000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.040000] Freeing unused kernel memory: 152K (10100000 - 10126000)
[   19.050000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.070000] BUG: non-zero nr_pmds on freeing mm: -7
[   19.080000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.080000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.100000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.110000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.130000] usb 1-2: new full-speed USB device number 2 using ohci-pci
[   19.140000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.150000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.160000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.170000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.180000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.190000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.210000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.220000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.230000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.240000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.250000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.260000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.280000] BUG: non-zero nr_pmds on freeing mm: -7
[   19.290000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.300000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.310000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.320000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.330000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.350000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.360000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.370000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.390000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.400000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.410000] hub 1-2:1.0: USB hub found
[   19.410000] hub 1-2:1.0: 3 ports detected
[   19.430000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.440000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.460000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.470000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.480000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.490000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.500000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.520000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.530000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.540000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.550000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.570000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.580000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.590000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.600000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.610000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.630000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.640000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.660000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.680000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.690000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.700000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.760000] BUG: non-zero nr_pmds on freeing mm: -10
[   19.770000] usb 1-2.3: new full-speed USB device number 3 using ohci-pci
[   19.770000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.780000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.790000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.800000] BUG: non-zero nr_pmds on freeing mm: -5
[   19.950000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.960000] input: Cherry GmbH                     Cherry Multiboard               as /devices/parisc/10/10:0/pci0000:00/0000:00:0e.2/usb1/1-2/1-2.3/1-2.3:1.0/0003:046A:0016.0001/input/input0
[   19.980000] BUG: non-zero nr_pmds on freeing mm: -6
[   19.990000] BUG: non-zero nr_pmds on freeing mm: -6
[   20.030000] hid-generic 0003:046A:0016.0001: input: USB HID v1.11 Keyboard [Cherry GmbH                     Cherry Multiboard              ] on usb-0000:00:0e.2-2.3/input0
[   20.060000] BUG: non-zero nr_pmds on freeing mm: -6
[   20.070000] hid-generic 0003:046A:0016.0002: device has no listeners, quitting
[   20.080000] BUG: non-zero nr_pmds on freeing mm: -6
[   21.840000] BUG: non-zero nr_pmds on freeing mm: -6
[   21.850000] BUG: non-zero nr_pmds on freeing mm: -5
[   21.860000] BUG: non-zero nr_pmds on freeing mm: -6
[   21.870000] BUG: non-zero nr_pmds on freeing mm: -5
[   21.880000] BUG: non-zero nr_pmds on freeing mm: -6
[   21.890000] BUG: non-zero nr_pmds on freeing mm: -5
[   21.910000] BUG: non-zero nr_pmds on freeing mm: -5
[   21.920000] BUG: non-zero nr_pmds on freeing mm: -5
[   21.940000] BUG: non-zero nr_pmds on freeing mm: -6
[   22.020000] BUG: non-zero nr_pmds on freeing mm: -10
[   22.030000] BUG: non-zero nr_pmds on freeing mm: -7
[   22.040000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.050000] EXT4-fs (sda3): couldn't mount as ext3 due to feature incompatibilities
[   22.060000] EXT4-fs (sda3): couldn't mount as ext2 due to feature incompatibilities
[   22.110000] EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
[   22.120000] BUG: non-zero nr_pmds on freeing mm: -6
[   22.180000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.190000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.200000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.220000] BUG: non-zero nr_pmds on freeing mm: -6
[   22.250000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.270000] BUG: non-zero nr_pmds on freeing mm: -6
[   22.280000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.300000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.310000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.330000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.340000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.360000] BUG: non-zero nr_pmds on freeing mm: -6
[   22.370000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.380000] BUG: non-zero nr_pmds on freeing mm: -6
[   22.390000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.410000] BUG: non-zero nr_pmds on freeing mm: -6
[   22.420000] BUG: non-zero nr_pmds on freeing mm: -6
[   22.480000] BUG: non-zero nr_pmds on freeing mm: -6
[   22.760000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.820000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.830000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.850000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.860000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.880000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.940000] BUG: non-zero nr_pmds on freeing mm: -5
[   22.950000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.010000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.020000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.020000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.030000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.060000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.080000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.090000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.110000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.130000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.150000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.160000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.170000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.180000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.190000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.210000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.220000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.240000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.250000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.260000] BUG: non-zero nr_pmds on freeing mm: -4
[   23.280000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.300000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.310000] BUG: non-zero nr_pmds on freeing mm: -4
[   23.330000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.340000] BUG: non-zero nr_pmds on freeing mm: -4
[   23.350000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.360000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.370000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.380000] BUG: non-zero nr_pmds on freeing mm: -4
[   23.400000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.410000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.420000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.430000] BUG: non-zero nr_pmds on freeing mm: -4
[   23.440000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.460000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.470000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.480000] BUG: non-zero nr_pmds on freeing mm: -4
[   23.490000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.500000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.510000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.520000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.530000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.540000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.550000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.560000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.570000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.590000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.600000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.610000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.630000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.650000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.690000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.700000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.730000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.740000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.760000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.770000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.780000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.790000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.810000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.830000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.830000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.850000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.860000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.870000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.880000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.890000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.900000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.920000] BUG: non-zero nr_pmds on freeing mm: -4
[   23.950000] BUG: non-zero nr_pmds on freeing mm: -6
[   23.960000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.970000] BUG: non-zero nr_pmds on freeing mm: -5
[   23.990000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.000000] EXT4-fs (sda1): mounting ext2 file system using the ext4 subsystem
[   24.020000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.020000] EXT4-fs (sda1): warning: mounting unchecked fs, running e2fsck is recommended
[   24.030000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.040000] EXT4-fs (sda1): mounted filesystem without journal. Opts: (null)
[   24.050000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.060000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.070000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.090000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.100000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.110000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.130000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.140000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.160000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.180000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.180000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.200000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.210000] Adding 4008212k swap on /dev/sda2.  Priority:-1 extents:1 across:4008212k 
[   24.210000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.230000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.240000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.250000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.260000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.280000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.290000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.300000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.310000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.320000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.340000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.340000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.360000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.370000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.390000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.410000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.430000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.460000] BUG: non-zero nr_pmds on freeing mm: -4
[   24.650000] random: dropbear urandom read with 111 bits of entropy available
[   24.660000] BUG: non-zero nr_pmds on freeing mm: -6
[   24.680000] BUG: non-zero nr_pmds on freeing mm: -4
[   24.710000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.730000] BUG: non-zero nr_pmds on freeing mm: -5
[   24.740000] BUG: non-zero nr_pmds on freeing mm: -7
[   24.750000] BUG: non-zero nr_pmds on freeing mm: -4
[   24.760000] BUG: non-zero nr_pmds on freeing mm: -5
[   27.120000] net eth0: Setting full-duplex based on MII#1 link partner capability of c5e1
[   29.190000] random: nonblocking pool is initialized
[   67.630000] BUG: non-zero nr_pmds on freeing mm: -8
[   67.660000] BUG: non-zero nr_pmds on freeing mm: -5
[   67.670000] BUG: non-zero nr_pmds on freeing mm: -6
[   69.730000] BUG: non-zero nr_pmds on freeing mm: -6
[   69.740000] BUG: non-zero nr_pmds on freeing mm: -6
[   69.770000] BUG: non-zero nr_pmds on freeing mm: -6
[  109.940000] BUG: non-zero nr_pmds on freeing mm: -6
[  112.650000] BUG: non-zero nr_pmds on freeing mm: -6

A.

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Subject: Re: 4.0-rc1/PARISC: BUG: non-zero nr_pmds on freeing mm
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On Wed, Feb 25, 2015 at 12:54:54AM +0200, Aaro Koskinen wrote:
> Hi,
> 
> Here's a kernel config to reproduce the issue (no special steps needed,
> just boot to userspace), and bootlog after that:
> 
> #
> # Automatically generated file; DO NOT EDIT.
> # Linux/parisc 4.0.0-rc1 Kernel Configuration
...
> [   18.940000] BUG: non-zero nr_pmds on freeing mm: -6

It happens due missing __PAGETABLE_PMD_FOLDED in custom page table
folding. This has been fixed in CONFIG_PGTABLE_LEVELS patcheset.

Andrew, are you going to submit that patchset to Linus in this cycle?
If not, I can prepare a patchset which only adds missing
__PAGETABLE_PUD_FOLDED and __PAGETABLE_PMD_FOLDED.

-- 
 Kirill A. Shutemov

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm
Subject: Re: 4.0-rc1/PARISC: BUG: non-zero nr_pmds on freeing mm
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On Wed, 25 Feb 2015 22:21:30 +0200 "Kirill A. Shutemov" <kirill@shutemov.name> wrote:

> On Wed, Feb 25, 2015 at 12:54:54AM +0200, Aaro Koskinen wrote:
> > Hi,
> > 
> > Here's a kernel config to reproduce the issue (no special steps needed,
> > just boot to userspace), and bootlog after that:
> > 
> > #
> > # Automatically generated file; DO NOT EDIT.
> > # Linux/parisc 4.0.0-rc1 Kernel Configuration
> ...
> > [   18.940000] BUG: non-zero nr_pmds on freeing mm: -6
> 
> It happens due missing __PAGETABLE_PMD_FOLDED in custom page table
> folding. This has been fixed in CONFIG_PGTABLE_LEVELS patcheset.
> 
> Andrew, are you going to submit that patchset to Linus in this cycle?

I wasn't planning on doing so - the changelog didn't say anything about
fixing any regressions.

> If not, I can prepare a patchset which only adds missing
> __PAGETABLE_PUD_FOLDED and __PAGETABLE_PMD_FOLDED.

Something simple would be preferred, but I don't know how much simpler
the above would be?

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From - Thu Nov 08 21:37:18 2018
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From: "Kirill A. Shutemov" <kirill@shutemov.name>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.parisc
Subject: Re: 4.0-rc1/PARISC: BUG: non-zero nr_pmds on freeing mm
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On Wed, Feb 25, 2015 at 12:30:48PM -0800, Andrew Morton wrote:
> On Wed, 25 Feb 2015 22:21:30 +0200 "Kirill A. Shutemov" <kirill@shutemov.name> wrote:
> 
> > On Wed, Feb 25, 2015 at 12:54:54AM +0200, Aaro Koskinen wrote:
> > > Hi,
> > > 
> > > Here's a kernel config to reproduce the issue (no special steps needed,
> > > just boot to userspace), and bootlog after that:
> > > 
> > > #
> > > # Automatically generated file; DO NOT EDIT.
> > > # Linux/parisc 4.0.0-rc1 Kernel Configuration
> > ...
> > > [   18.940000] BUG: non-zero nr_pmds on freeing mm: -6
> > 
> > It happens due missing __PAGETABLE_PMD_FOLDED in custom page table
> > folding. This has been fixed in CONFIG_PGTABLE_LEVELS patcheset.
> > 
> > Andrew, are you going to submit that patchset to Linus in this cycle?
> 
> I wasn't planning on doing so - the changelog didn't say anything about
> fixing any regressions.

My bad. Patch 18/19 of the patchset introduced assert which checks that
folded macros are not missed and fixed all cases which trigger it.

> > If not, I can prepare a patchset which only adds missing
> > __PAGETABLE_PUD_FOLDED and __PAGETABLE_PMD_FOLDED.
> 
> Something simple would be preferred, but I don't know how much simpler
> the above would be?

Not much simplier: __PAGETABLE_PMD_FOLDED is missing in frv, m32r, m68k,
mn10300, parisc and s390.

-- 
 Kirill A. Shutemov

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From: Andrew Morton <akpm@linux-foundation.org>
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Subject: Re: 4.0-rc1/PARISC: BUG: non-zero nr_pmds on freeing mm
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Cc: Aaro Koskinen <aaro.koskinen@iki.fi>,
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On Wed, 25 Feb 2015 22:47:43 +0200 "Kirill A. Shutemov" <kirill@shutemov.name> wrote:

> > > If not, I can prepare a patchset which only adds missing
> > > __PAGETABLE_PUD_FOLDED and __PAGETABLE_PMD_FOLDED.
> > 
> > Something simple would be preferred, but I don't know how much simpler
> > the above would be?
> 
> Not much simplier: __PAGETABLE_PMD_FOLDED is missing in frv, m32r, m68k,
> mn10300, parisc and s390.

I don't really know what's going on here.  Let's rewind a bit, please. 
What is the bug, what causes it, which commit caused it and why the
heck does it require a massive patchset to fix 4.0?

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Subject: Re: 4.0-rc1/PARISC: BUG: non-zero nr_pmds on freeing mm
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On Wed, Feb 25, 2015 at 01:31:40PM -0800, Andrew Morton wrote:
> On Wed, 25 Feb 2015 22:47:43 +0200 "Kirill A. Shutemov" <kirill@shutemov.name> wrote:
> 
> > > > If not, I can prepare a patchset which only adds missing
> > > > __PAGETABLE_PUD_FOLDED and __PAGETABLE_PMD_FOLDED.
> > > 
> > > Something simple would be preferred, but I don't know how much simpler
> > > the above would be?
> > 
> > Not much simplier: __PAGETABLE_PMD_FOLDED is missing in frv, m32r, m68k,
> > mn10300, parisc and s390.
> 
> I don't really know what's going on here.  Let's rewind a bit, please. 
> What is the bug, what causes it, which commit caused it and why the
> heck does it require a massive patchset to fix 4.0?

PMD accounting happens in __pmd_alloc() and free_pmd_range(). PMD
accounting only makes sense on architectures with 3 or more page tables
levels. We use __PAGETABLE_PMD_FOLDED to check whether the PMD page table
level exists.

Unfortunately, some architectures don't use <asm-generic/pgtable-nopmd.h>
to indicate that PMD level doesn't exists and fold it in a custom way.
Some of them don't define __PAGETABLE_PMD_FOLDED as pgtable-nopmd.h does.

Missing __PAGETABLE_PMD_FOLDED causes undeflow of mm->nr_pmds:
__pmd_alloc() is never called, but we decrement mm->nr_pmds in
free_pmd_range().

These architecures need to be fixed to define __PAGETABLE_PMD_FOLDED too.

I can do in one patch if you want. Or split per-arch. After that
CONFIG_PGTABLE_LEVELS patchset will require rebasing.

-- 
 Kirill A. Shutemov

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From - Thu Nov 08 21:37:18 2018
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On Wed, 25 Feb 2015 23:57:57 +0200 "Kirill A. Shutemov" <kirill@shutemov.name> wrote:

> On Wed, Feb 25, 2015 at 01:31:40PM -0800, Andrew Morton wrote:
> > On Wed, 25 Feb 2015 22:47:43 +0200 "Kirill A. Shutemov" <kirill@shutemov.name> wrote:
> > 
> > > > > If not, I can prepare a patchset which only adds missing
> > > > > __PAGETABLE_PUD_FOLDED and __PAGETABLE_PMD_FOLDED.
> > > > 
> > > > Something simple would be preferred, but I don't know how much simpler
> > > > the above would be?
> > > 
> > > Not much simplier: __PAGETABLE_PMD_FOLDED is missing in frv, m32r, m68k,
> > > mn10300, parisc and s390.
> > 
> > I don't really know what's going on here.  Let's rewind a bit, please. 
> > What is the bug, what causes it, which commit caused it and why the
> > heck does it require a massive patchset to fix 4.0?
> 
> PMD accounting happens in __pmd_alloc() and free_pmd_range(). PMD
> accounting only makes sense on architectures with 3 or more page tables
> levels. We use __PAGETABLE_PMD_FOLDED to check whether the PMD page table
> level exists.
> 
> Unfortunately, some architectures don't use <asm-generic/pgtable-nopmd.h>
> to indicate that PMD level doesn't exists and fold it in a custom way.
> Some of them don't define __PAGETABLE_PMD_FOLDED as pgtable-nopmd.h does.
> 
> Missing __PAGETABLE_PMD_FOLDED causes undeflow of mm->nr_pmds:
> __pmd_alloc() is never called, but we decrement mm->nr_pmds in
> free_pmd_range().
> 
> These architecures need to be fixed to define __PAGETABLE_PMD_FOLDED too.
> 
> I can do in one patch if you want. Or split per-arch. After that
> CONFIG_PGTABLE_LEVELS patchset will require rebasing.

I guess one patch will be OK - arch maintainers will be able
review/apply/test that easily enough.
--
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From: Yijing Wang <wangyijing@huawei.com>
Newsgroups: gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.ports.parisc
Subject: [PATCH v3 22/30] PCI/Parisc: Use pci_scan_root_bus() for simplicity
Date: Thu, 26 Feb 2015 09:29:39 +0800
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Cc: Jiang Liu <jiang.liu@linux.intel.com>, <linux-pci@vger.kernel.org>,
	Yinghai Lu <yinghai@kernel.org>,
	<linux-kernel@vger.kernel.org>,
	Marc Zyngier <marc.zyngier@arm.com>,
	<linux-arm-kernel@lists.infradead.org>,
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	"Arnd Bergmann" <arnd@arndb.de>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	"Yijing Wang" <wangyijing@huawei.com>,
	Yijing Wang <wangyijing0307@gmail.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	<linux-parisc@vger.kernel.org>
To: Bjorn Helgaas <bhelgaas@google.com>
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From: Yijing Wang <wangyijing0307@gmail.com>

Now pci_bus_add_devices() has been ripped out
from pci_scan_root_bus(), we could use pci_scan_root_bus()
instead of pci_create_root_bus() + pci_scan_child_bus()
for simplicity. We could also remove the pci bus
resource(dino_current_bus,255) and pci_bus_update_busn_res_end(),
because pci_scan_root_bus() would do the same thing.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |   11 ++---------
 drivers/parisc/lba_pci.c |    7 ++-----
 2 files changed, 4 insertions(+), 14 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index a0580af..e5ee339 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -977,15 +977,11 @@ static int __init dino_probe(struct parisc_device *dev)
 	if (dino_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
 
-	dino_dev->hba.bus_num.start = dino_current_bus;
-	dino_dev->hba.bus_num.end = 255;
-	dino_dev->hba.bus_num.flags = IORESOURCE_BUS;
-	pci_add_resource(&resources, &dino_dev->hba.bus_num);
 	/*
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev,
+	dino_dev->hba.hba_bus = bus = pci_scan_root_bus(&dev->dev,
 			 dino_current_bus, &dino_cfg_ops, NULL, &resources);
 	if (!bus) {
 		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
@@ -996,13 +992,10 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
-	max = pci_scan_child_bus(bus);
-	pci_bus_update_busn_res_end(bus, max);
-
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
 	 */
-	dino_current_bus = max + 1;
+	dino_current_bus = bus->busn_res.end + 1;
 	pci_bus_assign_resources(bus);
 	pci_bus_add_devices(bus);
 	return 0;
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index dceb9dd..ba6daec 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1422,7 +1422,6 @@ lba_driver_probe(struct parisc_device *dev)
 	void *tmp_obj;
 	char *version;
 	void __iomem *addr = ioremap_nocache(dev->hpa.start, 4096);
-	int max;
 
 	/* Read HW Rev First */
 	func_class = READ_REG32(addr + LBA_FCLASS);
@@ -1563,15 +1562,13 @@ lba_driver_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
-		pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
+		pci_scan_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
 				    cfg_ops, NULL, &resources);
 	if (!lba_bus) {
 		pci_free_resource_list(&resources);
 		return 0;
 	}
 
-	max = pci_scan_child_bus(lba_bus);
-
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
 		/* assign resources to un-initialized devices */
@@ -1599,7 +1596,7 @@ lba_driver_probe(struct parisc_device *dev)
 		lba_dev->flags |= LBA_FLAG_SKIP_PROBE;
 	}
 
-	lba_next_bus = max + 1;
+	lba_next_bus = pci_bus_child_max_busnr(lba_bus) + 1;
 	pci_bus_add_devices(lba_bus);
 
 	/* Whew! Finally done! Tell services we got this one covered. */
-- 
1.7.1


From - Thu Nov 08 21:37:18 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.kernel.pci,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.ports.parisc
Subject: [PATCH v4 22/30] PCI/Parisc: Use pci_scan_root_bus() for simplicity
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Cc: Jiang Liu <jiang.liu@linux.intel.com>, <linux-pci@vger.kernel.org>,
	Yinghai Lu <yinghai@kernel.org>,
	<linux-kernel@vger.kernel.org>,
	Marc Zyngier <marc.zyngier@arm.com>,
	<linux-arm-kernel@lists.infradead.org>,
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	"Yijing Wang" <wangyijing@huawei.com>,
	Yijing Wang <wangyijing0307@gmail.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	<linux-parisc@vger.kernel.org>
To: Bjorn Helgaas <bhelgaas@google.com>
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From: Yijing Wang <wangyijing0307@gmail.com>

Now pci_bus_add_devices() has been ripped out
from pci_scan_root_bus(), we could use pci_scan_root_bus()
instead of pci_create_root_bus() + pci_scan_child_bus()
for simplicity. We could also remove the pci bus
resource(dino_current_bus,255) and pci_bus_update_busn_res_end(),
because pci_scan_root_bus() would do the same thing.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |   11 ++---------
 drivers/parisc/lba_pci.c |    7 ++-----
 2 files changed, 4 insertions(+), 14 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index a0580af..e5ee339 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -977,15 +977,11 @@ static int __init dino_probe(struct parisc_device *dev)
 	if (dino_dev->hba.gmmio_space.flags)
 		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
 
-	dino_dev->hba.bus_num.start = dino_current_bus;
-	dino_dev->hba.bus_num.end = 255;
-	dino_dev->hba.bus_num.flags = IORESOURCE_BUS;
-	pci_add_resource(&resources, &dino_dev->hba.bus_num);
 	/*
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev,
+	dino_dev->hba.hba_bus = bus = pci_scan_root_bus(&dev->dev,
 			 dino_current_bus, &dino_cfg_ops, NULL, &resources);
 	if (!bus) {
 		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
@@ -996,13 +992,10 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
-	max = pci_scan_child_bus(bus);
-	pci_bus_update_busn_res_end(bus, max);
-
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
 	 */
-	dino_current_bus = max + 1;
+	dino_current_bus = bus->busn_res.end + 1;
 	pci_bus_assign_resources(bus);
 	pci_bus_add_devices(bus);
 	return 0;
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index dceb9dd..ba6daec 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1422,7 +1422,6 @@ lba_driver_probe(struct parisc_device *dev)
 	void *tmp_obj;
 	char *version;
 	void __iomem *addr = ioremap_nocache(dev->hpa.start, 4096);
-	int max;
 
 	/* Read HW Rev First */
 	func_class = READ_REG32(addr + LBA_FCLASS);
@@ -1563,15 +1562,13 @@ lba_driver_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
-		pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
+		pci_scan_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
 				    cfg_ops, NULL, &resources);
 	if (!lba_bus) {
 		pci_free_resource_list(&resources);
 		return 0;
 	}
 
-	max = pci_scan_child_bus(lba_bus);
-
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
 		/* assign resources to un-initialized devices */
@@ -1599,7 +1596,7 @@ lba_driver_probe(struct parisc_device *dev)
 		lba_dev->flags |= LBA_FLAG_SKIP_PROBE;
 	}
 
-	lba_next_bus = max + 1;
+	lba_next_bus = pci_bus_child_max_busnr(lba_bus) + 1;
 	pci_bus_add_devices(lba_bus);
 
 	/* Whew! Finally done! Tell services we got this one covered. */
-- 
1.7.1


From - Thu Nov 08 21:37:19 2018
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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH] seccomp: switch to using asm-generic for seccomp.h
Date: Fri, 27 Feb 2015 16:52:29 -0800
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Cc: linux-kernel@vger.kernel.org,
        AKASHI Takahiro <takahiro.akashi@linaro.org>,
        Russell King <linux@arm.linux.org.uk>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        linux390@de.ibm.com, "David S. Miller" <davem@davemloft.net>,
        James Hogan <james.hogan@imgtec.com>, x86@kernel.org,
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        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-s390@vger.kernel.org, linux-sh@vger.kernel.o
To: akpm@linux-foundation.org
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Xref: news.gmane.org gmane.linux.ports.mips.general:47204 gmane.linux.kernel:1896679 gmane.linux.ports.arm.kernel:396143 gmane.linux.ports.parisc:25613 gmane.linux.ports.ppc64.devel:109565 gmane.linux.ports.sh.devel:44297 gmane.linux.ports.sparc:20477
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/47204>

Most architectures don't need to do anything special for the strict
seccomp syscall entries. Remove the redundant headers and reduce the
others.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 arch/arm/include/asm/seccomp.h          | 12 +-----------
 arch/microblaze/include/asm/seccomp.h   | 17 +----------------
 arch/mips/include/asm/seccomp.h         |  7 ++-----
 arch/parisc/include/asm/seccomp.h       | 17 +----------------
 arch/powerpc/include/asm/seccomp.h      |  1 +
 arch/powerpc/include/uapi/asm/Kbuild    |  1 -
 arch/powerpc/include/uapi/asm/seccomp.h | 16 ----------------
 arch/s390/include/asm/seccomp.h         | 17 +----------------
 arch/sh/include/asm/seccomp.h           | 11 +----------
 arch/sparc/include/asm/seccomp.h        | 16 +---------------
 arch/x86/include/asm/seccomp.h          | 21 ++++++++++++++++++---
 arch/x86/include/asm/seccomp_32.h       | 11 -----------
 arch/x86/include/asm/seccomp_64.h       | 17 -----------------
 13 files changed, 27 insertions(+), 137 deletions(-)
 create mode 100644 arch/powerpc/include/asm/seccomp.h
 delete mode 100644 arch/powerpc/include/uapi/asm/seccomp.h
 delete mode 100644 arch/x86/include/asm/seccomp_32.h
 delete mode 100644 arch/x86/include/asm/seccomp_64.h

diff --git a/arch/arm/include/asm/seccomp.h b/arch/arm/include/asm/seccomp.h
index 52b156b341f5..66ca6a30bf5c 100644
--- a/arch/arm/include/asm/seccomp.h
+++ b/arch/arm/include/asm/seccomp.h
@@ -1,11 +1 @@
-#ifndef _ASM_ARM_SECCOMP_H
-#define _ASM_ARM_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#endif /* _ASM_ARM_SECCOMP_H */
+#include <asm-generic/seccomp.h>
diff --git a/arch/microblaze/include/asm/seccomp.h b/arch/microblaze/include/asm/seccomp.h
index 0d912758a0d7..66ca6a30bf5c 100644
--- a/arch/microblaze/include/asm/seccomp.h
+++ b/arch/microblaze/include/asm/seccomp.h
@@ -1,16 +1 @@
-#ifndef _ASM_MICROBLAZE_SECCOMP_H
-#define _ASM_MICROBLAZE_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read		__NR_read
-#define __NR_seccomp_write		__NR_write
-#define __NR_seccomp_exit		__NR_exit
-#define __NR_seccomp_sigreturn		__NR_sigreturn
-
-#define __NR_seccomp_read_32		__NR_read
-#define __NR_seccomp_write_32		__NR_write
-#define __NR_seccomp_exit_32		__NR_exit
-#define __NR_seccomp_sigreturn_32	__NR_sigreturn
-
-#endif	/* _ASM_MICROBLAZE_SECCOMP_H */
+#include <asm-generic/seccomp.h>
diff --git a/arch/mips/include/asm/seccomp.h b/arch/mips/include/asm/seccomp.h
index f29c75cf83c6..1d8a2e2c75c1 100644
--- a/arch/mips/include/asm/seccomp.h
+++ b/arch/mips/include/asm/seccomp.h
@@ -2,11 +2,6 @@
 
 #include <linux/unistd.h>
 
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
 /*
  * Kludge alert:
  *
@@ -29,4 +24,6 @@
 
 #endif /* CONFIG_MIPS32_O32 */
 
+#include <asm-generic/seccomp.h>
+
 #endif /* __ASM_SECCOMP_H */
diff --git a/arch/parisc/include/asm/seccomp.h b/arch/parisc/include/asm/seccomp.h
index 015f7887aa29..66ca6a30bf5c 100644
--- a/arch/parisc/include/asm/seccomp.h
+++ b/arch/parisc/include/asm/seccomp.h
@@ -1,16 +1 @@
-#ifndef _ASM_PARISC_SECCOMP_H
-#define _ASM_PARISC_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#define __NR_seccomp_read_32 __NR_read
-#define __NR_seccomp_write_32 __NR_write
-#define __NR_seccomp_exit_32 __NR_exit
-#define __NR_seccomp_sigreturn_32 __NR_rt_sigreturn
-
-#endif	/* _ASM_PARISC_SECCOMP_H */
+#include <asm-generic/seccomp.h>
diff --git a/arch/powerpc/include/asm/seccomp.h b/arch/powerpc/include/asm/seccomp.h
new file mode 100644
index 000000000000..66ca6a30bf5c
--- /dev/null
+++ b/arch/powerpc/include/asm/seccomp.h
@@ -0,0 +1 @@
+#include <asm-generic/seccomp.h>
diff --git a/arch/powerpc/include/uapi/asm/Kbuild b/arch/powerpc/include/uapi/asm/Kbuild
index 7a3f795ac218..79c4068be278 100644
--- a/arch/powerpc/include/uapi/asm/Kbuild
+++ b/arch/powerpc/include/uapi/asm/Kbuild
@@ -25,7 +25,6 @@ header-y += posix_types.h
 header-y += ps3fb.h
 header-y += ptrace.h
 header-y += resource.h
-header-y += seccomp.h
 header-y += sembuf.h
 header-y += setup.h
 header-y += shmbuf.h
diff --git a/arch/powerpc/include/uapi/asm/seccomp.h b/arch/powerpc/include/uapi/asm/seccomp.h
deleted file mode 100644
index 00c1d9133cfe..000000000000
--- a/arch/powerpc/include/uapi/asm/seccomp.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef _ASM_POWERPC_SECCOMP_H
-#define _ASM_POWERPC_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#define __NR_seccomp_read_32 __NR_read
-#define __NR_seccomp_write_32 __NR_write
-#define __NR_seccomp_exit_32 __NR_exit
-#define __NR_seccomp_sigreturn_32 __NR_sigreturn
-
-#endif	/* _ASM_POWERPC_SECCOMP_H */
diff --git a/arch/s390/include/asm/seccomp.h b/arch/s390/include/asm/seccomp.h
index 781a9cf9b002..66ca6a30bf5c 100644
--- a/arch/s390/include/asm/seccomp.h
+++ b/arch/s390/include/asm/seccomp.h
@@ -1,16 +1 @@
-#ifndef _ASM_S390_SECCOMP_H
-#define _ASM_S390_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read	__NR_read
-#define __NR_seccomp_write	__NR_write
-#define __NR_seccomp_exit	__NR_exit
-#define __NR_seccomp_sigreturn	__NR_sigreturn
-
-#define __NR_seccomp_read_32	__NR_read
-#define __NR_seccomp_write_32	__NR_write
-#define __NR_seccomp_exit_32	__NR_exit
-#define __NR_seccomp_sigreturn_32 __NR_sigreturn
-
-#endif	/* _ASM_S390_SECCOMP_H */
+#include <asm-generic/seccomp.h>
diff --git a/arch/sh/include/asm/seccomp.h b/arch/sh/include/asm/seccomp.h
index 3280ed3802ef..66ca6a30bf5c 100644
--- a/arch/sh/include/asm/seccomp.h
+++ b/arch/sh/include/asm/seccomp.h
@@ -1,10 +1 @@
-#ifndef __ASM_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#endif /* __ASM_SECCOMP_H */
+#include <asm-generic/seccomp.h>
diff --git a/arch/sparc/include/asm/seccomp.h b/arch/sparc/include/asm/seccomp.h
index adca1bce41d4..66ca6a30bf5c 100644
--- a/arch/sparc/include/asm/seccomp.h
+++ b/arch/sparc/include/asm/seccomp.h
@@ -1,15 +1 @@
-#ifndef _ASM_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#define __NR_seccomp_read_32 __NR_read
-#define __NR_seccomp_write_32 __NR_write
-#define __NR_seccomp_exit_32 __NR_exit
-#define __NR_seccomp_sigreturn_32 __NR_sigreturn
-
-#endif /* _ASM_SECCOMP_H */
+#include <asm-generic/seccomp.h>
diff --git a/arch/x86/include/asm/seccomp.h b/arch/x86/include/asm/seccomp.h
index 0f3d7f099224..b13ac5f63702 100644
--- a/arch/x86/include/asm/seccomp.h
+++ b/arch/x86/include/asm/seccomp.h
@@ -1,5 +1,20 @@
+#ifndef _ASM_X86_SECCOMP_H
+#define _ASM_X86_SECCOMP_H
+
+#include <asm/unistd.h>
+
+#ifdef CONFIG_COMPAT
+#include <asm/ia32_unistd.h>
+#define __NR_seccomp_read_32		__NR_ia32_read
+#define __NR_seccomp_write_32		__NR_ia32_write
+#define __NR_seccomp_exit_32		__NR_ia32_exit
+#define __NR_seccomp_sigreturn_32	__NR_ia32_sigreturn
+#endif
+
 #ifdef CONFIG_X86_32
-# include <asm/seccomp_32.h>
-#else
-# include <asm/seccomp_64.h>
+#define __NR_seccomp_sigreturn		__NR_sigreturn
 #endif
+
+#include <asm-generic/seccomp.h>
+
+#endif /* _ASM_X86_SECCOMP_H */
diff --git a/arch/x86/include/asm/seccomp_32.h b/arch/x86/include/asm/seccomp_32.h
deleted file mode 100644
index b811d6f5780c..000000000000
--- a/arch/x86/include/asm/seccomp_32.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef _ASM_X86_SECCOMP_32_H
-#define _ASM_X86_SECCOMP_32_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_sigreturn
-
-#endif /* _ASM_X86_SECCOMP_32_H */
diff --git a/arch/x86/include/asm/seccomp_64.h b/arch/x86/include/asm/seccomp_64.h
deleted file mode 100644
index 84ec1bd161a5..000000000000
--- a/arch/x86/include/asm/seccomp_64.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef _ASM_X86_SECCOMP_64_H
-#define _ASM_X86_SECCOMP_64_H
-
-#include <linux/unistd.h>
-#include <asm/ia32_unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#define __NR_seccomp_read_32 __NR_ia32_read
-#define __NR_seccomp_write_32 __NR_ia32_write
-#define __NR_seccomp_exit_32 __NR_ia32_exit
-#define __NR_seccomp_sigreturn_32 __NR_ia32_sigreturn
-
-#endif /* _ASM_X86_SECCOMP_64_H */
-- 
1.9.1


-- 
Kees Cook
Chrome OS Security



From - Thu Nov 08 21:37:19 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] seccomp: switch to using asm-generic for seccomp.h
Date: Sat, 28 Feb 2015 12:36:56 +1100
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Cc: akpm@linux-foundation.org, linux-mips@linux-mips.org,
	linux-sh@vger.kernel.org,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Paul Mackerras <paulus@samba.org>, sparclinux@vger.kernel.org,
	linux-s390@vger.kernel.org, Russell King <linux@arm.linux.org.uk>,
	Helge Deller <deller@gmx.de>, x86@kernel.org,
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	linux390@de.ibm.com, linuxppc-dev@lists.ozlabs.org,
	"David S. Miller" <davem@davemloft.net>
To: Kees Cook <keescook@chromium.org>
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Hi Kees,

On Fri, 27 Feb 2015 16:52:29 -0800 Kees Cook <keescook@chromium.org> wrote:
>
> diff --git a/arch/arm/include/asm/seccomp.h b/arch/arm/include/asm/seccom=
p.h
> index 52b156b341f5..66ca6a30bf5c 100644
> --- a/arch/arm/include/asm/seccomp.h
> +++ b/arch/arm/include/asm/seccomp.h
> @@ -1,11 +1 @@
> -#ifndef _ASM_ARM_SECCOMP_H
> -#define _ASM_ARM_SECCOMP_H
> -
> -#include <linux/unistd.h>
> -
> -#define __NR_seccomp_read __NR_read
> -#define __NR_seccomp_write __NR_write
> -#define __NR_seccomp_exit __NR_exit
> -#define __NR_seccomp_sigreturn __NR_rt_sigreturn
> -
> -#endif /* _ASM_ARM_SECCOMP_H */
> +#include <asm-generic/seccomp.h>

I think that these cases (where you replace the file by a stub that
just include <asm-generic/seccomp.h>) can be replaced by removing the
file completely and adding

generic-y =3D seccomp.h

to <ARCH>/include/asm/Kbuild

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

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From - Thu Nov 08 21:37:19 2018
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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] seccomp: switch to using asm-generic for seccomp.h
Date: Fri, 27 Feb 2015 18:01:11 -0800
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To: Stephen Rothwell <sfr@canb.auug.org.au>
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On Fri, Feb 27, 2015 at 5:36 PM, Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> Hi Kees,
>
> On Fri, 27 Feb 2015 16:52:29 -0800 Kees Cook <keescook@chromium.org> wrote:
>>
>> diff --git a/arch/arm/include/asm/seccomp.h b/arch/arm/include/asm/seccomp.h
>> index 52b156b341f5..66ca6a30bf5c 100644
>> --- a/arch/arm/include/asm/seccomp.h
>> +++ b/arch/arm/include/asm/seccomp.h
>> @@ -1,11 +1 @@
>> -#ifndef _ASM_ARM_SECCOMP_H
>> -#define _ASM_ARM_SECCOMP_H
>> -
>> -#include <linux/unistd.h>
>> -
>> -#define __NR_seccomp_read __NR_read
>> -#define __NR_seccomp_write __NR_write
>> -#define __NR_seccomp_exit __NR_exit
>> -#define __NR_seccomp_sigreturn __NR_rt_sigreturn
>> -
>> -#endif /* _ASM_ARM_SECCOMP_H */
>> +#include <asm-generic/seccomp.h>
>
> I think that these cases (where you replace the file by a stub that
> just include <asm-generic/seccomp.h>) can be replaced by removing the
> file completely and adding
>
> generic-y = seccomp.h
>
> to <ARCH>/include/asm/Kbuild

Ah-ha! I thought total removal was possible, but I lacked the Kbuild
piece. There are a lot of arch/ headers that are just the one line.
Maybe I should send a another patch to clean up those?

-Kees

-- 
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Chrome OS Security
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From - Thu Nov 08 21:37:19 2018
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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: [PATCH v2] seccomp: switch to using asm-generic for seccomp.h
Date: Mon, 2 Mar 2015 15:12:54 -0800
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Cc: AKASHI Takahiro <takahiro.akashi@linaro.org>,
        Russell King <linux@arm.linux.org.uk>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
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        Laura Abbott <lauraa@codeaurora.org>,
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        Daniel Borkmann <dborkman@redhat.com>,
To: Andrew Morton <akpm@linux-foundation.org>
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Most architectures don't need to do anything special for the strict
seccomp syscall entries. Remove the redundant headers and reduce the
others.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
v2:
- use Kbuild "generic-y" instead of explicit #include lines (sfr)
---
 arch/arm/include/asm/Kbuild             |  1 +
 arch/arm/include/asm/seccomp.h          | 11 -----------
 arch/microblaze/include/asm/Kbuild      |  1 +
 arch/microblaze/include/asm/seccomp.h   | 16 ----------------
 arch/mips/include/asm/seccomp.h         |  7 ++-----
 arch/parisc/include/asm/Kbuild          |  1 +
 arch/parisc/include/asm/seccomp.h       | 16 ----------------
 arch/powerpc/include/asm/Kbuild         |  1 +
 arch/powerpc/include/uapi/asm/Kbuild    |  1 -
 arch/powerpc/include/uapi/asm/seccomp.h | 16 ----------------
 arch/s390/include/asm/Kbuild            |  1 +
 arch/s390/include/asm/seccomp.h         | 16 ----------------
 arch/sh/include/asm/Kbuild              |  1 +
 arch/sh/include/asm/seccomp.h           | 10 ----------
 arch/sparc/include/asm/Kbuild           |  1 +
 arch/sparc/include/asm/seccomp.h        | 15 ---------------
 arch/x86/include/asm/seccomp.h          | 21 ++++++++++++++++++---
 arch/x86/include/asm/seccomp_32.h       | 11 -----------
 arch/x86/include/asm/seccomp_64.h       | 17 -----------------
 19 files changed, 27 insertions(+), 137 deletions(-)
 delete mode 100644 arch/arm/include/asm/seccomp.h
 delete mode 100644 arch/microblaze/include/asm/seccomp.h
 delete mode 100644 arch/parisc/include/asm/seccomp.h
 delete mode 100644 arch/powerpc/include/uapi/asm/seccomp.h
 delete mode 100644 arch/s390/include/asm/seccomp.h
 delete mode 100644 arch/sh/include/asm/seccomp.h
 delete mode 100644 arch/sparc/include/asm/seccomp.h
 delete mode 100644 arch/x86/include/asm/seccomp_32.h
 delete mode 100644 arch/x86/include/asm/seccomp_64.h

diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index fe74c0d1e485..d7be5a9fd171 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -22,6 +22,7 @@ generic-y += preempt.h
 generic-y += resource.h
 generic-y += rwsem.h
 generic-y += scatterlist.h
+generic-y += seccomp.h
 generic-y += sections.h
 generic-y += segment.h
 generic-y += sembuf.h
diff --git a/arch/arm/include/asm/seccomp.h b/arch/arm/include/asm/seccomp.h
deleted file mode 100644
index 52b156b341f5..000000000000
--- a/arch/arm/include/asm/seccomp.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef _ASM_ARM_SECCOMP_H
-#define _ASM_ARM_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#endif /* _ASM_ARM_SECCOMP_H */
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
index ab564a6db5c3..877e2f610655 100644
--- a/arch/microblaze/include/asm/Kbuild
+++ b/arch/microblaze/include/asm/Kbuild
@@ -8,5 +8,6 @@ generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += preempt.h
 generic-y += scatterlist.h
+generic-y += seccomp.h
 generic-y += syscalls.h
 generic-y += trace_clock.h
diff --git a/arch/microblaze/include/asm/seccomp.h b/arch/microblaze/include/asm/seccomp.h
deleted file mode 100644
index 0d912758a0d7..000000000000
--- a/arch/microblaze/include/asm/seccomp.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef _ASM_MICROBLAZE_SECCOMP_H
-#define _ASM_MICROBLAZE_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read		__NR_read
-#define __NR_seccomp_write		__NR_write
-#define __NR_seccomp_exit		__NR_exit
-#define __NR_seccomp_sigreturn		__NR_sigreturn
-
-#define __NR_seccomp_read_32		__NR_read
-#define __NR_seccomp_write_32		__NR_write
-#define __NR_seccomp_exit_32		__NR_exit
-#define __NR_seccomp_sigreturn_32	__NR_sigreturn
-
-#endif	/* _ASM_MICROBLAZE_SECCOMP_H */
diff --git a/arch/mips/include/asm/seccomp.h b/arch/mips/include/asm/seccomp.h
index f29c75cf83c6..1d8a2e2c75c1 100644
--- a/arch/mips/include/asm/seccomp.h
+++ b/arch/mips/include/asm/seccomp.h
@@ -2,11 +2,6 @@
 
 #include <linux/unistd.h>
 
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
 /*
  * Kludge alert:
  *
@@ -29,4 +24,6 @@
 
 #endif /* CONFIG_MIPS32_O32 */
 
+#include <asm-generic/seccomp.h>
+
 #endif /* __ASM_SECCOMP_H */
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 8686237a3c3c..12b341d04f88 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -20,6 +20,7 @@ generic-y += param.h
 generic-y += percpu.h
 generic-y += poll.h
 generic-y += preempt.h
+generic-y += seccomp.h
 generic-y += segment.h
 generic-y += topology.h
 generic-y += trace_clock.h
diff --git a/arch/parisc/include/asm/seccomp.h b/arch/parisc/include/asm/seccomp.h
deleted file mode 100644
index 015f7887aa29..000000000000
--- a/arch/parisc/include/asm/seccomp.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef _ASM_PARISC_SECCOMP_H
-#define _ASM_PARISC_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#define __NR_seccomp_read_32 __NR_read
-#define __NR_seccomp_write_32 __NR_write
-#define __NR_seccomp_exit_32 __NR_exit
-#define __NR_seccomp_sigreturn_32 __NR_rt_sigreturn
-
-#endif	/* _ASM_PARISC_SECCOMP_H */
diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild
index 382b28e364dc..c3a772f19dfd 100644
--- a/arch/powerpc/include/asm/Kbuild
+++ b/arch/powerpc/include/asm/Kbuild
@@ -5,5 +5,6 @@ generic-y += mcs_spinlock.h
 generic-y += preempt.h
 generic-y += rwsem.h
 generic-y += scatterlist.h
+generic-y += seccomp.h
 generic-y += trace_clock.h
 generic-y += vtime.h
diff --git a/arch/powerpc/include/uapi/asm/Kbuild b/arch/powerpc/include/uapi/asm/Kbuild
index 7a3f795ac218..79c4068be278 100644
--- a/arch/powerpc/include/uapi/asm/Kbuild
+++ b/arch/powerpc/include/uapi/asm/Kbuild
@@ -25,7 +25,6 @@ header-y += posix_types.h
 header-y += ps3fb.h
 header-y += ptrace.h
 header-y += resource.h
-header-y += seccomp.h
 header-y += sembuf.h
 header-y += setup.h
 header-y += shmbuf.h
diff --git a/arch/powerpc/include/uapi/asm/seccomp.h b/arch/powerpc/include/uapi/asm/seccomp.h
deleted file mode 100644
index 00c1d9133cfe..000000000000
--- a/arch/powerpc/include/uapi/asm/seccomp.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef _ASM_POWERPC_SECCOMP_H
-#define _ASM_POWERPC_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#define __NR_seccomp_read_32 __NR_read
-#define __NR_seccomp_write_32 __NR_write
-#define __NR_seccomp_exit_32 __NR_exit
-#define __NR_seccomp_sigreturn_32 __NR_sigreturn
-
-#endif	/* _ASM_POWERPC_SECCOMP_H */
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index c631f98fd524..369fbfcd85fc 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -5,4 +5,5 @@ generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += preempt.h
 generic-y += scatterlist.h
+generic-y += seccomp.h
 generic-y += trace_clock.h
diff --git a/arch/s390/include/asm/seccomp.h b/arch/s390/include/asm/seccomp.h
deleted file mode 100644
index 781a9cf9b002..000000000000
--- a/arch/s390/include/asm/seccomp.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef _ASM_S390_SECCOMP_H
-#define _ASM_S390_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read	__NR_read
-#define __NR_seccomp_write	__NR_write
-#define __NR_seccomp_exit	__NR_exit
-#define __NR_seccomp_sigreturn	__NR_sigreturn
-
-#define __NR_seccomp_read_32	__NR_read
-#define __NR_seccomp_write_32	__NR_write
-#define __NR_seccomp_exit_32	__NR_exit
-#define __NR_seccomp_sigreturn_32 __NR_sigreturn
-
-#endif	/* _ASM_S390_SECCOMP_H */
diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index 654ebb6bd5d8..457aaa82c30d 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -25,6 +25,7 @@ generic-y += poll.h
 generic-y += preempt.h
 generic-y += resource.h
 generic-y += scatterlist.h
+generic-y += seccomp.h
 generic-y += sembuf.h
 generic-y += serial.h
 generic-y += shmbuf.h
diff --git a/arch/sh/include/asm/seccomp.h b/arch/sh/include/asm/seccomp.h
deleted file mode 100644
index 3280ed3802ef..000000000000
--- a/arch/sh/include/asm/seccomp.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef __ASM_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#endif /* __ASM_SECCOMP_H */
diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
index 94f36e7086a7..41646380db97 100644
--- a/arch/sparc/include/asm/Kbuild
+++ b/arch/sparc/include/asm/Kbuild
@@ -16,6 +16,7 @@ generic-y += module.h
 generic-y += mutex.h
 generic-y += preempt.h
 generic-y += scatterlist.h
+generic-y += seccomp.h
 generic-y += serial.h
 generic-y += trace_clock.h
 generic-y += types.h
diff --git a/arch/sparc/include/asm/seccomp.h b/arch/sparc/include/asm/seccomp.h
deleted file mode 100644
index adca1bce41d4..000000000000
--- a/arch/sparc/include/asm/seccomp.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef _ASM_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#define __NR_seccomp_read_32 __NR_read
-#define __NR_seccomp_write_32 __NR_write
-#define __NR_seccomp_exit_32 __NR_exit
-#define __NR_seccomp_sigreturn_32 __NR_sigreturn
-
-#endif /* _ASM_SECCOMP_H */
diff --git a/arch/x86/include/asm/seccomp.h b/arch/x86/include/asm/seccomp.h
index 0f3d7f099224..b13ac5f63702 100644
--- a/arch/x86/include/asm/seccomp.h
+++ b/arch/x86/include/asm/seccomp.h
@@ -1,5 +1,20 @@
+#ifndef _ASM_X86_SECCOMP_H
+#define _ASM_X86_SECCOMP_H
+
+#include <asm/unistd.h>
+
+#ifdef CONFIG_COMPAT
+#include <asm/ia32_unistd.h>
+#define __NR_seccomp_read_32		__NR_ia32_read
+#define __NR_seccomp_write_32		__NR_ia32_write
+#define __NR_seccomp_exit_32		__NR_ia32_exit
+#define __NR_seccomp_sigreturn_32	__NR_ia32_sigreturn
+#endif
+
 #ifdef CONFIG_X86_32
-# include <asm/seccomp_32.h>
-#else
-# include <asm/seccomp_64.h>
+#define __NR_seccomp_sigreturn		__NR_sigreturn
 #endif
+
+#include <asm-generic/seccomp.h>
+
+#endif /* _ASM_X86_SECCOMP_H */
diff --git a/arch/x86/include/asm/seccomp_32.h b/arch/x86/include/asm/seccomp_32.h
deleted file mode 100644
index b811d6f5780c..000000000000
--- a/arch/x86/include/asm/seccomp_32.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef _ASM_X86_SECCOMP_32_H
-#define _ASM_X86_SECCOMP_32_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_sigreturn
-
-#endif /* _ASM_X86_SECCOMP_32_H */
diff --git a/arch/x86/include/asm/seccomp_64.h b/arch/x86/include/asm/seccomp_64.h
deleted file mode 100644
index 84ec1bd161a5..000000000000
--- a/arch/x86/include/asm/seccomp_64.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef _ASM_X86_SECCOMP_64_H
-#define _ASM_X86_SECCOMP_64_H
-
-#include <linux/unistd.h>
-#include <asm/ia32_unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#define __NR_seccomp_read_32 __NR_ia32_read
-#define __NR_seccomp_write_32 __NR_ia32_write
-#define __NR_seccomp_exit_32 __NR_ia32_exit
-#define __NR_seccomp_sigreturn_32 __NR_ia32_sigreturn
-
-#endif /* _ASM_X86_SECCOMP_64_H */
-- 
1.9.1


-- 
Kees Cook
Chrome OS Security



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Subject: Re: [PATCH v4 22/30] PCI/Parisc: Use pci_scan_root_bus() for
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	Yinghai Lu <yinghai@kernel.org>, linux-kernel@vger.kernel.org,
	Marc Zyngier <marc.zyngier@arm.com>,
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	Yijing Wang <wangyijing0307@gmail.com>,
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	linux-parisc@vger.kernel.org
To: Yijing Wang <wangyijing@huawei.com>
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On Thu, Feb 26, 2015 at 04:12:16PM +0800, Yijing Wang wrote:
> From: Yijing Wang <wangyijing0307@gmail.com>

When you write subject lines, I think it's friendly to run
"git log --oneline" on the file you're changing, and make yours
match the previous ones.

  $ git log --oneline drivers/parisc/dino.c
  3f05536d226d PCI/Parisc: Use pci_scan_root_bus() for simplicity
  3335f75a8877 parisc: dino: fix %d confusingly prefixed with 0x in format string
  3fad9b8d597f drivers/parisc: Use printf extension %pR for struct resource
  0fe763c570ad Drivers: misc: remove __dev* attributes.
  0b79ca2a800d parisc/PCI: Use list_for_each_entry() for bus->devices traversal
  30aa80da43a5 parisc/PCI: register busn_res for root buses
  ...

Yours doesn't match any of them, but "parisc/PCI" seems the best match.

> Now pci_bus_add_devices() has been ripped out
> from pci_scan_root_bus(), we could use pci_scan_root_bus()
> instead of pci_create_root_bus() + pci_scan_child_bus()
> for simplicity. We could also remove the pci bus
> resource(dino_current_bus,255) and pci_bus_update_busn_res_end(),
> because pci_scan_root_bus() would do the same thing.
> 
> Signed-off-by: Yijing Wang <wangyijing@huawei.com>
> CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
> CC: linux-parisc@vger.kernel.org
> ---
>  drivers/parisc/dino.c    |   11 ++---------
>  drivers/parisc/lba_pci.c |    7 ++-----
>  2 files changed, 4 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
> index a0580af..e5ee339 100644
> --- a/drivers/parisc/dino.c
> +++ b/drivers/parisc/dino.c
> @@ -977,15 +977,11 @@ static int __init dino_probe(struct parisc_device *dev)
>  	if (dino_dev->hba.gmmio_space.flags)
>  		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
>  
> -	dino_dev->hba.bus_num.start = dino_current_bus;
> -	dino_dev->hba.bus_num.end = 255;
> -	dino_dev->hba.bus_num.flags = IORESOURCE_BUS;
> -	pci_add_resource(&resources, &dino_dev->hba.bus_num);

I know pci_scan_root_bus() does default to bus 0-255, but I don't really
like that behavior, and I think it's a bug for drivers like this to rely on
that.  The PCI core has no way to discover the actual bus number range, and
the only reason it supplies a default is because it was inconvenient to
change all the callers.  The host bridge driver is the only code that has
any chance of discovering and/or configuring the correct range.

So I think it's more correct to leave the existing code here, even though
this code is is likely incorrect.  At least then if we trip over an issue
with the bus range being incorrect, it will be clear that the fix should
be in dino.c rather than the PCI core.
--
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH v2] seccomp: switch to using asm-generic for seccomp.h
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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	Russell King <linux@arm.linux.org.uk>,
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To: Kees Cook <keescook@chromium.org>
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* Kees Cook <keescook@chromium.org> wrote:

> Most architectures don't need to do anything special for the strict
> seccomp syscall entries. Remove the redundant headers and reduce the
> others.

>  19 files changed, 27 insertions(+), 137 deletions(-)

Lovely cleanup factor.

Just to make sure, are you sure the 32-bit details are identical 
across architectures?

For example some architectures did this:

> --- a/arch/microblaze/include/asm/seccomp.h
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -#ifndef _ASM_MICROBLAZE_SECCOMP_H
> -#define _ASM_MICROBLAZE_SECCOMP_H
> -
> -#include <linux/unistd.h>
> -
> -#define __NR_seccomp_read		__NR_read
> -#define __NR_seccomp_write		__NR_write
> -#define __NR_seccomp_exit		__NR_exit
> -#define __NR_seccomp_sigreturn		__NR_sigreturn
> -
> -#define __NR_seccomp_read_32		__NR_read
> -#define __NR_seccomp_write_32		__NR_write
> -#define __NR_seccomp_exit_32		__NR_exit
> -#define __NR_seccomp_sigreturn_32	__NR_sigreturn

others did this:

> diff --git a/arch/x86/include/asm/seccomp_64.h b/arch/x86/include/asm/seccomp_64.h
> deleted file mode 100644
> index 84ec1bd161a5..000000000000
> --- a/arch/x86/include/asm/seccomp_64.h
> +++ /dev/null
> @@ -1,17 +0,0 @@
> -#ifndef _ASM_X86_SECCOMP_64_H
> -#define _ASM_X86_SECCOMP_64_H
> -
> -#include <linux/unistd.h>
> -#include <asm/ia32_unistd.h>
> -
> -#define __NR_seccomp_read __NR_read
> -#define __NR_seccomp_write __NR_write
> -#define __NR_seccomp_exit __NR_exit
> -#define __NR_seccomp_sigreturn __NR_rt_sigreturn
> -
> -#define __NR_seccomp_read_32 __NR_ia32_read
> -#define __NR_seccomp_write_32 __NR_ia32_write
> -#define __NR_seccomp_exit_32 __NR_ia32_exit
> -#define __NR_seccomp_sigreturn_32 __NR_ia32_sigreturn
> -
> -#endif /* _ASM_X86_SECCOMP_64_H */

While in yet another case you kept the syscall mappings:

> --- a/arch/x86/include/asm/seccomp.h
> +++ b/arch/x86/include/asm/seccomp.h
> @@ -1,5 +1,20 @@
> +#ifndef _ASM_X86_SECCOMP_H
> +#define _ASM_X86_SECCOMP_H
> +
> +#include <asm/unistd.h>
> +
> +#ifdef CONFIG_COMPAT
> +#include <asm/ia32_unistd.h>
> +#define __NR_seccomp_read_32		__NR_ia32_read
> +#define __NR_seccomp_write_32		__NR_ia32_write
> +#define __NR_seccomp_exit_32		__NR_ia32_exit
> +#define __NR_seccomp_sigreturn_32	__NR_ia32_sigreturn
> +#endif
> +
>  #ifdef CONFIG_X86_32
> -# include <asm/seccomp_32.h>
> -#else
> -# include <asm/seccomp_64.h>
> +#define __NR_seccomp_sigreturn		__NR_sigreturn
>  #endif
> +
> +#include <asm-generic/seccomp.h>
> +
> +#endif /* _ASM_X86_SECCOMP_H */

It might all be correct, but it's not obvious to me.

Thanks,

	Ingo

From - Thu Nov 08 21:37:19 2018
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From: Yijing Wang <wangyijing@huawei.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.alpha
Subject: Re: [PATCH v4 22/30] PCI/Parisc: Use pci_scan_root_bus() for simplicity
Date: Tue, 3 Mar 2015 17:31:44 +0800
Lines: 78
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References: <1424938344-4017-1-git-send-email-wangyijing@huawei.com> <1424938344-4017-23-git-send-email-wangyijing@huawei.com> <20150303032412.GK11978@google.com>
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Cc: Jiang Liu <jiang.liu@linux.intel.com>, <linux-pci@vger.kernel.org>,
	Yinghai Lu <yinghai@kernel.org>,
	<linux-kernel@vger.kernel.org>,
	Marc Zyngier <marc.zyngier@arm.com>,
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	"Yijing Wang" <wangyijing0307@gmail.com>,
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	<linux-parisc@vger.kernel.org>
To: Bjorn Helgaas <bhelgaas@google.com>
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On 2015/3/3 11:24, Bjorn Helgaas wrote:
> On Thu, Feb 26, 2015 at 04:12:16PM +0800, Yijing Wang wrote:
>> From: Yijing Wang <wangyijing0307@gmail.com>
> 
> When you write subject lines, I think it's friendly to run
> "git log --oneline" on the file you're changing, and make yours
> match the previous ones.
> 
>   $ git log --oneline drivers/parisc/dino.c
>   3f05536d226d PCI/Parisc: Use pci_scan_root_bus() for simplicity
>   3335f75a8877 parisc: dino: fix %d confusingly prefixed with 0x in format string
>   3fad9b8d597f drivers/parisc: Use printf extension %pR for struct resource
>   0fe763c570ad Drivers: misc: remove __dev* attributes.
>   0b79ca2a800d parisc/PCI: Use list_for_each_entry() for bus->devices traversal
>   30aa80da43a5 parisc/PCI: register busn_res for root buses
>   ...
> 
> Yours doesn't match any of them, but "parisc/PCI" seems the best match.

OK, I will refresh the title, sorry.

> 
>> Now pci_bus_add_devices() has been ripped out
>> from pci_scan_root_bus(), we could use pci_scan_root_bus()
>> instead of pci_create_root_bus() + pci_scan_child_bus()
>> for simplicity. We could also remove the pci bus
>> resource(dino_current_bus,255) and pci_bus_update_busn_res_end(),
>> because pci_scan_root_bus() would do the same thing.
>>
>> Signed-off-by: Yijing Wang <wangyijing@huawei.com>
>> CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
>> CC: linux-parisc@vger.kernel.org
>> ---
>>  drivers/parisc/dino.c    |   11 ++---------
>>  drivers/parisc/lba_pci.c |    7 ++-----
>>  2 files changed, 4 insertions(+), 14 deletions(-)
>>
>> diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
>> index a0580af..e5ee339 100644
>> --- a/drivers/parisc/dino.c
>> +++ b/drivers/parisc/dino.c
>> @@ -977,15 +977,11 @@ static int __init dino_probe(struct parisc_device *dev)
>>  	if (dino_dev->hba.gmmio_space.flags)
>>  		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
>>  
>> -	dino_dev->hba.bus_num.start = dino_current_bus;
>> -	dino_dev->hba.bus_num.end = 255;
>> -	dino_dev->hba.bus_num.flags = IORESOURCE_BUS;
>> -	pci_add_resource(&resources, &dino_dev->hba.bus_num);
> 
> I know pci_scan_root_bus() does default to bus 0-255, but I don't really
> like that behavior, and I think it's a bug for drivers like this to rely on
> that.  The PCI core has no way to discover the actual bus number range, and
> the only reason it supplies a default is because it was inconvenient to
> change all the callers.  The host bridge driver is the only code that has
> any chance of discovering and/or configuring the correct range.
> 
> So I think it's more correct to leave the existing code here, even though
> this code is is likely incorrect.  At least then if we trip over an issue
> with the bus range being incorrect, it will be clear that the fix should
> be in dino.c rather than the PCI core.

OK, I would keep this code here, thanks!

> 
> .
> 


-- 
Thanks!
Yijing

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From - Thu Nov 08 21:37:19 2018
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To: Ingo Molnar <mingo@kernel.org>
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On Tue, Mar 3, 2015 at 12:30 AM, Ingo Molnar <mingo@kernel.org> wrote:
>
> * Kees Cook <keescook@chromium.org> wrote:
>
>> Most architectures don't need to do anything special for the strict
>> seccomp syscall entries. Remove the redundant headers and reduce the
>> others.
>
>>  19 files changed, 27 insertions(+), 137 deletions(-)
>
> Lovely cleanup factor.
>
> Just to make sure, are you sure the 32-bit details are identical
> across architectures?

I did "gcc -E -dM" style output comparisons on the architectures I had
compilers for, and the buildbot hasn't complained on any of the others
(though see the bottom of this email).

>
> For example some architectures did this:
>
>> --- a/arch/microblaze/include/asm/seccomp.h
>> +++ /dev/null
>> @@ -1,16 +0,0 @@
>> -#ifndef _ASM_MICROBLAZE_SECCOMP_H
>> -#define _ASM_MICROBLAZE_SECCOMP_H
>> -
>> -#include <linux/unistd.h>
>> -
>> -#define __NR_seccomp_read            __NR_read
>> -#define __NR_seccomp_write           __NR_write
>> -#define __NR_seccomp_exit            __NR_exit
>> -#define __NR_seccomp_sigreturn               __NR_sigreturn
>> -
>> -#define __NR_seccomp_read_32         __NR_read
>> -#define __NR_seccomp_write_32                __NR_write
>> -#define __NR_seccomp_exit_32         __NR_exit
>> -#define __NR_seccomp_sigreturn_32    __NR_sigreturn

The asm-generic uses the same syscall numbers from both 64 and 32,
which matches most architectures, and those are the ones that had
their seccomp.h entirely eliminated.

> others did this:
>
>> diff --git a/arch/x86/include/asm/seccomp_64.h b/arch/x86/include/asm/seccomp_64.h
>> deleted file mode 100644
>> index 84ec1bd161a5..000000000000
>> --- a/arch/x86/include/asm/seccomp_64.h
>> +++ /dev/null
>> @@ -1,17 +0,0 @@
>> -#ifndef _ASM_X86_SECCOMP_64_H
>> -#define _ASM_X86_SECCOMP_64_H
>> -
>> -#include <linux/unistd.h>
>> -#include <asm/ia32_unistd.h>
>> -
>> -#define __NR_seccomp_read __NR_read
>> -#define __NR_seccomp_write __NR_write
>> -#define __NR_seccomp_exit __NR_exit
>> -#define __NR_seccomp_sigreturn __NR_rt_sigreturn
>> -
>> -#define __NR_seccomp_read_32 __NR_ia32_read
>> -#define __NR_seccomp_write_32 __NR_ia32_write
>> -#define __NR_seccomp_exit_32 __NR_ia32_exit
>> -#define __NR_seccomp_sigreturn_32 __NR_ia32_sigreturn
>> -
>> -#endif /* _ASM_X86_SECCOMP_64_H */

Well, this was x86's split config that was consolidated into the file below:

>
> While in yet another case you kept the syscall mappings:
>
>> --- a/arch/x86/include/asm/seccomp.h
>> +++ b/arch/x86/include/asm/seccomp.h
>> @@ -1,5 +1,20 @@
>> +#ifndef _ASM_X86_SECCOMP_H
>> +#define _ASM_X86_SECCOMP_H
>> +
>> +#include <asm/unistd.h>
>> +
>> +#ifdef CONFIG_COMPAT
>> +#include <asm/ia32_unistd.h>
>> +#define __NR_seccomp_read_32         __NR_ia32_read
>> +#define __NR_seccomp_write_32                __NR_ia32_write
>> +#define __NR_seccomp_exit_32         __NR_ia32_exit
>> +#define __NR_seccomp_sigreturn_32    __NR_ia32_sigreturn
>> +#endif
>> +
>>  #ifdef CONFIG_X86_32
>> -# include <asm/seccomp_32.h>
>> -#else
>> -# include <asm/seccomp_64.h>
>> +#define __NR_seccomp_sigreturn               __NR_sigreturn
>>  #endif
>> +
>> +#include <asm-generic/seccomp.h>
>> +
>> +#endif /* _ASM_X86_SECCOMP_H */
>
> It might all be correct, but it's not obvious to me.

The x86 change was the most complex as it removed a seccomp_32. and
seccomp_64.h file and merged into a single asm/seccomp.h to provide
overrides for the _32 #defines.

However, in looking at it now... I see some flip/flopping of
__NR_sigreturn and __NR_rt_sigreturn between some of the
architectures. Let me study that and send a v3. I think there are some
accidental changes on microblaze and powerpc.

-Kees

-- 
Kees Cook
Chrome OS Security
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH v3 2/8] arm: use asm-generic for seccomp.h
Date: Wed,  4 Mar 2015 17:27:02 -0800
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        Russell King <linux@arm.linux.org.uk>,
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Switch to using the newly created asm-generic/seccomp.h for the seccomp
strict mode syscall definitions. Definitions were identical.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 arch/arm/include/asm/Kbuild    |  1 +
 arch/arm/include/asm/seccomp.h | 11 -----------
 2 files changed, 1 insertion(+), 11 deletions(-)
 delete mode 100644 arch/arm/include/asm/seccomp.h

diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index fe74c0d1e485..d7be5a9fd171 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -22,6 +22,7 @@ generic-y += preempt.h
 generic-y += resource.h
 generic-y += rwsem.h
 generic-y += scatterlist.h
+generic-y += seccomp.h
 generic-y += sections.h
 generic-y += segment.h
 generic-y += sembuf.h
diff --git a/arch/arm/include/asm/seccomp.h b/arch/arm/include/asm/seccomp.h
deleted file mode 100644
index 52b156b341f5..000000000000
--- a/arch/arm/include/asm/seccomp.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef _ASM_ARM_SECCOMP_H
-#define _ASM_ARM_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#endif /* _ASM_ARM_SECCOMP_H */
-- 
1.9.1




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X-Mozilla-Keys:                                                                                 
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Some architectures may need to override the compat sigreturn definition,
as is already possible in the non-compat case.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 include/asm-generic/seccomp.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/asm-generic/seccomp.h b/include/asm-generic/seccomp.h
index 9fa1f653ed3b..c9ccafa0d99a 100644
--- a/include/asm-generic/seccomp.h
+++ b/include/asm-generic/seccomp.h
@@ -17,7 +17,9 @@
 #define __NR_seccomp_read_32		__NR_read
 #define __NR_seccomp_write_32		__NR_write
 #define __NR_seccomp_exit_32		__NR_exit
+#ifndef __NR_seccomp_sigreturn_32
 #define __NR_seccomp_sigreturn_32	__NR_rt_sigreturn
+#endif
 #endif /* CONFIG_COMPAT && ! already defined */
 
 #define __NR_seccomp_read		__NR_read
-- 
1.9.1


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Subject: [PATCH v3 4/8] mips: switch to using asm-generic for seccomp.h
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Switch to using the newly created asm-generic/seccomp.h for the seccomp
strict mode syscall definitions. COMPAT definitions retain their overrides
and the remaining definitions were identical.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 arch/mips/include/asm/seccomp.h | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/mips/include/asm/seccomp.h b/arch/mips/include/asm/seccomp.h
index f29c75cf83c6..1d8a2e2c75c1 100644
--- a/arch/mips/include/asm/seccomp.h
+++ b/arch/mips/include/asm/seccomp.h
@@ -2,11 +2,6 @@
 
 #include <linux/unistd.h>
 
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
 /*
  * Kludge alert:
  *
@@ -29,4 +24,6 @@
 
 #endif /* CONFIG_MIPS32_O32 */
 
+#include <asm-generic/seccomp.h>
+
 #endif /* __ASM_SECCOMP_H */
-- 
1.9.1


From - Thu Nov 08 21:37:19 2018
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X-Mozilla-Keys:                                                                                 
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From: Kees Cook <keescook@chromium.org>
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Subject: [PATCH v3 7/8] sparc: switch to using asm-generic for seccomp.h
Date: Wed,  4 Mar 2015 17:27:07 -0800
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Cc: Kees Cook <keescook@chromium.org>, Ingo Molnar <mingo@redhat.com>,
        Russell King <linux@arm.linux.org.uk>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
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To: akpm@linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/47335>

Switch to using the newly created asm-generic/seccomp.h for the seccomp
strict mode syscall definitions. The obsolete sigreturn in COMPAT mode
is retained as an override. Remaining definitions are identical. Also
corrected missing #define for header reinclusion protection.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 arch/sparc/include/asm/seccomp.h | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/arch/sparc/include/asm/seccomp.h b/arch/sparc/include/asm/seccomp.h
index adca1bce41d4..5ef8826d44f8 100644
--- a/arch/sparc/include/asm/seccomp.h
+++ b/arch/sparc/include/asm/seccomp.h
@@ -1,15 +1,10 @@
 #ifndef _ASM_SECCOMP_H
+#define _ASM_SECCOMP_H
 
 #include <linux/unistd.h>
 
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#define __NR_seccomp_read_32 __NR_read
-#define __NR_seccomp_write_32 __NR_write
-#define __NR_seccomp_exit_32 __NR_exit
 #define __NR_seccomp_sigreturn_32 __NR_sigreturn
 
+#include <asm-generic/seccomp.h>
+
 #endif /* _ASM_SECCOMP_H */
-- 
1.9.1




From - Thu Nov 08 21:37:19 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 6/8] powerpc: switch to using asm-generic for seccomp.h
Date: Wed,  4 Mar 2015 17:27:06 -0800
Lines: 62
Approved: news@gmane.org
Message-ID: <1425518828-16017-7-git-send-email-keescook@chromium.org>
References: <1425518828-16017-1-git-send-email-keescook@chromium.org>
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Cc: Kees Cook <keescook@chromium.org>, Ingo Molnar <mingo@redhat.com>,
	Russell King <linux@arm.linux.org.uk>,
	Michal Simek <monstr@monstr.eu>,
	Ralf Baechle <ralf@linux-mips.org>,
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	Helge Deller <deller@gmx.de>,
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	Arnd Bergmann <arnd@arndb.de>,
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To: akpm@linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/25625>

Switch to using the newly created asm-generic/seccomp.h for the seccomp
strict mode syscall definitions. The obsolete sigreturn in COMPAT mode
is retained as an override. Remaining definitions are identical, though
they incorrectly appeared in uapi, which has been corrected.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 arch/powerpc/include/asm/seccomp.h      | 10 ++++++++++
 arch/powerpc/include/uapi/asm/Kbuild    |  1 -
 arch/powerpc/include/uapi/asm/seccomp.h | 16 ----------------
 3 files changed, 10 insertions(+), 17 deletions(-)
 create mode 100644 arch/powerpc/include/asm/seccomp.h
 delete mode 100644 arch/powerpc/include/uapi/asm/seccomp.h

diff --git a/arch/powerpc/include/asm/seccomp.h b/arch/powerpc/include/asm/seccomp.h
new file mode 100644
index 000000000000..c1818e35cf02
--- /dev/null
+++ b/arch/powerpc/include/asm/seccomp.h
@@ -0,0 +1,10 @@
+#ifndef _ASM_POWERPC_SECCOMP_H
+#define _ASM_POWERPC_SECCOMP_H
+
+#include <linux/unistd.h>
+
+#define __NR_seccomp_sigreturn_32 __NR_sigreturn
+
+#include <asm-generic/seccomp.h>
+
+#endif	/* _ASM_POWERPC_SECCOMP_H */
diff --git a/arch/powerpc/include/uapi/asm/Kbuild b/arch/powerpc/include/uapi/asm/Kbuild
index 7a3f795ac218..79c4068be278 100644
--- a/arch/powerpc/include/uapi/asm/Kbuild
+++ b/arch/powerpc/include/uapi/asm/Kbuild
@@ -25,7 +25,6 @@ header-y += posix_types.h
 header-y += ps3fb.h
 header-y += ptrace.h
 header-y += resource.h
-header-y += seccomp.h
 header-y += sembuf.h
 header-y += setup.h
 header-y += shmbuf.h
diff --git a/arch/powerpc/include/uapi/asm/seccomp.h b/arch/powerpc/include/uapi/asm/seccomp.h
deleted file mode 100644
index 00c1d9133cfe..000000000000
--- a/arch/powerpc/include/uapi/asm/seccomp.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef _ASM_POWERPC_SECCOMP_H
-#define _ASM_POWERPC_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#define __NR_seccomp_read_32 __NR_read
-#define __NR_seccomp_write_32 __NR_write
-#define __NR_seccomp_exit_32 __NR_exit
-#define __NR_seccomp_sigreturn_32 __NR_sigreturn

From - Thu Nov 08 21:37:20 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 3/8] microblaze: use asm-generic for seccomp.h
Date: Wed,  4 Mar 2015 17:27:03 -0800
Lines: 36
Approved: news@gmane.org
Message-ID: <1425518828-16017-4-git-send-email-keescook@chromium.org>
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Cc: Kees Cook <keescook@chromium.org>, Ingo Molnar <mingo@redhat.com>,
        Russell King <linux@arm.linux.org.uk>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
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To: akpm@linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/47337>

Switch to using the newly created asm-generic/seccomp.h for the seccomp
strict mode syscall definitions. Since microblaze is 32-bit, the COMPAT
seccomp defines are unused and can be dropped. The obsolete sigreturn
for seccomp strict mode is retained as an override. Remaining definitions
are identical.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 arch/microblaze/include/asm/seccomp.h | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/microblaze/include/asm/seccomp.h b/arch/microblaze/include/asm/seccomp.h
index 0d912758a0d7..204618a2ce84 100644
--- a/arch/microblaze/include/asm/seccomp.h
+++ b/arch/microblaze/include/asm/seccomp.h
@@ -3,14 +3,8 @@
 
 #include <linux/unistd.h>
 
-#define __NR_seccomp_read		__NR_read
-#define __NR_seccomp_write		__NR_write
-#define __NR_seccomp_exit		__NR_exit
 #define __NR_seccomp_sigreturn		__NR_sigreturn
 
-#define __NR_seccomp_read_32		__NR_read
-#define __NR_seccomp_write_32		__NR_write
-#define __NR_seccomp_exit_32		__NR_exit
-#define __NR_seccomp_sigreturn_32	__NR_sigreturn
+#include <asm-generic/seccomp.h>
 
 #endif	/* _ASM_MICROBLAZE_SECCOMP_H */
-- 
1.9.1




From - Thu Nov 08 21:37:20 2018
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X-Mozilla-Keys:                                                                                 
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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 5/8] parisc: switch to using asm-generic for seccomp.h
Date: Wed,  4 Mar 2015 17:27:05 -0800
Lines: 49
Approved: news@gmane.org
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Cc: Kees Cook <keescook@chromium.org>, Ingo Molnar <mingo@redhat.com>,
        Russell King <linux@arm.linux.org.uk>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
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        Helge Deller <deller@gmx.de>,
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To: akpm@linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/47338>

Switch to using the newly created asm-generic/seccomp.h for the seccomp
strict mode syscall definitions. Definitions were identical.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 arch/parisc/include/asm/Kbuild    |  1 +
 arch/parisc/include/asm/seccomp.h | 16 ----------------
 2 files changed, 1 insertion(+), 16 deletions(-)
 delete mode 100644 arch/parisc/include/asm/seccomp.h

diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 8686237a3c3c..12b341d04f88 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -20,6 +20,7 @@ generic-y += param.h
 generic-y += percpu.h
 generic-y += poll.h
 generic-y += preempt.h
+generic-y += seccomp.h
 generic-y += segment.h
 generic-y += topology.h
 generic-y += trace_clock.h
diff --git a/arch/parisc/include/asm/seccomp.h b/arch/parisc/include/asm/seccomp.h
deleted file mode 100644
index 015f7887aa29..000000000000
--- a/arch/parisc/include/asm/seccomp.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef _ASM_PARISC_SECCOMP_H
-#define _ASM_PARISC_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#define __NR_seccomp_read_32 __NR_read
-#define __NR_seccomp_write_32 __NR_write
-#define __NR_seccomp_exit_32 __NR_exit
-#define __NR_seccomp_sigreturn_32 __NR_rt_sigreturn
-
-#endif	/* _ASM_PARISC_SECCOMP_H */
-- 
1.9.1




From - Thu Nov 08 21:37:20 2018
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X-Mozilla-Keys:                                                                                 
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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 8/8] x86: switch to using asm-generic for seccomp.h
Date: Wed,  4 Mar 2015 17:27:08 -0800
Lines: 87
Approved: news@gmane.org
Message-ID: <1425518828-16017-9-git-send-email-keescook@chromium.org>
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Cc: Kees Cook <keescook@chromium.org>, Ingo Molnar <mingo@redhat.com>,
        Russell King <linux@arm.linux.org.uk>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
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        Helge Deller <deller@gmx.de>,
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        "David S. Miller" <davem@davemloft.net>, x86@kernel.org,
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        Laura Abbott <lauraa@codeaurora.org>,
        James Hogan <james.hogan@imgtec.com>,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.
To: akpm@linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/47339>

Switch to using the newly created asm-generic/seccomp.h for the seccomp
strict mode syscall definitions. The obsolete sigreturn syscall override
is retained in 32-bit mode, and the ia32 syscall overrides are used in
the compat case. Remaining definitions were identical.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 arch/x86/include/asm/seccomp.h    | 21 ++++++++++++++++++---
 arch/x86/include/asm/seccomp_32.h | 11 -----------
 arch/x86/include/asm/seccomp_64.h | 17 -----------------
 3 files changed, 18 insertions(+), 31 deletions(-)
 delete mode 100644 arch/x86/include/asm/seccomp_32.h
 delete mode 100644 arch/x86/include/asm/seccomp_64.h

diff --git a/arch/x86/include/asm/seccomp.h b/arch/x86/include/asm/seccomp.h
index 0f3d7f099224..0c8c7c8861b4 100644
--- a/arch/x86/include/asm/seccomp.h
+++ b/arch/x86/include/asm/seccomp.h
@@ -1,5 +1,20 @@
+#ifndef _ASM_X86_SECCOMP_H
+#define _ASM_X86_SECCOMP_H
+
+#include <asm/unistd.h>
+
 #ifdef CONFIG_X86_32
-# include <asm/seccomp_32.h>
-#else
-# include <asm/seccomp_64.h>
+#define __NR_seccomp_sigreturn		__NR_sigreturn
 #endif
+
+#ifdef CONFIG_COMPAT
+#include <asm/ia32_unistd.h>
+#define __NR_seccomp_read_32		__NR_ia32_read
+#define __NR_seccomp_write_32		__NR_ia32_write
+#define __NR_seccomp_exit_32		__NR_ia32_exit
+#define __NR_seccomp_sigreturn_32	__NR_ia32_sigreturn
+#endif
+
+#include <asm-generic/seccomp.h>
+
+#endif /* _ASM_X86_SECCOMP_H */
diff --git a/arch/x86/include/asm/seccomp_32.h b/arch/x86/include/asm/seccomp_32.h
deleted file mode 100644
index b811d6f5780c..000000000000
--- a/arch/x86/include/asm/seccomp_32.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef _ASM_X86_SECCOMP_32_H
-#define _ASM_X86_SECCOMP_32_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_sigreturn
-
-#endif /* _ASM_X86_SECCOMP_32_H */
diff --git a/arch/x86/include/asm/seccomp_64.h b/arch/x86/include/asm/seccomp_64.h
deleted file mode 100644
index 84ec1bd161a5..000000000000
--- a/arch/x86/include/asm/seccomp_64.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef _ASM_X86_SECCOMP_64_H
-#define _ASM_X86_SECCOMP_64_H
-
-#include <linux/unistd.h>
-#include <asm/ia32_unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#define __NR_seccomp_read_32 __NR_ia32_read
-#define __NR_seccomp_write_32 __NR_ia32_write
-#define __NR_seccomp_exit_32 __NR_ia32_exit
-#define __NR_seccomp_sigreturn_32 __NR_ia32_sigreturn
-
-#endif /* _ASM_X86_SECCOMP_64_H */
-- 
1.9.1




From - Thu Nov 08 21:37:20 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 0/8] switch to using asm-generic for seccomp.h
Date: Wed,  4 Mar 2015 17:27:00 -0800
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Cc: Kees Cook <keescook@chromium.org>, Ingo Molnar <mingo@redhat.com>,
        Russell King <linux@arm.linux.org.uk>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        "David S. Miller" <davem@davemloft.net>, x86@kernel.org,
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        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.
To: akpm@linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/47340>

Most architectures don't need to do much special for the strict-mode
seccomp syscall entries. Remove the redundant headers and reduce the
others.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
v3:
- split patch series by architecture
- fix up architectures that need sigreturn overrides (ingo)
v2:
- use Kbuild "generic-y" instead of explicit #include lines (sfr)




From - Thu Nov 08 21:37:20 2018
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X-Mozilla-Keys:                                                                                 
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From: Ingo Molnar <mingo@kernel.org>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH v3 8/8] x86: switch to using asm-generic for seccomp.h
Date: Thu, 5 Mar 2015 07:31:43 +0100
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Cc: akpm@linux-foundation.org, Ingo Molnar <mingo@redhat.com>,
	Russell King <linux@arm.linux.org.uk>,
	Michal Simek <monstr@monstr.eu>,
	Ralf Baechle <ralf@linux-mips.org>,
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	linux-mips@linux-mips.org, linux-parisc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org,
	lin
To: Kees Cook <keescook@chromium.org>
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* Kees Cook <keescook@chromium.org> wrote:

> Switch to using the newly created asm-generic/seccomp.h for the 
> seccomp strict mode syscall definitions. The obsolete sigreturn 
> syscall override is retained in 32-bit mode, and the ia32 syscall 
> overrides are used in the compat case. Remaining definitions were 
> identical.
> 
> Signed-off-by: Kees Cook <keescook@chromium.org>

Acked-by: Ingo Molnar <mingo@kernel.org>

Thanks,

	Ingo

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From: Yijing Wang <wangyijing@huawei.com>
Newsgroups: gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.ports.parisc
Subject: [PATCH v5 21/29] parisc/PCI: Use pci_scan_root_bus() for simplicity
Date: Fri, 6 Mar 2015 17:33:38 +0800
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Cc: Jiang Liu <jiang.liu@linux.intel.com>, <linux-pci@vger.kernel.org>,
	Yinghai Lu <yinghai@kernel.org>,
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	Yijing Wang <wangyijing0307@gmail.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	<linux-parisc@vger.kernel.org>, Bjorn He
To: Bjorn Helgaas <bhelgaas@google.com>
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From: Yijing Wang <wangyijing0307@gmail.com>

Now pci_bus_add_devices() has been ripped out
from pci_scan_root_bus(), we could use pci_scan_root_bus()
instead of pci_create_root_bus() + pci_scan_child_bus()
for simplicity.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: linux-parisc@vger.kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/parisc/dino.c    |    8 +++-----
 drivers/parisc/lba_pci.c |    7 ++-----
 2 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index a0580af..eb76a9d 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -981,11 +981,12 @@ static int __init dino_probe(struct parisc_device *dev)
 	dino_dev->hba.bus_num.end = 255;
 	dino_dev->hba.bus_num.flags = IORESOURCE_BUS;
 	pci_add_resource(&resources, &dino_dev->hba.bus_num);
+
 	/*
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev,
+	dino_dev->hba.hba_bus = bus = pci_scan_root_bus(&dev->dev,
 			 dino_current_bus, &dino_cfg_ops, NULL, &resources);
 	if (!bus) {
 		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
@@ -996,13 +997,10 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
-	max = pci_scan_child_bus(bus);
-	pci_bus_update_busn_res_end(bus, max);
-
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
 	 */
-	dino_current_bus = max + 1;
+	dino_current_bus = bus->busn_res.end + 1;
 	pci_bus_assign_resources(bus);
 	pci_bus_add_devices(bus);
 	return 0;
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index dceb9dd..ba6daec 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1422,7 +1422,6 @@ lba_driver_probe(struct parisc_device *dev)
 	void *tmp_obj;
 	char *version;
 	void __iomem *addr = ioremap_nocache(dev->hpa.start, 4096);
-	int max;
 
 	/* Read HW Rev First */
 	func_class = READ_REG32(addr + LBA_FCLASS);
@@ -1563,15 +1562,13 @@ lba_driver_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
-		pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
+		pci_scan_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
 				    cfg_ops, NULL, &resources);
 	if (!lba_bus) {
 		pci_free_resource_list(&resources);
 		return 0;
 	}
 
-	max = pci_scan_child_bus(lba_bus);
-
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
 		/* assign resources to un-initialized devices */
@@ -1599,7 +1596,7 @@ lba_driver_probe(struct parisc_device *dev)
 		lba_dev->flags |= LBA_FLAG_SKIP_PROBE;
 	}
 
-	lba_next_bus = max + 1;
+	lba_next_bus = pci_bus_child_max_busnr(lba_bus) + 1;
 	pci_bus_add_devices(lba_bus);
 
 	/* Whew! Finally done! Tell services we got this one covered. */
-- 
1.7.1


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On Sun, Feb 22, 2015 at 2:42 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> I know, I do, but that's sort of expected: most modern linux apps use
> mmap.  It's the older stuff that uses sys-v ipc, but perhaps for us this
> doesn't matter.

And that's the real truth.

The usage patterns that appear to matter are:
(a) An initial mmap, followed by an mmap with MAP_FIXED at the same
previous address.
(b) shmat with SHM_RND, in which case we get to round the resulting
address or return EINVAL.

Both of (a) and (b) work today if glibc sets SHMLBA to 4kb.

On parisc we simply can't deal with the user selecting an arbitrary address.

Cheers,
Carlos.
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--001a1147a4507c0b080510ce5798
Content-Type: text/plain; charset=UTF-8

Hi Helge et al,

I have tried this Debian 8.0 installation on a spare HD in my C3700. The
installer is painless & "runs like a Swiss watch". I had no trouble
installing a KDE desktop environment and booting it. The software
repository and the packages downloaded gave no trouble at all. The base OS
has been rock solid. I have installed boinc/seti@home and that has had the
box at 100% CPU load all night without trouble. Some packages have been a
bit slow/clunky but given the age of the C3700 that is no surprise.

The only package to consistently crash was "system settings" any time I
tried to change display settings. The base OS has not crashed AT ALL.

Cheers, Geoff.

On Wed, Feb 25, 2015 at 4:13 AM, Helge Deller <deller@gmx.de> wrote:

> Hello everyone,
>
> I've prepared some initial netboot installation medias for
>         DEBIAN 8.0 on HPPA
>
> which are available at:
>         http://ftp.debian-ports.org/debian-cd/hppa/debian-8.0/
>
> You can find the instructions on how to install Debian 8.0 on hppa in our
> wiki at
>         https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation
>
> The install images will install binaries from debian-ports (Debian
> "unstable").
>
> Major changes include:
> - Based on Debian 8.0 code base
> - Full systemd support
> - Linux kernel modules for SATA included
> - Lots of bug fixes
> - Should support all common PA-RISC hardware (on C8000 installation needs
> to be done via serial port)
>
> I'm happy to get your feedback (either as bug report or successful
> installation report).
>
> Helge
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

--001a1147a4507c0b080510ce5798
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div><div>Hi Helge et al,<br><br></div>I have tried this D=
ebian 8.0 installation on a spare HD in my C3700. The installer is painless=
 &amp; &quot;runs like a Swiss watch&quot;. I had no trouble installing a K=
DE desktop environment and booting it. The software repository and the pack=
ages downloaded gave no trouble at all. The base OS has been rock solid. I =
have installed boinc/seti@home and that has had the box at 100% CPU load al=
l night without trouble. Some packages have been a bit slow/clunky but give=
n the age of the C3700 that is no surprise.<br><br></div><div>The only pack=
age to consistently crash was &quot;system settings&quot; any time I tried =
to change display settings. The base OS has not crashed AT ALL.<br></div><d=
iv><br></div>Cheers, Geoff.<br></div><div class=3D"gmail_extra"><br><div cl=
ass=3D"gmail_quote">On Wed, Feb 25, 2015 at 4:13 AM, Helge Deller <span dir=
=3D"ltr">&lt;<a href=3D"mailto:deller@gmx.de" target=3D"_blank">deller@gmx.=
de</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"marg=
in:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello everyone,<=
br>
<br>
I&#39;ve prepared some initial netboot installation medias for<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 DEBIAN 8.0 on HPPA<br>
<br>
which are available at:<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 <a href=3D"http://ftp.debian-ports.org/debian-c=
d/hppa/debian-8.0/" target=3D"_blank">http://ftp.debian-ports.org/<u></u>de=
bian-cd/hppa/debian-8.0/</a><br>
<br>
You can find the instructions on how to install Debian 8.0 on hppa in our w=
iki at<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 <a href=3D"https://parisc.wiki.kernel.org/index=
.php/Debian_Ports_Installation" target=3D"_blank">https://parisc.wiki.kerne=
l.<u></u>org/index.php/Debian_Ports_<u></u>Installation</a><br>
<br>
The install images will install binaries from debian-ports (Debian &quot;un=
stable&quot;).<br>
<br>
Major changes include:<br>
- Based on Debian 8.0 code base<br>
- Full systemd support<br>
- Linux kernel modules for SATA included<br>
- Lots of bug fixes<br>
- Should support all common PA-RISC hardware (on C8000 installation needs t=
o be done via serial port)<br>
<br>
I&#39;m happy to get your feedback (either as bug report or successful inst=
allation report).<br>
<br>
Helge<br>
--<br>
To unsubscribe from this list: send the line &quot;unsubscribe linux-parisc=
&quot; in<br>
the body of a message to <a href=3D"mailto:majordomo@vger.kernel.org" targe=
t=3D"_blank">majordomo@vger.kernel.org</a><br>
More majordomo info at=C2=A0 <a href=3D"http://vger.kernel.org/majordomo-in=
fo.html" target=3D"_blank">http://vger.kernel.org/<u></u>majordomo-info.htm=
l</a><br>
</blockquote></div><br></div>

--001a1147a4507c0b080510ce5798--



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Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.pci,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha
Subject: [PATCH v6 22/30] parisc/PCI: Use pci_scan_root_bus() for simplicity
Date: Mon, 9 Mar 2015 10:34:19 +0800
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Cc: linux-ia64@vger.kernel.org, linux-pci@vger.kernel.org,
 Yijing Wang <wangyijing@huawei.com>, Guan
 Xuetao <gxt@mprc.pku.edu.cn>, Russell King <linux@arm.linux.org.uk>,
 x86@kernel.org, "James E.J. Bottomley" <jejb@parisc-linux.org>,
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To: Bjorn Helgaas <bhelgaas@google.com>
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From: Yijing Wang <wangyijing0307@gmail.com>

Now pci_bus_add_devices() has been ripped out
from pci_scan_root_bus(), we could use pci_scan_root_bus()
instead of pci_create_root_bus() + pci_scan_child_bus()
for simplicity.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: linux-parisc@vger.kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/parisc/dino.c    |    8 +++-----
 drivers/parisc/lba_pci.c |    7 ++-----
 2 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index a0580af..eb76a9d 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -981,11 +981,12 @@ static int __init dino_probe(struct parisc_device *dev)
 	dino_dev->hba.bus_num.end = 255;
 	dino_dev->hba.bus_num.flags = IORESOURCE_BUS;
 	pci_add_resource(&resources, &dino_dev->hba.bus_num);
+
 	/*
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev,
+	dino_dev->hba.hba_bus = bus = pci_scan_root_bus(&dev->dev,
 			 dino_current_bus, &dino_cfg_ops, NULL, &resources);
 	if (!bus) {
 		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
@@ -996,13 +997,10 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
-	max = pci_scan_child_bus(bus);
-	pci_bus_update_busn_res_end(bus, max);
-
 	/* This code *depends* on scanning being single threaded
 	 * if it isn't, this global bus number count will fail
 	 */
-	dino_current_bus = max + 1;
+	dino_current_bus = bus->busn_res.end + 1;
 	pci_bus_assign_resources(bus);
 	pci_bus_add_devices(bus);
 	return 0;
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index dceb9dd..ba6daec 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1422,7 +1422,6 @@ lba_driver_probe(struct parisc_device *dev)
 	void *tmp_obj;
 	char *version;
 	void __iomem *addr = ioremap_nocache(dev->hpa.start, 4096);
-	int max;
 
 	/* Read HW Rev First */
 	func_class = READ_REG32(addr + LBA_FCLASS);
@@ -1563,15 +1562,13 @@ lba_driver_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
-		pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
+		pci_scan_root_bus(&dev->dev, lba_dev->hba.bus_num.start,
 				    cfg_ops, NULL, &resources);
 	if (!lba_bus) {
 		pci_free_resource_list(&resources);
 		return 0;
 	}
 
-	max = pci_scan_child_bus(lba_bus);
-
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
 		/* assign resources to un-initialized devices */
@@ -1599,7 +1596,7 @@ lba_driver_probe(struct parisc_device *dev)
 		lba_dev->flags |= LBA_FLAG_SKIP_PROBE;
 	}
 
-	lba_next_bus = max + 1;
+	lba_next_bus = pci_bus_child_max_busnr(lba_bus) + 1;
 	pci_bus_add_devices(lba_bus);
 
 	/* Whew! Finally done! Tell services we got this one covered. */
-- 
1.7.1

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On 24 February 2015 at 19:13, Helge Deller <deller@gmx.de> wrote:
> I've prepared some initial netboot installation medias for
>         DEBIAN 8.0 on HPPA

I'd like to say thank you as well. I've been intending to test debian
on a J6700 I rescued, and I got to booting it after seeing this
announcement.

Only the drives in the machine have an HP-UX installation I'd like to
preserve for now and I haven't been able to dig out my spares yet.
I'll see if I can get around to trying the install later.

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From - Thu Nov 08 21:37:20 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: Pre-DEBIAN 8.0 install images for HPPA architecture (debian-ports
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To: Harri Haataja <realblades@gmail.com>, debian-hppa@lists.debian.org
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On 09.03.2015 22:11, Harri Haataja wrote:
> On 24 February 2015 at 19:13, Helge Deller <deller@gmx.de> wrote:
>> I've prepared some initial netboot installation medias for
>>          DEBIAN 8.0 on HPPA
>
> I'd like to say thank you as well. I've been intending to test debian
> on a J6700 I rescued,

J6700 works pretty fine.

>and I got to booting it after seeing this
> announcement.
>
> Only the drives in the machine have an HP-UX installation I'd like to
> preserve for now and I haven't been able to dig out my spares yet.
> I'll see if I can get around to trying the install later.

FYI, you could even e.g. add a SATA PCI card and attach SATA drives if you like.
The only important thing is, that the bootloader (PALO) and the /boot partition needs to be on a (small) SCSI disc.

Helge
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From - Thu Nov 08 21:37:20 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: BUG: non-zero nr_pmds on freeing mm: -1
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With 4.0.0-rc3+ #1 SMP, I get hundreds of these BUG messages:
BUG: non-zero nr_pmds on freeing mm: -1

However, system does boot.

Dave
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From - Thu Nov 08 21:37:21 2018
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Subject: Re: BUG: non-zero nr_pmds on freeing mm: -1
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On 2015-03-11 7:32 AM, Domenico Andreoli wrote:
> I also do. Related to https://lkml.org/lkml/2015/2/13/431?
More info is here:
http://www.spinics.net/lists/linux-mm/msg84937.html

There doesn't seem to be a patch yet.

Dave

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From - Thu Nov 08 21:37:21 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
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Cc: Kees Cook <keescook@chromium.org>, Ingo Molnar <mingo@redhat.com>,
	Russell King <linux@arm.linux.org.uk>,
	Michal Simek <monstr@monstr.eu>,
	Ralf Baechle <ralf@linux-mips.org>,
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On Wed, Mar 4, 2015 at 5:27 PM, Kees Cook <keescook@chromium.org> wrote:
> Most architectures don't need to do much special for the strict-mode
> seccomp syscall entries. Remove the redundant headers and reduce the
> others.
>
> Signed-off-by: Kees Cook <keescook@chromium.org>

Hi Andrew,

Just a quick ping: are you able to pick up this series, or should I
try to get this in on a per-arch basis?

Thanks!

-Kees

> ---
> v3:
> - split patch series by architecture
> - fix up architectures that need sigreturn overrides (ingo)
> v2:
> - use Kbuild "generic-y" instead of explicit #include lines (sfr)
>



-- 
Kees Cook
Chrome OS Security

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I thought this patch was supposed to address the problem?
https://lkml.org/lkml/2015/2/26/230

However, its not fixed it for me either in 4.0.0-rc3.

-Graham

On 12 March 2015 at 00:44, John David Anglin <dave.anglin@bell.net> wrote:
> On 2015-03-11 7:32 AM, Domenico Andreoli wrote:
>>
>> I also do. Related to https://lkml.org/lkml/2015/2/13/431?
>
> More info is here:
> http://www.spinics.net/lists/linux-mm/msg84937.html
>
> There doesn't seem to be a patch yet.
>
>
> Dave
>
> --
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On 2015-03-11, at 7:31 PM, Graham Gower wrote:

> I thought this patch was supposed to address the problem?
> https://lkml.org/lkml/2015/2/26/230
> 
> However, its not fixed it for me either in 4.0.0-rc3.

I doubt the patch is correct for parisc.  I believe the system where I saw the BUG messages
has PT_NLEVELS == 3.

Dave
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Use %pS for actual addresses, otherwise you'll get bad output
on arches like ppc64 where %pF expects a function descriptor.  Even on
other architectures, refrain from setting a bad example that people
copy.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: linux-parisc@vger.kernel.org
---
 drivers/parisc/superio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 8be2096..38c5440 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -348,7 +348,7 @@ int superio_fixup_irq(struct pci_dev *pcidev)
 		BUG();
 		return -1;
 	}
-	printk("superio_fixup_irq(%s) ven 0x%x dev 0x%x from %pf\n",
+	printk("superio_fixup_irq(%s) ven 0x%x dev 0x%x from %ps\n",
 		pci_name(pcidev),
 		pcidev->vendor, pcidev->device,
 		__builtin_return_address(0));
-- 
2.1.0


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On Wed, 2015-03-11 at 22:13 -0500, Scott Wood wrote:
> Use %pS for actual addresses, otherwise you'll get bad output
> on arches like ppc64 where %pF expects a function descriptor.  Even on
> other architectures, refrain from setting a bad example that people
> copy.

Are you sure about this?  Parisc64 is a function description
architecture.  There may be a misunderstanding about what
__builtin_return_address(0) is supposed to return, but I'm certain the
person who added the code thought it returned a function pointer, which
on parisc64 would be a descriptor.

James


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On 2015-03-12 8:11 AM, James Bottomley wrote:
> On Wed, 2015-03-11 at 22:13 -0500, Scott Wood wrote:
>> Use %pS for actual addresses, otherwise you'll get bad output
>> on arches like ppc64 where %pF expects a function descriptor.  Even on
>> other architectures, refrain from setting a bad example that people
>> copy.
> Are you sure about this?  Parisc64 is a function description
> architecture.  There may be a misunderstanding about what
> __builtin_return_address(0) is supposed to return, but I'm certain the
> person who added the code thought it returned a function pointer, which
> on parisc64 would be a descriptor.

__builtin_return_address(0) returns the return address in the calling procedure
ignoring import/export stubs.  There are no function descriptors for return addresses.
Thus, it can't return a function pointer.

There are no function descriptors in 32-bit parisc when the -mfast-indirect-calls
compiler option is used.

This option used to be used for 64-bit kernel builds but this broke when the
-mfast-indirect-calls was fixed for user space (gcl uses it).  I worked a bit
on trying to eliminate function descriptors from the 64-bit kernel for performance
but I don't have a working change.

Dave

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Subject: Re: [PATCH 14/22] parisc: %pF is only for function pointers
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On Thu, 2015-03-12 at 08:11 -0400, James Bottomley wrote:
> On Wed, 2015-03-11 at 22:13 -0500, Scott Wood wrote:
> > Use %pS for actual addresses, otherwise you'll get bad output
> > on arches like ppc64 where %pF expects a function descriptor.  Even on
> > other architectures, refrain from setting a bad example that people
> > copy.
> 
> Are you sure about this?  Parisc64 is a function description
> architecture.  There may be a misunderstanding about what
> __builtin_return_address(0) is supposed to return, but I'm certain the
> person who added the code thought it returned a function pointer, which
> on parisc64 would be a descriptor.

I wasn't aware that parisc64 used descriptors, but I don't see how you'd
get one out of __builtin_return_address(0) since it's not usually a
function entry point (plus, GCC documents it as returning void *).

-Scott



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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 14/22] parisc: %pF is only for function pointers
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On Thu, 2015-03-12 at 11:14 -0500, Scott Wood wrote:
> On Thu, 2015-03-12 at 08:11 -0400, James Bottomley wrote:
> > On Wed, 2015-03-11 at 22:13 -0500, Scott Wood wrote:
> > > Use %pS for actual addresses, otherwise you'll get bad output
> > > on arches like ppc64 where %pF expects a function descriptor.  Even on
> > > other architectures, refrain from setting a bad example that people
> > > copy.
> > 
> > Are you sure about this?  Parisc64 is a function description
> > architecture.  There may be a misunderstanding about what
> > __builtin_return_address(0) is supposed to return, but I'm certain the
> > person who added the code thought it returned a function pointer, which
> > on parisc64 would be a descriptor.
> 
> I wasn't aware that parisc64 used descriptors, but I don't see how you'd
> get one out of __builtin_return_address(0) since it's not usually a
> function entry point (plus, GCC documents it as returning void *).

I was more thinking that this message is printed for every boot with a
superio chip (which is a lot of our boxes).  How come no-one has
complained on parisc64 if it's doing the wrong thing.

James


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From - Thu Nov 08 21:37:22 2018
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
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Subject: Re: BUG: non-zero nr_pmds on freeing mm: -1
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Cc: Graham Gower <graham.gower@gmail.com>,
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Hi,

On Wed, Mar 11, 2015 at 08:21:35PM -0400, John David Anglin wrote:
> On 2015-03-11, at 7:31 PM, Graham Gower wrote:
> > I thought this patch was supposed to address the problem?
> > https://lkml.org/lkml/2015/2/26/230
> > 
> > However, its not fixed it for me either in 4.0.0-rc3.
> 
> I doubt the patch is correct for parisc. I believe the system where
> I saw the BUG messages has PT_NLEVELS == 3.

For 32-bit kernels, the fix helped.

A.
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From - Thu Nov 08 21:37:22 2018
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Subject: Re: [PATCH 14/22] parisc: %pF is only for function pointers
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Hi,

On Thu, Mar 12, 2015 at 02:04:41PM -0400, James Bottomley wrote:
> On Thu, 2015-03-12 at 11:14 -0500, Scott Wood wrote:
> > On Thu, 2015-03-12 at 08:11 -0400, James Bottomley wrote:
> > > On Wed, 2015-03-11 at 22:13 -0500, Scott Wood wrote:
> > > > Use %pS for actual addresses, otherwise you'll get bad output
> > > > on arches like ppc64 where %pF expects a function descriptor.  Even on
> > > > other architectures, refrain from setting a bad example that people
> > > > copy.
> > > 
> > > Are you sure about this?  Parisc64 is a function description
> > > architecture.  There may be a misunderstanding about what
> > > __builtin_return_address(0) is supposed to return, but I'm certain the
> > > person who added the code thought it returned a function pointer, which
> > > on parisc64 would be a descriptor.
> > 
> > I wasn't aware that parisc64 used descriptors, but I don't see how you'd
> > get one out of __builtin_return_address(0) since it's not usually a
> > function entry point (plus, GCC documents it as returning void *).
> 
> I was more thinking that this message is printed for every boot with a
> superio chip (which is a lot of our boxes).  How come no-one has
> complained on parisc64 if it's doing the wrong thing.

It's dead code behind #ifdef DEBUG_SUPERIO_INIT.

A.
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From - Thu Nov 08 21:37:22 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: BUG: non-zero nr_pmds on freeing mm: -1
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On 2015-03-12 3:35 PM, Aaro Koskinen wrote:
> Hi,
>
> On Wed, Mar 11, 2015 at 08:21:35PM -0400, John David Anglin wrote:
>> On 2015-03-11, at 7:31 PM, Graham Gower wrote:
>>> I thought this patch was supposed to address the problem?
>>> https://lkml.org/lkml/2015/2/26/230
>>>
>>> However, its not fixed it for me either in 4.0.0-rc3.
>> I doubt the patch is correct for parisc. I believe the system where
>> I saw the BUG messages has PT_NLEVELS == 3.
> For 32-bit kernels, the fix helped.
32-bit kernels have PT_NLEVELS == 2.  I think the define needs to be 
moved outside #if/#endif
but didn't get a chance to test last night.

Dave

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From: Aaro Koskinen <aaro.koskinen@iki.fi>
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Subject: Re: BUG: non-zero nr_pmds on freeing mm: -1
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Hi,

On Thu, Mar 12, 2015 at 03:51:11PM -0400, John David Anglin wrote:
> On 2015-03-12 3:35 PM, Aaro Koskinen wrote:
> >On Wed, Mar 11, 2015 at 08:21:35PM -0400, John David Anglin wrote:
> >>On 2015-03-11, at 7:31 PM, Graham Gower wrote:
> >>>I thought this patch was supposed to address the problem?
> >>>https://lkml.org/lkml/2015/2/26/230
> >>>
> >>>However, its not fixed it for me either in 4.0.0-rc3.
> >>I doubt the patch is correct for parisc. I believe the system where
> >>I saw the BUG messages has PT_NLEVELS == 3.
> >For 32-bit kernels, the fix helped.
> 32-bit kernels have PT_NLEVELS == 2.  I think the define needs to be moved
> outside #if/#endif
> but didn't get a chance to test last night.

Not sure if that would be correct. The fix disabled PMD accounting
on 32-bit kernels because that level does not exist, but on
64-bit you probably would need it? Maybe your bug is different.
Does it occur on every process exit, or just occasionally?
(On 32-bit every exit triggered it.)

A.
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On 2015-03-12 4:15 PM, Aaro Koskinen wrote:
> Not sure if that would be correct. The fix disabled PMD accounting
> on 32-bit kernels because that level does not exist, but on
> 64-bit you probably would need it? Maybe your bug is different.
> Does it occur on every process exit, or just occasionally?
> (On 32-bit every exit triggered it.)
I would guess it occurs on every process exit.  Note it is mm -1 which I 
didn't see in any
of the other messages that I looked at.

Dave

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Use %ps for actual addresses, otherwise you'll get bad output
on arches like parisc64 where %pf expects a function descriptor.

This wasn't normally seen on parisc64 because the code is not built
unless DEBUG_SUPERIO_INIT is manually defined.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: linux-parisc@vger.kernel.org
cc: James Bottomley <James.Bottomley@HansenPartnership.com>
---
v2: Commit message updates

 drivers/parisc/superio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 8be2096..38c5440 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -348,7 +348,7 @@ int superio_fixup_irq(struct pci_dev *pcidev)
 		BUG();
 		return -1;
 	}
-	printk("superio_fixup_irq(%s) ven 0x%x dev 0x%x from %pf\n",
+	printk("superio_fixup_irq(%s) ven 0x%x dev 0x%x from %ps\n",
 		pci_name(pcidev),
 		pcidev->vendor, pcidev->device,
 		__builtin_return_address(0));
-- 
2.1.0


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On Thu, Mar 12, 2015 at 03:51:11PM -0400, John David Anglin wrote:
> On 2015-03-12 3:35 PM, Aaro Koskinen wrote:
> >Hi,
> >
> >On Wed, Mar 11, 2015 at 08:21:35PM -0400, John David Anglin wrote:
> >>On 2015-03-11, at 7:31 PM, Graham Gower wrote:
> >>>I thought this patch was supposed to address the problem?
> >>>https://lkml.org/lkml/2015/2/26/230
> >>>
> >>>However, its not fixed it for me either in 4.0.0-rc3.
> >>I doubt the patch is correct for parisc. I believe the system where
> >>I saw the BUG messages has PT_NLEVELS == 3.
> >For 32-bit kernels, the fix helped.
> 32-bit kernels have PT_NLEVELS == 2.  I think the define needs to be moved
> outside #if/#endif
> but didn't get a chance to test last night.

There's hack in pgd_alloc() on parisc to initialize one pmd, which is not
accounted and we get underflow on exit. We need to adjust accounting for
that pmd.

Could you try the patch below?

diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index f213f5b4c423..8ee9a0bdc468 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -38,6 +38,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 		/* The first pmd entry also is marked with _PAGE_GATEWAY as
 		 * a signal that this pmd may not be freed */
 		__pgd_val_set(*pgd, PxD_FLAG_ATTACHED);
+		mm_inc_nr_pmds(mm);
 #endif
 	}
 	return actual_pgd;
-- 
 Kirill A. Shutemov
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Subject: Re: BUG: non-zero nr_pmds on freeing mm: -1
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On Thu, Mar 12, 2015 at 08:41:37PM -0400, John David Anglin wrote:
> On 2015-03-12, at 6:07 PM, Kirill A. Shutemov wrote:
> 
> > There's hack in pgd_alloc() on parisc to initialize one pmd, which is not
> > accounted and we get underflow on exit. We need to adjust accounting for
> > that pmd.
> > 
> > Could you try the patch below?
> > 
> > diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
> > index f213f5b4c423..8ee9a0bdc468 100644
> > --- a/arch/parisc/include/asm/pgalloc.h
> > +++ b/arch/parisc/include/asm/pgalloc.h
> > @@ -38,6 +38,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
> > 		/* The first pmd entry also is marked with _PAGE_GATEWAY as
> > 		 * a signal that this pmd may not be freed */
> > 		__pgd_val_set(*pgd, PxD_FLAG_ATTACHED);
> > +		mm_inc_nr_pmds(mm);
> > #endif
> > 	}
> > 	return actual_pgd;
> 
> The patch fixes the BUG messages.
> 
> Helge, the #ifdef in pgd_alloc doesn't seem correct.  We only have a L2/L3 scheme when
> "defined(CONFIG_64BIT) && defined(CONFIG_PARISC_PAGE_SIZE_4KB)".

Looks like you're correct. But that's separate issue. Please, post a
patch.

-- 
 Kirill A. Shutemov
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There's hack in pgd_alloc() on parisc to initialize one pmd, which is
not accounted. It leads to underflow on exit.

Let's adjust nr_pmds on pgd_alloc() to get accounting correct.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: John David Anglin <dave.anglin@bell.net>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Graham Gower <graham.gower@gmail.com>
Cc: Domenico Andreoli <cavokz@gmail.com>
---
 arch/parisc/include/asm/pgalloc.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index 55ad8be9b7f3..068b2fb9a47c 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -38,6 +38,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 		/* The first pmd entry also is marked with _PAGE_GATEWAY as
 		 * a signal that this pmd may not be freed */
 		__pgd_val_set(*pgd, PxD_FLAG_ATTACHED);
+		mm_inc_nr_pmds(mm);
 #endif
 	}
 	return actual_pgd;
-- 
2.1.4

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From: Alex Dowad <alexinbeijing@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 22/32] parisc: copy_thread(): rename 'arg' argument to 'kthread_arg'
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The 'arg' argument to copy_thread() is only ever used when forking a new
kernel thread. Hence, rename it to 'kthread_arg' for clarity (and consistency
with do_fork() and other arch-specific implementations of copy_thread()).

Signed-off-by: Alex Dowad <alexinbeijing@gmail.com>
---
 arch/parisc/kernel/process.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 8a488c2..809905a 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -181,9 +181,12 @@ int dump_task_fpu (struct task_struct *tsk, elf_fpregset_t *r)
 	return 1;
 }
 
+/*
+ * Copy architecture-specific thread state
+ */
 int
 copy_thread(unsigned long clone_flags, unsigned long usp,
-	    unsigned long arg, struct task_struct *p)
+	    unsigned long kthread_arg, struct task_struct *p)
 {
 	struct pt_regs *cregs = &(p->thread.regs);
 	void *stack = task_stack_page(p);
@@ -195,11 +198,10 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 	extern void * const child_return;
 
 	if (unlikely(p->flags & PF_KTHREAD)) {
+		/* kernel thread */
 		memset(cregs, 0, sizeof(struct pt_regs));
 		if (!usp) /* idle thread */
 			return 0;
-
-		/* kernel thread */
 		/* Must exit via ret_from_kernel_thread in order
 		 * to call schedule_tail()
 		 */
@@ -215,7 +217,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
 #else
 		cregs->gr[26] = usp;
 #endif
-		cregs->gr[25] = arg;
+		cregs->gr[25] = kthread_arg;
 	} else {
 		/* user thread */
 		/* usp must be word aligned.  This also prevents users from
-- 
2.0.0.GIT


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In-Reply-To: <1426242602-52804-1-git-send-email-kirill.shutemov@linux.intel.com>
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This fixes the problem on my C8000.

Tested-by: graham.gower@gmail.com

On 13 March 2015 at 21:00, Kirill A. Shutemov
<kirill.shutemov@linux.intel.com> wrote:
> There's hack in pgd_alloc() on parisc to initialize one pmd, which is
> not accounted. It leads to underflow on exit.
>
> Let's adjust nr_pmds on pgd_alloc() to get accounting correct.
>
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> Cc: John David Anglin <dave.anglin@bell.net>
> Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
> Cc: Graham Gower <graham.gower@gmail.com>
> Cc: Domenico Andreoli <cavokz@gmail.com>
> ---
>  arch/parisc/include/asm/pgalloc.h | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
> index 55ad8be9b7f3..068b2fb9a47c 100644
> --- a/arch/parisc/include/asm/pgalloc.h
> +++ b/arch/parisc/include/asm/pgalloc.h
> @@ -38,6 +38,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
>                 /* The first pmd entry also is marked with _PAGE_GATEWAY as
>                  * a signal that this pmd may not be freed */
>                 __pgd_val_set(*pgd, PxD_FLAG_ATTACHED);
> +               mm_inc_nr_pmds(mm);
>  #endif
>         }
>         return actual_pgd;
> --
> 2.1.4
>
--
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From - Thu Nov 08 21:37:23 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Add compile-time check when adding new syscalls
Date: Sat, 14 Mar 2015 21:34:16 +0100
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 5a8997d..802f807 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -41,20 +41,25 @@
 #define ENTRY_UHOH(_name_) .dword sys32_##unimplemented
 #define ENTRY_OURS(_name_) .dword parisc_##_name_
 #define ENTRY_COMP(_name_) .dword compat_sys_##_name_
+#define SYSCALLTABLE_NAME  syscall_table_compat
 #elif defined(CONFIG_64BIT) && defined(SYSCALL_TABLE_64BIT)
 #define ENTRY_SAME(_name_) .dword sys_##_name_
 #define ENTRY_DIFF(_name_) .dword sys_##_name_
 #define ENTRY_UHOH(_name_) .dword sys_##_name_
 #define ENTRY_OURS(_name_) .dword sys_##_name_
 #define ENTRY_COMP(_name_) .dword sys_##_name_
+#define SYSCALLTABLE_NAME  syscall_table_64bit
 #else
 #define ENTRY_SAME(_name_) .word sys_##_name_
 #define ENTRY_DIFF(_name_) .word sys_##_name_
 #define ENTRY_UHOH(_name_) .word sys_##_name_
 #define ENTRY_OURS(_name_) .word parisc_##_name_
 #define ENTRY_COMP(_name_) .word sys_##_name_
+#define SYSCALLTABLE_NAME  syscall_table_32bit
 #endif
 
+        .local SYSCALLTABLE_NAME
+SYSCALLTABLE_NAME:
 	ENTRY_SAME(restart_syscall)	/* 0 */
 	ENTRY_SAME(exit)
 	ENTRY_SAME(fork_wrapper)
@@ -439,8 +444,21 @@
 	ENTRY_SAME(bpf)
 	ENTRY_COMP(execveat)
 
+
+        .size SYSCALLTABLE_NAME, . - SYSCALLTABLE_NAME
+        .type SYSCALLTABLE_NAME, @object
+
+#if defined(CONFIG_64BIT)
+.ifne (. - SYSCALLTABLE_NAME) - (__NR_Linux_syscalls * 8)
+#else /* !defined(CONFIG_64BIT) */
+.ifne (. - SYSCALLTABLE_NAME) - (__NR_Linux_syscalls * 4)
+#endif
+.error "syscall table not in sync with value of __NR_Linux_syscalls"
+.endif
+
 	/* Nothing yet */
 
+#undef SYSCALLTABLE_NAME
 #undef ENTRY_SAME
 #undef ENTRY_DIFF
 #undef ENTRY_UHOH
--
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From - Thu Nov 08 21:37:23 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: compat Fix siginfo_t -> compat_siginfo_t conversion
 on big endian
Date: Sun, 15 Mar 2015 21:00:41 +0100
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Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Bamvor Jian Zhang <bamvor.zhangjian@huawei.com>
To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
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This patch is basically the same as commit 9d42d48 from Catalin Marinas
but adopted to the parisc architecture.

The native (64-bit) sigval_t union contains sival_int (32-bit) and sival_ptr
(64-bit). When a compat application invokes a syscall that takes a sigval_t
value (as part of a larger structure, e.g.  compat_sys_mq_notify,
compat_sys_timer_create), the compat_sigval_t union is converted to the native
sigval_t with sival_int overlapping with either the least or the most
significant half of sival_ptr, depending on endianness. When the corresponding
signal is delivered to a compat application, on big endian the current
(compat_uptr_t)sival_ptr cast always returns 0 since sival_int corresponds to
the top part of sival_ptr. This patch fixes copy_siginfo_to_user32() so that
sival_int is copied to the compat_siginfo_t structure.

Cc: <stable@vger.kernel.org>
Reported-by: Bamvor Jian Zhang <bamvor.zhangjian@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index 984abbe..d1f1fcd 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -322,7 +322,6 @@ int
 copy_siginfo_to_user32 (compat_siginfo_t __user *to, const siginfo_t *from)
 {
 	compat_uptr_t addr;
-	compat_int_t val;
 	int err;
 
 	if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
@@ -361,15 +360,13 @@ copy_siginfo_to_user32 (compat_siginfo_t __user *to, const siginfo_t *from)
 		case __SI_TIMER >> 16:
 			err |= __put_user(from->si_tid, &to->si_tid);
 			err |= __put_user(from->si_overrun, &to->si_overrun);
-			val = (compat_int_t)from->si_int;
-			err |= __put_user(val, &to->si_int);
+			err |= __put_user(from->si_int, &to->si_int);
 			break;
 		case __SI_RT >> 16:	/* Not generated by the kernel as of now.  */
 		case __SI_MESGQ >> 16:
 			err |= __put_user(from->si_uid, &to->si_uid);
 			err |= __put_user(from->si_pid, &to->si_pid);
-			val = (compat_int_t)from->si_int;
-			err |= __put_user(val, &to->si_int);
+			err |= __put_user(from->si_int, &to->si_int);
 			break;
 		}
 	}
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH, v2] parisc: Add compile-time check when adding new
 syscalls
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 5a8997d..0959fcc 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -55,6 +55,7 @@
 #define ENTRY_COMP(_name_) .word sys_##_name_
 #endif
 
+99:
 	ENTRY_SAME(restart_syscall)	/* 0 */
 	ENTRY_SAME(exit)
 	ENTRY_SAME(fork_wrapper)
@@ -439,6 +440,15 @@
 	ENTRY_SAME(bpf)
 	ENTRY_COMP(execveat)
 
+
+#if defined(CONFIG_64BIT)
+.ifne (. - 99b) - (__NR_Linux_syscalls * 8)
+#else /* !defined(CONFIG_64BIT) */
+.ifne (. - 99b) - (__NR_Linux_syscalls * 4)
+#endif
+.error "size of syscall table does not fit value of __NR_Linux_syscalls"
+.endif
+
 	/* Nothing yet */
 
 #undef ENTRY_SAME
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix pmd code to depend on PT_NLEVELS value, not on
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Make the code which sets up the pmd depend on PT_NLEVELS == 3, not on
CONFIG_64BIT. The reason is, that a 64bit kernel with a page size
greater than 4k doesn't need the pmd and thus has PT_NLEVELS = 2.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index 8ee9a0b..c500730 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -26,7 +26,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 
 	if (likely(pgd != NULL)) {
 		memset(pgd, 0, PAGE_SIZE<<PGD_ALLOC_ORDER);
-#ifdef CONFIG_64BIT
+#if PT_NLEVELS == 3
 		actual_pgd += PTRS_PER_PGD;
 		/* Populate first pmd with allocated memory.  We mark it
 		 * with PxD_FLAG_ATTACHED as a signal to the system that this
@@ -46,7 +46,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 
 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 {
-#ifdef CONFIG_64BIT
+#if PT_NLEVELS == 3
 	pgd -= PTRS_PER_PGD;
 #endif
 	free_pages((unsigned long)pgd, PGD_ALLOC_ORDER);
@@ -73,12 +73,10 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 
 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 {
-#ifdef CONFIG_64BIT
 	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
 		/* This is the permanent pmd attached to the pgd;
 		 * cannot free it */
 		return;
-#endif
 	free_pages((unsigned long)pmd, PMD_ORDER);
 }
 
@@ -100,7 +98,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 static inline void
 pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
 {
-#ifdef CONFIG_64BIT
+#if PT_NLEVELS == 3
 	/* preserve the gateway marker if this is the beginning of
 	 * the permanent pmd */
 	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Do not hardcode PAGE_SIZE dependend values in
 assembler
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 2ab16bb..c9bbf88 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -640,9 +640,9 @@
 	 * Check "subtle" note in pacache.S re: r23/r26.
 	 */
 #ifdef CONFIG_64BIT
-	extrd,u,*=	\va,41,1,%r0
+	extrd,u,*=	\va,63-PAGE_SHIFT,1,%r0
 #else
-	extrw,u,=	\va,9,1,%r0
+	extrw,u,=	\va,31-PAGE_SHIFT,1,%r0
 #endif
 	or,COND(tr)	%r23,%r0,\pte
 	or		%r26,%r0,\pte
--
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: Do not hardcode PAGE_SIZE dependend values in
 assembler
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ignore this patch - it's wrong.

Helge

On 16.03.2015 21:21, Helge Deller wrote:
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
> index 2ab16bb..c9bbf88 100644
> --- a/arch/parisc/kernel/entry.S
> +++ b/arch/parisc/kernel/entry.S
> @@ -640,9 +640,9 @@
>   	 * Check "subtle" note in pacache.S re: r23/r26.
>   	 */
>   #ifdef CONFIG_64BIT
> -	extrd,u,*=	\va,41,1,%r0
> +	extrd,u,*=	\va,63-PAGE_SHIFT,1,%r0
>   #else
> -	extrw,u,=	\va,9,1,%r0
> +	extrw,u,=	\va,31-PAGE_SHIFT,1,%r0
>   #endif
>   	or,COND(tr)	%r23,%r0,\pte
>   	or		%r26,%r0,\pte
>

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From - Thu Nov 08 21:37:23 2018
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From: Catalin Marinas <catalin.marinas@arm.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: compat Fix siginfo_t -> compat_siginfo_t
 conversion on big endian
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To: Helge Deller <deller@gmx.de>
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On Sun, Mar 15, 2015 at 08:00:41PM +0000, Helge Deller wrote:
> This patch is basically the same as commit 9d42d48 from Catalin Marinas
> but adopted to the parisc architecture.
> 
> The native (64-bit) sigval_t union contains sival_int (32-bit) and sival_ptr
> (64-bit). When a compat application invokes a syscall that takes a sigval_t
> value (as part of a larger structure, e.g.  compat_sys_mq_notify,
> compat_sys_timer_create), the compat_sigval_t union is converted to the native
> sigval_t with sival_int overlapping with either the least or the most
> significant half of sival_ptr, depending on endianness. When the corresponding
> signal is delivered to a compat application, on big endian the current
> (compat_uptr_t)sival_ptr cast always returns 0 since sival_int corresponds to
> the top part of sival_ptr. This patch fixes copy_siginfo_to_user32() so that
> sival_int is copied to the compat_siginfo_t structure.

Se below, I don't think this patch is needed.

> diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
> index 984abbe..d1f1fcd 100644
> --- a/arch/parisc/kernel/signal32.c
> +++ b/arch/parisc/kernel/signal32.c
> @@ -322,7 +322,6 @@ int
>  copy_siginfo_to_user32 (compat_siginfo_t __user *to, const siginfo_t *from)
>  {
>  	compat_uptr_t addr;
> -	compat_int_t val;
>  	int err;
>  
>  	if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
> @@ -361,15 +360,13 @@ copy_siginfo_to_user32 (compat_siginfo_t __user *to, const siginfo_t *from)
>  		case __SI_TIMER >> 16:
>  			err |= __put_user(from->si_tid, &to->si_tid);
>  			err |= __put_user(from->si_overrun, &to->si_overrun);
> -			val = (compat_int_t)from->si_int;
> -			err |= __put_user(val, &to->si_int);
> +			err |= __put_user(from->si_int, &to->si_int);

Is there any actual change here? The native si_int is 32-bit already,
same as compat_int_t. I didn't think parisc needed fixing (only if it
was using si_ptr which is 64-bit on a 64-bit architecture).

>  			break;
>  		case __SI_RT >> 16:	/* Not generated by the kernel as of now.  */
>  		case __SI_MESGQ >> 16:
>  			err |= __put_user(from->si_uid, &to->si_uid);
>  			err |= __put_user(from->si_pid, &to->si_pid);
> -			val = (compat_int_t)from->si_int;
> -			err |= __put_user(val, &to->si_int);
> +			err |= __put_user(from->si_int, &to->si_int);

Same here.

-- 
Catalin
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm
Subject: [PATCH] mm: don't count preallocated pmds
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Cc: jejb@parisc-linux.org, dave.anglin@bell.net
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
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Hi

Here I'm sending a patch that fixes numerous "BUG: non-zero nr_pmds on 
freeing mm: -1" errors on 64-bit PA-RISC kernel.

I think the patch posted here 
http://www.spinics.net/lists/linux-parisc/msg05981.html is incorrect, it 
wouldn't work if the affected address range is freed and allocated 
multiple times.
	- 1. alloc pgd with built-in pmd, the count of pmds is 1
	- 2. free the range covered by the built-in pmd, the count of pmds 
		is 0, but the built-in pmd is still present
	- 3. alloc some memory in the range affected by the built-in pmd, 
		the count of pmds is still 0
	- 4. free the range covered by the built-in pmd, the counter 
		underflows to -1

Mikulas


From: Mikulas Patocka <mpatocka@redhat.com>

The patch dc6c9a35b66b520cf67e05d8ca60ebecad3b0479 that counts pmds 
allocated for a process introduced a bug on 64-bit PA-RISC kernels. There 
are many "BUG: non-zero nr_pmds on freeing mm: -1" messages.

The PA-RISC architecture preallocates one pmd with each pgd. This
preallocated pmd can never be freed - pmd_free does nothing when it is
called with this pmd. When the kernel attempts to free this preallocated
pmd, it decreases the count of allocated pmds. The result is that the
counter underflows and this error is reported.

This patch fixes the bug by introducing a macro pmd_preallocated and
making sure that the counter is not decremented when this preallocated pmd
is freed.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
 arch/parisc/include/asm/pgalloc.h |    2 ++
 mm/memory.c                       |    5 ++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

Index: linux-4.0-rc4/arch/parisc/include/asm/pgalloc.h
===================================================================
--- linux-4.0-rc4.orig/arch/parisc/include/asm/pgalloc.h	2015-03-18 15:31:10.000000000 +0100
+++ linux-4.0-rc4/arch/parisc/include/asm/pgalloc.h	2015-03-18 15:33:20.000000000 +0100
@@ -81,6 +81,8 @@ static inline void pmd_free(struct mm_st
 	free_pages((unsigned long)pmd, PMD_ORDER);
 }
 
+#define pmd_preallocated(pmd)	(pmd_flag(*(pmd)) & PxD_FLAG_ATTACHED)
+
 #else
 
 /* Two Level Page Table Support for pmd's */
Index: linux-4.0-rc4/mm/memory.c
===================================================================
--- linux-4.0-rc4.orig/mm/memory.c	2015-03-18 15:30:42.000000000 +0100
+++ linux-4.0-rc4/mm/memory.c	2015-03-18 15:32:33.000000000 +0100
@@ -427,8 +427,11 @@ static inline void free_pmd_range(struct
 
 	pmd = pmd_offset(pud, start);
 	pud_clear(pud);
+#ifdef pmd_preallocated
+	if (!pmd_preallocated(pmd))
+#endif
+		mm_dec_nr_pmds(tlb->mm);
 	pmd_free_tlb(tlb, pmd, start);
-	mm_dec_nr_pmds(tlb->mm);
 }
 
 static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
--
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Subject: Re: [PATCH] mm: don't count preallocated pmds
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On Wed, Mar 18, 2015 at 11:16:42AM -0400, Mikulas Patocka wrote:
> Hi
> 
> Here I'm sending a patch that fixes numerous "BUG: non-zero nr_pmds on 
> freeing mm: -1" errors on 64-bit PA-RISC kernel.
> 
> I think the patch posted here 
> http://www.spinics.net/lists/linux-parisc/msg05981.html is incorrect, it 
> wouldn't work if the affected address range is freed and allocated 
> multiple times.
> 	- 1. alloc pgd with built-in pmd, the count of pmds is 1
> 	- 2. free the range covered by the built-in pmd, the count of pmds 
> 		is 0, but the built-in pmd is still present

Hm. Okay. I didn't realize you have special case in pmd_clear() for these
pmds.

What about adding mm_inc_nr_pmds() in pmd_clear() for PxD_FLAG_ATTACHED
to compensate mm_dec_nr_pmds() in free_pmd_range()?

I don't like pmd_preallocated() in generic code. It's too specific to
parisc.

> 	- 3. alloc some memory in the range affected by the built-in pmd, 
> 		the count of pmds is still 0
> 	- 4. free the range covered by the built-in pmd, the counter 
> 		underflows to -1
> 
> Mikulas
> 
> 
> From: Mikulas Patocka <mpatocka@redhat.com>
> 
> The patch dc6c9a35b66b520cf67e05d8ca60ebecad3b0479 that counts pmds 
> allocated for a process introduced a bug on 64-bit PA-RISC kernels. There 
> are many "BUG: non-zero nr_pmds on freeing mm: -1" messages.
> 
> The PA-RISC architecture preallocates one pmd with each pgd. This
> preallocated pmd can never be freed - pmd_free does nothing when it is
> called with this pmd. When the kernel attempts to free this preallocated
> pmd, it decreases the count of allocated pmds. The result is that the
> counter underflows and this error is reported.
> 
> This patch fixes the bug by introducing a macro pmd_preallocated and
> making sure that the counter is not decremented when this preallocated pmd
> is freed.
> 
> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
> 
> ---
>  arch/parisc/include/asm/pgalloc.h |    2 ++
>  mm/memory.c                       |    5 ++++-
>  2 files changed, 6 insertions(+), 1 deletion(-)
> 
> Index: linux-4.0-rc4/arch/parisc/include/asm/pgalloc.h
> ===================================================================
> --- linux-4.0-rc4.orig/arch/parisc/include/asm/pgalloc.h	2015-03-18 15:31:10.000000000 +0100
> +++ linux-4.0-rc4/arch/parisc/include/asm/pgalloc.h	2015-03-18 15:33:20.000000000 +0100
> @@ -81,6 +81,8 @@ static inline void pmd_free(struct mm_st
>  	free_pages((unsigned long)pmd, PMD_ORDER);
>  }
>  
> +#define pmd_preallocated(pmd)	(pmd_flag(*(pmd)) & PxD_FLAG_ATTACHED)
> +
>  #else
>  
>  /* Two Level Page Table Support for pmd's */
> Index: linux-4.0-rc4/mm/memory.c
> ===================================================================
> --- linux-4.0-rc4.orig/mm/memory.c	2015-03-18 15:30:42.000000000 +0100
> +++ linux-4.0-rc4/mm/memory.c	2015-03-18 15:32:33.000000000 +0100
> @@ -427,8 +427,11 @@ static inline void free_pmd_range(struct
>  
>  	pmd = pmd_offset(pud, start);
>  	pud_clear(pud);
> +#ifdef pmd_preallocated
> +	if (!pmd_preallocated(pmd))
> +#endif
> +		mm_dec_nr_pmds(tlb->mm);
>  	pmd_free_tlb(tlb, pmd, start);
> -	mm_dec_nr_pmds(tlb->mm);
>  }
>  
>  static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
> 
> --
> To unsubscribe, send a message with 'unsubscribe linux-mm' in
> the body to majordomo@kvack.org.  For more info on Linux MM,
> see: http://www.linux-mm.org/ .
> Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

-- 
 Kirill A. Shutemov

--
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On Wed, 18 Mar 2015, Kirill A. Shutemov wrote:

> On Wed, Mar 18, 2015 at 11:16:42AM -0400, Mikulas Patocka wrote:
> > Hi
> > 
> > Here I'm sending a patch that fixes numerous "BUG: non-zero nr_pmds on 
> > freeing mm: -1" errors on 64-bit PA-RISC kernel.
> > 
> > I think the patch posted here 
> > http://www.spinics.net/lists/linux-parisc/msg05981.html is incorrect, it 
> > wouldn't work if the affected address range is freed and allocated 
> > multiple times.
> > 	- 1. alloc pgd with built-in pmd, the count of pmds is 1
> > 	- 2. free the range covered by the built-in pmd, the count of pmds 
> > 		is 0, but the built-in pmd is still present
> 
> Hm. Okay. I didn't realize you have special case in pmd_clear() for these
> pmds.
> 
> What about adding mm_inc_nr_pmds() in pmd_clear() for PxD_FLAG_ATTACHED
> to compensate mm_dec_nr_pmds() in free_pmd_range()?

pmd_clear clears one entry in the pmd, it wouldn't work. You need to add 
it to pgd_clear. That clears the pointer to the pmd (and does nothing if 
it is asked to clear the pointer to the preallocated pmd). But pgd_clear 
doesn't receive the pointer to mm.

> I don't like pmd_preallocated() in generic code. It's too specific to
> parisc.

The question is if it is better to use pmd_preallocated, or pass the 
pointer to the mm to pgd_clear (that would affect all architectures).

Mikulas

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On Wed, Mar 18, 2015 at 12:25:11PM -0400, Mikulas Patocka wrote:
> 
> 
> On Wed, 18 Mar 2015, Kirill A. Shutemov wrote:
> 
> > On Wed, Mar 18, 2015 at 11:16:42AM -0400, Mikulas Patocka wrote:
> > > Hi
> > > 
> > > Here I'm sending a patch that fixes numerous "BUG: non-zero nr_pmds on 
> > > freeing mm: -1" errors on 64-bit PA-RISC kernel.
> > > 
> > > I think the patch posted here 
> > > http://www.spinics.net/lists/linux-parisc/msg05981.html is incorrect, it 
> > > wouldn't work if the affected address range is freed and allocated 
> > > multiple times.
> > > 	- 1. alloc pgd with built-in pmd, the count of pmds is 1
> > > 	- 2. free the range covered by the built-in pmd, the count of pmds 
> > > 		is 0, but the built-in pmd is still present
> > 
> > Hm. Okay. I didn't realize you have special case in pmd_clear() for these
> > pmds.
> > 
> > What about adding mm_inc_nr_pmds() in pmd_clear() for PxD_FLAG_ATTACHED
> > to compensate mm_dec_nr_pmds() in free_pmd_range()?
> 
> pmd_clear clears one entry in the pmd, it wouldn't work. You need to add 
> it to pgd_clear. That clears the pointer to the pmd (and does nothing if 
> it is asked to clear the pointer to the preallocated pmd). But pgd_clear 
> doesn't receive the pointer to mm.

I meant pmd_free(), not pmd_clear(). This should work fine.

> 
> > I don't like pmd_preallocated() in generic code. It's too specific to
> > parisc.
> 
> The question is if it is better to use pmd_preallocated, or pass the 
> pointer to the mm to pgd_clear (that would affect all architectures).
> 
> Mikulas

-- 
 Kirill A. Shutemov

--
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On Wed, 18 Mar 2015, Kirill A. Shutemov wrote:

> On Wed, Mar 18, 2015 at 12:25:11PM -0400, Mikulas Patocka wrote:
> > 
> > 
> > On Wed, 18 Mar 2015, Kirill A. Shutemov wrote:
> > 
> > > On Wed, Mar 18, 2015 at 11:16:42AM -0400, Mikulas Patocka wrote:
> > > > Hi
> > > > 
> > > > Here I'm sending a patch that fixes numerous "BUG: non-zero nr_pmds on 
> > > > freeing mm: -1" errors on 64-bit PA-RISC kernel.
> > > > 
> > > > I think the patch posted here 
> > > > http://www.spinics.net/lists/linux-parisc/msg05981.html is incorrect, it 
> > > > wouldn't work if the affected address range is freed and allocated 
> > > > multiple times.
> > > > 	- 1. alloc pgd with built-in pmd, the count of pmds is 1
> > > > 	- 2. free the range covered by the built-in pmd, the count of pmds 
> > > > 		is 0, but the built-in pmd is still present
> > > 
> > > Hm. Okay. I didn't realize you have special case in pmd_clear() for these
> > > pmds.
> > > 
> > > What about adding mm_inc_nr_pmds() in pmd_clear() for PxD_FLAG_ATTACHED
> > > to compensate mm_dec_nr_pmds() in free_pmd_range()?
> > 
> > pmd_clear clears one entry in the pmd, it wouldn't work. You need to add 
> > it to pgd_clear. That clears the pointer to the pmd (and does nothing if 
> > it is asked to clear the pointer to the preallocated pmd). But pgd_clear 
> > doesn't receive the pointer to mm.
> 
> I meant pmd_free(), not pmd_clear(). This should work fine.

OK, here is the updated patch.


From: Mikulas Patocka <mpatocka@redhat.com>

The patch dc6c9a35b66b520cf67e05d8ca60ebecad3b0479 that counts pmds
allocated for a process introduced a bug on 64-bit PA-RISC kernels.

The PA-RISC architecture preallocates one pmd with each pgd. This
preallocated pmd can never be freed - pmd_free does nothing when it is
called with this pmd. When the kernel attempts to free this preallocated
pmd, it decreases the count of allocated pmds. The result is that the
counter underflows and this error is reported.

This patch fixes the bug by artifically incrementing the counter in
pmd_free when the kernel tries to free the preallocated pmd.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
 arch/parisc/include/asm/pgalloc.h |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

Index: linux-4.0-rc4/arch/parisc/include/asm/pgalloc.h
===================================================================
--- linux-4.0-rc4.orig/arch/parisc/include/asm/pgalloc.h	2015-03-18 18:02:16.000000000 +0100
+++ linux-4.0-rc4/arch/parisc/include/asm/pgalloc.h	2015-03-18 18:03:26.000000000 +0100
@@ -74,8 +74,13 @@ static inline void pmd_free(struct mm_st
 {
 #ifdef CONFIG_64BIT
 	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
-		/* This is the permanent pmd attached to the pgd;
-		 * cannot free it */
+		/*
+		 * This is the permanent pmd attached to the pgd;
+		 * cannot free it.
+		 * Increment the counter to compensate for the decrement
+		 * done by generic mm code.
+		 */
+		mm_inc_nr_pmds(mm);
 		return;
 #endif
 	free_pages((unsigned long)pmd, PMD_ORDER);
--
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On Wed, Mar 18, 2015 at 01:42:38PM -0400, Mikulas Patocka wrote:
> 
> 
> On Wed, 18 Mar 2015, Kirill A. Shutemov wrote:
> 
> > On Wed, Mar 18, 2015 at 12:25:11PM -0400, Mikulas Patocka wrote:
> > > 
> > > 
> > > On Wed, 18 Mar 2015, Kirill A. Shutemov wrote:
> > > 
> > > > On Wed, Mar 18, 2015 at 11:16:42AM -0400, Mikulas Patocka wrote:
> > > > > Hi
> > > > > 
> > > > > Here I'm sending a patch that fixes numerous "BUG: non-zero nr_pmds on 
> > > > > freeing mm: -1" errors on 64-bit PA-RISC kernel.
> > > > > 
> > > > > I think the patch posted here 
> > > > > http://www.spinics.net/lists/linux-parisc/msg05981.html is incorrect, it 
> > > > > wouldn't work if the affected address range is freed and allocated 
> > > > > multiple times.
> > > > > 	- 1. alloc pgd with built-in pmd, the count of pmds is 1
> > > > > 	- 2. free the range covered by the built-in pmd, the count of pmds 
> > > > > 		is 0, but the built-in pmd is still present
> > > > 
> > > > Hm. Okay. I didn't realize you have special case in pmd_clear() for these
> > > > pmds.
> > > > 
> > > > What about adding mm_inc_nr_pmds() in pmd_clear() for PxD_FLAG_ATTACHED
> > > > to compensate mm_dec_nr_pmds() in free_pmd_range()?
> > > 
> > > pmd_clear clears one entry in the pmd, it wouldn't work. You need to add 
> > > it to pgd_clear. That clears the pointer to the pmd (and does nothing if 
> > > it is asked to clear the pointer to the preallocated pmd). But pgd_clear 
> > > doesn't receive the pointer to mm.
> > 
> > I meant pmd_free(), not pmd_clear(). This should work fine.
> 
> OK, here is the updated patch.
> 
> 
> From: Mikulas Patocka <mpatocka@redhat.com>
> 
> The patch dc6c9a35b66b520cf67e05d8ca60ebecad3b0479 that counts pmds
> allocated for a process introduced a bug on 64-bit PA-RISC kernels.
> 
> The PA-RISC architecture preallocates one pmd with each pgd. This
> preallocated pmd can never be freed - pmd_free does nothing when it is
> called with this pmd. When the kernel attempts to free this preallocated
> pmd, it decreases the count of allocated pmds. The result is that the
> counter underflows and this error is reported.
> 
> This patch fixes the bug by artifically incrementing the counter in
> pmd_free when the kernel tries to free the preallocated pmd.
> 
> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>

> ---
>  arch/parisc/include/asm/pgalloc.h |    9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
> 
> Index: linux-4.0-rc4/arch/parisc/include/asm/pgalloc.h
> ===================================================================
> --- linux-4.0-rc4.orig/arch/parisc/include/asm/pgalloc.h	2015-03-18 18:02:16.000000000 +0100
> +++ linux-4.0-rc4/arch/parisc/include/asm/pgalloc.h	2015-03-18 18:03:26.000000000 +0100
> @@ -74,8 +74,13 @@ static inline void pmd_free(struct mm_st
>  {
>  #ifdef CONFIG_64BIT
>  	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
> -		/* This is the permanent pmd attached to the pgd;
> -		 * cannot free it */
> +		/*
> +		 * This is the permanent pmd attached to the pgd;
> +		 * cannot free it.
> +		 * Increment the counter to compensate for the decrement
> +		 * done by generic mm code.
> +		 */
> +		mm_inc_nr_pmds(mm);
>  		return;
>  #endif
>  	free_pages((unsigned long)pmd, PMD_ORDER);
> 
> --
> To unsubscribe, send a message with 'unsubscribe linux-mm' in
> the body to majordomo@kvack.org.  For more info on Linux MM,
> see: http://www.linux-mm.org/ .
> Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

-- 
 Kirill A. Shutemov

--
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From - Thu Nov 08 21:37:24 2018
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From: Matthew Wilcox <matthew.r.wilcox@intel.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Eliminate sg_virt_addr() and private scatterlist.h
Date: Fri, 20 Mar 2015 13:37:59 -0400
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From: Matthew Wilcox <willy@linux.intel.com>

The only reason to keep parisc's private asm/scatterlist.h was that it
had the macro sg_virt_addr().  Convert all callers to use something else
(sometimes just sg->offset was enough, others should use sg_virt()), and
we can just use the asm-generic scatterlist.h instead.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
---

I haven't even compile-tested these changes ... I do have some PA-RISC
equipment, but it hasn't been turned on in seven years.

 arch/parisc/include/asm/Kbuild        |  1 +
 arch/parisc/include/asm/cacheflush.h  |  2 +-
 arch/parisc/include/asm/scatterlist.h | 10 ----------
 arch/parisc/kernel/pci-dma.c          |  8 ++++----
 drivers/parisc/ccio-dma.c             |  6 +++---
 drivers/parisc/iommu-helpers.h        | 30 ++++++++++++++++--------------
 drivers/parisc/sba_iommu.c            |  7 +++----
 7 files changed, 28 insertions(+), 36 deletions(-)
 delete mode 100644 arch/parisc/include/asm/scatterlist.h

diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 8686237..a5f0375 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -20,6 +20,7 @@ generic-y += param.h
 generic-y += percpu.h
 generic-y += poll.h
 generic-y += preempt.h
+generic-y += scatterlist.h
 generic-y += segment.h
 generic-y += topology.h
 generic-y += trace_clock.h
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index de65f66..873fd4a 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -44,7 +44,7 @@ static inline void flush_kernel_dcache_page(struct page *page)
 }
 
 #define flush_kernel_dcache_range(start,size) \
-	flush_kernel_dcache_range_asm((start), (start)+(size));
+	flush_kernel_dcache_range_asm((unsigned long)(start), (start)+(size));
 /* vmap range flushes and invalidates.  Architecturally, we don't need
  * the invalidate, because the CPU should refuse to speculate once an
  * area has been flushed, so invalidate is left empty */
diff --git a/arch/parisc/include/asm/scatterlist.h b/arch/parisc/include/asm/scatterlist.h
deleted file mode 100644
index 8bf1f0d..0000000
--- a/arch/parisc/include/asm/scatterlist.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _ASM_PARISC_SCATTERLIST_H
-#define _ASM_PARISC_SCATTERLIST_H
-
-#include <asm/page.h>
-#include <asm/types.h>
-#include <asm-generic/scatterlist.h>
-
-#define sg_virt_addr(sg) ((unsigned long)sg_virt(sg))
-
-#endif /* _ASM_PARISC_SCATTERLIST_H */
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index d87d1c4..f428878 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -482,7 +482,7 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int n
 	BUG_ON(direction == DMA_NONE);
 
 	for (i = 0; i < nents; i++, sglist++ ) {
-		unsigned long vaddr = sg_virt_addr(sglist);
+		unsigned long vaddr = (unsigned long)sg_virt(sglist);
 		sg_dma_address(sglist) = (dma_addr_t) virt_to_phys(vaddr);
 		sg_dma_len(sglist) = sglist->length;
 		flush_kernel_dcache_range(vaddr, sglist->length);
@@ -502,7 +502,7 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, in
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
 	for (i = 0; i < nents; i++, sglist++ )
-		flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
+		flush_kernel_dcache_range(sg_virt(sglist), sglist->length);
 	return;
 }
 
@@ -527,7 +527,7 @@ static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sgl
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
 	for (i = 0; i < nents; i++, sglist++ )
-		flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
+		flush_kernel_dcache_range(sg_virt(sglist), sglist->length);
 }
 
 static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
@@ -537,7 +537,7 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
 	for (i = 0; i < nents; i++, sglist++ )
-		flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
+		flush_kernel_dcache_range(sg_virt(sglist), sglist->length);
 }
 
 struct hppa_dma_ops pcxl_dma_ops = {
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 8b490d7..5347847 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -916,7 +916,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	/* Fast path single entry scatterlists. */
 	if (nents == 1) {
 		sg_dma_address(sglist) = ccio_map_single(dev,
-				(void *)sg_virt_addr(sglist), sglist->length,
+				sg_virt(sglist), sglist->length,
 				direction);
 		sg_dma_len(sglist) = sglist->length;
 		return 1;
@@ -983,8 +983,8 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
 
-	DBG_RUN_SG("%s() START %d entries,  %08lx,%x\n",
-		__func__, nents, sg_virt_addr(sglist), sglist->length);
+	DBG_RUN_SG("%s() START %d entries, %p,%x\n",
+		__func__, nents, sg_virt(sglist), sglist->length);
 
 #ifdef CCIO_COLLECT_STATS
 	ioc->usg_calls++;
diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h
index 8c33491..9a55002 100644
--- a/drivers/parisc/iommu-helpers.h
+++ b/drivers/parisc/iommu-helpers.h
@@ -30,9 +30,9 @@ iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents,
 		unsigned long vaddr;
 		long size;
 
-		DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
+		DBG_RUN_SG(" %d : %08lx/%05x %p/%05x\n", nents,
 			   (unsigned long)sg_dma_address(startsg), cnt,
-			   sg_virt_addr(startsg), startsg->length
+			   sg_virt(startsg), startsg->length
 		);
 
 
@@ -66,7 +66,7 @@ iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents,
 		
 		BUG_ON(pdirp == NULL);
 		
-		vaddr = sg_virt_addr(startsg);
+		vaddr = (unsigned long)sg_virt(startsg);
 		sg_dma_len(dma_sg) += startsg->length;
 		size = startsg->length + dma_offset;
 		dma_offset = 0;
@@ -113,7 +113,7 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
 		*/
 		contig_sg = startsg;
 		dma_len = startsg->length;
-		dma_offset = sg_virt_addr(startsg) & ~IOVP_MASK;
+		dma_offset = startsg->offset;
 
 		/* PARANOID: clear entries */
 		sg_dma_address(startsg) = 0;
@@ -124,14 +124,13 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
 		** it's always looking one "ahead".
 		*/
 		while(--nents > 0) {
-			unsigned long prevstartsg_end, startsg_end;
+			unsigned long prev_end, sg_start;
 
-			prevstartsg_end = sg_virt_addr(startsg) +
-				startsg->length;
+			prev_end = (unsigned long)sg_virt(startsg) +
+							startsg->length;
 
 			startsg++;
-			startsg_end = sg_virt_addr(startsg) + 
-				startsg->length;
+			sg_start = (unsigned long)sg_virt(startsg);
 
 			/* PARANOID: clear entries */
 			sg_dma_address(startsg) = 0;
@@ -150,12 +149,15 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
 				break;
 
 			/*
-			** Next see if we can append the next chunk (i.e.
-			** it must end on one page and begin on another
-			*/
-			if (unlikely(((prevstartsg_end | sg_virt_addr(startsg)) & ~PAGE_MASK) != 0))
+			 * Next see if we can append the next chunk (i.e.
+			 * it must end on one page and begin on another, or
+			 * it must start on the same address as the previous
+			 * entry ended.
+			 */
+			if (unlikely((prev_end != sg_start) ||
+			    ((prev_end | sg_start) & ~PAGE_MASK)))
 				break;
-			
+
 			dma_len += startsg->length;
 		}
 
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 1ff1b67..e26ed2e 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -278,7 +278,7 @@ sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents)
 				nents,
 				(unsigned long) sg_dma_address(startsg),
 				sg_dma_len(startsg),
-				sg_virt_addr(startsg), startsg->length);
+				sg_virt(startsg), startsg->length);
 		startsg++;
 	}
 }
@@ -945,8 +945,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 
 	/* Fast path single entry scatterlists. */
 	if (nents == 1) {
-		sg_dma_address(sglist) = sba_map_single(dev,
-						(void *)sg_virt_addr(sglist),
+		sg_dma_address(sglist) = sba_map_single(dev, sg_virt(sglist),
 						sglist->length, direction);
 		sg_dma_len(sglist)     = sglist->length;
 		return 1;
@@ -1025,7 +1024,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 #endif
 
 	DBG_RUN_SG("%s() START %d entries,  %p,%x\n",
-		__func__, nents, sg_virt_addr(sglist), sglist->length);
+		__func__, nents, sg_virt(sglist), sglist->length);
 
 	ioc = GET_IOC(dev);
 
-- 
2.1.4

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On 2015-03-20, at 1:37 PM, Matthew Wilcox wrote:

> From: Matthew Wilcox <willy@linux.intel.com>
> 
> The only reason to keep parisc's private asm/scatterlist.h was that it
> had the macro sg_virt_addr().  Convert all callers to use something else
> (sometimes just sg->offset was enough, others should use sg_virt()), and
> we can just use the asm-generic scatterlist.h instead.
> 
> Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
> ---
> 
> I haven't even compile-tested these changes ... I do have some PA-RISC
> equipment, but it hasn't been turned on in seven years.

Tested-by: dave.anglin@bell.net

--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:37:24 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Eliminate sg_virt_addr() and private scatterlist.h
Date: Sat, 21 Mar 2015 18:38:24 -0400
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Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>,
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	Helge Deller <deller@gmx.de>
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On 2015-03-21, at 11:04 AM, John David Anglin wrote:

> On 2015-03-20, at 1:37 PM, Matthew Wilcox wrote:
>=20
>> From: Matthew Wilcox <willy@linux.intel.com>
>>=20
>> The only reason to keep parisc's private asm/scatterlist.h was that =
it
>> had the macro sg_virt_addr().  Convert all callers to use something =
else
>> (sometimes just sg->offset was enough, others should use sg_virt()), =
and
>> we can just use the asm-generic scatterlist.h instead.
>>=20
>> Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
>> ---
>>=20
>> I haven't even compile-tested these changes ... I do have some =
PA-RISC
>> equipment, but it hasn't been turned on in seven years.
>=20
> Tested-by: dave.anglin@bell.net

Possibly when I sent the above, it was a little early to say the change =
was "tested".
See attached.  Console log is somewhat truncated.

Dave
--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-3--153777285
Content-Disposition: attachment; filename="oom.txt"
Content-Type: text/plain; name="oom.txt"
Content-Transfer-Encoding: quoted-printable

[10457]  1000 10457     1235      314      19       0      352           =
  0 make
[11456]  1000 11456     1229      298      24       0      102           =
  0 bash
[11465]  1000 11465     1241      290      11       0      114           =
  0 bash
[11483]  1000 11483     2830      314      22       0     1914           =
  0 make
[ 1790]  1000  1790     1218      282      24       0       83           =
  0 bash
[ 1791]  1000  1791     2805      314      22       0     1897           =
  0 make
[ 1859]  1000  1859     1203      282      24       0       68           =
  0 bash
[ 1860]  1000  1860     1208      306      11       0       73           =
  0 bash
[ 1870]  1000  1870    31806      408      51       0     7240           =
  0 expect
[16044]   105 16044     1806      160      32       0      121           =
  0 pickup
[ 1530]  1000  1530      837      282       8       0       54           =
  0 xgcc
[ 1537]  1000  1537      764       16       8       0       36           =
  0 collect2
[ 1538]  1000  1538     1239      314      10       0      444           =
  0 ld.bfd.real
[ 1540]  1000  1540      803      298       8       0       39           =
  0 lto-wrapper
[ 1543]  1000  1543      838      282       8       0       47           =
  0 xgcc
Out of memory: Kill process 2705 (sanlock) score 2 or sacrifice child
Killed process 2705 (sanlock) total-vm:44176kB, anon-rss:37368kB, =
file-rss:2484kB
kthreadd invoked oom-killer: gfp_mask=3D0x2000d0, order=3D2, =
oom_score_adj=3D0
CPU: 2 PID: 2 Comm: kthreadd Not tainted 4.0.0-rc4+ #1
Backtrace:
 [<00000000401588b8>] show_stack+0x20/0x38
 [<000000004037e804>] dump_stack+0x9c/0x110
 [<00000000402142b4>] dump_header.isra.12+0xb4/0x218
 [<0000000040214e44>] oom_kill_process+0x3f4/0x6d8
 [<00000000402153cc>] __out_of_memory+0x2a4/0x488
 [<0000000040215980>] out_of_memory+0x98/0xe8
 [<000000004021b55c>] __alloc_pages_nodemask+0x75c/0x7f0
 [<000000004021b8d4>] alloc_kmem_pages_node+0x5c/0x70
 [<000000004017dd34>] copy_process.part.62+0x184/0x1c18
 [<0000000040144020>] end_fault_vector+0x20/0x28
 [<00000000402136d8>] mempool_alloc_slab+0x28/0x40
 [<0000000040213974>] mempool_alloc+0xa4/0x208
 [<00000000142d47b0>] scsi_sg_alloc+0x50/0x150 [scsi_mod]
 [<0000000040394178>] __sg_alloc_table+0xb0/0x1e0

Mem-info:
Normal per-cpu:
CPU    0: hi:  186, btch:  31 usd:  25
CPU    1: hi:  186, btch:  31 usd: 127
CPU    2: hi:  186, btch:  31 usd:   0
CPU    3: hi:  186, btch:  31 usd:  13
Normal per-cpu:
CPU    0: hi:  186, btch:  31 usd:   0
CPU    1: hi:  186, btch:  31 usd:   0
CPU    2: hi:  186, btch:  31 usd:   0
CPU    3: hi:  186, btch:  31 usd:   0
Normal per-cpu:
CPU    0: hi:  186, btch:  31 usd:   0
CPU    1: hi:  186, btch:  31 usd:   0
CPU    2: hi:  186, btch:  31 usd:   0
CPU    3: hi:  186, btch:  31 usd:   0
active_anon:0 inactive_anon:8 isolated_anon:0
 active_file:56 inactive_file:60 isolated_file:0
 unevictable:10016 dirty:0 writeback:0 unstable:0
 free:77039 slab_reclaimable:171489 slab_unreclaimable:21760
 mapped:729 shmem:0 pagetables:1431 bounce:0
 free_cma:0
Normal free:47364kB min:1384kB low:1728kB high:2076kB active_anon:0kB =
inactive_anon:0kB active_file:224kB inactive_file:240kB =
unevictable:40064kB isolated(anon):0kB isolated(file):0kB =
present:1048576kB managed:995888kB mlocked:40064kB dirty:0kB =
writeback:0kB mapped:2916kB shmem:0kB slab_reclaimable:52584kB =
slab_unreclaimable:19116kB kernel_stack:2672kB pagetables:5704kB =
unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 =
all_unreclaimable? no
lowmem_reserve[]: 0 0
Normal free:132376kB min:5760kB low:7200kB high:8640kB active_anon:0kB =
inactive_anon:52kB active_file:0kB inactive_file:0kB unevictable:0kB =
isolated(anon):0kB isolated(file):0kB present:4192256kB =
managed:4134812kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB =
shmem:0kB slab_reclaimable:435152kB slab_unreclaimable:46872kB =
kernel_stack:32kB pagetables:20kB unstable:0kB bounce:0kB free_cma:0kB =
writeback_tmp:0kB pages_scanned:416 all_unreclaimable? yes
lowmem_reserve[]: 0 0
Normal free:128416kB min:4324kB low:5404kB high:6484kB active_anon:0kB =
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB =
isolated(anon):0kB isolated(file):0kB present:3145728kB =
managed:3102620kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB =
shmem:0kB slab_reclaimable:198220kB slab_unreclaimable:21052kB =
kernel_stack:384kB pagetables:0kB unstable:0kB bounce:0kB free_cma:0kB =
writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
lowmem_reserve[]: 0 0
Normal: 11079*4kB (UEM) 467*8kB (UEM) 9*16kB (UMR) 1*32kB (R) 1*64kB (R) =
1*128kB (R) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =3D 48420kB
Normal: 32226*4kB (UEM) 434*8kB (UM) 0*16kB 0*32kB 0*64kB 0*128kB =
0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =3D 132376kB
Normal: 27604*4kB (UEM) 2116*8kB (UEM) 67*16kB (M) 0*32kB 0*64kB 0*128kB =
0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =3D 128416kB
725 total pagecache pages
34 pages in swap cache
Swap cache stats: add 91383, delete 91349, find 928197/954032
Free swap  =3D 7732896kB
Total swap =3D 7815616kB
2096640 pages of RAM
10777 reserved pages
Zone list for zone 0 on node 0: [0/Normal] [0/Normal] [0/Normal]=20
Zone list for zone 1 on node 0: [0/Normal] [0/Normal] [0/Normal]=20
Zone list for zone 0 on node 1: [0/Normal] [0/Normal] [0/Normal]=20
Zone list for zone 1 on node 1: [0/Normal] [0/Normal] [0/Normal]=20
Zone list for zone 0 on node 2: [0/Normal] [0/Normal] [0/Normal]=20
Zone list for zone 1 on node 2: [0/Normal] [0/Normal] [0/Normal]=20
[ pid ]   uid  tgid total_vm      rss nr_ptes nr_pmds swapents =
oom_score_adj name
[ 1114]     0  1114     2700      419      36       0      207         =
-1000 udevd
[ 2271]     0  2271     1040      393      33       0       92           =
  0 rpcbind
[ 2315]   102  2315     1082      399      32       0      133           =
  0 rpc.statd
[ 2348]     0  2348      698      244      16       0       48           =
  0 rpc.idmapd
[ 2586]     0  2586      499      346       6       0       38           =
  0 minissdpd
[ 2607]     0  2607      855      235      15       0       43           =
  0 uuidd
[ 2630]     0  2630      751      384      22       0       75           =
  0 cgmanager
[ 2637]     0  2637     7971      148      34       0      205           =
  0 rsyslogd
[ 2725]     0  2725      750      345      22       0       63           =
  0 cgproxy
[ 2754]     0  2754      621      346      13       0       46           =
  0 atd
[ 2815]     0  2815     1043      346      13       0       52           =
  0 irqbalance
[ 2830]     0  2830    20108      187      23       0      126           =
  0 nscd
[ 2841]     0  2841    24952      173      58       0     2013           =
  0 lwresd
[ 2872]     0  2872      611      354      11       0       29           =
  0 inetd
[ 2916]     0  2916     2519      371      66       0      216           =
  0 cupsd
[ 2934]   104  2934     1239      361      32       0      113           =
  0 dbus-daemon
[ 3006]   120  3006    47532      433      82       0      325          =
-900 postgres
[ 3009]   120  3009    47532      194      55       0      336           =
  0 postgres
[ 3011]   120  3011    47532      213      56       0      337           =
  0 postgres
[ 3012]   120  3012    47532      326      54       0      348           =
  0 postgres
[ 3013]   120  3013    47606      391      59       0      381           =
  0 postgres
[ 3015]   120  3015    11562      391      52       0      336           =
  0 postgres
[ 3042]   106  3042     1499      399      30       0      116           =
  0 ntpd
[ 3130]   118  3130      883      336      27       0       75           =
  0 avahi-daemon
[ 3138]     0  3138      733      345      23       0       53           =
  0 cron
[ 3139]   118  3139      851      219      22       0       61           =
  0 avahi-daemon
[ 3165]     0  3165     1375      357      19       0       93           =
  0 ofonod
[ 3240]     0  3240     1851      322      34       0      152         =
-1000 sshd
[ 3429]     0  3429     1853      167      32       0      122           =
  0 master
[ 3436]   105  3436     1817      148      31       0      118           =
  0 qmgr
[ 3455]     0  3455      569      346      14       0       34           =
  0 getty
[ 3464]     0  3464      851      400      27       0       59           =
  0 systemd-logind
[ 3873]  1000  3873      521       96       6       0       26           =
  0 build
[10439]  1000 10439     1231      314      19       0      336           =
  0 make
[10445]  1000 10445     1208      298      24       0       73           =
  0 bash
[10457]  1000 10457     1235      314      19       0      352           =
  0 make
[11456]  1000 11456     1229      298      24       0      102           =
  0 bash
[11465]  1000 11465     1241      290      11       0      114           =
  0 bash
[11483]  1000 11483     2830      314      22       0     1914           =
  0 make
[ 1790]  1000  1790     1218      282      24       0       83           =
  0 bash
[ 1791]  1000  1791     2805      314      22       0     1897           =
  0 make
[ 1859]  1000  1859     1203      282      24       0       68           =
  0 bash
[ 1860]  1000  1860     1208      306      11       0       73           =
  0 bash
[ 1870]  1000  1870    31806      408      51       0     7240           =
  0 expect
[16044]   105 16044     1806      160      32       0      121           =
  0 pickup
[ 1530]  1000  1530      837      282       8       0       54           =
  0 xgcc
[ 1537]  1000  1537      764       16       8       0       36           =
  0 collect2
[ 1538]  1000  1538     1239      314      10       0      444           =
  0 ld.bfd.real
[ 1540]  1000  1540      803      298       8       0       39           =
  0 lto-wrapper
[ 1543]  1000  1543      838      282       8       0       47           =
  0 xgcc
[ 1544]  1000  1544      838      247       6       0       47           =
  0 xgcc
Out of memory: Kill process 1870 (expect) score 1 or sacrifice child
Killed process 1530 (xgcc) total-vm:3348kB, anon-rss:0kB, =
file-rss:1128kB
INFO: task kswapd1:285 blocked for more than 120 seconds.
      Not tainted 4.0.0-rc4+ #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this =
message.
kswapd1         D 00000000401440c0     0   285      2 0x00000000
Backtrace:
 [<000000004014e4e8>] __schedule+0x248/0x5d0
 [<000000004014e8b8>] schedule+0x48/0xc8
 [<000000001d083f40>] _xfs_log_force_lsn+0x230/0x440 [xfs]
 [<000000001d08417c>] xfs_log_force_lsn+0x2c/0x90 [xfs]
 [<000000001d068614>] __xfs_iunpin_wait+0xb4/0x1f0 [xfs]
 [<000000001d06d78c>] xfs_iunpin_wait+0x2c/0x190 [xfs]
 [<000000001d05d7fc>] xfs_reclaim_inode+0x9c/0x550 [xfs]
 [<000000001d05de68>] xfs_reclaim_inodes_ag+0x1b8/0x520 [xfs]
 [<000000001d05ee80>] xfs_reclaim_inodes_nr+0x60/0xb0 [xfs]
 [<000000001d076004>] xfs_fs_free_cached_objects+0x24/0x58 [xfs]
 [<000000004026a79c>] super_cache_scan+0x2fc/0x308
 [<0000000040225f54>] shrink_slab.part.48.constprop.57+0x31c/0x3c8
 [<000000004022927c>] shrink_zone+0xe4/0xe8
 [<0000000040229cf4>] kswapd+0x614/0xae0
 [<00000000401a4824>] kthread+0x144/0x178
 [<0000000040144020>] end_fault_vector+0x20/0x28

INFO: task kswapd2:286 blocked for more than 120 seconds.
      Not tainted 4.0.0-rc4+ #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this =
message.
kswapd2         D 00000000401440c0     0   286      2 0x00000000
Backtrace:
 [<000000004014e4e8>] __schedule+0x248/0x5d0
 [<000000004014e8b8>] schedule+0x48/0xc8
 [<000000004014ed58>] schedule_preempt_disabled+0x20/0x38
 [<0000000040151b70>] __mutex_lock_slowpath+0x180/0x3f0
 [<0000000040151e04>] mutex_lock+0x24/0x48
 [<000000001d05df60>] xfs_reclaim_inodes_ag+0x2b0/0x520 [xfs]
 [<000000001d05ee80>] xfs_reclaim_inodes_nr+0x60/0xb0 [xfs]
 [<000000001d076004>] xfs_fs_free_cached_objects+0x24/0x58 [xfs]
 [<000000004026a79c>] super_cache_scan+0x2fc/0x308
 [<0000000040225f54>] shrink_slab.part.48.constprop.57+0x31c/0x3c8
 [<000000004022927c>] shrink_zone+0xe4/0xe8
 [<0000000040229cf4>] kswapd+0x614/0xae0
 [<00000000401a4824>] kthread+0x144/0x178
 [<0000000040144020>] end_fault_vector+0x20/0x28
 [<00000000402136d8>] mempool_alloc_slab+0x28/0x40
 [<0000000040213974>] mempool_alloc+0xa4/0x208
INFO: task postgres:3006 blocked for more than 120 seconds.
      Not tainted 4.0.0-rc4+ #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this =
message.
postgres        D 00000000401440c0     0  3006      1 0x00000010
Backtrace:
 [<000000004014e4e8>] __schedule+0x248/0x5d0
 [<000000004014e8b8>] schedule+0x48/0xc8
 [<000000004014ed58>] schedule_preempt_disabled+0x20/0x38
 [<0000000040151b70>] __mutex_lock_slowpath+0x180/0x3f0
 [<0000000040151e04>] mutex_lock+0x24/0x48
 [<000000001d05df60>] xfs_reclaim_inodes_ag+0x2b0/0x520 [xfs]
 [<000000001d05ee80>] xfs_reclaim_inodes_nr+0x60/0xb0 [xfs]
 [<000000001d076004>] xfs_fs_free_cached_objects+0x24/0x58 [xfs]
 [<000000004026a79c>] super_cache_scan+0x2fc/0x308
 [<0000000040225f54>] shrink_slab.part.48.constprop.57+0x31c/0x3c8
 [<000000004022927c>] shrink_zone+0xe4/0xe8
 [<0000000040229570>] try_to_free_pages+0x2f0/0x460
 [<000000004021b1b4>] __alloc_pages_nodemask+0x3b4/0x7f0
 [<000000004021b8d4>] alloc_kmem_pages_node+0x5c/0x70
 [<000000004017dd34>] copy_process.part.62+0x184/0x1c18
 [<0000000040192474>] sigprocmask+0x74/0xb0

INFO: task cron:3138 blocked for more than 120 seconds.
      Not tainted 4.0.0-rc4+ #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this =
message.
cron            D 00000000401440c0     0  3138      1 0x00000010
Backtrace:
 [<000000004014e4e8>] __schedule+0x248/0x5d0
 [<000000004014e8b8>] schedule+0x48/0xc8
 [<000000004014ed58>] schedule_preempt_disabled+0x20/0x38
 [<0000000040151b70>] __mutex_lock_slowpath+0x180/0x3f0
 [<0000000040151e04>] mutex_lock+0x24/0x48
 [<000000001d05df60>] xfs_reclaim_inodes_ag+0x2b0/0x520 [xfs]
 [<000000001d05ee80>] xfs_reclaim_inodes_nr+0x60/0xb0 [xfs]
 [<000000001d076004>] xfs_fs_free_cached_objects+0x24/0x58 [xfs]
 [<000000004026a79c>] super_cache_scan+0x2fc/0x308
 [<0000000040225f54>] shrink_slab.part.48.constprop.57+0x31c/0x3c8
 [<000000004022927c>] shrink_zone+0xe4/0xe8
 [<0000000040229570>] try_to_free_pages+0x2f0/0x460
 [<000000004021b1b4>] __alloc_pages_nodemask+0x3b4/0x7f0
 [<000000004021b8d4>] alloc_kmem_pages_node+0x5c/0x70
 [<000000004017dd34>] copy_process.part.62+0x184/0x1c18
 [<000000004026ce74>] SyS_stat64+0x4c/0x70

INFO: task kworker/2:0H:1079 blocked for more than 120 seconds.
      Not tainted 4.0.0-rc4+ #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this =
message.
kworker/2:0H    D 00000000401440c0     0  1079      2 0x00000000
Workqueue: xfs-log/sdc5 xfs_log_worker [xfs]
Backtrace:
 [<000000004014e4e8>] __schedule+0x248/0x5d0
 [<000000004014e8b8>] schedule+0x48/0xc8
 [<000000001d0840a4>] _xfs_log_force_lsn+0x394/0x440 [xfs]
 [<000000001d07da14>] xfs_trans_commit+0x224/0x2d0 [xfs]
 [<000000001d040020>] xfs_sync_sb+0x90/0x118 [xfs]
 [<000000001d083c24>] xfs_log_worker+0x94/0x180 [xfs]
 [<000000004019cd88>] process_one_work+0x198/0x458
 [<000000004019dc8c>] worker_thread+0x48c/0x620
 [<00000000401a4824>] kthread+0x144/0x178
[<0000000040144020>] end_fault_vector+0x20/0x28
 [<0000000040145080>] intr_check_sig+0x0/0x3c
 [<000000001c6d8000>] 0x1c6d8000
 [<000000001c6d8000>] 0x1c6d8000
 [<000000001c6d8000>] 0x1c6d8000
 [<000000001c949f5c>] sd_init_command+0x44/0x140 [sd_mod]
 [<000000004035b03c>] blk_recount_segments+0x10c/0x228

INFO: task xgcc:4733 blocked for more than 120 seconds.
      Not tainted 4.0.0-rc4+ #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this =
message.
xgcc            D 00000000401440c0     0  4733   4729 0x00000010
Backtrace:
 [<000000004014e4e8>] __schedule+0x248/0x5d0
 [<000000004014e8b8>] schedule+0x48/0xc8
 [<000000004014ed58>] schedule_preempt_disabled+0x20/0x38
 [<0000000040151b70>] __mutex_lock_slowpath+0x180/0x3f0
 [<0000000040151e04>] mutex_lock+0x24/0x48
 [<000000001d05df60>] xfs_reclaim_inodes_ag+0x2b0/0x520 [xfs]
[<000000001d076004>] xfs_fs_free_cached_objects+0x24/0x58 [xfs]
 [<000000004026a79c>] super_cache_scan+0x2fc/0x308
 [<0000000040225f54>] shrink_slab.part.48.constprop.57+0x31c/0x3c8
 [<000000004022927c>] shrink_zone+0xe4/0xe8
 [<0000000040229570>] try_to_free_pages+0x2f0/0x460
 [<000000004021b1b4>] __alloc_pages_nodemask+0x3b4/0x7f0
 [<000000004021b62c>] __get_free_pages+0x3c/0xf0
 [<000000004017cf98>] mm_init.isra.56+0x240/0x308
 [<000000004017d54c>] mm_alloc+0x6c/0x90

INFO: task kthreadd:2 blocked for more than 120 seconds.
      Not tainted 4.0.0-rc4+ #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this =
message.
kthreadd        D 00000000401440c0     0     2      0 0x00000000
Backtrace:
 [<000000004014e4e8>] __schedule+0x248/0x5d0
 [<000000004014e8b8>] schedule+0x48/0xc8
 [<000000004014ed58>] schedule_preempt_disabled+0x20/0x38
 [<0000000040151b70>] __mutex_lock_slowpath+0x180/0x3f0
 [<0000000040151e04>] mutex_lock+0x24/0x48
[<000000001d05df60>] xfs_reclaim_inodes_ag+0x2b0/0x520 [xfs]
 [<000000001d05ee80>] xfs_reclaim_inodes_nr+0x60/0xb0 [xfs]
 [<000000001d076004>] xfs_fs_free_cached_objects+0x24/0x58 [xfs]
 [<000000004026a79c>] super_cache_scan+0x2fc/0x308
 [<0000000040225f54>] shrink_slab.part.48.constprop.57+0x31c/0x3c8
 [<000000004022927c>] shrink_zone+0xe4/0xe8
 [<0000000040229570>] try_to_free_pages+0x2f0/0x460
 [<000000004021b1b4>] __alloc_pages_nodemask+0x3b4/0x7f0
 [<000000004021b8d4>] alloc_kmem_pages_node+0x5c/0x70
 [<000000004017dd34>] copy_process.part.62+0x184/0x1c18
 [<0000000040144020>] end_fault_vector+0x20/0x28

INFO: task kswapd1:285 blocked for more than 120 seconds.
      Not tainted 4.0.0-rc4+ #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this =
message.
kswapd1         D 00000000401440c0     0   285      2 0x00000000
Backtrace:
 [<000000004014e4e8>] __schedule+0x248/0x5d0
 [<000000004014e8b8>] schedule+0x48/0xc8
 [<000000001d083f40>] _xfs_log_force_lsn+0x230/0x440 [xfs]
[<000000001d08417c>] xfs_log_force_lsn+0x2c/0x90 [xfs]
 [<000000001d068614>] __xfs_iunpin_wait+0xb4/0x1f0 [xfs]
 [<000000001d06d78c>] xfs_iunpin_wait+0x2c/0x190 [xfs]
 [<000000001d05d7fc>] xfs_reclaim_inode+0x9c/0x550 [xfs]
 [<000000001d05de68>] xfs_reclaim_inodes_ag+0x1b8/0x520 [xfs]
 [<000000001d05ee80>] xfs_reclaim_inodes_nr+0x60/0xb0 [xfs]
 [<000000001d076004>] xfs_fs_free_cached_objects+0x24/0x58 [xfs]
 [<000000004026a79c>] super_cache_scan+0x2fc/0x308
 [<0000000040225f54>] shrink_slab.part.48.constprop.57+0x31c/0x3c8
 [<000000004022927c>] shrink_zone+0xe4/0xe8
 [<0000000040229cf4>] kswapd+0x614/0xae0
 [<00000000401a4824>] kthread+0x144/0x178
 [<0000000040144020>] end_fault_vector+0x20/0x28

INFO: task kswapd2:286 blocked for more than 120 seconds.
      Not tainted 4.0.0-rc4+ #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this =
message.
kswapd2         D 00000000401440c0     0   286      2 0x00000000
Backtrace:
 [<000000004014e4e8>] __schedule+0x248/0x5d0
[<000000004014e8b8>] schedule+0x48/0xc8
 [<000000004014ed58>] schedule_preempt_disabled+0x20/0x38
 [<0000000040151b70>] __mutex_lock_slowpath+0x180/0x3f0
 [<0000000040151e04>] mutex_lock+0x24/0x48
 [<000000001d05df60>] xfs_reclaim_inodes_ag+0x2b0/0x520 [xfs]
 [<000000001d05ee80>] xfs_reclaim_inodes_nr+0x60/0xb0 [xfs]
 [<000000001d076004>] xfs_fs_free_cached_objects+0x24/0x58 [xfs]
 [<000000004026a79c>] super_cache_scan+0x2fc/0x308
 [<0000000040225f54>] shrink_slab.part.48.constprop.57+0x31c/0x3c8
 [<000000004022927c>] shrink_zone+0xe4/0xe8
 [<0000000040229cf4>] kswapd+0x614/0xae0
 [<00000000401a4824>] kthread+0x144/0x178
 [<0000000040144020>] end_fault_vector+0x20/0x28
 [<00000000402136d8>] mempool_alloc_slab+0x28/0x40
 [<0000000040213974>] mempool_alloc+0xa4/0x208

INFO: task postgres:3006 blocked for more than 120 seconds.
      Not tainted 4.0.0-rc4+ #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this =
message.
postgres        D 00000000401440c0     0  3006      1 0x00000010
Backtrace:
 [<000000004014e4e8>] __schedule+0x248/0x5d0
 [<000000004014e8b8>] schedule+0x48/0xc8
 [<000000004014ed58>] schedule_preempt_disabled+0x20/0x38
 [<0000000040151b70>] __mutex_lock_slowpath+0x180/0x3f0
 [<0000000040151e04>] mutex_lock+0x24/0x48
 [<000000001d05df60>] xfs_reclaim_inodes_ag+0x2b0/0x520 [xfs]
 [<000000001d05ee80>] xfs_reclaim_inodes_nr+0x60/0xb0 [xfs]
 [<000000001d076004>] xfs_fs_free_cached_objects+0x24/0x58 [xfs]
 [<000000004026a79c>] super_cache_scan+0x2fc/0x308
 [<0000000040225f54>] shrink_slab.part.48.constprop.57+0x31c/0x3c8
 [<000000004022927c>] shrink_zone+0xe4/0xe8
 [<0000000040229570>] try_to_free_pages+0x2f0/0x460
 [<000000004021b1b4>] __alloc_pages_nodemask+0x3b4/0x7f0
 [<000000004021b8d4>] alloc_kmem_pages_node+0x5c/0x70
 [<000000004017dd34>] copy_process.part.62+0x184/0x1c18
 [<0000000040192474>] sigprocmask+0x74/0xb0


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From - Thu Nov 08 21:37:24 2018
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X-Mozilla-Keys:                                                                                 
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From: Federico Sologuren <federico.sologuren@gmail.com>
Newsgroups: gmane.linux.debian.ports.hppa,gmane.linux.ports.parisc
Subject: Re: Pre-DEBIAN 8.0 install images for HPPA architecture (debian-ports
 unstable release)
Date: Sun, 22 Mar 2015 21:00:04 -0400
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Cc: HPPA porters <debian-hppa@lists.debian.org>, 
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To: Helge Deller <deller@gmx.de>
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--001a11479f5006ee7d0511ea3146
Content-Type: text/plain; charset=UTF-8

thank you. i finished installation on HP Visualize B2000. it seems to be
working fine. (terminal  mode only since i knew from past installation that
graphics card for B2000 is not supported.

thank you for the update and installation instructions.

On Tue, Feb 24, 2015 at 12:13 PM, Helge Deller <deller@gmx.de> wrote:

> Hello everyone,
>
> I've prepared some initial netboot installation medias for
>         DEBIAN 8.0 on HPPA
>
> which are available at:
>         http://ftp.debian-ports.org/debian-cd/hppa/debian-8.0/
>
> You can find the instructions on how to install Debian 8.0 on hppa in our
> wiki at
>         https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation
>
> The install images will install binaries from debian-ports (Debian
> "unstable").
>
> Major changes include:
> - Based on Debian 8.0 code base
> - Full systemd support
> - Linux kernel modules for SATA included
> - Lots of bug fixes
> - Should support all common PA-RISC hardware (on C8000 installation needs
> to be done via serial port)
>
> I'm happy to get your feedback (either as bug report or successful
> installation report).
>
> Helge
>
>
> --
> To UNSUBSCRIBE, email to debian-hppa-REQUEST@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact
> listmaster@lists.debian.org
> Archive: https://lists.debian.org/54ECB150.80907@gmx.de
>
>


-- 
Federico

--001a11479f5006ee7d0511ea3146
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">thank you. i finished installation on HP Visualize B2000. =
it seems to be working fine. (terminal =C2=A0mode only since i knew from pa=
st installation that graphics card for B2000 is not supported.<div><br></di=
v><div>thank you for the update and installation instructions.</div></div><=
div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Tue, Feb 24, 20=
15 at 12:13 PM, Helge Deller <span dir=3D"ltr">&lt;<a href=3D"mailto:deller=
@gmx.de" target=3D"_blank">deller@gmx.de</a>&gt;</span> wrote:<br><blockquo=
te class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc so=
lid;padding-left:1ex">Hello everyone,<br>
<br>
I&#39;ve prepared some initial netboot installation medias for<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 DEBIAN 8.0 on HPPA<br>
<br>
which are available at:<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 <a href=3D"http://ftp.debian-ports.org/debian-c=
d/hppa/debian-8.0/" target=3D"_blank">http://ftp.debian-ports.org/<u></u>de=
bian-cd/hppa/debian-8.0/</a><br>
<br>
You can find the instructions on how to install Debian 8.0 on hppa in our w=
iki at<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 <a href=3D"https://parisc.wiki.kernel.org/index=
.php/Debian_Ports_Installation" target=3D"_blank">https://parisc.wiki.kerne=
l.<u></u>org/index.php/Debian_Ports_<u></u>Installation</a><br>
<br>
The install images will install binaries from debian-ports (Debian &quot;un=
stable&quot;).<br>
<br>
Major changes include:<br>
- Based on Debian 8.0 code base<br>
- Full systemd support<br>
- Linux kernel modules for SATA included<br>
- Lots of bug fixes<br>
- Should support all common PA-RISC hardware (on C8000 installation needs t=
o be done via serial port)<br>
<br>
I&#39;m happy to get your feedback (either as bug report or successful inst=
allation report).<span class=3D"HOEnZb"><font color=3D"#888888"><br>
<br>
Helge<br>
<br>
<br>
-- <br>
To UNSUBSCRIBE, email to <a href=3D"mailto:debian-hppa-REQUEST@lists.debian=
.org" target=3D"_blank">debian-hppa-REQUEST@lists.<u></u>debian.org</a><br>
with a subject of &quot;unsubscribe&quot;. Trouble? Contact <a href=3D"mail=
to:listmaster@lists.debian.org" target=3D"_blank">listmaster@lists.debian.o=
rg</a><br>
Archive: <a href=3D"https://lists.debian.org/54ECB150.80907@gmx.de" target=
=3D"_blank">https://lists.debian.org/<u></u>54ECB150.80907@gmx.de</a><br>
<br>
</font></span></blockquote></div><br><br clear=3D"all"><div><br></div>-- <b=
r><div class=3D"gmail_signature">Federico</div>
</div>

--001a11479f5006ee7d0511ea3146--



From - Thu Nov 08 21:37:24 2018
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X-Mozilla-Keys:                                                                                 
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From: Yijing Wang <wangyijing@huawei.com>
Newsgroups: gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.ports.parisc
Subject: [PATCH v7 22/31] parisc/PCI: Use pci_scan_root_bus() for simplicity
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Cc: Jiang Liu <jiang.liu@linux.intel.com>, <linux-pci@vger.kernel.org>,
	Yinghai Lu <yinghai@kernel.org>,
	<linux-kernel@vger.kernel.org>,
	Marc Zyngier <marc.zyngier@arm.com>,
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	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Rusty Russell <rusty@rustcorp.com.au>,
	Tony Luck <tony.luck@intel.com>, <linux-ia64@vger.kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	"Guan Xuetao" <gxt@mprc.pku.edu.cn>, <linux-alpha@vger.kernel.org>,
	<linux-m68k@lists.linux-m68k.org>, Liviu Dudau <liviu@dudau.co.uk>,
	"Arnd Bergmann" <arnd@arndb.de>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	"Yijing Wang" <wangyijing@huawei.com>,
	Yijing Wang <wangyijing0307@gmail.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	<linux-parisc@vger.kernel.org>
To: Bjorn Helgaas <bhelgaas@google.com>
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From: Yijing Wang <wangyijing0307@gmail.com>

Now pci_bus_add_devices() has been ripped out
from pci_scan_root_bus(), we could use pci_scan_root_bus()
instead of pci_create_root_bus() + pci_scan_child_bus()
for simplicity.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    4 ++--
 drivers/parisc/lba_pci.c |    4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index f375252..146c3ff 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -985,7 +985,7 @@ static int __init dino_probe(struct parisc_device *dev)
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev,
+	dino_dev->hba.hba_bus = bus = pci_scan_root_bus(&dev->dev,
 			 0, dino_current_bus, &dino_cfg_ops, NULL, &resources);
 	if (!bus) {
 		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
@@ -996,7 +996,7 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
-	max = pci_scan_child_bus(bus);
+	max = pci_bus_child_max_busnr(bus);
 	pci_bus_update_busn_res_end(bus, max);
 
 	/* This code *depends* on scanning being single threaded
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 2949030..b630364 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1563,14 +1563,14 @@ lba_driver_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
-		pci_create_root_bus(&dev->dev, 0, lba_dev->hba.bus_num.start,
+		pci_scan_root_bus(&dev->dev, 0, lba_dev->hba.bus_num.start,
 				    cfg_ops, NULL, &resources);
 	if (!lba_bus) {
 		pci_free_resource_list(&resources);
 		return 0;
 	}
 
-	max = pci_scan_child_bus(lba_bus);
+	max = pci_bus_child_max_busnr(lba_bus);
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
-- 
1.7.1


From - Thu Nov 08 21:37:25 2018
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From: Yijing Wang <wangyijing@huawei.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.pci,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.ports.parisc
Subject: [PATCH v8 22/30] parisc/PCI: Use pci_scan_root_bus() for simplicity
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Cc: Jiang Liu <jiang.liu@linux.intel.com>, <linux-pci@vger.kernel.org>,
	Yinghai Lu <yinghai@kernel.org>,
	<linux-kernel@vger.kernel.org>,
	Marc Zyngier <marc.zyngier@arm.com>,
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	Yijing Wang <wangyijing0307@gmail.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	<linux-parisc@vger.kernel.org>
To: Bjorn Helgaas <bhelgaas@google.com>
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From: Yijing Wang <wangyijing0307@gmail.com>

Now pci_bus_add_devices() has been ripped out
from pci_scan_root_bus(), we could use pci_scan_root_bus()
instead of pci_create_root_bus() + pci_scan_child_bus()
for simplicity.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    4 ++--
 drivers/parisc/lba_pci.c |    4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index f375252..146c3ff 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -985,7 +985,7 @@ static int __init dino_probe(struct parisc_device *dev)
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev,
+	dino_dev->hba.hba_bus = bus = pci_scan_root_bus(&dev->dev,
 			 0, dino_current_bus, &dino_cfg_ops, NULL, &resources);
 	if (!bus) {
 		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
@@ -996,7 +996,7 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
-	max = pci_scan_child_bus(bus);
+	max = pci_bus_child_max_busnr(bus);
 	pci_bus_update_busn_res_end(bus, max);
 
 	/* This code *depends* on scanning being single threaded
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 2949030..b630364 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1563,14 +1563,14 @@ lba_driver_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
-		pci_create_root_bus(&dev->dev, 0, lba_dev->hba.bus_num.start,
+		pci_scan_root_bus(&dev->dev, 0, lba_dev->hba.bus_num.start,
 				    cfg_ops, NULL, &resources);
 	if (!lba_bus) {
 		pci_free_resource_list(&resources);
 		return 0;
 	}
 
-	max = pci_scan_child_bus(lba_bus);
+	max = pci_bus_child_max_busnr(lba_bus);
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
-- 
1.7.1


From - Thu Nov 08 21:37:25 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc fixes for v4.0
Date: Fri, 27 Mar 2015 23:23:28 +0100
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
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Hi Linus,

Please pull three patches for kernel-4.0 for the parisc architecture from

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.0-1

One patch from Mikulas fixes a bug on parisc by artifically incrementing the
counter in pmd_free when the kernel tries to free the preallocated pmd.
Other than that we now prevent that syscalls gets added without incrementing
__NR_Linux_syscalls and fix the initial pmd setup code if a default page size
greater than 4k has been selected. 

Thanks,
Helge


----------------------------------------------------------------
Helge Deller (2):
      parisc: Add compile-time check when adding new syscalls
      parisc: Fix pmd code to depend on PT_NLEVELS value, not on CONFIG_64BIT

Mikulas Patocka (1):
      parisc: mm: don't count preallocated pmds

 arch/parisc/include/asm/pgalloc.h  | 17 ++++++++++-------
 arch/parisc/kernel/syscall_table.S |  9 ++++++---
 2 files changed, 16 insertions(+), 10 deletions(-)
--
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From - Thu Nov 08 21:37:25 2018
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From: "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.input
Subject: [PATCH 42/86] input/serio: use uapi/linux/pci_ids.h directly
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	Helge Deller <deller@gmx.de>,
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Xref: news.gmane.org gmane.linux.kernel:1919801 gmane.linux.ports.parisc:25679 gmane.linux.kernel.input:42398
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1919801>

Header moved from linux/pci_ids.h to uapi/linux/pci_ids.h,
use the new header directly so we can drop
the wrapper in include/linux/pci_ids.h.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 drivers/input/serio/gscps2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
index 94ab494..b7d0854 100644
--- a/drivers/input/serio/gscps2.c
+++ b/drivers/input/serio/gscps2.c
@@ -31,7 +31,7 @@
 #include <linux/spinlock.h>
 #include <linux/delay.h>
 #include <linux/ioport.h>
-#include <linux/pci_ids.h>
+#include <uapi/linux/pci_ids.h>
 
 #include <asm/irq.h>
 #include <asm/io.h>
-- 
MST


From - Thu Nov 08 21:37:25 2018
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From: "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups: gmane.linux.kernel.input,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 81/86] input/serio: drop pci_ids dependency
Date: Sun, 29 Mar 2015 15:43:18 +0200
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Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>,
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This driver does not use any PCI IDs, don't include
the pci_ids.h header.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 drivers/input/serio/gscps2.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
index b7d0854..ecba666 100644
--- a/drivers/input/serio/gscps2.c
+++ b/drivers/input/serio/gscps2.c
@@ -31,7 +31,6 @@
 #include <linux/spinlock.h>
 #include <linux/delay.h>
 #include <linux/ioport.h>
-#include <uapi/linux/pci_ids.h>
 
 #include <asm/irq.h>
 #include <asm/io.h>
-- 
MST

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From - Thu Nov 08 21:37:25 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.next,gmane.linux.kernel
Subject: linux-next: manual merge of the akpm-current tree with the
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Hi Andrew,

Today's linux-next merge of the akpm-current tree got a conflict in
arch/parisc/include/asm/Kbuild between commit 476840458128 ("parisc:
Eliminate sg_virt_addr() and private scatterlist.h") from the parisc-hd
tree and commit e494f4a463cd ("parisc: switch to using asm-generic for
seccomp.h") from the akpm-current tree.

I fixed it up (see below) and can carry the fix as necessary (no action
is required).

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

diff --cc arch/parisc/include/asm/Kbuild
index a5f037535aab,12b341d04f88..000000000000
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@@ -20,7 -20,7 +20,8 @@@ generic-y +=3D param.
  generic-y +=3D percpu.h
  generic-y +=3D poll.h
  generic-y +=3D preempt.h
 +generic-y +=3D scatterlist.h
+ generic-y +=3D seccomp.h
  generic-y +=3D segment.h
  generic-y +=3D topology.h
  generic-y +=3D trace_clock.h

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From - Thu Nov 08 21:37:25 2018
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Subject: [PATCH v2 2/6] input/serio: drop pci_ids dependency
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Cc: Bjorn Helgaas <bhelgaas@google.com>, linux-pci@vger.kernel.org,
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This driver does not use any PCI IDs, don't include
the pci_ids.h header.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 drivers/input/serio/gscps2.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
index 94ab494..ecba666 100644
--- a/drivers/input/serio/gscps2.c
+++ b/drivers/input/serio/gscps2.c
@@ -31,7 +31,6 @@
 #include <linux/spinlock.h>
 #include <linux/delay.h>
 #include <linux/ioport.h>
-#include <linux/pci_ids.h>
 
 #include <asm/irq.h>
 #include <asm/io.h>
-- 
MST


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: E Class and SCSI (53c700 driver)
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To: Dmitry the Zuryanovich <dreadbit@gmail.com>,
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Hi Dmitry,

I've added the parisc-kernel-devel mailing list too, since I expect
that *if* somebody is able to answer your question, it will probably
be on the parisc-kernel-devel list...

On 31.03.2015 00:11, Dmitry the Zuryanovich wrote:
> As I understand, E class (in my case - E25) has LASI based 53c710
> which is handled by 53c700.c? (and in case of workstations wrapped by
> lasi700 - what's for? Just for detecting it?)
>
> If I know that that's
>
> 5. Sahp Baat Kiuh SCSI at 0xfff74000 [56/52] {4, 0x0, 0x044, 0x00039}
>
> , is there a reason to try to
>
> #modprobe 53c700 clock=25  base=0xfff74000

Looking at drivers/scsi/lasi700.c, it seems the lasi700 driver sets
additional flags like force_le_on_be, chip710, burst_length and so on.
In addition, the IRQs gets connected via drivers/parisc/lasi.c (see lasi_choose_irq()).
I assume you would need at least a "case 0x39" in there.
But James is the expert on the 53c700 driver, so he might know more... ?
  
> [correct my syntax] and may I expect this to work somehow?
>
> What's the problem with  SCSI on E class? Is that a need of some
> driver which calls 53c700.c with correct parameters taken from
> hardware? Can it be just passed to module via parameter or the
> problem is deeper?

It might be deeper.
In  arch/parisc/kernel/hardware.c I see:
         {HPHW_A_DMA, 0x044, 0x00039, 0x80, "Sahp Baat Kiuh SCSI"},
while other SCSI drivers on LASI have HPHW_FIO, e.g.:
	{HPHW_FIO, 0x016, 0x00082, 0x0, "Gecko Core SCSI"},


For reference, here is the full dmesg from Dmitry when he tried to boot his E25
machine with a recent Linux kernel:
ftp://parisc.parisc-linux.org/dmesg/E25.dmesg  (http://pastebin.com/sXqUjVub)

Helge
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From - Thu Nov 08 21:37:25 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: E Class and SCSI (53c700 driver)
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On Thu, 2015-04-02 at 10:07 +0200, Helge Deller wrote:
> Hi Dmitry,
> 
> I've added the parisc-kernel-devel mailing list too, since I expect
> that *if* somebody is able to answer your question, it will probably
> be on the parisc-kernel-devel list...
> 
> On 31.03.2015 00:11, Dmitry the Zuryanovich wrote:
> > As I understand, E class (in my case - E25) has LASI based 53c710
> > which is handled by 53c700.c? (and in case of workstations wrapped by
> > lasi700 - what's for? Just for detecting it?)
> >
> > If I know that that's
> >
> > 5. Sahp Baat Kiuh SCSI at 0xfff74000 [56/52] {4, 0x0, 0x044, 0x00039}
> >
> > , is there a reason to try to
> >
> > #modprobe 53c700 clock=25  base=0xfff74000
> 
> Looking at drivers/scsi/lasi700.c, it seems the lasi700 driver sets
> additional flags like force_le_on_be, chip710, burst_length and so on.
> In addition, the IRQs gets connected via drivers/parisc/lasi.c (see lasi_choose_irq()).
> I assume you would need at least a "case 0x39" in there.
> But James is the expert on the 53c700 driver, so he might know more... ?

Well, I can tell you that the modprobe won't work.  The 53c700 is
designed to be a wrapper driver, meaning that it relies on another
driver (like lasi700 or zorro7xxx or something) to set up the interrupt
line and the register mappings.

Probably all that's needed is a tiny wrapper driver for whatever bus
it's on (what bus is this?).  If you look at lasi, it basically pulls
the parameters out of firmware, translates the lasi specific IRQ setting
and enables the GSC interrupt (plus some LED stuff specific to lasi).

> > [correct my syntax] and may I expect this to work somehow?
> >
> > What's the problem with  SCSI on E class? Is that a need of some
> > driver which calls 53c700.c with correct parameters taken from
> > hardware? Can it be just passed to module via parameter or the
> > problem is deeper?
> 
> It might be deeper.
> In  arch/parisc/kernel/hardware.c I see:
>          {HPHW_A_DMA, 0x044, 0x00039, 0x80, "Sahp Baat Kiuh SCSI"},

That tells us it's on the Precision bus, doesn't it?

> while other SCSI drivers on LASI have HPHW_FIO, e.g.:
> 	{HPHW_FIO, 0x016, 0x00082, 0x0, "Gecko Core SCSI"},
> 
> 
> For reference, here is the full dmesg from Dmitry when he tried to boot his E25
> machine with a recent Linux kernel:
> ftp://parisc.parisc-linux.org/dmesg/E25.dmesg  (http://pastebin.com/sXqUjVub)

There's not enough information there to reverse engineer the information
needed for the driver.

The best docs we have:

https://parisc.wiki.kernel.org/images-parisc/5/52/E-class_hpjournal.pdf

Say the SCSI controller here is precision attached not lasi attached
(the ethernet is on the lasi, though).  Unfortunately, we don't have any
documents at all in the archive for the precision bus that I can find.

James


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On 2015-04-02, at 4:59 AM, James Bottomley wrote:

> The best docs we have:
> 
> https://parisc.wiki.kernel.org/images-parisc/5/52/E-class_hpjournal.pdf
> 
> Say the SCSI controller here is precision attached not lasi attached
> (the ethernet is on the lasi, though).  Unfortunately, we don't have any
> documents at all in the archive for the precision bus that I can find.

It's also known as HP-IB and quite a few devices were made to attach to it.  Maybe something
can be found with Google.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Thu, 2015-04-02 at 07:43 -0400, John David Anglin wrote:
> On 2015-04-02, at 4:59 AM, James Bottomley wrote:
> 
> > The best docs we have:
> > 
> > https://parisc.wiki.kernel.org/images-parisc/5/52/E-class_hpjournal.pdf
> > 
> > Say the SCSI controller here is precision attached not lasi attached
> > (the ethernet is on the lasi, though).  Unfortunately, we don't have any
> > documents at all in the archive for the precision bus that I can find.
> 
> It's also known as HP-IB and quite a few devices were made to attach to it.  Maybe something
> can be found with Google.

Well, what do you know: HP has a computer museum full of obsolete
documentation.

http://www.hpmuseum.net/collection_document.php

If anyone can identify the programming specs for the HP-PB (or better
still the actual SCSI card) we might be in business.

James


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On 2015-04-02, at 7:58 AM, James Bottomley wrote:

> On Thu, 2015-04-02 at 07:43 -0400, John David Anglin wrote:
>> On 2015-04-02, at 4:59 AM, James Bottomley wrote:
>> 
>>> The best docs we have:
>>> 
>>> https://parisc.wiki.kernel.org/images-parisc/5/52/E-class_hpjournal.pdf
>>> 
>>> Say the SCSI controller here is precision attached not lasi attached
>>> (the ethernet is on the lasi, though).  Unfortunately, we don't have any
>>> documents at all in the archive for the precision bus that I can find.
>> 
>> It's also known as HP-IB and quite a few devices were made to attach to it.  Maybe something
>> can be found with Google.
> 
> Well, what do you know: HP has a computer museum full of obsolete
> documentation.
> 
> http://www.hpmuseum.net/collection_document.php
> 
> If anyone can identify the programming specs for the HP-PB (or better
> still the actual SCSI card) we might be in business.


It seems to be a standard: IEEE-488-1978.

Dave
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On Thu, Apr 2, 2015 at 1:59 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
....
> Probably all that's needed is a tiny wrapper driver for whatever bus
> it's on (what bus is this?).  If you look at lasi, it basically pulls
> the parameters out of firmware, translates the lasi specific IRQ setting
> and enables the GSC interrupt (plus some LED stuff specific to lasi).
...
>> In  arch/parisc/kernel/hardware.c I see:
>>          {HPHW_A_DMA, 0x044, 0x00039, 0x80, "Sahp Baat Kiuh SCSI"},
>
> That tells us it's on the Precision bus, doesn't it?

Yes. "E-class" was one of the "alphabet soup" servers with HP-PB
(IIRC, not HP-IB) slots. Since the system uses PA-7100LC, the "system
interconnect" is GSC and an HP-PB bus converter provided access to the
HP-PB slots.

I don't believe the 53c710 was connected on E-class servers based on this table:
    http://www.parisc-linux.org/documentation/hp9000_models.html


                                      CPU    BUILT-IN      ADD-ON SCSI I/O
MODEL STRING     PROJECT NAME        TYPE    SE, FWD/TYPE  SE, FWD, GSC-FWD
------------     ------------------  -----   ------------  ----------------
...
806/E25          WB Orville (48 Mhz) 7100LC  NIO, None     NIO(1),NIO(2),NA

("BUILT-IN" and "ADD-ON" SCSI both are NIO - aka HP-PB)

...
> The best docs we have:
> https://parisc.wiki.kernel.org/images-parisc/5/52/E-class_hpjournal.pdf

Also check on:
    http://www.openpa.net/systems/index.html

or more specifically:
   http://www.openpa.net/systems/hp-9000_e25_e35_e45_e55.html

> Say the SCSI controller here is precision attached not lasi attached
> (the ethernet is on the lasi, though).  Unfortunately, we don't have any
> documents at all in the archive for the precision bus that I can find.

I don't recall any HP-PB specific docs being released.  What I can say
is the HP-PB devices used transaction based interrupt routing similar
to how Dino and other PCI host controllers generated interrupts. So no
IRQ lines are used for HP-PB. And IIRC, there is also no IOMMU in
D/E/F/H/I series servers (meaning they are NOT DMA/Cache coherent
systems).

Lastly, the HP-PB SCSI adapters used a proprietary HP designed (not
Symbios designed) SCSI controller. No docs were ever published for
those either. The "fast-narrow SE" controller (28655A) was directly
controlled by the host computer and was not particularly efficient
(IIRC: 3 interrupts per transaction). The "fast-Wide HVD" (28696A) had
an i960 on board to manage the "version 4" chip. SCSI bus control was
handed to the host computer if anything happened that the i960
couldn't handle.

cheers,
grant

ps. I also found the manual for 28655A:
   http://pdfs.icecat.biz/pdf/22940335-3766.pdf
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From - Thu Nov 08 21:37:25 2018
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From: Grant Grundler <grantgrundler@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.debian.ports.hppa
Subject: Re: E Class and SCSI (53c700 driver)
Date: Thu, 2 Apr 2015 11:14:38 -0700
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On Thu, Apr 2, 2015 at 4:58 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
...
> Well, what do you know: HP has a computer museum full of obsolete
> documentation.
>
> http://www.hpmuseum.net/collection_document.php

oh wow...

> If anyone can identify the programming specs for the HP-PB (or better
> still the actual SCSI card) we might be in business.

This doc will help a lot:
    3000-900_9000-800_OnlineDiagnosticsSubManual_VolIII_LAN-SCSI-MUX_09740-90034_324pages_Jul91.pdf

Look at Section 18 "SCSIPBA" - register descriptions starting on page
18-21. Register overview on 18-33 (page 216 of the PDF).

And I finally found the name of the SCSI chip in the above doc: SPIFI
(v3).  The "Fast-Wide HVD" NIO card uses SPIFI v4.

Knowing that name also helped find the Net BSD driver (again):
    http://lists.parisc-linux.org/pipermail/parisc-linux/2002-June/016557.html
    http://lists.parisc-linux.org/pipermail/parisc-linux/2002-June/016562.html
    http://lists.parisc-linux.org/pipermail/parisc-linux/2002-June/016563.html
    http://lists.parisc-linux.org/pipermail/parisc-linux/2002-June/016576.html

and looks like NetBSD "newsmips" did support SPIFI-3:
   http://netbsd.mirrors.treibsand.com/ports/newsmips/

cheers,
grant

ps. It's embarrassing I couldn't remember the name of the SCSI chip: I
worked on HPUX SPIFI-4 driver between 1994-1996.
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From - Thu Nov 08 21:37:26 2018
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From: Yijing Wang <wangyijing@huawei.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.ports.parisc
Subject: [PATCH v9 22/30] parisc/PCI: Use pci_scan_root_bus() for simplicity
Date: Fri, 3 Apr 2015 17:25:56 +0800
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To: Bjorn Helgaas <bhelgaas@google.com>
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From: Yijing Wang <wangyijing0307@gmail.com>

Now pci_bus_add_devices() has been ripped out
from pci_scan_root_bus(), we could use pci_scan_root_bus()
instead of pci_create_root_bus() + pci_scan_child_bus()
for simplicity.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    4 ++--
 drivers/parisc/lba_pci.c |    4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index f375252..146c3ff 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -985,7 +985,7 @@ static int __init dino_probe(struct parisc_device *dev)
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev,
+	dino_dev->hba.hba_bus = bus = pci_scan_root_bus(&dev->dev,
 			 0, dino_current_bus, &dino_cfg_ops, NULL, &resources);
 	if (!bus) {
 		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
@@ -996,7 +996,7 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
-	max = pci_scan_child_bus(bus);
+	max = pci_bus_child_max_busnr(bus);
 	pci_bus_update_busn_res_end(bus, max);
 
 	/* This code *depends* on scanning being single threaded
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 2949030..b630364 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1563,14 +1563,14 @@ lba_driver_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
-		pci_create_root_bus(&dev->dev, 0, lba_dev->hba.bus_num.start,
+		pci_scan_root_bus(&dev->dev, 0, lba_dev->hba.bus_num.start,
 				    cfg_ops, NULL, &resources);
 	if (!lba_bus) {
 		pci_free_resource_list(&resources);
 		return 0;
 	}
 
-	max = pci_scan_child_bus(lba_bus);
+	max = pci_bus_child_max_busnr(lba_bus);
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
-- 
1.7.1


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> And I finally found the name of the SCSI chip in the above doc: SPIFI
> (v3).  The "Fast-Wide HVD" NIO card uses SPIFI v4.


http://xepb.org/dtz/2015E25.html - here is photos of the boards, if this 
helps.

-- 
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From - Thu Nov 08 21:37:26 2018
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Subject: Re: E Class and SCSI (53c700 driver)
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On Fri, 2015-04-03 at 15:22 +0300, Dmitry the Zuryanovich wrote:
> > And I finally found the name of the SCSI chip in the above doc: SPIFI
> > (v3).  The "Fast-Wide HVD" NIO card uses SPIFI v4.
> 
> 
> http://xepb.org/dtz/2015E25.html - here is photos of the boards, if this 
> helps.

Well, I think that tells us it's not Symbios (or NCR as it was then)
53c700 based.  It looks like there's a custom HP ASIC, probably for the
PB connection and a Xilinx FPGA which may be configured to run the bus.

James


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Subject: [PATCH] sound: Use const struct ac97_quirk
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Use const to reduce data by ~3Kb.

Signed-off-by: Joe Perches <joe@perches.com>
---
 include/sound/ac97_codec.h          | 4 +++-
 sound/pci/ac97/ac97_codec.c         | 3 ++-
 sound/pci/ad1889.c                  | 2 +-
 sound/pci/atiixp.c                  | 2 +-
 sound/pci/cs5535audio/cs5535audio.c | 2 +-
 sound/pci/intel8x0.c                | 2 +-
 sound/pci/via82xx.c                 | 2 +-
 7 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
index d315a08..0e9d75b 100644
--- a/include/sound/ac97_codec.h
+++ b/include/sound/ac97_codec.h
@@ -608,7 +608,9 @@ struct ac97_quirk {
 	int type;		/* quirk type above */
 };
 
-int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override);
+int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
+			   const struct ac97_quirk *quirk,
+			   const char *override);
 int snd_ac97_set_rate(struct snd_ac97 *ac97, int reg, unsigned int rate);
 
 /*
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index 5bca1a3..82259ca 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -2902,7 +2902,8 @@ static int apply_quirk_str(struct snd_ac97 *ac97, const char *typestr)
  * Return: Zero if successful, or a negative error code on failure.
  */
 
-int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override)
+int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
+			   const struct ac97_quirk *quirk, const char *override)
 {
 	int result;
 
diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index 850a8c9..66ddd98 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -747,7 +747,7 @@ snd_ad1889_proc_init(struct snd_ad1889 *chip)
 		snd_info_set_text_ops(entry, chip, snd_ad1889_proc_read);
 }
 
-static struct ac97_quirk ac97_quirks[] = {
+static const struct ac97_quirk ac97_quirks[] = {
 	{
 		.subvendor = 0x11d4,	/* AD */
 		.subdevice = 0x1889,	/* AD1889 */
diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index d5f15c9..42a20c8 100644
--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -1390,7 +1390,7 @@ static irqreturn_t snd_atiixp_interrupt(int irq, void *dev_id)
  * ac97 mixer section
  */
 
-static struct ac97_quirk ac97_quirks[] = {
+static const struct ac97_quirk ac97_quirks[] = {
 	{
 		.subvendor = 0x103c,
 		.subdevice = 0x006b,
diff --git a/sound/pci/cs5535audio/cs5535audio.c b/sound/pci/cs5535audio/cs5535audio.c
index 802c33f..963b912 100644
--- a/sound/pci/cs5535audio/cs5535audio.c
+++ b/sound/pci/cs5535audio/cs5535audio.c
@@ -43,7 +43,7 @@ static char *ac97_quirk;
 module_param(ac97_quirk, charp, 0444);
 MODULE_PARM_DESC(ac97_quirk, "AC'97 board specific workarounds.");
 
-static struct ac97_quirk ac97_quirks[] = {
+static const struct ac97_quirk ac97_quirks[] = {
 #if 0 /* Not yet confirmed if all 5536 boards are HP only */
 	{
 		.subvendor = PCI_VENDOR_ID_AMD, 
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index 2c5484e..749069a 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -1795,7 +1795,7 @@ static struct ac97_pcm ac97_pcm_defs[] = {
 	},
 };
 
-static struct ac97_quirk ac97_quirks[] = {
+static const struct ac97_quirk ac97_quirks[] = {
         {
 		.subvendor = 0x0e11,
 		.subdevice = 0x000e,
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index 8622283..3dd038b 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -1812,7 +1812,7 @@ static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
 	chip->ac97 = NULL;
 }
 
-static struct ac97_quirk ac97_quirks[] = {
+static const struct ac97_quirk ac97_quirks[] = {
 	{
 		.subvendor = 0x1106,
 		.subdevice = 0x4161,



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At Sat, 04 Apr 2015 13:38:25 -0700,
Joe Perches wrote:
> 
> Use const to reduce data by ~3Kb.
> 
> Signed-off-by: Joe Perches <joe@perches.com>

Applied, thanks.


Takashi

> ---
>  include/sound/ac97_codec.h          | 4 +++-
>  sound/pci/ac97/ac97_codec.c         | 3 ++-
>  sound/pci/ad1889.c                  | 2 +-
>  sound/pci/atiixp.c                  | 2 +-
>  sound/pci/cs5535audio/cs5535audio.c | 2 +-
>  sound/pci/intel8x0.c                | 2 +-
>  sound/pci/via82xx.c                 | 2 +-
>  7 files changed, 10 insertions(+), 7 deletions(-)
> 
> diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
> index d315a08..0e9d75b 100644
> --- a/include/sound/ac97_codec.h
> +++ b/include/sound/ac97_codec.h
> @@ -608,7 +608,9 @@ struct ac97_quirk {
>  	int type;		/* quirk type above */
>  };
>  
> -int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override);
> +int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
> +			   const struct ac97_quirk *quirk,
> +			   const char *override);
>  int snd_ac97_set_rate(struct snd_ac97 *ac97, int reg, unsigned int rate);
>  
>  /*
> diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
> index 5bca1a3..82259ca 100644
> --- a/sound/pci/ac97/ac97_codec.c
> +++ b/sound/pci/ac97/ac97_codec.c
> @@ -2902,7 +2902,8 @@ static int apply_quirk_str(struct snd_ac97 *ac97, const char *typestr)
>   * Return: Zero if successful, or a negative error code on failure.
>   */
>  
> -int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override)
> +int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
> +			   const struct ac97_quirk *quirk, const char *override)
>  {
>  	int result;
>  
> diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
> index 850a8c9..66ddd98 100644
> --- a/sound/pci/ad1889.c
> +++ b/sound/pci/ad1889.c
> @@ -747,7 +747,7 @@ snd_ad1889_proc_init(struct snd_ad1889 *chip)
>  		snd_info_set_text_ops(entry, chip, snd_ad1889_proc_read);
>  }
>  
> -static struct ac97_quirk ac97_quirks[] = {
> +static const struct ac97_quirk ac97_quirks[] = {
>  	{
>  		.subvendor = 0x11d4,	/* AD */
>  		.subdevice = 0x1889,	/* AD1889 */
> diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
> index d5f15c9..42a20c8 100644
> --- a/sound/pci/atiixp.c
> +++ b/sound/pci/atiixp.c
> @@ -1390,7 +1390,7 @@ static irqreturn_t snd_atiixp_interrupt(int irq, void *dev_id)
>   * ac97 mixer section
>   */
>  
> -static struct ac97_quirk ac97_quirks[] = {
> +static const struct ac97_quirk ac97_quirks[] = {
>  	{
>  		.subvendor = 0x103c,
>  		.subdevice = 0x006b,
> diff --git a/sound/pci/cs5535audio/cs5535audio.c b/sound/pci/cs5535audio/cs5535audio.c
> index 802c33f..963b912 100644
> --- a/sound/pci/cs5535audio/cs5535audio.c
> +++ b/sound/pci/cs5535audio/cs5535audio.c
> @@ -43,7 +43,7 @@ static char *ac97_quirk;
>  module_param(ac97_quirk, charp, 0444);
>  MODULE_PARM_DESC(ac97_quirk, "AC'97 board specific workarounds.");
>  
> -static struct ac97_quirk ac97_quirks[] = {
> +static const struct ac97_quirk ac97_quirks[] = {
>  #if 0 /* Not yet confirmed if all 5536 boards are HP only */
>  	{
>  		.subvendor = PCI_VENDOR_ID_AMD, 
> diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
> index 2c5484e..749069a 100644
> --- a/sound/pci/intel8x0.c
> +++ b/sound/pci/intel8x0.c
> @@ -1795,7 +1795,7 @@ static struct ac97_pcm ac97_pcm_defs[] = {
>  	},
>  };
>  
> -static struct ac97_quirk ac97_quirks[] = {
> +static const struct ac97_quirk ac97_quirks[] = {
>          {
>  		.subvendor = 0x0e11,
>  		.subdevice = 0x000e,
> diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
> index 8622283..3dd038b 100644
> --- a/sound/pci/via82xx.c
> +++ b/sound/pci/via82xx.c
> @@ -1812,7 +1812,7 @@ static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
>  	chip->ac97 = NULL;
>  }
>  
> -static struct ac97_quirk ac97_quirks[] = {
> +static const struct ac97_quirk ac97_quirks[] = {
>  	{
>  		.subvendor = 0x1106,
>  		.subdevice = 0x4161,
> 
> 

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Cc: linux-kernel@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
	linux-pci@vger.kernel.org,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
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To: "Michael S. Tsirkin" <mst@redhat.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.input/42496>

On Mon, Mar 30, 2015 at 12:59:27PM +0200, Michael S. Tsirkin wrote:
> This driver does not use any PCI IDs, don't include
> the pci_ids.h header.
> 
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

Applied, thank you.

> ---
>  drivers/input/serio/gscps2.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
> index 94ab494..ecba666 100644
> --- a/drivers/input/serio/gscps2.c
> +++ b/drivers/input/serio/gscps2.c
> @@ -31,7 +31,6 @@
>  #include <linux/spinlock.h>
>  #include <linux/delay.h>
>  #include <linux/ioport.h>
> -#include <linux/pci_ids.h>
>  
>  #include <asm/irq.h>
>  #include <asm/io.h>
> -- 
> MST
> 

-- 
Dmitry
--
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From: Quentin Lambert <lambert.quentin@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.alsa.devel,gmane.linux.kernel,gmane.linux.kernel.janitors
Subject: [PATCH] ALSA: remove deprecated use of pci api
Date: Wed, 15 Apr 2015 16:10:17 +0200
Lines: 400
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	Quentin Lambert <lambert.quentin@gmail.com>
To: Thibaut Varene <T-Bone@parisc-linux.org>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.de>,
	Jaya Kumar <jayakumar.alsa@gmail.com>,
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Replace occurences of the pci api by appropriate call to the dma api.

A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr)

@deprecated@
idexpression id;
position p;
@@

(
  pci_dma_supported@p ( id, ...)
|
  pci_alloc_consistent@p ( id, ...)
)

@bad1@
idexpression id;
position deprecated.p;
@@
...when != &id->dev
   when != pci_get_drvdata ( id )
   when != pci_enable_device ( id )
(
  pci_dma_supported@p ( id, ...)
|
  pci_alloc_consistent@p ( id, ...)
)

@depends on !bad1@
idexpression id;
expression direction;
position deprecated.p;
@@

(
- pci_dma_supported@p ( id,
+ dma_supported ( &id->dev,
...
+ , GFP_ATOMIC
  )
|
- pci_alloc_consistent@p ( id,
+ dma_alloc_coherent ( &id->dev,
...
+ , GFP_ATOMIC
  )
)

Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com>
---
 sound/pci/ad1889.c                  |    4 ++--
 sound/pci/ali5451/ali5451.c         |    4 ++--
 sound/pci/als300.c                  |    4 ++--
 sound/pci/als4000.c                 |    4 ++--
 sound/pci/au88x0/au88x0.c           |    4 ++--
 sound/pci/aw2/aw2-alsa.c            |    4 ++--
 sound/pci/azt3328.c                 |    4 ++--
 sound/pci/ca0106/ca0106_main.c      |    4 ++--
 sound/pci/cs5535audio/cs5535audio.c |    4 ++--
 sound/pci/ctxfi/cthw20k1.c          |    4 ++--
 sound/pci/ctxfi/cthw20k2.c          |    4 ++--
 sound/pci/emu10k1/emu10k1_main.c    |    4 ++--
 sound/pci/es1938.c                  |    4 ++--
 sound/pci/es1968.c                  |    4 ++--
 sound/pci/hda/hda_intel.c           |    8 ++++----
 sound/pci/ice1712/ice1712.c         |    4 ++--
 sound/pci/lx6464es/lx6464es.c       |    2 +-
 sound/pci/maestro3.c                |    4 ++--
 sound/pci/mixart/mixart.c           |    2 +-
 sound/pci/pcxhr/pcxhr.c             |    2 +-
 sound/pci/sis7019.c                 |   10 +++++-----
 sound/pci/sonicvibes.c              |    4 ++--
 sound/pci/trident/trident_main.c    |    4 ++--
 23 files changed, 48 insertions(+), 48 deletions(-)

--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -898,8 +898,8 @@ snd_ad1889_create(struct snd_card *card,
 		return err;
 
 	/* check PCI availability (32bit DMA) */
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 ||
-	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
 		dev_err(card->dev, "error setting 32-bit DMA mask.\n");
 		pci_disable_device(pci);
 		return -ENXIO;
--- a/sound/pci/ali5451/ali5451.c
+++ b/sound/pci/ali5451/ali5451.c
@@ -2105,8 +2105,8 @@ static int snd_ali_create(struct snd_car
 	if (err < 0)
 		return err;
 	/* check, if we can restrict PCI DMA transfers to 31 bits */
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(31)) < 0 ||
-	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(31)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(31)) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(31)) < 0) {
 		dev_err(card->dev,
 			"architecture does not support 31bit PCI busmaster DMA\n");
 		pci_disable_device(pci);
--- a/sound/pci/als300.c
+++ b/sound/pci/als300.c
@@ -658,8 +658,8 @@ static int snd_als300_create(struct snd_
 	if ((err = pci_enable_device(pci)) < 0)
 		return err;
 
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
-		pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(28)) < 0 ||
+		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(28)) < 0) {
 		dev_err(card->dev, "error setting 28bit DMA mask\n");
 		pci_disable_device(pci);
 		return -ENXIO;
--- a/sound/pci/als4000.c
+++ b/sound/pci/als4000.c
@@ -871,8 +871,8 @@ static int snd_card_als4000_probe(struct
 		return err;
 	}
 	/* check, if we can restrict PCI DMA transfers to 24 bits */
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(24)) < 0 ||
-	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(24)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(24)) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(24)) < 0) {
 		dev_err(&pci->dev, "architecture does not support 24bit PCI busmaster DMA\n");
 		pci_disable_device(pci);
 		return -ENXIO;
--- a/sound/pci/au88x0/au88x0.c
+++ b/sound/pci/au88x0/au88x0.c
@@ -150,8 +150,8 @@ snd_vortex_create(struct snd_card *card,
 	// check PCI availability (DMA).
 	if ((err = pci_enable_device(pci)) < 0)
 		return err;
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 ||
-	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
 		dev_err(card->dev, "error to set DMA mask\n");
 		pci_disable_device(pci);
 		return -ENXIO;
--- a/sound/pci/aw2/aw2-alsa.c
+++ b/sound/pci/aw2/aw2-alsa.c
@@ -258,8 +258,8 @@ static int snd_aw2_create(struct snd_car
 	pci_set_master(pci);
 
 	/* check PCI availability (32bit DMA) */
-	if ((pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0) ||
-	    (pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0)) {
+	if ((dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) ||
+	    (dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0)) {
 		dev_err(card->dev, "Impossible to set 32bit mask DMA\n");
 		pci_disable_device(pci);
 		return -ENXIO;
--- a/sound/pci/azt3328.c
+++ b/sound/pci/azt3328.c
@@ -2420,8 +2420,8 @@ snd_azf3328_create(struct snd_card *card
 	chip->irq = -1;
 
 	/* check if we can restrict PCI DMA transfers to 24 bits */
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(24)) < 0 ||
-	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(24)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(24)) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(24)) < 0) {
 		dev_err(card->dev,
 			"architecture does not support 24bit PCI busmaster DMA\n"
 		);
--- a/sound/pci/ca0106/ca0106_main.c
+++ b/sound/pci/ca0106/ca0106_main.c
@@ -1676,8 +1676,8 @@ static int snd_ca0106_create(int dev, st
 	err = pci_enable_device(pci);
 	if (err < 0)
 		return err;
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 ||
-	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
 		dev_err(card->dev, "error to set 32bit mask DMA\n");
 		pci_disable_device(pci);
 		return -ENXIO;
--- a/sound/pci/cs5535audio/cs5535audio.c
+++ b/sound/pci/cs5535audio/cs5535audio.c
@@ -289,8 +289,8 @@ static int snd_cs5535audio_create(struct
 	if ((err = pci_enable_device(pci)) < 0)
 		return err;
 
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 ||
-	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
 		dev_warn(card->dev, "unable to get 32bit dma\n");
 		err = -ENXIO;
 		goto pcifail;
--- a/sound/pci/ctxfi/cthw20k1.c
+++ b/sound/pci/ctxfi/cthw20k1.c
@@ -1910,8 +1910,8 @@ static int hw_card_start(struct hw *hw)
 		return err;
 
 	/* Set DMA transfer mask */
-	if (pci_set_dma_mask(pci, CT_XFI_DMA_MASK) < 0 ||
-	    pci_set_consistent_dma_mask(pci, CT_XFI_DMA_MASK) < 0) {
+	if (dma_set_mask(&pci->dev, CT_XFI_DMA_MASK) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, CT_XFI_DMA_MASK) < 0) {
 		dev_err(hw->card->dev,
 			"architecture does not support PCI busmaster DMA with mask 0x%llx\n",
 			CT_XFI_DMA_MASK);
--- a/sound/pci/ctxfi/cthw20k2.c
+++ b/sound/pci/ctxfi/cthw20k2.c
@@ -2035,8 +2035,8 @@ static int hw_card_start(struct hw *hw)
 		return err;
 
 	/* Set DMA transfer mask */
-	if (pci_set_dma_mask(pci, CT_XFI_DMA_MASK) < 0 ||
-	    pci_set_consistent_dma_mask(pci, CT_XFI_DMA_MASK) < 0) {
+	if (dma_set_mask(&pci->dev, CT_XFI_DMA_MASK) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, CT_XFI_DMA_MASK) < 0) {
 		dev_err(hw->card->dev,
 			"architecture does not support PCI busmaster DMA with mask 0x%llx\n",
 			CT_XFI_DMA_MASK);
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -1904,8 +1904,8 @@ int snd_emu10k1_create(struct snd_card *
 
 	/* set the DMA transfer mask */
 	emu->dma_mask = is_audigy ? AUDIGY_DMA_MASK : EMU10K1_DMA_MASK;
-	if (pci_set_dma_mask(pci, emu->dma_mask) < 0 ||
-	    pci_set_consistent_dma_mask(pci, emu->dma_mask) < 0) {
+	if (dma_set_mask(&pci->dev, emu->dma_mask) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, emu->dma_mask) < 0) {
 		dev_err(card->dev,
 			"architecture does not support PCI busmaster DMA with mask 0x%lx\n",
 			emu->dma_mask);
--- a/sound/pci/es1938.c
+++ b/sound/pci/es1938.c
@@ -1580,8 +1580,8 @@ static int snd_es1938_create(struct snd_
 	if ((err = pci_enable_device(pci)) < 0)
 		return err;
         /* check, if we can restrict PCI DMA transfers to 24 bits */
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(24)) < 0 ||
-	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(24)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(24)) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(24)) < 0) {
 		dev_err(card->dev,
 			"architecture does not support 24bit PCI busmaster DMA\n");
 		pci_disable_device(pci);
--- a/sound/pci/es1968.c
+++ b/sound/pci/es1968.c
@@ -2689,8 +2689,8 @@ static int snd_es1968_create(struct snd_
 	if ((err = pci_enable_device(pci)) < 0)
 		return err;
 	/* check, if we can restrict PCI DMA transfers to 28 bits */
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
-	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(28)) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(28)) < 0) {
 		dev_err(card->dev,
 			"architecture does not support 28bit PCI busmaster DMA\n");
 		pci_disable_device(pci);
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1528,11 +1528,11 @@ static int azx_first_init(struct azx *ch
 	/* allow 64bit DMA address if supported by H/W */
 	if (!(gcap & AZX_GCAP_64OK))
 		dma_bits = 32;
-	if (!pci_set_dma_mask(pci, DMA_BIT_MASK(dma_bits))) {
-		pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(dma_bits));
+	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
+		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
 	} else {
-		pci_set_dma_mask(pci, DMA_BIT_MASK(32));
-		pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32));
+		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
+		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
 	}
 
 	/* read number of streams from GCAP register instead of using
--- a/sound/pci/ice1712/ice1712.c
+++ b/sound/pci/ice1712/ice1712.c
@@ -2530,8 +2530,8 @@ static int snd_ice1712_create(struct snd
 	if (err < 0)
 		return err;
 	/* check, if we can restrict PCI DMA transfers to 28 bits */
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
-	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(28)) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(28)) < 0) {
 		dev_err(card->dev,
 			"architecture does not support 28bit PCI busmaster DMA\n");
 		pci_disable_device(pci);
--- a/sound/pci/lx6464es/lx6464es.c
+++ b/sound/pci/lx6464es/lx6464es.c
@@ -981,7 +981,7 @@ static int snd_lx6464es_create(struct sn
 	pci_set_master(pci);
 
 	/* check if we can restrict PCI DMA transfers to 32 bits */
-	err = pci_set_dma_mask(pci, DMA_BIT_MASK(32));
+	err = dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
 	if (err < 0) {
 		dev_err(card->dev,
 			"architecture does not support 32bit PCI busmaster DMA\n");
--- a/sound/pci/maestro3.c
+++ b/sound/pci/maestro3.c
@@ -2537,8 +2537,8 @@ snd_m3_create(struct snd_card *card, str
 		return -EIO;
 
 	/* check, if we can restrict PCI DMA transfers to 28 bits */
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
-	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(28)) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(28)) < 0) {
 		dev_err(card->dev,
 			"architecture does not support 28bit PCI busmaster DMA\n");
 		pci_disable_device(pci);
--- a/sound/pci/mixart/mixart.c
+++ b/sound/pci/mixart/mixart.c
@@ -1269,7 +1269,7 @@ static int snd_mixart_probe(struct pci_d
 	pci_set_master(pci);
 
 	/* check if we can restrict PCI DMA transfers to 32 bits */
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
 		dev_err(&pci->dev,
 			"architecture does not support 32bit PCI busmaster DMA\n");
 		pci_disable_device(pci);
--- a/sound/pci/pcxhr/pcxhr.c
+++ b/sound/pci/pcxhr/pcxhr.c
@@ -1537,7 +1537,7 @@ static int pcxhr_probe(struct pci_dev *p
 	pci_set_master(pci);
 
 	/* check if we can restrict PCI DMA transfers to 32 bits */
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
 		dev_err(&pci->dev,
 			"architecture does not support 32bit PCI busmaster DMA\n");
 		pci_disable_device(pci);
--- a/sound/pci/sis7019.c
+++ b/sound/pci/sis7019.c
@@ -383,9 +383,9 @@ static void __sis_map_silence(struct sis
 {
 	/* Helper function: must hold sis->voice_lock on entry */
 	if (!sis->silence_users)
-		sis->silence_dma_addr = pci_map_single(sis->pci,
+		sis->silence_dma_addr = dma_map_single(&sis->pci->dev,
 						sis->suspend_state[0],
-						4096, PCI_DMA_TODEVICE);
+						4096, DMA_TO_DEVICE);
 	sis->silence_users++;
 }
 
@@ -394,8 +394,8 @@ static void __sis_unmap_silence(struct s
 	/* Helper function: must hold sis->voice_lock on entry */
 	sis->silence_users--;
 	if (!sis->silence_users)
-		pci_unmap_single(sis->pci, sis->silence_dma_addr, 4096,
-					PCI_DMA_TODEVICE);
+		dma_unmap_single(&sis->pci->dev, sis->silence_dma_addr, 4096,
+					DMA_TO_DEVICE);
 }
 
 static void sis_free_voice(struct sis7019 *sis, struct voice *voice)
@@ -1325,7 +1325,7 @@ static int sis_chip_create(struct snd_ca
 	if (rc)
 		goto error_out;
 
-	rc = pci_set_dma_mask(pci, DMA_BIT_MASK(30));
+	rc = dma_set_mask(&pci->dev, DMA_BIT_MASK(30));
 	if (rc < 0) {
 		dev_err(&pci->dev, "architecture does not support 30-bit PCI busmaster DMA");
 		goto error_out_enabled;
--- a/sound/pci/sonicvibes.c
+++ b/sound/pci/sonicvibes.c
@@ -1259,8 +1259,8 @@ static int snd_sonicvibes_create(struct
 	if ((err = pci_enable_device(pci)) < 0)
 		return err;
 	/* check, if we can restrict PCI DMA transfers to 24 bits */
-        if (pci_set_dma_mask(pci, DMA_BIT_MASK(24)) < 0 ||
-	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(24)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(24)) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(24)) < 0) {
 		dev_err(card->dev,
 			"architecture does not support 24bit PCI busmaster DMA\n");
 		pci_disable_device(pci);
--- a/sound/pci/trident/trident_main.c
+++ b/sound/pci/trident/trident_main.c
@@ -3551,8 +3551,8 @@ int snd_trident_create(struct snd_card *
 	if ((err = pci_enable_device(pci)) < 0)
 		return err;
 	/* check, if we can restrict PCI DMA transfers to 30 bits */
-	if (pci_set_dma_mask(pci, DMA_BIT_MASK(30)) < 0 ||
-	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(30)) < 0) {
+	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(30)) < 0 ||
+	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(30)) < 0) {
 		dev_err(card->dev,
 			"architecture does not support 30bit PCI busmaster DMA\n");
 		pci_disable_device(pci);
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Subject: [PATCH] parisc: Replace PT_NLEVELS with CONFIG_PGTABLE_LEVELS
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The following warning is seen when compiling parisc images

./arch/parisc/include/asm/pgalloc.h: In function 'pgd_alloc':
./arch/parisc/include/asm/pgalloc.h:29:5: warning: "PT_NLEVELS" is not defined

Some definitions of PT_NLEVELS were missed with the conversion to
CONFIG_PGTABLE_LEVELS.

Fixes: f24ffde43237 ("parisc: expose number of page table levels
	on Kconfig level")
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/parisc/include/asm/pgalloc.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index 1ba29369257c..3a08eae3318f 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -26,7 +26,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 
 	if (likely(pgd != NULL)) {
 		memset(pgd, 0, PAGE_SIZE<<PGD_ALLOC_ORDER);
-#if PT_NLEVELS == 3
+#if CONFIG_PGTABLE_LEVELS == 3
 		actual_pgd += PTRS_PER_PGD;
 		/* Populate first pmd with allocated memory.  We mark it
 		 * with PxD_FLAG_ATTACHED as a signal to the system that this
@@ -45,7 +45,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 
 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 {
-#if PT_NLEVELS == 3
+#if CONFIG_PGTABLE_LEVELS == 3
 	pgd -= PTRS_PER_PGD;
 #endif
 	free_pages((unsigned long)pgd, PGD_ALLOC_ORDER);
@@ -102,7 +102,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 static inline void
 pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
 {
-#if PT_NLEVELS == 3
+#if CONFIG_PGTABLE_LEVELS == 3
 	/* preserve the gateway marker if this is the beginning of
 	 * the permanent pmd */
 	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
-- 
2.1.0

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From - Thu Nov 08 21:37:26 2018
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From: Takashi Iwai <tiwai@suse.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.alsa.devel,gmane.linux.kernel,gmane.linux.kernel.janitors
Subject: Re: [PATCH] ALSA: remove deprecated use of pci api
Date: Thu, 16 Apr 2015 12:22:05 +0200
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Cc: Thibaut Varene <T-Bone@parisc-linux.org>,
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	linux-parisc@vger.kernel.org, alsa-devel@alsa-project.org,
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At Wed, 15 Apr 2015 16:10:17 +0200,
Quentin Lambert wrote:
> 
> Replace occurences of the pci api by appropriate call to the dma api.
> 
> A simplified version of the semantic patch that finds this problem is as
> follows: (http://coccinelle.lip6.fr)
> 
> @deprecated@
> idexpression id;
> position p;
> @@
> 
> (
>   pci_dma_supported@p ( id, ...)
> |
>   pci_alloc_consistent@p ( id, ...)
> )
> 
> @bad1@
> idexpression id;
> position deprecated.p;
> @@
> ...when != &id->dev
>    when != pci_get_drvdata ( id )
>    when != pci_enable_device ( id )
> (
>   pci_dma_supported@p ( id, ...)
> |
>   pci_alloc_consistent@p ( id, ...)
> )
> 
> @depends on !bad1@
> idexpression id;
> expression direction;
> position deprecated.p;
> @@
> 
> (
> - pci_dma_supported@p ( id,
> + dma_supported ( &id->dev,
> ...
> + , GFP_ATOMIC
>   )
> |
> - pci_alloc_consistent@p ( id,
> + dma_alloc_coherent ( &id->dev,
> ...
> + , GFP_ATOMIC
>   )
> )
> 
> Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com>

Thanks, applied to for-4.2 branch.


Takashi
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From: "Kirill A. Shutemov" <kirill@shutemov.name>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: Replace PT_NLEVELS with CONFIG_PGTABLE_LEVELS
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Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>,
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On Wed, Apr 15, 2015 at 01:34:28PM -0700, Guenter Roeck wrote:
> The following warning is seen when compiling parisc images
> 
> ./arch/parisc/include/asm/pgalloc.h: In function 'pgd_alloc':
> ./arch/parisc/include/asm/pgalloc.h:29:5: warning: "PT_NLEVELS" is not defined
> 
> Some definitions of PT_NLEVELS were missed with the conversion to
> CONFIG_PGTABLE_LEVELS.
> 
> Fixes: f24ffde43237 ("parisc: expose number of page table levels
> 	on Kconfig level")
> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>

-- 
 Kirill A. Shutemov
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From: Yijing Wang <wangyijing@huawei.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.pci,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.ports.parisc
Subject: [PATCH v10 22/29] parisc/PCI: Use pci_scan_root_bus() for simplicity
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Cc: Jiang Liu <jiang.liu@linux.intel.com>, <linux-pci@vger.kernel.org>,
	Yinghai Lu <yinghai@kernel.org>,
	<linux-kernel@vger.kernel.org>,
	Marc Zyngier <marc.zyngier@arm.com>,
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	"Yijing Wang" <wangyijing@huawei.com>,
	Yijing Wang <wangyijing0307@gmail.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	<linux-parisc@vger.ker
To: Bjorn Helgaas <bhelgaas@google.com>
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From: Yijing Wang <wangyijing0307@gmail.com>

Now pci_bus_add_devices() has been ripped out
from pci_scan_root_bus(), we could use pci_scan_root_bus()
instead of pci_create_root_bus() + pci_scan_child_bus()
for simplicity.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: linux-parisc@vger.kernel.org
---
 drivers/parisc/dino.c    |    6 +++---
 drivers/parisc/lba_pci.c |    5 +++--
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 56abc43..146c3ff 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -985,8 +985,8 @@ static int __init dino_probe(struct parisc_device *dev)
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev,
-			 0, &dino_cfg_ops, NULL, &resources);
+	dino_dev->hba.hba_bus = bus = pci_scan_root_bus(&dev->dev,
+			 0, dino_current_bus, &dino_cfg_ops, NULL, &resources);
 	if (!bus) {
 		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
 		       dev_name(&dev->dev), dino_current_bus);
@@ -996,7 +996,7 @@ static int __init dino_probe(struct parisc_device *dev)
 		return 0;
 	}
 
-	max = pci_scan_child_bus(bus);
+	max = pci_bus_child_max_busnr(bus);
 	pci_bus_update_busn_res_end(bus, max);
 
 	/* This code *depends* on scanning being single threaded
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 0b9ed96..24e42bf 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1563,13 +1563,14 @@ lba_driver_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = lba_dev;
 	lba_bus = lba_dev->hba.hba_bus =
-		pci_create_root_bus(&dev->dev, 0, cfg_ops, NULL, &resources);
+		pci_scan_root_bus(&dev->dev, 0, lba_dev->hba.bus_num.start,
+				cfg_ops, NULL, &resources);
 	if (!lba_bus) {
 		pci_free_resource_list(&resources);
 		return 0;
 	}
 
-	max = pci_scan_child_bus(lba_bus);
+	max = pci_bus_child_max_busnr(lba_bus);
 
 	/* This is in lieu of calling pci_assign_unassigned_resources() */
 	if (is_pdc_pat()) {
-- 
1.7.1


From - Thu Nov 08 21:37:27 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc fixes for v4.1
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Hi Linus,

Please pull two patches for kernel v4.1 for the parisc architecture from

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.1-1

The patch by Guenter Roeck fixes the build on parisc which got broken because
of commit f24ffde43237 (parisc: expose number of page table levels on Kconfig
level) and the patch from Matthew Wilcox converts our code to use the generic
scatterlist.h header file.
 
Thanks,
Helge

----------------------------------------------------------------
Guenter Roeck (1):
      parisc: Replace PT_NLEVELS with CONFIG_PGTABLE_LEVELS

Matthew Wilcox (1):
      parisc: Eliminate sg_virt_addr() and private scatterlist.h

 arch/parisc/include/asm/Kbuild        |  1 +
 arch/parisc/include/asm/pgalloc.h     |  6 +++---
 arch/parisc/include/asm/scatterlist.h | 10 ----------
 arch/parisc/kernel/pci-dma.c          |  8 ++++----
 drivers/parisc/ccio-dma.c             |  6 +++---
 drivers/parisc/iommu-helpers.h        | 26 ++++++++++++++------------
 drivers/parisc/sba_iommu.c            |  7 +++----
 7 files changed, 28 insertions(+), 36 deletions(-)
 delete mode 100644 arch/parisc/include/asm/scatterlist.h
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From - Thu Nov 08 21:37:27 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: 4.0 parisc regression: memory leak?
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I noticed that with 4.0 I'm running out of memory on HP A500 (1G RAM) 
and HP RP3410 (2G RAM) parisc machines during gentoo "revdep-rebuild 
-ip". Each time free shows less free memory until OOM killer visits us 
(and first revdep-rebuild after nontrivial emerge compilation loop kills 
the smaller box).

3.19 did not seem to have this problem.

Nothing in the dmesg besides OOM killer activating.

I reran it, leaving cat /prov/vmstat, cat /proc/meminfo and slabtop -o 
running in loop (each 5 s). revdep-rebuild -ip was also running in 
the loop, just checking the binaries and library linking info.

The results are at

http://kodu.ut.ee/~mroos/slabtop-log
http://kodu.ut.ee/~mroos/meminfo-log
http://kodu.ut.ee/~mroos/vmstat-log

Anything else I can provide to pinpoint it?

-- 
Meelis Roos (mroos@linux.ee)

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On 2015-04-25, at 3:19 PM, Meelis Roos wrote:

> I noticed that with 4.0 I'm running out of memory on HP A500 (1G RAM) 
> and HP RP3410 (2G RAM) parisc machines during gentoo "revdep-rebuild 
> -ip". Each time free shows less free memory until OOM killer visits us 
> (and first revdep-rebuild after nontrivial emerge compilation loop kills 
> the smaller box).

I've also had problems with 4.0.  I had HPMC after a few hours on rp3440.

> 
> 3.19 did not seem to have this problem.

--
John David Anglin	dave.anglin@bell.net



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> > I noticed that with 4.0 I'm running out of memory on HP A500 (1G RAM) 
> > and HP RP3410 (2G RAM) parisc machines during gentoo "revdep-rebuild 
> > -ip". Each time free shows less free memory until OOM killer visits us 
> > (and first revdep-rebuild after nontrivial emerge compilation loop kills 
> > the smaller box).
> 
> I've also had problems with 4.0.  I had HPMC after a few hours on rp3440.

My rp3440 worked fine for emerge world - maybe an hour or some hours. 
Because of 12G RAM, it did not run out of memory.

-- 
Meelis Roos (mroos@linux.ee)

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From: Kyrill Tkachov <kyrylo.tkachov@arm.com>
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Subject: Access to 64-bit hppa machine for GCC development
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Hello,

I'm working on FSF GCC and I have a patch that I may have to iterate over with the community
that may affect GCC for 64-bit hppa.

John David Anglin mentioned that I can apply for an account on a Debian parisc linux machine
to test GCC patches. Is it possible for me to get one?
I would use it to test patches for FSF GCC and would therefore need
the prerequisites for building GCC installed on that machine.

Thanks in advance,
Kyrill

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From - Thu Nov 08 21:37:27 2018
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Subject: Re: Access to 64-bit hppa machine for GCC development
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Kyrill Tkachov <kyrylo.tkachov <at> arm.com> writes:
> I'm working on FSF GCC and I have a patch that I may have to iterate over
with the community
> that may affect GCC for 64-bit hppa.
> 
> John David Anglin mentioned that I can apply for an account on a Debian
parisc linux machine
> to test GCC patches. Is it possible for me to get one?
> I would use it to test patches for FSF GCC and would therefore need
> the prerequisites for building GCC installed on that machine.

Sure, I'll send you a mail with login details in a few hours....
It would be important to mention, that hppa-linux is still on 32bit
userspace only.
gcc/linux-hppa64 is currently only used to build 64bit Linux kernels.

Helge


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From - Thu Nov 08 21:37:27 2018
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.scsi,gmane.linux.scsi.target.devel,gmane.linux.ports.parisc
Subject: Re: [PATCH] scatterlist: enable sg chaining for all architectures
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On Tue, 2015-04-28 at 14:27 -0700, Andrew Morton wrote:
> On Sat, 25 Apr 2015 23:56:16 +0900 Akinobu Mita <akinobu.mita@gmail.com> wrote:
> 
> > Some architectures enable sg chaining option while others do not.
> > 
> > The requirement to enable sg chaining is that pages must be aligned
> > at a 32-bit boundary in order to overload the LSB of the pointer.
> > Regardless of whether ARCH_HAS_SG_CHAIN is defined or not, the above
> > requirement is always chacked by BUG_ON() in sg_assign_page.  So
> > all architectures can enable sg chaining.
> > 
> > As you can see from the changes in drivers/target/target_core_rd.c,
> > enabling SG chaining for all architectures allows us to allocate
> > discontiguous scatterlist tables which can be traversed throughout
> > by sg_next() without a special handling for some architectures.
> 
> Thanks, I'll grab this.  If anyone has concerns, speak now or hold both
> pieces!

It breaks a host of architectures doesn't it?  I can specifically speak
for PARISC:  The problem is the way our iommus are consuming
scatterlists.  They're assuming we can dereference the scatterlist as an
array (like this code in ccio-dma.c):

static int
ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents, 
	    enum dma_data_direction direction)
[...]
	for(i = 0; i < nents; i++)
		prev_len += sglist[i].length;

If you turn on sg chaining on our architecture, we'll run off the end of
that array dereference and crash.

This can all be fixed by making our architecture dma mapping code use
iterators instead of array lists, but that needs more code than this
patch provides.  I assume there are similar issues on a lot of other
architectures, so before you can contemplate a patch like this, surely
all the architecture consumers have to be converted to iterator instead
of array format?

The first place to start would be a survey of who's still using the
array format.

James



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Newsgroups: gmane.linux.scsi.target.devel,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.scsi,gmane.linux.ports.parisc
Subject: Re: [PATCH] scatterlist: enable sg chaining for all architectures
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2015-04-29 7:16 GMT+09:00 James Bottomley
<James.Bottomley@hansenpartnership.com>:
> On Tue, 2015-04-28 at 14:27 -0700, Andrew Morton wrote:
>> On Sat, 25 Apr 2015 23:56:16 +0900 Akinobu Mita <akinobu.mita@gmail.com> wrote:
>>
>> > Some architectures enable sg chaining option while others do not.
>> >
>> > The requirement to enable sg chaining is that pages must be aligned
>> > at a 32-bit boundary in order to overload the LSB of the pointer.
>> > Regardless of whether ARCH_HAS_SG_CHAIN is defined or not, the above
>> > requirement is always chacked by BUG_ON() in sg_assign_page.  So
>> > all architectures can enable sg chaining.
>> >
>> > As you can see from the changes in drivers/target/target_core_rd.c,
>> > enabling SG chaining for all architectures allows us to allocate
>> > discontiguous scatterlist tables which can be traversed throughout
>> > by sg_next() without a special handling for some architectures.
>>
>> Thanks, I'll grab this.  If anyone has concerns, speak now or hold both
>> pieces!
>
> It breaks a host of architectures doesn't it?  I can specifically speak
> for PARISC:  The problem is the way our iommus are consuming
> scatterlists.  They're assuming we can dereference the scatterlist as an
> array (like this code in ccio-dma.c):
>
> static int
> ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
>             enum dma_data_direction direction)
> [...]
>         for(i = 0; i < nents; i++)
>                 prev_len += sglist[i].length;
>
> If you turn on sg chaining on our architecture, we'll run off the end of
> that array dereference and crash.
>
> This can all be fixed by making our architecture dma mapping code use
> iterators instead of array lists, but that needs more code than this
> patch provides.  I assume there are similar issues on a lot of other
> architectures, so before you can contemplate a patch like this, surely
> all the architecture consumers have to be converted to iterator instead
> of array format?
>
> The first place to start would be a survey of who's still using the
> array format.

Agreed.  I could find similar issues in arch/m68k/kernel/dma.c.
(git grep '[^a-z]sg++' shows that there are a lot of similar issues)

Andrew, could you drop this patch from -mm for now?

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Subject: Re: [PATCH] scatterlist: enable sg chaining for all architectures
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On Wed, 2015-04-29 at 09:34 +0900, Akinobu Mita wrote:
> 2015-04-29 7:16 GMT+09:00 James Bottomley
> <James.Bottomley@hansenpartnership.com>:
> > On Tue, 2015-04-28 at 14:27 -0700, Andrew Morton wrote:
> >> On Sat, 25 Apr 2015 23:56:16 +0900 Akinobu Mita <akinobu.mita@gmail.com> wrote:
> >>
> >> > Some architectures enable sg chaining option while others do not.
> >> >
> >> > The requirement to enable sg chaining is that pages must be aligned
> >> > at a 32-bit boundary in order to overload the LSB of the pointer.
> >> > Regardless of whether ARCH_HAS_SG_CHAIN is defined or not, the above
> >> > requirement is always chacked by BUG_ON() in sg_assign_page.  So
> >> > all architectures can enable sg chaining.
> >> >
> >> > As you can see from the changes in drivers/target/target_core_rd.c,
> >> > enabling SG chaining for all architectures allows us to allocate
> >> > discontiguous scatterlist tables which can be traversed throughout
> >> > by sg_next() without a special handling for some architectures.
> >>
> >> Thanks, I'll grab this.  If anyone has concerns, speak now or hold both
> >> pieces!
> >
> > It breaks a host of architectures doesn't it?  I can specifically speak
> > for PARISC:  The problem is the way our iommus are consuming
> > scatterlists.  They're assuming we can dereference the scatterlist as an
> > array (like this code in ccio-dma.c):
> >
> > static int
> > ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
> >             enum dma_data_direction direction)
> > [...]
> >         for(i = 0; i < nents; i++)
> >                 prev_len += sglist[i].length;
> >
> > If you turn on sg chaining on our architecture, we'll run off the end of
> > that array dereference and crash.
> >
> > This can all be fixed by making our architecture dma mapping code use
> > iterators instead of array lists, but that needs more code than this
> > patch provides.  I assume there are similar issues on a lot of other
> > architectures, so before you can contemplate a patch like this, surely
> > all the architecture consumers have to be converted to iterator instead
> > of array format?
> >
> > The first place to start would be a survey of who's still using the
> > array format.
> 
> Agreed.  I could find similar issues in arch/m68k/kernel/dma.c.
> (git grep '[^a-z]sg++' shows that there are a lot of similar issues)

OK, so the original idea of the chained SG lists was that most of the
older architectures have fixed length lists for their IOMMUs, or simply
wouldn't see a benefit with IO lengths > 0.5MB (which was the default
before chaining) so there wasn't much point converting them to chaining
if they wouldn't see any benefit from it.

ARCH_HAS_SG_CHAIN is supposed to be completely transparent to all driver
side consumers, so there was never thought to be much point removing it.
It looks like there's some sort of cockup going on in the target driver
but otherwise, your removal patch is pretty empty, confirming this.

Perhaps the best thing to do is just fix target and call it quits?

James



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On 04/29/2015 05:15 AM, James Bottomley wrote:
> 
> Perhaps the best thing to do is just fix target and call it quits?
> 

Right! drivers write code for sg_chaining and on ARCHs that do not
support it the code just works.
Only the max_sg is smaller and the chaining code never kicks in
and is dead code for these ARCHs.

> James

Cheers
Boaz


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On Tue, 2015-04-28 at 19:15 -0700, James Bottomley wrote:
> On Wed, 2015-04-29 at 09:34 +0900, Akinobu Mita wrote:
> > 2015-04-29 7:16 GMT+09:00 James Bottomley
> > <James.Bottomley@hansenpartnership.com>:
> > > On Tue, 2015-04-28 at 14:27 -0700, Andrew Morton wrote:
> > >> On Sat, 25 Apr 2015 23:56:16 +0900 Akinobu Mita <akinobu.mita@gmail.com> wrote:
> > >>
> > >> > Some architectures enable sg chaining option while others do not.
> > >> >
> > >> > The requirement to enable sg chaining is that pages must be aligned
> > >> > at a 32-bit boundary in order to overload the LSB of the pointer.
> > >> > Regardless of whether ARCH_HAS_SG_CHAIN is defined or not, the above
> > >> > requirement is always chacked by BUG_ON() in sg_assign_page.  So
> > >> > all architectures can enable sg chaining.
> > >> >
> > >> > As you can see from the changes in drivers/target/target_core_rd.c,
> > >> > enabling SG chaining for all architectures allows us to allocate
> > >> > discontiguous scatterlist tables which can be traversed throughout
> > >> > by sg_next() without a special handling for some architectures.
> > >>
> > >> Thanks, I'll grab this.  If anyone has concerns, speak now or hold both
> > >> pieces!
> > >
> > > It breaks a host of architectures doesn't it?  I can specifically speak
> > > for PARISC:  The problem is the way our iommus are consuming
> > > scatterlists.  They're assuming we can dereference the scatterlist as an
> > > array (like this code in ccio-dma.c):
> > >
> > > static int
> > > ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
> > >             enum dma_data_direction direction)
> > > [...]
> > >         for(i = 0; i < nents; i++)
> > >                 prev_len += sglist[i].length;
> > >
> > > If you turn on sg chaining on our architecture, we'll run off the end of
> > > that array dereference and crash.
> > >
> > > This can all be fixed by making our architecture dma mapping code use
> > > iterators instead of array lists, but that needs more code than this
> > > patch provides.  I assume there are similar issues on a lot of other
> > > architectures, so before you can contemplate a patch like this, surely
> > > all the architecture consumers have to be converted to iterator instead
> > > of array format?
> > >
> > > The first place to start would be a survey of who's still using the
> > > array format.
> > 
> > Agreed.  I could find similar issues in arch/m68k/kernel/dma.c.
> > (git grep '[^a-z]sg++' shows that there are a lot of similar issues)
> 
> OK, so the original idea of the chained SG lists was that most of the
> older architectures have fixed length lists for their IOMMUs, or simply
> wouldn't see a benefit with IO lengths > 0.5MB (which was the default
> before chaining) so there wasn't much point converting them to chaining
> if they wouldn't see any benefit from it.
> 
> ARCH_HAS_SG_CHAIN is supposed to be completely transparent to all driver
> side consumers, so there was never thought to be much point removing it.
> It looks like there's some sort of cockup going on in the target driver
> but otherwise, your removal patch is pretty empty, confirming this.
> 
> Perhaps the best thing to do is just fix target and call it quits?
> 

So the ARCH_HAS_SG_CHAIN usage in target_core_rd.c was recently added so
target DIF emulation could use standard SGL iterators and correctly
handle boundaries across T10-PI metadata SGL tables in the ramdisk
backend.

The SGLs in question are never actually mapped to a HW IOMMU, and
Akinobu's current changes in mainline do support both arch cases and
make common sbc_dif_copy_prot() code a bit simpler too.

That said, I'd rather to keep the hack around for now so that both
ARCH_HAS_SG_CHAIN types can still work, short of a full arch conversion
of course..

Thanks,

--nab


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Cc: Akinobu Mita <akinobu.mita@gmail.com>,
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On Thu, 2015-04-30 at 00:59 -0700, Nicholas A. Bellinger wrote:
> On Tue, 2015-04-28 at 19:15 -0700, James Bottomley wrote:
> > On Wed, 2015-04-29 at 09:34 +0900, Akinobu Mita wrote:
> > > 2015-04-29 7:16 GMT+09:00 James Bottomley
> > > <James.Bottomley@hansenpartnership.com>:
> > > > On Tue, 2015-04-28 at 14:27 -0700, Andrew Morton wrote:
> > > >> On Sat, 25 Apr 2015 23:56:16 +0900 Akinobu Mita <akinobu.mita@gmail.com> wrote:
> > > >>
> > > >> > Some architectures enable sg chaining option while others do not.
> > > >> >
> > > >> > The requirement to enable sg chaining is that pages must be aligned
> > > >> > at a 32-bit boundary in order to overload the LSB of the pointer.
> > > >> > Regardless of whether ARCH_HAS_SG_CHAIN is defined or not, the above
> > > >> > requirement is always chacked by BUG_ON() in sg_assign_page.  So
> > > >> > all architectures can enable sg chaining.
> > > >> >
> > > >> > As you can see from the changes in drivers/target/target_core_rd.c,
> > > >> > enabling SG chaining for all architectures allows us to allocate
> > > >> > discontiguous scatterlist tables which can be traversed throughout
> > > >> > by sg_next() without a special handling for some architectures.
> > > >>
> > > >> Thanks, I'll grab this.  If anyone has concerns, speak now or hold both
> > > >> pieces!
> > > >
> > > > It breaks a host of architectures doesn't it?  I can specifically speak
> > > > for PARISC:  The problem is the way our iommus are consuming
> > > > scatterlists.  They're assuming we can dereference the scatterlist as an
> > > > array (like this code in ccio-dma.c):
> > > >
> > > > static int
> > > > ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
> > > >             enum dma_data_direction direction)
> > > > [...]
> > > >         for(i = 0; i < nents; i++)
> > > >                 prev_len += sglist[i].length;
> > > >
> > > > If you turn on sg chaining on our architecture, we'll run off the end of
> > > > that array dereference and crash.
> > > >
> > > > This can all be fixed by making our architecture dma mapping code use
> > > > iterators instead of array lists, but that needs more code than this
> > > > patch provides.  I assume there are similar issues on a lot of other
> > > > architectures, so before you can contemplate a patch like this, surely
> > > > all the architecture consumers have to be converted to iterator instead
> > > > of array format?
> > > >
> > > > The first place to start would be a survey of who's still using the
> > > > array format.
> > > 
> > > Agreed.  I could find similar issues in arch/m68k/kernel/dma.c.
> > > (git grep '[^a-z]sg++' shows that there are a lot of similar issues)
> > 
> > OK, so the original idea of the chained SG lists was that most of the
> > older architectures have fixed length lists for their IOMMUs, or simply
> > wouldn't see a benefit with IO lengths > 0.5MB (which was the default
> > before chaining) so there wasn't much point converting them to chaining
> > if they wouldn't see any benefit from it.
> > 
> > ARCH_HAS_SG_CHAIN is supposed to be completely transparent to all driver
> > side consumers, so there was never thought to be much point removing it.
> > It looks like there's some sort of cockup going on in the target driver
> > but otherwise, your removal patch is pretty empty, confirming this.
> > 
> > Perhaps the best thing to do is just fix target and call it quits?
> > 
> 
> So the ARCH_HAS_SG_CHAIN usage in target_core_rd.c was recently added so
> target DIF emulation could use standard SGL iterators and correctly
> handle boundaries across T10-PI metadata SGL tables in the ramdisk
> backend.
>
> The SGLs in question are never actually mapped to a HW IOMMU, and
> Akinobu's current changes in mainline do support both arch cases and
> make common sbc_dif_copy_prot() code a bit simpler too.
> 
> That said, I'd rather to keep the hack around for now so that both
> ARCH_HAS_SG_CHAIN types can still work, short of a full arch conversion
> of course..

It looks like you might not have needed the hack if you'd used the
existing sg chain allocators ....

James



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From: Akinobu Mita <akinobu.mita@gmail.com>
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Subject: [PATCH v2 10/10] parisc: use for_each_sg()
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This replaces the plain loop over the sglist array with for_each_sg()
macro which consists of sg_next() function calls.  Since parisc doesn't
select ARCH_HAS_SG_CHAIN, it is not necessary to use for_each_sg() in
order to loop over each sg element.  But this can help find problems
with drivers that do not properly initialize their sg tables when
CONFIG_DEBUG_SG is enabled.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: linux-arch@vger.kernel.org
---
* New patch from v2

 arch/parisc/kernel/pci-dma.c | 27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index ff834fd..b9402c9 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -478,14 +478,16 @@ static void pa11_dma_unmap_single(struct device *dev, dma_addr_t dma_handle, siz
 static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
 {
 	int i;
+	struct scatterlist *sg;
 
 	BUG_ON(direction == DMA_NONE);
 
-	for (i = 0; i < nents; i++, sglist++ ) {
-		unsigned long vaddr = (unsigned long)sg_virt(sglist);
-		sg_dma_address(sglist) = (dma_addr_t) virt_to_phys(vaddr);
-		sg_dma_len(sglist) = sglist->length;
-		flush_kernel_dcache_range(vaddr, sglist->length);
+	for_each_sg(sglist, sg, nents, i) {
+		unsigned long vaddr = (unsigned long)sg_virt(sg);
+
+		sg_dma_address(sg) = (dma_addr_t) virt_to_phys(vaddr);
+		sg_dma_len(sg) = sg->length;
+		flush_kernel_dcache_range(vaddr, sg->length);
 	}
 	return nents;
 }
@@ -493,6 +495,7 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int n
 static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
 {
 	int i;
+	struct scatterlist *sg;
 
 	BUG_ON(direction == DMA_NONE);
 
@@ -501,8 +504,8 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, in
 
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
-	for (i = 0; i < nents; i++, sglist++ )
-		flush_kernel_vmap_range(sg_virt(sglist), sglist->length);
+	for_each_sg(sglist, sg, nents, i)
+		flush_kernel_vmap_range(sg_virt(sg), sg->length);
 	return;
 }
 
@@ -523,21 +526,23 @@ static void pa11_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_h
 static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
 {
 	int i;
+	struct scatterlist *sg;
 
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
-	for (i = 0; i < nents; i++, sglist++ )
-		flush_kernel_vmap_range(sg_virt(sglist), sglist->length);
+	for_each_sg(sglist, sg, nents, i)
+		flush_kernel_vmap_range(sg_virt(sg), sg->length);
 }
 
 static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
 {
 	int i;
+	struct scatterlist *sg;
 
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
-	for (i = 0; i < nents; i++, sglist++ )
-		flush_kernel_vmap_range(sg_virt(sglist), sglist->length);
+	for_each_sg(sglist, sg, nents, i)
+		flush_kernel_vmap_range(sg_virt(sg), sg->length);
 }
 
 struct hppa_dma_ops pcxl_dma_ops = {
-- 
1.9.1


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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/48371>

Introduce helper function irq_data_get_affinity_mask() and
irq_get_affinity_mask() to hide implementation details,
so we could move field 'affinity' from struct irq_data into
struct irq_common_data later.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
 arch/alpha/kernel/irq.c                   |    2 +-
 arch/arm/kernel/irq.c                     |    4 ++--
 arch/arm64/kernel/irq.c                   |    4 ++--
 arch/blackfin/mach-common/ints-priority.c |    3 ++-
 arch/ia64/kernel/iosapic.c                |    2 +-
 arch/ia64/kernel/irq.c                    |    6 +++---
 arch/ia64/kernel/msi_ia64.c               |    4 ++--
 arch/ia64/sn/kernel/msi_sn.c              |    2 +-
 arch/metag/kernel/irq.c                   |   10 ++++++----
 arch/mips/bcm63xx/irq.c                   |    2 +-
 arch/mips/cavium-octeon/octeon-irq.c      |   14 ++++++++------
 arch/mips/pmcs-msp71xx/msp_irq_cic.c      |    3 ++-
 arch/mn10300/kernel/cevt-mn10300.c        |    2 +-
 arch/mn10300/kernel/irq.c                 |   13 +++++++------
 arch/parisc/kernel/irq.c                  |   12 ++++++------
 arch/powerpc/kernel/irq.c                 |    2 +-
 arch/powerpc/sysdev/xics/ics-opal.c       |    2 +-
 arch/powerpc/sysdev/xics/ics-rtas.c       |    2 +-
 arch/sh/kernel/irq.c                      |    7 ++++---
 arch/sparc/kernel/irq_64.c                |   12 +++++++-----
 arch/sparc/kernel/leon_kernel.c           |    6 +++---
 arch/x86/kernel/apic/io_apic.c            |    2 +-
 arch/x86/kernel/apic/vector.c             |    5 ++---
 arch/x86/kernel/irq.c                     |    5 +++--
 arch/xtensa/kernel/irq.c                  |   10 ++++++----
 drivers/irqchip/irq-mips-gic.c            |    2 +-
 drivers/parisc/iosapic.c                  |    2 +-
 drivers/sh/intc/chip.c                    |    6 +++---
 drivers/xen/events/events_base.c          |    4 ++--
 include/linux/irq.h                       |   11 +++++++++++
 30 files changed, 92 insertions(+), 69 deletions(-)

diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index 7b2be251c30f..bd8e47699cad 100644
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -60,7 +60,7 @@ int irq_select_affinity(unsigned int irq)
 		cpu = (cpu < (NR_CPUS-1) ? cpu + 1 : 0);
 	last_cpu = cpu;
 
-	cpumask_copy(data->affinity, cpumask_of(cpu));
+	cpumask_copy(irq_data_get_affinity_mask(data), cpumask_of(cpu));
 	chip->irq_set_affinity(data, cpumask_of(cpu), false);
 	return 0;
 }
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 350f188c92d2..baf8edebe26f 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -140,7 +140,7 @@ int __init arch_probe_nr_irqs(void)
 static bool migrate_one_irq(struct irq_desc *desc)
 {
 	struct irq_data *d = irq_desc_get_irq_data(desc);
-	const struct cpumask *affinity = d->affinity;
+	const struct cpumask *affinity = irq_data_get_affinity_mask(d);
 	struct irq_chip *c;
 	bool ret = false;
 
@@ -160,7 +160,7 @@ static bool migrate_one_irq(struct irq_desc *desc)
 	if (!c->irq_set_affinity)
 		pr_debug("IRQ%u: unable to set affinity\n", d->irq);
 	else if (c->irq_set_affinity(d, affinity, false) == IRQ_SET_MASK_OK && ret)
-		cpumask_copy(d->affinity, affinity);
+		cpumask_copy(irq_data_get_affinity_mask(d), affinity);
 
 	return ret;
 }
diff --git a/arch/arm64/kernel/irq.c b/arch/arm64/kernel/irq.c
index 240b75c0e94f..463fa2e7e34c 100644
--- a/arch/arm64/kernel/irq.c
+++ b/arch/arm64/kernel/irq.c
@@ -61,7 +61,7 @@ void __init init_IRQ(void)
 static bool migrate_one_irq(struct irq_desc *desc)
 {
 	struct irq_data *d = irq_desc_get_irq_data(desc);
-	const struct cpumask *affinity = d->affinity;
+	const struct cpumask *affinity = irq_data_get_affinity_mask(d);
 	struct irq_chip *c;
 	bool ret = false;
 
@@ -81,7 +81,7 @@ static bool migrate_one_irq(struct irq_desc *desc)
 	if (!c->irq_set_affinity)
 		pr_debug("IRQ%u: unable to set affinity\n", d->irq);
 	else if (c->irq_set_affinity(d, affinity, false) == IRQ_SET_MASK_OK && ret)
-		cpumask_copy(d->affinity, affinity);
+		cpumask_copy(irq_data_get_affinity_mask(d), affinity);
 
 	return ret;
 }
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index 7236bdfc71e6..332a434b4669 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -194,7 +194,8 @@ void bfin_internal_unmask_irq(unsigned int irq)
 #ifdef CONFIG_SMP
 static void bfin_internal_unmask_irq_chip(struct irq_data *d)
 {
-	bfin_internal_unmask_irq_affinity(d->irq, d->affinity);
+	bfin_internal_unmask_irq_affinity(d->irq,
+					  irq_data_get_affinity_mask(d));
 }
 
 static int bfin_internal_set_affinity(struct irq_data *d,
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index bc9501e36e77..4d2698d43c39 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -838,7 +838,7 @@ iosapic_unregister_intr (unsigned int gsi)
 	if (iosapic_intr_info[irq].count == 0) {
 #ifdef CONFIG_SMP
 		/* Clear affinity */
-		cpumask_setall(irq_get_irq_data(irq)->affinity);
+		cpumask_setall(irq_get_affinity_mask(irq));
 #endif
 		/* Clear the interrupt information */
 		iosapic_intr_info[irq].dest = 0;
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index 812a1e6b3179..de4fc00dea98 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -67,7 +67,7 @@ static char irq_redir [NR_IRQS]; // = { [0 ... NR_IRQS-1] = 1 };
 void set_irq_affinity_info (unsigned int irq, int hwid, int redir)
 {
 	if (irq < NR_IRQS) {
-		cpumask_copy(irq_get_irq_data(irq)->affinity,
+		cpumask_copy(irq_get_affinity_mask(irq),
 			     cpumask_of(cpu_logical_id(hwid)));
 		irq_redir[irq] = (char) (redir & 0xff);
 	}
@@ -119,8 +119,8 @@ static void migrate_irqs(void)
 		if (irqd_is_per_cpu(data))
 			continue;
 
-		if (cpumask_any_and(data->affinity, cpu_online_mask)
-		    >= nr_cpu_ids) {
+		if (cpumask_any_and(irq_data_get_affinity_mask(data),
+				    cpu_online_mask) >= nr_cpu_ids) {
 			/*
 			 * Save it for phase 2 processing
 			 */
diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c
index d70bf15c690a..6c50d332b7d7 100644
--- a/arch/ia64/kernel/msi_ia64.c
+++ b/arch/ia64/kernel/msi_ia64.c
@@ -36,7 +36,7 @@ static int ia64_set_msi_irq_affinity(struct irq_data *idata,
 	msg.data = data;
 
 	pci_write_msi_msg(irq, &msg);
-	cpumask_copy(idata->affinity, cpumask_of(cpu));
+	cpumask_copy(irq_data_get_affinity_mask(idata), cpumask_of(cpu));
 
 	return 0;
 }
@@ -148,7 +148,7 @@ static int dmar_msi_set_affinity(struct irq_data *data,
 	msg.address_lo |= MSI_ADDR_DEST_ID_CPU(cpu_physical_id(cpu));
 
 	dmar_msi_write(irq, &msg);
-	cpumask_copy(data->affinity, mask);
+	cpumask_copy(irq_data_get_affinity_mask(data), mask);
 
 	return 0;
 }
diff --git a/arch/ia64/sn/kernel/msi_sn.c b/arch/ia64/sn/kernel/msi_sn.c
index a0eb27b66d13..42b5a13af142 100644
--- a/arch/ia64/sn/kernel/msi_sn.c
+++ b/arch/ia64/sn/kernel/msi_sn.c
@@ -206,7 +206,7 @@ static int sn_set_msi_irq_affinity(struct irq_data *data,
 	msg.address_lo = (u32)(bus_addr & 0x00000000ffffffff);
 
 	pci_write_msi_msg(irq, &msg);
-	cpumask_copy(data->affinity, cpu_mask);
+	cpumask_copy(irq_data_get_affinity_mask(data), cpu_mask);
 
 	return 0;
 }
diff --git a/arch/metag/kernel/irq.c b/arch/metag/kernel/irq.c
index 4f8f1f87ef11..a336094a7a6c 100644
--- a/arch/metag/kernel/irq.c
+++ b/arch/metag/kernel/irq.c
@@ -270,23 +270,25 @@ void migrate_irqs(void)
 
 	for_each_active_irq(i) {
 		struct irq_data *data = irq_get_irq_data(i);
+		struct cpumask *mask;
 		unsigned int newcpu;
 
 		if (irqd_is_per_cpu(data))
 			continue;
 
-		if (!cpumask_test_cpu(cpu, data->affinity))
+		mask = irq_data_get_affinity_mask(data);
+		if (!cpumask_test_cpu(cpu, mask))
 			continue;
 
-		newcpu = cpumask_any_and(data->affinity, cpu_online_mask);
+		newcpu = cpumask_any_and(mask, cpu_online_mask);
 
 		if (newcpu >= nr_cpu_ids) {
 			pr_info_ratelimited("IRQ%u no longer affine to CPU%u\n",
 					    i, cpu);
 
-			cpumask_setall(data->affinity);
+			cpumask_setall(mask);
 		}
-		irq_set_affinity(i, data->affinity);
+		irq_set_affinity(i, mask);
 	}
 }
 #endif /* CONFIG_HOTPLUG_CPU */
diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c
index e3e808a6c542..02983b90826d 100644
--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -60,7 +60,7 @@ static inline int enable_irq_for_cpu(int cpu, struct irq_data *d,
 	if (m)
 		enable &= cpumask_test_cpu(cpu, m);
 	else if (irqd_affinity_was_set(d))
-		enable &= cpumask_test_cpu(cpu, d->affinity);
+		enable &= cpumask_test_cpu(cpu, irq_data_get_affinity_mask(d));
 #endif
 	return enable;
 }
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index 10f762557b92..0643ae614284 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -225,13 +225,14 @@ static int next_cpu_for_irq(struct irq_data *data)
 
 #ifdef CONFIG_SMP
 	int cpu;
-	int weight = cpumask_weight(data->affinity);
+	struct cpumask *mask = irq_data_get_affinity_mask(data);
+	int weight = cpumask_weight(mask);
 	struct octeon_ciu_chip_data *cd = irq_data_get_irq_chip_data(data);
 
 	if (weight > 1) {
 		cpu = cd->current_cpu;
 		for (;;) {
-			cpu = cpumask_next(cpu, data->affinity);
+			cpu = cpumask_next(cpu, mask);
 			if (cpu >= nr_cpu_ids) {
 				cpu = -1;
 				continue;
@@ -240,7 +241,7 @@ static int next_cpu_for_irq(struct irq_data *data)
 			}
 		}
 	} else if (weight == 1) {
-		cpu = cpumask_first(data->affinity);
+		cpu = cpumask_first(mask);
 	} else {
 		cpu = smp_processor_id();
 	}
@@ -710,16 +711,17 @@ static void octeon_irq_cpu_offline_ciu(struct irq_data *data)
 {
 	int cpu = smp_processor_id();
 	cpumask_t new_affinity;
+	struct cpumask *mask = irq_data_get_affinity_mask(data);
 
-	if (!cpumask_test_cpu(cpu, data->affinity))
+	if (!cpumask_test_cpu(cpu, mask))
 		return;
 
-	if (cpumask_weight(data->affinity) > 1) {
+	if (cpumask_weight(mask) > 1) {
 		/*
 		 * It has multi CPU affinity, just remove this CPU
 		 * from the affinity set.
 		 */
-		cpumask_copy(&new_affinity, data->affinity);
+		cpumask_copy(&new_affinity, mask);
 		cpumask_clear_cpu(cpu, &new_affinity);
 	} else {
 		/* Otherwise, put it on lowest numbered online CPU. */
diff --git a/arch/mips/pmcs-msp71xx/msp_irq_cic.c b/arch/mips/pmcs-msp71xx/msp_irq_cic.c
index 1207ec4dfb77..8b9cf6463040 100644
--- a/arch/mips/pmcs-msp71xx/msp_irq_cic.c
+++ b/arch/mips/pmcs-msp71xx/msp_irq_cic.c
@@ -88,7 +88,8 @@ static void unmask_cic_irq(struct irq_data *d)
 	* Make sure we have IRQ affinity.  It may have changed while
 	* we were processing the IRQ.
 	*/
-	if (!cpumask_test_cpu(smp_processor_id(), d->affinity))
+	if (!cpumask_test_cpu(smp_processor_id(),
+			      irq_data_get_affinity_mask(d)))
 		return;
 #endif
 
diff --git a/arch/mn10300/kernel/cevt-mn10300.c b/arch/mn10300/kernel/cevt-mn10300.c
index 60f64ca1752a..326677d4a3b2 100644
--- a/arch/mn10300/kernel/cevt-mn10300.c
+++ b/arch/mn10300/kernel/cevt-mn10300.c
@@ -123,7 +123,7 @@ int __init init_clockevents(void)
 	{
 		struct irq_data *data;
 		data = irq_get_irq_data(cd->irq);
-		cpumask_copy(data->affinity, cpumask_of(cpu));
+		cpumask_copy(irq_data_get_affinity_mask(data), cpumask_of(cpu));
 		iact->flags |= IRQF_NOBALANCING;
 	}
 #endif
diff --git a/arch/mn10300/kernel/irq.c b/arch/mn10300/kernel/irq.c
index 480de70f4059..c716437baa2c 100644
--- a/arch/mn10300/kernel/irq.c
+++ b/arch/mn10300/kernel/irq.c
@@ -87,7 +87,8 @@ static void mn10300_cpupic_mask_ack(struct irq_data *d)
 		tmp2 = GxICR(irq);
 
 		irq_affinity_online[irq] =
-			cpumask_any_and(d->affinity, cpu_online_mask);
+			cpumask_any_and(irq_data_get_affinity_mask(d),
+					cpu_online_mask);
 		CROSS_GxICR(irq, irq_affinity_online[irq]) =
 			(tmp & (GxICR_LEVEL | GxICR_ENABLE)) | GxICR_DETECT;
 		tmp = CROSS_GxICR(irq, irq_affinity_online[irq]);
@@ -124,7 +125,7 @@ static void mn10300_cpupic_unmask_clear(struct irq_data *d)
 	} else {
 		tmp = GxICR(irq);
 
-		irq_affinity_online[irq] = cpumask_any_and(d->affinity,
+		irq_affinity_online[irq] = cpumask_any_and(irq_data_get_affinity_mask(d),
 							   cpu_online_mask);
 		CROSS_GxICR(irq, irq_affinity_online[irq]) = (tmp & GxICR_LEVEL) | GxICR_ENABLE | GxICR_DETECT;
 		tmp = CROSS_GxICR(irq, irq_affinity_online[irq]);
@@ -316,15 +317,16 @@ void migrate_irqs(void)
 	self = smp_processor_id();
 	for (irq = 0; irq < NR_IRQS; irq++) {
 		struct irq_data *data = irq_get_irq_data(irq);
+		struct cpumask *mask = irq_data_get_affinity_mask(data);
 
 		if (irqd_is_per_cpu(data))
 			continue;
 
-		if (cpumask_test_cpu(self, data->affinity) &&
+		if (cpumask_test_cpu(self, mask) &&
 		    !cpumask_intersects(&irq_affinity[irq], cpu_online_mask)) {
 			int cpu_id;
 			cpu_id = cpumask_first(cpu_online_mask);
-			cpumask_set_cpu(cpu_id, data->affinity);
+			cpumask_set_cpu(cpu_id, mask);
 		}
 		/* We need to operate irq_affinity_online atomically. */
 		arch_local_cli_save(flags);
@@ -335,8 +337,7 @@ void migrate_irqs(void)
 			GxICR(irq) = x & GxICR_LEVEL;
 			tmp = GxICR(irq);
 
-			new = cpumask_any_and(data->affinity,
-					      cpu_online_mask);
+			new = cpumask_any_and(mask, cpu_online_mask);
 			irq_affinity_online[irq] = new;
 
 			CROSS_GxICR(irq, new) =
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index f3191db6e2e9..413ec3c3f9cc 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -131,7 +131,7 @@ static int cpu_set_affinity_irq(struct irq_data *d, const struct cpumask *dest,
 	if (cpu_dest < 0)
 		return -1;
 
-	cpumask_copy(d->affinity, dest);
+	cpumask_copy(irq_data_get_affinity_mask(d), dest);
 
 	return 0;
 }
@@ -339,7 +339,7 @@ unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 {
 #ifdef CONFIG_SMP
 	struct irq_data *d = irq_get_irq_data(irq);
-	cpumask_copy(d->affinity, cpumask_of(cpu));
+	cpumask_copy(irq_data_get_affinity_mask(d), cpumask_of(cpu));
 #endif
 
 	return per_cpu(cpu_data, cpu).txn_addr;
@@ -508,7 +508,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	unsigned long eirr_val;
 	int irq, cpu = smp_processor_id();
 #ifdef CONFIG_SMP
-	struct irq_desc *desc;
+	struct irq_data *irq_data;
 	cpumask_t dest;
 #endif
 
@@ -522,9 +522,9 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	irq = eirr_to_irq(eirr_val);
 
 #ifdef CONFIG_SMP
-	desc = irq_to_desc(irq);
-	cpumask_copy(&dest, desc->irq_data.affinity);
-	if (irqd_is_per_cpu(&desc->irq_data) &&
+	irq_data = irq_get_irq_data(irq);
+	cpumask_copy(&dest, irq_data_get_affinity_mask(irq_data));
+	if (irqd_is_per_cpu(irq_data) &&
 	    !cpumask_test_cpu(smp_processor_id(), &dest)) {
 		int cpu = cpumask_first(&dest);
 
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 45096033d37b..290559df1e8b 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -441,7 +441,7 @@ void migrate_irqs(void)
 
 		chip = irq_data_get_irq_chip(data);
 
-		cpumask_and(mask, data->affinity, map);
+		cpumask_and(mask, irq_data_get_affinity_mask(data), map);
 		if (cpumask_any(mask) >= nr_cpu_ids) {
 			pr_warn("Breaking affinity for irq %i\n", irq);
 			cpumask_copy(mask, map);
diff --git a/arch/powerpc/sysdev/xics/ics-opal.c b/arch/powerpc/sysdev/xics/ics-opal.c
index 68c7e5cc98e0..3996393c254d 100644
--- a/arch/powerpc/sysdev/xics/ics-opal.c
+++ b/arch/powerpc/sysdev/xics/ics-opal.c
@@ -54,7 +54,7 @@ static void ics_opal_unmask_irq(struct irq_data *d)
 	if (hw_irq == XICS_IPI || hw_irq == XICS_IRQ_SPURIOUS)
 		return;
 
-	server = xics_get_irq_server(d->irq, d->affinity, 0);
+	server = xics_get_irq_server(d->irq, irq_data_get_affinity_mask(d), 0);
 	server = ics_opal_mangle_server(server);
 
 	rc = opal_set_xive(hw_irq, server, DEFAULT_PRIORITY);
diff --git a/arch/powerpc/sysdev/xics/ics-rtas.c b/arch/powerpc/sysdev/xics/ics-rtas.c
index 0af97deb83f3..e2665a9dfc0f 100644
--- a/arch/powerpc/sysdev/xics/ics-rtas.c
+++ b/arch/powerpc/sysdev/xics/ics-rtas.c
@@ -47,7 +47,7 @@ static void ics_rtas_unmask_irq(struct irq_data *d)
 	if (hw_irq == XICS_IPI || hw_irq == XICS_IRQ_SPURIOUS)
 		return;
 
-	server = xics_get_irq_server(d->irq, d->affinity, 0);
+	server = xics_get_irq_server(d->irq, irq_data_get_affinity_mask(d), 0);
 
 	call_status = rtas_call(ibm_set_xive, 3, 1, NULL, hw_irq, server,
 				DEFAULT_PRIORITY);
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 8dc677cc136b..6c0378c0b8b5 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -228,15 +228,16 @@ void migrate_irqs(void)
 		struct irq_data *data = irq_get_irq_data(irq);
 
 		if (irq_data_get_node(data) == cpu) {
-			unsigned int newcpu = cpumask_any_and(data->affinity,
+			struct cpumask *mask = irq_data_get_affinity_mask(data);
+			unsigned int newcpu = cpumask_any_and(mask,
 							      cpu_online_mask);
 			if (newcpu >= nr_cpu_ids) {
 				pr_info_ratelimited("IRQ%u no longer affine to CPU%u\n",
 						    irq, cpu);
 
-				cpumask_setall(data->affinity);
+				cpumask_setall(mask);
 			}
-			irq_set_affinity(irq, data->affinity);
+			irq_set_affinity(irq, mask);
 		}
 	}
 }
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index 5130f6e3e68e..e22416ce56ea 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -377,7 +377,8 @@ static void sun4u_irq_enable(struct irq_data *data)
 		unsigned long cpuid, imap, val;
 		unsigned int tid;
 
-		cpuid = irq_choose_cpu(data->irq, data->affinity);
+		cpuid = irq_choose_cpu(data->irq,
+				       irq_data_get_affinity_mask(data));
 		imap = handler_data->imap;
 
 		tid = sun4u_compute_tid(imap, cpuid);
@@ -449,7 +450,8 @@ static void sun4u_irq_eoi(struct irq_data *data)
 
 static void sun4v_irq_enable(struct irq_data *data)
 {
-	unsigned long cpuid = irq_choose_cpu(data->irq, data->affinity);
+	unsigned long cpuid = irq_choose_cpu(data->irq,
+					     irq_data_get_affinity_mask(data));
 	unsigned int ino = irq_data_to_sysino(data);
 	int err;
 
@@ -511,7 +513,7 @@ static void sun4v_virq_enable(struct irq_data *data)
 	unsigned long cpuid;
 	int err;
 
-	cpuid = irq_choose_cpu(data->irq, data->affinity);
+	cpuid = irq_choose_cpu(data->irq, irq_data_get_affinity_mask(data));
 
 	err = sun4v_vintr_set_target(dev_handle, dev_ino, cpuid);
 	if (err != HV_EOK)
@@ -884,8 +886,8 @@ void fixup_irqs(void)
 		if (desc->action && !irqd_is_per_cpu(data)) {
 			if (data->chip->irq_set_affinity)
 				data->chip->irq_set_affinity(data,
-							     data->affinity,
-							     false);
+					irq_data_get_affinity_mask(data),
+					false);
 		}
 		raw_spin_unlock_irqrestore(&desc->lock, flags);
 	}
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index 9bbb8f2bbfcc..0299f052a2ef 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -126,7 +126,7 @@ static int leon_set_affinity(struct irq_data *data, const struct cpumask *dest,
 	int oldcpu, newcpu;
 
 	mask = (unsigned long)data->chip_data;
-	oldcpu = irq_choose_cpu(data->affinity);
+	oldcpu = irq_choose_cpu(irq_data_get_affinity_mask(data));
 	newcpu = irq_choose_cpu(dest);
 
 	if (oldcpu == newcpu)
@@ -149,7 +149,7 @@ static void leon_unmask_irq(struct irq_data *data)
 	int cpu;
 
 	mask = (unsigned long)data->chip_data;
-	cpu = irq_choose_cpu(data->affinity);
+	cpu = irq_choose_cpu(irq_data_get_affinity_mask(data));
 	spin_lock_irqsave(&leon_irq_lock, flags);
 	oldmask = LEON3_BYPASS_LOAD_PA(LEON_IMASK(cpu));
 	LEON3_BYPASS_STORE_PA(LEON_IMASK(cpu), (oldmask | mask));
@@ -162,7 +162,7 @@ static void leon_mask_irq(struct irq_data *data)
 	int cpu;
 
 	mask = (unsigned long)data->chip_data;
-	cpu = irq_choose_cpu(data->affinity);
+	cpu = irq_choose_cpu(irq_data_get_affinity_mask(data));
 	spin_lock_irqsave(&leon_irq_lock, flags);
 	oldmask = LEON3_BYPASS_LOAD_PA(LEON_IMASK(cpu));
 	LEON3_BYPASS_STORE_PA(LEON_IMASK(cpu), (oldmask & ~mask));
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 845dc0df2002..09921de4210f 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2541,7 +2541,7 @@ void __init setup_ioapic_dest(void)
 		 * Honour affinities which have been set in early boot
 		 */
 		if (!irqd_can_balance(idata) || irqd_affinity_was_set(idata))
-			mask = idata->affinity;
+			mask = irq_data_get_affinity_mask(idata);
 		else
 			mask = apic->target_cpus();
 
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 983bea2a09ce..c488d8b5d50b 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -546,9 +546,8 @@ static int apic_set_affinity(struct irq_data *irq_data,
 
 	err = assign_irq_vector(irq, data, dest);
 	if (err) {
-		struct irq_data *top = irq_get_irq_data(irq);
-
-		if (assign_irq_vector(irq, data, top->affinity))
+		if (assign_irq_vector(irq, data,
+				      irq_data_get_affinity_mask(irq_data)))
 			pr_err("Failed to recover vector for irq %d\n", irq);
 		return err;
 	}
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index e5952c225532..f5d9cc16399c 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -306,7 +306,8 @@ int check_irq_vectors_for_cpu_disable(void)
 				continue;
 
 			data = irq_desc_get_irq_data(desc);
-			cpumask_copy(&affinity_new, data->affinity);
+			cpumask_copy(&affinity_new,
+				     irq_data_get_affinity_mask(data));
 			cpumask_clear_cpu(this_cpu, &affinity_new);
 
 			/* Do not count inactive or per-cpu irqs. */
@@ -384,7 +385,7 @@ void fixup_irqs(void)
 		raw_spin_lock(&desc->lock);
 
 		data = irq_desc_get_irq_data(desc);
-		affinity = data->affinity;
+		affinity = irq_data_get_affinity_mask(data);
 		if (!irq_has_action(irq) || irqd_is_per_cpu(data) ||
 		    cpumask_subset(affinity, cpu_online_mask)) {
 			raw_spin_unlock(&desc->lock);
diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
index 3eee94f621eb..d7b5a4c8ae5d 100644
--- a/arch/xtensa/kernel/irq.c
+++ b/arch/xtensa/kernel/irq.c
@@ -166,23 +166,25 @@ void migrate_irqs(void)
 
 	for_each_active_irq(i) {
 		struct irq_data *data = irq_get_irq_data(i);
+		struct cpumask *mask;
 		unsigned int newcpu;
 
 		if (irqd_is_per_cpu(data))
 			continue;
 
-		if (!cpumask_test_cpu(cpu, data->affinity))
+		mask = irq_data_get_affinity_mask(data);
+		if (!cpumask_test_cpu(cpu, mask))
 			continue;
 
-		newcpu = cpumask_any_and(data->affinity, cpu_online_mask);
+		newcpu = cpumask_any_and(mask, cpu_online_mask);
 
 		if (newcpu >= nr_cpu_ids) {
 			pr_info_ratelimited("IRQ%u no longer affine to CPU%u\n",
 					    i, cpu);
 
-			cpumask_setall(data->affinity);
+			cpumask_setall(mask);
 		}
-		irq_set_affinity(i, data->affinity);
+		irq_set_affinity(i, mask);
 	}
 }
 #endif /* CONFIG_HOTPLUG_CPU */
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index 57f09cb54464..09257c301bd2 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -403,7 +403,7 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *cpumask,
 		clear_bit(irq, pcpu_masks[i].pcpu_mask);
 	set_bit(irq, pcpu_masks[cpumask_first(&tmp)].pcpu_mask);
 
-	cpumask_copy(d->affinity, cpumask);
+	cpumask_copy(irq_data_get_affinity_mask(d), cpumask);
 	spin_unlock_irqrestore(&gic_lock, flags);
 
 	return IRQ_SET_MASK_OK_NOCOPY;
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 9ee04b4b68bf..144c77dfe4b1 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -691,7 +691,7 @@ static int iosapic_set_affinity_irq(struct irq_data *d,
 	if (dest_cpu < 0)
 		return -1;
 
-	cpumask_copy(d->affinity, cpumask_of(dest_cpu));
+	cpumask_copy(irq_data_get_affinity_mask(d), cpumask_of(dest_cpu));
 	vi->txn_addr = txn_affinity_addr(d->irq, dest_cpu);
 
 	spin_lock_irqsave(&iosapic_lock, flags);
diff --git a/drivers/sh/intc/chip.c b/drivers/sh/intc/chip.c
index 46427b48e2f1..358df7510186 100644
--- a/drivers/sh/intc/chip.c
+++ b/drivers/sh/intc/chip.c
@@ -22,7 +22,7 @@ void _intc_enable(struct irq_data *data, unsigned long handle)
 
 	for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_E(handle)); cpu++) {
 #ifdef CONFIG_SMP
-		if (!cpumask_test_cpu(cpu, data->affinity))
+		if (!cpumask_test_cpu(cpu, irq_data_get_affinity_mask(data)))
 			continue;
 #endif
 		addr = INTC_REG(d, _INTC_ADDR_E(handle), cpu);
@@ -50,7 +50,7 @@ static void intc_disable(struct irq_data *data)
 
 	for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_D(handle)); cpu++) {
 #ifdef CONFIG_SMP
-		if (!cpumask_test_cpu(cpu, data->affinity))
+		if (!cpumask_test_cpu(cpu, irq_data_get_affinity_mask(data)))
 			continue;
 #endif
 		addr = INTC_REG(d, _INTC_ADDR_D(handle), cpu);
@@ -72,7 +72,7 @@ static int intc_set_affinity(struct irq_data *data,
 	if (!cpumask_intersects(cpumask, cpu_online_mask))
 		return -1;
 
-	cpumask_copy(data->affinity, cpumask);
+	cpumask_copy(irq_data_get_affinity_mask(data), cpumask);
 
 	return IRQ_SET_MASK_OK_NOCOPY;
 }
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 70fba973a107..b472ce6b7ad3 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -336,7 +336,7 @@ static void bind_evtchn_to_cpu(unsigned int chn, unsigned int cpu)
 
 	BUG_ON(irq == -1);
 #ifdef CONFIG_SMP
-	cpumask_copy(irq_get_irq_data(irq)->affinity, cpumask_of(cpu));
+	cpumask_copy(irq_get_affinity_mask(irq), cpumask_of(cpu));
 #endif
 	xen_evtchn_port_bind_to_cpu(info, cpu);
 
@@ -373,7 +373,7 @@ static void xen_irq_init(unsigned irq)
 	struct irq_info *info;
 #ifdef CONFIG_SMP
 	/* By default all event channels notify CPU#0. */
-	cpumask_copy(irq_get_irq_data(irq)->affinity, cpumask_of(0));
+	cpumask_copy(irq_get_affinity_mask(irq), cpumask_of(0));
 #endif
 
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 43581e166298..cf386d97b96d 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -650,6 +650,17 @@ static inline int irq_data_get_node(struct irq_data *d)
 	return irq_common_data_get_node(d->common);
 }
 
+static inline struct cpumask *irq_get_affinity_mask(int irq)
+{
+	struct irq_data *d = irq_get_irq_data(irq);
+	return d ? d->affinity : NULL;
+}
+
+static inline struct cpumask *irq_data_get_affinity_mask(struct irq_data *d)
+{
+	return d->affinity;
+}
+
 unsigned int arch_dynirq_lower_bound(unsigned int from);
 
 int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node,
-- 
1.7.10.4




From - Thu Nov 08 21:37:28 2018
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From - Thu Nov 08 21:37:28 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH 0/3] Allow user to request memory to be locked on page fault
Date: Fri,  8 May 2015 15:33:43 -0400
Lines: 73
Approved: news@gmane.org
Message-ID: <1431113626-19153-1-git-send-email-emunson@akamai.com>
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Cc: Eric B Munson <emunson@akamai.com>,
	Shuah Khan <shuahkh@osg.samsung.com>,
	linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mips@linux-mips.org, linux-parisc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org,
	linux-xtensa@linux-xtensa.org, linux-mm@kvack.org,
	linux-arch@vger.kernel.org, linux-api@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
Original-X-From: linux-alpha-owner@vger.kernel.org Fri May 08 21:34:07 2015
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/3062>

mlock() allows a user to control page out of program memory, but this
comes at the cost of faulting in the entire mapping when it is
allocated.  For large mappings where the entire area is not necessary
this is not ideal.

This series introduces new flags for mmap() and mlockall() that allow a
user to specify that the covered are should not be paged out, but only
after the memory has been used the first time.

The performance cost of these patches are minimal on the two benchmarks
I have tested (stream and kernbench).

Avg throughput in MB/s from stream using 1000000 element arrays
Test     4.1-rc2      4.1-rc2+lock-on-fault
Copy:    10,979.08    10,917.34
Scale:   11,094.45    11,023.01
Add:     12,487.29    12,388.65
Triad:   12,505.77    12,418.78

Kernbench optimal load
                 4.1-rc2  4.1-rc2+lock-on-fault
Elapsed Time     71.046   71.324
User Time        62.117   62.352
System Time      8.926    8.969
Context Switches 14531.9  14542.5
Sleeps           14935.9  14939

Eric B Munson (3):
  Add flag to request pages are locked after page fault
  Add mlockall flag for locking pages on fault
  Add tests for lock on fault

 arch/alpha/include/uapi/asm/mman.h          |   2 +
 arch/mips/include/uapi/asm/mman.h           |   2 +
 arch/parisc/include/uapi/asm/mman.h         |   2 +
 arch/powerpc/include/uapi/asm/mman.h        |   2 +
 arch/sparc/include/uapi/asm/mman.h          |   2 +
 arch/tile/include/uapi/asm/mman.h           |   2 +
 arch/xtensa/include/uapi/asm/mman.h         |   2 +
 include/linux/mm.h                          |   1 +
 include/linux/mman.h                        |   3 +-
 include/uapi/asm-generic/mman.h             |   2 +
 mm/mlock.c                                  |  13 ++-
 mm/mmap.c                                   |   4 +-
 mm/swap.c                                   |   3 +-
 tools/testing/selftests/vm/Makefile         |   8 +-
 tools/testing/selftests/vm/lock-on-fault.c  | 145 ++++++++++++++++++++++++++++
 tools/testing/selftests/vm/on-fault-limit.c |  47 +++++++++
 tools/testing/selftests/vm/run_vmtests      |  23 +++++
 17 files changed, 254 insertions(+), 9 deletions(-)
 create mode 100644 tools/testing/selftests/vm/lock-on-fault.c
 create mode 100644 tools/testing/selftests/vm/on-fault-limit.c

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org

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From - Thu Nov 08 21:37:29 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.api
Subject: [PATCH 1/3] Add flag to request pages are locked after page fault
Date: Fri,  8 May 2015 15:33:44 -0400
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/27564>

The cost of faulting in all memory to be locked can be very high when
working with large mappings.  If only portions of the mapping will be
used this can incur a high penalty for locking.  This patch introduces
the ability to request that pages are not pre-faulted, but are placed on
the unevictable LRU when they are finally faulted in.

To keep accounting checks out of the page fault path, users are billed
for the entire mapping lock as if MAP_LOCKED was used.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
---
 arch/alpha/include/uapi/asm/mman.h   | 1 +
 arch/mips/include/uapi/asm/mman.h    | 1 +
 arch/parisc/include/uapi/asm/mman.h  | 1 +
 arch/powerpc/include/uapi/asm/mman.h | 1 +
 arch/sparc/include/uapi/asm/mman.h   | 1 +
 arch/tile/include/uapi/asm/mman.h    | 1 +
 arch/xtensa/include/uapi/asm/mman.h  | 1 +
 include/linux/mm.h                   | 1 +
 include/linux/mman.h                 | 3 ++-
 include/uapi/asm-generic/mman.h      | 1 +
 mm/mmap.c                            | 4 ++--
 mm/swap.c                            | 3 ++-
 12 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..15e96e1 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -30,6 +30,7 @@
 #define MAP_NONBLOCK	0x40000		/* do not block on IO */
 #define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x200000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_SYNC		2		/* synchronous memory sync */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..47846a5 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -48,6 +48,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 /*
  * Flags for msync
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..1514cd7 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -24,6 +24,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_SYNC		1		/* synchronous memory sync */
 #define MS_ASYNC	2		/* sync memory asynchronously */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 6ea26df..fce74fe 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -27,5 +27,6 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 #endif /* _UAPI_ASM_POWERPC_MMAN_H */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 0b14df3..12425d8 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -22,6 +22,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 
 #endif /* _UAPI__SPARC_MMAN_H__ */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index 81b8fc3..ec04eaf 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -29,6 +29,7 @@
 #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
 #define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
 #define MAP_HUGETLB	0x4000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x8000		/* Lock pages after they are faulted in, do not prefault */
 
 
 /*
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..42d43cc 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -55,6 +55,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 #ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
 # define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be
 					 * uninitialized */
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0755b9f..3e31457 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -126,6 +126,7 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_PFNMAP	0x00000400	/* Page-ranges managed without "struct page", just pure PFN */
 #define VM_DENYWRITE	0x00000800	/* ETXTBSY on write attempts.. */
 
+#define VM_LOCKONFAULT	0x00001000	/* Lock the pages covered when they are faulted in */
 #define VM_LOCKED	0x00002000
 #define VM_IO           0x00004000	/* Memory mapped I/O or similar */
 
diff --git a/include/linux/mman.h b/include/linux/mman.h
index 16373c8..437264b 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -86,7 +86,8 @@ calc_vm_flag_bits(unsigned long flags)
 {
 	return _calc_vm_trans(flags, MAP_GROWSDOWN,  VM_GROWSDOWN ) |
 	       _calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
-	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    );
+	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    ) |
+	       _calc_vm_trans(flags, MAP_LOCKONFAULT,VM_LOCKONFAULT);
 }
 
 unsigned long vm_commit_limit(void);
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index e9fe6fd..fc4e586 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -12,6 +12,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 /* Bits [26:31] are reserved, see mman-common.h for MAP_HUGETLB usage */
 
diff --git a/mm/mmap.c b/mm/mmap.c
index bb50cac..ba1a6bf 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1233,7 +1233,7 @@ static inline int mlock_future_check(struct mm_struct *mm,
 	unsigned long locked, lock_limit;
 
 	/*  mlock MCL_FUTURE? */
-	if (flags & VM_LOCKED) {
+	if (flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 		locked = len >> PAGE_SHIFT;
 		locked += mm->locked_vm;
 		lock_limit = rlimit(RLIMIT_MEMLOCK);
@@ -1301,7 +1301,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 	vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
 			mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
 
-	if (flags & MAP_LOCKED)
+	if (flags & (MAP_LOCKED | MAP_LOCKONFAULT))
 		if (!can_do_mlock())
 			return -EPERM;
 
diff --git a/mm/swap.c b/mm/swap.c
index a7251a8..07c905e 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -711,7 +711,8 @@ void lru_cache_add_active_or_unevictable(struct page *page,
 {
 	VM_BUG_ON_PAGE(PageLRU(page), page);
 
-	if (likely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) != VM_LOCKED)) {
+	if (likely((vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) == 0) ||
+		   (vma->vm_flags & VM_SPECIAL)) {
 		SetPageActive(page);
 		lru_cache_add(page);
 		return;
-- 
1.9.1


From - Thu Nov 08 21:37:29 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api,gmane.linux.kernel.mm
Subject: [PATCH 2/3] Add mlockall flag for locking pages on fault
Date: Fri,  8 May 2015 15:33:45 -0400
Lines: 168
Approved: news@gmane.org
Message-ID: <1431113626-19153-3-git-send-email-emunson@akamai.com>
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Cc: Eric B Munson <emunson@akamai.com>, linux-alpha@vger.kernel.org,
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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1949135>

Building on the previous patch, extend mlockall() to give a process a
way to specify that pages should be locked when they are faulted in, but
that pre-faulting is not needed.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
Cc: linux-mm@kvack.org
---
 arch/alpha/include/uapi/asm/mman.h   |  1 +
 arch/mips/include/uapi/asm/mman.h    |  1 +
 arch/parisc/include/uapi/asm/mman.h  |  1 +
 arch/powerpc/include/uapi/asm/mman.h |  1 +
 arch/sparc/include/uapi/asm/mman.h   |  1 +
 arch/tile/include/uapi/asm/mman.h    |  1 +
 arch/xtensa/include/uapi/asm/mman.h  |  1 +
 include/uapi/asm-generic/mman.h      |  1 +
 mm/mlock.c                           | 13 +++++++++----
 9 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 15e96e1..3120dfb 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -38,6 +38,7 @@
 
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
+#define MCL_ON_FAULT	32768		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 47846a5..82aec3c 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -62,6 +62,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ON_FAULT	4		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 1514cd7..f4601f3 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -32,6 +32,7 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ON_FAULT	4		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index fce74fe..0a28efc 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -22,6 +22,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ON_FAULT	0x80000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 12425d8..119be80 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -17,6 +17,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ON_FAULT	0x80000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index ec04eaf..66ea935 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -37,6 +37,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ON_FAULT	4		/* lock all pages that are faulted in */
 
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 42d43cc..9abcc29 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -75,6 +75,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ON_FAULT	4		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index fc4e586..6ac7a7b 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -18,5 +18,6 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ON_FAULT	4		/* lock all pages that are faulted in */
 
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/mm/mlock.c b/mm/mlock.c
index 6fd2cf1..1406835 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -579,7 +579,7 @@ static int do_mlock(unsigned long start, size_t len, int on)
 
 		/* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
+		newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
 		if (on)
 			newflags |= VM_LOCKED;
 
@@ -662,13 +662,17 @@ static int do_mlockall(int flags)
 		current->mm->def_flags |= VM_LOCKED;
 	else
 		current->mm->def_flags &= ~VM_LOCKED;
-	if (flags == MCL_FUTURE)
+	if (flags & MCL_ON_FAULT)
+		current->mm->def_flags |= VM_LOCKONFAULT;
+	else
+		current->mm->def_flags &= ~VM_LOCKONFAULT;
+	if (flags == MCL_FUTURE || flags == MCL_ON_FAULT)
 		goto out;
 
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
+		newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
 		if (flags & MCL_CURRENT)
 			newflags |= VM_LOCKED;
 
@@ -685,7 +689,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	unsigned long lock_limit;
 	int ret = -EINVAL;
 
-	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
+	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ON_FAULT)) ||
+	    ((flags & MCL_FUTURE) && (flags & MCL_ON_FAULT)))
 		goto out;
 
 	ret = -EPERM;
-- 
1.9.1


From - Thu Nov 08 21:37:29 2018
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From: Andrew Morton <akpm@linux-foundation.org>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
 fault
Date: Fri, 8 May 2015 12:42:03 -0700
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Cc: Shuah Khan <shuahkh@osg.samsung.com>, linux-alpha@vger.kernel.org,
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To: Eric B Munson <emunson@akamai.com>
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On Fri,  8 May 2015 15:33:43 -0400 Eric B Munson <emunson@akamai.com> wrote:

> mlock() allows a user to control page out of program memory, but this
> comes at the cost of faulting in the entire mapping when it is
> allocated.  For large mappings where the entire area is not necessary
> this is not ideal.
> 
> This series introduces new flags for mmap() and mlockall() that allow a
> user to specify that the covered are should not be paged out, but only
> after the memory has been used the first time.

Please tell us much much more about the value of these changes: the use
cases, the behavioural improvements and performance results which the
patchset brings to those use cases, etc.

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Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
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To: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
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On Fri, 08 May 2015, Andrew Morton wrote:

> On Fri,  8 May 2015 15:33:43 -0400 Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org> wro=
te:
>=20
> > mlock() allows a user to control page out of program memory, but this
> > comes at the cost of faulting in the entire mapping when it is
> > allocated.  For large mappings where the entire area is not necessary
> > this is not ideal.
> >=20
> > This series introduces new flags for mmap() and mlockall() that allow a
> > user to specify that the covered are should not be paged out, but only
> > after the memory has been used the first time.
>=20
> Please tell us much much more about the value of these changes: the use
> cases, the behavioural improvements and performance results which the
> patchset brings to those use cases, etc.
>=20

The primary use case is for mmaping large files read only.  The process
knows that some of the data is necessary, but it is unlikely that the
entire file will be needed.  The developer only wants to pay the cost to
read the data in once.  Unfortunately developer must choose between
allowing the kernel to page in the memory as needed and guaranteeing
that the data will only be read from disk once.  The first option runs
the risk of having the memory reclaimed if the system is under memory
pressure, the second forces the memory usage and startup delay when
faulting in the entire file.

I am working on getting startup times with and without this change for
an application, I will post them as soon as I have them.

Eric

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From - Thu Nov 08 21:37:29 2018
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From: Andrew Morton <akpm@linux-foundation.org>
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Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
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On Fri, 8 May 2015 16:06:10 -0400 Eric B Munson <emunson@akamai.com> wrote:

> On Fri, 08 May 2015, Andrew Morton wrote:
> 
> > On Fri,  8 May 2015 15:33:43 -0400 Eric B Munson <emunson@akamai.com> wrote:
> > 
> > > mlock() allows a user to control page out of program memory, but this
> > > comes at the cost of faulting in the entire mapping when it is
> > > allocated.  For large mappings where the entire area is not necessary
> > > this is not ideal.
> > > 
> > > This series introduces new flags for mmap() and mlockall() that allow a
> > > user to specify that the covered are should not be paged out, but only
> > > after the memory has been used the first time.
> > 
> > Please tell us much much more about the value of these changes: the use
> > cases, the behavioural improvements and performance results which the
> > patchset brings to those use cases, etc.
> > 
> 
> The primary use case is for mmaping large files read only.  The process
> knows that some of the data is necessary, but it is unlikely that the
> entire file will be needed.  The developer only wants to pay the cost to
> read the data in once.  Unfortunately developer must choose between
> allowing the kernel to page in the memory as needed and guaranteeing
> that the data will only be read from disk once.  The first option runs
> the risk of having the memory reclaimed if the system is under memory
> pressure, the second forces the memory usage and startup delay when
> faulting in the entire file.

Why can't the application mmap only those parts of the file which it
wants and mlock those?

> I am working on getting startup times with and without this change for
> an application, I will post them as soon as I have them.

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From - Thu Nov 08 21:37:29 2018
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Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
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On Fri, 08 May 2015, Andrew Morton wrote:

> On Fri, 8 May 2015 16:06:10 -0400 Eric B Munson <emunson@akamai.com> wrot=
e:
>=20
> > On Fri, 08 May 2015, Andrew Morton wrote:
> >=20
> > > On Fri,  8 May 2015 15:33:43 -0400 Eric B Munson <emunson@akamai.com>=
 wrote:
> > >=20
> > > > mlock() allows a user to control page out of program memory, but th=
is
> > > > comes at the cost of faulting in the entire mapping when it is
> > > > allocated.  For large mappings where the entire area is not necessa=
ry
> > > > this is not ideal.
> > > >=20
> > > > This series introduces new flags for mmap() and mlockall() that all=
ow a
> > > > user to specify that the covered are should not be paged out, but o=
nly
> > > > after the memory has been used the first time.
> > >=20
> > > Please tell us much much more about the value of these changes: the u=
se
> > > cases, the behavioural improvements and performance results which the
> > > patchset brings to those use cases, etc.
> > >=20
> >=20
> > The primary use case is for mmaping large files read only.  The process
> > knows that some of the data is necessary, but it is unlikely that the
> > entire file will be needed.  The developer only wants to pay the cost to
> > read the data in once.  Unfortunately developer must choose between
> > allowing the kernel to page in the memory as needed and guaranteeing
> > that the data will only be read from disk once.  The first option runs
> > the risk of having the memory reclaimed if the system is under memory
> > pressure, the second forces the memory usage and startup delay when
> > faulting in the entire file.
>=20
> Why can't the application mmap only those parts of the file which it
> wants and mlock those?

There are a number of problems with this approach.  The first is it
presumes the program will know what portions are needed a head of time.
In many cases this is simply not true.  The second problem is the number
of syscalls required.  With my patches, a single mmap() or mlockall()
call is needed to setup the required locking.  Without it, a separate
mmap call must be made for each piece of data that is needed.  This also
opens up problems for data that is arranged assuming it is contiguous in
memory.  With the single mmap call, the user gets a contiguous VMA
without having to know about it.  mmap() with MAP_FIXED could address
the problem, but this introduces a new failure mode of your map
colliding with another that was placed by the kernel.

Another use case for the LOCKONFAULT flag is the security use of
mlock().  If an application will be using data that cannot be written
to swap, but the exact size is unknown until run time (all we have a
build time is the maximum size the buffer can be).  The LOCKONFAULT flag
allows the developer to create the buffer and guarantee that the
contents are never written to swap without ever consuming more memory
than is actually needed.

>=20
> > I am working on getting startup times with and without this change for
> > an application, I will post them as soon as I have them.
>=20

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Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
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On Fri, 08 May 2015, Andrew Morton wrote:

> On Fri,  8 May 2015 15:33:43 -0400 Eric B Munson <emunson@akamai.com> wro=
te:
>=20
> > mlock() allows a user to control page out of program memory, but this
> > comes at the cost of faulting in the entire mapping when it is
> > allocated.  For large mappings where the entire area is not necessary
> > this is not ideal.
> >=20
> > This series introduces new flags for mmap() and mlockall() that allow a
> > user to specify that the covered are should not be paged out, but only
> > after the memory has been used the first time.
>=20
> Please tell us much much more about the value of these changes: the use
> cases, the behavioural improvements and performance results which the
> patchset brings to those use cases, etc.
>=20

To illustrate the proposed use case I wrote a quick program that mmaps
a 5GB file which is filled with random data and accesses 150,000 pages
=66rom that mapping.  Setup and processing were timed separately to
illustrate the differences between the three tested approaches.  the
setup portion is simply the call to mmap, the processing is the
accessing of the various locations in  that mapping.  The following
values are in milliseconds and are the averages of 20 runs each with a
call to echo 3 > /proc/sys/vm/drop_caches between each run.

The first mapping was made with MAP_PRIVATE | MAP_LOCKED as a baseline:
Startup average:    9476.506
Processing average: 3.573

The second mapping was simply MAP_PRIVATE but each page was passed to
mlock() before being read:
Startup average:    0.051
Processing average: 721.859

The final mapping was MAP_PRIVATE | MAP_LOCKONFAULT:
Startup average:    0.084
Processing average: 42.125



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Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
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On Mon, 11 May 2015 10:36:18 -0400 Eric B Munson <emunson@akamai.com> wrote:

> On Fri, 08 May 2015, Andrew Morton wrote:
> ...
>
> > 
> > Why can't the application mmap only those parts of the file which it
> > wants and mlock those?
> 
> There are a number of problems with this approach.  The first is it
> presumes the program will know what portions are needed a head of time.
> In many cases this is simply not true.  The second problem is the number
> of syscalls required.  With my patches, a single mmap() or mlockall()
> call is needed to setup the required locking.  Without it, a separate
> mmap call must be made for each piece of data that is needed.  This also
> opens up problems for data that is arranged assuming it is contiguous in
> memory.  With the single mmap call, the user gets a contiguous VMA
> without having to know about it.  mmap() with MAP_FIXED could address
> the problem, but this introduces a new failure mode of your map
> colliding with another that was placed by the kernel.
> 
> Another use case for the LOCKONFAULT flag is the security use of
> mlock().  If an application will be using data that cannot be written
> to swap, but the exact size is unknown until run time (all we have a
> build time is the maximum size the buffer can be).  The LOCKONFAULT flag
> allows the developer to create the buffer and guarantee that the
> contents are never written to swap without ever consuming more memory
> than is actually needed.

What application(s) or class of applications are we talking about here?

IOW, how generally applicable is this?  It sounds rather specialized.

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From - Thu Nov 08 21:37:29 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.metag,gmane.linux.kernel.mm
Subject: [PATCH] Fix crashes due to stack randomization on
 stack-grows-upwards architectures
Date: Mon, 11 May 2015 22:01:27 +0200
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To: linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org,
	James Hogan <james.hogan@imgtec.com>,
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On architectures where the stack grows upwards (CONFIG_STACK_GROWSUP=y,
currently parisc and metag only) stack randomization sometimes leads to crashes
when the stack ulimit is set to lower values than STACK_RND_MASK (which is 8 MB
by default if not defined in arch-specific headers).

The problem is, that when the stack vm_area_struct is set up in fs/exec.c, the
additional space needed for the stack randomization (as defined by the value of
STACK_RND_MASK) was not taken into account yet and as such, when the stack
randomization code added a random offset to the stack start, the stack
effectively got smaller than what the user defined via rlimit_max(RLIMIT_STACK)
which then sometimes leads to out-of-stack situations and crashes.

This patch fixes it by adding the maximum possible amount of memory (based on
STACK_RND_MASK) which theoretically could be added by the stack randomization
code to the initial stack size. That way, the user-defined stack size is always
guaranteed to be at minimum what is defined via rlimit_max(RLIMIT_STACK).

This bug is currently not visible on the metag architecture, because on metag
STACK_RND_MASK is defined to 0 which effectively disables stack randomization.

The changes to fs/exec.c are inside an "#ifdef CONFIG_STACK_GROWSUP"
section, so it does not affect other platformws beside those where the
stack grows upwards (parisc and metag).

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-metag@vger.kernel.org
Cc: linux-mm@kvack.org

diffstat:
 arch/parisc/include/asm/elf.h   |    4 ++++
 arch/parisc/kernel/sys_parisc.c |    3 +++
 fs/exec.c                       |    3 +++
 3 files changed, 10 insertions(+)


diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index 3391d06..78c9fd3 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -348,6 +348,10 @@ struct pt_regs;	/* forward declaration... */
 
 #define ELF_HWCAP	0
 
+#define STACK_RND_MASK	(is_32bit_task() ? \
+				0x7ff >> (PAGE_SHIFT - 12) : \
+				0x3ffff >> (PAGE_SHIFT - 12))
+
 struct mm_struct;
 extern unsigned long arch_randomize_brk(struct mm_struct *);
 #define arch_randomize_brk arch_randomize_brk
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index e1ffea2..5aba01a 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -77,6 +77,9 @@ static unsigned long mmap_upper_limit(void)
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;
 
+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }
 
diff --git a/fs/exec.c b/fs/exec.c
index 49a1c61..1977c2a 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -659,6 +659,9 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;
 
+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
 		return -ENOMEM;
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Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
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On Mon, 11 May 2015, Andrew Morton wrote:

> On Mon, 11 May 2015 10:36:18 -0400 Eric B Munson <emunson@akamai.com> wro=
te:
>=20
> > On Fri, 08 May 2015, Andrew Morton wrote:
> > ...
> >
> > >=20
> > > Why can't the application mmap only those parts of the file which it
> > > wants and mlock those?
> >=20
> > There are a number of problems with this approach.  The first is it
> > presumes the program will know what portions are needed a head of time.
> > In many cases this is simply not true.  The second problem is the number
> > of syscalls required.  With my patches, a single mmap() or mlockall()
> > call is needed to setup the required locking.  Without it, a separate
> > mmap call must be made for each piece of data that is needed.  This also
> > opens up problems for data that is arranged assuming it is contiguous in
> > memory.  With the single mmap call, the user gets a contiguous VMA
> > without having to know about it.  mmap() with MAP_FIXED could address
> > the problem, but this introduces a new failure mode of your map
> > colliding with another that was placed by the kernel.
> >=20
> > Another use case for the LOCKONFAULT flag is the security use of
> > mlock().  If an application will be using data that cannot be written
> > to swap, but the exact size is unknown until run time (all we have a
> > build time is the maximum size the buffer can be).  The LOCKONFAULT flag
> > allows the developer to create the buffer and guarantee that the
> > contents are never written to swap without ever consuming more memory
> > than is actually needed.
>=20
> What application(s) or class of applications are we talking about here?
>=20
> IOW, how generally applicable is this?  It sounds rather specialized.
>=20

For the example of a large file, this is the usage pattern for a large
statical language model (probably applies to other statical or graphical
models as well).  For the security example, any application transacting
in data that cannot be swapped out (credit card data, medical records,
etc).


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Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
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Date: Wed, 13 May 2015 15:58:05 +0200
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On Fri 08-05-15 16:06:10, Eric B Munson wrote:
> On Fri, 08 May 2015, Andrew Morton wrote:
> 
> > On Fri,  8 May 2015 15:33:43 -0400 Eric B Munson <emunson@akamai.com> wrote:
> > 
> > > mlock() allows a user to control page out of program memory, but this
> > > comes at the cost of faulting in the entire mapping when it is
> > > allocated.  For large mappings where the entire area is not necessary
> > > this is not ideal.
> > > 
> > > This series introduces new flags for mmap() and mlockall() that allow a
> > > user to specify that the covered are should not be paged out, but only
> > > after the memory has been used the first time.
> > 
> > Please tell us much much more about the value of these changes: the use
> > cases, the behavioural improvements and performance results which the
> > patchset brings to those use cases, etc.
> > 
> 
> The primary use case is for mmaping large files read only.  The process
> knows that some of the data is necessary, but it is unlikely that the
> entire file will be needed.  The developer only wants to pay the cost to
> read the data in once.  Unfortunately developer must choose between
> allowing the kernel to page in the memory as needed and guaranteeing
> that the data will only be read from disk once.  The first option runs
> the risk of having the memory reclaimed if the system is under memory
> pressure, the second forces the memory usage and startup delay when
> faulting in the entire file.

Is there any reason you cannot do this from the userspace? Start by
mmap(PROT_NONE) and do mmap(MAP_FIXED|MAP_LOCKED|MAP_READ|other_flags_you_need)
from the SIGSEGV handler?
You can generate a lot of vmas that way but you can mitigate that to a
certain level by mapping larger than PAGE_SIZE chunks in the fault
handler. Would that work in your usecase?
-- 
Michal Hocko
SUSE Labs
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Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
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On Wed, 13 May 2015, Michal Hocko wrote:

> On Fri 08-05-15 16:06:10, Eric B Munson wrote:
> > On Fri, 08 May 2015, Andrew Morton wrote:
> >=20
> > > On Fri,  8 May 2015 15:33:43 -0400 Eric B Munson <emunson@akamai.com>=
 wrote:
> > >=20
> > > > mlock() allows a user to control page out of program memory, but th=
is
> > > > comes at the cost of faulting in the entire mapping when it is
> > > > allocated.  For large mappings where the entire area is not necessa=
ry
> > > > this is not ideal.
> > > >=20
> > > > This series introduces new flags for mmap() and mlockall() that all=
ow a
> > > > user to specify that the covered are should not be paged out, but o=
nly
> > > > after the memory has been used the first time.
> > >=20
> > > Please tell us much much more about the value of these changes: the u=
se
> > > cases, the behavioural improvements and performance results which the
> > > patchset brings to those use cases, etc.
> > >=20
> >=20
> > The primary use case is for mmaping large files read only.  The process
> > knows that some of the data is necessary, but it is unlikely that the
> > entire file will be needed.  The developer only wants to pay the cost to
> > read the data in once.  Unfortunately developer must choose between
> > allowing the kernel to page in the memory as needed and guaranteeing
> > that the data will only be read from disk once.  The first option runs
> > the risk of having the memory reclaimed if the system is under memory
> > pressure, the second forces the memory usage and startup delay when
> > faulting in the entire file.
>=20
> Is there any reason you cannot do this from the userspace? Start by
> mmap(PROT_NONE) and do mmap(MAP_FIXED|MAP_LOCKED|MAP_READ|other_flags_you=
_need)
> from the SIGSEGV handler?
> You can generate a lot of vmas that way but you can mitigate that to a
> certain level by mapping larger than PAGE_SIZE chunks in the fault
> handler. Would that work in your usecase?

This might work for the use cases I have laid out (I am not sure about
the anonymous mmap one, but I will try it).  I am concerned about how
much memory management policy these suggestions push into userspace.
I am also concerned about the number of system calls required to do the
same thing.  This will require a new call to mmap() for every new page
accessed in the file (or for every file_size/map_size in the multiple
page chunk).  The simple case of calling mlock() on the every time the
file was accessed was significantly slower than the LOCKONFAULT flag.
Your suggestion will be better in that it avoids the extra mlock call
for pages already locked, but there still significantly more system
calls.  I will add this to the program I have been using to measure
executuion times and see how it compares to the other options.

Eric


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From - Thu Nov 08 21:37:30 2018
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Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
 fault
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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On Mon, 11 May 2015, Eric B Munson wrote:

> On Fri, 08 May 2015, Andrew Morton wrote:
>=20
> > On Fri,  8 May 2015 15:33:43 -0400 Eric B Munson <emunson@akamai.com> w=
rote:
> >=20
> > > mlock() allows a user to control page out of program memory, but this
> > > comes at the cost of faulting in the entire mapping when it is
> > > allocated.  For large mappings where the entire area is not necessary
> > > this is not ideal.
> > >=20
> > > This series introduces new flags for mmap() and mlockall() that allow=
 a
> > > user to specify that the covered are should not be paged out, but only
> > > after the memory has been used the first time.
> >=20
> > Please tell us much much more about the value of these changes: the use
> > cases, the behavioural improvements and performance results which the
> > patchset brings to those use cases, etc.
> >=20
>=20
> To illustrate the proposed use case I wrote a quick program that mmaps
> a 5GB file which is filled with random data and accesses 150,000 pages
> from that mapping.  Setup and processing were timed separately to
> illustrate the differences between the three tested approaches.  the
> setup portion is simply the call to mmap, the processing is the
> accessing of the various locations in  that mapping.  The following
> values are in milliseconds and are the averages of 20 runs each with a
> call to echo 3 > /proc/sys/vm/drop_caches between each run.
>=20
> The first mapping was made with MAP_PRIVATE | MAP_LOCKED as a baseline:
> Startup average:    9476.506
> Processing average: 3.573
>=20
> The second mapping was simply MAP_PRIVATE but each page was passed to
> mlock() before being read:
> Startup average:    0.051
> Processing average: 721.859
>=20
> The final mapping was MAP_PRIVATE | MAP_LOCKONFAULT:
> Startup average:    0.084
> Processing average: 42.125
>=20

Michal's suggestion of changing protections and locking in a signal
handler was better than the locking as needed, but still significantly
more work required than the LOCKONFAULT case.

Startup average:    0.047
Processing average: 86.431


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From - Thu Nov 08 21:37:30 2018
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X-Mozilla-Keys:                                                                                 
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From: Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>
Newsgroups: gmane.linux.kernel.api,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
 fault
Date: Thu, 14 May 2015 10:08:12 +0200
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Approved: news@gmane.org
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Cc: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
	Shuah Khan <shuahkh-JPH+aEBZ4P+UEJcrhfAQsw@public.gmane.org>,
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To: Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.api/11093>

On Wed 13-05-15 11:00:36, Eric B Munson wrote:
> On Mon, 11 May 2015, Eric B Munson wrote:
> 
> > On Fri, 08 May 2015, Andrew Morton wrote:
> > 
> > > On Fri,  8 May 2015 15:33:43 -0400 Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org> wrote:
> > > 
> > > > mlock() allows a user to control page out of program memory, but this
> > > > comes at the cost of faulting in the entire mapping when it is
> > > > allocated.  For large mappings where the entire area is not necessary
> > > > this is not ideal.
> > > > 
> > > > This series introduces new flags for mmap() and mlockall() that allow a
> > > > user to specify that the covered are should not be paged out, but only
> > > > after the memory has been used the first time.
> > > 
> > > Please tell us much much more about the value of these changes: the use
> > > cases, the behavioural improvements and performance results which the
> > > patchset brings to those use cases, etc.
> > > 
> > 
> > To illustrate the proposed use case I wrote a quick program that mmaps
> > a 5GB file which is filled with random data and accesses 150,000 pages
> > from that mapping.  Setup and processing were timed separately to
> > illustrate the differences between the three tested approaches.  the
> > setup portion is simply the call to mmap, the processing is the
> > accessing of the various locations in  that mapping.  The following
> > values are in milliseconds and are the averages of 20 runs each with a
> > call to echo 3 > /proc/sys/vm/drop_caches between each run.
> > 
> > The first mapping was made with MAP_PRIVATE | MAP_LOCKED as a baseline:
> > Startup average:    9476.506
> > Processing average: 3.573
> > 
> > The second mapping was simply MAP_PRIVATE but each page was passed to
> > mlock() before being read:
> > Startup average:    0.051
> > Processing average: 721.859
> > 
> > The final mapping was MAP_PRIVATE | MAP_LOCKONFAULT:
> > Startup average:    0.084
> > Processing average: 42.125
> > 
> 
> Michal's suggestion of changing protections and locking in a signal
> handler was better than the locking as needed, but still significantly
> more work required than the LOCKONFAULT case.
> 
> Startup average:    0.047
> Processing average: 86.431

Have you played with batching? Has it helped? Anyway it is to be
expected that the overhead will be higher than a single mmap call. The
question is whether you can live with it because adding a new semantic
to mlock sounds trickier and MAP_LOCKED is tricky enough already...

-- 
Michal Hocko
SUSE Labs

From - Thu Nov 08 21:37:30 2018
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From: Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.kernel.api,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
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Date: Thu, 14 May 2015 09:58:35 -0400
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Cc: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
	Shuah Khan <shuahkh-JPH+aEBZ4P+UEJcrhfAQsw@public.gmane.org>,
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To: Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>
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On Thu, 14 May 2015, Michal Hocko wrote:

> On Wed 13-05-15 11:00:36, Eric B Munson wrote:
> > On Mon, 11 May 2015, Eric B Munson wrote:
> >=20
> > > On Fri, 08 May 2015, Andrew Morton wrote:
> > >=20
> > > > On Fri,  8 May 2015 15:33:43 -0400 Eric B Munson <emunson-JqFfY2XvxFVhl2p70BpVqQ@public.gmane.org=
m> wrote:
> > > >=20
> > > > > mlock() allows a user to control page out of program memory, but =
this
> > > > > comes at the cost of faulting in the entire mapping when it is
> > > > > allocated.  For large mappings where the entire area is not neces=
sary
> > > > > this is not ideal.
> > > > >=20
> > > > > This series introduces new flags for mmap() and mlockall() that a=
llow a
> > > > > user to specify that the covered are should not be paged out, but=
 only
> > > > > after the memory has been used the first time.
> > > >=20
> > > > Please tell us much much more about the value of these changes: the=
 use
> > > > cases, the behavioural improvements and performance results which t=
he
> > > > patchset brings to those use cases, etc.
> > > >=20
> > >=20
> > > To illustrate the proposed use case I wrote a quick program that mmaps
> > > a 5GB file which is filled with random data and accesses 150,000 pages
> > > from that mapping.  Setup and processing were timed separately to
> > > illustrate the differences between the three tested approaches.  the
> > > setup portion is simply the call to mmap, the processing is the
> > > accessing of the various locations in  that mapping.  The following
> > > values are in milliseconds and are the averages of 20 runs each with a
> > > call to echo 3 > /proc/sys/vm/drop_caches between each run.
> > >=20
> > > The first mapping was made with MAP_PRIVATE | MAP_LOCKED as a baselin=
e:
> > > Startup average:    9476.506
> > > Processing average: 3.573
> > >=20
> > > The second mapping was simply MAP_PRIVATE but each page was passed to
> > > mlock() before being read:
> > > Startup average:    0.051
> > > Processing average: 721.859
> > >=20
> > > The final mapping was MAP_PRIVATE | MAP_LOCKONFAULT:
> > > Startup average:    0.084
> > > Processing average: 42.125
> > >=20
> >=20
> > Michal's suggestion of changing protections and locking in a signal
> > handler was better than the locking as needed, but still significantly
> > more work required than the LOCKONFAULT case.
> >=20
> > Startup average:    0.047
> > Processing average: 86.431
>=20
> Have you played with batching? Has it helped? Anyway it is to be
> expected that the overhead will be higher than a single mmap call. The
> question is whether you can live with it because adding a new semantic
> to mlock sounds trickier and MAP_LOCKED is tricky enough already...
>=20

The test code I have been using is a pathalogical test case that only
touches pages once and they are fairly far apart.

On the face batching sounds like a good idea, but I have a couple of
questions.  In order to batch fault in pages the seg fault handler needs
to know about the mapping in question.  Specifically it needs to know
where it ends so that it doesn't try and mprotect()/mlock() past the
end.  So now the program has to start tracking its maps in some globally
accessible structure and this sounds more like implementing memory
management in userspace.  How could this batching be implemented without
requiring the signal handler to know about mapping that is being
accessed?  Also, how much memory management policy is it reasonable to
expect user space to implement in these cases?

Eric


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Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
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To: Michal Hocko <mhocko@suse.cz>
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On Thu, 14 May 2015, Michal Hocko wrote:

> On Wed 13-05-15 11:00:36, Eric B Munson wrote:
> > On Mon, 11 May 2015, Eric B Munson wrote:
> >=20
> > > On Fri, 08 May 2015, Andrew Morton wrote:
> > >=20
> > > > On Fri,  8 May 2015 15:33:43 -0400 Eric B Munson <emunson@akamai.co=
m> wrote:
> > > >=20
> > > > > mlock() allows a user to control page out of program memory, but =
this
> > > > > comes at the cost of faulting in the entire mapping when it is
> > > > > allocated.  For large mappings where the entire area is not neces=
sary
> > > > > this is not ideal.
> > > > >=20
> > > > > This series introduces new flags for mmap() and mlockall() that a=
llow a
> > > > > user to specify that the covered are should not be paged out, but=
 only
> > > > > after the memory has been used the first time.
> > > >=20
> > > > Please tell us much much more about the value of these changes: the=
 use
> > > > cases, the behavioural improvements and performance results which t=
he
> > > > patchset brings to those use cases, etc.
> > > >=20
> > >=20
> > > To illustrate the proposed use case I wrote a quick program that mmaps
> > > a 5GB file which is filled with random data and accesses 150,000 pages
> > > from that mapping.  Setup and processing were timed separately to
> > > illustrate the differences between the three tested approaches.  the
> > > setup portion is simply the call to mmap, the processing is the
> > > accessing of the various locations in  that mapping.  The following
> > > values are in milliseconds and are the averages of 20 runs each with a
> > > call to echo 3 > /proc/sys/vm/drop_caches between each run.
> > >=20
> > > The first mapping was made with MAP_PRIVATE | MAP_LOCKED as a baselin=
e:
> > > Startup average:    9476.506
> > > Processing average: 3.573
> > >=20
> > > The second mapping was simply MAP_PRIVATE but each page was passed to
> > > mlock() before being read:
> > > Startup average:    0.051
> > > Processing average: 721.859
> > >=20
> > > The final mapping was MAP_PRIVATE | MAP_LOCKONFAULT:
> > > Startup average:    0.084
> > > Processing average: 42.125
> > >=20
> >=20
> > Michal's suggestion of changing protections and locking in a signal
> > handler was better than the locking as needed, but still significantly
> > more work required than the LOCKONFAULT case.
> >=20
> > Startup average:    0.047
> > Processing average: 86.431
>=20
> Have you played with batching? Has it helped? Anyway it is to be
> expected that the overhead will be higher than a single mmap call. The
> question is whether you can live with it because adding a new semantic
> to mlock sounds trickier and MAP_LOCKED is tricky enough already...
>=20

I reworked the experiment to better cover the batching solution.  The
same 5GB data file is used, however instead of 150,000 accesses at
regular intervals, the test program now does 15,000,000 accesses to
random pages in the mapping.  The rest of the setup remains the same.

mmap with MAP_LOCKED:
Setup avg:      11821.193
Processing avg: 3404.286

mmap with mlock() before each access:
Setup avg:      0.054
Processing avg: 34263.201

mmap with PROT_NONE and signal handler and batch size of 1 page:
With the default value in max_map_count, this gets ENOMEM as I attempt
to change the permissions, after upping the sysctl significantly I get:
Setup avg:      0.050
Processing avg: 67690.625

mmap with PROT_NONE and signal handler and batch size of 8 pages:
Setup avg:      0.098
Processing avg: 37344.197

mmap with PROT_NONE and signal handler and batch size of 16 pages:
Setup avg:      0.0548
Processing avg: 29295.669

mmap with MAP_LOCKONFAULT:
Setup avg:      0.073
Processing avg: 18392.136

The signal handler in the batch cases faulted in memory in two steps to
avoid having to know the start and end of the faulting mapping.  The
first step covers the page that caused the fault as we know that it will
be possible to lock.  The second step speculatively tries to mlock and
mprotect the batch size - 1 pages that follow.  There may be a clever
way to avoid this without having the program track each mapping to be
covered by this handeler in a globally accessible structure, but I could
not find it.

These results show that if the developer knows that a majority of the
mapping will be used, it is better to try and fault it in at once,
otherwise MAP_LOCKONFAULT is significantly faster.

Eric

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From - Thu Nov 08 21:37:30 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [GIT PULL] parisc fixes for v4.1
Date: Fri, 15 May 2015 19:13:11 +0200
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
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Hi Linus,

please pull the latest fixes for the parisc architecture for v4.1-rc4 from:

  http://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.1-2

One important patch which fixes crashes due to stack randomization on
architectures where the stack grows upwards (currently parisc and metag only).
This bug went unnoticed on parisc since kernel 3.14 where the flexible mmap
memory layout support was added by commit 9dabf60. The changes in fs/exec.c are
inside an #ifdef CONFIG_STACK_GROWSUP section and will not affect other
platforms.
The other two patches rename args of the kthread_arg() function and fixes a
printk output.

Thanks,
Helge

----------------------------------------------------------------
Alex Dowad (1):
      parisc: copy_thread(): rename 'arg' argument to 'kthread_arg'

Helge Deller (1):
      parisc,metag: Fix crashes due to stack randomization on stack-grows-upwards architectures

Scott Wood (1):
      parisc: %pf is only for function pointers

 arch/parisc/include/asm/elf.h   |  4 ++++
 arch/parisc/kernel/process.c    | 10 ++++++----
 arch/parisc/kernel/sys_parisc.c |  3 +++
 drivers/parisc/superio.c        |  2 +-
 fs/exec.c                       |  3 +++
 5 files changed, 17 insertions(+), 5 deletions(-)

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Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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On Fri, 15 May 2015, Eric B Munson wrote:

> On Thu, 14 May 2015, Michal Hocko wrote:
>=20
> > On Wed 13-05-15 11:00:36, Eric B Munson wrote:
> > > On Mon, 11 May 2015, Eric B Munson wrote:
> > >=20
> > > > On Fri, 08 May 2015, Andrew Morton wrote:
> > > >=20
> > > > > On Fri,  8 May 2015 15:33:43 -0400 Eric B Munson <emunson@akamai.=
com> wrote:
> > > > >=20
> > > > > > mlock() allows a user to control page out of program memory, bu=
t this
> > > > > > comes at the cost of faulting in the entire mapping when it is
> > > > > > allocated.  For large mappings where the entire area is not nec=
essary
> > > > > > this is not ideal.
> > > > > >=20
> > > > > > This series introduces new flags for mmap() and mlockall() that=
 allow a
> > > > > > user to specify that the covered are should not be paged out, b=
ut only
> > > > > > after the memory has been used the first time.
> > > > >=20
> > > > > Please tell us much much more about the value of these changes: t=
he use
> > > > > cases, the behavioural improvements and performance results which=
 the
> > > > > patchset brings to those use cases, etc.
> > > > >=20
> > > >=20
> > > > To illustrate the proposed use case I wrote a quick program that mm=
aps
> > > > a 5GB file which is filled with random data and accesses 150,000 pa=
ges
> > > > from that mapping.  Setup and processing were timed separately to
> > > > illustrate the differences between the three tested approaches.  the
> > > > setup portion is simply the call to mmap, the processing is the
> > > > accessing of the various locations in  that mapping.  The following
> > > > values are in milliseconds and are the averages of 20 runs each wit=
h a
> > > > call to echo 3 > /proc/sys/vm/drop_caches between each run.
> > > >=20
> > > > The first mapping was made with MAP_PRIVATE | MAP_LOCKED as a basel=
ine:
> > > > Startup average:    9476.506
> > > > Processing average: 3.573
> > > >=20
> > > > The second mapping was simply MAP_PRIVATE but each page was passed =
to
> > > > mlock() before being read:
> > > > Startup average:    0.051
> > > > Processing average: 721.859
> > > >=20
> > > > The final mapping was MAP_PRIVATE | MAP_LOCKONFAULT:
> > > > Startup average:    0.084
> > > > Processing average: 42.125
> > > >=20
> > >=20
> > > Michal's suggestion of changing protections and locking in a signal
> > > handler was better than the locking as needed, but still significantly
> > > more work required than the LOCKONFAULT case.
> > >=20
> > > Startup average:    0.047
> > > Processing average: 86.431
> >=20
> > Have you played with batching? Has it helped? Anyway it is to be
> > expected that the overhead will be higher than a single mmap call. The
> > question is whether you can live with it because adding a new semantic
> > to mlock sounds trickier and MAP_LOCKED is tricky enough already...
> >=20
>=20
> I reworked the experiment to better cover the batching solution.  The
> same 5GB data file is used, however instead of 150,000 accesses at
> regular intervals, the test program now does 15,000,000 accesses to
> random pages in the mapping.  The rest of the setup remains the same.
>=20
> mmap with MAP_LOCKED:
> Setup avg:      11821.193
> Processing avg: 3404.286
>=20
> mmap with mlock() before each access:
> Setup avg:      0.054
> Processing avg: 34263.201
>=20
> mmap with PROT_NONE and signal handler and batch size of 1 page:
> With the default value in max_map_count, this gets ENOMEM as I attempt
> to change the permissions, after upping the sysctl significantly I get:
> Setup avg:      0.050
> Processing avg: 67690.625
>=20
> mmap with PROT_NONE and signal handler and batch size of 8 pages:
> Setup avg:      0.098
> Processing avg: 37344.197
>=20
> mmap with PROT_NONE and signal handler and batch size of 16 pages:
> Setup avg:      0.0548
> Processing avg: 29295.669
>=20
> mmap with MAP_LOCKONFAULT:
> Setup avg:      0.073
> Processing avg: 18392.136
>=20
> The signal handler in the batch cases faulted in memory in two steps to
> avoid having to know the start and end of the faulting mapping.  The
> first step covers the page that caused the fault as we know that it will
> be possible to lock.  The second step speculatively tries to mlock and
> mprotect the batch size - 1 pages that follow.  There may be a clever
> way to avoid this without having the program track each mapping to be
> covered by this handeler in a globally accessible structure, but I could
> not find it.
>=20
> These results show that if the developer knows that a majority of the
> mapping will be used, it is better to try and fault it in at once,
> otherwise MAP_LOCKONFAULT is significantly faster.
>=20
> Eric

Is there anything else I can add to the discussion here?


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From: Jiang Liu <jiang.liu@linux.intel.com>
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Subject: [Patch v2 08/14] genirq: Introduce helper function irq_data_get_affinity_mask()
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Introduce helper function irq_data_get_affinity_mask() and
irq_get_affinity_mask() to hide implementation details,
so we could move field 'affinity' from struct irq_data into
struct irq_common_data later.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
 arch/alpha/kernel/irq.c                   |    2 +-
 arch/arm/kernel/irq.c                     |    4 ++--
 arch/arm64/kernel/irq.c                   |    4 ++--
 arch/blackfin/mach-common/ints-priority.c |    3 ++-
 arch/ia64/kernel/iosapic.c                |    2 +-
 arch/ia64/kernel/irq.c                    |    6 +++---
 arch/ia64/kernel/msi_ia64.c               |    4 ++--
 arch/ia64/sn/kernel/msi_sn.c              |    2 +-
 arch/metag/kernel/irq.c                   |   10 ++++++----
 arch/mips/bcm63xx/irq.c                   |    2 +-
 arch/mips/cavium-octeon/octeon-irq.c      |   14 ++++++++------
 arch/mips/pmcs-msp71xx/msp_irq_cic.c      |    3 ++-
 arch/mn10300/kernel/cevt-mn10300.c        |    2 +-
 arch/mn10300/kernel/irq.c                 |   13 +++++++------
 arch/parisc/kernel/irq.c                  |   12 ++++++------
 arch/powerpc/kernel/irq.c                 |    2 +-
 arch/powerpc/sysdev/xics/ics-opal.c       |    2 +-
 arch/powerpc/sysdev/xics/ics-rtas.c       |    2 +-
 arch/sh/kernel/irq.c                      |    7 ++++---
 arch/sparc/kernel/irq_64.c                |   12 +++++++-----
 arch/sparc/kernel/leon_kernel.c           |    6 +++---
 arch/x86/kernel/apic/io_apic.c            |    2 +-
 arch/x86/kernel/apic/vector.c             |    5 ++---
 arch/x86/kernel/irq.c                     |    5 +++--
 arch/xtensa/kernel/irq.c                  |   10 ++++++----
 drivers/irqchip/irq-mips-gic.c            |    2 +-
 drivers/parisc/iosapic.c                  |    2 +-
 drivers/sh/intc/chip.c                    |    6 +++---
 drivers/xen/events/events_base.c          |    4 ++--
 include/linux/irq.h                       |   12 ++++++++++++
 30 files changed, 93 insertions(+), 69 deletions(-)

diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index 7b2be251c30f..bd8e47699cad 100644
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -60,7 +60,7 @@ int irq_select_affinity(unsigned int irq)
 		cpu = (cpu < (NR_CPUS-1) ? cpu + 1 : 0);
 	last_cpu = cpu;
 
-	cpumask_copy(data->affinity, cpumask_of(cpu));
+	cpumask_copy(irq_data_get_affinity_mask(data), cpumask_of(cpu));
 	chip->irq_set_affinity(data, cpumask_of(cpu), false);
 	return 0;
 }
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 350f188c92d2..baf8edebe26f 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -140,7 +140,7 @@ int __init arch_probe_nr_irqs(void)
 static bool migrate_one_irq(struct irq_desc *desc)
 {
 	struct irq_data *d = irq_desc_get_irq_data(desc);
-	const struct cpumask *affinity = d->affinity;
+	const struct cpumask *affinity = irq_data_get_affinity_mask(d);
 	struct irq_chip *c;
 	bool ret = false;
 
@@ -160,7 +160,7 @@ static bool migrate_one_irq(struct irq_desc *desc)
 	if (!c->irq_set_affinity)
 		pr_debug("IRQ%u: unable to set affinity\n", d->irq);
 	else if (c->irq_set_affinity(d, affinity, false) == IRQ_SET_MASK_OK && ret)
-		cpumask_copy(d->affinity, affinity);
+		cpumask_copy(irq_data_get_affinity_mask(d), affinity);
 
 	return ret;
 }
diff --git a/arch/arm64/kernel/irq.c b/arch/arm64/kernel/irq.c
index 240b75c0e94f..463fa2e7e34c 100644
--- a/arch/arm64/kernel/irq.c
+++ b/arch/arm64/kernel/irq.c
@@ -61,7 +61,7 @@ void __init init_IRQ(void)
 static bool migrate_one_irq(struct irq_desc *desc)
 {
 	struct irq_data *d = irq_desc_get_irq_data(desc);
-	const struct cpumask *affinity = d->affinity;
+	const struct cpumask *affinity = irq_data_get_affinity_mask(d);
 	struct irq_chip *c;
 	bool ret = false;
 
@@ -81,7 +81,7 @@ static bool migrate_one_irq(struct irq_desc *desc)
 	if (!c->irq_set_affinity)
 		pr_debug("IRQ%u: unable to set affinity\n", d->irq);
 	else if (c->irq_set_affinity(d, affinity, false) == IRQ_SET_MASK_OK && ret)
-		cpumask_copy(d->affinity, affinity);
+		cpumask_copy(irq_data_get_affinity_mask(d), affinity);
 
 	return ret;
 }
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index 7236bdfc71e6..332a434b4669 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -194,7 +194,8 @@ void bfin_internal_unmask_irq(unsigned int irq)
 #ifdef CONFIG_SMP
 static void bfin_internal_unmask_irq_chip(struct irq_data *d)
 {
-	bfin_internal_unmask_irq_affinity(d->irq, d->affinity);
+	bfin_internal_unmask_irq_affinity(d->irq,
+					  irq_data_get_affinity_mask(d));
 }
 
 static int bfin_internal_set_affinity(struct irq_data *d,
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index bc9501e36e77..4d2698d43c39 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -838,7 +838,7 @@ iosapic_unregister_intr (unsigned int gsi)
 	if (iosapic_intr_info[irq].count == 0) {
 #ifdef CONFIG_SMP
 		/* Clear affinity */
-		cpumask_setall(irq_get_irq_data(irq)->affinity);
+		cpumask_setall(irq_get_affinity_mask(irq));
 #endif
 		/* Clear the interrupt information */
 		iosapic_intr_info[irq].dest = 0;
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index 812a1e6b3179..de4fc00dea98 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -67,7 +67,7 @@ static char irq_redir [NR_IRQS]; // = { [0 ... NR_IRQS-1] = 1 };
 void set_irq_affinity_info (unsigned int irq, int hwid, int redir)
 {
 	if (irq < NR_IRQS) {
-		cpumask_copy(irq_get_irq_data(irq)->affinity,
+		cpumask_copy(irq_get_affinity_mask(irq),
 			     cpumask_of(cpu_logical_id(hwid)));
 		irq_redir[irq] = (char) (redir & 0xff);
 	}
@@ -119,8 +119,8 @@ static void migrate_irqs(void)
 		if (irqd_is_per_cpu(data))
 			continue;
 
-		if (cpumask_any_and(data->affinity, cpu_online_mask)
-		    >= nr_cpu_ids) {
+		if (cpumask_any_and(irq_data_get_affinity_mask(data),
+				    cpu_online_mask) >= nr_cpu_ids) {
 			/*
 			 * Save it for phase 2 processing
 			 */
diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c
index d70bf15c690a..6c50d332b7d7 100644
--- a/arch/ia64/kernel/msi_ia64.c
+++ b/arch/ia64/kernel/msi_ia64.c
@@ -36,7 +36,7 @@ static int ia64_set_msi_irq_affinity(struct irq_data *idata,
 	msg.data = data;
 
 	pci_write_msi_msg(irq, &msg);
-	cpumask_copy(idata->affinity, cpumask_of(cpu));
+	cpumask_copy(irq_data_get_affinity_mask(idata), cpumask_of(cpu));
 
 	return 0;
 }
@@ -148,7 +148,7 @@ static int dmar_msi_set_affinity(struct irq_data *data,
 	msg.address_lo |= MSI_ADDR_DEST_ID_CPU(cpu_physical_id(cpu));
 
 	dmar_msi_write(irq, &msg);
-	cpumask_copy(data->affinity, mask);
+	cpumask_copy(irq_data_get_affinity_mask(data), mask);
 
 	return 0;
 }
diff --git a/arch/ia64/sn/kernel/msi_sn.c b/arch/ia64/sn/kernel/msi_sn.c
index a0eb27b66d13..42b5a13af142 100644
--- a/arch/ia64/sn/kernel/msi_sn.c
+++ b/arch/ia64/sn/kernel/msi_sn.c
@@ -206,7 +206,7 @@ static int sn_set_msi_irq_affinity(struct irq_data *data,
 	msg.address_lo = (u32)(bus_addr & 0x00000000ffffffff);
 
 	pci_write_msi_msg(irq, &msg);
-	cpumask_copy(data->affinity, cpu_mask);
+	cpumask_copy(irq_data_get_affinity_mask(data), cpu_mask);
 
 	return 0;
 }
diff --git a/arch/metag/kernel/irq.c b/arch/metag/kernel/irq.c
index 4f8f1f87ef11..a336094a7a6c 100644
--- a/arch/metag/kernel/irq.c
+++ b/arch/metag/kernel/irq.c
@@ -270,23 +270,25 @@ void migrate_irqs(void)
 
 	for_each_active_irq(i) {
 		struct irq_data *data = irq_get_irq_data(i);
+		struct cpumask *mask;
 		unsigned int newcpu;
 
 		if (irqd_is_per_cpu(data))
 			continue;
 
-		if (!cpumask_test_cpu(cpu, data->affinity))
+		mask = irq_data_get_affinity_mask(data);
+		if (!cpumask_test_cpu(cpu, mask))
 			continue;
 
-		newcpu = cpumask_any_and(data->affinity, cpu_online_mask);
+		newcpu = cpumask_any_and(mask, cpu_online_mask);
 
 		if (newcpu >= nr_cpu_ids) {
 			pr_info_ratelimited("IRQ%u no longer affine to CPU%u\n",
 					    i, cpu);
 
-			cpumask_setall(data->affinity);
+			cpumask_setall(mask);
 		}
-		irq_set_affinity(i, data->affinity);
+		irq_set_affinity(i, mask);
 	}
 }
 #endif /* CONFIG_HOTPLUG_CPU */
diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c
index e3e808a6c542..02983b90826d 100644
--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -60,7 +60,7 @@ static inline int enable_irq_for_cpu(int cpu, struct irq_data *d,
 	if (m)
 		enable &= cpumask_test_cpu(cpu, m);
 	else if (irqd_affinity_was_set(d))
-		enable &= cpumask_test_cpu(cpu, d->affinity);
+		enable &= cpumask_test_cpu(cpu, irq_data_get_affinity_mask(d));
 #endif
 	return enable;
 }
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index 10f762557b92..0643ae614284 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -225,13 +225,14 @@ static int next_cpu_for_irq(struct irq_data *data)
 
 #ifdef CONFIG_SMP
 	int cpu;
-	int weight = cpumask_weight(data->affinity);
+	struct cpumask *mask = irq_data_get_affinity_mask(data);
+	int weight = cpumask_weight(mask);
 	struct octeon_ciu_chip_data *cd = irq_data_get_irq_chip_data(data);
 
 	if (weight > 1) {
 		cpu = cd->current_cpu;
 		for (;;) {
-			cpu = cpumask_next(cpu, data->affinity);
+			cpu = cpumask_next(cpu, mask);
 			if (cpu >= nr_cpu_ids) {
 				cpu = -1;
 				continue;
@@ -240,7 +241,7 @@ static int next_cpu_for_irq(struct irq_data *data)
 			}
 		}
 	} else if (weight == 1) {
-		cpu = cpumask_first(data->affinity);
+		cpu = cpumask_first(mask);
 	} else {
 		cpu = smp_processor_id();
 	}
@@ -710,16 +711,17 @@ static void octeon_irq_cpu_offline_ciu(struct irq_data *data)
 {
 	int cpu = smp_processor_id();
 	cpumask_t new_affinity;
+	struct cpumask *mask = irq_data_get_affinity_mask(data);
 
-	if (!cpumask_test_cpu(cpu, data->affinity))
+	if (!cpumask_test_cpu(cpu, mask))
 		return;
 
-	if (cpumask_weight(data->affinity) > 1) {
+	if (cpumask_weight(mask) > 1) {
 		/*
 		 * It has multi CPU affinity, just remove this CPU
 		 * from the affinity set.
 		 */
-		cpumask_copy(&new_affinity, data->affinity);
+		cpumask_copy(&new_affinity, mask);
 		cpumask_clear_cpu(cpu, &new_affinity);
 	} else {
 		/* Otherwise, put it on lowest numbered online CPU. */
diff --git a/arch/mips/pmcs-msp71xx/msp_irq_cic.c b/arch/mips/pmcs-msp71xx/msp_irq_cic.c
index 1207ec4dfb77..8b9cf6463040 100644
--- a/arch/mips/pmcs-msp71xx/msp_irq_cic.c
+++ b/arch/mips/pmcs-msp71xx/msp_irq_cic.c
@@ -88,7 +88,8 @@ static void unmask_cic_irq(struct irq_data *d)
 	* Make sure we have IRQ affinity.  It may have changed while
 	* we were processing the IRQ.
 	*/
-	if (!cpumask_test_cpu(smp_processor_id(), d->affinity))
+	if (!cpumask_test_cpu(smp_processor_id(),
+			      irq_data_get_affinity_mask(d)))
 		return;
 #endif
 
diff --git a/arch/mn10300/kernel/cevt-mn10300.c b/arch/mn10300/kernel/cevt-mn10300.c
index 60f64ca1752a..326677d4a3b2 100644
--- a/arch/mn10300/kernel/cevt-mn10300.c
+++ b/arch/mn10300/kernel/cevt-mn10300.c
@@ -123,7 +123,7 @@ int __init init_clockevents(void)
 	{
 		struct irq_data *data;
 		data = irq_get_irq_data(cd->irq);
-		cpumask_copy(data->affinity, cpumask_of(cpu));
+		cpumask_copy(irq_data_get_affinity_mask(data), cpumask_of(cpu));
 		iact->flags |= IRQF_NOBALANCING;
 	}
 #endif
diff --git a/arch/mn10300/kernel/irq.c b/arch/mn10300/kernel/irq.c
index 480de70f4059..c716437baa2c 100644
--- a/arch/mn10300/kernel/irq.c
+++ b/arch/mn10300/kernel/irq.c
@@ -87,7 +87,8 @@ static void mn10300_cpupic_mask_ack(struct irq_data *d)
 		tmp2 = GxICR(irq);
 
 		irq_affinity_online[irq] =
-			cpumask_any_and(d->affinity, cpu_online_mask);
+			cpumask_any_and(irq_data_get_affinity_mask(d),
+					cpu_online_mask);
 		CROSS_GxICR(irq, irq_affinity_online[irq]) =
 			(tmp & (GxICR_LEVEL | GxICR_ENABLE)) | GxICR_DETECT;
 		tmp = CROSS_GxICR(irq, irq_affinity_online[irq]);
@@ -124,7 +125,7 @@ static void mn10300_cpupic_unmask_clear(struct irq_data *d)
 	} else {
 		tmp = GxICR(irq);
 
-		irq_affinity_online[irq] = cpumask_any_and(d->affinity,
+		irq_affinity_online[irq] = cpumask_any_and(irq_data_get_affinity_mask(d),
 							   cpu_online_mask);
 		CROSS_GxICR(irq, irq_affinity_online[irq]) = (tmp & GxICR_LEVEL) | GxICR_ENABLE | GxICR_DETECT;
 		tmp = CROSS_GxICR(irq, irq_affinity_online[irq]);
@@ -316,15 +317,16 @@ void migrate_irqs(void)
 	self = smp_processor_id();
 	for (irq = 0; irq < NR_IRQS; irq++) {
 		struct irq_data *data = irq_get_irq_data(irq);
+		struct cpumask *mask = irq_data_get_affinity_mask(data);
 
 		if (irqd_is_per_cpu(data))
 			continue;
 
-		if (cpumask_test_cpu(self, data->affinity) &&
+		if (cpumask_test_cpu(self, mask) &&
 		    !cpumask_intersects(&irq_affinity[irq], cpu_online_mask)) {
 			int cpu_id;
 			cpu_id = cpumask_first(cpu_online_mask);
-			cpumask_set_cpu(cpu_id, data->affinity);
+			cpumask_set_cpu(cpu_id, mask);
 		}
 		/* We need to operate irq_affinity_online atomically. */
 		arch_local_cli_save(flags);
@@ -335,8 +337,7 @@ void migrate_irqs(void)
 			GxICR(irq) = x & GxICR_LEVEL;
 			tmp = GxICR(irq);
 
-			new = cpumask_any_and(data->affinity,
-					      cpu_online_mask);
+			new = cpumask_any_and(mask, cpu_online_mask);
 			irq_affinity_online[irq] = new;
 
 			CROSS_GxICR(irq, new) =
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index f3191db6e2e9..413ec3c3f9cc 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -131,7 +131,7 @@ static int cpu_set_affinity_irq(struct irq_data *d, const struct cpumask *dest,
 	if (cpu_dest < 0)
 		return -1;
 
-	cpumask_copy(d->affinity, dest);
+	cpumask_copy(irq_data_get_affinity_mask(d), dest);
 
 	return 0;
 }
@@ -339,7 +339,7 @@ unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 {
 #ifdef CONFIG_SMP
 	struct irq_data *d = irq_get_irq_data(irq);
-	cpumask_copy(d->affinity, cpumask_of(cpu));
+	cpumask_copy(irq_data_get_affinity_mask(d), cpumask_of(cpu));
 #endif
 
 	return per_cpu(cpu_data, cpu).txn_addr;
@@ -508,7 +508,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	unsigned long eirr_val;
 	int irq, cpu = smp_processor_id();
 #ifdef CONFIG_SMP
-	struct irq_desc *desc;
+	struct irq_data *irq_data;
 	cpumask_t dest;
 #endif
 
@@ -522,9 +522,9 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	irq = eirr_to_irq(eirr_val);
 
 #ifdef CONFIG_SMP
-	desc = irq_to_desc(irq);
-	cpumask_copy(&dest, desc->irq_data.affinity);
-	if (irqd_is_per_cpu(&desc->irq_data) &&
+	irq_data = irq_get_irq_data(irq);
+	cpumask_copy(&dest, irq_data_get_affinity_mask(irq_data));
+	if (irqd_is_per_cpu(irq_data) &&
 	    !cpumask_test_cpu(smp_processor_id(), &dest)) {
 		int cpu = cpumask_first(&dest);
 
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 45096033d37b..290559df1e8b 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -441,7 +441,7 @@ void migrate_irqs(void)
 
 		chip = irq_data_get_irq_chip(data);
 
-		cpumask_and(mask, data->affinity, map);
+		cpumask_and(mask, irq_data_get_affinity_mask(data), map);
 		if (cpumask_any(mask) >= nr_cpu_ids) {
 			pr_warn("Breaking affinity for irq %i\n", irq);
 			cpumask_copy(mask, map);
diff --git a/arch/powerpc/sysdev/xics/ics-opal.c b/arch/powerpc/sysdev/xics/ics-opal.c
index 68c7e5cc98e0..3996393c254d 100644
--- a/arch/powerpc/sysdev/xics/ics-opal.c
+++ b/arch/powerpc/sysdev/xics/ics-opal.c
@@ -54,7 +54,7 @@ static void ics_opal_unmask_irq(struct irq_data *d)
 	if (hw_irq == XICS_IPI || hw_irq == XICS_IRQ_SPURIOUS)
 		return;
 
-	server = xics_get_irq_server(d->irq, d->affinity, 0);
+	server = xics_get_irq_server(d->irq, irq_data_get_affinity_mask(d), 0);
 	server = ics_opal_mangle_server(server);
 
 	rc = opal_set_xive(hw_irq, server, DEFAULT_PRIORITY);
diff --git a/arch/powerpc/sysdev/xics/ics-rtas.c b/arch/powerpc/sysdev/xics/ics-rtas.c
index 0af97deb83f3..e2665a9dfc0f 100644
--- a/arch/powerpc/sysdev/xics/ics-rtas.c
+++ b/arch/powerpc/sysdev/xics/ics-rtas.c
@@ -47,7 +47,7 @@ static void ics_rtas_unmask_irq(struct irq_data *d)
 	if (hw_irq == XICS_IPI || hw_irq == XICS_IRQ_SPURIOUS)
 		return;
 
-	server = xics_get_irq_server(d->irq, d->affinity, 0);
+	server = xics_get_irq_server(d->irq, irq_data_get_affinity_mask(d), 0);
 
 	call_status = rtas_call(ibm_set_xive, 3, 1, NULL, hw_irq, server,
 				DEFAULT_PRIORITY);
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 8dc677cc136b..6c0378c0b8b5 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -228,15 +228,16 @@ void migrate_irqs(void)
 		struct irq_data *data = irq_get_irq_data(irq);
 
 		if (irq_data_get_node(data) == cpu) {
-			unsigned int newcpu = cpumask_any_and(data->affinity,
+			struct cpumask *mask = irq_data_get_affinity_mask(data);
+			unsigned int newcpu = cpumask_any_and(mask,
 							      cpu_online_mask);
 			if (newcpu >= nr_cpu_ids) {
 				pr_info_ratelimited("IRQ%u no longer affine to CPU%u\n",
 						    irq, cpu);
 
-				cpumask_setall(data->affinity);
+				cpumask_setall(mask);
 			}
-			irq_set_affinity(irq, data->affinity);
+			irq_set_affinity(irq, mask);
 		}
 	}
 }
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index 5130f6e3e68e..e22416ce56ea 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -377,7 +377,8 @@ static void sun4u_irq_enable(struct irq_data *data)
 		unsigned long cpuid, imap, val;
 		unsigned int tid;
 
-		cpuid = irq_choose_cpu(data->irq, data->affinity);
+		cpuid = irq_choose_cpu(data->irq,
+				       irq_data_get_affinity_mask(data));
 		imap = handler_data->imap;
 
 		tid = sun4u_compute_tid(imap, cpuid);
@@ -449,7 +450,8 @@ static void sun4u_irq_eoi(struct irq_data *data)
 
 static void sun4v_irq_enable(struct irq_data *data)
 {
-	unsigned long cpuid = irq_choose_cpu(data->irq, data->affinity);
+	unsigned long cpuid = irq_choose_cpu(data->irq,
+					     irq_data_get_affinity_mask(data));
 	unsigned int ino = irq_data_to_sysino(data);
 	int err;
 
@@ -511,7 +513,7 @@ static void sun4v_virq_enable(struct irq_data *data)
 	unsigned long cpuid;
 	int err;
 
-	cpuid = irq_choose_cpu(data->irq, data->affinity);
+	cpuid = irq_choose_cpu(data->irq, irq_data_get_affinity_mask(data));
 
 	err = sun4v_vintr_set_target(dev_handle, dev_ino, cpuid);
 	if (err != HV_EOK)
@@ -884,8 +886,8 @@ void fixup_irqs(void)
 		if (desc->action && !irqd_is_per_cpu(data)) {
 			if (data->chip->irq_set_affinity)
 				data->chip->irq_set_affinity(data,
-							     data->affinity,
-							     false);
+					irq_data_get_affinity_mask(data),
+					false);
 		}
 		raw_spin_unlock_irqrestore(&desc->lock, flags);
 	}
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index 9bbb8f2bbfcc..0299f052a2ef 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -126,7 +126,7 @@ static int leon_set_affinity(struct irq_data *data, const struct cpumask *dest,
 	int oldcpu, newcpu;
 
 	mask = (unsigned long)data->chip_data;
-	oldcpu = irq_choose_cpu(data->affinity);
+	oldcpu = irq_choose_cpu(irq_data_get_affinity_mask(data));
 	newcpu = irq_choose_cpu(dest);
 
 	if (oldcpu == newcpu)
@@ -149,7 +149,7 @@ static void leon_unmask_irq(struct irq_data *data)
 	int cpu;
 
 	mask = (unsigned long)data->chip_data;
-	cpu = irq_choose_cpu(data->affinity);
+	cpu = irq_choose_cpu(irq_data_get_affinity_mask(data));
 	spin_lock_irqsave(&leon_irq_lock, flags);
 	oldmask = LEON3_BYPASS_LOAD_PA(LEON_IMASK(cpu));
 	LEON3_BYPASS_STORE_PA(LEON_IMASK(cpu), (oldmask | mask));
@@ -162,7 +162,7 @@ static void leon_mask_irq(struct irq_data *data)
 	int cpu;
 
 	mask = (unsigned long)data->chip_data;
-	cpu = irq_choose_cpu(data->affinity);
+	cpu = irq_choose_cpu(irq_data_get_affinity_mask(data));
 	spin_lock_irqsave(&leon_irq_lock, flags);
 	oldmask = LEON3_BYPASS_LOAD_PA(LEON_IMASK(cpu));
 	LEON3_BYPASS_STORE_PA(LEON_IMASK(cpu), (oldmask & ~mask));
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 845dc0df2002..09921de4210f 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2541,7 +2541,7 @@ void __init setup_ioapic_dest(void)
 		 * Honour affinities which have been set in early boot
 		 */
 		if (!irqd_can_balance(idata) || irqd_affinity_was_set(idata))
-			mask = idata->affinity;
+			mask = irq_data_get_affinity_mask(idata);
 		else
 			mask = apic->target_cpus();
 
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 9b62f690b0ff..dfa3a5f5b3d3 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -494,9 +494,8 @@ static int apic_set_affinity(struct irq_data *irq_data,
 
 	err = assign_irq_vector(irq, data, dest);
 	if (err) {
-		struct irq_data *top = irq_get_irq_data(irq);
-
-		if (assign_irq_vector(irq, data, top->affinity))
+		if (assign_irq_vector(irq, data,
+				      irq_data_get_affinity_mask(irq_data)))
 			pr_err("Failed to recover vector for irq %d\n", irq);
 		return err;
 	}
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index be3894512820..e0bca24b300b 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -304,7 +304,8 @@ int check_irq_vectors_for_cpu_disable(void)
 				continue;
 
 			data = irq_desc_get_irq_data(desc);
-			cpumask_copy(&affinity_new, data->affinity);
+			cpumask_copy(&affinity_new,
+				     irq_data_get_affinity_mask(data));
 			cpumask_clear_cpu(this_cpu, &affinity_new);
 
 			/* Do not count inactive or per-cpu irqs. */
@@ -382,7 +383,7 @@ void fixup_irqs(void)
 		raw_spin_lock(&desc->lock);
 
 		data = irq_desc_get_irq_data(desc);
-		affinity = data->affinity;
+		affinity = irq_data_get_affinity_mask(data);
 		if (!irq_has_action(irq) || irqd_is_per_cpu(data) ||
 		    cpumask_subset(affinity, cpu_online_mask)) {
 			raw_spin_unlock(&desc->lock);
diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
index 3eee94f621eb..d7b5a4c8ae5d 100644
--- a/arch/xtensa/kernel/irq.c
+++ b/arch/xtensa/kernel/irq.c
@@ -166,23 +166,25 @@ void migrate_irqs(void)
 
 	for_each_active_irq(i) {
 		struct irq_data *data = irq_get_irq_data(i);
+		struct cpumask *mask;
 		unsigned int newcpu;
 
 		if (irqd_is_per_cpu(data))
 			continue;
 
-		if (!cpumask_test_cpu(cpu, data->affinity))
+		mask = irq_data_get_affinity_mask(data);
+		if (!cpumask_test_cpu(cpu, mask))
 			continue;
 
-		newcpu = cpumask_any_and(data->affinity, cpu_online_mask);
+		newcpu = cpumask_any_and(mask, cpu_online_mask);
 
 		if (newcpu >= nr_cpu_ids) {
 			pr_info_ratelimited("IRQ%u no longer affine to CPU%u\n",
 					    i, cpu);
 
-			cpumask_setall(data->affinity);
+			cpumask_setall(mask);
 		}
-		irq_set_affinity(i, data->affinity);
+		irq_set_affinity(i, mask);
 	}
 }
 #endif /* CONFIG_HOTPLUG_CPU */
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index 57f09cb54464..09257c301bd2 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -403,7 +403,7 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *cpumask,
 		clear_bit(irq, pcpu_masks[i].pcpu_mask);
 	set_bit(irq, pcpu_masks[cpumask_first(&tmp)].pcpu_mask);
 
-	cpumask_copy(d->affinity, cpumask);
+	cpumask_copy(irq_data_get_affinity_mask(d), cpumask);
 	spin_unlock_irqrestore(&gic_lock, flags);
 
 	return IRQ_SET_MASK_OK_NOCOPY;
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 9ee04b4b68bf..144c77dfe4b1 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -691,7 +691,7 @@ static int iosapic_set_affinity_irq(struct irq_data *d,
 	if (dest_cpu < 0)
 		return -1;
 
-	cpumask_copy(d->affinity, cpumask_of(dest_cpu));
+	cpumask_copy(irq_data_get_affinity_mask(d), cpumask_of(dest_cpu));
 	vi->txn_addr = txn_affinity_addr(d->irq, dest_cpu);
 
 	spin_lock_irqsave(&iosapic_lock, flags);
diff --git a/drivers/sh/intc/chip.c b/drivers/sh/intc/chip.c
index 46427b48e2f1..358df7510186 100644
--- a/drivers/sh/intc/chip.c
+++ b/drivers/sh/intc/chip.c
@@ -22,7 +22,7 @@ void _intc_enable(struct irq_data *data, unsigned long handle)
 
 	for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_E(handle)); cpu++) {
 #ifdef CONFIG_SMP
-		if (!cpumask_test_cpu(cpu, data->affinity))
+		if (!cpumask_test_cpu(cpu, irq_data_get_affinity_mask(data)))
 			continue;
 #endif
 		addr = INTC_REG(d, _INTC_ADDR_E(handle), cpu);
@@ -50,7 +50,7 @@ static void intc_disable(struct irq_data *data)
 
 	for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_D(handle)); cpu++) {
 #ifdef CONFIG_SMP
-		if (!cpumask_test_cpu(cpu, data->affinity))
+		if (!cpumask_test_cpu(cpu, irq_data_get_affinity_mask(data)))
 			continue;
 #endif
 		addr = INTC_REG(d, _INTC_ADDR_D(handle), cpu);
@@ -72,7 +72,7 @@ static int intc_set_affinity(struct irq_data *data,
 	if (!cpumask_intersects(cpumask, cpu_online_mask))
 		return -1;
 
-	cpumask_copy(data->affinity, cpumask);
+	cpumask_copy(irq_data_get_affinity_mask(data), cpumask);
 
 	return IRQ_SET_MASK_OK_NOCOPY;
 }
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 2b8553bd8715..d00e0be8e9ea 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -336,7 +336,7 @@ static void bind_evtchn_to_cpu(unsigned int chn, unsigned int cpu)
 
 	BUG_ON(irq == -1);
 #ifdef CONFIG_SMP
-	cpumask_copy(irq_get_irq_data(irq)->affinity, cpumask_of(cpu));
+	cpumask_copy(irq_get_affinity_mask(irq), cpumask_of(cpu));
 #endif
 	xen_evtchn_port_bind_to_cpu(info, cpu);
 
@@ -373,7 +373,7 @@ static void xen_irq_init(unsigned irq)
 	struct irq_info *info;
 #ifdef CONFIG_SMP
 	/* By default all event channels notify CPU#0. */
-	cpumask_copy(irq_get_irq_data(irq)->affinity, cpumask_of(0));
+	cpumask_copy(irq_get_affinity_mask(irq), cpumask_of(0));
 #endif
 
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 43581e166298..2eb82257aaee 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -650,6 +650,18 @@ static inline int irq_data_get_node(struct irq_data *d)
 	return irq_common_data_get_node(d->common);
 }
 
+static inline struct cpumask *irq_get_affinity_mask(int irq)
+{
+	struct irq_data *d = irq_get_irq_data(irq);
+
+	return d ? d->affinity : NULL;
+}
+
+static inline struct cpumask *irq_data_get_affinity_mask(struct irq_data *d)
+{
+	return d->affinity;
+}
+
 unsigned int arch_dynirq_lower_bound(unsigned int from);
 
 int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node,
-- 
1.7.10.4




From - Thu Nov 08 21:37:30 2018
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From: Thomas Gleixner <tglx@linutronix.de>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.kernel.pci,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [Patch v2 08/14] genirq: Introduce helper function
 irq_data_get_affinity_mask()
Date: Wed, 20 May 2015 16:50:03 +0200 (CEST)
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References: <1432114845-24304-1-git-send-email-jiang.liu@linux.intel.com> <1432114845-24304-9-git-send-email-jiang.liu@linux.intel.com>
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Cc: Bjorn Helgaas <bhelgaas@google.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Randy Dunlap <rdunlap@infradead.org>,
        Yinghai Lu <yinghai@kernel.org>,
        Borislav Petkov <bp@alien8.de>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Russell King <linux@arm.linux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Steven Miao <realmz6@gmail.com>,
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        Fenghua Yu <fenghua.yu@intel.com>,
        James Hogan <james.hogan@imgtec.com>,
        Ralf Baechle <ralf@linux-mips.org>,
        David Howells <dhowells@redhat.com>,
To: Jiang Liu <jiang.liu@linux.intel.com>
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On Wed, 20 May 2015, Jiang Liu wrote:

> Introduce helper function irq_data_get_affinity_mask() and
> irq_get_affinity_mask() to hide implementation details,

That patch does way more than introducing the functions. Again:

Patch 1: Introduce helpers

Patch 2-n: Convert users subsystem wise

Thanks,

	tglx



From - Thu Nov 08 21:37:30 2018
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From: Russell King - ARM Linux <linux@arm.linux.org.uk>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.kernel.pci,gmane.linux.acpi.devel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [Patch v2 08/14] genirq: Introduce helper function
 irq_data_get_affinity_mask()
Date: Wed, 20 May 2015 20:34:26 +0100
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References: <1432114845-24304-1-git-send-email-jiang.liu@linux.intel.com>
 <1432114845-24304-9-git-send-email-jiang.liu@linux.intel.com>
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Cc: Thomas Gleixner <tglx@linutronix.de>,
        Bjorn Helgaas <bhelgaas@google.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Randy Dunlap <rdunlap@infradead.org>,
        Yinghai Lu <yinghai@kernel.org>,
        Borislav Petkov <bp@alien8.de>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Steven Miao <realmz6@gmail.com>,
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        Fenghua Yu <fenghua.yu@intel.com>,
        James Hogan <james.hogan@imgtec.com>,
        Ralf Baechle <ralf@linux-mips.org>,
        David Howells <dhowells@redhat.com>,
To: Jiang Liu <jiang.liu@linux.intel.com>
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On Wed, May 20, 2015 at 05:40:39PM +0800, Jiang Liu wrote:
> diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
> index 350f188c92d2..baf8edebe26f 100644
> --- a/arch/arm/kernel/irq.c
> +++ b/arch/arm/kernel/irq.c
> @@ -140,7 +140,7 @@ int __init arch_probe_nr_irqs(void)
>  static bool migrate_one_irq(struct irq_desc *desc)
>  {
>  	struct irq_data *d = irq_desc_get_irq_data(desc);
> -	const struct cpumask *affinity = d->affinity;
> +	const struct cpumask *affinity = irq_data_get_affinity_mask(d);
>  	struct irq_chip *c;
>  	bool ret = false;
>  
> @@ -160,7 +160,7 @@ static bool migrate_one_irq(struct irq_desc *desc)
>  	if (!c->irq_set_affinity)
>  		pr_debug("IRQ%u: unable to set affinity\n", d->irq);
>  	else if (c->irq_set_affinity(d, affinity, false) == IRQ_SET_MASK_OK && ret)
> -		cpumask_copy(d->affinity, affinity);
> +		cpumask_copy(irq_data_get_affinity_mask(d), affinity);
>  
>  	return ret;
>  }

> diff --git a/include/linux/irq.h b/include/linux/irq.h
> index 43581e166298..2eb82257aaee 100644
> --- a/include/linux/irq.h
> +++ b/include/linux/irq.h
> @@ -650,6 +650,18 @@ static inline int irq_data_get_node(struct irq_data *d)
>  	return irq_common_data_get_node(d->common);
>  }
>  
> +static inline struct cpumask *irq_get_affinity_mask(int irq)
> +{
> +	struct irq_data *d = irq_get_irq_data(irq);
> +
> +	return d ? d->affinity : NULL;
> +}
> +
> +static inline struct cpumask *irq_data_get_affinity_mask(struct irq_data *d)
> +{
> +	return d->affinity;
> +}
> +
>  unsigned int arch_dynirq_lower_bound(unsigned int from);
>  
>  int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node,

For the above only,

Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>

Thanks.

-- 
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.



From - Thu Nov 08 21:37:30 2018
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From: Luis Henriques <luis.henriques-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
Newsgroups: gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ubuntu.devel.kernel.general
Subject: [3.16.y-ckt stable] Patch "parisc,metag: Fix crashes due to stack randomization on stack-grows-upwards architectures" has been added to staging queue
Date: Thu, 28 May 2015 11:56:49 +0100
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Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>,
	linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Luis Henriques <luis.henriques-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>,
	kernel-team-nLRlyDuq1AZFpShjVBNYrg@public.gmane.org
To: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/511>

This is a note to let you know that I have just added a patch titled

    parisc,metag: Fix crashes due to stack randomization on stack-grows-upwards architectures

to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt13.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 441b34775e8375194ce741e53f0e19241749ef35 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
Date: Mon, 11 May 2015 22:01:27 +0200
Subject: parisc,metag: Fix crashes due to stack randomization on
 stack-grows-upwards architectures

commit d045c77c1a69703143a36169c224429c48b9eecd upstream.

On architectures where the stack grows upwards (CONFIG_STACK_GROWSUP=y,
currently parisc and metag only) stack randomization sometimes leads to crashes
when the stack ulimit is set to lower values than STACK_RND_MASK (which is 8 MB
by default if not defined in arch-specific headers).

The problem is, that when the stack vm_area_struct is set up in fs/exec.c, the
additional space needed for the stack randomization (as defined by the value of
STACK_RND_MASK) was not taken into account yet and as such, when the stack
randomization code added a random offset to the stack start, the stack
effectively got smaller than what the user defined via rlimit_max(RLIMIT_STACK)
which then sometimes leads to out-of-stack situations and crashes.

This patch fixes it by adding the maximum possible amount of memory (based on
STACK_RND_MASK) which theoretically could be added by the stack randomization
code to the initial stack size. That way, the user-defined stack size is always
guaranteed to be at minimum what is defined via rlimit_max(RLIMIT_STACK).

This bug is currently not visible on the metag architecture, because on metag
STACK_RND_MASK is defined to 0 which effectively disables stack randomization.

The changes to fs/exec.c are inside an "#ifdef CONFIG_STACK_GROWSUP"
section, so it does not affect other platformws beside those where the
stack grows upwards (parisc and metag).

Signed-off-by: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Signed-off-by: Luis Henriques <luis.henriques-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
---
 arch/parisc/include/asm/elf.h   | 4 ++++
 arch/parisc/kernel/sys_parisc.c | 3 +++
 fs/exec.c                       | 3 +++
 3 files changed, 10 insertions(+)

diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index 3391d061eccc..78c9fd32c554 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -348,6 +348,10 @@ struct pt_regs;	/* forward declaration... */

 #define ELF_HWCAP	0

+#define STACK_RND_MASK	(is_32bit_task() ? \
+				0x7ff >> (PAGE_SHIFT - 12) : \
+				0x3ffff >> (PAGE_SHIFT - 12))
+
 struct mm_struct;
 extern unsigned long arch_randomize_brk(struct mm_struct *);
 #define arch_randomize_brk arch_randomize_brk
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index e1ffea2f9a0b..5aba01ac457f 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -77,6 +77,9 @@ static unsigned long mmap_upper_limit(void)
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;

+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }

diff --git a/fs/exec.c b/fs/exec.c
index 68a0843250c9..993ed0aba99a 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -662,6 +662,9 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;

+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
 		return -ENOMEM;

From - Thu Nov 08 21:37:30 2018
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Subject: [PATCH 10/15] parisc: don't use module_init for non-modular core pdc_cons code
Date: Thu, 28 May 2015 20:48:08 -0400
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	Helge Deller <deller@gmx.de>, <linux-parisc@vger.kernel.org>
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The pdc_cons.c code is always built in.  It will never be modular,
so using module_init as an alias for __initcall is rather
misleading.

Fix this up now, so that we can relocate module_init from
init.h into module.h in the future.  If we don't do this, we'd
have to add module.h to obviously non-modular code, and that
would be a worse thing.

Direct use of __initcall is discouraged, vs prioritized ones.
Use of device_initcall is consistent with what __initcall
maps onto, and hence does not change the init order, making the
impact of this change zero.   Should someone with real hardware
for boot testing want to change it later to arch_initcall or
something different, they can do that at a later date.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 arch/parisc/kernel/pdc_cons.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index d5cae55195ec..10a5ae9553fd 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -207,8 +207,7 @@ static int __init pdc_console_tty_driver_init(void)
 
 	return 0;
 }
-
-module_init(pdc_console_tty_driver_init);
+device_initcall(pdc_console_tty_driver_init);
 
 static struct tty_driver * pdc_console_device (struct console *c, int *index)
 {
-- 
2.2.1


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Subject: [PATCH 11/15] parisc64: don't use module_init for non-modular core perf code
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	Helge Deller <deller@gmx.de>, <linux-parisc@vger.kernel.org>
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The perf.c code depends on CONFIG_64BIT, so it is either built-in
or absent.  It will never be modular, so using module_init as an
alias for __initcall is rather misleading.

Fix this up now, so that we can relocate module_init from
init.h into module.h in the future.  If we don't do this, we'd
have to add module.h to obviously non-modular code, and that
would be a worse thing.  Aside from it not making sense, it also
causes a ~10% increase in CPP overhead due to module.h having a
large list of headers itself -- for example compare line counts:

 device_initcall() and <linux/init.h>
	20238 arch/parisc/kernel/perf.i

 module_init() and <linux/module.h>
	22194 arch/parisc/kernel/perf.i

Direct use of __initcall is discouraged, vs prioritized ones.
Use of device_initcall is consistent with what __initcall
maps onto, and hence does not change the init order, making the
impact of this change zero.   Should someone with real hardware
for boot testing want to change it later to arch_initcall or
something different, they can do that at a later date.

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 arch/parisc/kernel/perf.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index ba0c053e25ae..518f4f5f1f43 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -543,6 +543,7 @@ static int __init perf_init(void)
 
 	return 0;
 }
+device_initcall(perf_init);
 
 /*
  * perf_start_counters(void)
@@ -847,5 +848,3 @@ printk("perf_rdr_write\n");
 	}
 printk("perf_rdr_write done\n");
 }
-
-module_init(perf_init);
-- 
2.2.1


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Subject: [PATCH 00/15] Replace module_init with device_initcall in non modules
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Cc: linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/416834>

This series of commits converts non-modular code that is using
the module_init() call to hook itself into the system to instead
use device_initcall().

The conversion is a runtime no-op, since module_init actually
becomes __initcall in the non-modular case, and that in turn gets
mapped onto device_initcall.

We fix this up now, so that we can relocate module_init from
init.h into module.h in a future series.

The files changed here are just limited to those that would
otherwise have to add module.h to obviously non-modular code, since
we don't want to do that.

This work is factored out from what was a previously larger series[1] so
that there is a common theme and lower patch count to ease review.

Paul.

[1] https://marc.info/?l=linux-kernel&m=139033951228828

---

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: David Howells <dhowells@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Meyer <thomas@m3y3r.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-am33-list@redhat.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-cris-kernel@axis.com
Cc: linux-ia64@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-sh@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: x86@kernel.org

Paul Gortmaker (15):
  x86: don't use module_init in non-modular intel_mid_vrtc.c
  x86: don't use module_init in non-modular devicetree.c code
  powerpc: use device_initcall for registering rtc devices
  powerpc: don't use module_init in non-modular 83xx suspend code
  arm: don't use module_init in non-modular mach-vexpress/spc.c code
  alpha: don't use module_init for non-modular core code
  ia64: don't use module_init for non-modular core kernel/mca.c code
  ia64: don't use module_init in non-modular sim/simscsi.c code
  cris: don't use module_init for non-modular core intmem.c code
  parisc: don't use module_init for non-modular core pdc_cons code
  parisc64: don't use module_init for non-modular core perf code
  mn10300: don't use module_init in non-modular flash.c code
  sh: don't use module_init in non-modular psw.c code
  xtensa: don't use module_init for non-modular core network.c code
  drivers/clk: don't use module_init in clk-nomadik.c which is
    non-modular

 arch/alpha/kernel/srmcons.c                  |  3 +--
 arch/arm/mach-vexpress/spc.c                 |  2 +-
 arch/cris/arch-v32/mm/intmem.c               |  3 +--
 arch/ia64/hp/sim/simscsi.c                   | 11 +----------
 arch/ia64/sn/kernel/mca.c                    |  3 +--
 arch/mn10300/unit-asb2303/flash.c            |  3 +--
 arch/parisc/kernel/pdc_cons.c                |  3 +--
 arch/parisc/kernel/perf.c                    |  3 +--
 arch/powerpc/kernel/time.c                   |  2 +-
 arch/powerpc/platforms/83xx/suspend.c        |  3 +--
 arch/powerpc/platforms/ps3/time.c            |  3 +--
 arch/sh/boards/mach-landisk/psw.c            |  2 +-
 arch/x86/kernel/devicetree.c                 |  2 +-
 arch/x86/platform/intel-mid/intel_mid_vrtc.c |  3 +--
 arch/xtensa/platforms/iss/network.c          |  4 +---
 drivers/clk/clk-nomadik.c                    |  3 +--
 16 files changed, 16 insertions(+), 37 deletions(-)

-- 
2.2.1

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Cc: Eric B Munson <emunson@akamai.com>,
	Shuah Khan <shuahkh@osg.samsung.com>,
	Michal Hocko <mhocko@suse.cz>,
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To: Andrew Morton <akpm@linux-foundation.org>
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Xref: news.gmane.org gmane.linux.kernel.mm:133433 gmane.linux.ports.alpha:3103 gmane.linux.kernel:1965378 gmane.linux.ports.mips.general:48875 gmane.linux.ports.parisc:25744 gmane.linux.ports.ppc64.devel:113631 gmane.linux.ports.sparc:21075 gmane.linux.kernel.cross-arch:27876 gmane.linux.kernel.api:11614
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/133433>

mlock() allows a user to control page out of program memory, but this
comes at the cost of faulting in the entire mapping when it is
allocated.  For large mappings where the entire area is not necessary
this is not ideal.

This series introduces new flags for mmap() and mlockall() that allow a
user to specify that the covered are should not be paged out, but only
after the memory has been used the first time.

There are two main use cases that this set covers.  The first is the
security focussed mlock case.  A buffer is needed that cannot be written
to swap.  The maximum size is known, but on average the memory used is
significantly less than this maximum.  With lock on fault, the buffer
is guaranteed to never be paged out without consuming the maximum size
every time such a buffer is created.

The second use case is focussed on performance.  Portions of a large
file are needed and we want to keep the used portions in memory once
accessed.  This is the case for large graphical models where the path
through the graph is not known until run time.  The entire graph is
unlikely to be used in a given invocation, but once a node has been
used it needs to stay resident for further processing.  Given these
constraints we have a number of options.  We can potentially waste a
large amount of memory by mlocking the entire region (this can also
cause a significant stall at startup as the entire file is read in).
We can mlock every page as we access them without tracking if the page
is already resident but this introduces large overhead for each access.
The third option is mapping the entire region with PROT_NONE and using
a signal handler for SIGSEGV to mprotect(PROT_READ) and mlock() the
needed page.  Doing this page at a time adds a significant performance
penalty.  Batching can be used to mitigate this overhead, but in order
to safely avoid trying to mprotect pages outside of the mapping, the
boundaries of each mapping to be used in this way must be tracked and
available to the signal handler.  This is precisely what the mm system
in the kernel should already be doing.

To illustrate the benefit of this patch I wrote a test program that
mmaps a 5 GB file filled with random data and then makes 15,000,000
accesses to random addresses in that mapping.  The test program was run
20 times for each setup.  Results are reported for two program portions,
setup and execution.  The setup phase is calling mmap and optionally
mlock on the entire region.  For most experiments this is trivial, but
it highlights the cost of faulting in the entire region.  Results are
averages across the 20 runs in milliseconds.

mmap with MAP_LOCKED:
Setup avg:      11821.193
Processing avg: 3404.286

mmap with mlock() before each access:
Setup avg:      0.054
Processing avg: 34263.201

mmap with PROT_NONE and signal handler and batch size of 1 page:
With the default value in max_map_count, this gets ENOMEM as I attempt
to change the permissions, after upping the sysctl significantly I get:
Setup avg:      0.050
Processing avg: 67690.625

mmap with PROT_NONE and signal handler and batch size of 8 pages:
Setup avg:      0.098
Processing avg: 37344.197

mmap with PROT_NONE and signal handler and batch size of 16 pages:
Setup avg:      0.0548
Processing avg: 29295.669

mmap with MAP_LOCKONFAULT:
Setup avg:      0.073
Processing avg: 18392.136

The signal handler in the batch cases faulted in memory in two steps to
avoid having to know the start and end of the faulting mapping.  The
first step covers the page that caused the fault as we know that it will
be possible to lock.  The second step speculatively tries to mlock and
mprotect the batch size - 1 pages that follow.  There may be a clever
way to avoid this without having the program track each mapping to be
covered by this handeler in a globally accessible structure, but I could
not find it.  It should be noted that with a large enough batch size
this two step fault handler can still cause the program to crash if it
reaches far beyond the end of the mapping.

These results show that if the developer knows that a majority of the
mapping will be used, it is better to try and fault it in at once,
otherwise MAP_LOCKONFAULT is significantly faster.

The performance cost of these patches are minimal on the two benchmarks
I have tested (stream and kernbench).  The following are the average
values across 20 runs of each benchmark after a warmup run whose
results were discarded.

Avg throughput in MB/s from stream using 1000000 element arrays
Test     4.1-rc2      4.1-rc2+lock-on-fault
Copy:    10,979.08    10,917.34
Scale:   11,094.45    11,023.01
Add:     12,487.29    12,388.65
Triad:   12,505.77    12,418.78

Kernbench optimal load
                 4.1-rc2  4.1-rc2+lock-on-fault
Elapsed Time     71.046   71.324
User Time        62.117   62.352
System Time      8.926    8.969
Context Switches 14531.9  14542.5
Sleeps           14935.9  14939

Eric B Munson (3):
  Add flag to request pages are locked after page fault
  Add mlockall flag for locking pages on fault
  Add tests for lock on fault

 arch/alpha/include/uapi/asm/mman.h          |   2 +
 arch/mips/include/uapi/asm/mman.h           |   2 +
 arch/parisc/include/uapi/asm/mman.h         |   2 +
 arch/powerpc/include/uapi/asm/mman.h        |   2 +
 arch/sparc/include/uapi/asm/mman.h          |   2 +
 arch/tile/include/uapi/asm/mman.h           |   2 +
 arch/xtensa/include/uapi/asm/mman.h         |   2 +
 include/linux/mm.h                          |   1 +
 include/linux/mman.h                        |   3 +-
 include/uapi/asm-generic/mman.h             |   2 +
 mm/mlock.c                                  |  13 ++-
 mm/mmap.c                                   |   4 +-
 mm/swap.c                                   |   3 +-
 tools/testing/selftests/vm/Makefile         |   8 +-
 tools/testing/selftests/vm/lock-on-fault.c  | 145 ++++++++++++++++++++++++++++
 tools/testing/selftests/vm/on-fault-limit.c |  47 +++++++++
 tools/testing/selftests/vm/run_vmtests      |  23 +++++
 17 files changed, 254 insertions(+), 9 deletions(-)
 create mode 100644 tools/testing/selftests/vm/lock-on-fault.c
 create mode 100644 tools/testing/selftests/vm/on-fault-limit.c

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org

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From - Thu Nov 08 21:37:31 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [RESEND PATCH 1/3] Add flag to request pages are locked after page fault
Date: Fri, 29 May 2015 10:13:26 -0400
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Approved: news@gmane.org
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Cc: Eric B Munson <emunson@akamai.com>,
	linux-alpha@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-mips@linux-mips.org,
	linux-parisc@vger.kernel.org,
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	linux-api@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/133434>

The cost of faulting in all memory to be locked can be very high when
working with large mappings.  If only portions of the mapping will be
used this can incur a high penalty for locking.  This patch introduces
the ability to request that pages are not pre-faulted, but are placed on
the unevictable LRU when they are finally faulted in.

To keep accounting checks out of the page fault path, users are billed
for the entire mapping lock as if MAP_LOCKED was used.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
---
 arch/alpha/include/uapi/asm/mman.h   | 1 +
 arch/mips/include/uapi/asm/mman.h    | 1 +
 arch/parisc/include/uapi/asm/mman.h  | 1 +
 arch/powerpc/include/uapi/asm/mman.h | 1 +
 arch/sparc/include/uapi/asm/mman.h   | 1 +
 arch/tile/include/uapi/asm/mman.h    | 1 +
 arch/xtensa/include/uapi/asm/mman.h  | 1 +
 include/linux/mm.h                   | 1 +
 include/linux/mman.h                 | 3 ++-
 include/uapi/asm-generic/mman.h      | 1 +
 mm/mmap.c                            | 4 ++--
 mm/swap.c                            | 3 ++-
 12 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..15e96e1 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -30,6 +30,7 @@
 #define MAP_NONBLOCK	0x40000		/* do not block on IO */
 #define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x200000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_SYNC		2		/* synchronous memory sync */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..47846a5 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -48,6 +48,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 /*
  * Flags for msync
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..1514cd7 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -24,6 +24,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_SYNC		1		/* synchronous memory sync */
 #define MS_ASYNC	2		/* sync memory asynchronously */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 6ea26df..fce74fe 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -27,5 +27,6 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 #endif /* _UAPI_ASM_POWERPC_MMAN_H */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 0b14df3..12425d8 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -22,6 +22,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 
 #endif /* _UAPI__SPARC_MMAN_H__ */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index 81b8fc3..ec04eaf 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -29,6 +29,7 @@
 #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
 #define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
 #define MAP_HUGETLB	0x4000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x8000		/* Lock pages after they are faulted in, do not prefault */
 
 
 /*
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..42d43cc 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -55,6 +55,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 #ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
 # define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be
 					 * uninitialized */
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0755b9f..3e31457 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -126,6 +126,7 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_PFNMAP	0x00000400	/* Page-ranges managed without "struct page", just pure PFN */
 #define VM_DENYWRITE	0x00000800	/* ETXTBSY on write attempts.. */
 
+#define VM_LOCKONFAULT	0x00001000	/* Lock the pages covered when they are faulted in */
 #define VM_LOCKED	0x00002000
 #define VM_IO           0x00004000	/* Memory mapped I/O or similar */
 
diff --git a/include/linux/mman.h b/include/linux/mman.h
index 16373c8..437264b 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -86,7 +86,8 @@ calc_vm_flag_bits(unsigned long flags)
 {
 	return _calc_vm_trans(flags, MAP_GROWSDOWN,  VM_GROWSDOWN ) |
 	       _calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
-	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    );
+	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    ) |
+	       _calc_vm_trans(flags, MAP_LOCKONFAULT,VM_LOCKONFAULT);
 }
 
 unsigned long vm_commit_limit(void);
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index e9fe6fd..fc4e586 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -12,6 +12,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 /* Bits [26:31] are reserved, see mman-common.h for MAP_HUGETLB usage */
 
diff --git a/mm/mmap.c b/mm/mmap.c
index bb50cac..ba1a6bf 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1233,7 +1233,7 @@ static inline int mlock_future_check(struct mm_struct *mm,
 	unsigned long locked, lock_limit;
 
 	/*  mlock MCL_FUTURE? */
-	if (flags & VM_LOCKED) {
+	if (flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 		locked = len >> PAGE_SHIFT;
 		locked += mm->locked_vm;
 		lock_limit = rlimit(RLIMIT_MEMLOCK);
@@ -1301,7 +1301,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 	vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
 			mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
 
-	if (flags & MAP_LOCKED)
+	if (flags & (MAP_LOCKED | MAP_LOCKONFAULT))
 		if (!can_do_mlock())
 			return -EPERM;
 
diff --git a/mm/swap.c b/mm/swap.c
index a7251a8..07c905e 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -711,7 +711,8 @@ void lru_cache_add_active_or_unevictable(struct page *page,
 {
 	VM_BUG_ON_PAGE(PageLRU(page), page);
 
-	if (likely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) != VM_LOCKED)) {
+	if (likely((vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) == 0) ||
+		   (vma->vm_flags & VM_SPECIAL)) {
 		SetPageActive(page);
 		lru_cache_add(page);
 		return;
-- 
1.9.1

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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [RESEND PATCH 2/3] Add mlockall flag for locking pages on fault
Date: Fri, 29 May 2015 10:13:27 -0400
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/133436>

Building on the previous patch, extend mlockall() to give a process a
way to specify that pages should be locked when they are faulted in, but
that pre-faulting is not needed.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
Cc: linux-mm@kvack.org
---
 arch/alpha/include/uapi/asm/mman.h   |  1 +
 arch/mips/include/uapi/asm/mman.h    |  1 +
 arch/parisc/include/uapi/asm/mman.h  |  1 +
 arch/powerpc/include/uapi/asm/mman.h |  1 +
 arch/sparc/include/uapi/asm/mman.h   |  1 +
 arch/tile/include/uapi/asm/mman.h    |  1 +
 arch/xtensa/include/uapi/asm/mman.h  |  1 +
 include/uapi/asm-generic/mman.h      |  1 +
 mm/mlock.c                           | 13 +++++++++----
 9 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 15e96e1..3120dfb 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -38,6 +38,7 @@
 
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
+#define MCL_ON_FAULT	32768		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 47846a5..82aec3c 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -62,6 +62,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ON_FAULT	4		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 1514cd7..f4601f3 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -32,6 +32,7 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ON_FAULT	4		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index fce74fe..0a28efc 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -22,6 +22,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ON_FAULT	0x80000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 12425d8..119be80 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -17,6 +17,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ON_FAULT	0x80000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index ec04eaf..66ea935 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -37,6 +37,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ON_FAULT	4		/* lock all pages that are faulted in */
 
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 42d43cc..9abcc29 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -75,6 +75,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ON_FAULT	4		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index fc4e586..6ac7a7b 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -18,5 +18,6 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ON_FAULT	4		/* lock all pages that are faulted in */
 
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/mm/mlock.c b/mm/mlock.c
index 6fd2cf1..1406835 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -579,7 +579,7 @@ static int do_mlock(unsigned long start, size_t len, int on)
 
 		/* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
+		newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
 		if (on)
 			newflags |= VM_LOCKED;
 
@@ -662,13 +662,17 @@ static int do_mlockall(int flags)
 		current->mm->def_flags |= VM_LOCKED;
 	else
 		current->mm->def_flags &= ~VM_LOCKED;
-	if (flags == MCL_FUTURE)
+	if (flags & MCL_ON_FAULT)
+		current->mm->def_flags |= VM_LOCKONFAULT;
+	else
+		current->mm->def_flags &= ~VM_LOCKONFAULT;
+	if (flags == MCL_FUTURE || flags == MCL_ON_FAULT)
 		goto out;
 
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
+		newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
 		if (flags & MCL_CURRENT)
 			newflags |= VM_LOCKED;
 
@@ -685,7 +689,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	unsigned long lock_limit;
 	int ret = -EINVAL;
 
-	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
+	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ON_FAULT)) ||
+	    ((flags & MCL_FUTURE) && (flags & MCL_ON_FAULT)))
 		goto out;
 
 	ret = -EPERM;
-- 
1.9.1

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From - Thu Nov 08 21:37:31 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH][RFC] parisc: Optimize TLB flush functions based on timing
 results
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This patch optimizes the TLB flushing functions flush_tlb_mm() and
__flush_tlb_range() in a way that it adds timing routines to calculate
the optimal size up to which flushes of small TLB ranges perform faster
than when performing a full TLB shootdown.

Here are some timing results for a rp5470 and J5000 machine:

Machine: rp5470, PA8700, 875 MHz
I-cache         : 768 KB
D-cache         : 1536 KB (WB, direct mapped)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB

Whole cache flush 692084 cycles, flushing 13214592 bytes 5904392 cycles
Setting cache flush threshold to 1512 kB.
Whole TLB flush 40990 cycles, flushing 4096000 bytes 448989 cycles
Setting TLB flush threshold to 368 kB.

Machine: J5000/785, PA8500, 440MHz
I-cache         : 512 KB
D-cache         : 1024 KB (WB, direct mapped)
ITLB entries    : 160
DTLB entries    : 160 - shared with ITLB

Whole cache flush 268605 cycles, flushing 13214592 bytes 1861037 cycles
Setting cache flush threshold to 1024 kB
Whole TLB flush 14131 cycles, flushing 13221888 bytes 769329 cycles
Setting TLB flush threshold to 240 kB

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index 9d086a5..5e81e17 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -24,40 +24,25 @@ extern void flush_tlb_all_local(void *);
 
 #define smp_flush_tlb_all()	flush_tlb_all()
 
-/*
- * flush_tlb_mm()
- *
- * XXX This code is NOT valid for HP-UX compatibility processes,
- * (although it will probably work 99% of the time). HP-UX
- * processes are free to play with the space id's and save them
- * over long periods of time, etc. so we have to preserve the
- * space and just flush the entire tlb. We need to check the
- * personality in order to do that, but the personality is not
- * currently being set correctly.
- *
- * Of course, Linux processes could do the same thing, but
- * we don't support that (and the compilers, dynamic linker,
- * etc. do not do that).
- */
+int __flush_tlb_range(unsigned long sid,
+	unsigned long start, unsigned long end);
+
+#define flush_tlb_range(vma, start, end) \
+	__flush_tlb_range((vma)->vm_mm->context, start, end)
+
+#define flush_tlb_kernel_range(start, end) \
+	__flush_tlb_range(0, start, end)
 
 static inline void flush_tlb_mm(struct mm_struct *mm)
 {
-	BUG_ON(mm == &init_mm); /* Should never happen */
-
-#if 1 || defined(CONFIG_SMP)
-	flush_tlb_all();
-#else
-	/* FIXME: currently broken, causing space id and protection ids
-	 *  to go out of sync, resulting in faults on userspace accesses.
-	 */
-	if (mm) {
-		if (mm->context != 0)
-			free_sid(mm->context);
-		mm->context = alloc_sid();
-		if (mm == current->active_mm)
-			load_context(mm->context);
+	struct vm_area_struct *vma;
+
+	for (vma = mm->mmap; vma; vma = vma->vm_next) {
+		/* exit loop if flush_tlb_all() was called. */
+		if (unlikely(__flush_tlb_range(mm->context,
+				vma->vm_start, vma->vm_end)))
+			return;
 	}
-#endif
 }
 
 static inline void flush_tlb_page(struct vm_area_struct *vma,
@@ -76,11 +61,4 @@ static inline void flush_tlb_page(struct vm_area_struct *vma,
 	purge_tlb_end(flags);
 }
 
-void __flush_tlb_range(unsigned long sid,
-	unsigned long start, unsigned long end);
-
-#define flush_tlb_range(vma,start,end) __flush_tlb_range((vma)->vm_mm->context,start,end)
-
-#define flush_tlb_kernel_range(start, end) __flush_tlb_range(0,start,end)
-
 #endif
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index f6448c7..4eac923 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -342,12 +342,15 @@ EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
-int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
+static unsigned long parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
+
+#define FLUSH_TLB_THRESHOLD (2*1024*1024) /* 2MB initial TLB threshold */
+static unsigned long parisc_tlb_flush_threshold __read_mostly = FLUSH_TLB_THRESHOLD;
 
 void __init parisc_setup_cache_timing(void)
 {
 	unsigned long rangetime, alltime;
-	unsigned long size;
+	unsigned long size, start;
 
 	alltime = mfctl(16);
 	flush_data_cache();
@@ -364,14 +367,42 @@ void __init parisc_setup_cache_timing(void)
 	/* Racy, but if we see an intermediate value, it's ok too... */
 	parisc_cache_flush_threshold = size * alltime / rangetime;
 
-	parisc_cache_flush_threshold = (parisc_cache_flush_threshold + L1_CACHE_BYTES - 1) &~ (L1_CACHE_BYTES - 1); 
+	parisc_cache_flush_threshold = L1_CACHE_ALIGN(parisc_cache_flush_threshold);
 	if (!parisc_cache_flush_threshold)
 		parisc_cache_flush_threshold = FLUSH_THRESHOLD;
 
 	if (parisc_cache_flush_threshold > cache_info.dc_size)
 		parisc_cache_flush_threshold = cache_info.dc_size;
 
-	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
+	printk(KERN_INFO "Setting cache flush threshold to %lu kB\n",
+		parisc_cache_flush_threshold/1024);
+
+	/* calculate TLB flush threshold */
+
+	alltime = mfctl(16);
+	flush_tlb_all();
+	alltime = mfctl(16) - alltime;
+
+	size = PAGE_SIZE;
+	start = (unsigned long) _text;
+	rangetime = mfctl(16);
+	while (start < (unsigned long) _end) {
+		flush_tlb_kernel_range(start, start + PAGE_SIZE);
+		start += PAGE_SIZE;
+		size += PAGE_SIZE;
+	}
+	rangetime = mfctl(16) - rangetime;
+
+	printk(KERN_DEBUG "Whole TLB flush %lu cycles, flushing %lu bytes %lu cycles\n",
+		alltime, size, rangetime);
+
+	parisc_tlb_flush_threshold = size * alltime / rangetime;
+	parisc_tlb_flush_threshold = PAGE_ALIGN(parisc_tlb_flush_threshold);
+	if (!parisc_tlb_flush_threshold)
+		parisc_tlb_flush_threshold = FLUSH_TLB_THRESHOLD;
+
+	printk(KERN_INFO "Setting TLB flush threshold to %lu kB\n",
+		parisc_tlb_flush_threshold/1024);
 }
 
 extern void purge_kernel_dcache_page_asm(unsigned long);
@@ -418,32 +449,39 @@ void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 }
 EXPORT_SYMBOL(purge_tlb_entries);
 
-void __flush_tlb_range(unsigned long sid, unsigned long start,
+/* __flush_tlb_range()
+ *
+ * returns 1 if all TLBs were flushed.
+ */
+int __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {
-	unsigned long npages;
+	unsigned long size;
 
-	npages = ((end - (start & PAGE_MASK)) + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
-	if (npages >= 512)  /* 2MB of space: arbitrary, should be tuned */
+	size = (end - start);
+	if (size >= parisc_tlb_flush_threshold) {
 		flush_tlb_all();
+		return 1;
+	}
 	else {
 		unsigned long flags;
 
 		purge_tlb_start(flags);
 		mtsp(sid, 1);
 		if (split_tlb) {
- 	 		while (npages--) {
+			while (start < end) {
 				pdtlb(start);
 				pitlb(start);
 				start += PAGE_SIZE;
 			}
 		} else {
-			while (npages--) {
+			while (start < end) {
 				pdtlb(start);
 				start += PAGE_SIZE;
 			}
 		}
 		purge_tlb_end(flags);
+		return 0;
 	}
 }
 
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From - Thu Nov 08 21:37:31 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH][RFC] parisc: Optimize TLB flush functions based on timing
 results
Date: Fri, 29 May 2015 22:34:54 +0200
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On 29.05.2015 22:13, Helge Deller wrote:
> This patch optimizes the TLB flushing functions flush_tlb_mm() and
> __flush_tlb_range() in a way that it adds timing routines to calculate
> the optimal size up to which flushes of small TLB ranges perform faster
> than when performing a full TLB shootdown.
>
> Here are some timing results for a rp5470 and J5000 machine:
>
> Machine: rp5470, PA8700, 875 MHz
> I-cache         : 768 KB
> D-cache         : 1536 KB (WB, direct mapped)
> ITLB entries    : 240
> DTLB entries    : 240 - shared with ITLB
>
> Whole cache flush 692084 cycles, flushing 13214592 bytes 5904392 cycles
> Setting cache flush threshold to 1512 kB.
> Whole TLB flush 40990 cycles, flushing 4096000 bytes 448989 cycles
> Setting TLB flush threshold to 368 kB.
>
> Machine: J5000/785, PA8500, 440MHz
> I-cache         : 512 KB
> D-cache         : 1024 KB (WB, direct mapped)
> ITLB entries    : 160
> DTLB entries    : 160 - shared with ITLB
>
> Whole cache flush 268605 cycles, flushing 13214592 bytes 1861037 cycles
> Setting cache flush threshold to 1024 kB
> Whole TLB flush 14131 cycles, flushing 13221888 bytes 769329 cycles
> Setting TLB flush threshold to 240 kB


One more machine:
Machine: C8000, PA8800, 2 CPUs each 900 MHz
I-cache         : 32768 KB
D-cache         : 32768 KB (WB, direct mapped)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB

Whole cache flush 4298354 cycles, flushing 13214592 bytes 1440513 cycles
Setting cache flush threshold to 32768 kB
Whole TLB flush 15625 cycles, flushing 13221888 bytes 781230 cycles
Setting TLB flush threshold to 260 kB

  
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
> index 9d086a5..5e81e17 100644
> --- a/arch/parisc/include/asm/tlbflush.h
> +++ b/arch/parisc/include/asm/tlbflush.h
> @@ -24,40 +24,25 @@ extern void flush_tlb_all_local(void *);
>
>   #define smp_flush_tlb_all()	flush_tlb_all()
>
> -/*
> - * flush_tlb_mm()
> - *
> - * XXX This code is NOT valid for HP-UX compatibility processes,
> - * (although it will probably work 99% of the time). HP-UX
> - * processes are free to play with the space id's and save them
> - * over long periods of time, etc. so we have to preserve the
> - * space and just flush the entire tlb. We need to check the
> - * personality in order to do that, but the personality is not
> - * currently being set correctly.
> - *
> - * Of course, Linux processes could do the same thing, but
> - * we don't support that (and the compilers, dynamic linker,
> - * etc. do not do that).
> - */
> +int __flush_tlb_range(unsigned long sid,
> +	unsigned long start, unsigned long end);
> +
> +#define flush_tlb_range(vma, start, end) \
> +	__flush_tlb_range((vma)->vm_mm->context, start, end)
> +
> +#define flush_tlb_kernel_range(start, end) \
> +	__flush_tlb_range(0, start, end)
>
>   static inline void flush_tlb_mm(struct mm_struct *mm)
>   {
> -	BUG_ON(mm == &init_mm); /* Should never happen */
> -
> -#if 1 || defined(CONFIG_SMP)
> -	flush_tlb_all();
> -#else
> -	/* FIXME: currently broken, causing space id and protection ids
> -	 *  to go out of sync, resulting in faults on userspace accesses.
> -	 */
> -	if (mm) {
> -		if (mm->context != 0)
> -			free_sid(mm->context);
> -		mm->context = alloc_sid();
> -		if (mm == current->active_mm)
> -			load_context(mm->context);
> +	struct vm_area_struct *vma;
> +
> +	for (vma = mm->mmap; vma; vma = vma->vm_next) {
> +		/* exit loop if flush_tlb_all() was called. */
> +		if (unlikely(__flush_tlb_range(mm->context,
> +				vma->vm_start, vma->vm_end)))
> +			return;
>   	}
> -#endif
>   }
>
>   static inline void flush_tlb_page(struct vm_area_struct *vma,
> @@ -76,11 +61,4 @@ static inline void flush_tlb_page(struct vm_area_struct *vma,
>   	purge_tlb_end(flags);
>   }
>
> -void __flush_tlb_range(unsigned long sid,
> -	unsigned long start, unsigned long end);
> -
> -#define flush_tlb_range(vma,start,end) __flush_tlb_range((vma)->vm_mm->context,start,end)
> -
> -#define flush_tlb_kernel_range(start, end) __flush_tlb_range(0,start,end)
> -
>   #endif
> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
> index f6448c7..4eac923 100644
> --- a/arch/parisc/kernel/cache.c
> +++ b/arch/parisc/kernel/cache.c
> @@ -342,12 +342,15 @@ EXPORT_SYMBOL(flush_data_cache_local);
>   EXPORT_SYMBOL(flush_kernel_icache_range_asm);
>
>   #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
> -int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
> +static unsigned long parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
> +
> +#define FLUSH_TLB_THRESHOLD (2*1024*1024) /* 2MB initial TLB threshold */
> +static unsigned long parisc_tlb_flush_threshold __read_mostly = FLUSH_TLB_THRESHOLD;
>
>   void __init parisc_setup_cache_timing(void)
>   {
>   	unsigned long rangetime, alltime;
> -	unsigned long size;
> +	unsigned long size, start;
>
>   	alltime = mfctl(16);
>   	flush_data_cache();
> @@ -364,14 +367,42 @@ void __init parisc_setup_cache_timing(void)
>   	/* Racy, but if we see an intermediate value, it's ok too... */
>   	parisc_cache_flush_threshold = size * alltime / rangetime;
>
> -	parisc_cache_flush_threshold = (parisc_cache_flush_threshold + L1_CACHE_BYTES - 1) &~ (L1_CACHE_BYTES - 1);
> +	parisc_cache_flush_threshold = L1_CACHE_ALIGN(parisc_cache_flush_threshold);
>   	if (!parisc_cache_flush_threshold)
>   		parisc_cache_flush_threshold = FLUSH_THRESHOLD;
>
>   	if (parisc_cache_flush_threshold > cache_info.dc_size)
>   		parisc_cache_flush_threshold = cache_info.dc_size;
>
> -	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
> +	printk(KERN_INFO "Setting cache flush threshold to %lu kB\n",
> +		parisc_cache_flush_threshold/1024);
> +
> +	/* calculate TLB flush threshold */
> +
> +	alltime = mfctl(16);
> +	flush_tlb_all();
> +	alltime = mfctl(16) - alltime;
> +
> +	size = PAGE_SIZE;
> +	start = (unsigned long) _text;
> +	rangetime = mfctl(16);
> +	while (start < (unsigned long) _end) {
> +		flush_tlb_kernel_range(start, start + PAGE_SIZE);
> +		start += PAGE_SIZE;
> +		size += PAGE_SIZE;
> +	}
> +	rangetime = mfctl(16) - rangetime;
> +
> +	printk(KERN_DEBUG "Whole TLB flush %lu cycles, flushing %lu bytes %lu cycles\n",
> +		alltime, size, rangetime);
> +
> +	parisc_tlb_flush_threshold = size * alltime / rangetime;
> +	parisc_tlb_flush_threshold = PAGE_ALIGN(parisc_tlb_flush_threshold);
> +	if (!parisc_tlb_flush_threshold)
> +		parisc_tlb_flush_threshold = FLUSH_TLB_THRESHOLD;
> +
> +	printk(KERN_INFO "Setting TLB flush threshold to %lu kB\n",
> +		parisc_tlb_flush_threshold/1024);
>   }
>
>   extern void purge_kernel_dcache_page_asm(unsigned long);
> @@ -418,32 +449,39 @@ void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
>   }
>   EXPORT_SYMBOL(purge_tlb_entries);
>
> -void __flush_tlb_range(unsigned long sid, unsigned long start,
> +/* __flush_tlb_range()
> + *
> + * returns 1 if all TLBs were flushed.
> + */
> +int __flush_tlb_range(unsigned long sid, unsigned long start,
>   		       unsigned long end)
>   {
> -	unsigned long npages;
> +	unsigned long size;
>
> -	npages = ((end - (start & PAGE_MASK)) + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
> -	if (npages >= 512)  /* 2MB of space: arbitrary, should be tuned */
> +	size = (end - start);
> +	if (size >= parisc_tlb_flush_threshold) {
>   		flush_tlb_all();
> +		return 1;
> +	}
>   	else {
>   		unsigned long flags;
>
>   		purge_tlb_start(flags);
>   		mtsp(sid, 1);
>   		if (split_tlb) {
> - 	 		while (npages--) {
> +			while (start < end) {
>   				pdtlb(start);
>   				pitlb(start);
>   				start += PAGE_SIZE;
>   			}
>   		} else {
> -			while (npages--) {
> +			while (start < end) {
>   				pdtlb(start);
>   				start += PAGE_SIZE;
>   			}
>   		}
>   		purge_tlb_end(flags);
> +		return 0;
>   	}
>   }
>
>

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Subject: Re: [PATCH][RFC] parisc: Optimize TLB flush functions based on timing
 results
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So, the threshold for the whole cache flush is roughly the size of the 
cache.

On 2015-05-29 4:34 PM, Helge Deller wrote:
> On 29.05.2015 22:13, Helge Deller wrote:
>> This patch optimizes the TLB flushing functions flush_tlb_mm() and
>> __flush_tlb_range() in a way that it adds timing routines to calculate
>> the optimal size up to which flushes of small TLB ranges perform faster
>> than when performing a full TLB shootdown.
>>
>> Here are some timing results for a rp5470 and J5000 machine:
>>
>> Machine: rp5470, PA8700, 875 MHz
>> I-cache         : 768 KB
>> D-cache         : 1536 KB (WB, direct mapped)
>> ITLB entries    : 240
>> DTLB entries    : 240 - shared with ITLB
>>
>> Whole cache flush 692084 cycles, flushing 13214592 bytes 5904392 cycles
>> Setting cache flush threshold to 1512 kB.
>> Whole TLB flush 40990 cycles, flushing 4096000 bytes 448989 cycles
>> Setting TLB flush threshold to 368 kB.
>>
>> Machine: J5000/785, PA8500, 440MHz
>> I-cache         : 512 KB
>> D-cache         : 1024 KB (WB, direct mapped)
>> ITLB entries    : 160
>> DTLB entries    : 160 - shared with ITLB
>>
>> Whole cache flush 268605 cycles, flushing 13214592 bytes 1861037 cycles
>> Setting cache flush threshold to 1024 kB
>> Whole TLB flush 14131 cycles, flushing 13221888 bytes 769329 cycles
>> Setting TLB flush threshold to 240 kB
>
>
> One more machine:
> Machine: C8000, PA8800, 2 CPUs each 900 MHz
> I-cache         : 32768 KB
> D-cache         : 32768 KB (WB, direct mapped)
> ITLB entries    : 240
> DTLB entries    : 240 - shared with ITLB
>
> Whole cache flush 4298354 cycles, flushing 13214592 bytes 1440513 cycles
> Setting cache flush threshold to 32768 kB
> Whole TLB flush 15625 cycles, flushing 13221888 bytes 781230 cycles
> Setting TLB flush threshold to 260 kB
>
>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/arch/parisc/include/asm/tlbflush.h 
>> b/arch/parisc/include/asm/tlbflush.h
>> index 9d086a5..5e81e17 100644
>> --- a/arch/parisc/include/asm/tlbflush.h
>> +++ b/arch/parisc/include/asm/tlbflush.h
>> @@ -24,40 +24,25 @@ extern void flush_tlb_all_local(void *);
>>
>>   #define smp_flush_tlb_all()    flush_tlb_all()
>>
>> -/*
>> - * flush_tlb_mm()
>> - *
>> - * XXX This code is NOT valid for HP-UX compatibility processes,
>> - * (although it will probably work 99% of the time). HP-UX
>> - * processes are free to play with the space id's and save them
>> - * over long periods of time, etc. so we have to preserve the
>> - * space and just flush the entire tlb. We need to check the
>> - * personality in order to do that, but the personality is not
>> - * currently being set correctly.
>> - *
>> - * Of course, Linux processes could do the same thing, but
>> - * we don't support that (and the compilers, dynamic linker,
>> - * etc. do not do that).
>> - */
>> +int __flush_tlb_range(unsigned long sid,
>> +    unsigned long start, unsigned long end);
>> +
>> +#define flush_tlb_range(vma, start, end) \
>> +    __flush_tlb_range((vma)->vm_mm->context, start, end)
>> +
>> +#define flush_tlb_kernel_range(start, end) \
>> +    __flush_tlb_range(0, start, end)
>>
>>   static inline void flush_tlb_mm(struct mm_struct *mm)
>>   {
>> -    BUG_ON(mm == &init_mm); /* Should never happen */
>> -
>> -#if 1 || defined(CONFIG_SMP)
>> -    flush_tlb_all();
>> -#else
>> -    /* FIXME: currently broken, causing space id and protection ids
>> -     *  to go out of sync, resulting in faults on userspace accesses.
>> -     */
>> -    if (mm) {
>> -        if (mm->context != 0)
>> -            free_sid(mm->context);
>> -        mm->context = alloc_sid();
>> -        if (mm == current->active_mm)
>> -            load_context(mm->context);
>> +    struct vm_area_struct *vma;
>> +
>> +    for (vma = mm->mmap; vma; vma = vma->vm_next) {
>> +        /* exit loop if flush_tlb_all() was called. */
>> +        if (unlikely(__flush_tlb_range(mm->context,
>> +                vma->vm_start, vma->vm_end)))
>> +            return;
>>       }
>> -#endif
>>   }
>>
>>   static inline void flush_tlb_page(struct vm_area_struct *vma,
>> @@ -76,11 +61,4 @@ static inline void flush_tlb_page(struct 
>> vm_area_struct *vma,
>>       purge_tlb_end(flags);
>>   }
>>
>> -void __flush_tlb_range(unsigned long sid,
>> -    unsigned long start, unsigned long end);
>> -
>> -#define flush_tlb_range(vma,start,end) 
>> __flush_tlb_range((vma)->vm_mm->context,start,end)
>> -
>> -#define flush_tlb_kernel_range(start, end) 
>> __flush_tlb_range(0,start,end)
>> -
>>   #endif
>> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
>> index f6448c7..4eac923 100644
>> --- a/arch/parisc/kernel/cache.c
>> +++ b/arch/parisc/kernel/cache.c
>> @@ -342,12 +342,15 @@ EXPORT_SYMBOL(flush_data_cache_local);
>>   EXPORT_SYMBOL(flush_kernel_icache_range_asm);
>>
>>   #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
>> -int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
>> +static unsigned long parisc_cache_flush_threshold __read_mostly = 
>> FLUSH_THRESHOLD;
>> +
>> +#define FLUSH_TLB_THRESHOLD (2*1024*1024) /* 2MB initial TLB 
>> threshold */
>> +static unsigned long parisc_tlb_flush_threshold __read_mostly = 
>> FLUSH_TLB_THRESHOLD;
>>
>>   void __init parisc_setup_cache_timing(void)
>>   {
>>       unsigned long rangetime, alltime;
>> -    unsigned long size;
>> +    unsigned long size, start;
>>
>>       alltime = mfctl(16);
>>       flush_data_cache();
>> @@ -364,14 +367,42 @@ void __init parisc_setup_cache_timing(void)
>>       /* Racy, but if we see an intermediate value, it's ok too... */
>>       parisc_cache_flush_threshold = size * alltime / rangetime;
>>
>> -    parisc_cache_flush_threshold = (parisc_cache_flush_threshold + 
>> L1_CACHE_BYTES - 1) &~ (L1_CACHE_BYTES - 1);
>> +    parisc_cache_flush_threshold = 
>> L1_CACHE_ALIGN(parisc_cache_flush_threshold);
>>       if (!parisc_cache_flush_threshold)
>>           parisc_cache_flush_threshold = FLUSH_THRESHOLD;
>>
>>       if (parisc_cache_flush_threshold > cache_info.dc_size)
>>           parisc_cache_flush_threshold = cache_info.dc_size;
>>
>> -    printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs 
>> online)\n", parisc_cache_flush_threshold, num_online_cpus());
>> +    printk(KERN_INFO "Setting cache flush threshold to %lu kB\n",
>> +        parisc_cache_flush_threshold/1024);
>> +
>> +    /* calculate TLB flush threshold */
>> +
>> +    alltime = mfctl(16);
>> +    flush_tlb_all();
>> +    alltime = mfctl(16) - alltime;
>> +
>> +    size = PAGE_SIZE;
>> +    start = (unsigned long) _text;
>> +    rangetime = mfctl(16);
>> +    while (start < (unsigned long) _end) {
>> +        flush_tlb_kernel_range(start, start + PAGE_SIZE);
>> +        start += PAGE_SIZE;
>> +        size += PAGE_SIZE;
>> +    }
>> +    rangetime = mfctl(16) - rangetime;
>> +
>> +    printk(KERN_DEBUG "Whole TLB flush %lu cycles, flushing %lu 
>> bytes %lu cycles\n",
>> +        alltime, size, rangetime);
>> +
>> +    parisc_tlb_flush_threshold = size * alltime / rangetime;
>> +    parisc_tlb_flush_threshold = 
>> PAGE_ALIGN(parisc_tlb_flush_threshold);
>> +    if (!parisc_tlb_flush_threshold)
>> +        parisc_tlb_flush_threshold = FLUSH_TLB_THRESHOLD;
>> +
>> +    printk(KERN_INFO "Setting TLB flush threshold to %lu kB\n",
>> +        parisc_tlb_flush_threshold/1024);
>>   }
>>
>>   extern void purge_kernel_dcache_page_asm(unsigned long);
>> @@ -418,32 +449,39 @@ void purge_tlb_entries(struct mm_struct *mm, 
>> unsigned long addr)
>>   }
>>   EXPORT_SYMBOL(purge_tlb_entries);
>>
>> -void __flush_tlb_range(unsigned long sid, unsigned long start,
>> +/* __flush_tlb_range()
>> + *
>> + * returns 1 if all TLBs were flushed.
>> + */
>> +int __flush_tlb_range(unsigned long sid, unsigned long start,
>>                  unsigned long end)
>>   {
>> -    unsigned long npages;
>> +    unsigned long size;
>>
>> -    npages = ((end - (start & PAGE_MASK)) + (PAGE_SIZE - 1)) >> 
>> PAGE_SHIFT;
>> -    if (npages >= 512)  /* 2MB of space: arbitrary, should be tuned */
>> +    size = (end - start);
>> +    if (size >= parisc_tlb_flush_threshold) {
>>           flush_tlb_all();
>> +        return 1;
>> +    }
>>       else {
>>           unsigned long flags;
>>
>>           purge_tlb_start(flags);
>>           mtsp(sid, 1);
>>           if (split_tlb) {
>> -              while (npages--) {
>> +            while (start < end) {
>>                   pdtlb(start);
>>                   pitlb(start);
>>                   start += PAGE_SIZE;
>>               }
>>           } else {
>> -            while (npages--) {
>> +            while (start < end) {
>>                   pdtlb(start);
>>                   start += PAGE_SIZE;
>>               }
>>           }
>>           purge_tlb_end(flags);
>> +        return 0;
>>       }
>>   }
>>
>>
>
>
>


-- 
John David Anglin  dave.anglin@bell.net

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From - Thu Nov 08 21:37:31 2018
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Subject: Re: [PATCH][RFC] parisc: Optimize TLB flush functions based on timing
 results
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On 29.05.2015 22:40, John David Anglin wrote:
> So, the threshold for the whole cache flush is roughly the size of the cache.

It's exactly the size of the cache, because of this line in arch/parisc/kernel/cache.c:
         if (parisc_cache_flush_threshold > cache_info.dc_size)
                 parisc_cache_flush_threshold = cache_info.dc_size;

So, if the calculated threshold is bigger than the cache, the code chooses
the cache size.

Helge


>
> On 2015-05-29 4:34 PM, Helge Deller wrote:
>> On 29.05.2015 22:13, Helge Deller wrote:
>>> This patch optimizes the TLB flushing functions flush_tlb_mm() and
>>> __flush_tlb_range() in a way that it adds timing routines to calculate
>>> the optimal size up to which flushes of small TLB ranges perform faster
>>> than when performing a full TLB shootdown.
>>>
>>> Here are some timing results for a rp5470 and J5000 machine:
>>>
>>> Machine: rp5470, PA8700, 875 MHz
>>> I-cache         : 768 KB
>>> D-cache         : 1536 KB (WB, direct mapped)
>>> ITLB entries    : 240
>>> DTLB entries    : 240 - shared with ITLB
>>>
>>> Whole cache flush 692084 cycles, flushing 13214592 bytes 5904392 cycles
>>> Setting cache flush threshold to 1512 kB.
>>> Whole TLB flush 40990 cycles, flushing 4096000 bytes 448989 cycles
>>> Setting TLB flush threshold to 368 kB.
>>>
>>> Machine: J5000/785, PA8500, 440MHz
>>> I-cache         : 512 KB
>>> D-cache         : 1024 KB (WB, direct mapped)
>>> ITLB entries    : 160
>>> DTLB entries    : 160 - shared with ITLB
>>>
>>> Whole cache flush 268605 cycles, flushing 13214592 bytes 1861037 cycles
>>> Setting cache flush threshold to 1024 kB
>>> Whole TLB flush 14131 cycles, flushing 13221888 bytes 769329 cycles
>>> Setting TLB flush threshold to 240 kB
>>
>>
>> One more machine:
>> Machine: C8000, PA8800, 2 CPUs each 900 MHz
>> I-cache         : 32768 KB
>> D-cache         : 32768 KB (WB, direct mapped)
>> ITLB entries    : 240
>> DTLB entries    : 240 - shared with ITLB
>>
>> Whole cache flush 4298354 cycles, flushing 13214592 bytes 1440513 cycles
>> Setting cache flush threshold to 32768 kB
>> Whole TLB flush 15625 cycles, flushing 13221888 bytes 781230 cycles
>> Setting TLB flush threshold to 260 kB
>>
>>
>>> Signed-off-by: Helge Deller <deller@gmx.de>
>>>
>>> diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
>>> index 9d086a5..5e81e17 100644
>>> --- a/arch/parisc/include/asm/tlbflush.h
>>> +++ b/arch/parisc/include/asm/tlbflush.h
>>> @@ -24,40 +24,25 @@ extern void flush_tlb_all_local(void *);
>>>
>>>   #define smp_flush_tlb_all()    flush_tlb_all()
>>>
>>> -/*
>>> - * flush_tlb_mm()
>>> - *
>>> - * XXX This code is NOT valid for HP-UX compatibility processes,
>>> - * (although it will probably work 99% of the time). HP-UX
>>> - * processes are free to play with the space id's and save them
>>> - * over long periods of time, etc. so we have to preserve the
>>> - * space and just flush the entire tlb. We need to check the
>>> - * personality in order to do that, but the personality is not
>>> - * currently being set correctly.
>>> - *
>>> - * Of course, Linux processes could do the same thing, but
>>> - * we don't support that (and the compilers, dynamic linker,
>>> - * etc. do not do that).
>>> - */
>>> +int __flush_tlb_range(unsigned long sid,
>>> +    unsigned long start, unsigned long end);
>>> +
>>> +#define flush_tlb_range(vma, start, end) \
>>> +    __flush_tlb_range((vma)->vm_mm->context, start, end)
>>> +
>>> +#define flush_tlb_kernel_range(start, end) \
>>> +    __flush_tlb_range(0, start, end)
>>>
>>>   static inline void flush_tlb_mm(struct mm_struct *mm)
>>>   {
>>> -    BUG_ON(mm == &init_mm); /* Should never happen */
>>> -
>>> -#if 1 || defined(CONFIG_SMP)
>>> -    flush_tlb_all();
>>> -#else
>>> -    /* FIXME: currently broken, causing space id and protection ids
>>> -     *  to go out of sync, resulting in faults on userspace accesses.
>>> -     */
>>> -    if (mm) {
>>> -        if (mm->context != 0)
>>> -            free_sid(mm->context);
>>> -        mm->context = alloc_sid();
>>> -        if (mm == current->active_mm)
>>> -            load_context(mm->context);
>>> +    struct vm_area_struct *vma;
>>> +
>>> +    for (vma = mm->mmap; vma; vma = vma->vm_next) {
>>> +        /* exit loop if flush_tlb_all() was called. */
>>> +        if (unlikely(__flush_tlb_range(mm->context,
>>> +                vma->vm_start, vma->vm_end)))
>>> +            return;
>>>       }
>>> -#endif
>>>   }
>>>
>>>   static inline void flush_tlb_page(struct vm_area_struct *vma,
>>> @@ -76,11 +61,4 @@ static inline void flush_tlb_page(struct vm_area_struct *vma,
>>>       purge_tlb_end(flags);
>>>   }
>>>
>>> -void __flush_tlb_range(unsigned long sid,
>>> -    unsigned long start, unsigned long end);
>>> -
>>> -#define flush_tlb_range(vma,start,end) __flush_tlb_range((vma)->vm_mm->context,start,end)
>>> -
>>> -#define flush_tlb_kernel_range(start, end) __flush_tlb_range(0,start,end)
>>> -
>>>   #endif
>>> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
>>> index f6448c7..4eac923 100644
>>> --- a/arch/parisc/kernel/cache.c
>>> +++ b/arch/parisc/kernel/cache.c
>>> @@ -342,12 +342,15 @@ EXPORT_SYMBOL(flush_data_cache_local);
>>>   EXPORT_SYMBOL(flush_kernel_icache_range_asm);
>>>
>>>   #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
>>> -int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
>>> +static unsigned long parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
>>> +
>>> +#define FLUSH_TLB_THRESHOLD (2*1024*1024) /* 2MB initial TLB threshold */
>>> +static unsigned long parisc_tlb_flush_threshold __read_mostly = FLUSH_TLB_THRESHOLD;
>>>
>>>   void __init parisc_setup_cache_timing(void)
>>>   {
>>>       unsigned long rangetime, alltime;
>>> -    unsigned long size;
>>> +    unsigned long size, start;
>>>
>>>       alltime = mfctl(16);
>>>       flush_data_cache();
>>> @@ -364,14 +367,42 @@ void __init parisc_setup_cache_timing(void)
>>>       /* Racy, but if we see an intermediate value, it's ok too... */
>>>       parisc_cache_flush_threshold = size * alltime / rangetime;
>>>
>>> -    parisc_cache_flush_threshold = (parisc_cache_flush_threshold + L1_CACHE_BYTES - 1) &~ (L1_CACHE_BYTES - 1);
>>> +    parisc_cache_flush_threshold = L1_CACHE_ALIGN(parisc_cache_flush_threshold);
>>>       if (!parisc_cache_flush_threshold)
>>>           parisc_cache_flush_threshold = FLUSH_THRESHOLD;
>>>
>>>       if (parisc_cache_flush_threshold > cache_info.dc_size)
>>>           parisc_cache_flush_threshold = cache_info.dc_size;
>>>
>>> -    printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
>>> +    printk(KERN_INFO "Setting cache flush threshold to %lu kB\n",
>>> +        parisc_cache_flush_threshold/1024);
>>> +
>>> +    /* calculate TLB flush threshold */
>>> +
>>> +    alltime = mfctl(16);
>>> +    flush_tlb_all();
>>> +    alltime = mfctl(16) - alltime;
>>> +
>>> +    size = PAGE_SIZE;
>>> +    start = (unsigned long) _text;
>>> +    rangetime = mfctl(16);
>>> +    while (start < (unsigned long) _end) {
>>> +        flush_tlb_kernel_range(start, start + PAGE_SIZE);
>>> +        start += PAGE_SIZE;
>>> +        size += PAGE_SIZE;
>>> +    }
>>> +    rangetime = mfctl(16) - rangetime;
>>> +
>>> +    printk(KERN_DEBUG "Whole TLB flush %lu cycles, flushing %lu bytes %lu cycles\n",
>>> +        alltime, size, rangetime);
>>> +
>>> +    parisc_tlb_flush_threshold = size * alltime / rangetime;
>>> +    parisc_tlb_flush_threshold = PAGE_ALIGN(parisc_tlb_flush_threshold);
>>> +    if (!parisc_tlb_flush_threshold)
>>> +        parisc_tlb_flush_threshold = FLUSH_TLB_THRESHOLD;
>>> +
>>> +    printk(KERN_INFO "Setting TLB flush threshold to %lu kB\n",
>>> +        parisc_tlb_flush_threshold/1024);
>>>   }
>>>
>>>   extern void purge_kernel_dcache_page_asm(unsigned long);
>>> @@ -418,32 +449,39 @@ void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
>>>   }
>>>   EXPORT_SYMBOL(purge_tlb_entries);
>>>
>>> -void __flush_tlb_range(unsigned long sid, unsigned long start,
>>> +/* __flush_tlb_range()
>>> + *
>>> + * returns 1 if all TLBs were flushed.
>>> + */
>>> +int __flush_tlb_range(unsigned long sid, unsigned long start,
>>>                  unsigned long end)
>>>   {
>>> -    unsigned long npages;
>>> +    unsigned long size;
>>>
>>> -    npages = ((end - (start & PAGE_MASK)) + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
>>> -    if (npages >= 512)  /* 2MB of space: arbitrary, should be tuned */
>>> +    size = (end - start);
>>> +    if (size >= parisc_tlb_flush_threshold) {
>>>           flush_tlb_all();
>>> +        return 1;
>>> +    }
>>>       else {
>>>           unsigned long flags;
>>>
>>>           purge_tlb_start(flags);
>>>           mtsp(sid, 1);
>>>           if (split_tlb) {
>>> -              while (npages--) {
>>> +            while (start < end) {
>>>                   pdtlb(start);
>>>                   pitlb(start);
>>>                   start += PAGE_SIZE;
>>>               }
>>>           } else {
>>> -            while (npages--) {
>>> +            while (start < end) {
>>>                   pdtlb(start);
>>>                   start += PAGE_SIZE;
>>>               }
>>>           }
>>>           purge_tlb_end(flags);
>>> +        return 0;
>>>       }
>>>   }
>>>
>>>
>>
>>
>>
>
>

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From - Thu Nov 08 21:37:31 2018
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From: Jiang Liu <jiang.liu@linux.intel.com>
Newsgroups: gmane.linux.acpi.devel,gmane.linux.kernel,gmane.linux.kernel.pci,gmane.linux.ports.parisc
Subject: [Patch v3 23/36] parisc, irq: Use access helper irq_data_get_affinity_mask()
Date: Mon,  1 Jun 2015 16:05:32 +0800
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Use access helper irq_data_get_affinity_mask() to hide implementation
details of struct irq_desc.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
 arch/parisc/kernel/irq.c |   12 ++++++------
 drivers/parisc/iosapic.c |    2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index f3191db6e2e9..413ec3c3f9cc 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -131,7 +131,7 @@ static int cpu_set_affinity_irq(struct irq_data *d, const struct cpumask *dest,
 	if (cpu_dest < 0)
 		return -1;
 
-	cpumask_copy(d->affinity, dest);
+	cpumask_copy(irq_data_get_affinity_mask(d), dest);
 
 	return 0;
 }
@@ -339,7 +339,7 @@ unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 {
 #ifdef CONFIG_SMP
 	struct irq_data *d = irq_get_irq_data(irq);
-	cpumask_copy(d->affinity, cpumask_of(cpu));
+	cpumask_copy(irq_data_get_affinity_mask(d), cpumask_of(cpu));
 #endif
 
 	return per_cpu(cpu_data, cpu).txn_addr;
@@ -508,7 +508,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	unsigned long eirr_val;
 	int irq, cpu = smp_processor_id();
 #ifdef CONFIG_SMP
-	struct irq_desc *desc;
+	struct irq_data *irq_data;
 	cpumask_t dest;
 #endif
 
@@ -522,9 +522,9 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	irq = eirr_to_irq(eirr_val);
 
 #ifdef CONFIG_SMP
-	desc = irq_to_desc(irq);
-	cpumask_copy(&dest, desc->irq_data.affinity);
-	if (irqd_is_per_cpu(&desc->irq_data) &&
+	irq_data = irq_get_irq_data(irq);
+	cpumask_copy(&dest, irq_data_get_affinity_mask(irq_data));
+	if (irqd_is_per_cpu(irq_data) &&
 	    !cpumask_test_cpu(smp_processor_id(), &dest)) {
 		int cpu = cpumask_first(&dest);
 
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 9ee04b4b68bf..144c77dfe4b1 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -691,7 +691,7 @@ static int iosapic_set_affinity_irq(struct irq_data *d,
 	if (dest_cpu < 0)
 		return -1;
 
-	cpumask_copy(d->affinity, cpumask_of(dest_cpu));
+	cpumask_copy(irq_data_get_affinity_mask(d), cpumask_of(dest_cpu));
 	vi->txn_addr = txn_affinity_addr(d->irq, dest_cpu);
 
 	spin_lock_irqsave(&iosapic_lock, flags);
-- 
1.7.10.4

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From - Thu Nov 08 21:37:31 2018
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From: Andrew Morton <akpm@linux-foundation.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: Re: [RESEND PATCH 0/3] Allow user to request memory to be locked on
 page fault
Date: Mon, 1 Jun 2015 15:27:46 -0700
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To: Eric B Munson <emunson@akamai.com>
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On Fri, 29 May 2015 10:13:25 -0400 Eric B Munson <emunson@akamai.com> wrote:

> mlock() allows a user to control page out of program memory, but this
> comes at the cost of faulting in the entire mapping when it is
> allocated.  For large mappings where the entire area is not necessary
> this is not ideal.
> 
> This series introduces new flags for mmap() and mlockall() that allow a
> user to specify that the covered are should not be paged out, but only
> after the memory has been used the first time.

I almost applied these, but the naming issue (below) stopped me.

A few things...

- The 0/n changelog should reveal how MAP_LOCKONFAULT interacts with
  rlimit(RLIMIT_MEMLOCK).

  I see the implementation is "as if the entire mapping will be
  faulted in" (for mmap) and "as if it was MCL_FUTURE" (for mlockall)
  which seems fine.  Please include changelog text explaining and
  justifying these decisions.  This stuff will need to be in the
  manpage updates as well.

- I think I already asked "why not just use MCL_FUTURE" but I forget
  the answer ;) In general it is a good idea to update changelogs in
  response to reviewer questions, because other people will be
  wondering the same things.  Or maybe I forgot to ask.  Either way,
  please address this in the changelogs.

- I can perhaps see the point in mmap(MAP_LOCKONFAULT) (other
  mappings don't get lock-in-memory treatment), but what's the benefit
  in mlockall(MCL_ON_FAULT) over MCL_FUTURE?  (Add to changelog also,
  please).

- Is there a manpage update?

- Can we rename patch 1/3 from "add flag to ..." to "add mmap flag to
  ...", to distinguish from 2/3 "add mlockall flag ..."?

- The MAP_LOCKONFAULT versus MCL_ON_FAULT inconsistency is
  irritating!  Can we get these consistent please: switch to either
  MAP_LOCK_ON_FAULT or MCL_ONFAULT.

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From - Thu Nov 08 21:37:31 2018
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Subject: Re: [RESEND PATCH 0/3] Allow user to request memory to be locked on
 page fault
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Cc: Shuah Khan <shuahkh@osg.samsung.com>,
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To: Andrew Morton <akpm@linux-foundation.org>
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On Mon, 01 Jun 2015, Andrew Morton wrote:

> On Fri, 29 May 2015 10:13:25 -0400 Eric B Munson <emunson@akamai.com> wro=
te:
>=20
> > mlock() allows a user to control page out of program memory, but this
> > comes at the cost of faulting in the entire mapping when it is
> > allocated.  For large mappings where the entire area is not necessary
> > this is not ideal.
> >=20
> > This series introduces new flags for mmap() and mlockall() that allow a
> > user to specify that the covered are should not be paged out, but only
> > after the memory has been used the first time.
>=20
> I almost applied these, but the naming issue (below) stopped me.
>=20
> A few things...
>=20
> - The 0/n changelog should reveal how MAP_LOCKONFAULT interacts with
>   rlimit(RLIMIT_MEMLOCK).
>=20
>   I see the implementation is "as if the entire mapping will be
>   faulted in" (for mmap) and "as if it was MCL_FUTURE" (for mlockall)
>   which seems fine.  Please include changelog text explaining and
>   justifying these decisions.  This stuff will need to be in the
>   manpage updates as well.

Change logs are updated, and this will be included in the man page
update as well.

>=20
> - I think I already asked "why not just use MCL_FUTURE" but I forget
>   the answer ;) In general it is a good idea to update changelogs in
>   response to reviewer questions, because other people will be
>   wondering the same things.  Or maybe I forgot to ask.  Either way,
>   please address this in the changelogs.

I must have missed that question.  Here is the text from the updated
mlockall changelog:

MCL_ONFAULT is preferrable to MCL_FUTURE for the use cases enumerated
in the previous patch becuase MCL_FUTURE will behave as if each mapping
was made with MAP_LOCKED, causing the entire mapping to be faulted in
when new space is allocated or mapped.  MCL_ONFAULT allows the user to
delay the fault in cost of any given page until it is actually needed,
but then guarantees that that page will always be resident.

>=20
> - I can perhaps see the point in mmap(MAP_LOCKONFAULT) (other
>   mappings don't get lock-in-memory treatment), but what's the benefit
>   in mlockall(MCL_ON_FAULT) over MCL_FUTURE?  (Add to changelog also,
>   please).
>=20
> - Is there a manpage update?

I will send one out when I post V2

>=20
> - Can we rename patch 1/3 from "add flag to ..." to "add mmap flag to
>   ...", to distinguish from 2/3 "add mlockall flag ..."?

Done

>=20
> - The MAP_LOCKONFAULT versus MCL_ON_FAULT inconsistency is
>   irritating!  Can we get these consistent please: switch to either
>   MAP_LOCK_ON_FAULT or MCL_ONFAULT.

Yes, will do for V2.

>=20

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From - Thu Nov 08 21:37:32 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH V2 1/3] Add mmap flag to request pages are locked after page fault
Date: Tue,  2 Jun 2015 14:13:24 -0400
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Cc: Eric B Munson <emunson@akamai.com>,
	Michal Hocko <mhocko@suse.cz>,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	linux-alpha@vger.kernel.org,
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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/133642>

The cost of faulting in all memory to be locked can be very high when
working with large mappings.  If only portions of the mapping will be
used this can incur a high penalty for locking.

For the example of a large file, this is the usage pattern for a large
statical language model (probably applies to other statical or graphical
models as well).  For the security example, any application transacting
in data that cannot be swapped out (credit card data, medical records,
etc).

This patch introduces the ability to request that pages are not
pre-faulted, but are placed on the unevictable LRU when they are finally
faulted in.

To keep accounting checks out of the page fault path, users are billed
for the entire mapping lock as if MAP_LOCKED was used.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
---
 arch/alpha/include/uapi/asm/mman.h   | 1 +
 arch/mips/include/uapi/asm/mman.h    | 1 +
 arch/parisc/include/uapi/asm/mman.h  | 1 +
 arch/powerpc/include/uapi/asm/mman.h | 1 +
 arch/sparc/include/uapi/asm/mman.h   | 1 +
 arch/tile/include/uapi/asm/mman.h    | 1 +
 arch/xtensa/include/uapi/asm/mman.h  | 1 +
 include/linux/mm.h                   | 1 +
 include/linux/mman.h                 | 3 ++-
 include/uapi/asm-generic/mman.h      | 1 +
 mm/mmap.c                            | 4 ++--
 mm/swap.c                            | 3 ++-
 12 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..15e96e1 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -30,6 +30,7 @@
 #define MAP_NONBLOCK	0x40000		/* do not block on IO */
 #define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x200000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_SYNC		2		/* synchronous memory sync */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..47846a5 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -48,6 +48,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 /*
  * Flags for msync
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..1514cd7 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -24,6 +24,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_SYNC		1		/* synchronous memory sync */
 #define MS_ASYNC	2		/* sync memory asynchronously */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 6ea26df..fce74fe 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -27,5 +27,6 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 #endif /* _UAPI_ASM_POWERPC_MMAN_H */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 0b14df3..12425d8 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -22,6 +22,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 
 #endif /* _UAPI__SPARC_MMAN_H__ */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index 81b8fc3..ec04eaf 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -29,6 +29,7 @@
 #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
 #define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
 #define MAP_HUGETLB	0x4000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x8000		/* Lock pages after they are faulted in, do not prefault */
 
 
 /*
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..42d43cc 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -55,6 +55,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 #ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
 # define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be
 					 * uninitialized */
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0755b9f..3e31457 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -126,6 +126,7 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_PFNMAP	0x00000400	/* Page-ranges managed without "struct page", just pure PFN */
 #define VM_DENYWRITE	0x00000800	/* ETXTBSY on write attempts.. */
 
+#define VM_LOCKONFAULT	0x00001000	/* Lock the pages covered when they are faulted in */
 #define VM_LOCKED	0x00002000
 #define VM_IO           0x00004000	/* Memory mapped I/O or similar */
 
diff --git a/include/linux/mman.h b/include/linux/mman.h
index 16373c8..437264b 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -86,7 +86,8 @@ calc_vm_flag_bits(unsigned long flags)
 {
 	return _calc_vm_trans(flags, MAP_GROWSDOWN,  VM_GROWSDOWN ) |
 	       _calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
-	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    );
+	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    ) |
+	       _calc_vm_trans(flags, MAP_LOCKONFAULT,VM_LOCKONFAULT);
 }
 
 unsigned long vm_commit_limit(void);
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index e9fe6fd..fc4e586 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -12,6 +12,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 /* Bits [26:31] are reserved, see mman-common.h for MAP_HUGETLB usage */
 
diff --git a/mm/mmap.c b/mm/mmap.c
index bb50cac..ba1a6bf 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1233,7 +1233,7 @@ static inline int mlock_future_check(struct mm_struct *mm,
 	unsigned long locked, lock_limit;
 
 	/*  mlock MCL_FUTURE? */
-	if (flags & VM_LOCKED) {
+	if (flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 		locked = len >> PAGE_SHIFT;
 		locked += mm->locked_vm;
 		lock_limit = rlimit(RLIMIT_MEMLOCK);
@@ -1301,7 +1301,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 	vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
 			mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
 
-	if (flags & MAP_LOCKED)
+	if (flags & (MAP_LOCKED | MAP_LOCKONFAULT))
 		if (!can_do_mlock())
 			return -EPERM;
 
diff --git a/mm/swap.c b/mm/swap.c
index a7251a8..07c905e 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -711,7 +711,8 @@ void lru_cache_add_active_or_unevictable(struct page *page,
 {
 	VM_BUG_ON_PAGE(PageLRU(page), page);
 
-	if (likely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) != VM_LOCKED)) {
+	if (likely((vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) == 0) ||
+		   (vma->vm_flags & VM_SPECIAL)) {
 		SetPageActive(page);
 		lru_cache_add(page);
 		return;
-- 
1.9.1

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From - Thu Nov 08 21:37:32 2018
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X-Mozilla-Keys:                                                                                 
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH V2 2/3] Add mlockall flag for locking pages on fault
Date: Tue,  2 Jun 2015 14:13:25 -0400
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/133644>

Building on the previous patch, extend mlockall() to give a process a
way to specify that pages should be locked when they are faulted in, but
that pre-faulting is not needed.

MCL_ONFAULT is preferrable to MCL_FUTURE for the use cases enumerated
in the previous patch becuase MCL_FUTURE will behave as if each mapping
was made with MAP_LOCKED, causing the entire mapping to be faulted in
when new space is allocated or mapped.  MCL_ONFAULT allows the user to
delay the fault in cost of any given page until it is actually needed,
but then guarantees that that page will always be resident.

As with the mmap(MAP_LOCKONFAULT) case, the user is charged for the
mapping against the RLIMIT_MEMLOCK when the address space is allocated,
not when the page is faulted in.  This decision was made to keep the
accounting checks out of the page fault path.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
Cc: linux-mm@kvack.org
---
 arch/alpha/include/uapi/asm/mman.h   |  1 +
 arch/mips/include/uapi/asm/mman.h    |  1 +
 arch/parisc/include/uapi/asm/mman.h  |  1 +
 arch/powerpc/include/uapi/asm/mman.h |  1 +
 arch/sparc/include/uapi/asm/mman.h   |  1 +
 arch/tile/include/uapi/asm/mman.h    |  1 +
 arch/xtensa/include/uapi/asm/mman.h  |  1 +
 include/uapi/asm-generic/mman.h      |  1 +
 mm/mlock.c                           | 13 +++++++++----
 9 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 15e96e1..dfdaecf 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -38,6 +38,7 @@
 
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
+#define MCL_ONFAULT	32768		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 47846a5..f0705ff 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -62,6 +62,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 1514cd7..7c2eb85 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -32,6 +32,7 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index fce74fe..0109937 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -22,6 +22,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x80000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 12425d8..f2986f7 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -17,6 +17,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x80000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index ec04eaf..0f7ae45 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -37,6 +37,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 42d43cc..10fbbb7 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -75,6 +75,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index fc4e586..7fb729b 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -18,5 +18,6 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/mm/mlock.c b/mm/mlock.c
index 6fd2cf1..f15547f 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -579,7 +579,7 @@ static int do_mlock(unsigned long start, size_t len, int on)
 
 		/* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
+		newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
 		if (on)
 			newflags |= VM_LOCKED;
 
@@ -662,13 +662,17 @@ static int do_mlockall(int flags)
 		current->mm->def_flags |= VM_LOCKED;
 	else
 		current->mm->def_flags &= ~VM_LOCKED;
-	if (flags == MCL_FUTURE)
+	if (flags & MCL_ONFAULT)
+		current->mm->def_flags |= VM_LOCKONFAULT;
+	else
+		current->mm->def_flags &= ~VM_LOCKONFAULT;
+	if (flags == MCL_FUTURE || flags == MCL_ONFAULT)
 		goto out;
 
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
+		newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
 		if (flags & MCL_CURRENT)
 			newflags |= VM_LOCKED;
 
@@ -685,7 +689,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	unsigned long lock_limit;
 	int ret = -EINVAL;
 
-	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
+	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT)) ||
+	    ((flags & MCL_FUTURE) && (flags & MCL_ONFAULT)))
 		goto out;
 
 	ret = -EPERM;
-- 
1.9.1

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From - Thu Nov 08 21:37:32 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH V2 0/3] Allow user to request memory to be locked on page fault
Date: Tue,  2 Jun 2015 14:13:23 -0400
Lines: 161
Approved: news@gmane.org
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Cc: Eric B Munson <emunson@akamai.com>,
	Shuah Khan <shuahkh@osg.samsung.com>,
	Michal Hocko <mhocko@suse.cz>,
	Michael Kerrisk <mtk.manpages@gmail.com>,
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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/133646>

mlock() allows a user to control page out of program memory, but this
comes at the cost of faulting in the entire mapping when it is
allocated.  For large mappings where the entire area is not necessary
this is not ideal.

This series introduces new flags for mmap() and mlockall() that allow a
user to specify that the covered are should not be paged out, but only
after the memory has been used the first time.

There are two main use cases that this set covers.  The first is the
security focussed mlock case.  A buffer is needed that cannot be written
to swap.  The maximum size is known, but on average the memory used is
significantly less than this maximum.  With lock on fault, the buffer
is guaranteed to never be paged out without consuming the maximum size
every time such a buffer is created.

The second use case is focussed on performance.  Portions of a large
file are needed and we want to keep the used portions in memory once
accessed.  This is the case for large graphical models where the path
through the graph is not known until run time.  The entire graph is
unlikely to be used in a given invocation, but once a node has been
used it needs to stay resident for further processing.  Given these
constraints we have a number of options.  We can potentially waste a
large amount of memory by mlocking the entire region (this can also
cause a significant stall at startup as the entire file is read in).
We can mlock every page as we access them without tracking if the page
is already resident but this introduces large overhead for each access.
The third option is mapping the entire region with PROT_NONE and using
a signal handler for SIGSEGV to mprotect(PROT_READ) and mlock() the
needed page.  Doing this page at a time adds a significant performance
penalty.  Batching can be used to mitigate this overhead, but in order
to safely avoid trying to mprotect pages outside of the mapping, the
boundaries of each mapping to be used in this way must be tracked and
available to the signal handler.  This is precisely what the mm system
in the kernel should already be doing.

For mmap(MAP_LOCKONFAULT) the user is charged against RLIMIT_MEMLOCK
as if MAP_LOCKED was used, so when the VMA is created not when the pages
are faulted in.  For mlockall(MCL_ON_FAULT) the user is charged as if
MCL_FUTURE was used.  This decision was made to keep the accounting
checks out of the page fault path.

To illustrate the benefit of this patch I wrote a test program that
mmaps a 5 GB file filled with random data and then makes 15,000,000
accesses to random addresses in that mapping.  The test program was run
20 times for each setup.  Results are reported for two program portions,
setup and execution.  The setup phase is calling mmap and optionally
mlock on the entire region.  For most experiments this is trivial, but
it highlights the cost of faulting in the entire region.  Results are
averages across the 20 runs in milliseconds.

mmap with MAP_LOCKED:
Setup avg:      11821.193
Processing avg: 3404.286

mmap with mlock() before each access:
Setup avg:      0.054
Processing avg: 34263.201

mmap with PROT_NONE and signal handler and batch size of 1 page:
With the default value in max_map_count, this gets ENOMEM as I attempt
to change the permissions, after upping the sysctl significantly I get:
Setup avg:      0.050
Processing avg: 67690.625

mmap with PROT_NONE and signal handler and batch size of 8 pages:
Setup avg:      0.098
Processing avg: 37344.197

mmap with PROT_NONE and signal handler and batch size of 16 pages:
Setup avg:      0.0548
Processing avg: 29295.669

mmap with MAP_LOCKONFAULT:
Setup avg:      0.073
Processing avg: 18392.136

The signal handler in the batch cases faulted in memory in two steps to
avoid having to know the start and end of the faulting mapping.  The
first step covers the page that caused the fault as we know that it will
be possible to lock.  The second step speculatively tries to mlock and
mprotect the batch size - 1 pages that follow.  There may be a clever
way to avoid this without having the program track each mapping to be
covered by this handeler in a globally accessible structure, but I could
not find it.  It should be noted that with a large enough batch size
this two step fault handler can still cause the program to crash if it
reaches far beyond the end of the mapping.

These results show that if the developer knows that a majority of the
mapping will be used, it is better to try and fault it in at once,
otherwise MAP_LOCKONFAULT is significantly faster.

The performance cost of these patches are minimal on the two benchmarks
I have tested (stream and kernbench).  The following are the average
values across 20 runs of each benchmark after a warmup run whose
results were discarded.

Avg throughput in MB/s from stream using 1000000 element arrays
Test     4.1-rc2      4.1-rc2+lock-on-fault
Copy:    10,979.08    10,917.34
Scale:   11,094.45    11,023.01
Add:     12,487.29    12,388.65
Triad:   12,505.77    12,418.78

Kernbench optimal load
                 4.1-rc2  4.1-rc2+lock-on-fault
Elapsed Time     71.046   71.324
User Time        62.117   62.352
System Time      8.926    8.969
Context Switches 14531.9  14542.5
Sleeps           14935.9  14939

Eric B Munson (3):
  Add mmap flag to request pages are locked after page fault
  Add mlockall flag for locking pages on fault
  Add tests for lock on fault

 arch/alpha/include/uapi/asm/mman.h          |   2 +
 arch/mips/include/uapi/asm/mman.h           |   2 +
 arch/parisc/include/uapi/asm/mman.h         |   2 +
 arch/powerpc/include/uapi/asm/mman.h        |   2 +
 arch/sparc/include/uapi/asm/mman.h          |   2 +
 arch/tile/include/uapi/asm/mman.h           |   2 +
 arch/xtensa/include/uapi/asm/mman.h         |   2 +
 include/linux/mm.h                          |   1 +
 include/linux/mman.h                        |   3 +-
 include/uapi/asm-generic/mman.h             |   2 +
 mm/mlock.c                                  |  13 ++-
 mm/mmap.c                                   |   4 +-
 mm/swap.c                                   |   3 +-
 tools/testing/selftests/vm/Makefile         |   8 +-
 tools/testing/selftests/vm/lock-on-fault.c  | 145 ++++++++++++++++++++++++++++
 tools/testing/selftests/vm/on-fault-limit.c |  47 +++++++++
 tools/testing/selftests/vm/run_vmtests      |  23 +++++
 17 files changed, 254 insertions(+), 9 deletions(-)
 create mode 100644 tools/testing/selftests/vm/lock-on-fault.c
 create mode 100644 tools/testing/selftests/vm/on-fault-limit.c

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org

-- 
1.9.1

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From - Thu Nov 08 21:37:32 2018
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X-Mozilla-Keys:                                                                                 
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups: gmane.linux.kernel.stable,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.metag
Subject: [PATCH 4.0 109/148] parisc,metag: Fix crashes due to stack randomization on stack-grows-upwards architectures
Date: Wed,  3 Jun 2015 21:09:39 +0900
Lines: 83
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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4.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Helge Deller <deller@gmx.de>

commit d045c77c1a69703143a36169c224429c48b9eecd upstream.

On architectures where the stack grows upwards (CONFIG_STACK_GROWSUP=y,
currently parisc and metag only) stack randomization sometimes leads to crashes
when the stack ulimit is set to lower values than STACK_RND_MASK (which is 8 MB
by default if not defined in arch-specific headers).

The problem is, that when the stack vm_area_struct is set up in fs/exec.c, the
additional space needed for the stack randomization (as defined by the value of
STACK_RND_MASK) was not taken into account yet and as such, when the stack
randomization code added a random offset to the stack start, the stack
effectively got smaller than what the user defined via rlimit_max(RLIMIT_STACK)
which then sometimes leads to out-of-stack situations and crashes.

This patch fixes it by adding the maximum possible amount of memory (based on
STACK_RND_MASK) which theoretically could be added by the stack randomization
code to the initial stack size. That way, the user-defined stack size is always
guaranteed to be at minimum what is defined via rlimit_max(RLIMIT_STACK).

This bug is currently not visible on the metag architecture, because on metag
STACK_RND_MASK is defined to 0 which effectively disables stack randomization.

The changes to fs/exec.c are inside an "#ifdef CONFIG_STACK_GROWSUP"
section, so it does not affect other platformws beside those where the
stack grows upwards (parisc and metag).

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-metag@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/parisc/include/asm/elf.h   |    4 ++++
 arch/parisc/kernel/sys_parisc.c |    3 +++
 fs/exec.c                       |    3 +++
 3 files changed, 10 insertions(+)

--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -348,6 +348,10 @@ struct pt_regs;	/* forward declaration..
 
 #define ELF_HWCAP	0
 
+#define STACK_RND_MASK	(is_32bit_task() ? \
+				0x7ff >> (PAGE_SHIFT - 12) : \
+				0x3ffff >> (PAGE_SHIFT - 12))
+
 struct mm_struct;
 extern unsigned long arch_randomize_brk(struct mm_struct *);
 #define arch_randomize_brk arch_randomize_brk
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -77,6 +77,9 @@ static unsigned long mmap_upper_limit(vo
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;
 
+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }
 
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -659,6 +659,9 @@ int setup_arg_pages(struct linux_binprm
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;
 
+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
 		return -ENOMEM;



From - Thu Nov 08 21:37:32 2018
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From: Sasha Levin <sasha.levin-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.stable,gmane.linux.ports.parisc
Subject: [added to the 3.18 stable tree] parisc,metag: Fix crashes due to stack randomization on stack-grows-upwards architectures
Date: Thu,  4 Jun 2015 12:54:42 -0400
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From: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>

This patch has been added to the 3.18 stable tree. If you have any
objections, please let us know.

===============

[ Upstream commit d045c77c1a69703143a36169c224429c48b9eecd ]

On architectures where the stack grows upwards (CONFIG_STACK_GROWSUP=y,
currently parisc and metag only) stack randomization sometimes leads to crashes
when the stack ulimit is set to lower values than STACK_RND_MASK (which is 8 MB
by default if not defined in arch-specific headers).

The problem is, that when the stack vm_area_struct is set up in fs/exec.c, the
additional space needed for the stack randomization (as defined by the value of
STACK_RND_MASK) was not taken into account yet and as such, when the stack
randomization code added a random offset to the stack start, the stack
effectively got smaller than what the user defined via rlimit_max(RLIMIT_STACK)
which then sometimes leads to out-of-stack situations and crashes.

This patch fixes it by adding the maximum possible amount of memory (based on
STACK_RND_MASK) which theoretically could be added by the stack randomization
code to the initial stack size. That way, the user-defined stack size is always
guaranteed to be at minimum what is defined via rlimit_max(RLIMIT_STACK).

This bug is currently not visible on the metag architecture, because on metag
STACK_RND_MASK is defined to 0 which effectively disables stack randomization.

The changes to fs/exec.c are inside an "#ifdef CONFIG_STACK_GROWSUP"
section, so it does not affect other platformws beside those where the
stack grows upwards (parisc and metag).

Signed-off-by: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org # v3.16+
Signed-off-by: Sasha Levin <sasha.levin-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
---
 arch/parisc/include/asm/elf.h   | 4 ++++
 arch/parisc/kernel/sys_parisc.c | 3 +++
 fs/exec.c                       | 3 +++
 3 files changed, 10 insertions(+)

diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index 3391d06..78c9fd3 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -348,6 +348,10 @@ struct pt_regs;	/* forward declaration... */
 
 #define ELF_HWCAP	0
 
+#define STACK_RND_MASK	(is_32bit_task() ? \
+				0x7ff >> (PAGE_SHIFT - 12) : \
+				0x3ffff >> (PAGE_SHIFT - 12))
+
 struct mm_struct;
 extern unsigned long arch_randomize_brk(struct mm_struct *);
 #define arch_randomize_brk arch_randomize_brk
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index e1ffea2..5aba01a 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -77,6 +77,9 @@ static unsigned long mmap_upper_limit(void)
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;
 
+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }
 
diff --git a/fs/exec.c b/fs/exec.c
index 2e83209..b7a5f46 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -658,6 +658,9 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;
 
+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
 		return -ENOMEM;
-- 
2.1.0


From - Thu Nov 08 21:37:32 2018
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X-Mozilla-Keys:                                                                                 
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From: Luis Henriques <luis.henriques@canonical.com>
Newsgroups: gmane.linux.ubuntu.devel.kernel.general,gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.kernel.metag,gmane.linux.ports.parisc
Subject: [PATCH 3.16.y-ckt 039/110] parisc,
 metag: Fix crashes due to stack randomization on stack-grows-upwards
 architectures
Date: Fri,  5 Jun 2015 14:57:22 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.ubuntu.devel.kernel.general/57677>

3.16.7-ckt13 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Helge Deller <deller@gmx.de>

commit d045c77c1a69703143a36169c224429c48b9eecd upstream.

On architectures where the stack grows upwards (CONFIG_STACK_GROWSUP=y,
currently parisc and metag only) stack randomization sometimes leads to crashes
when the stack ulimit is set to lower values than STACK_RND_MASK (which is 8 MB
by default if not defined in arch-specific headers).

The problem is, that when the stack vm_area_struct is set up in fs/exec.c, the
additional space needed for the stack randomization (as defined by the value of
STACK_RND_MASK) was not taken into account yet and as such, when the stack
randomization code added a random offset to the stack start, the stack
effectively got smaller than what the user defined via rlimit_max(RLIMIT_STACK)
which then sometimes leads to out-of-stack situations and crashes.

This patch fixes it by adding the maximum possible amount of memory (based on
STACK_RND_MASK) which theoretically could be added by the stack randomization
code to the initial stack size. That way, the user-defined stack size is always
guaranteed to be at minimum what is defined via rlimit_max(RLIMIT_STACK).

This bug is currently not visible on the metag architecture, because on metag
STACK_RND_MASK is defined to 0 which effectively disables stack randomization.

The changes to fs/exec.c are inside an "#ifdef CONFIG_STACK_GROWSUP"
section, so it does not affect other platformws beside those where the
stack grows upwards (parisc and metag).

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-metag@vger.kernel.org
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 arch/parisc/include/asm/elf.h   | 4 ++++
 arch/parisc/kernel/sys_parisc.c | 3 +++
 fs/exec.c                       | 3 +++
 3 files changed, 10 insertions(+)

diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index 3391d061eccc..78c9fd32c554 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -348,6 +348,10 @@ struct pt_regs;	/* forward declaration... */
 
 #define ELF_HWCAP	0
 
+#define STACK_RND_MASK	(is_32bit_task() ? \
+				0x7ff >> (PAGE_SHIFT - 12) : \
+				0x3ffff >> (PAGE_SHIFT - 12))
+
 struct mm_struct;
 extern unsigned long arch_randomize_brk(struct mm_struct *);
 #define arch_randomize_brk arch_randomize_brk
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index e1ffea2f9a0b..5aba01ac457f 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -77,6 +77,9 @@ static unsigned long mmap_upper_limit(void)
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;
 
+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }
 
diff --git a/fs/exec.c b/fs/exec.c
index 68a0843250c9..993ed0aba99a 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -662,6 +662,9 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;
 
+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
 		return -ENOMEM;


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Hi,

If there is anything wrong, please report it in this thread:
https://marc.info/?t=143332955700003


The meaning of entries in the tables is:

    | ok |  # feature supported by the architecture
    |TODO|  # feature not yet supported by the architecture
    | .. |  # feature cannot be supported by the hardware

#
# Kernel feature support matrix of the 'parisc' architecture:
#
     sched/ numa-balancing       :  ..  |        ARCH_SUPPORTS_NUMA_BALANCING #  arch supports NUMA balancing
      time/ irq-time-acct        :  ..  |            HAVE_IRQ_TIME_ACCOUNTING #  arch supports precise IRQ time accounting
        vm/ numa-memblock        :  ..  |              HAVE_MEMBLOCK_NODE_MAP #  arch supports NUMA aware memblocks
      core/ generic-idle-thread  :  ok  |             GENERIC_SMP_IDLE_THREAD #  arch makes use of the generic SMP idle thread facility
      time/ modern-timekeeping   :  ok  |            !ARCH_USES_GETTIMEOFFSET #  arch does not use arch_gettimeoffset() anymore
      time/ virt-cpuacct         :  ok  |            HAVE_VIRT_CPU_ACCOUNTING #  arch supports precise virtual CPU time accounting
      core/ BPF-JIT              : TODO |                        HAVE_BPF_JIT #  arch supports BPF JIT optimizations
      core/ jump-labels          : TODO |                HAVE_ARCH_JUMP_LABEL #  arch supports live patched, high efficiency branches
      core/ tracehook            : TODO |                 HAVE_ARCH_TRACEHOOK #  arch supports tracehook (ptrace) register handling APIs
     debug/ gcov-profile-all     : TODO |           ARCH_HAS_GCOV_PROFILE_ALL #  arch supports whole-kernel GCOV code coverage profiling
     debug/ KASAN                : TODO |                     HAVE_ARCH_KASAN #  arch supports the KASAN runtime memory checker
     debug/ kgdb                 : TODO |                      HAVE_ARCH_KGDB #  arch supports the kGDB kernel debugger
     debug/ kprobes              : TODO |                        HAVE_KPROBES #  arch supports live patched kernel probe
     debug/ kprobes-on-ftrace    : TODO |              HAVE_KPROBES_ON_FTRACE #  arch supports combined kprobes and ftrace live patching
     debug/ kretprobes           : TODO |                     HAVE_KRETPROBES #  arch supports kernel function-return probes
     debug/ optprobes            : TODO |                      HAVE_OPTPROBES #  arch supports live patched optprobes
     debug/ stackprotector       : TODO |              HAVE_CC_STACKPROTECTOR #  arch supports compiler driven stack overflow protection
     debug/ uprobes              : TODO |               ARCH_SUPPORTS_UPROBES #  arch supports live patched user probes
     debug/ user-ret-profiler    : TODO |           HAVE_USER_RETURN_NOTIFIER #  arch supports user-space return from system call profiler
        io/ dma-api-debug        : TODO |                  HAVE_DMA_API_DEBUG #  arch supports DMA debug facilities
        io/ dma-contiguous       : TODO |                 HAVE_DMA_CONTIGUOUS #  arch supports the DMA CMA (continuous memory allocator)
        io/ dma_map_attrs        : TODO |                      HAVE_DMA_ATTRS #  arch provides dma_*map*_attrs() APIs
        io/ sg-chain             : TODO |                   ARCH_HAS_SG_CHAIN #  arch supports chained scatter-gather lists
       lib/ strncasecmp          : TODO |             __HAVE_ARCH_STRNCASECMP #  arch provides an optimized strncasecmp() function
   locking/ cmpxchg-local        : TODO |                  HAVE_CMPXCHG_LOCAL #  arch supports the this_cpu_cmpxchg() API
   locking/ lockdep              : TODO |                     LOCKDEP_SUPPORT #  arch supports the runtime locking correctness debug facility
   locking/ queued-rwlocks       : TODO |             ARCH_USE_QUEUED_RWLOCKS #  arch supports queued rwlocks
   locking/ queued-spinlocks     : TODO |           ARCH_USE_QUEUED_SPINLOCKS #  arch supports queued spinlocks
   locking/ rwsem-optimized      : TODO |               Optimized asm/rwsem.h #  arch provides optimized rwsem APIs
      perf/ kprobes-event        : TODO |      HAVE_REGS_AND_STACK_ACCESS_API #  arch supports kprobes with perf events
      perf/ perf-regs            : TODO |                      HAVE_PERF_REGS #  arch supports perf events register access
      perf/ perf-stackdump       : TODO |           HAVE_PERF_USER_STACK_DUMP #  arch supports perf events stack dumps
   seccomp/ seccomp-filter       : TODO |            HAVE_ARCH_SECCOMP_FILTER #  arch supports seccomp filters
      time/ arch-tick-broadcast  : TODO |             ARCH_HAS_TICK_BROADCAST #  arch provides tick_broadcast()
      time/ clockevents          : TODO |                 GENERIC_CLOCKEVENTS #  arch support generic clock events
      time/ context-tracking     : TODO |               HAVE_CONTEXT_TRACKING #  arch supports context tracking for NO_HZ_FULL
        vm/ ELF-ASLR             : TODO |              ARCH_HAS_ELF_RANDOMIZE #  arch randomizes the stack, heap and binary images of ELF binaries
        vm/ huge-vmap            : TODO |                 HAVE_ARCH_HUGE_VMAP #  arch supports the ioremap_pud_enabled() and ioremap_pmd_enabled() VM APIs
        vm/ ioremap_prot         : TODO |                   HAVE_IOREMAP_PROT #  arch has ioremap_prot()
        vm/ PG_uncached          : TODO |               ARCH_USES_PG_UNCACHED #  arch supports the PG_uncached page flag
        vm/ pmdp_splitting_flush : TODO |    __HAVE_ARCH_PMDP_SPLITTING_FLUSH #  arch supports the pmdp_splitting_flush() VM API
        vm/ pte_special          : TODO |             __HAVE_ARCH_PTE_SPECIAL #  arch supports the pte_special()/pte_mkspecial() VM APIs
        vm/ THP                  : TODO |      HAVE_ARCH_TRANSPARENT_HUGEPAGE #  arch supports transparent hugepages
--
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/134136>

The cost of faulting in all memory to be locked can be very high when
working with large mappings.  If only portions of the mapping will be
used this can incur a high penalty for locking.

For the example of a large file, this is the usage pattern for a large
statical language model (probably applies to other statical or graphical
models as well).  For the security example, any application transacting
in data that cannot be swapped out (credit card data, medical records,
etc).

This patch introduces the ability to request that pages are not
pre-faulted, but are placed on the unevictable LRU when they are finally
faulted in.

To keep accounting checks out of the page fault path, users are billed
for the entire mapping lock as if MAP_LOCKED was used.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
---
 arch/alpha/include/uapi/asm/mman.h   | 1 +
 arch/mips/include/uapi/asm/mman.h    | 1 +
 arch/parisc/include/uapi/asm/mman.h  | 1 +
 arch/powerpc/include/uapi/asm/mman.h | 1 +
 arch/sparc/include/uapi/asm/mman.h   | 1 +
 arch/tile/include/uapi/asm/mman.h    | 1 +
 arch/xtensa/include/uapi/asm/mman.h  | 1 +
 include/linux/mm.h                   | 1 +
 include/linux/mman.h                 | 3 ++-
 include/uapi/asm-generic/mman.h      | 1 +
 mm/mmap.c                            | 4 ++--
 mm/swap.c                            | 3 ++-
 12 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..15e96e1 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -30,6 +30,7 @@
 #define MAP_NONBLOCK	0x40000		/* do not block on IO */
 #define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x200000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_SYNC		2		/* synchronous memory sync */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..47846a5 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -48,6 +48,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 /*
  * Flags for msync
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..1514cd7 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -24,6 +24,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_SYNC		1		/* synchronous memory sync */
 #define MS_ASYNC	2		/* sync memory asynchronously */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 6ea26df..fce74fe 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -27,5 +27,6 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 #endif /* _UAPI_ASM_POWERPC_MMAN_H */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 0b14df3..12425d8 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -22,6 +22,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 
 #endif /* _UAPI__SPARC_MMAN_H__ */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index 81b8fc3..ec04eaf 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -29,6 +29,7 @@
 #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
 #define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
 #define MAP_HUGETLB	0x4000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x8000		/* Lock pages after they are faulted in, do not prefault */
 
 
 /*
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..42d43cc 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -55,6 +55,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 #ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
 # define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be
 					 * uninitialized */
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0755b9f..3e31457 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -126,6 +126,7 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_PFNMAP	0x00000400	/* Page-ranges managed without "struct page", just pure PFN */
 #define VM_DENYWRITE	0x00000800	/* ETXTBSY on write attempts.. */
 
+#define VM_LOCKONFAULT	0x00001000	/* Lock the pages covered when they are faulted in */
 #define VM_LOCKED	0x00002000
 #define VM_IO           0x00004000	/* Memory mapped I/O or similar */
 
diff --git a/include/linux/mman.h b/include/linux/mman.h
index 16373c8..437264b 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -86,7 +86,8 @@ calc_vm_flag_bits(unsigned long flags)
 {
 	return _calc_vm_trans(flags, MAP_GROWSDOWN,  VM_GROWSDOWN ) |
 	       _calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
-	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    );
+	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    ) |
+	       _calc_vm_trans(flags, MAP_LOCKONFAULT,VM_LOCKONFAULT);
 }
 
 unsigned long vm_commit_limit(void);
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index e9fe6fd..fc4e586 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -12,6 +12,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 /* Bits [26:31] are reserved, see mman-common.h for MAP_HUGETLB usage */
 
diff --git a/mm/mmap.c b/mm/mmap.c
index bb50cac..ba1a6bf 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1233,7 +1233,7 @@ static inline int mlock_future_check(struct mm_struct *mm,
 	unsigned long locked, lock_limit;
 
 	/*  mlock MCL_FUTURE? */
-	if (flags & VM_LOCKED) {
+	if (flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 		locked = len >> PAGE_SHIFT;
 		locked += mm->locked_vm;
 		lock_limit = rlimit(RLIMIT_MEMLOCK);
@@ -1301,7 +1301,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 	vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
 			mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
 
-	if (flags & MAP_LOCKED)
+	if (flags & (MAP_LOCKED | MAP_LOCKONFAULT))
 		if (!can_do_mlock())
 			return -EPERM;
 
diff --git a/mm/swap.c b/mm/swap.c
index a7251a8..07c905e 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -711,7 +711,8 @@ void lru_cache_add_active_or_unevictable(struct page *page,
 {
 	VM_BUG_ON_PAGE(PageLRU(page), page);
 
-	if (likely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) != VM_LOCKED)) {
+	if (likely((vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) == 0) ||
+		   (vma->vm_flags & VM_SPECIAL)) {
 		SetPageActive(page);
 		lru_cache_add(page);
 		return;
-- 
1.9.1

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From - Thu Nov 08 21:37:32 2018
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Path: news.gmane.org!not-for-mail
From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [RESEND PATCH V2 0/3] Allow user to request memory to be locked on page fault
Date: Wed, 10 Jun 2015 09:26:47 -0400
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Approved: news@gmane.org
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Cc: Eric B Munson <emunson@akamai.com>,
	Shuah Khan <shuahkh@osg.samsung.com>,
	Michal Hocko <mhocko@suse.cz>,
	Michael Kerrisk <mtk.manpages@gmail.com>,
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To: Andrew Morton <akpm@linux-foundation.org>
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mlock() allows a user to control page out of program memory, but this
comes at the cost of faulting in the entire mapping when it is
allocated.  For large mappings where the entire area is not necessary
this is not ideal.

This series introduces new flags for mmap() and mlockall() that allow a
user to specify that the covered are should not be paged out, but only
after the memory has been used the first time.

There are two main use cases that this set covers.  The first is the
security focussed mlock case.  A buffer is needed that cannot be written
to swap.  The maximum size is known, but on average the memory used is
significantly less than this maximum.  With lock on fault, the buffer
is guaranteed to never be paged out without consuming the maximum size
every time such a buffer is created.

The second use case is focussed on performance.  Portions of a large
file are needed and we want to keep the used portions in memory once
accessed.  This is the case for large graphical models where the path
through the graph is not known until run time.  The entire graph is
unlikely to be used in a given invocation, but once a node has been
used it needs to stay resident for further processing.  Given these
constraints we have a number of options.  We can potentially waste a
large amount of memory by mlocking the entire region (this can also
cause a significant stall at startup as the entire file is read in).
We can mlock every page as we access them without tracking if the page
is already resident but this introduces large overhead for each access.
The third option is mapping the entire region with PROT_NONE and using
a signal handler for SIGSEGV to mprotect(PROT_READ) and mlock() the
needed page.  Doing this page at a time adds a significant performance
penalty.  Batching can be used to mitigate this overhead, but in order
to safely avoid trying to mprotect pages outside of the mapping, the
boundaries of each mapping to be used in this way must be tracked and
available to the signal handler.  This is precisely what the mm system
in the kernel should already be doing.

For mmap(MAP_LOCKONFAULT) the user is charged against RLIMIT_MEMLOCK
as if MAP_LOCKED was used, so when the VMA is created not when the pages
are faulted in.  For mlockall(MCL_ON_FAULT) the user is charged as if
MCL_FUTURE was used.  This decision was made to keep the accounting
checks out of the page fault path.

To illustrate the benefit of this patch I wrote a test program that
mmaps a 5 GB file filled with random data and then makes 15,000,000
accesses to random addresses in that mapping.  The test program was run
20 times for each setup.  Results are reported for two program portions,
setup and execution.  The setup phase is calling mmap and optionally
mlock on the entire region.  For most experiments this is trivial, but
it highlights the cost of faulting in the entire region.  Results are
averages across the 20 runs in milliseconds.

mmap with MAP_LOCKED:
Setup avg:      11821.193
Processing avg: 3404.286

mmap with mlock() before each access:
Setup avg:      0.054
Processing avg: 34263.201

mmap with PROT_NONE and signal handler and batch size of 1 page:
With the default value in max_map_count, this gets ENOMEM as I attempt
to change the permissions, after upping the sysctl significantly I get:
Setup avg:      0.050
Processing avg: 67690.625

mmap with PROT_NONE and signal handler and batch size of 8 pages:
Setup avg:      0.098
Processing avg: 37344.197

mmap with PROT_NONE and signal handler and batch size of 16 pages:
Setup avg:      0.0548
Processing avg: 29295.669

mmap with MAP_LOCKONFAULT:
Setup avg:      0.073
Processing avg: 18392.136

The signal handler in the batch cases faulted in memory in two steps to
avoid having to know the start and end of the faulting mapping.  The
first step covers the page that caused the fault as we know that it will
be possible to lock.  The second step speculatively tries to mlock and
mprotect the batch size - 1 pages that follow.  There may be a clever
way to avoid this without having the program track each mapping to be
covered by this handeler in a globally accessible structure, but I could
not find it.  It should be noted that with a large enough batch size
this two step fault handler can still cause the program to crash if it
reaches far beyond the end of the mapping.

These results show that if the developer knows that a majority of the
mapping will be used, it is better to try and fault it in at once,
otherwise MAP_LOCKONFAULT is significantly faster.

The performance cost of these patches are minimal on the two benchmarks
I have tested (stream and kernbench).  The following are the average
values across 20 runs of each benchmark after a warmup run whose
results were discarded.

Avg throughput in MB/s from stream using 1000000 element arrays
Test     4.1-rc2      4.1-rc2+lock-on-fault
Copy:    10,979.08    10,917.34
Scale:   11,094.45    11,023.01
Add:     12,487.29    12,388.65
Triad:   12,505.77    12,418.78

Kernbench optimal load
                 4.1-rc2  4.1-rc2+lock-on-fault
Elapsed Time     71.046   71.324
User Time        62.117   62.352
System Time      8.926    8.969
Context Switches 14531.9  14542.5
Sleeps           14935.9  14939

Eric B Munson (3):
  Add mmap flag to request pages are locked after page fault
  Add mlockall flag for locking pages on fault
  Add tests for lock on fault

 arch/alpha/include/uapi/asm/mman.h          |   2 +
 arch/mips/include/uapi/asm/mman.h           |   2 +
 arch/parisc/include/uapi/asm/mman.h         |   2 +
 arch/powerpc/include/uapi/asm/mman.h        |   2 +
 arch/sparc/include/uapi/asm/mman.h          |   2 +
 arch/tile/include/uapi/asm/mman.h           |   2 +
 arch/xtensa/include/uapi/asm/mman.h         |   2 +
 include/linux/mm.h                          |   1 +
 include/linux/mman.h                        |   3 +-
 include/uapi/asm-generic/mman.h             |   2 +
 mm/mlock.c                                  |  13 ++-
 mm/mmap.c                                   |   4 +-
 mm/swap.c                                   |   3 +-
 tools/testing/selftests/vm/Makefile         |   8 +-
 tools/testing/selftests/vm/lock-on-fault.c  | 145 ++++++++++++++++++++++++++++
 tools/testing/selftests/vm/on-fault-limit.c |  47 +++++++++
 tools/testing/selftests/vm/run_vmtests      |  23 +++++
 17 files changed, 254 insertions(+), 9 deletions(-)
 create mode 100644 tools/testing/selftests/vm/lock-on-fault.c
 create mode 100644 tools/testing/selftests/vm/on-fault-limit.c

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org

-- 
1.9.1

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From - Thu Nov 08 21:37:32 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [RESEND PATCH V2 2/3] Add mlockall flag for locking pages on fault
Date: Wed, 10 Jun 2015 09:26:49 -0400
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/134138>

Building on the previous patch, extend mlockall() to give a process a
way to specify that pages should be locked when they are faulted in, but
that pre-faulting is not needed.

MCL_ONFAULT is preferrable to MCL_FUTURE for the use cases enumerated
in the previous patch becuase MCL_FUTURE will behave as if each mapping
was made with MAP_LOCKED, causing the entire mapping to be faulted in
when new space is allocated or mapped.  MCL_ONFAULT allows the user to
delay the fault in cost of any given page until it is actually needed,
but then guarantees that that page will always be resident.

As with the mmap(MAP_LOCKONFAULT) case, the user is charged for the
mapping against the RLIMIT_MEMLOCK when the address space is allocated,
not when the page is faulted in.  This decision was made to keep the
accounting checks out of the page fault path.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
Cc: linux-mm@kvack.org
---
 arch/alpha/include/uapi/asm/mman.h   |  1 +
 arch/mips/include/uapi/asm/mman.h    |  1 +
 arch/parisc/include/uapi/asm/mman.h  |  1 +
 arch/powerpc/include/uapi/asm/mman.h |  1 +
 arch/sparc/include/uapi/asm/mman.h   |  1 +
 arch/tile/include/uapi/asm/mman.h    |  1 +
 arch/xtensa/include/uapi/asm/mman.h  |  1 +
 include/uapi/asm-generic/mman.h      |  1 +
 mm/mlock.c                           | 13 +++++++++----
 9 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 15e96e1..dfdaecf 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -38,6 +38,7 @@
 
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
+#define MCL_ONFAULT	32768		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 47846a5..f0705ff 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -62,6 +62,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 1514cd7..7c2eb85 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -32,6 +32,7 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index fce74fe..761137a 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -22,6 +22,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 12425d8..dd027b8 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -17,6 +17,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index ec04eaf..0f7ae45 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -37,6 +37,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 42d43cc..10fbbb7 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -75,6 +75,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index fc4e586..7fb729b 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -18,5 +18,6 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/mm/mlock.c b/mm/mlock.c
index 6fd2cf1..f15547f 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -579,7 +579,7 @@ static int do_mlock(unsigned long start, size_t len, int on)
 
 		/* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
+		newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
 		if (on)
 			newflags |= VM_LOCKED;
 
@@ -662,13 +662,17 @@ static int do_mlockall(int flags)
 		current->mm->def_flags |= VM_LOCKED;
 	else
 		current->mm->def_flags &= ~VM_LOCKED;
-	if (flags == MCL_FUTURE)
+	if (flags & MCL_ONFAULT)
+		current->mm->def_flags |= VM_LOCKONFAULT;
+	else
+		current->mm->def_flags &= ~VM_LOCKONFAULT;
+	if (flags == MCL_FUTURE || flags == MCL_ONFAULT)
 		goto out;
 
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
+		newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
 		if (flags & MCL_CURRENT)
 			newflags |= VM_LOCKED;
 
@@ -685,7 +689,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	unsigned long lock_limit;
 	int ret = -EINVAL;
 
-	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
+	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT)) ||
+	    ((flags & MCL_FUTURE) && (flags & MCL_ONFAULT)))
 		goto out;
 
 	ret = -EPERM;
-- 
1.9.1

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From - Thu Nov 08 21:37:32 2018
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From: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Newsgroups: gmane.linux.kernel.api,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch
Subject: Re: [RESEND PATCH V2 0/3] Allow user to request memory to be locked
 on page fault
Date: Wed, 10 Jun 2015 14:59:29 -0700
Lines: 54
Approved: news@gmane.org
Message-ID: <20150610145929.b22be8647887ea7091b09ae1@linux-foundation.org>
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Cc: Shuah Khan <shuahkh-JPH+aEBZ4P+UEJcrhfAQsw@public.gmane.org>,
	Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>,
	Michael Kerrisk <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	linux-alpha-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
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To: Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org>
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On Wed, 10 Jun 2015 09:26:47 -0400 Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org> wrote:

> mlock() allows a user to control page out of program memory, but this
> comes at the cost of faulting in the entire mapping when it is

s/mapping/locked area/

> allocated.  For large mappings where the entire area is not necessary
> this is not ideal.
> 
> This series introduces new flags for mmap() and mlockall() that allow a
> user to specify that the covered are should not be paged out, but only
> after the memory has been used the first time.

The comparison with MCL_FUTURE is hiding over in the 2/3 changelog. 
It's important so let's copy it here.

: MCL_ONFAULT is preferrable to MCL_FUTURE for the use cases enumerated
: in the previous patch becuase MCL_FUTURE will behave as if each mapping
: was made with MAP_LOCKED, causing the entire mapping to be faulted in
: when new space is allocated or mapped.  MCL_ONFAULT allows the user to
: delay the fault in cost of any given page until it is actually needed,
: but then guarantees that that page will always be resident.

I *think* it all looks OK.  I'd like someone else to go over it also if
poss.


I guess the 2/3 changelog should have something like

: munlockall() will clear MCL_ONFAULT on all vma's in the process's VM.

It's pretty obvious, but the manpage delta should make this clear also.


Also the changelog(s) and manpage delta should explain that munlock()
clears MCL_ONFAULT.

And now I'm wondering what happens if userspace does
mmap(MAP_LOCKONFAULT) and later does munlock() on just part of that
region.  Does the vma get split?  Is this tested?  Should also be in
the changelogs and manpage.

Ditto mlockall(MCL_ONFAULT) followed by munlock().  I'm not sure that
even makes sense but the behaviour should be understood and tested.


What's missing here is a syscall to set VM_LOCKONFAULT on an arbitrary
range of memory - mlock() for lock-on-fault.  It's a shame that mlock()
didn't take a `mode' argument.  Perhaps we should add such a syscall -
that would make the mmap flag unneeded but I suppose it should be kept
for symmetry.



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Subject: Re: [RESEND PATCH V2 0/3] Allow user to request memory to be locked
 on page fault
Date: Thu, 11 Jun 2015 15:21:30 -0400
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 06/10/2015 05:59 PM, Andrew Morton wrote:
> On Wed, 10 Jun 2015 09:26:47 -0400 Eric B Munson
> <emunson@akamai.com> wrote:
>=20
>> mlock() allows a user to control page out of program memory, but
>> this comes at the cost of faulting in the entire mapping when it
>> is
>=20
> s/mapping/locked area/

Done.

>=20
>> allocated.  For large mappings where the entire area is not
>> necessary this is not ideal.
>>=20
>> This series introduces new flags for mmap() and mlockall() that
>> allow a user to specify that the covered are should not be paged
>> out, but only after the memory has been used the first time.
>=20
> The comparison with MCL_FUTURE is hiding over in the 2/3 changelog.
>  It's important so let's copy it here.
>=20
> : MCL_ONFAULT is preferrable to MCL_FUTURE for the use cases
> enumerated : in the previous patch becuase MCL_FUTURE will behave
> as if each mapping : was made with MAP_LOCKED, causing the entire
> mapping to be faulted in : when new space is allocated or mapped.
> MCL_ONFAULT allows the user to : delay the fault in cost of any
> given page until it is actually needed, : but then guarantees that
> that page will always be resident.

Done

>=20
> I *think* it all looks OK.  I'd like someone else to go over it
> also if poss.
>=20
>=20
> I guess the 2/3 changelog should have something like
>=20
> : munlockall() will clear MCL_ONFAULT on all vma's in the process's
> VM.

Done

>=20
> It's pretty obvious, but the manpage delta should make this clear
> also.

Done

>=20
>=20
> Also the changelog(s) and manpage delta should explain that
> munlock() clears MCL_ONFAULT.

Done

>=20
> And now I'm wondering what happens if userspace does=20
> mmap(MAP_LOCKONFAULT) and later does munlock() on just part of
> that region.  Does the vma get split?  Is this tested?  Should also
> be in the changelogs and manpage.
>=20
> Ditto mlockall(MCL_ONFAULT) followed by munlock().  I'm not sure
> that even makes sense but the behaviour should be understood and
> tested.

I have extended the kselftest for lock-on-fault to try both of these
scenarios and they work as expected.  The VMA is split and the VM
flags are set appropriately for the resulting VMAs.

>=20
>=20
> What's missing here is a syscall to set VM_LOCKONFAULT on an
> arbitrary range of memory - mlock() for lock-on-fault.  It's a
> shame that mlock() didn't take a `mode' argument.  Perhaps we
> should add such a syscall - that would make the mmap flag unneeded
> but I suppose it should be kept for symmetry.

Do you want such a system call as part of this set?  I would need some
time to make sure I had thought through all the possible corners one
could get into with such a call, so it would delay a V3 quite a bit.
Otherwise I can send a V3 out immediately.

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From - Thu Nov 08 21:37:33 2018
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Subject: Re: [RESEND PATCH V2 0/3] Allow user to request memory to be locked
 on page fault
Date: Thu, 11 Jun 2015 12:34:24 -0700
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Cc: Shuah Khan <shuahkh@osg.samsung.com>,
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	Michael Kerrisk <mtk.manpages@gmail.com>,
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To: Eric B Munson <emunson@akamai.com>
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On Thu, 11 Jun 2015 15:21:30 -0400 Eric B Munson <emunson@akamai.com> wrote:

> > Ditto mlockall(MCL_ONFAULT) followed by munlock().  I'm not sure
> > that even makes sense but the behaviour should be understood and
> > tested.
>
> I have extended the kselftest for lock-on-fault to try both of these
> scenarios and they work as expected.  The VMA is split and the VM
> flags are set appropriately for the resulting VMAs.

munlock() should do vma merging as well.  I *think* we implemented
that.  More tests for you to add ;)

How are you testing the vma merging and splitting, btw?  Parsing
the profcs files?

> > What's missing here is a syscall to set VM_LOCKONFAULT on an
> > arbitrary range of memory - mlock() for lock-on-fault.  It's a
> > shame that mlock() didn't take a `mode' argument.  Perhaps we
> > should add such a syscall - that would make the mmap flag unneeded
> > but I suppose it should be kept for symmetry.
> 
> Do you want such a system call as part of this set?  I would need some
> time to make sure I had thought through all the possible corners one
> could get into with such a call, so it would delay a V3 quite a bit.
> Otherwise I can send a V3 out immediately.

I think the way to look at this is to pretend that mm/mlock.c doesn't
exist and ask "how should we design these features".

And that would be:

- mmap() takes a `flags' argument: MAP_LOCKED|MAP_LOCKONFAULT.

- mlock() takes a `flags' argument.  Presently that's
  MLOCK_LOCKED|MLOCK_LOCKONFAULT.

- munlock() takes a `flags' arument.  MLOCK_LOCKED|MLOCK_LOCKONFAULT
  to specify which flags are being cleared.

- mlockall() and munlockall() ditto.


IOW, LOCKED and LOCKEDONFAULT are treated identically and independently.

Now, that's how we would have designed all this on day one.  And I
think we can do this now, by adding new mlock2() and munlock2()
syscalls.  And we may as well deprecate the old mlock() and munlock(),
not that this matters much.

*should* we do this?  I'm thinking "yes" - it's all pretty simple
boilerplate and wrappers and such, and it gets the interface correct,
and extensible.

What do others think?

From - Thu Nov 08 21:37:33 2018
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Subject: Re: [RESEND PATCH V2 0/3] Allow user to request memory to be locked
 on page fault
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To: Andrew Morton <akpm@linux-foundation.org>
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 06/11/2015 03:34 PM, Andrew Morton wrote:
> On Thu, 11 Jun 2015 15:21:30 -0400 Eric B Munson
> <emunson@akamai.com> wrote:
> 
>>> Ditto mlockall(MCL_ONFAULT) followed by munlock().  I'm not
>>> sure that even makes sense but the behaviour should be
>>> understood and tested.
>> 
>> I have extended the kselftest for lock-on-fault to try both of
>> these scenarios and they work as expected.  The VMA is split and
>> the VM flags are set appropriately for the resulting VMAs.
> 
> munlock() should do vma merging as well.  I *think* we implemented 
> that.  More tests for you to add ;)

I will add a test for this as well.  But the code is in place to merge
VMAs IIRC.

> 
> How are you testing the vma merging and splitting, btw?  Parsing 
> the profcs files?

To show the VMA split happened, I dropped a printk in mlock_fixup()
and the user space test simply checks that unlocked pages are not
marked as unevictable.  The test does not parse maps or smaps for
actual VMA layout.  Given that we want to check the merging of VMAs as
well I will add this.

> 
>>> What's missing here is a syscall to set VM_LOCKONFAULT on an 
>>> arbitrary range of memory - mlock() for lock-on-fault.  It's a 
>>> shame that mlock() didn't take a `mode' argument.  Perhaps we 
>>> should add such a syscall - that would make the mmap flag
>>> unneeded but I suppose it should be kept for symmetry.
>> 
>> Do you want such a system call as part of this set?  I would need
>> some time to make sure I had thought through all the possible
>> corners one could get into with such a call, so it would delay a
>> V3 quite a bit. Otherwise I can send a V3 out immediately.
> 
> I think the way to look at this is to pretend that mm/mlock.c
> doesn't exist and ask "how should we design these features".
> 
> And that would be:
> 
> - mmap() takes a `flags' argument: MAP_LOCKED|MAP_LOCKONFAULT.
> 
> - mlock() takes a `flags' argument.  Presently that's 
> MLOCK_LOCKED|MLOCK_LOCKONFAULT.
> 
> - munlock() takes a `flags' arument.
> MLOCK_LOCKED|MLOCK_LOCKONFAULT to specify which flags are being
> cleared.
> 
> - mlockall() and munlockall() ditto.
> 
> 
> IOW, LOCKED and LOCKEDONFAULT are treated identically and
> independently.
> 
> Now, that's how we would have designed all this on day one.  And I 
> think we can do this now, by adding new mlock2() and munlock2() 
> syscalls.  And we may as well deprecate the old mlock() and
> munlock(), not that this matters much.
> 
> *should* we do this?  I'm thinking "yes" - it's all pretty simple 
> boilerplate and wrappers and such, and it gets the interface
> correct, and extensible.
> 
> What do others think?
> 

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From - Thu Nov 08 21:37:33 2018
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To: Andrew Morton <akpm@linux-foundation.org>,
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On 06/11/2015 09:34 PM, Andrew Morton wrote:
> On Thu, 11 Jun 2015 15:21:30 -0400 Eric B Munson <emunson@akamai.com> wrote:
>
>>> Ditto mlockall(MCL_ONFAULT) followed by munlock().  I'm not sure
>>> that even makes sense but the behaviour should be understood and
>>> tested.
>>
>> I have extended the kselftest for lock-on-fault to try both of these
>> scenarios and they work as expected.  The VMA is split and the VM
>> flags are set appropriately for the resulting VMAs.
>
> munlock() should do vma merging as well.  I *think* we implemented
> that.  More tests for you to add ;)
>
> How are you testing the vma merging and splitting, btw?  Parsing
> the profcs files?
>
>>> What's missing here is a syscall to set VM_LOCKONFAULT on an
>>> arbitrary range of memory - mlock() for lock-on-fault.  It's a
>>> shame that mlock() didn't take a `mode' argument.  Perhaps we
>>> should add such a syscall - that would make the mmap flag unneeded
>>> but I suppose it should be kept for symmetry.
>>
>> Do you want such a system call as part of this set?  I would need some
>> time to make sure I had thought through all the possible corners one
>> could get into with such a call, so it would delay a V3 quite a bit.
>> Otherwise I can send a V3 out immediately.
>
> I think the way to look at this is to pretend that mm/mlock.c doesn't
> exist and ask "how should we design these features".
>
> And that would be:
>
> - mmap() takes a `flags' argument: MAP_LOCKED|MAP_LOCKONFAULT.

Note that the semantic of MAP_LOCKED can be subtly surprising:

"mlock(2) fails if the memory range cannot get populated to guarantee
that no future major faults will happen on the range. mmap(MAP_LOCKED) 
on the other hand silently succeeds even if the range was populated only
partially."

( from http://marc.info/?l=linux-mm&m=143152790412727&w=2 )

So MAP_LOCKED can silently behave like MAP_LOCKONFAULT. While 
MAP_LOCKONFAULT doesn't suffer from such problem, I wonder if that's 
sufficient reason not to extend mmap by new mlock() flags that can be 
instead applied to the VMA after mmapping, using the proposed mlock2() 
with flags. So I think instead we could deprecate MAP_LOCKED more 
prominently. I doubt the overhead of calling the extra syscall matters here?

> - mlock() takes a `flags' argument.  Presently that's
>    MLOCK_LOCKED|MLOCK_LOCKONFAULT.
>
> - munlock() takes a `flags' arument.  MLOCK_LOCKED|MLOCK_LOCKONFAULT
>    to specify which flags are being cleared.
>
> - mlockall() and munlockall() ditto.
>
>
> IOW, LOCKED and LOCKEDONFAULT are treated identically and independently.
>
> Now, that's how we would have designed all this on day one.  And I
> think we can do this now, by adding new mlock2() and munlock2()
> syscalls.  And we may as well deprecate the old mlock() and munlock(),
> not that this matters much.
>
> *should* we do this?  I'm thinking "yes" - it's all pretty simple
> boilerplate and wrappers and such, and it gets the interface correct,
> and extensible.

If the new LOCKONFAULT functionality is indeed desired (I haven't still 
decided myself) then I agree that would be the cleanest way.

> What do others think?
>
> --
> To unsubscribe, send a message with 'unsubscribe linux-mm' in
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Dear Sir/Ma,

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Subject: [PATCH] stifb: Implement hardware accelerated copyarea
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This patch adds hardware assisted scrolling. The code is based upon the
following investigation: https://parisc.wiki.kernel.org/index.php/NGLE#Blitter A
simple 'time ls -la /usr/bin' test shows 1.6x speed increase over soft copy and
2.3x increase over FBINFO_READS_FAST (prefer soft copy over screen redraw) on
Artist framebuffer.

Thanks!

Signed-off-by: Alex Ivanov <lausgans@gmail.com>

diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
index 86621fa..735355b 100644
--- a/drivers/video/fbdev/stifb.c
+++ b/drivers/video/fbdev/stifb.c
@@ -121,6 +121,7 @@ static int __initdata stifb_bpp_pref[MAX_STI_ROMS];
#define REG_3		0x0004a0
#define REG_4		0x000600
#define REG_6		0x000800
+#define REG_7		0x000804
#define REG_8		0x000820
#define REG_9		0x000a04
#define REG_10		0x018000
@@ -135,6 +136,8 @@ static int __initdata stifb_bpp_pref[MAX_STI_ROMS];
#define REG_21		0x200218
#define REG_22		0x0005a0
#define REG_23		0x0005c0
+#define REG_24		0x000808
+#define REG_25		0x000b00
#define REG_26		0x200118
#define REG_27		0x200308
#define REG_32		0x21003c
@@ -429,6 +432,9 @@ ARTIST_ENABLE_DISABLE_DISPLAY(struct stifb_info *fb, int enable)
#define SET_LENXY_START_RECFILL(fb, lenxy) \
	WRITE_WORD(lenxy, fb, REG_9)

+#define SETUP_COPYAREA(fb) \
+	WRITE_BYTE(0, fb, REG_16b1)
+
static void
HYPER_ENABLE_DISABLE_DISPLAY(struct stifb_info *fb, int enable)
{
@@ -1004,6 +1010,36 @@ stifb_blank(int blank_mode, struct fb_info *info)
	return 0;
}

+static void
+stifb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
+{
+	struct stifb_info *fb = container_of(info, struct stifb_info, info);
+
+	SETUP_COPYAREA(fb);
+
+	SETUP_HW(fb);
+	if (fb->info.var.bits_per_pixel == 32) {
+		WRITE_WORD(0xBBA0A000, fb, REG_10);
+
+		NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, 0xffffffff);
+	} else {
+		WRITE_WORD(fb->id == S9000_ID_HCRX ? 0x13a02000 : 0x13a01000, fb, REG_10);
+
+		NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, 0xff);
+	}
+
+	NGLE_QUICK_SET_IMAGE_BITMAP_OP(fb,
+		IBOvals(RopSrc, MaskAddrOffset(0),
+		BitmapExtent08, StaticReg(1),
+		DataDynamic, MaskOtc, BGx(0), FGx(0)));
+
+	WRITE_WORD(((area->sx << 16) | area->sy), fb, REG_24);
+	WRITE_WORD(((area->width << 16) | area->height), fb, REG_7);
+	WRITE_WORD(((area->dx << 16) | area->dy), fb, REG_25);
+
+	SETUP_FB(fb);
+}
+
static void __init
stifb_init_display(struct stifb_info *fb)
{
@@ -1069,7 +1105,7 @@ static struct fb_ops stifb_ops = {
	.fb_setcolreg	= stifb_setcolreg,
	.fb_blank	= stifb_blank,
	.fb_fillrect	= cfb_fillrect,
-	.fb_copyarea	= cfb_copyarea,
+	.fb_copyarea	= stifb_copyarea,
	.fb_imageblit	= cfb_imageblit,
};

@@ -1258,7 +1294,7 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
	info->fbops = &stifb_ops;
	info->screen_base = ioremap_nocache(REGION_BASE(fb,1), fix->smem_len);
	info->screen_size = fix->smem_len;
-	info->flags = FBINFO_DEFAULT;
+	info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA;
	info->pseudo_palette = &fb->pseudo_palette;

	/* This has to be done !!! */
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From - Thu Nov 08 21:37:33 2018
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Subject: Re: [RESEND PATCH V2 0/3] Allow user to request memory to be locked
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On Thu, 11 Jun 2015, Andrew Morton wrote:

> On Thu, 11 Jun 2015 15:21:30 -0400 Eric B Munson <emunson@akamai.com> wro=
te:
>=20
> > > Ditto mlockall(MCL_ONFAULT) followed by munlock().  I'm not sure
> > > that even makes sense but the behaviour should be understood and
> > > tested.
> >
> > I have extended the kselftest for lock-on-fault to try both of these
> > scenarios and they work as expected.  The VMA is split and the VM
> > flags are set appropriately for the resulting VMAs.
>=20
> munlock() should do vma merging as well.  I *think* we implemented
> that.  More tests for you to add ;)
>=20
> How are you testing the vma merging and splitting, btw?  Parsing
> the profcs files?

The lock-on-fault test now covers VMA splitting and merging by parsing
/proc/self/maps.  VMA splitting and merging works as it should with both
MAP_LOCKONFAULT and MCL_ONFAULT.

>=20
> > > What's missing here is a syscall to set VM_LOCKONFAULT on an
> > > arbitrary range of memory - mlock() for lock-on-fault.  It's a
> > > shame that mlock() didn't take a `mode' argument.  Perhaps we
> > > should add such a syscall - that would make the mmap flag unneeded
> > > but I suppose it should be kept for symmetry.
> >=20
> > Do you want such a system call as part of this set?  I would need some
> > time to make sure I had thought through all the possible corners one
> > could get into with such a call, so it would delay a V3 quite a bit.
> > Otherwise I can send a V3 out immediately.
>=20
> I think the way to look at this is to pretend that mm/mlock.c doesn't
> exist and ask "how should we design these features".
>=20
> And that would be:
>=20
> - mmap() takes a `flags' argument: MAP_LOCKED|MAP_LOCKONFAULT.
>=20
> - mlock() takes a `flags' argument.  Presently that's
>   MLOCK_LOCKED|MLOCK_LOCKONFAULT.
>=20
> - munlock() takes a `flags' arument.  MLOCK_LOCKED|MLOCK_LOCKONFAULT
>   to specify which flags are being cleared.
>=20
> - mlockall() and munlockall() ditto.
>=20
>=20
> IOW, LOCKED and LOCKEDONFAULT are treated identically and independently.
>=20
> Now, that's how we would have designed all this on day one.  And I
> think we can do this now, by adding new mlock2() and munlock2()
> syscalls.  And we may as well deprecate the old mlock() and munlock(),
> not that this matters much.
>=20
> *should* we do this?  I'm thinking "yes" - it's all pretty simple
> boilerplate and wrappers and such, and it gets the interface correct,
> and extensible.
>=20
> What do others think?

I am working on V3 which will introduce the new system calls.

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From - Thu Nov 08 21:37:33 2018
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Subject: Re: [RESEND PATCH V2 0/3] Allow user to request memory to be locked
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On Fri, 12 Jun 2015, Vlastimil Babka wrote:

> On 06/11/2015 09:34 PM, Andrew Morton wrote:
> >On Thu, 11 Jun 2015 15:21:30 -0400 Eric B Munson <emunson@akamai.com> wr=
ote:
> >
> >>>Ditto mlockall(MCL_ONFAULT) followed by munlock().  I'm not sure
> >>>that even makes sense but the behaviour should be understood and
> >>>tested.
> >>
> >>I have extended the kselftest for lock-on-fault to try both of these
> >>scenarios and they work as expected.  The VMA is split and the VM
> >>flags are set appropriately for the resulting VMAs.
> >
> >munlock() should do vma merging as well.  I *think* we implemented
> >that.  More tests for you to add ;)
> >
> >How are you testing the vma merging and splitting, btw?  Parsing
> >the profcs files?
> >
> >>>What's missing here is a syscall to set VM_LOCKONFAULT on an
> >>>arbitrary range of memory - mlock() for lock-on-fault.  It's a
> >>>shame that mlock() didn't take a `mode' argument.  Perhaps we
> >>>should add such a syscall - that would make the mmap flag unneeded
> >>>but I suppose it should be kept for symmetry.
> >>
> >>Do you want such a system call as part of this set?  I would need some
> >>time to make sure I had thought through all the possible corners one
> >>could get into with such a call, so it would delay a V3 quite a bit.
> >>Otherwise I can send a V3 out immediately.
> >
> >I think the way to look at this is to pretend that mm/mlock.c doesn't
> >exist and ask "how should we design these features".
> >
> >And that would be:
> >
> >- mmap() takes a `flags' argument: MAP_LOCKED|MAP_LOCKONFAULT.
>=20
> Note that the semantic of MAP_LOCKED can be subtly surprising:
>=20
> "mlock(2) fails if the memory range cannot get populated to guarantee
> that no future major faults will happen on the range.
> mmap(MAP_LOCKED) on the other hand silently succeeds even if the
> range was populated only
> partially."
>=20
> ( from http://marc.info/?l=3Dlinux-mm&m=3D143152790412727&w=3D2 )
>=20
> So MAP_LOCKED can silently behave like MAP_LOCKONFAULT. While
> MAP_LOCKONFAULT doesn't suffer from such problem, I wonder if that's
> sufficient reason not to extend mmap by new mlock() flags that can
> be instead applied to the VMA after mmapping, using the proposed
> mlock2() with flags. So I think instead we could deprecate
> MAP_LOCKED more prominently. I doubt the overhead of calling the
> extra syscall matters here?

We could talk about retiring the MAP_LOCKED flag but I suspect that
would get significantly more pushback than adding a new mmap flag.

Likely that the overhead does not matter in most cases, but presumably
there are cases where it does (as we have a MAP_LOCKED flag today).
Even with the proposed new system calls I think we should have the
MAP_LOCKONFAULT for parity with MAP_LOCKED.

>=20
> >- mlock() takes a `flags' argument.  Presently that's
> >   MLOCK_LOCKED|MLOCK_LOCKONFAULT.
> >
> >- munlock() takes a `flags' arument.  MLOCK_LOCKED|MLOCK_LOCKONFAULT
> >   to specify which flags are being cleared.
> >
> >- mlockall() and munlockall() ditto.
> >
> >
> >IOW, LOCKED and LOCKEDONFAULT are treated identically and independently.
> >
> >Now, that's how we would have designed all this on day one.  And I
> >think we can do this now, by adding new mlock2() and munlock2()
> >syscalls.  And we may as well deprecate the old mlock() and munlock(),
> >not that this matters much.
> >
> >*should* we do this?  I'm thinking "yes" - it's all pretty simple
> >boilerplate and wrappers and such, and it gets the interface correct,
> >and extensible.
>=20
> If the new LOCKONFAULT functionality is indeed desired (I haven't
> still decided myself) then I agree that would be the cleanest way.

Do you disagree with the use cases I have listed or do you think there
is a better way of addressing those cases?

>=20
> >What do others think?

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] stifb: Implement hardware accelerated copyarea
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On 15.06.2015 07:50, lausgans@gmail.com wrote:
> This patch adds hardware assisted scrolling. The code is based upon the
> following investigation: https://parisc.wiki.kernel.org/index.php/NGLE#Blitter A
> simple 'time ls -la /usr/bin' test shows 1.6x speed increase over soft copy and
> 2.3x increase over FBINFO_READS_FAST (prefer soft copy over screen redraw) on
> Artist framebuffer.

I haven't tested it yet, but that's very cool!
Thanks!

I wonder if adding a BlockTLB (with PA7100LC CPUs) further increases
speed on Artist graphic cards (e.g. in X11)...?

Helge

> Signed-off-by: Alex Ivanov <lausgans@gmail.com>
>
> diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
> index 86621fa..735355b 100644
> --- a/drivers/video/fbdev/stifb.c
> +++ b/drivers/video/fbdev/stifb.c
> @@ -121,6 +121,7 @@ static int __initdata stifb_bpp_pref[MAX_STI_ROMS];
> #define REG_3		0x0004a0
> #define REG_4		0x000600
> #define REG_6		0x000800
> +#define REG_7		0x000804
> #define REG_8		0x000820
> #define REG_9		0x000a04
> #define REG_10		0x018000
> @@ -135,6 +136,8 @@ static int __initdata stifb_bpp_pref[MAX_STI_ROMS];
> #define REG_21		0x200218
> #define REG_22		0x0005a0
> #define REG_23		0x0005c0
> +#define REG_24		0x000808
> +#define REG_25		0x000b00
> #define REG_26		0x200118
> #define REG_27		0x200308
> #define REG_32		0x21003c
> @@ -429,6 +432,9 @@ ARTIST_ENABLE_DISABLE_DISPLAY(struct stifb_info *fb, int enable)
> #define SET_LENXY_START_RECFILL(fb, lenxy) \
> 	WRITE_WORD(lenxy, fb, REG_9)
>
> +#define SETUP_COPYAREA(fb) \
> +	WRITE_BYTE(0, fb, REG_16b1)
> +
> static void
> HYPER_ENABLE_DISABLE_DISPLAY(struct stifb_info *fb, int enable)
> {
> @@ -1004,6 +1010,36 @@ stifb_blank(int blank_mode, struct fb_info *info)
> 	return 0;
> }
>
> +static void
> +stifb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
> +{
> +	struct stifb_info *fb = container_of(info, struct stifb_info, info);
> +
> +	SETUP_COPYAREA(fb);
> +
> +	SETUP_HW(fb);
> +	if (fb->info.var.bits_per_pixel == 32) {
> +		WRITE_WORD(0xBBA0A000, fb, REG_10);
> +
> +		NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, 0xffffffff);
> +	} else {
> +		WRITE_WORD(fb->id == S9000_ID_HCRX ? 0x13a02000 : 0x13a01000, fb, REG_10);
> +
> +		NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, 0xff);
> +	}
> +
> +	NGLE_QUICK_SET_IMAGE_BITMAP_OP(fb,
> +		IBOvals(RopSrc, MaskAddrOffset(0),
> +		BitmapExtent08, StaticReg(1),
> +		DataDynamic, MaskOtc, BGx(0), FGx(0)));
> +
> +	WRITE_WORD(((area->sx << 16) | area->sy), fb, REG_24);
> +	WRITE_WORD(((area->width << 16) | area->height), fb, REG_7);
> +	WRITE_WORD(((area->dx << 16) | area->dy), fb, REG_25);
> +
> +	SETUP_FB(fb);
> +}
> +
> static void __init
> stifb_init_display(struct stifb_info *fb)
> {
> @@ -1069,7 +1105,7 @@ static struct fb_ops stifb_ops = {
> 	.fb_setcolreg	= stifb_setcolreg,
> 	.fb_blank	= stifb_blank,
> 	.fb_fillrect	= cfb_fillrect,
> -	.fb_copyarea	= cfb_copyarea,
> +	.fb_copyarea	= stifb_copyarea,
> 	.fb_imageblit	= cfb_imageblit,
> };
>
> @@ -1258,7 +1294,7 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
> 	info->fbops = &stifb_ops;
> 	info->screen_base = ioremap_nocache(REGION_BASE(fb,1), fix->smem_len);
> 	info->screen_size = fix->smem_len;
> -	info->flags = FBINFO_DEFAULT;
> +	info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA;
> 	info->pseudo_palette = &fb->pseudo_palette;
>
> 	/* This has to be done !!! */
> --
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From - Thu Nov 08 21:37:33 2018
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From: Kamal Mostafa <kamal@canonical.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.ubuntu.devel.kernel.general
Subject: [3.19.y-ckt stable] Patch "parisc,metag: Fix crashes due to stack randomization on stack-grows-upwards architectures" has been added to staging queue
Date: Mon, 15 Jun 2015 17:22:26 -0700
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Cc: linux-parisc@vger.kernel.org, James Hogan <james.hogan@imgtec.com>,
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This is a note to let you know that I have just added a patch titled

    parisc,metag: Fix crashes due to stack randomization on stack-grows-upwards architectures

to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue

This patch is scheduled to be released in version 3.19.8-ckt2.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.19.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 264f3887a1df6bf17f366be430441c9b8728dd89 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Mon, 11 May 2015 22:01:27 +0200
Subject: parisc,metag: Fix crashes due to stack randomization on
 stack-grows-upwards architectures

commit d045c77c1a69703143a36169c224429c48b9eecd upstream.

On architectures where the stack grows upwards (CONFIG_STACK_GROWSUP=y,
currently parisc and metag only) stack randomization sometimes leads to crashes
when the stack ulimit is set to lower values than STACK_RND_MASK (which is 8 MB
by default if not defined in arch-specific headers).

The problem is, that when the stack vm_area_struct is set up in fs/exec.c, the
additional space needed for the stack randomization (as defined by the value of
STACK_RND_MASK) was not taken into account yet and as such, when the stack
randomization code added a random offset to the stack start, the stack
effectively got smaller than what the user defined via rlimit_max(RLIMIT_STACK)
which then sometimes leads to out-of-stack situations and crashes.

This patch fixes it by adding the maximum possible amount of memory (based on
STACK_RND_MASK) which theoretically could be added by the stack randomization
code to the initial stack size. That way, the user-defined stack size is always
guaranteed to be at minimum what is defined via rlimit_max(RLIMIT_STACK).

This bug is currently not visible on the metag architecture, because on metag
STACK_RND_MASK is defined to 0 which effectively disables stack randomization.

The changes to fs/exec.c are inside an "#ifdef CONFIG_STACK_GROWSUP"
section, so it does not affect other platformws beside those where the
stack grows upwards (parisc and metag).

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-metag@vger.kernel.org
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/parisc/include/asm/elf.h   | 4 ++++
 arch/parisc/kernel/sys_parisc.c | 3 +++
 fs/exec.c                       | 3 +++
 3 files changed, 10 insertions(+)

diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index 3391d06..78c9fd3 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -348,6 +348,10 @@ struct pt_regs;	/* forward declaration... */

 #define ELF_HWCAP	0

+#define STACK_RND_MASK	(is_32bit_task() ? \
+				0x7ff >> (PAGE_SHIFT - 12) : \
+				0x3ffff >> (PAGE_SHIFT - 12))
+
 struct mm_struct;
 extern unsigned long arch_randomize_brk(struct mm_struct *);
 #define arch_randomize_brk arch_randomize_brk
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index e1ffea2..5aba01a 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -77,6 +77,9 @@ static unsigned long mmap_upper_limit(void)
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;

+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }

diff --git a/fs/exec.c b/fs/exec.c
index 4617a4e..be18722 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -659,6 +659,9 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;

+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
 		return -ENOMEM;
--
1.9.1

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Helge Deller <deller@gmx.de>:
> On 15.06.2015 07:50, lausgans@gmail.com wrote:
>>
>> This patch adds hardware assisted scrolling. The code is based upon the
>> following investigation:
>> https://parisc.wiki.kernel.org/index.php/NGLE#Blitter A
>> simple 'time ls -la /usr/bin' test shows 1.6x speed increase over soft
>> copy and
>> 2.3x increase over FBINFO_READS_FAST (prefer soft copy over screen redraw)
>> on
>> Artist framebuffer.
>
>
> I haven't tested it yet, but that's very cool!
> Thanks!
>
> I wonder if adding a BlockTLB (with PA7100LC CPUs) further increases
> speed on Artist graphic cards (e.g. in X11)...?

Thanks for pointing me to this facility, Helge! I hadn't been aware of it.
"Standard Text Interface For Graphics Devices" document says we should
benefit from using it.
And an Artist ROM has both frame buffer and MMIO regions marked as
desirable for Block TLB. I hope other STI devices are ready for this
too.

Alex

>
> Helge
>
>> Signed-off-by: Alex Ivanov <lausgans@gmail.com>
>>
>> diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
>> index 86621fa..735355b 100644
>> --- a/drivers/video/fbdev/stifb.c
>> +++ b/drivers/video/fbdev/stifb.c
>> @@ -121,6 +121,7 @@ static int __initdata stifb_bpp_pref[MAX_STI_ROMS];
>> #define REG_3           0x0004a0
>> #define REG_4           0x000600
>> #define REG_6           0x000800
>> +#define REG_7          0x000804
>> #define REG_8           0x000820
>> #define REG_9           0x000a04
>> #define REG_10          0x018000
>> @@ -135,6 +136,8 @@ static int __initdata stifb_bpp_pref[MAX_STI_ROMS];
>> #define REG_21          0x200218
>> #define REG_22          0x0005a0
>> #define REG_23          0x0005c0
>> +#define REG_24         0x000808
>> +#define REG_25         0x000b00
>> #define REG_26          0x200118
>> #define REG_27          0x200308
>> #define REG_32          0x21003c
>> @@ -429,6 +432,9 @@ ARTIST_ENABLE_DISABLE_DISPLAY(struct stifb_info *fb,
>> int enable)
>> #define SET_LENXY_START_RECFILL(fb, lenxy) \
>>         WRITE_WORD(lenxy, fb, REG_9)
>>
>> +#define SETUP_COPYAREA(fb) \
>> +       WRITE_BYTE(0, fb, REG_16b1)
>> +
>> static void
>> HYPER_ENABLE_DISABLE_DISPLAY(struct stifb_info *fb, int enable)
>> {
>> @@ -1004,6 +1010,36 @@ stifb_blank(int blank_mode, struct fb_info *info)
>>         return 0;
>> }
>>
>> +static void
>> +stifb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
>> +{
>> +       struct stifb_info *fb = container_of(info, struct stifb_info,
>> info);
>> +
>> +       SETUP_COPYAREA(fb);
>> +
>> +       SETUP_HW(fb);
>> +       if (fb->info.var.bits_per_pixel == 32) {
>> +               WRITE_WORD(0xBBA0A000, fb, REG_10);
>> +
>> +               NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, 0xffffffff);
>> +       } else {
>> +               WRITE_WORD(fb->id == S9000_ID_HCRX ? 0x13a02000 :
>> 0x13a01000, fb, REG_10);
>> +
>> +               NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, 0xff);
>> +       }
>> +
>> +       NGLE_QUICK_SET_IMAGE_BITMAP_OP(fb,
>> +               IBOvals(RopSrc, MaskAddrOffset(0),
>> +               BitmapExtent08, StaticReg(1),
>> +               DataDynamic, MaskOtc, BGx(0), FGx(0)));
>> +
>> +       WRITE_WORD(((area->sx << 16) | area->sy), fb, REG_24);
>> +       WRITE_WORD(((area->width << 16) | area->height), fb, REG_7);
>> +       WRITE_WORD(((area->dx << 16) | area->dy), fb, REG_25);
>> +
>> +       SETUP_FB(fb);
>> +}
>> +
>> static void __init
>> stifb_init_display(struct stifb_info *fb)
>> {
>> @@ -1069,7 +1105,7 @@ static struct fb_ops stifb_ops = {
>>         .fb_setcolreg   = stifb_setcolreg,
>>         .fb_blank       = stifb_blank,
>>         .fb_fillrect    = cfb_fillrect,
>> -       .fb_copyarea    = cfb_copyarea,
>> +       .fb_copyarea    = stifb_copyarea,
>>         .fb_imageblit   = cfb_imageblit,
>> };
>>
>> @@ -1258,7 +1294,7 @@ static int __init stifb_init_fb(struct sti_struct
>> *sti, int bpp_pref)
>>         info->fbops = &stifb_ops;
>>         info->screen_base = ioremap_nocache(REGION_BASE(fb,1),
>> fix->smem_len);
>>         info->screen_size = fix->smem_len;
>> -       info->flags = FBINFO_DEFAULT;
>> +       info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA;
>>         info->pseudo_palette = &fb->pseudo_palette;
>>
>>         /* This has to be done !!! */
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
>
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Newsgroups: gmane.linux.ubuntu.devel.kernel.general,gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.kernel.metag,gmane.linux.ports.parisc
Subject: [PATCH 3.19.y-ckt 061/146] parisc,
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3.19.8-ckt2 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Helge Deller <deller@gmx.de>

commit d045c77c1a69703143a36169c224429c48b9eecd upstream.

On architectures where the stack grows upwards (CONFIG_STACK_GROWSUP=y,
currently parisc and metag only) stack randomization sometimes leads to crashes
when the stack ulimit is set to lower values than STACK_RND_MASK (which is 8 MB
by default if not defined in arch-specific headers).

The problem is, that when the stack vm_area_struct is set up in fs/exec.c, the
additional space needed for the stack randomization (as defined by the value of
STACK_RND_MASK) was not taken into account yet and as such, when the stack
randomization code added a random offset to the stack start, the stack
effectively got smaller than what the user defined via rlimit_max(RLIMIT_STACK)
which then sometimes leads to out-of-stack situations and crashes.

This patch fixes it by adding the maximum possible amount of memory (based on
STACK_RND_MASK) which theoretically could be added by the stack randomization
code to the initial stack size. That way, the user-defined stack size is always
guaranteed to be at minimum what is defined via rlimit_max(RLIMIT_STACK).

This bug is currently not visible on the metag architecture, because on metag
STACK_RND_MASK is defined to 0 which effectively disables stack randomization.

The changes to fs/exec.c are inside an "#ifdef CONFIG_STACK_GROWSUP"
section, so it does not affect other platformws beside those where the
stack grows upwards (parisc and metag).

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-metag@vger.kernel.org
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/parisc/include/asm/elf.h   | 4 ++++
 arch/parisc/kernel/sys_parisc.c | 3 +++
 fs/exec.c                       | 3 +++
 3 files changed, 10 insertions(+)

diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index 3391d06..78c9fd3 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -348,6 +348,10 @@ struct pt_regs;	/* forward declaration... */
 
 #define ELF_HWCAP	0
 
+#define STACK_RND_MASK	(is_32bit_task() ? \
+				0x7ff >> (PAGE_SHIFT - 12) : \
+				0x3ffff >> (PAGE_SHIFT - 12))
+
 struct mm_struct;
 extern unsigned long arch_randomize_brk(struct mm_struct *);
 #define arch_randomize_brk arch_randomize_brk
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index e1ffea2..5aba01a 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -77,6 +77,9 @@ static unsigned long mmap_upper_limit(void)
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;
 
+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	return PAGE_ALIGN(STACK_TOP - stack_base);
 }
 
diff --git a/fs/exec.c b/fs/exec.c
index 4617a4e..be18722 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -659,6 +659,9 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	if (stack_base > STACK_SIZE_MAX)
 		stack_base = STACK_SIZE_MAX;
 
+	/* Add space for stack randomization. */
+	stack_base += (STACK_RND_MASK << PAGE_SHIFT);
+
 	/* Make sure we didn't let the argument array grow too large. */
 	if (vma->vm_end - vma->vm_start > stack_base)
 		return -ENOMEM;
-- 
1.9.1



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To: Guenter Roeck <linux@roeck-us.net>, linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.hexagon/907>

On 10/06/2014 10:28 PM, Guenter Roeck wrote:
> Various drivers implement architecture and/or device specific means to
> remove power from the system.  For the most part, those drivers set the
> global variable pm_power_off to point to a function within the driver.
>
> This mechanism has a number of drawbacks.  Typically only one scheme
> to remove power is supported (at least if pm_power_off is used).
> At least in theory there can be multiple means remove power, some of
> which may be less desirable. For example, some mechanisms may only
> power off the CPU or the CPU card, while another may power off the
> entire system.  Others may really just execute a restart sequence
> or drop into the ROM monitor. Using pm_power_off can also be racy
> if the function pointer is set from a driver built as module, as the
> driver may be in the process of being unloaded when pm_power_off is
> called. If there are multiple poweroff handlers in the system, removing
> a module with such a handler may inadvertently reset the pointer to
> pm_power_off to NULL, leaving the system with no means to remove power.
>
> Introduce a system poweroff handler call chain to solve the described
> problems.  This call chain is expected to be executed from the
> architecture specific machine_power_off() function.  Drivers providing
> system poweroff functionality are expected to register with this call chain.
> By using the priority field in the notifier block, callers can control
> poweroff handler execution sequence and thus ensure that the poweroff
> handler with the optimal capabilities to remove power for a given system
> is called first.

What happened to this series? I want to add shutdown support to my
platform and I need to write a register on the PMIC in one driver to
configure it for shutdown instead of restart and then write an MMIO
register to tell the PMIC to actually do the shutdown in another driver.
It seems that the notifier solves this case for me, albeit with the
slight complication that I need to order the two with some priority.

I'm also considering putting the PMIC configuration part into the reboot
notifier chain, because it only does things to change the configuration
and not actually any shutdown/restart itself. That removes any
requirement to get the priority of notifiers right. This series will
still be useful for the MMIO register that needs to be toggled though.
Right now I have to assign pm_power_off or hook the reboot notifier with
a different priority to make this work.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project


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Subject: Re: [PATCH 01/44] kernel: Add support for poweroff handler call chain
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To: Stephen Boyd <sboyd@codeaurora.org>
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On Thu, Jun 18, 2015 at 3:04 AM, Stephen Boyd <sboyd@codeaurora.org> wrote:
> On 10/06/2014 10:28 PM, Guenter Roeck wrote:
>> Various drivers implement architecture and/or device specific means to
>> remove power from the system.  For the most part, those drivers set the
>> global variable pm_power_off to point to a function within the driver.
>>
>> This mechanism has a number of drawbacks.  Typically only one scheme
>> to remove power is supported (at least if pm_power_off is used).
>> At least in theory there can be multiple means remove power, some of
>> which may be less desirable. For example, some mechanisms may only
>> power off the CPU or the CPU card, while another may power off the
>> entire system.  Others may really just execute a restart sequence
>> or drop into the ROM monitor. Using pm_power_off can also be racy
>> if the function pointer is set from a driver built as module, as the
>> driver may be in the process of being unloaded when pm_power_off is
>> called. If there are multiple poweroff handlers in the system, removing
>> a module with such a handler may inadvertently reset the pointer to
>> pm_power_off to NULL, leaving the system with no means to remove power.
>>
>> Introduce a system poweroff handler call chain to solve the described
>> problems.  This call chain is expected to be executed from the
>> architecture specific machine_power_off() function.  Drivers providing
>> system poweroff functionality are expected to register with this call chain.
>> By using the priority field in the notifier block, callers can control
>> poweroff handler execution sequence and thus ensure that the poweroff
>> handler with the optimal capabilities to remove power for a given system
>> is called first.
>
> What happened to this series? I want to add shutdown support to my
> platform and I need to write a register on the PMIC in one driver to
> configure it for shutdown instead of restart and then write an MMIO
> register to tell the PMIC to actually do the shutdown in another driver.
> It seems that the notifier solves this case for me, albeit with the
> slight complication that I need to order the two with some priority.

I was wondering the same thing. I did find out that things kind of
stalled after Linus cast doubt on the chosen path [1]. I'm not sure
there's any consensus on what would be best to do instead.

Frans

[1] https://lkml.org/lkml/2014/11/6/641

From - Thu Nov 08 21:37:34 2018
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Subject: Re: [PATCH 01/44] kernel: Add support for poweroff handler call chain
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To: Frans Klaver <fransklaver-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
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On 06/17/2015 11:53 PM, Frans Klaver wrote:
> On Thu, Jun 18, 2015 at 3:04 AM, Stephen Boyd <sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> wrote:
>> On 10/06/2014 10:28 PM, Guenter Roeck wrote:
>>> Various drivers implement architecture and/or device specific means to
>>> remove power from the system.  For the most part, those drivers set the
>>> global variable pm_power_off to point to a function within the driver.
>>>
>>> This mechanism has a number of drawbacks.  Typically only one scheme
>>> to remove power is supported (at least if pm_power_off is used).
>>> At least in theory there can be multiple means remove power, some of
>>> which may be less desirable. For example, some mechanisms may only
>>> power off the CPU or the CPU card, while another may power off the
>>> entire system.  Others may really just execute a restart sequence
>>> or drop into the ROM monitor. Using pm_power_off can also be racy
>>> if the function pointer is set from a driver built as module, as the
>>> driver may be in the process of being unloaded when pm_power_off is
>>> called. If there are multiple poweroff handlers in the system, removing
>>> a module with such a handler may inadvertently reset the pointer to
>>> pm_power_off to NULL, leaving the system with no means to remove power.
>>>
>>> Introduce a system poweroff handler call chain to solve the described
>>> problems.  This call chain is expected to be executed from the
>>> architecture specific machine_power_off() function.  Drivers providing
>>> system poweroff functionality are expected to register with this call chain.
>>> By using the priority field in the notifier block, callers can control
>>> poweroff handler execution sequence and thus ensure that the poweroff
>>> handler with the optimal capabilities to remove power for a given system
>>> is called first.
>>
>> What happened to this series? I want to add shutdown support to my
>> platform and I need to write a register on the PMIC in one driver to
>> configure it for shutdown instead of restart and then write an MMIO
>> register to tell the PMIC to actually do the shutdown in another driver.
>> It seems that the notifier solves this case for me, albeit with the
>> slight complication that I need to order the two with some priority.
>
> I was wondering the same thing. I did find out that things kind of
> stalled after Linus cast doubt on the chosen path [1]. I'm not sure
> there's any consensus on what would be best to do instead.
>

Linus cast doubt on it, then the maintainers started picking it apart.
At the end, trying not to use notifier callbacks made the code so
complicated that even I didn't understand it anymore. With no consensus
in sight, I abandoned it.

Problem is really that the notifier call chain would be perfect to solve
the problem, yet Linus didn't like priorities (which are essential),
and the power maintainers didn't like that a call chain is supposed
to execute _all_ callbacks, which would not be the case here. If I were
to start again, I would insist to use notifiers. However, I don't see
a chance to get that accepted, so I won't. Feel free to pick it up and
give it a try yourself.

Thanks,
Guenter


From - Thu Nov 08 21:37:34 2018
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Subject: Re: [PATCH 01/44] kernel: Add support for poweroff handler call chain
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To: Guenter Roeck <linux@roeck-us.net>
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On Thu, Jun 18, 2015 at 1:54 PM, Guenter Roeck <linux@roeck-us.net> wrote:
> On 06/17/2015 11:53 PM, Frans Klaver wrote:
>>
>> On Thu, Jun 18, 2015 at 3:04 AM, Stephen Boyd <sboyd@codeaurora.org>
>> wrote:
>>>
>>> On 10/06/2014 10:28 PM, Guenter Roeck wrote:
>>>>
>>>> Various drivers implement architecture and/or device specific means to
>>>> remove power from the system.  For the most part, those drivers set the
>>>> global variable pm_power_off to point to a function within the driver.
>>>>
>>>> This mechanism has a number of drawbacks.  Typically only one scheme
>>>> to remove power is supported (at least if pm_power_off is used).
>>>> At least in theory there can be multiple means remove power, some of
>>>> which may be less desirable. For example, some mechanisms may only
>>>> power off the CPU or the CPU card, while another may power off the
>>>> entire system.  Others may really just execute a restart sequence
>>>> or drop into the ROM monitor. Using pm_power_off can also be racy
>>>> if the function pointer is set from a driver built as module, as the
>>>> driver may be in the process of being unloaded when pm_power_off is
>>>> called. If there are multiple poweroff handlers in the system, removing
>>>> a module with such a handler may inadvertently reset the pointer to
>>>> pm_power_off to NULL, leaving the system with no means to remove power.
>>>>
>>>> Introduce a system poweroff handler call chain to solve the described
>>>> problems.  This call chain is expected to be executed from the
>>>> architecture specific machine_power_off() function.  Drivers providing
>>>> system poweroff functionality are expected to register with this call
>>>> chain.
>>>> By using the priority field in the notifier block, callers can control
>>>> poweroff handler execution sequence and thus ensure that the poweroff
>>>> handler with the optimal capabilities to remove power for a given system
>>>> is called first.
>>>
>>>
>>> What happened to this series? I want to add shutdown support to my
>>> platform and I need to write a register on the PMIC in one driver to
>>> configure it for shutdown instead of restart and then write an MMIO
>>> register to tell the PMIC to actually do the shutdown in another driver.
>>> It seems that the notifier solves this case for me, albeit with the
>>> slight complication that I need to order the two with some priority.
>>
>>
>> I was wondering the same thing. I did find out that things kind of
>> stalled after Linus cast doubt on the chosen path [1]. I'm not sure
>> there's any consensus on what would be best to do instead.
>>
>
> Linus cast doubt on it, then the maintainers started picking it apart.
> At the end, trying not to use notifier callbacks made the code so
> complicated that even I didn't understand it anymore. With no consensus
> in sight, I abandoned it.
>
> Problem is really that the notifier call chain would be perfect to solve
> the problem, yet Linus didn't like priorities (which are essential),
> and the power maintainers didn't like that a call chain is supposed
> to execute _all_ callbacks, which would not be the case here. If I were
> to start again, I would insist to use notifiers. However, I don't see
> a chance to get that accepted, so I won't. Feel free to pick it up and
> give it a try yourself.

How about having two phases? One where all interested parts of the
system get notified, one that does the final shutdown. It's a slightly
different approach than you took, but does use the notifier chains as
expected, and can be used to prepare peripherals for shutdown, if
there's a use case for it.

The two-stage approach does keep the single place to power down. I
expect it would become more obvious that it would be silly to have
more than one actual system power down sequence and hiding
pm_power_off and unifying setting of it should become more straight
forward as well.

Thoughts?

Thanks,
Frans

From - Thu Nov 08 21:37:34 2018
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Subject: Re: [RESEND PATCH V2 1/3] Add mmap flag to request pages are locked
 after page fault
Date: Thu, 18 Jun 2015 17:29:07 +0200
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To: Eric B Munson <emunson@akamai.com>
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[Sorry for the late reply - I meant to answer in the previous threads
 but something always preempted me from that]

On Wed 10-06-15 09:26:48, Eric B Munson wrote:
> The cost of faulting in all memory to be locked can be very high when
> working with large mappings.  If only portions of the mapping will be
> used this can incur a high penalty for locking.
> 
> For the example of a large file, this is the usage pattern for a large
> statical language model (probably applies to other statical or graphical
> models as well).  For the security example, any application transacting
> in data that cannot be swapped out (credit card data, medical records,
> etc).

Such a use case makes some sense to me but I am not sure the way you
implement it is the right one. This is another mlock related flag for
mmap with a different semantic. You do not want to prefault but e.g. is
the readahead or fault around acceptable? I do not see anything in your
patch to handle those...

Wouldn't it be much more reasonable and straightforward to have
MAP_FAULTPOPULATE as a counterpart for MAP_POPULATE which would
explicitly disallow any form of pre-faulting? It would be usable for
other usecases than with MAP_LOCKED combination.

> This patch introduces the ability to request that pages are not
> pre-faulted, but are placed on the unevictable LRU when they are finally
> faulted in.
> 
> To keep accounting checks out of the page fault path, users are billed
> for the entire mapping lock as if MAP_LOCKED was used.
> 
> Signed-off-by: Eric B Munson <emunson@akamai.com>
> Cc: Michal Hocko <mhocko@suse.cz>
> Cc: linux-alpha@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-mips@linux-mips.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: sparclinux@vger.kernel.org
> Cc: linux-xtensa@linux-xtensa.org
> Cc: linux-mm@kvack.org
> Cc: linux-arch@vger.kernel.org
> Cc: linux-api@vger.kernel.org
> ---
>  arch/alpha/include/uapi/asm/mman.h   | 1 +
>  arch/mips/include/uapi/asm/mman.h    | 1 +
>  arch/parisc/include/uapi/asm/mman.h  | 1 +
>  arch/powerpc/include/uapi/asm/mman.h | 1 +
>  arch/sparc/include/uapi/asm/mman.h   | 1 +
>  arch/tile/include/uapi/asm/mman.h    | 1 +
>  arch/xtensa/include/uapi/asm/mman.h  | 1 +
>  include/linux/mm.h                   | 1 +
>  include/linux/mman.h                 | 3 ++-
>  include/uapi/asm-generic/mman.h      | 1 +
>  mm/mmap.c                            | 4 ++--
>  mm/swap.c                            | 3 ++-
>  12 files changed, 15 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
> index 0086b47..15e96e1 100644
> --- a/arch/alpha/include/uapi/asm/mman.h
> +++ b/arch/alpha/include/uapi/asm/mman.h
> @@ -30,6 +30,7 @@
>  #define MAP_NONBLOCK	0x40000		/* do not block on IO */
>  #define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
>  #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
> +#define MAP_LOCKONFAULT	0x200000	/* Lock pages after they are faulted in, do not prefault */
>  
>  #define MS_ASYNC	1		/* sync memory asynchronously */
>  #define MS_SYNC		2		/* synchronous memory sync */
> diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
> index cfcb876..47846a5 100644
> --- a/arch/mips/include/uapi/asm/mman.h
> +++ b/arch/mips/include/uapi/asm/mman.h
> @@ -48,6 +48,7 @@
>  #define MAP_NONBLOCK	0x20000		/* do not block on IO */
>  #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
>  #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
> +#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
>  
>  /*
>   * Flags for msync
> diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
> index 294d251..1514cd7 100644
> --- a/arch/parisc/include/uapi/asm/mman.h
> +++ b/arch/parisc/include/uapi/asm/mman.h
> @@ -24,6 +24,7 @@
>  #define MAP_NONBLOCK	0x20000		/* do not block on IO */
>  #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
>  #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
> +#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
>  
>  #define MS_SYNC		1		/* synchronous memory sync */
>  #define MS_ASYNC	2		/* sync memory asynchronously */
> diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
> index 6ea26df..fce74fe 100644
> --- a/arch/powerpc/include/uapi/asm/mman.h
> +++ b/arch/powerpc/include/uapi/asm/mman.h
> @@ -27,5 +27,6 @@
>  #define MAP_NONBLOCK	0x10000		/* do not block on IO */
>  #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
>  #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
> +#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
>  
>  #endif /* _UAPI_ASM_POWERPC_MMAN_H */
> diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
> index 0b14df3..12425d8 100644
> --- a/arch/sparc/include/uapi/asm/mman.h
> +++ b/arch/sparc/include/uapi/asm/mman.h
> @@ -22,6 +22,7 @@
>  #define MAP_NONBLOCK	0x10000		/* do not block on IO */
>  #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
>  #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
> +#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
>  
>  
>  #endif /* _UAPI__SPARC_MMAN_H__ */
> diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
> index 81b8fc3..ec04eaf 100644
> --- a/arch/tile/include/uapi/asm/mman.h
> +++ b/arch/tile/include/uapi/asm/mman.h
> @@ -29,6 +29,7 @@
>  #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
>  #define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
>  #define MAP_HUGETLB	0x4000		/* create a huge page mapping */
> +#define MAP_LOCKONFAULT	0x8000		/* Lock pages after they are faulted in, do not prefault */
>  
>  
>  /*
> diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
> index 201aec0..42d43cc 100644
> --- a/arch/xtensa/include/uapi/asm/mman.h
> +++ b/arch/xtensa/include/uapi/asm/mman.h
> @@ -55,6 +55,7 @@
>  #define MAP_NONBLOCK	0x20000		/* do not block on IO */
>  #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
>  #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
> +#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
>  #ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
>  # define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be
>  					 * uninitialized */
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 0755b9f..3e31457 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -126,6 +126,7 @@ extern unsigned int kobjsize(const void *objp);
>  #define VM_PFNMAP	0x00000400	/* Page-ranges managed without "struct page", just pure PFN */
>  #define VM_DENYWRITE	0x00000800	/* ETXTBSY on write attempts.. */
>  
> +#define VM_LOCKONFAULT	0x00001000	/* Lock the pages covered when they are faulted in */
>  #define VM_LOCKED	0x00002000
>  #define VM_IO           0x00004000	/* Memory mapped I/O or similar */
>  
> diff --git a/include/linux/mman.h b/include/linux/mman.h
> index 16373c8..437264b 100644
> --- a/include/linux/mman.h
> +++ b/include/linux/mman.h
> @@ -86,7 +86,8 @@ calc_vm_flag_bits(unsigned long flags)
>  {
>  	return _calc_vm_trans(flags, MAP_GROWSDOWN,  VM_GROWSDOWN ) |
>  	       _calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
> -	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    );
> +	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    ) |
> +	       _calc_vm_trans(flags, MAP_LOCKONFAULT,VM_LOCKONFAULT);
>  }
>  
>  unsigned long vm_commit_limit(void);
> diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
> index e9fe6fd..fc4e586 100644
> --- a/include/uapi/asm-generic/mman.h
> +++ b/include/uapi/asm-generic/mman.h
> @@ -12,6 +12,7 @@
>  #define MAP_NONBLOCK	0x10000		/* do not block on IO */
>  #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
>  #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
> +#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
>  
>  /* Bits [26:31] are reserved, see mman-common.h for MAP_HUGETLB usage */
>  
> diff --git a/mm/mmap.c b/mm/mmap.c
> index bb50cac..ba1a6bf 100644
> --- a/mm/mmap.c
> +++ b/mm/mmap.c
> @@ -1233,7 +1233,7 @@ static inline int mlock_future_check(struct mm_struct *mm,
>  	unsigned long locked, lock_limit;
>  
>  	/*  mlock MCL_FUTURE? */
> -	if (flags & VM_LOCKED) {
> +	if (flags & (VM_LOCKED | VM_LOCKONFAULT)) {
>  		locked = len >> PAGE_SHIFT;
>  		locked += mm->locked_vm;
>  		lock_limit = rlimit(RLIMIT_MEMLOCK);
> @@ -1301,7 +1301,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
>  	vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
>  			mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
>  
> -	if (flags & MAP_LOCKED)
> +	if (flags & (MAP_LOCKED | MAP_LOCKONFAULT))
>  		if (!can_do_mlock())
>  			return -EPERM;
>  
> diff --git a/mm/swap.c b/mm/swap.c
> index a7251a8..07c905e 100644
> --- a/mm/swap.c
> +++ b/mm/swap.c
> @@ -711,7 +711,8 @@ void lru_cache_add_active_or_unevictable(struct page *page,
>  {
>  	VM_BUG_ON_PAGE(PageLRU(page), page);
>  
> -	if (likely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) != VM_LOCKED)) {
> +	if (likely((vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) == 0) ||
> +		   (vma->vm_flags & VM_SPECIAL)) {
>  		SetPageActive(page);
>  		lru_cache_add(page);
>  		return;
> -- 
> 1.9.1
> 

-- 
Michal Hocko
SUSE Labs
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From - Thu Nov 08 21:37:34 2018
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Subject: Re: [PATCH 01/44] kernel: Add support for poweroff handler call chain
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To: Stephen Boyd <sboyd@codeaurora.org>
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On Wed, Jun 17, 2015 at 06:04:54PM -0700, Stephen Boyd wrote:
[ ... ]
> 
> What happened to this series? I want to add shutdown support to my
> platform and I need to write a register on the PMIC in one driver to
> configure it for shutdown instead of restart and then write an MMIO
> register to tell the PMIC to actually do the shutdown in another driver.
> It seems that the notifier solves this case for me, albeit with the
> slight complication that I need to order the two with some priority.
> 
Can you use the .shutdown driver callback instead ?

I see other drivers use that, and check for system_state == SYSTEM_POWER_OFF
to power off the hardware.

Guenter
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On Thu, 18 Jun 2015, Michal Hocko wrote:

> [Sorry for the late reply - I meant to answer in the previous threads
>  but something always preempted me from that]
>=20
> On Wed 10-06-15 09:26:48, Eric B Munson wrote:
> > The cost of faulting in all memory to be locked can be very high when
> > working with large mappings.  If only portions of the mapping will be
> > used this can incur a high penalty for locking.
> >=20
> > For the example of a large file, this is the usage pattern for a large
> > statical language model (probably applies to other statical or graphical
> > models as well).  For the security example, any application transacting
> > in data that cannot be swapped out (credit card data, medical records,
> > etc).
>=20
> Such a use case makes some sense to me but I am not sure the way you
> implement it is the right one. This is another mlock related flag for
> mmap with a different semantic. You do not want to prefault but e.g. is
> the readahead or fault around acceptable? I do not see anything in your
> patch to handle those...

We haven't bumped into readahead or fault around causing performance
problems for us.  If they cause problems for users when LOCKONFAULT is
in use then we can address them.

>=20
> Wouldn't it be much more reasonable and straightforward to have
> MAP_FAULTPOPULATE as a counterpart for MAP_POPULATE which would
> explicitly disallow any form of pre-faulting? It would be usable for
> other usecases than with MAP_LOCKED combination.

I don't see a clear case for it being more reasonable, it is one
possible way to solve the problem.  But I think it leaves us in an even
more akward state WRT VMA flags.  As you noted in your fix for the
mmap() man page, one can get into a state where a VMA is VM_LOCKED, but
not present.  Having VM_LOCKONFAULT states that this was intentional, if
we go to using MAP_FAULTPOPULATE instead of MAP_LOCKONFAULT, we no
longer set VM_LOCKONFAULT (unless we want to start mapping it to the
presence of two MAP_ flags).  This can make detecting the MAP_LOCKED +
populate failure state harder.

If this is the preferred path for mmap(), I am fine with that.  However,
I would like to see the new system calls that Andrew mentioned (and that
I am testing patches for) go in as well.  That way we give users the
ability to request VM_LOCKONFAULT for memory allocated using something
other than mmap.

>=20
> > This patch introduces the ability to request that pages are not
> > pre-faulted, but are placed on the unevictable LRU when they are finally
> > faulted in.
> >=20
> > To keep accounting checks out of the page fault path, users are billed
> > for the entire mapping lock as if MAP_LOCKED was used.
> >=20
> > Signed-off-by: Eric B Munson <emunson@akamai.com>
> > Cc: Michal Hocko <mhocko@suse.cz>
> > Cc: linux-alpha@vger.kernel.org
> > Cc: linux-kernel@vger.kernel.org
> > Cc: linux-mips@linux-mips.org
> > Cc: linux-parisc@vger.kernel.org
> > Cc: linuxppc-dev@lists.ozlabs.org
> > Cc: sparclinux@vger.kernel.org
> > Cc: linux-xtensa@linux-xtensa.org
> > Cc: linux-mm@kvack.org
> > Cc: linux-arch@vger.kernel.org
> > Cc: linux-api@vger.kernel.org
> > ---
> >  arch/alpha/include/uapi/asm/mman.h   | 1 +
> >  arch/mips/include/uapi/asm/mman.h    | 1 +
> >  arch/parisc/include/uapi/asm/mman.h  | 1 +
> >  arch/powerpc/include/uapi/asm/mman.h | 1 +
> >  arch/sparc/include/uapi/asm/mman.h   | 1 +
> >  arch/tile/include/uapi/asm/mman.h    | 1 +
> >  arch/xtensa/include/uapi/asm/mman.h  | 1 +
> >  include/linux/mm.h                   | 1 +
> >  include/linux/mman.h                 | 3 ++-
> >  include/uapi/asm-generic/mman.h      | 1 +
> >  mm/mmap.c                            | 4 ++--
> >  mm/swap.c                            | 3 ++-
> >  12 files changed, 15 insertions(+), 4 deletions(-)
> >=20
> > diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/ua=
pi/asm/mman.h
> > index 0086b47..15e96e1 100644
> > --- a/arch/alpha/include/uapi/asm/mman.h
> > +++ b/arch/alpha/include/uapi/asm/mman.h
> > @@ -30,6 +30,7 @@
> >  #define MAP_NONBLOCK	0x40000		/* do not block on IO */
> >  #define MAP_STACK	0x80000		/* give out an address that is best suited =
for process/thread stacks */
> >  #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
> > +#define MAP_LOCKONFAULT	0x200000	/* Lock pages after they are faulted =
in, do not prefault */
> > =20
> >  #define MS_ASYNC	1		/* sync memory asynchronously */
> >  #define MS_SYNC		2		/* synchronous memory sync */
> > diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi=
/asm/mman.h
> > index cfcb876..47846a5 100644
> > --- a/arch/mips/include/uapi/asm/mman.h
> > +++ b/arch/mips/include/uapi/asm/mman.h
> > @@ -48,6 +48,7 @@
> >  #define MAP_NONBLOCK	0x20000		/* do not block on IO */
> >  #define MAP_STACK	0x40000		/* give out an address that is best suited =
for process/thread stacks */
> >  #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
> > +#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted =
in, do not prefault */
> > =20
> >  /*
> >   * Flags for msync
> > diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/=
uapi/asm/mman.h
> > index 294d251..1514cd7 100644
> > --- a/arch/parisc/include/uapi/asm/mman.h
> > +++ b/arch/parisc/include/uapi/asm/mman.h
> > @@ -24,6 +24,7 @@
> >  #define MAP_NONBLOCK	0x20000		/* do not block on IO */
> >  #define MAP_STACK	0x40000		/* give out an address that is best suited =
for process/thread stacks */
> >  #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
> > +#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted =
in, do not prefault */
> > =20
> >  #define MS_SYNC		1		/* synchronous memory sync */
> >  #define MS_ASYNC	2		/* sync memory asynchronously */
> > diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/includ=
e/uapi/asm/mman.h
> > index 6ea26df..fce74fe 100644
> > --- a/arch/powerpc/include/uapi/asm/mman.h
> > +++ b/arch/powerpc/include/uapi/asm/mman.h
> > @@ -27,5 +27,6 @@
> >  #define MAP_NONBLOCK	0x10000		/* do not block on IO */
> >  #define MAP_STACK	0x20000		/* give out an address that is best suited =
for process/thread stacks */
> >  #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
> > +#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted =
in, do not prefault */
> > =20
> >  #endif /* _UAPI_ASM_POWERPC_MMAN_H */
> > diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/ua=
pi/asm/mman.h
> > index 0b14df3..12425d8 100644
> > --- a/arch/sparc/include/uapi/asm/mman.h
> > +++ b/arch/sparc/include/uapi/asm/mman.h
> > @@ -22,6 +22,7 @@
> >  #define MAP_NONBLOCK	0x10000		/* do not block on IO */
> >  #define MAP_STACK	0x20000		/* give out an address that is best suited =
for process/thread stacks */
> >  #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
> > +#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted =
in, do not prefault */
> > =20
> > =20
> >  #endif /* _UAPI__SPARC_MMAN_H__ */
> > diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi=
/asm/mman.h
> > index 81b8fc3..ec04eaf 100644
> > --- a/arch/tile/include/uapi/asm/mman.h
> > +++ b/arch/tile/include/uapi/asm/mman.h
> > @@ -29,6 +29,7 @@
> >  #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
> >  #define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
> >  #define MAP_HUGETLB	0x4000		/* create a huge page mapping */
> > +#define MAP_LOCKONFAULT	0x8000		/* Lock pages after they are faulted i=
n, do not prefault */
> > =20
> > =20
> >  /*
> > diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/=
uapi/asm/mman.h
> > index 201aec0..42d43cc 100644
> > --- a/arch/xtensa/include/uapi/asm/mman.h
> > +++ b/arch/xtensa/include/uapi/asm/mman.h
> > @@ -55,6 +55,7 @@
> >  #define MAP_NONBLOCK	0x20000		/* do not block on IO */
> >  #define MAP_STACK	0x40000		/* give out an address that is best suited =
for process/thread stacks */
> >  #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
> > +#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted =
in, do not prefault */
> >  #ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
> >  # define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory cou=
ld be
> >  					 * uninitialized */
> > diff --git a/include/linux/mm.h b/include/linux/mm.h
> > index 0755b9f..3e31457 100644
> > --- a/include/linux/mm.h
> > +++ b/include/linux/mm.h
> > @@ -126,6 +126,7 @@ extern unsigned int kobjsize(const void *objp);
> >  #define VM_PFNMAP	0x00000400	/* Page-ranges managed without "struct pa=
ge", just pure PFN */
> >  #define VM_DENYWRITE	0x00000800	/* ETXTBSY on write attempts.. */
> > =20
> > +#define VM_LOCKONFAULT	0x00001000	/* Lock the pages covered when they =
are faulted in */
> >  #define VM_LOCKED	0x00002000
> >  #define VM_IO           0x00004000	/* Memory mapped I/O or similar */
> > =20
> > diff --git a/include/linux/mman.h b/include/linux/mman.h
> > index 16373c8..437264b 100644
> > --- a/include/linux/mman.h
> > +++ b/include/linux/mman.h
> > @@ -86,7 +86,8 @@ calc_vm_flag_bits(unsigned long flags)
> >  {
> >  	return _calc_vm_trans(flags, MAP_GROWSDOWN,  VM_GROWSDOWN ) |
> >  	       _calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
> > -	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    );
> > +	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    ) |
> > +	       _calc_vm_trans(flags, MAP_LOCKONFAULT,VM_LOCKONFAULT);
> >  }
> > =20
> >  unsigned long vm_commit_limit(void);
> > diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic=
/mman.h
> > index e9fe6fd..fc4e586 100644
> > --- a/include/uapi/asm-generic/mman.h
> > +++ b/include/uapi/asm-generic/mman.h
> > @@ -12,6 +12,7 @@
> >  #define MAP_NONBLOCK	0x10000		/* do not block on IO */
> >  #define MAP_STACK	0x20000		/* give out an address that is best suited =
for process/thread stacks */
> >  #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
> > +#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted =
in, do not prefault */
> > =20
> >  /* Bits [26:31] are reserved, see mman-common.h for MAP_HUGETLB usage =
*/
> > =20
> > diff --git a/mm/mmap.c b/mm/mmap.c
> > index bb50cac..ba1a6bf 100644
> > --- a/mm/mmap.c
> > +++ b/mm/mmap.c
> > @@ -1233,7 +1233,7 @@ static inline int mlock_future_check(struct mm_st=
ruct *mm,
> >  	unsigned long locked, lock_limit;
> > =20
> >  	/*  mlock MCL_FUTURE? */
> > -	if (flags & VM_LOCKED) {
> > +	if (flags & (VM_LOCKED | VM_LOCKONFAULT)) {
> >  		locked =3D len >> PAGE_SHIFT;
> >  		locked +=3D mm->locked_vm;
> >  		lock_limit =3D rlimit(RLIMIT_MEMLOCK);
> > @@ -1301,7 +1301,7 @@ unsigned long do_mmap_pgoff(struct file *file, un=
signed long addr,
> >  	vm_flags =3D calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
> >  			mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
> > =20
> > -	if (flags & MAP_LOCKED)
> > +	if (flags & (MAP_LOCKED | MAP_LOCKONFAULT))
> >  		if (!can_do_mlock())
> >  			return -EPERM;
> > =20
> > diff --git a/mm/swap.c b/mm/swap.c
> > index a7251a8..07c905e 100644
> > --- a/mm/swap.c
> > +++ b/mm/swap.c
> > @@ -711,7 +711,8 @@ void lru_cache_add_active_or_unevictable(struct pag=
e *page,
> >  {
> >  	VM_BUG_ON_PAGE(PageLRU(page), page);
> > =20
> > -	if (likely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) !=3D VM_LOCKED)=
) {
> > +	if (likely((vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) =3D=3D 0) ||
> > +		   (vma->vm_flags & VM_SPECIAL)) {
> >  		SetPageActive(page);
> >  		lru_cache_add(page);
> >  		return;
> > --=20
> > 1.9.1
> >=20
>=20
> --=20
> Michal Hocko
> SUSE Labs

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From - Thu Nov 08 21:37:34 2018
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From: Stephen Boyd <sboyd@codeaurora.org>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.kernel.efi,gmane.linux.ports.ia64,gmane.linux.kernel.virtualization.lguest,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.acpi.devel,gmane.linux.drivers.devicetree,gmane.linux.uml.devel,gmane.linux.power-management.general,gmane.linux.ports.tegra,gmane.linux.kernel.openipmi,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 01/44] kernel: Add support for poweroff handler call chain
Date: Thu, 18 Jun 2015 14:40:18 -0700
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To: Guenter Roeck <linux@roeck-us.net>
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On 06/18/2015 08:30 AM, Guenter Roeck wrote:
> On Wed, Jun 17, 2015 at 06:04:54PM -0700, Stephen Boyd wrote:
> [ ... ]
>> What happened to this series? I want to add shutdown support to my
>> platform and I need to write a register on the PMIC in one driver to
>> configure it for shutdown instead of restart and then write an MMIO
>> register to tell the PMIC to actually do the shutdown in another driver.
>> It seems that the notifier solves this case for me, albeit with the
>> slight complication that I need to order the two with some priority.
>>
> Can you use the .shutdown driver callback instead ?
>
> I see other drivers use that, and check for system_state == SYSTEM_POWER_OFF
> to power off the hardware.
>

Yes I think that will work. I'll still have to hook pm_power_off() for
the mmio register, but I guess that's ok and I don't need to worry about
this series then.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project


From - Thu Nov 08 21:37:34 2018
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From: Michal Hocko <mhocko@suse.cz>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.api
Subject: Re: [RESEND PATCH V2 1/3] Add mmap flag to request pages are locked
 after page fault
Date: Fri, 19 Jun 2015 16:57:08 +0200
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To: Eric B Munson <emunson@akamai.com>
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On Thu 18-06-15 16:30:48, Eric B Munson wrote:
> On Thu, 18 Jun 2015, Michal Hocko wrote:
[...]
> > Wouldn't it be much more reasonable and straightforward to have
> > MAP_FAULTPOPULATE as a counterpart for MAP_POPULATE which would
> > explicitly disallow any form of pre-faulting? It would be usable for
> > other usecases than with MAP_LOCKED combination.
> 
> I don't see a clear case for it being more reasonable, it is one
> possible way to solve the problem.

MAP_FAULTPOPULATE would be usable for other cases as well. E.g. fault
around is all or nothing feature. Either all mappings (which support
this) fault around or none. There is no way to tell the kernel that
this particular mapping shouldn't fault around. I haven't seen such a
request yet but we have seen requests to have a way to opt out from
a global policy in the past (e.g. per-process opt out from THP). So
I can imagine somebody will come with a request to opt out from any
speculative operations on the mapped area in the future.

> But I think it leaves us in an even
> more akward state WRT VMA flags.  As you noted in your fix for the
> mmap() man page, one can get into a state where a VMA is VM_LOCKED, but
> not present.  Having VM_LOCKONFAULT states that this was intentional, if
> we go to using MAP_FAULTPOPULATE instead of MAP_LOCKONFAULT, we no
> longer set VM_LOCKONFAULT (unless we want to start mapping it to the
> presence of two MAP_ flags).  This can make detecting the MAP_LOCKED +
> populate failure state harder.

I am not sure I understand your point here. Could you be more specific
how would you check for that and what for?

>From my understanding MAP_LOCKONFAULT is essentially
MAP_FAULTPOPULATE|MAP_LOCKED with a quite obvious semantic (unlike
single MAP_LOCKED unfortunately). I would love to also have
MAP_LOCKED|MAP_POPULATE (aka full mlock semantic) but I am really
skeptical considering how my previous attempt to make MAP_POPULATE
reasonable went.

> If this is the preferred path for mmap(), I am fine with that. 

> However,
> I would like to see the new system calls that Andrew mentioned (and that
> I am testing patches for) go in as well. 

mlock with flags sounds like a good step but I am not sure it will make
sense in the future. POSIX has screwed that and I am not sure how many
applications would use it. This ship has sailed long time ago.

> That way we give users the
> ability to request VM_LOCKONFAULT for memory allocated using something
> other than mmap.

mmap(MAP_FAULTPOPULATE); mlock() would have the same semantic even
without changing mlock syscall.
 
> > > This patch introduces the ability to request that pages are not
> > > pre-faulted, but are placed on the unevictable LRU when they are finally
> > > faulted in.
> > > 
> > > To keep accounting checks out of the page fault path, users are billed
> > > for the entire mapping lock as if MAP_LOCKED was used.
> > > 
> > > Signed-off-by: Eric B Munson <emunson@akamai.com>
> > > Cc: Michal Hocko <mhocko@suse.cz>
> > > Cc: linux-alpha@vger.kernel.org
> > > Cc: linux-kernel@vger.kernel.org
> > > Cc: linux-mips@linux-mips.org
> > > Cc: linux-parisc@vger.kernel.org
> > > Cc: linuxppc-dev@lists.ozlabs.org
> > > Cc: sparclinux@vger.kernel.org
> > > Cc: linux-xtensa@linux-xtensa.org
> > > Cc: linux-mm@kvack.org
> > > Cc: linux-arch@vger.kernel.org
> > > Cc: linux-api@vger.kernel.org
> > > ---
[...]
-- 
Michal Hocko
SUSE Labs

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Subject: Re: [RESEND PATCH V2 1/3] Add mmap flag to request pages are locked
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On Fri, 19 Jun 2015, Michal Hocko wrote:

> On Thu 18-06-15 16:30:48, Eric B Munson wrote:
> > On Thu, 18 Jun 2015, Michal Hocko wrote:
> [...]
> > > Wouldn't it be much more reasonable and straightforward to have
> > > MAP_FAULTPOPULATE as a counterpart for MAP_POPULATE which would
> > > explicitly disallow any form of pre-faulting? It would be usable for
> > > other usecases than with MAP_LOCKED combination.
> >=20
> > I don't see a clear case for it being more reasonable, it is one
> > possible way to solve the problem.
>=20
> MAP_FAULTPOPULATE would be usable for other cases as well. E.g. fault
> around is all or nothing feature. Either all mappings (which support
> this) fault around or none. There is no way to tell the kernel that
> this particular mapping shouldn't fault around. I haven't seen such a
> request yet but we have seen requests to have a way to opt out from
> a global policy in the past (e.g. per-process opt out from THP). So
> I can imagine somebody will come with a request to opt out from any
> speculative operations on the mapped area in the future.
>=20
> > But I think it leaves us in an even
> > more akward state WRT VMA flags.  As you noted in your fix for the
> > mmap() man page, one can get into a state where a VMA is VM_LOCKED, but
> > not present.  Having VM_LOCKONFAULT states that this was intentional, if
> > we go to using MAP_FAULTPOPULATE instead of MAP_LOCKONFAULT, we no
> > longer set VM_LOCKONFAULT (unless we want to start mapping it to the
> > presence of two MAP_ flags).  This can make detecting the MAP_LOCKED +
> > populate failure state harder.
>=20
> I am not sure I understand your point here. Could you be more specific
> how would you check for that and what for?

My thought on detecting was that someone might want to know if they had
a VMA that was VM_LOCKED but had not been made present becuase of a
failure in mmap.  We don't have a way today, but adding VM_LOCKONFAULT
is at least explicit about what is happening which would make detecting
the VM_LOCKED but not present state easier.  This assumes that
MAP_FAULTPOPULATE does not translate to a VMA flag, but it sounds like
it would have to.

>=20
> From my understanding MAP_LOCKONFAULT is essentially
> MAP_FAULTPOPULATE|MAP_LOCKED with a quite obvious semantic (unlike
> single MAP_LOCKED unfortunately). I would love to also have
> MAP_LOCKED|MAP_POPULATE (aka full mlock semantic) but I am really
> skeptical considering how my previous attempt to make MAP_POPULATE
> reasonable went.

Are you objecting to the addition of the VMA flag VM_LOCKONFAULT, or the
new MAP_LOCKONFAULT flag (or both)?  If you prefer that MAP_LOCKED |
MAP_FAULTPOPULATE means that VM_LOCKONFAULT is set, I am fine with that
instead of introducing MAP_LOCKONFAULT.  I went with the new flag
because to date, we have a one to one mapping of MAP_* to VM_* flags.

>=20
> > If this is the preferred path for mmap(), I am fine with that.=20
>=20
> > However,
> > I would like to see the new system calls that Andrew mentioned (and that
> > I am testing patches for) go in as well.=20
>=20
> mlock with flags sounds like a good step but I am not sure it will make
> sense in the future. POSIX has screwed that and I am not sure how many
> applications would use it. This ship has sailed long time ago.

I don't know either, but the code is the question, right?  I know that
we have at least one team that wants it here.

>=20
> > That way we give users the
> > ability to request VM_LOCKONFAULT for memory allocated using something
> > other than mmap.
>=20
> mmap(MAP_FAULTPOPULATE); mlock() would have the same semantic even
> without changing mlock syscall.

That is true as long as MAP_FAULTPOPULATE set a flag in the VMA(s).  It
doesn't cover the actual case I was asking about, which is how do I get
lock on fault on malloc'd memory?

> =20
> > > > This patch introduces the ability to request that pages are not
> > > > pre-faulted, but are placed on the unevictable LRU when they are fi=
nally
> > > > faulted in.
> > > >=20
> > > > To keep accounting checks out of the page fault path, users are bil=
led
> > > > for the entire mapping lock as if MAP_LOCKED was used.
> > > >=20
> > > > Signed-off-by: Eric B Munson <emunson@akamai.com>
> > > > Cc: Michal Hocko <mhocko@suse.cz>
> > > > Cc: linux-alpha@vger.kernel.org
> > > > Cc: linux-kernel@vger.kernel.org
> > > > Cc: linux-mips@linux-mips.org
> > > > Cc: linux-parisc@vger.kernel.org
> > > > Cc: linuxppc-dev@lists.ozlabs.org
> > > > Cc: sparclinux@vger.kernel.org
> > > > Cc: linux-xtensa@linux-xtensa.org
> > > > Cc: linux-mm@kvack.org
> > > > Cc: linux-arch@vger.kernel.org
> > > > Cc: linux-api@vger.kernel.org
> > > > ---
> [...]
> --=20
> Michal Hocko
> SUSE Labs

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Subject: Re: [RESEND PATCH V2 1/3] Add mmap flag to request pages are locked
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On Fri 19-06-15 12:43:33, Eric B Munson wrote:
> On Fri, 19 Jun 2015, Michal Hocko wrote:
> 
> > On Thu 18-06-15 16:30:48, Eric B Munson wrote:
> > > On Thu, 18 Jun 2015, Michal Hocko wrote:
> > [...]
> > > > Wouldn't it be much more reasonable and straightforward to have
> > > > MAP_FAULTPOPULATE as a counterpart for MAP_POPULATE which would
> > > > explicitly disallow any form of pre-faulting? It would be usable for
> > > > other usecases than with MAP_LOCKED combination.
> > > 
> > > I don't see a clear case for it being more reasonable, it is one
> > > possible way to solve the problem.
> > 
> > MAP_FAULTPOPULATE would be usable for other cases as well. E.g. fault
> > around is all or nothing feature. Either all mappings (which support
> > this) fault around or none. There is no way to tell the kernel that
> > this particular mapping shouldn't fault around. I haven't seen such a
> > request yet but we have seen requests to have a way to opt out from
> > a global policy in the past (e.g. per-process opt out from THP). So
> > I can imagine somebody will come with a request to opt out from any
> > speculative operations on the mapped area in the future.
> > 
> > > But I think it leaves us in an even
> > > more akward state WRT VMA flags.  As you noted in your fix for the
> > > mmap() man page, one can get into a state where a VMA is VM_LOCKED, but
> > > not present.  Having VM_LOCKONFAULT states that this was intentional, if
> > > we go to using MAP_FAULTPOPULATE instead of MAP_LOCKONFAULT, we no
> > > longer set VM_LOCKONFAULT (unless we want to start mapping it to the
> > > presence of two MAP_ flags).  This can make detecting the MAP_LOCKED +
> > > populate failure state harder.
> > 
> > I am not sure I understand your point here. Could you be more specific
> > how would you check for that and what for?
> 
> My thought on detecting was that someone might want to know if they had
> a VMA that was VM_LOCKED but had not been made present becuase of a
> failure in mmap.  We don't have a way today, but adding VM_LOCKONFAULT
> is at least explicit about what is happening which would make detecting
> the VM_LOCKED but not present state easier. 

One could use /proc/<pid>/pagemap to query the residency.

> This assumes that
> MAP_FAULTPOPULATE does not translate to a VMA flag, but it sounds like
> it would have to.

Yes, it would have to have a VM flag for the vma.

> > From my understanding MAP_LOCKONFAULT is essentially
> > MAP_FAULTPOPULATE|MAP_LOCKED with a quite obvious semantic (unlike
> > single MAP_LOCKED unfortunately). I would love to also have
> > MAP_LOCKED|MAP_POPULATE (aka full mlock semantic) but I am really
> > skeptical considering how my previous attempt to make MAP_POPULATE
> > reasonable went.
> 
> Are you objecting to the addition of the VMA flag VM_LOCKONFAULT, or the
> new MAP_LOCKONFAULT flag (or both)? 

I thought the MAP_FAULTPOPULATE (or any other better name) would
directly translate into VM_FAULTPOPULATE and wouldn't be tight to the
locked semantic. We already have VM_LOCKED for that. The direct effect
of the flag would be to prevent from population other than the direct
page fault - including any speculative actions like fault around or
read-ahead.

> If you prefer that MAP_LOCKED |
> MAP_FAULTPOPULATE means that VM_LOCKONFAULT is set, I am fine with that
> instead of introducing MAP_LOCKONFAULT.  I went with the new flag
> because to date, we have a one to one mapping of MAP_* to VM_* flags.
> 
> > 
> > > If this is the preferred path for mmap(), I am fine with that. 
> > 
> > > However,
> > > I would like to see the new system calls that Andrew mentioned (and that
> > > I am testing patches for) go in as well. 
> > 
> > mlock with flags sounds like a good step but I am not sure it will make
> > sense in the future. POSIX has screwed that and I am not sure how many
> > applications would use it. This ship has sailed long time ago.
> 
> I don't know either, but the code is the question, right?  I know that
> we have at least one team that wants it here.
> 
> > 
> > > That way we give users the
> > > ability to request VM_LOCKONFAULT for memory allocated using something
> > > other than mmap.
> > 
> > mmap(MAP_FAULTPOPULATE); mlock() would have the same semantic even
> > without changing mlock syscall.
> 
> That is true as long as MAP_FAULTPOPULATE set a flag in the VMA(s).  It
> doesn't cover the actual case I was asking about, which is how do I get
> lock on fault on malloc'd memory?

OK I see your point now. We would indeed need a flag argument for mlock.
-- 
Michal Hocko
SUSE Labs

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On Mon, 22 Jun 2015, Michal Hocko wrote:

> On Fri 19-06-15 12:43:33, Eric B Munson wrote:
> > On Fri, 19 Jun 2015, Michal Hocko wrote:
> >=20
> > > On Thu 18-06-15 16:30:48, Eric B Munson wrote:
> > > > On Thu, 18 Jun 2015, Michal Hocko wrote:
> > > [...]
> > > > > Wouldn't it be much more reasonable and straightforward to have
> > > > > MAP_FAULTPOPULATE as a counterpart for MAP_POPULATE which would
> > > > > explicitly disallow any form of pre-faulting? It would be usable =
for
> > > > > other usecases than with MAP_LOCKED combination.
> > > >=20
> > > > I don't see a clear case for it being more reasonable, it is one
> > > > possible way to solve the problem.
> > >=20
> > > MAP_FAULTPOPULATE would be usable for other cases as well. E.g. fault
> > > around is all or nothing feature. Either all mappings (which support
> > > this) fault around or none. There is no way to tell the kernel that
> > > this particular mapping shouldn't fault around. I haven't seen such a
> > > request yet but we have seen requests to have a way to opt out from
> > > a global policy in the past (e.g. per-process opt out from THP). So
> > > I can imagine somebody will come with a request to opt out from any
> > > speculative operations on the mapped area in the future.
> > >=20
> > > > But I think it leaves us in an even
> > > > more akward state WRT VMA flags.  As you noted in your fix for the
> > > > mmap() man page, one can get into a state where a VMA is VM_LOCKED,=
 but
> > > > not present.  Having VM_LOCKONFAULT states that this was intentiona=
l, if
> > > > we go to using MAP_FAULTPOPULATE instead of MAP_LOCKONFAULT, we no
> > > > longer set VM_LOCKONFAULT (unless we want to start mapping it to the
> > > > presence of two MAP_ flags).  This can make detecting the MAP_LOCKE=
D +
> > > > populate failure state harder.
> > >=20
> > > I am not sure I understand your point here. Could you be more specific
> > > how would you check for that and what for?
> >=20
> > My thought on detecting was that someone might want to know if they had
> > a VMA that was VM_LOCKED but had not been made present becuase of a
> > failure in mmap.  We don't have a way today, but adding VM_LOCKONFAULT
> > is at least explicit about what is happening which would make detecting
> > the VM_LOCKED but not present state easier.=20
>=20
> One could use /proc/<pid>/pagemap to query the residency.
>=20
> > This assumes that
> > MAP_FAULTPOPULATE does not translate to a VMA flag, but it sounds like
> > it would have to.
>=20
> Yes, it would have to have a VM flag for the vma.
>=20
> > > From my understanding MAP_LOCKONFAULT is essentially
> > > MAP_FAULTPOPULATE|MAP_LOCKED with a quite obvious semantic (unlike
> > > single MAP_LOCKED unfortunately). I would love to also have
> > > MAP_LOCKED|MAP_POPULATE (aka full mlock semantic) but I am really
> > > skeptical considering how my previous attempt to make MAP_POPULATE
> > > reasonable went.
> >=20
> > Are you objecting to the addition of the VMA flag VM_LOCKONFAULT, or the
> > new MAP_LOCKONFAULT flag (or both)?=20
>=20
> I thought the MAP_FAULTPOPULATE (or any other better name) would
> directly translate into VM_FAULTPOPULATE and wouldn't be tight to the
> locked semantic. We already have VM_LOCKED for that. The direct effect
> of the flag would be to prevent from population other than the direct
> page fault - including any speculative actions like fault around or
> read-ahead.

I like the ability to control other speculative population, but I am not
sure about overloading it with the VM_LOCKONFAULT case.  Here is my
concern.  If we are using VM_FAULTPOPULATE | VM_LOCKED to denote
LOCKONFAULT, how can we tell the difference between someone that wants
to avoid read-ahead and wants to use mlock()?  This might lead to some
interesting states with mlock() and munlock() that take flags.  For
instance, using VM_LOCKONFAULT mlock(MLOCK_ONFAULT) followed by
munlock(MLOCK_LOCKED) leaves the VMAs in the same state with
VM_LOCKONFAULT set.  If we use VM_FAULTPOPULATE, the same pair of calls
would clear VM_LOCKED, but leave VM_FAULTPOPULATE.  It may not matter in
the end, but I am concerned about the subtleties here.

>=20
> > If you prefer that MAP_LOCKED |
> > MAP_FAULTPOPULATE means that VM_LOCKONFAULT is set, I am fine with that
> > instead of introducing MAP_LOCKONFAULT.  I went with the new flag
> > because to date, we have a one to one mapping of MAP_* to VM_* flags.
> >=20
> > >=20
> > > > If this is the preferred path for mmap(), I am fine with that.=20
> > >=20
> > > > However,
> > > > I would like to see the new system calls that Andrew mentioned (and=
 that
> > > > I am testing patches for) go in as well.=20
> > >=20
> > > mlock with flags sounds like a good step but I am not sure it will ma=
ke
> > > sense in the future. POSIX has screwed that and I am not sure how many
> > > applications would use it. This ship has sailed long time ago.
> >=20
> > I don't know either, but the code is the question, right?  I know that
> > we have at least one team that wants it here.
> >=20
> > >=20
> > > > That way we give users the
> > > > ability to request VM_LOCKONFAULT for memory allocated using someth=
ing
> > > > other than mmap.
> > >=20
> > > mmap(MAP_FAULTPOPULATE); mlock() would have the same semantic even
> > > without changing mlock syscall.
> >=20
> > That is true as long as MAP_FAULTPOPULATE set a flag in the VMA(s).  It
> > doesn't cover the actual case I was asking about, which is how do I get
> > lock on fault on malloc'd memory?
>=20
> OK I see your point now. We would indeed need a flag argument for mlock.
> --=20
> Michal Hocko
> SUSE Labs

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Lieber Freund!!!

Ich vermute das diese E-Mail eine ?berraschung f?r Sie sein wird, aber =
es ist wahr.Ich bin bei einer routinen ?berpr?fung in meiner Bank (Stan=
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hn Million, F?nf Hundert Tausend, US Dollar)  gutgeschrieben sind.Diese=
s Konto geh?rte Herrn Manfred Becker, der ein Kunde in unsere Bank war,=
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Damit es mir m?glich ist dieses Geld $18,500,000 inanspruch zunehmen,be=
n?tige ich die zusammenarbeit eines Ausl?ndischen Partners wie Sie,den =
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From - Thu Nov 08 21:37:35 2018
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From: Vlastimil Babka <vbabka@suse.cz>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: Re: [RESEND PATCH V2 1/3] Add mmap flag to request pages are locked
 after page fault
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To: Eric B Munson <emunson@akamai.com>, Michal Hocko <mhocko@suse.cz>
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On 06/22/2015 04:18 PM, Eric B Munson wrote:
> On Mon, 22 Jun 2015, Michal Hocko wrote:
>
>> On Fri 19-06-15 12:43:33, Eric B Munson wrote:
>>> On Fri, 19 Jun 2015, Michal Hocko wrote:
>>>
>>>> On Thu 18-06-15 16:30:48, Eric B Munson wrote:
>>>>> On Thu, 18 Jun 2015, Michal Hocko wrote:
>>>> [...]
>>>>>> Wouldn't it be much more reasonable and straightforward to have
>>>>>> MAP_FAULTPOPULATE as a counterpart for MAP_POPULATE which would
>>>>>> explicitly disallow any form of pre-faulting? It would be usable for
>>>>>> other usecases than with MAP_LOCKED combination.
>>>>>
>>>>> I don't see a clear case for it being more reasonable, it is one
>>>>> possible way to solve the problem.
>>>>
>>>> MAP_FAULTPOPULATE would be usable for other cases as well. E.g. fault
>>>> around is all or nothing feature. Either all mappings (which support
>>>> this) fault around or none. There is no way to tell the kernel that
>>>> this particular mapping shouldn't fault around. I haven't seen such a
>>>> request yet but we have seen requests to have a way to opt out from
>>>> a global policy in the past (e.g. per-process opt out from THP). So
>>>> I can imagine somebody will come with a request to opt out from any
>>>> speculative operations on the mapped area in the future.

That sounds like something where new madvise() flag would make more 
sense than a new mmap flag, and conflating it with locking behavior 
would lead to all kinds of weird corner cases as Eric mentioned.

>>>>
>>>>> But I think it leaves us in an even
>>>>> more akward state WRT VMA flags.  As you noted in your fix for the
>>>>> mmap() man page, one can get into a state where a VMA is VM_LOCKED, but
>>>>> not present.  Having VM_LOCKONFAULT states that this was intentional, if
>>>>> we go to using MAP_FAULTPOPULATE instead of MAP_LOCKONFAULT, we no
>>>>> longer set VM_LOCKONFAULT (unless we want to start mapping it to the
>>>>> presence of two MAP_ flags).  This can make detecting the MAP_LOCKED +
>>>>> populate failure state harder.
>>>>
>>>> I am not sure I understand your point here. Could you be more specific
>>>> how would you check for that and what for?
>>>
>>> My thought on detecting was that someone might want to know if they had
>>> a VMA that was VM_LOCKED but had not been made present becuase of a
>>> failure in mmap.  We don't have a way today, but adding VM_LOCKONFAULT
>>> is at least explicit about what is happening which would make detecting
>>> the VM_LOCKED but not present state easier.
>>
>> One could use /proc/<pid>/pagemap to query the residency.

I think that's all too much complex scenario for a little gain. If 
someone knows that mmap(MAP_LOCKED|MAP_POPULATE) is not perfect, he 
should either mlock() separately from mmap(), or fault the range 
manually with a for loop. Why try to detect if the corner case was hit?

>>
>>> This assumes that
>>> MAP_FAULTPOPULATE does not translate to a VMA flag, but it sounds like
>>> it would have to.
>>
>> Yes, it would have to have a VM flag for the vma.

So with your approach, VM_LOCKED flag is enough, right? The new MAP_ / 
MLOCK_ flags just cause setting VM_LOCKED to not fault the whole vma, 
but otherwise nothing changes.

If that's true, I think it's better than a new vma flag.

>>
>>>>  From my understanding MAP_LOCKONFAULT is essentially
>>>> MAP_FAULTPOPULATE|MAP_LOCKED with a quite obvious semantic (unlike
>>>> single MAP_LOCKED unfortunately). I would love to also have
>>>> MAP_LOCKED|MAP_POPULATE (aka full mlock semantic) but I am really
>>>> skeptical considering how my previous attempt to make MAP_POPULATE
>>>> reasonable went.
>>>
>>> Are you objecting to the addition of the VMA flag VM_LOCKONFAULT, or the
>>> new MAP_LOCKONFAULT flag (or both)?
>>
>> I thought the MAP_FAULTPOPULATE (or any other better name) would
>> directly translate into VM_FAULTPOPULATE and wouldn't be tight to the
>> locked semantic. We already have VM_LOCKED for that. The direct effect
>> of the flag would be to prevent from population other than the direct
>> page fault - including any speculative actions like fault around or
>> read-ahead.
>
> I like the ability to control other speculative population, but I am not
> sure about overloading it with the VM_LOCKONFAULT case.  Here is my
> concern.  If we are using VM_FAULTPOPULATE | VM_LOCKED to denote
> LOCKONFAULT, how can we tell the difference between someone that wants
> to avoid read-ahead and wants to use mlock()?  This might lead to some
> interesting states with mlock() and munlock() that take flags.  For
> instance, using VM_LOCKONFAULT mlock(MLOCK_ONFAULT) followed by
> munlock(MLOCK_LOCKED) leaves the VMAs in the same state with
> VM_LOCKONFAULT set.  If we use VM_FAULTPOPULATE, the same pair of calls
> would clear VM_LOCKED, but leave VM_FAULTPOPULATE.  It may not matter in
> the end, but I am concerned about the subtleties here.

Right.

>>
>>> If you prefer that MAP_LOCKED |
>>> MAP_FAULTPOPULATE means that VM_LOCKONFAULT is set, I am fine with that
>>> instead of introducing MAP_LOCKONFAULT.  I went with the new flag
>>> because to date, we have a one to one mapping of MAP_* to VM_* flags.
>>>
>>>>
>>>>> If this is the preferred path for mmap(), I am fine with that.
>>>>
>>>>> However,
>>>>> I would like to see the new system calls that Andrew mentioned (and that
>>>>> I am testing patches for) go in as well.
>>>>
>>>> mlock with flags sounds like a good step but I am not sure it will make
>>>> sense in the future. POSIX has screwed that and I am not sure how many
>>>> applications would use it. This ship has sailed long time ago.
>>>
>>> I don't know either, but the code is the question, right?  I know that
>>> we have at least one team that wants it here.
>>>
>>>>
>>>>> That way we give users the
>>>>> ability to request VM_LOCKONFAULT for memory allocated using something
>>>>> other than mmap.
>>>>
>>>> mmap(MAP_FAULTPOPULATE); mlock() would have the same semantic even
>>>> without changing mlock syscall.
>>>
>>> That is true as long as MAP_FAULTPOPULATE set a flag in the VMA(s).  It
>>> doesn't cover the actual case I was asking about, which is how do I get
>>> lock on fault on malloc'd memory?
>>
>> OK I see your point now. We would indeed need a flag argument for mlock.
>> --
>> Michal Hocko
>> SUSE Labs

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From - Thu Nov 08 21:37:35 2018
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Path: news.gmane.org!not-for-mail
From: Vlastimil Babka <vbabka-AlSwsSmVLrQ@public.gmane.org>
Newsgroups: gmane.linux.kernel.api,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch
Subject: Re: [RESEND PATCH V2 0/3] Allow user to request memory to be locked
 on page fault
Date: Tue, 23 Jun 2015 15:04:22 +0200
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Approved: news@gmane.org
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References: <1433942810-7852-1-git-send-email-emunson@akamai.com> <20150610145929.b22be8647887ea7091b09ae1@linux-foundation.org> <5579DFBA.80809@akamai.com> <20150611123424.4bb07cffd0e5bb146cc92231@linux-foundation.org> <557ACAFC.90608@suse.cz> <20150615144356.GB12300@akamai.com>
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Cc: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
	Shuah Khan <shuahkh-JPH+aEBZ4P+UEJcrhfAQsw@public.gmane.org>,
	Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>,
	Michael Kerrisk <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
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To: Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org>
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On 06/15/2015 04:43 PM, Eric B Munson wrote:
>> Note that the semantic of MAP_LOCKED can be subtly surprising:
>>
>> "mlock(2) fails if the memory range cannot get populated to guarantee
>> that no future major faults will happen on the range.
>> mmap(MAP_LOCKED) on the other hand silently succeeds even if the
>> range was populated only
>> partially."
>>
>> ( from http://marc.info/?l=linux-mm&m=143152790412727&w=2 )
>>
>> So MAP_LOCKED can silently behave like MAP_LOCKONFAULT. While
>> MAP_LOCKONFAULT doesn't suffer from such problem, I wonder if that's
>> sufficient reason not to extend mmap by new mlock() flags that can
>> be instead applied to the VMA after mmapping, using the proposed
>> mlock2() with flags. So I think instead we could deprecate
>> MAP_LOCKED more prominently. I doubt the overhead of calling the
>> extra syscall matters here?
>
> We could talk about retiring the MAP_LOCKED flag but I suspect that
> would get significantly more pushback than adding a new mmap flag.

Oh no we can't "retire" as in remove the flag, ever. Just not continue 
the way of mmap() flags related to mlock().

> Likely that the overhead does not matter in most cases, but presumably
> there are cases where it does (as we have a MAP_LOCKED flag today).
> Even with the proposed new system calls I think we should have the
> MAP_LOCKONFAULT for parity with MAP_LOCKED.

I'm not convinced, but it's not a major issue.

>>
>>> - mlock() takes a `flags' argument.  Presently that's
>>>    MLOCK_LOCKED|MLOCK_LOCKONFAULT.
>>>
>>> - munlock() takes a `flags' arument.  MLOCK_LOCKED|MLOCK_LOCKONFAULT
>>>    to specify which flags are being cleared.
>>>
>>> - mlockall() and munlockall() ditto.
>>>
>>>
>>> IOW, LOCKED and LOCKEDONFAULT are treated identically and independently.
>>>
>>> Now, that's how we would have designed all this on day one.  And I
>>> think we can do this now, by adding new mlock2() and munlock2()
>>> syscalls.  And we may as well deprecate the old mlock() and munlock(),
>>> not that this matters much.
>>>
>>> *should* we do this?  I'm thinking "yes" - it's all pretty simple
>>> boilerplate and wrappers and such, and it gets the interface correct,
>>> and extensible.
>>
>> If the new LOCKONFAULT functionality is indeed desired (I haven't
>> still decided myself) then I agree that would be the cleanest way.
>
> Do you disagree with the use cases I have listed or do you think there
> is a better way of addressing those cases?

I'm somewhat sceptical about the security one. Are security sensitive 
buffers that large to matter? The performance one is more convincing and 
I don't see a better way, so OK.

>
>>
>>> What do others think?


From - Thu Nov 08 21:37:35 2018
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Subject: Re: [RESEND PATCH V2 1/3] Add mmap flag to request pages are locked
 after page fault
Date: Wed, 24 Jun 2015 10:50:13 +0200
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On Mon 22-06-15 10:18:06, Eric B Munson wrote:
> On Mon, 22 Jun 2015, Michal Hocko wrote:
> 
> > On Fri 19-06-15 12:43:33, Eric B Munson wrote:
[...]
> > > Are you objecting to the addition of the VMA flag VM_LOCKONFAULT, or the
> > > new MAP_LOCKONFAULT flag (or both)? 
> > 
> > I thought the MAP_FAULTPOPULATE (or any other better name) would
> > directly translate into VM_FAULTPOPULATE and wouldn't be tight to the
> > locked semantic. We already have VM_LOCKED for that. The direct effect
> > of the flag would be to prevent from population other than the direct
> > page fault - including any speculative actions like fault around or
> > read-ahead.
> 
> I like the ability to control other speculative population, but I am not
> sure about overloading it with the VM_LOCKONFAULT case.  Here is my
> concern.  If we are using VM_FAULTPOPULATE | VM_LOCKED to denote
> LOCKONFAULT, how can we tell the difference between someone that wants
> to avoid read-ahead and wants to use mlock()?

Not sure I understand. Something like?
addr = mmap(VM_FAULTPOPULATE) # To prevent speculative mappings into the vma
[...]
mlock(addr, len) # Now I want the full mlock semantic

and the later to have the full mlock semantic and populate the given
area regardless of VM_FAULTPOPULATE being set on the vma? This would
be an interesting question because mlock man page clearly states the
semantic and that is to _always_ populate or fail. So I originally
thought that it would obey VM_FAULTPOPULATE but this needs a more
thinking.

> This might lead to some
> interesting states with mlock() and munlock() that take flags.  For
> instance, using VM_LOCKONFAULT mlock(MLOCK_ONFAULT) followed by
> munlock(MLOCK_LOCKED) leaves the VMAs in the same state with
> VM_LOCKONFAULT set. 

This is really confusing. Let me try to rephrase that. So you have
mlock(addr, len, MLOCK_ONFAULT)
munlock(addr, len, MLOCK_LOCKED)

IIUC you would expect the vma still being MLOCK_ONFAULT, right? Isn't
that behavior strange and unexpected? First of all, munlock has
traditionally dropped the lock on the address range (e.g. what should
happen if you did plain old munlock(addr, len)). But even without
that. You are trying to unlock something that hasn't been locked the
same way. So I would expect -EINVAL at least, if the two modes should be
really represented by different flags.

Or did you mean the both types of lock like:
mlock(addr, len, MLOCK_ONFAULT) | mmap(MAP_LOCKONFAULT)
mlock(addr, len, MLOCK_LOCKED)
munlock(addr, len, MLOCK_LOCKED)

and that should keep MLOCK_ONFAULT?
This sounds even more weird to me because that means that the vma in
question would be locked by two different mechanisms. MLOCK_LOCKED with
the "always populate" semantic would rule out MLOCK_ONFAULT so what
would be the meaning of the other flag then? Also what should regular
munlock(addr, len) without flags unlock? Both?

> If we use VM_FAULTPOPULATE, the same pair of calls
> would clear VM_LOCKED, but leave VM_FAULTPOPULATE.  It may not matter in
> the end, but I am concerned about the subtleties here.

This sounds like the proper behavior to me. munlock should simply always
drop VM_LOCKED and the VM_FAULTPOPULATE can live its separate life.

Btw. could you be more specific about semantic of m{un}lock(addr, len, flags)
you want to propose? The more I think about that the more I am unclear
about it, especially munlock behavior and possible flags.
-- 
Michal Hocko
SUSE Labs

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From - Thu Nov 08 21:37:35 2018
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Subject: Re: [RESEND PATCH V2 1/3] Add mmap flag to request pages are locked
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Date: Wed, 24 Jun 2015 11:47:42 +0200
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To: Vlastimil Babka <vbabka-AlSwsSmVLrQ@public.gmane.org>
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On Tue 23-06-15 14:45:17, Vlastimil Babka wrote:
> On 06/22/2015 04:18 PM, Eric B Munson wrote:
> >On Mon, 22 Jun 2015, Michal Hocko wrote:
> >
> >>On Fri 19-06-15 12:43:33, Eric B Munson wrote:
[...]
> >>>My thought on detecting was that someone might want to know if they had
> >>>a VMA that was VM_LOCKED but had not been made present becuase of a
> >>>failure in mmap.  We don't have a way today, but adding VM_LOCKONFAULT
> >>>is at least explicit about what is happening which would make detecting
> >>>the VM_LOCKED but not present state easier.
> >>
> >>One could use /proc/<pid>/pagemap to query the residency.
> 
> I think that's all too much complex scenario for a little gain. If someone
> knows that mmap(MAP_LOCKED|MAP_POPULATE) is not perfect, he should either
> mlock() separately from mmap(), or fault the range manually with a for loop.
> Why try to detect if the corner case was hit?

No idea. I have just offered a way to do that. I do not think it is
anyhow useful but who knows... I do agree that the mlock should be used
for the full mlock semantic.

> >>>This assumes that
> >>>MAP_FAULTPOPULATE does not translate to a VMA flag, but it sounds like
> >>>it would have to.
> >>
> >>Yes, it would have to have a VM flag for the vma.
> 
> So with your approach, VM_LOCKED flag is enough, right? The new MAP_ /
> MLOCK_ flags just cause setting VM_LOCKED to not fault the whole vma, but
> otherwise nothing changes.

VM_FAULTPOPULATE would have to be sticky to prevent from other
speculative poppulation of the mapping. I mean, is it OK to have a new
mlock semantic (on fault) which might still populate&lock memory which
hasn't been faulted directly? Who knows what kind of speculative things
we will do in the future and then find out that the semantic of
lock-on-fault is not usable anymore.

[...]

-- 
Michal Hocko
SUSE Labs

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Subject: Re: [RESEND PATCH V2 0/3] Allow user to request memory to be locked
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On Tue, 23 Jun 2015, Vlastimil Babka wrote:

> On 06/15/2015 04:43 PM, Eric B Munson wrote:
> >>Note that the semantic of MAP_LOCKED can be subtly surprising:
> >>
> >>"mlock(2) fails if the memory range cannot get populated to guarantee
> >>that no future major faults will happen on the range.
> >>mmap(MAP_LOCKED) on the other hand silently succeeds even if the
> >>range was populated only
> >>partially."
> >>
> >>( from http://marc.info/?l=3Dlinux-mm&m=3D143152790412727&w=3D2 )
> >>
> >>So MAP_LOCKED can silently behave like MAP_LOCKONFAULT. While
> >>MAP_LOCKONFAULT doesn't suffer from such problem, I wonder if that's
> >>sufficient reason not to extend mmap by new mlock() flags that can
> >>be instead applied to the VMA after mmapping, using the proposed
> >>mlock2() with flags. So I think instead we could deprecate
> >>MAP_LOCKED more prominently. I doubt the overhead of calling the
> >>extra syscall matters here?
> >
> >We could talk about retiring the MAP_LOCKED flag but I suspect that
> >would get significantly more pushback than adding a new mmap flag.
>=20
> Oh no we can't "retire" as in remove the flag, ever. Just not
> continue the way of mmap() flags related to mlock().
>=20
> >Likely that the overhead does not matter in most cases, but presumably
> >there are cases where it does (as we have a MAP_LOCKED flag today).
> >Even with the proposed new system calls I think we should have the
> >MAP_LOCKONFAULT for parity with MAP_LOCKED.
>=20
> I'm not convinced, but it's not a major issue.
>=20
> >>
> >>>- mlock() takes a `flags' argument.  Presently that's
> >>>   MLOCK_LOCKED|MLOCK_LOCKONFAULT.
> >>>
> >>>- munlock() takes a `flags' arument.  MLOCK_LOCKED|MLOCK_LOCKONFAULT
> >>>   to specify which flags are being cleared.
> >>>
> >>>- mlockall() and munlockall() ditto.
> >>>
> >>>
> >>>IOW, LOCKED and LOCKEDONFAULT are treated identically and independentl=
y.
> >>>
> >>>Now, that's how we would have designed all this on day one.  And I
> >>>think we can do this now, by adding new mlock2() and munlock2()
> >>>syscalls.  And we may as well deprecate the old mlock() and munlock(),
> >>>not that this matters much.
> >>>
> >>>*should* we do this?  I'm thinking "yes" - it's all pretty simple
> >>>boilerplate and wrappers and such, and it gets the interface correct,
> >>>and extensible.
> >>
> >>If the new LOCKONFAULT functionality is indeed desired (I haven't
> >>still decided myself) then I agree that would be the cleanest way.
> >
> >Do you disagree with the use cases I have listed or do you think there
> >is a better way of addressing those cases?
>=20
> I'm somewhat sceptical about the security one. Are security
> sensitive buffers that large to matter? The performance one is more
> convincing and I don't see a better way, so OK.

They can be, the two that come to mind are medical images and high
resolution sensor data.

>=20
> >
> >>
> >>>What do others think?
>=20

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Subject: Re: [RESEND PATCH V2 0/3] Allow user to request memory to be locked
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On Thu, Jun 25, 2015 at 7:16 AM, Eric B Munson <emunson@akamai.com> wrote:
> On Tue, 23 Jun 2015, Vlastimil Babka wrote:
>
>> On 06/15/2015 04:43 PM, Eric B Munson wrote:
>> >>
>> >>If the new LOCKONFAULT functionality is indeed desired (I haven't
>> >>still decided myself) then I agree that would be the cleanest way.
>> >
>> >Do you disagree with the use cases I have listed or do you think there
>> >is a better way of addressing those cases?
>>
>> I'm somewhat sceptical about the security one. Are security
>> sensitive buffers that large to matter? The performance one is more
>> convincing and I don't see a better way, so OK.
>
> They can be, the two that come to mind are medical images and high
> resolution sensor data.

I think we've been handling sensitive memory pages wrong forever.  We
shouldn't lock them into memory; we should flag them as sensitive and
encrypt them if they're ever written out to disk.

--Andy

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From - Thu Nov 08 21:37:35 2018
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On Wed, 24 Jun 2015, Michal Hocko wrote:

> On Mon 22-06-15 10:18:06, Eric B Munson wrote:
> > On Mon, 22 Jun 2015, Michal Hocko wrote:
> >=20
> > > On Fri 19-06-15 12:43:33, Eric B Munson wrote:
> [...]
> > > > Are you objecting to the addition of the VMA flag VM_LOCKONFAULT, o=
r the
> > > > new MAP_LOCKONFAULT flag (or both)?=20
> > >=20
> > > I thought the MAP_FAULTPOPULATE (or any other better name) would
> > > directly translate into VM_FAULTPOPULATE and wouldn't be tight to the
> > > locked semantic. We already have VM_LOCKED for that. The direct effect
> > > of the flag would be to prevent from population other than the direct
> > > page fault - including any speculative actions like fault around or
> > > read-ahead.
> >=20
> > I like the ability to control other speculative population, but I am not
> > sure about overloading it with the VM_LOCKONFAULT case.  Here is my
> > concern.  If we are using VM_FAULTPOPULATE | VM_LOCKED to denote
> > LOCKONFAULT, how can we tell the difference between someone that wants
> > to avoid read-ahead and wants to use mlock()?
>=20
> Not sure I understand. Something like?
> addr =3D mmap(VM_FAULTPOPULATE) # To prevent speculative mappings into th=
e vma
> [...]
> mlock(addr, len) # Now I want the full mlock semantic

So this leaves us without the LOCKONFAULT semantics?  That is not at all
what I am looking for.  What I want is a way to express 3 possible
states of a VMA WRT locking, locked (populated and all pages on the
unevictable LRU), lock on fault (populated by page fault, pages that are
present are on the unevictable LRU, newly faulted pages are added to
same), and not locked.

>=20
> and the later to have the full mlock semantic and populate the given
> area regardless of VM_FAULTPOPULATE being set on the vma? This would
> be an interesting question because mlock man page clearly states the
> semantic and that is to _always_ populate or fail. So I originally
> thought that it would obey VM_FAULTPOPULATE but this needs a more
> thinking.
>=20
> > This might lead to some
> > interesting states with mlock() and munlock() that take flags.  For
> > instance, using VM_LOCKONFAULT mlock(MLOCK_ONFAULT) followed by
> > munlock(MLOCK_LOCKED) leaves the VMAs in the same state with
> > VM_LOCKONFAULT set.=20
>=20
> This is really confusing. Let me try to rephrase that. So you have
> mlock(addr, len, MLOCK_ONFAULT)
> munlock(addr, len, MLOCK_LOCKED)
>=20
> IIUC you would expect the vma still being MLOCK_ONFAULT, right? Isn't
> that behavior strange and unexpected? First of all, munlock has
> traditionally dropped the lock on the address range (e.g. what should
> happen if you did plain old munlock(addr, len)). But even without
> that. You are trying to unlock something that hasn't been locked the
> same way. So I would expect -EINVAL at least, if the two modes should be
> really represented by different flags.

I would expect it to remain MLOCK_LOCKONFAULT because the user requested
munlock(addr, len, MLOCK_LOCKED).  It is not currently an error to
unlock memory that is not locked.  We do this because we do not require
the user track what areas are locked.  It is acceptable to have a mostly
locked area with holes unlocked with a single call to munlock that spans
the entire area.  The same semantics should hold for munlock with flags.
If I have an area with MLOCK_LOCKED and MLOCK_ONFAULT interleaved, it
should be acceptable to clear the MLOCK_ONFAULT flag from those areas
with a single munlock call that spans the area.

On top of continuing with munlock semantics, the implementation would
need the ability to rollback an munlock call if it failed after altering
VMAs.  If we have the same interleaved area as before and we go to
return -EINVAL the first time we hit an area that was MLOCK_LOCKED, how
do we restore the state of the VMAs we have already processed, and
possibly merged/split?
>=20
> Or did you mean the both types of lock like:
> mlock(addr, len, MLOCK_ONFAULT) | mmap(MAP_LOCKONFAULT)
> mlock(addr, len, MLOCK_LOCKED)
> munlock(addr, len, MLOCK_LOCKED)
>=20
> and that should keep MLOCK_ONFAULT?
> This sounds even more weird to me because that means that the vma in
> question would be locked by two different mechanisms. MLOCK_LOCKED with
> the "always populate" semantic would rule out MLOCK_ONFAULT so what
> would be the meaning of the other flag then? Also what should regular
> munlock(addr, len) without flags unlock? Both?

This is indeed confusing and not what I was trying to illustrate, but
since you bring it up.  mlockall() currently clears all flags and then
sets the new flags with each subsequent call.  mlock2 would use that
same behavior, if LOCKED was specified for a ONFAULT region, that region
would become LOCKED and vice versa.

I have the new system call set ready, I am waiting to post for rc1 so I
can run the benchmarks again on a base more stable than the middle of a
merge window.  We should wait to hash out implementations until the code
is up rather than talk past eachother here.

>=20
> > If we use VM_FAULTPOPULATE, the same pair of calls
> > would clear VM_LOCKED, but leave VM_FAULTPOPULATE.  It may not matter in
> > the end, but I am concerned about the subtleties here.
>=20
> This sounds like the proper behavior to me. munlock should simply always
> drop VM_LOCKED and the VM_FAULTPOPULATE can live its separate life.
>=20
> Btw. could you be more specific about semantic of m{un}lock(addr, len, fl=
ags)
> you want to propose? The more I think about that the more I am unclear
> about it, especially munlock behavior and possible flags.
> --=20
> Michal Hocko
> SUSE Labs

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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH][RFC] parisc: Fix some PTE/TLB race conditions and optimize __flush_tlb_range based on timing results
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	James Bottomley <James.Bottomley@HansenPartnership.com>
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This patch is an evolution of the change posted by Helge based on buildd =
testing.

The increased use of pdtlb/pitlb instructions seemed to increase the =
frequency of random segmentation
faults building packages.  Further, we had a number of cases where TLB =
inserts would repeatedly fail and
all forward progress would stop.  The Haskell ghc package caused a lot =
of trouble in this area.  The final
indication of a race in pte handling was this syslog entry on sibaris:

[63165.884000] swap_free: Unused swap offset entry 00000004
[63165.948000] BUG: Bad page map in process mysqld  pte:00000100 =
pmd:019bbec5
[63166.028000] addr:00000000ec464000 vm_flags:00100073 =
anon_vma:0000000221023828 mapping:          (null) index:ec464
[63166.156000] CPU: 1 PID: 9176 Comm: mysqld Not tainted =
4.0.0-2-parisc64-smp #1 Debian 4.0.5-1
[63166.256000] Backtrace:
[63166.284000]  [<0000000040173eb0>] show_stack+0x20/0x38
[63166.344000]  [<0000000040444424>] dump_stack+0x9c/0x110
[63166.408000]  [<00000000402a0d38>] print_bad_pte+0x1a8/0x278
[63166.476000]  [<00000000402a28b8>] unmap_single_vma+0x3d8/0x770
[63166.544000]  [<00000000402a4090>] zap_page_range+0xf0/0x198
[63166.612000]  [<00000000402ba2a4>] SyS_madvise+0x404/0x8c0

Note that the pte value is 0 except for the accessed bit 0x100.  This =
bit shouldn't be set without the
present bit.

It should be noted that the madvise system call is probably a trigger =
for many of the random segmentation
faults.

In looking at the kernel code, I found the following problems:

1) The pte_clear define didn't take TLB lock when clearing a pte.
2) We didn't test pte present bit inside lock in exception support.
3) The pte and tlb locks needed to merged in order to ensure consistency =
between page table and TLB.
This also has the effect of serializing TLB broadcasts on SMP systems.

The attached change implements the above and a few other tweaks to try =
to improve performance.  Based
on the timing code, TLB purges are very slow (e.g., ~ 209 cycles per =
page on rp3440).  Thus, I think it
beneficial to test the split_tlb variable to avoid duplicate purges.  =
Probably, all PA 2.0 machines have
combined TLBs.

I dropped using __flush_tlb_range in flush_tlb_mm as I realized all =
applications and most threads have
a stack size that is too large to make this useful.  I added some =
comments to this effect.

Since implementing 1 through 3, I haven't had any random segmentation =
faults on mx3210 (rp3440) in
about one week of building code and running as  a Debian buildd.

Signed-off-by: John David Anglin <dave.anglin@bell.net>

On 2015-05-29, at 4:34 PM, Helge Deller wrote:

> On 29.05.2015 22:13, Helge Deller wrote:
>> This patch optimizes the TLB flushing functions flush_tlb_mm() and
>> __flush_tlb_range() in a way that it adds timing routines to =
calculate
>> the optimal size up to which flushes of small TLB ranges perform =
faster
>> than when performing a full TLB shootdown.
>>=20
>> Here are some timing results for a rp5470 and J5000 machine:
>>=20
>> Machine: rp5470, PA8700, 875 MHz
>> I-cache         : 768 KB
>> D-cache         : 1536 KB (WB, direct mapped)
>> ITLB entries    : 240
>> DTLB entries    : 240 - shared with ITLB
>>=20
>> Whole cache flush 692084 cycles, flushing 13214592 bytes 5904392 =
cycles
>> Setting cache flush threshold to 1512 kB.
>> Whole TLB flush 40990 cycles, flushing 4096000 bytes 448989 cycles
>> Setting TLB flush threshold to 368 kB.
>>=20
>> Machine: J5000/785, PA8500, 440MHz
>> I-cache         : 512 KB
>> D-cache         : 1024 KB (WB, direct mapped)
>> ITLB entries    : 160
>> DTLB entries    : 160 - shared with ITLB
>>=20
>> Whole cache flush 268605 cycles, flushing 13214592 bytes 1861037 =
cycles
>> Setting cache flush threshold to 1024 kB
>> Whole TLB flush 14131 cycles, flushing 13221888 bytes 769329 cycles
>> Setting TLB flush threshold to 240 kB
>=20
>=20
> One more machine:
> Machine: C8000, PA8800, 2 CPUs each 900 MHz
> I-cache         : 32768 KB
> D-cache         : 32768 KB (WB, direct mapped)
> ITLB entries    : 240
> DTLB entries    : 240 - shared with ITLB
>=20
> Whole cache flush 4298354 cycles, flushing 13214592 bytes 1440513 =
cycles
> Setting cache flush threshold to 32768 kB
> Whole TLB flush 15625 cycles, flushing 13221888 bytes 781230 cycles
> Setting TLB flush threshold to 260 kB
>=20
>=20
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>=20
>> diff --git a/arch/parisc/include/asm/tlbflush.h =
b/arch/parisc/include/asm/tlbflush.h
>> index 9d086a5..5e81e17 100644
>> --- a/arch/parisc/include/asm/tlbflush.h
>> +++ b/arch/parisc/include/asm/tlbflush.h
>> @@ -24,40 +24,25 @@ extern void flush_tlb_all_local(void *);
>>=20
>>  #define smp_flush_tlb_all()	flush_tlb_all()
>>=20
>> -/*
>> - * flush_tlb_mm()
>> - *
>> - * XXX This code is NOT valid for HP-UX compatibility processes,
>> - * (although it will probably work 99% of the time). HP-UX
>> - * processes are free to play with the space id's and save them
>> - * over long periods of time, etc. so we have to preserve the
>> - * space and just flush the entire tlb. We need to check the
>> - * personality in order to do that, but the personality is not
>> - * currently being set correctly.
>> - *
>> - * Of course, Linux processes could do the same thing, but
>> - * we don't support that (and the compilers, dynamic linker,
>> - * etc. do not do that).
>> - */
>> +int __flush_tlb_range(unsigned long sid,
>> +	unsigned long start, unsigned long end);
>> +
>> +#define flush_tlb_range(vma, start, end) \
>> +	__flush_tlb_range((vma)->vm_mm->context, start, end)
>> +
>> +#define flush_tlb_kernel_range(start, end) \
>> +	__flush_tlb_range(0, start, end)
>>=20
>>  static inline void flush_tlb_mm(struct mm_struct *mm)
>>  {
>> -	BUG_ON(mm =3D=3D &init_mm); /* Should never happen */
>> -
>> -#if 1 || defined(CONFIG_SMP)
>> -	flush_tlb_all();
>> -#else
>> -	/* FIXME: currently broken, causing space id and protection ids
>> -	 *  to go out of sync, resulting in faults on userspace =
accesses.
>> -	 */
>> -	if (mm) {
>> -		if (mm->context !=3D 0)
>> -			free_sid(mm->context);
>> -		mm->context =3D alloc_sid();
>> -		if (mm =3D=3D current->active_mm)
>> -			load_context(mm->context);
>> +	struct vm_area_struct *vma;
>> +
>> +	for (vma =3D mm->mmap; vma; vma =3D vma->vm_next) {
>> +		/* exit loop if flush_tlb_all() was called. */
>> +		if (unlikely(__flush_tlb_range(mm->context,
>> +				vma->vm_start, vma->vm_end)))
>> +			return;
>>  	}
>> -#endif
>>  }
>>=20
>>  static inline void flush_tlb_page(struct vm_area_struct *vma,
>> @@ -76,11 +61,4 @@ static inline void flush_tlb_page(struct =
vm_area_struct *vma,
>>  	purge_tlb_end(flags);
>>  }
>>=20
>> -void __flush_tlb_range(unsigned long sid,
>> -	unsigned long start, unsigned long end);
>> -
>> -#define flush_tlb_range(vma,start,end) =
__flush_tlb_range((vma)->vm_mm->context,start,end)
>> -
>> -#define flush_tlb_kernel_range(start, end) =
__flush_tlb_range(0,start,end)
>> -
>>  #endif
>> diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
>> index f6448c7..4eac923 100644
>> --- a/arch/parisc/kernel/cache.c
>> +++ b/arch/parisc/kernel/cache.c
>> @@ -342,12 +342,15 @@ EXPORT_SYMBOL(flush_data_cache_local);
>>  EXPORT_SYMBOL(flush_kernel_icache_range_asm);
>>=20
>>  #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
>> -int parisc_cache_flush_threshold __read_mostly =3D FLUSH_THRESHOLD;
>> +static unsigned long parisc_cache_flush_threshold __read_mostly =3D =
FLUSH_THRESHOLD;
>> +
>> +#define FLUSH_TLB_THRESHOLD (2*1024*1024) /* 2MB initial TLB =
threshold */
>> +static unsigned long parisc_tlb_flush_threshold __read_mostly =3D =
FLUSH_TLB_THRESHOLD;
>>=20
>>  void __init parisc_setup_cache_timing(void)
>>  {
>>  	unsigned long rangetime, alltime;
>> -	unsigned long size;
>> +	unsigned long size, start;
>>=20
>>  	alltime =3D mfctl(16);
>>  	flush_data_cache();
>> @@ -364,14 +367,42 @@ void __init parisc_setup_cache_timing(void)
>>  	/* Racy, but if we see an intermediate value, it's ok too... */
>>  	parisc_cache_flush_threshold =3D size * alltime / rangetime;
>>=20
>> -	parisc_cache_flush_threshold =3D (parisc_cache_flush_threshold + =
L1_CACHE_BYTES - 1) &~ (L1_CACHE_BYTES - 1);
>> +	parisc_cache_flush_threshold =3D =
L1_CACHE_ALIGN(parisc_cache_flush_threshold);
>>  	if (!parisc_cache_flush_threshold)
>>  		parisc_cache_flush_threshold =3D FLUSH_THRESHOLD;
>>=20
>>  	if (parisc_cache_flush_threshold > cache_info.dc_size)
>>  		parisc_cache_flush_threshold =3D cache_info.dc_size;
>>=20
>> -	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs =
online)\n", parisc_cache_flush_threshold, num_online_cpus());
>> +	printk(KERN_INFO "Setting cache flush threshold to %lu kB\n",
>> +		parisc_cache_flush_threshold/1024);
>> +
>> +	/* calculate TLB flush threshold */
>> +
>> +	alltime =3D mfctl(16);
>> +	flush_tlb_all();
>> +	alltime =3D mfctl(16) - alltime;
>> +
>> +	size =3D PAGE_SIZE;
>> +	start =3D (unsigned long) _text;
>> +	rangetime =3D mfctl(16);
>> +	while (start < (unsigned long) _end) {
>> +		flush_tlb_kernel_range(start, start + PAGE_SIZE);
>> +		start +=3D PAGE_SIZE;
>> +		size +=3D PAGE_SIZE;
>> +	}
>> +	rangetime =3D mfctl(16) - rangetime;
>> +
>> +	printk(KERN_DEBUG "Whole TLB flush %lu cycles, flushing %lu =
bytes %lu cycles\n",
>> +		alltime, size, rangetime);
>> +
>> +	parisc_tlb_flush_threshold =3D size * alltime / rangetime;
>> +	parisc_tlb_flush_threshold =3D =
PAGE_ALIGN(parisc_tlb_flush_threshold);
>> +	if (!parisc_tlb_flush_threshold)
>> +		parisc_tlb_flush_threshold =3D FLUSH_TLB_THRESHOLD;
>> +
>> +	printk(KERN_INFO "Setting TLB flush threshold to %lu kB\n",
>> +		parisc_tlb_flush_threshold/1024);
>>  }
>>=20
>>  extern void purge_kernel_dcache_page_asm(unsigned long);
>> @@ -418,32 +449,39 @@ void purge_tlb_entries(struct mm_struct *mm, =
unsigned long addr)
>>  }
>>  EXPORT_SYMBOL(purge_tlb_entries);
>>=20
>> -void __flush_tlb_range(unsigned long sid, unsigned long start,
>> +/* __flush_tlb_range()
>> + *
>> + * returns 1 if all TLBs were flushed.
>> + */
>> +int __flush_tlb_range(unsigned long sid, unsigned long start,
>>  		       unsigned long end)
>>  {
>> -	unsigned long npages;
>> +	unsigned long size;
>>=20
>> -	npages =3D ((end - (start & PAGE_MASK)) + (PAGE_SIZE - 1)) >> =
PAGE_SHIFT;
>> -	if (npages >=3D 512)  /* 2MB of space: arbitrary, should be =
tuned */
>> +	size =3D (end - start);
>> +	if (size >=3D parisc_tlb_flush_threshold) {
>>  		flush_tlb_all();
>> +		return 1;
>> +	}
>>  	else {
>>  		unsigned long flags;
>>=20
>>  		purge_tlb_start(flags);
>>  		mtsp(sid, 1);
>>  		if (split_tlb) {
>> - 	 		while (npages--) {
>> +			while (start < end) {
>>  				pdtlb(start);
>>  				pitlb(start);
>>  				start +=3D PAGE_SIZE;
>>  			}
>>  		} else {
>> -			while (npages--) {
>> +			while (start < end) {
>>  				pdtlb(start);
>>  				start +=3D PAGE_SIZE;
>>  			}
>>  		}
>>  		purge_tlb_end(flags);
>> +		return 0;
>>  	}
>>  }
>>=20
>>=20
>=20
>=20




--Apple-Mail-81-64300394
Content-Disposition: attachment; filename="linux-4.1.1-20150701.d.txt"
Content-Type: text/plain; name="linux-4.1.1-20150701.d.txt"
Content-Transfer-Encoding: quoted-printable

diff --git a/arch/parisc/include/asm/pgtable.h =
b/arch/parisc/include/asm/pgtable.h
index 0a18375..0656235 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -16,7 +16,7 @@
 #include <asm/processor.h>
 #include <asm/cache.h>
=20
-extern spinlock_t pa_dbit_lock;
+extern spinlock_t pa_tlb_lock;
=20
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
@@ -33,6 +33,19 @@ extern spinlock_t pa_dbit_lock;
  */
 #define kern_addr_valid(addr)	(1)
=20
+/* Purge data and instruction TLB entries.  Must be called holding
+ * the pa_tlb_lock.  The TLB purge instructions are slow on SMP
+ * machines since the purge must be broadcast to all CPUs.
+ */
+
+static inline void purge_tlb_entries(struct mm_struct *mm, unsigned =
long addr)
+{
+	mtsp(mm->context, 1);
+	pdtlb(addr);
+	if (unlikely(split_tlb))
+		pitlb(addr);
+}
+
 /* Certain architectures need to do special things when PTEs
  * within a page table are directly modified.  Thus, the following
  * hook is made available.
@@ -42,15 +55,20 @@ extern spinlock_t pa_dbit_lock;
                 *(pteptr) =3D (pteval);                           \
         } while(0)
=20
-extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+#define pte_inserted(x)						=
\
+	((pte_val(x) & (_PAGE_PRESENT|_PAGE_ACCESSED))		\
+	 =3D=3D (_PAGE_PRESENT|_PAGE_ACCESSED))
=20
-#define set_pte_at(mm, addr, ptep, pteval)                      \
-	do {                                                    \
+#define set_pte_at(mm, addr, ptep, pteval)			\
+	do {							\
+		pte_t old_pte;					\
 		unsigned long flags;				\
-		spin_lock_irqsave(&pa_dbit_lock, flags);	\
-		set_pte(ptep, pteval);                          \
-		purge_tlb_entries(mm, addr);                    \
-		spin_unlock_irqrestore(&pa_dbit_lock, flags);	\
+		spin_lock_irqsave(&pa_tlb_lock, flags);		\
+		old_pte =3D *ptep;				\
+		set_pte(ptep, pteval);				\
+		if (pte_inserted(old_pte))			\
+			purge_tlb_entries(mm, addr);		\
+		spin_unlock_irqrestore(&pa_tlb_lock, flags);	\
 	} while (0)
=20
 #endif /* !__ASSEMBLY__ */
@@ -268,7 +286,7 @@ extern unsigned long *empty_zero_page;
=20
 #define pte_none(x)     (pte_val(x) =3D=3D 0)
 #define pte_present(x)	(pte_val(x) & _PAGE_PRESENT)
-#define pte_clear(mm,addr,xp)	do { pte_val(*(xp)) =3D 0; } while (0)
+#define pte_clear(mm,addr,xp)	set_pte_at(mm, addr, xp, __pte(0))
=20
 #define pmd_flag(x)	(pmd_val(x) & PxD_FLAG_MASK)
 #define pmd_address(x)	((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << =
PxD_VALUE_SHIFT)
@@ -435,15 +453,15 @@ static inline int ptep_test_and_clear_young(struct =
vm_area_struct *vma, unsigned
 	if (!pte_young(*ptep))
 		return 0;
=20
-	spin_lock_irqsave(&pa_dbit_lock, flags);
+	spin_lock_irqsave(&pa_tlb_lock, flags);
 	pte =3D *ptep;
 	if (!pte_young(pte)) {
-		spin_unlock_irqrestore(&pa_dbit_lock, flags);
+		spin_unlock_irqrestore(&pa_tlb_lock, flags);
 		return 0;
 	}
 	set_pte(ptep, pte_mkold(pte));
 	purge_tlb_entries(vma->vm_mm, addr);
-	spin_unlock_irqrestore(&pa_dbit_lock, flags);
+	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 	return 1;
 }
=20
@@ -453,11 +471,12 @@ static inline pte_t ptep_get_and_clear(struct =
mm_struct *mm, unsigned long addr,
 	pte_t old_pte;
 	unsigned long flags;
=20
-	spin_lock_irqsave(&pa_dbit_lock, flags);
+	spin_lock_irqsave(&pa_tlb_lock, flags);
 	old_pte =3D *ptep;
-	pte_clear(mm,addr,ptep);
-	purge_tlb_entries(mm, addr);
-	spin_unlock_irqrestore(&pa_dbit_lock, flags);
+	set_pte(ptep, __pte(0));
+	if (pte_inserted(old_pte))
+		purge_tlb_entries(mm, addr);
+	spin_unlock_irqrestore(&pa_tlb_lock, flags);
=20
 	return old_pte;
 }
@@ -465,10 +484,10 @@ static inline pte_t ptep_get_and_clear(struct =
mm_struct *mm, unsigned long addr,
 static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned =
long addr, pte_t *ptep)
 {
 	unsigned long flags;
-	spin_lock_irqsave(&pa_dbit_lock, flags);
+	spin_lock_irqsave(&pa_tlb_lock, flags);
 	set_pte(ptep, pte_wrprotect(*ptep));
 	purge_tlb_entries(mm, addr);
-	spin_unlock_irqrestore(&pa_dbit_lock, flags);
+	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 }
=20
 #define pte_same(A,B)	(pte_val(A) =3D=3D pte_val(B))
diff --git a/arch/parisc/include/asm/tlbflush.h =
b/arch/parisc/include/asm/tlbflush.h
index 9d086a5..e84b964 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -13,6 +13,9 @@
  * active at any one time on the Merced bus.  This tlb purge
  * synchronisation is fairly lightweight and harmless so we activate
  * it on all systems not just the N class.
+
+ * It is also used to ensure PTE updates are atomic and consistent
+ * with the TLB.
  */
 extern spinlock_t pa_tlb_lock;
=20
@@ -24,20 +27,24 @@ extern void flush_tlb_all_local(void *);
=20
 #define smp_flush_tlb_all()	flush_tlb_all()
=20
+int __flush_tlb_range(unsigned long sid,
+	unsigned long start, unsigned long end);
+
+#define flush_tlb_range(vma, start, end) \
+	__flush_tlb_range((vma)->vm_mm->context, start, end)
+
+#define flush_tlb_kernel_range(start, end) \
+	__flush_tlb_range(0, start, end)
+
 /*
  * flush_tlb_mm()
  *
- * XXX This code is NOT valid for HP-UX compatibility processes,
- * (although it will probably work 99% of the time). HP-UX
- * processes are free to play with the space id's and save them
- * over long periods of time, etc. so we have to preserve the
- * space and just flush the entire tlb. We need to check the
- * personality in order to do that, but the personality is not
- * currently being set correctly.
- *
- * Of course, Linux processes could do the same thing, but
- * we don't support that (and the compilers, dynamic linker,
- * etc. do not do that).
+ * The code to switch to a new context is NOT valid for processes
+ * which play with the space id's.  Thus, we have to preserve the
+ * space and just flush the entire tlb.  However, the compilers,
+ * dynamic linker, etc, do not manipulate space id's, so there
+ * could be a significant performance benefit in switching contexts
+ * and not flushing the whole tlb.
  */
=20
 static inline void flush_tlb_mm(struct mm_struct *mm)
@@ -45,10 +52,18 @@ static inline void flush_tlb_mm(struct mm_struct =
*mm)
 	BUG_ON(mm =3D=3D &init_mm); /* Should never happen */
=20
 #if 1 || defined(CONFIG_SMP)
+	/* Except for very small threads, flushing the whole TLB is
+	 * faster than using __flush_tlb_range.  The pdtlb and pitlb
+	 * instructions are very slow because of the TLB broadcast.
+	 * It might be faster to do local range flushes on all CPUs
+	 * on PA 2.0 systems.
+	 */
 	flush_tlb_all();
 #else
 	/* FIXME: currently broken, causing space id and protection ids
-	 *  to go out of sync, resulting in faults on userspace =
accesses.
+	 * to go out of sync, resulting in faults on userspace accesses.
+	 * This approach needs further investigation since running many
+	 * small applications (e.g., GCC testsuite) is faster on HP-UX.
 	 */
 	if (mm) {
 		if (mm->context !=3D 0)
@@ -65,22 +80,12 @@ static inline void flush_tlb_page(struct =
vm_area_struct *vma,
 {
 	unsigned long flags, sid;
=20
-	/* For one page, it's not worth testing the split_tlb variable =
*/
-
-	mb();
 	sid =3D vma->vm_mm->context;
 	purge_tlb_start(flags);
 	mtsp(sid, 1);
 	pdtlb(addr);
-	pitlb(addr);
+	if (unlikely(split_tlb))
+		pitlb(addr);
 	purge_tlb_end(flags);
 }
-
-void __flush_tlb_range(unsigned long sid,
-	unsigned long start, unsigned long end);
-
-#define flush_tlb_range(vma,start,end) =
__flush_tlb_range((vma)->vm_mm->context,start,end)
-
-#define flush_tlb_kernel_range(start, end) =
__flush_tlb_range(0,start,end)
-
 #endif
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index f6448c7..cda6dbb 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -342,12 +342,15 @@ EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
=20
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
-int parisc_cache_flush_threshold __read_mostly =3D FLUSH_THRESHOLD;
+static unsigned long parisc_cache_flush_threshold __read_mostly =3D =
FLUSH_THRESHOLD;
+
+#define FLUSH_TLB_THRESHOLD (2*1024*1024) /* 2MB initial TLB threshold =
*/
+static unsigned long parisc_tlb_flush_threshold __read_mostly =3D =
FLUSH_TLB_THRESHOLD;
=20
 void __init parisc_setup_cache_timing(void)
 {
 	unsigned long rangetime, alltime;
-	unsigned long size;
+	unsigned long size, start;
=20
 	alltime =3D mfctl(16);
 	flush_data_cache();
@@ -364,14 +367,43 @@ void __init parisc_setup_cache_timing(void)
 	/* Racy, but if we see an intermediate value, it's ok too... */
 	parisc_cache_flush_threshold =3D size * alltime / rangetime;
=20
-	parisc_cache_flush_threshold =3D (parisc_cache_flush_threshold + =
L1_CACHE_BYTES - 1) &~ (L1_CACHE_BYTES - 1);=20
+	parisc_cache_flush_threshold =3D =
L1_CACHE_ALIGN(parisc_cache_flush_threshold);
 	if (!parisc_cache_flush_threshold)
 		parisc_cache_flush_threshold =3D FLUSH_THRESHOLD;
=20
 	if (parisc_cache_flush_threshold > cache_info.dc_size)
 		parisc_cache_flush_threshold =3D cache_info.dc_size;
=20
-	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs =
online)\n", parisc_cache_flush_threshold, num_online_cpus());
+	printk(KERN_INFO "Setting cache flush threshold to %lu kB\n",
+		parisc_cache_flush_threshold/1024);
+
+	/* calculate TLB flush threshold */
+
+	alltime =3D mfctl(16);
+	flush_tlb_all();
+	alltime =3D mfctl(16) - alltime;
+
+	size =3D PAGE_SIZE;
+	start =3D (unsigned long) _text;
+	rangetime =3D mfctl(16);
+	while (start < (unsigned long) _end) {
+		flush_tlb_kernel_range(start, start + PAGE_SIZE);
+		start +=3D PAGE_SIZE;
+		size +=3D PAGE_SIZE;
+	}
+	rangetime =3D mfctl(16) - rangetime;
+
+	printk(KERN_DEBUG "Whole TLB flush %lu cycles, flushing %lu =
bytes %lu cycles\n",
+		alltime, size, rangetime);
+
+	parisc_tlb_flush_threshold =3D size * alltime / rangetime;
+	parisc_tlb_flush_threshold *=3D num_online_cpus();
+	parisc_tlb_flush_threshold =3D =
PAGE_ALIGN(parisc_tlb_flush_threshold);
+	if (!parisc_tlb_flush_threshold)
+		parisc_tlb_flush_threshold =3D FLUSH_TLB_THRESHOLD;
+
+	printk(KERN_INFO "Setting TLB flush threshold to %lu kB\n",
+		parisc_tlb_flush_threshold/1024);
 }
=20
 extern void purge_kernel_dcache_page_asm(unsigned long);
@@ -403,48 +435,45 @@ void copy_user_page(void *vto, void *vfrom, =
unsigned long vaddr,
 }
 EXPORT_SYMBOL(copy_user_page);
=20
-void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
-{
-	unsigned long flags;
-
-	/* Note: purge_tlb_entries can be called at startup with
-	   no context.  */
-
-	purge_tlb_start(flags);
-	mtsp(mm->context, 1);
-	pdtlb(addr);
-	pitlb(addr);
-	purge_tlb_end(flags);
-}
-EXPORT_SYMBOL(purge_tlb_entries);
-
-void __flush_tlb_range(unsigned long sid, unsigned long start,
-		       unsigned long end)
+/* __flush_tlb_range()
+ *
+ * returns 1 if all TLBs were flushed.
+ */
+int __flush_tlb_range(unsigned long sid, unsigned long start,
+		      unsigned long end)
 {
-	unsigned long npages;
+	unsigned long flags, size;
=20
-	npages =3D ((end - (start & PAGE_MASK)) + (PAGE_SIZE - 1)) >> =
PAGE_SHIFT;
-	if (npages >=3D 512)  /* 2MB of space: arbitrary, should be =
tuned */
+	size =3D (end - start);
+	if (size >=3D parisc_tlb_flush_threshold) {
 		flush_tlb_all();
-	else {
-		unsigned long flags;
+		return 1;
+	}
=20
+	/* Purge TLB entries for small ranges using the pdtlb and
+	   pitlb instructions.  These instructions execute locally
+	   but cause a purge request to be broadcast to other TLBs.  */
+	if (likely(!split_tlb)) {
+		while (start < end) {
+			purge_tlb_start(flags);
+			mtsp(sid, 1);
+			pdtlb(start);
+			purge_tlb_end(flags);
+			start +=3D PAGE_SIZE;
+		}
+		return 0;
+	}
+
+	/* split TLB case */
+	while (start < end) {
 		purge_tlb_start(flags);
 		mtsp(sid, 1);
-		if (split_tlb) {
-			while (npages--) {
-				pdtlb(start);
-				pitlb(start);
-				start +=3D PAGE_SIZE;
-			}
-		} else {
-			while (npages--) {
-				pdtlb(start);
-				start +=3D PAGE_SIZE;
-			}
-		}
+		pdtlb(start);
+		pitlb(start);
 		purge_tlb_end(flags);
+		start +=3D PAGE_SIZE;
 	}
+	return 0;
 }
=20
 static void cacheflush_h_tmp_function(void *dummy)
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 7581961..1c14e51 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -45,7 +45,7 @@
 	.level 2.0
 #endif
=20
-	.import         pa_dbit_lock,data
+	.import         pa_tlb_lock,data
=20
 	/* space_to_prot macro creates a prot id from a space id */
=20
@@ -420,8 +420,8 @@
 	SHLREG		%r9,PxD_VALUE_SHIFT,\pmd
 	extru		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
 	dep		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
-	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd
-	LDREG		%r0(\pmd),\pte		/* pmd is now pte */
+	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd /* pmd is =
now pte */
+	LDREG		%r0(\pmd),\pte
 	bb,>=3D,n		\pte,_PAGE_PRESENT_BIT,\fault
 	.endm
=20
@@ -453,57 +453,53 @@
 	L2_ptep		\pgd,\pte,\index,\va,\fault
 	.endm
=20
-	/* Acquire pa_dbit_lock lock. */
-	.macro		dbit_lock	spc,tmp,tmp1
+	/* Acquire pa_tlb_lock lock and recheck page is still present. =
*/
+	.macro		tlb_lock	spc,ptp,pte,tmp,tmp1,fault
 #ifdef CONFIG_SMP
 	cmpib,COND(=3D),n	0,\spc,2f
-	load32		PA(pa_dbit_lock),\tmp
+	load32		PA(pa_tlb_lock),\tmp
 1:	LDCW		0(\tmp),\tmp1
 	cmpib,COND(=3D)	0,\tmp1,1b
 	nop
+	LDREG		0(\ptp),\pte
+	bb,<,n		\pte,_PAGE_PRESENT_BIT,2f
+	b		\fault
+	stw             \spc,0(\tmp)
 2:
 #endif
 	.endm
=20
-	/* Release pa_dbit_lock lock without reloading lock address. */
-	.macro		dbit_unlock0	spc,tmp
+	/* Release pa_tlb_lock lock without reloading lock address. */
+	.macro		tlb_unlock0	spc,tmp
 #ifdef CONFIG_SMP
 	or,COND(=3D)	%r0,\spc,%r0
 	stw             \spc,0(\tmp)
 #endif
 	.endm
=20
-	/* Release pa_dbit_lock lock. */
-	.macro		dbit_unlock1	spc,tmp
+	/* Release pa_tlb_lock lock. */
+	.macro		tlb_unlock1	spc,tmp
 #ifdef CONFIG_SMP
-	load32		PA(pa_dbit_lock),\tmp
-	dbit_unlock0	\spc,\tmp
+	load32		PA(pa_tlb_lock),\tmp
+	tlb_unlock0	\spc,\tmp
 #endif
 	.endm
=20
 	/* Set the _PAGE_ACCESSED bit of the PTE.  Be clever and
 	 * don't needlessly dirty the cache line if it was already set =
*/
-	.macro		update_ptep	spc,ptep,pte,tmp,tmp1
-#ifdef CONFIG_SMP
-	or,COND(=3D)	%r0,\spc,%r0
-	LDREG		0(\ptep),\pte
-#endif
+	.macro		update_accessed	ptp,pte,tmp,tmp1
 	ldi		_PAGE_ACCESSED,\tmp1
 	or		\tmp1,\pte,\tmp
 	and,COND(<>)	\tmp1,\pte,%r0
-	STREG		\tmp,0(\ptep)
+	STREG		\tmp,0(\ptp)
 	.endm
=20
 	/* Set the dirty bit (and accessed bit).  No need to be
 	 * clever, this is only used from the dirty fault */
-	.macro		update_dirty	spc,ptep,pte,tmp
-#ifdef CONFIG_SMP
-	or,COND(=3D)	%r0,\spc,%r0
-	LDREG		0(\ptep),\pte
-#endif
+	.macro		update_dirty	ptp,pte,tmp
 	ldi		_PAGE_ACCESSED|_PAGE_DIRTY,\tmp
 	or		\tmp,\pte,\pte
-	STREG		\pte,0(\ptep)
+	STREG		\pte,0(\ptp)
 	.endm
=20
 	/* bitshift difference between a PFN (based on kernel's =
PAGE_SIZE)
@@ -1148,14 +1144,14 @@ dtlb_miss_20w:
=20
 	L3_ptep		ptp,pte,t0,va,dtlb_check_alias_20w
=20
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,dtlb_check_alias_20w
+	update_accessed	ptp,pte,t0,t1
=20
 	make_insert_tlb	spc,pte,prot
 =09
 	idtlbt          pte,prot
-	dbit_unlock1	spc,t0
=20
+	tlb_unlock1	spc,t0
 	rfir
 	nop
=20
@@ -1174,14 +1170,14 @@ nadtlb_miss_20w:
=20
 	L3_ptep		ptp,pte,t0,va,nadtlb_check_alias_20w
=20
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,nadtlb_check_alias_20w
+	update_accessed	ptp,pte,t0,t1
=20
 	make_insert_tlb	spc,pte,prot
=20
 	idtlbt          pte,prot
-	dbit_unlock1	spc,t0
=20
+	tlb_unlock1	spc,t0
 	rfir
 	nop
=20
@@ -1202,20 +1198,20 @@ dtlb_miss_11:
=20
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_11
=20
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,dtlb_check_alias_11
+	update_accessed	ptp,pte,t0,t1
=20
 	make_insert_tlb_11	spc,pte,prot
=20
-	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb =
inserts */
+	mfsp		%sr1,t1  /* Save sr1 so we can use it in tlb =
inserts */
 	mtsp		spc,%sr1
=20
 	idtlba		pte,(%sr1,va)
 	idtlbp		prot,(%sr1,va)
=20
-	mtsp		t0, %sr1	/* Restore sr1 */
-	dbit_unlock1	spc,t0
+	mtsp		t1, %sr1	/* Restore sr1 */
=20
+	tlb_unlock1	spc,t0
 	rfir
 	nop
=20
@@ -1235,21 +1231,20 @@ nadtlb_miss_11:
=20
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_alias_11
=20
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,nadtlb_check_alias_11
+	update_accessed	ptp,pte,t0,t1
=20
 	make_insert_tlb_11	spc,pte,prot
=20
-
-	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb =
inserts */
+	mfsp		%sr1,t1  /* Save sr1 so we can use it in tlb =
inserts */
 	mtsp		spc,%sr1
=20
 	idtlba		pte,(%sr1,va)
 	idtlbp		prot,(%sr1,va)
=20
-	mtsp		t0, %sr1	/* Restore sr1 */
-	dbit_unlock1	spc,t0
+	mtsp		t1, %sr1	/* Restore sr1 */
=20
+	tlb_unlock1	spc,t0
 	rfir
 	nop
=20
@@ -1269,16 +1264,16 @@ dtlb_miss_20:
=20
 	L2_ptep		ptp,pte,t0,va,dtlb_check_alias_20
=20
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,dtlb_check_alias_20
+	update_accessed	ptp,pte,t0,t1
=20
 	make_insert_tlb	spc,pte,prot
=20
-	f_extend	pte,t0
+	f_extend	pte,t1
=20
 	idtlbt          pte,prot
-	dbit_unlock1	spc,t0
=20
+	tlb_unlock1	spc,t0
 	rfir
 	nop
=20
@@ -1297,16 +1292,16 @@ nadtlb_miss_20:
=20
 	L2_ptep		ptp,pte,t0,va,nadtlb_check_alias_20
=20
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,nadtlb_check_alias_20
+	update_accessed	ptp,pte,t0,t1
=20
 	make_insert_tlb	spc,pte,prot
=20
-	f_extend	pte,t0
+	f_extend	pte,t1
 =09
-        idtlbt          pte,prot
-	dbit_unlock1	spc,t0
+	idtlbt          pte,prot
=20
+	tlb_unlock1	spc,t0
 	rfir
 	nop
=20
@@ -1406,14 +1401,14 @@ itlb_miss_20w:
=20
 	L3_ptep		ptp,pte,t0,va,itlb_fault
=20
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,itlb_fault
+	update_accessed	ptp,pte,t0,t1
=20
 	make_insert_tlb	spc,pte,prot
 =09
 	iitlbt          pte,prot
-	dbit_unlock1	spc,t0
=20
+	tlb_unlock1	spc,t0
 	rfir
 	nop
=20
@@ -1430,14 +1425,14 @@ naitlb_miss_20w:
=20
 	L3_ptep		ptp,pte,t0,va,naitlb_check_alias_20w
=20
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,naitlb_check_alias_20w
+	update_accessed	ptp,pte,t0,t1
=20
 	make_insert_tlb	spc,pte,prot
=20
 	iitlbt          pte,prot
-	dbit_unlock1	spc,t0
=20
+	tlb_unlock1	spc,t0
 	rfir
 	nop
=20
@@ -1458,20 +1453,20 @@ itlb_miss_11:
=20
 	L2_ptep		ptp,pte,t0,va,itlb_fault
=20
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,itlb_fault
+	update_accessed	ptp,pte,t0,t1
=20
 	make_insert_tlb_11	spc,pte,prot
=20
-	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb =
inserts */
+	mfsp		%sr1,t1  /* Save sr1 so we can use it in tlb =
inserts */
 	mtsp		spc,%sr1
=20
 	iitlba		pte,(%sr1,va)
 	iitlbp		prot,(%sr1,va)
=20
-	mtsp		t0, %sr1	/* Restore sr1 */
-	dbit_unlock1	spc,t0
+	mtsp		t1, %sr1	/* Restore sr1 */
=20
+	tlb_unlock1	spc,t0
 	rfir
 	nop
=20
@@ -1482,20 +1477,20 @@ naitlb_miss_11:
=20
 	L2_ptep		ptp,pte,t0,va,naitlb_check_alias_11
=20
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,naitlb_check_alias_11
+	update_accessed	ptp,pte,t0,t1
=20
 	make_insert_tlb_11	spc,pte,prot
=20
-	mfsp		%sr1,t0  /* Save sr1 so we can use it in tlb =
inserts */
+	mfsp		%sr1,t1  /* Save sr1 so we can use it in tlb =
inserts */
 	mtsp		spc,%sr1
=20
 	iitlba		pte,(%sr1,va)
 	iitlbp		prot,(%sr1,va)
=20
-	mtsp		t0, %sr1	/* Restore sr1 */
-	dbit_unlock1	spc,t0
+	mtsp		t1, %sr1	/* Restore sr1 */
=20
+	tlb_unlock1	spc,t0
 	rfir
 	nop
=20
@@ -1516,16 +1511,16 @@ itlb_miss_20:
=20
 	L2_ptep		ptp,pte,t0,va,itlb_fault
=20
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,itlb_fault
+	update_accessed	ptp,pte,t0,t1
=20
 	make_insert_tlb	spc,pte,prot
=20
-	f_extend	pte,t0=09
+	f_extend	pte,t1=09
=20
 	iitlbt          pte,prot
-	dbit_unlock1	spc,t0
=20
+	tlb_unlock1	spc,t0
 	rfir
 	nop
=20
@@ -1536,16 +1531,16 @@ naitlb_miss_20:
=20
 	L2_ptep		ptp,pte,t0,va,naitlb_check_alias_20
=20
-	dbit_lock	spc,t0,t1
-	update_ptep	spc,ptp,pte,t0,t1
+	tlb_lock	spc,ptp,pte,t0,t1,naitlb_check_alias_20
+	update_accessed	ptp,pte,t0,t1
=20
 	make_insert_tlb	spc,pte,prot
=20
-	f_extend	pte,t0
+	f_extend	pte,t1
=20
 	iitlbt          pte,prot
-	dbit_unlock1	spc,t0
=20
+	tlb_unlock1	spc,t0
 	rfir
 	nop
=20
@@ -1568,14 +1563,14 @@ dbit_trap_20w:
=20
 	L3_ptep		ptp,pte,t0,va,dbit_fault
=20
-	dbit_lock	spc,t0,t1
-	update_dirty	spc,ptp,pte,t1
+	tlb_lock	spc,ptp,pte,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t1
=20
 	make_insert_tlb	spc,pte,prot
 	=09
 	idtlbt          pte,prot
-	dbit_unlock0	spc,t0
=20
+	tlb_unlock0	spc,t0
 	rfir
 	nop
 #else
@@ -1588,8 +1583,8 @@ dbit_trap_11:
=20
 	L2_ptep		ptp,pte,t0,va,dbit_fault
=20
-	dbit_lock	spc,t0,t1
-	update_dirty	spc,ptp,pte,t1
+	tlb_lock	spc,ptp,pte,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t1
=20
 	make_insert_tlb_11	spc,pte,prot
=20
@@ -1600,8 +1595,8 @@ dbit_trap_11:
 	idtlbp		prot,(%sr1,va)
=20
 	mtsp            t1, %sr1     /* Restore sr1 */
-	dbit_unlock0	spc,t0
=20
+	tlb_unlock0	spc,t0
 	rfir
 	nop
=20
@@ -1612,16 +1607,16 @@ dbit_trap_20:
=20
 	L2_ptep		ptp,pte,t0,va,dbit_fault
=20
-	dbit_lock	spc,t0,t1
-	update_dirty	spc,ptp,pte,t1
+	tlb_lock	spc,ptp,pte,t0,t1,dbit_fault
+	update_dirty	ptp,pte,t1
=20
 	make_insert_tlb	spc,pte,prot
=20
 	f_extend	pte,t1
 =09
-        idtlbt          pte,prot
-	dbit_unlock0	spc,t0
+	idtlbt          pte,prot
=20
+	tlb_unlock0	spc,t0
 	rfir
 	nop
 #endif
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 47ee620..7f67c4c 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -43,10 +43,6 @@
=20
 #include "../math-emu/math-emu.h"	/* for handle_fpe() */
=20
-#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
-DEFINE_SPINLOCK(pa_dbit_lock);
-#endif

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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/28213>

mlock() allows a user to control page out of program memory, but this
comes at the cost of faulting in the entire mapping when it is
allocated.  For large mappings where the entire area is not necessary
this is not ideal.  Instead of forcing all locked pages to be present
when they are allocated, this set creates a middle ground.  Pages are
marked to be placed on the unevictable LRU (locked) when they are first
used, but they are not faulted in by the mlock call.

This series introduces a new mlock() system call that takes a flags
argument along with the start address and size.  This flags argument
gives the caller the ability to request memory be locked in the
traditional way, or to be locked after the page is faulted in.  New
calls are added for munlock() and munlockall() which give the called a
way to specify which flags are supposed to be cleared.  A new MCL flag
is added to mirror the lock on fault behavior from mlock() in
mlockall().  Finally, a flag for mmap() is added that allows a user to
specify that the covered are should not be paged out, but only after the
memory has been used the first time.

There are two main use cases that this set covers.  The first is the
security focussed mlock case.  A buffer is needed that cannot be written
to swap.  The maximum size is known, but on average the memory used is
significantly less than this maximum.  With lock on fault, the buffer
is guaranteed to never be paged out without consuming the maximum size
every time such a buffer is created.

The second use case is focussed on performance.  Portions of a large
file are needed and we want to keep the used portions in memory once
accessed.  This is the case for large graphical models where the path
through the graph is not known until run time.  The entire graph is
unlikely to be used in a given invocation, but once a node has been
used it needs to stay resident for further processing.  Given these
constraints we have a number of options.  We can potentially waste a
large amount of memory by mlocking the entire region (this can also
cause a significant stall at startup as the entire file is read in).
We can mlock every page as we access them without tracking if the page
is already resident but this introduces large overhead for each access.
The third option is mapping the entire region with PROT_NONE and using
a signal handler for SIGSEGV to mprotect(PROT_READ) and mlock() the
needed page.  Doing this page at a time adds a significant performance
penalty.  Batching can be used to mitigate this overhead, but in order
to safely avoid trying to mprotect pages outside of the mapping, the
boundaries of each mapping to be used in this way must be tracked and
available to the signal handler.  This is precisely what the mm system
in the kernel should already be doing.

For mlock(MLOCK_ONFAULT) and mmap(MAP_LOCKONFAULT) the user is charged
against RLIMIT_MEMLOCK as if mlock(MLOCK_LOCKED) or mmap(MAP_LOCKED) was
used, so when the VMA is created not when the pages are faulted in.  For
mlockall(MCL_ONFAULT) the user is charged as if MCL_FUTURE was used.
This decision was made to keep the accounting checks out of the page
fault path.

To illustrate the benefit of this set I wrote a test program that mmaps
a 5 GB file filled with random data and then makes 15,000,000 accesses
to random addresses in that mapping.  The test program was run 20 times
for each setup.  Results are reported for two program portions, setup
and execution.  The setup phase is calling mmap and optionally mlock on
the entire region.  For most experiments this is trivial, but it
highlights the cost of faulting in the entire region.  Results are
averages across the 20 runs in milliseconds.

mmap with mlock(MLOCK_LOCKED) on entire range:
Setup avg:      8228.666
Processing avg: 8274.257

mmap with mlock(MLOCK_LOCKED) before each access:
Setup avg:      0.113
Processing avg: 90993.552

mmap with PROT_NONE and signal handler and batch size of 1 page:
With the default value in max_map_count, this gets ENOMEM as I attempt
to change the permissions, after upping the sysctl significantly I get:
Setup avg:      0.058
Processing avg: 69488.073

mmap with PROT_NONE and signal handler and batch size of 8 pages:
Setup avg:      0.068
Processing avg: 38204.116

mmap with PROT_NONE and signal handler and batch size of 16 pages:
Setup avg:      0.044
Processing avg: 29671.180

mmap with mlock(MLOCK_ONFAULT) on entire range:
Setup avg:      0.189
Processing avg: 17904.899

The signal handler in the batch cases faulted in memory in two steps to
avoid having to know the start and end of the faulting mapping.  The
first step covers the page that caused the fault as we know that it will
be possible to lock.  The second step speculatively tries to mlock and
mprotect the batch size - 1 pages that follow.  There may be a clever
way to avoid this without having the program track each mapping to be
covered by this handeler in a globally accessible structure, but I could
not find it.  It should be noted that with a large enough batch size
this two step fault handler can still cause the program to crash if it
reaches far beyond the end of the mapping.

These results show that if the developer knows that a majority of the
mapping will be used, it is better to try and fault it in at once,
otherwise MAP_LOCKONFAULT is significantly faster.

The performance cost of these patches are minimal on the two benchmarks
I have tested (stream and kernbench).  The following are the average
values across 20 runs of stream and 10 runs of kernbench after a warmup
run whose results were discarded.

Avg throughput in MB/s from stream using 1000000 element arrays
Test     4.2-rc1      4.2-rc1+lock-on-fault
Copy:    10,566.5     10,421
Scale:   10,685       10,503.5
Add:     12,044.1     11,814.2
Triad:   12,064.8     11,846.3

Kernbench optimal load
                 4.2-rc1  4.2-rc1+lock-on-fault
Elapsed Time     78.453   78.991
User Time        64.2395  65.2355
System Time      9.7335   9.7085
Context Switches 22211.5  22412.1
Sleeps           14965.3  14956.1

---

Changes from V2:

Added new system calls for mlock, munlock, and munlockall with added
flags arguments for controlling how memory is locked or unlocked.

Eric B Munson (5):
  mm: mlock: Refactor mlock, munlock, and munlockall code
  mm: mlock: Add new mlock, munlock, and munlockall system calls
  mm: mlock: Introduce VM_LOCKONFAULT and add mlock flags to enable it
  mm: mmap: Add mmap flag to request VM_LOCKONFAULT
  selftests: vm: Add tests for lock on fault

 arch/alpha/include/asm/unistd.h             |   2 +-
 arch/alpha/include/uapi/asm/mman.h          |   5 +
 arch/alpha/kernel/systbls.S                 |   3 +
 arch/arm/kernel/calls.S                     |   3 +
 arch/arm64/include/asm/unistd32.h           |   6 +
 arch/avr32/kernel/syscall_table.S           |   3 +
 arch/blackfin/mach-common/entry.S           |   3 +
 arch/cris/arch-v10/kernel/entry.S           |   3 +
 arch/cris/arch-v32/kernel/entry.S           |   3 +
 arch/frv/kernel/entry.S                     |   3 +
 arch/ia64/kernel/entry.S                    |   3 +
 arch/m32r/kernel/entry.S                    |   3 +
 arch/m32r/kernel/syscall_table.S            |   3 +
 arch/m68k/kernel/syscalltable.S             |   3 +
 arch/microblaze/kernel/syscall_table.S      |   3 +
 arch/mips/include/uapi/asm/mman.h           |   8 +
 arch/mips/kernel/scall32-o32.S              |   3 +
 arch/mips/kernel/scall64-64.S               |   3 +
 arch/mips/kernel/scall64-n32.S              |   3 +
 arch/mips/kernel/scall64-o32.S              |   3 +
 arch/mn10300/kernel/entry.S                 |   3 +
 arch/parisc/include/uapi/asm/mman.h         |   5 +
 arch/powerpc/include/uapi/asm/mman.h        |   5 +
 arch/s390/kernel/syscalls.S                 |   3 +
 arch/sh/kernel/syscalls_32.S                |   3 +
 arch/sparc/include/uapi/asm/mman.h          |   5 +
 arch/sparc/kernel/systbls_32.S              |   2 +-
 arch/sparc/kernel/systbls_64.S              |   4 +-
 arch/tile/include/uapi/asm/mman.h           |   8 +
 arch/x86/entry/syscalls/syscall_32.tbl      |   3 +
 arch/x86/entry/syscalls/syscall_64.tbl      |   3 +
 arch/xtensa/include/uapi/asm/mman.h         |   8 +
 arch/xtensa/include/uapi/asm/unistd.h       |  10 +-
 fs/proc/task_mmu.c                          |   1 +
 include/linux/mm.h                          |   1 +
 include/linux/mman.h                        |   3 +-
 include/linux/syscalls.h                    |   4 +
 include/uapi/asm-generic/mman.h             |   5 +
 include/uapi/asm-generic/unistd.h           |   8 +-
 kernel/sys_ni.c                             |   3 +
 mm/mlock.c                                  | 135 +++++++++--
 mm/mmap.c                                   |   6 +-
 mm/swap.c                                   |   3 +-
 tools/testing/selftests/vm/Makefile         |   2 +
 tools/testing/selftests/vm/lock-on-fault.c  | 342 ++++++++++++++++++++++++++++
 tools/testing/selftests/vm/on-fault-limit.c |  47 ++++
 tools/testing/selftests/vm/run_vmtests      |  22 ++
 47 files changed, 681 insertions(+), 32 deletions(-)
 create mode 100644 tools/testing/selftests/vm/lock-on-fault.c
 create mode 100644 tools/testing/selftests/vm/on-fault-limit.c

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org

-- 
1.9.1


From - Thu Nov 08 21:37:36 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH V3 3/5] mm: mlock: Introduce VM_LOCKONFAULT and add mlock flags to enable it
Date: Tue,  7 Jul 2015 13:03:41 -0400
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Approved: news@gmane.org
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Cc: Eric B Munson <emunson@akamai.com>,
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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/135234>

The cost of faulting in all memory to be locked can be very high when
working with large mappings.  If only portions of the mapping will be
used this can incur a high penalty for locking.

For the example of a large file, this is the usage pattern for a large
statical language model (probably applies to other statical or graphical
models as well).  For the security example, any application transacting
in data that cannot be swapped out (credit card data, medical records,
etc).

This patch introduces the ability to request that pages are not
pre-faulted, but are placed on the unevictable LRU when they are finally
faulted in.  This can be done area at a time via the
mlock2(MLOCK_ONFAULT) or the mlockall(MCL_ONFAULT) system calls.  These
calls can be undone via munlock2(MLOCK_ONFAULT) or
munlockall2(MCL_ONFAULT).

To keep accounting checks out of the page fault path, users are billed
for the entire mapping lock as if MLOCK_LOCKED was used.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
---
 arch/alpha/include/uapi/asm/mman.h   |  2 +
 arch/mips/include/uapi/asm/mman.h    |  2 +
 arch/parisc/include/uapi/asm/mman.h  |  2 +
 arch/powerpc/include/uapi/asm/mman.h |  2 +
 arch/sparc/include/uapi/asm/mman.h   |  2 +
 arch/tile/include/uapi/asm/mman.h    |  3 ++
 arch/xtensa/include/uapi/asm/mman.h  |  2 +
 fs/proc/task_mmu.c                   |  1 +
 include/linux/mm.h                   |  1 +
 include/uapi/asm-generic/mman.h      |  2 +
 mm/mlock.c                           | 72 ++++++++++++++++++++++++++----------
 mm/mmap.c                            |  4 +-
 mm/swap.c                            |  3 +-
 13 files changed, 75 insertions(+), 23 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index ec72436..77ae8db 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -37,8 +37,10 @@
 
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
+#define MCL_ONFAULT	32768		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 67c1cdf..71ed81d 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -61,11 +61,13 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 /*
  * Flags for mlock
  */
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index daab994..c0871ce 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -31,8 +31,10 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 189e85f..f93f7eb 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -22,8 +22,10 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 13d51be..8cd2ebc 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -17,8 +17,10 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index f69ce48..acdd013 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -36,11 +36,14 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
 
 /*
  * Flags for mlock
  */
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 11f354f..5725a15 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -74,11 +74,13 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 /*
  * Flags for mlock
  */
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index ca1e091..38d69fc 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -579,6 +579,7 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma)
 #ifdef CONFIG_X86_INTEL_MPX
 		[ilog2(VM_MPX)]		= "mp",
 #endif
+		[ilog2(VM_LOCKONFAULT)]	= "lf",
 		[ilog2(VM_LOCKED)]	= "lo",
 		[ilog2(VM_IO)]		= "io",
 		[ilog2(VM_SEQ_READ)]	= "sr",
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 2e872f9..ae40c7d 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -127,6 +127,7 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_PFNMAP	0x00000400	/* Page-ranges managed without "struct page", just pure PFN */
 #define VM_DENYWRITE	0x00000800	/* ETXTBSY on write attempts.. */
 
+#define VM_LOCKONFAULT	0x00001000	/* Lock the pages covered when they are faulted in */
 #define VM_LOCKED	0x00002000
 #define VM_IO           0x00004000	/* Memory mapped I/O or similar */
 
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index 242436b..555aab0 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -17,7 +17,9 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/mm/mlock.c b/mm/mlock.c
index d6e61d6..d9414d6 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -502,11 +502,12 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
 	pgoff_t pgoff;
 	int nr_pages;
 	int ret = 0;
-	int lock = !!(newflags & VM_LOCKED);
+	int lock = !!(newflags & (VM_LOCKED | VM_LOCKONFAULT));
 
 	if (newflags == vma->vm_flags || (vma->vm_flags & VM_SPECIAL) ||
 	    is_vm_hugetlb_page(vma) || vma == get_gate_vma(current->mm))
-		goto out;	/* don't set VM_LOCKED,  don't count */
+		/* don't set VM_LOCKED or VM_LOCKONFAULT and don't count */
+		goto out;
 
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,
@@ -581,10 +582,12 @@ static int apply_vma_flags(unsigned long start, size_t len,
 		/* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
 
 		newflags = vma->vm_flags;
-		if (add_flags)
+		if (add_flags) {
+			newflags &= ~(VM_LOCKED | VM_LOCKONFAULT);
 			newflags |= flags;
-		else
+		} else {
 			newflags &= ~flags;
+		}
 
 		tmp = vma->vm_end;
 		if (tmp > end)
@@ -637,9 +640,12 @@ static int do_mlock(unsigned long start, size_t len, vm_flags_t flags)
 	if (error)
 		return error;
 
-	error = __mm_populate(start, len, 0);
-	if (error)
-		return __mlock_posix_error_return(error);
+	if (flags & VM_LOCKED) {
+		error = __mm_populate(start, len, 0);
+		if (error)
+			return __mlock_posix_error_return(error);
+	}
+
 	return 0;
 }
 
@@ -650,10 +656,14 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 
 SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
 {
-	if (!flags || flags & ~MLOCK_LOCKED)
+	if (!flags || (flags & ~(MLOCK_LOCKED | MLOCK_ONFAULT)) ||
+	    flags == (MLOCK_LOCKED | MLOCK_ONFAULT))
 		return -EINVAL;
 
-	return do_mlock(start, len, VM_LOCKED);
+	if (flags & MLOCK_LOCKED)
+		return do_mlock(start, len, VM_LOCKED);
+
+	return do_mlock(start, len, VM_LOCKONFAULT);
 }
 
 static int do_munlock(unsigned long start, size_t len, vm_flags_t flags)
@@ -677,26 +687,41 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 
 SYSCALL_DEFINE3(munlock2, unsigned long, start, size_t, len, int, flags)
 {
-	if (!flags || flags & ~MLOCK_LOCKED)
+	vm_flags_t to_clear = 0;
+
+	if (!flags || flags & ~(MLOCK_LOCKED | MLOCK_ONFAULT))
 		return -EINVAL;
-	return do_munlock(start, len, VM_LOCKED);
+
+	if (flags & MLOCK_LOCKED)
+		to_clear |= VM_LOCKED;
+	if (flags & MLOCK_ONFAULT)
+		to_clear |= VM_LOCKONFAULT;
+
+	return do_munlock(start, len, to_clear);
 }
 
 static int do_mlockall(int flags)
 {
 	struct vm_area_struct * vma, * prev = NULL;
+	vm_flags_t to_add;
 
 	if (flags & MCL_FUTURE)
 		current->mm->def_flags |= VM_LOCKED;
 	if (flags == MCL_FUTURE)
 		goto out;
 
+	if (flags & MCL_ONFAULT) {
+		current->mm->def_flags |= VM_LOCKONFAULT;
+		to_add = VM_LOCKONFAULT;
+	} else {
+		to_add = VM_LOCKED;
+	}
+
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
-		if (flags & MCL_CURRENT)
-			newflags |= VM_LOCKED;
+		newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
+		newflags |= to_add;
 
 		/* Ignore errors */
 		mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);
@@ -711,7 +736,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	unsigned long lock_limit;
 	int ret = -EINVAL;
 
-	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
+	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT)) ||
+	    (flags & (MCL_FUTURE | MCL_ONFAULT)) == (MCL_FUTURE | MCL_ONFAULT))
 		goto out;
 
 	ret = -EPERM;
@@ -740,18 +766,24 @@ out:
 static int do_munlockall(int flags)
 {
 	struct vm_area_struct * vma, * prev = NULL;
+	vm_flags_t to_clear = 0;
 
 	if (flags & MCL_FUTURE)
 		current->mm->def_flags &= ~VM_LOCKED;
+	if (flags & MCL_ONFAULT)
+		current->mm->def_flags &= ~VM_LOCKONFAULT;
 	if (flags == MCL_FUTURE)
 		goto out;
 
+	if (flags & MCL_CURRENT)
+		to_clear |= VM_LOCKED;
+	if (flags & MCL_ONFAULT)
+		to_clear |= VM_LOCKONFAULT;
+
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
-		newflags = vma->vm_flags;
-		if (flags & MCL_CURRENT)
-			newflags &= ~VM_LOCKED;
+		newflags = vma->vm_flags & ~to_clear;
 
 		/* Ignore errors */
 		mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);
@@ -766,7 +798,7 @@ SYSCALL_DEFINE0(munlockall)
 	int ret;
 
 	down_write(&current->mm->mmap_sem);
-	ret = do_munlockall(MCL_CURRENT | MCL_FUTURE);
+	ret = do_munlockall(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT);
 	up_write(&current->mm->mmap_sem);
 	return ret;
 }
@@ -775,7 +807,7 @@ SYSCALL_DEFINE1(munlockall2, int, flags)
 {
 	int ret = -EINVAL;
 
-	if (!flags || flags & ~(MCL_CURRENT | MCL_FUTURE))
+	if (!flags || flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT))
 		return ret;
 
 	down_write(&current->mm->mmap_sem);
diff --git a/mm/mmap.c b/mm/mmap.c
index aa632ad..eb970ba 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1232,8 +1232,8 @@ static inline int mlock_future_check(struct mm_struct *mm,
 {
 	unsigned long locked, lock_limit;
 
-	/*  mlock MCL_FUTURE? */
-	if (flags & VM_LOCKED) {
+	/*  mlock MCL_FUTURE or MCL_ONFAULT? */
+	if (flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 		locked = len >> PAGE_SHIFT;
 		locked += mm->locked_vm;
 		lock_limit = rlimit(RLIMIT_MEMLOCK);
diff --git a/mm/swap.c b/mm/swap.c
index a3a0a2f..3580a21 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -710,7 +710,8 @@ void lru_cache_add_active_or_unevictable(struct page *page,
 {
 	VM_BUG_ON_PAGE(PageLRU(page), page);
 
-	if (likely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) != VM_LOCKED)) {
+	if (likely((vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) == 0) ||
+		   (vma->vm_flags & VM_SPECIAL)) {
 		SetPageActive(page);
 		lru_cache_add(page);
 		return;
-- 
1.9.1

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From - Thu Nov 08 21:37:36 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH V3 4/5] mm: mmap: Add mmap flag to request VM_LOCKONFAULT
Date: Tue,  7 Jul 2015 13:03:42 -0400
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Xref: news.gmane.org gmane.linux.kernel.mm:135235 gmane.linux.ports.alpha:3173 gmane.linux.kernel:1990568 gmane.linux.ports.mips.general:49250 gmane.linux.ports.parisc:25806 gmane.linux.ports.ppc64.devel:114890 gmane.linux.ports.sparc:21207 gmane.linux.kernel.cross-arch:28215 gmane.linux.kernel.api:12587
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/135235>

The cost of faulting in all memory to be locked can be very high when
working with large mappings.  If only portions of the mapping will be
used this can incur a high penalty for locking.

Now that we have the new VMA flag for the locked but not present state,
expose it  as an mmap option like MAP_LOCKED -> VM_LOCKED.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
---
 arch/alpha/include/uapi/asm/mman.h   | 1 +
 arch/mips/include/uapi/asm/mman.h    | 1 +
 arch/parisc/include/uapi/asm/mman.h  | 1 +
 arch/powerpc/include/uapi/asm/mman.h | 1 +
 arch/sparc/include/uapi/asm/mman.h   | 1 +
 arch/xtensa/include/uapi/asm/mman.h  | 1 +
 include/linux/mman.h                 | 3 ++-
 include/uapi/asm-generic/mman.h      | 1 +
 mm/mmap.c                            | 2 +-
 9 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 77ae8db..3f80ca4 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -30,6 +30,7 @@
 #define MAP_NONBLOCK	0x40000		/* do not block on IO */
 #define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x200000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_SYNC		2		/* synchronous memory sync */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 71ed81d..905c1ea 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -48,6 +48,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 /*
  * Flags for msync
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index c0871ce..c4695f6 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -24,6 +24,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_SYNC		1		/* synchronous memory sync */
 #define MS_ASYNC	2		/* sync memory asynchronously */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index f93f7eb..40a3fda 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -31,5 +31,6 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 #endif /* _UAPI_ASM_POWERPC_MMAN_H */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 8cd2ebc..3d74ab7 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -26,6 +26,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x8000		/* Lock pages after they are faulted in, do not prefault */
 
 
 #endif /* _UAPI__SPARC_MMAN_H__ */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 5725a15..689e1f2 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -55,6 +55,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 #ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
 # define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be
 					 * uninitialized */
diff --git a/include/linux/mman.h b/include/linux/mman.h
index 16373c8..437264b 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -86,7 +86,8 @@ calc_vm_flag_bits(unsigned long flags)
 {
 	return _calc_vm_trans(flags, MAP_GROWSDOWN,  VM_GROWSDOWN ) |
 	       _calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
-	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    );
+	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    ) |
+	       _calc_vm_trans(flags, MAP_LOCKONFAULT,VM_LOCKONFAULT);
 }
 
 unsigned long vm_commit_limit(void);
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index 555aab0..007b784 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -12,6 +12,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 /* Bits [26:31] are reserved, see mman-common.h for MAP_HUGETLB usage */
 
diff --git a/mm/mmap.c b/mm/mmap.c
index eb970ba..2dc4da3 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1301,7 +1301,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 	vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
 			mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
 
-	if (flags & MAP_LOCKED)
+	if (flags & (MAP_LOCKED | MAP_LOCKONFAULT))
 		if (!can_do_mlock())
 			return -EPERM;
 
-- 
1.9.1

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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch
Subject: [PATCH V3 2/5] mm: mlock: Add new mlock, munlock, and munlockall system calls
Date: Tue,  7 Jul 2015 13:03:40 -0400
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/135236>

With the refactored mlock code, introduce new system calls for mlock,
munlock, and munlockall.  The new calls will allow the user to specify
what lock states are being added or cleared.  mlock2 and munlock2 are
trivial at the moment, but a follow on patch will add a new mlock state
making them useful.

munlock2 addresses a limitation of the current implementation.  If a
user calls mlockall(MCL_CURRENT | MCL_FUTURE) and then later decides
that MCL_FUTURE should be removed, they would have to call munlockall()
followed by mlockall(MCL_CURRENT) which could potentially be very
expensive.  The new munlockall2 system call allows a user to simply
clear the MCL_FUTURE flag.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: linux-cris-kernel@axis.com
Cc: linux-ia64@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-mips@linux-mips.org
Cc: linux-am33-list@redhat.com
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mm@kvack.org
---
 arch/alpha/include/asm/unistd.h        |  2 +-
 arch/alpha/include/uapi/asm/mman.h     |  2 ++
 arch/alpha/kernel/systbls.S            |  3 +++
 arch/arm/kernel/calls.S                |  3 +++
 arch/arm64/include/asm/unistd32.h      |  6 ++++++
 arch/avr32/kernel/syscall_table.S      |  3 +++
 arch/blackfin/mach-common/entry.S      |  3 +++
 arch/cris/arch-v10/kernel/entry.S      |  3 +++
 arch/cris/arch-v32/kernel/entry.S      |  3 +++
 arch/frv/kernel/entry.S                |  3 +++
 arch/ia64/kernel/entry.S               |  3 +++
 arch/m32r/kernel/entry.S               |  3 +++
 arch/m32r/kernel/syscall_table.S       |  3 +++
 arch/m68k/kernel/syscalltable.S        |  3 +++
 arch/microblaze/kernel/syscall_table.S |  3 +++
 arch/mips/include/uapi/asm/mman.h      |  5 +++++
 arch/mips/kernel/scall32-o32.S         |  3 +++
 arch/mips/kernel/scall64-64.S          |  3 +++
 arch/mips/kernel/scall64-n32.S         |  3 +++
 arch/mips/kernel/scall64-o32.S         |  3 +++
 arch/mn10300/kernel/entry.S            |  3 +++
 arch/parisc/include/uapi/asm/mman.h    |  2 ++
 arch/powerpc/include/uapi/asm/mman.h   |  2 ++
 arch/s390/kernel/syscalls.S            |  3 +++
 arch/sh/kernel/syscalls_32.S           |  3 +++
 arch/sparc/include/uapi/asm/mman.h     |  2 ++
 arch/sparc/kernel/systbls_32.S         |  2 +-
 arch/sparc/kernel/systbls_64.S         |  4 ++--
 arch/tile/include/uapi/asm/mman.h      |  5 +++++
 arch/x86/entry/syscalls/syscall_32.tbl |  3 +++
 arch/x86/entry/syscalls/syscall_64.tbl |  3 +++
 arch/xtensa/include/uapi/asm/mman.h    |  5 +++++
 arch/xtensa/include/uapi/asm/unistd.h  | 10 ++++++++--
 include/linux/syscalls.h               |  4 ++++
 include/uapi/asm-generic/mman.h        |  2 ++
 include/uapi/asm-generic/unistd.h      |  8 +++++++-
 kernel/sys_ni.c                        |  3 +++
 mm/mlock.c                             | 28 ++++++++++++++++++++++++++++
 38 files changed, 148 insertions(+), 7 deletions(-)

diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index a56e608..1d09392 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -3,7 +3,7 @@
 
 #include <uapi/asm/unistd.h>
 
-#define NR_SYSCALLS			514
+#define NR_SYSCALLS			517
 
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_STAT64
diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..ec72436 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -38,6 +38,8 @@
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
 #define MADV_SEQUENTIAL	2		/* expect sequential page references */
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index 9b62e3f..04d1cce 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -532,6 +532,9 @@ sys_call_table:
 	.quad sys_getrandom
 	.quad sys_memfd_create
 	.quad sys_execveat
+	.quad sys_mlock2
+	.quad sys_munlock2			/* 515 */
+	.quad sys_munlockall2
 
 	.size sys_call_table, . - sys_call_table
 	.type sys_call_table, @object
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 05745eb..514e77b 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -397,6 +397,9 @@
 /* 385 */	CALL(sys_memfd_create)
 		CALL(sys_bpf)
 		CALL(sys_execveat)
+		CALL(sys_mlock2)
+		CALL(sys_munlock2)
+/* 400 */	CALL(sys_munlockall2)
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index cef934a..318072aa 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -797,3 +797,9 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
 __SYSCALL(__NR_bpf, sys_bpf)
 #define __NR_execveat 387
 __SYSCALL(__NR_execveat, compat_sys_execveat)
+#define __NR_mlock2 388
+__SYSCALL(__NR_mlock2, sys_mlock2)
+#define __NR_munlock2 389
+__SYSCALL(__NR_munlock2, sys_munlock2)
+#define __NR_munlockall2 390
+__SYSCALL(__NR_munlockall2, sys_munlockall2)
diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S
index c3b593b..83928ab 100644
--- a/arch/avr32/kernel/syscall_table.S
+++ b/arch/avr32/kernel/syscall_table.S
@@ -334,4 +334,7 @@ sys_call_table:
 	.long	sys_memfd_create
 	.long	sys_bpf
 	.long	sys_execveat		/* 320 */
+	.long   sys_mlock2
+	.long   sys_munlock2
+	.long   sys_munlockall2
 	.long	sys_ni_syscall		/* r8 is saturated at nr_syscalls */
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 8d9431e..5d83587 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -1704,6 +1704,9 @@ ENTRY(_sys_call_table)
 	.long _sys_memfd_create		/* 390 */
 	.long _sys_bpf
 	.long _sys_execveat
+	.long _sys_mlock2
+	.long _sys_munlock2
+	.long _sys_munlockall2		/* 395 */
 
 	.rept NR_syscalls-(.-_sys_call_table)/4
 	.long _sys_ni_syscall
diff --git a/arch/cris/arch-v10/kernel/entry.S b/arch/cris/arch-v10/kernel/entry.S
index 81570fc..d0ce531 100644
--- a/arch/cris/arch-v10/kernel/entry.S
+++ b/arch/cris/arch-v10/kernel/entry.S
@@ -955,6 +955,9 @@ sys_call_table:
 	.long sys_process_vm_writev
 	.long sys_kcmp			/* 350 */
 	.long sys_finit_module
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2
 
         /*
          * NOTE!! This doesn't have to be exact - we just have
diff --git a/arch/cris/arch-v32/kernel/entry.S b/arch/cris/arch-v32/kernel/entry.S
index 026a0b2..7f50a0b 100644
--- a/arch/cris/arch-v32/kernel/entry.S
+++ b/arch/cris/arch-v32/kernel/entry.S
@@ -875,6 +875,9 @@ sys_call_table:
 	.long sys_process_vm_writev
 	.long sys_kcmp			/* 350 */
 	.long sys_finit_module
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2
 
 	/*
 	 * NOTE!! This doesn't have to be exact - we just have
diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S
index dfcd263..ee605a0 100644
--- a/arch/frv/kernel/entry.S
+++ b/arch/frv/kernel/entry.S
@@ -1515,5 +1515,8 @@ sys_call_table:
 	.long sys_rt_tgsigqueueinfo	/* 335 */
 	.long sys_perf_event_open
 	.long sys_setns
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2		/* 340 */
 
 syscall_table_size = (. - sys_call_table)
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index ae0de7b..3ef4457 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1768,5 +1768,8 @@ sys_call_table:
 	data8 sys_memfd_create			// 1340
 	data8 sys_bpf
 	data8 sys_execveat
+	data8 sys_mlock2
+	data8 sys_munlock2
+	data8 sys_munlockall2			// 1345
 
 	.org sys_call_table + 8*NR_syscalls	// guard against failures to increase NR_syscalls
diff --git a/arch/m32r/kernel/entry.S b/arch/m32r/kernel/entry.S
index c639bfa..4f7f2e2 100644
--- a/arch/m32r/kernel/entry.S
+++ b/arch/m32r/kernel/entry.S
@@ -76,6 +76,9 @@
 #define sys_munlock		sys_ni_syscall
 #define sys_mlockall		sys_ni_syscall
 #define sys_munlockall		sys_ni_syscall
+#define sys_mlock2		sys_ni_syscall
+#define sys_munlock2		sys_ni_syscall
+#define sys_munlockall2		sys_ni_syscall
 #define sys_mremap		sys_ni_syscall
 #define sys_mincore		sys_ni_syscall
 #define sys_remap_file_pages	sys_ni_syscall
diff --git a/arch/m32r/kernel/syscall_table.S b/arch/m32r/kernel/syscall_table.S
index f365c19..9918c3e 100644
--- a/arch/m32r/kernel/syscall_table.S
+++ b/arch/m32r/kernel/syscall_table.S
@@ -325,3 +325,6 @@ ENTRY(sys_call_table)
 	.long sys_eventfd
 	.long sys_fallocate
 	.long sys_setns			/* 325 */
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2
diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S
index a0ec430..7963c03 100644
--- a/arch/m68k/kernel/syscalltable.S
+++ b/arch/m68k/kernel/syscalltable.S
@@ -376,4 +376,7 @@ ENTRY(sys_call_table)
 	.long sys_memfd_create
 	.long sys_bpf
 	.long sys_execveat		/* 355 */
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2
 
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index 29c8568..6e4b0fe 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -389,3 +389,6 @@ ENTRY(sys_call_table)
 	.long sys_memfd_create
 	.long sys_bpf
 	.long sys_execveat
+	.long sys_mlock2
+	.long sys_munlock2		/* 390 */
+	.long sys_munlockall2
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..67c1cdf 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -62,6 +62,11 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
 #define MADV_SEQUENTIAL 2		/* expect sequential page references */
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 6e8de80..7af6066 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -582,3 +582,6 @@ EXPORT(sys_call_table)
 	PTR	sys_memfd_create
 	PTR	sys_bpf				/* 4355 */
 	PTR	sys_execveat
+	PTR	sys_mlock2
+	PTR	sys_munlock2
+	PTR	sys_munlockall2
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index ad4d4463..0aa2742 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -436,4 +436,7 @@ EXPORT(sys_call_table)
 	PTR	sys_memfd_create
 	PTR	sys_bpf				/* 5315 */
 	PTR	sys_execveat
+	PTR	sys_mlock2
+	PTR	sys_munlock2
+	PTR	sys_munlockall2
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 446cc65..eb21955 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -429,4 +429,7 @@ EXPORT(sysn32_call_table)
 	PTR	sys_memfd_create
 	PTR	sys_bpf
 	PTR	compat_sys_execveat		/* 6320 */
+	PTR	sys_mlock2
+	PTR	sys_munlock2
+	PTR	sys_munlockall2
 	.size	sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index d07b210..ee59c82 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -567,4 +567,7 @@ EXPORT(sys32_call_table)
 	PTR	sys_memfd_create
 	PTR	sys_bpf				/* 4355 */
 	PTR	compat_sys_execveat
+	PTR	sys_mlock2
+	PTR	sys_munlock2
+	PTR	sys_munlockall2
 	.size	sys32_call_table,.-sys32_call_table
diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S
index 177d61d..d34adf5 100644
--- a/arch/mn10300/kernel/entry.S
+++ b/arch/mn10300/kernel/entry.S
@@ -767,6 +767,9 @@ ENTRY(sys_call_table)
 	.long sys_perf_event_open
 	.long sys_recvmmsg
 	.long sys_setns
+	.long sys_mlock2		/* 340 */
+	.long sys_munlock2
+	.long sys_munlockall2
 
 
 nr_syscalls=(.-sys_call_table)/4
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..daab994 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -32,6 +32,8 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
 #define MADV_SEQUENTIAL 2               /* expect sequential page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 6ea26df..189e85f 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -23,6 +23,8 @@
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 1acad02..f6d81d6 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -363,3 +363,6 @@ SYSCALL(sys_bpf,compat_sys_bpf)
 SYSCALL(sys_s390_pci_mmio_write,compat_sys_s390_pci_mmio_write)
 SYSCALL(sys_s390_pci_mmio_read,compat_sys_s390_pci_mmio_read)
 SYSCALL(sys_execveat,compat_sys_execveat)
+SYSCALL(sys_mlock2,compat_sys_mlock2)			/* 355 */
+SYSCALL(sys_munlock2,compat_sys_munlock2)
+SYSCALL(sys_munlockall2,compat_sys_munlockall2)
diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S
index 734234b..6d07867 100644
--- a/arch/sh/kernel/syscalls_32.S
+++ b/arch/sh/kernel/syscalls_32.S
@@ -386,3 +386,6 @@ ENTRY(sys_call_table)
 	.long sys_process_vm_writev
 	.long sys_kcmp
 	.long sys_finit_module
+	.long sys_mlock2
+	.long sys_munlock2		/* 370 */
+	.long sys_munlockall2
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 0b14df3..13d51be 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -18,6 +18,8 @@
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index e31a905..72b68d4 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -87,4 +87,4 @@ sys_call_table:
 /*335*/	.long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev
 /*340*/	.long sys_ni_syscall, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr
 /*345*/	.long sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
-/*350*/	.long sys_execveat
+/*350*/	.long sys_execveat, sys_mlock2, sys_munlock2, sys_munlockall2
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index d72f76a..a96bfea 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -88,7 +88,7 @@ sys_call_table32:
 	.word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev
 /*340*/	.word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr
 	.word sys32_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
-/*350*/	.word sys32_execveat
+/*350*/	.word sys32_execveat, sys_mlock2, sys_munlock2, sys_munlockall2
 
 #endif /* CONFIG_COMPAT */
 
@@ -168,4 +168,4 @@ sys_call_table:
 	.word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev
 /*340*/	.word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr
 	.word sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
-/*350*/	.word sys64_execveat
+/*350*/	.word sys64_execveat, sys_mlock2, sys_munlock2, sys_munlockall2
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index 81b8fc3..f69ce48 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -37,5 +37,10 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index ef8187f..13ce950 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -365,3 +365,6 @@
 356	i386	memfd_create		sys_memfd_create
 357	i386	bpf			sys_bpf
 358	i386	execveat		sys_execveat			stub32_execveat
+359	i386	mlock2			sys_mlock2
+360	i386	munlock2		sys_munlock2
+361	i386	munlockall2		sys_munlockall2
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 9ef32d5..13b3cb1 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -329,6 +329,9 @@
 320	common	kexec_file_load		sys_kexec_file_load
 321	common	bpf			sys_bpf
 322	64	execveat		stub_execveat
+323	common	mlock2			sys_mlock2
+324	common	munlock2		sys_munlock2
+325	common	munlockall2		sys_munlockall2
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..11f354f 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -75,6 +75,11 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
 #define MADV_SEQUENTIAL	2		/* expect sequential page references */
diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h
index b95c305..961913c 100644
--- a/arch/xtensa/include/uapi/asm/unistd.h
+++ b/arch/xtensa/include/uapi/asm/unistd.h
@@ -753,8 +753,14 @@ __SYSCALL(339, sys_memfd_create, 2)
 __SYSCALL(340, sys_bpf, 3)
 #define __NR_execveat				341
 __SYSCALL(341, sys_execveat, 5)
-
-#define __NR_syscall_count			342
+#define __NR_mlock2				342
+__SYSCALL(342, sys_mlock2, 3)
+#define __NR_munlock2				343
+__SYSCALL(342, sys_munlock2, 3)
+#define __NR_munlockall2			344
+__SYSCALL(342, sys_munlock2, 1)
+
+#define __NR_syscall_count			345
 
 /*
  * sysxtensa syscall handler
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index b45c45b..aecab5d 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -884,4 +884,8 @@ asmlinkage long sys_execveat(int dfd, const char __user *filename,
 			const char __user *const __user *argv,
 			const char __user *const __user *envp, int flags);
 
+asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
+asmlinkage long sys_munlock2(unsigned long start, size_t len, int flags);
+asmlinkage long sys_munlockall2(int flags);
+
 #endif
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index e9fe6fd..242436b 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -18,4 +18,6 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index e016bd9..e759fa2 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -709,9 +709,15 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
 __SYSCALL(__NR_bpf, sys_bpf)
 #define __NR_execveat 281
 __SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
+#define __NR_mlock2 282
+__SYSCALL(__NR_mlock2, sys_mlock2)
+#define __NR_munlock2 283
+__SYSCALL(__NR_munlock2, sys_munlock2)
+#define __NR_munlockall2 284
+__SYSCALL(__NR_munlockall2, sys_munlockall2)
 
 #undef __NR_syscalls
-#define __NR_syscalls 282
+#define __NR_syscalls 285
 
 /*
  * All syscalls below here should go away really,
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 7995ef5..63529b7 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -193,6 +193,9 @@ cond_syscall(sys_mlock);
 cond_syscall(sys_munlock);
 cond_syscall(sys_mlockall);
 cond_syscall(sys_munlockall);
+cond_syscall(sys_mlock2);
+cond_syscall(sys_munlock2);
+cond_syscall(sys_munlockall2);
 cond_syscall(sys_mincore);
 cond_syscall(sys_madvise);
 cond_syscall(sys_mremap);
diff --git a/mm/mlock.c b/mm/mlock.c
index 8e52c23..d6e61d6 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -648,6 +648,14 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 	return do_mlock(start, len, VM_LOCKED);
 }
 
+SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
+{
+	if (!flags || flags & ~MLOCK_LOCKED)
+		return -EINVAL;
+
+	return do_mlock(start, len, VM_LOCKED);
+}
+
 static int do_munlock(unsigned long start, size_t len, vm_flags_t flags)
 {
 	int ret;
@@ -667,6 +675,13 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 	return do_munlock(start, len, VM_LOCKED);
 }
 
+SYSCALL_DEFINE3(munlock2, unsigned long, start, size_t, len, int, flags)
+{
+	if (!flags || flags & ~MLOCK_LOCKED)
+		return -EINVAL;
+	return do_munlock(start, len, VM_LOCKED);
+}
+
 static int do_mlockall(int flags)
 {
 	struct vm_area_struct * vma, * prev = NULL;
@@ -756,6 +771,19 @@ SYSCALL_DEFINE0(munlockall)
 	return ret;
 }
 
+SYSCALL_DEFINE1(munlockall2, int, flags)
+{
+	int ret = -EINVAL;
+
+	if (!flags || flags & ~(MCL_CURRENT | MCL_FUTURE))
+		return ret;
+
+	down_write(&current->mm->mmap_sem);
+	ret = do_munlockall(flags);
+	up_write(&current->mm->mmap_sem);
+	return ret;
+}
+
 /*
  * Objects with different lifetime than processes (SHM_LOCK and SHM_HUGETLB
  * shm segments) get accounted against the user_struct instead.
-- 
1.9.1

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From - Thu Nov 08 21:37:36 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Newsgroups: gmane.linux.kernel.api,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH V3 0/5] Allow user to request memory to be locked on
 page fault
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	Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>,
	Michael Kerrisk <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Vlastimil Babka <vbabka-AlSwsSmVLrQ@public.gmane.org>, linux-alpha-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org,
	linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
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	linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
To: Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org>
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On Tue,  7 Jul 2015 13:03:38 -0400 Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org> wrote:

> mlock() allows a user to control page out of program memory, but this
> comes at the cost of faulting in the entire mapping when it is
> allocated.  For large mappings where the entire area is not necessary
> this is not ideal.  Instead of forcing all locked pages to be present
> when they are allocated, this set creates a middle ground.  Pages are
> marked to be placed on the unevictable LRU (locked) when they are first
> used, but they are not faulted in by the mlock call.
> 
> This series introduces a new mlock() system call that takes a flags
> argument along with the start address and size.  This flags argument
> gives the caller the ability to request memory be locked in the
> traditional way, or to be locked after the page is faulted in.  New
> calls are added for munlock() and munlockall() which give the called a
> way to specify which flags are supposed to be cleared.  A new MCL flag
> is added to mirror the lock on fault behavior from mlock() in
> mlockall().  Finally, a flag for mmap() is added that allows a user to
> specify that the covered are should not be paged out, but only after the
> memory has been used the first time.

Thanks for sticking with this.  Adding new syscalls is a bit of a
hassle but I do think we end up with a better interface - the existing
mlock/munlock/mlockall interfaces just aren't appropriate for these
things.

I don't know whether these syscalls should be documented via new
manpages, or if we should instead add them to the existing
mlock/munlock/mlockall manpages.  Michael, could you please advise?


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Subject: Re: [PATCH V3 2/5] mm: mlock: Add new mlock, munlock, and munlockall
 system calls
Date: Wed, 8 Jul 2015 08:46:07 +0200
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To: Eric B Munson <emunson@akamai.com>
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On Tue, Jul 07, 2015 at 01:03:40PM -0400, Eric B Munson wrote:
> With the refactored mlock code, introduce new system calls for mlock,
> munlock, and munlockall.  The new calls will allow the user to specify
> what lock states are being added or cleared.  mlock2 and munlock2 are
> trivial at the moment, but a follow on patch will add a new mlock state
> making them useful.
> 
> munlock2 addresses a limitation of the current implementation.  If a
> user calls mlockall(MCL_CURRENT | MCL_FUTURE) and then later decides
> that MCL_FUTURE should be removed, they would have to call munlockall()
> followed by mlockall(MCL_CURRENT) which could potentially be very
> expensive.  The new munlockall2 system call allows a user to simply
> clear the MCL_FUTURE flag.
> 
> Signed-off-by: Eric B Munson <emunson@akamai.com>

...

> diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
> index 1acad02..f6d81d6 100644
> --- a/arch/s390/kernel/syscalls.S
> +++ b/arch/s390/kernel/syscalls.S
> @@ -363,3 +363,6 @@ SYSCALL(sys_bpf,compat_sys_bpf)
>  SYSCALL(sys_s390_pci_mmio_write,compat_sys_s390_pci_mmio_write)
>  SYSCALL(sys_s390_pci_mmio_read,compat_sys_s390_pci_mmio_read)
>  SYSCALL(sys_execveat,compat_sys_execveat)
> +SYSCALL(sys_mlock2,compat_sys_mlock2)			/* 355 */
> +SYSCALL(sys_munlock2,compat_sys_munlock2)
> +SYSCALL(sys_munlockall2,compat_sys_munlockall2)

FWIW, you would also need to add matching lines to the two files

arch/s390/include/uapi/asm/unistd.h
arch/s390/kernel/compat_wrapper.c

so that the system call would be wired up on s390.


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Subject: Re: [PATCH V3 2/5] mm: mlock: Add new mlock, munlock, and munlockall
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Date: Wed, 8 Jul 2015 09:02:25 +0200
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To: Heiko Carstens <heiko.carstens@de.ibm.com>
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On Wed, Jul 8, 2015 at 8:46 AM, Heiko Carstens
<heiko.carstens@de.ibm.com> wrote:
>> diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
>> index 1acad02..f6d81d6 100644
>> --- a/arch/s390/kernel/syscalls.S
>> +++ b/arch/s390/kernel/syscalls.S
>> @@ -363,3 +363,6 @@ SYSCALL(sys_bpf,compat_sys_bpf)
>>  SYSCALL(sys_s390_pci_mmio_write,compat_sys_s390_pci_mmio_write)
>>  SYSCALL(sys_s390_pci_mmio_read,compat_sys_s390_pci_mmio_read)
>>  SYSCALL(sys_execveat,compat_sys_execveat)
>> +SYSCALL(sys_mlock2,compat_sys_mlock2)                        /* 355 */
>> +SYSCALL(sys_munlock2,compat_sys_munlock2)
>> +SYSCALL(sys_munlockall2,compat_sys_munlockall2)
>
> FWIW, you would also need to add matching lines to the two files
>
> arch/s390/include/uapi/asm/unistd.h
> arch/s390/kernel/compat_wrapper.c
>
> so that the system call would be wired up on s390.

Similar comment for m68k:

arch/m68k/include/asm/unistd.h
arch/m68k/include/uapi/asm/unistd.h

I think you best look at the last commits that added system calls, for all
architectures, to make sure you don't do partial updates.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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Subject: Re: [PATCH V3 2/5] mm: mlock: Add new mlock, munlock, and munlockall
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To: Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org>
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On Tue, Jul 07, 2015 at 01:03:40PM -0400, Eric B Munson wrote:
> diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
> index 05745eb..514e77b 100644
> --- a/arch/arm/kernel/calls.S
> +++ b/arch/arm/kernel/calls.S
> @@ -397,6 +397,9 @@
>  /* 385 */	CALL(sys_memfd_create)
>  		CALL(sys_bpf)
>  		CALL(sys_execveat)
> +		CALL(sys_mlock2)
> +		CALL(sys_munlock2)
> +/* 400 */	CALL(sys_munlockall2)

s/400/390/

> diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
> index cef934a..318072aa 100644
> --- a/arch/arm64/include/asm/unistd32.h
> +++ b/arch/arm64/include/asm/unistd32.h
> @@ -797,3 +797,9 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
>  __SYSCALL(__NR_bpf, sys_bpf)
>  #define __NR_execveat 387
>  __SYSCALL(__NR_execveat, compat_sys_execveat)
> +#define __NR_mlock2 388
> +__SYSCALL(__NR_mlock2, sys_mlock2)
> +#define __NR_munlock2 389
> +__SYSCALL(__NR_munlock2, sys_munlock2)
> +#define __NR_munlockall2 390
> +__SYSCALL(__NR_munlockall2, sys_munlockall2)

These look fine.

Catalin

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Subject: Re: [PATCH V3 0/5] Allow user to request memory to be locked on page
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On Tue, 07 Jul 2015, Andrew Morton wrote:

> On Tue,  7 Jul 2015 13:03:38 -0400 Eric B Munson <emunson@akamai.com> wro=
te:
>=20
> > mlock() allows a user to control page out of program memory, but this
> > comes at the cost of faulting in the entire mapping when it is
> > allocated.  For large mappings where the entire area is not necessary
> > this is not ideal.  Instead of forcing all locked pages to be present
> > when they are allocated, this set creates a middle ground.  Pages are
> > marked to be placed on the unevictable LRU (locked) when they are first
> > used, but they are not faulted in by the mlock call.
> >=20
> > This series introduces a new mlock() system call that takes a flags
> > argument along with the start address and size.  This flags argument
> > gives the caller the ability to request memory be locked in the
> > traditional way, or to be locked after the page is faulted in.  New
> > calls are added for munlock() and munlockall() which give the called a
> > way to specify which flags are supposed to be cleared.  A new MCL flag
> > is added to mirror the lock on fault behavior from mlock() in
> > mlockall().  Finally, a flag for mmap() is added that allows a user to
> > specify that the covered are should not be paged out, but only after the
> > memory has been used the first time.
>=20
> Thanks for sticking with this.  Adding new syscalls is a bit of a
> hassle but I do think we end up with a better interface - the existing
> mlock/munlock/mlockall interfaces just aren't appropriate for these
> things.
>=20
> I don't know whether these syscalls should be documented via new
> manpages, or if we should instead add them to the existing
> mlock/munlock/mlockall manpages.  Michael, could you please advise?
>=20

Thanks for adding the series.  I owe you several updates (getting the
new syscall right for all architectures and a set of tests for the new
syscalls).  Would you prefer a new pair of patches or I update this set?

Eric

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From - Thu Nov 08 21:37:36 2018
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Subject: Re: [PATCH V3 0/5] Allow user to request memory to be locked on
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On Wed, 8 Jul 2015 09:23:02 -0400 Eric B Munson <emunson@akamai.com> wrote:

> > I don't know whether these syscalls should be documented via new
> > manpages, or if we should instead add them to the existing
> > mlock/munlock/mlockall manpages.  Michael, could you please advise?
> > 
> 
> Thanks for adding the series.  I owe you several updates (getting the
> new syscall right for all architectures and a set of tests for the new
> syscalls).  Would you prefer a new pair of patches or I update this set?

It doesn't matter much.  I guess a full update will be more convenient
at your end.


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Subject: Re: [PATCH V3 3/5] mm: mlock: Introduce VM_LOCKONFAULT and add
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On Tue,  7 Jul 2015 13:03:41 -0400
Eric B Munson <emunson@akamai.com> wrote:

> This patch introduces the ability to request that pages are not
> pre-faulted, but are placed on the unevictable LRU when they are finally
> faulted in.  This can be done area at a time via the
> mlock2(MLOCK_ONFAULT) or the mlockall(MCL_ONFAULT) system calls.  These
> calls can be undone via munlock2(MLOCK_ONFAULT) or
> munlockall2(MCL_ONFAULT).

Quick, possibly dumb question: I've been beating my head against these for
a little bit, and I can't figure out what's supposed to happen in this
case:

	mlock2(addr, len, MLOCK_ONFAULT);
	munlock2(addr, len, MLOCK_LOCKED);

It looks to me like it will clear VM_LOCKED without actually unlocking any
pages.  Is that the intended result?

Thanks,

jon

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On Wed, 08 Jul 2015, Jonathan Corbet wrote:

> On Tue,  7 Jul 2015 13:03:41 -0400
> Eric B Munson <emunson@akamai.com> wrote:
>=20
> > This patch introduces the ability to request that pages are not
> > pre-faulted, but are placed on the unevictable LRU when they are finally
> > faulted in.  This can be done area at a time via the
> > mlock2(MLOCK_ONFAULT) or the mlockall(MCL_ONFAULT) system calls.  These
> > calls can be undone via munlock2(MLOCK_ONFAULT) or
> > munlockall2(MCL_ONFAULT).
>=20
> Quick, possibly dumb question: I've been beating my head against these for
> a little bit, and I can't figure out what's supposed to happen in this
> case:
>=20
> 	mlock2(addr, len, MLOCK_ONFAULT);
> 	munlock2(addr, len, MLOCK_LOCKED);
>=20
> It looks to me like it will clear VM_LOCKED without actually unlocking any
> pages.  Is that the intended result?

This is not quite right, what happens when you call munlock2(addr, len,
MLOCK_LOCKED); is we call apply_vma_flags(addr, len, VM_LOCKED, false).
The false argument means that we intend to clear the specified flags.
Here is the relevant snippet:
=2E..
                newflags =3D vma->vm_flags;
                if (add_flags) {
                        newflags &=3D ~(VM_LOCKED | VM_LOCKONFAULT);
                        newflags |=3D flags;
                } else {
                        newflags &=3D ~flags;
                }
=2E..

Note that when we are adding flags, we first clear both VM_LOCKED and
VM_LOCKONFAULT.  This was done to match the behavior found in
mlockall().  When we are remove flags, we simply clear the specified
flag(s).

So in your example the state of the VMAs covered by addr and len would
remain unchanged.

It sounds like apply_vma_flags() needs a comment covering this topic, I
will include that in the set I am working on now.

Eric

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From - Thu Nov 08 21:37:37 2018
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Subject: Re: [PATCH V3 3/5] mm: mlock: Introduce VM_LOCKONFAULT and add
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On Wed, 8 Jul 2015 16:34:56 -0400
Eric B Munson <emunson@akamai.com> wrote:

> > Quick, possibly dumb question: I've been beating my head against these for
> > a little bit, and I can't figure out what's supposed to happen in this
> > case:
> > 
> > 	mlock2(addr, len, MLOCK_ONFAULT);
> > 	munlock2(addr, len, MLOCK_LOCKED);
> > 
> > It looks to me like it will clear VM_LOCKED without actually unlocking any
> > pages.  Is that the intended result?  
> 
> This is not quite right, what happens when you call munlock2(addr, len,
> MLOCK_LOCKED); is we call apply_vma_flags(addr, len, VM_LOCKED, false).

>From your explanation, it looks like what I said *was* right...what I was
missing was the fact that VM_LOCKED isn't set in the first place.  So that
call would be a no-op, clearing a flag that's already cleared.

One other question...if I call mlock2(MLOCK_ONFAULT) on a range that
already has resident pages, I believe that those pages will not be locked
until they are reclaimed and faulted back in again, right?  I suspect that
could be surprising to users.

Thanks,

jon
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Attention Pls,

I am writing you with regards to your protracted and stalled funds transfer from the U.K. and would urge you to accord this correspondence your full indulgence and attention, as the authenticity and difference would be evident if you do so.

As a freelance, independent External Audit expert assisting a private financial institution here in Britain in all aspects of their work, your transfer file came to my attention just this morning, and I was compelled to take special interest in it owing to its peculiar history of procedural inconsistencies. Obviously all the persons you assigned to process your transfer have proved to be incompetent. Simply put it that they have given room to some management of the Bank to try and smuggle your fund through a non-existent back door.

My intention is to quickly reactivate and sort out your transfer without any distraction through a simple, transparent and authoritative means where you will not be required to pay any unauthorized fees. You are forbidden to preempt anyone of this contact and I await your response at your earliest convenience.

Thank you.

Sincerely,
Adam Witkover
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From - Thu Nov 08 21:37:37 2018
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Subject: Re: [PATCH V3 3/5] mm: mlock: Introduce VM_LOCKONFAULT and add mlock
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On Wed, 08 Jul 2015, Jonathan Corbet wrote:

> On Wed, 8 Jul 2015 16:34:56 -0400
> Eric B Munson <emunson@akamai.com> wrote:
>=20
> > > Quick, possibly dumb question: I've been beating my head against thes=
e for
> > > a little bit, and I can't figure out what's supposed to happen in this
> > > case:
> > >=20
> > > 	mlock2(addr, len, MLOCK_ONFAULT);
> > > 	munlock2(addr, len, MLOCK_LOCKED);
> > >=20
> > > It looks to me like it will clear VM_LOCKED without actually unlockin=
g any
> > > pages.  Is that the intended result? =20
> >=20
> > This is not quite right, what happens when you call munlock2(addr, len,
> > MLOCK_LOCKED); is we call apply_vma_flags(addr, len, VM_LOCKED, false).
>=20
> From your explanation, it looks like what I said *was* right...what I was
> missing was the fact that VM_LOCKED isn't set in the first place.  So that
> call would be a no-op, clearing a flag that's already cleared.

Sorry, I misread the original.  You are correct with the addition that
the call to munlock2(MLOCK_LOCKED) is a noop in this case.

>=20
> One other question...if I call mlock2(MLOCK_ONFAULT) on a range that
> already has resident pages, I believe that those pages will not be locked
> until they are reclaimed and faulted back in again, right?  I suspect that
> could be surprising to users.

That is the case.  I am looking into what it would take to find only the
present pages in a range and lock them, if that is the behavior that is
preferred I can include it in the updated series.

>=20
> Thanks,
>=20
> jon

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From - Thu Nov 08 21:37:37 2018
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From: Jonathan Corbet <corbet@lwn.net>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: Re: [PATCH V3 3/5] mm: mlock: Introduce VM_LOCKONFAULT and add
 mlock flags to enable it
Date: Fri, 10 Jul 2015 10:11:18 -0600
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To: Eric B Munson <emunson@akamai.com>
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On Thu, 9 Jul 2015 14:46:35 -0400
Eric B Munson <emunson@akamai.com> wrote:

> > One other question...if I call mlock2(MLOCK_ONFAULT) on a range that
> > already has resident pages, I believe that those pages will not be locked
> > until they are reclaimed and faulted back in again, right?  I suspect that
> > could be surprising to users.  
> 
> That is the case.  I am looking into what it would take to find only the
> present pages in a range and lock them, if that is the behavior that is
> preferred I can include it in the updated series.

For whatever my $0.02 is worth, I think that should be done.  Otherwise
the mlock2() interface is essentially nondeterministic; you'll never
really know if a specific page is locked or not.

Thanks,

jon
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From - Thu Nov 08 21:37:37 2018
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From: Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.kernel.api,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH V3 3/5] mm: mlock: Introduce VM_LOCKONFAULT and add mlock
 flags to enable it
Date: Fri, 10 Jul 2015 12:19:48 -0400
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To: Jonathan Corbet <corbet-T1hC0tSOHrs@public.gmane.org>
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On Fri, 10 Jul 2015, Jonathan Corbet wrote:

> On Thu, 9 Jul 2015 14:46:35 -0400
> Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org> wrote:
>=20
> > > One other question...if I call mlock2(MLOCK_ONFAULT) on a range that
> > > already has resident pages, I believe that those pages will not be lo=
cked
> > > until they are reclaimed and faulted back in again, right?  I suspect=
 that
> > > could be surprising to users. =20
> >=20
> > That is the case.  I am looking into what it would take to find only the
> > present pages in a range and lock them, if that is the behavior that is
> > preferred I can include it in the updated series.
>=20
> For whatever my $0.02 is worth, I think that should be done.  Otherwise
> the mlock2() interface is essentially nondeterministic; you'll never
> really know if a specific page is locked or not.
>=20
> Thanks,
>=20
> jon

Okay, I likely won't have the new set out today then.  This change is
more invasive.  IIUC, I need an equivalent to __get_user_page() skips
pages which are not present instead of faulting in and the call chain to
get to it.  Unless there is an easier way that I am missing.

Eric

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From - Thu Nov 08 21:37:37 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc fixes for v4.2
Date: Fri, 10 Jul 2015 23:04:08 +0200
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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Hi Linus,

please pull the latest fixes for the parisc architecture for v4.2-rc2 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.2-1

We have one important patch from Dave Anglin and myself which fixes PTE/TLB
race conditions which caused random segmentation faults on our debian buildd
servers, and one patch from Alex Ivanov which speeds up the graphical text
console on the STI framebuffer driver.

Thanks,
Helge

----------------------------------------------------------------
Alex Ivanov (1):
      stifb: Implement hardware accelerated copyarea

John David Anglin (1):
      parisc: Fix some PTE/TLB race conditions and optimize __flush_tlb_range based on timing results

 arch/parisc/include/asm/pgtable.h  |  55 +++++++++----
 arch/parisc/include/asm/tlbflush.h |  53 ++++++------
 arch/parisc/kernel/cache.c         | 105 +++++++++++++++---------
 arch/parisc/kernel/entry.S         | 163 ++++++++++++++++++-------------------
 arch/parisc/kernel/traps.c         |   4 -
 drivers/video/fbdev/stifb.c        |  40 ++++++++-
 6 files changed, 250 insertions(+), 170 deletions(-)
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Subject: Re: Bug#706050: logrotate: spurious "error: getting file ACL" messages
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On 2013-04-24, at 7:36 AM, John David Anglin wrote:

> On 24-Apr-13, at 7:01 AM, Paul Martin wrote:
> 
>> The test is
>> 
>>       if ((prev_acl = acl_get_fd(fdcurr)) == NULL) {
>>               if (errno != ENOTSUP) {
>>                       message(MESS_ERROR, "getting file ACL %s: %s\n",
>>                               currLog, strerror(errno));
>> 
>> 
>> and your kernel is responding with ENOSYS instead.  This contradicts
>> the manpage acl_get_fd(3):
>> 
>>    [ENOTSUP]          The file system on which the file identified by fd is
>>                       located does not support ACLs, or ACLs are disabled.
> 
> Thanks, forwarded your response to the parisc-linux list for review.


The spurious mail  has come back with logrotate 3.8.7-2.  File system is ext4:
/dev/sdc6 on /var type ext4 (rw,relatime,data=ordered)

/etc/cron.daily/logrotate:
error: getting file ACL /var/log/apt/term.log: Operation not supported
error: getting file ACL /var/log/apt/history.log: Operation not supported
...

Dave
--
John David Anglin	dave.anglin@bell.net



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Subject: Re: Bug#706050: logrotate: spurious "error: getting file ACL"
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On Sat, 2015-07-11 at 11:51 -0400, John David Anglin wrote:
> On 2013-04-24, at 7:36 AM, John David Anglin wrote:
> 
> > On 24-Apr-13, at 7:01 AM, Paul Martin wrote:
> > 
> >> The test is
> >> 
> >>       if ((prev_acl = acl_get_fd(fdcurr)) == NULL) {
> >>               if (errno != ENOTSUP) {
> >>                       message(MESS_ERROR, "getting file ACL %s: %s\n",
> >>                               currLog, strerror(errno));
> >> 
> >> 
> >> and your kernel is responding with ENOSYS instead.  This contradicts
> >> the manpage acl_get_fd(3):
> >> 
> >>    [ENOTSUP]          The file system on which the file identified by fd is
> >>                       located does not support ACLs, or ACLs are disabled.
> > 
> > Thanks, forwarded your response to the parisc-linux list for review.
> 
> 
> The spurious mail  has come back with logrotate 3.8.7-2.  File system is ext4:
> /dev/sdc6 on /var type ext4 (rw,relatime,data=ordered)
> 
> /etc/cron.daily/logrotate:
> error: getting file ACL /var/log/apt/term.log: Operation not supported
> error: getting file ACL /var/log/apt/history.log: Operation not supported
> ...

It looks like you built your kernel without CONFIG_EXT4_FS_POSIX_ACL.
The warning is harmless because ACLs aren't required for logs ... it's
merely trying to duplicate the ACL on the rotated file.

James


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From: Bjorn Helgaas <bhelgaas@google.com>
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Subject: [PATCH 0/3] IRQ trivial clarifications
Date: Sun, 12 Jul 2015 17:01:45 -0500
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To: Thomas Gleixner <tglx@linutronix.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/25824>

These don't fix anything at all.  But they might make code understanding
and debugging slightly easier.

---

Bjorn Helgaas (3):
      x86, irq: Rename VECTOR_UNDEFINED and VECTOR_RETRIGGERED to IRQ_*
      x86, irq: Clarify "No irq handler" message
      IRQ: Print "unexpected IRQ" messages consistently across architectures


 arch/alpha/kernel/irq.c            |    2 +-
 arch/blackfin/kernel/irqchip.c     |    2 +-
 arch/c6x/kernel/irq.c              |    2 +-
 arch/ia64/kernel/irq.c             |    2 +-
 arch/m68k/include/asm/hardirq.h    |    2 +-
 arch/mips/kernel/irq.c             |    2 +-
 arch/mn10300/kernel/irq.c          |    2 +-
 arch/parisc/include/asm/hardirq.h  |    2 +-
 arch/powerpc/include/asm/hardirq.h |    2 +-
 arch/s390/include/asm/hardirq.h    |    2 +-
 arch/sh/kernel/irq.c               |    2 +-
 arch/tile/kernel/irq.c             |    2 +-
 arch/x86/include/asm/hw_irq.h      |    4 ++--
 arch/x86/kernel/apic/vector.c      |   14 +++++++-------
 arch/x86/kernel/irq.c              |   19 +++++++++----------
 arch/x86/kernel/irqinit.c          |    4 ++--
 include/asm-generic/hardirq.h      |    2 +-
 17 files changed, 33 insertions(+), 34 deletions(-)
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From - Thu Nov 08 21:37:37 2018
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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 1/3] x86,
 irq: Rename VECTOR_UNDEFINED and VECTOR_RETRIGGERED to IRQ_*
Date: Sun, 12 Jul 2015 17:01:54 -0500
Lines: 163
Approved: news@gmane.org
Message-ID: <20150712220154.7166.48327.stgit@bhelgaas-glaptop2.roam.corp.google.com>
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Cc: linux-arch@vger.kernel.org, linux-mips@linux-mips.org,
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To: Thomas Gleixner <tglx@linutronix.de>
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Xref: news.gmane.org gmane.linux.kernel:1994367 gmane.linux.kernel.cross-arch:28343 gmane.linux.ports.mips.general:49351 gmane.linux.ports.ia64:25574 gmane.linux.ports.parisc:25825 gmane.linux.ports.sh.devel:47146 gmane.linux.ports.alpha:3188 gmane.linux.ports.ppc64.devel:115130
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1994367>

The per-cpu vector_irq[] table is indexed by CPU vector numbers, and each
entry contains an IRQ number.

Rename the special values VECTOR_UNDEFINED and VECTOR_RETRIGGERED to
IRQ_UNDEFINED and IRQ_RETRIGGERED to indicate that they are in the IRQ
number space, not the CPU vector number space.

No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/x86/include/asm/hw_irq.h |    4 ++--
 arch/x86/kernel/apic/vector.c |   14 +++++++-------
 arch/x86/kernel/irq.c         |   12 ++++++------
 arch/x86/kernel/irqinit.c     |    4 ++--
 4 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index 6615032..b51a1ca 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -182,8 +182,8 @@ extern char irq_entries_start[];
 #define trace_irq_entries_start irq_entries_start
 #endif
 
-#define VECTOR_UNDEFINED	(-1)
-#define VECTOR_RETRIGGERED	(-2)
+#define IRQ_UNDEFINED	(-1)
+#define IRQ_RETRIGGERED	(-2)
 
 typedef int vector_irq_t[NR_VECTORS];
 DECLARE_PER_CPU(vector_irq_t, vector_irq);
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 28eba2d..8ae84b4 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -170,7 +170,7 @@ next:
 
 		for_each_cpu_and(new_cpu, vector_cpumask, cpu_online_mask) {
 			if (per_cpu(vector_irq, new_cpu)[vector] >
-			    VECTOR_UNDEFINED)
+			    IRQ_UNDEFINED)
 				goto next;
 		}
 		/* Found one! */
@@ -232,7 +232,7 @@ static void clear_irq_vector(int irq, struct apic_chip_data *data)
 
 	vector = data->cfg.vector;
 	for_each_cpu_and(cpu, data->domain, cpu_online_mask)
-		per_cpu(vector_irq, cpu)[vector] = VECTOR_UNDEFINED;
+		per_cpu(vector_irq, cpu)[vector] = IRQ_UNDEFINED;
 
 	data->cfg.vector = 0;
 	cpumask_clear(data->domain);
@@ -247,7 +247,7 @@ static void clear_irq_vector(int irq, struct apic_chip_data *data)
 		     vector++) {
 			if (per_cpu(vector_irq, cpu)[vector] != irq)
 				continue;
-			per_cpu(vector_irq, cpu)[vector] = VECTOR_UNDEFINED;
+			per_cpu(vector_irq, cpu)[vector] = IRQ_UNDEFINED;
 			break;
 		}
 	}
@@ -429,12 +429,12 @@ static void __setup_vector_irq(int cpu)
 	/* Mark the free vectors */
 	for (vector = 0; vector < NR_VECTORS; ++vector) {
 		irq = per_cpu(vector_irq, cpu)[vector];
-		if (irq <= VECTOR_UNDEFINED)
+		if (irq <= IRQ_UNDEFINED)
 			continue;
 
 		data = apic_chip_data(irq_get_irq_data(irq));
 		if (!cpumask_test_cpu(cpu, data->domain))
-			per_cpu(vector_irq, cpu)[vector] = VECTOR_UNDEFINED;
+			per_cpu(vector_irq, cpu)[vector] = IRQ_UNDEFINED;
 	}
 	raw_spin_unlock(&vector_lock);
 }
@@ -553,7 +553,7 @@ asmlinkage __visible void smp_irq_move_cleanup_interrupt(void)
 
 		irq = __this_cpu_read(vector_irq[vector]);
 
-		if (irq <= VECTOR_UNDEFINED)
+		if (irq <= IRQ_UNDEFINED)
 			continue;
 
 		desc = irq_to_desc(irq);
@@ -589,7 +589,7 @@ asmlinkage __visible void smp_irq_move_cleanup_interrupt(void)
 			apic->send_IPI_self(IRQ_MOVE_CLEANUP_VECTOR);
 			goto unlock;
 		}
-		__this_cpu_write(vector_irq[vector], VECTOR_UNDEFINED);
+		__this_cpu_write(vector_irq[vector], IRQ_UNDEFINED);
 unlock:
 		raw_spin_unlock(&desc->lock);
 	}
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 88b36648..2949c6e 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -223,12 +223,12 @@ __visible unsigned int __irq_entry do_IRQ(struct pt_regs *regs)
 	if (!handle_irq(irq, regs)) {
 		ack_APIC_irq();
 
-		if (irq != VECTOR_RETRIGGERED) {
+		if (irq != IRQ_RETRIGGERED) {
 			pr_emerg_ratelimited("%s: %d.%d No irq handler for vector (irq %d)\n",
 					     __func__, smp_processor_id(),
 					     vector, irq);
 		} else {
-			__this_cpu_write(vector_irq[vector], VECTOR_UNDEFINED);
+			__this_cpu_write(vector_irq[vector], IRQ_UNDEFINED);
 		}
 	}
 
@@ -489,7 +489,7 @@ void fixup_irqs(void)
 	for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS; vector++) {
 		unsigned int irr;
 
-		if (__this_cpu_read(vector_irq[vector]) <= VECTOR_UNDEFINED)
+		if (__this_cpu_read(vector_irq[vector]) <= IRQ_UNDEFINED)
 			continue;
 
 		irr = apic_read(APIC_IRR + (vector / 32 * 0x10));
@@ -502,12 +502,12 @@ void fixup_irqs(void)
 			raw_spin_lock(&desc->lock);
 			if (chip->irq_retrigger) {
 				chip->irq_retrigger(data);
-				__this_cpu_write(vector_irq[vector], VECTOR_RETRIGGERED);
+				__this_cpu_write(vector_irq[vector], IRQ_RETRIGGERED);
 			}
 			raw_spin_unlock(&desc->lock);
 		}
-		if (__this_cpu_read(vector_irq[vector]) != VECTOR_RETRIGGERED)
-			__this_cpu_write(vector_irq[vector], VECTOR_UNDEFINED);
+		if (__this_cpu_read(vector_irq[vector]) != IRQ_RETRIGGERED)
+			__this_cpu_write(vector_irq[vector], IRQ_UNDEFINED);
 	}
 }
 #endif
diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index a3a5e15..fc1822d 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -52,7 +52,7 @@ static struct irqaction irq2 = {
 };
 
 DEFINE_PER_CPU(vector_irq_t, vector_irq) = {
-	[0 ... NR_VECTORS - 1] = VECTOR_UNDEFINED,
+	[0 ... NR_VECTORS - 1] = IRQ_UNDEFINED,
 };
 
 int vector_used_by_percpu_irq(unsigned int vector)
@@ -60,7 +60,7 @@ int vector_used_by_percpu_irq(unsigned int vector)
 	int cpu;
 
 	for_each_online_cpu(cpu) {
-		if (per_cpu(vector_irq, cpu)[vector] > VECTOR_UNDEFINED)
+		if (per_cpu(vector_irq, cpu)[vector] > IRQ_UNDEFINED)
 			return 1;
 	}
 


From - Thu Nov 08 21:37:37 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 2/3] x86, irq: Clarify "No irq handler" message
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To: Thomas Gleixner <tglx@linutronix.de>
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Previously we printed, e.g.,

  do_IRQ: 0.242 No irq handler for vector (irq -1)

There's no clue about what "0.242" means, and the IRQ number, which is the
important generic information used by drivers and /proc/interrupts, is
almost an afterthought.

Change the format to this:

  No handler for IRQ -1 (CPU 0 vector 0xf2)

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/x86/kernel/irq.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 2949c6e..3c6b069 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -224,9 +224,8 @@ __visible unsigned int __irq_entry do_IRQ(struct pt_regs *regs)
 		ack_APIC_irq();
 
 		if (irq != IRQ_RETRIGGERED) {
-			pr_emerg_ratelimited("%s: %d.%d No irq handler for vector (irq %d)\n",
-					     __func__, smp_processor_id(),
-					     vector, irq);
+			pr_emerg_ratelimited("No handler for IRQ %d (CPU %d vector %#x)\n",
+					     irq, smp_processor_id(), vector);
 		} else {
 			__this_cpu_write(vector_irq[vector], IRQ_UNDEFINED);
 		}

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From - Thu Nov 08 21:37:37 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 3/3] IRQ: Print "unexpected IRQ" messages consistently
 across architectures
Date: Sun, 12 Jul 2015 17:02:11 -0500
Lines: 215
Approved: news@gmane.org
Message-ID: <20150712220211.7166.42035.stgit@bhelgaas-glaptop2.roam.corp.google.com>
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	linuxppc-dev@lists.ozlabs.org
To: Thomas Gleixner <tglx@linutronix.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/47148>

Many architectures use a variant of "unexpected IRQ trap at vector %x" to
log unexpected IRQs.  This is confusing because (a) it prints the Linux IRQ
number, but "vector" more often refers to a CPU vector number, and (b) it
prints the IRQ number in hex with no base indication, while Linux IRQ
numbers are usually printed in decimal.

Print the same text ("unexpected IRQ %d") across all architectures.

No functional change other than the output text.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/alpha/kernel/irq.c            |    2 +-
 arch/blackfin/kernel/irqchip.c     |    2 +-
 arch/c6x/kernel/irq.c              |    2 +-
 arch/ia64/kernel/irq.c             |    2 +-
 arch/m68k/include/asm/hardirq.h    |    2 +-
 arch/mips/kernel/irq.c             |    2 +-
 arch/mn10300/kernel/irq.c          |    2 +-
 arch/parisc/include/asm/hardirq.h  |    2 +-
 arch/powerpc/include/asm/hardirq.h |    2 +-
 arch/s390/include/asm/hardirq.h    |    2 +-
 arch/sh/kernel/irq.c               |    2 +-
 arch/tile/kernel/irq.c             |    2 +-
 arch/x86/kernel/irq.c              |    2 +-
 include/asm-generic/hardirq.h      |    2 +-
 14 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index 51f2c86..9acdc14 100644
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -34,7 +34,7 @@ DEFINE_PER_CPU(unsigned long, irq_pmi_count);
 void ack_bad_irq(unsigned int irq)
 {
 	irq_err_count++;
-	printk(KERN_CRIT "Unexpected IRQ trap at vector %u\n", irq);
+	printk(KERN_CRIT "Unexpected IRQ %d\n", irq);
 }
 
 #ifdef CONFIG_SMP 
diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
index 0ba2576..608741e 100644
--- a/arch/blackfin/kernel/irqchip.c
+++ b/arch/blackfin/kernel/irqchip.c
@@ -20,7 +20,7 @@ static atomic_t irq_err_count;
 void ack_bad_irq(unsigned int irq)
 {
 	atomic_inc(&irq_err_count);
-	printk(KERN_ERR "IRQ: spurious interrupt %d\n", irq);
+	printk(KERN_ERR "unexpected IRQ %d\n", irq);
 }
 
 static struct irq_desc bad_irq_desc = {
diff --git a/arch/c6x/kernel/irq.c b/arch/c6x/kernel/irq.c
index 247e0eb..cd7fb55 100644
--- a/arch/c6x/kernel/irq.c
+++ b/arch/c6x/kernel/irq.c
@@ -120,7 +120,7 @@ void __init init_IRQ(void)
 
 void ack_bad_irq(int irq)
 {
-	printk(KERN_ERR "IRQ: spurious interrupt %d\n", irq);
+	printk(KERN_ERR "unexpected IRQ %d\n", irq);
 	irq_err_count++;
 }
 
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index 812a1e6..b198c69 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -31,7 +31,7 @@
  */
 void ack_bad_irq(unsigned int irq)
 {
-	printk(KERN_ERR "Unexpected irq vector 0x%x on CPU %u!\n", irq, smp_processor_id());
+	printk(KERN_ERR "unexpected IRQ %d on CPU %u!\n", irq, smp_processor_id());
 }
 
 #ifdef CONFIG_IA64_GENERIC
diff --git a/arch/m68k/include/asm/hardirq.h b/arch/m68k/include/asm/hardirq.h
index 6c61852..5f0fe98 100644
--- a/arch/m68k/include/asm/hardirq.h
+++ b/arch/m68k/include/asm/hardirq.h
@@ -9,7 +9,7 @@
 
 static inline void ack_bad_irq(unsigned int irq)
 {
-	pr_crit("unexpected IRQ trap at vector %02x\n", irq);
+	pr_crit("unexpected IRQ %d\n", irq);
 }
 
 /* entry.S is sensitive to the offsets of these fields */
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index 8eb5af8..f6b9ce9 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -31,7 +31,7 @@
  */
 void ack_bad_irq(unsigned int irq)
 {
-	printk("unexpected IRQ # %d\n", irq);
+	printk("unexpected IRQ %d\n", irq);
 }
 
 atomic_t irq_err_count;
diff --git a/arch/mn10300/kernel/irq.c b/arch/mn10300/kernel/irq.c
index 480de70..c7b780d 100644
--- a/arch/mn10300/kernel/irq.c
+++ b/arch/mn10300/kernel/irq.c
@@ -197,7 +197,7 @@ static struct irq_chip mn10300_cpu_pic_edge = {
  */
 void ack_bad_irq(int irq)
 {
-	printk(KERN_WARNING "unexpected IRQ trap at vector %02x\n", irq);
+	printk(KERN_WARNING "unexpected IRQ %d\n", irq);
 }
 
 /*
diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index 9b3bd03..c093c4f 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -41,6 +41,6 @@ DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
 		this_cpu_write(irq_stat.__softirq_pending, (x))
 #define or_softirq_pending(x)	this_cpu_or(irq_stat.__softirq_pending, (x))
 
-#define ack_bad_irq(irq) WARN(1, "unexpected IRQ trap at vector %02x\n", irq)
+#define ack_bad_irq(irq) WARN(1, "unexpected IRQ %d\n", irq)
 
 #endif /* _PARISC_HARDIRQ_H */
diff --git a/arch/powerpc/include/asm/hardirq.h b/arch/powerpc/include/asm/hardirq.h
index 8add8b8..aa8ebbb 100644
--- a/arch/powerpc/include/asm/hardirq.h
+++ b/arch/powerpc/include/asm/hardirq.h
@@ -30,7 +30,7 @@ DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
 
 static inline void ack_bad_irq(unsigned int irq)
 {
-	printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
+	printk(KERN_CRIT "unexpected IRQ %d\n", irq);
 }
 
 extern u64 arch_irq_stat_cpu(unsigned int cpu);
diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h
index b7eabaa..08eeacd 100644
--- a/arch/s390/include/asm/hardirq.h
+++ b/arch/s390/include/asm/hardirq.h
@@ -20,7 +20,7 @@
 
 static inline void ack_bad_irq(unsigned int irq)
 {
-	printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
+	printk(KERN_CRIT "unexpected IRQ %d\n", irq);
 }
 
 #endif /* __ASM_HARDIRQ_H */
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index eb10ff8..093e434 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -30,7 +30,7 @@ atomic_t irq_err_count;
 void ack_bad_irq(unsigned int irq)
 {
 	atomic_inc(&irq_err_count);
-	printk("unexpected IRQ trap at vector %02x\n", irq);
+	printk("unexpected IRQ %d\n", irq);
 }
 
 #if defined(CONFIG_PROC_FS)
diff --git a/arch/tile/kernel/irq.c b/arch/tile/kernel/irq.c
index 22044fc..c8e4f88 100644
--- a/arch/tile/kernel/irq.c
+++ b/arch/tile/kernel/irq.c
@@ -250,7 +250,7 @@ EXPORT_SYMBOL(tile_irq_activate);
 
 void ack_bad_irq(unsigned int irq)
 {
-	pr_err("unexpected IRQ trap at vector %02x\n", irq);
+	pr_err("unexpected IRQ %d\n", irq);
 }
 
 /*
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 3c6b069..a0d46d2 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -40,7 +40,7 @@ void (*x86_platform_ipi_callback)(void) = NULL;
 void ack_bad_irq(unsigned int irq)
 {
 	if (printk_ratelimit())
-		pr_err("unexpected IRQ trap at vector %02x\n", irq);
+		pr_err("unexpected IRQ %d\n", irq);
 
 	/*
 	 * Currently unexpected vectors happen only on SMP and APIC.
diff --git a/include/asm-generic/hardirq.h b/include/asm-generic/hardirq.h
index 04d0a97..516ff5f 100644
--- a/include/asm-generic/hardirq.h
+++ b/include/asm-generic/hardirq.h
@@ -14,7 +14,7 @@ typedef struct {
 #ifndef ack_bad_irq
 static inline void ack_bad_irq(unsigned int irq)
 {
-	printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
+	printk(KERN_CRIT "unexpected IRQ %d\n", irq);
 }
 #endif
 

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From - Thu Nov 08 21:37:37 2018
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From: Michael Ellerman <mpe@ellerman.id.au>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [3/3] IRQ: Print "unexpected IRQ" messages consistently across architectures
Date: Mon, 13 Jul 2015 13:23:03 +1000 (AEST)
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To: Bjorn Helgaas <bhelgaas@google.com>,
	Thomas Gleixner <tglx@linutronix.de>
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On Sun, 2015-12-07 at 22:02:11 UTC, Bjorn Helgaas wrote:
> Many architectures use a variant of "unexpected IRQ trap at vector %x" to
> log unexpected IRQs.  This is confusing because (a) it prints the Linux IRQ
> number, but "vector" more often refers to a CPU vector number, and (b) it
> prints the IRQ number in hex with no base indication, while Linux IRQ
> numbers are usually printed in decimal.
> 
> Print the same text ("unexpected IRQ %d") across all architectures.
> 
> No functional change other than the output text.

There's already a fallback version in asm-generic, so shouldn't you instead
just delete all the versions that are identical to that?

eg. on powerpc we have:

>  static inline void ack_bad_irq(unsigned int irq)
>  {
> -	printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
> +	printk(KERN_CRIT "unexpected IRQ %d\n", irq);
>  }

And the generic version is:

>  #ifndef ack_bad_irq
>  static inline void ack_bad_irq(unsigned int irq)
>  {
> -	printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
> +	printk(KERN_CRIT "unexpected IRQ %d\n", irq);
>  }
>  #endif

So we can just delete the powerpc version?

cheers

From - Thu Nov 08 21:37:37 2018
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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 3/3] IRQ: Print "unexpected IRQ" messages consistently
 across architectures
Date: Mon, 13 Jul 2015 09:14:42 +0200
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To: Bjorn Helgaas <bhelgaas@google.com>
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On Mon, Jul 13, 2015 at 12:02 AM, Bjorn Helgaas <bhelgaas@google.com> wrote:
> Many architectures use a variant of "unexpected IRQ trap at vector %x" to
> log unexpected IRQs.  This is confusing because (a) it prints the Linux IRQ
> number, but "vector" more often refers to a CPU vector number, and (b) it
> prints the IRQ number in hex with no base indication, while Linux IRQ
> numbers are usually printed in decimal.
>
> Print the same text ("unexpected IRQ %d") across all architectures.
>
> No functional change other than the output text.
>
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
> ---

Thanks!

>  arch/m68k/include/asm/hardirq.h    |    2 +-

For m68k:
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

And it looks like m68k can switch to the asm-generic version afterwards...

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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From - Thu Nov 08 21:37:38 2018
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From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.janitors
Subject: [PATCH] parisc: mm: Fix a memory leak related to pmd not attached to the pgd
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Commit 0e0da48dee8d ("parisc: mm: don't count preallocated pmds")
introduced a memory leak.

After this commit, the 'return' statement in pmd_free is executed in all
cases. Even for pmd that are not attached to the pgd.
So 'free_pages' can never be called anymore, leading to a memory leak.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
This patch is *untested* as I don't have the hardware to test it.

This is just a guess based on the indentation, the comment in the code
and the commit log.
---
 arch/parisc/include/asm/pgalloc.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index 3a08eae..f66d3738 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -72,7 +72,7 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 
 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 {
-	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
+	if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED) {
 		/*
 		 * This is the permanent pmd attached to the pgd;
 		 * cannot free it.
@@ -81,6 +81,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 		 */
 		mm_inc_nr_pmds(mm);
 		return;
+	}
 	free_pages((unsigned long)pmd, PMD_ORDER);
 }
 
-- 
2.1.4


From - Thu Nov 08 21:37:38 2018
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From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.janitors
Subject: RE: [PATCH] parisc: mm: Fix a memory leak related to pmd not attached
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Christophe JAILLET wrote:
> Commit 0e0da48dee8d ("parisc: mm: don't count preallocated pmds")
> introduced a memory leak.
> 
> After this commit, the 'return' statement in pmd_free is executed in all
> cases. Even for pmd that are not attached to the pgd.
> So 'free_pages' can never be called anymore, leading to a memory leak.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>

> ---
> This patch is *untested* as I don't have the hardware to test it.
> 
> This is just a guess based on the indentation, the comment in the code
> and the commit log.
> ---
>  arch/parisc/include/asm/pgalloc.h | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
> index 3a08eae..f66d3738 100644
> --- a/arch/parisc/include/asm/pgalloc.h
> +++ b/arch/parisc/include/asm/pgalloc.h
> @@ -72,7 +72,7 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
>  
>  static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>  {
> -	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
> +	if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED) {
>  		/*
>  		 * This is the permanent pmd attached to the pgd;
>  		 * cannot free it.
> @@ -81,6 +81,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>  		 */
>  		mm_inc_nr_pmds(mm);
>  		return;
> +	}
>  	free_pages((unsigned long)pmd, PMD_ORDER);
>  }
>  
> -- 
> 2.1.4
> 
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From - Thu Nov 08 21:37:38 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.janitors
Subject: Re: [PATCH] parisc: mm: Fix a memory leak related to pmd not attached
 to the pgd
Date: Mon, 13 Jul 2015 08:48:49 -0400 (EDT)
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On Mon, 13 Jul 2015, Christophe JAILLET wrote:

> Commit 0e0da48dee8d ("parisc: mm: don't count preallocated pmds")
> introduced a memory leak.
> 
> After this commit, the 'return' statement in pmd_free is executed in all
> cases. Even for pmd that are not attached to the pgd.
> So 'free_pages' can never be called anymore, leading to a memory leak.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

Acked-by: Mikulas Patocka <mpatocka@redhat.com>

also add this, so that it is backported to 4.0 and 4.2:
Cc: stable@vger.kernel.org	# 4.0+
Fixes: 0e0da48dee8d

> ---
> This patch is *untested* as I don't have the hardware to test it.
> 
> This is just a guess based on the indentation, the comment in the code
> and the commit log.
> ---
>  arch/parisc/include/asm/pgalloc.h | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
> index 3a08eae..f66d3738 100644
> --- a/arch/parisc/include/asm/pgalloc.h
> +++ b/arch/parisc/include/asm/pgalloc.h
> @@ -72,7 +72,7 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
>  
>  static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>  {
> -	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
> +	if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED) {
>  		/*
>  		 * This is the permanent pmd attached to the pgd;
>  		 * cannot free it.
> @@ -81,6 +81,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>  		 */
>  		mm_inc_nr_pmds(mm);
>  		return;
> +	}
>  	free_pages((unsigned long)pmd, PMD_ORDER);
>  }
>  
> -- 
> 2.1.4
> 
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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [3/3] IRQ: Print "unexpected IRQ" messages consistently across architectures
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To: Michael Ellerman <mpe@ellerman.id.au>
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On Sun, Jul 12, 2015 at 10:23 PM, Michael Ellerman <mpe@ellerman.id.au> wrote:
> On Sun, 2015-12-07 at 22:02:11 UTC, Bjorn Helgaas wrote:
>> Many architectures use a variant of "unexpected IRQ trap at vector %x" to
>> log unexpected IRQs.  This is confusing because (a) it prints the Linux IRQ
>> number, but "vector" more often refers to a CPU vector number, and (b) it
>> prints the IRQ number in hex with no base indication, while Linux IRQ
>> numbers are usually printed in decimal.
>>
>> Print the same text ("unexpected IRQ %d") across all architectures.
>>
>> No functional change other than the output text.
>
> There's already a fallback version in asm-generic, so shouldn't you instead
> just delete all the versions that are identical to that?
>
> eg. on powerpc we have:
>
>>  static inline void ack_bad_irq(unsigned int irq)
>>  {
>> -     printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
>> +     printk(KERN_CRIT "unexpected IRQ %d\n", irq);
>>  }
>
> And the generic version is:
>
>>  #ifndef ack_bad_irq
>>  static inline void ack_bad_irq(unsigned int irq)
>>  {
>> -     printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
>> +     printk(KERN_CRIT "unexpected IRQ %d\n", irq);
>>  }
>>  #endif
>
> So we can just delete the powerpc version?

Wow, I really didn't do my homework here.  Not only is there a generic
version already, but there's also print_irq_desc(), which prints way
more information than any of the ack_bad_irq() implementations.

I'll try again :)

Bjorn

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.janitors
Subject: Re: [PATCH] parisc: mm: Fix a memory leak related to pmd not attached
 to the pgd
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Hi Christophe,

On 13.07.2015 11:32, Christophe JAILLET wrote:
> Commit 0e0da48dee8d ("parisc: mm: don't count preallocated pmds")
> introduced a memory leak.
>
> After this commit, the 'return' statement in pmd_free is executed in all
> cases. Even for pmd that are not attached to the pgd.
> So 'free_pages' can never be called anymore, leading to a memory leak.

That's really great!!! Thanks for spotting this!

I assume this fixes the leak which killed our debian buildds with OOM
after an uptime of 1-4 days and which only happened since kernel 4.0.
Meelis Roos reported the issue already in this thread:
http://marc.info/?l=linux-parisc&m=142999113232154&w=2

> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

Acked-by: Helge Deller <deller@gmx.de>


Will this patch be pushed via linux-mm or another tree, if
not I can take it via the parisc tree?


Helge


> ---
> This patch is *untested* as I don't have the hardware to test it.
>
> This is just a guess based on the indentation, the comment in the code
> and the commit log.
> ---
>   arch/parisc/include/asm/pgalloc.h | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
> index 3a08eae..f66d3738 100644
> --- a/arch/parisc/include/asm/pgalloc.h
> +++ b/arch/parisc/include/asm/pgalloc.h
> @@ -72,7 +72,7 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
>
>   static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>   {
> -	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
> +	if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED) {
>   		/*
>   		 * This is the permanent pmd attached to the pgd;
>   		 * cannot free it.
> @@ -81,6 +81,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>   		 */
>   		mm_inc_nr_pmds(mm);
>   		return;
> +	}
>   	free_pages((unsigned long)pmd, PMD_ORDER);
>   }
>
>


From - Thu Nov 08 21:37:38 2018
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From: Dan Carpenter <dan.carpenter@oracle.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.janitors
Subject: Re: [PATCH] parisc: mm: Fix a memory leak related to pmd not
 attached to the pgd
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I assume you found this with Coccinelle?  Smatch can also find this bug
but you would need a cross compile environment set up.

regards,
dan carpenter

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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: [PATCH] parisc: mm: Fix a memory leak related to pmd not attached to the pgd
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Cc: linux-parisc List <linux-parisc@vger.kernel.org>,
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Sadly, it appears we are not out of the woods yet:

mx3210 login: Backtrace:
 [<000000004021c904>] free_hot_cold_page+0x234/0x250
 [<000000004021c974>] free_hot_cold_page_list+0x54/0x90
 [<0000000040224f28>] release_pages+0x308/0x3f0
 [<0000000040226ae8>] __pagevec_release+0x58/0x78
 [<00000000402287f4>] invalidate_mapping_pages+0x244/0x258
 [<000000004029c284>] inode_lru_isolate+0x1e4/0x2b0
 [<0000000040240f34>] __list_lru_walk_one.isra.4+0xc4/0x1c0
 [<00000000402411bc>] list_lru_walk_one+0x64/0x80
 [<000000004029cc2c>] prune_icache_sb+0x54/0x88
 [<000000004027c564>] super_cache_scan+0x2a4/0x308
 [<0000000040228d6c>] shrink_slab+0x34c/0x408
 [<000000004022d23c>] shrink_zone+0x2bc/0x2c8
 [<000000004022e0d4>] kswapd+0x6a4/0xb70
 [<00000000401a5e14>] kthread+0x144/0x178
 [<0000000040145020>] end_fault_vector+0x20/0x28
 [<0000000014281000>] 0x14281000


Kernel Fault: Code=15 regs=000000007c749020 (Addr=0000000000001841)
CPU: 2 PID: 286 Comm: kswapd2 Not tainted 4.0.8+ #1
task: 000000007f75f528 ti: 000000007c748000 task.ti: 000000007c748000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001110 Not tainted
r00-03  000000ff0806ff0e 0000000000000000 0000000040766a40 000000007c748f00
r04-07  00000000406eac70 00000000421d1540 0000000000000040 0000000040766940
r08-11  ffffffffffffff80 0000000000000013 0000000000200200 0000000000100100
r12-15  0000000000000001 ffffffffffffffff 00000000407fd980 00000000427ea580
r16-19  0000000000000013 00000000427ea5b0 0000000000000002 00000000427ea5a0
r20-23  000000007c748ff0 0000000040766a40 0000000000000020 0000000040766980
r24-27  00000000421d1560 0000000000001839 0000000000000000 00000000406eac70
r28-31  0000000000000000 0000000000000000 000000007c749020 0000000000000040
sr00-03  0000000000b45800 0000000001060800 0000000000000000 0000000000b45800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004021a11c 000000004021a120
 IIR: 0f3812d0    ISR: 0000000000000000  IOR: 0000000000001841
 CPU:        2   CR30: 000000007c748000 CR31: 572c033000297031
 ORIG_R28: 000000007c749210
 IAOQ[0]: free_pcppages_bulk+0x34c/0x470
 IAOQ[1]: free_pcppages_bulk+0x350/0x470
 RP(r2): 0x40766a40
Backtrace:
 [<000000004021c904>] free_hot_cold_page+0x234/0x250
 [<000000004021c974>] free_hot_cold_page_list+0x54/0x90
 [<0000000040224f28>] release_pages+0x308/0x3f0
 [<0000000040226ae8>] __pagevec_release+0x58/0x78
 [<00000000402287f4>] invalidate_mapping_pages+0x244/0x258
 [<000000004029c284>] inode_lru_isolate+0x1e4/0x2b0
 [<0000000040240f34>] __list_lru_walk_one.isra.4+0xc4/0x1c0
 [<00000000402411bc>] list_lru_walk_one+0x64/0x80
 [<000000004029cc2c>] prune_icache_sb+0x54/0x88
 [<000000004027c564>] super_cache_scan+0x2a4/0x308
 [<0000000040228d6c>] shrink_slab+0x34c/0x408
 [<000000004022d23c>] shrink_zone+0x2bc/0x2c8
 [<000000004022e0d4>] kswapd+0x6a4/0xb70
 [<00000000401a5e14>] kthread+0x144/0x178
 [<0000000040145020>] end_fault_vector+0x20/0x28
 [<0000000014281000>] 0x14281000

Kernel panic - not syncing: Kernel Fault
---[ end Kernel panic - not syncing: Kernel Fault

This is with:
Linux version 4.0.8+ (dave@mx3210) (gcc version 4.9.3 (GCC) ) #1 SMP Mon Jul 13 18:47:55 EDT 2015

Dave

On 2015-07-13, at 2:54 PM, Helge Deller wrote:

> COOL !!!
> I think this is our kernel 4.0 OOM bugfix !!
> 
> Helge
> 
> 
> -------- Forwarded Message --------
> Subject: Re: [PATCH] parisc: mm: Fix a memory leak related to pmd not attached to the pgd
> Date: Mon, 13 Jul 2015 20:52:37 +0200
> From: Helge Deller <deller@gmx.de>
> To: Christophe JAILLET <christophe.jaillet@wanadoo.fr>, jejb@parisc-linux.org, mpatocka@redhat.com, kirill.shutemov@linux.intel.com
> CC: linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, John David Anglin <dave.anglin@bell.net>, Meelis Roos <mroos@linux.ee>
> 
> Hi Christophe,
> 
> On 13.07.2015 11:32, Christophe JAILLET wrote:
>> Commit 0e0da48dee8d ("parisc: mm: don't count preallocated pmds")
>> introduced a memory leak.
>> 
>> After this commit, the 'return' statement in pmd_free is executed in all
>> cases. Even for pmd that are not attached to the pgd.
>> So 'free_pages' can never be called anymore, leading to a memory leak.
> 
> That's really great!!! Thanks for spotting this!
> 
> I assume this fixes the leak which killed our debian buildds with OOM
> after an uptime of 1-4 days and which only happened since kernel 4.0.
> Meelis Roos reported the issue already in this thread:
> http://marc.info/?l=linux-parisc&m=142999113232154&w=2
> 
>> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> 
> Acked-by: Helge Deller <deller@gmx.de>
> 
> 
> Will this patch be pushed via linux-mm or another tree, if
> not I can take it via the parisc tree?
> 
> 
> Helge
> 
> 
>> ---
>> This patch is *untested* as I don't have the hardware to test it.
>> 
>> This is just a guess based on the indentation, the comment in the code
>> and the commit log.
>> ---
>>  arch/parisc/include/asm/pgalloc.h | 3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
>> 
>> diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
>> index 3a08eae..f66d3738 100644
>> --- a/arch/parisc/include/asm/pgalloc.h
>> +++ b/arch/parisc/include/asm/pgalloc.h
>> @@ -72,7 +72,7 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
>> 
>>  static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>>  {
>> -	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
>> +	if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED) {
>>  		/*
>>  		 * This is the permanent pmd attached to the pgd;
>>  		 * cannot free it.
>> @@ -81,6 +81,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>>  		 */
>>  		mm_inc_nr_pmds(mm);
>>  		return;
>> +	}
>>  	free_pages((unsigned long)pmd, PMD_ORDER);
>>  }
>> 
>> 
> 
> --
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> 
> 

--
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From - Thu Nov 08 21:37:38 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: mm: Fix a memory leak related to pmd not attached to the pgd
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Cc: Helge Deller <deller@gmx.de>,
	linux-parisc List <linux-parisc@vger.kernel.org>,
	"jejb@parisc-linux.org Bottomley" <jejb@parisc-linux.org>,
	Mikulas Patocka <mpatocka@redhat.com>,
	Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
	Linux Kernel list <linux-kernel@vger.kernel.org>
To: John David Anglin <dave.anglin@bell.net>
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Faulting instruction is:
    4021a11c:   0f 38 12 d0     std r24,8(r25)

Register r25 is misaligned by 1.

Dave

On 2015-07-14, at 7:52 AM, John David Anglin wrote:

> Sadly, it appears we are not out of the woods yet:
> 
> mx3210 login: Backtrace:
> [<000000004021c904>] free_hot_cold_page+0x234/0x250
> [<000000004021c974>] free_hot_cold_page_list+0x54/0x90
> [<0000000040224f28>] release_pages+0x308/0x3f0
> [<0000000040226ae8>] __pagevec_release+0x58/0x78
> [<00000000402287f4>] invalidate_mapping_pages+0x244/0x258
> [<000000004029c284>] inode_lru_isolate+0x1e4/0x2b0
> [<0000000040240f34>] __list_lru_walk_one.isra.4+0xc4/0x1c0
> [<00000000402411bc>] list_lru_walk_one+0x64/0x80
> [<000000004029cc2c>] prune_icache_sb+0x54/0x88
> [<000000004027c564>] super_cache_scan+0x2a4/0x308
> [<0000000040228d6c>] shrink_slab+0x34c/0x408
> [<000000004022d23c>] shrink_zone+0x2bc/0x2c8
> [<000000004022e0d4>] kswapd+0x6a4/0xb70
> [<00000000401a5e14>] kthread+0x144/0x178
> [<0000000040145020>] end_fault_vector+0x20/0x28
> [<0000000014281000>] 0x14281000
> 
> 
> Kernel Fault: Code=15 regs=000000007c749020 (Addr=0000000000001841)
> CPU: 2 PID: 286 Comm: kswapd2 Not tainted 4.0.8+ #1
> task: 000000007f75f528 ti: 000000007c748000 task.ti: 000000007c748000
> 
>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001101111111100001110 Not tainted
> r00-03  000000ff0806ff0e 0000000000000000 0000000040766a40 000000007c748f00
> r04-07  00000000406eac70 00000000421d1540 0000000000000040 0000000040766940
> r08-11  ffffffffffffff80 0000000000000013 0000000000200200 0000000000100100
> r12-15  0000000000000001 ffffffffffffffff 00000000407fd980 00000000427ea580
> r16-19  0000000000000013 00000000427ea5b0 0000000000000002 00000000427ea5a0
> r20-23  000000007c748ff0 0000000040766a40 0000000000000020 0000000040766980
> r24-27  00000000421d1560 0000000000001839 0000000000000000 00000000406eac70
> r28-31  0000000000000000 0000000000000000 000000007c749020 0000000000000040
> sr00-03  0000000000b45800 0000000001060800 0000000000000000 0000000000b45800
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004021a11c 000000004021a120
> IIR: 0f3812d0    ISR: 0000000000000000  IOR: 0000000000001841
> CPU:        2   CR30: 000000007c748000 CR31: 572c033000297031
> ORIG_R28: 000000007c749210
> IAOQ[0]: free_pcppages_bulk+0x34c/0x470
> IAOQ[1]: free_pcppages_bulk+0x350/0x470
> RP(r2): 0x40766a40
> Backtrace:
> [<000000004021c904>] free_hot_cold_page+0x234/0x250
> [<000000004021c974>] free_hot_cold_page_list+0x54/0x90
> [<0000000040224f28>] release_pages+0x308/0x3f0
> [<0000000040226ae8>] __pagevec_release+0x58/0x78
> [<00000000402287f4>] invalidate_mapping_pages+0x244/0x258
> [<000000004029c284>] inode_lru_isolate+0x1e4/0x2b0
> [<0000000040240f34>] __list_lru_walk_one.isra.4+0xc4/0x1c0
> [<00000000402411bc>] list_lru_walk_one+0x64/0x80
> [<000000004029cc2c>] prune_icache_sb+0x54/0x88
> [<000000004027c564>] super_cache_scan+0x2a4/0x308
> [<0000000040228d6c>] shrink_slab+0x34c/0x408
> [<000000004022d23c>] shrink_zone+0x2bc/0x2c8
> [<000000004022e0d4>] kswapd+0x6a4/0xb70
> [<00000000401a5e14>] kthread+0x144/0x178
> [<0000000040145020>] end_fault_vector+0x20/0x28
> [<0000000014281000>] 0x14281000
> 
> Kernel panic - not syncing: Kernel Fault
> ---[ end Kernel panic - not syncing: Kernel Fault
> 
> This is with:
> Linux version 4.0.8+ (dave@mx3210) (gcc version 4.9.3 (GCC) ) #1 SMP Mon Jul 13 18:47:55 EDT 2015
> 
> Dave
> 
> On 2015-07-13, at 2:54 PM, Helge Deller wrote:
> 
>> COOL !!!
>> I think this is our kernel 4.0 OOM bugfix !!
>> 
>> Helge
>> 
>> 
>> -------- Forwarded Message --------
>> Subject: Re: [PATCH] parisc: mm: Fix a memory leak related to pmd not attached to the pgd
>> Date: Mon, 13 Jul 2015 20:52:37 +0200
>> From: Helge Deller <deller@gmx.de>
>> To: Christophe JAILLET <christophe.jaillet@wanadoo.fr>, jejb@parisc-linux.org, mpatocka@redhat.com, kirill.shutemov@linux.intel.com
>> CC: linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, John David Anglin <dave.anglin@bell.net>, Meelis Roos <mroos@linux.ee>
>> 
>> Hi Christophe,
>> 
>> On 13.07.2015 11:32, Christophe JAILLET wrote:
>>> Commit 0e0da48dee8d ("parisc: mm: don't count preallocated pmds")
>>> introduced a memory leak.
>>> 
>>> After this commit, the 'return' statement in pmd_free is executed in all
>>> cases. Even for pmd that are not attached to the pgd.
>>> So 'free_pages' can never be called anymore, leading to a memory leak.
>> 
>> That's really great!!! Thanks for spotting this!
>> 
>> I assume this fixes the leak which killed our debian buildds with OOM
>> after an uptime of 1-4 days and which only happened since kernel 4.0.
>> Meelis Roos reported the issue already in this thread:
>> http://marc.info/?l=linux-parisc&m=142999113232154&w=2
>> 
>>> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
>> 
>> Acked-by: Helge Deller <deller@gmx.de>
>> 
>> 
>> Will this patch be pushed via linux-mm or another tree, if
>> not I can take it via the parisc tree?
>> 
>> 
>> Helge
>> 
>> 
>>> ---
>>> This patch is *untested* as I don't have the hardware to test it.
>>> 
>>> This is just a guess based on the indentation, the comment in the code
>>> and the commit log.
>>> ---
>>> arch/parisc/include/asm/pgalloc.h | 3 ++-
>>> 1 file changed, 2 insertions(+), 1 deletion(-)
>>> 
>>> diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
>>> index 3a08eae..f66d3738 100644
>>> --- a/arch/parisc/include/asm/pgalloc.h
>>> +++ b/arch/parisc/include/asm/pgalloc.h
>>> @@ -72,7 +72,7 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
>>> 
>>> static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>>> {
>>> -	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
>>> +	if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED) {
>>> 		/*
>>> 		 * This is the permanent pmd attached to the pgd;
>>> 		 * cannot free it.
>>> @@ -81,6 +81,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>>> 		 */
>>> 		mm_inc_nr_pmds(mm);
>>> 		return;
>>> +	}
>>> 	free_pages((unsigned long)pmd, PMD_ORDER);
>>> }
>>> 
>>> 
>> 
>> --
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>> 
>> 
>> 
> 
> --
> John David Anglin	dave.anglin@bell.net
> 
> 
> 
> --
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> 

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From - Thu Nov 08 21:37:38 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Bug#706050: logrotate: spurious "error: getting file ACL" messages
Date: Wed, 15 Jul 2015 08:04:00 -0400
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On 2015-07-12, at 4:15 AM, James Bottomley wrote:

> On Sat, 2015-07-11 at 11:51 -0400, John David Anglin wrote:
>> On 2013-04-24, at 7:36 AM, John David Anglin wrote:
>> 
>>> On 24-Apr-13, at 7:01 AM, Paul Martin wrote:
>>> 
>>>> The test is
>>>> 
>>>>      if ((prev_acl = acl_get_fd(fdcurr)) == NULL) {
>>>>              if (errno != ENOTSUP) {
>>>>                      message(MESS_ERROR, "getting file ACL %s: %s\n",
>>>>                              currLog, strerror(errno));
>>>> 
>>>> 
>>>> and your kernel is responding with ENOSYS instead.  This contradicts
>>>> the manpage acl_get_fd(3):
>>>> 
>>>>   [ENOTSUP]          The file system on which the file identified by fd is
>>>>                      located does not support ACLs, or ACLs are disabled.
>>> 
>>> Thanks, forwarded your response to the parisc-linux list for review.
>> 
>> 
>> The spurious mail  has come back with logrotate 3.8.7-2.  File system is ext4:
>> /dev/sdc6 on /var type ext4 (rw,relatime,data=ordered)
>> 
>> /etc/cron.daily/logrotate:
>> error: getting file ACL /var/log/apt/term.log: Operation not supported
>> error: getting file ACL /var/log/apt/history.log: Operation not supported
>> ...
> 
> It looks like you built your kernel without CONFIG_EXT4_FS_POSIX_ACL.
> The warning is harmless because ACLs aren't required for logs ... it's
> merely trying to duplicate the ACL on the rotated file.


You were correct, CONFIG_EXT4_FS_POSIX_ACL wasn't defined.  Adding this to the kernel
appears to suppress the spam email from logrotate.

Thanks,
Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:37:38 2018
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Subject: Re: [3/3] IRQ: Print "unexpected IRQ" messages consistently across
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On Mon, 2015-07-13 at 13:35 -0500, Bjorn Helgaas wrote:
> On Sun, Jul 12, 2015 at 10:23 PM, Michael Ellerman <mpe@ellerman.id.au> wrote:
> > On Sun, 2015-12-07 at 22:02:11 UTC, Bjorn Helgaas wrote:
> >> Many architectures use a variant of "unexpected IRQ trap at vector %x" to
> >> log unexpected IRQs.  This is confusing because (a) it prints the Linux IRQ
> >> number, but "vector" more often refers to a CPU vector number, and (b) it
> >> prints the IRQ number in hex with no base indication, while Linux IRQ
> >> numbers are usually printed in decimal.
> >>
> >> Print the same text ("unexpected IRQ %d") across all architectures.
> >>
> >> No functional change other than the output text.
> >
> > There's already a fallback version in asm-generic, so shouldn't you instead
> > just delete all the versions that are identical to that?
> >
> > eg. on powerpc we have:
> >
> >>  static inline void ack_bad_irq(unsigned int irq)
> >>  {
> >> -     printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
> >> +     printk(KERN_CRIT "unexpected IRQ %d\n", irq);
> >>  }
> >
> > And the generic version is:
> >
> >>  #ifndef ack_bad_irq
> >>  static inline void ack_bad_irq(unsigned int irq)
> >>  {
> >> -     printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
> >> +     printk(KERN_CRIT "unexpected IRQ %d\n", irq);
> >>  }
> >>  #endif
> >
> > So we can just delete the powerpc version?
> 
> Wow, I really didn't do my homework here.  Not only is there a generic
> version already, but there's also print_irq_desc(), which prints way
> more information than any of the ack_bad_irq() implementations.

Even better :)

> I'll try again :)

Thanks.

cheers



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Subject: Re: Bug#706050: logrotate: spurious "error: getting file ACL"
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On Sat, Jul 11, 2015 at 11:51:12AM -0400, John David Anglin wrote:

> The spurious mail  has come back with logrotate 3.8.7-2.  File system is ext4:
> /dev/sdc6 on /var type ext4 (rw,relatime,data=ordered)
> 
> /etc/cron.daily/logrotate:
> error: getting file ACL /var/log/apt/term.log: Operation not supported
> error: getting file ACL /var/log/apt/history.log: Operation not supported
> ...

Are you running with SELinux enabled by any chance?

-- 
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On 2015-07-16, at 2:55 AM, Paul Martin wrote:

> On Sat, Jul 11, 2015 at 11:51:12AM -0400, John David Anglin wrote:
> 
>> The spurious mail  has come back with logrotate 3.8.7-2.  File system is ext4:
>> /dev/sdc6 on /var type ext4 (rw,relatime,data=ordered)
>> 
>> /etc/cron.daily/logrotate:
>> error: getting file ACL /var/log/apt/term.log: Operation not supported
>> error: getting file ACL /var/log/apt/history.log: Operation not supported
>> ...
> 
> Are you running with SELinux enabled by any chance?


No.  As mentioned previously, CONFIG_EXT4_FS_POSIX_ACL=y makes problem go away.

Dave
--
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From - Thu Nov 08 21:37:38 2018
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From: Thomas Gleixner <tglx@linutronix.de>
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Subject: Re: [PATCH 1/3] x86, irq: Rename VECTOR_UNDEFINED and VECTOR_RETRIGGERED
 to IRQ_*
Date: Fri, 17 Jul 2015 16:06:54 +0200 (CEST)
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To: Bjorn Helgaas <bhelgaas@google.com>
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On Sun, 12 Jul 2015, Bjorn Helgaas wrote:

> The per-cpu vector_irq[] table is indexed by CPU vector numbers, and each
> entry contains an IRQ number.
> 
> Rename the special values VECTOR_UNDEFINED and VECTOR_RETRIGGERED to
> IRQ_UNDEFINED and IRQ_RETRIGGERED to indicate that they are in the IRQ
> number space, not the CPU vector number space.

Makes some sense, but OTOH vector_irq actually reflects the vector
state not the irq number state. The fact that we store the Linux irq
number in vector_irq is just an implementation detail.

VECTOR_UNDEFINED is certainly a misnomer; that should be VECTOR_UNUSED

VECTOR_RETRIGGERED is pretty accurate. In the case we retrigger an
interrupt, we merily use the Linux irq number to figure out which
vector to kick. And after we retriggered it, we lose the association
to the Linux irq number completely.

That said, I'm working on storing the irq descriptor pointer in
vector_irq instead of the irq number, which has the advantage that we
avoid the lookup of the irq descriptor in the interrupt hotpath.

Thanks,

	tglx

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From - Thu Nov 08 21:37:38 2018
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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 1/3] x86, irq: Rename VECTOR_UNDEFINED and
 VECTOR_RETRIGGERED to IRQ_*
Date: Fri, 17 Jul 2015 12:50:05 -0500
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On Fri, Jul 17, 2015 at 9:06 AM, Thomas Gleixner <tglx@linutronix.de> wrote:
> On Sun, 12 Jul 2015, Bjorn Helgaas wrote:
>
>> The per-cpu vector_irq[] table is indexed by CPU vector numbers, and each
>> entry contains an IRQ number.
>>
>> Rename the special values VECTOR_UNDEFINED and VECTOR_RETRIGGERED to
>> IRQ_UNDEFINED and IRQ_RETRIGGERED to indicate that they are in the IRQ
>> number space, not the CPU vector number space.
>
> Makes some sense, but OTOH vector_irq actually reflects the vector
> state not the irq number state. The fact that we store the Linux irq
> number in vector_irq is just an implementation detail.
>
> VECTOR_UNDEFINED is certainly a misnomer; that should be VECTOR_UNUSED
>
> VECTOR_RETRIGGERED is pretty accurate. In the case we retrigger an
> interrupt, we merily use the Linux irq number to figure out which
> vector to kick. And after we retriggered it, we lose the association
> to the Linux irq number completely.
>
> That said, I'm working on storing the irq descriptor pointer in
> vector_irq instead of the irq number, which has the advantage that we
> avoid the lookup of the irq descriptor in the interrupt hotpath.

OK, I'll abandon this.  Thanks for taking a look!

Bjorn
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From - Thu Nov 08 21:37:39 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc fixes for v4.2
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To: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
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Hi Linus,

please pull the latest fixes for the parisc architecture for v4.2 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.2-2

A memory leak fix from Christophe Jaillet which was introduced with kernel 4.0
and which leads to kernel crashes on parisc after 1-3 days.

Thanks,
Helge

----------------------------------------------------------------
Christophe Jaillet (1):
      parisc: mm: Fix a memory leak related to pmd not attached to the pgd

 arch/parisc/include/asm/pgalloc.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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From - Thu Nov 08 21:37:39 2018
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.janitors
Subject: Re: [PATCH] parisc: mm: Fix a memory leak related to pmd not attached
 to the pgd
Date: Mon, 20 Jul 2015 22:28:56 +0300 (EEST)
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References: <1436779963-4286-1-git-send-email-christophe.jaillet@wanadoo.fr> <55A408F5.601@gmx.de>
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Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
	jejb@parisc-linux.org, mpatocka@redhat.com,
	kirill.shutemov@linux.intel.com, linux-parisc@vger.kernel.org,
	linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
	John David Anglin <dave.anglin@bell.net>
To: Helge Deller <deller@gmx.de>
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> Hi Christophe,
> 
> On 13.07.2015 11:32, Christophe JAILLET wrote:
> > Commit 0e0da48dee8d ("parisc: mm: don't count preallocated pmds")
> > introduced a memory leak.
> >
> > After this commit, the 'return' statement in pmd_free is executed in all
> > cases. Even for pmd that are not attached to the pgd.
> > So 'free_pages' can never be called anymore, leading to a memory leak.
> 
> That's really great!!! Thanks for spotting this!
> 
> I assume this fixes the leak which killed our debian buildds with OOM
> after an uptime of 1-4 days and which only happened since kernel 4.0.
> Meelis Roos reported the issue already in this thread:
> http://marc.info/?l=linux-parisc&m=142999113232154&w=2

Yes, the patch that is merged in 4.2-rc3 fixed my RP3410 with 1G RAM.

-- 
Meelis Roos (mroos@linux.ee)

From - Thu Nov 08 21:37:39 2018
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From: Vlastimil Babka <vbabka@suse.cz>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: Re: [PATCH V3 3/5] mm: mlock: Introduce VM_LOCKONFAULT and add mlock
 flags to enable it
Date: Tue, 21 Jul 2015 17:35:59 +0200
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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To: Eric B Munson <emunson@akamai.com>,
	Jonathan Corbet <corbet@lwn.net>
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On 07/10/2015 06:19 PM, Eric B Munson wrote:
> On Fri, 10 Jul 2015, Jonathan Corbet wrote:
>
>> On Thu, 9 Jul 2015 14:46:35 -0400
>> Eric B Munson <emunson@akamai.com> wrote:
>>
>>>> One other question...if I call mlock2(MLOCK_ONFAULT) on a range that
>>>> already has resident pages, I believe that those pages will not be locked
>>>> until they are reclaimed and faulted back in again, right?  I suspect that
>>>> could be surprising to users.
>>>
>>> That is the case.  I am looking into what it would take to find only the
>>> present pages in a range and lock them, if that is the behavior that is
>>> preferred I can include it in the updated series.
>>
>> For whatever my $0.02 is worth, I think that should be done.  Otherwise
>> the mlock2() interface is essentially nondeterministic; you'll never
>> really know if a specific page is locked or not.
>>
>> Thanks,
>>
>> jon
>
> Okay, I likely won't have the new set out today then.  This change is
> more invasive.  IIUC, I need an equivalent to __get_user_page() skips
> pages which are not present instead of faulting in and the call chain to
> get to it.  Unless there is an easier way that I am missing.

IIRC having page PageMlocked and put on unevictable list isn't necessary 
to prevent it from being reclaimed. It's just to prevent it from being 
scanned for reclaim in the first place. When attempting to unmap the 
page, vma flags are still checked, see the code in try_to_unmap_one(). 
You should probably extend the checks to your new VM_ flag as it is done 
for VM_LOCKED and then you shouldn't need to walk the pages to mlock 
them (although it would probably still be better for the accounting 
accuracy).

> Eric
>

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From - Thu Nov 08 21:37:39 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH V4 5/6] mm: mmap: Add mmap flag to request VM_LOCKONFAULT
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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/136033>

The cost of faulting in all memory to be locked can be very high when
working with large mappings.  If only portions of the mapping will be
used this can incur a high penalty for locking.

Now that we have the new VMA flag for the locked but not present state,
expose it as an mmap option like MAP_LOCKED -> VM_LOCKED.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
---
Changes from V3:
 Add missing MAP_LOCKONFAULT to tile

 arch/alpha/include/uapi/asm/mman.h   | 1 +
 arch/mips/include/uapi/asm/mman.h    | 1 +
 arch/parisc/include/uapi/asm/mman.h  | 1 +
 arch/powerpc/include/uapi/asm/mman.h | 1 +
 arch/sparc/include/uapi/asm/mman.h   | 1 +
 arch/tile/include/uapi/asm/mman.h    | 1 +
 arch/xtensa/include/uapi/asm/mman.h  | 1 +
 include/linux/mman.h                 | 3 ++-
 include/uapi/asm-generic/mman.h      | 1 +
 kernel/events/core.c                 | 2 ++
 mm/mmap.c                            | 6 ++++--
 11 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 77ae8db..3f80ca4 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -30,6 +30,7 @@
 #define MAP_NONBLOCK	0x40000		/* do not block on IO */
 #define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x200000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_SYNC		2		/* synchronous memory sync */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 71ed81d..905c1ea 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -48,6 +48,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 /*
  * Flags for msync
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index c0871ce..c4695f6 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -24,6 +24,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_SYNC		1		/* synchronous memory sync */
 #define MS_ASYNC	2		/* sync memory asynchronously */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index f93f7eb..40a3fda 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -31,5 +31,6 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 #endif /* _UAPI_ASM_POWERPC_MMAN_H */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 8cd2ebc..3d74ab7 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -26,6 +26,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x8000		/* Lock pages after they are faulted in, do not prefault */
 
 
 #endif /* _UAPI__SPARC_MMAN_H__ */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index acdd013..800e5c3 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -29,6 +29,7 @@
 #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
 #define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
 #define MAP_HUGETLB	0x4000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 
 /*
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 5725a15..689e1f2 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -55,6 +55,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 #ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
 # define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be
 					 * uninitialized */
diff --git a/include/linux/mman.h b/include/linux/mman.h
index 16373c8..437264b 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -86,7 +86,8 @@ calc_vm_flag_bits(unsigned long flags)
 {
 	return _calc_vm_trans(flags, MAP_GROWSDOWN,  VM_GROWSDOWN ) |
 	       _calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
-	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    );
+	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    ) |
+	       _calc_vm_trans(flags, MAP_LOCKONFAULT,VM_LOCKONFAULT);
 }
 
 unsigned long vm_commit_limit(void);
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index 555aab0..007b784 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -12,6 +12,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 /* Bits [26:31] are reserved, see mman-common.h for MAP_HUGETLB usage */
 
diff --git a/kernel/events/core.c b/kernel/events/core.c
index d3dae34..53f312c 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5816,6 +5816,8 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 			flags |= MAP_EXECUTABLE;
 		if (vma->vm_flags & VM_LOCKED)
 			flags |= MAP_LOCKED;
+		if (vma->vm_flags & VM_LOCKONFAULT)
+			flags |= MAP_LOCKONFAULT;
 		if (vma->vm_flags & VM_HUGETLB)
 			flags |= MAP_HUGETLB;
 
diff --git a/mm/mmap.c b/mm/mmap.c
index de89be4..54715b6 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1301,7 +1301,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 	vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
 			mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
 
-	if (flags & MAP_LOCKED)
+	if (flags & (MAP_LOCKED | MAP_LOCKONFAULT))
 		if (!can_do_mlock())
 			return -EPERM;
 
@@ -2678,12 +2678,14 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
 		flags |= MAP_LOCKED;
 		drop_lock_flag = VM_LOCKED;
 	} else if (vma->vm_flags & VM_LOCKONFAULT) {
+		flags |= MAP_LOCKONFAULT;
 		drop_lock_flag = VM_LOCKONFAULT;
 	}
 
+
 	if (drop_lock_flag)
 		/* drop PG_Mlocked flag for over-mapped range */
-		munlock_vma_pages_range(vma, start, start + size, VM_LOCKED);
+		munlock_vma_pages_range(vma, start, start + size, drop_lock_flag);
 
 	file = get_file(vma->vm_file);
 	ret = do_mmap_pgoff(vma->vm_file, start, size,
-- 
1.9.1

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From - Thu Nov 08 21:37:39 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch
Subject: [PATCH V4 2/6] mm: mlock: Add new mlock, munlock, and munlockall system calls
Date: Tue, 21 Jul 2015 15:59:37 -0400
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Cc: Eric B Munson <emunson@akamai.com>,
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	Vlastimil Babka <vbabka@suse.cz>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/136034>

With the refactored mlock code, introduce new system calls for mlock,
munlock, and munlockall.  The new calls will allow the user to specify
what lock states are being added or cleared.  mlock2 and munlock2 are
trivial at the moment, but a follow on patch will add a new mlock state
making them useful.

munlock2 addresses a limitation of the current implementation.  If a
user calls mlockall(MCL_CURRENT | MCL_FUTURE) and then later decides
that MCL_FUTURE should be removed, they would have to call munlockall()
followed by mlockall(MCL_CURRENT) which could potentially be very
expensive.  The new munlockall2 system call allows a user to simply
clear the MCL_FUTURE flag.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: linux-cris-kernel@axis.com
Cc: linux-ia64@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-mips@linux-mips.org
Cc: linux-am33-list@redhat.com
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mm@kvack.org
---
Changes from V3:
* Do a (hopefully) complete job of adding the new system calls

 arch/alpha/include/asm/unistd.h           |  2 +-
 arch/alpha/include/uapi/asm/mman.h        |  2 ++
 arch/alpha/include/uapi/asm/unistd.h      |  3 +++
 arch/alpha/kernel/systbls.S               |  3 +++
 arch/arm/include/asm/unistd.h             |  2 +-
 arch/arm/include/uapi/asm/unistd.h        |  3 +++
 arch/arm/kernel/calls.S                   |  3 +++
 arch/arm64/include/asm/unistd32.h         |  6 ++++++
 arch/avr32/include/uapi/asm/unistd.h      |  3 +++
 arch/avr32/kernel/syscall_table.S         |  3 +++
 arch/blackfin/include/uapi/asm/unistd.h   |  3 +++
 arch/blackfin/mach-common/entry.S         |  3 +++
 arch/cris/arch-v10/kernel/entry.S         |  3 +++
 arch/cris/arch-v32/kernel/entry.S         |  3 +++
 arch/frv/kernel/entry.S                   |  3 +++
 arch/ia64/include/asm/unistd.h            |  2 +-
 arch/ia64/include/uapi/asm/unistd.h       |  3 +++
 arch/ia64/kernel/entry.S                  |  3 +++
 arch/m32r/kernel/entry.S                  |  3 +++
 arch/m32r/kernel/syscall_table.S          |  3 +++
 arch/m68k/include/asm/unistd.h            |  2 +-
 arch/m68k/include/uapi/asm/unistd.h       |  3 +++
 arch/m68k/kernel/syscalltable.S           |  3 +++
 arch/microblaze/include/uapi/asm/unistd.h |  3 +++
 arch/microblaze/kernel/syscall_table.S    |  3 +++
 arch/mips/include/uapi/asm/mman.h         |  5 +++++
 arch/mips/include/uapi/asm/unistd.h       | 21 +++++++++++++++------
 arch/mips/kernel/scall32-o32.S            |  3 +++
 arch/mips/kernel/scall64-64.S             |  3 +++
 arch/mips/kernel/scall64-n32.S            |  3 +++
 arch/mips/kernel/scall64-o32.S            |  3 +++
 arch/mn10300/kernel/entry.S               |  3 +++
 arch/parisc/include/uapi/asm/mman.h       |  2 ++
 arch/parisc/include/uapi/asm/unistd.h     |  5 ++++-
 arch/powerpc/include/uapi/asm/mman.h      |  2 ++
 arch/powerpc/include/uapi/asm/unistd.h    |  3 +++
 arch/s390/include/uapi/asm/unistd.h       |  5 ++++-
 arch/s390/kernel/compat_wrapper.c         |  3 +++
 arch/s390/kernel/syscalls.S               |  3 +++
 arch/sh/kernel/syscalls_32.S              |  3 +++
 arch/sparc/include/uapi/asm/mman.h        |  2 ++
 arch/sparc/include/uapi/asm/unistd.h      |  5 ++++-
 arch/sparc/kernel/systbls_32.S            |  2 +-
 arch/sparc/kernel/systbls_64.S            |  4 ++--
 arch/tile/include/uapi/asm/mman.h         |  5 +++++
 arch/x86/entry/syscalls/syscall_32.tbl    |  3 +++
 arch/x86/entry/syscalls/syscall_64.tbl    |  3 +++
 arch/xtensa/include/uapi/asm/mman.h       |  5 +++++
 arch/xtensa/include/uapi/asm/unistd.h     | 10 ++++++++--
 include/linux/syscalls.h                  |  4 ++++
 include/uapi/asm-generic/mman.h           |  2 ++
 include/uapi/asm-generic/unistd.h         |  8 +++++++-
 kernel/sys_ni.c                           |  3 +++
 mm/mlock.c                                | 28 ++++++++++++++++++++++++++++
 54 files changed, 205 insertions(+), 19 deletions(-)

diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index a56e608..1d09392 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -3,7 +3,7 @@
 
 #include <uapi/asm/unistd.h>
 
-#define NR_SYSCALLS			514
+#define NR_SYSCALLS			517
 
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_STAT64
diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..ec72436 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -38,6 +38,8 @@
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
 #define MADV_SEQUENTIAL	2		/* expect sequential page references */
diff --git a/arch/alpha/include/uapi/asm/unistd.h b/arch/alpha/include/uapi/asm/unistd.h
index aa33bf5..29141d6 100644
--- a/arch/alpha/include/uapi/asm/unistd.h
+++ b/arch/alpha/include/uapi/asm/unistd.h
@@ -475,5 +475,8 @@
 #define __NR_getrandom			511
 #define __NR_memfd_create		512
 #define __NR_execveat			513
+#define __NR_mlock2			514
+#define __NR_munlock2			515
+#define __NR_munlockall2		516
 
 #endif /* _UAPI_ALPHA_UNISTD_H */
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index 9b62e3f..04d1cce 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -532,6 +532,9 @@ sys_call_table:
 	.quad sys_getrandom
 	.quad sys_memfd_create
 	.quad sys_execveat
+	.quad sys_mlock2
+	.quad sys_munlock2			/* 515 */
+	.quad sys_munlockall2
 
 	.size sys_call_table, . - sys_call_table
 	.type sys_call_table, @object
diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index 32640c4..7cba573 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -19,7 +19,7 @@
  * This may need to be greater than __NR_last_syscall+1 in order to
  * account for the padding in the syscall table
  */
-#define __NR_syscalls  (388)
+#define __NR_syscalls  (392)
 
 /*
  * *NOTE*: This is a ghost syscall private to the kernel.  Only the
diff --git a/arch/arm/include/uapi/asm/unistd.h b/arch/arm/include/uapi/asm/unistd.h
index 0c3f5a0..46eaf405 100644
--- a/arch/arm/include/uapi/asm/unistd.h
+++ b/arch/arm/include/uapi/asm/unistd.h
@@ -414,6 +414,9 @@
 #define __NR_memfd_create		(__NR_SYSCALL_BASE+385)
 #define __NR_bpf			(__NR_SYSCALL_BASE+386)
 #define __NR_execveat			(__NR_SYSCALL_BASE+387)
+#define __NR_mlock2			(__NR_SYSCALL_BASE+388)
+#define __NR_munlock2			(__NR_SYSCALL_BASE+389)
+#define __NR_munlockall2		(__NR_SYSCALL_BASE+390)
 
 /*
  * The following SWIs are ARM private.
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 05745eb..8880822 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -397,6 +397,9 @@
 /* 385 */	CALL(sys_memfd_create)
 		CALL(sys_bpf)
 		CALL(sys_execveat)
+		CALL(sys_mlock2)
+		CALL(sys_munlock2)
+/* 390 */	CALL(sys_munlockall2)
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index cef934a..318072aa 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -797,3 +797,9 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
 __SYSCALL(__NR_bpf, sys_bpf)
 #define __NR_execveat 387
 __SYSCALL(__NR_execveat, compat_sys_execveat)
+#define __NR_mlock2 388
+__SYSCALL(__NR_mlock2, sys_mlock2)
+#define __NR_munlock2 389
+__SYSCALL(__NR_munlock2, sys_munlock2)
+#define __NR_munlockall2 390
+__SYSCALL(__NR_munlockall2, sys_munlockall2)
diff --git a/arch/avr32/include/uapi/asm/unistd.h b/arch/avr32/include/uapi/asm/unistd.h
index bbe2fba..e6a1681 100644
--- a/arch/avr32/include/uapi/asm/unistd.h
+++ b/arch/avr32/include/uapi/asm/unistd.h
@@ -333,5 +333,8 @@
 #define __NR_memfd_create	318
 #define __NR_bpf		319
 #define __NR_execveat		320
+#define __NR_mlock2		321
+#define __NR_munlock2		322
+#define __NR_munlockall2	323
 
 #endif /* _UAPI__ASM_AVR32_UNISTD_H */
diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S
index c3b593b..83928ab 100644
--- a/arch/avr32/kernel/syscall_table.S
+++ b/arch/avr32/kernel/syscall_table.S
@@ -334,4 +334,7 @@ sys_call_table:
 	.long	sys_memfd_create
 	.long	sys_bpf
 	.long	sys_execveat		/* 320 */
+	.long   sys_mlock2
+	.long   sys_munlock2
+	.long   sys_munlockall2
 	.long	sys_ni_syscall		/* r8 is saturated at nr_syscalls */
diff --git a/arch/blackfin/include/uapi/asm/unistd.h b/arch/blackfin/include/uapi/asm/unistd.h
index 0cb9078..37c0362 100644
--- a/arch/blackfin/include/uapi/asm/unistd.h
+++ b/arch/blackfin/include/uapi/asm/unistd.h
@@ -433,6 +433,9 @@
 #define __IGNORE_munlock
 #define __IGNORE_mlockall
 #define __IGNORE_munlockall
+#define __IGNORE_mlock2
+#define __IGNORE_munlock2
+#define __IGNORE_munlockall2
 #define __IGNORE_mincore
 #define __IGNORE_madvise
 #define __IGNORE_remap_file_pages
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 8d9431e..5d83587 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -1704,6 +1704,9 @@ ENTRY(_sys_call_table)
 	.long _sys_memfd_create		/* 390 */
 	.long _sys_bpf
 	.long _sys_execveat
+	.long _sys_mlock2
+	.long _sys_munlock2
+	.long _sys_munlockall2		/* 395 */
 
 	.rept NR_syscalls-(.-_sys_call_table)/4
 	.long _sys_ni_syscall
diff --git a/arch/cris/arch-v10/kernel/entry.S b/arch/cris/arch-v10/kernel/entry.S
index 81570fc..d0ce531 100644
--- a/arch/cris/arch-v10/kernel/entry.S
+++ b/arch/cris/arch-v10/kernel/entry.S
@@ -955,6 +955,9 @@ sys_call_table:
 	.long sys_process_vm_writev
 	.long sys_kcmp			/* 350 */
 	.long sys_finit_module
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2
 
         /*
          * NOTE!! This doesn't have to be exact - we just have
diff --git a/arch/cris/arch-v32/kernel/entry.S b/arch/cris/arch-v32/kernel/entry.S
index 026a0b2..7f50a0b 100644
--- a/arch/cris/arch-v32/kernel/entry.S
+++ b/arch/cris/arch-v32/kernel/entry.S
@@ -875,6 +875,9 @@ sys_call_table:
 	.long sys_process_vm_writev
 	.long sys_kcmp			/* 350 */
 	.long sys_finit_module
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2
 
 	/*
 	 * NOTE!! This doesn't have to be exact - we just have
diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S
index dfcd263..ee605a0 100644
--- a/arch/frv/kernel/entry.S
+++ b/arch/frv/kernel/entry.S
@@ -1515,5 +1515,8 @@ sys_call_table:
 	.long sys_rt_tgsigqueueinfo	/* 335 */
 	.long sys_perf_event_open
 	.long sys_setns
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2		/* 340 */
 
 syscall_table_size = (. - sys_call_table)
diff --git a/arch/ia64/include/asm/unistd.h b/arch/ia64/include/asm/unistd.h
index 95c39b9..db73390 100644
--- a/arch/ia64/include/asm/unistd.h
+++ b/arch/ia64/include/asm/unistd.h
@@ -11,7 +11,7 @@
 
 
 
-#define NR_syscalls			319 /* length of syscall table */
+#define NR_syscalls			322 /* length of syscall table */
 
 /*
  * The following defines stop scripts/checksyscalls.sh from complaining about
diff --git a/arch/ia64/include/uapi/asm/unistd.h b/arch/ia64/include/uapi/asm/unistd.h
index 4610795..5f485cc 100644
--- a/arch/ia64/include/uapi/asm/unistd.h
+++ b/arch/ia64/include/uapi/asm/unistd.h
@@ -332,5 +332,8 @@
 #define __NR_memfd_create		1340
 #define __NR_bpf			1341
 #define __NR_execveat			1342
+#define __NR_mlock2			1343
+#define __NR_munlock2			1344
+#define __NR_munlockall2		1345
 
 #endif /* _UAPI_ASM_IA64_UNISTD_H */
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index ae0de7b..3ef4457 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1768,5 +1768,8 @@ sys_call_table:
 	data8 sys_memfd_create			// 1340
 	data8 sys_bpf
 	data8 sys_execveat
+	data8 sys_mlock2
+	data8 sys_munlock2
+	data8 sys_munlockall2			// 1345
 
 	.org sys_call_table + 8*NR_syscalls	// guard against failures to increase NR_syscalls
diff --git a/arch/m32r/kernel/entry.S b/arch/m32r/kernel/entry.S
index c639bfa..4f7f2e2 100644
--- a/arch/m32r/kernel/entry.S
+++ b/arch/m32r/kernel/entry.S
@@ -76,6 +76,9 @@
 #define sys_munlock		sys_ni_syscall
 #define sys_mlockall		sys_ni_syscall
 #define sys_munlockall		sys_ni_syscall
+#define sys_mlock2		sys_ni_syscall
+#define sys_munlock2		sys_ni_syscall
+#define sys_munlockall2		sys_ni_syscall
 #define sys_mremap		sys_ni_syscall
 #define sys_mincore		sys_ni_syscall
 #define sys_remap_file_pages	sys_ni_syscall
diff --git a/arch/m32r/kernel/syscall_table.S b/arch/m32r/kernel/syscall_table.S
index f365c19..9918c3e 100644
--- a/arch/m32r/kernel/syscall_table.S
+++ b/arch/m32r/kernel/syscall_table.S
@@ -325,3 +325,6 @@ ENTRY(sys_call_table)
 	.long sys_eventfd
 	.long sys_fallocate
 	.long sys_setns			/* 325 */
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index 244e0db..b18f3da 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -4,7 +4,7 @@
 #include <uapi/asm/unistd.h>
 
 
-#define NR_syscalls		356
+#define NR_syscalls		359
 
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_OLD_STAT
diff --git a/arch/m68k/include/uapi/asm/unistd.h b/arch/m68k/include/uapi/asm/unistd.h
index 61fb6cb..1405c3f 100644
--- a/arch/m68k/include/uapi/asm/unistd.h
+++ b/arch/m68k/include/uapi/asm/unistd.h
@@ -361,5 +361,8 @@
 #define __NR_memfd_create	353
 #define __NR_bpf		354
 #define __NR_execveat		355
+#define __NR_mlock2		356
+#define __NR_munlock2		357
+#define __NR_munlockall2	358
 
 #endif /* _UAPI_ASM_M68K_UNISTD_H_ */
diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S
index a0ec430..7963c03 100644
--- a/arch/m68k/kernel/syscalltable.S
+++ b/arch/m68k/kernel/syscalltable.S
@@ -376,4 +376,7 @@ ENTRY(sys_call_table)
 	.long sys_memfd_create
 	.long sys_bpf
 	.long sys_execveat		/* 355 */
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2
 
diff --git a/arch/microblaze/include/uapi/asm/unistd.h b/arch/microblaze/include/uapi/asm/unistd.h
index 32850c7..59b06b0 100644
--- a/arch/microblaze/include/uapi/asm/unistd.h
+++ b/arch/microblaze/include/uapi/asm/unistd.h
@@ -404,5 +404,8 @@
 #define __NR_memfd_create	386
 #define __NR_bpf		387
 #define __NR_execveat		388
+#define __NR_mlock2		389 /* ok - nommu or mmu */
+#define __NR_munlock2		390 /* ok - nommu or mmu */
+#define __NR_munlockall2	391 /* ok - nommu or mmu */
 
 #endif /* _UAPI_ASM_MICROBLAZE_UNISTD_H */
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index 29c8568..6e4b0fe 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -389,3 +389,6 @@ ENTRY(sys_call_table)
 	.long sys_memfd_create
 	.long sys_bpf
 	.long sys_execveat
+	.long sys_mlock2
+	.long sys_munlock2		/* 390 */
+	.long sys_munlockall2
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..67c1cdf 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -62,6 +62,11 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
 #define MADV_SEQUENTIAL 2		/* expect sequential page references */
diff --git a/arch/mips/include/uapi/asm/unistd.h b/arch/mips/include/uapi/asm/unistd.h
index c03088f..101b884 100644
--- a/arch/mips/include/uapi/asm/unistd.h
+++ b/arch/mips/include/uapi/asm/unistd.h
@@ -377,16 +377,19 @@
 #define __NR_memfd_create		(__NR_Linux + 354)
 #define __NR_bpf			(__NR_Linux + 355)
 #define __NR_execveat			(__NR_Linux + 356)
+#define __NR_mlock2			(__NR_Linux + 357)
+#define __NR_munlock2			(__NR_Linux + 358)
+#define __NR_munlockall2		(__NR_Linux + 359)
 
 /*
  * Offset of the last Linux o32 flavoured syscall
  */
-#define __NR_Linux_syscalls		356
+#define __NR_Linux_syscalls		359
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
 
 #define __NR_O32_Linux			4000
-#define __NR_O32_Linux_syscalls		356
+#define __NR_O32_Linux_syscalls		359
 
 #if _MIPS_SIM == _MIPS_SIM_ABI64
 
@@ -711,16 +714,19 @@
 #define __NR_memfd_create		(__NR_Linux + 314)
 #define __NR_bpf			(__NR_Linux + 315)
 #define __NR_execveat			(__NR_Linux + 316)
+#define __NR_mlock2			(__NR_Linux + 317)
+#define __NR_munlock2			(__NR_Linux + 318)
+#define __NR_munlockall2		(__NR_Linux + 319)
 
 /*
  * Offset of the last Linux 64-bit flavoured syscall
  */
-#define __NR_Linux_syscalls		316
+#define __NR_Linux_syscalls		319
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
 
 #define __NR_64_Linux			5000
-#define __NR_64_Linux_syscalls		316
+#define __NR_64_Linux_syscalls		319
 
 #if _MIPS_SIM == _MIPS_SIM_NABI32
 
@@ -1049,15 +1055,18 @@
 #define __NR_memfd_create		(__NR_Linux + 318)
 #define __NR_bpf			(__NR_Linux + 319)
 #define __NR_execveat			(__NR_Linux + 320)
+#define __NR_mlock2			(__NR_Linux + 321)
+#define __NR_munlock2			(__NR_Linux + 322)
+#define __NR_munlockall2		(__NR_Linux + 323)
 
 /*
  * Offset of the last N32 flavoured syscall
  */
-#define __NR_Linux_syscalls		320
+#define __NR_Linux_syscalls		323
 
 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
 
 #define __NR_N32_Linux			6000
-#define __NR_N32_Linux_syscalls		320
+#define __NR_N32_Linux_syscalls		323
 
 #endif /* _UAPI_ASM_UNISTD_H */
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 4cc1350..c409d53 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -599,3 +599,6 @@ EXPORT(sys_call_table)
 	PTR	sys_memfd_create
 	PTR	sys_bpf				/* 4355 */
 	PTR	sys_execveat
+	PTR	sys_mlock2
+	PTR	sys_munlock2
+	PTR	sys_munlockall2
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index ad4d4463..0aa2742 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -436,4 +436,7 @@ EXPORT(sys_call_table)
 	PTR	sys_memfd_create
 	PTR	sys_bpf				/* 5315 */
 	PTR	sys_execveat
+	PTR	sys_mlock2
+	PTR	sys_munlock2
+	PTR	sys_munlockall2
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 446cc65..eb21955 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -429,4 +429,7 @@ EXPORT(sysn32_call_table)
 	PTR	sys_memfd_create
 	PTR	sys_bpf
 	PTR	compat_sys_execveat		/* 6320 */
+	PTR	sys_mlock2
+	PTR	sys_munlock2
+	PTR	sys_munlockall2
 	.size	sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index f543ff4..f45049c 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -584,4 +584,7 @@ EXPORT(sys32_call_table)
 	PTR	sys_memfd_create
 	PTR	sys_bpf				/* 4355 */
 	PTR	compat_sys_execveat
+	PTR	sys_mlock2
+	PTR	sys_munlock2
+	PTR	sys_munlockall2
 	.size	sys32_call_table,.-sys32_call_table
diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S
index 177d61d..d34adf5 100644
--- a/arch/mn10300/kernel/entry.S
+++ b/arch/mn10300/kernel/entry.S
@@ -767,6 +767,9 @@ ENTRY(sys_call_table)
 	.long sys_perf_event_open
 	.long sys_recvmmsg
 	.long sys_setns
+	.long sys_mlock2		/* 340 */
+	.long sys_munlock2
+	.long sys_munlockall2
 
 
 nr_syscalls=(.-sys_call_table)/4
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..daab994 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -32,6 +32,8 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
 #define MADV_SEQUENTIAL 2               /* expect sequential page references */
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 2e639d7..455c8a3 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -358,8 +358,11 @@
 #define __NR_memfd_create	(__NR_Linux + 340)
 #define __NR_bpf		(__NR_Linux + 341)
 #define __NR_execveat		(__NR_Linux + 342)
+#define __NR_mlock2		(__NR_Linux + 343)
+#define __NR_munlock2		(__NR_Linux + 344)
+#define __NR_munlockall2	(__NR_Linux + 345)
 
-#define __NR_Linux_syscalls	(__NR_execveat + 1)
+#define __NR_Linux_syscalls	(__NR_munlockall2 + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 6ea26df..189e85f 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -23,6 +23,8 @@
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h
index e4aa173..c9901e7 100644
--- a/arch/powerpc/include/uapi/asm/unistd.h
+++ b/arch/powerpc/include/uapi/asm/unistd.h
@@ -386,5 +386,8 @@
 #define __NR_bpf		361
 #define __NR_execveat		362
 #define __NR_switch_endian	363
+#define __NR_mlock2		364
+#define __NR_munlock2		365
+#define __NR_munlockall2	366
 
 #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */
diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h
index 67878af..d1c5b1f 100644
--- a/arch/s390/include/uapi/asm/unistd.h
+++ b/arch/s390/include/uapi/asm/unistd.h
@@ -290,7 +290,10 @@
 #define __NR_s390_pci_mmio_write	352
 #define __NR_s390_pci_mmio_read		353
 #define __NR_execveat		354
-#define NR_syscalls 355
+#define __NR_mlock2		355
+#define __NR_munlock2		356
+#define __NR_munlockall2	357
+#define NR_syscalls 358
 
 /* 
  * There are some system calls that are not present on 64 bit, some
diff --git a/arch/s390/kernel/compat_wrapper.c b/arch/s390/kernel/compat_wrapper.c
index f8498dd..58339e2 100644
--- a/arch/s390/kernel/compat_wrapper.c
+++ b/arch/s390/kernel/compat_wrapper.c
@@ -220,3 +220,6 @@ COMPAT_SYSCALL_WRAP2(memfd_create, const char __user *, uname, unsigned int, fla
 COMPAT_SYSCALL_WRAP3(bpf, int, cmd, union bpf_attr *, attr, unsigned int, size);
 COMPAT_SYSCALL_WRAP3(s390_pci_mmio_write, const unsigned long, mmio_addr, const void __user *, user_buffer, const size_t, length);
 COMPAT_SYSCALL_WRAP3(s390_pci_mmio_read, const unsigned long, mmio_addr, void __user *, user_buffer, const size_t, length);
+COMPAT_SYSCALL_WRAP3(mlock2, unsigned long, start, size_t, len, int, flags);
+COMPAT_SYSCALL_WRAP3(munlock2, unsigned long, start, size_t, len, int, flags);
+COMPAT_SYSCALL_WRAP1(munlockall2, int, flags);
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 1acad02..f6d81d6 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -363,3 +363,6 @@ SYSCALL(sys_bpf,compat_sys_bpf)
 SYSCALL(sys_s390_pci_mmio_write,compat_sys_s390_pci_mmio_write)
 SYSCALL(sys_s390_pci_mmio_read,compat_sys_s390_pci_mmio_read)
 SYSCALL(sys_execveat,compat_sys_execveat)
+SYSCALL(sys_mlock2,compat_sys_mlock2)			/* 355 */
+SYSCALL(sys_munlock2,compat_sys_munlock2)
+SYSCALL(sys_munlockall2,compat_sys_munlockall2)
diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S
index 734234b..6d07867 100644
--- a/arch/sh/kernel/syscalls_32.S
+++ b/arch/sh/kernel/syscalls_32.S
@@ -386,3 +386,6 @@ ENTRY(sys_call_table)
 	.long sys_process_vm_writev
 	.long sys_kcmp
 	.long sys_finit_module
+	.long sys_mlock2
+	.long sys_munlock2		/* 370 */
+	.long sys_munlockall2
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 0b14df3..13d51be 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -18,6 +18,8 @@
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
diff --git a/arch/sparc/include/uapi/asm/unistd.h b/arch/sparc/include/uapi/asm/unistd.h
index 6f35f4d..c25bbb1 100644
--- a/arch/sparc/include/uapi/asm/unistd.h
+++ b/arch/sparc/include/uapi/asm/unistd.h
@@ -416,8 +416,11 @@
 #define __NR_memfd_create	348
 #define __NR_bpf		349
 #define __NR_execveat		350
+#define __NR_mlock2		351
+#define __NR_munlock2		352
+#define __NR_munlockall2	353
 
-#define NR_syscalls		351
+#define NR_syscalls		354
 
 /* Bitmask values returned from kern_features system call.  */
 #define KERN_FEATURE_MIXED_MODE_STACK	0x00000001
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index e31a905..72b68d4 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -87,4 +87,4 @@ sys_call_table:
 /*335*/	.long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev
 /*340*/	.long sys_ni_syscall, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr
 /*345*/	.long sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
-/*350*/	.long sys_execveat
+/*350*/	.long sys_execveat, sys_mlock2, sys_munlock2, sys_munlockall2
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index d72f76a..a96bfea 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -88,7 +88,7 @@ sys_call_table32:
 	.word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev
 /*340*/	.word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr
 	.word sys32_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
-/*350*/	.word sys32_execveat
+/*350*/	.word sys32_execveat, sys_mlock2, sys_munlock2, sys_munlockall2
 
 #endif /* CONFIG_COMPAT */
 
@@ -168,4 +168,4 @@ sys_call_table:
 	.word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev
 /*340*/	.word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr
 	.word sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
-/*350*/	.word sys64_execveat
+/*350*/	.word sys64_execveat, sys_mlock2, sys_munlock2, sys_munlockall2
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index 81b8fc3..f69ce48 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -37,5 +37,10 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index ef8187f..13ce950 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -365,3 +365,6 @@
 356	i386	memfd_create		sys_memfd_create
 357	i386	bpf			sys_bpf
 358	i386	execveat		sys_execveat			stub32_execveat
+359	i386	mlock2			sys_mlock2
+360	i386	munlock2		sys_munlock2
+361	i386	munlockall2		sys_munlockall2
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 9ef32d5..13b3cb1 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -329,6 +329,9 @@
 320	common	kexec_file_load		sys_kexec_file_load
 321	common	bpf			sys_bpf
 322	64	execveat		stub_execveat
+323	common	mlock2			sys_mlock2
+324	common	munlock2		sys_munlock2
+325	common	munlockall2		sys_munlockall2
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..11f354f 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -75,6 +75,11 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
 #define MADV_SEQUENTIAL	2		/* expect sequential page references */
diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h
index b95c305..fbd0876 100644
--- a/arch/xtensa/include/uapi/asm/unistd.h
+++ b/arch/xtensa/include/uapi/asm/unistd.h
@@ -753,8 +753,14 @@ __SYSCALL(339, sys_memfd_create, 2)
 __SYSCALL(340, sys_bpf, 3)
 #define __NR_execveat				341
 __SYSCALL(341, sys_execveat, 5)
-
-#define __NR_syscall_count			342
+#define __NR_mlock2				342
+__SYSCALL(342, sys_mlock2, 3)
+#define __NR_munlock2				343
+__SYSCALL(343, sys_munlock2, 3)
+#define __NR_munlockall2			344
+__SYSCALL(344, sys_munlock2, 1)
+
+#define __NR_syscall_count			345
 
 /*
  * sysxtensa syscall handler
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index b45c45b..aecab5d 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -884,4 +884,8 @@ asmlinkage long sys_execveat(int dfd, const char __user *filename,
 			const char __user *const __user *argv,
 			const char __user *const __user *envp, int flags);
 
+asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
+asmlinkage long sys_munlock2(unsigned long start, size_t len, int flags);
+asmlinkage long sys_munlockall2(int flags);
+
 #endif
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index e9fe6fd..242436b 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -18,4 +18,6 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index e016bd9..e759fa2 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -709,9 +709,15 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
 __SYSCALL(__NR_bpf, sys_bpf)
 #define __NR_execveat 281
 __SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
+#define __NR_mlock2 282
+__SYSCALL(__NR_mlock2, sys_mlock2)
+#define __NR_munlock2 283
+__SYSCALL(__NR_munlock2, sys_munlock2)
+#define __NR_munlockall2 284
+__SYSCALL(__NR_munlockall2, sys_munlockall2)
 
 #undef __NR_syscalls
-#define __NR_syscalls 282
+#define __NR_syscalls 285
 
 /*
  * All syscalls below here should go away really,
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 7995ef5..63529b7 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -193,6 +193,9 @@ cond_syscall(sys_mlock);
 cond_syscall(sys_munlock);
 cond_syscall(sys_mlockall);
 cond_syscall(sys_munlockall);
+cond_syscall(sys_mlock2);
+cond_syscall(sys_munlock2);
+cond_syscall(sys_munlockall2);
 cond_syscall(sys_mincore);
 cond_syscall(sys_madvise);
 cond_syscall(sys_mremap);
diff --git a/mm/mlock.c b/mm/mlock.c
index 8e52c23..d6e61d6 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -648,6 +648,14 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 	return do_mlock(start, len, VM_LOCKED);
 }
 
+SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
+{
+	if (!flags || flags & ~MLOCK_LOCKED)
+		return -EINVAL;
+
+	return do_mlock(start, len, VM_LOCKED);
+}
+
 static int do_munlock(unsigned long start, size_t len, vm_flags_t flags)
 {
 	int ret;
@@ -667,6 +675,13 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 	return do_munlock(start, len, VM_LOCKED);
 }
 
+SYSCALL_DEFINE3(munlock2, unsigned long, start, size_t, len, int, flags)
+{
+	if (!flags || flags & ~MLOCK_LOCKED)
+		return -EINVAL;
+	return do_munlock(start, len, VM_LOCKED);
+}
+
 static int do_mlockall(int flags)
 {
 	struct vm_area_struct * vma, * prev = NULL;
@@ -756,6 +771,19 @@ SYSCALL_DEFINE0(munlockall)
 	return ret;
 }
 
+SYSCALL_DEFINE1(munlockall2, int, flags)
+{
+	int ret = -EINVAL;
+
+	if (!flags || flags & ~(MCL_CURRENT | MCL_FUTURE))
+		return ret;
+
+	down_write(&current->mm->mmap_sem);
+	ret = do_munlockall(flags);
+	up_write(&current->mm->mmap_sem);
+	return ret;
+}
+
 /*
  * Objects with different lifetime than processes (SHM_LOCK and SHM_HUGETLB
  * shm segments) get accounted against the user_struct instead.
-- 
1.9.1

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From - Thu Nov 08 21:37:39 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.comp.video.dri.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH V4 4/6] mm: mlock: Introduce VM_LOCKONFAULT and add mlock flags to enable it
Date: Tue, 21 Jul 2015 15:59:39 -0400
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Approved: news@gmane.org
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Cc: Eric B Munson <emunson@akamai.com>,
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Xref: news.gmane.org gmane.linux.kernel.mm:136036 gmane.linux.ports.alpha:3214 gmane.linux.kernel:2001551 gmane.linux.ports.mips.general:49520 gmane.linux.ports.parisc:25850 gmane.linux.ports.ppc64.devel:115643 gmane.linux.ports.sparc:21255 gmane.comp.video.dri.devel:133185 gmane.linux.kernel.cross-arch:28542 gmane.linux.kernel.api:13006
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/136036>

The cost of faulting in all memory to be locked can be very high when
working with large mappings.  If only portions of the mapping will be
used this can incur a high penalty for locking.

For the example of a large file, this is the usage pattern for a large
statical language model (probably applies to other statical or graphical
models as well).  For the security example, any application transacting
in data that cannot be swapped out (credit card data, medical records,
etc).

This patch introduces the ability to request that pages are not
pre-faulted, but are placed on the unevictable LRU when they are finally
faulted in.  This can be done area at a time via the
mlock2(MLOCK_ONFAULT) or the mlockall(MCL_ONFAULT) system calls.  These
calls can be undone via munlock2(MLOCK_ONFAULT) or
munlockall2(MCL_ONFAULT).

Applying the VM_LOCKONFAULT flag to a mapping with pages that are
already present required the addition of a function in gup.c to pin all
pages which are present in an address range.  It borrows heavily from
__mm_populate().

To keep accounting checks out of the page fault path, users are billed
for the entire mapping lock as if MLOCK_LOCKED was used.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
---
Changes from V3:
Do extensive search for VM_LOCKED and ensure that VM_LOCKONFAULT is also handled
 where appropriate

 arch/alpha/include/uapi/asm/mman.h   |  2 +
 arch/mips/include/uapi/asm/mman.h    |  2 +
 arch/parisc/include/uapi/asm/mman.h  |  2 +
 arch/powerpc/include/uapi/asm/mman.h |  2 +
 arch/sparc/include/uapi/asm/mman.h   |  2 +
 arch/tile/include/uapi/asm/mman.h    |  3 ++
 arch/xtensa/include/uapi/asm/mman.h  |  2 +
 drivers/gpu/drm/drm_vm.c             |  8 ++-
 fs/proc/task_mmu.c                   |  3 +-
 include/linux/mm.h                   |  2 +
 include/uapi/asm-generic/mman.h      |  2 +
 kernel/events/uprobes.c              |  2 +-
 kernel/fork.c                        |  2 +-
 mm/debug.c                           |  1 +
 mm/gup.c                             |  3 +-
 mm/huge_memory.c                     |  3 +-
 mm/hugetlb.c                         |  4 +-
 mm/internal.h                        |  5 +-
 mm/ksm.c                             |  2 +-
 mm/madvise.c                         |  4 +-
 mm/memory.c                          |  5 +-
 mm/mlock.c                           | 98 +++++++++++++++++++++++++-----------
 mm/mmap.c                            | 28 +++++++----
 mm/mremap.c                          |  6 +--
 mm/msync.c                           |  2 +-
 mm/rmap.c                            | 12 ++---
 mm/shmem.c                           |  2 +-
 mm/swap.c                            |  3 +-
 mm/vmscan.c                          |  2 +-
 29 files changed, 145 insertions(+), 69 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index ec72436..77ae8db 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -37,8 +37,10 @@
 
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
+#define MCL_ONFAULT	32768		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 67c1cdf..71ed81d 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -61,11 +61,13 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 /*
  * Flags for mlock
  */
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index daab994..c0871ce 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -31,8 +31,10 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 189e85f..f93f7eb 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -22,8 +22,10 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 13d51be..8cd2ebc 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -17,8 +17,10 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index f69ce48..acdd013 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -36,11 +36,14 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
 
 /*
  * Flags for mlock
  */
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 11f354f..5725a15 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -74,11 +74,13 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 /*
  * Flags for mlock
  */
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c
index aab49ee..dfbcfc2 100644
--- a/drivers/gpu/drm/drm_vm.c
+++ b/drivers/gpu/drm/drm_vm.c
@@ -699,9 +699,15 @@ int drm_vma_info(struct seq_file *m, void *data)
 		   (void *)(unsigned long)virt_to_phys(high_memory));
 
 	list_for_each_entry(pt, &dev->vmalist, head) {
+		char lock_flag = '-';
+
 		vma = pt->vma;
 		if (!vma)
 			continue;
+		if (vma->vm_flags & VM_LOCKED)
+			lock_flag = 'l';
+		else if (vma->vm_flags & VM_LOCKONFAULT)
+			lock_flag = 'f';
 		seq_printf(m,
 			   "\n%5d 0x%pK-0x%pK %c%c%c%c%c%c 0x%08lx000",
 			   pt->pid,
@@ -710,7 +716,7 @@ int drm_vma_info(struct seq_file *m, void *data)
 			   vma->vm_flags & VM_WRITE ? 'w' : '-',
 			   vma->vm_flags & VM_EXEC ? 'x' : '-',
 			   vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
-			   vma->vm_flags & VM_LOCKED ? 'l' : '-',
+			   lock_flag,
 			   vma->vm_flags & VM_IO ? 'i' : '-',
 			   vma->vm_pgoff);
 
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index ca1e091..2c435a7 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -579,6 +579,7 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma)
 #ifdef CONFIG_X86_INTEL_MPX
 		[ilog2(VM_MPX)]		= "mp",
 #endif
+		[ilog2(VM_LOCKONFAULT)]	= "lf",
 		[ilog2(VM_LOCKED)]	= "lo",
 		[ilog2(VM_IO)]		= "io",
 		[ilog2(VM_SEQ_READ)]	= "sr",
@@ -654,7 +655,7 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
 		   mss.swap >> 10,
 		   vma_kernel_pagesize(vma) >> 10,
 		   vma_mmu_pagesize(vma) >> 10,
-		   (vma->vm_flags & VM_LOCKED) ?
+		   (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) ?
 			(unsigned long)(mss.pss >> (10 + PSS_SHIFT)) : 0);
 
 	show_smap_vma_flags(m, vma);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 2e872f9..e78544f 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -127,6 +127,7 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_PFNMAP	0x00000400	/* Page-ranges managed without "struct page", just pure PFN */
 #define VM_DENYWRITE	0x00000800	/* ETXTBSY on write attempts.. */
 
+#define VM_LOCKONFAULT	0x00001000	/* Lock the pages covered when they are faulted in */
 #define VM_LOCKED	0x00002000
 #define VM_IO           0x00004000	/* Memory mapped I/O or similar */
 
@@ -1865,6 +1866,7 @@ static inline void mm_populate(unsigned long addr, unsigned long len)
 	/* Ignore errors */
 	(void) __mm_populate(addr, len, 1);
 }
+extern int mm_lock_present(unsigned long addr, unsigned long start);
 #else
 static inline void mm_populate(unsigned long addr, unsigned long len) {}
 #endif
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index 242436b..555aab0 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -17,7 +17,9 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index cb346f2..882c9f6 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -201,7 +201,7 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr,
 		try_to_free_swap(page);
 	pte_unmap_unlock(ptep, ptl);
 
-	if (vma->vm_flags & VM_LOCKED)
+	if (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT))
 		munlock_vma_page(page);
 	put_page(page);
 
diff --git a/kernel/fork.c b/kernel/fork.c
index dbd9b8d..a949228 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -454,7 +454,7 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 		tmp->vm_mm = mm;
 		if (anon_vma_fork(tmp, mpnt))
 			goto fail_nomem_anon_vma_fork;
-		tmp->vm_flags &= ~VM_LOCKED;
+		tmp->vm_flags &= ~(VM_LOCKED | VM_LOCKONFAULT);
 		tmp->vm_next = tmp->vm_prev = NULL;
 		file = tmp->vm_file;
 		if (file) {
diff --git a/mm/debug.c b/mm/debug.c
index 76089dd..25176bb 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -121,6 +121,7 @@ static const struct trace_print_flags vmaflags_names[] = {
 	{VM_GROWSDOWN,			"growsdown"	},
 	{VM_PFNMAP,			"pfnmap"	},
 	{VM_DENYWRITE,			"denywrite"	},
+	{VM_LOCKONFAULT,		"lockonfault"	},
 	{VM_LOCKED,			"locked"	},
 	{VM_IO,				"io"		},
 	{VM_SEQ_READ,			"seqread"	},
diff --git a/mm/gup.c b/mm/gup.c
index 233ef17..097a22a 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -92,7 +92,8 @@ retry:
 		 */
 		mark_page_accessed(page);
 	}
-	if ((flags & FOLL_POPULATE) && (vma->vm_flags & VM_LOCKED)) {
+	if ((flags & FOLL_POPULATE) &&
+	    (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT))) {
 		/*
 		 * The preliminary mapping check is mainly to avoid the
 		 * pointless overhead of lock_page on the ZERO_PAGE
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index c107094..7985e35 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1238,7 +1238,8 @@ struct page *follow_trans_huge_pmd(struct vm_area_struct *vma,
 					  pmd, _pmd,  1))
 			update_mmu_cache_pmd(vma, addr, pmd);
 	}
-	if ((flags & FOLL_POPULATE) && (vma->vm_flags & VM_LOCKED)) {
+	if ((flags & FOLL_POPULATE) &&
+	    (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT))) {
 		if (page->mapping && trylock_page(page)) {
 			lru_add_drain();
 			if (page->mapping)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index a8c3087..82caa48 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -3764,8 +3764,8 @@ static unsigned long page_table_shareable(struct vm_area_struct *svma,
 	unsigned long s_end = sbase + PUD_SIZE;
 
 	/* Allow segments to share if only one is marked locked */
-	unsigned long vm_flags = vma->vm_flags & ~VM_LOCKED;
-	unsigned long svm_flags = svma->vm_flags & ~VM_LOCKED;
+	unsigned long vm_flags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
+	unsigned long svm_flags = svma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
 
 	/*
 	 * match the virtual addresses, permission and the alignment of the
diff --git a/mm/internal.h b/mm/internal.h
index 36b23f1..53e140e 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -246,10 +246,11 @@ void __vma_link_list(struct mm_struct *mm, struct vm_area_struct *vma,
 extern long populate_vma_page_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end, int *nonblocking);
 extern void munlock_vma_pages_range(struct vm_area_struct *vma,
-			unsigned long start, unsigned long end);
+			unsigned long start, unsigned long end, vm_flags_t to_drop);
 static inline void munlock_vma_pages_all(struct vm_area_struct *vma)
 {
-	munlock_vma_pages_range(vma, vma->vm_start, vma->vm_end);
+	munlock_vma_pages_range(vma, vma->vm_start, vma->vm_end,
+				VM_LOCKED | VM_LOCKONFAULT);
 }
 
 /*
diff --git a/mm/ksm.c b/mm/ksm.c
index 7ee101e..5d91b7d 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1058,7 +1058,7 @@ static int try_to_merge_one_page(struct vm_area_struct *vma,
 			err = replace_page(vma, page, kpage, orig_pte);
 	}
 
-	if ((vma->vm_flags & VM_LOCKED) && kpage && !err) {
+	if ((vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) && kpage && !err) {
 		munlock_vma_page(page);
 		if (!PageMlocked(kpage)) {
 			unlock_page(page);
diff --git a/mm/madvise.c b/mm/madvise.c
index 64bb8a2..c9d9296 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -279,7 +279,7 @@ static long madvise_dontneed(struct vm_area_struct *vma,
 			     unsigned long start, unsigned long end)
 {
 	*prev = vma;
-	if (vma->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP))
+	if (vma->vm_flags & (VM_LOCKED|VM_LOCKONFAULT|VM_HUGETLB|VM_PFNMAP))
 		return -EINVAL;
 
 	zap_page_range(vma, start, end - start, NULL);
@@ -300,7 +300,7 @@ static long madvise_remove(struct vm_area_struct *vma,
 
 	*prev = NULL;	/* tell sys_madvise we drop mmap_sem */
 
-	if (vma->vm_flags & (VM_LOCKED | VM_HUGETLB))
+	if (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT | VM_HUGETLB))
 		return -EINVAL;
 
 	f = vma->vm_file;
diff --git a/mm/memory.c b/mm/memory.c
index 388dcf9..2b19e0b 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2165,7 +2165,7 @@ static int wp_page_copy(struct mm_struct *mm, struct vm_area_struct *vma,
 		 * Don't let another task, with possibly unlocked vma,
 		 * keep the mlocked page.
 		 */
-		if (page_copied && (vma->vm_flags & VM_LOCKED)) {
+		if (page_copied && (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT))) {
 			lock_page(old_page);	/* LRU manipulation */
 			munlock_vma_page(old_page);
 			unlock_page(old_page);
@@ -2577,7 +2577,8 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	}
 
 	swap_free(entry);
-	if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page))
+	if (vm_swap_full() || (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) ||
+	    PageMlocked(page))
 		try_to_free_swap(page);
 	unlock_page(page);
 	if (page != swapcache) {
diff --git a/mm/mlock.c b/mm/mlock.c
index d6e61d6..8b45be1 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -406,23 +406,22 @@ static unsigned long __munlock_pagevec_fill(struct pagevec *pvec,
  * @vma - vma containing range to be munlock()ed.
  * @start - start address in @vma of the range
  * @end - end of range in @vma.
+ * @to_drop - the VMA flags we want to drop from the specified range
  *
- *  For mremap(), munmap() and exit().
+ *  For mremap(), munmap(), munlock(), and exit().
  *
- * Called with @vma VM_LOCKED.
- *
- * Returns with VM_LOCKED cleared.  Callers must be prepared to
+ * Returns with specified flags cleared.  Callers must be prepared to
  * deal with this.
  *
- * We don't save and restore VM_LOCKED here because pages are
+ * We don't save and restore specified flags here because pages are
  * still on lru.  In unmap path, pages might be scanned by reclaim
  * and re-mlocked by try_to_{munlock|unmap} before we unmap and
  * free them.  This will result in freeing mlocked pages.
  */
-void munlock_vma_pages_range(struct vm_area_struct *vma,
-			     unsigned long start, unsigned long end)
+void munlock_vma_pages_range(struct vm_area_struct *vma, unsigned long start,
+			     unsigned long end, vm_flags_t to_drop)
 {
-	vma->vm_flags &= ~VM_LOCKED;
+	vma->vm_flags &= ~to_drop;
 
 	while (start < end) {
 		struct page *page = NULL;
@@ -502,11 +501,12 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
 	pgoff_t pgoff;
 	int nr_pages;
 	int ret = 0;
-	int lock = !!(newflags & VM_LOCKED);
+	int lock = !!(newflags & (VM_LOCKED | VM_LOCKONFAULT));
 
 	if (newflags == vma->vm_flags || (vma->vm_flags & VM_SPECIAL) ||
 	    is_vm_hugetlb_page(vma) || vma == get_gate_vma(current->mm))
-		goto out;	/* don't set VM_LOCKED,  don't count */
+		/* don't set VM_LOCKED or VM_LOCKONFAULT and don't count */
+		goto out;
 
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,
@@ -546,7 +546,11 @@ success:
 	if (lock)
 		vma->vm_flags = newflags;
 	else
-		munlock_vma_pages_range(vma, start, end);
+		/*
+		 * We need to tell which VM_LOCK* flag(s) we are clearing here
+		 */
+		munlock_vma_pages_range(vma, start, end,
+					(vma->vm_flags & ~(newflags)));
 
 out:
 	*prev = vma;
@@ -581,10 +585,12 @@ static int apply_vma_flags(unsigned long start, size_t len,
 		/* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
 
 		newflags = vma->vm_flags;
-		if (add_flags)
+		if (add_flags) {
+			newflags &= ~(VM_LOCKED | VM_LOCKONFAULT);
 			newflags |= flags;
-		else
+		} else {
 			newflags &= ~flags;
+		}
 
 		tmp = vma->vm_end;
 		if (tmp > end)
@@ -637,9 +643,15 @@ static int do_mlock(unsigned long start, size_t len, vm_flags_t flags)
 	if (error)
 		return error;
 
-	error = __mm_populate(start, len, 0);
-	if (error)
-		return __mlock_posix_error_return(error);
+	if (flags & (VM_LOCKED | VM_LOCKONFAULT)) {
+		if (flags & VM_LOCKED)
+			error = __mm_populate(start, len, 0);
+		else
+			error = mm_lock_present(start, len);
+		if (error)
+			return __mlock_posix_error_return(error);
+	}
+
 	return 0;
 }
 
@@ -650,10 +662,14 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 
 SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
 {
-	if (!flags || flags & ~MLOCK_LOCKED)
+	if (!flags || (flags & ~(MLOCK_LOCKED | MLOCK_ONFAULT)) ||
+	    flags == (MLOCK_LOCKED | MLOCK_ONFAULT))
 		return -EINVAL;
 
-	return do_mlock(start, len, VM_LOCKED);
+	if (flags & MLOCK_LOCKED)
+		return do_mlock(start, len, VM_LOCKED);
+
+	return do_mlock(start, len, VM_LOCKONFAULT);
 }
 
 static int do_munlock(unsigned long start, size_t len, vm_flags_t flags)
@@ -672,31 +688,46 @@ static int do_munlock(unsigned long start, size_t len, vm_flags_t flags)
 
 SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 {
-	return do_munlock(start, len, VM_LOCKED);
+	return do_munlock(start, len, VM_LOCKED | VM_LOCKONFAULT);
 }
 
 SYSCALL_DEFINE3(munlock2, unsigned long, start, size_t, len, int, flags)
 {
-	if (!flags || flags & ~MLOCK_LOCKED)
+	vm_flags_t to_clear = 0;
+
+	if (!flags || flags & ~(MLOCK_LOCKED | MLOCK_ONFAULT))
 		return -EINVAL;
-	return do_munlock(start, len, VM_LOCKED);
+
+	if (flags & MLOCK_LOCKED)
+		to_clear |= VM_LOCKED;
+	if (flags & MLOCK_ONFAULT)
+		to_clear |= VM_LOCKONFAULT;
+
+	return do_munlock(start, len, to_clear);
 }
 
 static int do_mlockall(int flags)
 {
 	struct vm_area_struct * vma, * prev = NULL;
+	vm_flags_t to_add;
 
 	if (flags & MCL_FUTURE)
 		current->mm->def_flags |= VM_LOCKED;
 	if (flags == MCL_FUTURE)
 		goto out;
 
+	if (flags & MCL_ONFAULT) {
+		current->mm->def_flags |= VM_LOCKONFAULT;
+		to_add = VM_LOCKONFAULT;
+	} else {
+		to_add = VM_LOCKED;
+	}
+
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
-		if (flags & MCL_CURRENT)
-			newflags |= VM_LOCKED;
+		newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
+		newflags |= to_add;
 
 		/* Ignore errors */
 		mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);
@@ -711,7 +742,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	unsigned long lock_limit;
 	int ret = -EINVAL;
 
-	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
+	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT)) ||
+	    (flags & (MCL_FUTURE | MCL_ONFAULT)) == (MCL_FUTURE | MCL_ONFAULT))
 		goto out;
 
 	ret = -EPERM;
@@ -740,18 +772,24 @@ out:
 static int do_munlockall(int flags)
 {
 	struct vm_area_struct * vma, * prev = NULL;
+	vm_flags_t to_clear = 0;
 
 	if (flags & MCL_FUTURE)
 		current->mm->def_flags &= ~VM_LOCKED;
+	if (flags & MCL_ONFAULT)
+		current->mm->def_flags &= ~VM_LOCKONFAULT;
 	if (flags == MCL_FUTURE)
 		goto out;
 
+	if (flags & MCL_CURRENT)
+		to_clear |= VM_LOCKED;
+	if (flags & MCL_ONFAULT)
+		to_clear |= VM_LOCKONFAULT;
+
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
-		newflags = vma->vm_flags;
-		if (flags & MCL_CURRENT)
-			newflags &= ~VM_LOCKED;
+		newflags = vma->vm_flags & ~to_clear;
 
 		/* Ignore errors */
 		mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);
@@ -766,7 +804,7 @@ SYSCALL_DEFINE0(munlockall)
 	int ret;
 
 	down_write(&current->mm->mmap_sem);
-	ret = do_munlockall(MCL_CURRENT | MCL_FUTURE);
+	ret = do_munlockall(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT);
 	up_write(&current->mm->mmap_sem);
 	return ret;
 }
@@ -775,7 +813,7 @@ SYSCALL_DEFINE1(munlockall2, int, flags)
 {
 	int ret = -EINVAL;
 
-	if (!flags || flags & ~(MCL_CURRENT | MCL_FUTURE))
+	if (!flags || flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT))
 		return ret;
 
 	down_write(&current->mm->mmap_sem);
diff --git a/mm/mmap.c b/mm/mmap.c
index aa632ad..de89be4 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1232,8 +1232,8 @@ static inline int mlock_future_check(struct mm_struct *mm,
 {
 	unsigned long locked, lock_limit;
 
-	/*  mlock MCL_FUTURE? */
-	if (flags & VM_LOCKED) {
+	/*  mlock MCL_FUTURE or MCL_ONFAULT? */
+	if (flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 		locked = len >> PAGE_SHIFT;
 		locked += mm->locked_vm;
 		lock_limit = rlimit(RLIMIT_MEMLOCK);
@@ -1646,12 +1646,12 @@ out:
 	perf_event_mmap(vma);
 
 	vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
-	if (vm_flags & VM_LOCKED) {
+	if (vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 		if (!((vm_flags & VM_SPECIAL) || is_vm_hugetlb_page(vma) ||
 					vma == get_gate_vma(current->mm)))
 			mm->locked_vm += (len >> PAGE_SHIFT);
 		else
-			vma->vm_flags &= ~VM_LOCKED;
+			vma->vm_flags &= ~(VM_LOCKED | VM_LOCKONFAULT);
 	}
 
 	if (file)
@@ -2104,7 +2104,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
 		return -ENOMEM;
 
 	/* mlock limit tests */
-	if (vma->vm_flags & VM_LOCKED) {
+	if (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 		unsigned long locked;
 		unsigned long limit;
 		locked = mm->locked_vm + grow;
@@ -2128,7 +2128,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
 		return -ENOMEM;
 
 	/* Ok, everything looks good - let it rip */
-	if (vma->vm_flags & VM_LOCKED)
+	if (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT))
 		mm->locked_vm += grow;
 	vm_stat_account(mm, vma->vm_flags, vma->vm_file, grow);
 	return 0;
@@ -2583,7 +2583,7 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
 	if (mm->locked_vm) {
 		struct vm_area_struct *tmp = vma;
 		while (tmp && tmp->vm_start < end) {
-			if (tmp->vm_flags & VM_LOCKED) {
+			if (tmp->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 				mm->locked_vm -= vma_pages(tmp);
 				munlock_vma_pages_all(tmp);
 			}
@@ -2636,6 +2636,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
 	unsigned long populate = 0;
 	unsigned long ret = -EINVAL;
 	struct file *file;
+	vm_flags_t drop_lock_flag = 0;
 
 	pr_warn_once("%s (%d) uses deprecated remap_file_pages() syscall. "
 			"See Documentation/vm/remap_file_pages.txt.\n",
@@ -2675,10 +2676,15 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
 	flags |= MAP_SHARED | MAP_FIXED | MAP_POPULATE;
 	if (vma->vm_flags & VM_LOCKED) {
 		flags |= MAP_LOCKED;
-		/* drop PG_Mlocked flag for over-mapped range */
-		munlock_vma_pages_range(vma, start, start + size);
+		drop_lock_flag = VM_LOCKED;
+	} else if (vma->vm_flags & VM_LOCKONFAULT) {
+		drop_lock_flag = VM_LOCKONFAULT;
 	}
 
+	if (drop_lock_flag)
+		/* drop PG_Mlocked flag for over-mapped range */
+		munlock_vma_pages_range(vma, start, start + size, VM_LOCKED);
+
 	file = get_file(vma->vm_file);
 	ret = do_mmap_pgoff(vma->vm_file, start, size,
 			prot, flags, pgoff, &populate);
@@ -2781,7 +2787,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
 out:
 	perf_event_mmap(vma);
 	mm->total_vm += len >> PAGE_SHIFT;
-	if (flags & VM_LOCKED)
+	if (flags & (VM_LOCKED | VM_LOCKONFAULT))
 		mm->locked_vm += (len >> PAGE_SHIFT);
 	vma->vm_flags |= VM_SOFTDIRTY;
 	return addr;
@@ -2816,7 +2822,7 @@ void exit_mmap(struct mm_struct *mm)
 	if (mm->locked_vm) {
 		vma = mm->mmap;
 		while (vma) {
-			if (vma->vm_flags & VM_LOCKED)
+			if (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT))
 				munlock_vma_pages_all(vma);
 			vma = vma->vm_next;
 		}
diff --git a/mm/mremap.c b/mm/mremap.c
index a7c93ec..44d4c44 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -335,7 +335,7 @@ static unsigned long move_vma(struct vm_area_struct *vma,
 			vma->vm_next->vm_flags |= VM_ACCOUNT;
 	}
 
-	if (vm_flags & VM_LOCKED) {
+	if (vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 		mm->locked_vm += new_len >> PAGE_SHIFT;
 		*locked = true;
 	}
@@ -371,7 +371,7 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr,
 			return ERR_PTR(-EINVAL);
 	}
 
-	if (vma->vm_flags & VM_LOCKED) {
+	if (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 		unsigned long locked, lock_limit;
 		locked = mm->locked_vm << PAGE_SHIFT;
 		lock_limit = rlimit(RLIMIT_MEMLOCK);
@@ -548,7 +548,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
 			}
 
 			vm_stat_account(mm, vma->vm_flags, vma->vm_file, pages);
-			if (vma->vm_flags & VM_LOCKED) {
+			if (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 				mm->locked_vm += pages;
 				locked = true;
 				new_addr = addr;
diff --git a/mm/msync.c b/mm/msync.c
index bb04d53..1183183 100644
--- a/mm/msync.c
+++ b/mm/msync.c
@@ -73,7 +73,7 @@ SYSCALL_DEFINE3(msync, unsigned long, start, size_t, len, int, flags)
 		}
 		/* Here vma->vm_start <= start < vma->vm_end. */
 		if ((flags & MS_INVALIDATE) &&
-				(vma->vm_flags & VM_LOCKED)) {
+				(vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT))) {
 			error = -EBUSY;
 			goto out_unlock;
 		}
diff --git a/mm/rmap.c b/mm/rmap.c
index 171b687..3e91372 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -742,9 +742,9 @@ static int page_referenced_one(struct page *page, struct vm_area_struct *vma,
 		if (!pmd)
 			return SWAP_AGAIN;
 
-		if (vma->vm_flags & VM_LOCKED) {
+		if (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 			spin_unlock(ptl);
-			pra->vm_flags |= VM_LOCKED;
+			pra->vm_flags |= (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT));
 			return SWAP_FAIL; /* To break the loop */
 		}
 
@@ -763,9 +763,9 @@ static int page_referenced_one(struct page *page, struct vm_area_struct *vma,
 		if (!pte)
 			return SWAP_AGAIN;
 
-		if (vma->vm_flags & VM_LOCKED) {
+		if (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 			pte_unmap_unlock(pte, ptl);
-			pra->vm_flags |= VM_LOCKED;
+			pra->vm_flags |= (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT));
 			return SWAP_FAIL; /* To break the loop */
 		}
 
@@ -1205,7 +1205,7 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
 	 * skipped over this mm) then we should reactivate it.
 	 */
 	if (!(flags & TTU_IGNORE_MLOCK)) {
-		if (vma->vm_flags & VM_LOCKED)
+		if (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT))
 			goto out_mlock;
 
 		if (flags & TTU_MUNLOCK)
@@ -1315,7 +1315,7 @@ out_mlock:
 	 * page is actually mlocked.
 	 */
 	if (down_read_trylock(&vma->vm_mm->mmap_sem)) {
-		if (vma->vm_flags & VM_LOCKED) {
+		if (vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) {
 			mlock_vma_page(page);
 			ret = SWAP_MLOCK;
 		}
diff --git a/mm/shmem.c b/mm/shmem.c
index 4caf8ed..9ddf2ca 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -754,7 +754,7 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc)
 	index = page->index;
 	inode = mapping->host;
 	info = SHMEM_I(inode);
-	if (info->flags & VM_LOCKED)
+	if (info->flags & (VM_LOCKED | VM_LOCKONFAULT))
 		goto redirty;
 	if (!total_swap_pages)
 		goto redirty;
diff --git a/mm/swap.c b/mm/swap.c
index a3a0a2f..3580a21 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -710,7 +710,8 @@ void lru_cache_add_active_or_unevictable(struct page *page,
 {
 	VM_BUG_ON_PAGE(PageLRU(page), page);
 
-	if (likely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) != VM_LOCKED)) {
+	if (likely((vma->vm_flags & (VM_LOCKED | VM_LOCKONFAULT)) == 0) ||
+		   (vma->vm_flags & VM_SPECIAL)) {
 		SetPageActive(page);
 		lru_cache_add(page);
 		return;
diff --git a/mm/vmscan.c b/mm/vmscan.c
index e61445d..019d306 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -804,7 +804,7 @@ static enum page_references page_check_references(struct page *page,
 	 * Mlock lost the isolation race with us.  Let try_to_unmap()
 	 * move the page to the unevictable list.
 	 */
-	if (vm_flags & VM_LOCKED)
+	if (vm_flags & (VM_LOCKED | VM_LOCKONFAULT))
 		return PAGEREF_RECLAIM;
 
 	if (referenced_ptes) {
-- 
1.9.1

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From - Thu Nov 08 21:37:39 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH V4 0/6] Allow user to request memory to be locked on page fault
Date: Tue, 21 Jul 2015 15:59:35 -0400
Lines: 254
Approved: news@gmane.org
Message-ID: <1437508781-28655-1-git-send-email-emunson@akamai.com>
NNTP-Posting-Host: plane.gmane.org
X-Trace: ger.gmane.org 1437508826 8095 80.91.229.3 (21 Jul 2015 20:00:26 GMT)
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NNTP-Posting-Date: Tue, 21 Jul 2015 20:00:26 +0000 (UTC)
Cc: Eric B Munson <emunson@akamai.com>,
	Shuah Khan <shuahkh@osg.samsung.com>,
	Michal Hocko <mhocko@suse.cz>,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	Vlastimil Babka <vbabka@suse.cz>,
	Jonathan Corbet <corbet@lwn.net>,
	linux-alpha@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-mips@linux-mips.org,
	linux-parisc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org,
	sparclinux@vger.kernel.org,
	linux-xtensa@linux-xtensa.org,
	linux-mm@kvack.org,
	linux-arch@vger.kernel.org,
	linux-api@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
Original-X-From: owner-linux-mm@kvack.org Tue Jul 21 22:00:15 2015
Return-path: <owner-linux-mm@kvack.org>
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mlock() allows a user to control page out of program memory, but this
comes at the cost of faulting in the entire mapping when it is
allocated.  For large mappings where the entire area is not necessary
this is not ideal.  Instead of forcing all locked pages to be present
when they are allocated, this set creates a middle ground.  Pages are
marked to be placed on the unevictable LRU (locked) when they are first
used, but they are not faulted in by the mlock call.

This series introduces a new mlock() system call that takes a flags
argument along with the start address and size.  This flags argument
gives the caller the ability to request memory be locked in the
traditional way, or to be locked after the page is faulted in.  New
calls are added for munlock() and munlockall() which give the called a
way to specify which flags are supposed to be cleared.  A new MCL flag
is added to mirror the lock on fault behavior from mlock() in
mlockall().  Finally, a flag for mmap() is added that allows a user to
specify that the covered are should not be paged out, but only after the
memory has been used the first time.

There are two main use cases that this set covers.  The first is the
security focussed mlock case.  A buffer is needed that cannot be written
to swap.  The maximum size is known, but on average the memory used is
significantly less than this maximum.  With lock on fault, the buffer
is guaranteed to never be paged out without consuming the maximum size
every time such a buffer is created.

The second use case is focussed on performance.  Portions of a large
file are needed and we want to keep the used portions in memory once
accessed.  This is the case for large graphical models where the path
through the graph is not known until run time.  The entire graph is
unlikely to be used in a given invocation, but once a node has been
used it needs to stay resident for further processing.  Given these
constraints we have a number of options.  We can potentially waste a
large amount of memory by mlocking the entire region (this can also
cause a significant stall at startup as the entire file is read in).
We can mlock every page as we access them without tracking if the page
is already resident but this introduces large overhead for each access.
The third option is mapping the entire region with PROT_NONE and using
a signal handler for SIGSEGV to mprotect(PROT_READ) and mlock() the
needed page.  Doing this page at a time adds a significant performance
penalty.  Batching can be used to mitigate this overhead, but in order
to safely avoid trying to mprotect pages outside of the mapping, the
boundaries of each mapping to be used in this way must be tracked and
available to the signal handler.  This is precisely what the mm system
in the kernel should already be doing.

For mlock(MLOCK_ONFAULT) and mmap(MAP_LOCKONFAULT) the user is charged
against RLIMIT_MEMLOCK as if mlock(MLOCK_LOCKED) or mmap(MAP_LOCKED) was
used, so when the VMA is created not when the pages are faulted in.  For
mlockall(MCL_ONFAULT) the user is charged as if MCL_FUTURE was used.
This decision was made to keep the accounting checks out of the page
fault path.

To illustrate the benefit of this set I wrote a test program that mmaps
a 5 GB file filled with random data and then makes 15,000,000 accesses
to random addresses in that mapping.  The test program was run 20 times
for each setup.  Results are reported for two program portions, setup
and execution.  The setup phase is calling mmap and optionally mlock on
the entire region.  For most experiments this is trivial, but it
highlights the cost of faulting in the entire region.  Results are
averages across the 20 runs in milliseconds.

mmap with mlock(MLOCK_LOCKED) on entire range:
Setup avg:      8228.666
Processing avg: 8274.257

mmap with mlock(MLOCK_LOCKED) before each access:
Setup avg:      0.113
Processing avg: 90993.552

mmap with PROT_NONE and signal handler and batch size of 1 page:
With the default value in max_map_count, this gets ENOMEM as I attempt
to change the permissions, after upping the sysctl significantly I get:
Setup avg:      0.058
Processing avg: 69488.073

mmap with PROT_NONE and signal handler and batch size of 8 pages:
Setup avg:      0.068
Processing avg: 38204.116

mmap with PROT_NONE and signal handler and batch size of 16 pages:
Setup avg:      0.044
Processing avg: 29671.180

mmap with mlock(MLOCK_ONFAULT) on entire range:
Setup avg:      0.189
Processing avg: 17904.899

The signal handler in the batch cases faulted in memory in two steps to
avoid having to know the start and end of the faulting mapping.  The
first step covers the page that caused the fault as we know that it will
be possible to lock.  The second step speculatively tries to mlock and
mprotect the batch size - 1 pages that follow.  There may be a clever
way to avoid this without having the program track each mapping to be
covered by this handeler in a globally accessible structure, but I could
not find it.  It should be noted that with a large enough batch size
this two step fault handler can still cause the program to crash if it
reaches far beyond the end of the mapping.

These results show that if the developer knows that a majority of the
mapping will be used, it is better to try and fault it in at once,
otherwise MAP_LOCKONFAULT is significantly faster.

The performance cost of these patches are minimal on the two benchmarks
I have tested (stream and kernbench).  The following are the average
values across 20 runs of stream and 10 runs of kernbench after a warmup
run whose results were discarded.

Avg throughput in MB/s from stream using 1000000 element arrays
Test     4.2-rc1      4.2-rc1+lock-on-fault
Copy:    10,566.5     10,421
Scale:   10,685       10,503.5
Add:     12,044.1     11,814.2
Triad:   12,064.8     11,846.3

Kernbench optimal load
                 4.2-rc1  4.2-rc1+lock-on-fault
Elapsed Time     78.453   78.991
User Time        64.2395  65.2355
System Time      9.7335   9.7085
Context Switches 22211.5  22412.1
Sleeps           14965.3  14956.1

---
Changes from V3:
Ensure that pages present when mlock2(MLOCK_ONFAULT) is called are locked
Ensure that VM_LOCKONFAULT is handled in cases that used to only check VM_LOCKED
Add tests for new system calls
Add missing syscall entries, fix NR_syscalls on multiple arch's
Add missing MAP_LOCKONFAULT for tile

Changes from V2:
Added new system calls for mlock, munlock, and munlockall with added
flags arguments for controlling how memory is locked or unlocked.

Eric B Munson (6):
  mm: mlock: Refactor mlock, munlock, and munlockall code
  mm: mlock: Add new mlock, munlock, and munlockall system calls
  mm: gup: Add mm_lock_present()
  mm: mlock: Introduce VM_LOCKONFAULT and add mlock flags to enable it
  mm: mmap: Add mmap flag to request VM_LOCKONFAULT
  selftests: vm: Add tests for lock on fault

 arch/alpha/include/asm/unistd.h             |   2 +-
 arch/alpha/include/uapi/asm/mman.h          |   5 +
 arch/alpha/include/uapi/asm/unistd.h        |   3 +
 arch/alpha/kernel/systbls.S                 |   3 +
 arch/arm/include/asm/unistd.h               |   2 +-
 arch/arm/include/uapi/asm/unistd.h          |   3 +
 arch/arm/kernel/calls.S                     |   3 +
 arch/arm64/include/asm/unistd32.h           |   6 +
 arch/avr32/include/uapi/asm/unistd.h        |   3 +
 arch/avr32/kernel/syscall_table.S           |   3 +
 arch/blackfin/include/uapi/asm/unistd.h     |   3 +
 arch/blackfin/mach-common/entry.S           |   3 +
 arch/cris/arch-v10/kernel/entry.S           |   3 +
 arch/cris/arch-v32/kernel/entry.S           |   3 +
 arch/frv/kernel/entry.S                     |   3 +
 arch/ia64/include/asm/unistd.h              |   2 +-
 arch/ia64/include/uapi/asm/unistd.h         |   3 +
 arch/ia64/kernel/entry.S                    |   3 +
 arch/m32r/kernel/entry.S                    |   3 +
 arch/m32r/kernel/syscall_table.S            |   3 +
 arch/m68k/include/asm/unistd.h              |   2 +-
 arch/m68k/include/uapi/asm/unistd.h         |   3 +
 arch/m68k/kernel/syscalltable.S             |   3 +
 arch/microblaze/include/uapi/asm/unistd.h   |   3 +
 arch/microblaze/kernel/syscall_table.S      |   3 +
 arch/mips/include/uapi/asm/mman.h           |   8 +
 arch/mips/include/uapi/asm/unistd.h         |  21 +-
 arch/mips/kernel/scall32-o32.S              |   3 +
 arch/mips/kernel/scall64-64.S               |   3 +
 arch/mips/kernel/scall64-n32.S              |   3 +
 arch/mips/kernel/scall64-o32.S              |   3 +
 arch/mn10300/kernel/entry.S                 |   3 +
 arch/parisc/include/uapi/asm/mman.h         |   5 +
 arch/parisc/include/uapi/asm/unistd.h       |   5 +-
 arch/powerpc/include/uapi/asm/mman.h        |   5 +
 arch/powerpc/include/uapi/asm/unistd.h      |   3 +
 arch/s390/include/uapi/asm/unistd.h         |   5 +-
 arch/s390/kernel/compat_wrapper.c           |   3 +
 arch/s390/kernel/syscalls.S                 |   3 +
 arch/sh/kernel/syscalls_32.S                |   3 +
 arch/sparc/include/uapi/asm/mman.h          |   5 +
 arch/sparc/include/uapi/asm/unistd.h        |   5 +-
 arch/sparc/kernel/systbls_32.S              |   2 +-
 arch/sparc/kernel/systbls_64.S              |   4 +-
 arch/tile/include/uapi/asm/mman.h           |   9 +
 arch/x86/entry/syscalls/syscall_32.tbl      |   3 +
 arch/x86/entry/syscalls/syscall_64.tbl      |   3 +
 arch/xtensa/include/uapi/asm/mman.h         |   8 +
 arch/xtensa/include/uapi/asm/unistd.h       |  10 +-
 drivers/gpu/drm/drm_vm.c                    |   8 +-
 fs/proc/task_mmu.c                          |   3 +-
 include/linux/mm.h                          |   2 +
 include/linux/mman.h                        |   3 +-
 include/linux/syscalls.h                    |   4 +
 include/uapi/asm-generic/mman.h             |   5 +
 include/uapi/asm-generic/unistd.h           |   8 +-
 kernel/events/core.c                        |   2 +
 kernel/events/uprobes.c                     |   2 +-
 kernel/fork.c                               |   2 +-
 kernel/sys_ni.c                             |   3 +
 mm/debug.c                                  |   1 +
 mm/gup.c                                    | 175 +++++++-
 mm/huge_memory.c                            |   3 +-
 mm/hugetlb.c                                |   4 +-
 mm/internal.h                               |   5 +-
 mm/ksm.c                                    |   2 +-
 mm/madvise.c                                |   4 +-
 mm/memory.c                                 |   5 +-
 mm/mlock.c                                  | 159 +++++--
 mm/mmap.c                                   |  32 +-
 mm/mremap.c                                 |   6 +-
 mm/msync.c                                  |   2 +-
 mm/rmap.c                                   |  12 +-
 mm/shmem.c                                  |   2 +-
 mm/swap.c                                   |   3 +-
 mm/vmscan.c                                 |   2 +-
 tools/testing/selftests/vm/Makefile         |   3 +
 tools/testing/selftests/vm/lock-on-fault.c  | 344 +++++++++++++++
 tools/testing/selftests/vm/mlock2-tests.c   | 621 ++++++++++++++++++++++++++++
 tools/testing/selftests/vm/on-fault-limit.c |  47 +++
 tools/testing/selftests/vm/run_vmtests      |  33 ++
 81 files changed, 1604 insertions(+), 104 deletions(-)
 create mode 100644 tools/testing/selftests/vm/lock-on-fault.c
 create mode 100644 tools/testing/selftests/vm/mlock2-tests.c
 create mode 100644 tools/testing/selftests/vm/on-fault-limit.c

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org

-- 
1.9.1

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From - Thu Nov 08 21:37:39 2018
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Subject: Re: [PATCH V4 2/6] mm: mlock: Add new mlock, munlock, and
 munlockall system calls
Date: Tue, 21 Jul 2015 13:44:41 -0700
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Cc: Michal Hocko <mhocko@suse.cz>, Vlastimil Babka <vbabka@suse.cz>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
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To: Eric B Munson <emunson@akamai.com>
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On Tue, 21 Jul 2015 15:59:37 -0400 Eric B Munson <emunson@akamai.com> wrote:

> With the refactored mlock code, introduce new system calls for mlock,
> munlock, and munlockall.  The new calls will allow the user to specify
> what lock states are being added or cleared.  mlock2 and munlock2 are
> trivial at the moment, but a follow on patch will add a new mlock state
> making them useful.
> 
> munlock2 addresses a limitation of the current implementation.  If a
> user calls mlockall(MCL_CURRENT | MCL_FUTURE) and then later decides
> that MCL_FUTURE should be removed, they would have to call munlockall()
> followed by mlockall(MCL_CURRENT) which could potentially be very
> expensive.  The new munlockall2 system call allows a user to simply
> clear the MCL_FUTURE flag.

This is hard.  Maybe we shouldn't have wired up anything other than
x86.  That's what we usually do with new syscalls.

You appear to have missed
mm-mlock-add-new-mlock-munlock-and-munlockall-system-calls-fix.patch:

--- a/arch/arm64/include/asm/unistd.h~mm-mlock-add-new-mlock-munlock-and-munlockall-system-calls-fix
+++ a/arch/arm64/include/asm/unistd.h
@@ -44,7 +44,7 @@
 #define __ARM_NR_compat_cacheflush	(__ARM_NR_COMPAT_BASE+2)
 #define __ARM_NR_compat_set_tls		(__ARM_NR_COMPAT_BASE+5)
 
-#define __NR_compat_syscalls		388
+#define __NR_compat_syscalls		391
 #endif
 
 #define __ARCH_WANT_SYS_CLONE


And mm-mlock-add-new-mlock-munlock-and-munlockall-system-calls-fix-2.patch:


From: Heiko Carstens <heiko.carstens@de.ibm.com>
Subject: mm-mlock-add-new-mlock-munlock-and-munlockall-system-calls-fix-2

can we just remove the s390 bits which cause the breakage?
I will wire up the syscalls as soon as the patch set gets merged.

Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Eric B Munson <emunson@akamai.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/s390/kernel/syscalls.S |    3 ---
 1 file changed, 3 deletions(-)

diff -puN arch/s390/kernel/syscalls.S~mm-mlock-add-new-mlock-munlock-and-munlockall-system-calls-fix-2 arch/s390/kernel/syscalls.S
--- a/arch/s390/kernel/syscalls.S~mm-mlock-add-new-mlock-munlock-and-munlockall-system-calls-fix-2
+++ a/arch/s390/kernel/syscalls.S
@@ -363,6 +363,3 @@ SYSCALL(sys_bpf,compat_sys_bpf)
 SYSCALL(sys_s390_pci_mmio_write,compat_sys_s390_pci_mmio_write)
 SYSCALL(sys_s390_pci_mmio_read,compat_sys_s390_pci_mmio_read)
 SYSCALL(sys_execveat,compat_sys_execveat)
-SYSCALL(sys_mlock2,compat_sys_mlock2)			/* 355 */
-SYSCALL(sys_munlock2,compat_sys_munlock2)
-SYSCALL(sys_munlockall2,compat_sys_munlockall2)


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From - Thu Nov 08 21:37:39 2018
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Subject: Re: [PATCH V4 2/6] mm: mlock: Add new mlock, munlock, and
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To: Andrew Morton <akpm@linux-foundation.org>
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On Tue, 2015-07-21 at 13:44 -0700, Andrew Morton wrote:
> On Tue, 21 Jul 2015 15:59:37 -0400 Eric B Munson <emunson@akamai.com> wrote:
> 
> > With the refactored mlock code, introduce new system calls for mlock,
> > munlock, and munlockall.  The new calls will allow the user to specify
> > what lock states are being added or cleared.  mlock2 and munlock2 are
> > trivial at the moment, but a follow on patch will add a new mlock state
> > making them useful.
> > 
> > munlock2 addresses a limitation of the current implementation.  If a
> > user calls mlockall(MCL_CURRENT | MCL_FUTURE) and then later decides
> > that MCL_FUTURE should be removed, they would have to call munlockall()
> > followed by mlockall(MCL_CURRENT) which could potentially be very
> > expensive.  The new munlockall2 system call allows a user to simply
> > clear the MCL_FUTURE flag.
> 
> This is hard.  Maybe we shouldn't have wired up anything other than
> x86.  That's what we usually do with new syscalls.

Yeah I think so.

You haven't wired it up properly on powerpc, but I haven't mentioned it because
I'd rather we did it.

cheers


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From - Thu Nov 08 21:37:40 2018
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Subject: Re: [PATCH V4 2/6] mm: mlock: Add new mlock, munlock, and munlockall
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On 07/21/2015 09:59 PM, Eric B Munson wrote:
> With the refactored mlock code, introduce new system calls for mlock,
> munlock, and munlockall.  The new calls will allow the user to specify
> what lock states are being added or cleared.  mlock2 and munlock2 are
> trivial at the moment, but a follow on patch will add a new mlock state
> making them useful.
>
> munlock2 addresses a limitation of the current implementation.  If a

   ^ munlockall2?

> user calls mlockall(MCL_CURRENT | MCL_FUTURE) and then later decides
> that MCL_FUTURE should be removed, they would have to call munlockall()
> followed by mlockall(MCL_CURRENT) which could potentially be very
> expensive.  The new munlockall2 system call allows a user to simply
> clear the MCL_FUTURE flag.
>


From - Thu Nov 08 21:37:40 2018
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Subject: Re: [PATCH V4 4/6] mm: mlock: Introduce VM_LOCKONFAULT and add mlock
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On 07/21/2015 09:59 PM, Eric B Munson wrote:
> The cost of faulting in all memory to be locked can be very high when
> working with large mappings.  If only portions of the mapping will be
> used this can incur a high penalty for locking.
>
> For the example of a large file, this is the usage pattern for a large
> statical language model (probably applies to other statical or graphical
> models as well).  For the security example, any application transacting
> in data that cannot be swapped out (credit card data, medical records,
> etc).
>
> This patch introduces the ability to request that pages are not
> pre-faulted, but are placed on the unevictable LRU when they are finally
> faulted in.  This can be done area at a time via the
> mlock2(MLOCK_ONFAULT) or the mlockall(MCL_ONFAULT) system calls.  These
> calls can be undone via munlock2(MLOCK_ONFAULT) or
> munlockall2(MCL_ONFAULT).
>
> Applying the VM_LOCKONFAULT flag to a mapping with pages that are
> already present required the addition of a function in gup.c to pin all
> pages which are present in an address range.  It borrows heavily from
> __mm_populate().
>
> To keep accounting checks out of the page fault path, users are billed
> for the entire mapping lock as if MLOCK_LOCKED was used.

Hi,

I think you should include a complete description of which transitions 
for vma states and mlock2/munlock2 flags applied on them are valid and 
what they do. It will also help with the manpages.
You explained some to Jon in the last thread, but I think there should 
be a canonical description in changelog (if not also Documentation, if 
mlock is covered there).

For example the scenario Jon asked, what happens after a 
mlock2(MLOCK_ONFAULT) followed by mlock2(MLOCK_LOCKED), and that the 
answer is "nothing". Your promised code comment for apply_vma_flags() 
doesn't suffice IMHO (and I'm not sure it's there, anyway?).

But the more I think about the scenario and your new VM_LOCKONFAULT vma 
flag, it seems awkward to me. Why should munlocking at all care if the 
vma was mlocked with MLOCK_LOCKED or MLOCK_ONFAULT? In either case the 
result is that all pages currently populated are munlocked. So the flags 
for munlock2 should be unnecessary.

I also think VM_LOCKONFAULT is unnecessary. VM_LOCKED should be enough - 
see how you had to handle the new flag in all places that had to handle 
the old flag? I think the information whether mlock was supposed to 
fault the whole vma is obsolete at the moment mlock returns. VM_LOCKED 
should be enough for both modes, and the flag to mlock2 could just 
control whether the pre-faulting is done.

So what should be IMHO enough:
- munlock can stay without flags
- mlock2 has only one new flag MLOCK_ONFAULT. If specified, pre-faulting 
is not done, just set VM_LOCKED and mlock pages already present.
- same with mmap(MAP_LOCKONFAULT) (need to define what happens when both 
MAP_LOCKED and MAP_LOCKONFAULT are specified).

Now mlockall(MCL_FUTURE) muddles the situation in that it stores the 
information for future VMA's in current->mm->def_flags, and this 
def_flags would need to distinguish VM_LOCKED with population and 
without. But that could be still solvable without introducing a new vma 
flag everywhere.

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From - Thu Nov 08 21:37:40 2018
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Subject: Re: [PATCH V4 5/6] mm: mmap: Add mmap flag to request VM_LOCKONFAULT
Date: Wed, 22 Jul 2015 14:25:58 +0300
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On Tue, Jul 21, 2015 at 03:59:40PM -0400, Eric B Munson wrote:
> The cost of faulting in all memory to be locked can be very high when
> working with large mappings.  If only portions of the mapping will be
> used this can incur a high penalty for locking.
> 
> Now that we have the new VMA flag for the locked but not present state,
> expose it as an mmap option like MAP_LOCKED -> VM_LOCKED.

What is advantage over mmap() + mlock(MLOCK_ONFAULT)?

-- 
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From - Thu Nov 08 21:37:40 2018
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Subject: Re: [PATCH V4 2/6] mm: mlock: Add new mlock, munlock, and munlockall
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On Wed, 22 Jul 2015, Vlastimil Babka wrote:

> On 07/21/2015 09:59 PM, Eric B Munson wrote:
> >With the refactored mlock code, introduce new system calls for mlock,
> >munlock, and munlockall.  The new calls will allow the user to specify
> >what lock states are being added or cleared.  mlock2 and munlock2 are
> >trivial at the moment, but a follow on patch will add a new mlock state
> >making them useful.
> >
> >munlock2 addresses a limitation of the current implementation.  If a
>=20
>   ^ munlockall2?

Fixed, thanks.


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From - Thu Nov 08 21:37:40 2018
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Newsgroups: gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.api,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH V4 2/6] mm: mlock: Add new mlock, munlock, and munlockall
 system calls
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To: Michael Ellerman <mpe@ellerman.id.au>
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On Wed, 22 Jul 2015, Michael Ellerman wrote:

> On Tue, 2015-07-21 at 13:44 -0700, Andrew Morton wrote:
> > On Tue, 21 Jul 2015 15:59:37 -0400 Eric B Munson <emunson@akamai.com> w=
rote:
> >=20
> > > With the refactored mlock code, introduce new system calls for mlock,
> > > munlock, and munlockall.  The new calls will allow the user to specify
> > > what lock states are being added or cleared.  mlock2 and munlock2 are
> > > trivial at the moment, but a follow on patch will add a new mlock sta=
te
> > > making them useful.
> > >=20
> > > munlock2 addresses a limitation of the current implementation.  If a
> > > user calls mlockall(MCL_CURRENT | MCL_FUTURE) and then later decides
> > > that MCL_FUTURE should be removed, they would have to call munlockall=
()
> > > followed by mlockall(MCL_CURRENT) which could potentially be very
> > > expensive.  The new munlockall2 system call allows a user to simply
> > > clear the MCL_FUTURE flag.
> >=20
> > This is hard.  Maybe we shouldn't have wired up anything other than
> > x86.  That's what we usually do with new syscalls.
>=20
> Yeah I think so.
>=20
> You haven't wired it up properly on powerpc, but I haven't mentioned it b=
ecause
> I'd rather we did it.
>=20
> cheers

It looks like I will be spinning a V5, so I will drop all but the x86
system calls additions in that version.

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From - Thu Nov 08 21:37:40 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: Re: [PATCH V4 5/6] mm: mmap: Add mmap flag to request VM_LOCKONFAULT
Date: Wed, 22 Jul 2015 10:32:20 -0400
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On Wed, 22 Jul 2015, Kirill A. Shutemov wrote:

> On Tue, Jul 21, 2015 at 03:59:40PM -0400, Eric B Munson wrote:
> > The cost of faulting in all memory to be locked can be very high when
> > working with large mappings.  If only portions of the mapping will be
> > used this can incur a high penalty for locking.
> >=20
> > Now that we have the new VMA flag for the locked but not present state,
> > expose it as an mmap option like MAP_LOCKED -> VM_LOCKED.
>=20
> What is advantage over mmap() + mlock(MLOCK_ONFAULT)?

There isn't one, it was added to maintain parity with the
mlock(MLOCK_LOCK) -> mmap(MAP_LOCKED) set.  I think not having will lead
to confusion because we have MAP_LOCKED so why don't we support
LOCKONFAULT from mmap as well.


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From - Thu Nov 08 21:37:40 2018
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Subject: Re: [PATCH V4 5/6] mm: mmap: Add mmap flag to request VM_LOCKONFAULT
Date: Wed, 22 Jul 2015 18:45:29 +0300
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To: Eric B Munson <emunson@akamai.com>
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On Wed, Jul 22, 2015 at 10:32:20AM -0400, Eric B Munson wrote:
> On Wed, 22 Jul 2015, Kirill A. Shutemov wrote:
> 
> > On Tue, Jul 21, 2015 at 03:59:40PM -0400, Eric B Munson wrote:
> > > The cost of faulting in all memory to be locked can be very high when
> > > working with large mappings.  If only portions of the mapping will be
> > > used this can incur a high penalty for locking.
> > > 
> > > Now that we have the new VMA flag for the locked but not present state,
> > > expose it as an mmap option like MAP_LOCKED -> VM_LOCKED.
> > 
> > What is advantage over mmap() + mlock(MLOCK_ONFAULT)?
> 
> There isn't one, it was added to maintain parity with the
> mlock(MLOCK_LOCK) -> mmap(MAP_LOCKED) set.  I think not having will lead
> to confusion because we have MAP_LOCKED so why don't we support
> LOCKONFAULT from mmap as well.

I don't think it's ia good idea to spend bits in flags unless we have a
reason for that.

BTW, you have typo on sparc: s/0x8000/0x80000/.


-- 
 Kirill A. Shutemov

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Subject: Re: [PATCH V4 4/6] mm: mlock: Introduce VM_LOCKONFAULT and add mlock
 flags to enable it
Date: Wed, 22 Jul 2015 14:43:43 -0400
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On Wed, 22 Jul 2015, Vlastimil Babka wrote:

> On 07/21/2015 09:59 PM, Eric B Munson wrote:
> >The cost of faulting in all memory to be locked can be very high when
> >working with large mappings.  If only portions of the mapping will be
> >used this can incur a high penalty for locking.
> >
> >For the example of a large file, this is the usage pattern for a large
> >statical language model (probably applies to other statical or graphical
> >models as well).  For the security example, any application transacting
> >in data that cannot be swapped out (credit card data, medical records,
> >etc).
> >
> >This patch introduces the ability to request that pages are not
> >pre-faulted, but are placed on the unevictable LRU when they are finally
> >faulted in.  This can be done area at a time via the
> >mlock2(MLOCK_ONFAULT) or the mlockall(MCL_ONFAULT) system calls.  These
> >calls can be undone via munlock2(MLOCK_ONFAULT) or
> >munlockall2(MCL_ONFAULT).
> >
> >Applying the VM_LOCKONFAULT flag to a mapping with pages that are
> >already present required the addition of a function in gup.c to pin all
> >pages which are present in an address range.  It borrows heavily from
> >__mm_populate().
> >
> >To keep accounting checks out of the page fault path, users are billed
> >for the entire mapping lock as if MLOCK_LOCKED was used.
>=20
> Hi,
>=20
> I think you should include a complete description of which
> transitions for vma states and mlock2/munlock2 flags applied on them
> are valid and what they do. It will also help with the manpages.
> You explained some to Jon in the last thread, but I think there
> should be a canonical description in changelog (if not also
> Documentation, if mlock is covered there).
>=20
> For example the scenario Jon asked, what happens after a
> mlock2(MLOCK_ONFAULT) followed by mlock2(MLOCK_LOCKED), and that the
> answer is "nothing". Your promised code comment for
> apply_vma_flags() doesn't suffice IMHO (and I'm not sure it's there,
> anyway?).

I missed adding that comment to the code, will be there in V5 along with
the description in the changelog.

>=20
> But the more I think about the scenario and your new VM_LOCKONFAULT
> vma flag, it seems awkward to me. Why should munlocking at all care
> if the vma was mlocked with MLOCK_LOCKED or MLOCK_ONFAULT? In either
> case the result is that all pages currently populated are munlocked.
> So the flags for munlock2 should be unnecessary.

Say a user has a large area of interleaved MLOCK_LOCK and MLOCK_ONFAULT
mappings and they want to unlock only the ones with MLOCK_LOCK.  With
the current implementation, this is possible in a single system call
that spans the entire region.  With your suggestion, the user would have
to know what regions where locked with MLOCK_LOCK and call munlock() on
each of them.  IMO, the way munlock2() works better mirrors the way
munlock() currently works when called on a large area of interleaved
locked and unlocked areas.

>=20
> I also think VM_LOCKONFAULT is unnecessary. VM_LOCKED should be
> enough - see how you had to handle the new flag in all places that
> had to handle the old flag? I think the information whether mlock
> was supposed to fault the whole vma is obsolete at the moment mlock
> returns. VM_LOCKED should be enough for both modes, and the flag to
> mlock2 could just control whether the pre-faulting is done.
>=20
> So what should be IMHO enough:
> - munlock can stay without flags
> - mlock2 has only one new flag MLOCK_ONFAULT. If specified,
> pre-faulting is not done, just set VM_LOCKED and mlock pages already
> present.
> - same with mmap(MAP_LOCKONFAULT) (need to define what happens when
> both MAP_LOCKED and MAP_LOCKONFAULT are specified).
>=20
> Now mlockall(MCL_FUTURE) muddles the situation in that it stores the
> information for future VMA's in current->mm->def_flags, and this
> def_flags would need to distinguish VM_LOCKED with population and
> without. But that could be still solvable without introducing a new
> vma flag everywhere.

With you right up until that last paragraph.  I have been staring at
this a while and I cannot come up a way to handle the
mlockall(MCL_ONFAULT) without introducing a new vm flag.  It doesn't
have to be VM_LOCKONFAULT, we could use the model that Michal Hocko
suggested with something like VM_FAULTPOPULATE.  However, we can't
really use this flag anywhere except the mlock code becuase we have to
be able to distinguish a caller that wants to use MLOCK_LOCK with
whatever control VM_FAULTPOPULATE might grant outside of mlock and a
caller that wants MLOCK_ONFAULT.  That was a long way of saying we need
an extra vma flag regardless.  However, if that flag only controls if
mlock pre-populates it would work and it would do away with most of the
places I had to touch to handle VM_LOCKONFAULT properly.

I picked VM_LOCKONFAULT because it is explicit about what it is for and
there is little risk of someone coming along in 5 years and saying "why
not overload this flag to do this other thing completely unrelated to
mlock?".  A flag for controling speculative population is more likely to
be overloaded outside of mlock().

If you have a sane way of handling mlockall(MCL_ONFAULT) without a new
VMA flag, I am happy to give it a try, but I haven't been able to come
up with one that doesn't have its own gremlins.


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Subject: Re: [PATCH V4 2/6] mm: mlock: Add new mlock, munlock, and munlockall
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Date: Thu, 23 Jul 2015 08:58:31 +0200
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On Wed, Jul 22, 2015 at 10:15:01AM -0400, Eric B Munson wrote:

> > 
> > You haven't wired it up properly on powerpc, but I haven't mentioned it because
> > I'd rather we did it.
> > 
> > cheers
> 
> It looks like I will be spinning a V5, so I will drop all but the x86
> system calls additions in that version.

The MIPS bits are looking good however, so

Acked-by: Ralf Baechle <ralf@linux-mips.org>

With my ack, will you keep them or maybe carry them as a separate patch?

Cheers,

  Ralf

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Subject: Re: [PATCH V4 4/6] mm: mlock: Introduce VM_LOCKONFAULT and add mlock
 flags to enable it
Date: Thu, 23 Jul 2015 12:03:37 +0200
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To: Eric B Munson <emunson@akamai.com>
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On 07/22/2015 08:43 PM, Eric B Munson wrote:
> On Wed, 22 Jul 2015, Vlastimil Babka wrote:
> 
>> 
>> Hi,
>> 
>> I think you should include a complete description of which
>> transitions for vma states and mlock2/munlock2 flags applied on them
>> are valid and what they do. It will also help with the manpages.
>> You explained some to Jon in the last thread, but I think there
>> should be a canonical description in changelog (if not also
>> Documentation, if mlock is covered there).
>> 
>> For example the scenario Jon asked, what happens after a
>> mlock2(MLOCK_ONFAULT) followed by mlock2(MLOCK_LOCKED), and that the
>> answer is "nothing". Your promised code comment for
>> apply_vma_flags() doesn't suffice IMHO (and I'm not sure it's there,
>> anyway?).
> 
> I missed adding that comment to the code, will be there in V5 along with
> the description in the changelog.

Thanks!

>> 
>> But the more I think about the scenario and your new VM_LOCKONFAULT
>> vma flag, it seems awkward to me. Why should munlocking at all care
>> if the vma was mlocked with MLOCK_LOCKED or MLOCK_ONFAULT? In either
>> case the result is that all pages currently populated are munlocked.
>> So the flags for munlock2 should be unnecessary.
> 
> Say a user has a large area of interleaved MLOCK_LOCK and MLOCK_ONFAULT
> mappings and they want to unlock only the ones with MLOCK_LOCK.  With
> the current implementation, this is possible in a single system call
> that spans the entire region.  With your suggestion, the user would have
> to know what regions where locked with MLOCK_LOCK and call munlock() on
> each of them.  IMO, the way munlock2() works better mirrors the way
> munlock() currently works when called on a large area of interleaved
> locked and unlocked areas.

Um OK, that scenario is possible in theory. But I have a hard time imagining
that somebody would really want to do that. I think much more people would
benefit from a simpler API.

> 
>> 
>> I also think VM_LOCKONFAULT is unnecessary. VM_LOCKED should be
>> enough - see how you had to handle the new flag in all places that
>> had to handle the old flag? I think the information whether mlock
>> was supposed to fault the whole vma is obsolete at the moment mlock
>> returns. VM_LOCKED should be enough for both modes, and the flag to
>> mlock2 could just control whether the pre-faulting is done.
>> 
>> So what should be IMHO enough:
>> - munlock can stay without flags
>> - mlock2 has only one new flag MLOCK_ONFAULT. If specified,
>> pre-faulting is not done, just set VM_LOCKED and mlock pages already
>> present.
>> - same with mmap(MAP_LOCKONFAULT) (need to define what happens when
>> both MAP_LOCKED and MAP_LOCKONFAULT are specified).
>> 
>> Now mlockall(MCL_FUTURE) muddles the situation in that it stores the
>> information for future VMA's in current->mm->def_flags, and this
>> def_flags would need to distinguish VM_LOCKED with population and
>> without. But that could be still solvable without introducing a new
>> vma flag everywhere.
> 
> With you right up until that last paragraph.  I have been staring at
> this a while and I cannot come up a way to handle the
> mlockall(MCL_ONFAULT) without introducing a new vm flag.  It doesn't
> have to be VM_LOCKONFAULT, we could use the model that Michal Hocko
> suggested with something like VM_FAULTPOPULATE.  However, we can't
> really use this flag anywhere except the mlock code becuase we have to
> be able to distinguish a caller that wants to use MLOCK_LOCK with
> whatever control VM_FAULTPOPULATE might grant outside of mlock and a
> caller that wants MLOCK_ONFAULT.  That was a long way of saying we need
> an extra vma flag regardless.  However, if that flag only controls if
> mlock pre-populates it would work and it would do away with most of the
> places I had to touch to handle VM_LOCKONFAULT properly.

Yes, it would be a good way. Adding a new vma flag is probably cleanest after
all, but the flag would be set *in addition* to VM_LOCKED, *just* to prevent
pre-faulting. The places that check VM_LOCKED for the actual page mlocking (i.e.
try_to_unmap_one) would just keep checking VM_LOCKED. The places where VM_LOCKED
is checked to trigger prepopulation, would skip that if VM_LOCKONFAULT is also
set. Having VM_LOCKONFAULT set without also VM_LOCKED itself would be invalid state.

This should work fine with the simplified API as I proposed so let me reiterate
and try fill in the blanks:

- mlock2 has only one new flag MLOCK_ONFAULT. If specified, VM_LOCKONFAULT is
set in addition to VM_LOCKED and no prefaulting is done
  - old mlock syscall naturally behaves as mlock2 without MLOCK_ONFAULT
  - calling mlock/mlock2 on an already-mlocked area (if that's permitted
already?) will add/remove VM_LOCKONFAULT as needed. If it's removing,
prepopulate whole range. Of course adding VM_LOCKONFAULT to a vma that was
already prefaulted doesn't make any difference, but it's consistent with the rest.
- munlock removes both VM_LOCKED and VM_LOCKONFAULT
- mmap could treat MAP_LOCKONFAULT as a modifier to MAP_LOCKED to be consistent?
or not? I'm not sure here, either way subtly differs from mlock API anyway, I
just wish MAP_LOCKED never existed...
- mlockall(MCL_CURRENT) sets or clears VM_LOCKONFAULT depending on
MCL_LOCKONFAULT, mlockall(MCL_FUTURE) does the same on mm->def_flags
- munlockall2 removes both, like munlock. munlockall2(MCL_FUTURE) does that to
def_flags

> I picked VM_LOCKONFAULT because it is explicit about what it is for and
> there is little risk of someone coming along in 5 years and saying "why
> not overload this flag to do this other thing completely unrelated to
> mlock?".  A flag for controling speculative population is more likely to
> be overloaded outside of mlock().

Sure, let's make clear the name is related to mlock, but the behavior could
still be additive to MAP_LOCKED.

> If you have a sane way of handling mlockall(MCL_ONFAULT) without a new
> VMA flag, I am happy to give it a try, but I haven't been able to come
> up with one that doesn't have its own gremlins.

Well we could store the MCL_FUTURE | MCL_ONFAULT bit elsewhere in mm_struct than
the def_flags field. The VM_LOCKED field is already evaluated specially from all
the other def_flags. We are nearing the full 32bit space for vma flags. I think
all I've proposed above wouldn't change much if we removed per-vma
VM_LOCKONFAULT flag from the equation. Just that re-mlocking area already
mlocked *withouth* MLOCK_ONFAULT wouldn't know that it was alread prepopulated,
and would have to re-populate in either case (I'm not sure, maybe it's already
done by current implementation anyway so it's not a potential performance
regression).
Only mlockall(MCL_FUTURE | MCL_ONFAULT) should really need the ONFAULT info to
"stick" somewhere in mm_struct, but it doesn't have to be def_flags?
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Subject: Re: [PATCH V4 4/6] mm: mlock: Introduce VM_LOCKONFAULT and add mlock
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On Thu, 23 Jul 2015, Vlastimil Babka wrote:

> On 07/22/2015 08:43 PM, Eric B Munson wrote:
> > On Wed, 22 Jul 2015, Vlastimil Babka wrote:
> >=20
> >>=20
> >> Hi,
> >>=20
> >> I think you should include a complete description of which
> >> transitions for vma states and mlock2/munlock2 flags applied on them
> >> are valid and what they do. It will also help with the manpages.
> >> You explained some to Jon in the last thread, but I think there
> >> should be a canonical description in changelog (if not also
> >> Documentation, if mlock is covered there).
> >>=20
> >> For example the scenario Jon asked, what happens after a
> >> mlock2(MLOCK_ONFAULT) followed by mlock2(MLOCK_LOCKED), and that the
> >> answer is "nothing". Your promised code comment for
> >> apply_vma_flags() doesn't suffice IMHO (and I'm not sure it's there,
> >> anyway?).
> >=20
> > I missed adding that comment to the code, will be there in V5 along with
> > the description in the changelog.
>=20
> Thanks!
>=20
> >>=20
> >> But the more I think about the scenario and your new VM_LOCKONFAULT
> >> vma flag, it seems awkward to me. Why should munlocking at all care
> >> if the vma was mlocked with MLOCK_LOCKED or MLOCK_ONFAULT? In either
> >> case the result is that all pages currently populated are munlocked.
> >> So the flags for munlock2 should be unnecessary.
> >=20
> > Say a user has a large area of interleaved MLOCK_LOCK and MLOCK_ONFAULT
> > mappings and they want to unlock only the ones with MLOCK_LOCK.  With
> > the current implementation, this is possible in a single system call
> > that spans the entire region.  With your suggestion, the user would have
> > to know what regions where locked with MLOCK_LOCK and call munlock() on
> > each of them.  IMO, the way munlock2() works better mirrors the way
> > munlock() currently works when called on a large area of interleaved
> > locked and unlocked areas.
>=20
> Um OK, that scenario is possible in theory. But I have a hard time imagin=
ing
> that somebody would really want to do that. I think much more people would
> benefit from a simpler API.

It wasn't about imagining a scenario, more about keeping parity with
something that currently works (unlocking a large area of interleaved
locked and unlocked regions).  However, there is no reason we can't add
the new munlock2 later if it is desired.

>=20
> >=20
> >>=20
> >> I also think VM_LOCKONFAULT is unnecessary. VM_LOCKED should be
> >> enough - see how you had to handle the new flag in all places that
> >> had to handle the old flag? I think the information whether mlock
> >> was supposed to fault the whole vma is obsolete at the moment mlock
> >> returns. VM_LOCKED should be enough for both modes, and the flag to
> >> mlock2 could just control whether the pre-faulting is done.
> >>=20
> >> So what should be IMHO enough:
> >> - munlock can stay without flags
> >> - mlock2 has only one new flag MLOCK_ONFAULT. If specified,
> >> pre-faulting is not done, just set VM_LOCKED and mlock pages already
> >> present.
> >> - same with mmap(MAP_LOCKONFAULT) (need to define what happens when
> >> both MAP_LOCKED and MAP_LOCKONFAULT are specified).
> >>=20
> >> Now mlockall(MCL_FUTURE) muddles the situation in that it stores the
> >> information for future VMA's in current->mm->def_flags, and this
> >> def_flags would need to distinguish VM_LOCKED with population and
> >> without. But that could be still solvable without introducing a new
> >> vma flag everywhere.
> >=20
> > With you right up until that last paragraph.  I have been staring at
> > this a while and I cannot come up a way to handle the
> > mlockall(MCL_ONFAULT) without introducing a new vm flag.  It doesn't
> > have to be VM_LOCKONFAULT, we could use the model that Michal Hocko
> > suggested with something like VM_FAULTPOPULATE.  However, we can't
> > really use this flag anywhere except the mlock code becuase we have to
> > be able to distinguish a caller that wants to use MLOCK_LOCK with
> > whatever control VM_FAULTPOPULATE might grant outside of mlock and a
> > caller that wants MLOCK_ONFAULT.  That was a long way of saying we need
> > an extra vma flag regardless.  However, if that flag only controls if
> > mlock pre-populates it would work and it would do away with most of the
> > places I had to touch to handle VM_LOCKONFAULT properly.
>=20
> Yes, it would be a good way. Adding a new vma flag is probably cleanest a=
fter
> all, but the flag would be set *in addition* to VM_LOCKED, *just* to prev=
ent
> pre-faulting. The places that check VM_LOCKED for the actual page mlockin=
g (i.e.
> try_to_unmap_one) would just keep checking VM_LOCKED. The places where VM=
_LOCKED
> is checked to trigger prepopulation, would skip that if VM_LOCKONFAULT is=
 also
> set. Having VM_LOCKONFAULT set without also VM_LOCKED itself would be inv=
alid state.
>=20
> This should work fine with the simplified API as I proposed so let me rei=
terate
> and try fill in the blanks:
>=20
> - mlock2 has only one new flag MLOCK_ONFAULT. If specified, VM_LOCKONFAUL=
T is
> set in addition to VM_LOCKED and no prefaulting is done
>   - old mlock syscall naturally behaves as mlock2 without MLOCK_ONFAULT
>   - calling mlock/mlock2 on an already-mlocked area (if that's permitted
> already?) will add/remove VM_LOCKONFAULT as needed. If it's removing,
> prepopulate whole range. Of course adding VM_LOCKONFAULT to a vma that was
> already prefaulted doesn't make any difference, but it's consistent with =
the rest.
> - munlock removes both VM_LOCKED and VM_LOCKONFAULT
> - mmap could treat MAP_LOCKONFAULT as a modifier to MAP_LOCKED to be cons=
istent?
> or not? I'm not sure here, either way subtly differs from mlock API anywa=
y, I
> just wish MAP_LOCKED never existed...
> - mlockall(MCL_CURRENT) sets or clears VM_LOCKONFAULT depending on
> MCL_LOCKONFAULT, mlockall(MCL_FUTURE) does the same on mm->def_flags
> - munlockall2 removes both, like munlock. munlockall2(MCL_FUTURE) does th=
at to
> def_flags
>=20
> > I picked VM_LOCKONFAULT because it is explicit about what it is for and
> > there is little risk of someone coming along in 5 years and saying "why
> > not overload this flag to do this other thing completely unrelated to
> > mlock?".  A flag for controling speculative population is more likely to
> > be overloaded outside of mlock().
>=20
> Sure, let's make clear the name is related to mlock, but the behavior cou=
ld
> still be additive to MAP_LOCKED.
>=20
> > If you have a sane way of handling mlockall(MCL_ONFAULT) without a new
> > VMA flag, I am happy to give it a try, but I haven't been able to come
> > up with one that doesn't have its own gremlins.
>=20
> Well we could store the MCL_FUTURE | MCL_ONFAULT bit elsewhere in mm_stru=
ct than
> the def_flags field. The VM_LOCKED field is already evaluated specially f=
rom all
> the other def_flags. We are nearing the full 32bit space for vma flags. I=
 think
> all I've proposed above wouldn't change much if we removed per-vma
> VM_LOCKONFAULT flag from the equation. Just that re-mlocking area already
> mlocked *withouth* MLOCK_ONFAULT wouldn't know that it was alread prepopu=
lated,
> and would have to re-populate in either case (I'm not sure, maybe it's al=
ready
> done by current implementation anyway so it's not a potential performance
> regression).
> Only mlockall(MCL_FUTURE | MCL_ONFAULT) should really need the ONFAULT in=
fo to
> "stick" somewhere in mm_struct, but it doesn't have to be def_flags?

This all sounds fine and should still cover the usecase that started
this adventure.  I will include this change in the V5 spin.


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From - Thu Nov 08 21:37:40 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.api,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH V4 2/6] mm: mlock: Add new mlock, munlock, and munlockall
 system calls
Date: Fri, 24 Jul 2015 10:39:36 -0400
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Cc: Michael Ellerman <mpe@ellerman.id.au>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-mips@linux-mips.org, linux-m68k@vger.kernel.org,
	linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
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To: Ralf Baechle <ralf@linux-mips.org>
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On Thu, 23 Jul 2015, Ralf Baechle wrote:

> On Wed, Jul 22, 2015 at 10:15:01AM -0400, Eric B Munson wrote:
>=20
> > >=20
> > > You haven't wired it up properly on powerpc, but I haven't mentioned =
it because
> > > I'd rather we did it.
> > >=20
> > > cheers
> >=20
> > It looks like I will be spinning a V5, so I will drop all but the x86
> > system calls additions in that version.
>=20
> The MIPS bits are looking good however, so
>=20
> Acked-by: Ralf Baechle <ralf@linux-mips.org>
>=20
> With my ack, will you keep them or maybe carry them as a separate patch?

I will keep the MIPS additions as a separate patch in the series, though
I have dropped two of the new syscalls after some discussion.  So I will
not include your ack on the new patch.

Eric

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From - Thu Nov 08 21:37:40 2018
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From: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
Newsgroups: gmane.linux.kernel.api,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH V4 2/6] mm: mlock: Add new mlock, munlock, and munlockall
 system calls
Date: Fri, 24 Jul 2015 08:46:38 -0700
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References: <1437508781-28655-1-git-send-email-emunson@akamai.com> <1437508781-28655-3-git-send-email-emunson@akamai.com> <20150721134441.d69e4e1099bd43e56835b3c5@linux-foundation.org> <1437528316.16792.7.camel@ellerman.id.au> <20150722141501.GA3203@akamai.com> <20150723065830.GA5919@linux-mips.org> <20150724143936.GE9203@akamai.com>
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Cc: Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>,
	Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
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	Heiko Carstens <heiko.carstens-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>,
	Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
	sparclinux-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Stephen Rothwell <sfr-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org>,
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On 07/24/2015 07:39 AM, Eric B Munson wrote:
> On Thu, 23 Jul 2015, Ralf Baechle wrote:
>
>> On Wed, Jul 22, 2015 at 10:15:01AM -0400, Eric B Munson wrote:
>>
>>>>
>>>> You haven't wired it up properly on powerpc, but I haven't mentioned it because
>>>> I'd rather we did it.
>>>>
>>>> cheers
>>>
>>> It looks like I will be spinning a V5, so I will drop all but the x86
>>> system calls additions in that version.
>>
>> The MIPS bits are looking good however, so
>>
>> Acked-by: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
>>
>> With my ack, will you keep them or maybe carry them as a separate patch?
>
> I will keep the MIPS additions as a separate patch in the series, though
> I have dropped two of the new syscalls after some discussion.  So I will
> not include your ack on the new patch.
>
> Eric
>

Hi Eric,

next-20150724 still has some failures due to this patch set. Are those
being looked at (I know parisc builds fail, but there may be others) ?

Thanks,
Guenter


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Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.api,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH V4 2/6] mm: mlock: Add new mlock, munlock, and munlockall
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To: Guenter Roeck <linux@roeck-us.net>
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On Fri, 24 Jul 2015, Guenter Roeck wrote:

> On 07/24/2015 07:39 AM, Eric B Munson wrote:
> >On Thu, 23 Jul 2015, Ralf Baechle wrote:
> >
> >>On Wed, Jul 22, 2015 at 10:15:01AM -0400, Eric B Munson wrote:
> >>
> >>>>
> >>>>You haven't wired it up properly on powerpc, but I haven't mentioned =
it because
> >>>>I'd rather we did it.
> >>>>
> >>>>cheers
> >>>
> >>>It looks like I will be spinning a V5, so I will drop all but the x86
> >>>system calls additions in that version.
> >>
> >>The MIPS bits are looking good however, so
> >>
> >>Acked-by: Ralf Baechle <ralf@linux-mips.org>
> >>
> >>With my ack, will you keep them or maybe carry them as a separate patch?
> >
> >I will keep the MIPS additions as a separate patch in the series, though
> >I have dropped two of the new syscalls after some discussion.  So I will
> >not include your ack on the new patch.
> >
> >Eric
> >
>=20
> Hi Eric,
>=20
> next-20150724 still has some failures due to this patch set. Are those
> being looked at (I know parisc builds fail, but there may be others) ?
>=20
> Thanks,
> Guenter

Guenter,

Yes, the next respin will drop all new arch syscall entries except
x86[_64] and MIPS.  I will leave it up to arch maintainers to add the
entries.

Eric

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From - Thu Nov 08 21:37:40 2018
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Subject: [PATCH V5 4/7] mm: mlock: Add mlock flags to enable VM_LOCKONFAULT usage
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Cc: Eric B Munson <emunson@akamai.com>,
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Xref: news.gmane.org gmane.linux.kernel.mm:136311 gmane.linux.ports.alpha:3232 gmane.linux.kernel:2004449 gmane.linux.ports.mips.general:49571 gmane.linux.ports.parisc:25868 gmane.linux.ports.ppc64.devel:115806 gmane.linux.ports.sparc:21286 gmane.linux.kernel.cross-arch:28592 gmane.linux.kernel.api:13147
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/136311>

The previous patch introduced a flag that specified pages in a VMA
should be placed on the unevictable LRU, but they should not be made
present when the area is created.  This patch adds the ability to set
this state via the new mlock system calls.

We add MLOCK_ONFAULT for mlock2 and MCL_ONFAULT for mlockall.
MLOCK_ONFAULT will set the VM_LOCKONFAULT flag as well as the VM_LOCKED
flag for the target region.  MCL_CURRENT and MCL_ONFAULT are used to
lock current mappings.  With MCL_CURRENT all pages are made present and
with MCL_ONFAULT they are locked when faulted in.  When specified with
MCL_FUTURE all new mappings will be marked with VM_LOCKONFAULT.

Currently, mlockall() clears all VMA lock flags and then sets the
requested flags.  For instance, if a process has MCL_FUTURE and
MCL_CURRENT set, but they want to clear MCL_FUTURE this would be
accomplished by calling mlockall(MCL_CURRENT).  This still holds with
the introduction of MCL_ONFAULT.  Each call to mlockall() resets all
VMA flags to the values specified in the current call.  The new mlock2
system call behaves in the same way.  If a region is locked with
MLOCK_ONFAULT and a user wants to force it to be populated now, a second
call to mlock2(MLOCK_LOCKED) will accomplish this.

munlock() will unconditionally clear both vma flags.  munlockall()
unconditionally clears for VMA flags on all VMAs and in the
mm->def_flags field.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
Cc: linux-mm@kvack.org
---
Changes from V4:
* Split addition of VMA flag

Changes from V3:
* Do extensive search for VM_LOCKED and ensure that VM_LOCKONFAULT is also handled
 where appropriate
 arch/alpha/include/uapi/asm/mman.h   |  2 ++
 arch/mips/include/uapi/asm/mman.h    |  2 ++
 arch/parisc/include/uapi/asm/mman.h  |  2 ++
 arch/powerpc/include/uapi/asm/mman.h |  2 ++
 arch/sparc/include/uapi/asm/mman.h   |  2 ++
 arch/tile/include/uapi/asm/mman.h    |  3 +++
 arch/xtensa/include/uapi/asm/mman.h  |  2 ++
 include/uapi/asm-generic/mman.h      |  2 ++
 mm/mlock.c                           | 41 ++++++++++++++++++++++++------------
 9 files changed, 45 insertions(+), 13 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index ec72436..77ae8db 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -37,8 +37,10 @@
 
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
+#define MCL_ONFAULT	32768		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 67c1cdf..71ed81d 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -61,11 +61,13 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 /*
  * Flags for mlock
  */
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index daab994..c0871ce 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -31,8 +31,10 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 189e85f..f93f7eb 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -22,8 +22,10 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 13d51be..8cd2ebc 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -17,8 +17,10 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index f69ce48..acdd013 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -36,11 +36,14 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
 
 /*
  * Flags for mlock
  */
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 11f354f..5725a15 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -74,11 +74,13 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 /*
  * Flags for mlock
  */
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index 242436b..555aab0 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -17,7 +17,9 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+#define MLOCK_ONFAULT	0x02		/* Lock pages in range after they are faulted in, do not prefault */
 
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/mm/mlock.c b/mm/mlock.c
index e98bdd4..3a99c80 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -506,7 +506,8 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
 
 	if (newflags == vma->vm_flags || (vma->vm_flags & VM_SPECIAL) ||
 	    is_vm_hugetlb_page(vma) || vma == get_gate_vma(current->mm))
-		goto out;	/* don't set VM_LOCKED,  don't count */
+		/* don't set VM_LOCKED or VM_LOCKONFAULT and don't count */
+		goto out;
 
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,
@@ -576,7 +577,7 @@ static int apply_vma_lock_flags(unsigned long start, size_t len,
 		prev = vma;
 
 	for (nstart = start ; ; ) {
-		vm_flags_t newflags = vma->vm_flags & ~VM_LOCKED;
+		vm_flags_t newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
 		newflags |= flags;
 
 		/* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
@@ -645,9 +646,13 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
 {
 	vm_flags_t vm_flags = VM_LOCKED;
-	if (!flags || (flags & ~(MLOCK_LOCKED)))
+	if (!flags || (flags & ~(MLOCK_LOCKED | MLOCK_ONFAULT)) ||
+	    flags == (MLOCK_LOCKED | MLOCK_ONFAULT))
 		return -EINVAL;
 
+	if (flags & MLOCK_ONFAULT)
+		vm_flags |= VM_LOCKONFAULT;
+
 	return do_mlock(start, len, vm_flags);
 }
 
@@ -668,21 +673,30 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 static int apply_mlockall_flags(int flags)
 {
 	struct vm_area_struct * vma, * prev = NULL;
+	vm_flags_t to_add = 0;
 
-	if (flags & MCL_FUTURE)
+	current->mm->def_flags &= ~(VM_LOCKED | VM_LOCKONFAULT);
+	if (flags & MCL_FUTURE) {
 		current->mm->def_flags |= VM_LOCKED;
-	else
-		current->mm->def_flags &= ~VM_LOCKED;
 
-	if (flags == MCL_FUTURE)
-		goto out;
+		if (flags == MCL_FUTURE)
+			goto out;
+
+		if (flags & MCL_ONFAULT)
+			current->mm->def_flags |= VM_LOCKONFAULT;
+	}
+
+	if (flags & (MCL_ONFAULT | MCL_CURRENT)) {
+		to_add |= VM_LOCKED;
+		if (flags & MCL_ONFAULT)
+			to_add |= VM_LOCKONFAULT;
+	}
 
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
-		if (flags & MCL_CURRENT)
-			newflags |= VM_LOCKED;
+		newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
+		newflags |= to_add;
 
 		/* Ignore errors */
 		mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);
@@ -697,7 +711,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	unsigned long lock_limit;
 	int ret = -EINVAL;
 
-	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
+	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT)) ||
+	    (flags & (MCL_CURRENT | MCL_ONFAULT)) == (MCL_CURRENT | MCL_ONFAULT))
 		goto out;
 
 	ret = -EPERM;
@@ -717,7 +732,7 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	    capable(CAP_IPC_LOCK))
 		ret = apply_mlockall_flags(flags);
 	up_write(&current->mm->mmap_sem);
-	if (!ret && (flags & MCL_CURRENT))
+	if (!ret && (flags & (MCL_CURRENT | MCL_ONFAULT)))
 		mm_populate(0, TASK_SIZE);
 out:
 	return ret;
-- 
1.9.1

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From - Thu Nov 08 21:37:41 2018
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Path: news.gmane.org!not-for-mail
From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH V5 0/7] Allow user to request memory to be locked on page fault
Date: Fri, 24 Jul 2015 17:28:38 -0400
Lines: 216
Approved: news@gmane.org
Message-ID: <1437773325-8623-1-git-send-email-emunson@akamai.com>
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Cc: Eric B Munson <emunson@akamai.com>,
	Shuah Khan <shuahkh@osg.samsung.com>,
	Michal Hocko <mhocko@suse.cz>,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	Vlastimil Babka <vbabka@suse.cz>,
	Jonathan Corbet <corbet@lwn.net>,
	Ralf Baechle <ralf@linux-mips.org>,
	linux-alpha@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-mips@linux-mips.org,
	linux-parisc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org,
	sparclinux@vger.kernel.org,
	linux-xtensa@linux-xtensa.org,
	linux-mm@kvack.org,
	linux-arch@vger.kernel.org,
	linux-api@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/136313>

mlock() allows a user to control page out of program memory, but this
comes at the cost of faulting in the entire mapping when it is
allocated.  For large mappings where the entire area is not necessary
this is not ideal.  Instead of forcing all locked pages to be present
when they are allocated, this set creates a middle ground.  Pages are
marked to be placed on the unevictable LRU (locked) when they are first
used, but they are not faulted in by the mlock call.

This series introduces a new mlock() system call that takes a flags
argument along with the start address and size.  This flags argument
gives the caller the ability to request memory be locked in the
traditional way, or to be locked after the page is faulted in.  A new
MCL flag is added to mirror the lock on fault behavior from mlock() in
mlockall().  Finally, a flag for mmap() is added that allows a user to
specify that the covered are should not be paged out, but only after the
memory has been used the first time.

There are two main use cases that this set covers.  The first is the
security focussed mlock case.  A buffer is needed that cannot be written
to swap.  The maximum size is known, but on average the memory used is
significantly less than this maximum.  With lock on fault, the buffer
is guaranteed to never be paged out without consuming the maximum size
every time such a buffer is created.

The second use case is focussed on performance.  Portions of a large
file are needed and we want to keep the used portions in memory once
accessed.  This is the case for large graphical models where the path
through the graph is not known until run time.  The entire graph is
unlikely to be used in a given invocation, but once a node has been
used it needs to stay resident for further processing.  Given these
constraints we have a number of options.  We can potentially waste a
large amount of memory by mlocking the entire region (this can also
cause a significant stall at startup as the entire file is read in).
We can mlock every page as we access them without tracking if the page
is already resident but this introduces large overhead for each access.
The third option is mapping the entire region with PROT_NONE and using
a signal handler for SIGSEGV to mprotect(PROT_READ) and mlock() the
needed page.  Doing this page at a time adds a significant performance
penalty.  Batching can be used to mitigate this overhead, but in order
to safely avoid trying to mprotect pages outside of the mapping, the
boundaries of each mapping to be used in this way must be tracked and
available to the signal handler.  This is precisely what the mm system
in the kernel should already be doing.

For mlock(MLOCK_ONFAULT) and mmap(MAP_LOCKONFAULT) the user is charged
against RLIMIT_MEMLOCK as if mlock(MLOCK_LOCKED) or mmap(MAP_LOCKED) was
used, so when the VMA is created not when the pages are faulted in.  For
mlockall(MCL_ONFAULT) the user is charged as if MCL_FUTURE was used.
This decision was made to keep the accounting checks out of the page
fault path.

To illustrate the benefit of this set I wrote a test program that mmaps
a 5 GB file filled with random data and then makes 15,000,000 accesses
to random addresses in that mapping.  The test program was run 20 times
for each setup.  Results are reported for two program portions, setup
and execution.  The setup phase is calling mmap and optionally mlock on
the entire region.  For most experiments this is trivial, but it
highlights the cost of faulting in the entire region.  Results are
averages across the 20 runs in milliseconds.

mmap with mlock(MLOCK_LOCKED) on entire range:
Setup avg:      8228.666
Processing avg: 8274.257

mmap with mlock(MLOCK_LOCKED) before each access:
Setup avg:      0.113
Processing avg: 90993.552

mmap with PROT_NONE and signal handler and batch size of 1 page:
With the default value in max_map_count, this gets ENOMEM as I attempt
to change the permissions, after upping the sysctl significantly I get:
Setup avg:      0.058
Processing avg: 69488.073
mmap with PROT_NONE and signal handler and batch size of 8 pages:
Setup avg:      0.068
Processing avg: 38204.116

mmap with PROT_NONE and signal handler and batch size of 16 pages:
Setup avg:      0.044
Processing avg: 29671.180

mmap with mlock(MLOCK_ONFAULT) on entire range:
Setup avg:      0.189
Processing avg: 17904.899

The signal handler in the batch cases faulted in memory in two steps to
avoid having to know the start and end of the faulting mapping.  The
first step covers the page that caused the fault as we know that it will
be possible to lock.  The second step speculatively tries to mlock and
mprotect the batch size - 1 pages that follow.  There may be a clever
way to avoid this without having the program track each mapping to be
covered by this handeler in a globally accessible structure, but I could
not find it.  It should be noted that with a large enough batch size
this two step fault handler can still cause the program to crash if it
reaches far beyond the end of the mapping.

These results show that if the developer knows that a majority of the
mapping will be used, it is better to try and fault it in at once,
otherwise MAP_LOCKONFAULT is significantly faster.

The performance cost of these patches are minimal on the two benchmarks
I have tested (stream and kernbench).  The following are the average
values across 20 runs of stream and 10 runs of kernbench after a warmup
run whose results were discarded.

Avg throughput in MB/s from stream using 1000000 element arrays
Test     4.2-rc1      4.2-rc1+lock-on-fault
Copy:    10,566.5     10,421
Scale:   10,685       10,503.5
Add:     12,044.1     11,814.2
Triad:   12,064.8     11,846.3

Kernbench optimal load
                 4.2-rc1  4.2-rc1+lock-on-fault
Elapsed Time     78.453   78.991
User Time        64.2395  65.2355
System Time      9.7335   9.7085
Context Switches 22211.5  22412.1
Sleeps           14965.3  14956.1

---
Changes from V4:
Drop all architectures for new sys call entries except x86[_64] and MIPS
Drop munlock2 and munlockall2
Make VM_LOCKONFAULT a modifier to VM_LOCKED only to simplify book keeping
Adjust tests to match

Changes from V3:
Ensure that pages present when mlock2(MLOCK_ONFAULT) is called are locked
Ensure that VM_LOCKONFAULT is handled in cases that used to only check VM_LOCKED
Add tests for new system calls
Add missing syscall entries, fix NR_syscalls on multiple arch's
Add missing MAP_LOCKONFAULT for tile

Changes from V2:
Added new system calls for mlock, munlock, and munlockall with added
flags arguments for controlling how memory is locked or unlocked.


Eric B Munson (7):
  mm: mlock: Refactor mlock, munlock, and munlockall code
  mm: mlock: Add new mlock system call
  mm: Introduce VM_LOCKONFAULT
  mm: mlock: Add mlock flags to enable VM_LOCKONFAULT usage
  mm: mmap: Add mmap flag to request VM_LOCKONFAULT
  selftests: vm: Add tests for lock on fault
  mips: Add entry for new mlock2 syscall

 arch/alpha/include/uapi/asm/mman.h          |   5 +
 arch/mips/include/uapi/asm/mman.h           |   8 +
 arch/mips/include/uapi/asm/unistd.h         |  15 +-
 arch/mips/kernel/scall32-o32.S              |   1 +
 arch/mips/kernel/scall64-64.S               |   1 +
 arch/mips/kernel/scall64-n32.S              |   1 +
 arch/mips/kernel/scall64-o32.S              |   1 +
 arch/parisc/include/uapi/asm/mman.h         |   5 +
 arch/powerpc/include/uapi/asm/mman.h        |   5 +
 arch/sparc/include/uapi/asm/mman.h          |   5 +
 arch/tile/include/uapi/asm/mman.h           |   9 +
 arch/x86/entry/syscalls/syscall_32.tbl      |   1 +
 arch/x86/entry/syscalls/syscall_64.tbl      |   1 +
 arch/xtensa/include/uapi/asm/mman.h         |   8 +
 drivers/gpu/drm/drm_vm.c                    |   8 +-
 fs/proc/task_mmu.c                          |   1 +
 include/linux/mm.h                          |   2 +
 include/linux/mman.h                        |   3 +-
 include/linux/syscalls.h                    |   2 +
 include/uapi/asm-generic/mman.h             |   5 +
 include/uapi/asm-generic/unistd.h           |   4 +-
 kernel/events/core.c                        |   3 +-
 kernel/fork.c                               |   2 +-
 kernel/sys_ni.c                             |   1 +
 mm/debug.c                                  |   1 +
 mm/gup.c                                    |  10 +-
 mm/huge_memory.c                            |   2 +-
 mm/hugetlb.c                                |   4 +-
 mm/mlock.c                                  |  77 +++--
 mm/mmap.c                                   |  10 +-
 mm/rmap.c                                   |   4 +-
 tools/testing/selftests/vm/Makefile         |   3 +
 tools/testing/selftests/vm/lock-on-fault.c  | 344 +++++++++++++++++++
 tools/testing/selftests/vm/mlock2-tests.c   | 507 ++++++++++++++++++++++++++++
 tools/testing/selftests/vm/on-fault-limit.c |  47 +++
 tools/testing/selftests/vm/run_vmtests      |  33 ++
 36 files changed, 1093 insertions(+), 46 deletions(-)
 create mode 100644 tools/testing/selftests/vm/lock-on-fault.c
 create mode 100644 tools/testing/selftests/vm/mlock2-tests.c
 create mode 100644 tools/testing/selftests/vm/on-fault-limit.c

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org


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From - Thu Nov 08 21:37:41 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.kernel.mm
Subject: [PATCH V5 2/7] mm: mlock: Add new mlock system call
Date: Fri, 24 Jul 2015 17:28:40 -0400
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Approved: news@gmane.org
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Cc: Eric B Munson <emunson@akamai.com>, Michal Hocko <mhocko@suse.cz>,
	Vlastimil Babka <vbabka@suse.cz>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
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	Catalin Marinas <catalin.marinas@arm.com>,
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	Guenter Roeck <linux@roeck-us.net>,
	linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
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	linux-api@vger.kernel.org, linux-arch@vger.kernel.org,
	linux-mm@kvack.org
To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/3234>

With the refactored mlock code, introduce a new system call for mlock.
The new call will allow the user to specify what lock states are being
added.  mlock2 is trivial at the moment, but a follow on patch will add
a new mlock state making it useful.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
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Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mm@kvack.org
---
Changes from V4:
* Drop all architectures except x86[_64] from this patch, MIPS is added
  later in the series.  All others will be left to their maintainers.

Changes from V3:
* Do a (hopefully) complete job of adding the new system calls
 arch/alpha/include/uapi/asm/mman.h     | 2 ++
 arch/mips/include/uapi/asm/mman.h      | 5 +++++
 arch/parisc/include/uapi/asm/mman.h    | 2 ++
 arch/powerpc/include/uapi/asm/mman.h   | 2 ++
 arch/sparc/include/uapi/asm/mman.h     | 2 ++
 arch/tile/include/uapi/asm/mman.h      | 5 +++++
 arch/x86/entry/syscalls/syscall_32.tbl | 1 +
 arch/x86/entry/syscalls/syscall_64.tbl | 1 +
 arch/xtensa/include/uapi/asm/mman.h    | 5 +++++
 include/linux/syscalls.h               | 2 ++
 include/uapi/asm-generic/mman.h        | 2 ++
 include/uapi/asm-generic/unistd.h      | 4 +++-
 kernel/sys_ni.c                        | 1 +
 mm/mlock.c                             | 9 +++++++++
 14 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..ec72436 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -38,6 +38,8 @@
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
 #define MADV_SEQUENTIAL	2		/* expect sequential page references */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..67c1cdf 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -62,6 +62,11 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
 #define MADV_SEQUENTIAL 2		/* expect sequential page references */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..daab994 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -32,6 +32,8 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
 #define MADV_SEQUENTIAL 2               /* expect sequential page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 6ea26df..189e85f 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -23,6 +23,8 @@
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 0b14df3..13d51be 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -18,6 +18,8 @@
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index 81b8fc3..f69ce48 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -37,5 +37,10 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index ef8187f..839d5df 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -365,3 +365,4 @@
 356	i386	memfd_create		sys_memfd_create
 357	i386	bpf			sys_bpf
 358	i386	execveat		sys_execveat			stub32_execveat
+359	i386	mlock2			sys_mlock2
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 9ef32d5..ad36769 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -329,6 +329,7 @@
 320	common	kexec_file_load		sys_kexec_file_load
 321	common	bpf			sys_bpf
 322	64	execveat		stub_execveat
+323	common	mlock2			sys_mlock2
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..11f354f 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -75,6 +75,11 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
 #define MADV_SEQUENTIAL	2		/* expect sequential page references */
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index b45c45b..56a3d59 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -884,4 +884,6 @@ asmlinkage long sys_execveat(int dfd, const char __user *filename,
 			const char __user *const __user *argv,
 			const char __user *const __user *envp, int flags);
 
+asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
+
 #endif
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index e9fe6fd..242436b 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -18,4 +18,6 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index e016bd9..14a6013 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -709,9 +709,11 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
 __SYSCALL(__NR_bpf, sys_bpf)
 #define __NR_execveat 281
 __SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
+#define __NR_mlock2 282
+__SYSCALL(__NR_mlock2, sys_mlock2)
 
 #undef __NR_syscalls
-#define __NR_syscalls 282
+#define __NR_syscalls 283
 
 /*
  * All syscalls below here should go away really,
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 7995ef5..4818b71 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -193,6 +193,7 @@ cond_syscall(sys_mlock);
 cond_syscall(sys_munlock);
 cond_syscall(sys_mlockall);
 cond_syscall(sys_munlockall);
+cond_syscall(sys_mlock2);
 cond_syscall(sys_mincore);
 cond_syscall(sys_madvise);
 cond_syscall(sys_mremap);
diff --git a/mm/mlock.c b/mm/mlock.c
index 1585cca..c9c6a0f 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -642,6 +642,15 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 	return do_mlock(start, len, VM_LOCKED);
 }
 
+SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
+{
+	vm_flags_t vm_flags = VM_LOCKED;
+	if (!flags || (flags & ~(MLOCK_LOCKED)))
+		return -EINVAL;
+
+	return do_mlock(start, len, vm_flags);
+}
+
 SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 {
 	int ret;
-- 
1.9.1

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From - Thu Nov 08 21:37:41 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH V5 5/7] mm: mmap: Add mmap flag to request VM_LOCKONFAULT
Date: Fri, 24 Jul 2015 17:28:43 -0400
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Approved: news@gmane.org
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Cc: Eric B Munson <emunson@akamai.com>,
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Xref: news.gmane.org gmane.linux.kernel.mm:136316 gmane.linux.ports.alpha:3235 gmane.linux.kernel:2004454 gmane.linux.ports.mips.general:49573 gmane.linux.ports.parisc:25871 gmane.linux.ports.ppc64.devel:115809 gmane.linux.ports.sparc:21289 gmane.linux.kernel.cross-arch:28595 gmane.linux.kernel.api:13151
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/136316>

The cost of faulting in all memory to be locked can be very high when
working with large mappings.  If only portions of the mapping will be
used this can incur a high penalty for locking.

Now that we have the new VMA flag for the locked but not present state,
expose it as an mmap option like MAP_LOCKED -> VM_LOCKED.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
---
 arch/alpha/include/uapi/asm/mman.h   | 1 +
 arch/mips/include/uapi/asm/mman.h    | 1 +
 arch/parisc/include/uapi/asm/mman.h  | 1 +
 arch/powerpc/include/uapi/asm/mman.h | 1 +
 arch/sparc/include/uapi/asm/mman.h   | 1 +
 arch/tile/include/uapi/asm/mman.h    | 1 +
 arch/xtensa/include/uapi/asm/mman.h  | 1 +
 include/linux/mman.h                 | 3 ++-
 include/uapi/asm-generic/mman.h      | 1 +
 kernel/events/core.c                 | 3 ++-
 mm/mmap.c                            | 8 ++++++--
 11 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 77ae8db..3f80ca4 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -30,6 +30,7 @@
 #define MAP_NONBLOCK	0x40000		/* do not block on IO */
 #define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x200000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_SYNC		2		/* synchronous memory sync */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 71ed81d..905c1ea 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -48,6 +48,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 /*
  * Flags for msync
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index c0871ce..c4695f6 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -24,6 +24,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 #define MS_SYNC		1		/* synchronous memory sync */
 #define MS_ASYNC	2		/* sync memory asynchronously */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index f93f7eb..40a3fda 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -31,5 +31,6 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 #endif /* _UAPI_ASM_POWERPC_MMAN_H */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 8cd2ebc..f66efa6 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -26,6 +26,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 
 #endif /* _UAPI__SPARC_MMAN_H__ */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index acdd013..800e5c3 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -29,6 +29,7 @@
 #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
 #define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
 #define MAP_HUGETLB	0x4000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 
 
 /*
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 5725a15..689e1f2 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -55,6 +55,7 @@
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x100000	/* Lock pages after they are faulted in, do not prefault */
 #ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
 # define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be
 					 * uninitialized */
diff --git a/include/linux/mman.h b/include/linux/mman.h
index 16373c8..8243268 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -86,7 +86,8 @@ calc_vm_flag_bits(unsigned long flags)
 {
 	return _calc_vm_trans(flags, MAP_GROWSDOWN,  VM_GROWSDOWN ) |
 	       _calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
-	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    );
+	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    ) |
+	       _calc_vm_trans(flags, MAP_LOCKONFAULT,VM_LOCKONFAULT | VM_LOCKED);
 }
 
 unsigned long vm_commit_limit(void);
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index 555aab0..007b784 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -12,6 +12,7 @@
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_LOCKONFAULT	0x80000		/* Lock pages after they are faulted in, do not prefault */
 
 /* Bits [26:31] are reserved, see mman-common.h for MAP_HUGETLB usage */
 
diff --git a/kernel/events/core.c b/kernel/events/core.c
index d3dae34..ec039f7 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5815,7 +5815,8 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 		if (vma->vm_flags & VM_MAYEXEC)
 			flags |= MAP_EXECUTABLE;
 		if (vma->vm_flags & VM_LOCKED)
-			flags |= MAP_LOCKED;
+			flags |= (vma->vm_flags & VM_LOCKONFAULT ?
+					MAP_LOCKONFAULT : MAP_LOCKED);
 		if (vma->vm_flags & VM_HUGETLB)
 			flags |= MAP_HUGETLB;
 
diff --git a/mm/mmap.c b/mm/mmap.c
index bdbefc3..56a842d 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1261,6 +1261,10 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 	if (!len)
 		return -EINVAL;
 
+	if ((flags & (MAP_LOCKED | MAP_LOCKONFAULT)) ==
+		(MAP_LOCKED | MAP_LOCKONFAULT))
+		return -EINVAL;
+
 	/*
 	 * Does the application expect PROT_READ to imply PROT_EXEC?
 	 *
@@ -1301,7 +1305,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 	vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
 			mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
 
-	if (flags & MAP_LOCKED)
+	if (flags & (MAP_LOCKED | MAP_LOCKONFAULT))
 		if (!can_do_mlock())
 			return -EPERM;
 
@@ -2674,7 +2678,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
 	flags &= MAP_NONBLOCK;
 	flags |= MAP_SHARED | MAP_FIXED | MAP_POPULATE;
 	if (vma->vm_flags & VM_LOCKED) {
-		flags |= MAP_LOCKED;
+		flags |= (vma->vm_flags & VM_LOCKONFAULT ? MAP_LOCKONFAULT : MAP_LOCKED);
 		/* drop PG_Mlocked flag for over-mapped range */
 		munlock_vma_pages_range(vma, start, start + size);
 	}
-- 
1.9.1

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From - Thu Nov 08 21:37:41 2018
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From: "Kirill A. Shutemov" <kirill@shutemov.name>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.kernel.mm
Subject: Re: [PATCH V5 2/7] mm: mlock: Add new mlock system call
Date: Mon, 27 Jul 2015 09:43:00 +0300
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	Vlastimil Babka <vbabka@suse.cz>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
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	linux-mm@kvack.org
To: Eric B Munson <emunson@akamai.com>
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On Fri, Jul 24, 2015 at 05:28:40PM -0400, Eric B Munson wrote:
> With the refactored mlock code, introduce a new system call for mlock.
> The new call will allow the user to specify what lock states are being
> added.  mlock2 is trivial at the moment, but a follow on patch will add
> a new mlock state making it useful.
> 
> Signed-off-by: Eric B Munson <emunson@akamai.com>
> Cc: Michal Hocko <mhocko@suse.cz>
> Cc: Vlastimil Babka <vbabka@suse.cz>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: Geert Uytterhoeven <geert@linux-m68k.org>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
> Cc: Guenter Roeck <linux@roeck-us.net>
> Cc: linux-alpha@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: adi-buildroot-devel@lists.sourceforge.net
> Cc: linux-cris-kernel@axis.com
> Cc: linux-ia64@vger.kernel.org
> Cc: linux-m68k@lists.linux-m68k.org
> Cc: linux-am33-list@redhat.com
> Cc: linux-parisc@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: linux-s390@vger.kernel.org
> Cc: linux-sh@vger.kernel.org
> Cc: sparclinux@vger.kernel.org
> Cc: linux-xtensa@linux-xtensa.org
> Cc: linux-api@vger.kernel.org
> Cc: linux-arch@vger.kernel.org
> Cc: linux-mm@kvack.org
> ---
> Changes from V4:
> * Drop all architectures except x86[_64] from this patch, MIPS is added
>   later in the series.  All others will be left to their maintainers.
> 
> Changes from V3:
> * Do a (hopefully) complete job of adding the new system calls
>  arch/alpha/include/uapi/asm/mman.h     | 2 ++
>  arch/mips/include/uapi/asm/mman.h      | 5 +++++
>  arch/parisc/include/uapi/asm/mman.h    | 2 ++
>  arch/powerpc/include/uapi/asm/mman.h   | 2 ++
>  arch/sparc/include/uapi/asm/mman.h     | 2 ++
>  arch/tile/include/uapi/asm/mman.h      | 5 +++++
>  arch/x86/entry/syscalls/syscall_32.tbl | 1 +
>  arch/x86/entry/syscalls/syscall_64.tbl | 1 +
>  arch/xtensa/include/uapi/asm/mman.h    | 5 +++++

Define MLOCK_LOCKED in include/uapi/asm-generic/mman-common.h.
This way you can drop changes in powerpc, sparc and tile.

Otherwise looks good.

-- 
 Kirill A. Shutemov
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From - Thu Nov 08 21:37:41 2018
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From: "Kirill A. Shutemov" <kirill@shutemov.name>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: Re: [PATCH V5 4/7] mm: mlock: Add mlock flags to enable
 VM_LOCKONFAULT usage
Date: Mon, 27 Jul 2015 10:15:18 +0300
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Cc: Andrew Morton <akpm@linux-foundation.org>,
	Michal Hocko <mhocko@suse.cz>, Vlastimil Babka <vbabka@suse.cz>,
	Jonathan Corbet <corbet@lwn.net>, linux-alpha@vger.kernel.org,
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To: Eric B Munson <emunson@akamai.com>
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On Fri, Jul 24, 2015 at 05:28:42PM -0400, Eric B Munson wrote:
> The previous patch introduced a flag that specified pages in a VMA
> should be placed on the unevictable LRU, but they should not be made
> present when the area is created.  This patch adds the ability to set
> this state via the new mlock system calls.
> 
> We add MLOCK_ONFAULT for mlock2 and MCL_ONFAULT for mlockall.
> MLOCK_ONFAULT will set the VM_LOCKONFAULT flag as well as the VM_LOCKED
> flag for the target region.  MCL_CURRENT and MCL_ONFAULT are used to
> lock current mappings.  With MCL_CURRENT all pages are made present and
> with MCL_ONFAULT they are locked when faulted in.  When specified with
> MCL_FUTURE all new mappings will be marked with VM_LOCKONFAULT.
> 
> Currently, mlockall() clears all VMA lock flags and then sets the
> requested flags.  For instance, if a process has MCL_FUTURE and
> MCL_CURRENT set, but they want to clear MCL_FUTURE this would be
> accomplished by calling mlockall(MCL_CURRENT).  This still holds with
> the introduction of MCL_ONFAULT.  Each call to mlockall() resets all
> VMA flags to the values specified in the current call.  The new mlock2
> system call behaves in the same way.  If a region is locked with
> MLOCK_ONFAULT and a user wants to force it to be populated now, a second
> call to mlock2(MLOCK_LOCKED) will accomplish this.
> 
> munlock() will unconditionally clear both vma flags.  munlockall()
> unconditionally clears for VMA flags on all VMAs and in the
> mm->def_flags field.
> 
> Signed-off-by: Eric B Munson <emunson@akamai.com>
> Cc: Michal Hocko <mhocko@suse.cz>
> Cc: Vlastimil Babka <vbabka@suse.cz>
> Cc: Jonathan Corbet <corbet@lwn.net>
> Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
> Cc: linux-alpha@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-mips@linux-mips.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: sparclinux@vger.kernel.org
> Cc: linux-xtensa@linux-xtensa.org
> Cc: linux-arch@vger.kernel.org
> Cc: linux-api@vger.kernel.org
> Cc: linux-mm@kvack.org
> ---
> Changes from V4:
> * Split addition of VMA flag
> 
> Changes from V3:
> * Do extensive search for VM_LOCKED and ensure that VM_LOCKONFAULT is also handled
>  where appropriate
>  arch/alpha/include/uapi/asm/mman.h   |  2 ++
>  arch/mips/include/uapi/asm/mman.h    |  2 ++
>  arch/parisc/include/uapi/asm/mman.h  |  2 ++
>  arch/powerpc/include/uapi/asm/mman.h |  2 ++
>  arch/sparc/include/uapi/asm/mman.h   |  2 ++
>  arch/tile/include/uapi/asm/mman.h    |  3 +++
>  arch/xtensa/include/uapi/asm/mman.h  |  2 ++

Again, you can save few lines by moving some code into mman-common.h.

Otherwise looks good.

-- 
 Kirill A. Shutemov

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Subject: Re: [PATCH V5 5/7] mm: mmap: Add mmap flag to request VM_LOCKONFAULT
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On Fri, Jul 24, 2015 at 05:28:43PM -0400, Eric B Munson wrote:
> The cost of faulting in all memory to be locked can be very high when
> working with large mappings.  If only portions of the mapping will be
> used this can incur a high penalty for locking.
> 
> Now that we have the new VMA flag for the locked but not present state,
> expose it as an mmap option like MAP_LOCKED -> VM_LOCKED.

As I mentioned before, I don't think this interface is justified.

MAP_LOCKED has known issues[1]. The MAP_LOCKED problem is not necessary
affects MAP_LOCKONFAULT, but still.

Let's not add new interface unless it's demonstrably useful.

[1] http://lkml.kernel.org/g/20150114095019.GC4706@dhcp22.suse.cz

-- 
 Kirill A. Shutemov

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Subject: Re: [PATCH V5 0/7] Allow user to request memory to be locked on page
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On 07/24/2015 11:28 PM, Eric B Munson wrote:

...

> Changes from V4:
> Drop all architectures for new sys call entries except x86[_64] and MIPS
> Drop munlock2 and munlockall2
> Make VM_LOCKONFAULT a modifier to VM_LOCKED only to simplify book keeping
> Adjust tests to match

Hi, thanks for considering my suggestions. Well, I do hope there were 
correct as API's are hard and I'm no API expert. But since API's are 
also impossible to change after merging, I'm sorry but I'll keep 
pestering for one last thing. Thanks again for persisting, I do believe 
it's for the good thing!

The thing is that I still don't like that one has to call 
mlock2(MLOCK_LOCKED) to get the equivalent of the old mlock(). Why is 
that flag needed? We have two modes of locking now, and v5 no longer 
treats them separately in vma flags. But having two flags gives us four 
possible combinations, so two of them would serve nothing but to confuse 
the programmer IMHO. What will mlock2() without flags do? What will 
mlock2(MLOCK_LOCKED | MLOCK_ONFAULT) do? (Note I haven't studied the 
code yet, as having agreed on the API should come first. But I did 
suggest documenting these things more thoroughly too...)
OK I checked now and both cases above seem to return EINVAL.

So about the only point I see in MLOCK_LOCKED flag is parity with 
MAP_LOCKED for mmap(). But as Kirill said (and me before as well) 
MAP_LOCKED is broken anyway so we shouldn't twist the rest just of the 
API to keep the poor thing happier in its misery.

Also note that AFAICS you don't have MCL_LOCKED for mlockall() so 
there's no full parity anyway. But please don't fix that by adding 
MCL_LOCKED :)

Thanks!

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On Mon, 27 Jul 2015, Vlastimil Babka wrote:

> On 07/24/2015 11:28 PM, Eric B Munson wrote:
>=20
> ...
>=20
> >Changes from V4:
> >Drop all architectures for new sys call entries except x86[_64] and MIPS
> >Drop munlock2 and munlockall2
> >Make VM_LOCKONFAULT a modifier to VM_LOCKED only to simplify book keeping
> >Adjust tests to match
>=20
> Hi, thanks for considering my suggestions. Well, I do hope there
> were correct as API's are hard and I'm no API expert. But since
> API's are also impossible to change after merging, I'm sorry but
> I'll keep pestering for one last thing. Thanks again for persisting,
> I do believe it's for the good thing!
>=20
> The thing is that I still don't like that one has to call
> mlock2(MLOCK_LOCKED) to get the equivalent of the old mlock(). Why
> is that flag needed? We have two modes of locking now, and v5 no
> longer treats them separately in vma flags. But having two flags
> gives us four possible combinations, so two of them would serve
> nothing but to confuse the programmer IMHO. What will mlock2()
> without flags do? What will mlock2(MLOCK_LOCKED | MLOCK_ONFAULT) do?
> (Note I haven't studied the code yet, as having agreed on the API
> should come first. But I did suggest documenting these things more
> thoroughly too...)
> OK I checked now and both cases above seem to return EINVAL.
>=20
> So about the only point I see in MLOCK_LOCKED flag is parity with
> MAP_LOCKED for mmap(). But as Kirill said (and me before as well)
> MAP_LOCKED is broken anyway so we shouldn't twist the rest just of
> the API to keep the poor thing happier in its misery.
>=20
> Also note that AFAICS you don't have MCL_LOCKED for mlockall() so
> there's no full parity anyway. But please don't fix that by adding
> MCL_LOCKED :)
>=20
> Thanks!


I have an MLOCK_LOCKED flag because I prefer an interface to be
explicit.  The caller of mlock2() will be required to fill in the flags
argument regardless.  I can drop the MLOCK_LOCKED flag with 0 being the
value for LOCKED, but I thought it easier to make clear what was going
on at any call to mlock2().  If user space defines a MLOCK_LOCKED that
happens to be 0, I suppose that would be okay.

We do actually have an MCL_LOCKED, we just call it MCL_CURRENT.  Would
you prefer that I match the name in mlock2() (add MLOCK_CURRENT
instead)?

Finally, on the question of MAP_LOCKONFAULT, do you just dislike
MAP_LOCKED and do not want to see it extended, or is this a NAK on the
set if that patch is included.  I ask because I have to spin a V6 to get
the MLOCK flag declarations right, but I would prefer not to do a V7+.
If this is a NAK with, I can drop that patch and rework the tests to
cover without the mmap flag.  Otherwise I want to keep it, I have an
internal user that would like to see it added.


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From - Thu Nov 08 21:37:41 2018
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Subject: Re: [PATCH V5 5/7] mm: mmap: Add mmap flag to request VM_LOCKONFAULT
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On Mon, 27 Jul 2015, Kirill A. Shutemov wrote:

> On Fri, Jul 24, 2015 at 05:28:43PM -0400, Eric B Munson wrote:
> > The cost of faulting in all memory to be locked can be very high when
> > working with large mappings.  If only portions of the mapping will be
> > used this can incur a high penalty for locking.
> >=20
> > Now that we have the new VMA flag for the locked but not present state,
> > expose it as an mmap option like MAP_LOCKED -> VM_LOCKED.
>=20
> As I mentioned before, I don't think this interface is justified.
>=20
> MAP_LOCKED has known issues[1]. The MAP_LOCKED problem is not necessary
> affects MAP_LOCKONFAULT, but still.
>=20
> Let's not add new interface unless it's demonstrably useful.
>=20
> [1] http://lkml.kernel.org/g/20150114095019.GC4706@dhcp22.suse.cz

I understand and should have been more explicit.  This patch is still
included becuase I have an internal user that wants to see it added.
The problem discussed in the thread you point out does not affect
MAP_LOCKONFAULT because we do not attempt to populate the region with
MAP_LOCKONFAULT.

As I told Vlastimil, if this is a hard NAK with the patch I can work
with that.  Otherwise I prefer it stays.


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From - Thu Nov 08 21:37:41 2018
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Subject: Re: [PATCH V5 5/7] mm: mmap: Add mmap flag to request VM_LOCKONFAULT
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On Mon, Jul 27, 2015 at 09:41:26AM -0400, Eric B Munson wrote:
> On Mon, 27 Jul 2015, Kirill A. Shutemov wrote:
> 
> > On Fri, Jul 24, 2015 at 05:28:43PM -0400, Eric B Munson wrote:
> > > The cost of faulting in all memory to be locked can be very high when
> > > working with large mappings.  If only portions of the mapping will be
> > > used this can incur a high penalty for locking.
> > > 
> > > Now that we have the new VMA flag for the locked but not present state,
> > > expose it as an mmap option like MAP_LOCKED -> VM_LOCKED.
> > 
> > As I mentioned before, I don't think this interface is justified.
> > 
> > MAP_LOCKED has known issues[1]. The MAP_LOCKED problem is not necessary
> > affects MAP_LOCKONFAULT, but still.
> > 
> > Let's not add new interface unless it's demonstrably useful.
> > 
> > [1] http://lkml.kernel.org/g/20150114095019.GC4706@dhcp22.suse.cz
> 
> I understand and should have been more explicit.  This patch is still
> included becuase I have an internal user that wants to see it added.
> The problem discussed in the thread you point out does not affect
> MAP_LOCKONFAULT because we do not attempt to populate the region with
> MAP_LOCKONFAULT.
> 
> As I told Vlastimil, if this is a hard NAK with the patch I can work
> with that.  Otherwise I prefer it stays.

That's not how it works.

Once an ABI added to the kernel it stays there practically forever.
Therefore it must be useful to justify maintenance cost. I don't see it
demonstrated.

So, NAK.

-- 
 Kirill A. Shutemov



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Subject: Re: [PATCH V5 5/7] mm: mmap: Add mmap flag to request VM_LOCKONFAULT
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On Mon, 27 Jul 2015, Kirill A. Shutemov wrote:

> On Mon, Jul 27, 2015 at 09:41:26AM -0400, Eric B Munson wrote:
> > On Mon, 27 Jul 2015, Kirill A. Shutemov wrote:
> >=20
> > > On Fri, Jul 24, 2015 at 05:28:43PM -0400, Eric B Munson wrote:
> > > > The cost of faulting in all memory to be locked can be very high wh=
en
> > > > working with large mappings.  If only portions of the mapping will =
be
> > > > used this can incur a high penalty for locking.
> > > >=20
> > > > Now that we have the new VMA flag for the locked but not present st=
ate,
> > > > expose it as an mmap option like MAP_LOCKED -> VM_LOCKED.
> > >=20
> > > As I mentioned before, I don't think this interface is justified.
> > >=20
> > > MAP_LOCKED has known issues[1]. The MAP_LOCKED problem is not necessa=
ry
> > > affects MAP_LOCKONFAULT, but still.
> > >=20
> > > Let's not add new interface unless it's demonstrably useful.
> > >=20
> > > [1] http://lkml.kernel.org/g/20150114095019.GC4706@dhcp22.suse.cz
> >=20
> > I understand and should have been more explicit.  This patch is still
> > included becuase I have an internal user that wants to see it added.
> > The problem discussed in the thread you point out does not affect
> > MAP_LOCKONFAULT because we do not attempt to populate the region with
> > MAP_LOCKONFAULT.
> >=20
> > As I told Vlastimil, if this is a hard NAK with the patch I can work
> > with that.  Otherwise I prefer it stays.
>=20
> That's not how it works.

I am not sure what you mean here.  I have a user that will find this
useful and MAP_LOCKONFAULT does not suffer from the problem you point
out.  I do not understand your NAK but thank you for explicit about it.

>=20
> Once an ABI added to the kernel it stays there practically forever.
> Therefore it must be useful to justify maintenance cost. I don't see it
> demonstrated.

I understand this, and I get that you do not like MAP_LOCKED, but I do
not see how your dislike for MAP_LOCKED means that this would not be
useful.

>=20
> So, NAK.
>=20

V6 will not have the new mmap flag unless there is someone else that
speaks up in favor of keeping it.


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From - Thu Nov 08 21:37:41 2018
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Subject: Re: [PATCH V5 0/7] Allow user to request memory to be locked on page
 fault
Date: Mon, 27 Jul 2015 16:16:23 +0200
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To: Eric B Munson <emunson@akamai.com>
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On 07/27/2015 03:35 PM, Eric B Munson wrote:
> On Mon, 27 Jul 2015, Vlastimil Babka wrote:
>
>> On 07/24/2015 11:28 PM, Eric B Munson wrote:
>>
>> ...
>>
>>> Changes from V4:
>>> Drop all architectures for new sys call entries except x86[_64] and MIPS
>>> Drop munlock2 and munlockall2
>>> Make VM_LOCKONFAULT a modifier to VM_LOCKED only to simplify book keeping
>>> Adjust tests to match
>>
>> Hi, thanks for considering my suggestions. Well, I do hope there
>> were correct as API's are hard and I'm no API expert. But since
>> API's are also impossible to change after merging, I'm sorry but
>> I'll keep pestering for one last thing. Thanks again for persisting,
>> I do believe it's for the good thing!
>>
>> The thing is that I still don't like that one has to call
>> mlock2(MLOCK_LOCKED) to get the equivalent of the old mlock(). Why
>> is that flag needed? We have two modes of locking now, and v5 no
>> longer treats them separately in vma flags. But having two flags
>> gives us four possible combinations, so two of them would serve
>> nothing but to confuse the programmer IMHO. What will mlock2()
>> without flags do? What will mlock2(MLOCK_LOCKED | MLOCK_ONFAULT) do?
>> (Note I haven't studied the code yet, as having agreed on the API
>> should come first. But I did suggest documenting these things more
>> thoroughly too...)
>> OK I checked now and both cases above seem to return EINVAL.
>>
>> So about the only point I see in MLOCK_LOCKED flag is parity with
>> MAP_LOCKED for mmap(). But as Kirill said (and me before as well)
>> MAP_LOCKED is broken anyway so we shouldn't twist the rest just of
>> the API to keep the poor thing happier in its misery.
>>
>> Also note that AFAICS you don't have MCL_LOCKED for mlockall() so
>> there's no full parity anyway. But please don't fix that by adding
>> MCL_LOCKED :)
>>
>> Thanks!
>
>
> I have an MLOCK_LOCKED flag because I prefer an interface to be
> explicit.

I think it's already explicit enough that the user calls mlock2(), no? 
He obviously wants the range mlocked. An optional flag says that there 
should be no pre-fault.

> The caller of mlock2() will be required to fill in the flags
> argument regardless.

I guess users not caring about MLOCK_ONFAULT will continue using plain 
mlock() without flags anyway.

I can drop the MLOCK_LOCKED flag with 0 being the
> value for LOCKED, but I thought it easier to make clear what was going
> on at any call to mlock2().  If user space defines a MLOCK_LOCKED that
> happens to be 0, I suppose that would be okay.

Yeah that would remove the weird 4-states-of-which-2-are-invalid problem 
I mentioned, but at the cost of glibc wrapper behaving differently than 
the kernel syscall itself. For little gain.

> We do actually have an MCL_LOCKED, we just call it MCL_CURRENT.  Would
> you prefer that I match the name in mlock2() (add MLOCK_CURRENT
> instead)?

Hm it's similar but not exactly the same, because MCL_FUTURE is not the 
same as MLOCK_ONFAULT :) So MLOCK_CURRENT would be even more confusing. 
Especially if mlockall(MCL_CURRENT | MCL_FUTURE) is OK, but 
mlock2(MLOCK_LOCKED | MLOCK_ONFAULT) is invalid.

> Finally, on the question of MAP_LOCKONFAULT, do you just dislike
> MAP_LOCKED and do not want to see it extended, or is this a NAK on the
> set if that patch is included.  I ask because I have to spin a V6 to get
> the MLOCK flag declarations right, but I would prefer not to do a V7+.
> If this is a NAK with, I can drop that patch and rework the tests to
> cover without the mmap flag.  Otherwise I want to keep it, I have an
> internal user that would like to see it added.

I don't want to NAK that patch if you think it's useful.


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From - Thu Nov 08 21:37:41 2018
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Subject: Re: [PATCH V5 0/7] Allow user to request memory to be locked on page
 fault
Date: Mon, 27 Jul 2015 10:54:09 -0400
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Cc: Andrew Morton <akpm@linux-foundation.org>,
	Shuah Khan <shuahkh@osg.samsung.com>,
	Michal Hocko <mhocko@suse.cz>,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Ralf Baechle <ralf@linux-mips.org>,
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To: Vlastimil Babka <vbabka@suse.cz>
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On Mon, 27 Jul 2015, Vlastimil Babka wrote:

> On 07/27/2015 03:35 PM, Eric B Munson wrote:
> >On Mon, 27 Jul 2015, Vlastimil Babka wrote:
> >
> >>On 07/24/2015 11:28 PM, Eric B Munson wrote:
> >>
> >>...
> >>
> >>>Changes from V4:
> >>>Drop all architectures for new sys call entries except x86[_64] and MI=
PS
> >>>Drop munlock2 and munlockall2
> >>>Make VM_LOCKONFAULT a modifier to VM_LOCKED only to simplify book keep=
ing
> >>>Adjust tests to match
> >>
> >>Hi, thanks for considering my suggestions. Well, I do hope there
> >>were correct as API's are hard and I'm no API expert. But since
> >>API's are also impossible to change after merging, I'm sorry but
> >>I'll keep pestering for one last thing. Thanks again for persisting,
> >>I do believe it's for the good thing!
> >>
> >>The thing is that I still don't like that one has to call
> >>mlock2(MLOCK_LOCKED) to get the equivalent of the old mlock(). Why
> >>is that flag needed? We have two modes of locking now, and v5 no
> >>longer treats them separately in vma flags. But having two flags
> >>gives us four possible combinations, so two of them would serve
> >>nothing but to confuse the programmer IMHO. What will mlock2()
> >>without flags do? What will mlock2(MLOCK_LOCKED | MLOCK_ONFAULT) do?
> >>(Note I haven't studied the code yet, as having agreed on the API
> >>should come first. But I did suggest documenting these things more
> >>thoroughly too...)
> >>OK I checked now and both cases above seem to return EINVAL.
> >>
> >>So about the only point I see in MLOCK_LOCKED flag is parity with
> >>MAP_LOCKED for mmap(). But as Kirill said (and me before as well)
> >>MAP_LOCKED is broken anyway so we shouldn't twist the rest just of
> >>the API to keep the poor thing happier in its misery.
> >>
> >>Also note that AFAICS you don't have MCL_LOCKED for mlockall() so
> >>there's no full parity anyway. But please don't fix that by adding
> >>MCL_LOCKED :)
> >>
> >>Thanks!
> >
> >
> >I have an MLOCK_LOCKED flag because I prefer an interface to be
> >explicit.
>=20
> I think it's already explicit enough that the user calls mlock2(),
> no? He obviously wants the range mlocked. An optional flag says that
> there should be no pre-fault.
>=20
> >The caller of mlock2() will be required to fill in the flags
> >argument regardless.
>=20
> I guess users not caring about MLOCK_ONFAULT will continue using
> plain mlock() without flags anyway.
>=20
> I can drop the MLOCK_LOCKED flag with 0 being the
> >value for LOCKED, but I thought it easier to make clear what was going
> >on at any call to mlock2().  If user space defines a MLOCK_LOCKED that
> >happens to be 0, I suppose that would be okay.
>=20
> Yeah that would remove the weird 4-states-of-which-2-are-invalid
> problem I mentioned, but at the cost of glibc wrapper behaving
> differently than the kernel syscall itself. For little gain.
>=20
> >We do actually have an MCL_LOCKED, we just call it MCL_CURRENT.  Would
> >you prefer that I match the name in mlock2() (add MLOCK_CURRENT
> >instead)?
>=20
> Hm it's similar but not exactly the same, because MCL_FUTURE is not
> the same as MLOCK_ONFAULT :) So MLOCK_CURRENT would be even more
> confusing. Especially if mlockall(MCL_CURRENT | MCL_FUTURE) is OK,
> but mlock2(MLOCK_LOCKED | MLOCK_ONFAULT) is invalid.

MLOCK_ONFAULT isn't meant to be the same as MCL_FUTURE, rather it is
meant to be the same as MCL_ONFAULT.  MCL_FUTURE only controls if the
locking policy will be applied to any new mappings made by this process,
not the locking policy itself.  The better comparison is MCL_CURRENT to
MLOCK_LOCK and MCL_ONFAULT to MLOCK_ONFAULT.  MCL_CURRENT and
MLOCK_LOCK do the same thing, only one requires a specific range of
addresses while the other works process wide.  This is why I suggested
changing MLOCK_LOCK to MLOCK_CURRENT.  It is an error to call
mlock2(MLOCK_LOCK | MLOCK_ONFAULT) just like it is an error to call
mlockall(MCL_CURRENT | MCL_ONFAULT).  The combinations do no make sense.

This was all decided when VM_LOCKONFAULT was a separate state from
VM_LOCKED.  Now that VM_LOCKONFAULT is a modifier to VM_LOCKED and
cannot be specified independentally, it might make more sense to mirror
that relationship to userspace.  Which would lead to soemthing like the
following:

To lock and populate a region:
mlock2(start, len, 0);

To lock on fault a region:
mlock2(start, len, MLOCK_ONFAULT);

If LOCKONFAULT is seen as a modifier to mlock, then having the flags
argument as 0 mean do mlock classic makes more sense to me.

To mlock current on fault only:
mlockall(MCL_CURRENT | MCL_ONFAULT);

To mlock future on fault only:
mlockall(MCL_FUTURE | MCL_ONFAULT);

To lock everything on fault:
mlockall(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT);

I think I have talked myself into rewriting the set again :/

>=20
> >Finally, on the question of MAP_LOCKONFAULT, do you just dislike
> >MAP_LOCKED and do not want to see it extended, or is this a NAK on the
> >set if that patch is included.  I ask because I have to spin a V6 to get
> >the MLOCK flag declarations right, but I would prefer not to do a V7+.
> >If this is a NAK with, I can drop that patch and rework the tests to
> >cover without the mmap flag.  Otherwise I want to keep it, I have an
> >internal user that would like to see it added.
>=20
> I don't want to NAK that patch if you think it's useful.
>=20
>=20

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From - Thu Nov 08 21:37:42 2018
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From: Vlastimil Babka <vbabka@suse.cz>
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Subject: Re: [PATCH V5 0/7] Allow user to request memory to be locked on page
 fault
Date: Mon, 27 Jul 2015 17:40:24 +0200
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To: Eric B Munson <emunson@akamai.com>
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On 07/27/2015 04:54 PM, Eric B Munson wrote:
> On Mon, 27 Jul 2015, Vlastimil Babka wrote:
>>
>>> We do actually have an MCL_LOCKED, we just call it MCL_CURRENT.  Would
>>> you prefer that I match the name in mlock2() (add MLOCK_CURRENT
>>> instead)?
>>
>> Hm it's similar but not exactly the same, because MCL_FUTURE is not
>> the same as MLOCK_ONFAULT :) So MLOCK_CURRENT would be even more
>> confusing. Especially if mlockall(MCL_CURRENT | MCL_FUTURE) is OK,
>> but mlock2(MLOCK_LOCKED | MLOCK_ONFAULT) is invalid.
>
> MLOCK_ONFAULT isn't meant to be the same as MCL_FUTURE, rather it is
> meant to be the same as MCL_ONFAULT.  MCL_FUTURE only controls if the
> locking policy will be applied to any new mappings made by this process,
> not the locking policy itself.  The better comparison is MCL_CURRENT to
> MLOCK_LOCK and MCL_ONFAULT to MLOCK_ONFAULT.  MCL_CURRENT and
> MLOCK_LOCK do the same thing, only one requires a specific range of
> addresses while the other works process wide.  This is why I suggested
> changing MLOCK_LOCK to MLOCK_CURRENT.  It is an error to call
> mlock2(MLOCK_LOCK | MLOCK_ONFAULT) just like it is an error to call
> mlockall(MCL_CURRENT | MCL_ONFAULT).  The combinations do no make sense.

How is it an error to call mlockall(MCL_CURRENT | MCL_ONFAULT)? How else 
would you apply mlock2(MCL_ONFAULT) to all current mappings? Later below 
you use the same example and I don't think it's different by removing 
MLOCK_LOCKED flag.

> This was all decided when VM_LOCKONFAULT was a separate state from
> VM_LOCKED.  Now that VM_LOCKONFAULT is a modifier to VM_LOCKED and
> cannot be specified independentally, it might make more sense to mirror
> that relationship to userspace.  Which would lead to soemthing like the
> following:
>
> To lock and populate a region:
> mlock2(start, len, 0);
>
> To lock on fault a region:
> mlock2(start, len, MLOCK_ONFAULT);
>
> If LOCKONFAULT is seen as a modifier to mlock, then having the flags
> argument as 0 mean do mlock classic makes more sense to me.

Yup that's what I was trying to suggest.

> To mlock current on fault only:
> mlockall(MCL_CURRENT | MCL_ONFAULT);
>
> To mlock future on fault only:
> mlockall(MCL_FUTURE | MCL_ONFAULT);
>
> To lock everything on fault:
> mlockall(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT);
>
> I think I have talked myself into rewriting the set again :/

Sorry :) You could also wait a bit for more input than just from me...

>>
>>> Finally, on the question of MAP_LOCKONFAULT, do you just dislike
>>> MAP_LOCKED and do not want to see it extended, or is this a NAK on the
>>> set if that patch is included.  I ask because I have to spin a V6 to get
>>> the MLOCK flag declarations right, but I would prefer not to do a V7+.
>>> If this is a NAK with, I can drop that patch and rework the tests to
>>> cover without the mmap flag.  Otherwise I want to keep it, I have an
>>> internal user that would like to see it added.
>>
>> I don't want to NAK that patch if you think it's useful.
>>
>>

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From - Thu Nov 08 21:37:42 2018
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Subject: Re: [PATCH V5 0/7] Allow user to request memory to be locked on page
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Date: Tue, 28 Jul 2015 13:17:25 +0200
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[I am sorry but I didn't get to this sooner.]

On Mon 27-07-15 10:54:09, Eric B Munson wrote:
> Now that VM_LOCKONFAULT is a modifier to VM_LOCKED and
> cannot be specified independentally, it might make more sense to mirror
> that relationship to userspace.  Which would lead to soemthing like the
> following:

A modifier makes more sense.
 
> To lock and populate a region:
> mlock2(start, len, 0);
> 
> To lock on fault a region:
> mlock2(start, len, MLOCK_ONFAULT);
> 
> If LOCKONFAULT is seen as a modifier to mlock, then having the flags
> argument as 0 mean do mlock classic makes more sense to me.
> 
> To mlock current on fault only:
> mlockall(MCL_CURRENT | MCL_ONFAULT);
> 
> To mlock future on fault only:
> mlockall(MCL_FUTURE | MCL_ONFAULT);
> 
> To lock everything on fault:
> mlockall(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT);

Makes sense to me. The only remaining and still tricky part would be
the munlock{all}(flags) behavior. What should munlock(MLOCK_ONFAULT)
do? Keep locked and poppulate the range or simply ignore the flag an
just unlock?

I can see some sense to allow munlockall(MCL_FUTURE[|MLOCK_ONFAULT]),
munlockall(MCL_CURRENT) resp. munlockall(MCL_CURRENT|MCL_FUTURE) but
other combinations sound weird to me.

Anyway munlock with flags opens new doors of trickiness.
-- 
Michal Hocko
SUSE Labs
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From - Thu Nov 08 21:37:42 2018
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Subject: Re: [PATCH V5 0/7] Allow user to request memory to be locked on page
 fault
Date: Tue, 28 Jul 2015 13:23:29 +0200
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On 07/28/2015 01:17 PM, Michal Hocko wrote:
> [I am sorry but I didn't get to this sooner.]
>
> On Mon 27-07-15 10:54:09, Eric B Munson wrote:
>> Now that VM_LOCKONFAULT is a modifier to VM_LOCKED and
>> cannot be specified independentally, it might make more sense to mirror
>> that relationship to userspace.  Which would lead to soemthing like the
>> following:
>
> A modifier makes more sense.
>
>> To lock and populate a region:
>> mlock2(start, len, 0);
>>
>> To lock on fault a region:
>> mlock2(start, len, MLOCK_ONFAULT);
>>
>> If LOCKONFAULT is seen as a modifier to mlock, then having the flags
>> argument as 0 mean do mlock classic makes more sense to me.
>>
>> To mlock current on fault only:
>> mlockall(MCL_CURRENT | MCL_ONFAULT);
>>
>> To mlock future on fault only:
>> mlockall(MCL_FUTURE | MCL_ONFAULT);
>>
>> To lock everything on fault:
>> mlockall(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT);
>
> Makes sense to me. The only remaining and still tricky part would be
> the munlock{all}(flags) behavior. What should munlock(MLOCK_ONFAULT)
> do? Keep locked and poppulate the range or simply ignore the flag an
> just unlock?

munlock(all) already lost both MLOCK_LOCKED and MLOCK_ONFAULT flags in 
this revision, so I suppose in the next revision it will also not accept 
MLOCK_ONFAULT, and will just munlock whatever was mlocked in either mode.

> I can see some sense to allow munlockall(MCL_FUTURE[|MLOCK_ONFAULT]),
> munlockall(MCL_CURRENT) resp. munlockall(MCL_CURRENT|MCL_FUTURE) but
> other combinations sound weird to me.

The effect of munlockall(MCL_FUTURE|MLOCK_ONFAULT), which you probably 
intended for converting the onfault to full prepopulation for future 
mappings, can be achieved by calling mlockall(MCL_FUTURE) (without 
MLOCK_ONFAULT).

> Anyway munlock with flags opens new doors of trickiness.



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From - Thu Nov 08 21:37:42 2018
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Subject: Re: [PATCH V5 0/7] Allow user to request memory to be locked on page
 fault
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On Tue, 28 Jul 2015, Michal Hocko wrote:

> [I am sorry but I didn't get to this sooner.]
>=20
> On Mon 27-07-15 10:54:09, Eric B Munson wrote:
> > Now that VM_LOCKONFAULT is a modifier to VM_LOCKED and
> > cannot be specified independentally, it might make more sense to mirror
> > that relationship to userspace.  Which would lead to soemthing like the
> > following:
>=20
> A modifier makes more sense.
> =20
> > To lock and populate a region:
> > mlock2(start, len, 0);
> >=20
> > To lock on fault a region:
> > mlock2(start, len, MLOCK_ONFAULT);
> >=20
> > If LOCKONFAULT is seen as a modifier to mlock, then having the flags
> > argument as 0 mean do mlock classic makes more sense to me.
> >=20
> > To mlock current on fault only:
> > mlockall(MCL_CURRENT | MCL_ONFAULT);
> >=20
> > To mlock future on fault only:
> > mlockall(MCL_FUTURE | MCL_ONFAULT);
> >=20
> > To lock everything on fault:
> > mlockall(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT);
>=20
> Makes sense to me. The only remaining and still tricky part would be
> the munlock{all}(flags) behavior. What should munlock(MLOCK_ONFAULT)
> do? Keep locked and poppulate the range or simply ignore the flag an
> just unlock?
>=20
> I can see some sense to allow munlockall(MCL_FUTURE[|MLOCK_ONFAULT]),
> munlockall(MCL_CURRENT) resp. munlockall(MCL_CURRENT|MCL_FUTURE) but
> other combinations sound weird to me.
>=20
> Anyway munlock with flags opens new doors of trickiness.

In the current revision there are no new munlock[all] system calls
introduced.  munlockall() unconditionally cleared both MCL_CURRENT and
MCL_FUTURE before the set and now unconditionally clears all three.
munlock() does the same for VM_LOCK and VM_LOCKONFAULT.  If the user
wants to adjust mlockall flags today, they need to call mlockall a
second time with the new flags, this remains true for mlockall after
this set and the same behavior is mirrored in mlock2.  The only
remaining question I have is should we have 2 new mlockall flags so that
the caller can explicitly set VM_LOCKONFAULT in the mm->def_flags vs
locking all current VMAs on fault.  I ask because if the user wants to
lock all current VMAs the old way, but all future VMAs on fault they
have to call mlockall() twice:

	mlockall(MCL_CURRENT);
	mlockall(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT);

This has the side effect of converting all the current VMAs to
VM_LOCKONFAULT, but because they were all made present and locked in the
first call, this should not matter in most cases.  The catch is that,
like mmap(MAP_LOCKED), mlockall() does not communicate if mm_populate()
fails.  This has been true of mlockall() from the beginning so I don't
know if it needs more than an entry in the man page to clarify (which I
will add when I add documentation for MCL_ONFAULT).  In a much less
likely corner case, it is not possible in the current setup to request
all current VMAs be VM_LOCKONFAULT and all future be VM_LOCKED.


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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: Re: [PATCH V5 0/7] Allow user to request memory to be locked on page
 fault
Date: Tue, 28 Jul 2015 17:10:55 +0200
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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To: Eric B Munson <emunson@akamai.com>,
	Michal Hocko <mhocko@kernel.org>
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On 07/28/2015 03:49 PM, Eric B Munson wrote:
> On Tue, 28 Jul 2015, Michal Hocko wrote:
>

[...]

> The only
> remaining question I have is should we have 2 new mlockall flags so that
> the caller can explicitly set VM_LOCKONFAULT in the mm->def_flags vs
> locking all current VMAs on fault.  I ask because if the user wants to
> lock all current VMAs the old way, but all future VMAs on fault they
> have to call mlockall() twice:
>
> 	mlockall(MCL_CURRENT);
> 	mlockall(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT);
>
> This has the side effect of converting all the current VMAs to
> VM_LOCKONFAULT, but because they were all made present and locked in the
> first call, this should not matter in most cases.

Shouldn't the user be able to do this?

mlockall(MCL_CURRENT)
mlockall(MCL_FUTURE | MCL_ONFAULT);

Note that the second call shouldn't change (i.e. munlock) existing vma's 
just because MCL_CURRENT is not present. The current implementation 
doesn't do that thanks to the following in do_mlockall():

         if (flags == MCL_FUTURE)
                 goto out;

before current vma's are processed and MCL_CURRENT is checked. This is 
probably so that do_mlockall() can also handle the munlockall() syscall.
So we should be careful not to break this, but otherwise there are no 
limitations by not having two MCL_ONFAULT flags. Having to do invoke 
syscalls instead of one is not an issue as this shouldn't be frequent 
syscall.

> The catch is that,
> like mmap(MAP_LOCKED), mlockall() does not communicate if mm_populate()
> fails.  This has been true of mlockall() from the beginning so I don't
> know if it needs more than an entry in the man page to clarify (which I
> will add when I add documentation for MCL_ONFAULT).

Good point.

> In a much less
> likely corner case, it is not possible in the current setup to request
> all current VMAs be VM_LOCKONFAULT and all future be VM_LOCKED.

So again this should work:

mlockall(MCL_CURRENT | MCL_ONFAULT)
mlockall(MCL_FUTURE);

But the order matters here, as current implementation of do_mlockall() 
will clear VM_LOCKED from def_flags if MCL_FUTURE is not passed. So 
*it's different* from how it handles MCL_CURRENT (as explained above). 
And not documented in manpage. Oh crap, this API is a closet full of 
skeletons. Maybe it was an unnoticed regression and we can restore some 
sanity?
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From - Thu Nov 08 21:37:42 2018
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From: Eric B Munson <emunson@akamai.com>
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Subject: Re: [PATCH V5 0/7] Allow user to request memory to be locked on page
 fault
Date: Tue, 28 Jul 2015 14:06:42 -0400
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Approved: news@gmane.org
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Cc: Michal Hocko <mhocko@kernel.org>,
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To: Vlastimil Babka <vbabka@suse.cz>
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On Tue, 28 Jul 2015, Vlastimil Babka wrote:

> On 07/28/2015 03:49 PM, Eric B Munson wrote:
> >On Tue, 28 Jul 2015, Michal Hocko wrote:
> >
>=20
> [...]
>=20
> >The only
> >remaining question I have is should we have 2 new mlockall flags so that
> >the caller can explicitly set VM_LOCKONFAULT in the mm->def_flags vs
> >locking all current VMAs on fault.  I ask because if the user wants to
> >lock all current VMAs the old way, but all future VMAs on fault they
> >have to call mlockall() twice:
> >
> >	mlockall(MCL_CURRENT);
> >	mlockall(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT);
> >
> >This has the side effect of converting all the current VMAs to
> >VM_LOCKONFAULT, but because they were all made present and locked in the
> >first call, this should not matter in most cases.
>=20
> Shouldn't the user be able to do this?
>=20
> mlockall(MCL_CURRENT)
> mlockall(MCL_FUTURE | MCL_ONFAULT);
>=20
> Note that the second call shouldn't change (i.e. munlock) existing
> vma's just because MCL_CURRENT is not present. The current
> implementation doesn't do that thanks to the following in
> do_mlockall():
>=20
>         if (flags =3D=3D MCL_FUTURE)
>                 goto out;
>=20
> before current vma's are processed and MCL_CURRENT is checked. This
> is probably so that do_mlockall() can also handle the munlockall()
> syscall.
> So we should be careful not to break this, but otherwise there are
> no limitations by not having two MCL_ONFAULT flags. Having to do
> invoke syscalls instead of one is not an issue as this shouldn't be
> frequent syscall.

Good catch, my current implementation did break this and is now fixed.

>=20
> >The catch is that,
> >like mmap(MAP_LOCKED), mlockall() does not communicate if mm_populate()
> >fails.  This has been true of mlockall() from the beginning so I don't
> >know if it needs more than an entry in the man page to clarify (which I
> >will add when I add documentation for MCL_ONFAULT).
>=20
> Good point.
>=20
> >In a much less
> >likely corner case, it is not possible in the current setup to request
> >all current VMAs be VM_LOCKONFAULT and all future be VM_LOCKED.
>=20
> So again this should work:
>=20
> mlockall(MCL_CURRENT | MCL_ONFAULT)
> mlockall(MCL_FUTURE);
>=20
> But the order matters here, as current implementation of
> do_mlockall() will clear VM_LOCKED from def_flags if MCL_FUTURE is
> not passed. So *it's different* from how it handles MCL_CURRENT (as
> explained above). And not documented in manpage. Oh crap, this API
> is a closet full of skeletons. Maybe it was an unnoticed regression
> and we can restore some sanity?

I will add a note about the ordering problem to the manpage as well.
Unfortunately, the basic idea of clearing VM_LOCKED from mm->def_flags
if MCL_FUTURE is not specified but not doing the same for MCL_CURRENT
predates the move to git, so I am not sure if it was ever different.


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From - Thu Nov 08 21:37:42 2018
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From: Michal Hocko <mhocko@kernel.org>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: Re: [PATCH V5 0/7] Allow user to request memory to be locked on page
 fault
Date: Wed, 29 Jul 2015 12:45:32 +0200
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Cc: Vlastimil Babka <vbabka@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
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To: Eric B Munson <emunson@akamai.com>
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On Tue 28-07-15 09:49:42, Eric B Munson wrote:
> On Tue, 28 Jul 2015, Michal Hocko wrote:
> 
> > [I am sorry but I didn't get to this sooner.]
> > 
> > On Mon 27-07-15 10:54:09, Eric B Munson wrote:
> > > Now that VM_LOCKONFAULT is a modifier to VM_LOCKED and
> > > cannot be specified independentally, it might make more sense to mirror
> > > that relationship to userspace.  Which would lead to soemthing like the
> > > following:
> > 
> > A modifier makes more sense.
> >  
> > > To lock and populate a region:
> > > mlock2(start, len, 0);
> > > 
> > > To lock on fault a region:
> > > mlock2(start, len, MLOCK_ONFAULT);
> > > 
> > > If LOCKONFAULT is seen as a modifier to mlock, then having the flags
> > > argument as 0 mean do mlock classic makes more sense to me.
> > > 
> > > To mlock current on fault only:
> > > mlockall(MCL_CURRENT | MCL_ONFAULT);
> > > 
> > > To mlock future on fault only:
> > > mlockall(MCL_FUTURE | MCL_ONFAULT);
> > > 
> > > To lock everything on fault:
> > > mlockall(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT);
> > 
> > Makes sense to me. The only remaining and still tricky part would be
> > the munlock{all}(flags) behavior. What should munlock(MLOCK_ONFAULT)
> > do? Keep locked and poppulate the range or simply ignore the flag an
> > just unlock?
> > 
> > I can see some sense to allow munlockall(MCL_FUTURE[|MLOCK_ONFAULT]),
> > munlockall(MCL_CURRENT) resp. munlockall(MCL_CURRENT|MCL_FUTURE) but
> > other combinations sound weird to me.
> > 
> > Anyway munlock with flags opens new doors of trickiness.
> 
> In the current revision there are no new munlock[all] system calls
> introduced.  munlockall() unconditionally cleared both MCL_CURRENT and
> MCL_FUTURE before the set and now unconditionally clears all three.
> munlock() does the same for VM_LOCK and VM_LOCKONFAULT. 

OK if new munlock{all}(flags) is not introduced then this is much saner
IMO.

> If the user
> wants to adjust mlockall flags today, they need to call mlockall a
> second time with the new flags, this remains true for mlockall after
> this set and the same behavior is mirrored in mlock2. 

OK, this makes sense to me.

> The only
> remaining question I have is should we have 2 new mlockall flags so that
> the caller can explicitly set VM_LOCKONFAULT in the mm->def_flags vs
> locking all current VMAs on fault.  I ask because if the user wants to
> lock all current VMAs the old way, but all future VMAs on fault they
> have to call mlockall() twice:
> 
> 	mlockall(MCL_CURRENT);
> 	mlockall(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT);
> 
> This has the side effect of converting all the current VMAs to
> VM_LOCKONFAULT, but because they were all made present and locked in the
> first call, this should not matter in most cases. 

I think this is OK (worth documenting though) considering that ONFAULT
is just modifier for the current mlock* operation. The memory is locked
the same way for both - aka once the memory is present you do not know
whether it was done during mlock call or later during the fault.

> The catch is that,
> like mmap(MAP_LOCKED), mlockall() does not communicate if mm_populate()
> fails.  This has been true of mlockall() from the beginning so I don't
> know if it needs more than an entry in the man page to clarify (which I
> will add when I add documentation for MCL_ONFAULT).

Yes this is true but unlike mmap it seems fixable I guess. We do not have
to unmap and we can downgrade mmap_sem to read and the fault so nobody
can race with a concurent mlock.

> In a much less
> likely corner case, it is not possible in the current setup to request
> all current VMAs be VM_LOCKONFAULT and all future be VM_LOCKED.

Vlastimil has already pointed that out. MCL_FUTURE doesn't clear
MCL_CURRENT. I was quite surprised in the beginning but it makes a
perfect sense. mlockall call shouldn't lead into munlocking, that would
be just weird. Clearing MCL_FUTURE on MCL_CURRENT makes sense on the
other hand because the request is explicit about _current_ memory and it
doesn't lead to any munlocking.

-- 
Michal Hocko
SUSE Labs
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From - Thu Nov 08 21:37:42 2018
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From: Vlastimil Babka <vbabka@suse.cz>
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Subject: Re: [PATCH V5 0/7] Allow user to request memory to be locked on page
 fault
Date: Wed, 29 Jul 2015 12:49:57 +0200
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Cc: Andrew Morton <akpm@linux-foundation.org>,
 Shuah Khan <shuahkh@osg.samsung.com>,
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To: Michal Hocko <mhocko@kernel.org>, Eric B Munson <emunson@akamai.com>
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On 07/29/2015 12:45 PM, Michal Hocko wrote:
>> In a much less
>> likely corner case, it is not possible in the current setup to request
>> all current VMAs be VM_LOCKONFAULT and all future be VM_LOCKED.
> 
> Vlastimil has already pointed that out. MCL_FUTURE doesn't clear
> MCL_CURRENT. I was quite surprised in the beginning but it makes a
> perfect sense. mlockall call shouldn't lead into munlocking, that would
> be just weird. Clearing MCL_FUTURE on MCL_CURRENT makes sense on the
> other hand because the request is explicit about _current_ memory and it
> doesn't lead to any munlocking.

Yeah after more thinking it does make some sense despite the perceived
inconsistency, but it's definitely worth documenting properly. It also already
covers the usecase for munlockall2(MCL_FUTURE) which IIRC you had in the earlier
revisions...

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From - Thu Nov 08 21:37:42 2018
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Subject: [PATCH V6 0/6] Allow user to request memory to be locked on page fault
Date: Wed, 29 Jul 2015 11:42:49 -0400
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/136496>

mlock() allows a user to control page out of program memory, but this
comes at the cost of faulting in the entire mapping when it is
allocated.  For large mappings where the entire area is not necessary
this is not ideal.  Instead of forcing all locked pages to be present
when they are allocated, this set creates a middle ground.  Pages are
marked to be placed on the unevictable LRU (locked) when they are first
used, but they are not faulted in by the mlock call.

This series introduces a new mlock() system call that takes a flags
argument along with the start address and size.  This flags argument
gives the caller the ability to request memory be locked in the
traditional way, or to be locked after the page is faulted in.  A new
MCL flag is added to mirror the lock on fault behavior from mlock() in
mlockall().

There are two main use cases that this set covers.  The first is the
security focussed mlock case.  A buffer is needed that cannot be written
to swap.  The maximum size is known, but on average the memory used is
significantly less than this maximum.  With lock on fault, the buffer
is guaranteed to never be paged out without consuming the maximum size
every time such a buffer is created.

The second use case is focussed on performance.  Portions of a large
file are needed and we want to keep the used portions in memory once
accessed.  This is the case for large graphical models where the path
through the graph is not known until run time.  The entire graph is
unlikely to be used in a given invocation, but once a node has been
used it needs to stay resident for further processing.  Given these
constraints we have a number of options.  We can potentially waste a
large amount of memory by mlocking the entire region (this can also
cause a significant stall at startup as the entire file is read in).
We can mlock every page as we access them without tracking if the page
is already resident but this introduces large overhead for each access.
The third option is mapping the entire region with PROT_NONE and using
a signal handler for SIGSEGV to mprotect(PROT_READ) and mlock() the
needed page.  Doing this page at a time adds a significant performance
penalty.  Batching can be used to mitigate this overhead, but in order
to safely avoid trying to mprotect pages outside of the mapping, the
boundaries of each mapping to be used in this way must be tracked and
available to the signal handler.  This is precisely what the mm system
in the kernel should already be doing.

For mlock(MLOCK_ONFAULT) the user is charged against RLIMIT_MEMLOCK as
if mlock(MLOCK_LOCKED) or mmap(MAP_LOCKED) was used, so when the VMA is
created not when the pages are faulted in.  For mlockall(MCL_ONFAULT)
the user is charged as if MCL_FUTURE was used.  This decision was made
to keep the accounting checks out of the page fault path.

To illustrate the benefit of this set I wrote a test program that mmaps
a 5 GB file filled with random data and then makes 15,000,000 accesses
to random addresses in that mapping.  The test program was run 20 times
for each setup.  Results are reported for two program portions, setup
and execution.  The setup phase is calling mmap and optionally mlock on
the entire region.  For most experiments this is trivial, but it
highlights the cost of faulting in the entire region.  Results are
averages across the 20 runs in milliseconds.

mmap with mlock(MLOCK_LOCKED) on entire range:
Setup avg:      8228.666
Processing avg: 8274.257

mmap with mlock(MLOCK_LOCKED) before each access:
Setup avg:      0.113
Processing avg: 90993.552

mmap with PROT_NONE and signal handler and batch size of 1 page:
With the default value in max_map_count, this gets ENOMEM as I attempt
to change the permissions, after upping the sysctl significantly I get:
Setup avg:      0.058
Processing avg: 69488.073
mmap with PROT_NONE and signal handler and batch size of 8 pages:
Setup avg:      0.068
Processing avg: 38204.116

mmap with PROT_NONE and signal handler and batch size of 16 pages:
Setup avg:      0.044
Processing avg: 29671.180

mmap with mlock(MLOCK_ONFAULT) on entire range:
Setup avg:      0.189
Processing avg: 17904.899

The signal handler in the batch cases faulted in memory in two steps to
avoid having to know the start and end of the faulting mapping.  The
first step covers the page that caused the fault as we know that it will
be possible to lock.  The second step speculatively tries to mlock and
mprotect the batch size - 1 pages that follow.  There may be a clever
way to avoid this without having the program track each mapping to be
covered by this handeler in a globally accessible structure, but I could
not find it.  It should be noted that with a large enough batch size
this two step fault handler can still cause the program to crash if it
reaches far beyond the end of the mapping.

These results show that if the developer knows that a majority of the
mapping will be used, it is better to try and fault it in at once,
otherwise mlock(MLOCK_ONFAULT) is significantly faster.

The performance cost of these patches are minimal on the two benchmarks
I have tested (stream and kernbench).  The following are the average
values across 20 runs of stream and 10 runs of kernbench after a warmup
run whose results were discarded.

Avg throughput in MB/s from stream using 1000000 element arrays
Test     4.2-rc1      4.2-rc1+lock-on-fault
Copy:    10,566.5     10,421
Scale:   10,685       10,503.5
Add:     12,044.1     11,814.2
Triad:   12,064.8     11,846.3

Kernbench optimal load
                 4.2-rc1  4.2-rc1+lock-on-fault
Elapsed Time     78.453   78.991
User Time        64.2395  65.2355
System Time      9.7335   9.7085
Context Switches 22211.5  22412.1
Sleeps           14965.3  14956.1

---
Changes from V5:
Drop MLOCK_LOCKED flag
* MLOCK_ONFAULT and MCL_ONFAULT are treated as a modifier to other locking
 operations, mirroring the relationship between VM_LOCKED and
 VM_LOCKONFAULT
* Drop mmap flag and related tests
* Fix clearing of MCL_CURRENT when mlockall is called with MCL_FUTURE,
 mlockall behavoir now matches the old behavior WRT to ordering

Changes from V4:
Drop all architectures for new sys call entries except x86[_64] and MIPS
Drop munlock2 and munlockall2
Make VM_LOCKONFAULT a modifier to VM_LOCKED only to simplify book keeping
Adjust tests to match

Changes from V3:
Ensure that pages present when mlock2(MLOCK_ONFAULT) is called are locked
Ensure that VM_LOCKONFAULT is handled in cases that used to only check VM_LOCKED
Add tests for new system calls
Add missing syscall entries, fix NR_syscalls on multiple arch's
Add missing MAP_LOCKONFAULT for tile

Changes from V2:
Added new system calls for mlock, munlock, and munlockall with added
flags arguments for controlling how memory is locked or unlocked.


Eric B Munson (6):
  mm: mlock: Refactor mlock, munlock, and munlockall code
  mm: mlock: Add new mlock system call
  mm: Introduce VM_LOCKONFAULT
  mm: mlock: Add mlock flags to enable VM_LOCKONFAULT usage
  selftests: vm: Add tests for lock on fault
  mips: Add entry for new mlock2 syscall

 arch/alpha/include/uapi/asm/mman.h          |   3 +
 arch/mips/include/uapi/asm/mman.h           |   6 +
 arch/mips/include/uapi/asm/unistd.h         |  15 +-
 arch/mips/kernel/scall32-o32.S              |   1 +
 arch/mips/kernel/scall64-64.S               |   1 +
 arch/mips/kernel/scall64-n32.S              |   1 +
 arch/mips/kernel/scall64-o32.S              |   1 +
 arch/parisc/include/uapi/asm/mman.h         |   3 +
 arch/powerpc/include/uapi/asm/mman.h        |   1 +
 arch/sparc/include/uapi/asm/mman.h          |   1 +
 arch/tile/include/uapi/asm/mman.h           |   1 +
 arch/x86/entry/syscalls/syscall_32.tbl      |   1 +
 arch/x86/entry/syscalls/syscall_64.tbl      |   1 +
 arch/xtensa/include/uapi/asm/mman.h         |   6 +
 drivers/gpu/drm/drm_vm.c                    |   8 +-
 fs/proc/task_mmu.c                          |   1 +
 include/linux/mm.h                          |   2 +
 include/linux/syscalls.h                    |   2 +
 include/uapi/asm-generic/mman-common.h      |   5 +
 include/uapi/asm-generic/mman.h             |   1 +
 include/uapi/asm-generic/unistd.h           |   4 +-
 kernel/fork.c                               |   2 +-
 kernel/sys_ni.c                             |   1 +
 mm/debug.c                                  |   1 +
 mm/gup.c                                    |  10 +-
 mm/huge_memory.c                            |   2 +-
 mm/hugetlb.c                                |   4 +-
 mm/mlock.c                                  |  91 +++-
 mm/mmap.c                                   |   2 +-
 mm/rmap.c                                   |   4 +-
 tools/testing/selftests/vm/Makefile         |   2 +
 tools/testing/selftests/vm/mlock2-tests.c   | 661 ++++++++++++++++++++++++++++
 tools/testing/selftests/vm/on-fault-limit.c |  47 ++
 tools/testing/selftests/vm/run_vmtests      |  22 +
 34 files changed, 873 insertions(+), 41 deletions(-)
 create mode 100644 tools/testing/selftests/vm/mlock2-tests.c
 create mode 100644 tools/testing/selftests/vm/on-fault-limit.c

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org


-- 
1.9.1

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From - Thu Nov 08 21:37:42 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch
Subject: [PATCH V6 2/6] mm: mlock: Add new mlock system call
Date: Wed, 29 Jul 2015 11:42:51 -0400
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Approved: news@gmane.org
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Cc: Eric B Munson <emunson@akamai.com>,
	Michal Hocko <mhocko@suse.cz>,
	Vlastimil Babka <vbabka@suse.cz>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
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	linux-mm@kvack.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/136497>

With the refactored mlock code, introduce a new system call for mlock.
The new call will allow the user to specify what lock states are being
added.  mlock2 is trivial at the moment, but a follow on patch will add
a new mlock state making it useful.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: linux-cris-kernel@axis.com
Cc: linux-ia64@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-am33-list@redhat.com
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mm@kvack.org
---
 arch/x86/entry/syscalls/syscall_32.tbl | 1 +
 arch/x86/entry/syscalls/syscall_64.tbl | 1 +
 include/linux/syscalls.h               | 2 ++
 include/uapi/asm-generic/unistd.h      | 4 +++-
 kernel/sys_ni.c                        | 1 +
 mm/mlock.c                             | 9 +++++++++
 6 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index ef8187f..839d5df 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -365,3 +365,4 @@
 356	i386	memfd_create		sys_memfd_create
 357	i386	bpf			sys_bpf
 358	i386	execveat		sys_execveat			stub32_execveat
+359	i386	mlock2			sys_mlock2
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 9ef32d5..ad36769 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -329,6 +329,7 @@
 320	common	kexec_file_load		sys_kexec_file_load
 321	common	bpf			sys_bpf
 322	64	execveat		stub_execveat
+323	common	mlock2			sys_mlock2
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index b45c45b..56a3d59 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -884,4 +884,6 @@ asmlinkage long sys_execveat(int dfd, const char __user *filename,
 			const char __user *const __user *argv,
 			const char __user *const __user *envp, int flags);
 
+asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
+
 #endif
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index e016bd9..14a6013 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -709,9 +709,11 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
 __SYSCALL(__NR_bpf, sys_bpf)
 #define __NR_execveat 281
 __SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
+#define __NR_mlock2 282
+__SYSCALL(__NR_mlock2, sys_mlock2)
 
 #undef __NR_syscalls
-#define __NR_syscalls 282
+#define __NR_syscalls 283
 
 /*
  * All syscalls below here should go away really,
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 7995ef5..4818b71 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -193,6 +193,7 @@ cond_syscall(sys_mlock);
 cond_syscall(sys_munlock);
 cond_syscall(sys_mlockall);
 cond_syscall(sys_munlockall);
+cond_syscall(sys_mlock2);
 cond_syscall(sys_mincore);
 cond_syscall(sys_madvise);
 cond_syscall(sys_mremap);
diff --git a/mm/mlock.c b/mm/mlock.c
index 1585cca..807f986 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -642,6 +642,15 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 	return do_mlock(start, len, VM_LOCKED);
 }
 
+SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
+{
+	vm_flags_t vm_flags = VM_LOCKED;
+	if (flags)
+		return -EINVAL;
+
+	return do_mlock(start, len, vm_flags);
+}
+
 SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 {
 	int ret;
-- 
1.9.1

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From - Thu Nov 08 21:37:42 2018
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Path: news.gmane.org!not-for-mail
From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH V6 4/6] mm: mlock: Add mlock flags to enable VM_LOCKONFAULT usage
Date: Wed, 29 Jul 2015 11:42:53 -0400
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Cc: Eric B Munson <emunson@akamai.com>,
	Michal Hocko <mhocko@suse.cz>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/136498>

The previous patch introduced a flag that specified pages in a VMA
should be placed on the unevictable LRU, but they should not be made
present when the area is created.  This patch adds the ability to set
this state via the new mlock system calls.

We add MLOCK_ONFAULT for mlock2 and MCL_ONFAULT for mlockall.
MLOCK_ONFAULT will set the VM_LOCKONFAULT modifier for VM_LOCKED.
MCL_ONFAULT should be used as a modifier to the two other mlockall
flags.  When used with MCL_CURRENT, all current mappings will be marked
with VM_LOCKED | VM_LOCKONFAULT.  When used with MCL_FUTURE, the
mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.  When used
with both MCL_CURRENT and MCL_FUTURE, all current mappings and
mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.

Prior to this patch, mlockall() will unconditionally clear the
mm->def_flags any time it is called without MCL_FUTURE.  This behavior
is maintained after adding MCL_ONFAULT.  If a call to
mlockall(MCL_FUTURE) is followed by mlockall(MCL_CURRENT), the
mm->def_flags will be cleared and new VMAs will be unlocked.  This
remains true with or without MCL_ONFAULT in either mlockall()
invocation.

munlock() will unconditionally clear both vma flags.  munlockall()
unconditionally clears for VMA flags on all VMAs and in the
mm->def_flags field.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
Cc: linux-mm@kvack.org
---
 arch/alpha/include/uapi/asm/mman.h     |  3 ++
 arch/mips/include/uapi/asm/mman.h      |  6 ++++
 arch/parisc/include/uapi/asm/mman.h    |  3 ++
 arch/powerpc/include/uapi/asm/mman.h   |  1 +
 arch/sparc/include/uapi/asm/mman.h     |  1 +
 arch/tile/include/uapi/asm/mman.h      |  1 +
 arch/xtensa/include/uapi/asm/mman.h    |  6 ++++
 include/uapi/asm-generic/mman-common.h |  5 ++++
 include/uapi/asm-generic/mman.h        |  1 +
 mm/mlock.c                             | 55 ++++++++++++++++++++++++++--------
 10 files changed, 70 insertions(+), 12 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..f2f9496 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -37,6 +37,9 @@
 
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
+#define MCL_ONFAULT	32768		/* lock all pages that are faulted in */
+
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..97c03f4 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -61,6 +61,12 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
+/*
+ * Flags for mlock
+ */
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..ecc3ae1 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -31,6 +31,9 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 6ea26df..03c06ba 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -22,6 +22,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 0b14df3..9765896 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -17,6 +17,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index 81b8fc3..63ee13f 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -36,6 +36,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..360944e 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -74,6 +74,12 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
+/*
+ * Flags for mlock
+ */
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h
index ddc3b36..a74dd84 100644
--- a/include/uapi/asm-generic/mman-common.h
+++ b/include/uapi/asm-generic/mman-common.h
@@ -25,6 +25,11 @@
 # define MAP_UNINITIALIZED 0x0		/* Don't support this flag */
 #endif
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
+
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_INVALIDATE	2		/* invalidate the caches */
 #define MS_SYNC		4		/* synchronous memory sync */
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index e9fe6fd..7162cd4 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -17,5 +17,6 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/mm/mlock.c b/mm/mlock.c
index 2a3a860..5eeeb83 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -506,7 +506,8 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
 
 	if (newflags == vma->vm_flags || (vma->vm_flags & VM_SPECIAL) ||
 	    is_vm_hugetlb_page(vma) || vma == get_gate_vma(current->mm))
-		goto out;	/* don't set VM_LOCKED,  don't count */
+		/* don't set VM_LOCKED or VM_LOCKONFAULT and don't count */
+		goto out;
 
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,
@@ -576,7 +577,7 @@ static int apply_vma_lock_flags(unsigned long start, size_t len,
 		prev = vma;
 
 	for (nstart = start ; ; ) {
-		vm_flags_t newflags = vma->vm_flags & ~VM_LOCKED;
+		vm_flags_t newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
 		newflags |= flags;
 
 		/* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
@@ -645,9 +646,12 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
 {
 	vm_flags_t vm_flags = VM_LOCKED;
-	if (flags)
+	if (flags & ~MLOCK_ONFAULT)
 		return -EINVAL;
 
+	if (flags & MLOCK_ONFAULT)
+		vm_flags |= VM_LOCKONFAULT;
+
 	return do_mlock(start, len, vm_flags);
 }
 
@@ -665,24 +669,50 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 	return ret;
 }
 
+/*
+ * Take the MCL_* flags passed into mlockall (or 0 if called from munlockall)
+ * and translate into the appropriate modifications to mm->def_flags and/or the
+ * flags for all current VMAs.
+ *
+ * There are a couple of sublties with this.  If mlockall() is called multiple
+ * times with different flags, the values do not necessarily stack.  If mlockall
+ * is called once including the MCL_FUTURE flag and then a second time without
+ * it, VM_LOCKED and VM_LOCKONFAULT will be cleared from mm->def_flags.
+ */
 static int apply_mlockall_flags(int flags)
 {
 	struct vm_area_struct * vma, * prev = NULL;
+	vm_flags_t to_add = 0;
 
-	if (flags & MCL_FUTURE)
+	current->mm->def_flags &= ~(VM_LOCKED | VM_LOCKONFAULT);
+	if (flags & MCL_FUTURE) {
 		current->mm->def_flags |= VM_LOCKED;
-	else
-		current->mm->def_flags &= ~VM_LOCKED;
 
-	if (flags == MCL_FUTURE)
-		goto out;
+		if (flags & MCL_ONFAULT)
+			current->mm->def_flags |= VM_LOCKONFAULT;
+
+		/*
+		 * When there were only two flags, we used to early out if only
+		 * MCL_FUTURE was set.  Now that we have MCL_ONFAULT, we can
+		 * only early out if MCL_FUTURE is set, but MCL_CURRENT is not.
+		 * This is done, even though it promotes odd behavior, to
+		 * maintain behavior from older kernels
+		 */
+		if (!(flags & MCL_CURRENT))
+			goto out;
+	}
+
+	if (flags & MCL_CURRENT) {
+		to_add |= VM_LOCKED;
+		if (flags & MCL_ONFAULT)
+			to_add |= VM_LOCKONFAULT;
+	}
 
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
-		if (flags & MCL_CURRENT)
-			newflags |= VM_LOCKED;
+		newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
+		newflags |= to_add;
 
 		/* Ignore errors */
 		mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);
@@ -697,7 +727,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	unsigned long lock_limit;
 	int ret = -EINVAL;
 
-	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
+	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT)) ||
+	    flags == MCL_ONFAULT)
 		goto out;
 
 	ret = -EPERM;
-- 
1.9.1

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Commit 3cc2dac5be3f ("drivers/video/fbdev/atyfb: Replace MTRR UC hole
with strong UC") introduces calls to ioremap_wc and ioremap_uc. This
causes build failures with parisc:allmodconfig. Map the missing
functions to ioremap_nocache.

Fixes: 3cc2dac5be3f ("drivers/video/fbdev/atyfb:
	Replace MTRR UC hole with strong UC")
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/parisc/include/asm/io.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 8cd0abf28ffb..1a16f1d1075f 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -137,6 +137,8 @@ static inline void __iomem * ioremap(unsigned long offset, unsigned long size)
 	return __ioremap(offset, size, _PAGE_NO_CACHE);
 }
 #define ioremap_nocache(off, sz)	ioremap((off), (sz))
+#define ioremap_wc			ioremap_nocache
+#define ioremap_uc			ioremap_nocache
 
 extern void iounmap(const volatile void __iomem *addr);
 
-- 
2.1.4

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Subject: Re: [PATCH V6 2/6] mm: mlock: Add new mlock system call
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To: Eric B Munson <emunson@akamai.com>,
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On 07/29/2015 05:42 PM, Eric B Munson wrote:
> With the refactored mlock code, introduce a new system call for mlock.
> The new call will allow the user to specify what lock states are being
> added.  mlock2 is trivial at the moment, but a follow on patch will add
> a new mlock state making it useful.
>
> Signed-off-by: Eric B Munson <emunson@akamai.com>
> Cc: Michal Hocko <mhocko@suse.cz>
> Cc: Vlastimil Babka <vbabka@suse.cz>

Acked-by: Vlastimil Babka <vbabka@suse.cz>

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From - Thu Nov 08 21:37:43 2018
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Subject: Re: [PATCH V6 4/6] mm: mlock: Add mlock flags to enable
 VM_LOCKONFAULT usage
Date: Fri, 7 Aug 2015 13:50:01 +0200
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Cc: Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>, Jonathan Corbet <corbet-T1hC0tSOHrs@public.gmane.org>,
	"Kirill A. Shutemov" <kirill-oKw7cIdHH8eLwutG50LtGA@public.gmane.org>,
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To: Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org>,
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On 07/29/2015 05:42 PM, Eric B Munson wrote:
> The previous patch introduced a flag that specified pages in a VMA
> should be placed on the unevictable LRU, but they should not be made
> present when the area is created.  This patch adds the ability to set
> this state via the new mlock system calls.
>
> We add MLOCK_ONFAULT for mlock2 and MCL_ONFAULT for mlockall.
> MLOCK_ONFAULT will set the VM_LOCKONFAULT modifier for VM_LOCKED.
> MCL_ONFAULT should be used as a modifier to the two other mlockall
> flags.  When used with MCL_CURRENT, all current mappings will be marked
> with VM_LOCKED | VM_LOCKONFAULT.  When used with MCL_FUTURE, the
> mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.  When used
> with both MCL_CURRENT and MCL_FUTURE, all current mappings and
> mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.
>
> Prior to this patch, mlockall() will unconditionally clear the
> mm->def_flags any time it is called without MCL_FUTURE.  This behavior
> is maintained after adding MCL_ONFAULT.  If a call to
> mlockall(MCL_FUTURE) is followed by mlockall(MCL_CURRENT), the
> mm->def_flags will be cleared and new VMAs will be unlocked.  This
> remains true with or without MCL_ONFAULT in either mlockall()
> invocation.
>
> munlock() will unconditionally clear both vma flags.  munlockall()
> unconditionally clears for VMA flags on all VMAs and in the
> mm->def_flags field.
>
> Signed-off-by: Eric B Munson <emunson-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org>
> Cc: Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>
> Cc: Vlastimil Babka <vbabka-AlSwsSmVLrQ@public.gmane.org>

The logic seems ok, although the fact that apply_mlockall_flags() is 
shared by both mlockall and munlockall makes it even more subtle than 
before :)

Anyway, just some nitpicks below.

Acked-by: Vlastimil Babka <vbabka-AlSwsSmVLrQ@public.gmane.org>

[...]

> +/*
> + * Take the MCL_* flags passed into mlockall (or 0 if called from munlockall)
> + * and translate into the appropriate modifications to mm->def_flags and/or the
> + * flags for all current VMAs.
> + *
> + * There are a couple of sublties with this.  If mlockall() is called multiple

                             ^ typo

> + * times with different flags, the values do not necessarily stack.  If mlockall
> + * is called once including the MCL_FUTURE flag and then a second time without
> + * it, VM_LOCKED and VM_LOCKONFAULT will be cleared from mm->def_flags.
> + */
>   static int apply_mlockall_flags(int flags)
>   {
>   	struct vm_area_struct * vma, * prev = NULL;
> +	vm_flags_t to_add = 0;
>
> -	if (flags & MCL_FUTURE)
> +	current->mm->def_flags &= ~(VM_LOCKED | VM_LOCKONFAULT);
> +	if (flags & MCL_FUTURE) {
>   		current->mm->def_flags |= VM_LOCKED;
> -	else
> -		current->mm->def_flags &= ~VM_LOCKED;
>
> -	if (flags == MCL_FUTURE)
> -		goto out;
> +		if (flags & MCL_ONFAULT)
> +			current->mm->def_flags |= VM_LOCKONFAULT;
> +
> +		/*
> +		 * When there were only two flags, we used to early out if only
> +		 * MCL_FUTURE was set.  Now that we have MCL_ONFAULT, we can
> +		 * only early out if MCL_FUTURE is set, but MCL_CURRENT is not.

Describing the relation to history of individual code lines in such 
detail is noise imho. The stacking subtleties is already described above.

> +		 * This is done, even though it promotes odd behavior, to
> +		 * maintain behavior from older kernels
> +		 */
> +		if (!(flags & MCL_CURRENT))
> +			goto out;

From - Thu Nov 08 21:37:43 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH v7 4/6] mm: mlock: Add mlock flags to enable VM_LOCKONFAULT usage
Date: Sun,  9 Aug 2015 01:22:54 -0400
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Cc: Eric B Munson <emunson@akamai.com>,
	Michal Hocko <mhocko@suse.cz>,
	Vlastimil Babka <vbabka@suse.cz>,
	Jonathan Corbet <corbet@lwn.net>,
	"Kirill A. Shutemov" <kirill@shutemov.name>,
	linux-alpha@vger.kernel.org,
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To: Andrew Morton <akpm@linux-foundation.org>
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Xref: news.gmane.org gmane.linux.kernel.mm:136897 gmane.linux.ports.alpha:3269 gmane.linux.kernel:2016249 gmane.linux.ports.mips.general:49891 gmane.linux.ports.parisc:25896 gmane.linux.ports.ppc64.devel:116574 gmane.linux.ports.sparc:21369 gmane.linux.kernel.cross-arch:28815 gmane.linux.kernel.api:13486
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/136897>

The previous patch introduced a flag that specified pages in a VMA
should be placed on the unevictable LRU, but they should not be made
present when the area is created.  This patch adds the ability to set
this state via the new mlock system calls.

We add MLOCK_ONFAULT for mlock2 and MCL_ONFAULT for mlockall.
MLOCK_ONFAULT will set the VM_LOCKONFAULT modifier for VM_LOCKED.
MCL_ONFAULT should be used as a modifier to the two other mlockall
flags.  When used with MCL_CURRENT, all current mappings will be marked
with VM_LOCKED | VM_LOCKONFAULT.  When used with MCL_FUTURE, the
mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.  When used
with both MCL_CURRENT and MCL_FUTURE, all current mappings and
mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.

Prior to this patch, mlockall() will unconditionally clear the
mm->def_flags any time it is called without MCL_FUTURE.  This behavior
is maintained after adding MCL_ONFAULT.  If a call to
mlockall(MCL_FUTURE) is followed by mlockall(MCL_CURRENT), the
mm->def_flags will be cleared and new VMAs will be unlocked.  This
remains true with or without MCL_ONFAULT in either mlockall()
invocation.

munlock() will unconditionally clear both vma flags.  munlockall()
unconditionally clears for VMA flags on all VMAs and in the
mm->def_flags field.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
Cc: linux-mm@kvack.org
---
 arch/alpha/include/uapi/asm/mman.h     |  3 ++
 arch/mips/include/uapi/asm/mman.h      |  6 ++++
 arch/parisc/include/uapi/asm/mman.h    |  3 ++
 arch/powerpc/include/uapi/asm/mman.h   |  1 +
 arch/sparc/include/uapi/asm/mman.h     |  1 +
 arch/tile/include/uapi/asm/mman.h      |  1 +
 arch/xtensa/include/uapi/asm/mman.h    |  6 ++++
 include/uapi/asm-generic/mman-common.h |  5 ++++
 include/uapi/asm-generic/mman.h        |  1 +
 mm/mlock.c                             | 53 +++++++++++++++++++++++++---------
 10 files changed, 67 insertions(+), 13 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..f2f9496 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -37,6 +37,9 @@
 
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
+#define MCL_ONFAULT	32768		/* lock all pages that are faulted in */
+
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..97c03f4 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -61,6 +61,12 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
+/*
+ * Flags for mlock
+ */
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..ecc3ae1 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -31,6 +31,9 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 6ea26df..03c06ba 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -22,6 +22,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 0b14df3..9765896 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -17,6 +17,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index 81b8fc3..63ee13f 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -36,6 +36,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..360944e 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -74,6 +74,12 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
+/*
+ * Flags for mlock
+ */
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h
index ddc3b36..a74dd84 100644
--- a/include/uapi/asm-generic/mman-common.h
+++ b/include/uapi/asm-generic/mman-common.h
@@ -25,6 +25,11 @@
 # define MAP_UNINITIALIZED 0x0		/* Don't support this flag */
 #endif
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
+
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_INVALIDATE	2		/* invalidate the caches */
 #define MS_SYNC		4		/* synchronous memory sync */
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index e9fe6fd..7162cd4 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -17,5 +17,6 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/mm/mlock.c b/mm/mlock.c
index 029a75b..7e1b8c5 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -506,7 +506,8 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
 
 	if (newflags == vma->vm_flags || (vma->vm_flags & VM_SPECIAL) ||
 	    is_vm_hugetlb_page(vma) || vma == get_gate_vma(current->mm))
-		goto out;	/* don't set VM_LOCKED,  don't count */
+		/* don't set VM_LOCKED or VM_LOCKONFAULT and don't count */
+		goto out;
 
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,
@@ -576,7 +577,8 @@ static int apply_vma_lock_flags(unsigned long start, size_t len,
 		prev = vma;
 
 	for (nstart = start ; ; ) {
-		vm_flags_t newflags = vma->vm_flags & ~VM_LOCKED;
+		vm_flags_t newflags =
+			vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
 
 		newflags |= flags;
 
@@ -645,10 +647,15 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 
 SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
 {
-	if (flags)
+	vm_flags_t vm_flags = VM_LOCKED;
+
+	if (flags & ~MLOCK_ONFAULT)
 		return -EINVAL;
 
-	return do_mlock(start, len, VM_LOCKED);
+	if (flags & MLOCK_ONFAULT)
+		vm_flags |= VM_LOCKONFAULT;
+
+	return do_mlock(start, len, vm_flags);
 }
 
 SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
@@ -665,24 +672,43 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 	return ret;
 }
 
+/*
+ * Take the MCL_* flags passed into mlockall (or 0 if called from munlockall)
+ * and translate into the appropriate modifications to mm->def_flags and/or the
+ * flags for all current VMAs.
+ *
+ * There are a couple of subtleties with this.  If mlockall() is called multiple
+ * times with different flags, the values do not necessarily stack.  If mlockall
+ * is called once including the MCL_FUTURE flag and then a second time without
+ * it, VM_LOCKED and VM_LOCKONFAULT will be cleared from mm->def_flags.
+ */
 static int apply_mlockall_flags(int flags)
 {
 	struct vm_area_struct * vma, * prev = NULL;
+	vm_flags_t to_add = 0;
 
-	if (flags & MCL_FUTURE)
+	current->mm->def_flags &= ~(VM_LOCKED | VM_LOCKONFAULT);
+	if (flags & MCL_FUTURE) {
 		current->mm->def_flags |= VM_LOCKED;
-	else
-		current->mm->def_flags &= ~VM_LOCKED;
 
-	if (flags == MCL_FUTURE)
-		goto out;
+		if (flags & MCL_ONFAULT)
+			current->mm->def_flags |= VM_LOCKONFAULT;
+
+		if (!(flags & MCL_CURRENT))
+			goto out;
+	}
+
+	if (flags & MCL_CURRENT) {
+		to_add |= VM_LOCKED;
+		if (flags & MCL_ONFAULT)
+			to_add |= VM_LOCKONFAULT;
+	}
 
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
-		if (flags & MCL_CURRENT)
-			newflags |= VM_LOCKED;
+		newflags = vma->vm_flags & ~(VM_LOCKED | VM_LOCKONFAULT);
+		newflags |= to_add;
 
 		/* Ignore errors */
 		mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);
@@ -697,7 +723,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	unsigned long lock_limit;
 	int ret = -EINVAL;
 
-	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
+	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT)) ||
+	    flags == MCL_ONFAULT)
 		goto out;
 
 	ret = -EPERM;
-- 
1.9.1

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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH v7 0/6] Allow user to request memory to be locked on page fault
Date: Sun,  9 Aug 2015 01:22:50 -0400
Lines: 226
Approved: news@gmane.org
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Cc: Eric B Munson <emunson@akamai.com>,
	Shuah Khan <shuahkh@osg.samsung.com>,
	Michal Hocko <mhocko@suse.cz>,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	Vlastimil Babka <vbabka@suse.cz>,
	Jonathan Corbet <corbet@lwn.net>,
	Ralf Baechle <ralf@linux-mips.org>,
	Andrea Arcangeli <aarcange@redhat.com>,
	linux-alpha@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-mips@linux-mips.org,
	linux-parisc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org,
	sparclinux@vger.kernel.org,
	linux-xtensa@linux-xtensa.org,
	linux-mm@kvack.org,
	linux-arch@vger.kernel.org,
	linux-api@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
Original-X-From: owner-linux-mm@kvack.org Sun Aug 09 07:23:13 2015
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Xref: news.gmane.org gmane.linux.kernel.mm:136898 gmane.linux.ports.alpha:3270 gmane.linux.kernel:2016250 gmane.linux.ports.mips.general:49892 gmane.linux.ports.parisc:25897 gmane.linux.ports.ppc64.devel:116575 gmane.linux.ports.sparc:21370 gmane.linux.kernel.cross-arch:28816 gmane.linux.kernel.api:13487
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/136898>

mlock() allows a user to control page out of program memory, but this
comes at the cost of faulting in the entire mapping when it is
allocated.  For large mappings where the entire area is not necessary
this is not ideal.  Instead of forcing all locked pages to be present
when they are allocated, this set creates a middle ground.  Pages are
marked to be placed on the unevictable LRU (locked) when they are first
used, but they are not faulted in by the mlock call.

This series introduces a new mlock() system call that takes a flags
argument along with the start address and size.  This flags argument
gives the caller the ability to request memory be locked in the
traditional way, or to be locked after the page is faulted in.  A new
MCL flag is added to mirror the lock on fault behavior from mlock() in
mlockall().

There are two main use cases that this set covers.  The first is the
security focussed mlock case.  A buffer is needed that cannot be written
to swap.  The maximum size is known, but on average the memory used is
significantly less than this maximum.  With lock on fault, the buffer
is guaranteed to never be paged out without consuming the maximum size
every time such a buffer is created.

The second use case is focussed on performance.  Portions of a large
file are needed and we want to keep the used portions in memory once
accessed.  This is the case for large graphical models where the path
through the graph is not known until run time.  The entire graph is
unlikely to be used in a given invocation, but once a node has been
used it needs to stay resident for further processing.  Given these
constraints we have a number of options.  We can potentially waste a
large amount of memory by mlocking the entire region (this can also
cause a significant stall at startup as the entire file is read in).
We can mlock every page as we access them without tracking if the page
is already resident but this introduces large overhead for each access.
The third option is mapping the entire region with PROT_NONE and using
a signal handler for SIGSEGV to mprotect(PROT_READ) and mlock() the
needed page.  Doing this page at a time adds a significant performance
penalty.  Batching can be used to mitigate this overhead, but in order
to safely avoid trying to mprotect pages outside of the mapping, the
boundaries of each mapping to be used in this way must be tracked and
available to the signal handler.  This is precisely what the mm system
in the kernel should already be doing.

For mlock(MLOCK_ONFAULT) the user is charged against RLIMIT_MEMLOCK as
if mlock(MLOCK_LOCKED) or mmap(MAP_LOCKED) was used, so when the VMA is
created not when the pages are faulted in.  For mlockall(MCL_ONFAULT)
the user is charged as if MCL_FUTURE was used.  This decision was made
to keep the accounting checks out of the page fault path.

To illustrate the benefit of this set I wrote a test program that mmaps
a 5 GB file filled with random data and then makes 15,000,000 accesses
to random addresses in that mapping.  The test program was run 20 times
for each setup.  Results are reported for two program portions, setup
and execution.  The setup phase is calling mmap and optionally mlock on
the entire region.  For most experiments this is trivial, but it
highlights the cost of faulting in the entire region.  Results are
averages across the 20 runs in milliseconds.

mmap with mlock(MLOCK_LOCKED) on entire range:
Setup avg:      8228.666
Processing avg: 8274.257

mmap with mlock(MLOCK_LOCKED) before each access:
Setup avg:      0.113
Processing avg: 90993.552

mmap with PROT_NONE and signal handler and batch size of 1 page:
With the default value in max_map_count, this gets ENOMEM as I attempt
to change the permissions, after upping the sysctl significantly I get:
Setup avg:      0.058
Processing avg: 69488.073
mmap with PROT_NONE and signal handler and batch size of 8 pages:
Setup avg:      0.068
Processing avg: 38204.116

mmap with PROT_NONE and signal handler and batch size of 16 pages:
Setup avg:      0.044
Processing avg: 29671.180

mmap with mlock(MLOCK_ONFAULT) on entire range:
Setup avg:      0.189
Processing avg: 17904.899

The signal handler in the batch cases faulted in memory in two steps to
avoid having to know the start and end of the faulting mapping.  The
first step covers the page that caused the fault as we know that it will
be possible to lock.  The second step speculatively tries to mlock and
mprotect the batch size - 1 pages that follow.  There may be a clever
way to avoid this without having the program track each mapping to be
covered by this handeler in a globally accessible structure, but I could
not find it.  It should be noted that with a large enough batch size
this two step fault handler can still cause the program to crash if it
reaches far beyond the end of the mapping.

These results show that if the developer knows that a majority of the
mapping will be used, it is better to try and fault it in at once,
otherwise mlock(MLOCK_ONFAULT) is significantly faster.

The performance cost of these patches are minimal on the two benchmarks
I have tested (stream and kernbench).  The following are the average
values across 20 runs of stream and 10 runs of kernbench after a warmup
run whose results were discarded.

Avg throughput in MB/s from stream using 1000000 element arrays
Test     4.2-rc1      4.2-rc1+lock-on-fault
Copy:    10,566.5     10,421
Scale:   10,685       10,503.5
Add:     12,044.1     11,814.2
Triad:   12,064.8     11,846.3

Kernbench optimal load
                 4.2-rc1  4.2-rc1+lock-on-fault
Elapsed Time     78.453   78.991
User Time        64.2395  65.2355
System Time      9.7335   9.7085
Context Switches 22211.5  22412.1
Sleeps           14965.3  14956.1

---
Changes from V6:
* Bump the x86 system call number to avoid collision with userfaultfd
* Fix FOLL_POPULATE and FOLL_MLOCK usage when mmap is called with
 MAP_POPULATE
* Add documentation for the proc smaps change
* checkpatch fixes

Changes from V5:
Drop MLOCK_LOCKED flag
* MLOCK_ONFAULT and MCL_ONFAULT are treated as a modifier to other locking
 operations, mirroring the relationship between VM_LOCKED and
 VM_LOCKONFAULT
* Drop mmap flag and related tests
* Fix clearing of MCL_CURRENT when mlockall is called with MCL_FUTURE,
 mlockall behavoir now matches the old behavior WRT to ordering

Changes from V4:
Drop all architectures for new sys call entries except x86[_64] and MIPS
Drop munlock2 and munlockall2
Make VM_LOCKONFAULT a modifier to VM_LOCKED only to simplify book keeping
Adjust tests to match

Changes from V3:
Ensure that pages present when mlock2(MLOCK_ONFAULT) is called are locked
Ensure that VM_LOCKONFAULT is handled in cases that used to only check VM_LOCKED
Add tests for new system calls
Add missing syscall entries, fix NR_syscalls on multiple arch's
Add missing MAP_LOCKONFAULT for tile

Changes from V2:
Added new system calls for mlock, munlock, and munlockall with added
flags arguments for controlling how memory is locked or unlocked.


Eric B Munson (6):
  mm: mlock: Refactor mlock, munlock, and munlockall code
  mm: mlock: Add new mlock system call
  mm: Introduce VM_LOCKONFAULT
  mm: mlock: Add mlock flags to enable VM_LOCKONFAULT usage
  selftests: vm: Add tests for lock on fault
  mips: Add entry for new mlock2 syscall

 Documentation/filesystems/proc.txt          |   1 +
 arch/alpha/include/uapi/asm/mman.h          |   3 +
 arch/mips/include/uapi/asm/mman.h           |   6 +
 arch/mips/include/uapi/asm/unistd.h         |  15 +-
 arch/mips/kernel/scall32-o32.S              |   1 +
 arch/mips/kernel/scall64-64.S               |   1 +
 arch/mips/kernel/scall64-n32.S              |   1 +
 arch/mips/kernel/scall64-o32.S              |   1 +
 arch/parisc/include/uapi/asm/mman.h         |   3 +
 arch/powerpc/include/uapi/asm/mman.h        |   1 +
 arch/sparc/include/uapi/asm/mman.h          |   1 +
 arch/tile/include/uapi/asm/mman.h           |   1 +
 arch/x86/entry/syscalls/syscall_32.tbl      |   1 +
 arch/x86/entry/syscalls/syscall_64.tbl      |   1 +
 arch/xtensa/include/uapi/asm/mman.h         |   6 +
 drivers/gpu/drm/drm_vm.c                    |   8 +-
 fs/proc/task_mmu.c                          |   1 +
 include/linux/mm.h                          |   2 +
 include/linux/syscalls.h                    |   2 +
 include/uapi/asm-generic/mman-common.h      |   5 +
 include/uapi/asm-generic/mman.h             |   1 +
 include/uapi/asm-generic/unistd.h           |   4 +-
 kernel/fork.c                               |   2 +-
 kernel/sys_ni.c                             |   1 +
 mm/debug.c                                  |   1 +
 mm/gup.c                                    |  10 +-
 mm/huge_memory.c                            |   2 +-
 mm/hugetlb.c                                |   4 +-
 mm/mlock.c                                  |  87 +++-
 mm/mmap.c                                   |   2 +-
 mm/rmap.c                                   |   6 +-
 tools/testing/selftests/vm/Makefile         |   2 +
 tools/testing/selftests/vm/mlock2-tests.c   | 661 ++++++++++++++++++++++++++++
 tools/testing/selftests/vm/on-fault-limit.c |  47 ++
 tools/testing/selftests/vm/run_vmtests      |  22 +
 35 files changed, 872 insertions(+), 41 deletions(-)
 create mode 100644 tools/testing/selftests/vm/mlock2-tests.c
 create mode 100644 tools/testing/selftests/vm/on-fault-limit.c

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org

-- 
1.9.1

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From - Thu Nov 08 21:37:43 2018
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Path: news.gmane.org!not-for-mail
From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch
Subject: [PATCH v7 2/6] mm: mlock: Add new mlock system call
Date: Sun,  9 Aug 2015 01:22:52 -0400
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Cc: Eric B Munson <emunson@akamai.com>,
	Michal Hocko <mhocko@suse.cz>,
	Vlastimil Babka <vbabka@suse.cz>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
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	linux-mm@kvack.org
To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/136899>

With the refactored mlock code, introduce a new system call for mlock.
The new call will allow the user to specify what lock states are being
added.  mlock2 is trivial at the moment, but a follow on patch will add
a new mlock state making it useful.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: linux-cris-kernel@axis.com
Cc: linux-ia64@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-am33-list@redhat.com
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mm@kvack.org
---
 arch/x86/entry/syscalls/syscall_32.tbl | 1 +
 arch/x86/entry/syscalls/syscall_64.tbl | 1 +
 include/linux/syscalls.h               | 2 ++
 include/uapi/asm-generic/unistd.h      | 4 +++-
 kernel/sys_ni.c                        | 1 +
 mm/mlock.c                             | 8 ++++++++
 6 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index ef8187f..8e06da6 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -365,3 +365,4 @@
 356	i386	memfd_create		sys_memfd_create
 357	i386	bpf			sys_bpf
 358	i386	execveat		sys_execveat			stub32_execveat
+360	i386	mlock2			sys_mlock2
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 9ef32d5..67601e7 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -329,6 +329,7 @@
 320	common	kexec_file_load		sys_kexec_file_load
 321	common	bpf			sys_bpf
 322	64	execveat		stub_execveat
+324	common	mlock2			sys_mlock2
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index b45c45b..56a3d59 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -884,4 +884,6 @@ asmlinkage long sys_execveat(int dfd, const char __user *filename,
 			const char __user *const __user *argv,
 			const char __user *const __user *envp, int flags);
 
+asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
+
 #endif
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index e016bd9..14a6013 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -709,9 +709,11 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
 __SYSCALL(__NR_bpf, sys_bpf)
 #define __NR_execveat 281
 __SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
+#define __NR_mlock2 282
+__SYSCALL(__NR_mlock2, sys_mlock2)
 
 #undef __NR_syscalls
-#define __NR_syscalls 282
+#define __NR_syscalls 283
 
 /*
  * All syscalls below here should go away really,
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 7995ef5..4818b71 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -193,6 +193,7 @@ cond_syscall(sys_mlock);
 cond_syscall(sys_munlock);
 cond_syscall(sys_mlockall);
 cond_syscall(sys_munlockall);
+cond_syscall(sys_mlock2);
 cond_syscall(sys_mincore);
 cond_syscall(sys_madvise);
 cond_syscall(sys_mremap);
diff --git a/mm/mlock.c b/mm/mlock.c
index 5692ee5..3094f27 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -643,6 +643,14 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 	return do_mlock(start, len, VM_LOCKED);
 }
 
+SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
+{
+	if (flags)
+		return -EINVAL;
+
+	return do_mlock(start, len, VM_LOCKED);
+}
+
 SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 {
 	int ret;
-- 
1.9.1

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From - Thu Nov 08 21:37:43 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure
Subject: [PATCH 04/31] x86/pci-nommu: handle page-less SG entries
Date: Wed, 12 Aug 2015 09:05:23 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/25899>

Just remove a BUG_ON, the code handles them just fine as-is.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/x86/kernel/pci-nommu.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index da15918..a218059 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -63,7 +63,6 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg,
 	WARN_ON(nents == 0 || sg[0].length == 0);
 
 	for_each_sg(sg, s, nents, i) {
-		BUG_ON(!sg_page(s));
 		s->dma_address = sg_phys(s);
 		if (!check_addr("map_sg", hwdev, s->dma_address, s->length))
 			return 0;
-- 
1.9.1

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From - Thu Nov 08 21:37:43 2018
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Newsgroups: gmane.linux.drivers.video-input-infrastructure,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc
Subject: RFC: prepare for struct scatterlist entries without page backing
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Dan Williams started to look into addressing I/O to and from
Persistent Memory in his series from June:

	http://thread.gmane.org/gmane.linux.kernel.cross-arch/27944

I've started looking into DMA mapping of these SGLs specifically instead
of the map_pfn method in there.  In addition to supporting NVDIMM backed
I/O I also suspect this would be highly useful for media drivers that
go through nasty hoops to be able to DMA from/to their ioremapped regions,
with vb2_dc_get_userptr in drivers/media/v4l2-core/videobuf2-dma-contig.c
being a prime example for the unsafe hacks currently used.

It turns out most DMA mapping implementation can handle SGLs without
page structures with some fairly simple mechanical work.  Most of it
is just about consistently using sg_phys.  For implementations that
need to flush caches we need a new helper that skips these cache
flushes if a entry doesn't have a kernel virtual address.

However the ccio (parisc) and sba_iommu (parisc & ia64) IOMMUs seem
to be operate mostly on virtual addresses.  It's a fairly odd concept
that I don't fully grasp, so I'll need some help with those if we want
to bring this forward.

Additional this series skips ARM entirely for now.  The reason is
that most arm implementations of the .map_sg operation just iterate
over all entries and call ->map_page for it, which means we'd need
to convert those to a ->map_pfn similar to Dan's previous approach.


From - Thu Nov 08 21:37:43 2018
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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 10/31] powerpc/iommu: handle page-less SG entries
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Xref: news.gmane.org gmane.linux.ports.sparc:21380 gmane.linux.kernel:2018369 gmane.linux.kernel.cross-arch:28834 gmane.linux.ports.alpha:3275 gmane.linux.ports.ia64:25674 gmane.linux.kernel.metag:585 gmane.linux.ports.mips.general:49929 gmane.linux.ports.parisc:25901 gmane.linux.ports.ppc64.devel:116726 gmane.linux.drivers.video-input-infrastructure:93924
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For the iommu offset we just need and offset into the page.  Calculate
that using the physical address instead of using the virtual address
so that we don't require a virtual mapping.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/powerpc/kernel/iommu.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index a8e3490..0f52e40 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -457,7 +457,7 @@ int ppc_iommu_map_sg(struct device *dev, struct iommu_table *tbl,
 
 	max_seg_size = dma_get_max_seg_size(dev);
 	for_each_sg(sglist, s, nelems, i) {
-		unsigned long vaddr, npages, entry, slen;
+		unsigned long paddr, npages, entry, slen;
 
 		slen = s->length;
 		/* Sanity check */
@@ -466,22 +466,22 @@ int ppc_iommu_map_sg(struct device *dev, struct iommu_table *tbl,
 			continue;
 		}
 		/* Allocate iommu entries for that segment */
-		vaddr = (unsigned long) sg_virt(s);
-		npages = iommu_num_pages(vaddr, slen, IOMMU_PAGE_SIZE(tbl));
+		paddr = sg_phys(s);
+		npages = iommu_num_pages(paddr, slen, IOMMU_PAGE_SIZE(tbl));
 		align = 0;
 		if (tbl->it_page_shift < PAGE_SHIFT && slen >= PAGE_SIZE &&
-		    (vaddr & ~PAGE_MASK) == 0)
+		    (paddr & ~PAGE_MASK) == 0)
 			align = PAGE_SHIFT - tbl->it_page_shift;
 		entry = iommu_range_alloc(dev, tbl, npages, &handle,
 					  mask >> tbl->it_page_shift, align);
 
-		DBG("  - vaddr: %lx, size: %lx\n", vaddr, slen);
+		DBG("  - paddr: %lx, size: %lx\n", paddr, slen);
 
 		/* Handle failure */
 		if (unlikely(entry == DMA_ERROR_CODE)) {
 			if (printk_ratelimit())
 				dev_info(dev, "iommu_alloc failed, tbl %p "
-					 "vaddr %lx npages %lu\n", tbl, vaddr,
+					 "paddr %lx npages %lu\n", tbl, paddr,
 					 npages);
 			goto failure;
 		}
@@ -496,7 +496,7 @@ int ppc_iommu_map_sg(struct device *dev, struct iommu_table *tbl,
 
 		/* Insert into HW table */
 		build_fail = tbl->it_ops->set(tbl, entry, npages,
-					      vaddr & IOMMU_PAGE_MASK(tbl),
+					      paddr & IOMMU_PAGE_MASK(tbl),
 					      direction, attrs);
 		if(unlikely(build_fail))
 			goto failure;
-- 
1.9.1

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Subject: [PATCH 01/31] scatterlist: add sg_pfn and sg_has_page helpers
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/49930>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 include/linux/scatterlist.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index 9b1ef0c..b1056bf 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -230,6 +230,16 @@ static inline dma_addr_t sg_phys(struct scatterlist *sg)
 	return page_to_phys(sg_page(sg)) + sg->offset;
 }
 
+static inline unsigned long sg_pfn(struct scatterlist *sg)
+{
+	return page_to_pfn(sg_page(sg));
+}
+
+static inline bool sg_has_page(struct scatterlist *sg)
+{
+	return true;
+}
+
 /**
  * sg_virt - Return virtual address of an sg entry
  * @sg:      SG entry
-- 
1.9.1




From - Thu Nov 08 21:37:43 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 05/31] x86/pci-calgary: handle page-less SG entries
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For the iommu offset we just need and offset into the page.  Calculate
that using the physical address instead of using the virtual address
so that we don't require a virtual mapping.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/x86/kernel/pci-calgary_64.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 0497f71..8f1581d 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -368,16 +368,14 @@ static int calgary_map_sg(struct device *dev, struct scatterlist *sg,
 {
 	struct iommu_table *tbl = find_iommu_table(dev);
 	struct scatterlist *s;
-	unsigned long vaddr;
+	unsigned long paddr;
 	unsigned int npages;
 	unsigned long entry;
 	int i;
 
 	for_each_sg(sg, s, nelems, i) {
-		BUG_ON(!sg_page(s));
-
-		vaddr = (unsigned long) sg_virt(s);
-		npages = iommu_num_pages(vaddr, s->length, PAGE_SIZE);
+		paddr = sg_phys(s);
+		npages = iommu_num_pages(paddr, s->length, PAGE_SIZE);
 
 		entry = iommu_range_alloc(dev, tbl, npages);
 		if (entry == DMA_ERROR_CODE) {
@@ -389,7 +387,7 @@ static int calgary_map_sg(struct device *dev, struct scatterlist *sg,
 		s->dma_address = (entry << PAGE_SHIFT) | s->offset;
 
 		/* insert into HW table */
-		tce_build(tbl, entry, npages, vaddr & PAGE_MASK, dir);
+		tce_build(tbl, entry, npages, paddr & PAGE_MASK, dir);
 
 		s->dma_length = s->length;
 	}
-- 
1.9.1


From - Thu Nov 08 21:37:43 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 15/31] sparc32/iommu: handle page-less SG entries
Date: Wed, 12 Aug 2015 09:05:34 +0200
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Pass a PFN to iommu_get_one instad of calculating it locall from a
page structure so that we don't need pages for every address we can
DMA to or from.

Also further restrict the cache flushing as we now have a non-highmem
way of not kernel virtual mapped physical addresses.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/sparc/mm/iommu.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c
index 491511d..3ed53d7 100644
--- a/arch/sparc/mm/iommu.c
+++ b/arch/sparc/mm/iommu.c
@@ -174,7 +174,7 @@ static void iommu_flush_iotlb(iopte_t *iopte, unsigned int niopte)
 	}
 }
 
-static u32 iommu_get_one(struct device *dev, struct page *page, int npages)
+static u32 iommu_get_one(struct device *dev, unsigned long pfn, int npages)
 {
 	struct iommu_struct *iommu = dev->archdata.iommu;
 	int ioptex;
@@ -183,7 +183,7 @@ static u32 iommu_get_one(struct device *dev, struct page *page, int npages)
 	int i;
 
 	/* page color = pfn of page */
-	ioptex = bit_map_string_get(&iommu->usemap, npages, page_to_pfn(page));
+	ioptex = bit_map_string_get(&iommu->usemap, npages, pfn);
 	if (ioptex < 0)
 		panic("iommu out");
 	busa0 = iommu->start + (ioptex << PAGE_SHIFT);
@@ -192,11 +192,11 @@ static u32 iommu_get_one(struct device *dev, struct page *page, int npages)
 	busa = busa0;
 	iopte = iopte0;
 	for (i = 0; i < npages; i++) {
-		iopte_val(*iopte) = MKIOPTE(page_to_pfn(page), IOPERM);
+		iopte_val(*iopte) = MKIOPTE(pfn, IOPERM);
 		iommu_invalidate_page(iommu->regs, busa);
 		busa += PAGE_SIZE;
 		iopte++;
-		page++;
+		pfn++;
 	}
 
 	iommu_flush_iotlb(iopte0, npages);
@@ -214,7 +214,7 @@ static u32 iommu_get_scsi_one(struct device *dev, char *vaddr, unsigned int len)
 	off = (unsigned long)vaddr & ~PAGE_MASK;
 	npages = (off + len + PAGE_SIZE-1) >> PAGE_SHIFT;
 	page = virt_to_page((unsigned long)vaddr & PAGE_MASK);
-	busa = iommu_get_one(dev, page, npages);
+	busa = iommu_get_one(dev, page_to_pfn(page), npages);
 	return busa + off;
 }
 
@@ -243,7 +243,7 @@ static void iommu_get_scsi_sgl_gflush(struct device *dev, struct scatterlist *sg
 	while (sz != 0) {
 		--sz;
 		n = (sg->length + sg->offset + PAGE_SIZE-1) >> PAGE_SHIFT;
-		sg->dma_address = iommu_get_one(dev, sg_page(sg), n) + sg->offset;
+		sg->dma_address = iommu_get_one(dev, sg_pfn(sg), n) + sg->offset;
 		sg->dma_length = sg->length;
 		sg = sg_next(sg);
 	}
@@ -264,7 +264,8 @@ static void iommu_get_scsi_sgl_pflush(struct device *dev, struct scatterlist *sg
 		 * XXX Is this a good assumption?
 		 * XXX What if someone else unmaps it here and races us?
 		 */
-		if ((page = (unsigned long) page_address(sg_page(sg))) != 0) {
+		if (sg_has_page(sg) &&
+		    (page = (unsigned long) page_address(sg_page(sg))) != 0) {
 			for (i = 0; i < n; i++) {
 				if (page != oldpage) {	/* Already flushed? */
 					flush_page_for_dma(page);
@@ -274,7 +275,7 @@ static void iommu_get_scsi_sgl_pflush(struct device *dev, struct scatterlist *sg
 			}
 		}
 
-		sg->dma_address = iommu_get_one(dev, sg_page(sg), n) + sg->offset;
+		sg->dma_address = iommu_get_one(dev, sg_pfn(sg), n) + sg->offset;
 		sg->dma_length = sg->length;
 		sg = sg_next(sg);
 	}
-- 
1.9.1


From - Thu Nov 08 21:37:43 2018
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure
Subject: [PATCH 02/31] scatterlist: use sg_phys()
Date: Wed, 12 Aug 2015 09:05:21 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/49933>

From: Dan Williams <dan.j.williams@intel.com>

Coccinelle cleanup to replace open coded sg to physical address
translations.  This is in preparation for introducing scatterlists that
reference __pfn_t.

// sg_phys.cocci: convert usage page_to_phys(sg_page(sg)) to sg_phys(sg)
// usage: make coccicheck COCCI=sg_phys.cocci MODE=patch

virtual patch

@@
struct scatterlist *sg;
@@

- page_to_phys(sg_page(sg)) + sg->offset
+ sg_phys(sg)

@@
struct scatterlist *sg;
@@

- page_to_phys(sg_page(sg))
+ sg_phys(sg) & PAGE_MASK

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 arch/arm/mm/dma-mapping.c                    | 2 +-
 arch/microblaze/kernel/dma.c                 | 3 +--
 drivers/iommu/intel-iommu.c                  | 4 ++--
 drivers/iommu/iommu.c                        | 2 +-
 drivers/staging/android/ion/ion_chunk_heap.c | 4 ++--
 5 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index cba12f3..3d3d6aa 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -1520,7 +1520,7 @@ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg,
 		return -ENOMEM;
 
 	for (count = 0, s = sg; count < (size >> PAGE_SHIFT); s = sg_next(s)) {
-		phys_addr_t phys = page_to_phys(sg_page(s));
+		phys_addr_t phys = sg_phys(s) & PAGE_MASK;
 		unsigned int len = PAGE_ALIGN(s->offset + s->length);
 
 		if (!is_coherent &&
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index bf4dec2..c89da63 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -61,8 +61,7 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	/* FIXME this part of code is untested */
 	for_each_sg(sgl, sg, nents, i) {
 		sg->dma_address = sg_phys(sg);
-		__dma_sync(page_to_phys(sg_page(sg)) + sg->offset,
-							sg->length, direction);
+		__dma_sync(sg_phys(sg), sg->length, direction);
 	}
 
 	return nents;
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 0649b94..3541d65 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2097,7 +2097,7 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn,
 			sg_res = aligned_nrpages(sg->offset, sg->length);
 			sg->dma_address = ((dma_addr_t)iov_pfn << VTD_PAGE_SHIFT) + sg->offset;
 			sg->dma_length = sg->length;
-			pteval = page_to_phys(sg_page(sg)) | prot;
+			pteval = (sg_phys(sg) & PAGE_MASK) | prot;
 			phys_pfn = pteval >> VTD_PAGE_SHIFT;
 		}
 
@@ -3623,7 +3623,7 @@ static int intel_nontranslate_map_sg(struct device *hddev,
 
 	for_each_sg(sglist, sg, nelems, i) {
 		BUG_ON(!sg_page(sg));
-		sg->dma_address = page_to_phys(sg_page(sg)) + sg->offset;
+		sg->dma_address = sg_phys(sg);
 		sg->dma_length = sg->length;
 	}
 	return nelems;
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index f286090..049df49 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -1408,7 +1408,7 @@ size_t default_iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
 	min_pagesz = 1 << __ffs(domain->ops->pgsize_bitmap);
 
 	for_each_sg(sg, s, nents, i) {
-		phys_addr_t phys = page_to_phys(sg_page(s)) + s->offset;
+		phys_addr_t phys = sg_phys(s);
 
 		/*
 		 * We are mapping on IOMMU page boundaries, so offset within
diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c
index 5474615..f7b6ef9 100644
--- a/drivers/staging/android/ion/ion_chunk_heap.c
+++ b/drivers/staging/android/ion/ion_chunk_heap.c
@@ -81,7 +81,7 @@ static int ion_chunk_heap_allocate(struct ion_heap *heap,
 err:
 	sg = table->sgl;
 	for (i -= 1; i >= 0; i--) {
-		gen_pool_free(chunk_heap->pool, page_to_phys(sg_page(sg)),
+		gen_pool_free(chunk_heap->pool, sg_phys(sg) & PAGE_MASK,
 			      sg->length);
 		sg = sg_next(sg);
 	}
@@ -109,7 +109,7 @@ static void ion_chunk_heap_free(struct ion_buffer *buffer)
 							DMA_BIDIRECTIONAL);
 
 	for_each_sg(table->sgl, sg, table->nents, i) {
-		gen_pool_free(chunk_heap->pool, page_to_phys(sg_page(sg)),
+		gen_pool_free(chunk_heap->pool, sg_phys(sg) & PAGE_MASK,
 			      sg->length);
 	}
 	chunk_heap->allocated -= allocated_size;
-- 
1.9.1




From - Thu Nov 08 21:37:44 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure
Subject: [PATCH 17/31] ia64/sba_iommu: remove sba_sg_address
Date: Wed, 12 Aug 2015 09:05:36 +0200
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/25679>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/ia64/hp/common/sba_iommu.c | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 344387a..9e5aa8e 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -248,8 +248,6 @@ static int reserve_sba_gart = 1;
 static SBA_INLINE void sba_mark_invalid(struct ioc *, dma_addr_t, size_t);
 static SBA_INLINE void sba_free_range(struct ioc *, dma_addr_t, size_t);
 
-#define sba_sg_address(sg)	sg_virt((sg))
-
 #ifdef FULL_VALID_PDIR
 static u64 prefetch_spill_page;
 #endif
@@ -397,7 +395,7 @@ sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents)
 	while (nents-- > 0) {
 		printk(KERN_DEBUG " %d : DMA %08lx/%05x CPU %p\n", nents,
 		       startsg->dma_address, startsg->dma_length,
-		       sba_sg_address(startsg));
+		       sg_virt(startsg));
 		startsg = sg_next(startsg);
 	}
 }
@@ -409,7 +407,7 @@ sba_check_sg( struct ioc *ioc, struct scatterlist *startsg, int nents)
 	int the_nents = nents;
 
 	while (the_nents-- > 0) {
-		if (sba_sg_address(the_sg) == 0x0UL)
+		if (sg_virt(the_sg) == 0x0UL)
 			sba_dump_sg(NULL, startsg, nents);
 		the_sg = sg_next(the_sg);
 	}
@@ -1243,11 +1241,11 @@ sba_fill_pdir(
 		if (dump_run_sg)
 			printk(" %2d : %08lx/%05x %p\n",
 				nents, startsg->dma_address, cnt,
-				sba_sg_address(startsg));
+				sg_virt(startsg));
 #else
 		DBG_RUN_SG(" %d : %08lx/%05x %p\n",
 				nents, startsg->dma_address, cnt,
-				sba_sg_address(startsg));
+				sg_virt(startsg));
 #endif
 		/*
 		** Look for the start of a new DMA stream
@@ -1267,7 +1265,7 @@ sba_fill_pdir(
 		** Look for a VCONTIG chunk
 		*/
 		if (cnt) {
-			unsigned long vaddr = (unsigned long) sba_sg_address(startsg);
+			unsigned long vaddr = (unsigned long) sg_virt(startsg);
 			ASSERT(pdirp);
 
 			/* Since multiple Vcontig blocks could make up
@@ -1335,7 +1333,7 @@ sba_coalesce_chunks(struct ioc *ioc, struct device *dev,
 	int idx;
 
 	while (nents > 0) {
-		unsigned long vaddr = (unsigned long) sba_sg_address(startsg);
+		unsigned long vaddr = (unsigned long) sg_virt(startsg);
 
 		/*
 		** Prepare for first/next DMA stream
@@ -1380,7 +1378,7 @@ sba_coalesce_chunks(struct ioc *ioc, struct device *dev,
 			**
 			** append the next transaction?
 			*/
-			vaddr = (unsigned long) sba_sg_address(startsg);
+			vaddr = (unsigned long) sg_virt(startsg);
 			if  (vcontig_end == vaddr)
 			{
 				vcontig_len += startsg->length;
@@ -1479,7 +1477,7 @@ static int sba_map_sg_attrs(struct device *dev, struct scatterlist *sglist,
 	if (likely((ioc->dma_mask & ~to_pci_dev(dev)->dma_mask) == 0)) {
 		for_each_sg(sglist, sg, nents, filled) {
 			sg->dma_length = sg->length;
-			sg->dma_address = virt_to_phys(sba_sg_address(sg));
+			sg->dma_address = virt_to_phys(sg_virt(sg));
 		}
 		return filled;
 	}
@@ -1487,7 +1485,7 @@ static int sba_map_sg_attrs(struct device *dev, struct scatterlist *sglist,
 	/* Fast path single entry scatterlists. */
 	if (nents == 1) {
 		sglist->dma_length = sglist->length;
-		sglist->dma_address = sba_map_single_attrs(dev, sba_sg_address(sglist), sglist->length, dir, attrs);
+		sglist->dma_address = sba_map_single_attrs(dev, sg_virt(sglist), sglist->length, dir, attrs);
 		return 1;
 	}
 
@@ -1563,7 +1561,7 @@ static void sba_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist,
 #endif
 
 	DBG_RUN_SG("%s() START %d entries,  %p,%x\n",
-		   __func__, nents, sba_sg_address(sglist), sglist->length);
+		   __func__, nents, sg_virt(sglist), sglist->length);
 
 #ifdef ASSERT_PDIR_SANITY
 	ioc = GET_IOC(dev);
-- 
1.9.1

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From - Thu Nov 08 21:37:44 2018
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Subject: [PATCH 19/31] arc: handle page-less SG entries
Date: Wed, 12 Aug 2015 09:05:38 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2018375>

Make all cache invalidation conditional on sg_has_page() and use
sg_phys to get the physical address directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arc/include/asm/dma-mapping.h | 26 +++++++++++++++++++-------
 1 file changed, 19 insertions(+), 7 deletions(-)

diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index 2d28ba9..42eb526 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -108,9 +108,13 @@ dma_map_sg(struct device *dev, struct scatterlist *sg,
 	struct scatterlist *s;
 	int i;
 
-	for_each_sg(sg, s, nents, i)
-		s->dma_address = dma_map_page(dev, sg_page(s), s->offset,
-					       s->length, dir);
+	for_each_sg(sg, s, nents, i) {
+		if (sg_has_page(s)) {
+			_dma_cache_sync((unsigned long)sg_virt(s), s->length,
+					dir);
+		}
+		s->dma_address = sg_phys(s);
+	}
 
 	return nents;
 }
@@ -163,8 +167,12 @@ dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nelems,
 	int i;
 	struct scatterlist *sg;
 
-	for_each_sg(sglist, sg, nelems, i)
-		_dma_cache_sync((unsigned int)sg_virt(sg), sg->length, dir);
+	for_each_sg(sglist, sg, nelems, i) {
+		if (sg_has_page(sg)) {
+			_dma_cache_sync((unsigned int)sg_virt(sg), sg->length,
+					dir);
+		}
+	}
 }
 
 static inline void
@@ -174,8 +182,12 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
 	int i;
 	struct scatterlist *sg;
 
-	for_each_sg(sglist, sg, nelems, i)
-		_dma_cache_sync((unsigned int)sg_virt(sg), sg->length, dir);
+	for_each_sg(sglist, sg, nelems, i) {
+		if (sg_has_page(sg)) {
+			_dma_cache_sync((unsigned int)sg_virt(sg), sg->length,
+				dir);
+		}
+	}
 }
 
 static inline int dma_supported(struct device *dev, u64 dma_mask)
-- 
1.9.1


From - Thu Nov 08 21:37:44 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure
Subject: [PATCH 23/31] sh: handle page-less SG entries
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Make all cache invalidation conditional on sg_has_page().

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sh/kernel/dma-nommu.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 5b0bfcd..3b64dc7 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -33,9 +33,8 @@ static int nommu_map_sg(struct device *dev, struct scatterlist *sg,
 	WARN_ON(nents == 0 || sg[0].length == 0);
 
 	for_each_sg(sg, s, nents, i) {
-		BUG_ON(!sg_page(s));

From - Thu Nov 08 21:37:44 2018
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Subject: [PATCH 21/31] blackfin: handle page-less SG entries
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/21388>

Switch from sg_virt to sg_phys as blackfin like all nommu architectures
has a 1:1 virtual to physical mapping.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/blackfin/kernel/dma-mapping.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c
index df437e5..e2c4d1a 100644
--- a/arch/blackfin/kernel/dma-mapping.c
+++ b/arch/blackfin/kernel/dma-mapping.c
@@ -120,7 +120,7 @@ dma_map_sg(struct device *dev, struct scatterlist *sg_list, int nents,
 	int i;
 
 	for_each_sg(sg_list, sg, nents, i) {
-		sg->dma_address = (dma_addr_t) sg_virt(sg);
+		sg->dma_address = sg_phys(sg);
 		__dma_sync(sg_dma_address(sg), sg_dma_len(sg), direction);
 	}
 
@@ -135,7 +135,7 @@ void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg_list,
 	int i;
 
 	for_each_sg(sg_list, sg, nelems, i) {
-		sg->dma_address = (dma_addr_t) sg_virt(sg);
+		sg->dma_address = sg_phys(sg);
 		__dma_sync(sg_dma_address(sg), sg_dma_len(sg), direction);
 	}
 }
-- 
1.9.1

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From - Thu Nov 08 21:37:44 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 03/31] dma-debug: handle page-less SG entries
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/49938>

Use sg_pfn to get a the PFN and skip checks that require a kernel
virtual address.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/dma-debug.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index dace71f..a215a80 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -1368,7 +1368,7 @@ void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
 
 		entry->type           = dma_debug_sg;
 		entry->dev            = dev;
-		entry->pfn	      = page_to_pfn(sg_page(s));
+		entry->pfn	      = sg_pfn(s);
 		entry->offset	      = s->offset,
 		entry->size           = sg_dma_len(s);
 		entry->dev_addr       = sg_dma_address(s);
@@ -1376,7 +1376,7 @@ void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
 		entry->sg_call_ents   = nents;
 		entry->sg_mapped_ents = mapped_ents;
 
-		if (!PageHighMem(sg_page(s))) {
+		if (sg_has_page(s) && !PageHighMem(sg_page(s))) {
 			check_for_stack(dev, sg_virt(s));
 			check_for_illegal_area(dev, sg_virt(s), sg_dma_len(s));
 		}
@@ -1419,7 +1419,7 @@ void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 		struct dma_debug_entry ref = {
 			.type           = dma_debug_sg,
 			.dev            = dev,
-			.pfn		= page_to_pfn(sg_page(s)),
+			.pfn		= sg_pfn(s),
 			.offset		= s->offset,
 			.dev_addr       = sg_dma_address(s),
 			.size           = sg_dma_len(s),
@@ -1580,7 +1580,7 @@ void debug_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
 		struct dma_debug_entry ref = {
 			.type           = dma_debug_sg,
 			.dev            = dev,
-			.pfn		= page_to_pfn(sg_page(s)),
+			.pfn		= sg_pfn(s),
 			.offset		= s->offset,
 			.dev_addr       = sg_dma_address(s),
 			.size           = sg_dma_len(s),
@@ -1613,7 +1613,7 @@ void debug_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
 		struct dma_debug_entry ref = {
 			.type           = dma_debug_sg,
 			.dev            = dev,
-			.pfn		= page_to_pfn(sg_page(s)),
+			.pfn		= sg_pfn(s),
 			.offset		= s->offset,
 			.dev_addr       = sg_dma_address(s),
 			.size           = sg_dma_len(s),
-- 
1.9.1




From - Thu Nov 08 21:37:44 2018
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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 29/31] parisc: handle page-less SG entries
Date: Wed, 12 Aug 2015 09:05:48 +0200
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2018379>

Make all cache invalidation conditional on sg_has_page() and use
sg_phys to get the physical address directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/parisc/kernel/pci-dma.c | 29 ++++++++++++++++++-----------
 1 file changed, 18 insertions(+), 11 deletions(-)

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index b9402c9..6cad0e0 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -483,11 +483,13 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int n
 	BUG_ON(direction == DMA_NONE);
 
 	for_each_sg(sglist, sg, nents, i) {
-		unsigned long vaddr = (unsigned long)sg_virt(sg);
-
-		sg_dma_address(sg) = (dma_addr_t) virt_to_phys(vaddr);
+		sg_dma_address(sg) = sg_phys(sg);
 		sg_dma_len(sg) = sg->length;
-		flush_kernel_dcache_range(vaddr, sg->length);
+
+		if (sg_has_page(sg)) {
+			flush_kernel_dcache_range((unsigned long)sg_virt(sg),
+						  sg->length);
+		}
 	}
 	return nents;
 }
@@ -504,9 +506,10 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, in
 
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
-	return;
+	for_each_sg(sglist, sg, nents, i) {
+		if (sg_has_page(sg))
+			flush_kernel_vmap_range(sg_virt(sg), sg->length);
+	}
 }
 
 static void pa11_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
@@ -530,8 +533,10 @@ static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sgl
 
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
+	for_each_sg(sglist, sg, nents, i) {
+		if (sg_has_page(sg))
+			flush_kernel_vmap_range(sg_virt(sg), sg->length);
+	}
 }
 
 static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
@@ -541,8 +546,10 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
 
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
+	for_each_sg(sglist, sg, nents, i) {
+		if (sg_has_page(sg))
+			flush_kernel_vmap_range(sg_virt(sg), sg->length);
+	}
 }
 
 struct hppa_dma_ops pcxl_dma_ops = {
-- 
1.9.1


From - Thu Nov 08 21:37:44 2018
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Subject: [PATCH 31/31] dma-mapping-common: skip kmemleak checks for page-less SG entries
Date: Wed, 12 Aug 2015 09:05:50 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/21391>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 include/asm-generic/dma-mapping-common.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/asm-generic/dma-mapping-common.h b/include/asm-generic/dma-mapping-common.h
index 940d5ec..afc3eaf 100644
--- a/include/asm-generic/dma-mapping-common.h
+++ b/include/asm-generic/dma-mapping-common.h
@@ -51,8 +51,10 @@ static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
 	int i, ents;
 	struct scatterlist *s;
 
-	for_each_sg(sg, s, nents, i)
-		kmemcheck_mark_initialized(sg_virt(s), s->length);
+	for_each_sg(sg, s, nents, i) {
+		if (sg_has_page(s))
+			kmemcheck_mark_initialized(sg_virt(s), s->length);
+	}
 	BUG_ON(!valid_dma_direction(dir));
 	ents = ops->map_sg(dev, sg, nents, dir, attrs);
 	BUG_ON(ents < 0);
-- 
1.9.1

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From - Thu Nov 08 21:37:44 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure
Subject: [PATCH 27/31] mips: handle page-less SG entries
Date: Wed, 12 Aug 2015 09:05:46 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2018381>

Make all cache invalidation conditional on sg_has_page() and use
sg_phys to get the physical address directly.  To do this consolidate
the two platform callouts using pages and virtual addresses into a
single one using a physical address.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/mips/bmips/dma.c                              |  9 ++------
 arch/mips/include/asm/mach-ath25/dma-coherence.h   | 10 ++-------
 arch/mips/include/asm/mach-bmips/dma-coherence.h   |  4 ++--
 .../include/asm/mach-cavium-octeon/dma-coherence.h | 11 ++--------
 arch/mips/include/asm/mach-generic/dma-coherence.h | 12 +++--------
 arch/mips/include/asm/mach-ip27/dma-coherence.h    | 16 +++-----------
 arch/mips/include/asm/mach-ip32/dma-coherence.h    | 19 +++-------------
 arch/mips/include/asm/mach-jazz/dma-coherence.h    | 11 +++-------
 .../include/asm/mach-loongson64/dma-coherence.h    | 16 +++-----------
 arch/mips/mm/dma-default.c                         | 25 ++++++++++++----------
 10 files changed, 37 insertions(+), 96 deletions(-)

diff --git a/arch/mips/bmips/dma.c b/arch/mips/bmips/dma.c
index 04790f4..13fc891 100644
--- a/arch/mips/bmips/dma.c
+++ b/arch/mips/bmips/dma.c
@@ -52,14 +52,9 @@ static dma_addr_t bmips_phys_to_dma(struct device *dev, phys_addr_t pa)
 	return pa;
 }
 
-dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size)
+dma_addr_t plat_map_dma_mem(struct device *dev, phys_addr_t phys, size_t size)
 {
-	return bmips_phys_to_dma(dev, virt_to_phys(addr));
-}
-
-dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
-{
-	return bmips_phys_to_dma(dev, page_to_phys(page));
+	return bmips_phys_to_dma(dev, phys);
 }
 
 unsigned long plat_dma_addr_to_phys(struct device *dev, dma_addr_t dma_addr)
diff --git a/arch/mips/include/asm/mach-ath25/dma-coherence.h b/arch/mips/include/asm/mach-ath25/dma-coherence.h
index d5defdd..4330de6 100644
--- a/arch/mips/include/asm/mach-ath25/dma-coherence.h
+++ b/arch/mips/include/asm/mach-ath25/dma-coherence.h
@@ -31,15 +31,9 @@ static inline dma_addr_t ath25_dev_offset(struct device *dev)
 }
 
 static inline dma_addr_t
-plat_map_dma_mem(struct device *dev, void *addr, size_t size)
+plat_map_dma_mem(struct device *dev, phys_addr_t phys, size_t size)
 {
-	return virt_to_phys(addr) + ath25_dev_offset(dev);
-}
-
-static inline dma_addr_t
-plat_map_dma_mem_page(struct device *dev, struct page *page)
-{
-	return page_to_phys(page) + ath25_dev_offset(dev);
+	return phys + ath25_dev_offset(dev);
 }
 
 static inline unsigned long
diff --git a/arch/mips/include/asm/mach-bmips/dma-coherence.h b/arch/mips/include/asm/mach-bmips/dma-coherence.h
index d29781f..1b9a7f4 100644
--- a/arch/mips/include/asm/mach-bmips/dma-coherence.h
+++ b/arch/mips/include/asm/mach-bmips/dma-coherence.h
@@ -21,8 +21,8 @@
 
 struct device;
 
-extern dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size);
-extern dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page);
+extern dma_addr_t plat_map_dma_mem(struct device *dev, phys_addr_t phys,
+		size_t size);
 extern unsigned long plat_dma_addr_to_phys(struct device *dev,
 	dma_addr_t dma_addr);
 
diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
index 460042e..d0988c7 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
@@ -19,15 +19,8 @@ struct device;
 
 extern void octeon_pci_dma_init(void);
 
-static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
-	size_t size)
-{
-	BUG();
-	return 0;
-}
-
-static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
-	struct page *page)
+static inline dma_addr_t plat_map_dma_mem(struct device *dev, phys_addr_t phys,
+		size_t size)
 {
 	BUG();
 	return 0;
diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h
index 0f8a354..2dfb133 100644
--- a/arch/mips/include/asm/mach-generic/dma-coherence.h
+++ b/arch/mips/include/asm/mach-generic/dma-coherence.h
@@ -11,16 +11,10 @@
 
 struct device;
 
-static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
-	size_t size)
+static inline dma_addr_t plat_map_dma_mem(struct device *dev, phys_addr_t phys,
+		size_t size)
 {
-	return virt_to_phys(addr);
-}
-
-static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
-	struct page *page)
-{
-	return page_to_phys(page);
+	return phys;
 }
 
 static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
diff --git a/arch/mips/include/asm/mach-ip27/dma-coherence.h b/arch/mips/include/asm/mach-ip27/dma-coherence.h
index 1daa644..2578b9d 100644
--- a/arch/mips/include/asm/mach-ip27/dma-coherence.h
+++ b/arch/mips/include/asm/mach-ip27/dma-coherence.h
@@ -18,20 +18,10 @@
 
 struct device;
 
-static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
-	size_t size)
+static inline dma_addr_t plat_map_dma_mem(struct device *dev, phys_addr_t phys,
+		size_t size)
 {
-	dma_addr_t pa = dev_to_baddr(dev, virt_to_phys(addr));
-
-	return pa;
-}
-
-static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
-	struct page *page)
-{
-	dma_addr_t pa = dev_to_baddr(dev, page_to_phys(page));
-
-	return pa;
+	return dev_to_baddr(dev, phys);
 }
 
 static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
diff --git a/arch/mips/include/asm/mach-ip32/dma-coherence.h b/arch/mips/include/asm/mach-ip32/dma-coherence.h
index 0a0b0e2..a5e8d75 100644
--- a/arch/mips/include/asm/mach-ip32/dma-coherence.h
+++ b/arch/mips/include/asm/mach-ip32/dma-coherence.h
@@ -26,23 +26,10 @@ struct device;
 
 #define RAM_OFFSET_MASK 0x3fffffffUL
 
-static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
-	size_t size)
+static inline dma_addr_t plat_map_dma_mem(struct device *dev, phys_addr_t phys,
+		size_t size)
 {
-	dma_addr_t pa = virt_to_phys(addr) & RAM_OFFSET_MASK;
-
-	if (dev == NULL)
-		pa += CRIME_HI_MEM_BASE;
-
-	return pa;
-}
-
-static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
-	struct page *page)
-{
-	dma_addr_t pa;
-
-	pa = page_to_phys(page) & RAM_OFFSET_MASK;
+	dma_addr_t pa = phys & RAM_OFFSET_MASK;
 
 	if (dev == NULL)
 		pa += CRIME_HI_MEM_BASE;
diff --git a/arch/mips/include/asm/mach-jazz/dma-coherence.h b/arch/mips/include/asm/mach-jazz/dma-coherence.h
index dc347c2..7739782 100644
--- a/arch/mips/include/asm/mach-jazz/dma-coherence.h
+++ b/arch/mips/include/asm/mach-jazz/dma-coherence.h
@@ -12,15 +12,10 @@
 
 struct device;
 
-static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size)
+static inline dma_addr_t plat_map_dma_mem(struct device *dev, phys_addr_t phys,
+		size_t size)
 {
-	return vdma_alloc(virt_to_phys(addr), size);
-}
-
-static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
-	struct page *page)
-{
-	return vdma_alloc(page_to_phys(page), PAGE_SIZE);
+	return vdma_alloc(phys, size);
 }
 
 static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
diff --git a/arch/mips/include/asm/mach-loongson64/dma-coherence.h b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
index 1602a9e..a75d4ba 100644
--- a/arch/mips/include/asm/mach-loongson64/dma-coherence.h
+++ b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
@@ -19,23 +19,13 @@ struct device;
 
 extern dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
 extern phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
-static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
+static inline dma_addr_t plat_map_dma_mem(struct device *dev, phys_addr_t phys,
 					  size_t size)
 {
 #ifdef CONFIG_CPU_LOONGSON3
-	return phys_to_dma(dev, virt_to_phys(addr));
+	return phys_to_dma(dev, phys);
 #else
-	return virt_to_phys(addr) | 0x80000000;
-#endif
-}
-
-static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
-					       struct page *page)
-{
-#ifdef CONFIG_CPU_LOONGSON3
-	return phys_to_dma(dev, page_to_phys(page));
-#else
-	return page_to_phys(page) | 0x80000000;
+	return phys | 0x80000000;
 #endif
 }
 
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index eeaf024..409fdc8 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -123,7 +123,7 @@ void *dma_alloc_noncoherent(struct device *dev, size_t size,
 
 	if (ret != NULL) {
 		memset(ret, 0, size);
-		*dma_handle = plat_map_dma_mem(dev, ret, size);
+		*dma_handle = plat_map_dma_mem(dev, virt_to_phys(ret), size);
 	}
 
 	return ret;
@@ -153,7 +153,7 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
 
 	ret = page_address(page);
 	memset(ret, 0, size);
-	*dma_handle = plat_map_dma_mem(dev, ret, size);
+	*dma_handle = plat_map_dma_mem(dev, virt_to_phys(ret), size);
 	if (!plat_device_is_coherent(dev)) {
 		dma_cache_wback_inv((unsigned long) ret, size);
 		if (!hw_coherentio)
@@ -269,14 +269,13 @@ static int mips_dma_map_sg(struct device *dev, struct scatterlist *sglist,
 	struct scatterlist *sg;
 
 	for_each_sg(sglist, sg, nents, i) {
-		if (!plat_device_is_coherent(dev))
+		if (sg_has_page(sg) && !plat_device_is_coherent(dev))
 			__dma_sync(sg_page(sg), sg->offset, sg->length,
 				   direction);
 #ifdef CONFIG_NEED_SG_DMA_LENGTH
 		sg->dma_length = sg->length;
 #endif
-		sg->dma_address = plat_map_dma_mem_page(dev, sg_page(sg)) +
-				  sg->offset;
+		sg->dma_address = plat_map_dma_mem(dev, sg_phys(sg), PAGE_SIZE);
 	}
 
 	return nents;
@@ -289,7 +288,7 @@ static dma_addr_t mips_dma_map_page(struct device *dev, struct page *page,
 	if (!plat_device_is_coherent(dev))
 		__dma_sync(page, offset, size, direction);
 
-	return plat_map_dma_mem_page(dev, page) + offset;
+	return plat_map_dma_mem(dev, page_to_phys(page), PAGE_SIZE) + offset;
 }
 
 static void mips_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
@@ -300,7 +299,7 @@ static void mips_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 	struct scatterlist *sg;
 
 	for_each_sg(sglist, sg, nhwentries, i) {
-		if (!plat_device_is_coherent(dev) &&
+		if (sg_has_page(sg) && !plat_device_is_coherent(dev) &&
 		    direction != DMA_TO_DEVICE)
 			__dma_sync(sg_page(sg), sg->offset, sg->length,
 				   direction);
@@ -334,8 +333,10 @@ static void mips_dma_sync_sg_for_cpu(struct device *dev,
 
 	if (cpu_needs_post_dma_flush(dev)) {
 		for_each_sg(sglist, sg, nelems, i) {
-			__dma_sync(sg_page(sg), sg->offset, sg->length,
-				   direction);
+			if (sg_has_page(sg)) {
+				__dma_sync(sg_page(sg), sg->offset, sg->length,
+					   direction);
+			}
 		}
 	}
 	plat_post_dma_flush(dev);
@@ -350,8 +351,10 @@ static void mips_dma_sync_sg_for_device(struct device *dev,
 
 	if (!plat_device_is_coherent(dev)) {
 		for_each_sg(sglist, sg, nelems, i) {
-			__dma_sync(sg_page(sg), sg->offset, sg->length,
-				   direction);
+			if (sg_has_page(sg)) {
+				__dma_sync(sg_page(sg), sg->offset, sg->length,
+					   direction);
+			}
 		}
 	}
 }
-- 
1.9.1


From - Thu Nov 08 21:37:44 2018
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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 25/31] frv: handle page-less SG entries
Date: Wed, 12 Aug 2015 09:05:44 +0200
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Approved: news@gmane.org
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Only call kmap_atomic_primary when the SG entry is mapped into
kernel virtual space.

XXX: the code already looks odd due to the lack of pairing between
kmap_atomic_primary and kunmap_atomic_primary.  Does it work either
before or after this patch?

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/frv/mb93090-mb00/pci-dma.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c
index 4d1f01d..77b3a1c 100644
--- a/arch/frv/mb93090-mb00/pci-dma.c
+++ b/arch/frv/mb93090-mb00/pci-dma.c
@@ -63,6 +63,9 @@ int dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	dampr2 = __get_DAMPR(2);
 
 	for_each_sg(sglist, sg, nents, i) {
+		if (!sg_has_page(sg))
+			continue;
+
 		vaddr = kmap_atomic_primary(sg_page(sg));
 
 		frv_dcache_writeback((unsigned long) vaddr,
-- 
1.9.1


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Subject: [PATCH 30/31] intel-iommu: handle page-less SG entries
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Just remove a BUG_ON, the code handles them just fine as-is.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/iommu/intel-iommu.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 3541d65..ae10573 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -3622,7 +3622,6 @@ static int intel_nontranslate_map_sg(struct device *hddev,
 	struct scatterlist *sg;
 
 	for_each_sg(sglist, sg, nelems, i) {
-		BUG_ON(!sg_page(sg));
 		sg->dma_address = sg_phys(sg);
 		sg->dma_length = sg->length;
 	}
-- 
1.9.1


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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 06/31] alpha/pci-noop: handle page-less SG entries
Date: Wed, 12 Aug 2015 09:05:25 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/49944>

Use sg_phys() instead of virt_to_phys(sg_virt(sg)) so that we don't
require a kernel virtual address.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/alpha/kernel/pci-noop.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index df24b76..7319151 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -145,11 +145,7 @@ static int alpha_noop_map_sg(struct device *dev, struct scatterlist *sgl, int ne
 	struct scatterlist *sg;
 
 	for_each_sg(sgl, sg, nents, i) {
-		void *va;
-
-		BUG_ON(!sg_page(sg));
-		va = sg_virt(sg);
-		sg_dma_address(sg) = (dma_addr_t)virt_to_phys(va);
+		sg_dma_address(sg) = (dma_addr_t)sg_phys(sg);
 		sg_dma_len(sg) = sg->length;
 	}
 
-- 
1.9.1




From - Thu Nov 08 21:37:44 2018
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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 07/31] alpha/pci_iommu: handle page-less SG entries
Date: Wed, 12 Aug 2015 09:05:26 +0200
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To: torvalds@linux-foundation.org, axboe@kernel.dk
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/49945>

Use sg_phys() instead of virt_to_phys(sg_virt(sg)) so that we don't
require a kernel virtual address, and switch a few debug printfs to
print physical instead of virtual addresses.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/alpha/kernel/pci_iommu.c | 36 +++++++++++++++---------------------
 1 file changed, 15 insertions(+), 21 deletions(-)

diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index eddee77..5d46b49 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -248,20 +248,17 @@ static int pci_dac_dma_supported(struct pci_dev *dev, u64 mask)
    until either pci_unmap_single or pci_dma_sync_single is performed.  */
 
 static dma_addr_t
-pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size,
+pci_map_single_1(struct pci_dev *pdev, unsigned long paddr, size_t size,
 		 int dac_allowed)
 {
 	struct pci_controller *hose = pdev ? pdev->sysdata : pci_isa_hose;
 	dma_addr_t max_dma = pdev ? pdev->dma_mask : ISA_DMA_MASK;
 	struct pci_iommu_arena *arena;
 	long npages, dma_ofs, i;
-	unsigned long paddr;
 	dma_addr_t ret;
 	unsigned int align = 0;
 	struct device *dev = pdev ? &pdev->dev : NULL;
 
-	paddr = __pa(cpu_addr);
-
 #if !DEBUG_NODIRECT
 	/* First check to see if we can use the direct map window.  */
 	if (paddr + size + __direct_map_base - 1 <= max_dma
@@ -269,7 +266,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size,
 		ret = paddr + __direct_map_base;
 
 		DBGA2("pci_map_single: [%p,%zx] -> direct %llx from %pf\n",
-		      cpu_addr, size, ret, __builtin_return_address(0));
+		      paddr, size, ret, __builtin_return_address(0));
 
 		return ret;
 	}
@@ -280,7 +277,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size,
 		ret = paddr + alpha_mv.pci_dac_offset;
 
 		DBGA2("pci_map_single: [%p,%zx] -> DAC %llx from %pf\n",
-		      cpu_addr, size, ret, __builtin_return_address(0));
+		      paddr, size, ret, __builtin_return_address(0));
 
 		return ret;
 	}
@@ -309,15 +306,15 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size,
 		return 0;
 	}
 
+	offset = paddr & ~PAGE_MASK;
 	paddr &= PAGE_MASK;
 	for (i = 0; i < npages; ++i, paddr += PAGE_SIZE)
 		arena->ptes[i + dma_ofs] = mk_iommu_pte(paddr);
 
-	ret = arena->dma_base + dma_ofs * PAGE_SIZE;
-	ret += (unsigned long)cpu_addr & ~PAGE_MASK;
+	ret = arena->dma_base + dma_ofs * PAGE_SIZE + offset;
 
 	DBGA2("pci_map_single: [%p,%zx] np %ld -> sg %llx from %pf\n",
-	      cpu_addr, size, npages, ret, __builtin_return_address(0));
+	      paddr, size, npages, ret, __builtin_return_address(0));
 
 	return ret;
 }
@@ -357,7 +354,7 @@ static dma_addr_t alpha_pci_map_page(struct device *dev, struct page *page,
 	BUG_ON(dir == PCI_DMA_NONE);
 
 	dac_allowed = pdev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0; 
-	return pci_map_single_1(pdev, (char *)page_address(page) + offset, 
+	return pci_map_single_1(pdev, page_to_phys(page) + offset,
 				size, dac_allowed);
 }
 
@@ -453,7 +450,7 @@ try_again:
 	}
 	memset(cpu_addr, 0, size);
 
-	*dma_addrp = pci_map_single_1(pdev, cpu_addr, size, 0);
+	*dma_addrp = pci_map_single_1(pdev, __pa(cpu_addr), size, 0);
 	if (*dma_addrp == 0) {
 		free_pages((unsigned long)cpu_addr, order);
 		if (alpha_mv.mv_pci_tbi || (gfp & GFP_DMA))
@@ -497,9 +494,6 @@ static void alpha_pci_free_coherent(struct device *dev, size_t size,
    Write dma_length of each leader with the combined lengths of
    the mergable followers.  */
 
-#define SG_ENT_VIRT_ADDRESS(SG) (sg_virt((SG)))
-#define SG_ENT_PHYS_ADDRESS(SG) __pa(SG_ENT_VIRT_ADDRESS(SG))
-
 static void
 sg_classify(struct device *dev, struct scatterlist *sg, struct scatterlist *end,
 	    int virt_ok)
@@ -512,13 +506,13 @@ sg_classify(struct device *dev, struct scatterlist *sg, struct scatterlist *end,
 	leader = sg;
 	leader_flag = 0;
 	leader_length = leader->length;
-	next_paddr = SG_ENT_PHYS_ADDRESS(leader) + leader_length;
+	next_paddr = sg_phys(leader) + leader_length;
 
 	/* we will not marge sg without device. */
 	max_seg_size = dev ? dma_get_max_seg_size(dev) : 0;
 	for (++sg; sg < end; ++sg) {
 		unsigned long addr, len;
-		addr = SG_ENT_PHYS_ADDRESS(sg);
+		addr = sg_phys(sg);
 		len = sg->length;
 
 		if (leader_length + len > max_seg_size)
@@ -555,7 +549,7 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end,
 	struct scatterlist *out, struct pci_iommu_arena *arena,
 	dma_addr_t max_dma, int dac_allowed)
 {
-	unsigned long paddr = SG_ENT_PHYS_ADDRESS(leader);
+	unsigned long paddr = sg_phys(leader);
 	long size = leader->dma_length;
 	struct scatterlist *sg;
 	unsigned long *ptes;
@@ -621,7 +615,7 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end,
 #endif
 
 		size = sg->length;
-		paddr = SG_ENT_PHYS_ADDRESS(sg);
+		paddr = sg_phys(sg);
 
 		while (sg+1 < end && (int) sg[1].dma_address == -1) {
 			size += sg[1].length;
@@ -636,11 +630,11 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end,
 
 #if DEBUG_ALLOC > 0
 		DBGA("    (%ld) [%p,%x] np %ld\n",
-		     last_sg - leader, SG_ENT_VIRT_ADDRESS(last_sg),
+		     last_sg - leader, sg_phys(last_sg),
 		     last_sg->length, npages);
 		while (++last_sg <= sg) {
 			DBGA("        (%ld) [%p,%x] cont\n",
-			     last_sg - leader, SG_ENT_VIRT_ADDRESS(last_sg),
+			     last_sg - leader, sg_phys(last_sg),
 			     last_sg->length);
 		}
 #endif
@@ -668,7 +662,7 @@ static int alpha_pci_map_sg(struct device *dev, struct scatterlist *sg,
 	if (nents == 1) {
 		sg->dma_length = sg->length;
 		sg->dma_address
-		  = pci_map_single_1(pdev, SG_ENT_VIRT_ADDRESS(sg),
+		  = pci_map_single_1(pdev, sg_phys(sg),
 				     sg->length, dac_allowed);
 		return sg->dma_address != 0;
 	}
-- 
1.9.1




From - Thu Nov 08 21:37:44 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.drivers.video-input-infrastructure
Subject: [PATCH 28/31] powerpc: handle page-less SG entries
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Make all cache invalidation conditional on sg_has_page().

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/powerpc/kernel/dma.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 35e4dcc..cece40b 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -135,7 +135,10 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	for_each_sg(sgl, sg, nents, i) {
 		sg->dma_address = sg_phys(sg) + get_dma_offset(dev);
 		sg->dma_length = sg->length;
-		__dma_sync_page(sg_page(sg), sg->offset, sg->length, direction);
+		if (sg_has_page(sg)) {
+			__dma_sync_page(sg_page(sg), sg->offset, sg->length,
+					direction);
+		}
 	}
 
 	return nents;
@@ -200,7 +203,10 @@ static inline void dma_direct_sync_sg(struct device *dev,
 	int i;
 
 	for_each_sg(sgl, sg, nents, i)
-		__dma_sync_page(sg_page(sg), sg->offset, sg->length, direction);
+		if (sg_has_page(sg)) {
+			__dma_sync_page(sg_page(sg), sg->offset, sg->length,
+					direction);
+		}
 }
 
 static inline void dma_direct_sync_single(struct device *dev,
-- 
1.9.1

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From - Thu Nov 08 21:37:44 2018
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Subject: [PATCH 08/31] c6x: handle page-less SG entries
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Use sg_phys() instead of virt_to_phys(sg_virt(sg)) so that we don't
require a kernel virtual address.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/c6x/kernel/dma.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
index ab7b12d..79cae03 100644
--- a/arch/c6x/kernel/dma.c
+++ b/arch/c6x/kernel/dma.c
@@ -68,8 +68,7 @@ int dma_map_sg(struct device *dev, struct scatterlist *sglist,
 	int i;
 
 	for_each_sg(sglist, sg, nents, i)
-		sg->dma_address = dma_map_single(dev, sg_virt(sg), sg->length,
-						 dir);
+		sg->dma_address = sg_phys(sg);
 
 	debug_dma_map_sg(dev, sglist, nents, nents, dir);
 
-- 
1.9.1




From - Thu Nov 08 21:37:45 2018
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Subject: [PATCH 09/31] ia64/pci_dma: handle page-less SG entries
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/49948>

Use sg_phys() instead of virt_to_phys(sg_virt(sg)) so that we don't
require a kernel virtual address.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/ia64/sn/pci/pci_dma.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index d0853e8..8f713c8 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -18,9 +18,6 @@
 #include <asm/sn/pcidev.h>
 #include <asm/sn/sn_sal.h>
 
-#define SG_ENT_VIRT_ADDRESS(sg)	(sg_virt((sg)))
-#define SG_ENT_PHYS_ADDRESS(SG)	virt_to_phys(SG_ENT_VIRT_ADDRESS(SG))
-
 /**
  * sn_dma_supported - test a DMA mask
  * @dev: device to test
@@ -291,7 +288,7 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
 	 */
 	for_each_sg(sgl, sg, nhwentries, i) {
 		dma_addr_t dma_addr;
-		phys_addr = SG_ENT_PHYS_ADDRESS(sg);
+		phys_addr = sg_phys(sg);
 		if (dmabarr)
 			dma_addr = provider->dma_map_consistent(pdev,
 								phys_addr,
-- 
1.9.1




From - Thu Nov 08 21:37:45 2018
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure
Subject: [PATCH 11/31] sparc/iommu: handle page-less SG entries
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/49949>

Use sg_phys() instead of __pa(sg_virt(sg)) so that we don't
require a kernel virtual address.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sparc/kernel/iommu.c        | 2 +-
 arch/sparc/kernel/iommu_common.h | 4 +---
 arch/sparc/kernel/pci_sun4v.c    | 2 +-
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index 5320689..2ad89d2 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -486,7 +486,7 @@ static int dma_4u_map_sg(struct device *dev, struct scatterlist *sglist,
 			continue;
 		}
 		/* Allocate iommu entries for that segment */
-		paddr = (unsigned long) SG_ENT_PHYS_ADDRESS(s);
+		paddr = sg_phys(s);
 		npages = iommu_num_pages(paddr, slen, IO_PAGE_SIZE);
 		entry = iommu_tbl_range_alloc(dev, &iommu->tbl, npages,
 					      &handle, (unsigned long)(-1), 0);
diff --git a/arch/sparc/kernel/iommu_common.h b/arch/sparc/kernel/iommu_common.h
index b40cec2..8e2c211 100644
--- a/arch/sparc/kernel/iommu_common.h
+++ b/arch/sparc/kernel/iommu_common.h
@@ -33,15 +33,13 @@
  */
 #define IOMMU_PAGE_SHIFT		13
 
-#define SG_ENT_PHYS_ADDRESS(SG)	(__pa(sg_virt((SG))))
-
 static inline int is_span_boundary(unsigned long entry,
 				   unsigned long shift,
 				   unsigned long boundary_size,
 				   struct scatterlist *outs,
 				   struct scatterlist *sg)
 {
-	unsigned long paddr = SG_ENT_PHYS_ADDRESS(outs);
+	unsigned long paddr = sg_phys(outs);
 	int nr = iommu_num_pages(paddr, outs->dma_length + sg->length,
 				 IO_PAGE_SIZE);
 
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index d2fe57d..a7a6e41 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -370,7 +370,7 @@ static int dma_4v_map_sg(struct device *dev, struct scatterlist *sglist,
 			continue;
 		}
 		/* Allocate iommu entries for that segment */
-		paddr = (unsigned long) SG_ENT_PHYS_ADDRESS(s);
+		paddr = sg_phys(s);
 		npages = iommu_num_pages(paddr, slen, IO_PAGE_SIZE);
 		entry = iommu_tbl_range_alloc(dev, &iommu->tbl, npages,
 					      &handle, (unsigned long)(-1), 0);
-- 
1.9.1




From - Thu Nov 08 21:37:45 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 26/31] openrisc: handle page-less SG entries
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Make all cache invalidation conditional on sg_has_page() and use
sg_phys to get the physical address directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/openrisc/kernel/dma.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index 0b77ddb..94ed052 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -184,8 +184,13 @@ or1k_map_sg(struct device *dev, struct scatterlist *sg,
 	int i;
 
 	for_each_sg(sg, s, nents, i) {
-		s->dma_address = or1k_map_page(dev, sg_page(s), s->offset,
-					       s->length, dir, NULL);
+		if (sg_has_page(s)) {
+			s->dma_address = or1k_map_page(dev, sg_page(s),
+						s->offset, s->length, dir,
+						NULL);
+		} else {
+			s->dma_address = sg_phys(s);
+		}
 	}
 
 	return nents;
-- 
1.9.1

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From - Thu Nov 08 21:37:45 2018
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure
Subject: [PATCH 12/31] mn10300: handle page-less SG entries
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Just remove a BUG_ON, the code handles them just fine as-is.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/mn10300/include/asm/dma-mapping.h | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index a18abfc..b1b1050 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -57,11 +57,8 @@ int dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	BUG_ON(!valid_dma_direction(direction));
 	WARN_ON(nents == 0 || sglist[0].length == 0);
 
-	for_each_sg(sglist, sg, nents, i) {
-		BUG_ON(!sg_page(sg));
-
+	for_each_sg(sglist, sg, nents, i)
 		sg->dma_address = sg_phys(sg);
-	}
 
 	mn10300_dcache_flush_inv();
 	return nents;
-- 
1.9.1




From - Thu Nov 08 21:37:45 2018
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Subject: [PATCH 24/31] xtensa: handle page-less SG entries
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2018394>

Make all cache invalidation conditional on sg_has_page().

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/xtensa/include/asm/dma-mapping.h | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 1f5f6dc..262a1d1 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -61,10 +61,9 @@ dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	BUG_ON(direction == DMA_NONE);
 
 	for_each_sg(sglist, sg, nents, i) {
-		BUG_ON(!sg_page(sg));
-
 		sg->dma_address = sg_phys(sg);
-		consistent_sync(sg_virt(sg), sg->length, direction);
+		if (sg_has_page(sg))
+			consistent_sync(sg_virt(sg), sg->length, direction);
 	}
 
 	return nents;
@@ -131,8 +130,10 @@ dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nelems,
 	int i;
 	struct scatterlist *sg;
 
-	for_each_sg(sglist, sg, nelems, i)
-		consistent_sync(sg_virt(sg), sg->length, dir);
+	for_each_sg(sglist, sg, nelems, i) {
+		if (sg_has_page(sg))
+			consistent_sync(sg_virt(sg), sg->length, dir);
+	}
 }
 
 static inline void
@@ -142,8 +143,10 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
 	int i;
 	struct scatterlist *sg;
 
-	for_each_sg(sglist, sg, nelems, i)
-		consistent_sync(sg_virt(sg), sg->length, dir);
+	for_each_sg(sglist, sg, nelems, i) {
+		if (sg_has_page(sg))
+			consistent_sync(sg_virt(sg), sg->length, dir);
+	}
 }
 static inline int
 dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-- 
1.9.1


From - Thu Nov 08 21:37:45 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/49953>

Use

    sg_phys(sg) & PAGE_MASK

instead of

    page_to_pfn(sg_page(sg)) << PAGE_SHIFT

to get at the page-aligned physical address ofa SG entry, so that
we don't require a page backing for SG entries.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sparc/kernel/ldc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c
index 1ae5eb1..0a29974 100644
--- a/arch/sparc/kernel/ldc.c
+++ b/arch/sparc/kernel/ldc.c
@@ -2051,7 +2051,7 @@ static void fill_cookies(struct cookie_state *sp, unsigned long pa,
 
 static int sg_count_one(struct scatterlist *sg)
 {
-	unsigned long base = page_to_pfn(sg_page(sg)) << PAGE_SHIFT;
+	unsigned long base = sg_phys(sg) & PAGE_MASK;
 	long len = sg->length;
 
 	if ((sg->offset | len) & (8UL - 1))
@@ -2114,7 +2114,7 @@ int ldc_map_sg(struct ldc_channel *lp,
 	state.nc = 0;
 
 	for_each_sg(sg, s, num_sg, i) {
-		fill_cookies(&state, page_to_pfn(sg_page(s)) << PAGE_SHIFT,
+		fill_cookies(&state, sg_phys(s) & PAGE_MASK,
 			     s->offset, s->length);
 	}
 
-- 
1.9.1




From - Thu Nov 08 21:37:45 2018
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Subject: [PATCH 14/31] sparc32/io-unit: handle page-less SG entries
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For the iommu offset we just need and offset into the page.  Calculate
that using the physical address instead of using the virtual address
so that we don't require a virtual mapping.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sparc/mm/io-unit.c | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c
index f311bf2..82f97ae 100644
--- a/arch/sparc/mm/io-unit.c
+++ b/arch/sparc/mm/io-unit.c
@@ -91,13 +91,14 @@ static int __init iounit_init(void)
 subsys_initcall(iounit_init);
 
 /* One has to hold iounit->lock to call this */
-static unsigned long iounit_get_area(struct iounit_struct *iounit, unsigned long vaddr, int size)
+static dma_addr_t iounit_get_area(struct iounit_struct *iounit,
+		unsigned long paddr, int size)
 {
 	int i, j, k, npages;
-	unsigned long rotor, scan, limit;
+	unsigned long rotor, scan, limit, dma_addr;
 	iopte_t iopte;
 
-        npages = ((vaddr & ~PAGE_MASK) + size + (PAGE_SIZE-1)) >> PAGE_SHIFT;
+        npages = ((paddr & ~PAGE_MASK) + size + (PAGE_SIZE-1)) >> PAGE_SHIFT;
 
 	/* A tiny bit of magic ingredience :) */
 	switch (npages) {
@@ -106,7 +107,7 @@ static unsigned long iounit_get_area(struct iounit_struct *iounit, unsigned long
 	default: i = 0x0213; break;
 	}
 	
-	IOD(("iounit_get_area(%08lx,%d[%d])=", vaddr, size, npages));
+	IOD(("iounit_get_area(%08lx,%d[%d])=", paddr, size, npages));
 	
 next:	j = (i & 15);
 	rotor = iounit->rotor[j - 1];
@@ -121,7 +122,7 @@ nexti:	scan = find_next_zero_bit(iounit->bmap, limit, scan);
 		}
 		i >>= 4;
 		if (!(i & 15))
-			panic("iounit_get_area: Couldn't find free iopte slots for (%08lx,%d)\n", vaddr, size);
+			panic("iounit_get_area: Couldn't find free iopte slots for (%08lx,%d)\n", paddr, size);
 		goto next;
 	}
 	for (k = 1, scan++; k < npages; k++)
@@ -129,14 +130,14 @@ nexti:	scan = find_next_zero_bit(iounit->bmap, limit, scan);
 			goto nexti;
 	iounit->rotor[j - 1] = (scan < limit) ? scan : iounit->limit[j - 1];
 	scan -= npages;
-	iopte = MKIOPTE(__pa(vaddr & PAGE_MASK));
-	vaddr = IOUNIT_DMA_BASE + (scan << PAGE_SHIFT) + (vaddr & ~PAGE_MASK);
+	iopte = MKIOPTE(paddr & PAGE_MASK);
+	dma_addr = IOUNIT_DMA_BASE + (scan << PAGE_SHIFT) + (paddr & ~PAGE_MASK);
 	for (k = 0; k < npages; k++, iopte = __iopte(iopte_val(iopte) + 0x100), scan++) {
 		set_bit(scan, iounit->bmap);
 		sbus_writel(iopte, &iounit->page_table[scan]);
 	}
-	IOD(("%08lx\n", vaddr));
-	return vaddr;
+	IOD(("%08lx\n", dma_addr));
+	return dma_addr;
 }
 
 static __u32 iounit_get_scsi_one(struct device *dev, char *vaddr, unsigned long len)
@@ -145,7 +146,7 @@ static __u32 iounit_get_scsi_one(struct device *dev, char *vaddr, unsigned long
 	unsigned long ret, flags;
 	
 	spin_lock_irqsave(&iounit->lock, flags);
-	ret = iounit_get_area(iounit, (unsigned long)vaddr, len);
+	ret = iounit_get_area(iounit, virt_to_phys(vaddr), len);
 	spin_unlock_irqrestore(&iounit->lock, flags);
 	return ret;
 }
@@ -159,7 +160,7 @@ static void iounit_get_scsi_sgl(struct device *dev, struct scatterlist *sg, int
 	spin_lock_irqsave(&iounit->lock, flags);
 	while (sz != 0) {
 		--sz;
-		sg->dma_address = iounit_get_area(iounit, (unsigned long) sg_virt(sg), sg->length);
+		sg->dma_address = iounit_get_area(iounit, sg_phys(sg), sg->length);
 		sg->dma_length = sg->length;
 		sg = sg_next(sg);
 	}
-- 
1.9.1




From - Thu Nov 08 21:37:45 2018
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Subject: [PATCH 22/31] metag: handle page-less SG entries
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Make all cache invalidation conditional on sg_has_page().

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/metag/include/asm/dma-mapping.h | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index eb5cdec..2ae9057 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -55,10 +55,9 @@ dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	WARN_ON(nents == 0 || sglist[0].length == 0);
 
 	for_each_sg(sglist, sg, nents, i) {
-		BUG_ON(!sg_page(sg));
-
 		sg->dma_address = sg_phys(sg);
-		dma_sync_for_device(sg_virt(sg), sg->length, direction);
+		if (sg_has_page(sg))
+			dma_sync_for_device(sg_virt(sg), sg->length, direction);
 	}
 
 	return nents;
@@ -94,10 +93,9 @@ dma_unmap_sg(struct device *dev, struct scatterlist *sglist, int nhwentries,
 	WARN_ON(nhwentries == 0 || sglist[0].length == 0);
 
 	for_each_sg(sglist, sg, nhwentries, i) {
-		BUG_ON(!sg_page(sg));
-
 		sg->dma_address = sg_phys(sg);
-		dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
+		if (sg_has_page(sg))
+			dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
 	}
 }
 
@@ -140,8 +138,10 @@ dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nelems,
 	int i;
 	struct scatterlist *sg;
 
-	for_each_sg(sglist, sg, nelems, i)
-		dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
+	for_each_sg(sglist, sg, nelems, i) {
+		if (sg_has_page(sg))
+			dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
+	}
 }
 
 static inline void
@@ -151,8 +151,10 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
 	int i;
 	struct scatterlist *sg;
 
-	for_each_sg(sglist, sg, nelems, i)
-		dma_sync_for_device(sg_virt(sg), sg->length, direction);
+	for_each_sg(sglist, sg, nelems, i) {
+		if (sg_has_page(sg))
+			dma_sync_for_device(sg_virt(sg), sg->length, direction);
+	}
 }
 
 static inline int
-- 
1.9.1

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From - Thu Nov 08 21:37:45 2018
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure
Subject: [PATCH 16/31] s390: handle page-less SG entries
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Use sg_phys() instead of page_to_phys(sg_page(sg)) so that we don't
require a page structure for all DMA memory.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/s390/pci/pci_dma.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index 6fd8d58..aae5a47 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -272,14 +272,13 @@ int dma_set_mask(struct device *dev, u64 mask)
 }
 EXPORT_SYMBOL_GPL(dma_set_mask);
 
-static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
-				     unsigned long offset, size_t size,
+static dma_addr_t s390_dma_map_phys(struct device *dev, unsigned long pa,
+				     size_t size,
 				     enum dma_data_direction direction,
 				     struct dma_attrs *attrs)
 {
 	struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
 	unsigned long nr_pages, iommu_page_index;
-	unsigned long pa = page_to_phys(page) + offset;
 	int flags = ZPCI_PTE_VALID;
 	dma_addr_t dma_addr;
 
@@ -301,7 +300,7 @@ static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
 
 	if (!dma_update_trans(zdev, pa, dma_addr, size, flags)) {
 		atomic64_add(nr_pages, &zdev->mapped_pages);
-		return dma_addr + (offset & ~PAGE_MASK);
+		return dma_addr + (pa & ~PAGE_MASK);
 	}
 
 out_free:
@@ -312,6 +311,16 @@ out_err:
 	return DMA_ERROR_CODE;
 }
 
+static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
+				     unsigned long offset, size_t size,
+				     enum dma_data_direction direction,
+				     struct dma_attrs *attrs)
+{
+	unsigned long pa = page_to_phys(page) + offset;
+
+	return s390_dma_map_phys(dev, pa, size, direction, attrs);
+}
+
 static void s390_dma_unmap_pages(struct device *dev, dma_addr_t dma_addr,
 				 size_t size, enum dma_data_direction direction,
 				 struct dma_attrs *attrs)
@@ -384,8 +393,7 @@ static int s390_dma_map_sg(struct device *dev, struct scatterlist *sg,
 	int i;
 
 	for_each_sg(sg, s, nr_elements, i) {
-		struct page *page = sg_page(s);
-		s->dma_address = s390_dma_map_pages(dev, page, s->offset,
+		s->dma_address = s390_dma_map_phys(dev, sg_phys(s),
 						    s->length, dir, NULL);
 		if (!dma_mapping_error(dev, s->dma_address)) {
 			s->dma_length = s->length;
-- 
1.9.1




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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 20/31] avr32: handle page-less SG entries
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/613>

Make all cache invalidation conditional on sg_has_page() and use
sg_phys to get the physical address directly, bypassing the noop
page_to_bus.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/avr32/include/asm/dma-mapping.h | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index ae7ac92..a662ce2 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -216,11 +216,9 @@ dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	struct scatterlist *sg;
 
 	for_each_sg(sglist, sg, nents, i) {
-		char *virt;
-
-		sg->dma_address = page_to_bus(sg_page(sg)) + sg->offset;
-		virt = sg_virt(sg);
-		dma_cache_sync(dev, virt, sg->length, direction);
+		sg->dma_address = sg_phys(sg);
+		if (sg_has_page(sg))
+			dma_cache_sync(dev, sg_virt(sg), sg->length, direction);
 	}
 
 	return nents;
@@ -328,8 +326,10 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
 	int i;
 	struct scatterlist *sg;
 
-	for_each_sg(sglist, sg, nents, i)
-		dma_cache_sync(dev, sg_virt(sg), sg->length, direction);
+	for_each_sg(sglist, sg, nents, i) {
+		if (sg_has_page(sg))
+			dma_cache_sync(dev, sg_virt(sg), sg->length, direction);
+	}
 }
 
 /* Now for the API extensions over the pci_ one */
-- 
1.9.1


From - Thu Nov 08 21:37:45 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 18/31] nios2: handle page-less SG entries
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Make all cache invalidation conditional on sg_has_page() and use
sg_phys to get the physical address directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/nios2/mm/dma-mapping.c | 29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index ac5da75..1a0a68d 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -64,13 +64,11 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
 	BUG_ON(!valid_dma_direction(direction));
 
 	for_each_sg(sg, sg, nents, i) {
-		void *addr;
-
-		addr = sg_virt(sg);
-		if (addr) {
-			__dma_sync_for_device(addr, sg->length, direction);
-			sg->dma_address = sg_phys(sg);
+		if (sg_has_page(sg)) {
+			__dma_sync_for_device(sg_virt(sg), sg->length,
+						direction);
 		}
+		sg->dma_address = sg_phys(sg);
 	}
 
 	return nents;
@@ -113,9 +111,8 @@ void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
 		return;
 
 	for_each_sg(sg, sg, nhwentries, i) {
-		addr = sg_virt(sg);
-		if (addr)
-			__dma_sync_for_cpu(addr, sg->length, direction);
+		if (sg_has_page(sg))
+			__dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
 	}
 }
 EXPORT_SYMBOL(dma_unmap_sg);
@@ -166,8 +163,10 @@ void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
 	BUG_ON(!valid_dma_direction(direction));
 
 	/* Make sure that gcc doesn't leave the empty loop body.  */
-	for_each_sg(sg, sg, nelems, i)
-		__dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
+	for_each_sg(sg, sg, nelems, i) {
+		if (sg_has_page(sg))
+			__dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
+	}
 }
 EXPORT_SYMBOL(dma_sync_sg_for_cpu);
 
@@ -179,8 +178,10 @@ void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
 	BUG_ON(!valid_dma_direction(direction));
 
 	/* Make sure that gcc doesn't leave the empty loop body.  */
-	for_each_sg(sg, sg, nelems, i)
-		__dma_sync_for_device(sg_virt(sg), sg->length, direction);
-
+	for_each_sg(sg, sg, nelems, i) {
+		if (sg_has_page(sg))
+			__dma_sync_for_device(sg_virt(sg), sg->length,
+					direction);
+	}
 }
 EXPORT_SYMBOL(dma_sync_sg_for_device);
-- 
1.9.1




From - Thu Nov 08 21:37:45 2018
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X-Mozilla-Keys:                                                                                 
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From: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure
Subject: Re: [PATCH 20/31] avr32: handle page-less SG entries
Date: Wed, 12 Aug 2015 11:36:16 +0200
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To: Christoph Hellwig <hch@lst.de>
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Around Wed 12 Aug 2015 09:05:39 +0200 or thereabout, Christoph Hellwig wrote:
> Make all cache invalidation conditional on sg_has_page() and use
> sg_phys to get the physical address directly, bypassing the noop
> page_to_bus.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>

> ---
>  arch/avr32/include/asm/dma-mapping.h | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
> index ae7ac92..a662ce2 100644
> --- a/arch/avr32/include/asm/dma-mapping.h
> +++ b/arch/avr32/include/asm/dma-mapping.h
> @@ -216,11 +216,9 @@ dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
>  	struct scatterlist *sg;
>  
>  	for_each_sg(sglist, sg, nents, i) {
> -		char *virt;
> -
> -		sg->dma_address = page_to_bus(sg_page(sg)) + sg->offset;
> -		virt = sg_virt(sg);
> -		dma_cache_sync(dev, virt, sg->length, direction);
> +		sg->dma_address = sg_phys(sg);
> +		if (sg_has_page(sg))
> +			dma_cache_sync(dev, sg_virt(sg), sg->length, direction);
>  	}
>  
>  	return nents;
> @@ -328,8 +326,10 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
>  	int i;
>  	struct scatterlist *sg;
>  
> -	for_each_sg(sglist, sg, nents, i)
> -		dma_cache_sync(dev, sg_virt(sg), sg->length, direction);
> +	for_each_sg(sglist, sg, nents, i) {
> +		if (sg_has_page(sg))
> +			dma_cache_sync(dev, sg_virt(sg), sg->length, direction);
> +	}
>  }
>  
>  /* Now for the API extensions over the pci_ one */
-- 
mvh
Hans-Christian Egtvedt



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From: Michal Hocko <mhocko@kernel.org>
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Subject: Re: [PATCH v7 2/6] mm: mlock: Add new mlock system call
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On Sun 09-08-15 01:22:52, Eric B Munson wrote:
> With the refactored mlock code, introduce a new system call for mlock.
> The new call will allow the user to specify what lock states are being
> added.  mlock2 is trivial at the moment, but a follow on patch will add
> a new mlock state making it useful.

Looks good to me

Acked-by: Michal Hocko <mhocko@suse.com>

> Signed-off-by: Eric B Munson <emunson@akamai.com>
> Acked-by: Vlastimil Babka <vbabka@suse.cz>
> Cc: Michal Hocko <mhocko@suse.cz>
> Cc: Vlastimil Babka <vbabka@suse.cz>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: Geert Uytterhoeven <geert@linux-m68k.org>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
> Cc: Guenter Roeck <linux@roeck-us.net>
> Cc: Andrea Arcangeli <aarcange@redhat.com>
> Cc: linux-alpha@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: adi-buildroot-devel@lists.sourceforge.net
> Cc: linux-cris-kernel@axis.com
> Cc: linux-ia64@vger.kernel.org
> Cc: linux-m68k@lists.linux-m68k.org
> Cc: linux-am33-list@redhat.com
> Cc: linux-parisc@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: linux-s390@vger.kernel.org
> Cc: linux-sh@vger.kernel.org
> Cc: sparclinux@vger.kernel.org
> Cc: linux-xtensa@linux-xtensa.org
> Cc: linux-api@vger.kernel.org
> Cc: linux-arch@vger.kernel.org
> Cc: linux-mm@kvack.org
> ---
>  arch/x86/entry/syscalls/syscall_32.tbl | 1 +
>  arch/x86/entry/syscalls/syscall_64.tbl | 1 +
>  include/linux/syscalls.h               | 2 ++
>  include/uapi/asm-generic/unistd.h      | 4 +++-
>  kernel/sys_ni.c                        | 1 +
>  mm/mlock.c                             | 8 ++++++++
>  6 files changed, 16 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
> index ef8187f..8e06da6 100644
> --- a/arch/x86/entry/syscalls/syscall_32.tbl
> +++ b/arch/x86/entry/syscalls/syscall_32.tbl
> @@ -365,3 +365,4 @@
>  356	i386	memfd_create		sys_memfd_create
>  357	i386	bpf			sys_bpf
>  358	i386	execveat		sys_execveat			stub32_execveat
> +360	i386	mlock2			sys_mlock2
> diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
> index 9ef32d5..67601e7 100644
> --- a/arch/x86/entry/syscalls/syscall_64.tbl
> +++ b/arch/x86/entry/syscalls/syscall_64.tbl
> @@ -329,6 +329,7 @@
>  320	common	kexec_file_load		sys_kexec_file_load
>  321	common	bpf			sys_bpf
>  322	64	execveat		stub_execveat
> +324	common	mlock2			sys_mlock2
>  
>  #
>  # x32-specific system call numbers start at 512 to avoid cache impact
> diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
> index b45c45b..56a3d59 100644
> --- a/include/linux/syscalls.h
> +++ b/include/linux/syscalls.h
> @@ -884,4 +884,6 @@ asmlinkage long sys_execveat(int dfd, const char __user *filename,
>  			const char __user *const __user *argv,
>  			const char __user *const __user *envp, int flags);
>  
> +asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
> +
>  #endif
> diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
> index e016bd9..14a6013 100644
> --- a/include/uapi/asm-generic/unistd.h
> +++ b/include/uapi/asm-generic/unistd.h
> @@ -709,9 +709,11 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
>  __SYSCALL(__NR_bpf, sys_bpf)
>  #define __NR_execveat 281
>  __SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
> +#define __NR_mlock2 282
> +__SYSCALL(__NR_mlock2, sys_mlock2)
>  
>  #undef __NR_syscalls
> -#define __NR_syscalls 282
> +#define __NR_syscalls 283
>  
>  /*
>   * All syscalls below here should go away really,
> diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
> index 7995ef5..4818b71 100644
> --- a/kernel/sys_ni.c
> +++ b/kernel/sys_ni.c
> @@ -193,6 +193,7 @@ cond_syscall(sys_mlock);
>  cond_syscall(sys_munlock);
>  cond_syscall(sys_mlockall);
>  cond_syscall(sys_munlockall);
> +cond_syscall(sys_mlock2);
>  cond_syscall(sys_mincore);
>  cond_syscall(sys_madvise);
>  cond_syscall(sys_mremap);
> diff --git a/mm/mlock.c b/mm/mlock.c
> index 5692ee5..3094f27 100644
> --- a/mm/mlock.c
> +++ b/mm/mlock.c
> @@ -643,6 +643,14 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
>  	return do_mlock(start, len, VM_LOCKED);
>  }
>  
> +SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
> +{
> +	if (flags)
> +		return -EINVAL;
> +
> +	return do_mlock(start, len, VM_LOCKED);
> +}
> +
>  SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
>  {
>  	int ret;
> -- 
> 1.9.1

-- 
Michal Hocko
SUSE Labs

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Subject: Re: [PATCH 30/31] intel-iommu: handle page-less SG entries
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To: Christoph Hellwig <hch@lst.de>, torvalds@linux-foundation.org,
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On Wed, 2015-08-12 at 09:05 +0200, Christoph Hellwig wrote:
> Just remove a BUG_ON, the code handles them just fine as-is.
>=20
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Acked-by: David Woodhouse <David.Woodhouse@intel.com>

--=20
David Woodhouse                            Open Source Technology Centre
David.Woodhouse@intel.com                              Intel Corporation

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From - Thu Nov 08 21:37:45 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure
Subject: Re: [PATCH 19/31] arc: handle page-less SG entries
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Cc: "dan.j.williams@intel.com" <dan.j.williams@intel.com>,
	"hskinnemoen@gmail.com" <hskinnemoen@gmail.com>,
	"egtvedt@samfundet.no" <egtvedt@samfundet.no>,
	"realmz6@gmail.com" <realmz6@gmail.com>,
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	"monstr@monstr.eu" <monstr@monstr.eu>,
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To: Christoph Hellwig <hch@lst.de>,
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On Wednesday 12 August 2015 12:39 PM, Christoph Hellwig wrote:
> Make all cache invalidation conditional on sg_has_page() and use
> sg_phys to get the physical address directly.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>

With a minor nit below.

Acked-by: Vineet Gupta <vgupta@synopsys.com>

> ---
>  arch/arc/include/asm/dma-mapping.h | 26 +++++++++++++++++++-------
>  1 file changed, 19 insertions(+), 7 deletions(-)
>
> diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
> index 2d28ba9..42eb526 100644
> --- a/arch/arc/include/asm/dma-mapping.h
> +++ b/arch/arc/include/asm/dma-mapping.h
> @@ -108,9 +108,13 @@ dma_map_sg(struct device *dev, struct scatterlist *sg,
>  	struct scatterlist *s;
>  	int i;
>  
> -	for_each_sg(sg, s, nents, i)
> -		s->dma_address = dma_map_page(dev, sg_page(s), s->offset,
> -					       s->length, dir);
> +	for_each_sg(sg, s, nents, i) {
> +		if (sg_has_page(s)) {
> +			_dma_cache_sync((unsigned long)sg_virt(s), s->length,
> +					dir);
> +		}
> +		s->dma_address = sg_phys(s);
> +	}
>  
>  	return nents;
>  }
> @@ -163,8 +167,12 @@ dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nelems,
>  	int i;
>  	struct scatterlist *sg;
>  
> -	for_each_sg(sglist, sg, nelems, i)
> -		_dma_cache_sync((unsigned int)sg_virt(sg), sg->length, dir);
> +	for_each_sg(sglist, sg, nelems, i) {
> +		if (sg_has_page(sg)) {
> +			_dma_cache_sync((unsigned int)sg_virt(sg), sg->length,
> +					dir);
> +		}
> +	}
>  }
>  
>  static inline void
> @@ -174,8 +182,12 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
>  	int i;
>  	struct scatterlist *sg;
>  
> -	for_each_sg(sglist, sg, nelems, i)
> -		_dma_cache_sync((unsigned int)sg_virt(sg), sg->length, dir);
> +	for_each_sg(sglist, sg, nelems, i) {
> +		if (sg_has_page(sg)) {
> +			_dma_cache_sync((unsigned int)sg_virt(sg), sg->length,
> +				dir);

For consistency, could u please fix the left alignment of @dir above - another tab
perhaps ?

> +		}
> +	}
>  }
>  
>  static inline int dma_supported(struct device *dev, u64 dma_mask)

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From - Thu Nov 08 21:37:46 2018
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Subject: Re: [PATCH 16/31] s390: handle page-less SG entries
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To: Christoph Hellwig <hch@lst.de>
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On Wed, 12 Aug 2015, Christoph Hellwig wrote:

> Use sg_phys() instead of page_to_phys(sg_page(sg)) so that we don't
> require a page structure for all DMA memory.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com>


> ---
>  arch/s390/pci/pci_dma.c | 20 ++++++++++++++------
>  1 file changed, 14 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
> index 6fd8d58..aae5a47 100644
> --- a/arch/s390/pci/pci_dma.c
> +++ b/arch/s390/pci/pci_dma.c
> @@ -272,14 +272,13 @@ int dma_set_mask(struct device *dev, u64 mask)
>  }
>  EXPORT_SYMBOL_GPL(dma_set_mask);
>  
> -static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
> -				     unsigned long offset, size_t size,
> +static dma_addr_t s390_dma_map_phys(struct device *dev, unsigned long pa,
> +				     size_t size,
>  				     enum dma_data_direction direction,
>  				     struct dma_attrs *attrs)
>  {
>  	struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
>  	unsigned long nr_pages, iommu_page_index;
> -	unsigned long pa = page_to_phys(page) + offset;
>  	int flags = ZPCI_PTE_VALID;
>  	dma_addr_t dma_addr;
>  
> @@ -301,7 +300,7 @@ static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
>  
>  	if (!dma_update_trans(zdev, pa, dma_addr, size, flags)) {
>  		atomic64_add(nr_pages, &zdev->mapped_pages);
> -		return dma_addr + (offset & ~PAGE_MASK);
> +		return dma_addr + (pa & ~PAGE_MASK);
>  	}
>  
>  out_free:
> @@ -312,6 +311,16 @@ out_err:
>  	return DMA_ERROR_CODE;
>  }
>  
> +static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
> +				     unsigned long offset, size_t size,
> +				     enum dma_data_direction direction,
> +				     struct dma_attrs *attrs)
> +{
> +	unsigned long pa = page_to_phys(page) + offset;
> +
> +	return s390_dma_map_phys(dev, pa, size, direction, attrs);
> +}
> +
>  static void s390_dma_unmap_pages(struct device *dev, dma_addr_t dma_addr,
>  				 size_t size, enum dma_data_direction direction,
>  				 struct dma_attrs *attrs)
> @@ -384,8 +393,7 @@ static int s390_dma_map_sg(struct device *dev, struct scatterlist *sg,
>  	int i;
>  
>  	for_each_sg(sg, s, nr_elements, i) {
> -		struct page *page = sg_page(s);
> -		s->dma_address = s390_dma_map_pages(dev, page, s->offset,
> +		s->dma_address = s390_dma_map_phys(dev, sg_phys(s),
>  						    s->length, dir, NULL);
>  		if (!dma_mapping_error(dev, s->dma_address)) {
>  			s->dma_length = s->length;
> -- 
> 1.9.1
> 
> --
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From - Thu Nov 08 21:37:46 2018
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On 08/12/2015 10:05 AM, Christoph Hellwig wrote:
> Dan Williams started to look into addressing I/O to and from
> Persistent Memory in his series from June:
> 
> 	http://thread.gmane.org/gmane.linux.kernel.cross-arch/27944
> 
> I've started looking into DMA mapping of these SGLs specifically instead
> of the map_pfn method in there.  In addition to supporting NVDIMM backed
> I/O I also suspect this would be highly useful for media drivers that
> go through nasty hoops to be able to DMA from/to their ioremapped regions,
> with vb2_dc_get_userptr in drivers/media/v4l2-core/videobuf2-dma-contig.c
> being a prime example for the unsafe hacks currently used.
> 

The support I have suggested and submitted for zone-less sections.
(In my add_persistent_memory() patchset)

Would work perfectly well and transparent for all such multimedia cases.
(All hacks removed). In fact I have loaded pmem (with-pages) on a VRAM
a few times and it is great easy fun. (I wanted to experiment with cached
memory over a pcie)

> It turns out most DMA mapping implementation can handle SGLs without
> page structures with some fairly simple mechanical work.  Most of it
> is just about consistently using sg_phys.  For implementations that
> need to flush caches we need a new helper that skips these cache
> flushes if a entry doesn't have a kernel virtual address.
> 
> However the ccio (parisc) and sba_iommu (parisc & ia64) IOMMUs seem
> to be operate mostly on virtual addresses.  It's a fairly odd concept
> that I don't fully grasp, so I'll need some help with those if we want
> to bring this forward.
> 
> Additional this series skips ARM entirely for now.  The reason is
> that most arm implementations of the .map_sg operation just iterate
> over all entries and call ->map_page for it, which means we'd need
> to convert those to a ->map_pfn similar to Dan's previous approach.
> 

All this endless work for nothing more than uglyfing the Kernel, and
It will never end. When a real and fully working solution is right
here for more then a year.

If you are really up for a deep audit and a mammoth testing effort,
why not do a more worthy, and order of magnitude smaller work and support
2M and 1G variable sized "pages". All the virtual-vs-phisical-vs-caching
just works.

Most of the core work is there. Block layer and lots of other subsytems
already support sending a single page-pointer with bvec_offset bvec_len
bigger then 4K. Other system will be small fixes sprinkled around but
not at all this endless stream of subsystem after another of patches.
And for why.

The novelty of pages is the section object, the section is reached
from page* from virtual as well as physical planes. And is a center
that translate from all plains to all plains. You keep this concept
only make 2M-page sections and 1G-page sections.

It is a bit of work but is worth while, and accelerating tremendously
lots of workloads. Not like this abomination which only branches
things more and more, and making things fatter and slower.

It all feels like a typhoon, the inertia of tones and tons of
men hours work, in a huge wave. How will you ever stop such a
rushing mass. I'm trying to dock under but, surly it makes me sad.

Thanks
Boaz


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Subject: Re: [PATCH 29/31] parisc: handle page-less SG entries
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To: Christoph Hellwig <hch@lst.de>
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On Wed, Aug 12, 2015 at 12:05 AM, Christoph Hellwig <hch@lst.de> wrote:
> Make all cache invalidation conditional on sg_has_page() and use
> sg_phys to get the physical address directly.

So this worries me a bit (I'm just reacting to one random patch in the series).

The reason?

I think this wants a big honking comment somewhere saying "non-sg_page
accesses are not necessarily cache coherent").

Now, I don't think that's _wrong_, but it's an important distinction:
if you look up pages in the page tables directly, there's a very
subtle difference between then saving just the pfn and saving the
"struct page" of the result.

On sane architectures, this whole cache flushing thing doesn't matter.
Which just means that it's going to be even more subtle on the odd
broken ones..

I'm assuming that anybody who wants to use the page-less
scatter-gather lists always does so on memory that isn't actually
virtually mapped at all, or only does so on sane architectures that
are cache coherent at a physical level, but I'd like that assumption
*documented* somewhere.

(And maybe it is, and I just didn't get to that patch yet)

                   Linus

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Subject: Re: [PATCH 31/31] dma-mapping-common: skip kmemleak checks for
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On Wed, Aug 12, 2015 at 12:05 AM, Christoph Hellwig <hch@lst.de> wrote:
> +       for_each_sg(sg, s, nents, i) {
> +               if (sg_has_page(s))
> +                       kmemcheck_mark_initialized(sg_virt(s), s->length);
> +       }

[ Again, I'm responding to one random patch - this pattern was in
other patches too.  ]

A question: do we actually expect to mix page-less and pageful SG
entries in the same SG list?

How does that happen?

(I'm not saying it can't, I'm just wondering where people expect this
to happen).

IOW, maybe it would be valid to have a rule saying "a SG list is
either all pageful or pageless, never mixed", and then have the "if"
statement outside the loop rather than inside.

                      Linus



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Subject: Re: [PATCH 31/31] dma-mapping-common: skip kmemleak checks for
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To: Christoph Hellwig <hch@lst.de>
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Christoph,

On 12 August 2015 at 08:05, Christoph Hellwig <hch@lst.de> wrote:
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  include/asm-generic/dma-mapping-common.h | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/include/asm-generic/dma-mapping-common.h b/include/asm-generic/dma-mapping-common.h
> index 940d5ec..afc3eaf 100644
> --- a/include/asm-generic/dma-mapping-common.h
> +++ b/include/asm-generic/dma-mapping-common.h
> @@ -51,8 +51,10 @@ static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
>         int i, ents;
>         struct scatterlist *s;
>
> -       for_each_sg(sg, s, nents, i)
> -               kmemcheck_mark_initialized(sg_virt(s), s->length);
> +       for_each_sg(sg, s, nents, i) {
> +               if (sg_has_page(s))
> +                       kmemcheck_mark_initialized(sg_virt(s), s->length);
> +       }

Just a nitpick for the subject, it should say "kmemcheck" rather than
"kmemleak" (different features ;)).

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From - Thu Nov 08 21:37:46 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure
Subject: Re: RFC: prepare for struct scatterlist entries without page backing
Date: Wed, 12 Aug 2015 10:00:07 -0700
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To: Christoph Hellwig <hch@lst.de>
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On Wed, 2015-08-12 at 09:05 +0200, Christoph Hellwig wrote:
> Dan Williams started to look into addressing I/O to and from
> Persistent Memory in his series from June:
> 
> 	http://thread.gmane.org/gmane.linux.kernel.cross-arch/27944
> 
> I've started looking into DMA mapping of these SGLs specifically instead
> of the map_pfn method in there.  In addition to supporting NVDIMM backed
> I/O I also suspect this would be highly useful for media drivers that
> go through nasty hoops to be able to DMA from/to their ioremapped regions,
> with vb2_dc_get_userptr in drivers/media/v4l2-core/videobuf2-dma-contig.c
> being a prime example for the unsafe hacks currently used.
> 
> It turns out most DMA mapping implementation can handle SGLs without
> page structures with some fairly simple mechanical work.  Most of it
> is just about consistently using sg_phys.  For implementations that
> need to flush caches we need a new helper that skips these cache
> flushes if a entry doesn't have a kernel virtual address.
> 
> However the ccio (parisc) and sba_iommu (parisc & ia64) IOMMUs seem
> to be operate mostly on virtual addresses.  It's a fairly odd concept
> that I don't fully grasp, so I'll need some help with those if we want
> to bring this forward.

I can explain that.  I think this doesn't apply to ia64 because it's
cache is PIPT, but on parisc, we have a VIPT cache.

On normal physically indexed architectures, when the iommu sees a DMA
transfer to/from physical memory, it also notifies the CPU to flush the
internal CPU caches of those lines.  This is usually an interlocking
step of the transfer to make sure the page is coherent before transfer
to/from the device (it's why the ia32 for instance is a coherent
architecture).  Because the system is physically indexed, there's no
need to worry about aliases.

On Virtually Indexed systems, like parisc, there is an aliasing problem.
The CCIO iommu unit (and all other iommu systems on parisc) have what's
called a local coherence index (LCI).  You program it as part of the
IOMMU page table and it tells the system which Virtual line in the cache
to flush as part of the IO transaction, thus still ensuring cache
coherence.  That's why we have to know the virtual as well as physical
addresses for the page.  The problem we have in Linux is that we have
two virtual addresses, which are often incoherent aliases: the user
virtual address and a kernel virtual address but we can only make the
page coherent with a single alias (only one LCI).  The way I/O on Linux
currently works is that get_user_pages actually flushes the user virtual
address, so that's expected to be coherent, so the address we program
into the VCI is the kernel virtual address.  Usually nothing in the
kernel has ever touched the page, so there's nothing to flush, but we do
it just in case.

In theory, for these non kernel page backed SG entries, we can make the
process more efficient by not flushing in gup and instead programming
the user virtual address into the local coherence index.  However,
simply zeroing the LCI will also work (except that poor VI zero line
will get flushed repeatedly, so it's probably best to pick a known
untouched line in the kernel).

James


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From - Thu Nov 08 21:37:46 2018
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From: Grant Grundler <grantgrundler@gmail.com>
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Subject: Re: RFC: prepare for struct scatterlist entries without page backing
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On Wed, Aug 12, 2015 at 10:00 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Wed, 2015-08-12 at 09:05 +0200, Christoph Hellwig wrote:
...
>> However the ccio (parisc) and sba_iommu (parisc & ia64) IOMMUs seem
>> to be operate mostly on virtual addresses.  It's a fairly odd concept
>> that I don't fully grasp, so I'll need some help with those if we want
>> to bring this forward.

James explained the primary function of IOMMUs on parisc (DMA-Cache
coherency) much better than I ever could.

Three more observations:
1) the IOMMU can be bypassed by 64-bit DMA devices on IA64.

2) IOMMU enables 32-bit DMA devices to reach > 32-bit physical memory
and thus avoiding bounce buffers. parisc and older IA-64 have some
32-bit PCI devices - e.g. IDE boot HDD.

3) IOMMU acts as a proxy for IO devices by fetching cachelines of data
for PA-RISC systems whose memory controllers ONLY serve cacheline
sized transactions. ie. 32-bit DMA results in the IOMMU fetching the
cacheline and updating just the 32-bits in a DMA cache coherent
fashion.

Bonus thought:
4) IOMMU can improve DMA performance in some cases using "hints"
provided by the OS (e.g. prefetching DMA data or using READ_CURRENT
bus transactions instead of normal memory fetches.)

cheers,
grant

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Tried 4.2.0-rc3-00246-g763e326 on A500 but it crashes on boot. This is 
still present in todays 4.2.0-rc6+git. 4.1 was fine, I Will bisect but 
it takes time.

PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9b
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
serial 0000:00:04.0: enabling device (0146 -> 0147)
console [ttyS0] disabled
0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 21, base_baud = 115200) is a 16550A
console [ttyS0] enabled
console [ttyS0] enabled
bootconsole [ttyB0] disabled
bootconsole [ttyB0] disabled
0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 21, base_baud = 115200) is a 16550A
0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 21, base_baud = 115200) is a 16550A
serial 0000:00:05.0: enabling device (0000 -> 0003)
serial 0000:00:05.0: enabling SERR and PARITY (0003 -> 0143)
0000:00:05.0: ttyS3 at MMIO 0xfffffffff8003000 (irq = 22, base_baud = 115200) is a 16550A
serial 0000:00:05.0: Couldn't register serial port 0, irq 22, type 2, error -28
sym53c8xx 0000:00:01.0: enabling device (0000 -> 0003)
sym53c8xx 0000:00:01.0: enabling SERR and PARITY (0003 -> 0143)

************* SYSTEM ALERT **************
SYSTEM NAME: a500-m
DATE: 07/26/2015 TIME: 06:06:56
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       ON       FLASH         OFF       ON         ON
LED State: There was a system interruption that did not take the system 
down.
Check Chassis and Console Logs for error messages.

0x0000007000FF6292 00000000 00000000 - type  0 = Data Field Unused
0x5800087000FF6292 00007306 1A060638 - type 11 = Timestamp 07/26/2015 
06:06:56
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:a
*****************************************




-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:37:46 2018
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From: Julian Calaby <julian.calaby@gmail.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sparc,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.ppc64.devel
Subject: Re: RFC: prepare for struct scatterlist entries without page backing
Date: Thu, 13 Aug 2015 09:37:37 +1000
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Cc: Linus Torvalds <torvalds@linux-foundation.org>, axboe@kernel.dk,
	linux-mips@linux-mips.org, linux-ia64@vger.kernel.org,
	linux-nvdimm@ml01.01.org, David Howells <dhowells@redhat.com>,
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To: Boaz Harrosh <boaz@plexistor.com>, Christoph Hellwig <hch@lst.de>
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Hi,

On Wed, Aug 12, 2015 at 10:42 PM, Boaz Harrosh <boaz@plexistor.com> wrote:
> On 08/12/2015 10:05 AM, Christoph Hellwig wrote:
>> It turns out most DMA mapping implementation can handle SGLs without
>> page structures with some fairly simple mechanical work.  Most of it
>> is just about consistently using sg_phys.  For implementations that
>> need to flush caches we need a new helper that skips these cache
>> flushes if a entry doesn't have a kernel virtual address.
>>
>> However the ccio (parisc) and sba_iommu (parisc & ia64) IOMMUs seem
>> to be operate mostly on virtual addresses.  It's a fairly odd concept
>> that I don't fully grasp, so I'll need some help with those if we want
>> to bring this forward.
>>
>> Additional this series skips ARM entirely for now.  The reason is
>> that most arm implementations of the .map_sg operation just iterate
>> over all entries and call ->map_page for it, which means we'd need
>> to convert those to a ->map_pfn similar to Dan's previous approach.
>>
>
[snip]
>
> It is a bit of work but is worth while, and accelerating tremendously
> lots of workloads. Not like this abomination which only branches
> things more and more, and making things fatter and slower.

As a random guy reading a big bunch of patches on code I know almost
nothing about, parts of this comment really resonated with me:
overall, we seem to be adding a lot of if statements to code that
appears to be in a hot path.

I.e. ~90% of this patch set seems to be just mechanically dropping
BUG_ON()s and converting open coded stuff to use accessor functions
(which should be macros or get inlined, right?) - and the remaining
bit is not flushing if we don't have a physical page somewhere.

Would it make sense to split this patch set into a few bits: one to
drop all the useless BUG_ON()s, one to convert all the open coded
stuff to accessor functions, then another to do the actual page-less
sg stuff?

Thanks,

-- 
Julian Calaby

Email: julian.calaby@gmail.com
Profile: http://www.google.com/profiles/julian.calaby/

From - Thu Nov 08 21:37:46 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: A500 boot crash in 4.2.0-rc3-00246-g763e326
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On 2015-08-12, at 4:35 PM, Meelis Roos wrote:

> Tried 4.2.0-rc3-00246-g763e326 on A500 but it crashes on boot. This is 
> still present in todays 4.2.0-rc6+git. 4.1 was fine, I Will bisect but 
> it takes time.

This is probably a hpmc.  Could you look at SL event log?  It should show address of
the hpmc.  Then, look at kernel image with objdump and search for address.  This should
show where crash occurred and it might give a clue as to the cause.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:37:46 2018
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On 2015-08-12, at 4:35 PM, Meelis Roos wrote:

> serial 0000:00:05.0: Couldn't register serial port 0, irq 22, type 2, error -28

There's something wrong here.

Dave
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From - Thu Nov 08 21:37:46 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure
Subject: Re: [PATCH 29/31] parisc: handle page-less SG entries
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Cc: Jens Axboe <axboe@kernel.dk>,
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On Wed, Aug 12, 2015 at 09:01:02AM -0700, Linus Torvalds wrote:
> I'm assuming that anybody who wants to use the page-less
> scatter-gather lists always does so on memory that isn't actually
> virtually mapped at all, or only does so on sane architectures that
> are cache coherent at a physical level, but I'd like that assumption
> *documented* somewhere.

It's temporarily mapped by kmap-like helpers.  That code isn't in
this series. The most recent version of it is here:

https://git.kernel.org/cgit/linux/kernel/git/djbw/nvdimm.git/commit/?h=pfn&id=de8237c99fdb4352be2193f3a7610e902b9bb2f0

note that it's not doing the cache flushing it would have to do yet, but
it's also only enabled for x86 at the moment.
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From - Thu Nov 08 21:37:46 2018
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Subject: Re: [PATCH 31/31] dma-mapping-common: skip kmemleak checks for
	page-less SG entries
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Wed, Aug 12, 2015 at 09:05:15AM -0700, Linus Torvalds wrote:
> [ Again, I'm responding to one random patch - this pattern was in
> other patches too.  ]
> 
> A question: do we actually expect to mix page-less and pageful SG
> entries in the same SG list?
> 
> How does that happen?

Both for DAX and the video buffer case people could do direct I/O
spanning the boundary between such a VMA and a normal one unless
we add special code to prevent that.  Right now I don't think it's
all that useful, but then again it doesn't seem harmful either
and adding those checks might add up.

From - Thu Nov 08 21:37:47 2018
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Subject: Re: RFC: prepare for struct scatterlist entries without page
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To: Julian Calaby <julian.calaby@gmail.com>
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On Thu, Aug 13, 2015 at 09:37:37AM +1000, Julian Calaby wrote:
> I.e. ~90% of this patch set seems to be just mechanically dropping
> BUG_ON()s and converting open coded stuff to use accessor functions
> (which should be macros or get inlined, right?) - and the remaining
> bit is not flushing if we don't have a physical page somewhere.

Which is was 90%.  By lines changed most actually is the diffs for
the cache flushing.

> Would it make sense to split this patch set into a few bits: one to
> drop all the useless BUG_ON()s, one to convert all the open coded
> stuff to accessor functions, then another to do the actual page-less
> sg stuff?

Without the ifs the BUG_ON() actually are useful to assert we
never feed the sort of physical addresses we can't otherwise support,
so I don't think that part is doable.

A simple series to make more use of sg_phys and add sg_pfn might
still be useful, though.
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From - Thu Nov 08 21:37:47 2018
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Subject: Re: RFC: prepare for struct scatterlist entries without page
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To: Boaz Harrosh <boaz@plexistor.com>
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On Wed, Aug 12, 2015 at 03:42:47PM +0300, Boaz Harrosh wrote:
> The support I have suggested and submitted for zone-less sections.
> (In my add_persistent_memory() patchset)
>
> Would work perfectly well and transparent for all such multimedia cases.
> (All hacks removed). In fact I have loaded pmem (with-pages) on a VRAM
> a few times and it is great easy fun. (I wanted to experiment with cached
> memory over a pcie)

And everyone agree that it was both buggy and incomplete.

Dan has done a respin of the page backed nvdimm work with most of
these comments addressed.

I have to say I hate both pfn-based I/O [1] and page backed nvdimms with
passion, so we're looking into the lesser evil with an open mind.

[1] not the SGL part posted here, which I think is quite sane.  The bio
    side is much worse, though.
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> > serial 0000:00:05.0: Couldn't register serial port 0, irq 22, type 2, error -28
> 
> There's something wrong here.

Yes, but this is the same for a working kernel.

-- 
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> > Tried 4.2.0-rc3-00246-g763e326 on A500 but it crashes on boot. This is 
> > still present in todays 4.2.0-rc6+git. 4.1 was fine, I Will bisect but 
> > it takes time.
> 
> This is probably a hpmc.  Could you look at SL event log?  It should show address of
> the hpmc.  Then, look at kernel image with objdump and search for address.  This should
> show where crash occurred and it might give a clue as to the cause.

How do I set filters for SL?

-- 
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From - Thu Nov 08 21:37:47 2018
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From: Boaz Harrosh <boaz@plexistor.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.metag,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.ppc64.devel
Subject: Re: RFC: prepare for struct scatterlist entries without page backing
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To: Christoph Hellwig <hch@lst.de>
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On 08/13/2015 05:40 PM, Christoph Hellwig wrote:
> On Wed, Aug 12, 2015 at 03:42:47PM +0300, Boaz Harrosh wrote:
>> The support I have suggested and submitted for zone-less sections.
>> (In my add_persistent_memory() patchset)
>>
>> Would work perfectly well and transparent for all such multimedia cases.
>> (All hacks removed). In fact I have loaded pmem (with-pages) on a VRAM
>> a few times and it is great easy fun. (I wanted to experiment with cached
>> memory over a pcie)
> 
> And everyone agree that it was both buggy and incomplete.
> 

What? No one ever said anything about bugs. Is the first ever I hear of it.
I was always in the notion that no one even tried it out.

I'm smoking these page-full nvidimms for more than a year. With RDMA to
pears and swap out to disks. So is not that bad I would say

> Dan has done a respin of the page backed nvdimm work with most of
> these comments addressed.
> 

I would love some comments. All I got so far is silence. (And I do not
like Dan's patches comments will come next week)

> I have to say I hate both pfn-based I/O [1] and page backed nvdimms with
> passion, so we're looking into the lesser evil with an open mind.
> 
> [1] not the SGL part posted here, which I think is quite sane.  The bio
>     side is much worse, though.
> 

What can I say. I like the page-backed nvdimms. And the long term for me
is 2M pages. I hope we can sit one day soon and you explain to me whats
evil about it. I would really really like to understand

Thanks though
Boaz

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From - Thu Nov 08 21:37:47 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: A500 boot crash in 4.2.0-rc3-00246-g763e326
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On 2015-08-13 11:42 AM, Meelis Roos wrote:
>>> Tried 4.2.0-rc3-00246-g763e326 on A500 but it crashes on boot. This is
>>> still present in todays 4.2.0-rc6+git. 4.1 was fine, I Will bisect but
>>> it takes time.
>> This is probably a hpmc.  Could you look at SL event log?  It should show address of
>> the hpmc.  Then, look at kernel image with objdump and search for address.  This should
>> show where crash occurred and it might give a clue as to the cause.
> How do I set filters for SL?
>
I think you need to entry an "E" for event log and just select default 
for filters.

Dave

-- 
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From - Thu Nov 08 21:37:47 2018
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From: Julian Calaby <julian.calaby@gmail.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sparc,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.ppc64.devel
Subject: Re: RFC: prepare for struct scatterlist entries without page backing
Date: Fri, 14 Aug 2015 09:40:30 +1000
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Cc: Boaz Harrosh <boaz@plexistor.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	axboe@kernel.dk, linux-mips@linux-mips.org,
	linux-ia64@vger.kernel.org, linux-nvdimm@ml01.01.org,
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To: Christoph Hellwig <hch@lst.de>
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Hi Christoph,

On Fri, Aug 14, 2015 at 12:35 AM, Christoph Hellwig <hch@lst.de> wrote:
> On Thu, Aug 13, 2015 at 09:37:37AM +1000, Julian Calaby wrote:
>> I.e. ~90% of this patch set seems to be just mechanically dropping
>> BUG_ON()s and converting open coded stuff to use accessor functions
>> (which should be macros or get inlined, right?) - and the remaining
>> bit is not flushing if we don't have a physical page somewhere.
>
> Which is was 90%.  By lines changed most actually is the diffs for
> the cache flushing.

I was talking in terms of changes made, not lines changed: by my
recollection, about a third of the patches didn't touch flush calls
and most of the lines changed looked like refactoring so that making
the flush call conditional would be easier.

I guess it smelled like you were doing lots of distinct changes in a
single patch and I got my numbers wrong.

>> Would it make sense to split this patch set into a few bits: one to
>> drop all the useless BUG_ON()s, one to convert all the open coded
>> stuff to accessor functions, then another to do the actual page-less
>> sg stuff?
>
> Without the ifs the BUG_ON() actually are useful to assert we
> never feed the sort of physical addresses we can't otherwise support,
> so I don't think that part is doable.

My point is that there's a couple of patches that only remove
BUG_ON()s, which implies that for that particular driver it doesn't
matter if there's a physical page or not, so therefore that code is
purely "documentation".

Thanks,

-- 
Julian Calaby

Email: julian.calaby@gmail.com
Profile: http://www.google.com/profiles/julian.calaby/

From - Thu Nov 08 21:37:47 2018
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Path: news.gmane.org!not-for-mail
From: Dan Williams <dan.j.williams@intel.com>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.kernel.cross-arch,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 29/31] parisc: handle page-less SG entries
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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To: Christoph Hellwig <hch@lst.de>
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On Thu, Aug 13, 2015 at 7:31 AM, Christoph Hellwig <hch@lst.de> wrote:
> On Wed, Aug 12, 2015 at 09:01:02AM -0700, Linus Torvalds wrote:
>> I'm assuming that anybody who wants to use the page-less
>> scatter-gather lists always does so on memory that isn't actually
>> virtually mapped at all, or only does so on sane architectures that
>> are cache coherent at a physical level, but I'd like that assumption
>> *documented* somewhere.
>
> It's temporarily mapped by kmap-like helpers.  That code isn't in
> this series. The most recent version of it is here:
>
> https://git.kernel.org/cgit/linux/kernel/git/djbw/nvdimm.git/commit/?h=pfn&id=de8237c99fdb4352be2193f3a7610e902b9bb2f0
>
> note that it's not doing the cache flushing it would have to do yet, but
> it's also only enabled for x86 at the moment.

For virtually tagged caches I assume we would temporarily map with
kmap_atomic_pfn_t(), similar to how drm_clflush_pages() implements
powerpc support.  However with DAX we could end up with multiple
virtual aliases for a page-less pfn.
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH 29/31] parisc: handle page-less SG entries
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To: Dan Williams <dan.j.williams@intel.com>
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On Thu, 2015-08-13 at 20:30 -0700, Dan Williams wrote:
> On Thu, Aug 13, 2015 at 7:31 AM, Christoph Hellwig <hch@lst.de> wrote:
> > On Wed, Aug 12, 2015 at 09:01:02AM -0700, Linus Torvalds wrote:
> >> I'm assuming that anybody who wants to use the page-less
> >> scatter-gather lists always does so on memory that isn't actually
> >> virtually mapped at all, or only does so on sane architectures that
> >> are cache coherent at a physical level, but I'd like that assumption
> >> *documented* somewhere.
> >
> > It's temporarily mapped by kmap-like helpers.  That code isn't in
> > this series. The most recent version of it is here:
> >
> > https://git.kernel.org/cgit/linux/kernel/git/djbw/nvdimm.git/commit/?h=pfn&id=de8237c99fdb4352be2193f3a7610e902b9bb2f0
> >
> > note that it's not doing the cache flushing it would have to do yet, but
> > it's also only enabled for x86 at the moment.
> 
> For virtually tagged caches I assume we would temporarily map with
> kmap_atomic_pfn_t(), similar to how drm_clflush_pages() implements
> powerpc support.  However with DAX we could end up with multiple
> virtual aliases for a page-less pfn.

At least on some PA architectures, you have to be very careful.
Improperly managed, multiple aliases will cause the system to crash
(actually a machine check in the cache chequerboard). For the most
temperamental systems, we need the cache line flushed and the alias
mapping ejected from the TLB cache before we access the same page at an
inequivalent alias.

James


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From - Thu Nov 08 21:37:47 2018
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Subject: Re: [PATCH 29/31] parisc: handle page-less SG entries
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Thu, 13 Aug 2015 20:59:20 -0700

> On Thu, 2015-08-13 at 20:30 -0700, Dan Williams wrote:
>> On Thu, Aug 13, 2015 at 7:31 AM, Christoph Hellwig <hch@lst.de> wrote:
>> > On Wed, Aug 12, 2015 at 09:01:02AM -0700, Linus Torvalds wrote:
>> >> I'm assuming that anybody who wants to use the page-less
>> >> scatter-gather lists always does so on memory that isn't actually
>> >> virtually mapped at all, or only does so on sane architectures that
>> >> are cache coherent at a physical level, but I'd like that assumption
>> >> *documented* somewhere.
>> >
>> > It's temporarily mapped by kmap-like helpers.  That code isn't in
>> > this series. The most recent version of it is here:
>> >
>> > https://git.kernel.org/cgit/linux/kernel/git/djbw/nvdimm.git/commit/?h=pfn&id=de8237c99fdb4352be2193f3a7610e902b9bb2f0
>> >
>> > note that it's not doing the cache flushing it would have to do yet, but
>> > it's also only enabled for x86 at the moment.
>> 
>> For virtually tagged caches I assume we would temporarily map with
>> kmap_atomic_pfn_t(), similar to how drm_clflush_pages() implements
>> powerpc support.  However with DAX we could end up with multiple
>> virtual aliases for a page-less pfn.
> 
> At least on some PA architectures, you have to be very careful.
> Improperly managed, multiple aliases will cause the system to crash
> (actually a machine check in the cache chequerboard). For the most
> temperamental systems, we need the cache line flushed and the alias
> mapping ejected from the TLB cache before we access the same page at an
> inequivalent alias.

Also, I want to mention that on sparc64 we manage the cache aliasing
state in the page struct.

Until a page is mapped into userspace, we just record the most recent
cpu to store into that page with kernel side mappings.  Once the page
ends up being mapped or the cpu doing kernel side stores changes, we
actually perform the cache flush.

Generally speaking, I think that all actual physical memory the kernel
operates on should have a struct page backing it.  So this whole
discussion of operating on physical memory in scatter lists without
backing page structs feels really foreign to me.
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> > Tried 4.2.0-rc3-00246-g763e326 on A500 but it crashes on boot. This is 
> > still present in todays 4.2.0-rc6+git. 4.1 was fine, I Will bisect but 
> > it takes time.
> 
> This is probably a hpmc.  Could you look at SL event log?  It should show address of
> the hpmc.  Then, look at kernel image with objdump and search for address.  This should
> show where crash occurred and it might give a clue as to the cause.

SL errors from last boot that failed are below - how can I decode it 
further, I find no addresses here? All these errors only happen on 
problematic boot, none of these happen on 4.1.0 boot.

Log Entry #   0 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:18
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 8 = I/O 
SOURCE DETAIL: 6 = disk   SOURCE ID: 0
PROBLEM DETAIL: 3 = functional failure

CALLER ACTIVITY: 6 = machine check   STATUS: 0
CALLER SUBACTIVITY: 20 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x0000002386006200 00000000 00000000 type  0 = Data Field Unused
0x5800082386006200 00007307 0E052412 type 11 = Timestamp 08/14/2015 05:36:18


Log Entry #   1 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:18
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 8 = I/O 
SOURCE DETAIL: 9 = serial   SOURCE ID: 0
PROBLEM DETAIL: 3 = functional failure

CALLER ACTIVITY: 6 = machine check   STATUS: 0
CALLER SUBACTIVITY: 20 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x0000002389006200 00000000 00000000 type  0 = Data Field Unused
0x5800082389006200 00007307 0E052412 type 11 = Timestamp 08/14/2015 05:36:18

Log Entry #   2 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:17
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 8 = I/O 
SOURCE DETAIL: 2 = system bus adapter   SOURCE ID: 6
PROBLEM DETAIL: 3 = function failure

CALLER ACTIVITY: 6 = machine check   STATUS: 3
CALLER SUBACTIVITY: 34 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x7000002382066343 00000000 00070200 type 14 = Problem Detail
0x5800082382066343 00007307 0E052411 type 11 = Timestamp 08/14/2015 05:36:17


Log Entry #   3 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:17
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 8 = I/O 
SOURCE DETAIL: 2 = system bus adapter   SOURCE ID: 4
PROBLEM DETAIL: 3 = function failure

CALLER ACTIVITY: 6 = machine check   STATUS: 3
CALLER SUBACTIVITY: 34 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x7000002382046343 00000000 00070200 type 14 = Problem Detail
0x5800082382046343 00007307 0E052411 type 11 = Timestamp 08/14/2015 05:36:17


Log Entry #   4 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:17
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 8 = I/O 
SOURCE DETAIL: 2 = system bus adapter   SOURCE ID: 2
PROBLEM DETAIL: 3 = function failure

CALLER ACTIVITY: 6 = machine check   STATUS: 3
CALLER SUBACTIVITY: 34 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x7000002382026343 00000000 00070200 type 14 = Problem Detail
0x5800082382026343 00007307 0E052411 type 11 = Timestamp 08/14/2015 05:36:17


Log Entry #   5 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:17
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 8 = I/O 
SOURCE DETAIL: 2 = system bus adapter   SOURCE ID: 0
PROBLEM DETAIL: 3 = function failure

CALLER ACTIVITY: 6 = machine check   STATUS: 3
CALLER SUBACTIVITY: 34 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x7000002382006343 00000000 00070200 type 14 = Problem Detail
0x5800082382006343 00007307 0E052411 type 11 = Timestamp 08/14/2015 05:36:17



Log Entry #   6 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:17
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 40 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x0000002000FF6402 00000000 00000000 type  0 = Data Field Unused
0x5800082000FF6402 00007307 0E052411 type 11 = Timestamp 08/14/2015 05:36:17


Log Entry #   7 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:17
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 45 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x0000002000FF6452 00000000 00000000 type  0 = Data Field Unused
0x5800082000FF6452 00007307 0E052411 type 11 = Timestamp 08/14/2015 05:36:17


Log Entry #   8 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:15
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 7 = memory
SOURCE DETAIL: 9 = unexpected   SOURCE ID: 0
PROBLEM DETAIL: 3 = unexpected

CALLER ACTIVITY: 6 = machine check   STATUS: 3
CALLER SUBACTIVITY: 13 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x7000002379006133 C1BFF0FF FED08040 type 14 = Problem Detail
0x5800082379006133 00007307 0E05240F type 11 = Timestamp 08/14/2015 05:36:15


Log Entry #   9 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:15
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 7 = memory
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 08 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x7000002070006082 00000000 00B92400 type 14 = Problem Detail
0x5800082070006082 00007307 0E05240F type 11 = Timestamp 08/14/2015 05:36:15


Log Entry #  10 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:15
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 7 = memory
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 06 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x6000002070006062 00000000 00100010 type 12 = Device Status
0x5800082070006062 00007307 0E05240F type 11 = Timestamp 08/14/2015 05:36:15


Log Entry #  11 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:14
ALERT LEVEL: 7 = reserved

SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 29 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x0000007000FF6292 00000000 00000000 type  0 = Data Field Unused
0x5800087000FF6292 00007307 0E05240E type 11 = Timestamp 08/14/2015 05:36:14


Log Entry #  12 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:14
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 1 = processor
SOURCE DETAIL: 1 = processor general   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 31 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x1800002011006312 CB810000 00000000 type  3 = Actual Data
0x5800082011006312 00007307 0E05240E type 11 = Timestamp 08/14/2015 05:36:14


Log Entry #  13 :
SYSTEM NAME: a500-m
DATE: 08/14/2015 TIME: 05:36:14
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 24 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x0000002000FF6242 00000000 00000000 type  0 = Data Field Unused
0x5800082000FF6242 00007307 0E05240E type 11 = Timestamp 08/14/2015 05:36:14




-- 
Meelis Roos (mroos@linux.ee)
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Subject: Re: A500 boot crash in 4.2.0-rc3-00246-g763e326
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On 2015-08-14, at 2:35 AM, Meelis Roos wrote:

> SL errors from last boot that failed are below - how can I decode it 
> further, I find no addresses here? All these errors only happen on 
> problematic boot, none of these happen on 4.1.0 boot.

It's some time since I looked at an A500 long.  On rp3440, there is a text, "T', mode that's
easier for humans.  I usually go to the end of the long with 'L' first.

Dave
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John David Anglin	dave.anglin@bell.net



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On Thu, Aug 13, 2015 at 9:11 PM, David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org> wrote:
> From: James Bottomley <James.Bottomley-d9PhHud1JfjCXq6kfMZ53/egYHeGw8Jk@public.gmane.org>
>> At least on some PA architectures, you have to be very careful.
>> Improperly managed, multiple aliases will cause the system to crash
>> (actually a machine check in the cache chequerboard). For the most
>> temperamental systems, we need the cache line flushed and the alias
>> mapping ejected from the TLB cache before we access the same page at an
>> inequivalent alias.
>
> Also, I want to mention that on sparc64 we manage the cache aliasing
> state in the page struct.
>
> Until a page is mapped into userspace, we just record the most recent
> cpu to store into that page with kernel side mappings.  Once the page
> ends up being mapped or the cpu doing kernel side stores changes, we
> actually perform the cache flush.
>
> Generally speaking, I think that all actual physical memory the kernel
> operates on should have a struct page backing it.  So this whole
> discussion of operating on physical memory in scatter lists without
> backing page structs feels really foreign to me.

So the only way for page-less pfns to enter the system is through the
->direct_access() method provided by a pmem device's struct
block_device_operations.  Architectures that require struct page for
cache management to must disable ->direct_access() in this case.

If an arch still wants to support pmem+DAX then it needs something
like this patchset (feedback welcome) to map pmem pfns:

https://lkml.org/lkml/2015/8/12/970

Effectively this would disable ->direct_access() on /dev/pmem0, but
permit ->direct_access() on /dev/pmem0m.

From - Thu Nov 08 21:37:47 2018
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From: Graham Gower <graham.gower@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: bad address in handle_percpu_irq
Date: Sun, 16 Aug 2015 16:14:14 +0930
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Hi,

I'm seeing the panic below on a c8000. It happens sometimes when booting, just
before the login prompt is to appear. I've seen it with older kernels too, going
back to at least 3.19.

-Graham


[   62.596000] Backtrace:
[   62.596000]  [<00000000401fdb60>] handle_percpu_irq+0xb0/0xf0
[   62.596000]  [<00000000401f7894>] generic_handle_irq+0x4c/0x68
[   62.596000]  [<0000000040177670>] execute_on_irq_stack+0x90/0xa8
[   62.596000]  [<0000000040178574>] do_cpu_irq_mask+0x1ec/0x3e0
[   62.596000]  [<0000000040164074>] intr_return+0x0/0xc
[   62.596000]
[   62.596000]
[   62.596000] Bad Address (null pointer deref?): Code=26 regs=0000000042a0a070 (Addr=0000000000000000)
[   62.596000] CPU: 0 PID: 444 Comm: (agetty) Not tainted 4.1.0-1-parisc64-smp #1 Debian 4.1.3-1
[   62.596000] task: 000000007a9a7538 ti: 000000007dc38000 task.ti: 000000007dc38000
[   62.596000]
[   62.596000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   62.596000] PSW: 00001000000001001111111100001110 Not tainted
[   62.596000] r00-03  000000ff0804ff0e 00000000408b8f30 00000000401fdb60 0000000042a09f80
[   62.596000] r04-07  000000004089ff30 0000000000000000 0000000000000000 0000000000000000
[   62.596000] r08-11  0000000042a0a040 000000000000004c 0000000040932d40 000000000000004c
[   62.596000] r12-15  000000000000004c 0000000000000001 00000000408d4f30 0000000000000001
[   62.596000] r16-19  00000000408b8f30 00000000408b8f30 0000000000000202 00000000028b3000
[   62.596000] r20-23  0000000042a0d020 bff7ffffffffffff 0000000040948420 fffc000000000000
[   62.596000] r24-27  0000000042a099d0 0000000000000000 0000000040932d40 000000004089ff30
[   62.596000] r28-31  0008000000000000 0000000042a09f50 0000000042a0a070 bff4000000000000
[   62.596000] sr00-03  000000000013f800 0000000000000000 0000000000000000 000000000013b000
[   62.596000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[   62.596000]
[   62.596000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401f861c 00000000401f8620
[   62.596000]  IIR: 0ca010dc    ISR: 0000000000000000  IOR: 0000000000000000
[   62.596000]  CPU:        0   CR30: 000000007dc38000 CR31: ffffffffdbfeffff
[   62.596000]  ORIG_R28: 0000000040948420
[   62.596000]  IAOQ[0]: handle_irq_event_percpu+0x8c/0x250
[   62.596000]  IAOQ[1]: handle_irq_event_percpu+0x90/0x250
[   62.596000]  RP(r2): handle_percpu_irq+0xb0/0xf0
[   62.596000] Backtrace:
[   62.596000]  [<00000000401fdb60>] handle_percpu_irq+0xb0/0xf0
[   62.596000]  [<00000000401f7894>] generic_handle_irq+0x4c/0x68
[   62.596000]  [<0000000040177670>] execute_on_irq_stack+0x90/0xa8
[   62.596000]  [<0000000040178574>] do_cpu_irq_mask+0x1ec/0x3e0
[   62.596000]  [<0000000040164074>] intr_return+0x0/0xc
[   62.596000]
<Cpu0> 0300109100e00000  0000000000000000  CC_PROCS_ENTRY_OUT
[   62.596000] Kernel panic - not syncing: Bad Address (null pointer deref?)
<Cpu0> 78000c6200e00000  a0e008c01100b009  CC_PAT_ENCODED_FIELD_WARNING
<Cpu0> 76000c6800e00000  0000000000000520  CC_PAT_DATA_FIELD_WARNING
<Cpu0> 0300109100e00000  0000000000000000  CC_PROCS_ENTRY_OUT
[   62.596000] ---[ end Kernel panic - not syncing: Bad Address (null pointer deref?)


Full dmesg from a successful boot.

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 4.1.0-1-parisc64-smp (debian-kernel@lists.debian.org) (gcc version 4.9.3 (GCC) ) #1 SMP Debian 4.1.3-1 (2015-08-03)
[    0.000000] unwind_init: start = 0x408d6650, end = 0x4091f6c0, entries = 18695
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] Default page size is 4KB.
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 000088a0 00000491 00000000 00000002 567eef09b2675bcf 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000301
[    0.000000] CPUID vers 20 rev 4 (0x00000284)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/785/C8000
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000000100000000 End 0x00000001ffdfffff Size   4094 MB
[    0.000000]  2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
[    0.000000] Total Memory: 8190 MB
[    0.000000] initrd: 7eee8000-7ffedc68
[    0.000000] initrd: reserving 3eee8000-3ffedc68 (mem_max 1ffe00000)
[    0.000000] On node 0 totalpages: 262144
[    0.000000] free_area_init_node: node 0, pgdat 40936a40, node_mem_map 41a00000
[    0.000000]   Normal zone: 4096 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 262144 pages, LIFO batch:31
[    0.000000] On node 1 totalpages: 1048064
[    0.000000] free_area_init_node: node 1, pgdat 40937800, node_mem_map 140000000
[    0.000000]   Normal zone: 16376 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 1048064 pages, LIFO batch:31
[    0.000000] On node 2 totalpages: 786432
[    0.000000] free_area_init_node: node 2, pgdat 409385c0, node_mem_map 4080000000
[    0.000000]   Normal zone: 12288 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 786432 pages, LIFO batch:31
[    0.000000] PERCPU: Embedded 19 pages/cpu @0000000042a09000 s37632 r8192 d32000 u77824
[    0.000000] pcpu-alloc: s37632 r8192 d32000 u77824 alloc=19*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 [0] 4 [0] 5 [0] 6 [0] 7 
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 2063880
[    0.000000] Kernel command line: root=UUID=47254bb5-1fd8-4d2f-9940-c0507cb05fa5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[    0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.000000] Sorting __ex_table...
[    0.000000] Memory: 8198520K/8386560K available (5760K kernel code, 1872K rwdata, 1167K rodata, 384K init, 671K bss, 188040K reserved, 0K cma-reserved)
[    0.000000] virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x0000004140000000   (266240 MB)
      .init : 0x0000000040100000 - 0x0000000040160000   ( 384 kB)
      .data : 0x0000000040700000 - 0x00000000409f81f0   (3040 kB)
      .text : 0x0000000040160000 - 0x0000000040700000   (5760 kB)
[    0.000000] Hierarchical RCU implementation.
[    0.000000] 	CONFIG_RCU_FANOUT set to non-default value of 32
[    0.000000] NR_IRQS:128
[    0.000000] clocksource cr16: mask: 0xffffffffffffffff max_cycles: 0xcf914c9718, max_idle_ns: 440795231327 ns
[    0.128000] Console: colour dummy device 160x64
[    0.188000] Calibrating delay loop... 1795.07 BogoMIPS (lpj=3590144)
[    0.296000] pid_max: default: 32768 minimum: 301
[    0.356000] Security Framework initialized
[    0.408000] AppArmor: AppArmor disabled by boot time parameter
[    0.488000] Yama: disabled by default; enable with sysctl kernel.yama.*
[    0.576000] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
[    0.664000] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes)
[    0.764000] Initializing cgroup subsys blkio
[    0.820000] Initializing cgroup subsys memory
[    0.876000] Initializing cgroup subsys devices
[    0.936000] Initializing cgroup subsys freezer
[    0.992000] Initializing cgroup subsys net_cls
[    1.052000] Initializing cgroup subsys perf_event
[    1.112000] Initializing cgroup subsys net_prio
[    1.176000] Brought up 1 CPUs
[    1.216000] devtmpfs: initialized
[    1.260000] clocksource jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    1.400000] NET: Registered protocol family 16
[    1.460000] EISA bus registered
[    1.500000] Searching for devices...
[    1.648000] Found devices:
[    1.684000] 1. Crestone Peak Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x88a, 0x00004 }
[    1.792000] 2. Crestone Peak Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x88a, 0x00004 }
[    1.896000] 3. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0b6, 0x00009 }
[    1.988000] 4. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
[    2.100000] 5. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
[    2.208000] 6. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
[    2.316000] 7. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
[    2.420000] 8. Quicksilver AGP Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x784, 0x0000a }
[    2.536000] 9. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
[    2.640000] 10. Crestone Peak Core RS-232 at 0xfffffff0f05e0000 [17] { 10, 0x0, 0x076, 0x000ad }
[    2.756000] 11. Crestone Peak Core RS-232 at 0xfffffff0f05e2000 [18] { 10, 0x0, 0x076, 0x000ad }
[    2.872000] Enabling PDC_PAT chassis codes support v0.05
[    3.796000] Releasing cpu 1 now, hpa=fffffffffe781000
[    4.224000] FP[1] enabled: Rev 1 Model 20
[    4.228000] CPU(s): 2 out of 2 PA8800 (Mako) at 900.000000 MHz online
[    4.372000] Whole cache flush 4255702 cycles, flushing 9702864 bytes 1092542 cycles
[    4.372000] Setting cache flush threshold to 2000000 (2 CPUs online)
[    4.596000] SBA found Pluto 2.3 at 0xfffffffffed00000
[    4.728000] sba_ioc_init_pluto: reserving 512Mb of IOVA space for agpgart
[    4.832000] Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
[    4.940000] LBA: lmmio_space [0xffffffff80000000-0xffffffff9fffffff] - new
[    5.052000] LBA 0:0: PCI host bridge to bus 0000:00
[    5.116000] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    5.196000] pci_bus 0000:00: root bus resource [mem 0xffffffff80000000-0xffffffff9fffffff] (bus address [0x80000000-0x9fffffff])
[    5.348000] pci_bus 0000:00: root bus resource [mem 0xffffff0000000000-0xffffff0fffffffff]
[    5.456000] pci_bus 0000:00: root bus resource [bus 00-07]
[    5.532000] pci 0000:00:01.0: [1095:3124] type 00 class 0x010400
[    5.532000] pci 0000:00:01.0: reg 0x10: [mem 0xffffffff80088000-0xffffffff8008807f 64bit]
[    5.532000] pci 0000:00:01.0: reg 0x18: [mem 0xffffffff80080000-0xffffffff80087fff 64bit]
[    5.532000] pci 0000:00:01.0: reg 0x20: [io  0x0d00-0x0d0f]
[    5.532000] pci 0000:00:01.0: reg 0x30: [mem 0xffffffff80000000-0xffffffff8007ffff pref]
[    5.532000] pci 0000:00:01.0: supports D1 D2
[    5.544000] Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
[    5.672000] LBA 0:2: PCI host bridge to bus 0000:40
[    5.736000] pci_bus 0000:40: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
[    5.856000] pci_bus 0000:40: root bus resource [mem 0xffffffffa0000000-0xffffffffafffffff] (bus address [0xa0000000-0xafffffff])
[    6.008000] pci_bus 0000:40: root bus resource [mem 0xffffff2000000000-0xffffff2fffffffff]
[    6.116000] pci_bus 0000:40: root bus resource [bus 40-47]
[    6.188000] pci 0000:40:01.0: [1000:0030] type 00 class 0x010000
[    6.188000] pci 0000:40:01.0: reg 0x10: [io  0x14100-0x141ff]
[    6.188000] pci 0000:40:01.0: reg 0x14: [mem 0xffffffffa0260000-0xffffffffa027ffff 64bit]
[    6.188000] pci 0000:40:01.0: reg 0x1c: [mem 0xffffffffa0240000-0xffffffffa025ffff 64bit]
[    6.188000] pci 0000:40:01.0: reg 0x30: [mem 0xffffffffa0100000-0xffffffffa01fffff pref]
[    6.188000] pci 0000:40:01.0: supports D1 D2
[    6.188000] pci 0000:40:01.1: [1000:0030] type 00 class 0x010000
[    6.188000] pci 0000:40:01.1: reg 0x10: [io  0x14000-0x140ff]
[    6.188000] pci 0000:40:01.1: reg 0x14: [mem 0xffffffffa0220000-0xffffffffa023ffff 64bit]
[    6.188000] pci 0000:40:01.1: reg 0x1c: [mem 0xffffffffa0200000-0xffffffffa021ffff 64bit]
[    6.188000] pci 0000:40:01.1: reg 0x30: [mem 0xffffffffa0000000-0xffffffffa00fffff pref]
[    6.188000] pci 0000:40:01.1: supports D1 D2
[    6.204000] Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
[    6.332000] LBA 0:3: PCI host bridge to bus 0000:60
[    6.396000] pci_bus 0000:60: root bus resource [io  0x20000-0x2ffff] (bus address [0x0000-0xffff])
[    6.512000] pci_bus 0000:60: root bus resource [mem 0xffffffffb0000000-0xffffffffbfffffff] (bus address [0xb0000000-0xbfffffff])
[    6.668000] pci_bus 0000:60: root bus resource [mem 0xffffff3000000000-0xffffff3fffffffff]
[    6.776000] pci_bus 0000:60: root bus resource [bus 60-67]
[    6.848000] pci 0000:60:01.0: [1033:0035] type 00 class 0x0c0310
[    6.848000] pci 0000:60:01.0: reg 0x10: [mem 0xffffffffb00a3000-0xffffffffb00a3fff]
[    6.848000] pci 0000:60:01.0: supports D1 D2
[    6.848000] pci 0000:60:01.0: PME# supported from D0 D1 D2 D3hot
[    6.848000] pci 0000:60:01.1: [1033:0035] type 00 class 0x0c0310
[    6.848000] pci 0000:60:01.1: reg 0x10: [mem 0xffffffffb00a2000-0xffffffffb00a2fff]
[    6.848000] pci 0000:60:01.1: supports D1 D2
[    6.848000] pci 0000:60:01.1: PME# supported from D0 D1 D2 D3hot
[    6.848000] pci 0000:60:01.2: [1033:00e0] type 00 class 0x0c0320
[    6.848000] pci 0000:60:01.2: reg 0x10: [mem 0xffffffffb00a1000-0xffffffffb00a10ff]
[    6.848000] pci 0000:60:01.2: supports D1 D2
[    6.848000] pci 0000:60:01.2: PME# supported from D0 D1 D2 D3hot
[    6.848000] pci 0000:60:02.0: [1095:0680] type 00 class 0x010185
[    6.848000] pci 0000:60:02.0: reg 0x10: [io  0x27058-0x2705f]
[    6.848000] pci 0000:60:02.0: reg 0x14: [io  0x27064-0x27067]
[    6.848000] pci 0000:60:02.0: reg 0x18: [io  0x27050-0x27057]
[    6.848000] pci 0000:60:02.0: reg 0x1c: [io  0x27060-0x27063]
[    6.848000] pci 0000:60:02.0: reg 0x20: [io  0x27040-0x2704f]
[    6.848000] pci 0000:60:02.0: reg 0x24: [mem 0xffffffffb00a0000-0xffffffffb00a00ff]
[    6.848000] pci 0000:60:02.0: reg 0x30: [mem 0xffffffffb0000000-0xffffffffb007ffff pref]
[    6.848000] pci 0000:60:02.0: supports D1 D2
[    6.848000] pci 0000:60:03.0: [8086:100e] type 00 class 0x020000
[    6.848000] pci 0000:60:03.0: reg 0x10: [mem 0xffffffffb0080000-0xffffffffb009ffff]
[    6.848000] pci 0000:60:03.0: reg 0x18: [io  0x27000-0x2703f]
[    6.848000] pci 0000:60:03.0: PME# supported from D0 D3hot D3cold
[    6.848000] pci 0000:60:04.0: [131f:2000] type 00 class 0x070002
[    6.848000] pci 0000:60:04.0: reg 0x10: [io  0x26000-0x26007]
[    6.864000] Quicksilver version TR1.0 (0x10) found at 0xfffffffffed28000
[    6.976000] LBA: lmmio_space [0xffffffffc0000000-0xffffffffdfffffff] - new
[    7.088000] LBA 0:4: PCI host bridge to bus 0000:80
[    7.152000] pci_bus 0000:80: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0xffff])
[    7.268000] pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffdfffffff] (bus address [0xc0000000-0xdfffffff])
[    7.424000] pci_bus 0000:80: root bus resource [mem 0xffffff4000000000-0xffffff4fffffffff]
[    7.532000] pci_bus 0000:80: root bus resource [bus 80-87]
[    7.604000] pci 0000:80:00.0: [10de:00f1] type 00 class 0x030000
[    7.604000] pci 0000:80:00.0: reg 0x10: [mem 0xffffffffd1000000-0xffffffffd1ffffff]
[    7.604000] pci 0000:80:00.0: reg 0x14: [mem 0xffffffffc0000000-0xffffffffcfffffff pref]
[    7.604000] pci 0000:80:00.0: reg 0x18: [mem 0xffffffffd0000000-0xffffffffd0ffffff]
[    7.604000] pci 0000:80:00.0: reg 0x30: [mem 0xffffffffd2000000-0xffffffffd201ffff pref]
[    8.012000] powersw: Soft power switch at 0xfffffff0f042e278 enabled.
[    8.124000] vgaarb: setting as boot device: PCI:0000:80:00.0
[    8.124000] vgaarb: device added: PCI:0000:80:00.0,decodes=io+mem,owns=io+mem,locks=none
[    8.308000] vgaarb: loaded
[    8.340000] vgaarb: bridge control possible 0000:80:00.0
[    8.416000] NET: Registered protocol family 2
[    8.476000] TCP established hash table entries: 65536 (order: 7, 524288 bytes)
[    8.572000] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    8.664000] TCP: Hash tables configured (established 65536 bind 65536)
[    8.748000] UDP hash table entries: 4096 (order: 5, 131072 bytes)
[    8.828000] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes)
[    8.928000] NET: Registered protocol family 1
[    8.988000] PCI: CLS 64 bytes
[    9.136000] Unpacking initramfs...
[   10.168000] Freeing initrd memory: 17428K (000000007eee8000 - 000000007ffed000)
[   10.264000] Chassis warnings not supported.
[   10.320000] Performance monitoring counters enabled for Crestone Peak Slow
[   10.412000] futex hash table entries: 2048 (order: 5, 131072 bytes)
[   10.496000] audit: initializing netlink subsys (disabled)
[   10.564000] audit: type=2000 audit(1439706958.564:1): initialized
[   10.648000] zpool: loaded
[   10.684000] VFS: Disk quotas dquot_6.6.0
[   10.736000] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[   10.828000] alg: No test for stdrng (krng)
[   10.880000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[   10.980000] io scheduler noop registered
[   11.032000] io scheduler deadline registered
[   11.088000] io scheduler cfq registered (default)
[   11.152000] PDC Stable Storage facility v0.30
[   11.252000] STI GSC/PCI core graphics driver Version 0.9b
[   11.324000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[   11.420000] console [ttyS0] disabled
[   11.488000] 17: ttyS0 at MMIO 0xfffffff0f05e0800 (irq = 76, base_baud = 115200) is a 16550A
[   11.600000] console [ttyS0] enabled
[   11.688000] bootconsole [ttyB0] disabled
[   11.820000] 18: ttyS1 at MMIO 0xfffffff0f05e2800 (irq = 77, base_baud = 115200) is a 16550A
[   11.940000] 0000:60:04.0: ttyS2 at I/O 0x26000 (irq = 74, base_baud = 921600) is a 16550A
[   12.040000] Linux agpgart interface v0.103
[   12.088000] quicksilver: IO PDIR shared with sba_iommu
[   12.164000]  (null): AGP aperture is 512M @ 0x60000000
[   12.228000] [drm] Initialized drm 1.1.0 20060810
[   12.284000] mousedev: PS/2 mouse device common for all mice
[   12.356000] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[   12.444000] ledtrig-cpu: registered to indicate activity on CPUs
[   12.516000] NET: Registered protocol family 10
[   12.568000] mip6: Mobile IPv6
[   12.604000] NET: Registered protocol family 17
[   12.656000] mpls_gso: MPLS GSO support
[   12.704000] registered taskstats version 1
[   12.760000] rtc-generic rtc-generic: setting system clock to 2015-08-16 06:36:01 UTC (1439706961)
[   12.880000] Freeing unused kernel memory: 384K (0000000040100000 - 0000000040160000)
[   13.700000] systemd-udevd[64]: starting version 215
[   13.760000] random: systemd-udevd urandom read with 55 bits of entropy available
[   14.204000] SCSI subsystem initialized
[   14.752000] usbcore: registered new interface driver usbfs
[   14.752000] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[   14.752000] e1000: Copyright (c) 1999-2006 Intel Corporation.
[   14.988000] Fusion MPT base driver 3.04.20
[   15.044000] Copyright (c) 1999-2008 LSI Corporation
[   15.224000] libata version 3.00 loaded.
[   15.332000] sata_sil24 0000:00:01.0: version 1.1
[   15.384000] sata_sil24 0000:00:01.0: Applying completion IRQ loss on PCI-X errata fix
[   15.652000] usbcore: registered new interface driver hub
[   15.724000] usbcore: registered new device driver usb
[   15.796000] scsi host0: sata_sil24
[   15.840000] scsi host1: sata_sil24
[   16.004000] e1000 0000:60:03.0 eth0: (PCI:33MHz:32-bit) 00:30:6e:f3:5f:10
[   16.096000] e1000 0000:60:03.0 eth0: Intel(R) PRO/1000 Network Connection
[   16.248000] scsi host2: sata_sil24
[   16.332000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[   16.560000] scsi host3: sata_sil24
[   16.560000] pata_sil680 0000:60:02.0: version 0.4.9
[   16.560000] sil680: 133MHz clock.
[   16.604000] scsi host4: pata_sil680
[   16.764000] scsi host5: pata_sil680
[   16.772000] Fusion MPT SPI Host driver 3.04.20
[   16.948000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[   17.032000] ata5: PATA max UDMA/133 cmd 0x27058 ctl 0x27064 bmdma 0x27040 irq 72
[   17.036000] mptbase: ioc0: Initiating bringup
[   17.036000] ata1: SATA max UDMA/100 host m128@0xffffffff80088000 port 0xffffffff80080000 irq 66
[   17.036000] ata2: SATA max UDMA/100 host m128@0xffffffff80088000 port 0xffffffff80082000 irq 66
[   17.036000] ata3: SATA max UDMA/100 host m128@0xffffffff80088000 port 0xffffffff80084000 irq 66
[   17.036000] ata4: SATA max UDMA/100 host m128@0xffffffff80088000 port 0xffffffff80086000 irq 66
[   17.036000] ehci-pci: EHCI PCI platform driver
[   17.688000] ata6: PATA max UDMA/133 cmd 0x27050 ctl 0x27060 bmdma 0x27048 irq 72
[   17.836000] ehci-pci 0000:60:01.2: EHCI Host Controller
[   17.900000] ehci-pci 0000:60:01.2: new USB bus registered, assigned bus number 1
[   17.988000] ehci-pci 0000:60:01.2: irq 71, io mem 0xffffffffb00a1000
[   18.076000] ehci-pci 0000:60:01.2: USB 2.0 started, EHCI 0.95
[   18.144000] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[   18.224000] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   18.312000] usb usb1: Product: EHCI Host Controller
[   18.368000] usb usb1: Manufacturer: Linux 4.1.0-1-parisc64-smp ehci_hcd
[   18.448000] usb usb1: SerialNumber: 0000:60:01.2
[   18.504000] hub 1-0:1.0: USB hub found
[   18.552000] hub 1-0:1.0: 5 ports detected
[   18.772000] ohci-pci: OHCI PCI platform driver
[   18.836000] ohci-pci 0000:60:01.0: OHCI PCI host controller
[   18.904000] ohci-pci 0000:60:01.0: new USB bus registered, assigned bus number 2
[   18.992000] ohci-pci 0000:60:01.0: irq 69, io mem 0xffffffffb00a3000
[   19.124000] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
[   19.204000] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   19.292000] usb usb2: Product: OHCI PCI host controller
[   19.352000] usb usb2: Manufacturer: Linux 4.1.0-1-parisc64-smp ohci_hcd
[   19.392000] ioc0: LSI53C1030 B2: Capabilities={Initiator,Target}
[   19.504000] usb usb2: SerialNumber: 0000:60:01.0
[   19.560000] hub 2-0:1.0: USB hub found
[   19.608000] hub 2-0:1.0: 3 ports detected
[   19.668000] ohci-pci 0000:60:01.1: OHCI PCI host controller
[   19.736000] ohci-pci 0000:60:01.1: new USB bus registered, assigned bus number 3
[   19.824000] ata1: SATA link down (SStatus 0 SControl 0)
[   19.888000] ohci-pci 0000:60:01.1: irq 70, io mem 0xffffffffb00a2000
[   20.020000] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
[   20.100000] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   20.188000] usb usb3: Product: OHCI PCI host controller
[   20.196000] scsi host6: ioc0: LSI53C1030 B2, FwRev=01030f00h, Ports=1, MaxQ=255, IRQ=67
[   20.344000] usb usb3: Manufacturer: Linux 4.1.0-1-parisc64-smp ohci_hcd
[   20.424000] usb usb3: SerialNumber: 0000:60:01.1
[   20.480000] hub 3-0:1.0: USB hub found
[   20.524000] hub 3-0:1.0: 2 ports detected
[   20.844000] mptbase: ioc1: Initiating bringup
[   21.376000] ioc1: LSI53C1030 B2: Capabilities={Initiator,Target}
[   21.936000] scsi host7: ioc1: LSI53C1030 B2, FwRev=01030f00h, Ports=1, MaxQ=255, IRQ=68
[   22.032000] ata2: SATA link down (SStatus 0 SControl 0)
[   23.496000] scsi 6:0:5:0: Direct-Access     HP 73.4G ST373454LW       HPC2 PQ: 0 ANSI: 3
[   23.592000] scsi target6:0:5: Beginning Domain Validation
[   23.676000] scsi target6:0:5: Ending Domain Validation
[   23.740000] scsi target6:0:5: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW PCOMP (6.25 ns, offset 63)
[   23.860000] scsi 6:0:6:0: Direct-Access     HP 73.4G ST373454LW       HPC2 PQ: 0 ANSI: 3
[   23.956000] scsi target6:0:6: Beginning Domain Validation
[   24.040000] scsi target6:0:6: Domain Validation skipping write tests
[   24.116000] scsi target6:0:6: Ending Domain Validation
[   24.176000] scsi target6:0:6: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW PCOMP (6.25 ns, offset 63)
[   24.176000] ata3: SATA link down (SStatus 0 SControl 0)
[   25.372000] random: nonblocking pool is initialized
[   26.388000] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 0)
[   26.460000] ata4.00: ATA-9: Samsung SSD 840 PRO Series, DXM05B0Q, max UDMA/133
[   26.548000] ata4.00: 250069680 sectors, multi 16: LBA48 NCQ (depth 31/32)
[   26.628000] ata4.00: configured for UDMA/100
[   26.680000] scsi: waiting for bus probes to complete ...
[   26.744000] scsi 3:0:0:0: Direct-Access     ATA      Samsung SSD 840  5B0Q PQ: 0 ANSI: 5
[   27.252000] ata4.00: Enabling discard_zeroes_data
[   27.316000] sd 6:0:5:0: [sda] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)
[   27.476000] sd 6:0:5:0: [sda] Write Protect is off
[   27.540000] sd 6:0:5:0: [sda] Mode Sense: d3 00 10 08
[   27.540000] sd 6:0:6:0: [sdb] Spinning up disk...
[   27.552000] sd 3:0:0:0: [sdc] 250069680 512-byte logical blocks: (128 GB/119 GiB)
[   27.552000] sd 3:0:0:0: [sdc] Write Protect is off
[   27.552000] sd 3:0:0:0: [sdc] Mode Sense: 00 3a 00 00
[   27.552000] sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[   27.552000] ata4.00: Enabling discard_zeroes_data
[   27.884000]  sdc: sdc1 sdc2 < sdc5 >
[   28.004000] ata4.00: Enabling discard_zeroes_data
[   28.096000] sd 3:0:0:0: [sdc] Attached SCSI disk
[   28.152000] sd 6:0:5:0: Attached scsi generic sg0 type 0
[   28.152000] sd 6:0:5:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA
[   28.240000]  sda: sda1 sda2 sda3 < sda5 sda6 >
[   28.344000] sd 6:0:5:0: [sda] Attached SCSI disk
[   28.440000] sd 6:0:6:0: Attached scsi generic sg1 type 0
[   28.504000] sd 3:0:0:0: Attached scsi generic sg2 type 0
[   29.156000] ..........ready
[   38.216000] sd 6:0:6:0: [sdb] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)
[   38.308000] sd 6:0:6:0: [sdb] Write Protect is off
[   38.368000] sd 6:0:6:0: [sdb] Mode Sense: d3 00 10 08
[   38.368000] sd 6:0:6:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA
[   38.496000]  sdb: sdb1 sdb2
[   38.548000] sd 6:0:6:0: [sdb] Attached SCSI disk
[   39.880000] EXT4-fs (sda5): mounted filesystem with ordered data mode. Opts: (null)
[   40.604000] systemd[1]: systemd 215 running in system mode. (+PAM +AUDIT +SELINUX +IMA +SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ -SECCOMP -APPARMOR)
[   40.764000] systemd[1]: Detected architecture 'parisc64'.
[   41.064000] systemd[1]: Inserted module 'autofs4'
[   41.128000] systemd[1]: Set hostname to <wills>.
[   41.768000] systemd[1]: Cannot add dependency job for unit dbus.socket, ignoring: Unit dbus.socket failed to load: No such file or directory.
[   41.924000] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory.
[   42.100000] systemd[1]: Expecting device dev-ttyS0.device...
[   42.252000] systemd[1]: Starting Forward Password Requests to Wall Directory Watch.
[   42.344000] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[   42.436000] systemd[1]: Starting Remote File Systems (Pre).
[   42.592000] systemd[1]: Reached target Remote File Systems (Pre).
[   42.664000] systemd[1]: Starting Dispatch Password Requests to Console Directory Watch.
[   42.760000] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[   42.856000] systemd[1]: Starting Paths.
[   42.976000] systemd[1]: Reached target Paths.
[   43.028000] systemd[1]: Starting Encrypted Volumes.
[   43.176000] systemd[1]: Reached target Encrypted Volumes.
[   43.240000] systemd[1]: Starting Arbitrary Executable File Formats File System Automount Point.
[   43.468000] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[   43.580000] systemd[1]: Expecting device dev-disk-by\x2duuid-7b4abae5\x2d4940\x2d4b49\x2d9cce\x2d9a76bdf297ad.device...
[   43.824000] systemd[1]: Expecting device dev-disk-by\x2duuid-d01c8b13\x2d987c\x2d4eaa\x2dac16\x2d4a567841bbd6.device...
[   44.068000] systemd[1]: Expecting device dev-disk-by\x2duuid-ad9c6293\x2d6842\x2d4d30\x2d856b\x2db944974f9e3a.device...
[   44.312000] systemd[1]: Expecting device dev-disk-by\x2duuid-46c35a76\x2deec5\x2d4299\x2dbc6f\x2d8aa32fd5bcef.device...
[   44.556000] systemd[1]: Starting Root Slice.
[   44.720000] systemd[1]: Created slice Root Slice.
[   44.776000] systemd[1]: Starting User and Session Slice.
[   44.932000] systemd[1]: Created slice User and Session Slice.
[   45.000000] systemd[1]: Starting /dev/initctl Compatibility Named Pipe.
[   45.188000] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[   45.272000] systemd[1]: Starting Delayed Shutdown Socket.
[   45.428000] systemd[1]: Listening on Delayed Shutdown Socket.
[   45.496000] systemd[1]: Starting Journal Socket (/dev/log).
[   45.656000] systemd[1]: Listening on Journal Socket (/dev/log).
[   45.728000] systemd[1]: Starting Syslog Socket.
[   45.864000] systemd[1]: Listening on Syslog Socket.
[   45.920000] systemd[1]: Starting udev Control Socket.
[   46.072000] systemd[1]: Listening on udev Control Socket.
[   46.136000] systemd[1]: Starting udev Kernel Socket.
[   46.280000] systemd[1]: Listening on udev Kernel Socket.
[   46.344000] systemd[1]: Starting Journal Socket.
[   46.480000] systemd[1]: Listening on Journal Socket.
[   46.540000] systemd[1]: Starting Sockets.
[   46.660000] systemd[1]: Reached target Sockets.
[   46.712000] systemd[1]: Starting System Slice.
[   46.844000] systemd[1]: Created slice System Slice.
[   46.900000] systemd[1]: Starting File System Check on Root Device...
[   47.072000] systemd[1]: Starting system-systemd\x2dfsck.slice.
[   47.236000] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[   47.320000] systemd[1]: Starting system-getty.slice.
[   47.380000] systemd[1]: Created slice system-getty.slice.
[   47.444000] systemd[1]: Starting system-serial\x2dgetty.slice.
[   47.532000] systemd[1]: Created slice system-serial\x2dgetty.slice.
[   47.624000] systemd[1]: Mounting POSIX Message Queue File System...
[   47.720000] systemd[1]: Starting Create list of required static device nodes for the current kernel...
[   47.848000] systemd[1]: Mounted Huge Pages File System.
[   47.924000] systemd[1]: Starting udev Coldplug all Devices...
[   48.016000] systemd[1]: Mounting Debug File System...
[   48.108000] systemd[1]: Started Set Up Additional Binary Formats.
[   48.212000] systemd[1]: Starting Load Kernel Modules...
[   48.292000] systemd[1]: Starting Journal Service...
[   48.376000] systemd[1]: Started Journal Service.
[   49.752000] systemd-udevd[180]: starting version 215
[   50.028000] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro
[   51.564000] nouveau 0000:80:00.0: enabling SERR and PARITY (0107 -> 0147)
[   52.220000] nouveau  [  DEVICE][0000:80:00.0] BOOT0  : 0x043000a4
[   52.292000] nouveau  [  DEVICE][0000:80:00.0] Chipset: NV43 (NV43)
[   52.368000] nouveau  [  DEVICE][0000:80:00.0] Family : NV40
[   52.612000] nouveau 0000:80:00.0: Invalid ROM contents
[   52.700000] nouveau ![   VBIOS][0000:80:00.0] unable to locate usable image
[   52.800000] nouveau E[  DEVICE][0000:80:00.0] failed to create 0x10000001, -22
[   52.904000] nouveau E[     DRM] failed to create 0x00000080, -22
[   53.008000] nouveau: probe of 0000:80:00.0 failed with error -22
[   53.472000] Adding 2657276k swap on /dev/sda6.  Priority:-1 extents:1 across:2657276k FS
[   53.804000] Adding 4194300k swap on /dev/sdb1.  Priority:-2 extents:1 across:4194300k FS
[   55.188000] EXT4-fs (sdb2): mounted filesystem with ordered data mode. Opts: (null)
[   55.316000] EXT4-fs (sda2): mounting ext2 file system using the ext4 subsystem
[   55.412000] EXT4-fs (sda2): mounted filesystem without journal. Opts: (null)
[   56.228000] systemd-journald[169]: Received request to flush runtime journal from PID 1
[   56.920000] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   56.992000] e1000: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
[   57.088000] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

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Subject: Re: bad address in handle_percpu_irq
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Further to this, if I boot single user I can get a shell, then <Ctrl-D> to
continue booting, whereupon the same panic may occur.

I'm unsure if this is related, but I noticed I can reliably trigger a system
freeze when changing runlevels. The system no longer responds to ping.
The sequence of events is (starting in runlevel 5):

root@wills:~# telinit 1
[ 604.336000] systemd-journald[169]: Received request to flush runtime journal from PID 1
Welcome to rescuGive root password for maintenance
(or type Control-D to continue):
root@wills:~# telinit 5
Hangup
root@wills:~# 
[ 610.908000] systemd-journald[169]: Received request to flush runtime journal from PID 1

root@wills:~#
Debian GNU/Linux stretch/sid wills ttyS0

wills login:


### At this point I have both a shell and a login prompt vying for input,
### pressing <Ctrl-D> in an attempt to exit the shell produces the freeze.

[  848.108000] INFO: task agetty:592 blocked for more than 120 seconds.
[  848.184000]       Not tainted 4.1.0-1-parisc64-smp #1
[  848.244000] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  848.336000] agetty          D 00000000401630c0     0   592      1 0x00000110
[  848.420000] Backtrace:
[  848.448000]  [<000000004016c9b8>] __schedule+0x2a8/0x750
[  848.512000]  [<000000004016cea8>] schedule+0x48/0xc8
[  848.572000]  [<00000000401704a4>] schedule_timeout+0x1d4/0x240
[  848.644000]  [<000000004017106c>] ldsem_down_write+0x164/0x2d0
[  848.712000]  [<0000000040171b2c>] tty_ldisc_lock+0x2c/0xa8
[  848.780000]  [<00000000404e1e94>] tty_ldisc_hangup+0x12c/0x2e8
[  848.848000]  [<00000000404d6390>] __tty_hangup+0x498/0x680
[  848.916000]  [<00000000404d6c1c>] disassociate_ctty+0x94/0x420
[  848.984000]  [<00000000401a217c>] do_exit+0x99c/0xd18
[  849.044000]  [<00000000401a25b0>] do_group_exit+0x50/0xf0
[  849.108000]  [<00000000401a2670>] SyS_exit_group+0x20/0x28
[  849.176000]  [<0000000040164fc0>] syscall_exit+0x0/0x14
[  849.240000]
[  969.256000] INFO: task agetty:592 blocked for more than 120 seconds.
[  969.332000]       Not tainted 4.1.0-1-parisc64-smp #1
[  969.392000] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  969.484000] agetty          D 00000000401630c0     0   592      1 0x00000110
[  969.568000] Backtrace:
[  969.596000]  [<000000004016c9b8>] __schedule+0x2a8/0x750
[  969.660000]  [<000000004016cea8>] schedule+0x48/0xc8
[  969.720000]  [<00000000401704a4>] schedule_timeout+0x1d4/0x240
[  969.792000]  [<000000004017106c>] ldsem_down_write+0x164/0x2d0
[  969.860000]  [<0000000040171b2c>] tty_ldisc_lock+0x2c/0xa8
[  969.928000]  [<00000000404e1e94>] tty_ldisc_hangup+0x12c/0x2e8
[  969.996000]  [<00000000404d6390>] __tty_hangup+0x498/0x680
[  970.064000]  [<00000000404d6c1c>] disassociate_ctty+0x94/0x420
[  970.132000]  [<00000000401a217c>] do_exit+0x99c/0xd18
[  970.192000]  [<00000000401a25b0>] do_group_exit+0x50/0xf0
[  970.256000]  [<00000000401a2670>] SyS_exit_group+0x20/0x28
[  970.324000]  [<0000000040164fc0>] syscall_exit+0x0/0x14
[  970.384000]

On 16/08/15 16:14, Graham Gower wrote:
> Hi,
> 
> I'm seeing the panic below on a c8000. It happens sometimes when booting, just
> before the login prompt is to appear. I've seen it with older kernels too, going
> back to at least 3.19.
> 
> -Graham
> 
> 
> [   62.596000] Backtrace:
> [   62.596000]  [<00000000401fdb60>] handle_percpu_irq+0xb0/0xf0
> [   62.596000]  [<00000000401f7894>] generic_handle_irq+0x4c/0x68
> [   62.596000]  [<0000000040177670>] execute_on_irq_stack+0x90/0xa8
> [   62.596000]  [<0000000040178574>] do_cpu_irq_mask+0x1ec/0x3e0
> [   62.596000]  [<0000000040164074>] intr_return+0x0/0xc
> [   62.596000]
> [   62.596000]
> [   62.596000] Bad Address (null pointer deref?): Code=26 regs=0000000042a0a070 (Addr=0000000000000000)
> [   62.596000] CPU: 0 PID: 444 Comm: (agetty) Not tainted 4.1.0-1-parisc64-smp #1 Debian 4.1.3-1
> [   62.596000] task: 000000007a9a7538 ti: 000000007dc38000 task.ti: 000000007dc38000
> [   62.596000]
> [   62.596000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [   62.596000] PSW: 00001000000001001111111100001110 Not tainted
> [   62.596000] r00-03  000000ff0804ff0e 00000000408b8f30 00000000401fdb60 0000000042a09f80
> [   62.596000] r04-07  000000004089ff30 0000000000000000 0000000000000000 0000000000000000
> [   62.596000] r08-11  0000000042a0a040 000000000000004c 0000000040932d40 000000000000004c
> [   62.596000] r12-15  000000000000004c 0000000000000001 00000000408d4f30 0000000000000001
> [   62.596000] r16-19  00000000408b8f30 00000000408b8f30 0000000000000202 00000000028b3000
> [   62.596000] r20-23  0000000042a0d020 bff7ffffffffffff 0000000040948420 fffc000000000000
> [   62.596000] r24-27  0000000042a099d0 0000000000000000 0000000040932d40 000000004089ff30
> [   62.596000] r28-31  0008000000000000 0000000042a09f50 0000000042a0a070 bff4000000000000
> [   62.596000] sr00-03  000000000013f800 0000000000000000 0000000000000000 000000000013b000
> [   62.596000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> [   62.596000]
> [   62.596000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401f861c 00000000401f8620
> [   62.596000]  IIR: 0ca010dc    ISR: 0000000000000000  IOR: 0000000000000000
> [   62.596000]  CPU:        0   CR30: 000000007dc38000 CR31: ffffffffdbfeffff
> [   62.596000]  ORIG_R28: 0000000040948420
> [   62.596000]  IAOQ[0]: handle_irq_event_percpu+0x8c/0x250
> [   62.596000]  IAOQ[1]: handle_irq_event_percpu+0x90/0x250
> [   62.596000]  RP(r2): handle_percpu_irq+0xb0/0xf0
> [   62.596000] Backtrace:
> [   62.596000]  [<00000000401fdb60>] handle_percpu_irq+0xb0/0xf0
> [   62.596000]  [<00000000401f7894>] generic_handle_irq+0x4c/0x68
> [   62.596000]  [<0000000040177670>] execute_on_irq_stack+0x90/0xa8
> [   62.596000]  [<0000000040178574>] do_cpu_irq_mask+0x1ec/0x3e0
> [   62.596000]  [<0000000040164074>] intr_return+0x0/0xc
> [   62.596000]
> <Cpu0> 0300109100e00000  0000000000000000  CC_PROCS_ENTRY_OUT
> [   62.596000] Kernel panic - not syncing: Bad Address (null pointer deref?)
> <Cpu0> 78000c6200e00000  a0e008c01100b009  CC_PAT_ENCODED_FIELD_WARNING
> <Cpu0> 76000c6800e00000  0000000000000520  CC_PAT_DATA_FIELD_WARNING
> <Cpu0> 0300109100e00000  0000000000000000  CC_PROCS_ENTRY_OUT
> [   62.596000] ---[ end Kernel panic - not syncing: Bad Address (null pointer deref?)
> 
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Hi Graham,

On 16.08.2015 12:39, Graham Gower wrote:
>> I'm seeing the panic below on a c8000. It happens sometimes when booting, just
>> before the login prompt is to appear. I've seen it with older kernels too, going
>> back to at least 3.19.

I have never seen such problems on the c8000...

>> [62.596000  <tel:62596000>] CPU: 0 PID: 444 Comm: (agetty) Not tainted 4.1.0-1-parisc64-smp #1 Debian 4.1.3-1

Do not use that kernel version, since it is missing at least this important patch:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c4ac9a48ac512c6b5a6cca06cfad2ad96e8caaa
I'm seeing that the next debian kernel 4.1.5-1 (which should have this patch) is currently being built and should finish by tomorrow:
http://buildd.debian-ports.org/status/package.php?p=linux&suite=sid

Our C8000 debian buildd server is currently running this kernel since 23 days:
4.0.0-2-parisc64-smp #1 SMP Debian 4.0.8-2 (2015-07-23) parisc64 GNU/Linux
Maybe you wait until tomorrow or try this kernel in the meantime ?

Helge
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Thanks Helge,

I am building 4.2-rc6, but I don't expect the handle_percpu_irq
problem to go away.

-Graham

On 17 August 2015 at 04:50, Helge Deller <deller@gmx.de> wrote:
> Hi Graham,
>
> On 16.08.2015 12:39, Graham Gower wrote:
>>>
>>> I'm seeing the panic below on a c8000. It happens sometimes when booting,
>>> just
>>> before the login prompt is to appear. I've seen it with older kernels
>>> too, going
>>> back to at least 3.19.
>
>
> I have never seen such problems on the c8000...
>
>>> [62.596000  <tel:62596000>] CPU: 0 PID: 444 Comm: (agetty) Not tainted
>>> 4.1.0-1-parisc64-smp #1 Debian 4.1.3-1
>
>
> Do not use that kernel version, since it is missing at least this important
> patch:
> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c4ac9a48ac512c6b5a6cca06cfad2ad96e8caaa
> I'm seeing that the next debian kernel 4.1.5-1 (which should have this
> patch) is currently being built and should finish by tomorrow:
> http://buildd.debian-ports.org/status/package.php?p=linux&suite=sid
>
> Our C8000 debian buildd server is currently running this kernel since 23
> days:
> 4.0.0-2-parisc64-smp #1 SMP Debian 4.0.8-2 (2015-07-23) parisc64 GNU/Linux
> Maybe you wait until tomorrow or try this kernel in the meantime ?
>
> Helge
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From - Thu Nov 08 21:37:48 2018
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Disabling systemd appears to mitigate this issue. I was getting the
panic most boots, now I haven't seen one in since switching back to
sysvinit.


On 17 August 2015 at 08:19, Graham Gower <graham.gower@gmail.com> wrote:
> Thanks Helge,
>
> I am building 4.2-rc6, but I don't expect the handle_percpu_irq
> problem to go away.
>
> -Graham
>
> On 17 August 2015 at 04:50, Helge Deller <deller@gmx.de> wrote:
>> Hi Graham,
>>
>> On 16.08.2015 12:39, Graham Gower wrote:
>>>>
>>>> I'm seeing the panic below on a c8000. It happens sometimes when booting,
>>>> just
>>>> before the login prompt is to appear. I've seen it with older kernels
>>>> too, going
>>>> back to at least 3.19.
>>
>>
>> I have never seen such problems on the c8000...
>>
>>>> [62.596000  <tel:62596000>] CPU: 0 PID: 444 Comm: (agetty) Not tainted
>>>> 4.1.0-1-parisc64-smp #1 Debian 4.1.3-1
>>
>>
>> Do not use that kernel version, since it is missing at least this important
>> patch:
>> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c4ac9a48ac512c6b5a6cca06cfad2ad96e8caaa
>> I'm seeing that the next debian kernel 4.1.5-1 (which should have this
>> patch) is currently being built and should finish by tomorrow:
>> http://buildd.debian-ports.org/status/package.php?p=linux&suite=sid
>>
>> Our C8000 debian buildd server is currently running this kernel since 23
>> days:
>> 4.0.0-2-parisc64-smp #1 SMP Debian 4.0.8-2 (2015-07-23) parisc64 GNU/Linux
>> Maybe you wait until tomorrow or try this kernel in the meantime ?
>>
>> Helge
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Subject: Aw: A500 boot crash in 4.2.0-rc3-00246-g763e326
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> Tried 4.2.0-rc3-00246-g763e326 on A500 but it crashes on boot. This is 
> still present in todays 4.2.0-rc6+git. 4.1 was fine, I Will bisect but 
> it takes time.
> 
> PDC Stable Storage facility v0.30
> STI GSC/PCI core graphics driver Version 0.9b
> Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
> serial 0000:00:04.0: enabling device (0146 -> 0147)
> console [ttyS0] disabled
> 0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 21, base_baud = 115200) is a 16550A
> console [ttyS0] enabled
> console [ttyS0] enabled
> bootconsole [ttyB0] disabled
> bootconsole [ttyB0] disabled
> 0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 21, base_baud = 115200) is a 16550A
> 0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 21, base_baud = 115200) is a 16550A
> serial 0000:00:05.0: enabling device (0000 -> 0003)
> serial 0000:00:05.0: enabling SERR and PARITY (0003 -> 0143)
> 0000:00:05.0: ttyS3 at MMIO 0xfffffffff8003000 (irq = 22, base_baud = 115200) is a 16550A
> serial 0000:00:05.0: Couldn't register serial port 0, irq 22, type 2, error -28
> sym53c8xx 0000:00:01.0: enabling device (0000 -> 0003)
> sym53c8xx 0000:00:01.0: enabling SERR and PARITY (0003 -> 0143)

I'm seeing the same problem on my rp5470 with Kernel 4.2-rc7. My machine just hangs though and doesn't crash.
The same kernel runs fine on a J5000:

[   14.100000] sym0: <896> rev 0x4 at pci 0000:00:0f.0 irq 69
[   14.168000] sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
[   14.248000] sym0: SCSI BUS has been reset.
[   14.304000] sym0: SCSI BUS mode change from SE to SE.
[   14.304000] sym0: SCSI BUS has been reset.
[   14.416000] scsi host0: sym-2.2.3
[   20.056000] sym1: <896> rev 0x4 at pci 0000:00:0f.1 irq 69
[   20.124000] sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
[   20.204000] sym1: SCSI BUS has been reset.
[   20.260000] sym1: SCSI BUS mode change from SE to SE.
[   20.260000] sym1: SCSI BUS has been reset.
[   20.372000] scsi host1: sym-2.2.3
[   22.420000] random: nonblocking pool is initialized
[   24.600000] scsi 1:0:3:0: Direct-Access     SEAGATE  ST118273WC       HP14 PQ: 0 ANSI: 2

Since the J5000 has another SCSI driver, I assume the problem is in changes in the SCSI layer or the sym53c8xx driver.

Helge
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On 2015-08-17, at 8:55 AM, Graham Gower wrote:

> Disabling systemd appears to mitigate this issue. I was getting the
> panic most boots, now I haven't seen one in since switching back to
> sysvinit.

See the same on rp3440 with systemd-sysv.

It might be a kernel feature issue as the sibaris buildd machine seems to be
running okay with systemd-sysv.

With systemd-shim and cgmanager, cgmanager somtimes runs away and needs
restarting.  There are also annoying console messges like the following:

mx3210 login: systemd-logind[3571]: New seat seat0.
systemd-logind[3571]: Failed to start user service: Unknown unit: user@1000.service
systemd-logind[3571]: New session c1 of user dave.

Dave
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> > Tried 4.2.0-rc3-00246-g763e326 on A500 but it crashes on boot. This is 
> > still present in todays 4.2.0-rc6+git. 4.1 was fine, I Will bisect but 
> > it takes time.
> > 
> > PDC Stable Storage facility v0.30
> > STI GSC/PCI core graphics driver Version 0.9b
> > Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
> > serial 0000:00:04.0: enabling device (0146 -> 0147)
> > console [ttyS0] disabled
> > 0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 21, base_baud = 115200) is a 16550A
> > console [ttyS0] enabled
> > console [ttyS0] enabled
> > bootconsole [ttyB0] disabled
> > bootconsole [ttyB0] disabled
> > 0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 21, base_baud = 115200) is a 16550A
> > 0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 21, base_baud = 115200) is a 16550A
> > serial 0000:00:05.0: enabling device (0000 -> 0003)
> > serial 0000:00:05.0: enabling SERR and PARITY (0003 -> 0143)
> > 0000:00:05.0: ttyS3 at MMIO 0xfffffffff8003000 (irq = 22, base_baud = 115200) is a 16550A
> > serial 0000:00:05.0: Couldn't register serial port 0, irq 22, type 2, error -28
> > sym53c8xx 0000:00:01.0: enabling device (0000 -> 0003)
> > sym53c8xx 0000:00:01.0: enabling SERR and PARITY (0003 -> 0143)
> 
> I'm seeing the same problem on my rp5470 with Kernel 4.2-rc7. My machine just hangs though and doesn't crash.

I did a bisect and commit 3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d ("PCI: Add pci_bus_addr_t") seems to be the culprit:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d

Since the patch has "CC: stable@vger.kernel.org  # v3.19+", it might be the reason why you see kernel 3.19 failing too...

Helge

[deller@ls3530 linux-2.6]$ git bisect good v4.1
[deller@ls3530 linux-2.6]$ git bisect bad v4.2-rc3
Bisecting: 6909 revisions left to test after this (roughly 13 steps)
[0db9723cacf4d62bc3685fb15179b39ee4e17679] Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
[deller@ls3530 linux-2.6]$ git bisect bad 
Bisecting: 3289 revisions left to test after this (roughly 12 steps)
[e3d8238d7f5c3f539a29f5ac596cd342d847e099] Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
[deller@ls3530 linux-2.6]$ git bisect bad 
Bisecting: 1662 revisions left to test after this (roughly 11 steps)
[c70c5fb2b96dae0996fb0877d996458d3ca57eda] Merge tag 'pwm/for-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
[deller@ls3530 linux-2.6]$ git bisect good
Bisecting: 824 revisions left to test after this (roughly 10 steps)
[acd53127c4adbd34570b221e7ea1f7fc94aea923] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
[deller@ls3530 linux-2.6]$ git bisect bad 
Bisecting: 482 revisions left to test after this (roughly 9 steps)
[cb8a4deaf9b2778653c4391d8ccb24c5ab159f9d] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
[deller@ls3530 linux-2.6]$ git bisect bad 
Bisecting: 172 revisions left to test after this (roughly 8 steps)
[234a56c80a6aa7a05fec05d8b7184354d8765b48] Merge tag 'hwmon-for-linus-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
[deller@ls3530 linux-2.6]$ git bisect good
Bisecting: 96 revisions left to test after this (roughly 7 steps)
[a394c6a0b361fe7b6ffec0e33e9100db5e777b24] Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia
[deller@ls3530 linux-2.6]$ git bisect bad 
Bisecting: 42 revisions left to test after this (roughly 5 steps)
[0ff9b9bad66730e8347cb3350c8d3d1b88a21f13] Merge branches 'pci/aspm', 'pci/enumeration', 'pci/hotplug', 'pci/misc', 'pci/msi', 'pci/resource' and 'pci/virtualization' into next
[deller@ls3530 linux-2.6]$ git bisect bad 
Bisecting: 25 revisions left to test after this (roughly 4 steps)
[c6201cd8513db2db54b248a862672849ed9ccb82] PCI/MSI: Remove unused pci_msi_off()
[deller@ls3530 linux-2.6]$ git bisect good
Bisecting: 19 revisions left to test after this (roughly 4 steps)
[0c0cbb6c5a04a169320df1812e58b10362865e95] PCI/ASPM: Simplify Clock Power Management setting
[deller@ls3530 linux-2.6]$ git bisect good
Bisecting: 14 revisions left to test after this (roughly 3 steps)
[a5dd4b4b0570b3bf880d563969b245dfbd170c1e] PCI: pciehp: Wait for hotplug command completion where necessary
[deller@ls3530 linux-2.6]$ git bisect good
Bisecting: 9 revisions left to test after this (roughly 3 steps)
[c0300089fd2dbeebef5ab9b6d66b4e6cedf8500a] PCI: Remove unused pci_scan_bus_parented()
[deller@ls3530 linux-2.6]$ git bisect good
Bisecting: 5 revisions left to test after this (roughly 2 steps)
[917bfd93d3c9c644743940deaf8fe0cff77947eb] ACPI / PCI: Account for ARI in _PRT lookups
[deller@ls3530 linux-2.6]$ git bisect good
Bisecting: 2 revisions left to test after this (roughly 2 steps)
[d59d36a7fce6707acae644621320a75ab93f1856] PCI: Remove unused pcibios_select_root() (again)
[deller@ls3530 linux-2.6]$ git bisect good
Bisecting: 1 revision left to test after this (roughly 1 step)
[3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d] PCI: Add pci_bus_addr_t
[deller@ls3530 linux-2.6]$ git bisect bad 
3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d is the first bad commit
commit 3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d
Author: Yinghai Lu <yinghai@kernel.org>
Date:   Wed May 27 17:23:51 2015 -0700

    PCI: Add pci_bus_addr_t
    
    David Ahern reported that d63e2e1f3df9 ("sparc/PCI: Clip bridge windows
    to fit in upstream windows") fails to boot on sparc/T5-8:
    
      pci 0000:06:00.0: reg 0x184: can't handle BAR above 4GB (bus address 0x110204000)
    
    The problem is that sparc64 assumed that dma_addr_t only needed to hold DMA
    addresses, i.e., bus addresses returned via the DMA API (dma_map_single(),
    etc.), while the PCI core assumed dma_addr_t could hold *any* bus address,
    including raw BAR values.  On sparc64, all DMA addresses fit in 32 bits, so
    dma_addr_t is a 32-bit type.  However, BAR values can be 64 bits wide, so
    they don't fit in a dma_addr_t.  d63e2e1f3df9 added new checking that
    tripped over this mismatch.
    
    Add pci_bus_addr_t, which is wide enough to hold any PCI bus address,
    including both raw BAR values and DMA addresses.  This will be 64 bits
    on 64-bit platforms and on platforms with a 64-bit dma_addr_t.  Then
    dma_addr_t only needs to be wide enough to hold addresses from the DMA API.
    
    [bhelgaas: changelog, bugzilla, Kconfig to ensure pci_bus_addr_t is at
    least as wide as dma_addr_t, documentation]
    Fixes: d63e2e1f3df9 ("sparc/PCI: Clip bridge windows to fit in upstream windows")
    Fixes: 23b13bc76f35 ("PCI: Fail safely if we can't handle BARs larger than 4GB")
    Link: http://lkml.kernel.org/r/CAE9FiQU1gJY1LYrxs+ma5LCTEEe4xmtjRG0aXJ9K_Tsu+m9Wuw@mail.gmail.com
    Link: http://lkml.kernel.org/r/1427857069-6789-1-git-send-email-yinghai@kernel.org
    Link: https://bugzilla.kernel.org/show_bug.cgi?id=96231
    Reported-by: David Ahern <david.ahern@oracle.com>
    Tested-by: David Ahern <david.ahern@oracle.com>
    Signed-off-by: Yinghai Lu <yinghai@kernel.org>
    Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
    Acked-by: David S. Miller <davem@davemloft.net>
    CC: stable@vger.kernel.org  # v3.19+

:040000 040000 ce493c3ad8e7b3e9b1f48f53588880827a48a082 76798494194e545219eb18dbb9f5209e02796820 M      Documentation
:040000 040000 19b4d25aa55534c88947c00c5862baf292f836dd 7adaff85e1fd7b27f053bdbf52d3bf6184a9fa54 M      drivers
:040000 040000 37493ef5238ad154ccad6a184617975e8502730e 93e417046cd848c639c9c4364009224bd4fa0500 M      include
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From - Thu Nov 08 21:37:48 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: Re: Aw: A500 boot crash in 4.2.0-rc3-00246-g763e326
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Cc: linux-parisc@vger.kernel.org, linux-pci@vger.kernel.org,
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(CC-s added)

> > > Tried 4.2.0-rc3-00246-g763e326 on A500 but it crashes on boot. This is 
> > > still present in todays 4.2.0-rc6+git. 4.1 was fine, I Will bisect but 
> > > it takes time.
> > > 
> > > PDC Stable Storage facility v0.30
> > > STI GSC/PCI core graphics driver Version 0.9b
> > > Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
> > > serial 0000:00:04.0: enabling device (0146 -> 0147)
> > > console [ttyS0] disabled
> > > 0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 21, base_baud = 115200) is a 16550A
> > > console [ttyS0] enabled
> > > console [ttyS0] enabled
> > > bootconsole [ttyB0] disabled
> > > bootconsole [ttyB0] disabled
> > > 0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 21, base_baud = 115200) is a 16550A
> > > 0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 21, base_baud = 115200) is a 16550A
> > > serial 0000:00:05.0: enabling device (0000 -> 0003)
> > > serial 0000:00:05.0: enabling SERR and PARITY (0003 -> 0143)
> > > 0000:00:05.0: ttyS3 at MMIO 0xfffffffff8003000 (irq = 22, base_baud = 115200) is a 16550A
> > > serial 0000:00:05.0: Couldn't register serial port 0, irq 22, type 2, error -28
> > > sym53c8xx 0000:00:01.0: enabling device (0000 -> 0003)
> > > sym53c8xx 0000:00:01.0: enabling SERR and PARITY (0003 -> 0143)
> > 
> > I'm seeing the same problem on my rp5470 with Kernel 4.2-rc7. My machine just hangs though and doesn't crash.
> 
> I did a bisect and commit 3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d ("PCI: Add pci_bus_addr_t") seems to be the culprit:
> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d
> 
> Since the patch has "CC: stable@vger.kernel.org  # v3.19+", it might be the reason why you see kernel 3.19 failing too...

I just found the same commit breaking my A500 parisc machine by 
bisecting.

CC: patch author and linux-pci.

-- 
Meelis Roos (mroos@linux.ee)
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Aw: A500 boot crash in 4.2.0-rc3-00246-g763e326
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On 18.08.2015 20:44, Meelis Roos wrote:
> (CC-s added)
>
>>>> Tried 4.2.0-rc3-00246-g763e326 on A500 but it crashes on boot. This is
>>>> still present in todays 4.2.0-rc6+git. 4.1 was fine, I Will bisect but
>>>> it takes time.
>>>>
>>>> PDC Stable Storage facility v0.30
>>>> STI GSC/PCI core graphics driver Version 0.9b
>>>> Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
>>>> serial 0000:00:04.0: enabling device (0146 -> 0147)
>>>> console [ttyS0] disabled
>>>> 0000:00:04.0: ttyS0 at MMIO 0xfffffffff8000000 (irq = 21, base_baud = 115200) is a 16550A
>>>> console [ttyS0] enabled
>>>> console [ttyS0] enabled
>>>> bootconsole [ttyB0] disabled
>>>> bootconsole [ttyB0] disabled
>>>> 0000:00:04.0: ttyS1 at MMIO 0xfffffffff8000008 (irq = 21, base_baud = 115200) is a 16550A
>>>> 0000:00:04.0: ttyS2 at MMIO 0xfffffffff8000010 (irq = 21, base_baud = 115200) is a 16550A
>>>> serial 0000:00:05.0: enabling device (0000 -> 0003)
>>>> serial 0000:00:05.0: enabling SERR and PARITY (0003 -> 0143)
>>>> 0000:00:05.0: ttyS3 at MMIO 0xfffffffff8003000 (irq = 22, base_baud = 115200) is a 16550A
>>>> serial 0000:00:05.0: Couldn't register serial port 0, irq 22, type 2, error -28
>>>> sym53c8xx 0000:00:01.0: enabling device (0000 -> 0003)
>>>> sym53c8xx 0000:00:01.0: enabling SERR and PARITY (0003 -> 0143)
>>>
>>> I'm seeing the same problem on my rp5470 with Kernel 4.2-rc7. My machine just hangs though and doesn't crash.
>>
>> I did a bisect and commit 3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d ("PCI: Add pci_bus_addr_t") seems to be the culprit:
>> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d
>>
>> Since the patch has "CC: stable@vger.kernel.org  # v3.19+", it might be the reason why you see kernel 3.19 failing too...
>
> I just found the same commit breaking my A500 parisc machine by
> bisecting.
>
> CC: patch author and linux-pci.

I think this is the problem:

--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -1,6 +1,10 @@
  #
  # PCI configuration
  #
+config PCI_BUS_ADDR_T_64BIT
+       def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
+       depends on PCI


CONFIG_PCI_BUS_ADDR_T_64BIT gets now defined on all 64bit arches.
Then if CONFIG_PCI_BUS_ADDR_T_64BIT is set, in pci_bus_alloc_resource()
64bit address spaces (IORESOURCE_MEM_64) will be enabled which weren't enabled before.

This trivial/temporary hack fixes the problem:

--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -200,7 +200,7 @@ int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
                                           resource_size_t),
                 void *alignf_data)
  {
-#ifdef CONFIG_PCI_BUS_ADDR_T_64BIT
+#if defined(CONFIG_PCI_BUS_ADDR_T_64BIT) && !defined(CONFIG_PARISC)
         int rc;
  
         if (res->flags & IORESOURCE_MEM_64) {


but the real problem is probably, that the sym53c8xx driver or maybe the parisc PCI core code isn't 64bit clean?

I did some more debugging, and on parisc the first hang happens in function sym_check_raid() [called from sym2_probe()]
indrivers/scsi/sym53c8xx_2/sym_glue.c while trying to call readl():
   ram_val = readl(device->s.ramaddr + ram_size - 16);

Helge
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From: Yinghai Lu <yinghai@kernel.org>
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Subject: Re: Aw: A500 boot crash in 4.2.0-rc3-00246-g763e326
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Cc: Meelis Roos <mroos@linux.ee>, linux-parisc@vger.kernel.org,
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On Tue, Aug 18, 2015 at 12:47 PM, Helge Deller <deller@gmx.de> wrote:
> On 18.08.2015 20:44, Meelis Roos wrote:
>>> I did a bisect and commit 3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d ("PCI:
>>> Add pci_bus_addr_t") seems to be the culprit:
>>>
>>> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d
>>
>> CC: patch author and linux-pci.
>
>
> I think this is the problem:
>
> --- a/drivers/pci/Kconfig
> +++ b/drivers/pci/Kconfig
> @@ -1,6 +1,10 @@
>  #
>  # PCI configuration
>  #
> +config PCI_BUS_ADDR_T_64BIT
> +       def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
> +       depends on PCI

Thanks for bisecting.

Then we should change to

config PCI_BUS_ADDR_T_64BIT
       def_bool y if (ARCH_DMA_ADDR_T_64BIT || SPARC64)
       depends on PCI
--
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Subject: Re: Aw: A500 boot crash in 4.2.0-rc3-00246-g763e326
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> On Tue, Aug 18, 2015 at 12:47 PM, Helge Deller <deller@gmx.de> wrote:
> > On 18.08.2015 20:44, Meelis Roos wrote:
> >>> I did a bisect and commit 3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d ("PCI:
> >>> Add pci_bus_addr_t") seems to be the culprit:
> >>>
> >>> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d
> >>
> >> CC: patch author and linux-pci.
> >
> >
> > I think this is the problem:
> >
> > --- a/drivers/pci/Kconfig
> > +++ b/drivers/pci/Kconfig
> > @@ -1,6 +1,10 @@
> >  #
> >  # PCI configuration
> >  #
> > +config PCI_BUS_ADDR_T_64BIT
> > +       def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
> > +       depends on PCI
> 
> Thanks for bisecting.
> 
> Then we should change to
> 
> config PCI_BUS_ADDR_T_64BIT
>        def_bool y if (ARCH_DMA_ADDR_T_64BIT || SPARC64)
>        depends on PCI

Why SPARC64? The problem happened on parisc.

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:37:48 2018
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On Tue, Aug 18, 2015 at 9:48 PM, Meelis Roos <mroos@linux.ee> wrote:
>> On Tue, Aug 18, 2015 at 12:47 PM, Helge Deller <deller@gmx.de> wrote:
>>
>> Then we should change to
>>
>> config PCI_BUS_ADDR_T_64BIT
>>        def_bool y if (ARCH_DMA_ADDR_T_64BIT || SPARC64)
>>        depends on PCI
>
> Why SPARC64? The problem happened on parisc.
>

so will not set PCI_BUS_ADDR_T_64BIT for parisc.
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From - Thu Nov 08 21:37:48 2018
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> >>> I did a bisect and commit 3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d ("PCI:
> >>> Add pci_bus_addr_t") seems to be the culprit:
> >>>
> >>> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a9ad0b4fdcd57f775d3615004c8c64c021a9e7d
> >>
> >> CC: patch author and linux-pci.
> >
> >
> > I think this is the problem:
> >
> > --- a/drivers/pci/Kconfig
> > +++ b/drivers/pci/Kconfig
> > @@ -1,6 +1,10 @@
> >  #
> >  # PCI configuration
> >  #
> > +config PCI_BUS_ADDR_T_64BIT
> > +       def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
> > +       depends on PCI
> 
> Thanks for bisecting.
> 
> Then we should change to
> 
> config PCI_BUS_ADDR_T_64BIT
>        def_bool y if (ARCH_DMA_ADDR_T_64BIT || SPARC64)
>        depends on PCI

This works for my A500.

-- 
Meelis Roos (mroos@linux.ee)
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.ports.sparc
Subject: Re: Aw: A500 boot crash in 4.2.0-rc3-00246-g763e326
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Cc: Meelis Roos <mroos@linux.ee>, Helge Deller <deller@gmx.de>,
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	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
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To: Yinghai Lu <yinghai@kernel.org>
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On 2015-08-19, at 1:30 AM, Yinghai Lu wrote:

> On Tue, Aug 18, 2015 at 9:48 PM, Meelis Roos <mroos@linux.ee> wrote:
>>> On Tue, Aug 18, 2015 at 12:47 PM, Helge Deller <deller@gmx.de> wrote:
>>> 
>>> Then we should change to
>>> 
>>> config PCI_BUS_ADDR_T_64BIT
>>>       def_bool y if (ARCH_DMA_ADDR_T_64BIT || SPARC64)
>>>       depends on PCI
>> 
>> Why SPARC64? The problem happened on parisc.
>> 
> 
> so will not set PCI_BUS_ADDR_T_64BIT for parisc.

I'm not sure this is optimal.  While the A500 may only have 32-bit PCI, c8000 appears to have a mix
of 32 and 64-bit, and rp34XX is all 64-bit.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:37:49 2018
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Subject: Aw: Re:  A500 boot crash in 4.2.0-rc3-00246-g763e326
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Cc: "Yinghai Lu" <yinghai@kernel.org>, "Meelis Roos" <mroos@linux.ee>,
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To: "John David Anglin" <dave.anglin@bell.net>
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> On 2015-08-19, at 1:30 AM, Yinghai Lu wrote:
> > On Tue, Aug 18, 2015 at 9:48 PM, Meelis Roos <mroos@linux.ee> wrote:
> >>> On Tue, Aug 18, 2015 at 12:47 PM, Helge Deller <deller@gmx.de> wrote:
> >>> 
> >>> Then we should change to
> >>> 
> >>> config PCI_BUS_ADDR_T_64BIT
> >>>       def_bool y if (ARCH_DMA_ADDR_T_64BIT || SPARC64)
> >>>       depends on PCI
> >> 
> >> Why SPARC64? The problem happened on parisc.
> > so will not set PCI_BUS_ADDR_T_64BIT for parisc.

I think given the current time frame it's probably the best approach to fix this problem for kernel 4.2.
It reverts the behaviour back to how it was before (for all arches beside SPARC64).
I'm still wondering if/why parisc is the only arch (in the sym53c8xx driver only!) which broke by this change...

> I'm not sure this is optimal.  While the A500 may only have 32-bit PCI, c8000 appears to have a mix
> of 32 and 64-bit, and rp34XX is all 64-bit.

True, but probably nobody of us noticed that we only used the 32-bit PCI interface even with 64bit kernel on parisc up to now?
pci_bus_alloc_resource() in drivers/pci/bus.c just disabled (flag=0) all 64bit resources for us.
But I agree, I think we need to fix drivers/parisc/lba_pci.c to correctly cope with 64bit pci addresses.

In the meantime I did some more debugging on sym_iomap_device() in drivers/scsi/sym53c8xx_2/sym_glue.c:
   pcibios_resource_to_bus(pdev->bus, &bus_addr,
                          &pdev->resource[i]);
   ram_base = bus_addr.start;

with (working) 32bit PCI addresses I get:
ressource = [mem 0xffffffff80002000-0xffffffff80003fff 64bit]
and pcibios_resource_to_bus() returning: ram_base = 0x80002000 

and with (failing) 64bit PCI addresses I get:
ressource = [mem 0xfffffff004000000-0xfffffff004001fff 64bit]
and pcibios_resource_to_bus() returning: ram_base = 0xfffffff004000000 

It seems the resource window doesn't get initialized correctly for 64bit...

Helge

From - Thu Nov 08 21:37:49 2018
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From: Bjorn Helgaas <bhelgaas@google.com>
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Subject: Re: Re:  A500 boot crash in 4.2.0-rc3-00246-g763e326
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Cc: John David Anglin <dave.anglin@bell.net>,
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On Wed, Aug 19, 2015 at 04:06:38PM +0200, Helge Deller wrote:
> > On 2015-08-19, at 1:30 AM, Yinghai Lu wrote:
> > > On Tue, Aug 18, 2015 at 9:48 PM, Meelis Roos <mroos@linux.ee> wrote:
> > >>> On Tue, Aug 18, 2015 at 12:47 PM, Helge Deller <deller@gmx.de> wrote:
> > >>> 
> > >>> Then we should change to
> > >>> 
> > >>> config PCI_BUS_ADDR_T_64BIT
> > >>>       def_bool y if (ARCH_DMA_ADDR_T_64BIT || SPARC64)
> > >>>       depends on PCI
> > >> 
> > >> Why SPARC64? The problem happened on parisc.
> > > so will not set PCI_BUS_ADDR_T_64BIT for parisc.
> 
> I think given the current time frame it's probably the best approach to fix this problem for kernel 4.2.
> It reverts the behaviour back to how it was before (for all arches beside SPARC64).
> I'm still wondering if/why parisc is the only arch (in the sym53c8xx driver only!) which broke by this change...
> 
> > I'm not sure this is optimal.  While the A500 may only have 32-bit PCI, c8000 appears to have a mix
> > of 32 and 64-bit, and rp34XX is all 64-bit.
> 
> True, but probably nobody of us noticed that we only used the 32-bit PCI interface even with 64bit kernel on parisc up to now?
> pci_bus_alloc_resource() in drivers/pci/bus.c just disabled (flag=0) all 64bit resources for us.
> But I agree, I think we need to fix drivers/parisc/lba_pci.c to correctly cope with 64bit pci addresses.

I doubt we can fix the underlying issue before v4.2, but I'd at least
like to avoid it.  I applied the patch below to for-linus.

Yinghai proposed this:

> > >>>       def_bool y if (ARCH_DMA_ADDR_T_64BIT || SPARC64)

I did this instead:

+	def_bool y if (ARCH_DMA_ADDR_T_64BIT || (64BIT && !PARISC))

because (a) Yinghai's proposal suggests this change is related to
SPARC64, which is misleading, and (b) I want to keep 64-bit bus
addresses for all 64-bit kernels *except* PA-RISC.

I didn't mark it as Tested-by Meelis because I think he tested
Yinghai's proposal.  But I can add that back, given confirmation.


commit 51a660a2732c
Author: Bjorn Helgaas <bhelgaas@google.com>
Date:   Thu Aug 20 00:08:15 2015 -0500

    PCI: Don't use 64-bit bus addresses on PA-RISC
    
    Meelis and Helge reported that 3a9ad0b4fdcd ("PCI: Add pci_bus_addr_t")
    caused HPMCs on A500 and hangs on rp5470.
    
    PA-RISC does not set ARCH_DMA_ADDR_T_64BIT, even for 64-bit kernels, so
    prior to 3a9ad0b4fdcd, we always used 32-bit PCI addresses.  After
    3a9ad0b4fdcd, we do use 64-bit PCI addresses in 64-bit kernels, and
    apparently there's some PA-RISC problem related to them.
    
    Fixes: 3a9ad0b4fdcd ("PCI: Add pci_bus_addr_t")
    Link: http://lkml.kernel.org/r/alpine.LRH.2.11.1507260929000.30065@math.ut.ee
    Reported-by: Meelis Roos <mroos@linux.ee>
    Reported-by: Helge Deller <deller@gmx.de>
    Based-on-idea-by: Yinghai Lu <yinghai@kernel.org>
    Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 73de4ef..944f500 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -2,7 +2,7 @@
 # PCI configuration
 #
 config PCI_BUS_ADDR_T_64BIT
-	def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
+	def_bool y if (ARCH_DMA_ADDR_T_64BIT || (64BIT && !PARISC))
 	depends on PCI
 
 config PCI_MSI
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From - Thu Nov 08 21:37:49 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.ports.sparc
Subject: Re: A500 boot crash in 4.2.0-rc3-00246-g763e326
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Cc: John David Anglin <dave.anglin@bell.net>,
	Yinghai Lu <yinghai@kernel.org>, Meelis Roos <mroos@linux.ee>,
	linux-parisc@vger.kernel.org,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
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To: Bjorn Helgaas <bhelgaas@google.com>
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On 20.08.2015 07:42, Bjorn Helgaas wrote:
> On Wed, Aug 19, 2015 at 04:06:38PM +0200, Helge Deller wrote:
>>> On 2015-08-19, at 1:30 AM, Yinghai Lu wrote:
>>>> On Tue, Aug 18, 2015 at 9:48 PM, Meelis Roos <mroos@linux.ee> wrote:
>>>>>> On Tue, Aug 18, 2015 at 12:47 PM, Helge Deller <deller@gmx.de> wrote:
>>>>>>
>>>>>> Then we should change to
>>>>>>
>>>>>> config PCI_BUS_ADDR_T_64BIT
>>>>>>        def_bool y if (ARCH_DMA_ADDR_T_64BIT || SPARC64)
>>>>>>        depends on PCI
>>>>>
>>>>> Why SPARC64? The problem happened on parisc.
>>>> so will not set PCI_BUS_ADDR_T_64BIT for parisc.
>>
>> I think given the current time frame it's probably the best approach to fix this problem for kernel 4.2.
>> It reverts the behaviour back to how it was before (for all arches beside SPARC64).
>> I'm still wondering if/why parisc is the only arch (in the sym53c8xx driver only!) which broke by this change...
>>
>>> I'm not sure this is optimal.  While the A500 may only have 32-bit PCI, c8000 appears to have a mix
>>> of 32 and 64-bit, and rp34XX is all 64-bit.
>>
>> True, but probably nobody of us noticed that we only used the 32-bit PCI interface even with 64bit kernel on parisc up to now?
>> pci_bus_alloc_resource() in drivers/pci/bus.c just disabled (flag=0) all 64bit resources for us.
>> But I agree, I think we need to fix drivers/parisc/lba_pci.c to correctly cope with 64bit pci addresses.
>
> I doubt we can fix the underlying issue before v4.2,

Agreed.

> but I'd at least like to avoid it.  I applied the patch below to
> for-linus.
>
> Yinghai proposed this:
>
>>>>>>        def_bool y if (ARCH_DMA_ADDR_T_64BIT || SPARC64)
>
> I did this instead:
>
> +	def_bool y if (ARCH_DMA_ADDR_T_64BIT || (64BIT && !PARISC))
>
> because (a) Yinghai's proposal suggests this change is related to
> SPARC64, which is misleading, and (b) I want to keep 64-bit bus
> addresses for all 64-bit kernels *except* PA-RISC.

Ok.
  
> I didn't mark it as Tested-by Meelis because I think he tested
> Yinghai's proposal.  But I can add that back, given confirmation.
>
>
> commit 51a660a2732c
> Author: Bjorn Helgaas <bhelgaas@google.com>
> Date:   Thu Aug 20 00:08:15 2015 -0500
>
>      PCI: Don't use 64-bit bus addresses on PA-RISC
>
>      Meelis and Helge reported that 3a9ad0b4fdcd ("PCI: Add pci_bus_addr_t")
>      caused HPMCs on A500 and hangs on rp5470.
>
>      PA-RISC does not set ARCH_DMA_ADDR_T_64BIT, even for 64-bit kernels, so
>      prior to 3a9ad0b4fdcd, we always used 32-bit PCI addresses.  After
>      3a9ad0b4fdcd, we do use 64-bit PCI addresses in 64-bit kernels, and
>      apparently there's some PA-RISC problem related to them.
>
>      Fixes: 3a9ad0b4fdcd ("PCI: Add pci_bus_addr_t")
>      Link: http://lkml.kernel.org/r/alpine.LRH.2.11.1507260929000.30065@math.ut.ee
>      Reported-by: Meelis Roos <mroos@linux.ee>
>      Reported-by: Helge Deller <deller@gmx.de>
>      Based-on-idea-by: Yinghai Lu <yinghai@kernel.org>
>      Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

Looks OK. I will test later today.

Can you please add
  CC: stable@vger.kernel.org  # v3.19+
since commit 3a9ad0b4fdcd had that too and now all kernels down to 3.19+ are
broken on parisc...

Thanks!
Helge  
  
> diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
> index 73de4ef..944f500 100644
> --- a/drivers/pci/Kconfig
> +++ b/drivers/pci/Kconfig
> @@ -2,7 +2,7 @@
>   # PCI configuration
>   #
>   config PCI_BUS_ADDR_T_64BIT
> -	def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
> +	def_bool y if (ARCH_DMA_ADDR_T_64BIT || (64BIT && !PARISC))
>   	depends on PCI
>
>   config PCI_MSI

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From: Yinghai Lu <yinghai@kernel.org>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.ports.parisc,gmane.linux.kernel.pci
Subject: Re: Re: A500 boot crash in 4.2.0-rc3-00246-g763e326
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To: Bjorn Helgaas <bhelgaas@google.com>
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On Wed, Aug 19, 2015 at 10:42 PM, Bjorn Helgaas <bhelgaas@google.com> wrote:

> commit 51a660a2732c
> Author: Bjorn Helgaas <bhelgaas@google.com>
> Date:   Thu Aug 20 00:08:15 2015 -0500
>
>     PCI: Don't use 64-bit bus addresses on PA-RISC
>
>     Meelis and Helge reported that 3a9ad0b4fdcd ("PCI: Add pci_bus_addr_t")
>     caused HPMCs on A500 and hangs on rp5470.
>
>     PA-RISC does not set ARCH_DMA_ADDR_T_64BIT, even for 64-bit kernels, so
>     prior to 3a9ad0b4fdcd, we always used 32-bit PCI addresses.  After
>     3a9ad0b4fdcd, we do use 64-bit PCI addresses in 64-bit kernels, and
>     apparently there's some PA-RISC problem related to them.
>
>     Fixes: 3a9ad0b4fdcd ("PCI: Add pci_bus_addr_t")
>     Link: http://lkml.kernel.org/r/alpine.LRH.2.11.1507260929000.30065@math.ut.ee
>     Reported-by: Meelis Roos <mroos@linux.ee>
>     Reported-by: Helge Deller <deller@gmx.de>
>     Based-on-idea-by: Yinghai Lu <yinghai@kernel.org>
>     Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
>
> diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
> index 73de4ef..944f500 100644
> --- a/drivers/pci/Kconfig
> +++ b/drivers/pci/Kconfig
> @@ -2,7 +2,7 @@
>  # PCI configuration
>  #
>  config PCI_BUS_ADDR_T_64BIT
> -       def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
> +       def_bool y if (ARCH_DMA_ADDR_T_64BIT || (64BIT && !PARISC))
>         depends on PCI
>
>  config PCI_MSI

Yes, that is better.

Acked-by: Yinghai Lu <yinghai@kernel.org>
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.ports.sparc
Subject: Re: A500 boot crash in 4.2.0-rc3-00246-g763e326
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Cc: John David Anglin <dave.anglin@bell.net>,
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To: Yinghai Lu <yinghai@kernel.org>,
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On 20.08.2015 21:31, Yinghai Lu wrote:
> On Wed, Aug 19, 2015 at 10:42 PM, Bjorn Helgaas <bhelgaas@google.com> wrote:
>
>> commit 51a660a2732c
>> Author: Bjorn Helgaas <bhelgaas@google.com>
>> Date:   Thu Aug 20 00:08:15 2015 -0500
>>
>>      PCI: Don't use 64-bit bus addresses on PA-RISC
>>
>>      Meelis and Helge reported that 3a9ad0b4fdcd ("PCI: Add pci_bus_addr_t")
>>      caused HPMCs on A500 and hangs on rp5470.
>>
>>      PA-RISC does not set ARCH_DMA_ADDR_T_64BIT, even for 64-bit kernels, so
>>      prior to 3a9ad0b4fdcd, we always used 32-bit PCI addresses.  After
>>      3a9ad0b4fdcd, we do use 64-bit PCI addresses in 64-bit kernels, and
>>      apparently there's some PA-RISC problem related to them.
>>
>>      Fixes: 3a9ad0b4fdcd ("PCI: Add pci_bus_addr_t")
>>      Link: http://lkml.kernel.org/r/alpine.LRH.2.11.1507260929000.30065@math.ut.ee
>>      Reported-by: Meelis Roos <mroos@linux.ee>
>>      Reported-by: Helge Deller <deller@gmx.de>
>>      Based-on-idea-by: Yinghai Lu <yinghai@kernel.org>
>>      Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
>>
>> diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
>> index 73de4ef..944f500 100644
>> --- a/drivers/pci/Kconfig
>> +++ b/drivers/pci/Kconfig
>> @@ -2,7 +2,7 @@
>>   # PCI configuration
>>   #
>>   config PCI_BUS_ADDR_T_64BIT
>> -       def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
>> +       def_bool y if (ARCH_DMA_ADDR_T_64BIT || (64BIT && !PARISC))
>>          depends on PCI
>>
>>   config PCI_MSI
>
> Yes, that is better.
>
> Acked-by: Yinghai Lu <yinghai@kernel.org>


Tested-by: Helge Deller <deller@gmx.de>
   and please add:
CC: stable@vger.kernel.org  # v3.19+

Helge

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From - Thu Nov 08 21:37:49 2018
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From: Bjorn Helgaas <bhelgaas@google.com>
Newsgroups: gmane.linux.kernel.pci,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: Re: A500 boot crash in 4.2.0-rc3-00246-g763e326
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Cc: Yinghai Lu <yinghai@kernel.org>,
	John David Anglin <dave.anglin@bell.net>,
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To: Helge Deller <deller@gmx.de>
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On Thu, Aug 20, 2015 at 2:15 PM, Helge Deller <deller@gmx.de> wrote:
> On 20.08.2015 21:31, Yinghai Lu wrote:
>>
>> On Wed, Aug 19, 2015 at 10:42 PM, Bjorn Helgaas <bhelgaas@google.com>
>> wrote:
>>
>>> commit 51a660a2732c
>>> Author: Bjorn Helgaas <bhelgaas@google.com>
>>> Date:   Thu Aug 20 00:08:15 2015 -0500
>>>
>>>      PCI: Don't use 64-bit bus addresses on PA-RISC
>>>
>>>      Meelis and Helge reported that 3a9ad0b4fdcd ("PCI: Add
>>> pci_bus_addr_t")
>>>      caused HPMCs on A500 and hangs on rp5470.
>>>
>>>      PA-RISC does not set ARCH_DMA_ADDR_T_64BIT, even for 64-bit kernels,
>>> so
>>>      prior to 3a9ad0b4fdcd, we always used 32-bit PCI addresses.  After
>>>      3a9ad0b4fdcd, we do use 64-bit PCI addresses in 64-bit kernels, and
>>>      apparently there's some PA-RISC problem related to them.
>>>
>>>      Fixes: 3a9ad0b4fdcd ("PCI: Add pci_bus_addr_t")
>>>      Link:
>>> http://lkml.kernel.org/r/alpine.LRH.2.11.1507260929000.30065@math.ut.ee
>>>      Reported-by: Meelis Roos <mroos@linux.ee>
>>>      Reported-by: Helge Deller <deller@gmx.de>
>>>      Based-on-idea-by: Yinghai Lu <yinghai@kernel.org>
>>>      Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
>>>
>>> diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
>>> index 73de4ef..944f500 100644
>>> --- a/drivers/pci/Kconfig
>>> +++ b/drivers/pci/Kconfig
>>> @@ -2,7 +2,7 @@
>>>   # PCI configuration
>>>   #
>>>   config PCI_BUS_ADDR_T_64BIT
>>> -       def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
>>> +       def_bool y if (ARCH_DMA_ADDR_T_64BIT || (64BIT && !PARISC))
>>>          depends on PCI
>>>
>>>   config PCI_MSI
>>
>>
>> Yes, that is better.
>>
>> Acked-by: Yinghai Lu <yinghai@kernel.org>
>
>
>
> Tested-by: Helge Deller <deller@gmx.de>
>   and please add:
> CC: stable@vger.kernel.org  # v3.19+

Done, thanks for testing this!

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let us talk
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Subject: Re: [PATCH -next] parisc: Define ioremap_uc and ioremap_wc
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
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ping ... the problem fixed with this patch still affects next-20150821.

Guenter

On Fri, Jul 31, 2015 at 07:34:46PM -0700, Guenter Roeck wrote:
> Commit 3cc2dac5be3f ("drivers/video/fbdev/atyfb: Replace MTRR UC hole
> with strong UC") introduces calls to ioremap_wc and ioremap_uc. This
> causes build failures with parisc:allmodconfig. Map the missing
> functions to ioremap_nocache.
> 
> Fixes: 3cc2dac5be3f ("drivers/video/fbdev/atyfb:
> 	Replace MTRR UC hole with strong UC")
> Cc: Luis R. Rodriguez <mcgrof@suse.com>
> Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  arch/parisc/include/asm/io.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
> index 8cd0abf28ffb..1a16f1d1075f 100644
> --- a/arch/parisc/include/asm/io.h
> +++ b/arch/parisc/include/asm/io.h
> @@ -137,6 +137,8 @@ static inline void __iomem * ioremap(unsigned long offset, unsigned long size)
>  	return __ioremap(offset, size, _PAGE_NO_CACHE);
>  }
>  #define ioremap_nocache(off, sz)	ioremap((off), (sz))
> +#define ioremap_wc			ioremap_nocache
> +#define ioremap_uc			ioremap_nocache
>  
>  extern void iounmap(const volatile void __iomem *addr);
>  
> -- 
> 2.1.4
> 
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch
Subject: [PATCH v8 2/6] mm: mlock: Add new mlock system call
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/137732>

With the refactored mlock code, introduce a new system call for mlock.
The new call will allow the user to specify what lock states are being
added.  mlock2 is trivial at the moment, but a follow on patch will add
a new mlock state making it useful.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
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Cc: linux-mm@kvack.org
---
 arch/x86/entry/syscalls/syscall_32.tbl | 1 +
 arch/x86/entry/syscalls/syscall_64.tbl | 1 +
 include/linux/syscalls.h               | 2 ++
 include/uapi/asm-generic/unistd.h      | 4 +++-
 kernel/sys_ni.c                        | 1 +
 mm/mlock.c                             | 8 ++++++++
 6 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index ef8187f..8e06da6 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -365,3 +365,4 @@
 356	i386	memfd_create		sys_memfd_create
 357	i386	bpf			sys_bpf
 358	i386	execveat		sys_execveat			stub32_execveat
+360	i386	mlock2			sys_mlock2
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 9ef32d5..67601e7 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -329,6 +329,7 @@
 320	common	kexec_file_load		sys_kexec_file_load
 321	common	bpf			sys_bpf
 322	64	execveat		stub_execveat
+324	common	mlock2			sys_mlock2
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index b45c45b..56a3d59 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -884,4 +884,6 @@ asmlinkage long sys_execveat(int dfd, const char __user *filename,
 			const char __user *const __user *argv,
 			const char __user *const __user *envp, int flags);
 
+asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
+
 #endif
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index e016bd9..14a6013 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -709,9 +709,11 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
 __SYSCALL(__NR_bpf, sys_bpf)
 #define __NR_execveat 281
 __SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
+#define __NR_mlock2 282
+__SYSCALL(__NR_mlock2, sys_mlock2)
 
 #undef __NR_syscalls
-#define __NR_syscalls 282
+#define __NR_syscalls 283
 
 /*
  * All syscalls below here should go away really,
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 7995ef5..4818b71 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -193,6 +193,7 @@ cond_syscall(sys_mlock);
 cond_syscall(sys_munlock);
 cond_syscall(sys_mlockall);
 cond_syscall(sys_munlockall);
+cond_syscall(sys_mlock2);
 cond_syscall(sys_mincore);
 cond_syscall(sys_madvise);
 cond_syscall(sys_mremap);
diff --git a/mm/mlock.c b/mm/mlock.c
index 5692ee5..3094f27 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -643,6 +643,14 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 	return do_mlock(start, len, VM_LOCKED);
 }
 
+SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
+{
+	if (flags)
+		return -EINVAL;
+
+	return do_mlock(start, len, VM_LOCKED);
+}
+
 SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 {
 	int ret;
-- 
1.9.1

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From - Thu Nov 08 21:37:50 2018
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X-Mozilla-Keys:                                                                                 
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH v8 0/6] Allow user to request memory to be locked on page fault
Date: Wed, 26 Aug 2015 14:24:19 -0400
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Cc: Eric B Munson <emunson@akamai.com>,
	Shuah Khan <shuahkh@osg.samsung.com>,
	Michal Hocko <mhocko@suse.cz>,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	Vlastimil Babka <vbabka@suse.cz>,
	Jonathan Corbet <corbet@lwn.net>,
	Ralf Baechle <ralf@linux-mips.org>,
	Andrea Arcangeli <aarcange@redhat.com>,
	linux-alpha@vger.kernel.org,
	linux-kernel@vger.kernel.org,
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	linux-parisc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org,
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	linux-xtensa@linux-xtensa.org,
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	linux-arch@vger.kernel.org,
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To: Andrew Morton <akpm@linux-foundation.org>
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Xref: news.gmane.org gmane.linux.kernel.mm:137733 gmane.linux.ports.alpha:3362 gmane.linux.kernel:2027282 gmane.linux.ports.mips.general:50180 gmane.linux.ports.parisc:25988 gmane.linux.ports.ppc64.devel:117370 gmane.linux.ports.sparc:21526 gmane.linux.kernel.cross-arch:28968 gmane.linux.kernel.api:13686
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/137733>

mlock() allows a user to control page out of program memory, but this
comes at the cost of faulting in the entire mapping when it is
allocated.  For large mappings where the entire area is not necessary
this is not ideal.  Instead of forcing all locked pages to be present
when they are allocated, this set creates a middle ground.  Pages are
marked to be placed on the unevictable LRU (locked) when they are first
used, but they are not faulted in by the mlock call.

This series introduces a new mlock() system call that takes a flags
argument along with the start address and size.  This flags argument
gives the caller the ability to request memory be locked in the
traditional way, or to be locked after the page is faulted in.  A new
MCL flag is added to mirror the lock on fault behavior from mlock() in
mlockall().

There are two main use cases that this set covers.  The first is the
security focussed mlock case.  A buffer is needed that cannot be written
to swap.  The maximum size is known, but on average the memory used is
significantly less than this maximum.  With lock on fault, the buffer
is guaranteed to never be paged out without consuming the maximum size
every time such a buffer is created.

The second use case is focussed on performance.  Portions of a large
file are needed and we want to keep the used portions in memory once
accessed.  This is the case for large graphical models where the path
through the graph is not known until run time.  The entire graph is
unlikely to be used in a given invocation, but once a node has been
used it needs to stay resident for further processing.  Given these
constraints we have a number of options.  We can potentially waste a
large amount of memory by mlocking the entire region (this can also
cause a significant stall at startup as the entire file is read in).
We can mlock every page as we access them without tracking if the page
is already resident but this introduces large overhead for each access.
The third option is mapping the entire region with PROT_NONE and using
a signal handler for SIGSEGV to mprotect(PROT_READ) and mlock() the
needed page.  Doing this page at a time adds a significant performance
penalty.  Batching can be used to mitigate this overhead, but in order
to safely avoid trying to mprotect pages outside of the mapping, the
boundaries of each mapping to be used in this way must be tracked and
available to the signal handler.  This is precisely what the mm system
in the kernel should already be doing.

For mlock(MLOCK_ONFAULT) the user is charged against RLIMIT_MEMLOCK as
if mlock(MLOCK_LOCKED) or mmap(MAP_LOCKED) was used, so when the VMA is
created not when the pages are faulted in.  For mlockall(MCL_ONFAULT)
the user is charged as if MCL_FUTURE was used.  This decision was made
to keep the accounting checks out of the page fault path.

To illustrate the benefit of this set I wrote a test program that mmaps
a 5 GB file filled with random data and then makes 15,000,000 accesses
to random addresses in that mapping.  The test program was run 20 times
for each setup.  Results are reported for two program portions, setup
and execution.  The setup phase is calling mmap and optionally mlock on
the entire region.  For most experiments this is trivial, but it
highlights the cost of faulting in the entire region.  Results are
averages across the 20 runs in milliseconds.

mmap with mlock(MLOCK_LOCKED) on entire range:
Setup avg:      8228.666
Processing avg: 8274.257

mmap with mlock(MLOCK_LOCKED) before each access:
Setup avg:      0.113
Processing avg: 90993.552

mmap with PROT_NONE and signal handler and batch size of 1 page:
With the default value in max_map_count, this gets ENOMEM as I attempt
to change the permissions, after upping the sysctl significantly I get:
Setup avg:      0.058
Processing avg: 69488.073
mmap with PROT_NONE and signal handler and batch size of 8 pages:
Setup avg:      0.068
Processing avg: 38204.116

mmap with PROT_NONE and signal handler and batch size of 16 pages:
Setup avg:      0.044
Processing avg: 29671.180

mmap with mlock(MLOCK_ONFAULT) on entire range:
Setup avg:      0.189
Processing avg: 17904.899

The signal handler in the batch cases faulted in memory in two steps to
avoid having to know the start and end of the faulting mapping.  The
first step covers the page that caused the fault as we know that it will
be possible to lock.  The second step speculatively tries to mlock and
mprotect the batch size - 1 pages that follow.  There may be a clever
way to avoid this without having the program track each mapping to be
covered by this handeler in a globally accessible structure, but I could
not find it.  It should be noted that with a large enough batch size
this two step fault handler can still cause the program to crash if it
reaches far beyond the end of the mapping.

These results show that if the developer knows that a majority of the
mapping will be used, it is better to try and fault it in at once,
otherwise mlock(MLOCK_ONFAULT) is significantly faster.

The performance cost of these patches are minimal on the two benchmarks
I have tested (stream and kernbench).  The following are the average
values across 20 runs of stream and 10 runs of kernbench after a warmup
run whose results were discarded.

Avg throughput in MB/s from stream using 1000000 element arrays
Test     4.2-rc1      4.2-rc1+lock-on-fault
Copy:    10,566.5     10,421
Scale:   10,685       10,503.5
Add:     12,044.1     11,814.2
Triad:   12,064.8     11,846.3

Kernbench optimal load
                 4.2-rc1  4.2-rc1+lock-on-fault
Elapsed Time     78.453   78.991
User Time        64.2395  65.2355
System Time      9.7335   9.7085
Context Switches 22211.5  22412.1
Sleeps           14965.3  14956.1

---
Changes from V7:
* Do not expose the VM_LOCKONFAULT flag to userspace via proc
* Fix mlock2 self tests

Changes from V6:
* Bump the x86 system call number to avoid collision with userfaultfd
* Fix FOLL_POPULATE and FOLL_MLOCK usage when mmap is called with
 MAP_POPULATE
* Add documentation for the proc smaps change
* checkpatch fixes

Changes from V5:
Drop MLOCK_LOCKED flag
* MLOCK_ONFAULT and MCL_ONFAULT are treated as a modifier to other locking
 operations, mirroring the relationship between VM_LOCKED and
 VM_LOCKONFAULT
* Drop mmap flag and related tests
* Fix clearing of MCL_CURRENT when mlockall is called with MCL_FUTURE,
 mlockall behavoir now matches the old behavior WRT to ordering

Changes from V4:
Drop all architectures for new sys call entries except x86[_64] and MIPS
Drop munlock2 and munlockall2
Make VM_LOCKONFAULT a modifier to VM_LOCKED only to simplify book keeping
Adjust tests to match

Changes from V3:
Ensure that pages present when mlock2(MLOCK_ONFAULT) is called are locked
Ensure that VM_LOCKONFAULT is handled in cases that used to only check VM_LOCKED
Add tests for new system calls
Add missing syscall entries, fix NR_syscalls on multiple arch's
Add missing MAP_LOCKONFAULT for tile

Changes from V2:
Added new system calls for mlock, munlock, and munlockall with added
flags arguments for controlling how memory is locked or unlocked.

Eric B Munson (6):
  mm: mlock: Refactor mlock, munlock, and munlockall code
  mm: mlock: Add new mlock system call
  mm: Introduce VM_LOCKONFAULT
  mm: mlock: Add mlock flags to enable VM_LOCKONFAULT usage
  selftests: vm: Add tests for lock on fault
  mips: Add entry for new mlock2 syscall

 arch/alpha/include/uapi/asm/mman.h          |   3 +
 arch/mips/include/uapi/asm/mman.h           |   6 +
 arch/mips/include/uapi/asm/unistd.h         |  15 +-
 arch/mips/kernel/scall32-o32.S              |   1 +
 arch/mips/kernel/scall64-64.S               |   1 +
 arch/mips/kernel/scall64-n32.S              |   1 +
 arch/mips/kernel/scall64-o32.S              |   1 +
 arch/parisc/include/uapi/asm/mman.h         |   3 +
 arch/powerpc/include/uapi/asm/mman.h        |   1 +
 arch/sparc/include/uapi/asm/mman.h          |   1 +
 arch/tile/include/uapi/asm/mman.h           |   1 +
 arch/x86/entry/syscalls/syscall_32.tbl      |   1 +
 arch/x86/entry/syscalls/syscall_64.tbl      |   1 +
 arch/xtensa/include/uapi/asm/mman.h         |   6 +
 include/linux/mm.h                          |   5 +
 include/linux/syscalls.h                    |   2 +
 include/uapi/asm-generic/mman-common.h      |   5 +
 include/uapi/asm-generic/mman.h             |   1 +
 include/uapi/asm-generic/unistd.h           |   4 +-
 kernel/fork.c                               |   2 +-
 kernel/sys_ni.c                             |   1 +
 mm/debug.c                                  |   1 +
 mm/gup.c                                    |  10 +-
 mm/huge_memory.c                            |   2 +-
 mm/hugetlb.c                                |   4 +-
 mm/mlock.c                                  |  86 +++-
 mm/mmap.c                                   |   2 +-
 mm/rmap.c                                   |   6 +-
 tools/testing/selftests/vm/Makefile         |   2 +
 tools/testing/selftests/vm/mlock2-tests.c   | 737 ++++++++++++++++++++++++++++
 tools/testing/selftests/vm/on-fault-limit.c |  47 ++
 tools/testing/selftests/vm/run_vmtests      |  22 +
 32 files changed, 941 insertions(+), 40 deletions(-)
 create mode 100644 tools/testing/selftests/vm/mlock2-tests.c
 create mode 100644 tools/testing/selftests/vm/on-fault-limit.c

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org

-- 
1.9.1

--
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From - Thu Nov 08 21:37:50 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH v8 4/6] mm: mlock: Add mlock flags to enable VM_LOCKONFAULT usage
Date: Wed, 26 Aug 2015 14:24:23 -0400
Lines: 292
Approved: news@gmane.org
Message-ID: <1440613465-30393-5-git-send-email-emunson@akamai.com>
References: <1440613465-30393-1-git-send-email-emunson@akamai.com>
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Cc: Eric B Munson <emunson@akamai.com>,
	Michal Hocko <mhocko@suse.cz>,
	Vlastimil Babka <vbabka@suse.cz>,
	Jonathan Corbet <corbet@lwn.net>,
	"Kirill A. Shutemov" <kirill@shutemov.name>,
	linux-alpha@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-mips@linux-mips.org,
	linux-parisc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org,
	sparclinux@vger.kernel.org,
	linux-xtensa@linux-xtensa.org,
	linux-arch@vger.kernel.org,
	linux-api@vger.kernel.org,
	linux-mm@kvack.org
To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/137736>

The previous patch introduced a flag that specified pages in a VMA
should be placed on the unevictable LRU, but they should not be made
present when the area is created.  This patch adds the ability to set
this state via the new mlock system calls.

We add MLOCK_ONFAULT for mlock2 and MCL_ONFAULT for mlockall.
MLOCK_ONFAULT will set the VM_LOCKONFAULT modifier for VM_LOCKED.
MCL_ONFAULT should be used as a modifier to the two other mlockall
flags.  When used with MCL_CURRENT, all current mappings will be marked
with VM_LOCKED | VM_LOCKONFAULT.  When used with MCL_FUTURE, the
mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.  When used
with both MCL_CURRENT and MCL_FUTURE, all current mappings and
mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.

Prior to this patch, mlockall() will unconditionally clear the
mm->def_flags any time it is called without MCL_FUTURE.  This behavior
is maintained after adding MCL_ONFAULT.  If a call to
mlockall(MCL_FUTURE) is followed by mlockall(MCL_CURRENT), the
mm->def_flags will be cleared and new VMAs will be unlocked.  This
remains true with or without MCL_ONFAULT in either mlockall()
invocation.

munlock() will unconditionally clear both vma flags.  munlockall()
unconditionally clears for VMA flags on all VMAs and in the
mm->def_flags field.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
Cc: linux-mm@kvack.org
---
 arch/alpha/include/uapi/asm/mman.h     |  3 ++
 arch/mips/include/uapi/asm/mman.h      |  6 ++++
 arch/parisc/include/uapi/asm/mman.h    |  3 ++
 arch/powerpc/include/uapi/asm/mman.h   |  1 +
 arch/sparc/include/uapi/asm/mman.h     |  1 +
 arch/tile/include/uapi/asm/mman.h      |  1 +
 arch/xtensa/include/uapi/asm/mman.h    |  6 ++++
 include/uapi/asm-generic/mman-common.h |  5 ++++
 include/uapi/asm-generic/mman.h        |  1 +
 mm/mlock.c                             | 52 +++++++++++++++++++++++++---------
 10 files changed, 66 insertions(+), 13 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..f2f9496 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -37,6 +37,9 @@
 
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
+#define MCL_ONFAULT	32768		/* lock all pages that are faulted in */
+
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..97c03f4 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -61,6 +61,12 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
+/*
+ * Flags for mlock
+ */
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..ecc3ae1 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -31,6 +31,9 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 6ea26df..03c06ba 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -22,6 +22,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 0b14df3..9765896 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -17,6 +17,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index 81b8fc3..63ee13f 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -36,6 +36,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..360944e 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -74,6 +74,12 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
+/*
+ * Flags for mlock
+ */
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h
index ddc3b36..a74dd84 100644
--- a/include/uapi/asm-generic/mman-common.h
+++ b/include/uapi/asm-generic/mman-common.h
@@ -25,6 +25,11 @@
 # define MAP_UNINITIALIZED 0x0		/* Don't support this flag */
 #endif
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
+
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_INVALIDATE	2		/* invalidate the caches */
 #define MS_SYNC		4		/* synchronous memory sync */
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index e9fe6fd..7162cd4 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -17,5 +17,6 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/mm/mlock.c b/mm/mlock.c
index 7efe27d..0747663 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -506,7 +506,8 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
 
 	if (newflags == vma->vm_flags || (vma->vm_flags & VM_SPECIAL) ||
 	    is_vm_hugetlb_page(vma) || vma == get_gate_vma(current->mm))
-		goto out;	/* don't set VM_LOCKED,  don't count */
+		/* don't set VM_LOCKED or VM_LOCKONFAULT and don't count */
+		goto out;
 
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,
@@ -576,7 +577,7 @@ static int apply_vma_lock_flags(unsigned long start, size_t len,
 		prev = vma;
 
 	for (nstart = start ; ; ) {
-		vm_flags_t newflags = vma->vm_flags & ~VM_LOCKED;
+		vm_flags_t newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK;
 
 		newflags |= flags;
 
@@ -645,10 +646,15 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 
 SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
 {
-	if (flags)
+	vm_flags_t vm_flags = VM_LOCKED;
+
+	if (flags & ~MLOCK_ONFAULT)
 		return -EINVAL;
 
-	return do_mlock(start, len, VM_LOCKED);
+	if (flags & MLOCK_ONFAULT)
+		vm_flags |= VM_LOCKONFAULT;
+
+	return do_mlock(start, len, vm_flags);
 }
 
 SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
@@ -665,24 +671,43 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 	return ret;
 }
 
+/*
+ * Take the MCL_* flags passed into mlockall (or 0 if called from munlockall)
+ * and translate into the appropriate modifications to mm->def_flags and/or the
+ * flags for all current VMAs.
+ *
+ * There are a couple of subtleties with this.  If mlockall() is called multiple
+ * times with different flags, the values do not necessarily stack.  If mlockall
+ * is called once including the MCL_FUTURE flag and then a second time without
+ * it, VM_LOCKED and VM_LOCKONFAULT will be cleared from mm->def_flags.
+ */
 static int apply_mlockall_flags(int flags)
 {
 	struct vm_area_struct * vma, * prev = NULL;
+	vm_flags_t to_add = 0;
 
-	if (flags & MCL_FUTURE)
+	current->mm->def_flags &= VM_LOCKED_CLEAR_MASK;
+	if (flags & MCL_FUTURE) {
 		current->mm->def_flags |= VM_LOCKED;
-	else
-		current->mm->def_flags &= ~VM_LOCKED;
 
-	if (flags == MCL_FUTURE)
-		goto out;
+		if (flags & MCL_ONFAULT)
+			current->mm->def_flags |= VM_LOCKONFAULT;
+
+		if (!(flags & MCL_CURRENT))
+			goto out;
+	}
+
+	if (flags & MCL_CURRENT) {
+		to_add |= VM_LOCKED;
+		if (flags & MCL_ONFAULT)
+			to_add |= VM_LOCKONFAULT;
+	}
 
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
-		if (flags & MCL_CURRENT)
-			newflags |= VM_LOCKED;
+		newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK;
+		newflags |= to_add;
 
 		/* Ignore errors */
 		mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);
@@ -697,7 +722,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	unsigned long lock_limit;
 	int ret = -EINVAL;
 
-	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
+	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT)) ||
+	    flags == MCL_ONFAULT)
 		goto out;
 
 	ret = -EPERM;
-- 
1.9.1

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From - Thu Nov 08 21:37:50 2018
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From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.api,gmane.linux.kernel
Subject: [RFC PATCH 9/9] parisc: allocate sys_membarrier system call number
Date: Thu, 27 Aug 2015 13:56:55 -0400
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
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To: Andrew Morton <akpm@linux-foundation.org>,
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[ Untested on this architecture. To try it out: fetch linux-next/akpm,
  apply this patch, build/run a membarrier-enabled kernel, and do make
  kselftest. ]

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: linux-api@vger.kernel.org
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: Helge Deller <deller@gmx.de>
CC: linux-parisc@vger.kernel.org
---
 arch/parisc/include/uapi/asm/unistd.h | 3 ++-
 arch/parisc/kernel/syscall_table.S    | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 2e639d7..dadcada 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -358,8 +358,9 @@
 #define __NR_memfd_create	(__NR_Linux + 340)
 #define __NR_bpf		(__NR_Linux + 341)
 #define __NR_execveat		(__NR_Linux + 342)
+#define __NR_membarrier		(__NR_Linux + 343)
 
-#define __NR_Linux_syscalls	(__NR_execveat + 1)
+#define __NR_Linux_syscalls	(__NR_membarrier + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 8eefb12..2faa43b 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -438,6 +438,7 @@
 	ENTRY_SAME(memfd_create)	/* 340 */
 	ENTRY_SAME(bpf)
 	ENTRY_COMP(execveat)
+	ENTRY_COMP(membarrier)
 
 
 .ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
-- 
1.9.1

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From - Thu Nov 08 21:37:50 2018
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What time can i call you?

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From - Thu Nov 08 21:37:50 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api,gmane.linux.kernel.mm
Subject: Re: [PATCH v8 4/6] mm: mlock: Add mlock flags to enable
 VM_LOCKONFAULT usage
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References: <1440613465-30393-1-git-send-email-emunson@akamai.com>
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Cc: Andrew Morton <akpm@linux-foundation.org>,
	Vlastimil Babka <vbabka@suse.cz>,
	Jonathan Corbet <corbet@lwn.net>,
	"Kirill A. Shutemov" <kirill@shutemov.name>,
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To: Eric B Munson <emunson@akamai.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:25993 gmane.linux.ports.alpha:3375 gmane.linux.kernel:2028638 gmane.linux.ports.mips.general:50216 gmane.linux.ports.ppc64.devel:117442 gmane.linux.ports.sparc:21537 gmane.linux.kernel.cross-arch:29000 gmane.linux.kernel.api:13719 gmane.linux.kernel.mm:137816
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/25993>

On Wed 26-08-15 14:24:23, Eric B Munson wrote:
> The previous patch introduced a flag that specified pages in a VMA
> should be placed on the unevictable LRU, but they should not be made
> present when the area is created.  This patch adds the ability to set
> this state via the new mlock system calls.
> 
> We add MLOCK_ONFAULT for mlock2 and MCL_ONFAULT for mlockall.
> MLOCK_ONFAULT will set the VM_LOCKONFAULT modifier for VM_LOCKED.
> MCL_ONFAULT should be used as a modifier to the two other mlockall
> flags.  When used with MCL_CURRENT, all current mappings will be marked
> with VM_LOCKED | VM_LOCKONFAULT.  When used with MCL_FUTURE, the
> mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.  When used
> with both MCL_CURRENT and MCL_FUTURE, all current mappings and
> mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.
> 
> Prior to this patch, mlockall() will unconditionally clear the
> mm->def_flags any time it is called without MCL_FUTURE.  This behavior
> is maintained after adding MCL_ONFAULT.  If a call to
> mlockall(MCL_FUTURE) is followed by mlockall(MCL_CURRENT), the
> mm->def_flags will be cleared and new VMAs will be unlocked.  This
> remains true with or without MCL_ONFAULT in either mlockall()
> invocation.
> 
> munlock() will unconditionally clear both vma flags.  munlockall()
> unconditionally clears for VMA flags on all VMAs and in the
> mm->def_flags field.
> 
> Signed-off-by: Eric B Munson <emunson@akamai.com>
> Acked-by: Vlastimil Babka <vbabka@suse.cz>
> Cc: Michal Hocko <mhocko@suse.cz>
> Cc: Vlastimil Babka <vbabka@suse.cz>
> Cc: Jonathan Corbet <corbet@lwn.net>
> Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
> Cc: linux-alpha@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-mips@linux-mips.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: sparclinux@vger.kernel.org
> Cc: linux-xtensa@linux-xtensa.org
> Cc: linux-arch@vger.kernel.org
> Cc: linux-api@vger.kernel.org
> Cc: linux-mm@kvack.org

I haven't checked the arch specific bits but the core part looks good to
me.

Acked-by: Michal Hocko <mhocko@suse.com>

> ---
>  arch/alpha/include/uapi/asm/mman.h     |  3 ++
>  arch/mips/include/uapi/asm/mman.h      |  6 ++++
>  arch/parisc/include/uapi/asm/mman.h    |  3 ++
>  arch/powerpc/include/uapi/asm/mman.h   |  1 +
>  arch/sparc/include/uapi/asm/mman.h     |  1 +
>  arch/tile/include/uapi/asm/mman.h      |  1 +
>  arch/xtensa/include/uapi/asm/mman.h    |  6 ++++
>  include/uapi/asm-generic/mman-common.h |  5 ++++
>  include/uapi/asm-generic/mman.h        |  1 +
>  mm/mlock.c                             | 52 +++++++++++++++++++++++++---------
>  10 files changed, 66 insertions(+), 13 deletions(-)
> 
> diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
> index 0086b47..f2f9496 100644
> --- a/arch/alpha/include/uapi/asm/mman.h
> +++ b/arch/alpha/include/uapi/asm/mman.h
> @@ -37,6 +37,9 @@
>  
>  #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
>  #define MCL_FUTURE	16384		/* lock all additions to address space */
> +#define MCL_ONFAULT	32768		/* lock all pages that are faulted in */
> +
> +#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
>  
>  #define MADV_NORMAL	0		/* no further special treatment */
>  #define MADV_RANDOM	1		/* expect random page references */
> diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
> index cfcb876..97c03f4 100644
> --- a/arch/mips/include/uapi/asm/mman.h
> +++ b/arch/mips/include/uapi/asm/mman.h
> @@ -61,6 +61,12 @@
>   */
>  #define MCL_CURRENT	1		/* lock all current mappings */
>  #define MCL_FUTURE	2		/* lock all future mappings */
> +#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
> +
> +/*
> + * Flags for mlock
> + */
> +#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
>  
>  #define MADV_NORMAL	0		/* no further special treatment */
>  #define MADV_RANDOM	1		/* expect random page references */
> diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
> index 294d251..ecc3ae1 100644
> --- a/arch/parisc/include/uapi/asm/mman.h
> +++ b/arch/parisc/include/uapi/asm/mman.h
> @@ -31,6 +31,9 @@
>  
>  #define MCL_CURRENT	1		/* lock all current mappings */
>  #define MCL_FUTURE	2		/* lock all future mappings */
> +#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
> +
> +#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
>  
>  #define MADV_NORMAL     0               /* no further special treatment */
>  #define MADV_RANDOM     1               /* expect random page references */
> diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
> index 6ea26df..03c06ba 100644
> --- a/arch/powerpc/include/uapi/asm/mman.h
> +++ b/arch/powerpc/include/uapi/asm/mman.h
> @@ -22,6 +22,7 @@
>  
>  #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
>  #define MCL_FUTURE      0x4000          /* lock all additions to address space */
> +#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
>  
>  #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
>  #define MAP_NONBLOCK	0x10000		/* do not block on IO */
> diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
> index 0b14df3..9765896 100644
> --- a/arch/sparc/include/uapi/asm/mman.h
> +++ b/arch/sparc/include/uapi/asm/mman.h
> @@ -17,6 +17,7 @@
>  
>  #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
>  #define MCL_FUTURE      0x4000          /* lock all additions to address space */
> +#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
>  
>  #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
>  #define MAP_NONBLOCK	0x10000		/* do not block on IO */
> diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
> index 81b8fc3..63ee13f 100644
> --- a/arch/tile/include/uapi/asm/mman.h
> +++ b/arch/tile/include/uapi/asm/mman.h
> @@ -36,6 +36,7 @@
>   */
>  #define MCL_CURRENT	1		/* lock all current mappings */
>  #define MCL_FUTURE	2		/* lock all future mappings */
> +#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
>  
>  
>  #endif /* _ASM_TILE_MMAN_H */
> diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
> index 201aec0..360944e 100644
> --- a/arch/xtensa/include/uapi/asm/mman.h
> +++ b/arch/xtensa/include/uapi/asm/mman.h
> @@ -74,6 +74,12 @@
>   */
>  #define MCL_CURRENT	1		/* lock all current mappings */
>  #define MCL_FUTURE	2		/* lock all future mappings */
> +#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
> +
> +/*
> + * Flags for mlock
> + */
> +#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
>  
>  #define MADV_NORMAL	0		/* no further special treatment */
>  #define MADV_RANDOM	1		/* expect random page references */
> diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h
> index ddc3b36..a74dd84 100644
> --- a/include/uapi/asm-generic/mman-common.h
> +++ b/include/uapi/asm-generic/mman-common.h
> @@ -25,6 +25,11 @@
>  # define MAP_UNINITIALIZED 0x0		/* Don't support this flag */
>  #endif
>  
> +/*
> + * Flags for mlock
> + */
> +#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
> +
>  #define MS_ASYNC	1		/* sync memory asynchronously */
>  #define MS_INVALIDATE	2		/* invalidate the caches */
>  #define MS_SYNC		4		/* synchronous memory sync */
> diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
> index e9fe6fd..7162cd4 100644
> --- a/include/uapi/asm-generic/mman.h
> +++ b/include/uapi/asm-generic/mman.h
> @@ -17,5 +17,6 @@
>  
>  #define MCL_CURRENT	1		/* lock all current mappings */
>  #define MCL_FUTURE	2		/* lock all future mappings */
> +#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
>  
>  #endif /* __ASM_GENERIC_MMAN_H */
> diff --git a/mm/mlock.c b/mm/mlock.c
> index 7efe27d..0747663 100644
> --- a/mm/mlock.c
> +++ b/mm/mlock.c
> @@ -506,7 +506,8 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
>  
>  	if (newflags == vma->vm_flags || (vma->vm_flags & VM_SPECIAL) ||
>  	    is_vm_hugetlb_page(vma) || vma == get_gate_vma(current->mm))
> -		goto out;	/* don't set VM_LOCKED,  don't count */
> +		/* don't set VM_LOCKED or VM_LOCKONFAULT and don't count */
> +		goto out;
>  
>  	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
>  	*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,
> @@ -576,7 +577,7 @@ static int apply_vma_lock_flags(unsigned long start, size_t len,
>  		prev = vma;
>  
>  	for (nstart = start ; ; ) {
> -		vm_flags_t newflags = vma->vm_flags & ~VM_LOCKED;
> +		vm_flags_t newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK;
>  
>  		newflags |= flags;
>  
> @@ -645,10 +646,15 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
>  
>  SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
>  {
> -	if (flags)
> +	vm_flags_t vm_flags = VM_LOCKED;
> +
> +	if (flags & ~MLOCK_ONFAULT)
>  		return -EINVAL;
>  
> -	return do_mlock(start, len, VM_LOCKED);
> +	if (flags & MLOCK_ONFAULT)
> +		vm_flags |= VM_LOCKONFAULT;
> +
> +	return do_mlock(start, len, vm_flags);
>  }
>  
>  SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
> @@ -665,24 +671,43 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
>  	return ret;
>  }
>  
> +/*
> + * Take the MCL_* flags passed into mlockall (or 0 if called from munlockall)
> + * and translate into the appropriate modifications to mm->def_flags and/or the
> + * flags for all current VMAs.
> + *
> + * There are a couple of subtleties with this.  If mlockall() is called multiple
> + * times with different flags, the values do not necessarily stack.  If mlockall
> + * is called once including the MCL_FUTURE flag and then a second time without
> + * it, VM_LOCKED and VM_LOCKONFAULT will be cleared from mm->def_flags.
> + */
>  static int apply_mlockall_flags(int flags)
>  {
>  	struct vm_area_struct * vma, * prev = NULL;
> +	vm_flags_t to_add = 0;
>  
> -	if (flags & MCL_FUTURE)
> +	current->mm->def_flags &= VM_LOCKED_CLEAR_MASK;
> +	if (flags & MCL_FUTURE) {
>  		current->mm->def_flags |= VM_LOCKED;
> -	else
> -		current->mm->def_flags &= ~VM_LOCKED;
>  
> -	if (flags == MCL_FUTURE)
> -		goto out;
> +		if (flags & MCL_ONFAULT)
> +			current->mm->def_flags |= VM_LOCKONFAULT;
> +
> +		if (!(flags & MCL_CURRENT))
> +			goto out;
> +	}
> +
> +	if (flags & MCL_CURRENT) {
> +		to_add |= VM_LOCKED;
> +		if (flags & MCL_ONFAULT)
> +			to_add |= VM_LOCKONFAULT;
> +	}
>  
>  	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
>  		vm_flags_t newflags;
>  
> -		newflags = vma->vm_flags & ~VM_LOCKED;
> -		if (flags & MCL_CURRENT)
> -			newflags |= VM_LOCKED;
> +		newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK;
> +		newflags |= to_add;
>  
>  		/* Ignore errors */
>  		mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);
> @@ -697,7 +722,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
>  	unsigned long lock_limit;
>  	int ret = -EINVAL;
>  
> -	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
> +	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT)) ||
> +	    flags == MCL_ONFAULT)
>  		goto out;
>  
>  	ret = -EPERM;
> -- 
> 1.9.1

-- 
Michal Hocko
SUSE Labs
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From - Thu Nov 08 21:37:50 2018
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Subject: Re: [PATCH v8 4/6] mm: mlock: Add mlock flags to enable
 VM_LOCKONFAULT usage
Date: Fri, 28 Aug 2015 16:32:51 +0200
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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On Fri 28-08-15 16:31:30, Michal Hocko wrote:
> On Wed 26-08-15 14:24:23, Eric B Munson wrote:
> > The previous patch introduced a flag that specified pages in a VMA
> > should be placed on the unevictable LRU, but they should not be made
> > present when the area is created.  This patch adds the ability to set
> > this state via the new mlock system calls.
> > 
> > We add MLOCK_ONFAULT for mlock2 and MCL_ONFAULT for mlockall.
> > MLOCK_ONFAULT will set the VM_LOCKONFAULT modifier for VM_LOCKED.
> > MCL_ONFAULT should be used as a modifier to the two other mlockall
> > flags.  When used with MCL_CURRENT, all current mappings will be marked
> > with VM_LOCKED | VM_LOCKONFAULT.  When used with MCL_FUTURE, the
> > mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.  When used
> > with both MCL_CURRENT and MCL_FUTURE, all current mappings and
> > mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.
> > 
> > Prior to this patch, mlockall() will unconditionally clear the
> > mm->def_flags any time it is called without MCL_FUTURE.  This behavior
> > is maintained after adding MCL_ONFAULT.  If a call to
> > mlockall(MCL_FUTURE) is followed by mlockall(MCL_CURRENT), the
> > mm->def_flags will be cleared and new VMAs will be unlocked.  This
> > remains true with or without MCL_ONFAULT in either mlockall()
> > invocation.

Btw. I think we really want a man page for this new mlock call.
-- 
Michal Hocko
SUSE Labs

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From - Thu Nov 08 21:37:50 2018
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From - Thu Nov 08 21:37:51 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel.pci,gmane.linux.ports.parisc
Subject: [PATCH] PCI,parisc: Enable 64-bit bus addresses on PA-RISC
Date: Wed, 2 Sep 2015 18:17:29 +0200
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
	linux-pci@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
	Meelis Roos <mroos@linux.ee>
To: linux-parisc@vger.kernel.org
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Commit 3a9ad0b ("PCI: Add pci_bus_addr_t") unconditionally introduced usage of
64-bit PCI bus addresses on all 64-bit platforms which broke PA-RISC.

It turned out that due to enabling the 64-bit addresses, the PCI logic decided
to use the GMMIO instead of the LMMIO region. This commit simply disables
registering the GMMIO and thus we fall back to use the LMMIO region as before.

Reverts commit 45ea2a5fed6dacb9bb0558d8b21eacc1c45d5bb4
("PCI: Don't use 64-bit bus addresses on PA-RISC")

To: linux-parisc@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Meelis Roos <mroos@linux.ee>
Cc: stable@vger.kernel.org  # v3.19+
Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index dceb9dd..a32c1f6 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1556,8 +1556,11 @@ lba_driver_probe(struct parisc_device *dev)
 	if (lba_dev->hba.lmmio_space.flags)
 		pci_add_resource_offset(&resources, &lba_dev->hba.lmmio_space,
 					lba_dev->hba.lmmio_space_offset);
-	if (lba_dev->hba.gmmio_space.flags)
-		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
+	if (lba_dev->hba.gmmio_space.flags) {
+		/* pci_add_resource(&resources, &lba_dev->hba.gmmio_space); */
+		pr_warn("LBA: Not registering GMMIO space %pR\n",
+			&lba_dev->hba.gmmio_space);
+	}
 
 	pci_add_resource(&resources, &lba_dev->hba.bus_num);
 
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 944f500..73de4ef 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -2,7 +2,7 @@
 # PCI configuration
 #
 config PCI_BUS_ADDR_T_64BIT
-	def_bool y if (ARCH_DMA_ADDR_T_64BIT || (64BIT && !PARISC))
+	def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
 	depends on PCI
 
 config PCI_MSI

From - Thu Nov 08 21:37:51 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: additionally check for in_atomic() in page fault
 handler
Date: Wed, 2 Sep 2015 18:18:48 +0200
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To: linux-parisc@vger.kernel.org
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Craig Estey noticed that we didn't checked for in_atomic() in our page fault
handler like other architectures. This commit adds this check by using
faulthandler_disabled() which includes a check for pagefault_disabled() and
in_atomic().

Reported-by: Craig Estey <cae370@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 15503ad..ac6f174 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -207,7 +207,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	int fault;
 	unsigned int flags;
 
-	if (pagefault_disabled())
+	if (faulthandler_disabled())
 		goto no_context;
 
 	tsk = current;
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From - Thu Nov 08 21:37:51 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800 and
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PA8800 and PA8900 processors have a cache line length of 128 bytes.

Reported-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
index 47f11c7..a775f60 100644
--- a/arch/parisc/include/asm/cache.h
+++ b/arch/parisc/include/asm/cache.h
@@ -7,17 +7,19 @@
 
 
 /*
- * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
- * 32-byte cachelines.  The default configuration is not for SMP anyway,
- * so if you're building for SMP, you should select the appropriate
- * processor type.  There is a potential livelock danger when running
- * a machine with this value set too small, but it's more probable you'll
- * just ruin performance.
+ * Most PA 2.0 processors have 64-byte cachelines, but PA8800 and PA8900
+ * processors have a cache line length of 128 bytes.
+ * PA 1.1 processors have 32-byte cachelines.
+ * There is a potential livelock danger when running a machine with this value
+ * set too small, but it's more probable you'll just ruin performance.
  */
-#ifdef CONFIG_PA20
+#if defined(CONFIG_PA8X00)
+#define L1_CACHE_BYTES 128
+#define L1_CACHE_SHIFT 7
+#elif defined(CONFIG_PA20)
 #define L1_CACHE_BYTES 64
 #define L1_CACHE_SHIFT 6
-#else
+#else /* PA7XXX */
 #define L1_CACHE_BYTES 32
 #define L1_CACHE_SHIFT 5
 #endif

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 226f8ca9..b2bc4b7 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -19,14 +19,14 @@
 
 #ifdef CONFIG_SMP
 #include <asm/spinlock.h>
-#include <asm/cache.h>		/* we use L1_CACHE_BYTES */
+#include <asm/cache.h>		/* we use L1_CACHE_SHIFT */
 
 /* Use an array of spinlocks for our atomic_ts.
  * Hash function to index into a different SPINLOCK.
  * Since "a" is usually an address, use one spinlock per cacheline.
  */
 #  define ATOMIC_HASH_SIZE 4
-#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a)) >> L1_CACHE_SHIFT) & (ATOMIC_HASH_SIZE-1) ]))
 
 extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 
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From - Thu Nov 08 21:37:51 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Align locks for LWS syscalls to L1 cache size
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Align the locks for the Light weight syscall (LWS) which is used for
atomic userspace operations (e.g. gcc atomic builtins) on L1 cache
boundaries. This should speed up LWS calls on PA20 systems.

Reported-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 7ef22e3..80c2306 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -561,9 +561,9 @@ lws_compare_and_swap:
 	extru  %r26, 27, 4, %r20
 
 	/* Find lock to use, the hash is either one of 0 to
-	   15, multiplied by 16 (keep it 16-byte aligned)
+	   15, multiplied by L1_CACHE_BYTES (keep it L1 cache aligned)
 	   and add to the lock table offset. */
-	shlw	%r20, 4, %r20
+	shlw	%r20, L1_CACHE_SHIFT, %r20
 	add	%r20, %r28, %r20
 
 # if ENABLE_LWS_DEBUG
@@ -751,9 +751,9 @@ cas2_lock_start:
 	extru  %r26, 27, 4, %r20
 
 	/* Find lock to use, the hash is either one of 0 to
-	   15, multiplied by 16 (keep it 16-byte aligned)
+	   15, multiplied by L1_CACHE_BYTES (keep it L1 cache aligned)
 	   and add to the lock table offset. */
-	shlw	%r20, 4, %r20
+	shlw	%r20, L1_CACHE_SHIFT, %r20
 	add	%r20, %r28, %r20
 
 	rsm	PSW_SM_I, %r0			/* Disable interrupts */
@@ -931,11 +931,9 @@ END(sys_call_table64)
 ENTRY(lws_lock_start)
 	/* lws locks */
 	.rept 16
-	/* Keep locks aligned at 16-bytes */
+	/* Keep locks aligned to L1_CACHE_BYTES */
 	.word 1
-	.word 0 
-	.word 0
-	.word 0
+	.align	L1_CACHE_BYTES
 	.endr
 END(lws_lock_start)
 	.previous
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From - Thu Nov 08 21:37:51 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Align locks for LWS syscalls to L1 cache size
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To: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org
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The LWS locks are also used for futex operations.  The shifts in
arch/parisc/include/asm/futex.h need a corresponding update.

Dave

On 2015-09-02 3:38 PM, Helge Deller wrote:
> Align the locks for the Light weight syscall (LWS) which is used for
> atomic userspace operations (e.g. gcc atomic builtins) on L1 cache
> boundaries. This should speed up LWS calls on PA20 systems.
>
> Reported-by: John David Anglin <dave.anglin@bell.net>
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> index 7ef22e3..80c2306 100644
> --- a/arch/parisc/kernel/syscall.S
> +++ b/arch/parisc/kernel/syscall.S
> @@ -561,9 +561,9 @@ lws_compare_and_swap:
>   	extru  %r26, 27, 4, %r20
>   
>   	/* Find lock to use, the hash is either one of 0 to
> -	   15, multiplied by 16 (keep it 16-byte aligned)
> +	   15, multiplied by L1_CACHE_BYTES (keep it L1 cache aligned)
>   	   and add to the lock table offset. */
> -	shlw	%r20, 4, %r20
> +	shlw	%r20, L1_CACHE_SHIFT, %r20
>   	add	%r20, %r28, %r20
>   
>   # if ENABLE_LWS_DEBUG
> @@ -751,9 +751,9 @@ cas2_lock_start:
>   	extru  %r26, 27, 4, %r20
>   
>   	/* Find lock to use, the hash is either one of 0 to
> -	   15, multiplied by 16 (keep it 16-byte aligned)
> +	   15, multiplied by L1_CACHE_BYTES (keep it L1 cache aligned)
>   	   and add to the lock table offset. */
> -	shlw	%r20, 4, %r20
> +	shlw	%r20, L1_CACHE_SHIFT, %r20
>   	add	%r20, %r28, %r20
>   
>   	rsm	PSW_SM_I, %r0			/* Disable interrupts */
> @@ -931,11 +931,9 @@ END(sys_call_table64)
>   ENTRY(lws_lock_start)
>   	/* lws locks */
>   	.rept 16
> -	/* Keep locks aligned at 16-bytes */
> +	/* Keep locks aligned to L1_CACHE_BYTES */
>   	.word 1
> -	.word 0
> -	.word 0
> -	.word 0
> +	.align	L1_CACHE_BYTES
>   	.endr
>   END(lws_lock_start)
>   	.previous
>
>


-- 
John David Anglin  dave.anglin@bell.net

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From - Thu Nov 08 21:37:51 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Align locks for LWS syscalls to L1 cache size
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parisc: Align locks for LWS syscalls to L1 cache size (v2)

Align the locks for the Light-weight-syscall (LWS) which are used
for atomic userspace operations (e.g. gcc atomic builtins) on L1 cache
boundaries. This should speed up LWS calls on PA20 systems.

Reported-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 7ef22e3..80c2306 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -561,9 +561,9 @@ lws_compare_and_swap:
 	extru  %r26, 27, 4, %r20
 
 	/* Find lock to use, the hash is either one of 0 to
-	   15, multiplied by 16 (keep it 16-byte aligned)
+	   15, multiplied by L1_CACHE_BYTES (keep it L1 cache aligned)
 	   and add to the lock table offset. */
-	shlw	%r20, 4, %r20
+	shlw	%r20, L1_CACHE_SHIFT, %r20
 	add	%r20, %r28, %r20
 
 # if ENABLE_LWS_DEBUG
@@ -751,9 +751,9 @@ cas2_lock_start:
 	extru  %r26, 27, 4, %r20
 
 	/* Find lock to use, the hash is either one of 0 to
-	   15, multiplied by 16 (keep it 16-byte aligned)
+	   15, multiplied by L1_CACHE_BYTES (keep it L1 cache aligned)
 	   and add to the lock table offset. */
-	shlw	%r20, 4, %r20
+	shlw	%r20, L1_CACHE_SHIFT, %r20
 	add	%r20, %r28, %r20
 
 	rsm	PSW_SM_I, %r0			/* Disable interrupts */
@@ -931,11 +931,9 @@ END(sys_call_table64)
 ENTRY(lws_lock_start)
 	/* lws locks */
 	.rept 16
-	/* Keep locks aligned at 16-bytes */
+	/* Keep locks aligned to L1_CACHE_BYTES */
 	.word 1
-	.word 0 
-	.word 0
-	.word 0
+	.align	L1_CACHE_BYTES
 	.endr
 END(lws_lock_start)
 	.previous


diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 49df148..47b075c 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -15,7 +15,7 @@ static inline void
 _futex_spin_lock_irqsave(u32 __user *uaddr, unsigned long int *flags)
 {
 	extern u32 lws_lock_start[];
-	long index = ((long)uaddr & 0xf0) >> 2;
+	long index = (((long)uaddr & 0xf0) >> 4) << (L1_CACHE_SHIFT-2);
 	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
 	local_irq_save(*flags);
 	arch_spin_lock(s);
@@ -25,7 +25,7 @@ static inline void
 _futex_spin_unlock_irqrestore(u32 __user *uaddr, unsigned long int *flags)
 {
 	extern u32 lws_lock_start[];
-	long index = ((long)uaddr & 0xf0) >> 2;
+	long index = (((long)uaddr & 0xf0) >> 4) << (L1_CACHE_SHIFT-2);
 	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
 	arch_spin_unlock(s);
 	local_irq_restore(*flags);
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From - Thu Nov 08 21:37:51 2018
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Subject: Re: [PATCH] parisc: Align locks for LWS syscalls to L1 cache size
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On Wed, 2015-09-02 at 21:38 +0200, Helge Deller wrote:
> Align the locks for the Light weight syscall (LWS) which is used for
> atomic userspace operations (e.g. gcc atomic builtins) on L1 cache
> boundaries. This should speed up LWS calls on PA20 systems.

Is there any evidence for this?  The architectural requirement for ldcw
on which all this is based is pegged at 16 bytes.  This implies that the
burst width on PA88/89 may indeed be 128 bytes, but the coherence width
for operations may still be 16 bytes.  If that speculation is true,
there's no speed at all gained by aligning ldcw to 128 bytes and all you
do is waste space.

James


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Subject: Re: [PATCH] parisc: Align locks for LWS syscalls to L1 cache size
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On 02.09.2015 23:32, James Bottomley wrote:
> On Wed, 2015-09-02 at 21:38 +0200, Helge Deller wrote:
>> Align the locks for the Light weight syscall (LWS) which is used for
>> atomic userspace operations (e.g. gcc atomic builtins) on L1 cache
>> boundaries. This should speed up LWS calls on PA20 systems.
> 
> Is there any evidence for this?  The architectural requirement for ldcw
> on which all this is based is pegged at 16 bytes.  This implies that the
> burst width on PA88/89 may indeed be 128 bytes, but the coherence width
> for operations may still be 16 bytes.  If that speculation is true,
> there's no speed at all gained by aligning ldcw to 128 bytes and all you
> do is waste space.

Sure, we'll have to measure timings here...

Helge

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Subject: Re: parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800 and PA8900
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Hi Helge,

today's linux-next tree (next-20150903) contains commit 20f924902ff6
("parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800 and PA8900 CPUs")
which you authored.

I noticed it because we[0] are running a daily analysis on all commits
in linux-next as part of our research and our tools reported it.

In the patch, you create the following #if defined() structure in
arch/parisc/include/asm/cache.h (lines 16 and following):

 #if defined(CONFIG_PA8X00)
  ...
 #elif defined(CONFIG_PA20)
  ...
 #else
  ...
 #endif

In Kconfig, CONFIG_PA20 is defined as the following
(arch/parisc/Kconfig, line 163):

config PA20
  def_bool y
  depends on PA8X00

This means that CONFIG_PA20 can and will only be enabled if
CONFIG_PA8X00 has already been enabled, which means that the contents of
the "#elif defined(CONFIG_PA20)" block can never be reached: its
condition is only evaluated if CONFIG_PA8X00 is disabled, but then
CONFIG_PA20 can never be enabled either.

Best regards,

Andreas

[0] https://cados.cs.fau.de
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Cc: "Andrew Morton" <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
	linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
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Hi Mathieu,

> [ Untested on this architecture. To try it out: fetch linux-next/akpm,
>   apply this patch, build/run a membarrier-enabled kernel, and do make
>   kselftest. ]
> 
> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
> CC: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
> CC: linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> CC: "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
> CC: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
> CC: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> ---
>  arch/parisc/include/uapi/asm/unistd.h | 3 ++-
>  arch/parisc/kernel/syscall_table.S    | 1 +
>  2 files changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
> index 2e639d7..dadcada 100644
> --- a/arch/parisc/include/uapi/asm/unistd.h
> +++ b/arch/parisc/include/uapi/asm/unistd.h
> @@ -358,8 +358,9 @@
>  #define __NR_memfd_create	(__NR_Linux + 340)
>  #define __NR_bpf		(__NR_Linux + 341)
>  #define __NR_execveat		(__NR_Linux + 342)
> +#define __NR_membarrier		(__NR_Linux + 343)
>  
> -#define __NR_Linux_syscalls	(__NR_execveat + 1)
> +#define __NR_Linux_syscalls	(__NR_membarrier + 1)
>  
>  
>  #define __IGNORE_select		/* newselect */
> diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
> index 8eefb12..2faa43b 100644
> --- a/arch/parisc/kernel/syscall_table.S
> +++ b/arch/parisc/kernel/syscall_table.S
> @@ -438,6 +438,7 @@
>  	ENTRY_SAME(memfd_create)	/* 340 */
>  	ENTRY_SAME(bpf)
>  	ENTRY_COMP(execveat)
> +	ENTRY_COMP(membarrier)

This needs to be ENTRY_SAME(membarrier), since you don't have/need a compat_membarrier() function.

After changing to ENTRY_SAME() I did run the kselftest on parisc: 
deller@ls3xx> ./membarrier_test 
membarrier MEMBARRIER_CMD_QUERY syscall available.
membarrier: MEMBARRIER_CMD_SHARED success.
membarrier: tests done!

Helge

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: [PATCH] parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800
 and PA8900 CPUs
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Cc: linux-parisc@vger.kernel.org,
	John David Anglin <dave.anglin@bell.net>
To: Helge Deller <deller@gmx.de>
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On Wed, 2015-09-02 at 18:20 +0200, Helge Deller wrote:
> PA8800 and PA8900 processors have a cache line length of 128 bytes.
> 
> Reported-by: John David Anglin <dave.anglin@bell.net>
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
> index 47f11c7..a775f60 100644
> --- a/arch/parisc/include/asm/cache.h
> +++ b/arch/parisc/include/asm/cache.h
> @@ -7,17 +7,19 @@
>  
> 
>  /*
> - * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
> - * 32-byte cachelines.  The default configuration is not for SMP anyway,
> - * so if you're building for SMP, you should select the appropriate
> - * processor type.  There is a potential livelock danger when running
> - * a machine with this value set too small, but it's more probable you'll
> - * just ruin performance.
> + * Most PA 2.0 processors have 64-byte cachelines, but PA8800 and PA8900
> + * processors have a cache line length of 128 bytes.
> + * PA 1.1 processors have 32-byte cachelines.
> + * There is a potential livelock danger when running a machine with this value
> + * set too small, but it's more probable you'll just ruin performance.
>   */
> -#ifdef CONFIG_PA20
> +#if defined(CONFIG_PA8X00)
> +#define L1_CACHE_BYTES 128
> +#define L1_CACHE_SHIFT 7
> +#elif defined(CONFIG_PA20)
>  #define L1_CACHE_BYTES 64
>  #define L1_CACHE_SHIFT 6
> -#else
> +#else /* PA7XXX */
>  #define L1_CACHE_BYTES 32
>  #define L1_CACHE_SHIFT 5
>  #endif
> 
> diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
> index 226f8ca9..b2bc4b7 100644
> --- a/arch/parisc/include/asm/atomic.h
> +++ b/arch/parisc/include/asm/atomic.h
> @@ -19,14 +19,14 @@
>  
>  #ifdef CONFIG_SMP
>  #include <asm/spinlock.h>
> -#include <asm/cache.h>		/* we use L1_CACHE_BYTES */
> +#include <asm/cache.h>		/* we use L1_CACHE_SHIFT */
>  
>  /* Use an array of spinlocks for our atomic_ts.
>   * Hash function to index into a different SPINLOCK.
>   * Since "a" is usually an address, use one spinlock per cacheline.
>   */
>  #  define ATOMIC_HASH_SIZE 4
> -#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
> +#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a)) >> L1_CACHE_SHIFT) & (ATOMIC_HASH_SIZE-1) ]))
>  
>  extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;

This doesn't look to be correct.  The L1_CACHE_BYTES is compile time not
runtime, so it's the Architectural not the Actual width.  For us, there
are only two architectural widths governed by our compile classes, which
are PA1 and PA2 at 32 and 64.  There's no config way to produce a PA2
kernel which is PA88/89 only, so we should follow the PA2 architectural
width because the kernel can be booted on any PA2 system, not just
PA88/89.  Even if we could produce a PA88/89 only kernel and would wish
to, there's still not much point because 128 is the cache burst width.
PA988/89 work perfectly OK with the architectural width, so the extra
space is likely added for no benefit.

James


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From - Thu Nov 08 21:37:51 2018
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Subject: Re: [PATCH] parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800
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	John David Anglin <dave.anglin@bell.net>
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On Thu, 2015-09-03 at 06:30 -0700, James Bottomley wrote:
> On Wed, 2015-09-02 at 18:20 +0200, Helge Deller wrote:
> > PA8800 and PA8900 processors have a cache line length of 128 bytes.
> > 
> > Reported-by: John David Anglin <dave.anglin@bell.net>
> > Signed-off-by: Helge Deller <deller@gmx.de>
> > 
> > diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
> > index 47f11c7..a775f60 100644
> > --- a/arch/parisc/include/asm/cache.h
> > +++ b/arch/parisc/include/asm/cache.h
> > @@ -7,17 +7,19 @@
> >  
> > 
> >  /*
> > - * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
> > - * 32-byte cachelines.  The default configuration is not for SMP anyway,
> > - * so if you're building for SMP, you should select the appropriate
> > - * processor type.  There is a potential livelock danger when running
> > - * a machine with this value set too small, but it's more probable you'll
> > - * just ruin performance.
> > + * Most PA 2.0 processors have 64-byte cachelines, but PA8800 and PA8900
> > + * processors have a cache line length of 128 bytes.
> > + * PA 1.1 processors have 32-byte cachelines.
> > + * There is a potential livelock danger when running a machine with this value
> > + * set too small, but it's more probable you'll just ruin performance.
> >   */
> > -#ifdef CONFIG_PA20
> > +#if defined(CONFIG_PA8X00)
> > +#define L1_CACHE_BYTES 128
> > +#define L1_CACHE_SHIFT 7
> > +#elif defined(CONFIG_PA20)
> >  #define L1_CACHE_BYTES 64
> >  #define L1_CACHE_SHIFT 6
> > -#else
> > +#else /* PA7XXX */
> >  #define L1_CACHE_BYTES 32
> >  #define L1_CACHE_SHIFT 5
> >  #endif
> > 
> > diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
> > index 226f8ca9..b2bc4b7 100644
> > --- a/arch/parisc/include/asm/atomic.h
> > +++ b/arch/parisc/include/asm/atomic.h
> > @@ -19,14 +19,14 @@
> >  
> >  #ifdef CONFIG_SMP
> >  #include <asm/spinlock.h>
> > -#include <asm/cache.h>		/* we use L1_CACHE_BYTES */
> > +#include <asm/cache.h>		/* we use L1_CACHE_SHIFT */
> >  
> >  /* Use an array of spinlocks for our atomic_ts.
> >   * Hash function to index into a different SPINLOCK.
> >   * Since "a" is usually an address, use one spinlock per cacheline.
> >   */
> >  #  define ATOMIC_HASH_SIZE 4
> > -#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
> > +#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a)) >> L1_CACHE_SHIFT) & (ATOMIC_HASH_SIZE-1) ]))
> >  
> >  extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
> 
> This doesn't look to be correct.  The L1_CACHE_BYTES is compile time not
> runtime, so it's the Architectural not the Actual width.  For us, there
> are only two architectural widths governed by our compile classes, which
> are PA1 and PA2 at 32 and 64.  There's no config way to produce a PA2
> kernel which is PA88/89 only, so we should follow the PA2 architectural
> width because the kernel can be booted on any PA2 system, not just
> PA88/89.  Even if we could produce a PA88/89 only kernel and would wish
> to, there's still not much point because 128 is the cache burst width.
> PA988/89 work perfectly OK with the architectural width, so the extra
> space is likely added for no benefit.

Having looked more closely at our atomics, we seem to have a bogus
assumption about cache lines.  Our cache is perfectly capable of
correctly writing to adjacent bytes in different lines even on different
processors and having the external visibility sequenced accordingly.
The reason we need the locks is for correctness not for cache coherence
problems.  This means that we shouldn't hash all locks in the same line
to the same lock because it introduces unnecessary contention in
adjacent atomics which could be sorted out much faster by the cache
logic.

The original way our hash worked would have been correct if the atomic_t
were cache line aligned ... meaning only one atomic per cache line, but
they're not, they have no alignment primitives.

On the same thought, to reduce atomic contention probabalistically, we
should have a much larger atomic array, say 64 or 128 ... it's a single
array of locks, so the amount of space consumed by expanding it isn't
huge.

This patch should get rid of the bogus cache assumption and at the same
time decrease our collision chances.  We should probably do some playing
around to see what the best size for ATOMIC_HASH_SIZE is.

James

---

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 226f8ca9..de3361b 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -19,14 +19,13 @@
 
 #ifdef CONFIG_SMP
 #include <asm/spinlock.h>
-#include <asm/cache.h>		/* we use L1_CACHE_BYTES */
 
 /* Use an array of spinlocks for our atomic_ts.
  * Hash function to index into a different SPINLOCK.
- * Since "a" is usually an address, use one spinlock per cacheline.
+ * Since "a" is usually an address, use one spinlock per atomic.
  */
-#  define ATOMIC_HASH_SIZE 4
-#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_HASH_SIZE 64
+#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/sizeof(atomic_t)) & (ATOMIC_HASH_SIZE-1) ]))
 
 extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 


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----- On Sep 3, 2015, at 8:26 AM, Helge Deller deller-Mmb7MZpHnFY@public.gmane.org wrote:

> Hi Mathieu,
> 
>> [ Untested on this architecture. To try it out: fetch linux-next/akpm,
>>   apply this patch, build/run a membarrier-enabled kernel, and do make
>>   kselftest. ]
>> 
>> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
>> CC: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
>> CC: linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> CC: "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
>> CC: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
>> CC: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> ---
>>  arch/parisc/include/uapi/asm/unistd.h | 3 ++-
>>  arch/parisc/kernel/syscall_table.S    | 1 +
>>  2 files changed, 3 insertions(+), 1 deletion(-)
>> 
>> diff --git a/arch/parisc/include/uapi/asm/unistd.h
>> b/arch/parisc/include/uapi/asm/unistd.h
>> index 2e639d7..dadcada 100644
>> --- a/arch/parisc/include/uapi/asm/unistd.h
>> +++ b/arch/parisc/include/uapi/asm/unistd.h
>> @@ -358,8 +358,9 @@
>>  #define __NR_memfd_create	(__NR_Linux + 340)
>>  #define __NR_bpf		(__NR_Linux + 341)
>>  #define __NR_execveat		(__NR_Linux + 342)
>> +#define __NR_membarrier		(__NR_Linux + 343)
>>  
>> -#define __NR_Linux_syscalls	(__NR_execveat + 1)
>> +#define __NR_Linux_syscalls	(__NR_membarrier + 1)
>>  
>>  
>>  #define __IGNORE_select		/* newselect */
>> diff --git a/arch/parisc/kernel/syscall_table.S
>> b/arch/parisc/kernel/syscall_table.S
>> index 8eefb12..2faa43b 100644
>> --- a/arch/parisc/kernel/syscall_table.S
>> +++ b/arch/parisc/kernel/syscall_table.S
>> @@ -438,6 +438,7 @@
>>  	ENTRY_SAME(memfd_create)	/* 340 */
>>  	ENTRY_SAME(bpf)
>>  	ENTRY_COMP(execveat)
>> +	ENTRY_COMP(membarrier)
> 
> This needs to be ENTRY_SAME(membarrier), since you don't have/need a
> compat_membarrier() function.

Allright, will fix.

> 
> After changing to ENTRY_SAME() I did run the kselftest on parisc:
> deller@ls3xx> ./membarrier_test
> membarrier MEMBARRIER_CMD_QUERY syscall available.
> membarrier: MEMBARRIER_CMD_SHARED success.
> membarrier: tests done!

And add your Tested-by tag, thanks!

Mathieu

> 
> Helge

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com

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Subject: Re: parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800 and PA8900
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Hi Andreas,

On 03.09.2015 11:23, Andreas Ziegler wrote:
> today's linux-next tree (next-20150903) contains commit 20f924902ff6
> ("parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800 and PA8900 CPUs")
> which you authored.
> 
> I noticed it because we[0] are running a daily analysis on all commits
> in linux-next as part of our research and our tools reported it.
> 
> In the patch, you create the following #if defined() structure in
> arch/parisc/include/asm/cache.h (lines 16 and following):
> 
>  #if defined(CONFIG_PA8X00)
>   ...
>  #elif defined(CONFIG_PA20)
>   ...
>  #else
>   ...
>  #endif
> 
> In Kconfig, CONFIG_PA20 is defined as the following
> (arch/parisc/Kconfig, line 163):
> 
> config PA20
>   def_bool y
>   depends on PA8X00
> 
> This means that CONFIG_PA20 can and will only be enabled if
> CONFIG_PA8X00 has already been enabled, which means that the contents of
> the "#elif defined(CONFIG_PA20)" block can never be reached: its
> condition is only evaluated if CONFIG_PA8X00 is disabled, but then
> CONFIG_PA20 can never be enabled either.

That's absolutely true.
I'll fix it with the next iteration of this patch.

Thanks,
Helge

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When detecting a serial port on newer PA-RISC machines (with iosapic) we have a
long way to go to find the right IRQ line, registering it, then registering the
serial port and the irq handler for the serial port. During this phase spurious
interrupts for the serial port may happen which then crashes the kernel because
the action handler might not have been set up yet.

So, basically it's a race condition between the serial port hardware and the
CPU which sets up the necessary fields in the irq sructs. The main reason for
this race is, that we unmask the serial port irqs too early without having set
up everything properly before (which isn't easily possible because we need the
IRQ number to register the serial ports).

This patch is a work-around for this problem. It adds checks to the CPU irq
handler to verify if the IRQ action field has been initialized already. If not,
we just skip this interrupt (which isn't critical for a serial port at bootup).
The real fix would probably involve rewriting all PA-RISC specific IRQ code
(for CPU, IOSAPIC, GSC and EISA) to use IRQ domains with proper parenting of
the irq chips and proper irq enabling along this line.

This bug has been in the PA-RISC port since the beginning, but the crashes
happened very rarely with currently used hardware.  But on the latest machine
which I bought (a C8000 workstation), which uses the fastest CPUs (4 x PA8900,
1GHz) and which has the largest possible L1 cache size (64MB each), the kernel
crashed at every boot because of this race. So, without this patch the machine
would currently be unuseable.

For the record, here is the flow logic:
1. serial_init_chip() in 8250_gsc.c calls iosapic_serial_irq().
2. iosapic_serial_irq() calls txn_alloc_irq() to find the irq.
3. iosapic_serial_irq() calls cpu_claim_irq() to register the CPU irq
4. cpu_claim_irq() unmasks the CPU irq (which it shouldn't!)
5. serial_init_chip() then registers the 8250 port.
Problems:
- In step 4 the CPU irq shouldn't have been registered yet, but after step 5
- If serial irq happens between 4 and 5 have finished, the kernel will crash

Cc: <stable@vger.kernel.org>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index f3191db..c0eab24 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -507,8 +507,8 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	struct pt_regs *old_regs;
 	unsigned long eirr_val;
 	int irq, cpu = smp_processor_id();
-#ifdef CONFIG_SMP
 	struct irq_desc *desc;
+#ifdef CONFIG_SMP
 	cpumask_t dest;
 #endif
 
@@ -521,8 +521,12 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 		goto set_out;
 	irq = eirr_to_irq(eirr_val);
 
-#ifdef CONFIG_SMP
+	/* Filter out spurious interrupts, mostly from serial port at bootup */
 	desc = irq_to_desc(irq);
+	if (unlikely(!desc->action))
+		goto set_out;
+
+#ifdef CONFIG_SMP
 	cpumask_copy(&dest, desc->irq_data.affinity);
 	if (irqd_is_per_cpu(&desc->irq_data) &&
 	    !cpumask_test_cpu(smp_processor_id(), &dest)) {
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Hi James,

On 03.09.2015 15:57, James Bottomley wrote:
> Having looked more closely at our atomics, we seem to have a bogus
> assumption about cache lines.  Our cache is perfectly capable of
> correctly writing to adjacent bytes in different lines even on different
> processors and having the external visibility sequenced accordingly.
> The reason we need the locks is for correctness not for cache coherence
> problems.  This means that we shouldn't hash all locks in the same line
> to the same lock because it introduces unnecessary contention in
> adjacent atomics which could be sorted out much faster by the cache
> logic.
> 
> The original way our hash worked would have been correct if the atomic_t
> were cache line aligned ... meaning only one atomic per cache line, but
> they're not, they have no alignment primitives.
> 
> On the same thought, to reduce atomic contention probabalistically, we
> should have a much larger atomic array, say 64 or 128 ... it's a single
> array of locks, so the amount of space consumed by expanding it isn't
> huge.
> 
> This patch should get rid of the bogus cache assumption and at the same
> time decrease our collision chances.  We should probably do some playing
> around to see what the best size for ATOMIC_HASH_SIZE is.

I haven't done any performance measurements yet, but your patch looks
absolutely correct.

Do you mind sending a full patch including your signed-off line, so that
I can include it?

Thanks,
Helge 

> diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
> index 226f8ca9..de3361b 100644
> --- a/arch/parisc/include/asm/atomic.h
> +++ b/arch/parisc/include/asm/atomic.h
> @@ -19,14 +19,13 @@
>  
>  #ifdef CONFIG_SMP
>  #include <asm/spinlock.h>
> -#include <asm/cache.h>		/* we use L1_CACHE_BYTES */
>  
>  /* Use an array of spinlocks for our atomic_ts.
>   * Hash function to index into a different SPINLOCK.
> - * Since "a" is usually an address, use one spinlock per cacheline.
> + * Since "a" is usually an address, use one spinlock per atomic.
>   */
> -#  define ATOMIC_HASH_SIZE 4
> -#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
> +#  define ATOMIC_HASH_SIZE 64
> +#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) (a))/sizeof(atomic_t)) & (ATOMIC_HASH_SIZE-1) ]))
>  
>  extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Align locks for LWS syscalls to L1 cache size
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On 02.09.2015 22:29, Helge Deller wrote:
> parisc: Align locks for LWS syscalls to L1 cache size (v2)
> 
> Align the locks for the Light-weight-syscall (LWS) which are used
> for atomic userspace operations (e.g. gcc atomic builtins) on L1 cache
> boundaries. This should speed up LWS calls on PA20 systems.
> 
> Reported-by: John David Anglin <dave.anglin@bell.net>
> Signed-off-by: Helge Deller <deller@gmx.de>


Any objections to this patch ?
One idea below...


> 
> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> index 7ef22e3..80c2306 100644
> --- a/arch/parisc/kernel/syscall.S
> +++ b/arch/parisc/kernel/syscall.S
> @@ -561,9 +561,9 @@ lws_compare_and_swap:
>  	extru  %r26, 27, 4, %r20
>  
>  	/* Find lock to use, the hash is either one of 0 to
> -	   15, multiplied by 16 (keep it 16-byte aligned)
> +	   15, multiplied by L1_CACHE_BYTES (keep it L1 cache aligned)
>  	   and add to the lock table offset. */
> -	shlw	%r20, 4, %r20
> +	shlw	%r20, L1_CACHE_SHIFT, %r20
>  	add	%r20, %r28, %r20
>  
>  # if ENABLE_LWS_DEBUG
> @@ -751,9 +751,9 @@ cas2_lock_start:
>  	extru  %r26, 27, 4, %r20
>  
>  	/* Find lock to use, the hash is either one of 0 to
> -	   15, multiplied by 16 (keep it 16-byte aligned)
> +	   15, multiplied by L1_CACHE_BYTES (keep it L1 cache aligned)
>  	   and add to the lock table offset. */
> -	shlw	%r20, 4, %r20
> +	shlw	%r20, L1_CACHE_SHIFT, %r20
>  	add	%r20, %r28, %r20
>  
>  	rsm	PSW_SM_I, %r0			/* Disable interrupts */
> @@ -931,11 +931,9 @@ END(sys_call_table64)
>  ENTRY(lws_lock_start)
>  	/* lws locks */
>  	.rept 16
> -	/* Keep locks aligned at 16-bytes */
> +	/* Keep locks aligned to L1_CACHE_BYTES */
>  	.word 1
> -	.word 0 
> -	.word 0
> -	.word 0
> +	.align	L1_CACHE_BYTES
>  	.endr

I think this alignment/increase of each array entry to size of L1_CACHE_BYTES 
should be limited to the SMP case only... For UP 16 bytes would be ok. 

Helge



>  END(lws_lock_start)
>  	.previous
> 
> 
> diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
> index 49df148..47b075c 100644
> --- a/arch/parisc/include/asm/futex.h
> +++ b/arch/parisc/include/asm/futex.h
> @@ -15,7 +15,7 @@ static inline void
>  _futex_spin_lock_irqsave(u32 __user *uaddr, unsigned long int *flags)
>  {
>  	extern u32 lws_lock_start[];
> -	long index = ((long)uaddr & 0xf0) >> 2;
> +	long index = (((long)uaddr & 0xf0) >> 4) << (L1_CACHE_SHIFT-2);
>  	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
>  	local_irq_save(*flags);
>  	arch_spin_lock(s);
> @@ -25,7 +25,7 @@ static inline void
>  _futex_spin_unlock_irqrestore(u32 __user *uaddr, unsigned long int *flags)
>  {
>  	extern u32 lws_lock_start[];
> -	long index = ((long)uaddr & 0xf0) >> 2;
> +	long index = (((long)uaddr & 0xf0) >> 4) << (L1_CACHE_SHIFT-2);
>  	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
>  	arch_spin_unlock(s);
>  	local_irq_restore(*flags);

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Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Tested-by: Helge Deller <deller@gmx.de>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: linux-api@vger.kernel.org
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: linux-parisc@vger.kernel.org
---
 arch/parisc/include/uapi/asm/unistd.h | 3 ++-
 arch/parisc/kernel/syscall_table.S    | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 2e639d7..dadcada 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -358,8 +358,9 @@
 #define __NR_memfd_create	(__NR_Linux + 340)
 #define __NR_bpf		(__NR_Linux + 341)
 #define __NR_execveat		(__NR_Linux + 342)
+#define __NR_membarrier		(__NR_Linux + 343)
 
-#define __NR_Linux_syscalls	(__NR_execveat + 1)
+#define __NR_Linux_syscalls	(__NR_membarrier + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 8eefb12..4e77991 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -438,6 +438,7 @@
 	ENTRY_SAME(memfd_create)	/* 340 */
 	ENTRY_SAME(bpf)
 	ENTRY_COMP(execveat)
+	ENTRY_SAME(membarrier)
 
 
 .ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
-- 
1.9.1

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Subject: Re: [PATCH] parisc: Align locks for LWS syscalls to L1 cache size
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* Helge Deller <deller@gmx.de>:
> On 02.09.2015 22:29, Helge Deller wrote:
> > parisc: Align locks for LWS syscalls to L1 cache size (v2)
> > 
> > Align the locks for the Light-weight-syscall (LWS) which are used
> > for atomic userspace operations (e.g. gcc atomic builtins) on L1 cache
> > boundaries. This should speed up LWS calls on PA20 systems.
> > 
> > Reported-by: John David Anglin <dave.anglin@bell.net>
> > Signed-off-by: Helge Deller <deller@gmx.de>

Updated patch (v2):
- using 64 LWS locks (instead of 16)
- LWS lock index is calculated by offset of u32 type, because futexes
  operate on u32 types (before based on 16 bytes)
- LWS locks aligned to 16byte on UP and to L1 cache size on SMP (to
  avoid different threads/processes locking each other on futexes at
  different addresses

Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
index 47f11c7..bb3d952 100644
--- a/arch/parisc/include/asm/cache.h
+++ b/arch/parisc/include/asm/cache.h
@@ -22,6 +22,21 @@
 #define L1_CACHE_SHIFT 5
 #endif
 
+
+/* Number of Light-weight-syscall (LWS) spinlocks */
+#define LWS_NUM_LOCK_BITS	6
+#define LWS_NUM_LOCKS		(1 << LWS_NUM_LOCK_BITS)
+
+/* Number of bits for alignment of LWS locks.
+ * Needs to be at least 4 (=16 bytes) for safe operation of LDCW.  For SMP
+ * align locks on L1 cache size. */
+#ifdef CONFIG_SMP
+# define LWS_LOCK_ALIGN_BITS	L1_CACHE_SHIFT
+#else
+# define LWS_LOCK_ALIGN_BITS	4
+#endif
+
+
 #ifndef __ASSEMBLY__
 
 #define SMP_CACHE_BYTES L1_CACHE_BYTES
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 49df148..b79e469 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -7,16 +7,23 @@
 #include <linux/uaccess.h>
 #include <asm/atomic.h>
 #include <asm/errno.h>
+#include <asm/cache.h>
 
-/* The following has to match the LWS code in syscall.S.  We have
-   sixteen four-word locks. */
+/* The following has to match the LWS code in syscall.S. */
+static inline arch_spinlock_t *
+_lws_spinlockptr(u32 __user *uaddr)
+{
+	extern u8 lws_lock_start[]; /* in arch/parisc/kernel/syscall.S */
+	/* futexes operates on int values */
+	long index = (((unsigned long)uaddr >> 2) & (LWS_NUM_LOCKS-1));
+	index <<= LWS_LOCK_ALIGN_BITS;	/* multiply by alignment of the locks */
+	return (arch_spinlock_t *) &lws_lock_start[index];
+}
 
 static inline void
 _futex_spin_lock_irqsave(u32 __user *uaddr, unsigned long int *flags)
 {
-	extern u32 lws_lock_start[];
-	long index = ((long)uaddr & 0xf0) >> 2;
-	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
+	arch_spinlock_t *s = _lws_spinlockptr(uaddr);
 	local_irq_save(*flags);
 	arch_spin_lock(s);
 }
@@ -24,9 +31,7 @@ _futex_spin_lock_irqsave(u32 __user *uaddr, unsigned long int *flags)
 static inline void
 _futex_spin_unlock_irqrestore(u32 __user *uaddr, unsigned long int *flags)
 {
-	extern u32 lws_lock_start[];
-	long index = ((long)uaddr & 0xf0) >> 2;
-	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
+	arch_spinlock_t *s = _lws_spinlockptr(uaddr);
 	arch_spin_unlock(s);
 	local_irq_restore(*flags);
 }
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 7ef22e3..fb0dd94 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -557,13 +557,11 @@ lws_compare_and_swap:
 	ldil	L%lws_lock_start, %r20
 	ldo	R%lws_lock_start(%r20), %r28
 
-	/* Extract four bits from r26 and hash lock (Bits 4-7) */
-	extru  %r26, 27, 4, %r20
+	/* Extract lws lock entry from r26 */
+	extru  %r26, (31-2), LWS_NUM_LOCK_BITS, %r20
 
-	/* Find lock to use, the hash is either one of 0 to
-	   15, multiplied by 16 (keep it 16-byte aligned)
-	   and add to the lock table offset. */
-	shlw	%r20, 4, %r20
+	/* Find hash lock to use */
+	shlw	%r20, LWS_LOCK_ALIGN_BITS, %r20
 	add	%r20, %r28, %r20
 
 # if ENABLE_LWS_DEBUG
@@ -747,13 +745,11 @@ cas2_lock_start:
 	ldil	L%lws_lock_start, %r20
 	ldo	R%lws_lock_start(%r20), %r28
 
-	/* Extract four bits from r26 and hash lock (Bits 4-7) */
-	extru  %r26, 27, 4, %r20
+	/* Extract lws lock entry from r26 */
+	extru  %r26, (31-2), LWS_NUM_LOCK_BITS, %r20
 
-	/* Find lock to use, the hash is either one of 0 to
-	   15, multiplied by 16 (keep it 16-byte aligned)
-	   and add to the lock table offset. */
-	shlw	%r20, 4, %r20
+	/* Find hash lock to use */
+	shlw	%r20, LWS_LOCK_ALIGN_BITS, %r20
 	add	%r20, %r28, %r20
 
 	rsm	PSW_SM_I, %r0			/* Disable interrupts */
@@ -930,12 +926,10 @@ END(sys_call_table64)
 	.align	L1_CACHE_BYTES
 ENTRY(lws_lock_start)
 	/* lws locks */
-	.rept 16
-	/* Keep locks aligned at 16-bytes */
+	.rept LWS_NUM_LOCKS
+	/* Keep locks at least 16-byte aligned */
 	.word 1
-	.word 0 
-	.word 0
-	.word 0
+	.align (1 << LWS_LOCK_ALIGN_BITS)
 	.endr
 END(lws_lock_start)
 	.previous
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From - Thu Nov 08 21:37:52 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.next,gmane.linux.kernel
Subject: linux-next: manual merge of the parisc-hd tree with Linus' tree
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	Jiang Liu <jiang.liu@linux.intel.com>,
	Thomas Gleixner <tglx@linutronix.de>
To: Helge Deller <deller@gmx.de>,
	Parisc List <linux-parisc@vger.kernel.org>
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Hi all,

Today's linux-next merge of the parisc-hd tree got a conflict in:

  arch/parisc/kernel/irq.c

between commit:

  d2109a12198e ("parisc/irq: Use access helper irq_data_get_affinity_mask()")

from Linus' tree and commit:

  b15e2f939727 ("parisc: Filter out spurious interrupts in PA-RISC irq handler")

from the parisc-hd tree.

I fixed it up (see below) and can carry the fix as necessary (no action
is required).

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

diff --cc arch/parisc/kernel/irq.c
index 413ec3c3f9cc,c0eab24f6a9e..000000000000
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@@ -507,8 -507,8 +507,8 @@@ void do_cpu_irq_mask(struct pt_regs *re
  	struct pt_regs *old_regs;
  	unsigned long eirr_val;
  	int irq, cpu = smp_processor_id();
- #ifdef CONFIG_SMP
 -	struct irq_desc *desc;
 +	struct irq_data *irq_data;
+ #ifdef CONFIG_SMP
  	cpumask_t dest;
  #endif
  
@@@ -521,10 -521,14 +521,14 @@@
  		goto set_out;
  	irq = eirr_to_irq(eirr_val);
  
- #ifdef CONFIG_SMP
 +	irq_data = irq_get_irq_data(irq);
+ 	/* Filter out spurious interrupts, mostly from serial port at bootup */
 -	desc = irq_to_desc(irq);
 -	if (unlikely(!desc->action))
++	if (unlikely(!irq_data))
+ 		goto set_out;
+ 
+ #ifdef CONFIG_SMP
 -	cpumask_copy(&dest, desc->irq_data.affinity);
 -	if (irqd_is_per_cpu(&desc->irq_data) &&
 +	cpumask_copy(&dest, irq_data_get_affinity_mask(irq_data));
 +	if (irqd_is_per_cpu(irq_data) &&
  	    !cpumask_test_cpu(smp_processor_id(), &dest)) {
  		int cpu = cpumask_first(&dest);
  
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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] parisc: Use double word condition in 64bit CAS operation
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The attached change fixes the condition used in the "sub" instruction.  =
A double word comparison
is needed.  This fixes the 64-bit LWS CAS operation on 64-bit kernels.

I can now enable 64-bit atomic support in GCC.

Cc: <stable@vger.kernel.org>
Signed-off-by: John David Anglin <dave.anglin>


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diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 7ef22e3..0b8d26d 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -821,7 +821,7 @@ cas2_action:
 	/* 64bit CAS */
 #ifdef CONFIG_64BIT
 19:	ldd,ma	0(%sr3,%r26), %r29
-	sub,=	%r29, %r25, %r0
+	sub,*=	%r29, %r25, %r0
 	b,n	cas2_end
 20:	std,ma	%r24, 0(%sr3,%r26)
 	copy	%r0, %r28

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From - Thu Nov 08 21:37:52 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Wire up userfaultfd syscall
Date: Tue, 8 Sep 2015 15:45:32 +0200
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To: linux-parisc@vger.kernel.org,
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 2e639d7..e24dcc6 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -358,8 +358,9 @@
 #define __NR_memfd_create	(__NR_Linux + 340)
 #define __NR_bpf		(__NR_Linux + 341)
 #define __NR_execveat		(__NR_Linux + 342)
+#define __NR_userfaultfd	(__NR_Linux + 343)
 
-#define __NR_Linux_syscalls	(__NR_execveat + 1)
+#define __NR_Linux_syscalls	(__NR_userfaultfd + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 8eefb12..2b7db74 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -438,6 +438,7 @@
 	ENTRY_SAME(memfd_create)	/* 340 */
 	ENTRY_SAME(bpf)
 	ENTRY_COMP(execveat)
+	ENTRY_SAME(userfaultfd)
 
 
 .ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
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From - Thu Nov 08 21:37:52 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.kernel.mm
Subject: [PATCH v9 2/6] mm: mlock: Add new mlock system call
Date: Tue,  8 Sep 2015 09:58:58 -0400
Lines: 127
Approved: news@gmane.org
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Cc: Eric B Munson <emunson@akamai.com>, Michal Hocko <mhocko@suse.cz>,
	Vlastimil Babka <vbabka@suse.cz>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Guenter Roeck <linux@roeck-us.net>,
	linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
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	linux-mm@kvack.org
To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/7488>

With the refactored mlock code, introduce a new system call for mlock.
The new call will allow the user to specify what lock states are being
added.  mlock2 is trivial at the moment, but a follow on patch will add
a new mlock state making it useful.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
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Cc: linux-cris-kernel@axis.com
Cc: linux-ia64@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-am33-list@redhat.com
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mm@kvack.org
---
Changes from V8:
* Update x86[_64] syscall numbers to follow the new userfaultfd syscalls

 arch/x86/entry/syscalls/syscall_32.tbl | 1 +
 arch/x86/entry/syscalls/syscall_64.tbl | 1 +
 include/linux/syscalls.h               | 2 ++
 include/uapi/asm-generic/unistd.h      | 4 +++-
 kernel/sys_ni.c                        | 1 +
 mm/mlock.c                             | 8 ++++++++
 6 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index 477bfa6..41e72a5 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -381,3 +381,4 @@
 372	i386	recvmsg			sys_recvmsg			compat_sys_recvmsg
 373	i386	shutdown		sys_shutdown
 374	i386	userfaultfd		sys_userfaultfd
+375	i386	mlock2			sys_mlock2
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 81c4906..2366900 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -330,6 +330,7 @@
 321	common	bpf			sys_bpf
 322	64	execveat		stub_execveat
 323	common	userfaultfd		sys_userfaultfd
+324	common	mlock2			sys_mlock2
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 0800131..890632c 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -885,4 +885,6 @@ asmlinkage long sys_execveat(int dfd, const char __user *filename,
 			const char __user *const __user *argv,
 			const char __user *const __user *envp, int flags);
 
+asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
+
 #endif
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index e016bd9..14a6013 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -709,9 +709,11 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
 __SYSCALL(__NR_bpf, sys_bpf)
 #define __NR_execveat 281
 __SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
+#define __NR_mlock2 282
+__SYSCALL(__NR_mlock2, sys_mlock2)
 
 #undef __NR_syscalls
-#define __NR_syscalls 282
+#define __NR_syscalls 283
 
 /*
  * All syscalls below here should go away really,
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 03c3875..8de5b26 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -194,6 +194,7 @@ cond_syscall(sys_mlock);
 cond_syscall(sys_munlock);
 cond_syscall(sys_mlockall);
 cond_syscall(sys_munlockall);
+cond_syscall(sys_mlock2);
 cond_syscall(sys_mincore);
 cond_syscall(sys_madvise);
 cond_syscall(sys_mremap);
diff --git a/mm/mlock.c b/mm/mlock.c
index c32ad8f..a23a533 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -644,6 +644,14 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 	return do_mlock(start, len, VM_LOCKED);
 }
 
+SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
+{
+	if (flags)
+		return -EINVAL;
+
+	return do_mlock(start, len, VM_LOCKED);
+}
+
 SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 {
 	int ret;
-- 
1.9.1


From - Thu Nov 08 21:37:52 2018
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X-Mozilla-Keys:                                                                                 
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH v9 0/6] Allow user to request memory to be locked on page fault
Date: Tue,  8 Sep 2015 09:58:56 -0400
Lines: 235
Approved: news@gmane.org
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Cc: Eric B Munson <emunson@akamai.com>,
	Shuah Khan <shuahkh@osg.samsung.com>,
	Michal Hocko <mhocko@suse.cz>,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	Vlastimil Babka <vbabka@suse.cz>,
	Jonathan Corbet <corbet@lwn.net>,
	Ralf Baechle <ralf@linux-mips.org>,
	Andrea Arcangeli <aarcange@redhat.com>,
	linux-alpha@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-mips@linux-mips.org,
	linux-parisc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org,
	sparclinux@vger.kernel.org,
	linux-xtensa@linux-xtensa.org,
	linux-mm@kvack.org,
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	linux-api@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/138212>

Since this set has not been merge yet, here is a respin that drops the
export of VM_LOCKONFAULT to the rmap code.

---

mlock() allows a user to control page out of program memory, but this
comes at the cost of faulting in the entire mapping when it is
allocated.  For large mappings where the entire area is not necessary
this is not ideal.  Instead of forcing all locked pages to be present
when they are allocated, this set creates a middle ground.  Pages are
marked to be placed on the unevictable LRU (locked) when they are first
used, but they are not faulted in by the mlock call.

This series introduces a new mlock() system call that takes a flags
argument along with the start address and size.  This flags argument
gives the caller the ability to request memory be locked in the
traditional way, or to be locked after the page is faulted in.  A new
MCL flag is added to mirror the lock on fault behavior from mlock() in
mlockall().

There are two main use cases that this set covers.  The first is the
security focussed mlock case.  A buffer is needed that cannot be written
to swap.  The maximum size is known, but on average the memory used is
significantly less than this maximum.  With lock on fault, the buffer
is guaranteed to never be paged out without consuming the maximum size
every time such a buffer is created.

The second use case is focussed on performance.  Portions of a large
file are needed and we want to keep the used portions in memory once
accessed.  This is the case for large graphical models where the path
through the graph is not known until run time.  The entire graph is
unlikely to be used in a given invocation, but once a node has been
used it needs to stay resident for further processing.  Given these
constraints we have a number of options.  We can potentially waste a
large amount of memory by mlocking the entire region (this can also
cause a significant stall at startup as the entire file is read in).
We can mlock every page as we access them without tracking if the page
is already resident but this introduces large overhead for each access.
The third option is mapping the entire region with PROT_NONE and using
a signal handler for SIGSEGV to mprotect(PROT_READ) and mlock() the
needed page.  Doing this page at a time adds a significant performance
penalty.  Batching can be used to mitigate this overhead, but in order
to safely avoid trying to mprotect pages outside of the mapping, the
boundaries of each mapping to be used in this way must be tracked and
available to the signal handler.  This is precisely what the mm system
in the kernel should already be doing.

For mlock(MLOCK_ONFAULT) the user is charged against RLIMIT_MEMLOCK as
if mlock(MLOCK_LOCKED) or mmap(MAP_LOCKED) was used, so when the VMA is
created not when the pages are faulted in.  For mlockall(MCL_ONFAULT)
the user is charged as if MCL_FUTURE was used.  This decision was made
to keep the accounting checks out of the page fault path.

To illustrate the benefit of this set I wrote a test program that mmaps
a 5 GB file filled with random data and then makes 15,000,000 accesses
to random addresses in that mapping.  The test program was run 20 times
for each setup.  Results are reported for two program portions, setup
and execution.  The setup phase is calling mmap and optionally mlock on
the entire region.  For most experiments this is trivial, but it
highlights the cost of faulting in the entire region.  Results are
averages across the 20 runs in milliseconds.

mmap with mlock(MLOCK_LOCKED) on entire range:
Setup avg:      8228.666
Processing avg: 8274.257

mmap with mlock(MLOCK_LOCKED) before each access:
Setup avg:      0.113
Processing avg: 90993.552

mmap with PROT_NONE and signal handler and batch size of 1 page:
With the default value in max_map_count, this gets ENOMEM as I attempt
to change the permissions, after upping the sysctl significantly I get:
Setup avg:      0.058
Processing avg: 69488.073
mmap with PROT_NONE and signal handler and batch size of 8 pages:
Setup avg:      0.068
Processing avg: 38204.116

mmap with PROT_NONE and signal handler and batch size of 16 pages:
Setup avg:      0.044
Processing avg: 29671.180

mmap with mlock(MLOCK_ONFAULT) on entire range:
Setup avg:      0.189
Processing avg: 17904.899

The signal handler in the batch cases faulted in memory in two steps to
avoid having to know the start and end of the faulting mapping.  The
first step covers the page that caused the fault as we know that it will
be possible to lock.  The second step speculatively tries to mlock and
mprotect the batch size - 1 pages that follow.  There may be a clever
way to avoid this without having the program track each mapping to be
covered by this handeler in a globally accessible structure, but I could
not find it.  It should be noted that with a large enough batch size
this two step fault handler can still cause the program to crash if it
reaches far beyond the end of the mapping.

These results show that if the developer knows that a majority of the
mapping will be used, it is better to try and fault it in at once,
otherwise mlock(MLOCK_ONFAULT) is significantly faster.

The performance cost of these patches are minimal on the two benchmarks
I have tested (stream and kernbench).  The following are the average
values across 20 runs of stream and 10 runs of kernbench after a warmup
run whose results were discarded.

Avg throughput in MB/s from stream using 1000000 element arrays
Test     4.2-rc1      4.2-rc1+lock-on-fault
Copy:    10,566.5     10,421
Scale:   10,685       10,503.5
Add:     12,044.1     11,814.2
Triad:   12,064.8     11,846.3

Kernbench optimal load
                 4.2-rc1  4.2-rc1+lock-on-fault
Elapsed Time     78.453   78.991
User Time        64.2395  65.2355
System Time      9.7335   9.7085
Context Switches 22211.5  22412.1
Sleeps           14965.3  14956.1

---
Changes from V8:
* Do not expose VM_LOCKONFAULT flag to rmap code
* Rebase on top of userfaultfd code

Changes from V7:
* Do not expose the VM_LOCKONFAULT flag to userspace via proc
* Fix mlock2 self tests

Changes from V6:
* Bump the x86 system call number to avoid collision with userfaultfd
* Fix FOLL_POPULATE and FOLL_MLOCK usage when mmap is called with
 MAP_POPULATE
* Add documentation for the proc smaps change
* checkpatch fixes

Changes from V5:
Drop MLOCK_LOCKED flag
* MLOCK_ONFAULT and MCL_ONFAULT are treated as a modifier to other locking
 operations, mirroring the relationship between VM_LOCKED and
 VM_LOCKONFAULT
* Drop mmap flag and related tests
* Fix clearing of MCL_CURRENT when mlockall is called with MCL_FUTURE,
 mlockall behavoir now matches the old behavior WRT to ordering

Changes from V4:
Drop all architectures for new sys call entries except x86[_64] and MIPS
Drop munlock2 and munlockall2
Make VM_LOCKONFAULT a modifier to VM_LOCKED only to simplify book keeping
Adjust tests to match

Changes from V3:
Ensure that pages present when mlock2(MLOCK_ONFAULT) is called are locked
Ensure that VM_LOCKONFAULT is handled in cases that used to only check VM_LOCKED
Add tests for new system calls
Add missing syscall entries, fix NR_syscalls on multiple arch's
Add missing MAP_LOCKONFAULT for tile

Changes from V2:
Added new system calls for mlock, munlock, and munlockall with added
flags arguments for controlling how memory is locked or unlocked.


Eric B Munson (6):
  mm: mlock: Refactor mlock, munlock, and munlockall code
  mm: mlock: Add new mlock system call
  mm: Introduce VM_LOCKONFAULT
  mm: mlock: Add mlock flags to enable VM_LOCKONFAULT usage
  selftests: vm: Add tests for lock on fault
  mips: Add entry for new mlock2 syscall

 arch/alpha/include/uapi/asm/mman.h          |   3 +
 arch/mips/include/uapi/asm/mman.h           |   6 +
 arch/mips/include/uapi/asm/unistd.h         |  15 +-
 arch/mips/kernel/scall32-o32.S              |   1 +
 arch/mips/kernel/scall64-64.S               |   1 +
 arch/mips/kernel/scall64-n32.S              |   1 +
 arch/mips/kernel/scall64-o32.S              |   1 +
 arch/parisc/include/uapi/asm/mman.h         |   3 +
 arch/powerpc/include/uapi/asm/mman.h        |   1 +
 arch/sparc/include/uapi/asm/mman.h          |   1 +
 arch/tile/include/uapi/asm/mman.h           |   1 +
 arch/x86/entry/syscalls/syscall_32.tbl      |   1 +
 arch/x86/entry/syscalls/syscall_64.tbl      |   1 +
 arch/xtensa/include/uapi/asm/mman.h         |   6 +
 include/linux/mm.h                          |   5 +
 include/linux/syscalls.h                    |   2 +
 include/uapi/asm-generic/mman-common.h      |   5 +
 include/uapi/asm-generic/mman.h             |   1 +
 include/uapi/asm-generic/unistd.h           |   4 +-
 kernel/fork.c                               |   3 +-
 kernel/sys_ni.c                             |   1 +
 mm/debug.c                                  |   1 +
 mm/gup.c                                    |  10 +-
 mm/huge_memory.c                            |   2 +-
 mm/hugetlb.c                                |   4 +-
 mm/mlock.c                                  |  86 +++-
 mm/mmap.c                                   |   2 +-
 tools/testing/selftests/vm/Makefile         |   2 +
 tools/testing/selftests/vm/mlock2-tests.c   | 737 ++++++++++++++++++++++++++++
 tools/testing/selftests/vm/on-fault-limit.c |  47 ++
 tools/testing/selftests/vm/run_vmtests      |  22 +
 31 files changed, 938 insertions(+), 38 deletions(-)
 create mode 100644 tools/testing/selftests/vm/mlock2-tests.c
 create mode 100644 tools/testing/selftests/vm/on-fault-limit.c

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org

-- 
1.9.1

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From - Thu Nov 08 21:37:53 2018
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From: Eric B Munson <emunson@akamai.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: [PATCH v9 4/6] mm: mlock: Add mlock flags to enable VM_LOCKONFAULT usage
Date: Tue,  8 Sep 2015 09:59:00 -0400
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Cc: Eric B Munson <emunson@akamai.com>,
	Michal Hocko <mhocko@suse.cz>,
	Vlastimil Babka <vbabka@suse.cz>,
	Jonathan Corbet <corbet@lwn.net>,
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To: Andrew Morton <akpm@linux-foundation.org>
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Xref: news.gmane.org gmane.linux.kernel.mm:138213 gmane.linux.ports.alpha:3384 gmane.linux.kernel:2034258 gmane.linux.ports.mips.general:50288 gmane.linux.ports.parisc:26022 gmane.linux.ports.ppc64.devel:117704 gmane.linux.ports.sparc:21563 gmane.linux.kernel.cross-arch:29042 gmane.linux.kernel.api:13932
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/138213>

The previous patch introduced a flag that specified pages in a VMA
should be placed on the unevictable LRU, but they should not be made
present when the area is created.  This patch adds the ability to set
this state via the new mlock system calls.

We add MLOCK_ONFAULT for mlock2 and MCL_ONFAULT for mlockall.
MLOCK_ONFAULT will set the VM_LOCKONFAULT modifier for VM_LOCKED.
MCL_ONFAULT should be used as a modifier to the two other mlockall
flags.  When used with MCL_CURRENT, all current mappings will be marked
with VM_LOCKED | VM_LOCKONFAULT.  When used with MCL_FUTURE, the
mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.  When used
with both MCL_CURRENT and MCL_FUTURE, all current mappings and
mm->def_flags will be marked with VM_LOCKED | VM_LOCKONFAULT.

Prior to this patch, mlockall() will unconditionally clear the
mm->def_flags any time it is called without MCL_FUTURE.  This behavior
is maintained after adding MCL_ONFAULT.  If a call to
mlockall(MCL_FUTURE) is followed by mlockall(MCL_CURRENT), the
mm->def_flags will be cleared and new VMAs will be unlocked.  This
remains true with or without MCL_ONFAULT in either mlockall()
invocation.

munlock() will unconditionally clear both vma flags.  munlockall()
unconditionally clears for VMA flags on all VMAs and in the
mm->def_flags field.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Cc: linux-api@vger.kernel.org
Cc: linux-mm@kvack.org
---
 arch/alpha/include/uapi/asm/mman.h     |  3 ++
 arch/mips/include/uapi/asm/mman.h      |  6 ++++
 arch/parisc/include/uapi/asm/mman.h    |  3 ++
 arch/powerpc/include/uapi/asm/mman.h   |  1 +
 arch/sparc/include/uapi/asm/mman.h     |  1 +
 arch/tile/include/uapi/asm/mman.h      |  1 +
 arch/xtensa/include/uapi/asm/mman.h    |  6 ++++
 include/uapi/asm-generic/mman-common.h |  5 ++++
 include/uapi/asm-generic/mman.h        |  1 +
 mm/mlock.c                             | 52 +++++++++++++++++++++++++---------
 10 files changed, 66 insertions(+), 13 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..f2f9496 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -37,6 +37,9 @@
 
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
+#define MCL_ONFAULT	32768		/* lock all pages that are faulted in */
+
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..97c03f4 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -61,6 +61,12 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
+/*
+ * Flags for mlock
+ */
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..ecc3ae1 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -31,6 +31,9 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 6ea26df..03c06ba 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -22,6 +22,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 0b14df3..9765896 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -17,6 +17,7 @@
 
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
+#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */
 
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index 81b8fc3..63ee13f 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -36,6 +36,7 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..360944e 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -74,6 +74,12 @@
  */
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
+
+/*
+ * Flags for mlock
+ */
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h
index ddc3b36..a74dd84 100644
--- a/include/uapi/asm-generic/mman-common.h
+++ b/include/uapi/asm-generic/mman-common.h
@@ -25,6 +25,11 @@
 # define MAP_UNINITIALIZED 0x0		/* Don't support this flag */
 #endif
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
+
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_INVALIDATE	2		/* invalidate the caches */
 #define MS_SYNC		4		/* synchronous memory sync */
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index e9fe6fd..7162cd4 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -17,5 +17,6 @@
 
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
+#define MCL_ONFAULT	4		/* lock all pages that are faulted in */
 
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/mm/mlock.c b/mm/mlock.c
index ffcec2e..ddbfda7 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -506,7 +506,8 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
 
 	if (newflags == vma->vm_flags || (vma->vm_flags & VM_SPECIAL) ||
 	    is_vm_hugetlb_page(vma) || vma == get_gate_vma(current->mm))
-		goto out;	/* don't set VM_LOCKED,  don't count */
+		/* don't set VM_LOCKED or VM_LOCKONFAULT and don't count */
+		goto out;
 
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,
@@ -577,7 +578,7 @@ static int apply_vma_lock_flags(unsigned long start, size_t len,
 		prev = vma;
 
 	for (nstart = start ; ; ) {
-		vm_flags_t newflags = vma->vm_flags & ~VM_LOCKED;
+		vm_flags_t newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK;
 
 		newflags |= flags;
 
@@ -646,10 +647,15 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 
 SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
 {
-	if (flags)
+	vm_flags_t vm_flags = VM_LOCKED;
+
+	if (flags & ~MLOCK_ONFAULT)
 		return -EINVAL;
 
-	return do_mlock(start, len, VM_LOCKED);
+	if (flags & MLOCK_ONFAULT)
+		vm_flags |= VM_LOCKONFAULT;
+
+	return do_mlock(start, len, vm_flags);
 }
 
 SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
@@ -666,24 +672,43 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 	return ret;
 }
 
+/*
+ * Take the MCL_* flags passed into mlockall (or 0 if called from munlockall)
+ * and translate into the appropriate modifications to mm->def_flags and/or the
+ * flags for all current VMAs.
+ *
+ * There are a couple of subtleties with this.  If mlockall() is called multiple
+ * times with different flags, the values do not necessarily stack.  If mlockall
+ * is called once including the MCL_FUTURE flag and then a second time without
+ * it, VM_LOCKED and VM_LOCKONFAULT will be cleared from mm->def_flags.
+ */
 static int apply_mlockall_flags(int flags)
 {
 	struct vm_area_struct * vma, * prev = NULL;
+	vm_flags_t to_add = 0;
 
-	if (flags & MCL_FUTURE)
+	current->mm->def_flags &= VM_LOCKED_CLEAR_MASK;
+	if (flags & MCL_FUTURE) {
 		current->mm->def_flags |= VM_LOCKED;
-	else
-		current->mm->def_flags &= ~VM_LOCKED;
 
-	if (flags == MCL_FUTURE)
-		goto out;
+		if (flags & MCL_ONFAULT)
+			current->mm->def_flags |= VM_LOCKONFAULT;
+
+		if (!(flags & MCL_CURRENT))
+			goto out;
+	}
+
+	if (flags & MCL_CURRENT) {
+		to_add |= VM_LOCKED;
+		if (flags & MCL_ONFAULT)
+			to_add |= VM_LOCKONFAULT;
+	}
 
 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
 		vm_flags_t newflags;
 
-		newflags = vma->vm_flags & ~VM_LOCKED;
-		if (flags & MCL_CURRENT)
-			newflags |= VM_LOCKED;
+		newflags = vma->vm_flags & VM_LOCKED_CLEAR_MASK;
+		newflags |= to_add;
 
 		/* Ignore errors */
 		mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);
@@ -698,7 +723,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	unsigned long lock_limit;
 	int ret = -EINVAL;
 
-	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE)))
+	if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT)) ||
+	    flags == MCL_ONFAULT)
 		goto out;
 
 	ret = -EPERM;
-- 
1.9.1

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Drop CONFIG_SMP around update_cr16_clocksource()
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No need to use CONFIG_SMP around update_cr16_clocksource(). It checks for
num_online_cpus() beeing greater than 1, which is always 1 in UP builds.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 70e105d..400acac 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -202,7 +202,6 @@ static struct clocksource clocksource_cr16 = {
 	.flags			= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
-#ifdef CONFIG_SMP
 int update_cr16_clocksource(void)
 {
 	/* since the cr16 cycle counters are not synchronized across CPUs,
@@ -214,12 +213,6 @@ int update_cr16_clocksource(void)
 
 	return 0;
 }
-#else
-int update_cr16_clocksource(void)
-{
-	return 0; /* no change */
-}
-#endif /*CONFIG_SMP*/
 
 void __init start_cpu_itimer(void)
 {
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 70e105d..400acac 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -231,20 +224,14 @@ void __init start_cpu_itimer(void)
 	per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
-static struct platform_device rtc_generic_dev = {
-	.name = "rtc-generic",
-	.id = -1,
-};

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From: Helge Deller <deller@gmx.de>
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Hi Linus,

please pull the latest changes for the parisc architecture for kernel v4.3 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.3-1

The most important changes in this patchset are:
- re-enable 64bit PCI bus addresses which were temporarily disabled for PA-RISC
  in kernel 4.2
- fix the 64bit CAS operation in the LWS path which now enables us to enable the
  64bit gcc atomic builtins even on 32bit userspace with 64bit kernel
- fix a long-standing bug which sometimes crashed kernel at bootup while serial
  interrupt wasn't registered yet

Thanks,
Helge

----------------------------------------------------------------
Guenter Roeck (1):
      parisc: Define ioremap_uc and ioremap_wc

Helge Deller (5):
      PCI,parisc: Enable 64-bit bus addresses on PA-RISC
      parisc: Additionally check for in_atomic() in page fault handler
      parisc: Filter out spurious interrupts in PA-RISC irq handler
      parisc: Drop CONFIG_SMP around update_cr16_clocksource()
      parisc: Use platform_device_register_simple("rtc-generic")

John David Anglin (1):
      parisc: Use double word condition in 64bit CAS operation

 arch/parisc/include/asm/io.h |  2 ++
 arch/parisc/kernel/irq.c     |  9 +++++++--
 arch/parisc/kernel/syscall.S |  2 +-
 arch/parisc/kernel/time.c    | 21 ++++-----------------
 arch/parisc/mm/fault.c       |  2 +-
 drivers/parisc/lba_pci.c     |  7 +++++--
 drivers/pci/Kconfig          |  2 +-
 7 files changed, 21 insertions(+), 24 deletions(-)
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Unaligned access in scsi blk_rq_map_sg
Date: Sat, 12 Sep 2015 18:13:25 -0400
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With Linus' tree at head, I got the following boot error today:

scsi 4:0:0:0: Direct-Access     HP 73.4G ST373207LW       HPC1 PQ: 0 ANSI: 3    
scsi target4:0:0: Beginning Domain Validation                                   
scsi target4:0:0: Ending Domain Validation                                      
scsi target4:0:0: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW PCOMP (6.2)
scsi 4:0:2:0: Direct-Access     HP 73.4G ST373207LW       HPC1 PQ: 0 ANSI: 3    
scsi target4:0:2: Beginning Domain Validation                                   
scsi target4:0:2: Ending Domain Validation                                      
scsi target4:0:2: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW PCOMP (6.2)
ata3: SATA link down (SStatus 0 SControl 0)                                     
random: nonblocking pool is initialized                                         
ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 0)                            
ata4.00: ATA-9: ST3000DM001-1ER166, CC25, max UDMA/133                          
ata4.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32)                   
ata4.00: configured for UDMA/100                                                
scsi 3:0:0:0: Direct-Access     ATA      ST3000DM001-1ER1 CC25 PQ: 0 ANSI: 5    
sd 3:0:0:0: [sdc] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB)        
sd 4:0:0:0: [sda] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)         
sd 4:0:2:0: [sdb] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)         
sd 4:0:0:0: [sda] Write Protect is off                                          
sd 4:0:2:0: [sdb] Write Protect is off                                          
sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FA
sd 4:0:2:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FA
mptbase: ioc1: Initiating bringup                                               
sd 3:0:0:0: [sdc] 4096-byte physical blocks                                     
sd 3:0:0:0: [sdc] Write Protect is off                                          
sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPA
 sdc: sdc1                                                                      
sd 3:0:0:0: [sdc] Attached SCSI disk                                            
ioc1: LSI53C1030 B2: Capabilities={Initiator,Target}                            
scsi host5: ioc1: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=68     
 sda: sda1 sda2 sda3 sda4                                                       
sd 4:0:2:0: [sdb] Attached SCSI disk                                            
sd 4:0:0:0: [sda] Attached SCSI disk                                            
scsi_id(992): unaligned access to 0x00000000fae5b009 at ip=0x00000000410039a7   
scsi_id(993): unaligned access to 0x00000000fa7b9009 at ip=0x00000000410039a7   
Backtrace:                                                                      
 [<000000000c1bb008>] scsi_init_sgtable+0x70/0x168 [scsi_mod]                   
 [<000000000c1bb16c>] scsi_init_io+0x6c/0x250 [scsi_mod]                        
 [<00000000107355a0>] sd_setup_read_write_cmnd+0x58/0x940 [sd_mod]              
 [<0000000010735ecc>] sd_init_command+0x44/0x130 [sd_mod]                       
 [<000000000c1bb454>] scsi_setup_cmnd+0x104/0x1c0 [scsi_mod]                    
 [<000000000c1bb7a0>] scsi_prep_fn+0x100/0x340 [scsi_mod]                       
 [<000000004035cc50>] blk_peek_request+0x1b8/0x298                              
 [<000000000c1bd3b0>] scsi_request_fn+0xf8/0xab0 [scsi_mod]                     
 [<00000000403584ec>] __blk_run_queue+0x4c/0x70                                 
 [<000000004038126c>] cfq_insert_request+0x2dc/0x580                            
 [<00000000403576ac>] __elv_add_request+0x1b4/0x300                             
                                                                                
                                                                                
Bad Address (null pointer deref?): Code=15 regs=000000007c65d260 (Addr=0000003b)
CPU: 2 PID: 936 Comm: systemd-udevd Not tainted 4.2.0+ #1                       
task: 000000033f98a348 ti: 000000007c65c000 task.ti: 000000007c65c000           
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00001000000001001111111100001110 Not tainted                               
r00-03  000000ff0804ff0e 000000007c65d130 0000000040363660 000000007c65d130     
r04-07  00000000406f18f0 0000000000004000 0000000000000320 0000000000000000     
r08-11  0000000000000000 0000000000000001 0001003b00000000 000000007e650dc0     
r12-15  0000000000001000 0000000000000032 0000000000000004 0000000042d0d780     
r16-19  0000000000000000 000000007e4cf088 0000000000001000 0000000000001000     
r20-23  0000000000000000 000000007c1ce000 0000000000011000 000000004076d900     
r24-27  0002d12b3ff4bb53 cffd2ed4c0000000 000000007e48cb20 00000000406f18f0     
r28-31  0001003b00000000 000000007c65d230 000000007c65d260 0000000000000001     
sr00-03  0000000000019000 0000000000000000 0000000000000000 0000000000019000    
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000    
                                                                                
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040363668 000000004036366c 
 IIR: 0d4010dc    ISR: 0000000000010000  IOR: 0000003b00000000                  
 CPU:        2   CR30: 000000007c65c000 CR31: ffffffffffffffff                  
 ORIG_R28: 0000000000000000                                                     
 IAOQ[0]: blk_rq_map_sg+0x310/0x5d8                                             
 IAOQ[1]: blk_rq_map_sg+0x314/0x5d8                                             
 RP(r2): blk_rq_map_sg+0x308/0x5d8                                              
Backtrace:                                                                      
 [<000000000c1bb008>] scsi_init_sgtable+0x70/0x168 [scsi_mod]                   
 [<000000000c1bb16c>] scsi_init_io+0x6c/0x250 [scsi_mod]                        
 [<00000000107355a0>] sd_setup_read_write_cmnd+0x58/0x940 [sd_mod]              
 [<0000000010735ecc>] sd_init_command+0x44/0x130 [sd_mod]                       
 [<000000000c1bb454>] scsi_setup_cmnd+0x104/0x1c0 [scsi_mod]                    
 [<000000000c1bb7a0>] scsi_prep_fn+0x100/0x340 [scsi_mod]                       
 [<000000004035cc50>] blk_peek_request+0x1b8/0x298                              
 [<000000000c1bd3b0>] scsi_request_fn+0xf8/0xab0 [scsi_mod]                     
 [<00000000403584ec>] __blk_run_queue+0x4c/0x70                                 
 [<000000004038126c>] cfq_insert_request+0x2dc/0x580                            
 [<00000000403576ac>] __elv_add_request+0x1b4/0x300                             
                                                                                
Kernel panic - not syncing: Bad Address (null pointer deref?)                   

Dave
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John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:37:53 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Unaligned access in scsi blk_rq_map_sg
Date: Sat, 12 Sep 2015 18:40:46 -0400
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On 2015-09-12, at 6:13 PM, John David Anglin wrote:

> With Linus' tree at head, I got the following boot error today:
> 
> scsi 4:0:0:0: Direct-Access     HP 73.4G ST373207LW       HPC1 PQ: 0 ANSI: 3    
> scsi target4:0:0: Beginning Domain Validation                                   
> scsi target4:0:0: Ending Domain Validation                                      
> scsi target4:0:0: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW PCOMP (6.2)
> scsi 4:0:2:0: Direct-Access     HP 73.4G ST373207LW       HPC1 PQ: 0 ANSI: 3    
> scsi target4:0:2: Beginning Domain Validation                                   
> scsi target4:0:2: Ending Domain Validation                                      
> scsi target4:0:2: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW PCOMP (6.2)
> ata3: SATA link down (SStatus 0 SControl 0)                                     
> random: nonblocking pool is initialized                                         
> ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 0)                            
> ata4.00: ATA-9: ST3000DM001-1ER166, CC25, max UDMA/133                          
> ata4.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32)                   
> ata4.00: configured for UDMA/100                                                
> scsi 3:0:0:0: Direct-Access     ATA      ST3000DM001-1ER1 CC25 PQ: 0 ANSI: 5    
> sd 3:0:0:0: [sdc] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB)        
> sd 4:0:0:0: [sda] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)         
> sd 4:0:2:0: [sdb] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)         
> sd 4:0:0:0: [sda] Write Protect is off                                          
> sd 4:0:2:0: [sdb] Write Protect is off                                          
> sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FA
> sd 4:0:2:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FA
> mptbase: ioc1: Initiating bringup                                               
> sd 3:0:0:0: [sdc] 4096-byte physical blocks                                     
> sd 3:0:0:0: [sdc] Write Protect is off                                          
> sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPA
> sdc: sdc1                                                                      
> sd 3:0:0:0: [sdc] Attached SCSI disk                                            
> ioc1: LSI53C1030 B2: Capabilities={Initiator,Target}                            
> scsi host5: ioc1: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=68     
> sda: sda1 sda2 sda3 sda4                                                       
> sd 4:0:2:0: [sdb] Attached SCSI disk                                            
> sd 4:0:0:0: [sda] Attached SCSI disk                                            
> scsi_id(992): unaligned access to 0x00000000fae5b009 at ip=0x00000000410039a7   
> scsi_id(993): unaligned access to 0x00000000fa7b9009 at ip=0x00000000410039a7   
> Backtrace:                                                                      
> [<000000000c1bb008>] scsi_init_sgtable+0x70/0x168 [scsi_mod]                   
> [<000000000c1bb16c>] scsi_init_io+0x6c/0x250 [scsi_mod]                        
> [<00000000107355a0>] sd_setup_read_write_cmnd+0x58/0x940 [sd_mod]              
> [<0000000010735ecc>] sd_init_command+0x44/0x130 [sd_mod]                       
> [<000000000c1bb454>] scsi_setup_cmnd+0x104/0x1c0 [scsi_mod]                    
> [<000000000c1bb7a0>] scsi_prep_fn+0x100/0x340 [scsi_mod]                       
> [<000000004035cc50>] blk_peek_request+0x1b8/0x298                              
> [<000000000c1bd3b0>] scsi_request_fn+0xf8/0xab0 [scsi_mod]                     
> [<00000000403584ec>] __blk_run_queue+0x4c/0x70                                 
> [<000000004038126c>] cfq_insert_request+0x2dc/0x580                            
> [<00000000403576ac>] __elv_add_request+0x1b4/0x300                             
> 
> 
> Bad Address (null pointer deref?): Code=15 regs=000000007c65d260 (Addr=0000003b)
> CPU: 2 PID: 936 Comm: systemd-udevd Not tainted 4.2.0+ #1                       
> task: 000000033f98a348 ti: 000000007c65c000 task.ti: 000000007c65c000           
> 
>     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
> PSW: 00001000000001001111111100001110 Not tainted                               
> r00-03  000000ff0804ff0e 000000007c65d130 0000000040363660 000000007c65d130     
> r04-07  00000000406f18f0 0000000000004000 0000000000000320 0000000000000000     
> r08-11  0000000000000000 0000000000000001 0001003b00000000 000000007e650dc0     
> r12-15  0000000000001000 0000000000000032 0000000000000004 0000000042d0d780     
> r16-19  0000000000000000 000000007e4cf088 0000000000001000 0000000000001000     
> r20-23  0000000000000000 000000007c1ce000 0000000000011000 000000004076d900     
> r24-27  0002d12b3ff4bb53 cffd2ed4c0000000 000000007e48cb20 00000000406f18f0     
> r28-31  0001003b00000000 000000007c65d230 000000007c65d260 0000000000000001     
> sr00-03  0000000000019000 0000000000000000 0000000000000000 0000000000019000    
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000    
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040363668 000000004036366c 
> IIR: 0d4010dc    ISR: 0000000000010000  IOR: 0000003b00000000                  
> CPU:        2   CR30: 000000007c65c000 CR31: ffffffffffffffff                  
> ORIG_R28: 0000000000000000                                                     
> IAOQ[0]: blk_rq_map_sg+0x310/0x5d8                                             
> IAOQ[1]: blk_rq_map_sg+0x314/0x5d8                                             
> RP(r2): blk_rq_map_sg+0x308/0x5d8                                              
> Backtrace:                                                                      
> [<000000000c1bb008>] scsi_init_sgtable+0x70/0x168 [scsi_mod]                   
> [<000000000c1bb16c>] scsi_init_io+0x6c/0x250 [scsi_mod]                        
> [<00000000107355a0>] sd_setup_read_write_cmnd+0x58/0x940 [sd_mod]              
> [<0000000010735ecc>] sd_init_command+0x44/0x130 [sd_mod]                       
> [<000000000c1bb454>] scsi_setup_cmnd+0x104/0x1c0 [scsi_mod]                    
> [<000000000c1bb7a0>] scsi_prep_fn+0x100/0x340 [scsi_mod]                       
> [<000000004035cc50>] blk_peek_request+0x1b8/0x298                              
> [<000000000c1bd3b0>] scsi_request_fn+0xf8/0xab0 [scsi_mod]                     
> [<00000000403584ec>] __blk_run_queue+0x4c/0x70                                 
> [<000000004038126c>] cfq_insert_request+0x2dc/0x580                            
> [<00000000403576ac>] __elv_add_request+0x1b4/0x300                             
> 
> Kernel panic - not syncing: Bad Address (null pointer deref?)                   


It appears the unaligned accesses were present before but didn't cause a panic:

ioc1: LSI53C1030 B2: Capabilities={Initiator,Target}                            
scsi 3:0:0:0: Direct-Access     ATA      ST3000DM001-1ER1 CC25 PQ: 0 ANSI: 5    
sd 3:0:0:0: [sdc] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB)        
sd 3:0:0:0: [sdc] 4096-byte physical blocks                                     
sd 3:0:0:0: [sdc] Write Protect is off                                          
sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPA
 sdc: sdc1                                                                      
sd 3:0:0:0: [sdc] Attached SCSI disk                                            
scsi host5: ioc1: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=68     
sd 4:0:2:0: [sdb] Spinning up disk...                                           
sd 4:0:0:0: [sda] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)         
sd 4:0:0:0: [sda] Write Protect is off                                          
sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FA
.                                                                               
 sda: sda1 sda2 sda3 sda4                                                       
sd 4:0:0:0: [sda] Attached SCSI disk                                            
...                                                                             
scsi_id(938): unaligned access to 0x00000000faed4009 at ip=0x00000000410038df   
.....ready                                                                      
sd 4:0:2:0: [sdb] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)         
sd 4:0:2:0: [sdb] Write Protect is off                                          
sd 4:0:2:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FA
sd 4:0:2:0: [sdb] Attached SCSI disk                                            
scsi_id(942): unaligned access to 0x00000000fae77009 at ip=0x00000000410038df   
Begin: Loading essential drivers ... done.                                      
Begin: Running /scripts/init-premount ... done.                                 
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... done.                                
Begin: Checking root file system ... fsck from util-linux 2.26.2                
ROOT: clean, 128634/4341760 files, 3291642/17343502 blocks                      
done.                                                                           
kjournald starting.  Commit interval 5 seconds                                  
EXT3-fs (sda4): mounted filesystem with writeback data mode                     
done.                                                                           
Begin: Running /scripts/local-bottom ... done.                                  
Begin: Running /scripts/init-bottom ... done.                                   
INIT: version 2.88 booting                                                      
[info] Using makefile-style concurrent boot in runlevel S.                      
[....] Starting the hotplug events dispatcher: systemd-udevdstarting version 226
. ok                                                                            
[....] Synthesizing the initial hotplug events...done.                          
[....] Waiting for /dev to be fully populated...sd 4:0:0:0: Attached scsi gener0
sd 4:0:2:0: Attached scsi generic sg1 type 0                                    
sd 3:0:0:0: Attached scsi generic sg2 type 0                                    
scsi_id(1192): unaligned access to 0x00000000faeeb009 at ip=0x00000000410039a7  
scsi_id(1193): unaligned access to 0x00000000faa1f009 at ip=0x00000000410039a7 

The above is with 4.0.8+.

Dave
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John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:37:53 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Unaligned access in scsi blk_rq_map_sg
Date: Sun, 13 Sep 2015 15:40:25 -0400
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On 2015-09-12, at 6:40 PM, John David Anglin wrote:

> On 2015-09-12, at 6:13 PM, John David Anglin wrote:
>=20
>> With Linus' tree at head, I got the following boot error today:
>>=20
>> scsi 4:0:0:0: Direct-Access     HP 73.4G ST373207LW       HPC1 PQ: 0 =
ANSI: 3   =20
>> scsi target4:0:0: Beginning Domain Validation                         =
         =20
>> scsi target4:0:0: Ending Domain Validation                            =
         =20
>> scsi target4:0:0: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW =
PCOMP (6.2)
>> scsi 4:0:2:0: Direct-Access     HP 73.4G ST373207LW       HPC1 PQ: 0 =
ANSI: 3   =20
>> scsi target4:0:2: Beginning Domain Validation                         =
         =20
>> scsi target4:0:2: Ending Domain Validation                            =
         =20
>> scsi target4:0:2: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW =
PCOMP (6.2)
>> ata3: SATA link down (SStatus 0 SControl 0)                           =
         =20
>> random: nonblocking pool is initialized                               =
         =20
>> ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 0)                  =
         =20
>> ata4.00: ATA-9: ST3000DM001-1ER166, CC25, max UDMA/133                =
         =20
>> ata4.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32)         =
         =20
>> ata4.00: configured for UDMA/100                                      =
         =20
>> scsi 3:0:0:0: Direct-Access     ATA      ST3000DM001-1ER1 CC25 PQ: 0 =
ANSI: 5   =20
>> sd 3:0:0:0: [sdc] 5860533168 512-byte logical blocks: (3.00 TB/2.72 =
TiB)       =20
>> sd 4:0:0:0: [sda] 143374738 512-byte logical blocks: (73.4 GB/68.3 =
GiB)        =20
>> sd 4:0:2:0: [sdb] 143374738 512-byte logical blocks: (73.4 GB/68.3 =
GiB)        =20
>> sd 4:0:0:0: [sda] Write Protect is off                                =
         =20
>> sd 4:0:2:0: [sdb] Write Protect is off                                =
         =20
>> sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports =
DPO and FA
>> sd 4:0:2:0: [sdb] Write cache: enabled, read cache: enabled, supports =
DPO and FA
>> mptbase: ioc1: Initiating bringup                                     =
         =20
>> sd 3:0:0:0: [sdc] 4096-byte physical blocks                           =
         =20
>> sd 3:0:0:0: [sdc] Write Protect is off                                =
         =20
>> sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't =
support DPA
>> sdc: sdc1                                                             =
        =20
>> sd 3:0:0:0: [sdc] Attached SCSI disk                                  =
         =20
>> ioc1: LSI53C1030 B2: Capabilities=3D{Initiator,Target}                =
           =20
>> scsi host5: ioc1: LSI53C1030 B2, FwRev=3D01032341h, Ports=3D1, =
MaxQ=3D255, IRQ=3D68    =20
>> sda: sda1 sda2 sda3 sda4                                              =
        =20
>> sd 4:0:2:0: [sdb] Attached SCSI disk                                  =
         =20
>> sd 4:0:0:0: [sda] Attached SCSI disk                                  =
         =20
>> scsi_id(992): unaligned access to 0x00000000fae5b009 at =
ip=3D0x00000000410039a7  =20
>> scsi_id(993): unaligned access to 0x00000000fa7b9009 at =
ip=3D0x00000000410039a7  =20
>> Backtrace:                                                            =
         =20
>> [<000000000c1bb008>] scsi_init_sgtable+0x70/0x168 [scsi_mod]          =
        =20
>> [<000000000c1bb16c>] scsi_init_io+0x6c/0x250 [scsi_mod]               =
        =20
>> [<00000000107355a0>] sd_setup_read_write_cmnd+0x58/0x940 [sd_mod]     =
        =20
>> [<0000000010735ecc>] sd_init_command+0x44/0x130 [sd_mod]              =
        =20
>> [<000000000c1bb454>] scsi_setup_cmnd+0x104/0x1c0 [scsi_mod]           =
        =20
>> [<000000000c1bb7a0>] scsi_prep_fn+0x100/0x340 [scsi_mod]              =
        =20
>> [<000000004035cc50>] blk_peek_request+0x1b8/0x298                     =
        =20
>> [<000000000c1bd3b0>] scsi_request_fn+0xf8/0xab0 [scsi_mod]            =
        =20
>> [<00000000403584ec>] __blk_run_queue+0x4c/0x70                        =
        =20
>> [<000000004038126c>] cfq_insert_request+0x2dc/0x580                   =
        =20
>> [<00000000403576ac>] __elv_add_request+0x1b4/0x300                    =
        =20
>>=20
>>=20
>> Bad Address (null pointer deref?): Code=3D15 regs=3D000000007c65d260 =
(Addr=3D0000003b)
>> CPU: 2 PID: 936 Comm: systemd-udevd Not tainted 4.2.0+ #1             =
         =20
>> task: 000000033f98a348 ti: 000000007c65c000 task.ti: 000000007c65c000 =
         =20
>>=20
>>    YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                   =
       =20
>> PSW: 00001000000001001111111100001110 Not tainted                     =
         =20
>> r00-03  000000ff0804ff0e 000000007c65d130 0000000040363660 =
000000007c65d130    =20
>> r04-07  00000000406f18f0 0000000000004000 0000000000000320 =
0000000000000000    =20
>> r08-11  0000000000000000 0000000000000001 0001003b00000000 =
000000007e650dc0    =20
>> r12-15  0000000000001000 0000000000000032 0000000000000004 =
0000000042d0d780    =20
>> r16-19  0000000000000000 000000007e4cf088 0000000000001000 =
0000000000001000    =20
>> r20-23  0000000000000000 000000007c1ce000 0000000000011000 =
000000004076d900    =20
>> r24-27  0002d12b3ff4bb53 cffd2ed4c0000000 000000007e48cb20 =
00000000406f18f0    =20
>> r28-31  0001003b00000000 000000007c65d230 000000007c65d260 =
0000000000000001    =20
>> sr00-03  0000000000019000 0000000000000000 0000000000000000 =
0000000000019000   =20
>> sr04-07  0000000000000000 0000000000000000 0000000000000000 =
0000000000000000   =20
>>=20
>> IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040363668 =
000000004036366c=20
>> IIR: 0d4010dc    ISR: 0000000000010000  IOR: 0000003b00000000         =
        =20
>> CPU:        2   CR30: 000000007c65c000 CR31: ffffffffffffffff         =
        =20
>> ORIG_R28: 0000000000000000                                            =
        =20
>> IAOQ[0]: blk_rq_map_sg+0x310/0x5d8                                    =
        =20
>> IAOQ[1]: blk_rq_map_sg+0x314/0x5d8                                    =
        =20
>> RP(r2): blk_rq_map_sg+0x308/0x5d8                                     =
        =20
>> Backtrace:                                                            =
         =20
>> [<000000000c1bb008>] scsi_init_sgtable+0x70/0x168 [scsi_mod]          =
        =20
>> [<000000000c1bb16c>] scsi_init_io+0x6c/0x250 [scsi_mod]               =
        =20
>> [<00000000107355a0>] sd_setup_read_write_cmnd+0x58/0x940 [sd_mod]     =
        =20
>> [<0000000010735ecc>] sd_init_command+0x44/0x130 [sd_mod]              =
        =20
>> [<000000000c1bb454>] scsi_setup_cmnd+0x104/0x1c0 [scsi_mod]           =
        =20
>> [<000000000c1bb7a0>] scsi_prep_fn+0x100/0x340 [scsi_mod]              =
        =20
>> [<000000004035cc50>] blk_peek_request+0x1b8/0x298                     =
        =20
>> [<000000000c1bd3b0>] scsi_request_fn+0xf8/0xab0 [scsi_mod]            =
        =20
>> [<00000000403584ec>] __blk_run_queue+0x4c/0x70                        =
        =20
>> [<000000004038126c>] cfq_insert_request+0x2dc/0x580                   =
        =20
>> [<00000000403576ac>] __elv_add_request+0x1b4/0x300                    =
        =20
>>=20
>> Kernel panic - not syncing: Bad Address (null pointer deref?)         =
         =20
>=20
>=20
> It appears the unaligned accesses were present before but didn't cause =
a panic:
>=20
> ioc1: LSI53C1030 B2: Capabilities=3D{Initiator,Target}                 =
          =20
> scsi 3:0:0:0: Direct-Access     ATA      ST3000DM001-1ER1 CC25 PQ: 0 =
ANSI: 5   =20
> sd 3:0:0:0: [sdc] 5860533168 512-byte logical blocks: (3.00 TB/2.72 =
TiB)       =20
> sd 3:0:0:0: [sdc] 4096-byte physical blocks                            =
        =20
> sd 3:0:0:0: [sdc] Write Protect is off                                 =
        =20
> sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't =
support DPA
> sdc: sdc1                                                              =
       =20
> sd 3:0:0:0: [sdc] Attached SCSI disk                                   =
        =20
> scsi host5: ioc1: LSI53C1030 B2, FwRev=3D01032341h, Ports=3D1, =
MaxQ=3D255, IRQ=3D68    =20
> sd 4:0:2:0: [sdb] Spinning up disk...                                  =
        =20
> sd 4:0:0:0: [sda] 143374738 512-byte logical blocks: (73.4 GB/68.3 =
GiB)        =20
> sd 4:0:0:0: [sda] Write Protect is off                                 =
        =20
> sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports =
DPO and FA
> .                                                                      =
        =20
> sda: sda1 sda2 sda3 sda4                                               =
       =20
> sd 4:0:0:0: [sda] Attached SCSI disk                                   =
        =20
> ...                                                                    =
        =20
> scsi_id(938): unaligned access to 0x00000000faed4009 at =
ip=3D0x00000000410038df  =20
> .....ready                                                             =
        =20
> sd 4:0:2:0: [sdb] 143374738 512-byte logical blocks: (73.4 GB/68.3 =
GiB)        =20
> sd 4:0:2:0: [sdb] Write Protect is off                                 =
        =20
> sd 4:0:2:0: [sdb] Write cache: enabled, read cache: enabled, supports =
DPO and FA
> sd 4:0:2:0: [sdb] Attached SCSI disk                                   =
        =20
> scsi_id(942): unaligned access to 0x00000000fae77009 at =
ip=3D0x00000000410038df  =20
> Begin: Loading essential drivers ... done.                             =
        =20
> Begin: Running /scripts/init-premount ... done.                        =
        =20
> Begin: Mounting root file system ... Begin: Running /scripts/local-top =
... done.
> Begin: Running /scripts/local-premount ... done.                       =
        =20
> Begin: Checking root file system ... fsck from util-linux 2.26.2       =
        =20
> ROOT: clean, 128634/4341760 files, 3291642/17343502 blocks             =
        =20
> done.                                                                  =
        =20
> kjournald starting.  Commit interval 5 seconds                         =
        =20
> EXT3-fs (sda4): mounted filesystem with writeback data mode            =
        =20
> done.                                                                  =
        =20
> Begin: Running /scripts/local-bottom ... done.                         =
        =20
> Begin: Running /scripts/init-bottom ... done.                          =
        =20
> INIT: version 2.88 booting                                             =
        =20
> [info] Using makefile-style concurrent boot in runlevel S.             =
        =20
> [....] Starting the hotplug events dispatcher: systemd-udevdstarting =
version 226
> . ok                                                                   =
        =20
> [....] Synthesizing the initial hotplug events...done.                 =
        =20
> [....] Waiting for /dev to be fully populated...sd 4:0:0:0: Attached =
scsi gener0
> sd 4:0:2:0: Attached scsi generic sg1 type 0                           =
        =20
> sd 3:0:0:0: Attached scsi generic sg2 type 0                           =
        =20
> scsi_id(1192): unaligned access to 0x00000000faeeb009 at =
ip=3D0x00000000410039a7 =20
> scsi_id(1193): unaligned access to 0x00000000faa1f009 at =
ip=3D0x00000000410039a7=20
>=20
> The above is with 4.0.8+.


I no longer think the panic had anything to do with unaligned accesses.

Attached is disassembly of blk_rq_map_sg in blk-merge.o.  The error is =
here:

 300:   e8 00 a0 00     b,l 308 <blk_rq_map_sg+0x308>,rp
 304:   08 1b 02 44     copy dp,r4
 308:   08 04 02 5b     copy r4,dp
 30c:   08 1c 02 4a     copy ret0,r10
 310:   0d 40 10 dc     ldd 0(r10),ret0

The call at 300 appears to be a call to sg_next:

Relocation section '.rela.text.blk_rq_map_sg' at offset 0x3d08 contains =
14 entries:
  Offset          Info           Type           Sym. Value    Sym. Name =
+ Addend
00000000015c  002300000022 R_PARISC_DLTIND21 0000000000000000 node_data =
+ 0
000000000168  000700000022 R_PARISC_DLTIND21 0000000000000001 =
__warned.22406 + 0
000000000178  002000000022 R_PARISC_DLTIND21 0000000000000000 .LC0 + 0
000000000204  002300000026 R_PARISC_DLTIND14 0000000000000000 node_data =
+ 0
000000000300  00300000004a R_PARISC_PCREL22F 0000000000000000 sg_next + =
0
0000000003a8  00300000004a R_PARISC_PCREL22F 0000000000000000 sg_next + =
0
0000000003e0  003100000022 R_PARISC_DLTIND21 0000000000000000 pfnnid_map =
+ 0
0000000003e4  003100000026 R_PARISC_DLTIND14 0000000000000000 pfnnid_map =
+ 0
0000000003f8  002300000022 R_PARISC_DLTIND21 0000000000000000 node_data =
+ 0
0000000003fc  002300000026 R_PARISC_DLTIND14 0000000000000000 node_data =
+ 0
000000000574  000700000026 R_PARISC_DLTIND14 0000000000000001 =
__warned.22406 + 0
000000000588  002000000026 R_PARISC_DLTIND14 0000000000000000 .LC0 + 0
000000000590  00240000004a R_PARISC_PCREL22F 0000000000000000 printk + 0
0000000005bc  00320000004a R_PARISC_PCREL22F 0000000000000000 memset + 0

The result of the call ret0 is copied to r10 and then we get page fault =
executing ldd 0(r10),ret0.

Probably, we are in this block of code:

        if (q->dma_drain_size && q->dma_drain_needed(rq)) {
                if (rq->cmd_flags & REQ_WRITE)
                        memset(q->dma_drain_buffer, 0, =
q->dma_drain_size);

                sg_unmark_end(sg);
                sg =3D sg_next(sg);
                sg_set_page(sg, virt_to_page(q->dma_drain_buffer),
                            q->dma_drain_size,
                            ((unsigned long)q->dma_drain_buffer) &
                            (PAGE_SIZE - 1));
                nsegs++;
                rq->extra_len +=3D q->dma_drain_size;
        }


Dave
--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-21-9557822
Content-Disposition: attachment;
	filename=blk_rq_map_sg.dis.txt
Content-Type: text/plain;
	name="blk_rq_map_sg.dis.txt"
Content-Transfer-Encoding: 7bit

Disassembly of section .text.blk_rq_map_sg:

0000000000000000 <blk_rq_map_sg>:
   0:   08 03 02 41     copy r3,r1
   4:   0f c2 12 c1     std rp,-10(sp)
   8:   08 1e 02 43     copy sp,r3
   c:   73 c1 02 68     std,ma r1,130(sp)
  10:   70 72 00 80     std r18,40(r3)
  14:   08 19 02 52     copy r25,r18
  18:   70 71 00 90     std r17,48(r3)
  1c:   08 1a 02 51     copy r26,r17
  20:   70 70 00 a0     std r16,50(r3)
  24:   70 6f 00 b0     std r15,58(r3)
  28:   70 6e 00 c0     std r14,60(r3)
  2c:   70 6d 00 d0     std r13,68(r3)
  30:   70 6c 00 e0     std r12,70(r3)
  34:   70 6b 00 f0     std r11,78(r3)
  38:   70 6a 01 00     std r10,80(r3)
  3c:   70 69 01 10     std r9,88(r3)
  40:   70 68 01 20     std r8,90(r3)
  44:   70 67 01 30     std r7,98(r3)
  48:   70 66 01 40     std r6,a0(r3)
  4c:   70 65 01 50     std r5,a8(r3)
  50:   70 64 01 60     std r4,b0(r3)
  54:   53 2b 00 d0     ldd 68(r25),r11
  58:   9d 60 28 20     cmpb,*= r0,r11,470 <blk_rq_map_sg+0x470>
  5c:   08 18 02 50     copy r24,r16
  60:   51 7c 00 30     ldd 18(r11),ret0
  64:   c7 1c c1 b8     bb,*>= ret0,18,148 <blk_rq_map_sg+0x148>
  68:   43 49 0b 58     ldb 5ac(r26),r9
  6c:   45 7c 00 c0     ldh 60(r11),ret0
  70:   87 80 27 f2     cmpib,=,n 0,ret0,470 <blk_rq_map_sg+0x470>
  74:   51 77 00 d0     ldd 68(r11),r23
  78:   49 7f 00 58     ldw 2c(r11),r31
  7c:   f3 ff 10 84     depd,z,* r31,59,60,r31
  80:   0b f7 0a 18     add,l r23,r31,r24
  84:   0f 10 10 95     ldw 8(r24),r21
  88:   49 73 00 60     ldw 30(r11),r19
  8c:   0a 75 04 14     sub r21,r19,r20
  90:   0f 18 10 95     ldw c(r24),r21
  94:   49 76 00 50     ldw 28(r11),r22
  98:   0a 75 0a 13     add,l r21,r19,r19
  9c:   0e 00 10 dc     ldd 0(r16),ret0
  a0:   0f f7 00 df     ldd r23(r31),r31
  a4:   db f5 0b fe     extrd,u,* r31,63,2,r21
  a8:   0a 96 b8 80     cmpclr,>> r22,r20,r0
  ac:   08 16 02 54     copy r22,r20
  b0:   be a0 27 88     cmpb,*<> r0,r21,47c <blk_rq_map_sg+0x47c>
  b4:   db 9c 0b fe     extrd,u,* ret0,63,2,ret0
  b8:   0b 9f 02 5c     or r31,ret0,ret0
  bc:   0e 13 12 90     stw r19,8(r16)
  c0:   34 0e 00 02     ldi 1,r14
  c4:   0e 1c 12 c0     std ret0,0(r16)
  c8:   0e 14 12 98     stw r20,c(r16)
  cc:   52 5c 00 80     ldd 40(r18),ret0
  d0:   db 80 cc 9f     extrd,s,*>= ret0,36,1,r0
  d4:   e8 00 08 72     b,l,n 514 <blk_rq_map_sg+0x514>,r0
  d8:   4a 3c 09 88     ldw 4c4(r17),ret0
  dc:   8f 80 25 08     cmpib,<> 0,ret0,368 <blk_rq_map_sg+0x368>
  e0:   08 1b 02 44     copy dp,r4
  e4:   9e 00 20 1a     cmpb,*=,n r0,r16,f8 <blk_rq_map_sg+0xf8>
  e8:   0e 00 10 dc     ldd 0(r16),ret0
  ec:   f7 80 04 1f     depdi,* 0,63,1,ret0
  f0:   f7 9f 04 3f     depdi,* -1,62,1,ret0
  f4:   0e 1c 12 c0     std ret0,0(r16)
  f8:   08 0e 02 5c     copy r14,ret0
  fc:   0c 61 10 c2     ldd -10(r3),rp
 100:   50 72 00 80     ldd 40(r3),r18
 104:   50 71 00 90     ldd 48(r3),r17
 108:   50 70 00 a0     ldd 50(r3),r16
 10c:   50 6f 00 b0     ldd 58(r3),r15
 110:   50 6e 00 c0     ldd 60(r3),r14
 114:   50 6d 00 d0     ldd 68(r3),r13
 118:   50 6c 00 e0     ldd 70(r3),r12
 11c:   50 6b 00 f0     ldd 78(r3),r11
 120:   50 6a 01 00     ldd 80(r3),r10
 124:   50 69 01 10     ldd 88(r3),r9
 128:   50 68 01 20     ldd 90(r3),r8
 12c:   50 67 01 30     ldd 98(r3),r7
 130:   50 66 01 40     ldd a0(r3),r6
 134:   50 65 01 50     ldd a8(r3),r5
 138:   50 64 01 60     ldd b0(r3),r4
 13c:   34 7e 00 80     ldo 40(r3),sp
 140:   e8 40 d0 00     bve (rp)
 144:   53 c3 3f 8d     ldd,mb -40(sp),r3
 148:   c6 dc 5e 57     bb,*<,n ret0,16,78 <blk_rq_map_sg+0x78>
 14c:   51 77 00 d0     ldd 68(r11),r23
 150:   37 c1 3f a1     ldo -30(sp),r1
 154:   0c 61 12 d0     std r1,8(r3)
 158:   34 0a 00 00     ldi 0,r10
 15c:   2b 60 00 00     addil L%0,dp,r1
 160:   70 61 00 20     std r1,10(r3)
 164:   34 04 00 00     ldi 0,r4
 168:   2b 60 00 00     addil L%0,dp,r1
 16c:   34 1d 00 00     ldi 0,ret1
 170:   70 61 00 40     std r1,20(r3)
 174:   34 1f 00 00     ldi 0,r31
 178:   2b 60 00 00     addil L%0,dp,r1
 17c:   70 79 00 60     std r25,30(r3)
 180:   34 0e 00 00     ldi 0,r14
 184:   70 61 00 50     std r1,28(r3)
 188:   70 78 00 30     std r24,18(r3)
 18c:   49 6d 00 58     ldw 2c(r11),r13
 190:   49 65 00 50     ldw 28(r11),r5
 194:   f0 cd 10 84     depd,z,* r13,59,60,r6
 198:   9c a0 27 70     cmpb,*= r0,r5,558 <blk_rq_map_sg+0x558>
 19c:   49 67 00 60     ldw 30(r11),r7
 1a0:   51 73 00 d0     ldd 68(r11),r19
 1a4:   08 d3 0a 1c     add,l r19,r6,ret0
 1a8:   0c d3 00 cf     ldd r19(r6),r15
 1ac:   0f 98 10 94     ldw c(ret0),r20
 1b0:   0f 90 10 93     ldw 8(ret0),r19
 1b4:   08 f4 0a 08     add,l r20,r7,r8
 1b8:   08 f3 04 13     sub r19,r7,r19
 1bc:   d9 10 0b e0     extrd,u,* r8,63,32,r16
 1c0:   08 13 02 4c     copy r19,r12
 1c4:   09 85 b8 80     cmpclr,>> r5,r12,r0
 1c8:   08 05 02 4c     copy r5,r12
 1cc:   9d 40 26 30     cmpb,*= r0,r10,4ec <blk_rq_map_sg+0x4ec>
 1d0:   d9 92 0b e0     extrd,u,* r12,63,32,r18
 1d4:   9d 20 22 22     cmpb,*=,n r0,r9,2ec <blk_rq_map_sg+0x2ec>
 1d8:   0d 58 10 96     ldw c(r10),r22
 1dc:   4a 3c 0a f8     ldw 57c(r17),ret0
 1e0:   09 96 0a 16     add,l r22,r12,r22
 1e4:   8b 96 a2 02     cmpb,>>,n r22,ret0,2ec <blk_rq_map_sg+0x2ec>
 1e8:   0f e0 10 d5     ldd 0(r31),r21
 1ec:   0d e0 10 dc     ldd 0(r15),ret0
 1f0:   da b8 00 5d     extrd,u,* r21,2,3,r24
 1f4:   db 9c 00 5d     extrd,u,* ret0,2,3,ret0
 1f8:   f3 3c 10 63     depd,z,* ret0,60,61,r25
 1fc:   50 61 00 20     ldd 10(r3),r1
 200:   f2 b8 10 63     depd,z,* r24,60,61,r21
 204:   50 37 00 00     ldd 0(r1),r23
 208:   0b 15 04 15     sub r21,r24,r21
 20c:   f2 b5 10 63     depd,z,* r21,60,61,r21
 210:   0b 15 04 15     sub r21,r24,r21
 214:   0b 99 04 18     sub r25,ret0,r24
 218:   f2 b5 10 c6     depd,z,* r21,57,58,r21
 21c:   36 b9 1a 40     ldo d20(r21),r25
 220:   0f 37 00 d9     ldd r23(r25),r25
 224:   0b 3f 04 1f     sub r31,r25,r31
 228:   db ff 1f 83     extrd,s,* r31,60,61,r31
 22c:   f3 3f 10 63     depd,z,* r31,60,61,r25
 230:   0b f9 04 19     sub r25,r31,r25
 234:   f3 39 10 84     depd,z,* r25,59,60,r25
 238:   0b f9 0a 19     add,l r25,r31,r25
 23c:   0b f9 0a 99     shladd,l r25,2,r31,r25
 240:   f0 59 10 a5     depd,z,* r25,58,59,rp
 244:   f3 18 10 63     depd,z,* r24,60,61,r24
 248:   36 b5 1a 60     ldo d30(r21),r21
 24c:   0e b7 00 da     ldd r23(r21),r26
 250:   0b 22 04 19     sub rp,r25,r25
 254:   f0 59 11 ef     depd,z,* r25,48,49,rp
 258:   08 59 0a 19     add,l r25,rp,r25
 25c:   0b 98 04 1c     sub r24,ret0,ret0
 260:   f0 59 13 de     depd,z,* r25,33,34,rp
 264:   f3 9c 10 c6     depd,z,* ret0,57,58,ret0
 268:   08 59 0a 02     add,l r25,rp,rp
 26c:   37 95 1a 40     ldo d20(ret0),r21
 270:   0e b7 00 d5     ldd r23(r21),r21
 274:   37 9c 1a 60     ldo d30(ret0),ret0
 278:   0a af 04 15     sub r15,r21,r21
 27c:   0f 97 00 dc     ldd r23(ret0),ret0
 280:   da b5 1f 83     extrd,s,* r21,60,61,r21
 284:   f3 15 10 63     depd,z,* r21,60,61,r24
 288:   0a b8 04 18     sub r24,r21,r24
 28c:   f3 18 10 84     depd,z,* r24,59,60,r24
 290:   0a b8 0a 18     add,l r24,r21,r24
 294:   0a b8 0a 98     shladd,l r24,2,r21,r24
 298:   f0 38 10 a5     depd,z,* r24,58,59,r1
 29c:   0b 01 04 18     sub r1,r24,r24
 2a0:   f3 38 11 ef     depd,z,* r24,48,49,r25
 2a4:   0b e2 0a 42     shladd,l rp,1,r31,rp
 2a8:   0b 38 0a 18     add,l r24,r25,r24
 2ac:   f0 42 10 63     depd,z,* rp,60,61,rp
 2b0:   f3 38 13 de     depd,z,* r24,33,34,r25
 2b4:   0b e2 04 02     sub rp,r31,rp
 2b8:   0b 38 0a 1f     add,l r24,r25,r31
 2bc:   0b 42 0a 1a     add,l rp,r26,r26
 2c0:   0a bf 0a 5f     shladd,l r31,1,r21,r31
 2c4:   f3 5a 11 8c     depd,z,* r26,51,52,r26
 2c8:   f3 ff 10 63     depd,z,* r31,60,61,r31
 2cc:   08 9a 0a 04     add,l r26,r4,r4
 2d0:   0a bf 04 15     sub r31,r21,r21
 2d4:   0b a4 0a 1d     add,l r4,ret1,ret1
 2d8:   0b 95 0a 15     add,l r21,ret0,r21
 2dc:   f3 95 11 8c     depd,z,* r21,51,52,ret0
 2e0:   0b 90 0a 1c     add,l r16,ret0,ret0
 2e4:   9f bc 24 10     cmpb,*= ret0,ret1,4f4 <blk_rq_map_sg+0x4f4>
 2e8:   36 5f 3f ff     ldo -1(r18),r31
 2ec:   0d 40 10 dc     ldd 0(r10),ret0
 2f0:   f7 80 04 3f     depdi,* 0,62,1,ret0
 2f4:   08 0a 02 5a     copy r10,r26
 2f8:   0d 5c 12 c0     std ret0,0(r10)
 2fc:   0c 70 10 dd     ldd 8(r3),ret1
 300:   e8 00 a0 00     b,l 308 <blk_rq_map_sg+0x308>,rp
 304:   08 1b 02 44     copy dp,r4
 308:   08 04 02 5b     copy r4,dp
 30c:   08 1c 02 4a     copy ret0,r10
 310:   0d 40 10 dc     ldd 0(r10),ret0
 314:   d9 ff 0b fe     extrd,u,* r15,63,2,r31
 318:   bf e0 22 b8     cmpb,*<> r0,r31,47c <blk_rq_map_sg+0x47c>
 31c:   db 9c 0b fe     extrd,u,* ret0,63,2,ret0
 320:   0b 8f 02 5c     or r15,ret0,ret0
 324:   35 ce 00 02     ldo 1(r14),r14
 328:   0d 5c 12 c0     std ret0,0(r10)
 32c:   0d 48 12 90     stw r8,8(r10)
 330:   d9 ce 0f e0     extrd,s,* r14,63,32,r14
 334:   0d 4c 12 98     stw r12,c(r10)
 338:   51 7c 00 30     ldd 18(r11),ret0
 33c:   34 1f 05 00     ldi 280,r31
 340:   0b fc 02 1c     and ret0,r31,ret0
 344:   9f 80 22 6a     cmpb,*=,n r0,ret0,480 <blk_rq_map_sg+0x480>
 348:   09 85 04 05     sub r5,r12,r5
 34c:   d8 a5 0b e0     extrd,u,* r5,63,32,r5
 350:   9c a0 23 e8     cmpb,*= r0,r5,54c <blk_rq_map_sg+0x54c>
 354:   f0 cd 10 84     depd,z,* r13,59,60,r6
 358:   08 12 02 5d     copy r18,ret1
 35c:   08 10 02 44     copy r16,r4
 360:   e8 1f 1c 75     b,l 1a0 <blk_rq_map_sg+0x1a0>,r0
 364:   08 0f 02 5f     copy r15,r31
 368:   52 3c 01 70     ldd b8(r17),ret0
 36c:   08 12 02 5a     copy r18,r26
 370:   37 dd 3f a1     ldo -30(sp),ret1
 374:   53 82 00 20     ldd 10(ret0),rp
 378:   e8 40 f0 00     bve,l (rp),rp
 37c:   53 9b 00 30     ldd 18(ret0),dp
 380:   9f 80 3a bd     cmpb,*= r0,ret0,e4 <blk_rq_map_sg+0xe4>
 384:   08 04 02 5b     copy r4,dp
 388:   52 5c 00 80     ldd 40(r18),ret0
 38c:   c7 fc 44 38     bb,*< ret0,1f,5b0 <blk_rq_map_sg+0x5b0>
 390:   34 19 00 00     ldi 0,r25
 394:   0e 00 10 dc     ldd 0(r16),ret0
 398:   f7 80 04 3f     depdi,* 0,62,1,ret0
 39c:   08 10 02 5a     copy r16,r26
 3a0:   0e 1c 12 c0     std ret0,0(r16)
 3a4:   37 dd 3f a1     ldo -30(sp),ret1
 3a8:   e8 00 a0 00     b,l 3b0 <blk_rq_map_sg+0x3b0>,rp
 3ac:   08 1b 02 44     copy dp,r4
 3b0:   52 34 09 90     ldd 4c8(r17),r20
 3b4:   08 1c 02 50     copy ret0,r16
 3b8:   f7 fe 0a 1c     depdi,z,* f,15,4,r31
 3bc:   23 80 08 01     ldil L%-40000000,ret0
 3c0:   0b 94 0a 1c     add,l r20,ret0,ret0
 3c4:   db 93 1a 6c     extrd,u,* ret0,51,52,r19
 3c8:   0b f3 02 15     and r19,r31,r21
 3cc:   9e bf 23 f0     cmpb,*= r31,r21,5cc <blk_rq_map_sg+0x5cc>
 3d0:   08 04 02 5b     copy r4,dp
 3d4:   db 9c 08 20     extrd,u,* ret0,33,32,ret0
 3d8:   34 1f 03 fe     ldi 1ff,r31
 3dc:   83 9f 83 e0     cmpb,<< r31,ret0,5d4 <blk_rq_map_sg+0x5d4>
 3e0:   2b 60 00 00     addil L%0,dp,r1
 3e4:   50 3f 00 00     ldd 0(r1),r31
 3e8:   0f 9f 00 1c     ldb r31(ret0),ret0
 3ec:   db 9f 0f f8     extrd,s,* ret0,63,8,r31
 3f0:   0e 00 10 d5     ldd 0(r16),r21
 3f4:   f3 9f 10 63     depd,z,* r31,60,61,ret0
 3f8:   2b 60 00 00     addil L%0,dp,r1
 3fc:   50 37 00 00     ldd 0(r1),r23
 400:   0b fc 04 1c     sub ret0,r31,ret0
 404:   f3 9c 10 63     depd,z,* ret0,60,61,ret0
 408:   4a 38 09 88     ldw 4c4(r17),r24
 40c:   0b fc 04 1c     sub ret0,r31,ret0
 410:   f3 9c 10 c6     depd,z,* ret0,57,58,ret0
 414:   37 9f 1a 40     ldo d20(ret0),r31
 418:   37 9c 1a 60     ldo d30(ret0),ret0
 41c:   0f f7 00 df     ldd r23(r31),r31
 420:   0f 97 00 dc     ldd r23(ret0),ret0
 424:   da b6 0b fe     extrd,u,* r21,63,2,r22
 428:   0b 93 04 13     sub r19,ret0,r19
 42c:   f2 b3 10 63     depd,z,* r19,60,61,r21
 430:   0a 75 04 13     sub r21,r19,r19
 434:   0b f3 0a dc     shladd,l r19,3,r31,ret0
 438:   db 9f 0b fe     extrd,u,* ret0,63,2,r31
 43c:   bf e0 20 70     cmpb,*<> r0,r31,47c <blk_rq_map_sg+0x47c>
 440:   d2 94 1b f4     extrw,u r20,31,12,r20
 444:   0e 14 12 90     stw r20,8(r16)
 448:   0b 96 02 5c     or r22,ret0,ret0
 44c:   35 ce 00 02     ldo 1(r14),r14
 450:   0e 1c 12 c0     std ret0,0(r16)
 454:   d9 ce 0f e0     extrd,s,* r14,63,32,r14
 458:   0e 18 12 98     stw r24,c(r16)
 45c:   4a 5f 02 18     ldw 10c(r18),r31
 460:   4a 3c 09 88     ldw 4c4(r17),ret0
 464:   0b 9f 0a 1c     add,l r31,ret0,ret0
 468:   e8 1f 18 ed     b,l e4 <blk_rq_map_sg+0xe4>,r0
 46c:   6a 5c 02 18     stw ret0,10c(r18)
 470:   34 10 00 00     ldi 0,r16
 474:   e8 1f 18 a5     b,l cc <blk_rq_map_sg+0xcc>,r0
 478:   34 0e 00 00     ldi 0,r14
 47c:   03 ff e0 1f     break 1f,1fff
 480:   81 85 81 d0     cmpb,<< r5,r12,570 <blk_rq_map_sg+0x570>
 484:   51 75 00 d0     ldd 68(r11),r21
 488:   9e 40 3d 95     cmpb,*= r0,r18,358 <blk_rq_map_sg+0x358>
 48c:   08 12 02 54     copy r18,r20
 490:   e8 00 00 18     b,l 4a4 <blk_rq_map_sg+0x4a4>,r0
 494:   08 14 02 53     copy r20,r19
 498:   9e 80 3d 65     cmpb,*= r0,r20,350 <blk_rq_map_sg+0x350>
 49c:   08 14 02 53     copy r20,r19
 4a0:   f0 cd 10 84     depd,z,* r13,59,60,r6
 4a4:   08 d5 0a 06     add,l r21,r6,r6
 4a8:   0c d0 10 9f     ldw 8(r6),r31
 4ac:   0a 65 b8 80     cmpclr,>> r5,r19,r0
 4b0:   08 05 02 53     copy r5,r19
 4b4:   08 ff 04 1c     sub r31,r7,ret0
 4b8:   0b 93 b8 80     cmpclr,>> r19,ret0,r0
 4bc:   08 13 02 5c     copy r19,ret0
 4c0:   0b 94 04 14     sub r20,ret0,r20
 4c4:   0b 85 04 05     sub r5,ret0,r5
 4c8:   da 94 0b e0     extrd,u,* r20,63,32,r20
 4cc:   08 fc 0a 1c     add,l ret0,r7,ret0
 4d0:   d8 a5 0b e0     extrd,u,* r5,63,32,r5
 4d4:   8b fc 3f 7d     cmpb,<> ret0,r31,498 <blk_rq_map_sg+0x498>
 4d8:   db 87 0b e0     extrd,u,* ret0,63,32,r7
 4dc:   35 ad 00 02     ldo 1(r13),r13
 4e0:   34 07 00 00     ldi 0,r7
 4e4:   e8 1f 1f 5d     b,l 498 <blk_rq_map_sg+0x498>,r0
 4e8:   d9 ad 0b e0     extrd,u,* r13,63,32,r13
 4ec:   e8 1f 1c 3d     b,l 310 <blk_rq_map_sg+0x310>,r0
 4f0:   50 6a 00 30     ldd 18(r3),r10
 4f4:   52 3c 0a c0     ldd 560(r17),ret0
 4f8:   0b 84 02 44     or r4,ret0,r4
 4fc:   0b bf 0a 1d     add,l r31,ret1,ret1
 500:   0b 9d 02 5d     or ret1,ret0,ret1
 504:   bc 9d 3b cf     cmpb,*<>,n ret1,r4,2f0 <blk_rq_map_sg+0x2f0>
 508:   0d 40 10 dc     ldd 0(r10),ret0
 50c:   e8 1f 1c 4d     b,l 338 <blk_rq_map_sg+0x338>,r0
 510:   0d 56 12 98     stw r22,c(r10)
 514:   4a 5c 00 b8     ldw 5c(r18),ret0
 518:   4a 3f 09 a0     ldw 4d0(r17),r31
 51c:   0b fc 02 13     and ret0,r31,r19
 520:   86 60 37 6f     cmpib,=,n 0,r19,dc <blk_rq_map_sg+0xdc>
 524:   4a 3c 09 88     ldw 4c4(r17),ret0
 528:   0e 18 10 93     ldw c(r16),r19
 52c:   0b 9f 00 1c     andcm r31,ret0,ret0
 530:   37 9c 00 02     ldo 1(ret0),ret0
 534:   0b 93 0a 1f     add,l r19,ret0,r31
 538:   0e 1f 12 98     stw r31,c(r16)
 53c:   4a 5f 02 18     ldw 10c(r18),r31
 540:   0b 9f 0a 1c     add,l r31,ret0,ret0
 544:   e8 1f 17 1d     b,l d8 <blk_rq_map_sg+0xd8>,r0
 548:   6a 5c 02 18     stw ret0,10c(r18)
 54c:   08 12 02 5d     copy r18,ret1
 550:   08 10 02 44     copy r16,r4
 554:   08 0f 02 5f     copy r15,r31
 558:   0d 60 10 cb     ldd 0(r11),r11
 55c:   bd 60 38 5f     cmpb,*<>,n r0,r11,190 <blk_rq_map_sg+0x190>
 560:   49 6d 00 58     ldw 2c(r11),r13
 564:   50 72 00 60     ldd 30(r3),r18
 568:   e8 1f 16 bd     b,l cc <blk_rq_map_sg+0xcc>,r0
 56c:   08 0a 02 50     copy r10,r16
 570:   50 61 00 40     ldd 20(r3),r1
 574:   50 28 00 00     ldd 0(r1),r8
 578:   0d 00 10 1c     ldb 0(r8),ret0
 57c:   8f 80 3e 0d     cmpib,<> 0,ret0,488 <blk_rq_map_sg+0x488>
 580:   50 61 00 50     ldd 28(r3),r1
 584:   08 1b 02 44     copy dp,r4
 588:   50 3a 00 00     ldd 0(r1),r26
 58c:   0c 70 10 dd     ldd 8(r3),ret1
 590:   e8 00 a0 00     b,l 598 <blk_rq_map_sg+0x598>,rp
 594:   70 75 00 70     std r21,38(r3)
 598:   08 04 02 5b     copy r4,dp
 59c:   03 ff e0 1f     break 1f,1fff
 5a0:   34 1c 00 02     ldi 1,ret0
 5a4:   0d 1c 12 00     stb ret0,0(r8)
 5a8:   e8 1f 1d b5     b,l 488 <blk_rq_map_sg+0x488>,r0
 5ac:   50 75 00 70     ldd 38(r3),r21
 5b0:   08 1b 02 44     copy dp,r4
 5b4:   52 3a 09 90     ldd 4c8(r17),r26
 5b8:   37 dd 3f a1     ldo -30(sp),ret1
 5bc:   e8 00 a0 00     b,l 5c4 <blk_rq_map_sg+0x5c4>,rp
 5c0:   4a 38 09 88     ldw 4c4(r17),r24
 5c4:   e8 1f 1b 95     b,l 394 <blk_rq_map_sg+0x394>,r0
 5c8:   08 04 02 5b     copy r4,dp
 5cc:   e8 1f 1c 3d     b,l 3f0 <blk_rq_map_sg+0x3f0>,r0
 5d0:   34 1f 00 00     ldi 0,r31
 5d4:   03 ff e0 1f     break 1f,1fff

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> Commit 3a9ad0b ("PCI: Add pci_bus_addr_t") unconditionally introduced usage of
> 64-bit PCI bus addresses on all 64-bit platforms which broke PA-RISC.
> 
> It turned out that due to enabling the 64-bit addresses, the PCI logic decided
> to use the GMMIO instead of the LMMIO region. This commit simply disables
> registering the GMMIO and thus we fall back to use the LMMIO region as before.
> 
> Reverts commit 45ea2a5fed6dacb9bb0558d8b21eacc1c45d5bb4
> ("PCI: Don't use 64-bit bus addresses on PA-RISC")

Seems to work fine on my A500, RP3410 and RP3440, with 4.3.0-rc1.

> To: linux-parisc@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Cc: Meelis Roos <mroos@linux.ee>
> Cc: stable@vger.kernel.org  # v3.19+
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> 
> diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
> index dceb9dd..a32c1f6 100644
> --- a/drivers/parisc/lba_pci.c
> +++ b/drivers/parisc/lba_pci.c
> @@ -1556,8 +1556,11 @@ lba_driver_probe(struct parisc_device *dev)
>  	if (lba_dev->hba.lmmio_space.flags)
>  		pci_add_resource_offset(&resources, &lba_dev->hba.lmmio_space,
>  					lba_dev->hba.lmmio_space_offset);
> -	if (lba_dev->hba.gmmio_space.flags)
> -		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
> +	if (lba_dev->hba.gmmio_space.flags) {
> +		/* pci_add_resource(&resources, &lba_dev->hba.gmmio_space); */
> +		pr_warn("LBA: Not registering GMMIO space %pR\n",
> +			&lba_dev->hba.gmmio_space);
> +	}
>  
>  	pci_add_resource(&resources, &lba_dev->hba.bus_num);
>  
> diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
> index 944f500..73de4ef 100644
> --- a/drivers/pci/Kconfig
> +++ b/drivers/pci/Kconfig
> @@ -2,7 +2,7 @@
>  # PCI configuration
>  #
>  config PCI_BUS_ADDR_T_64BIT
> -	def_bool y if (ARCH_DMA_ADDR_T_64BIT || (64BIT && !PARISC))
> +	def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
>  	depends on PCI
>  
>  config PCI_MSI
> 

-- 
Meelis Roos (mroos@linux.ee)
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Subject: Re: [PATCH v2 4/9] parisc: allocate sys_membarrier system call
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----- On Sep 7, 2015, at 12:15 PM, Mathieu Desnoyers mathieu.desnoyers@efficios.com wrote:

> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> Tested-by: Helge Deller <deller@gmx.de>
> CC: Andrew Morton <akpm@linux-foundation.org>
> CC: linux-api@vger.kernel.org
> CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
> CC: linux-parisc@vger.kernel.org

Hi,

FYI, sys_membarrier has been pulled into Linux 4.3-rc1. Please
feel free to wire it up on parisc.

Thanks!

Mathieu

> ---
> arch/parisc/include/uapi/asm/unistd.h | 3 ++-
> arch/parisc/kernel/syscall_table.S    | 1 +
> 2 files changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/parisc/include/uapi/asm/unistd.h
> b/arch/parisc/include/uapi/asm/unistd.h
> index 2e639d7..dadcada 100644
> --- a/arch/parisc/include/uapi/asm/unistd.h
> +++ b/arch/parisc/include/uapi/asm/unistd.h
> @@ -358,8 +358,9 @@
> #define __NR_memfd_create	(__NR_Linux + 340)
> #define __NR_bpf		(__NR_Linux + 341)
> #define __NR_execveat		(__NR_Linux + 342)
> +#define __NR_membarrier		(__NR_Linux + 343)
> 
> -#define __NR_Linux_syscalls	(__NR_execveat + 1)
> +#define __NR_Linux_syscalls	(__NR_membarrier + 1)
> 
> 
> #define __IGNORE_select		/* newselect */
> diff --git a/arch/parisc/kernel/syscall_table.S
> b/arch/parisc/kernel/syscall_table.S
> index 8eefb12..4e77991 100644
> --- a/arch/parisc/kernel/syscall_table.S
> +++ b/arch/parisc/kernel/syscall_table.S
> @@ -438,6 +438,7 @@
> 	ENTRY_SAME(memfd_create)	/* 340 */
> 	ENTRY_SAME(bpf)
> 	ENTRY_COMP(execveat)
> +	ENTRY_SAME(membarrier)
> 
> 
> .ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
> --
> 1.9.1

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com

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On 16.09.2015 17:07, Mathieu Desnoyers wrote:
> ----- On Sep 7, 2015, at 12:15 PM, Mathieu Desnoyers mathieu.desnoyers-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org wrote:
> 
>> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
>> Tested-by: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
>> CC: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
>> CC: linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> CC: "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
>> CC: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> 
> Hi,
> 
> FYI, sys_membarrier has been pulled into Linux 4.3-rc1. Please
> feel free to wire it up on parisc.

Thanks for the notice.
I'll include your patch with an upcoming parisc pull-request later in the 4.3 cycle.

Helge


>> ---
>> arch/parisc/include/uapi/asm/unistd.h | 3 ++-
>> arch/parisc/kernel/syscall_table.S    | 1 +
>> 2 files changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/parisc/include/uapi/asm/unistd.h
>> b/arch/parisc/include/uapi/asm/unistd.h
>> index 2e639d7..dadcada 100644
>> --- a/arch/parisc/include/uapi/asm/unistd.h
>> +++ b/arch/parisc/include/uapi/asm/unistd.h
>> @@ -358,8 +358,9 @@
>> #define __NR_memfd_create	(__NR_Linux + 340)
>> #define __NR_bpf		(__NR_Linux + 341)
>> #define __NR_execveat		(__NR_Linux + 342)
>> +#define __NR_membarrier		(__NR_Linux + 343)
>>
>> -#define __NR_Linux_syscalls	(__NR_execveat + 1)
>> +#define __NR_Linux_syscalls	(__NR_membarrier + 1)
>>
>>
>> #define __IGNORE_select		/* newselect */
>> diff --git a/arch/parisc/kernel/syscall_table.S
>> b/arch/parisc/kernel/syscall_table.S
>> index 8eefb12..4e77991 100644
>> --- a/arch/parisc/kernel/syscall_table.S
>> +++ b/arch/parisc/kernel/syscall_table.S
>> @@ -438,6 +438,7 @@
>> 	ENTRY_SAME(memfd_create)	/* 340 */
>> 	ENTRY_SAME(bpf)
>> 	ENTRY_COMP(execveat)
>> +	ENTRY_SAME(membarrier)
>>
>>
>> .ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
>> --
>> 1.9.1
> 


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The implementation of mux_console_device() is very similar to
uart_console_device(). Setting .data field in mux_console then we can
convert to use uart_console_device().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
I don't have this h/w to test, so I'd appreciate if someone can test it.
 drivers/tty/serial/mux.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/tty/serial/mux.c b/drivers/tty/serial/mux.c
index dd26511..8a4be4b 100644
--- a/drivers/tty/serial/mux.c
+++ b/drivers/tty/serial/mux.c
@@ -412,19 +412,14 @@ static int mux_console_setup(struct console *co, char *options)
         return 0;
 }
 
-struct tty_driver *mux_console_device(struct console *co, int *index)
-{
-        *index = co->index;
-	return mux_driver.tty_driver;
-}

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Subject: Re: [PATCH] parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800 and
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On 05.09.2015 23:30, Helge Deller wrote:
> Hi James,
> ...
> I haven't done any performance measurements yet, but your patch looks
> absolutely correct.
> ...

Hello everyone,

I did some timing tests with the various patches for
a) atomic_hash patches:
        https://patchwork.kernel.org/patch/7116811/
b) alignment of LWS locks:
        https://patchwork.kernel.org/patch/7137931/

The testcase I used is basically the following:
- It starts 32 threads.
- We have 16 atomic ints organized in an array.
- The first thread increments NITERS times the first atomic int.
- The second thread decrements NITERS times the first atomic int.
- The third/fourth thread increments/decrements the second atomic int, and so on...
- So, we have 32 threads, of which 16 increments and 16 decrements 16 different atomic ints.
- All threads run in parallel on a 4-way SMP PA8700 rp5470 machine.
- I used the "time" command to measure the timings.
- I did not stopped other services on the machine, but ran each test a few times and the timing results did not show significant variation between each run.
- All timings were done on a vanilla kernel 4.2 with only the mentioned patch applied.

The code is a modified testcase from the libatomic-ops debian package:

AO_t counter_array[16] = { 0, };
#define NITERS 1000000

void * add1sub1_thr(void * id)
{
  int me = (int)(AO_PTRDIFF_T)id;
  AO_t *counter;
  int i;

  counter = &counter_array[me >> 1];
  for (i = 0; i < NITERS; ++i)
    if ((me & 1) != 0) {
      (void)AO_fetch_and_sub1(counter);
    } else {
      (void)AO_fetch_and_add1(counter);
    }
  return 0;
...
run_parallel(32, add1sub1_thr)
...
        

        
The baseline for all results is the timing with a vanilla kernel 4.2:
real    0m13.596s
user    0m18.152s
sys     0m35.752s


The next results are with the atomic_hash (a) patch applied:
For ATOMIC_HASH_SIZE = 4. 
real    0m21.892s 
user    0m27.492s
sys     0m59.704s

For ATOMIC_HASH_SIZE = 64.
real    0m20.604s
user    0m24.832s
sys     0m56.552s


Next I applied the LWS locks patch (b):
XXXXXXXXXXXXXXXXXXXX    LWS_LOCK_ALIGN_BITS = 4
real    0m13.660s
user    0m18.592s
sys     0m35.236s

XXXXXXXXXXXXXXXXXXXX    LWS_LOCK_ALIGN_BITS  = L1_CACHE_SHIFT
real    0m11.992s 
user    0m19.064s
sys     0m28.476s
    
      
    
Then I applied both patches (a and b):
ATOMIC_HASH_SIZE = 64,  LWS_LOCK_ALIGN_BITS = 4
ATOMIC_HASH_SIZE = 64,  LWS_LOCK_ALIGN_BITS = 4
real    0m13.232s
user    0m17.704s
sys     0m33.884s

ATOMIC_HASH_SIZE = 64,  LWS_LOCK_ALIGN_BITS = L1_CACHE_SHIFT
real    0m12.300s
user    0m20.268s
sys     0m28.424s

ATOMIC_HASH_SIZE = 4,   LWS_LOCK_ALIGN_BITS = 4
real    0m13.181s
user    0m17.584s
sys     0m34.800s

ATOMIC_HASH_SIZE = 4,   LWS_LOCK_ALIGN_BITS = L1_CACHE_SHIFT
real    0m11.692s
user    0m18.232s
sys     0m27.072s


In summary I'm astonished about those results.
Especially from patch (a) I would have expected (when applied stand-alone) the same or better performance, because it makes the spinlocks more fine-grained.
But a performance drop of 50% is strange.

Patch (b) stand-alone does significantly increases performance (~20%), and together with patch (a) it even adds a few more percent performance increase on top.

Given the numbers above I currently would suggest to apply both patches (with ATOMIC_HASH_SIZE = 4 and LWS_LOCK_ALIGN_BITS = L1_CACHE_SHIFT).

Thoughts?

Helge
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From - Thu Nov 08 21:37:54 2018
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On 2015-09-22, at 12:20 PM, Helge Deller wrote:

> On 05.09.2015 23:30, Helge Deller wrote:
>> Hi James,
>> ...
>> I haven't done any performance measurements yet, but your patch looks
>> absolutely correct.
>> ...
> 
> Hello everyone,
> 
> I did some timing tests with the various patches for
> a) atomic_hash patches:
>        https://patchwork.kernel.org/patch/7116811/
> b) alignment of LWS locks:
>        https://patchwork.kernel.org/patch/7137931/
> 
> The testcase I used is basically the following:
> - It starts 32 threads.
> - We have 16 atomic ints organized in an array.
> - The first thread increments NITERS times the first atomic int.
> - The second thread decrements NITERS times the first atomic int.
> - The third/fourth thread increments/decrements the second atomic int, and so on...
> - So, we have 32 threads, of which 16 increments and 16 decrements 16 different atomic ints.
> - All threads run in parallel on a 4-way SMP PA8700 rp5470 machine.
> - I used the "time" command to measure the timings.
> - I did not stopped other services on the machine, but ran each test a few times and the timing results did not show significant variation between each run.
> - All timings were done on a vanilla kernel 4.2 with only the mentioned patch applied.
> 
> The code is a modified testcase from the libatomic-ops debian package:
> 
> AO_t counter_array[16] = { 0, };
> #define NITERS 1000000
> 
> void * add1sub1_thr(void * id)
> {
>  int me = (int)(AO_PTRDIFF_T)id;
>  AO_t *counter;
>  int i;
> 
>  counter = &counter_array[me >> 1];
>  for (i = 0; i < NITERS; ++i)
>    if ((me & 1) != 0) {
>      (void)AO_fetch_and_sub1(counter);
>    } else {
>      (void)AO_fetch_and_add1(counter);
>    }
>  return 0;
> ...
> run_parallel(32, add1sub1_thr)
> ...
> 
> 

Does libatomic-ops now use the GCC sync builtins and the LWS calls?

> 
> The baseline for all results is the timing with a vanilla kernel 4.2:
> real    0m13.596s
> user    0m18.152s
> sys     0m35.752s
> 
> 
> The next results are with the atomic_hash (a) patch applied:
> For ATOMIC_HASH_SIZE = 4. 
> real    0m21.892s 
> user    0m27.492s
> sys     0m59.704s
> 
> For ATOMIC_HASH_SIZE = 64.
> real    0m20.604s
> user    0m24.832s
> sys     0m56.552s
> 

I'm not sure why the atomic_hash patch would directly affect performance of this test as I
don't think the patch affects the LWS locks.

I question the the atomic hash changes as the original defines are taken directly from generic code.
Optimally, we want one spinlock per cacheline.  Why do we care about the size of atomic_t?

The above indicate the change is detrimental.

Dave
--
John David Anglin	dave.anglin@bell.net



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Subject: Re: [PATCH] parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800 and
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On 23.09.2015 02:12, John David Anglin wrote:
> On 2015-09-22, at 12:20 PM, Helge Deller wrote:
> 
>> On 05.09.2015 23:30, Helge Deller wrote:
>>> Hi James,
>>> ...
>>> I haven't done any performance measurements yet, but your patch looks
>>> absolutely correct.
>>> ...
>>
>> Hello everyone,
>>
>> I did some timing tests with the various patches for
>> a) atomic_hash patches:
>>        https://patchwork.kernel.org/patch/7116811/
>> b) alignment of LWS locks:
>>        https://patchwork.kernel.org/patch/7137931/
>>
>> The testcase I used is basically the following:
>> - It starts 32 threads.
>> - We have 16 atomic ints organized in an array.
>> - The first thread increments NITERS times the first atomic int.
>> - The second thread decrements NITERS times the first atomic int.
>> - The third/fourth thread increments/decrements the second atomic int, and so on...
>> - So, we have 32 threads, of which 16 increments and 16 decrements 16 different atomic ints.
>> - All threads run in parallel on a 4-way SMP PA8700 rp5470 machine.
>> - I used the "time" command to measure the timings.
>> - I did not stopped other services on the machine, but ran each test a few times and the timing results did not show significant variation between each run.
>> - All timings were done on a vanilla kernel 4.2 with only the mentioned patch applied.
>>
>> The code is a modified testcase from the libatomic-ops debian package:
>>
>> AO_t counter_array[16] = { 0, };
>> #define NITERS 1000000
>>
>> void * add1sub1_thr(void * id)
>> {
>>  int me = (int)(AO_PTRDIFF_T)id;
>>  AO_t *counter;
>>  int i;
>>
>>  counter = &counter_array[me >> 1];
>>  for (i = 0; i < NITERS; ++i)
>>    if ((me & 1) != 0) {
>>      (void)AO_fetch_and_sub1(counter);
>>    } else {
>>      (void)AO_fetch_and_add1(counter);
>>    }
>>  return 0;
>> ...
>> run_parallel(32, add1sub1_thr)
>> ...
>>
>>
> 
> Does libatomic-ops now use the GCC sync builtins and the LWS calls?

Yes, if you apply the patch from https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=785654
on top of the libatomic-ops debian package.
That's what I tested.

>> The baseline for all results is the timing with a vanilla kernel 4.2:
>> real    0m13.596s
>> user    0m18.152s
>> sys     0m35.752s
>>
>>
>> The next results are with the atomic_hash (a) patch applied:
>> For ATOMIC_HASH_SIZE = 4. 
>> real    0m21.892s 
>> user    0m27.492s
>> sys     0m59.704s
>>
>> For ATOMIC_HASH_SIZE = 64.
>> real    0m20.604s
>> user    0m24.832s
>> sys     0m56.552s
>>
> 
> I'm not sure why the atomic_hash patch would directly affect performance of this test as I
> don't think the patch affects the LWS locks.

True, but even so more, the patch should not have slowed down the (unrelated) testcase.
 
> I question the the atomic hash changes as the original defines are taken directly from generic code.
> Optimally, we want one spinlock per cacheline.  Why do we care about the size of atomic_t?

Assume two unrelated code paths which are protected by two different spinlocks (which are of size atomic_t).
So, if the addresses of those spinlocks calculate to be (virtually) on the same cacheline they would block each other.
With James patch the possibility of blocking each other is theoretically lower (esp. if you increase the number of locks). 

> The above indicate the change is detrimental.

Yes, true for patch (a), but not (b).

Helge
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From - Thu Nov 08 21:37:54 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800 and
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On 2015-09-23 3:30 PM, Helge Deller wrote:
> On 23.09.2015 02:12, John David Anglin wrote:
>> On 2015-09-22, at 12:20 PM, Helge Deller wrote:
>>
>>> On 05.09.2015 23:30, Helge Deller wrote:
>>>> Hi James,
>>>> ...
>>>> I haven't done any performance measurements yet, but your patch looks
>>>> absolutely correct.
>>>> ...
>>> Hello everyone,
>>>
>>> I did some timing tests with the various patches for
>>> a) atomic_hash patches:
>>>         https://patchwork.kernel.org/patch/7116811/
>>> b) alignment of LWS locks:
>>>         https://patchwork.kernel.org/patch/7137931/
>>>
>>> The testcase I used is basically the following:
>>> - It starts 32 threads.
>>> - We have 16 atomic ints organized in an array.
>>> - The first thread increments NITERS times the first atomic int.
>>> - The second thread decrements NITERS times the first atomic int.
>>> - The third/fourth thread increments/decrements the second atomic int, and so on...
>>> - So, we have 32 threads, of which 16 increments and 16 decrements 16 different atomic ints.
>>> - All threads run in parallel on a 4-way SMP PA8700 rp5470 machine.
>>> - I used the "time" command to measure the timings.
>>> - I did not stopped other services on the machine, but ran each test a few times and the timing results did not show significant variation between each run.
>>> - All timings were done on a vanilla kernel 4.2 with only the mentioned patch applied.
>>>
>>> The code is a modified testcase from the libatomic-ops debian package:
>>>
>>> AO_t counter_array[16] = { 0, };
>>> #define NITERS 1000000
>>>
>>> void * add1sub1_thr(void * id)
>>> {
>>>   int me = (int)(AO_PTRDIFF_T)id;
>>>   AO_t *counter;
>>>   int i;
>>>
>>>   counter = &counter_array[me >> 1];
>>>   for (i = 0; i < NITERS; ++i)
>>>     if ((me & 1) != 0) {
>>>       (void)AO_fetch_and_sub1(counter);
>>>     } else {
>>>       (void)AO_fetch_and_add1(counter);
>>>     }
>>>   return 0;
>>> ...
>>> run_parallel(32, add1sub1_thr)
>>> ...
>>>
>>>
>> Does libatomic-ops now use the GCC sync builtins and the LWS calls?
> Yes, if you apply the patch from https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=785654
> on top of the libatomic-ops debian package.
> That's what I tested.
>
>>> The baseline for all results is the timing with a vanilla kernel 4.2:
>>> real    0m13.596s
>>> user    0m18.152s
>>> sys     0m35.752s
>>>
>>>
>>> The next results are with the atomic_hash (a) patch applied:
>>> For ATOMIC_HASH_SIZE = 4.
>>> real    0m21.892s
>>> user    0m27.492s
>>> sys     0m59.704s
>>>
>>> For ATOMIC_HASH_SIZE = 64.
>>> real    0m20.604s
>>> user    0m24.832s
>>> sys     0m56.552s
>>>
>> I'm not sure why the atomic_hash patch would directly affect performance of this test as I
>> don't think the patch affects the LWS locks.
> True, but even so more, the patch should not have slowed down the (unrelated) testcase.
>   
>> I question the the atomic hash changes as the original defines are taken directly from generic code.
>> Optimally, we want one spinlock per cacheline.  Why do we care about the size of atomic_t?
> Assume two unrelated code paths which are protected by two different spinlocks (which are of size atomic_t).
> So, if the addresses of those spinlocks calculate to be (virtually) on the same cacheline they would block each other.
> With James patch the possibility of blocking each other is theoretically lower (esp. if you increase the number of locks).

I don't believe spinlocks have size atomic_t.  atomic_t is a different 
struct.

The arch_spinlock_t type is defined in spinlock_types.h.  It's size is 4 
on PA20 and 16 otherwise.
This is used for raw_lock field in declaration of the raw_spinlock_t.  
This is combined with some other
fields to create the spinlock_t type.  Through some tricky manipulation 
of the ldcw lock address field,
we avoid specifying any specific alignment for lock.  As far a I can 
tell, spinlock_t types can end up anywhere.

The set of set of locks in  __atomic_hash is used exclusively for 
operations on atomic_ts.  On PA20,
all are locks on PA8800/PA8900 are on two lines even with a size of 64.  
I think we can be a bit
more liberal with storage allocation.

Think ATOMIC_HASH_SIZE should be 
N*L1_CACHE_BYTES/sizeof(arch_spinlock_t) and we should hash
to one lock per line.  Another alternative to compare is hashing to 16 
byte increments.

Dave

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Subject: Re: [PATCH] parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800
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On Tue, 2015-09-22 at 20:12 -0400, John David Anglin wrote:
> I question the the atomic hash changes as the original defines are
> taken directly from generic code.

It's about scaling.  The fewer locks, the more contention in a hash lock
system.  The interesting question is where does the line tip over so
that we see less speed up for more locks.

> Optimally, we want one spinlock per cacheline.  Why do we care about
> the size of atomic_t?

OK, so I think we're not using the word 'line size' in the same way.
When Linux says 'line size' it generally means the cache ownership line
size: the minimum block the inter cpu coherence operates on.  Most of
the architectural evidence for PA systems suggests that this is 16  We
should be able to get this definitively: it's however many lower bits of
a virtual address the LCI instruction truncates.  128 seems to be the
cache burst fill size (the number of bytes that will be pulled into the
cache by a usual operation touching any byte in the area).  For
streaming operations, the burst fill size is what we want to use, but
for coherence operations it's the ownership line size.  The reason is
that different CPUs can own adjacent lines uncontended, so one spinlock
per this region is optimal.

The disadvantage to padding things out to the cache burst fill size is
that we blow the cache footprint: data is too far apart and we use far
more cache than we should meaning the cache thrashes much sooner as you
load up the CPU.  On SMP systems, Linux uses SMP_CACHE_BYTES ==
L1_CACHE_BYTES for padding on tons of critical structures if it's too
big we'll waste a lot of cache footprint for no gain.

James


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Subject: Re: [PATCH] parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800 and
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On 2015-09-24 10:20 AM, James Bottomley wrote:
> On Tue, 2015-09-22 at 20:12 -0400, John David Anglin wrote:
>> I question the the atomic hash changes as the original defines are
>> taken directly from generic code.
> It's about scaling.  The fewer locks, the more contention in a hash lock
> system.  The interesting question is where does the line tip over so
> that we see less speed up for more locks.
>
>> Optimally, we want one spinlock per cacheline.  Why do we care about
>> the size of atomic_t?
> OK, so I think we're not using the word 'line size' in the same way.
> When Linux says 'line size' it generally means the cache ownership line
> size: the minimum block the inter cpu coherence operates on.  Most of
> the architectural evidence for PA systems suggests that this is 16  We
> should be able to get this definitively: it's however many lower bits of
> a virtual address the LCI instruction truncates.  128 seems to be the
> cache burst fill size (the number of bytes that will be pulled into the
> cache by a usual operation touching any byte in the area).  For
> streaming operations, the burst fill size is what we want to use, but
> for coherence operations it's the ownership line size.  The reason is
> that different CPUs can own adjacent lines uncontended, so one spinlock
> per this region is optimal.
>
> The disadvantage to padding things out to the cache burst fill size is
> that we blow the cache footprint: data is too far apart and we use far
> more cache than we should meaning the cache thrashes much sooner as you
> load up the CPU.  On SMP systems, Linux uses SMP_CACHE_BYTES ==
> L1_CACHE_BYTES for padding on tons of critical structures if it's too
> big we'll waste a lot of cache footprint for no gain.
It looks to me like the LCI instruction must zero bits rather than 
truncate as drivers
(e.g., sba_iommu.c) drop the least significant 12 bits (ci >> 
PAGE_SHIFT).  I think we
should do the LCI test.  I had been assuming that the two lengths would 
be the same.

Dave

-- 
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Subject: Re: [PATCH] parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800
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On Thu, 2015-09-24 at 12:39 -0400, John David Anglin wrote:
> On 2015-09-24 10:20 AM, James Bottomley wrote:
> > On Tue, 2015-09-22 at 20:12 -0400, John David Anglin wrote:
> >> I question the the atomic hash changes as the original defines are
> >> taken directly from generic code.
> > It's about scaling.  The fewer locks, the more contention in a hash lock
> > system.  The interesting question is where does the line tip over so
> > that we see less speed up for more locks.
> >
> >> Optimally, we want one spinlock per cacheline.  Why do we care about
> >> the size of atomic_t?
> > OK, so I think we're not using the word 'line size' in the same way.
> > When Linux says 'line size' it generally means the cache ownership line
> > size: the minimum block the inter cpu coherence operates on.  Most of
> > the architectural evidence for PA systems suggests that this is 16  We
> > should be able to get this definitively: it's however many lower bits of
> > a virtual address the LCI instruction truncates.  128 seems to be the
> > cache burst fill size (the number of bytes that will be pulled into the
> > cache by a usual operation touching any byte in the area).  For
> > streaming operations, the burst fill size is what we want to use, but
> > for coherence operations it's the ownership line size.  The reason is
> > that different CPUs can own adjacent lines uncontended, so one spinlock
> > per this region is optimal.
> >
> > The disadvantage to padding things out to the cache burst fill size is
> > that we blow the cache footprint: data is too far apart and we use far
> > more cache than we should meaning the cache thrashes much sooner as you
> > load up the CPU.  On SMP systems, Linux uses SMP_CACHE_BYTES ==
> > L1_CACHE_BYTES for padding on tons of critical structures if it's too
> > big we'll waste a lot of cache footprint for no gain.
> It looks to me like the LCI instruction must zero bits rather than 
> truncate as drivers
> (e.g., sba_iommu.c) drop the least significant 12 bits (ci >> 
> PAGE_SHIFT).  I think we
> should do the LCI test.  I had been assuming that the two lengths would 
> be the same.

It's a backwards compatibility problem: You get to fix the cache
ownership size once per incompatible architecture.  Once PA produced 64
bit chips was the last opportunity to do this because an older 64 bit
kernel (for PA and Linux) must work reasonably well on newer processors.
This means that if you increase the actual ownership size and the older
kernel suddenly starts thrashing because of SMP cache interference,
everyone blames you and says your new chips are rubbish (this did
actually happen to Intel once, if I remember correctly).  That's why
it's usually avoided.

James


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Subject: Re: [PATCH] parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800 and PA8900 CPUs
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On 2015-09-24, at 12:57 PM, James Bottomley wrote:

> On Thu, 2015-09-24 at 12:39 -0400, John David Anglin wrote:
>> On 2015-09-24 10:20 AM, James Bottomley wrote:
>>> On Tue, 2015-09-22 at 20:12 -0400, John David Anglin wrote:
>>>> I question the the atomic hash changes as the original defines are
>>>> taken directly from generic code.
>>> It's about scaling.  The fewer locks, the more contention in a hash lock
>>> system.  The interesting question is where does the line tip over so
>>> that we see less speed up for more locks.
>>> 
>>>> Optimally, we want one spinlock per cacheline.  Why do we care about
>>>> the size of atomic_t?
>>> OK, so I think we're not using the word 'line size' in the same way.
>>> When Linux says 'line size' it generally means the cache ownership line
>>> size: the minimum block the inter cpu coherence operates on.  Most of
>>> the architectural evidence for PA systems suggests that this is 16  We
>>> should be able to get this definitively: it's however many lower bits of
>>> a virtual address the LCI instruction truncates.  128 seems to be the
>>> cache burst fill size (the number of bytes that will be pulled into the
>>> cache by a usual operation touching any byte in the area).  For
>>> streaming operations, the burst fill size is what we want to use, but
>>> for coherence operations it's the ownership line size.  The reason is
>>> that different CPUs can own adjacent lines uncontended, so one spinlock
>>> per this region is optimal.
>>> 
>>> The disadvantage to padding things out to the cache burst fill size is
>>> that we blow the cache footprint: data is too far apart and we use far
>>> more cache than we should meaning the cache thrashes much sooner as you
>>> load up the CPU.  On SMP systems, Linux uses SMP_CACHE_BYTES ==
>>> L1_CACHE_BYTES for padding on tons of critical structures if it's too
>>> big we'll waste a lot of cache footprint for no gain.
>> It looks to me like the LCI instruction must zero bits rather than 
>> truncate as drivers
>> (e.g., sba_iommu.c) drop the least significant 12 bits (ci >> 
>> PAGE_SHIFT).  I think we
>> should do the LCI test.  I had been assuming that the two lengths would 
>> be the same.
> 
> It's a backwards compatibility problem: You get to fix the cache
> ownership size once per incompatible architecture.  Once PA produced 64
> bit chips was the last opportunity to do this because an older 64 bit
> kernel (for PA and Linux) must work reasonably well on newer processors.
> This means that if you increase the actual ownership size and the older
> kernel suddenly starts thrashing because of SMP cache interference,
> everyone blames you and says your new chips are rubbish (this did
> actually happen to Intel once, if I remember correctly).  That's why
> it's usually avoided.

The division by L1_CACHE_BYTES in ATOMIC_HASH simply reflects the alignment of
atomic_t types.  We want a hash value that's not always zero.

On systems with hardware atomic operations, atomic variables need to be on separate
cache lines to minimize contention.  Thus, the L1_CACHE_BYTES alignment.

Our atomic_t types are guarded by ldcw locks.  So, they are not really subject to contention.
You could be correct that L1_CACHE_BYTES could be reduced to 16 (i.e., maximum alignment
needed for any type on parisc) provided it isn't used somewhere where we need the actual L1
cache line size as returned by the PDC.

When this started, I was pushing to see if placing our ldcw locks on different lines
helped performance.  Possibly, the number could be increased as well.  On PA20, we currently
align __atomic_hash to __lock_aligned (16 bytes).  So, all four locks are on the same line.

Dave

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From - Thu Nov 08 21:37:54 2018
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Subject: Re: [PATCH] parisc: adjust L1_CACHE_BYTES to 128 bytes on PA8800 and
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On 2015-09-25 8:20 AM, John David Anglin wrote:
> Our atomic_t types are guarded by ldcw locks.  So, they are not really subject to contention.
> You could be correct that L1_CACHE_BYTES could be reduced to 16 (i.e., maximum alignment
> needed for any type on parisc) provided it isn't used somewhere where we need the actual L1
> cache line size as returned by the PDC.
Digging through various documentation, I now believe that L1_CACHE_BYTES 
is 16 bytes on ALL PA-RISC
processors.  We are getting confused by the L2 length reported by the 
PDC.  The PA-8800 is essentially
two PA-8700s integrated on the same die.

See page 10 in this document:
https://parisc.wiki.kernel.org/images-parisc/e/e9/PA-8700wp.pdf

It shows the PA-8700 L1 design.

Dave

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The attached change reduces L1_CACHE_BYTES from 32 on PA1.1 and 64 on =
PA2.0 to 16.

This is based on examination of the L1 cache design for the PA-8700 =
processor where it can
be seen the processor loads two double words per cycle.  This line =
length is consistent with the
original alignment requirement for the ldcw instruction.

Thus, we need to distinguish between the L1 and L2 (SMP) cache line =
lengths.

The attached change bumps SMP_CACHE_BYTES to 128 bytes as this is the =
line length used
on PA-8800 and PA-8900 processors.  This increases the overall kernel =
size somewhat but seems
logically correct.

I left ARCH_DMA_MINALIGN at L1_CACHE_BYTES as that's the define most =
architectures use.

There are a few uses of L1_CACHE_BYTES in drivers/parisc.  This is the =
code that's most likely
to break from the change.

I have lightly tested the change on c8000 running 4.2.1+.

Signed-off-by: John David Anglin <dave.anglin@bell.net>


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diff --git a/arch/parisc/include/asm/cache.h =
b/arch/parisc/include/asm/cache.h
index 47f11c7..e92a355 100644
--- a/arch/parisc/include/asm/cache.h
+++ b/arch/parisc/include/asm/cache.h
@@ -7,24 +7,23 @@
=20
=20
 /*
- * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
- * 32-byte cachelines.  The default configuration is not for SMP =
anyway,
+ * PA 2.0 processors have 64 and 128-byte L2 cachelines; PA 1.1 =
processors
+ * have 32-byte cachelines.  The default configuration is not for SMP =
anyway,
  * so if you're building for SMP, you should select the appropriate
  * processor type.  There is a potential livelock danger when running
  * a machine with this value set too small, but it's more probable =
you'll
  * just ruin performance.
  */
-#ifdef CONFIG_PA20
-#define L1_CACHE_BYTES 64
-#define L1_CACHE_SHIFT 6
-#else
-#define L1_CACHE_BYTES 32
-#define L1_CACHE_SHIFT 5
-#endif
+#define L1_CACHE_BYTES 16
+#define L1_CACHE_SHIFT 4
=20
 #ifndef __ASSEMBLY__
=20
-#define SMP_CACHE_BYTES L1_CACHE_BYTES
+#ifdef CONFIG_PA20
+#define SMP_CACHE_BYTES (8 * L1_CACHE_BYTES)
+#else
+#define SMP_CACHE_BYTES (2 * L1_CACHE_BYTES)
+#endif
=20
 #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
=20

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From - Thu Nov 08 21:37:54 2018
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Subject: [PATCH 4.2 099/134] PCI,parisc: Enable 64-bit bus addresses on PA-RISC
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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	Bjorn Helgaas <bhelgaas@google.com>,
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4.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Helge Deller <deller@gmx.de>

commit e02a653e15d8d32e9e768fd99a3271aafe5c5d77 upstream.

Commit 3a9ad0b ("PCI: Add pci_bus_addr_t") unconditionally introduced usage of
64-bit PCI bus addresses on all 64-bit platforms which broke PA-RISC.

It turned out that due to enabling the 64-bit addresses, the PCI logic decided
to use the GMMIO instead of the LMMIO region. This commit simply disables
registering the GMMIO and thus we fall back to use the LMMIO region as before.

Reverts commit 45ea2a5fed6dacb9bb0558d8b21eacc1c45d5bb4
("PCI: Don't use 64-bit bus addresses on PA-RISC")

To: linux-parisc@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Meelis Roos <mroos@linux.ee>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/parisc/lba_pci.c |    7 +++++--
 drivers/pci/Kconfig      |    2 +-
 2 files changed, 6 insertions(+), 3 deletions(-)

--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1556,8 +1556,11 @@ lba_driver_probe(struct parisc_device *d
 	if (lba_dev->hba.lmmio_space.flags)
 		pci_add_resource_offset(&resources, &lba_dev->hba.lmmio_space,
 					lba_dev->hba.lmmio_space_offset);
-	if (lba_dev->hba.gmmio_space.flags)
-		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
+	if (lba_dev->hba.gmmio_space.flags) {
+		/* pci_add_resource(&resources, &lba_dev->hba.gmmio_space); */
+		pr_warn("LBA: Not registering GMMIO space %pR\n",
+			&lba_dev->hba.gmmio_space);
+	}
 
 	pci_add_resource(&resources, &lba_dev->hba.bus_num);
 
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -2,7 +2,7 @@
 # PCI configuration
 #
 config PCI_BUS_ADDR_T_64BIT
-	def_bool y if (ARCH_DMA_ADDR_T_64BIT || (64BIT && !PARISC))
+	def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
 	depends on PCI
 
 config PCI_MSI



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	Bjorn Helgaas <bhelgaas@google.com>,
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4.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Helge Deller <deller@gmx.de>

commit e02a653e15d8d32e9e768fd99a3271aafe5c5d77 upstream.

Commit 3a9ad0b ("PCI: Add pci_bus_addr_t") unconditionally introduced usage of
64-bit PCI bus addresses on all 64-bit platforms which broke PA-RISC.

It turned out that due to enabling the 64-bit addresses, the PCI logic decided
to use the GMMIO instead of the LMMIO region. This commit simply disables
registering the GMMIO and thus we fall back to use the LMMIO region as before.

Reverts commit 45ea2a5fed6dacb9bb0558d8b21eacc1c45d5bb4
("PCI: Don't use 64-bit bus addresses on PA-RISC")

To: linux-parisc@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Meelis Roos <mroos@linux.ee>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/parisc/lba_pci.c |    7 +++++--
 drivers/pci/Kconfig      |    2 +-
 2 files changed, 6 insertions(+), 3 deletions(-)

--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1556,8 +1556,11 @@ lba_driver_probe(struct parisc_device *d
 	if (lba_dev->hba.lmmio_space.flags)
 		pci_add_resource_offset(&resources, &lba_dev->hba.lmmio_space,
 					lba_dev->hba.lmmio_space_offset);
-	if (lba_dev->hba.gmmio_space.flags)
-		pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
+	if (lba_dev->hba.gmmio_space.flags) {
+		/* pci_add_resource(&resources, &lba_dev->hba.gmmio_space); */
+		pr_warn("LBA: Not registering GMMIO space %pR\n",
+			&lba_dev->hba.gmmio_space);
+	}
 
 	pci_add_resource(&resources, &lba_dev->hba.bus_num);
 
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -2,7 +2,7 @@
 # PCI configuration
 #
 config PCI_BUS_ADDR_T_64BIT
-	def_bool y if (ARCH_DMA_ADDR_T_64BIT || (64BIT && !PARISC))
+	def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
 	depends on PCI
 
 config PCI_MSI


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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH v2][RFC] parisc: Change L1_CACHE_BYTES to 16
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On 2015-09-26, at 11:38 AM, John David Anglin wrote:

> The attached change reduces L1_CACHE_BYTES from 32 on PA1.1 and 64 on =
PA2.0 to 16.
>=20
> This is based on examination of the L1 cache design for the PA-8700 =
processor where it can
> be seen the processor loads two double words per cycle.  This line =
length is consistent with the
> original alignment requirement for the ldcw instruction.
>=20
> Thus, we need to distinguish between the L1 and L2 (SMP) cache line =
lengths.
>=20
> The attached change bumps SMP_CACHE_BYTES to 128 bytes as this is the =
line length used
> on PA-8800 and PA-8900 processors.  This increases the overall kernel =
size somewhat but seems
> logically correct.


Slight tweak to previous.  This version only bumps SMP_CACHE_BYTES when =
CONFIG_SMP
is defined.

Signed-off-by: John David Anglin <dave.anglin@bell.net>



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diff --git a/arch/parisc/include/asm/cache.h =
b/arch/parisc/include/asm/cache.h
index 47f11c7..cf11dd4 100644
--- a/arch/parisc/include/asm/cache.h
+++ b/arch/parisc/include/asm/cache.h
@@ -7,24 +7,27 @@
=20
=20
 /*
- * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
- * 32-byte cachelines.  The default configuration is not for SMP =
anyway,
+ * PA 2.0 processors have 64 and 128-byte L2 cachelines; PA 1.1 =
processors
+ * have 32-byte cachelines.  The default configuration is not for SMP =
anyway,
  * so if you're building for SMP, you should select the appropriate
  * processor type.  There is a potential livelock danger when running
  * a machine with this value set too small, but it's more probable =
you'll
  * just ruin performance.
  */
-#ifdef CONFIG_PA20
-#define L1_CACHE_BYTES 64
-#define L1_CACHE_SHIFT 6
-#else
-#define L1_CACHE_BYTES 32
-#define L1_CACHE_SHIFT 5
-#endif
+#define L1_CACHE_BYTES 16
+#define L1_CACHE_SHIFT 4
=20
 #ifndef __ASSEMBLY__
=20
+#ifdef CONFIG_SMP
+#ifdef CONFIG_PA20
+#define SMP_CACHE_BYTES (8 * L1_CACHE_BYTES)
+#else
+#define SMP_CACHE_BYTES (2 * L1_CACHE_BYTES)
+#endif
+#else
 #define SMP_CACHE_BYTES L1_CACHE_BYTES
+#endif
=20
 #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
=20

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On Sun, 2015-09-27 at 12:07 -0400, John David Anglin wrote:
> On 2015-09-26, at 11:38 AM, John David Anglin wrote:
> 
> > The attached change reduces L1_CACHE_BYTES from 32 on PA1.1 and 64 on PA2.0 to 16.
> > 
> > This is based on examination of the L1 cache design for the PA-8700 processor where it can
> > be seen the processor loads two double words per cycle.  This line length is consistent with the
> > original alignment requirement for the ldcw instruction.
> > 
> > Thus, we need to distinguish between the L1 and L2 (SMP) cache line lengths.
> > 
> > The attached change bumps SMP_CACHE_BYTES to 128 bytes as this is the line length used
> > on PA-8800 and PA-8900 processors.  This increases the overall kernel size somewhat but seems
> > logically correct.
> 
> 
> Slight tweak to previous.  This version only bumps SMP_CACHE_BYTES when CONFIG_SMP
> is defined.

What makes you think we need SMP_CACHE_BYTES to be different from
L1_CACHE_BYTES?  No other architecture does this.  The theory that gives
us two defines was that some SMP systems would arbitrate for memory at
geater than cache line offsets but, in practise, none does because
that's the level at which the cross CPU memory ownership model works
anyway.

James


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On 2015-09-22, at 12:20 PM, Helge Deller wrote:

> On 05.09.2015 23:30, Helge Deller wrote:
>> Hi James,
>> ...
>> I haven't done any performance measurements yet, but your patch looks
>> absolutely correct.
>> ...
>=20
> Hello everyone,
>=20
> I did some timing tests with the various patches for
> a) atomic_hash patches:
>        https://patchwork.kernel.org/patch/7116811/
> b) alignment of LWS locks:
>        https://patchwork.kernel.org/patch/7137931/
>=20
> The testcase I used is basically the following:
> - It starts 32 threads.
> - We have 16 atomic ints organized in an array.
> - The first thread increments NITERS times the first atomic int.
> - The second thread decrements NITERS times the first atomic int.
> - The third/fourth thread increments/decrements the second atomic int, =
and so on...
> - So, we have 32 threads, of which 16 increments and 16 decrements 16 =
different atomic ints.
> - All threads run in parallel on a 4-way SMP PA8700 rp5470 machine.
> - I used the "time" command to measure the timings.
> - I did not stopped other services on the machine, but ran each test a =
few times and the timing results did not show significant variation =
between each run.
> - All timings were done on a vanilla kernel 4.2 with only the =
mentioned patch applied.
>=20
> The code is a modified testcase from the libatomic-ops debian package:
>=20
> AO_t counter_array[16] =3D { 0, };
> #define NITERS 1000000
>=20
> void * add1sub1_thr(void * id)
> {
>  int me =3D (int)(AO_PTRDIFF_T)id;
>  AO_t *counter;
>  int i;
>=20
>  counter =3D &counter_array[me >> 1];
>  for (i =3D 0; i < NITERS; ++i)
>    if ((me & 1) !=3D 0) {
>      (void)AO_fetch_and_sub1(counter);
>    } else {
>      (void)AO_fetch_and_add1(counter);
>    }
>  return 0;
> ...
> run_parallel(32, add1sub1_thr)
> ...
>=20
>=20
>=20
> The baseline for all results is the timing with a vanilla kernel 4.2:
> real    0m13.596s
> user    0m18.152s
> sys     0m35.752s
>=20
>=20
> The next results are with the atomic_hash (a) patch applied:
> For ATOMIC_HASH_SIZE =3D 4.=20
> real    0m21.892s=20
> user    0m27.492s
> sys     0m59.704s
>=20
> For ATOMIC_HASH_SIZE =3D 64.
> real    0m20.604s
> user    0m24.832s
> sys     0m56.552s
>=20
>=20
> Next I applied the LWS locks patch (b):
> XXXXXXXXXXXXXXXXXXXX    LWS_LOCK_ALIGN_BITS =3D 4
> real    0m13.660s
> user    0m18.592s
> sys     0m35.236s
>=20
> XXXXXXXXXXXXXXXXXXXX    LWS_LOCK_ALIGN_BITS  =3D L1_CACHE_SHIFT
> real    0m11.992s=20
> user    0m19.064s
> sys     0m28.476s
>=20
>=20
>=20
> Then I applied both patches (a and b):
> ATOMIC_HASH_SIZE =3D 64,  LWS_LOCK_ALIGN_BITS =3D 4
> ATOMIC_HASH_SIZE =3D 64,  LWS_LOCK_ALIGN_BITS =3D 4
> real    0m13.232s
> user    0m17.704s
> sys     0m33.884s
>=20
> ATOMIC_HASH_SIZE =3D 64,  LWS_LOCK_ALIGN_BITS =3D L1_CACHE_SHIFT
> real    0m12.300s
> user    0m20.268s
> sys     0m28.424s
>=20
> ATOMIC_HASH_SIZE =3D 4,   LWS_LOCK_ALIGN_BITS =3D 4
> real    0m13.181s
> user    0m17.584s
> sys     0m34.800s
>=20
> ATOMIC_HASH_SIZE =3D 4,   LWS_LOCK_ALIGN_BITS =3D L1_CACHE_SHIFT
> real    0m11.692s
> user    0m18.232s
> sys     0m27.072s
>=20
>=20
> In summary I'm astonished about those results.
> Especially from patch (a) I would have expected (when applied =
stand-alone) the same or better performance, because it makes the =
spinlocks more fine-grained.
> But a performance drop of 50% is strange.
>=20
> Patch (b) stand-alone does significantly increases performance (~20%), =
and together with patch (a) it even adds a few more percent performance =
increase on top.
>=20
> Given the numbers above I currently would suggest to apply both =
patches (with ATOMIC_HASH_SIZE =3D 4 and LWS_LOCK_ALIGN_BITS =3D =
L1_CACHE_SHIFT).
>=20
> Thoughts?


Hi Helge,

Attached is a revised patch "a" to try to improve performance of =
atomic_t variables.  If you get a chance, could
you see how it performs.

As noted in previous mail, I believe the L1 cache size is 16 bytes for =
all PA-RISC systems.  This change pads
the arch_spinlock_t type on PA2.0 to 16 bytes, so it is the same as =
PA1.x.  As a result, the spinlocks in
__atomic_hash are now on separate L1 cache lines.

I also bumped up ATOMIC_HASH_SIZE to give us 64 locks and changed =
ATOMIC_HASH_SIZE to divide
by SMP_CACHE_BYTES.  SMP_CACHE_BYTES should be maximum alignment used by =
kernel.  This is an
attempt to ensure the hash indexes are evenly distributed.

Testing v4.2.1+ on rp3440 with gcc build.

Signed-off-by: John David Anglin <dave.anglin@bell.net>



--Apple-Mail-33--939912884
Content-Disposition: attachment;
	filename=atomic-spin.d.txt
Content-Type: text/plain;
	name="atomic-spin.d.txt"
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diff --git a/arch/parisc/include/asm/atomic.h =
b/arch/parisc/include/asm/atomic.h
index 226f8ca9..a5c6de5 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -25,8 +25,8 @@
  * Hash function to index into a different SPINLOCK.
  * Since "a" is usually an address, use one spinlock per cacheline.
  */
-#  define ATOMIC_HASH_SIZE 4
-#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) =
(a))/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
+#  define ATOMIC_HASH_SIZE 64
+#  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) =
(a))/SMP_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
=20
 extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
=20
diff --git a/arch/parisc/include/asm/spinlock_types.h =
b/arch/parisc/include/asm/spinlock_types.h
index 8c373aa..8c54f5e 100644
--- a/arch/parisc/include/asm/spinlock_types.h
+++ b/arch/parisc/include/asm/spinlock_types.h
@@ -4,7 +4,8 @@
 typedef struct {
 #ifdef CONFIG_PA20
 	volatile unsigned int slock;
-# define __ARCH_SPIN_LOCK_UNLOCKED { 1 }
+	volatile unsigned int pad[3];
+# define __ARCH_SPIN_LOCK_UNLOCKED { 1, { 1, 1, 1 } }
 #else
 	volatile unsigned int lock[4];
 # define __ARCH_SPIN_LOCK_UNLOCKED	{ { 1, 1, 1, 1 } }

--Apple-Mail-33--939912884
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On 2015-09-27, at 12:17 PM, James Bottomley wrote:

> What makes you think we need SMP_CACHE_BYTES to be different from
> L1_CACHE_BYTES?  No other architecture does this.  The theory that gives
> us two defines was that some SMP systems would arbitrate for memory at
> geater than cache line offsets but, in practise, none does because
> that's the level at which the cross CPU memory ownership model works
> anyway.

I was just keeping the values we had before.  Changing to the new L1_CACHE_BYTES
value probably needs testing.

Dave
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Hi Dave,

On 27.09.2015 18:27, John David Anglin wrote:
> On 2015-09-22, at 12:20 PM, Helge Deller wrote:
>> The baseline for all results is the timing with a vanilla kernel 4.2:
>> real    0m13.596s
>> user    0m18.152s
>> sys     0m35.752s
>>
>>
>> The next results are with the atomic_hash (a) patch applied:
>> For ATOMIC_HASH_SIZE = 4. 
>> real    0m21.892s 
>> user    0m27.492s
>> sys     0m59.704s
>>
>> For ATOMIC_HASH_SIZE = 64.
>> real    0m20.604s
>> user    0m24.832s
>> sys     0m56.552s
>>
> Attached is a revised patch "a" to try to improve performance of atomic_t variables.  If you get a chance, could
> you see how it performs.

here are the numbers for your revised "a" patch (on top of vanilla kernel 4.2): 

real    0m20.040s
user    0m22.876s
sys     0m56.724s
(Variations can be around +- 0.5 seconds)

If you want to test yourself:
The testcase executable is on sibaris: /home/var_lib_sbuild_build/libatomic/libatomic-ops-7.4.2/test_atomic

Helge
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On 2015-09-28 11:57 AM, Helge Deller wrote:
> Hi Dave,
>
> On 27.09.2015 18:27, John David Anglin wrote:
>> On 2015-09-22, at 12:20 PM, Helge Deller wrote:
>>> The baseline for all results is the timing with a vanilla kernel 4.2:
>>> real    0m13.596s
>>> user    0m18.152s
>>> sys     0m35.752s
>>>
>>>
>>> The next results are with the atomic_hash (a) patch applied:
>>> For ATOMIC_HASH_SIZE = 4.
>>> real    0m21.892s
>>> user    0m27.492s
>>> sys     0m59.704s
>>>
>>> For ATOMIC_HASH_SIZE = 64.
>>> real    0m20.604s
>>> user    0m24.832s
>>> sys     0m56.552s
>>>
>> Attached is a revised patch "a" to try to improve performance of atomic_t variables.  If you get a chance, could
>> you see how it performs.
> here are the numbers for your revised "a" patch (on top of vanilla kernel 4.2):
>
> real    0m20.040s
> user    0m22.876s
> sys     0m56.724s
> (Variations can be around +- 0.5 seconds)
>
> If you want to test yourself:
> The testcase executable is on sibaris: /home/var_lib_sbuild_build/libatomic/libatomic-ops-7.4.2/test_atomic
It doesn't seem like the padding has much difference.  I had hoped for 
better although
the test probably doesn't test atomic_t variables.  The regression from 
the the vanilla
kernel is a problem.

Dave

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3.16.7-ckt18 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Helge Deller <deller@gmx.de>

commit b1b4e435e4ef7de77f07bf2a42c8380b960c2d44 upstream.

When detecting a serial port on newer PA-RISC machines (with iosapic) we have a
long way to go to find the right IRQ line, registering it, then registering the
serial port and the irq handler for the serial port. During this phase spurious
interrupts for the serial port may happen which then crashes the kernel because
the action handler might not have been set up yet.

So, basically it's a race condition between the serial port hardware and the
CPU which sets up the necessary fields in the irq sructs. The main reason for
this race is, that we unmask the serial port irqs too early without having set
up everything properly before (which isn't easily possible because we need the
IRQ number to register the serial ports).

This patch is a work-around for this problem. It adds checks to the CPU irq
handler to verify if the IRQ action field has been initialized already. If not,
we just skip this interrupt (which isn't critical for a serial port at bootup).
The real fix would probably involve rewriting all PA-RISC specific IRQ code
(for CPU, IOSAPIC, GSC and EISA) to use IRQ domains with proper parenting of
the irq chips and proper irq enabling along this line.

This bug has been in the PA-RISC port since the beginning, but the crashes
happened very rarely with currently used hardware.  But on the latest machine
which I bought (a C8000 workstation), which uses the fastest CPUs (4 x PA8900,
1GHz) and which has the largest possible L1 cache size (64MB each), the kernel
crashed at every boot because of this race. So, without this patch the machine
would currently be unuseable.

For the record, here is the flow logic:
1. serial_init_chip() in 8250_gsc.c calls iosapic_serial_irq().
2. iosapic_serial_irq() calls txn_alloc_irq() to find the irq.
3. iosapic_serial_irq() calls cpu_claim_irq() to register the CPU irq
4. cpu_claim_irq() unmasks the CPU irq (which it shouldn't!)
5. serial_init_chip() then registers the 8250 port.
Problems:
- In step 4 the CPU irq shouldn't have been registered yet, but after step 5
- If serial irq happens between 4 and 5 have finished, the kernel will crash

Cc: linux-parisc@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
[ luis: backported to 3.16: used Helge's backport ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 arch/parisc/kernel/irq.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index cfe056fe7f5c..34f06be569d9 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -507,8 +507,8 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	struct pt_regs *old_regs;
 	unsigned long eirr_val;
 	int irq, cpu = smp_processor_id();
-#ifdef CONFIG_SMP
 	struct irq_desc *desc;
+#ifdef CONFIG_SMP
 	cpumask_t dest;
 #endif
 
@@ -521,8 +521,12 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 		goto set_out;
 	irq = eirr_to_irq(eirr_val);
 
-#ifdef CONFIG_SMP
+	/* Filter out spurious interrupts, mostly from serial port at bootup */
 	desc = irq_to_desc(irq);
+	if (unlikely(!desc->action))
+		goto set_out;
+
+#ifdef CONFIG_SMP
 	cpumask_copy(&dest, desc->irq_data.affinity);
 	if (irqd_is_per_cpu(&desc->irq_data) &&
 	    !cpu_isset(smp_processor_id(), dest)) {

From - Thu Nov 08 21:37:55 2018
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Subject: remove dma_supported and pci_dma_supported as public APIs
Date: Sat,  3 Oct 2015 17:19:24 +0200
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All driver should be using dma_set_mask / pci_set_dma_mask to try
to set the dma mask instead of just querying it.  Without that some
iommu implementations may not work.

pci_dma_supported is removed entirely, but dma_supported stays for
dma_ops implementations for now.


From - Thu Nov 08 21:37:55 2018
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Subject: [PATCH 04/15] saa7134: use pci_set_dma_mask insted of pci_dma_supported
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This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/media/pci/saa7134/saa7134-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/saa7134/saa7134-core.c b/drivers/media/pci/saa7134/saa7134-core.c
index 72d7f99..6ba4086 100644
--- a/drivers/media/pci/saa7134/saa7134-core.c
+++ b/drivers/media/pci/saa7134/saa7134-core.c
@@ -949,7 +949,7 @@ static int saa7134_initdev(struct pci_dev *pci_dev,
 	       pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 	       dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 	pci_set_master(pci_dev);
-	if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) {
+	if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
 		pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
 		err = -EIO;
 		goto fail1;
-- 
1.9.1


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Subject: [PATCH 07/15] cx23885: use pci_set_dma_mask insted of pci_dma_supported
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This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/media/pci/cx23885/cx23885-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/cx23885/cx23885-core.c b/drivers/media/pci/cx23885/cx23885-core.c
index 7aee76a..8194052 100644
--- a/drivers/media/pci/cx23885/cx23885-core.c
+++ b/drivers/media/pci/cx23885/cx23885-core.c
@@ -1990,7 +1990,7 @@ static int cx23885_initdev(struct pci_dev *pci_dev,
 		(unsigned long long)pci_resource_start(pci_dev, 0));
 
 	pci_set_master(pci_dev);
-	if (!pci_dma_supported(pci_dev, 0xffffffff)) {
+	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
 		printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
 		err = -EIO;
 		goto fail_context;
-- 
1.9.1


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Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/parisc/ccio-dma.c            | 2 --
 include/asm-generic/pci-dma-compat.h | 6 ------
 2 files changed, 8 deletions(-)

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 957b421..8e11fb2 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -704,8 +704,6 @@ ccio_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
  * ccio_dma_supported - Verify the IOMMU supports the DMA address range.
  * @dev: The PCI device.
  * @mask: A bit mask describing the DMA address range of the device.
- *
- * This function implements the pci_dma_supported function.
  */
 static int 
 ccio_dma_supported(struct device *dev, u64 mask)
diff --git a/include/asm-generic/pci-dma-compat.h b/include/asm-generic/pci-dma-compat.h
index c110843..eafce7b 100644
--- a/include/asm-generic/pci-dma-compat.h
+++ b/include/asm-generic/pci-dma-compat.h
@@ -6,12 +6,6 @@
 
 #include <linux/dma-mapping.h>
 
-static inline int
-pci_dma_supported(struct pci_dev *hwdev, u64 mask)
-{
-	return dma_supported(hwdev == NULL ? NULL : &hwdev->dev, mask);
-}
-
 static inline void *
 pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
 		     dma_addr_t *dma_handle)
-- 
1.9.1


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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2053283>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/net/usb/usbnet.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index b4cf107..9497d51 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1661,12 +1661,6 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 	 * bind() should set rx_urb_size in that case.
 	 */
 	dev->hard_mtu = net->mtu + net->hard_header_len;
-#if 0
-// dma_supported() is deeply broken on almost all architectures
-	// possible with some EHCI controllers
-	if (dma_supported (&udev->dev, DMA_BIT_MASK(64)))
-		net->features |= NETIF_F_HIGHDMA;
-#endif
 
 	net->netdev_ops = &usbnet_netdev_ops;
 	net->watchdog_timeo = TX_TIMEOUT_JIFFIES;
-- 
1.9.1


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Subject: [PATCH 09/15] mpsc: use dma_set_mask insted of dma_supported
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This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/tty/serial/mpsc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/mpsc.c b/drivers/tty/serial/mpsc.c
index 82bb6d1..11e084e 100644
--- a/drivers/tty/serial/mpsc.c
+++ b/drivers/tty/serial/mpsc.c
@@ -755,7 +755,7 @@ static int mpsc_alloc_ring_mem(struct mpsc_port_info *pi)
 		pi->port.line);
 
 	if (!pi->dma_region) {
-		if (!dma_supported(pi->port.dev, 0xffffffff)) {
+		if (!dma_set_mask(pi->port.dev, 0xffffffff)) {
 			printk(KERN_ERR "MPSC: Inadequate DMA support\n");
 			rc = -ENXIO;
 		} else if ((pi->dma_region = dma_alloc_noncoherent(pi->port.dev,
-- 
1.9.1


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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 15/15] dma: remove external references to dma_supported
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Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 Documentation/DMA-API.txt       | 13 -------------
 drivers/usb/host/ehci-hcd.c     |  2 +-
 drivers/usb/host/fotg210-hcd.c  |  2 +-
 drivers/usb/host/fusbh200-hcd.c |  2 +-
 drivers/usb/host/oxu210hp-hcd.c |  2 +-
 5 files changed, 4 insertions(+), 17 deletions(-)

diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index edccacd..55f48684 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -142,19 +142,6 @@ Part Ic - DMA addressing limitations
 ------------------------------------
 
 int
-dma_supported(struct device *dev, u64 mask)
-
-Checks to see if the device can support DMA to the memory described by
-mask.
-
-Returns: 1 if it can and 0 if it can't.
-
-Notes: This routine merely tests to see if the mask is possible.  It
-won't change the current mask settings.  It is more intended as an
-internal API for use by the platform than an external API for use by
-driver writers.
-
-int
 dma_set_mask_and_coherent(struct device *dev, u64 mask)
 
 Checks to see if the mask is possible and updates the device
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index c63d82c..48c92bf 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -589,7 +589,7 @@ static int ehci_run (struct usb_hcd *hcd)
 	 * streaming mappings for I/O buffers, like pci_map_single(),
 	 * can return segments above 4GB, if the device allows.
 	 *
-	 * NOTE:  the dma mask is visible through dma_supported(), so
+	 * NOTE:  the dma mask is visible through dev->dma_mask, so
 	 * drivers can pass this info along ... like NETIF_F_HIGHDMA,
 	 * Scsi_Host.highmem_io, and so forth.  It's readonly to all
 	 * host side drivers though.
diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index 000ed80..c5fc3ef 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -5258,7 +5258,7 @@ static int fotg210_run(struct usb_hcd *hcd)
 	 * streaming mappings for I/O buffers, like pci_map_single(),
 	 * can return segments above 4GB, if the device allows.
 	 *
-	 * NOTE:  the dma mask is visible through dma_supported(), so
+	 * NOTE:  the dma mask is visible through dev->dma_mask, so
 	 * drivers can pass this info along ... like NETIF_F_HIGHDMA,
 	 * Scsi_Host.highmem_io, and so forth.  It's readonly to all
 	 * host side drivers though.
diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c
index 1fd8718..4a1243a 100644
--- a/drivers/usb/host/fusbh200-hcd.c
+++ b/drivers/usb/host/fusbh200-hcd.c
@@ -5181,7 +5181,7 @@ static int fusbh200_run (struct usb_hcd *hcd)
 	 * streaming mappings for I/O buffers, like pci_map_single(),
 	 * can return segments above 4GB, if the device allows.
 	 *
-	 * NOTE:  the dma mask is visible through dma_supported(), so
+	 * NOTE:  the dma mask is visible through dev->dma_mask, so
 	 * drivers can pass this info along ... like NETIF_F_HIGHDMA,
 	 * Scsi_Host.highmem_io, and so forth.  It's readonly to all
 	 * host side drivers though.
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index fe3bd1c..1f139d8 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -2721,7 +2721,7 @@ static int oxu_run(struct usb_hcd *hcd)
 	 * streaming mappings for I/O buffers, like pci_map_single(),
 	 * can return segments above 4GB, if the device allows.
 	 *
-	 * NOTE:  the dma mask is visible through dma_supported(), so
+	 * NOTE:  the dma mask is visible through dev->dma_mask, so
 	 * drivers can pass this info along ... like NETIF_F_HIGHDMA,
 	 * Scsi_Host.highmem_io, and so forth.  It's readonly to all
 	 * host side drivers though.
-- 
1.9.1


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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 12/15] kaweth: remove ifdefed out call to dma_supported
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2053286>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/net/usb/kaweth.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index 1e9cdca..f64b25c 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -1177,12 +1177,6 @@ err_fw:
 	INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl);
 	usb_set_intfdata(intf, kaweth);
 
-#if 0
-// dma_supported() is deeply broken on almost all architectures
-	if (dma_supported (dev, 0xffffffffffffffffULL))
-		kaweth->net->features |= NETIF_F_HIGHDMA;
-#endif
-
 	SET_NETDEV_DEV(netdev, dev);
 	if (register_netdev(netdev) != 0) {
 		dev_err(dev, "Error registering netdev.\n");
-- 
1.9.1


From - Thu Nov 08 21:37:56 2018
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Just try to set a 64-bit DMA mask first and retry with the smaller dma_mask
if dma_set_mask failed.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/gpu/drm/nouveau/nouveau_ttm.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 3f0fb55..bb030e6 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -350,11 +350,14 @@ nouveau_ttm_init(struct nouveau_drm *drm)
 
 	bits = nvxx_mmu(&drm->device)->dma_bits;
 	if (nvxx_device(&drm->device)->func->pci) {
-		if (drm->agp.bridge ||
-		     !pci_dma_supported(dev->pdev, DMA_BIT_MASK(bits)))
+		if (drm->agp.bridge)
 			bits = 32;
 
 		ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
+		if (ret && bits != 32) {
+			bits = 32;
+			ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
+		}
 		if (ret)
 			return ret;
 
-- 
1.9.1


From - Thu Nov 08 21:37:56 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 11/15] sfc: don't call dma_supported
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dma_set_mask already checks for a supported DMA mask before updating it,
the call to dma_supported is redundant.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/net/ethernet/sfc/efx.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 974637d..4abe886 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -1247,11 +1247,9 @@ static int efx_init_io(struct efx_nic *efx)
 	 * masks event though they reject 46 bit masks.
 	 */
 	while (dma_mask > 0x7fffffffUL) {
-		if (dma_supported(&pci_dev->dev, dma_mask)) {
-			rc = dma_set_mask_and_coherent(&pci_dev->dev, dma_mask);
-			if (rc == 0)
-				break;
-		}
+		rc = dma_set_mask_and_coherent(&pci_dev->dev, dma_mask);
+		if (rc == 0)
+			break;
 		dma_mask >>= 1;
 	}
 	if (rc) {
-- 
1.9.1


From - Thu Nov 08 21:37:56 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 08/15] netup_unidvb: use pci_set_dma_mask insted of pci_dma_supported
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This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/media/pci/netup_unidvb/netup_unidvb_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
index 6d8bf627..511144f 100644
--- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
+++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
@@ -809,7 +809,7 @@ static int netup_unidvb_initdev(struct pci_dev *pci_dev,
 		"%s(): board vendor 0x%x, revision 0x%x\n",
 		__func__, board_vendor, board_revision);
 	pci_set_master(pci_dev);
-	if (!pci_dma_supported(pci_dev, 0xffffffff)) {
+	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
 		dev_err(&pci_dev->dev,
 			"%s(): 32bit PCI DMA is not supported\n", __func__);
 		goto pci_detect_err;
-- 
1.9.1


From - Thu Nov 08 21:37:56 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 06/15] cx25821: use pci_set_dma_mask insted of pci_dma_supported
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This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/media/pci/cx25821/cx25821-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/cx25821/cx25821-core.c b/drivers/media/pci/cx25821/cx25821-core.c
index 559f829..dbc695f 100644
--- a/drivers/media/pci/cx25821/cx25821-core.c
+++ b/drivers/media/pci/cx25821/cx25821-core.c
@@ -1319,7 +1319,7 @@ static int cx25821_initdev(struct pci_dev *pci_dev,
 		dev->pci_lat, (unsigned long long)dev->base_io_addr);
 
 	pci_set_master(pci_dev);
-	if (!pci_dma_supported(pci_dev, 0xffffffff)) {
+	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
 		pr_err("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
 		err = -EIO;
 		goto fail_irq;
-- 
1.9.1


From - Thu Nov 08 21:37:56 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 05/15] cx88: use pci_set_dma_mask insted of pci_dma_supported
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This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 drivers/media/pci/cx88/cx88-alsa.c  | 2 +-
 drivers/media/pci/cx88/cx88-mpeg.c  | 2 +-
 drivers/media/pci/cx88/cx88-video.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/pci/cx88/cx88-alsa.c b/drivers/media/pci/cx88/cx88-alsa.c
index 7f8dc60..0703a81 100644
--- a/drivers/media/pci/cx88/cx88-alsa.c
+++ b/drivers/media/pci/cx88/cx88-alsa.c
@@ -890,7 +890,7 @@ static int snd_cx88_create(struct snd_card *card, struct pci_dev *pci,
 		return err;
 	}
 
-	if (!pci_dma_supported(pci,DMA_BIT_MASK(32))) {
+	if (!pci_set_dma_mask(pci,DMA_BIT_MASK(32))) {
 		dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
 		err = -EIO;
 		cx88_core_put(core, pci);
diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c
index 34f5057..9b3b565 100644
--- a/drivers/media/pci/cx88/cx88-mpeg.c
+++ b/drivers/media/pci/cx88/cx88-mpeg.c
@@ -393,7 +393,7 @@ static int cx8802_init_common(struct cx8802_dev *dev)
 	if (pci_enable_device(dev->pci))
 		return -EIO;
 	pci_set_master(dev->pci);
-	if (!pci_dma_supported(dev->pci,DMA_BIT_MASK(32))) {
+	if (!pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32))) {
 		printk("%s/2: Oops: no 32bit PCI DMA ???\n",dev->core->name);
 		return -EIO;
 	}
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index 400e5ca..f12af31 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -1311,7 +1311,7 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
 	       dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 
 	pci_set_master(pci_dev);
-	if (!pci_dma_supported(pci_dev,DMA_BIT_MASK(32))) {
+	if (!pci_set_dma_mask(pci_dev,DMA_BIT_MASK(32))) {
 		printk("%s/0: Oops: no 32bit PCI DMA ???\n",core->name);
 		err = -EIO;
 		goto fail_core;
-- 
1.9.1

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From - Thu Nov 08 21:37:56 2018
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Path: news.gmane.org!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.comp.video.dri.devel,gmane.linux.drivers.video-input-infrastructure,gmane.linux.network,gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.usb.general
Subject: [PATCH 03/15] saa7164: use pci_set_dma_mask insted of pci_dma_supported
Date: Sat,  3 Oct 2015 17:19:27 +0200
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	linux-parisc@vger.kernel.org, linux-serial@vger.kernel.org,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>,
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	Oliver Neukum <oneukum@suse.com>
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This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/media/pci/saa7164/saa7164-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/saa7164/saa7164-core.c b/drivers/media/pci/saa7164/saa7164-core.c
index 3206a82..8f36b48 100644
--- a/drivers/media/pci/saa7164/saa7164-core.c
+++ b/drivers/media/pci/saa7164/saa7164-core.c
@@ -1264,7 +1264,7 @@ static int saa7164_initdev(struct pci_dev *pci_dev,
 
 	pci_set_master(pci_dev);
 	/* TODO */
-	if (!pci_dma_supported(pci_dev, 0xffffffff)) {
+	if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
 		printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
 		err = -EIO;
 		goto fail_irq;
-- 
1.9.1


From - Thu Nov 08 21:37:56 2018
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Subject: [PATCH 02/15] tw68-core: use pci_set_dma_mask insted of pci_dma_supported
Date: Sat,  3 Oct 2015 17:19:26 +0200
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	linux-parisc@vger.kernel.org, linux-serial@vger.kernel.org,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>,
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	Oliver Neukum <oneukum@suse.com>
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This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/media/pci/tw68/tw68-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/tw68/tw68-core.c b/drivers/media/pci/tw68/tw68-core.c
index 04706cc..8c5655d 100644
--- a/drivers/media/pci/tw68/tw68-core.c
+++ b/drivers/media/pci/tw68/tw68-core.c
@@ -257,7 +257,7 @@ static int tw68_initdev(struct pci_dev *pci_dev,
 		dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 		dev->pci_lat, (u64)pci_resource_start(pci_dev, 0));
 	pci_set_master(pci_dev);
-	if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) {
+	if (!pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
 		pr_info("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
 		err = -EIO;
 		goto fail1;
-- 
1.9.1


From - Thu Nov 08 21:37:56 2018
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Subject: [PATCH 01/15] pcnet32: use pci_set_dma_mask insted of pci_dma_supported
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2053295>

This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/net/ethernet/amd/pcnet32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index bc8b04f..e2afabf 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -1500,7 +1500,7 @@ pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return -ENODEV;
 	}
 
-	if (!pci_dma_supported(pdev, PCNET32_DMA_MASK)) {
+	if (!pci_set_dma_mask(pdev, PCNET32_DMA_MASK)) {
 		if (pcnet32_debug & NETIF_MSG_PROBE)
 			pr_err("architecture does not support 32bit PCI busmaster DMA\n");
 		return -ENODEV;
-- 
1.9.1


From - Thu Nov 08 21:37:56 2018
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Subject: Re: [PATCH 05/15] cx88: use pci_set_dma_mask insted of
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Hi Christoph,


Em Sat,  3 Oct 2015 17:19:29 +0200
Christoph Hellwig <hch@lst.de> escreveu:

> This ensures the dma mask that is supported by the driver is recorded
> in the device structure.


For this and the other patches touching at drivers/media:

Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  drivers/media/pci/cx88/cx88-alsa.c  | 2 +-
>  drivers/media/pci/cx88/cx88-mpeg.c  | 2 +-
>  drivers/media/pci/cx88/cx88-video.c | 2 +-
>  3 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/media/pci/cx88/cx88-alsa.c b/drivers/media/pci/cx88/cx88-alsa.c
> index 7f8dc60..0703a81 100644
> --- a/drivers/media/pci/cx88/cx88-alsa.c
> +++ b/drivers/media/pci/cx88/cx88-alsa.c
> @@ -890,7 +890,7 @@ static int snd_cx88_create(struct snd_card *card, struct pci_dev *pci,
>  		return err;
>  	}
>  
> -	if (!pci_dma_supported(pci,DMA_BIT_MASK(32))) {
> +	if (!pci_set_dma_mask(pci,DMA_BIT_MASK(32))) {
>  		dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
>  		err = -EIO;
>  		cx88_core_put(core, pci);
> diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c
> index 34f5057..9b3b565 100644
> --- a/drivers/media/pci/cx88/cx88-mpeg.c
> +++ b/drivers/media/pci/cx88/cx88-mpeg.c
> @@ -393,7 +393,7 @@ static int cx8802_init_common(struct cx8802_dev *dev)
>  	if (pci_enable_device(dev->pci))
>  		return -EIO;
>  	pci_set_master(dev->pci);
> -	if (!pci_dma_supported(dev->pci,DMA_BIT_MASK(32))) {
> +	if (!pci_set_dma_mask(dev->pci,DMA_BIT_MASK(32))) {
>  		printk("%s/2: Oops: no 32bit PCI DMA ???\n",dev->core->name);
>  		return -EIO;
>  	}
> diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
> index 400e5ca..f12af31 100644
> --- a/drivers/media/pci/cx88/cx88-video.c
> +++ b/drivers/media/pci/cx88/cx88-video.c
> @@ -1311,7 +1311,7 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
>  	       dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
>  
>  	pci_set_master(pci_dev);
> -	if (!pci_dma_supported(pci_dev,DMA_BIT_MASK(32))) {
> +	if (!pci_set_dma_mask(pci_dev,DMA_BIT_MASK(32))) {
>  		printk("%s/0: Oops: no 32bit PCI DMA ???\n",core->name);
>  		err = -EIO;
>  		goto fail_core;

From - Thu Nov 08 21:37:56 2018
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Subject: Re: [PATCH 15/15] dma: remove external references to dma_supported
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On Sat, Oct 03, 2015 at 05:19:39PM +0200, Christoph Hellwig wrote:
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  Documentation/DMA-API.txt       | 13 -------------
>  drivers/usb/host/ehci-hcd.c     |  2 +-
>  drivers/usb/host/fotg210-hcd.c  |  2 +-
>  drivers/usb/host/fusbh200-hcd.c |  2 +-
>  drivers/usb/host/oxu210hp-hcd.c |  2 +-
>  5 files changed, 4 insertions(+), 17 deletions(-)


Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On 03/10/15 16:19, Christoph Hellwig wrote:
> dma_set_mask already checks for a supported DMA mask before updating it,
> the call to dma_supported is redundant.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Acked-by: Bert Kenward <bkenward@solarflare.com>

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Subject: Re: [PATCH 01/15] pcnet32: use pci_set_dma_mask insted of
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On Sat, 2015-10-03 at 17:19 +0200, Christoph Hellwig wrote:
> This ensures the dma mask that is supported by the driver is recorded
> in the device structure.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  drivers/net/ethernet/amd/pcnet32.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Acked-by: Don Fry <pcnet32@frontier.com>

> diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
> index bc8b04f..e2afabf 100644
> --- a/drivers/net/ethernet/amd/pcnet32.c
> +++ b/drivers/net/ethernet/amd/pcnet32.c
> @@ -1500,7 +1500,7 @@ pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent)
>  		return -ENODEV;
>  	}
>  
> -	if (!pci_dma_supported(pdev, PCNET32_DMA_MASK)) {
> +	if (!pci_set_dma_mask(pdev, PCNET32_DMA_MASK)) {
>  		if (pcnet32_debug & NETIF_MSG_PROBE)
>  			pr_err("architecture does not support 32bit PCI busmaster DMA\n");
>  		return -ENODEV;



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Subject: Re: [PATCH 08/15] netup_unidvb: use pci_set_dma_mask insted of pci_dma_supported
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Hello,

Acked-by: Abylay Ospan <aospan@netup.ru>

thanks !

2015-10-03 18:19 GMT+03:00 Christoph Hellwig <hch@lst.de>:
> This ensures the dma mask that is supported by the driver is recorded
> in the device structure.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  drivers/media/pci/netup_unidvb/netup_unidvb_core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
> index 6d8bf627..511144f 100644
> --- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
> +++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
> @@ -809,7 +809,7 @@ static int netup_unidvb_initdev(struct pci_dev *pci_dev,
>                 "%s(): board vendor 0x%x, revision 0x%x\n",
>                 __func__, board_vendor, board_revision);
>         pci_set_master(pci_dev);
> -       if (!pci_dma_supported(pci_dev, 0xffffffff)) {
> +       if (!pci_set_dma_mask(pci_dev, 0xffffffff)) {
>                 dev_err(&pci_dev->dev,
>                         "%s(): 32bit PCI DMA is not supported\n", __func__);
>                 goto pci_detect_err;
> --
> 1.9.1
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-media" in
> the body of a message to majordomo@vger.kernel.org
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-- 
Abylay Ospan,
NetUP Inc.
http://www.netup.tv

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From: Ben Hutchings <ben@decadent.org.uk>
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Subject: [PATCH 3.2 105/107] parisc: Filter out spurious interrupts in
 PA-RISC irq handler
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Cc: akpm@linux-foundation.org, "Helge Deller" <deller@gmx.de>,
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3.2.72-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Helge Deller <deller@gmx.de>

commit b1b4e435e4ef7de77f07bf2a42c8380b960c2d44 upstream.

When detecting a serial port on newer PA-RISC machines (with iosapic) we have a
long way to go to find the right IRQ line, registering it, then registering the
serial port and the irq handler for the serial port. During this phase spurious
interrupts for the serial port may happen which then crashes the kernel because
the action handler might not have been set up yet.

So, basically it's a race condition between the serial port hardware and the
CPU which sets up the necessary fields in the irq sructs. The main reason for
this race is, that we unmask the serial port irqs too early without having set
up everything properly before (which isn't easily possible because we need the
IRQ number to register the serial ports).

This patch is a work-around for this problem. It adds checks to the CPU irq
handler to verify if the IRQ action field has been initialized already. If not,
we just skip this interrupt (which isn't critical for a serial port at bootup).
The real fix would probably involve rewriting all PA-RISC specific IRQ code
(for CPU, IOSAPIC, GSC and EISA) to use IRQ domains with proper parenting of
the irq chips and proper irq enabling along this line.

This bug has been in the PA-RISC port since the beginning, but the crashes
happened very rarely with currently used hardware.  But on the latest machine
which I bought (a C8000 workstation), which uses the fastest CPUs (4 x PA8900,
1GHz) and which has the largest possible L1 cache size (64MB each), the kernel
crashed at every boot because of this race. So, without this patch the machine
would currently be unuseable.

For the record, here is the flow logic:
1. serial_init_chip() in 8250_gsc.c calls iosapic_serial_irq().
2. iosapic_serial_irq() calls txn_alloc_irq() to find the irq.
3. iosapic_serial_irq() calls cpu_claim_irq() to register the CPU irq
4. cpu_claim_irq() unmasks the CPU irq (which it shouldn't!)
5. serial_init_chip() then registers the 8250 port.
Problems:
- In step 4 the CPU irq shouldn't have been registered yet, but after step 5
- If serial irq happens between 4 and 5 have finished, the kernel will crash

Cc: linux-parisc@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

 arch/parisc/kernel/irq.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -336,8 +336,8 @@ void do_cpu_irq_mask(struct pt_regs *reg
 	struct pt_regs *old_regs;
 	unsigned long eirr_val;
 	int irq, cpu = smp_processor_id();
-#ifdef CONFIG_SMP
 	struct irq_desc *desc;
+#ifdef CONFIG_SMP
 	cpumask_t dest;
 #endif
 
@@ -350,8 +350,12 @@ void do_cpu_irq_mask(struct pt_regs *reg
 		goto set_out;
 	irq = eirr_to_irq(eirr_val);
 
-#ifdef CONFIG_SMP
+	/* Filter out spurious interrupts, mostly from serial port at bootup */
 	desc = irq_to_desc(irq);
+	if (unlikely(!desc->action))
+		goto set_out;
+
+#ifdef CONFIG_SMP
 	cpumask_copy(&dest, desc->irq_data.affinity);
 	if (irqd_is_per_cpu(&desc->irq_data) &&
 	    !cpu_isset(smp_processor_id(), dest)) {

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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH v3] parisc: Change L1_CACHE_BYTES to 16
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The latest version changes L1_CACHE_BYTES to 16 bytes and doesn't adjust =
SMP_CACHE_BYTES as
per James suggestion

Tested for 16 days on rp3440.

Signed-off-by: John David Anglin <dave.anglin@bell.net>



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diff --git a/arch/parisc/include/asm/cache.h =
b/arch/parisc/include/asm/cache.h
index 47f11c7..3d0e17b 100644
--- a/arch/parisc/include/asm/cache.h
+++ b/arch/parisc/include/asm/cache.h
@@ -7,20 +7,12 @@
=20
=20
 /*
- * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
- * 32-byte cachelines.  The default configuration is not for SMP =
anyway,
- * so if you're building for SMP, you should select the appropriate
- * processor type.  There is a potential livelock danger when running
- * a machine with this value set too small, but it's more probable =
you'll
- * just ruin performance.
+ * PA 2.0 processors have 64 and 128-byte L2 cachelines; PA 1.1 =
processors
+ * have 32-byte cachelines.  The L1 length appears to be 16 bytes but =
this
+ * is not clearly documented.
  */
-#ifdef CONFIG_PA20
-#define L1_CACHE_BYTES 64
-#define L1_CACHE_SHIFT 6
-#else
-#define L1_CACHE_BYTES 32
-#define L1_CACHE_SHIFT 5
-#endif
+#define L1_CACHE_BYTES 16
+#define L1_CACHE_SHIFT 4
=20
 #ifndef __ASSEMBLY__
=20

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From - Thu Nov 08 21:37:57 2018
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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.iommu
Subject: Re: [PATCH] iommu-common: fix return type of iommu_tbl_range_alloc()
Date: Wed, 21 Oct 2015 21:12:54 +0200
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Hi Andre, J=C3=B6rg,

On Fri, Sep 18, 2015 at 11:09 AM, Andre Przywara <andre.przywara@arm.co=
m> wrote:
> Though iommu_tbl_range_alloc() is only used by Sparc code, the
> function itself lives in lib/iommu-common.c and is thus included in
> other architecture's code as well.
> When compiled on a 32-bit architecture using 64-bit DMA addresses
> (ARM with LPAE), there is a compiler warning about a type mismatch
> between dma_addr_t and the return type of this function:
>
> In file included from /src/linux/include/linux/dma-mapping.h:86:0,
>                  from /src/linux/lib/iommu-common.c:11:
> /src/linux/lib/iommu-common.c: In function 'iommu_tbl_range_alloc':
> /src/linux/arch/arm/include/asm/dma-mapping.h:16:24: warning: large i=
nteger implicitly truncated to unsigned type [-Woverflow]
>  #define DMA_ERROR_CODE (~(dma_addr_t)0x0)
>                         ^
> /src/linux/lib/iommu-common.c:127:10: note: in expansion of macro
> 'DMA_ERROR_CODE'
>    return DMA_ERROR_CODE;

While I welcome a fix for this annoying warning on arm...

> --- a/lib/iommu-common.c
> +++ b/lib/iommu-common.c
> @@ -99,15 +99,16 @@ void iommu_tbl_pool_init(struct iommu_map_table *=
iommu,
>  }
>  EXPORT_SYMBOL(iommu_tbl_pool_init);
>
> -unsigned long iommu_tbl_range_alloc(struct device *dev,
> -                               struct iommu_map_table *iommu,
> -                               unsigned long npages,
> -                               unsigned long *handle,
> -                               unsigned long mask,
> -                               unsigned int align_order)
> +dma_addr_t iommu_tbl_range_alloc(struct device *dev,
> +                                struct iommu_map_table *iommu,
> +                                unsigned long npages,
> +                                unsigned long *handle,
> +                                unsigned long mask,
> +                                unsigned int align_order)
>  {
>         unsigned int pool_hash =3D __this_cpu_read(iommu_hash_common)=
;
> -       unsigned long n, end, start, limit, boundary_size;
> +       dma_addr_t n;
> +       unsigned long end, start, limit, boundary_size;

=2E.. this doesn't look like the right fix.

Apparently 64-bit parisc doesn't set ARCH_DMA_ADDR_T_64BIT, hence assig=
ning
(64-bit) "unsigned long" to (32-bit) dma_addr_t will truncate the addre=
ss.

Does this function really need to return DMA_ERROR_CODE in case of
failure?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
                                -- Linus Torvalds
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Subject: Re: [PATCH] iommu-common: fix return type of iommu_tbl_range_alloc()
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Cc: Andre Przywara <andre.przywara@arm.com>,
	Joerg Roedel <joro@8bytes.org>,
	"David S. Miller" <davem@davemloft.net>,
	sparclinux <sparclinux@vger.kernel.org>,
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	<linux-arm-kernel@lists.infradead.org>,
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On (10/21/15 21:12), Geert Uytterhoeven wrote:
> 
> Does this function really need to return DMA_ERROR_CODE in case of
> failure?

fwiw, this came up very early in code review:

  http://marc.info/?l=linux-sparc&m=142613044704833&w=2

--Sowmini
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> Betreff: [PATCH v3] parisc: Change L1_CACHE_BYTES to 16
> The latest version changes L1_CACHE_BYTES to 16 bytes and doesn't adj=
ust SMP_CACHE_BYTES as
> per James suggestion

This patch sadly breaks build on Linux kernel git head:

In file included from /home/cvs/LINUX/git-kernel/linux-2.6/net/core/dev=
=2Ec:92:0:
/net/core/dev.c: In function =E2=80=98expand_xps_map=E2=80=99:
/include/linux/netdevice.h:721:27: warning: overflow in implicit consta=
nt conversion [-Woverflow]
 #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map)) \
/net/core/dev.c:1972:18: note: in expansion of macro =E2=80=98XPS_MIN_M=
AP_ALLOC=E2=80=99
  int alloc_len =3D XPS_MIN_MAP_ALLOC;
                  ^
Helge
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> > Betreff: [PATCH v3] parisc: Change L1_CACHE_BYTES to 16
> > The latest version changes L1_CACHE_BYTES to 16 bytes and doesn't a=
djust SMP_CACHE_BYTES as
> > per James suggestion
>=20
> This patch sadly breaks build on Linux kernel git head:
>=20
> In file included from /home/cvs/LINUX/git-kernel/linux-2.6/net/core/d=
ev.c:92:0:
> /net/core/dev.c: In function =E2=80=98expand_xps_map=E2=80=99:
> /include/linux/netdevice.h:721:27: warning: overflow in implicit cons=
tant conversion [-Woverflow]
>  #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))=
 \
> /net/core/dev.c:1972:18: note: in expansion of macro =E2=80=98XPS_MIN=
_MAP_ALLOC=E2=80=99
>   int alloc_len =3D XPS_MIN_MAP_ALLOC;

This is one possibility to fix it:

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2d15e38..21cf683 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -718,7 +718,7 @@ struct xps_map {
        u16 queues[0];
 };
 #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * sizeof(=
u16)))
-#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))  =
 \
+#define XPS_MIN_MAP_ALLOC ( (L1_CACHE_BYTES > sizeof(struct xps_map) ?=
 L1_CACHE_BYTES : 2 * L1_CACHE_BYTES) - sizeof(struct xps_map)   \
     / sizeof(u16))
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Subject: Re: Aw: [PATCH v3] parisc: Change L1_CACHE_BYTES to 16
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On Thu, 2015-10-22 at 13:53 +0200, Helge Deller wrote:
> > > Betreff: [PATCH v3] parisc: Change L1_CACHE_BYTES to 16
> > > The latest version changes L1_CACHE_BYTES to 16 bytes and doesn't=
 adjust SMP_CACHE_BYTES as
> > > per James suggestion
> >=20
> > This patch sadly breaks build on Linux kernel git head:
> >=20
> > In file included from /home/cvs/LINUX/git-kernel/linux-2.6/net/core=
/dev.c:92:0:
> > /net/core/dev.c: In function =E2=80=98expand_xps_map=E2=80=99:
> > /include/linux/netdevice.h:721:27: warning: overflow in implicit co=
nstant conversion [-Woverflow]
> >  #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map=
)) \
> > /net/core/dev.c:1972:18: note: in expansion of macro =E2=80=98XPS_M=
IN_MAP_ALLOC=E2=80=99
> >   int alloc_len =3D XPS_MIN_MAP_ALLOC;
>=20
> This is one possibility to fix it:
>=20
> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index 2d15e38..21cf683 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -718,7 +718,7 @@ struct xps_map {
>         u16 queues[0];
>  };
>  #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * sizeo=
f(u16)))
> -#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))=
   \
> +#define XPS_MIN_MAP_ALLOC ( (L1_CACHE_BYTES > sizeof(struct xps_map)=
 ? L1_CACHE_BYTES : 2 * L1_CACHE_BYTES) - sizeof(struct xps_map)   \
>      / sizeof(u16))

But it indicates the whole kernel has the architectural assumption that
L1_CACHE_BYTES >=3D 32, so I don't think we should be trying to change
that.

James


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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: Aw: [PATCH v3] parisc: Change L1_CACHE_BYTES to 16
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To: James Bottomley <James.Bottomley@HansenPartnership.com>,
	Helge Deller <deller@gmx.de>
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On 2015-10-22 10:35 AM, James Bottomley wrote:
> On Thu, 2015-10-22 at 13:53 +0200, Helge Deller wrote:
>>>> Betreff: [PATCH v3] parisc: Change L1_CACHE_BYTES to 16
>>>> The latest version changes L1_CACHE_BYTES to 16 bytes and doesn't =
adjust SMP_CACHE_BYTES as
>>>> per James suggestion
>>> This patch sadly breaks build on Linux kernel git head:
>>>
>>> In file included from /home/cvs/LINUX/git-kernel/linux-2.6/net/core=
/dev.c:92:0:
>>> /net/core/dev.c: In function =E2=80=98expand_xps_map=E2=80=99:
>>> /include/linux/netdevice.h:721:27: warning: overflow in implicit co=
nstant conversion [-Woverflow]
>>>   #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_ma=
p)) \
>>> /net/core/dev.c:1972:18: note: in expansion of macro =E2=80=98XPS_M=
IN_MAP_ALLOC=E2=80=99
>>>    int alloc_len =3D XPS_MIN_MAP_ALLOC;
>> This is one possibility to fix it:
>>
>> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
>> index 2d15e38..21cf683 100644
>> --- a/include/linux/netdevice.h
>> +++ b/include/linux/netdevice.h
>> @@ -718,7 +718,7 @@ struct xps_map {
>>          u16 queues[0];
>>   };
>>   #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * siz=
eof(u16)))
>> -#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map)=
)   \
>> +#define XPS_MIN_MAP_ALLOC ( (L1_CACHE_BYTES > sizeof(struct xps_map=
) ? L1_CACHE_BYTES : 2 * L1_CACHE_BYTES) - sizeof(struct xps_map)   \
>>       / sizeof(u16))
> But it indicates the whole kernel has the architectural assumption th=
at
> L1_CACHE_BYTES >=3D 32, so I don't think we should be trying to chang=
e
> that.
However, there are already at least two other arches with L1_CACHE_BYTE=
S=20
=3D 16.

Dave

--=20
John David Anglin  dave.anglin@bell.net

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network
Subject: CONFIG_XPS depends on L1_CACHE_BYTES being greater than sizeof(struct
 xps_map)
Date: Thu, 22 Oct 2015 22:00:11 +0200
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Hi Tom & David,

I've queued-up a patch for the parisc architecture which reduces L1_CAC=
HE_BYTES from 32 to 16:
  https://patchwork.kernel.org/patch/7399291/

But this change will break the kernel build like this:

In file included from net/core/dev.c:92:0:
net/core/dev.c: In function =E2=80=98expand_xps_map=E2=80=99:
include/linux/netdevice.h:721:27: warning: overflow in implicit constan=
t conversion [-Woverflow]
   #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))=
 \
net/core/dev.c:1972:18: note: in expansion of macro =E2=80=98XPS_MIN_MA=
P_ALLOC=E2=80=99
   int alloc_len =3D XPS_MIN_MAP_ALLOC;

Do you see an easy way to fix this ?

Thanks,
Helge=20
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From: Tom Herbert <tom@herbertland.com>
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Subject: Re: CONFIG_XPS depends on L1_CACHE_BYTES being greater than
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Cc: Tom Herbert <therbert@google.com>,
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On Thu, Oct 22, 2015 at 1:00 PM, Helge Deller <deller@gmx.de> wrote:
> Hi Tom & David,
>
> I've queued-up a patch for the parisc architecture which reduces L1_C=
ACHE_BYTES from 32 to 16:
>   https://patchwork.kernel.org/patch/7399291/
>
> But this change will break the kernel build like this:
>
> In file included from net/core/dev.c:92:0:
> net/core/dev.c: In function =E2=80=98expand_xps_map=E2=80=99:
> include/linux/netdevice.h:721:27: warning: overflow in implicit const=
ant conversion [-Woverflow]
>    #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map=
)) \
> net/core/dev.c:1972:18: note: in expansion of macro =E2=80=98XPS_MIN_=
MAP_ALLOC=E2=80=99
>    int alloc_len =3D XPS_MIN_MAP_ALLOC;
>
> Do you see an easy way to fix this ?
>
How about

 #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - ((sizeof(struct xps_map)
% L1_CACHE_BYTES)) \

Tom

> Thanks,
> Helge
> --
> To unsubscribe from this list: send the line "unsubscribe netdev" in
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> More majordomo info at  http://vger.kernel.org/majordomo-info.html

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Subject: Re: CONFIG_XPS depends on L1_CACHE_BYTES being greater than
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Cc: Tom Herbert <therbert@google.com>,
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On Thu, 2015-10-22 at 22:00 +0200, Helge Deller wrote:
> Hi Tom & David,
>=20
> I've queued-up a patch for the parisc architecture which reduces L1_C=
ACHE_BYTES from 32 to 16:
>   https://patchwork.kernel.org/patch/7399291/
>=20
> But this change will break the kernel build like this:
>=20
> In file included from net/core/dev.c:92:0:
> net/core/dev.c: In function =E2=80=98expand_xps_map=E2=80=99:
> include/linux/netdevice.h:721:27: warning: overflow in implicit const=
ant conversion [-Woverflow]
>    #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map=
)) \
> net/core/dev.c:1972:18: note: in expansion of macro =E2=80=98XPS_MIN_=
MAP_ALLOC=E2=80=99
>    int alloc_len =3D XPS_MIN_MAP_ALLOC;
>=20
> Do you see an easy way to fix this ?


Using L2_CACHE_BYTES would be better, but it unfortunately does not
exist.




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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network
Subject: Re: CONFIG_XPS depends on L1_CACHE_BYTES being greater than
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Cc: Tom Herbert <therbert@google.com>,
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On 22.10.2015 23:37, Tom Herbert wrote:
> On Thu, Oct 22, 2015 at 1:00 PM, Helge Deller <deller@gmx.de> wrote:
>> Hi Tom & David,
>>
>> I've queued-up a patch for the parisc architecture which reduces L1_=
CACHE_BYTES from 32 to 16:
>>   https://patchwork.kernel.org/patch/7399291/
>>
>> But this change will break the kernel build like this:
>>
>> In file included from net/core/dev.c:92:0:
>> net/core/dev.c: In function =E2=80=98expand_xps_map=E2=80=99:
>> include/linux/netdevice.h:721:27: warning: overflow in implicit cons=
tant conversion [-Woverflow]
>>    #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_ma=
p)) \
>> net/core/dev.c:1972:18: note: in expansion of macro =E2=80=98XPS_MIN=
_MAP_ALLOC=E2=80=99
>>    int alloc_len =3D XPS_MIN_MAP_ALLOC;
>>
>> Do you see an easy way to fix this ?
>>
> How about
>=20
>  #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - ((sizeof(struct xps_map=
)
> % L1_CACHE_BYTES)) \

The full line would then be:
#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - (sizeof(struct xps_map) % =
L1_CACHE_BYTES)) / sizeof(u16))

The only problem I see with this is, that XPS_MIN_MAP_ALLOC might becom=
e zero.
In that case the call to kzalloc_node() in expand_xps_map() doesn't all=
ocate any memory for the queues.

Helge
--
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From - Thu Nov 08 21:37:58 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.network,gmane.linux.ports.parisc
Subject: Re: CONFIG_XPS depends on L1_CACHE_BYTES being greater than
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On 22.10.2015 23:50, Eric Dumazet wrote:
> On Thu, 2015-10-22 at 22:00 +0200, Helge Deller wrote:
>> Hi Tom & David,
>>
>> I've queued-up a patch for the parisc architecture which reduces L1_=
CACHE_BYTES from 32 to 16:
>>   https://patchwork.kernel.org/patch/7399291/
>>
>> But this change will break the kernel build like this:
>>
>> In file included from net/core/dev.c:92:0:
>> net/core/dev.c: In function =E2=80=98expand_xps_map=E2=80=99:
>> include/linux/netdevice.h:721:27: warning: overflow in implicit cons=
tant conversion [-Woverflow]
>>    #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_ma=
p)) \
>> net/core/dev.c:1972:18: note: in expansion of macro =E2=80=98XPS_MIN=
_MAP_ALLOC=E2=80=99
>>    int alloc_len =3D XPS_MIN_MAP_ALLOC;
>>
>> Do you see an easy way to fix this ?
>=20
>=20
> Using L2_CACHE_BYTES would be better, but it unfortunately does not
> exist.

Then, how about simply changing it to twice of L1_CACHE_BYTES ?

#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)=
) / sizeof(u16))

Helge

From - Thu Nov 08 21:37:58 2018
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X-Mozilla-Keys:                                                                                 
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From: Eric Dumazet <eric.dumazet@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network
Subject: Re: CONFIG_XPS depends on L1_CACHE_BYTES being greater than
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Cc: Tom Herbert <therbert@google.com>,
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On Fri, 2015-10-23 at 21:25 +0200, Helge Deller wrote:

> Then, how about simply changing it to twice of L1_CACHE_BYTES ?
> 
> #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) / sizeof(u16))


Seems good to me.


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* Eric Dumazet <eric.dumazet@gmail.com>:
> On Fri, 2015-10-23 at 21:25 +0200, Helge Deller wrote:
> 
> > Then, how about simply changing it to twice of L1_CACHE_BYTES ?
> > 
> > #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) / sizeof(u16))
> 
> 
> Seems good to me.

Great!

Can you then maybe give me an Acked-by or signed-off for the patch below?
It further adds a compile-time check to avoid that XPS_MIN_MAP_ALLOC
gets calculated to zero on any architecture - otherwise no queues would
be allocated. 

In addition I would like to push it for v4.3 then through my parisc-tree
(after keeping it in for-next for 1-2 days), together with the patch
which reduces L1_CACHE_BYTES to 16 on parisc.
Would that be OK too? 

Thanks!
Helge


[PATCH] net/xps: Increase initial number of xps queues

Increase the number of initial allocated xps queues, so that the initial record
allocates twice the size of L1_CACHE_BYTES bytes.

This change is needed to copy with architectures where L1_CACHE_BYTES is
defined to equal or less than 16 bytes.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2d15e38..d152788 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -718,7 +718,7 @@ struct xps_map {
 	u16 queues[0];
 };
 #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * sizeof(u16)))
-#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))	\
+#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) \
     / sizeof(u16))
 
 /*
diff --git a/net/core/dev.c b/net/core/dev.c
index 6bb6470..f6d6dd1 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1972,6 +1972,8 @@ static struct xps_map *expand_xps_map(struct xps_map *map,
 	int alloc_len = XPS_MIN_MAP_ALLOC;
 	int i, pos;
 
+	BUILD_BUG_ON(XPS_MIN_MAP_ALLOC == 0);
+
 	for (pos = 0; map && pos < map->len; pos++) {
 		if (map->queues[pos] != index)
 			continue;


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Subject: Re: CONFIG_XPS depends on L1_CACHE_BYTES being greater than
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On 23.10.2015 23:08, Helge Deller wrote:
> * Eric Dumazet <eric.dumazet@gmail.com>:
>> On Fri, 2015-10-23 at 21:25 +0200, Helge Deller wrote:
>>
>>> Then, how about simply changing it to twice of L1_CACHE_BYTES ?
>>>
>>> #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) / sizeof(u16))
>>
>>
>> Seems good to me.
> 
> Great!
> 
> Can you then maybe give me an Acked-by or signed-off for the patch below?
> It further adds a compile-time check to avoid that XPS_MIN_MAP_ALLOC
> gets calculated to zero on any architecture - otherwise no queues would
> be allocated. 
> 
> In addition I would like to push it for v4.3 then through my parisc-tree
> (after keeping it in for-next for 1-2 days), together with the patch
> which reduces L1_CACHE_BYTES to 16 on parisc.
> Would that be OK too? 
> 
> Thanks!
> Helge
> 
> 
> [PATCH] net/xps: Increase initial number of xps queues
> 
> Increase the number of initial allocated xps queues, so that the initial record
> allocates twice the size of L1_CACHE_BYTES bytes.
> 
> This change is needed to copy with architectures where L1_CACHE_BYTES is

s/copy/cope/g


> defined to equal or less than 16 bytes.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index 2d15e38..d152788 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -718,7 +718,7 @@ struct xps_map {
>  	u16 queues[0];
>  };
>  #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * sizeof(u16)))
> -#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))	\
> +#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) \
>      / sizeof(u16))
>  
>  /*
> diff --git a/net/core/dev.c b/net/core/dev.c
> index 6bb6470..f6d6dd1 100644
> --- a/net/core/dev.c
> +++ b/net/core/dev.c
> @@ -1972,6 +1972,8 @@ static struct xps_map *expand_xps_map(struct xps_map *map,
>  	int alloc_len = XPS_MIN_MAP_ALLOC;
>  	int i, pos;
>  
> +	BUILD_BUG_ON(XPS_MIN_MAP_ALLOC == 0);
> +
>  	for (pos = 0; map && pos < map->len; pos++) {
>  		if (map->queues[pos] != index)
>  			continue;
> 

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From - Thu Nov 08 21:37:58 2018
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From: Eric Dumazet <eric.dumazet@gmail.com>
Newsgroups: gmane.linux.network,gmane.linux.ports.parisc
Subject: Re: CONFIG_XPS depends on L1_CACHE_BYTES being greater than
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On Fri, 2015-10-23 at 23:08 +0200, Helge Deller wrote:

> Can you then maybe give me an Acked-by or signed-off for the patch below?
> It further adds a compile-time check to avoid that XPS_MIN_MAP_ALLOC
> gets calculated to zero on any architecture - otherwise no queues would
> be allocated. 
> 
> In addition I would like to push it for v4.3 then through my parisc-tree
> (after keeping it in for-next for 1-2 days), together with the patch
> which reduces L1_CACHE_BYTES to 16 on parisc.
> Would that be OK too? 

Sure !

Acked-by: Eric Dumazet <edumazet@google.com>



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Subject: Re: CONFIG_XPS depends on L1_CACHE_BYTES being greater than
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To: Helge Deller <deller@gmx.de>,
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On 10/23/2015 02:08 PM, Helge Deller wrote:
> * Eric Dumazet <eric.dumazet@gmail.com>:
>> On Fri, 2015-10-23 at 21:25 +0200, Helge Deller wrote:
>>
>>> Then, how about simply changing it to twice of L1_CACHE_BYTES ?
>>>
>>> #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) / sizeof(u16))
>>
>>
>> Seems good to me.
>
> Great!
>
> Can you then maybe give me an Acked-by or signed-off for the patch below?
> It further adds a compile-time check to avoid that XPS_MIN_MAP_ALLOC
> gets calculated to zero on any architecture - otherwise no queues would
> be allocated.
>
> In addition I would like to push it for v4.3 then through my parisc-tree
> (after keeping it in for-next for 1-2 days), together with the patch
> which reduces L1_CACHE_BYTES to 16 on parisc.
> Would that be OK too?
>
> Thanks!
> Helge
>
>
> [PATCH] net/xps: Increase initial number of xps queues
>
> Increase the number of initial allocated xps queues, so that the initial record
> allocates twice the size of L1_CACHE_BYTES bytes.
>
> This change is needed to copy with architectures where L1_CACHE_BYTES is
> defined to equal or less than 16 bytes.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index 2d15e38..d152788 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -718,7 +718,7 @@ struct xps_map {
>   	u16 queues[0];
>   };
>   #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * sizeof(u16)))
> -#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))	\
> +#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) \
>       / sizeof(u16))
>
>   /*
> diff --git a/net/core/dev.c b/net/core/dev.c
> index 6bb6470..f6d6dd1 100644
> --- a/net/core/dev.c
> +++ b/net/core/dev.c
> @@ -1972,6 +1972,8 @@ static struct xps_map *expand_xps_map(struct xps_map *map,
>   	int alloc_len = XPS_MIN_MAP_ALLOC;
>   	int i, pos;
>
> +	BUILD_BUG_ON(XPS_MIN_MAP_ALLOC == 0);
> +
>   	for (pos = 0; map && pos < map->len; pos++) {
>   		if (map->queues[pos] != index)
>   			continue;
>
>

Rather then leaving a potential bug you could probably rewrite the macro 
so that it will give you at least 1.

All you need to do is something like the following
#define XPS_MIN_MAP_ALLOC \
	((L1_CACHE_ALIGN(offsetof(struct xps_map, queue[1])) - \
	  sizeof(struct xps_map)) / sizeof(u16))

That should give you at least an XPS_MIN_MAP_ALLOC of 1.

- Alex
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From: Tom Herbert <tom@herbertland.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network
Subject: Re: CONFIG_XPS depends on L1_CACHE_BYTES being greater than
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Cc: Tom Herbert <therbert@google.com>,
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On Fri, Oct 23, 2015 at 12:21 PM, Helge Deller <deller@gmx.de> wrote:
> On 22.10.2015 23:37, Tom Herbert wrote:
>> On Thu, Oct 22, 2015 at 1:00 PM, Helge Deller <deller@gmx.de> wrote:
>>> Hi Tom & David,
>>>
>>> I've queued-up a patch for the parisc architecture which reduces L1=
_CACHE_BYTES from 32 to 16:
>>>   https://patchwork.kernel.org/patch/7399291/
>>>
>>> But this change will break the kernel build like this:
>>>
>>> In file included from net/core/dev.c:92:0:
>>> net/core/dev.c: In function =E2=80=98expand_xps_map=E2=80=99:
>>> include/linux/netdevice.h:721:27: warning: overflow in implicit con=
stant conversion [-Woverflow]
>>>    #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_m=
ap)) \
>>> net/core/dev.c:1972:18: note: in expansion of macro =E2=80=98XPS_MI=
N_MAP_ALLOC=E2=80=99
>>>    int alloc_len =3D XPS_MIN_MAP_ALLOC;
>>>
>>> Do you see an easy way to fix this ?
>>>
>> How about
>>
>>  #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - ((sizeof(struct xps_ma=
p)
>> % L1_CACHE_BYTES)) \
>
> The full line would then be:
> #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - (sizeof(struct xps_map) =
% L1_CACHE_BYTES)) / sizeof(u16))
>
> The only problem I see with this is, that XPS_MIN_MAP_ALLOC might bec=
ome zero.
> In that case the call to kzalloc_node() in expand_xps_map() doesn't a=
llocate any memory for the queues.
>
I believe this wouldn't ever be zero (add 1 in to avoid result is 1 /
2 possibility):

#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES + 1 - (sizeof(struct
xps_map) % L1_CACHE_BYTES)) / sizeof(u16))

Tom

> Helge
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network
Subject: Re: CONFIG_XPS depends on L1_CACHE_BYTES being greater than
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On 24.10.2015 00:00, Alexander Duyck wrote:
> On 10/23/2015 02:08 PM, Helge Deller wrote:
>> * Eric Dumazet <eric.dumazet@gmail.com>:
>>> On Fri, 2015-10-23 at 21:25 +0200, Helge Deller wrote:
>>>
>>>> Then, how about simply changing it to twice of L1_CACHE_BYTES ?
>>>>
>>>> #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) / sizeof(u16))
>>>
>>>
>>> Seems good to me.
>>
>> Great!
>>
>> Can you then maybe give me an Acked-by or signed-off for the patch below?
>> It further adds a compile-time check to avoid that XPS_MIN_MAP_ALLOC
>> gets calculated to zero on any architecture - otherwise no queues would
>> be allocated.
>>
>> In addition I would like to push it for v4.3 then through my parisc-tree
>> (after keeping it in for-next for 1-2 days), together with the patch
>> which reduces L1_CACHE_BYTES to 16 on parisc.
>> Would that be OK too?
>>
>> Thanks!
>> Helge
>>
>>
>> [PATCH] net/xps: Increase initial number of xps queues
>>
>> Increase the number of initial allocated xps queues, so that the initial record
>> allocates twice the size of L1_CACHE_BYTES bytes.
>>
>> This change is needed to copy with architectures where L1_CACHE_BYTES is
>> defined to equal or less than 16 bytes.
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
>> index 2d15e38..d152788 100644
>> --- a/include/linux/netdevice.h
>> +++ b/include/linux/netdevice.h
>> @@ -718,7 +718,7 @@ struct xps_map {
>>       u16 queues[0];
>>   };
>>   #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * sizeof(u16)))
>> -#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))    \
>> +#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) \
>>       / sizeof(u16))
>>
>>   /*
>> diff --git a/net/core/dev.c b/net/core/dev.c
>> index 6bb6470..f6d6dd1 100644
>> --- a/net/core/dev.c
>> +++ b/net/core/dev.c
>> @@ -1972,6 +1972,8 @@ static struct xps_map *expand_xps_map(struct xps_map *map,
>>       int alloc_len = XPS_MIN_MAP_ALLOC;
>>       int i, pos;
>>
>> +    BUILD_BUG_ON(XPS_MIN_MAP_ALLOC == 0);
>> +
>>       for (pos = 0; map && pos < map->len; pos++) {
>>           if (map->queues[pos] != index)
>>               continue;
>>
>>
> 
> Rather then leaving a potential bug you could probably rewrite the macro so that it will give you at least 1.
> 
> All you need to do is something like the following
> #define XPS_MIN_MAP_ALLOC \
>     ((L1_CACHE_ALIGN(offsetof(struct xps_map, queue[1])) - \
>       sizeof(struct xps_map)) / sizeof(u16))
> 
> That should give you at least an XPS_MIN_MAP_ALLOC of 1.

Yes, good idea!
What makes me wonder though (because I have no idea about the XPS code/layer):
How likely is it, that more than 1 (e.g. minimum "X") queues are needed? 
E.g. if a typical system needs at least 3 queues, then doesn't it make sense to allocate
at least 3 initially by using queue[3] in your proposed patch above ?
What would "X" be then?

Helge
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From - Thu Nov 08 21:37:58 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.network
Subject: Re: CONFIG_XPS depends on L1_CACHE_BYTES being greater than
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Cc: Tom Herbert <therbert@google.com>,
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To: Helge Deller <deller@gmx.de>,
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On 10/23/2015 03:17 PM, Helge Deller wrote:
> On 24.10.2015 00:00, Alexander Duyck wrote:
>> On 10/23/2015 02:08 PM, Helge Deller wrote:
>>> * Eric Dumazet <eric.dumazet@gmail.com>:
>>>> On Fri, 2015-10-23 at 21:25 +0200, Helge Deller wrote:
>>>>
>>>>> Then, how about simply changing it to twice of L1_CACHE_BYTES ?
>>>>>
>>>>> #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) / sizeof(u16))
>>>>
>>>>
>>>> Seems good to me.
>>>
>>> Great!
>>>
>>> Can you then maybe give me an Acked-by or signed-off for the patch below?
>>> It further adds a compile-time check to avoid that XPS_MIN_MAP_ALLOC
>>> gets calculated to zero on any architecture - otherwise no queues would
>>> be allocated.
>>>
>>> In addition I would like to push it for v4.3 then through my parisc-tree
>>> (after keeping it in for-next for 1-2 days), together with the patch
>>> which reduces L1_CACHE_BYTES to 16 on parisc.
>>> Would that be OK too?
>>>
>>> Thanks!
>>> Helge
>>>
>>>
>>> [PATCH] net/xps: Increase initial number of xps queues
>>>
>>> Increase the number of initial allocated xps queues, so that the initial record
>>> allocates twice the size of L1_CACHE_BYTES bytes.
>>>
>>> This change is needed to copy with architectures where L1_CACHE_BYTES is
>>> defined to equal or less than 16 bytes.
>>>
>>> Signed-off-by: Helge Deller <deller@gmx.de>
>>>
>>> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
>>> index 2d15e38..d152788 100644
>>> --- a/include/linux/netdevice.h
>>> +++ b/include/linux/netdevice.h
>>> @@ -718,7 +718,7 @@ struct xps_map {
>>>        u16 queues[0];
>>>    };
>>>    #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * sizeof(u16)))
>>> -#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))    \
>>> +#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) \
>>>        / sizeof(u16))
>>>
>>>    /*
>>> diff --git a/net/core/dev.c b/net/core/dev.c
>>> index 6bb6470..f6d6dd1 100644
>>> --- a/net/core/dev.c
>>> +++ b/net/core/dev.c
>>> @@ -1972,6 +1972,8 @@ static struct xps_map *expand_xps_map(struct xps_map *map,
>>>        int alloc_len = XPS_MIN_MAP_ALLOC;
>>>        int i, pos;
>>>
>>> +    BUILD_BUG_ON(XPS_MIN_MAP_ALLOC == 0);
>>> +
>>>        for (pos = 0; map && pos < map->len; pos++) {
>>>            if (map->queues[pos] != index)
>>>                continue;
>>>
>>>
>>
>> Rather then leaving a potential bug you could probably rewrite the macro so that it will give you at least 1.
>>
>> All you need to do is something like the following
>> #define XPS_MIN_MAP_ALLOC \
>>      ((L1_CACHE_ALIGN(offsetof(struct xps_map, queue[1])) - \
>>        sizeof(struct xps_map)) / sizeof(u16))
>>
>> That should give you at least an XPS_MIN_MAP_ALLOC of 1.
>
> Yes, good idea!
> What makes me wonder though (because I have no idea about the XPS code/layer):
> How likely is it, that more than 1 (e.g. minimum "X") queues are needed?
> E.g. if a typical system needs at least 3 queues, then doesn't it make sense to allocate
> at least 3 initially by using queue[3] in your proposed patch above ?
> What would "X" be then?

The question I would have is in how many cases it it likely that 
somebody would enable this feature and point a given CPU at more than 
one queue.  I know the Intel drivers that make use of XPS tend to do a 
1:1 mapping for their ATR feature.  I would think if anything most CPUs 
would probably be mapped many:1, but you probably won't have all that 
many cases where it is 1:many or many:many.

I'd say starting with at least 1 should be fine.  Worst case scenario is 
we have to make a couple more calls to expand_xps_map which will likely 
occur as a slow path and infrequent event anyway.

- Alex

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* Alexander Duyck <alexander.duyck@gmail.com>:
> On 10/23/2015 03:17 PM, Helge Deller wrote:
> >On 24.10.2015 00:00, Alexander Duyck wrote:
> >>On 10/23/2015 02:08 PM, Helge Deller wrote:
> >>>* Eric Dumazet <eric.dumazet@gmail.com>:
> >>>>On Fri, 2015-10-23 at 21:25 +0200, Helge Deller wrote:
> >>>>
> >>>>>Then, how about simply changing it to twice of L1_CACHE_BYTES ?
> >>>>>
> >>>>>#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) / sizeof(u16))
> >>>>
> >>>>
> >>>>Seems good to me.
> >>>
> >>>Great!
> >>>
> >>>Can you then maybe give me an Acked-by or signed-off for the patch below?
> >>>It further adds a compile-time check to avoid that XPS_MIN_MAP_ALLOC
> >>>gets calculated to zero on any architecture - otherwise no queues would
> >>>be allocated.
> >>>
> >>>In addition I would like to push it for v4.3 then through my parisc-tree
> >>>(after keeping it in for-next for 1-2 days), together with the patch
> >>>which reduces L1_CACHE_BYTES to 16 on parisc.
> >>>Would that be OK too?
> >>>
> >>>Thanks!
> >>>Helge
> >>>
> >>>
> >>>[PATCH] net/xps: Increase initial number of xps queues
> >>>
> >>>Increase the number of initial allocated xps queues, so that the initial record
> >>>allocates twice the size of L1_CACHE_BYTES bytes.
> >>>
> >>>This change is needed to copy with architectures where L1_CACHE_BYTES is
> >>>defined to equal or less than 16 bytes.
> >>>
> >>>Signed-off-by: Helge Deller <deller@gmx.de>
> >>>
> >>>diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> >>>index 2d15e38..d152788 100644
> >>>--- a/include/linux/netdevice.h
> >>>+++ b/include/linux/netdevice.h
> >>>@@ -718,7 +718,7 @@ struct xps_map {
> >>>       u16 queues[0];
> >>>   };
> >>>   #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * sizeof(u16)))
> >>>-#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))    \
> >>>+#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) \
> >>>       / sizeof(u16))
> >>>
> >>>   /*
> >>>diff --git a/net/core/dev.c b/net/core/dev.c
> >>>index 6bb6470..f6d6dd1 100644
> >>>--- a/net/core/dev.c
> >>>+++ b/net/core/dev.c
> >>>@@ -1972,6 +1972,8 @@ static struct xps_map *expand_xps_map(struct xps_map *map,
> >>>       int alloc_len = XPS_MIN_MAP_ALLOC;
> >>>       int i, pos;
> >>>
> >>>+    BUILD_BUG_ON(XPS_MIN_MAP_ALLOC == 0);
> >>>+
> >>>       for (pos = 0; map && pos < map->len; pos++) {
> >>>           if (map->queues[pos] != index)
> >>>               continue;
> >>>
> >>>
> >>
> >>Rather then leaving a potential bug you could probably rewrite the macro so that it will give you at least 1.
> >>
> >>All you need to do is something like the following
> >>#define XPS_MIN_MAP_ALLOC \
> >>     ((L1_CACHE_ALIGN(offsetof(struct xps_map, queue[1])) - \
> >>       sizeof(struct xps_map)) / sizeof(u16))
> >>
> >>That should give you at least an XPS_MIN_MAP_ALLOC of 1.
> >
> >Yes, good idea!
> >
> >What makes me wonder though (because I have no idea about the XPS code/layer):
> >How likely is it, that more than 1 (e.g. minimum "X") queues are needed?
> >E.g. if a typical system needs at least 3 queues, then doesn't it make sense to allocate
> >at least 3 initially by using queue[3] in your proposed patch above ?
> >What would "X" be then?
> 
> The question I would have is in how many cases it it likely that somebody
> would enable this feature and point a given CPU at more than one queue.  I
> know the Intel drivers that make use of XPS tend to do a 1:1 mapping for
> their ATR feature.  I would think if anything most CPUs would probably be
> mapped many:1, but you probably won't have all that many cases where it is
> 1:many or many:many.
> 
> I'd say starting with at least 1 should be fine.  Worst case scenario is we
> have to make a couple more calls to expand_xps_map which will likely occur
> as a slow path and infrequent event anyway.

Ok, can I get then the signed-off or acked-by from you for this patch?

Thanks,
Helge


[PATCH] net/xps: Fix calculation of initial number of xps queues

The existing code breaks on architectures where the L1 cache size
(L1_CACHE_BYTES) is smaller or equal the size of struct xps_map.

The new code ensures that we get at minimum one initial xps queue, or
even more as long as it fits into the next multiple of L1_CACHE_SIZE.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2d15e38..2212c82 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -718,8 +718,8 @@ struct xps_map {
 	u16 queues[0];
 };
 #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * sizeof(u16)))
-#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))	\
-    / sizeof(u16))
+#define XPS_MIN_MAP_ALLOC ((L1_CACHE_ALIGN(offsetof(struct xps_map, queues[1])) \
+       - sizeof(struct xps_map)) / sizeof(u16))
 
 /*
  * This structure holds all XPS maps for device.  Maps are indexed by CPU.
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Subject: Re: CONFIG_XPS depends on L1_CACHE_BYTES being greater than
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Cc: Eric Dumazet <eric.dumazet@gmail.com>,
	linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>,
	Tom Herbert <therbert@google.com>,
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To: Helge Deller <deller@gmx.de>
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On 10/24/2015 07:43 AM, Helge Deller wrote:
> * Alexander Duyck <alexander.duyck@gmail.com>:
>> On 10/23/2015 03:17 PM, Helge Deller wrote:
>>> On 24.10.2015 00:00, Alexander Duyck wrote:
>>>> On 10/23/2015 02:08 PM, Helge Deller wrote:
>>>>> * Eric Dumazet <eric.dumazet@gmail.com>:
>>>>>> On Fri, 2015-10-23 at 21:25 +0200, Helge Deller wrote:
>>>>>>
>>>>>>> Then, how about simply changing it to twice of L1_CACHE_BYTES ?
>>>>>>>
>>>>>>> #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) / sizeof(u16))
>>>>>>
>>>>>>
>>>>>> Seems good to me.
>>>>>
>>>>> Great!
>>>>>
>>>>> Can you then maybe give me an Acked-by or signed-off for the patch below?
>>>>> It further adds a compile-time check to avoid that XPS_MIN_MAP_ALLOC
>>>>> gets calculated to zero on any architecture - otherwise no queues would
>>>>> be allocated.
>>>>>
>>>>> In addition I would like to push it for v4.3 then through my parisc-tree
>>>>> (after keeping it in for-next for 1-2 days), together with the patch
>>>>> which reduces L1_CACHE_BYTES to 16 on parisc.
>>>>> Would that be OK too?
>>>>>
>>>>> Thanks!
>>>>> Helge
>>>>>
>>>>>
>>>>> [PATCH] net/xps: Increase initial number of xps queues
>>>>>
>>>>> Increase the number of initial allocated xps queues, so that the initial record
>>>>> allocates twice the size of L1_CACHE_BYTES bytes.
>>>>>
>>>>> This change is needed to copy with architectures where L1_CACHE_BYTES is
>>>>> defined to equal or less than 16 bytes.
>>>>>
>>>>> Signed-off-by: Helge Deller <deller@gmx.de>
>>>>>
>>>>> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
>>>>> index 2d15e38..d152788 100644
>>>>> --- a/include/linux/netdevice.h
>>>>> +++ b/include/linux/netdevice.h
>>>>> @@ -718,7 +718,7 @@ struct xps_map {
>>>>>        u16 queues[0];
>>>>>    };
>>>>>    #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * sizeof(u16)))
>>>>> -#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))    \
>>>>> +#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES * 2 - sizeof(struct xps_map)) \
>>>>>        / sizeof(u16))
>>>>>
>>>>>    /*
>>>>> diff --git a/net/core/dev.c b/net/core/dev.c
>>>>> index 6bb6470..f6d6dd1 100644
>>>>> --- a/net/core/dev.c
>>>>> +++ b/net/core/dev.c
>>>>> @@ -1972,6 +1972,8 @@ static struct xps_map *expand_xps_map(struct xps_map *map,
>>>>>        int alloc_len = XPS_MIN_MAP_ALLOC;
>>>>>        int i, pos;
>>>>>
>>>>> +    BUILD_BUG_ON(XPS_MIN_MAP_ALLOC == 0);
>>>>> +
>>>>>        for (pos = 0; map && pos < map->len; pos++) {
>>>>>            if (map->queues[pos] != index)
>>>>>                continue;
>>>>>
>>>>>
>>>>
>>>> Rather then leaving a potential bug you could probably rewrite the macro so that it will give you at least 1.
>>>>
>>>> All you need to do is something like the following
>>>> #define XPS_MIN_MAP_ALLOC \
>>>>      ((L1_CACHE_ALIGN(offsetof(struct xps_map, queue[1])) - \
>>>>        sizeof(struct xps_map)) / sizeof(u16))
>>>>
>>>> That should give you at least an XPS_MIN_MAP_ALLOC of 1.
>>>
>>> Yes, good idea!
>>>
>>> What makes me wonder though (because I have no idea about the XPS code/layer):
>>> How likely is it, that more than 1 (e.g. minimum "X") queues are needed?
>>> E.g. if a typical system needs at least 3 queues, then doesn't it make sense to allocate
>>> at least 3 initially by using queue[3] in your proposed patch above ?
>>> What would "X" be then?
>>
>> The question I would have is in how many cases it it likely that somebody
>> would enable this feature and point a given CPU at more than one queue.  I
>> know the Intel drivers that make use of XPS tend to do a 1:1 mapping for
>> their ATR feature.  I would think if anything most CPUs would probably be
>> mapped many:1, but you probably won't have all that many cases where it is
>> 1:many or many:many.
>>
>> I'd say starting with at least 1 should be fine.  Worst case scenario is we
>> have to make a couple more calls to expand_xps_map which will likely occur
>> as a slow path and infrequent event anyway.
>
> Ok, can I get then the signed-off or acked-by from you for this patch?
>
> Thanks,
> Helge
>
>
> [PATCH] net/xps: Fix calculation of initial number of xps queues
>
> The existing code breaks on architectures where the L1 cache size
> (L1_CACHE_BYTES) is smaller or equal the size of struct xps_map.
>
> The new code ensures that we get at minimum one initial xps queue, or
> even more as long as it fits into the next multiple of L1_CACHE_SIZE.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index 2d15e38..2212c82 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -718,8 +718,8 @@ struct xps_map {
>   	u16 queues[0];
>   };
>   #define XPS_MAP_SIZE(_num) (sizeof(struct xps_map) + ((_num) * sizeof(u16)))
> -#define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))	\
> -    / sizeof(u16))
> +#define XPS_MIN_MAP_ALLOC ((L1_CACHE_ALIGN(offsetof(struct xps_map, queues[1])) \
> +       - sizeof(struct xps_map)) / sizeof(u16))
>
>   /*
>    * This structure holds all XPS maps for device.  Maps are indexed by CPU.
>

This looks good to me.

Acked-by: Alexander Duyck <aduyck@mirantis.com>
--
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From: Helge Deller <deller@gmx.de>
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Hi Linus,

please pull some patches for the parisc architecture for kernel v4.3 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.3-2

The most important change is that we reduce L1_CACHE_BYTES to 16 bytes, for
which a trivial patch for XPS in the network layer was needed.
Then we wire up the sys_membarrier and userfaultfd syscalls and added two other
small cleanups.

Thanks,
Helge

----------------------------------------------------------------
Axel Lin (1):
      parisc: serial/mux: Convert to uart_console_device instead of open-coded

Helge Deller (3):
      parisc: Wire up userfaultfd syscall
      parisc: reduce syslog debug output
      net/xps: Fix calculation of initial number of xps queues

John David Anglin (1):
      parisc: Change L1_CACHE_BYTES to 16

Mathieu Desnoyers (1):
      parisc: allocate sys_membarrier system call number

 arch/parisc/include/asm/cache.h       | 18 +++++-------------
 arch/parisc/include/uapi/asm/unistd.h |  4 +++-
 arch/parisc/kernel/syscall_table.S    |  2 ++
 drivers/parisc/lba_pci.c              | 12 ++++++------
 drivers/tty/serial/mux.c              |  9 ++-------
 include/linux/netdevice.h             |  4 ++--
 6 files changed, 20 insertions(+), 29 deletions(-)

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Drop hpux_stat64 struct from stat.h header file
Date: Wed, 28 Oct 2015 21:40:18 +0100
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The struct hpux_stat64 is not needed any longer since we dropped HP-UX
support in commit 04c1614 ("parisc: hpux - Drop support for HP-UX
binaries").

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/stat.h b/arch/parisc/include/uapi/asm/stat.h
index b606b36..3310d2a 100644
--- a/arch/parisc/include/uapi/asm/stat.h
+++ b/arch/parisc/include/uapi/asm/stat.h
@@ -36,37 +36,6 @@ struct stat {
 
 #define STAT_HAVE_NSEC
 
-struct hpux_stat64 {
-	unsigned int	st_dev;		/* dev_t is 32 bits on parisc */
-	unsigned int	st_ino;         /* 32 bits */
-	unsigned short	st_mode;	/* 16 bits */
-	unsigned short	st_nlink;	/* 16 bits */
-	unsigned short	st_reserved1;	/* old st_uid */
-	unsigned short	st_reserved2;	/* old st_gid */
-	unsigned int	st_rdev;
-	signed long long st_size;
-	signed int	st_atime;
-	unsigned int	st_spare1;
-	signed int	st_mtime;
-	unsigned int	st_spare2;
-	signed int	st_ctime;
-	unsigned int	st_spare3;
-	int		st_blksize;
-	unsigned long long st_blocks;
-	unsigned int	__unused1;	/* ACL stuff */
-	unsigned int	__unused2;	/* network */
-	unsigned int	__unused3;      /* network */
-	unsigned int	__unused4;	/* cnodes */
-	unsigned short	__unused5;	/* netsite */
-	short		st_fstype;
-	unsigned int	st_realdev;
-	unsigned short	st_basemode;
-	unsigned short	st_spareshort;
-	unsigned int	st_uid;
-	unsigned int	st_gid;
-	unsigned int	st_spare4[3];
-};

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix compat_semid64_ds struct
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Fix struct compat_semid64_ds to match our version of semid64_ds from
asm/sembuf.h. Basically the compat version did not take the
big-endianess into account.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 94710cf..0448a2c 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -206,10 +206,10 @@ struct compat_ipc64_perm {
 
 struct compat_semid64_ds {
 	struct compat_ipc64_perm sem_perm;
-	compat_time_t sem_otime;
 	unsigned int __unused1;
-	compat_time_t sem_ctime;
+	compat_time_t sem_otime;
 	unsigned int __unused2;
+	compat_time_t sem_ctime;
 	compat_ulong_t sem_nsems;
 	compat_ulong_t __unused3;
 	compat_ulong_t __unused4;
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix shmid64_ds to use __kernel_size_t
Date: Wed, 28 Oct 2015 23:21:08 +0100
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size_t is either 32 or 64bit. Make struct shmid64_ds clean for 32- and
64-bit userspace (even if we do not have a 64-bit userspace yet).

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/shmbuf.h b/arch/parisc/include/uapi/asm/shmbuf.h
index 8496c38..d48f67d 100644
--- a/arch/parisc/include/uapi/asm/shmbuf.h
+++ b/arch/parisc/include/uapi/asm/shmbuf.h
@@ -30,7 +30,7 @@ struct shmid64_ds {
 #if __BITS_PER_LONG != 64
 	unsigned int		__pad4;
 #endif
-	size_t			shm_segsz;	/* size of segment (bytes) */
+	__kernel_size_t		shm_segsz;	/* size of segment (bytes) */
 	__kernel_pid_t		shm_cpid;	/* pid of creator */
 	__kernel_pid_t		shm_lpid;	/* pid of last operator */
 	unsigned int		shm_nattch;	/* no. of current attaches */
--
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Subject: [PATCH] parisc: Fix struct ipc64_perm to use userspace-clean types
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The current implementation is just wrong. It should not use standard
types like uid_t which may be different if used with 32 or 64bit
userspace. Instead use the __kernel_* types which do not pollute
userspace.

This change fixes build errors like for the trinity debian package.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/ipcbuf.h b/arch/parisc/include/uapi/asm/ipcbuf.h
index bd956c4..53472bc4 100644
--- a/arch/parisc/include/uapi/asm/ipcbuf.h
+++ b/arch/parisc/include/uapi/asm/ipcbuf.h
@@ -1,6 +1,8 @@
 #ifndef __PARISC_IPCBUF_H__
 #define __PARISC_IPCBUF_H__
 
+#include <linux/posix_types.h>
+
 /*
  * The ipc64_perm structure for PA-RISC is almost identical to
  * kern_ipc_perm as we have always had 32-bit UIDs and GIDs in the kernel.
@@ -10,16 +12,17 @@
 
 struct ipc64_perm
 {
-	key_t           key;
-	uid_t           uid;
-	gid_t           gid;
-	uid_t           cuid;
-	gid_t           cgid;
-	unsigned short int	__pad1;
-	mode_t          mode;
+	__kernel_key_t		key;
+	__kernel_uid_t		uid;
+	__kernel_gid_t		gid;
+	__kernel_uid_t		cuid;
+	__kernel_gid_t		cgid;
+				/* pad if mode_t is u16: */
+	unsigned char		__pad1[4 - sizeof(__kernel_mode_t)];
+	__kernel_mode_t		mode;
 	unsigned short int	__pad2;
 	unsigned short int	seq;
-	unsigned int	__pad3;
+	unsigned int		__pad3;
 	unsigned long long int __unused1;
 	unsigned long long int __unused2;
 };
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Add build-time sanity checks for compat ipc struct
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Ensure that the size of various compat ipc structs are the same as of
the native kernel.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index c229427..f2ee988 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -23,6 +23,7 @@
 #include <linux/unistd.h>
 #include <linux/nodemask.h>	/* for node_online_map */
 #include <linux/pagemap.h>	/* for release_pages and page_cache_release */
+#include <linux/compat.h>
 
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
@@ -30,6 +31,7 @@
 #include <asm/pdc_chassis.h>
 #include <asm/mmzone.h>
 #include <asm/sections.h>
+#include <asm/msgbuf.h>
 
 extern int  data_start;
 extern void parisc_kernel_start(void);	/* Kernel entry point in head.S */
@@ -590,6 +592,14 @@ unsigned long pcxl_dma_start __read_mostly;
 
 void __init mem_init(void)
 {
+#ifdef CONFIG_COMPAT
+	/* Do sanity checks on compat structures */
+	BUILD_BUG_ON(sizeof(struct compat_ipc64_perm) != sizeof(struct ipc64_perm));
+	BUILD_BUG_ON(sizeof(struct compat_msqid64_ds) != sizeof(struct msqid64_ds));
+	BUILD_BUG_ON(sizeof(struct compat_semid64_ds) != sizeof(struct semid64_ds));
+	BUILD_BUG_ON(sizeof(struct compat_shmid64_ds) != sizeof(struct shmid64_ds));
+#endif
+
 	/* Do sanity checks on page table constants */
 	BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
 	BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));
--
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From - Thu Nov 08 21:37:59 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Add build-time sanity checks for compat ipc
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On 28.10.2015 23:30, Helge Deller wrote:
> Ensure that the size of various compat ipc structs are the same as of
> the native kernel.

I've pushed all of my patches (with modifications to what I sent earlier) to 
fix the IPC structs into the compat-patches branch of my git tree.
If someone wants to test, please pull from here:
 git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git compat-patches

It's based on the sources of kernel 3.18 but merges cleanly up to git head.

Helge
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On Sun, Oct 25, 2015 at 4:49 AM, Helge Deller <deller@gmx.de> wrote:
>
> please pull some patches for the parisc architecture for kernel v4.3 from:

So no way was I going to pull that for 4.3, and I delayed it to the
merge window.

However, even now that we're in the merge window, and I look at it again:

> The most important change is that we reduce L1_CACHE_BYTES to 16 bytes, for
> which a trivial patch for XPS in the network layer was needed.

I'd really want the network people involved with that change, and I'm
also wondering why you seem to want to re-define L1_CACHE_BYTES to
something that it isn't.

I doubt the PA-RISC L1 cacheline really is 16 bytes. So this seems to
be more of a hack around the fact that some data structures may be
over-aligned, and using that L1_CACHE_BYTES for aligning things that
really don't want to be that aligned. Maybe it casues less sharing,
but if it does so at the cost of excessive memory use, it's still
wrong.

But that in turn says to me "We should fix the *real* problem, rather
than hack around it by having PA-RISC lie about its L1 cache size".

Is there any particular over-alignment that you have determined to be
the real problem?

Also, just looking at other things, we currently do have openrisc that has

  #define L1_CACHE_BYTES 16

so presumably openrisc would have had an issue with that XPS thing,
and how XPS_MIN_MAP_ALLOC can go negative for a 16-byte case (well,
it's zero on 32-bit architectures).

David: the issue wrt XPS is this:

   #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))   \
       / sizeof(u16))

Comments?

               Linus
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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Tue, 3 Nov 2015 13:01:21 -0800

> David: the issue wrt XPS is this:
> 
>    #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))   \
>        / sizeof(u16))
> 
> Comments?

The PARISC folks did discuss this with us networking folks...

	http://marc.info/?t=144554413000001&r=1&w=2

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On Tue, Nov 3, 2015 at 1:33 PM, David Miller <davem@davemloft.net> wrote:
>
>> David: the issue wrt XPS is this:
>>
>>    #define XPS_MIN_MAP_ALLOC ((L1_CACHE_BYTES - sizeof(struct xps_map))   \
>>        / sizeof(u16))
>>
>> Comments?
>
> The PARISC folks did discuss this with us networking folks...
>
>         http://marc.info/?t=144554413000001&r=1&w=2

Ok. So that still leaves the "is it sane to lie about your
L1_CACHE_BYTES" question...

               Linus

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Hi Linus,

On 03.11.2015 22:01, Linus Torvalds wrote:
> On Sun, Oct 25, 2015 at 4:49 AM, Helge Deller <deller@gmx.de> wrote:
>>
>> please pull some patches for the parisc architecture for kernel v4.3 from:
> 
> So no way was I going to pull that for 4.3,

Yes, since you didn't pulled I assumed you saw some kind of problem with the patches.
Maybe it's even my fault, because I should have explained some more in the pull request,
e.g. that all patches were discussed with the various stakeholders, and e.g. that
I was late in sending this pull request, because I was waiting for some benchmark results.

> and I delayed it to the merge window.

Ok.
 
> However, even now that we're in the merge window, and I look at it again:
> 
>> The most important change is that we reduce L1_CACHE_BYTES to 16 bytes, for
>> which a trivial patch for XPS in the network layer was needed.
> 
> I'd really want the network people involved with that change, 

As David already answered, it was discussed with them:
http://marc.info/?t=144554413000001&r=1&w=2

> and I'm
> also wondering why you seem to want to re-define L1_CACHE_BYTES to
> something that it isn't.
> I doubt the PA-RISC L1 cacheline really is 16 bytes. 

Sadly it's nowhere clearly documented how big the L1 cacheline of parisc really is.

We are currently experimenting a lot with improving spinlocks on hppa,
that's why we play around with the L1 cache size setting.

In one of the mail threads (where I actually wanted to align the hashes
which we need to protect/simulate the atomic locks) James Bottomleys
gave a pretty good explanation of why it might be beneficial to 
modify L1_CACHE_BYTES for parisc:
 http://permalink.gmane.org/gmane.linux.ports.parisc/26040
The whole mail thread is here:
 http://thread.gmane.org/gmane.linux.ports.parisc/26000

> So this seems to
> be more of a hack around the fact that some data structures may be
> over-aligned, and using that L1_CACHE_BYTES for aligning things that
> really don't want to be that aligned. Maybe it casues less sharing,
> but if it does so at the cost of excessive memory use, it's still
> wrong.
> 
> But that in turn says to me "We should fix the *real* problem, rather
> than hack around it by having PA-RISC lie about its L1 cache size".
> 
> Is there any particular over-alignment that you have determined to be
> the real problem?

I was not very much concerned about any over-alignment, but about the
performance. Reducing L1_CACHE_BYTES gave a performance improvement
on parisc, most likely since we protect atomic accesses through our
atomic spinlocks anyway. 
 
> Also, just looking at other things, we currently do have openrisc that has
> 
>   #define L1_CACHE_BYTES 16
> 
> so presumably openrisc would have had an issue with that XPS thing,

and mn10300.

Helge

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On Tue, Nov 3, 2015 at 3:03 PM, Helge Deller <deller@gmx.de> wrote:
>
> Sadly it's nowhere clearly documented how big the L1 cacheline of parisc really is.

Wow.

Particularly that "it might actually be 16 bytes" from the thread
according to John David Anglin. I didn't expect anybody to really have
that small a line size any more.

> I was not very much concerned about any over-alignment, but about the
> performance. Reducing L1_CACHE_BYTES gave a performance improvement
> on parisc, most likely since we protect atomic accesses through our
> atomic spinlocks anyway.

Well, we do end up using L1_CACHE_BYTES to avoid false sharing in some
places, where it's not so much about atomic accesses, as just trying
to avoid having different CPU's step on each other when not needed. So
it's not necessarily about atomic accesses per se.

But if it's actually possible that the pa-risc L1 line size is really
just 16 bytes, I guess that objection to the patch goes away. My
automatic reaction was "that's not real, it's some odd workaround",
but if it is actually real...

                 Linus
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On 2015-11-03, at 6:25 PM, Linus Torvalds wrote:

> But if it's actually possible that the pa-risc L1 line size is really
> just 16 bytes, I guess that objection to the patch goes away. My
> automatic reaction was "that's not real, it's some odd workaround",
> but if it is actually real...

See page 10 in this document:
https://parisc.wiki.kernel.org/images-parisc/e/e9/PA-8700wp.pdf

It shows the PA-8700 L1 design.  James' comments and this paper are the
basis for this change.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Nov 3, 2015, at 3:03 PM, Helge Deller <deller@gmx.de> wrote:

> Sadly it's nowhere clearly documented how big the L1 cacheline of parisc really is.

To which particular PA-RISC processor are you referring?  It might not be the same on all processors.

If openpa.net is to be believed, then:

The 7100LC has 32 byte cache lines on the off-chip cache:

	http://www.openpa.net/pa-risc_processor_pa-7100lc.html

and the 8500 has "32 or 64 Byte cache line size", which may be referring to the on-chip caches:

	http://www.openpa.net/pa-risc_processor_pa-8500.html--
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On Nov 3, 2015, at 3:43 PM, Guy Harris <guy@alum.mit.edu> wrote:

> To which particular PA-RISC processor are you referring?  It might no=
t be the same on all processors.

Chapter 3 "Addressing and Access Control" of PA-RISC 2.0 Architecture:

	http://h21007.www2.hp.com/portal/download/files/unprot/parisc20/PA_3_a=
ddressing.pdf

says

	A consistent software view of cache operation requires that implementa=
tions never write a clean cache line back to memory. (A cache line can =
be 16, 32, or 64 bytes in length.) Clean means =E2=80=9Cnot stored into=
=E2=80=9D as opposed to =E2=80=9Cnot changed=E2=80=9D. Dirty means =E2=80=
=9Cstored into=E2=80=9D. A cache line which was stored into in such a w=
ay that it was unchanged is considered to be dirty.

so, architecturally, it can be 16, 32, or 64 bytes.

I'm not sure what

	When Linux says 'line size' it generally means the cache ownership lin=
e size: the minimum block the inter cpu coherence operates on.  Most of=
 the architectural evidence for PA systems suggests that this is 16

from the mail message cited means when it speaks of architectural evide=
nce; is that line size different from the line size in the PA-RISC 2.0 =
Architecture manual?  That line size presumably isn't the burst size:

	128 seems to be the cache burst fill size (the number of bytes that wi=
ll be pulled into the
cache by a usual operation touching any byte in the area).--
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On 2015-11-03, at 6:43 PM, Guy Harris wrote:

> 
> On Nov 3, 2015, at 3:03 PM, Helge Deller <deller@gmx.de> wrote:
> 
>> Sadly it's nowhere clearly documented how big the L1 cacheline of parisc really is.
> 
> To which particular PA-RISC processor are you referring?  It might not be the same on all processors.
> 
> If openpa.net is to be believed, then:
> 
> The 7100LC has 32 byte cache lines on the off-chip cache:
> 
> 	http://www.openpa.net/pa-risc_processor_pa-7100lc.html
> 
> and the 8500 has "32 or 64 Byte cache line size", which may be referring to the on-chip caches:
> 
> 	http://www.openpa.net/pa-risc_processor_pa-8500.html

Yes, this is correct but these numbers relate to the memory interface.  The PA8800 and PA8900 have 128 byte
memory interfaces.  These numbers are reported by firmware PDC calls.  This whole discussion started when I
suggested that we needed to bump L1_CACHE_BYTES to 128 bytes on PA8800 and PA8900 processors.

--
John David Anglin	dave.anglin@bell.net



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Subject: [PATCH v2 00/20] Fix handling of compat_siginfo_t
Date: Thu,  5 Nov 2015 00:50:19 +0000
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The current handling of compat_siginfo_t is a mess: each architecture has its
own implementation, all of which are incorrect in different ways. This patch
series replaces all of the arch-specific versions with a single generic one that
is guaranteed to produce the same results as a 32-bit kernel.

Most architectures are able to use the generic compat_siginfo_t, except x86 and
MIPS. MIPS uses a slightly different compat_siginfo_t structure for ABI reasons
but can still use the generic copy_siginfo_{to,from}_user32. x86 can't use the
generic versions because it needs special handling for __SI_CHLD for x32 tasks.

One issue that isn't resolved in this series is sending signals between a 32-bit
process and 64-bit process. Sending a si_int will work correctly, but a si_ptr
value will likely get corrupted due to the different layouts of the 32-bit and
64-bit siginfo_t structures.

signalfd_copyinfo was also modified to properly generate data for compat tasks.
In particular the ssi_ptr and ssi_data members need to be sign-extended to 64
bits rather than zero-extended, since that is the behavior in 32-bit kernels.

This series has been tested on x86_64 and arm64.

Changes since v1:
- Properly copy padding bytes and avoid leaking uninitialized data to userspace
- Fixed compile errors on mips and powerpc
- Fixed some compiler warnings
- Fixed some formatting issues

Amanieu d'Antras (20):
  compat: Add generic compat_siginfo_t
  compat: Add generic copy_siginfo_{to,from}_user32
  x86: Update compat_siginfo_t to be closer to the generic version
  x86: Rewrite copy_siginfo_{to,from}_user32
  mips: Clean up compat_siginfo_t
  mips: Use generic copy_siginfo_{to,from}_user32
  arm64: Use generic compat_siginfo_t
  arm64: Use generic copy_siginfo_{to,from}_user32
  parisc: Use generic compat_siginfo_t
  parsic: Use generic copy_siginfo_{to,from}_user32
  s390: Use generic compat_siginfo_t
  s390: Use generic copy_siginfo_{to,from}_user32
  powerpc: Use generic compat_siginfo_t
  powerpc: Use generic copy_siginfo_{to,from}_user32
  tile: Use generic compat_siginfo_t
  tile: Use generic copy_siginfo_{to,from}_user32
  sparc: Use generic compat_siginfo_t
  sparc: Use generic copy_siginfo_{to,from}_user32
  signalfd: Fix some issues in signalfd_copyinfo
  signal: Remove unnecessary zero-initialization of siginfo_t

 arch/arm64/include/asm/compat.h    |  59 --------
 arch/arm64/kernel/signal32.c       |  85 -----------
 arch/mips/include/asm/compat.h     |  63 ++++----
 arch/mips/kernel/signal32.c        |  62 --------
 arch/parisc/include/asm/compat.h   |  52 -------
 arch/parisc/kernel/signal32.c      | 102 -------------
 arch/powerpc/include/asm/compat.h  |  60 --------
 arch/powerpc/kernel/signal_32.c    |  72 +---------
 arch/s390/include/asm/compat.h     |  51 -------
 arch/s390/kernel/compat_signal.c   | 102 -------------
 arch/sparc/include/asm/compat.h    |  54 -------
 arch/sparc/kernel/signal32.c       |  69 ---------
 arch/tile/include/asm/compat.h     |  57 --------
 arch/tile/kernel/compat_signal.c   |  75 ----------
 arch/x86/include/asm/compat.h      |  39 +++--
 arch/x86/kernel/signal_compat.c    | 285 ++++++++++++++++++++++++++++---------
 fs/signalfd.c                      |  58 +++++---
 include/linux/compat.h             |  66 ++++++++-
 include/uapi/asm-generic/siginfo.h |   1 +
 kernel/compat.c                    | 224 +++++++++++++++++++++++++++++
 kernel/ptrace.c                    |   1 -
 kernel/signal.c                    |  16 ++-
 22 files changed, 615 insertions(+), 1038 deletions(-)

-- 
2.6.2


From - Thu Nov 08 21:38:00 2018
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Subject: [PATCH v2 02/20] compat: Add generic copy_siginfo_{to,from}_user32
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These routines try to match the behavior of native 32-bit kernels
as closely as possible. They will replace architecture-specific
versions that are missing support for some fields and have various
bugs that cause behavior to diverge from that of a 32-bit kernel.

The only problematic situation is when sending a si_ptr from a
32-bit process to a 64-bit process or vice-versa, but this has
never worked correctly in the past anyways.

One thing to note is that, because the size of the siginfo_t union
differs between 32-bit and 64-bit systems, we need to stash the
last 4 bytes of the union in the 4 bytes of padding between the
64-bit union and the initial 3 siginfo_t members.

Signed-off-by: Amanieu d'Antras <amanieu@gmail.com>
---
 arch/arm64/include/asm/compat.h    |   2 +
 arch/mips/include/asm/compat.h     |   2 +
 arch/parisc/include/asm/compat.h   |   2 +
 arch/powerpc/include/asm/compat.h  |   2 +
 arch/s390/include/asm/compat.h     |   2 +
 arch/sparc/include/asm/compat.h    |   2 +
 arch/tile/include/asm/compat.h     |   2 +
 arch/x86/include/asm/compat.h      |   2 +
 include/uapi/asm-generic/siginfo.h |   1 +
 kernel/compat.c                    | 224 +++++++++++++++++++++++++++++++++++++
 kernel/signal.c                    |  12 +-
 11 files changed, 248 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index ff4e294..5eae749 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -156,6 +156,8 @@ typedef union compat_sigval {
 } compat_sigval_t;
 
 #define HAVE_ARCH_COMPAT_SIGINFO_T
+#define HAVE_ARCH_COPY_SIGINFO_TO_USER32
+#define HAVE_ARCH_COPY_SIGINFO_FROM_USER32
 
 typedef struct compat_siginfo {
 	int si_signo;
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 5f1f816..1e5ba38 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -131,6 +131,8 @@ typedef union compat_sigval {
 } compat_sigval_t;
 
 #define HAVE_ARCH_COMPAT_SIGINFO_T
+#define HAVE_ARCH_COPY_SIGINFO_TO_USER32
+#define HAVE_ARCH_COPY_SIGINFO_FROM_USER32
 #define SI_PAD_SIZE32	(128/sizeof(int) - 3)
 
 typedef struct compat_siginfo {
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index e0be05f..46a0a8a 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -135,6 +135,8 @@ typedef union compat_sigval {
 } compat_sigval_t;
 
 #define HAVE_ARCH_COMPAT_SIGINFO_T
+#define HAVE_ARCH_COPY_SIGINFO_TO_USER32
+#define HAVE_ARCH_COPY_SIGINFO_FROM_USER32
 
 typedef struct compat_siginfo {
 	int si_signo;
diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
index 75b25ff..cdc8638 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -125,6 +125,8 @@ typedef union compat_sigval {
 } compat_sigval_t;
 
 #define HAVE_ARCH_COMPAT_SIGINFO_T
+#define HAVE_ARCH_COPY_SIGINFO_TO_USER32
+#define HAVE_ARCH_COPY_SIGINFO_FROM_USER32
 #define SI_PAD_SIZE32	(128/sizeof(int) - 3)
 
 typedef struct compat_siginfo {
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index ac73ac7..497af62 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -193,6 +193,8 @@ typedef union compat_sigval {
 } compat_sigval_t;
 
 #define HAVE_ARCH_COMPAT_SIGINFO_T
+#define HAVE_ARCH_COPY_SIGINFO_TO_USER32
+#define HAVE_ARCH_COPY_SIGINFO_FROM_USER32
 
 typedef struct compat_siginfo {
 	int	si_signo;
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index 0c80f59..9357014 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -154,6 +154,8 @@ typedef union compat_sigval {
 } compat_sigval_t;
 
 #define HAVE_ARCH_COMPAT_SIGINFO_T
+#define HAVE_ARCH_COPY_SIGINFO_TO_USER32
+#define HAVE_ARCH_COPY_SIGINFO_FROM_USER32
 #define SI_PAD_SIZE32	(128/sizeof(int) - 3)
 
 typedef struct compat_siginfo {
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index f9bba8d..e0c61da 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -116,6 +116,8 @@ typedef union compat_sigval {
 } compat_sigval_t;
 
 #define HAVE_ARCH_COMPAT_SIGINFO_T
+#define HAVE_ARCH_COPY_SIGINFO_TO_USER32
+#define HAVE_ARCH_COPY_SIGINFO_FROM_USER32
 #define COMPAT_SI_PAD_SIZE	(128/sizeof(int) - 3)
 
 typedef struct compat_siginfo {
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 69176b4..c6b58b1 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -131,6 +131,8 @@ typedef union compat_sigval {
 } compat_sigval_t;
 
 #define HAVE_ARCH_COMPAT_SIGINFO_T
+#define HAVE_ARCH_COPY_SIGINFO_TO_USER32
+#define HAVE_ARCH_COPY_SIGINFO_FROM_USER32
 
 typedef struct compat_siginfo {
 	int si_signo;
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index 1e35520..cc8d95e 100644
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -49,6 +49,7 @@ typedef struct siginfo {
 	int si_signo;
 	int si_errno;
 	int si_code;
+	int _pad2[__ARCH_SI_PREAMBLE_SIZE / sizeof(int) - 3];
 
 	union {
 		int _pad[SI_PAD_SIZE];
diff --git a/kernel/compat.c b/kernel/compat.c
index 333d364..644da25 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -1174,3 +1174,227 @@ void __user *compat_alloc_user_space(unsigned long len)
 	return ptr;
 }
 EXPORT_SYMBOL_GPL(compat_alloc_user_space);
+
+#ifndef HAVE_ARCH_COPY_SIGINFO_TO_USER32
+int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
+{
+	int err, si_code;
+
+	if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
+		return -EFAULT;
+
+	/*
+	 * Get the user-visible si_code by hiding the top 16 bits if this is a
+	 * kernel-generated signal.
+	 */
+	si_code = from->si_code < 0 ? from->si_code : (short)from->si_code;
+
+	/*
+	 * If you change siginfo_t structure, please be sure that
+	 * all these functions are fixed accordingly:
+	 * copy_siginfo_to_user
+	 * copy_siginfo_to_user32
+	 * copy_siginfo_from_user32
+	 * signalfd_copyinfo
+	 * They should never copy any pad contained in the structure
+	 * to avoid security leaks, but must copy the generic
+	 * 3 ints plus the relevant union member.
+	 */
+	err = __put_user(from->si_signo, &to->si_signo);
+	err |= __put_user(from->si_errno, &to->si_errno);
+	err |= __put_user(si_code, &to->si_code);
+	if (from->si_code < 0) {
+		/*
+		 * Copy the tail bytes of the union from the padding, see the
+		 * comment in copy_siginfo_from_user32. Note that this padding
+		 * is always initialized when si_code < 0.
+		 */
+		BUILD_BUG_ON(sizeof(to->_sifields._pad) !=
+			sizeof(from->_sifields._pad) + sizeof(from->_pad2));
+		err |= __copy_to_user(to->_sifields._pad, from->_sifields._pad,
+			sizeof(from->_sifields._pad)) ? -EFAULT : 0;
+		err |= __copy_to_user(to->_sifields._pad + SI_PAD_SIZE,
+			from->_pad2, sizeof(from->_pad2)) ? -EFAULT : 0;
+		return err;
+	}
+	switch (from->si_code & __SI_MASK) {
+	case __SI_KILL:
+		err |= __put_user(from->si_pid, &to->si_pid);
+		err |= __put_user(from->si_uid, &to->si_uid);
+		break;
+	case __SI_TIMER:
+		err |= __put_user(from->si_tid, &to->si_tid);
+		err |= __put_user(from->si_overrun, &to->si_overrun);
+		/*
+		 * Get the sigval from si_int, which matches the convention
+		 * used in get_compat_sigevent.
+		 */
+		err |= __put_user(from->si_int, &to->si_int);
+		break;
+	case __SI_POLL:
+		err |= __put_user(from->si_band, &to->si_band);
+		err |= __put_user(from->si_fd, &to->si_fd);
+		break;
+	case __SI_FAULT:
+		err |= __put_user(ptr_to_compat(from->si_addr), &to->si_addr);
+#ifdef __ARCH_SI_TRAPNO
+		err |= __put_user(from->si_trapno, &to->si_trapno);
+#endif
+#ifdef BUS_MCEERR_AO
+		/*
+		 * Other callers might not initialize the si_lsb field,
+		 * so check explicitly for the right codes here.
+		 */
+		if (from->si_signo == SIGBUS &&
+		    (from->si_code == BUS_MCEERR_AR ||
+		     from->si_code == BUS_MCEERR_AO))
+			err |= __put_user(from->si_addr_lsb, &to->si_addr_lsb);
+#endif
+#ifdef SEGV_BNDERR
+		if (from->si_signo == SIGSEGV && from->si_code == SEGV_BNDERR) {
+			err |= __put_user(ptr_to_compat(from->si_lower),
+				&to->si_lower);
+			err |= __put_user(ptr_to_compat(from->si_upper),
+				&to->si_upper);
+		}
+#endif
+		break;
+	case __SI_CHLD:
+		err |= __put_user(from->si_pid, &to->si_pid);
+		err |= __put_user(from->si_uid, &to->si_uid);
+		err |= __put_user(from->si_status, &to->si_status);
+		err |= __put_user(from->si_utime, &to->si_utime);
+		err |= __put_user(from->si_stime, &to->si_stime);
+		break;
+	case __SI_RT: /* This is not generated by the kernel as of now. */
+	case __SI_MESGQ: /* But this is */
+		err |= __put_user(from->si_pid, &to->si_pid);
+		err |= __put_user(from->si_uid, &to->si_uid);
+		/*
+		 * Get the sigval from si_int, which matches the convention
+		 * used in get_compat_sigevent.
+		 */
+		err |= __put_user(from->si_int, &to->si_int);
+		break;
+#ifdef __ARCH_SIGSYS
+	case __SI_SYS:
+		err |= __put_user(ptr_to_compat(from->si_call_addr),
+			&to->si_call_addr);
+		err |= __put_user(from->si_syscall, &to->si_syscall);
+		err |= __put_user(from->si_arch, &to->si_arch);
+		break;
+#endif
+	default: /* this is just in case for now ... */
+		err |= __put_user(from->si_pid, &to->si_pid);
+		err |= __put_user(from->si_uid, &to->si_uid);
+		break;
+	}
+	return err;
+}
+#endif
+
+#ifndef HAVE_ARCH_COPY_SIGINFO_FROM_USER32
+int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
+{
+	int err;
+	compat_uptr_t ptr32;
+
+	if (!access_ok(VERIFY_READ, from, sizeof(compat_siginfo_t)))
+		return -EFAULT;
+
+	/*
+	 * If you change siginfo_t structure, please be sure that
+	 * all these functions are fixed accordingly:
+	 * copy_siginfo_to_user
+	 * copy_siginfo_to_user32
+	 * copy_siginfo_from_user32
+	 * signalfd_copyinfo
+	 * They should never copy any pad contained in the structure
+	 * to avoid security leaks, but must copy the generic
+	 * 3 ints plus the relevant union member.
+	 */
+	err = __get_user(to->si_signo, &from->si_signo);
+	err |= __get_user(to->si_errno, &from->si_errno);
+	err |= __get_user(to->si_code, &from->si_code);
+	if (to->si_code < 0) {
+		/*
+		 * Note that the compat union may be larger than the normal one
+		 * due to alignment. We work around this by copying any data
+		 * that doesn't fit in the normal union into the padding before
+		 * the union.
+		 */
+		BUILD_BUG_ON(sizeof(to->_sifields._pad) + sizeof(to->_pad2) !=
+			sizeof(from->_sifields._pad));
+		err |= __copy_from_user(to->_sifields._pad,
+			from->_sifields._pad,
+			sizeof(to->_sifields._pad)) ? -EFAULT : 0;
+		err |= __copy_from_user(to->_pad2,
+			from->_sifields._pad + SI_PAD_SIZE, sizeof(to->_pad2))
+			? -EFAULT : 0;
+		return err;
+	}
+	switch (to->si_code & __SI_MASK) {
+	case __SI_KILL:
+		err |= __get_user(to->si_pid, &from->si_pid);
+		err |= __get_user(to->si_uid, &from->si_uid);
+		break;
+	case __SI_TIMER:
+		err |= __get_user(to->si_tid, &from->si_tid);
+		err |= __get_user(to->si_overrun, &from->si_overrun);
+		/*
+		 * Put the sigval in si_int, which matches the convention
+		 * used in get_compat_sigevent.
+		 */
+		to->si_ptr = NULL; /* Avoid uninitialized bits in the union */
+		err |= __get_user(to->si_int, &from->si_int);
+		break;
+	case __SI_POLL:
+		err |= __get_user(to->si_band, &from->si_band);
+		err |= __get_user(to->si_fd, &from->si_fd);
+		break;
+	case __SI_FAULT:
+		err |= __get_user(ptr32, &from->si_addr);
+		to->si_addr = compat_ptr(ptr32);
+#ifdef __ARCH_SI_TRAPNO
+		err |= __get_user(to->si_trapno, &from->si_trapno);
+#endif
+		err |= __get_user(to->si_addr_lsb, &from->si_addr_lsb);
+		err |= __get_user(ptr32, &from->si_lower);
+		to->si_lower = compat_ptr(ptr32);
+		err |= __get_user(ptr32, &from->si_upper);
+		to->si_upper = compat_ptr(ptr32);
+		break;
+	case __SI_CHLD:
+		err |= __get_user(to->si_pid, &from->si_pid);
+		err |= __get_user(to->si_uid, &from->si_uid);
+		err |= __get_user(to->si_status, &from->si_status);
+		err |= __get_user(to->si_utime, &from->si_utime);
+		err |= __get_user(to->si_stime, &from->si_stime);
+		break;
+	case __SI_RT: /* This is not generated by the kernel as of now. */
+	case __SI_MESGQ: /* But this is */
+		err |= __get_user(to->si_pid, &from->si_pid);
+		err |= __get_user(to->si_uid, &from->si_uid);
+		/*
+		 * Put the sigval in si_int, which matches the convention
+		 * used in get_compat_sigevent.
+		 */
+		to->si_ptr = NULL; /* Avoid uninitialized bits in the union */
+		err |= __get_user(to->si_int, &from->si_int);
+		break;
+#ifdef __ARCH_SIGSYS
+	case __SI_SYS:
+		err |= __get_user(ptr32, &from->si_call_addr);
+		to->si_call_addr = compat_ptr(ptr32);
+		err |= __get_user(to->si_syscall, &from->si_syscall);
+		err |= __get_user(to->si_arch, &from->si_arch);
+		break;
+#endif
+	default: /* this is just in case for now ... */
+		err |= __get_user(to->si_pid, &from->si_pid);
+		err |= __get_user(to->si_uid, &from->si_uid);
+		break;
+	}
+	return err;
+}
+#endif
diff --git a/kernel/signal.c b/kernel/signal.c
index 0f6bbbe..873e8e2 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2713,11 +2713,13 @@ int copy_siginfo_to_user(siginfo_t __user *to, const siginfo_t *from)
 		return __copy_to_user(to, from, sizeof(siginfo_t))
 			? -EFAULT : 0;
 	/*
-	 * If you change siginfo_t structure, please be sure
-	 * this code is fixed accordingly.
-	 * Please remember to update the signalfd_copyinfo() function
-	 * inside fs/signalfd.c too, in case siginfo_t changes.
-	 * It should never copy any pad contained in the structure
+	 * If you change siginfo_t structure, please be sure that
+	 * all these functions are fixed accordingly:
+	 * copy_siginfo_to_user
+	 * copy_siginfo_to_user32
+	 * copy_siginfo_from_user32
+	 * signalfd_copyinfo
+	 * They should never copy any pad contained in the structure
 	 * to avoid security leaks, but must copy the generic
 	 * 3 ints plus the relevant union member.
 	 */
-- 
2.6.2

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From: Amanieu d'Antras <amanieu@gmail.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc
Subject: [PATCH v2 01/20] compat: Add generic compat_siginfo_t
Date: Thu,  5 Nov 2015 00:50:20 +0000
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Cc: Oleg Nesterov <oleg@redhat.com>,
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        Will Deacon <will.deacon@arm.com>,
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This matches the normal siginfo_t as closely as possible, unlike
some architecture-specific versions which are missing some fields.

Signed-off-by: Amanieu d'Antras <amanieu@gmail.com>
---
 arch/arm64/include/asm/compat.h   |  2 ++
 arch/mips/include/asm/compat.h    |  1 +
 arch/parisc/include/asm/compat.h  |  2 ++
 arch/powerpc/include/asm/compat.h |  1 +
 arch/s390/include/asm/compat.h    |  2 ++
 arch/sparc/include/asm/compat.h   |  1 +
 arch/tile/include/asm/compat.h    |  1 +
 arch/x86/include/asm/compat.h     |  2 ++
 include/linux/compat.h            | 66 ++++++++++++++++++++++++++++++++++++++-
 9 files changed, 77 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index 7fbed69..ff4e294 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -155,6 +155,8 @@ typedef union compat_sigval {
 	compat_uptr_t	sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
+
 typedef struct compat_siginfo {
 	int si_signo;
 	int si_errno;
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index c4bd54a..5f1f816 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -130,6 +130,7 @@ typedef union compat_sigval {
 	compat_uptr_t	sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
 #define SI_PAD_SIZE32	(128/sizeof(int) - 3)
 
 typedef struct compat_siginfo {
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 94710cf..e0be05f 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -134,6 +134,8 @@ typedef union compat_sigval {
 	compat_uptr_t	sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
+
 typedef struct compat_siginfo {
 	int si_signo;
 	int si_errno;
diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
index 4f2df58..75b25ff 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -124,6 +124,7 @@ typedef union compat_sigval {
 	compat_uptr_t	sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
 #define SI_PAD_SIZE32	(128/sizeof(int) - 3)
 
 typedef struct compat_siginfo {
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index d350ed9..ac73ac7 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -192,6 +192,8 @@ typedef union compat_sigval {
 	compat_uptr_t	sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
+
 typedef struct compat_siginfo {
 	int	si_signo;
 	int	si_errno;
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index 830502fe..0c80f59 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -153,6 +153,7 @@ typedef union compat_sigval {
 	compat_uptr_t	sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
 #define SI_PAD_SIZE32	(128/sizeof(int) - 3)
 
 typedef struct compat_siginfo {
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index c14e36f..f9bba8d 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -115,6 +115,7 @@ typedef union compat_sigval {
 	compat_uptr_t	sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
 #define COMPAT_SI_PAD_SIZE	(128/sizeof(int) - 3)
 
 typedef struct compat_siginfo {
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index acdee09..69176b4 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -130,6 +130,8 @@ typedef union compat_sigval {
 	compat_uptr_t	sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
+
 typedef struct compat_siginfo {
 	int si_signo;
 	int si_errno;
diff --git a/include/linux/compat.h b/include/linux/compat.h
index a76c917..e51574c 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -196,7 +196,71 @@ struct compat_rusage {
 extern int put_compat_rusage(const struct rusage *,
 			     struct compat_rusage __user *);
 
-struct compat_siginfo;
+#ifndef HAVE_ARCH_COMPAT_SIGINFO_T
+typedef struct compat_siginfo {
+	int si_signo;
+	int si_errno;
+	int si_code;
+
+	union {
+		int _pad[128 / sizeof(int) - 3];
+
+		/* kill() */
+		struct {
+			compat_pid_t _pid;	/* sender's pid */
+			compat_uid_t _uid;	/* sender's uid */
+		} _kill;
+
+		/* POSIX.1b timers */
+		struct {
+			compat_timer_t _tid;	/* timer id */
+			int _overrun;		/* overrun count */
+			compat_sigval_t _sigval;	/* same as below */
+		} _timer;
+
+		/* POSIX.1b signals */
+		struct {
+			compat_pid_t _pid;	/* sender's pid */
+			compat_uid_t _uid;	/* sender's uid */
+			compat_sigval_t _sigval;
+		} _rt;
+
+		/* SIGCHLD */
+		struct {
+			compat_pid_t _pid;	/* which child */
+			compat_uid_t _uid;	/* sender's uid */
+			int _status;		/* exit code */
+			compat_clock_t _utime;
+			compat_clock_t _stime;
+		} _sigchld;
+
+		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
+		struct {
+			compat_uptr_t _addr;	/* faulting insn/memory ref. */
+#ifdef __ARCH_SI_TRAPNO
+			int _trapno;	/* TRAP # which caused the signal */
+#endif
+			short _addr_lsb; /* LSB of the reported address */
+			struct {
+				compat_uptr_t _lower;
+				compat_uptr_t _upper;
+			} _addr_bnd;
+		} _sigfault;
+
+		/* SIGPOLL */
+		struct {
+			compat_long_t _band; /* POLL_IN, POLL_OUT, POLL_MSG */
+			int _fd;
+		} _sigpoll;
+
+		struct {
+			compat_uptr_t _call_addr; /* calling insn */
+			int _syscall;	/* triggering system call number */
+			compat_uint_t _arch;	/* AUDIT_ARCH_* of syscall */
+		} _sigsys;
+	} _sifields;
+} compat_siginfo_t;
+#endif
 
 extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
 		struct compat_siginfo __user *, int,
-- 
2.6.2




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X-Mozilla-Keys:                                                                                 
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From: Amanieu d'Antras <amanieu@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v2 10/20] parsic: Use generic copy_siginfo_{to,from}_user32
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	Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org
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Signed-off-by: Amanieu d'Antras <amanieu@gmail.com>
---
 arch/parisc/include/asm/compat.h |   3 --
 arch/parisc/kernel/signal32.c    | 102 ---------------------------------------
 2 files changed, 105 deletions(-)

diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 6c80ae2..b56188b 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -134,9 +134,6 @@ typedef union compat_sigval {
 	compat_uptr_t	sival_ptr;
 } compat_sigval_t;
 
-#define HAVE_ARCH_COPY_SIGINFO_TO_USER32
-#define HAVE_ARCH_COPY_SIGINFO_FROM_USER32
-
 #define COMPAT_OFF_T_MAX	0x7fffffff
 #define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL
 
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index 984abbe..635012f 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -273,105 +273,3 @@ setup_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __
 
 	return err;
 }
-
-int
-copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from)
-{
-	compat_uptr_t addr;
-	int err;
-
-	if (!access_ok(VERIFY_READ, from, sizeof(compat_siginfo_t)))
-		return -EFAULT;
-
-	err = __get_user(to->si_signo, &from->si_signo);
-	err |= __get_user(to->si_errno, &from->si_errno);
-	err |= __get_user(to->si_code, &from->si_code);
-
-	if (to->si_code < 0)
-		err |= __copy_from_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
-	else {
-		switch (to->si_code >> 16) {
-		      case __SI_CHLD >> 16:
-			err |= __get_user(to->si_utime, &from->si_utime);
-			err |= __get_user(to->si_stime, &from->si_stime);
-			err |= __get_user(to->si_status, &from->si_status);
-		      default:
-			err |= __get_user(to->si_pid, &from->si_pid);
-			err |= __get_user(to->si_uid, &from->si_uid);
-			break;
-		      case __SI_FAULT >> 16:
-			err |= __get_user(addr, &from->si_addr);
-			to->si_addr = compat_ptr(addr);
-			break;
-		      case __SI_POLL >> 16:
-			err |= __get_user(to->si_band, &from->si_band);
-			err |= __get_user(to->si_fd, &from->si_fd);
-			break;
-		      case __SI_RT >> 16: /* This is not generated by the kernel as of now.  */
-		      case __SI_MESGQ >> 16:
-			err |= __get_user(to->si_pid, &from->si_pid);
-			err |= __get_user(to->si_uid, &from->si_uid);
-			err |= __get_user(to->si_int, &from->si_int);
-			break;
-		}
-	}
-	return err;
-}
-
-int
-copy_siginfo_to_user32 (compat_siginfo_t __user *to, const siginfo_t *from)
-{
-	compat_uptr_t addr;
-	compat_int_t val;
-	int err;
-
-	if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
-		return -EFAULT;
-
-	/* If you change siginfo_t structure, please be sure
-	   this code is fixed accordingly.
-	   It should never copy any pad contained in the structure
-	   to avoid security leaks, but must copy the generic
-	   3 ints plus the relevant union member.
-	   This routine must convert siginfo from 64bit to 32bit as well
-	   at the same time.  */
-	err = __put_user(from->si_signo, &to->si_signo);
-	err |= __put_user(from->si_errno, &to->si_errno);
-	err |= __put_user((short)from->si_code, &to->si_code);
-	if (from->si_code < 0)
-		err |= __copy_to_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
-	else {
-		switch (from->si_code >> 16) {
-		case __SI_CHLD >> 16:
-			err |= __put_user(from->si_utime, &to->si_utime);
-			err |= __put_user(from->si_stime, &to->si_stime);
-			err |= __put_user(from->si_status, &to->si_status);
-		default:
-			err |= __put_user(from->si_pid, &to->si_pid);
-			err |= __put_user(from->si_uid, &to->si_uid);
-			break;
-		case __SI_FAULT >> 16:
-			addr = ptr_to_compat(from->si_addr);
-			err |= __put_user(addr, &to->si_addr);
-			break;
-		case __SI_POLL >> 16:
-			err |= __put_user(from->si_band, &to->si_band);
-			err |= __put_user(from->si_fd, &to->si_fd);
-			break;
-		case __SI_TIMER >> 16:
-			err |= __put_user(from->si_tid, &to->si_tid);
-			err |= __put_user(from->si_overrun, &to->si_overrun);
-			val = (compat_int_t)from->si_int;
-			err |= __put_user(val, &to->si_int);
-			break;
-		case __SI_RT >> 16:	/* Not generated by the kernel as of now.  */
-		case __SI_MESGQ >> 16:
-			err |= __put_user(from->si_uid, &to->si_uid);
-			err |= __put_user(from->si_pid, &to->si_pid);
-			val = (compat_int_t)from->si_int;
-			err |= __put_user(val, &to->si_int);
-			break;
-		}
-	}
-	return err;
-}
-- 
2.6.2


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X-Mozilla-Keys:                                                                                 
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From: Amanieu d'Antras <amanieu@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v2 09/20] parisc: Use generic compat_siginfo_t
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Signed-off-by: Amanieu d'Antras <amanieu@gmail.com>
---
 arch/parisc/include/asm/compat.h | 53 ----------------------------------------
 1 file changed, 53 deletions(-)

diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 46a0a8a..6c80ae2 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -134,62 +134,9 @@ typedef union compat_sigval {
 	compat_uptr_t	sival_ptr;
 } compat_sigval_t;
 
-#define HAVE_ARCH_COMPAT_SIGINFO_T
 #define HAVE_ARCH_COPY_SIGINFO_TO_USER32
 #define HAVE_ARCH_COPY_SIGINFO_FROM_USER32
 
-typedef struct compat_siginfo {
-	int si_signo;
-	int si_errno;
-	int si_code;
-
-	union {
-		int _pad[128/sizeof(int) - 3];
-
-		/* kill() */
-		struct {
-			unsigned int _pid;      /* sender's pid */
-			unsigned int _uid;      /* sender's uid */
-		} _kill;
-
-		/* POSIX.1b timers */
-		struct {
-			compat_timer_t _tid;            /* timer id */
-			int _overrun;           /* overrun count */
-			char _pad[sizeof(unsigned int) - sizeof(int)];
-			compat_sigval_t _sigval;        /* same as below */
-			int _sys_private;       /* not to be passed to user */
-		} _timer;
-
-		/* POSIX.1b signals */
-		struct {
-			unsigned int _pid;      /* sender's pid */
-			unsigned int _uid;      /* sender's uid */
-			compat_sigval_t _sigval;
-		} _rt;
-
-		/* SIGCHLD */
-		struct {
-			unsigned int _pid;      /* which child */
-			unsigned int _uid;      /* sender's uid */
-			int _status;            /* exit code */
-			compat_clock_t _utime;
-			compat_clock_t _stime;
-		} _sigchld;
-
-		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
-		struct {
-			unsigned int _addr;     /* faulting insn/memory ref. */
-		} _sigfault;
-
-		/* SIGPOLL */
-		struct {
-			int _band;      /* POLL_IN, POLL_OUT, POLL_MSG */
-			int _fd;
-		} _sigpoll;
-	} _sifields;
-} compat_siginfo_t;
-
 #define COMPAT_OFF_T_MAX	0x7fffffff
 #define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL
 
-- 
2.6.2


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X-Mozilla-Keys:                                                                                 

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From: Geert Uytterhoeven <geert@linux-m68k.org>
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On Wed, Nov 4, 2015 at 12:03 AM, Helge Deller <deller@gmx.de> wrote:
>> Also, just looking at other things, we currently do have openrisc that has
>>
>>   #define L1_CACHE_BYTES 16
>>
>> so presumably openrisc would have had an issue with that XPS thing,
>
> and mn10300.

And several other architectures that define L1_CACHE_BYTES using
L1_CACHE_SHIFT.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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From: Andy Lutomirski <luto@amacapital.net>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.file-systems,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: Re: [PATCH v2 00/20] Fix handling of compat_siginfo_t
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Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Oleg Nesterov <oleg@redhat.com>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
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To: "Amanieu d'Antras" <amanieu@gmail.com>
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On Wed, Nov 4, 2015 at 4:50 PM, Amanieu d'Antras <amanieu@gmail.com> wrote:
> One issue that isn't resolved in this series is sending signals between a 32-bit
> process and 64-bit process. Sending a si_int will work correctly, but a si_ptr
> value will likely get corrupted due to the different layouts of the 32-bit and
> 64-bit siginfo_t structures.

This is so screwed up it's not even funny.

A 64-bit big-endian compat calls rt_sigqueueinfo.  It passes in (among
other things) a sigval_t.  The kernel can choose to interpret it as a
pointer (call it p) or an integer (call it i).  Then (unsigned long)p
= (i<<32) | [something].  If the number was an integer to begin with
*and* user code zeroed out the mess first, then [something] will be 0.
Regardless, p != i unless they're both zero.

If the result gets delivered to a signalfd, then it's plausible that
everything could work.  If it gets delivered to a 64-bit siginfo, then
all is well because it's in exactly the same screwed up state it was
in when the signal gets sent.

If, however, it's delivered to a compat task, wtf is the kernel
supposed to do?  We're effectively supposed to convert a 64-bit
sigval_t to a 32-bit sigval_t.  On a little-endian architecture, we
can fudge it because it doesn't really matter whether we consider the
pointer or the int to be authoritative.  I think that, on big-endian,
we're screwed.

BTW, x86 has its own set of screwups here.  Somehow cr2 and error_code
ended up as part of ucontext instead of siginfo, which makes
absolutely no sense to me and bloats task_struct.

--Andy
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fixes and cleanups in kernel uapi header files
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This patch fixes some bugs and partly cleans up the parisc uapi header
files to what glibc defined:
- compat_semid64_ds was wrong and did not take the endianess into
  account
- ipc64_perm exported userspace types which broke building userspace
  packages on debian (e.g. trinity)
- ipc64_perm needs to use a 32bit mode_t on 64bit kernel
- msqid64_ds and semid64_ds needs unsigned longs for various struct members
- shmid64_ds exported size_t instead of __kernel_size_t

And finally add some compile-time checks for the sizes of those structs
to avoid future breakage.

Runtime-tested with the Linux Test Project (LTP) testsuite.

Cc: <stable@vger.kernel.org> # 3.18+
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 94710cf..0448a2c 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -206,10 +206,10 @@ struct compat_ipc64_perm {
 
 struct compat_semid64_ds {
 	struct compat_ipc64_perm sem_perm;
-	compat_time_t sem_otime;
 	unsigned int __unused1;
-	compat_time_t sem_ctime;
+	compat_time_t sem_otime;
 	unsigned int __unused2;
+	compat_time_t sem_ctime;
 	compat_ulong_t sem_nsems;
 	compat_ulong_t __unused3;
 	compat_ulong_t __unused4;
diff --git a/arch/parisc/include/uapi/asm/ipcbuf.h b/arch/parisc/include/uapi/asm/ipcbuf.h
index bd956c4..790c411 100644
--- a/arch/parisc/include/uapi/asm/ipcbuf.h
+++ b/arch/parisc/include/uapi/asm/ipcbuf.h
@@ -1,6 +1,9 @@
 #ifndef __PARISC_IPCBUF_H__
 #define __PARISC_IPCBUF_H__
 
+#include <asm/bitsperlong.h>
+#include <linux/posix_types.h>
+
 /*
  * The ipc64_perm structure for PA-RISC is almost identical to
  * kern_ipc_perm as we have always had 32-bit UIDs and GIDs in the kernel.
@@ -10,16 +13,18 @@
 
 struct ipc64_perm
 {
-	key_t           key;
-	uid_t           uid;
-	gid_t           gid;
-	uid_t           cuid;
-	gid_t           cgid;
+	__kernel_key_t		key;
+	__kernel_uid_t		uid;
+	__kernel_gid_t		gid;
+	__kernel_uid_t		cuid;
+	__kernel_gid_t		cgid;
+#if __BITS_PER_LONG != 64
 	unsigned short int	__pad1;
-	mode_t          mode;
+#endif
+	__kernel_mode_t		mode;
 	unsigned short int	__pad2;
 	unsigned short int	seq;
-	unsigned int	__pad3;
+	unsigned int		__pad3;
 	unsigned long long int __unused1;
 	unsigned long long int __unused2;
 };
diff --git a/arch/parisc/include/uapi/asm/msgbuf.h b/arch/parisc/include/uapi/asm/msgbuf.h
index 3421389..2e83ac7 100644
--- a/arch/parisc/include/uapi/asm/msgbuf.h
+++ b/arch/parisc/include/uapi/asm/msgbuf.h
@@ -27,13 +27,13 @@ struct msqid64_ds {
 	unsigned int   __pad3;
 #endif
 	__kernel_time_t msg_ctime;	/* last change time */
-	unsigned int  msg_cbytes;	/* current number of bytes on queue */
-	unsigned int  msg_qnum;	/* number of messages in queue */
-	unsigned int  msg_qbytes;	/* max number of bytes on queue */
+	unsigned long msg_cbytes;	/* current number of bytes on queue */
+	unsigned long msg_qnum;		/* number of messages in queue */
+	unsigned long msg_qbytes;	/* max number of bytes on queue */
 	__kernel_pid_t msg_lspid;	/* pid of last msgsnd */
 	__kernel_pid_t msg_lrpid;	/* last receive pid */
-	unsigned int  __unused1;
-	unsigned int  __unused2;
+	unsigned long __unused1;
+	unsigned long __unused2;
 };
 
 #endif /* _PARISC_MSGBUF_H */
diff --git a/arch/parisc/include/uapi/asm/posix_types.h b/arch/parisc/include/uapi/asm/posix_types.h
index b934425..f3b5f70 100644
--- a/arch/parisc/include/uapi/asm/posix_types.h
+++ b/arch/parisc/include/uapi/asm/posix_types.h
@@ -7,8 +7,10 @@
  * assume GCC is being used.
  */
 
+#ifndef __LP64__
 typedef unsigned short		__kernel_mode_t;
 #define __kernel_mode_t __kernel_mode_t
+#endif
 
 typedef unsigned short		__kernel_ipc_pid_t;
 #define __kernel_ipc_pid_t __kernel_ipc_pid_t
diff --git a/arch/parisc/include/uapi/asm/sembuf.h b/arch/parisc/include/uapi/asm/sembuf.h
index f01d89e..c20971b 100644
--- a/arch/parisc/include/uapi/asm/sembuf.h
+++ b/arch/parisc/include/uapi/asm/sembuf.h
@@ -23,9 +23,9 @@ struct semid64_ds {
 	unsigned int	__pad2;
 #endif
 	__kernel_time_t	sem_ctime;		/* last change time */
-	unsigned int	sem_nsems;		/* no. of semaphores in array */
-	unsigned int	__unused1;
-	unsigned int	__unused2;
+	unsigned long 	sem_nsems;		/* no. of semaphores in array */
+	unsigned long	__unused1;
+	unsigned long	__unused2;
 };
 
 #endif /* _PARISC_SEMBUF_H */
diff --git a/arch/parisc/include/uapi/asm/shmbuf.h b/arch/parisc/include/uapi/asm/shmbuf.h
index 8496c38..750e13e 100644
--- a/arch/parisc/include/uapi/asm/shmbuf.h
+++ b/arch/parisc/include/uapi/asm/shmbuf.h
@@ -30,12 +30,12 @@ struct shmid64_ds {
 #if __BITS_PER_LONG != 64
 	unsigned int		__pad4;
 #endif
-	size_t			shm_segsz;	/* size of segment (bytes) */
+	__kernel_size_t		shm_segsz;	/* size of segment (bytes) */
 	__kernel_pid_t		shm_cpid;	/* pid of creator */
 	__kernel_pid_t		shm_lpid;	/* pid of last operator */
-	unsigned int		shm_nattch;	/* no. of current attaches */
-	unsigned int		__unused1;
-	unsigned int		__unused2;
+	unsigned long		shm_nattch;	/* no. of current attaches */
+	unsigned long		__unused1;
+	unsigned long		__unused2;
 };
 
 struct shminfo64 {
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 0bef864..2fef816 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -23,6 +23,7 @@
 #include <linux/unistd.h>
 #include <linux/nodemask.h>	/* for node_online_map */
 #include <linux/pagemap.h>	/* for release_pages and page_cache_release */
+#include <linux/compat.h>
 
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
@@ -30,6 +31,7 @@
 #include <asm/pdc_chassis.h>
 #include <asm/mmzone.h>
 #include <asm/sections.h>
+#include <asm/msgbuf.h>
 
 extern int  data_start;
 extern void parisc_kernel_start(void);	/* Kernel entry point in head.S */
@@ -590,6 +592,20 @@ unsigned long pcxl_dma_start __read_mostly;
 
 void __init mem_init(void)
 {
+	/* Do sanity checks on IPC (compat) structures */
+	BUILD_BUG_ON(sizeof(struct ipc64_perm) != 48);
+#ifndef CONFIG_64BIT
+	BUILD_BUG_ON(sizeof(struct semid64_ds) != 80);
+	BUILD_BUG_ON(sizeof(struct msqid64_ds) != 104);
+	BUILD_BUG_ON(sizeof(struct shmid64_ds) != 104);
+#endif
+#ifdef CONFIG_COMPAT
+	BUILD_BUG_ON(sizeof(struct compat_ipc64_perm) != sizeof(struct ipc64_perm));
+	BUILD_BUG_ON(sizeof(struct compat_semid64_ds) != 80);
+	BUILD_BUG_ON(sizeof(struct compat_msqid64_ds) != 104);
+	BUILD_BUG_ON(sizeof(struct compat_shmid64_ds) != 104);
+#endif
+
 	/* Do sanity checks on page table constants */
 	BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
 	BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));
--
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From - Thu Nov 08 21:38:00 2018
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From: Oleg Nesterov <oleg@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.file-systems,gmane.linux.kernel.cross-arch,gmane.linux.kernel.api
Subject: Re: [PATCH v2 00/20] Fix handling of compat_siginfo_t
Date: Mon, 9 Nov 2015 16:12:04 +0100
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Cc: "Amanieu d'Antras" <amanieu@gmail.com>,
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To: Andy Lutomirski <luto@amacapital.net>
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On 11/07, Andy Lutomirski wrote:
>
> On Wed, Nov 4, 2015 at 4:50 PM, Amanieu d'Antras <amanieu@gmail.com> wrote:
> > One issue that isn't resolved in this series is sending signals between a 32-bit
> > process and 64-bit process. Sending a si_int will work correctly, but a si_ptr
> > value will likely get corrupted due to the different layouts of the 32-bit and
> > 64-bit siginfo_t structures.
>
> This is so screwed up it's not even funny.

Agreed,

> A 64-bit big-endian compat calls rt_sigqueueinfo.  It passes in (among
> other things) a sigval_t.  The kernel can choose to interpret it

I always thought that the kernel should not interpret it at all. And indeed,
copy_siginfo_to_user() does

	if (from->si_code < 0)
		return __copy_to_user(to, from, sizeof(siginfo_t))

probably copy_siginfo_to_user32() should do something similar, at least
it should not truncate ->si_code it it is less than zero.

Not sure what signalfd_copyinfo() should do.

But perhaps I was wrong, I failed to find man sigqueueinfo, and man
sigqueue() documents that it passes sigval_t.


> BTW, x86 has its own set of screwups here.  Somehow cr2 and error_code
> ended up as part of ucontext instead of siginfo, which makes
> absolutely no sense to me and bloats task_struct.

Yes, and probably ->ip should have been the part of siginfo too. Say,
if you get SIGBUS you can't trust sc->ip if another signal was dequeued
before SIGBUS, in this case sc->ip will point to the handler of that
another signal. That is why we have SYNCHRONOUS_MASK and it helps, but
still this doesn't look nice.

Oleg.

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From - Thu Nov 08 21:38:01 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [GIT PULL] parisc architecture updates for v4.4
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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	James Bottomley <James.Bottomley@HansenPartnership.com>,
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Hi Linus,

please pull latest patches for the parisc architecture for kernel v4.4 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.4-1

We have two patches in here:

1. The parisc uapi headers have been screwed up since quite some time. This
patch fixes some bugs (e.g. endianess not respected in compat_semid64_ds) and
cleans them up (e.g. uid_t was used instead of __kernel_uid_t) so that they can
be used by userspace again. This patch has been reviewed by Arnd Bergmann and
is scheduled for stable kernel series.

2. Drop the hpux_stat64 struct from stat.h, we do not support HP-UX binaries
since kernel 4.0.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (2):
      parisc: Drop hpux_stat64 struct from stat.h header file
      parisc: Fixes and cleanups in kernel uapi header files

 arch/parisc/include/asm/compat.h           |  4 ++--
 arch/parisc/include/uapi/asm/ipcbuf.h      | 19 +++++++++++-------
 arch/parisc/include/uapi/asm/msgbuf.h      | 10 +++++-----
 arch/parisc/include/uapi/asm/posix_types.h |  2 ++
 arch/parisc/include/uapi/asm/sembuf.h      |  6 +++---
 arch/parisc/include/uapi/asm/shmbuf.h      |  8 ++++----
 arch/parisc/include/uapi/asm/stat.h        | 31 ------------------------------
 arch/parisc/mm/init.c                      | 16 +++++++++++++++
 8 files changed, 44 insertions(+), 52 deletions(-)

From - Thu Nov 08 21:38:01 2018
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.sparc,gmane.linux.kernel.iommu
Subject: [PATCH 01/16] dma-mapping: make the generic coherent dma mmap implementation optional
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To: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
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We have a couple architectures that do not want to support this code,
so add another Kconfig symbol that disables the code similar to what we
do for the nommu case.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/Kconfig               | 3 +++
 drivers/base/dma-mapping.c | 4 ++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 4e949e5..e47995f 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -564,4 +564,7 @@ config OLD_SIGACTION
 config COMPAT_OLD_SIGACTION
 	bool
 
+config ARCH_NO_COHERENT_DMA_MMAP
+	bool
+
 source "kernel/gcov/Kconfig"
diff --git a/drivers/base/dma-mapping.c b/drivers/base/dma-mapping.c
index d95c597..381e39d 100644
--- a/drivers/base/dma-mapping.c
+++ b/drivers/base/dma-mapping.c
@@ -247,7 +247,7 @@ int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
 		    void *cpu_addr, dma_addr_t dma_addr, size_t size)
 {
 	int ret = -ENXIO;
-#ifdef CONFIG_MMU
+#if defined(CONFIG_MMU) && !defined(CONFIG_ARCH_NO_COHERENT_DMA_MMAP)
 	unsigned long user_count = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
 	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	unsigned long pfn = page_to_pfn(virt_to_page(cpu_addr));
@@ -264,7 +264,7 @@ int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
 				      user_count << PAGE_SHIFT,
 				      vma->vm_page_prot);
 	}
-#endif	/* CONFIG_MMU */
+#endif	/* CONFIG_MMU && !CONFIG_ARCH_NO_COHERENT_DMA_MMAP */
 
 	return ret;
 }
-- 
1.9.1


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Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/avr32/Kconfig                   |   1 +
 arch/avr32/include/asm/dma-mapping.h | 342 +----------------------------------
 arch/avr32/mm/dma-coherent.c         | 115 ++++++++----
 3 files changed, 85 insertions(+), 373 deletions(-)

diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index b6878eb..b545384 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -17,6 +17,7 @@ config AVR32
 	select GENERIC_CLOCKEVENTS
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_RELA
+	select HAVE_DMA_ATTRS
 	help
 	  AVR32 is a high-performance 32-bit RISC microprocessor core,
 	  designed for cost-sensitive embedded applications, with particular
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index ae7ac92..0239ca8 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -1,350 +1,16 @@
 #ifndef __ASM_AVR32_DMA_MAPPING_H
 #define __ASM_AVR32_DMA_MAPPING_H
 
-#include <linux/mm.h>
-#include <linux/device.h>
-#include <linux/scatterlist.h>
-#include <asm/processor.h>
-#include <asm/cacheflush.h>
-#include <asm/io.h>
-
 extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	int direction);
 
-/*
- * Return whether the given device DMA address mask can be supported
- * properly.  For example, if your device can only drive the low 24-bits
- * during bus mastering, then you would pass 0x00ffffff as the mask
- * to this function.
- */
-static inline int dma_supported(struct device *dev, u64 mask)
-{
-	/* Fix when needed. I really don't know of any limitations */
-	return 1;
-}
-
-static inline int dma_set_mask(struct device *dev, u64 dma_mask)
-{
-	if (!dev->dma_mask || !dma_supported(dev, dma_mask))
-		return -EIO;
-
-	*dev->dma_mask = dma_mask;
-	return 0;
-}
-
-/*
- * dma_map_single can't fail as it is implemented now.
- */
-static inline int dma_mapping_error(struct device *dev, dma_addr_t addr)
-{
-	return 0;
-}
-
-/**
- * dma_alloc_coherent - allocate consistent memory for DMA
- * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @size: required memory size
- * @handle: bus-specific DMA address
- *
- * Allocate some uncached, unbuffered memory for a device for
- * performing DMA.  This function allocates pages, and will
- * return the CPU-viewed address, and sets @handle to be the
- * device-viewed address.
- */
-extern void *dma_alloc_coherent(struct device *dev, size_t size,
-				dma_addr_t *handle, gfp_t gfp);
-
-/**
- * dma_free_coherent - free memory allocated by dma_alloc_coherent
- * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @size: size of memory originally requested in dma_alloc_coherent
- * @cpu_addr: CPU-view address returned from dma_alloc_coherent
- * @handle: device-view address returned from dma_alloc_coherent
- *
- * Free (and unmap) a DMA buffer previously allocated by
- * dma_alloc_coherent().
- *
- * References to memory and mappings associated with cpu_addr/handle
- * during and after this call executing are illegal.
- */
-extern void dma_free_coherent(struct device *dev, size_t size,
-			      void *cpu_addr, dma_addr_t handle);
-
-/**
- * dma_alloc_writecombine - allocate write-combining memory for DMA
- * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @size: required memory size
- * @handle: bus-specific DMA address
- *
- * Allocate some uncached, buffered memory for a device for
- * performing DMA.  This function allocates pages, and will
- * return the CPU-viewed address, and sets @handle to be the
- * device-viewed address.
- */
-extern void *dma_alloc_writecombine(struct device *dev, size_t size,
-				    dma_addr_t *handle, gfp_t gfp);
-
-/**
- * dma_free_coherent - free memory allocated by dma_alloc_writecombine
- * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @size: size of memory originally requested in dma_alloc_writecombine
- * @cpu_addr: CPU-view address returned from dma_alloc_writecombine
- * @handle: device-view address returned from dma_alloc_writecombine
- *
- * Free (and unmap) a DMA buffer previously allocated by
- * dma_alloc_writecombine().
- *
- * References to memory and mappings associated with cpu_addr/handle
- * during and after this call executing are illegal.
- */
-extern void dma_free_writecombine(struct device *dev, size_t size,
-				  void *cpu_addr, dma_addr_t handle);
-
-/**
- * dma_map_single - map a single buffer for streaming DMA
- * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @cpu_addr: CPU direct mapped address of buffer
- * @size: size of buffer to map
- * @dir: DMA transfer direction
- *
- * Ensure that any data held in the cache is appropriately discarded
- * or written back.
- *
- * The device owns this memory once this call has completed.  The CPU
- * can regain ownership by calling dma_unmap_single() or dma_sync_single().
- */
-static inline dma_addr_t
-dma_map_single(struct device *dev, void *cpu_addr, size_t size,
-	       enum dma_data_direction direction)
-{
-	dma_cache_sync(dev, cpu_addr, size, direction);
-	return virt_to_bus(cpu_addr);
-}
-
-/**
- * dma_unmap_single - unmap a single buffer previously mapped
- * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @handle: DMA address of buffer
- * @size: size of buffer to map
- * @dir: DMA transfer direction
- *
- * Unmap a single streaming mode DMA translation.  The handle and size
- * must match what was provided in the previous dma_map_single() call.
- * All other usages are undefined.
- *
- * After this call, reads by the CPU to the buffer are guaranteed to see
- * whatever the device wrote there.
- */
-static inline void
-dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
-		 enum dma_data_direction direction)
-{
-
-}
-
-/**
- * dma_map_page - map a portion of a page for streaming DMA
- * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @page: page that buffer resides in
- * @offset: offset into page for start of buffer
- * @size: size of buffer to map
- * @dir: DMA transfer direction
- *
- * Ensure that any data held in the cache is appropriately discarded
- * or written back.
- *
- * The device owns this memory once this call has completed.  The CPU
- * can regain ownership by calling dma_unmap_page() or dma_sync_single().
- */
-static inline dma_addr_t
-dma_map_page(struct device *dev, struct page *page,
-	     unsigned long offset, size_t size,
-	     enum dma_data_direction direction)
-{
-	return dma_map_single(dev, page_address(page) + offset,
-			      size, direction);
-}
-
-/**
- * dma_unmap_page - unmap a buffer previously mapped through dma_map_page()
- * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @handle: DMA address of buffer
- * @size: size of buffer to map
- * @dir: DMA transfer direction
- *
- * Unmap a single streaming mode DMA translation.  The handle and size
- * must match what was provided in the previous dma_map_single() call.
- * All other usages are undefined.
- *
- * After this call, reads by the CPU to the buffer are guaranteed to see
- * whatever the device wrote there.
- */
-static inline void
-dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
-	       enum dma_data_direction direction)
-{
-	dma_unmap_single(dev, dma_address, size, direction);
-}
-
-/**
- * dma_map_sg - map a set of SG buffers for streaming mode DMA
- * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @sg: list of buffers
- * @nents: number of buffers to map
- * @dir: DMA transfer direction
- *
- * Map a set of buffers described by scatterlist in streaming
- * mode for DMA.  This is the scatter-gather version of the
- * above pci_map_single interface.  Here the scatter gather list
- * elements are each tagged with the appropriate dma address
- * and length.  They are obtained via sg_dma_{address,length}(SG).
- *
- * NOTE: An implementation may be able to use a smaller number of
- *       DMA address/length pairs than there are SG table elements.
- *       (for example via virtual mapping capabilities)
- *       The routine returns the number of addr/length pairs actually
- *       used, at most nents.
- *
- * Device ownership issues as mentioned above for pci_map_single are
- * the same here.
- */
-static inline int
-dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	   enum dma_data_direction direction)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nents, i) {
-		char *virt;
-
-		sg->dma_address = page_to_bus(sg_page(sg)) + sg->offset;
-		virt = sg_virt(sg);
-		dma_cache_sync(dev, virt, sg->length, direction);
-	}
-
-	return nents;
-}
-
-/**
- * dma_unmap_sg - unmap a set of SG buffers mapped by dma_map_sg
- * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @sg: list of buffers
- * @nents: number of buffers to map
- * @dir: DMA transfer direction
- *
- * Unmap a set of streaming mode DMA translations.
- * Again, CPU read rules concerning calls here are the same as for
- * pci_unmap_single() above.
- */
-static inline void
-dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
-	     enum dma_data_direction direction)
-{
-
-}
-
-/**
- * dma_sync_single_for_cpu
- * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @handle: DMA address of buffer
- * @size: size of buffer to map
- * @dir: DMA transfer direction
- *
- * Make physical memory consistent for a single streaming mode DMA
- * translation after a transfer.
- *
- * If you perform a dma_map_single() but wish to interrogate the
- * buffer using the cpu, yet do not wish to teardown the DMA mapping,
- * you must call this function before doing so.  At the next point you
- * give the DMA address back to the card, you must first perform a
- * dma_sync_single_for_device, and then the device again owns the
- * buffer.
- */
-static inline void
-dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
-			size_t size, enum dma_data_direction direction)
-{
-	/*
-	 * No need to do anything since the CPU isn't supposed to
-	 * touch this memory after we flushed it at mapping- or
-	 * sync-for-device time.
-	 */
-}
-
-static inline void
-dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
-			   size_t size, enum dma_data_direction direction)
-{
-	dma_cache_sync(dev, bus_to_virt(dma_handle), size, direction);
-}
-
-static inline void
-dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
-			      unsigned long offset, size_t size,
-			      enum dma_data_direction direction)
-{
-	/* just sync everything, that's all the pci API can do */
-	dma_sync_single_for_cpu(dev, dma_handle, offset+size, direction);
-}
-
-static inline void
-dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
-				 unsigned long offset, size_t size,
-				 enum dma_data_direction direction)
-{
-	/* just sync everything, that's all the pci API can do */
-	dma_sync_single_for_device(dev, dma_handle, offset+size, direction);
-}
+extern struct dma_map_ops avr32_dma_ops;
 
-/**
- * dma_sync_sg_for_cpu
- * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @sg: list of buffers
- * @nents: number of buffers to map
- * @dir: DMA transfer direction
- *
- * Make physical memory consistent for a set of streaming
- * mode DMA translations after a transfer.
- *
- * The same as dma_sync_single_for_* but for a scatter-gather list,
- * same rules and usage.
- */
-static inline void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
-		    int nents, enum dma_data_direction direction)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
-	/*
-	 * No need to do anything since the CPU isn't supposed to
-	 * touch this memory after we flushed it at mapping- or
-	 * sync-for-device time.
-	 */
+	return &avr32_dma_ops;
 }
 
-static inline void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
-		       int nents, enum dma_data_direction direction)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nents, i)
-		dma_cache_sync(dev, sg_virt(sg), sg->length, direction);
-}
-
-/* Now for the API extensions over the pci_ one */
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-
-/* drivers/base/dma-mapping.c */
-extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
-			   void *cpu_addr, dma_addr_t dma_addr, size_t size);
-extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
-				  void *cpu_addr, dma_addr_t dma_addr,
-				  size_t size);
-
-#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s)
-#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s)
+#include <asm-generic/dma-mapping-common.h>
 
 #endif /* __ASM_AVR32_DMA_MAPPING_H */
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
index 50cdb5b..5b5e80f 100644
--- a/arch/avr32/mm/dma-coherent.c
+++ b/arch/avr32/mm/dma-coherent.c
@@ -9,9 +9,14 @@
 #include <linux/dma-mapping.h>
 #include <linux/gfp.h>
 #include <linux/export.h>
+#include <linux/mm.h>
+#include <linux/device.h>
+#include <linux/scatterlist.h>
 
-#include <asm/addrspace.h>
+#include <asm/processor.h>
 #include <asm/cacheflush.h>
+#include <asm/io.h>
+#include <asm/addrspace.h>
 
 void dma_cache_sync(struct device *dev, void *vaddr, size_t size, int direction)
 {
@@ -93,60 +98,100 @@ static void __dma_free(struct device *dev, size_t size,
 		__free_page(page++);
 }
 
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			 dma_addr_t *handle, gfp_t gfp)
+static void *avr32_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *handle, gfp_t gfp, struct dma_attrs *attrs)
 {
 	struct page *page;
-	void *ret = NULL;
+	dma_addr_t phys;
 
 	page = __dma_alloc(dev, size, handle, gfp);
-	if (page)
-		ret = phys_to_uncached(page_to_phys(page));
+	if (!page)
+		return NULL;
+	phys = page_to_phys(page);
 
-	return ret;
+	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs)) {
+		/* Now, map the page into P3 with write-combining turned on */
+		*handle = phys;
+		return __ioremap(phys, size, _PAGE_BUFFER);
+	} else {
+		return phys_to_uncached(phys);
+	}
 }
-EXPORT_SYMBOL(dma_alloc_coherent);
 
-void dma_free_coherent(struct device *dev, size_t size,
-		       void *cpu_addr, dma_addr_t handle)
+static void avr32_dma_free(struct device *dev, size_t size,
+		void *cpu_addr, dma_addr_t handle, struct dma_attrs *attrs)
 {
-	void *addr = phys_to_cached(uncached_to_phys(cpu_addr));
 	struct page *page;
 
-	pr_debug("dma_free_coherent addr %p (phys %08lx) size %u\n",
-		 cpu_addr, (unsigned long)handle, (unsigned)size);
-	BUG_ON(!virt_addr_valid(addr));
-	page = virt_to_page(addr);
+	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs)) {
+		iounmap(cpu_addr);
+
+		page = phys_to_page(handle);
+	} else {
+		void *addr = phys_to_cached(uncached_to_phys(cpu_addr));
+
+		pr_debug("avr32_dma_free addr %p (phys %08lx) size %u\n",
+			 cpu_addr, (unsigned long)handle, (unsigned)size);
+	
+		BUG_ON(!virt_addr_valid(addr));
+		page = virt_to_page(addr);
+	}
+
 	__dma_free(dev, size, page, handle);
 }
-EXPORT_SYMBOL(dma_free_coherent);
 
-void *dma_alloc_writecombine(struct device *dev, size_t size,
-			     dma_addr_t *handle, gfp_t gfp)
+static dma_addr_t avr32_dma_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size,
+		enum dma_data_direction direction, struct dma_attrs *attrs)
 {
-	struct page *page;
-	dma_addr_t phys;
+	void *cpu_addr = page_address(page) + offset;
 
-	page = __dma_alloc(dev, size, handle, gfp);
-	if (!page)
-		return NULL;
+	dma_cache_sync(dev, cpu_addr, size, direction);
+	return virt_to_bus(cpu_addr);
+}
 
-	phys = page_to_phys(page);
-	*handle = phys;
+static int avr32_dma_map_sg(struct device *dev, struct scatterlist *sglist,
+		int nents, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
+{
+	int i;
+	struct scatterlist *sg;
+
+	for_each_sg(sglist, sg, nents, i) {
+		char *virt;
 
-	/* Now, map the page into P3 with write-combining turned on */
-	return __ioremap(phys, size, _PAGE_BUFFER);
+		sg->dma_address = page_to_bus(sg_page(sg)) + sg->offset;
+		virt = sg_virt(sg);
+		dma_cache_sync(dev, virt, sg->length, direction);
+	}
+
+	return nents;
 }
-EXPORT_SYMBOL(dma_alloc_writecombine);
 
-void dma_free_writecombine(struct device *dev, size_t size,
-			   void *cpu_addr, dma_addr_t handle)
+static void avr32_dma_sync_single_for_device(struct device *dev,
+		dma_addr_t dma_handle, size_t size,
+		enum dma_data_direction direction)
 {
-	struct page *page;
+	dma_cache_sync(dev, bus_to_virt(dma_handle), size, direction);
+}
 
-	iounmap(cpu_addr);
+static void avr32_dma_sync_sg_for_device(struct device *dev,
+		struct scatterlist *sglist, int nents,
+		enum dma_data_direction direction)
+{
+	int i;
+	struct scatterlist *sg;
 
-	page = phys_to_page(handle);
-	__dma_free(dev, size, page, handle);
+	for_each_sg(sglist, sg, nents, i)
+		dma_cache_sync(dev, sg_virt(sg), sg->length, direction);
 }
-EXPORT_SYMBOL(dma_free_writecombine);
+
+struct dma_map_ops avr32_dma_ops = {
+	.alloc			= avr32_dma_alloc,
+	.free			= avr32_dma_free,
+	.map_page		= avr32_dma_map_page,
+	.map_sg			= avr32_dma_map_sg,
+	.sync_single_for_device	= avr32_dma_sync_single_for_device,
+	.sync_sg_for_device	= avr32_dma_sync_sg_for_device,
+};
+EXPORT_SYMBOL(avr32_dma_ops);
-- 
1.9.1


From - Thu Nov 08 21:38:01 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.ports.sparc,gmane.linux.kernel.iommu
Subject: use dma_map_ops for all architectures
Date: Mon,  9 Nov 2015 19:17:05 +0100
Lines: 15
Approved: news@gmane.org
Message-ID: <1447093041-21832-1-git-send-email-hch@lst.de>
NNTP-Posting-Host: plane.gmane.org
X-Trace: ger.gmane.org 1447093343 18571 80.91.229.3 (9 Nov 2015 18:22:23 GMT)
X-Complaints-To: usenet@ger.gmane.org
NNTP-Posting-Date: Mon, 9 Nov 2015 18:22:23 +0000 (UTC)
To: Andrew Morton <akpm@linux-foundation.org>,
	Haavard Skinnemoen <hskinnemoen@gmail.com>,
	Hans-Christian Egtvedt <egtvedt@samfundet.no>,
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This series converts all remaining architectures to use dma_map_ops
and the generic implementation of the DMA API.  This not only
simplifies the code a lot, but also prepares for possible future
changes like more generic non-iommu dma_ops implementations or generic
per-device dma_map_ops.

A git tree is also available at:

	http://git.infradead.org/users/hch/block.git/shortlog/refs/heads/dma-mapping-cleanups

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From - Thu Nov 08 21:38:01 2018
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.sparc,gmane.linux.kernel.iommu
Subject: [PATCH 04/16] blackfin: convert to dma_map_ops
Date: Mon,  9 Nov 2015 19:17:09 +0100
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Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/blackfin/Kconfig                   |   1 +
 arch/blackfin/include/asm/dma-mapping.h | 127 +-------------------------------
 arch/blackfin/kernel/dma-mapping.c      |  52 +++++++++----
 3 files changed, 43 insertions(+), 137 deletions(-)

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index af76634..d3c68dd 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -40,6 +40,7 @@ config BLACKFIN
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_RELA
 	select HAVE_DEBUG_STACKOVERFLOW
+	select HAVE_DMA_ATTRS
 
 config GENERIC_CSUM
 	def_bool y
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index 054d9ec..ea5a2e8 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -8,36 +8,6 @@
 #define _BLACKFIN_DMA_MAPPING_H
 
 #include <asm/cacheflush.h>
-struct scatterlist;
-
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			 dma_addr_t *dma_handle, gfp_t gfp);
-void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
-		       dma_addr_t dma_handle);
-
-/*
- * Now for the API extensions over the pci_ one
- */
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-#define dma_supported(d, m)         (1)
-
-static inline int
-dma_set_mask(struct device *dev, u64 dma_mask)
-{
-	if (!dev->dma_mask || !dma_supported(dev, dma_mask))
-		return -EIO;
-
-	*dev->dma_mask = dma_mask;
-
-	return 0;
-}
-
-static inline int
-dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return 0;
-}
 
 extern void
 __dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir);
@@ -66,102 +36,13 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir)
 		__dma_sync(addr, size, dir);
 }
 
-static inline dma_addr_t
-dma_map_single(struct device *dev, void *ptr, size_t size,
-	       enum dma_data_direction dir)
-{
-	_dma_sync((dma_addr_t)ptr, size, dir);
-	return (dma_addr_t) ptr;
-}
-
-static inline dma_addr_t
-dma_map_page(struct device *dev, struct page *page,
-	     unsigned long offset, size_t size,
-	     enum dma_data_direction dir)
-{
-	return dma_map_single(dev, page_address(page) + offset, size, dir);
-}
-
-static inline void
-dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
-		 enum dma_data_direction dir)
-{
-	BUG_ON(!valid_dma_direction(dir));
-}
-
-static inline void
-dma_unmap_page(struct device *dev, dma_addr_t dma_addr, size_t size,
-	       enum dma_data_direction dir)
-{
-	dma_unmap_single(dev, dma_addr, size, dir);
-}
-
-extern int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
-		      enum dma_data_direction dir);
-
-static inline void
-dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-	     int nhwentries, enum dma_data_direction dir)
-{
-	BUG_ON(!valid_dma_direction(dir));
-}
-
-static inline void
-dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t handle,
-			      unsigned long offset, size_t size,
-			      enum dma_data_direction dir)
-{
-	BUG_ON(!valid_dma_direction(dir));
-}
-
-static inline void
-dma_sync_single_range_for_device(struct device *dev, dma_addr_t handle,
-				 unsigned long offset, size_t size,
-				 enum dma_data_direction dir)
-{
-	_dma_sync(handle + offset, size, dir);
-}
+extern struct dma_map_ops bfin_dma_ops;
 
-static inline void
-dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle, size_t size,
-			enum dma_data_direction dir)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
-	dma_sync_single_range_for_cpu(dev, handle, 0, size, dir);
+	return &bfin_dma_ops;
 }
 
-static inline void
-dma_sync_single_for_device(struct device *dev, dma_addr_t handle, size_t size,
-			   enum dma_data_direction dir)
-{
-	dma_sync_single_range_for_device(dev, handle, 0, size, dir);
-}
-
-static inline void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
-		    enum dma_data_direction dir)
-{
-	BUG_ON(!valid_dma_direction(dir));
-}
-
-extern void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-		       int nents, enum dma_data_direction dir);
-
-static inline void
-dma_cache_sync(struct device *dev, void *vaddr, size_t size,
-	       enum dma_data_direction dir)
-{
-	_dma_sync((dma_addr_t)vaddr, size, dir);
-}
-
-/* drivers/base/dma-mapping.c */
-extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
-			   void *cpu_addr, dma_addr_t dma_addr, size_t size);
-extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
-				  void *cpu_addr, dma_addr_t dma_addr,
-				  size_t size);
-
-#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s)
-#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s)
+#include <asm-generic/dma-mapping-common.h>
 
 #endif				/* _BLACKFIN_DMA_MAPPING_H */
diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c
index df437e5..771afe6 100644
--- a/arch/blackfin/kernel/dma-mapping.c
+++ b/arch/blackfin/kernel/dma-mapping.c
@@ -78,8 +78,8 @@ static void __free_dma_pages(unsigned long addr, unsigned int pages)
 	spin_unlock_irqrestore(&dma_page_lock, flags);
 }
 
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			 dma_addr_t *dma_handle, gfp_t gfp)
+static void *bfin_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs)
 {
 	void *ret;
 
@@ -92,15 +92,12 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 
 	return ret;
 }
-EXPORT_SYMBOL(dma_alloc_coherent);
 
-void
-dma_free_coherent(struct device *dev, size_t size, void *vaddr,
-		  dma_addr_t dma_handle)
+static void bfin_dma_free(struct device *dev, size_t size, void *vaddr,
+		  dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
 	__free_dma_pages((unsigned long)vaddr, get_pages(size));
 }
-EXPORT_SYMBOL(dma_free_coherent);
 
 /*
  * Streaming DMA mappings
@@ -112,9 +109,9 @@ void __dma_sync(dma_addr_t addr, size_t size,
 }
 EXPORT_SYMBOL(__dma_sync);
 
-int
-dma_map_sg(struct device *dev, struct scatterlist *sg_list, int nents,
-	   enum dma_data_direction direction)
+static int bfin_dma_map_sg(struct device *dev, struct scatterlist *sg_list,
+		int nents, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
 {
 	struct scatterlist *sg;
 	int i;
@@ -126,10 +123,10 @@ dma_map_sg(struct device *dev, struct scatterlist *sg_list, int nents,
 
 	return nents;
 }
-EXPORT_SYMBOL(dma_map_sg);
 
-void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg_list,
-			    int nelems, enum dma_data_direction direction)
+static void bfin_dma_sync_sg_for_device(struct device *dev,
+		struct scatterlist *sg_list, int nelems,
+		enum dma_data_direction direction)
 {
 	struct scatterlist *sg;
 	int i;
@@ -139,4 +136,31 @@ void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg_list,
 		__dma_sync(sg_dma_address(sg), sg_dma_len(sg), direction);
 	}
 }
-EXPORT_SYMBOL(dma_sync_sg_for_device);
+
+static dma_addr_t bfin_dma_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size, enum dma_data_direction dir,
+		struct dma_attrs *attrs)
+{
+	dma_addr_t handle = (dma_addr_t)(page_address(page) + offset);
+
+	_dma_sync(handle, size, dir);
+	return handle;
+}
+
+static inline void bfin_dma_sync_single_for_device(struct device *dev,
+		dma_addr_t handle, size_t size, enum dma_data_direction dir)
+{
+	_dma_sync(handle, size, dir);
+}
+
+struct dma_map_ops bfin_dma_ops = {
+	.alloc			= bfin_dma_alloc,
+	.free			= bfin_dma_free,
+
+	.map_page		= bfin_dma_map_page,
+	.map_sg			= bfin_dma_map_sg,
+
+	.sync_single_for_device	= bfin_dma_sync_single_for_device,
+	.sync_sg_for_device	= bfin_dma_sync_sg_for_device,
+};
+EXPORT_SYMBOL(bfin_dma_ops);
-- 
1.9.1


From - Thu Nov 08 21:38:01 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.ports.sparc,gmane.linux.kernel.iommu
Subject: [PATCH 06/16] cris: convert to dma_map_ops
Date: Mon,  9 Nov 2015 19:17:11 +0100
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To: Andrew Morton <akpm@linux-foundation.org>,
	Haavard Skinnemoen <hskinnemoen@gmail.com>,
	Hans-Christian Egtvedt <egtvedt@samfundet.no>,
	Steven Miao <realmz6@gmail.com>,
	Ley Foon Tan <lftan@altera.com>,
	David Howells <dhowells@redhat.com>,
	Koichi Yasutake <yasutake.koichi@jp.panasonic.com>,
	Chris Metcalf <cmetcalf@ezchip.com>,
	linux-snps-arc@lists.infraded.org, linux-c6x-dev@linux-c6x.org,
	linux-cris-kernel@axis.com, linux-parisc@vger.kernel.org,
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	sparclinux@vger.kernel.org, iommu@lists.linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/7590>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/cris/Kconfig                    |   1 +
 arch/cris/arch-v32/drivers/pci/dma.c |  54 +++++++++---
 arch/cris/include/asm/dma-mapping.h  | 161 ++---------------------------------
 3 files changed, 51 insertions(+), 165 deletions(-)

diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index e086f9e..f5dd700 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -69,6 +69,7 @@ config CRIS
 	select GENERIC_CLOCKEVENTS if ETRAX_ARCH_V32
 	select GENERIC_SCHED_CLOCK if ETRAX_ARCH_V32
 	select HAVE_DEBUG_BUGVERBOSE if ETRAX_ARCH_V32
+	select HAVE_DMA_ATTRS
 
 config HZ
 	int
diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
index ee55578..8d5efa5 100644
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ b/arch/cris/arch-v32/drivers/pci/dma.c
@@ -16,21 +16,18 @@
 #include <linux/gfp.h>
 #include <asm/io.h>
 
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			   dma_addr_t *dma_handle, gfp_t gfp)
+static void *v32_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp,  struct dma_attrs *attrs)
 {
 	void *ret;
-	int order = get_order(size);
+
 	/* ignore region specifiers */
 	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
 
-	if (dma_alloc_from_coherent(dev, size, dma_handle, &ret))
-		return ret;
-
 	if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff))
 		gfp |= GFP_DMA;
 
-	ret = (void *)__get_free_pages(gfp, order);
+	ret = (void *)__get_free_pages(gfp,  get_order(size));
 
 	if (ret != NULL) {
 		memset(ret, 0, size);
@@ -39,12 +36,45 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 	return ret;
 }
 
-void dma_free_coherent(struct device *dev, size_t size,
-			 void *vaddr, dma_addr_t dma_handle)
+static void v32_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, struct dma_attrs *attrs)
+{
+	free_pages((unsigned long)vaddr, get_order(size));
+}
+
+static inline dma_addr_t v32_dma_map_page(struct device *dev,
+		struct page *page, unsigned long offset, size_t size,
+		enum dma_data_direction direction,
+		struct dma_attrs *attrs)
 {
-	int order = get_order(size);
+	return page_to_phys(page) + offset;
+}
 
-	if (!dma_release_from_coherent(dev, order, vaddr))
-		free_pages((unsigned long)vaddr, order);
+static inline int v32_dma_map_sg(struct device *dev, struct scatterlist *sg,
+		int nents, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
+{
+	printk("Map sg\n");
+	return nents;
+}
+
+static inline int v32_dma_supported(struct device *dev, u64 mask)
+{
+        /*
+         * we fall back to GFP_DMA when the mask isn't all 1s,
+         * so we can't guarantee allocations that must be
+         * within a tighter range than GFP_DMA..
+         */
+        if (mask < 0x00ffffff)
+                return 0;
+	return 1;
 }
 
+struct dma_map_ops v32_dma_ops = {
+	.alloc			= v32_dma_alloc,
+	.free			= v32_dma_free,
+	.map_page		= v32_dma_map_page,
+	.map_sg                 = v32_dma_map_sg,
+	.dma_supported		= v32_dma_supported,
+};
+EXPORT_SYMBOL(v32_dma_ops);
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index 57f794e..34e7c7c 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -1,156 +1,22 @@
-/* DMA mapping. Nothing tricky here, just virt_to_phys */
-
 #ifndef _ASM_CRIS_DMA_MAPPING_H
 #define _ASM_CRIS_DMA_MAPPING_H
 
-#include <linux/mm.h>
-#include <linux/kernel.h>
-#include <linux/scatterlist.h>
-
-#include <asm/cache.h>
-#include <asm/io.h>
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-
 #ifdef CONFIG_PCI
-#include <asm-generic/dma-coherent.h>
-
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			   dma_addr_t *dma_handle, gfp_t flag);
+extern struct dma_map_ops v32_dma_ops;
 
-void dma_free_coherent(struct device *dev, size_t size,
-			 void *vaddr, dma_addr_t dma_handle);
-#else
-static inline void *
-dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
-                   gfp_t flag)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
-        BUG();
-        return NULL;
+	return &v32_dma_ops;
 }
-
-static inline void
-dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
-                    dma_addr_t dma_handle)
+#else
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
-        BUG();
+	BUG();
+	return NULL;
 }
 #endif
-static inline dma_addr_t
-dma_map_single(struct device *dev, void *ptr, size_t size,
-	       enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-	return virt_to_phys(ptr);
-}
-
-static inline void
-dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
-		 enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-}
-
-static inline int
-dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
-	   enum dma_data_direction direction)
-{
-	printk("Map sg\n");
-	return nents;
-}
-
-static inline dma_addr_t
-dma_map_page(struct device *dev, struct page *page, unsigned long offset,
-	     size_t size, enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-	return page_to_phys(page) + offset;
-}
-
-static inline void
-dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
-	       enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-}
-
-
-static inline void
-dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
-	     enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-}
-
-static inline void
-dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
-			enum dma_data_direction direction)
-{
-}
-
-static inline void
-dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size,
-			enum dma_data_direction direction)
-{
-}
-
-static inline void
-dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
-			      unsigned long offset, size_t size,
-			      enum dma_data_direction direction)
-{
-}
 
-static inline void
-dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
-				 unsigned long offset, size_t size,
-				 enum dma_data_direction direction)
-{
-}
-
-static inline void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
-		    enum dma_data_direction direction)
-{
-}
-
-static inline void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
-		    enum dma_data_direction direction)
-{
-}
-
-static inline int
-dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return 0;
-}
-
-static inline int
-dma_supported(struct device *dev, u64 mask)
-{
-        /*
-         * we fall back to GFP_DMA when the mask isn't all 1s,
-         * so we can't guarantee allocations that must be
-         * within a tighter range than GFP_DMA..
-         */
-        if(mask < 0x00ffffff)
-                return 0;
-
-	return 1;
-}
-
-static inline int
-dma_set_mask(struct device *dev, u64 mask)
-{
-	if(!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-
-	*dev->dma_mask = mask;
-
-	return 0;
-}
+#include <asm-generic/dma-mapping-common.h>
 
 static inline void
 dma_cache_sync(struct device *dev, void *vaddr, size_t size,
@@ -158,15 +24,4 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 {
 }
 
-/* drivers/base/dma-mapping.c */
-extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
-			   void *cpu_addr, dma_addr_t dma_addr, size_t size);
-extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
-				  void *cpu_addr, dma_addr_t dma_addr,
-				  size_t size);
-
-#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s)
-#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s)
-
-
 #endif
-- 
1.9.1


From - Thu Nov 08 21:38:01 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.kernel.iommu
Subject: [PATCH 09/16] parisc: convert to dma_map_ops
Date: Mon,  9 Nov 2015 19:17:14 +0100
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Approved: news@gmane.org
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To: Andrew Morton <akpm@linux-foundation.org>,
	Haavard Skinnemoen <hskinnemoen@gmail.com>,
	Hans-Christian Egtvedt <egtvedt@samfundet.no>,
	Steven Miao <realmz6@gmail.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/21739>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/parisc/Kconfig                   |   2 +
 arch/parisc/include/asm/dma-mapping.h | 189 ++--------------------------------
 arch/parisc/kernel/drivers.c          |   2 +-
 arch/parisc/kernel/pci-dma.c          |  92 ++++++++++-------
 drivers/parisc/ccio-dma.c             |  57 +++++-----
 drivers/parisc/sba_iommu.c            |  52 +++++-----
 6 files changed, 124 insertions(+), 270 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index c365469..bdabfcd 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -29,6 +29,8 @@ config PARISC
 	select TTY # Needed for pdc_cons.c
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_ARCH_AUDITSYSCALL
+	select ARCH_NO_COHERENT_DMA_MMAP
+	select HAVE_DMA_ATTRS
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index d8d60a5..4de5186 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -1,30 +1,11 @@
 #ifndef _PARISC_DMA_MAPPING_H
 #define _PARISC_DMA_MAPPING_H
 
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
 #include <asm/cacheflush.h>
 
-/* See Documentation/DMA-API-HOWTO.txt */
-struct hppa_dma_ops {
-	int  (*dma_supported)(struct device *dev, u64 mask);
-	void *(*alloc_consistent)(struct device *dev, size_t size, dma_addr_t *iova, gfp_t flag);
-	void *(*alloc_noncoherent)(struct device *dev, size_t size, dma_addr_t *iova, gfp_t flag);
-	void (*free_consistent)(struct device *dev, size_t size, void *vaddr, dma_addr_t iova);
-	dma_addr_t (*map_single)(struct device *dev, void *addr, size_t size, enum dma_data_direction direction);
-	void (*unmap_single)(struct device *dev, dma_addr_t iova, size_t size, enum dma_data_direction direction);
-	int  (*map_sg)(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction direction);
-	void (*unmap_sg)(struct device *dev, struct scatterlist *sg, int nhwents, enum dma_data_direction direction);
-	void (*dma_sync_single_for_cpu)(struct device *dev, dma_addr_t iova, unsigned long offset, size_t size, enum dma_data_direction direction);
-	void (*dma_sync_single_for_device)(struct device *dev, dma_addr_t iova, unsigned long offset, size_t size, enum dma_data_direction direction);
-	void (*dma_sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
-	void (*dma_sync_sg_for_device)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
-};
-
 /*
-** We could live without the hppa_dma_ops indirection if we didn't want
-** to support 4 different coherent dma models with one binary (they will
-** someday be loadable modules):
+** We need to support 4 different coherent dma models with one binary:
+**
 **     I/O MMU        consistent method           dma_sync behavior
 **  =============   ======================       =======================
 **  a) PA-7x00LC    uncachable host memory          flush/purge
@@ -40,158 +21,22 @@ struct hppa_dma_ops {
 */
 
 #ifdef CONFIG_PA11
-extern struct hppa_dma_ops pcxl_dma_ops;
-extern struct hppa_dma_ops pcx_dma_ops;
+extern struct dma_map_ops pcxl_dma_ops;
+extern struct dma_map_ops pcx_dma_ops;
 #endif
 
-extern struct hppa_dma_ops *hppa_dma_ops;
-
-#define dma_alloc_attrs(d, s, h, f, a) dma_alloc_coherent(d, s, h, f)
-#define dma_free_attrs(d, s, h, f, a) dma_free_coherent(d, s, h, f)
-
-static inline void *
-dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
-		   gfp_t flag)
-{
-	return hppa_dma_ops->alloc_consistent(dev, size, dma_handle, flag);
-}
-
-static inline void *
-dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
-		      gfp_t flag)
-{
-	return hppa_dma_ops->alloc_noncoherent(dev, size, dma_handle, flag);
-}
-
-static inline void
-dma_free_coherent(struct device *dev, size_t size, 
-		    void *vaddr, dma_addr_t dma_handle)
-{
-	hppa_dma_ops->free_consistent(dev, size, vaddr, dma_handle);
-}
-
-static inline void
-dma_free_noncoherent(struct device *dev, size_t size, 
-		    void *vaddr, dma_addr_t dma_handle)
-{
-	hppa_dma_ops->free_consistent(dev, size, vaddr, dma_handle);
-}
-
-static inline dma_addr_t
-dma_map_single(struct device *dev, void *ptr, size_t size,
-	       enum dma_data_direction direction)
-{
-	return hppa_dma_ops->map_single(dev, ptr, size, direction);
-}
-
-static inline void
-dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
-		 enum dma_data_direction direction)
-{
-	hppa_dma_ops->unmap_single(dev, dma_addr, size, direction);
-}
-
-static inline int
-dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
-	   enum dma_data_direction direction)
-{
-	return hppa_dma_ops->map_sg(dev, sg, nents, direction);
-}
-
-static inline void
-dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
-	     enum dma_data_direction direction)
-{
-	hppa_dma_ops->unmap_sg(dev, sg, nhwentries, direction);
-}
-
-static inline dma_addr_t
-dma_map_page(struct device *dev, struct page *page, unsigned long offset,
-	     size_t size, enum dma_data_direction direction)
-{
-	return dma_map_single(dev, (page_address(page) + (offset)), size, direction);
-}
-
-static inline void
-dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
-	       enum dma_data_direction direction)
-{
-	dma_unmap_single(dev, dma_address, size, direction);
-}
-
-
-static inline void
-dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	if(hppa_dma_ops->dma_sync_single_for_cpu)
-		hppa_dma_ops->dma_sync_single_for_cpu(dev, dma_handle, 0, size, direction);
-}
-
-static inline void
-dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	if(hppa_dma_ops->dma_sync_single_for_device)
-		hppa_dma_ops->dma_sync_single_for_device(dev, dma_handle, 0, size, direction);
-}
-
-static inline void
-dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
-		      unsigned long offset, size_t size,
-		      enum dma_data_direction direction)
-{
-	if(hppa_dma_ops->dma_sync_single_for_cpu)
-		hppa_dma_ops->dma_sync_single_for_cpu(dev, dma_handle, offset, size, direction);
-}
+extern struct dma_map_ops *hppa_dma_ops;
 
-static inline void
-dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
-		      unsigned long offset, size_t size,
-		      enum dma_data_direction direction)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
-	if(hppa_dma_ops->dma_sync_single_for_device)
-		hppa_dma_ops->dma_sync_single_for_device(dev, dma_handle, offset, size, direction);
-}
-
-static inline void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
-		 enum dma_data_direction direction)
-{
-	if(hppa_dma_ops->dma_sync_sg_for_cpu)
-		hppa_dma_ops->dma_sync_sg_for_cpu(dev, sg, nelems, direction);
-}
-
-static inline void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
-		 enum dma_data_direction direction)
-{
-	if(hppa_dma_ops->dma_sync_sg_for_device)
-		hppa_dma_ops->dma_sync_sg_for_device(dev, sg, nelems, direction);
-}
-
-static inline int
-dma_supported(struct device *dev, u64 mask)
-{
-	return hppa_dma_ops->dma_supported(dev, mask);
-}
-
-static inline int
-dma_set_mask(struct device *dev, u64 mask)
-{
-	if(!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-
-	*dev->dma_mask = mask;
-
-	return 0;
+	return hppa_dma_ops;
 }
 
 static inline void
 dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	       enum dma_data_direction direction)
 {
-	if(hppa_dma_ops->dma_sync_single_for_cpu)
+	if (hppa_dma_ops->sync_single_for_cpu)
 		flush_kernel_dcache_range((unsigned long)vaddr, size);
 }
 
@@ -238,22 +83,6 @@ struct parisc_device;
 void * sba_get_iommu(struct parisc_device *dev);
 #endif
 
-/* At the moment, we panic on error for IOMMU resource exaustion */
-#define dma_mapping_error(dev, x)	0
-
-/* This API cannot be supported on PA-RISC */
-static inline int dma_mmap_coherent(struct device *dev,
-				    struct vm_area_struct *vma, void *cpu_addr,
-				    dma_addr_t dma_addr, size_t size)
-{
-	return -EINVAL;
-}
-
-static inline int dma_get_sgtable(struct device *dev, struct sg_table *sgt,
-				  void *cpu_addr, dma_addr_t dma_addr,
-				  size_t size)
-{
-	return -EINVAL;
-}
+#include <asm-generic/dma-mapping-common.h>
 
 #endif
diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index dba508f..f815066 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -40,7 +40,7 @@
 #include <asm/parisc-device.h>
 
 /* See comments in include/asm-parisc/pci.h */
-struct hppa_dma_ops *hppa_dma_ops __read_mostly;
+struct dma_map_ops *hppa_dma_ops __read_mostly;
 EXPORT_SYMBOL(hppa_dma_ops);
 
 static struct device root = {
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index b9402c9..a27e492 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -413,7 +413,8 @@ pcxl_dma_init(void)
 
 __initcall(pcxl_dma_init);
 
-static void * pa11_dma_alloc_consistent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag)
+static void *pa11_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
 {
 	unsigned long vaddr;
 	unsigned long paddr;
@@ -439,7 +440,8 @@ static void * pa11_dma_alloc_consistent (struct device *dev, size_t size, dma_ad
 	return (void *)vaddr;
 }
 
-static void pa11_dma_free_consistent (struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle)
+static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
 	int order;
 
@@ -450,15 +452,20 @@ static void pa11_dma_free_consistent (struct device *dev, size_t size, void *vad
 	free_pages((unsigned long)__va(dma_handle), order);
 }
 
-static dma_addr_t pa11_dma_map_single(struct device *dev, void *addr, size_t size, enum dma_data_direction direction)
+static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size,
+		enum dma_data_direction direction, struct dma_attrs *attrs)
 {
+	void *addr = page_address(page) + offset;
 	BUG_ON(direction == DMA_NONE);
 
 	flush_kernel_dcache_range((unsigned long) addr, size);
 	return virt_to_phys(addr);
 }
 
-static void pa11_dma_unmap_single(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction direction)
+static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
+		size_t size, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
 {
 	BUG_ON(direction == DMA_NONE);
 
@@ -475,7 +482,9 @@ static void pa11_dma_unmap_single(struct device *dev, dma_addr_t dma_handle, siz
 	return;
 }
 
-static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
+static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
+		int nents, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -492,7 +501,9 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int n
 	return nents;
 }
 
-static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
+static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
+		int nents, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -509,18 +520,24 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, in
 	return;
 }
 
-static void pa11_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
+static void pa11_dma_sync_single_for_cpu(struct device *dev,
+		dma_addr_t dma_handle, size_t size,
+		enum dma_data_direction direction)
 {
 	BUG_ON(direction == DMA_NONE);
 
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
+	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
+			size);
 }
 
-static void pa11_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
+static void pa11_dma_sync_single_for_device(struct device *dev,
+		dma_addr_t dma_handle, size_t size,
+		enum dma_data_direction direction)
 {
 	BUG_ON(direction == DMA_NONE);
 
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
+	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
+			size);
 }
 
 static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
@@ -545,32 +562,28 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
 		flush_kernel_vmap_range(sg_virt(sg), sg->length);
 }
 
-struct hppa_dma_ops pcxl_dma_ops = {
+struct dma_map_ops pcxl_dma_ops = {
 	.dma_supported =	pa11_dma_supported,
-	.alloc_consistent =	pa11_dma_alloc_consistent,
-	.alloc_noncoherent =	pa11_dma_alloc_consistent,
-	.free_consistent =	pa11_dma_free_consistent,
-	.map_single =		pa11_dma_map_single,
-	.unmap_single =		pa11_dma_unmap_single,
+	.alloc =		pa11_dma_alloc,
+	.free =			pa11_dma_free,
+	.map_page =		pa11_dma_map_page,
+	.unmap_page =		pa11_dma_unmap_page,
 	.map_sg =		pa11_dma_map_sg,
 	.unmap_sg =		pa11_dma_unmap_sg,
-	.dma_sync_single_for_cpu = pa11_dma_sync_single_for_cpu,
-	.dma_sync_single_for_device = pa11_dma_sync_single_for_device,
-	.dma_sync_sg_for_cpu = pa11_dma_sync_sg_for_cpu,
-	.dma_sync_sg_for_device = pa11_dma_sync_sg_for_device,
+	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
+	.sync_single_for_device = pa11_dma_sync_single_for_device,
+	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
+	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
 };
 
-static void *fail_alloc_consistent(struct device *dev, size_t size,
-				   dma_addr_t *dma_handle, gfp_t flag)
-{
-	return NULL;
-}
-
-static void *pa11_dma_alloc_noncoherent(struct device *dev, size_t size,
-					  dma_addr_t *dma_handle, gfp_t flag)
+static void *pcx_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
 {
 	void *addr;
 
+	if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+		return NULL;
+
 	addr = (void *)__get_free_pages(flag, get_order(size));
 	if (addr)
 		*dma_handle = (dma_addr_t)virt_to_phys(addr);
@@ -578,24 +591,23 @@ static void *pa11_dma_alloc_noncoherent(struct device *dev, size_t size,
 	return addr;
 }
 
-static void pa11_dma_free_noncoherent(struct device *dev, size_t size,
-					void *vaddr, dma_addr_t iova)
+static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t iova, struct dma_attrs *attrs)
 {
 	free_pages((unsigned long)vaddr, get_order(size));
 	return;
 }
 
-struct hppa_dma_ops pcx_dma_ops = {
+struct dma_map_ops pcx_dma_ops = {
 	.dma_supported =	pa11_dma_supported,
-	.alloc_consistent =	fail_alloc_consistent,
-	.alloc_noncoherent =	pa11_dma_alloc_noncoherent,
-	.free_consistent =	pa11_dma_free_noncoherent,
-	.map_single =		pa11_dma_map_single,
-	.unmap_single =		pa11_dma_unmap_single,
+	.alloc =		pcx_dma_alloc,
+	.free =			pcx_dma_free,
+	.map_page =		pa11_dma_map_page,
+	.unmap_page =		pa11_dma_unmap_page,
 	.map_sg =		pa11_dma_map_sg,
 	.unmap_sg =		pa11_dma_unmap_sg,
-	.dma_sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
-	.dma_sync_single_for_device =	pa11_dma_sync_single_for_device,
-	.dma_sync_sg_for_cpu =		pa11_dma_sync_sg_for_cpu,
-	.dma_sync_sg_for_device =	pa11_dma_sync_sg_for_device,
+	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
+	.sync_single_for_device = pa11_dma_sync_single_for_device,
+	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
+	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
 };
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 957b421..a4c7153 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -788,18 +788,27 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
 	return CCIO_IOVA(iovp, offset);
 }
 
+
+static dma_addr_t 
+ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
+		size_t size, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
+{
+	return ccio_map_single(dev, page_address(page) + offset, size,
+			direction);
+}
+
+
 /**
- * ccio_unmap_single - Unmap an address range from the IOMMU.
+ * ccio_unmap_page - Unmap an address range from the IOMMU.
  * @dev: The PCI device.
  * @addr: The start address of the DMA region.
  * @size: The length of the DMA region.
  * @direction: The direction of the DMA transaction (to/from device).
- *
- * This function implements the pci_unmap_single function.
  */
 static void 
-ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size, 
-		  enum dma_data_direction direction)
+ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size, 
+		enum dma_data_direction direction, struct dma_attrs *attrs)
 {
 	struct ioc *ioc;
 	unsigned long flags; 
@@ -828,7 +837,7 @@ ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
 }
 
 /**
- * ccio_alloc_consistent - Allocate a consistent DMA mapping.
+ * ccio_alloc - Allocate a consistent DMA mapping.
  * @dev: The PCI device.
  * @size: The length of the DMA region.
  * @dma_handle: The DMA address handed back to the device (not the cpu).
@@ -836,7 +845,8 @@ ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
  * This function implements the pci_alloc_consistent function.
  */
 static void * 
-ccio_alloc_consistent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag)
+ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
+		struct dma_attrs *attrs)
 {
       void *ret;
 #if 0
@@ -860,7 +870,7 @@ ccio_alloc_consistent(struct device *dev, size_t size, dma_addr_t *dma_handle, g
 }
 
 /**
- * ccio_free_consistent - Free a consistent DMA mapping.
+ * ccio_free - Free a consistent DMA mapping.
  * @dev: The PCI device.
  * @size: The length of the DMA region.
  * @cpu_addr: The cpu address returned from the ccio_alloc_consistent.
@@ -869,10 +879,10 @@ ccio_alloc_consistent(struct device *dev, size_t size, dma_addr_t *dma_handle, g
  * This function implements the pci_free_consistent function.
  */
 static void 
-ccio_free_consistent(struct device *dev, size_t size, void *cpu_addr, 
-		     dma_addr_t dma_handle)
+ccio_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
-	ccio_unmap_single(dev, dma_handle, size, 0);
+	ccio_unmap_page(dev, dma_handle, size, 0, NULL);
 	free_pages((unsigned long)cpu_addr, get_order(size));
 }
 
@@ -899,7 +909,7 @@ ccio_free_consistent(struct device *dev, size_t size, void *cpu_addr,
  */
 static int
 ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents, 
-	    enum dma_data_direction direction)
+	    enum dma_data_direction direction, struct dma_attrs *attrs)
 {
 	struct ioc *ioc;
 	int coalesced, filled = 0;
@@ -976,7 +986,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
  */
 static void 
 ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, 
-	      enum dma_data_direction direction)
+	      enum dma_data_direction direction, struct dma_attrs *attrs)
 {
 	struct ioc *ioc;
 
@@ -995,27 +1005,22 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 #ifdef CCIO_COLLECT_STATS
 		ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
 #endif
-		ccio_unmap_single(dev, sg_dma_address(sglist),
-				  sg_dma_len(sglist), direction);
+		ccio_unmap_page(dev, sg_dma_address(sglist),
+				  sg_dma_len(sglist), direction, NULL);
 		++sglist;
 	}
 
 	DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
 }
 
-static struct hppa_dma_ops ccio_ops = {
+static struct dma_map_ops ccio_ops = {
 	.dma_supported =	ccio_dma_supported,
-	.alloc_consistent =	ccio_alloc_consistent,
-	.alloc_noncoherent =	ccio_alloc_consistent,
-	.free_consistent =	ccio_free_consistent,
-	.map_single =		ccio_map_single,
-	.unmap_single =		ccio_unmap_single,
+	.alloc =		ccio_alloc,
+	.free =			ccio_free,
+	.map_page =		ccio_map_page,
+	.unmap_page =		ccio_unmap_page,
 	.map_sg = 		ccio_map_sg,
 	.unmap_sg = 		ccio_unmap_sg,
-	.dma_sync_single_for_cpu =	NULL,	/* NOP for U2/Uturn */
-	.dma_sync_single_for_device =	NULL,	/* NOP for U2/Uturn */
-	.dma_sync_sg_for_cpu =		NULL,	/* ditto */
-	.dma_sync_sg_for_device =		NULL,	/* ditto */
 };
 
 #ifdef CONFIG_PROC_FS
@@ -1064,7 +1069,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 			   ioc->msingle_calls, ioc->msingle_pages,
 			   (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
 
-		/* KLUGE - unmap_sg calls unmap_single for each mapped page */
+		/* KLUGE - unmap_sg calls unmap_page for each mapped page */
 		min = ioc->usingle_calls - ioc->usg_calls;
 		max = ioc->usingle_pages - ioc->usg_pages;
 		seq_printf(m, "pci_unmap_single: %8ld calls  %8ld pages (avg %d/1000)\n",
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 225049b..24ec9b8 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -780,8 +780,18 @@ sba_map_single(struct device *dev, void *addr, size_t size,
 }
 
 
+static dma_addr_t 
+sba_map_page(struct device *dev, struct page *page, unsigned long offset,
+		size_t size, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
+{
+	return sba_map_single(dev, page_address(page) + offset, size,
+			direction);
+}
+
+
 /**
- * sba_unmap_single - unmap one IOVA and free resources
+ * sba_unmap_page - unmap one IOVA and free resources
  * @dev: instance of PCI owned by the driver that's asking.
  * @iova:  IOVA of driver buffer previously mapped.
  * @size:  number of bytes mapped in driver buffer.
@@ -790,8 +800,8 @@ sba_map_single(struct device *dev, void *addr, size_t size,
  * See Documentation/DMA-API-HOWTO.txt
  */
 static void
-sba_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
-		 enum dma_data_direction direction)
+sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
+		enum dma_data_direction direction, struct dma_attrs *attrs)
 {
 	struct ioc *ioc;
 #if DELAYED_RESOURCE_CNT > 0
@@ -858,15 +868,15 @@ sba_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
 
 
 /**
- * sba_alloc_consistent - allocate/map shared mem for DMA
+ * sba_alloc - allocate/map shared mem for DMA
  * @hwdev: instance of PCI owned by the driver that's asking.
  * @size:  number of bytes mapped in driver buffer.
  * @dma_handle:  IOVA of new buffer.
  *
  * See Documentation/DMA-API-HOWTO.txt
  */
-static void *sba_alloc_consistent(struct device *hwdev, size_t size,
-					dma_addr_t *dma_handle, gfp_t gfp)
+static void *sba_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, struct dma_attrs *attrs)
 {
 	void *ret;
 
@@ -888,7 +898,7 @@ static void *sba_alloc_consistent(struct device *hwdev, size_t size,
 
 
 /**
- * sba_free_consistent - free/unmap shared mem for DMA
+ * sba_free - free/unmap shared mem for DMA
  * @hwdev: instance of PCI owned by the driver that's asking.
  * @size:  number of bytes mapped in driver buffer.
  * @vaddr:  virtual address IOVA of "consistent" buffer.
@@ -897,10 +907,10 @@ static void *sba_alloc_consistent(struct device *hwdev, size_t size,
  * See Documentation/DMA-API-HOWTO.txt
  */
 static void
-sba_free_consistent(struct device *hwdev, size_t size, void *vaddr,
-		    dma_addr_t dma_handle)
+sba_free(struct device *hwdev, size_t size, void *vaddr,
+		    dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
-	sba_unmap_single(hwdev, dma_handle, size, 0);
+	sba_unmap_page(hwdev, dma_handle, size, 0, NULL);
 	free_pages((unsigned long) vaddr, get_order(size));
 }
 
@@ -933,7 +943,7 @@ int dump_run_sg = 0;
  */
 static int
 sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	   enum dma_data_direction direction)
+	   enum dma_data_direction direction, struct dma_attrs *attrs)
 {
 	struct ioc *ioc;
 	int coalesced, filled = 0;
@@ -1016,7 +1026,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
  */
 static void 
 sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	     enum dma_data_direction direction)
+	     enum dma_data_direction direction, struct dma_attrs *attrs)
 {
 	struct ioc *ioc;
 #ifdef ASSERT_PDIR_SANITY
@@ -1040,7 +1050,8 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 
 	while (sg_dma_len(sglist) && nents--) {
 
-		sba_unmap_single(dev, sg_dma_address(sglist), sg_dma_len(sglist), direction);
+		sba_unmap_page(dev, sg_dma_address(sglist), sg_dma_len(sglist),
+				direction, NULL);
 #ifdef SBA_COLLECT_STATS
 		ioc->usg_pages += ((sg_dma_address(sglist) & ~IOVP_MASK) + sg_dma_len(sglist) + IOVP_SIZE - 1) >> PAGE_SHIFT;
 		ioc->usingle_calls--;	/* kluge since call is unmap_sg() */
@@ -1058,19 +1069,14 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 
 }
 
-static struct hppa_dma_ops sba_ops = {
+static struct dma_map_ops sba_ops = {
 	.dma_supported =	sba_dma_supported,
-	.alloc_consistent =	sba_alloc_consistent,
-	.alloc_noncoherent =	sba_alloc_consistent,
-	.free_consistent =	sba_free_consistent,
-	.map_single =		sba_map_single,
-	.unmap_single =		sba_unmap_single,
+	.alloc =		sba_alloc,
+	.free =			sba_free,
+	.map_page =		sba_map_page,
+	.unmap_page =		sba_unmap_page,
 	.map_sg =		sba_map_sg,
 	.unmap_sg =		sba_unmap_sg,
-	.dma_sync_single_for_cpu =	NULL,
-	.dma_sync_single_for_device =	NULL,
-	.dma_sync_sg_for_cpu =		NULL,
-	.dma_sync_sg_for_device =	NULL,
 };
 
 
-- 
1.9.1

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Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/nios2/Kconfig                   |   1 +
 arch/nios2/include/asm/dma-mapping.h | 123 ++---------------------------
 arch/nios2/mm/dma-mapping.c          | 147 +++++++++++++++++++----------------
 3 files changed, 85 insertions(+), 186 deletions(-)

diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 4375554..4b2504d 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -16,6 +16,7 @@ config NIOS2
 	select SOC_BUS
 	select SPARSE_IRQ
 	select USB_ARCH_HAS_HCD if USB_SUPPORT
+	select HAVE_DMA_ATTRS
 
 config GENERIC_CSUM
 	def_bool y
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index b556723..bec8ac8 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -10,131 +10,20 @@
 #ifndef _ASM_NIOS2_DMA_MAPPING_H
 #define _ASM_NIOS2_DMA_MAPPING_H
 
-#include <linux/scatterlist.h>
-#include <linux/cache.h>
-#include <asm/cacheflush.h>
+extern struct dma_map_ops nios2_dma_ops;
 
-static inline void __dma_sync_for_device(void *vaddr, size_t size,
-			      enum dma_data_direction direction)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
-	switch (direction) {
-	case DMA_FROM_DEVICE:
-		invalidate_dcache_range((unsigned long)vaddr,
-			(unsigned long)(vaddr + size));
-		break;
-	case DMA_TO_DEVICE:
-		/*
-		 * We just need to flush the caches here , but Nios2 flush
-		 * instruction will do both writeback and invalidate.
-		 */
-	case DMA_BIDIRECTIONAL: /* flush and invalidate */
-		flush_dcache_range((unsigned long)vaddr,
-			(unsigned long)(vaddr + size));
-		break;
-	default:
-		BUG();
-	}
-}
-
-static inline void __dma_sync_for_cpu(void *vaddr, size_t size,
-			      enum dma_data_direction direction)
-{
-	switch (direction) {
-	case DMA_BIDIRECTIONAL:
-	case DMA_FROM_DEVICE:
-		invalidate_dcache_range((unsigned long)vaddr,
-			(unsigned long)(vaddr + size));
-		break;
-	case DMA_TO_DEVICE:
-		break;
-	default:
-		BUG();
-	}
-}
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			   dma_addr_t *dma_handle, gfp_t flag);
-
-void dma_free_coherent(struct device *dev, size_t size,
-			 void *vaddr, dma_addr_t dma_handle);
-
-static inline dma_addr_t dma_map_single(struct device *dev, void *ptr,
-					size_t size,
-					enum dma_data_direction direction)
-{
-	BUG_ON(!valid_dma_direction(direction));
-	__dma_sync_for_device(ptr, size, direction);
-	return virt_to_phys(ptr);
-}
-
-static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
-				size_t size, enum dma_data_direction direction)
-{
-}
-
-extern int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
-	enum dma_data_direction direction);
-extern dma_addr_t dma_map_page(struct device *dev, struct page *page,
-	unsigned long offset, size_t size, enum dma_data_direction direction);
-extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
-	size_t size, enum dma_data_direction direction);
-extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-	int nhwentries, enum dma_data_direction direction);
-extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
-	size_t size, enum dma_data_direction direction);
-extern void dma_sync_single_for_device(struct device *dev,
-	dma_addr_t dma_handle, size_t size, enum dma_data_direction direction);
-extern void dma_sync_single_range_for_cpu(struct device *dev,
-	dma_addr_t dma_handle, unsigned long offset, size_t size,
-	enum dma_data_direction direction);
-extern void dma_sync_single_range_for_device(struct device *dev,
-	dma_addr_t dma_handle, unsigned long offset, size_t size,
-	enum dma_data_direction direction);
-extern void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
-	int nelems, enum dma_data_direction direction);
-extern void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-	int nelems, enum dma_data_direction direction);
-
-static inline int dma_supported(struct device *dev, u64 mask)
-{
-	return 1;
-}
-
-static inline int dma_set_mask(struct device *dev, u64 mask)
-{
-	if (!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-
-	*dev->dma_mask = mask;
-
-	return 0;
-}
-
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return 0;
+	return &nios2_dma_ops;
 }
 
 /*
-* dma_alloc_noncoherent() returns non-cacheable memory, so there's no need to
-* do any flushing here.
-*/
+ * dma_alloc_noncoherent() returns non-cacheable memory, so there's no need to
+ * do any flushing here.
+ */
 static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 				  enum dma_data_direction direction)
 {
 }
 
-/* drivers/base/dma-mapping.c */
-extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
-		void *cpu_addr, dma_addr_t dma_addr, size_t size);
-extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
-		void *cpu_addr, dma_addr_t dma_addr,
-		size_t size);
-
-#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s)
-#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s)
-
 #endif /* _ASM_NIOS2_DMA_MAPPING_H */
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index ac5da75..43c1149 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -20,9 +20,46 @@
 #include <linux/cache.h>
 #include <asm/cacheflush.h>
 
+static inline void __dma_sync_for_device(void *vaddr, size_t size,
+			      enum dma_data_direction direction)
+{
+	switch (direction) {
+	case DMA_FROM_DEVICE:
+		invalidate_dcache_range((unsigned long)vaddr,
+			(unsigned long)(vaddr + size));
+		break;
+	case DMA_TO_DEVICE:
+		/*
+		 * We just need to flush the caches here , but Nios2 flush
+		 * instruction will do both writeback and invalidate.
+		 */
+	case DMA_BIDIRECTIONAL: /* flush and invalidate */
+		flush_dcache_range((unsigned long)vaddr,
+			(unsigned long)(vaddr + size));
+		break;
+	default:
+		BUG();
+	}
+}
 
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			    dma_addr_t *dma_handle, gfp_t gfp)
+static inline void __dma_sync_for_cpu(void *vaddr, size_t size,
+			      enum dma_data_direction direction)
+{
+	switch (direction) {
+	case DMA_BIDIRECTIONAL:
+	case DMA_FROM_DEVICE:
+		invalidate_dcache_range((unsigned long)vaddr,
+			(unsigned long)(vaddr + size));
+		break;
+	case DMA_TO_DEVICE:
+		break;
+	default:
+		BUG();
+	}
+}
+
+static void *nios2_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs)
 {
 	void *ret;
 
@@ -45,24 +82,21 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 
 	return ret;
 }
-EXPORT_SYMBOL(dma_alloc_coherent);
 
-void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
-			dma_addr_t dma_handle)
+static void nios2_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
 	unsigned long addr = (unsigned long) CAC_ADDR((unsigned long) vaddr);
 
 	free_pages(addr, get_order(size));
 }
-EXPORT_SYMBOL(dma_free_coherent);
 
-int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
-		enum dma_data_direction direction)
+static int nios2_dma_map_sg(struct device *dev, struct scatterlist *sg,
+		int nents, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
 {
 	int i;
 
-	BUG_ON(!valid_dma_direction(direction));
-
 	for_each_sg(sg, sg, nents, i) {
 		void *addr;
 
@@ -75,40 +109,32 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
 
 	return nents;
 }
-EXPORT_SYMBOL(dma_map_sg);
 
-dma_addr_t dma_map_page(struct device *dev, struct page *page,
+static dma_addr_t nios2_dma_map_page(struct device *dev, struct page *page,
 			unsigned long offset, size_t size,
-			enum dma_data_direction direction)
+			enum dma_data_direction direction,
+			struct dma_attrs *attrs)
 {
-	void *addr;
-
-	BUG_ON(!valid_dma_direction(direction));
+	void *addr = page_address(page) + offset;
 
-	addr = page_address(page) + offset;
 	__dma_sync_for_device(addr, size, direction);
-
 	return page_to_phys(page) + offset;
 }
-EXPORT_SYMBOL(dma_map_page);
 
-void dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
-		    enum dma_data_direction direction)
+static void nios2_dma_unmap_page(struct device *dev, dma_addr_t dma_address,
+		size_t size, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
 {
-	BUG_ON(!valid_dma_direction(direction));
-
 	__dma_sync_for_cpu(phys_to_virt(dma_address), size, direction);
 }
-EXPORT_SYMBOL(dma_unmap_page);
 
-void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
-		  enum dma_data_direction direction)
+static void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+		int nhwentries, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
 {
 	void *addr;
 	int i;
 
-	BUG_ON(!valid_dma_direction(direction));
-
 	if (direction == DMA_TO_DEVICE)
 		return;
 
@@ -118,69 +144,52 @@ void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
 			__dma_sync_for_cpu(addr, sg->length, direction);
 	}
 }
-EXPORT_SYMBOL(dma_unmap_sg);
-
-void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
-			     size_t size, enum dma_data_direction direction)
-{
-	BUG_ON(!valid_dma_direction(direction));
 
-	__dma_sync_for_cpu(phys_to_virt(dma_handle), size, direction);
-}
-EXPORT_SYMBOL(dma_sync_single_for_cpu);
-
-void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
-				size_t size, enum dma_data_direction direction)
-{
-	BUG_ON(!valid_dma_direction(direction));
-
-	__dma_sync_for_device(phys_to_virt(dma_handle), size, direction);
-}
-EXPORT_SYMBOL(dma_sync_single_for_device);
-
-void dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
-					unsigned long offset, size_t size,
-					enum dma_data_direction direction)
+static void nios2_dma_sync_single_for_cpu(struct device *dev,
+		dma_addr_t dma_handle, size_t size,
+		enum dma_data_direction direction)
 {
-	BUG_ON(!valid_dma_direction(direction));
-
 	__dma_sync_for_cpu(phys_to_virt(dma_handle), size, direction);
 }
-EXPORT_SYMBOL(dma_sync_single_range_for_cpu);
 
-void dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
-					unsigned long offset, size_t size,
-					enum dma_data_direction direction)
+static void nios2_dma_sync_single_for_device(struct device *dev,
+		dma_addr_t dma_handle, size_t size,
+		enum dma_data_direction direction)
 {
-	BUG_ON(!valid_dma_direction(direction));
-
 	__dma_sync_for_device(phys_to_virt(dma_handle), size, direction);
 }
-EXPORT_SYMBOL(dma_sync_single_range_for_device);
 
-void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
-			 enum dma_data_direction direction)
+static void nios2_dma_sync_sg_for_cpu(struct device *dev,
+		struct scatterlist *sg, int nelems,
+		enum dma_data_direction direction)
 {
 	int i;
 
-	BUG_ON(!valid_dma_direction(direction));
-
 	/* Make sure that gcc doesn't leave the empty loop body.  */
 	for_each_sg(sg, sg, nelems, i)
 		__dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
 }
-EXPORT_SYMBOL(dma_sync_sg_for_cpu);
 
-void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-				int nelems, enum dma_data_direction direction)
+static void nios2_dma_sync_sg_for_device(struct device *dev,
+		struct scatterlist *sg, int nelems,
+		enum dma_data_direction direction)
 {
 	int i;
 
-	BUG_ON(!valid_dma_direction(direction));
-
 	/* Make sure that gcc doesn't leave the empty loop body.  */
 	for_each_sg(sg, sg, nelems, i)
 		__dma_sync_for_device(sg_virt(sg), sg->length, direction);
 
 }
-EXPORT_SYMBOL(dma_sync_sg_for_device);
+
+struct dma_map_ops nios2_dma_ops = {
+	.alloc                  = nios2_dma_alloc,
+	.free                   = nios2_dma_free,
+	.map_page               = nios2_dma_map_page,
+	.map_sg                 = nios2_dma_map_sg,
+	.sync_single_for_device = nios2_dma_sync_single_for_device,
+	.sync_single_for_cpu    = nios2_dma_sync_single_for_cpu,
+	.sync_sg_for_cpu        = nios2_dma_sync_sg_for_cpu,
+	.sync_sg_for_dev        = nios2_dma_sync_sg_for_device,
+};
+EXPORT_SYMBOL(nios2_dma_ops);
-- 
1.9.1

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From - Thu Nov 08 21:38:01 2018
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Path: news.gmane.org!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.ports.sparc,gmane.linux.kernel.iommu
Subject: [PATCH 05/16] c6x: convert to dma_map_ops
Date: Mon,  9 Nov 2015 19:17:10 +0100
Lines: 292
Approved: news@gmane.org
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To: Andrew Morton <akpm@linux-foundation.org>,
	Haavard Skinnemoen <hskinnemoen@gmail.com>,
	Hans-Christian Egtvedt <egtvedt@samfundet.no>,
	Steven Miao <realmz6@gmail.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/7592>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/c6x/Kconfig                   |  2 +
 arch/c6x/include/asm/dma-mapping.h | 96 ++------------------------------------
 arch/c6x/kernel/dma.c              | 91 ++++++++++++++++--------------------
 3 files changed, 47 insertions(+), 142 deletions(-)

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 77ea09b..8602f72 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -17,6 +17,8 @@ config C6X
 	select OF_EARLY_FLATTREE
 	select GENERIC_CLOCKEVENTS
 	select MODULES_USE_ELF_RELA
+	select ARCH_NO_COHERENT_DMA_MMAP
+	select HAVE_DMA_ATTRS
 
 config MMU
 	def_bool n
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index bbd7774..6aa20fd 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -12,104 +12,18 @@
 #ifndef _ASM_C6X_DMA_MAPPING_H
 #define _ASM_C6X_DMA_MAPPING_H
 
-#include <linux/dma-debug.h>
-#include <asm-generic/dma-coherent.h>
-
-#define dma_supported(d, m)	1
-
-static inline void dma_sync_single_range_for_device(struct device *dev,
-						    dma_addr_t addr,
-						    unsigned long offset,
-						    size_t size,
-						    enum dma_data_direction dir)
-{
-}
-
-static inline int dma_set_mask(struct device *dev, u64 dma_mask)
-{
-	if (!dev->dma_mask || !dma_supported(dev, dma_mask))
-		return -EIO;
-
-	*dev->dma_mask = dma_mask;
-
-	return 0;
-}
-
 /*
  * DMA errors are defined by all-bits-set in the DMA address.
  */
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	debug_dma_mapping_error(dev, dma_addr);
-	return dma_addr == ~0;
-}
-
-extern dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
-				 size_t size, enum dma_data_direction dir);
+#define DMA_ERROR_CODE ~0
 
-extern void dma_unmap_single(struct device *dev, dma_addr_t handle,
-			     size_t size, enum dma_data_direction dir);
+extern struct dma_map_ops c6x_dma_ops;
 
-extern int dma_map_sg(struct device *dev, struct scatterlist *sglist,
-		      int nents, enum dma_data_direction direction);
-
-extern void dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
-			 int nents, enum dma_data_direction direction);
-
-static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
-				      unsigned long offset, size_t size,
-				      enum dma_data_direction dir)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
-	dma_addr_t handle;
-
-	handle = dma_map_single(dev, page_address(page) + offset, size, dir);
-
-	debug_dma_map_page(dev, page, offset, size, dir, handle, false);
-
-	return handle;
-}
-
-static inline void dma_unmap_page(struct device *dev, dma_addr_t handle,
-		size_t size, enum dma_data_direction dir)
-{
-	dma_unmap_single(dev, handle, size, dir);
-
-	debug_dma_unmap_page(dev, handle, size, dir, false);
-}
-
-extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
-				    size_t size, enum dma_data_direction dir);
-
-extern void dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
-				       size_t size,
-				       enum dma_data_direction dir);
-
-extern void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
-				int nents, enum dma_data_direction dir);
-
-extern void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-				   int nents, enum dma_data_direction dir);
-
-extern void coherent_mem_init(u32 start, u32 size);
-extern void *dma_alloc_coherent(struct device *, size_t, dma_addr_t *, gfp_t);
-extern void dma_free_coherent(struct device *, size_t, void *, dma_addr_t);
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent((d), (s), (h), (f))
-#define dma_free_noncoherent(d, s, v, h)  dma_free_coherent((d), (s), (v), (h))
-
-/* Not supported for now */
-static inline int dma_mmap_coherent(struct device *dev,
-				    struct vm_area_struct *vma, void *cpu_addr,
-				    dma_addr_t dma_addr, size_t size)
-{
-	return -EINVAL;
+	return &c6x_dma_ops;
 }
 
-static inline int dma_get_sgtable(struct device *dev, struct sg_table *sgt,
-				  void *cpu_addr, dma_addr_t dma_addr,
-				  size_t size)
-{
-	return -EINVAL;
-}
+#include <asm-generic/dma-mapping-common.h>
 
 #endif	/* _ASM_C6X_DMA_MAPPING_H */
diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
index ab7b12d..fd1d5c0 100644
--- a/arch/c6x/kernel/dma.c
+++ b/arch/c6x/kernel/dma.c
@@ -36,110 +36,99 @@ static void c6x_dma_sync(dma_addr_t handle, size_t size,
 	}
 }
 
-dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
-			  enum dma_data_direction dir)
+static dma_addr_t c6x_dma_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size, enum dma_data_direction dir,
+		struct dma_attrs *attrs)
 {
-	dma_addr_t addr = virt_to_phys(ptr);
+	dma_addr_t handle = virt_to_phys(page_address(page) + offset);
 
-	c6x_dma_sync(addr, size, dir);
-
-	debug_dma_map_page(dev, virt_to_page(ptr),
-			   (unsigned long)ptr & ~PAGE_MASK, size,
-			   dir, addr, true);
-	return addr;
+	c6x_dma_sync(handle, size, dir);
+	return handle;
 }
-EXPORT_SYMBOL(dma_map_single);
-
 
-void dma_unmap_single(struct device *dev, dma_addr_t handle,
-		      size_t size, enum dma_data_direction dir)
+static void c6x_dma_unmap_page(struct device *dev, dma_addr_t handle,
+		size_t size, enum dma_data_direction dir, struct dma_attrs *attrs)
 {
 	c6x_dma_sync(handle, size, dir);
-
-	debug_dma_unmap_page(dev, handle, size, dir, true);
 }
-EXPORT_SYMBOL(dma_unmap_single);
-
 
-int dma_map_sg(struct device *dev, struct scatterlist *sglist,
-	       int nents, enum dma_data_direction dir)
+static int c6x_dma_map_sg(struct device *dev, struct scatterlist *sglist,
+		int nents, enum dma_data_direction dir, struct dma_attrs *attrs)
 {
 	struct scatterlist *sg;
 	int i;
 
 	for_each_sg(sglist, sg, nents, i)
-		sg->dma_address = dma_map_single(dev, sg_virt(sg), sg->length,
-						 dir);
-
-	debug_dma_map_sg(dev, sglist, nents, nents, dir);
+		sg->dma_address = sg_phys(sg);
+		c6x_dma_sync(sg->dma_address, sg->length, dir);
+	}
 
 	return nents;
 }
-EXPORT_SYMBOL(dma_map_sg);
-
 
-void dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
-		  int nents, enum dma_data_direction dir)
+static void c6x_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
+		  int nents, enum dma_data_direction dir,
+		  struct dma_attrs *attrs)
 {
 	struct scatterlist *sg;
 	int i;
 
 	for_each_sg(sglist, sg, nents, i)
-		dma_unmap_single(dev, sg_dma_address(sg), sg->length, dir);
+		c6x_dma_sync(sg_dma_address(sg), sg->length, dir);
 
-	debug_dma_unmap_sg(dev, sglist,	nents, dir);
 }
-EXPORT_SYMBOL(dma_unmap_sg);
 
-void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
-			     size_t size, enum dma_data_direction dir)
+static void c6x_dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
+		size_t size, enum dma_data_direction dir)
 {
 	c6x_dma_sync(handle, size, dir);
 
-	debug_dma_sync_single_for_cpu(dev, handle, size, dir);
 }
-EXPORT_SYMBOL(dma_sync_single_for_cpu);
-
 
-void dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
-				size_t size, enum dma_data_direction dir)
+static void c6x_dma_sync_single_for_device(struct device *dev,
+		dma_addr_t handle, size_t size, enum dma_data_direction dir)
 {
 	c6x_dma_sync(handle, size, dir);
 
-	debug_dma_sync_single_for_device(dev, handle, size, dir);
 }
-EXPORT_SYMBOL(dma_sync_single_for_device);
 
-
-void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist,
-			 int nents, enum dma_data_direction dir)
+static void c6x_dma_sync_sg_for_cpu(struct device *dev,
+		struct scatterlist *sglist, int nents,
+		enum dma_data_direction dir)
 {
 	struct scatterlist *sg;
 	int i;
 
 	for_each_sg(sglist, sg, nents, i)
-		dma_sync_single_for_cpu(dev, sg_dma_address(sg),
+		c6x_dma_sync_single_for_cpu(dev, sg_dma_address(sg),
 					sg->length, dir);
 
-	debug_dma_sync_sg_for_cpu(dev, sglist, nents, dir);
 }
-EXPORT_SYMBOL(dma_sync_sg_for_cpu);
-
 
-void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
-			    int nents, enum dma_data_direction dir)
+static void c6x_dma_sync_sg_for_device(struct device *dev,
+		struct scatterlist *sglist, int nents,
+		enum dma_data_direction dir)
 {
 	struct scatterlist *sg;
 	int i;
 
 	for_each_sg(sglist, sg, nents, i)
-		dma_sync_single_for_device(dev, sg_dma_address(sg),
+		c6x_dma_sync_single_for_device(dev, sg_dma_address(sg),
 					   sg->length, dir);
 
-	debug_dma_sync_sg_for_device(dev, sglist, nents, dir);
 }
-EXPORT_SYMBOL(dma_sync_sg_for_device);
 
+struct dma_map_ops c6x_dma_ops = {
+	.alloc			= c6x_dma_alloc,
+	.free			= c6x_dma_free,
+	.map_page		= c6x_dma_map_page,
+	.map_sg			= c6x_dma_map_sg,
+	.sync_single_for_device	= c6x_dma_sync_single_for_device,
+	.sync_single_for_cpu	= c6x_dma_sync_single_for_cpu,
+	.sync_sg_for_device	= c6x_dma_sync_sg_for_device,
+	.sync_sg_for_cpu	= c6x_dma_sync_sg_for_cpu,
+};
+EXPORT_SYMBOL(c6x_dma_ops);
 
 /* Number of entries preallocated for DMA-API debugging */
 #define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-- 
1.9.1


From - Thu Nov 08 21:38:02 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.ports.sparc,gmane.linux.kernel.iommu
Subject: [PATCH 10/16] mn10300: convert to dma_map_ops
Date: Mon,  9 Nov 2015 19:17:15 +0100
Lines: 296
Approved: news@gmane.org
Message-ID: <1447093041-21832-11-git-send-email-hch@lst.de>
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To: Andrew Morton <akpm@linux-foundation.org>,
	Haavard Skinnemoen <hskinnemoen@gmail.com>,
	Hans-Christian Egtvedt <egtvedt@samfundet.no>,
	Steven Miao <realmz6@gmail.com>,
	Ley Foon Tan <lftan@altera.com>,
	David Howells <dhowells@redhat.com>,
	Koichi Yasutake <yasutake.koichi@jp.panasonic.com>,
	Chris Metcalf <cmetcalf@ezchip.com>,
	linux-snps-arc@lists.infraded.org, linux-c6x-dev@linux-c6x.org,
	linux-cris-kernel@axis.com, linux-parisc@vger.kernel.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/7593>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/mn10300/Kconfig                   |   2 +
 arch/mn10300/include/asm/dma-mapping.h | 161 +--------------------------------
 arch/mn10300/mm/dma-alloc.c            |  67 ++++++++++++--
 3 files changed, 67 insertions(+), 163 deletions(-)

diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 4434b54..1bf3af2 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -13,6 +13,8 @@ config MN10300
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
 	select HAVE_DEBUG_STACKOVERFLOW
+	select ARCH_NO_COHERENT_DMA_MMAP
+	select HAVE_DMA_ATTRS
 
 config AM33_2
 	def_bool n
diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index a18abfc..e69b013 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -11,154 +11,14 @@
 #ifndef _ASM_DMA_MAPPING_H
 #define _ASM_DMA_MAPPING_H
 
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-
 #include <asm/cache.h>
 #include <asm/io.h>
 
-/*
- * See Documentation/DMA-API.txt for the description of how the
- * following DMA API should work.
- */
-
-extern void *dma_alloc_coherent(struct device *dev, size_t size,
-				dma_addr_t *dma_handle, int flag);
-
-extern void dma_free_coherent(struct device *dev, size_t size,
-			      void *vaddr, dma_addr_t dma_handle);
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent((d), (s), (h), (f))
-#define dma_free_noncoherent(d, s, v, h)  dma_free_coherent((d), (s), (v), (h))
-
-static inline
-dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
-			  enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-	mn10300_dcache_flush_inv();
-	return virt_to_bus(ptr);
-}
-
-static inline
-void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
-		      enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-}
-
-static inline
-int dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	       enum dma_data_direction direction)
-{
-	struct scatterlist *sg;
-	int i;
-
-	BUG_ON(!valid_dma_direction(direction));
-	WARN_ON(nents == 0 || sglist[0].length == 0);
-
-	for_each_sg(sglist, sg, nents, i) {
-		BUG_ON(!sg_page(sg));
-
-		sg->dma_address = sg_phys(sg);
-	}
-
-	mn10300_dcache_flush_inv();
-	return nents;
-}
-
-static inline
-void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
-		  enum dma_data_direction direction)
-{
-	BUG_ON(!valid_dma_direction(direction));
-}
-
-static inline
-dma_addr_t dma_map_page(struct device *dev, struct page *page,
-			unsigned long offset, size_t size,
-			enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-	return page_to_bus(page) + offset;
-}
-
-static inline
-void dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
-		    enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-}
-
-static inline
-void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
-			     size_t size, enum dma_data_direction direction)
-{
-}
-
-static inline
-void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
-				size_t size, enum dma_data_direction direction)
-{
-	mn10300_dcache_flush_inv();
-}
-
-static inline
-void dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
-				   unsigned long offset, size_t size,
-				   enum dma_data_direction direction)
-{
-}
-
-static inline void
-dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
-				 unsigned long offset, size_t size,
-				 enum dma_data_direction direction)
-{
-	mn10300_dcache_flush_inv();
-}
-
+extern struct dma_map_ops mn10300_dma_ops;
 
-static inline
-void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
-			 int nelems, enum dma_data_direction direction)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
-}
-
-static inline
-void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-			    int nelems, enum dma_data_direction direction)
-{
-	mn10300_dcache_flush_inv();
-}
-
-static inline
-int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return 0;
-}
-
-static inline
-int dma_supported(struct device *dev, u64 mask)
-{
-	/*
-	 * we fall back to GFP_DMA when the mask isn't all 1s, so we can't
-	 * guarantee allocations that must be within a tighter range than
-	 * GFP_DMA
-	 */
-	if (mask < 0x00ffffff)
-		return 0;
-	return 1;
-}
-
-static inline
-int dma_set_mask(struct device *dev, u64 mask)
-{
-	if (!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-
-	*dev->dma_mask = mask;
-	return 0;
+	return &mn10300_dma_ops;
 }
 
 static inline
@@ -168,19 +28,6 @@ void dma_cache_sync(void *vaddr, size_t size,
 	mn10300_dcache_flush_inv();
 }
 
-/* Not supported for now */
-static inline int dma_mmap_coherent(struct device *dev,
-				    struct vm_area_struct *vma, void *cpu_addr,
-				    dma_addr_t dma_addr, size_t size)
-{
-	return -EINVAL;
-}
-
-static inline int dma_get_sgtable(struct device *dev, struct sg_table *sgt,
-				  void *cpu_addr, dma_addr_t dma_addr,
-				  size_t size)
-{
-	return -EINVAL;
-}
+#include <asm-generic/dma-mapping-common.h>
 
 #endif
diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c
index e244ebe..8842394 100644
--- a/arch/mn10300/mm/dma-alloc.c
+++ b/arch/mn10300/mm/dma-alloc.c
@@ -20,8 +20,8 @@
 
 static unsigned long pci_sram_allocated = 0xbc000000;
 
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			 dma_addr_t *dma_handle, int gfp)
+static void *mn10300_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs)
 {
 	unsigned long addr;
 	void *ret;
@@ -61,10 +61,9 @@ done:
 	printk("dma_alloc_coherent() = %p [%x]\n", ret, *dma_handle);
 	return ret;
 }
-EXPORT_SYMBOL(dma_alloc_coherent);
 
-void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
-		       dma_addr_t dma_handle)
+static void mn10300_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
 	unsigned long addr = (unsigned long) vaddr & ~0x20000000;
 
@@ -73,4 +72,60 @@ void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
 
 	free_pages(addr, get_order(size));
 }
-EXPORT_SYMBOL(dma_free_coherent);
+
+static int mn10300_dma_map_sg(struct device *dev, struct scatterlist *sglist,
+		int nents, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
+{
+	struct scatterlist *sg;
+	int i;
+
+	for_each_sg(sglist, sg, nents, i) {
+		BUG_ON(!sg_page(sg));
+
+		sg->dma_address = sg_phys(sg);
+	}
+
+	mn10300_dcache_flush_inv();
+	return nents;
+}
+
+static dma_addr_t mn10300_dma_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size,
+		enum dma_data_direction direction, struct dma_attrs *attrs)
+{
+	return page_to_bus(page) + offset;
+}
+
+static void mn10300_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
+				size_t size, enum dma_data_direction direction)
+{
+	mn10300_dcache_flush_inv();
+}
+
+static void mn10300_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+			    int nelems, enum dma_data_direction direction)
+{
+	mn10300_dcache_flush_inv();
+}
+
+static int mn10300_dma_supported(struct device *dev, u64 mask)
+{
+	/*
+	 * we fall back to GFP_DMA when the mask isn't all 1s, so we can't
+	 * guarantee allocations that must be within a tighter range than
+	 * GFP_DMA
+	 */
+	if (mask < 0x00ffffff)
+		return 0;
+	return 1;
+}
+
+struct dma_map_ops mn10300_dma_ops = {
+	.alloc			= mn10300_dma_alloc,
+	.free			= mn10300_dma_free,
+	.map_page		= mn10300_dma_map_page,
+	.map_sg			= mn10300_dma_map_sg,
+	.sync_single_for_device	= mn10300_dma_sync_single_for_device,
+	.sync_sg_for_device	= mn10300_dma_sync_sg_for_device,
+};
-- 
1.9.1


From - Thu Nov 08 21:38:02 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.ports.sparc,gmane.linux.kernel.iommu
Subject: [PATCH 11/16] m68k: convert to dma_map_ops
Date: Mon,  9 Nov 2015 19:17:16 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/7594>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/m68k/Kconfig                   |   1 +
 arch/m68k/include/asm/dma-mapping.h | 112 ++----------------------------------
 arch/m68k/kernel/dma.c              |  61 +++++++++-----------
 3 files changed, 32 insertions(+), 142 deletions(-)

diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 498b567..d5d75b3 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -23,6 +23,7 @@ config M68K
 	select MODULES_USE_ELF_RELA
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
+	select HAVE_DMA_ATTRS
 
 config RWSEM_GENERIC_SPINLOCK
 	bool
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 05aa535..2c082a6 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -1,123 +1,19 @@
 #ifndef _M68K_DMA_MAPPING_H
 #define _M68K_DMA_MAPPING_H
 
-#include <asm/cache.h>
+extern struct dma_map_ops m68k_dma_ops;
 
-struct scatterlist;
-
-static inline int dma_supported(struct device *dev, u64 mask)
-{
-	return 1;
-}
-
-static inline int dma_set_mask(struct device *dev, u64 mask)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
-	return 0;
+        return &m68k_dma_ops;
 }
 
-extern void *dma_alloc_coherent(struct device *, size_t,
-				dma_addr_t *, gfp_t);
-extern void dma_free_coherent(struct device *, size_t,
-			      void *, dma_addr_t);
+#include <asm-generic/dma-mapping-common.h>
 
-static inline void *dma_alloc_attrs(struct device *dev, size_t size,
-				    dma_addr_t *dma_handle, gfp_t flag,
-				    struct dma_attrs *attrs)
-{
-	/* attrs is not supported and ignored */
-	return dma_alloc_coherent(dev, size, dma_handle, flag);
-}
-
-static inline void dma_free_attrs(struct device *dev, size_t size,
-				  void *cpu_addr, dma_addr_t dma_handle,
-				  struct dma_attrs *attrs)
-{
-	/* attrs is not supported and ignored */
-	dma_free_coherent(dev, size, cpu_addr, dma_handle);
-}
-
-static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
-					  dma_addr_t *handle, gfp_t flag)
-{
-	return dma_alloc_coherent(dev, size, handle, flag);
-}
-static inline void dma_free_noncoherent(struct device *dev, size_t size,
-					void *addr, dma_addr_t handle)
-{
-	dma_free_coherent(dev, size, addr, handle);
-}
 static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 				  enum dma_data_direction dir)
 {
 	/* we use coherent allocation, so not much to do here. */
 }
 
-extern dma_addr_t dma_map_single(struct device *, void *, size_t,
-				 enum dma_data_direction);
-static inline void dma_unmap_single(struct device *dev, dma_addr_t addr,
-				    size_t size, enum dma_data_direction dir)
-{
-}
-
-extern dma_addr_t dma_map_page(struct device *, struct page *,
-			       unsigned long, size_t size,
-			       enum dma_data_direction);
-static inline void dma_unmap_page(struct device *dev, dma_addr_t address,
-				  size_t size, enum dma_data_direction dir)
-{
-}
-
-extern int dma_map_sg(struct device *, struct scatterlist *, int,
-		      enum dma_data_direction);
-static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-				int nhwentries, enum dma_data_direction dir)
-{
-}
-
-extern void dma_sync_single_for_device(struct device *, dma_addr_t, size_t,
-				       enum dma_data_direction);
-extern void dma_sync_sg_for_device(struct device *, struct scatterlist *, int,
-				   enum dma_data_direction);
-
-static inline void dma_sync_single_range_for_device(struct device *dev,
-		dma_addr_t dma_handle, unsigned long offset, size_t size,
-		enum dma_data_direction direction)
-{
-	/* just sync everything for now */
-	dma_sync_single_for_device(dev, dma_handle, offset + size, direction);
-}
-
-static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
-					   size_t size, enum dma_data_direction dir)
-{
-}
-
-static inline void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
-				       int nents, enum dma_data_direction dir)
-{
-}
-
-static inline void dma_sync_single_range_for_cpu(struct device *dev,
-		dma_addr_t dma_handle, unsigned long offset, size_t size,
-		enum dma_data_direction direction)
-{
-	/* just sync everything for now */
-	dma_sync_single_for_cpu(dev, dma_handle, offset + size, direction);
-}
-
-static inline int dma_mapping_error(struct device *dev, dma_addr_t handle)
-{
-	return 0;
-}
-
-/* drivers/base/dma-mapping.c */
-extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
-			   void *cpu_addr, dma_addr_t dma_addr, size_t size);
-extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
-				  void *cpu_addr, dma_addr_t dma_addr,
-				  size_t size);
-
-#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s)
-#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s)
-
 #endif  /* _M68K_DMA_MAPPING_H */
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index 564665f..cbc78b4 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -18,8 +18,8 @@
 
 #if defined(CONFIG_MMU) && !defined(CONFIG_COLDFIRE)
 
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			 dma_addr_t *handle, gfp_t flag)
+static void *m68k_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+		gfp_t flag, struct dma_attrs *attrs)
 {
 	struct page *page, **map;
 	pgprot_t pgprot;
@@ -61,8 +61,8 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 	return addr;
 }
 
-void dma_free_coherent(struct device *dev, size_t size,
-		       void *addr, dma_addr_t handle)
+static void m68k_dma_free(struct device *dev, size_t size, void *addr,
+		dma_addr_t handle, struct dma_attrs *attrs)
 {
 	pr_debug("dma_free_coherent: %p, %x\n", addr, handle);
 	vfree(addr);
@@ -72,8 +72,8 @@ void dma_free_coherent(struct device *dev, size_t size,
 
 #include <asm/cacheflush.h>
 
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			   dma_addr_t *dma_handle, gfp_t gfp)
+static void *m68k_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs)
 {
 	void *ret;
 	/* ignore region specifiers */
@@ -90,19 +90,16 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 	return ret;
 }
 
-void dma_free_coherent(struct device *dev, size_t size,
-			 void *vaddr, dma_addr_t dma_handle)
+static void m68k_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
 	free_pages((unsigned long)vaddr, get_order(size));
 }
 
 #endif /* CONFIG_MMU && !CONFIG_COLDFIRE */
 
-EXPORT_SYMBOL(dma_alloc_coherent);
-EXPORT_SYMBOL(dma_free_coherent);
-
-void dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
-				size_t size, enum dma_data_direction dir)
+static void m68k_dma_sync_single_for_device(struct device *dev,
+		dma_addr_t handle, size_t size, enum dma_data_direction dir)
 {
 	switch (dir) {
 	case DMA_BIDIRECTIONAL:
@@ -118,10 +115,9 @@ void dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
 		break;
 	}
 }
-EXPORT_SYMBOL(dma_sync_single_for_device);
 
-void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
-			    int nents, enum dma_data_direction dir)
+static void m68k_dma_sync_sg_for_device(struct device *dev,
+		struct scatterlist *sglist, int nents, enum dma_data_direction dir)
 {
 	int i;
 	struct scatterlist *sg;
@@ -131,31 +127,19 @@ void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
 					   dir);
 	}
 }
-EXPORT_SYMBOL(dma_sync_sg_for_device);
-
-dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size,
-			  enum dma_data_direction dir)
-{
-	dma_addr_t handle = virt_to_bus(addr);
-
-	dma_sync_single_for_device(dev, handle, size, dir);
-	return handle;
-}
-EXPORT_SYMBOL(dma_map_single);
 
-dma_addr_t dma_map_page(struct device *dev, struct page *page,
-			unsigned long offset, size_t size,
-			enum dma_data_direction dir)
+static dma_addr_t m68k_dma_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size, enum dma_data_direction dir,
+		struct dma_attrs *attrs)
 {
 	dma_addr_t handle = page_to_phys(page) + offset;
 
 	dma_sync_single_for_device(dev, handle, size, dir);
 	return handle;
 }
-EXPORT_SYMBOL(dma_map_page);
 
-int dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	       enum dma_data_direction dir)
+static int m68k_dma_map_sg(struct device *dev, struct scatterlist *sglist,
+		int nents, enum dma_data_direction dir, struct dma_attrs *attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -167,4 +151,13 @@ int dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	}
 	return nents;
 }
-EXPORT_SYMBOL(dma_map_sg);
+
+struct dma_map_ops m68k_dma_ops = {
+	.alloc			= m68k_dma_alloc,
+	.free			= m68k_dma_free,
+	.map_page		= m68k_dma_map_page,
+	.map_sg			= m68k_dma_map_sg,
+	.sync_single_for_device	= m68k_dma_sync_single_for_device,
+	.sync_sg_for_device	= m68k_dma_sync_sg_for_device,
+};
+EXPORT_SYMBOL(m68k_dma_ops);
-- 
1.9.1


From - Thu Nov 08 21:38:02 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.ports.sparc,gmane.linux.kernel.iommu
Subject: [PATCH 08/16] frv: convert to dma_map_ops
Date: Mon,  9 Nov 2015 19:17:13 +0100
Lines: 398
Approved: news@gmane.org
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To: Andrew Morton <akpm@linux-foundation.org>,
	Haavard Skinnemoen <hskinnemoen@gmail.com>,
	Hans-Christian Egtvedt <egtvedt@samfundet.no>,
	Steven Miao <realmz6@gmail.com>,
	Ley Foon Tan <lftan@altera.com>,
	David Howells <dhowells@redhat.com>,
	Koichi Yasutake <yasutake.koichi@jp.panasonic.com>,
	Chris Metcalf <cmetcalf@ezchip.com>,
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	linux-cris-kernel@axis.com, linux-parisc@vger.kernel.org,
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	sparclinux@vger.kernel.org, iommu@lists.linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26140>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/frv/Kconfig                      |   2 +
 arch/frv/include/asm/dma-mapping.h    | 132 ++--------------------------------
 arch/frv/mb93090-mb00/pci-dma-nommu.c |  72 ++++++++++++-------
 arch/frv/mb93090-mb00/pci-dma.c       |  74 ++++++++++++-------
 4 files changed, 101 insertions(+), 179 deletions(-)

diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index 34aa193..d4fc724 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -14,6 +14,8 @@ config FRV
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
 	select HAVE_DEBUG_STACKOVERFLOW
+	select ARCH_NO_COHERENT_DMA_MMAP
+	select HAVE_DMA_ATTRS
 
 config ZONE_DMA
 	bool
diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 2840adc..750951c 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -1,128 +1,17 @@
 #ifndef _ASM_DMA_MAPPING_H
 #define _ASM_DMA_MAPPING_H
 
-#include <linux/device.h>
-#include <linux/scatterlist.h>
 #include <asm/cache.h>
 #include <asm/cacheflush.h>
-#include <asm/io.h>
-
-/*
- * See Documentation/DMA-API.txt for the description of how the
- * following DMA API should work.
- */
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
 
 extern unsigned long __nongprelbss dma_coherent_mem_start;
 extern unsigned long __nongprelbss dma_coherent_mem_end;
 
-void *dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t gfp);
-void dma_free_coherent(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle);
-
-extern dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
-				 enum dma_data_direction direction);
-
-static inline
-void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
-		      enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-}
-
-extern int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
-		      enum dma_data_direction direction);
-
-static inline
-void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
-	     enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-}
-
-extern
-dma_addr_t dma_map_page(struct device *dev, struct page *page, unsigned long offset,
-			size_t size, enum dma_data_direction direction);
-
-static inline
-void dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
-		    enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-}
-
-
-static inline
-void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
-			     enum dma_data_direction direction)
-{
-}
-
-static inline
-void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size,
-				enum dma_data_direction direction)
-{
-	flush_write_buffers();
-}
+extern struct dma_map_ops frv_dma_ops;
 
-static inline
-void dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
-				   unsigned long offset, size_t size,
-				   enum dma_data_direction direction)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
-}
-
-static inline
-void dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
-				      unsigned long offset, size_t size,
-				      enum dma_data_direction direction)
-{
-	flush_write_buffers();
-}
-
-static inline
-void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
-			 enum dma_data_direction direction)
-{
-}
-
-static inline
-void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
-			    enum dma_data_direction direction)
-{
-	flush_write_buffers();
-}
-
-static inline
-int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return 0;
-}
-
-static inline
-int dma_supported(struct device *dev, u64 mask)
-{
-        /*
-         * we fall back to GFP_DMA when the mask isn't all 1s,
-         * so we can't guarantee allocations that must be
-         * within a tighter range than GFP_DMA..
-         */
-        if (mask < 0x00ffffff)
-                return 0;
-
-	return 1;
-}
-
-static inline
-int dma_set_mask(struct device *dev, u64 mask)
-{
-	if (!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-
-	*dev->dma_mask = mask;
-
-	return 0;
+	return &frv_dma_ops;
 }
 
 static inline
@@ -132,19 +21,6 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	flush_write_buffers();
 }
 
-/* Not supported for now */
-static inline int dma_mmap_coherent(struct device *dev,
-				    struct vm_area_struct *vma, void *cpu_addr,
-				    dma_addr_t dma_addr, size_t size)
-{
-	return -EINVAL;
-}
-
-static inline int dma_get_sgtable(struct device *dev, struct sg_table *sgt,
-				  void *cpu_addr, dma_addr_t dma_addr,
-				  size_t size)
-{
-	return -EINVAL;
-}
+#include <asm-generic/dma-mapping-common.h>
 
 #endif  /* _ASM_DMA_MAPPING_H */
diff --git a/arch/frv/mb93090-mb00/pci-dma-nommu.c b/arch/frv/mb93090-mb00/pci-dma-nommu.c
index 8eeea0d..082be49 100644
--- a/arch/frv/mb93090-mb00/pci-dma-nommu.c
+++ b/arch/frv/mb93090-mb00/pci-dma-nommu.c
@@ -34,7 +34,8 @@ struct dma_alloc_record {
 static DEFINE_SPINLOCK(dma_alloc_lock);
 static LIST_HEAD(dma_alloc_list);
 
-void *dma_alloc_coherent(struct device *hwdev, size_t size, dma_addr_t *dma_handle, gfp_t gfp)
+static void *frv_dma_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, struct dma_attrs *attrs)
 {
 	struct dma_alloc_record *new;
 	struct list_head *this = &dma_alloc_list;
@@ -84,9 +85,8 @@ void *dma_alloc_coherent(struct device *hwdev, size_t size, dma_addr_t *dma_hand
 	return NULL;
 }
 
-EXPORT_SYMBOL(dma_alloc_coherent);
-
-void dma_free_coherent(struct device *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle)
+static void frv_dma_free(struct device *hwdev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
 	struct dma_alloc_record *rec;
 	unsigned long flags;
@@ -105,22 +105,9 @@ void dma_free_coherent(struct device *hwdev, size_t size, void *vaddr, dma_addr_
 	BUG();
 }
 
-EXPORT_SYMBOL(dma_free_coherent);
-
-dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
-			  enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	frv_cache_wback_inv((unsigned long) ptr, (unsigned long) ptr + size);
-
-	return virt_to_bus(ptr);
-}
-
-EXPORT_SYMBOL(dma_map_single);
-
-int dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	       enum dma_data_direction direction)
+static int frv_dma_map_sg(struct device *dev, struct scatterlist *sglist,
+		int nents, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -135,14 +122,49 @@ int dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	return nents;
 }
 
-EXPORT_SYMBOL(dma_map_sg);
-
-dma_addr_t dma_map_page(struct device *dev, struct page *page, unsigned long offset,
-			size_t size, enum dma_data_direction direction)
+static dma_addr_t frv_dma_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size,
+		enum dma_data_direction direction, struct dma_attrs *attrs)
 {
 	BUG_ON(direction == DMA_NONE);
 	flush_dcache_page(page);
 	return (dma_addr_t) page_to_phys(page) + offset;
 }
 
-EXPORT_SYMBOL(dma_map_page);
+static void frv_dma_sync_single_for_device(struct device *dev,
+		dma_addr_t dma_handle, size_t size,
+		enum dma_data_direction direction)
+{
+	flush_write_buffers();
+}
+
+static void frv_dma_sync_sg_for_device(struct device *dev,
+		struct scatterlist *sg, int nelems,
+		enum dma_data_direction direction)
+{
+	flush_write_buffers();
+}
+
+
+static int frv_dma_supported(struct device *dev, u64 mask)
+{
+        /*
+         * we fall back to GFP_DMA when the mask isn't all 1s,
+         * so we can't guarantee allocations that must be
+         * within a tighter range than GFP_DMA..
+         */
+        if (mask < 0x00ffffff)
+                return 0;
+	return 1;
+}
+
+struct dma_map_ops frv_dma_ops = {
+	.alloc			= frv_dma_alloc,
+	.free			= frv_dma_free,
+	.map_page		= frv_dma_map_page,
+	.map_sg			= frv_dma_map_sg,
+	.sync_single_for_device	= frv_dma_sync_single_for_device,
+	.sync_sg_for_device	= frv_dma_sync_sg_for_device,
+	.dma_supported		= frv_dma_supported,
+};
+EXPORT_SYMBOL(frv_dma_ops);
diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c
index 4d1f01d..316b7b6 100644
--- a/arch/frv/mb93090-mb00/pci-dma.c
+++ b/arch/frv/mb93090-mb00/pci-dma.c
@@ -18,7 +18,9 @@
 #include <linux/scatterlist.h>
 #include <asm/io.h>
 
-void *dma_alloc_coherent(struct device *hwdev, size_t size, dma_addr_t *dma_handle, gfp_t gfp)
+static void *frv_dma_alloc(struct device *hwdev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp,
+		struct dma_attrs *attrs)
 {
 	void *ret;
 
@@ -29,29 +31,15 @@ void *dma_alloc_coherent(struct device *hwdev, size_t size, dma_addr_t *dma_hand
 	return ret;
 }
 
-EXPORT_SYMBOL(dma_alloc_coherent);
-
-void dma_free_coherent(struct device *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle)
+static void frv_dma_free(struct device *hwdev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
 	consistent_free(vaddr);
 }
 
-EXPORT_SYMBOL(dma_free_coherent);
-
-dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
-			  enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	frv_cache_wback_inv((unsigned long) ptr, (unsigned long) ptr + size);
-
-	return virt_to_bus(ptr);
-}
-
-EXPORT_SYMBOL(dma_map_single);
-
-int dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	       enum dma_data_direction direction)
+static int frv_dma_map_sg(struct device *dev, struct scatterlist *sglist,
+		int nents, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
 {
 	unsigned long dampr2;
 	void *vaddr;
@@ -79,14 +67,48 @@ int dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	return nents;
 }
 
-EXPORT_SYMBOL(dma_map_sg);
-
-dma_addr_t dma_map_page(struct device *dev, struct page *page, unsigned long offset,
-			size_t size, enum dma_data_direction direction)
+static dma_addr_t frv_dma_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size,
+		enum dma_data_direction direction, struct dma_attrs *attrs)
 {
-	BUG_ON(direction == DMA_NONE);
 	flush_dcache_page(page);
 	return (dma_addr_t) page_to_phys(page) + offset;
 }
 
-EXPORT_SYMBOL(dma_map_page);
+static void frv_dma_sync_single_for_device(struct device *dev,
+		dma_addr_t dma_handle, size_t size,
+		enum dma_data_direction direction)
+{
+	flush_write_buffers();
+}
+
+static void frv_dma_sync_sg_for_device(struct device *dev,
+		struct scatterlist *sg, int nelems,
+		enum dma_data_direction direction)
+{
+	flush_write_buffers();
+}
+
+
+static int frv_dma_supported(struct device *dev, u64 mask)
+{
+        /*
+         * we fall back to GFP_DMA when the mask isn't all 1s,
+         * so we can't guarantee allocations that must be
+         * within a tighter range than GFP_DMA..
+         */
+        if (mask < 0x00ffffff)
+                return 0;
+	return 1;
+}
+
+struct dma_map_ops frv_dma_ops = {
+	.alloc			= frv_dma_alloc,
+	.free			= frv_dma_free,
+	.map_page		= frv_dma_map_page,
+	.map_sg			= frv_dma_map_sg,
+	.sync_single_for_device	= frv_dma_sync_single_for_device,
+	.sync_sg_for_device	= frv_dma_sync_sg_for_device,
+	.dma_supported		= frv_dma_supported,
+};
+EXPORT_SYMBOL(frv_dma_ops);
-- 
1.9.1

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Newsgroups: gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.sparc,gmane.linux.kernel.iommu
Subject: [PATCH 02/16] arc: convert to dma_map_ops
Date: Mon,  9 Nov 2015 19:17:07 +0100
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To: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
	Haavard Skinnemoen <hskinnemoen-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
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Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/arc/Kconfig                   |   1 +
 arch/arc/include/asm/dma-mapping.h | 187 +------------------------------------
 arch/arc/mm/dma.c                  | 151 ++++++++++++++++++++----------
 3 files changed, 109 insertions(+), 230 deletions(-)

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 2c2ac3f..fdf217c 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -38,6 +38,7 @@ config ARC
 	select OF_EARLY_FLATTREE
 	select PERF_USE_VMALLOC
 	select HAVE_DEBUG_STACKOVERFLOW
+	select HAVE_DMA_ATTRS
 
 config TRACE_IRQFLAGS_SUPPORT
 	def_bool y
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index 2d28ba9..2a617f9 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -11,192 +11,13 @@
 #ifndef ASM_ARC_DMA_MAPPING_H
 #define ASM_ARC_DMA_MAPPING_H
 
-#include <asm-generic/dma-coherent.h>
-#include <asm/cacheflush.h>
+extern struct dma_map_ops arc_dma_ops;
 
-void *dma_alloc_noncoherent(struct device *dev, size_t size,
-			    dma_addr_t *dma_handle, gfp_t gfp);
-
-void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr,
-			  dma_addr_t dma_handle);
-
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			 dma_addr_t *dma_handle, gfp_t gfp);
-
-void dma_free_coherent(struct device *dev, size_t size, void *kvaddr,
-		       dma_addr_t dma_handle);
-
-/* drivers/base/dma-mapping.c */
-extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
-			   void *cpu_addr, dma_addr_t dma_addr, size_t size);
-extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
-				  void *cpu_addr, dma_addr_t dma_addr,
-				  size_t size);
-
-#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s)
-#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s)
-
-/*
- * streaming DMA Mapping API...
- * CPU accesses page via normal paddr, thus needs to explicitly made
- * consistent before each use
- */
-
-static inline void __inline_dma_cache_sync(unsigned long paddr, size_t size,
-					   enum dma_data_direction dir)
-{
-	switch (dir) {
-	case DMA_FROM_DEVICE:
-		dma_cache_inv(paddr, size);
-		break;
-	case DMA_TO_DEVICE:
-		dma_cache_wback(paddr, size);
-		break;
-	case DMA_BIDIRECTIONAL:
-		dma_cache_wback_inv(paddr, size);
-		break;
-	default:
-		pr_err("Invalid DMA dir [%d] for OP @ %lx\n", dir, paddr);
-	}
-}
-
-void __arc_dma_cache_sync(unsigned long paddr, size_t size,
-			  enum dma_data_direction dir);
-
-#define _dma_cache_sync(addr, sz, dir)			\
-do {							\
-	if (__builtin_constant_p(dir))			\
-		__inline_dma_cache_sync(addr, sz, dir);	\
-	else						\
-		__arc_dma_cache_sync(addr, sz, dir);	\
-}							\
-while (0);
-
-static inline dma_addr_t
-dma_map_single(struct device *dev, void *cpu_addr, size_t size,
-	       enum dma_data_direction dir)
-{
-	_dma_cache_sync((unsigned long)cpu_addr, size, dir);
-	return (dma_addr_t)cpu_addr;
-}
-
-static inline void
-dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
-		 size_t size, enum dma_data_direction dir)
-{
-}
-
-static inline dma_addr_t
-dma_map_page(struct device *dev, struct page *page,
-	     unsigned long offset, size_t size,
-	     enum dma_data_direction dir)
-{
-	unsigned long paddr = page_to_phys(page) + offset;
-	return dma_map_single(dev, (void *)paddr, size, dir);
-}
-
-static inline void
-dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
-	       size_t size, enum dma_data_direction dir)
-{
-}
-
-static inline int
-dma_map_sg(struct device *dev, struct scatterlist *sg,
-	   int nents, enum dma_data_direction dir)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i)
-		s->dma_address = dma_map_page(dev, sg_page(s), s->offset,
-					       s->length, dir);
-
-	return nents;
-}
-
-static inline void
-dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-	     int nents, enum dma_data_direction dir)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i)
-		dma_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir);
-}
-
-static inline void
-dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
-			size_t size, enum dma_data_direction dir)
-{
-	_dma_cache_sync(dma_handle, size, DMA_FROM_DEVICE);
-}
-
-static inline void
-dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
-			   size_t size, enum dma_data_direction dir)
-{
-	_dma_cache_sync(dma_handle, size, DMA_TO_DEVICE);
-}
-
-static inline void
-dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
-			      unsigned long offset, size_t size,
-			      enum dma_data_direction direction)
-{
-	_dma_cache_sync(dma_handle + offset, size, DMA_FROM_DEVICE);
-}
-
-static inline void
-dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
-				 unsigned long offset, size_t size,
-				 enum dma_data_direction direction)
-{
-	_dma_cache_sync(dma_handle + offset, size, DMA_TO_DEVICE);
+	return &arc_dma_ops;
 }
 
-static inline void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nelems,
-		    enum dma_data_direction dir)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nelems, i)
-		_dma_cache_sync((unsigned int)sg_virt(sg), sg->length, dir);
-}
-
-static inline void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
-		       int nelems, enum dma_data_direction dir)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nelems, i)
-		_dma_cache_sync((unsigned int)sg_virt(sg), sg->length, dir);
-}
-
-static inline int dma_supported(struct device *dev, u64 dma_mask)
-{
-	/* Support 32 bit DMA mask exclusively */
-	return dma_mask == DMA_BIT_MASK(32);
-}
-
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return 0;
-}
-
-static inline int dma_set_mask(struct device *dev, u64 dma_mask)
-{
-	if (!dev->dma_mask || !dma_supported(dev, dma_mask))
-		return -EIO;
-
-	*dev->dma_mask = dma_mask;
-
-	return 0;
-}
+#include <asm-generic/dma-mapping-common.h>
 
 #endif
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 29a46bb..da289cb 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -17,18 +17,14 @@
  */
 
 #include <linux/dma-mapping.h>
-#include <linux/dma-debug.h>
-#include <linux/export.h>
 #include <asm/cache.h>
 #include <asm/cacheflush.h>
 
-/*
- * Helpers for Coherent DMA API.
- */
-void *dma_alloc_noncoherent(struct device *dev, size_t size,
-			    dma_addr_t *dma_handle, gfp_t gfp)
+
+static void *arc_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs)
 {
-	void *paddr;
+	void *paddr, *kvaddr;
 
 	/* This is linear addr (0x8000_0000 based) */
 	paddr = alloc_pages_exact(size, gfp);
@@ -38,22 +34,6 @@ void *dma_alloc_noncoherent(struct device *dev, size_t size,
 	/* This is bus address, platform dependent */
 	*dma_handle = (dma_addr_t)paddr;
 
-	return paddr;
-}
-EXPORT_SYMBOL(dma_alloc_noncoherent);
-
-void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr,
-			  dma_addr_t dma_handle)
-{
-	free_pages_exact((void *)dma_handle, size);
-}
-EXPORT_SYMBOL(dma_free_noncoherent);
-
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			 dma_addr_t *dma_handle, gfp_t gfp)
-{
-	void *paddr, *kvaddr;
-
 	/*
 	 * IOC relies on all data (even coherent DMA data) being in cache
 	 * Thus allocate normal cached memory
@@ -65,22 +45,15 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 	 *   -For coherent data, Read/Write to buffers terminate early in cache
 	 *   (vs. always going to memory - thus are faster)
 	 */
-	if (is_isa_arcv2() && ioc_exists)
-		return dma_alloc_noncoherent(dev, size, dma_handle, gfp);
-
-	/* This is linear addr (0x8000_0000 based) */
-	paddr = alloc_pages_exact(size, gfp);
-	if (!paddr)
-		return NULL;
+	if ((is_isa_arcv2() && ioc_exists) ||
+	    dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)
+		return paddr;
 
 	/* This is kernel Virtual address (0x7000_0000 based) */
 	kvaddr = ioremap_nocache((unsigned long)paddr, size);
 	if (kvaddr == NULL)
 		return NULL;
 
-	/* This is bus address, platform dependent */
-	*dma_handle = (dma_addr_t)paddr;
-
 	/*
 	 * Evict any existing L1 and/or L2 lines for the backing page
 	 * in case it was used earlier as a normal "cached" page.
@@ -95,26 +68,110 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 
 	return kvaddr;
 }
-EXPORT_SYMBOL(dma_alloc_coherent);
 
-void dma_free_coherent(struct device *dev, size_t size, void *kvaddr,
-		       dma_addr_t dma_handle)
+static void arc_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
-	if (is_isa_arcv2() && ioc_exists)
-		return dma_free_noncoherent(dev, size, kvaddr, dma_handle);
-
-	iounmap((void __force __iomem *)kvaddr);
+	if (!(is_isa_arcv2() && ioc_exists) ||
+	    dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+		iounmap((void __force __iomem *)kvaddr);
 
 	free_pages_exact((void *)dma_handle, size);
 }
-EXPORT_SYMBOL(dma_free_coherent);
 
 /*
- * Helper for streaming DMA...
+ * streaming DMA Mapping API...
+ * CPU accesses page via normal paddr, thus needs to explicitly made
+ * consistent before each use
  */
-void __arc_dma_cache_sync(unsigned long paddr, size_t size,
-			  enum dma_data_direction dir)
+static void _dma_cache_sync(unsigned long paddr, size_t size,
+		enum dma_data_direction dir)
+{
+	switch (dir) {
+	case DMA_FROM_DEVICE:
+		dma_cache_inv(paddr, size);
+		break;
+	case DMA_TO_DEVICE:
+		dma_cache_wback(paddr, size);
+		break;
+	case DMA_BIDIRECTIONAL:
+		dma_cache_wback_inv(paddr, size);
+		break;
+	default:
+		pr_err("Invalid DMA dir [%d] for OP @ %lx\n", dir, paddr);
+	}
+}
+
+static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size, enum dma_data_direction dir,
+		struct dma_attrs *attrs)
+{
+	unsigned long paddr = page_to_phys(page) + offset;
+	return dma_map_single(dev, (void *)paddr, size, dir);
+}
+
+static int arc_dma_map_sg(struct device *dev, struct scatterlist *sg,
+	   int nents, enum dma_data_direction dir, struct dma_attrs *attrs)
+{
+	struct scatterlist *s;
+	int i;
+
+	for_each_sg(sg, s, nents, i)
+		s->dma_address = dma_map_page(dev, sg_page(s), s->offset,
+					       s->length, dir);
+
+	return nents;
+}
+
+static void arc_dma_sync_single_for_cpu(struct device *dev,
+		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
+{
+	_dma_cache_sync(dma_handle, size, DMA_FROM_DEVICE);
+}
+
+static void arc_dma_sync_single_for_device(struct device *dev,
+		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
 {
-	__inline_dma_cache_sync(paddr, size, dir);
+	_dma_cache_sync(dma_handle, size, DMA_TO_DEVICE);
 }
-EXPORT_SYMBOL(__arc_dma_cache_sync);
+
+static void arm_dma_sync_sg_for_cpu(struct device *dev,
+		struct scatterlist *sglist, int nelems,
+		enum dma_data_direction dir)
+{
+	int i;
+	struct scatterlist *sg;
+
+	for_each_sg(sglist, sg, nelems, i)
+		_dma_cache_sync((unsigned int)sg_virt(sg), sg->length, dir);
+}
+
+static void arc_dma_sync_sg_for_device(struct device *dev,
+		struct scatterlist *sglist, int nelems,
+		enum dma_data_direction dir)
+{
+	int i;
+	struct scatterlist *sg;
+
+	for_each_sg(sglist, sg, nelems, i)
+		_dma_cache_sync((unsigned int)sg_virt(sg), sg->length, dir);
+}
+
+static int arc_dma_supported(struct device *dev, u64 dma_mask)
+{
+	/* Support 32 bit DMA mask exclusively */
+	return dma_mask == DMA_BIT_MASK(32);
+}
+
+struct dma_map_ops arc_dma_ops = {
+	.alloc			= arc_dma_alloc,
+	.free			= arc_dma_free,
+	.map_page		= arc_dma_map_page,
+	.map_sg			= arc_dma_map_sg,
+	.sync_single_for_device	= arc_dma_sync_single_for_device,
+	.sync_single_for_cpu	= arc_dma_sync_single_for_cpu,
+	.sync_sg_for_cpu	= arc_dma_sync_sg_for_cpu,
+	.sync_sg_for_dev	= arc_dma_sync_sg_for_device,
+	.dma_supported		= arc_dma_supported,
+};
+EXPORT_SYMBOL(arc_dma_ops);
-- 
1.9.1


From - Thu Nov 08 21:38:02 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.ports.sparc,gmane.linux.kernel.iommu
Subject: [PATCH 12/16] metag: convert to dma_map_ops
Date: Mon,  9 Nov 2015 19:17:17 +0100
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To: Andrew Morton <akpm@linux-foundation.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/7596>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/metag/Kconfig                   |   1 +
 arch/metag/include/asm/dma-mapping.h | 179 +----------------------------------
 arch/metag/kernel/dma.c              | 146 +++++++++++++++++++++-------
 3 files changed, 117 insertions(+), 209 deletions(-)

diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig
index 0b389a8..36af3c0 100644
--- a/arch/metag/Kconfig
+++ b/arch/metag/Kconfig
@@ -29,6 +29,7 @@ config METAG
 	select OF
 	select OF_EARLY_FLATTREE
 	select SPARSE_IRQ
+	select HAVE_DMA_ATTRS
 
 config STACKTRACE_SUPPORT
 	def_bool y
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index eb5cdec..768f2e3 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -1,178 +1,14 @@
 #ifndef _ASM_METAG_DMA_MAPPING_H
 #define _ASM_METAG_DMA_MAPPING_H
 
-#include <linux/mm.h>
+extern struct dma_map_ops metag_dma_ops;
 
-#include <asm/cache.h>
-#include <asm/io.h>
-#include <linux/scatterlist.h>
-#include <asm/bug.h>
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			 dma_addr_t *dma_handle, gfp_t flag);
-
-void dma_free_coherent(struct device *dev, size_t size,
-		       void *vaddr, dma_addr_t dma_handle);
-
-void dma_sync_for_device(void *vaddr, size_t size, int dma_direction);
-void dma_sync_for_cpu(void *vaddr, size_t size, int dma_direction);
-
-int dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
-		      void *cpu_addr, dma_addr_t dma_addr, size_t size);
-
-int dma_mmap_writecombine(struct device *dev, struct vm_area_struct *vma,
-			  void *cpu_addr, dma_addr_t dma_addr, size_t size);
-
-static inline dma_addr_t
-dma_map_single(struct device *dev, void *ptr, size_t size,
-	       enum dma_data_direction direction)
-{
-	BUG_ON(!valid_dma_direction(direction));
-	WARN_ON(size == 0);
-	dma_sync_for_device(ptr, size, direction);
-	return virt_to_phys(ptr);
-}
-
-static inline void
-dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
-		 enum dma_data_direction direction)
-{
-	BUG_ON(!valid_dma_direction(direction));
-	dma_sync_for_cpu(phys_to_virt(dma_addr), size, direction);
-}
-
-static inline int
-dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	   enum dma_data_direction direction)
-{
-	struct scatterlist *sg;
-	int i;
-
-	BUG_ON(!valid_dma_direction(direction));
-	WARN_ON(nents == 0 || sglist[0].length == 0);
-
-	for_each_sg(sglist, sg, nents, i) {
-		BUG_ON(!sg_page(sg));
-
-		sg->dma_address = sg_phys(sg);
-		dma_sync_for_device(sg_virt(sg), sg->length, direction);
-	}
-
-	return nents;
-}
-
-static inline dma_addr_t
-dma_map_page(struct device *dev, struct page *page, unsigned long offset,
-	     size_t size, enum dma_data_direction direction)
-{
-	BUG_ON(!valid_dma_direction(direction));
-	dma_sync_for_device((void *)(page_to_phys(page) + offset), size,
-			    direction);
-	return page_to_phys(page) + offset;
-}
-
-static inline void
-dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
-	       enum dma_data_direction direction)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
-	BUG_ON(!valid_dma_direction(direction));
-	dma_sync_for_cpu(phys_to_virt(dma_address), size, direction);
+	return &metag_dma_ops;
 }
 
-
-static inline void
-dma_unmap_sg(struct device *dev, struct scatterlist *sglist, int nhwentries,
-	     enum dma_data_direction direction)
-{
-	struct scatterlist *sg;
-	int i;
-
-	BUG_ON(!valid_dma_direction(direction));
-	WARN_ON(nhwentries == 0 || sglist[0].length == 0);
-
-	for_each_sg(sglist, sg, nhwentries, i) {
-		BUG_ON(!sg_page(sg));
-
-		sg->dma_address = sg_phys(sg);
-		dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
-	}
-}
-
-static inline void
-dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
-			enum dma_data_direction direction)
-{
-	dma_sync_for_cpu(phys_to_virt(dma_handle), size, direction);
-}
-
-static inline void
-dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
-			   size_t size, enum dma_data_direction direction)
-{
-	dma_sync_for_device(phys_to_virt(dma_handle), size, direction);
-}
-
-static inline void
-dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
-			      unsigned long offset, size_t size,
-			      enum dma_data_direction direction)
-{
-	dma_sync_for_cpu(phys_to_virt(dma_handle)+offset, size,
-			 direction);
-}
-
-static inline void
-dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
-				 unsigned long offset, size_t size,
-				 enum dma_data_direction direction)
-{
-	dma_sync_for_device(phys_to_virt(dma_handle)+offset, size,
-			    direction);
-}
-
-static inline void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nelems,
-		    enum dma_data_direction direction)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nelems, i)
-		dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
-}
-
-static inline void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
-		       int nelems, enum dma_data_direction direction)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nelems, i)
-		dma_sync_for_device(sg_virt(sg), sg->length, direction);
-}
-
-static inline int
-dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return 0;
-}
-
-#define dma_supported(dev, mask)        (1)
-
-static inline int
-dma_set_mask(struct device *dev, u64 mask)
-{
-	if (!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-
-	*dev->dma_mask = mask;
-
-	return 0;
-}
+#include <asm-generic/dma-mapping-common.h>
 
 /*
  * dma_alloc_noncoherent() returns non-cacheable memory, so there's no need to
@@ -184,11 +20,4 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 {
 }
 
-/* drivers/base/dma-mapping.c */
-extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
-				  void *cpu_addr, dma_addr_t dma_addr,
-				  size_t size);
-
-#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s)
-
 #endif
diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index c700d62..e12368d 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -171,8 +171,8 @@ out:
  * Allocate DMA-coherent memory space and return both the kernel remapped
  * virtual and bus address for that space.
  */
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			 dma_addr_t *handle, gfp_t gfp)
+static void *metag_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *handle, gfp_t gfp, struct dma_attrs *attrs)
 {
 	struct page *page;
 	struct metag_vm_region *c;
@@ -263,13 +263,12 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 no_page:
 	return NULL;
 }
-EXPORT_SYMBOL(dma_alloc_coherent);
 
 /*
  * free a page as defined by the above mapping.
  */
-void dma_free_coherent(struct device *dev, size_t size,
-		       void *vaddr, dma_addr_t dma_handle)
+static void metag_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, struct dma_attrs *attrs)
 {
 	struct metag_vm_region *c;
 	unsigned long flags, addr;
@@ -329,16 +328,19 @@ no_area:
 	       __func__, vaddr);
 	dump_stack();
 }
-EXPORT_SYMBOL(dma_free_coherent);
 
-
-static int dma_mmap(struct device *dev, struct vm_area_struct *vma,
-		    void *cpu_addr, dma_addr_t dma_addr, size_t size)
+static int metag_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+		void *cpu_addr, dma_addr_t dma_addr, size_t size,
+		struct dma_attrs *attrs)
 {
-	int ret = -ENXIO;
-
 	unsigned long flags, user_size, kern_size;
 	struct metag_vm_region *c;
+	int ret = -ENXIO;
+
+	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+		vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+	else
+		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
 	user_size = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
 
@@ -364,25 +366,6 @@ static int dma_mmap(struct device *dev, struct vm_area_struct *vma,
 	return ret;
 }
 
-int dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
-		      void *cpu_addr, dma_addr_t dma_addr, size_t size)
-{
-	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-	return dma_mmap(dev, vma, cpu_addr, dma_addr, size);
-}
-EXPORT_SYMBOL(dma_mmap_coherent);
-
-int dma_mmap_writecombine(struct device *dev, struct vm_area_struct *vma,
-			  void *cpu_addr, dma_addr_t dma_addr, size_t size)
-{
-	vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
-	return dma_mmap(dev, vma, cpu_addr, dma_addr, size);
-}
-EXPORT_SYMBOL(dma_mmap_writecombine);
-
-
-
-
 /*
  * Initialise the consistent memory allocation.
  */
@@ -423,7 +406,7 @@ early_initcall(dma_alloc_init);
 /*
  * make an area consistent to devices.
  */
-void dma_sync_for_device(void *vaddr, size_t size, int dma_direction)
+static void dma_sync_for_device(void *vaddr, size_t size, int dma_direction)
 {
 	/*
 	 * Ensure any writes get through the write combiner. This is necessary
@@ -465,12 +448,11 @@ void dma_sync_for_device(void *vaddr, size_t size, int dma_direction)
 
 	wmb();
 }
-EXPORT_SYMBOL(dma_sync_for_device);
 
 /*
  * make an area consistent to the core.
  */
-void dma_sync_for_cpu(void *vaddr, size_t size, int dma_direction)
+static void dma_sync_for_cpu(void *vaddr, size_t size, int dma_direction)
 {
 	/*
 	 * Hardware L2 cache prefetch doesn't occur across 4K physical
@@ -497,4 +479,100 @@ void dma_sync_for_cpu(void *vaddr, size_t size, int dma_direction)
 
 	rmb();
 }
-EXPORT_SYMBOL(dma_sync_for_cpu);
+
+static dma_addr_t metag_dma_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size,
+		enum dma_data_direction direction, struct dma_attrs *attrs)
+{
+	dma_sync_for_device((void *)(page_to_phys(page) + offset), size,
+			    direction);
+	return page_to_phys(page) + offset;
+}
+
+static void metag_dma_unmap_page(struct device *dev, dma_addr_t dma_address,
+		size_t size, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
+{
+	dma_sync_for_cpu(phys_to_virt(dma_address), size, direction);
+}
+
+static int metag_dma_map_sg(struct device *dev, struct scatterlist *sglist,
+		int nents, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
+{
+	struct scatterlist *sg;
+	int i;
+
+	for_each_sg(sglist, sg, nents, i) {
+		BUG_ON(!sg_page(sg));
+
+		sg->dma_address = sg_phys(sg);
+		dma_sync_for_device(sg_virt(sg), sg->length, direction);
+	}
+
+	return nents;
+}
+
+
+static void metag_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
+		int nhwentries, enum dma_data_direction direction,
+		struct dma_attrs *attrs)
+{
+	struct scatterlist *sg;
+	int i;
+
+	for_each_sg(sglist, sg, nhwentries, i) {
+		BUG_ON(!sg_page(sg));
+
+		sg->dma_address = sg_phys(sg);
+		dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
+	}
+}
+
+static void metag_dma_sync_single_for_cpu(struct device *dev,
+		dma_addr_t dma_handle, size_t size,
+		enum dma_data_direction direction)
+{
+	dma_sync_for_cpu(phys_to_virt(dma_handle), size, direction);
+}
+
+static void metag_dma_sync_single_for_device(struct device *dev,
+		dma_addr_t dma_handle, size_t size,
+		enum dma_data_direction direction)
+{
+	dma_sync_for_device(phys_to_virt(dma_handle), size, direction);
+}
+
+static void metag_dma_sync_sg_for_cpu(struct device *dev,
+		struct scatterlist *sglist, int nelems,
+		enum dma_data_direction direction)
+{
+	int i;
+	struct scatterlist *sg;
+
+	for_each_sg(sglist, sg, nelems, i)
+		dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
+}
+
+static void metag_dma_sync_sg_for_device(struct device *dev,
+		struct scatterlist *sglist, int nelems,
+		enum dma_data_direction direction)
+{
+	int i;
+	struct scatterlist *sg;
+
+	for_each_sg(sglist, sg, nelems, i)
+		dma_sync_for_device(sg_virt(sg), sg->length, direction);
+}
+
+struct dma_map_ops metag_dma_ops = {
+	.alloc			= metag_dma_alloc,
+	.free			= metag_dma_free,
+	.map_page		= metag_dma_map_page,
+	.map_sg			= metag_dma_map_sg,
+	.sync_single_for_device	= metag_dma_sync_single_for_device,
+	.sync_single_for_cpu	= metag_dma_sync_single_for_cpu,
+	.sync_sg_for_cpu	= metag_dma_sync_sg_for_cpu,
+	.mmap			= metag_dma_mmap,
+};
+EXPORT_SYMBOL(metag_dma_ops);
-- 
1.9.1


From - Thu Nov 08 21:38:02 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.ports.sparc,gmane.linux.kernel.iommu
Subject: [PATCH 13/16] sparc: use generic dma_set_mask
Date: Mon,  9 Nov 2015 19:17:18 +0100
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Sparc already uses the same code as the generic code for the PCI
implementation but just fails the call sbus.  This moves to the
generic implemenation which eventually return -EIO due to the NULL
dma_mask pointer in the device.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sparc/include/asm/dma-mapping.h | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index a21da59..2777092 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -37,21 +37,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 	return dma_ops;
 }
 
-#define HAVE_ARCH_DMA_SET_MASK 1
-
-static inline int dma_set_mask(struct device *dev, u64 mask)
-{
-#ifdef CONFIG_PCI
-	if (dev->bus == &pci_bus_type) {
-		if (!dev->dma_mask || !dma_supported(dev, mask))
-			return -EINVAL;
-		*dev->dma_mask = mask;
-		return 0;
-	}
-#endif
-	return -EINVAL;
-}

From - Thu Nov 08 21:38:02 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.kernel.iommu
Subject: [PATCH 14/16] tile: uninline dma_set_mask
Date: Mon,  9 Nov 2015 19:17:19 +0100
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Approved: news@gmane.org
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We'll soon merge <asm-generic/dma-mapping-common.h> into <linux/dma-mapping.h>
and the reference to dma_capable in the tile dma_set_mask would create a
circular dependency.  Fix this by moving the implementation out of line.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/tile/include/asm/dma-mapping.h | 29 +----------------------------
 arch/tile/kernel/pci-dma.c          | 29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 28 deletions(-)

diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 96ac6cc..c342736 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -76,34 +76,7 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 
 #include <asm-generic/dma-mapping-common.h>
 
-static inline int
-dma_set_mask(struct device *dev, u64 mask)
-{
-	struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-	/*
-	 * For PCI devices with 64-bit DMA addressing capability, promote
-	 * the dma_ops to hybrid, with the consistent memory DMA space limited
-	 * to 32-bit. For 32-bit capable devices, limit the streaming DMA
-	 * address range to max_direct_dma_addr.
-	 */
-	if (dma_ops == gx_pci_dma_map_ops ||
-	    dma_ops == gx_hybrid_pci_dma_map_ops ||
-	    dma_ops == gx_legacy_pci_dma_map_ops) {
-		if (mask == DMA_BIT_MASK(64) &&
-		    dma_ops == gx_legacy_pci_dma_map_ops)
-			set_dma_ops(dev, gx_hybrid_pci_dma_map_ops);
-		else if (mask > dev->archdata.max_direct_dma_addr)
-			mask = dev->archdata.max_direct_dma_addr;
-	}
-
-	if (!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-
-	*dev->dma_mask = mask;
-
-	return 0;
-}
+int dma_set_mask(struct device *dev, u64 mask);
 
 /*
  * dma_alloc_noncoherent() is #defined to return coherent memory,
diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c
index 09b5870..b6bc054 100644
--- a/arch/tile/kernel/pci-dma.c
+++ b/arch/tile/kernel/pci-dma.c
@@ -583,6 +583,35 @@ struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
 EXPORT_SYMBOL(gx_legacy_pci_dma_map_ops);
 EXPORT_SYMBOL(gx_hybrid_pci_dma_map_ops);
 
+int dma_set_mask(struct device *dev, u64 mask)
+{
+	struct dma_map_ops *dma_ops = get_dma_ops(dev);
+
+	/*
+	 * For PCI devices with 64-bit DMA addressing capability, promote
+	 * the dma_ops to hybrid, with the consistent memory DMA space limited
+	 * to 32-bit. For 32-bit capable devices, limit the streaming DMA
+	 * address range to max_direct_dma_addr.
+	 */
+	if (dma_ops == gx_pci_dma_map_ops ||
+	    dma_ops == gx_hybrid_pci_dma_map_ops ||
+	    dma_ops == gx_legacy_pci_dma_map_ops) {
+		if (mask == DMA_BIT_MASK(64) &&
+		    dma_ops == gx_legacy_pci_dma_map_ops)
+			set_dma_ops(dev, gx_hybrid_pci_dma_map_ops);
+		else if (mask > dev->archdata.max_direct_dma_addr)
+			mask = dev->archdata.max_direct_dma_addr;
+	}
+
+	if (!dev->dma_mask || !dma_supported(dev, mask))
+		return -EIO;
+
+	*dev->dma_mask = mask;
+
+	return 0;
+}
+EXPORT_SYMBOL(dma_set_mask);
+
 #ifdef CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK
 int dma_set_coherent_mask(struct device *dev, u64 mask)
 {
-- 
1.9.1

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From - Thu Nov 08 21:38:02 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.kernel.iommu
Subject: [PATCH 16/16] dma-mapping: remove <asm-generic/dma-coherent.h>
Date: Mon,  9 Nov 2015 19:17:21 +0100
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Approved: news@gmane.org
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This wasn't an asm-generic header to start with, and can be merged into
dma-mapping.h trivially.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/xtensa/include/asm/dma-mapping.h |  2 --
 drivers/base/dma-mapping.c            |  3 +--
 include/asm-generic/dma-coherent.h    | 32 --------------------------------
 include/linux/dma-mapping.h           | 34 ++++++++++++++++++++++++++++------
 4 files changed, 29 insertions(+), 42 deletions(-)
 delete mode 100644 include/asm-generic/dma-coherent.h

diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 32350e9..4e6ff4d 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -13,8 +13,6 @@
 #include <asm/cache.h>
 #include <asm/io.h>
 
-#include <asm-generic/dma-coherent.h>
-
 #include <linux/mm.h>
 #include <linux/scatterlist.h>
 
diff --git a/drivers/base/dma-mapping.c b/drivers/base/dma-mapping.c
index 381e39d..d799662 100644
--- a/drivers/base/dma-mapping.c
+++ b/drivers/base/dma-mapping.c
@@ -12,7 +12,6 @@
 #include <linux/gfp.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
-#include <asm-generic/dma-coherent.h>
 
 /*
  * Managed DMA API
@@ -167,7 +166,7 @@ void dmam_free_noncoherent(struct device *dev, size_t size, void *vaddr,
 }
 EXPORT_SYMBOL(dmam_free_noncoherent);
 
-#ifdef ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
+#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
 
 static void dmam_coherent_decl_release(struct device *dev, void *res)
 {
diff --git a/include/asm-generic/dma-coherent.h b/include/asm-generic/dma-coherent.h
deleted file mode 100644
index 0297e58..0000000
--- a/include/asm-generic/dma-coherent.h
+++ /dev/null
@@ -1,32 +0,0 @@
-#ifndef DMA_COHERENT_H
-#define DMA_COHERENT_H
-
-#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
-/*
- * These three functions are only for dma allocator.
- * Don't use them in device drivers.
- */
-int dma_alloc_from_coherent(struct device *dev, ssize_t size,
-				       dma_addr_t *dma_handle, void **ret);
-int dma_release_from_coherent(struct device *dev, int order, void *vaddr);
-
-int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
-			    void *cpu_addr, size_t size, int *ret);
-/*
- * Standard interface
- */
-#define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
-int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
-				dma_addr_t device_addr, size_t size, int flags);
-
-void dma_release_declared_memory(struct device *dev);
-
-void *dma_mark_declared_memory_occupied(struct device *dev,
-					dma_addr_t device_addr, size_t size);
-#else
-#define dma_alloc_from_coherent(dev, size, handle, ret) (0)
-#define dma_release_from_coherent(dev, order, vaddr) (0)
-#define dma_mmap_from_coherent(dev, vma, vaddr, order, ret) (0)
-#endif
-
-#endif
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index cc0517b..d6b575b 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -11,7 +11,6 @@
 #include <linux/scatterlist.h>
 #include <linux/kmemcheck.h>
 #include <linux/bug.h>
-#include <asm-generic/dma-coherent.h>
 
 /*
  * A dma_addr_t can hold any valid DMA or bus address for the platform.
@@ -87,6 +86,23 @@ static inline int is_device_dma_capable(struct device *dev)
 	return dev->dma_mask != NULL && *dev->dma_mask != DMA_MASK_NONE;
 }
 
+#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
+/*
+ * These three functions are only for dma allocator.
+ * Don't use them in device drivers.
+ */
+int dma_alloc_from_coherent(struct device *dev, ssize_t size,
+				       dma_addr_t *dma_handle, void **ret);
+int dma_release_from_coherent(struct device *dev, int order, void *vaddr);
+
+int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
+			    void *cpu_addr, size_t size, int *ret);
+#else
+#define dma_alloc_from_coherent(dev, size, handle, ret) (0)
+#define dma_release_from_coherent(dev, order, vaddr) (0)
+#define dma_mmap_from_coherent(dev, vma, vaddr, order, ret) (0)
+#endif /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
+
 #ifdef CONFIG_HAS_DMA
 #include <asm/dma-mapping.h>
 #else
@@ -568,7 +584,13 @@ static inline int dma_get_cache_alignment(void)
 #define DMA_MEMORY_INCLUDES_CHILDREN	0x04
 #define DMA_MEMORY_EXCLUSIVE		0x08
 
-#ifndef ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
+#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
+int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
+				dma_addr_t device_addr, size_t size, int flags);
+void dma_release_declared_memory(struct device *dev);
+void *dma_mark_declared_memory_occupied(struct device *dev,
+					dma_addr_t device_addr, size_t size);
+#else
 static inline int
 dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
 			    dma_addr_t device_addr, size_t size, int flags)
@@ -587,7 +609,7 @@ dma_mark_declared_memory_occupied(struct device *dev,
 {
 	return ERR_PTR(-EBUSY);
 }
-#endif
+#endif /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
 
 /*
  * Managed DMA API
@@ -600,13 +622,13 @@ extern void *dmam_alloc_noncoherent(struct device *dev, size_t size,
 				    dma_addr_t *dma_handle, gfp_t gfp);
 extern void dmam_free_noncoherent(struct device *dev, size_t size, void *vaddr,
 				  dma_addr_t dma_handle);
-#ifdef ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
+#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
 extern int dmam_declare_coherent_memory(struct device *dev,
 					phys_addr_t phys_addr,
 					dma_addr_t device_addr, size_t size,
 					int flags);
 extern void dmam_release_declared_memory(struct device *dev);
-#else /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */
+#else /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
 static inline int dmam_declare_coherent_memory(struct device *dev,
 				phys_addr_t phys_addr, dma_addr_t device_addr,
 				size_t size, gfp_t gfp)
@@ -617,7 +639,7 @@ static inline int dmam_declare_coherent_memory(struct device *dev,
 static inline void dmam_release_declared_memory(struct device *dev)
 {
 }
-#endif /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */
+#endif /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
 
 static inline void *dma_alloc_writecombine(struct device *dev, size_t size,
 					   dma_addr_t *dma_addr, gfp_t gfp)
-- 
1.9.1

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Newsgroups: gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.sparc,gmane.linux.kernel.iommu
Subject: [PATCH 15/16] dma-mapping: always provide the dma_map_ops based implementation
Date: Mon,  9 Nov 2015 19:17:20 +0100
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Move the generic implementation to <linux/dma-mapping.h> now that all
architectures support it and remove the HAVE_DMA_ATTR Kconfig symbol
now that everyone supports them.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 Documentation/DMA-API-HOWTO.txt                    |  10 -
 .../features/io/dma_map_attrs/arch-support.txt     |  40 ---
 arch/Kconfig                                       |   3 -
 arch/alpha/Kconfig                                 |   1 -
 arch/alpha/include/asm/dma-mapping.h               |   2 -
 arch/arc/Kconfig                                   |   1 -
 arch/arc/include/asm/dma-mapping.h                 |   2 -
 arch/arm/Kconfig                                   |   1 -
 arch/arm/include/asm/dma-mapping.h                 |   7 -
 arch/arm64/Kconfig                                 |   1 -
 arch/arm64/include/asm/dma-mapping.h               |   2 -
 arch/avr32/Kconfig                                 |   1 -
 arch/avr32/include/asm/dma-mapping.h               |   2 -
 arch/blackfin/Kconfig                              |   1 -
 arch/blackfin/include/asm/dma-mapping.h            |   2 -
 arch/c6x/Kconfig                                   |   1 -
 arch/c6x/include/asm/dma-mapping.h                 |   2 -
 arch/cris/Kconfig                                  |   1 -
 arch/cris/include/asm/dma-mapping.h                |   2 -
 arch/frv/Kconfig                                   |   1 -
 arch/frv/include/asm/dma-mapping.h                 |   2 -
 arch/h8300/Kconfig                                 |   1 -
 arch/h8300/include/asm/dma-mapping.h               |   2 -
 arch/hexagon/Kconfig                               |   1 -
 arch/hexagon/include/asm/dma-mapping.h             |   2 -
 arch/ia64/Kconfig                                  |   1 -
 arch/ia64/include/asm/dma-mapping.h                |   2 -
 arch/m68k/Kconfig                                  |   1 -
 arch/m68k/include/asm/dma-mapping.h                |   2 -
 arch/metag/Kconfig                                 |   1 -
 arch/metag/include/asm/dma-mapping.h               |   2 -
 arch/microblaze/Kconfig                            |   1 -
 arch/microblaze/include/asm/dma-mapping.h          |   2 -
 arch/mips/Kconfig                                  |   1 -
 arch/mips/include/asm/dma-mapping.h                |   2 -
 arch/mn10300/Kconfig                               |   1 -
 arch/mn10300/include/asm/dma-mapping.h             |   2 -
 arch/nios2/Kconfig                                 |   1 -
 arch/openrisc/Kconfig                              |   3 -
 arch/openrisc/include/asm/dma-mapping.h            |   2 -
 arch/parisc/Kconfig                                |   1 -
 arch/parisc/include/asm/dma-mapping.h              |   2 -
 arch/powerpc/Kconfig                               |   1 -
 arch/powerpc/include/asm/dma-mapping.h             |   2 -
 arch/s390/Kconfig                                  |   1 -
 arch/s390/include/asm/dma-mapping.h                |   2 -
 arch/sh/Kconfig                                    |   1 -
 arch/sh/include/asm/dma-mapping.h                  |   2 -
 arch/sparc/Kconfig                                 |   1 -
 arch/sparc/include/asm/dma-mapping.h               |   2 -
 arch/tile/Kconfig                                  |   1 -
 arch/tile/include/asm/dma-mapping.h                |   3 -
 arch/unicore32/Kconfig                             |   1 -
 arch/unicore32/include/asm/dma-mapping.h           |   2 -
 arch/x86/Kconfig                                   |   1 -
 arch/x86/include/asm/dma-mapping.h                 |   2 -
 arch/xtensa/Kconfig                                |   1 -
 arch/xtensa/include/asm/dma-mapping.h              |   2 -
 drivers/gpu/drm/Kconfig                            |   4 +-
 drivers/gpu/drm/imx/Kconfig                        |   2 +-
 drivers/gpu/drm/rcar-du/Kconfig                    |   2 +-
 drivers/gpu/drm/shmobile/Kconfig                   |   2 +-
 drivers/gpu/drm/sti/Kconfig                        |   2 +-
 drivers/gpu/drm/tilcdc/Kconfig                     |   2 +-
 drivers/media/platform/Kconfig                     |   1 -
 include/asm-generic/dma-mapping-broken.h           |  95 ------
 include/asm-generic/dma-mapping-common.h           | 358 -------------------
 include/linux/dma-attrs.h                          |  10 -
 include/linux/dma-mapping.h                        | 379 ++++++++++++++++++++-
 69 files changed, 368 insertions(+), 632 deletions(-)
 delete mode 100644 Documentation/features/io/dma_map_attrs/arch-support.txt
 delete mode 100644 include/asm-generic/dma-mapping-broken.h
 delete mode 100644 include/asm-generic/dma-mapping-common.h

diff --git a/Documentation/DMA-API-HOWTO.txt b/Documentation/DMA-API-HOWTO.txt
index d69b3fc..781024e 100644
--- a/Documentation/DMA-API-HOWTO.txt
+++ b/Documentation/DMA-API-HOWTO.txt
@@ -951,16 +951,6 @@ to "Closing".
    alignment constraints (e.g. the alignment constraints about 64-bit
    objects).
 
-3) Supporting multiple types of IOMMUs
-
-   If your architecture needs to support multiple types of IOMMUs, you
-   can use include/linux/asm-generic/dma-mapping-common.h. It's a
-   library to support the DMA API with multiple types of IOMMUs. Lots
-   of architectures (x86, powerpc, sh, alpha, ia64, microblaze and
-   sparc) use it. Choose one to see how it can be used. If you need to
-   support multiple types of IOMMUs in a single system, the example of
-   x86 or powerpc helps.
-
 			   Closing
 
 This document, and the API itself, would not be in its current
diff --git a/Documentation/features/io/dma_map_attrs/arch-support.txt b/Documentation/features/io/dma_map_attrs/arch-support.txt
deleted file mode 100644
index 51d0f1c..0000000
--- a/Documentation/features/io/dma_map_attrs/arch-support.txt
+++ /dev/null
@@ -1,40 +0,0 @@
-#
-# Feature name:          dma_map_attrs
-#         Kconfig:       HAVE_DMA_ATTRS
-#         description:   arch provides dma_*map*_attrs() APIs
-#
-    -----------------------
-    |         arch |status|
-    -----------------------
-    |       alpha: |  ok  |
-    |         arc: | TODO |
-    |         arm: |  ok  |
-    |       arm64: |  ok  |
-    |       avr32: | TODO |
-    |    blackfin: | TODO |
-    |         c6x: | TODO |
-    |        cris: | TODO |
-    |         frv: | TODO |
-    |       h8300: |  ok  |
-    |     hexagon: |  ok  |
-    |        ia64: |  ok  |
-    |        m32r: | TODO |
-    |        m68k: | TODO |
-    |       metag: | TODO |
-    |  microblaze: |  ok  |
-    |        mips: |  ok  |
-    |     mn10300: | TODO |
-    |       nios2: | TODO |
-    |    openrisc: |  ok  |
-    |      parisc: | TODO |
-    |     powerpc: |  ok  |
-    |        s390: |  ok  |
-    |       score: | TODO |
-    |          sh: |  ok  |
-    |       sparc: |  ok  |
-    |        tile: |  ok  |
-    |          um: | TODO |
-    |   unicore32: |  ok  |
-    |         x86: |  ok  |
-    |      xtensa: | TODO |
-    -----------------------
diff --git a/arch/Kconfig b/arch/Kconfig
index e47995f..58541e7 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -205,9 +205,6 @@ config HAVE_NMI_WATCHDOG
 config HAVE_ARCH_TRACEHOOK
 	bool
 
-config HAVE_DMA_ATTRS
-	bool
-
 config HAVE_DMA_CONTIGUOUS
 	bool
 
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index f515a4d..9d8a858 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -9,7 +9,6 @@ config ALPHA
 	select HAVE_OPROFILE
 	select HAVE_PCSPKR_PLATFORM
 	select HAVE_PERF_EVENTS
-	select HAVE_DMA_ATTRS
 	select VIRT_TO_BUS
 	select GENERIC_IRQ_PROBE
 	select AUTO_IRQ_AFFINITY if SMP
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index 72a8ca7..3c3451f 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -10,8 +10,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 	return dma_ops;
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 #define dma_cache_sync(dev, va, size, dir)		  ((void)0)
 
 #endif	/* _ALPHA_DMA_MAPPING_H */
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index fdf217c..2c2ac3f 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -38,7 +38,6 @@ config ARC
 	select OF_EARLY_FLATTREE
 	select PERF_USE_VMALLOC
 	select HAVE_DEBUG_STACKOVERFLOW
-	select HAVE_DMA_ATTRS
 
 config TRACE_IRQFLAGS_SUPPORT
 	def_bool y
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index 2a617f9..6602054 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -18,6 +18,4 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 	return &arc_dma_ops;
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 #endif
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index f1ed110..f359203 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -43,7 +43,6 @@ config ARM
 	select HAVE_C_RECORDMCOUNT
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DMA_API_DEBUG
-	select HAVE_DMA_ATTRS
 	select HAVE_DMA_CONTIGUOUS if MMU
 	select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) && !CPU_ENDIAN_BE32
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index ccb3aa6..6ad1ced 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -41,13 +41,6 @@ static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
 #define HAVE_ARCH_DMA_SUPPORTED 1
 extern int dma_supported(struct device *dev, u64 mask);
 
-/*
- * Note that while the generic code provides dummy dma_{alloc,free}_noncoherent
- * implementations, we don't provide a dma_cache_sync function so drivers using
- * this API are highlighted with build warnings.
- */
-#include <asm-generic/dma-mapping-common.h>
-
 #ifdef __arch_page_to_dma
 #error Please update to __arch_pfn_to_dma
 #endif
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 851fe11..4ebd1b9 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -60,7 +60,6 @@ config ARM64
 	select HAVE_DEBUG_BUGVERBOSE
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DMA_API_DEBUG
-	select HAVE_DMA_ATTRS
 	select HAVE_DMA_CONTIGUOUS
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 54d0ead..16dfd3b 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -71,8 +71,6 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
 	return (dma_addr_t)paddr;
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index b545384..b6878eb 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -17,7 +17,6 @@ config AVR32
 	select GENERIC_CLOCKEVENTS
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_RELA
-	select HAVE_DMA_ATTRS
 	help
 	  AVR32 is a high-performance 32-bit RISC microprocessor core,
 	  designed for cost-sensitive embedded applications, with particular
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index 0239ca8..1115f2a 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -11,6 +11,4 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 	return &avr32_dma_ops;
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 #endif /* __ASM_AVR32_DMA_MAPPING_H */
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index d3c68dd..af76634 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -40,7 +40,6 @@ config BLACKFIN
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_RELA
 	select HAVE_DEBUG_STACKOVERFLOW
-	select HAVE_DMA_ATTRS
 
 config GENERIC_CSUM
 	def_bool y
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index ea5a2e8..3490570 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -43,6 +43,4 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 	return &bfin_dma_ops;
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 #endif				/* _BLACKFIN_DMA_MAPPING_H */
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 8602f72..79049d4 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -18,7 +18,6 @@ config C6X
 	select GENERIC_CLOCKEVENTS
 	select MODULES_USE_ELF_RELA
 	select ARCH_NO_COHERENT_DMA_MMAP
-	select HAVE_DMA_ATTRS
 
 config MMU
 	def_bool n
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index 6aa20fd..b810147 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -24,6 +24,4 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 	return &c6x_dma_ops;
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 #endif	/* _ASM_C6X_DMA_MAPPING_H */
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index f5dd700..e086f9e 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -69,7 +69,6 @@ config CRIS
 	select GENERIC_CLOCKEVENTS if ETRAX_ARCH_V32
 	select GENERIC_SCHED_CLOCK if ETRAX_ARCH_V32
 	select HAVE_DEBUG_BUGVERBOSE if ETRAX_ARCH_V32
-	select HAVE_DMA_ATTRS
 
 config HZ
 	int
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index 34e7c7c..5a37017 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -16,8 +16,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 }
 #endif
 
-#include <asm-generic/dma-mapping-common.h>
-
 static inline void
 dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	       enum dma_data_direction direction)
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index d4fc724..4211be8 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -15,7 +15,6 @@ config FRV
 	select OLD_SIGACTION
 	select HAVE_DEBUG_STACKOVERFLOW
 	select ARCH_NO_COHERENT_DMA_MMAP
-	select HAVE_DMA_ATTRS
 
 config ZONE_DMA
 	bool
diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 750951c..9a82bfa 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -21,6 +21,4 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	flush_write_buffers();
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 #endif  /* _ASM_DMA_MAPPING_H */
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index db58916..275ad93 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -15,7 +15,6 @@ config H8300
 	select OF_IRQ
 	select OF_EARLY_FLATTREE
 	select HAVE_MEMBLOCK
-	select HAVE_DMA_ATTRS
 
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
index d9b5b80..7ac7fad 100644
--- a/arch/h8300/include/asm/dma-mapping.h
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -8,6 +8,4 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 	return &h8300_dma_map_ops;
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 #endif
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 4dc89d1..57298e7 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -27,7 +27,6 @@ config HEXAGON
 	select GENERIC_CLOCKEVENTS_BROADCAST
 	select MODULES_USE_ELF_RELA
 	select GENERIC_CPU_DEVICES
-	select HAVE_DMA_ATTRS
 	---help---
 	  Qualcomm Hexagon is a processor architecture designed for high
 	  performance and low power across a wide variety of applications.
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index 268fde8..aa62034 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -49,8 +49,6 @@ extern int dma_is_consistent(struct device *dev, dma_addr_t dma_handle);
 extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 			   enum dma_data_direction direction);
 
-#include <asm-generic/dma-mapping-common.h>
-
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
 	if (!dev->dma_mask)
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index eb0249e..fb0515e 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -25,7 +25,6 @@ config IA64
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
 	select HAVE_FUNCTION_TRACER
-	select HAVE_DMA_ATTRS
 	select TTY
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_DMA_API_DEBUG
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index 9beccf8..d472805 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -25,8 +25,6 @@ extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
 
 #define get_dma_ops(dev) platform_dma_get_ops(dev)
 
-#include <asm-generic/dma-mapping-common.h>
-
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
 	if (!dev->dma_mask)
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index d5d75b3..498b567 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -23,7 +23,6 @@ config M68K
 	select MODULES_USE_ELF_RELA
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
-	select HAVE_DMA_ATTRS
 
 config RWSEM_GENERIC_SPINLOCK
 	bool
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 2c082a6..96c5361 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -8,8 +8,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
         return &m68k_dma_ops;
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 				  enum dma_data_direction dir)
 {
diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig
index 36af3c0..0b389a8 100644
--- a/arch/metag/Kconfig
+++ b/arch/metag/Kconfig
@@ -29,7 +29,6 @@ config METAG
 	select OF
 	select OF_EARLY_FLATTREE
 	select SPARSE_IRQ
-	select HAVE_DMA_ATTRS
 
 config STACKTRACE_SUPPORT
 	def_bool y
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index 768f2e3..27af5d47 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -8,8 +8,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 	return &metag_dma_ops;
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 /*
  * dma_alloc_noncoherent() returns non-cacheable memory, so there's no need to
  * do any flushing here.
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 0bce820..d1f5891 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -19,7 +19,6 @@ config MICROBLAZE
 	select HAVE_ARCH_KGDB
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DMA_API_DEBUG
-	select HAVE_DMA_ATTRS
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_GRAPH_TRACER
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 24b1297..1884783 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -44,8 +44,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 	return &dma_direct_ops;
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 static inline void __dma_sync(unsigned long paddr,
 			      size_t size, enum dma_data_direction direction)
 {
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index e3aa5b0..1b41781 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -30,7 +30,6 @@ config MIPS
 	select RTC_LIB if !MACH_LOONGSON64
 	select GENERIC_ATOMIC64 if !64BIT
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
-	select HAVE_DMA_ATTRS
 	select HAVE_DMA_CONTIGUOUS
 	select HAVE_DMA_API_DEBUG
 	select GENERIC_IRQ_PROBE
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index e604f76..12fa79e 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -29,8 +29,6 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
-#include <asm-generic/dma-mapping-common.h>
-
 extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	       enum dma_data_direction direction);
 
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 1bf3af2..000745b 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -14,7 +14,6 @@ config MN10300
 	select OLD_SIGACTION
 	select HAVE_DEBUG_STACKOVERFLOW
 	select ARCH_NO_COHERENT_DMA_MMAP
-	select HAVE_DMA_ATTRS
 
 config AM33_2
 	def_bool n
diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index e69b013..1dcd447 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -28,6 +28,4 @@ void dma_cache_sync(void *vaddr, size_t size,
 	mn10300_dcache_flush_inv();
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 #endif
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 4b2504d..4375554 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -16,7 +16,6 @@ config NIOS2
 	select SOC_BUS
 	select SPARSE_IRQ
 	select USB_ARCH_HAS_HCD if USB_SUPPORT
-	select HAVE_DMA_ATTRS
 
 config GENERIC_CSUM
 	def_bool y
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 443f44d..e118c02 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -29,9 +29,6 @@ config OPENRISC
 config MMU
 	def_bool y
 
-config HAVE_DMA_ATTRS
-	def_bool y
-
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index 413bfcf..1f260bc 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -42,6 +42,4 @@ static inline int dma_supported(struct device *dev, u64 dma_mask)
 	return dma_mask == DMA_BIT_MASK(32);
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 #endif	/* __ASM_OPENRISC_DMA_MAPPING_H */
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index bdabfcd..f6fa59e 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -30,7 +30,6 @@ config PARISC
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_ARCH_AUDITSYSCALL
 	select ARCH_NO_COHERENT_DMA_MMAP
-	select HAVE_DMA_ATTRS
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 4de5186..16e0246 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -83,6 +83,4 @@ struct parisc_device;
 void * sba_get_iommu(struct parisc_device *dev);
 #endif
 
-#include <asm-generic/dma-mapping-common.h>
-
 #endif
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index db49e0d..855e644 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -111,7 +111,6 @@ config PPC
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
-	select HAVE_DMA_ATTRS
 	select HAVE_DMA_API_DEBUG
 	select HAVE_OPROFILE
 	select HAVE_DEBUG_KMEMLEAK
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 7f522c0..77816ac 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -125,8 +125,6 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
 #define HAVE_ARCH_DMA_SET_MASK 1
 extern int dma_set_mask(struct device *dev, u64 dma_mask);
 
-#include <asm-generic/dma-mapping-common.h>
-
 extern int __dma_set_mask(struct device *dev, u64 dma_mask);
 extern u64 __dma_get_required_mask(struct device *dev);
 
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 3a55f49..919e3f0 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -582,7 +582,6 @@ config QDIO
 
 menuconfig PCI
 	bool "PCI support"
-	select HAVE_DMA_ATTRS
 	select PCI_MSI
 	select IOMMU_SUPPORT
 	help
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index b3fd54d..e64bfcb 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -23,8 +23,6 @@ static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 {
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
 	if (!dev->dma_mask)
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index d514df7e..9ded138 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -11,7 +11,6 @@ config SUPERH
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_DMA_API_DEBUG
-	select HAVE_DMA_ATTRS
 	select HAVE_PERF_EVENTS
 	select HAVE_DEBUG_BUGVERBOSE
 	select ARCH_HAVE_CUSTOM_GPIO_H
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index a3745a3..e11cf0c 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -11,8 +11,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 
 #define DMA_ERROR_CODE 0
 
-#include <asm-generic/dma-mapping-common.h>
-
 void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 		    enum dma_data_direction dir);
 
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 56442d2..64dc438 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -26,7 +26,6 @@ config SPARC
 	select RTC_CLASS
 	select RTC_DRV_M48T59
 	select RTC_SYSTOHC
-	select HAVE_DMA_ATTRS
 	select HAVE_DMA_API_DEBUG
 	select HAVE_ARCH_JUMP_LABEL if SPARC64
 	select GENERIC_IRQ_SHOW
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 2777092..1180ae2 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -37,6 +37,4 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 	return dma_ops;
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 #endif
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 106c21b..5227501 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -5,7 +5,6 @@ config TILE
 	def_bool y
 	select HAVE_PERF_EVENTS
 	select USE_PMC if PERF_EVENTS
-	select HAVE_DMA_ATTRS
 	select HAVE_DMA_API_DEBUG
 	select HAVE_KVM if !TILEGX
 	select GENERIC_FIND_FIRST_BIT
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index c342736..01ceb4a 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -73,9 +73,6 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 }
 
 #define HAVE_ARCH_DMA_SET_MASK 1
-
-#include <asm-generic/dma-mapping-common.h>
-
 int dma_set_mask(struct device *dev, u64 mask);
 
 /*
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index c9faddc..4a7dc1a 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -4,7 +4,6 @@ config UNICORE32
 	select ARCH_MIGHT_HAVE_PC_SERIO
 	select HAVE_MEMBLOCK
 	select HAVE_GENERIC_DMA_COHERENT
-	select HAVE_DMA_ATTRS
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_BZIP2
 	select GENERIC_ATOMIC64
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 8140e05..4749854 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -28,8 +28,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 	return &swiotlb_dma_map_ops;
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
 	if (dev && dev->dma_mask)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index db3622f..db6a408 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -96,7 +96,6 @@ config X86
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_DMA_API_DEBUG
-	select HAVE_DMA_ATTRS
 	select HAVE_DMA_CONTIGUOUS
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 953b726..3a27b93 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -46,8 +46,6 @@ bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
 #define HAVE_ARCH_DMA_SUPPORTED 1
 extern int dma_supported(struct device *hwdev, u64 mask);
 
-#include <asm-generic/dma-mapping-common.h>
-
 extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 					dma_addr_t *dma_addr, gfp_t flag,
 					struct dma_attrs *attrs);
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 3bd3504..b1f9c4e 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -15,7 +15,6 @@ config XTENSA
 	select GENERIC_PCI_IOMAP
 	select GENERIC_SCHED_CLOCK
 	select HAVE_DMA_API_DEBUG
-	select HAVE_DMA_ATTRS
 	select HAVE_FUNCTION_TRACER
 	select HAVE_IRQ_TIME_ACCOUNTING
 	select HAVE_OPROFILE
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 4427f38..32350e9 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -30,8 +30,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 		return &xtensa_dma_map_ops;
 }
 
-#include <asm-generic/dma-mapping-common.h>
-
 void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 		    enum dma_data_direction direction);
 
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 1a0a8df..9091fef 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -82,13 +82,13 @@ config DRM_TTM
 
 config DRM_GEM_CMA_HELPER
 	bool
-	depends on DRM && HAVE_DMA_ATTRS
+	depends on DRM
 	help
 	  Choose this if you need the GEM CMA helper functions
 
 config DRM_KMS_CMA_HELPER
 	bool
-	depends on DRM && HAVE_DMA_ATTRS
+	depends on DRM
 	select DRM_GEM_CMA_HELPER
 	select DRM_KMS_FB_HELPER
 	select FB_SYS_FILLRECT
diff --git a/drivers/gpu/drm/imx/Kconfig b/drivers/gpu/drm/imx/Kconfig
index 2b81a41..cda71db 100644
--- a/drivers/gpu/drm/imx/Kconfig
+++ b/drivers/gpu/drm/imx/Kconfig
@@ -5,7 +5,7 @@ config DRM_IMX
 	select VIDEOMODE_HELPERS
 	select DRM_GEM_CMA_HELPER
 	select DRM_KMS_CMA_HELPER
-	depends on DRM && (ARCH_MXC || ARCH_MULTIPLATFORM) && HAVE_DMA_ATTRS
+	depends on DRM && (ARCH_MXC || ARCH_MULTIPLATFORM)
 	depends on IMX_IPUV3_CORE
 	help
 	  enable i.MX graphics support
diff --git a/drivers/gpu/drm/rcar-du/Kconfig b/drivers/gpu/drm/rcar-du/Kconfig
index 11485a4..2324a52 100644
--- a/drivers/gpu/drm/rcar-du/Kconfig
+++ b/drivers/gpu/drm/rcar-du/Kconfig
@@ -1,6 +1,6 @@
 config DRM_RCAR_DU
 	tristate "DRM Support for R-Car Display Unit"
-	depends on DRM && ARM && HAVE_DMA_ATTRS
+	depends on DRM && ARM
 	depends on ARCH_SHMOBILE || COMPILE_TEST
 	select DRM_KMS_HELPER
 	select DRM_KMS_CMA_HELPER
diff --git a/drivers/gpu/drm/shmobile/Kconfig b/drivers/gpu/drm/shmobile/Kconfig
index b9202aa..8d17d00 100644
--- a/drivers/gpu/drm/shmobile/Kconfig
+++ b/drivers/gpu/drm/shmobile/Kconfig
@@ -1,6 +1,6 @@
 config DRM_SHMOBILE
 	tristate "DRM Support for SH Mobile"
-	depends on DRM && ARM && HAVE_DMA_ATTRS
+	depends on DRM && ARM
 	depends on ARCH_SHMOBILE || COMPILE_TEST
 	depends on FB_SH_MOBILE_MERAM || !FB_SH_MOBILE_MERAM
 	select BACKLIGHT_CLASS_DEVICE
diff --git a/drivers/gpu/drm/sti/Kconfig b/drivers/gpu/drm/sti/Kconfig
index fbccc10..20d5f77 100644
--- a/drivers/gpu/drm/sti/Kconfig
+++ b/drivers/gpu/drm/sti/Kconfig
@@ -1,6 +1,6 @@
 config DRM_STI
 	tristate "DRM Support for STMicroelectronics SoC stiH41x Series"
-	depends on DRM && (SOC_STIH415 || SOC_STIH416 || ARCH_MULTIPLATFORM) && HAVE_DMA_ATTRS
+	depends on DRM && (SOC_STIH415 || SOC_STIH416 || ARCH_MULTIPLATFORM)
 	select RESET_CONTROLLER
 	select DRM_KMS_HELPER
 	select DRM_GEM_CMA_HELPER
diff --git a/drivers/gpu/drm/tilcdc/Kconfig b/drivers/gpu/drm/tilcdc/Kconfig
index 78beafb..f60a1ec 100644
--- a/drivers/gpu/drm/tilcdc/Kconfig
+++ b/drivers/gpu/drm/tilcdc/Kconfig
@@ -1,6 +1,6 @@
 config DRM_TILCDC
 	tristate "DRM Support for TI LCDC Display Controller"
-	depends on DRM && OF && ARM && HAVE_DMA_ATTRS
+	depends on DRM && OF && ARM
 	select DRM_KMS_HELPER
 	select DRM_KMS_FB_HELPER
 	select DRM_KMS_CMA_HELPER
diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index ccbc974..15431c1 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -216,7 +216,6 @@ config VIDEO_STI_BDISP
 	tristate "STMicroelectronics BDISP 2D blitter driver"
 	depends on VIDEO_DEV && VIDEO_V4L2
 	depends on ARCH_STI || COMPILE_TEST
-	depends on HAVE_DMA_ATTRS
 	select VIDEOBUF2_DMA_CONTIG
 	select V4L2_MEM2MEM_DEV
 	help
diff --git a/include/asm-generic/dma-mapping-broken.h b/include/asm-generic/dma-mapping-broken.h
deleted file mode 100644
index 6c32af9..0000000
--- a/include/asm-generic/dma-mapping-broken.h
+++ /dev/null
@@ -1,95 +0,0 @@
-#ifndef _ASM_GENERIC_DMA_MAPPING_H
-#define _ASM_GENERIC_DMA_MAPPING_H
-
-/* define the dma api to allow compilation but not linking of
- * dma dependent code.  Code that depends on the dma-mapping
- * API needs to set 'depends on HAS_DMA' in its Kconfig
- */
-
-struct scatterlist;
-
-extern void *
-dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
-		   gfp_t flag);
-
-extern void
-dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
-		    dma_addr_t dma_handle);
-
-static inline void *dma_alloc_attrs(struct device *dev, size_t size,
-				    dma_addr_t *dma_handle, gfp_t flag,
-				    struct dma_attrs *attrs)
-{
-	/* attrs is not supported and ignored */
-	return dma_alloc_coherent(dev, size, dma_handle, flag);
-}
-
-static inline void dma_free_attrs(struct device *dev, size_t size,
-				  void *cpu_addr, dma_addr_t dma_handle,
-				  struct dma_attrs *attrs)
-{
-	/* attrs is not supported and ignored */
-	dma_free_coherent(dev, size, cpu_addr, dma_handle);
-}
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-
-extern dma_addr_t
-dma_map_single(struct device *dev, void *ptr, size_t size,
-	       enum dma_data_direction direction);
-
-extern void
-dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
-		 enum dma_data_direction direction);
-
-extern int
-dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
-	   enum dma_data_direction direction);
-
-extern void
-dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
-	     enum dma_data_direction direction);
-
-extern dma_addr_t
-dma_map_page(struct device *dev, struct page *page, unsigned long offset,
-	     size_t size, enum dma_data_direction direction);
-
-extern void
-dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
-	       enum dma_data_direction direction);
-
-extern void
-dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
-			enum dma_data_direction direction);
-
-extern void
-dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
-			      unsigned long offset, size_t size,
-			      enum dma_data_direction direction);
-
-extern void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
-		    enum dma_data_direction direction);
-
-#define dma_sync_single_for_device dma_sync_single_for_cpu
-#define dma_sync_single_range_for_device dma_sync_single_range_for_cpu
-#define dma_sync_sg_for_device dma_sync_sg_for_cpu
-
-extern int
-dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
-
-extern int
-dma_supported(struct device *dev, u64 mask);
-
-extern int
-dma_set_mask(struct device *dev, u64 mask);
-
-extern int
-dma_get_cache_alignment(void);
-
-extern void
-dma_cache_sync(struct device *dev, void *vaddr, size_t size,
-	       enum dma_data_direction direction);
-
-#endif /* _ASM_GENERIC_DMA_MAPPING_H */
diff --git a/include/asm-generic/dma-mapping-common.h b/include/asm-generic/dma-mapping-common.h
deleted file mode 100644
index b1bc954..0000000
--- a/include/asm-generic/dma-mapping-common.h
+++ /dev/null
@@ -1,358 +0,0 @@
-#ifndef _ASM_GENERIC_DMA_MAPPING_H
-#define _ASM_GENERIC_DMA_MAPPING_H
-
-#include <linux/kmemcheck.h>
-#include <linux/bug.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
-#include <linux/dma-attrs.h>
-#include <asm-generic/dma-coherent.h>
-
-static inline dma_addr_t dma_map_single_attrs(struct device *dev, void *ptr,
-					      size_t size,
-					      enum dma_data_direction dir,
-					      struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-	dma_addr_t addr;
-
-	kmemcheck_mark_initialized(ptr, size);
-	BUG_ON(!valid_dma_direction(dir));
-	addr = ops->map_page(dev, virt_to_page(ptr),
-			     (unsigned long)ptr & ~PAGE_MASK, size,
-			     dir, attrs);
-	debug_dma_map_page(dev, virt_to_page(ptr),
-			   (unsigned long)ptr & ~PAGE_MASK, size,
-			   dir, addr, true);
-	return addr;
-}
-
-static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t addr,
-					  size_t size,
-					  enum dma_data_direction dir,
-					  struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	BUG_ON(!valid_dma_direction(dir));
-	if (ops->unmap_page)
-		ops->unmap_page(dev, addr, size, dir, attrs);
-	debug_dma_unmap_page(dev, addr, size, dir, true);
-}
-
-/*
- * dma_maps_sg_attrs returns 0 on error and > 0 on success.
- * It should never return a value < 0.
- */
-static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
-				   int nents, enum dma_data_direction dir,
-				   struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-	int i, ents;
-	struct scatterlist *s;
-
-	for_each_sg(sg, s, nents, i)
-		kmemcheck_mark_initialized(sg_virt(s), s->length);
-	BUG_ON(!valid_dma_direction(dir));
-	ents = ops->map_sg(dev, sg, nents, dir, attrs);
-	BUG_ON(ents < 0);
-	debug_dma_map_sg(dev, sg, nents, ents, dir);
-
-	return ents;
-}
-
-static inline void dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sg,
-				      int nents, enum dma_data_direction dir,
-				      struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	BUG_ON(!valid_dma_direction(dir));
-	debug_dma_unmap_sg(dev, sg, nents, dir);
-	if (ops->unmap_sg)
-		ops->unmap_sg(dev, sg, nents, dir, attrs);
-}
-
-static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
-				      size_t offset, size_t size,
-				      enum dma_data_direction dir)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-	dma_addr_t addr;
-
-	kmemcheck_mark_initialized(page_address(page) + offset, size);
-	BUG_ON(!valid_dma_direction(dir));
-	addr = ops->map_page(dev, page, offset, size, dir, NULL);
-	debug_dma_map_page(dev, page, offset, size, dir, addr, false);
-
-	return addr;
-}
-
-static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
-				  size_t size, enum dma_data_direction dir)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	BUG_ON(!valid_dma_direction(dir));
-	if (ops->unmap_page)
-		ops->unmap_page(dev, addr, size, dir, NULL);
-	debug_dma_unmap_page(dev, addr, size, dir, false);
-}
-
-static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t addr,
-					   size_t size,
-					   enum dma_data_direction dir)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	BUG_ON(!valid_dma_direction(dir));
-	if (ops->sync_single_for_cpu)
-		ops->sync_single_for_cpu(dev, addr, size, dir);
-	debug_dma_sync_single_for_cpu(dev, addr, size, dir);
-}
-
-static inline void dma_sync_single_for_device(struct device *dev,
-					      dma_addr_t addr, size_t size,
-					      enum dma_data_direction dir)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	BUG_ON(!valid_dma_direction(dir));
-	if (ops->sync_single_for_device)
-		ops->sync_single_for_device(dev, addr, size, dir);
-	debug_dma_sync_single_for_device(dev, addr, size, dir);
-}
-
-static inline void dma_sync_single_range_for_cpu(struct device *dev,
-						 dma_addr_t addr,
-						 unsigned long offset,
-						 size_t size,
-						 enum dma_data_direction dir)
-{
-	const struct dma_map_ops *ops = get_dma_ops(dev);
-
-	BUG_ON(!valid_dma_direction(dir));
-	if (ops->sync_single_for_cpu)
-		ops->sync_single_for_cpu(dev, addr + offset, size, dir);
-	debug_dma_sync_single_range_for_cpu(dev, addr, offset, size, dir);
-}
-
-static inline void dma_sync_single_range_for_device(struct device *dev,
-						    dma_addr_t addr,
-						    unsigned long offset,
-						    size_t size,
-						    enum dma_data_direction dir)
-{
-	const struct dma_map_ops *ops = get_dma_ops(dev);
-
-	BUG_ON(!valid_dma_direction(dir));
-	if (ops->sync_single_for_device)
-		ops->sync_single_for_device(dev, addr + offset, size, dir);
-	debug_dma_sync_single_range_for_device(dev, addr, offset, size, dir);
-}
-
-static inline void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
-		    int nelems, enum dma_data_direction dir)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	BUG_ON(!valid_dma_direction(dir));
-	if (ops->sync_sg_for_cpu)
-		ops->sync_sg_for_cpu(dev, sg, nelems, dir);
-	debug_dma_sync_sg_for_cpu(dev, sg, nelems, dir);
-}
-
-static inline void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-		       int nelems, enum dma_data_direction dir)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	BUG_ON(!valid_dma_direction(dir));
-	if (ops->sync_sg_for_device)
-		ops->sync_sg_for_device(dev, sg, nelems, dir);
-	debug_dma_sync_sg_for_device(dev, sg, nelems, dir);
-
-}
-
-#define dma_map_single(d, a, s, r) dma_map_single_attrs(d, a, s, r, NULL)
-#define dma_unmap_single(d, a, s, r) dma_unmap_single_attrs(d, a, s, r, NULL)
-#define dma_map_sg(d, s, n, r) dma_map_sg_attrs(d, s, n, r, NULL)
-#define dma_unmap_sg(d, s, n, r) dma_unmap_sg_attrs(d, s, n, r, NULL)
-
-extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
-			   void *cpu_addr, dma_addr_t dma_addr, size_t size);
-
-void *dma_common_contiguous_remap(struct page *page, size_t size,
-			unsigned long vm_flags,
-			pgprot_t prot, const void *caller);
-
-void *dma_common_pages_remap(struct page **pages, size_t size,
-			unsigned long vm_flags, pgprot_t prot,
-			const void *caller);
-void dma_common_free_remap(void *cpu_addr, size_t size, unsigned long vm_flags);
-
-/**
- * dma_mmap_attrs - map a coherent DMA allocation into user space
- * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @vma: vm_area_struct describing requested user mapping
- * @cpu_addr: kernel CPU-view address returned from dma_alloc_attrs
- * @handle: device-view address returned from dma_alloc_attrs
- * @size: size of memory originally requested in dma_alloc_attrs
- * @attrs: attributes of mapping properties requested in dma_alloc_attrs
- *
- * Map a coherent DMA buffer previously allocated by dma_alloc_attrs
- * into user space.  The coherent DMA buffer must not be freed by the
- * driver until the user space mapping has been released.
- */
-static inline int
-dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma, void *cpu_addr,
-	       dma_addr_t dma_addr, size_t size, struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-	BUG_ON(!ops);
-	if (ops->mmap)
-		return ops->mmap(dev, vma, cpu_addr, dma_addr, size, attrs);
-	return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size);
-}
-
-#define dma_mmap_coherent(d, v, c, h, s) dma_mmap_attrs(d, v, c, h, s, NULL)
-
-int
-dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
-		       void *cpu_addr, dma_addr_t dma_addr, size_t size);
-
-static inline int
-dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, void *cpu_addr,
-		      dma_addr_t dma_addr, size_t size, struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-	BUG_ON(!ops);
-	if (ops->get_sgtable)
-		return ops->get_sgtable(dev, sgt, cpu_addr, dma_addr, size,
-					attrs);
-	return dma_common_get_sgtable(dev, sgt, cpu_addr, dma_addr, size);
-}
-
-#define dma_get_sgtable(d, t, v, h, s) dma_get_sgtable_attrs(d, t, v, h, s, NULL)
-
-#ifndef arch_dma_alloc_attrs
-#define arch_dma_alloc_attrs(dev, flag)	(true)
-#endif
-
-static inline void *dma_alloc_attrs(struct device *dev, size_t size,
-				       dma_addr_t *dma_handle, gfp_t flag,
-				       struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-	void *cpu_addr;
-
-	BUG_ON(!ops);
-
-	if (dma_alloc_from_coherent(dev, size, dma_handle, &cpu_addr))
-		return cpu_addr;
-
-	if (!arch_dma_alloc_attrs(&dev, &flag))
-		return NULL;
-	if (!ops->alloc)
-		return NULL;
-
-	cpu_addr = ops->alloc(dev, size, dma_handle, flag, attrs);
-	debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr);
-	return cpu_addr;
-}
-
-static inline void dma_free_attrs(struct device *dev, size_t size,
-				     void *cpu_addr, dma_addr_t dma_handle,
-				     struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	BUG_ON(!ops);
-	WARN_ON(irqs_disabled());
-
-	if (dma_release_from_coherent(dev, get_order(size), cpu_addr))
-		return;
-
-	if (!ops->free)
-		return;
-
-	debug_dma_free_coherent(dev, size, cpu_addr, dma_handle);
-	ops->free(dev, size, cpu_addr, dma_handle, attrs);
-}
-
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t flag)
-{
-	return dma_alloc_attrs(dev, size, dma_handle, flag, NULL);
-}
-
-static inline void dma_free_coherent(struct device *dev, size_t size,
-		void *cpu_addr, dma_addr_t dma_handle)
-{
-	return dma_free_attrs(dev, size, cpu_addr, dma_handle, NULL);
-}
-
-static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp)
-{
-	DEFINE_DMA_ATTRS(attrs);
-
-	dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs);
-	return dma_alloc_attrs(dev, size, dma_handle, gfp, &attrs);
-}
-
-static inline void dma_free_noncoherent(struct device *dev, size_t size,
-		void *cpu_addr, dma_addr_t dma_handle)
-{
-	DEFINE_DMA_ATTRS(attrs);
-
-	dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs);
-	dma_free_attrs(dev, size, cpu_addr, dma_handle, &attrs);
-}
-
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	debug_dma_mapping_error(dev, dma_addr);
-
-	if (get_dma_ops(dev)->mapping_error)
-		return get_dma_ops(dev)->mapping_error(dev, dma_addr);
-
-#ifdef DMA_ERROR_CODE
-	return dma_addr == DMA_ERROR_CODE;
-#else
-	return 0;
-#endif
-}
-
-#ifndef HAVE_ARCH_DMA_SUPPORTED
-static inline int dma_supported(struct device *dev, u64 mask)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	if (!ops)
-		return 0;
-	if (!ops->dma_supported)
-		return 1;
-	return ops->dma_supported(dev, mask);
-}
-#endif
-
-#ifndef HAVE_ARCH_DMA_SET_MASK
-static inline int dma_set_mask(struct device *dev, u64 mask)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	if (ops->set_dma_mask)
-		return ops->set_dma_mask(dev, mask);
-
-	if (!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-	*dev->dma_mask = mask;
-	return 0;
-}
-#endif
-
-#endif
diff --git a/include/linux/dma-attrs.h b/include/linux/dma-attrs.h
index c8e1831..99c0be0 100644
--- a/include/linux/dma-attrs.h
+++ b/include/linux/dma-attrs.h
@@ -41,7 +41,6 @@ static inline void init_dma_attrs(struct dma_attrs *attrs)
 	bitmap_zero(attrs->flags, __DMA_ATTRS_LONGS);
 }
 
-#ifdef CONFIG_HAVE_DMA_ATTRS
 /**
  * dma_set_attr - set a specific attribute
  * @attr: attribute to set
@@ -67,14 +66,5 @@ static inline int dma_get_attr(enum dma_attr attr, struct dma_attrs *attrs)
 	BUG_ON(attr >= DMA_ATTR_MAX);
 	return test_bit(attr, attrs->flags);
 }
-#else /* !CONFIG_HAVE_DMA_ATTRS */
-static inline void dma_set_attr(enum dma_attr attr, struct dma_attrs *attrs)
-{
-}
 
-static inline int dma_get_attr(enum dma_attr attr, struct dma_attrs *attrs)
-{
-	return 0;
-}
-#endif /* CONFIG_HAVE_DMA_ATTRS */
 #endif /* _DMA_ATTR_H */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 2e551e2..cc0517b 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -6,8 +6,12 @@
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/dma-attrs.h>
+#include <linux/dma-debug.h>
 #include <linux/dma-direction.h>
 #include <linux/scatterlist.h>
+#include <linux/kmemcheck.h>
+#include <linux/bug.h>
+#include <asm-generic/dma-coherent.h>
 
 /*
  * A dma_addr_t can hold any valid DMA or bus address for the platform.
@@ -86,7 +90,363 @@ static inline int is_device_dma_capable(struct device *dev)
 #ifdef CONFIG_HAS_DMA
 #include <asm/dma-mapping.h>
 #else
-#include <asm-generic/dma-mapping-broken.h>
+/*
+ * Define the dma api to allow compilation but not linking of
+ * dma dependent code.  Code that depends on the dma-mapping
+ * API needs to set 'depends on HAS_DMA' in its Kconfig
+ */
+extern struct dma_map_ops bad_dma_ops;
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+{
+	return &bad_dma_ops;
+}
+#endif
+
+static inline dma_addr_t dma_map_single_attrs(struct device *dev, void *ptr,
+					      size_t size,
+					      enum dma_data_direction dir,
+					      struct dma_attrs *attrs)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+	dma_addr_t addr;
+
+	kmemcheck_mark_initialized(ptr, size);
+	BUG_ON(!valid_dma_direction(dir));
+	addr = ops->map_page(dev, virt_to_page(ptr),
+			     (unsigned long)ptr & ~PAGE_MASK, size,
+			     dir, attrs);
+	debug_dma_map_page(dev, virt_to_page(ptr),
+			   (unsigned long)ptr & ~PAGE_MASK, size,
+			   dir, addr, true);
+	return addr;
+}
+
+static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t addr,
+					  size_t size,
+					  enum dma_data_direction dir,
+					  struct dma_attrs *attrs)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	BUG_ON(!valid_dma_direction(dir));
+	if (ops->unmap_page)
+		ops->unmap_page(dev, addr, size, dir, attrs);
+	debug_dma_unmap_page(dev, addr, size, dir, true);
+}
+
+/*
+ * dma_maps_sg_attrs returns 0 on error and > 0 on success.
+ * It should never return a value < 0.
+ */
+static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
+				   int nents, enum dma_data_direction dir,
+				   struct dma_attrs *attrs)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+	int i, ents;
+	struct scatterlist *s;
+
+	for_each_sg(sg, s, nents, i)
+		kmemcheck_mark_initialized(sg_virt(s), s->length);
+	BUG_ON(!valid_dma_direction(dir));
+	ents = ops->map_sg(dev, sg, nents, dir, attrs);
+	BUG_ON(ents < 0);
+	debug_dma_map_sg(dev, sg, nents, ents, dir);
+
+	return ents;
+}
+
+static inline void dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sg,
+				      int nents, enum dma_data_direction dir,
+				      struct dma_attrs *attrs)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	BUG_ON(!valid_dma_direction(dir));
+	debug_dma_unmap_sg(dev, sg, nents, dir);
+	if (ops->unmap_sg)
+		ops->unmap_sg(dev, sg, nents, dir, attrs);
+}
+
+static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
+				      size_t offset, size_t size,
+				      enum dma_data_direction dir)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+	dma_addr_t addr;
+
+	kmemcheck_mark_initialized(page_address(page) + offset, size);
+	BUG_ON(!valid_dma_direction(dir));
+	addr = ops->map_page(dev, page, offset, size, dir, NULL);
+	debug_dma_map_page(dev, page, offset, size, dir, addr, false);
+
+	return addr;
+}
+
+static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
+				  size_t size, enum dma_data_direction dir)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	BUG_ON(!valid_dma_direction(dir));
+	if (ops->unmap_page)
+		ops->unmap_page(dev, addr, size, dir, NULL);
+	debug_dma_unmap_page(dev, addr, size, dir, false);
+}
+
+static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t addr,
+					   size_t size,
+					   enum dma_data_direction dir)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	BUG_ON(!valid_dma_direction(dir));
+	if (ops->sync_single_for_cpu)
+		ops->sync_single_for_cpu(dev, addr, size, dir);
+	debug_dma_sync_single_for_cpu(dev, addr, size, dir);
+}
+
+static inline void dma_sync_single_for_device(struct device *dev,
+					      dma_addr_t addr, size_t size,
+					      enum dma_data_direction dir)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	BUG_ON(!valid_dma_direction(dir));
+	if (ops->sync_single_for_device)
+		ops->sync_single_for_device(dev, addr, size, dir);
+	debug_dma_sync_single_for_device(dev, addr, size, dir);
+}
+
+static inline void dma_sync_single_range_for_cpu(struct device *dev,
+						 dma_addr_t addr,
+						 unsigned long offset,
+						 size_t size,
+						 enum dma_data_direction dir)
+{
+	const struct dma_map_ops *ops = get_dma_ops(dev);
+
+	BUG_ON(!valid_dma_direction(dir));
+	if (ops->sync_single_for_cpu)
+		ops->sync_single_for_cpu(dev, addr + offset, size, dir);
+	debug_dma_sync_single_range_for_cpu(dev, addr, offset, size, dir);
+}
+
+static inline void dma_sync_single_range_for_device(struct device *dev,
+						    dma_addr_t addr,
+						    unsigned long offset,
+						    size_t size,
+						    enum dma_data_direction dir)
+{
+	const struct dma_map_ops *ops = get_dma_ops(dev);
+
+	BUG_ON(!valid_dma_direction(dir));
+	if (ops->sync_single_for_device)
+		ops->sync_single_for_device(dev, addr + offset, size, dir);
+	debug_dma_sync_single_range_for_device(dev, addr, offset, size, dir);
+}
+
+static inline void
+dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+		    int nelems, enum dma_data_direction dir)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	BUG_ON(!valid_dma_direction(dir));
+	if (ops->sync_sg_for_cpu)
+		ops->sync_sg_for_cpu(dev, sg, nelems, dir);
+	debug_dma_sync_sg_for_cpu(dev, sg, nelems, dir);
+}
+
+static inline void
+dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+		       int nelems, enum dma_data_direction dir)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	BUG_ON(!valid_dma_direction(dir));
+	if (ops->sync_sg_for_device)
+		ops->sync_sg_for_device(dev, sg, nelems, dir);
+	debug_dma_sync_sg_for_device(dev, sg, nelems, dir);
+
+}
+
+#define dma_map_single(d, a, s, r) dma_map_single_attrs(d, a, s, r, NULL)
+#define dma_unmap_single(d, a, s, r) dma_unmap_single_attrs(d, a, s, r, NULL)
+#define dma_map_sg(d, s, n, r) dma_map_sg_attrs(d, s, n, r, NULL)
+#define dma_unmap_sg(d, s, n, r) dma_unmap_sg_attrs(d, s, n, r, NULL)
+
+extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
+			   void *cpu_addr, dma_addr_t dma_addr, size_t size);
+
+void *dma_common_contiguous_remap(struct page *page, size_t size,
+			unsigned long vm_flags,
+			pgprot_t prot, const void *caller);
+
+void *dma_common_pages_remap(struct page **pages, size_t size,
+			unsigned long vm_flags, pgprot_t prot,
+			const void *caller);
+void dma_common_free_remap(void *cpu_addr, size_t size, unsigned long vm_flags);
+
+/**
+ * dma_mmap_attrs - map a coherent DMA allocation into user space
+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
+ * @vma: vm_area_struct describing requested user mapping
+ * @cpu_addr: kernel CPU-view address returned from dma_alloc_attrs
+ * @handle: device-view address returned from dma_alloc_attrs
+ * @size: size of memory originally requested in dma_alloc_attrs
+ * @attrs: attributes of mapping properties requested in dma_alloc_attrs
+ *
+ * Map a coherent DMA buffer previously allocated by dma_alloc_attrs
+ * into user space.  The coherent DMA buffer must not be freed by the
+ * driver until the user space mapping has been released.
+ */
+static inline int
+dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma, void *cpu_addr,
+	       dma_addr_t dma_addr, size_t size, struct dma_attrs *attrs)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+	BUG_ON(!ops);
+	if (ops->mmap)
+		return ops->mmap(dev, vma, cpu_addr, dma_addr, size, attrs);
+	return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size);
+}
+
+#define dma_mmap_coherent(d, v, c, h, s) dma_mmap_attrs(d, v, c, h, s, NULL)
+
+int
+dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
+		       void *cpu_addr, dma_addr_t dma_addr, size_t size);
+
+static inline int
+dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, void *cpu_addr,
+		      dma_addr_t dma_addr, size_t size, struct dma_attrs *attrs)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+	BUG_ON(!ops);
+	if (ops->get_sgtable)
+		return ops->get_sgtable(dev, sgt, cpu_addr, dma_addr, size,
+					attrs);
+	return dma_common_get_sgtable(dev, sgt, cpu_addr, dma_addr, size);
+}
+
+#define dma_get_sgtable(d, t, v, h, s) dma_get_sgtable_attrs(d, t, v, h, s, NULL)
+
+#ifndef arch_dma_alloc_attrs
+#define arch_dma_alloc_attrs(dev, flag)	(true)
+#endif
+
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+				       dma_addr_t *dma_handle, gfp_t flag,
+				       struct dma_attrs *attrs)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+	void *cpu_addr;
+
+	BUG_ON(!ops);
+
+	if (dma_alloc_from_coherent(dev, size, dma_handle, &cpu_addr))
+		return cpu_addr;
+
+	if (!arch_dma_alloc_attrs(&dev, &flag))
+		return NULL;
+	if (!ops->alloc)
+		return NULL;
+
+	cpu_addr = ops->alloc(dev, size, dma_handle, flag, attrs);
+	debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr);
+	return cpu_addr;
+}
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+				     void *cpu_addr, dma_addr_t dma_handle,
+				     struct dma_attrs *attrs)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	BUG_ON(!ops);
+	WARN_ON(irqs_disabled());
+
+	if (dma_release_from_coherent(dev, get_order(size), cpu_addr))
+		return;
+
+	if (!ops->free)
+		return;
+
+	debug_dma_free_coherent(dev, size, cpu_addr, dma_handle);
+	ops->free(dev, size, cpu_addr, dma_handle, attrs);
+}
+
+static inline void *dma_alloc_coherent(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t flag)
+{
+	return dma_alloc_attrs(dev, size, dma_handle, flag, NULL);
+}
+
+static inline void dma_free_coherent(struct device *dev, size_t size,
+		void *cpu_addr, dma_addr_t dma_handle)
+{
+	return dma_free_attrs(dev, size, cpu_addr, dma_handle, NULL);
+}
+
+static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp)
+{
+	DEFINE_DMA_ATTRS(attrs);
+
+	dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs);
+	return dma_alloc_attrs(dev, size, dma_handle, gfp, &attrs);
+}
+
+static inline void dma_free_noncoherent(struct device *dev, size_t size,
+		void *cpu_addr, dma_addr_t dma_handle)
+{
+	DEFINE_DMA_ATTRS(attrs);
+
+	dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs);
+	dma_free_attrs(dev, size, cpu_addr, dma_handle, &attrs);
+}
+
+static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+	debug_dma_mapping_error(dev, dma_addr);
+
+	if (get_dma_ops(dev)->mapping_error)
+		return get_dma_ops(dev)->mapping_error(dev, dma_addr);
+
+#ifdef DMA_ERROR_CODE
+	return dma_addr == DMA_ERROR_CODE;
+#else
+	return 0;
+#endif
+}
+
+#ifndef HAVE_ARCH_DMA_SUPPORTED
+static inline int dma_supported(struct device *dev, u64 mask)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	if (!ops)
+		return 0;
+	if (!ops->dma_supported)
+		return 1;
+	return ops->dma_supported(dev, mask);
+}
+#endif
+
+#ifndef HAVE_ARCH_DMA_SET_MASK
+static inline int dma_set_mask(struct device *dev, u64 mask)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	if (ops->set_dma_mask)
+		return ops->set_dma_mask(dev, mask);
+
+	if (!dev->dma_mask || !dma_supported(dev, mask))
+		return -EIO;
+	*dev->dma_mask = mask;
+	return 0;
+}
 #endif
 
 static inline u64 dma_get_mask(struct device *dev)
@@ -259,22 +619,6 @@ static inline void dmam_release_declared_memory(struct device *dev)
 }
 #endif /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */
 
-#ifndef CONFIG_HAVE_DMA_ATTRS
-struct dma_attrs;
-
-#define dma_map_single_attrs(dev, cpu_addr, size, dir, attrs) \
-	dma_map_single(dev, cpu_addr, size, dir)
-
-#define dma_unmap_single_attrs(dev, dma_addr, size, dir, attrs) \
-	dma_unmap_single(dev, dma_addr, size, dir)
-
-#define dma_map_sg_attrs(dev, sgl, nents, dir, attrs) \
-	dma_map_sg(dev, sgl, nents, dir)
-
-#define dma_unmap_sg_attrs(dev, sgl, nents, dir, attrs) \
-	dma_unmap_sg(dev, sgl, nents, dir)
-
-#else
 static inline void *dma_alloc_writecombine(struct device *dev, size_t size,
 					   dma_addr_t *dma_addr, gfp_t gfp)
 {
@@ -300,7 +644,6 @@ static inline int dma_mmap_writecombine(struct device *dev,
 	dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
 	return dma_mmap_attrs(dev, vma, cpu_addr, dma_addr, size, &attrs);
 }
-#endif /* CONFIG_HAVE_DMA_ATTRS */
 
 #ifdef CONFIG_NEED_DMA_MAP_STATE
 #define DEFINE_DMA_UNMAP_ADDR(ADDR_NAME)        dma_addr_t ADDR_NAME
-- 
1.9.1


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.ports.sparc,gmane.linux.kernel.iommu
Subject: Re: [PATCH 09/16] parisc: convert to dma_map_ops
Date: Mon, 9 Nov 2015 20:32:24 +0100
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Approved: news@gmane.org
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To: Christoph Hellwig <hch@lst.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Haavard Skinnemoen <hskinnemoen@gmail.com>,
	Hans-Christian Egtvedt <egtvedt@samfundet.no>,
	Steven Miao <realmz6@gmail.com>,
	Ley Foon Tan <lftan@altera.com>,
	David Howells <dhowells@redhat.com>,
	Koichi Yasutake <yasutake.koichi@jp.panasonic.com>,
	Chris Metcalf <cmetcalf@ezchip.com>,
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On 09.11.2015 19:17, Christoph Hellwig wrote:
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Nice cleanup/consolidation patches!

I pulled your branch, built the 32- and 64bit parisc kernels
and successfully booted them on 3 different PA-RISC machines: 
HP 715/64, C3000 and C8000
Everything OK.

Tested-by: Helge Deller <deller@gmx.de>
Acked-by: Helge Deller <deller@gmx.de>

Thanks!
Helge

> ---
>  arch/parisc/Kconfig                   |   2 +
>  arch/parisc/include/asm/dma-mapping.h | 189 ++--------------------------------
>  arch/parisc/kernel/drivers.c          |   2 +-
>  arch/parisc/kernel/pci-dma.c          |  92 ++++++++++-------
>  drivers/parisc/ccio-dma.c             |  57 +++++-----
>  drivers/parisc/sba_iommu.c            |  52 +++++-----
>  6 files changed, 124 insertions(+), 270 deletions(-)
> 
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index c365469..bdabfcd 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -29,6 +29,8 @@ config PARISC
>  	select TTY # Needed for pdc_cons.c
>  	select HAVE_DEBUG_STACKOVERFLOW
>  	select HAVE_ARCH_AUDITSYSCALL
> +	select ARCH_NO_COHERENT_DMA_MMAP
> +	select HAVE_DMA_ATTRS
>  
>  	help
>  	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
> diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
> index d8d60a5..4de5186 100644
> --- a/arch/parisc/include/asm/dma-mapping.h
> +++ b/arch/parisc/include/asm/dma-mapping.h
> @@ -1,30 +1,11 @@
>  #ifndef _PARISC_DMA_MAPPING_H
>  #define _PARISC_DMA_MAPPING_H
>  
> -#include <linux/mm.h>
> -#include <linux/scatterlist.h>
>  #include <asm/cacheflush.h>
>  
> -/* See Documentation/DMA-API-HOWTO.txt */
> -struct hppa_dma_ops {
> -	int  (*dma_supported)(struct device *dev, u64 mask);
> -	void *(*alloc_consistent)(struct device *dev, size_t size, dma_addr_t *iova, gfp_t flag);
> -	void *(*alloc_noncoherent)(struct device *dev, size_t size, dma_addr_t *iova, gfp_t flag);
> -	void (*free_consistent)(struct device *dev, size_t size, void *vaddr, dma_addr_t iova);
> -	dma_addr_t (*map_single)(struct device *dev, void *addr, size_t size, enum dma_data_direction direction);
> -	void (*unmap_single)(struct device *dev, dma_addr_t iova, size_t size, enum dma_data_direction direction);
> -	int  (*map_sg)(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction direction);
> -	void (*unmap_sg)(struct device *dev, struct scatterlist *sg, int nhwents, enum dma_data_direction direction);
> -	void (*dma_sync_single_for_cpu)(struct device *dev, dma_addr_t iova, unsigned long offset, size_t size, enum dma_data_direction direction);
> -	void (*dma_sync_single_for_device)(struct device *dev, dma_addr_t iova, unsigned long offset, size_t size, enum dma_data_direction direction);
> -	void (*dma_sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
> -	void (*dma_sync_sg_for_device)(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction);
> -};
> -
>  /*
> -** We could live without the hppa_dma_ops indirection if we didn't want
> -** to support 4 different coherent dma models with one binary (they will
> -** someday be loadable modules):
> +** We need to support 4 different coherent dma models with one binary:
> +**
>  **     I/O MMU        consistent method           dma_sync behavior
>  **  =============   ======================       =======================
>  **  a) PA-7x00LC    uncachable host memory          flush/purge
> @@ -40,158 +21,22 @@ struct hppa_dma_ops {
>  */
>  
>  #ifdef CONFIG_PA11
> -extern struct hppa_dma_ops pcxl_dma_ops;
> -extern struct hppa_dma_ops pcx_dma_ops;
> +extern struct dma_map_ops pcxl_dma_ops;
> +extern struct dma_map_ops pcx_dma_ops;
>  #endif
>  
> -extern struct hppa_dma_ops *hppa_dma_ops;
> -
> -#define dma_alloc_attrs(d, s, h, f, a) dma_alloc_coherent(d, s, h, f)
> -#define dma_free_attrs(d, s, h, f, a) dma_free_coherent(d, s, h, f)
> -
> -static inline void *
> -dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
> -		   gfp_t flag)
> -{
> -	return hppa_dma_ops->alloc_consistent(dev, size, dma_handle, flag);
> -}
> -
> -static inline void *
> -dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
> -		      gfp_t flag)
> -{
> -	return hppa_dma_ops->alloc_noncoherent(dev, size, dma_handle, flag);
> -}
> -
> -static inline void
> -dma_free_coherent(struct device *dev, size_t size, 
> -		    void *vaddr, dma_addr_t dma_handle)
> -{
> -	hppa_dma_ops->free_consistent(dev, size, vaddr, dma_handle);
> -}
> -
> -static inline void
> -dma_free_noncoherent(struct device *dev, size_t size, 
> -		    void *vaddr, dma_addr_t dma_handle)
> -{
> -	hppa_dma_ops->free_consistent(dev, size, vaddr, dma_handle);
> -}
> -
> -static inline dma_addr_t
> -dma_map_single(struct device *dev, void *ptr, size_t size,
> -	       enum dma_data_direction direction)
> -{
> -	return hppa_dma_ops->map_single(dev, ptr, size, direction);
> -}
> -
> -static inline void
> -dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
> -		 enum dma_data_direction direction)
> -{
> -	hppa_dma_ops->unmap_single(dev, dma_addr, size, direction);
> -}
> -
> -static inline int
> -dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
> -	   enum dma_data_direction direction)
> -{
> -	return hppa_dma_ops->map_sg(dev, sg, nents, direction);
> -}
> -
> -static inline void
> -dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
> -	     enum dma_data_direction direction)
> -{
> -	hppa_dma_ops->unmap_sg(dev, sg, nhwentries, direction);
> -}
> -
> -static inline dma_addr_t
> -dma_map_page(struct device *dev, struct page *page, unsigned long offset,
> -	     size_t size, enum dma_data_direction direction)
> -{
> -	return dma_map_single(dev, (page_address(page) + (offset)), size, direction);
> -}
> -
> -static inline void
> -dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
> -	       enum dma_data_direction direction)
> -{
> -	dma_unmap_single(dev, dma_address, size, direction);
> -}
> -
> -
> -static inline void
> -dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
> -		enum dma_data_direction direction)
> -{
> -	if(hppa_dma_ops->dma_sync_single_for_cpu)
> -		hppa_dma_ops->dma_sync_single_for_cpu(dev, dma_handle, 0, size, direction);
> -}
> -
> -static inline void
> -dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size,
> -		enum dma_data_direction direction)
> -{
> -	if(hppa_dma_ops->dma_sync_single_for_device)
> -		hppa_dma_ops->dma_sync_single_for_device(dev, dma_handle, 0, size, direction);
> -}
> -
> -static inline void
> -dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
> -		      unsigned long offset, size_t size,
> -		      enum dma_data_direction direction)
> -{
> -	if(hppa_dma_ops->dma_sync_single_for_cpu)
> -		hppa_dma_ops->dma_sync_single_for_cpu(dev, dma_handle, offset, size, direction);
> -}
> +extern struct dma_map_ops *hppa_dma_ops;
>  
> -static inline void
> -dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
> -		      unsigned long offset, size_t size,
> -		      enum dma_data_direction direction)
> +static inline struct dma_map_ops *get_dma_ops(struct device *dev)
>  {
> -	if(hppa_dma_ops->dma_sync_single_for_device)
> -		hppa_dma_ops->dma_sync_single_for_device(dev, dma_handle, offset, size, direction);
> -}
> -
> -static inline void
> -dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
> -		 enum dma_data_direction direction)
> -{
> -	if(hppa_dma_ops->dma_sync_sg_for_cpu)
> -		hppa_dma_ops->dma_sync_sg_for_cpu(dev, sg, nelems, direction);
> -}
> -
> -static inline void
> -dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
> -		 enum dma_data_direction direction)
> -{
> -	if(hppa_dma_ops->dma_sync_sg_for_device)
> -		hppa_dma_ops->dma_sync_sg_for_device(dev, sg, nelems, direction);
> -}
> -
> -static inline int
> -dma_supported(struct device *dev, u64 mask)
> -{
> -	return hppa_dma_ops->dma_supported(dev, mask);
> -}
> -
> -static inline int
> -dma_set_mask(struct device *dev, u64 mask)
> -{
> -	if(!dev->dma_mask || !dma_supported(dev, mask))
> -		return -EIO;
> -
> -	*dev->dma_mask = mask;
> -
> -	return 0;
> +	return hppa_dma_ops;
>  }
>  
>  static inline void
>  dma_cache_sync(struct device *dev, void *vaddr, size_t size,
>  	       enum dma_data_direction direction)
>  {
> -	if(hppa_dma_ops->dma_sync_single_for_cpu)
> +	if (hppa_dma_ops->sync_single_for_cpu)
>  		flush_kernel_dcache_range((unsigned long)vaddr, size);
>  }
>  
> @@ -238,22 +83,6 @@ struct parisc_device;
>  void * sba_get_iommu(struct parisc_device *dev);
>  #endif
>  
> -/* At the moment, we panic on error for IOMMU resource exaustion */
> -#define dma_mapping_error(dev, x)	0
> -
> -/* This API cannot be supported on PA-RISC */
> -static inline int dma_mmap_coherent(struct device *dev,
> -				    struct vm_area_struct *vma, void *cpu_addr,
> -				    dma_addr_t dma_addr, size_t size)
> -{
> -	return -EINVAL;
> -}
> -
> -static inline int dma_get_sgtable(struct device *dev, struct sg_table *sgt,
> -				  void *cpu_addr, dma_addr_t dma_addr,
> -				  size_t size)
> -{
> -	return -EINVAL;
> -}
> +#include <asm-generic/dma-mapping-common.h>
>  
>  #endif
> diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
> index dba508f..f815066 100644
> --- a/arch/parisc/kernel/drivers.c
> +++ b/arch/parisc/kernel/drivers.c
> @@ -40,7 +40,7 @@
>  #include <asm/parisc-device.h>
>  
>  /* See comments in include/asm-parisc/pci.h */
> -struct hppa_dma_ops *hppa_dma_ops __read_mostly;
> +struct dma_map_ops *hppa_dma_ops __read_mostly;
>  EXPORT_SYMBOL(hppa_dma_ops);
>  
>  static struct device root = {
> diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
> index b9402c9..a27e492 100644
> --- a/arch/parisc/kernel/pci-dma.c
> +++ b/arch/parisc/kernel/pci-dma.c
> @@ -413,7 +413,8 @@ pcxl_dma_init(void)
>  
>  __initcall(pcxl_dma_init);
>  
> -static void * pa11_dma_alloc_consistent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag)
> +static void *pa11_dma_alloc(struct device *dev, size_t size,
> +		dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
>  {
>  	unsigned long vaddr;
>  	unsigned long paddr;
> @@ -439,7 +440,8 @@ static void * pa11_dma_alloc_consistent (struct device *dev, size_t size, dma_ad
>  	return (void *)vaddr;
>  }
>  
> -static void pa11_dma_free_consistent (struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle)
> +static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
> +		dma_addr_t dma_handle, struct dma_attrs *attrs)
>  {
>  	int order;
>  
> @@ -450,15 +452,20 @@ static void pa11_dma_free_consistent (struct device *dev, size_t size, void *vad
>  	free_pages((unsigned long)__va(dma_handle), order);
>  }
>  
> -static dma_addr_t pa11_dma_map_single(struct device *dev, void *addr, size_t size, enum dma_data_direction direction)
> +static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
> +		unsigned long offset, size_t size,
> +		enum dma_data_direction direction, struct dma_attrs *attrs)
>  {
> +	void *addr = page_address(page) + offset;
>  	BUG_ON(direction == DMA_NONE);
>  
>  	flush_kernel_dcache_range((unsigned long) addr, size);
>  	return virt_to_phys(addr);
>  }
>  
> -static void pa11_dma_unmap_single(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction direction)
> +static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
> +		size_t size, enum dma_data_direction direction,
> +		struct dma_attrs *attrs)
>  {
>  	BUG_ON(direction == DMA_NONE);
>  
> @@ -475,7 +482,9 @@ static void pa11_dma_unmap_single(struct device *dev, dma_addr_t dma_handle, siz
>  	return;
>  }
>  
> -static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
> +static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
> +		int nents, enum dma_data_direction direction,
> +		struct dma_attrs *attrs)
>  {
>  	int i;
>  	struct scatterlist *sg;
> @@ -492,7 +501,9 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int n
>  	return nents;
>  }
>  
> -static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
> +static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
> +		int nents, enum dma_data_direction direction,
> +		struct dma_attrs *attrs)
>  {
>  	int i;
>  	struct scatterlist *sg;
> @@ -509,18 +520,24 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, in
>  	return;
>  }
>  
> -static void pa11_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
> +static void pa11_dma_sync_single_for_cpu(struct device *dev,
> +		dma_addr_t dma_handle, size_t size,
> +		enum dma_data_direction direction)
>  {
>  	BUG_ON(direction == DMA_NONE);
>  
> -	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
> +	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
> +			size);
>  }
>  
> -static void pa11_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, unsigned long offset, size_t size, enum dma_data_direction direction)
> +static void pa11_dma_sync_single_for_device(struct device *dev,
> +		dma_addr_t dma_handle, size_t size,
> +		enum dma_data_direction direction)
>  {
>  	BUG_ON(direction == DMA_NONE);
>  
> -	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle) + offset, size);
> +	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
> +			size);
>  }
>  
>  static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
> @@ -545,32 +562,28 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
>  		flush_kernel_vmap_range(sg_virt(sg), sg->length);
>  }
>  
> -struct hppa_dma_ops pcxl_dma_ops = {
> +struct dma_map_ops pcxl_dma_ops = {
>  	.dma_supported =	pa11_dma_supported,
> -	.alloc_consistent =	pa11_dma_alloc_consistent,
> -	.alloc_noncoherent =	pa11_dma_alloc_consistent,
> -	.free_consistent =	pa11_dma_free_consistent,
> -	.map_single =		pa11_dma_map_single,
> -	.unmap_single =		pa11_dma_unmap_single,
> +	.alloc =		pa11_dma_alloc,
> +	.free =			pa11_dma_free,
> +	.map_page =		pa11_dma_map_page,
> +	.unmap_page =		pa11_dma_unmap_page,
>  	.map_sg =		pa11_dma_map_sg,
>  	.unmap_sg =		pa11_dma_unmap_sg,
> -	.dma_sync_single_for_cpu = pa11_dma_sync_single_for_cpu,
> -	.dma_sync_single_for_device = pa11_dma_sync_single_for_device,
> -	.dma_sync_sg_for_cpu = pa11_dma_sync_sg_for_cpu,
> -	.dma_sync_sg_for_device = pa11_dma_sync_sg_for_device,
> +	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
> +	.sync_single_for_device = pa11_dma_sync_single_for_device,
> +	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
> +	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
>  };
>  
> -static void *fail_alloc_consistent(struct device *dev, size_t size,
> -				   dma_addr_t *dma_handle, gfp_t flag)
> -{
> -	return NULL;
> -}
> -
> -static void *pa11_dma_alloc_noncoherent(struct device *dev, size_t size,
> -					  dma_addr_t *dma_handle, gfp_t flag)
> +static void *pcx_dma_alloc(struct device *dev, size_t size,
> +		dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
>  {
>  	void *addr;
>  
> +	if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
> +		return NULL;
> +
>  	addr = (void *)__get_free_pages(flag, get_order(size));
>  	if (addr)
>  		*dma_handle = (dma_addr_t)virt_to_phys(addr);
> @@ -578,24 +591,23 @@ static void *pa11_dma_alloc_noncoherent(struct device *dev, size_t size,
>  	return addr;
>  }
>  
> -static void pa11_dma_free_noncoherent(struct device *dev, size_t size,
> -					void *vaddr, dma_addr_t iova)
> +static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
> +		dma_addr_t iova, struct dma_attrs *attrs)
>  {
>  	free_pages((unsigned long)vaddr, get_order(size));
>  	return;
>  }
>  
> -struct hppa_dma_ops pcx_dma_ops = {
> +struct dma_map_ops pcx_dma_ops = {
>  	.dma_supported =	pa11_dma_supported,
> -	.alloc_consistent =	fail_alloc_consistent,
> -	.alloc_noncoherent =	pa11_dma_alloc_noncoherent,
> -	.free_consistent =	pa11_dma_free_noncoherent,
> -	.map_single =		pa11_dma_map_single,
> -	.unmap_single =		pa11_dma_unmap_single,
> +	.alloc =		pcx_dma_alloc,
> +	.free =			pcx_dma_free,
> +	.map_page =		pa11_dma_map_page,
> +	.unmap_page =		pa11_dma_unmap_page,
>  	.map_sg =		pa11_dma_map_sg,
>  	.unmap_sg =		pa11_dma_unmap_sg,
> -	.dma_sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
> -	.dma_sync_single_for_device =	pa11_dma_sync_single_for_device,
> -	.dma_sync_sg_for_cpu =		pa11_dma_sync_sg_for_cpu,
> -	.dma_sync_sg_for_device =	pa11_dma_sync_sg_for_device,
> +	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
> +	.sync_single_for_device = pa11_dma_sync_single_for_device,
> +	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
> +	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
>  };
> diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
> index 957b421..a4c7153 100644
> --- a/drivers/parisc/ccio-dma.c
> +++ b/drivers/parisc/ccio-dma.c
> @@ -788,18 +788,27 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
>  	return CCIO_IOVA(iovp, offset);
>  }
>  
> +
> +static dma_addr_t 
> +ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
> +		size_t size, enum dma_data_direction direction,
> +		struct dma_attrs *attrs)
> +{
> +	return ccio_map_single(dev, page_address(page) + offset, size,
> +			direction);
> +}
> +
> +
>  /**
> - * ccio_unmap_single - Unmap an address range from the IOMMU.
> + * ccio_unmap_page - Unmap an address range from the IOMMU.
>   * @dev: The PCI device.
>   * @addr: The start address of the DMA region.
>   * @size: The length of the DMA region.
>   * @direction: The direction of the DMA transaction (to/from device).
> - *
> - * This function implements the pci_unmap_single function.
>   */
>  static void 
> -ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size, 
> -		  enum dma_data_direction direction)
> +ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size, 
> +		enum dma_data_direction direction, struct dma_attrs *attrs)
>  {
>  	struct ioc *ioc;
>  	unsigned long flags; 
> @@ -828,7 +837,7 @@ ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
>  }
>  
>  /**
> - * ccio_alloc_consistent - Allocate a consistent DMA mapping.
> + * ccio_alloc - Allocate a consistent DMA mapping.
>   * @dev: The PCI device.
>   * @size: The length of the DMA region.
>   * @dma_handle: The DMA address handed back to the device (not the cpu).
> @@ -836,7 +845,8 @@ ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
>   * This function implements the pci_alloc_consistent function.
>   */
>  static void * 
> -ccio_alloc_consistent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag)
> +ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
> +		struct dma_attrs *attrs)
>  {
>        void *ret;
>  #if 0
> @@ -860,7 +870,7 @@ ccio_alloc_consistent(struct device *dev, size_t size, dma_addr_t *dma_handle, g
>  }
>  
>  /**
> - * ccio_free_consistent - Free a consistent DMA mapping.
> + * ccio_free - Free a consistent DMA mapping.
>   * @dev: The PCI device.
>   * @size: The length of the DMA region.
>   * @cpu_addr: The cpu address returned from the ccio_alloc_consistent.
> @@ -869,10 +879,10 @@ ccio_alloc_consistent(struct device *dev, size_t size, dma_addr_t *dma_handle, g
>   * This function implements the pci_free_consistent function.
>   */
>  static void 
> -ccio_free_consistent(struct device *dev, size_t size, void *cpu_addr, 
> -		     dma_addr_t dma_handle)
> +ccio_free(struct device *dev, size_t size, void *cpu_addr,
> +		dma_addr_t dma_handle, struct dma_attrs *attrs)
>  {
> -	ccio_unmap_single(dev, dma_handle, size, 0);
> +	ccio_unmap_page(dev, dma_handle, size, 0, NULL);
>  	free_pages((unsigned long)cpu_addr, get_order(size));
>  }
>  
> @@ -899,7 +909,7 @@ ccio_free_consistent(struct device *dev, size_t size, void *cpu_addr,
>   */
>  static int
>  ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents, 
> -	    enum dma_data_direction direction)
> +	    enum dma_data_direction direction, struct dma_attrs *attrs)
>  {
>  	struct ioc *ioc;
>  	int coalesced, filled = 0;
> @@ -976,7 +986,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
>   */
>  static void 
>  ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, 
> -	      enum dma_data_direction direction)
> +	      enum dma_data_direction direction, struct dma_attrs *attrs)
>  {
>  	struct ioc *ioc;
>  
> @@ -995,27 +1005,22 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
>  #ifdef CCIO_COLLECT_STATS
>  		ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
>  #endif
> -		ccio_unmap_single(dev, sg_dma_address(sglist),
> -				  sg_dma_len(sglist), direction);
> +		ccio_unmap_page(dev, sg_dma_address(sglist),
> +				  sg_dma_len(sglist), direction, NULL);
>  		++sglist;
>  	}
>  
>  	DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
>  }
>  
> -static struct hppa_dma_ops ccio_ops = {
> +static struct dma_map_ops ccio_ops = {
>  	.dma_supported =	ccio_dma_supported,
> -	.alloc_consistent =	ccio_alloc_consistent,
> -	.alloc_noncoherent =	ccio_alloc_consistent,
> -	.free_consistent =	ccio_free_consistent,
> -	.map_single =		ccio_map_single,
> -	.unmap_single =		ccio_unmap_single,
> +	.alloc =		ccio_alloc,
> +	.free =			ccio_free,
> +	.map_page =		ccio_map_page,
> +	.unmap_page =		ccio_unmap_page,
>  	.map_sg = 		ccio_map_sg,
>  	.unmap_sg = 		ccio_unmap_sg,
> -	.dma_sync_single_for_cpu =	NULL,	/* NOP for U2/Uturn */
> -	.dma_sync_single_for_device =	NULL,	/* NOP for U2/Uturn */
> -	.dma_sync_sg_for_cpu =		NULL,	/* ditto */
> -	.dma_sync_sg_for_device =		NULL,	/* ditto */
>  };
>  
>  #ifdef CONFIG_PROC_FS
> @@ -1064,7 +1069,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
>  			   ioc->msingle_calls, ioc->msingle_pages,
>  			   (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
>  
> -		/* KLUGE - unmap_sg calls unmap_single for each mapped page */
> +		/* KLUGE - unmap_sg calls unmap_page for each mapped page */
>  		min = ioc->usingle_calls - ioc->usg_calls;
>  		max = ioc->usingle_pages - ioc->usg_pages;
>  		seq_printf(m, "pci_unmap_single: %8ld calls  %8ld pages (avg %d/1000)\n",
> diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
> index 225049b..24ec9b8 100644
> --- a/drivers/parisc/sba_iommu.c
> +++ b/drivers/parisc/sba_iommu.c
> @@ -780,8 +780,18 @@ sba_map_single(struct device *dev, void *addr, size_t size,
>  }
>  
>  
> +static dma_addr_t 
> +sba_map_page(struct device *dev, struct page *page, unsigned long offset,
> +		size_t size, enum dma_data_direction direction,
> +		struct dma_attrs *attrs)
> +{
> +	return sba_map_single(dev, page_address(page) + offset, size,
> +			direction);
> +}
> +
> +
>  /**
> - * sba_unmap_single - unmap one IOVA and free resources
> + * sba_unmap_page - unmap one IOVA and free resources
>   * @dev: instance of PCI owned by the driver that's asking.
>   * @iova:  IOVA of driver buffer previously mapped.
>   * @size:  number of bytes mapped in driver buffer.
> @@ -790,8 +800,8 @@ sba_map_single(struct device *dev, void *addr, size_t size,
>   * See Documentation/DMA-API-HOWTO.txt
>   */
>  static void
> -sba_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
> -		 enum dma_data_direction direction)
> +sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
> +		enum dma_data_direction direction, struct dma_attrs *attrs)
>  {
>  	struct ioc *ioc;
>  #if DELAYED_RESOURCE_CNT > 0
> @@ -858,15 +868,15 @@ sba_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
>  
>  
>  /**
> - * sba_alloc_consistent - allocate/map shared mem for DMA
> + * sba_alloc - allocate/map shared mem for DMA
>   * @hwdev: instance of PCI owned by the driver that's asking.
>   * @size:  number of bytes mapped in driver buffer.
>   * @dma_handle:  IOVA of new buffer.
>   *
>   * See Documentation/DMA-API-HOWTO.txt
>   */
> -static void *sba_alloc_consistent(struct device *hwdev, size_t size,
> -					dma_addr_t *dma_handle, gfp_t gfp)
> +static void *sba_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle,
> +		gfp_t gfp, struct dma_attrs *attrs)
>  {
>  	void *ret;
>  
> @@ -888,7 +898,7 @@ static void *sba_alloc_consistent(struct device *hwdev, size_t size,
>  
>  
>  /**
> - * sba_free_consistent - free/unmap shared mem for DMA
> + * sba_free - free/unmap shared mem for DMA
>   * @hwdev: instance of PCI owned by the driver that's asking.
>   * @size:  number of bytes mapped in driver buffer.
>   * @vaddr:  virtual address IOVA of "consistent" buffer.
> @@ -897,10 +907,10 @@ static void *sba_alloc_consistent(struct device *hwdev, size_t size,
>   * See Documentation/DMA-API-HOWTO.txt
>   */
>  static void
> -sba_free_consistent(struct device *hwdev, size_t size, void *vaddr,
> -		    dma_addr_t dma_handle)
> +sba_free(struct device *hwdev, size_t size, void *vaddr,
> +		    dma_addr_t dma_handle, struct dma_attrs *attrs)
>  {
> -	sba_unmap_single(hwdev, dma_handle, size, 0);
> +	sba_unmap_page(hwdev, dma_handle, size, 0, NULL);
>  	free_pages((unsigned long) vaddr, get_order(size));
>  }
>  
> @@ -933,7 +943,7 @@ int dump_run_sg = 0;
>   */
>  static int
>  sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
> -	   enum dma_data_direction direction)
> +	   enum dma_data_direction direction, struct dma_attrs *attrs)
>  {
>  	struct ioc *ioc;
>  	int coalesced, filled = 0;
> @@ -1016,7 +1026,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
>   */
>  static void 
>  sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
> -	     enum dma_data_direction direction)
> +	     enum dma_data_direction direction, struct dma_attrs *attrs)
>  {
>  	struct ioc *ioc;
>  #ifdef ASSERT_PDIR_SANITY
> @@ -1040,7 +1050,8 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
>  
>  	while (sg_dma_len(sglist) && nents--) {
>  
> -		sba_unmap_single(dev, sg_dma_address(sglist), sg_dma_len(sglist), direction);
> +		sba_unmap_page(dev, sg_dma_address(sglist), sg_dma_len(sglist),
> +				direction, NULL);
>  #ifdef SBA_COLLECT_STATS
>  		ioc->usg_pages += ((sg_dma_address(sglist) & ~IOVP_MASK) + sg_dma_len(sglist) + IOVP_SIZE - 1) >> PAGE_SHIFT;
>  		ioc->usingle_calls--;	/* kluge since call is unmap_sg() */
> @@ -1058,19 +1069,14 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
>  
>  }
>  
> -static struct hppa_dma_ops sba_ops = {
> +static struct dma_map_ops sba_ops = {
>  	.dma_supported =	sba_dma_supported,
> -	.alloc_consistent =	sba_alloc_consistent,
> -	.alloc_noncoherent =	sba_alloc_consistent,
> -	.free_consistent =	sba_free_consistent,
> -	.map_single =		sba_map_single,
> -	.unmap_single =		sba_unmap_single,
> +	.alloc =		sba_alloc,
> +	.free =			sba_free,
> +	.map_page =		sba_map_page,
> +	.unmap_page =		sba_unmap_page,
>  	.map_sg =		sba_map_sg,
>  	.unmap_sg =		sba_unmap_sg,
> -	.dma_sync_single_for_cpu =	NULL,
> -	.dma_sync_single_for_device =	NULL,
> -	.dma_sync_sg_for_cpu =		NULL,
> -	.dma_sync_sg_for_device =	NULL,
>  };
>  
>  
> 

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	Haavard Skinnemoen <hskinnemoen@gmail.com>,
	Hans-Christian Egtvedt <egtvedt@samfundet.no>,
	Steven Miao <realmz6@gmail.com>,
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On Mon, Nov 09, 2015 at 07:17:11PM +0100, Christoph Hellwig wrote:
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Looks good for CRIS,

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com

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Subject: [PATCH, RFC] parisc: Add huge page support for parisc
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This is an initial working version of getting huge pages support on
parisc.

Can be pulled from my "hugetlb_hppa3" branch of my git tree as well:
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/log/?h=hugetlb_hppa3

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index c365469..2278497 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -108,6 +108,9 @@ config PGTABLE_LEVELS
 	default 3 if 64BIT && PARISC_PAGE_SIZE_4KB
 	default 2
 
+config SYS_SUPPORTS_HUGETLBFS
+	def_bool y if 64BIT
+
 source "init/Kconfig"
 
 source "kernel/Kconfig.freezer"
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
new file mode 100644
index 0000000..7d56a9c
--- /dev/null
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -0,0 +1,85 @@
+#ifndef _ASM_PARISC64_HUGETLB_H
+#define _ASM_PARISC64_HUGETLB_H
+
+#include <asm/page.h>
+#include <asm-generic/hugetlb.h>
+
+
+void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		     pte_t *ptep, pte_t pte);
+
+pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
+			      pte_t *ptep);
+
+static inline int is_hugepage_only_range(struct mm_struct *mm,
+					 unsigned long addr,
+					 unsigned long len) {
+	return 0;
+}
+
+/*
+ * If the arch doesn't supply something else, assume that hugepage
+ * size aligned regions are ok without further preparation.
+ */
+static inline int prepare_hugepage_range(struct file *file,
+			unsigned long addr, unsigned long len)
+{
+	if (len & ~HPAGE_MASK)
+		return -EINVAL;
+	if (addr & ~HPAGE_MASK)
+		return -EINVAL;
+	return 0;
+}
+
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
+					  unsigned long addr, unsigned long end,
+					  unsigned long floor,
+					  unsigned long ceiling)
+{
+	free_pgd_range(tlb, addr, end, floor, ceiling);
+}
+
+static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
+					 unsigned long addr, pte_t *ptep)
+{
+}
+
+static inline int huge_pte_none(pte_t pte)
+{
+	return pte_none(pte);
+}
+
+static inline pte_t huge_pte_wrprotect(pte_t pte)
+{
+	return pte_wrprotect(pte);
+}
+
+static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
+					   unsigned long addr, pte_t *ptep)
+{
+	pte_t old_pte = *ptep;
+	set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
+}
+
+static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+					     unsigned long addr, pte_t *ptep,
+					     pte_t pte, int dirty)
+{
+	int changed = !pte_same(*ptep, pte);
+	if (changed) {
+		set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
+		flush_tlb_page(vma, addr);
+	}
+	return changed;
+}
+
+static inline pte_t huge_ptep_get(pte_t *ptep)
+{
+	return *ptep;
+}
+
+static inline void arch_clear_hugepage_flags(struct page *page)
+{
+}
+
+#endif /* _ASM_PARISC64_HUGETLB_H */
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index 60d5d17..ca2dff4 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -145,10 +145,13 @@ extern int npmem_ranges;
 #endif /* CONFIG_DISCONTIGMEM */
 
 #ifdef CONFIG_HUGETLB_PAGE
-#define HPAGE_SHIFT		22	/* 4MB (is this fixed?) */
+#define HPAGE_SHIFT		PMD_SHIFT /* fixed for transparent huge pages */
 #define HPAGE_SIZE      	((1UL) << HPAGE_SHIFT)
 #define HPAGE_MASK		(~(HPAGE_SIZE - 1))
 #define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)
+
+#define REAL_HPAGE_SHIFT	20 /* 20=1MB, 22=4MB */
+#define _HUGE_PAGE_SIZE_ENCODING_DEFAULT _PAGE_SIZE_ENCODING_1M
 #endif
 
 #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index f93c4a4..148a243 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -167,7 +167,7 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 #define _PAGE_NO_CACHE_BIT 24   /* (0x080) Uncached Page (U bit) */
 #define _PAGE_ACCESSED_BIT 23   /* (0x100) Software: Page Accessed */
 #define _PAGE_PRESENT_BIT  22   /* (0x200) Software: translation valid */
-/* bit 21 was formerly the FLUSH bit but is now unused */
+#define _PAGE_HPAGE_BIT    21   /* (0x400) Huge Page */
 #define _PAGE_USER_BIT     20   /* (0x800) Software: User accessible page */
 
 /* N.B. The bits are defined in terms of a 32 bit word above, so the */
@@ -194,6 +194,7 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 #define _PAGE_NO_CACHE (1 << xlate_pabit(_PAGE_NO_CACHE_BIT))
 #define _PAGE_ACCESSED (1 << xlate_pabit(_PAGE_ACCESSED_BIT))
 #define _PAGE_PRESENT  (1 << xlate_pabit(_PAGE_PRESENT_BIT))
+#define _PAGE_HUGE     (1 << xlate_pabit(_PAGE_HPAGE_BIT))
 #define _PAGE_USER     (1 << xlate_pabit(_PAGE_USER_BIT))
 
 #define _PAGE_TABLE	(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE |  _PAGE_DIRTY | _PAGE_ACCESSED)
@@ -217,7 +218,7 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 #define PxD_FLAG_VALID    (1 << xlate_pabit(_PxD_VALID_BIT))
 #define PxD_FLAG_MASK     (0xf)
 #define PxD_FLAG_SHIFT    (4)
-#define PxD_VALUE_SHIFT   (8) /* (PAGE_SHIFT-PxD_FLAG_SHIFT) */
+#define PxD_VALUE_SHIFT   (PFN_PTE_SHIFT-PxD_FLAG_SHIFT)
 
 #ifndef __ASSEMBLY__
 
@@ -363,6 +364,13 @@ static inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) |= _PAGE_WRITE; return
 static inline pte_t pte_mkspecial(pte_t pte)	{ return pte; }
 
 /*
+ * Huge pte definitions.
+ */
+#define pte_huge(pte)           (pte_val(pte) & _PAGE_HUGE)
+#define pte_mkhuge(pte)         (__pte(pte_val(pte) | _PAGE_HUGE))
+
+
+/*
  * Conversion functions: convert a page and protection to a page entry,
  * and a page entry and page directory to the page they refer to.
  */
@@ -410,8 +418,9 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 /* Find an entry in the second-level page table.. */
 
 #if CONFIG_PGTABLE_LEVELS == 3
+#define pmd_index(addr)         (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))
 #define pmd_offset(dir,address) \
-((pmd_t *) pgd_page_vaddr(*(dir)) + (((address)>>PMD_SHIFT) & (PTRS_PER_PMD-1)))
+((pmd_t *) pgd_page_vaddr(*(dir)) + pmd_index(address))
 #else
 #define pmd_offset(dir,addr) ((pmd_t *) dir)
 #endif
@@ -504,6 +513,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 #define _PAGE_SIZE_ENCODING_4M		5
 #define _PAGE_SIZE_ENCODING_16M		6
 #define _PAGE_SIZE_ENCODING_64M		7
+#define _PAGE_SIZE_ENCODING_MASK	0x0f
+#define PHYS_PAGE_SIZE_ENCODING(x)	((x) & _PAGE_SIZE_ENCODING_MASK)
 
 #if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
 # define _PAGE_SIZE_ENCODING_DEFAULT _PAGE_SIZE_ENCODING_4K
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..587005a 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -46,25 +46,15 @@
 #define MADV_DONTFORK	10		/* don't inherit across fork */
 #define MADV_DOFORK	11		/* do inherit across fork */
 
-/* The range 12-64 is reserved for page size specification. */
-#define MADV_4K_PAGES   12              /* Use 4K pages  */
-#define MADV_16K_PAGES  14              /* Use 16K pages */
-#define MADV_64K_PAGES  16              /* Use 64K pages */
-#define MADV_256K_PAGES 18              /* Use 256K pages */
-#define MADV_1M_PAGES   20              /* Use 1 Megabyte pages */
-#define MADV_4M_PAGES   22              /* Use 4 Megabyte pages */
-#define MADV_16M_PAGES  24              /* Use 16 Megabyte pages */
-#define MADV_64M_PAGES  26              /* Use 64 Megabyte pages */
+#define MADV_MERGEABLE   12		/* KSM may merge identical pages */
+#define MADV_UNMERGEABLE 13		/* KSM may not merge identical pages */
 
-#define MADV_MERGEABLE   65		/* KSM may merge identical pages */
-#define MADV_UNMERGEABLE 66		/* KSM may not merge identical pages */
+#define MADV_HUGEPAGE	14		/* Worth backing with hugepages */
+#define MADV_NOHUGEPAGE	15		/* Not worth backing with hugepages */
 
-#define MADV_HUGEPAGE	67		/* Worth backing with hugepages */
-#define MADV_NOHUGEPAGE	68		/* Not worth backing with hugepages */
-
-#define MADV_DONTDUMP   69		/* Explicity exclude from the core dump,
+#define MADV_DONTDUMP   16		/* Explicity exclude from the core dump,
 					   overrides the coredump filter bits */
-#define MADV_DODUMP	70		/* Clear the MADV_NODUMP flag */
+#define MADV_DODUMP	17		/* Clear the MADV_NODUMP flag */
 
 /* compatibility flags */
 #define MAP_FILE	0
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index c5ef408..f0e5157 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -504,19 +504,32 @@
 
 	/* bitshift difference between a PFN (based on kernel's PAGE_SIZE)
 	 * to a CPU TLB 4k PFN (4k => 12 bits to shift) */
-	#define PAGE_ADD_SHIFT  (PAGE_SHIFT-12)
+	#define PAGE_ADD_SHIFT		(PAGE_SHIFT-12)
+	#define PAGE_ADD_HUGE_SHIFT	(REAL_HPAGE_SHIFT-12)
 
 	/* Drop prot bits and convert to page addr for iitlbt and idtlbt */
-	.macro		convert_for_tlb_insert20 pte
+	.macro		convert_for_tlb_insert20 pte,tmp
+#ifdef CONFIG_HUGETLB_PAGE
+	copy		\pte,\tmp
+	extrd,u		\tmp,(63-ASM_PFN_PTE_SHIFT)+(63-58)+PAGE_ADD_SHIFT,\
+				64-PAGE_SHIFT-PAGE_ADD_SHIFT,\pte
+
+	depdi		_PAGE_SIZE_ENCODING_DEFAULT,63,\
+				(63-58)+PAGE_ADD_SHIFT,\pte
+	extrd,u,*=	\tmp,_PAGE_HPAGE_BIT+32,1,%r0
+	depdi		_HUGE_PAGE_SIZE_ENCODING_DEFAULT,63,\
+				(63-58)+PAGE_ADD_SHIFT,\pte
+#else /* Huge pages disabled */
 	extrd,u		\pte,(63-ASM_PFN_PTE_SHIFT)+(63-58)+PAGE_ADD_SHIFT,\
 				64-PAGE_SHIFT-PAGE_ADD_SHIFT,\pte
 	depdi		_PAGE_SIZE_ENCODING_DEFAULT,63,\
 				(63-58)+PAGE_ADD_SHIFT,\pte
+#endif
 	.endm
 
 	/* Convert the pte and prot to tlb insertion values.  How
 	 * this happens is quite subtle, read below */
-	.macro		make_insert_tlb	spc,pte,prot
+	.macro		make_insert_tlb	spc,pte,prot,tmp
 	space_to_prot   \spc \prot        /* create prot id from space */
 	/* The following is the real subtlety.  This is depositing
 	 * T <-> _PAGE_REFTRAP
@@ -553,7 +566,7 @@
 	depdi		1,12,1,\prot
 
 	/* Drop prot bits and convert to page addr for iitlbt and idtlbt */
-	convert_for_tlb_insert20 \pte
+	convert_for_tlb_insert20 \pte \tmp
 	.endm
 
 	/* Identical macro to make_insert_tlb above, except it
@@ -1147,7 +1160,7 @@ dtlb_miss_20w:
 	tlb_lock	spc,ptp,pte,t0,t1,dtlb_check_alias_20w
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t0
 	
 	idtlbt          pte,prot
 
@@ -1173,7 +1186,7 @@ nadtlb_miss_20w:
 	tlb_lock	spc,ptp,pte,t0,t1,nadtlb_check_alias_20w
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t0
 
 	idtlbt          pte,prot
 
@@ -1267,7 +1280,7 @@ dtlb_miss_20:
 	tlb_lock	spc,ptp,pte,t0,t1,dtlb_check_alias_20
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t0
 
 	f_extend	pte,t1
 
@@ -1295,7 +1308,7 @@ nadtlb_miss_20:
 	tlb_lock	spc,ptp,pte,t0,t1,nadtlb_check_alias_20
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t0
 
 	f_extend	pte,t1
 	
@@ -1404,7 +1417,7 @@ itlb_miss_20w:
 	tlb_lock	spc,ptp,pte,t0,t1,itlb_fault
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t0
 	
 	iitlbt          pte,prot
 
@@ -1428,7 +1441,7 @@ naitlb_miss_20w:
 	tlb_lock	spc,ptp,pte,t0,t1,naitlb_check_alias_20w
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t0
 
 	iitlbt          pte,prot
 
@@ -1514,7 +1527,7 @@ itlb_miss_20:
 	tlb_lock	spc,ptp,pte,t0,t1,itlb_fault
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t0
 
 	f_extend	pte,t1
 
@@ -1534,7 +1547,7 @@ naitlb_miss_20:
 	tlb_lock	spc,ptp,pte,t0,t1,naitlb_check_alias_20
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t0
 
 	f_extend	pte,t1
 
@@ -1566,7 +1579,7 @@ dbit_trap_20w:
 	tlb_lock	spc,ptp,pte,t0,t1,dbit_fault
 	update_dirty	ptp,pte,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t0
 		
 	idtlbt          pte,prot
 
@@ -1610,7 +1623,7 @@ dbit_trap_20:
 	tlb_lock	spc,ptp,pte,t0,t1,dbit_fault
 	update_dirty	ptp,pte,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t0
 
 	f_extend	pte,t1
 	
diff --git a/arch/parisc/mm/Makefile b/arch/parisc/mm/Makefile
index 758ceef..134393d 100644
--- a/arch/parisc/mm/Makefile
+++ b/arch/parisc/mm/Makefile
@@ -3,3 +3,4 @@
 #
 
 obj-y	 := init.o fault.o ioremap.o
+obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
diff --git a/arch/parisc/mm/hugetlbpage.c b/arch/parisc/mm/hugetlbpage.c
new file mode 100644
index 0000000..3e82f86
--- /dev/null
+++ b/arch/parisc/mm/hugetlbpage.c
@@ -0,0 +1,160 @@
+/*
+ * PARISC64 Huge TLB page support.
+ *
+ * Copyright (C) 2002, 2003, 2006 David S. Miller (davem@davemloft.net)
+ */
+
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/hugetlb.h>
+#include <linux/pagemap.h>
+#include <linux/sysctl.h>
+
+#include <asm/mman.h>
+#include <asm/pgalloc.h>
+#include <asm/tlb.h>
+#include <asm/tlbflush.h>
+#include <asm/cacheflush.h>
+#include <asm/mmu_context.h>
+
+
+unsigned long
+hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
+		unsigned long len, unsigned long pgoff, unsigned long flags)
+{
+	struct hstate *h = hstate_file(file);
+
+	if (len & ~huge_page_mask(h))
+		return -EINVAL;
+	if (len > TASK_SIZE)
+		return -ENOMEM;
+
+	if (flags & MAP_FIXED)
+		if (prepare_hugepage_range(file, addr, len))
+			return -EINVAL;
+
+	if (addr)
+		addr = ALIGN(addr, huge_page_size(h));
+
+	/* we need to make sure the colouring is OK */
+	return arch_get_unmapped_area(file, addr, len, pgoff, flags);
+}
+
+
+pte_t *huge_pte_alloc(struct mm_struct *mm,
+			unsigned long addr, unsigned long sz)
+{
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte = NULL;
+
+	/* We must align the address, because our caller will run
+	 * set_huge_pte_at() on whatever we return, which writes out
+	 * all of the sub-ptes for the hugepage range.  So we have
+	 * to give it the first such sub-pte.
+	 */
+	addr &= HPAGE_MASK;
+
+	pgd = pgd_offset(mm, addr);
+	pud = pud_alloc(mm, pgd, addr);
+	if (pud) {
+		pmd = pmd_alloc(mm, pud, addr);
+		if (pmd)
+			pte = pte_alloc_map(mm, NULL, pmd, addr);
+	}
+	return pte;
+}
+
+pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
+{
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte = NULL;
+
+	addr &= HPAGE_MASK;
+
+	pgd = pgd_offset(mm, addr);
+	if (!pgd_none(*pgd)) {
+		pud = pud_offset(pgd, addr);
+		if (!pud_none(*pud)) {
+			pmd = pmd_offset(pud, addr);
+			if (!pmd_none(*pmd))
+				pte = pte_offset_map(pmd, addr);
+		}
+	}
+	return pte;
+}
+
+/* Purge data and instruction TLB entries.  Must be called holding
+ * the pa_tlb_lock.  The TLB purge instructions are slow on SMP
+ * machines since the purge must be broadcast to all CPUs.
+ */
+static inline void purge_tlb_entries_huge(struct mm_struct *mm, unsigned long addr)
+{
+	// we use 2 physical huge pages to emulate Linux huge pages
+	BUILD_BUG_ON(REAL_HPAGE_SHIFT+1 != HPAGE_SHIFT);
+
+	mtsp(mm->context, 1);
+	addr &= HPAGE_MASK;
+	addr |= _HUGE_PAGE_SIZE_ENCODING_DEFAULT;
+	pdtlb(addr);
+	pdtlb(addr + (1UL << REAL_HPAGE_SHIFT));
+	if (unlikely(split_tlb)) {
+		pitlb(addr);
+		pitlb(addr + (1UL << REAL_HPAGE_SHIFT));
+	}
+}
+
+void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		     pte_t *ptep, pte_t entry)
+{
+	unsigned long flags;
+	unsigned long addr_start;
+	int i;
+
+#if 0 // HELGE
+	if (!pte_present(*ptep) && pte_present(entry))
+		mm->context.huge_pte_count++;
+#endif
+
+	addr &= HPAGE_MASK;
+	addr_start = addr;
+
+	spin_lock_irqsave(&pa_tlb_lock, flags);
+
+	for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
+                *ptep = entry; // set_pte_at(mm, addr, ptep, entry);
+		ptep++;
+		purge_tlb_entries(mm, addr); // non-huge
+		addr += PAGE_SIZE;
+		pte_val(entry) += PAGE_SIZE;
+	}
+
+	purge_tlb_entries_huge(mm, addr_start);
+
+	spin_unlock_irqrestore(&pa_tlb_lock, flags);
+}
+
+
+pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
+			      pte_t *ptep)
+{
+	pte_t entry;
+
+	entry = *ptep;
+	set_huge_pte_at(mm, addr, ptep, __pte(0));
+
+	return entry;
+}
+
+int pmd_huge(pmd_t pmd)
+{
+	return 0;
+}
+
+int pud_huge(pud_t pud)
+{
+	return 0;
+}
--
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The following patch series adds huge page (large page) support to parisc.

Both 32 and 64bit kernels are supported as long as kernel is being compiled for
PA8X00 / PA2.0 CPUs.

Helge Deller (9):
  parisc: Fix wrong comment regarding first pmd entry flags
  parisc: Drop definition of start_thread_som for HP-UX SOM binaries
  parisc: Fix asm/mman.h regarding MAP_HUGETLB and MADV_XX flags
  parisc: Add defines for Huge page support
  parisc: Initialize the fault vector earlier in the boot process.
  parisc: Increase initial kernel mapping to 32MB on 64bit kernel
  parisc: Use long branch to do_syscall_trace_exit
  parisc: Add Huge Page and HUGETLBFS support
  parisc: Map kernel text and data on huge pages

 arch/parisc/Kconfig                 |   3 +
 arch/parisc/include/asm/hugetlb.h   |  85 +++++++++++++++++++
 arch/parisc/include/asm/page.h      |  13 ++-
 arch/parisc/include/asm/pgalloc.h   |   2 +-
 arch/parisc/include/asm/pgtable.h   |  26 +++++-
 arch/parisc/include/asm/processor.h |  27 ------
 arch/parisc/include/uapi/asm/mman.h |  29 +++----
 arch/parisc/kernel/asm-offsets.c    |   8 ++
 arch/parisc/kernel/entry.S          |  56 ++++++++-----
 arch/parisc/kernel/head.S           |   4 +-
 arch/parisc/kernel/setup.c          |  14 +++-
 arch/parisc/kernel/syscall.S        |   4 +-
 arch/parisc/kernel/traps.c          |  35 ++++----
 arch/parisc/kernel/vmlinux.lds.S    |   9 +-
 arch/parisc/mm/Makefile             |   1 +
 arch/parisc/mm/hugetlbpage.c        | 162 ++++++++++++++++++++++++++++++++++++
 arch/parisc/mm/init.c               |  42 ++++------
 17 files changed, 394 insertions(+), 126 deletions(-)
 create mode 100644 arch/parisc/include/asm/hugetlb.h
 create mode 100644 arch/parisc/mm/hugetlbpage.c

-- 
2.1.0

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 1/9] parisc: Fix wrong comment regarding first pmd entry flags
Date: Fri, 20 Nov 2015 22:38:34 +0100
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The first pmd entry is marked with PxD_FLAG_ATTACHED instead of
_PAGE_GATEWAY.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/pgalloc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index 3edbb9f..f2fd327 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -35,7 +35,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 				        PxD_FLAG_VALID | 
 					PxD_FLAG_ATTACHED) 
 			+ (__u32)(__pa((unsigned long)pgd) >> PxD_VALUE_SHIFT));
-		/* The first pmd entry also is marked with _PAGE_GATEWAY as
+		/* The first pmd entry also is marked with PxD_FLAG_ATTACHED as
 		 * a signal that this pmd may not be freed */
 		__pgd_val_set(*pgd, PxD_FLAG_ATTACHED);
 #endif
-- 
2.1.0

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From - Thu Nov 08 21:38:03 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 2/9] parisc: Drop definition of start_thread_som for HP-UX SOM binaries
Date: Fri, 20 Nov 2015 22:38:35 +0100
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The definition of start_thread_som was planned to be used to execute
HP-UX SOM binaries. Since HP-UX compatibility was dropped with kernel 4.0
there is no need to carry it further.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/processor.h | 27 ---------------------------
 1 file changed, 27 deletions(-)

diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 54adb60..7e759ec 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -192,33 +192,6 @@ void show_trace(struct task_struct *task, unsigned long *stack);
  */
 typedef unsigned int elf_caddr_t;
 
-#define start_thread_som(regs, new_pc, new_sp) do {	\
-	unsigned long *sp = (unsigned long *)new_sp;	\
-	__u32 spaceid = (__u32)current->mm->context;	\
-	unsigned long pc = (unsigned long)new_pc;	\
-	/* offset pc for priv. level */			\
-	pc |= 3;					\
-							\
-	regs->iasq[0] = spaceid;			\
-	regs->iasq[1] = spaceid;			\
-	regs->iaoq[0] = pc;				\
-	regs->iaoq[1] = pc + 4;                         \
-	regs->sr[2] = LINUX_GATEWAY_SPACE;              \
-	regs->sr[3] = 0xffff;				\
-	regs->sr[4] = spaceid;				\
-	regs->sr[5] = spaceid;				\
-	regs->sr[6] = spaceid;				\
-	regs->sr[7] = spaceid;				\
-	regs->gr[ 0] = USER_PSW;                        \
-	regs->gr[30] = ((new_sp)+63)&~63;		\
-	regs->gr[31] = pc;				\
-							\
-	get_user(regs->gr[26],&sp[0]);			\
-	get_user(regs->gr[25],&sp[-1]); 		\
-	get_user(regs->gr[24],&sp[-2]); 		\
-	get_user(regs->gr[23],&sp[-3]); 		\
-} while(0)

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.stable
Subject: [PATCH 3/9] parisc: Fix asm/mman.h regarding MAP_HUGETLB and MADV_XX flags
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On parisc we have up to now never supported Huge Pages, even glibc did
not defined MAP_HUGETLB for parisc. Since the Huge Page support is being
added now, clean up existing definitions for MAP_HUGETLB and friends.

Drop lots of MADV_xxK_PAGES flags, which were never used and were
designed for a patch which was never integrated into the Linux
kernel. Instead move other MADV_ flags to make them more compatible to
other linux architectures.

Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/uapi/asm/mman.h | 29 ++++++++++-------------------
 1 file changed, 10 insertions(+), 19 deletions(-)

diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..9ac77f1 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -19,11 +19,12 @@
 #define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
 #define MAP_LOCKED	0x2000		/* pages are locked */
 #define MAP_NORESERVE	0x4000		/* don't check for reservations */
-#define MAP_GROWSDOWN	0x8000		/* stack-like segment */
+#define MAP_GROWSDOWN	0x8000		/* x86 stack-like segment */
 #define MAP_POPULATE	0x10000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x20000		/* do not block on IO */
-#define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
-#define MAP_HUGETLB	0x80000		/* create a huge page mapping */
+#define MAP_HUGETLB	0x40000		/* create a huge page mapping */
+#define MAP_GROWSUP	0x80000		/* parisc stack-like segment */
+#define MAP_STACK	MAP_GROWSUP	/* give out an address that is best suited for process/thread stacks */
 
 #define MS_SYNC		1		/* synchronous memory sync */
 #define MS_ASYNC	2		/* sync memory asynchronously */
@@ -46,25 +47,15 @@
 #define MADV_DONTFORK	10		/* don't inherit across fork */
 #define MADV_DOFORK	11		/* do inherit across fork */
 
-/* The range 12-64 is reserved for page size specification. */
-#define MADV_4K_PAGES   12              /* Use 4K pages  */
-#define MADV_16K_PAGES  14              /* Use 16K pages */
-#define MADV_64K_PAGES  16              /* Use 64K pages */
-#define MADV_256K_PAGES 18              /* Use 256K pages */
-#define MADV_1M_PAGES   20              /* Use 1 Megabyte pages */
-#define MADV_4M_PAGES   22              /* Use 4 Megabyte pages */
-#define MADV_16M_PAGES  24              /* Use 16 Megabyte pages */
-#define MADV_64M_PAGES  26              /* Use 64 Megabyte pages */
+#define MADV_MERGEABLE   12		/* KSM may merge identical pages */
+#define MADV_UNMERGEABLE 13		/* KSM may not merge identical pages */
 
-#define MADV_MERGEABLE   65		/* KSM may merge identical pages */
-#define MADV_UNMERGEABLE 66		/* KSM may not merge identical pages */
+#define MADV_HUGEPAGE	14		/* Worth backing with hugepages */
+#define MADV_NOHUGEPAGE	15		/* Not worth backing with hugepages */
 
-#define MADV_HUGEPAGE	67		/* Worth backing with hugepages */
-#define MADV_NOHUGEPAGE	68		/* Not worth backing with hugepages */

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Subject: [PATCH 9/9] parisc: Map kernel text and data on huge pages
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Adjust the linker script and map_pages() to map kernel text and data on
physical 1MB huge/large pages.

The bss section is the last section in the kernel layout and if huge
pages are enabled we may end off with unused memory which we now will
use for the bootmap tables.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/kernel/asm-offsets.c |  8 ++++++++
 arch/parisc/kernel/vmlinux.lds.S |  9 ++++++---
 arch/parisc/mm/init.c            | 42 +++++++++++++++++-----------------------
 3 files changed, 32 insertions(+), 27 deletions(-)

diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index 59001ce..d2f6257 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -290,6 +290,14 @@ int main(void)
 	DEFINE(ASM_PFN_PTE_SHIFT, PFN_PTE_SHIFT);
 	DEFINE(ASM_PT_INITIAL, PT_INITIAL);
 	BLANK();
+	/* HUGEPAGE_SIZE is only used in vmlinux.lds.S to align kernel text
+	 * and kernel data on physical huge pages */
+#ifdef CONFIG_HUGETLB_PAGE
+	DEFINE(HUGEPAGE_SIZE, 1UL << REAL_HPAGE_SHIFT);
+#else
+	DEFINE(HUGEPAGE_SIZE, PAGE_SIZE);
+#endif
+	BLANK();
 	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
 	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
 	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 0dacc5c..308f290 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -60,7 +60,7 @@ SECTIONS
 		EXIT_DATA
 	}
 	PERCPU_SECTION(8)
-	. = ALIGN(PAGE_SIZE);
+	. = ALIGN(HUGEPAGE_SIZE);
 	__init_end = .;
 	/* freed after init ends here */
 
@@ -116,7 +116,7 @@ SECTIONS
 	 * that we can properly leave these
 	 * as writable
 	 */
-	. = ALIGN(PAGE_SIZE);
+	. = ALIGN(HUGEPAGE_SIZE);
 	data_start = .;
 
 	EXCEPTION_TABLE(8)
@@ -135,8 +135,11 @@ SECTIONS
 	_edata = .;
 
 	/* BSS */
-	BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 8)
+	BSS_SECTION(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE)
+
+	/* bootmap is allocated in setup_bootmem() directly behind bss. */
 
+	. = ALIGN(HUGEPAGE_SIZE);
 	_end = . ;
 
 	STABS_DEBUG
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index c229427..976fb6e 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -265,7 +265,7 @@ static void __init setup_bootmem(void)
 	for (i = 0; i < npmem_ranges; i++)
 		bootmap_pages += bootmem_bootmap_pages(pmem_ranges[i].pages);
 
-	bootmap_start_pfn = PAGE_ALIGN(__pa((unsigned long) &_end)) >> PAGE_SHIFT;
+	bootmap_start_pfn = PAGE_ALIGN(__pa((unsigned long) &__bss_stop)) >> PAGE_SHIFT;
 
 #ifdef CONFIG_DISCONTIGMEM
 	for (i = 0; i < MAX_PHYSMEM_RANGES; i++) {
@@ -407,15 +407,11 @@ static void __init map_pages(unsigned long start_vaddr,
 	unsigned long vaddr;
 	unsigned long ro_start;
 	unsigned long ro_end;
-	unsigned long fv_addr;
-	unsigned long gw_addr;
-	extern const unsigned long fault_vector_20;
-	extern void * const linux_gateway_page;
+	unsigned long kernel_end;
 
 	ro_start = __pa((unsigned long)_text);
 	ro_end   = __pa((unsigned long)&data_start);
-	fv_addr  = __pa((unsigned long)&fault_vector_20) & PAGE_MASK;
-	gw_addr  = __pa((unsigned long)&linux_gateway_page) & PAGE_MASK;
+	kernel_end  = __pa((unsigned long)&_end);
 
 	end_paddr = start_paddr + size;
 
@@ -473,24 +469,25 @@ static void __init map_pages(unsigned long start_vaddr,
 			for (tmp2 = start_pte; tmp2 < PTRS_PER_PTE; tmp2++, pg_table++) {
 				pte_t pte;
 
-				/*
-				 * Map the fault vector writable so we can
-				 * write the HPMC checksum.
-				 */
 				if (force)
 					pte =  __mk_pte(address, pgprot);
-				else if (parisc_text_address(vaddr) &&
-					 address != fv_addr)
+				else if (parisc_text_address(vaddr)) {
 					pte = __mk_pte(address, PAGE_KERNEL_EXEC);
+					if (address >= ro_start && address < kernel_end)
+						pte = pte_mkhuge(pte);
+				}
 				else
 #if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
-				if (address >= ro_start && address < ro_end
-							&& address != fv_addr
-							&& address != gw_addr)
-					pte = __mk_pte(address, PAGE_KERNEL_RO);
-				else
+				if (address >= ro_start && address < ro_end) {
+					pte = __mk_pte(address, PAGE_KERNEL_EXEC);
+					pte = pte_mkhuge(pte);
+				} else
 #endif
+				{
 					pte = __mk_pte(address, pgprot);
+					if (address >= ro_start && address < kernel_end)
+						pte = pte_mkhuge(pte);
+				}
 
 				if (address >= end_paddr) {
 					if (force)
@@ -534,15 +531,12 @@ void free_initmem(void)
 
 	/* force the kernel to see the new TLB entries */
 	__flush_tlb_range(0, init_begin, init_end);
-	/* Attempt to catch anyone trying to execute code here
-	 * by filling the page with BRK insns.
-	 */
-	memset((void *)init_begin, 0x00, init_end - init_begin);
+
 	/* finally dump all the instructions which were cached, since the
 	 * pages are no-longer executable */
 	flush_icache_range(init_begin, init_end);
 	
-	free_initmem_default(-1);
+	free_initmem_default(POISON_FREE_INITMEM);
 
 	/* set up a new led state on systems shipped LED State panel */
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE);
@@ -712,8 +706,8 @@ static void __init pagetable_init(void)
 		unsigned long size;
 
 		start_paddr = pmem_ranges[range].start_pfn << PAGE_SHIFT;
-		end_paddr = start_paddr + (pmem_ranges[range].pages << PAGE_SHIFT);
 		size = pmem_ranges[range].pages << PAGE_SHIFT;
+		end_paddr = start_paddr + size;
 
 		map_pages((unsigned long)__va(start_paddr), start_paddr,
 			  size, PAGE_KERNEL, 0);
-- 
2.1.0

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From - Thu Nov 08 21:38:03 2018
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Subject: [PATCH 7/9] parisc: Use long branch to do_syscall_trace_exit
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Use the 22bit instead of the 17bit branch instruction on a 64bit kernel
to reach the do_syscall_trace_exit function from the gateway page.
A huge page enabled kernel may need the additional branch distance bits.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/kernel/syscall.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 0b8d26d..3fbd725 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -369,7 +369,7 @@ tracesys_exit:
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
 	ldo	TASK_REGS(%r1),%r26
-	bl	do_syscall_trace_exit,%r2
+	BL	do_syscall_trace_exit,%r2
 	STREG   %r28,TASK_PT_GR28(%r1)          /* save return value now */
 	ldo     -THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1      /* get task ptr */
 	LDREG	TI_TASK(%r1), %r1
@@ -390,7 +390,7 @@ tracesys_sigexit:
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
-	bl	do_syscall_trace_exit,%r2
+	BL	do_syscall_trace_exit,%r2
 	ldo	TASK_REGS(%r1),%r26
 
 	ldil	L%syscall_exit_rfi,%r1
-- 
2.1.0

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Huge pages on parisc will have the same size as one pmd table, which
is on a 64bit kernel 2MB on a kernel with 4K kernel page sizes, and
on a 32bit kernel 4MB when used with 4K kernel pages.

Since parisc does not physically supports 2MB huge page sizes, emulate
it with two consecutive 1MB page sizes instead. Keeping the same huge
page size as one pmd will allow us to add transparent huge page support
later on.

Bit 21 in the pte flags was unused and will now be used to mark a page
as huge page (_PAGE_HPAGE_BIT).

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/page.h    | 13 ++++++++++++-
 arch/parisc/include/asm/pgtable.h | 20 +++++++++++++++++---
 2 files changed, 29 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index 60d5d17..80e742a 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -145,11 +145,22 @@ extern int npmem_ranges;
 #endif /* CONFIG_DISCONTIGMEM */
 
 #ifdef CONFIG_HUGETLB_PAGE
-#define HPAGE_SHIFT		22	/* 4MB (is this fixed?) */
+#define HPAGE_SHIFT		PMD_SHIFT /* fixed for transparent huge pages */
 #define HPAGE_SIZE      	((1UL) << HPAGE_SHIFT)
 #define HPAGE_MASK		(~(HPAGE_SIZE - 1))
 #define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)
+
+#if defined(CONFIG_64BIT) && defined(CONFIG_PARISC_PAGE_SIZE_4KB)
+# define REAL_HPAGE_SHIFT	20 /* 20 = 1MB */
+# define _HUGE_PAGE_SIZE_ENCODING_DEFAULT _PAGE_SIZE_ENCODING_1M
+#elif !defined(CONFIG_64BIT) && defined(CONFIG_PARISC_PAGE_SIZE_4KB)
+# define REAL_HPAGE_SHIFT	22 /* 22 = 4MB */
+# define _HUGE_PAGE_SIZE_ENCODING_DEFAULT _PAGE_SIZE_ENCODING_4M
+#else
+# define REAL_HPAGE_SHIFT	24 /* 24 = 16MB */
+# define _HUGE_PAGE_SIZE_ENCODING_DEFAULT _PAGE_SIZE_ENCODING_16M
 #endif
+#endif /* CONFIG_HUGETLB_PAGE */
 
 #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index f93c4a4..638317a 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -167,7 +167,7 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 #define _PAGE_NO_CACHE_BIT 24   /* (0x080) Uncached Page (U bit) */
 #define _PAGE_ACCESSED_BIT 23   /* (0x100) Software: Page Accessed */
 #define _PAGE_PRESENT_BIT  22   /* (0x200) Software: translation valid */
-/* bit 21 was formerly the FLUSH bit but is now unused */
+#define _PAGE_HPAGE_BIT    21   /* (0x400) Software: Huge Page */
 #define _PAGE_USER_BIT     20   /* (0x800) Software: User accessible page */
 
 /* N.B. The bits are defined in terms of a 32 bit word above, so the */
@@ -194,6 +194,7 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 #define _PAGE_NO_CACHE (1 << xlate_pabit(_PAGE_NO_CACHE_BIT))
 #define _PAGE_ACCESSED (1 << xlate_pabit(_PAGE_ACCESSED_BIT))
 #define _PAGE_PRESENT  (1 << xlate_pabit(_PAGE_PRESENT_BIT))
+#define _PAGE_HUGE     (1 << xlate_pabit(_PAGE_HPAGE_BIT))
 #define _PAGE_USER     (1 << xlate_pabit(_PAGE_USER_BIT))
 
 #define _PAGE_TABLE	(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE |  _PAGE_DIRTY | _PAGE_ACCESSED)
@@ -217,7 +218,7 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 #define PxD_FLAG_VALID    (1 << xlate_pabit(_PxD_VALID_BIT))
 #define PxD_FLAG_MASK     (0xf)
 #define PxD_FLAG_SHIFT    (4)
-#define PxD_VALUE_SHIFT   (8) /* (PAGE_SHIFT-PxD_FLAG_SHIFT) */
+#define PxD_VALUE_SHIFT   (PFN_PTE_SHIFT-PxD_FLAG_SHIFT)
 
 #ifndef __ASSEMBLY__
 
@@ -363,6 +364,18 @@ static inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) |= _PAGE_WRITE; return
 static inline pte_t pte_mkspecial(pte_t pte)	{ return pte; }
 
 /*
+ * Huge pte definitions.
+ */
+#ifdef CONFIG_HUGETLB_PAGE
+#define pte_huge(pte)           (pte_val(pte) & _PAGE_HUGE)
+#define pte_mkhuge(pte)         (__pte(pte_val(pte) | _PAGE_HUGE))
+#else
+#define pte_huge(pte)           (0)
+#define pte_mkhuge(pte)         (pte)
+#endif
+
+
+/*
  * Conversion functions: convert a page and protection to a page entry,
  * and a page entry and page directory to the page they refer to.
  */
@@ -410,8 +423,9 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 /* Find an entry in the second-level page table.. */
 
 #if CONFIG_PGTABLE_LEVELS == 3
+#define pmd_index(addr)         (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))
 #define pmd_offset(dir,address) \
-((pmd_t *) pgd_page_vaddr(*(dir)) + (((address)>>PMD_SHIFT) & (PTRS_PER_PMD-1)))
+((pmd_t *) pgd_page_vaddr(*(dir)) + pmd_index(address))
 #else
 #define pmd_offset(dir,addr) ((pmd_t *) dir)
 #endif
-- 
2.1.0

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From - Thu Nov 08 21:38:03 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 5/9] parisc: Initialize the fault vector earlier in the boot process.
Date: Fri, 20 Nov 2015 22:38:38 +0100
Lines: 138
Approved: news@gmane.org
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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To: linux-parisc@vger.kernel.org
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A fault vector on parisc needs to be 2K aligned.  Furthermore the
checksum of the fault vector needs to sum up to 0 which is being
calculated and written at runtime.

Up to now we aligned both PA20 and PA11 fault vectors on the same 4K
page in order to easily write the checksum after having mapped the
kernel read-only (by mapping this page only as read-write).
But when we want to map the kernel text and data on huge pages this
makes things harder.
So, simplify it by aligning both fault vectors on 2K boundries and write
the checksum before we map the page read-only.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/kernel/entry.S | 11 +++--------
 arch/parisc/kernel/setup.c |  3 +++
 arch/parisc/kernel/traps.c | 35 +++++++++++++++--------------------
 3 files changed, 21 insertions(+), 28 deletions(-)

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index c5ef408..b2fdc44 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -646,17 +646,12 @@
 
 
 	/*
-	 * Align fault_vector_20 on 4K boundary so that both
-	 * fault_vector_11 and fault_vector_20 are on the
-	 * same page. This is only necessary as long as we
-	 * write protect the kernel text, which we may stop
-	 * doing once we use large page translations to cover
-	 * the static part of the kernel address space.
+	 * Fault_vectors are architecturally required to be aligned on a 2K
+	 * boundary
 	 */
 
 	.text
-
-	.align 4096
+	.align 2048
 
 ENTRY(fault_vector_20)
 	/* First vector is invalid (0) */
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 72a3c65..f097762 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -377,6 +377,7 @@ arch_initcall(parisc_init);
 void start_parisc(void)
 {
 	extern void start_kernel(void);
+	extern void early_trap_init(void);
 
 	int ret, cpunum;
 	struct pdc_coproc_cfg coproc_cfg;
@@ -397,6 +398,8 @@ void start_parisc(void)
 		panic("must have an fpu to boot linux");
 	}
 
+	early_trap_init(); /* initialize checksum of fault_vector */
+
 	start_kernel();
 	// not reached
 }
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index b99b39f..553b098 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -807,7 +807,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 }
 
 
-int __init check_ivt(void *iva)
+void __init initialize_ivt(const void *iva)
 {
 	extern u32 os_hpmc_size;
 	extern const u32 os_hpmc[];
@@ -818,8 +818,8 @@ int __init check_ivt(void *iva)
 	u32 *hpmcp;
 	u32 length;
 
-	if (strcmp((char *)iva, "cows can fly"))
-		return -1;
+	if (strcmp((const char *)iva, "cows can fly"))
+		panic("IVT invalid");
 
 	ivap = (u32 *)iva;
 
@@ -839,28 +839,23 @@ int __init check_ivt(void *iva)
 	    check += ivap[i];
 
 	ivap[5] = -check;
-
-	return 0;
 }
 	
-#ifndef CONFIG_64BIT
-extern const void fault_vector_11;
-#endif
-extern const void fault_vector_20;
 
-void __init trap_init(void)
+/* early_trap_init() is called before we set up kernel mappings and
+ * write-protect the kernel */
+void  __init early_trap_init(void)
 {
-	void *iva;
+	extern const void fault_vector_20;
 
-	if (boot_cpu_data.cpu_type >= pcxu)
-		iva = (void *) &fault_vector_20;
-	else
-#ifdef CONFIG_64BIT
-		panic("Can't boot 64-bit OS on PA1.1 processor!");
-#else
-		iva = (void *) &fault_vector_11;
+#ifndef CONFIG_64BIT
+	extern const void fault_vector_11;
+	initialize_ivt(&fault_vector_11);
 #endif
 
-	if (check_ivt(iva))
-		panic("IVT invalid");
+	initialize_ivt(&fault_vector_20);
+}
+
+void __init trap_init(void)
+{
 }
-- 
2.1.0

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From - Thu Nov 08 21:38:03 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 6/9] parisc: Increase initial kernel mapping to 32MB on 64bit kernel
Date: Fri, 20 Nov 2015 22:38:39 +0100
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For the 64bit kernel the initially 16 MB kernel memory might become too
small if you build a kernel with many modules built-in and with kernel
text and data areas mapped on huge pages.

This patch increases the initial mapping to 32MB for 64bit kernels and
keeps 16MB for 32bit kernels.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/pgtable.h | 6 +++++-
 arch/parisc/kernel/head.S         | 4 ++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 638317a..d8534f9 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -83,7 +83,11 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e))
 
 /* This is the size of the initially mapped kernel memory */
-#define KERNEL_INITIAL_ORDER	24	/* 0 to 1<<24 = 16MB */
+#ifdef CONFIG_64BIT
+#define KERNEL_INITIAL_ORDER	25	/* 1<<25 = 32MB */
+#else
+#define KERNEL_INITIAL_ORDER	24	/* 1<<24 = 16MB */
+#endif
 #define KERNEL_INITIAL_SIZE	(1 << KERNEL_INITIAL_ORDER)
 
 #if CONFIG_PGTABLE_LEVELS == 3
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index e7d6452..75aa0db 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -69,7 +69,7 @@ $bss_loop:
 	stw,ma          %arg2,4(%r1)
 	stw,ma          %arg3,4(%r1)
 
-	/* Initialize startup VM. Just map first 8/16 MB of memory */
+	/* Initialize startup VM. Just map first 16/32 MB of memory */
 	load32		PA(swapper_pg_dir),%r4
 	mtctl		%r4,%cr24	/* Initialize kernel root pointer */
 	mtctl		%r4,%cr25	/* Initialize user root pointer */
@@ -107,7 +107,7 @@ $bss_loop:
 	/* Now initialize the PTEs themselves.  We use RWX for
 	 * everything ... it will get remapped correctly later */
 	ldo		0+_PAGE_KERNEL_RWX(%r0),%r3 /* Hardwired 0 phys addr start */
-	ldi		(1<<(KERNEL_INITIAL_ORDER-PAGE_SHIFT)),%r11 /* PFN count */
+	load32		(1<<(KERNEL_INITIAL_ORDER-PAGE_SHIFT)),%r11 /* PFN count */
 	load32		PA(pg0),%r1
 
 $pgt_fill_loop:
-- 
2.1.0

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 8/9] parisc: Add Huge Page and HUGETLBFS support
Date: Fri, 20 Nov 2015 22:38:41 +0100
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This patch adds huge page support to allow userspace to allocate huge
pages and to use hugetlbfs filesystem on 32- and 64-bit Linux kernels.
A later patch will add kernel support to map kernel text and data on
huge pages.

The only requirement is, that the kernel needs to be compiled for a
PA8X00 CPU (PA2.0 architecture). Older PA1.X CPUs do not support
variable page sizes. 64bit Kernels are compiled for PA2.0 by default.

Technically on parisc multiple physical huge pages may be needed to
emulate standard 2MB huge pages.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/Kconfig               |   3 +
 arch/parisc/include/asm/hugetlb.h |  85 ++++++++++++++++++++
 arch/parisc/kernel/entry.S        |  45 +++++++----
 arch/parisc/kernel/setup.c        |  11 ++-
 arch/parisc/mm/Makefile           |   1 +
 arch/parisc/mm/hugetlbpage.c      | 162 ++++++++++++++++++++++++++++++++++++++
 6 files changed, 292 insertions(+), 15 deletions(-)
 create mode 100644 arch/parisc/include/asm/hugetlb.h
 create mode 100644 arch/parisc/mm/hugetlbpage.c

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index c365469..729f891 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -108,6 +108,9 @@ config PGTABLE_LEVELS
 	default 3 if 64BIT && PARISC_PAGE_SIZE_4KB
 	default 2
 
+config SYS_SUPPORTS_HUGETLBFS
+	def_bool y if PA20
+
 source "init/Kconfig"
 
 source "kernel/Kconfig.freezer"
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
new file mode 100644
index 0000000..7d56a9c
--- /dev/null
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -0,0 +1,85 @@
+#ifndef _ASM_PARISC64_HUGETLB_H
+#define _ASM_PARISC64_HUGETLB_H
+
+#include <asm/page.h>
+#include <asm-generic/hugetlb.h>
+
+
+void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		     pte_t *ptep, pte_t pte);
+
+pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
+			      pte_t *ptep);
+
+static inline int is_hugepage_only_range(struct mm_struct *mm,
+					 unsigned long addr,
+					 unsigned long len) {
+	return 0;
+}
+
+/*
+ * If the arch doesn't supply something else, assume that hugepage
+ * size aligned regions are ok without further preparation.
+ */
+static inline int prepare_hugepage_range(struct file *file,
+			unsigned long addr, unsigned long len)
+{
+	if (len & ~HPAGE_MASK)
+		return -EINVAL;
+	if (addr & ~HPAGE_MASK)
+		return -EINVAL;
+	return 0;
+}
+
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
+					  unsigned long addr, unsigned long end,
+					  unsigned long floor,
+					  unsigned long ceiling)
+{
+	free_pgd_range(tlb, addr, end, floor, ceiling);
+}
+
+static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
+					 unsigned long addr, pte_t *ptep)
+{
+}
+
+static inline int huge_pte_none(pte_t pte)
+{
+	return pte_none(pte);
+}
+
+static inline pte_t huge_pte_wrprotect(pte_t pte)
+{
+	return pte_wrprotect(pte);
+}
+
+static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
+					   unsigned long addr, pte_t *ptep)
+{
+	pte_t old_pte = *ptep;
+	set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
+}
+
+static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+					     unsigned long addr, pte_t *ptep,
+					     pte_t pte, int dirty)
+{
+	int changed = !pte_same(*ptep, pte);
+	if (changed) {
+		set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
+		flush_tlb_page(vma, addr);
+	}
+	return changed;
+}
+
+static inline pte_t huge_ptep_get(pte_t *ptep)
+{
+	return *ptep;
+}
+
+static inline void arch_clear_hugepage_flags(struct page *page)
+{
+}
+
+#endif /* _ASM_PARISC64_HUGETLB_H */
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index b2fdc44..623496c 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -502,21 +502,38 @@
 	STREG		\pte,0(\ptp)
 	.endm
 
+	/* We have (depending on the page size):
+	 * - 38 to 52-bit Physical Page Number
+	 * - 12 to 26-bit page offset
+	 */
 	/* bitshift difference between a PFN (based on kernel's PAGE_SIZE)
 	 * to a CPU TLB 4k PFN (4k => 12 bits to shift) */
-	#define PAGE_ADD_SHIFT  (PAGE_SHIFT-12)
+	#define PAGE_ADD_SHIFT		(PAGE_SHIFT-12)
+	#define PAGE_ADD_HUGE_SHIFT	(REAL_HPAGE_SHIFT-12)
 
 	/* Drop prot bits and convert to page addr for iitlbt and idtlbt */
-	.macro		convert_for_tlb_insert20 pte
+	.macro		convert_for_tlb_insert20 pte,tmp
+#ifdef CONFIG_HUGETLB_PAGE
+	copy		\pte,\tmp
+	extrd,u		\tmp,(63-ASM_PFN_PTE_SHIFT)+(63-58)+PAGE_ADD_SHIFT,\
+				64-PAGE_SHIFT-PAGE_ADD_SHIFT,\pte
+
+	depdi		_PAGE_SIZE_ENCODING_DEFAULT,63,\
+				(63-58)+PAGE_ADD_SHIFT,\pte
+	extrd,u,*=	\tmp,_PAGE_HPAGE_BIT+32,1,%r0
+	depdi		_HUGE_PAGE_SIZE_ENCODING_DEFAULT,63,\
+				(63-58)+PAGE_ADD_HUGE_SHIFT,\pte
+#else /* Huge pages disabled */
 	extrd,u		\pte,(63-ASM_PFN_PTE_SHIFT)+(63-58)+PAGE_ADD_SHIFT,\
 				64-PAGE_SHIFT-PAGE_ADD_SHIFT,\pte
 	depdi		_PAGE_SIZE_ENCODING_DEFAULT,63,\
 				(63-58)+PAGE_ADD_SHIFT,\pte
+#endif
 	.endm
 
 	/* Convert the pte and prot to tlb insertion values.  How
 	 * this happens is quite subtle, read below */
-	.macro		make_insert_tlb	spc,pte,prot
+	.macro		make_insert_tlb	spc,pte,prot,tmp
 	space_to_prot   \spc \prot        /* create prot id from space */
 	/* The following is the real subtlety.  This is depositing
 	 * T <-> _PAGE_REFTRAP
@@ -553,7 +570,7 @@
 	depdi		1,12,1,\prot
 
 	/* Drop prot bits and convert to page addr for iitlbt and idtlbt */
-	convert_for_tlb_insert20 \pte
+	convert_for_tlb_insert20 \pte \tmp
 	.endm
 
 	/* Identical macro to make_insert_tlb above, except it
@@ -1142,7 +1159,7 @@ dtlb_miss_20w:
 	tlb_lock	spc,ptp,pte,t0,t1,dtlb_check_alias_20w
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t1
 	
 	idtlbt          pte,prot
 
@@ -1168,7 +1185,7 @@ nadtlb_miss_20w:
 	tlb_lock	spc,ptp,pte,t0,t1,nadtlb_check_alias_20w
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t1
 
 	idtlbt          pte,prot
 
@@ -1262,7 +1279,7 @@ dtlb_miss_20:
 	tlb_lock	spc,ptp,pte,t0,t1,dtlb_check_alias_20
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t1
 
 	f_extend	pte,t1
 
@@ -1290,7 +1307,7 @@ nadtlb_miss_20:
 	tlb_lock	spc,ptp,pte,t0,t1,nadtlb_check_alias_20
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t1
 
 	f_extend	pte,t1
 	
@@ -1399,7 +1416,7 @@ itlb_miss_20w:
 	tlb_lock	spc,ptp,pte,t0,t1,itlb_fault
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t1
 	
 	iitlbt          pte,prot
 
@@ -1423,7 +1440,7 @@ naitlb_miss_20w:
 	tlb_lock	spc,ptp,pte,t0,t1,naitlb_check_alias_20w
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t1
 
 	iitlbt          pte,prot
 
@@ -1509,7 +1526,7 @@ itlb_miss_20:
 	tlb_lock	spc,ptp,pte,t0,t1,itlb_fault
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t1
 
 	f_extend	pte,t1
 
@@ -1529,7 +1546,7 @@ naitlb_miss_20:
 	tlb_lock	spc,ptp,pte,t0,t1,naitlb_check_alias_20
 	update_accessed	ptp,pte,t0,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t1
 
 	f_extend	pte,t1
 
@@ -1561,7 +1578,7 @@ dbit_trap_20w:
 	tlb_lock	spc,ptp,pte,t0,t1,dbit_fault
 	update_dirty	ptp,pte,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t1
 		
 	idtlbt          pte,prot
 
@@ -1605,7 +1622,7 @@ dbit_trap_20:
 	tlb_lock	spc,ptp,pte,t0,t1,dbit_fault
 	update_dirty	ptp,pte,t1
 
-	make_insert_tlb	spc,pte,prot
+	make_insert_tlb	spc,pte,prot,t1
 
 	f_extend	pte,t1
 	
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index f097762..f7ea626 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -130,7 +130,16 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_INFO "The 32-bit Kernel has started...\n");
 #endif
 
-	printk(KERN_INFO "Default page size is %dKB.\n", (int)(PAGE_SIZE / 1024));
+	printk(KERN_INFO "Kernel default page size is %d KB. Huge pages ",
+		(int)(PAGE_SIZE / 1024));
+#ifdef CONFIG_HUGETLB_PAGE
+	printk(KERN_CONT "enabled with %d MB physical and %d MB virtual size",
+		 1 << (REAL_HPAGE_SHIFT - 20), 1 << (HPAGE_SHIFT - 20));
+#else
+	printk(KERN_CONT "disabled");
+#endif
+	printk(KERN_CONT ".\n");
+
 
 	pdc_console_init();
 
diff --git a/arch/parisc/mm/Makefile b/arch/parisc/mm/Makefile
index 758ceef..134393d 100644
--- a/arch/parisc/mm/Makefile
+++ b/arch/parisc/mm/Makefile
@@ -3,3 +3,4 @@
 #
 
 obj-y	 := init.o fault.o ioremap.o
+obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
diff --git a/arch/parisc/mm/hugetlbpage.c b/arch/parisc/mm/hugetlbpage.c
new file mode 100644
index 0000000..36033c0
--- /dev/null
+++ b/arch/parisc/mm/hugetlbpage.c
@@ -0,0 +1,162 @@
+/*
+ * PARISC64 Huge TLB page support.
+ *
+ * This parisc implementation is heavily based on the SPARC and x86 code.
+ *
+ * Copyright (C) 2015 Helge Deller <deller@gmx.de>
+ */
+
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/hugetlb.h>
+#include <linux/pagemap.h>
+#include <linux/sysctl.h>
+
+#include <asm/mman.h>
+#include <asm/pgalloc.h>
+#include <asm/tlb.h>
+#include <asm/tlbflush.h>
+#include <asm/cacheflush.h>
+#include <asm/mmu_context.h>
+
+
+unsigned long
+hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
+		unsigned long len, unsigned long pgoff, unsigned long flags)
+{
+	struct hstate *h = hstate_file(file);
+
+	if (len & ~huge_page_mask(h))
+		return -EINVAL;
+	if (len > TASK_SIZE)
+		return -ENOMEM;
+
+	if (flags & MAP_FIXED)
+		if (prepare_hugepage_range(file, addr, len))
+			return -EINVAL;
+
+	if (addr)
+		addr = ALIGN(addr, huge_page_size(h));
+
+	/* we need to make sure the colouring is OK */
+	return arch_get_unmapped_area(file, addr, len, pgoff, flags);
+}
+
+
+pte_t *huge_pte_alloc(struct mm_struct *mm,
+			unsigned long addr, unsigned long sz)
+{
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte = NULL;
+
+	/* We must align the address, because our caller will run
+	 * set_huge_pte_at() on whatever we return, which writes out
+	 * all of the sub-ptes for the hugepage range.  So we have
+	 * to give it the first such sub-pte.
+	 */
+	addr &= HPAGE_MASK;
+
+	pgd = pgd_offset(mm, addr);
+	pud = pud_alloc(mm, pgd, addr);
+	if (pud) {
+		pmd = pmd_alloc(mm, pud, addr);
+		if (pmd)
+			pte = pte_alloc_map(mm, NULL, pmd, addr);
+	}
+	return pte;
+}
+
+pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
+{
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte = NULL;
+
+	addr &= HPAGE_MASK;
+
+	pgd = pgd_offset(mm, addr);
+	if (!pgd_none(*pgd)) {
+		pud = pud_offset(pgd, addr);
+		if (!pud_none(*pud)) {
+			pmd = pmd_offset(pud, addr);
+			if (!pmd_none(*pmd))
+				pte = pte_offset_map(pmd, addr);
+		}
+	}
+	return pte;
+}
+
+/* Purge data and instruction TLB entries.  Must be called holding
+ * the pa_tlb_lock.  The TLB purge instructions are slow on SMP
+ * machines since the purge must be broadcast to all CPUs.
+ */
+static inline void purge_tlb_entries_huge(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags;
+	int i;
+
+	/* We may use multiple physical huge pages (e.g. 2x1 MB) to emulate
+	 * Linux standard huge pages (e.g. 2 MB) */
+	BUILD_BUG_ON(REAL_HPAGE_SHIFT > HPAGE_SHIFT);
+
+	addr &= HPAGE_MASK;
+	addr |= _HUGE_PAGE_SIZE_ENCODING_DEFAULT;
+
+	spin_lock_irqsave(&pa_tlb_lock, flags);
+
+	mtsp(mm->context, 1);
+	for (i = 0; i < (1 << (HPAGE_SHIFT-REAL_HPAGE_SHIFT)); i++) {
+		pdtlb(addr);
+		if (unlikely(split_tlb))
+			pitlb(addr);
+		addr += (1UL << REAL_HPAGE_SHIFT);
+	}
+
+	spin_unlock_irqrestore(&pa_tlb_lock, flags);
+}
+
+void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		     pte_t *ptep, pte_t entry)
+{
+	unsigned long addr_start;
+	int i;
+
+	addr &= HPAGE_MASK;
+	addr_start = addr;
+
+	for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
+		/* Directly write pte entry.  We could call set_pte_at(mm, addr, ptep, entry)
+		 * instead, but then we get double locking on pa_tlb_lock. */
+		*ptep = entry;
+		ptep++;
+		addr += PAGE_SIZE;
+		pte_val(entry) += PAGE_SIZE;
+	}
+
+	purge_tlb_entries_huge(mm, addr_start);
+}
+
+
+pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
+			      pte_t *ptep)
+{
+	pte_t entry;
+
+	entry = *ptep;
+	set_huge_pte_at(mm, addr, ptep, __pte(0));
+
+	return entry;
+}
+
+int pmd_huge(pmd_t pmd)
+{
+	return 0;
+}
+
+int pud_huge(pud_t pud)
+{
+	return 0;
+}
-- 
2.1.0

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Subject: Re: [PATCH 3/9] parisc: Fix asm/mman.h regarding MAP_HUGETLB and
 MADV_XX flags
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On Fri, 2015-11-20 at 22:38 +0100, Helge Deller wrote:
> On parisc we have up to now never supported Huge Pages, even glibc did
> not defined MAP_HUGETLB for parisc. Since the Huge Page support is being
> added now, clean up existing definitions for MAP_HUGETLB and friends.
>=20
> Drop lots of MADV_xxK_PAGES flags, which were never used and were
> designed for a patch which was never integrated into the Linux
> kernel. Instead move other MADV_ flags to make them more compatible to
> other linux architectures.

Changing the unimplemented values seems fine, but how can it be OK to
renumber MAP_GROWSUP, MADV_DONTDUMP and MADV_DODUMP?

Ben.

> Cc: stable@vger.kernel.org
> Signed-off-by: Helge Deller <deller@gmx.de>
> ---
> =C2=A0arch/parisc/include/uapi/asm/mman.h | 29 ++++++++++----------------=
---
> =C2=A01 file changed, 10 insertions(+), 19 deletions(-)
>=20
> diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/ua=
pi/asm/mman.h
> index 294d251..9ac77f1 100644
> --- a/arch/parisc/include/uapi/asm/mman.h
> +++ b/arch/parisc/include/uapi/asm/mman.h
> @@ -19,11 +19,12 @@
> =C2=A0#define MAP_EXECUTABLE> 	> 0x1000> 	> 	> /* mark it as an executabl=
e */
> =C2=A0#define MAP_LOCKED> 	> 0x2000> 	> 	> /* pages are locked */
> =C2=A0#define MAP_NORESERVE> 	> 0x4000> 	> 	> /* don't check for reservat=
ions */
> -#define MAP_GROWSDOWN> 	> 0x8000> 	> 	> /* stack-like segment */
> +#define MAP_GROWSDOWN> 	> 0x8000> 	> 	> /* x86 stack-like segment */
> =C2=A0#define MAP_POPULATE> 	> 0x10000> 	> 	> /* populate (prefault) page=
tables */
> =C2=A0#define MAP_NONBLOCK> 	> 0x20000> 	> 	> /* do not block on IO */
> -#define MAP_STACK> 	> 0x40000> 	> 	> /* give out an address that is best=
 suited for process/thread stacks */
> -#define MAP_HUGETLB> 	> 0x80000> 	> 	> /* create a huge page mapping */
> +#define MAP_HUGETLB> 	> 0x40000> 	> 	> /* create a huge page mapping */
> +#define MAP_GROWSUP> 	> 0x80000> 	> 	> /* parisc stack-like segment */
> +#define MAP_STACK> 	> MAP_GROWSUP> 	> /* give out an address that is bes=
t suited for process/thread stacks */
> =C2=A0
> =C2=A0#define MS_SYNC> 	> 	> 1> 	> 	> /* synchronous memory sync */
> =C2=A0#define MS_ASYNC> 	> 2> 	> 	> /* sync memory asynchronously */
> @@ -46,25 +47,15 @@
> =C2=A0#define MADV_DONTFORK> 	> 10> 	> 	> /* don't inherit across fork */
> =C2=A0#define MADV_DOFORK> 	> 11> 	> 	> /* do inherit across fork */
> =C2=A0
> -/* The range 12-64 is reserved for page size specification. */
> -#define MADV_4K_PAGES=C2=A0=C2=A0=C2=A012=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0/* Use 4K pages=C2=A0=
=C2=A0*/
> -#define MADV_16K_PAGES=C2=A0=C2=A014=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0/* Use 16K pages */
> -#define MADV_64K_PAGES=C2=A0=C2=A016=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0/* Use 64K pages */
> -#define MADV_256K_PAGES 18=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0/* Use 256K pages */
> -#define MADV_1M_PAGES=C2=A0=C2=A0=C2=A020=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0/* Use 1 Megabyte pag=
es */
> -#define MADV_4M_PAGES=C2=A0=C2=A0=C2=A022=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0/* Use 4 Megabyte pag=
es */
> -#define MADV_16M_PAGES=C2=A0=C2=A024=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0/* Use 16 Megabyte pages */
> -#define MADV_64M_PAGES=C2=A0=C2=A026=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0/* Use 64 Megabyte pages */
> +#define MADV_MERGEABLE=C2=A0=C2=A0=C2=A012> 	> 	> /* KSM may merge ident=
ical pages */
> +#define MADV_UNMERGEABLE 13> 	> 	> /* KSM may not merge identical pages =
*/
> =C2=A0
> -#define MADV_MERGEABLE=C2=A0=C2=A0=C2=A065> 	> 	> /* KSM may merge ident=
ical pages */
> -#define MADV_UNMERGEABLE 66> 	> 	> /* KSM may not merge identical pages =
*/
> +#define MADV_HUGEPAGE> 	> 14> 	> 	> /* Worth backing with hugepages */
> +#define MADV_NOHUGEPAGE> 	> 15> 	> 	> /* Not worth backing with hugepage=
s */
> =C2=A0
> -#define MADV_HUGEPAGE> 	> 67> 	> 	> /* Worth backing with hugepages */
> -#define MADV_NOHUGEPAGE> 	> 68> 	> 	> /* Not worth backing with hugepage=
s */
> -
> -#define MADV_DONTDUMP=C2=A0=C2=A0=C2=A069> 	> 	> /* Explicity exclude fr=
om the core dump,
> +#define MADV_DONTDUMP=C2=A0=C2=A0=C2=A016> 	> 	> /* Explicity exclude fr=
om the core dump,
> =C2=A0> 	> 	> 	> 	> 	> =C2=A0=C2=A0=C2=A0overrides the coredump filter bi=
ts */
> -#define MADV_DODUMP> 	> 70> 	> 	> /* Clear the MADV_NODUMP flag */
> +#define MADV_DODUMP> 	> 17> 	> 	> /* Clear the MADV_NODUMP flag */
> =C2=A0
> =C2=A0/* compatibility flags */
> =C2=A0#define MAP_FILE> 	> 0
--=20
Ben Hutchings
If you seem to know what you are doing, you'll be given more to do.
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From - Thu Nov 08 21:38:04 2018
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Subject: Re: [PATCH 3/9] parisc: Fix asm/mman.h regarding MAP_HUGETLB and
 MADV_XX flags
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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Hi Ben,

On 21.11.2015 21:57, Ben Hutchings wrote:
> On Fri, 2015-11-20 at 22:38 +0100, Helge Deller wrote:
>> On parisc we have up to now never supported Huge Pages, even glibc did
>> not defined MAP_HUGETLB for parisc. Since the Huge Page support is being
>> added now, clean up existing definitions for MAP_HUGETLB and friends.
>>
>> Drop lots of MADV_xxK_PAGES flags, which were never used and were
>> designed for a patch which was never integrated into the Linux
>> kernel. Instead move other MADV_ flags to make them more compatible to
>> other linux architectures.
> 
> Changing the unimplemented values seems fine, but how can it be OK to
> renumber MAP_GROWSUP, MADV_DONTDUMP and MADV_DODUMP?

MAP_GROWSUP is new.
MAP_STACK changed, but doesn't seeem to be used inside the kernel anyway.
MAP_HUGETLB is new.

MADV_DONTDUMP and MADV_DODUMP changed, but I tend to think that they are
not widely used (if at all on parisc), and even in glibc they are only
accessible if applications included <linux/mman.h>.
So, having the same value for both as all other architectures gives long-term
probably more benefits than keeping the current values.
My testings up to now didn't showed problems, but I'm not religious on it.
If everyone thinks it's better to not change MADV_DONTDUMP and MADV_DODUMP
I will do so.

*BUT*:
This patch was not planned by me to be sent to the stable mailing list *yet*.
Please don't apply it to the stable kernels yet, since it's not upstream yet.
I was planning to push it down with the upstream commit...

(git send-mail fooled me, I just sent to the linux-parisc mailing list, James
and Dave, but I wasn't aware that git-send-mail sent it automatically too stable
as well)
 
Helge

>> Cc: stable@vger.kernel.org
>> Signed-off-by: Helge Deller <deller@gmx.de>
>> ---
>>  arch/parisc/include/uapi/asm/mman.h | 29 ++++++++++-------------------
>>  1 file changed, 10 insertions(+), 19 deletions(-)
>>
>> diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
>> index 294d251..9ac77f1 100644
>> --- a/arch/parisc/include/uapi/asm/mman.h
>> +++ b/arch/parisc/include/uapi/asm/mman.h
>> @@ -19,11 +19,12 @@
>>  #define MAP_EXECUTABLE> 	> 0x1000> 	> 	> /* mark it as an executable */
>>  #define MAP_LOCKED> 	> 0x2000> 	> 	> /* pages are locked */
>>  #define MAP_NORESERVE> 	> 0x4000> 	> 	> /* don't check for reservations */
>> -#define MAP_GROWSDOWN> 	> 0x8000> 	> 	> /* stack-like segment */
>> +#define MAP_GROWSDOWN> 	> 0x8000> 	> 	> /* x86 stack-like segment */
>>  #define MAP_POPULATE> 	> 0x10000> 	> 	> /* populate (prefault) pagetables */
>>  #define MAP_NONBLOCK> 	> 0x20000> 	> 	> /* do not block on IO */
>> -#define MAP_STACK> 	> 0x40000> 	> 	> /* give out an address that is best suited for process/thread stacks */
>> -#define MAP_HUGETLB> 	> 0x80000> 	> 	> /* create a huge page mapping */
>> +#define MAP_HUGETLB> 	> 0x40000> 	> 	> /* create a huge page mapping */
>> +#define MAP_GROWSUP> 	> 0x80000> 	> 	> /* parisc stack-like segment */
>> +#define MAP_STACK> 	> MAP_GROWSUP> 	> /* give out an address that is best suited for process/thread stacks */
>>  
>>  #define MS_SYNC> 	> 	> 1> 	> 	> /* synchronous memory sync */
>>  #define MS_ASYNC> 	> 2> 	> 	> /* sync memory asynchronously */
>> @@ -46,25 +47,15 @@
>>  #define MADV_DONTFORK> 	> 10> 	> 	> /* don't inherit across fork */
>>  #define MADV_DOFORK> 	> 11> 	> 	> /* do inherit across fork */
>>  
>> -/* The range 12-64 is reserved for page size specification. */
>> -#define MADV_4K_PAGES   12              /* Use 4K pages  */
>> -#define MADV_16K_PAGES  14              /* Use 16K pages */
>> -#define MADV_64K_PAGES  16              /* Use 64K pages */
>> -#define MADV_256K_PAGES 18              /* Use 256K pages */
>> -#define MADV_1M_PAGES   20              /* Use 1 Megabyte pages */
>> -#define MADV_4M_PAGES   22              /* Use 4 Megabyte pages */
>> -#define MADV_16M_PAGES  24              /* Use 16 Megabyte pages */
>> -#define MADV_64M_PAGES  26              /* Use 64 Megabyte pages */
>> +#define MADV_MERGEABLE   12> 	> 	> /* KSM may merge identical pages */
>> +#define MADV_UNMERGEABLE 13> 	> 	> /* KSM may not merge identical pages */
>>  
>> -#define MADV_MERGEABLE   65> 	> 	> /* KSM may merge identical pages */
>> -#define MADV_UNMERGEABLE 66> 	> 	> /* KSM may not merge identical pages */
>> +#define MADV_HUGEPAGE> 	> 14> 	> 	> /* Worth backing with hugepages */
>> +#define MADV_NOHUGEPAGE> 	> 15> 	> 	> /* Not worth backing with hugepages */
>>  
>> -#define MADV_HUGEPAGE> 	> 67> 	> 	> /* Worth backing with hugepages */
>> -#define MADV_NOHUGEPAGE> 	> 68> 	> 	> /* Not worth backing with hugepages */
>> -
>> -#define MADV_DONTDUMP   69> 	> 	> /* Explicity exclude from the core dump,
>> +#define MADV_DONTDUMP   16> 	> 	> /* Explicity exclude from the core dump,
>>  > 	> 	> 	> 	> 	>    overrides the coredump filter bits */
>> -#define MADV_DODUMP> 	> 70> 	> 	> /* Clear the MADV_NODUMP flag */
>> +#define MADV_DODUMP> 	> 17> 	> 	> /* Clear the MADV_NODUMP flag */
>>  
>>  /* compatibility flags */
>>  #define MAP_FILE> 	> 0

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From: Ben Hutchings <ben@decadent.org.uk>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.stable
Subject: Re: [PATCH 3/9] parisc: Fix asm/mman.h regarding MAP_HUGETLB and
 MADV_XX flags
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To: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org
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On Sat, 2015-11-21 at 23:22 +0100, Helge Deller wrote:
> Hi Ben,
>=20
> On 21.11.2015 21:57, Ben Hutchings wrote:
> > On Fri, 2015-11-20 at 22:38 +0100, Helge Deller wrote:
> > > On parisc we have up to now never supported Huge Pages, even glibc di=
d
> > > not defined MAP_HUGETLB for parisc. Since the Huge Page support is be=
ing
> > > added now, clean up existing definitions for MAP_HUGETLB and friends.
> > >=20
> > > Drop lots of MADV_xxK_PAGES flags, which were never used and were
> > > designed for a patch which was never integrated into the Linux
> > > kernel. Instead move other MADV_ flags to make them more compatible t=
o
> > > other linux architectures.
> >=20
> > Changing the unimplemented values seems fine, but how can it be OK to
> > renumber MAP_GROWSUP, MADV_DONTDUMP and MADV_DODUMP?
>=20
> MAP_GROWSUP is new.
> MAP_STACK changed, but doesn't seeem to be used inside the kernel anyway.

It may not be implemented in the kernel, but it is certainly used by
userland:
https://sources.debian.net/src/glibc/2.19-20/nptl/allocatestack.c/#L513

So you can't assign any new semantics to that bit, and you might as
well keep MAP_STACK as the same value.

> MAP_HUGETLB is new.
>=20
> MADV_DONTDUMP and MADV_DODUMP changed, but I tend to think that they are
> not widely used (if at all on parisc), and even in glibc they are only
> accessible if applications included .
> So, having the same value for both as all other architectures gives long-=
term
> probably more benefits than keeping the current values.
[...]

This does not trump the fact that existing applications may break and
that is something we generally try very hard to avoid.

Ben.

--=20
Ben Hutchings
If you seem to know what you are doing, you'll be given more to do.
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From - Thu Nov 08 21:38:04 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.stable
Subject: Re: [PATCH 3/9] parisc: Fix asm/mman.h regarding MAP_HUGETLB and
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Hi Ben,

On 22.11.2015 03:21, Ben Hutchings wrote:
> On Sat, 2015-11-21 at 23:22 +0100, Helge Deller wrote:
>> On 21.11.2015 21:57, Ben Hutchings wrote:
>>> On Fri, 2015-11-20 at 22:38 +0100, Helge Deller wrote:
>>>> On parisc we have up to now never supported Huge Pages, even glibc did
>>>> not defined MAP_HUGETLB for parisc. Since the Huge Page support is being
>>>> added now, clean up existing definitions for MAP_HUGETLB and friends.
>>>>
>>>> Drop lots of MADV_xxK_PAGES flags, which were never used and were
>>>> designed for a patch which was never integrated into the Linux
>>>> kernel. Instead move other MADV_ flags to make them more compatible to
>>>> other linux architectures.
>>>
>>> Changing the unimplemented values seems fine, but how can it be OK to
>>> renumber MAP_GROWSUP, MADV_DONTDUMP and MADV_DODUMP?
>>
>> MAP_GROWSUP is new.
>> MAP_STACK changed, but doesn't seeem to be used inside the kernel anyway.
> 
> It may not be implemented in the kernel, but it is certainly used by
> userland:
> https://sources.debian.net/src/glibc/2.19-20/nptl/allocatestack.c/#L513

I knew this one, but didn't faced any problems.

Anyway, I will rework my patch and just drop the unnecessary MADV_xxxK_PAGES
flags.

Thanks!

Helge
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From - Thu Nov 08 21:38:04 2018
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Hi Linus,

please pull the latest patches for the parisc architecture for kernel v4.4 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.4-2

This patchset adds Huge Page and HUGETLBFS support for parisc.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (9):
      parisc: Fix wrong comment regarding first pmd entry flags
      parisc: Drop definition of start_thread_som for HP-UX SOM binaries
      parisc: Drop unused MADV_xxxK_PAGES flags from asm/mman.h
      parisc: Add defines for Huge page support
      parisc: Initialize the fault vector earlier in the boot process.
      parisc: Increase initial kernel mapping to 32MB on 64bit kernel
      parisc: Use long branch to do_syscall_trace_exit
      parisc: Add Huge Page and HUGETLBFS support
      parisc: Map kernel text and data on huge pages

 arch/parisc/Kconfig                 |   3 +
 arch/parisc/include/asm/hugetlb.h   |  85 +++++++++++++++++++
 arch/parisc/include/asm/page.h      |  13 ++-
 arch/parisc/include/asm/pgalloc.h   |   2 +-
 arch/parisc/include/asm/pgtable.h   |  26 +++++-
 arch/parisc/include/asm/processor.h |  27 ------
 arch/parisc/include/uapi/asm/mman.h |  10 ---
 arch/parisc/kernel/asm-offsets.c    |   8 ++
 arch/parisc/kernel/entry.S          |  56 ++++++++-----
 arch/parisc/kernel/head.S           |   4 +-
 arch/parisc/kernel/setup.c          |  14 +++-
 arch/parisc/kernel/syscall.S        |   4 +-
 arch/parisc/kernel/traps.c          |  35 ++++----
 arch/parisc/kernel/vmlinux.lds.S    |   9 +-
 arch/parisc/mm/Makefile             |   1 +
 arch/parisc/mm/hugetlbpage.c        | 161 ++++++++++++++++++++++++++++++++++++
 arch/parisc/mm/init.c               |  40 ++++-----
 17 files changed, 382 insertions(+), 116 deletions(-)
 create mode 100644 arch/parisc/include/asm/hugetlb.h
 create mode 100644 arch/parisc/mm/hugetlbpage.c
--
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From - Thu Nov 08 21:38:04 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [GIT PULL] parisc huge page support for v4.4
Date: Tue, 24 Nov 2015 10:51:52 -0500 (EST)
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
To: Helge Deller <deller@gmx.de>
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On Sun, 22 Nov 2015, Helge Deller wrote:

> Hi Linus,
> 
> please pull the latest patches for the parisc architecture for kernel v4.4 from:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.4-2
> 
> This patchset adds Huge Page and HUGETLBFS support for parisc.
> 
> Thanks,
> Helge
> 
> ----------------------------------------------------------------
> Helge Deller (9):
>       parisc: Fix wrong comment regarding first pmd entry flags
>       parisc: Drop definition of start_thread_som for HP-UX SOM binaries
>       parisc: Drop unused MADV_xxxK_PAGES flags from asm/mman.h
>       parisc: Add defines for Huge page support
>       parisc: Initialize the fault vector earlier in the boot process.
>       parisc: Increase initial kernel mapping to 32MB on 64bit kernel
>       parisc: Use long branch to do_syscall_trace_exit
>       parisc: Add Huge Page and HUGETLBFS support
>       parisc: Map kernel text and data on huge pages
> 
>  arch/parisc/Kconfig                 |   3 +
>  arch/parisc/include/asm/hugetlb.h   |  85 +++++++++++++++++++
>  arch/parisc/include/asm/page.h      |  13 ++-
>  arch/parisc/include/asm/pgalloc.h   |   2 +-
>  arch/parisc/include/asm/pgtable.h   |  26 +++++-
>  arch/parisc/include/asm/processor.h |  27 ------
>  arch/parisc/include/uapi/asm/mman.h |  10 ---
>  arch/parisc/kernel/asm-offsets.c    |   8 ++
>  arch/parisc/kernel/entry.S          |  56 ++++++++-----
>  arch/parisc/kernel/head.S           |   4 +-
>  arch/parisc/kernel/setup.c          |  14 +++-
>  arch/parisc/kernel/syscall.S        |   4 +-
>  arch/parisc/kernel/traps.c          |  35 ++++----
>  arch/parisc/kernel/vmlinux.lds.S    |   9 +-
>  arch/parisc/mm/Makefile             |   1 +
>  arch/parisc/mm/hugetlbpage.c        | 161 ++++++++++++++++++++++++++++++++++++
>  arch/parisc/mm/init.c               |  40 ++++-----
>  17 files changed, 382 insertions(+), 116 deletions(-)
>  create mode 100644 arch/parisc/include/asm/hugetlb.h
>  create mode 100644 arch/parisc/mm/hugetlbpage.c
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Hi

Since the kernel 4.4-rc2 I'm getting frequent boot failures on PA-RISC. 
When I revert this patchset, the crashes are gone.

Mikulas


[    3.296666] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online
[    3.453332] Setting cache flush threshold to 65536 kB
[    3.519999] Not-handled unaligned insn 0x43ffff80
[    3.593332] Setting TLB flush threshold to 52 kB
[   12.069998] random: nonblocking pool is initialized
[   63.869993] INFO: rcu_sched self-detected stall on CPU
[   63.869993]  0-...: (17936 ticks this GP) idle=033/140000000000001/0 softirq=11/11 fqs=8965
[   63.869993]   (t=18000 jiffies g=-293 c=-294 q=0)
[   63.869993] Task dump for CPU 0:
[   63.869993] swapper/0       R  running task        0     1      0 0x00000004
[   63.869993] Backtrace:
[   63.869993]  [<00000000402149a4>] show_stack+0x14/0x20
[   63.869993]  [<000000004026807c>] sched_show_task+0x134/0x1d0
[   63.869993]  [<000000004026a96c>] dump_cpu_task+0x5c/0x78
[   63.869993]  [<000000004028cedc>] rcu_dump_cpu_stacks+0xfc/0x188
[   63.869993]  [<00000000402915b4>] rcu_check_callbacks+0x564/0x980
[   63.869993]  [<0000000040294034>] update_process_times+0x54/0xb0
[   63.869993]  [<0000000040215b2c>] timer_interrupt+0x19c/0x200
[   63.869993]  [<0000000040283de8>] handle_irq_event_percpu+0xa8/0x230
[   63.869993]  [<0000000040288efc>] handle_percpu_irq+0x9c/0xd0
[   63.869993]  [<00000000402831b8>] generic_handle_irq+0x40/0x50
[   63.869993]  [<0000000040216a00>] do_cpu_irq_mask+0x1b8/0x2a8
[   63.869993]  [<0000000040204074>] intr_return+0x0/0xc
[   63.869993]  [<00000000402a69dc>] smp_call_function_many+0x33c/0x3a0
[   63.869993]  [<00000000402a6cc4>] smp_call_function+0x3c/0x50
[   63.869993]  [<00000000402a6d38>] on_each_cpu+0x30/0x78
[   63.869993]  [<0000000040213a24>] flush_cache_all+0x24/0x30
[   63.869993]
[   63.873326] timer_interrupt(CPU 0): delayed! cycles 645CA37E rem 2BD984  next/now 1EE1C3D259/1EE197F8D5
(rs s
Resetting System.

[    3.283333] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online
[    3.436666] Setting cache flush threshold to 65536 kB
[    3.506666] Not-handled unaligned insn 0x43ffff80
[    3.506666] Setting TLB flush threshold to 176 kB
[    3.733332] SBA found Pluto 2.3 at 0xfffffffffed00000
[    3.873332] Unaligned handler failed, ret = -1
[    3.946666]       _______________________________
[    3.946666]      < Your System ate a SPARC! Gah! >
[    3.946666]       -------------------------------
[    3.946666]              \   ^__^
[    3.946666]                  (__)\       )\/\
[    3.946666]                   U  ||----w |
[    3.946666]                      ||     ||
[    4.359999] swapper/3 (pid 0): Unaligned data reference (code 28)
[    4.453332] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.4.0-rc2 #1
[    4.549999] task: 000000007fca6900 ti: 000000007fcf4000 task.ti: 000000007fcf4000
[   11.313332]
[   11.313332]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   11.313332] PSW: 00001000000001001111111100000000 Not tainted
** 10665 printk messages dropped ** [   11.333332]  [<000000004020fb60>] schedule_timeout+0x158/0x1f8
** 33399 printk messages dropped ** [   11.396665]  [<000000004020fb60>] schedule_timeout+0x158/0x1f8
** 33416 printk messages dropped ** [   11.469998]  [<00000000402630a4>] deactivate_task+0x84/0xa0
** 32424 printk messages dropped ** [   11.589998]  [<0000000040293f00>] msleep+0x38/0x50
** 29540 printk messages dropped ** [   11.709998]  [<0000000040293f00>] msleep+0x38/0x50
** 29550 printk messages dropped ** [   11.826665] Backtrace:
** 20455 printk messages dropped ** [   11.933332]  [<0000000040104f84>] smp_callin+0x1a4/0x1c0
** 31472 printk messages dropped ** [   12.036665]  [<0000000040293f00>] msleep+0x38/0x50
** 29553 printk messages dropped ** [   12.109998]  [<000000004026b5a0>] dequeue_task_idle+0x40/0x60
** 33125 printk messages dropped ** [   12.223332]  [<0000000040293f00>] msleep+0x38/0x50
** 29573 printk messages dropped ** [   12.326665]  [<000000004026b5a0>] dequeue_task_idle+0x40/0x60
** 33122 printk messages dropped ** [   12.446665]  [<000000004020ca64>] schedule+0x44/0xe8
** 30208 printk messages dropped ** [   12.553332]  [<000000004027a5a4>] cpu_startup_entry+0x13c/0x300
** 33750 printk messages dropped ** [   12.776665]  [<000000004020ca64>] schedule+0x44/0xe8
** 30188 printk messages dropped ** [   12.776665]  [<000000004027a5a4>] cpu_startup_entry+0x13c/0x300
** 33724 printk messages dropped ** [   13.006665] Backtrace:
** 20455 printk messages dropped ** [   13.006665]  [<0000000040104f84>] smp_callin+0x1a4/0x1c0
** 31454 printk messages dropped ** [   13.126665]  [<000000004021dd60>] handle_unaligned+0x908/0x958
** 33380 printk messages dropped ** [   13.199998]  [<0000000040215350>] handle_interruption+0x338/0x910
** 34395 printk messages dropped ** [   13.429998]  [<000000004020fc24>] schedule_timeout_uninterruptible+0x24/0x30
** 37954 printk messages dropped ** [   13.553331]  [<000000004026b5a0>] dequeue_task_idle+0x40/0x60
** 33004 printk messages dropped ** [   13.553331]  [<000000004020fc24>] schedule_timeout_uninterruptible+0x24/0x30
** 37859 printk messages dropped ** [   13.809998]  [<000000004020fc24>] schedule_timeout_uninterruptible+0x24/0x30
** 37918 printk messages dropped ** [   13.943331]  [<000000004020fb60>] schedule_timeout+0x158/0x1f8
** 33399 printk messages dropped ** [   13.943331]  [<000000004020fb60>] schedule_timeout+0x158/0x1f8
** 33391 printk messages dropped ** [   14.079998] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G      D         4.4.0-rc2 #1
** 39246 printk messages dropped ** [   14.319998]  [<000000004020ca64>] schedule+0x44/0xe8
** 30202 printk messages dropped ** [   14.319998]  [<0000000040293f00>] msleep+0x38/0x50
** 29526 printk messages dropped ** [   14.459998]  [<0000000040104f84>] smp_callin+0x1a4/0x1c0
** 31393 printk messages dropped ** [   14.566665]  [<0000000040214bd8>] die_if_kernel+0x220/0x298
** 32365 printk messages dropped ** [   14.673331]  [<0000000040104f84>] smp_callin+0x1a4/0x1c0
** 31414 printk messages dropped ** [   14.783331]  [<000000004021dd60>] handle_unaligned+0x908/0x958
** 33411 printk messages dropped ** [   14.899998]  [<000000004026b5a0>] dequeue_task_idle+0x40/0x60
** 33047 printk messages dropped ** [   15.013331]  [<000000004021dd60>] handle_unaligned+0x908/0x958
** 33387 printk messages dropped ** [   15.133331] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G      D         4.4.0-rc2 #1
** 39268 printk messages dropped ** [   15.369998]  [<000000004020fc24>] schedule_timeout_uninterruptible+0x24/0x30
** 37924 printk messages dropped ** [   15.509998]  [<000000004023e5d0>] irq_exit+0x58/0xa0
** 30079 printk messages dropped ** [   15.509998]  [<000000004023e5d0>] irq_exit+0x58/0xa0
** 30107 printk messages dropped ** [   15.646665]  [<00000000402149a4>] show_stack+0x14/0x20
** 30817 printk messages dropped ** [   15.753331] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G      D         4.4.0-rc2 #1
** 39240 printk messages dropped ** [   15.969998] Backtrace:
** 20424 printk messages dropped ** [   15.969998]  [<000000004020c438>] __schedule+0xe8/0x560
** 31127 printk messages dropped ** [   16.109998]  [<000000004023e5d0>] irq_exit+0x58/0xa0
** 30177 printk [   16.1[<00000083331]  00402153[<00000050>] han00402153dle_inte50>] hanrruptiondle_inte+0x338/0rruptionx910
+0x338/00>] handx910
le_unali[   16.1gned+0x983331]  08/0x958[<000000
004023e5d0>] irq_exit+0x58/0xa0
[   16.183331]  [<0000000040204074>] intr_return+0x0/0xc
[   16.183331]  [<000000004027a5a4>] cpu_startup_entry+0x13c/0x300
[   16.183331]  [<0000000040104f84>] smp_callin+0x1a4/0x1c0
[   16.183331]
[   16.183331] bad: scheduling from the idle thread!
[   16.183331] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G      D         4.4.0-rc2 #1
[   16.183331] Backtrace:
[   16.183331]  [<00000000402149a4>] show_stack+0x14/0x20
[   16.183331]  [<0000000040410c18>] dump_stack+0x88/0x100
[   16.183331]  [<000000004026b5a0>] dequeue_task_idle+0x40/0x60
[   16.183331]  [<00000000402630a4>] deactivate_task+0x84/0xa0
[   16.183331]  [<000000004020c438>] __schedule+0xe8/0x560
[   16.183331]  [<000000004020ca64>] schedule+0x44/0xe8
[   16.183331]  [<000000004020fb60>] schedule_timeout+0x158/0x1f8
[   16.183331]  [<000000004020fc24>] schedule_timeout_uninterruptible+0x24/0x30
[   16.183331]  [<0000000040293f00>] msleep+0x38/0x50
[   16.183331]  [<0000000040214bd8>] die_if_kernel+0x220/0x298
[   16.183331]  [<000000004021dd60>] handle_unaligned+0x908/0x958
[   16.183331]  [<0000000040215350>] handle_interruption+0x338/0x910
[   16.183331]  [<000000004023e5d0>] irq_exit+0x58/0xa0
[   16.183331]  [<0000000040204074>] intr_return+0x0/0xc
[   16.183331]  [<000000004027a5a4>] cpu_startup_entry+0x13c/0x300
[   16.183331]  [<0000000040104f84>] smp_callin+0x1a4/0x1c0
[   16.183331]

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Subject: Re: [GIT PULL] parisc huge page support for v4.4
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On 24.11.2015 16:51, Mikulas Patocka wrote:
> On Sun, 22 Nov 2015, Helge Deller wrote:
>> please pull the latest patches for the parisc architecture for kernel v4.4 from:
>>
>>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.4-2
>>
>> This patchset adds Huge Page and HUGETLBFS support for parisc.
>>
>> Thanks,
>> Helge
>>
>> ----------------------------------------------------------------
>> Helge Deller (9):
>>       parisc: Fix wrong comment regarding first pmd entry flags
>>       parisc: Drop definition of start_thread_som for HP-UX SOM binaries
>>       parisc: Drop unused MADV_xxxK_PAGES flags from asm/mman.h
>>       parisc: Add defines for Huge page support
>>       parisc: Initialize the fault vector earlier in the boot process.
>>       parisc: Increase initial kernel mapping to 32MB on 64bit kernel
>>       parisc: Use long branch to do_syscall_trace_exit
>>       parisc: Add Huge Page and HUGETLBFS support
>>       parisc: Map kernel text and data on huge pages
>>
>>  arch/parisc/Kconfig                 |   3 +
>>  arch/parisc/include/asm/hugetlb.h   |  85 +++++++++++++++++++
>>  arch/parisc/include/asm/page.h      |  13 ++-
>>  arch/parisc/include/asm/pgalloc.h   |   2 +-
>>  arch/parisc/include/asm/pgtable.h   |  26 +++++-
>>  arch/parisc/include/asm/processor.h |  27 ------
>>  arch/parisc/include/uapi/asm/mman.h |  10 ---
>>  arch/parisc/kernel/asm-offsets.c    |   8 ++
>>  arch/parisc/kernel/entry.S          |  56 ++++++++-----
>>  arch/parisc/kernel/head.S           |   4 +-
>>  arch/parisc/kernel/setup.c          |  14 +++-
>>  arch/parisc/kernel/syscall.S        |   4 +-
>>  arch/parisc/kernel/traps.c          |  35 ++++----
>>  arch/parisc/kernel/vmlinux.lds.S    |   9 +-
>>  arch/parisc/mm/Makefile             |   1 +
>>  arch/parisc/mm/hugetlbpage.c        | 161 ++++++++++++++++++++++++++++++++++++
>>  arch/parisc/mm/init.c               |  40 ++++-----
>>  17 files changed, 382 insertions(+), 116 deletions(-)
>>  create mode 100644 arch/parisc/include/asm/hugetlb.h
>>  create mode 100644 arch/parisc/mm/hugetlbpage.c
> 
> Hi
> 
> Since the kernel 4.4-rc2 I'm getting frequent boot failures on PA-RISC. 
> When I revert this patchset, the crashes are gone.

> [    3.296666] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online

Hi Mikulas,

Yes, I've seen this as well.
It affects only the PA8900 CPUs, while all PA8500-PA8700 machines seem to work fine.
I do have a temporary 3-line patch to avoid the crashes which I'll push to my tree shortly.
I'm still investigating why it only affects the PA8900 CPUs, but I assume
it's related to the cache aliasing of those CPUs.
I'll keep you updated.

Helge
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Subject: Re: [GIT PULL] parisc huge page support for v4.4
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On Tue, 24 Nov 2015, Helge Deller wrote:

> > Hi
> > 
> > Since the kernel 4.4-rc2 I'm getting frequent boot failures on PA-RISC. 
> > When I revert this patchset, the crashes are gone.
> 
> > [    3.296666] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online
> 
> Hi Mikulas,
> 
> Yes, I've seen this as well.
> It affects only the PA8900 CPUs, while all PA8500-PA8700 machines seem to work fine.
> I do have a temporary 3-line patch to avoid the crashes which I'll push to my tree shortly.
> I'm still investigating why it only affects the PA8900 CPUs, but I assume
> it's related to the cache aliasing of those CPUs.
> I'll keep you updated.
> 
> Helge

The PA-RISC specification doesn't allow aliasing on non-equaivalent 
addresses. Can the kernel map a piece of kernel data to other virtual 
address? If yes, we can't use big pages to map kernel data.

Mikulas
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* Mikulas Patocka <mpatocka@redhat.com>:
> 
> 
> On Tue, 24 Nov 2015, Helge Deller wrote:
> 
> > > Hi
> > > 
> > > Since the kernel 4.4-rc2 I'm getting frequent boot failures on PA-RISC. 
> > > When I revert this patchset, the crashes are gone.
> > 
> > > [    3.296666] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online
> > 
> > Hi Mikulas,
> > 
> > Yes, I've seen this as well.
> > It affects only the PA8900 CPUs, while all PA8500-PA8700 machines seem to work fine.
> > I do have a temporary 3-line patch to avoid the crashes which I'll push to my tree shortly.
> > I'm still investigating why it only affects the PA8900 CPUs, but I assume
> > it's related to the cache aliasing of those CPUs.
> > I'll keep you updated.
> > 
> > Helge
> 
> The PA-RISC specification doesn't allow aliasing on non-equaivalent 
> addresses. Can the kernel map a piece of kernel data to other virtual 
> address? If yes, we can't use big pages to map kernel data.

Can you please try the two patches below?
The first one disables mapping kernel text/data on huge pages on
PA8800/PA8900 CPUs. Patch works for me on my Mako PA8800.

Independend of my huge page patch the second patch disables the tlb
flush optimization we added earlier. It seems calling flush_tlb_all()
doesn't reliably flushes tlbs on all CPUs so it's better to fall back to
the loop implementation.

Helge


diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1b366c4..958b7f36 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -475,19 +475,22 @@ static void __init map_pages(unsigned long start_vaddr,
 					pte =  __mk_pte(address, pgprot);
 				else if (parisc_text_address(vaddr)) {
 					pte = __mk_pte(address, PAGE_KERNEL_EXEC);
-					if (address >= ro_start && address < kernel_end)
+					if (address >= ro_start && address < kernel_end
+					    && !parisc_requires_coherency())
 						pte = pte_mkhuge(pte);
 				}
 				else
 #if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
 				if (address >= ro_start && address < ro_end) {
 					pte = __mk_pte(address, PAGE_KERNEL_EXEC);
-					pte = pte_mkhuge(pte);
+					if (!parisc_requires_coherency())
+						pte = pte_mkhuge(pte);
 				} else
 #endif
 				{
 					pte = __mk_pte(address, pgprot);
-					if (address >= ro_start && address < kernel_end)
+					if (address >= ro_start && address < kernel_end
+					    && !parisc_requires_coherency())
 						pte = pte_mkhuge(pte);
 				}
 
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index cda6dbb..80ced95 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -445,7 +445,7 @@ int __flush_tlb_range(unsigned long sid, unsigned long start,
 	unsigned long flags, size;
 
 	size = (end - start);
-	if (size >= parisc_tlb_flush_threshold) {
+	if (0 && size >= parisc_tlb_flush_threshold) {
 		flush_tlb_all();
 		return 1;
 	}

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On Tue, 24 Nov 2015, Helge Deller wrote:

> * Mikulas Patocka <mpatocka@redhat.com>:
> > 
> > 
> > On Tue, 24 Nov 2015, Helge Deller wrote:
> > 
> > > > Hi
> > > > 
> > > > Since the kernel 4.4-rc2 I'm getting frequent boot failures on PA-RISC. 
> > > > When I revert this patchset, the crashes are gone.
> > > 
> > > > [    3.296666] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online
> > > 
> > > Hi Mikulas,
> > > 
> > > Yes, I've seen this as well.
> > > It affects only the PA8900 CPUs, while all PA8500-PA8700 machines seem to work fine.
> > > I do have a temporary 3-line patch to avoid the crashes which I'll push to my tree shortly.
> > > I'm still investigating why it only affects the PA8900 CPUs, but I assume
> > > it's related to the cache aliasing of those CPUs.
> > > I'll keep you updated.
> > > 
> > > Helge
> > 
> > The PA-RISC specification doesn't allow aliasing on non-equaivalent 
> > addresses. Can the kernel map a piece of kernel data to other virtual 
> > address? If yes, we can't use big pages to map kernel data.
> 
> Can you please try the two patches below?
> The first one disables mapping kernel text/data on huge pages on
> PA8800/PA8900 CPUs. Patch works for me on my Mako PA8800.
> 
> Independend of my huge page patch the second patch disables the tlb
> flush optimization we added earlier. It seems calling flush_tlb_all()
> doesn't reliably flushes tlbs on all CPUs so it's better to fall back to
> the loop implementation.
> 
> Helge

The kernel with these patches works fine so far.

Mikulas
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Show more debug info about space registers and TLB
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 7eb616e..451906d 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -63,7 +63,7 @@ struct pdc_tlb_cf {		/* for PDC_CACHE (I/D-TLB's) */
 		tc_page : 1,	/* 0 = 2K page-size-machine, 1 = 4k page size */
 		tc_cst  : 3,	/* 0 = incoherent operations, else coherent operations */
 		tc_aid  : 5,	/* ITLB: width of access ids of processor (encoded!) */
-		tc_pad1 : 8;	/* ITLB: width of space-registers (encoded) */
+		tc_sr   : 8;	/* ITLB: width of space-registers (encoded) */
 };
 
 struct pdc_cache_info {		/* main-PDC_CACHE-structure (caches & TLB's) */
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index cda6dbb..32bc0bf 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -172,6 +172,24 @@ parisc_cache_init(void)
 		cache_info.ic_count,
 		cache_info.ic_loop);
 
+	printk("IT  base 0x%lx stride 0x%lx count 0x%lx loop 0x%lx off_base 0x%lx off_stride 0x%lx off_count 0x%lx\n",
+		cache_info.it_sp_base,
+		cache_info.it_sp_stride,
+		cache_info.it_sp_count,
+		cache_info.it_loop,
+		cache_info.it_off_base,
+		cache_info.it_off_stride,
+		cache_info.it_off_count);
+
+	printk("DT  base 0x%lx stride 0x%lx count 0x%lx loop 0x%lx off_base 0x%lx off_stride 0x%lx off_count 0x%lx\n",
+		cache_info.dt_sp_base,
+		cache_info.dt_sp_stride,
+		cache_info.dt_sp_count,
+		cache_info.dt_loop,
+		cache_info.dt_off_base,
+		cache_info.dt_off_stride,
+		cache_info.dt_off_count);
+
 	printk("ic_conf = 0x%lx  alias %d blk %d line %d shift %d\n",
 		*(unsigned long *) (&cache_info.ic_conf),
 		cache_info.ic_conf.cc_alias,
@@ -184,19 +202,19 @@ parisc_cache_init(void)
 		cache_info.ic_conf.cc_cst,
 		cache_info.ic_conf.cc_hv);
 
-	printk("D-TLB conf: sh %d page %d cst %d aid %d pad1 %d\n",
+	printk("D-TLB conf: sh %d page %d cst %d aid %d sr %d\n",
 		cache_info.dt_conf.tc_sh,
 		cache_info.dt_conf.tc_page,
 		cache_info.dt_conf.tc_cst,
 		cache_info.dt_conf.tc_aid,
-		cache_info.dt_conf.tc_pad1);
+		cache_info.dt_conf.tc_sr);
 
-	printk("I-TLB conf: sh %d page %d cst %d aid %d pad1 %d\n",
+	printk("I-TLB conf: sh %d page %d cst %d aid %d sr %d\n",
 		cache_info.it_conf.tc_sh,
 		cache_info.it_conf.tc_page,
 		cache_info.it_conf.tc_cst,
 		cache_info.it_conf.tc_aid,
-		cache_info.it_conf.tc_pad1);
+		cache_info.it_conf.tc_sr);
 #endif
 
 	split_tlb = 0;
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When using the Promise TX2+ SATA controller on PA-RISC, the system often
crashes with kernel panic, for example just writing data with the dd
utility will make it crash.

Kernel panic - not syncing: drivers/parisc/sba_iommu.c: I/O MMU @ 000000000000a000 is out of mapping resources

CPU: 0 PID: 18442 Comm: mkspadfs Not tainted 4.4.0-rc2 #2
Backtrace:
 [<000000004021497c>] show_stack+0x14/0x20
 [<0000000040410bf0>] dump_stack+0x88/0x100
 [<000000004023978c>] panic+0x124/0x360
 [<0000000040452c18>] sba_alloc_range+0x698/0x6a0
 [<0000000040453150>] sba_map_sg+0x260/0x5b8
 [<000000000c18dbb4>] ata_qc_issue+0x264/0x4a8 [libata]
 [<000000000c19535c>] ata_scsi_translate+0xe4/0x220 [libata]
 [<000000000c19a93c>] ata_scsi_queuecmd+0xbc/0x320 [libata]
 [<0000000040499bbc>] scsi_dispatch_cmd+0xfc/0x130
 [<000000004049da34>] scsi_request_fn+0x6e4/0x970
 [<00000000403e95a8>] __blk_run_queue+0x40/0x60
 [<00000000403e9d8c>] blk_run_queue+0x3c/0x68
 [<000000004049a534>] scsi_run_queue+0x2a4/0x360
 [<000000004049be68>] scsi_end_request+0x1a8/0x238
 [<000000004049de84>] scsi_io_completion+0xfc/0x688
 [<0000000040493c74>] scsi_finish_command+0x17c/0x1d0

The cause of the crash is not exhaustion of the IOMMU space, there is
plenty of free pages. The function sba_alloc_range is called with size
0x11000, thus the pages_needed variable is 0x11. The function
sba_search_bitmap is called with bits_wanted 0x11 and boundary size is
0x10 (because dma_get_seg_boundary(dev) returns 0xffff).

The function sba_search_bitmap attempts to allocate 17 pages that must not
cross 16-page boundary - it can't satisfy this requirement
(iommu_is_span_boundary always returns true) and fails even if there are
many free entries in the IOMMU space.

How did it happen that we try to allocate 17 pages that don't cross
16-page boundary? The cause is in the function iommu_coalesce_chunks. This
function tries to coalesce adjacent entries in the scatterlist. The
function does several checks if it may coalesce one entry with the next,
one of those checks is this:

	if (startsg->length + dma_len > max_seg_size)
		break;

When it finishes coalescing adjacent entries, it allocates the mapping:

sg_dma_len(contig_sg) = dma_len;
dma_len = ALIGN(dma_len + dma_offset, IOVP_SIZE);
sg_dma_address(contig_sg) =
	PIDE_FLAG
	| (iommu_alloc_range(ioc, dev, dma_len) << IOVP_SHIFT)
	| dma_offset;

It is possible that (startsg->length + dma_len > max_seg_size) is false
(we are just near the 0x10000 max_seg_size boundary), so the funcion
decides to coalesce this entry with the next entry. When the coalescing
succeeds, the function performs
	dma_len = ALIGN(dma_len + dma_offset, IOVP_SIZE);
And now, because of non-zero dma_offset, dma_len is greater than 0x10000.
iommu_alloc_range (a pointer to sba_alloc_range) is called and it attempts
to allocate 17 pages for a device that must not cross 16-page boundary.

To fix the bug, we must make sure that dma_len after addition of
dma_offset and alignment doesn't cross the segment boundary. I.e. change
	if (startsg->length + dma_len > max_seg_size)
		break;
to
	if (ALIGN(dma_len + dma_offset + startsg->length, IOVP_SIZE) > max_seg_size)
		break;

This patch makes this change (it precalculates max_seg_boundary at the
beginning of the function iommu_coalesce_chunks). I also added a check
that the mapping length doesn't exceed dma_get_seg_boundary(dev) (it is
not needed for Promise TX2+ SATA, but it may be needed for other devices
that have dma_get_seg_boundary lower than dma_get_max_seg_size).

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org

---
 drivers/parisc/iommu-helpers.h |   15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

Index: linux-4.4-rc3/drivers/parisc/iommu-helpers.h
===================================================================
--- linux-4.4-rc3.orig/drivers/parisc/iommu-helpers.h	2015-11-30 17:52:10.000000000 +0100
+++ linux-4.4-rc3/drivers/parisc/iommu-helpers.h	2015-11-30 20:19:53.000000000 +0100
@@ -104,7 +104,11 @@ iommu_coalesce_chunks(struct ioc *ioc, s
 	struct scatterlist *contig_sg;	   /* contig chunk head */
 	unsigned long dma_offset, dma_len; /* start/len of DMA stream */
 	unsigned int n_mappings = 0;
-	unsigned int max_seg_size = dma_get_max_seg_size(dev);
+	unsigned int max_seg_size = min(dma_get_max_seg_size(dev),
+					(unsigned)DMA_CHUNK_SIZE);
+	unsigned int max_seg_boundary = dma_get_seg_boundary(dev) + 1;
+	if (max_seg_boundary)	/* check if the addition above didn't overflow */
+		max_seg_size = min(max_seg_size, max_seg_boundary);
 
 	while (nents > 0) {
 
@@ -138,14 +142,11 @@ iommu_coalesce_chunks(struct ioc *ioc, s
 
 			/*
 			** First make sure current dma stream won't
-			** exceed DMA_CHUNK_SIZE if we coalesce the
+			** exceed max_seg_size if we coalesce the
 			** next entry.
 			*/   
-			if(unlikely(ALIGN(dma_len + dma_offset + startsg->length,
-					    IOVP_SIZE) > DMA_CHUNK_SIZE))
-				break;

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There are no callers of pcibios_init_bus(), so remove it.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/parisc/kernel/pci.c |   18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 64f2764..c99f3dd 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -171,24 +171,6 @@ void pcibios_set_master(struct pci_dev *dev)
 }
 
 
-void __init pcibios_init_bus(struct pci_bus *bus)
-{
-	struct pci_dev *dev = bus->self;
-	unsigned short bridge_ctl;
-
-	/* We deal only with pci controllers and pci-pci bridges. */
-	if (!dev || (dev->class >> 8) != PCI_CLASS_BRIDGE_PCI)
-		return;
-
-	/* PCI-PCI bridge - set the cache line and default latency
-	   (32) for primary and secondary buses. */
-	pci_write_config_byte(dev, PCI_SEC_LATENCY_TIMER, 32);
-
-	pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &bridge_ctl);
-	bridge_ctl |= PCI_BRIDGE_CTL_PARITY | PCI_BRIDGE_CTL_SERR;
-	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bridge_ctl);
-}

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On 01.12.2015 17:41, Bjorn Helgaas wrote:
> There are no callers of pcibios_init_bus(), so remove it.

True, pcibios_init_bus() isn't called anywhere, so it should be removed.

But I wonder if we might need to initialize latency and parity for PCI-PCI
bridges somewhere else then?
In one of my machines I have a i960 based RAID controller which isn't working
yet (I think it's internally based on a PCI-PCI bridge), and maybe this
is the reason it doesn't work? I will need to test it (e.g. firmware doesn't
fully initializes PCI-PCI bridges, which is why this code was added once).

Helge
 
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
> ---
>  arch/parisc/kernel/pci.c |   18 ------------------
>  1 file changed, 18 deletions(-)
> 
> diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
> index 64f2764..c99f3dd 100644
> --- a/arch/parisc/kernel/pci.c
> +++ b/arch/parisc/kernel/pci.c
> @@ -171,24 +171,6 @@ void pcibios_set_master(struct pci_dev *dev)
>  }
>  
>  
> -void __init pcibios_init_bus(struct pci_bus *bus)
> -{
> -	struct pci_dev *dev = bus->self;
> -	unsigned short bridge_ctl;
> -
> -	/* We deal only with pci controllers and pci-pci bridges. */
> -	if (!dev || (dev->class >> 8) != PCI_CLASS_BRIDGE_PCI)
> -		return;
> -
> -	/* PCI-PCI bridge - set the cache line and default latency
> -	   (32) for primary and secondary buses. */
> -	pci_write_config_byte(dev, PCI_SEC_LATENCY_TIMER, 32);
> -
> -	pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &bridge_ctl);
> -	bridge_ctl |= PCI_BRIDGE_CTL_PARITY | PCI_BRIDGE_CTL_SERR;
> -	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bridge_ctl);
> -}
> -
>  /*
>   * pcibios align resources() is called every time generic PCI code
>   * wants to generate a new address. The process of looking for
> 

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On Tue, Dec 1, 2015 at 12:44 PM, Helge Deller <deller@gmx.de> wrote:
> On 01.12.2015 17:41, Bjorn Helgaas wrote:
>> There are no callers of pcibios_init_bus(), so remove it.
>
> True, pcibios_init_bus() isn't called anywhere, so it should be removed.
>
> But I wonder if we might need to initialize latency and parity for PCI-PCI
> bridges somewhere else then?

pcibios_fixup_bus() appears to do that...but I don't know the call chain.
I used cscope to look for PCI_BRIDGE_CTL_PARITY.

> In one of my machines I have a i960 based RAID controller which isn't working
> yet (I think it's internally based on a PCI-PCI bridge), and maybe this
> is the reason it doesn't work? I will need to test it (e.g. firmware doesn't
> fully initializes PCI-PCI bridges, which is why this code was added once).

If lspci doesn't show the PCI-PCI bridge, the i960 RAID card is using
that internally.
parisc (and any other architecture) should discover and configure all
PCI-PCI bridges already.

I know it did for the "multifunction" cards I had available 10 years ago.

cheers,
grant
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On 01.12.2015 23:02, Grant Grundler wrote:
> On Tue, Dec 1, 2015 at 12:44 PM, Helge Deller <deller@gmx.de> wrote:
>> On 01.12.2015 17:41, Bjorn Helgaas wrote:
>>> There are no callers of pcibios_init_bus(), so remove it.
>>
>> True, pcibios_init_bus() isn't called anywhere, so it should be removed.
>>
>> But I wonder if we might need to initialize latency and parity for PCI-PCI
>> bridges somewhere else then?
> 
> pcibios_fixup_bus() appears to do that...but I don't know the call chain.
> I used cscope to look for PCI_BRIDGE_CTL_PARITY.
> 
>> In one of my machines I have a i960 based RAID controller which isn't working
>> yet (I think it's internally based on a PCI-PCI bridge), and maybe this
>> is the reason it doesn't work? I will need to test it (e.g. firmware doesn't
>> fully initializes PCI-PCI bridges, which is why this code was added once).

machine model : 9000/800/L3000-8x
model name    : Marcato W+ (rp5470)

> If lspci doesn't show the PCI-PCI bridge, the i960 RAID card is using
> that internally.

lspci does see the PCI-PCI bridge:

50:00.0 PCI bridge: Intel Corporation 80960RP (i960RP) Microprocessor/Bridge (rev 02) (prog-if 00 [Normal decode])
        Flags: medium devsel
        Bus: primary=50, secondary=51, subordinate=51, sec-latency=0
        I/O behind bridge: 00000000-00000fff
        Memory behind bridge: 94400000-944fffff
        Prefetchable memory behind bridge: 94500000-945fffff
        Capabilities: [68] Power Management version 2

50:00.1 I2O: Intel Corporation 80960RP (i960RP) Microprocessor (rev 02) (prog-if 01)
        Subsystem: Hewlett-Packard Company Device 1228
        Flags: medium devsel, IRQ 71
        Memory at ffffffff94000000 (32-bit, prefetchable) [disabled] [size=4M]
        [virtual] Expansion ROM at ffffffff94600000 [disabled] [size=32K]
        Capabilities: [80] Power Management version 2


sec-latency is listed in the lspci output above as "sec-latency=0", so do we maybe need to add this part somewhere ?
-	/* PCI-PCI bridge - set the cache line and default latency
-	   (32) for primary and secondary buses. */
-	pci_write_config_byte(dev, PCI_SEC_LATENCY_TIMER, 32);

> parisc (and any other architecture) should discover and configure all
> PCI-PCI bridges already.
> I know it did for the "multifunction" cards I had available 10 years ago.

Boot log shows:
[    9.408000] Elroy version TR4.0 (0x5) found at 0xffffffff9fff4000
[    9.564000] LBA: Not a C8000 system - not extending LMMIO range.
[    9.568000] LBA: Not registering GMMIO space [mem 0xfffffff504000000-0xfffffff57fffffff]
[    9.684000] LBA 0:10: PCI host bridge to bus 0000:50
[    9.820000] pci_bus 0000:50: root bus resource [io  0x80000-0x8ffff] (bus address [0x0000-0xffff])
[    9.956000] pci_bus 0000:50: root bus resource [mem 0xffffffff94000000-0xffffffff95ffffff] (bus address [0x94000000-0x95ffffff])
[   10.092000] pci_bus 0000:50: root bus resource [bus 50-57]
[   10.096000] pci 0000:50:00.0: [8086:0964] type 01 class 0x060400
[   10.096000] pci 0000:50:00.1: [8086:1960] type 00 class 0x0e0001
[   10.096000] pci 0000:50:00.1: reg 0x10: [mem 0x00000000-0x003fffff pref]
[   10.096000] pci 0000:50:00.1: reg 0x30: [mem 0x00000000-0x00007fff pref]
[   10.096000] pci_bus 0000:51: busn_res: can not insert [bus 51-ff] under [bus 50-57] (conflicts with (null) [bus 50-57])
[   10.096000] pci 0000:50:00.0: PCI bridge to [bus 51-ff]
[   10.232000] pci 0000:50:00.0:   bridge window [io  0x80000-0x80fff]
[   10.232000] pci 0000:50:00.0:   bridge window [mem 0x00000000-0x000fffff]
[   10.232000] pci 0000:50:00.0:   bridge window [mem 0x00000000-0x000fffff pref]
[   10.232000] pci 0000:50:00.0: can't claim BAR 14 [mem 0x00000000-0x000fffff]: no compatible bridge window
[   10.372000] pci 0000:50:00.0: can't claim BAR 15 [mem 0x00000000-0x000fffff pref]: no compatible bridge window
[   10.508000] pci 0000:50:00.0: can't claim BAR 16 [??? 0x00000000 flags 0x0]: no compatible bridge window
[   10.648000] pci_bus 0000:51: busn_res: [bus 51-ff] end is updated to 51
[   10.648000] pci 0000:50:00.0: BAR 16: [??? 0x00000000 flags 0x20000000] has bogus alignment
[   10.784000] pci 0000:50:00.1: BAR 0: assigned [mem 0xffffffff94000000-0xffffffff943fffff pref]
[   10.920000] pci 0000:50:00.0: BAR 14: assigned [mem 0xffffffff94400000-0xffffffff944fffff]
[   11.060000] pci 0000:50:00.0: BAR 15: assigned [mem 0xffffffff94500000-0xffffffff945fffff pref]
[   11.060000] pci 0000:50:00.1: BAR 6: assigned [mem 0xffffffff94600000-0xffffffff94607fff pref]
[   11.200000] pci 0000:50:00.0: PCI bridge to [bus 51]
[   11.336000] pci 0000:50:00.0:   bridge window [io  0x80000-0x80fff]
[   11.336000] pci 0000:50:00.0:   bridge window [mem 0xffffffff94400000-0xffffffff944fffff]
[   11.472000] pci 0000:50:00.0:   bridge window [mem 0xffffffff94500000-0xffffffff945fffff pref]

Helge

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From - Thu Nov 08 21:38:05 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 3/3] parisc: protect huge pte changes with spinlocks
Date: Sun,  6 Dec 2015 21:43:33 +0100
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To: linux-parisc@vger.kernel.org
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Protect all changes of huge page pte entries with purge_tlb_start() and
purge_tlb_end() spinlocks.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/hugetlb.h | 20 +++----------
 arch/parisc/mm/hugetlbpage.c      | 60 +++++++++++++++++++++++++++++++--------
 2 files changed, 52 insertions(+), 28 deletions(-)

diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 7d56a9c..a65d888 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -54,24 +54,12 @@ static inline pte_t huge_pte_wrprotect(pte_t pte)
 	return pte_wrprotect(pte);
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	pte_t old_pte = *ptep;
-	set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
-}
+void huge_ptep_set_wrprotect(struct mm_struct *mm,
+					   unsigned long addr, pte_t *ptep);
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	int changed = !pte_same(*ptep, pte);
-	if (changed) {
-		set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
-		flush_tlb_page(vma, addr);
-	}
-	return changed;
-}
+					     pte_t pte, int dirty);
 
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
diff --git a/arch/parisc/mm/hugetlbpage.c b/arch/parisc/mm/hugetlbpage.c
index f6fdc77..54ba392 100644
--- a/arch/parisc/mm/hugetlbpage.c
+++ b/arch/parisc/mm/hugetlbpage.c
@@ -105,15 +105,13 @@ static inline void purge_tlb_entries_huge(struct mm_struct *mm, unsigned long ad
 	addr |= _HUGE_PAGE_SIZE_ENCODING_DEFAULT;
 
 	for (i = 0; i < (1 << (HPAGE_SHIFT-REAL_HPAGE_SHIFT)); i++) {
-		mtsp(mm->context, 1);
-		pdtlb(addr);
-		if (unlikely(split_tlb))
-			pitlb(addr);
+		purge_tlb_entries(mm, addr);
 		addr += (1UL << REAL_HPAGE_SHIFT);
 	}
 }
 
-void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+/* __set_huge_pte_at() must be called holding the pa_tlb_lock. */
+static void __set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t entry)
 {
 	unsigned long addr_start;
@@ -123,14 +121,9 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 	addr_start = addr;
 
 	for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
-		/* Directly write pte entry.  We could call set_pte_at(mm, addr, ptep, entry)
-		 * instead, but then we get double locking on pa_tlb_lock. */
-		*ptep = entry;
+		set_pte(ptep, entry);
 		ptep++;
 
-		/* Drop the PAGE_SIZE/non-huge tlb entry */
-		purge_tlb_entries(mm, addr);
-
 		addr += PAGE_SIZE;
 		pte_val(entry) += PAGE_SIZE;
 	}
@@ -138,18 +131,61 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 	purge_tlb_entries_huge(mm, addr_start);
 }
 
+void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		     pte_t *ptep, pte_t entry)
+{
+	unsigned long flags;
+
+	purge_tlb_start(flags);
+	__set_huge_pte_at(mm, addr, ptep, entry);
+	purge_tlb_end(flags);
+}
+
 
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep)
 {
+	unsigned long flags;
 	pte_t entry;
 
+	purge_tlb_start(flags);
 	entry = *ptep;
-	set_huge_pte_at(mm, addr, ptep, __pte(0));
+	__set_huge_pte_at(mm, addr, ptep, __pte(0));
+	purge_tlb_end(flags);
 
 	return entry;
 }
 
+
+void huge_ptep_set_wrprotect(struct mm_struct *mm,
+				unsigned long addr, pte_t *ptep)
+{
+	unsigned long flags;
+	pte_t old_pte;
+
+	purge_tlb_start(flags);
+	old_pte = *ptep;
+	__set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
+	purge_tlb_end(flags);
+}
+
+int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+				unsigned long addr, pte_t *ptep,
+				pte_t pte, int dirty)
+{
+	unsigned long flags;
+	int changed;
+
+	purge_tlb_start(flags);
+	changed = !pte_same(*ptep, pte);
+	if (changed) {
+		__set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
+	}
+	purge_tlb_end(flags);
+	return changed;
+}
+
+
 int pmd_huge(pmd_t pmd)
 {
 	return 0;
-- 
2.1.0

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From - Thu Nov 08 21:38:05 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 2/3] parisc: Disable tlb flush optimization with huge pages
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It seems calling flush_tlb_all() doesn't reliable flush the tlb on all
CPUs. Disable it when used with huge pages.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/kernel/cache.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index cda6dbb..aee27e1 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -442,13 +442,15 @@ EXPORT_SYMBOL(copy_user_page);
 int __flush_tlb_range(unsigned long sid, unsigned long start,
 		      unsigned long end)
 {
-	unsigned long flags, size;
+	unsigned long flags;
 
-	size = (end - start);
+#if !defined(CONFIG_HUGETLB_PAGE)
+	unsigned long size = (end - start);
 	if (size >= parisc_tlb_flush_threshold) {
 		flush_tlb_all();
 		return 1;
 	}
+#endif
 
 	/* Purge TLB entries for small ranges using the pdtlb and
 	   pitlb instructions.  These instructions execute locally
-- 
2.1.0

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 1/3] parisc: Disable huge pages on Mako machines
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Mako-based machines (PA8800 and PA8900 CPUs) don't allow aliasing on
non-equaivalent addresses.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/pgtable.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index d8534f9..291cee2 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -372,7 +372,8 @@ static inline pte_t pte_mkspecial(pte_t pte)	{ return pte; }
  */
 #ifdef CONFIG_HUGETLB_PAGE
 #define pte_huge(pte)           (pte_val(pte) & _PAGE_HUGE)
-#define pte_mkhuge(pte)         (__pte(pte_val(pte) | _PAGE_HUGE))
+#define pte_mkhuge(pte)         (__pte(pte_val(pte) | \
+				 (parisc_requires_coherency() ? 0 : _PAGE_HUGE)))
 #else
 #define pte_huge(pte)           (0)
 #define pte_mkhuge(pte)         (pte)
-- 
2.1.0

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From - Thu Nov 08 21:38:05 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Wire up mlock2 syscall
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Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/uapi/asm/unistd.h | 3 ++-
 arch/parisc/kernel/syscall_table.S    | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 3317038..35bdccb 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -360,8 +360,9 @@
 #define __NR_execveat		(__NR_Linux + 342)
 #define __NR_membarrier		(__NR_Linux + 343)
 #define __NR_userfaultfd	(__NR_Linux + 344)
+#define __NR_mlock2		(__NR_Linux + 345)
 
-#define __NR_Linux_syscalls	(__NR_userfaultfd + 1)
+#define __NR_Linux_syscalls	(__NR_mlock2 + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 78c3ef8..d4ffcfb 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -440,6 +440,7 @@
 	ENTRY_COMP(execveat)
 	ENTRY_SAME(membarrier)
 	ENTRY_SAME(userfaultfd)
+	ENTRY_SAME(mlock2)		/* 345 */
 
 
 .ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
-- 
2.1.0

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From - Thu Nov 08 21:38:05 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH 1/3] parisc: Disable huge pages on Mako machines
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On 2015-12-06 3:43 PM, Helge Deller wrote:
> Mako-based machines (PA8800 and PA8900 CPUs) don't allow aliasing on
> non-equaivalent addresses.
Where do the non equivalent addresses come from?  When non equivalent 
mappings are
used in the kernel, we try pretty hard to ensure that the user mappings 
are flushed prior
to using the kernel mapping and then we flush the kernel mapping. 
There's also the
copy_user_page_asm and clear_user_page_asm routines that do copies and 
clear operations
using equivalent addresses.  I have some notes on the flushing needed 
using these routines.

One source of non equivalent addresses is the boundary between text and 
data in user
applications.  At one time, we had data immediately after the text and 
non equivalent
addresses.  Now, the start of data is rounded up so it starts on a 4K 
page boundary.
This may need adjustment for huge pages, but that implies a rebuild of 
user space.

I tend to think flush_tlb_all() doesn't work because the aliasing rules 
are being broken.
Disabling it causes a significant increase in time to flush the tlb.

Dave

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From - Thu Nov 08 21:38:05 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH 1/3] parisc: Disable huge pages on Mako machines
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Hi Dave,

On 07.12.2015 16:13, John David Anglin wrote:
> On 2015-12-06 3:43 PM, Helge Deller wrote:
>> Mako-based machines (PA8800 and PA8900 CPUs) don't allow aliasing on
>> non-equaivalent addresses.

> Where do the non equivalent addresses come from?

I think the main problem is the gateway page.
It's mapped at address 0 into userspace, but needs to jump into kernel space too.
This somehow breaks the huge page mapping.

> When non equivalent mappings are
> used in the kernel, we try pretty hard to ensure that the user mappings are flushed prior
> to using the kernel mapping and then we flush the kernel mapping. There's also the
> copy_user_page_asm and clear_user_page_asm routines that do copies and clear operations
> using equivalent addresses.  I have some notes on the flushing needed using these routines.

Yes.

> One source of non equivalent addresses is the boundary between text and data in user
> applications.  At one time, we had data immediately after the text and non equivalent
> addresses.  Now, the start of data is rounded up so it starts on a 4K page boundary.
> This may need adjustment for huge pages, but that implies a rebuild of user space.

No, userspace is not mapped in huge pages (but it could if someone gets libhugetlbfs working).
Right now, only hugepages would only be used for mmap() or shmget() memory if the flags
are given. 

> I tend to think flush_tlb_all() doesn't work because the aliasing rules are being broken.
> Disabling it causes a significant increase in time to flush the tlb.

Yes.
Right now the patches I sent don't seem to work as I expected them to do.
So, it's not what I currently tend to commit. I'm still working on it, but my time
is very limited, so it will need some time.
My current top goal is to push patches for kernel v4.4 which fixes the boot crash on Mako machines.

Helge
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From - Thu Nov 08 21:38:05 2018
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Subject: Re: [PATCH 1/3] parisc: Disable huge pages on Mako machines
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On 2015-12-07, at 4:19 PM, Helge Deller wrote:

>> Where do the non equivalent addresses come from?
> 
> I think the main problem is the gateway page.
> It's mapped at address 0 into userspace, but needs to jump into kernel space too.
> This somehow breaks the huge page mapping.

With latest debian kernel, I see:

000000004015d000 <linux_gateway_page>:
        ...

000000004015d0b0 <lws_entry>:

Possibly, this needs to be aligned to huge page boundary.

Dave
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From - Thu Nov 08 21:38:05 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Reduce overhead of parisc_requires_coherency()
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 7e759ec..2e674e1 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -311,18 +311,17 @@ extern unsigned long get_wchan(struct task_struct *p);
 #define cpu_relax()	barrier()
 #define cpu_relax_lowlatency() cpu_relax()
 
-/* Used as a macro to identify the combined VIPT/PIPT cached
- * CPUs which require a guarantee of coherency (no inequivalent
- * aliases with different data, whether clean or not) to operate */
-static inline int parisc_requires_coherency(void)
-{
+/*
+ * parisc_requires_coherency() is used to identify the combined VIPT/PIPT
+ * cached CPUs which require a guarantee of coherency (no inequivalent aliases
+ * with different data, whether clean or not) to operate
+ */
 #ifdef CONFIG_PA8X00
-	return (boot_cpu_data.cpu_type == mako) ||
-		(boot_cpu_data.cpu_type == mako2);
+extern int _parisc_requires_coherency;
+#define parisc_requires_coherency()	_parisc_requires_coherency
 #else
-	return 0;
+#define parisc_requires_coherency()	(0)
 #endif
-}
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index b68d977..e81ccf1 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -44,6 +44,10 @@
 
 struct system_cpuinfo_parisc boot_cpu_data __read_mostly;
 EXPORT_SYMBOL(boot_cpu_data);
+#ifdef CONFIG_PA8X00
+int _parisc_requires_coherency __read_mostly;
+EXPORT_SYMBOL(_parisc_requires_coherency);
+#endif
 
 DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
@@ -277,8 +281,12 @@ void __init collect_boot_cpu_data(void)
 	boot_cpu_data.cpu_type = parisc_get_cpu_type(boot_cpu_data.hversion);
 	boot_cpu_data.cpu_name = cpu_name_version[boot_cpu_data.cpu_type][0];
 	boot_cpu_data.family_name = cpu_name_version[boot_cpu_data.cpu_type][1];
-}
 
+#ifdef CONFIG_PA8X00
+	_parisc_requires_coherency = (boot_cpu_data.cpu_type == mako) ||
+				(boot_cpu_data.cpu_type == mako2);
+#endif
+}
 
 
 /**
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From - Thu Nov 08 21:38:06 2018
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From: Fabian Frederick <fabf@skynet.be>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.network
Subject: [PATCH V2 net-next] drivers/net: fix eisa_driver probe section mismatch
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Cc: "David S. Miller" <davem@davemloft.net>,
	Fabian Frederick <fabf@skynet.be>,
	Steffen Klassert <klassert@mathematik.tu-chemnitz.de>,
	Jaroslav Kysela <perex@perex.cz>, linux-parisc@vger.kernel.org
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Some eisa_driver structures used __init probe functions which generates
a warning and could crash if function is called after being deleted.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
---
V2:
	-Remove scsi occurence for net-next(suggested by David S. Miller)
	-Fix checkpatch warnings(space prohibited between function name
	 and parenthesis).

 drivers/net/ethernet/3com/3c509.c      | 2 +-
 drivers/net/ethernet/3com/3c59x.c      | 2 +-
 drivers/net/ethernet/dec/tulip/de4x5.c | 2 +-
 drivers/net/ethernet/hp/hp100.c        | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/3com/3c509.c b/drivers/net/ethernet/3com/3c509.c
index 4547a1b..7677c74 100644
--- a/drivers/net/ethernet/3com/3c509.c
+++ b/drivers/net/ethernet/3com/3c509.c
@@ -562,7 +562,7 @@ static void el3_common_remove (struct net_device *dev)
 }
 
 #ifdef CONFIG_EISA
-static int __init el3_eisa_probe (struct device *device)
+static int el3_eisa_probe(struct device *device)
 {
 	short i;
 	int ioaddr, irq, if_port;
diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index 2839af0..1c5f3b2 100644
--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -907,7 +907,7 @@ static struct eisa_device_id vortex_eisa_ids[] = {
 };
 MODULE_DEVICE_TABLE(eisa, vortex_eisa_ids);
 
-static int __init vortex_eisa_probe(struct device *device)
+static int vortex_eisa_probe(struct device *device)
 {
 	void __iomem *ioaddr;
 	struct eisa_device *edev;
diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index 8966f31..3acde3b 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -1990,7 +1990,7 @@ SetMulticastFilter(struct net_device *dev)
 
 static u_char de4x5_irq[] = EISA_ALLOWED_IRQ_LIST;
 
-static int __init de4x5_eisa_probe (struct device *gendev)
+static int de4x5_eisa_probe(struct device *gendev)
 {
 	struct eisa_device *edev;
 	u_long iobase;
diff --git a/drivers/net/ethernet/hp/hp100.c b/drivers/net/ethernet/hp/hp100.c
index ae6e30d..1d5c3e1 100644
--- a/drivers/net/ethernet/hp/hp100.c
+++ b/drivers/net/ethernet/hp/hp100.c
@@ -2843,7 +2843,7 @@ static void cleanup_dev(struct net_device *d)
 }
 
 #ifdef CONFIG_EISA
-static int __init hp100_eisa_probe (struct device *gendev)
+static int hp100_eisa_probe(struct device *gendev)
 {
 	struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private));
 	struct eisa_device *edev = to_eisa_device(gendev);
-- 
2.1.4

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From - Thu Nov 08 21:38:06 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc architecture fixes for v4.4
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Hi Linus,

please pull some fixes for the parisc architecture for v4.4 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.4-3

Fix the boot crash on Mako machines with Huge Pages, prevent a panic with SATA
controllers (and others) by correctly calculating the IOMMU space, hook up the
mlock2 syscall and drop unneeded code in the parisc pci code.

Thanks,
Helge

----------------------------------------------------------------
Bjorn Helgaas (1):
      parisc: Remove unused pcibios_init_bus()

Helge Deller (2):
      parisc: Wire up mlock2 syscall
      parisc: Disable huge pages on Mako machines

Mikulas Patocka (1):
      parisc iommu: fix panic due to trying to allocate too large region

 arch/parisc/include/asm/pgtable.h     |  3 ++-
 arch/parisc/include/uapi/asm/unistd.h |  3 ++-
 arch/parisc/kernel/pci.c              | 18 ------------------
 arch/parisc/kernel/syscall_table.S    |  1 +
 drivers/parisc/iommu-helpers.h        | 15 ++++++++-------
 5 files changed, 13 insertions(+), 27 deletions(-)
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From - Thu Nov 08 21:38:06 2018
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From - Thu Nov 08 21:38:06 2018
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From: David Miller <davem@davemloft.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.network
Subject: Re: [PATCH V2 net-next] drivers/net: fix eisa_driver probe section
 mismatch
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From: Fabian Frederick <fabf@skynet.be>
Date: Sat, 12 Dec 2015 18:24:38 +0100

> Some eisa_driver structures used __init probe functions which generates
> a warning and could crash if function is called after being deleted.
> 
> Signed-off-by: Fabian Frederick <fabf@skynet.be>

Applied, thanks.
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH 07/11] tty: serial: 8250: Fix line continuation warning
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
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	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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=46ixed checkpatch warning about an unnecessary line continuation in a
multi-line variable assignment.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 694b509..52c43da 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -249,8 +249,8 @@ static int __init hp300_8250_init(void)
=20
 		/* Memory mapped I/O */
 		uart.port.iotype =3D UPIO_MEM;
-		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ \
-			      | UPF_BOOT_AUTOCONF;
+		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ
+				| UPF_BOOT_AUTOCONF;
 		/* XXX - no interrupt support yet */
 		uart.port.irq =3D 0;
 		uart.port.uartclk =3D HPAPCI_BAUD_BASE * 16;
--=20
1.9.1


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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH 05/11] tty: serial: 8250: Remove else after return
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
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	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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This patch fixes checkpatch warnings about unnecessary else blocks afte=
r
return statements.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 41508a5..3bc0303 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -806,10 +806,10 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
=20
 	pi =3D (c & 0xff);
=20
-	if (pi =3D=3D 2) {
+	if (pi =3D=3D 2)
 		return 1;
-	} else if ((pi =3D=3D 0) &&
-			   (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) {
+
+	if ((pi =3D=3D 0) && (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) =
{
 		/* two possibilities: 0x30ps encodes number of parallel and
 		 * serial ports, or 0x1000 indicates *something*. This is not
 		 * immediately obvious, since the 2s1p+4s configuration seems
@@ -817,12 +817,11 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
 		 * advertising the same function 3 as the 4s+2s1p config.
 		 */
 		sub_serports =3D dev->subsystem_device & 0xf;
-		if (sub_serports > 0) {
+		if (sub_serports > 0)
 			return sub_serports;
-		} else {
-			dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on a=
mbiguous config.\n");
-			return 0;
-		}
+
+		dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on am=
biguous config.\n");
+		return 0;
 	}
=20
 	moan_device("unknown NetMos/Mostech program interface", dev);
--=20
1.9.1


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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: [PATCH 09/11] tty: serial: 8250: Fix multi-line strings
Date: Wed, 16 Dec 2015 16:36:15 +0100
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Approved: news@gmane.org
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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Merged user-visible multi-line strings into a single line according to =
the
Linux Kernel Coding Style, which allows user-visible strings to exceed =
the
maximum line length of 80 characters. The main reason for this is to
facilitate grepping for these strings.
However, some strings were ignored in this patch, because the use of
format specifiers breaks the ability to grep anyway.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 3 +--
 drivers/tty/serial/8250/serial_cs.c | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 3c29530..2b3731f 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1174,8 +1174,7 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
 module_param(share_irqs, uint, 0644);
-MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices"
-	" (unsafe)");
+MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices (unsafe)");
=20
 module_param(nr_uarts, uint, 0644);
 MODULE_PARM_DESC(nr_uarts, "Maximum number of UARTs supported. (1-" __=
MODULE_STRING(CONFIG_SERIAL_8250_NR_UARTS) ")");
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index a4bdcf6..65d341d 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -535,8 +535,7 @@ static int multi_config(struct pcmcia_device *link)
 		info->multi =3D 2;
 		if (pcmcia_loop_config(link, multi_config_check_notpicky,
 				       &base2)) {
-			dev_warn(&link->dev, "no usable port range "
-			       "found, giving up\n");
+			dev_warn(&link->dev, "no usable port range found, giving up\n");
 			return -ENODEV;
 		}
 	}
--=20
1.9.1

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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH 02/11] tty: serial: 8250: Fix indentation warnings
Date: Wed, 16 Dec 2015 16:36:08 +0100
Lines: 154
Approved: news@gmane.org
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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Checkpatch complains about incorrect indentation of switch/case stateme=
nts.
This patch fixes the corresponding warnings. Additionally some indentat=
ion
is changed to match the correct format specified in the Linux Kernel
Coding Style.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c  | 31 +++++++++++++++--------------=
--
 drivers/tty/serial/8250/8250_pnp.c  |  4 ++--
 drivers/tty/serial/8250/8250_port.c | 14 +++++++-------
 3 files changed, 24 insertions(+), 25 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index ed99fdf..41508a5 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -722,7 +722,7 @@ static int pci_ni8430_init(struct pci_dev *dev)
 	 */
 	pcibios_resource_to_bus(dev->bus, &region, &dev->resource[bar]);
 	device_window =3D ((region.start + MITE_IOWBSR1_WIN_OFFSET) & 0xfffff=
f00)
-	                | MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
+			| MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
 	writel(device_window, p + MITE_IOWBSR1);
=20
 	/* Set window access to go to RAMSEL IO address space */
@@ -843,17 +843,16 @@ static int pci_netmos_init(struct pci_dev *dev)
 		return 0;
=20
 	switch (dev->device) { /* FALLTHROUGH on all */
-		case PCI_DEVICE_ID_NETMOS_9904:
-		case PCI_DEVICE_ID_NETMOS_9912:
-		case PCI_DEVICE_ID_NETMOS_9922:
-		case PCI_DEVICE_ID_NETMOS_9900:
-			num_serial =3D pci_netmos_9900_numports(dev);
-			break;
+	case PCI_DEVICE_ID_NETMOS_9904:
+	case PCI_DEVICE_ID_NETMOS_9912:
+	case PCI_DEVICE_ID_NETMOS_9922:
+	case PCI_DEVICE_ID_NETMOS_9900:
+		num_serial =3D pci_netmos_9900_numports(dev);
+		break;
=20
-		default:
-			if (num_serial =3D=3D 0 ) {
-				moan_device("unknown NetMos/Mostech device", dev);
-			}
+	default:
+		if (num_serial =3D=3D 0)
+			moan_device("unknown NetMos/Mostech device", dev);
 	}
=20
 	if (num_serial =3D=3D 0)
@@ -1766,7 +1765,7 @@ xr17v35x_has_slave(struct serial_private *priv)
 	const int dev_id =3D priv->dev->device;
=20
 	return ((dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V4358) ||
-	        (dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
+		(dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
 }
=20
 static int
@@ -1866,8 +1865,8 @@ pci_fastcom335_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch353_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16550A;
@@ -1876,8 +1875,8 @@ pci_wch_ch353_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch38x_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16850;
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 658b392..1f18065 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -425,8 +425,8 @@ static int check_resources(struct pnp_dev *dev)
 static int serial_pnp_guess_board(struct pnp_dev *dev)
 {
 	if (!(check_name(pnp_dev_name(dev)) ||
-		(dev->card && check_name(dev->card->name))))
-			return -ENODEV;
+	    (dev->card && check_name(dev->card->name))))
+		return -ENODEV;
=20
 	if (check_resources(dev))
 		return 0;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index ae8f993..57ad0f2 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -52,7 +52,7 @@
 #define DEBUG_AUTOCONF(fmt...)	do { } while (0)
 #endif
=20
-#define BOTH_EMPTY 	(UART_LSR_TEMT | UART_LSR_THRE)
+#define BOTH_EMPTY	(UART_LSR_TEMT | UART_LSR_THRE)
=20
 /*
  * Here we define the default xmit fifo size used for each type of UAR=
T.
@@ -2236,9 +2236,9 @@ static void serial8250_set_divisor(struct uart_po=
rt *port, unsigned int baud,
 		serial_port_out(port, 0x2, quot_frac);
 }
=20
-static unsigned int
-serial8250_get_baud_rate(struct uart_port *port, struct ktermios *term=
ios,
-			 struct ktermios *old)
+static unsigned int serial8250_get_baud_rate(struct uart_port *port,
+					     struct ktermios *termios,
+					     struct ktermios *old)
 {
 	unsigned int tolerance =3D port->uartclk / 100;
=20
@@ -2253,9 +2253,9 @@ serial8250_get_baud_rate(struct uart_port *port, =
struct ktermios *termios,
 				  (port->uartclk + tolerance) / 16);
 }
=20
-void
-serial8250_do_set_termios(struct uart_port *port, struct ktermios *ter=
mios,
-		          struct ktermios *old)
+void serial8250_do_set_termios(struct uart_port *port,
+			       struct ktermios *termios,
+			       struct ktermios *old)
 {
 	struct uart_8250_port *up =3D up_to_u8250p(port);
 	unsigned char cval;
--=20
1.9.1


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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH 04/11] tty: serial: 8250: Fix multiline comment style
Date: Wed, 16 Dec 2015 16:36:10 +0100
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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Checkpatch outputs some warnings about incorrect comment style,
which is fixed by this patch.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_ingenic.c |  6 ++-
 drivers/tty/serial/8250/8250_pnp.c     |  6 ++-
 drivers/tty/serial/8250/8250_port.c    | 29 ++++++-----
 drivers/tty/serial/8250/serial_cs.c    | 92 +++++++++++++++++++-------=
--------
 4 files changed, 75 insertions(+), 58 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_ingenic.c b/drivers/tty/seria=
l/8250/8250_ingenic.c
index 49394b4..c53d2501 100644
--- a/drivers/tty/serial/8250/8250_ingenic.c
+++ b/drivers/tty/serial/8250/8250_ingenic.c
@@ -153,13 +153,15 @@ static void ingenic_uart_serial_out(struct uart_p=
ort *p, int offset, int value)
=20
 	case UART_IER:
 		/* Enable receive timeout interrupt with the
-		 * receive line status interrupt */
+		 * receive line status interrupt
+		 */
 		value |=3D (value & 0x4) << 2;
 		break;
=20
 	case UART_MCR:
 		/* If we have enabled modem status IRQs we should enable modem
-		 * mode. */
+		 * mode.
+		 */
 		ier =3D p->serial_in(p, UART_IER);
=20
 		if (ier & UART_IER_MSI)
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 1f18065..2731031 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -367,8 +367,10 @@ static const struct pnp_device_id pnp_dev_table[] =
=3D {
 	{	"PNPCXXX",		UNKNOWN_DEV	},
 	/* More unknown PnP modems */
 	{	"PNPDXXX",		UNKNOWN_DEV	},
-	/* Winbond CIR port, should not be probed. We should keep track
-	   of it to prevent the legacy serial driver from probing it */
+	/*
+	 * Winbond CIR port, should not be probed. We should keep track
+	 * of it to prevent the legacy serial driver from probing it
+	 */
 	{	"WEC1022",		CIR_PORT	},
 	/*
 	 * SMSC IrCC SIR/FIR port, should not be probed by serial driver
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 57ad0f2..0ec823e 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -250,9 +250,11 @@ static const struct serial8250_config uart_config[=
] =3D {
 		.fcr		=3D UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
 		.flags		=3D UART_CAP_FIFO | UART_CAP_AFE,
 	},
-/* tx_loadsz is set to 63-bytes instead of 64-bytes to implement
-workaround of errata A-008006 which states that tx_loadsz should  be
-configured less than Maximum supported fifo bytes */
+	/*
+	 * tx_loadsz is set to 63-bytes instead of 64-bytes to implement
+	 * workaround of errata A-008006 which states that tx_loadsz should b=
e
+	 * configured less than Maximum supported fifo bytes
+	 */
 	[PORT_16550A_FSL64] =3D {
 		.name		=3D "16550A_FSL64",
 		.fifo_size	=3D 64,
@@ -1970,16 +1972,17 @@ int serial8250_do_startup(struct uart_port *por=
t)
=20
 	serial8250_set_mctrl(port, port->mctrl);
=20
-	/* Serial over Lan (SoL) hack:
-	   Intel 8257x Gigabit ethernet chips have a
-	   16550 emulation, to be used for Serial Over Lan.
-	   Those chips take a longer time than a normal
-	   serial device to signalize that a transmission
-	   data was queued. Due to that, the above test generally
-	   fails. One solution would be to delay the reading of
-	   iir. However, this is not reliable, since the timeout
-	   is variable. So, let's just don't test if we receive
-	   TX irq. This way, we'll never enable UART_BUG_TXEN.
+	/*
+	 * Serial over Lan (SoL) hack:
+	 * Intel 8257x Gigabit ethernet chips have a
+	 * 16550 emulation, to be used for Serial Over Lan.
+	 * Those chips take a longer time than a normal
+	 * serial device to signalize that a transmission
+	 * data was queued. Due to that, the above test generally
+	 * fails. One solution would be to delay the reading of
+	 * iir. However, this is not reliable, since the timeout
+	 * is variable. So, let's just don't test if we receive
+	 * TX irq. This way, we'll never enable UART_BUG_TXEN.
 	 */
 	if (up->port.flags & UPF_NO_TXEN_TEST)
 		goto dont_test_tx_en;
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index f5270ba..a4bdcf6 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -1,35 +1,37 @@
-/*=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
-
-    A driver for PCMCIA serial devices
-
-    serial_cs.c 1.134 2002/05/04 05:48:53
-
-    The contents of this file are subject to the Mozilla Public
-    License Version 1.1 (the "License"); you may not use this file
-    except in compliance with the License. You may obtain a copy of
-    the License at http://www.mozilla.org/MPL/
-
-    Software distributed under the License is distributed on an "AS
-    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
-    implied. See the License for the specific language governing
-    rights and limitations under the License.
-
-    The initial developer of the original code is David A. Hinds
-    <dahinds@users.sourceforge.net>.  Portions created by David A. Hin=
ds
-    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
-
-    Alternatively, the contents of this file may be used under the
-    terms of the GNU General Public License version 2 (the "GPL"), in =
which
-    case the provisions of the GPL are applicable instead of the
-    above.  If you wish to allow the use of your version of this file
-    only under the terms of the GPL and not to allow others to use
-    your version of this file under the MPL, indicate your decision
-    by deleting the provisions above and replace them with the notice
-    and other provisions required by the GPL.  If you do not delete
-    the provisions above, a recipient may use your version of this
-    file under either the MPL or the GPL.
-   =20
-=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
+/*
+ * =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
+ *
+ * A driver for PCMCIA serial devices
+ *
+ * serial_cs.c 1.134 2002/05/04 05:48:53
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hind=
s
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in w=
hich
+ * case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL.  If you do not delete
+ * the provisions above, a recipient may use your version of this
+ * file under either the MPL or the GPL.
+ *
+ * =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
+ */
=20
 #include <linux/module.h>
 #include <linux/moduleparam.h>
@@ -441,16 +443,20 @@ static int simple_config(struct pcmcia_device *li=
nk)
 	struct serial_info *info =3D link->priv;
 	int i =3D -ENODEV, try;
=20
-	/* First pass: look for a config entry that looks normal.
-	 * Two tries: without IO aliases, then with aliases */
+	/*
+	 * First pass: look for a config entry that looks normal.
+	 * Two tries: without IO aliases, then with aliases
+	 */
 	link->config_flags |=3D CONF_AUTO_SET_VPP;
 	for (try =3D 0; try < 4; try++)
 		if (!pcmcia_loop_config(link, simple_config_check, &try))
 			goto found_port;
=20
-	/* Second pass: try to find an entry that isn't picky about
-	   its base address, then try to grab any standard serial port
-	   address, and finally try to get any free port. */
+	/*
+	 * Second pass: try to find an entry that isn't picky about
+	 * its base address, then try to grab any standard serial port
+	 * address, and finally try to get any free port.
+	 */
 	if (!pcmcia_loop_config(link, simple_config_check_notpicky, NULL))
 		goto found_port;
=20
@@ -480,8 +486,10 @@ static int multi_config_check(struct pcmcia_device=
 *p_dev, void *priv_data)
 	if (p_dev->resource[1]->end)
 		return -EINVAL;
=20
-	/* The quad port cards have bad CIS's, so just look for a
-	   window larger than 8 ports and assume it will be right */
+	/*
+	 * The quad port cards have bad CIS's, so just look for a
+	 * window larger than 8 ports and assume it will be right
+	 */
 	if (p_dev->resource[0]->end <=3D 8)
 		return -EINVAL;
=20
@@ -623,8 +631,10 @@ static int serial_config(struct pcmcia_device *lin=
k)
 			break;
 		}
=20
-	/* Another check for dual-serial cards: look for either serial or
-	   multifunction cards that ask for appropriate IO port ranges */
+	/*
+	 * Another check for dual-serial cards: look for either serial or
+	 * multifunction cards that ask for appropriate IO port ranges
+	 */
 	if ((info->multi =3D=3D 0) &&
 	    (link->has_func_id) &&
 	    (link->socket->pcmcia_pfc =3D=3D 0) &&
--=20
1.9.1


From - Thu Nov 08 21:38:06 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH 01/11] tty: serial: 8250: Fix whitespace errors
Date: Wed, 16 Dec 2015 16:36:07 +0100
Lines: 428
Approved: news@gmane.org
Message-ID: <1450280177-4460-2-git-send-email-anton.wuerfel@fau.de>
References: <1450280177-4460-1-git-send-email-anton.wuerfel@fau.de>
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel:2109886 gmane.linux.serial:21105 gmane.linux.ports.parisc:26193
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2109886>

This patch fixes whitespace errors reported by checkpatch to increase
readability. Main focus is on missing spaces after commas in
function headers and macros (like foo,bar edited to foo, bar).

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_accent.c        |  2 +-
 drivers/tty/serial/8250/8250_acorn.c         |  2 +-
 drivers/tty/serial/8250/8250_boca.c          |  2 +-
 drivers/tty/serial/8250/8250_core.c          |  1 +
 drivers/tty/serial/8250/8250_dw.c            |  6 +++
 drivers/tty/serial/8250/8250_exar_st16c554.c |  2 +-
 drivers/tty/serial/8250/8250_fourport.c      |  2 +-
 drivers/tty/serial/8250/8250_hp300.c         |  1 +
 drivers/tty/serial/8250/8250_hub6.c          |  2 +-
 drivers/tty/serial/8250/8250_pci.c           |  7 +++-
 drivers/tty/serial/8250/8250_port.c          |  3 ++
 drivers/tty/serial/8250/serial_cs.c          | 58 ++++++++++++++------=
--------
 12 files changed, 52 insertions(+), 36 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_accent.c b/drivers/tty/serial=
/8250/8250_accent.c
index 34b51c6..c480729 100644
--- a/drivers/tty/serial/8250/8250_accent.c
+++ b/drivers/tty/serial/8250/8250_accent.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
+#define PORT(_base, _irq)				\
 	{						\
 		.iobase		=3D _base,		\
 		.irq		=3D _irq,			\
diff --git a/drivers/tty/serial/8250/8250_acorn.c b/drivers/tty/serial/=
8250/8250_acorn.c
index 549aa07..402dfdd 100644
--- a/drivers/tty/serial/8250/8250_acorn.c
+++ b/drivers/tty/serial/8250/8250_acorn.c
@@ -70,7 +70,7 @@ serial_card_probe(struct expansion_card *ec, const st=
ruct ecard_id *id)
 	uart.port.regshift	=3D 2;
 	uart.port.dev	=3D &ec->dev;
=20
-	for (i =3D 0; i < info->num_ports; i ++) {
+	for (i =3D 0; i < info->num_ports; i++) {
 		uart.port.membase =3D info->vaddr + type->offset[i];
 		uart.port.mapbase =3D bus_addr + type->offset[i];
=20
diff --git a/drivers/tty/serial/8250/8250_boca.c b/drivers/tty/serial/8=
250/8250_boca.c
index d125dc1..e42a5b5 100644
--- a/drivers/tty/serial/8250/8250_boca.c
+++ b/drivers/tty/serial/8250/8250_boca.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
+#define PORT(_base, _irq)				\
 	{						\
 		.iobase		=3D _base,		\
 		.irq		=3D _irq,			\
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 3912646..89a20c9 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -756,6 +756,7 @@ void serial8250_suspend_port(int line)
 	if (!console_suspend_enabled && uart_console(port) &&
 	    port->type !=3D PORT_8250) {
 		unsigned char canary =3D 0xa5;
+
 		serial_out(up, UART_SCR, canary);
 		if (serial_in(up, UART_SCR) =3D=3D canary)
 			up->canary =3D canary;
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/825=
0/8250_dw.c
index a5d319e..0f67355 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -102,8 +102,10 @@ static void dw8250_serial_out(struct uart_port *p,=
 int offset, int value)
 	/* Make sure LCR write wasn't ignored */
 	if (offset =3D=3D UART_LCR) {
 		int tries =3D 1000;
+
 		while (tries--) {
 			unsigned int lcr =3D p->serial_in(p, UART_LCR);
+
 			if ((value & ~UART_LCR_SPAR) =3D=3D (lcr & ~UART_LCR_SPAR))
 				return;
 			dw8250_force_idle(p);
@@ -143,8 +145,10 @@ static void dw8250_serial_outq(struct uart_port *p=
, int offset, int value)
 	/* Make sure LCR write wasn't ignored */
 	if (offset =3D=3D UART_LCR) {
 		int tries =3D 1000;
+
 		while (tries--) {
 			unsigned int lcr =3D p->serial_in(p, UART_LCR);
+
 			if ((value & ~UART_LCR_SPAR) =3D=3D (lcr & ~UART_LCR_SPAR))
 				return;
 			dw8250_force_idle(p);
@@ -166,8 +170,10 @@ static void dw8250_serial_out32(struct uart_port *=
p, int offset, int value)
 	/* Make sure LCR write wasn't ignored */
 	if (offset =3D=3D UART_LCR) {
 		int tries =3D 1000;
+
 		while (tries--) {
 			unsigned int lcr =3D p->serial_in(p, UART_LCR);
+
 			if ((value & ~UART_LCR_SPAR) =3D=3D (lcr & ~UART_LCR_SPAR))
 				return;
 			dw8250_force_idle(p);
diff --git a/drivers/tty/serial/8250/8250_exar_st16c554.c b/drivers/tty=
/serial/8250/8250_exar_st16c554.c
index bf53aab..999f2d3 100644
--- a/drivers/tty/serial/8250/8250_exar_st16c554.c
+++ b/drivers/tty/serial/8250/8250_exar_st16c554.c
@@ -13,7 +13,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
+#define PORT(_base, _irq)				\
 	{						\
 		.iobase		=3D _base,		\
 		.irq		=3D _irq,			\
diff --git a/drivers/tty/serial/8250/8250_fourport.c b/drivers/tty/seri=
al/8250/8250_fourport.c
index be15826..9a04a8a 100644
--- a/drivers/tty/serial/8250/8250_fourport.c
+++ b/drivers/tty/serial/8250/8250_fourport.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)						\
+#define PORT(_base, _irq)						\
 	{								\
 		.iobase		=3D _base,				\
 		.irq		=3D _irq,					\
diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 2891958..38d8cb2 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -125,6 +125,7 @@ int __init hp300_setup_serial_console(void)
 	} else {
 #ifdef CONFIG_HPDCA
 		unsigned long pa =3D dio_scodetophysaddr(scode);
+
 		if (!pa)
 			return 0;
=20
diff --git a/drivers/tty/serial/8250/8250_hub6.c b/drivers/tty/serial/8=
250/8250_hub6.c
index a5c778e..27124e2 100644
--- a/drivers/tty/serial/8250/8250_hub6.c
+++ b/drivers/tty/serial/8250/8250_hub6.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define HUB6(card,port)							\
+#define HUB6(card, port)						\
 	{								\
 		.iobase		=3D 0x302,				\
 		.irq		=3D 3,					\
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 4097f3f..ed99fdf 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -113,6 +113,7 @@ static int addidata_apci7800_setup(struct serial_pr=
ivate *priv,
 				struct uart_8250_port *port, int idx)
 {
 	unsigned int bar =3D 0, offset =3D board->first_offset;
+
 	bar =3D FL_GET_BASE(board->flags);
=20
 	if (idx < 2) {
@@ -1115,6 +1116,7 @@ static struct quatech_feature quatech_cards[] =3D=
 {
 static int pci_quatech_amcc(u16 devid)
 {
 	struct quatech_feature *qf =3D &quatech_cards[0];
+
 	while (qf->devid) {
 		if (qf->devid =3D=3D devid)
 			return qf->amcc;
@@ -1200,6 +1202,7 @@ static int pci_quatech_test(struct uart_8250_port=
 *port)
 {
 	u8 reg;
 	u8 qopr =3D pci_quatech_rqopr(port);
+
 	pci_quatech_wqopr(port, qopr & QPCR_TEST_FOR1);
 	reg =3D pci_quatech_rqopr(port) & 0xC0;
 	if (reg !=3D QPCR_TEST_GET1)
@@ -1284,8 +1287,10 @@ static int pci_quatech_init(struct pci_dev *dev)
 {
 	if (pci_quatech_amcc(dev->device)) {
 		unsigned long base =3D pci_resource_start(dev, 0);
+
 		if (base) {
 			u32 tmp;
+
 			outl(inl(base + 0x38) | 0x00002000, base + 0x38);
 			tmp =3D inl(base + 0x3c);
 			outl(tmp | 0x01000000, base + 0x3c);
@@ -4502,7 +4507,7 @@ static struct pci_device_id serial_pci_tbl[] =3D =
{
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b0_bt_2_921600 },
 	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI958,
-		PCI_ANY_ID , PCI_ANY_ID, 0, 0,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b2_8_1152000 },
=20
 	/*
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 52d82d2..ae8f993 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1327,6 +1327,7 @@ static void serial8250_start_tx(struct uart_port =
*port)
=20
 		if (up->bugs & UART_BUG_TXEN) {
 			unsigned char lsr;
+
 			lsr =3D serial_in(up, UART_LSR);
 			up->lsr_saved_flags |=3D lsr & LSR_SAVE_FLAGS;
 			if (lsr & UART_LSR_THRE)
@@ -1734,8 +1735,10 @@ static void wait_for_xmitr(struct uart_8250_port=
 *up, int bits)
 	/* Wait up to 1s for flow control if necessary */
 	if (up->port.flags & UPF_CONS_FLOW) {
 		unsigned int tmout;
+
 		for (tmout =3D 1000000; tmout; tmout--) {
 			unsigned int msr =3D serial_in(up, UART_MSR);
+
 			up->msr_saved_flags |=3D msr & MSR_SAVE_FLAGS;
 			if (msr & UART_MSR_CTS)
 				break;
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 4d180c9..f5270ba 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -257,7 +257,7 @@ static const struct serial_quirk quirks[] =3D {
 };
=20
=20
-static int serial_config(struct pcmcia_device * link);
+static int serial_config(struct pcmcia_device *link);
=20
=20
 static void serial_remove(struct pcmcia_device *link)
@@ -309,7 +309,7 @@ static int serial_probe(struct pcmcia_device *link)
 	dev_dbg(&link->dev, "serial_attach()\n");
=20
 	/* Create new serial device */
-	info =3D kzalloc(sizeof (*info), GFP_KERNEL);
+	info =3D kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 	info->p_dev =3D link;
@@ -339,7 +339,7 @@ static void serial_detach(struct pcmcia_device *lin=
k)
=20
 /*=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
=20
-static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo * info,
+static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo *info,
 			unsigned int iobase, int irq)
 {
 	struct uart_8250_port uart;
@@ -600,7 +600,7 @@ static int serial_check_for_multi(struct pcmcia_dev=
ice *p_dev,  void *priv_data)
 }
=20
=20
-static int serial_config(struct pcmcia_device * link)
+static int serial_config(struct pcmcia_device *link)
 {
 	struct serial_info *info =3D link->priv;
 	int i;
@@ -701,7 +701,7 @@ static const struct pcmcia_device_id serial_ids[] =3D=
 {
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "LINKSYS", "PCMLM336", 0xf7cb0b07, 0x7=
a821b58),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf5=
10db04, 0x52d21e1e),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MICRO RESEARCH", "COMBO-L/M-336", 0xb=
2ced065, 0x3ced0555),
-	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001" ,0x18df0ba0 ,0x831=
b1064),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001", 0x18df0ba0, 0x831=
b1064),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Diamonds=
 Modem+Ethernet", 0xc2f80cd, 0x656947b9),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Hearts M=
odem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "PCMCIAs", "ComboCard", 0xdcfe12d3, 0x=
cd8906cc),
@@ -797,30 +797,30 @@ static const struct pcmcia_device_id serial_ids[]=
 =3D {
 	PCMCIA_DEVICE_CIS_PROD_ID123("ADVANTECH", "COMpad-32/85", "1.0", 0x96=
913a85, 0x8fbe92ae, 0x0877b627, "cis/COMpad2.cis"),
 	PCMCIA_DEVICE_CIS_PROD_ID2("RS-COM 2P", 0xad20b156, "cis/RS-COM-2P.ci=
s"),
 	PCMCIA_DEVICE_CIS_MANF_CARD(0x0013, 0x0000, "cis/GLOBETROTTER.cis"),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100  1.00.",0x19ca78af,0xf964f42b),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100",0x19ca78af,0x71d98e83),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232  1.00.",0x19ca78af,0x69fb7490),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232",0x19ca78af,0xb6bc0235),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232",0x63f2e0bd,0xb9e175d3),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232-5",0x63f2e0bd,0xfce33442),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232",0x3beb8cf2,0x171e=
7190),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232-5",0x3beb8cf2,0x20=
da4262),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF428",0x3beb8cf2,0xea5d=
d57d),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF500",0x3beb8cf2,0xd772=
55fa),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: IC232",0x3beb8cf2,0x6a70=
9903),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: SL232",0x3beb8cf2,0x1843=
0676),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: XL232",0x3beb8cf2,0x6f93=
3767),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial+Parallel Port: SP230",0x=
3beb8cf2,0xdb9e58bc),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(2,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(3,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100  1.00.", 0x19ca78af, 0xf964f42b),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100", 0x19ca78af, 0x71d98e83),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232  1.00.", 0x19ca78af, 0x69fb7490),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232", 0x19ca78af, 0xb6bc0235),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232", 0x63f2e0bd, 0xb9e175d3),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232-5", 0x63f2e0bd, 0xfce33442),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232", 0x3beb8cf2, 0x1=
71e7190),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232-5", 0x3beb8cf2, 0=
x20da4262),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF428", 0x3beb8cf2, 0xe=
a5dd57d),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF500", 0x3beb8cf2, 0xd=
77255fa),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: IC232", 0x3beb8cf2, 0x6=
a709903),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: SL232", 0x3beb8cf2, 0x1=
8430676),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: XL232", 0x3beb8cf2, 0x6=
f933767),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial+Parallel Port: SP230",=
 0x3beb8cf2, 0xdb9e58bc),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(2, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(3, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
 	PCMCIA_DEVICE_MANF_CARD(0x0279, 0x950b),
 	/* too generic */
 	/* PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0160, 0x0002), */
--=20
1.9.1


From - Thu Nov 08 21:38:06 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH 11/11] tty: serial: 8250: Delete commented code
Date: Wed, 16 Dec 2015 16:36:17 +0100
Lines: 40
Approved: news@gmane.org
Message-ID: <1450280177-4460-12-git-send-email-anton.wuerfel@fau.de>
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel:2109887 gmane.linux.serial:21106 gmane.linux.ports.parisc:26194
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2109887>

This patch removes code which has been commented out. It serves no
documentary purposes and decreases the readability of the remaining cod=
e.
=46urthermore the comment style causes checkpatch warnings. If this cod=
e
should ever be needed again, git keeps track of it.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 3bc0303..9136f0f 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -4928,16 +4928,9 @@ static struct pci_device_id serial_pci_tbl[] =3D=
 {
 	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF0,
 		0x1208, 0x0004, 0, 0,
 		pbn_b0_4_921600 },
-/*	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF0,
-		0x1402, 0x0002, 0, 0,
-		pbn_b0_2_921600 }, */
-/*	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF0,
-		0x1404, 0x0004, 0, 0,
-		pbn_b0_4_921600 }, */
 	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF1,
 		0x1208, 0x0004, 0, 0,
 		pbn_b0_4_921600 },
-
 	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF2,
 		0x1204, 0x0004, 0, 0,
 		pbn_b0_4_921600 },
--=20
1.9.1


From - Thu Nov 08 21:38:06 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH 10/11] tty: serial: 8250: Replace printk by pr_*
Date: Wed, 16 Dec 2015 16:36:16 +0100
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Approved: news@gmane.org
Message-ID: <1450280177-4460-11-git-send-email-anton.wuerfel@fau.de>
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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This patch replaces printk by the corresponding variant of pr_* in orde=
r to
fix checkpatch warnings.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c  |  5 ++---
 drivers/tty/serial/8250/8250_gsc.c   |  6 ++----
 drivers/tty/serial/8250/8250_hp300.c | 14 +++++++-------
 drivers/tty/serial/8250/8250_pnp.c   |  6 +++---
 drivers/tty/serial/8250/8250_port.c  |  3 +--
 5 files changed, 15 insertions(+), 19 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 2b3731f..b5e0c48 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1095,9 +1095,8 @@ static int __init serial8250_init(void)
=20
 	serial8250_isa_init_ports();
=20
-	printk(KERN_INFO "Serial: 8250/16550 driver, "
-		"%d ports, IRQ sharing %sabled\n", nr_uarts,
-		share_irqs ? "en" : "dis");
+	pr_info("Serial: 8250/16550 driver, %d ports, IRQ sharing %sabled\n",
+		nr_uarts, share_irqs ? "en" : "dis");
=20
 #ifdef CONFIG_SPARC
 	ret =3D sunserial_register_minors(&serial8250_reg, UART_NR);
diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/82=
50/8250_gsc.c
index 2e3ea1a..a9b63d0 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -42,8 +42,7 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
 		 * the user what they're missing.
 		 */
 		if (parisc_parent(dev)->id.hw_type !=3D HPHW_IOA)
-			printk(KERN_INFO
-				"Serial: device 0x%llx not configured.\n"
+			pr_info("Serial: device 0x%llx not configured.\n"
 				"Enable support for Wax, Lasi, Asp or Dino.\n",
 				(unsigned long long)dev->hpa.start);
 		return -ENODEV;
@@ -66,8 +65,7 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
=20
 	err =3D serial8250_register_8250_port(&uart);
 	if (err < 0) {
-		printk(KERN_WARNING
-			"serial8250_register_8250_port returned error %d\n", err);
+		pr_warn("serial8250_register_8250_port returned error %d\n", err);
 		iounmap(uart.port.membase);
 		return err;
 	}
diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 52c43da..85b574896 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -110,7 +110,7 @@ int __init hp300_setup_serial_console(void)
 	/* Check for APCI console */
 	if (scode =3D=3D 256) {
 #ifdef CONFIG_HPAPCI
-		printk(KERN_INFO "Serial console is HP APCI 1\n");
+		pr_info("Serial console is HP APCI 1\n");
=20
 		port.uartclk =3D HPAPCI_BAUD_BASE * 16;
 		port.mapbase =3D (FRODO_BASE + FRODO_APCI_OFFSET(1));
@@ -118,7 +118,7 @@ int __init hp300_setup_serial_console(void)
 		port.regshift =3D 2;
 		add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is APCI but support is disabled =
(CONFIG_HPAPCI)!\n");
+		pr_warn("Serial console is APCI but support is disabled (CONFIG_HPAP=
CI)!\n");
 		return 0;
 #endif
 	} else {
@@ -128,7 +128,7 @@ int __init hp300_setup_serial_console(void)
 		if (!pa)
 			return 0;
=20
-		printk(KERN_INFO "Serial console is HP DCA at select code %d\n", sco=
de);
+		pr_info("Serial console is HP DCA at select code %d\n", scode);
=20
 		port.uartclk =3D HPDCA_BAUD_BASE * 16;
 		port.mapbase =3D (pa + UART_OFFSET);
@@ -142,13 +142,13 @@ int __init hp300_setup_serial_console(void)
 		if (DIO_ID(pa + DIO_VIRADDRBASE) & 0x80)
 			add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is DCA but support is disabled (=
CONFIG_HPDCA)!\n");
+		pr_warn("Serial console is DCA but support is disabled (CONFIG_HPDCA=
)!\n");
 		return 0;
 #endif
 	}
=20
 	if (early_serial_setup(&port) < 0)
-		printk(KERN_WARNING "hp300_setup_serial_console(): early_serial_setu=
p() failed.\n");
+		pr_warn("hp300_setup_serial_console(): early_serial_setup() failed.\=
n");
 	return 0;
 }
 #endif /* CONFIG_SERIAL_8250_CONSOLE */
@@ -180,7 +180,7 @@ static int hpdca_init_one(struct dio_dev *d,
 	line =3D serial8250_register_8250_port(&uart);
=20
 	if (line < 0) {
-		printk(KERN_NOTICE "8250_hp300: register_serial() DCA scode %d"
+		pr_notice("8250_hp300: register_serial() DCA scode %d"
 		       " irq %d failed\n", d->scode, uart.port.irq);
 		return -ENOMEM;
 	}
@@ -261,7 +261,7 @@ static int __init hp300_8250_init(void)
 		line =3D serial8250_register_8250_port(&uart);
=20
 		if (line < 0) {
-			printk(KERN_NOTICE "8250_hp300: register_serial() APCI"
+			pr_notice("8250_hp300: register_serial() APCI"
 			       " %d irq %d failed\n", i, uart.port.irq);
 			kfree(port);
 			continue;
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 2731031..3811c67 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -465,9 +465,9 @@ serial_pnp_probe(struct pnp_dev *dev, const struct =
pnp_device_id *dev_id)
 		return -ENODEV;
=20
 #ifdef SERIAL_DEBUG_PNP
-	printk(KERN_DEBUG
-		"Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
-		       uart.port.iobase, uart.port.mapbase, uart.port.irq, uart.port=
=2Eiotype);
+	pr_debug("Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
+		 uart.port.iobase, uart.port.mapbase,
+		 uart.port.irq, uart.port.iotype);
 #endif
 	if (flags & CIR_PORT) {
 		uart.port.flags |=3D UPF_FIXED_PORT | UPF_FIXED_TYPE;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 0ec823e..1b2aaf9 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1222,8 +1222,7 @@ static void autoconfig(struct uart_8250_port *up)
 out_lock:
 	spin_unlock_irqrestore(&port->lock, flags);
 	if (up->capabilities !=3D old_capabilities) {
-		printk(KERN_WARNING
-		       "ttyS%d: detected caps %08x should be %08x\n",
+		pr_warn("ttyS%d: detected caps %08x should be %08x\n",
 		       serial_index(port), old_capabilities,
 		       up->capabilities);
 	}
--=20
1.9.1


From - Thu Nov 08 21:38:06 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH 06/11] tty: serial: 8250: Move EXPORT_SYMBOL to function
Date: Wed, 16 Dec 2015 16:36:12 +0100
Lines: 45
Approved: news@gmane.org
Message-ID: <1450280177-4460-7-git-send-email-anton.wuerfel@fau.de>
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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This patch moves EXPORT_SYMBOL macros directly after the definition of
the corresponding symbol to remove checkpatch warnings.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 89a20c9..67147b2 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -764,6 +764,7 @@ void serial8250_suspend_port(int line)
=20
 	uart_suspend_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_suspend_port);
=20
 /**
  *	serial8250_resume_port - resume one serial port
@@ -789,6 +790,7 @@ void serial8250_resume_port(int line)
 	}
 	uart_resume_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_resume_port);
=20
 /*
  * Register a set of serial devices attached to a platform device.  Th=
e
@@ -1168,9 +1170,6 @@ static void __exit serial8250_exit(void)
 module_init(serial8250_init);
 module_exit(serial8250_exit);
=20
-EXPORT_SYMBOL(serial8250_suspend_port);
-EXPORT_SYMBOL(serial8250_resume_port);
-
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
--=20
1.9.1


From - Thu Nov 08 21:38:06 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH 00/11] tty: serial: 8250: Fix checkpatch warnings
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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This patch set fixes several checkpatch warnings in tty/serial/8250.

Patch 1/11:  Adds missing spaces (mainly to function/macro headers)
Patch 2/11:  Fixes code indentation
Patch 3/11:  Slight patch which moves an opening curly brace
Patch 4/11:  Fixes multiline comment style
Patch 5/11:  Removes else blocks after return statements
Patch 6/11:  Slight patch which moves EXPORT_SYMBOL macro to correct position
Patch 7/11:  Slight patch which removes an unneccessary line continuation
Patch 8/11:  Slight patch which adds parentheses to a macro definition
Patch 9/11:  Merges user-visible multiline strings to a single line
Patch 10/11: Replaces printk by corresponding variant of pr_*
Patch 11/11: Removes code which has been commented out

Remaining checkpatch warnings after applying this patch series:

-line over 80 characters
	This error mostly occurs in serial_cs.c, which contains long-lined
	macro calls. However, splitting these calls into multiple lines would
	not increase readability.

-externs should be avoided in .c files
	This occurs in 8250_hp300.c. There is no corresponding header file
	the extern statement could be moved to. It could be moved to 8250.h
	but this would affect other .c files.

-Use #include <linux/*.h> instead of <asm/*.h>
	This warning has been left open for more experienced kernel hackers.
	This patch series is about style issues. We do not intend to alter
	the code behavior.

-struct uart_ops should normally be const
	This warning only occurs in 8250_core.c. The corresponding struct
	cannot be declared as const because it is altered in
	serial8250_isa_init_ports(). Maybe a checkpatch exception should
	be added for this particular warning.

-quoted string split across lines
	These strings were ignored because they otherwise would exceed
	80 characters in a single line. These particular strings use
	format specifiers, which break the ability to grep for them anyway.

Anton Wuerfel (11):
Phillip Raffeck (11):
  tty: serial: 8250: Fix whitespace errors
  tty: serial: 8250: Fix indentation warnings
  tty: serial: 8250: Fix braces after struct
  tty: serial: 8250: Fix multiline comment style
  tty: serial: 8250: Remove else after return
  tty: serial: 8250: Move EXPORT_SYMBOL to function
  tty: serial: 8250: Fix line continuation warning
  tty: serial: 8250: Add parentheses to macro
  tty: serial: 8250: Fix multi-line strings
  tty: serial: 8250: Replace printk by pr_*
  tty: serial: 8250: Delete commented code

 drivers/tty/serial/8250/8250_accent.c        |   2 +-
 drivers/tty/serial/8250/8250_acorn.c         |   2 +-
 drivers/tty/serial/8250/8250_boca.c          |   2 +-
 drivers/tty/serial/8250/8250_core.c          |  16 ++-
 drivers/tty/serial/8250/8250_dw.c            |   6 ++
 drivers/tty/serial/8250/8250_exar_st16c554.c |   2 +-
 drivers/tty/serial/8250/8250_fourport.c      |   2 +-
 drivers/tty/serial/8250/8250_gsc.c           |   6 +-
 drivers/tty/serial/8250/8250_hp300.c         |  22 ++--
 drivers/tty/serial/8250/8250_hub6.c          |   2 +-
 drivers/tty/serial/8250/8250_ingenic.c       |   6 +-
 drivers/tty/serial/8250/8250_pci.c           |  60 +++++------
 drivers/tty/serial/8250/8250_pnp.c           |  16 +--
 drivers/tty/serial/8250/8250_port.c          |  49 +++++----
 drivers/tty/serial/8250/serial_cs.c          | 153 ++++++++++++++-------------
 15 files changed, 181 insertions(+), 165 deletions(-)

-- 
1.9.1

From - Thu Nov 08 21:38:07 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH 08/11] tty: serial: 8250: Add parentheses to macro
Date: Wed, 16 Dec 2015 16:36:14 +0100
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Approved: news@gmane.org
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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This patch fixes a checkpatch warning caused by missing parentheses
in the definition of a macro.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 67147b2..3c29530 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -686,7 +686,7 @@ static int __init univ8250_console_init(void)
 }
 console_initcall(univ8250_console_init);
=20
-#define SERIAL8250_CONSOLE	&univ8250_console
+#define SERIAL8250_CONSOLE	(&univ8250_console)
 #else
 #define SERIAL8250_CONSOLE	NULL
 #endif
--=20
1.9.1


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Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH 03/11] tty: serial: 8250: Fix braces after struct
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	Helge Deller <deller@gmx.de>,
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	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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This patch fixes a checkpatch warning by moving an opening  curly brace
to its correct position

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 38d8cb2..694b509 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -24,8 +24,7 @@
 #endif
=20
 #ifdef CONFIG_HPAPCI
-struct hp300_port
-{
+struct hp300_port {
 	struct hp300_port *next;	/* next port */
 	int line;			/* line (tty) number */
 };
--=20
1.9.1


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Subject: Re: [PATCH 01/11] tty: serial: 8250: Fix whitespace errors
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Cc: linux-serial@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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To: Anton Wuerfel <anton.wuerfel@fau.de>
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Hi Anton,

On 12/16/2015 07:36 AM, Anton Wuerfel wrote:
> This patch fixes whitespace errors reported by checkpatch to increase
> readability. Main focus is on missing spaces after commas in
> function headers and macros (like foo,bar edited to foo, bar).

Comments below.

> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> CC: linux-kernel@i4.cs.fau.de
> ---
>  drivers/tty/serial/8250/8250_accent.c        |  2 +-
>  drivers/tty/serial/8250/8250_acorn.c         |  2 +-
>  drivers/tty/serial/8250/8250_boca.c          |  2 +-
>  drivers/tty/serial/8250/8250_core.c          |  1 +
>  drivers/tty/serial/8250/8250_dw.c            |  6 +++
>  drivers/tty/serial/8250/8250_exar_st16c554.c |  2 +-
>  drivers/tty/serial/8250/8250_fourport.c      |  2 +-
>  drivers/tty/serial/8250/8250_hp300.c         |  1 +
>  drivers/tty/serial/8250/8250_hub6.c          |  2 +-
>  drivers/tty/serial/8250/8250_pci.c           |  7 +++-
>  drivers/tty/serial/8250/8250_port.c          |  3 ++
>  drivers/tty/serial/8250/serial_cs.c          | 58 ++++++++++++++----=
----------
>  12 files changed, 52 insertions(+), 36 deletions(-)
>=20
> diff --git a/drivers/tty/serial/8250/8250_accent.c b/drivers/tty/seri=
al/8250/8250_accent.c
> index 34b51c6..c480729 100644
> --- a/drivers/tty/serial/8250/8250_accent.c
> +++ b/drivers/tty/serial/8250/8250_accent.c
> @@ -10,7 +10,7 @@
>  #include <linux/init.h>
>  #include <linux/serial_8250.h>
> =20
> -#define PORT(_base,_irq)				\
> +#define PORT(_base, _irq)				\

ok

>  	{						\
>  		.iobase		=3D _base,		\
>  		.irq		=3D _irq,			\
> diff --git a/drivers/tty/serial/8250/8250_acorn.c b/drivers/tty/seria=
l/8250/8250_acorn.c
> index 549aa07..402dfdd 100644
> --- a/drivers/tty/serial/8250/8250_acorn.c
> +++ b/drivers/tty/serial/8250/8250_acorn.c
> @@ -70,7 +70,7 @@ serial_card_probe(struct expansion_card *ec, const =
struct ecard_id *id)
>  	uart.port.regshift	=3D 2;
>  	uart.port.dev	=3D &ec->dev;
> =20
> -	for (i =3D 0; i < info->num_ports; i ++) {
> +	for (i =3D 0; i < info->num_ports; i++) {

Ok

>  		uart.port.membase =3D info->vaddr + type->offset[i];
>  		uart.port.mapbase =3D bus_addr + type->offset[i];
> =20
> diff --git a/drivers/tty/serial/8250/8250_boca.c b/drivers/tty/serial=
/8250/8250_boca.c
> index d125dc1..e42a5b5 100644
> --- a/drivers/tty/serial/8250/8250_boca.c
> +++ b/drivers/tty/serial/8250/8250_boca.c
> @@ -10,7 +10,7 @@
>  #include <linux/init.h>
>  #include <linux/serial_8250.h>
> =20
> -#define PORT(_base,_irq)				\
> +#define PORT(_base, _irq)				\

Ok

>  	{						\
>  		.iobase		=3D _base,		\
>  		.irq		=3D _irq,			\
> diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial=
/8250/8250_core.c
> index 3912646..89a20c9 100644
> --- a/drivers/tty/serial/8250/8250_core.c
> +++ b/drivers/tty/serial/8250/8250_core.c
> @@ -756,6 +756,7 @@ void serial8250_suspend_port(int line)
>  	if (!console_suspend_enabled && uart_console(port) &&
>  	    port->type !=3D PORT_8250) {
>  		unsigned char canary =3D 0xa5;
> +

Not ok.

>  		serial_out(up, UART_SCR, canary);
>  		if (serial_in(up, UART_SCR) =3D=3D canary)
>  			up->canary =3D canary;
> diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8=
250/8250_dw.c
> index a5d319e..0f67355 100644
> --- a/drivers/tty/serial/8250/8250_dw.c
> +++ b/drivers/tty/serial/8250/8250_dw.c
> @@ -102,8 +102,10 @@ static void dw8250_serial_out(struct uart_port *=
p, int offset, int value)
>  	/* Make sure LCR write wasn't ignored */
>  	if (offset =3D=3D UART_LCR) {
>  		int tries =3D 1000;
> +

Not ok.

>  		while (tries--) {
>  			unsigned int lcr =3D p->serial_in(p, UART_LCR);
> +
>  			if ((value & ~UART_LCR_SPAR) =3D=3D (lcr & ~UART_LCR_SPAR))
>  				return;
>  			dw8250_force_idle(p);
> @@ -143,8 +145,10 @@ static void dw8250_serial_outq(struct uart_port =
*p, int offset, int value)
>  	/* Make sure LCR write wasn't ignored */
>  	if (offset =3D=3D UART_LCR) {
>  		int tries =3D 1000;
> +

Not ok.

>  		while (tries--) {
>  			unsigned int lcr =3D p->serial_in(p, UART_LCR);
> +

Not ok.

In particular, I dislike separation between initialized variables and
following statements, _especially_ when the initialization is non-trivi=
al.


>  			if ((value & ~UART_LCR_SPAR) =3D=3D (lcr & ~UART_LCR_SPAR))
>  				return;
>  			dw8250_force_idle(p);
> @@ -166,8 +170,10 @@ static void dw8250_serial_out32(struct uart_port=
 *p, int offset, int value)
>  	/* Make sure LCR write wasn't ignored */
>  	if (offset =3D=3D UART_LCR) {
>  		int tries =3D 1000;
> +

Not ok.

>  		while (tries--) {
>  			unsigned int lcr =3D p->serial_in(p, UART_LCR);
> +

Not ok.

>  			if ((value & ~UART_LCR_SPAR) =3D=3D (lcr & ~UART_LCR_SPAR))
>  				return;
>  			dw8250_force_idle(p);
> diff --git a/drivers/tty/serial/8250/8250_exar_st16c554.c b/drivers/t=
ty/serial/8250/8250_exar_st16c554.c
> index bf53aab..999f2d3 100644
> --- a/drivers/tty/serial/8250/8250_exar_st16c554.c
> +++ b/drivers/tty/serial/8250/8250_exar_st16c554.c
> @@ -13,7 +13,7 @@
>  #include <linux/init.h>
>  #include <linux/serial_8250.h>
> =20
> -#define PORT(_base,_irq)				\
> +#define PORT(_base, _irq)				\

Ok

>  	{						\
>  		.iobase		=3D _base,		\
>  		.irq		=3D _irq,			\
> diff --git a/drivers/tty/serial/8250/8250_fourport.c b/drivers/tty/se=
rial/8250/8250_fourport.c
> index be15826..9a04a8a 100644
> --- a/drivers/tty/serial/8250/8250_fourport.c
> +++ b/drivers/tty/serial/8250/8250_fourport.c
> @@ -10,7 +10,7 @@
>  #include <linux/init.h>
>  #include <linux/serial_8250.h>
> =20
> -#define PORT(_base,_irq)						\
> +#define PORT(_base, _irq)						\

Ok

>  	{								\
>  		.iobase		=3D _base,				\
>  		.irq		=3D _irq,					\
> diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/seria=
l/8250/8250_hp300.c
> index 2891958..38d8cb2 100644
> --- a/drivers/tty/serial/8250/8250_hp300.c
> +++ b/drivers/tty/serial/8250/8250_hp300.c
> @@ -125,6 +125,7 @@ int __init hp300_setup_serial_console(void)
>  	} else {
>  #ifdef CONFIG_HPDCA
>  		unsigned long pa =3D dio_scodetophysaddr(scode);
> +
>  		if (!pa)
>  			return 0;

Not ok.

This is a particularly good example of how bad that style is.
The relevant code is the call to dio_scode_tophysaddr() _not the if (!p=
a)_

Newline after uninitialized vars - ok.
Newline after initialized vars - not ok. Unless trivial initialization =
and
you wrote it.


> diff --git a/drivers/tty/serial/8250/8250_hub6.c b/drivers/tty/serial=
/8250/8250_hub6.c
> index a5c778e..27124e2 100644
> --- a/drivers/tty/serial/8250/8250_hub6.c
> +++ b/drivers/tty/serial/8250/8250_hub6.c
> @@ -10,7 +10,7 @@
>  #include <linux/init.h>
>  #include <linux/serial_8250.h>
> =20
> -#define HUB6(card,port)							\
> +#define HUB6(card, port)						\

ok

>  	{								\
>  		.iobase		=3D 0x302,				\
>  		.irq		=3D 3,					\
> diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/=
8250/8250_pci.c
> index 4097f3f..ed99fdf 100644
> --- a/drivers/tty/serial/8250/8250_pci.c
> +++ b/drivers/tty/serial/8250/8250_pci.c
> @@ -113,6 +113,7 @@ static int addidata_apci7800_setup(struct serial_=
private *priv,
>  				struct uart_8250_port *port, int idx)
>  {
>  	unsigned int bar =3D 0, offset =3D board->first_offset;
> +

not ok

>  	bar =3D FL_GET_BASE(board->flags);
> =20
>  	if (idx < 2) {
> @@ -1115,6 +1116,7 @@ static struct quatech_feature quatech_cards[] =3D=
 {
>  static int pci_quatech_amcc(u16 devid)
>  {
>  	struct quatech_feature *qf =3D &quatech_cards[0];
> +

not ok

>  	while (qf->devid) {
>  		if (qf->devid =3D=3D devid)
>  			return qf->amcc;
> @@ -1200,6 +1202,7 @@ static int pci_quatech_test(struct uart_8250_po=
rt *port)
>  {
>  	u8 reg;
>  	u8 qopr =3D pci_quatech_rqopr(port);
> +

Swap the declaration order and its ok. IOW,

+ 	u8 qopr =3D pci_quatech_rqopr(port);
+ 	u8 reg;
+

or even better

+ 	u8 reg, qopr;
+
+ 	qopr =3D pci_quatech_rqopr(port);

>  	pci_quatech_wqopr(port, qopr & QPCR_TEST_FOR1);
>  	reg =3D pci_quatech_rqopr(port) & 0xC0;
>  	if (reg !=3D QPCR_TEST_GET1)
> @@ -1284,8 +1287,10 @@ static int pci_quatech_init(struct pci_dev *de=
v)
>  {
>  	if (pci_quatech_amcc(dev->device)) {
>  		unsigned long base =3D pci_resource_start(dev, 0);
> +

not ok


>  		if (base) {
>  			u32 tmp;
> +

ok

>  			outl(inl(base + 0x38) | 0x00002000, base + 0x38);
>  			tmp =3D inl(base + 0x3c);
>  			outl(tmp | 0x01000000, base + 0x3c);
> @@ -4502,7 +4507,7 @@ static struct pci_device_id serial_pci_tbl[] =3D=
 {
>  		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
>  		pbn_b0_bt_2_921600 },
>  	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI958,
> -		PCI_ANY_ID , PCI_ANY_ID, 0, 0,
> +		PCI_ANY_ID, PCI_ANY_ID, 0, 0,

ok

>  		pbn_b2_8_1152000 },
> =20
>  	/*
> diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial=
/8250/8250_port.c
> index 52d82d2..ae8f993 100644
> --- a/drivers/tty/serial/8250/8250_port.c
> +++ b/drivers/tty/serial/8250/8250_port.c
> @@ -1327,6 +1327,7 @@ static void serial8250_start_tx(struct uart_por=
t *port)
> =20
>  		if (up->bugs & UART_BUG_TXEN) {
>  			unsigned char lsr;
> +

ok

>  			lsr =3D serial_in(up, UART_LSR);
>  			up->lsr_saved_flags |=3D lsr & LSR_SAVE_FLAGS;
>  			if (lsr & UART_LSR_THRE)
> @@ -1734,8 +1735,10 @@ static void wait_for_xmitr(struct uart_8250_po=
rt *up, int bits)
>  	/* Wait up to 1s for flow control if necessary */
>  	if (up->port.flags & UPF_CONS_FLOW) {
>  		unsigned int tmout;
> +

ok

>  		for (tmout =3D 1000000; tmout; tmout--) {
>  			unsigned int msr =3D serial_in(up, UART_MSR);
> +

not ok

>  			up->msr_saved_flags |=3D msr & MSR_SAVE_FLAGS;
>  			if (msr & UART_MSR_CTS)
>  				break;
> diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial=
/8250/serial_cs.c
> index 4d180c9..f5270ba 100644
> --- a/drivers/tty/serial/8250/serial_cs.c
> +++ b/drivers/tty/serial/8250/serial_cs.c
> @@ -257,7 +257,7 @@ static const struct serial_quirk quirks[] =3D {
>  };
> =20
> =20
> -static int serial_config(struct pcmcia_device * link);
> +static int serial_config(struct pcmcia_device *link);

ok

> =20
> =20
>  static void serial_remove(struct pcmcia_device *link)
> @@ -309,7 +309,7 @@ static int serial_probe(struct pcmcia_device *lin=
k)
>  	dev_dbg(&link->dev, "serial_attach()\n");
> =20
>  	/* Create new serial device */
> -	info =3D kzalloc(sizeof (*info), GFP_KERNEL);
> +	info =3D kzalloc(sizeof(*info), GFP_KERNEL);

ok

>  	if (!info)
>  		return -ENOMEM;
>  	info->p_dev =3D link;
> @@ -339,7 +339,7 @@ static void serial_detach(struct pcmcia_device *l=
ink)
> =20
>  /*=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
> =20
> -static int setup_serial(struct pcmcia_device *handle, struct serial_=
info * info,
> +static int setup_serial(struct pcmcia_device *handle, struct serial_=
info *info,

ok

>  			unsigned int iobase, int irq)
>  {
>  	struct uart_8250_port uart;
> @@ -600,7 +600,7 @@ static int serial_check_for_multi(struct pcmcia_d=
evice *p_dev,  void *priv_data)
>  }
> =20
> =20
> -static int serial_config(struct pcmcia_device * link)
> +static int serial_config(struct pcmcia_device *link)

ok

>  {
>  	struct serial_info *info =3D link->priv;
>  	int i;
> @@ -701,7 +701,7 @@ static const struct pcmcia_device_id serial_ids[]=
 =3D {
>  	PCMCIA_PFC_DEVICE_PROD_ID12(1, "LINKSYS", "PCMLM336", 0xf7cb0b07, 0=
x7a821b58),
>  	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MEGAHERTZ", "XJEM1144/CCEM1144", 0x=
f510db04, 0x52d21e1e),
>  	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MICRO RESEARCH", "COMBO-L/M-336", 0=
xb2ced065, 0x3ced0555),
> -	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001" ,0x18df0ba0 ,0x8=
31b1064),
> +	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001", 0x18df0ba0, 0x8=
31b1064),

ok


>  	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Diamon=
ds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
>  	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Hearts=
 Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
>  	PCMCIA_PFC_DEVICE_PROD_ID12(1, "PCMCIAs", "ComboCard", 0xdcfe12d3, =
0xcd8906cc),
> @@ -797,30 +797,30 @@ static const struct pcmcia_device_id serial_ids=
[] =3D {
>  	PCMCIA_DEVICE_CIS_PROD_ID123("ADVANTECH", "COMpad-32/85", "1.0", 0x=
96913a85, 0x8fbe92ae, 0x0877b627, "cis/COMpad2.cis"),
>  	PCMCIA_DEVICE_CIS_PROD_ID2("RS-COM 2P", 0xad20b156, "cis/RS-COM-2P.=
cis"),
>  	PCMCIA_DEVICE_CIS_MANF_CARD(0x0013, 0x0000, "cis/GLOBETROTTER.cis")=
,
> -	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL =
CARD: SL100  1.00.",0x19ca78af,0xf964f42b),
> -	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL =
CARD: SL100",0x19ca78af,0x71d98e83),
> -	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL =
CARD: SL232  1.00.",0x19ca78af,0x69fb7490),
> -	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL =
CARD: SL232",0x19ca78af,0xb6bc0235),
> -	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL =
CARD: CF232",0x63f2e0bd,0xb9e175d3),
> -	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL =
CARD: CF232-5",0x63f2e0bd,0xfce33442),
> -	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232",0x3beb8cf2,0x17=
1e7190),
> -	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232-5",0x3beb8cf2,0x=
20da4262),
> -	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF428",0x3beb8cf2,0xea=
5dd57d),
> -	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF500",0x3beb8cf2,0xd7=
7255fa),
> -	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: IC232",0x3beb8cf2,0x6a=
709903),
> -	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: SL232",0x3beb8cf2,0x18=
430676),
> -	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: XL232",0x3beb8cf2,0x6f=
933767),
> -	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: CF332",0x3beb8cf=
2,0x16dc1ba7),
> -	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL332",0x3beb8cf=
2,0x19816c41),
> -	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL385",0x3beb8cf=
2,0x64112029),
> -	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL432",0x3beb8cf=
2,0x1cce7ac4),
> -	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial+Parallel Port: SP230",=
0x3beb8cf2,0xdb9e58bc),
> -	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: CF332",0x3beb8cf=
2,0x16dc1ba7),
> -	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL332",0x3beb8cf=
2,0x19816c41),
> -	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL385",0x3beb8cf=
2,0x64112029),
> -	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL432",0x3beb8cf=
2,0x1cce7ac4),
> -	PCMCIA_MFC_DEVICE_PROD_ID12(2,"Elan","Serial Port: SL432",0x3beb8cf=
2,0x1cce7ac4),
> -	PCMCIA_MFC_DEVICE_PROD_ID12(3,"Elan","Serial Port: SL432",0x3beb8cf=
2,0x1cce7ac4),
> +	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL=
 CARD: SL100  1.00.", 0x19ca78af, 0xf964f42b),
> +	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL=
 CARD: SL100", 0x19ca78af, 0x71d98e83),
> +	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL=
 CARD: SL232  1.00.", 0x19ca78af, 0x69fb7490),
> +	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL=
 CARD: SL232", 0x19ca78af, 0xb6bc0235),
> +	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL=
 CARD: CF232", 0x63f2e0bd, 0xb9e175d3),
> +	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL=
 CARD: CF232-5", 0x63f2e0bd, 0xfce33442),
> +	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232", 0x3beb8cf2, 0=
x171e7190),
> +	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232-5", 0x3beb8cf2,=
 0x20da4262),
> +	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF428", 0x3beb8cf2, 0=
xea5dd57d),
> +	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF500", 0x3beb8cf2, 0=
xd77255fa),
> +	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: IC232", 0x3beb8cf2, 0=
x6a709903),
> +	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: SL232", 0x3beb8cf2, 0=
x18430676),
> +	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: XL232", 0x3beb8cf2, 0=
x6f933767),
> +	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: CF332", 0x3beb=
8cf2, 0x16dc1ba7),
> +	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL332", 0x3beb=
8cf2, 0x19816c41),
> +	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL385", 0x3beb=
8cf2, 0x64112029),
> +	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL432", 0x3beb=
8cf2, 0x1cce7ac4),
> +	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial+Parallel Port: SP230=
", 0x3beb8cf2, 0xdb9e58bc),
> +	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: CF332", 0x3beb=
8cf2, 0x16dc1ba7),
> +	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL332", 0x3beb=
8cf2, 0x19816c41),
> +	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL385", 0x3beb=
8cf2, 0x64112029),
> +	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL432", 0x3beb=
8cf2, 0x1cce7ac4),
> +	PCMCIA_MFC_DEVICE_PROD_ID12(2, "Elan", "Serial Port: SL432", 0x3beb=
8cf2, 0x1cce7ac4),
> +	PCMCIA_MFC_DEVICE_PROD_ID12(3, "Elan", "Serial Port: SL432", 0x3beb=
8cf2, 0x1cce7ac4),
>  	PCMCIA_DEVICE_MANF_CARD(0x0279, 0x950b),
>  	/* too generic */
>  	/* PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0160, 0x0002), */

ok


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From - Thu Nov 08 21:38:07 2018
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From: Peter Hurley <peter@hurleysoftware.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: Re: [PATCH 02/11] tty: serial: 8250: Fix indentation warnings
Date: Wed, 16 Dec 2015 08:49:35 -0800
Lines: 176
Approved: news@gmane.org
Message-ID: <5671961F.2080304@hurleysoftware.com>
References: <1450280177-4460-1-git-send-email-anton.wuerfel@fau.de>
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Cc: linux-serial@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffe
To: Anton Wuerfel <anton.wuerfel@fau.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:26201 gmane.linux.serial:21114 gmane.linux.kernel:2109935
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26201>

Hi Anton,

On 12/16/2015 07:36 AM, Anton Wuerfel wrote:
> Checkpatch complains about incorrect indentation of switch/case state=
ments.
> This patch fixes the corresponding warnings. Additionally some indent=
ation
> is changed to match the correct format specified in the Linux Kernel
> Coding Style.

This patch needs split; separate the "leading spaces instead of tabs" f=
rom
the "GNU-style indent level".

Personally, I don't think it's worth changing existing code to meet the
GNU indent style unless it's being rewritten for some other reason.
But Greg's the maintainer, so it's his choice.

Regards,
Peter Hurley


> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> CC: linux-kernel@i4.cs.fau.de
> ---
>  drivers/tty/serial/8250/8250_pci.c  | 31 +++++++++++++++------------=
----
>  drivers/tty/serial/8250/8250_pnp.c  |  4 ++--
>  drivers/tty/serial/8250/8250_port.c | 14 +++++++-------
>  3 files changed, 24 insertions(+), 25 deletions(-)
>=20
> diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/=
8250/8250_pci.c
> index ed99fdf..41508a5 100644
> --- a/drivers/tty/serial/8250/8250_pci.c
> +++ b/drivers/tty/serial/8250/8250_pci.c
> @@ -722,7 +722,7 @@ static int pci_ni8430_init(struct pci_dev *dev)
>  	 */
>  	pcibios_resource_to_bus(dev->bus, &region, &dev->resource[bar]);
>  	device_window =3D ((region.start + MITE_IOWBSR1_WIN_OFFSET) & 0xfff=
fff00)
> -	                | MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
> +			| MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
>  	writel(device_window, p + MITE_IOWBSR1);
> =20
>  	/* Set window access to go to RAMSEL IO address space */
> @@ -843,17 +843,16 @@ static int pci_netmos_init(struct pci_dev *dev)
>  		return 0;
> =20
>  	switch (dev->device) { /* FALLTHROUGH on all */
> -		case PCI_DEVICE_ID_NETMOS_9904:
> -		case PCI_DEVICE_ID_NETMOS_9912:
> -		case PCI_DEVICE_ID_NETMOS_9922:
> -		case PCI_DEVICE_ID_NETMOS_9900:
> -			num_serial =3D pci_netmos_9900_numports(dev);
> -			break;
> +	case PCI_DEVICE_ID_NETMOS_9904:
> +	case PCI_DEVICE_ID_NETMOS_9912:
> +	case PCI_DEVICE_ID_NETMOS_9922:
> +	case PCI_DEVICE_ID_NETMOS_9900:
> +		num_serial =3D pci_netmos_9900_numports(dev);
> +		break;
> =20
> -		default:
> -			if (num_serial =3D=3D 0 ) {
> -				moan_device("unknown NetMos/Mostech device", dev);
> -			}
> +	default:
> +		if (num_serial =3D=3D 0)
> +			moan_device("unknown NetMos/Mostech device", dev);
>  	}
> =20
>  	if (num_serial =3D=3D 0)
> @@ -1766,7 +1765,7 @@ xr17v35x_has_slave(struct serial_private *priv)
>  	const int dev_id =3D priv->dev->device;
> =20
>  	return ((dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V4358) ||
> -	        (dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
> +		(dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
>  }
> =20
>  static int
> @@ -1866,8 +1865,8 @@ pci_fastcom335_setup(struct serial_private *pri=
v,
> =20
>  static int
>  pci_wch_ch353_setup(struct serial_private *priv,
> -                    const struct pciserial_board *board,
> -                    struct uart_8250_port *port, int idx)
> +		    const struct pciserial_board *board,
> +		    struct uart_8250_port *port, int idx)
>  {
>  	port->port.flags |=3D UPF_FIXED_TYPE;
>  	port->port.type =3D PORT_16550A;
> @@ -1876,8 +1875,8 @@ pci_wch_ch353_setup(struct serial_private *priv=
,
> =20
>  static int
>  pci_wch_ch38x_setup(struct serial_private *priv,
> -                    const struct pciserial_board *board,
> -                    struct uart_8250_port *port, int idx)
> +		    const struct pciserial_board *board,
> +		    struct uart_8250_port *port, int idx)
>  {
>  	port->port.flags |=3D UPF_FIXED_TYPE;
>  	port->port.type =3D PORT_16850;
> diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/=
8250/8250_pnp.c
> index 658b392..1f18065 100644
> --- a/drivers/tty/serial/8250/8250_pnp.c
> +++ b/drivers/tty/serial/8250/8250_pnp.c
> @@ -425,8 +425,8 @@ static int check_resources(struct pnp_dev *dev)
>  static int serial_pnp_guess_board(struct pnp_dev *dev)
>  {
>  	if (!(check_name(pnp_dev_name(dev)) ||
> -		(dev->card && check_name(dev->card->name))))
> -			return -ENODEV;
> +	    (dev->card && check_name(dev->card->name))))
> +		return -ENODEV;
> =20
>  	if (check_resources(dev))
>  		return 0;
> diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial=
/8250/8250_port.c
> index ae8f993..57ad0f2 100644
> --- a/drivers/tty/serial/8250/8250_port.c
> +++ b/drivers/tty/serial/8250/8250_port.c
> @@ -52,7 +52,7 @@
>  #define DEBUG_AUTOCONF(fmt...)	do { } while (0)
>  #endif
> =20
> -#define BOTH_EMPTY 	(UART_LSR_TEMT | UART_LSR_THRE)
> +#define BOTH_EMPTY	(UART_LSR_TEMT | UART_LSR_THRE)
> =20
>  /*
>   * Here we define the default xmit fifo size used for each type of U=
ART.
> @@ -2236,9 +2236,9 @@ static void serial8250_set_divisor(struct uart_=
port *port, unsigned int baud,
>  		serial_port_out(port, 0x2, quot_frac);
>  }
> =20
> -static unsigned int
> -serial8250_get_baud_rate(struct uart_port *port, struct ktermios *te=
rmios,
> -			 struct ktermios *old)
> +static unsigned int serial8250_get_baud_rate(struct uart_port *port,
> +					     struct ktermios *termios,
> +					     struct ktermios *old)
>  {
>  	unsigned int tolerance =3D port->uartclk / 100;
> =20
> @@ -2253,9 +2253,9 @@ serial8250_get_baud_rate(struct uart_port *port=
, struct ktermios *termios,
>  				  (port->uartclk + tolerance) / 16);
>  }
> =20
> -void
> -serial8250_do_set_termios(struct uart_port *port, struct ktermios *t=
ermios,
> -		          struct ktermios *old)
> +void serial8250_do_set_termios(struct uart_port *port,
> +			       struct ktermios *termios,
> +			       struct ktermios *old)
>  {
>  	struct uart_8250_port *up =3D up_to_u8250p(port);
>  	unsigned char cval;
>=20

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From - Thu Nov 08 21:38:07 2018
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From: Peter Hurley <peter@hurleysoftware.com>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: Re: [PATCH 04/11] tty: serial: 8250: Fix multiline comment style
Date: Wed, 16 Dec 2015 08:52:28 -0800
Lines: 268
Approved: news@gmane.org
Message-ID: <567196CC.2090305@hurleysoftware.com>
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Cc: linux-serial@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffe
To: Anton Wuerfel <anton.wuerfel@fau.de>
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On 12/16/2015 07:36 AM, Anton Wuerfel wrote:
> Checkpatch outputs some warnings about incorrect comment style,
> which is fixed by this patch.
>=20

Please fix the comments in a consistent fashion. For example ...

> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> CC: linux-kernel@i4.cs.fau.de
> ---
>  drivers/tty/serial/8250/8250_ingenic.c |  6 ++-
>  drivers/tty/serial/8250/8250_pnp.c     |  6 ++-
>  drivers/tty/serial/8250/8250_port.c    | 29 ++++++-----
>  drivers/tty/serial/8250/serial_cs.c    | 92 +++++++++++++++++++-----=
----------
>  4 files changed, 75 insertions(+), 58 deletions(-)
>=20
> diff --git a/drivers/tty/serial/8250/8250_ingenic.c b/drivers/tty/ser=
ial/8250/8250_ingenic.c
> index 49394b4..c53d2501 100644
> --- a/drivers/tty/serial/8250/8250_ingenic.c
> +++ b/drivers/tty/serial/8250/8250_ingenic.c
> @@ -153,13 +153,15 @@ static void ingenic_uart_serial_out(struct uart=
_port *p, int offset, int value)
> =20
>  	case UART_IER:
>  		/* Enable receive timeout interrupt with the
> -		 * receive line status interrupt */
> +		 * receive line status interrupt
> +		 */

This isn't the same style as ...

>  		value |=3D (value & 0x4) << 2;
>  		break;
> =20
>  	case UART_MCR:
>  		/* If we have enabled modem status IRQs we should enable modem
> -		 * mode. */
> +		 * mode.
> +		 */
>  		ier =3D p->serial_in(p, UART_IER);
> =20
>  		if (ier & UART_IER_MSI)
> diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/=
8250/8250_pnp.c
> index 1f18065..2731031 100644
> --- a/drivers/tty/serial/8250/8250_pnp.c
> +++ b/drivers/tty/serial/8250/8250_pnp.c
> @@ -367,8 +367,10 @@ static const struct pnp_device_id pnp_dev_table[=
] =3D {
>  	{	"PNPCXXX",		UNKNOWN_DEV	},
>  	/* More unknown PnP modems */
>  	{	"PNPDXXX",		UNKNOWN_DEV	},
> -	/* Winbond CIR port, should not be probed. We should keep track
> -	   of it to prevent the legacy serial driver from probing it */
> +	/*
> +	 * Winbond CIR port, should not be probed. We should keep track
> +	 * of it to prevent the legacy serial driver from probing it
> +	 */

this style.

>  	{	"WEC1022",		CIR_PORT	},
>  	/*
>  	 * SMSC IrCC SIR/FIR port, should not be probed by serial driver
> diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial=
/8250/8250_port.c
> index 57ad0f2..0ec823e 100644
> --- a/drivers/tty/serial/8250/8250_port.c
> +++ b/drivers/tty/serial/8250/8250_port.c
> @@ -250,9 +250,11 @@ static const struct serial8250_config uart_confi=
g[] =3D {
>  		.fcr		=3D UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
>  		.flags		=3D UART_CAP_FIFO | UART_CAP_AFE,
>  	},
> -/* tx_loadsz is set to 63-bytes instead of 64-bytes to implement
> -workaround of errata A-008006 which states that tx_loadsz should  be
> -configured less than Maximum supported fifo bytes */
> +	/*
> +	 * tx_loadsz is set to 63-bytes instead of 64-bytes to implement
> +	 * workaround of errata A-008006 which states that tx_loadsz should=
 be
> +	 * configured less than Maximum supported fifo bytes
> +	 */
>  	[PORT_16550A_FSL64] =3D {
>  		.name		=3D "16550A_FSL64",
>  		.fifo_size	=3D 64,
> @@ -1970,16 +1972,17 @@ int serial8250_do_startup(struct uart_port *p=
ort)
> =20
>  	serial8250_set_mctrl(port, port->mctrl);
> =20
> -	/* Serial over Lan (SoL) hack:
> -	   Intel 8257x Gigabit ethernet chips have a
> -	   16550 emulation, to be used for Serial Over Lan.
> -	   Those chips take a longer time than a normal
> -	   serial device to signalize that a transmission
> -	   data was queued. Due to that, the above test generally
> -	   fails. One solution would be to delay the reading of
> -	   iir. However, this is not reliable, since the timeout
> -	   is variable. So, let's just don't test if we receive
> -	   TX irq. This way, we'll never enable UART_BUG_TXEN.
> +	/*
> +	 * Serial over Lan (SoL) hack:
> +	 * Intel 8257x Gigabit ethernet chips have a
> +	 * 16550 emulation, to be used for Serial Over Lan.
> +	 * Those chips take a longer time than a normal
> +	 * serial device to signalize that a transmission
> +	 * data was queued. Due to that, the above test generally
> +	 * fails. One solution would be to delay the reading of
> +	 * iir. However, this is not reliable, since the timeout
> +	 * is variable. So, let's just don't test if we receive
> +	 * TX irq. This way, we'll never enable UART_BUG_TXEN.
>  	 */

Might as well unwrap this to max line length too.


>  	if (up->port.flags & UPF_NO_TXEN_TEST)
>  		goto dont_test_tx_en;
> diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial=
/8250/serial_cs.c
> index f5270ba..a4bdcf6 100644
> --- a/drivers/tty/serial/8250/serial_cs.c
> +++ b/drivers/tty/serial/8250/serial_cs.c
> @@ -1,35 +1,37 @@
> -/*=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> -
> -    A driver for PCMCIA serial devices
> -
> -    serial_cs.c 1.134 2002/05/04 05:48:53
> -
> -    The contents of this file are subject to the Mozilla Public
> -    License Version 1.1 (the "License"); you may not use this file
> -    except in compliance with the License. You may obtain a copy of
> -    the License at http://www.mozilla.org/MPL/
> -
> -    Software distributed under the License is distributed on an "AS
> -    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
> -    implied. See the License for the specific language governing
> -    rights and limitations under the License.
> -
> -    The initial developer of the original code is David A. Hinds
> -    <dahinds@users.sourceforge.net>.  Portions created by David A. H=
inds
> -    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
> -
> -    Alternatively, the contents of this file may be used under the
> -    terms of the GNU General Public License version 2 (the "GPL"), i=
n which
> -    case the provisions of the GPL are applicable instead of the
> -    above.  If you wish to allow the use of your version of this fil=
e
> -    only under the terms of the GPL and not to allow others to use
> -    your version of this file under the MPL, indicate your decision
> -    by deleting the provisions above and replace them with the notic=
e
> -    and other provisions required by the GPL.  If you do not delete
> -    the provisions above, a recipient may use your version of this
> -    file under either the MPL or the GPL.
> -   =20
> -=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
> +/*
> + * =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> + *
> + * A driver for PCMCIA serial devices
> + *
> + * serial_cs.c 1.134 2002/05/04 05:48:53
> + *
> + * The contents of this file are subject to the Mozilla Public
> + * License Version 1.1 (the "License"); you may not use this file
> + * except in compliance with the License. You may obtain a copy of
> + * the License at http://www.mozilla.org/MPL/
> + *
> + * Software distributed under the License is distributed on an "AS
> + * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
> + * implied. See the License for the specific language governing
> + * rights and limitations under the License.
> + *
> + * The initial developer of the original code is David A. Hinds
> + * <dahinds@users.sourceforge.net>.  Portions created by David A. Hi=
nds
> + * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
> + *
> + * Alternatively, the contents of this file may be used under the
> + * terms of the GNU General Public License version 2 (the "GPL"), in=
 which
> + * case the provisions of the GPL are applicable instead of the
> + * above.  If you wish to allow the use of your version of this file
> + * only under the terms of the GPL and not to allow others to use
> + * your version of this file under the MPL, indicate your decision
> + * by deleting the provisions above and replace them with the notice
> + * and other provisions required by the GPL.  If you do not delete
> + * the provisions above, a recipient may use your version of this
> + * file under either the MPL or the GPL.
> + *
> + * =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> + */
> =20
>  #include <linux/module.h>
>  #include <linux/moduleparam.h>
> @@ -441,16 +443,20 @@ static int simple_config(struct pcmcia_device *=
link)
>  	struct serial_info *info =3D link->priv;
>  	int i =3D -ENODEV, try;
> =20
> -	/* First pass: look for a config entry that looks normal.
> -	 * Two tries: without IO aliases, then with aliases */
> +	/*
> +	 * First pass: look for a config entry that looks normal.
> +	 * Two tries: without IO aliases, then with aliases
> +	 */
>  	link->config_flags |=3D CONF_AUTO_SET_VPP;
>  	for (try =3D 0; try < 4; try++)
>  		if (!pcmcia_loop_config(link, simple_config_check, &try))
>  			goto found_port;
> =20
> -	/* Second pass: try to find an entry that isn't picky about
> -	   its base address, then try to grab any standard serial port
> -	   address, and finally try to get any free port. */
> +	/*
> +	 * Second pass: try to find an entry that isn't picky about
> +	 * its base address, then try to grab any standard serial port
> +	 * address, and finally try to get any free port.
> +	 */
>  	if (!pcmcia_loop_config(link, simple_config_check_notpicky, NULL))
>  		goto found_port;
> =20
> @@ -480,8 +486,10 @@ static int multi_config_check(struct pcmcia_devi=
ce *p_dev, void *priv_data)
>  	if (p_dev->resource[1]->end)
>  		return -EINVAL;
> =20
> -	/* The quad port cards have bad CIS's, so just look for a
> -	   window larger than 8 ports and assume it will be right */
> +	/*
> +	 * The quad port cards have bad CIS's, so just look for a
> +	 * window larger than 8 ports and assume it will be right
> +	 */
>  	if (p_dev->resource[0]->end <=3D 8)
>  		return -EINVAL;
> =20
> @@ -623,8 +631,10 @@ static int serial_config(struct pcmcia_device *l=
ink)
>  			break;
>  		}
> =20
> -	/* Another check for dual-serial cards: look for either serial or
> -	   multifunction cards that ask for appropriate IO port ranges */
> +	/*
> +	 * Another check for dual-serial cards: look for either serial or
> +	 * multifunction cards that ask for appropriate IO port ranges
> +	 */
>  	if ((info->multi =3D=3D 0) &&
>  	    (link->has_func_id) &&
>  	    (link->socket->pcmcia_pfc =3D=3D 0) &&
>=20


From - Thu Nov 08 21:38:07 2018
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From: Peter Hurley <peter@hurleysoftware.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: Re: [PATCH 10/11] tty: serial: 8250: Replace printk by pr_*
Date: Wed, 16 Dec 2015 09:00:26 -0800
Lines: 196
Approved: news@gmane.org
Message-ID: <567198AA.2030503@hurleysoftware.com>
References: <1450280177-4460-1-git-send-email-anton.wuerfel@fau.de>
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Cc: linux-serial@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffe
To: Anton Wuerfel <anton.wuerfel@fau.de>
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Hi Anton,

On 12/16/2015 07:36 AM, Anton Wuerfel wrote:
> This patch replaces printk by the corresponding variant of pr_* in or=
der to
> fix checkpatch warnings.

Comments below.

> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> CC: linux-kernel@i4.cs.fau.de
> ---
>  drivers/tty/serial/8250/8250_core.c  |  5 ++---
>  drivers/tty/serial/8250/8250_gsc.c   |  6 ++----
>  drivers/tty/serial/8250/8250_hp300.c | 14 +++++++-------
>  drivers/tty/serial/8250/8250_pnp.c   |  6 +++---
>  drivers/tty/serial/8250/8250_port.c  |  3 +--
>  5 files changed, 15 insertions(+), 19 deletions(-)
>=20
> diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial=
/8250/8250_core.c
> index 2b3731f..b5e0c48 100644
> --- a/drivers/tty/serial/8250/8250_core.c
> +++ b/drivers/tty/serial/8250/8250_core.c
> @@ -1095,9 +1095,8 @@ static int __init serial8250_init(void)
> =20
>  	serial8250_isa_init_ports();
> =20
> -	printk(KERN_INFO "Serial: 8250/16550 driver, "
> -		"%d ports, IRQ sharing %sabled\n", nr_uarts,
> -		share_irqs ? "en" : "dis");
> +	pr_info("Serial: 8250/16550 driver, %d ports, IRQ sharing %sabled\n=
",
> +		nr_uarts, share_irqs ? "en" : "dis");
> =20
>  #ifdef CONFIG_SPARC
>  	ret =3D sunserial_register_minors(&serial8250_reg, UART_NR);
> diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/=
8250/8250_gsc.c
> index 2e3ea1a..a9b63d0 100644
> --- a/drivers/tty/serial/8250/8250_gsc.c
> +++ b/drivers/tty/serial/8250/8250_gsc.c
> @@ -42,8 +42,7 @@ static int __init serial_init_chip(struct parisc_de=
vice *dev)
>  		 * the user what they're missing.
>  		 */
>  		if (parisc_parent(dev)->id.hw_type !=3D HPHW_IOA)
> -			printk(KERN_INFO
> -				"Serial: device 0x%llx not configured.\n"
> +			pr_info("Serial: device 0x%llx not configured.\n"
>  				"Enable support for Wax, Lasi, Asp or Dino.\n",
>  				(unsigned long long)dev->hpa.start);
>  		return -ENODEV;
> @@ -66,8 +65,7 @@ static int __init serial_init_chip(struct parisc_de=
vice *dev)
> =20
>  	err =3D serial8250_register_8250_port(&uart);
>  	if (err < 0) {
> -		printk(KERN_WARNING
> -			"serial8250_register_8250_port returned error %d\n", err);
> +		pr_warn("serial8250_register_8250_port returned error %d\n", err);
>  		iounmap(uart.port.membase);
>  		return err;
>  	}
> diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/seria=
l/8250/8250_hp300.c
> index 52c43da..85b574896 100644
> --- a/drivers/tty/serial/8250/8250_hp300.c
> +++ b/drivers/tty/serial/8250/8250_hp300.c
> @@ -110,7 +110,7 @@ int __init hp300_setup_serial_console(void)
>  	/* Check for APCI console */
>  	if (scode =3D=3D 256) {
>  #ifdef CONFIG_HPAPCI
> -		printk(KERN_INFO "Serial console is HP APCI 1\n");
> +		pr_info("Serial console is HP APCI 1\n");
> =20
>  		port.uartclk =3D HPAPCI_BAUD_BASE * 16;
>  		port.mapbase =3D (FRODO_BASE + FRODO_APCI_OFFSET(1));
> @@ -118,7 +118,7 @@ int __init hp300_setup_serial_console(void)
>  		port.regshift =3D 2;
>  		add_preferred_console("ttyS", port.line, "9600n8");
>  #else
> -		printk(KERN_WARNING "Serial console is APCI but support is disable=
d (CONFIG_HPAPCI)!\n");
> +		pr_warn("Serial console is APCI but support is disabled (CONFIG_HP=
APCI)!\n");
>  		return 0;
>  #endif
>  	} else {
> @@ -128,7 +128,7 @@ int __init hp300_setup_serial_console(void)
>  		if (!pa)
>  			return 0;
> =20
> -		printk(KERN_INFO "Serial console is HP DCA at select code %d\n", s=
code);
> +		pr_info("Serial console is HP DCA at select code %d\n", scode);
> =20
>  		port.uartclk =3D HPDCA_BAUD_BASE * 16;
>  		port.mapbase =3D (pa + UART_OFFSET);
> @@ -142,13 +142,13 @@ int __init hp300_setup_serial_console(void)
>  		if (DIO_ID(pa + DIO_VIRADDRBASE) & 0x80)
>  			add_preferred_console("ttyS", port.line, "9600n8");
>  #else
> -		printk(KERN_WARNING "Serial console is DCA but support is disabled=
 (CONFIG_HPDCA)!\n");
> +		pr_warn("Serial console is DCA but support is disabled (CONFIG_HPD=
CA)!\n");
>  		return 0;
>  #endif
>  	}
> =20
>  	if (early_serial_setup(&port) < 0)
> -		printk(KERN_WARNING "hp300_setup_serial_console(): early_serial_se=
tup() failed.\n");
> +		pr_warn("hp300_setup_serial_console(): early_serial_setup() failed=
=2E\n");
>  	return 0;
>  }
>  #endif /* CONFIG_SERIAL_8250_CONSOLE */




> @@ -180,7 +180,7 @@ static int hpdca_init_one(struct dio_dev *d,
>  	line =3D serial8250_register_8250_port(&uart);
> =20
>  	if (line < 0) {
> -		printk(KERN_NOTICE "8250_hp300: register_serial() DCA scode %d"
> +		pr_notice("8250_hp300: register_serial() DCA scode %d"
>  		       " irq %d failed\n", d->scode, uart.port.irq);
>  		return -ENOMEM;
>  	}
> @@ -261,7 +261,7 @@ static int __init hp300_8250_init(void)
>  		line =3D serial8250_register_8250_port(&uart);
> =20
>  		if (line < 0) {
> -			printk(KERN_NOTICE "8250_hp300: register_serial() APCI"
> +			pr_notice("8250_hp300: register_serial() APCI"
>  			       " %d irq %d failed\n", i, uart.port.irq);

Missed these multi-line strings in your previous patch
"tty: serial: 8250: Fix multi-line strings"


>  			kfree(port);
>  			continue;
> diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/=
8250/8250_pnp.c
> index 2731031..3811c67 100644
> --- a/drivers/tty/serial/8250/8250_pnp.c
> +++ b/drivers/tty/serial/8250/8250_pnp.c
> @@ -465,9 +465,9 @@ serial_pnp_probe(struct pnp_dev *dev, const struc=
t pnp_device_id *dev_id)
>  		return -ENODEV;
> =20
>  #ifdef SERIAL_DEBUG_PNP
> -	printk(KERN_DEBUG
> -		"Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
> -		       uart.port.iobase, uart.port.mapbase, uart.port.irq, uart.po=
rt.iotype);
> +	pr_debug("Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
> +		 uart.port.iobase, uart.port.mapbase,
> +		 uart.port.irq, uart.port.iotype);

Note that printk(KERN_DEBUG) and pr_debug() have different behavior;
you should note what the behavioral difference is in the changelog.


>  #endif
>  	if (flags & CIR_PORT) {
>  		uart.port.flags |=3D UPF_FIXED_PORT | UPF_FIXED_TYPE;
> diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial=
/8250/8250_port.c
> index 0ec823e..1b2aaf9 100644
> --- a/drivers/tty/serial/8250/8250_port.c
> +++ b/drivers/tty/serial/8250/8250_port.c
> @@ -1222,8 +1222,7 @@ static void autoconfig(struct uart_8250_port *u=
p)
>  out_lock:
>  	spin_unlock_irqrestore(&port->lock, flags);
>  	if (up->capabilities !=3D old_capabilities) {
> -		printk(KERN_WARNING
> -		       "ttyS%d: detected caps %08x should be %08x\n",
> +		pr_warn("ttyS%d: detected caps %08x should be %08x\n",
>  		       serial_index(port), old_capabilities,
>  		       up->capabilities);
>  	}
>=20

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From - Thu Nov 08 21:38:07 2018
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From: Peter Hurley <peter@hurleysoftware.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: Re: [PATCH 11/11] tty: serial: 8250: Delete commented code
Date: Wed, 16 Dec 2015 09:05:26 -0800
Lines: 57
Approved: news@gmane.org
Message-ID: <567199D6.4050106@hurleysoftware.com>
References: <1450280177-4460-1-git-send-email-anton.wuerfel@fau.de>
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>
To: Anton Wuerfel <anton.wuerfel@fau.de>, linux-serial@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26204>

Hi Anton,

On 12/16/2015 07:36 AM, Anton Wuerfel wrote:
> This patch removes code which has been commented out. It serves no
> documentary purposes and decreases the readability of the remaining c=
ode.
> Furthermore the comment style causes checkpatch warnings. If this cod=
e
> should ever be needed again, git keeps track of it.

This is bad idea.

I can count on one hand the number of times I've tried to find deleted
code in git. How would you go about finding all deleted sub-vendor
ids in the 16.5M-line Linux source tree, say since 2.6.32?

Regards,
Peter Hurley

> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> CC: linux-kernel@i4.cs.fau.de
> ---
>  drivers/tty/serial/8250/8250_pci.c | 7 -------
>  1 file changed, 7 deletions(-)
>=20
> diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/=
8250/8250_pci.c
> index 3bc0303..9136f0f 100644
> --- a/drivers/tty/serial/8250/8250_pci.c
> +++ b/drivers/tty/serial/8250/8250_pci.c
> @@ -4928,16 +4928,9 @@ static struct pci_device_id serial_pci_tbl[] =3D=
 {
>  	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF0,
>  		0x1208, 0x0004, 0, 0,
>  		pbn_b0_4_921600 },
> -/*	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF0,
> -		0x1402, 0x0002, 0, 0,
> -		pbn_b0_2_921600 }, */
> -/*	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF0,
> -		0x1404, 0x0004, 0, 0,
> -		pbn_b0_4_921600 }, */
>  	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF1,
>  		0x1208, 0x0004, 0, 0,
>  		pbn_b0_4_921600 },
> -
>  	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF2,
>  		0x1204, 0x0004, 0, 0,
>  		pbn_b0_4_921600 },
>=20

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From - Thu Nov 08 21:38:07 2018
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From: Peter Hurley <peter@hurleysoftware.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: Re: [PATCH 06/11] tty: serial: 8250: Move EXPORT_SYMBOL to function
Date: Wed, 16 Dec 2015 09:06:47 -0800
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Approved: news@gmane.org
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>
To: Anton Wuerfel <anton.wuerfel@fau.de>, linux-serial@vger.kernel.org
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On 12/16/2015 07:36 AM, Anton Wuerfel wrote:
> This patch moves EXPORT_SYMBOL macros directly after the definition o=
f
> the corresponding symbol to remove checkpatch warnings.

Ok.


> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> CC: linux-kernel@i4.cs.fau.de
> ---
>  drivers/tty/serial/8250/8250_core.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
>=20
> diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial=
/8250/8250_core.c
> index 89a20c9..67147b2 100644
> --- a/drivers/tty/serial/8250/8250_core.c
> +++ b/drivers/tty/serial/8250/8250_core.c
> @@ -764,6 +764,7 @@ void serial8250_suspend_port(int line)
> =20
>  	uart_suspend_port(&serial8250_reg, port);
>  }
> +EXPORT_SYMBOL(serial8250_suspend_port);
> =20
>  /**
>   *	serial8250_resume_port - resume one serial port
> @@ -789,6 +790,7 @@ void serial8250_resume_port(int line)
>  	}
>  	uart_resume_port(&serial8250_reg, port);
>  }
> +EXPORT_SYMBOL(serial8250_resume_port);
> =20
>  /*
>   * Register a set of serial devices attached to a platform device.  =
The
> @@ -1168,9 +1170,6 @@ static void __exit serial8250_exit(void)
>  module_init(serial8250_init);
>  module_exit(serial8250_exit);
> =20
> -EXPORT_SYMBOL(serial8250_suspend_port);
> -EXPORT_SYMBOL(serial8250_resume_port);
> -
>  MODULE_LICENSE("GPL");
>  MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
> =20
>=20

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From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.mips.general,gmane.linux.kernel
Subject: [RFC PATCH urcu on mips, parisc] Fix: compat_futex should work-around futex signal-restart kernel bug
Date: Wed, 16 Dec 2015 17:09:52 -0500
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When testing liburcu on a 3.18 Linux kernel, 2-core MIPS (cpu model :
Ingenic JZRISC V4.15  FPU V0.0), we notice that a blocked sys_futex
FUTEX_WAIT returns -1, errno=ENOSYS when interrupted by a SA_RESTART
signal handler. This spurious ENOSYS behavior causes hangs in liburcu
0.9.x. Running a MIPS 3.18 kernel under a QEMU emulator exhibits the
same behavior. This might affect earlier kernels.

This issue appears to be fixed in 3.18.y stable kernels and 3.19, but
nevertheless, we should try to handle this kernel bug more gracefully
than a user-space hang due to unexpected spurious ENOSYS return value.

Therefore, fallback on the "async-safe" version of compat_futex in those
situations where FUTEX_WAIT returns ENOSYS. This async-safe fallback has
the nice property of being OK to use concurrently with other FUTEX_WAKE
and FUTEX_WAIT futex() calls, because it's simply a busy-wait scheme.

We suspect that parisc might be affected by a similar issue (Debian
build bots reported a similar hang on both mips and parisc), but we do
not have access to the hardware required to test this hypothesis.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: Michael Jeanson <mjeanson@efficios.com>
CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
CC: Ralf Baechle <ralf@linux-mips.org>
CC: linux-mips@linux-mips.org
CC: linux-kernel@vger.kernel.org
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: Helge Deller <deller@gmx.de>
CC: linux-parisc@vger.kernel.org
---
 compat_futex.c |  2 ++
 urcu/futex.h   | 12 +++++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/compat_futex.c b/compat_futex.c
index b7f78f0..9e918fe 100644
--- a/compat_futex.c
+++ b/compat_futex.c
@@ -111,6 +111,8 @@ end:
  * _ASYNC SIGNAL-SAFE_.
  * For now, timeout, uaddr2 and val3 are unused.
  * Waiter will busy-loop trying to read the condition.
+ * It is OK to use compat_futex_async() on a futex address on which
+ * futex() WAKE operations are also performed.
  */
 
 int compat_futex_async(int32_t *uaddr, int op, int32_t val,
diff --git a/urcu/futex.h b/urcu/futex.h
index 4d16cfa..a17eda8 100644
--- a/urcu/futex.h
+++ b/urcu/futex.h
@@ -73,7 +73,17 @@ static inline int futex_noasync(int32_t *uaddr, int op, int32_t val,
 
 	ret = futex(uaddr, op, val, timeout, uaddr2, val3);
 	if (caa_unlikely(ret < 0 && errno == ENOSYS)) {
-		return compat_futex_noasync(uaddr, op, val, timeout,
+		/*
+		 * The fallback on ENOSYS is the async-safe version of
+		 * the compat futex implementation, because the
+		 * async-safe compat implementation allows being used
+		 * concurrently with calls to futex(). Indeed, sys_futex
+		 * FUTEX_WAIT, on some architectures (e.g. mips), within
+		 * a given process, spuriously return ENOSYS due to
+		 * signal restart bugs on some kernel versions (e.g.
+		 * Linux kernel 3.18 and possibly earlier).
+		 */
+		return compat_futex_async(uaddr, op, val, timeout,
 				uaddr2, val3);
 	}
 	return ret;
-- 
2.1.4

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Subject: Re: [RFC PATCH urcu on mips, parisc] Fix: compat_futex should
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------=_Part_259005_501537116.1450356852692
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----- On Dec 16, 2015, at 5:09 PM, Mathieu Desnoyers mathieu.desnoyers@efficios.com wrote:

> When testing liburcu on a 3.18 Linux kernel, 2-core MIPS (cpu model :
> Ingenic JZRISC V4.15  FPU V0.0), we notice that a blocked sys_futex
> FUTEX_WAIT returns -1, errno=ENOSYS when interrupted by a SA_RESTART
> signal handler. This spurious ENOSYS behavior causes hangs in liburcu
> 0.9.x. Running a MIPS 3.18 kernel under a QEMU emulator exhibits the
> same behavior. This might affect earlier kernels.
> 
> This issue appears to be fixed in 3.18.y stable kernels and 3.19, but
> nevertheless, we should try to handle this kernel bug more gracefully
> than a user-space hang due to unexpected spurious ENOSYS return value.

It's actually fixed in 3.19, but not in 3.18.y stable kernels. The
Linux kernel upstream fix commit is:
e967ef02 "MIPS: Fix restart of indirect syscalls"

I've created a small test program that could also be used on parisc
to check if it suffers from the same issue (see attached).

On bogus mips kernels, we see the following output:
[OK] Test program with pid: 5748 SIGUSR1 handler
[FAIL] futex returns -1, Function not implemented

Let me know if someone can try it out on a parisc kernel.

Thanks!

Mathieu

> 
> Therefore, fallback on the "async-safe" version of compat_futex in those
> situations where FUTEX_WAIT returns ENOSYS. This async-safe fallback has
> the nice property of being OK to use concurrently with other FUTEX_WAKE
> and FUTEX_WAIT futex() calls, because it's simply a busy-wait scheme.
> 
> We suspect that parisc might be affected by a similar issue (Debian
> build bots reported a similar hang on both mips and parisc), but we do
> not have access to the hardware required to test this hypothesis.
> 
> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> CC: Michael Jeanson <mjeanson@efficios.com>
> CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> CC: Ralf Baechle <ralf@linux-mips.org>
> CC: linux-mips@linux-mips.org
> CC: linux-kernel@vger.kernel.org
> CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
> CC: Helge Deller <deller@gmx.de>
> CC: linux-parisc@vger.kernel.org
> ---
> compat_futex.c |  2 ++
> urcu/futex.h   | 12 +++++++++++-
> 2 files changed, 13 insertions(+), 1 deletion(-)
> 
> diff --git a/compat_futex.c b/compat_futex.c
> index b7f78f0..9e918fe 100644
> --- a/compat_futex.c
> +++ b/compat_futex.c
> @@ -111,6 +111,8 @@ end:
>  * _ASYNC SIGNAL-SAFE_.
>  * For now, timeout, uaddr2 and val3 are unused.
>  * Waiter will busy-loop trying to read the condition.
> + * It is OK to use compat_futex_async() on a futex address on which
> + * futex() WAKE operations are also performed.
>  */
> 
> int compat_futex_async(int32_t *uaddr, int op, int32_t val,
> diff --git a/urcu/futex.h b/urcu/futex.h
> index 4d16cfa..a17eda8 100644
> --- a/urcu/futex.h
> +++ b/urcu/futex.h
> @@ -73,7 +73,17 @@ static inline int futex_noasync(int32_t *uaddr, int op,
> int32_t val,
> 
> 	ret = futex(uaddr, op, val, timeout, uaddr2, val3);
> 	if (caa_unlikely(ret < 0 && errno == ENOSYS)) {
> -		return compat_futex_noasync(uaddr, op, val, timeout,
> +		/*
> +		 * The fallback on ENOSYS is the async-safe version of
> +		 * the compat futex implementation, because the
> +		 * async-safe compat implementation allows being used
> +		 * concurrently with calls to futex(). Indeed, sys_futex
> +		 * FUTEX_WAIT, on some architectures (e.g. mips), within
> +		 * a given process, spuriously return ENOSYS due to
> +		 * signal restart bugs on some kernel versions (e.g.
> +		 * Linux kernel 3.18 and possibly earlier).
> +		 */
> +		return compat_futex_async(uaddr, op, val, timeout,
> 				uaddr2, val3);
> 	}
> 	return ret;
> --
> 2.1.4

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com

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From: Ed Swierk <eswierk@skyportsystems.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.mips.general,gmane.linux.kernel
Subject: Re: [RFC PATCH urcu on mips, parisc] Fix: compat_futex should
 work-around futex signal-restart kernel bug
Date: Thu, 17 Dec 2015 05:16:57 -0800
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References: <1450303792-27470-1-git-send-email-mathieu.desnoyers@efficios.com> <663068619.259007.1450356852694.JavaMail.zimbra@efficios.com>
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Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	Jon Bernard <jbernard@debian.org>,
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	Helge Deller <deller@gmx.de>,
	linux-parisc <linux-parisc@vger.kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:26208 gmane.linux.ports.mips.general:51830 gmane.linux.kernel:2110730
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26208>

I believe e967ef02 "MIPS: Fix restart of indirect syscalls" should be
backported to all stable kernels.

It would be a surprising coincidence if parisc suffers from the same problem.

--Ed


On Thu, Dec 17, 2015 at 4:54 AM, Mathieu Desnoyers
<mathieu.desnoyers@efficios.com> wrote:
> ----- On Dec 16, 2015, at 5:09 PM, Mathieu Desnoyers mathieu.desnoyers@efficios.com wrote:
>
>> When testing liburcu on a 3.18 Linux kernel, 2-core MIPS (cpu model :
>> Ingenic JZRISC V4.15  FPU V0.0), we notice that a blocked sys_futex
>> FUTEX_WAIT returns -1, errno=ENOSYS when interrupted by a SA_RESTART
>> signal handler. This spurious ENOSYS behavior causes hangs in liburcu
>> 0.9.x. Running a MIPS 3.18 kernel under a QEMU emulator exhibits the
>> same behavior. This might affect earlier kernels.
>>
>> This issue appears to be fixed in 3.18.y stable kernels and 3.19, but
>> nevertheless, we should try to handle this kernel bug more gracefully
>> than a user-space hang due to unexpected spurious ENOSYS return value.
>
> It's actually fixed in 3.19, but not in 3.18.y stable kernels. The
> Linux kernel upstream fix commit is:
> e967ef02 "MIPS: Fix restart of indirect syscalls"
>
> I've created a small test program that could also be used on parisc
> to check if it suffers from the same issue (see attached).
>
> On bogus mips kernels, we see the following output:
> [OK] Test program with pid: 5748 SIGUSR1 handler
> [FAIL] futex returns -1, Function not implemented
>
> Let me know if someone can try it out on a parisc kernel.
>
> Thanks!
>
> Mathieu
>
>>
>> Therefore, fallback on the "async-safe" version of compat_futex in those
>> situations where FUTEX_WAIT returns ENOSYS. This async-safe fallback has
>> the nice property of being OK to use concurrently with other FUTEX_WAKE
>> and FUTEX_WAIT futex() calls, because it's simply a busy-wait scheme.
>>
>> We suspect that parisc might be affected by a similar issue (Debian
>> build bots reported a similar hang on both mips and parisc), but we do
>> not have access to the hardware required to test this hypothesis.
>>
>> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
>> CC: Michael Jeanson <mjeanson@efficios.com>
>> CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
>> CC: Ralf Baechle <ralf@linux-mips.org>
>> CC: linux-mips@linux-mips.org
>> CC: linux-kernel@vger.kernel.org
>> CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
>> CC: Helge Deller <deller@gmx.de>
>> CC: linux-parisc@vger.kernel.org
>> ---
>> compat_futex.c |  2 ++
>> urcu/futex.h   | 12 +++++++++++-
>> 2 files changed, 13 insertions(+), 1 deletion(-)
>>
>> diff --git a/compat_futex.c b/compat_futex.c
>> index b7f78f0..9e918fe 100644
>> --- a/compat_futex.c
>> +++ b/compat_futex.c
>> @@ -111,6 +111,8 @@ end:
>>  * _ASYNC SIGNAL-SAFE_.
>>  * For now, timeout, uaddr2 and val3 are unused.
>>  * Waiter will busy-loop trying to read the condition.
>> + * It is OK to use compat_futex_async() on a futex address on which
>> + * futex() WAKE operations are also performed.
>>  */
>>
>> int compat_futex_async(int32_t *uaddr, int op, int32_t val,
>> diff --git a/urcu/futex.h b/urcu/futex.h
>> index 4d16cfa..a17eda8 100644
>> --- a/urcu/futex.h
>> +++ b/urcu/futex.h
>> @@ -73,7 +73,17 @@ static inline int futex_noasync(int32_t *uaddr, int op,
>> int32_t val,
>>
>>       ret = futex(uaddr, op, val, timeout, uaddr2, val3);
>>       if (caa_unlikely(ret < 0 && errno == ENOSYS)) {
>> -             return compat_futex_noasync(uaddr, op, val, timeout,
>> +             /*
>> +              * The fallback on ENOSYS is the async-safe version of
>> +              * the compat futex implementation, because the
>> +              * async-safe compat implementation allows being used
>> +              * concurrently with calls to futex(). Indeed, sys_futex
>> +              * FUTEX_WAIT, on some architectures (e.g. mips), within
>> +              * a given process, spuriously return ENOSYS due to
>> +              * signal restart bugs on some kernel versions (e.g.
>> +              * Linux kernel 3.18 and possibly earlier).
>> +              */
>> +             return compat_futex_async(uaddr, op, val, timeout,
>>                               uaddr2, val3);
>>       }
>>       return ret;
>> --
>> 2.1.4
>
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> http://www.efficios.com
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From - Thu Nov 08 21:38:07 2018
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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: Re: [PATCH 08/11] tty: serial: 8250: Add parentheses to macro
Date: Thu, 17 Dec 2015 17:16:41 +0200
Organization: Intel Finland Oy
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>
To: Anton Wuerfel <anton.wuerfel@fau.de>, linux-serial@vger.kernel.org
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On Wed, 2015-12-16 at 16:36 +0100, Anton Wuerfel wrote:
> This patch fixes a checkpatch warning caused by missing parentheses
> in the definition of a macro.
>=20
> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> CC: linux-kernel@i4.cs.fau.de
> ---
> =C2=A0drivers/tty/serial/8250/8250_core.c | 2 +-
> =C2=A01 file changed, 1 insertion(+), 1 deletion(-)
>=20
> diff --git a/drivers/tty/serial/8250/8250_core.c
> b/drivers/tty/serial/8250/8250_core.c
> index 67147b2..3c29530 100644
> --- a/drivers/tty/serial/8250/8250_core.c
> +++ b/drivers/tty/serial/8250/8250_core.c
> @@ -686,7 +686,7 @@ static int __init univ8250_console_init(void)
> =C2=A0}
> =C2=A0console_initcall(univ8250_console_init);
> =C2=A0
> -#define SERIAL8250_CONSOLE	&univ8250_console
> +#define SERIAL8250_CONSOLE	(&univ8250_console)

What about the rest of the drivers under drivers/tty/serial?

What do you propose to do with, for example, the following

drivers/tty/serial/cpm_uart/cpm_uart_core.c:1392:#define
CPM_UART_CONSOLE=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0&cpm_scc_uart=
_console
drivers/tty/serial/cpm_uart/cpm_uart_core.c:1394:#define
CPM_UART_CONSOLE=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0NULL

> =C2=A0#else
> =C2=A0#define SERIAL8250_CONSOLE	NULL
> =C2=A0#endif

--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy


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From: "Helge Deller" <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.mips.general,gmane.linux.kernel
Subject: Aw: Re: [RFC PATCH urcu on mips, parisc] Fix: compat_futex should
 work-around futex signal-restart kernel bug
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Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	"Jon Bernard" <jbernard@debian.org>,
	"Michael Jeanson" <mjeanson@efficios.com>,
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To: "Mathieu Desnoyers" <mathieu.desnoyers@efficios.com>
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Hello Mathieu,

> > When testing liburcu on a 3.18 Linux kernel, 2-core MIPS (cpu model :
> > Ingenic JZRISC V4.15  FPU V0.0), we notice that a blocked sys_futex
> > FUTEX_WAIT returns -1, errno=ENOSYS when interrupted by a SA_RESTART
> > signal handler. This spurious ENOSYS behavior causes hangs in liburcu
> > 0.9.x. Running a MIPS 3.18 kernel under a QEMU emulator exhibits the
> > same behavior. This might affect earlier kernels.
> > 
> > This issue appears to be fixed in 3.18.y stable kernels and 3.19, but
> > nevertheless, we should try to handle this kernel bug more gracefully
> > than a user-space hang due to unexpected spurious ENOSYS return value.
> 
> It's actually fixed in 3.19, but not in 3.18.y stable kernels. The
> Linux kernel upstream fix commit is:
> e967ef02 "MIPS: Fix restart of indirect syscalls"

But that patch fixes mips only.
 
> I've created a small test program that could also be used on parisc
> to check if it suffers from the same issue (see attached).
> 
> On bogus mips kernels, we see the following output:
> [OK] Test program with pid: 5748 SIGUSR1 handler
> [FAIL] futex returns -1, Function not implemented

I tested it on a recent 4.2 kernel on parisc.
It fails as you describe:

Testing futex sigrestart. Stop with CTRL-c.
[OK] Test program with pid: 1361 SIGUSR1 handler
[OK] Test program with pid: 1361 SIGUSR1 handler
[FAIL] futex returns -1, Function not implemented
[OK] Test program with pid: 1361 SIGUSR1 handler
[FAIL] futex returns -1, Function not implemented

strace gives:
[pid  1329] futex(0x1210c, FUTEX_WAIT, -1, NULL <unfinished ...>
[pid  1328] nanosleep({1, 0},  <unfinished ...>
[pid  1329] <... futex resumed> )       = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
[pid  1329] write(2, "[FAIL] futex returns -1, Functio"..., 50[FAIL] futex returns -1, Function not implemented)


> > Therefore, fallback on the "async-safe" version of compat_futex in those
> > situations where FUTEX_WAIT returns ENOSYS. This async-safe fallback has
> > the nice property of being OK to use concurrently with other FUTEX_WAKE
> > and FUTEX_WAIT futex() calls, because it's simply a busy-wait scheme.
> > 
> > We suspect that parisc might be affected by a similar issue (Debian
> > build bots reported a similar hang on both mips and parisc), but we do
> > not have access to the hardware required to test this hypothesis.

If you want access to a machine, let me know.
I'll try the patch below as well..

> > Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> > CC: Michael Jeanson <mjeanson@efficios.com>
> > CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> > CC: Ralf Baechle <ralf@linux-mips.org>
> > CC: linux-mips@linux-mips.org
> > CC: linux-kernel@vger.kernel.org
> > CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
> > CC: Helge Deller <deller@gmx.de>
> > CC: linux-parisc@vger.kernel.org
> > ---
> > compat_futex.c |  2 ++
> > urcu/futex.h   | 12 +++++++++++-
> > 2 files changed, 13 insertions(+), 1 deletion(-)
> > 
> > diff --git a/compat_futex.c b/compat_futex.c
> > index b7f78f0..9e918fe 100644
> > --- a/compat_futex.c
> > +++ b/compat_futex.c
> > @@ -111,6 +111,8 @@ end:
> >  * _ASYNC SIGNAL-SAFE_.
> >  * For now, timeout, uaddr2 and val3 are unused.
> >  * Waiter will busy-loop trying to read the condition.
> > + * It is OK to use compat_futex_async() on a futex address on which
> > + * futex() WAKE operations are also performed.
> >  */
> > 
> > int compat_futex_async(int32_t *uaddr, int op, int32_t val,
> > diff --git a/urcu/futex.h b/urcu/futex.h
> > index 4d16cfa..a17eda8 100644
> > --- a/urcu/futex.h
> > +++ b/urcu/futex.h
> > @@ -73,7 +73,17 @@ static inline int futex_noasync(int32_t *uaddr, int op,
> > int32_t val,
> > 
> > 	ret = futex(uaddr, op, val, timeout, uaddr2, val3);
> > 	if (caa_unlikely(ret < 0 && errno == ENOSYS)) {
> > -		return compat_futex_noasync(uaddr, op, val, timeout,
> > +		/*
> > +		 * The fallback on ENOSYS is the async-safe version of
> > +		 * the compat futex implementation, because the
> > +		 * async-safe compat implementation allows being used
> > +		 * concurrently with calls to futex(). Indeed, sys_futex
> > +		 * FUTEX_WAIT, on some architectures (e.g. mips), within
> > +		 * a given process, spuriously return ENOSYS due to
> > +		 * signal restart bugs on some kernel versions (e.g.
> > +		 * Linux kernel 3.18 and possibly earlier).
> > +		 */
> > +		return compat_futex_async(uaddr, op, val, timeout,
> > 				uaddr2, val3);
> > 	}
> > 	return ret;
--
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From - Thu Nov 08 21:38:08 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: [PATCH v2 00/11] tty: serial: 8250: Fix checkpatch warnings
Date: Fri, 18 Dec 2015 12:21:52 +0100
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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Hello Peter,

thanks for your feedback. We updated the patches according to your remarks.

Regards,
Phillip Raffeck
Anton Wuerfel

This patch set fixes several checkpatch warnings in tty/serial/8250.

Patch 1/11:  Adds missing spaces (mainly to function/macro headers)
Patch 2/11:  Replace spaces with tabs wherever possible
Patch 3/11:  Slight patch which moves an opening curly brace
Patch 4/11:  Fixes multiline comment style
Patch 5/11:  Removes else blocks after return statements
Patch 6/11:  Slight patch which moves EXPORT_SYMBOL macro to correct position
Patch 7/11:  Slight patch which removes an unneccessary line continuation
Patch 8/11:  Slight patch which adds parentheses to a macro definition
Patch 9/11:  Merges user-visible multiline strings to a single line
Patch 10/11: Replaces printk by corresponding variant of pr_*
Patch 11/11: Fixes code indentation

Remaining checkpatch warnings after applying this patch series:

-line over 80 characters
	This error mostly occurs in serial_cs.c, which contains long-lined
	macro calls. However, splitting these calls into multiple lines would
	not increase readability.

-externs should be avoided in .c files
	This occurs in 8250_hp300.c. There is no corresponding header file
	the extern statement could be moved to. It could be moved to 8250.h
	but this would affect other .c files.

-Use #include <linux/*.h> instead of <asm/*.h>
	This warning has been left open for more experienced kernel hackers.
	This patch series is about style issues. We do not intend to alter
	the code behavior.

-struct uart_ops should normally be const
	This warning only occurs in 8250_core.c. The corresponding struct
	cannot be declared as const because it is altered in
	serial8250_isa_init_ports(). Maybe a checkpatch exception should
	be added for this particular warning.

-quoted string split across lines
	These strings were ignored because they otherwise would exceed
	80 characters in a single line. These particular strings use
	format specifiers, which break the ability to grep for them anyway.

Anton Wuerfel (11):
Phillip Raffeck (11):
  tty: serial: 8250: Fix whitespace errors
  tty: serial: 8250: Replace spaces with tabs
  tty: serial: 8250: Fix braces after struct
  tty: serial: 8250: Fix multiline comment style
  tty: serial: 8250: Remove else after return
  tty: serial: 8250: Move EXPORT_SYMBOL to function
  tty: serial: 8250: Fix line continuation warning
  tty: serial: 8250: Add parentheses to macro
  tty: serial: 8250: Fix multi-line strings
  tty: serial: 8250: Replace printk by pr_*
  tty: serial: 8250: Fix indentation warnings

 drivers/tty/serial/8250/8250_accent.c        |  2 +-
 drivers/tty/serial/8250/8250_acorn.c         |  2 +-
 drivers/tty/serial/8250/8250_boca.c          |  2 +-
 drivers/tty/serial/8250/8250_core.c          | 15 ++---
 drivers/tty/serial/8250/8250_exar_st16c554.c |  2 +-
 drivers/tty/serial/8250/8250_fourport.c      |  2 +-
 drivers/tty/serial/8250/8250_gsc.c           |  6 +-
 drivers/tty/serial/8250/8250_hp300.c         | 25 ++++----
 drivers/tty/serial/8250/8250_hub6.c          |  2 +-
 drivers/tty/serial/8250/8250_ingenic.c       | 12 ++--
 drivers/tty/serial/8250/8250_pci.c           | 49 +++++++--------
 drivers/tty/serial/8250/8250_pnp.c           | 16 ++---
 drivers/tty/serial/8250/8250_port.c          | 50 ++++++++--------
 drivers/tty/serial/8250/serial_cs.c          | 89 +++++++++++++++-------------
 14 files changed, 142 insertions(+), 132 deletions(-)

-- 
1.9.1

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From - Thu Nov 08 21:38:08 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v2 10/11] tty: serial: 8250: Replace printk by pr_*
Date: Fri, 18 Dec 2015 12:22:02 +0100
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel:2111557 gmane.linux.serial:21149 gmane.linux.ports.parisc:26212
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This patch replaces printk by the corresponding variant of pr_* in orde=
r to
fix checkpatch warnings. This comes with a slight change in behaviour a=
s
pr_debug is configurable via CONFIG_DYNAMIC_DEBUG, whereas
printk(KERN_DEBUG ...) is not.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c  |  5 ++---
 drivers/tty/serial/8250/8250_gsc.c   |  6 ++----
 drivers/tty/serial/8250/8250_hp300.c | 18 +++++++++---------
 drivers/tty/serial/8250/8250_pnp.c   |  6 +++---
 drivers/tty/serial/8250/8250_port.c  |  3 +--
 5 files changed, 17 insertions(+), 21 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index b60b58b..d6b4906 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1094,9 +1094,8 @@ static int __init serial8250_init(void)
=20
 	serial8250_isa_init_ports();
=20
-	printk(KERN_INFO "Serial: 8250/16550 driver, "
-		"%d ports, IRQ sharing %sabled\n", nr_uarts,
-		share_irqs ? "en" : "dis");
+	pr_info("Serial: 8250/16550 driver, %d ports, IRQ sharing %sabled\n",
+		nr_uarts, share_irqs ? "en" : "dis");
=20
 #ifdef CONFIG_SPARC
 	ret =3D sunserial_register_minors(&serial8250_reg, UART_NR);
diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/82=
50/8250_gsc.c
index 2e3ea1a..a9b63d0 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -42,8 +42,7 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
 		 * the user what they're missing.
 		 */
 		if (parisc_parent(dev)->id.hw_type !=3D HPHW_IOA)
-			printk(KERN_INFO
-				"Serial: device 0x%llx not configured.\n"
+			pr_info("Serial: device 0x%llx not configured.\n"
 				"Enable support for Wax, Lasi, Asp or Dino.\n",
 				(unsigned long long)dev->hpa.start);
 		return -ENODEV;
@@ -66,8 +65,7 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
=20
 	err =3D serial8250_register_8250_port(&uart);
 	if (err < 0) {
-		printk(KERN_WARNING
-			"serial8250_register_8250_port returned error %d\n", err);
+		pr_warn("serial8250_register_8250_port returned error %d\n", err);
 		iounmap(uart.port.membase);
 		return err;
 	}
diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index cf566bb..9123e31 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -110,7 +110,7 @@ int __init hp300_setup_serial_console(void)
 	/* Check for APCI console */
 	if (scode =3D=3D 256) {
 #ifdef CONFIG_HPAPCI
-		printk(KERN_INFO "Serial console is HP APCI 1\n");
+		pr_info("Serial console is HP APCI 1\n");
=20
 		port.uartclk =3D HPAPCI_BAUD_BASE * 16;
 		port.mapbase =3D (FRODO_BASE + FRODO_APCI_OFFSET(1));
@@ -118,7 +118,7 @@ int __init hp300_setup_serial_console(void)
 		port.regshift =3D 2;
 		add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is APCI but support is disabled =
(CONFIG_HPAPCI)!\n");
+		pr_warn("Serial console is APCI but support is disabled (CONFIG_HPAP=
CI)!\n");
 		return 0;
 #endif
 	} else {
@@ -127,7 +127,7 @@ int __init hp300_setup_serial_console(void)
 		if (!pa)
 			return 0;
=20
-		printk(KERN_INFO "Serial console is HP DCA at select code %d\n", sco=
de);
+		pr_info("Serial console is HP DCA at select code %d\n", scode);
=20
 		port.uartclk =3D HPDCA_BAUD_BASE * 16;
 		port.mapbase =3D (pa + UART_OFFSET);
@@ -141,13 +141,13 @@ int __init hp300_setup_serial_console(void)
 		if (DIO_ID(pa + DIO_VIRADDRBASE) & 0x80)
 			add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is DCA but support is disabled (=
CONFIG_HPDCA)!\n");
+		pr_warn("Serial console is DCA but support is disabled (CONFIG_HPDCA=
)!\n");
 		return 0;
 #endif
 	}
=20
 	if (early_serial_setup(&port) < 0)
-		printk(KERN_WARNING "hp300_setup_serial_console(): early_serial_setu=
p() failed.\n");
+		pr_warn("hp300_setup_serial_console(): early_serial_setup() failed.\=
n");
 	return 0;
 }
 #endif /* CONFIG_SERIAL_8250_CONSOLE */
@@ -179,8 +179,8 @@ static int hpdca_init_one(struct dio_dev *d,
 	line =3D serial8250_register_8250_port(&uart);
=20
 	if (line < 0) {
-		printk(KERN_NOTICE "8250_hp300: register_serial() DCA scode %d"
-		       " irq %d failed\n", d->scode, uart.port.irq);
+		pr_notice("8250_hp300: register_serial() DCA scode %d irq %d failed\=
n",
+			  d->scode, uart.port.irq);
 		return -ENOMEM;
 	}
=20
@@ -260,8 +260,8 @@ static int __init hp300_8250_init(void)
 		line =3D serial8250_register_8250_port(&uart);
=20
 		if (line < 0) {
-			printk(KERN_NOTICE "8250_hp300: register_serial() APCI"
-			       " %d irq %d failed\n", i, uart.port.irq);
+			pr_notice("8250_hp300: register_serial() APCI %d irq %d failed\n",
+				  i, uart.port.irq);
 			kfree(port);
 			continue;
 		}
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index ffa7354..1ed67e0 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -465,9 +465,9 @@ serial_pnp_probe(struct pnp_dev *dev, const struct =
pnp_device_id *dev_id)
 		return -ENODEV;
=20
 #ifdef SERIAL_DEBUG_PNP
-	printk(KERN_DEBUG
-		"Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
-		       uart.port.iobase, uart.port.mapbase, uart.port.irq, uart.port=
=2Eiotype);
+	pr_debug("Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
+		 uart.port.iobase, uart.port.mapbase,
+		 uart.port.irq, uart.port.iotype);
 #endif
 	if (flags & CIR_PORT) {
 		uart.port.flags |=3D UPF_FIXED_PORT | UPF_FIXED_TYPE;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 99f709c..343d050 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1222,8 +1222,7 @@ static void autoconfig(struct uart_8250_port *up)
 out_lock:
 	spin_unlock_irqrestore(&port->lock, flags);
 	if (up->capabilities !=3D old_capabilities) {
-		printk(KERN_WARNING
-		       "ttyS%d: detected caps %08x should be %08x\n",
+		pr_warn("ttyS%d: detected caps %08x should be %08x\n",
 		       serial_index(port), old_capabilities,
 		       up->capabilities);
 	}
--=20
1.9.1


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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v2 06/11] tty: serial: 8250: Move EXPORT_SYMBOL to function
Date: Fri, 18 Dec 2015 12:21:58 +0100
Lines: 45
Approved: news@gmane.org
Message-ID: <1450437723-2978-7-git-send-email-anton.wuerfel@fau.de>
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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This patch moves EXPORT_SYMBOL macros directly after the definition of
the corresponding symbol to remove checkpatch warnings.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 3912646..15082ae 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -763,6 +763,7 @@ void serial8250_suspend_port(int line)
=20
 	uart_suspend_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_suspend_port);
=20
 /**
  *	serial8250_resume_port - resume one serial port
@@ -788,6 +789,7 @@ void serial8250_resume_port(int line)
 	}
 	uart_resume_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_resume_port);
=20
 /*
  * Register a set of serial devices attached to a platform device.  Th=
e
@@ -1167,9 +1169,6 @@ static void __exit serial8250_exit(void)
 module_init(serial8250_init);
 module_exit(serial8250_exit);
=20
-EXPORT_SYMBOL(serial8250_suspend_port);
-EXPORT_SYMBOL(serial8250_resume_port);
-
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
--=20
1.9.1


From - Thu Nov 08 21:38:08 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: [PATCH v2 11/11] tty: serial: 8250: Fix indentation warnings
Date: Fri, 18 Dec 2015 12:22:03 +0100
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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Checkpatch complains about incorrect indentation of switch/case stateme=
nts.
This patch fixes the corresponding warnings. Additionally some indentat=
ion
is changed to match the correct format specified in the Linux Kernel
Coding Style.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de

---
v2: Split patch
---
 drivers/tty/serial/8250/8250_pci.c  | 12 ++++++------
 drivers/tty/serial/8250/8250_pnp.c  |  4 ++--
 drivers/tty/serial/8250/8250_port.c | 12 ++++++------
 3 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 09157fa..b0b47f9 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -841,12 +841,12 @@ static int pci_netmos_init(struct pci_dev *dev)
 		return 0;
=20
 	switch (dev->device) { /* FALLTHROUGH on all */
-		case PCI_DEVICE_ID_NETMOS_9904:
-		case PCI_DEVICE_ID_NETMOS_9912:
-		case PCI_DEVICE_ID_NETMOS_9922:
-		case PCI_DEVICE_ID_NETMOS_9900:
-			num_serial =3D pci_netmos_9900_numports(dev);
-			break;
+	case PCI_DEVICE_ID_NETMOS_9904:
+	case PCI_DEVICE_ID_NETMOS_9912:
+	case PCI_DEVICE_ID_NETMOS_9922:
+	case PCI_DEVICE_ID_NETMOS_9900:
+		num_serial =3D pci_netmos_9900_numports(dev);
+		break;
=20
 		default:
 			if (num_serial =3D=3D 0) {
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 1ed67e0..3811c67 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -427,8 +427,8 @@ static int check_resources(struct pnp_dev *dev)
 static int serial_pnp_guess_board(struct pnp_dev *dev)
 {
 	if (!(check_name(pnp_dev_name(dev)) ||
-		(dev->card && check_name(dev->card->name))))
-			return -ENODEV;
+	    (dev->card && check_name(dev->card->name))))
+		return -ENODEV;
=20
 	if (check_resources(dev))
 		return 0;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 343d050..5566c8e 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2235,9 +2235,9 @@ static void serial8250_set_divisor(struct uart_po=
rt *port, unsigned int baud,
 		serial_port_out(port, 0x2, quot_frac);
 }
=20
-static unsigned int
-serial8250_get_baud_rate(struct uart_port *port, struct ktermios *term=
ios,
-			 struct ktermios *old)
+static unsigned int serial8250_get_baud_rate(struct uart_port *port,
+					     struct ktermios *termios,
+					     struct ktermios *old)
 {
 	unsigned int tolerance =3D port->uartclk / 100;
=20
@@ -2252,9 +2252,9 @@ serial8250_get_baud_rate(struct uart_port *port, =
struct ktermios *termios,
 				  (port->uartclk + tolerance) / 16);
 }
=20
-void
-serial8250_do_set_termios(struct uart_port *port, struct ktermios *ter=
mios,
-			  struct ktermios *old)
+void serial8250_do_set_termios(struct uart_port *port,
+			       struct ktermios *termios,
+			       struct ktermios *old)
 {
 	struct uart_8250_port *up =3D up_to_u8250p(port);
 	unsigned char cval;
--=20
1.9.1

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From - Thu Nov 08 21:38:08 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v2 09/11] tty: serial: 8250: Fix multi-line strings
Date: Fri, 18 Dec 2015 12:22:01 +0100
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Approved: news@gmane.org
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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Merged user-visible multi-line strings into a single line according to =
the
Linux Kernel Coding Style, which allows user-visible strings to exceed =
the
maximum line length of 80 characters. The main reason for this is to
facilitate grepping for these strings.
However, some strings were ignored in this patch, because the use of
format specifiers breaks the ability to grep anyway.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 3 +--
 drivers/tty/serial/8250/serial_cs.c | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index d042ad5..b60b58b 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1173,8 +1173,7 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
 module_param(share_irqs, uint, 0644);
-MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices"
-	" (unsafe)");
+MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices (unsafe)");
=20
 module_param(nr_uarts, uint, 0644);
 MODULE_PARM_DESC(nr_uarts, "Maximum number of UARTs supported. (1-" __=
MODULE_STRING(CONFIG_SERIAL_8250_NR_UARTS) ")");
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 1f34867..1ab6bfc 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -533,8 +533,7 @@ static int multi_config(struct pcmcia_device *link)
 		info->multi =3D 2;
 		if (pcmcia_loop_config(link, multi_config_check_notpicky,
 				       &base2)) {
-			dev_warn(&link->dev, "no usable port range "
-			       "found, giving up\n");
+			dev_warn(&link->dev, "no usable port range found, giving up\n");
 			return -ENODEV;
 		}
 	}
--=20
1.9.1


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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v2 08/11] tty: serial: 8250: Add parentheses to macro
Date: Fri, 18 Dec 2015 12:22:00 +0100
Lines: 27
Approved: news@gmane.org
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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This patch fixes a checkpatch warning caused by missing parentheses
in the definition of a macro.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 15082ae..d042ad5 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -686,7 +686,7 @@ static int __init univ8250_console_init(void)
 }
 console_initcall(univ8250_console_init);
=20
-#define SERIAL8250_CONSOLE	&univ8250_console
+#define SERIAL8250_CONSOLE	(&univ8250_console)
 #else
 #define SERIAL8250_CONSOLE	NULL
 #endif
--=20
1.9.1


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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v2 04/11] tty: serial: 8250: Fix multiline comment style
Date: Fri, 18 Dec 2015 12:21:56 +0100
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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Checkpatch outputs some warnings about incorrect comment style,
which is fixed by this patch.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
v2: Changed to consistent comment style
---
 drivers/tty/serial/8250/8250_ingenic.c | 12 ++++++++----
 drivers/tty/serial/8250/8250_pnp.c     |  6 ++++--
 drivers/tty/serial/8250/8250_port.c    | 31 ++++++++++++++++----------=
-----
 drivers/tty/serial/8250/serial_cs.c    | 26 +++++++++++++++++---------
 4 files changed, 45 insertions(+), 30 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_ingenic.c b/drivers/tty/seria=
l/8250/8250_ingenic.c
index 49394b4..086bd00 100644
--- a/drivers/tty/serial/8250/8250_ingenic.c
+++ b/drivers/tty/serial/8250/8250_ingenic.c
@@ -152,14 +152,18 @@ static void ingenic_uart_serial_out(struct uart_p=
ort *p, int offset, int value)
 		break;
=20
 	case UART_IER:
-		/* Enable receive timeout interrupt with the
-		 * receive line status interrupt */
+		/*
+		 * Enable receive timeout interrupt with the
+		 * receive line status interrupt
+		 */
 		value |=3D (value & 0x4) << 2;
 		break;
=20
 	case UART_MCR:
-		/* If we have enabled modem status IRQs we should enable modem
-		 * mode. */
+		/*
+		 * If we have enabled modem status IRQs we should enable modem
+		 * mode.
+		 */
 		ier =3D p->serial_in(p, UART_IER);
=20
 		if (ier & UART_IER_MSI)
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 658b392..ffa7354 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -367,8 +367,10 @@ static const struct pnp_device_id pnp_dev_table[] =
=3D {
 	{	"PNPCXXX",		UNKNOWN_DEV	},
 	/* More unknown PnP modems */
 	{	"PNPDXXX",		UNKNOWN_DEV	},
-	/* Winbond CIR port, should not be probed. We should keep track
-	   of it to prevent the legacy serial driver from probing it */
+	/*
+	 * Winbond CIR port, should not be probed. We should keep track
+	 * of it to prevent the legacy serial driver from probing it
+	 */
 	{	"WEC1022",		CIR_PORT	},
 	/*
 	 * SMSC IrCC SIR/FIR port, should not be probed by serial driver
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index f2e588e..99f709c 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -250,9 +250,11 @@ static const struct serial8250_config uart_config[=
] =3D {
 		.fcr		=3D UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
 		.flags		=3D UART_CAP_FIFO | UART_CAP_AFE,
 	},
-/* tx_loadsz is set to 63-bytes instead of 64-bytes to implement
-workaround of errata A-008006 which states that tx_loadsz should  be
-configured less than Maximum supported fifo bytes */
+	/*
+	 * tx_loadsz is set to 63-bytes instead of 64-bytes to implement
+	 * workaround of errata A-008006 which states that tx_loadsz should b=
e
+	 * configured less than Maximum supported fifo bytes
+	 */
 	[PORT_16550A_FSL64] =3D {
 		.name		=3D "16550A_FSL64",
 		.fifo_size	=3D 64,
@@ -1969,23 +1971,22 @@ int serial8250_do_startup(struct uart_port *por=
t)
=20
 	serial8250_set_mctrl(port, port->mctrl);
=20
-	/* Serial over Lan (SoL) hack:
-	   Intel 8257x Gigabit ethernet chips have a
-	   16550 emulation, to be used for Serial Over Lan.
-	   Those chips take a longer time than a normal
-	   serial device to signalize that a transmission
-	   data was queued. Due to that, the above test generally
-	   fails. One solution would be to delay the reading of
-	   iir. However, this is not reliable, since the timeout
-	   is variable. So, let's just don't test if we receive
-	   TX irq. This way, we'll never enable UART_BUG_TXEN.
+	/*
+	 * Serial over Lan (SoL) hack:
+	 * Intel 8257x Gigabit ethernet chips have a 16550 emulation, to be u=
sed
+	 * for Serial Over Lan.  Those chips take a longer time than a normal
+	 * serial device to signalize that a transmission data was queued. Du=
e
+	 * to that, the above test generally fails. One solution would be to
+	 * delay the reading of iir. However, this is not reliable, since the
+	 * timeout is variable. So, let's just don't test if we receive TX ir=
q.
+	 * This way, we'll never enable UART_BUG_TXEN.
 	 */
 	if (up->port.flags & UPF_NO_TXEN_TEST)
 		goto dont_test_tx_en;
=20
 	/*
-	 * Do a quick test to see if we receive an
-	 * interrupt when we enable the TX irq.
+	 * Do a quick test to see if we receive an interrupt when we enable t=
he
+	 * TX irq.
 	 */
 	serial_port_out(port, UART_IER, UART_IER_THRI);
 	lsr =3D serial_port_in(port, UART_LSR);
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 6d7a801..1f34867 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -441,16 +441,20 @@ static int simple_config(struct pcmcia_device *li=
nk)
 	struct serial_info *info =3D link->priv;
 	int i =3D -ENODEV, try;
=20
-	/* First pass: look for a config entry that looks normal.
-	 * Two tries: without IO aliases, then with aliases */
+	/*
+	 * First pass: look for a config entry that looks normal.
+	 * Two tries: without IO aliases, then with aliases
+	 */
 	link->config_flags |=3D CONF_AUTO_SET_VPP;
 	for (try =3D 0; try < 4; try++)
 		if (!pcmcia_loop_config(link, simple_config_check, &try))
 			goto found_port;
=20
-	/* Second pass: try to find an entry that isn't picky about
-	   its base address, then try to grab any standard serial port
-	   address, and finally try to get any free port. */
+	/*
+	 * Second pass: try to find an entry that isn't picky about
+	 * its base address, then try to grab any standard serial port
+	 * address, and finally try to get any free port.
+	 */
 	if (!pcmcia_loop_config(link, simple_config_check_notpicky, NULL))
 		goto found_port;
=20
@@ -480,8 +484,10 @@ static int multi_config_check(struct pcmcia_device=
 *p_dev, void *priv_data)
 	if (p_dev->resource[1]->end)
 		return -EINVAL;
=20
-	/* The quad port cards have bad CIS's, so just look for a
-	   window larger than 8 ports and assume it will be right */
+	/*
+	 * The quad port cards have bad CIS's, so just look for a
+	 * window larger than 8 ports and assume it will be right
+	 */
 	if (p_dev->resource[0]->end <=3D 8)
 		return -EINVAL;
=20
@@ -623,8 +629,10 @@ static int serial_config(struct pcmcia_device *lin=
k)
 			break;
 		}
=20
-	/* Another check for dual-serial cards: look for either serial or
-	   multifunction cards that ask for appropriate IO port ranges */
+	/*
+	 * Another check for dual-serial cards: look for either serial or
+	 * multifunction cards that ask for appropriate IO port ranges
+	 */
 	if ((info->multi =3D=3D 0) &&
 	    (link->has_func_id) &&
 	    (link->socket->pcmcia_pfc =3D=3D 0) &&
--=20
1.9.1


From - Thu Nov 08 21:38:08 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v2 07/11] tty: serial: 8250: Fix line continuation warning
Date: Fri, 18 Dec 2015 12:21:59 +0100
Lines: 29
Approved: news@gmane.org
Message-ID: <1450437723-2978-8-git-send-email-anton.wuerfel@fau.de>
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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=46ixed checkpatch warning about an unnecessary line continuation in a
multi-line variable assignment.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 5e1b464..cf566bb 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -248,8 +248,8 @@ static int __init hp300_8250_init(void)
=20
 		/* Memory mapped I/O */
 		uart.port.iotype =3D UPIO_MEM;
-		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ \
-			      | UPF_BOOT_AUTOCONF;
+		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ
+				| UPF_BOOT_AUTOCONF;
 		/* XXX - no interrupt support yet */
 		uart.port.irq =3D 0;
 		uart.port.uartclk =3D HPAPCI_BAUD_BASE * 16;
--=20
1.9.1


From - Thu Nov 08 21:38:08 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: [PATCH v2 03/11] tty: serial: 8250: Fix braces after struct
Date: Fri, 18 Dec 2015 12:21:55 +0100
Lines: 34
Approved: news@gmane.org
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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This patch fixes a checkpatch warning by moving an opening curly brace
to its correct position.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 2891958..5e1b464 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -24,8 +24,7 @@
 #endif
=20
 #ifdef CONFIG_HPAPCI
-struct hp300_port
-{
+struct hp300_port {
 	struct hp300_port *next;	/* next port */
 	int line;			/* line (tty) number */
 };
--=20
1.9.1

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From - Thu Nov 08 21:38:08 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v2 05/11] tty: serial: 8250: Remove else after return
Date: Fri, 18 Dec 2015 12:21:57 +0100
Lines: 55
Approved: news@gmane.org
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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This patch fixes checkpatch warnings about unnecessary else blocks afte=
r
return statements.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 7f9f245..09157fa 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -805,10 +805,10 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
=20
 	pi =3D (c & 0xff);
=20
-	if (pi =3D=3D 2) {
+	if (pi =3D=3D 2)
 		return 1;
-	} else if ((pi =3D=3D 0) &&
-			   (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) {
+
+	if ((pi =3D=3D 0) && (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) =
{
 		/* two possibilities: 0x30ps encodes number of parallel and
 		 * serial ports, or 0x1000 indicates *something*. This is not
 		 * immediately obvious, since the 2s1p+4s configuration seems
@@ -816,12 +816,11 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
 		 * advertising the same function 3 as the 4s+2s1p config.
 		 */
 		sub_serports =3D dev->subsystem_device & 0xf;
-		if (sub_serports > 0) {
+		if (sub_serports > 0)
 			return sub_serports;
-		} else {
-			dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on a=
mbiguous config.\n");
-			return 0;
-		}
+
+		dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on am=
biguous config.\n");
+		return 0;
 	}
=20
 	moan_device("unknown NetMos/Mostech program interface", dev);
--=20
1.9.1


From - Thu Nov 08 21:38:08 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: [PATCH v2 02/11] tty: serial: 8250: Replace spaces with tabs
Date: Fri, 18 Dec 2015 12:21:54 +0100
Lines: 95
Approved: news@gmane.org
Message-ID: <1450437723-2978-3-git-send-email-anton.wuerfel@fau.de>
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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Indentation is changed to match the correct format of using tabs instea=
d
of spaces wherever possible.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
v2: Split patch
---
 drivers/tty/serial/8250/8250_pci.c  | 12 ++++++------
 drivers/tty/serial/8250/8250_port.c |  4 ++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index ccf43cb..7f9f245 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -721,7 +721,7 @@ static int pci_ni8430_init(struct pci_dev *dev)
 	 */
 	pcibios_resource_to_bus(dev->bus, &region, &dev->resource[bar]);
 	device_window =3D ((region.start + MITE_IOWBSR1_WIN_OFFSET) & 0xfffff=
f00)
-	                | MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
+			| MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
 	writel(device_window, p + MITE_IOWBSR1);
=20
 	/* Set window access to go to RAMSEL IO address space */
@@ -1763,7 +1763,7 @@ xr17v35x_has_slave(struct serial_private *priv)
 	const int dev_id =3D priv->dev->device;
=20
 	return ((dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V4358) ||
-	        (dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
+		(dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
 }
=20
 static int
@@ -1863,8 +1863,8 @@ pci_fastcom335_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch353_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16550A;
@@ -1873,8 +1873,8 @@ pci_wch_ch353_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch38x_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16850;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 7f3bd7b..f2e588e 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -52,7 +52,7 @@
 #define DEBUG_AUTOCONF(fmt...)	do { } while (0)
 #endif
=20
-#define BOTH_EMPTY 	(UART_LSR_TEMT | UART_LSR_THRE)
+#define BOTH_EMPTY	(UART_LSR_TEMT | UART_LSR_THRE)
=20
 /*
  * Here we define the default xmit fifo size used for each type of UAR=
T.
@@ -2254,7 +2254,7 @@ serial8250_get_baud_rate(struct uart_port *port, =
struct ktermios *termios,
=20
 void
 serial8250_do_set_termios(struct uart_port *port, struct ktermios *ter=
mios,
-		          struct ktermios *old)
+			  struct ktermios *old)
 {
 	struct uart_8250_port *up =3D up_to_u8250p(port);
 	unsigned char cval;
--=20
1.9.1

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Path: news.gmane.org!not-for-mail
From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v2 01/11] tty: serial: 8250: Fix whitespace errors
Date: Fri, 18 Dec 2015 12:21:53 +0100
Lines: 360
Approved: news@gmane.org
Message-ID: <1450437723-2978-2-git-send-email-anton.wuerfel@fau.de>
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anto
To: linux-serial@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel:2111571 gmane.linux.serial:21159 gmane.linux.ports.parisc:26222
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2111571>

This patch fixes whitespace errors reported by checkpatch to increase
readability. Main focus is on missing spaces after commas in
function headers and macros (like foo,bar edited to foo, bar).

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
v2: No newline after non-trivial variable initializations
---
 drivers/tty/serial/8250/8250_accent.c        |  2 +-
 drivers/tty/serial/8250/8250_acorn.c         |  2 +-
 drivers/tty/serial/8250/8250_boca.c          |  2 +-
 drivers/tty/serial/8250/8250_exar_st16c554.c |  2 +-
 drivers/tty/serial/8250/8250_fourport.c      |  2 +-
 drivers/tty/serial/8250/8250_hub6.c          |  2 +-
 drivers/tty/serial/8250/8250_pci.c           | 10 +++--
 drivers/tty/serial/8250/8250_port.c          |  2 +
 drivers/tty/serial/8250/serial_cs.c          | 60 ++++++++++++++------=
--------
 9 files changed, 44 insertions(+), 40 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_accent.c b/drivers/tty/serial=
/8250/8250_accent.c
index 34b51c6..c480729 100644
--- a/drivers/tty/serial/8250/8250_accent.c
+++ b/drivers/tty/serial/8250/8250_accent.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
+#define PORT(_base, _irq)				\
 	{						\
 		.iobase		=3D _base,		\
 		.irq		=3D _irq,			\
diff --git a/drivers/tty/serial/8250/8250_acorn.c b/drivers/tty/serial/=
8250/8250_acorn.c
index 549aa07..402dfdd 100644
--- a/drivers/tty/serial/8250/8250_acorn.c
+++ b/drivers/tty/serial/8250/8250_acorn.c
@@ -70,7 +70,7 @@ serial_card_probe(struct expansion_card *ec, const st=
ruct ecard_id *id)
 	uart.port.regshift	=3D 2;
 	uart.port.dev	=3D &ec->dev;
=20
-	for (i =3D 0; i < info->num_ports; i ++) {
+	for (i =3D 0; i < info->num_ports; i++) {
 		uart.port.membase =3D info->vaddr + type->offset[i];
 		uart.port.mapbase =3D bus_addr + type->offset[i];
=20
diff --git a/drivers/tty/serial/8250/8250_boca.c b/drivers/tty/serial/8=
250/8250_boca.c
index d125dc1..e42a5b5 100644
--- a/drivers/tty/serial/8250/8250_boca.c
+++ b/drivers/tty/serial/8250/8250_boca.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
+#define PORT(_base, _irq)				\
 	{						\
 		.iobase		=3D _base,		\
 		.irq		=3D _irq,			\
diff --git a/drivers/tty/serial/8250/8250_exar_st16c554.c b/drivers/tty=
/serial/8250/8250_exar_st16c554.c
index bf53aab..999f2d3 100644
--- a/drivers/tty/serial/8250/8250_exar_st16c554.c
+++ b/drivers/tty/serial/8250/8250_exar_st16c554.c
@@ -13,7 +13,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
+#define PORT(_base, _irq)				\
 	{						\
 		.iobase		=3D _base,		\
 		.irq		=3D _irq,			\
diff --git a/drivers/tty/serial/8250/8250_fourport.c b/drivers/tty/seri=
al/8250/8250_fourport.c
index be15826..9a04a8a 100644
--- a/drivers/tty/serial/8250/8250_fourport.c
+++ b/drivers/tty/serial/8250/8250_fourport.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)						\
+#define PORT(_base, _irq)						\
 	{								\
 		.iobase		=3D _base,				\
 		.irq		=3D _irq,					\
diff --git a/drivers/tty/serial/8250/8250_hub6.c b/drivers/tty/serial/8=
250/8250_hub6.c
index a5c778e..27124e2 100644
--- a/drivers/tty/serial/8250/8250_hub6.c
+++ b/drivers/tty/serial/8250/8250_hub6.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define HUB6(card,port)							\
+#define HUB6(card, port)						\
 	{								\
 		.iobase		=3D 0x302,				\
 		.irq		=3D 3,					\
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 4097f3f..ccf43cb 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -850,7 +850,7 @@ static int pci_netmos_init(struct pci_dev *dev)
 			break;
=20
 		default:
-			if (num_serial =3D=3D 0 ) {
+			if (num_serial =3D=3D 0) {
 				moan_device("unknown NetMos/Mostech device", dev);
 			}
 	}
@@ -1198,8 +1198,9 @@ static int pci_quatech_has_qmcr(struct uart_8250_=
port *port)
=20
 static int pci_quatech_test(struct uart_8250_port *port)
 {
-	u8 reg;
-	u8 qopr =3D pci_quatech_rqopr(port);
+	u8 reg, qopr;
+
+	qopr =3D pci_quatech_rqopr(port);
 	pci_quatech_wqopr(port, qopr & QPCR_TEST_FOR1);
 	reg =3D pci_quatech_rqopr(port) & 0xC0;
 	if (reg !=3D QPCR_TEST_GET1)
@@ -1286,6 +1287,7 @@ static int pci_quatech_init(struct pci_dev *dev)
 		unsigned long base =3D pci_resource_start(dev, 0);
 		if (base) {
 			u32 tmp;
+
 			outl(inl(base + 0x38) | 0x00002000, base + 0x38);
 			tmp =3D inl(base + 0x3c);
 			outl(tmp | 0x01000000, base + 0x3c);
@@ -4502,7 +4504,7 @@ static struct pci_device_id serial_pci_tbl[] =3D =
{
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b0_bt_2_921600 },
 	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI958,
-		PCI_ANY_ID , PCI_ANY_ID, 0, 0,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b2_8_1152000 },
=20
 	/*
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 52d82d2..7f3bd7b 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1327,6 +1327,7 @@ static void serial8250_start_tx(struct uart_port =
*port)
=20
 		if (up->bugs & UART_BUG_TXEN) {
 			unsigned char lsr;
+
 			lsr =3D serial_in(up, UART_LSR);
 			up->lsr_saved_flags |=3D lsr & LSR_SAVE_FLAGS;
 			if (lsr & UART_LSR_THRE)
@@ -1734,6 +1735,7 @@ static void wait_for_xmitr(struct uart_8250_port =
*up, int bits)
 	/* Wait up to 1s for flow control if necessary */
 	if (up->port.flags & UPF_CONS_FLOW) {
 		unsigned int tmout;
+
 		for (tmout =3D 1000000; tmout; tmout--) {
 			unsigned int msr =3D serial_in(up, UART_MSR);
 			up->msr_saved_flags |=3D msr & MSR_SAVE_FLAGS;
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 4d180c9..6d7a801 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -28,7 +28,7 @@
     and other provisions required by the GPL.  If you do not delete
     the provisions above, a recipient may use your version of this
     file under either the MPL or the GPL.
-   =20
+
 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
=20
 #include <linux/module.h>
@@ -257,7 +257,7 @@ static const struct serial_quirk quirks[] =3D {
 };
=20
=20
-static int serial_config(struct pcmcia_device * link);
+static int serial_config(struct pcmcia_device *link);
=20
=20
 static void serial_remove(struct pcmcia_device *link)
@@ -309,7 +309,7 @@ static int serial_probe(struct pcmcia_device *link)
 	dev_dbg(&link->dev, "serial_attach()\n");
=20
 	/* Create new serial device */
-	info =3D kzalloc(sizeof (*info), GFP_KERNEL);
+	info =3D kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 	info->p_dev =3D link;
@@ -339,7 +339,7 @@ static void serial_detach(struct pcmcia_device *lin=
k)
=20
 /*=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
=20
-static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo * info,
+static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo *info,
 			unsigned int iobase, int irq)
 {
 	struct uart_8250_port uart;
@@ -600,7 +600,7 @@ static int serial_check_for_multi(struct pcmcia_dev=
ice *p_dev,  void *priv_data)
 }
=20
=20
-static int serial_config(struct pcmcia_device * link)
+static int serial_config(struct pcmcia_device *link)
 {
 	struct serial_info *info =3D link->priv;
 	int i;
@@ -701,7 +701,7 @@ static const struct pcmcia_device_id serial_ids[] =3D=
 {
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "LINKSYS", "PCMLM336", 0xf7cb0b07, 0x7=
a821b58),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf5=
10db04, 0x52d21e1e),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MICRO RESEARCH", "COMBO-L/M-336", 0xb=
2ced065, 0x3ced0555),
-	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001" ,0x18df0ba0 ,0x831=
b1064),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001", 0x18df0ba0, 0x831=
b1064),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Diamonds=
 Modem+Ethernet", 0xc2f80cd, 0x656947b9),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Hearts M=
odem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "PCMCIAs", "ComboCard", 0xdcfe12d3, 0x=
cd8906cc),
@@ -797,30 +797,30 @@ static const struct pcmcia_device_id serial_ids[]=
 =3D {
 	PCMCIA_DEVICE_CIS_PROD_ID123("ADVANTECH", "COMpad-32/85", "1.0", 0x96=
913a85, 0x8fbe92ae, 0x0877b627, "cis/COMpad2.cis"),
 	PCMCIA_DEVICE_CIS_PROD_ID2("RS-COM 2P", 0xad20b156, "cis/RS-COM-2P.ci=
s"),
 	PCMCIA_DEVICE_CIS_MANF_CARD(0x0013, 0x0000, "cis/GLOBETROTTER.cis"),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100  1.00.",0x19ca78af,0xf964f42b),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100",0x19ca78af,0x71d98e83),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232  1.00.",0x19ca78af,0x69fb7490),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232",0x19ca78af,0xb6bc0235),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232",0x63f2e0bd,0xb9e175d3),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232-5",0x63f2e0bd,0xfce33442),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232",0x3beb8cf2,0x171e=
7190),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232-5",0x3beb8cf2,0x20=
da4262),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF428",0x3beb8cf2,0xea5d=
d57d),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF500",0x3beb8cf2,0xd772=
55fa),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: IC232",0x3beb8cf2,0x6a70=
9903),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: SL232",0x3beb8cf2,0x1843=
0676),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: XL232",0x3beb8cf2,0x6f93=
3767),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial+Parallel Port: SP230",0x=
3beb8cf2,0xdb9e58bc),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(2,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(3,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100  1.00.", 0x19ca78af, 0xf964f42b),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100", 0x19ca78af, 0x71d98e83),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232  1.00.", 0x19ca78af, 0x69fb7490),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232", 0x19ca78af, 0xb6bc0235),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232", 0x63f2e0bd, 0xb9e175d3),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232-5", 0x63f2e0bd, 0xfce33442),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232", 0x3beb8cf2, 0x1=
71e7190),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232-5", 0x3beb8cf2, 0=
x20da4262),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF428", 0x3beb8cf2, 0xe=
a5dd57d),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF500", 0x3beb8cf2, 0xd=
77255fa),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: IC232", 0x3beb8cf2, 0x6=
a709903),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: SL232", 0x3beb8cf2, 0x1=
8430676),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: XL232", 0x3beb8cf2, 0x6=
f933767),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial+Parallel Port: SP230",=
 0x3beb8cf2, 0xdb9e58bc),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(2, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(3, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
 	PCMCIA_DEVICE_MANF_CARD(0x0279, 0x950b),
 	/* too generic */
 	/* PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0160, 0x0002), */
--=20
1.9.1


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Hello Andy,

> What about the rest of the drivers under drivers/tty/serial?
>
> What do you propose to do with, for example, the following
>
> drivers/tty/serial/cpm_uart/cpm_uart_core.c:1392:#define
> CPM_UART_CONSOLE=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0&cpm_scc_ua=
rt_console
> drivers/tty/serial/cpm_uart/cpm_uart_core.c:1394:#define
> CPM_UART_CONSOLE=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0NULL
>
>> =C2=A0#else
>> =C2=A0#define SERIAL8250_CONSOLE	NULL
>> =C2=A0#endif
>

thanks for your reply. Phillip and me are newcomers to kernel developme=
nt,
so we tried to touch as few files as possible and gain some experience =
in
creating patches and communication on LKML. We will consider sending
further patches in the future.

Regards,
Phillip Raffeck
Anton Wuerfel

> --
> Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Intel Finland Oy
>
>


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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: Re: [PATCH v2 10/11] tty: serial: 8250: Replace printk by pr_*
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	Jiri Slaby <jslaby@suse.com>,
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	Helge Deller <deller@gmx.de>,
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On Fri, 2015-12-18 at 12:22 +0100, Anton Wuerfel wrote:


>  This comes with a slight change in behaviour as
> pr_debug is configurable via CONFIG_DYNAMIC_DEBUG, whereas
> printk(KERN_DEBUG ...) is not.

--- a/drivers/tty/serial/8250/8250_pnp.c
> +++ b/drivers/tty/serial/8250/8250_pnp.c
> @@ -465,9 +465,9 @@ serial_pnp_probe(struct pnp_dev *dev, const
> struct pnp_device_id *dev_id)
> =C2=A0		return -ENODEV;
> =C2=A0
> =C2=A0#ifdef SERIAL_DEBUG_PNP
> -	printk(KERN_DEBUG

I think it's not okay.

The rationale to have printk(KERN_DEBUG =E2=80=A6) here is to allow a
compilation with support of those messages independently on
DYNAMIC_DEBUG.

If you want to switch to DYNAMIC_DEBUG you have to carefully check what
is done under=C2=A0SERIAL_DEBUG_PNP.

git grep on current linux-next shows that SERIAL_DEBUG_PNP is an
orphan.

So, I would suggest to remove #ifdef.

> -		"Setup PNP port: port %x, mem 0x%lx, irq %d, type
> %d\n",
> -		=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0uart.port.iobase, uart.p=
ort.mapbase,
> uart.port.irq, uart.port.iotype);
> +	pr_debug("Setup PNP port: port %x, mem 0x%lx, irq %d, type
> %d\n",
> +		=C2=A0uart.port.iobase, uart.port.mapbase,
> +		=C2=A0uart.port.irq, uart.port.iotype);
> =C2=A0#endif
>=20


--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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Subject: Re: [PATCH 08/11] tty: serial: 8250: Add parentheses to macro
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On Fri, 2015-12-18 at 12:36 +0100, anton.wuerfel@fau.de wrote:
> Hello Andy,
>=20
> > What about the rest of the drivers under drivers/tty/serial?
> >=20
> > What do you propose to do with, for example, the following
> >=20
> > drivers/tty/serial/cpm_uart/cpm_uart_core.c:1392:#define
> > CPM_UART_CONSOLE=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0&cpm_scc_=
uart_console
> > drivers/tty/serial/cpm_uart/cpm_uart_core.c:1394:#define
> > CPM_UART_CONSOLE=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0NULL
> >=20
> > > =C2=A0#else
> > > =C2=A0#define SERIAL8250_CONSOLE	NULL
> > > =C2=A0#endif
> >=20
>=20
> thanks for your reply. Phillip and me are newcomers to kernel
> development,

Welcome!

> so we tried to touch as few files as possible and gain some
> experience in
> creating patches and communication on LKML. We will consider sending
> further patches in the future.

I see.

I don't know which way is preferable for such patches, I think Greg
usually likes when one patch touches one driver. So, this one is okay,
and other drivers can be fixed later.



> Regards,
> Phillip Raffeck
> Anton Wuerfel
>=20
> > --
> > Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> > Intel Finland Oy
> >=20
> >=20
>=20
>=20

--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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From: "Shevchenko, Andriy" <andriy.shevchenko@intel.com>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: Re: [PATCH v2 10/11] tty: serial: 8250: Replace printk by pr_*
Date: Fri, 18 Dec 2015 12:42:08 +0000
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From: Peter Hurley <peter@hurleysoftware.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: Re: [PATCH v2 10/11] tty: serial: 8250: Replace printk by pr_*
Date: Fri, 18 Dec 2015 07:10:52 -0800
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References: <1450437723-2978-1-git-send-email-anton.wuerfel@fau.de>
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Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	linux-serial@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
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	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffe
To: Anton Wuerfel <anton.wuerfel@fau.de>
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Hi Anton,

On 12/18/2015 04:32 AM, Andy Shevchenko wrote:
> On Fri, 2015-12-18 at 12:22 +0100, Anton Wuerfel wrote:
>=20
>=20
>>  This comes with a slight change in behaviour as
>> pr_debug is configurable via CONFIG_DYNAMIC_DEBUG, whereas
>> printk(KERN_DEBUG ...) is not.

Please make this one change and the changes Andy is suggesting
it a separate patch.

That way the commit can describe how the get the equivalent
behavior (ie., with CONFIG_DYNAMIC_DEBUG) rather than with
-DSERIAL_DEBUG_PNP.

Regards,
Peter Hurley

> --- a/drivers/tty/serial/8250/8250_pnp.c
>> +++ b/drivers/tty/serial/8250/8250_pnp.c
>> @@ -465,9 +465,9 @@ serial_pnp_probe(struct pnp_dev *dev, const
>> struct pnp_device_id *dev_id)
>>  		return -ENODEV;
>> =20
>>  #ifdef SERIAL_DEBUG_PNP
>> -	printk(KERN_DEBUG
>=20
> I think it's not okay.
>=20
> The rationale to have printk(KERN_DEBUG =E2=80=A6) here is to allow a
> compilation with support of those messages independently on
> DYNAMIC_DEBUG.
>=20
> If you want to switch to DYNAMIC_DEBUG you have to carefully check wh=
at
> is done under SERIAL_DEBUG_PNP.
>=20
> git grep on current linux-next shows that SERIAL_DEBUG_PNP is an
> orphan.
>=20
> So, I would suggest to remove #ifdef.
>=20
>> -		"Setup PNP port: port %x, mem 0x%lx, irq %d, type
>> %d\n",
>> -		       uart.port.iobase, uart.port.mapbase,
>> uart.port.irq, uart.port.iotype);
>> +	pr_debug("Setup PNP port: port %x, mem 0x%lx, irq %d, type
>> %d\n",
>> +		 uart.port.iobase, uart.port.mapbase,
>> +		 uart.port.irq, uart.port.iotype);
>>  #endif
>>
>=20
>=20

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From - Thu Nov 08 21:38:09 2018
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From: Peter Hurley <peter@hurleysoftware.com>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: Re: [PATCH v2 01/11] tty: serial: 8250: Fix whitespace errors
Date: Fri, 18 Dec 2015 07:11:28 -0800
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Cc: linux-serial@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffe
To: Anton Wuerfel <anton.wuerfel@fau.de>
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On 12/18/2015 03:21 AM, Anton Wuerfel wrote:
> This patch fixes whitespace errors reported by checkpatch to increase
> readability. Main focus is on missing spaces after commas in
> function headers and macros (like foo,bar edited to foo, bar).

Reviewed-by: Peter Hurley <peter@hurleysoftware.com>

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Subject: Re: [PATCH v2 02/11] tty: serial: 8250: Replace spaces with tabs
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On 12/18/2015 03:21 AM, Anton Wuerfel wrote:
> Indentation is changed to match the correct format of using tabs instead
> of spaces wherever possible.

Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
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Subject: Re: [PATCH v2 03/11] tty: serial: 8250: Fix braces after struct
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Cc: linux-serial@vger.kernel.org,
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To: Anton Wuerfel <anton.wuerfel@fau.de>
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On 12/18/2015 03:21 AM, Anton Wuerfel wrote:
> This patch fixes a checkpatch warning by moving an opening curly brace
> to its correct position.

Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
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Cc: linux-serial@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
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To: Anton Wuerfel <anton.wuerfel@fau.de>,
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On 12/18/2015 03:21 AM, Anton Wuerfel wrote:
> Hello Peter,
> 
> thanks for your feedback. We updated the patches according to your remarks.

Not a problem; on the contrary, thanks for the patches.

Just a procedural note: it's customary to address the patches to
the maintainer(s) and cc others and the list. It's not really a problem here
because Greg picks up everything but that's not true for other subsystems.
Just thought I'd let you know.

Regards,
Peter Hurley


> This patch set fixes several checkpatch warnings in tty/serial/8250.
> 
> Patch 1/11:  Adds missing spaces (mainly to function/macro headers)
> Patch 2/11:  Replace spaces with tabs wherever possible
> Patch 3/11:  Slight patch which moves an opening curly brace
> Patch 4/11:  Fixes multiline comment style
> Patch 5/11:  Removes else blocks after return statements
> Patch 6/11:  Slight patch which moves EXPORT_SYMBOL macro to correct position
> Patch 7/11:  Slight patch which removes an unneccessary line continuation
> Patch 8/11:  Slight patch which adds parentheses to a macro definition
> Patch 9/11:  Merges user-visible multiline strings to a single line
> Patch 10/11: Replaces printk by corresponding variant of pr_*
> Patch 11/11: Fixes code indentation
> 
> Remaining checkpatch warnings after applying this patch series:
> 
> -line over 80 characters
> 	This error mostly occurs in serial_cs.c, which contains long-lined
> 	macro calls. However, splitting these calls into multiple lines would
> 	not increase readability.
> 
> -externs should be avoided in .c files
> 	This occurs in 8250_hp300.c. There is no corresponding header file
> 	the extern statement could be moved to. It could be moved to 8250.h
> 	but this would affect other .c files.
> 
> -Use #include <linux/*.h> instead of <asm/*.h>
> 	This warning has been left open for more experienced kernel hackers.
> 	This patch series is about style issues. We do not intend to alter
> 	the code behavior.
> 
> -struct uart_ops should normally be const
> 	This warning only occurs in 8250_core.c. The corresponding struct
> 	cannot be declared as const because it is altered in
> 	serial8250_isa_init_ports(). Maybe a checkpatch exception should
> 	be added for this particular warning.
> 
> -quoted string split across lines
> 	These strings were ignored because they otherwise would exceed
> 	80 characters in a single line. These particular strings use
> 	format specifiers, which break the ability to grep for them anyway.
> 
> Anton Wuerfel (11):
> Phillip Raffeck (11):
>   tty: serial: 8250: Fix whitespace errors
>   tty: serial: 8250: Replace spaces with tabs
>   tty: serial: 8250: Fix braces after struct
>   tty: serial: 8250: Fix multiline comment style
>   tty: serial: 8250: Remove else after return
>   tty: serial: 8250: Move EXPORT_SYMBOL to function
>   tty: serial: 8250: Fix line continuation warning
>   tty: serial: 8250: Add parentheses to macro
>   tty: serial: 8250: Fix multi-line strings
>   tty: serial: 8250: Replace printk by pr_*
>   tty: serial: 8250: Fix indentation warnings
> 
>  drivers/tty/serial/8250/8250_accent.c        |  2 +-
>  drivers/tty/serial/8250/8250_acorn.c         |  2 +-
>  drivers/tty/serial/8250/8250_boca.c          |  2 +-
>  drivers/tty/serial/8250/8250_core.c          | 15 ++---
>  drivers/tty/serial/8250/8250_exar_st16c554.c |  2 +-
>  drivers/tty/serial/8250/8250_fourport.c      |  2 +-
>  drivers/tty/serial/8250/8250_gsc.c           |  6 +-
>  drivers/tty/serial/8250/8250_hp300.c         | 25 ++++----
>  drivers/tty/serial/8250/8250_hub6.c          |  2 +-
>  drivers/tty/serial/8250/8250_ingenic.c       | 12 ++--
>  drivers/tty/serial/8250/8250_pci.c           | 49 +++++++--------
>  drivers/tty/serial/8250/8250_pnp.c           | 16 ++---
>  drivers/tty/serial/8250/8250_port.c          | 50 ++++++++--------
>  drivers/tty/serial/8250/serial_cs.c          | 89 +++++++++++++++-------------
>  14 files changed, 142 insertions(+), 132 deletions(-)
> 

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Subject: Re: [PATCH v2 05/11] tty: serial: 8250: Remove else after return
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Cc: linux-serial@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
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	Wang Long <long.wanglong@huawei.com>,
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	Ralf Baechle <ralf@linux-mips.org>,
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	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffe
To: Anton Wuerfel <anton.wuerfel@fau.de>
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On 12/18/2015 03:21 AM, Anton Wuerfel wrote:
> This patch fixes checkpatch warnings about unnecessary else blocks af=
ter
> return statements.

Reviewed-by: Peter Hurley <peter@hurleysoftware.com>

See note below.

> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> CC: linux-kernel@i4.cs.fau.de
> ---
>  drivers/tty/serial/8250/8250_pci.c | 15 +++++++--------
>  1 file changed, 7 insertions(+), 8 deletions(-)
>=20
> diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/=
8250/8250_pci.c
> index 7f9f245..09157fa 100644
> --- a/drivers/tty/serial/8250/8250_pci.c
> +++ b/drivers/tty/serial/8250/8250_pci.c
> @@ -805,10 +805,10 @@ static int pci_netmos_9900_numports(struct pci_=
dev *dev)
> =20
>  	pi =3D (c & 0xff);
> =20
> -	if (pi =3D=3D 2) {
> +	if (pi =3D=3D 2)
>  		return 1;
> -	} else if ((pi =3D=3D 0) &&
> -			   (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) {
> +
> +	if ((pi =3D=3D 0) && (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)=
) {
>  		/* two possibilities: 0x30ps encodes number of parallel and
>  		 * serial ports, or 0x1000 indicates *something*. This is not
>  		 * immediately obvious, since the 2s1p+4s configuration seems

checkpatch missed this comment style because it's what netdev uses.
Not a problem, though. We're not quite so formal here.

> @@ -816,12 +816,11 @@ static int pci_netmos_9900_numports(struct pci_=
dev *dev)
>  		 * advertising the same function 3 as the 4s+2s1p config.
>  		 */
>  		sub_serports =3D dev->subsystem_device & 0xf;
> -		if (sub_serports > 0) {
> +		if (sub_serports > 0)
>  			return sub_serports;
> -		} else {
> -			dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on=
 ambiguous config.\n");
> -			return 0;
> -		}
> +
> +		dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on =
ambiguous config.\n");
> +		return 0;
>  	}
> =20
>  	moan_device("unknown NetMos/Mostech program interface", dev);
>=20


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Cc: linux-serial@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffe
To: Anton Wuerfel <anton.wuerfel@fau.de>
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On 12/18/2015 03:21 AM, Anton Wuerfel wrote:
> This patch moves EXPORT_SYMBOL macros directly after the definition of
> the corresponding symbol to remove checkpatch warnings.

Reviewed-by: Peter Hurley <peter@hurleysoftware.com>

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Subject: Re: [PATCH v2 06/11] tty: serial: 8250: Move EXPORT_SYMBOL to
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Cc: linux-serial@vger.kernel.org,
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To: Anton Wuerfel <anton.wuerfel@fau.de>
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On 12/18/2015 03:21 AM, Anton Wuerfel wrote:
> This patch moves EXPORT_SYMBOL macros directly after the definition of
> the corresponding symbol to remove checkpatch warnings.

Reviewed-by: Peter Hurley <peter@hurleysoftware.com>

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Subject: Re: [PATCH v2 04/11] tty: serial: 8250: Fix multiline comment style
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To: Anton Wuerfel <anton.wuerfel@fau.de>
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On 12/18/2015 03:21 AM, Anton Wuerfel wrote:
> Checkpatch outputs some warnings about incorrect comment style,
> which is fixed by this patch.

Reviewed-by: Peter Hurley <peter@hurleysoftware.com>

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	Phillip Raffeck <phillip.raffe
To: Anton Wuerfel <anton.wuerfel@fau.de>
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On 12/18/2015 03:21 AM, Anton Wuerfel wrote:
> Fixed checkpatch warning about an unnecessary line continuation in a
> multi-line variable assignment.

Reviewed-by: Peter Hurley <peter@hurleysoftware.com>

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Subject: Re: [PATCH v2 08/11] tty: serial: 8250: Add parentheses to macro
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On 12/18/2015 03:22 AM, Anton Wuerfel wrote:
> This patch fixes a checkpatch warning caused by missing parentheses
> in the definition of a macro.

Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
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Subject: Re: [PATCH v2 09/11] tty: serial: 8250: Fix multi-line strings
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To: Anton Wuerfel <anton.wuerfel@fau.de>
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On 12/18/2015 03:22 AM, Anton Wuerfel wrote:
> Merged user-visible multi-line strings into a single line according to the
> Linux Kernel Coding Style, which allows user-visible strings to exceed the
> maximum line length of 80 characters. The main reason for this is to
> facilitate grepping for these strings.
> However, some strings were ignored in this patch, because the use of
> format specifiers breaks the ability to grep anyway.

Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
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From - Thu Nov 08 21:38:10 2018
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Subject: Re: [PATCH v2 11/11] tty: serial: 8250: Fix indentation warnings
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	Phillip Raffeck <phillip.raffe
To: Anton Wuerfel <anton.wuerfel@fau.de>
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On 12/18/2015 03:22 AM, Anton Wuerfel wrote:
> Checkpatch complains about incorrect indentation of switch/case statements.
> This patch fixes the corresponding warnings. Additionally some indentation
> is changed to match the correct format specified in the Linux Kernel
> Coding Style.

Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
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Subject: Re: Aw: Re: [RFC PATCH urcu on mips, parisc] Fix: compat_futex
 should work-around futex signal-restart kernel bug
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Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
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To: Helge Deller <deller@gmx.de>
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----- On Dec 17, 2015, at 11:22 AM, Helge Deller deller@gmx.de wrote:

> Hello Mathieu,
> 
>> > When testing liburcu on a 3.18 Linux kernel, 2-core MIPS (cpu model :
>> > Ingenic JZRISC V4.15  FPU V0.0), we notice that a blocked sys_futex
>> > FUTEX_WAIT returns -1, errno=ENOSYS when interrupted by a SA_RESTART
>> > signal handler. This spurious ENOSYS behavior causes hangs in liburcu
>> > 0.9.x. Running a MIPS 3.18 kernel under a QEMU emulator exhibits the
>> > same behavior. This might affect earlier kernels.
>> > 
>> > This issue appears to be fixed in 3.18.y stable kernels and 3.19, but
>> > nevertheless, we should try to handle this kernel bug more gracefully
>> > than a user-space hang due to unexpected spurious ENOSYS return value.
>> 
>> It's actually fixed in 3.19, but not in 3.18.y stable kernels. The
>> Linux kernel upstream fix commit is:
>> e967ef02 "MIPS: Fix restart of indirect syscalls"
> 
> But that patch fixes mips only.

Indeed, I do not expect this commit to have any effect on parisc.

> 
>> I've created a small test program that could also be used on parisc
>> to check if it suffers from the same issue (see attached).
>> 
>> On bogus mips kernels, we see the following output:
>> [OK] Test program with pid: 5748 SIGUSR1 handler
>> [FAIL] futex returns -1, Function not implemented
> 
> I tested it on a recent 4.2 kernel on parisc.
> It fails as you describe:
> 
> Testing futex sigrestart. Stop with CTRL-c.
> [OK] Test program with pid: 1361 SIGUSR1 handler
> [OK] Test program with pid: 1361 SIGUSR1 handler
> [FAIL] futex returns -1, Function not implemented
> [OK] Test program with pid: 1361 SIGUSR1 handler
> [FAIL] futex returns -1, Function not implemented
> 
> strace gives:
> [pid  1329] futex(0x1210c, FUTEX_WAIT, -1, NULL <unfinished ...>
> [pid  1328] nanosleep({1, 0},  <unfinished ...>
> [pid  1329] <... futex resumed> )       = ? ERESTARTSYS (To be restarted if
> SA_RESTART is set)
> [pid  1329] write(2, "[FAIL] futex returns -1, Functio"..., 50[FAIL] futex
> returns -1, Function not implemented)

Looks like parisc has an issue very similar to the one that
has been fixed on MIPS by e967ef02 "MIPS: Fix restart of indirect syscalls".

> 
> 
>> > Therefore, fallback on the "async-safe" version of compat_futex in those
>> > situations where FUTEX_WAIT returns ENOSYS. This async-safe fallback has
>> > the nice property of being OK to use concurrently with other FUTEX_WAKE
>> > and FUTEX_WAIT futex() calls, because it's simply a busy-wait scheme.
>> > 
>> > We suspect that parisc might be affected by a similar issue (Debian
>> > build bots reported a similar hang on both mips and parisc), but we do
>> > not have access to the hardware required to test this hypothesis.
> 
> If you want access to a machine, let me know.
> I'll try the patch below as well..

This would be very useful indeed, just to make sure our approach to
futex fallback in liburcu works fine on parisc.

I'm no parisc assembly expert though, but I suspect the issue
would be quite similar to the one already fixed on MIPS. The
existing fix for MIPS would be a good starting point to see if
something similar is missing on parisc.

When time allows, we should consider cleaning up my test case for
restart of indirect system calls and add it to kselftest. It's
the second architecture that has the same defect, which means this
behavior is seldom tested.

Thanks,

Mathieu

> 
>> > Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
>> > CC: Michael Jeanson <mjeanson@efficios.com>
>> > CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
>> > CC: Ralf Baechle <ralf@linux-mips.org>
>> > CC: linux-mips@linux-mips.org
>> > CC: linux-kernel@vger.kernel.org
>> > CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
>> > CC: Helge Deller <deller@gmx.de>
>> > CC: linux-parisc@vger.kernel.org
>> > ---
>> > compat_futex.c |  2 ++
>> > urcu/futex.h   | 12 +++++++++++-
>> > 2 files changed, 13 insertions(+), 1 deletion(-)
>> > 
>> > diff --git a/compat_futex.c b/compat_futex.c
>> > index b7f78f0..9e918fe 100644
>> > --- a/compat_futex.c
>> > +++ b/compat_futex.c
>> > @@ -111,6 +111,8 @@ end:
>> >  * _ASYNC SIGNAL-SAFE_.
>> >  * For now, timeout, uaddr2 and val3 are unused.
>> >  * Waiter will busy-loop trying to read the condition.
>> > + * It is OK to use compat_futex_async() on a futex address on which
>> > + * futex() WAKE operations are also performed.
>> >  */
>> > 
>> > int compat_futex_async(int32_t *uaddr, int op, int32_t val,
>> > diff --git a/urcu/futex.h b/urcu/futex.h
>> > index 4d16cfa..a17eda8 100644
>> > --- a/urcu/futex.h
>> > +++ b/urcu/futex.h
>> > @@ -73,7 +73,17 @@ static inline int futex_noasync(int32_t *uaddr, int op,
>> > int32_t val,
>> > 
>> > 	ret = futex(uaddr, op, val, timeout, uaddr2, val3);
>> > 	if (caa_unlikely(ret < 0 && errno == ENOSYS)) {
>> > -		return compat_futex_noasync(uaddr, op, val, timeout,
>> > +		/*
>> > +		 * The fallback on ENOSYS is the async-safe version of
>> > +		 * the compat futex implementation, because the
>> > +		 * async-safe compat implementation allows being used
>> > +		 * concurrently with calls to futex(). Indeed, sys_futex
>> > +		 * FUTEX_WAIT, on some architectures (e.g. mips), within
>> > +		 * a given process, spuriously return ENOSYS due to
>> > +		 * signal restart bugs on some kernel versions (e.g.
>> > +		 * Linux kernel 3.18 and possibly earlier).
>> > +		 */
>> > +		return compat_futex_async(uaddr, op, val, timeout,
>> > 				uaddr2, val3);
>> > 	}
> > > 	return ret;

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
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Subject: Re: Aw: Re: [RFC PATCH urcu on mips, parisc] Fix: compat_futex should
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Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
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To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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Hi Mathieu,

On 18.12.2015 20:58, Mathieu Desnoyers wrote:
> ----- On Dec 17, 2015, at 11:22 AM, Helge Deller deller@gmx.de wrote:
> 
>> Hello Mathieu,
>>
>>>> When testing liburcu on a 3.18 Linux kernel, 2-core MIPS (cpu model :
>>>> Ingenic JZRISC V4.15  FPU V0.0), we notice that a blocked sys_futex
>>>> FUTEX_WAIT returns -1, errno=ENOSYS when interrupted by a SA_RESTART
>>>> signal handler. This spurious ENOSYS behavior causes hangs in liburcu
>>>> 0.9.x. Running a MIPS 3.18 kernel under a QEMU emulator exhibits the
>>>> same behavior. This might affect earlier kernels.
>>>>
>>>> This issue appears to be fixed in 3.18.y stable kernels and 3.19, but
>>>> nevertheless, we should try to handle this kernel bug more gracefully
>>>> than a user-space hang due to unexpected spurious ENOSYS return value.
>>>
>>> It's actually fixed in 3.19, but not in 3.18.y stable kernels. The
>>> Linux kernel upstream fix commit is:
>>> e967ef02 "MIPS: Fix restart of indirect syscalls"
>>
>> But that patch fixes mips only.
> 
> Indeed, I do not expect this commit to have any effect on parisc.
> 
>>
>>> I've created a small test program that could also be used on parisc
>>> to check if it suffers from the same issue (see attached).
>>>
>>> On bogus mips kernels, we see the following output:
>>> [OK] Test program with pid: 5748 SIGUSR1 handler
>>> [FAIL] futex returns -1, Function not implemented
>>
>> I tested it on a recent 4.2 kernel on parisc.
>> It fails as you describe:
>>
>> Testing futex sigrestart. Stop with CTRL-c.
>> [OK] Test program with pid: 1361 SIGUSR1 handler
>> [OK] Test program with pid: 1361 SIGUSR1 handler
>> [FAIL] futex returns -1, Function not implemented
>> [OK] Test program with pid: 1361 SIGUSR1 handler
>> [FAIL] futex returns -1, Function not implemented
>>
>> strace gives:
>> [pid  1329] futex(0x1210c, FUTEX_WAIT, -1, NULL <unfinished ...>
>> [pid  1328] nanosleep({1, 0},  <unfinished ...>
>> [pid  1329] <... futex resumed> )       = ? ERESTARTSYS (To be restarted if
>> SA_RESTART is set)
>> [pid  1329] write(2, "[FAIL] futex returns -1, Functio"..., 50[FAIL] futex
>> returns -1, Function not implemented)
> 
> Looks like parisc has an issue very similar to the one that
> has been fixed on MIPS by e967ef02 "MIPS: Fix restart of indirect syscalls".

Yes.

>>>> Therefore, fallback on the "async-safe" version of compat_futex in those
>>>> situations where FUTEX_WAIT returns ENOSYS. This async-safe fallback has
>>>> the nice property of being OK to use concurrently with other FUTEX_WAKE
>>>> and FUTEX_WAIT futex() calls, because it's simply a busy-wait scheme.
>>>>
>>>> We suspect that parisc might be affected by a similar issue (Debian
>>>> build bots reported a similar hang on both mips and parisc), but we do
>>>> not have access to the hardware required to test this hypothesis.
>>
>> If you want access to a machine, let me know.
>> I'll try the patch below as well..
> 
> This would be very useful indeed, just to make sure our approach to
> futex fallback in liburcu works fine on parisc.

Yes, but will take me some time...

> I'm no parisc assembly expert though, but I suspect the issue
> would be quite similar to the one already fixed on MIPS. The
> existing fix for MIPS would be a good starting point to see if
> something similar is missing on parisc.

Yes, I've already started to look into the parisc assembly parts.
The problems seems to be both the same, the syscall number is not
reserved during a syscall restart.
We have problems with pthread cancellation in glibc too, maybe
it's related to this bug.

> When time allows, we should consider cleaning up my test case for
> restart of indirect system calls and add it to kselftest. 

I was thinking of adding it to the Linux Test Project (LTP) :-)

> It's
> the second architecture that has the same defect, which means this
> behavior is seldom tested.

Helge

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From - Thu Nov 08 21:38:10 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix syscall restarts
Date: Sat, 19 Dec 2015 00:30:34 +0100
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Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
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On parisc syscalls which are interrupted by signals sometimes fail to restart
and instead return -ENOSYS which then in the worst case lead to userspace
crashes.
A similiar problem existed on MIPS and was fixed by commit e967ef02 
("MIPS: Fix restart of indirect syscalls").

On parisc the current syscall restart code assumes hat the syscall number is
always loaded in the delay branch of the ble instruction as defined in the
unistd.h header file and as such never restored %r20 before returning to
userspace:
	ble 0x100(%sr2, %r0)
	ldi #syscall_nr, %r20

This assumption is at least not true for code which uses the syscall() glibc
function, which instead uses this syntax:
	ble 0x100(%sr2, %r0)
	copy regX, %r20
where regX depend on how the compiler optimizes the code and register usage.

This patch fixes this problem by adding code to analyze how the syscall number
is loaded in the delay branch and - if needed - copy the syscall number to regX
prior returning to userspace for the syscall restart.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index dc1ea79..b0414ad 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -435,6 +435,48 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs, int in_syscall)
 		regs->gr[28]);
 }
 
+/*
+ * Check the delay branch in userspace how the syscall number gets loaded into
+ * %r20 and adjust as needed.
+ */
+
+static void check_syscallno_in_delay_branch(struct pt_regs *regs)
+{
+	unsigned int opcode, source_reg;
+	u32 __user *uaddr;
+
+	/* Usually we don't have to restore %r20 (the system call number)
+	 * because it gets loaded in the delay slot of the branch external
+	 * instruction via the ldi instruction.
+	 * In some cases a register-to-register copy instruction might have
+	 * been used instead, in which case we need to copy the syscall
+	 * number into the source register before returning to userspace.
+	 */
+
+	/* A syscall is just a branch, so all
+	 * we have to do is fiddle the return pointer.
+	 */
+	regs->gr[31] -= 8; /* delayed branching */
+
+	/* Get assembler opcode of code in delay branch */
+	uaddr = (unsigned int *) (regs->gr[31] + 1);
+	get_user(opcode, uaddr);
+
+	/* Check if delay branch uses "ldi int,%r20" */
+	if ((opcode & 0xffff0000) == 0x34140000)
+		return;	/* everything ok, just return */
+
+	/* Check if delay branch uses "copy %rX,%r20" */
+	if ((opcode & 0xff00ffff) == 0x08000254) {
+		source_reg = (opcode >> 16) & 31;
+		regs->gr[source_reg] = regs->gr[20];
+		return;
+	}
+
+	pr_warn("syscall restart: %s (pid %d): unexpected opcode 0x%08x\n",
+		current->comm, task_pid_nr(current), opcode);
+}
+
 static inline void
 syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
 {
@@ -457,10 +499,7 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
 		}
 		/* fallthrough */
 	case -ERESTARTNOINTR:
-		/* A syscall is just a branch, so all
-		 * we have to do is fiddle the return pointer.
-		 */
-		regs->gr[31] -= 8; /* delayed branching */
+		check_syscallno_in_delay_branch(regs);
 		break;
 	}
 }
@@ -510,15 +549,9 @@ insert_restart_trampoline(struct pt_regs *regs)
 	}
 	case -ERESTARTNOHAND:
 	case -ERESTARTSYS:
-	case -ERESTARTNOINTR: {
-		/* Hooray for delayed branching.  We don't
-		 * have to restore %r20 (the system call
-		 * number) because it gets loaded in the delay
-		 * slot of the branch external instruction.
-		 */
-		regs->gr[31] -= 8;
+	case -ERESTARTNOINTR:
+		check_syscallno_in_delay_branch(regs);
 		return;
-	}
 	default:
 		break;
 	}
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From - Thu Nov 08 21:38:10 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.mips.general,gmane.linux.kernel
Subject: Re: Aw: Re: [RFC PATCH urcu on mips, parisc] Fix: compat_futex should
 work-around futex signal-restart kernel bug
Date: Sat, 19 Dec 2015 11:37:04 +0100
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Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	Jon Bernard <jbernard@debian.org>,
	Michael Jeanson <mjeanson@efficios.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	linux-mips <linux-mips@linux-mips.org>,
	linux-kernel@vger.kernel.org,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	linux-parisc <linux-parisc@vger.kernel.org>,
	Ed Swierk <eswierk@skyportsystems.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:26244 gmane.linux.ports.mips.general:51850 gmane.linux.kernel:2112241
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26244>

Hi Mathieu,

On 18.12.2015 21:42, Helge Deller wrote:
> On 18.12.2015 20:58, Mathieu Desnoyers wrote:
>>>>> When testing liburcu on a 3.18 Linux kernel, 2-core MIPS (cpu model :
>>>>> Ingenic JZRISC V4.15  FPU V0.0), we notice that a blocked sys_futex
>>>>> FUTEX_WAIT returns -1, errno=ENOSYS when interrupted by a SA_RESTART
>>>>> signal handler. This spurious ENOSYS behavior causes hangs in liburcu
>>>>> 0.9.x. Running a MIPS 3.18 kernel under a QEMU emulator exhibits the
>>>>> same behavior. This might affect earlier kernels.
>>>>>
>>>>> This issue appears to be fixed in 3.18.y stable kernels and 3.19, but
>>>>> nevertheless, we should try to handle this kernel bug more gracefully
>>>>> than a user-space hang due to unexpected spurious ENOSYS return value.
>>>>
>>>> It's actually fixed in 3.19, but not in 3.18.y stable kernels. The
>>>> Linux kernel upstream fix commit is:
>>>> e967ef02 "MIPS: Fix restart of indirect syscalls"

>> Looks like parisc has an issue very similar to the one that
>> has been fixed on MIPS by e967ef02 "MIPS: Fix restart of indirect syscalls".

Yes, parisc is affected the same way.
I've posted a patch to the parisc mailing list which fixes this issue for
parisc and which I plan to push into stable kernels:
http://thread.gmane.org/gmane.linux.ports.parisc/26243

Regarding your patch for liburcu:

>>>>> Therefore, fallback on the "async-safe" version of compat_futex in those
>>>>> situations where FUTEX_WAIT returns ENOSYS. This async-safe fallback has
>>>>> the nice property of being OK to use concurrently with other FUTEX_WAKE
>>>>> and FUTEX_WAIT futex() calls, because it's simply a busy-wait scheme.

I've tested your patch. It does not produce any regressions on parisc, but I can't
say for sure if it really works. ENOSYS is returned randomly, so maybe I didn't
faced a situation where your patch actually was used.

Helge
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From - Thu Nov 08 21:38:10 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Initialize PCI bride cache line and default latency
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PCI controllers and pci-pci bridges may have not been fully initialized
regarding cache line and defaul latency.
This partly reverts commit 5f0e9b4 (parisc: Remove unused pcibios_init_bus())

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index 71889ea..89c53bf 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -167,6 +167,7 @@ static inline void pcibios_register_hba(struct pci_hba_data *x)
 {
 }
 #endif
+extern void pcibios_init_bridge(struct pci_dev *);
 
 /*
  * pcibios_assign_all_busses() is used in drivers/pci/pci.c:pci_do_scan_bus()
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index c99f3dd..125c05a 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -170,6 +170,31 @@ void pcibios_set_master(struct pci_dev *dev)
 			      (0x80 << 8) | pci_cache_line_size);
 }
 
+/*
+ * pcibios_init_bridge() initializes cache line and default latency
+ * for pci controllers and pci-pci bridges
+ */
+void __init pcibios_init_bridge(struct pci_dev *dev)
+{
+	unsigned short bridge_ctl, bridge_ctl_new;
+
+	/* We deal only with pci controllers and pci-pci bridges. */
+	if (!dev || (dev->class >> 8) != PCI_CLASS_BRIDGE_PCI)
+		return;
+
+	/* PCI-PCI bridge - set the cache line and default latency
+	   (32) for primary and secondary buses. */
+	pci_write_config_byte(dev, PCI_SEC_LATENCY_TIMER, 32);
+
+	pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &bridge_ctl);
+
+	bridge_ctl_new = bridge_ctl | PCI_BRIDGE_CTL_PARITY |
+		PCI_BRIDGE_CTL_SERR | PCI_BRIDGE_CTL_MASTER_ABORT;
+	dev_info(&dev->dev, "Changing bridge control from 0x%08x to 0x%08x\n",
+		bridge_ctl, bridge_ctl_new);
+
+	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bridge_ctl_new);
+}
 
 /*
  * pcibios align resources() is called every time generic PCI code
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index a0580af..1133b5c 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -599,8 +599,10 @@ dino_fixup_bus(struct pci_bus *bus)
 		** P2PB's only have 2 BARs, no IRQs.
 		** I'd like to just ignore them for now.
 		*/
-		if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)
+		if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)  {
+			pcibios_init_bridge(dev);
 			continue;
+		}
 
 		/* null out the ROM resource if there is one (we don't
 		 * care about an expansion rom on parisc, since it
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 42844c2..751935c 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -787,11 +787,14 @@ lba_fixup_bus(struct pci_bus *bus)
 		bus->bridge_ctl &= ~(status & PCI_STATUS_FAST_BACK);
 #endif
 
+
                 /*
 		** P2PB's have no IRQs. ignore them.
 		*/
-		if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)
+		if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
+			pcibios_init_bridge(dev);
 			continue;
+		}
 
 		/* Adjust INTERRUPT_LINE for this dev */
 		iosapic_fixup_irq(ldev->iosapic_obj, dev);
--
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From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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Subject: Re: [PATCH] parisc: Fix syscall restarts
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----- On Dec 18, 2015, at 6:30 PM, Helge Deller deller@gmx.de wrote:

> On parisc syscalls which are interrupted by signals sometimes fail to restart
> and instead return -ENOSYS which then in the worst case lead to userspace
> crashes.
> A similiar problem existed on MIPS and was fixed by commit e967ef02
> ("MIPS: Fix restart of indirect syscalls").
> 
> On parisc the current syscall restart code assumes hat the syscall number is
> always loaded in the delay branch of the ble instruction as defined in the
> unistd.h header file and as such never restored %r20 before returning to
> userspace:
>	ble 0x100(%sr2, %r0)
>	ldi #syscall_nr, %r20
> 
> This assumption is at least not true for code which uses the syscall() glibc
> function, which instead uses this syntax:
>	ble 0x100(%sr2, %r0)
>	copy regX, %r20
> where regX depend on how the compiler optimizes the code and register usage.
> 
> This patch fixes this problem by adding code to analyze how the syscall number
> is loaded in the delay branch and - if needed - copy the syscall number to regX
> prior returning to userspace for the syscall restart.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> Cc: stable@vger.kernel.org
> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> 
> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
> index dc1ea79..b0414ad 100644
> --- a/arch/parisc/kernel/signal.c
> +++ b/arch/parisc/kernel/signal.c
> @@ -435,6 +435,48 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs,
> int in_syscall)
> 		regs->gr[28]);
> }
> 
> +/*
> + * Check the delay branch in userspace how the syscall number gets loaded into
> + * %r20 and adjust as needed.

I'm pretty sure "Check the delay branch in userspace how the syscall..."
is not an English construct. ;-) Suggested rewording:

"Check how the syscall number gets loaded into %r20 within
the delay branch in userspace and adjust as needed."

> + */
> +
> +static void check_syscallno_in_delay_branch(struct pt_regs *regs)
> +{
> +	unsigned int opcode, source_reg;

Why "unsigned int" above rather than u32 ? Since we're using
opcode as target variable for a get_user, it would be clearer
if the type of the __user * match the type of the target kernel
variable. (understood that those happen to have the same bitness
and type size on all Linux architectures, but it would be clearer
nevertheless).

> +	u32 __user *uaddr;
> +
> +	/* Usually we don't have to restore %r20 (the system call number)
> +	 * because it gets loaded in the delay slot of the branch external
> +	 * instruction via the ldi instruction.
> +	 * In some cases a register-to-register copy instruction might have
> +	 * been used instead, in which case we need to copy the syscall
> +	 * number into the source register before returning to userspace.
> +	 */
> +
> +	/* A syscall is just a branch, so all
> +	 * we have to do is fiddle the return pointer.
> +	 */
> +	regs->gr[31] -= 8; /* delayed branching */
> +
> +	/* Get assembler opcode of code in delay branch */
> +	uaddr = (unsigned int *) (regs->gr[31] + 1);
> +	get_user(opcode, uaddr);

get_user() can fail due to EFAULT. This error should be
handled here, otherwise this could lead to the following
code using an uninitialized opcode variable, which could
indirectly leak a few bits of kernel stack information
to userspace (security concern). One attack vector I have
in mind for this is ptrace(), which might be able to tweak
those register values.

> +
> +	/* Check if delay branch uses "ldi int,%r20" */
> +	if ((opcode & 0xffff0000) == 0x34140000)
> +		return;	/* everything ok, just return */
> +
> +	/* Check if delay branch uses "copy %rX,%r20" */
> +	if ((opcode & 0xff00ffff) == 0x08000254) {
> +		source_reg = (opcode >> 16) & 31;

Can you explain the reasoning behind the & 31 mask ?
I'm no parisc expert, but this seems rather odd.
Do you really mean "% 31" which translates to "& 5" ?
It would make more sense since there are 32 "gr"
registers. With & 31, a carefully crafted opcode
could overflow the gr[32] array, and cause a kernel
overflow allowing to overwrite kernel memory
(security issue).

If it's the case, then it would also be good to
check that the register selector within the opcode
is not larger than 31 (e.g. applying to fr or sr
register), rather than applying the modulo and
assuming it's a gr and corrupt userspace state.

Thanks,

Mathieu

> +		regs->gr[source_reg] = regs->gr[20];
> +		return;
> +	}
> +
> +	pr_warn("syscall restart: %s (pid %d): unexpected opcode 0x%08x\n",
> +		current->comm, task_pid_nr(current), opcode);
> +}
> +
> static inline void
> syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
> {
> @@ -457,10 +499,7 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction
> *ka)
> 		}
> 		/* fallthrough */
> 	case -ERESTARTNOINTR:
> -		/* A syscall is just a branch, so all
> -		 * we have to do is fiddle the return pointer.
> -		 */
> -		regs->gr[31] -= 8; /* delayed branching */
> +		check_syscallno_in_delay_branch(regs);
> 		break;
> 	}
> }
> @@ -510,15 +549,9 @@ insert_restart_trampoline(struct pt_regs *regs)
> 	}
> 	case -ERESTARTNOHAND:
> 	case -ERESTARTSYS:
> -	case -ERESTARTNOINTR: {
> -		/* Hooray for delayed branching.  We don't
> -		 * have to restore %r20 (the system call
> -		 * number) because it gets loaded in the delay
> -		 * slot of the branch external instruction.
> -		 */
> -		regs->gr[31] -= 8;
> +	case -ERESTARTNOINTR:
> +		check_syscallno_in_delay_branch(regs);
> 		return;
> -	}
> 	default:
> 		break;
>  	}

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
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----- On Dec 20, 2015, at 8:59 AM, Mathieu Desnoyers mathieu.desnoyers@efficios.com wrote:

> ----- On Dec 18, 2015, at 6:30 PM, Helge Deller deller@gmx.de wrote:
> 
>> On parisc syscalls which are interrupted by signals sometimes fail to restart
>> and instead return -ENOSYS which then in the worst case lead to userspace
>> crashes.
>> A similiar problem existed on MIPS and was fixed by commit e967ef02
>> ("MIPS: Fix restart of indirect syscalls").
>> 
>> On parisc the current syscall restart code assumes hat the syscall number is
>> always loaded in the delay branch of the ble instruction as defined in the
>> unistd.h header file and as such never restored %r20 before returning to
>> userspace:
>>	ble 0x100(%sr2, %r0)
>>	ldi #syscall_nr, %r20
>> 
>> This assumption is at least not true for code which uses the syscall() glibc
>> function, which instead uses this syntax:
>>	ble 0x100(%sr2, %r0)
>>	copy regX, %r20
>> where regX depend on how the compiler optimizes the code and register usage.
>> 
>> This patch fixes this problem by adding code to analyze how the syscall number
>> is loaded in the delay branch and - if needed - copy the syscall number to regX
>> prior returning to userspace for the syscall restart.
>> 
>> Signed-off-by: Helge Deller <deller@gmx.de>
>> Cc: stable@vger.kernel.org
>> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
>> 
>> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
>> index dc1ea79..b0414ad 100644
>> --- a/arch/parisc/kernel/signal.c
>> +++ b/arch/parisc/kernel/signal.c
>> @@ -435,6 +435,48 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs,
>> int in_syscall)
>> 		regs->gr[28]);
>> }
>> 
>> +/*
>> + * Check the delay branch in userspace how the syscall number gets loaded into
>> + * %r20 and adjust as needed.
> 
> I'm pretty sure "Check the delay branch in userspace how the syscall..."
> is not an English construct. ;-) Suggested rewording:
> 
> "Check how the syscall number gets loaded into %r20 within
> the delay branch in userspace and adjust as needed."
> 
>> + */
>> +
>> +static void check_syscallno_in_delay_branch(struct pt_regs *regs)
>> +{
>> +	unsigned int opcode, source_reg;
> 
> Why "unsigned int" above rather than u32 ? Since we're using
> opcode as target variable for a get_user, it would be clearer
> if the type of the __user * match the type of the target kernel
> variable. (understood that those happen to have the same bitness
> and type size on all Linux architectures, but it would be clearer
> nevertheless).
> 
>> +	u32 __user *uaddr;
>> +
>> +	/* Usually we don't have to restore %r20 (the system call number)
>> +	 * because it gets loaded in the delay slot of the branch external
>> +	 * instruction via the ldi instruction.
>> +	 * In some cases a register-to-register copy instruction might have
>> +	 * been used instead, in which case we need to copy the syscall
>> +	 * number into the source register before returning to userspace.
>> +	 */
>> +
>> +	/* A syscall is just a branch, so all
>> +	 * we have to do is fiddle the return pointer.
>> +	 */
>> +	regs->gr[31] -= 8; /* delayed branching */
>> +
>> +	/* Get assembler opcode of code in delay branch */
>> +	uaddr = (unsigned int *) (regs->gr[31] + 1);
>> +	get_user(opcode, uaddr);
> 
> get_user() can fail due to EFAULT. This error should be
> handled here, otherwise this could lead to the following
> code using an uninitialized opcode variable, which could
> indirectly leak a few bits of kernel stack information
> to userspace (security concern). One attack vector I have
> in mind for this is ptrace(), which might be able to tweak
> those register values.
> 
>> +
>> +	/* Check if delay branch uses "ldi int,%r20" */
>> +	if ((opcode & 0xffff0000) == 0x34140000)
>> +		return;	/* everything ok, just return */
>> +
>> +	/* Check if delay branch uses "copy %rX,%r20" */
>> +	if ((opcode & 0xff00ffff) == 0x08000254) {
>> +		source_reg = (opcode >> 16) & 31;
> 
> Can you explain the reasoning behind the & 31 mask ?
> I'm no parisc expert, but this seems rather odd.
> Do you really mean "% 31" which translates to "& 5" ?
> It would make more sense since there are 32 "gr"
> registers. With & 31, a carefully crafted opcode
> could overflow the gr[32] array, and cause a kernel
> overflow allowing to overwrite kernel memory
> (security issue).

Hrm, I got my masks temporarily mixed up (early morning
here). This is why I always use constructs such as:

#define GR_REGS_BITS  5
#define NR_GR_REGS    (1U << GR_REGS_BITS)
#define GR_REGS_MASK  (NR_GR_REGS - 1)

and then

v & GR_REGS_MASK;

Which makes everything super-obvious. The & 31 mask
seems therefore technically correct. The
paragraph below still holds though:

> 
> If it's the case, then it would also be good to
> check that the register selector within the opcode
> is not larger than 31 (e.g. applying to fr or sr
> register), rather than applying the modulo and
> assuming it's a gr and corrupt userspace state.
> 

Thanks,

Mathieu

> Thanks,
> 
> Mathieu
> 
>> +		regs->gr[source_reg] = regs->gr[20];
>> +		return;
>> +	}
>> +
>> +	pr_warn("syscall restart: %s (pid %d): unexpected opcode 0x%08x\n",
>> +		current->comm, task_pid_nr(current), opcode);
>> +}
>> +
>> static inline void
>> syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
>> {
>> @@ -457,10 +499,7 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction
>> *ka)
>> 		}
>> 		/* fallthrough */
>> 	case -ERESTARTNOINTR:
>> -		/* A syscall is just a branch, so all
>> -		 * we have to do is fiddle the return pointer.
>> -		 */
>> -		regs->gr[31] -= 8; /* delayed branching */
>> +		check_syscallno_in_delay_branch(regs);
>> 		break;
>> 	}
>> }
>> @@ -510,15 +549,9 @@ insert_restart_trampoline(struct pt_regs *regs)
>> 	}
>> 	case -ERESTARTNOHAND:
>> 	case -ERESTARTSYS:
>> -	case -ERESTARTNOINTR: {
>> -		/* Hooray for delayed branching.  We don't
>> -		 * have to restore %r20 (the system call
>> -		 * number) because it gets loaded in the delay
>> -		 * slot of the branch external instruction.
>> -		 */
>> -		regs->gr[31] -= 8;
>> +	case -ERESTARTNOINTR:
>> +		check_syscallno_in_delay_branch(regs);
>> 		return;
>> -	}
>> 	default:
>> 		break;
>>  	}
> 
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> http://www.efficios.com

-- 
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From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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Subject: Re: Aw: Re: [RFC PATCH urcu on mips, parisc] Fix: compat_futex
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Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	Jon Bernard <jbernard@debian.org>,
	Michael Jeanson <mjeanson@efficios.com>,
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To: Helge Deller <deller@gmx.de>
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----- On Dec 19, 2015, at 5:37 AM, Helge Deller deller@gmx.de wrote:

> Hi Mathieu,
> 
> On 18.12.2015 21:42, Helge Deller wrote:
>> On 18.12.2015 20:58, Mathieu Desnoyers wrote:
>>>>>> When testing liburcu on a 3.18 Linux kernel, 2-core MIPS (cpu model :
>>>>>> Ingenic JZRISC V4.15  FPU V0.0), we notice that a blocked sys_futex
>>>>>> FUTEX_WAIT returns -1, errno=ENOSYS when interrupted by a SA_RESTART
>>>>>> signal handler. This spurious ENOSYS behavior causes hangs in liburcu
>>>>>> 0.9.x. Running a MIPS 3.18 kernel under a QEMU emulator exhibits the
>>>>>> same behavior. This might affect earlier kernels.
>>>>>>
>>>>>> This issue appears to be fixed in 3.18.y stable kernels and 3.19, but
>>>>>> nevertheless, we should try to handle this kernel bug more gracefully
>>>>>> than a user-space hang due to unexpected spurious ENOSYS return value.
>>>>>
>>>>> It's actually fixed in 3.19, but not in 3.18.y stable kernels. The
>>>>> Linux kernel upstream fix commit is:
>>>>> e967ef02 "MIPS: Fix restart of indirect syscalls"
> 
>>> Looks like parisc has an issue very similar to the one that
>>> has been fixed on MIPS by e967ef02 "MIPS: Fix restart of indirect syscalls".
> 
> Yes, parisc is affected the same way.
> I've posted a patch to the parisc mailing list which fixes this issue for
> parisc and which I plan to push into stable kernels:
> http://thread.gmane.org/gmane.linux.ports.parisc/26243
> 
> Regarding your patch for liburcu:
> 
>>>>>> Therefore, fallback on the "async-safe" version of compat_futex in those
>>>>>> situations where FUTEX_WAIT returns ENOSYS. This async-safe fallback has
>>>>>> the nice property of being OK to use concurrently with other FUTEX_WAKE
>>>>>> and FUTEX_WAIT futex() calls, because it's simply a busy-wait scheme.
> 
> I've tested your patch. It does not produce any regressions on parisc, but I
> can't
> say for sure if it really works. ENOSYS is returned randomly, so maybe I didn't
> faced a situation where your patch actually was used.

If you ran make check and make regtest, and nothing
fails/hangs, you should be OK. liburcu runs very heavy
stress-tests which makes it likely to hit race conditions
repeatedly.

Thanks!

Mathieu

> 
> Helge

-- 
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Subject: Re: Aw: Re: [RFC PATCH urcu on mips, parisc] Fix: compat_futex should
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On 20.12.2015 15:11, Mathieu Desnoyers wrote:
> ----- On Dec 19, 2015, at 5:37 AM, Helge Deller deller@gmx.de wrote:
> 
>> Hi Mathieu,
>>
>> On 18.12.2015 21:42, Helge Deller wrote:
>>> On 18.12.2015 20:58, Mathieu Desnoyers wrote:
>>>>>>> When testing liburcu on a 3.18 Linux kernel, 2-core MIPS (cpu model :
>>>>>>> Ingenic JZRISC V4.15  FPU V0.0), we notice that a blocked sys_futex
>>>>>>> FUTEX_WAIT returns -1, errno=ENOSYS when interrupted by a SA_RESTART
>>>>>>> signal handler. This spurious ENOSYS behavior causes hangs in liburcu
>>>>>>> 0.9.x. Running a MIPS 3.18 kernel under a QEMU emulator exhibits the
>>>>>>> same behavior. This might affect earlier kernels.
>>>>>>>
>>>>>>> This issue appears to be fixed in 3.18.y stable kernels and 3.19, but
>>>>>>> nevertheless, we should try to handle this kernel bug more gracefully
>>>>>>> than a user-space hang due to unexpected spurious ENOSYS return value.
>>>>>>
>>>>>> It's actually fixed in 3.19, but not in 3.18.y stable kernels. The
>>>>>> Linux kernel upstream fix commit is:
>>>>>> e967ef02 "MIPS: Fix restart of indirect syscalls"
>>
>>>> Looks like parisc has an issue very similar to the one that
>>>> has been fixed on MIPS by e967ef02 "MIPS: Fix restart of indirect syscalls".
>>
>> Yes, parisc is affected the same way.
>> I've posted a patch to the parisc mailing list which fixes this issue for
>> parisc and which I plan to push into stable kernels:
>> http://thread.gmane.org/gmane.linux.ports.parisc/26243
>>
>> Regarding your patch for liburcu:
>>
>>>>>>> Therefore, fallback on the "async-safe" version of compat_futex in those
>>>>>>> situations where FUTEX_WAIT returns ENOSYS. This async-safe fallback has
>>>>>>> the nice property of being OK to use concurrently with other FUTEX_WAKE
>>>>>>> and FUTEX_WAIT futex() calls, because it's simply a busy-wait scheme.
>>
>> I've tested your patch. It does not produce any regressions on parisc, but I
>> can't
>> say for sure if it really works. ENOSYS is returned randomly, so maybe I didn't
>> faced a situation where your patch actually was used.
> 
> If you ran make check and make regtest, and nothing
> fails/hangs, you should be OK.

Yes, I did run both.

> liburcu runs very heavy
> stress-tests which makes it likely to hit race conditions
> repeatedly.

Helge




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On 20.12.2015 15:09, Mathieu Desnoyers wrote:
> ----- On Dec 20, 2015, at 8:59 AM, Mathieu Desnoyers mathieu.desnoyers@efficios.com wrote:
> 
>> ----- On Dec 18, 2015, at 6:30 PM, Helge Deller deller@gmx.de wrote:
>>
>>> On parisc syscalls which are interrupted by signals sometimes fail to restart
>>> and instead return -ENOSYS which then in the worst case lead to userspace
>>> crashes.
>>> A similiar problem existed on MIPS and was fixed by commit e967ef02
>>> ("MIPS: Fix restart of indirect syscalls").
>>>
>>> On parisc the current syscall restart code assumes hat the syscall number is
>>> always loaded in the delay branch of the ble instruction as defined in the
>>> unistd.h header file and as such never restored %r20 before returning to
>>> userspace:
>>> 	ble 0x100(%sr2, %r0)
>>> 	ldi #syscall_nr, %r20
>>>
>>> This assumption is at least not true for code which uses the syscall() glibc
>>> function, which instead uses this syntax:
>>> 	ble 0x100(%sr2, %r0)
>>> 	copy regX, %r20
>>> where regX depend on how the compiler optimizes the code and register usage.
>>>
>>> This patch fixes this problem by adding code to analyze how the syscall number
>>> is loaded in the delay branch and - if needed - copy the syscall number to regX
>>> prior returning to userspace for the syscall restart.
>>>
>>> Signed-off-by: Helge Deller <deller@gmx.de>
>>> Cc: stable@vger.kernel.org
>>> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
>>>
>>> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
>>> index dc1ea79..b0414ad 100644
>>> --- a/arch/parisc/kernel/signal.c
>>> +++ b/arch/parisc/kernel/signal.c
>>> @@ -435,6 +435,48 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs,
>>> int in_syscall)
>>> 		regs->gr[28]);
>>> }
>>>
>>> +/*
>>> + * Check the delay branch in userspace how the syscall number gets loaded into
>>> + * %r20 and adjust as needed.
>>
>> I'm pretty sure "Check the delay branch in userspace how the syscall..."
>> is not an English construct. ;-) Suggested rewording:
>>
>> "Check how the syscall number gets loaded into %r20 within
>> the delay branch in userspace and adjust as needed."

Thanks!
I'll change that.


>>> + */
>>> +
>>> +static void check_syscallno_in_delay_branch(struct pt_regs *regs)
>>> +{
>>> +	unsigned int opcode, source_reg;
>>
>> Why "unsigned int" above rather than u32 ? Since we're using
>> opcode as target variable for a get_user, it would be clearer
>> if the type of the __user * match the type of the target kernel
>> variable. (understood that those happen to have the same bitness
>> and type size on all Linux architectures, but it would be clearer
>> nevertheless).

Yes, seems OK.
I'll change that.

>>> +	u32 __user *uaddr;
>>> +
>>> +	/* Usually we don't have to restore %r20 (the system call number)
>>> +	 * because it gets loaded in the delay slot of the branch external
>>> +	 * instruction via the ldi instruction.
>>> +	 * In some cases a register-to-register copy instruction might have
>>> +	 * been used instead, in which case we need to copy the syscall
>>> +	 * number into the source register before returning to userspace.
>>> +	 */
>>> +
>>> +	/* A syscall is just a branch, so all
>>> +	 * we have to do is fiddle the return pointer.
>>> +	 */
>>> +	regs->gr[31] -= 8; /* delayed branching */
>>> +
>>> +	/* Get assembler opcode of code in delay branch */
>>> +	uaddr = (unsigned int *) (regs->gr[31] + 1);
>>> +	get_user(opcode, uaddr);
>>
>> get_user() can fail due to EFAULT. This error should be
>> handled here, otherwise this could lead to the following
>> code using an uninitialized opcode variable, which could
>> indirectly leak a few bits of kernel stack information
>> to userspace (security concern). One attack vector I have
>> in mind for this is ptrace(), which might be able to tweak
>> those register values.

Yes, generally get_user() can fail.
But this would be rather strange in that case, because
the syscall was started by userspace from this address.
So, without the code at that address in userspace, we would
never have reached this get_user().

And, there is no leak (of kernel stack) either. All this
function does is to move the content of userspace register X
to userspace register Y. There is no kernel info involved.    

>>> +
>>> +	/* Check if delay branch uses "ldi int,%r20" */
>>> +	if ((opcode & 0xffff0000) == 0x34140000)
>>> +		return;	/* everything ok, just return */
>>> +
>>> +	/* Check if delay branch uses "copy %rX,%r20" */
>>> +	if ((opcode & 0xff00ffff) == 0x08000254) {
>>> +		source_reg = (opcode >> 16) & 31;
>>
>> Can you explain the reasoning behind the & 31 mask ?
>> I'm no parisc expert, but this seems rather odd.
>> Do you really mean "% 31" which translates to "& 5" ?
>> It would make more sense since there are 32 "gr"
>> registers. With & 31, a carefully crafted opcode
>> could overflow the gr[32] array, and cause a kernel
>> overflow allowing to overwrite kernel memory
>> (security issue).
> 
> Hrm, I got my masks temporarily mixed up (early morning
> here). This is why I always use constructs such as:
> 
> #define GR_REGS_BITS  5
> #define NR_GR_REGS    (1U << GR_REGS_BITS)
> #define GR_REGS_MASK  (NR_GR_REGS - 1)
> 
> and then
> 
> v & GR_REGS_MASK;
> 
> Which makes everything super-obvious. The & 31 mask
> seems therefore technically correct.

Good. I was struggling with your comments as well :-)


> The paragraph below still holds though:
> 
>>
>> If it's the case, then it would also be good to
>> check that the register selector within the opcode
>> is not larger than 31 (e.g. applying to fr or sr
>> register), rather than applying the modulo and
>> assuming it's a gr and corrupt userspace state.

I'll check that.

Thanks!

Helge
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Subject: Re: [PATCH] parisc: Fix syscall restarts
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On Sun, 2015-12-20 at 16:49 +0100, Helge Deller wrote:
> On 20.12.2015 15:09, Mathieu Desnoyers wrote:
> > ----- On Dec 20, 2015, at 8:59 AM, Mathieu Desnoyers 
> > mathieu.desnoyers@efficios.com wrote:
> > 
> > > ----- On Dec 18, 2015, at 6:30 PM, Helge Deller deller@gmx.de wro
> > > te:
> > > 
> > > > On parisc syscalls which are interrupted by signals sometimes
> > > > fail to restart
> > > > and instead return -ENOSYS which then in the worst case lead to
> > > > userspace
> > > > crashes.
> > > > A similiar problem existed on MIPS and was fixed by commit
> > > > e967ef02
> > > > ("MIPS: Fix restart of indirect syscalls").
> > > > 
> > > > On parisc the current syscall restart code assumes hat the
> > > > syscall number is
> > > > always loaded in the delay branch of the ble instruction as
> > > > defined in the
> > > > unistd.h header file and as such never restored %r20 before
> > > > returning to
> > > > userspace:
> > > > 	ble 0x100(%sr2, %r0)
> > > > 	ldi #syscall_nr, %r20
> > > > 
> > > > This assumption is at least not true for code which uses the
> > > > syscall() glibc
> > > > function, which instead uses this syntax:
> > > > 	ble 0x100(%sr2, %r0)
> > > > 	copy regX, %r20
> > > > where regX depend on how the compiler optimizes the code and
> > > > register usage.
> > > > 
> > > > This patch fixes this problem by adding code to analyze how the
> > > > syscall number
> > > > is loaded in the delay branch and - if needed - copy the
> > > > syscall number to regX
> > > > prior returning to userspace for the syscall restart.
> > > > 
> > > > Signed-off-by: Helge Deller <deller@gmx.de>
> > > > Cc: stable@vger.kernel.org
> > > > Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> > > > 
> > > > diff --git a/arch/parisc/kernel/signal.c
> > > > b/arch/parisc/kernel/signal.c
> > > > index dc1ea79..b0414ad 100644
> > > > --- a/arch/parisc/kernel/signal.c
> > > > +++ b/arch/parisc/kernel/signal.c
> > > > @@ -435,6 +435,48 @@ handle_signal(struct ksignal *ksig, struct
> > > > pt_regs *regs,
> > > > int in_syscall)
> > > > 		regs->gr[28]);
> > > > }
> > > > 
> > > > +/*
> > > > + * Check the delay branch in userspace how the syscall number
> > > > gets loaded into
> > > > + * %r20 and adjust as needed.
> > > 
> > > I'm pretty sure "Check the delay branch in userspace how the
> > > syscall..."
> > > is not an English construct. ;-) Suggested rewording:
> > > 
> > > "Check how the syscall number gets loaded into %r20 within
> > > the delay branch in userspace and adjust as needed."
> 
> Thanks!
> I'll change that.
> 
> 
> > > > + */
> > > > +
> > > > +static void check_syscallno_in_delay_branch(struct pt_regs
> > > > *regs)
> > > > +{
> > > > +	unsigned int opcode, source_reg;
> > > 
> > > Why "unsigned int" above rather than u32 ? Since we're using
> > > opcode as target variable for a get_user, it would be clearer
> > > if the type of the __user * match the type of the target kernel
> > > variable. (understood that those happen to have the same bitness
> > > and type size on all Linux architectures, but it would be clearer
> > > nevertheless).
> 
> Yes, seems OK.
> I'll change that.
> 
> > > > +	u32 __user *uaddr;
> > > > +
> > > > +	/* Usually we don't have to restore %r20 (the system
> > > > call number)
> > > > +	 * because it gets loaded in the delay slot of the
> > > > branch external
> > > > +	 * instruction via the ldi instruction.
> > > > +	 * In some cases a register-to-register copy
> > > > instruction might have
> > > > +	 * been used instead, in which case we need to copy
> > > > the syscall
> > > > +	 * number into the source register before returning to
> > > > userspace.
> > > > +	 */
> > > > +
> > > > +	/* A syscall is just a branch, so all
> > > > +	 * we have to do is fiddle the return pointer.
> > > > +	 */
> > > > +	regs->gr[31] -= 8; /* delayed branching */
> > > > +
> > > > +	/* Get assembler opcode of code in delay branch */
> > > > +	uaddr = (unsigned int *) (regs->gr[31] + 1);
> > > > +	get_user(opcode, uaddr);
> > > 
> > > get_user() can fail due to EFAULT. This error should be
> > > handled here, otherwise this could lead to the following
> > > code using an uninitialized opcode variable, which could
> > > indirectly leak a few bits of kernel stack information
> > > to userspace (security concern). One attack vector I have
> > > in mind for this is ptrace(), which might be able to tweak
> > > those register values.
> 
> Yes, generally get_user() can fail.
> But this would be rather strange in that case, because
> the syscall was started by userspace from this address.
> So, without the code at that address in userspace, we would
> never have reached this get_user().

Actually, that's not necessarily a safe assumption.  Any memory
allocation in a syscall path (except GFP_ATOMIC) can trigger reclaim
and since this is a signal restart path, that's entirely possible. 
 Reclaim could pull the backing page out from under the syscall, so in
a low memory situation it is possible get_user() could fail with EFAULT
unless get_user_page() has been called somewhere to pin the page.

James

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Subject: Re: [PATCH] parisc: Fix syscall restarts
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On 2015-12-20, at 10:49 AM, Helge Deller wrote:

>>>> /* Check if delay branch uses "copy %rX,%r20" */
>>>> +	if ((opcode & 0xff00ffff) == 0x08000254) {
>>>> +		source_reg = (opcode >> 16) & 31;
>>> 
>>> Can you explain the reasoning behind the & 31 mask ?
>>> I'm no parisc expert, but this seems rather odd.
>>> Do you really mean "% 31" which translates to "& 5" ?
>>> It would make more sense since there are 32 "gr"
>>> registers. With & 31, a carefully crafted opcode
>>> could overflow the gr[32] array, and cause a kernel
>>> overflow allowing to overwrite kernel memory
>>> (security issue).
>> 
>> Hrm, I got my masks temporarily mixed up (early morning
>> here). This is why I always use constructs such as:
>> 
>> #define GR_REGS_BITS  5
>> #define NR_GR_REGS    (1U << GR_REGS_BITS)
>> #define GR_REGS_MASK  (NR_GR_REGS - 1)
>> 
>> and then
>> 
>> v & GR_REGS_MASK;
>> 
>> Which makes everything super-obvious. The & 31 mask
>> seems therefore technically correct.
> 
> Good. I was struggling with your comments as well :-)
> 
> 
>> The paragraph below still holds though:
>> 
>>> 
>>> If it's the case, then it would also be good to
>>> check that the register selector within the opcode
>>> is not larger than 31 (e.g. applying to fr or sr
>>> register), rather than applying the modulo and
>>> assuming it's a gr and corrupt userspace state.
> 
> I'll check that.

The register field cannot be larger than 31.  A fr or sr
regster can't be used in a LDO "copy" instruction.

Dave
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On 20.12.2015 19:31, John David Anglin wrote:
> On 2015-12-20, at 10:49 AM, Helge Deller wrote:
> 
>>>>> /* Check if delay branch uses "copy %rX,%r20" */
>>>>> +	if ((opcode & 0xff00ffff) == 0x08000254) {
>>>>> +		source_reg = (opcode >> 16) & 31;
>>>>
>>>> Can you explain the reasoning behind the & 31 mask ?
>>>> I'm no parisc expert, but this seems rather odd.
>>>> Do you really mean "% 31" which translates to "& 5" ?
>>>> It would make more sense since there are 32 "gr"
>>>> registers. With & 31, a carefully crafted opcode
>>>> could overflow the gr[32] array, and cause a kernel
>>>> overflow allowing to overwrite kernel memory
>>>> (security issue).
>>>
>>> Hrm, I got my masks temporarily mixed up (early morning
>>> here). This is why I always use constructs such as:
>>>
>>> #define GR_REGS_BITS  5
>>> #define NR_GR_REGS    (1U << GR_REGS_BITS)
>>> #define GR_REGS_MASK  (NR_GR_REGS - 1)
>>>
>>> and then
>>>
>>> v & GR_REGS_MASK;
>>>
>>> Which makes everything super-obvious. The & 31 mask
>>> seems therefore technically correct.
>>
>> Good. I was struggling with your comments as well :-)
>>
>>
>>> The paragraph below still holds though:
>>>
>>>>
>>>> If it's the case, then it would also be good to
>>>> check that the register selector within the opcode
>>>> is not larger than 31 (e.g. applying to fr or sr
>>>> register), rather than applying the modulo and
>>>> assuming it's a gr and corrupt userspace state.
>>
>> I'll check that.
> 
> The register field cannot be larger than 31.  A fr or sr
> regster can't be used 

Both correct.

> in a LDO "copy" instruction.

Actually it's the "OR,cond r1,r2,t" instruction.
https://parisc.wiki.kernel.org/images-parisc/6/68/Pa11_acd.pdf
page 5-105

if ((opcode & 0xff00ffff) == 0x08000254)

The mask should be 0xffe0ffff, so that some bits of r2 (which needs to be 0) are not missed.

Helge 

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On 2015-12-18, at 6:30 PM, Helge Deller wrote:

> +	/* Usually we don't have to restore %r20 (the system call number)
> +	 * because it gets loaded in the delay slot of the branch external
> +	 * instruction via the ldi instruction.
> +	 * In some cases a register-to-register copy instruction might have
> +	 * been used instead, in which case we need to copy the syscall
> +	 * number into the source register before returning to userspace.
> +	 */

I'm thinking it might be better to fix syscall() in glibc.  The copy could be
moved before ble and a nop placed delay slot.

Dave
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On 2015-12-20, at 2:32 PM, Helge Deller wrote:

>> in a LDO "copy" instruction.
> 
> Actually it's the "OR,cond r1,r2,t" instruction.
> https://parisc.wiki.kernel.org/images-parisc/6/68/Pa11_acd.pdf
> page 5-105
> 
> if ((opcode & 0xff00ffff) == 0x08000254)
> 
> The mask should be 0xffe0ffff, so that some bits of r2 (which needs to be 0) are not missed.

There are multiple instructions that could be used.  The PA 2.0 arch says LDO  on page 7-83.

I think we should fix syscall().  It's not used that much.

Dave
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On 20.12.2015 20:39, John David Anglin wrote:
> On 2015-12-18, at 6:30 PM, Helge Deller wrote:
> 
>> +	/* Usually we don't have to restore %r20 (the system call number)
>> +	 * because it gets loaded in the delay slot of the branch external
>> +	 * instruction via the ldi instruction.
>> +	 * In some cases a register-to-register copy instruction might have
>> +	 * been used instead, in which case we need to copy the syscall
>> +	 * number into the source register before returning to userspace.
>> +	 */
> 
> I'm thinking it might be better to fix syscall() in glibc.  The copy could be
> moved before ble and a nop placed delay slot.

Yes, I think it should be fixed in glibc which makes it cleaner.
I looked at dietlibc. There a "nop" is being used.

Nevertheless, it may happen anytime if people forget, that we will see a
"copy" there again, so IMHO it's probably safer to include the workaround in 
kernel too.

Helge
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On 2015-12-20, at 2:48 PM, Helge Deller wrote:

> On 20.12.2015 20:39, John David Anglin wrote:
>> On 2015-12-18, at 6:30 PM, Helge Deller wrote:
>> 
>>> +	/* Usually we don't have to restore %r20 (the system call number)
>>> +	 * because it gets loaded in the delay slot of the branch external
>>> +	 * instruction via the ldi instruction.
>>> +	 * In some cases a register-to-register copy instruction might have
>>> +	 * been used instead, in which case we need to copy the syscall
>>> +	 * number into the source register before returning to userspace.
>>> +	 */
>> 
>> I'm thinking it might be better to fix syscall() in glibc.  The copy could be
>> moved before ble and a nop placed delay slot.
> 
> Yes, I think it should be fixed in glibc which makes it cleaner.
> I looked at dietlibc. There a "nop" is being used.

A "nop" implies %r20 needs to be restored.

> 
> Nevertheless, it may happen anytime if people forget, that we will see a
> "copy" there again, so IMHO it's probably safer to include the workaround in 
> kernel too.


The current patch assumes regs->gr[source_reg] is restored.  That needs to be
checked given previous comment about %r20.

Essentially, all syscall clobbered registers need to be restored.

Can the user space stuff be avoided by jumping to the gateway entry point?

Dave
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On 20.12.2015 20:46, John David Anglin wrote:
> On 2015-12-20, at 2:32 PM, Helge Deller wrote:
> 
>>> in a LDO "copy" instruction.
>>
>> Actually it's the "OR,cond r1,r2,t" instruction.
>> https://parisc.wiki.kernel.org/images-parisc/6/68/Pa11_acd.pdf
>> page 5-105
>>
>> if ((opcode & 0xff00ffff) == 0x08000254)
>>
>> The mask should be 0xffe0ffff, so that some bits of r2 (which needs to be 0) are not missed.

This is actually not the full truth.
I missed the point, that "r2" is a register and not an immediate value.
My code just checks that "r2" means %r0, while it could be any other register as well,
which either has a null-value, or even worse, if someone decides to "calculate" the syscall number.

> There are multiple instructions that could be used.  The PA 2.0 arch says LDO  on page 7-83.

True.
But luckily it seems gas converts "copy" to the "or" syntax mentioned above.
In any case, keeping my kernel patch will report any cases (which might by mistake get added)
in the future so that we can fix userspace then (or enhance the kernel workaround).

Helge
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From - Thu Nov 08 21:38:11 2018
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On 2015-12-18, at 6:30 PM, Helge Deller wrote:

> +	/* Get assembler opcode of code in delay branch */
> +	uaddr = (unsigned int *) (regs->gr[31] + 1);

Shouldn't increment be 4?

Dave
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On 20.12.2015 21:01, John David Anglin wrote:
> On 2015-12-20, at 2:48 PM, Helge Deller wrote:
> 
>> On 20.12.2015 20:39, John David Anglin wrote:
>>> On 2015-12-18, at 6:30 PM, Helge Deller wrote:
>>>
>>>> +	/* Usually we don't have to restore %r20 (the system call number)
>>>> +	 * because it gets loaded in the delay slot of the branch external
>>>> +	 * instruction via the ldi instruction.
>>>> +	 * In some cases a register-to-register copy instruction might have
>>>> +	 * been used instead, in which case we need to copy the syscall
>>>> +	 * number into the source register before returning to userspace.
>>>> +	 */
>>>
>>> I'm thinking it might be better to fix syscall() in glibc.  The copy could be
>>> moved before ble and a nop placed delay slot.
>>
>> Yes, I think it should be fixed in glibc which makes it cleaner.
>> I looked at dietlibc. There a "nop" is being used.
> 
> A "nop" implies %r20 needs to be restored.

Yes, I tested that. It is being restored correctly, although the comments
imply different behaviour.

>> Nevertheless, it may happen anytime if people forget, that we will see a
>> "copy" there again, so IMHO it's probably safer to include the workaround in 
>> kernel too.
> 
> 
> The current patch assumes regs->gr[source_reg] is restored. 

Yes and no.

The real problem we actually faced is, that the glibc() syscall function
uses %r28 (aka the return value of the syscall) as "source_reg".
That's the reason why we failed with "ENOSYS" in the end, because when we returned
(before my patch) from the first syscall we returned -ERESTARTSYS
in %r28 (which is basically correct), but then the "copy %r28,%r20" in
userspace moved "-ERESTARTSYS" back into %r20, jumped into the kernel, and the
kernel (correctly) reported back "ENOSYS" since there is no such syscall
number with the value of "-ERESTARTSYS".
The problem: %r28 is of course not one of the registers which is being restored.
Quite complicated... I hope I could explain it somewhat...?

> That needs to be
> checked given previous comment about %r20.
> 
> Essentially, all syscall clobbered registers need to be restored.

Yes, they are (with the exception of the return value %r28).

> Can the user space stuff be avoided by jumping to the gateway entry point?

Probably.
I didn't looked into that.

Helge
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On 20.12.2015 21:14, John David Anglin wrote:
> On 2015-12-18, at 6:30 PM, Helge Deller wrote:
> 
>> +	/* Get assembler opcode of code in delay branch */
>> +	uaddr = (unsigned int *) (regs->gr[31] + 1);
> 
> Shouldn't increment be 4?

No.
The first address which is being executed in userspace is regs->gr[31]-3.

Helge


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On 20.12.2015 21:19, Helge Deller wrote:
> On 20.12.2015 21:14, John David Anglin wrote:
>> On 2015-12-18, at 6:30 PM, Helge Deller wrote:
>>
>>> +	/* Get assembler opcode of code in delay branch */
>>> +	uaddr = (unsigned int *) (regs->gr[31] + 1);
>>
>> Shouldn't increment be 4?
> 
> No.
> The first address which is being executed in userspace is regs->gr[31]-3.

I could (should?) have used
	uaddr = (unsigned int *) ((regs->gr[31] & ~3) + 4);

Helge
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On 20.12.2015 17:50, James Bottomley wrote:
> On Sun, 2015-12-20 at 16:49 +0100, Helge Deller wrote:
>> On 20.12.2015 15:09, Mathieu Desnoyers wrote:
>>> ----- On Dec 20, 2015, at 8:59 AM, Mathieu Desnoyers 
>>> mathieu.desnoyers@efficios.com wrote:
>>>
>>>> ----- On Dec 18, 2015, at 6:30 PM, Helge Deller deller@gmx.de wro
>>>> te:
>>>>
>>>>> On parisc syscalls which are interrupted by signals sometimes
>>>>> fail to restart
>>>>> and instead return -ENOSYS which then in the worst case lead to
>>>>> userspace
>>>>> crashes.
>>>>> A similiar problem existed on MIPS and was fixed by commit
>>>>> e967ef02
>>>>> ("MIPS: Fix restart of indirect syscalls").
>>>>>
>>>>> On parisc the current syscall restart code assumes hat the
>>>>> syscall number is
>>>>> always loaded in the delay branch of the ble instruction as
>>>>> defined in the
>>>>> unistd.h header file and as such never restored %r20 before
>>>>> returning to
>>>>> userspace:
>>>>> 	ble 0x100(%sr2, %r0)
>>>>> 	ldi #syscall_nr, %r20
>>>>>
>>>>> This assumption is at least not true for code which uses the
>>>>> syscall() glibc
>>>>> function, which instead uses this syntax:
>>>>> 	ble 0x100(%sr2, %r0)
>>>>> 	copy regX, %r20
>>>>> where regX depend on how the compiler optimizes the code and
>>>>> register usage.
>>>>>
>>>>> This patch fixes this problem by adding code to analyze how the
>>>>> syscall number
>>>>> is loaded in the delay branch and - if needed - copy the
>>>>> syscall number to regX
>>>>> prior returning to userspace for the syscall restart.
>>>>>
>>>>> Signed-off-by: Helge Deller <deller@gmx.de>
>>>>> Cc: stable@vger.kernel.org
>>>>> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
>>>>>
>>>>> diff --git a/arch/parisc/kernel/signal.c
>>>>> b/arch/parisc/kernel/signal.c
>>>>> index dc1ea79..b0414ad 100644
>>>>> --- a/arch/parisc/kernel/signal.c
>>>>> +++ b/arch/parisc/kernel/signal.c
>>>>> @@ -435,6 +435,48 @@ handle_signal(struct ksignal *ksig, struct
>>>>> pt_regs *regs,
>>>>> int in_syscall)
>>>>> 		regs->gr[28]);
>>>>> }
>>>>>
>>>>> +/*
>>>>> + * Check the delay branch in userspace how the syscall number
>>>>> gets loaded into
>>>>> + * %r20 and adjust as needed.
>>>>
>>>> I'm pretty sure "Check the delay branch in userspace how the
>>>> syscall..."
>>>> is not an English construct. ;-) Suggested rewording:
>>>>
>>>> "Check how the syscall number gets loaded into %r20 within
>>>> the delay branch in userspace and adjust as needed."
>>
>> Thanks!
>> I'll change that.
>>
>>
>>>>> + */
>>>>> +
>>>>> +static void check_syscallno_in_delay_branch(struct pt_regs
>>>>> *regs)
>>>>> +{
>>>>> +	unsigned int opcode, source_reg;
>>>>
>>>> Why "unsigned int" above rather than u32 ? Since we're using
>>>> opcode as target variable for a get_user, it would be clearer
>>>> if the type of the __user * match the type of the target kernel
>>>> variable. (understood that those happen to have the same bitness
>>>> and type size on all Linux architectures, but it would be clearer
>>>> nevertheless).
>>
>> Yes, seems OK.
>> I'll change that.
>>
>>>>> +	u32 __user *uaddr;
>>>>> +
>>>>> +	/* Usually we don't have to restore %r20 (the system
>>>>> call number)
>>>>> +	 * because it gets loaded in the delay slot of the
>>>>> branch external
>>>>> +	 * instruction via the ldi instruction.
>>>>> +	 * In some cases a register-to-register copy
>>>>> instruction might have
>>>>> +	 * been used instead, in which case we need to copy
>>>>> the syscall
>>>>> +	 * number into the source register before returning to
>>>>> userspace.
>>>>> +	 */
>>>>> +
>>>>> +	/* A syscall is just a branch, so all
>>>>> +	 * we have to do is fiddle the return pointer.
>>>>> +	 */
>>>>> +	regs->gr[31] -= 8; /* delayed branching */
>>>>> +
>>>>> +	/* Get assembler opcode of code in delay branch */
>>>>> +	uaddr = (unsigned int *) (regs->gr[31] + 1);
>>>>> +	get_user(opcode, uaddr);
>>>>
>>>> get_user() can fail due to EFAULT. This error should be
>>>> handled here, otherwise this could lead to the following
>>>> code using an uninitialized opcode variable, which could
>>>> indirectly leak a few bits of kernel stack information
>>>> to userspace (security concern). One attack vector I have
>>>> in mind for this is ptrace(), which might be able to tweak
>>>> those register values.
>>
>> Yes, generally get_user() can fail.
>> But this would be rather strange in that case, because
>> the syscall was started by userspace from this address.
>> So, without the code at that address in userspace, we would
>> never have reached this get_user().
> 
> Actually, that's not necessarily a safe assumption.  Any memory
> allocation in a syscall path (except GFP_ATOMIC) can trigger reclaim
> and since this is a signal restart path, that's entirely possible. 
>  Reclaim could pull the backing page out from under the syscall, so in
> a low memory situation it is possible get_user() could fail with EFAULT

Really?
Maybe I misunderstood...?
So, let's say we have low memory and the kernel "swapped" out the userspace.
I assume that when there is no memory pressure get_user() would
pull the page in again, and if it's memory pressure, then with the assumption 
there is no memory left it probably return EFAULT (is that true?).
But what happens then when we return to userspace? 
I expect userspace then to segfault.

I will add the check for EFAULT, but just trying to understand...

> unless get_user_page() has been called somewhere to pin the page.

Helge
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On 2015-12-20, at 3:18 PM, Helge Deller wrote:

>>> Nevertheless, it may happen anytime if people forget, that we will see a
>>> "copy" there again, so IMHO it's probably safer to include the workaround in 
>>> kernel too.
>> 
>> 
>> The current patch assumes regs->gr[source_reg] is restored. 
> 
> Yes and no.
> 
> The real problem we actually faced is, that the glibc() syscall function
> uses %r28 (aka the return value of the syscall) as "source_reg".
> That's the reason why we failed with "ENOSYS" in the end, because when we returned
> (before my patch) from the first syscall we returned -ERESTARTSYS
> in %r28 (which is basically correct), but then the "copy %r28,%r20" in
> userspace moved "-ERESTARTSYS" back into %r20, jumped into the kernel, and the
> kernel (correctly) reported back "ENOSYS" since there is no such syscall
> number with the value of "-ERESTARTSYS".
> The problem: %r28 is of course not one of the registers which is being restored.
> Quite complicated... I hope I could explain it somewhat...?

So, the patch doesn't work and we need to fix glibc.  The only other solution is to load
%r20 into %r28 and restore %r28 on a syscall restart.

Dave
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On 2015-12-20, at 3:21 PM, Helge Deller wrote:

> On 20.12.2015 21:19, Helge Deller wrote:
>> On 20.12.2015 21:14, John David Anglin wrote:
>>> On 2015-12-18, at 6:30 PM, Helge Deller wrote:
>>> 
>>>> +	/* Get assembler opcode of code in delay branch */
>>>> +	uaddr = (unsigned int *) (regs->gr[31] + 1);
>>> 
>>> Shouldn't increment be 4?
>> 
>> No.
>> The first address which is being executed in userspace is regs->gr[31]-3.
> 
> I could (should?) have used
> 	uaddr = (unsigned int *) ((regs->gr[31] & ~3) + 4);


Possibly that is better.  The former assumes user space is at level 3.

Dave
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On 2015-12-20, at 2:46 PM, John David Anglin wrote:

> I think we should fix syscall().  It's not used that much.

Attached is glibc fix.  Testing.

Dave
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diff --git a/sysdeps/unix/sysv/linux/hppa/syscall.c =
b/sysdeps/unix/sysv/linux/hppa/syscall.c
index 958fa47..9c7ee4f 100644
--- a/sysdeps/unix/sysv/linux/hppa/syscall.c
+++ b/sysdeps/unix/sysv/linux/hppa/syscall.c
@@ -48,8 +48,9 @@ syscall (long int __sysno, ...)
     PIC_REG_DEF
     LOAD_REGS_6
     asm volatile (SAVE_ASM_PIC
-		  "	ble  0x100(%%sr2, %%r0)	\n"
 		  "	copy %1, %%r20		\n"
+		  "	ble  0x100(%%sr2, %%r0)	\n"
+		  "	nop			\n"
 		  LOAD_ASM_PIC
 		  : "=3Dr" (__res)
 		  : "r" (__sysno) PIC_REG_USE ASM_ARGS_6
diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep.h =
b/sysdeps/unix/sysv/linux/hppa/sysdep.h
index 2cae70f..cc16c1a 100644
--- a/sysdeps/unix/sysv/linux/hppa/sysdep.h
+++ b/sysdeps/unix/sysv/linux/hppa/sysdep.h
@@ -434,8 +434,9 @@ L(pre_end):					=
ASM_LINE_SEP	\
 		/* FIXME: HACK save/load r19 around syscall */		=
\
 		asm volatile(						=
\
 			SAVE_ASM_PIC					=
\
-			"	ble  0x100(%%sr2, %%r0)\n"		=
\
 			"	copy %1, %%r20\n"			=
\
+			"	ble  0x100(%%sr2, %%r0)\n"		=
\
+			"	nop\n"					=
\
 			LOAD_ASM_PIC					=
\
 			: "=3Dr" (__res)					=
\
 			: "r" (name) PIC_REG_USE ASM_ARGS_##nr		=
\

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On Sun, 2015-12-20 at 21:35 +0100, Helge Deller wrote:
> On 20.12.2015 17:50, James Bottomley wrote:
> > On Sun, 2015-12-20 at 16:49 +0100, Helge Deller wrote:
> > > On 20.12.2015 15:09, Mathieu Desnoyers wrote:
> > > > ----- On Dec 20, 2015, at 8:59 AM, Mathieu Desnoyers 
> > > > mathieu.desnoyers@efficios.com wrote:
> > > > 
> > > > > ----- On Dec 18, 2015, at 6:30 PM, Helge Deller deller@gmx.de
> > > > >  wro
> > > > > te:
> > > > > 
> > > > > > On parisc syscalls which are interrupted by signals
> > > > > > sometimes
> > > > > > fail to restart
> > > > > > and instead return -ENOSYS which then in the worst case
> > > > > > lead to
> > > > > > userspace
> > > > > > crashes.
> > > > > > A similiar problem existed on MIPS and was fixed by commit
> > > > > > e967ef02
> > > > > > ("MIPS: Fix restart of indirect syscalls").
> > > > > > 
> > > > > > On parisc the current syscall restart code assumes hat the
> > > > > > syscall number is
> > > > > > always loaded in the delay branch of the ble instruction as
> > > > > > defined in the
> > > > > > unistd.h header file and as such never restored %r20 before
> > > > > > returning to
> > > > > > userspace:
> > > > > > 	ble 0x100(%sr2, %r0)
> > > > > > 	ldi #syscall_nr, %r20
> > > > > > 
> > > > > > This assumption is at least not true for code which uses
> > > > > > the
> > > > > > syscall() glibc
> > > > > > function, which instead uses this syntax:
> > > > > > 	ble 0x100(%sr2, %r0)
> > > > > > 	copy regX, %r20
> > > > > > where regX depend on how the compiler optimizes the code
> > > > > > and
> > > > > > register usage.
> > > > > > 
> > > > > > This patch fixes this problem by adding code to analyze how
> > > > > > the
> > > > > > syscall number
> > > > > > is loaded in the delay branch and - if needed - copy the
> > > > > > syscall number to regX
> > > > > > prior returning to userspace for the syscall restart.
> > > > > > 
> > > > > > Signed-off-by: Helge Deller <deller@gmx.de>
> > > > > > Cc: stable@vger.kernel.org
> > > > > > Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> > > > > > 
> > > > > > diff --git a/arch/parisc/kernel/signal.c
> > > > > > b/arch/parisc/kernel/signal.c
> > > > > > index dc1ea79..b0414ad 100644
> > > > > > --- a/arch/parisc/kernel/signal.c
> > > > > > +++ b/arch/parisc/kernel/signal.c
> > > > > > @@ -435,6 +435,48 @@ handle_signal(struct ksignal *ksig,
> > > > > > struct
> > > > > > pt_regs *regs,
> > > > > > int in_syscall)
> > > > > > 		regs->gr[28]);
> > > > > > }
> > > > > > 
> > > > > > +/*
> > > > > > + * Check the delay branch in userspace how the syscall
> > > > > > number
> > > > > > gets loaded into
> > > > > > + * %r20 and adjust as needed.
> > > > > 
> > > > > I'm pretty sure "Check the delay branch in userspace how the
> > > > > syscall..."
> > > > > is not an English construct. ;-) Suggested rewording:
> > > > > 
> > > > > "Check how the syscall number gets loaded into %r20 within
> > > > > the delay branch in userspace and adjust as needed."
> > > 
> > > Thanks!
> > > I'll change that.
> > > 
> > > 
> > > > > > + */
> > > > > > +
> > > > > > +static void check_syscallno_in_delay_branch(struct pt_regs
> > > > > > *regs)
> > > > > > +{
> > > > > > +	unsigned int opcode, source_reg;
> > > > > 
> > > > > Why "unsigned int" above rather than u32 ? Since we're using
> > > > > opcode as target variable for a get_user, it would be clearer
> > > > > if the type of the __user * match the type of the target
> > > > > kernel
> > > > > variable. (understood that those happen to have the same
> > > > > bitness
> > > > > and type size on all Linux architectures, but it would be
> > > > > clearer
> > > > > nevertheless).
> > > 
> > > Yes, seems OK.
> > > I'll change that.
> > > 
> > > > > > +	u32 __user *uaddr;
> > > > > > +
> > > > > > +	/* Usually we don't have to restore %r20 (the
> > > > > > system
> > > > > > call number)
> > > > > > +	 * because it gets loaded in the delay slot of the
> > > > > > branch external
> > > > > > +	 * instruction via the ldi instruction.
> > > > > > +	 * In some cases a register-to-register copy
> > > > > > instruction might have
> > > > > > +	 * been used instead, in which case we need to
> > > > > > copy
> > > > > > the syscall
> > > > > > +	 * number into the source register before
> > > > > > returning to
> > > > > > userspace.
> > > > > > +	 */
> > > > > > +
> > > > > > +	/* A syscall is just a branch, so all
> > > > > > +	 * we have to do is fiddle the return pointer.
> > > > > > +	 */
> > > > > > +	regs->gr[31] -= 8; /* delayed branching */
> > > > > > +
> > > > > > +	/* Get assembler opcode of code in delay branch */
> > > > > > +	uaddr = (unsigned int *) (regs->gr[31] + 1);
> > > > > > +	get_user(opcode, uaddr);
> > > > > 
> > > > > get_user() can fail due to EFAULT. This error should be
> > > > > handled here, otherwise this could lead to the following
> > > > > code using an uninitialized opcode variable, which could
> > > > > indirectly leak a few bits of kernel stack information
> > > > > to userspace (security concern). One attack vector I have
> > > > > in mind for this is ptrace(), which might be able to tweak
> > > > > those register values.
> > > 
> > > Yes, generally get_user() can fail.
> > > But this would be rather strange in that case, because
> > > the syscall was started by userspace from this address.
> > > So, without the code at that address in userspace, we would
> > > never have reached this get_user().
> > 
> > Actually, that's not necessarily a safe assumption.  Any memory
> > allocation in a syscall path (except GFP_ATOMIC) can trigger
> > reclaim
> > and since this is a signal restart path, that's entirely possible. 
> >  Reclaim could pull the backing page out from under the syscall, so
> > in
> > a low memory situation it is possible get_user() could fail with
> > EFAULT
> 
> Really?
> Maybe I misunderstood...?
> So, let's say we have low memory and the kernel "swapped" out the
> userspace.
> I assume that when there is no memory pressure get_user() would
> pull the page in again, and if it's memory pressure, then with the
> assumption 
> there is no memory left it probably return EFAULT (is that true?).
> But what happens then when we return to userspace? 
> I expect userspace then to segfault.
> 
> I will add the check for EFAULT, but just trying to understand...

Actually, you're right, I was misremembering why these functions return
EFAULT.  It's if the access is invalid.  They will actually try to page
back in via the fault handler if the backing has gone.

James

> > unless get_user_page() has been called somewhere to pin the page.
> 
> Helge
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From - Thu Nov 08 21:38:12 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: Fix syscall restarts (v2)
Date: Mon, 21 Dec 2015 10:19:33 +0100
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This is version 2 of the patch:

On parisc syscalls which are interrupted by signals sometimes failed to
restart and instead returned -ENOSYS which in the worst case lead to
userspace crashes.
A similiar problem existed on MIPS and was fixed by commit e967ef02
("MIPS: Fix restart of indirect syscalls").

On parisc the current syscall restart code assumes that all syscall
callers load the syscall number in the delay slot of the ble
instruction. That's how it is e.g. done in the unistd.h header file:
	ble 0x100(%sr2, %r0)
	ldi #syscall_nr, %r20
Because of that assumption the current code never restored %r20 before
returning to userspace.

This assumption is at least not true for code which uses the glibc
syscall() function, which instead uses this syntax:
	ble 0x100(%sr2, %r0)
	copy regX, %r20
where regX depend on how the compiler optimizes the code and register
usage.

This patch fixes this problem by adding code to analyze how the syscall
number is loaded in the delay branch and - if needed - copy the syscall
number to regX prior returning to userspace for the syscall restart.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index dc1ea79..2264f68 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -435,6 +435,55 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs, int in_syscall)
 		regs->gr[28]);
 }
 
+/*
+ * Check how the syscall number gets loaded into %r20 within
+ * the delay branch in userspace and adjust as needed.
+ */
+
+static void check_syscallno_in_delay_branch(struct pt_regs *regs)
+{
+	u32 opcode, source_reg;
+	u32 __user *uaddr;
+	int err;
+
+	/* Usually we don't have to restore %r20 (the system call number)
+	 * because it gets loaded in the delay slot of the branch external
+	 * instruction via the ldi instruction.
+	 * In some cases a register-to-register copy instruction might have
+	 * been used instead, in which case we need to copy the syscall
+	 * number into the source register before returning to userspace.
+	 */
+
+	/* A syscall is just a branch, so all we have to do is fiddle the
+	 * return pointer so that the ble instruction gets executed again.
+	 */
+	regs->gr[31] -= 8; /* delayed branching */
+
+	/* Get assembler opcode of code in delay branch */
+	uaddr = (unsigned int *) ((regs->gr[31] & ~3) + 4);
+	err = get_user(opcode, uaddr);
+	if (err)
+		return;
+
+	/* Check if delay branch uses "ldi int,%r20" */
+	if ((opcode & 0xffff0000) == 0x34140000)
+		return;	/* everything ok, just return */
+
+	/* Check if delay branch uses "nop" */
+	if (opcode == INSN_NOP)
+		return;
+
+	/* Check if delay branch uses "copy %rX,%r20" */
+	if ((opcode & 0xffe0ffff) == 0x08000254) {
+		source_reg = (opcode >> 16) & 31;
+		regs->gr[source_reg] = regs->gr[20];
+		return;
+	}
+
+	pr_warn("syscall restart: %s (pid %d): unexpected opcode 0x%08x\n",
+		current->comm, task_pid_nr(current), opcode);
+}
+
 static inline void
 syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
 {
@@ -457,10 +506,7 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
 		}
 		/* fallthrough */
 	case -ERESTARTNOINTR:
-		/* A syscall is just a branch, so all
-		 * we have to do is fiddle the return pointer.
-		 */
-		regs->gr[31] -= 8; /* delayed branching */
+		check_syscallno_in_delay_branch(regs);
 		break;
 	}
 }
@@ -510,15 +556,9 @@ insert_restart_trampoline(struct pt_regs *regs)
 	}
 	case -ERESTARTNOHAND:
 	case -ERESTARTSYS:
-	case -ERESTARTNOINTR: {
-		/* Hooray for delayed branching.  We don't
-		 * have to restore %r20 (the system call
-		 * number) because it gets loaded in the delay
-		 * slot of the branch external instruction.
-		 */
-		regs->gr[31] -= 8;
+	case -ERESTARTNOINTR:
+		check_syscallno_in_delay_branch(regs);
 		return;
-	}
 	default:
 		break;
 	}
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Subject: Re: [PATCH] parisc: Fix syscall restarts (v2)
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On 2015-12-21, at 4:19 AM, Helge Deller wrote:

> On parisc the current syscall restart code assumes that all syscall
> callers load the syscall number in the delay slot of the ble
> instruction. That's how it is e.g. done in the unistd.h header file:
> 	ble 0x100(%sr2, %r0)
> 	ldi #syscall_nr, %r20
> Because of that assumption the current code never restored %r20 before
> returning to userspace.

Is %r20 restored for nop case?  The comments in the patch suggest that it is
not necessary to restore it.

I'm  thinking we need to review syscall clobbered register list for glibc.

Dave
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----- On Dec 21, 2015, at 3:03 AM, James Bottomley James.Bottomley@HansenPartnership.com wrote:

> On Sun, 2015-12-20 at 21:35 +0100, Helge Deller wrote:
>> On 20.12.2015 17:50, James Bottomley wrote:
>> > On Sun, 2015-12-20 at 16:49 +0100, Helge Deller wrote:
>> > > On 20.12.2015 15:09, Mathieu Desnoyers wrote:
>> > > > ----- On Dec 20, 2015, at 8:59 AM, Mathieu Desnoyers
>> > > > mathieu.desnoyers@efficios.com wrote:
>> > > > 
>> > > > > ----- On Dec 18, 2015, at 6:30 PM, Helge Deller deller@gmx.de
>> > > > >  wro
>> > > > > te:
>> > > > > 
>> > > > > > On parisc syscalls which are interrupted by signals
>> > > > > > sometimes
>> > > > > > fail to restart
>> > > > > > and instead return -ENOSYS which then in the worst case
>> > > > > > lead to
>> > > > > > userspace
>> > > > > > crashes.
>> > > > > > A similiar problem existed on MIPS and was fixed by commit
>> > > > > > e967ef02
>> > > > > > ("MIPS: Fix restart of indirect syscalls").
>> > > > > > 
>> > > > > > On parisc the current syscall restart code assumes hat the
>> > > > > > syscall number is
>> > > > > > always loaded in the delay branch of the ble instruction as
>> > > > > > defined in the
>> > > > > > unistd.h header file and as such never restored %r20 before
>> > > > > > returning to
>> > > > > > userspace:
>> > > > > > 	ble 0x100(%sr2, %r0)
>> > > > > > 	ldi #syscall_nr, %r20
>> > > > > > 
>> > > > > > This assumption is at least not true for code which uses
>> > > > > > the
>> > > > > > syscall() glibc
>> > > > > > function, which instead uses this syntax:
>> > > > > > 	ble 0x100(%sr2, %r0)
>> > > > > > 	copy regX, %r20
>> > > > > > where regX depend on how the compiler optimizes the code
>> > > > > > and
>> > > > > > register usage.
>> > > > > > 
>> > > > > > This patch fixes this problem by adding code to analyze how
>> > > > > > the
>> > > > > > syscall number
>> > > > > > is loaded in the delay branch and - if needed - copy the
>> > > > > > syscall number to regX
>> > > > > > prior returning to userspace for the syscall restart.
>> > > > > > 
>> > > > > > Signed-off-by: Helge Deller <deller@gmx.de>
>> > > > > > Cc: stable@vger.kernel.org
>> > > > > > Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
>> > > > > > 
>> > > > > > diff --git a/arch/parisc/kernel/signal.c
>> > > > > > b/arch/parisc/kernel/signal.c
>> > > > > > index dc1ea79..b0414ad 100644
>> > > > > > --- a/arch/parisc/kernel/signal.c
>> > > > > > +++ b/arch/parisc/kernel/signal.c
>> > > > > > @@ -435,6 +435,48 @@ handle_signal(struct ksignal *ksig,
>> > > > > > struct
>> > > > > > pt_regs *regs,
>> > > > > > int in_syscall)
>> > > > > > 		regs->gr[28]);
>> > > > > > }
>> > > > > > 
>> > > > > > +/*
>> > > > > > + * Check the delay branch in userspace how the syscall
>> > > > > > number
>> > > > > > gets loaded into
>> > > > > > + * %r20 and adjust as needed.
>> > > > > 
>> > > > > I'm pretty sure "Check the delay branch in userspace how the
>> > > > > syscall..."
>> > > > > is not an English construct. ;-) Suggested rewording:
>> > > > > 
>> > > > > "Check how the syscall number gets loaded into %r20 within
>> > > > > the delay branch in userspace and adjust as needed."
>> > > 
>> > > Thanks!
>> > > I'll change that.
>> > > 
>> > > 
>> > > > > > + */
>> > > > > > +
>> > > > > > +static void check_syscallno_in_delay_branch(struct pt_regs
>> > > > > > *regs)
>> > > > > > +{
>> > > > > > +	unsigned int opcode, source_reg;
>> > > > > 
>> > > > > Why "unsigned int" above rather than u32 ? Since we're using
>> > > > > opcode as target variable for a get_user, it would be clearer
>> > > > > if the type of the __user * match the type of the target
>> > > > > kernel
>> > > > > variable. (understood that those happen to have the same
>> > > > > bitness
>> > > > > and type size on all Linux architectures, but it would be
>> > > > > clearer
>> > > > > nevertheless).
>> > > 
>> > > Yes, seems OK.
>> > > I'll change that.
>> > > 
>> > > > > > +	u32 __user *uaddr;
>> > > > > > +
>> > > > > > +	/* Usually we don't have to restore %r20 (the
>> > > > > > system
>> > > > > > call number)
>> > > > > > +	 * because it gets loaded in the delay slot of the
>> > > > > > branch external
>> > > > > > +	 * instruction via the ldi instruction.
>> > > > > > +	 * In some cases a register-to-register copy
>> > > > > > instruction might have
>> > > > > > +	 * been used instead, in which case we need to
>> > > > > > copy
>> > > > > > the syscall
>> > > > > > +	 * number into the source register before
>> > > > > > returning to
>> > > > > > userspace.
>> > > > > > +	 */
>> > > > > > +
>> > > > > > +	/* A syscall is just a branch, so all
>> > > > > > +	 * we have to do is fiddle the return pointer.
>> > > > > > +	 */
>> > > > > > +	regs->gr[31] -= 8; /* delayed branching */
>> > > > > > +
>> > > > > > +	/* Get assembler opcode of code in delay branch */
>> > > > > > +	uaddr = (unsigned int *) (regs->gr[31] + 1);
>> > > > > > +	get_user(opcode, uaddr);
>> > > > > 
>> > > > > get_user() can fail due to EFAULT. This error should be
>> > > > > handled here, otherwise this could lead to the following
>> > > > > code using an uninitialized opcode variable, which could
>> > > > > indirectly leak a few bits of kernel stack information
>> > > > > to userspace (security concern). One attack vector I have
>> > > > > in mind for this is ptrace(), which might be able to tweak
>> > > > > those register values.
>> > > 
>> > > Yes, generally get_user() can fail.
>> > > But this would be rather strange in that case, because
>> > > the syscall was started by userspace from this address.
>> > > So, without the code at that address in userspace, we would
>> > > never have reached this get_user().
>> > 
>> > Actually, that's not necessarily a safe assumption.  Any memory
>> > allocation in a syscall path (except GFP_ATOMIC) can trigger
>> > reclaim
>> > and since this is a signal restart path, that's entirely possible.
>> >  Reclaim could pull the backing page out from under the syscall, so
>> > in
>> > a low memory situation it is possible get_user() could fail with
>> > EFAULT
>> 
>> Really?
>> Maybe I misunderstood...?
>> So, let's say we have low memory and the kernel "swapped" out the
>> userspace.
>> I assume that when there is no memory pressure get_user() would
>> pull the page in again, and if it's memory pressure, then with the
>> assumption
>> there is no memory left it probably return EFAULT (is that true?).
>> But what happens then when we return to userspace?
>> I expect userspace then to segfault.
>> 
>> I will add the check for EFAULT, but just trying to understand...
> 
> Actually, you're right, I was misremembering why these functions return
> EFAULT.  It's if the access is invalid.  They will actually try to page
> back in via the fault handler if the backing has gone.

I think you could still trigger the EFAULT by having a
concurrent thread running within the same process address
space invoking munmap on the memory range that
includes the get_user() target memory area.

This would clearly be a hostile user-space application,
but it's important to validate all user inputs very
carefully, especially for misbehaving applications.

Thanks,

Mathieu

> 
> James
> 
>> > unless get_user_page() has been called somewhere to pin the page.
>> 
>> Helge
>> --
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-- 
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----- On Dec 20, 2015, at 1:31 PM, John David Anglin dave.anglin@bell.net wrote:

> On 2015-12-20, at 10:49 AM, Helge Deller wrote:
> 
>>>>> /* Check if delay branch uses "copy %rX,%r20" */
>>>>> +	if ((opcode & 0xff00ffff) == 0x08000254) {
>>>>> +		source_reg = (opcode >> 16) & 31;
>>>> 
>>>> Can you explain the reasoning behind the & 31 mask ?
>>>> I'm no parisc expert, but this seems rather odd.
>>>> Do you really mean "% 31" which translates to "& 5" ?
>>>> It would make more sense since there are 32 "gr"
>>>> registers. With & 31, a carefully crafted opcode
>>>> could overflow the gr[32] array, and cause a kernel
>>>> overflow allowing to overwrite kernel memory
>>>> (security issue).
>>> 
>>> Hrm, I got my masks temporarily mixed up (early morning
>>> here). This is why I always use constructs such as:
>>> 
>>> #define GR_REGS_BITS  5
>>> #define NR_GR_REGS    (1U << GR_REGS_BITS)
>>> #define GR_REGS_MASK  (NR_GR_REGS - 1)
>>> 
>>> and then
>>> 
>>> v & GR_REGS_MASK;
>>> 
>>> Which makes everything super-obvious. The & 31 mask
>>> seems therefore technically correct.
>> 
>> Good. I was struggling with your comments as well :-)
>> 
>> 
>>> The paragraph below still holds though:
>>> 
>>>> 
>>>> If it's the case, then it would also be good to
>>>> check that the register selector within the opcode
>>>> is not larger than 31 (e.g. applying to fr or sr
>>>> register), rather than applying the modulo and
>>>> assuming it's a gr and corrupt userspace state.
>> 
>> I'll check that.
> 
> The register field cannot be larger than 31.  A fr or sr
> regster can't be used in a LDO "copy" instruction.

Independently of the instruction set, if an application
pulls the carpet from under the kernel from a concurrent
thread (or possibly ptrace) by forging an invalid
instruction after the system call has started executing,
it would be good to catch it and report it with a printk,
rather than blindly expecting that some bits should always
be 0.

Thanks,

Mathieu

> 
> Dave
> --
> John David Anglin	dave.anglin@bell.net

-- 
Mathieu Desnoyers
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On 2015-12-21 9:42 AM, Mathieu Desnoyers wrote:
> ----- On Dec 20, 2015, at 1:31 PM, John David Anglin dave.anglin@bell.net wrote:
>
>> On 2015-12-20, at 10:49 AM, Helge Deller wrote:
>>
>>>>>> /* Check if delay branch uses "copy %rX,%r20" */
>>>>>> +	if ((opcode & 0xff00ffff) == 0x08000254) {
>>>>>> +		source_reg = (opcode >> 16) & 31;
>>>>> Can you explain the reasoning behind the & 31 mask ?
>>>>> I'm no parisc expert, but this seems rather odd.
>>>>> Do you really mean "% 31" which translates to "& 5" ?
>>>>> It would make more sense since there are 32 "gr"
>>>>> registers. With & 31, a carefully crafted opcode
>>>>> could overflow the gr[32] array, and cause a kernel
>>>>> overflow allowing to overwrite kernel memory
>>>>> (security issue).
>>>> Hrm, I got my masks temporarily mixed up (early morning
>>>> here). This is why I always use constructs such as:
>>>>
>>>> #define GR_REGS_BITS  5
>>>> #define NR_GR_REGS    (1U << GR_REGS_BITS)
>>>> #define GR_REGS_MASK  (NR_GR_REGS - 1)
>>>>
>>>> and then
>>>>
>>>> v & GR_REGS_MASK;
>>>>
>>>> Which makes everything super-obvious. The & 31 mask
>>>> seems therefore technically correct.
>>> Good. I was struggling with your comments as well :-)
>>>
>>>
>>>> The paragraph below still holds though:
>>>>
>>>>> If it's the case, then it would also be good to
>>>>> check that the register selector within the opcode
>>>>> is not larger than 31 (e.g. applying to fr or sr
>>>>> register), rather than applying the modulo and
>>>>> assuming it's a gr and corrupt userspace state.
>>> I'll check that.
>> The register field cannot be larger than 31.  A fr or sr
>> regster can't be used in a LDO "copy" instruction.
> Independently of the instruction set, if an application
> pulls the carpet from under the kernel from a concurrent
> thread (or possibly ptrace) by forging an invalid
> instruction after the system call has started executing,
> it would be good to catch it and report it with a printk,
> rather than blindly expecting that some bits should always
> be 0.

The mask should be 0xffe0ffff.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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From: Mike Frysinger <vapier@gentoo.org>
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Subject: ptrace interface does not permit modification of syscall return
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i have a ptrace program that watches for specific syscalls and when
matched, will:
 - on entry change the syscall nr to -1 (so the kernel will skip it)
 - on exit change the return to -EPERM so the userspace sees a denial

i have this working on most arches (x86, x86_64, arm, alpha, ia64, etc...).
on parisc, the kernel (using 3.18.7 currently) appears to be wrong.  in my
tests, if i don't mess with the syscall nr, i can change the return value
fine (to EPERM or whatever).  but the syscall executed which i do not want.
if i change the syscall to -1, then i can't change the return value (so the
child sees ENOSYS), but the kernel still executes the original syscall.

i have a simple test case attached to show the issue.  the code does:
 - spawn a child with the parent tracing it
 - child will do:
  - dupe stderr to another fd
  - unlink a file named ".test.flag"
  - write a message through the new fd
  - close a magic # so the parent knows to start denying
    - should see EPERM but it sees ENOSYS
  - close the new fd
    - should see EPERM but it is closed!
  - write to the new fd
    - should work, but the fd is closed
  - call create on ".test.flag"
    - should see EPERM, but the file is created!
 - parent will do:
  - log the syscalls until child runs close(-12345)
  - the parent will then try to deny all close/creat calls
  - uses PTRACE_POKEUSER w/PT_GR20 to set syscall to -1
  - uses PTRACE_POKEUSER w/PT_GR28 to set return to -EPERM

you can run the test case by doing:
$ gcc test.c && ./a.out
-mike

--vz6iKb9bTbvQNgYh
Content-Type: text/x-c; charset=utf-8
Content-Disposition: attachment; filename="test.c"

#define _GNU_SOURCE

#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <sched.h>
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/ptrace.h>
#include <sys/syscall.h>
#include <sys/wait.h>
#include <asm/offset.h>
#include <asm/ptrace.h>

static pid_t trace_pid;

static long _do_ptrace(enum __ptrace_request request, const char *srequest, void *addr, void *data)
{
	long ret;
 try_again:
	errno = 0;
	ret = ptrace(request, trace_pid, addr, data);
	if (ret == -1) {
		/* Child hasn't gotten to the next marker yet ? */
		if (errno == ESRCH) {
			int status;
			if (waitpid(trace_pid, &status, 0) == -1) {
				/* nah, it's dead ... should we whine though ? */
				_exit(0);
			}
			sched_yield();
			goto try_again;
		} else if (errno == EIO || errno == EFAULT) {
			/* This comes up when the child itself tries to use a bad pointer.
			 * That's not something the sandbox should abort on. #560396
			 */
			return ret;
		} else if (!errno)
			if (request == PTRACE_PEEKDATA ||
			    request == PTRACE_PEEKTEXT ||
			    request == PTRACE_PEEKUSER)
				return ret;

		err(1, "do_ptrace: ptrace(%s, ..., %p, %p)", srequest, addr, data);
	}
	return ret;
}
#define do_ptrace(request, addr, data) _do_ptrace(request, #request, addr, data)

static long do_peekuser(long offset)
{
	return do_ptrace(PTRACE_PEEKUSER, (void *)offset, NULL);
}

static long do_pokeuser(long offset, long val)
{
	return do_ptrace(PTRACE_POKEUSER, (void *)offset, (void *)val);
}

static void trace_child_signal(int signo, siginfo_t *info, void *context)
{
#if 0
	warnx("got sig %s(%i): code:%s(%i) status:%s(%i)",
		strsignal(signo), signo,
		"---", info->si_code,
		strsignal(info->si_status), info->si_status);
#endif

	switch (info->si_code) {
		case CLD_DUMPED:
		case CLD_KILLED:
			_exit(128 + info->si_status);

		case CLD_EXITED:
			_exit(info->si_status);

		case CLD_TRAPPED:
			switch (info->si_status) {
				case SIGSTOP:
					kill(trace_pid, SIGCONT);
				case SIGTRAP:
				case SIGCONT:
					return;
			}

			/* For whatever signal the child caught, let's ignore it and
			 * continue on.  If it aborted, segfaulted, whatever, that's
			 * its problem, not ours, so don't whine about it.  We just
			 * have to be sure to bubble it back up.  #265072
			 */
			do_ptrace(PTRACE_CONT, NULL, (void *)(long)info->si_status);
			return;
	}

	errx(1, "unhandled signal case");
}

static const char *lookup_syscall(long nr)
{
	switch (nr) {
#define X(n) case SYS_##n: return #n;
	X(access)
	X(brk)
	X(close)
	X(creat)
	X(dup)
	X(fstat64)
	X(mmap)
	X(mprotect)
	X(munmap)
	X(open)
	X(read)
	X(uname)
	X(write)
#undef X
	}
	return "";
}

void child_main(void)
{
	char test_file[] = ".test.flag";
	char msg[] = "child: you should see two of these\n";
	int fd = dup(2);

	unlink(test_file);
	write(fd, msg, sizeof(msg));

	/* Marker for the parent to watch. */
	errno = 0;
	close(-12345);
	fprintf(stderr, "child: close marker (should be EPERM): %m\n");
	errno = 0;
	close(fd);
	fprintf(stderr, "child: real close (should be EPERM): %m\n");
	errno = 0;
	write(fd, msg, sizeof(msg));
	fprintf(stderr, "child: write (should be success): %m\n");
	errno = 0;
	creat(test_file, 0660);
	fprintf(stderr, "child: creat (should be EPERM): %m\n");
	errno = 0;
	access(test_file, F_OK);
	fprintf(stderr, "child: access (should be ENOENT): %m\n");

	unlink(test_file);
	exit(0);
}

static void parent_main(void)
{
	int status;
	long nr, arg1;

	/* Wait for the child to exec. */
	while (1) {
		do_ptrace(PTRACE_SYSCALL, NULL, NULL);
		waitpid(trace_pid, &status, 0);

		unsigned event = ((unsigned)status >> 16);
		if (event == PTRACE_EVENT_EXEC) {
			warnx("parent: hit exec!");
			break;
		} else
			warnx("parent: waiting for exec; status: %#x", status);
	}

	/* Main loop. */
	bool saw_close = false;
	bool before_syscall = false;
	bool fake_syscall_ret = false;
	while (1) {
		do_ptrace(PTRACE_SYSCALL, NULL, NULL);
		waitpid(trace_pid, &status, 0);

		nr = do_peekuser(PT_GR20);
		arg1 = do_peekuser(PT_GR26);
		if (before_syscall) {
			warnx("parent: NR:%3li %s", nr, lookup_syscall(nr));
			/* Once the child hits the marker, deny all close & creat calls */
			if (nr == __NR_close || nr == __NR_creat) {
				if (saw_close || arg1 == -12345) {
					saw_close = true;
					warnx("parent: setting NR to -1");
					do_pokeuser(PT_GR20, -1);
					fake_syscall_ret = true;
				}
			}
		} else if (fake_syscall_ret) {
			warnx("parent: forcing EPERM");
			do_pokeuser(PT_GR28, -EPERM);
			fake_syscall_ret = false;
		}

		before_syscall = !before_syscall;
	}
}

int main(int argc, char *argv[])
{
	struct sigaction sa, old_sa;

	/* Child will re-exec us so the ptrace is clean for the parent. */
	if (argc > 1)
		child_main();

	/* Set up signal handler to watch for child events. */
	sa.sa_flags = SA_RESTART | SA_SIGINFO;
	sa.sa_sigaction = trace_child_signal;
	sigaction(SIGCHLD, &sa, &old_sa);

	/* Fork a child and have the parent do some early ptrace init. */
	trace_pid = fork();
	if (trace_pid == -1) {
		err(1, "fork() failed");
	} else if (trace_pid) {
		warn("parent waiting for child (pid=%i) to signal", trace_pid);
		waitpid(trace_pid, NULL, 0);
		do_ptrace(PTRACE_SETOPTIONS, NULL,
			(void *)(PTRACE_O_TRACESYSGOOD | PTRACE_O_TRACEEXEC));
		parent_main();
		errx(1, "child should have quit, as should we");
	}

	/* Have the child set itself up for tracing before execing again. */
	warnx("child setting up ...");
	sigaction(SIGCHLD, &old_sa, NULL);
	do_ptrace(PTRACE_TRACEME, NULL, NULL);
	kill(getpid(), SIGSTOP);
	execl(argv[0], argv[0], "--child", NULL);

	return 0;
}

--vz6iKb9bTbvQNgYh--

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From - Thu Nov 08 21:38:12 2018
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From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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Subject: Re: [PATCH] parisc: Fix syscall restarts (v2)
Date: Mon, 21 Dec 2015 20:27:23 +0000 (UTC)
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Cc: linux-parisc <linux-parisc@vger.kernel.org>,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	John David Anglin <dave.anglin@bell.net>
To: Helge Deller <deller@gmx.de>
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----- On Dec 21, 2015, at 4:19 AM, Helge Deller deller@gmx.de wrote:

> This is version 2 of the patch:
> 
> On parisc syscalls which are interrupted by signals sometimes failed to
> restart and instead returned -ENOSYS which in the worst case lead to
> userspace crashes.
> A similiar problem existed on MIPS and was fixed by commit e967ef02
> ("MIPS: Fix restart of indirect syscalls").
> 
> On parisc the current syscall restart code assumes that all syscall
> callers load the syscall number in the delay slot of the ble
> instruction. That's how it is e.g. done in the unistd.h header file:
>	ble 0x100(%sr2, %r0)
>	ldi #syscall_nr, %r20
> Because of that assumption the current code never restored %r20 before
> returning to userspace.
> 
> This assumption is at least not true for code which uses the glibc
> syscall() function, which instead uses this syntax:
>	ble 0x100(%sr2, %r0)
>	copy regX, %r20
> where regX depend on how the compiler optimizes the code and register
> usage.
> 
> This patch fixes this problem by adding code to analyze how the syscall
> number is loaded in the delay branch and - if needed - copy the syscall
> number to regX prior returning to userspace for the syscall restart.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> Cc: stable@vger.kernel.org
> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> 
> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
> index dc1ea79..2264f68 100644
> --- a/arch/parisc/kernel/signal.c
> +++ b/arch/parisc/kernel/signal.c
> @@ -435,6 +435,55 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs,
> int in_syscall)
> 		regs->gr[28]);
> }
> 
> +/*
> + * Check how the syscall number gets loaded into %r20 within
> + * the delay branch in userspace and adjust as needed.
> + */
> +
> +static void check_syscallno_in_delay_branch(struct pt_regs *regs)
> +{
> +	u32 opcode, source_reg;
> +	u32 __user *uaddr;
> +	int err;
> +
> +	/* Usually we don't have to restore %r20 (the system call number)
> +	 * because it gets loaded in the delay slot of the branch external
> +	 * instruction via the ldi instruction.
> +	 * In some cases a register-to-register copy instruction might have
> +	 * been used instead, in which case we need to copy the syscall
> +	 * number into the source register before returning to userspace.
> +	 */
> +
> +	/* A syscall is just a branch, so all we have to do is fiddle the
> +	 * return pointer so that the ble instruction gets executed again.
> +	 */
> +	regs->gr[31] -= 8; /* delayed branching */
> +
> +	/* Get assembler opcode of code in delay branch */
> +	uaddr = (unsigned int *) ((regs->gr[31] & ~3) + 4);

Is it valid to have unaligned instructions ? Does the architecture
allow it, or it's a fumble and we should pr_warn ?

> +	err = get_user(opcode, uaddr);
> +	if (err)

Should we add a pr_warn here ?

> +		return;
> +
> +	/* Check if delay branch uses "ldi int,%r20" */
> +	if ((opcode & 0xffff0000) == 0x34140000)
> +		return;	/* everything ok, just return */
> +
> +	/* Check if delay branch uses "nop" */
> +	if (opcode == INSN_NOP)
> +		return;

When we find a NOP in the delay slot, how can we be sure %r20
still holds the syscall value when we re-play the branch
instruction ? Can it be overwritten during the syscall,
either from start of syscall to here, or from here to
return to userspace ?

> +
> +	/* Check if delay branch uses "copy %rX,%r20" */
> +	if ((opcode & 0xffe0ffff) == 0x08000254) {
> +		source_reg = (opcode >> 16) & 31;
> +		regs->gr[source_reg] = regs->gr[20];

Similar question here, how can we be sure regs->gr[20]
still has the system call number at this point (not
overwritten from start of syscall to here) ?

Thanks,

Mathieu

> +		return;
> +	}
> +
> +	pr_warn("syscall restart: %s (pid %d): unexpected opcode 0x%08x\n",
> +		current->comm, task_pid_nr(current), opcode);
> +}
> +
> static inline void
> syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
> {
> @@ -457,10 +506,7 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction
> *ka)
> 		}
> 		/* fallthrough */
> 	case -ERESTARTNOINTR:
> -		/* A syscall is just a branch, so all
> -		 * we have to do is fiddle the return pointer.
> -		 */
> -		regs->gr[31] -= 8; /* delayed branching */
> +		check_syscallno_in_delay_branch(regs);
> 		break;
> 	}
> }
> @@ -510,15 +556,9 @@ insert_restart_trampoline(struct pt_regs *regs)
> 	}
> 	case -ERESTARTNOHAND:
> 	case -ERESTARTSYS:
> -	case -ERESTARTNOINTR: {
> -		/* Hooray for delayed branching.  We don't
> -		 * have to restore %r20 (the system call
> -		 * number) because it gets loaded in the delay
> -		 * slot of the branch external instruction.
> -		 */
> -		regs->gr[31] -= 8;
> +	case -ERESTARTNOINTR:
> +		check_syscallno_in_delay_branch(regs);
> 		return;
> -	}
> 	default:
> 		break;
>  	}

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
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On 21.12.2015 21:27, Mathieu Desnoyers wrote:
> ----- On Dec 21, 2015, at 4:19 AM, Helge Deller deller@gmx.de wrote:
> 
>> This is version 2 of the patch:
>>
>> On parisc syscalls which are interrupted by signals sometimes failed to
>> restart and instead returned -ENOSYS which in the worst case lead to
>> userspace crashes.
>> A similiar problem existed on MIPS and was fixed by commit e967ef02
>> ("MIPS: Fix restart of indirect syscalls").
>>
>> On parisc the current syscall restart code assumes that all syscall
>> callers load the syscall number in the delay slot of the ble
>> instruction. That's how it is e.g. done in the unistd.h header file:
>> 	ble 0x100(%sr2, %r0)
>> 	ldi #syscall_nr, %r20
>> Because of that assumption the current code never restored %r20 before
>> returning to userspace.
>>
>> This assumption is at least not true for code which uses the glibc
>> syscall() function, which instead uses this syntax:
>> 	ble 0x100(%sr2, %r0)
>> 	copy regX, %r20
>> where regX depend on how the compiler optimizes the code and register
>> usage.
>>
>> This patch fixes this problem by adding code to analyze how the syscall
>> number is loaded in the delay branch and - if needed - copy the syscall
>> number to regX prior returning to userspace for the syscall restart.
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>> Cc: stable@vger.kernel.org
>> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
>>
>> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
>> index dc1ea79..2264f68 100644
>> --- a/arch/parisc/kernel/signal.c
>> +++ b/arch/parisc/kernel/signal.c
>> @@ -435,6 +435,55 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs,
>> int in_syscall)
>> 		regs->gr[28]);
>> }
>>
>> +/*
>> + * Check how the syscall number gets loaded into %r20 within
>> + * the delay branch in userspace and adjust as needed.
>> + */
>> +
>> +static void check_syscallno_in_delay_branch(struct pt_regs *regs)
>> +{
>> +	u32 opcode, source_reg;
>> +	u32 __user *uaddr;
>> +	int err;
>> +
>> +	/* Usually we don't have to restore %r20 (the system call number)
>> +	 * because it gets loaded in the delay slot of the branch external
>> +	 * instruction via the ldi instruction.
>> +	 * In some cases a register-to-register copy instruction might have
>> +	 * been used instead, in which case we need to copy the syscall
>> +	 * number into the source register before returning to userspace.
>> +	 */
>> +
>> +	/* A syscall is just a branch, so all we have to do is fiddle the
>> +	 * return pointer so that the ble instruction gets executed again.
>> +	 */
>> +	regs->gr[31] -= 8; /* delayed branching */
>> +
>> +	/* Get assembler opcode of code in delay branch */
>> +	uaddr = (unsigned int *) ((regs->gr[31] & ~3) + 4);
> 
> Is it valid to have unaligned instructions ? Does the architecture
> allow it, or it's a fumble and we should pr_warn ?

How can it be unaligned? It's about u32...
And, no, unaligned instructions are not allowed (I think that at least).
 
>> +	err = get_user(opcode, uaddr);
>> +	if (err)
> 
> Should we add a pr_warn here ?

No. There is no gain to have a warning here.
 
>> +		return;
>> +
>> +	/* Check if delay branch uses "ldi int,%r20" */
>> +	if ((opcode & 0xffff0000) == 0x34140000)
>> +		return;	/* everything ok, just return */
>> +
>> +	/* Check if delay branch uses "nop" */
>> +	if (opcode == INSN_NOP)
>> +		return;
> 
> When we find a NOP in the delay slot, how can we be sure %r20
> still holds the syscall value when we re-play the branch
> instruction ? 

I looked at the code and even tested it (with your testcase actually).

> Can it be overwritten during the syscall,
> either from start of syscall to here, or from here to
> return to userspace ?

No.
 
>> +
>> +	/* Check if delay branch uses "copy %rX,%r20" */
>> +	if ((opcode & 0xffe0ffff) == 0x08000254) {
>> +		source_reg = (opcode >> 16) & 31;
>> +		regs->gr[source_reg] = regs->gr[20];
> 
> Similar question here, how can we be sure regs->gr[20]
> still has the system call number at this point (not
> overwritten from start of syscall to here) ?

Those registers are saved at entry of syscall and
restored at exit (with exception of a few registers
e.g. like r28 which is the return value of the syscall). 

Helge
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Hi Mike,

On 21.12.2015 18:55, Mike Frysinger wrote:
> i have a ptrace program that watches for specific syscalls and when
> matched, will:
>  - on entry change the syscall nr to -1 (so the kernel will skip it)
>  - on exit change the return to -EPERM so the userspace sees a denial
> 
> i have this working on most arches (x86, x86_64, arm, alpha, ia64, etc...).
> on parisc, the kernel (using 3.18.7 currently) appears to be wrong.  in my
> tests, if i don't mess with the syscall nr, i can change the return value
> fine (to EPERM or whatever).  but the syscall executed which i do not want.
> if i change the syscall to -1, then i can't change the return value (so the
> child sees ENOSYS), but the kernel still executes the original syscall.
> 
> i have a simple test case attached to show the issue.  the code does:
>  - spawn a child with the parent tracing it
>  - child will do:
>   - dupe stderr to another fd
>   - unlink a file named ".test.flag"
>   - write a message through the new fd
>   - close a magic # so the parent knows to start denying
>     - should see EPERM but it sees ENOSYS
>   - close the new fd
>     - should see EPERM but it is closed!
>   - write to the new fd
>     - should work, but the fd is closed
>   - call create on ".test.flag"
>     - should see EPERM, but the file is created!
>  - parent will do:
>   - log the syscalls until child runs close(-12345)
>   - the parent will then try to deny all close/creat calls
>   - uses PTRACE_POKEUSER w/PT_GR20 to set syscall to -1
>   - uses PTRACE_POKEUSER w/PT_GR28 to set return to -EPERM
> 
> you can run the test case by doing:
> $ gcc test.c && ./a.out

I agree, something is fishy :-)

I did some tests with your testcase.
First problem I had was, that compiling failed since it didn't found the asm/offset.h header file.
Which one did you used? I know it usually should come with the kernel headers, but there it is asm-offsets.h.
If you used debian, which package did you installed?

Instead I used asm-offsets.h.
First problem: I had to install the 64bit header file. PT_GR20 in this one was much higher than it should be for 32bit userspace.

So, I used those defines (taken from the strace source package):
#define PT_GR20 (20*4)
#define PT_GR26 (26*4)
#define PT_GR28 (28*4)
#define PT_IAOQ0 (106*4)
#define PT_IAOQ1 (107*4)

With that I got those output:
root@c3000:~# ./a.out
a.out: parent waiting for child (pid=1344) to signal: Success
a.out: child setting up ...
a.out: parent: waiting for exec; status: 0x1a7f
a.out: parent: waiting for exec; status: 0x857f
a.out: parent: hit exec!
a.out: parent: NR: 45 brk
a.out: parent: NR: 59 uname
a.out: parent: NR: 33 access
a.out: parent: NR: 90 mmap
a.out: parent: NR: 33 access
a.out: parent: NR:  5 open
a.out: parent: NR:112 fstat64
a.out: parent: NR: 90 mmap
a.out: parent: NR:  6 close
a.out: parent: NR: 33 access
a.out: parent: NR:  5 open
a.out: parent: NR:  3 read
a.out: parent: NR:112 fstat64
a.out: parent: NR: 90 mmap
a.out: parent: NR: 90 mmap
a.out: parent: NR: 90 mmap
a.out: parent: NR:  6 close
a.out: parent: NR: 90 mmap
a.out: parent: NR:125 mprotect
a.out: parent: NR: 90 mmap
a.out: parent: NR:125 mprotect
a.out: parent: NR: 91 munmap
a.out: parent: NR: 41 dup
a.out: parent: NR: 10 
a.out: parent: NR:  4 write
child: you should see two of these
a.out: parent: NR:  6 close
a.out: parent: setting NR to -1
a.out: parent: forcing EPERM
child: close marker (should be EPERM): Function not implemented
a.out: parent: NR:  4 write
a.out: parent: NR:  6 close
a.out: parent: setting NR to -1
a.out: parent: forcing EPERM
child: real close (should be EPERM): Success
a.out: parent: NR:  4 write
a.out: parent: NR:  4 write
child: write (should be success): Bad file descriptor
a.out: parent: NR:  4 write
a.out: parent: NR:  8 creat
a.out: parent: setting NR to -1
a.out: parent: forcing EPERM
child: creat (should be EPERM): Success
a.out: parent: NR:  4 write
a.out: parent: NR: 33 access
child: access (should be ENOENT): Success
a.out: parent: NR:  4 write
a.out: parent: NR: 10 

Seems not like what it should be.
I need to look closer at it during the next few days.

Regarding on how to get correct 32bit PT_REG #defines/values even on 64bit kernel,
maybe the attached patch is a way to go.

Helge

--------------060507090003090802010103
Content-Type: text/x-diff;
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diff --git a/arch/parisc/include/uapi/asm/ptrace.h b/arch/parisc/include/uapi/asm/ptrace.h
index c4fa6c8..1f2f892 100644
--- a/arch/parisc/include/uapi/asm/ptrace.h
+++ b/arch/parisc/include/uapi/asm/ptrace.h
@@ -33,6 +33,26 @@ struct pt_regs {
 	unsigned long ipsw;	/* CR22 */
 };
 
+#if defined(__LP64__)
+struct compat_pt_regs {
+	unsigned int gr[32];	/* PSW is in gr[0] */
+	__u64 fr[32];
+	unsigned int sr[ 8];
+	unsigned int iasq[2];
+	unsigned int iaoq[2];
+	unsigned int cr27;
+	unsigned int pad0;     /* available for other uses */
+	unsigned int orig_r28;
+	unsigned int ksp;
+	unsigned int kpc;
+	unsigned int sar;	/* CR11 */
+	unsigned int iir;	/* CR19 */
+	unsigned int isr;	/* CR20 */
+	unsigned int ior;	/* CR21 */
+	unsigned int ipsw;	/* CR22 */
+};
+#endif
+
 /*
  * The numbers chosen here are somewhat arbitrary but absolutely MUST
  * not overlap with any of the number assigned in <linux/ptrace.h>.
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index d2f6257..e2a8030 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -240,6 +240,96 @@ int main(void)
 	DEFINE(PT_SIZE, sizeof(struct pt_regs));
 	/* PT_SZ_ALGN includes space for a stack frame. */
 	DEFINE(PT_SZ_ALGN, align_frame(sizeof(struct pt_regs), FRAME_ALIGN));
+#ifdef CONFIG_64BIT
+	COMMENT("for 32bit userspace:");
+	DEFINE(PT_32_PSW, offsetof(struct compat_pt_regs, gr[ 0]));
+	DEFINE(PT_32_GR1, offsetof(struct compat_pt_regs, gr[ 1]));
+	DEFINE(PT_32_GR2, offsetof(struct compat_pt_regs, gr[ 2]));
+	DEFINE(PT_32_GR3, offsetof(struct compat_pt_regs, gr[ 3]));
+	DEFINE(PT_32_GR4, offsetof(struct compat_pt_regs, gr[ 4]));
+	DEFINE(PT_32_GR5, offsetof(struct compat_pt_regs, gr[ 5]));
+	DEFINE(PT_32_GR6, offsetof(struct compat_pt_regs, gr[ 6]));
+	DEFINE(PT_32_GR7, offsetof(struct compat_pt_regs, gr[ 7]));
+	DEFINE(PT_32_GR8, offsetof(struct compat_pt_regs, gr[ 8]));
+	DEFINE(PT_32_GR9, offsetof(struct compat_pt_regs, gr[ 9]));
+	DEFINE(PT_32_GR10, offsetof(struct compat_pt_regs, gr[10]));
+	DEFINE(PT_32_GR11, offsetof(struct compat_pt_regs, gr[11]));
+	DEFINE(PT_32_GR12, offsetof(struct compat_pt_regs, gr[12]));
+	DEFINE(PT_32_GR13, offsetof(struct compat_pt_regs, gr[13]));
+	DEFINE(PT_32_GR14, offsetof(struct compat_pt_regs, gr[14]));
+	DEFINE(PT_32_GR15, offsetof(struct compat_pt_regs, gr[15]));
+	DEFINE(PT_32_GR16, offsetof(struct compat_pt_regs, gr[16]));
+	DEFINE(PT_32_GR17, offsetof(struct compat_pt_regs, gr[17]));
+	DEFINE(PT_32_GR18, offsetof(struct compat_pt_regs, gr[18]));
+	DEFINE(PT_32_GR19, offsetof(struct compat_pt_regs, gr[19]));
+	DEFINE(PT_32_GR20, offsetof(struct compat_pt_regs, gr[20]));
+	DEFINE(PT_32_GR21, offsetof(struct compat_pt_regs, gr[21]));
+	DEFINE(PT_32_GR22, offsetof(struct compat_pt_regs, gr[22]));
+	DEFINE(PT_32_GR23, offsetof(struct compat_pt_regs, gr[23]));
+	DEFINE(PT_32_GR24, offsetof(struct compat_pt_regs, gr[24]));
+	DEFINE(PT_32_GR25, offsetof(struct compat_pt_regs, gr[25]));
+	DEFINE(PT_32_GR26, offsetof(struct compat_pt_regs, gr[26]));
+	DEFINE(PT_32_GR27, offsetof(struct compat_pt_regs, gr[27]));
+	DEFINE(PT_32_GR28, offsetof(struct compat_pt_regs, gr[28]));
+	DEFINE(PT_32_GR29, offsetof(struct compat_pt_regs, gr[29]));
+	DEFINE(PT_32_GR30, offsetof(struct compat_pt_regs, gr[30]));
+	DEFINE(PT_32_GR31, offsetof(struct compat_pt_regs, gr[31]));
+	DEFINE(PT_32_FR0, offsetof(struct compat_pt_regs, fr[ 0]));
+	DEFINE(PT_32_FR1, offsetof(struct compat_pt_regs, fr[ 1]));
+	DEFINE(PT_32_FR2, offsetof(struct compat_pt_regs, fr[ 2]));
+	DEFINE(PT_32_FR3, offsetof(struct compat_pt_regs, fr[ 3]));
+	DEFINE(PT_32_FR4, offsetof(struct compat_pt_regs, fr[ 4]));
+	DEFINE(PT_32_FR5, offsetof(struct compat_pt_regs, fr[ 5]));
+	DEFINE(PT_32_FR6, offsetof(struct compat_pt_regs, fr[ 6]));
+	DEFINE(PT_32_FR7, offsetof(struct compat_pt_regs, fr[ 7]));
+	DEFINE(PT_32_FR8, offsetof(struct compat_pt_regs, fr[ 8]));
+	DEFINE(PT_32_FR9, offsetof(struct compat_pt_regs, fr[ 9]));
+	DEFINE(PT_32_FR10, offsetof(struct compat_pt_regs, fr[10]));
+	DEFINE(PT_32_FR11, offsetof(struct compat_pt_regs, fr[11]));
+	DEFINE(PT_32_FR12, offsetof(struct compat_pt_regs, fr[12]));
+	DEFINE(PT_32_FR13, offsetof(struct compat_pt_regs, fr[13]));
+	DEFINE(PT_32_FR14, offsetof(struct compat_pt_regs, fr[14]));
+	DEFINE(PT_32_FR15, offsetof(struct compat_pt_regs, fr[15]));
+	DEFINE(PT_32_FR16, offsetof(struct compat_pt_regs, fr[16]));
+	DEFINE(PT_32_FR17, offsetof(struct compat_pt_regs, fr[17]));
+	DEFINE(PT_32_FR18, offsetof(struct compat_pt_regs, fr[18]));
+	DEFINE(PT_32_FR19, offsetof(struct compat_pt_regs, fr[19]));
+	DEFINE(PT_32_FR20, offsetof(struct compat_pt_regs, fr[20]));
+	DEFINE(PT_32_FR21, offsetof(struct compat_pt_regs, fr[21]));
+	DEFINE(PT_32_FR22, offsetof(struct compat_pt_regs, fr[22]));
+	DEFINE(PT_32_FR23, offsetof(struct compat_pt_regs, fr[23]));
+	DEFINE(PT_32_FR24, offsetof(struct compat_pt_regs, fr[24]));
+	DEFINE(PT_32_FR25, offsetof(struct compat_pt_regs, fr[25]));
+	DEFINE(PT_32_FR26, offsetof(struct compat_pt_regs, fr[26]));
+	DEFINE(PT_32_FR27, offsetof(struct compat_pt_regs, fr[27]));
+	DEFINE(PT_32_FR28, offsetof(struct compat_pt_regs, fr[28]));
+	DEFINE(PT_32_FR29, offsetof(struct compat_pt_regs, fr[29]));
+	DEFINE(PT_32_FR30, offsetof(struct compat_pt_regs, fr[30]));
+	DEFINE(PT_32_FR31, offsetof(struct compat_pt_regs, fr[31]));
+	DEFINE(PT_32_SR0, offsetof(struct compat_pt_regs, sr[ 0]));
+	DEFINE(PT_32_SR1, offsetof(struct compat_pt_regs, sr[ 1]));
+	DEFINE(PT_32_SR2, offsetof(struct compat_pt_regs, sr[ 2]));
+	DEFINE(PT_32_SR3, offsetof(struct compat_pt_regs, sr[ 3]));
+	DEFINE(PT_32_SR4, offsetof(struct compat_pt_regs, sr[ 4]));
+	DEFINE(PT_32_SR5, offsetof(struct compat_pt_regs, sr[ 5]));
+	DEFINE(PT_32_SR6, offsetof(struct compat_pt_regs, sr[ 6]));
+	DEFINE(PT_32_SR7, offsetof(struct compat_pt_regs, sr[ 7]));
+	DEFINE(PT_32_IASQ0, offsetof(struct compat_pt_regs, iasq[0]));
+	DEFINE(PT_32_IASQ1, offsetof(struct compat_pt_regs, iasq[1]));
+	DEFINE(PT_32_IAOQ0, offsetof(struct compat_pt_regs, iaoq[0]));
+	DEFINE(PT_32_IAOQ1, offsetof(struct compat_pt_regs, iaoq[1]));
+	DEFINE(PT_32_CR27, offsetof(struct compat_pt_regs, cr27));
+	DEFINE(PT_32_ORIG_R28, offsetof(struct compat_pt_regs, orig_r28));
+	DEFINE(PT_32_KSP, offsetof(struct compat_pt_regs, ksp));
+	DEFINE(PT_32_KPC, offsetof(struct compat_pt_regs, kpc));
+	DEFINE(PT_32_SAR, offsetof(struct compat_pt_regs, sar));
+	DEFINE(PT_32_IIR, offsetof(struct compat_pt_regs, iir));
+	DEFINE(PT_32_ISR, offsetof(struct compat_pt_regs, isr));
+	DEFINE(PT_32_IOR, offsetof(struct compat_pt_regs, ior));
+	DEFINE(PT_32_SIZE, sizeof(struct compat_pt_regs));
+	/* PT_32_SZ_ALGN includes space for a stack frame. */
+	DEFINE(PT_32_SZ_ALGN, align_frame(sizeof(struct compat_pt_regs), FRAME_ALIGN));
+#endif
 	BLANK();
 	DEFINE(TI_TASK, offsetof(struct thread_info, task));
 	DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));

--------------060507090003090802010103--
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Subject: Re: [PATCH] parisc: Fix syscall restarts (v2)
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To: Helge Deller <deller@gmx.de>
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----- On Dec 21, 2015, at 3:54 PM, Helge Deller deller@gmx.de wrote:

> On 21.12.2015 21:27, Mathieu Desnoyers wrote:
>> ----- On Dec 21, 2015, at 4:19 AM, Helge Deller deller@gmx.de wrote:
>> 
>>> This is version 2 of the patch:
>>>
>>> On parisc syscalls which are interrupted by signals sometimes failed to
>>> restart and instead returned -ENOSYS which in the worst case lead to
>>> userspace crashes.
>>> A similiar problem existed on MIPS and was fixed by commit e967ef02
>>> ("MIPS: Fix restart of indirect syscalls").
>>>
>>> On parisc the current syscall restart code assumes that all syscall
>>> callers load the syscall number in the delay slot of the ble
>>> instruction. That's how it is e.g. done in the unistd.h header file:
>>> 	ble 0x100(%sr2, %r0)
>>> 	ldi #syscall_nr, %r20
>>> Because of that assumption the current code never restored %r20 before
>>> returning to userspace.
>>>
>>> This assumption is at least not true for code which uses the glibc
>>> syscall() function, which instead uses this syntax:
>>> 	ble 0x100(%sr2, %r0)
>>> 	copy regX, %r20
>>> where regX depend on how the compiler optimizes the code and register
>>> usage.
>>>
>>> This patch fixes this problem by adding code to analyze how the syscall
>>> number is loaded in the delay branch and - if needed - copy the syscall
>>> number to regX prior returning to userspace for the syscall restart.
>>>
>>> Signed-off-by: Helge Deller <deller@gmx.de>
>>> Cc: stable@vger.kernel.org
>>> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
>>>
>>> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
>>> index dc1ea79..2264f68 100644
>>> --- a/arch/parisc/kernel/signal.c
>>> +++ b/arch/parisc/kernel/signal.c
>>> @@ -435,6 +435,55 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs,
>>> int in_syscall)
>>> 		regs->gr[28]);
>>> }
>>>
>>> +/*
>>> + * Check how the syscall number gets loaded into %r20 within
>>> + * the delay branch in userspace and adjust as needed.
>>> + */
>>> +
>>> +static void check_syscallno_in_delay_branch(struct pt_regs *regs)
>>> +{
>>> +	u32 opcode, source_reg;
>>> +	u32 __user *uaddr;
>>> +	int err;
>>> +
>>> +	/* Usually we don't have to restore %r20 (the system call number)
>>> +	 * because it gets loaded in the delay slot of the branch external
>>> +	 * instruction via the ldi instruction.
>>> +	 * In some cases a register-to-register copy instruction might have
>>> +	 * been used instead, in which case we need to copy the syscall
>>> +	 * number into the source register before returning to userspace.
>>> +	 */
>>> +
>>> +	/* A syscall is just a branch, so all we have to do is fiddle the
>>> +	 * return pointer so that the ble instruction gets executed again.
>>> +	 */
>>> +	regs->gr[31] -= 8; /* delayed branching */
>>> +
>>> +	/* Get assembler opcode of code in delay branch */
>>> +	uaddr = (unsigned int *) ((regs->gr[31] & ~3) + 4);
>> 
>> Is it valid to have unaligned instructions ? Does the architecture
>> allow it, or it's a fumble and we should pr_warn ?
> 
> How can it be unaligned? It's about u32...

That would be an instruction that is volountarily offset
from 1, 2, 3 bytes from 4-bytes multiples by the application.
The only situation where I have seen this is in cases where
applications are trying to play games with the debugger or
disassembler and hide what they are doing: they can offset
the start of a function like this, and therefore all the
instructions within that function.

> And, no, unaligned instructions are not allowed (I think that at least).

Might be interesting to try it out though. I'm not saying it's
a valid use-case for an application, but it would be at least good
to known whether this is an input we can expect.

> 
>>> +	err = get_user(opcode, uaddr);
>>> +	if (err)
>> 
>> Should we add a pr_warn here ?
> 
> No. There is no gain to have a warning here.

Allright.

> 
>>> +		return;
>>> +
>>> +	/* Check if delay branch uses "ldi int,%r20" */
>>> +	if ((opcode & 0xffff0000) == 0x34140000)
>>> +		return;	/* everything ok, just return */
>>> +
>>> +	/* Check if delay branch uses "nop" */
>>> +	if (opcode == INSN_NOP)
>>> +		return;
>> 
>> When we find a NOP in the delay slot, how can we be sure %r20
>> still holds the syscall value when we re-play the branch
>> instruction ?
> 
> I looked at the code and even tested it (with your testcase actually).
> 
>> Can it be overwritten during the syscall,
>> either from start of syscall to here, or from here to
>> return to userspace ?
> 
> No.
> 
>>> +
>>> +	/* Check if delay branch uses "copy %rX,%r20" */
>>> +	if ((opcode & 0xffe0ffff) == 0x08000254) {
>>> +		source_reg = (opcode >> 16) & 31;
>>> +		regs->gr[source_reg] = regs->gr[20];
>> 
>> Similar question here, how can we be sure regs->gr[20]
>> still has the system call number at this point (not
>> overwritten from start of syscall to here) ?
> 
> Those registers are saved at entry of syscall and
> restored at exit (with exception of a few registers
> e.g. like r28 which is the return value of the syscall).

Can r28 be used as a source_reg ? If so, what happens then ?

Thanks,

Mathieu

> 
> Helge

-- 
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From - Thu Nov 08 21:38:13 2018
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On 2015-12-24 11:07 AM, Mathieu Desnoyers wrote:
>>> Is it valid to have unaligned instructions ? Does the architecture
>>> >>allow it, or it's a fumble and we should pr_warn ?
>> >
>> >How can it be unaligned? It's about u32...
> That would be an instruction that is volountarily offset
> from 1, 2, 3 bytes from 4-bytes multiples by the application.
> The only situation where I have seen this is in cases where
> applications are trying to play games with the debugger or
> disassembler and hide what they are doing: they can offset
> the start of a function like this, and therefore all the
> instructions within that function.
>
This is not possible on PA-RISC.  Indeed, user instruction addresses are 
always
offset by three.  There is no way to branch to an instruction that is 
offset.

The least significant two bits of an instruction address contain a 
priority level.
User code on linux and hpux executes at level 3.  The only way a user 
can change
privilege level is with a "gate" instruction (a special branch). Whether 
this is
permitted or not depends on page table permissions that the user can't 
change.
In practice, a level change is only allowed on the gateway page.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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Hi Linus,

please pull one late patch for the parisc architecture for kernel v4.4 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.4-4

The architectural design of parisc always uses two instructions to call kernel
syscalls (delayed branch feature). This means that the instruction following
the branch (located in the delay slot of the branch instruction) is executed
before control passes to the branch destination.
Depending on which assembler instruction and how it is used in usersapce in
the delay slot, this sometimes made restarted syscalls like futex() and poll()
failing with -ENOSYS.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (1):
      parisc: Fix syscall restarts

 arch/parisc/kernel/signal.c | 64 ++++++++++++++++++++++++++++++++++++---------
 1 file changed, 52 insertions(+), 12 deletions(-)
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From - Thu Nov 08 21:38:13 2018
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From: Toshi Kani <toshi.kani@hpe.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.kernel.samsung-soc,gmane.linux.kernel.cross-arch,gmane.linux.acpi.devel,gmane.linux.kernel
Subject: [PATCH v2 00/16] Enhance iomem search interfaces and support EINJ to NVDIMM
Date: Fri, 25 Dec 2015 15:09:04 -0700
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Xref: news.gmane.org gmane.linux.kernel.mm:143637 gmane.linux.ports.ia64:25939 gmane.linux.ports.parisc:26280 gmane.linux.ports.sh.devel:52426 gmane.linux.kernel.samsung-soc:51183 gmane.linux.kernel.cross-arch:29981 gmane.linux.acpi.devel:80750 gmane.linux.kernel:2115157
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/143637>

This patch-set enhances the iomem table and its search interfacs, and
then changes EINJ to support NVDIMM.

 - Patches 1-2 add a new System RAM type, IORESOURCE_SYSTEM_RAM, and
   make the iomem search interfaces work with resource flags with
   modifier bits set.  IORESOURCE_SYSTEM_RAM has IORESOURCE_MEM bit set
   for backward compatibility.

 - Patch 3 adds a new field, I/O resource descriptor, in struct resource.
   Drivers can assign their unique descritor to a range when they
   support the iomem search interfaces.

 - Patches 4-9 changes initializations of resource entries.  They set
   the System RAM type to System RAM ranges, set I/O resource descriptors
   to the regions targeted by the iomem search interfaces, and change
   to call kzalloc() where kmalloc() is used to allocate struct resource
   ranges.

 - Patches 10-14 extend the iomem interfaces to check System RAM ranges
   with the System RAM type and the I/O resource descriptor.

 - Patch 15 adds a check to checkpatch.pl to warn on new use of
   walk_iomem_res().

 - Patch 16 changes the EINJ driver to allow injecting a memory error
   to NVDIMM.

---
v2:
 - Add 'desc' to struct resource, and add a new iomem interface to
   search with the desc. (Borislav Petkov)
 - Add a check to checkpatch.pl to warn on new use of walk_iomem_res().
   (Borislav Petkov)

v1:
 - Searching for System RAM in the resource table should not require
   strcmp(). (Borislav Petkov)
 - Add a new System RAM type as a modifier to IORESOURCE_MEM.
   (Linus Torvalds)
 - NVDIMM check needs to be able to distinguish legacy and NFIT pmem
   ranges. (Dan Williams)

---
Toshi Kani (16):
 01/16 resource: Add System RAM resource type
 02/16 resource: make resource flags handled properly
 03/16 resource: Add I/O resource descriptor
 04/16 x86/e820: Set System RAM type and descriptor
 05/16 ia64: Set System RAM type and descriptor
 06/16 arch: Set IORESOURCE_SYSTEM_RAM to System RAM
 07/16 kexec: Set IORESOURCE_SYSTEM_RAM to System RAM
 08/16 xen, mm: Set IORESOURCE_SYSTEM_RAM to System RAM
 09/16 drivers: Initialize resource entry to zero
 10/16 resource: Change walk_system_ram to use System RAM type
 11/16 arm/samsung: Change s3c_pm_run_res() to use System RAM type
 12/16 memremap: Change region_intersects() to take @flags and @desc
 13/16 resource: Add walk_iomem_res_desc()
 14/16 x86,nvdimm,kexec: Use walk_iomem_res_desc() for iomem search
 15/16 checkpatch: Add warning on deprecated walk_iomem_res
 16/16 ACPI/EINJ: Allow memory error injection to NVDIMM

---
 arch/arm/kernel/setup.c            |   6 +-
 arch/arm/plat-samsung/pm-check.c   |   4 +-
 arch/arm64/kernel/setup.c          |   6 +-
 arch/avr32/kernel/setup.c          |   6 +-
 arch/ia64/kernel/efi.c             |  13 ++++-
 arch/ia64/kernel/setup.c           |   6 +-
 arch/m32r/kernel/setup.c           |   4 +-
 arch/mips/kernel/setup.c           |  10 ++--
 arch/parisc/mm/init.c              |   6 +-
 arch/powerpc/mm/mem.c              |   2 +-
 arch/s390/kernel/setup.c           |   8 +--
 arch/score/kernel/setup.c          |   2 +-
 arch/sh/kernel/setup.c             |   8 +--
 arch/sparc/mm/init_64.c            |   8 +--
 arch/tile/kernel/setup.c           |  11 +++-
 arch/unicore32/kernel/setup.c      |   6 +-
 arch/x86/kernel/crash.c            |   4 +-
 arch/x86/kernel/e820.c             |  38 ++++++++++++-
 arch/x86/kernel/pmem.c             |   4 +-
 arch/x86/kernel/setup.c            |   6 +-
 drivers/acpi/acpi_platform.c       |   2 +-
 drivers/acpi/apei/einj.c           |  15 +++--
 drivers/nvdimm/e820.c              |   2 +-
 drivers/parisc/eisa_enumerator.c   |   4 +-
 drivers/rapidio/rio.c              |   8 +--
 drivers/sh/superhyway/superhyway.c |   2 +-
 drivers/xen/balloon.c              |   2 +-
 include/linux/ioport.h             |  33 +++++++++++
 include/linux/mm.h                 |   3 +-
 kernel/kexec_core.c                |   8 ++-
 kernel/kexec_file.c                |   8 +--
 kernel/memremap.c                  |  13 +++--
 kernel/resource.c                  | 110 +++++++++++++++++++++++++++----------
 mm/memory_hotplug.c                |   2 +-
 scripts/checkpatch.pl              |   6 ++
 35 files changed, 265 insertions(+), 111 deletions(-)

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From - Thu Nov 08 21:38:13 2018
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Subject: [PATCH v2 09/16] drivers: Initialize resource entry to zero
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I/O resource descriptor, 'desc' added to struct resource, needs
to be initialized to zero by default.  Some drivers call kmalloc()
to allocate a resource entry, but does not initialize it to zero
by memset().  Change these drivers to call kzalloc(), instead.

Cc: linux-acpi@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
---
 drivers/acpi/acpi_platform.c       |    2 +-
 drivers/parisc/eisa_enumerator.c   |    4 ++--
 drivers/rapidio/rio.c              |    8 ++++----
 drivers/sh/superhyway/superhyway.c |    2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 296b7a1..b6f7fa3 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -62,7 +62,7 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
 	if (count < 0) {
 		return NULL;
 	} else if (count > 0) {
-		resources = kmalloc(count * sizeof(struct resource),
+		resources = kzalloc(count * sizeof(struct resource),
 				    GFP_KERNEL);
 		if (!resources) {
 			dev_err(&adev->dev, "No memory for resources\n");
diff --git a/drivers/parisc/eisa_enumerator.c b/drivers/parisc/eisa_enumerator.c
index a656d9e..21905fe 100644
--- a/drivers/parisc/eisa_enumerator.c
+++ b/drivers/parisc/eisa_enumerator.c
@@ -91,7 +91,7 @@ static int configure_memory(const unsigned char *buf,
 	for (i=0;i<HPEE_MEMORY_MAX_ENT;i++) {
 		c = get_8(buf+len);
 		
-		if (NULL != (res = kmalloc(sizeof(struct resource), GFP_KERNEL))) {
+		if (NULL != (res = kzalloc(sizeof(struct resource), GFP_KERNEL))) {
 			int result;
 			
 			res->name = name;
@@ -183,7 +183,7 @@ static int configure_port(const unsigned char *buf, struct resource *io_parent,
 	for (i=0;i<HPEE_PORT_MAX_ENT;i++) {
 		c = get_8(buf+len);
 		
-		if (NULL != (res = kmalloc(sizeof(struct resource), GFP_KERNEL))) {
+		if (NULL != (res = kzalloc(sizeof(struct resource), GFP_KERNEL))) {
 			res->name = board;
 			res->start = get_16(buf+len+1);
 			res->end = get_16(buf+len+1)+(c&HPEE_PORT_SIZE_MASK)+1;
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index d7b87c6..e220edc 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -117,7 +117,7 @@ int rio_request_inb_mbox(struct rio_mport *mport,
 	if (mport->ops->open_inb_mbox == NULL)
 		goto out;
 
-	res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_mbox_res(res, mbox, mbox);
@@ -185,7 +185,7 @@ int rio_request_outb_mbox(struct rio_mport *mport,
 	if (mport->ops->open_outb_mbox == NULL)
 		goto out;
 
-	res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_mbox_res(res, mbox, mbox);
@@ -285,7 +285,7 @@ int rio_request_inb_dbell(struct rio_mport *mport,
 {
 	int rc = 0;
 
-	struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	struct resource *res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_dbell_res(res, start, end);
@@ -360,7 +360,7 @@ int rio_release_inb_dbell(struct rio_mport *mport, u16 start, u16 end)
 struct resource *rio_request_outb_dbell(struct rio_dev *rdev, u16 start,
 					u16 end)
 {
-	struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	struct resource *res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_dbell_res(res, start, end);
diff --git a/drivers/sh/superhyway/superhyway.c b/drivers/sh/superhyway/superhyway.c
index 2d9e7f3..bb1fb771 100644
--- a/drivers/sh/superhyway/superhyway.c
+++ b/drivers/sh/superhyway/superhyway.c
@@ -66,7 +66,7 @@ int superhyway_add_device(unsigned long base, struct superhyway_device *sdev,
 	superhyway_read_vcr(dev, base, &dev->vcr);
 
 	if (!dev->resource) {
-		dev->resource = kmalloc(sizeof(struct resource), GFP_KERNEL);
+		dev->resource = kzalloc(sizeof(struct resource), GFP_KERNEL);
 		if (!dev->resource) {
 			kfree(dev);
 			return -ENOMEM;

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On Tue, 24 Nov 2015, Mikulas Patocka wrote:

> 
> 
> On Tue, 24 Nov 2015, Helge Deller wrote:
> 
> > * Mikulas Patocka <mpatocka@redhat.com>:
> > > 
> > > 
> > > On Tue, 24 Nov 2015, Helge Deller wrote:
> > > 
> > > > > Hi
> > > > > 
> > > > > Since the kernel 4.4-rc2 I'm getting frequent boot failures on PA-RISC. 
> > > > > When I revert this patchset, the crashes are gone.
> > > > 
> > > > > [    3.296666] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online
> > > > 
> > > > Hi Mikulas,
> > > > 
> > > > Yes, I've seen this as well.
> > > > It affects only the PA8900 CPUs, while all PA8500-PA8700 machines seem to work fine.
> > > > I do have a temporary 3-line patch to avoid the crashes which I'll push to my tree shortly.
> > > > I'm still investigating why it only affects the PA8900 CPUs, but I assume
> > > > it's related to the cache aliasing of those CPUs.
> > > > I'll keep you updated.
> > > > 
> > > > Helge
> > > 
> > > The PA-RISC specification doesn't allow aliasing on non-equaivalent 
> > > addresses. Can the kernel map a piece of kernel data to other virtual 
> > > address? If yes, we can't use big pages to map kernel data.
> > 
> > Can you please try the two patches below?
> > The first one disables mapping kernel text/data on huge pages on
> > PA8800/PA8900 CPUs. Patch works for me on my Mako PA8800.
> > 
> > Independend of my huge page patch the second patch disables the tlb
> > flush optimization we added earlier. It seems calling flush_tlb_all()
> > doesn't reliably flushes tlbs on all CPUs so it's better to fall back to
> > the loop implementation.
> > 
> > Helge
> 
> The kernel with these patches works fine so far.
> 
> Mikulas

BTW. I looked at this in arch/parisc/mm/hugetlbpage.c:set_huge_pte_at 
"*ptep = entry;" and it seems like a bad bug. PA-RISC doesn't have atomic 
instructions to modify page table entries, so it takes spinlock in the TLB 
handler and modifies the page table entry non-atomically. If you modify 
the page table entry without the spinlock, you may race with TLB handler 
on another CPU and your modification may be lost.

The comment says something about double locking on pa_tlb_lock, but 
pa_tlb_lock isn't held when that function is called.

Mikulas
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Hi Thomas,

I see a strange behavior on the parisc platform, for which I'm not sure if it's intended or
if there is a bug somewhere.

The program calls timerfd_settime() and sets a timer (e.g. sec=0, nsec=100000000).
Directly after setting the timer it calls timerfd_gettime() and receives (sec=0, nsec=103914413).
The second nsec is higher than the initial nsec value which was set.

Does timerfd_settime() maybe tries to add the initial time it takes to start the timer?
Any idea or hint?

Thanks,
Helge

Background:
I'm debugging the build-failure on debian for the liblinux-fd-perl package:
https://buildd.debian.org/status/fetch.php?pkg=liblinux-fd-perl&arch=hppa&ver=0.011-1&stamp=1443355593

Here is a log which I get from kernel after adding some printks.
The problematic line is #3. 
[  465.888000] timerfd_settime: interval (sec=0, nsec=0)         it_value (sec=0, nsec=100000000) 
[  466.196000] timerfd_settime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=100000000) 
[  466.300000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=103914413) 
[  466.404000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=97444552) 
[  466.508000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=92611704) 
[  466.616000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=87376859) 
[  466.720000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=82538534) 
[  466.824000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=77293289) 
[  466.928000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=72501584) 
[  467.036000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=67377673) 
[  467.140000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=62631601) 
[  467.244000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=57401824) 
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On 26.12.2015 13:09, Mikulas Patocka wrote:
>> On Tue, 24 Nov 2015, Helge Deller wrote:
>>> * Mikulas Patocka <mpatocka@redhat.com>:
>>>> On Tue, 24 Nov 2015, Helge Deller wrote:
>>>>>> Hi
>>>>>>
>>>>>> Since the kernel 4.4-rc2 I'm getting frequent boot failures on PA-RISC. 
>>>>>> When I revert this patchset, the crashes are gone.
>>>>>
>>>>>> [    3.296666] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online
>>>>>
>>>>> Hi Mikulas,
>>>>>
>>>>> Yes, I've seen this as well.
>>>>> It affects only the PA8900 CPUs, while all PA8500-PA8700 machines seem to work fine.
>>>>> I do have a temporary 3-line patch to avoid the crashes which I'll push to my tree shortly.
>>>>> I'm still investigating why it only affects the PA8900 CPUs, but I assume
>>>>> it's related to the cache aliasing of those CPUs.
>>>>> I'll keep you updated.
>>>>>
>>>>> Helge
>>>>
>>>> The PA-RISC specification doesn't allow aliasing on non-equaivalent 
>>>> addresses. Can the kernel map a piece of kernel data to other virtual 
>>>> address? If yes, we can't use big pages to map kernel data.
>>>
>>> Can you please try the two patches below?
>>> The first one disables mapping kernel text/data on huge pages on
>>> PA8800/PA8900 CPUs. Patch works for me on my Mako PA8800.
>>>
>>> Independend of my huge page patch the second patch disables the tlb
>>> flush optimization we added earlier. It seems calling flush_tlb_all()
>>> doesn't reliably flushes tlbs on all CPUs so it's better to fall back to
>>> the loop implementation.
>>>
>>> Helge
>>
>> The kernel with these patches works fine so far.
>>
>> Mikulas
> 
> BTW. I looked at this in arch/parisc/mm/hugetlbpage.c:set_huge_pte_at 
> "*ptep = entry;" and it seems like a bad bug. PA-RISC doesn't have atomic 
> instructions to modify page table entries, so it takes spinlock in the TLB 
> handler and modifies the page table entry non-atomically. If you modify 
> the page table entry without the spinlock, you may race with TLB handler 
> on another CPU and your modification may be lost.

Right.

> The comment says something about double locking on pa_tlb_lock, but 
> pa_tlb_lock isn't held when that function is called.

I have a work-in-progress patch for that in one of my trees, e.g.:
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=parisc-next&id=5c76b525cbdb097401f46522b27b1eb6244f34f9
It's lightly tested though.

Helge

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Subject: Re: ptrace interface does not permit modification of syscall return
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On 22 Dec 2015 22:10, Helge Deller wrote:
> On 21.12.2015 18:55, Mike Frysinger wrote:
> > i have a ptrace program that watches for specific syscalls and when
> > matched, will:
> >  - on entry change the syscall nr to -1 (so the kernel will skip it)
> >  - on exit change the return to -EPERM so the userspace sees a denial
> >=20
> > i have this working on most arches (x86, x86_64, arm, alpha, ia64, etc.=
=2E.).
> > on parisc, the kernel (using 3.18.7 currently) appears to be wrong.  in=
 my
> > tests, if i don't mess with the syscall nr, i can change the return val=
ue
> > fine (to EPERM or whatever).  but the syscall executed which i do not w=
ant.
> > if i change the syscall to -1, then i can't change the return value (so=
 the
> > child sees ENOSYS), but the kernel still executes the original syscall.
> >=20
> > i have a simple test case attached to show the issue.  the code does:
> >  - spawn a child with the parent tracing it
> >  - child will do:
> >   - dupe stderr to another fd
> >   - unlink a file named ".test.flag"
> >   - write a message through the new fd
> >   - close a magic # so the parent knows to start denying
> >     - should see EPERM but it sees ENOSYS
> >   - close the new fd
> >     - should see EPERM but it is closed!
> >   - write to the new fd
> >     - should work, but the fd is closed
> >   - call create on ".test.flag"
> >     - should see EPERM, but the file is created!
> >  - parent will do:
> >   - log the syscalls until child runs close(-12345)
> >   - the parent will then try to deny all close/creat calls
> >   - uses PTRACE_POKEUSER w/PT_GR20 to set syscall to -1
> >   - uses PTRACE_POKEUSER w/PT_GR28 to set return to -EPERM
> >=20
> > you can run the test case by doing:
> > $ gcc test.c && ./a.out
>=20
> I agree, something is fishy :-)
>=20
> I did some tests with your testcase.
> First problem I had was, that compiling failed since it didn't found the =
asm/offset.h header file.
> Which one did you used? I know it usually should come with the kernel hea=
ders, but there it is asm-offsets.h.

hmm, looks like it got installed by hand at some point (Jul 2004 datestamp!)
and never cleaned up.

> First problem: I had to install the 64bit header file. PT_GR20 in this on=
e was much higher than it should be for 32bit userspace.
>=20
> So, I used those defines (taken from the strace source package):
> #define PT_GR20 (20*4)
> #define PT_GR26 (26*4)
> #define PT_GR28 (28*4)
> #define PT_IAOQ0 (106*4)
> #define PT_IAOQ1 (107*4)

these are the values in my local asm/offset.h, and what i was using
in my original code -- the register # multiplied by 4.

> With that I got those output:

looks like you're seeing the same as me.  i'm only testing 32bit user
and 32bit kernel currently as we don't have a 64bit userspace :).
-mike

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On Fri, Dec 25, 2015 at 03:09:18PM -0700, Toshi Kani wrote:
> I/O resource descriptor, 'desc' added to struct resource, needs
> to be initialized to zero by default.  Some drivers call kmalloc()
> to allocate a resource entry, but does not initialize it to zero
> by memset().  Change these drivers to call kzalloc(), instead.
> 
> Cc: linux-acpi@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-sh@vger.kernel.org
> Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
> ---
>  drivers/acpi/acpi_platform.c       |    2 +-
>  drivers/parisc/eisa_enumerator.c   |    4 ++--
>  drivers/rapidio/rio.c              |    8 ++++----
>  drivers/sh/superhyway/superhyway.c |    2 +-
>  4 files changed, 8 insertions(+), 8 deletions(-)

drivers/sh/ portion:

Acked-by: Simon Horman <horms+renesas@verge.net.au>

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From - Thu Nov 08 21:38:13 2018
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From: Thomas Gleixner <tglx@linutronix.de>
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Subject: Re: timerfd_settime/timerfd_gettime issue ?
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To: Helge Deller <deller@gmx.de>
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Helge,

On Sat, 26 Dec 2015, Helge Deller wrote:

> I see a strange behavior on the parisc platform, for which I'm not sure if
> it's intended or if there is a bug somewhere.

> The program calls timerfd_settime() and sets a timer (e.g. sec=0, nsec=100000000).
> Directly after setting the timer it calls timerfd_gettime() and receives
> (sec=0, nsec=103914413).
> The second nsec is higher than the initial nsec value which was set.
> 
> Does timerfd_settime() maybe tries to add the initial time it takes to start
> the timer?
>
> Any idea or hint?

Yes. This is a fallout from the power aware batching magic. Interesting that
nobody noticed this within 7 years.

Does the patch below fix your issue?

Thanks,

	tglx

8<----------------

diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 76dd4f0da5ca..0f4a3e8734f1 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -268,7 +268,7 @@ static inline s64 hrtimer_get_expires_ns(const struct hrtimer *timer)
 
 static inline ktime_t hrtimer_expires_remaining(const struct hrtimer *timer)
 {
-	return ktime_sub(timer->node.expires, timer->base->get_time());
+	return ktime_sub(timer->_softexpires, timer->base->get_time());
 }
 
 static inline ktime_t hrtimer_cb_get_time(struct hrtimer *timer)
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There was an old message from Guy Martin regarding dladdr not working on hppa:
http://permalink.gmane.org/gmane.linux.ports.hppa/1423

The Debian nss package fails to build because of a dladdr problem:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=791537

I created a small test program and a glibc bug report:
https://sourceware.org/bugzilla/show_bug.cgi?id=19415

This code seems wrong on hppa:

ElfW(Addr)
_dl_lookup_address (const void *address)
{
  ElfW(Addr) addr = (ElfW(Addr)) address;
  struct fdesc_table *t;
  unsigned long int i;

  for (t = local.root; t != NULL; t = t->next)
    {
      i = (struct fdesc *) addr - &t->fdesc[0];
      if (i < t->first_unused && addr == (ElfW(Addr)) &t->fdesc[i])
        {
          addr = t->fdesc[i].ip;
          break;
        }
    }

  return addr;
}

Dave
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Line 474 of drivers/parisc/dino.c reads

        res->name = dino_dev->hba.lmmio_space.name;

but res is &dino_dev->hba.lmmio_space, so this seems to just assign NULL
again to res->name. Presumably the allocation of <= 128 bytes never
fails, but I wonder what the purpose was, and if the confusing else
branch couldn't just be deleted (and then one should just do res->name =
kmemdup(name, size+1, GFP_KERNEL); and delete the if as well).

Rasmus
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On 29.12.2015 10:44, Thomas Gleixner wrote:
> On Sat, 26 Dec 2015, Helge Deller wrote:
>> I see a strange behavior on the parisc platform, for which I'm not sure if
>> it's intended or if there is a bug somewhere.
> 
>> The program calls timerfd_settime() and sets a timer (e.g. sec=0, nsec=100000000).
>> Directly after setting the timer it calls timerfd_gettime() and receives
>> (sec=0, nsec=103914413).
>> The second nsec is higher than the initial nsec value which was set.
>>
>> Does timerfd_settime() maybe tries to add the initial time it takes to start
>> the timer?
>>
>> Any idea or hint?
> 
> Yes. This is a fallout from the power aware batching magic. Interesting that
> nobody noticed this within 7 years.
> 
> Does the patch below fix your issue?

No, the patch below doesn't help.

I still see:
[  644.916000] timerfd_settime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=100000000) 
[  645.024000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=103029949) 

Helge


> diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
> index 76dd4f0da5ca..0f4a3e8734f1 100644
> --- a/include/linux/hrtimer.h
> +++ b/include/linux/hrtimer.h
> @@ -268,7 +268,7 @@ static inline s64 hrtimer_get_expires_ns(const struct hrtimer *timer)
>  
>  static inline ktime_t hrtimer_expires_remaining(const struct hrtimer *timer)
>  {
> -	return ktime_sub(timer->node.expires, timer->base->get_time());
> +	return ktime_sub(timer->_softexpires, timer->base->get_time());
>  }
>  
>  static inline ktime_t hrtimer_cb_get_time(struct hrtimer *timer)

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Hi Rasmus,

On 29.12.2015 21:03, Rasmus Villemoes wrote:
> Line 474 of drivers/parisc/dino.c reads
> 
>         res->name = dino_dev->hba.lmmio_space.name;
> 
> but res is &dino_dev->hba.lmmio_space, so this seems to just assign NULL
> again to res->name. Presumably the allocation of <= 128 bytes never
> fails, but I wonder what the purpose was, and if the confusing else
> branch couldn't just be deleted (and then one should just do res->name =
> kmemdup(name, size+1, GFP_KERNEL); and delete the if as well).

I'd suggest to just delete the else branch.
Do you want to send a patch with signed-off ?

Helge

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: self-assignment in dino_card_setup
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On Tue, 2015-12-29 at 21:22 +0100, Helge Deller wrote:
> Hi Rasmus,
> 
> On 29.12.2015 21:03, Rasmus Villemoes wrote:
> > Line 474 of drivers/parisc/dino.c reads
> > 
> >         res->name = dino_dev->hba.lmmio_space.name;
> > 
> > but res is &dino_dev->hba.lmmio_space, so this seems to just assign
> > NULL
> > again to res->name. Presumably the allocation of <= 128 bytes never
> > fails, but I wonder what the purpose was, and if the confusing else
> > branch couldn't just be deleted (and then one should just do res
> > ->name =
> > kmemdup(name, size+1, GFP_KERNEL); and delete the if as well).
> 
> I'd suggest to just delete the else branch.
> Do you want to send a patch with signed-off ?

Actually, I'd guess the intention was to put back whatever the contents
of lmmio_space.name originally was ... it's usually some default static
string.

James


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From - Thu Nov 08 21:38:14 2018
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From: Thomas Gleixner <tglx@linutronix.de>
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On Tue, 29 Dec 2015, Helge Deller wrote:
> No, the patch below doesn't help.
> 
> I still see:
> [  644.916000] timerfd_settime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=100000000) 
> [  645.024000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=103029949) 
> 

Right. It can't help. Sorry for the distraction.

Looking deeper I found the issue. It's caused by CONFIG_TIME_LOW_RES. See the
comment in hrtimer_start_range_ns(). We round the expiry time to the next
jiffies period to avoid short timeouts. Assuming you are running with HZ=250
this is exactly 4ms. So that's where your extra time comes from.

Not sure what to do about that.

Thanks,

	tglx






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From - Thu Nov 08 21:38:14 2018
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From - Thu Nov 08 21:38:14 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Use relative addresses in exception tables
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Change exception tables to use relative instead of absolute addresses.
This saves quite some memory in the vmlinux binary with the 64bit
kernel.

This patch depends on the patch series "generic relative extable
support" by Ard Biesheuvel <ard.biesheuvel@linaro.org>

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/assembly.h b/arch/parisc/include/asm/assembly.h
index b3069fd..d6a2458 100644
--- a/arch/parisc/include/asm/assembly.h
+++ b/arch/parisc/include/asm/assembly.h
@@ -523,7 +523,7 @@
 	 */
 #define ASM_EXCEPTIONTABLE_ENTRY(fault_addr, except_addr)	\
 	.section __ex_table,"aw"			!	\
-	ASM_ULONG_INSN	fault_addr, except_addr		!	\
+	.word 	(fault_addr - .), (except_addr - .)	!	\
 	.previous
 
 
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 0abdd4c..d4dd6e5 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -60,14 +60,15 @@ static inline long access_ok(int type, const void __user * addr,
  * use a 32bit (unsigned int) address here.
  */
 
+#define ARCH_HAS_RELATIVE_EXTABLE
 struct exception_table_entry {
-	unsigned long insn;	/* address of insn that is allowed to fault. */
-	unsigned long fixup;	/* fixup routine */
+	int insn;	/* relative address of insn that is allowed to fault. */
+	int fixup;	/* relative address of fixup routine */
 };
 
 #define ASM_EXCEPTIONTABLE_ENTRY( fault_addr, except_addr )\
 	".section __ex_table,\"aw\"\n"			   \
-	ASM_WORD_INSN #fault_addr ", " #except_addr "\n\t" \
+	".word (" #fault_addr " - .), (" #except_addr " - .)\n\t" \
 	".previous\n"
 
 /*
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index a762864..26fac9c 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -140,12 +140,6 @@ int fixup_exception(struct pt_regs *regs)
 {
 	const struct exception_table_entry *fix;
 
-	/* If we only stored 32bit addresses in the exception table we can drop
-	 * out if we faulted on a 64bit address. */
-	if ((sizeof(regs->iaoq[0]) > sizeof(fix->insn))
-		&& (regs->iaoq[0] >> 32))
-			return 0;
-
 	fix = search_exception_tables(regs->iaoq[0]);
 	if (fix) {
 		struct exception_data *d;
@@ -154,7 +148,8 @@ int fixup_exception(struct pt_regs *regs)
 		d->fault_space = regs->isr;
 		d->fault_addr = regs->ior;
 
-		regs->iaoq[0] = ((fix->fixup) & ~3);
+		regs->iaoq[0] = (unsigned long)&fix->fixup + fix->fixup;
+		regs->iaoq[0] &= ~3;
 		/*
 		 * NOTE: In some cases the faulting instruction
 		 * may be in the delay slot of a branch. We
diff --git a/scripts/sortextable.c b/scripts/sortextable.c
index af247c7..2944391 100644
--- a/scripts/sortextable.c
+++ b/scripts/sortextable.c
@@ -283,6 +283,7 @@ do_file(char const *const fname)
 	case EM_X86_64:
 	case EM_S390:
 	case EM_AARCH64:
+	case EM_PARISC:
 		custom_sort = sort_relative_table;
 		break;
 	case EM_ARCOMPACT:
--
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On Sat, 26 Dec 2015, Helge Deller wrote:

> On 26.12.2015 13:09, Mikulas Patocka wrote:
> 
> > BTW. I looked at this in arch/parisc/mm/hugetlbpage.c:set_huge_pte_at 
> > "*ptep = entry;" and it seems like a bad bug. PA-RISC doesn't have atomic 
> > instructions to modify page table entries, so it takes spinlock in the TLB 
> > handler and modifies the page table entry non-atomically. If you modify 
> > the page table entry without the spinlock, you may race with TLB handler 
> > on another CPU and your modification may be lost.
> 
> Right.
> 
> > The comment says something about double locking on pa_tlb_lock, but 
> > pa_tlb_lock isn't held when that function is called.
> 
> I have a work-in-progress patch for that in one of my trees, e.g.:
> http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=parisc-next&id=5c76b525cbdb097401f46522b27b1eb6244f34f9
> It's lightly tested though.
> 
> Helge

I tested the patch and it works OK for me so far.

BTW. what happens if some kernel code takes the TLB spinlock and then TLB 
miss in kernel space happens? (it would attempt to lock the spinlock 
recursively) Is it assumed that the TLB is big enough that this can't 
happen?

Mikulas
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Subject: Re: [GIT PULL] parisc huge page support for v4.4
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On 2016-01-04 4:24 PM, Mikulas Patocka wrote:
>
> On Sat, 26 Dec 2015, Helge Deller wrote:
>
>> On 26.12.2015 13:09, Mikulas Patocka wrote:
>>
>>> BTW. I looked at this in arch/parisc/mm/hugetlbpage.c:set_huge_pte_at
>>> "*ptep = entry;" and it seems like a bad bug. PA-RISC doesn't have atomic
>>> instructions to modify page table entries, so it takes spinlock in the TLB
>>> handler and modifies the page table entry non-atomically. If you modify
>>> the page table entry without the spinlock, you may race with TLB handler
>>> on another CPU and your modification may be lost.
>> Right.
>>
>>> The comment says something about double locking on pa_tlb_lock, but
>>> pa_tlb_lock isn't held when that function is called.
>> I have a work-in-progress patch for that in one of my trees, e.g.:
>> http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=parisc-next&id=5c76b525cbdb097401f46522b27b1eb6244f34f9
>> It's lightly tested though.
>>
>> Helge
> I tested the patch and it works OK for me so far.
>
> BTW. what happens if some kernel code takes the TLB spinlock and then TLB
> miss in kernel space happens? (it would attempt to lock the spinlock
> recursively) Is it assumed that the TLB is big enough that this can't
> happen?
No.  If you look at the TLB handler, you will see that locking is not 
done for misses in
kernel space.  So, this deadlock doesn't occur.

Dave

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Subject: Re: timerfd_settime/timerfd_gettime issue ?
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Hi Thomas,

* Thomas Gleixner <tglx@linutronix.de>:
> On Tue, 29 Dec 2015, Helge Deller wrote:
> > No, the patch below doesn't help.
> > 
> > I still see:
> > [  644.916000] timerfd_settime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=100000000) 
> > [  645.024000] timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=103029949) 
> > 
> 
> Right. It can't help. Sorry for the distraction.
> 
> Looking deeper I found the issue. It's caused by CONFIG_TIME_LOW_RES. See the
> comment in hrtimer_start_range_ns(). We round the expiry time to the next
> jiffies period to avoid short timeouts. Assuming you are running with HZ=250
> this is exactly 4ms. So that's where your extra time comes from.

Yes, that seems right.

> Not sure what to do about that.

The patch below seems to solve the issue for me. But I'm not sure if
there might be any side-effects. What do you think? Does the patch
seems correct? It just adjusts to values returned to userspace (and thus
hides the internal roundings).

Thanks,
Helge

diff --git a/fs/timerfd.c b/fs/timerfd.c
index b94fa6c..9b6cc73 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -152,8 +152,16 @@ static ktime_t timerfd_get_remaining(struct timerfd_ctx *ctx)
 
 	if (isalarm(ctx))
 		remaining = alarm_expires_remaining(&ctx->t.alarm);
-	else
+	else {
 		remaining = hrtimer_expires_remaining(&ctx->t.tmr);
+#ifdef CONFIG_TIME_LOW_RES
+		/* Expiry time was rounded up in hrtimer_start_range_ns()
+		 * to the next jiffies period to avoid short timeouts.
+		 * Subtract it here again to avoid userspace seeing higher
+		 * values than expected. */
+		remaining.tv64 -= hrtimer_resolution;
+#endif
+	}
 
 	return remaining.tv64 < 0 ? ktime_set(0, 0): remaining;
 }
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Archived-At: <http://permalink.gmane.org/gmane.linux.acpi.devel/80924>

This patch-set enhances the iomem table and its search interfacs, and
then changes EINJ to support NVDIMM.

 - Patches 1-2 add a new System RAM type, IORESOURCE_SYSTEM_RAM, and
   make the iomem search interfaces work with resource flags with
   modifier bits set.  IORESOURCE_SYSTEM_RAM has IORESOURCE_MEM bit set
   for backward compatibility.

 - Patch 3 adds a new field, I/O resource descriptor, into struct resource.
   Drivers can assign their unique descritor to a range when they support
   the iomem search interfaces.

 - Patches 4-9 changes initializations of resource entries.  They set
   the System RAM type to System RAM ranges, set I/O resource descriptors
   to the regions targeted by the iomem search interfaces, and change
   to call kzalloc() where kmalloc() is used to allocate struct resource
   ranges.

 - Patches 10-14 extend the iomem interfaces to check System RAM ranges
   with the System RAM type and the I/O resource descriptor.

 - Patch 15-16 remove deprecated walk_iomem_res().

 - Patch 17 changes the EINJ driver to allow injecting a memory error
   to NVDIMM.

---
v3:
 - Remove the walk_iomem_res() call with "GART" in crash.c since it is
   no longer needed. Then kill walk_iomem_res(). (Borislav Petkov,
   Dave Young)
 - Change to use crashk_res.desc at the walk_iomem_res_desc() call in
   kexec_add_buffer(). (Minfei Huang)

v2:
 - Add 'desc' to struct resource, and add a new iomem interface to
   search with the desc. (Borislav Petkov)
 - Add a check to checkpatch.pl to warn on new use of walk_iomem_res().
   (Borislav Petkov)

v1:
 - Searching for System RAM in the resource table should not require
   strcmp(). (Borislav Petkov)
 - Add a new System RAM type as a modifier to IORESOURCE_MEM.
   (Linus Torvalds)
 - NVDIMM check needs to be able to distinguish legacy and NFIT pmem
   ranges. (Dan Williams)

---
Toshi Kani (17):
 01/17 resource: Add System RAM resource type
 02/17 resource: make resource flags handled properly
 03/17 resource: Add I/O resource descriptor
 04/17 x86/e820: Set System RAM type and descriptor
 05/17 ia64: Set System RAM type and descriptor
 06/17 arch: Set IORESOURCE_SYSTEM_RAM to System RAM
 07/17 kexec: Set IORESOURCE_SYSTEM_RAM to System RAM
 08/17 xen, mm: Set IORESOURCE_SYSTEM_RAM to System RAM
 09/17 drivers: Initialize resource entry to zero
 10/17 resource: Change walk_system_ram to use System RAM type
 11/17 arm/samsung: Change s3c_pm_run_res() to use System RAM type
 12/17 memremap: Change region_intersects() to take @flags and @desc
 13/17 resource: Add walk_iomem_res_desc()
 14/17 x86,nvdimm,kexec: Use walk_iomem_res_desc() for iomem search
 15/17 x86/kexec: Remove walk_iomem_res() call with GART
 16/17 resource: Kill walk_iomem_res()
 17/17 ACPI/EINJ: Allow memory error injection to NVDIMM

---
 arch/arm/kernel/setup.c            |  6 +--
 arch/arm/plat-samsung/pm-check.c   |  4 +-
 arch/arm64/kernel/setup.c          |  6 +--
 arch/avr32/kernel/setup.c          |  6 +--
 arch/ia64/kernel/efi.c             | 13 ++++--
 arch/ia64/kernel/setup.c           |  6 +--
 arch/m32r/kernel/setup.c           |  4 +-
 arch/mips/kernel/setup.c           | 10 +++--
 arch/parisc/mm/init.c              |  6 +--
 arch/powerpc/mm/mem.c              |  2 +-
 arch/s390/kernel/setup.c           |  8 ++--
 arch/score/kernel/setup.c          |  2 +-
 arch/sh/kernel/setup.c             |  8 ++--
 arch/sparc/mm/init_64.c            |  8 ++--
 arch/tile/kernel/setup.c           | 11 +++--
 arch/unicore32/kernel/setup.c      |  6 +--
 arch/x86/kernel/crash.c            | 41 ++-----------------
 arch/x86/kernel/e820.c             | 38 ++++++++++++++++-
 arch/x86/kernel/pmem.c             |  4 +-
 arch/x86/kernel/setup.c            |  6 +--
 drivers/acpi/acpi_platform.c       |  2 +-
 drivers/acpi/apei/einj.c           | 15 +++++--
 drivers/nvdimm/e820.c              |  2 +-
 drivers/parisc/eisa_enumerator.c   |  4 +-
 drivers/rapidio/rio.c              |  8 ++--
 drivers/sh/superhyway/superhyway.c |  2 +-
 drivers/xen/balloon.c              |  2 +-
 include/linux/ioport.h             | 33 ++++++++++++++-
 include/linux/mm.h                 |  3 +-
 kernel/kexec_core.c                |  8 ++--
 kernel/kexec_file.c                |  8 ++--
 kernel/memremap.c                  | 13 +++---
 kernel/resource.c                  | 83 ++++++++++++++++++++++----------------
 mm/memory_hotplug.c                |  2 +-
 34 files changed, 225 insertions(+), 155 deletions(-)
--
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From - Thu Nov 08 21:38:15 2018
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From: Toshi Kani <toshi.kani@hpe.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.acpi.devel,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: [PATCH v3 09/17] drivers: Initialize resource entry to zero
Date: Tue,  5 Jan 2016 11:54:33 -0700
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/143913>

I/O resource descriptor, 'desc' in struct resource, needs to be
initialized to zero by default.  Some drivers call kmalloc() to
allocate a resource entry, but does not initialize it to zero by
memset().  Change these drivers to call kzalloc(), instead.

Cc: linux-acpi@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Acked-by: Simon Horman <horms+renesas@verge.net.au> # sh
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
---
 drivers/acpi/acpi_platform.c       |    2 +-
 drivers/parisc/eisa_enumerator.c   |    4 ++--
 drivers/rapidio/rio.c              |    8 ++++----
 drivers/sh/superhyway/superhyway.c |    2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 296b7a1..b6f7fa3 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -62,7 +62,7 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
 	if (count < 0) {
 		return NULL;
 	} else if (count > 0) {
-		resources = kmalloc(count * sizeof(struct resource),
+		resources = kzalloc(count * sizeof(struct resource),
 				    GFP_KERNEL);
 		if (!resources) {
 			dev_err(&adev->dev, "No memory for resources\n");
diff --git a/drivers/parisc/eisa_enumerator.c b/drivers/parisc/eisa_enumerator.c
index a656d9e..21905fe 100644
--- a/drivers/parisc/eisa_enumerator.c
+++ b/drivers/parisc/eisa_enumerator.c
@@ -91,7 +91,7 @@ static int configure_memory(const unsigned char *buf,
 	for (i=0;i<HPEE_MEMORY_MAX_ENT;i++) {
 		c = get_8(buf+len);
 		
-		if (NULL != (res = kmalloc(sizeof(struct resource), GFP_KERNEL))) {
+		if (NULL != (res = kzalloc(sizeof(struct resource), GFP_KERNEL))) {
 			int result;
 			
 			res->name = name;
@@ -183,7 +183,7 @@ static int configure_port(const unsigned char *buf, struct resource *io_parent,
 	for (i=0;i<HPEE_PORT_MAX_ENT;i++) {
 		c = get_8(buf+len);
 		
-		if (NULL != (res = kmalloc(sizeof(struct resource), GFP_KERNEL))) {
+		if (NULL != (res = kzalloc(sizeof(struct resource), GFP_KERNEL))) {
 			res->name = board;
 			res->start = get_16(buf+len+1);
 			res->end = get_16(buf+len+1)+(c&HPEE_PORT_SIZE_MASK)+1;
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index d7b87c6..e220edc 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -117,7 +117,7 @@ int rio_request_inb_mbox(struct rio_mport *mport,
 	if (mport->ops->open_inb_mbox == NULL)
 		goto out;
 
-	res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_mbox_res(res, mbox, mbox);
@@ -185,7 +185,7 @@ int rio_request_outb_mbox(struct rio_mport *mport,
 	if (mport->ops->open_outb_mbox == NULL)
 		goto out;
 
-	res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_mbox_res(res, mbox, mbox);
@@ -285,7 +285,7 @@ int rio_request_inb_dbell(struct rio_mport *mport,
 {
 	int rc = 0;
 
-	struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	struct resource *res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_dbell_res(res, start, end);
@@ -360,7 +360,7 @@ int rio_release_inb_dbell(struct rio_mport *mport, u16 start, u16 end)
 struct resource *rio_request_outb_dbell(struct rio_dev *rdev, u16 start,
 					u16 end)
 {
-	struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	struct resource *res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_dbell_res(res, start, end);
diff --git a/drivers/sh/superhyway/superhyway.c b/drivers/sh/superhyway/superhyway.c
index 2d9e7f3..bb1fb771 100644
--- a/drivers/sh/superhyway/superhyway.c
+++ b/drivers/sh/superhyway/superhyway.c
@@ -66,7 +66,7 @@ int superhyway_add_device(unsigned long base, struct superhyway_device *sdev,
 	superhyway_read_vcr(dev, base, &dev->vcr);
 
 	if (!dev->resource) {
-		dev->resource = kmalloc(sizeof(struct resource), GFP_KERNEL);
+		dev->resource = kzalloc(sizeof(struct resource), GFP_KERNEL);
 		if (!dev->resource) {
 			kfree(dev);
 			return -ENOMEM;

--
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From - Thu Nov 08 21:38:15 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.acpi.devel,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: Re: [PATCH v3 09/17] drivers: Initialize resource entry to zero
Date: Tue, 5 Jan 2016 21:57:33 +0100
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Approved: news@gmane.org
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References: <1452020081-26534-1-git-send-email-toshi.kani@hpe.com>
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To: Toshi Kani <toshi.kani@hpe.com>, akpm@linux-foundation.org, bp@alien8.de
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Xref: news.gmane.org gmane.linux.kernel.mm:143925 gmane.linux.kernel.cross-arch:30199 gmane.linux.kernel:2119436 gmane.linux.acpi.devel:80929 gmane.linux.ports.parisc:26304 gmane.linux.ports.sh.devel:52655
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/143925>

On 05.01.2016 19:54, Toshi Kani wrote:
> I/O resource descriptor, 'desc' in struct resource, needs to be
> initialized to zero by default.  Some drivers call kmalloc() to
> allocate a resource entry, but does not initialize it to zero by
> memset().  Change these drivers to call kzalloc(), instead.
> 
> Cc: linux-acpi@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-sh@vger.kernel.org
> Acked-by: Simon Horman <horms+renesas@verge.net.au> # sh
> Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
> ---
>  drivers/acpi/acpi_platform.c       |    2 +-
>  drivers/parisc/eisa_enumerator.c   |    4 ++--

The parisc changes look good. For those:
Acked-by: Helge Deller <deller@gmx.de>



>  drivers/rapidio/rio.c              |    8 ++++----
>  drivers/sh/superhyway/superhyway.c |    2 +-
>  4 files changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
> index 296b7a1..b6f7fa3 100644
> --- a/drivers/acpi/acpi_platform.c
> +++ b/drivers/acpi/acpi_platform.c
> @@ -62,7 +62,7 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
>  	if (count < 0) {
>  		return NULL;
>  	} else if (count > 0) {
> -		resources = kmalloc(count * sizeof(struct resource),
> +		resources = kzalloc(count * sizeof(struct resource),
>  				    GFP_KERNEL);
>  		if (!resources) {
>  			dev_err(&adev->dev, "No memory for resources\n");
> diff --git a/drivers/parisc/eisa_enumerator.c b/drivers/parisc/eisa_enumerator.c
> index a656d9e..21905fe 100644
> --- a/drivers/parisc/eisa_enumerator.c
> +++ b/drivers/parisc/eisa_enumerator.c
> @@ -91,7 +91,7 @@ static int configure_memory(const unsigned char *buf,
>  	for (i=0;i<HPEE_MEMORY_MAX_ENT;i++) {
>  		c = get_8(buf+len);
>  		
> -		if (NULL != (res = kmalloc(sizeof(struct resource), GFP_KERNEL))) {
> +		if (NULL != (res = kzalloc(sizeof(struct resource), GFP_KERNEL))) {
>  			int result;
>  			
>  			res->name = name;
> @@ -183,7 +183,7 @@ static int configure_port(const unsigned char *buf, struct resource *io_parent,
>  	for (i=0;i<HPEE_PORT_MAX_ENT;i++) {
>  		c = get_8(buf+len);
>  		
> -		if (NULL != (res = kmalloc(sizeof(struct resource), GFP_KERNEL))) {
> +		if (NULL != (res = kzalloc(sizeof(struct resource), GFP_KERNEL))) {
>  			res->name = board;
>  			res->start = get_16(buf+len+1);
>  			res->end = get_16(buf+len+1)+(c&HPEE_PORT_SIZE_MASK)+1;
> diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
> index d7b87c6..e220edc 100644
> --- a/drivers/rapidio/rio.c
> +++ b/drivers/rapidio/rio.c
> @@ -117,7 +117,7 @@ int rio_request_inb_mbox(struct rio_mport *mport,
>  	if (mport->ops->open_inb_mbox == NULL)
>  		goto out;
>  
> -	res = kmalloc(sizeof(struct resource), GFP_KERNEL);
> +	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
>  
>  	if (res) {
>  		rio_init_mbox_res(res, mbox, mbox);
> @@ -185,7 +185,7 @@ int rio_request_outb_mbox(struct rio_mport *mport,
>  	if (mport->ops->open_outb_mbox == NULL)
>  		goto out;
>  
> -	res = kmalloc(sizeof(struct resource), GFP_KERNEL);
> +	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
>  
>  	if (res) {
>  		rio_init_mbox_res(res, mbox, mbox);
> @@ -285,7 +285,7 @@ int rio_request_inb_dbell(struct rio_mport *mport,
>  {
>  	int rc = 0;
>  
> -	struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
> +	struct resource *res = kzalloc(sizeof(struct resource), GFP_KERNEL);
>  
>  	if (res) {
>  		rio_init_dbell_res(res, start, end);
> @@ -360,7 +360,7 @@ int rio_release_inb_dbell(struct rio_mport *mport, u16 start, u16 end)
>  struct resource *rio_request_outb_dbell(struct rio_dev *rdev, u16 start,
>  					u16 end)
>  {
> -	struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
> +	struct resource *res = kzalloc(sizeof(struct resource), GFP_KERNEL);
>  
>  	if (res) {
>  		rio_init_dbell_res(res, start, end);
> diff --git a/drivers/sh/superhyway/superhyway.c b/drivers/sh/superhyway/superhyway.c
> index 2d9e7f3..bb1fb771 100644
> --- a/drivers/sh/superhyway/superhyway.c
> +++ b/drivers/sh/superhyway/superhyway.c
> @@ -66,7 +66,7 @@ int superhyway_add_device(unsigned long base, struct superhyway_device *sdev,
>  	superhyway_read_vcr(dev, base, &dev->vcr);
>  
>  	if (!dev->resource) {
> -		dev->resource = kmalloc(sizeof(struct resource), GFP_KERNEL);
> +		dev->resource = kzalloc(sizeof(struct resource), GFP_KERNEL);
>  		if (!dev->resource) {
>  			kfree(dev);
>  			return -ENOMEM;
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

--
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From - Thu Nov 08 21:38:15 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Toshi Kani <toshi.kani@hpe.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.acpi.devel,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: [PATCH v3 UPDATE 09/17] drivers: Initialize resource entry to zero
Date: Tue,  5 Jan 2016 14:15:37 -0700
Lines: 117
Approved: news@gmane.org
Message-ID: <1452028537-27365-1-git-send-email-toshi.kani@hpe.com>
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Cc: linux-arch@vger.kernel.org,
	linux-mm@kvack.org,
	linux-kernel@vger.kernel.org,
	Matt Porter <mporter@kernel.crashing.org>,
	Alexandre Bounine <alexandre.bounine@idt.com>,
	linux-acpi@vger.kernel.org,
	linux-parisc@vger.kernel.org,
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	Toshi Kani <toshi.kani@hpe.com>
To: akpm@linux-foundation.org,
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Xref: news.gmane.org gmane.linux.kernel.mm:143927 gmane.linux.kernel.cross-arch:30200 gmane.linux.kernel:2119457 gmane.linux.acpi.devel:80930 gmane.linux.ports.parisc:26305 gmane.linux.ports.sh.devel:52656
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/143927>

I/O resource descriptor, 'desc' in struct resource, needs to be
initialized to zero by default.  Some drivers call kmalloc() to
allocate a resource entry, but does not initialize it to zero by
memset().  Change these drivers to call kzalloc(), instead.

Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: linux-acpi@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Acked-by: Simon Horman <horms+renesas@verge.net.au> # sh
Acked-by: Helge Deller <deller@gmx.de> # parisc
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
---
v3 UPDATE: Add cc to RAPIDIO maintainers that was missing.
---
 drivers/acpi/acpi_platform.c       |    2 +-
 drivers/parisc/eisa_enumerator.c   |    4 ++--
 drivers/rapidio/rio.c              |    8 ++++----
 drivers/sh/superhyway/superhyway.c |    2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 296b7a1..b6f7fa3 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -62,7 +62,7 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
 	if (count < 0) {
 		return NULL;
 	} else if (count > 0) {
-		resources = kmalloc(count * sizeof(struct resource),
+		resources = kzalloc(count * sizeof(struct resource),
 				    GFP_KERNEL);
 		if (!resources) {
 			dev_err(&adev->dev, "No memory for resources\n");
diff --git a/drivers/parisc/eisa_enumerator.c b/drivers/parisc/eisa_enumerator.c
index a656d9e..21905fe 100644
--- a/drivers/parisc/eisa_enumerator.c
+++ b/drivers/parisc/eisa_enumerator.c
@@ -91,7 +91,7 @@ static int configure_memory(const unsigned char *buf,
 	for (i=0;i<HPEE_MEMORY_MAX_ENT;i++) {
 		c = get_8(buf+len);
 		
-		if (NULL != (res = kmalloc(sizeof(struct resource), GFP_KERNEL))) {
+		if (NULL != (res = kzalloc(sizeof(struct resource), GFP_KERNEL))) {
 			int result;
 			
 			res->name = name;
@@ -183,7 +183,7 @@ static int configure_port(const unsigned char *buf, struct resource *io_parent,
 	for (i=0;i<HPEE_PORT_MAX_ENT;i++) {
 		c = get_8(buf+len);
 		
-		if (NULL != (res = kmalloc(sizeof(struct resource), GFP_KERNEL))) {
+		if (NULL != (res = kzalloc(sizeof(struct resource), GFP_KERNEL))) {
 			res->name = board;
 			res->start = get_16(buf+len+1);
 			res->end = get_16(buf+len+1)+(c&HPEE_PORT_SIZE_MASK)+1;
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index d7b87c6..e220edc 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -117,7 +117,7 @@ int rio_request_inb_mbox(struct rio_mport *mport,
 	if (mport->ops->open_inb_mbox == NULL)
 		goto out;
 
-	res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_mbox_res(res, mbox, mbox);
@@ -185,7 +185,7 @@ int rio_request_outb_mbox(struct rio_mport *mport,
 	if (mport->ops->open_outb_mbox == NULL)
 		goto out;
 
-	res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_mbox_res(res, mbox, mbox);
@@ -285,7 +285,7 @@ int rio_request_inb_dbell(struct rio_mport *mport,
 {
 	int rc = 0;
 
-	struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	struct resource *res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_dbell_res(res, start, end);
@@ -360,7 +360,7 @@ int rio_release_inb_dbell(struct rio_mport *mport, u16 start, u16 end)
 struct resource *rio_request_outb_dbell(struct rio_dev *rdev, u16 start,
 					u16 end)
 {
-	struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	struct resource *res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_dbell_res(res, start, end);
diff --git a/drivers/sh/superhyway/superhyway.c b/drivers/sh/superhyway/superhyway.c
index 2d9e7f3..bb1fb771 100644
--- a/drivers/sh/superhyway/superhyway.c
+++ b/drivers/sh/superhyway/superhyway.c
@@ -66,7 +66,7 @@ int superhyway_add_device(unsigned long base, struct superhyway_device *sdev,
 	superhyway_read_vcr(dev, base, &dev->vcr);
 
 	if (!dev->resource) {
-		dev->resource = kmalloc(sizeof(struct resource), GFP_KERNEL);
+		dev->resource = kzalloc(sizeof(struct resource), GFP_KERNEL);
 		if (!dev->resource) {
 			kfree(dev);
 			return -ENOMEM;

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Subject: Re: [PATCH v3 UPDATE 09/17] drivers: Initialize resource entry to zero
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To: Toshi Kani <toshi.kani@hpe.com>
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On Tuesday, January 05, 2016 02:15:37 PM Toshi Kani wrote:
> I/O resource descriptor, 'desc' in struct resource, needs to be
> initialized to zero by default.  Some drivers call kmalloc() to
> allocate a resource entry, but does not initialize it to zero by
> memset().  Change these drivers to call kzalloc(), instead.
> 
> Cc: Matt Porter <mporter@kernel.crashing.org>
> Cc: Alexandre Bounine <alexandre.bounine@idt.com>
> Cc: linux-acpi@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-sh@vger.kernel.org
> Acked-by: Simon Horman <horms+renesas@verge.net.au> # sh
> Acked-by: Helge Deller <deller@gmx.de> # parisc
> Signed-off-by: Toshi Kani <toshi.kani@hpe.com>

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

for the ACPI part.

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Ack-ed.

Alex.

-----Original Message-----
From: Toshi Kani [mailto:toshi.kani@hpe.com]=20
Sent: Tuesday, January 05, 2016 4:16 PM
To: akpm@linux-foundation.org; bp@alien8.de
Cc: linux-arch@vger.kernel.org; linux-mm@kvack.org; linux-kernel@vger.kerne=
l.org; Matt Porter; Bounine, Alexandre; linux-acpi@vger.kernel.org; linux-p=
arisc@vger.kernel.org; linux-sh@vger.kernel.org; Toshi Kani
Subject: [PATCH v3 UPDATE 09/17] drivers: Initialize resource entry to zero

I/O resource descriptor, 'desc' in struct resource, needs to be
initialized to zero by default.  Some drivers call kmalloc() to
allocate a resource entry, but does not initialize it to zero by
memset().  Change these drivers to call kzalloc(), instead.

Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: linux-acpi@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Acked-by: Simon Horman <horms+renesas@verge.net.au> # sh
Acked-by: Helge Deller <deller@gmx.de> # parisc
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
---
v3 UPDATE: Add cc to RAPIDIO maintainers that was missing.
---
 drivers/acpi/acpi_platform.c       |    2 +-
 drivers/parisc/eisa_enumerator.c   |    4 ++--
 drivers/rapidio/rio.c              |    8 ++++----
 drivers/sh/superhyway/superhyway.c |    2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 296b7a1..b6f7fa3 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -62,7 +62,7 @@ struct platform_device *acpi_create_platform_device(struc=
t acpi_device *adev)
 	if (count < 0) {
 		return NULL;
 	} else if (count > 0) {
-		resources =3D kmalloc(count * sizeof(struct resource),
+		resources =3D kzalloc(count * sizeof(struct resource),
 				    GFP_KERNEL);
 		if (!resources) {
 			dev_err(&adev->dev, "No memory for resources\n");
diff --git a/drivers/parisc/eisa_enumerator.c b/drivers/parisc/eisa_enumera=
tor.c
index a656d9e..21905fe 100644
--- a/drivers/parisc/eisa_enumerator.c
+++ b/drivers/parisc/eisa_enumerator.c
@@ -91,7 +91,7 @@ static int configure_memory(const unsigned char *buf,
 	for (i=3D0;i<HPEE_MEMORY_MAX_ENT;i++) {
 		c =3D get_8(buf+len);
 	=09
-		if (NULL !=3D (res =3D kmalloc(sizeof(struct resource), GFP_KERNEL))) {
+		if (NULL !=3D (res =3D kzalloc(sizeof(struct resource), GFP_KERNEL))) {
 			int result;
 		=09
 			res->name =3D name;
@@ -183,7 +183,7 @@ static int configure_port(const unsigned char *buf, str=
uct resource *io_parent,
 	for (i=3D0;i<HPEE_PORT_MAX_ENT;i++) {
 		c =3D get_8(buf+len);
 	=09
-		if (NULL !=3D (res =3D kmalloc(sizeof(struct resource), GFP_KERNEL))) {
+		if (NULL !=3D (res =3D kzalloc(sizeof(struct resource), GFP_KERNEL))) {
 			res->name =3D board;
 			res->start =3D get_16(buf+len+1);
 			res->end =3D get_16(buf+len+1)+(c&HPEE_PORT_SIZE_MASK)+1;
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index d7b87c6..e220edc 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -117,7 +117,7 @@ int rio_request_inb_mbox(struct rio_mport *mport,
 	if (mport->ops->open_inb_mbox =3D=3D NULL)
 		goto out;
=20
-	res =3D kmalloc(sizeof(struct resource), GFP_KERNEL);
+	res =3D kzalloc(sizeof(struct resource), GFP_KERNEL);
=20
 	if (res) {
 		rio_init_mbox_res(res, mbox, mbox);
@@ -185,7 +185,7 @@ int rio_request_outb_mbox(struct rio_mport *mport,
 	if (mport->ops->open_outb_mbox =3D=3D NULL)
 		goto out;
=20
-	res =3D kmalloc(sizeof(struct resource), GFP_KERNEL);
+	res =3D kzalloc(sizeof(struct resource), GFP_KERNEL);
=20
 	if (res) {
 		rio_init_mbox_res(res, mbox, mbox);
@@ -285,7 +285,7 @@ int rio_request_inb_dbell(struct rio_mport *mport,
 {
 	int rc =3D 0;
=20
-	struct resource *res =3D kmalloc(sizeof(struct resource), GFP_KERNEL);
+	struct resource *res =3D kzalloc(sizeof(struct resource), GFP_KERNEL);
=20
 	if (res) {
 		rio_init_dbell_res(res, start, end);
@@ -360,7 +360,7 @@ int rio_release_inb_dbell(struct rio_mport *mport, u16 =
start, u16 end)
 struct resource *rio_request_outb_dbell(struct rio_dev *rdev, u16 start,
 					u16 end)
 {
-	struct resource *res =3D kmalloc(sizeof(struct resource), GFP_KERNEL);
+	struct resource *res =3D kzalloc(sizeof(struct resource), GFP_KERNEL);
=20
 	if (res) {
 		rio_init_dbell_res(res, start, end);
diff --git a/drivers/sh/superhyway/superhyway.c b/drivers/sh/superhyway/sup=
erhyway.c
index 2d9e7f3..bb1fb771 100644
--- a/drivers/sh/superhyway/superhyway.c
+++ b/drivers/sh/superhyway/superhyway.c
@@ -66,7 +66,7 @@ int superhyway_add_device(unsigned long base, struct supe=
rhyway_device *sdev,
 	superhyway_read_vcr(dev, base, &dev->vcr);
=20
 	if (!dev->resource) {
-		dev->resource =3D kmalloc(sizeof(struct resource), GFP_KERNEL);
+		dev->resource =3D kzalloc(sizeof(struct resource), GFP_KERNEL);
 		if (!dev->resource) {
 			kfree(dev);
 			return -ENOMEM;

--
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From - Thu Nov 08 21:38:15 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v3 00/12] tty: serial: 8250: Fix checkpatch warnings
Date: Fri,  8 Jan 2016 11:21:56 +0100
Lines: 90
Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anton.wuerfel@fau.de>,
	Phillip Raffeck <phillip.raffe
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Hello Peter and Andy,

sorry for the long delay - we were very busy during christmas holidays.
We tried to incorporate your suggestions.

Regards,
Anton Wuerfel
Phillip Raffeck

This patch set fixes several checkpatch warnings in tty/serial/8250.

Patch 1/12:  Adds missing spaces (mainly to function/macro headers)
Patch 2/12:  Replace spaces with tabs wherever possible
Patch 3/12:  Slight patch which moves an opening curly brace
Patch 4/12:  Fixes multiline comment style
Patch 5/12:  Removes else blocks after return statements
Patch 6/12:  Slight patch which moves EXPORT_SYMBOL macro to correct position
Patch 7/12:  Slight patch which removes an unneccessary line continuation
Patch 8/12:  Slight patch which adds parentheses to a macro definition
Patch 9/12:  Merges user-visible multiline strings to a single line
Patch 10/12: Replace printk by dev_* or pr_* where appropriate
Patch 11/12: Remove orphaned debug macro
Patch 12/12: Fixes code indentation

Remaining checkpatch warnings after applying this patch series:

-line over 80 characters
	This error mostly occurs in serial_cs.c, which contains long-lined
	macro calls. However, splitting these calls into multiple lines would
	not increase readability.

-externs should be avoided in .c files
	This occurs in 8250_hp300.c. There is no corresponding header file
	the extern statement could be moved to. It could be moved to 8250.h
	but this would affect other .c files.

-Use #include <linux/*.h> instead of <asm/*.h>
	This warning has been left open for more experienced kernel hackers.
	This patch series is about style issues. We do not intend to alter
	the code behavior.
-struct uart_ops should normally be const
	This warning only occurs in 8250_core.c. The corresponding struct
	cannot be declared as const because it is altered in
	serial8250_isa_init_ports(). Maybe a checkpatch exception should
	be added for this particular warning.

-quoted string split across lines
	These strings were ignored because they otherwise would exceed
	80 characters in a single line. These particular strings use
	format specifiers, which break the ability to grep for them anyway.

Anton Wuerfel (12):
Phillip Raffeck (12):
  tty: serial: 8250: Fix whitespace errors
  tty: serial: 8250: Replace spaces with tabs
  tty: serial: 8250: Fix braces after struct
  tty: serial: 8250: Fix multiline comment style
  tty: serial: 8250: Remove else after return
  tty: serial: 8250: Move EXPORT_SYMBOL to function
  tty: serial: 8250: Fix line continuation warning
  tty: serial: 8250: Add parentheses to macro
  tty: serial: 8250: Fix multi-line strings
  tty: serial: 8250: Fix indentation warnings
  tty: serial: 8250: Suitably replace printk
  tty: serial: 8250: Remove SERIAL_DEBUG_PNP macro

 drivers/tty/serial/8250/8250_accent.c        |  2 +-
 drivers/tty/serial/8250/8250_acorn.c         |  2 +-
 drivers/tty/serial/8250/8250_boca.c          |  2 +-
 drivers/tty/serial/8250/8250_core.c          | 15 ++---
 drivers/tty/serial/8250/8250_exar_st16c554.c |  2 +-
 drivers/tty/serial/8250/8250_fourport.c      |  2 +-
 drivers/tty/serial/8250/8250_gsc.c           |  7 ++-
 drivers/tty/serial/8250/8250_hp300.c         | 26 ++++----
 drivers/tty/serial/8250/8250_hub6.c          |  2 +-
 drivers/tty/serial/8250/8250_ingenic.c       | 12 ++--
 drivers/tty/serial/8250/8250_pci.c           | 49 +++++++--------
 drivers/tty/serial/8250/8250_pnp.c           | 20 ++++---
 drivers/tty/serial/8250/8250_port.c          | 46 +++++++-------
 drivers/tty/serial/8250/serial_cs.c          | 89 +++++++++++++++-------------
 14 files changed, 145 insertions(+), 131 deletions(-)

-- 
1.9.1

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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v3 12/12] tty: serial: 8250: Fix indentation warnings
Date: Fri,  8 Jan 2016 11:22:08 +0100
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Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anton.wuerfel@fau.de>,
	Phillip Raffeck <phillip.raffe
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Checkpatch complains about incorrect indentation of switch/case stateme=
nts.
This patch fixes the corresponding warnings. Additionally some indentat=
ion
is changed to match the correct format specified in the Linux Kernel
Coding Style.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c  | 12 ++++++------
 drivers/tty/serial/8250/8250_pnp.c  |  4 ++--
 drivers/tty/serial/8250/8250_port.c |  6 +++---
 3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 09157fa..b0b47f9 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -841,12 +841,12 @@ static int pci_netmos_init(struct pci_dev *dev)
 		return 0;
=20
 	switch (dev->device) { /* FALLTHROUGH on all */
-		case PCI_DEVICE_ID_NETMOS_9904:
-		case PCI_DEVICE_ID_NETMOS_9912:
-		case PCI_DEVICE_ID_NETMOS_9922:
-		case PCI_DEVICE_ID_NETMOS_9900:
-			num_serial =3D pci_netmos_9900_numports(dev);
-			break;
+	case PCI_DEVICE_ID_NETMOS_9904:
+	case PCI_DEVICE_ID_NETMOS_9912:
+	case PCI_DEVICE_ID_NETMOS_9922:
+	case PCI_DEVICE_ID_NETMOS_9900:
+		num_serial =3D pci_netmos_9900_numports(dev);
+		break;
=20
 		default:
 			if (num_serial =3D=3D 0) {
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 5f852e8..ad9debb 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -427,8 +427,8 @@ static int check_resources(struct pnp_dev *dev)
 static int serial_pnp_guess_board(struct pnp_dev *dev)
 {
 	if (!(check_name(pnp_dev_name(dev)) ||
-		(dev->card && check_name(dev->card->name))))
-			return -ENODEV;
+	    (dev->card && check_name(dev->card->name))))
+		return -ENODEV;
=20
 	if (check_resources(dev))
 		return 0;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 343d050..da3b240 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2235,9 +2235,9 @@ static void serial8250_set_divisor(struct uart_po=
rt *port, unsigned int baud,
 		serial_port_out(port, 0x2, quot_frac);
 }
=20
-static unsigned int
-serial8250_get_baud_rate(struct uart_port *port, struct ktermios *term=
ios,
-			 struct ktermios *old)
+static unsigned int serial8250_get_baud_rate(struct uart_port *port,
+					     struct ktermios *termios,
+					     struct ktermios *old)
 {
 	unsigned int tolerance =3D port->uartclk / 100;
=20
--=20
1.9.1



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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v3 05/12] tty: serial: 8250: Remove else after return
Date: Fri,  8 Jan 2016 11:22:01 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anton.wuerfel@fau.de>,
	Phillip Raffeck <phillip.raffe
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes checkpatch warnings about unnecessary else blocks afte=
r
return statements.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 7f9f245..09157fa 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -805,10 +805,10 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
=20
 	pi =3D (c & 0xff);
=20
-	if (pi =3D=3D 2) {
+	if (pi =3D=3D 2)
 		return 1;
-	} else if ((pi =3D=3D 0) &&
-			   (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) {
+
+	if ((pi =3D=3D 0) && (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) =
{
 		/* two possibilities: 0x30ps encodes number of parallel and
 		 * serial ports, or 0x1000 indicates *something*. This is not
 		 * immediately obvious, since the 2s1p+4s configuration seems
@@ -816,12 +816,11 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
 		 * advertising the same function 3 as the 4s+2s1p config.
 		 */
 		sub_serports =3D dev->subsystem_device & 0xf;
-		if (sub_serports > 0) {
+		if (sub_serports > 0)
 			return sub_serports;
-		} else {
-			dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on a=
mbiguous config.\n");
-			return 0;
-		}
+
+		dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on am=
biguous config.\n");
+		return 0;
 	}
=20
 	moan_device("unknown NetMos/Mostech program interface", dev);
--=20
1.9.1

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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v3 04/12] tty: serial: 8250: Fix multiline comment style
Date: Fri,  8 Jan 2016 11:22:00 +0100
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Approved: news@gmane.org
Message-ID: <1452248528-14023-5-git-send-email-anton.wuerfel@fau.de>
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anton.wuerfel@fau.de>,
	Phillip Raffeck <phillip.raffe
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Checkpatch outputs some warnings about incorrect comment style,
which is fixed by this patch.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_ingenic.c | 12 ++++++++----
 drivers/tty/serial/8250/8250_pnp.c     |  6 ++++--
 drivers/tty/serial/8250/8250_port.c    | 31 ++++++++++++++++----------=
-----
 drivers/tty/serial/8250/serial_cs.c    | 26 +++++++++++++++++---------
 4 files changed, 45 insertions(+), 30 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_ingenic.c b/drivers/tty/seria=
l/8250/8250_ingenic.c
index 49394b4..086bd00 100644
--- a/drivers/tty/serial/8250/8250_ingenic.c
+++ b/drivers/tty/serial/8250/8250_ingenic.c
@@ -152,14 +152,18 @@ static void ingenic_uart_serial_out(struct uart_p=
ort *p, int offset, int value)
 		break;
=20
 	case UART_IER:
-		/* Enable receive timeout interrupt with the
-		 * receive line status interrupt */
+		/*
+		 * Enable receive timeout interrupt with the
+		 * receive line status interrupt
+		 */
 		value |=3D (value & 0x4) << 2;
 		break;
=20
 	case UART_MCR:
-		/* If we have enabled modem status IRQs we should enable modem
-		 * mode. */
+		/*
+		 * If we have enabled modem status IRQs we should enable modem
+		 * mode.
+		 */
 		ier =3D p->serial_in(p, UART_IER);
=20
 		if (ier & UART_IER_MSI)
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 658b392..ffa7354 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -367,8 +367,10 @@ static const struct pnp_device_id pnp_dev_table[] =
=3D {
 	{	"PNPCXXX",		UNKNOWN_DEV	},
 	/* More unknown PnP modems */
 	{	"PNPDXXX",		UNKNOWN_DEV	},
-	/* Winbond CIR port, should not be probed. We should keep track
-	   of it to prevent the legacy serial driver from probing it */
+	/*
+	 * Winbond CIR port, should not be probed. We should keep track
+	 * of it to prevent the legacy serial driver from probing it
+	 */
 	{	"WEC1022",		CIR_PORT	},
 	/*
 	 * SMSC IrCC SIR/FIR port, should not be probed by serial driver
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index f2e588e..99f709c 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -250,9 +250,11 @@ static const struct serial8250_config uart_config[=
] =3D {
 		.fcr		=3D UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
 		.flags		=3D UART_CAP_FIFO | UART_CAP_AFE,
 	},
-/* tx_loadsz is set to 63-bytes instead of 64-bytes to implement
-workaround of errata A-008006 which states that tx_loadsz should  be
-configured less than Maximum supported fifo bytes */
+	/*
+	 * tx_loadsz is set to 63-bytes instead of 64-bytes to implement
+	 * workaround of errata A-008006 which states that tx_loadsz should b=
e
+	 * configured less than Maximum supported fifo bytes
+	 */
 	[PORT_16550A_FSL64] =3D {
 		.name		=3D "16550A_FSL64",
 		.fifo_size	=3D 64,
@@ -1969,23 +1971,22 @@ int serial8250_do_startup(struct uart_port *por=
t)
=20
 	serial8250_set_mctrl(port, port->mctrl);
=20
-	/* Serial over Lan (SoL) hack:
-	   Intel 8257x Gigabit ethernet chips have a
-	   16550 emulation, to be used for Serial Over Lan.
-	   Those chips take a longer time than a normal
-	   serial device to signalize that a transmission
-	   data was queued. Due to that, the above test generally
-	   fails. One solution would be to delay the reading of
-	   iir. However, this is not reliable, since the timeout
-	   is variable. So, let's just don't test if we receive
-	   TX irq. This way, we'll never enable UART_BUG_TXEN.
+	/*
+	 * Serial over Lan (SoL) hack:
+	 * Intel 8257x Gigabit ethernet chips have a 16550 emulation, to be u=
sed
+	 * for Serial Over Lan.  Those chips take a longer time than a normal
+	 * serial device to signalize that a transmission data was queued. Du=
e
+	 * to that, the above test generally fails. One solution would be to
+	 * delay the reading of iir. However, this is not reliable, since the
+	 * timeout is variable. So, let's just don't test if we receive TX ir=
q.
+	 * This way, we'll never enable UART_BUG_TXEN.
 	 */
 	if (up->port.flags & UPF_NO_TXEN_TEST)
 		goto dont_test_tx_en;
=20
 	/*
-	 * Do a quick test to see if we receive an
-	 * interrupt when we enable the TX irq.
+	 * Do a quick test to see if we receive an interrupt when we enable t=
he
+	 * TX irq.
 	 */
 	serial_port_out(port, UART_IER, UART_IER_THRI);
 	lsr =3D serial_port_in(port, UART_LSR);
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 6d7a801..1f34867 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -441,16 +441,20 @@ static int simple_config(struct pcmcia_device *li=
nk)
 	struct serial_info *info =3D link->priv;
 	int i =3D -ENODEV, try;
=20
-	/* First pass: look for a config entry that looks normal.
-	 * Two tries: without IO aliases, then with aliases */
+	/*
+	 * First pass: look for a config entry that looks normal.
+	 * Two tries: without IO aliases, then with aliases
+	 */
 	link->config_flags |=3D CONF_AUTO_SET_VPP;
 	for (try =3D 0; try < 4; try++)
 		if (!pcmcia_loop_config(link, simple_config_check, &try))
 			goto found_port;
=20
-	/* Second pass: try to find an entry that isn't picky about
-	   its base address, then try to grab any standard serial port
-	   address, and finally try to get any free port. */
+	/*
+	 * Second pass: try to find an entry that isn't picky about
+	 * its base address, then try to grab any standard serial port
+	 * address, and finally try to get any free port.
+	 */
 	if (!pcmcia_loop_config(link, simple_config_check_notpicky, NULL))
 		goto found_port;
=20
@@ -480,8 +484,10 @@ static int multi_config_check(struct pcmcia_device=
 *p_dev, void *priv_data)
 	if (p_dev->resource[1]->end)
 		return -EINVAL;
=20
-	/* The quad port cards have bad CIS's, so just look for a
-	   window larger than 8 ports and assume it will be right */
+	/*
+	 * The quad port cards have bad CIS's, so just look for a
+	 * window larger than 8 ports and assume it will be right
+	 */
 	if (p_dev->resource[0]->end <=3D 8)
 		return -EINVAL;
=20
@@ -623,8 +629,10 @@ static int serial_config(struct pcmcia_device *lin=
k)
 			break;
 		}
=20
-	/* Another check for dual-serial cards: look for either serial or
-	   multifunction cards that ask for appropriate IO port ranges */
+	/*
+	 * Another check for dual-serial cards: look for either serial or
+	 * multifunction cards that ask for appropriate IO port ranges
+	 */
 	if ((info->multi =3D=3D 0) &&
 	    (link->has_func_id) &&
 	    (link->socket->pcmcia_pfc =3D=3D 0) &&
--=20
1.9.1



From - Thu Nov 08 21:38:16 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v3 10/12] tty: serial: 8250: Suitably replace printk
Date: Fri,  8 Jan 2016 11:22:06 +0100
Lines: 161
Approved: news@gmane.org
Message-ID: <1452248528-14023-11-git-send-email-anton.wuerfel@fau.de>
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	=?UTF-8?q?Anton=20W=C3=BCr
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46rom: Phillip Raffeck <phillip.raffeck@fau.de>

This patch replaces printk by the corresponding variant of dev_* in ord=
er to
fix checkpatch warnings. If no suitable device pointer is present, the
corresponding pr_* variant is used.

Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
v3: Use dev_* where possible as suggested by Andy
---
 drivers/tty/serial/8250/8250_core.c  |  5 ++---
 drivers/tty/serial/8250/8250_gsc.c   |  7 ++++---
 drivers/tty/serial/8250/8250_hp300.c | 19 ++++++++++---------
 drivers/tty/serial/8250/8250_port.c  |  3 +--
 4 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index b60b58b..d6b4906 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1094,9 +1094,8 @@ static int __init serial8250_init(void)
=20
 	serial8250_isa_init_ports();
=20
-	printk(KERN_INFO "Serial: 8250/16550 driver, "
-		"%d ports, IRQ sharing %sabled\n", nr_uarts,
-		share_irqs ? "en" : "dis");
+	pr_info("Serial: 8250/16550 driver, %d ports, IRQ sharing %sabled\n",
+		nr_uarts, share_irqs ? "en" : "dis");
=20
 #ifdef CONFIG_SPARC
 	ret =3D sunserial_register_minors(&serial8250_reg, UART_NR);
diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/82=
50/8250_gsc.c
index 2e3ea1a..b1e6ae9 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -42,7 +42,7 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
 		 * the user what they're missing.
 		 */
 		if (parisc_parent(dev)->id.hw_type !=3D HPHW_IOA)
-			printk(KERN_INFO
+			dev_info(&dev->dev,
 				"Serial: device 0x%llx not configured.\n"
 				"Enable support for Wax, Lasi, Asp or Dino.\n",
 				(unsigned long long)dev->hpa.start);
@@ -66,8 +66,9 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
=20
 	err =3D serial8250_register_8250_port(&uart);
 	if (err < 0) {
-		printk(KERN_WARNING
-			"serial8250_register_8250_port returned error %d\n", err);
+		dev_warn(&dev->dev,
+			"serial8250_register_8250_port returned error %d\n",
+			err);
 		iounmap(uart.port.membase);
 		return err;
 	}
diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index cf566bb..cc11a84 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -110,7 +110,7 @@ int __init hp300_setup_serial_console(void)
 	/* Check for APCI console */
 	if (scode =3D=3D 256) {
 #ifdef CONFIG_HPAPCI
-		printk(KERN_INFO "Serial console is HP APCI 1\n");
+		pr_info("Serial console is HP APCI 1\n");
=20
 		port.uartclk =3D HPAPCI_BAUD_BASE * 16;
 		port.mapbase =3D (FRODO_BASE + FRODO_APCI_OFFSET(1));
@@ -118,7 +118,7 @@ int __init hp300_setup_serial_console(void)
 		port.regshift =3D 2;
 		add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is APCI but support is disabled =
(CONFIG_HPAPCI)!\n");
+		pr_warn("Serial console is APCI but support is disabled (CONFIG_HPAP=
CI)!\n");
 		return 0;
 #endif
 	} else {
@@ -127,7 +127,7 @@ int __init hp300_setup_serial_console(void)
 		if (!pa)
 			return 0;
=20
-		printk(KERN_INFO "Serial console is HP DCA at select code %d\n", sco=
de);
+		pr_info("Serial console is HP DCA at select code %d\n", scode);
=20
 		port.uartclk =3D HPDCA_BAUD_BASE * 16;
 		port.mapbase =3D (pa + UART_OFFSET);
@@ -141,13 +141,13 @@ int __init hp300_setup_serial_console(void)
 		if (DIO_ID(pa + DIO_VIRADDRBASE) & 0x80)
 			add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is DCA but support is disabled (=
CONFIG_HPDCA)!\n");
+		pr_warn("Serial console is DCA but support is disabled (CONFIG_HPDCA=
)!\n");
 		return 0;
 #endif
 	}
=20
 	if (early_serial_setup(&port) < 0)
-		printk(KERN_WARNING "hp300_setup_serial_console(): early_serial_setu=
p() failed.\n");
+		pr_warn("hp300_setup_serial_console(): early_serial_setup() failed.\=
n");
 	return 0;
 }
 #endif /* CONFIG_SERIAL_8250_CONSOLE */
@@ -179,8 +179,9 @@ static int hpdca_init_one(struct dio_dev *d,
 	line =3D serial8250_register_8250_port(&uart);
=20
 	if (line < 0) {
-		printk(KERN_NOTICE "8250_hp300: register_serial() DCA scode %d"
-		       " irq %d failed\n", d->scode, uart.port.irq);
+		dev_notice(&dev->dev,
+			  "8250_hp300: register_serial() DCA scode %d irq %d failed\n",
+			  d->scode, uart.port.irq);
 		return -ENOMEM;
 	}
=20
@@ -260,8 +261,8 @@ static int __init hp300_8250_init(void)
 		line =3D serial8250_register_8250_port(&uart);
=20
 		if (line < 0) {
-			printk(KERN_NOTICE "8250_hp300: register_serial() APCI"
-			       " %d irq %d failed\n", i, uart.port.irq);
+			pr_notice("8250_hp300: register_serial() APCI %d irq %d failed\n",
+				  i, uart.port.irq);
 			kfree(port);
 			continue;
 		}
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 99f709c..343d050 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1222,8 +1222,7 @@ static void autoconfig(struct uart_8250_port *up)
 out_lock:
 	spin_unlock_irqrestore(&port->lock, flags);
 	if (up->capabilities !=3D old_capabilities) {
-		printk(KERN_WARNING
-		       "ttyS%d: detected caps %08x should be %08x\n",
+		pr_warn("ttyS%d: detected caps %08x should be %08x\n",
 		       serial_index(port), old_capabilities,
 		       up->capabilities);
 	}
--=20
1.9.1



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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v3 11/12] tty: serial: 8250: Remove SERIAL_DEBUG_PNP macro
Date: Fri,  8 Jan 2016 11:22:07 +0100
Lines: 49
Approved: news@gmane.org
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
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	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	=?UTF-8?q?Anton=20W=C3=BCr
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46rom: Phillip Raffeck <phillip.raffeck@fau.de>

This patch removes the macro SERIAL_DEBUG_PNP, which is used to enable =
debugging
at compile time. As SERIAL_DEBUG_PNP is an orphan, the corresponding #i=
fdef is
removed. To keep the ability to enable debugging at compile time, the c=
all to
printk(KERN_DEBUG ...) is replaced by a corresponding call to dev_dbg()=
, which
is configurable via CONFIG_DYNAMIC_DEBUG.

Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
v3: Remove orphaned macro as suggested by Andy
---
 drivers/tty/serial/8250/8250_pnp.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index ffa7354..5f852e8 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -464,11 +464,11 @@ serial_pnp_probe(struct pnp_dev *dev, const struc=
t pnp_device_id *dev_id)
 	} else
 		return -ENODEV;
=20
-#ifdef SERIAL_DEBUG_PNP
-	printk(KERN_DEBUG
-		"Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
-		       uart.port.iobase, uart.port.mapbase, uart.port.irq, uart.port=
=2Eiotype);
-#endif
+	dev_debug(&dev->dev,
+		 "Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
+		 uart.port.iobase, uart.port.mapbase,
+		 uart.port.irq, uart.port.iotype);
+
 	if (flags & CIR_PORT) {
 		uart.port.flags |=3D UPF_FIXED_PORT | UPF_FIXED_TYPE;
 		uart.port.type =3D PORT_8250_CIR;
--=20
1.9.1



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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v3 09/12] tty: serial: 8250: Fix multi-line strings
Date: Fri,  8 Jan 2016 11:22:05 +0100
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	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
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	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
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	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
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Merged user-visible multi-line strings into a single line according to =
the
Linux Kernel Coding Style, which allows user-visible strings to exceed =
the
maximum line length of 80 characters. The main reason for this is to
facilitate grepping for these strings.
However, some strings were ignored in this patch, because the use of
format specifiers breaks the ability to grep anyway.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 3 +--
 drivers/tty/serial/8250/serial_cs.c | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index d042ad5..b60b58b 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1173,8 +1173,7 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
 module_param(share_irqs, uint, 0644);
-MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices"
-	" (unsafe)");
+MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices (unsafe)");
=20
 module_param(nr_uarts, uint, 0644);
 MODULE_PARM_DESC(nr_uarts, "Maximum number of UARTs supported. (1-" __=
MODULE_STRING(CONFIG_SERIAL_8250_NR_UARTS) ")");
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 1f34867..1ab6bfc 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -533,8 +533,7 @@ static int multi_config(struct pcmcia_device *link)
 		info->multi =3D 2;
 		if (pcmcia_loop_config(link, multi_config_check_notpicky,
 				       &base2)) {
-			dev_warn(&link->dev, "no usable port range "
-			       "found, giving up\n");
+			dev_warn(&link->dev, "no usable port range found, giving up\n");
 			return -ENODEV;
 		}
 	}
--=20
1.9.1

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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v3 08/12] tty: serial: 8250: Add parentheses to macro
Date: Fri,  8 Jan 2016 11:22:04 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
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	Peter Hurley <peter@hurleysoftware.com>,
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	Qipeng Zha <qipeng.zha@intel.com>,
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	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
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	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
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	Phillip Raffeck <phillip.raffe
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes a checkpatch warning caused by missing parentheses
in the definition of a macro.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 15082ae..d042ad5 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -686,7 +686,7 @@ static int __init univ8250_console_init(void)
 }
 console_initcall(univ8250_console_init);
=20
-#define SERIAL8250_CONSOLE	&univ8250_console
+#define SERIAL8250_CONSOLE	(&univ8250_console)
 #else
 #define SERIAL8250_CONSOLE	NULL
 #endif
--=20
1.9.1



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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v3 07/12] tty: serial: 8250: Fix line continuation warning
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	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anton.wuerfel@fau.de>,
	Phillip Raffeck <phillip.raffe
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46ixed checkpatch warning about an unnecessary line continuation in a
multi-line variable assignment.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 5e1b464..cf566bb 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -248,8 +248,8 @@ static int __init hp300_8250_init(void)
=20
 		/* Memory mapped I/O */
 		uart.port.iotype =3D UPIO_MEM;
-		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ \
-			      | UPF_BOOT_AUTOCONF;
+		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ
+				| UPF_BOOT_AUTOCONF;
 		/* XXX - no interrupt support yet */
 		uart.port.irq =3D 0;
 		uart.port.uartclk =3D HPAPCI_BAUD_BASE * 16;
--=20
1.9.1

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From - Thu Nov 08 21:38:16 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v3 06/12] tty: serial: 8250: Move EXPORT_SYMBOL to function
Date: Fri,  8 Jan 2016 11:22:02 +0100
Lines: 46
Approved: news@gmane.org
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	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anton.wuerfel@fau.de>,
	Phillip Raffeck <phillip.raffe
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch moves EXPORT_SYMBOL macros directly after the definition of
the corresponding symbol to remove checkpatch warnings.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 3912646..15082ae 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -763,6 +763,7 @@ void serial8250_suspend_port(int line)
=20
 	uart_suspend_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_suspend_port);
=20
 /**
  *	serial8250_resume_port - resume one serial port
@@ -788,6 +789,7 @@ void serial8250_resume_port(int line)
 	}
 	uart_resume_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_resume_port);
=20
 /*
  * Register a set of serial devices attached to a platform device.  Th=
e
@@ -1167,9 +1169,6 @@ static void __exit serial8250_exit(void)
 module_init(serial8250_init);
 module_exit(serial8250_exit);
=20
-EXPORT_SYMBOL(serial8250_suspend_port);
-EXPORT_SYMBOL(serial8250_resume_port);
-
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v3 03/12] tty: serial: 8250: Fix braces after struct
Date: Fri,  8 Jan 2016 11:21:59 +0100
Lines: 29
Approved: news@gmane.org
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	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anton.wuerfel@fau.de>,
	Phillip Raffeck <phillip.raffe
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes a checkpatch warning by moving an opening curly brace
to its correct position.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 2891958..5e1b464 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -24,8 +24,7 @@
 #endif
=20
 #ifdef CONFIG_HPAPCI
-struct hp300_port
-{
+struct hp300_port {
 	struct hp300_port *next;	/* next port */
 	int line;			/* line (tty) number */
 };
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v3 02/12] tty: serial: 8250: Replace spaces with tabs
Date: Fri,  8 Jan 2016 11:21:58 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anton.wuerfel@fau.de>,
	Phillip Raffeck <phillip.raffe
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Indentation is changed to match the correct format of using tabs instea=
d
of spaces wherever possible.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c  | 12 ++++++------
 drivers/tty/serial/8250/8250_port.c |  4 ++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index ccf43cb..7f9f245 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -721,7 +721,7 @@ static int pci_ni8430_init(struct pci_dev *dev)
 	 */
 	pcibios_resource_to_bus(dev->bus, &region, &dev->resource[bar]);
 	device_window =3D ((region.start + MITE_IOWBSR1_WIN_OFFSET) & 0xfffff=
f00)
-	                | MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
+			| MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
 	writel(device_window, p + MITE_IOWBSR1);
=20
 	/* Set window access to go to RAMSEL IO address space */
@@ -1763,7 +1763,7 @@ xr17v35x_has_slave(struct serial_private *priv)
 	const int dev_id =3D priv->dev->device;
=20
 	return ((dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V4358) ||
-	        (dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
+		(dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
 }
=20
 static int
@@ -1863,8 +1863,8 @@ pci_fastcom335_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch353_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16550A;
@@ -1873,8 +1873,8 @@ pci_wch_ch353_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch38x_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16850;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 7f3bd7b..f2e588e 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -52,7 +52,7 @@
 #define DEBUG_AUTOCONF(fmt...)	do { } while (0)
 #endif
=20
-#define BOTH_EMPTY 	(UART_LSR_TEMT | UART_LSR_THRE)
+#define BOTH_EMPTY	(UART_LSR_TEMT | UART_LSR_THRE)
=20
 /*
  * Here we define the default xmit fifo size used for each type of UAR=
T.
@@ -2254,7 +2254,7 @@ serial8250_get_baud_rate(struct uart_port *port, =
struct ktermios *termios,
=20
 void
 serial8250_do_set_termios(struct uart_port *port, struct ktermios *ter=
mios,
-		          struct ktermios *old)
+			  struct ktermios *old)
 {
 	struct uart_8250_port *up =3D up_to_u8250p(port);
 	unsigned char cval;
--=20
1.9.1

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Path: news.gmane.org!not-for-mail
From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v3 01/12] tty: serial: 8250: Fix whitespace errors
Date: Fri,  8 Jan 2016 11:21:57 +0100
Lines: 359
Approved: news@gmane.org
Message-ID: <1452248528-14023-2-git-send-email-anton.wuerfel@fau.de>
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Anton Wuerfel <anton.wuerfel@fau.de>,
	Phillip Raffeck <phillip.raffe
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Xref: news.gmane.org gmane.linux.kernel:2121667 gmane.linux.ports.parisc:26320
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2121667>

This patch fixes whitespace errors reported by checkpatch to increase
readability. Main focus is on missing spaces after commas in
function headers and macros (like foo,bar edited to foo, bar).

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_accent.c        |  2 +-
 drivers/tty/serial/8250/8250_acorn.c         |  2 +-
 drivers/tty/serial/8250/8250_boca.c          |  2 +-
 drivers/tty/serial/8250/8250_exar_st16c554.c |  2 +-
 drivers/tty/serial/8250/8250_fourport.c      |  2 +-
 drivers/tty/serial/8250/8250_hub6.c          |  2 +-
 drivers/tty/serial/8250/8250_pci.c           | 10 +++--
 drivers/tty/serial/8250/8250_port.c          |  2 +
 drivers/tty/serial/8250/serial_cs.c          | 60 ++++++++++++++------=
--------
 9 files changed, 44 insertions(+), 40 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_accent.c b/drivers/tty/serial=
/8250/8250_accent.c
index 34b51c6..c480729 100644
--- a/drivers/tty/serial/8250/8250_accent.c
+++ b/drivers/tty/serial/8250/8250_accent.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
+#define PORT(_base, _irq)				\
 	{						\
 		.iobase		=3D _base,		\
 		.irq		=3D _irq,			\
diff --git a/drivers/tty/serial/8250/8250_acorn.c b/drivers/tty/serial/=
8250/8250_acorn.c
index 549aa07..402dfdd 100644
--- a/drivers/tty/serial/8250/8250_acorn.c
+++ b/drivers/tty/serial/8250/8250_acorn.c
@@ -70,7 +70,7 @@ serial_card_probe(struct expansion_card *ec, const st=
ruct ecard_id *id)
 	uart.port.regshift	=3D 2;
 	uart.port.dev	=3D &ec->dev;
=20
-	for (i =3D 0; i < info->num_ports; i ++) {
+	for (i =3D 0; i < info->num_ports; i++) {
 		uart.port.membase =3D info->vaddr + type->offset[i];
 		uart.port.mapbase =3D bus_addr + type->offset[i];
=20
diff --git a/drivers/tty/serial/8250/8250_boca.c b/drivers/tty/serial/8=
250/8250_boca.c
index d125dc1..e42a5b5 100644
--- a/drivers/tty/serial/8250/8250_boca.c
+++ b/drivers/tty/serial/8250/8250_boca.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
+#define PORT(_base, _irq)				\
 	{						\
 		.iobase		=3D _base,		\
 		.irq		=3D _irq,			\
diff --git a/drivers/tty/serial/8250/8250_exar_st16c554.c b/drivers/tty=
/serial/8250/8250_exar_st16c554.c
index bf53aab..999f2d3 100644
--- a/drivers/tty/serial/8250/8250_exar_st16c554.c
+++ b/drivers/tty/serial/8250/8250_exar_st16c554.c
@@ -13,7 +13,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
+#define PORT(_base, _irq)				\
 	{						\
 		.iobase		=3D _base,		\
 		.irq		=3D _irq,			\
diff --git a/drivers/tty/serial/8250/8250_fourport.c b/drivers/tty/seri=
al/8250/8250_fourport.c
index be15826..9a04a8a 100644
--- a/drivers/tty/serial/8250/8250_fourport.c
+++ b/drivers/tty/serial/8250/8250_fourport.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)						\
+#define PORT(_base, _irq)						\
 	{								\
 		.iobase		=3D _base,				\
 		.irq		=3D _irq,					\
diff --git a/drivers/tty/serial/8250/8250_hub6.c b/drivers/tty/serial/8=
250/8250_hub6.c
index a5c778e..27124e2 100644
--- a/drivers/tty/serial/8250/8250_hub6.c
+++ b/drivers/tty/serial/8250/8250_hub6.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define HUB6(card,port)							\
+#define HUB6(card, port)						\
 	{								\
 		.iobase		=3D 0x302,				\
 		.irq		=3D 3,					\
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 4097f3f..ccf43cb 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -850,7 +850,7 @@ static int pci_netmos_init(struct pci_dev *dev)
 			break;
=20
 		default:
-			if (num_serial =3D=3D 0 ) {
+			if (num_serial =3D=3D 0) {
 				moan_device("unknown NetMos/Mostech device", dev);
 			}
 	}
@@ -1198,8 +1198,9 @@ static int pci_quatech_has_qmcr(struct uart_8250_=
port *port)
=20
 static int pci_quatech_test(struct uart_8250_port *port)
 {
-	u8 reg;
-	u8 qopr =3D pci_quatech_rqopr(port);
+	u8 reg, qopr;
+
+	qopr =3D pci_quatech_rqopr(port);
 	pci_quatech_wqopr(port, qopr & QPCR_TEST_FOR1);
 	reg =3D pci_quatech_rqopr(port) & 0xC0;
 	if (reg !=3D QPCR_TEST_GET1)
@@ -1286,6 +1287,7 @@ static int pci_quatech_init(struct pci_dev *dev)
 		unsigned long base =3D pci_resource_start(dev, 0);
 		if (base) {
 			u32 tmp;
+
 			outl(inl(base + 0x38) | 0x00002000, base + 0x38);
 			tmp =3D inl(base + 0x3c);
 			outl(tmp | 0x01000000, base + 0x3c);
@@ -4502,7 +4504,7 @@ static struct pci_device_id serial_pci_tbl[] =3D =
{
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b0_bt_2_921600 },
 	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI958,
-		PCI_ANY_ID , PCI_ANY_ID, 0, 0,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b2_8_1152000 },
=20
 	/*
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 52d82d2..7f3bd7b 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1327,6 +1327,7 @@ static void serial8250_start_tx(struct uart_port =
*port)
=20
 		if (up->bugs & UART_BUG_TXEN) {
 			unsigned char lsr;
+
 			lsr =3D serial_in(up, UART_LSR);
 			up->lsr_saved_flags |=3D lsr & LSR_SAVE_FLAGS;
 			if (lsr & UART_LSR_THRE)
@@ -1734,6 +1735,7 @@ static void wait_for_xmitr(struct uart_8250_port =
*up, int bits)
 	/* Wait up to 1s for flow control if necessary */
 	if (up->port.flags & UPF_CONS_FLOW) {
 		unsigned int tmout;
+
 		for (tmout =3D 1000000; tmout; tmout--) {
 			unsigned int msr =3D serial_in(up, UART_MSR);
 			up->msr_saved_flags |=3D msr & MSR_SAVE_FLAGS;
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 4d180c9..6d7a801 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -28,7 +28,7 @@
     and other provisions required by the GPL.  If you do not delete
     the provisions above, a recipient may use your version of this
     file under either the MPL or the GPL.
-   =20
+
 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
=20
 #include <linux/module.h>
@@ -257,7 +257,7 @@ static const struct serial_quirk quirks[] =3D {
 };
=20
=20
-static int serial_config(struct pcmcia_device * link);
+static int serial_config(struct pcmcia_device *link);
=20
=20
 static void serial_remove(struct pcmcia_device *link)
@@ -309,7 +309,7 @@ static int serial_probe(struct pcmcia_device *link)
 	dev_dbg(&link->dev, "serial_attach()\n");
=20
 	/* Create new serial device */
-	info =3D kzalloc(sizeof (*info), GFP_KERNEL);
+	info =3D kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 	info->p_dev =3D link;
@@ -339,7 +339,7 @@ static void serial_detach(struct pcmcia_device *lin=
k)
=20
 /*=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
=20
-static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo * info,
+static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo *info,
 			unsigned int iobase, int irq)
 {
 	struct uart_8250_port uart;
@@ -600,7 +600,7 @@ static int serial_check_for_multi(struct pcmcia_dev=
ice *p_dev,  void *priv_data)
 }
=20
=20
-static int serial_config(struct pcmcia_device * link)
+static int serial_config(struct pcmcia_device *link)
 {
 	struct serial_info *info =3D link->priv;
 	int i;
@@ -701,7 +701,7 @@ static const struct pcmcia_device_id serial_ids[] =3D=
 {
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "LINKSYS", "PCMLM336", 0xf7cb0b07, 0x7=
a821b58),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf5=
10db04, 0x52d21e1e),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MICRO RESEARCH", "COMBO-L/M-336", 0xb=
2ced065, 0x3ced0555),
-	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001" ,0x18df0ba0 ,0x831=
b1064),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001", 0x18df0ba0, 0x831=
b1064),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Diamonds=
 Modem+Ethernet", 0xc2f80cd, 0x656947b9),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Hearts M=
odem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "PCMCIAs", "ComboCard", 0xdcfe12d3, 0x=
cd8906cc),
@@ -797,30 +797,30 @@ static const struct pcmcia_device_id serial_ids[]=
 =3D {
 	PCMCIA_DEVICE_CIS_PROD_ID123("ADVANTECH", "COMpad-32/85", "1.0", 0x96=
913a85, 0x8fbe92ae, 0x0877b627, "cis/COMpad2.cis"),
 	PCMCIA_DEVICE_CIS_PROD_ID2("RS-COM 2P", 0xad20b156, "cis/RS-COM-2P.ci=
s"),
 	PCMCIA_DEVICE_CIS_MANF_CARD(0x0013, 0x0000, "cis/GLOBETROTTER.cis"),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100  1.00.",0x19ca78af,0xf964f42b),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100",0x19ca78af,0x71d98e83),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232  1.00.",0x19ca78af,0x69fb7490),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232",0x19ca78af,0xb6bc0235),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232",0x63f2e0bd,0xb9e175d3),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232-5",0x63f2e0bd,0xfce33442),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232",0x3beb8cf2,0x171e=
7190),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232-5",0x3beb8cf2,0x20=
da4262),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF428",0x3beb8cf2,0xea5d=
d57d),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF500",0x3beb8cf2,0xd772=
55fa),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: IC232",0x3beb8cf2,0x6a70=
9903),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: SL232",0x3beb8cf2,0x1843=
0676),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: XL232",0x3beb8cf2,0x6f93=
3767),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial+Parallel Port: SP230",0x=
3beb8cf2,0xdb9e58bc),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(2,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(3,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100  1.00.", 0x19ca78af, 0xf964f42b),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100", 0x19ca78af, 0x71d98e83),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232  1.00.", 0x19ca78af, 0x69fb7490),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232", 0x19ca78af, 0xb6bc0235),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232", 0x63f2e0bd, 0xb9e175d3),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232-5", 0x63f2e0bd, 0xfce33442),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232", 0x3beb8cf2, 0x1=
71e7190),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232-5", 0x3beb8cf2, 0=
x20da4262),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF428", 0x3beb8cf2, 0xe=
a5dd57d),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF500", 0x3beb8cf2, 0xd=
77255fa),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: IC232", 0x3beb8cf2, 0x6=
a709903),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: SL232", 0x3beb8cf2, 0x1=
8430676),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: XL232", 0x3beb8cf2, 0x6=
f933767),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial+Parallel Port: SP230",=
 0x3beb8cf2, 0xdb9e58bc),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(2, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(3, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
 	PCMCIA_DEVICE_MANF_CARD(0x0279, 0x950b),
 	/* too generic */
 	/* PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0160, 0x0002), */
--=20
1.9.1



From - Thu Nov 08 21:38:16 2018
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From: kbuild test robot <lkp@intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v3 11/12] tty: serial: 8250: Remove SERIAL_DEBUG_PNP macro
Date: Fri, 8 Jan 2016 18:52:53 +0800
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Cc: kbuild-all@01.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
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	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
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--+HP7ph2BbKc20aGI
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

Hi Phillip,

[auto build test ERROR on tty/tty-testing]
[also build test ERROR on v4.4-rc8 next-20160108]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Anton-Wuerfel/tty-serial-8250-Fix-checkpatch-warnings/20160108-182908
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: x86_64-randconfig-i0-201601 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/tty/serial/8250/8250_pnp.c: In function 'serial_pnp_probe':
>> drivers/tty/serial/8250/8250_pnp.c:467:2: error: implicit declaration of function 'dev_debug' [-Werror=implicit-function-declaration]
     dev_debug(&dev->dev,
     ^
   cc1: some warnings being treated as errors

vim +/dev_debug +467 drivers/tty/serial/8250/8250_pnp.c

   461			uart.port.mapbase = pnp_mem_start(dev, 0);
   462			uart.port.iotype = UPIO_MEM;
   463			uart.port.flags = UPF_IOREMAP;
   464		} else
   465			return -ENODEV;
   466	
 > 467		dev_debug(&dev->dev,
   468			 "Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
   469			 uart.port.iobase, uart.port.mapbase,
   470			 uart.port.irq, uart.port.iotype);

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

--+HP7ph2BbKc20aGI
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Subject: Re: [PATCH v3 10/12] tty: serial: 8250: Suitably replace printk
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Hi Phillip,

[auto build test ERROR on tty/tty-testing]
[also build test ERROR on v4.4-rc8 next-20160108]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Anton-Wuerfel/tty-serial-8250-Fix-checkpatch-warnings/20160108-182908
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: m68k-allyesconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=m68k 

All errors (new ones prefixed by >>):

   drivers/tty/serial/8250/8250_hp300.c: In function 'hpdca_init_one':
>> drivers/tty/serial/8250/8250_hp300.c:182:15: error: 'dev' undeclared (first use in this function)
      dev_notice(&dev->dev,
                  ^
   drivers/tty/serial/8250/8250_hp300.c:182:15: note: each undeclared identifier is reported only once for each function it appears in

vim +/dev +182 drivers/tty/serial/8250/8250_hp300.c

   176		uart.port.membase = (char *)(uart.port.mapbase + DIO_VIRADDRBASE);
   177		uart.port.regshift = 1;
   178		uart.port.dev = &d->dev;
   179		line = serial8250_register_8250_port(&uart);
   180	
   181		if (line < 0) {
 > 182			dev_notice(&dev->dev,
   183				  "8250_hp300: register_serial() DCA scode %d irq %d failed\n",
   184				  d->scode, uart.port.irq);
   185			return -ENOMEM;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From - Thu Nov 08 21:38:17 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v4 00/13] tty: serial: 8250: Fix checkpatch warnings
Date: Fri,  8 Jan 2016 18:43:46 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
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	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	phillip.raffeck@fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Hello Peter and Andy,

sorry for the long delay - we were very busy during christmas holidays.
We tried to incorporate your suggestions.

We apologize for syntax errors in v3-patchset. While fixing these issues
we added another patch to the series, so we decided to send in a new patchset
instead of fixing the damaged patch files in v3.

Regards,
Anton Wuerfel
Phillip Raffeck

This patch set fixes several checkpatch warnings in tty/serial/8250.

Patch 1/13:  Adds missing spaces (mainly to function/macro headers)
Patch 2/13:  Replace spaces with tabs wherever possible
Patch 3/13:  Slight patch which moves an opening curly brace
Patch 4/13:  Fixes multiline comment style
Patch 5/13:  Removes else blocks after return statements
Patch 6/13:  Slight patch which moves EXPORT_SYMBOL macro to correct position
Patch 7/13:  Slight patch which removes an unneccessary line continuation
Patch 8/13:  Slight patch which adds parentheses to a macro definition
Patch 9/13:  Merges user-visible multiline strings to a single line
Patch 10/13: Replace printk by dev_* or pr_* where appropriate
Patch 11/13: Remove orphaned debug macro
Patch 12/13: Fix warnings in dev_dbg by adding two casts
Patch 13/13: Fixes code indentation

Remaining checkpatch warnings after applying this patch series:

-line over 80 characters
	This error mostly occurs in serial_cs.c, which contains long-lined
	macro calls. However, splitting these calls into multiple lines would
	not increase readability.

-externs should be avoided in .c files
	This occurs in 8250_hp300.c. There is no corresponding header file
	the extern statement could be moved to. It could be moved to 8250.h
	but this would affect other .c files.

-Use #include <linux/*.h> instead of <asm/*.h>
	This warning has been left open for more experienced kernel hackers.
	This patch series is about style issues. We do not intend to alter
	the code behavior.
-struct uart_ops should normally be const
	This warning only occurs in 8250_core.c. The corresponding struct
	cannot be declared as const because it is altered in
	serial8250_isa_init_ports(). Maybe a checkpatch exception should
	be added for this particular warning.

-quoted string split across lines
	These strings were ignored because they otherwise would exceed
	80 characters in a single line. These particular strings use
	format specifiers, which break the ability to grep for them anyway.

Anton Wuerfel (13):
Phillip Raffeck (13):
  tty: serial: 8250: Fix whitespace errors
  tty: serial: 8250: Replace spaces with tabs
  tty: serial: 8250: Fix braces after struct
  tty: serial: 8250: Fix multiline comment style
  tty: serial: 8250: Remove else after return
  tty: serial: 8250: Move EXPORT_SYMBOL to function
  tty: serial: 8250: Fix line continuation warning
  tty: serial: 8250: Add parentheses to macro
  tty: serial: 8250: Fix multi-line strings
  tty: serial: 8250: Removed warning in debug output
  tty: serial: 8250: Fix indentation warnings
  tty: serial: 8250: Suitably replace printk
  tty: serial: 8250: Remove SERIAL_DEBUG_PNP macro

 drivers/tty/serial/8250/8250_accent.c        |  2 +-
 drivers/tty/serial/8250/8250_acorn.c         |  2 +-
 drivers/tty/serial/8250/8250_boca.c          |  2 +-
 drivers/tty/serial/8250/8250_core.c          | 15 ++---
 drivers/tty/serial/8250/8250_exar_st16c554.c |  2 +-
 drivers/tty/serial/8250/8250_fourport.c      |  2 +-
 drivers/tty/serial/8250/8250_gsc.c           |  7 ++-
 drivers/tty/serial/8250/8250_hp300.c         | 26 ++++----
 drivers/tty/serial/8250/8250_hub6.c          |  2 +-
 drivers/tty/serial/8250/8250_ingenic.c       | 12 ++--
 drivers/tty/serial/8250/8250_pci.c           | 49 +++++++--------
 drivers/tty/serial/8250/8250_pnp.c           | 20 ++++---
 drivers/tty/serial/8250/8250_port.c          | 46 +++++++-------
 drivers/tty/serial/8250/serial_cs.c          | 89 +++++++++++++++-------------
 14 files changed, 145 insertions(+), 131 deletions(-)

-- 
1.9.1

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From - Thu Nov 08 21:38:17 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v4 02/13] tty: serial: 8250: Replace spaces with tabs
Date: Fri,  8 Jan 2016 18:43:48 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	phillip.raffeck@fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Indentation is changed to match the correct format of using tabs instea=
d
of spaces wherever possible.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c  | 12 ++++++------
 drivers/tty/serial/8250/8250_port.c |  4 ++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index ccf43cb..7f9f245 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -721,7 +721,7 @@ static int pci_ni8430_init(struct pci_dev *dev)
 	 */
 	pcibios_resource_to_bus(dev->bus, &region, &dev->resource[bar]);
 	device_window =3D ((region.start + MITE_IOWBSR1_WIN_OFFSET) & 0xfffff=
f00)
-	                | MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
+			| MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
 	writel(device_window, p + MITE_IOWBSR1);
=20
 	/* Set window access to go to RAMSEL IO address space */
@@ -1763,7 +1763,7 @@ xr17v35x_has_slave(struct serial_private *priv)
 	const int dev_id =3D priv->dev->device;
=20
 	return ((dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V4358) ||
-	        (dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
+		(dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
 }
=20
 static int
@@ -1863,8 +1863,8 @@ pci_fastcom335_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch353_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16550A;
@@ -1873,8 +1873,8 @@ pci_wch_ch353_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch38x_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16850;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 7f3bd7b..f2e588e 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -52,7 +52,7 @@
 #define DEBUG_AUTOCONF(fmt...)	do { } while (0)
 #endif
=20
-#define BOTH_EMPTY 	(UART_LSR_TEMT | UART_LSR_THRE)
+#define BOTH_EMPTY	(UART_LSR_TEMT | UART_LSR_THRE)
=20
 /*
  * Here we define the default xmit fifo size used for each type of UAR=
T.
@@ -2254,7 +2254,7 @@ serial8250_get_baud_rate(struct uart_port *port, =
struct ktermios *termios,
=20
 void
 serial8250_do_set_termios(struct uart_port *port, struct ktermios *ter=
mios,
-		          struct ktermios *old)
+			  struct ktermios *old)
 {
 	struct uart_8250_port *up =3D up_to_u8250p(port);
 	unsigned char cval;
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v4 10/13] tty: serial: 8250: Suitably replace printk
Date: Fri,  8 Jan 2016 18:43:56 +0100
Lines: 165
Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	phillip.raffeck@fau.de,
	=?UTF-8?q?Anton=20W=C3=BCrfel?= <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46rom: Phillip Raffeck <phillip.raffeck@fau.de>

This patch replaces printk by the corresponding variant of dev_* in ord=
er
to fix checkpatch warnings. If no suitable device pointer is present, t=
he
corresponding pr_* variant is used.

Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c  |  5 ++---
 drivers/tty/serial/8250/8250_gsc.c   |  7 ++++---
 drivers/tty/serial/8250/8250_hp300.c | 19 ++++++++++---------
 drivers/tty/serial/8250/8250_port.c  |  3 +--
 4 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index b60b58b..d6b4906 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1094,9 +1094,8 @@ static int __init serial8250_init(void)
=20
 	serial8250_isa_init_ports();
=20
-	printk(KERN_INFO "Serial: 8250/16550 driver, "
-		"%d ports, IRQ sharing %sabled\n", nr_uarts,
-		share_irqs ? "en" : "dis");
+	pr_info("Serial: 8250/16550 driver, %d ports, IRQ sharing %sabled\n",
+		nr_uarts, share_irqs ? "en" : "dis");
=20
 #ifdef CONFIG_SPARC
 	ret =3D sunserial_register_minors(&serial8250_reg, UART_NR);
diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/82=
50/8250_gsc.c
index 2e3ea1a..b1e6ae9 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -42,7 +42,7 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
 		 * the user what they're missing.
 		 */
 		if (parisc_parent(dev)->id.hw_type !=3D HPHW_IOA)
-			printk(KERN_INFO
+			dev_info(&dev->dev,
 				"Serial: device 0x%llx not configured.\n"
 				"Enable support for Wax, Lasi, Asp or Dino.\n",
 				(unsigned long long)dev->hpa.start);
@@ -66,8 +66,9 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
=20
 	err =3D serial8250_register_8250_port(&uart);
 	if (err < 0) {
-		printk(KERN_WARNING
-			"serial8250_register_8250_port returned error %d\n", err);
+		dev_warn(&dev->dev,
+			"serial8250_register_8250_port returned error %d\n",
+			err);
 		iounmap(uart.port.membase);
 		return err;
 	}
diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index cf566bb..4aaa24c 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -110,7 +110,7 @@ int __init hp300_setup_serial_console(void)
 	/* Check for APCI console */
 	if (scode =3D=3D 256) {
 #ifdef CONFIG_HPAPCI
-		printk(KERN_INFO "Serial console is HP APCI 1\n");
+		pr_info("Serial console is HP APCI 1\n");
=20
 		port.uartclk =3D HPAPCI_BAUD_BASE * 16;
 		port.mapbase =3D (FRODO_BASE + FRODO_APCI_OFFSET(1));
@@ -118,7 +118,7 @@ int __init hp300_setup_serial_console(void)
 		port.regshift =3D 2;
 		add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is APCI but support is disabled =
(CONFIG_HPAPCI)!\n");
+		pr_warn("Serial console is APCI but support is disabled (CONFIG_HPAP=
CI)!\n");
 		return 0;
 #endif
 	} else {
@@ -127,7 +127,7 @@ int __init hp300_setup_serial_console(void)
 		if (!pa)
 			return 0;
=20
-		printk(KERN_INFO "Serial console is HP DCA at select code %d\n", sco=
de);
+		pr_info("Serial console is HP DCA at select code %d\n", scode);
=20
 		port.uartclk =3D HPDCA_BAUD_BASE * 16;
 		port.mapbase =3D (pa + UART_OFFSET);
@@ -141,13 +141,13 @@ int __init hp300_setup_serial_console(void)
 		if (DIO_ID(pa + DIO_VIRADDRBASE) & 0x80)
 			add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is DCA but support is disabled (=
CONFIG_HPDCA)!\n");
+		pr_warn("Serial console is DCA but support is disabled (CONFIG_HPDCA=
)!\n");
 		return 0;
 #endif
 	}
=20
 	if (early_serial_setup(&port) < 0)
-		printk(KERN_WARNING "hp300_setup_serial_console(): early_serial_setu=
p() failed.\n");
+		pr_warn("hp300_setup_serial_console(): early_serial_setup() failed.\=
n");
 	return 0;
 }
 #endif /* CONFIG_SERIAL_8250_CONSOLE */
@@ -179,8 +179,9 @@ static int hpdca_init_one(struct dio_dev *d,
 	line =3D serial8250_register_8250_port(&uart);
=20
 	if (line < 0) {
-		printk(KERN_NOTICE "8250_hp300: register_serial() DCA scode %d"
-		       " irq %d failed\n", d->scode, uart.port.irq);
+		dev_notice(&d->dev,
+			  "8250_hp300: register_serial() DCA scode %d irq %d failed\n",
+			  d->scode, uart.port.irq);
 		return -ENOMEM;
 	}
=20
@@ -260,8 +261,8 @@ static int __init hp300_8250_init(void)
 		line =3D serial8250_register_8250_port(&uart);
=20
 		if (line < 0) {
-			printk(KERN_NOTICE "8250_hp300: register_serial() APCI"
-			       " %d irq %d failed\n", i, uart.port.irq);
+			pr_notice("8250_hp300: register_serial() APCI %d irq %d failed\n",
+				  i, uart.port.irq);
 			kfree(port);
 			continue;
 		}
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 99f709c..343d050 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1222,8 +1222,7 @@ static void autoconfig(struct uart_8250_port *up)
 out_lock:
 	spin_unlock_irqrestore(&port->lock, flags);
 	if (up->capabilities !=3D old_capabilities) {
-		printk(KERN_WARNING
-		       "ttyS%d: detected caps %08x should be %08x\n",
+		pr_warn("ttyS%d: detected caps %08x should be %08x\n",
 		       serial_index(port), old_capabilities,
 		       up->capabilities);
 	}
--=20
1.9.1

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From - Thu Nov 08 21:38:17 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v4 05/13] tty: serial: 8250: Remove else after return
Date: Fri,  8 Jan 2016 18:43:51 +0100
Lines: 56
Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	phillip.raffeck@fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes checkpatch warnings about unnecessary else blocks afte=
r
return statements.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 7f9f245..09157fa 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -805,10 +805,10 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
=20
 	pi =3D (c & 0xff);
=20
-	if (pi =3D=3D 2) {
+	if (pi =3D=3D 2)
 		return 1;
-	} else if ((pi =3D=3D 0) &&
-			   (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) {
+
+	if ((pi =3D=3D 0) && (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) =
{
 		/* two possibilities: 0x30ps encodes number of parallel and
 		 * serial ports, or 0x1000 indicates *something*. This is not
 		 * immediately obvious, since the 2s1p+4s configuration seems
@@ -816,12 +816,11 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
 		 * advertising the same function 3 as the 4s+2s1p config.
 		 */
 		sub_serports =3D dev->subsystem_device & 0xf;
-		if (sub_serports > 0) {
+		if (sub_serports > 0)
 			return sub_serports;
-		} else {
-			dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on a=
mbiguous config.\n");
-			return 0;
-		}
+
+		dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on am=
biguous config.\n");
+		return 0;
 	}
=20
 	moan_device("unknown NetMos/Mostech program interface", dev);
--=20
1.9.1



From - Thu Nov 08 21:38:17 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v4 11/13] tty: serial: 8250: Remove SERIAL_DEBUG_PNP macro
Date: Fri,  8 Jan 2016 18:43:57 +0100
Lines: 44
Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	phillip.raffeck@fau.de,
	=?UTF-8?q?Anton=20W=C3=BCrfel?= <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46rom: Phillip Raffeck <phillip.raffeck@fau.de>

This patch removes the macro SERIAL_DEBUG_PNP, which is used to enable
debugging at compile time.
As SERIAL_DEBUG_PNP is an orphan, the corresponding #ifdef is removed.
To keep the ability to enable debugging at compile time,
the call to printk(KERN_DEBUG ...) is replaced by a corresponding
call to dev_dbg(), which is configurable via CONFIG_DYNAMIC_DEBUG.

Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pnp.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index ffa7354..ba3a1af 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -464,11 +464,11 @@ serial_pnp_probe(struct pnp_dev *dev, const struc=
t pnp_device_id *dev_id)
 	} else
 		return -ENODEV;
=20
-#ifdef SERIAL_DEBUG_PNP
-	printk(KERN_DEBUG
-		"Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
-		       uart.port.iobase, uart.port.mapbase, uart.port.irq, uart.port=
=2Eiotype);
-#endif
+	dev_dbg(&dev->dev,
+		 "Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
+		 uart.port.iobase, uart.port.mapbase,
+		 uart.port.irq, uart.port.iotype);
+
 	if (flags & CIR_PORT) {
 		uart.port.flags |=3D UPF_FIXED_PORT | UPF_FIXED_TYPE;
 		uart.port.type =3D PORT_8250_CIR;
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v4 03/13] tty: serial: 8250: Fix braces after struct
Date: Fri,  8 Jan 2016 18:43:49 +0100
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	Helge Deller <deller@gmx.de>,
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	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
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	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
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	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	phillip.raffeck@fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes a checkpatch warning by moving an opening curly brace
to its correct position.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 2891958..5e1b464 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -24,8 +24,7 @@
 #endif
=20
 #ifdef CONFIG_HPAPCI
-struct hp300_port
-{
+struct hp300_port {
 	struct hp300_port *next;	/* next port */
 	int line;			/* line (tty) number */
 };
--=20
1.9.1



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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v4 09/13] tty: serial: 8250: Fix multi-line strings
Date: Fri,  8 Jan 2016 18:43:55 +0100
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
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Merged user-visible multi-line strings into a single line according to =
the
Linux Kernel Coding Style, which allows user-visible strings to exceed =
the
maximum line length of 80 characters. The main reason for this is to
facilitate grepping for these strings.
However, some strings were ignored in this patch, because the use of
format specifiers breaks the ability to grep anyway.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 3 +--
 drivers/tty/serial/8250/serial_cs.c | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index d042ad5..b60b58b 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1173,8 +1173,7 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
 module_param(share_irqs, uint, 0644);
-MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices"
-	" (unsafe)");
+MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices (unsafe)");
=20
 module_param(nr_uarts, uint, 0644);
 MODULE_PARM_DESC(nr_uarts, "Maximum number of UARTs supported. (1-" __=
MODULE_STRING(CONFIG_SERIAL_8250_NR_UARTS) ")");
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 1f34867..1ab6bfc 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -533,8 +533,7 @@ static int multi_config(struct pcmcia_device *link)
 		info->multi =3D 2;
 		if (pcmcia_loop_config(link, multi_config_check_notpicky,
 				       &base2)) {
-			dev_warn(&link->dev, "no usable port range "
-			       "found, giving up\n");
+			dev_warn(&link->dev, "no usable port range found, giving up\n");
 			return -ENODEV;
 		}
 	}
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v4 06/13] tty: serial: 8250: Move EXPORT_SYMBOL to function
Date: Fri,  8 Jan 2016 18:43:52 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
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	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
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	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
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This patch moves EXPORT_SYMBOL macros directly after the definition of
the corresponding symbol to remove checkpatch warnings.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 3912646..15082ae 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -763,6 +763,7 @@ void serial8250_suspend_port(int line)
=20
 	uart_suspend_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_suspend_port);
=20
 /**
  *	serial8250_resume_port - resume one serial port
@@ -788,6 +789,7 @@ void serial8250_resume_port(int line)
 	}
 	uart_resume_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_resume_port);
=20
 /*
  * Register a set of serial devices attached to a platform device.  Th=
e
@@ -1167,9 +1169,6 @@ static void __exit serial8250_exit(void)
 module_init(serial8250_init);
 module_exit(serial8250_exit);
=20
-EXPORT_SYMBOL(serial8250_suspend_port);
-EXPORT_SYMBOL(serial8250_resume_port);
-
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v4 07/13] tty: serial: 8250: Fix line continuation warning
Date: Fri,  8 Jan 2016 18:43:53 +0100
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	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
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=46ixed checkpatch warning about an unnecessary line continuation in a
multi-line variable assignment.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 5e1b464..cf566bb 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -248,8 +248,8 @@ static int __init hp300_8250_init(void)
=20
 		/* Memory mapped I/O */
 		uart.port.iotype =3D UPIO_MEM;
-		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ \
-			      | UPF_BOOT_AUTOCONF;
+		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ
+				| UPF_BOOT_AUTOCONF;
 		/* XXX - no interrupt support yet */
 		uart.port.irq =3D 0;
 		uart.port.uartclk =3D HPAPCI_BAUD_BASE * 16;
--=20
1.9.1



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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v4 13/13] tty: serial: 8250: Fix indentation warnings
Date: Fri,  8 Jan 2016 18:43:59 +0100
Lines: 80
Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	phillip.raffeck@fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Checkpatch complains about incorrect indentation of switch/case stateme=
nts.
This patch fixes the corresponding warnings. Additionally some indentat=
ion
is changed to match the correct format specified in the Linux Kernel
Coding Style.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c  | 12 ++++++------
 drivers/tty/serial/8250/8250_pnp.c  |  4 ++--
 drivers/tty/serial/8250/8250_port.c |  6 +++---
 3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 09157fa..b0b47f9 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -841,12 +841,12 @@ static int pci_netmos_init(struct pci_dev *dev)
 		return 0;
=20
 	switch (dev->device) { /* FALLTHROUGH on all */
-		case PCI_DEVICE_ID_NETMOS_9904:
-		case PCI_DEVICE_ID_NETMOS_9912:
-		case PCI_DEVICE_ID_NETMOS_9922:
-		case PCI_DEVICE_ID_NETMOS_9900:
-			num_serial =3D pci_netmos_9900_numports(dev);
-			break;
+	case PCI_DEVICE_ID_NETMOS_9904:
+	case PCI_DEVICE_ID_NETMOS_9912:
+	case PCI_DEVICE_ID_NETMOS_9922:
+	case PCI_DEVICE_ID_NETMOS_9900:
+		num_serial =3D pci_netmos_9900_numports(dev);
+		break;
=20
 		default:
 			if (num_serial =3D=3D 0) {
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index e99282f..a021e31 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -427,8 +427,8 @@ static int check_resources(struct pnp_dev *dev)
 static int serial_pnp_guess_board(struct pnp_dev *dev)
 {
 	if (!(check_name(pnp_dev_name(dev)) ||
-		(dev->card && check_name(dev->card->name))))
-			return -ENODEV;
+	    (dev->card && check_name(dev->card->name))))
+		return -ENODEV;
=20
 	if (check_resources(dev))
 		return 0;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 343d050..da3b240 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2235,9 +2235,9 @@ static void serial8250_set_divisor(struct uart_po=
rt *port, unsigned int baud,
 		serial_port_out(port, 0x2, quot_frac);
 }
=20
-static unsigned int
-serial8250_get_baud_rate(struct uart_port *port, struct ktermios *term=
ios,
-			 struct ktermios *old)
+static unsigned int serial8250_get_baud_rate(struct uart_port *port,
+					     struct ktermios *termios,
+					     struct ktermios *old)
 {
 	unsigned int tolerance =3D port->uartclk / 100;
=20
--=20
1.9.1



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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v4 12/13] tty: serial: 8250: Removed warning in debug output
Date: Fri,  8 Jan 2016 18:43:58 +0100
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Approved: news@gmane.org
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	Qipeng Zha <qipeng.zha@intel.com>,
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	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
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	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	phillip.raffeck@fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes type warnings in a debug output in 8250_pnp.c.
Those warnings never got triggered, because the command was nested
in an #ifdef, which is removed by a patch of this series.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pnp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index ba3a1af..e99282f 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -465,8 +465,8 @@ serial_pnp_probe(struct pnp_dev *dev, const struct =
pnp_device_id *dev_id)
 		return -ENODEV;
=20
 	dev_dbg(&dev->dev,
-		 "Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
-		 uart.port.iobase, uart.port.mapbase,
+		 "Setup PNP port: port %lx, mem 0x%lx, irq %d, type %d\n",
+		 uart.port.iobase, (unsigned long) uart.port.mapbase,
 		 uart.port.irq, uart.port.iotype);
=20
 	if (flags & CIR_PORT) {
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v4 08/13] tty: serial: 8250: Add parentheses to macro
Date: Fri,  8 Jan 2016 18:43:54 +0100
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
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This patch fixes a checkpatch warning caused by missing parentheses
in the definition of a macro.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 15082ae..d042ad5 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -686,7 +686,7 @@ static int __init univ8250_console_init(void)
 }
 console_initcall(univ8250_console_init);
=20
-#define SERIAL8250_CONSOLE	&univ8250_console
+#define SERIAL8250_CONSOLE	(&univ8250_console)
 #else
 #define SERIAL8250_CONSOLE	NULL
 #endif
--=20
1.9.1



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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v4 04/13] tty: serial: 8250: Fix multiline comment style
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	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	phillip.raffeck@fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Checkpatch outputs some warnings about incorrect comment style,
which is fixed by this patch.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_ingenic.c | 12 ++++++++----
 drivers/tty/serial/8250/8250_pnp.c     |  6 ++++--
 drivers/tty/serial/8250/8250_port.c    | 31 ++++++++++++++++----------=
-----
 drivers/tty/serial/8250/serial_cs.c    | 26 +++++++++++++++++---------
 4 files changed, 45 insertions(+), 30 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_ingenic.c b/drivers/tty/seria=
l/8250/8250_ingenic.c
index 49394b4..086bd00 100644
--- a/drivers/tty/serial/8250/8250_ingenic.c
+++ b/drivers/tty/serial/8250/8250_ingenic.c
@@ -152,14 +152,18 @@ static void ingenic_uart_serial_out(struct uart_p=
ort *p, int offset, int value)
 		break;
=20
 	case UART_IER:
-		/* Enable receive timeout interrupt with the
-		 * receive line status interrupt */
+		/*
+		 * Enable receive timeout interrupt with the
+		 * receive line status interrupt
+		 */
 		value |=3D (value & 0x4) << 2;
 		break;
=20
 	case UART_MCR:
-		/* If we have enabled modem status IRQs we should enable modem
-		 * mode. */
+		/*
+		 * If we have enabled modem status IRQs we should enable modem
+		 * mode.
+		 */
 		ier =3D p->serial_in(p, UART_IER);
=20
 		if (ier & UART_IER_MSI)
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 658b392..ffa7354 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -367,8 +367,10 @@ static const struct pnp_device_id pnp_dev_table[] =
=3D {
 	{	"PNPCXXX",		UNKNOWN_DEV	},
 	/* More unknown PnP modems */
 	{	"PNPDXXX",		UNKNOWN_DEV	},
-	/* Winbond CIR port, should not be probed. We should keep track
-	   of it to prevent the legacy serial driver from probing it */
+	/*
+	 * Winbond CIR port, should not be probed. We should keep track
+	 * of it to prevent the legacy serial driver from probing it
+	 */
 	{	"WEC1022",		CIR_PORT	},
 	/*
 	 * SMSC IrCC SIR/FIR port, should not be probed by serial driver
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index f2e588e..99f709c 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -250,9 +250,11 @@ static const struct serial8250_config uart_config[=
] =3D {
 		.fcr		=3D UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
 		.flags		=3D UART_CAP_FIFO | UART_CAP_AFE,
 	},
-/* tx_loadsz is set to 63-bytes instead of 64-bytes to implement
-workaround of errata A-008006 which states that tx_loadsz should  be
-configured less than Maximum supported fifo bytes */
+	/*
+	 * tx_loadsz is set to 63-bytes instead of 64-bytes to implement
+	 * workaround of errata A-008006 which states that tx_loadsz should b=
e
+	 * configured less than Maximum supported fifo bytes
+	 */
 	[PORT_16550A_FSL64] =3D {
 		.name		=3D "16550A_FSL64",
 		.fifo_size	=3D 64,
@@ -1969,23 +1971,22 @@ int serial8250_do_startup(struct uart_port *por=
t)
=20
 	serial8250_set_mctrl(port, port->mctrl);
=20
-	/* Serial over Lan (SoL) hack:
-	   Intel 8257x Gigabit ethernet chips have a
-	   16550 emulation, to be used for Serial Over Lan.
-	   Those chips take a longer time than a normal
-	   serial device to signalize that a transmission
-	   data was queued. Due to that, the above test generally
-	   fails. One solution would be to delay the reading of
-	   iir. However, this is not reliable, since the timeout
-	   is variable. So, let's just don't test if we receive
-	   TX irq. This way, we'll never enable UART_BUG_TXEN.
+	/*
+	 * Serial over Lan (SoL) hack:
+	 * Intel 8257x Gigabit ethernet chips have a 16550 emulation, to be u=
sed
+	 * for Serial Over Lan.  Those chips take a longer time than a normal
+	 * serial device to signalize that a transmission data was queued. Du=
e
+	 * to that, the above test generally fails. One solution would be to
+	 * delay the reading of iir. However, this is not reliable, since the
+	 * timeout is variable. So, let's just don't test if we receive TX ir=
q.
+	 * This way, we'll never enable UART_BUG_TXEN.
 	 */
 	if (up->port.flags & UPF_NO_TXEN_TEST)
 		goto dont_test_tx_en;
=20
 	/*
-	 * Do a quick test to see if we receive an
-	 * interrupt when we enable the TX irq.
+	 * Do a quick test to see if we receive an interrupt when we enable t=
he
+	 * TX irq.
 	 */
 	serial_port_out(port, UART_IER, UART_IER_THRI);
 	lsr =3D serial_port_in(port, UART_LSR);
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 6d7a801..1f34867 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -441,16 +441,20 @@ static int simple_config(struct pcmcia_device *li=
nk)
 	struct serial_info *info =3D link->priv;
 	int i =3D -ENODEV, try;
=20
-	/* First pass: look for a config entry that looks normal.
-	 * Two tries: without IO aliases, then with aliases */
+	/*
+	 * First pass: look for a config entry that looks normal.
+	 * Two tries: without IO aliases, then with aliases
+	 */
 	link->config_flags |=3D CONF_AUTO_SET_VPP;
 	for (try =3D 0; try < 4; try++)
 		if (!pcmcia_loop_config(link, simple_config_check, &try))
 			goto found_port;
=20
-	/* Second pass: try to find an entry that isn't picky about
-	   its base address, then try to grab any standard serial port
-	   address, and finally try to get any free port. */
+	/*
+	 * Second pass: try to find an entry that isn't picky about
+	 * its base address, then try to grab any standard serial port
+	 * address, and finally try to get any free port.
+	 */
 	if (!pcmcia_loop_config(link, simple_config_check_notpicky, NULL))
 		goto found_port;
=20
@@ -480,8 +484,10 @@ static int multi_config_check(struct pcmcia_device=
 *p_dev, void *priv_data)
 	if (p_dev->resource[1]->end)
 		return -EINVAL;
=20
-	/* The quad port cards have bad CIS's, so just look for a
-	   window larger than 8 ports and assume it will be right */
+	/*
+	 * The quad port cards have bad CIS's, so just look for a
+	 * window larger than 8 ports and assume it will be right
+	 */
 	if (p_dev->resource[0]->end <=3D 8)
 		return -EINVAL;
=20
@@ -623,8 +629,10 @@ static int serial_config(struct pcmcia_device *lin=
k)
 			break;
 		}
=20
-	/* Another check for dual-serial cards: look for either serial or
-	   multifunction cards that ask for appropriate IO port ranges */
+	/*
+	 * Another check for dual-serial cards: look for either serial or
+	 * multifunction cards that ask for appropriate IO port ranges
+	 */
 	if ((info->multi =3D=3D 0) &&
 	    (link->has_func_id) &&
 	    (link->socket->pcmcia_pfc =3D=3D 0) &&
--=20
1.9.1



From - Thu Nov 08 21:38:18 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v4 01/13] tty: serial: 8250: Fix whitespace errors
Date: Fri,  8 Jan 2016 18:43:47 +0100
Lines: 359
Approved: news@gmane.org
Message-ID: <1452275039-18787-2-git-send-email-anton.wuerfel@fau.de>
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NNTP-Posting-Date: Fri, 8 Jan 2016 17:52:19 +0000 (UTC)
Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	phillip.raffeck@fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes whitespace errors reported by checkpatch to increase
readability. Main focus is on missing spaces after commas in
function headers and macros (like foo,bar edited to foo, bar).

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
CC: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_accent.c        |  2 +-
 drivers/tty/serial/8250/8250_acorn.c         |  2 +-
 drivers/tty/serial/8250/8250_boca.c          |  2 +-
 drivers/tty/serial/8250/8250_exar_st16c554.c |  2 +-
 drivers/tty/serial/8250/8250_fourport.c      |  2 +-
 drivers/tty/serial/8250/8250_hub6.c          |  2 +-
 drivers/tty/serial/8250/8250_pci.c           | 10 +++--
 drivers/tty/serial/8250/8250_port.c          |  2 +
 drivers/tty/serial/8250/serial_cs.c          | 60 ++++++++++++++------=
--------
 9 files changed, 44 insertions(+), 40 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_accent.c b/drivers/tty/serial=
/8250/8250_accent.c
index 34b51c6..c480729 100644
--- a/drivers/tty/serial/8250/8250_accent.c
+++ b/drivers/tty/serial/8250/8250_accent.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
+#define PORT(_base, _irq)				\
 	{						\
 		.iobase		=3D _base,		\
 		.irq		=3D _irq,			\
diff --git a/drivers/tty/serial/8250/8250_acorn.c b/drivers/tty/serial/=
8250/8250_acorn.c
index 549aa07..402dfdd 100644
--- a/drivers/tty/serial/8250/8250_acorn.c
+++ b/drivers/tty/serial/8250/8250_acorn.c
@@ -70,7 +70,7 @@ serial_card_probe(struct expansion_card *ec, const st=
ruct ecard_id *id)
 	uart.port.regshift	=3D 2;
 	uart.port.dev	=3D &ec->dev;
=20
-	for (i =3D 0; i < info->num_ports; i ++) {
+	for (i =3D 0; i < info->num_ports; i++) {
 		uart.port.membase =3D info->vaddr + type->offset[i];
 		uart.port.mapbase =3D bus_addr + type->offset[i];
=20
diff --git a/drivers/tty/serial/8250/8250_boca.c b/drivers/tty/serial/8=
250/8250_boca.c
index d125dc1..e42a5b5 100644
--- a/drivers/tty/serial/8250/8250_boca.c
+++ b/drivers/tty/serial/8250/8250_boca.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
+#define PORT(_base, _irq)				\
 	{						\
 		.iobase		=3D _base,		\
 		.irq		=3D _irq,			\
diff --git a/drivers/tty/serial/8250/8250_exar_st16c554.c b/drivers/tty=
/serial/8250/8250_exar_st16c554.c
index bf53aab..999f2d3 100644
--- a/drivers/tty/serial/8250/8250_exar_st16c554.c
+++ b/drivers/tty/serial/8250/8250_exar_st16c554.c
@@ -13,7 +13,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
+#define PORT(_base, _irq)				\
 	{						\
 		.iobase		=3D _base,		\
 		.irq		=3D _irq,			\
diff --git a/drivers/tty/serial/8250/8250_fourport.c b/drivers/tty/seri=
al/8250/8250_fourport.c
index be15826..9a04a8a 100644
--- a/drivers/tty/serial/8250/8250_fourport.c
+++ b/drivers/tty/serial/8250/8250_fourport.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)						\
+#define PORT(_base, _irq)						\
 	{								\
 		.iobase		=3D _base,				\
 		.irq		=3D _irq,					\
diff --git a/drivers/tty/serial/8250/8250_hub6.c b/drivers/tty/serial/8=
250/8250_hub6.c
index a5c778e..27124e2 100644
--- a/drivers/tty/serial/8250/8250_hub6.c
+++ b/drivers/tty/serial/8250/8250_hub6.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define HUB6(card,port)							\
+#define HUB6(card, port)						\
 	{								\
 		.iobase		=3D 0x302,				\
 		.irq		=3D 3,					\
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 4097f3f..ccf43cb 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -850,7 +850,7 @@ static int pci_netmos_init(struct pci_dev *dev)
 			break;
=20
 		default:
-			if (num_serial =3D=3D 0 ) {
+			if (num_serial =3D=3D 0) {
 				moan_device("unknown NetMos/Mostech device", dev);
 			}
 	}
@@ -1198,8 +1198,9 @@ static int pci_quatech_has_qmcr(struct uart_8250_=
port *port)
=20
 static int pci_quatech_test(struct uart_8250_port *port)
 {
-	u8 reg;
-	u8 qopr =3D pci_quatech_rqopr(port);
+	u8 reg, qopr;
+
+	qopr =3D pci_quatech_rqopr(port);
 	pci_quatech_wqopr(port, qopr & QPCR_TEST_FOR1);
 	reg =3D pci_quatech_rqopr(port) & 0xC0;
 	if (reg !=3D QPCR_TEST_GET1)
@@ -1286,6 +1287,7 @@ static int pci_quatech_init(struct pci_dev *dev)
 		unsigned long base =3D pci_resource_start(dev, 0);
 		if (base) {
 			u32 tmp;
+
 			outl(inl(base + 0x38) | 0x00002000, base + 0x38);
 			tmp =3D inl(base + 0x3c);
 			outl(tmp | 0x01000000, base + 0x3c);
@@ -4502,7 +4504,7 @@ static struct pci_device_id serial_pci_tbl[] =3D =
{
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b0_bt_2_921600 },
 	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI958,
-		PCI_ANY_ID , PCI_ANY_ID, 0, 0,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b2_8_1152000 },
=20
 	/*
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 52d82d2..7f3bd7b 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1327,6 +1327,7 @@ static void serial8250_start_tx(struct uart_port =
*port)
=20
 		if (up->bugs & UART_BUG_TXEN) {
 			unsigned char lsr;
+
 			lsr =3D serial_in(up, UART_LSR);
 			up->lsr_saved_flags |=3D lsr & LSR_SAVE_FLAGS;
 			if (lsr & UART_LSR_THRE)
@@ -1734,6 +1735,7 @@ static void wait_for_xmitr(struct uart_8250_port =
*up, int bits)
 	/* Wait up to 1s for flow control if necessary */
 	if (up->port.flags & UPF_CONS_FLOW) {
 		unsigned int tmout;
+
 		for (tmout =3D 1000000; tmout; tmout--) {
 			unsigned int msr =3D serial_in(up, UART_MSR);
 			up->msr_saved_flags |=3D msr & MSR_SAVE_FLAGS;
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 4d180c9..6d7a801 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -28,7 +28,7 @@
     and other provisions required by the GPL.  If you do not delete
     the provisions above, a recipient may use your version of this
     file under either the MPL or the GPL.
-   =20
+
 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
=20
 #include <linux/module.h>
@@ -257,7 +257,7 @@ static const struct serial_quirk quirks[] =3D {
 };
=20
=20
-static int serial_config(struct pcmcia_device * link);
+static int serial_config(struct pcmcia_device *link);
=20
=20
 static void serial_remove(struct pcmcia_device *link)
@@ -309,7 +309,7 @@ static int serial_probe(struct pcmcia_device *link)
 	dev_dbg(&link->dev, "serial_attach()\n");
=20
 	/* Create new serial device */
-	info =3D kzalloc(sizeof (*info), GFP_KERNEL);
+	info =3D kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 	info->p_dev =3D link;
@@ -339,7 +339,7 @@ static void serial_detach(struct pcmcia_device *lin=
k)
=20
 /*=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
=20
-static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo * info,
+static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo *info,
 			unsigned int iobase, int irq)
 {
 	struct uart_8250_port uart;
@@ -600,7 +600,7 @@ static int serial_check_for_multi(struct pcmcia_dev=
ice *p_dev,  void *priv_data)
 }
=20
=20
-static int serial_config(struct pcmcia_device * link)
+static int serial_config(struct pcmcia_device *link)
 {
 	struct serial_info *info =3D link->priv;
 	int i;
@@ -701,7 +701,7 @@ static const struct pcmcia_device_id serial_ids[] =3D=
 {
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "LINKSYS", "PCMLM336", 0xf7cb0b07, 0x7=
a821b58),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf5=
10db04, 0x52d21e1e),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MICRO RESEARCH", "COMBO-L/M-336", 0xb=
2ced065, 0x3ced0555),
-	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001" ,0x18df0ba0 ,0x831=
b1064),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001", 0x18df0ba0, 0x831=
b1064),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Diamonds=
 Modem+Ethernet", 0xc2f80cd, 0x656947b9),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Hearts M=
odem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "PCMCIAs", "ComboCard", 0xdcfe12d3, 0x=
cd8906cc),
@@ -797,30 +797,30 @@ static const struct pcmcia_device_id serial_ids[]=
 =3D {
 	PCMCIA_DEVICE_CIS_PROD_ID123("ADVANTECH", "COMpad-32/85", "1.0", 0x96=
913a85, 0x8fbe92ae, 0x0877b627, "cis/COMpad2.cis"),
 	PCMCIA_DEVICE_CIS_PROD_ID2("RS-COM 2P", 0xad20b156, "cis/RS-COM-2P.ci=
s"),
 	PCMCIA_DEVICE_CIS_MANF_CARD(0x0013, 0x0000, "cis/GLOBETROTTER.cis"),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100  1.00.",0x19ca78af,0xf964f42b),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100",0x19ca78af,0x71d98e83),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232  1.00.",0x19ca78af,0x69fb7490),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232",0x19ca78af,0xb6bc0235),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232",0x63f2e0bd,0xb9e175d3),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232-5",0x63f2e0bd,0xfce33442),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232",0x3beb8cf2,0x171e=
7190),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232-5",0x3beb8cf2,0x20=
da4262),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF428",0x3beb8cf2,0xea5d=
d57d),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF500",0x3beb8cf2,0xd772=
55fa),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: IC232",0x3beb8cf2,0x6a70=
9903),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: SL232",0x3beb8cf2,0x1843=
0676),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: XL232",0x3beb8cf2,0x6f93=
3767),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial+Parallel Port: SP230",0x=
3beb8cf2,0xdb9e58bc),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(2,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(3,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100  1.00.", 0x19ca78af, 0xf964f42b),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100", 0x19ca78af, 0x71d98e83),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232  1.00.", 0x19ca78af, 0x69fb7490),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232", 0x19ca78af, 0xb6bc0235),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232", 0x63f2e0bd, 0xb9e175d3),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232-5", 0x63f2e0bd, 0xfce33442),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232", 0x3beb8cf2, 0x1=
71e7190),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232-5", 0x3beb8cf2, 0=
x20da4262),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF428", 0x3beb8cf2, 0xe=
a5dd57d),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF500", 0x3beb8cf2, 0xd=
77255fa),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: IC232", 0x3beb8cf2, 0x6=
a709903),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: SL232", 0x3beb8cf2, 0x1=
8430676),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: XL232", 0x3beb8cf2, 0x6=
f933767),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial+Parallel Port: SP230",=
 0x3beb8cf2, 0xdb9e58bc),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(2, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(3, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
 	PCMCIA_DEVICE_MANF_CARD(0x0279, 0x950b),
 	/* too generic */
 	/* PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0160, 0x0002), */
--=20
1.9.1



From - Thu Nov 08 21:38:18 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: parisc late boot crash in 4.4-rc, scsi-related
Date: Fri, 8 Jan 2016 22:56:43 +0200 (EET)
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Xref: news.gmane.org gmane.linux.ports.parisc:26337 gmane.linux.scsi:109360
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26337>

I noticed on RP3440 and A500 that recent 4.4-rc* crashes on boot. The 
following is dmesg that was copied piecewise by hand from ILO console 
log (so it can contain some whitespace damage), from 
4.4.0-rc7-00028-gc616920 on RP3440:

SCSI subsystem initialized
NET: Registered protocol family 2
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
UDP hash table entries: 8192 (order: 6, 262144 bytes)
UDP-Lite hash table entries: 8192 (order: 6, 262144 bytes)
NET: Registered protocol family 1
Chassis warnings not supported.
Performance monitoring counters enabled for Storm Peak Slow
futex hash table entries: 1024 (order: 3, 32768 bytes)
HugeTLB registered 2 MB page size, pre-allocated 0 pages
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9b
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 27, base_baud = 115200) is a 16450
0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 27, base_baud = 115200) is a 16550A
console [ttyS1] enabled
console [ttyS1] enabled
bootconsole [ttyB0] disabled
bootconsole [ttyB0] disabled
0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 27, base_baud = 115200) is a 16550A
0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 27, base_baud = 115200) is a 16550A
sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 22
sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi host0: sym-2.2.3
scsi 0:0:0:0: Direct-Access     COMPAQ   BF07285A36       HPB7 PQ: 0 ANSI: 3
scsi target0:0:0: tagged command queuing enabled, command queue depth 16.
scsi target0:0:0: Beginning Domain Validation
scsi target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
scsi target0:0:0: Ending Domain Validation
random: nonblocking pool is initialized
sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 23
sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi host1: sym-2.2.3
mousedev: PS/2 mouse device common for all mice
sd 0:0:0:0: [sda] 142264000 512-byte logical blocks: (72.8 GB/67.8 GiB)
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
NET: Registered protocol family 17
sd 0:0:0:0: [sda] Write Protect is off
rtc-generic rtc-generic: setting system clock to 2015-12-31 11:45:39 UTC (1451562339)
sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
 sda: sda1 sda2 sda3 sda4
sd 0:0:0:0: [sda] Attached SCSI disk
EXT4-fs (sda3): couldn't mount as ext3 due to feature incompatibilities
EXT4-fs (sda3): couldn't mount as ext2 due to feature incompatibilities
EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
VFS: Mounted root (ext4 filesystem) readonly on device 8:3.
devtmpfs: mounted
Freeing unused kernel memory: 1024K (0000000040100000 - 0000000040200000)
------------[ cut here ]------------
WARNING: at block/blk-merge.c:438
Modules linked in:
CPU: 0 PID: 1 Comm: init Not tainted 4.4.0-rc7-00028-gc616920 #81
task: 000000007fce8000 ti: 000000007fc3c000 task.ti: 000000007fc3c000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001111 Not tainted
r00-03  000000ff0806ff0f 000000007fc3d990 0000000000000000 000000007fc3d990
r04-07  00000000407b20b0 0000000000000000 0000000000000110 0000000000000000
r08-11  0000000000000000 0000000000000001 000000033f8b6bf0 0000000000000000
r12-15  0000000000001000 000000033f9e0000 0000000000000002 0000000000000011
r16-19  0000000042174470 000000033f8b6bf0 000000033f8b6930 0000000000000000
r20-23  0000000000000000 000000007f1dd800 0000000000011000 0000000000000000
r24-27  0000000000000000 2ffffedf40000000 000000033f8b6bf0 00000000407b20b0
r28-31  0000000000000001 0000000000001000 000000007fc3dac0 0000000000000001
sr00-03  0000000000000000 0000000000000800 0000000000000000 0000000000000800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040481d9c 0000000040481da0
 IIR: 03ffe01f    ISR: 0000000010340800  IOR: 000003fe2d8b6bf0
 CPU:        0   CR30: 000000007fc3c000 CR31: ffffffffffffffff
 ORIG_R28: 0000000000000158
 IAOQ[0]: blk_rq_map_sg+0x5cc/0x600
 IAOQ[1]: blk_rq_map_sg+0x5d0/0x600
 RP(r2):           (null)
Backtrace:
 [<00000000405510d0>] scsi_init_sgtable+0xa0/0x130
 [<00000000405511b4>] scsi_init_io+0x54/0x160
 [<0000000040570958>] sd_init_command+0x68/0x708
 [<00000000405513c4>] scsi_setup_cmnd+0x104/0x1a0
 [<0000000040551f54>] scsi_queue_rq+0x864/0x9f8
 [<00000000404877f4>] __blk_mq_run_hw_queue+0x2e4/0x4e0
 [<00000000404874e4>] blk_mq_run_hw_queue+0xdc/0x108
 [<000000004048928c>] blk_mq_insert_requests+0x15c/0x190
 [<000000004048a19c>] blk_mq_flush_plug_list+0x17c/0x1a8
 [<000000004047af64>] blk_flush_plug_list+0x104/0x2b0
 [<000000004047b4c4>] blk_finish_plug+0x44/0x68
 [<00000000402ee0dc>] __do_page_cache_readahead+0x29c/0x360
 [<00000000402dfb4c>] filemap_fault+0x4f4/0x5a0
 [<000000004030d464>] __do_fault+0x5c/0x148
 [<000000004031360c>] handle_mm_fault+0xa84/0x1a10

---[ end trace 4a3faaec387ada43 ]---
------------[ cut here ]------------
kernel BUG at drivers/scsi/scsi_lib.c:1096!
CPU: 0 PID: 1 Comm: init Tainted: G        W       4.4.0-rc7-00028-gc616920 #81
task: 000000007fce8000 ti: 000000007fc3c000 task.ti: 000000007fc3c000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001111 Tainted: G        W
r00-03  000000ff0806ff0f 000000007fc3d990 00000000405510d0 000000007fc3d8f0
r04-07  00000000407b20b0 0000000000000001 000000033f8b6b48 000000033f8b6930
r08-11  000000033f871000 000000007f148000 0000000000011000 0000000040999d00
r12-15  000000033f871000 000000033f8b6930 0000000000000000 000000033f871000
r16-19  0000000000000000 0000000000000158 000000033f854ba0 0000000000000000
r20-23  0000000000000000 000000007f1dd800 0000000000011000 0000000000000000
r24-27  0000000000000000 2ffffedf40000000 000000033f8b6bf0 00000000407b20b0
r28-31  0000000000000002 0000000000001000 000000007fc3d990 0000000000000001
sr00-03  0000000000000000 0000000000000800 0000000000000000 0000000000000800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040551140 0000000040551144
 IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000
 CPU:        0   CR30: 000000007fc3c000 CR31: ffffffffffffffff
 ORIG_R28: 0000000000000000
 IAOQ[0]: scsi_init_sgtable+0x110/0x130
 IAOQ[1]: scsi_init_sgtable+0x114/0x130
 RP(r2): scsi_init_sgtable+0xa0/0x130
Backtrace:
 [<00000000405511b4>] scsi_init_io+0x54/0x160
 [<0000000040570958>] sd_init_command+0x68/0x708
 [<00000000405513c4>] scsi_setup_cmnd+0x104/0x1a0
 [<0000000040551f54>] scsi_queue_rq+0x864/0x9f8
 [<00000000404877f4>] __blk_mq_run_hw_queue+0x2e4/0x4e0
 [<00000000404874e4>] blk_mq_run_hw_queue+0xdc/0x108
 [<000000004048928c>] blk_mq_insert_requests+0x15c/0x190
 [<000000004048a19c>] blk_mq_flush_plug_list+0x17c/0x1a8
 [<000000004047af64>] blk_flush_plug_list+0x104/0x2b0
 [<000000004047b4c4>] blk_finish_plug+0x44/0x68
 [<00000000402ee0dc>] __do_page_cache_readahead+0x29c/0x360
 [<00000000402dfb4c>] filemap_fault+0x4f4/0x5a0
 [<000000004030d464>] __do_fault+0x5c/0x148
 [<000000004031360c>] handle_mm_fault+0xa84/0x1a10

CPU: 0 PID: 1 Comm: init Tainted: G        W       4.4.0-rc7-00028-gc616920 #81
Backtrace:
 [<0000000040216888>] show_stack+0x20/0x38
 [<00000000404a2fac>] dump_stack+0xac/0x130
 [<0000000040216a5c>] die_if_kernel+0x19c/0x2e0
 [<0000000040217948>] handle_interruption+0x9a8/0x9d0

---[ end trace 4a3faaec387ada44 ]---
note: init[1] exited with preempt_count 2
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

---[ end Kernel panic - not syncing: Attempted to kill init! 
exitcode=0x0000000b

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:38:18 2018
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.scsi,gmane.linux.ports.parisc
Subject: parisc late boot crash in 4.4-rc, scsi-related
Date: Fri, 8 Jan 2016 23:30:22 +0200 (EET)
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(Try 2, spelling linux-block correctly - please ignore the previous one)

I noticed on RP3440 and A500 that recent 4.4-rc* crashes on boot. The 
following is dmesg that was copied piecewise by hand from ILO console 
log (so it can contain some whitespace damage), from 
4.4.0-rc7-00028-gc616920 on RP3440:

SCSI subsystem initialized
NET: Registered protocol family 2
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
UDP hash table entries: 8192 (order: 6, 262144 bytes)
UDP-Lite hash table entries: 8192 (order: 6, 262144 bytes)
NET: Registered protocol family 1
Chassis warnings not supported.
Performance monitoring counters enabled for Storm Peak Slow
futex hash table entries: 1024 (order: 3, 32768 bytes)
HugeTLB registered 2 MB page size, pre-allocated 0 pages
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
PDC Stable Storage facility v0.30
STI GSC/PCI core graphics driver Version 0.9b
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 27, base_baud = 115200) is a 16450
0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 27, base_baud = 115200) is a 16550A
console [ttyS1] enabled
console [ttyS1] enabled
bootconsole [ttyB0] disabled
bootconsole [ttyB0] disabled
0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 27, base_baud = 115200) is a 16550A
0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 27, base_baud = 115200) is a 16550A
sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 22
sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi host0: sym-2.2.3
scsi 0:0:0:0: Direct-Access     COMPAQ   BF07285A36       HPB7 PQ: 0 ANSI: 3
scsi target0:0:0: tagged command queuing enabled, command queue depth 16.
scsi target0:0:0: Beginning Domain Validation
scsi target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
scsi target0:0:0: Ending Domain Validation
random: nonblocking pool is initialized
sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 23
sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi host1: sym-2.2.3
mousedev: PS/2 mouse device common for all mice
sd 0:0:0:0: [sda] 142264000 512-byte logical blocks: (72.8 GB/67.8 GiB)
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
NET: Registered protocol family 17
sd 0:0:0:0: [sda] Write Protect is off
rtc-generic rtc-generic: setting system clock to 2015-12-31 11:45:39 UTC (1451562339)
sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
 sda: sda1 sda2 sda3 sda4
sd 0:0:0:0: [sda] Attached SCSI disk
EXT4-fs (sda3): couldn't mount as ext3 due to feature incompatibilities
EXT4-fs (sda3): couldn't mount as ext2 due to feature incompatibilities
EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
VFS: Mounted root (ext4 filesystem) readonly on device 8:3.
devtmpfs: mounted
Freeing unused kernel memory: 1024K (0000000040100000 - 0000000040200000)
------------[ cut here ]------------
WARNING: at block/blk-merge.c:438
Modules linked in:
CPU: 0 PID: 1 Comm: init Not tainted 4.4.0-rc7-00028-gc616920 #81
task: 000000007fce8000 ti: 000000007fc3c000 task.ti: 000000007fc3c000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001111 Not tainted
r00-03  000000ff0806ff0f 000000007fc3d990 0000000000000000 000000007fc3d990
r04-07  00000000407b20b0 0000000000000000 0000000000000110 0000000000000000
r08-11  0000000000000000 0000000000000001 000000033f8b6bf0 0000000000000000
r12-15  0000000000001000 000000033f9e0000 0000000000000002 0000000000000011
r16-19  0000000042174470 000000033f8b6bf0 000000033f8b6930 0000000000000000
r20-23  0000000000000000 000000007f1dd800 0000000000011000 0000000000000000
r24-27  0000000000000000 2ffffedf40000000 000000033f8b6bf0 00000000407b20b0
r28-31  0000000000000001 0000000000001000 000000007fc3dac0 0000000000000001
sr00-03  0000000000000000 0000000000000800 0000000000000000 0000000000000800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040481d9c 0000000040481da0
 IIR: 03ffe01f    ISR: 0000000010340800  IOR: 000003fe2d8b6bf0
 CPU:        0   CR30: 000000007fc3c000 CR31: ffffffffffffffff
 ORIG_R28: 0000000000000158
 IAOQ[0]: blk_rq_map_sg+0x5cc/0x600
 IAOQ[1]: blk_rq_map_sg+0x5d0/0x600
 RP(r2):           (null)
Backtrace:
 [<00000000405510d0>] scsi_init_sgtable+0xa0/0x130
 [<00000000405511b4>] scsi_init_io+0x54/0x160
 [<0000000040570958>] sd_init_command+0x68/0x708
 [<00000000405513c4>] scsi_setup_cmnd+0x104/0x1a0
 [<0000000040551f54>] scsi_queue_rq+0x864/0x9f8
 [<00000000404877f4>] __blk_mq_run_hw_queue+0x2e4/0x4e0
 [<00000000404874e4>] blk_mq_run_hw_queue+0xdc/0x108
 [<000000004048928c>] blk_mq_insert_requests+0x15c/0x190
 [<000000004048a19c>] blk_mq_flush_plug_list+0x17c/0x1a8
 [<000000004047af64>] blk_flush_plug_list+0x104/0x2b0
 [<000000004047b4c4>] blk_finish_plug+0x44/0x68
 [<00000000402ee0dc>] __do_page_cache_readahead+0x29c/0x360
 [<00000000402dfb4c>] filemap_fault+0x4f4/0x5a0
 [<000000004030d464>] __do_fault+0x5c/0x148
 [<000000004031360c>] handle_mm_fault+0xa84/0x1a10

---[ end trace 4a3faaec387ada43 ]---
------------[ cut here ]------------
kernel BUG at drivers/scsi/scsi_lib.c:1096!
CPU: 0 PID: 1 Comm: init Tainted: G        W       4.4.0-rc7-00028-gc616920 #81
task: 000000007fce8000 ti: 000000007fc3c000 task.ti: 000000007fc3c000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001111 Tainted: G        W
r00-03  000000ff0806ff0f 000000007fc3d990 00000000405510d0 000000007fc3d8f0
r04-07  00000000407b20b0 0000000000000001 000000033f8b6b48 000000033f8b6930
r08-11  000000033f871000 000000007f148000 0000000000011000 0000000040999d00
r12-15  000000033f871000 000000033f8b6930 0000000000000000 000000033f871000
r16-19  0000000000000000 0000000000000158 000000033f854ba0 0000000000000000
r20-23  0000000000000000 000000007f1dd800 0000000000011000 0000000000000000
r24-27  0000000000000000 2ffffedf40000000 000000033f8b6bf0 00000000407b20b0
r28-31  0000000000000002 0000000000001000 000000007fc3d990 0000000000000001
sr00-03  0000000000000000 0000000000000800 0000000000000000 0000000000000800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040551140 0000000040551144
 IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000
 CPU:        0   CR30: 000000007fc3c000 CR31: ffffffffffffffff
 ORIG_R28: 0000000000000000
 IAOQ[0]: scsi_init_sgtable+0x110/0x130
 IAOQ[1]: scsi_init_sgtable+0x114/0x130
 RP(r2): scsi_init_sgtable+0xa0/0x130
Backtrace:
 [<00000000405511b4>] scsi_init_io+0x54/0x160
 [<0000000040570958>] sd_init_command+0x68/0x708
 [<00000000405513c4>] scsi_setup_cmnd+0x104/0x1a0
 [<0000000040551f54>] scsi_queue_rq+0x864/0x9f8
 [<00000000404877f4>] __blk_mq_run_hw_queue+0x2e4/0x4e0
 [<00000000404874e4>] blk_mq_run_hw_queue+0xdc/0x108
 [<000000004048928c>] blk_mq_insert_requests+0x15c/0x190
 [<000000004048a19c>] blk_mq_flush_plug_list+0x17c/0x1a8
 [<000000004047af64>] blk_flush_plug_list+0x104/0x2b0
 [<000000004047b4c4>] blk_finish_plug+0x44/0x68
 [<00000000402ee0dc>] __do_page_cache_readahead+0x29c/0x360
 [<00000000402dfb4c>] filemap_fault+0x4f4/0x5a0
 [<000000004030d464>] __do_fault+0x5c/0x148
 [<000000004031360c>] handle_mm_fault+0xa84/0x1a10

CPU: 0 PID: 1 Comm: init Tainted: G        W       4.4.0-rc7-00028-gc616920 #81
Backtrace:
 [<0000000040216888>] show_stack+0x20/0x38
 [<00000000404a2fac>] dump_stack+0xac/0x130
 [<0000000040216a5c>] die_if_kernel+0x19c/0x2e0
 [<0000000040217948>] handle_interruption+0x9a8/0x9d0

---[ end trace 4a3faaec387ada44 ]---
note: init[1] exited with preempt_count 2
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

---[ end Kernel panic - not syncing: Attempted to kill init! 
exitcode=0x0000000b

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:38:19 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: Re: parisc late boot crash in 4.4-rc, scsi-related
Date: Fri, 8 Jan 2016 22:43:19 +0100
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On 08.01.2016 22:30, Meelis Roos wrote:
> (Try 2, spelling linux-block correctly - please ignore the previous one)
> 
> I noticed on RP3440 and A500 that recent 4.4-rc* crashes on boot.

I've not seen it with 4.4-rc yet, but I've seen it on debian kernel 4.3.3:

[   25.516000] scsi_id(112): unaligned access to 0x00000000facdf009 at ip=0x000000004100390b
[   25.628000] sd 3:0:6:0: [sdb] Attached SCSI disk
[   25.716000] scsi_id(113): unaligned access to 0x00000000fada7009 at ip=0x000000004100390b
[   25.864000] random: nonblocking pool is initialized
[   25.928000] Backtrace:
[   25.928000]  [<000000000046feb8>] scsi_init_sgtable+0x70/0x168 [scsi_mod]
[   25.928000]  [<000000000047001c>] scsi_init_io+0x6c/0x258 [scsi_mod]
[   25.928000]  [<0000000000828f28>] sd_init_command+0x70/0xec8 [sd_mod]
[   25.928000] 
[   25.928000] 
[   25.928000] Bad Address (null pointer deref?): Code=15 regs=00000000bbe69100 (Addr=c00002613ce9de94)
[   25.928000] CPU: 0 PID: 67 Comm: systemd-udevd Not tainted 4.3.0-1-parisc64-smp #1 Debian 4.3.3-4
[   25.928000] task: 00000000bbe67548 ti: 00000000bbe68000 task.ti: 00000000bbe68000
[   25.928000] 
[   25.928000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   25.928000] PSW: 00001000000001001111111100001110 Not tainted
[   25.928000] r00-03  000000ff0804ff0e 00000000bbe68fd0 000000004043abd8 00000000bbe68fd0
[   25.928000] r04-07  00000000408eea40 0000000000014000 0000000000000000 000000000000001c
[   25.928000] r08-11  0000000000000001 0000000000000000 f4b3d2613ce9de94 00000000bbd94100
[   25.928000] r12-15  00000000000001c0 000000000000000a 0000000000001000 000000007f8c3148
[   25.928000] r16-19  0000000000000000 0000000000001000 0000000041dfa600 0000000000001000
[   25.928000] r20-23  0000000000000000 000000007fabac00 0000000000011000 0000000040987a40
[   25.928000] r24-27  0000000000000000 0000000040e18000 000000007fac1d30 00000000408eea40
[   25.928000] r28-31  f4b3d2613ce9de94 00000000bbe690d0 00000000bbe69100 0000000000000001
[   25.928000] sr00-03  0000000000014000 0000000000000000 0000000000000000 0000000000014000
[   25.928000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[   25.928000] 
[   25.928000] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004043abe0 000000004043abe4
[   25.928000]  IIR: 0d4010dc    ISR: 0000000034b3d000  IOR: c00002613ce9de94
[   25.928000]  CPU:        0   CR30: 00000000bbe68000 CR31: 00000000d20345e0
[   25.928000]  ORIG_R28: 0000000000000000
[   25.928000]  IAOQ[0]: blk_rq_map_sg+0x2a0/0x568
[   25.928000]  IAOQ[1]: blk_rq_map_sg+0x2a4/0x568
[   25.928000]  RP(r2): blk_rq_map_sg+0x298/0x568
[   25.928000] Backtrace:
[   25.928000]  [<000000000046feb8>] scsi_init_sgtable+0x70/0x168 [scsi_mod]
[   25.928000]  [<000000000047001c>] scsi_init_io+0x6c/0x258 [scsi_mod]
[   25.928000]  [<0000000000828f28>] sd_init_command+0x70/0xec8 [sd_mod]


Interestingly on a C8000 workstation I see instead:
[   25.920000] kernel BUG at /build/linux-2YuUZy/linux-4.3.3/drivers/scsi/scsi_lib.c:1096!

Helge

> The 
> following is dmesg that was copied piecewise by hand from ILO console 
> log (so it can contain some whitespace damage), from 
> 4.4.0-rc7-00028-gc616920 on RP3440:
> 
> SCSI subsystem initialized
> NET: Registered protocol family 2
> TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
> TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
> TCP: Hash tables configured (established 131072 bind 65536)
> UDP hash table entries: 8192 (order: 6, 262144 bytes)
> UDP-Lite hash table entries: 8192 (order: 6, 262144 bytes)
> NET: Registered protocol family 1
> Chassis warnings not supported.
> Performance monitoring counters enabled for Storm Peak Slow
> futex hash table entries: 1024 (order: 3, 32768 bytes)
> HugeTLB registered 2 MB page size, pre-allocated 0 pages
> Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
> io scheduler noop registered
> io scheduler deadline registered
> io scheduler cfq registered (default)
> PDC Stable Storage facility v0.30
> STI GSC/PCI core graphics driver Version 0.9b
> Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
> 0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 27, base_baud = 115200) is a 16450
> 0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 27, base_baud = 115200) is a 16550A
> console [ttyS1] enabled
> console [ttyS1] enabled
> bootconsole [ttyB0] disabled
> bootconsole [ttyB0] disabled
> 0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 27, base_baud = 115200) is a 16550A
> 0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 27, base_baud = 115200) is a 16550A
> sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 22
> sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
> sym0: SCSI BUS has been reset.
> scsi host0: sym-2.2.3
> scsi 0:0:0:0: Direct-Access     COMPAQ   BF07285A36       HPB7 PQ: 0 ANSI: 3
> scsi target0:0:0: tagged command queuing enabled, command queue depth 16.
> scsi target0:0:0: Beginning Domain Validation
> scsi target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
> scsi target0:0:0: Ending Domain Validation
> random: nonblocking pool is initialized
> sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 23
> sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
> sym1: SCSI BUS has been reset.
> scsi host1: sym-2.2.3
> mousedev: PS/2 mouse device common for all mice
> sd 0:0:0:0: [sda] 142264000 512-byte logical blocks: (72.8 GB/67.8 GiB)
> rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
> NET: Registered protocol family 17
> sd 0:0:0:0: [sda] Write Protect is off
> rtc-generic rtc-generic: setting system clock to 2015-12-31 11:45:39 UTC (1451562339)
> sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
>  sda: sda1 sda2 sda3 sda4
> sd 0:0:0:0: [sda] Attached SCSI disk
> EXT4-fs (sda3): couldn't mount as ext3 due to feature incompatibilities
> EXT4-fs (sda3): couldn't mount as ext2 due to feature incompatibilities
> EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
> VFS: Mounted root (ext4 filesystem) readonly on device 8:3.
> devtmpfs: mounted
> Freeing unused kernel memory: 1024K (0000000040100000 - 0000000040200000)
> ------------[ cut here ]------------
> WARNING: at block/blk-merge.c:438
> Modules linked in:
> CPU: 0 PID: 1 Comm: init Not tainted 4.4.0-rc7-00028-gc616920 #81
> task: 000000007fce8000 ti: 000000007fc3c000 task.ti: 000000007fc3c000
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001101111111100001111 Not tainted
> r00-03  000000ff0806ff0f 000000007fc3d990 0000000000000000 000000007fc3d990
> r04-07  00000000407b20b0 0000000000000000 0000000000000110 0000000000000000
> r08-11  0000000000000000 0000000000000001 000000033f8b6bf0 0000000000000000
> r12-15  0000000000001000 000000033f9e0000 0000000000000002 0000000000000011
> r16-19  0000000042174470 000000033f8b6bf0 000000033f8b6930 0000000000000000
> r20-23  0000000000000000 000000007f1dd800 0000000000011000 0000000000000000
> r24-27  0000000000000000 2ffffedf40000000 000000033f8b6bf0 00000000407b20b0
> r28-31  0000000000000001 0000000000001000 000000007fc3dac0 0000000000000001
> sr00-03  0000000000000000 0000000000000800 0000000000000000 0000000000000800
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040481d9c 0000000040481da0
>  IIR: 03ffe01f    ISR: 0000000010340800  IOR: 000003fe2d8b6bf0
>  CPU:        0   CR30: 000000007fc3c000 CR31: ffffffffffffffff
>  ORIG_R28: 0000000000000158
>  IAOQ[0]: blk_rq_map_sg+0x5cc/0x600
>  IAOQ[1]: blk_rq_map_sg+0x5d0/0x600
>  RP(r2):           (null)
> Backtrace:
>  [<00000000405510d0>] scsi_init_sgtable+0xa0/0x130
>  [<00000000405511b4>] scsi_init_io+0x54/0x160
>  [<0000000040570958>] sd_init_command+0x68/0x708
>  [<00000000405513c4>] scsi_setup_cmnd+0x104/0x1a0
>  [<0000000040551f54>] scsi_queue_rq+0x864/0x9f8
>  [<00000000404877f4>] __blk_mq_run_hw_queue+0x2e4/0x4e0
>  [<00000000404874e4>] blk_mq_run_hw_queue+0xdc/0x108
>  [<000000004048928c>] blk_mq_insert_requests+0x15c/0x190
>  [<000000004048a19c>] blk_mq_flush_plug_list+0x17c/0x1a8
>  [<000000004047af64>] blk_flush_plug_list+0x104/0x2b0
>  [<000000004047b4c4>] blk_finish_plug+0x44/0x68
>  [<00000000402ee0dc>] __do_page_cache_readahead+0x29c/0x360
>  [<00000000402dfb4c>] filemap_fault+0x4f4/0x5a0
>  [<000000004030d464>] __do_fault+0x5c/0x148
>  [<000000004031360c>] handle_mm_fault+0xa84/0x1a10
> 
> ---[ end trace 4a3faaec387ada43 ]---
> ------------[ cut here ]------------
> kernel BUG at drivers/scsi/scsi_lib.c:1096!
> CPU: 0 PID: 1 Comm: init Tainted: G        W       4.4.0-rc7-00028-gc616920 #81
> task: 000000007fce8000 ti: 000000007fc3c000 task.ti: 000000007fc3c000
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001101111111100001111 Tainted: G        W
> r00-03  000000ff0806ff0f 000000007fc3d990 00000000405510d0 000000007fc3d8f0
> r04-07  00000000407b20b0 0000000000000001 000000033f8b6b48 000000033f8b6930
> r08-11  000000033f871000 000000007f148000 0000000000011000 0000000040999d00
> r12-15  000000033f871000 000000033f8b6930 0000000000000000 000000033f871000
> r16-19  0000000000000000 0000000000000158 000000033f854ba0 0000000000000000
> r20-23  0000000000000000 000000007f1dd800 0000000000011000 0000000000000000
> r24-27  0000000000000000 2ffffedf40000000 000000033f8b6bf0 00000000407b20b0
> r28-31  0000000000000002 0000000000001000 000000007fc3d990 0000000000000001
> sr00-03  0000000000000000 0000000000000800 0000000000000000 0000000000000800
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040551140 0000000040551144
>  IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000
>  CPU:        0   CR30: 000000007fc3c000 CR31: ffffffffffffffff
>  ORIG_R28: 0000000000000000
>  IAOQ[0]: scsi_init_sgtable+0x110/0x130
>  IAOQ[1]: scsi_init_sgtable+0x114/0x130
>  RP(r2): scsi_init_sgtable+0xa0/0x130
> Backtrace:
>  [<00000000405511b4>] scsi_init_io+0x54/0x160
>  [<0000000040570958>] sd_init_command+0x68/0x708
>  [<00000000405513c4>] scsi_setup_cmnd+0x104/0x1a0
>  [<0000000040551f54>] scsi_queue_rq+0x864/0x9f8
>  [<00000000404877f4>] __blk_mq_run_hw_queue+0x2e4/0x4e0
>  [<00000000404874e4>] blk_mq_run_hw_queue+0xdc/0x108
>  [<000000004048928c>] blk_mq_insert_requests+0x15c/0x190
>  [<000000004048a19c>] blk_mq_flush_plug_list+0x17c/0x1a8
>  [<000000004047af64>] blk_flush_plug_list+0x104/0x2b0
>  [<000000004047b4c4>] blk_finish_plug+0x44/0x68
>  [<00000000402ee0dc>] __do_page_cache_readahead+0x29c/0x360
>  [<00000000402dfb4c>] filemap_fault+0x4f4/0x5a0
>  [<000000004030d464>] __do_fault+0x5c/0x148
>  [<000000004031360c>] handle_mm_fault+0xa84/0x1a10
> 
> CPU: 0 PID: 1 Comm: init Tainted: G        W       4.4.0-rc7-00028-gc616920 #81
> Backtrace:
>  [<0000000040216888>] show_stack+0x20/0x38
>  [<00000000404a2fac>] dump_stack+0xac/0x130
>  [<0000000040216a5c>] die_if_kernel+0x19c/0x2e0
>  [<0000000040217948>] handle_interruption+0x9a8/0x9d0
> 
> ---[ end trace 4a3faaec387ada44 ]---
> note: init[1] exited with preempt_count 2
> Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
> 
> ---[ end Kernel panic - not syncing: Attempted to kill init! 
> exitcode=0x0000000b
> 

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Fix __ARCH_SI_PREAMBLE_SIZE on parisc
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On a 64bit kernel build the compiler aligns the _sifields union in the
struct siginfo_t on a 64bit address. The __ARCH_SI_PREAMBLE_SIZE define
compensates for this alignment and thus fixes the wait testcase of the
strace package.

The symptoms of a wrong __ARCH_SI_PREAMBLE_SIZE value is that
_sigchld.si_stime variable is missed to be copied and thus after a
copy_siginfo() will have uninitialized values.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org

diff --git a/arch/parisc/include/uapi/asm/siginfo.h b/arch/parisc/include/uapi/asm/siginfo.h
index d703472..1c75565 100644
--- a/arch/parisc/include/uapi/asm/siginfo.h
+++ b/arch/parisc/include/uapi/asm/siginfo.h
@@ -1,6 +1,10 @@
 #ifndef _PARISC_SIGINFO_H
 #define _PARISC_SIGINFO_H
 
+#if defined(__LP64__)
+#define __ARCH_SI_PREAMBLE_SIZE   (4 * sizeof(int))
+#endif
+
 #include <asm-generic/siginfo.h>
 
 #undef NSIGTRAP
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Drop parisc-specific NSIGTRAP define
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NIGTRAP is already defined in asm-generic/siginfo.h, so no need to
define it ourselves.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/siginfo.h b/arch/parisc/include/uapi/asm/siginfo.h
index 1c75565..8fd10f8 100644
--- a/arch/parisc/include/uapi/asm/siginfo.h
+++ b/arch/parisc/include/uapi/asm/siginfo.h
@@ -7,7 +7,4 @@
 
 #include <asm-generic/siginfo.h>
 
-#undef NSIGTRAP
-#define NSIGTRAP	4

From - Thu Nov 08 21:38:19 2018
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From - Thu Nov 08 21:38:19 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH parisc,frv,m68k] timerfd: Fix timeout values with
 CONFIG_TIME_LOW_RES=y
Date: Sun, 10 Jan 2016 21:57:39 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/8188>

On architectures where CONFIG_TIME_LOW_RES is set (currently parisc,
m68k, frv) calling timerfd_settime() to set a timeout and directly
afterwards calling timerfd_gettime() to get the remaining time shows a
behaviour that the remaining time can be higher than the originally set
timeout.

Here is an example showing the problem, that the nsec value of it_value
is higher than the set nsec value: 
  timerfd_settime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=100000000) 
  timerfd_gettime: interval (sec=0, nsec=100000000) it_value (sec=0, nsec=103029949) 

This happens because in hrtimer_start_range_ns() the expiry time is
rounded to the next jiffies period to avoid short timeouts. When running
with HZ=250 this is 4ms which can be seen in the example above.

This behaviour confuses userspace programs. For example, the debian
liblinux-fd-perl and libnanomsg-raw-perl packges fail to build because
the timeout is higher than expected.

Fix this problem by subtracting the value added by
hrtimer_start_range_ns() before returning the timeout back to userspace.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/fs/timerfd.c b/fs/timerfd.c
index b94fa6c..098ac0a 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -152,8 +152,17 @@ static ktime_t timerfd_get_remaining(struct timerfd_ctx *ctx)
 
 	if (isalarm(ctx))
 		remaining = alarm_expires_remaining(&ctx->t.alarm);
-	else
+	else {
 		remaining = hrtimer_expires_remaining(&ctx->t.tmr);
+#ifdef CONFIG_TIME_LOW_RES
+		/* Expiry time was rounded up in hrtimer_start_range_ns()
+		 * to the next jiffies period to avoid short timeouts.
+		 * Subtract it here again to avoid userspace seeing higher
+		 * values than originally programmed. */
+		if (!(ctx->settime_flags & TFD_TIMER_ABSTIME))
+			remaining.tv64 -= hrtimer_resolution;
+#endif
+	}
 
 	return remaining.tv64 < 0 ? ktime_set(0, 0): remaining;
 }

From - Thu Nov 08 21:38:19 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.kernel.next,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: linux-next: strange commit in the parisc-hd tree
Date: Mon, 11 Jan 2016 09:28:22 +1100
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Hi all,

I noticed the following commit in the parisc-hd tree today:

  43122681dd75 ("Fix __ARCH_SI_PREAMBLE_SIZE on parisc")

which among other things says:

  This patch is not planned to be committed as it currently is.

It also has no Signed-off-by :-(

Please remove it from linux-next inclusion until it is ready.  Delibeately
introducing a patch to linux-next that may well cause build breakage
in other architectures just before the merge window opens is a bit
antisocial.

I will merge a revert commit for it today.

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v4 01/13] tty: serial: 8250: Fix whitespace errors
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	phillip.raffeck@fau.de
To: Anton Wuerfel <anton.wuerfel@fau.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On Fri, 2016-01-08 at 18:43 +0100, Anton Wuerfel wrote:
> This patch fixes whitespace errors reported by checkpatch to increase
> readability. Main focus is on missing spaces after commas in
> function headers and macros (like foo,bar edited to foo, bar).
>=20
> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> CC: linux-kernel@i4.cs.fau.de

Cc: looks more standard.

> --- a/drivers/tty/serial/8250/8250_accent.c
> +++ b/drivers/tty/serial/8250/8250_accent.c
> @@ -10,7 +10,7 @@
> =C2=A0#include <linux/init.h>
> =C2=A0#include <linux/serial_8250.h>
> =C2=A0
> -#define PORT(_base,_irq)				\
> +#define PORT(_base, _irq)				\
> =C2=A0	{						\
> =C2=A0		.iobase		=3D _base,		\
> =C2=A0		.irq		=3D _irq,			\
>=20

While those are okay, I would suggest to make a macro in
drivers/=E2=80=A6/8250.h one for all, something like this:

#define 8250_PORT_FLAGS(_base, _irq, _flags)
=E2=80=A6
	.flags=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=3D =
UPF_BOOT_AUTOCONF | (_flags) \

#define 8250_PORT(_base, _irq)	8250_PORT_FLAGS(_base, _irq, 0)

And use it.

> --- a/drivers/tty/serial/8250/8250_boca.c
> +++ b/drivers/tty/serial/8250/8250_boca.c
> @@ -10,7 +10,7 @@
> =C2=A0#include <linux/init.h>
> =C2=A0#include <linux/serial_8250.h>
> =C2=A0
> -#define PORT(_base,_irq)				\
> +#define PORT(_base, _irq)				\
> =C2=A0	{						\
> =C2=A0		.iobase		=3D _base,		\
> =C2=A0		.irq		=3D _irq,			\
>=20

> --- a/drivers/tty/serial/8250/8250_exar_st16c554.c
> +++ b/drivers/tty/serial/8250/8250_exar_st16c554.c
> @@ -13,7 +13,7 @@
> =C2=A0#include <linux/init.h>
> =C2=A0#include <linux/serial_8250.h>
> =C2=A0
> -#define PORT(_base,_irq)				\
> +#define PORT(_base, _irq)				\
> =C2=A0	{						\
> =C2=A0		.iobase		=3D _base,		\
> =C2=A0		.irq		=3D _irq,			\
>=20

> --- a/drivers/tty/serial/8250/8250_fourport.c
> +++ b/drivers/tty/serial/8250/8250_fourport.c
> @@ -10,7 +10,7 @@
> =C2=A0#include <linux/init.h>
> =C2=A0#include <linux/serial_8250.h>
> =C2=A0
> -#define PORT(_base,_irq)					=09
> \
> +#define PORT(_base, _irq)					=09
> \
> =C2=A0	{							=09
> \
> =C2=A0		.iobase		=3D _base,		=09
> 	\
> =C2=A0		.irq		=3D _irq,			=09
> 	\



--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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From - Thu Nov 08 21:38:20 2018
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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v4 05/13] tty: serial: 8250: Remove else after return
Date: Mon, 11 Jan 2016 14:30:29 +0200
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	phillip.raffeck@fau.de
To: Anton Wuerfel <anton.wuerfel@fau.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On Fri, 2016-01-08 at 18:43 +0100, Anton Wuerfel wrote:
> This patch fixes checkpatch warnings about unnecessary else blocks
> after
> return statements.

> --- a/drivers/tty/serial/8250/8250_pci.c
> +++ b/drivers/tty/serial/8250/8250_pci.c
> @@ -805,10 +805,10 @@ static int pci_netmos_9900_numports(struct
> pci_dev *dev)
> =C2=A0
> =C2=A0	pi =3D (c & 0xff);

And here the parens are redundant.

> =C2=A0
> -	if (pi =3D=3D 2) {
> +	if (pi =3D=3D 2)
> =C2=A0		return 1;
> -	} else if ((pi =3D=3D 0) &&
> -			=C2=A0=C2=A0=C2=A0(dev->device =3D=3D
> PCI_DEVICE_ID_NETMOS_9900)) {
> +
> +	if ((pi =3D=3D 0) && (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)=
)
> {

--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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From - Thu Nov 08 21:38:20 2018
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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v4 10/13] tty: serial: 8250: Suitably replace printk
Date: Mon, 11 Jan 2016 14:38:34 +0200
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
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To: Anton Wuerfel <anton.wuerfel@fau.de>,
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On Fri, 2016-01-08 at 18:43 +0100, Anton Wuerfel wrote:
> From: Phillip Raffeck <phillip.raffeck@fau.de>
>=20
> This patch replaces printk by the corresponding variant of dev_* in
> order
> to fix checkpatch warnings. If no suitable device pointer is present,
> the
> corresponding pr_* variant is used.
>=20

> --- a/drivers/tty/serial/8250/8250_hp300.c
> +++ b/drivers/tty/serial/8250/8250_hp300.c
>=20

> @@ -141,13 +141,13 @@ int __init hp300_setup_serial_console(void)
> =C2=A0		if (DIO_ID(pa + DIO_VIRADDRBASE) & 0x80)
> =C2=A0			add_preferred_console("ttyS", port.line,
> "9600n8");
> =C2=A0#else
> -		printk(KERN_WARNING "Serial console is DCA but
> support is disabled (CONFIG_HPDCA)!\n");
> +		pr_warn("Serial console is DCA but support is
> disabled (CONFIG_HPDCA)!\n");
> =C2=A0		return 0;
> =C2=A0#endif
> =C2=A0	}
> =C2=A0
> =C2=A0	if (early_serial_setup(&port) < 0)
> -		printk(KERN_WARNING "hp300_setup_serial_console():
> early_serial_setup() failed.\n");
> +		pr_warn("hp300_setup_serial_console():
> early_serial_setup() failed.\n");

%s:=E2=80=A6, __func__ ?

> =C2=A0	return 0;
> =C2=A0}
> =C2=A0#endif /* CONFIG_SERIAL_8250_CONSOLE */
> @@ -179,8 +179,9 @@ static int hpdca_init_one(struct dio_dev *d,
> =C2=A0	line =3D serial8250_register_8250_port(&uart);
> =C2=A0
> =C2=A0	if (line < 0) {
> -		printk(KERN_NOTICE "8250_hp300: register_serial()
> DCA scode %d"
> -		=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0" irq %d failed\n", d->s=
code, uart.port.irq);
> +		dev_notice(&d->dev,
> +			=C2=A0=C2=A0"8250_hp300: register_serial() DCA scode
> %d irq %d failed\n",
> +			=C2=A0=C2=A0d->scode, uart.port.irq);
> =C2=A0		return -ENOMEM;
> =C2=A0	}
> =C2=A0
> @@ -260,8 +261,8 @@ static int __init hp300_8250_init(void)
> =C2=A0		line =3D serial8250_register_8250_port(&uart);
> =C2=A0
> =C2=A0		if (line < 0) {
> -			printk(KERN_NOTICE "8250_hp300:
> register_serial() APCI"
> -			=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0" %d irq %d failed\n", =
i,
> uart.port.irq);
> +			pr_notice("8250_hp300: register_serial()
> APCI %d irq %d failed\n",
> +				=C2=A0=C2=A0i, uart.port.irq);

Inconsistent with dev_notice() above. Choose one which is most suitable
here.

--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v4 12/13] tty: serial: 8250: Removed warning in debug
 output
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On Fri, 2016-01-08 at 18:43 +0100, Anton Wuerfel wrote:
> This patch fixes type warnings in a debug output in 8250_pnp.c.
> Those warnings never got triggered, because the command was nested
> in an #ifdef, which is removed by a patch of this series.

Would be nice to cite the warning line from compiler or sparse (which
one, btw?)

Also, patch does not fix a warning. Rephrase title and commit message
in an appropriate way.

>=20
> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> CC: linux-kernel@i4.cs.fau.de
> ---
> =C2=A0drivers/tty/serial/8250/8250_pnp.c | 4 ++--
> =C2=A01 file changed, 2 insertions(+), 2 deletions(-)
>=20
> diff --git a/drivers/tty/serial/8250/8250_pnp.c
> b/drivers/tty/serial/8250/8250_pnp.c
> index ba3a1af..e99282f 100644
> --- a/drivers/tty/serial/8250/8250_pnp.c
> +++ b/drivers/tty/serial/8250/8250_pnp.c
> @@ -465,8 +465,8 @@ serial_pnp_probe(struct pnp_dev *dev, const
> struct pnp_device_id *dev_id)
> =C2=A0		return -ENODEV;
> =C2=A0
> =C2=A0	dev_dbg(&dev->dev,
> -		=C2=A0"Setup PNP port: port %x, mem 0x%lx, irq %d, type
> %d\n",
> -		=C2=A0uart.port.iobase, uart.port.mapbase,
> +		=C2=A0"Setup PNP port: port %lx, mem 0x%lx, irq %d, type
> %d\n",
> +		=C2=A0uart.port.iobase, (unsigned long)
> uart.port.mapbase,

No need to have a space after ).

> =C2=A0		=C2=A0uart.port.irq, uart.port.iotype);
> =C2=A0
> =C2=A0	if (flags & CIR_PORT) {

--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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Subject: Re: [PATCH v4 13/13] tty: serial: 8250: Fix indentation warnings
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	Helge Deller <deller@gmx.de>,
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On Fri, 2016-01-08 at 18:43 +0100, Anton Wuerfel wrote:
> Checkpatch complains about incorrect indentation of switch/case
> statements.
> This patch fixes the corresponding warnings. Additionally some
> indentation
> is changed to match the correct format specified in the Linux Kernel
> Coding Style.
>=20
> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> CC: linux-kernel@i4.cs.fau.de
> ---
> =C2=A0drivers/tty/serial/8250/8250_pci.c=C2=A0=C2=A0| 12 ++++++------
> =C2=A0drivers/tty/serial/8250/8250_pnp.c=C2=A0=C2=A0|=C2=A0=C2=A04 ++=
--
> =C2=A0drivers/tty/serial/8250/8250_port.c |=C2=A0=C2=A06 +++---
> =C2=A03 files changed, 11 insertions(+), 11 deletions(-)
>=20
> diff --git a/drivers/tty/serial/8250/8250_pci.c
> b/drivers/tty/serial/8250/8250_pci.c
> index 09157fa..b0b47f9 100644
> --- a/drivers/tty/serial/8250/8250_pci.c
> +++ b/drivers/tty/serial/8250/8250_pci.c
> @@ -841,12 +841,12 @@ static int pci_netmos_init(struct pci_dev *dev)
> =C2=A0		return 0;
> =C2=A0
> =C2=A0	switch (dev->device) { /* FALLTHROUGH on all */
> -		case PCI_DEVICE_ID_NETMOS_9904:
> -		case PCI_DEVICE_ID_NETMOS_9912:
> -		case PCI_DEVICE_ID_NETMOS_9922:
> -		case PCI_DEVICE_ID_NETMOS_9900:
> -			num_serial =3D pci_netmos_9900_numports(dev);
> -			break;
> +	case PCI_DEVICE_ID_NETMOS_9904:
> +	case PCI_DEVICE_ID_NETMOS_9912:
> +	case PCI_DEVICE_ID_NETMOS_9922:
> +	case PCI_DEVICE_ID_NETMOS_9900:
> +		num_serial =3D pci_netmos_9900_numports(dev);
> +		break;
> =C2=A0
> =C2=A0		default:

You forget to shift above line as well.

> =C2=A0			if (num_serial =3D=3D 0) {

But before doing that I would suggest to refactor the warning message
below in the code: copy it out of 'default:' to below condition and
replace by 'break;' inside the switch-case.

--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy



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From: "Shevchenko, Andriy" <andriy.shevchenko@intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v4 01/13] tty: serial: 8250: Fix whitespace errors
Date: Mon, 11 Jan 2016 12:50:18 +0000
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Subject: Re: [PATCH v4 01/13] tty: serial: 8250: Fix whitespace errors
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"Shevchenko, Andriy" <andriy.shevchenko@intel.com> writes:

> On Mon, 2016-01-11 at 14:28 +0200, Andy Shevchenko wrote:
>> On Fri, 2016-01-08 at 18:43 +0100, Anton Wuerfel wrote:
>> > This patch fixes whitespace errors reported by checkpatch to
>> > increase
>> > readability. Main focus is on missing spaces after commas in
>> > function headers and macros (like foo,bar edited to foo, bar).
>> >=20
>> > Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
>> > Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
>> > CC: linux-kernel@i4.cs.fau.de
>>=20
>> Cc: looks more standard.
>>=20
>> > --- a/drivers/tty/serial/8250/8250_accent.c
>> > +++ b/drivers/tty/serial/8250/8250_accent.c
>> > @@ -10,7 +10,7 @@
>> > =C2=A0#include <linux/init.h>
>> > =C2=A0#include <linux/serial_8250.h>
>> > =C2=A0
>> > -#define PORT(_base,_irq)				\
>> > +#define PORT(_base, _irq)				\
>> > =C2=A0	{						\
>> > =C2=A0		.iobase		=3D _base,		\
>> > =C2=A0		.irq		=3D _irq,		=09
>> > \
>
> 8250_PORT()
>
>> >=20
>>=20
>> While those are okay, I would suggest to make a macro in
>> drivers/=E2=80=A6/8250.h one for all, something like this:
>>=20
>> #define 8250_PORT_FLAGS(_base, _irq, _flags)
>> =E2=80=A6
>> 	.flags=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=3D=
 UPF_BOOT_AUTOCONF | (_flags) \
>>=20
>> #define 8250_PORT(_base, _irq)	8250_PORT_FLAGS(_base, _irq, 0)
>>=20
>> And use it.
>
> #define 8250_FOURPORT(_base, _irq)	8250_PORT_FLAGS(_base, _irq,
> UPF_FOURPORT)

Macro names can't start with a number.

--=20
M=C3=A5ns Rullg=C3=A5rd


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On 10.01.2016 23:28, Stephen Rothwell wrote:
> I noticed the following commit in the parisc-hd tree today:
> 
>   43122681dd75 ("Fix __ARCH_SI_PREAMBLE_SIZE on parisc")
> 
> which among other things says:
> 
>   This patch is not planned to be committed as it currently is.

Right, I split it up into two.

> [...] Please remove it from linux-next inclusion until it is ready.

Sure, I just removed it now.

> Delibeately introducing a patch to linux-next that may well cause build breakage
> in other architectures just before the merge window opens is a bit antisocial.

That was in no way my intention.
In contrary, I wanted to see if other platforms are affected by the same bug without knowing.
Do you by any chance know if it broke some of the existing platforms?
If yes, that would be valuable info...

Just in case people want to know what this is all about:
On parisc I found __ARCH_SI_PREAMBLE_SIZE to have a wrong value in 64bit kernel builds.
Patch which fixes it is here:
https://patchwork.kernel.org/patch/7994821/

To prevent other (existing and future) architectures to run into the same
problem I wanted to test this patch via linux-next and inform them:
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=test__ARCH_SI_PREAMBLE_SIZE

Helge
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From - Thu Nov 08 21:38:20 2018
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Hi Helge,

On Mon, 11 Jan 2016 22:46:48 +0100 Helge Deller <deller@gmx.de> wrote:
>
> On 10.01.2016 23:28, Stephen Rothwell wrote:
> > I noticed the following commit in the parisc-hd tree today:
> > 
> >   43122681dd75 ("Fix __ARCH_SI_PREAMBLE_SIZE on parisc")
> > 
> > which among other things says:
> > 
> >   This patch is not planned to be committed as it currently is.  
> 
> Right, I split it up into two.

Good idea.

> > [...] Please remove it from linux-next inclusion until it is ready.  
> 
> Sure, I just removed it now.

Thanks.

> > Delibeately introducing a patch to linux-next that may well cause build breakage
> > in other architectures just before the merge window opens is a bit antisocial.  
> 
> That was in no way my intention.
> In contrary, I wanted to see if other platforms are affected by the same bug without knowing.
> Do you by any chance know if it broke some of the existing platforms?
> If yes, that would be valuable info...

No, because I took it out of linux-next yesterday.  It is more a timing
thing, if you had done that a few weeks ago, I would have just reported
any build errors and continued on, but just before the merge window
opens we don;t need the distraction.  Also, if you can create another
branch and give it to the zero day build farm, you should get better
feed back.

Also, linux-next is not supposed to contain patches without a
Signed-off-by ...
-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

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On Mon, 2016-01-11 at 22:46 +0100, Helge Deller wrote:
> On 10.01.2016 23:28, Stephen Rothwell wrote:
> > I noticed the following commit in the parisc-hd tree today:
> > 
> >   43122681dd75 ("Fix __ARCH_SI_PREAMBLE_SIZE on parisc")
> > 
> > which among other things says:
> > 
> >   This patch is not planned to be committed as it currently is.
> 
> Right, I split it up into two.
> 
> > [...] Please remove it from linux-next inclusion until it is ready.
> 
> Sure, I just removed it now.
> 
> > Delibeately introducing a patch to linux-next that may well cause build breakage
> > in other architectures just before the merge window opens is a bit antisocial.
> 
> That was in no way my intention.
> In contrary, I wanted to see if other platforms are affected by the same bug without knowing.
> Do you by any chance know if it broke some of the existing platforms?
> If yes, that would be valuable info...
> 
> Just in case people want to know what this is all about:
> On parisc I found __ARCH_SI_PREAMBLE_SIZE to have a wrong value in 64bit kernel builds.
> Patch which fixes it is here:
> https://patchwork.kernel.org/patch/7994821/
> 
> To prevent other (existing and future) architectures to run into the same
> problem I wanted to test this patch via linux-next and inform them:
> http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=test__ARCH_SI_PREAMBLE_SIZE

That doesn't fire on powerpc, ie. we have it correct.

Though I wonder why it's not just defined using offsetof? Possibly just that
it's awkward with the way the headers are organised.

cheers


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On 11.01.2016 23:39, Michael Ellerman wrote:
> On Mon, 2016-01-11 at 22:46 +0100, Helge Deller wrote:
>> On 10.01.2016 23:28, Stephen Rothwell wrote:
>>> I noticed the following commit in the parisc-hd tree today:
>>>
>>>   43122681dd75 ("Fix __ARCH_SI_PREAMBLE_SIZE on parisc")
>>>
>>> which among other things says:
>>>
>>>   This patch is not planned to be committed as it currently is.
>>
>> Right, I split it up into two.
>>
>>> [...] Please remove it from linux-next inclusion until it is ready.
>>
>> Sure, I just removed it now.
>>
>>> Delibeately introducing a patch to linux-next that may well cause build breakage
>>> in other architectures just before the merge window opens is a bit antisocial.
>>
>> That was in no way my intention.
>> In contrary, I wanted to see if other platforms are affected by the same bug without knowing.
>> Do you by any chance know if it broke some of the existing platforms?
>> If yes, that would be valuable info...
>>
>> Just in case people want to know what this is all about:
>> On parisc I found __ARCH_SI_PREAMBLE_SIZE to have a wrong value in 64bit kernel builds.
>> Patch which fixes it is here:
>> https://patchwork.kernel.org/patch/7994821/
>>
>> To prevent other (existing and future) architectures to run into the same
>> problem I wanted to test this patch via linux-next and inform them:
>> http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=test__ARCH_SI_PREAMBLE_SIZE
> 
> That doesn't fire on powerpc, ie. we have it correct.

It really seems that parisc was the only architecture left which had a wrong value for __ARCH_SI_PREAMBLE_SIZE.
I followed Stephens suggestion to try it via the zero day build farm and it was only reported one problem (for parisc).
Tree is here: http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/log/?h=for-next-test
 
> Though I wonder why it's not just defined using offsetof? Possibly just that
> it's awkward with the way the headers are organised.

Yes.

Helge


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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 14/15] tty: serial: 8250: Add generic port init macro
Date: Wed, 13 Jan 2016 17:39:30 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Anton Wuerfel <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch removes redundant 8250 port initialization macros and
replaces them by a single generic base-macro, which is specialized
as needed.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250.h               | 12 ++++++++
 drivers/tty/serial/8250/8250_accent.c        | 13 ++-------
 drivers/tty/serial/8250/8250_boca.c          | 41 ++++++++++++--------=
--------
 drivers/tty/serial/8250/8250_exar_st16c554.c | 17 ++++--------
 drivers/tty/serial/8250/8250_fourport.c      | 28 ++++++++-----------
 5 files changed, 49 insertions(+), 62 deletions(-)

diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8=
250.h
index d54dcd8..4672ab4 100644
--- a/drivers/tty/serial/8250/8250.h
+++ b/drivers/tty/serial/8250/8250.h
@@ -92,6 +92,18 @@ struct serial8250_config {
 #define SERIAL8250_SHARE_IRQS 0
 #endif
=20
+#define SERIAL8250_PORT_FLAGS(_base, _irq, _flags)		\
+	{							\
+		.iobase		=3D _base,			\
+		.irq		=3D _irq,				\
+		.uartclk	=3D 1843200,			\
+		.iotype		=3D UPIO_PORT,			\
+		.flags		=3D UPF_BOOT_AUTOCONF | (_flags),	\
+	}
+
+#define SERIAL8250_PORT(_base, _irq) SERIAL8250_PORT_FLAGS(_base, _irq=
, 0)
+
+
 static inline int serial_in(struct uart_8250_port *up, int offset)
 {
 	return up->port.serial_in(&up->port, offset);
diff --git a/drivers/tty/serial/8250/8250_accent.c b/drivers/tty/serial=
/8250/8250_accent.c
index 34b51c6..522aeae 100644
--- a/drivers/tty/serial/8250/8250_accent.c
+++ b/drivers/tty/serial/8250/8250_accent.c
@@ -10,18 +10,11 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
-	{						\
-		.iobase		=3D _base,		\
-		.irq		=3D _irq,			\
-		.uartclk	=3D 1843200,		\
-		.iotype		=3D UPIO_PORT,		\
-		.flags		=3D UPF_BOOT_AUTOCONF,	\
-	}
+#include "8250.h"
=20
 static struct plat_serial8250_port accent_data[] =3D {
-	PORT(0x330, 4),
-	PORT(0x338, 4),
+	SERIAL8250_PORT(0x330, 4),
+	SERIAL8250_PORT(0x338, 4),
 	{ },
 };
=20
diff --git a/drivers/tty/serial/8250/8250_boca.c b/drivers/tty/serial/8=
250/8250_boca.c
index d125dc1..a63b599 100644
--- a/drivers/tty/serial/8250/8250_boca.c
+++ b/drivers/tty/serial/8250/8250_boca.c
@@ -10,32 +10,25 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
-	{						\
-		.iobase		=3D _base,		\
-		.irq		=3D _irq,			\
-		.uartclk	=3D 1843200,		\
-		.iotype		=3D UPIO_PORT,		\
-		.flags		=3D UPF_BOOT_AUTOCONF,	\
-	}
+#include "8250.h"
=20
 static struct plat_serial8250_port boca_data[] =3D {
-	PORT(0x100, 12),
-	PORT(0x108, 12),
-	PORT(0x110, 12),
-	PORT(0x118, 12),
-	PORT(0x120, 12),
-	PORT(0x128, 12),
-	PORT(0x130, 12),
-	PORT(0x138, 12),
-	PORT(0x140, 12),
-	PORT(0x148, 12),
-	PORT(0x150, 12),
-	PORT(0x158, 12),
-	PORT(0x160, 12),
-	PORT(0x168, 12),
-	PORT(0x170, 12),
-	PORT(0x178, 12),
+	SERIAL8250_PORT(0x100, 12),
+	SERIAL8250_PORT(0x108, 12),
+	SERIAL8250_PORT(0x110, 12),
+	SERIAL8250_PORT(0x118, 12),
+	SERIAL8250_PORT(0x120, 12),
+	SERIAL8250_PORT(0x128, 12),
+	SERIAL8250_PORT(0x130, 12),
+	SERIAL8250_PORT(0x138, 12),
+	SERIAL8250_PORT(0x140, 12),
+	SERIAL8250_PORT(0x148, 12),
+	SERIAL8250_PORT(0x150, 12),
+	SERIAL8250_PORT(0x158, 12),
+	SERIAL8250_PORT(0x160, 12),
+	SERIAL8250_PORT(0x168, 12),
+	SERIAL8250_PORT(0x170, 12),
+	SERIAL8250_PORT(0x178, 12),
 	{ },
 };
=20
diff --git a/drivers/tty/serial/8250/8250_exar_st16c554.c b/drivers/tty=
/serial/8250/8250_exar_st16c554.c
index bf53aab..3a7cb82 100644
--- a/drivers/tty/serial/8250/8250_exar_st16c554.c
+++ b/drivers/tty/serial/8250/8250_exar_st16c554.c
@@ -13,20 +13,13 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
-	{						\
-		.iobase		=3D _base,		\
-		.irq		=3D _irq,			\
-		.uartclk	=3D 1843200,		\
-		.iotype		=3D UPIO_PORT,		\
-		.flags		=3D UPF_BOOT_AUTOCONF,	\
-	}
+#include "8250.h"
=20
 static struct plat_serial8250_port exar_data[] =3D {
-	PORT(0x100, 5),
-	PORT(0x108, 5),
-	PORT(0x110, 5),
-	PORT(0x118, 5),
+	SERIAL8250_PORT(0x100, 5),
+	SERIAL8250_PORT(0x108, 5),
+	SERIAL8250_PORT(0x110, 5),
+	SERIAL8250_PORT(0x118, 5),
 	{ },
 };
=20
diff --git a/drivers/tty/serial/8250/8250_fourport.c b/drivers/tty/seri=
al/8250/8250_fourport.c
index be15826..4045180 100644
--- a/drivers/tty/serial/8250/8250_fourport.c
+++ b/drivers/tty/serial/8250/8250_fourport.c
@@ -10,24 +10,20 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)						\
-	{								\
-		.iobase		=3D _base,				\
-		.irq		=3D _irq,					\
-		.uartclk	=3D 1843200,				\
-		.iotype		=3D UPIO_PORT,				\
-		.flags		=3D UPF_BOOT_AUTOCONF | UPF_FOURPORT,	\
-	}
+#include "8250.h"
+
+#define SERIAL8250_FOURPORT(_base, _irq) \
+	SERIAL8250_PORT_FLAGS(_base, _irq, UPF_FOURPORT)
=20
 static struct plat_serial8250_port fourport_data[] =3D {
-	PORT(0x1a0, 9),
-	PORT(0x1a8, 9),
-	PORT(0x1b0, 9),
-	PORT(0x1b8, 9),
-	PORT(0x2a0, 5),
-	PORT(0x2a8, 5),
-	PORT(0x2b0, 5),
-	PORT(0x2b8, 5),
+	SERIAL8250_FOURPORT(0x1a0, 9),
+	SERIAL8250_FOURPORT(0x1a8, 9),
+	SERIAL8250_FOURPORT(0x1b0, 9),
+	SERIAL8250_FOURPORT(0x1b8, 9),
+	SERIAL8250_FOURPORT(0x2a0, 5),
+	SERIAL8250_FOURPORT(0x2a8, 5),
+	SERIAL8250_FOURPORT(0x2b0, 5),
+	SERIAL8250_FOURPORT(0x2b8, 5),
 	{ },
 };
=20
--=20
1.9.1



From - Thu Nov 08 21:38:21 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 11/15] tty: serial: 8250: Remove SERIAL_DEBUG_PNP macro
Date: Wed, 13 Jan 2016 17:39:27 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	=?UTF-8?q?Anton=20W=C3=BCr
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46rom: Phillip Raffeck <phillip.raffeck@fau.de>

This patch removes the macro SERIAL_DEBUG_PNP, which is used to enable
debugging at compile time.
As SERIAL_DEBUG_PNP is an orphan, the corresponding #ifdef is removed.
To keep the ability to enable debugging at compile time,
the call to printk(KERN_DEBUG ...) is replaced by a corresponding
call to dev_dbg(), which is configurable via CONFIG_DYNAMIC_DEBUG.

Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pnp.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index ffa7354..ba3a1af 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -464,11 +464,11 @@ serial_pnp_probe(struct pnp_dev *dev, const struc=
t pnp_device_id *dev_id)
 	} else
 		return -ENODEV;
=20
-#ifdef SERIAL_DEBUG_PNP
-	printk(KERN_DEBUG
-		"Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
-		       uart.port.iobase, uart.port.mapbase, uart.port.irq, uart.port=
=2Eiotype);
-#endif
+	dev_dbg(&dev->dev,
+		 "Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
+		 uart.port.iobase, uart.port.mapbase,
+		 uart.port.irq, uart.port.iotype);
+
 	if (flags & CIR_PORT) {
 		uart.port.flags |=3D UPF_FIXED_PORT | UPF_FIXED_TYPE;
 		uart.port.type =3D PORT_8250_CIR;
--=20
1.9.1



From - Thu Nov 08 21:38:21 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 15/15] tty: serial: 8250: Merge duplicate conditions
Date: Wed, 13 Jan 2016 17:39:31 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Anton Wuerfel <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch refactors a switch case statement by merging an if condition
in the default case into an identical condition right after the switch
statement.
This comes with a slight change in behaviour: If pci_netmos_9900_numpor=
ts
returns 0, an additional warning is printed.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 1dd607f..50ab301 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -854,8 +854,10 @@ static int pci_netmos_init(struct pci_dev *dev)
 		}
 	}
=20
-	if (num_serial =3D=3D 0)
+	if (num_serial =3D=3D 0) {
+		moan_device("unknown NetMos/Mostech device", dev);
 		return -ENODEV;
+	}
=20
 	return num_serial;
 }
--=20
1.9.1



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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 13/15] tty: serial: 8250: Fix indentation warnings
Date: Wed, 13 Jan 2016 17:39:29 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Anton Wuerfel <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Checkpatch complains about incorrect indentation of switch/case stateme=
nts.
This patch fixes the corresponding warnings. Additionally some indentat=
ion
is changed to match the correct format specified in the Linux Kernel
Coding Style.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c  | 20 ++++++++++----------
 drivers/tty/serial/8250/8250_pnp.c  |  4 ++--
 drivers/tty/serial/8250/8250_port.c |  6 +++---
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 433afdd..1dd607f 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -841,17 +841,17 @@ static int pci_netmos_init(struct pci_dev *dev)
 		return 0;
=20
 	switch (dev->device) { /* FALLTHROUGH on all */
-		case PCI_DEVICE_ID_NETMOS_9904:
-		case PCI_DEVICE_ID_NETMOS_9912:
-		case PCI_DEVICE_ID_NETMOS_9922:
-		case PCI_DEVICE_ID_NETMOS_9900:
-			num_serial =3D pci_netmos_9900_numports(dev);
-			break;
+	case PCI_DEVICE_ID_NETMOS_9904:
+	case PCI_DEVICE_ID_NETMOS_9912:
+	case PCI_DEVICE_ID_NETMOS_9922:
+	case PCI_DEVICE_ID_NETMOS_9900:
+		num_serial =3D pci_netmos_9900_numports(dev);
+		break;
=20
-		default:
-			if (num_serial =3D=3D 0) {
-				moan_device("unknown NetMos/Mostech device", dev);
-			}
+	default:
+		if (num_serial =3D=3D 0) {
+			moan_device("unknown NetMos/Mostech device", dev);
+		}
 	}
=20
 	if (num_serial =3D=3D 0)
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 9305591..a11180d 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -427,8 +427,8 @@ static int check_resources(struct pnp_dev *dev)
 static int serial_pnp_guess_board(struct pnp_dev *dev)
 {
 	if (!(check_name(pnp_dev_name(dev)) ||
-		(dev->card && check_name(dev->card->name))))
-			return -ENODEV;
+	    (dev->card && check_name(dev->card->name))))
+		return -ENODEV;
=20
 	if (check_resources(dev))
 		return 0;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 343d050..da3b240 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2235,9 +2235,9 @@ static void serial8250_set_divisor(struct uart_po=
rt *port, unsigned int baud,
 		serial_port_out(port, 0x2, quot_frac);
 }
=20
-static unsigned int
-serial8250_get_baud_rate(struct uart_port *port, struct ktermios *term=
ios,
-			 struct ktermios *old)
+static unsigned int serial8250_get_baud_rate(struct uart_port *port,
+					     struct ktermios *termios,
+					     struct ktermios *old)
 {
 	unsigned int tolerance =3D port->uartclk / 100;
=20
--=20
1.9.1



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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 12/15] tty: serial: 8250: Correct conversion specifiers
Date: Wed, 13 Jan 2016 17:39:28 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Anton Wuerfel <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes compiler warnings about wrong conversion specifiers us=
ed
in a debug output in 8250_pnp.c. The precise warning is:

drivers/tty/serial/8250/8250_pnp.c: In function =E2=80=98serial_pnp_pro=
be=E2=80=99:
include/linux/dynamic_debug.h:64:16: warning: format =E2=80=98%x=E2=80=99=
 expects argument
of [...]

include/linux/dynamic_debug.h:84:2: note: in expansion of macro
=E2=80=98DEFINE_DYNAMIC_DEBUG_METADATA=E2=80=99

include/linux/device.h:1179:2: note: in expansion of macro
=E2=80=98dynamic_dev_dbg=E2=80=99

drivers/tty/serial/8250/8250_pnp.c:467:2: note: in expansion of macro
=E2=80=98dev_dbg=E2=80=99
  dev_dbg(&dev->dev,
  ^
include/linux/dynamic_debug.h:64:16: warning: format =E2=80=98%lx=E2=80=
=99 expects argument
of [...]

include/linux/dynamic_debug.h:84:2: note: in expansion of macro
=E2=80=98DEFINE_DYNAMIC_DEBUG_METADATA=E2=80=99

include/linux/device.h:1179:2: note: in expansion of macro
=E2=80=98dynamic_dev_dbg=E2=80=99

drivers/tty/serial/8250/8250_pnp.c:467:2: note: in expansion of macro
=E2=80=98dev_dbg=E2=80=99
  dev_dbg(&dev->dev,
  ^

Those warnings never got triggered, because the command was nested
in an #ifdef, which is removed by a patch of this series.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pnp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index ba3a1af..9305591 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -465,8 +465,8 @@ serial_pnp_probe(struct pnp_dev *dev, const struct =
pnp_device_id *dev_id)
 		return -ENODEV;
=20
 	dev_dbg(&dev->dev,
-		 "Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
-		 uart.port.iobase, uart.port.mapbase,
+		 "Setup PNP port: port %lx, mem 0x%lx, irq %d, type %d\n",
+		 uart.port.iobase, (unsigned long)uart.port.mapbase,
 		 uart.port.irq, uart.port.iotype);
=20
 	if (flags & CIR_PORT) {
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 09/15] tty: serial: 8250: Fix multi-line strings
Date: Wed, 13 Jan 2016 17:39:25 +0100
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
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	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Anton Wuerfel <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merged user-visible multi-line strings into a single line according to =
the
Linux Kernel Coding Style, which allows user-visible strings to exceed =
the
maximum line length of 80 characters. The main reason for this is to
facilitate grepping for these strings.
However, some strings were ignored in this patch, because the use of
format specifiers breaks the ability to grep anyway.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 3 +--
 drivers/tty/serial/8250/serial_cs.c | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index d042ad5..b60b58b 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1173,8 +1173,7 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
 module_param(share_irqs, uint, 0644);
-MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices"
-	" (unsafe)");
+MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices (unsafe)");
=20
 module_param(nr_uarts, uint, 0644);
 MODULE_PARM_DESC(nr_uarts, "Maximum number of UARTs supported. (1-" __=
MODULE_STRING(CONFIG_SERIAL_8250_NR_UARTS) ")");
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 1f34867..1ab6bfc 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -533,8 +533,7 @@ static int multi_config(struct pcmcia_device *link)
 		info->multi =3D 2;
 		if (pcmcia_loop_config(link, multi_config_check_notpicky,
 				       &base2)) {
-			dev_warn(&link->dev, "no usable port range "
-			       "found, giving up\n");
+			dev_warn(&link->dev, "no usable port range found, giving up\n");
 			return -ENODEV;
 		}
 	}
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 08/15] tty: serial: 8250: Add parentheses to macro
Date: Wed, 13 Jan 2016 17:39:24 +0100
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
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To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes a checkpatch warning caused by missing parentheses
in the definition of a macro.
=46urthermore redundant parentheses are removed in an assignment.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 2 +-
 drivers/tty/serial/8250/8250_pci.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 15082ae..d042ad5 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -686,7 +686,7 @@ static int __init univ8250_console_init(void)
 }
 console_initcall(univ8250_console_init);
=20
-#define SERIAL8250_CONSOLE	&univ8250_console
+#define SERIAL8250_CONSOLE	(&univ8250_console)
 #else
 #define SERIAL8250_CONSOLE	NULL
 #endif
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 09157fa..433afdd 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -803,7 +803,7 @@ static int pci_netmos_9900_numports(struct pci_dev =
*dev)
 	unsigned int pi;
 	unsigned short sub_serports;
=20
-	pi =3D (c & 0xff);
+	pi =3D c & 0xff;
=20
 	if (pi =3D=3D 2)
 		return 1;
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 10/15] tty: serial: 8250: Suitably replace printk
Date: Wed, 13 Jan 2016 17:39:26 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
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	Paul Burton <paul.burton@imgtec.com>,
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	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	=?UTF-8?q?Anton=20W=C3=BCr
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46rom: Phillip Raffeck <phillip.raffeck@fau.de>

This patch replaces printk by the corresponding variant of dev_* in ord=
er
to fix checkpatch warnings. If no suitable device pointer is present, t=
he
corresponding pr_* variant is used.

Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c  |  5 ++---
 drivers/tty/serial/8250/8250_gsc.c   |  7 ++++---
 drivers/tty/serial/8250/8250_hp300.c | 20 +++++++++++---------
 drivers/tty/serial/8250/8250_port.c  |  3 +--
 4 files changed, 18 insertions(+), 17 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index b60b58b..d6b4906 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1094,9 +1094,8 @@ static int __init serial8250_init(void)
=20
 	serial8250_isa_init_ports();
=20
-	printk(KERN_INFO "Serial: 8250/16550 driver, "
-		"%d ports, IRQ sharing %sabled\n", nr_uarts,
-		share_irqs ? "en" : "dis");
+	pr_info("Serial: 8250/16550 driver, %d ports, IRQ sharing %sabled\n",
+		nr_uarts, share_irqs ? "en" : "dis");
=20
 #ifdef CONFIG_SPARC
 	ret =3D sunserial_register_minors(&serial8250_reg, UART_NR);
diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/82=
50/8250_gsc.c
index 2e3ea1a..b1e6ae9 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -42,7 +42,7 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
 		 * the user what they're missing.
 		 */
 		if (parisc_parent(dev)->id.hw_type !=3D HPHW_IOA)
-			printk(KERN_INFO
+			dev_info(&dev->dev,
 				"Serial: device 0x%llx not configured.\n"
 				"Enable support for Wax, Lasi, Asp or Dino.\n",
 				(unsigned long long)dev->hpa.start);
@@ -66,8 +66,9 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
=20
 	err =3D serial8250_register_8250_port(&uart);
 	if (err < 0) {
-		printk(KERN_WARNING
-			"serial8250_register_8250_port returned error %d\n", err);
+		dev_warn(&dev->dev,
+			"serial8250_register_8250_port returned error %d\n",
+			err);
 		iounmap(uart.port.membase);
 		return err;
 	}
diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index cf566bb..38166db 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -110,7 +110,7 @@ int __init hp300_setup_serial_console(void)
 	/* Check for APCI console */
 	if (scode =3D=3D 256) {
 #ifdef CONFIG_HPAPCI
-		printk(KERN_INFO "Serial console is HP APCI 1\n");
+		pr_info("Serial console is HP APCI 1\n");
=20
 		port.uartclk =3D HPAPCI_BAUD_BASE * 16;
 		port.mapbase =3D (FRODO_BASE + FRODO_APCI_OFFSET(1));
@@ -118,7 +118,7 @@ int __init hp300_setup_serial_console(void)
 		port.regshift =3D 2;
 		add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is APCI but support is disabled =
(CONFIG_HPAPCI)!\n");
+		pr_warn("Serial console is APCI but support is disabled (CONFIG_HPAP=
CI)!\n");
 		return 0;
 #endif
 	} else {
@@ -127,7 +127,7 @@ int __init hp300_setup_serial_console(void)
 		if (!pa)
 			return 0;
=20
-		printk(KERN_INFO "Serial console is HP DCA at select code %d\n", sco=
de);
+		pr_info("Serial console is HP DCA at select code %d\n", scode);
=20
 		port.uartclk =3D HPDCA_BAUD_BASE * 16;
 		port.mapbase =3D (pa + UART_OFFSET);
@@ -141,13 +141,13 @@ int __init hp300_setup_serial_console(void)
 		if (DIO_ID(pa + DIO_VIRADDRBASE) & 0x80)
 			add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is DCA but support is disabled (=
CONFIG_HPDCA)!\n");
+		pr_warn("Serial console is DCA but support is disabled (CONFIG_HPDCA=
)!\n");
 		return 0;
 #endif
 	}
=20
 	if (early_serial_setup(&port) < 0)
-		printk(KERN_WARNING "hp300_setup_serial_console(): early_serial_setu=
p() failed.\n");
+		pr_warn("%s: early_serial_setup() failed.\n", __func__);
 	return 0;
 }
 #endif /* CONFIG_SERIAL_8250_CONSOLE */
@@ -179,8 +179,9 @@ static int hpdca_init_one(struct dio_dev *d,
 	line =3D serial8250_register_8250_port(&uart);
=20
 	if (line < 0) {
-		printk(KERN_NOTICE "8250_hp300: register_serial() DCA scode %d"
-		       " irq %d failed\n", d->scode, uart.port.irq);
+		dev_notice(&d->dev,
+			  "8250_hp300: register_serial() DCA scode %d irq %d failed\n",
+			  d->scode, uart.port.irq);
 		return -ENOMEM;
 	}
=20
@@ -260,8 +261,9 @@ static int __init hp300_8250_init(void)
 		line =3D serial8250_register_8250_port(&uart);
=20
 		if (line < 0) {
-			printk(KERN_NOTICE "8250_hp300: register_serial() APCI"
-			       " %d irq %d failed\n", i, uart.port.irq);
+			dev_notice(uart.port.dev,
+				   "8250_hp300: register_serial() APCI %d irq %d failed\n",
+				   i, uart.port.irq);
 			kfree(port);
 			continue;
 		}
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 99f709c..343d050 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1222,8 +1222,7 @@ static void autoconfig(struct uart_8250_port *up)
 out_lock:
 	spin_unlock_irqrestore(&port->lock, flags);
 	if (up->capabilities !=3D old_capabilities) {
-		printk(KERN_WARNING
-		       "ttyS%d: detected caps %08x should be %08x\n",
+		pr_warn("ttyS%d: detected caps %08x should be %08x\n",
 		       serial_index(port), old_capabilities,
 		       up->capabilities);
 	}
--=20
1.9.1



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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 06/15] tty: serial: 8250: Move EXPORT_SYMBOL to function
Date: Wed, 13 Jan 2016 17:39:22 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
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	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
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	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Anton Wuerfel <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch moves EXPORT_SYMBOL macros directly after the definition of
the corresponding symbol to remove checkpatch warnings.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 3912646..15082ae 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -763,6 +763,7 @@ void serial8250_suspend_port(int line)
=20
 	uart_suspend_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_suspend_port);
=20
 /**
  *	serial8250_resume_port - resume one serial port
@@ -788,6 +789,7 @@ void serial8250_resume_port(int line)
 	}
 	uart_resume_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_resume_port);
=20
 /*
  * Register a set of serial devices attached to a platform device.  Th=
e
@@ -1167,9 +1169,6 @@ static void __exit serial8250_exit(void)
 module_init(serial8250_init);
 module_exit(serial8250_exit);
=20
-EXPORT_SYMBOL(serial8250_suspend_port);
-EXPORT_SYMBOL(serial8250_resume_port);
-
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
--=20
1.9.1



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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 02/15] tty: serial: 8250: Replace spaces with tabs
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Anton Wuerfel <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Indentation is changed to match the correct format of using tabs instea=
d
of spaces wherever possible.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c  | 12 ++++++------
 drivers/tty/serial/8250/8250_port.c |  4 ++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index ccf43cb..7f9f245 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -721,7 +721,7 @@ static int pci_ni8430_init(struct pci_dev *dev)
 	 */
 	pcibios_resource_to_bus(dev->bus, &region, &dev->resource[bar]);
 	device_window =3D ((region.start + MITE_IOWBSR1_WIN_OFFSET) & 0xfffff=
f00)
-	                | MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
+			| MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
 	writel(device_window, p + MITE_IOWBSR1);
=20
 	/* Set window access to go to RAMSEL IO address space */
@@ -1763,7 +1763,7 @@ xr17v35x_has_slave(struct serial_private *priv)
 	const int dev_id =3D priv->dev->device;
=20
 	return ((dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V4358) ||
-	        (dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
+		(dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
 }
=20
 static int
@@ -1863,8 +1863,8 @@ pci_fastcom335_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch353_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16550A;
@@ -1873,8 +1873,8 @@ pci_wch_ch353_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch38x_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16850;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 7f3bd7b..f2e588e 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -52,7 +52,7 @@
 #define DEBUG_AUTOCONF(fmt...)	do { } while (0)
 #endif
=20
-#define BOTH_EMPTY 	(UART_LSR_TEMT | UART_LSR_THRE)
+#define BOTH_EMPTY	(UART_LSR_TEMT | UART_LSR_THRE)
=20
 /*
  * Here we define the default xmit fifo size used for each type of UAR=
T.
@@ -2254,7 +2254,7 @@ serial8250_get_baud_rate(struct uart_port *port, =
struct ktermios *termios,
=20
 void
 serial8250_do_set_termios(struct uart_port *port, struct ktermios *ter=
mios,
-		          struct ktermios *old)
+			  struct ktermios *old)
 {
 	struct uart_8250_port *up =3D up_to_u8250p(port);
 	unsigned char cval;
--=20
1.9.1



From - Thu Nov 08 21:38:21 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 07/15] tty: serial: 8250: Fix line continuation warning
Date: Wed, 13 Jan 2016 17:39:23 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Anton Wuerfel <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46ixed checkpatch warning about an unnecessary line continuation in a
multi-line variable assignment.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 5e1b464..cf566bb 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -248,8 +248,8 @@ static int __init hp300_8250_init(void)
=20
 		/* Memory mapped I/O */
 		uart.port.iotype =3D UPIO_MEM;
-		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ \
-			      | UPF_BOOT_AUTOCONF;
+		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ
+				| UPF_BOOT_AUTOCONF;
 		/* XXX - no interrupt support yet */
 		uart.port.irq =3D 0;
 		uart.port.uartclk =3D HPAPCI_BAUD_BASE * 16;
--=20
1.9.1



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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 05/15] tty: serial: 8250: Remove else after return
Date: Wed, 13 Jan 2016 17:39:21 +0100
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Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Anton Wuerfel <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes checkpatch warnings about unnecessary else blocks afte=
r
return statements.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 7f9f245..09157fa 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -805,10 +805,10 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
=20
 	pi =3D (c & 0xff);
=20
-	if (pi =3D=3D 2) {
+	if (pi =3D=3D 2)
 		return 1;
-	} else if ((pi =3D=3D 0) &&
-			   (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) {
+
+	if ((pi =3D=3D 0) && (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) =
{
 		/* two possibilities: 0x30ps encodes number of parallel and
 		 * serial ports, or 0x1000 indicates *something*. This is not
 		 * immediately obvious, since the 2s1p+4s configuration seems
@@ -816,12 +816,11 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
 		 * advertising the same function 3 as the 4s+2s1p config.
 		 */
 		sub_serports =3D dev->subsystem_device & 0xf;
-		if (sub_serports > 0) {
+		if (sub_serports > 0)
 			return sub_serports;
-		} else {
-			dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on a=
mbiguous config.\n");
-			return 0;
-		}
+
+		dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on am=
biguous config.\n");
+		return 0;
 	}
=20
 	moan_device("unknown NetMos/Mostech program interface", dev);
--=20
1.9.1



From - Thu Nov 08 21:38:21 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 04/15] tty: serial: 8250: Fix multiline comment style
Date: Wed, 13 Jan 2016 17:39:20 +0100
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Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Anton Wuerfel <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Checkpatch outputs some warnings about incorrect comment style,
which is fixed by this patch.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_ingenic.c | 12 ++++++++----
 drivers/tty/serial/8250/8250_pnp.c     |  6 ++++--
 drivers/tty/serial/8250/8250_port.c    | 31 ++++++++++++++++----------=
-----
 drivers/tty/serial/8250/serial_cs.c    | 26 +++++++++++++++++---------
 4 files changed, 45 insertions(+), 30 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_ingenic.c b/drivers/tty/seria=
l/8250/8250_ingenic.c
index 49394b4..086bd00 100644
--- a/drivers/tty/serial/8250/8250_ingenic.c
+++ b/drivers/tty/serial/8250/8250_ingenic.c
@@ -152,14 +152,18 @@ static void ingenic_uart_serial_out(struct uart_p=
ort *p, int offset, int value)
 		break;
=20
 	case UART_IER:
-		/* Enable receive timeout interrupt with the
-		 * receive line status interrupt */
+		/*
+		 * Enable receive timeout interrupt with the
+		 * receive line status interrupt
+		 */
 		value |=3D (value & 0x4) << 2;
 		break;
=20
 	case UART_MCR:
-		/* If we have enabled modem status IRQs we should enable modem
-		 * mode. */
+		/*
+		 * If we have enabled modem status IRQs we should enable modem
+		 * mode.
+		 */
 		ier =3D p->serial_in(p, UART_IER);
=20
 		if (ier & UART_IER_MSI)
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 658b392..ffa7354 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -367,8 +367,10 @@ static const struct pnp_device_id pnp_dev_table[] =
=3D {
 	{	"PNPCXXX",		UNKNOWN_DEV	},
 	/* More unknown PnP modems */
 	{	"PNPDXXX",		UNKNOWN_DEV	},
-	/* Winbond CIR port, should not be probed. We should keep track
-	   of it to prevent the legacy serial driver from probing it */
+	/*
+	 * Winbond CIR port, should not be probed. We should keep track
+	 * of it to prevent the legacy serial driver from probing it
+	 */
 	{	"WEC1022",		CIR_PORT	},
 	/*
 	 * SMSC IrCC SIR/FIR port, should not be probed by serial driver
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index f2e588e..99f709c 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -250,9 +250,11 @@ static const struct serial8250_config uart_config[=
] =3D {
 		.fcr		=3D UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
 		.flags		=3D UART_CAP_FIFO | UART_CAP_AFE,
 	},
-/* tx_loadsz is set to 63-bytes instead of 64-bytes to implement
-workaround of errata A-008006 which states that tx_loadsz should  be
-configured less than Maximum supported fifo bytes */
+	/*
+	 * tx_loadsz is set to 63-bytes instead of 64-bytes to implement
+	 * workaround of errata A-008006 which states that tx_loadsz should b=
e
+	 * configured less than Maximum supported fifo bytes
+	 */
 	[PORT_16550A_FSL64] =3D {
 		.name		=3D "16550A_FSL64",
 		.fifo_size	=3D 64,
@@ -1969,23 +1971,22 @@ int serial8250_do_startup(struct uart_port *por=
t)
=20
 	serial8250_set_mctrl(port, port->mctrl);
=20
-	/* Serial over Lan (SoL) hack:
-	   Intel 8257x Gigabit ethernet chips have a
-	   16550 emulation, to be used for Serial Over Lan.
-	   Those chips take a longer time than a normal
-	   serial device to signalize that a transmission
-	   data was queued. Due to that, the above test generally
-	   fails. One solution would be to delay the reading of
-	   iir. However, this is not reliable, since the timeout
-	   is variable. So, let's just don't test if we receive
-	   TX irq. This way, we'll never enable UART_BUG_TXEN.
+	/*
+	 * Serial over Lan (SoL) hack:
+	 * Intel 8257x Gigabit ethernet chips have a 16550 emulation, to be u=
sed
+	 * for Serial Over Lan.  Those chips take a longer time than a normal
+	 * serial device to signalize that a transmission data was queued. Du=
e
+	 * to that, the above test generally fails. One solution would be to
+	 * delay the reading of iir. However, this is not reliable, since the
+	 * timeout is variable. So, let's just don't test if we receive TX ir=
q.
+	 * This way, we'll never enable UART_BUG_TXEN.
 	 */
 	if (up->port.flags & UPF_NO_TXEN_TEST)
 		goto dont_test_tx_en;
=20
 	/*
-	 * Do a quick test to see if we receive an
-	 * interrupt when we enable the TX irq.
+	 * Do a quick test to see if we receive an interrupt when we enable t=
he
+	 * TX irq.
 	 */
 	serial_port_out(port, UART_IER, UART_IER_THRI);
 	lsr =3D serial_port_in(port, UART_LSR);
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 6d7a801..1f34867 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -441,16 +441,20 @@ static int simple_config(struct pcmcia_device *li=
nk)
 	struct serial_info *info =3D link->priv;
 	int i =3D -ENODEV, try;
=20
-	/* First pass: look for a config entry that looks normal.
-	 * Two tries: without IO aliases, then with aliases */
+	/*
+	 * First pass: look for a config entry that looks normal.
+	 * Two tries: without IO aliases, then with aliases
+	 */
 	link->config_flags |=3D CONF_AUTO_SET_VPP;
 	for (try =3D 0; try < 4; try++)
 		if (!pcmcia_loop_config(link, simple_config_check, &try))
 			goto found_port;
=20
-	/* Second pass: try to find an entry that isn't picky about
-	   its base address, then try to grab any standard serial port
-	   address, and finally try to get any free port. */
+	/*
+	 * Second pass: try to find an entry that isn't picky about
+	 * its base address, then try to grab any standard serial port
+	 * address, and finally try to get any free port.
+	 */
 	if (!pcmcia_loop_config(link, simple_config_check_notpicky, NULL))
 		goto found_port;
=20
@@ -480,8 +484,10 @@ static int multi_config_check(struct pcmcia_device=
 *p_dev, void *priv_data)
 	if (p_dev->resource[1]->end)
 		return -EINVAL;
=20
-	/* The quad port cards have bad CIS's, so just look for a
-	   window larger than 8 ports and assume it will be right */
+	/*
+	 * The quad port cards have bad CIS's, so just look for a
+	 * window larger than 8 ports and assume it will be right
+	 */
 	if (p_dev->resource[0]->end <=3D 8)
 		return -EINVAL;
=20
@@ -623,8 +629,10 @@ static int serial_config(struct pcmcia_device *lin=
k)
 			break;
 		}
=20
-	/* Another check for dual-serial cards: look for either serial or
-	   multifunction cards that ask for appropriate IO port ranges */
+	/*
+	 * Another check for dual-serial cards: look for either serial or
+	 * multifunction cards that ask for appropriate IO port ranges
+	 */
 	if ((info->multi =3D=3D 0) &&
 	    (link->has_func_id) &&
 	    (link->socket->pcmcia_pfc =3D=3D 0) &&
--=20
1.9.1



From - Thu Nov 08 21:38:22 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 00/15] tty: serial: 8250: Fix checkpatch warnings
Date: Wed, 13 Jan 2016 17:39:16 +0100
Lines: 93
Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Anton Wuerfel <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Hello Andy,

thanks for your patch review. We tried to apply your suggested changes.

Regards,
Anton Wuerfel
Phillip Raffeck

This patch set fixes several checkpatch warnings in tty/serial/8250.

Patch 1/15:  Adds missing spaces (mainly to function/macro headers)
Patch 2/15:  Replace spaces with tabs wherever possible
Patch 3/15:  Slight patch which moves an opening curly brace
Patch 4/15:  Fixes multiline comment style
Patch 5/15:  Removes else blocks after return statements
Patch 6/15:  Slight patch which moves EXPORT_SYMBOL macro to correct
position
Patch 7/15:  Slight patch which removes an unneccessary line continuation
Patch 8/15:  Slight patch which adds parentheses to a macro definition
Patch 9/15:  Merges user-visible multiline strings to a single line
Patch 10/15: Replace printk by dev_* or pr_* where appropriate
Patch 11/15: Remove orphaned debug macro
Patch 12/15: Fix warnings in dev_dbg by adding two casts
Patch 13/15: Fixes code indentation
Patch 14/15: Add a generic port macro
Patch 15/15: Refactor a switch/case statement

Remaining checkpatch warnings after applying this patch series:

-line over 80 characters
	This error mostly occurs in serial_cs.c, which contains long-lined
	macro calls. However, splitting these calls into multiple lines would
	not increase readability.

-externs should be avoided in .c files
	This occurs in 8250_hp300.c. There is no corresponding header file
	the extern statement could be moved to. It could be moved to 8250.h
	but this would affect other .c files.

-Use #include <linux/*.h> instead of <asm/*.h>
	This warning has been left open for more experienced kernel hackers.
	This patch series is about style issues. We do not intend to alter
	the code behavior.
-struct uart_ops should normally be const
	This warning only occurs in 8250_core.c. The corresponding struct
	cannot be declared as const because it is altered in
	serial8250_isa_init_ports(). Maybe a checkpatch exception should
	be added for this particular warning.

-quoted string split across lines
	These strings were ignored because they otherwise would exceed
	80 characters in a single line. These particular strings use
	format specifiers, which break the ability to grep for them anyway.

Anton Wuerfel (15):
Phillip Raffeck (15):
  tty: serial: 8250: Fix whitespace errors
  tty: serial: 8250: Replace spaces with tabs
  tty: serial: 8250: Fix braces after struct
  tty: serial: 8250: Fix multiline comment style
  tty: serial: 8250: Remove else after return
  tty: serial: 8250: Move EXPORT_SYMBOL to function
  tty: serial: 8250: Fix line continuation warning
  tty: serial: 8250: Add parentheses to macro
  tty: serial: 8250: Fix multi-line strings
  tty: serial: 8250: Correct conversion specifiers
  tty: serial: 8250: Fix indentation warnings
  tty: serial: 8250: Add generic port init macro
  tty: serial: 8250: Merge duplicate conditions
  tty: serial: 8250: Suitably replace printk
  tty: serial: 8250: Remove SERIAL_DEBUG_PNP macro

 drivers/tty/serial/8250/8250.h               | 12 ++++
 drivers/tty/serial/8250/8250_accent.c        | 13 +---
 drivers/tty/serial/8250/8250_acorn.c         |  2 +-
 drivers/tty/serial/8250/8250_boca.c          | 41 ++++++-------
 drivers/tty/serial/8250/8250_core.c          | 15 ++---
 drivers/tty/serial/8250/8250_exar_st16c554.c | 17 ++----
 drivers/tty/serial/8250/8250_fourport.c      | 28 ++++-----
 drivers/tty/serial/8250/8250_gsc.c           |  7 ++-
 drivers/tty/serial/8250/8250_hp300.c         | 27 +++++----
 drivers/tty/serial/8250/8250_hub6.c          |  2 +-
 drivers/tty/serial/8250/8250_ingenic.c       | 12 ++--
 drivers/tty/serial/8250/8250_pci.c           | 55 +++++++++--------
 drivers/tty/serial/8250/8250_pnp.c           | 20 ++++---
 drivers/tty/serial/8250/8250_port.c          | 46 +++++++-------
 drivers/tty/serial/8250/serial_cs.c          | 89 +++++++++++++++-------------
 15 files changed, 195 insertions(+), 191 deletions(-)

-- 
1.9.1



From - Thu Nov 08 21:38:22 2018
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Path: news.gmane.org!not-for-mail
From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v5 01/15] tty: serial: 8250: Fix whitespace errors
Date: Wed, 13 Jan 2016 17:39:17 +0100
Lines: 304
Approved: news@gmane.org
Message-ID: <1452703171-5632-2-git-send-email-anton.wuerfel@fau.de>
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Anton Wuerfel <anton.wuerf
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This patch fixes whitespace errors reported by checkpatch to increase
readability. Main focus is on missing spaces after commas in
function headers and macros (like foo,bar edited to foo, bar).

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_acorn.c |  2 +-
 drivers/tty/serial/8250/8250_hub6.c  |  2 +-
 drivers/tty/serial/8250/8250_pci.c   | 10 +++---
 drivers/tty/serial/8250/8250_port.c  |  2 ++
 drivers/tty/serial/8250/serial_cs.c  | 60 ++++++++++++++++++----------=
--------
 5 files changed, 40 insertions(+), 36 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_acorn.c b/drivers/tty/serial/=
8250/8250_acorn.c
index 549aa07..402dfdd 100644
--- a/drivers/tty/serial/8250/8250_acorn.c
+++ b/drivers/tty/serial/8250/8250_acorn.c
@@ -70,7 +70,7 @@ serial_card_probe(struct expansion_card *ec, const st=
ruct ecard_id *id)
 	uart.port.regshift	=3D 2;
 	uart.port.dev	=3D &ec->dev;
=20
-	for (i =3D 0; i < info->num_ports; i ++) {
+	for (i =3D 0; i < info->num_ports; i++) {
 		uart.port.membase =3D info->vaddr + type->offset[i];
 		uart.port.mapbase =3D bus_addr + type->offset[i];
=20
diff --git a/drivers/tty/serial/8250/8250_hub6.c b/drivers/tty/serial/8=
250/8250_hub6.c
index a5c778e..27124e2 100644
--- a/drivers/tty/serial/8250/8250_hub6.c
+++ b/drivers/tty/serial/8250/8250_hub6.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define HUB6(card,port)							\
+#define HUB6(card, port)						\
 	{								\
 		.iobase		=3D 0x302,				\
 		.irq		=3D 3,					\
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 4097f3f..ccf43cb 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -850,7 +850,7 @@ static int pci_netmos_init(struct pci_dev *dev)
 			break;
=20
 		default:
-			if (num_serial =3D=3D 0 ) {
+			if (num_serial =3D=3D 0) {
 				moan_device("unknown NetMos/Mostech device", dev);
 			}
 	}
@@ -1198,8 +1198,9 @@ static int pci_quatech_has_qmcr(struct uart_8250_=
port *port)
=20
 static int pci_quatech_test(struct uart_8250_port *port)
 {
-	u8 reg;
-	u8 qopr =3D pci_quatech_rqopr(port);
+	u8 reg, qopr;
+
+	qopr =3D pci_quatech_rqopr(port);
 	pci_quatech_wqopr(port, qopr & QPCR_TEST_FOR1);
 	reg =3D pci_quatech_rqopr(port) & 0xC0;
 	if (reg !=3D QPCR_TEST_GET1)
@@ -1286,6 +1287,7 @@ static int pci_quatech_init(struct pci_dev *dev)
 		unsigned long base =3D pci_resource_start(dev, 0);
 		if (base) {
 			u32 tmp;
+
 			outl(inl(base + 0x38) | 0x00002000, base + 0x38);
 			tmp =3D inl(base + 0x3c);
 			outl(tmp | 0x01000000, base + 0x3c);
@@ -4502,7 +4504,7 @@ static struct pci_device_id serial_pci_tbl[] =3D =
{
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b0_bt_2_921600 },
 	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI958,
-		PCI_ANY_ID , PCI_ANY_ID, 0, 0,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b2_8_1152000 },
=20
 	/*
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 52d82d2..7f3bd7b 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1327,6 +1327,7 @@ static void serial8250_start_tx(struct uart_port =
*port)
=20
 		if (up->bugs & UART_BUG_TXEN) {
 			unsigned char lsr;
+
 			lsr =3D serial_in(up, UART_LSR);
 			up->lsr_saved_flags |=3D lsr & LSR_SAVE_FLAGS;
 			if (lsr & UART_LSR_THRE)
@@ -1734,6 +1735,7 @@ static void wait_for_xmitr(struct uart_8250_port =
*up, int bits)
 	/* Wait up to 1s for flow control if necessary */
 	if (up->port.flags & UPF_CONS_FLOW) {
 		unsigned int tmout;
+
 		for (tmout =3D 1000000; tmout; tmout--) {
 			unsigned int msr =3D serial_in(up, UART_MSR);
 			up->msr_saved_flags |=3D msr & MSR_SAVE_FLAGS;
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 4d180c9..6d7a801 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -28,7 +28,7 @@
     and other provisions required by the GPL.  If you do not delete
     the provisions above, a recipient may use your version of this
     file under either the MPL or the GPL.
-   =20
+
 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
=20
 #include <linux/module.h>
@@ -257,7 +257,7 @@ static const struct serial_quirk quirks[] =3D {
 };
=20
=20
-static int serial_config(struct pcmcia_device * link);
+static int serial_config(struct pcmcia_device *link);
=20
=20
 static void serial_remove(struct pcmcia_device *link)
@@ -309,7 +309,7 @@ static int serial_probe(struct pcmcia_device *link)
 	dev_dbg(&link->dev, "serial_attach()\n");
=20
 	/* Create new serial device */
-	info =3D kzalloc(sizeof (*info), GFP_KERNEL);
+	info =3D kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 	info->p_dev =3D link;
@@ -339,7 +339,7 @@ static void serial_detach(struct pcmcia_device *lin=
k)
=20
 /*=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
=20
-static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo * info,
+static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo *info,
 			unsigned int iobase, int irq)
 {
 	struct uart_8250_port uart;
@@ -600,7 +600,7 @@ static int serial_check_for_multi(struct pcmcia_dev=
ice *p_dev,  void *priv_data)
 }
=20
=20
-static int serial_config(struct pcmcia_device * link)
+static int serial_config(struct pcmcia_device *link)
 {
 	struct serial_info *info =3D link->priv;
 	int i;
@@ -701,7 +701,7 @@ static const struct pcmcia_device_id serial_ids[] =3D=
 {
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "LINKSYS", "PCMLM336", 0xf7cb0b07, 0x7=
a821b58),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf5=
10db04, 0x52d21e1e),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MICRO RESEARCH", "COMBO-L/M-336", 0xb=
2ced065, 0x3ced0555),
-	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001" ,0x18df0ba0 ,0x831=
b1064),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001", 0x18df0ba0, 0x831=
b1064),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Diamonds=
 Modem+Ethernet", 0xc2f80cd, 0x656947b9),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Hearts M=
odem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "PCMCIAs", "ComboCard", 0xdcfe12d3, 0x=
cd8906cc),
@@ -797,30 +797,30 @@ static const struct pcmcia_device_id serial_ids[]=
 =3D {
 	PCMCIA_DEVICE_CIS_PROD_ID123("ADVANTECH", "COMpad-32/85", "1.0", 0x96=
913a85, 0x8fbe92ae, 0x0877b627, "cis/COMpad2.cis"),
 	PCMCIA_DEVICE_CIS_PROD_ID2("RS-COM 2P", 0xad20b156, "cis/RS-COM-2P.ci=
s"),
 	PCMCIA_DEVICE_CIS_MANF_CARD(0x0013, 0x0000, "cis/GLOBETROTTER.cis"),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100  1.00.",0x19ca78af,0xf964f42b),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100",0x19ca78af,0x71d98e83),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232  1.00.",0x19ca78af,0x69fb7490),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232",0x19ca78af,0xb6bc0235),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232",0x63f2e0bd,0xb9e175d3),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232-5",0x63f2e0bd,0xfce33442),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232",0x3beb8cf2,0x171e=
7190),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232-5",0x3beb8cf2,0x20=
da4262),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF428",0x3beb8cf2,0xea5d=
d57d),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF500",0x3beb8cf2,0xd772=
55fa),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: IC232",0x3beb8cf2,0x6a70=
9903),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: SL232",0x3beb8cf2,0x1843=
0676),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: XL232",0x3beb8cf2,0x6f93=
3767),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial+Parallel Port: SP230",0x=
3beb8cf2,0xdb9e58bc),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(2,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(3,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100  1.00.", 0x19ca78af, 0xf964f42b),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100", 0x19ca78af, 0x71d98e83),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232  1.00.", 0x19ca78af, 0x69fb7490),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232", 0x19ca78af, 0xb6bc0235),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232", 0x63f2e0bd, 0xb9e175d3),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232-5", 0x63f2e0bd, 0xfce33442),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232", 0x3beb8cf2, 0x1=
71e7190),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232-5", 0x3beb8cf2, 0=
x20da4262),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF428", 0x3beb8cf2, 0xe=
a5dd57d),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF500", 0x3beb8cf2, 0xd=
77255fa),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: IC232", 0x3beb8cf2, 0x6=
a709903),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: SL232", 0x3beb8cf2, 0x1=
8430676),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: XL232", 0x3beb8cf2, 0x6=
f933767),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial+Parallel Port: SP230",=
 0x3beb8cf2, 0xdb9e58bc),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(2, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(3, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
 	PCMCIA_DEVICE_MANF_CARD(0x0279, 0x950b),
 	/* too generic */
 	/* PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0160, 0x0002), */
--=20
1.9.1

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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v5 03/15] tty: serial: 8250: Fix braces after struct
Date: Wed, 13 Jan 2016 17:39:19 +0100
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Anton Wuerfel <anton.wuerf
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes a checkpatch warning by moving an opening curly brace
to its correct position.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 2891958..5e1b464 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -24,8 +24,7 @@
 #endif
=20
 #ifdef CONFIG_HPAPCI
-struct hp300_port
-{
+struct hp300_port {
 	struct hp300_port *next;	/* next port */
 	int line;			/* line (tty) number */
 };
--=20
1.9.1



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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v5 04/15] tty: serial: 8250: Fix multiline comment style
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	Peter Hurley <peter@hurleysoftware.com>,
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	Qipeng Zha <qipeng.zha@intel.com>,
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	Wang Long <long.wanglong@huawei.com>,
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	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
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To: Anton Wuerfel <anton.wuerfel@fau.de>,
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On Wed, 2016-01-13 at 17:39 +0100, Anton Wuerfel wrote:
> Checkpatch outputs some warnings about incorrect comment style,
> which is fixed by this patch.
>=20


> --- a/drivers/tty/serial/8250/8250_ingenic.c
> +++ b/drivers/tty/serial/8250/8250_ingenic.c
> @@ -152,14 +152,18 @@ static void ingenic_uart_serial_out(struct
> uart_port *p, int offset, int value)
> =C2=A0		break;
> =C2=A0
> =C2=A0	case UART_IER:
> -		/* Enable receive timeout interrupt with the
> -		=C2=A0* receive line status interrupt */
> +		/*
> +		=C2=A0* Enable receive timeout interrupt with the
> +		=C2=A0* receive line status interrupt

I'm pretty sure that at least one word could fit previous line.

Can you re-check your patches with sane editor setting for line
breaking (like 76 characters)?

> +		=C2=A0*/
> =C2=A0		value |=3D (value & 0x4) << 2;
> =C2=A0		break;
> =C2=A0
> =C2=A0	case UART_MCR:
> -		/* If we have enabled modem status IRQs we should
> enable modem
> -		=C2=A0* mode. */
> +		/*
> +		=C2=A0* If we have enabled modem status IRQs we should
> enable modem
> +		=C2=A0* mode.

To check.

> +		=C2=A0*/
>=20

> @@ -367,8 +367,10 @@ static const struct pnp_device_id
> pnp_dev_table[] =3D {
> =C2=A0	{	"PNPCXXX",		UNKNOWN_DEV	},
> =C2=A0	/* More unknown PnP modems */
> =C2=A0	{	"PNPDXXX",		UNKNOWN_DEV	},
> -	/* Winbond CIR port, should not be probed. We should keep
> track
> -	=C2=A0=C2=A0=C2=A0of it to prevent the legacy serial driver from pr=
obing it
> */
> +	/*
> +	=C2=A0* Winbond CIR port, should not be probed. We should keep
> track
> +	=C2=A0* of it to prevent the legacy serial driver from probing it

I would suggest to add dot at the end of sentences. Here and in the
rest of the places.


> --- a/drivers/tty/serial/8250/8250_port.c
> +++ b/drivers/tty/serial/8250/8250_port.c
> @@ -250,9 +250,11 @@ static const struct serial8250_config
> uart_config[] =3D {
> =C2=A0		.fcr		=3D UART_FCR_ENABLE_FIFO |
> UART_FCR_R_TRIG_10,
> =C2=A0		.flags		=3D UART_CAP_FIFO |
> UART_CAP_AFE,
> =C2=A0	},
> -/* tx_loadsz is set to 63-bytes instead of 64-bytes to implement
> -workaround of errata A-008006 which states that tx_loadsz should=C2=A0=
=C2=A0be
> -configured less than Maximum supported fifo bytes */
> +	/*
> +	=C2=A0* tx_loadsz is set to 63-bytes instead of 64-bytes to
> implement
> +	=C2=A0* workaround of errata A-008006 which states that tx_loadsz
> should be
> +	=C2=A0* configured less than Maximum supported fifo bytes

Ditto.

> --- a/drivers/tty/serial/8250/serial_cs.c
> +++ b/drivers/tty/serial/8250/serial_cs.c
> @@ -441,16 +441,20 @@ static int simple_config(struct pcmcia_device
> *link)
> =C2=A0	struct serial_info *info =3D link->priv;
> =C2=A0	int i =3D -ENODEV, try;
> =C2=A0
> -	/* First pass: look for a config entry that looks normal.
> -	=C2=A0* Two tries: without IO aliases, then with aliases */
> +	/*
> +	=C2=A0* First pass: look for a config entry that looks normal.
> +	=C2=A0* Two tries: without IO aliases, then with aliases

Ditto.

> @@ -480,8 +484,10 @@ static int multi_config_check(struct
> pcmcia_device *p_dev, void *priv_data)
> =C2=A0	if (p_dev->resource[1]->end)
> =C2=A0		return -EINVAL;
> =C2=A0
> -	/* The quad port cards have bad CIS's, so just look for a
> -	=C2=A0=C2=A0=C2=A0window larger than 8 ports and assume it will be =
right */
> +	/*
> +	=C2=A0* The quad port cards have bad CIS's, so just look for a
> +	=C2=A0* window larger than 8 ports and assume it will be right

Ditto.

> -	/* Another check for dual-serial cards: look for either
> serial or
> -	=C2=A0=C2=A0=C2=A0multifunction cards that ask for appropriate IO p=
ort
> ranges */
> +	/*
> +	=C2=A0* Another check for dual-serial cards: look for either
> serial or
> +	=C2=A0* multifunction cards that ask for appropriate IO port
> ranges

Ditto.

--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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From - Thu Nov 08 21:38:22 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH v5 05/15] tty: serial: 8250: Remove else after return
Date: Wed, 13 Jan 2016 19:05:22 +0200
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
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	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
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To: Anton Wuerfel <anton.wuerfel@fau.de>,
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On Wed, 2016-01-13 at 17:39 +0100, Anton Wuerfel wrote:
> This patch fixes checkpatch warnings about unnecessary else blocks
> after
> return statements.
>=20

> @@ -816,12 +816,11 @@ static int pci_netmos_9900_numports(struct
> pci_dev *dev)
> =C2=A0		=C2=A0* advertising the same function 3 as the 4s+2s1p
> config.
> =C2=A0		=C2=A0*/
> =C2=A0		sub_serports =3D dev->subsystem_device & 0xf;
> -		if (sub_serports > 0) {
> +		if (sub_serports > 0)
> =C2=A0			return sub_serports;
> -		} else {
> -			dev_err(&dev->dev, "NetMos/Mostech serial
> driver ignoring port on ambiguous config.\n");
> -			return 0;
> -		}
> +
> +		dev_err(&dev->dev, "NetMos/Mostech serial driver
> ignoring port on ambiguous config.\n");

Here you may put the literal on the next line and indent it properly to
&. It might not fit the 80 character limit, but I think still worth to
do.

--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy



From - Thu Nov 08 21:38:22 2018
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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v5 09/15] tty: serial: 8250: Fix multi-line strings
Date: Wed, 13 Jan 2016 19:08:58 +0200
Organization: Intel Finland Oy
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Peter Hung <hpeter@gmail.com>,
	Soeren Grunewald <soeren.grunewald@desy.de>,
	Adam Lee <adam.lee@canonical.com>,
	"Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>
To: Anton Wuerfel <anton.wuerfel@fau.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On Wed, 2016-01-13 at 17:39 +0100, Anton Wuerfel wrote:
> Merged user-visible multi-line strings into a single line according
> to the
> Linux Kernel Coding Style, which allows user-visible strings to
> exceed the
> maximum line length of 80 characters. The main reason for this is to
> facilitate grepping for these strings.
> However, some strings were ignored in this patch, because the use of
> format specifiers breaks the ability to grep anyway.
>=20

> --- a/drivers/tty/serial/8250/8250_core.c
> +++ b/drivers/tty/serial/8250/8250_core.c
> @@ -1173,8 +1173,7 @@ MODULE_LICENSE("GPL");
> =C2=A0MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
> =C2=A0
> =C2=A0module_param(share_irqs, uint, 0644);
> -MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50
> devices"
> -	" (unsafe)");
> +MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50
> devices (unsafe)");

This one looks nice in one line.

> --- a/drivers/tty/serial/8250/serial_cs.c
> +++ b/drivers/tty/serial/8250/serial_cs.c
> @@ -533,8 +533,7 @@ static int multi_config(struct pcmcia_device
> *link)
> =C2=A0		info->multi =3D 2;
> =C2=A0		if (pcmcia_loop_config(link,
> multi_config_check_notpicky,
> =C2=A0				=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0&base2)) {
> -			dev_warn(&link->dev, "no usable port range "
> -			=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0"found, giving up\n");
> +			dev_warn(&link->dev, "no usable port range
> found, giving up\n");

But here I would comment as in patch 5, i.e. move literal to next line
it it doesn't fit on the dev_warn() line.

--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH v5 14/15] tty: serial: 8250: Add generic port init macro
Date: Wed, 13 Jan 2016 19:22:14 +0200
Organization: Intel Finland Oy
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
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	Adam Lee <adam.lee@canonical.com>,
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	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>
To: Anton Wuerfel <anton.wuerfel@fau.de>,
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On Wed, 2016-01-13 at 17:39 +0100, Anton Wuerfel wrote:
> This patch removes redundant 8250 port initialization macros and
> replaces them by a single generic base-macro, which is specialized
> as needed.

Perhaps you forgot.
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> Cc: linux-kernel@i4.cs.fau.de

--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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Subject: Re: [PATCH v5 14/15] tty: serial: 8250: Add generic port init macro
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> On Wed, 2016-01-13 at 17:39 +0100, Anton Wuerfel wrote:
>> This patch removes redundant 8250 port initialization macros and
>> replaces them by a single generic base-macro, which is specialized
>> as needed.
>
> Perhaps you forgot.
> Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Sorry, we did not even know that this tag existed. We will add this in our
next patch series.

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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH v5 15/15] tty: serial: 8250: Merge duplicate conditions
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Cc: Jiri Slaby <jslaby@suse.com>,
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	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
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To: Anton Wuerfel <anton.wuerfel@fau.de>,
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On Wed, 2016-01-13 at 17:39 +0100, Anton Wuerfel wrote:
> This patch refactors a switch case statement by merging an if
> condition
> in the default case into an identical condition right after the
> switch
> statement.
> This comes with a slight change in behaviour: If
> pci_netmos_9900_numports
> returns 0, an additional warning is printed.
>=20

+ Suggested-by:

And I would recommend to put this patch before #13 in the series.

> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> Cc: linux-kernel@i4.cs.fau.de
> ---
> =C2=A0drivers/tty/serial/8250/8250_pci.c | 4 +++-
> =C2=A01 file changed, 3 insertions(+), 1 deletion(-)
>=20
> diff --git a/drivers/tty/serial/8250/8250_pci.c
> b/drivers/tty/serial/8250/8250_pci.c
> index 1dd607f..50ab301 100644
> --- a/drivers/tty/serial/8250/8250_pci.c
> +++ b/drivers/tty/serial/8250/8250_pci.c
> @@ -854,8 +854,10 @@ static int pci_netmos_init(struct pci_dev *dev)
> =C2=A0		}
> =C2=A0	}
> =C2=A0
> -	if (num_serial =3D=3D 0)
> +	if (num_serial =3D=3D 0) {
> +		moan_device("unknown NetMos/Mostech device", dev);
> =C2=A0		return -ENODEV;
> +	}

Yep!
However, you forgot to fix switch-case as well.

> =C2=A0
> =C2=A0	return num_serial;
> =C2=A0}

--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy



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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH v5 14/15] tty: serial: 8250: Add generic port init macro
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Peter Hurley <peter@hurleysoftware.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Qipeng Zha <qipeng.zha@intel.com>,
	Desmond Liu <desmondl@broadcom.com>,
	Wang Long <long.wanglong@huawei.com>,
	Matt Redfearn <matt.redfearn@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
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	Mans Rullgard <mans@mansr.com>, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-kernel@i4.cs.fau.de,
	Phillip Raffeck <phillip.raffeck@fau.de>
To: Anton Wuerfel <anton.wuerfel@fau.de>
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On Wed, 2016-01-13 at 18:25 +0100, Anton Wuerfel wrote:
> > On Wed, 2016-01-13 at 17:39 +0100, Anton Wuerfel wrote:
> > > This patch removes redundant 8250 port initialization macros and
> > > replaces them by a single generic base-macro, which is
> > > specialized
> > > as needed.
> >=20
> > Perhaps you forgot.
> > Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
>=20
> Sorry, we did not even know that this tag existed. We will add this
> in our
> next patch series.
>=20

Also, please thin out the Cc list, I would recommend remove just
ordinary commiters (with maybe few exceptions) and leave maintainers.=C2=
=A0
Moreover some addresses are bounced.

--=C2=A0
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy



From - Thu Nov 08 21:38:22 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: [PATCH v6 00/15] tty: serial: 8250: Fix checkpatch warnings
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Hello Andy,

> Also, please thin out the Cc list, I would recommend remove just
> ordinary commiters (with maybe few exceptions) and leave maintainers. 
> Moreover some addresses are bounced.
I thinned out the Cc list and left over only maintainers and major
contributors to the code.

> Yep!
> However, you forgot to fix switch-case as well.
Phillip and me are kind of git magicians. We can make code disappear during
rebase :-) The piece of code was part of a commit, but it never made it into
the final patch file.
 
I hope, there are no major issues with our patch set.

Regards,
Anton Wuerfel
Phillip Raffeck

This patch set fixes several checkpatch warnings in tty/serial/8250.

Patch 1/15:  Adds missing spaces (mainly to function/macro headers)
Patch 2/15:  Replace spaces with tabs wherever possible
Patch 3/15:  Slight patch which moves an opening curly brace
Patch 4/15:  Fixes multiline comment style
Patch 5/15:  Removes else blocks after return statements
Patch 6/15:  Slight patch which moves EXPORT_SYMBOL macro to correct
position
Patch 7/15:  Slight patch which removes an unneccessary line continuation
Patch 8/15:  Slight patch which adds parentheses to a macro definition
Patch 9/15:  Merges user-visible multiline strings to a single line
Patch 10/15: Replace printk by dev_* or pr_* where appropriate
Patch 11/15: Remove orphaned debug macro
Patch 12/15: Fix warnings in dev_dbg by adding two casts
Patch 13/15: Fixes code indentation
Patch 14/15: Add a generic port macro
Patch 15/15: Refactor a switch/case statement

Remaining checkpatch warnings after applying this patch series:

-line over 80 characters
	This error mostly occurs in serial_cs.c, which contains long-lined
	macro calls. However, splitting these calls into multiple lines would
	not increase readability.

-externs should be avoided in .c files
	This occurs in 8250_hp300.c. There is no corresponding header file
	the extern statement could be moved to. It could be moved to 8250.h
	but this would affect other .c files.

-Use #include <linux/*.h> instead of <asm/*.h>
	This warning has been left open for more experienced kernel hackers.
	This patch series is about style issues. We do not intend to alter
	the code behavior.
-struct uart_ops should normally be const
	This warning only occurs in 8250_core.c. The corresponding struct
	cannot be declared as const because it is altered in
	serial8250_isa_init_ports(). Maybe a checkpatch exception should
	be added for this particular warning.

-quoted string split across lines
	These strings were ignored because they otherwise would exceed
	80 characters in a single line. These particular strings use
	format specifiers, which break the ability to grep for them anyway.

Anton Wuerfel (15):
Phillip Raffeck (15):
  tty: serial: 8250: Fix whitespace errors
  tty: serial: 8250: Replace spaces with tabs
  tty: serial: 8250: Fix braces after struct
  tty: serial: 8250: Fix multiline comment style
  tty: serial: 8250: Remove else after return
  tty: serial: 8250: Move EXPORT_SYMBOL to function
  tty: serial: 8250: Fix line continuation warning
  tty: serial: 8250: Add parentheses to macro
  tty: serial: 8250: Fix multi-line strings
  tty: serial: 8250: Correct conversion specifiers
  tty: serial: 8250: Merge duplicate conditions
  tty: serial: 8250: Fix indentation warnings
  tty: serial: 8250: Add generic port init macro
  tty: serial: 8250: Suitably replace printk
  tty: serial: 8250: Remove SERIAL_DEBUG_PNP macro

 drivers/tty/serial/8250/8250.h               | 12 ++++
 drivers/tty/serial/8250/8250_accent.c        | 13 +---
 drivers/tty/serial/8250/8250_acorn.c         |  2 +-
 drivers/tty/serial/8250/8250_boca.c          | 41 ++++++-------
 drivers/tty/serial/8250/8250_core.c          | 15 ++---
 drivers/tty/serial/8250/8250_exar_st16c554.c | 17 ++----
 drivers/tty/serial/8250/8250_fourport.c      | 28 ++++-----
 drivers/tty/serial/8250/8250_gsc.c           |  7 ++-
 drivers/tty/serial/8250/8250_hp300.c         | 27 +++++----
 drivers/tty/serial/8250/8250_hub6.c          |  2 +-
 drivers/tty/serial/8250/8250_ingenic.c       | 12 ++--
 drivers/tty/serial/8250/8250_pci.c           | 60 ++++++++++---------
 drivers/tty/serial/8250/8250_pnp.c           | 28 +++++----
 drivers/tty/serial/8250/8250_port.c          | 47 ++++++++-------
 drivers/tty/serial/8250/serial_cs.c          | 90 +++++++++++++++-------------
 15 files changed, 203 insertions(+), 198 deletions(-)

-- 
1.9.1

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From - Thu Nov 08 21:38:22 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v6 14/15] tty: serial: 8250: Fix indentation warnings
Date: Wed, 13 Jan 2016 22:29:20 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Checkpatch complains about incorrect indentation of switch/case stateme=
nts.
This patch fixes the corresponding warnings. Additionally some indentat=
ion
is changed to match the correct format specified in the Linux Kernel
Coding Style.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c  | 16 ++++++++--------
 drivers/tty/serial/8250/8250_pnp.c  |  4 ++--
 drivers/tty/serial/8250/8250_port.c |  6 +++---
 3 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index b22e5a5..40aa5e7 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -842,15 +842,15 @@ static int pci_netmos_init(struct pci_dev *dev)
 		return 0;
=20
 	switch (dev->device) { /* FALLTHROUGH on all */
-		case PCI_DEVICE_ID_NETMOS_9904:
-		case PCI_DEVICE_ID_NETMOS_9912:
-		case PCI_DEVICE_ID_NETMOS_9922:
-		case PCI_DEVICE_ID_NETMOS_9900:
-			num_serial =3D pci_netmos_9900_numports(dev);
-			break;
+	case PCI_DEVICE_ID_NETMOS_9904:
+	case PCI_DEVICE_ID_NETMOS_9912:
+	case PCI_DEVICE_ID_NETMOS_9922:
+	case PCI_DEVICE_ID_NETMOS_9900:
+		num_serial =3D pci_netmos_9900_numports(dev);
+		break;
=20
-		default:
-			break;
+	default:
+		break;
 	}
=20
 	if (num_serial =3D=3D 0) {
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 92f4412..79bcdf2 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -427,8 +427,8 @@ static int check_resources(struct pnp_dev *dev)
 static int serial_pnp_guess_board(struct pnp_dev *dev)
 {
 	if (!(check_name(pnp_dev_name(dev)) ||
-		(dev->card && check_name(dev->card->name))))
-			return -ENODEV;
+	    (dev->card && check_name(dev->card->name))))
+		return -ENODEV;
=20
 	if (check_resources(dev))
 		return 0;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 25fd6b4..9fe814f 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2236,9 +2236,9 @@ static void serial8250_set_divisor(struct uart_po=
rt *port, unsigned int baud,
 		serial_port_out(port, 0x2, quot_frac);
 }
=20
-static unsigned int
-serial8250_get_baud_rate(struct uart_port *port, struct ktermios *term=
ios,
-			 struct ktermios *old)
+static unsigned int serial8250_get_baud_rate(struct uart_port *port,
+					     struct ktermios *termios,
+					     struct ktermios *old)
 {
 	unsigned int tolerance =3D port->uartclk / 100;
=20
--=20
1.9.1



From - Thu Nov 08 21:38:22 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v6 15/15] tty: serial: 8250: Add generic port init macro
Date: Wed, 13 Jan 2016 22:29:21 +0100
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Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Xref: news.gmane.org gmane.linux.kernel:2126243 gmane.linux.serial:21546 gmane.linux.ports.parisc:26382
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2126243>

This patch removes redundant 8250 port initialization macros and
replaces them by a single generic base-macro, which is specialized
as needed.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250.h               | 12 ++++++++
 drivers/tty/serial/8250/8250_accent.c        | 13 ++-------
 drivers/tty/serial/8250/8250_boca.c          | 41 ++++++++++++--------=
--------
 drivers/tty/serial/8250/8250_exar_st16c554.c | 17 ++++--------
 drivers/tty/serial/8250/8250_fourport.c      | 28 ++++++++-----------
 5 files changed, 49 insertions(+), 62 deletions(-)

diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8=
250.h
index d54dcd8..4672ab4 100644
--- a/drivers/tty/serial/8250/8250.h
+++ b/drivers/tty/serial/8250/8250.h
@@ -92,6 +92,18 @@ struct serial8250_config {
 #define SERIAL8250_SHARE_IRQS 0
 #endif
=20
+#define SERIAL8250_PORT_FLAGS(_base, _irq, _flags)		\
+	{							\
+		.iobase		=3D _base,			\
+		.irq		=3D _irq,				\
+		.uartclk	=3D 1843200,			\
+		.iotype		=3D UPIO_PORT,			\
+		.flags		=3D UPF_BOOT_AUTOCONF | (_flags),	\
+	}
+
+#define SERIAL8250_PORT(_base, _irq) SERIAL8250_PORT_FLAGS(_base, _irq=
, 0)
+
+
 static inline int serial_in(struct uart_8250_port *up, int offset)
 {
 	return up->port.serial_in(&up->port, offset);
diff --git a/drivers/tty/serial/8250/8250_accent.c b/drivers/tty/serial=
/8250/8250_accent.c
index 34b51c6..522aeae 100644
--- a/drivers/tty/serial/8250/8250_accent.c
+++ b/drivers/tty/serial/8250/8250_accent.c
@@ -10,18 +10,11 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
-	{						\
-		.iobase		=3D _base,		\
-		.irq		=3D _irq,			\
-		.uartclk	=3D 1843200,		\
-		.iotype		=3D UPIO_PORT,		\
-		.flags		=3D UPF_BOOT_AUTOCONF,	\
-	}
+#include "8250.h"
=20
 static struct plat_serial8250_port accent_data[] =3D {
-	PORT(0x330, 4),
-	PORT(0x338, 4),
+	SERIAL8250_PORT(0x330, 4),
+	SERIAL8250_PORT(0x338, 4),
 	{ },
 };
=20
diff --git a/drivers/tty/serial/8250/8250_boca.c b/drivers/tty/serial/8=
250/8250_boca.c
index d125dc1..a63b599 100644
--- a/drivers/tty/serial/8250/8250_boca.c
+++ b/drivers/tty/serial/8250/8250_boca.c
@@ -10,32 +10,25 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
-	{						\
-		.iobase		=3D _base,		\
-		.irq		=3D _irq,			\
-		.uartclk	=3D 1843200,		\
-		.iotype		=3D UPIO_PORT,		\
-		.flags		=3D UPF_BOOT_AUTOCONF,	\
-	}
+#include "8250.h"
=20
 static struct plat_serial8250_port boca_data[] =3D {
-	PORT(0x100, 12),
-	PORT(0x108, 12),
-	PORT(0x110, 12),
-	PORT(0x118, 12),
-	PORT(0x120, 12),
-	PORT(0x128, 12),
-	PORT(0x130, 12),
-	PORT(0x138, 12),
-	PORT(0x140, 12),
-	PORT(0x148, 12),
-	PORT(0x150, 12),
-	PORT(0x158, 12),
-	PORT(0x160, 12),
-	PORT(0x168, 12),
-	PORT(0x170, 12),
-	PORT(0x178, 12),
+	SERIAL8250_PORT(0x100, 12),
+	SERIAL8250_PORT(0x108, 12),
+	SERIAL8250_PORT(0x110, 12),
+	SERIAL8250_PORT(0x118, 12),
+	SERIAL8250_PORT(0x120, 12),
+	SERIAL8250_PORT(0x128, 12),
+	SERIAL8250_PORT(0x130, 12),
+	SERIAL8250_PORT(0x138, 12),
+	SERIAL8250_PORT(0x140, 12),
+	SERIAL8250_PORT(0x148, 12),
+	SERIAL8250_PORT(0x150, 12),
+	SERIAL8250_PORT(0x158, 12),
+	SERIAL8250_PORT(0x160, 12),
+	SERIAL8250_PORT(0x168, 12),
+	SERIAL8250_PORT(0x170, 12),
+	SERIAL8250_PORT(0x178, 12),
 	{ },
 };
=20
diff --git a/drivers/tty/serial/8250/8250_exar_st16c554.c b/drivers/tty=
/serial/8250/8250_exar_st16c554.c
index bf53aab..3a7cb82 100644
--- a/drivers/tty/serial/8250/8250_exar_st16c554.c
+++ b/drivers/tty/serial/8250/8250_exar_st16c554.c
@@ -13,20 +13,13 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
-	{						\
-		.iobase		=3D _base,		\
-		.irq		=3D _irq,			\
-		.uartclk	=3D 1843200,		\
-		.iotype		=3D UPIO_PORT,		\
-		.flags		=3D UPF_BOOT_AUTOCONF,	\
-	}
+#include "8250.h"
=20
 static struct plat_serial8250_port exar_data[] =3D {
-	PORT(0x100, 5),
-	PORT(0x108, 5),
-	PORT(0x110, 5),
-	PORT(0x118, 5),
+	SERIAL8250_PORT(0x100, 5),
+	SERIAL8250_PORT(0x108, 5),
+	SERIAL8250_PORT(0x110, 5),
+	SERIAL8250_PORT(0x118, 5),
 	{ },
 };
=20
diff --git a/drivers/tty/serial/8250/8250_fourport.c b/drivers/tty/seri=
al/8250/8250_fourport.c
index be15826..4045180 100644
--- a/drivers/tty/serial/8250/8250_fourport.c
+++ b/drivers/tty/serial/8250/8250_fourport.c
@@ -10,24 +10,20 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)						\
-	{								\
-		.iobase		=3D _base,				\
-		.irq		=3D _irq,					\
-		.uartclk	=3D 1843200,				\
-		.iotype		=3D UPIO_PORT,				\
-		.flags		=3D UPF_BOOT_AUTOCONF | UPF_FOURPORT,	\
-	}
+#include "8250.h"
+
+#define SERIAL8250_FOURPORT(_base, _irq) \
+	SERIAL8250_PORT_FLAGS(_base, _irq, UPF_FOURPORT)
=20
 static struct plat_serial8250_port fourport_data[] =3D {
-	PORT(0x1a0, 9),
-	PORT(0x1a8, 9),
-	PORT(0x1b0, 9),
-	PORT(0x1b8, 9),
-	PORT(0x2a0, 5),
-	PORT(0x2a8, 5),
-	PORT(0x2b0, 5),
-	PORT(0x2b8, 5),
+	SERIAL8250_FOURPORT(0x1a0, 9),
+	SERIAL8250_FOURPORT(0x1a8, 9),
+	SERIAL8250_FOURPORT(0x1b0, 9),
+	SERIAL8250_FOURPORT(0x1b8, 9),
+	SERIAL8250_FOURPORT(0x2a0, 5),
+	SERIAL8250_FOURPORT(0x2a8, 5),
+	SERIAL8250_FOURPORT(0x2b0, 5),
+	SERIAL8250_FOURPORT(0x2b8, 5),
 	{ },
 };
=20
--=20
1.9.1



From - Thu Nov 08 21:38:22 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v6 04/15] tty: serial: 8250: Fix multiline comment style
Date: Wed, 13 Jan 2016 22:29:10 +0100
Lines: 202
Approved: news@gmane.org
Message-ID: <1452720561-28443-5-git-send-email-anton.wuerfel@fau.de>
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NNTP-Posting-Date: Wed, 13 Jan 2016 21:31:36 +0000 (UTC)
Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2126244>

Checkpatch outputs some warnings about incorrect comment style,
which is fixed by this patch.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_ingenic.c | 12 ++++++++----
 drivers/tty/serial/8250/8250_pnp.c     | 14 ++++++++------
 drivers/tty/serial/8250/8250_port.c    | 32 +++++++++++++++++---------=
------
 drivers/tty/serial/8250/serial_cs.c    | 26 +++++++++++++++++---------
 4 files changed, 50 insertions(+), 34 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_ingenic.c b/drivers/tty/seria=
l/8250/8250_ingenic.c
index 49394b4..4d9dc10 100644
--- a/drivers/tty/serial/8250/8250_ingenic.c
+++ b/drivers/tty/serial/8250/8250_ingenic.c
@@ -152,14 +152,18 @@ static void ingenic_uart_serial_out(struct uart_p=
ort *p, int offset, int value)
 		break;
=20
 	case UART_IER:
-		/* Enable receive timeout interrupt with the
-		 * receive line status interrupt */
+		/*
+		 * Enable receive timeout interrupt with the receive line
+		 * status interrupt.
+		 */
 		value |=3D (value & 0x4) << 2;
 		break;
=20
 	case UART_MCR:
-		/* If we have enabled modem status IRQs we should enable modem
-		 * mode. */
+		/*
+		 * If we have enabled modem status IRQs we should enable
+		 * modem mode.
+		 */
 		ier =3D p->serial_in(p, UART_IER);
=20
 		if (ier & UART_IER_MSI)
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 658b392..00846a7 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -357,8 +357,8 @@ static const struct pnp_device_id pnp_dev_table[] =3D=
 {
 	/* Fujitsu Wacom 1FGT Tablet PC device */
 	{	"FUJ02E9",		0	},
 	/*
-	 * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 in
-	 * disguise)
+	 * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6
+	 * in disguise).
 	 */
 	{	"LTS0001",		0       },
 	/* Rockwell's (PORALiNK) 33600 INT PNP */
@@ -367,12 +367,14 @@ static const struct pnp_device_id pnp_dev_table[]=
 =3D {
 	{	"PNPCXXX",		UNKNOWN_DEV	},
 	/* More unknown PnP modems */
 	{	"PNPDXXX",		UNKNOWN_DEV	},
-	/* Winbond CIR port, should not be probed. We should keep track
-	   of it to prevent the legacy serial driver from probing it */
+	/*
+	 * Winbond CIR port, should not be probed. We should keep track of
+	 * it to prevent the legacy serial driver from probing it.
+	 */
 	{	"WEC1022",		CIR_PORT	},
 	/*
-	 * SMSC IrCC SIR/FIR port, should not be probed by serial driver
-	 * as well so its own driver can bind to it.
+	 * SMSC IrCC SIR/FIR port, should not be probed by serial driver as
+	 * well so its own driver can bind to it.
 	 */
 	{	"SMCF010",		CIR_PORT	},
 	{	"",			0	}
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index f2e588e..5375c24 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -250,9 +250,11 @@ static const struct serial8250_config uart_config[=
] =3D {
 		.fcr		=3D UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
 		.flags		=3D UART_CAP_FIFO | UART_CAP_AFE,
 	},
-/* tx_loadsz is set to 63-bytes instead of 64-bytes to implement
-workaround of errata A-008006 which states that tx_loadsz should  be
-configured less than Maximum supported fifo bytes */
+	/*
+	 * tx_loadsz is set to 63-bytes instead of 64-bytes to implement
+	 * workaround of errata A-008006 which states that tx_loadsz should
+	 * be configured less than Maximum supported fifo bytes.
+	 */
 	[PORT_16550A_FSL64] =3D {
 		.name		=3D "16550A_FSL64",
 		.fifo_size	=3D 64,
@@ -1969,23 +1971,23 @@ int serial8250_do_startup(struct uart_port *por=
t)
=20
 	serial8250_set_mctrl(port, port->mctrl);
=20
-	/* Serial over Lan (SoL) hack:
-	   Intel 8257x Gigabit ethernet chips have a
-	   16550 emulation, to be used for Serial Over Lan.
-	   Those chips take a longer time than a normal
-	   serial device to signalize that a transmission
-	   data was queued. Due to that, the above test generally
-	   fails. One solution would be to delay the reading of
-	   iir. However, this is not reliable, since the timeout
-	   is variable. So, let's just don't test if we receive
-	   TX irq. This way, we'll never enable UART_BUG_TXEN.
+	/*
+	 * Serial over Lan (SoL) hack:
+	 * Intel 8257x Gigabit ethernet chips have a 16550 emulation, to be
+	 * used for Serial Over Lan.  Those chips take a longer time than a
+	 * normal serial device to signalize that a transmission data was
+	 * queued. Due to that, the above test generally fails. One solution
+	 * would be to delay the reading of iir. However, this is not
+	 * reliable, since the timeout is variable. So, let's just don't
+	 * test if we receive TX irq.  This way, we'll never enable
+	 * UART_BUG_TXEN.
 	 */
 	if (up->port.flags & UPF_NO_TXEN_TEST)
 		goto dont_test_tx_en;
=20
 	/*
-	 * Do a quick test to see if we receive an
-	 * interrupt when we enable the TX irq.
+	 * Do a quick test to see if we receive an interrupt when we enable
+	 * the TX irq.
 	 */
 	serial_port_out(port, UART_IER, UART_IER_THRI);
 	lsr =3D serial_port_in(port, UART_LSR);
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 6d7a801..2b7309d 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -441,16 +441,20 @@ static int simple_config(struct pcmcia_device *li=
nk)
 	struct serial_info *info =3D link->priv;
 	int i =3D -ENODEV, try;
=20
-	/* First pass: look for a config entry that looks normal.
-	 * Two tries: without IO aliases, then with aliases */
+	/*
+	 * First pass: look for a config entry that looks normal.
+	 * Two tries: without IO aliases, then with aliases.
+	 */
 	link->config_flags |=3D CONF_AUTO_SET_VPP;
 	for (try =3D 0; try < 4; try++)
 		if (!pcmcia_loop_config(link, simple_config_check, &try))
 			goto found_port;
=20
-	/* Second pass: try to find an entry that isn't picky about
-	   its base address, then try to grab any standard serial port
-	   address, and finally try to get any free port. */
+	/*
+	 * Second pass: try to find an entry that isn't picky about
+	 * its base address, then try to grab any standard serial port
+	 * address, and finally try to get any free port.
+	 */
 	if (!pcmcia_loop_config(link, simple_config_check_notpicky, NULL))
 		goto found_port;
=20
@@ -480,8 +484,10 @@ static int multi_config_check(struct pcmcia_device=
 *p_dev, void *priv_data)
 	if (p_dev->resource[1]->end)
 		return -EINVAL;
=20
-	/* The quad port cards have bad CIS's, so just look for a
-	   window larger than 8 ports and assume it will be right */
+	/*
+	 * The quad port cards have bad CIS's, so just look for a
+	 * window larger than 8 ports and assume it will be right.
+	 */
 	if (p_dev->resource[0]->end <=3D 8)
 		return -EINVAL;
=20
@@ -623,8 +629,10 @@ static int serial_config(struct pcmcia_device *lin=
k)
 			break;
 		}
=20
-	/* Another check for dual-serial cards: look for either serial or
-	   multifunction cards that ask for appropriate IO port ranges */
+	/*
+	 * Another check for dual-serial cards: look for either serial or
+	 * multifunction cards that ask for appropriate IO port ranges.
+	 */
 	if ((info->multi =3D=3D 0) &&
 	    (link->has_func_id) &&
 	    (link->socket->pcmcia_pfc =3D=3D 0) &&
--=20
1.9.1



From - Thu Nov 08 21:38:23 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v6 13/15] tty: serial: 8250: Merge duplicate conditions
Date: Wed, 13 Jan 2016 22:29:19 +0100
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Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch refactors a switch case statement by merging an if condition
in the default case into an identical condition right after the switch
statement.
This comes with a slight change in behaviour: If pci_netmos_9900_numpor=
ts
returns 0, an additional warning is printed.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index fbd4222..b22e5a5 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -850,13 +850,13 @@ static int pci_netmos_init(struct pci_dev *dev)
 			break;
=20
 		default:
-			if (num_serial =3D=3D 0 ) {
-				moan_device("unknown NetMos/Mostech device", dev);
-			}
+			break;
 	}
=20
-	if (num_serial =3D=3D 0)
+	if (num_serial =3D=3D 0) {
+		moan_device("unknown NetMos/Mostech device", dev);
 		return -ENODEV;
+	}
=20
 	return num_serial;
 }
--=20
1.9.1



From - Thu Nov 08 21:38:23 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v6 06/15] tty: serial: 8250: Move EXPORT_SYMBOL to function
Date: Wed, 13 Jan 2016 22:29:12 +0100
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
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	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch moves EXPORT_SYMBOL macros directly after the definition of
the corresponding symbol to remove checkpatch warnings.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 3912646..15082ae 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -763,6 +763,7 @@ void serial8250_suspend_port(int line)
=20
 	uart_suspend_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_suspend_port);
=20
 /**
  *	serial8250_resume_port - resume one serial port
@@ -788,6 +789,7 @@ void serial8250_resume_port(int line)
 	}
 	uart_resume_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_resume_port);
=20
 /*
  * Register a set of serial devices attached to a platform device.  Th=
e
@@ -1167,9 +1169,6 @@ static void __exit serial8250_exit(void)
 module_init(serial8250_init);
 module_exit(serial8250_exit);
=20
-EXPORT_SYMBOL(serial8250_suspend_port);
-EXPORT_SYMBOL(serial8250_resume_port);
-
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
--=20
1.9.1



From - Thu Nov 08 21:38:23 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v6 12/15] tty: serial: 8250: Correct conversion specifiers
Date: Wed, 13 Jan 2016 22:29:18 +0100
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes compiler warnings about wrong conversion specifiers us=
ed
in a debug output in 8250_pnp.c. The precise warning is:

drivers/tty/serial/8250/8250_pnp.c: In function =E2=80=98serial_pnp_pro=
be=E2=80=99:
include/linux/dynamic_debug.h:64:16: warning: format =E2=80=98%x=E2=80=99=
 expects argument
of [...]

include/linux/dynamic_debug.h:84:2: note: in expansion of macro
=E2=80=98DEFINE_DYNAMIC_DEBUG_METADATA=E2=80=99

include/linux/device.h:1179:2: note: in expansion of macro
=E2=80=98dynamic_dev_dbg=E2=80=99

drivers/tty/serial/8250/8250_pnp.c:467:2: note: in expansion of macro
=E2=80=98dev_dbg=E2=80=99
  dev_dbg(&dev->dev,
  ^
include/linux/dynamic_debug.h:64:16: warning: format =E2=80=98%lx=E2=80=
=99 expects argument
of [...]

include/linux/dynamic_debug.h:84:2: note: in expansion of macro
=E2=80=98DEFINE_DYNAMIC_DEBUG_METADATA=E2=80=99

include/linux/device.h:1179:2: note: in expansion of macro
=E2=80=98dynamic_dev_dbg=E2=80=99

drivers/tty/serial/8250/8250_pnp.c:467:2: note: in expansion of macro
=E2=80=98dev_dbg=E2=80=99
  dev_dbg(&dev->dev,
  ^

Those warnings never got triggered, because the command was nested
in an #ifdef, which is removed by a patch of this series.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pnp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 0c32c59..92f4412 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -465,8 +465,8 @@ serial_pnp_probe(struct pnp_dev *dev, const struct =
pnp_device_id *dev_id)
 		return -ENODEV;
=20
 	dev_dbg(&dev->dev,
-		 "Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
-		 uart.port.iobase, uart.port.mapbase,
+		 "Setup PNP port: port %lx, mem 0x%lx, irq %d, type %d\n",
+		 uart.port.iobase, (unsigned long)uart.port.mapbase,
 		 uart.port.irq, uart.port.iotype);
=20
 	if (flags & CIR_PORT) {
--=20
1.9.1



From - Thu Nov 08 21:38:23 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: [PATCH v6 11/15] tty: serial: 8250: Remove SERIAL_DEBUG_PNP macro
Date: Wed, 13 Jan 2016 22:29:17 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de,
	=?UTF-8?q?Anton=20W=C3=BCrfel?= <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46rom: Phillip Raffeck <phillip.raffeck@fau.de>

This patch removes the macro SERIAL_DEBUG_PNP, which is used to enable
debugging at compile time.
As SERIAL_DEBUG_PNP is an orphan, the corresponding #ifdef is removed.
To keep the ability to enable debugging at compile time,
the call to printk(KERN_DEBUG ...) is replaced by a corresponding
call to dev_dbg(), which is configurable via CONFIG_DYNAMIC_DEBUG.

Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pnp.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 00846a7..0c32c59 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -464,11 +464,11 @@ serial_pnp_probe(struct pnp_dev *dev, const struc=
t pnp_device_id *dev_id)
 	} else
 		return -ENODEV;
=20
-#ifdef SERIAL_DEBUG_PNP
-	printk(KERN_DEBUG
-		"Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
-		       uart.port.iobase, uart.port.mapbase, uart.port.irq, uart.port=
=2Eiotype);
-#endif
+	dev_dbg(&dev->dev,
+		 "Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
+		 uart.port.iobase, uart.port.mapbase,
+		 uart.port.irq, uart.port.iotype);
+
 	if (flags & CIR_PORT) {
 		uart.port.flags |=3D UPF_FIXED_PORT | UPF_FIXED_TYPE;
 		uart.port.type =3D PORT_8250_CIR;
--=20
1.9.1

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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v6 05/15] tty: serial: 8250: Remove else after return
Date: Wed, 13 Jan 2016 22:29:11 +0100
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Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes checkpatch warnings about unnecessary else blocks afte=
r
return statements.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 534ca18..8543719 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -805,10 +805,10 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
=20
 	pi =3D (c & 0xff);
=20
-	if (pi =3D=3D 2) {
+	if (pi =3D=3D 2)
 		return 1;
-	} else if ((pi =3D=3D 0) &&
-			   (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) {
+
+	if ((pi =3D=3D 0) && (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) =
{
 		/* two possibilities: 0x30ps encodes number of parallel and
 		 * serial ports, or 0x1000 indicates *something*. This is not
 		 * immediately obvious, since the 2s1p+4s configuration seems
@@ -816,12 +816,12 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
 		 * advertising the same function 3 as the 4s+2s1p config.
 		 */
 		sub_serports =3D dev->subsystem_device & 0xf;
-		if (sub_serports > 0) {
+		if (sub_serports > 0)
 			return sub_serports;
-		} else {
-			dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on a=
mbiguous config.\n");
-			return 0;
-		}
+
+		dev_err(&dev->dev,
+			"NetMos/Mostech serial driver ignoring port on ambiguous config.\n"=
);
+		return 0;
 	}
=20
 	moan_device("unknown NetMos/Mostech program interface", dev);
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v6 10/15] tty: serial: 8250: Suitably replace printk
Date: Wed, 13 Jan 2016 22:29:16 +0100
Lines: 160
Approved: news@gmane.org
Message-ID: <1452720561-28443-11-git-send-email-anton.wuerfel@fau.de>
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de,
	=?UTF-8?q?Anton=20W=C3=BCrfel?= <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46rom: Phillip Raffeck <phillip.raffeck@fau.de>

This patch replaces printk by the corresponding variant of dev_* in ord=
er
to fix checkpatch warnings. If no suitable device pointer is present, t=
he
corresponding pr_* variant is used.

Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c  |  5 ++---
 drivers/tty/serial/8250/8250_gsc.c   |  7 ++++---
 drivers/tty/serial/8250/8250_hp300.c | 20 +++++++++++---------
 drivers/tty/serial/8250/8250_port.c  |  3 +--
 4 files changed, 18 insertions(+), 17 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index b60b58b..d6b4906 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1094,9 +1094,8 @@ static int __init serial8250_init(void)
=20
 	serial8250_isa_init_ports();
=20
-	printk(KERN_INFO "Serial: 8250/16550 driver, "
-		"%d ports, IRQ sharing %sabled\n", nr_uarts,
-		share_irqs ? "en" : "dis");
+	pr_info("Serial: 8250/16550 driver, %d ports, IRQ sharing %sabled\n",
+		nr_uarts, share_irqs ? "en" : "dis");
=20
 #ifdef CONFIG_SPARC
 	ret =3D sunserial_register_minors(&serial8250_reg, UART_NR);
diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/82=
50/8250_gsc.c
index 2e3ea1a..b1e6ae9 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -42,7 +42,7 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
 		 * the user what they're missing.
 		 */
 		if (parisc_parent(dev)->id.hw_type !=3D HPHW_IOA)
-			printk(KERN_INFO
+			dev_info(&dev->dev,
 				"Serial: device 0x%llx not configured.\n"
 				"Enable support for Wax, Lasi, Asp or Dino.\n",
 				(unsigned long long)dev->hpa.start);
@@ -66,8 +66,9 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
=20
 	err =3D serial8250_register_8250_port(&uart);
 	if (err < 0) {
-		printk(KERN_WARNING
-			"serial8250_register_8250_port returned error %d\n", err);
+		dev_warn(&dev->dev,
+			"serial8250_register_8250_port returned error %d\n",
+			err);
 		iounmap(uart.port.membase);
 		return err;
 	}
diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index cf566bb..38166db 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -110,7 +110,7 @@ int __init hp300_setup_serial_console(void)
 	/* Check for APCI console */
 	if (scode =3D=3D 256) {
 #ifdef CONFIG_HPAPCI
-		printk(KERN_INFO "Serial console is HP APCI 1\n");
+		pr_info("Serial console is HP APCI 1\n");
=20
 		port.uartclk =3D HPAPCI_BAUD_BASE * 16;
 		port.mapbase =3D (FRODO_BASE + FRODO_APCI_OFFSET(1));
@@ -118,7 +118,7 @@ int __init hp300_setup_serial_console(void)
 		port.regshift =3D 2;
 		add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is APCI but support is disabled =
(CONFIG_HPAPCI)!\n");
+		pr_warn("Serial console is APCI but support is disabled (CONFIG_HPAP=
CI)!\n");
 		return 0;
 #endif
 	} else {
@@ -127,7 +127,7 @@ int __init hp300_setup_serial_console(void)
 		if (!pa)
 			return 0;
=20
-		printk(KERN_INFO "Serial console is HP DCA at select code %d\n", sco=
de);
+		pr_info("Serial console is HP DCA at select code %d\n", scode);
=20
 		port.uartclk =3D HPDCA_BAUD_BASE * 16;
 		port.mapbase =3D (pa + UART_OFFSET);
@@ -141,13 +141,13 @@ int __init hp300_setup_serial_console(void)
 		if (DIO_ID(pa + DIO_VIRADDRBASE) & 0x80)
 			add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is DCA but support is disabled (=
CONFIG_HPDCA)!\n");
+		pr_warn("Serial console is DCA but support is disabled (CONFIG_HPDCA=
)!\n");
 		return 0;
 #endif
 	}
=20
 	if (early_serial_setup(&port) < 0)
-		printk(KERN_WARNING "hp300_setup_serial_console(): early_serial_setu=
p() failed.\n");
+		pr_warn("%s: early_serial_setup() failed.\n", __func__);
 	return 0;
 }
 #endif /* CONFIG_SERIAL_8250_CONSOLE */
@@ -179,8 +179,9 @@ static int hpdca_init_one(struct dio_dev *d,
 	line =3D serial8250_register_8250_port(&uart);
=20
 	if (line < 0) {
-		printk(KERN_NOTICE "8250_hp300: register_serial() DCA scode %d"
-		       " irq %d failed\n", d->scode, uart.port.irq);
+		dev_notice(&d->dev,
+			  "8250_hp300: register_serial() DCA scode %d irq %d failed\n",
+			  d->scode, uart.port.irq);
 		return -ENOMEM;
 	}
=20
@@ -260,8 +261,9 @@ static int __init hp300_8250_init(void)
 		line =3D serial8250_register_8250_port(&uart);
=20
 		if (line < 0) {
-			printk(KERN_NOTICE "8250_hp300: register_serial() APCI"
-			       " %d irq %d failed\n", i, uart.port.irq);
+			dev_notice(uart.port.dev,
+				   "8250_hp300: register_serial() APCI %d irq %d failed\n",
+				   i, uart.port.irq);
 			kfree(port);
 			continue;
 		}
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 5375c24..25fd6b4 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1222,8 +1222,7 @@ static void autoconfig(struct uart_8250_port *up)
 out_lock:
 	spin_unlock_irqrestore(&port->lock, flags);
 	if (up->capabilities !=3D old_capabilities) {
-		printk(KERN_WARNING
-		       "ttyS%d: detected caps %08x should be %08x\n",
+		pr_warn("ttyS%d: detected caps %08x should be %08x\n",
 		       serial_index(port), old_capabilities,
 		       up->capabilities);
 	}
--=20
1.9.1



From - Thu Nov 08 21:38:23 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v6 09/15] tty: serial: 8250: Fix multi-line strings
Date: Wed, 13 Jan 2016 22:29:15 +0100
Lines: 55
Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merged user-visible multi-line strings into a single line according to =
the
Linux Kernel Coding Style, which allows user-visible strings to exceed =
the
maximum line length of 80 characters. The main reason for this is to
facilitate grepping for these strings.
However, some strings were ignored in this patch, because the use of
format specifiers breaks the ability to grep anyway.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 3 +--
 drivers/tty/serial/8250/serial_cs.c | 4 ++--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index d042ad5..b60b58b 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1173,8 +1173,7 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
 module_param(share_irqs, uint, 0644);
-MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices"
-	" (unsafe)");
+MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices (unsafe)");
=20
 module_param(nr_uarts, uint, 0644);
 MODULE_PARM_DESC(nr_uarts, "Maximum number of UARTs supported. (1-" __=
MODULE_STRING(CONFIG_SERIAL_8250_NR_UARTS) ")");
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 2b7309d..933c268 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -533,8 +533,8 @@ static int multi_config(struct pcmcia_device *link)
 		info->multi =3D 2;
 		if (pcmcia_loop_config(link, multi_config_check_notpicky,
 				       &base2)) {
-			dev_warn(&link->dev, "no usable port range "
-			       "found, giving up\n");
+			dev_warn(&link->dev,
+				 "no usable port range found, giving up\n");
 			return -ENODEV;
 		}
 	}
--=20
1.9.1



From - Thu Nov 08 21:38:23 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v6 07/15] tty: serial: 8250: Fix line continuation warning
Date: Wed, 13 Jan 2016 22:29:13 +0100
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	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
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	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
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To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46ixed checkpatch warning about an unnecessary line continuation in a
multi-line variable assignment.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 5e1b464..cf566bb 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -248,8 +248,8 @@ static int __init hp300_8250_init(void)
=20
 		/* Memory mapped I/O */
 		uart.port.iotype =3D UPIO_MEM;
-		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ \
-			      | UPF_BOOT_AUTOCONF;
+		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ
+				| UPF_BOOT_AUTOCONF;
 		/* XXX - no interrupt support yet */
 		uart.port.irq =3D 0;
 		uart.port.uartclk =3D HPAPCI_BAUD_BASE * 16;
--=20
1.9.1



From - Thu Nov 08 21:38:23 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v6 08/15] tty: serial: 8250: Add parentheses to macro
Date: Wed, 13 Jan 2016 22:29:14 +0100
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	Joachim Eastwood <manabian@gmail.com>,
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	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes a checkpatch warning caused by missing parentheses
in the definition of a macro.
=46urthermore redundant parentheses are removed in an assignment.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 2 +-
 drivers/tty/serial/8250/8250_pci.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 15082ae..d042ad5 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -686,7 +686,7 @@ static int __init univ8250_console_init(void)
 }
 console_initcall(univ8250_console_init);
=20
-#define SERIAL8250_CONSOLE	&univ8250_console
+#define SERIAL8250_CONSOLE	(&univ8250_console)
 #else
 #define SERIAL8250_CONSOLE	NULL
 #endif
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 8543719..fbd4222 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -803,7 +803,7 @@ static int pci_netmos_9900_numports(struct pci_dev =
*dev)
 	unsigned int pi;
 	unsigned short sub_serports;
=20
-	pi =3D (c & 0xff);
+	pi =3D c & 0xff;
=20
 	if (pi =3D=3D 2)
 		return 1;
--=20
1.9.1



From - Thu Nov 08 21:38:23 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v6 03/15] tty: serial: 8250: Fix braces after struct
Date: Wed, 13 Jan 2016 22:29:09 +0100
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	Joachim Eastwood <manabian@gmail.com>,
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	Masahiro Yamada <yamada.masahiro@socionext.com>,
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	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
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To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes a checkpatch warning by moving an opening curly brace
to its correct position.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 2891958..5e1b464 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -24,8 +24,7 @@
 #endif
=20
 #ifdef CONFIG_HPAPCI
-struct hp300_port
-{
+struct hp300_port {
 	struct hp300_port *next;	/* next port */
 	int line;			/* line (tty) number */
 };
--=20
1.9.1



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Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v6 02/15] tty: serial: 8250: Replace spaces with tabs
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	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2126257>

Indentation is changed to match the correct format of using tabs instea=
d
of spaces wherever possible.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c  | 12 ++++++------
 drivers/tty/serial/8250/8250_port.c |  4 ++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index ecd5a32..534ca18 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -721,7 +721,7 @@ static int pci_ni8430_init(struct pci_dev *dev)
 	 */
 	pcibios_resource_to_bus(dev->bus, &region, &dev->resource[bar]);
 	device_window =3D ((region.start + MITE_IOWBSR1_WIN_OFFSET) & 0xfffff=
f00)
-	                | MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
+			| MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
 	writel(device_window, p + MITE_IOWBSR1);
=20
 	/* Set window access to go to RAMSEL IO address space */
@@ -1763,7 +1763,7 @@ xr17v35x_has_slave(struct serial_private *priv)
 	const int dev_id =3D priv->dev->device;
=20
 	return ((dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V4358) ||
-	        (dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
+		(dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
 }
=20
 static int
@@ -1863,8 +1863,8 @@ pci_fastcom335_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch353_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16550A;
@@ -1873,8 +1873,8 @@ pci_wch_ch353_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch38x_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16850;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 7f3bd7b..f2e588e 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -52,7 +52,7 @@
 #define DEBUG_AUTOCONF(fmt...)	do { } while (0)
 #endif
=20
-#define BOTH_EMPTY 	(UART_LSR_TEMT | UART_LSR_THRE)
+#define BOTH_EMPTY	(UART_LSR_TEMT | UART_LSR_THRE)
=20
 /*
  * Here we define the default xmit fifo size used for each type of UAR=
T.
@@ -2254,7 +2254,7 @@ serial8250_get_baud_rate(struct uart_port *port, =
struct ktermios *termios,
=20
 void
 serial8250_do_set_termios(struct uart_port *port, struct ktermios *ter=
mios,
-		          struct ktermios *old)
+			  struct ktermios *old)
 {
 	struct uart_8250_port *up =3D up_to_u8250p(port);
 	unsigned char cval;
--=20
1.9.1



From - Thu Nov 08 21:38:23 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: [PATCH v6 01/15] tty: serial: 8250: Fix whitespace errors
Date: Wed, 13 Jan 2016 22:29:07 +0100
Lines: 295
Approved: news@gmane.org
Message-ID: <1452720561-28443-2-git-send-email-anton.wuerfel@fau.de>
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26395>

This patch fixes whitespace errors reported by checkpatch to increase
readability. Main focus is on missing spaces after commas in
function headers and macros (like foo,bar edited to foo, bar).

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_acorn.c |  2 +-
 drivers/tty/serial/8250/8250_hub6.c  |  2 +-
 drivers/tty/serial/8250/8250_pci.c   |  8 +++--
 drivers/tty/serial/8250/8250_port.c  |  2 ++
 drivers/tty/serial/8250/serial_cs.c  | 60 ++++++++++++++++++----------=
--------
 5 files changed, 39 insertions(+), 35 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_acorn.c b/drivers/tty/serial/=
8250/8250_acorn.c
index 549aa07..402dfdd 100644
--- a/drivers/tty/serial/8250/8250_acorn.c
+++ b/drivers/tty/serial/8250/8250_acorn.c
@@ -70,7 +70,7 @@ serial_card_probe(struct expansion_card *ec, const st=
ruct ecard_id *id)
 	uart.port.regshift	=3D 2;
 	uart.port.dev	=3D &ec->dev;
=20
-	for (i =3D 0; i < info->num_ports; i ++) {
+	for (i =3D 0; i < info->num_ports; i++) {
 		uart.port.membase =3D info->vaddr + type->offset[i];
 		uart.port.mapbase =3D bus_addr + type->offset[i];
=20
diff --git a/drivers/tty/serial/8250/8250_hub6.c b/drivers/tty/serial/8=
250/8250_hub6.c
index a5c778e..27124e2 100644
--- a/drivers/tty/serial/8250/8250_hub6.c
+++ b/drivers/tty/serial/8250/8250_hub6.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define HUB6(card,port)							\
+#define HUB6(card, port)						\
 	{								\
 		.iobase		=3D 0x302,				\
 		.irq		=3D 3,					\
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 4097f3f..ecd5a32 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1198,8 +1198,9 @@ static int pci_quatech_has_qmcr(struct uart_8250_=
port *port)
=20
 static int pci_quatech_test(struct uart_8250_port *port)
 {
-	u8 reg;
-	u8 qopr =3D pci_quatech_rqopr(port);
+	u8 reg, qopr;
+
+	qopr =3D pci_quatech_rqopr(port);
 	pci_quatech_wqopr(port, qopr & QPCR_TEST_FOR1);
 	reg =3D pci_quatech_rqopr(port) & 0xC0;
 	if (reg !=3D QPCR_TEST_GET1)
@@ -1286,6 +1287,7 @@ static int pci_quatech_init(struct pci_dev *dev)
 		unsigned long base =3D pci_resource_start(dev, 0);
 		if (base) {
 			u32 tmp;
+
 			outl(inl(base + 0x38) | 0x00002000, base + 0x38);
 			tmp =3D inl(base + 0x3c);
 			outl(tmp | 0x01000000, base + 0x3c);
@@ -4502,7 +4504,7 @@ static struct pci_device_id serial_pci_tbl[] =3D =
{
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b0_bt_2_921600 },
 	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI958,
-		PCI_ANY_ID , PCI_ANY_ID, 0, 0,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b2_8_1152000 },
=20
 	/*
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 52d82d2..7f3bd7b 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1327,6 +1327,7 @@ static void serial8250_start_tx(struct uart_port =
*port)
=20
 		if (up->bugs & UART_BUG_TXEN) {
 			unsigned char lsr;
+
 			lsr =3D serial_in(up, UART_LSR);
 			up->lsr_saved_flags |=3D lsr & LSR_SAVE_FLAGS;
 			if (lsr & UART_LSR_THRE)
@@ -1734,6 +1735,7 @@ static void wait_for_xmitr(struct uart_8250_port =
*up, int bits)
 	/* Wait up to 1s for flow control if necessary */
 	if (up->port.flags & UPF_CONS_FLOW) {
 		unsigned int tmout;
+
 		for (tmout =3D 1000000; tmout; tmout--) {
 			unsigned int msr =3D serial_in(up, UART_MSR);
 			up->msr_saved_flags |=3D msr & MSR_SAVE_FLAGS;
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 4d180c9..6d7a801 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -28,7 +28,7 @@
     and other provisions required by the GPL.  If you do not delete
     the provisions above, a recipient may use your version of this
     file under either the MPL or the GPL.
-   =20
+
 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
=20
 #include <linux/module.h>
@@ -257,7 +257,7 @@ static const struct serial_quirk quirks[] =3D {
 };
=20
=20
-static int serial_config(struct pcmcia_device * link);
+static int serial_config(struct pcmcia_device *link);
=20
=20
 static void serial_remove(struct pcmcia_device *link)
@@ -309,7 +309,7 @@ static int serial_probe(struct pcmcia_device *link)
 	dev_dbg(&link->dev, "serial_attach()\n");
=20
 	/* Create new serial device */
-	info =3D kzalloc(sizeof (*info), GFP_KERNEL);
+	info =3D kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 	info->p_dev =3D link;
@@ -339,7 +339,7 @@ static void serial_detach(struct pcmcia_device *lin=
k)
=20
 /*=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
=20
-static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo * info,
+static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo *info,
 			unsigned int iobase, int irq)
 {
 	struct uart_8250_port uart;
@@ -600,7 +600,7 @@ static int serial_check_for_multi(struct pcmcia_dev=
ice *p_dev,  void *priv_data)
 }
=20
=20
-static int serial_config(struct pcmcia_device * link)
+static int serial_config(struct pcmcia_device *link)
 {
 	struct serial_info *info =3D link->priv;
 	int i;
@@ -701,7 +701,7 @@ static const struct pcmcia_device_id serial_ids[] =3D=
 {
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "LINKSYS", "PCMLM336", 0xf7cb0b07, 0x7=
a821b58),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf5=
10db04, 0x52d21e1e),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MICRO RESEARCH", "COMBO-L/M-336", 0xb=
2ced065, 0x3ced0555),
-	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001" ,0x18df0ba0 ,0x831=
b1064),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001", 0x18df0ba0, 0x831=
b1064),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Diamonds=
 Modem+Ethernet", 0xc2f80cd, 0x656947b9),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Hearts M=
odem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "PCMCIAs", "ComboCard", 0xdcfe12d3, 0x=
cd8906cc),
@@ -797,30 +797,30 @@ static const struct pcmcia_device_id serial_ids[]=
 =3D {
 	PCMCIA_DEVICE_CIS_PROD_ID123("ADVANTECH", "COMpad-32/85", "1.0", 0x96=
913a85, 0x8fbe92ae, 0x0877b627, "cis/COMpad2.cis"),
 	PCMCIA_DEVICE_CIS_PROD_ID2("RS-COM 2P", 0xad20b156, "cis/RS-COM-2P.ci=
s"),
 	PCMCIA_DEVICE_CIS_MANF_CARD(0x0013, 0x0000, "cis/GLOBETROTTER.cis"),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100  1.00.",0x19ca78af,0xf964f42b),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100",0x19ca78af,0x71d98e83),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232  1.00.",0x19ca78af,0x69fb7490),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232",0x19ca78af,0xb6bc0235),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232",0x63f2e0bd,0xb9e175d3),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232-5",0x63f2e0bd,0xfce33442),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232",0x3beb8cf2,0x171e=
7190),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232-5",0x3beb8cf2,0x20=
da4262),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF428",0x3beb8cf2,0xea5d=
d57d),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF500",0x3beb8cf2,0xd772=
55fa),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: IC232",0x3beb8cf2,0x6a70=
9903),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: SL232",0x3beb8cf2,0x1843=
0676),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: XL232",0x3beb8cf2,0x6f93=
3767),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial+Parallel Port: SP230",0x=
3beb8cf2,0xdb9e58bc),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(2,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(3,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100  1.00.", 0x19ca78af, 0xf964f42b),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100", 0x19ca78af, 0x71d98e83),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232  1.00.", 0x19ca78af, 0x69fb7490),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232", 0x19ca78af, 0xb6bc0235),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232", 0x63f2e0bd, 0xb9e175d3),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232-5", 0x63f2e0bd, 0xfce33442),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232", 0x3beb8cf2, 0x1=
71e7190),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232-5", 0x3beb8cf2, 0=
x20da4262),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF428", 0x3beb8cf2, 0xe=
a5dd57d),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF500", 0x3beb8cf2, 0xd=
77255fa),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: IC232", 0x3beb8cf2, 0x6=
a709903),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: SL232", 0x3beb8cf2, 0x1=
8430676),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: XL232", 0x3beb8cf2, 0x6=
f933767),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial+Parallel Port: SP230",=
 0x3beb8cf2, 0xdb9e58bc),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(2, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(3, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
 	PCMCIA_DEVICE_MANF_CARD(0x0279, 0x950b),
 	/* too generic */
 	/* PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0160, 0x0002), */
--=20
1.9.1

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From - Thu Nov 08 21:38:23 2018
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X-Mozilla-Keys:                                                                                 
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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: Re: [PATCH v6 00/15] tty: serial: 8250: Fix checkpatch warnings
Date: Thu, 14 Jan 2016 11:13:00 +0200
Organization: Intel Finland Oy
Lines: 154
Approved: news@gmane.org
Message-ID: <1452762780.2521.20.camel@linux.intel.com>
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de
To: Anton Wuerfel <anton.wuerfel@fau.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On Wed, 2016-01-13 at 22:29 +0100, Anton Wuerfel wrote:
> Hello Andy,
>=20
> > Also, please thin out the Cc list, I would recommend remove just
> > ordinary commiters (with maybe few exceptions) and leave
> > maintainers.=C2=A0
> > Moreover some addresses are bounced.
> I thinned out the Cc list and left over only maintainers and major
> contributors to the code.
>=20
> > Yep!
> > However, you forgot to fix switch-case as well.
> Phillip and me are kind of git magicians. We can make code disappear
> during
> rebase :-) The piece of code was part of a commit, but it never made
> it into
> the final patch file.
> =C2=A0
> I hope, there are no major issues with our patch set.

There are comments regarding patch 12, otherwise FWIW:

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>


>=20
> Regards,
> Anton Wuerfel
> Phillip Raffeck
>=20
> This patch set fixes several checkpatch warnings in tty/serial/8250.
>=20
> Patch 1/15:=C2=A0=C2=A0Adds missing spaces (mainly to function/macro =
headers)
> Patch 2/15:=C2=A0=C2=A0Replace spaces with tabs wherever possible
> Patch 3/15:=C2=A0=C2=A0Slight patch which moves an opening curly brac=
e
> Patch 4/15:=C2=A0=C2=A0Fixes multiline comment style
> Patch 5/15:=C2=A0=C2=A0Removes else blocks after return statements
> Patch 6/15:=C2=A0=C2=A0Slight patch which moves EXPORT_SYMBOL macro t=
o correct
> position
> Patch 7/15:=C2=A0=C2=A0Slight patch which removes an unneccessary lin=
e
> continuation
> Patch 8/15:=C2=A0=C2=A0Slight patch which adds parentheses to a macro
> definition
> Patch 9/15:=C2=A0=C2=A0Merges user-visible multiline strings to a sin=
gle line
> Patch 10/15: Replace printk by dev_* or pr_* where appropriate
> Patch 11/15: Remove orphaned debug macro
> Patch 12/15: Fix warnings in dev_dbg by adding two casts
> Patch 13/15: Fixes code indentation
> Patch 14/15: Add a generic port macro
> Patch 15/15: Refactor a switch/case statement
>=20
> Remaining checkpatch warnings after applying this patch series:
>=20
> -line over 80 characters
> 	This error mostly occurs in serial_cs.c, which contains long-
> lined
> 	macro calls. However, splitting these calls into multiple lines
> would
> 	not increase readability.
>=20
> -externs should be avoided in .c files
> 	This occurs in 8250_hp300.c. There is no corresponding header
> file
> 	the extern statement could be moved to. It could be moved to
> 8250.h
> 	but this would affect other .c files.
>=20
> -Use #include <linux/*.h> instead of <asm/*.h>
> 	This warning has been left open for more experienced kernel
> hackers.
> 	This patch series is about style issues. We do not intend to
> alter
> 	the code behavior.
> -struct uart_ops should normally be const
> 	This warning only occurs in 8250_core.c. The corresponding
> struct
> 	cannot be declared as const because it is altered in
> 	serial8250_isa_init_ports(). Maybe a checkpatch exception
> should
> 	be added for this particular warning.
>=20
> -quoted string split across lines
> 	These strings were ignored because they otherwise would exceed
> 	80 characters in a single line. These particular strings use
> 	format specifiers, which break the ability to grep for them
> anyway.
>=20
> Anton Wuerfel (15):
> Phillip Raffeck (15):
> =C2=A0 tty: serial: 8250: Fix whitespace errors
> =C2=A0 tty: serial: 8250: Replace spaces with tabs
> =C2=A0 tty: serial: 8250: Fix braces after struct
> =C2=A0 tty: serial: 8250: Fix multiline comment style
> =C2=A0 tty: serial: 8250: Remove else after return
> =C2=A0 tty: serial: 8250: Move EXPORT_SYMBOL to function
> =C2=A0 tty: serial: 8250: Fix line continuation warning
> =C2=A0 tty: serial: 8250: Add parentheses to macro
> =C2=A0 tty: serial: 8250: Fix multi-line strings
> =C2=A0 tty: serial: 8250: Correct conversion specifiers
> =C2=A0 tty: serial: 8250: Merge duplicate conditions
> =C2=A0 tty: serial: 8250: Fix indentation warnings
> =C2=A0 tty: serial: 8250: Add generic port init macro
> =C2=A0 tty: serial: 8250: Suitably replace printk
> =C2=A0 tty: serial: 8250: Remove SERIAL_DEBUG_PNP macro
>=20
> =C2=A0drivers/tty/serial/8250/8250.h=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0| 12 ++++
> =C2=A0drivers/tty/serial/8250/8250_accent.c=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0| 13 +---
> =C2=A0drivers/tty/serial/8250/8250_acorn.c=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0|=C2=A0=C2=A02 +-
> =C2=A0drivers/tty/serial/8250/8250_boca.c=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0| 41 ++++++-------
> =C2=A0drivers/tty/serial/8250/8250_core.c=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0| 15 ++---
> =C2=A0drivers/tty/serial/8250/8250_exar_st16c554.c | 17 ++----
> =C2=A0drivers/tty/serial/8250/8250_fourport.c=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0| 28 ++++-----
> =C2=A0drivers/tty/serial/8250/8250_gsc.c=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0|=C2=A0=C2=A07 ++-
> =C2=A0drivers/tty/serial/8250/8250_hp300.c=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0| 27 +++++----
> =C2=A0drivers/tty/serial/8250/8250_hub6.c=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0|=C2=A0=C2=A02 +-
> =C2=A0drivers/tty/serial/8250/8250_ingenic.c=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0| 12 ++--
> =C2=A0drivers/tty/serial/8250/8250_pci.c=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0| 60 ++++++++++------
> ---
> =C2=A0drivers/tty/serial/8250/8250_pnp.c=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0| 28 +++++----
> =C2=A0drivers/tty/serial/8250/8250_port.c=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0| 47 ++++++++-------
> =C2=A0drivers/tty/serial/8250/serial_cs.c=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0| 90 +++++++++++++++---
> ----------
> =C2=A015 files changed, 203 insertions(+), 198 deletions(-)
>=20

--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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From - Thu Nov 08 21:38:24 2018
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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: Re: [PATCH v6 12/15] tty: serial: 8250: Correct conversion
 specifiers
Date: Thu, 14 Jan 2016 11:31:24 +0200
Organization: Intel Finland Oy
Lines: 110
Approved: news@gmane.org
Message-ID: <1452763884.2521.23.camel@linux.intel.com>
References: <1452720561-28443-1-git-send-email-anton.wuerfel@fau.de>
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
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To: Anton Wuerfel <anton.wuerfel@fau.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On Wed, 2016-01-13 at 22:29 +0100, Anton Wuerfel wrote:
> This patch fixes compiler warnings about wrong conversion specifiers=C2=
=A0

This patch obviously doesn't _fix_warnings_, rather changes specifiers
to get it consistent with argument.

> used
> in a debug output in 8250_pnp.c. The precise warning is:

Usually there is no need to cite all lines=E2=80=A6

>=20
> drivers/tty/serial/8250/8250_pnp.c: In function =E2=80=98serial_pnp_p=
robe=E2=80=99:
> include/linux/dynamic_debug.h:64:16: warning: format =E2=80=98%x=E2=80=
=99 expects
> argument
> of [...]

OK.

>=20
> include/linux/dynamic_debug.h:84:2: note: in expansion of macro
> =E2=80=98DEFINE_DYNAMIC_DEBUG_METADATA=E2=80=99
>=20
> include/linux/device.h:1179:2: note: in expansion of macro
> =E2=80=98dynamic_dev_dbg=E2=80=99

Redundant.

>=20
> drivers/tty/serial/8250/8250_pnp.c:467:2: note: in expansion of macro
> =E2=80=98dev_dbg=E2=80=99
> =C2=A0 dev_dbg(&dev->dev,
> =C2=A0 ^
> include/linux/dynamic_debug.h:64:16: warning: format =E2=80=98%lx=E2=80=
=99 expects
> argument
> of [...]

OK.

>=20
> include/linux/dynamic_debug.h:84:2: note: in expansion of macro
> =E2=80=98DEFINE_DYNAMIC_DEBUG_METADATA=E2=80=99
>=20
> include/linux/device.h:1179:2: note: in expansion of macro
> =E2=80=98dynamic_dev_dbg=E2=80=99

Redundant.

>=20
> drivers/tty/serial/8250/8250_pnp.c:467:2: note: in expansion of macro
> =E2=80=98dev_dbg=E2=80=99
> =C2=A0 dev_dbg(&dev->dev,
> =C2=A0 ^
>=20
> Those warnings never got triggered, because the command was nested
> in an #ifdef, which is removed by a patch of this series.
>=20
> Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
> Cc: linux-kernel@i4.cs.fau.de
> ---
> =C2=A0drivers/tty/serial/8250/8250_pnp.c | 4 ++--
> =C2=A01 file changed, 2 insertions(+), 2 deletions(-)
>=20
> diff --git a/drivers/tty/serial/8250/8250_pnp.c
> b/drivers/tty/serial/8250/8250_pnp.c
> index 0c32c59..92f4412 100644
> --- a/drivers/tty/serial/8250/8250_pnp.c
> +++ b/drivers/tty/serial/8250/8250_pnp.c
> @@ -465,8 +465,8 @@ serial_pnp_probe(struct pnp_dev *dev, const
> struct pnp_device_id *dev_id)
> =C2=A0		return -ENODEV;
> =C2=A0
> =C2=A0	dev_dbg(&dev->dev,
> -		=C2=A0"Setup PNP port: port %x, mem 0x%lx, irq %d, type
> %d\n",
> -		=C2=A0uart.port.iobase, uart.port.mapbase,
> +		=C2=A0"Setup PNP port: port %lx, mem 0x%lx, irq %d, type
> %d\n",
> +		=C2=A0uart.port.iobase, (unsigned long)uart.port.mapbase,

This approach is not fully correct. In Linux kernel we have %p
extensions to cover some custom types such as resource_size_t, of which
mapbase is.

Thus,

"Setup PNP port: port %lx, mem %pa, irq %d, type %d\n",
uart.port.iobase, &uart.port.mapbase,

looks better.

> =C2=A0		=C2=A0uart.port.irq, uart.port.iotype);
> =C2=A0
> =C2=A0	if (flags & CIR_PORT) {

--=20
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 00/15] tty: serial: 8250: Fix checkpatch warnings
Date: Thu, 14 Jan 2016 16:08:09 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
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	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch set fixes several checkpatch warnings in tty/serial/8250.

Patch 1/15:  Adds missing spaces (mainly to function/macro headers)
Patch 2/15:  Replace spaces with tabs wherever possible
Patch 3/15:  Slight patch which moves an opening curly brace
Patch 4/15:  Fixes multiline comment style
Patch 5/15:  Removes else blocks after return statements
Patch 6/15:  Slight patch which moves EXPORT_SYMBOL macro to correct
position
Patch 7/15:  Slight patch which removes an unneccessary line continuation
Patch 8/15:  Slight patch which adds parentheses to a macro definition
Patch 9/15:  Merges user-visible multiline strings to a single line
Patch 10/15: Replace printk by dev_* or pr_* where appropriate
Patch 11/15: Remove orphaned debug macro
Patch 12/15: Fix warnings in dev_dbg by adding two casts
Patch 13/15: Refactor a switch/case statement
Patch 14/15: Fixes code indentation
Patch 15/15: Add a generic port macro

Remaining checkpatch warnings after applying this patch series:

-line over 80 characters
	This error mostly occurs in serial_cs.c, which contains long-lined
	macro calls. However, splitting these calls into multiple lines would
	not increase readability.

-externs should be avoided in .c files
	This occurs in 8250_hp300.c. There is no corresponding header file
	the extern statement could be moved to. It could be moved to 8250.h
	but this would affect other .c files.

-Use #include <linux/*.h> instead of <asm/*.h>
	This warning has been left open for more experienced kernel hackers.
	This patch series is about style issues. We do not intend to alter
	the code behavior.
-struct uart_ops should normally be const
	This warning only occurs in 8250_core.c. The corresponding struct
	cannot be declared as const because it is altered in
	serial8250_isa_init_ports(). Maybe a checkpatch exception should
	be added for this particular warning.

-quoted string split across lines
	These strings were ignored because they otherwise would exceed
	80 characters in a single line. These particular strings use
	format specifiers, which break the ability to grep for them anyway.

Anton Wuerfel (15):
Phillip Raffeck (15):
  tty: serial: 8250: Fix whitespace errors
  tty: serial: 8250: Replace spaces with tabs
  tty: serial: 8250: Fix braces after struct
  tty: serial: 8250: Fix multiline comment style
  tty: serial: 8250: Remove else after return
  tty: serial: 8250: Move EXPORT_SYMBOL to function
  tty: serial: 8250: Fix line continuation warning
  tty: serial: 8250: Add parentheses to macro
  tty: serial: 8250: Fix multi-line strings
  tty: serial: 8250: Correct conversion specifiers
  tty: serial: 8250: Merge duplicate conditions
  tty: serial: 8250: Fix indentation warnings
  tty: serial: 8250: Add generic port init macro
  tty: serial: 8250: Suitably replace printk
  tty: serial: 8250: Remove SERIAL_DEBUG_PNP macro

 drivers/tty/serial/8250/8250.h               | 12 ++++
 drivers/tty/serial/8250/8250_accent.c        | 13 +---
 drivers/tty/serial/8250/8250_acorn.c         |  2 +-
 drivers/tty/serial/8250/8250_boca.c          | 41 ++++++-------
 drivers/tty/serial/8250/8250_core.c          | 15 ++---
 drivers/tty/serial/8250/8250_exar_st16c554.c | 17 ++----
 drivers/tty/serial/8250/8250_fourport.c      | 28 ++++-----
 drivers/tty/serial/8250/8250_gsc.c           |  7 ++-
 drivers/tty/serial/8250/8250_hp300.c         | 27 +++++----
 drivers/tty/serial/8250/8250_hub6.c          |  2 +-
 drivers/tty/serial/8250/8250_ingenic.c       | 12 ++--
 drivers/tty/serial/8250/8250_pci.c           | 60 ++++++++++---------
 drivers/tty/serial/8250/8250_pnp.c           | 28 +++++----
 drivers/tty/serial/8250/8250_port.c          | 47 ++++++++-------
 drivers/tty/serial/8250/serial_cs.c          | 90 +++++++++++++++-------------
 15 files changed, 203 insertions(+), 198 deletions(-)

-- 
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
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Subject: [PATCH v7 04/15] tty: serial: 8250: Fix multiline comment style
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	Joachim Eastwood <manabian@gmail.com>,
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	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
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	Phillip Raffeck <phillip.raffeck@fau.de>,
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Checkpatch outputs some warnings about incorrect comment style,
which is fixed by this patch.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_ingenic.c | 12 ++++++++----
 drivers/tty/serial/8250/8250_pnp.c     | 14 ++++++++------
 drivers/tty/serial/8250/8250_port.c    | 32 +++++++++++++++++---------=
------
 drivers/tty/serial/8250/serial_cs.c    | 26 +++++++++++++++++---------
 4 files changed, 50 insertions(+), 34 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_ingenic.c b/drivers/tty/seria=
l/8250/8250_ingenic.c
index 49394b4..4d9dc10 100644
--- a/drivers/tty/serial/8250/8250_ingenic.c
+++ b/drivers/tty/serial/8250/8250_ingenic.c
@@ -152,14 +152,18 @@ static void ingenic_uart_serial_out(struct uart_p=
ort *p, int offset, int value)
 		break;
=20
 	case UART_IER:
-		/* Enable receive timeout interrupt with the
-		 * receive line status interrupt */
+		/*
+		 * Enable receive timeout interrupt with the receive line
+		 * status interrupt.
+		 */
 		value |=3D (value & 0x4) << 2;
 		break;
=20
 	case UART_MCR:
-		/* If we have enabled modem status IRQs we should enable modem
-		 * mode. */
+		/*
+		 * If we have enabled modem status IRQs we should enable
+		 * modem mode.
+		 */
 		ier =3D p->serial_in(p, UART_IER);
=20
 		if (ier & UART_IER_MSI)
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 658b392..00846a7 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -357,8 +357,8 @@ static const struct pnp_device_id pnp_dev_table[] =3D=
 {
 	/* Fujitsu Wacom 1FGT Tablet PC device */
 	{	"FUJ02E9",		0	},
 	/*
-	 * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 in
-	 * disguise)
+	 * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6
+	 * in disguise).
 	 */
 	{	"LTS0001",		0       },
 	/* Rockwell's (PORALiNK) 33600 INT PNP */
@@ -367,12 +367,14 @@ static const struct pnp_device_id pnp_dev_table[]=
 =3D {
 	{	"PNPCXXX",		UNKNOWN_DEV	},
 	/* More unknown PnP modems */
 	{	"PNPDXXX",		UNKNOWN_DEV	},
-	/* Winbond CIR port, should not be probed. We should keep track
-	   of it to prevent the legacy serial driver from probing it */
+	/*
+	 * Winbond CIR port, should not be probed. We should keep track of
+	 * it to prevent the legacy serial driver from probing it.
+	 */
 	{	"WEC1022",		CIR_PORT	},
 	/*
-	 * SMSC IrCC SIR/FIR port, should not be probed by serial driver
-	 * as well so its own driver can bind to it.
+	 * SMSC IrCC SIR/FIR port, should not be probed by serial driver as
+	 * well so its own driver can bind to it.
 	 */
 	{	"SMCF010",		CIR_PORT	},
 	{	"",			0	}
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index f2e588e..5375c24 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -250,9 +250,11 @@ static const struct serial8250_config uart_config[=
] =3D {
 		.fcr		=3D UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
 		.flags		=3D UART_CAP_FIFO | UART_CAP_AFE,
 	},
-/* tx_loadsz is set to 63-bytes instead of 64-bytes to implement
-workaround of errata A-008006 which states that tx_loadsz should  be
-configured less than Maximum supported fifo bytes */
+	/*
+	 * tx_loadsz is set to 63-bytes instead of 64-bytes to implement
+	 * workaround of errata A-008006 which states that tx_loadsz should
+	 * be configured less than Maximum supported fifo bytes.
+	 */
 	[PORT_16550A_FSL64] =3D {
 		.name		=3D "16550A_FSL64",
 		.fifo_size	=3D 64,
@@ -1969,23 +1971,23 @@ int serial8250_do_startup(struct uart_port *por=
t)
=20
 	serial8250_set_mctrl(port, port->mctrl);
=20
-	/* Serial over Lan (SoL) hack:
-	   Intel 8257x Gigabit ethernet chips have a
-	   16550 emulation, to be used for Serial Over Lan.
-	   Those chips take a longer time than a normal
-	   serial device to signalize that a transmission
-	   data was queued. Due to that, the above test generally
-	   fails. One solution would be to delay the reading of
-	   iir. However, this is not reliable, since the timeout
-	   is variable. So, let's just don't test if we receive
-	   TX irq. This way, we'll never enable UART_BUG_TXEN.
+	/*
+	 * Serial over Lan (SoL) hack:
+	 * Intel 8257x Gigabit ethernet chips have a 16550 emulation, to be
+	 * used for Serial Over Lan.  Those chips take a longer time than a
+	 * normal serial device to signalize that a transmission data was
+	 * queued. Due to that, the above test generally fails. One solution
+	 * would be to delay the reading of iir. However, this is not
+	 * reliable, since the timeout is variable. So, let's just don't
+	 * test if we receive TX irq.  This way, we'll never enable
+	 * UART_BUG_TXEN.
 	 */
 	if (up->port.flags & UPF_NO_TXEN_TEST)
 		goto dont_test_tx_en;
=20
 	/*
-	 * Do a quick test to see if we receive an
-	 * interrupt when we enable the TX irq.
+	 * Do a quick test to see if we receive an interrupt when we enable
+	 * the TX irq.
 	 */
 	serial_port_out(port, UART_IER, UART_IER_THRI);
 	lsr =3D serial_port_in(port, UART_LSR);
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 6d7a801..2b7309d 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -441,16 +441,20 @@ static int simple_config(struct pcmcia_device *li=
nk)
 	struct serial_info *info =3D link->priv;
 	int i =3D -ENODEV, try;
=20
-	/* First pass: look for a config entry that looks normal.
-	 * Two tries: without IO aliases, then with aliases */
+	/*
+	 * First pass: look for a config entry that looks normal.
+	 * Two tries: without IO aliases, then with aliases.
+	 */
 	link->config_flags |=3D CONF_AUTO_SET_VPP;
 	for (try =3D 0; try < 4; try++)
 		if (!pcmcia_loop_config(link, simple_config_check, &try))
 			goto found_port;
=20
-	/* Second pass: try to find an entry that isn't picky about
-	   its base address, then try to grab any standard serial port
-	   address, and finally try to get any free port. */
+	/*
+	 * Second pass: try to find an entry that isn't picky about
+	 * its base address, then try to grab any standard serial port
+	 * address, and finally try to get any free port.
+	 */
 	if (!pcmcia_loop_config(link, simple_config_check_notpicky, NULL))
 		goto found_port;
=20
@@ -480,8 +484,10 @@ static int multi_config_check(struct pcmcia_device=
 *p_dev, void *priv_data)
 	if (p_dev->resource[1]->end)
 		return -EINVAL;
=20
-	/* The quad port cards have bad CIS's, so just look for a
-	   window larger than 8 ports and assume it will be right */
+	/*
+	 * The quad port cards have bad CIS's, so just look for a
+	 * window larger than 8 ports and assume it will be right.
+	 */
 	if (p_dev->resource[0]->end <=3D 8)
 		return -EINVAL;
=20
@@ -623,8 +629,10 @@ static int serial_config(struct pcmcia_device *lin=
k)
 			break;
 		}
=20
-	/* Another check for dual-serial cards: look for either serial or
-	   multifunction cards that ask for appropriate IO port ranges */
+	/*
+	 * Another check for dual-serial cards: look for either serial or
+	 * multifunction cards that ask for appropriate IO port ranges.
+	 */
 	if ((info->multi =3D=3D 0) &&
 	    (link->has_func_id) &&
 	    (link->socket->pcmcia_pfc =3D=3D 0) &&
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: [PATCH v7 15/15] tty: serial: 8250: Add generic port init macro
Date: Thu, 14 Jan 2016 16:08:24 +0100
Lines: 207
Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Xref: news.gmane.org gmane.linux.ports.parisc:26400 gmane.linux.serial:21570 gmane.linux.kernel:2126812
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26400>

This patch removes redundant 8250 port initialization macros and
replaces them by a single generic base-macro, which is specialized
as needed.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250.h               | 12 ++++++++
 drivers/tty/serial/8250/8250_accent.c        | 13 ++-------
 drivers/tty/serial/8250/8250_boca.c          | 41 ++++++++++++--------=
--------
 drivers/tty/serial/8250/8250_exar_st16c554.c | 17 ++++--------
 drivers/tty/serial/8250/8250_fourport.c      | 28 ++++++++-----------
 5 files changed, 49 insertions(+), 62 deletions(-)

diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8=
250.h
index d54dcd8..4672ab4 100644
--- a/drivers/tty/serial/8250/8250.h
+++ b/drivers/tty/serial/8250/8250.h
@@ -92,6 +92,18 @@ struct serial8250_config {
 #define SERIAL8250_SHARE_IRQS 0
 #endif
=20
+#define SERIAL8250_PORT_FLAGS(_base, _irq, _flags)		\
+	{							\
+		.iobase		=3D _base,			\
+		.irq		=3D _irq,				\
+		.uartclk	=3D 1843200,			\
+		.iotype		=3D UPIO_PORT,			\
+		.flags		=3D UPF_BOOT_AUTOCONF | (_flags),	\
+	}
+
+#define SERIAL8250_PORT(_base, _irq) SERIAL8250_PORT_FLAGS(_base, _irq=
, 0)
+
+
 static inline int serial_in(struct uart_8250_port *up, int offset)
 {
 	return up->port.serial_in(&up->port, offset);
diff --git a/drivers/tty/serial/8250/8250_accent.c b/drivers/tty/serial=
/8250/8250_accent.c
index 34b51c6..522aeae 100644
--- a/drivers/tty/serial/8250/8250_accent.c
+++ b/drivers/tty/serial/8250/8250_accent.c
@@ -10,18 +10,11 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
-	{						\
-		.iobase		=3D _base,		\
-		.irq		=3D _irq,			\
-		.uartclk	=3D 1843200,		\
-		.iotype		=3D UPIO_PORT,		\
-		.flags		=3D UPF_BOOT_AUTOCONF,	\
-	}
+#include "8250.h"
=20
 static struct plat_serial8250_port accent_data[] =3D {
-	PORT(0x330, 4),
-	PORT(0x338, 4),
+	SERIAL8250_PORT(0x330, 4),
+	SERIAL8250_PORT(0x338, 4),
 	{ },
 };
=20
diff --git a/drivers/tty/serial/8250/8250_boca.c b/drivers/tty/serial/8=
250/8250_boca.c
index d125dc1..a63b599 100644
--- a/drivers/tty/serial/8250/8250_boca.c
+++ b/drivers/tty/serial/8250/8250_boca.c
@@ -10,32 +10,25 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
-	{						\
-		.iobase		=3D _base,		\
-		.irq		=3D _irq,			\
-		.uartclk	=3D 1843200,		\
-		.iotype		=3D UPIO_PORT,		\
-		.flags		=3D UPF_BOOT_AUTOCONF,	\
-	}
+#include "8250.h"
=20
 static struct plat_serial8250_port boca_data[] =3D {
-	PORT(0x100, 12),
-	PORT(0x108, 12),
-	PORT(0x110, 12),
-	PORT(0x118, 12),
-	PORT(0x120, 12),
-	PORT(0x128, 12),
-	PORT(0x130, 12),
-	PORT(0x138, 12),
-	PORT(0x140, 12),
-	PORT(0x148, 12),
-	PORT(0x150, 12),
-	PORT(0x158, 12),
-	PORT(0x160, 12),
-	PORT(0x168, 12),
-	PORT(0x170, 12),
-	PORT(0x178, 12),
+	SERIAL8250_PORT(0x100, 12),
+	SERIAL8250_PORT(0x108, 12),
+	SERIAL8250_PORT(0x110, 12),
+	SERIAL8250_PORT(0x118, 12),
+	SERIAL8250_PORT(0x120, 12),
+	SERIAL8250_PORT(0x128, 12),
+	SERIAL8250_PORT(0x130, 12),
+	SERIAL8250_PORT(0x138, 12),
+	SERIAL8250_PORT(0x140, 12),
+	SERIAL8250_PORT(0x148, 12),
+	SERIAL8250_PORT(0x150, 12),
+	SERIAL8250_PORT(0x158, 12),
+	SERIAL8250_PORT(0x160, 12),
+	SERIAL8250_PORT(0x168, 12),
+	SERIAL8250_PORT(0x170, 12),
+	SERIAL8250_PORT(0x178, 12),
 	{ },
 };
=20
diff --git a/drivers/tty/serial/8250/8250_exar_st16c554.c b/drivers/tty=
/serial/8250/8250_exar_st16c554.c
index bf53aab..3a7cb82 100644
--- a/drivers/tty/serial/8250/8250_exar_st16c554.c
+++ b/drivers/tty/serial/8250/8250_exar_st16c554.c
@@ -13,20 +13,13 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)				\
-	{						\
-		.iobase		=3D _base,		\
-		.irq		=3D _irq,			\
-		.uartclk	=3D 1843200,		\
-		.iotype		=3D UPIO_PORT,		\
-		.flags		=3D UPF_BOOT_AUTOCONF,	\
-	}
+#include "8250.h"
=20
 static struct plat_serial8250_port exar_data[] =3D {
-	PORT(0x100, 5),
-	PORT(0x108, 5),
-	PORT(0x110, 5),
-	PORT(0x118, 5),
+	SERIAL8250_PORT(0x100, 5),
+	SERIAL8250_PORT(0x108, 5),
+	SERIAL8250_PORT(0x110, 5),
+	SERIAL8250_PORT(0x118, 5),
 	{ },
 };
=20
diff --git a/drivers/tty/serial/8250/8250_fourport.c b/drivers/tty/seri=
al/8250/8250_fourport.c
index be15826..4045180 100644
--- a/drivers/tty/serial/8250/8250_fourport.c
+++ b/drivers/tty/serial/8250/8250_fourport.c
@@ -10,24 +10,20 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define PORT(_base,_irq)						\
-	{								\
-		.iobase		=3D _base,				\
-		.irq		=3D _irq,					\
-		.uartclk	=3D 1843200,				\
-		.iotype		=3D UPIO_PORT,				\
-		.flags		=3D UPF_BOOT_AUTOCONF | UPF_FOURPORT,	\
-	}
+#include "8250.h"
+
+#define SERIAL8250_FOURPORT(_base, _irq) \
+	SERIAL8250_PORT_FLAGS(_base, _irq, UPF_FOURPORT)
=20
 static struct plat_serial8250_port fourport_data[] =3D {
-	PORT(0x1a0, 9),
-	PORT(0x1a8, 9),
-	PORT(0x1b0, 9),
-	PORT(0x1b8, 9),
-	PORT(0x2a0, 5),
-	PORT(0x2a8, 5),
-	PORT(0x2b0, 5),
-	PORT(0x2b8, 5),
+	SERIAL8250_FOURPORT(0x1a0, 9),
+	SERIAL8250_FOURPORT(0x1a8, 9),
+	SERIAL8250_FOURPORT(0x1b0, 9),
+	SERIAL8250_FOURPORT(0x1b8, 9),
+	SERIAL8250_FOURPORT(0x2a0, 5),
+	SERIAL8250_FOURPORT(0x2a8, 5),
+	SERIAL8250_FOURPORT(0x2b0, 5),
+	SERIAL8250_FOURPORT(0x2b8, 5),
 	{ },
 };
=20
--=20
1.9.1

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From - Thu Nov 08 21:38:24 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 14/15] tty: serial: 8250: Fix indentation warnings
Date: Thu, 14 Jan 2016 16:08:23 +0100
Lines: 86
Approved: news@gmane.org
Message-ID: <1452784104-30840-15-git-send-email-anton.wuerfel@fau.de>
References: <1452784104-30840-1-git-send-email-anton.wuerfel@fau.de>
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Xref: news.gmane.org gmane.linux.kernel:2126813 gmane.linux.serial:21571 gmane.linux.ports.parisc:26401
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2126813>

Checkpatch complains about incorrect indentation of switch/case stateme=
nts.
This patch fixes the corresponding warnings. Additionally some indentat=
ion
is changed to match the correct format specified in the Linux Kernel
Coding Style.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c  | 16 ++++++++--------
 drivers/tty/serial/8250/8250_pnp.c  |  4 ++--
 drivers/tty/serial/8250/8250_port.c |  6 +++---
 3 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index b22e5a5..40aa5e7 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -842,15 +842,15 @@ static int pci_netmos_init(struct pci_dev *dev)
 		return 0;
=20
 	switch (dev->device) { /* FALLTHROUGH on all */
-		case PCI_DEVICE_ID_NETMOS_9904:
-		case PCI_DEVICE_ID_NETMOS_9912:
-		case PCI_DEVICE_ID_NETMOS_9922:
-		case PCI_DEVICE_ID_NETMOS_9900:
-			num_serial =3D pci_netmos_9900_numports(dev);
-			break;
+	case PCI_DEVICE_ID_NETMOS_9904:
+	case PCI_DEVICE_ID_NETMOS_9912:
+	case PCI_DEVICE_ID_NETMOS_9922:
+	case PCI_DEVICE_ID_NETMOS_9900:
+		num_serial =3D pci_netmos_9900_numports(dev);
+		break;
=20
-		default:
-			break;
+	default:
+		break;
 	}
=20
 	if (num_serial =3D=3D 0) {
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index b2d163c..2c757b0 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -427,8 +427,8 @@ static int check_resources(struct pnp_dev *dev)
 static int serial_pnp_guess_board(struct pnp_dev *dev)
 {
 	if (!(check_name(pnp_dev_name(dev)) ||
-		(dev->card && check_name(dev->card->name))))
-			return -ENODEV;
+	    (dev->card && check_name(dev->card->name))))
+		return -ENODEV;
=20
 	if (check_resources(dev))
 		return 0;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 25fd6b4..9fe814f 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2236,9 +2236,9 @@ static void serial8250_set_divisor(struct uart_po=
rt *port, unsigned int baud,
 		serial_port_out(port, 0x2, quot_frac);
 }
=20
-static unsigned int
-serial8250_get_baud_rate(struct uart_port *port, struct ktermios *term=
ios,
-			 struct ktermios *old)
+static unsigned int serial8250_get_baud_rate(struct uart_port *port,
+					     struct ktermios *termios,
+					     struct ktermios *old)
 {
 	unsigned int tolerance =3D port->uartclk / 100;
=20
--=20
1.9.1



From - Thu Nov 08 21:38:24 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 07/15] tty: serial: 8250: Fix line continuation warning
Date: Thu, 14 Jan 2016 16:08:16 +0100
Lines: 32
Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46ixed checkpatch warning about an unnecessary line continuation in a
multi-line variable assignment.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 5e1b464..cf566bb 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -248,8 +248,8 @@ static int __init hp300_8250_init(void)
=20
 		/* Memory mapped I/O */
 		uart.port.iotype =3D UPIO_MEM;
-		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ \
-			      | UPF_BOOT_AUTOCONF;
+		uart.port.flags =3D UPF_SKIP_TEST | UPF_SHARE_IRQ
+				| UPF_BOOT_AUTOCONF;
 		/* XXX - no interrupt support yet */
 		uart.port.irq =3D 0;
 		uart.port.uartclk =3D HPAPCI_BAUD_BASE * 16;
--=20
1.9.1



From - Thu Nov 08 21:38:24 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 13/15] tty: serial: 8250: Merge duplicate conditions
Date: Thu, 14 Jan 2016 16:08:22 +0100
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	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch refactors a switch case statement by merging an if condition
in the default case into an identical condition right after the switch
statement.
This comes with a slight change in behaviour: If pci_netmos_9900_numpor=
ts
returns 0, an additional warning is printed.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index fbd4222..b22e5a5 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -850,13 +850,13 @@ static int pci_netmos_init(struct pci_dev *dev)
 			break;
=20
 		default:
-			if (num_serial =3D=3D 0 ) {
-				moan_device("unknown NetMos/Mostech device", dev);
-			}
+			break;
 	}
=20
-	if (num_serial =3D=3D 0)
+	if (num_serial =3D=3D 0) {
+		moan_device("unknown NetMos/Mostech device", dev);
 		return -ENODEV;
+	}
=20
 	return num_serial;
 }
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 05/15] tty: serial: 8250: Remove else after return
Date: Thu, 14 Jan 2016 16:08:14 +0100
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes checkpatch warnings about unnecessary else blocks afte=
r
return statements.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 534ca18..8543719 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -805,10 +805,10 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
=20
 	pi =3D (c & 0xff);
=20
-	if (pi =3D=3D 2) {
+	if (pi =3D=3D 2)
 		return 1;
-	} else if ((pi =3D=3D 0) &&
-			   (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) {
+
+	if ((pi =3D=3D 0) && (dev->device =3D=3D PCI_DEVICE_ID_NETMOS_9900)) =
{
 		/* two possibilities: 0x30ps encodes number of parallel and
 		 * serial ports, or 0x1000 indicates *something*. This is not
 		 * immediately obvious, since the 2s1p+4s configuration seems
@@ -816,12 +816,12 @@ static int pci_netmos_9900_numports(struct pci_de=
v *dev)
 		 * advertising the same function 3 as the 4s+2s1p config.
 		 */
 		sub_serports =3D dev->subsystem_device & 0xf;
-		if (sub_serports > 0) {
+		if (sub_serports > 0)
 			return sub_serports;
-		} else {
-			dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on a=
mbiguous config.\n");
-			return 0;
-		}
+
+		dev_err(&dev->dev,
+			"NetMos/Mostech serial driver ignoring port on ambiguous config.\n"=
);
+		return 0;
 	}
=20
 	moan_device("unknown NetMos/Mostech program interface", dev);
--=20
1.9.1



From - Thu Nov 08 21:38:24 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 12/15] tty: serial: 8250: Correct conversion specifiers
Date: Thu, 14 Jan 2016 16:08:21 +0100
Lines: 54
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes compiler warnings about wrong conversion specifiers us=
ed
in a debug output in 8250_pnp.c. The precise warning is:

drivers/tty/serial/8250/8250_pnp.c: In function =E2=80=98serial_pnp_pro=
be=E2=80=99:
include/linux/dynamic_debug.h:64:16: warning: format =E2=80=98%x=E2=80=99=
 expects argument
of [...]

drivers/tty/serial/8250/8250_pnp.c:467:2: note: in expansion of macro
=E2=80=98dev_dbg=E2=80=99
  dev_dbg(&dev->dev,
  ^
include/linux/dynamic_debug.h:64:16: warning: format =E2=80=98%lx=E2=80=
=99 expects argument
of [...]

drivers/tty/serial/8250/8250_pnp.c:467:2: note: in expansion of macro
=E2=80=98dev_dbg=E2=80=99
  dev_dbg(&dev->dev,
  ^

Those warnings never got triggered, because the command was nested
in an #ifdef, which is removed by a patch of this series.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pnp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 0c32c59..b2d163c 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -465,8 +465,8 @@ serial_pnp_probe(struct pnp_dev *dev, const struct =
pnp_device_id *dev_id)
 		return -ENODEV;
=20
 	dev_dbg(&dev->dev,
-		 "Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
-		 uart.port.iobase, uart.port.mapbase,
+		 "Setup PNP port: port %lx, mem %pa, irq %d, type %d\n",
+		 uart.port.iobase, &uart.port.mapbase,
 		 uart.port.irq, uart.port.iotype);
=20
 	if (flags & CIR_PORT) {
--=20
1.9.1



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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 11/15] tty: serial: 8250: Remove SERIAL_DEBUG_PNP macro
Date: Thu, 14 Jan 2016 16:08:20 +0100
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	Helge Deller <deller@gmx.de>,
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	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de,
	=?UTF-8?q?Anton=20W=C3=BCrfel?= <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46rom: Phillip Raffeck <phillip.raffeck@fau.de>

This patch removes the macro SERIAL_DEBUG_PNP, which is used to enable
debugging at compile time.
As SERIAL_DEBUG_PNP is an orphan, the corresponding #ifdef is removed.
To keep the ability to enable debugging at compile time,
the call to printk(KERN_DEBUG ...) is replaced by a corresponding
call to dev_dbg(), which is configurable via CONFIG_DYNAMIC_DEBUG.

Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pnp.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/82=
50/8250_pnp.c
index 00846a7..0c32c59 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -464,11 +464,11 @@ serial_pnp_probe(struct pnp_dev *dev, const struc=
t pnp_device_id *dev_id)
 	} else
 		return -ENODEV;
=20
-#ifdef SERIAL_DEBUG_PNP
-	printk(KERN_DEBUG
-		"Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
-		       uart.port.iobase, uart.port.mapbase, uart.port.irq, uart.port=
=2Eiotype);
-#endif
+	dev_dbg(&dev->dev,
+		 "Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
+		 uart.port.iobase, uart.port.mapbase,
+		 uart.port.irq, uart.port.iotype);
+
 	if (flags & CIR_PORT) {
 		uart.port.flags |=3D UPF_FIXED_PORT | UPF_FIXED_TYPE;
 		uart.port.type =3D PORT_8250_CIR;
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 06/15] tty: serial: 8250: Move EXPORT_SYMBOL to function
Date: Thu, 14 Jan 2016 16:08:15 +0100
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	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch moves EXPORT_SYMBOL macros directly after the definition of
the corresponding symbol to remove checkpatch warnings.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 3912646..15082ae 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -763,6 +763,7 @@ void serial8250_suspend_port(int line)
=20
 	uart_suspend_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_suspend_port);
=20
 /**
  *	serial8250_resume_port - resume one serial port
@@ -788,6 +789,7 @@ void serial8250_resume_port(int line)
 	}
 	uart_resume_port(&serial8250_reg, port);
 }
+EXPORT_SYMBOL(serial8250_resume_port);
=20
 /*
  * Register a set of serial devices attached to a platform device.  Th=
e
@@ -1167,9 +1169,6 @@ static void __exit serial8250_exit(void)
 module_init(serial8250_init);
 module_exit(serial8250_exit);
=20
-EXPORT_SYMBOL(serial8250_suspend_port);
-EXPORT_SYMBOL(serial8250_resume_port);
-
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
--=20
1.9.1



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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 10/15] tty: serial: 8250: Suitably replace printk
Date: Thu, 14 Jan 2016 16:08:19 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de,
	=?UTF-8?q?Anton=20W=C3=BCrfel?= <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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=46rom: Phillip Raffeck <phillip.raffeck@fau.de>

This patch replaces printk by the corresponding variant of dev_* in ord=
er
to fix checkpatch warnings. If no suitable device pointer is present, t=
he
corresponding pr_* variant is used.

Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c  |  5 ++---
 drivers/tty/serial/8250/8250_gsc.c   |  7 ++++---
 drivers/tty/serial/8250/8250_hp300.c | 20 +++++++++++---------
 drivers/tty/serial/8250/8250_port.c  |  3 +--
 4 files changed, 18 insertions(+), 17 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index b60b58b..d6b4906 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1094,9 +1094,8 @@ static int __init serial8250_init(void)
=20
 	serial8250_isa_init_ports();
=20
-	printk(KERN_INFO "Serial: 8250/16550 driver, "
-		"%d ports, IRQ sharing %sabled\n", nr_uarts,
-		share_irqs ? "en" : "dis");
+	pr_info("Serial: 8250/16550 driver, %d ports, IRQ sharing %sabled\n",
+		nr_uarts, share_irqs ? "en" : "dis");
=20
 #ifdef CONFIG_SPARC
 	ret =3D sunserial_register_minors(&serial8250_reg, UART_NR);
diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/82=
50/8250_gsc.c
index 2e3ea1a..b1e6ae9 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -42,7 +42,7 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
 		 * the user what they're missing.
 		 */
 		if (parisc_parent(dev)->id.hw_type !=3D HPHW_IOA)
-			printk(KERN_INFO
+			dev_info(&dev->dev,
 				"Serial: device 0x%llx not configured.\n"
 				"Enable support for Wax, Lasi, Asp or Dino.\n",
 				(unsigned long long)dev->hpa.start);
@@ -66,8 +66,9 @@ static int __init serial_init_chip(struct parisc_devi=
ce *dev)
=20
 	err =3D serial8250_register_8250_port(&uart);
 	if (err < 0) {
-		printk(KERN_WARNING
-			"serial8250_register_8250_port returned error %d\n", err);
+		dev_warn(&dev->dev,
+			"serial8250_register_8250_port returned error %d\n",
+			err);
 		iounmap(uart.port.membase);
 		return err;
 	}
diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index cf566bb..38166db 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -110,7 +110,7 @@ int __init hp300_setup_serial_console(void)
 	/* Check for APCI console */
 	if (scode =3D=3D 256) {
 #ifdef CONFIG_HPAPCI
-		printk(KERN_INFO "Serial console is HP APCI 1\n");
+		pr_info("Serial console is HP APCI 1\n");
=20
 		port.uartclk =3D HPAPCI_BAUD_BASE * 16;
 		port.mapbase =3D (FRODO_BASE + FRODO_APCI_OFFSET(1));
@@ -118,7 +118,7 @@ int __init hp300_setup_serial_console(void)
 		port.regshift =3D 2;
 		add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is APCI but support is disabled =
(CONFIG_HPAPCI)!\n");
+		pr_warn("Serial console is APCI but support is disabled (CONFIG_HPAP=
CI)!\n");
 		return 0;
 #endif
 	} else {
@@ -127,7 +127,7 @@ int __init hp300_setup_serial_console(void)
 		if (!pa)
 			return 0;
=20
-		printk(KERN_INFO "Serial console is HP DCA at select code %d\n", sco=
de);
+		pr_info("Serial console is HP DCA at select code %d\n", scode);
=20
 		port.uartclk =3D HPDCA_BAUD_BASE * 16;
 		port.mapbase =3D (pa + UART_OFFSET);
@@ -141,13 +141,13 @@ int __init hp300_setup_serial_console(void)
 		if (DIO_ID(pa + DIO_VIRADDRBASE) & 0x80)
 			add_preferred_console("ttyS", port.line, "9600n8");
 #else
-		printk(KERN_WARNING "Serial console is DCA but support is disabled (=
CONFIG_HPDCA)!\n");
+		pr_warn("Serial console is DCA but support is disabled (CONFIG_HPDCA=
)!\n");
 		return 0;
 #endif
 	}
=20
 	if (early_serial_setup(&port) < 0)
-		printk(KERN_WARNING "hp300_setup_serial_console(): early_serial_setu=
p() failed.\n");
+		pr_warn("%s: early_serial_setup() failed.\n", __func__);
 	return 0;
 }
 #endif /* CONFIG_SERIAL_8250_CONSOLE */
@@ -179,8 +179,9 @@ static int hpdca_init_one(struct dio_dev *d,
 	line =3D serial8250_register_8250_port(&uart);
=20
 	if (line < 0) {
-		printk(KERN_NOTICE "8250_hp300: register_serial() DCA scode %d"
-		       " irq %d failed\n", d->scode, uart.port.irq);
+		dev_notice(&d->dev,
+			  "8250_hp300: register_serial() DCA scode %d irq %d failed\n",
+			  d->scode, uart.port.irq);
 		return -ENOMEM;
 	}
=20
@@ -260,8 +261,9 @@ static int __init hp300_8250_init(void)
 		line =3D serial8250_register_8250_port(&uart);
=20
 		if (line < 0) {
-			printk(KERN_NOTICE "8250_hp300: register_serial() APCI"
-			       " %d irq %d failed\n", i, uart.port.irq);
+			dev_notice(uart.port.dev,
+				   "8250_hp300: register_serial() APCI %d irq %d failed\n",
+				   i, uart.port.irq);
 			kfree(port);
 			continue;
 		}
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 5375c24..25fd6b4 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1222,8 +1222,7 @@ static void autoconfig(struct uart_8250_port *up)
 out_lock:
 	spin_unlock_irqrestore(&port->lock, flags);
 	if (up->capabilities !=3D old_capabilities) {
-		printk(KERN_WARNING
-		       "ttyS%d: detected caps %08x should be %08x\n",
+		pr_warn("ttyS%d: detected caps %08x should be %08x\n",
 		       serial_index(port), old_capabilities,
 		       up->capabilities);
 	}
--=20
1.9.1



From - Thu Nov 08 21:38:25 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 09/15] tty: serial: 8250: Fix multi-line strings
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merged user-visible multi-line strings into a single line according to =
the
Linux Kernel Coding Style, which allows user-visible strings to exceed =
the
maximum line length of 80 characters. The main reason for this is to
facilitate grepping for these strings.
However, some strings were ignored in this patch, because the use of
format specifiers breaks the ability to grep anyway.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 3 +--
 drivers/tty/serial/8250/serial_cs.c | 4 ++--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index d042ad5..b60b58b 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1173,8 +1173,7 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
=20
 module_param(share_irqs, uint, 0644);
-MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices"
-	" (unsafe)");
+MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 dev=
ices (unsafe)");
=20
 module_param(nr_uarts, uint, 0644);
 MODULE_PARM_DESC(nr_uarts, "Maximum number of UARTs supported. (1-" __=
MODULE_STRING(CONFIG_SERIAL_8250_NR_UARTS) ")");
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 2b7309d..933c268 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -533,8 +533,8 @@ static int multi_config(struct pcmcia_device *link)
 		info->multi =3D 2;
 		if (pcmcia_loop_config(link, multi_config_check_notpicky,
 				       &base2)) {
-			dev_warn(&link->dev, "no usable port range "
-			       "found, giving up\n");
+			dev_warn(&link->dev,
+				 "no usable port range found, giving up\n");
 			return -ENODEV;
 		}
 	}
--=20
1.9.1



From - Thu Nov 08 21:38:25 2018
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 08/15] tty: serial: 8250: Add parentheses to macro
Date: Thu, 14 Jan 2016 16:08:17 +0100
Lines: 46
Approved: news@gmane.org
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Cc: Jiri Slaby <jslaby@suse.com>,
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	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
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	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes a checkpatch warning caused by missing parentheses
in the definition of a macro.
=46urthermore redundant parentheses are removed in an assignment.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_core.c | 2 +-
 drivers/tty/serial/8250/8250_pci.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8=
250/8250_core.c
index 15082ae..d042ad5 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -686,7 +686,7 @@ static int __init univ8250_console_init(void)
 }
 console_initcall(univ8250_console_init);
=20
-#define SERIAL8250_CONSOLE	&univ8250_console
+#define SERIAL8250_CONSOLE	(&univ8250_console)
 #else
 #define SERIAL8250_CONSOLE	NULL
 #endif
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 8543719..fbd4222 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -803,7 +803,7 @@ static int pci_netmos_9900_numports(struct pci_dev =
*dev)
 	unsigned int pi;
 	unsigned short sub_serports;
=20
-	pi =3D (c & 0xff);
+	pi =3D c & 0xff;
=20
 	if (pi =3D=3D 2)
 		return 1;
--=20
1.9.1



From - Thu Nov 08 21:38:25 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 03/15] tty: serial: 8250: Fix braces after struct
Date: Thu, 14 Jan 2016 16:08:12 +0100
Lines: 31
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes a checkpatch warning by moving an opening curly brace
to its correct position.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_hp300.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/=
8250/8250_hp300.c
index 2891958..5e1b464 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -24,8 +24,7 @@
 #endif
=20
 #ifdef CONFIG_HPAPCI
-struct hp300_port
-{
+struct hp300_port {
 	struct hp300_port *next;	/* next port */
 	int line;			/* line (tty) number */
 };
--=20
1.9.1



From - Thu Nov 08 21:38:25 2018
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X-Mozilla-Keys:                                                                                 
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From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 02/15] tty: serial: 8250: Replace spaces with tabs
Date: Thu, 14 Jan 2016 16:08:11 +0100
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Indentation is changed to match the correct format of using tabs instea=
d
of spaces wherever possible.

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_pci.c  | 12 ++++++------
 drivers/tty/serial/8250/8250_port.c |  4 ++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index ecd5a32..534ca18 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -721,7 +721,7 @@ static int pci_ni8430_init(struct pci_dev *dev)
 	 */
 	pcibios_resource_to_bus(dev->bus, &region, &dev->resource[bar]);
 	device_window =3D ((region.start + MITE_IOWBSR1_WIN_OFFSET) & 0xfffff=
f00)
-	                | MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
+			| MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
 	writel(device_window, p + MITE_IOWBSR1);
=20
 	/* Set window access to go to RAMSEL IO address space */
@@ -1763,7 +1763,7 @@ xr17v35x_has_slave(struct serial_private *priv)
 	const int dev_id =3D priv->dev->device;
=20
 	return ((dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V4358) ||
-	        (dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
+		(dev_id =3D=3D PCI_DEVICE_ID_EXAR_XR17V8358));
 }
=20
 static int
@@ -1863,8 +1863,8 @@ pci_fastcom335_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch353_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16550A;
@@ -1873,8 +1873,8 @@ pci_wch_ch353_setup(struct serial_private *priv,
=20
 static int
 pci_wch_ch38x_setup(struct serial_private *priv,
-                    const struct pciserial_board *board,
-                    struct uart_8250_port *port, int idx)
+		    const struct pciserial_board *board,
+		    struct uart_8250_port *port, int idx)
 {
 	port->port.flags |=3D UPF_FIXED_TYPE;
 	port->port.type =3D PORT_16850;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 7f3bd7b..f2e588e 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -52,7 +52,7 @@
 #define DEBUG_AUTOCONF(fmt...)	do { } while (0)
 #endif
=20
-#define BOTH_EMPTY 	(UART_LSR_TEMT | UART_LSR_THRE)
+#define BOTH_EMPTY	(UART_LSR_TEMT | UART_LSR_THRE)
=20
 /*
  * Here we define the default xmit fifo size used for each type of UAR=
T.
@@ -2254,7 +2254,7 @@ serial8250_get_baud_rate(struct uart_port *port, =
struct ktermios *termios,
=20
 void
 serial8250_do_set_termios(struct uart_port *port, struct ktermios *ter=
mios,
-		          struct ktermios *old)
+			  struct ktermios *old)
 {
 	struct uart_8250_port *up =3D up_to_u8250p(port);
 	unsigned char cval;
--=20
1.9.1



From - Thu Nov 08 21:38:25 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Anton Wuerfel <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH v7 01/15] tty: serial: 8250: Fix whitespace errors
Date: Thu, 14 Jan 2016 16:08:10 +0100
Lines: 291
Approved: news@gmane.org
Message-ID: <1452784104-30840-2-git-send-email-anton.wuerfel@fau.de>
References: <1452784104-30840-1-git-send-email-anton.wuerfel@fau.de>
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Cc: Jiri Slaby <jslaby@suse.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Joachim Eastwood <manabian@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phillip Raffeck <phillip.raffeck@fau.de>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Peter Hung <hpeter@gmail.com>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-kernel@i4.cs.fau.de, Anton Wuerfel <anton.wuerfel@fau.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Xref: news.gmane.org gmane.linux.kernel:2126825 gmane.linux.serial:21583 gmane.linux.ports.parisc:26413
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2126825>

This patch fixes whitespace errors reported by checkpatch to increase
readability. Main focus is on missing spaces after commas in
function headers and macros (like foo,bar edited to foo, bar).

Signed-off-by: Anton W=C3=BCrfel <anton.wuerfel@fau.de>
Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@i4.cs.fau.de
---
 drivers/tty/serial/8250/8250_acorn.c |  2 +-
 drivers/tty/serial/8250/8250_hub6.c  |  2 +-
 drivers/tty/serial/8250/8250_pci.c   |  8 +++--
 drivers/tty/serial/8250/8250_port.c  |  2 ++
 drivers/tty/serial/8250/serial_cs.c  | 60 ++++++++++++++++++----------=
--------
 5 files changed, 39 insertions(+), 35 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_acorn.c b/drivers/tty/serial/=
8250/8250_acorn.c
index 549aa07..402dfdd 100644
--- a/drivers/tty/serial/8250/8250_acorn.c
+++ b/drivers/tty/serial/8250/8250_acorn.c
@@ -70,7 +70,7 @@ serial_card_probe(struct expansion_card *ec, const st=
ruct ecard_id *id)
 	uart.port.regshift	=3D 2;
 	uart.port.dev	=3D &ec->dev;
=20
-	for (i =3D 0; i < info->num_ports; i ++) {
+	for (i =3D 0; i < info->num_ports; i++) {
 		uart.port.membase =3D info->vaddr + type->offset[i];
 		uart.port.mapbase =3D bus_addr + type->offset[i];
=20
diff --git a/drivers/tty/serial/8250/8250_hub6.c b/drivers/tty/serial/8=
250/8250_hub6.c
index a5c778e..27124e2 100644
--- a/drivers/tty/serial/8250/8250_hub6.c
+++ b/drivers/tty/serial/8250/8250_hub6.c
@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/serial_8250.h>
=20
-#define HUB6(card,port)							\
+#define HUB6(card, port)						\
 	{								\
 		.iobase		=3D 0x302,				\
 		.irq		=3D 3,					\
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/82=
50/8250_pci.c
index 4097f3f..ecd5a32 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1198,8 +1198,9 @@ static int pci_quatech_has_qmcr(struct uart_8250_=
port *port)
=20
 static int pci_quatech_test(struct uart_8250_port *port)
 {
-	u8 reg;
-	u8 qopr =3D pci_quatech_rqopr(port);
+	u8 reg, qopr;
+
+	qopr =3D pci_quatech_rqopr(port);
 	pci_quatech_wqopr(port, qopr & QPCR_TEST_FOR1);
 	reg =3D pci_quatech_rqopr(port) & 0xC0;
 	if (reg !=3D QPCR_TEST_GET1)
@@ -1286,6 +1287,7 @@ static int pci_quatech_init(struct pci_dev *dev)
 		unsigned long base =3D pci_resource_start(dev, 0);
 		if (base) {
 			u32 tmp;
+
 			outl(inl(base + 0x38) | 0x00002000, base + 0x38);
 			tmp =3D inl(base + 0x3c);
 			outl(tmp | 0x01000000, base + 0x3c);
@@ -4502,7 +4504,7 @@ static struct pci_device_id serial_pci_tbl[] =3D =
{
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b0_bt_2_921600 },
 	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI958,
-		PCI_ANY_ID , PCI_ANY_ID, 0, 0,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b2_8_1152000 },
=20
 	/*
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8=
250/8250_port.c
index 52d82d2..7f3bd7b 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1327,6 +1327,7 @@ static void serial8250_start_tx(struct uart_port =
*port)
=20
 		if (up->bugs & UART_BUG_TXEN) {
 			unsigned char lsr;
+
 			lsr =3D serial_in(up, UART_LSR);
 			up->lsr_saved_flags |=3D lsr & LSR_SAVE_FLAGS;
 			if (lsr & UART_LSR_THRE)
@@ -1734,6 +1735,7 @@ static void wait_for_xmitr(struct uart_8250_port =
*up, int bits)
 	/* Wait up to 1s for flow control if necessary */
 	if (up->port.flags & UPF_CONS_FLOW) {
 		unsigned int tmout;
+
 		for (tmout =3D 1000000; tmout; tmout--) {
 			unsigned int msr =3D serial_in(up, UART_MSR);
 			up->msr_saved_flags |=3D msr & MSR_SAVE_FLAGS;
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8=
250/serial_cs.c
index 4d180c9..6d7a801 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -28,7 +28,7 @@
     and other provisions required by the GPL.  If you do not delete
     the provisions above, a recipient may use your version of this
     file under either the MPL or the GPL.
-   =20
+
 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
=20
 #include <linux/module.h>
@@ -257,7 +257,7 @@ static const struct serial_quirk quirks[] =3D {
 };
=20
=20
-static int serial_config(struct pcmcia_device * link);
+static int serial_config(struct pcmcia_device *link);
=20
=20
 static void serial_remove(struct pcmcia_device *link)
@@ -309,7 +309,7 @@ static int serial_probe(struct pcmcia_device *link)
 	dev_dbg(&link->dev, "serial_attach()\n");
=20
 	/* Create new serial device */
-	info =3D kzalloc(sizeof (*info), GFP_KERNEL);
+	info =3D kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 	info->p_dev =3D link;
@@ -339,7 +339,7 @@ static void serial_detach(struct pcmcia_device *lin=
k)
=20
 /*=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D*/
=20
-static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo * info,
+static int setup_serial(struct pcmcia_device *handle, struct serial_in=
fo *info,
 			unsigned int iobase, int irq)
 {
 	struct uart_8250_port uart;
@@ -600,7 +600,7 @@ static int serial_check_for_multi(struct pcmcia_dev=
ice *p_dev,  void *priv_data)
 }
=20
=20
-static int serial_config(struct pcmcia_device * link)
+static int serial_config(struct pcmcia_device *link)
 {
 	struct serial_info *info =3D link->priv;
 	int i;
@@ -701,7 +701,7 @@ static const struct pcmcia_device_id serial_ids[] =3D=
 {
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "LINKSYS", "PCMLM336", 0xf7cb0b07, 0x7=
a821b58),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf5=
10db04, 0x52d21e1e),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MICRO RESEARCH", "COMBO-L/M-336", 0xb=
2ced065, 0x3ced0555),
-	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001" ,0x18df0ba0 ,0x831=
b1064),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001", 0x18df0ba0, 0x831=
b1064),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Diamonds=
 Modem+Ethernet", 0xc2f80cd, 0x656947b9),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Hearts M=
odem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
 	PCMCIA_PFC_DEVICE_PROD_ID12(1, "PCMCIAs", "ComboCard", 0xdcfe12d3, 0x=
cd8906cc),
@@ -797,30 +797,30 @@ static const struct pcmcia_device_id serial_ids[]=
 =3D {
 	PCMCIA_DEVICE_CIS_PROD_ID123("ADVANTECH", "COMpad-32/85", "1.0", 0x96=
913a85, 0x8fbe92ae, 0x0877b627, "cis/COMpad2.cis"),
 	PCMCIA_DEVICE_CIS_PROD_ID2("RS-COM 2P", 0xad20b156, "cis/RS-COM-2P.ci=
s"),
 	PCMCIA_DEVICE_CIS_MANF_CARD(0x0013, 0x0000, "cis/GLOBETROTTER.cis"),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100  1.00.",0x19ca78af,0xf964f42b),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL100",0x19ca78af,0x71d98e83),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232  1.00.",0x19ca78af,0x69fb7490),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CA=
RD: SL232",0x19ca78af,0xb6bc0235),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232",0x63f2e0bd,0xb9e175d3),
-	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CA=
RD: CF232-5",0x63f2e0bd,0xfce33442),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232",0x3beb8cf2,0x171e=
7190),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232-5",0x3beb8cf2,0x20=
da4262),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF428",0x3beb8cf2,0xea5d=
d57d),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF500",0x3beb8cf2,0xd772=
55fa),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: IC232",0x3beb8cf2,0x6a70=
9903),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: SL232",0x3beb8cf2,0x1843=
0676),
-	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: XL232",0x3beb8cf2,0x6f93=
3767),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial+Parallel Port: SP230",0x=
3beb8cf2,0xdb9e58bc),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: CF332",0x3beb8cf2,=
0x16dc1ba7),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL332",0x3beb8cf2,=
0x19816c41),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL385",0x3beb8cf2,=
0x64112029),
-	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(2,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
-	PCMCIA_MFC_DEVICE_PROD_ID12(3,"Elan","Serial Port: SL432",0x3beb8cf2,=
0x1cce7ac4),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100  1.00.", 0x19ca78af, 0xf964f42b),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL100", 0x19ca78af, 0x71d98e83),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232  1.00.", 0x19ca78af, 0x69fb7490),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL C=
ARD: SL232", 0x19ca78af, 0xb6bc0235),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232", 0x63f2e0bd, 0xb9e175d3),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.", "SERIAL C=
ARD: CF232-5", 0x63f2e0bd, 0xfce33442),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232", 0x3beb8cf2, 0x1=
71e7190),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF232-5", 0x3beb8cf2, 0=
x20da4262),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF428", 0x3beb8cf2, 0xe=
a5dd57d),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: CF500", 0x3beb8cf2, 0xd=
77255fa),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: IC232", 0x3beb8cf2, 0x6=
a709903),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: SL232", 0x3beb8cf2, 0x1=
8430676),
+	PCMCIA_DEVICE_PROD_ID12("Elan", "Serial Port: XL232", 0x3beb8cf2, 0x6=
f933767),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0, "Elan", "Serial+Parallel Port: SP230",=
 0x3beb8cf2, 0xdb9e58bc),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: CF332", 0x3beb8c=
f2, 0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL332", 0x3beb8c=
f2, 0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL385", 0x3beb8c=
f2, 0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(2, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(3, "Elan", "Serial Port: SL432", 0x3beb8c=
f2, 0x1cce7ac4),
 	PCMCIA_DEVICE_MANF_CARD(0x0279, 0x950b),
 	/* too generic */
 	/* PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0160, 0x0002), */
--=20
1.9.1



From - Thu Nov 08 21:38:25 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [patch 1/4] hrtimer: Handle remaining time proper for
 TIME_LOW_RES
Date: Sat, 16 Jan 2016 19:36:47 +0100
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 <20160114164159.273328486@linutronix.de>
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Cc: LKML <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Helge Deller <deller@gmx.de>,
	John Stultz <john.stultz@linaro.org>,
	linux-m68k@lists.linux-m68k.org, dhowells@redhat.com
To: Thomas Gleixner <tglx@linutronix.de>, linux-parisc@vger.kernel.org,
	John David Anglin <dave.anglin@bell.net>
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Hi Thomas,

* Thomas Gleixner <tglx@linutronix.de>:
> If CONFIG_TIME_LOW_RES is enabled we add a jiffie to the relative timeout to
> prevent short sleeps, but we do not account for that in interfaces which
> retrieve the remaining time.
> 
> Helge observed that timerfd can return a remaining time larger than the
> relative timeout. That's not expected and breaks userland test programs.
> 
> Store the information that the timer was armed relative and provide functions
> to adjust the remaining time. To avoid bloating the hrtimer struct make state
> a u8, which as a bonus results in better code on x86 at least.
> 
> Reported-by: Helge Deller <deller@gmx.de>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Great!
You can add for this series:
Tested-by: Helge Deller <deller@gmx.de>

Any chance it can get backported to v4.4 ?

Thanks,
Helge

> ---
>  include/linux/hrtimer.h  |   34 ++++++++++++++++++++++++++---
>  kernel/time/hrtimer.c    |   55 +++++++++++++++++++++++++++++++----------------
>  kernel/time/timer_list.c |    2 -
>  3 files changed, 69 insertions(+), 22 deletions(-)
> 
> --- a/include/linux/hrtimer.h
> +++ b/include/linux/hrtimer.h
> @@ -87,7 +87,8 @@ enum hrtimer_restart {
>   * @function:	timer expiry callback function
>   * @base:	pointer to the timer base (per cpu and per clock)
>   * @state:	state information (See bit values above)
> - * @start_pid: timer statistics field to store the pid of the task which
> + * @is_rel:	Set if the timer was armed relative
> + * @start_pid:  timer statistics field to store the pid of the task which
>   *		started the timer
>   * @start_site:	timer statistics field to store the site where the timer
>   *		was started
> @@ -101,7 +102,8 @@ struct hrtimer {
>  	ktime_t				_softexpires;
>  	enum hrtimer_restart		(*function)(struct hrtimer *);
>  	struct hrtimer_clock_base	*base;
> -	unsigned long			state;
> +	u8				state;
> +	u8				is_rel;
>  #ifdef CONFIG_TIMER_STATS
>  	int				start_pid;
>  	void				*start_site;
> @@ -321,6 +323,27 @@ static inline void clock_was_set_delayed
>  
>  #endif
>  
> +static inline ktime_t
> +__hrtimer_expires_remaining_adjusted(const struct hrtimer *timer, ktime_t now)
> +{
> +	ktime_t rem = ktime_sub(timer->node.expires, now);
> +
> +	/*
> +	 * Adjust relative timers for the extra we added in
> +	 * hrtimer_start_range_ns() to prevent short timeouts.
> +	 */
> +	if (IS_ENABLED(CONFIG_TIME_LOW_RES) && timer->is_rel)
> +		rem.tv64 -= hrtimer_resolution;
> +	return rem;
> +}
> +
> +static inline ktime_t
> +hrtimer_expires_remaining_adjusted(const struct hrtimer *timer)
> +{
> +	return __hrtimer_expires_remaining_adjusted(timer,
> +						    timer->base->get_time());
> +}
> +
>  extern void clock_was_set(void);
>  #ifdef CONFIG_TIMERFD
>  extern void timerfd_clock_was_set(void);
> @@ -390,7 +413,12 @@ static inline void hrtimer_restart(struc
>  }
>  
>  /* Query timers: */
> -extern ktime_t hrtimer_get_remaining(const struct hrtimer *timer);
> +extern ktime_t __hrtimer_get_remaining(const struct hrtimer *timer, bool adjust);
> +
> +static inline ktime_t hrtimer_get_remaining(const struct hrtimer *timer)
> +{
> +	return __hrtimer_get_remaining(timer, false);
> +}
>  
>  extern u64 hrtimer_get_next_event(void);
>  
> --- a/kernel/time/hrtimer.c
> +++ b/kernel/time/hrtimer.c
> @@ -897,10 +897,10 @@ static int enqueue_hrtimer(struct hrtime
>   */
>  static void __remove_hrtimer(struct hrtimer *timer,
>  			     struct hrtimer_clock_base *base,
> -			     unsigned long newstate, int reprogram)
> +			     u8 newstate, int reprogram)
>  {
>  	struct hrtimer_cpu_base *cpu_base = base->cpu_base;
> -	unsigned int state = timer->state;
> +	u8 state = timer->state;
>  
>  	timer->state = newstate;
>  	if (!(state & HRTIMER_STATE_ENQUEUED))
> @@ -930,7 +930,7 @@ static inline int
>  remove_hrtimer(struct hrtimer *timer, struct hrtimer_clock_base *base, bool restart)
>  {
>  	if (hrtimer_is_queued(timer)) {
> -		unsigned long state = timer->state;
> +		u8 state = timer->state;
>  		int reprogram;
>  
>  		/*
> @@ -954,6 +954,22 @@ remove_hrtimer(struct hrtimer *timer, st
>  	return 0;
>  }
>  
> +static inline ktime_t hrtimer_update_lowres(struct hrtimer *timer, ktime_t tim,
> +					    const enum hrtimer_mode mode)
> +{
> +#ifdef CONFIG_TIME_LOW_RES
> +	/*
> +	 * CONFIG_TIME_LOW_RES indicates that the system has no way to return
> +	 * granular time values. For relative timers we add hrtimer_resolution
> +	 * (i.e. one jiffie) to prevent short timeouts.
> +	 */
> +	timer->is_rel = mode & HRTIMER_MODE_REL;
> +	if (timer->is_rel)
> +		tim = ktime_add_safe(tim, ktime_set(0, hrtimer_resolution));
> +#endif
> +	return tim;
> +}
> +
>  /**
>   * hrtimer_start_range_ns - (re)start an hrtimer on the current CPU
>   * @timer:	the timer to be added
> @@ -974,19 +990,10 @@ void hrtimer_start_range_ns(struct hrtim
>  	/* Remove an active timer from the queue: */
>  	remove_hrtimer(timer, base, true);
>  
> -	if (mode & HRTIMER_MODE_REL) {
> +	if (mode & HRTIMER_MODE_REL)
>  		tim = ktime_add_safe(tim, base->get_time());
> -		/*
> -		 * CONFIG_TIME_LOW_RES is a temporary way for architectures
> -		 * to signal that they simply return xtime in
> -		 * do_gettimeoffset(). In this case we want to round up by
> -		 * resolution when starting a relative timer, to avoid short
> -		 * timeouts. This will go away with the GTOD framework.
> -		 */
> -#ifdef CONFIG_TIME_LOW_RES
> -		tim = ktime_add_safe(tim, ktime_set(0, hrtimer_resolution));
> -#endif
> -	}
> +
> +	tim = hrtimer_update_lowres(timer, tim, mode);
>  
>  	hrtimer_set_expires_range_ns(timer, tim, delta_ns);
>  
> @@ -1074,19 +1081,23 @@ EXPORT_SYMBOL_GPL(hrtimer_cancel);
>  /**
>   * hrtimer_get_remaining - get remaining time for the timer
>   * @timer:	the timer to read
> + * @adjust:	adjust relative timers when CONFIG_TIME_LOW_RES=y
>   */
> -ktime_t hrtimer_get_remaining(const struct hrtimer *timer)
> +ktime_t __hrtimer_get_remaining(const struct hrtimer *timer, bool adjust)
>  {
>  	unsigned long flags;
>  	ktime_t rem;
>  
>  	lock_hrtimer_base(timer, &flags);
> -	rem = hrtimer_expires_remaining(timer);
> +	if (IS_ENABLED(CONFIG_TIME_LOW_RES) && adjust)
> +		rem = hrtimer_expires_remaining_adjusted(timer);
> +	else
> +		rem = hrtimer_expires_remaining(timer);
>  	unlock_hrtimer_base(timer, &flags);
>  
>  	return rem;
>  }
> -EXPORT_SYMBOL_GPL(hrtimer_get_remaining);
> +EXPORT_SYMBOL_GPL(__hrtimer_get_remaining);
>  
>  #ifdef CONFIG_NO_HZ_COMMON
>  /**
> @@ -1220,6 +1231,14 @@ static void __run_hrtimer(struct hrtimer
>  	fn = timer->function;
>  
>  	/*
> +	 * Clear the 'is relative' flag for the TIME_LOW_RES case. If the
> +	 * timer is restarted with a period then it becomes an absolute
> +	 * timer. If its not restarted it does not matter.
> +	 */
> +	if (IS_ENABLED(CONFIG_TIME_LOW_RES))
> +		timer->is_rel = false;
> +
> +	/*
>  	 * Because we run timers from hardirq context, there is no chance
>  	 * they get migrated to another cpu, therefore its safe to unlock
>  	 * the timer base.
> --- a/kernel/time/timer_list.c
> +++ b/kernel/time/timer_list.c
> @@ -69,7 +69,7 @@ print_timer(struct seq_file *m, struct h
>  	print_name_offset(m, taddr);
>  	SEQ_printf(m, ", ");
>  	print_name_offset(m, timer->function);
> -	SEQ_printf(m, ", S:%02lx", timer->state);
> +	SEQ_printf(m, ", S:%02x", timer->state);
>  #ifdef CONFIG_TIMER_STATS
>  	SEQ_printf(m, ", ");
>  	print_name_offset(m, timer->start_site);
> 
> 
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc architecture updates for v4.5
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Hi Linus,

please pull the patches for the parisc architecture for v4.5 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.5-1

This patchset includes two major fixes which are both scheduled for stable:
First, __ARCH_SI_PREAMBLE_SIZE was defined with a wrong value.
Second, huge page pte and TLB changes needed protection with a spinlock.
Other than that there are just some trivial optimizations and cleanups.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (6):
      parisc: Initialize PCI bridge cache line and default latency
      parisc: Reduce overhead of parisc_requires_coherency()
      parisc: Fix __ARCH_SI_PREAMBLE_SIZE
      parisc: Drop parisc-specific NSIGTRAP define
      parisc: Imporove debug info about space registers and TLB configuration
      parisc: Protect huge page pte changes with spinlocks

 arch/parisc/include/asm/hugetlb.h      | 20 +++---------
 arch/parisc/include/asm/pci.h          |  1 +
 arch/parisc/include/asm/pdc.h          |  2 +-
 arch/parisc/include/asm/processor.h    | 17 +++++-----
 arch/parisc/include/uapi/asm/siginfo.h |  7 ++--
 arch/parisc/kernel/cache.c             | 26 ++++++++++++---
 arch/parisc/kernel/pci.c               | 26 +++++++++++++++
 arch/parisc/kernel/processor.c         | 10 +++++-
 arch/parisc/mm/hugetlbpage.c           | 60 +++++++++++++++++++++++++++-------
 drivers/parisc/dino.c                  |  4 ++-
 drivers/parisc/lba_pci.c               |  4 ++-
 11 files changed, 129 insertions(+), 48 deletions(-)


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The value of __ARCH_SI_PREAMBLE_SIZE defines the size (including padding) of
the part of the struct siginfo that is before the union, and it is then used to
calculate the needed padding (SI_PAD_SIZE) to make the size of struct siginfo
equal to 128 (SI_MAX_SIZE) bytes.

Depending on the target architecture and word width it equals to either
3 or 4 times sizeof int.

Since the very beginning we had __ARCH_SI_PREAMBLE_SIZE wrong on the parisc
architecture for the 64bit kernel build. It's even more frustrating, because it
can easily be checked at compile time if the value was defined correctly.

This patch adds such a check for the correctness of __ARCH_SI_PREAMBLE_SIZE in
the hope that it will prevent existing and future architectures from running
into the same problem.

I refrained from replacing __ARCH_SI_PREAMBLE_SIZE by offsetof() in
copy_siginfo() in include/asm-generic/siginfo.h, because a) it doesn't make any
difference and b) it's used in the Documentation/kmemcheck.txt example.

I ran this patch through the 0-DAY kernel test infrastructure and only the
parisc architecture triggered as expected. That means that this patch should be
OK for all major architectures.
 
Signed-off-by: Helge Deller <deller@gmx.de>
 
diff --git a/kernel/signal.c b/kernel/signal.c
index f3f1f7a..1ccd218 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -3579,6 +3579,10 @@ __weak const char *arch_vma_name(struct vm_area_struct *vma)
 
 void __init signals_init(void)
 {
+	/* If this check fails, the __ARCH_SI_PREAMBLE_SIZE value is wrong! */
+	BUILD_BUG_ON(__ARCH_SI_PREAMBLE_SIZE
+		!= offsetof(struct siginfo, _sifields._pad));
+
 	sigqueue_cachep = KMEM_CACHE(sigqueue, SLAB_PANIC);
 }
 
--
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From: Guenter Roeck <linux@roeck-us.net>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc
Subject: [PATCH] mm: Remove duplicate definitions of MADV_FREE
Date: Sun, 17 Jan 2016 19:29:06 -0800
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Cc: Richard Henderson <rth@twiddle.net>,
	Ralf Baechle <ralf@linux-mips.org>,
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	linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
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Commits 21f55b018ba5 ("arch/*/include/uapi/asm/mman.h: : let MADV_FREE
have same value for all architectures") and ef58978f1eaa ("mm: define
MADV_FREE for some arches") both defined MADV_FREE, but did not use the
same values. This results in build errors such as

./arch/alpha/include/uapi/asm/mman.h:53:0: error: "MADV_FREE" redefined
./arch/alpha/include/uapi/asm/mman.h:50:0: note:
	this is the location of the previous definition

for the affected architectures.

Fixes: 21f55b018ba5 ("arch/*/include/uapi/asm/mman.h: : let MADV_FREE have same value for all architectures")
Fixes: ef58978f1eaa ("mm: define MADV_FREE for some arches")
Cc: Chen Gang <gang.chen.5i5j@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/alpha/include/uapi/asm/mman.h  | 1 -
 arch/mips/include/uapi/asm/mman.h   | 1 -
 arch/parisc/include/uapi/asm/mman.h | 1 -
 arch/xtensa/include/uapi/asm/mman.h | 1 -
 4 files changed, 4 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index ab336c06153e..fec1947b8dbc 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -47,7 +47,6 @@
 #define MADV_WILLNEED	3		/* will need these pages */
 #define	MADV_SPACEAVAIL	5		/* ensure resources are available */
 #define MADV_DONTNEED	6		/* don't need these pages */
-#define MADV_FREE	7		/* free pages only if memory pressure */
 
 /* common/generic parameters */
 #define MADV_FREE	8		/* free pages only if memory pressure */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index b0ebe59f73fd..ccdcfcbb24aa 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -73,7 +73,6 @@
 #define MADV_SEQUENTIAL 2		/* expect sequential page references */
 #define MADV_WILLNEED	3		/* will need these pages */
 #define MADV_DONTNEED	4		/* don't need these pages */
-#define MADV_FREE	5		/* free pages only if memory pressure */
 
 /* common parameters: try to keep these consistent across architectures */
 #define MADV_FREE	8		/* free pages only if memory pressure */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index cf830d465f75..f3db7d8eb0c2 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -43,7 +43,6 @@
 #define MADV_SPACEAVAIL 5               /* insure that resources are reserved */
 #define MADV_VPS_PURGE  6               /* Purge pages from VM page cache */
 #define MADV_VPS_INHERIT 7              /* Inherit parents page size */
-#define MADV_FREE	8		/* free pages only if memory pressure */
 
 /* common/generic parameters */
 #define MADV_FREE	8		/* free pages only if memory pressure */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index d030594ed22b..9e079d49e7f2 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -86,7 +86,6 @@
 #define MADV_SEQUENTIAL	2		/* expect sequential page references */
 #define MADV_WILLNEED	3		/* will need these pages */
 #define MADV_DONTNEED	4		/* don't need these pages */
-#define MADV_FREE	5		/* free pages only if memory pressure */
 
 /* common parameters: try to keep these consistent across architectures */
 #define MADV_FREE	8		/* free pages only if memory pressure */
-- 
2.1.4



From - Thu Nov 08 21:38:25 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc
Subject: Re: [PATCH] mm: Remove duplicate definitions of MADV_FREE
Date: Mon, 18 Jan 2016 09:23:49 +0100
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To: Guenter Roeck <linux@roeck-us.net>,
	Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2128875>

On 18.01.2016 04:29, Guenter Roeck wrote:
> Commits 21f55b018ba5 ("arch/*/include/uapi/asm/mman.h: : let MADV_FREE
> have same value for all architectures") and ef58978f1eaa ("mm: define
> MADV_FREE for some arches") both defined MADV_FREE, but did not use the
> same values. This results in build errors such as
> 
> ./arch/alpha/include/uapi/asm/mman.h:53:0: error: "MADV_FREE" redefined
> ./arch/alpha/include/uapi/asm/mman.h:50:0: note:
> 	this is the location of the previous definition
> 
> for the affected architectures.
> 
> Fixes: 21f55b018ba5 ("arch/*/include/uapi/asm/mman.h: : let MADV_FREE have same value for all architectures")
> Fixes: ef58978f1eaa ("mm: define MADV_FREE for some arches")
> Cc: Chen Gang <gang.chen.5i5j@gmail.com>
> Cc: Minchan Kim <minchan@kernel.org>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>


On parisc both definitions of MADV_FREE are 8, so I do not face the compiler error.
Nevertheless it should be cleaned up.

Acked-by: Helge Deller <deller@gmx.de>  (for parisc)

Thanks!
Helge

> ---
>  arch/alpha/include/uapi/asm/mman.h  | 1 -
>  arch/mips/include/uapi/asm/mman.h   | 1 -
>  arch/parisc/include/uapi/asm/mman.h | 1 -
>  arch/xtensa/include/uapi/asm/mman.h | 1 -
>  4 files changed, 4 deletions(-)
> 
> diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
> index cf830d465f75..f3db7d8eb0c2 100644
> --- a/arch/parisc/include/uapi/asm/mman.h
> +++ b/arch/parisc/include/uapi/asm/mman.h
> @@ -43,7 +43,6 @@
>  #define MADV_SPACEAVAIL 5               /* insure that resources are reserved */
>  #define MADV_VPS_PURGE  6               /* Purge pages from VM page cache */
>  #define MADV_VPS_INHERIT 7              /* Inherit parents page size */
> -#define MADV_FREE	8		/* free pages only if memory pressure */
>  
>  /* common/generic parameters */
>  #define MADV_FREE	8		/* free pages only if memory pressure */



From - Thu Nov 08 21:38:25 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix ptrace: syscall number and return value
 modification
Date: Tue, 19 Jan 2016 16:08:49 +0100
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Cc: Mike Frysinger <vapier@gentoo.org>
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Mike Frysinger reported that his ptrace testcase showed strange
behaviour on parisc: It was not possible to avoid a syscall and the
return value of a syscall couldn't be changed.

To modify a syscall number, we were missing to save the new syscall
number to gr20 which is then picked up later in assembly again.

The effect that the return value couldn't be changed is a side-effect of
another bug in the assembly code. When a process is ptraced, userspace
expects each syscall to report entrance and exit of a syscall.  If a
syscall number was given which doesn't exist, we jumped to the normal
syscall exit code instead of informing userspace that the (non-existant)
syscall exits. This unexpected behaviour confuses userspace and thus the
bug was misinterpreted as if we can't change the return value.

This patch fixes both problems and was tested on 64bit kernel with
32bit userspace.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: <stable@vger.kernel.org>

diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 9585c81..ce0b2b4 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -269,14 +269,19 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 
 long do_syscall_trace_enter(struct pt_regs *regs)
 {
-	long ret = 0;
-
 	/* Do the secure computing check first. */
 	secure_computing_strict(regs->gr[20]);
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
-	    tracehook_report_syscall_entry(regs))
-		ret = -1L;
+	    tracehook_report_syscall_entry(regs)) {
+		/*
+		 * Tracing decided this syscall should not happen or the
+		 * debugger stored an invalid system call number. Skip
+		 * the system call and the system call restart handling.
+		 */
+		regs->gr[20] = -1UL;
+		goto out;
+	}
 
 #ifdef CONFIG_64BIT
 	if (!is_compat_task())
@@ -290,7 +295,8 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 			regs->gr[24] & 0xffffffff,
 			regs->gr[23] & 0xffffffff);
 
-	return ret ? : regs->gr[20];
+out:
+	return regs->gr[20];
 }
 
 void do_syscall_trace_exit(struct pt_regs *regs)
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 3fbd725..fbafa0d 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -343,7 +343,7 @@ tracesys_next:
 #endif
 
 	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
-	b,n	.Lsyscall_nosys
+	b,n	.Ltracesys_nosys
 
 	LDREGX  %r20(%r19), %r19
 
@@ -359,6 +359,9 @@ tracesys_next:
 	be      0(%sr7,%r19)
 	ldo	R%tracesys_exit(%r2),%r2
 
+.Ltracesys_nosys:
+	ldo	-ENOSYS(%r0),%r28		/* set errno */
+
 	/* Do *not* call this function on the gateway page, because it
 	makes a direct call to syscall_trace. */
 	
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From - Thu Nov 08 21:38:25 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: ptrace interface does not permit modification of syscall return
Date: Tue, 19 Jan 2016 16:11:02 +0100
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On 28.12.2015 19:03, Mike Frysinger wrote:
> On 22 Dec 2015 22:10, Helge Deller wrote:
>> On 21.12.2015 18:55, Mike Frysinger wrote:
>>> i have a ptrace program that watches for specific syscalls and when
>>> matched, will:
>>>  - on entry change the syscall nr to -1 (so the kernel will skip it)
>>>  - on exit change the return to -EPERM so the userspace sees a denial
>>>
>>> i have this working on most arches (x86, x86_64, arm, alpha, ia64, etc...).
>>> on parisc, the kernel (using 3.18.7 currently) appears to be wrong.  in my
>>> tests, if i don't mess with the syscall nr, i can change the return value
>>> fine (to EPERM or whatever).  but the syscall executed which i do not want.
>>> if i change the syscall to -1, then i can't change the return value (so the
>>> child sees ENOSYS), but the kernel still executes the original syscall.
>>>
>>> i have a simple test case attached to show the issue.  the code does:
>>>  - spawn a child with the parent tracing it
>>>  - child will do:
>>>   - dupe stderr to another fd
>>>   - unlink a file named ".test.flag"
>>>   - write a message through the new fd
>>>   - close a magic # so the parent knows to start denying
>>>     - should see EPERM but it sees ENOSYS
>>>   - close the new fd
>>>     - should see EPERM but it is closed!
>>>   - write to the new fd
>>>     - should work, but the fd is closed
>>>   - call create on ".test.flag"
>>>     - should see EPERM, but the file is created!
>>>  - parent will do:
>>>   - log the syscalls until child runs close(-12345)
>>>   - the parent will then try to deny all close/creat calls
>>>   - uses PTRACE_POKEUSER w/PT_GR20 to set syscall to -1
>>>   - uses PTRACE_POKEUSER w/PT_GR28 to set return to -EPERM
>>>
>>> you can run the test case by doing:
>>> $ gcc test.c && ./a.out
>>
>> I agree, something is fishy :-)
>>
>> I did some tests with your testcase.
>> First problem I had was, that compiling failed since it didn't found the asm/offset.h header file.
>> Which one did you used? I know it usually should come with the kernel headers, but there it is asm-offsets.h.
> 
> hmm, looks like it got installed by hand at some point (Jul 2004 datestamp!)
> and never cleaned up.
> 
>> First problem: I had to install the 64bit header file. PT_GR20 in this one was much higher than it should be for 32bit userspace.
>>
>> So, I used those defines (taken from the strace source package):
>> #define PT_GR20 (20*4)
>> #define PT_GR26 (26*4)
>> #define PT_GR28 (28*4)
>> #define PT_IAOQ0 (106*4)
>> #define PT_IAOQ1 (107*4)
> 
> these are the values in my local asm/offset.h, and what i was using
> in my original code -- the register # multiplied by 4.
> 
>> With that I got those output:
> 
> looks like you're seeing the same as me.  i'm only testing 32bit user
> and 32bit kernel currently as we don't have a 64bit userspace :).

Mike, can you please test the patch I just posted:
https://patchwork.kernel.org/patch/8063301/

Helge
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From: Mike Frysinger <vapier@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Fix ptrace: syscall number and return value
 modification
Date: Tue, 19 Jan 2016 14:47:07 -0500
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To: Helge Deller <deller@gmx.de>
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On 19 Jan 2016 16:08, Helge Deller wrote:
> Mike Frysinger reported that his ptrace testcase showed strange
> behaviour on parisc: It was not possible to avoid a syscall and the
> return value of a syscall couldn't be changed.
>=20
> To modify a syscall number, we were missing to save the new syscall
> number to gr20 which is then picked up later in assembly again.
>=20
> The effect that the return value couldn't be changed is a side-effect of
> another bug in the assembly code. When a process is ptraced, userspace
> expects each syscall to report entrance and exit of a syscall.  If a
> syscall number was given which doesn't exist, we jumped to the normal
> syscall exit code instead of informing userspace that the (non-existant)
> syscall exits. This unexpected behaviour confuses userspace and thus the
> bug was misinterpreted as if we can't change the return value.
>=20
> This patch fixes both problems and was tested on 64bit kernel with
> 32bit userspace.

thanks, i'll give it a spin on my box too

on a related note, can you check if arg reloading works too ?
i.e. i should also be able to mung syscall args on the fly.
e.g. if the tracee does open("/foo", O_RDWR), the tracer should
be able to munge it to do open("/foo", O_RDONLY).
-mike

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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Fix ptrace: syscall number and return value
 modification
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

On 19.01.2016 20:47, Mike Frysinger wrote:
> On 19 Jan 2016 16:08, Helge Deller wrote:
>> Mike Frysinger reported that his ptrace testcase showed strange
>> behaviour on parisc: It was not possible to avoid a syscall and the
>> return value of a syscall couldn't be changed.
>>
>> To modify a syscall number, we were missing to save the new syscall
>> number to gr20 which is then picked up later in assembly again.
>>
>> The effect that the return value couldn't be changed is a side-effect of
>> another bug in the assembly code. When a process is ptraced, userspace
>> expects each syscall to report entrance and exit of a syscall.  If a
>> syscall number was given which doesn't exist, we jumped to the normal
>> syscall exit code instead of informing userspace that the (non-existant)
>> syscall exits. This unexpected behaviour confuses userspace and thus the
>> bug was misinterpreted as if we can't change the return value.
>>
>> This patch fixes both problems and was tested on 64bit kernel with
>> 32bit userspace.
> 
> thanks, i'll give it a spin on my box too
> 
> on a related note, can you check if arg reloading works too ?
> i.e. i should also be able to mung syscall args on the fly.
> e.g. if the tracee does open("/foo", O_RDWR), the tracer should
> be able to munge it to do open("/foo", O_RDONLY).

I didn't tested it, but from looking at the assembly the user args get
reloaded from the task struct after having called do_syscall_trace_enter().
So, in theory it should work.

Helge
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From - Thu Nov 08 21:38:26 2018
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From: Mike Frysinger <vapier@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Fix ptrace: syscall number and return value
 modification
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On 19 Jan 2016 16:08, Helge Deller wrote:
> Mike Frysinger reported that his ptrace testcase showed strange
> behaviour on parisc: It was not possible to avoid a syscall and the
> return value of a syscall couldn't be changed.
>=20
> To modify a syscall number, we were missing to save the new syscall
> number to gr20 which is then picked up later in assembly again.
>=20
> The effect that the return value couldn't be changed is a side-effect of
> another bug in the assembly code. When a process is ptraced, userspace
> expects each syscall to report entrance and exit of a syscall.  If a
> syscall number was given which doesn't exist, we jumped to the normal
> syscall exit code instead of informing userspace that the (non-existant)
> syscall exits. This unexpected behaviour confuses userspace and thus the
> bug was misinterpreted as if we can't change the return value.
>=20
> This patch fixes both problems and was tested on 64bit kernel with
> 32bit userspace.

i've checked that i can reset the syscall # fine and mung the return
value.  i haven't checked arg replacement although i don't need that
myself (yet?).  thanks !

Tested-by: Mike Frysinger <vapier@gentoo.org>
-mike

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From - Thu Nov 08 21:38:26 2018
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Subject: SCSI bug
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I gave 4.4.0+ a try this morning and we still have the SCSI issue previously reported:

sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 70
sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi host0: sym-2.2.3
usb 1-3: new high-speed USB device number 2 using ehci-pci
usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb2: Product: OHCI PCI host controller
usb usb2: Manufacturer: Linux 4.4.0+ ohci_hcd
usb usb2: SerialNumber: 0000:00:01.0
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 3 ports detected
ohci-pci 0000:00:01.1: OHCI PCI host controller
ohci-pci 0000:00:01.1: new USB bus registered, assigned bus number 3
ohci-pci 0000:00:01.1: irq 67, io mem 0xffffffff80001000
usb 1-3: New USB device found, idVendor=1058, idProduct=0748
usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=5
usb 1-3: Product: My Passport 0748
usb 1-3: Manufacturer: Western Digital
usb 1-3: SerialNumber: 575836314542325A33383231
usb-storage 1-3:1.0: USB Mass Storage device detected
scsi host1: usb-storage 1-3:1.0
usbcore: registered new interface driver usb-storage
usbcore: registered new interface driver uas
usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb3: Product: OHCI PCI host controller
usb usb3: Manufacturer: Linux 4.4.0+ ohci_hcd
usb usb3: SerialNumber: 0000:00:01.1
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
pata_cmd64x 0000:00:02.0: Secondary port is disabled
scsi host2: pata_cmd64x
scsi host3: pata_cmd64x
ata1: PATA max UDMA/100 cmd 0xd18 ctl 0xd24 bmdma 0xd00 irq 69
ata2: DUMMY
ata1.00: ATAPI: DW-224E, C.0B, max UDMA/33
ata1.00: configured for UDMA/33
scsi 2:0:0:0: CD-ROM            TEAC     DW-224E          C.0B PQ: 0 ANSI: 5
sr 2:0:0:0: [sr0] scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray
cdrom: Uniform CD-ROM driver Revision: 3.20
scsi 1:0:0:0: Direct-Access     WD       My Passport 0748 1022 PQ: 0 ANSI: 6
scsi 1:0:0:1: Enclosure         WD       SES Device       1022 PQ: 0 ANSI: 6
sd 1:0:0:0: [sda] Spinning up disk...
.
scsi 0:0:0:0: Direct-Access     SEAGATE  ST3300007LC      D705 PQ: 0 ANSI: 3
scsi target0:0:0: tagged command queuing enabled, command queue depth 16.
scsi target0:0:0: Beginning Domain Validation
scsi target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
scsi target0:0:0: Ending Domain Validation
sd 0:0:0:0: [sdb] 585937500 512-byte logical blocks: (300 GB/279 GiB)
sd 0:0:0:0: [sdb] Write Protect is off
sd 0:0:0:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
sd 0:0:0:0: [sdb] Attached SCSI disk
ready
sd 1:0:0:0: [sda] 3906963456 512-byte logical blocks: (2.00 TB/1.82 TiB)
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] No Caching mode page found
sd 1:0:0:0: [sda] Assuming drive cache: write through
ses 1:0:0:1: Attached Enclosure device
 sda: sda1 sda2
sd 1:0:0:0: [sda] Attached SCSI disk
random: nonblocking pool is initialized
------------[ cut here ]------------
WARNING: at block/blk-merge.c:454
Modules linked in: ses enclosure scsi_transport_sas sd_mod sr_mod cdrom uas usb_storage pata_cmd64x ohci_pci tg3(+) ptp sym53c8xx(+) libata pps_core ehci_pci scsi_transport_spi ohci_hcd ehci_hcd scsi_mod usbcore usb_common
CPU: 1 PID: 930 Comm: systemd-udevd Not tainted 4.4.0+ #1
task: 000000007f038c68 ti: 000000007e198000 task.ti: 000000007e198000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Not tainted
r00-03  000000ff0804ff0e 0000000040756dc0 0000000000000000 000000007e199210
r04-07  000000004072cdc0 0000000000000000 0000000000000000 000000000000001e
r08-11  0000000000000001 0000000000000000 000000007c1fe1b8 0000000000000000
r12-15  0000000000000002 00000000000001e0 0000000000001000 000000007e1d6800
r16-19  000000007c1fa6f8 000000004270e3c0 000000007c1fe1b8 0000000000000000
r20-23  0000000000000000 000000007e3f3c00 00000000407ac690 0000000000000000
r24-27  0000000000000000 000000007c1fa6f8 000000004270e3c0 000000004072cdc0
r28-31  0000000000000001 0000000000001000 000000007e199340 0000000000000001
sr00-03  0000000000012000 0000000000000000 0000000000012000 0000000000012000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004038d5f4 000000004038d5f8
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000f07f9fe1b8
 CPU:        1   CR30: 000000007e198000 CR31: ff7f1bfb00e9e4ff
 ORIG_R28: 000000007e1994f0
 IAOQ[0]: blk_rq_map_sg+0x564/0x598
 IAOQ[1]: blk_rq_map_sg+0x568/0x598
 RP(r2):           (null)
Backtrace:
 [<0000000018317690>] scsi_init_sgtable+0x70/0x168 [scsi_mod]
 [<00000000183177f4>] scsi_init_io+0x6c/0x250 [scsi_mod]
 [<000000001c7f16b0>] sd_setup_read_write_cmnd+0x58/0x948 [sd_mod]
 [<000000001c7f1fe4>] sd_init_command+0x44/0x130 [sd_mod]
 [<0000000018317adc>] scsi_setup_cmnd+0x104/0x1c0 [scsi_mod]
 [<0000000018317e28>] scsi_prep_fn+0x100/0x340 [scsi_mod]
 [<000000004038663c>] blk_peek_request+0x1b4/0x290
 [<0000000018319a34>] scsi_request_fn+0xf4/0xab0 [scsi_mod]
 [<00000000403819e4>] __blk_run_queue+0x4c/0x70
 [<00000000403ac6a8>] cfq_insert_request+0x2e0/0x588
 [<0000000040380ba0>] __elv_add_request+0x190/0x2d8

---[ end trace 19da17b0d547c92b ]---
------------[ cut here ]------------
kernel BUG at drivers/scsi/scsi_lib.c:1097!
CPU: 1 PID: 930 Comm: systemd-udevd Tainted: G        W       4.4.0+ #1
task: 000000007f038c68 ti: 000000007e198000 task.ti: 000000007e198000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Tainted: G        W      
r00-03  000000ff0804ff0e 0000000040756dc0 0000000018317690 000000007e199170
r04-07  0000000018301000 000000007c1fa6f8 000000007e21ab60 0000000000000000
r08-11  000000007c1fa6f8 000000007e1fe800 00000000408444d0 0000000000000110
r12-15  0000000000000000 000000007e198798 0000000018301000 0000000040756dc0
r16-19  00000000408444dc 000000007e1fe800 000000007c216800 0000000000000000
r20-23  0000000000000000 000000007e3f3c00 00000000407ac690 0000000000000000
r24-27  0000000000000000 000000007c1fa6f8 000000004270e3c0 000000004072cdc0
r28-31  0000000000000002 0000000000001000 000000007e199210 0000000000000001
sr00-03  0000000000012000 0000000000000000 0000000000012000 0000000000012000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000183176d4 00000000183176d8
 IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000
 CPU:        1   CR30: 000000007e198000 CR31: ff7f1bfb00e9e4ff
 ORIG_R28: 0000000000000000
 IAOQ[0]: scsi_init_sgtable+0xb4/0x168 [scsi_mod]
 IAOQ[1]: scsi_init_sgtable+0xb8/0x168 [scsi_mod]
 RP(r2): scsi_init_sgtable+0x70/0x168 [scsi_mod]
Backtrace:
 [<00000000183177f4>] scsi_init_io+0x6c/0x250 [scsi_mod]
 [<000000001c7f16b0>] sd_setup_read_write_cmnd+0x58/0x948 [sd_mod]
 [<000000001c7f1fe4>] sd_init_command+0x44/0x130 [sd_mod]
 [<0000000018317adc>] scsi_setup_cmnd+0x104/0x1c0 [scsi_mod]
 [<0000000018317e28>] scsi_prep_fn+0x100/0x340 [scsi_mod]
 [<000000004038663c>] blk_peek_request+0x1b4/0x290
 [<0000000018319a34>] scsi_request_fn+0xf4/0xab0 [scsi_mod]
 [<00000000403819e4>] __blk_run_queue+0x4c/0x70
 [<00000000403ac6a8>] cfq_insert_request+0x2e0/0x588
 [<0000000040380ba0>] __elv_add_request+0x190/0x2d8

CPU: 1 PID: 930 Comm: systemd-udevd Tainted: G        W       4.4.0+ #1
Backtrace:
 [<000000004015d560>] show_stack+0x20/0x38
 [<00000000403b1f94>] dump_stack+0x9c/0x110
 [<000000004015d734>] die_if_kernel+0x19c/0x2e0
 [<000000004015e610>] handle_interruption+0x9a8/0x9d0

---[ end trace 19da17b0d547c92c ]---
NMI watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [systemd-udevd:930]
Modules linked in: ses enclosure scsi_transport_sas sd_mod sr_mod cdrom uas usb_storage pata_cmd64x ohci_pci tg3(+) ptp sym53c8xx(+) libata pps_core ehci_pci scsi_transport_spi ohci_hcd ehci_hcd scsi_mod usbcore usb_common
CPU: 3 PID: 930 Comm: systemd-udevd Tainted: G      D W       4.4.0+ #1
task: 000000007f038c68 ti: 000000007e198000 task.ti: 000000007e198000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001111 Tainted: G      D W      
r00-03  000000ff0806ff0f 000000007e199d00 00000000402039c0 000000007e199c30
r04-07  000000004072cdc0 000000007e199cd0 00000000407bc588 00000000407bc4a0
r08-11  00000000428443a0 00000000428443a8 0000000000000001 0000000040705660
r12-15  0000000000000000 000000007e199cd0 0000000018301000 0000000040756dc0
r16-19  000000007e199210 000000007e1fe800 000000007c216800 000000004282bfa0
r20-23  0000000000000001 00000000428443a8 000000000800000f 0000000000000000
r24-27  0000000000000000 0000000000000020 00000000428443a8 000000004072cdc0
r28-31  0000000000000001 000000007e199d50 000000007e199d00 0000000000000003
sr00-03  000000000001c000 0000000000000000 0000000000000000 000000000001c000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402039e8 00000000402039ec
 IIR: 4a7f0030    ISR: 000000004072cdc0  IOR: 000000007e36e620
 CPU:        3   CR30: 000000007e198000 CR31: ffffffffffffffff
 ORIG_R28: 0000000000000001
 IAOQ[0]: smp_call_function_many+0x338/0x3b0
 IAOQ[1]: smp_call_function_many+0x33c/0x3b0
 RP(r2): smp_call_function_many+0x310/0x3b0
Backtrace:
 [<0000000040203b18>] on_each_cpu+0x58/0xa0
 [<000000004015aed8>] flush_tlb_all+0x108/0x1e8
 [<0000000040258270>] tlb_flush_mmu_tlbonly+0x48/0xa8
 [<0000000040259048>] tlb_finish_mmu+0x30/0x98
 [<0000000040263e5c>] exit_mmap+0x134/0x1b8
 [<0000000040182668>] mmput+0xc0/0x1a8
 [<0000000040188eec>] do_exit+0x334/0xce0
 [<000000004015d790>] die_if_kernel+0x1f8/0x2e0
 [<000000004015e610>] handle_interruption+0x9a8/0x9d0

NMI watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [systemd-udevd:930]
Modules linked in: ses enclosure scsi_transport_sas sd_mod sr_mod cdrom uas usb_storage pata_cmd64x ohci_pci tg3(+) ptp sym53c8xx(+) libata pps_core ehci_pci scsi_transport_spi ohci_hcd ehci_hcd scsi_mod usbcore usb_common
CPU: 3 PID: 930 Comm: systemd-udevd Tainted: G      D W    L  4.4.0+ #1
task: 000000007f038c68 ti: 000000007e198000 task.ti: 000000007e198000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001111 Tainted: G      D W    L 
r00-03  000000ff0806ff0f 000000007e199d00 00000000402039c0 000000007e199c30
r04-07  000000004072cdc0 000000007e199cd0 00000000407bc588 00000000407bc4a0
r08-11  00000000428443a0 00000000428443a8 0000000000000001 0000000040705660
r12-15  0000000000000000 000000007e199cd0 0000000018301000 0000000040756dc0
r16-19  000000007e199210 000000007e1fe800 000000007c216800 000000004282bfa0
r20-23  0000000000000001 00000000428443a8 000000000800000f 0000000000000000
r24-27  0000000000000000 0000000000000020 00000000428443a8 000000004072cdc0
r28-31  0000000000000001 000000007e199d50 000000007e199d00 0000000000000003
sr00-03  000000000001c000 0000000000000000 0000000000000000 000000000001c000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402039e8 00000000402039ec
 IIR: 4a7f0030    ISR: 000000004072cdc0  IOR: 000000007e36e620
 CPU:        3   CR30: 000000007e198000 CR31: ffffffffffffffff
 ORIG_R28: 0000000000000001
 IAOQ[0]: smp_call_function_many+0x338/0x3b0
 IAOQ[1]: smp_call_function_many+0x33c/0x3b0
 RP(r2): smp_call_function_many+0x310/0x3b0
Backtrace:
 [<0000000040203b18>] on_each_cpu+0x58/0xa0
 [<000000004015aed8>] flush_tlb_all+0x108/0x1e8
 [<0000000040258270>] tlb_flush_mmu_tlbonly+0x48/0xa8
 [<0000000040259048>] tlb_finish_mmu+0x30/0x98
 [<0000000040263e5c>] exit_mmap+0x134/0x1b8
 [<0000000040182668>] mmput+0xc0/0x1a8
 [<0000000040188eec>] do_exit+0x334/0xce0
 [<000000004015d790>] die_if_kernel+0x1f8/0x2e0
 [<000000004015e610>] handle_interruption+0x9a8/0x9d0

INFO: rcu_sched self-detected stall on CPU
	3-...: (5978 ticks this GP) idle=ecb/140000000000001/0 softirq=709/709 fqs=6000 
	 (t=6000 jiffies g=-123 c=-124 q=4)
Task dump for CPU 1:
kworker/1:1H    R  running task        0   948      2 0x00000004
Workqueue: kblockd cfq_kick_queue
Backtrace:
 [<000000004015361c>] __schedule+0x264/0x5b8
 [<00000000401539bc>] schedule+0x4c/0xc8
 [<00000000401a29d0>] worker_thread+0x338/0x688
 [<00000000401aae84>] kthread+0x144/0x178
 [<0000000040149020>] end_fault_vector+0x20/0x28

Task dump for CPU 3:
systemd-udevd   R  running task        0   930    925 0x00000014
Backtrace:
 [<000000004015d560>] show_stack+0x20/0x38
 [<00000000401b95b4>] sched_show_task+0x134/0x1d0
 [<00000000401bc054>] dump_cpu_task+0x64/0x80
 [<00000000401e7584>] rcu_dump_cpu_stacks+0xf4/0x180
 [<00000000401ec644>] rcu_check_callbacks+0x5ac/0x9b8
 [<00000000401ef264>] update_process_times+0x74/0xd8
 [<000000004015e878>] timer_interrupt+0x1b0/0x210
 [<00000000401dc510>] handle_irq_event_percpu+0xa8/0x248
 [<00000000401e1e7c>] handle_percpu_irq+0xac/0xe8
 [<00000000401db794>] generic_handle_irq+0x4c/0x68
 [<000000004014b2cc>] call_on_stack+0x18/0x24

...

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:38:26 2018
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Subject: Re: [PATCH v3 06/17] arch: Set IORESOURCE_SYSTEM_RAM to System RAM
Date: Sun, 24 Jan 2016 19:00:57 +0100
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To: Toshi Kani <toshi.kani@hpe.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/52500>

Adding the respective arch MLs to CC, as an FYI.

On Tue, Jan 05, 2016 at 11:54:30AM -0700, Toshi Kani wrote:
> Set IORESOURCE_SYSTEM_RAM to 'flags' of resource ranges with
> "System RAM", "Kernel code", "Kernel data", and "Kernel bss".
> 
> Note that:
>  - IORESOURCE_SYSRAM (i.e. modifier bit) is set to 'flags'
>    when IORESOURCE_MEM is already set.  IORESOURCE_SYSTEM_RAM
>    is defined as (IORESOURCE_MEM|IORESOURCE_SYSRAM).
>  - Some archs do not set 'flags' for children nodes, such as
>    "Kernel code".  This patch does not change 'flags' in this
>    case.
> 
> Cc: linux-arch@vger.kernel.org
> Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
> ---
>  arch/arm/kernel/setup.c       |    6 +++---
>  arch/arm64/kernel/setup.c     |    6 +++---
>  arch/avr32/kernel/setup.c     |    6 +++---
>  arch/m32r/kernel/setup.c      |    4 ++--
>  arch/mips/kernel/setup.c      |   10 ++++++----
>  arch/parisc/mm/init.c         |    6 +++---
>  arch/powerpc/mm/mem.c         |    2 +-
>  arch/s390/kernel/setup.c      |    8 ++++----
>  arch/score/kernel/setup.c     |    2 +-
>  arch/sh/kernel/setup.c        |    8 ++++----
>  arch/sparc/mm/init_64.c       |    8 ++++----
>  arch/tile/kernel/setup.c      |   11 ++++++++---
>  arch/unicore32/kernel/setup.c |    6 +++---
>  13 files changed, 45 insertions(+), 38 deletions(-)
> 
> diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
> index 20edd34..ae44e09 100644
> --- a/arch/arm/kernel/setup.c
> +++ b/arch/arm/kernel/setup.c
> @@ -173,13 +173,13 @@ static struct resource mem_res[] = {
>  		.name = "Kernel code",
>  		.start = 0,
>  		.end = 0,
> -		.flags = IORESOURCE_MEM
> +		.flags = IORESOURCE_SYSTEM_RAM
>  	},
>  	{
>  		.name = "Kernel data",
>  		.start = 0,
>  		.end = 0,
> -		.flags = IORESOURCE_MEM
> +		.flags = IORESOURCE_SYSTEM_RAM
>  	}
>  };
>  
> @@ -781,7 +781,7 @@ static void __init request_standard_resources(const struct machine_desc *mdesc)
>  		res->name  = "System RAM";
>  		res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));
>  		res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1;
> -		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
> +		res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
>  
>  		request_resource(&iomem_resource, res);
>  
> diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
> index 8119479..450987d 100644
> --- a/arch/arm64/kernel/setup.c
> +++ b/arch/arm64/kernel/setup.c
> @@ -73,13 +73,13 @@ static struct resource mem_res[] = {
>  		.name = "Kernel code",
>  		.start = 0,
>  		.end = 0,
> -		.flags = IORESOURCE_MEM
> +		.flags = IORESOURCE_SYSTEM_RAM
>  	},
>  	{
>  		.name = "Kernel data",
>  		.start = 0,
>  		.end = 0,
> -		.flags = IORESOURCE_MEM
> +		.flags = IORESOURCE_SYSTEM_RAM
>  	}
>  };
>  
> @@ -210,7 +210,7 @@ static void __init request_standard_resources(void)
>  		res->name  = "System RAM";
>  		res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));
>  		res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1;
> -		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
> +		res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
>  
>  		request_resource(&iomem_resource, res);
>  
> diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c
> index 209ae5a..e692889 100644
> --- a/arch/avr32/kernel/setup.c
> +++ b/arch/avr32/kernel/setup.c
> @@ -49,13 +49,13 @@ static struct resource __initdata kernel_data = {
>  	.name	= "Kernel data",
>  	.start	= 0,
>  	.end	= 0,
> -	.flags	= IORESOURCE_MEM,
> +	.flags	= IORESOURCE_SYSTEM_RAM,
>  };
>  static struct resource __initdata kernel_code = {
>  	.name	= "Kernel code",
>  	.start	= 0,
>  	.end	= 0,
> -	.flags	= IORESOURCE_MEM,
> +	.flags	= IORESOURCE_SYSTEM_RAM,
>  	.sibling = &kernel_data,
>  };
>  
> @@ -134,7 +134,7 @@ add_physical_memory(resource_size_t start, resource_size_t end)
>  	new->start = start;
>  	new->end = end;
>  	new->name = "System RAM";
> -	new->flags = IORESOURCE_MEM;
> +	new->flags = IORESOURCE_SYSTEM_RAM;
>  
>  	*pprev = new;
>  }
> diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c
> index 0392112..5f62ff0 100644
> --- a/arch/m32r/kernel/setup.c
> +++ b/arch/m32r/kernel/setup.c
> @@ -70,14 +70,14 @@ static struct resource data_resource = {
>  	.name   = "Kernel data",
>  	.start  = 0,
>  	.end    = 0,
> -	.flags  = IORESOURCE_BUSY | IORESOURCE_MEM
> +	.flags  = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
>  };
>  
>  static struct resource code_resource = {
>  	.name   = "Kernel code",
>  	.start  = 0,
>  	.end    = 0,
> -	.flags  = IORESOURCE_BUSY | IORESOURCE_MEM
> +	.flags  = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
>  };
>  
>  unsigned long memory_start;
> diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
> index 66aac55..c385af1 100644
> --- a/arch/mips/kernel/setup.c
> +++ b/arch/mips/kernel/setup.c
> @@ -732,21 +732,23 @@ static void __init resource_init(void)
>  			end = HIGHMEM_START - 1;
>  
>  		res = alloc_bootmem(sizeof(struct resource));
> +
> +		res->start = start;
> +		res->end = end;
> +		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
> +
>  		switch (boot_mem_map.map[i].type) {
>  		case BOOT_MEM_RAM:
>  		case BOOT_MEM_INIT_RAM:
>  		case BOOT_MEM_ROM_DATA:
>  			res->name = "System RAM";
> +			res->flags |= IORESOURCE_SYSRAM;
>  			break;
>  		case BOOT_MEM_RESERVED:
>  		default:
>  			res->name = "reserved";
>  		}
>  
> -		res->start = start;
> -		res->end = end;
> -
> -		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
>  		request_resource(&iomem_resource, res);
>  
>  		/*
> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> index 1b366c4..3c07d6b 100644
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -55,12 +55,12 @@ signed char pfnnid_map[PFNNID_MAP_MAX] __read_mostly;
>  
>  static struct resource data_resource = {
>  	.name	= "Kernel data",
> -	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM,
> +	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
>  };
>  
>  static struct resource code_resource = {
>  	.name	= "Kernel code",
> -	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM,
> +	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
>  };
>  
>  static struct resource pdcdata_resource = {
> @@ -201,7 +201,7 @@ static void __init setup_bootmem(void)
>  		res->name = "System RAM";
>  		res->start = pmem_ranges[i].start_pfn << PAGE_SHIFT;
>  		res->end = res->start + (pmem_ranges[i].pages << PAGE_SHIFT)-1;
> -		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
> +		res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
>  		request_resource(&iomem_resource, res);
>  	}
>  
> diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
> index 22d94c3..e78a2b7 100644
> --- a/arch/powerpc/mm/mem.c
> +++ b/arch/powerpc/mm/mem.c
> @@ -541,7 +541,7 @@ static int __init add_system_ram_resources(void)
>  			res->name = "System RAM";
>  			res->start = base;
>  			res->end = base + size - 1;
> -			res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
> +			res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
>  			WARN_ON(request_resource(&iomem_resource, res) < 0);
>  		}
>  	}
> diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
> index c837bca..b65a883 100644
> --- a/arch/s390/kernel/setup.c
> +++ b/arch/s390/kernel/setup.c
> @@ -376,17 +376,17 @@ static void __init setup_lowcore(void)
>  
>  static struct resource code_resource = {
>  	.name  = "Kernel code",
> -	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
> +	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
>  };
>  
>  static struct resource data_resource = {
>  	.name = "Kernel data",
> -	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
> +	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
>  };
>  
>  static struct resource bss_resource = {
>  	.name = "Kernel bss",
> -	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
> +	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
>  };
>  
>  static struct resource __initdata *standard_resources[] = {
> @@ -410,7 +410,7 @@ static void __init setup_resources(void)
>  
>  	for_each_memblock(memory, reg) {
>  		res = alloc_bootmem_low(sizeof(*res));
> -		res->flags = IORESOURCE_BUSY | IORESOURCE_MEM;
> +		res->flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM;
>  
>  		res->name = "System RAM";
>  		res->start = reg->base;
> diff --git a/arch/score/kernel/setup.c b/arch/score/kernel/setup.c
> index b48459a..f3a0649 100644
> --- a/arch/score/kernel/setup.c
> +++ b/arch/score/kernel/setup.c
> @@ -101,7 +101,7 @@ static void __init resource_init(void)
>  	res->name = "System RAM";
>  	res->start = MEMORY_START;
>  	res->end = MEMORY_START + MEMORY_SIZE - 1;
> -	res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
> +	res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
>  	request_resource(&iomem_resource, res);
>  
>  	request_resource(res, &code_resource);
> diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
> index de19cfa..3f1c18b 100644
> --- a/arch/sh/kernel/setup.c
> +++ b/arch/sh/kernel/setup.c
> @@ -78,17 +78,17 @@ static char __initdata command_line[COMMAND_LINE_SIZE] = { 0, };
>  
>  static struct resource code_resource = {
>  	.name = "Kernel code",
> -	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
> +	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
>  };
>  
>  static struct resource data_resource = {
>  	.name = "Kernel data",
> -	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
> +	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
>  };
>  
>  static struct resource bss_resource = {
>  	.name	= "Kernel bss",
> -	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM,
> +	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
>  };
>  
>  unsigned long memory_start;
> @@ -202,7 +202,7 @@ void __init __add_active_range(unsigned int nid, unsigned long start_pfn,
>  	res->name = "System RAM";
>  	res->start = start;
>  	res->end = end - 1;
> -	res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
> +	res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
>  
>  	if (request_resource(&iomem_resource, res)) {
>  		pr_err("unable to request memory_resource 0x%lx 0x%lx\n",
> diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
> index 3025bd5..a02d43d 100644
> --- a/arch/sparc/mm/init_64.c
> +++ b/arch/sparc/mm/init_64.c
> @@ -2862,17 +2862,17 @@ void hugetlb_setup(struct pt_regs *regs)
>  
>  static struct resource code_resource = {
>  	.name	= "Kernel code",
> -	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
> +	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
>  };
>  
>  static struct resource data_resource = {
>  	.name	= "Kernel data",
> -	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
> +	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
>  };
>  
>  static struct resource bss_resource = {
>  	.name	= "Kernel bss",
> -	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
> +	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
>  };
>  
>  static inline resource_size_t compute_kern_paddr(void *addr)
> @@ -2908,7 +2908,7 @@ static int __init report_memory(void)
>  		res->name = "System RAM";
>  		res->start = pavail[i].phys_addr;
>  		res->end = pavail[i].phys_addr + pavail[i].reg_size - 1;
> -		res->flags = IORESOURCE_BUSY | IORESOURCE_MEM;
> +		res->flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM;
>  
>  		if (insert_resource(&iomem_resource, res) < 0) {
>  			pr_warn("Resource insertion failed.\n");
> diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
> index 6b755d1..6606fe2 100644
> --- a/arch/tile/kernel/setup.c
> +++ b/arch/tile/kernel/setup.c
> @@ -1632,14 +1632,14 @@ static struct resource data_resource = {
>  	.name	= "Kernel data",
>  	.start	= 0,
>  	.end	= 0,
> -	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
> +	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
>  };
>  
>  static struct resource code_resource = {
>  	.name	= "Kernel code",
>  	.start	= 0,
>  	.end	= 0,
> -	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
> +	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
>  };
>  
>  /*
> @@ -1673,10 +1673,15 @@ insert_ram_resource(u64 start_pfn, u64 end_pfn, bool reserved)
>  		kzalloc(sizeof(struct resource), GFP_ATOMIC);
>  	if (!res)
>  		return NULL;
> -	res->name = reserved ? "Reserved" : "System RAM";
>  	res->start = start_pfn << PAGE_SHIFT;
>  	res->end = (end_pfn << PAGE_SHIFT) - 1;
>  	res->flags = IORESOURCE_BUSY | IORESOURCE_MEM;
> +	if (reserved) {
> +		res->name = "Reserved";
> +	} else {
> +		res->name = "System RAM";
> +		res->flags |= IORESOURCE_SYSRAM;
> +	}
>  	if (insert_resource(&iomem_resource, res)) {
>  		kfree(res);
>  		return NULL;
> diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
> index 3fa317f..c2bffa5 100644
> --- a/arch/unicore32/kernel/setup.c
> +++ b/arch/unicore32/kernel/setup.c
> @@ -72,13 +72,13 @@ static struct resource mem_res[] = {
>  		.name = "Kernel code",
>  		.start = 0,
>  		.end = 0,
> -		.flags = IORESOURCE_MEM
> +		.flags = IORESOURCE_SYSTEM_RAM
>  	},
>  	{
>  		.name = "Kernel data",
>  		.start = 0,
>  		.end = 0,
> -		.flags = IORESOURCE_MEM
> +		.flags = IORESOURCE_SYSTEM_RAM
>  	}
>  };
>  
> @@ -211,7 +211,7 @@ request_standard_resources(struct meminfo *mi)
>  		res->name  = "System RAM";
>  		res->start = mi->bank[i].start;
>  		res->end   = mi->bank[i].start + mi->bank[i].size - 1;
> -		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
> +		res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
>  
>  		request_resource(&iomem_resource, res);
>  
> 

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.



From - Thu Nov 08 21:38:26 2018
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X-Mozilla-Keys:                                                                                 
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From: Borislav Petkov <bp@alien8.de>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.kernel.kexec,gmane.linux.kernel.samsung-soc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.mm,gmane.linux.acpi.devel,gmane.linux.kernel
Subject: Re: [PATCH v3 00/17] Enhance iomem search interfaces and support
 EINJ to NVDIMM
Date: Mon, 25 Jan 2016 20:18:04 +0100
Lines: 49
Approved: news@gmane.org
Message-ID: <20160125191804.GE14030@pd.tnic>
References: <1452020068-26492-1-git-send-email-toshi.kani@hpe.com>
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Cc: akpm@linux-foundation.org, torvalds@linux-foundation.org,
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To: Toshi Kani <toshi.kani@hpe.com>
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On Tue, Jan 05, 2016 at 11:54:28AM -0700, Toshi Kani wrote:
> This patch-set enhances the iomem table and its search interfacs, and
> then changes EINJ to support NVDIMM.
> 
>  - Patches 1-2 add a new System RAM type, IORESOURCE_SYSTEM_RAM, and
>    make the iomem search interfaces work with resource flags with
>    modifier bits set.  IORESOURCE_SYSTEM_RAM has IORESOURCE_MEM bit set
>    for backward compatibility.
> 
>  - Patch 3 adds a new field, I/O resource descriptor, into struct resource.
>    Drivers can assign their unique descritor to a range when they support
>    the iomem search interfaces.
> 
>  - Patches 4-9 changes initializations of resource entries.  They set
>    the System RAM type to System RAM ranges, set I/O resource descriptors
>    to the regions targeted by the iomem search interfaces, and change
>    to call kzalloc() where kmalloc() is used to allocate struct resource
>    ranges.
> 
>  - Patches 10-14 extend the iomem interfaces to check System RAM ranges
>    with the System RAM type and the I/O resource descriptor.
> 
>  - Patch 15-16 remove deprecated walk_iomem_res().
> 
>  - Patch 17 changes the EINJ driver to allow injecting a memory error
>    to NVDIMM.

Ok, all applied ontop of 4.5-rc1.

You could take a look if everything's still fine and I haven't botched
anything:

http://git.kernel.org/cgit/linux/kernel/git/bp/bp.git/log/?h=tip-mm

I'll let the build bot chew on it and then test it here and send it out
again to everyone on CC so that people don't act surprised.

Thanks for this cleanup, code looks much better now!

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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From - Thu Nov 08 21:38:26 2018
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From: Toshi Kani <toshi.kani@hpe.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.kernel.kexec,gmane.linux.kernel.samsung-soc,gmane.linux.kernel.cross-arch,gmane.linux.acpi.devel,gmane.linux.kernel
Subject: Re: [PATCH v3 00/17] Enhance iomem search interfaces and support
 EINJ to NVDIMM
Date: Mon, 25 Jan 2016 14:34:21 -0700
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Cc: akpm@linux-foundation.org, torvalds@linux-foundation.org, 
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To: Borislav Petkov <bp@alien8.de>
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On Mon, 2016-01-25 at 20:18 +0100, Borislav Petkov wrote:
> On Tue, Jan 05, 2016 at 11:54:28AM -0700, Toshi Kani wrote:
> > This patch-set enhances the iomem table and its search interfacs, and
> > then changes EINJ to support NVDIMM.
> > 
 :
> 
> Ok, all applied ontop of 4.5-rc1.
> 
> You could take a look if everything's still fine and I haven't botched
> anything:
> 
> http://git.kernel.org/cgit/linux/kernel/git/bp/bp.git/log/?h=tip-mm

I verified the patches and tested the kernel in the tree.  All look good.

> I'll let the build bot chew on it and then test it here and send it out
> again to everyone on CC so that people don't act surprised.

Sounds great.

> Thanks for this cleanup, code looks much better now!

Thanks!
-Toshi

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From - Thu Nov 08 21:38:26 2018
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Subject: Re: [PATCH v3 00/17] Enhance iomem search interfaces and support
 EINJ to NVDIMM
Date: Mon, 25 Jan 2016 22:49:56 +0100
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On Mon, Jan 25, 2016 at 02:34:21PM -0700, Toshi Kani wrote:
> I verified the patches and tested the kernel in the tree. All look
> good.

Thanks!

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26430>

A lot of code currently abuses is_compat_task to determine this.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 include/linux/compat.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/include/linux/compat.h b/include/linux/compat.h
index a76c9172b2eb..f911bcec618f 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -5,6 +5,8 @@
  * syscall compatibility layer.
  */
 
+#include <linux/types.h>
+
 #ifdef CONFIG_COMPAT
 
 #include <linux/stat.h>
@@ -713,9 +715,22 @@ asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid,
 
 asmlinkage long compat_sys_fanotify_mark(int, unsigned int, __u32, __u32,
 					    int, const char __user *);
+
+/*
+ * For most but not all architectures, "am I in a compat syscall?" and
+ * "am I a compat task?" are the same question.  For architectures on which
+ * they aren't the same question, arch code can override in_compat_syscall.
+ */
+
+#ifndef in_compat_syscall
+static inline bool in_compat_syscall(void) { return is_compat_task(); }
+#endif
+
 #else
 
 #define is_compat_task() (0)
+static inline bool in_compat_syscall(void) { return false; }
 
 #endif /* CONFIG_COMPAT */
+
 #endif /* _LINUX_COMPAT_H */
-- 
2.5.0

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.sparc
Subject: [PATCH v2 03/16] sparc/syscall: Fix syscall_get_arch
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Sparc's syscall_get_arch was buggy: it returned the task arch, not the
syscall arch.  This could confuse seccomp and audit.

I don't think this is as bad for seccomp as it looks: sparc's
32-bit and 64-bit syscalls are numbered the same.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 arch/sparc/include/asm/syscall.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h
index 49f71fd5b56e..1757cd6c521b 100644
--- a/arch/sparc/include/asm/syscall.h
+++ b/arch/sparc/include/asm/syscall.h
@@ -3,6 +3,7 @@
 
 #include <uapi/linux/audit.h>
 #include <linux/kernel.h>
+#include <linux/compat.h>
 #include <linux/sched.h>
 #include <asm/ptrace.h>
 #include <asm/thread_info.h>
@@ -128,7 +129,13 @@ static inline void syscall_set_arguments(struct task_struct *task,
 
 static inline int syscall_get_arch(void)
 {
-	return is_32bit_task() ? AUDIT_ARCH_SPARC : AUDIT_ARCH_SPARC64;
+#if defined(CONFIG_SPARC64) && defined(CONFIG_COMPAT)
+	return in_compat_syscall() ? AUDIT_ARCH_SPARC : AUDIT_ARCH_SPARC64;
+#elif defined(CONFIG_SPARC64)
+	return AUDIT_ARCH_SPARC64;
+#else
+	return AUDIT_ARCH_SPARC;
+#endif
 }
 
 #endif /* __ASM_SPARC_SYSCALL_H */
-- 
2.5.0

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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/30470>

On sparc64 compat-enabled kernels, any task can make 32-bit and
64-bit syscalls.  is_compat_task returns true in 32-bit tasks, which
does not necessarily imply that the current syscall is 32-bit.

Provide an in_compat_syscall implementation that checks whether the
current syscall is compat.

As far as I know, sparc is the only architecture on which
is_compat_task checks the compat status of the task and on which the
compat status of a syscall can differ from the compat status of the
task.  On x86, is_compat_task checks the syscall type, not the task
type.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 arch/sparc/include/asm/compat.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index 830502fe62b4..5467404857fc 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -307,4 +307,10 @@ static inline int is_compat_task(void)
 	return test_thread_flag(TIF_32BIT);
 }
 
+static inline bool in_compat_syscall(void)
+{
+	return pt_regs_trap_type(current_pt_regs()) == 0x110;
+}
+#define in_compat_syscall in_compat_syscall
+
 #endif /* _ASM_SPARC64_COMPAT_H */
-- 
2.5.0


From - Thu Nov 08 21:38:27 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.sparc
Subject: [PATCH v2 04/16] seccomp: Check in_compat_syscall, not is_compat_task, in strict mode
Date: Mon, 25 Jan 2016 14:24:18 -0800
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Approved: news@gmane.org
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	linux-arch <linux-arch@vger.kernel.org>,
	David Miller <davem@davemloft.net>,
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	Chris Metcalf <cmetcalf@ezchip.com>,
	linux-parisc@vger.kernel.org, linux-mips@linux-mips.org,
	sparclinux@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26433>

Seccomp wants to know the syscall bitness, not the caller task
bitness, when it selects the syscall whitelist.

As far as I know, this makes no difference on any architecture, so
it's not a security problem.  (It generates identical code
everywhere except sparc, and, on sparc, the syscall numbering is the
same for both ABIs.)

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 kernel/seccomp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index 580ac2d4024f..26858fa43a60 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -395,7 +395,7 @@ seccomp_prepare_user_filter(const char __user *user_filter)
 	struct seccomp_filter *filter = ERR_PTR(-EFAULT);
 
 #ifdef CONFIG_COMPAT
-	if (is_compat_task()) {
+	if (in_compat_syscall()) {
 		struct compat_sock_fprog fprog32;
 		if (copy_from_user(&fprog32, user_filter, sizeof(fprog32)))
 			goto out;
@@ -529,7 +529,7 @@ static void __secure_computing_strict(int this_syscall)
 {
 	int *syscall_whitelist = mode1_syscalls;
 #ifdef CONFIG_COMPAT
-	if (is_compat_task())
+	if (in_compat_syscall())
 		syscall_whitelist = mode1_syscalls_32;
 #endif
 	do {
-- 
2.5.0

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From - Thu Nov 08 21:38:27 2018
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Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.mips.general
Subject: [PATCH v2 14/16] input: Redefine INPUT_COMPAT_TEST as in_compat_syscall()
Date: Mon, 25 Jan 2016 14:24:28 -0800
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	Al Viro <viro@zeniv.linux.org.uk>,
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	linux-arch <linux-arch@vger.kernel.org>,
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	Chris Metcalf <cmetcalf@ezchip.com>,
	linux-parisc@vger.kernel.org, linux-mips@linux-mips.org,
	sparclinux@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
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The input compat code should work like all other compat code: for
32-bit syscalls, use the 32-bit ABI and for 64-bit syscalls, use the
64-bit ABI.  We have a helper for that (in_compat_syscall()): just
use it.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 drivers/input/input-compat.h | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h
index 148f66fe3205..0f25878d5fa2 100644
--- a/drivers/input/input-compat.h
+++ b/drivers/input/input-compat.h
@@ -17,17 +17,7 @@
 
 #ifdef CONFIG_COMPAT
 
-/* Note to the author of this code: did it ever occur to
-   you why the ifdefs are needed? Think about it again. -AK */
-#if defined(CONFIG_X86_64) || defined(CONFIG_TILE)
-#  define INPUT_COMPAT_TEST is_compat_task()
-#elif defined(CONFIG_S390)
-#  define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT)
-#elif defined(CONFIG_MIPS)
-#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT_ADDR)
-#else
-#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT)
-#endif
+#define INPUT_COMPAT_TEST in_compat_syscall()
 
 struct input_event_compat {
 	struct compat_timeval time;
-- 
2.5.0

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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v2 00/16] compat: Introduce and use in_compat_syscall
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Cc: Andy Lutomirski <luto@kernel.org>,
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        Chris Metcalf <cmetcalf@ezchip.com>,
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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/52522>

Linux distinguishes compat syscalls from normal syscalls in two ways.
First, compat syscalls use separate entry points.  This is entirely
sensible.  Second, code paths that are common to compat and non-compat
syscalls can query is_compat_task() to check whether they are being
called from a compat syscall or not.

The latter is problematic.  Two architectures explicitly allow tasks
to issue syscalls for which the task bitness and the syscall bitness
don't match.  On x86, is_compat_task returns true if the current
syscall is a compat syscall, which is a different condition from being
a compat task.  This oddity is confusing.  On SPARC, is_compat_task
does what it sounds like, which means that user programs can cause
is_compat_task to fail to match the syscall entry used.  That could
expose bugs.

This series introduces in_compat_syscall() as a new way to query the
syscall type.  On SPARC, it really does check the syscall bitness.
Later patches change all of the non arch-specific is_compat_task
callers to use in_compat_syscall.  The last patch removes
is_compat_task on x86, which will prevent this confusion from
recurring.

I've cc'd the maintainers of all archs that support compat.  If your
arch makes it possible for a malicious user process to invoke a compat
syscall in a nominally 64-bit task or vice versa and your arch is not
x86 or SPARC, please tell me.

Davem, can you check whether I handled SPARC correctly?

Andy Lutomirski (16):
  compat: Add in_compat_syscall to ask whether we're in a compat syscall
  sparc/compat: Provide an accurate in_compat_syscall implementation
  sparc/syscall: Fix syscall_get_arch
  seccomp: Check in_compat_syscall, not is_compat_task, in strict mode
  ptrace: in PEEK_SIGINFO, check syscall bitness, not task bitness
  auditsc: For seccomp events, log syscall compat state using
    in_compat_syscall
  staging/lustre: Switch from is_compat_task to in_compat_syscall
  ext4: In ext4_dir_llseek, check syscall bitness directly
  net/sctp: Use in_compat_syscall for sctp_getsockopt_connectx3
  net/xfrm_user: Use in_compat_syscall to deny compat syscalls
  firewire: Use in_compat_syscall to check ioctl compatness
  efivars: Use in_compat_syscall to check for compat callers
  amdkfd: Use in_compat_syscall to check open() caller type
  input: Redefine INPUT_COMPAT_TEST as in_compat_syscall()
  uhid: Check write() bitness using in_compat_syscall
  x86/compat: Remove is_compat_task

 arch/sparc/include/asm/compat.h                      |  6 ++++++
 arch/sparc/include/asm/syscall.h                     |  9 ++++++++-
 arch/x86/include/asm/compat.h                        |  3 ++-
 arch/x86/include/asm/ftrace.h                        |  2 +-
 arch/x86/kernel/process_64.c                         |  2 +-
 drivers/firewire/core-cdev.c                         |  4 ++--
 drivers/firmware/efi/efivars.c                       |  2 +-
 drivers/gpu/drm/amd/amdkfd/kfd_chardev.c             |  2 +-
 drivers/gpu/drm/amd/amdkfd/kfd_process.c             |  2 +-
 drivers/hid/uhid.c                                   |  2 +-
 drivers/input/input-compat.h                         | 12 +-----------
 drivers/staging/lustre/lustre/llite/llite_internal.h |  2 +-
 fs/ext4/dir.c                                        |  2 +-
 include/linux/compat.h                               | 15 +++++++++++++++
 kernel/auditsc.c                                     |  4 ++--
 kernel/ptrace.c                                      |  2 +-
 kernel/seccomp.c                                     |  4 ++--
 net/sctp/socket.c                                    |  2 +-
 net/xfrm/xfrm_user.c                                 |  2 +-
 19 files changed, 49 insertions(+), 30 deletions(-)

-- 
2.5.0




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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v2 05/16] ptrace: in PEEK_SIGINFO, check syscall bitness, not task bitness
Date: Mon, 25 Jan 2016 14:24:19 -0800
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To: Andrew Morton <akpm@linux-foundation.org>
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Users of the 32-bit ptrace() ABI expect the full 32-bit ABI.
siginfo translation should check ptrace() ABI, not caller task ABI.

This is an ABI change on SPARC.  Let's hope that no one relied on
the old buggy ABI.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 kernel/ptrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 2341efe7fe02..c79b91d09e35 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -681,7 +681,7 @@ static int ptrace_peek_siginfo(struct task_struct *child,
 			break;
 
 #ifdef CONFIG_COMPAT
-		if (unlikely(is_compat_task())) {
+		if (unlikely(in_compat_syscall())) {
 			compat_siginfo_t __user *uinfo = compat_ptr(data);
 
 			if (copy_siginfo_to_user32(uinfo, &info) ||
-- 
2.5.0




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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v2 06/16] auditsc: For seccomp events, log syscall compat state using in_compat_syscall
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To: Andrew Morton <akpm@linux-foundation.org>
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Except on SPARC, this is what the code always did.  SPARC compat
seccomp was buggy, although the impact of the bug was limited
because SPARC 32-bit and 64-bit syscall numbers are the same.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 kernel/auditsc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 195ffaee50b9..7d0e3cf8abe1 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -2412,8 +2412,8 @@ void __audit_seccomp(unsigned long syscall, long signr, int code)
 		return;
 	audit_log_task(ab);
 	audit_log_format(ab, " sig=%ld arch=%x syscall=%ld compat=%d ip=0x%lx code=0x%x",
-			 signr, syscall_get_arch(), syscall, is_compat_task(),
-			 KSTK_EIP(current), code);
+			 signr, syscall_get_arch(), syscall,
+			 in_compat_syscall(), KSTK_EIP(current), code);
 	audit_log_end(ab);
 }
 
-- 
2.5.0




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Subject: [PATCH v2 16/16] x86/compat: Remove is_compat_task
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To: Andrew Morton <akpm@linux-foundation.org>
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x86's is_compat_task always checked the current syscall type, not
the task type.  It has no non-arch users any more, so just remove it
to avoid confusion.

On x86, nothing should really be checking the task ABI.  There are
legitimate users for the syscall ABI and for the mm ABI.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 arch/x86/include/asm/compat.h | 3 ++-
 arch/x86/include/asm/ftrace.h | 2 +-
 arch/x86/kernel/process_64.c  | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index acdee09228b3..ebb102e1bbc7 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -316,9 +316,10 @@ static inline bool is_x32_task(void)
 	return false;
 }
 
-static inline bool is_compat_task(void)
+static inline bool in_compat_syscall(void)
 {
 	return is_ia32_task() || is_x32_task();
 }
+#define in_compat_syscall in_compat_syscall	/* override the generic impl */
 
 #endif /* _ASM_X86_COMPAT_H */
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index 24938852db30..21b66dbf3601 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -58,7 +58,7 @@ int ftrace_int3_handler(struct pt_regs *regs);
 #define ARCH_TRACE_IGNORE_COMPAT_SYSCALLS 1
 static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs)
 {
-	if (is_compat_task())
+	if (in_compat_syscall())
 		return true;
 	return false;
 }
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index b9d99e0f82c4..71a18a22ae2f 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -476,7 +476,7 @@ void set_personality_ia32(bool x32)
 		if (current->mm)
 			current->mm->context.ia32_compat = TIF_X32;
 		current->personality &= ~READ_IMPLIES_EXEC;
-		/* is_compat_task() uses the presence of the x32
+		/* in_compat_syscall() uses the presence of the x32
 		   syscall bit flag to determine compat status */
 		current_thread_info()->status &= ~TS_COMPAT;
 	} else {
-- 
2.5.0

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From - Thu Nov 08 21:38:27 2018
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v2 07/16] staging/lustre: Switch from is_compat_task to in_compat_syscall
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        linux-arch <linux-arch@vger.kernel.org>,
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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/52527>

AFAICT, lustre is trying to determine syscall bitness.  Use the new
accessor.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 drivers/staging/lustre/lustre/llite/llite_internal.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
index 845e992ca5fc..373470410e05 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -647,7 +647,7 @@ static inline int ll_need_32bit_api(struct ll_sb_info *sbi)
 #if BITS_PER_LONG == 32
 	return 1;
 #elif defined(CONFIG_COMPAT)
-	return unlikely(is_compat_task() || (sbi->ll_flags & LL_SBI_32BIT_API));
+	return unlikely(in_compat_syscall() || (sbi->ll_flags & LL_SBI_32BIT_API));
 #else
 	return unlikely(sbi->ll_flags & LL_SBI_32BIT_API);
 #endif
-- 
2.5.0




From - Thu Nov 08 21:38:27 2018
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v2 08/16] ext4: In ext4_dir_llseek, check syscall bitness directly
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To: Andrew Morton <akpm@linux-foundation.org>
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ext4 treats directory offsets differently for 32-bit and 64-bit
callers.  Check the caller type using in_compat_syscall, not
is_compat_task.  This changes behavior on SPARC slightly.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 fs/ext4/dir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 1d1bca74f844..6395456edea6 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -276,7 +276,7 @@ errout:
 static inline int is_32bit_api(void)
 {
 #ifdef CONFIG_COMPAT
-	return is_compat_task();
+	return in_compat_syscall();
 #else
 	return (BITS_PER_LONG == 32);
 #endif
-- 
2.5.0




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Subject: [PATCH v2 15/16] uhid: Check write() bitness using in_compat_syscall
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To: Andrew Morton <akpm@linux-foundation.org>
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uhid changes the format expected in write() depending on bitness.
It should check the syscall bitness directly.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 drivers/hid/uhid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index e094c572b86e..16b6f11a0700 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -384,7 +384,7 @@ struct uhid_create_req_compat {
 static int uhid_event_from_user(const char __user *buffer, size_t len,
 				struct uhid_event *event)
 {
-	if (is_compat_task()) {
+	if (in_compat_syscall()) {
 		u32 type;
 
 		if (get_user(type, buffer))
-- 
2.5.0

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From - Thu Nov 08 21:38:28 2018
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v2 09/16] net/sctp: Use in_compat_syscall for sctp_getsockopt_connectx3
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To: Andrew Morton <akpm@linux-foundation.org>
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SCTP unfortunately has a different ABI for SCTP_SOCKOPT_CONNECTX3
for 32-bit and 64-bit callers.  Use in_compat_syscall to correctly
distinguish them on all architectures.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 net/sctp/socket.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 9bb80ec4c08f..20ab6b2bbbb9 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1389,7 +1389,7 @@ static int sctp_getsockopt_connectx3(struct sock *sk, int len,
 	int err = 0;
 
 #ifdef CONFIG_COMPAT
-	if (is_compat_task()) {
+	if (in_compat_syscall()) {
 		struct compat_sctp_getaddrs_old param32;
 
 		if (len < sizeof(param32))
-- 
2.5.0




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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/22246>

amdkfd wants to know syscall type, not task type.  Check directly.

Unfortunately, amdkfd is making nasty assumptions that a process'
bitness is a well-defined constant thing.  This isn't the case on
x86.  I don't know how much this matters, but this patch has no
effect on generated code on x86, so amdkfd is equally broken with
and without this patch.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 2 +-
 drivers/gpu/drm/amd/amdkfd/kfd_process.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index d2b49c026cf6..07ac724e3ec9 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -107,7 +107,7 @@ static int kfd_open(struct inode *inode, struct file *filep)
 	if (iminor(inode) != 0)
 		return -ENODEV;
 
-	is_32bit_user_mode = is_compat_task();
+	is_32bit_user_mode = in_compat_syscall();
 
 	if (is_32bit_user_mode == true) {
 		dev_warn(kfd_device,
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index 9be007081b72..fd1a90a0f435 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -311,7 +311,7 @@ static struct kfd_process *create_process(const struct task_struct *thread)
 		goto err_process_pqm_init;
 
 	/* init process apertures*/
-	process->is_32bit_user_mode = is_compat_task();
+	process->is_32bit_user_mode = in_compat_syscall();
 	if (kfd_init_apertures(process) != 0)
 		goto err_init_apretures;
 
-- 
2.5.0

--
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v2 10/16] net/xfrm_user: Use in_compat_syscall to deny compat syscalls
Date: Mon, 25 Jan 2016 14:24:24 -0800
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To: Andrew Morton <akpm@linux-foundation.org>
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The code wants to prevent compat code from receiving messages.  Use
in_compat_syscall for this.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 net/xfrm/xfrm_user.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 805681a7d356..2cc7af858c6f 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -2449,7 +2449,7 @@ static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 	int type, err;
 
 #ifdef CONFIG_COMPAT
-	if (is_compat_task())
+	if (in_compat_syscall())
 		return -ENOTSUPP;
 #endif
 
-- 
2.5.0




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Subject: [PATCH v2 12/16] efivars: Use in_compat_syscall to check for compat callers
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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/30483>

This should make no difference on any architecture, as x86's
historical is_compat_task behavior really did check whether the
calling syscall was a compat syscall.  x86's is_compat_task is going
away, though.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 drivers/firmware/efi/efivars.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
index 756eca8c4cf8..21c3b2016b2d 100644
--- a/drivers/firmware/efi/efivars.c
+++ b/drivers/firmware/efi/efivars.c
@@ -231,7 +231,7 @@ sanity_check(struct efi_variable *var, efi_char16_t *name, efi_guid_t vendor,
 
 static inline bool is_compat(void)
 {
-	if (IS_ENABLED(CONFIG_COMPAT) && is_compat_task())
+	if (IS_ENABLED(CONFIG_COMPAT) && in_compat_syscall())
 		return true;
 
 	return false;
-- 
2.5.0


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Subject: [PATCH v2 11/16] firewire: Use in_compat_syscall to check ioctl compatness
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Firewire was using is_compat_task to check whether it was in a
compat ioctl or a non-compat ioctl.  Use is_compat_syscall instead
so it works properly on all architectures.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 drivers/firewire/core-cdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index 36a7c2d89a01..aee149bdf4c0 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -221,7 +221,7 @@ struct inbound_phy_packet_event {
 #ifdef CONFIG_COMPAT
 static void __user *u64_to_uptr(u64 value)
 {
-	if (is_compat_task())
+	if (in_compat_syscall())
 		return compat_ptr(value);
 	else
 		return (void __user *)(unsigned long)value;
@@ -229,7 +229,7 @@ static void __user *u64_to_uptr(u64 value)
 
 static u64 uptr_to_u64(void __user *ptr)
 {
-	if (is_compat_task())
+	if (in_compat_syscall())
 		return ptr_to_compat(ptr);
 	else
 		return (u64)(unsigned long)ptr;
-- 
2.5.0




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From: Andy Lutomirski <luto@kernel.org>
Date: Mon, 25 Jan 2016 14:24:16 -0800

> On sparc64 compat-enabled kernels, any task can make 32-bit and
> 64-bit syscalls.  is_compat_task returns true in 32-bit tasks, which
> does not necessarily imply that the current syscall is 32-bit.
> 
> Provide an in_compat_syscall implementation that checks whether the
> current syscall is compat.
> 
> As far as I know, sparc is the only architecture on which
> is_compat_task checks the compat status of the task and on which the
> compat status of a syscall can differ from the compat status of the
> task.  On x86, is_compat_task checks the syscall type, not the task
> type.
> 
> Signed-off-by: Andy Lutomirski <luto@kernel.org>

Acked-by: David S. Miller <davem@davemloft.net>
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From: Sam Ravnborg <sam@ravnborg.org>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.mips.general
Subject: Re: [PATCH v2 02/16] sparc/compat: Provide an accurate
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To: Andy Lutomirski <luto@kernel.org>
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On Mon, Jan 25, 2016 at 02:24:16PM -0800, Andy Lutomirski wrote:
> On sparc64 compat-enabled kernels, any task can make 32-bit and
> 64-bit syscalls.  is_compat_task returns true in 32-bit tasks, which
> does not necessarily imply that the current syscall is 32-bit.
> 
> Provide an in_compat_syscall implementation that checks whether the
> current syscall is compat.
> 
> As far as I know, sparc is the only architecture on which
> is_compat_task checks the compat status of the task and on which the
> compat status of a syscall can differ from the compat status of the
> task.  On x86, is_compat_task checks the syscall type, not the task
> type.
> 
> Signed-off-by: Andy Lutomirski <luto@kernel.org>
> ---
>  arch/sparc/include/asm/compat.h | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
> index 830502fe62b4..5467404857fc 100644
> --- a/arch/sparc/include/asm/compat.h
> +++ b/arch/sparc/include/asm/compat.h
> @@ -307,4 +307,10 @@ static inline int is_compat_task(void)
>  	return test_thread_flag(TIF_32BIT);
>  }
>  
> +static inline bool in_compat_syscall(void)
> +{
> +	return pt_regs_trap_type(current_pt_regs()) == 0x110;
Could you please add a comment about where 0x110 comes from.
I at least failed to track this down.

	Sam
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Subject: Re: [PATCH v2 02/16] sparc/compat: Provide an accurate
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From: Sam Ravnborg <sam@ravnborg.org>
Date: Tue, 26 Jan 2016 07:29:51 +0100

> Could you please add a comment about where 0x110 comes from.
> I at least failed to track this down.

Frankly I'm fine with this.  Someone who understands sparc64 can look
at the trap table around entry 0x110 and see:

tl0_resv10e:	BTRAP(0x10e) BTRAP(0x10f)
tl0_linux32:	LINUX_32BIT_SYSCALL_TRAP
tl0_oldlinux64:	LINUX_64BIT_SYSCALL_TRAP

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.sparc
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On Mon, Jan 25, 2016 at 10:51:00PM -0800, David Miller wrote:
> From: Sam Ravnborg <sam@ravnborg.org>
> Date: Tue, 26 Jan 2016 07:29:51 +0100
> 
> > Could you please add a comment about where 0x110 comes from.
> > I at least failed to track this down.
> 
> Frankly I'm fine with this.  Someone who understands sparc64 can look
> at the trap table around entry 0x110 and see:
> 
> tl0_resv10e:	BTRAP(0x10e) BTRAP(0x10f)
> tl0_linux32:	LINUX_32BIT_SYSCALL_TRAP
> tl0_oldlinux64:	LINUX_64BIT_SYSCALL_TRAP

If one realise to look in the trap table in the first place - yes.

Adding a short:

/* Check if this is LINUX_32BIT_SYSCALL_TRAP */
Would make wonders to readability.

	Sam
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On Tue, Jan 26, 2016 at 9:44 AM, Sam Ravnborg <sam@ravnborg.org> wrote:
> On Mon, Jan 25, 2016 at 10:51:00PM -0800, David Miller wrote:
>> From: Sam Ravnborg <sam@ravnborg.org>
>> Date: Tue, 26 Jan 2016 07:29:51 +0100
>>
>> > Could you please add a comment about where 0x110 comes from.
>> > I at least failed to track this down.
>>
>> Frankly I'm fine with this.  Someone who understands sparc64 can look
>> at the trap table around entry 0x110 and see:
>>
>> tl0_resv10e:  BTRAP(0x10e) BTRAP(0x10f)
>> tl0_linux32:  LINUX_32BIT_SYSCALL_TRAP
>> tl0_oldlinux64:       LINUX_64BIT_SYSCALL_TRAP
>
> If one realise to look in the trap table in the first place - yes.
>
> Adding a short:
>
> /* Check if this is LINUX_32BIT_SYSCALL_TRAP */
> Would make wonders to readability.

I'll add a comment in v2.

--Andy
-- 
Andy Lutomirski
AMA Capital Management, LLC
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From: Sam Ravnborg <sam@ravnborg.org>
Date: Tue, 26 Jan 2016 18:44:41 +0100

> On Mon, Jan 25, 2016 at 10:51:00PM -0800, David Miller wrote:
>> From: Sam Ravnborg <sam@ravnborg.org>
>> Date: Tue, 26 Jan 2016 07:29:51 +0100
>> 
>> > Could you please add a comment about where 0x110 comes from.
>> > I at least failed to track this down.
>> 
>> Frankly I'm fine with this.  Someone who understands sparc64 can look
>> at the trap table around entry 0x110 and see:
>> 
>> tl0_resv10e:	BTRAP(0x10e) BTRAP(0x10f)
>> tl0_linux32:	LINUX_32BIT_SYSCALL_TRAP
>> tl0_oldlinux64:	LINUX_64BIT_SYSCALL_TRAP
> 
> If one realise to look in the trap table in the first place - yes.
> 
> Adding a short:
> 
> /* Check if this is LINUX_32BIT_SYSCALL_TRAP */
> Would make wonders to readability.

Fair enough.
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Subject: [PATCH 06/17] arch: Set IORESOURCE_SYSTEM_RAM flag for System RAM
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From: Toshi Kani <toshi.kani@hpe.com>

Set IORESOURCE_SYSTEM_RAM in flags of resource ranges with "System RAM",
"Kernel code", "Kernel data", and "Kernel bss".

Note that:

 - IORESOURCE_SYSRAM (i.e. modifier bit) is set in flags when
   IORESOURCE_MEM is already set. IORESOURCE_SYSTEM_RAM is defined
   as (IORESOURCE_MEM|IORESOURCE_SYSRAM).

 - Some archs do not set 'flags' for children nodes, such as
   "Kernel code".  This patch does not change 'flags' in this
   case.

Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mips@linux-mips.org
Cc: linux-mm <linux-mm@kvack.org>
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Link: http://lkml.kernel.org/r/1452020081-26534-6-git-send-email-toshi.kani@hpe.com
Signed-off-by: Borislav Petkov <bp@suse.de>
---
 arch/arm/kernel/setup.c       |  6 +++---
 arch/arm64/kernel/setup.c     |  6 +++---
 arch/avr32/kernel/setup.c     |  6 +++---
 arch/m32r/kernel/setup.c      |  4 ++--
 arch/mips/kernel/setup.c      | 10 ++++++----
 arch/parisc/mm/init.c         |  6 +++---
 arch/powerpc/mm/mem.c         |  2 +-
 arch/s390/kernel/setup.c      |  8 ++++----
 arch/score/kernel/setup.c     |  2 +-
 arch/sh/kernel/setup.c        |  8 ++++----
 arch/sparc/mm/init_64.c       |  8 ++++----
 arch/tile/kernel/setup.c      | 11 ++++++++---
 arch/unicore32/kernel/setup.c |  6 +++---
 13 files changed, 45 insertions(+), 38 deletions(-)

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 7d0cba6f1cc5..139791ed473d 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -176,13 +176,13 @@ static struct resource mem_res[] = {
 		.name = "Kernel code",
 		.start = 0,
 		.end = 0,
-		.flags = IORESOURCE_MEM
+		.flags = IORESOURCE_SYSTEM_RAM
 	},
 	{
 		.name = "Kernel data",
 		.start = 0,
 		.end = 0,
-		.flags = IORESOURCE_MEM
+		.flags = IORESOURCE_SYSTEM_RAM
 	}
 };
 
@@ -851,7 +851,7 @@ static void __init request_standard_resources(const struct machine_desc *mdesc)
 		res->name  = "System RAM";
 		res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));
 		res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1;
-		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+		res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
 
 		request_resource(&iomem_resource, res);
 
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 8119479147db..450987d99b9b 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -73,13 +73,13 @@ static struct resource mem_res[] = {
 		.name = "Kernel code",
 		.start = 0,
 		.end = 0,
-		.flags = IORESOURCE_MEM
+		.flags = IORESOURCE_SYSTEM_RAM
 	},
 	{
 		.name = "Kernel data",
 		.start = 0,
 		.end = 0,
-		.flags = IORESOURCE_MEM
+		.flags = IORESOURCE_SYSTEM_RAM
 	}
 };
 
@@ -210,7 +210,7 @@ static void __init request_standard_resources(void)
 		res->name  = "System RAM";
 		res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));
 		res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1;
-		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+		res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
 
 		request_resource(&iomem_resource, res);
 
diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c
index 209ae5ad3495..e6928896da2a 100644
--- a/arch/avr32/kernel/setup.c
+++ b/arch/avr32/kernel/setup.c
@@ -49,13 +49,13 @@ static struct resource __initdata kernel_data = {
 	.name	= "Kernel data",
 	.start	= 0,
 	.end	= 0,
-	.flags	= IORESOURCE_MEM,
+	.flags	= IORESOURCE_SYSTEM_RAM,
 };
 static struct resource __initdata kernel_code = {
 	.name	= "Kernel code",
 	.start	= 0,
 	.end	= 0,
-	.flags	= IORESOURCE_MEM,
+	.flags	= IORESOURCE_SYSTEM_RAM,
 	.sibling = &kernel_data,
 };
 
@@ -134,7 +134,7 @@ add_physical_memory(resource_size_t start, resource_size_t end)
 	new->start = start;
 	new->end = end;
 	new->name = "System RAM";
-	new->flags = IORESOURCE_MEM;
+	new->flags = IORESOURCE_SYSTEM_RAM;
 
 	*pprev = new;
 }
diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c
index a5ecef7188ba..136c69f1fb8a 100644
--- a/arch/m32r/kernel/setup.c
+++ b/arch/m32r/kernel/setup.c
@@ -70,14 +70,14 @@ static struct resource data_resource = {
 	.name   = "Kernel data",
 	.start  = 0,
 	.end    = 0,
-	.flags  = IORESOURCE_BUSY | IORESOURCE_MEM
+	.flags  = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
 };
 
 static struct resource code_resource = {
 	.name   = "Kernel code",
 	.start  = 0,
 	.end    = 0,
-	.flags  = IORESOURCE_BUSY | IORESOURCE_MEM
+	.flags  = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
 };
 
 unsigned long memory_start;
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 569a7d5242dd..c745f0ea2577 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -732,21 +732,23 @@ static void __init resource_init(void)
 			end = HIGHMEM_START - 1;
 
 		res = alloc_bootmem(sizeof(struct resource));
+
+		res->start = start;
+		res->end = end;
+		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+
 		switch (boot_mem_map.map[i].type) {
 		case BOOT_MEM_RAM:
 		case BOOT_MEM_INIT_RAM:
 		case BOOT_MEM_ROM_DATA:
 			res->name = "System RAM";
+			res->flags |= IORESOURCE_SYSRAM;
 			break;
 		case BOOT_MEM_RESERVED:
 		default:
 			res->name = "reserved";
 		}
 
-		res->start = start;
-		res->end = end;
-
-		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
 		request_resource(&iomem_resource, res);
 
 		/*
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1b366c477687..3c07d6b96877 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -55,12 +55,12 @@ signed char pfnnid_map[PFNNID_MAP_MAX] __read_mostly;
 
 static struct resource data_resource = {
 	.name	= "Kernel data",
-	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
 };
 
 static struct resource code_resource = {
 	.name	= "Kernel code",
-	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
 };
 
 static struct resource pdcdata_resource = {
@@ -201,7 +201,7 @@ static void __init setup_bootmem(void)
 		res->name = "System RAM";
 		res->start = pmem_ranges[i].start_pfn << PAGE_SHIFT;
 		res->end = res->start + (pmem_ranges[i].pages << PAGE_SHIFT)-1;
-		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+		res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
 		request_resource(&iomem_resource, res);
 	}
 
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 22d94c3e6fc4..e78a2b73aa5d 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -541,7 +541,7 @@ static int __init add_system_ram_resources(void)
 			res->name = "System RAM";
 			res->start = base;
 			res->end = base + size - 1;
-			res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+			res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
 			WARN_ON(request_resource(&iomem_resource, res) < 0);
 		}
 	}
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index c6878fbbcf13..47dc0c011c6d 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -378,17 +378,17 @@ static void __init setup_lowcore(void)
 
 static struct resource code_resource = {
 	.name  = "Kernel code",
-	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
+	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
 };
 
 static struct resource data_resource = {
 	.name = "Kernel data",
-	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
+	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
 };
 
 static struct resource bss_resource = {
 	.name = "Kernel bss",
-	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
+	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
 };
 
 static struct resource __initdata *standard_resources[] = {
@@ -412,7 +412,7 @@ static void __init setup_resources(void)
 
 	for_each_memblock(memory, reg) {
 		res = alloc_bootmem_low(sizeof(*res));
-		res->flags = IORESOURCE_BUSY | IORESOURCE_MEM;
+		res->flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM;
 
 		res->name = "System RAM";
 		res->start = reg->base;
diff --git a/arch/score/kernel/setup.c b/arch/score/kernel/setup.c
index b48459afefdd..f3a0649ab521 100644
--- a/arch/score/kernel/setup.c
+++ b/arch/score/kernel/setup.c
@@ -101,7 +101,7 @@ static void __init resource_init(void)
 	res->name = "System RAM";
 	res->start = MEMORY_START;
 	res->end = MEMORY_START + MEMORY_SIZE - 1;
-	res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+	res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
 	request_resource(&iomem_resource, res);
 
 	request_resource(res, &code_resource);
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index de19cfa768f2..3f1c18b28e8a 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -78,17 +78,17 @@ static char __initdata command_line[COMMAND_LINE_SIZE] = { 0, };
 
 static struct resource code_resource = {
 	.name = "Kernel code",
-	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
+	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
 };
 
 static struct resource data_resource = {
 	.name = "Kernel data",
-	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
+	.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
 };
 
 static struct resource bss_resource = {
 	.name	= "Kernel bss",
-	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM,
+	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
 };
 
 unsigned long memory_start;
@@ -202,7 +202,7 @@ void __init __add_active_range(unsigned int nid, unsigned long start_pfn,
 	res->name = "System RAM";
 	res->start = start;
 	res->end = end - 1;
-	res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+	res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
 
 	if (request_resource(&iomem_resource, res)) {
 		pr_err("unable to request memory_resource 0x%lx 0x%lx\n",
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 6f216853f272..1cfe6aab7a11 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -2863,17 +2863,17 @@ void hugetlb_setup(struct pt_regs *regs)
 
 static struct resource code_resource = {
 	.name	= "Kernel code",
-	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
+	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
 };
 
 static struct resource data_resource = {
 	.name	= "Kernel data",
-	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
+	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
 };
 
 static struct resource bss_resource = {
 	.name	= "Kernel bss",
-	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
+	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
 };
 
 static inline resource_size_t compute_kern_paddr(void *addr)
@@ -2909,7 +2909,7 @@ static int __init report_memory(void)
 		res->name = "System RAM";
 		res->start = pavail[i].phys_addr;
 		res->end = pavail[i].phys_addr + pavail[i].reg_size - 1;
-		res->flags = IORESOURCE_BUSY | IORESOURCE_MEM;
+		res->flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM;
 
 		if (insert_resource(&iomem_resource, res) < 0) {
 			pr_warn("Resource insertion failed.\n");
diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
index bbb855de6569..a992238e9b58 100644
--- a/arch/tile/kernel/setup.c
+++ b/arch/tile/kernel/setup.c
@@ -1632,14 +1632,14 @@ static struct resource data_resource = {
 	.name	= "Kernel data",
 	.start	= 0,
 	.end	= 0,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
+	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
 };
 
 static struct resource code_resource = {
 	.name	= "Kernel code",
 	.start	= 0,
 	.end	= 0,
-	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
+	.flags	= IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
 };
 
 /*
@@ -1673,10 +1673,15 @@ insert_ram_resource(u64 start_pfn, u64 end_pfn, bool reserved)
 		kzalloc(sizeof(struct resource), GFP_ATOMIC);
 	if (!res)
 		return NULL;
-	res->name = reserved ? "Reserved" : "System RAM";
 	res->start = start_pfn << PAGE_SHIFT;
 	res->end = (end_pfn << PAGE_SHIFT) - 1;
 	res->flags = IORESOURCE_BUSY | IORESOURCE_MEM;
+	if (reserved) {
+		res->name = "Reserved";
+	} else {
+		res->name = "System RAM";
+		res->flags |= IORESOURCE_SYSRAM;
+	}
 	if (insert_resource(&iomem_resource, res)) {
 		kfree(res);
 		return NULL;
diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
index 3fa317f96122..c2bffa5614a4 100644
--- a/arch/unicore32/kernel/setup.c
+++ b/arch/unicore32/kernel/setup.c
@@ -72,13 +72,13 @@ static struct resource mem_res[] = {
 		.name = "Kernel code",
 		.start = 0,
 		.end = 0,
-		.flags = IORESOURCE_MEM
+		.flags = IORESOURCE_SYSTEM_RAM
 	},
 	{
 		.name = "Kernel data",
 		.start = 0,
 		.end = 0,
-		.flags = IORESOURCE_MEM
+		.flags = IORESOURCE_SYSTEM_RAM
 	}
 };
 
@@ -211,7 +211,7 @@ request_standard_resources(struct meminfo *mi)
 		res->name  = "System RAM";
 		res->start = mi->bank[i].start;
 		res->end   = mi->bank[i].start + mi->bank[i].size - 1;
-		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+		res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
 
 		request_resource(&iomem_resource, res);
 
-- 
2.3.5




From - Thu Nov 08 21:38:28 2018
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X-Mozilla-Keys:                                                                                 
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From: Borislav Petkov <bp@alien8.de>
Newsgroups: gmane.linux.kernel,gmane.linux.acpi.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel.mm,gmane.linux.ports.parisc,gmane.linux.kernel.renesas-soc,gmane.linux.ports.sh.devel
Subject: [PATCH 09/17] drivers: Initialize resource entry to zero
Date: Tue, 26 Jan 2016 21:57:25 +0100
Lines: 120
Approved: news@gmane.org
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	linux-mm <linux-mm@kvack.org>, linux-parisc@vger.kernel.org,
	linux-renesas-soc@vger.kernel.org, linux-sh@vger.kernel.org
To: Ingo Molnar <mingo@kernel.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2136151>

From: Toshi Kani <toshi.kani@hpe.com>

I/O resource descriptor, 'desc' in struct resource, needs to be
initialized to zero by default.  Some drivers call kmalloc() to
allocate a resource entry, but do not initialize it to zero by
memset().  Change these drivers to call kzalloc(), instead.

Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Acked-by: Alexandre Bounine <alexandre.bounine@idt.com>
Acked-by: Helge Deller <deller@gmx.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-acpi@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mm <linux-mm@kvack.org>
Cc: linux-parisc@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Link: http://lkml.kernel.org/r/1452020081-26534-9-git-send-email-toshi.kani@hpe.com
Signed-off-by: Borislav Petkov <bp@suse.de>
---
 drivers/acpi/acpi_platform.c       | 2 +-
 drivers/parisc/eisa_enumerator.c   | 4 ++--
 drivers/rapidio/rio.c              | 8 ++++----
 drivers/sh/superhyway/superhyway.c | 2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 296b7a14893a..b6f7fa3a1d40 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -62,7 +62,7 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
 	if (count < 0) {
 		return NULL;
 	} else if (count > 0) {
-		resources = kmalloc(count * sizeof(struct resource),
+		resources = kzalloc(count * sizeof(struct resource),
 				    GFP_KERNEL);
 		if (!resources) {
 			dev_err(&adev->dev, "No memory for resources\n");
diff --git a/drivers/parisc/eisa_enumerator.c b/drivers/parisc/eisa_enumerator.c
index a656d9e83343..21905fef2cbf 100644
--- a/drivers/parisc/eisa_enumerator.c
+++ b/drivers/parisc/eisa_enumerator.c
@@ -91,7 +91,7 @@ static int configure_memory(const unsigned char *buf,
 	for (i=0;i<HPEE_MEMORY_MAX_ENT;i++) {
 		c = get_8(buf+len);
 		
-		if (NULL != (res = kmalloc(sizeof(struct resource), GFP_KERNEL))) {
+		if (NULL != (res = kzalloc(sizeof(struct resource), GFP_KERNEL))) {
 			int result;
 			
 			res->name = name;
@@ -183,7 +183,7 @@ static int configure_port(const unsigned char *buf, struct resource *io_parent,
 	for (i=0;i<HPEE_PORT_MAX_ENT;i++) {
 		c = get_8(buf+len);
 		
-		if (NULL != (res = kmalloc(sizeof(struct resource), GFP_KERNEL))) {
+		if (NULL != (res = kzalloc(sizeof(struct resource), GFP_KERNEL))) {
 			res->name = board;
 			res->start = get_16(buf+len+1);
 			res->end = get_16(buf+len+1)+(c&HPEE_PORT_SIZE_MASK)+1;
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index d7b87c64b7cd..e220edc85c68 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -117,7 +117,7 @@ int rio_request_inb_mbox(struct rio_mport *mport,
 	if (mport->ops->open_inb_mbox == NULL)
 		goto out;
 
-	res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_mbox_res(res, mbox, mbox);
@@ -185,7 +185,7 @@ int rio_request_outb_mbox(struct rio_mport *mport,
 	if (mport->ops->open_outb_mbox == NULL)
 		goto out;
 
-	res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_mbox_res(res, mbox, mbox);
@@ -285,7 +285,7 @@ int rio_request_inb_dbell(struct rio_mport *mport,
 {
 	int rc = 0;
 
-	struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	struct resource *res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_dbell_res(res, start, end);
@@ -360,7 +360,7 @@ int rio_release_inb_dbell(struct rio_mport *mport, u16 start, u16 end)
 struct resource *rio_request_outb_dbell(struct rio_dev *rdev, u16 start,
 					u16 end)
 {
-	struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
+	struct resource *res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 
 	if (res) {
 		rio_init_dbell_res(res, start, end);
diff --git a/drivers/sh/superhyway/superhyway.c b/drivers/sh/superhyway/superhyway.c
index 2d9e7f3d5611..bb1fb7712134 100644
--- a/drivers/sh/superhyway/superhyway.c
+++ b/drivers/sh/superhyway/superhyway.c
@@ -66,7 +66,7 @@ int superhyway_add_device(unsigned long base, struct superhyway_device *sdev,
 	superhyway_read_vcr(dev, base, &dev->vcr);
 
 	if (!dev->resource) {
-		dev->resource = kmalloc(sizeof(struct resource), GFP_KERNEL);
+		dev->resource = kzalloc(sizeof(struct resource), GFP_KERNEL);
 		if (!dev->resource) {
 			kfree(dev);
 			return -ENOMEM;
-- 
2.3.5



From - Thu Nov 08 21:38:29 2018
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: Re: [PATCH v2 14/16] input: Redefine INPUT_COMPAT_TEST as in_compat_syscall()
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Hi Andy,

On Mon, Jan 25, 2016 at 2:24 PM, Andy Lutomirski <luto@kernel.org> wrote:
> The input compat code should work like all other compat code: for
> 32-bit syscalls, use the 32-bit ABI and for 64-bit syscalls, use the
> 64-bit ABI.  We have a helper for that (in_compat_syscall()): just
> use it.
>
> Signed-off-by: Andy Lutomirski <luto@kernel.org>
> ---
>  drivers/input/input-compat.h | 12 +-----------
>  1 file changed, 1 insertion(+), 11 deletions(-)
>
> diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h
> index 148f66fe3205..0f25878d5fa2 100644
> --- a/drivers/input/input-compat.h
> +++ b/drivers/input/input-compat.h
> @@ -17,17 +17,7 @@
>
>  #ifdef CONFIG_COMPAT
>
> -/* Note to the author of this code: did it ever occur to
> -   you why the ifdefs are needed? Think about it again. -AK */
> -#if defined(CONFIG_X86_64) || defined(CONFIG_TILE)
> -#  define INPUT_COMPAT_TEST is_compat_task()
> -#elif defined(CONFIG_S390)
> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT)
> -#elif defined(CONFIG_MIPS)
> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT_ADDR)
> -#else
> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT)
> -#endif
> +#define INPUT_COMPAT_TEST in_compat_syscall()
>


If we now have function that works on all arches I'd prefer if we used
it directly instead of continuing using INPUT_COMPAT_TEST.

Thanks.

-- 
Dmitry



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Subject: Re: [PATCH v2 14/16] input: Redefine INPUT_COMPAT_TEST as in_compat_syscall()
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Cc: Andy Lutomirski <luto@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Al Viro <viro@zeniv.linux.org.uk>,
	Linus Torvalds <torvalds@linux-foundation.org>,
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	linux-parisc@vger.kernel.org,
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To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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On Wed, Jan 27, 2016 at 11:17 AM, Dmitry Torokhov
<dmitry.torokhov@gmail.com> wrote:
> Hi Andy,
>
> On Mon, Jan 25, 2016 at 2:24 PM, Andy Lutomirski <luto@kernel.org> wrote:
>> The input compat code should work like all other compat code: for
>> 32-bit syscalls, use the 32-bit ABI and for 64-bit syscalls, use the
>> 64-bit ABI.  We have a helper for that (in_compat_syscall()): just
>> use it.
>>
>> Signed-off-by: Andy Lutomirski <luto@kernel.org>
>> ---
>>  drivers/input/input-compat.h | 12 +-----------
>>  1 file changed, 1 insertion(+), 11 deletions(-)
>>
>> diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h
>> index 148f66fe3205..0f25878d5fa2 100644
>> --- a/drivers/input/input-compat.h
>> +++ b/drivers/input/input-compat.h
>> @@ -17,17 +17,7 @@
>>
>>  #ifdef CONFIG_COMPAT
>>
>> -/* Note to the author of this code: did it ever occur to
>> -   you why the ifdefs are needed? Think about it again. -AK */
>> -#if defined(CONFIG_X86_64) || defined(CONFIG_TILE)
>> -#  define INPUT_COMPAT_TEST is_compat_task()
>> -#elif defined(CONFIG_S390)
>> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT)
>> -#elif defined(CONFIG_MIPS)
>> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT_ADDR)
>> -#else
>> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT)
>> -#endif
>> +#define INPUT_COMPAT_TEST in_compat_syscall()
>>
>
>
> If we now have function that works on all arches I'd prefer if we used
> it directly instead of continuing using INPUT_COMPAT_TEST.

I'll write a followup patch for that if you don't beat me to it.

--Andy
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.mips.general,gmane.linux.ports.sparc
Subject: Re: [PATCH v2 14/16] input: Redefine INPUT_COMPAT_TEST as
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On Wed, Jan 27, 2016 at 12:29:14PM -0800, Andy Lutomirski wrote:
> On Wed, Jan 27, 2016 at 11:17 AM, Dmitry Torokhov
> <dmitry.torokhov@gmail.com> wrote:
> > Hi Andy,
> >
> > On Mon, Jan 25, 2016 at 2:24 PM, Andy Lutomirski <luto@kernel.org> wrote:
> >> The input compat code should work like all other compat code: for
> >> 32-bit syscalls, use the 32-bit ABI and for 64-bit syscalls, use the
> >> 64-bit ABI.  We have a helper for that (in_compat_syscall()): just
> >> use it.
> >>
> >> Signed-off-by: Andy Lutomirski <luto@kernel.org>
> >> ---
> >>  drivers/input/input-compat.h | 12 +-----------
> >>  1 file changed, 1 insertion(+), 11 deletions(-)
> >>
> >> diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h
> >> index 148f66fe3205..0f25878d5fa2 100644
> >> --- a/drivers/input/input-compat.h
> >> +++ b/drivers/input/input-compat.h
> >> @@ -17,17 +17,7 @@
> >>
> >>  #ifdef CONFIG_COMPAT
> >>
> >> -/* Note to the author of this code: did it ever occur to
> >> -   you why the ifdefs are needed? Think about it again. -AK */
> >> -#if defined(CONFIG_X86_64) || defined(CONFIG_TILE)
> >> -#  define INPUT_COMPAT_TEST is_compat_task()
> >> -#elif defined(CONFIG_S390)
> >> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT)
> >> -#elif defined(CONFIG_MIPS)
> >> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT_ADDR)
> >> -#else
> >> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT)
> >> -#endif
> >> +#define INPUT_COMPAT_TEST in_compat_syscall()
> >>
> >
> >
> > If we now have function that works on all arches I'd prefer if we used
> > it directly instead of continuing using INPUT_COMPAT_TEST.
> 
> I'll write a followup patch for that if you don't beat me to it.

I promise I wont ;)

-- 
Dmitry

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This patch series adds an export which can be set by system debuggers to
direct the hard lockup and soft lockup detector to trigger a breakpoint
exception and enter a debugger if one is active.  It is assumed that if
someone sets this variable, then an breakpoint handler of some sort will
be actively loaded or registered via the notify die handler chain.

This addition is extremely useful for debugging hard and soft lockups
real time and quickly from a console debugger.

Signed-off-by: Jeffrey Merkey <jeffmerkey@gmail.com>
---
 arch/parisc/include/asm/kdebug.h | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 arch/parisc/include/asm/kdebug.h

diff --git a/arch/parisc/include/asm/kdebug.h b/arch/parisc/include/asm/kdebug.h
new file mode 100644
index 0000000..5d09de1
--- /dev/null
+++ b/arch/parisc/include/asm/kdebug.h
@@ -0,0 +1,4 @@
+
+static inline void arch_breakpoint(void)
+{
+}
-- 
1.8.3.1



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From: "Anton Wuerfel" <anton.wuerfel@fau.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: Re: [PATCH v7 00/15] tty: serial: 8250: Fix checkpatch warnings
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Hello,

we noticed the patch series has not been merged yet to 4.5. Are there
still problems we have to address?

Regards
Anton Wuerfel
Phillip Raffeck



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From - Thu Nov 08 21:38:29 2018
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Subject: Re: [PATCH v7 00/15] tty: serial: 8250: Fix checkpatch warnings
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To: Anton Wuerfel <anton.wuerfel@fau.de>
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On Wed, Feb 03, 2016 at 03:40:09PM +0100, Anton Wuerfel wrote:
> Hello,
> 
> we noticed the patch series has not been merged yet to 4.5. Are there
> still problems we have to address?

I don't know, they are in my queue to be processed "soon"...

And they will not go into 4.5, that merge window is long closed, coding
style fixes like this are on the bottom of my list of things to be
reviewed, and are not "bug fixes" that affect people so they sometimes
take a long time to get merged.

thanks,

greg k-h


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Use parentheses around expression in floppy.h
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David Binderman reported a style issue in the floppy.h header file:
arch/parisc/include/asm/floppy.h:221: (style) Boolean result is used in bitwise
  operation. Clarify expression with parentheses.

Reported-by: David Binderman <dcb314@hotmail.com>
Cc: David Binderman <dcb314@hotmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/floppy.h b/arch/parisc/include/asm/floppy.h
index f84ff12..6d8276cd 100644
--- a/arch/parisc/include/asm/floppy.h
+++ b/arch/parisc/include/asm/floppy.h
@@ -33,7 +33,7 @@
  * floppy accesses go through the track buffer.
  */
 #define _CROSS_64KB(a,s,vdma) \
-(!vdma && ((unsigned long)(a)/K_64 != ((unsigned long)(a) + (s) - 1) / K_64))
+(!(vdma) && ((unsigned long)(a)/K_64 != ((unsigned long)(a) + (s) - 1) / K_64))
 
 #define CROSS_64KB(a,s) _CROSS_64KB(a,s,use_virtual_dma & 1)
 
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On 2016-01-23, at 1:00 PM, John David Anglin wrote:

> WARNING: at block/blk-merge.c:454

With linux-image-4.4.0-1-parisc64-smp on c3740, the above warning is the last message I see.
Kernel seems to hang at that point.  This is warning code:

        /*
         * Something must have been wrong if the figured number of
         * segment is bigger than number of req's physical segments
         */
        WARN_ON(nsegs > rq->nr_phys_segments);

Dave
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On 2016-02-20, at 3:13 PM, John David Anglin wrote:

> On 2016-01-23, at 1:00 PM, John David Anglin wrote:
> 
>> WARNING: at block/blk-merge.c:454
> 
> With linux-image-4.4.0-1-parisc64-smp on c3740, the above warning is the last message I see.
> Kernel seems to hang at that point.  This is warning code:
> 
>        /*
>         * Something must have been wrong if the figured number of
>         * segment is bigger than number of req's physical segments
>         */
>        WARN_ON(nsegs > rq->nr_phys_segments);

On Sep. 12, 2015, I reported the following problem:

http://www.spinics.net/lists/linux-parisc/msg06327.html

Dave
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On 20.02.2016 21:43, John David Anglin wrote:
> On 2016-02-20, at 3:13 PM, John David Anglin wrote:
> 
>> On 2016-01-23, at 1:00 PM, John David Anglin wrote:
>>
>>> WARNING: at block/blk-merge.c:454
>>
>> With linux-image-4.4.0-1-parisc64-smp on c3740, the above warning is the last message I see.
>> Kernel seems to hang at that point.  This is warning code:
>>
>>        /*
>>         * Something must have been wrong if the figured number of
>>         * segment is bigger than number of req's physical segments
>>         */
>>        WARN_ON(nsegs > rq->nr_phys_segments);
> 
> On Sep. 12, 2015, I reported the following problem:
> 
> http://www.spinics.net/lists/linux-parisc/msg06327.html

The problem is still, that this bug can only be reproduced at every boot when then 
scsi drivers are built as modules (and in an initrd). I could never reproduce it when
I booted a kernel with built-in scsi drivers.

The bug seems to be triggered by(*nsegs)++ command in __blk_segment_map_sg() in block/blk-merge.c.
I'm testing with the 4.4.2 kernel from debian.
I modified __blk_segment_map_sg() like that:
static inline void
__blk_segment_map_sg(struct request_queue *q, struct bio_vec *bvec,
                     struct scatterlist *sglist, struct bio_vec *bvprv,
                     struct scatterlist **sg, int *nsegs, int *cluster)
{

        int nbytes = bvec->bv_len;

        if (*sg && *cluster) {
                if ((*sg)->length + nbytes > queue_max_segment_size(q))
                        goto new_segment;

                if (!BIOVEC_PHYS_MERGEABLE(bvprv, bvec))
                        goto new_segment;
                if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bvec))
                        goto new_segment;

                (*sg)->length += nbytes;
        } else {
new_segment:
                if (*sg && *cluster) {
                        printk("NEW SEGMENT sg = %p!!!\n", sg);
                        printk("__blk_segment_map_sg: length = %d, nbytes = %d, sum = %d > %d\n", (*sg)->length, nbytes, (*sg)->length + nbytes, queue_max_segment_size(q));
                        printk("__blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = %d, BIOVEC_SEG_BOUNDARY = %d\n", BIOVEC_PHYS_MERGEABLE(bvprv, bvec), BIOVEC_SEG_BOUNDARY(q, bvprv, bvec) );
                }
                if (!*sg)
                        *sg = sglist;
                else {
                        /*
                         * If the driver previously mapped a shorter
                         * list, we could see a termination bit
                         * prematurely unless it fully inits the sg
                         * table on each mapping. We KNOW that there
                         * must be more entries here or the driver
                         * would be buggy, so force clear the
                         * termination bit to avoid doing a full
                         * sg_init_table() in drivers for each command.
                         */
                        sg_unmark_end(*sg);
                        *sg = sg_next(*sg);
                }

                sg_set_page(*sg, bvec->bv_page, nbytes, bvec->bv_offset);
                (*nsegs)++;
        }
        *bvprv = *bvec;
}

The boot log looks then like this:
[   43.044000] scsi_init_sgtable: count = 1, nents = 1
(there are lots of those before it!)
[   43.164000] scsi_init_sgtable: nr_phys_segments = 1
[   43.164000] scsi_init_sgtable: count = 1, nents = 1
[   43.280000] scsi_init_sgtable: nr_phys_segments = 1
[   43.280000] scsi_init_sgtable: count = 1, nents = 1
[   43.396000] scsi_init_sgtable: nr_phys_segments = 1
[   43.396000] scsi_init_sgtable: count = 1, nents = 1
[   43.512000] scsi_init_sgtable: nr_phys_segments = 1
[   43.512000] scsi_init_sgtable: count = 1, nents = 1
[   43.628000] scsi_init_sgtable: nr_phys_segments = 3
[   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
[   43.628000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
[   43.628000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   43.628000] scsi_init_sgtable: count = 3, nents = 3
[   44.224000] scsi_init_sgtable: nr_phys_segments = 1
[   44.224000] scsi_init_sgtable: count = 1, nents = 1
[   44.340000] scsi_init_sgtable: nr_phys_segments = 1
[   44.340000] scsi_init_sgtable: count = 1, nents = 1
[   44.456000] scsi_init_sgtable: nr_phys_segments = 7
[   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
[   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
[   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
[   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
[   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
[   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
[   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   44.456000] scsi_init_sgtable: count = 7, nents = 7
[   44.456000] timer_interrupt(CPU 0): delayed! cycles 4527081F rem C6C21  next/now 14E153306E/14E146C44D
[   46.116000] scsi_init_sgtable: nr_phys_segments = 7
[   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
[   46.116000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
[   46.116000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
[   46.116000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
[   46.116000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
[   46.116000] __blk_segment_map_sg: length = 8192, nbytes = 4096, sum = 12288 > 65536
[   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
[   46.116000] __blk_segment_map_sg: length = 16384, nbytes = 4096, sum = 20480 > 65536
[   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   46.116000] scsi_init_sgtable: count = 7, nents = 7
[   46.116000] timer_interrupt(CPU 0): delayed! cycles 453F0A77 rem 223089  next/now 152BB6286E/152B93F7E5
[   47.780000] scsi_init_sgtable: nr_phys_segments = 1
[   47.780000] scsi_init_sgtable: count = 1, nents = 1
[   47.896000] scsi_init_sgtable: nr_phys_segments = 6
[   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
[   47.896000] __blk_segment_map_sg: length = 61440, nbytes = 4096, sum = 65536 > 65536
[   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
[   47.896000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
[   47.896000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
[   47.896000] __blk_segment_map_sg: length = 8192, nbytes = 4096, sum = 12288 > 65536
[   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
[   47.896000] __blk_segment_map_sg: length = 8192, nbytes = 4096, sum = 12288 > 65536
[   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   47.896000] scsi_init_sgtable: count = 6, nents = 6
[   47.896000] timer_interrupt(CPU 0): delayed! cycles 3AB087E2 rem 23E4DE  next/now 1570BBD5EE/157097F110
[   49.324000] scsi_init_sgtable: nr_phys_segments = 1
[   49.324000] scsi_init_sgtable: count = 1, nents = 1
[   49.440000] scsi_init_sgtable: nr_phys_segments = 2
[   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
[   49.440000] __blk_segment_map_sg: length = 65536, nbytes = 4096, sum = 69632 > 65536

(this is interesting! Here we reach a sum of > 65536 the first time)

[   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 1, BIOVEC_SEG_BOUNDARY = 1
[   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
[   49.440000] __blk_segment_map_sg: length = 16384, nbytes = 4096, sum = 20480 > 65536
[   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   49.440000] *** FIXIT *** HELGE: nsegs > rq->nr_phys_segments = 3 > 2
[   49.440000] scsi_init_sgtable: count = 3, nents = 2
[   50.116000] ------------[ cut here ]------------
[   50.172000] WARNING: at /build/linux-4.4/linux-4.4.2/drivers/scsi/scsi_lib.c:1104

(this is usually a BUG(). I changed it to WARN() in the hope it would work anyway. It didn't.)

[   50.260000] Modules linked in: sd_mod sr_mod cdrom ata_generic ohci_pci ehci_pci ohci_hcd ehci_hcd pata_ns87415 sym53c8xx libata scsi_transport_spi scsi_mod usbcorep
[   50.456000] CPU: 0 PID: 70 Comm: systemd-udevd Not tainted 4.4.0-1-parisc64-smp #5 Debian 4.4.2-2
[   50.564000] task: 000000007f948b28 ti: 000000007fa90000 task.ti: 000000007fa90000
[   50.652000] 
[   50.672000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   50.728000] PSW: 00001000000001001111100100001110 Not tainted
[   50.796000] r00-03  000000ff0804f90e 00000000409ea2e0 00000000003e2ee0 000000007fa91140
[   50.892000] r04-07  00000000003cd000 000000007f914300 000000007f914b10 0000000000000003
[   50.988000] r08-11  0000000000000000 000000007f918000 0000000040bdd6b0 00000000003cd800
[   51.084000] r12-15  0000000000000000 000000007fa90778 00000000003cd000 000000007f918000
[   51.180000] r16-19  0000000000001300 0000000040bdd6b8 0000000040bdd6bc 0000000040ba2420
[   51.276000] r20-23  0000000099116e92 0000000000000000 00000000000002a0 00000000000002ee
[   51.372000] r24-27  0000000000000000 000000000800000e 0000000040b60750 00000000409b3ae0
[   51.468000] r28-31  0000000000000002 000000007fa914f0 000000007fa911e0 0000000040ba2408
[   51.564000] sr00-03  0000000000015000 0000000000000000 0000000000000000 0000000000015000
[   51.660000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[   51.756000] 
[   51.772000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000003e2f24 00000000003e2f28
[   51.872000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000fea4691528
[   51.956000]  CPU:        0   CR30: 000000007fa90000 CR31: 00000000ffff7dff
[   52.040000]  ORIG_R28: 0000000040b60718
[   52.084000]  IAOQ[0]: scsi_init_sgtable+0xfc/0x1b8 [scsi_mod]
[   52.152000]  IAOQ[1]: scsi_init_sgtable+0x100/0x1b8 [scsi_mod]
[   52.224000]  RP(r2): scsi_init_sgtable+0xb8/0x1b8 [scsi_mod]
[   52.292000] Backtrace:
[   52.320000]  [<00000000003e304c>] scsi_init_io+0x6c/0x258 [scsi_mod]
[   52.396000]  [<000000000087d078>] sd_init_command+0x70/0xec8 [sd_mod]

In general I think the bug is somehow in blk-merge.c.
But I'm not an expert in that code.

Helge
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On 2016-02-20, at 4:59 PM, Helge Deller wrote:

> On 20.02.2016 21:43, John David Anglin wrote:
>> On 2016-02-20, at 3:13 PM, John David Anglin wrote:
>> 
>>> On 2016-01-23, at 1:00 PM, John David Anglin wrote:
>>> 
>>>> WARNING: at block/blk-merge.c:454
>>> 
>>> With linux-image-4.4.0-1-parisc64-smp on c3740, the above warning is the last message I see.
>>> Kernel seems to hang at that point.  This is warning code:
>>> 
>>>       /*
>>>        * Something must have been wrong if the figured number of
>>>        * segment is bigger than number of req's physical segments
>>>        */
>>>       WARN_ON(nsegs > rq->nr_phys_segments);
>> 
>> On Sep. 12, 2015, I reported the following problem:
>> 
>> http://www.spinics.net/lists/linux-parisc/msg06327.html
> 
> The problem is still, that this bug can only be reproduced at every boot when then 
> scsi drivers are built as modules (and in an initrd). I could never reproduce it when
> I booted a kernel with built-in scsi drivers.
> 
> The bug seems to be triggered by(*nsegs)++ command in __blk_segment_map_sg() in block/blk-merge.c.
> I'm testing with the 4.4.2 kernel from debian.
> I modified __blk_segment_map_sg() like that:
> static inline void
> __blk_segment_map_sg(struct request_queue *q, struct bio_vec *bvec,
>                     struct scatterlist *sglist, struct bio_vec *bvprv,
>                     struct scatterlist **sg, int *nsegs, int *cluster)
> {
> 
>        int nbytes = bvec->bv_len;
> 
>        if (*sg && *cluster) {
>                if ((*sg)->length + nbytes > queue_max_segment_size(q))
>                        goto new_segment;
> 
>                if (!BIOVEC_PHYS_MERGEABLE(bvprv, bvec))
>                        goto new_segment;
>                if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bvec))
>                        goto new_segment;
> 
>                (*sg)->length += nbytes;
>        } else {
> new_segment:
>                if (*sg && *cluster) {
>                        printk("NEW SEGMENT sg = %p!!!\n", sg);
>                        printk("__blk_segment_map_sg: length = %d, nbytes = %d, sum = %d > %d\n", (*sg)->length, nbytes, (*sg)->length + nbytes, queue_max_segment_size(q));
>                        printk("__blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = %d, BIOVEC_SEG_BOUNDARY = %d\n", BIOVEC_PHYS_MERGEABLE(bvprv, bvec), BIOVEC_SEG_BOUNDARY(q, bvprv, bvec) );
>                }
>                if (!*sg)
>                        *sg = sglist;
>                else {
>                        /*
>                         * If the driver previously mapped a shorter
>                         * list, we could see a termination bit
>                         * prematurely unless it fully inits the sg
>                         * table on each mapping. We KNOW that there
>                         * must be more entries here or the driver
>                         * would be buggy, so force clear the
>                         * termination bit to avoid doing a full
>                         * sg_init_table() in drivers for each command.
>                         */
>                        sg_unmark_end(*sg);
>                        *sg = sg_next(*sg);
>                }
> 
>                sg_set_page(*sg, bvec->bv_page, nbytes, bvec->bv_offset);
>                (*nsegs)++;
>        }
>        *bvprv = *bvec;
> }
> 
> The boot log looks then like this:
> [   43.044000] scsi_init_sgtable: count = 1, nents = 1
> (there are lots of those before it!)
> [   43.164000] scsi_init_sgtable: nr_phys_segments = 1
> [   43.164000] scsi_init_sgtable: count = 1, nents = 1
> [   43.280000] scsi_init_sgtable: nr_phys_segments = 1
> [   43.280000] scsi_init_sgtable: count = 1, nents = 1
> [   43.396000] scsi_init_sgtable: nr_phys_segments = 1
> [   43.396000] scsi_init_sgtable: count = 1, nents = 1
> [   43.512000] scsi_init_sgtable: nr_phys_segments = 1
> [   43.512000] scsi_init_sgtable: count = 1, nents = 1
> [   43.628000] scsi_init_sgtable: nr_phys_segments = 3
> [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
> [   43.628000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
> [   43.628000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   43.628000] scsi_init_sgtable: count = 3, nents = 3
> [   44.224000] scsi_init_sgtable: nr_phys_segments = 1
> [   44.224000] scsi_init_sgtable: count = 1, nents = 1
> [   44.340000] scsi_init_sgtable: nr_phys_segments = 1
> [   44.340000] scsi_init_sgtable: count = 1, nents = 1
> [   44.456000] scsi_init_sgtable: nr_phys_segments = 7
> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   44.456000] scsi_init_sgtable: count = 7, nents = 7
> [   44.456000] timer_interrupt(CPU 0): delayed! cycles 4527081F rem C6C21  next/now 14E153306E/14E146C44D
> [   46.116000] scsi_init_sgtable: nr_phys_segments = 7
> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> [   46.116000] __blk_segment_map_sg: length = 8192, nbytes = 4096, sum = 12288 > 65536
> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> [   46.116000] __blk_segment_map_sg: length = 16384, nbytes = 4096, sum = 20480 > 65536
> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   46.116000] scsi_init_sgtable: count = 7, nents = 7
> [   46.116000] timer_interrupt(CPU 0): delayed! cycles 453F0A77 rem 223089  next/now 152BB6286E/152B93F7E5
> [   47.780000] scsi_init_sgtable: nr_phys_segments = 1
> [   47.780000] scsi_init_sgtable: count = 1, nents = 1
> [   47.896000] scsi_init_sgtable: nr_phys_segments = 6
> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> [   47.896000] __blk_segment_map_sg: length = 61440, nbytes = 4096, sum = 65536 > 65536
> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> [   47.896000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> [   47.896000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> [   47.896000] __blk_segment_map_sg: length = 8192, nbytes = 4096, sum = 12288 > 65536
> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> [   47.896000] __blk_segment_map_sg: length = 8192, nbytes = 4096, sum = 12288 > 65536
> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   47.896000] scsi_init_sgtable: count = 6, nents = 6
> [   47.896000] timer_interrupt(CPU 0): delayed! cycles 3AB087E2 rem 23E4DE  next/now 1570BBD5EE/157097F110
> [   49.324000] scsi_init_sgtable: nr_phys_segments = 1
> [   49.324000] scsi_init_sgtable: count = 1, nents = 1
> [   49.440000] scsi_init_sgtable: nr_phys_segments = 2
> [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
> [   49.440000] __blk_segment_map_sg: length = 65536, nbytes = 4096, sum = 69632 > 65536
> 
> (this is interesting! Here we reach a sum of > 65536 the first time)
> 
> [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 1, BIOVEC_SEG_BOUNDARY = 1
> [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
> [   49.440000] __blk_segment_map_sg: length = 16384, nbytes = 4096, sum = 20480 > 65536
> [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
> [   49.440000] *** FIXIT *** HELGE: nsegs > rq->nr_phys_segments = 3 > 2
> [   49.440000] scsi_init_sgtable: count = 3, nents = 2
> [   50.116000] ------------[ cut here ]------------
> [   50.172000] WARNING: at /build/linux-4.4/linux-4.4.2/drivers/scsi/scsi_lib.c:1104
> 
> (this is usually a BUG(). I changed it to WARN() in the hope it would work anyway. It didn't.)
> 
> [   50.260000] Modules linked in: sd_mod sr_mod cdrom ata_generic ohci_pci ehci_pci ohci_hcd ehci_hcd pata_ns87415 sym53c8xx libata scsi_transport_spi scsi_mod usbcorep
> [   50.456000] CPU: 0 PID: 70 Comm: systemd-udevd Not tainted 4.4.0-1-parisc64-smp #5 Debian 4.4.2-2
> [   50.564000] task: 000000007f948b28 ti: 000000007fa90000 task.ti: 000000007fa90000
> [   50.652000] 
> [   50.672000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [   50.728000] PSW: 00001000000001001111100100001110 Not tainted
> [   50.796000] r00-03  000000ff0804f90e 00000000409ea2e0 00000000003e2ee0 000000007fa91140
> [   50.892000] r04-07  00000000003cd000 000000007f914300 000000007f914b10 0000000000000003
> [   50.988000] r08-11  0000000000000000 000000007f918000 0000000040bdd6b0 00000000003cd800
> [   51.084000] r12-15  0000000000000000 000000007fa90778 00000000003cd000 000000007f918000
> [   51.180000] r16-19  0000000000001300 0000000040bdd6b8 0000000040bdd6bc 0000000040ba2420
> [   51.276000] r20-23  0000000099116e92 0000000000000000 00000000000002a0 00000000000002ee
> [   51.372000] r24-27  0000000000000000 000000000800000e 0000000040b60750 00000000409b3ae0
> [   51.468000] r28-31  0000000000000002 000000007fa914f0 000000007fa911e0 0000000040ba2408
> [   51.564000] sr00-03  0000000000015000 0000000000000000 0000000000000000 0000000000015000
> [   51.660000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> [   51.756000] 
> [   51.772000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000003e2f24 00000000003e2f28
> [   51.872000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000fea4691528
> [   51.956000]  CPU:        0   CR30: 000000007fa90000 CR31: 00000000ffff7dff
> [   52.040000]  ORIG_R28: 0000000040b60718
> [   52.084000]  IAOQ[0]: scsi_init_sgtable+0xfc/0x1b8 [scsi_mod]
> [   52.152000]  IAOQ[1]: scsi_init_sgtable+0x100/0x1b8 [scsi_mod]
> [   52.224000]  RP(r2): scsi_init_sgtable+0xb8/0x1b8 [scsi_mod]
> [   52.292000] Backtrace:
> [   52.320000]  [<00000000003e304c>] scsi_init_io+0x6c/0x258 [scsi_mod]
> [   52.396000]  [<000000000087d078>] sd_init_command+0x70/0xec8 [sd_mod]
> 
> In general I think the bug is somehow in blk-merge.c.
> But I'm not an expert in that code.

The warning was added in this patch sequence:
https://lkml.org/lkml/2015/11/23/996

Possibly, but above seems to indicate that it could be driver issue as well.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: SCSI bug
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On 2016-02-20, at 5:52 PM, John David Anglin wrote:

> On 2016-02-20, at 4:59 PM, Helge Deller wrote:
> 
>> On 20.02.2016 21:43, John David Anglin wrote:
>>> On 2016-02-20, at 3:13 PM, John David Anglin wrote:
>>> 
>>>> On 2016-01-23, at 1:00 PM, John David Anglin wrote:
>>>> 
>>>>> WARNING: at block/blk-merge.c:454
>>>> 
>>>> With linux-image-4.4.0-1-parisc64-smp on c3740, the above warning is the last message I see.
>>>> Kernel seems to hang at that point.  This is warning code:
>>>> 
>>>>      /*
>>>>       * Something must have been wrong if the figured number of
>>>>       * segment is bigger than number of req's physical segments
>>>>       */
>>>>      WARN_ON(nsegs > rq->nr_phys_segments);
>>> 
>>> On Sep. 12, 2015, I reported the following problem:
>>> 
>>> http://www.spinics.net/lists/linux-parisc/msg06327.html
>> 
>> The problem is still, that this bug can only be reproduced at every boot when then 
>> scsi drivers are built as modules (and in an initrd). I could never reproduce it when
>> I booted a kernel with built-in scsi drivers.
>> 
>> The bug seems to be triggered by(*nsegs)++ command in __blk_segment_map_sg() in block/blk-merge.c.
>> I'm testing with the 4.4.2 kernel from debian.
>> I modified __blk_segment_map_sg() like that:
>> static inline void
>> __blk_segment_map_sg(struct request_queue *q, struct bio_vec *bvec,
>>                    struct scatterlist *sglist, struct bio_vec *bvprv,
>>                    struct scatterlist **sg, int *nsegs, int *cluster)
>> {
>> 
>>       int nbytes = bvec->bv_len;
>> 
>>       if (*sg && *cluster) {
>>               if ((*sg)->length + nbytes > queue_max_segment_size(q))
>>                       goto new_segment;
>> 
>>               if (!BIOVEC_PHYS_MERGEABLE(bvprv, bvec))
>>                       goto new_segment;
>>               if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bvec))
>>                       goto new_segment;
>> 
>>               (*sg)->length += nbytes;
>>       } else {
>> new_segment:
>>               if (*sg && *cluster) {
>>                       printk("NEW SEGMENT sg = %p!!!\n", sg);
>>                       printk("__blk_segment_map_sg: length = %d, nbytes = %d, sum = %d > %d\n", (*sg)->length, nbytes, (*sg)->length + nbytes, queue_max_segment_size(q));
>>                       printk("__blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = %d, BIOVEC_SEG_BOUNDARY = %d\n", BIOVEC_PHYS_MERGEABLE(bvprv, bvec), BIOVEC_SEG_BOUNDARY(q, bvprv, bvec) );
>>               }
>>               if (!*sg)
>>                       *sg = sglist;
>>               else {
>>                       /*
>>                        * If the driver previously mapped a shorter
>>                        * list, we could see a termination bit
>>                        * prematurely unless it fully inits the sg
>>                        * table on each mapping. We KNOW that there
>>                        * must be more entries here or the driver
>>                        * would be buggy, so force clear the
>>                        * termination bit to avoid doing a full
>>                        * sg_init_table() in drivers for each command.
>>                        */
>>                       sg_unmark_end(*sg);
>>                       *sg = sg_next(*sg);
>>               }
>> 
>>               sg_set_page(*sg, bvec->bv_page, nbytes, bvec->bv_offset);
>>               (*nsegs)++;
>>       }
>>       *bvprv = *bvec;
>> }
>> 
>> The boot log looks then like this:
>> [   43.044000] scsi_init_sgtable: count = 1, nents = 1
>> (there are lots of those before it!)
>> [   43.164000] scsi_init_sgtable: nr_phys_segments = 1
>> [   43.164000] scsi_init_sgtable: count = 1, nents = 1
>> [   43.280000] scsi_init_sgtable: nr_phys_segments = 1
>> [   43.280000] scsi_init_sgtable: count = 1, nents = 1
>> [   43.396000] scsi_init_sgtable: nr_phys_segments = 1
>> [   43.396000] scsi_init_sgtable: count = 1, nents = 1
>> [   43.512000] scsi_init_sgtable: nr_phys_segments = 1
>> [   43.512000] scsi_init_sgtable: count = 1, nents = 1
>> [   43.628000] scsi_init_sgtable: nr_phys_segments = 3
>> [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
>> [   43.628000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
>> [   43.628000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   43.628000] scsi_init_sgtable: count = 3, nents = 3
>> [   44.224000] scsi_init_sgtable: nr_phys_segments = 1
>> [   44.224000] scsi_init_sgtable: count = 1, nents = 1
>> [   44.340000] scsi_init_sgtable: nr_phys_segments = 1
>> [   44.340000] scsi_init_sgtable: count = 1, nents = 1
>> [   44.456000] scsi_init_sgtable: nr_phys_segments = 7
>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   44.456000] scsi_init_sgtable: count = 7, nents = 7
>> [   44.456000] timer_interrupt(CPU 0): delayed! cycles 4527081F rem C6C21  next/now 14E153306E/14E146C44D
>> [   46.116000] scsi_init_sgtable: nr_phys_segments = 7
>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>> [   46.116000] __blk_segment_map_sg: length = 8192, nbytes = 4096, sum = 12288 > 65536
>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>> [   46.116000] __blk_segment_map_sg: length = 16384, nbytes = 4096, sum = 20480 > 65536
>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   46.116000] scsi_init_sgtable: count = 7, nents = 7
>> [   46.116000] timer_interrupt(CPU 0): delayed! cycles 453F0A77 rem 223089  next/now 152BB6286E/152B93F7E5
>> [   47.780000] scsi_init_sgtable: nr_phys_segments = 1
>> [   47.780000] scsi_init_sgtable: count = 1, nents = 1
>> [   47.896000] scsi_init_sgtable: nr_phys_segments = 6
>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>> [   47.896000] __blk_segment_map_sg: length = 61440, nbytes = 4096, sum = 65536 > 65536
>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>> [   47.896000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>> [   47.896000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>> [   47.896000] __blk_segment_map_sg: length = 8192, nbytes = 4096, sum = 12288 > 65536
>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>> [   47.896000] __blk_segment_map_sg: length = 8192, nbytes = 4096, sum = 12288 > 65536
>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   47.896000] scsi_init_sgtable: count = 6, nents = 6
>> [   47.896000] timer_interrupt(CPU 0): delayed! cycles 3AB087E2 rem 23E4DE  next/now 1570BBD5EE/157097F110
>> [   49.324000] scsi_init_sgtable: nr_phys_segments = 1
>> [   49.324000] scsi_init_sgtable: count = 1, nents = 1
>> [   49.440000] scsi_init_sgtable: nr_phys_segments = 2
>> [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
>> [   49.440000] __blk_segment_map_sg: length = 65536, nbytes = 4096, sum = 69632 > 65536
>> 
>> (this is interesting! Here we reach a sum of > 65536 the first time)
>> 
>> [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 1, BIOVEC_SEG_BOUNDARY = 1
>> [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
>> [   49.440000] __blk_segment_map_sg: length = 16384, nbytes = 4096, sum = 20480 > 65536
>> [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
>> [   49.440000] *** FIXIT *** HELGE: nsegs > rq->nr_phys_segments = 3 > 2
>> [   49.440000] scsi_init_sgtable: count = 3, nents = 2
>> [   50.116000] ------------[ cut here ]------------
>> [   50.172000] WARNING: at /build/linux-4.4/linux-4.4.2/drivers/scsi/scsi_lib.c:1104
>> 
>> (this is usually a BUG(). I changed it to WARN() in the hope it would work anyway. It didn't.)
>> 
>> [   50.260000] Modules linked in: sd_mod sr_mod cdrom ata_generic ohci_pci ehci_pci ohci_hcd ehci_hcd pata_ns87415 sym53c8xx libata scsi_transport_spi scsi_mod usbcorep
>> [   50.456000] CPU: 0 PID: 70 Comm: systemd-udevd Not tainted 4.4.0-1-parisc64-smp #5 Debian 4.4.2-2
>> [   50.564000] task: 000000007f948b28 ti: 000000007fa90000 task.ti: 000000007fa90000
>> [   50.652000] 
>> [   50.672000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>> [   50.728000] PSW: 00001000000001001111100100001110 Not tainted
>> [   50.796000] r00-03  000000ff0804f90e 00000000409ea2e0 00000000003e2ee0 000000007fa91140
>> [   50.892000] r04-07  00000000003cd000 000000007f914300 000000007f914b10 0000000000000003
>> [   50.988000] r08-11  0000000000000000 000000007f918000 0000000040bdd6b0 00000000003cd800
>> [   51.084000] r12-15  0000000000000000 000000007fa90778 00000000003cd000 000000007f918000
>> [   51.180000] r16-19  0000000000001300 0000000040bdd6b8 0000000040bdd6bc 0000000040ba2420
>> [   51.276000] r20-23  0000000099116e92 0000000000000000 00000000000002a0 00000000000002ee
>> [   51.372000] r24-27  0000000000000000 000000000800000e 0000000040b60750 00000000409b3ae0
>> [   51.468000] r28-31  0000000000000002 000000007fa914f0 000000007fa911e0 0000000040ba2408
>> [   51.564000] sr00-03  0000000000015000 0000000000000000 0000000000000000 0000000000015000
>> [   51.660000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
>> [   51.756000] 
>> [   51.772000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000003e2f24 00000000003e2f28
>> [   51.872000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000fea4691528
>> [   51.956000]  CPU:        0   CR30: 000000007fa90000 CR31: 00000000ffff7dff
>> [   52.040000]  ORIG_R28: 0000000040b60718
>> [   52.084000]  IAOQ[0]: scsi_init_sgtable+0xfc/0x1b8 [scsi_mod]
>> [   52.152000]  IAOQ[1]: scsi_init_sgtable+0x100/0x1b8 [scsi_mod]
>> [   52.224000]  RP(r2): scsi_init_sgtable+0xb8/0x1b8 [scsi_mod]
>> [   52.292000] Backtrace:
>> [   52.320000]  [<00000000003e304c>] scsi_init_io+0x6c/0x258 [scsi_mod]
>> [   52.396000]  [<000000000087d078>] sd_init_command+0x70/0xec8 [sd_mod]
>> 
>> In general I think the bug is somehow in blk-merge.c.
>> But I'm not an expert in that code.
> 
> The warning was added in this patch sequence:
> https://lkml.org/lkml/2015/11/23/996
> 
> Possibly, but above seems to indicate that it could be driver issue as well.


I believe this bug was introduced by the following merge:

commit 1081230b748de8f03f37f80c53dfa89feda9b8de
Merge: df91039 2ca495a
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Wed Sep 2 13:10:25 2015 -0700

    Merge branch 'for-4.3/core' of git://git.kernel.dk/linux-block
    
    Pull core block updates from Jens Axboe:
     "This first core part of the block IO changes contains:
    
       - Cleanup of the bio IO error signaling from Christoph.  We used to
         rely on the uptodate bit and passing around of an error, now we
         store the error in the bio itself.
    
       - Improvement of the above from myself, by shrinking the bio size
         down again to fit in two cachelines on x86-64.
    
       - Revert of the max_hw_sectors cap removal from a revision again,
         from Jeff Moyer.  This caused performance regressions in various
         tests.  Reinstate the limit, bump it to a more reasonable size
         instead.
    
       - Make /sys/block/<dev>/queue/discard_max_bytes writeable, by me.
         Most devices have huge trim limits, which can cause nasty latencies
         when deleting files.  Enable the admin to configure the size down.
         We will look into having a more sane default instead of UINT_MAX
         sectors.
    
       - Improvement of the SGP gaps logic from Keith Busch.
    
       - Enable the block core to handle arbitrarily sized bios, which
         enables a nice simplification of bio_add_page() (which is an IO hot
         path).  From Kent.
    
       - Improvements to the partition io stats accounting, making it
         faster.  From Ming Lei.
    
       - Also from Ming Lei, a basic fixup for overflow of the sysfs pending
         file in blk-mq, as well as a fix for a blk-mq timeout race
         condition.
    
       - Ming Lin has been carrying Kents above mentioned patches forward
         for a while, and testing them.  Ming also did a few fixes around
         that.
    
       - Sasha Levin found and fixed a use-after-free problem introduced by
         the bio->bi_error changes from Christoph.
    
       - Small blk cgroup cleanup from Viresh Kumar"
    
    * 'for-4.3/core' of git://git.kernel.dk/linux-block: (26 commits)
      blk: Fix bio_io_vec index when checking bvec gaps
      block: Replace SG_GAPS with new queue limits mask
      block: bump BLK_DEF_MAX_SECTORS to 2560
      Revert "block: remove artifical max_hw_sectors cap"
      blk-mq: fix race between timeout and freeing request
      blk-mq: fix buffer overflow when reading sysfs file of 'pending'
      Documentation: update notes in biovecs about arbitrarily sized bios
      block: remove bio_get_nr_vecs()
      fs: use helper bio_add_page() instead of open coding on bi_io_vec
      block: kill merge_bvec_fn() completely
      md/raid5: get rid of bio_fits_rdev()
      md/raid5: split bio for chunk_aligned_read
      block: remove split code in blkdev_issue_{discard,write_same}
      btrfs: remove bio splitting and merge_bvec_fn() calls
      bcache: remove driver private bio splitting code
      block: simplify bio_add_page()
      block: make generic_make_request handle arbitrarily sized bios
      blk-cgroup: Drop unlikely before IS_ERR(_OR_NULL)
      block: don't access bio->bi_error after bio_put()
      block: shrink struct bio down to 2 cache lines again
      ...

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1081230b748de8f03f37f80c53dfa89feda9b8de

Dave
--
John David Anglin	dave.anglin@bell.net



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On 2016-02-20, at 10:47 PM, James Bottomley wrote:

> On Sat, 2016-02-20 at 21:52 -0500, John David Anglin wrote:
>> On 2016-02-20, at 5:52 PM, John David Anglin wrote:
>> 
>>> On 2016-02-20, at 4:59 PM, Helge Deller wrote:
>>> 
>>>> On 20.02.2016 21:43, John David Anglin wrote:
>>>>> On 2016-02-20, at 3:13 PM, John David Anglin wrote:
>>>>> 
>>>>>> On 2016-01-23, at 1:00 PM, John David Anglin wrote:
>>>>>> 
>>>>>>> WARNING: at block/blk-merge.c:454
>>>>>> 
>>>>>> With linux-image-4.4.0-1-parisc64-smp on c3740, the above
>>>>>> warning is the last message I see.
>>>>>> Kernel seems to hang at that point.  This is warning code:
>>>>>> 
>>>>>>     /*
>>>>>>      * Something must have been wrong if the figured number
>>>>>> of
>>>>>>      * segment is bigger than number of req's physical
>>>>>> segments
>>>>>>      */
>>>>>>     WARN_ON(nsegs > rq->nr_phys_segments);
>>>>> 
>>>>> On Sep. 12, 2015, I reported the following problem:
>>>>> 
>>>>> http://www.spinics.net/lists/linux-parisc/msg06327.html
>>>> 
>>>> The problem is still, that this bug can only be reproduced at
>>>> every boot when then 
>>>> scsi drivers are built as modules (and in an initrd). I could
>>>> never reproduce it when
>>>> I booted a kernel with built-in scsi drivers.
>>>> 
>>>> The bug seems to be triggered by(*nsegs)++ command in
>>>> __blk_segment_map_sg() in block/blk-merge.c.
>>>> I'm testing with the 4.4.2 kernel from debian.
>>>> I modified __blk_segment_map_sg() like that:
>>>> static inline void
>>>> __blk_segment_map_sg(struct request_queue *q, struct bio_vec
>>>> *bvec,
>>>>                   struct scatterlist *sglist, struct bio_vec
>>>> *bvprv,
>>>>                   struct scatterlist **sg, int *nsegs, int
>>>> *cluster)
>>>> {
>>>> 
>>>>      int nbytes = bvec->bv_len;
>>>> 
>>>>      if (*sg && *cluster) {
>>>>              if ((*sg)->length + nbytes >
>>>> queue_max_segment_size(q))
>>>>                      goto new_segment;
>>>> 
>>>>              if (!BIOVEC_PHYS_MERGEABLE(bvprv, bvec))
>>>>                      goto new_segment;
>>>>              if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bvec))
>>>>                      goto new_segment;
>>>> 
>>>>              (*sg)->length += nbytes;
>>>>      } else {
>>>> new_segment:
>>>>              if (*sg && *cluster) {
>>>>                      printk("NEW SEGMENT sg = %p!!!\n", sg);
>>>>                      printk("__blk_segment_map_sg: length = %d,
>>>> nbytes = %d, sum = %d > %d\n", (*sg)->length, nbytes, (*sg)
>>>> ->length + nbytes, queue_max_segment_size(q));
>>>>                      printk("__blk_segment_map_sg:
>>>> BIOVEC_PHYS_MERGEABLE = %d, BIOVEC_SEG_BOUNDARY = %d\n",
>>>> BIOVEC_PHYS_MERGEABLE(bvprv, bvec), BIOVEC_SEG_BOUNDARY(q, bvprv,
>>>> bvec) );
>>>>              }
>>>>              if (!*sg)
>>>>                      *sg = sglist;
>>>>              else {
>>>>                      /*
>>>>                       * If the driver previously mapped a
>>>> shorter
>>>>                       * list, we could see a termination bit
>>>>                       * prematurely unless it fully inits the sg
>>>>                       * table on each mapping. We KNOW that
>>>> there
>>>>                       * must be more entries here or the driver
>>>>                       * would be buggy, so force clear the
>>>>                       * termination bit to avoid doing a full
>>>>                       * sg_init_table() in drivers for each
>>>> command.
>>>>                       */
>>>>                      sg_unmark_end(*sg);
>>>>                      *sg = sg_next(*sg);
>>>>              }
>>>> 
>>>>              sg_set_page(*sg, bvec->bv_page, nbytes, bvec
>>>> ->bv_offset);
>>>>              (*nsegs)++;
>>>>      }
>>>>      *bvprv = *bvec;
>>>> }
>>>> 
>>>> The boot log looks then like this:
>>>> [   43.044000] scsi_init_sgtable: count = 1, nents = 1
>>>> (there are lots of those before it!)
>>>> [   43.164000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   43.164000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   43.280000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   43.280000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   43.396000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   43.396000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   43.512000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   43.512000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   43.628000] scsi_init_sgtable: nr_phys_segments = 3
>>>> [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   43.628000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   43.628000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   43.628000] scsi_init_sgtable: count = 3, nents = 3
>>>> [   44.224000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   44.224000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   44.340000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   44.340000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   44.456000] scsi_init_sgtable: nr_phys_segments = 7
>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   44.456000] scsi_init_sgtable: count = 7, nents = 7
>>>> [   44.456000] timer_interrupt(CPU 0): delayed! cycles 4527081F
>>>> rem C6C21  next/now 14E153306E/14E146C44D
>>>> [   46.116000] scsi_init_sgtable: nr_phys_segments = 7
>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   46.116000] __blk_segment_map_sg: length = 8192, nbytes =
>>>> 4096, sum = 12288 > 65536
>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   46.116000] __blk_segment_map_sg: length = 16384, nbytes =
>>>> 4096, sum = 20480 > 65536
>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   46.116000] scsi_init_sgtable: count = 7, nents = 7
>>>> [   46.116000] timer_interrupt(CPU 0): delayed! cycles 453F0A77
>>>> rem 223089  next/now 152BB6286E/152B93F7E5
>>>> [   47.780000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   47.780000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   47.896000] scsi_init_sgtable: nr_phys_segments = 6
>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   47.896000] __blk_segment_map_sg: length = 61440, nbytes =
>>>> 4096, sum = 65536 > 65536
>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   47.896000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   47.896000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   47.896000] __blk_segment_map_sg: length = 8192, nbytes =
>>>> 4096, sum = 12288 > 65536
>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   47.896000] __blk_segment_map_sg: length = 8192, nbytes =
>>>> 4096, sum = 12288 > 65536
>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   47.896000] scsi_init_sgtable: count = 6, nents = 6
>>>> [   47.896000] timer_interrupt(CPU 0): delayed! cycles 3AB087E2
>>>> rem 23E4DE  next/now 1570BBD5EE/157097F110
>>>> [   49.324000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   49.324000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   49.440000] scsi_init_sgtable: nr_phys_segments = 2
>>>> [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   49.440000] __blk_segment_map_sg: length = 65536, nbytes =
>>>> 4096, sum = 69632 > 65536
>>>> 
>>>> (this is interesting! Here we reach a sum of > 65536 the first
>>>> time)
>>>> 
>>>> [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 1,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   49.440000] __blk_segment_map_sg: length = 16384, nbytes =
>>>> 4096, sum = 20480 > 65536
>>>> [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   49.440000] *** FIXIT *** HELGE: nsegs > rq->nr_phys_segments
>>>> = 3 > 2
>>>> [   49.440000] scsi_init_sgtable: count = 3, nents = 2
>>>> [   50.116000] ------------[ cut here ]------------
>>>> [   50.172000] WARNING: at /build/linux-4.4/linux
>>>> -4.4.2/drivers/scsi/scsi_lib.c:1104
>>>> 
>>>> (this is usually a BUG(). I changed it to WARN() in the hope it
>>>> would work anyway. It didn't.)
>>>> 
>>>> [   50.260000] Modules linked in: sd_mod sr_mod cdrom ata_generic
>>>> ohci_pci ehci_pci ohci_hcd ehci_hcd pata_ns87415 sym53c8xx libata
>>>> scsi_transport_spi scsi_mod usbcorep
>>>> [   50.456000] CPU: 0 PID: 70 Comm: systemd-udevd Not tainted
>>>> 4.4.0-1-parisc64-smp #5 Debian 4.4.2-2
>>>> [   50.564000] task: 000000007f948b28 ti: 000000007fa90000
>>>> task.ti: 000000007fa90000
>>>> [   50.652000] 
>>>> [   50.672000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>>> [   50.728000] PSW: 00001000000001001111100100001110 Not tainted
>>>> [   50.796000] r00-03  000000ff0804f90e 00000000409ea2e0
>>>> 00000000003e2ee0 000000007fa91140
>>>> [   50.892000] r04-07  00000000003cd000 000000007f914300
>>>> 000000007f914b10 0000000000000003
>>>> [   50.988000] r08-11  0000000000000000 000000007f918000
>>>> 0000000040bdd6b0 00000000003cd800
>>>> [   51.084000] r12-15  0000000000000000 000000007fa90778
>>>> 00000000003cd000 000000007f918000
>>>> [   51.180000] r16-19  0000000000001300 0000000040bdd6b8
>>>> 0000000040bdd6bc 0000000040ba2420
>>>> [   51.276000] r20-23  0000000099116e92 0000000000000000
>>>> 00000000000002a0 00000000000002ee
>>>> [   51.372000] r24-27  0000000000000000 000000000800000e
>>>> 0000000040b60750 00000000409b3ae0
>>>> [   51.468000] r28-31  0000000000000002 000000007fa914f0
>>>> 000000007fa911e0 0000000040ba2408
>>>> [   51.564000] sr00-03  0000000000015000 0000000000000000
>>>> 0000000000000000 0000000000015000
>>>> [   51.660000] sr04-07  0000000000000000 0000000000000000
>>>> 0000000000000000 0000000000000000
>>>> [   51.756000] 
>>>> [   51.772000] IASQ: 0000000000000000 0000000000000000 IAOQ:
>>>> 00000000003e2f24 00000000003e2f28
>>>> [   51.872000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR:
>>>> 000000fea4691528
>>>> [   51.956000]  CPU:        0   CR30: 000000007fa90000 CR31:
>>>> 00000000ffff7dff
>>>> [   52.040000]  ORIG_R28: 0000000040b60718
>>>> [   52.084000]  IAOQ[0]: scsi_init_sgtable+0xfc/0x1b8 [scsi_mod]
>>>> [   52.152000]  IAOQ[1]: scsi_init_sgtable+0x100/0x1b8 [scsi_mod]
>>>> [   52.224000]  RP(r2): scsi_init_sgtable+0xb8/0x1b8 [scsi_mod]
>>>> [   52.292000] Backtrace:
>>>> [   52.320000]  [<00000000003e304c>] scsi_init_io+0x6c/0x258
>>>> [scsi_mod]
>>>> [   52.396000]  [<000000000087d078>] sd_init_command+0x70/0xec8
>>>> [sd_mod]
>>>> 
>>>> In general I think the bug is somehow in blk-merge.c.
>>>> But I'm not an expert in that code.
>>> 
>>> The warning was added in this patch sequence:
>>> https://lkml.org/lkml/2015/11/23/996
>>> 
>>> Possibly, but above seems to indicate that it could be driver issue
>>> as well.
>> 
>> 
>> I believe this bug was introduced by the following merge:
>> 
>> commit 1081230b748de8f03f37f80c53dfa89feda9b8de
>> Merge: df91039 2ca495a
>> Author: Linus Torvalds <torvalds@linux-foundation.org>
>> Date:   Wed Sep 2 13:10:25 2015 -0700
>> 
>>    Merge branch 'for-4.3/core' of git://git.kernel.dk/linux-block
>> 
>>    Pull core block updates from Jens Axboe:
>>     "This first core part of the block IO changes contains:
>> 
>>       - Cleanup of the bio IO error signaling from Christoph.  We
>> used to
>>         rely on the uptodate bit and passing around of an error, now
>> we
>>         store the error in the bio itself.
>> 
>>       - Improvement of the above from myself, by shrinking the bio
>> size
>>         down again to fit in two cachelines on x86-64.
>> 
>>       - Revert of the max_hw_sectors cap removal from a revision
>> again,
>>         from Jeff Moyer.  This caused performance regressions in
>> various
>>         tests.  Reinstate the limit, bump it to a more reasonable
>> size
>>         instead.
>> 
>>       - Make /sys/block/<dev>/queue/discard_max_bytes writeable, by
>> me.
>>         Most devices have huge trim limits, which can cause nasty
>> latencies
>>         when deleting files.  Enable the admin to configure the size
>> down.
>>         We will look into having a more sane default instead of
>> UINT_MAX
>>         sectors.
>> 
>>       - Improvement of the SGP gaps logic from Keith Busch.
>> 
>>       - Enable the block core to handle arbitrarily sized bios,
>> which
>>         enables a nice simplification of bio_add_page() (which is an
>> IO hot
>>         path).  From Kent.
>> 
>>       - Improvements to the partition io stats accounting, making it
>>         faster.  From Ming Lei.
>> 
>>       - Also from Ming Lei, a basic fixup for overflow of the sysfs
>> pending
>>         file in blk-mq, as well as a fix for a blk-mq timeout race
>>         condition.
>> 
>>       - Ming Lin has been carrying Kents above mentioned patches
>> forward
>>         for a while, and testing them.  Ming also did a few fixes
>> around
>>         that.
>> 
>>       - Sasha Levin found and fixed a use-after-free problem
>> introduced by
>>         the bio->bi_error changes from Christoph.
>> 
>>       - Small blk cgroup cleanup from Viresh Kumar"
>> 
>>    * 'for-4.3/core' of git://git.kernel.dk/linux-block: (26 commits)
>>      blk: Fix bio_io_vec index when checking bvec gaps
>>      block: Replace SG_GAPS with new queue limits mask
>>      block: bump BLK_DEF_MAX_SECTORS to 2560
>>      Revert "block: remove artifical max_hw_sectors cap"
>>      blk-mq: fix race between timeout and freeing request
>>      blk-mq: fix buffer overflow when reading sysfs file of
>> 'pending'
>>      Documentation: update notes in biovecs about arbitrarily sized
>> bios
>>      block: remove bio_get_nr_vecs()
>>      fs: use helper bio_add_page() instead of open coding on
>> bi_io_vec
>>      block: kill merge_bvec_fn() completely
>>      md/raid5: get rid of bio_fits_rdev()
>>      md/raid5: split bio for chunk_aligned_read
>>      block: remove split code in blkdev_issue_{discard,write_same}
>>      btrfs: remove bio splitting and merge_bvec_fn() calls
>>      bcache: remove driver private bio splitting code
>>      block: simplify bio_add_page()
>>      block: make generic_make_request handle arbitrarily sized bios
>>      blk-cgroup: Drop unlikely before IS_ERR(_OR_NULL)
>>      block: don't access bio->bi_error after bio_put()
>>      block: shrink struct bio down to 2 cache lines again
>>      ...
> 
> If you can bisect it down to the exact commit, I might be able to work
> out what's the problem.  Otherwise, even in an all modular config, I
> can't reproduce this on 4.5-rc4, so it may be fixed upstream (just not
> backported).


I tried HEAD this morning and problem is still present.  The warning in blk-merge.c occurs
first followed by BUG:
kernel BUG at drivers/scsi/scsi_lib.c:1097! 

Entire console output is shown below:
                              
reboot: Restarting system                                                       
                                                                                
Firmware Version  2.12                                                          
                                                                                
Duplex Console IO Dependent Code (IODC) revision 1                              
------------------------------------------------------------------------------  
   (c) Copyright 1995-2004, Hewlett-Packard Company, All rights reserved        
------------------------------------------------------------------------------  
                                                                                
  Processor   Speed            State           CoProcessor        Cache Size    
  Number                                       State              Inst    Data  
  ---------  --------   ---------------------  -----------------  ------------  
      0      1000 MHz   Active                 Functional         32 MB/32 MB   
      1      1000 MHz   Idle                   Functional         32 MB/32 MB   
      2      1000 MHz   Idle                   Functional         32 MB/32 MB   
      3      1000 MHz   Idle                   Functional         32 MB/32 MB   
                                                                                
  Central Bus Speed (in MHz)  :        200                                      
  Available Memory            :   12582912  KB                                  
  Good Memory Required        : Not initialized. Defaults to 32 MB.             
                                                                                
   Primary boot path:    scsiA.0                                                
                         0/2/1/0.0                                              
   Alternate boot path:  lan.0.0.0.0                                            
                         0/3/3/0                                                
   Console path:         serial_A.643                                           
                         17.643                                                 
   Keyboard path:        usb0                                                   
                         0/3/1/0.0                                              
   Keyboard path ignored for serial consoles.                                   
                                                                                
                                                                                
                                                                                
                                                                                
---- Main Menu ---------------------------------------------------------------  
                                                                                
     Command                           Description                              
     -------                           -----------                              
     BOot [PRI|ALT|<path>]             Boot from specified path                 
     PAth [PRI|ALT|CON|KEY [<path>]]   Display or change a path                 
     SEArch [DIsplay|[[IPL] [<path>]]] Search for boot devices                  
                                                                                
     COnfiguration menu                Displays or sets boot values             
     INformation menu                  Displays hardware information            
     SERvice menu                      Displays service commands                
                                                                                
     DIsplay                           Redisplay the current menu               
     HElp [<menu>|<command>]           Display help for menu or command         
     RESET                             Restart the system                       
----                                                                            
Main Menu: Enter command or menu > bo                                           
Interact with IPL (Y, N, or Cancel)?> n                                         
                                                                                
Booting...                                                                      
Boot IO Dependent Code (IODC) revision 2                                        
                                                                                
                                                                                
HARD Booted.                                                                    
palo ipl 1.92 root@c3000 Wed Oct  9 21:48:57 CEST 2013                          
                                                                                
Partition Start(MB) End(MB) Id Type                                             
1               1      62   f0 Palo                                             
2              63     305   83 ext2                                             
3             306    2259   82 swap                                             
4            2260   70007   83 ext2                                             
                                                                                
PALO(F0) partition contains:                                                    
    0/vmlinux64 3063747(8270074) bytes @ 0x48000                                
                                                                                
Command line for kernel: 'root=/dev/sda4 console=ttyS0 HOME=/ rootfstype=ext3 c'
Selected kernel: /vmlinuz from partition 2                                      
Selected ramdisk: /initrd.img from partition 2                                  
uncompressing Linux kernel.....................................................2
.                                                                               
ELF64 executable                                                                
Entry 00100000 first 00100000 n 2                                               
Segment 0 load 00100000 size 215488 mediaptr 0x1000                             
Segment 1 load 00135000 size 7706288 mediaptr 0x36000                           
Loading ramdisk 10819353 bytes @ 3e19d000...                                    
Branching to kernel entry point 0x00100000.  If this is the last                
message you see, you may need to switch your console.  This is                  
a common symptom -- search the FAQ and mailing list at parisc-linux.org         
                                                                                
Linux version 4.5.0-rc5 (dave@atlas) (gcc version 4.9.3 (GCC) ) #1 SMP Sun Feb 6
unwind_init: start = 0x407398b0, end = 0x40776820, entries = 15607              
FP[0] enabled: Rev 1 Model 20                                                   
The 64-bit Kernel has started...                                                
Kernel default page size is 4 KB. Huge pages disabled.                          
bootconsole [ttyB0] enabled                                                     
Initialized PDC Console for debugging.                                          
Determining PDC firmware type: 64 bit PAT.                                      
model 000088b0 00000491 00000000 00000002 56bb5389fb0d1ec0 100000f0 00000008 002
vers  00000302                                                                  
CPUID vers 20 rev 5 (0x00000285)                                                
capabilities 0x35                                                               
model 9000/785/C8000                                                            
parisc_cache_init: Only equivalent aliasing supported!                          
Memory Ranges:                                                                  
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB              
 1) Start 0x0000000100000000 End 0x00000002ffdfffff Size   8190 MB              
 2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB              
Total Memory: 12286 MB                                                          
initrd: 7e19d000-7ebee719                                                       
initrd: reserving 3e19d000-3ebee719 (mem_max 2ffe00000)                         
PERCPU: Embedded 17 pages/cpu @0000000042e11000 s29936 r8192 d31504 u69632      
SMP: bootstrap CPU ID is 0                                                      
Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 3102215    
Kernel command line: root=/dev/sda4 console=ttyS0 HOME=/ rootfstype=ext3 clocksz
log_buf_len individual max cpu contribution: 4096 bytes                         
log_buf_len total cpu_extra contributions: 126976 bytes                         
log_buf_len min size: 131072 bytes                                              
log_buf_len: 262144 bytes                                                       
early log buf free: 127768(97%)                                                 
PID hash table entries: 4096 (order: 3, 32768 bytes)                            
Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)            
Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)              
Sorting __ex_table...                                                           
Memory: 12338568K/12580864K available (4668K kernel code, 1515K rwdata, 842K ro)
virtual kernel memory layout:                                                   
   vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)                
   memory  : 0x0000000040000000 - 0x0000004140000000   (266240 MB)              
     .init : 0x0000000040100000 - 0x0000000040145000   ( 276 kB)                
     .data : 0x00000000405d4000 - 0x0000000040821530   (2357 kB)                
     .text : 0x0000000040145000 - 0x00000000405d4000   (4668 kB)                
Hierarchical RCU implementation.                                                
        Build-time adjustment of leaf fanout to 64.                             
NR_IRQS:128                                                                     
clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idles
Console: colour dummy device 160x64                                             
------------------------                                                        
| Locking API testsuite:                                                        
----------------------------------------------------------------------------    
                                 | spin |wlock |rlock |mutex | wsem | rsem |    
  --------------------------------------------------------------------------    
                     A-A deadlock:failed|failed|  ok  |failed|failed|failed|    
                 A-B-B-A deadlock:failed|failed|  ok  |failed|failed|failed|    
             A-B-B-C-C-A deadlock:failed|failed|  ok  |failed|failed|failed|    
             A-B-C-A-B-C deadlock:failed|failed|  ok  |failed|failed|failed|    
         A-B-B-C-C-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|    
         A-B-C-D-B-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|    
         A-B-C-D-B-C-D-A deadlock:failed|failed|  ok  |failed|failed|failed|    
                    double unlock:failed|failed|failed|  ok  |failed|failed|    
                  initialize held:failed|failed|failed|failed|failed|failed|    
                 bad unlock order:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |    
  --------------------------------------------------------------------------    
              recursive read-lock:             |  ok  |             |failed|    
           recursive read-lock #2:             |  ok  |             |failed|    
            mixed read-write-lock:             |failed|             |failed|    
            mixed write-read-lock:             |failed|             |failed|    
  --------------------------------------------------------------------------    
     hard-irqs-on + irq-safe-A/12:failed|failed|  ok  |                         
     soft-irqs-on + irq-safe-A/12:failed|failed|  ok  |                         
     hard-irqs-on + irq-safe-A/21:failed|failed|  ok  |                         
     soft-irqs-on + irq-safe-A/21:failed|failed|  ok  |                         
       sirq-safe-A => hirqs-on/12:failed|failed|  ok  |                         
       sirq-safe-A => hirqs-on/21:failed|failed|  ok  |                         
         hard-safe-A + irqs-on/12:failed|failed|  ok  |                         
         soft-safe-A + irqs-on/12:failed|failed|  ok  |                         
         hard-safe-A + irqs-on/21:failed|failed|  ok  |                         
         soft-safe-A + irqs-on/21:failed|failed|  ok  |                         
    hard-safe-A + unsafe-B #1/123:failed|failed|  ok  |                         
    soft-safe-A + unsafe-B #1/123:failed|failed|  ok  |                         
    hard-safe-A + unsafe-B #1/132:failed|failed|  ok  |                         
    soft-safe-A + unsafe-B #1/132:failed|failed|  ok  |                         
    hard-safe-A + unsafe-B #1/213:failed|failed|  ok  |                         
    soft-safe-A + unsafe-B #1/213:failed|failed|  ok  |                         
    hard-safe-A + unsafe-B #1/231:failed|failed|  ok  |                         
    soft-safe-A + unsafe-B #1/231:failed|failed|  ok  |                         
    hard-safe-A + unsafe-B #1/312:failed|failed|  ok  |                         
    soft-safe-A + unsafe-B #1/312:failed|failed|  ok  |                         
    hard-safe-A + unsafe-B #1/321:failed|failed|  ok  |                         
    soft-safe-A + unsafe-B #1/321:failed|failed|  ok  |                         
    hard-safe-A + unsafe-B #2/123:failed|failed|  ok  |                         
    soft-safe-A + unsafe-B #2/123:failed|failed|  ok  |                         
    hard-safe-A + unsafe-B #2/132:failed|failed|  ok  |                         
    soft-safe-A + unsafe-B #2/132:failed|failed|  ok  |                         
    hard-safe-A + unsafe-B #2/213:failed|failed|  ok  |                         
    soft-safe-A + unsafe-B #2/213:failed|failed|  ok  |                         
    hard-safe-A + unsafe-B #2/231:failed|failed|  ok  |                         
    soft-safe-A + unsafe-B #2/231:failed|failed|  ok  |                         
    hard-safe-A + unsafe-B #2/312:failed|failed|  ok  |                         
    soft-safe-A + unsafe-B #2/312:failed|failed|  ok  |                         
    hard-safe-A + unsafe-B #2/321:failed|failed|  ok  |                         
    soft-safe-A + unsafe-B #2/321:failed|failed|  ok  |                         
      hard-irq lock-inversion/123:failed|failed|  ok  |                         
      soft-irq lock-inversion/123:failed|failed|  ok  |                         
      hard-irq lock-inversion/132:failed|failed|  ok  |                         
      soft-irq lock-inversion/132:failed|failed|  ok  |                         
      hard-irq lock-inversion/213:failed|failed|  ok  |                         
      soft-irq lock-inversion/213:failed|failed|  ok  |                         
      hard-irq lock-inversion/231:failed|failed|  ok  |                         
      soft-irq lock-inversion/231:failed|failed|  ok  |                         
      hard-irq lock-inversion/312:failed|failed|  ok  |                         
      soft-irq lock-inversion/312:failed|failed|  ok  |                         
      hard-irq lock-inversion/321:failed|failed|  ok  |                         
      soft-irq lock-inversion/321:failed|failed|  ok  |                         
      hard-irq read-recursion/123:  ok  |                                       
      soft-irq read-recursion/123:  ok  |                                       
      hard-irq read-recursion/132:  ok  |                                       
      soft-irq read-recursion/132:  ok  |                                       
      hard-irq read-recursion/213:  ok  |                                       
      soft-irq read-recursion/213:  ok  |                                       
      hard-irq read-recursion/231:  ok  |                                       
      soft-irq read-recursion/231:  ok  |                                       
      hard-irq read-recursion/312:  ok  |                                       
      soft-irq read-recursion/312:  ok  |                                       
      hard-irq read-recursion/321:  ok  |                                       
      soft-irq read-recursion/321:  ok  |                                       
  --------------------------------------------------------------------------    
  | Wound/wait tests |                                                          
  ---------------------                                                         
                  ww api failures:  ok  |  ok  |  ok  |                         
               ww contexts mixing:failed|  ok  |                                
             finishing ww context:  ok  |  ok  |  ok  |  ok  |                  
               locking mismatches:  ok  |  ok  |  ok  |                         
                 EDEADLK handling:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |  o|
           spinlock nest unlocked:failed|                                       
  -----------------------------------------------------                         
                                 |block | try  |context|                        
  -----------------------------------------------------                         
                          context:failed|  ok  |  ok  |                         
                              try:failed|  ok  |failed|                         
                            block:failed|  ok  |failed|                         
                         spinlock:failed|  ok  |failed|                         
--------------------------------------------------------                        
153 out of 253 testcases failed, as expected. |                                 
----------------------------------------------------                            
Calibrating delay loop... 1993.93 BogoMIPS (lpj=9969664)                        
pid_max: default: 32768 minimum: 301                                            
Mount-cache hash table entries: 32768 (order: 6, 262144 bytes)                  
Mountpoint-cache hash table entries: 32768 (order: 6, 262144 bytes)             
Brought up 1 CPUs                                                               
devtmpfs: initialized                                                           
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 191s
atomic64_test: passed                                                           
NET: Registered protocol family 16                                              
Searching for devices...                                                        
Found devices:                                                                  
1. Crestone Peak Fast? at 0xfffffffffe780000 [128] { 0, 0x0, 0x88b, 0x00004 }   
2. Crestone Peak Fast? at 0xfffffffffe781000 [129] { 0, 0x0, 0x88b, 0x00004 }   
3. Crestone Peak Fast? at 0xfffffffffe798000 [152] { 0, 0x0, 0x88b, 0x00004 }   
4. Crestone Peak Fast? at 0xfffffffffe799000 [153] { 0, 0x0, 0x88b, 0x00004 }   
5. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0b6, 0x00009 }                  
6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c } 
7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }   
8. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }   
9. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }   
10. Quicksilver AGP Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x784, 0x0000}
11. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }   
12. Crestone Peak Fast? Core RS-232 at 0xfffffff0f05e0000 [17] { 10, 0x0, 0x077}
13. Crestone Peak Fast? Core RS-232 at 0xfffffff0f05e2000 [18] { 10, 0x0, 0x077}
Enabling PDC_PAT chassis codes support v0.05                                    
Releasing cpu 1 now, hpa=fffffffffe781000                                       
FP[1] enabled: Rev 1 Model 20                                                   
Releasing cpu 2 now, hpa=fffffffffe798000                                       
FP[2] enabled: Rev 1 Model 20                                                   
Releasing cpu 3 now, hpa=fffffffffe799000                                       
FP[3] enabled: Rev 1 Model 20                                                   
CPU(s): 4 out of 4 PA8800 (Mako) at 1000.000000 MHz online                      
Setting cache flush threshold to 32768 kB                                       
Setting TLB flush threshold to 1236 kB                                          
SBA found Pluto 2.3 at 0xfffffffffed00000                                       
Mercury version TR3.2 (0x32) found at 0xfffffffffed20000                        
LBA: lmmio_space [0xffffffff80000000-0xffffffff9fffffff] - new                  
LBA 0:0: PCI host bridge to bus 0000:00                                         
pci_bus 0000:00: root bus resource [io  0x0000-0xffff]                          
pci_bus 0000:00: root bus resource [mem 0xffffffff80000000-0xffffffff9fffffff] )
pci_bus 0000:00: root bus resource [bus 00-07]                                  
Mercury version TR3.2 (0x32) found at 0xfffffffffed24000                        
LBA 0:2: PCI host bridge to bus 0000:40                                         
pci_bus 0000:40: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0)
pci_bus 0000:40: root bus resource [mem 0xffffffffa0000000-0xffffffffafffffff] )
pci_bus 0000:40: root bus resource [bus 40-47]                                  
Mercury version TR3.2 (0x32) found at 0xfffffffffed26000                        
LBA 0:3: PCI host bridge to bus 0000:60                                         
pci_bus 0000:60: root bus resource [io  0x20000-0x2ffff] (bus address [0x0000-0)
pci_bus 0000:60: root bus resource [mem 0xffffffffb0000000-0xffffffffbfffffff] )
pci_bus 0000:60: root bus resource [bus 60-67]                                  
Quicksilver version TR1.0 (0x10) found at 0xfffffffffed28000                    
LBA: lmmio_space [0xffffffffc0000000-0xffffffffdfffffff] - new                  
LBA 0:4: PCI host bridge to bus 0000:80                                         
pci_bus 0000:80: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0)
pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffdfffffff] )
pci_bus 0000:80: root bus resource [bus 80-87]                                  
powersw: Soft power switch at 0xfffffff0f042e278 enabled.                       
vgaarb: setting as boot device: PCI:0000:80:00.0                                
vgaarb: device added: PCI:0000:80:00.0,decodes=io+mem,owns=io+mem,locks=none    
vgaarb: loaded                                                                  
vgaarb: bridge control possible 0000:80:00.0                                    
NET: Registered protocol family 2                                               
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)            
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)                    
TCP: Hash tables configured (established 131072 bind 65536)                     
UDP hash table entries: 8192 (order: 6, 262144 bytes)                           
UDP-Lite hash table entries: 8192 (order: 6, 262144 bytes)                      
NET: Registered protocol family 1                                               
RPC: Registered named UNIX socket transport module.                             
RPC: Registered udp transport module.                                           
RPC: Registered tcp transport module.                                           
RPC: Registered tcp NFSv4.1 backchannel transport module.                       
Trying to unpack rootfs image as initramfs...                                   
Freeing initrd memory: 10564K (000000007e19d000 - 000000007ebee000)             
Performance monitoring counters enabled for Crestone Peak Fast?                 
futex hash table entries: 8192 (order: 6, 262144 bytes)                         
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)            
io scheduler noop registered                                                    
io scheduler deadline registered                                                
io scheduler cfq registered (default)                                           
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled                        
console [ttyS0] disabled                                                        
17: ttyS0 at MMIO 0xfffffff0f05e0800 (irq = 76, base_baud = 115200) is a 16550A 
console [ttyS0] enabled                                                         
console [ttyS0] enabled                                                         
bootconsole [ttyB0] disabled                                                    
bootconsole [ttyB0] disabled                                                    
18: ttyS1 at MMIO 0xfffffff0f05e2800 (irq = 77, base_baud = 115200) is a 16550A 
Linux agpgart interface v0.103                                                  
brd: module loaded                                                              
HP SDC: No SDC found.                                                           
HP SDC MLC: Registering the System Domain Controller's HIL MLC.                 
HP SDC MLC: Request for raw HIL ISR hook denied                                 
mousedev: PS/2 mouse device common for all mice                                 
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0               
hidraw: raw HID events driver (C) Jiri Kosina                                   
rtc-generic rtc-generic: setting system clock to 2016-02-21 14:32:46 UTC (14560)
Freeing unused kernel memory: 276K (0000000040100000 - 0000000040145000)        
Loading, please wait...                                                         
starting versionrandom: systemd-udevd urandom read with 59 bits of entropy avaie
 228                                                                            
Fusion MPT base driver 3.04.20                                                  
Copyright (c) 1999-2008 LSI Corporation                                         
SCSI subsystem initialized                                                      
usbcore: registered new interface driver usbfs                                  
usbcore: registered new interface driver hub                                    
Uniform Multi-Platform E-IDE driver                                             
e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI                
e1000: Copyright (c) 1999-2006 Intel Corporation.                               
usbcore: registered new device driver usb                                       
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver                      
sata_sil24 0000:00:01.0: Applying completion IRQ loss on PCI-X errata fix       
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver                          
ehci-pci: EHCI PCI platform driver                                              
Fusion MPT SPI Host driver 3.04.20                                              
mptbase: ioc0: Initiating bringup                                               
scsi host0: sata_sil24                                                          
scsi host1: sata_sil24                                                          
scsi host2: sata_sil24                                                          
scsi host3: sata_sil24                                                          
e1000 0000:60:03.0 eth0: (PCI:33MHz:32-bit) 00:11:0a:31:8a:77                   
e1000 0000:60:03.0 eth0: Intel(R) PRO/1000 Network Connection                   
siimage 0000:60:02.0: IDE controller (0x1095:0x0680 rev 0x02)                   
siimage 0000:60:02.0: BASE CLOCK == 133                                         
siimage 0000:60:02.0: 100% native mode on irq 72                                
    ide0: MMIO-DMA                                                              
    ide1: MMIO-DMA                                                              
ata1: SATA max UDMA/100 host m128@0xffffffff80088000 port 0xffffffff80080000 ir6
ata2: SATA max UDMA/100 host m128@0xffffffff80088000 port 0xffffffff80082000 ir6
ata3: SATA max UDMA/100 host m128@0xffffffff80088000 port 0xffffffff80084000 ir6
ata4: SATA max UDMA/100 host m128@0xffffffff80088000 port 0xffffffff80086000 ir6
hdc: HL-DT-STDVD+-RW GSA-H21L, ATAPI CD/DVD-ROM drive                           
ioc0: LSI53C1030 B2: Capabilities={Initiator,Target}                            
hdc: UDMA/44 mode selected                                                      
ide0 at 0x107c4080-0x107c4087,0x107c408a on irq 72                              
ide1 at 0x107c40c0-0x107c40c7,0x107c40ca on irq 72                              
ehci-pci 0000:60:01.2: EHCI Host Controller                                     
ehci-pci 0000:60:01.2: new USB bus registered, assigned bus number 1            
ehci-pci 0000:60:01.2: irq 71, io mem 0xffffffffb00a1000                        
ehci-pci 0000:60:01.2: USB 2.0 started, EHCI 0.95                               
usb usb1: New USB device found, idVendor=1d6b, idProduct=0002                   
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1              
usb usb1: Product: EHCI Host Controller                                         
usb usb1: Manufacturer: Linux 4.5.0-rc5 ehci_hcd                                
usb usb1: SerialNumber: 0000:60:01.2                                            
hub 1-0:1.0: USB hub found                                                      
hub 1-0:1.0: 5 ports detected                                                   
ohci-pci: OHCI PCI platform driver                                              
ohci-pci 0000:60:01.0: OHCI PCI host controller                                 
ohci-pci 0000:60:01.0: new USB bus registered, assigned bus number 2            
ohci-pci 0000:60:01.0: irq 69, io mem 0xffffffffb00a3000                        
ata1: SATA link down (SStatus 0 SControl 0)                                     
scsi host4: ioc0: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=67     
usb usb2: New USB device found, idVendor=1d6b, idProduct=0001                   
usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1              
usb usb2: Product: OHCI PCI host controller                                     
usb usb2: Manufacturer: Linux 4.5.0-rc5 ohci_hcd                                
usb usb2: SerialNumber: 0000:60:01.0                                            
hub 2-0:1.0: USB hub found                                                      
hub 2-0:1.0: 3 ports detected                                                   
ohci-pci 0000:60:01.1: OHCI PCI host controller                                 
ohci-pci 0000:60:01.1: new USB bus registered, assigned bus number 3            
ohci-pci 0000:60:01.1: irq 70, io mem 0xffffffffb00a2000                        
scsi 4:0:0:0: Direct-Access     HP 73.4G ST373207LW       HPC1 PQ: 0 ANSI: 3    
scsi target4:0:0: Beginning Domain Validation                                   
scsi target4:0:0: Ending Domain Validation                                      
scsi target4:0:0: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW PCOMP (6.2)
usb usb3: New USB device found, idVendor=1d6b, idProduct=0001                   
usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1              
usb usb3: Product: OHCI PCI host controller                                     
usb usb3: Manufacturer: Linux 4.5.0-rc5 ohci_hcd                                
usb usb3: SerialNumber: 0000:60:01.1                                            
hub 3-0:1.0: USB hub found                                                      
ata2: SATA link down (SStatus 0 SControl 0)                                     
hub 3-0:1.0: 2 ports detected                                                   
scsi 4:0:2:0: Direct-Access     HP 73.4G ST373207LW       HPC1 PQ: 0 ANSI: 3    
scsi target4:0:2: Beginning Domain Validation                                   
scsi target4:0:2: Ending Domain Validation                                      
scsi target4:0:2: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW PCOMP (6.2)
random: nonblocking pool is initialized                                         
ata3: SATA link down (SStatus 0 SControl 0)                                     
mptbase: ioc1: Initiating bringup                                               
ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 0)                            
ata4.00: ATA-9: ST3000DM001-1ER166, CC25, max UDMA/133                          
ata4.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32)                   
ata4.00: configured for UDMA/100                                                
scsi 3:0:0:0: Direct-Access     ATA      ST3000DM001-1ER1 CC25 PQ: 0 ANSI: 5    
sd 3:0:0:0: [sdc] 5860533168 512-byte logical blocks: (3.00 TB/2.73 TiB)        
sd 3:0:0:0: [sdc] 4096-byte physical blocks                                     
sd 3:0:0:0: [sdc] Write Protect is off                                          
sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPA
 sdc: sdc1                                                                      
sd 3:0:0:0: [sdc] Attached SCSI disk                                            
ioc1: LSI53C1030 B2: Capabilities={Initiator,Target}                            
sd 4:0:0:0: [sda] 143374738 512-byte logical blocks: (73.4 GB/68.4 GiB)         
sd 4:0:2:0: [sdb] 143374738 512-byte logical blocks: (73.4 GB/68.4 GiB)         
sd 4:0:0:0: [sda] Write Protect is off                                          
sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FA
scsi host5: ioc1: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=68     
sd 4:0:2:0: [sdb] Write Protect is off                                          
 sda: sda1 sda2 sda3 sda4                                                       
sd 4:0:0:0: [sda] Attached SCSI disk                                            
sd 4:0:2:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FA
sd 4:0:2:0: [sdb] Attached SCSI disk                                            
------------[ cut here ]------------                                            
WARNING: at block/blk-merge.c:466                                               
Modules linked in: sd_mod ohci_pci pata_sil680 mptspi ehci_pci ohci_hcd scsi_trd
CPU: 2 PID: 927 Comm: systemd-udevd Not tainted 4.5.0-rc5 #1                    
task: 000000007f622b18 ti: 000000007e550000 task.ti: 000000007e550000           
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00001000000001001111111100001110 Not tainted                               
r00-03  000000ff0804ff0e 000000007e551220 0000000000001000 000000007e551220     
r04-07  000000004070f340 0000000000000000 00000000000001e0 0000000000000000     
r08-11  0000000000000000 0000000000000001 000000007e231918 0000000000000000     
r12-15  0000000000001000 0000000000000008 000000000000001e 0000000042da3cc8     
r16-19  000000007e231918 000000007e2459b8 000000007f01e800 0000000000000000     
r20-23  0000000000000000 000000007feb4400 0000000000002000 000000004078c690     
r24-27  0002ea873ff455e3 cffd1578c0000000 000000007e231918 000000004070f340     
r28-31  0000000000000001 000000007e551320 000000007e551350 0000000000000007     
sr00-03  0000000000013000 0000000000000000 0000000000013000 0000000000013000    
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000    
                                                                                
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040372d70 0000000040372d74 
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000f88c631918                  
 CPU:        2   CR30: 000000007e550000 CR31: ffffffffffffffff                  
 ORIG_R28: 0000000000000000                                                     
 IAOQ[0]: blk_rq_map_sg+0x5d8/0x610                                             
 IAOQ[1]: blk_rq_map_sg+0x5dc/0x610                                             
 RP(r2): 0x1000                                                                 
Backtrace:                                                                      
 [<0000000010217708>] scsi_init_sgtable+0x70/0x168 [scsi_mod]                   
 [<000000001021786c>] scsi_init_io+0x6c/0x250 [scsi_mod]                        
 [<00000000107f16e0>] sd_setup_read_write_cmnd+0x58/0x948 [sd_mod]              
 [<00000000107f2014>] sd_init_command+0x44/0x130 [sd_mod]                       
 [<0000000010217b54>] scsi_setup_cmnd+0x104/0x1c0 [scsi_mod]                    
 [<0000000010217ea0>] scsi_prep_fn+0x100/0x340 [scsi_mod]                       
 [<000000004036bc14>] blk_peek_request+0x1bc/0x2a8                              
 [<0000000010219aac>] scsi_request_fn+0xf4/0xab0 [scsi_mod]                     
 [<0000000040366fb4>] __blk_run_queue+0x4c/0x70                                 
 [<00000000403919e0>] cfq_insert_request+0x2e0/0x588                            
 [<0000000040366170>] __elv_add_request+0x190/0x2d8                             
                                                                                
---[ end trace c4c138874107ee9a ]---                                            
------------[ cut here ]------------                                            
kernel BUG at drivers/scsi/scsi_lib.c:1097!                                     
CPU: 2 PID: 927 Comm: systemd-udevd Tainted: G        W       4.5.0-rc5 #1      
task: 000000007f622b18 ti: 000000007e550000 task.ti: 000000007e550000           
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00001000000001001111111100001110 Tainted: G        W                       
r00-03  000000ff0804ff0e 000000007e551220 0000000010217708 000000007e551180     
r04-07  0000000010201000 000000007e2459b8 000000007e0d04c0 0000000000000000     
r08-11  000000007e2459b8 000000007fe8e800 0000000040821520 0000000000000110     
r12-15  0000000000000000 000000007e550798 0000000010201000 0000000040738340     
r16-19  000000004082152c 000000007fe8e800 000000007e71d800 0000000000000000     
r20-23  0000000000000000 000000007feb4400 0000000000002000 000000004078c690     
r24-27  0002ea873ff455e3 cffd1578c0000000 000000007e231918 000000004070f340     
r28-31  0000000000000008 000000007e551320 000000007e551220 0000000000000007     
sr00-03  0000000000013000 0000000000000000 0000000000013000 0000000000013000    
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000    
                                                                                
IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001021774c 0000000010217750 
 IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000                  
 CPU:        2   CR30: 000000007e550000 CR31: ffffffffffffffff                  
 ORIG_R28: 0000000000000000                                                     
 IAOQ[0]: scsi_init_sgtable+0xb4/0x168 [scsi_mod]                               
 IAOQ[1]: scsi_init_sgtable+0xb8/0x168 [scsi_mod]                               
 RP(r2): scsi_init_sgtable+0x70/0x168 [scsi_mod]                                
Backtrace:                                                                      
 [<000000001021786c>] scsi_init_io+0x6c/0x250 [scsi_mod]                        
 [<00000000107f16e0>] sd_setup_read_write_cmnd+0x58/0x948 [sd_mod]              
 [<00000000107f2014>] sd_init_command+0x44/0x130 [sd_mod]                       
 [<0000000010217b54>] scsi_setup_cmnd+0x104/0x1c0 [scsi_mod]                    
 [<0000000010217ea0>] scsi_prep_fn+0x100/0x340 [scsi_mod]                       
 [<000000004036bc14>] blk_peek_request+0x1bc/0x2a8                              
 [<0000000010219aac>] scsi_request_fn+0xf4/0xab0 [scsi_mod]                     
 [<0000000040366fb4>] __blk_run_queue+0x4c/0x70                                 
 [<00000000403919e0>] cfq_insert_request+0x2e0/0x588                            
 [<0000000040366170>] __elv_add_request+0x190/0x2d8                             
                                                                                
CPU: 2 PID: 927 Comm: systemd-udevd Tainted: G        W       4.5.0-rc5 #1      
Backtrace:                                                                      
 [<000000004015c0a8>] show_stack+0x20/0x38                                      
 [<0000000040397458>] dump_stack+0xa8/0x120                                     
 [<000000004015c27c>] die_if_kernel+0x19c/0x2e0                                 
 [<000000004015d158>] handle_interruption+0x9a8/0x9d0                           
                                                                                
---[ end trace c4c138874107ee9b ]---                                            
NMI watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [systemd-udevd:927]       
Modules linked in: sd_mod ohci_pci pata_sil680 mptspi ehci_pci ohci_hcd scsi_trd
CPU: 3 PID: 927 Comm: systemd-udevd Tainted: G      D W       4.5.0-rc5 #1      
task: 000000007f622b18 ti: 000000007e550000 task.ti: 000000007e550000           
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00001000000001101111111100001111 Tainted: G      D W                       
r00-03  000000ff0806ff0f 000000007e551d10 0000000040202348 000000007e551c40     
r04-07  000000004070f340 000000007e551ce0 000000004079c560 000000004079c4a0     
r08-11  0000000042e4b360 0000000042e4b368 0000000000000001 00000000406e8360     
r12-15  0000000000000000 000000007e551ce0 0000000010201000 0000000040738340     
r16-19  000000007e551220 000000007fe8e800 000000007e71d800 0000000042e421d0     
r20-23  0000000000000001 0000000042e4b368 000000000800000f 0000000000000000     
r24-27  0000000000000000 0000000000000020 0000000042e4b368 000000004070f340     
r28-31  0000000000000002 000000007e551d60 000000007e551d10 0000000000000003     
sr00-03  000000000001b800 0000000000000000 0000000000000000 000000000001b800    
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000    
                                                                                
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040202370 0000000040202374 
 IIR: 4a7f0030    ISR: 0000000000000000  IOR: 0000000002000200                  
 CPU:        3   CR30: 000000007e550000 CR31: fffffffffffeffff                  
 ORIG_R28: 0000000000000000                                                     
 IAOQ[0]: smp_call_function_many+0x338/0x3b0                                    
 IAOQ[1]: smp_call_function_many+0x33c/0x3b0                                    
 RP(r2): smp_call_function_many+0x310/0x3b0                                     
Backtrace:                                                                      
 [<00000000402024a0>] on_each_cpu+0x58/0xa0                                     
 [<0000000040159998>] flush_tlb_all+0x108/0x1e8                                 
 [<0000000040249600>] tlb_flush_mmu_tlbonly+0x48/0xa8                           
 [<000000004024a480>] tlb_finish_mmu+0x30/0x98                                  
 [<00000000402551dc>] exit_mmap+0x134/0x1b8                                     
 [<00000000401811d8>] mmput+0xc0/0x1a8                                          
 [<0000000040186438>] do_exit+0x320/0xcb8                                       
 [<000000004015c2d8>] die_if_kernel+0x1f8/0x2e0                                 
 [<000000004015d158>] handle_interruption+0x9a8/0x9d0                           
                                                                                
timer_interrupt(CPU 3): delayed! cycles 8291193C rem 903CC4  next/now 259158BA28
NMI watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [systemd-udevd:927]       
Modules linked in: sd_mod ohci_pci pata_sil680 mptspi ehci_pci ohci_hcd scsi_trd
CPU: 3 PID: 927 Comm: systemd-udevd Tainted: G      D W    L  4.5.0-rc5 #1      
task: 000000007f622b18 ti: 000000007e550000 task.ti: 000000007e550000           
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00001000000001101111111100001111 Tainted: G      D W    L                  
r00-03  000000ff0806ff0f 000000007e551d10 0000000040202348 000000007e551c40     
r04-07  000000004070f340 000000007e551ce0 000000004079c560 000000004079c4a0     
r08-11  0000000042e4b360 0000000042e4b368 0000000000000001 00000000406e8360     
r12-15  0000000000000000 000000007e551ce0 0000000010201000 0000000040738340     
r16-19  000000007e551220 000000007fe8e800 000000007e71d800 0000000042e421d0     
r20-23  0000000000000001 0000000042e4b368 000000000800000f 0000000000000000     
r24-27  0000000000000000 0000000000000020 0000000042e4b368 000000004070f340     
r28-31  0000000000000002 000000007e551d60 000000007e551d10 0000000000000003     
sr00-03  000000000001b800 0000000000000000 0000000000000000 000000000001b800    
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000    
                                                                                
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040202370 0000000040202374 
 IIR: 4a7f0030    ISR: 0000000000000000  IOR: 0000000002000200                  
 CPU:        3   CR30: 000000007e550000 CR31: fffffffffffeffff                  
 ORIG_R28: 0000000000000000                                                     
 IAOQ[0]: smp_call_function_many+0x338/0x3b0                                    
 IAOQ[1]: smp_call_function_many+0x33c/0x3b0                                    
 RP(r2): smp_call_function_many+0x310/0x3b0                                     
Backtrace:                                                                      
 [<00000000402024a0>] on_each_cpu+0x58/0xa0                                     
 [<0000000040159998>] flush_tlb_all+0x108/0x1e8                                 
 [<0000000040249600>] tlb_flush_mmu_tlbonly+0x48/0xa8                           
 [<000000004024a480>] tlb_finish_mmu+0x30/0x98                                  
 [<00000000402551dc>] exit_mmap+0x134/0x1b8                                     
 [<00000000401811d8>] mmput+0xc0/0x1a8                                          
 [<0000000040186438>] do_exit+0x320/0xcb8                                       
 [<000000004015c2d8>] die_if_kernel+0x1f8/0x2e0                                 
 [<000000004015d158>] handle_interruption+0x9a8/0x9d0                           
                                                                                
timer_interrupt(CPU 3): delayed! cycles 82907C30 rem 90D9D0  next/now 2C1646D22C
INFO: rcu_sched self-detected stall on CPUINFO: rcu_sched detected stalls on CP:
        2-...: (1 GPs behind) idle=c8f/140000000000000/0 softirq=1886/1886 fqs= 
        3-...: (5545 ticks this GP) idle=a85/140000000000001/0 softirq=1132/113 
        (detected by 1, t=6002 jiffies, g=39, c=38, q=66)                       
Task dump for CPU 2:                                                            
kworker/2:1H    R  running task        0   998      2 0x00000004                
Workqueue: kblockd cfq_kick_queue                                               
Backtrace:                                                                      
 [<0000000040152044>] __schedule+0x264/0x5b8                                    
 [<00000000401523e4>] schedule+0x4c/0xc8                                        
 [<00000000401a12b8>] worker_thread+0x338/0x688                                 
 [<00000000401a976c>] kthread+0x144/0x178                                       
 [<0000000040148020>] end_fault_vector+0x20/0x28                                
 [<0000000010726808>] ohci_hub_control+0x0/0x650 [ohci_hcd]                     
 [<000000001072b0a0>] ohci_dump+0x0/0xf0 [ohci_hcd]                             
                                                                                
Task dump for CPU 3:                                                            
systemd-udevd   R  running task        0   927    921 0x00000014                
Backtrace:                                                                      
 [<00000000402024a0>] on_each_cpu+0x58/0xa0                                     
 [<0000000040159998>] flush_tlb_all+0x108/0x1e8                                 
 [<0000000040249600>] tlb_flush_mmu_tlbonly+0x48/0xa8                           
 [<000000004024a480>] tlb_finish_mmu+0x30/0x98                                  
 [<00000000402551dc>] exit_mmap+0x134/0x1b8                                     
 [<00000000401811d8>] mmput+0xc0/0x1a8                                          
 [<0000000040186438>] do_exit+0x320/0xcb8                                       
 [<000000004015c2d8>] die_if_kernel+0x1f8/0x2e0                                 
 [<000000004015d158>] handle_interruption+0x9a8/0x9d0                           
                                                                                
                                                                                
                                                                                
        3-...: (5545 ticks this GP) idle=a85/140000000000001/0 softirq=1132/113 
         (t=6147 jiffies g=39 c=38 q=67)                                        
Task dump for CPU 2:                                                            
kworker/2:1H    R  running task        0   998      2 0x00000004                
Workqueue: kblockd cfq_kick_queue                                               
Backtrace:                                                                      
 [<0000000040152044>] __schedule+0x264/0x5b8                                    
 [<00000000401523e4>] schedule+0x4c/0xc8                                        
 [<00000000401a12b8>] worker_thread+0x338/0x688                                 
 [<00000000401a976c>] kthread+0x144/0x178                                       
 [<0000000040148020>] end_fault_vector+0x20/0x28                                
                                                                                
Task dump for CPU 3:                                                            
systemd-udevd   R  running task        0   927    921 0x00000014                
Backtrace:                                                                      
 [<000000004015c0a8>] show_stack+0x20/0x38                                      
 [<00000000401b7e9c>] sched_show_task+0x134/0x1d0                               
 [<00000000401ba93c>] dump_cpu_task+0x64/0x80                                   
 [<00000000401e5dec>] rcu_dump_cpu_stacks+0xf4/0x180                            
 [<00000000401eaeac>] rcu_check_callbacks+0x5ac/0x9b8                           
 [<00000000401edacc>] update_process_times+0x74/0xd8                            
 [<000000004015d3c0>] timer_interrupt+0x1b0/0x210                               
 [<00000000401dad4c>] handle_irq_event_percpu+0xb4/0x250                        
 [<00000000401e06b4>] handle_percpu_irq+0xac/0xe8                               
 [<00000000401d9fc4>] generic_handle_irq+0x4c/0x68                              
 [<000000004014a2cc>] call_on_stack+0x18/0x24                                   
                                                                                
timer_interrupt(CPU 3): delayed! cycles 998573C3 rem 42393D  next/now 2EDA613C2F
NMI watchdog: BUG: soft lockup - CPU#3 stuck for 24s! [systemd-udevd:927]       
Modules linked in: sd_mod ohci_pci pata_sil680 mptspi ehci_pci ohci_hcd scsi_trd
CPU: 3 PID: 927 Comm: systemd-udevd Tainted: G      D W    L  4.5.0-rc5 #1      
task: 000000007f622b18 ti: 000000007e550000 task.ti: 000000007e550000           
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00001000000001101111111100001111 Tainted: G      D W    L                  
r00-03  000000ff0806ff0f 000000007e551d10 0000000040202348 000000007e551c40     
r04-07  000000004070f340 000000007e551ce0 000000004079c560 000000004079c4a0     
r08-11  0000000042e4b360 0000000042e4b368 0000000000000001 00000000406e8360     
r12-15  0000000000000000 000000007e551ce0 0000000010201000 0000000040738340     
r16-19  000000007e551220 000000007fe8e800 000000007e71d800 0000000042e421d0     
r20-23  0000000000000001 0000000042e4b368 000000000800000f 0000000000000000     
r24-27  0000000000000000 0000000000000020 0000000042e4b368 000000004070f340     
r28-31  0000000000000002 000000007e551d60 000000007e551d10 0000000000000003     
sr00-03  000000000001b800 0000000000000000 0000000000000000 000000000001b800    
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000    
                                                                                
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040202370 0000000040202374 
 IIR: 4a7f0030    ISR: 0000000000000000  IOR: 0000000002000200                  
 CPU:        3   CR30: 000000007e550000 CR31: fffffffffffeffff                  
 ORIG_R28: 0000000000000000                                                     
 IAOQ[0]: smp_call_function_many+0x338/0x3b0                                    
 IAOQ[1]: smp_call_function_many+0x33c/0x3b0                                    
 RP(r2): smp_call_function_many+0x310/0x3b0                                     
Backtrace:                                                                      
 [<00000000402024a0>] on_each_cpu+0x58/0xa0                                     
 [<0000000040159998>] flush_tlb_all+0x108/0x1e8                                 
 [<0000000040249600>] tlb_flush_mmu_tlbonly+0x48/0xa8                           
 [<000000004024a480>] tlb_finish_mmu+0x30/0x98                                  
 [<00000000402551dc>] exit_mmap+0x134/0x1b8                                     
 [<00000000401811d8>] mmput+0xc0/0x1a8                                          
 [<0000000040186438>] do_exit+0x320/0xcb8                                       
 [<000000004015c2d8>] die_if_kernel+0x1f8/0x2e0                                 
 [<000000004015d158>] handle_interruption+0x9a8/0x9d0                           
                                                                                
timer_interrupt(CPU 3): delayed! cycles 82907FF3 rem 90D60D  next/now 356676622F
NMI watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [systemd-udevd:927]       
Modules linked in: sd_mod ohci_pci pata_sil680 mptspi ehci_pci ohci_hcd scsi_trd
CPU: 3 PID: 927 Comm: systemd-udevd Tainted: G      D W    L  4.5.0-rc5 #1      
task: 000000007f622b18 ti: 000000007e550000 task.ti: 000000007e550000           
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00001000000001101111111100001111 Tainted: G      D W    L                  
r00-03  000000ff0806ff0f 000000007e551d10 0000000040202348 000000007e551c40     
r04-07  000000004070f340 000000007e551ce0 000000004079c560 000000004079c4a0     
r08-11  0000000042e4b360 0000000042e4b368 0000000000000001 00000000406e8360     
r12-15  0000000000000000 000000007e551ce0 0000000010201000 0000000040738340     
r16-19  000000007e551220 000000007fe8e800 000000007e71d800 0000000042e421d0     
r20-23  0000000000000001 0000000042e4b368 000000000800000f 0000000000000000     
r24-27  0000000000000000 0000000000000020 0000000042e4b368 000000004070f340     
r28-31  0000000000000002 000000007e551d60 000000007e551d10 0000000000000003     
sr00-03  000000000001b800 0000000000000000 0000000000000000 000000000001b800    
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000    
                                                                                
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040202370 0000000040202374 
 IIR: 4a7f0030    ISR: 0000000000000000  IOR: 0000000002000200                  
 CPU:        3   CR30: 000000007e550000 CR31: fffffffffffeffff                  
 ORIG_R28: 0000000000000000                                                     
 IAOQ[0]: smp_call_function_many+0x338/0x3b0                                    
 IAOQ[1]: smp_call_function_many+0x33c/0x3b0                                    
 RP(r2): smp_call_function_many+0x310/0x3b0                                     
Backtrace:                                                                      
 [<00000000402024a0>] on_each_cpu+0x58/0xa0                                     
 [<0000000040159998>] flush_tlb_all+0x108/0x1e8                                 
 [<0000000040249600>] tlb_flush_mmu_tlbonly+0x48/0xa8                           
 [<000000004024a480>] tlb_finish_mmu+0x30/0x98                                  
 [<00000000402551dc>] exit_mmap+0x134/0x1b8                                     
 [<00000000401811d8>] mmput+0xc0/0x1a8                                          
 [<0000000040186438>] do_exit+0x320/0xcb8                                       
 [<000000004015c2d8>] die_if_kernel+0x1f8/0x2e0                                 
 [<000000004015d158>] handle_interruption+0x9a8/0x9d0                           
                                                                                
timer_interrupt(CPU 3): delayed! cycles 82919115 rem 8FC4EB  next/now 3BEB647A21
NMI watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [udevadm:929]             
Modules linked in: sd_mod ohci_pci pata_sil680 mptspi ehci_pci ohci_hcd scsi_trd
CPU: 1 PID: 929 Comm: udevadm Tainted: G      D W    L  4.5.0-rc5 #1            
task: 000000007f074d18 ti: 000000007c648000 task.ti: 000000007c648000           
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00001000000001001111111100001111 Tainted: G      D W    L                  
r00-03  000000ff0804ff0f 000000007c648850 0000000040202348 000000007c648780     
r04-07  000000004070f340 000000007c648820 000000004079c560 000000004079c4a0     
r08-11  0000000042e29360 0000000042e29368 0000000000000001 00000000406e8360     
r12-15  0000000000000000 000000007c648820 00000000fa88bb88 0000000000000002     
r16-19  00000000fa889f20 0000000000000000 00000000000ce9f4 0000000042e42190     
r20-23  0000000000000001 0000000042e29368 000000000800000f 0000000000000000     
r24-27  0000000000000000 0000000000000020 0000000042e29368 000000004070f340     
r28-31  0000000000000002 000000007c6488a0 000000007c648850 0000000000000003     
sr00-03  0000000000015800 0000000000015800 0000000000000000 0000000000015800    
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000    
                                                                                
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040202370 0000000040202374 
 IIR: 4a7f0030    ISR: 0000000000000000  IOR: 0000000002000200                  
 CPU:        1   CR30: 000000007c648000 CR31: ffffffffffffffff                  
 ORIG_R28: 0000000000000000                                                     
 IAOQ[0]: smp_call_function_many+0x338/0x3b0                                    
 IAOQ[1]: smp_call_function_many+0x33c/0x3b0                                    
 RP(r2): smp_call_function_many+0x310/0x3b0                                     
Backtrace:                                                                      
 [<00000000402024a0>] on_each_cpu+0x58/0xa0                                     
 [<0000000040159998>] flush_tlb_all+0x108/0x1e8                                 
 [<0000000040249600>] tlb_flush_mmu_tlbonly+0x48/0xa8                           
 [<000000004024a480>] tlb_finish_mmu+0x30/0x98                                  
 [<00000000402551dc>] exit_mmap+0x134/0x1b8                                     
 [<00000000401811d8>] mmput+0xc0/0x1a8                                          
 [<0000000040186438>] do_exit+0x320/0xcb8                                       
 [<00000000401880a0>] do_group_exit+0x50/0xf0                                   
 [<0000000040188160>] SyS_exit_group+0x20/0x28                                  
 [<0000000040149fe8>] syscall_exit+0x0/0x14                                     
                                                                                
timer_interrupt(CPU 1): delayed! cycles 84101F2A rem 4263D6  next/now 3CCB28AEFD
NMI watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [systemd-udevd:927]       
Modules linked in: sd_mod ohci_pci pata_sil680 mptspi ehci_pci ohci_hcd scsi_trd
CPU: 3 PID: 927 Comm: systemd-udevd Tainted: G      D W    L  4.5.0-rc5 #1      
task: 000000007f622b18 ti: 000000007e550000 task.ti: 000000007e550000           
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00001000000001101111111100001111 Tainted: G      D W    L                  
r00-03  000000ff0806ff0f 000000007e551d10 0000000040202348 000000007e551c40     
r04-07  000000004070f340 000000007e551ce0 000000004079c560 000000004079c4a0     
r08-11  0000000042e4b360 0000000042e4b368 0000000000000001 00000000406e8360     
r12-15  0000000000000000 000000007e551ce0 0000000010201000 0000000040738340     
r16-19  000000007e551220 000000007fe8e800 000000007e71d800 0000000042e421d0     
r20-23  0000000000000001 0000000042e4b368 000000000800000f 0000000000000000     
r24-27  0000000000000000 0000000000000020 0000000042e4b368 000000004070f340     
r28-31  0000000000000002 000000007e551d60 000000007e551d10 0000000000000003     
sr00-03  000000000001b800 0000000000000000 0000000000000000 000000000001b800    
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000    
                                                                                
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040202370 0000000040202374 
 IIR: 4a7f0030    ISR: 0000000000000000  IOR: 0000000002000200                  
 CPU:        3   CR30: 000000007e550000 CR31: fffffffffffeffff                  
 ORIG_R28: 0000000000000000                                                     
 IAOQ[0]: smp_call_function_many+0x338/0x3b0                                    
 IAOQ[1]: smp_call_function_many+0x33c/0x3b0                                    
 RP(r2): smp_call_function_many+0x310/0x3b0                                     
Backtrace:                                                                      
 [<00000000402024a0>] on_each_cpu+0x58/0xa0                                     
 [<0000000040159998>] flush_tlb_all+0x108/0x1e8                                 
 [<0000000040249600>] tlb_flush_mmu_tlbonly+0x48/0xa8                           
 [<000000004024a480>] tlb_finish_mmu+0x30/0x98                                  
 [<00000000402551dc>] exit_mmap+0x134/0x1b8                                     
 [<00000000401811d8>] mmput+0xc0/0x1a8                                          
 [<0000000040186438>] do_exit+0x320/0xcb8                                       
 [<000000004015c2d8>] die_if_kernel+0x1f8/0x2e0                                 
 [<000000004015d158>] handle_interruption+0x9a8/0x9d0                           
                                                                                
timer_interrupt(CPU 3): delayed! cycles 829113E3 rem 90421D  next/now 427052922F
NMI watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [udevadm:929]             
Modules linked in: sd_mod ohci_pci pata_sil680 mptspi ehci_pci ohci_hcd scsi_trd
CPU: 1 PID: 929 Comm: udevadm Tainted: G      D W    L  4.5.0-rc5 #1            
task: 000000007f074d18 ti: 000000007c648000 task.ti: 000000007c648000           
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00001000000001001111111100001111 Tainted: G      D W    L                  
r00-03  000000ff0804ff0f 000000007c648850 0000000040202348 000000007c648780     
r04-07  000000004070f340 000000007c648820 000000004079c560 000000004079c4a0     
r08-11  0000000042e29360 0000000042e29368 0000000000000001 00000000406e8360     
r12-15  0000000000000000 000000007c648820 00000000fa88bb88 0000000000000002     
r16-19  00000000fa889f20 0000000000000000 00000000000ce9f4 0000000042e42190     
r20-23  0000000000000001 0000000042e29368 000000000800000f 0000000000000000     
r24-27  0000000000000000 0000000000000020 0000000042e29368 000000004070f340     
r28-31  0000000000000002 000000007c6488a0 000000007c648850 0000000000000003     
sr00-03  0000000000015800 0000000000015800 0000000000000000 0000000000015800    
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000    
                                                                                
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040202370 0000000040202374 
 IIR: 4a7f0030    ISR: 0000000000000000  IOR: 0000000002000200                  
 CPU:        1   CR30: 000000007c648000 CR31: ffffffffffffffff                  
 ORIG_R28: 0000000000000000                                                     
 IAOQ[0]: smp_call_function_many+0x338/0x3b0                                    
 IAOQ[1]: smp_call_function_many+0x33c/0x3b0                                    
 RP(r2): smp_call_function_many+0x310/0x3b0                                     
Backtrace:                                                                      
 [<00000000402024a0>] on_each_cpu+0x58/0xa0                                     
 [<0000000040159998>] flush_tlb_all+0x108/0x1e8                                 
 [<0000000040249600>] tlb_flush_mmu_tlbonly+0x48/0xa8                           
 [<000000004024a480>] tlb_finish_mmu+0x30/0x98                                  
 [<00000000402551dc>] exit_mmap+0x134/0x1b8                                     
 [<00000000401811d8>] mmput+0xc0/0x1a8                                          
 [<0000000040186438>] do_exit+0x320/0xcb8                                       
 [<00000000401880a0>] do_group_exit+0x50/0xf0                                   
 [<0000000040188160>] SyS_exit_group+0x20/0x28                                  
 [<0000000040149fe8>] syscall_exit+0x0/0x14                                     
                                                                                
timer_interrupt(CPU 1): delayed! cycles 840FA62E rem 42DCD2  next/now 435016C6F1

I've downloaded linux-block and I'll see if I can pin point the change that causes the problem.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Sat, 2016-02-20 at 21:52 -0500, John David Anglin wrote:
> On 2016-02-20, at 5:52 PM, John David Anglin wrote:
> 
> > On 2016-02-20, at 4:59 PM, Helge Deller wrote:
> > 
> > > On 20.02.2016 21:43, John David Anglin wrote:
> > > > On 2016-02-20, at 3:13 PM, John David Anglin wrote:
> > > > 
> > > > > On 2016-01-23, at 1:00 PM, John David Anglin wrote:
> > > > > 
> > > > > > WARNING: at block/blk-merge.c:454
> > > > > 
> > > > > With linux-image-4.4.0-1-parisc64-smp on c3740, the above
> > > > > warning is the last message I see.
> > > > > Kernel seems to hang at that point.  This is warning code:
> > > > > 
> > > > >      /*
> > > > >       * Something must have been wrong if the figured number
> > > > > of
> > > > >       * segment is bigger than number of req's physical
> > > > > segments
> > > > >       */
> > > > >      WARN_ON(nsegs > rq->nr_phys_segments);
> > > > 
> > > > On Sep. 12, 2015, I reported the following problem:
> > > > 
> > > > http://www.spinics.net/lists/linux-parisc/msg06327.html
> > > 
> > > The problem is still, that this bug can only be reproduced at
> > > every boot when then 
> > > scsi drivers are built as modules (and in an initrd). I could
> > > never reproduce it when
> > > I booted a kernel with built-in scsi drivers.
> > > 
> > > The bug seems to be triggered by(*nsegs)++ command in
> > > __blk_segment_map_sg() in block/blk-merge.c.
> > > I'm testing with the 4.4.2 kernel from debian.
> > > I modified __blk_segment_map_sg() like that:
> > > static inline void
> > > __blk_segment_map_sg(struct request_queue *q, struct bio_vec
> > > *bvec,
> > >                    struct scatterlist *sglist, struct bio_vec
> > > *bvprv,
> > >                    struct scatterlist **sg, int *nsegs, int
> > > *cluster)
> > > {
> > > 
> > >       int nbytes = bvec->bv_len;
> > > 
> > >       if (*sg && *cluster) {
> > >               if ((*sg)->length + nbytes >
> > > queue_max_segment_size(q))
> > >                       goto new_segment;
> > > 
> > >               if (!BIOVEC_PHYS_MERGEABLE(bvprv, bvec))
> > >                       goto new_segment;
> > >               if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bvec))
> > >                       goto new_segment;
> > > 
> > >               (*sg)->length += nbytes;
> > >       } else {
> > > new_segment:
> > >               if (*sg && *cluster) {
> > >                       printk("NEW SEGMENT sg = %p!!!\n", sg);
> > >                       printk("__blk_segment_map_sg: length = %d,
> > > nbytes = %d, sum = %d > %d\n", (*sg)->length, nbytes, (*sg)
> > > ->length + nbytes, queue_max_segment_size(q));
> > >                       printk("__blk_segment_map_sg:
> > > BIOVEC_PHYS_MERGEABLE = %d, BIOVEC_SEG_BOUNDARY = %d\n",
> > > BIOVEC_PHYS_MERGEABLE(bvprv, bvec), BIOVEC_SEG_BOUNDARY(q, bvprv,
> > > bvec) );
> > >               }
> > >               if (!*sg)
> > >                       *sg = sglist;
> > >               else {
> > >                       /*
> > >                        * If the driver previously mapped a
> > > shorter
> > >                        * list, we could see a termination bit
> > >                        * prematurely unless it fully inits the sg
> > >                        * table on each mapping. We KNOW that
> > > there
> > >                        * must be more entries here or the driver
> > >                        * would be buggy, so force clear the
> > >                        * termination bit to avoid doing a full
> > >                        * sg_init_table() in drivers for each
> > > command.
> > >                        */
> > >                       sg_unmark_end(*sg);
> > >                       *sg = sg_next(*sg);
> > >               }
> > > 
> > >               sg_set_page(*sg, bvec->bv_page, nbytes, bvec
> > > ->bv_offset);
> > >               (*nsegs)++;
> > >       }
> > >       *bvprv = *bvec;
> > > }
> > > 
> > > The boot log looks then like this:
> > > [   43.044000] scsi_init_sgtable: count = 1, nents = 1
> > > (there are lots of those before it!)
> > > [   43.164000] scsi_init_sgtable: nr_phys_segments = 1
> > > [   43.164000] scsi_init_sgtable: count = 1, nents = 1
> > > [   43.280000] scsi_init_sgtable: nr_phys_segments = 1
> > > [   43.280000] scsi_init_sgtable: count = 1, nents = 1
> > > [   43.396000] scsi_init_sgtable: nr_phys_segments = 1
> > > [   43.396000] scsi_init_sgtable: count = 1, nents = 1
> > > [   43.512000] scsi_init_sgtable: nr_phys_segments = 1
> > > [   43.512000] scsi_init_sgtable: count = 1, nents = 1
> > > [   43.628000] scsi_init_sgtable: nr_phys_segments = 3
> > > [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > [   43.628000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > [   43.628000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   43.628000] scsi_init_sgtable: count = 3, nents = 3
> > > [   44.224000] scsi_init_sgtable: nr_phys_segments = 1
> > > [   44.224000] scsi_init_sgtable: count = 1, nents = 1
> > > [   44.340000] scsi_init_sgtable: nr_phys_segments = 1
> > > [   44.340000] scsi_init_sgtable: count = 1, nents = 1
> > > [   44.456000] scsi_init_sgtable: nr_phys_segments = 7
> > > [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   44.456000] scsi_init_sgtable: count = 7, nents = 7
> > > [   44.456000] timer_interrupt(CPU 0): delayed! cycles 4527081F
> > > rem C6C21  next/now 14E153306E/14E146C44D
> > > [   46.116000] scsi_init_sgtable: nr_phys_segments = 7
> > > [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > [   46.116000] __blk_segment_map_sg: length = 8192, nbytes =
> > > 4096, sum = 12288 > 65536
> > > [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > [   46.116000] __blk_segment_map_sg: length = 16384, nbytes =
> > > 4096, sum = 20480 > 65536
> > > [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   46.116000] scsi_init_sgtable: count = 7, nents = 7
> > > [   46.116000] timer_interrupt(CPU 0): delayed! cycles 453F0A77
> > > rem 223089  next/now 152BB6286E/152B93F7E5
> > > [   47.780000] scsi_init_sgtable: nr_phys_segments = 1
> > > [   47.780000] scsi_init_sgtable: count = 1, nents = 1
> > > [   47.896000] scsi_init_sgtable: nr_phys_segments = 6
> > > [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > [   47.896000] __blk_segment_map_sg: length = 61440, nbytes =
> > > 4096, sum = 65536 > 65536
> > > [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > [   47.896000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > [   47.896000] __blk_segment_map_sg: length = 4096, nbytes =
> > > 4096, sum = 8192 > 65536
> > > [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > [   47.896000] __blk_segment_map_sg: length = 8192, nbytes =
> > > 4096, sum = 12288 > 65536
> > > [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > [   47.896000] __blk_segment_map_sg: length = 8192, nbytes =
> > > 4096, sum = 12288 > 65536
> > > [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   47.896000] scsi_init_sgtable: count = 6, nents = 6
> > > [   47.896000] timer_interrupt(CPU 0): delayed! cycles 3AB087E2
> > > rem 23E4DE  next/now 1570BBD5EE/157097F110
> > > [   49.324000] scsi_init_sgtable: nr_phys_segments = 1
> > > [   49.324000] scsi_init_sgtable: count = 1, nents = 1
> > > [   49.440000] scsi_init_sgtable: nr_phys_segments = 2
> > > [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > [   49.440000] __blk_segment_map_sg: length = 65536, nbytes =
> > > 4096, sum = 69632 > 65536
> > > 
> > > (this is interesting! Here we reach a sum of > 65536 the first
> > > time)
> > > 
> > > [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 1,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > [   49.440000] __blk_segment_map_sg: length = 16384, nbytes =
> > > 4096, sum = 20480 > 65536
> > > [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> > > BIOVEC_SEG_BOUNDARY = 1
> > > [   49.440000] *** FIXIT *** HELGE: nsegs > rq->nr_phys_segments
> > > = 3 > 2
> > > [   49.440000] scsi_init_sgtable: count = 3, nents = 2
> > > [   50.116000] ------------[ cut here ]------------
> > > [   50.172000] WARNING: at /build/linux-4.4/linux
> > > -4.4.2/drivers/scsi/scsi_lib.c:1104
> > > 
> > > (this is usually a BUG(). I changed it to WARN() in the hope it
> > > would work anyway. It didn't.)
> > > 
> > > [   50.260000] Modules linked in: sd_mod sr_mod cdrom ata_generic
> > > ohci_pci ehci_pci ohci_hcd ehci_hcd pata_ns87415 sym53c8xx libata
> > > scsi_transport_spi scsi_mod usbcorep
> > > [   50.456000] CPU: 0 PID: 70 Comm: systemd-udevd Not tainted
> > > 4.4.0-1-parisc64-smp #5 Debian 4.4.2-2
> > > [   50.564000] task: 000000007f948b28 ti: 000000007fa90000
> > > task.ti: 000000007fa90000
> > > [   50.652000] 
> > > [   50.672000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > > [   50.728000] PSW: 00001000000001001111100100001110 Not tainted
> > > [   50.796000] r00-03  000000ff0804f90e 00000000409ea2e0
> > > 00000000003e2ee0 000000007fa91140
> > > [   50.892000] r04-07  00000000003cd000 000000007f914300
> > > 000000007f914b10 0000000000000003
> > > [   50.988000] r08-11  0000000000000000 000000007f918000
> > > 0000000040bdd6b0 00000000003cd800
> > > [   51.084000] r12-15  0000000000000000 000000007fa90778
> > > 00000000003cd000 000000007f918000
> > > [   51.180000] r16-19  0000000000001300 0000000040bdd6b8
> > > 0000000040bdd6bc 0000000040ba2420
> > > [   51.276000] r20-23  0000000099116e92 0000000000000000
> > > 00000000000002a0 00000000000002ee
> > > [   51.372000] r24-27  0000000000000000 000000000800000e
> > > 0000000040b60750 00000000409b3ae0
> > > [   51.468000] r28-31  0000000000000002 000000007fa914f0
> > > 000000007fa911e0 0000000040ba2408
> > > [   51.564000] sr00-03  0000000000015000 0000000000000000
> > > 0000000000000000 0000000000015000
> > > [   51.660000] sr04-07  0000000000000000 0000000000000000
> > > 0000000000000000 0000000000000000
> > > [   51.756000] 
> > > [   51.772000] IASQ: 0000000000000000 0000000000000000 IAOQ:
> > > 00000000003e2f24 00000000003e2f28
> > > [   51.872000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR:
> > > 000000fea4691528
> > > [   51.956000]  CPU:        0   CR30: 000000007fa90000 CR31:
> > > 00000000ffff7dff
> > > [   52.040000]  ORIG_R28: 0000000040b60718
> > > [   52.084000]  IAOQ[0]: scsi_init_sgtable+0xfc/0x1b8 [scsi_mod]
> > > [   52.152000]  IAOQ[1]: scsi_init_sgtable+0x100/0x1b8 [scsi_mod]
> > > [   52.224000]  RP(r2): scsi_init_sgtable+0xb8/0x1b8 [scsi_mod]
> > > [   52.292000] Backtrace:
> > > [   52.320000]  [<00000000003e304c>] scsi_init_io+0x6c/0x258
> > > [scsi_mod]
> > > [   52.396000]  [<000000000087d078>] sd_init_command+0x70/0xec8
> > > [sd_mod]
> > > 
> > > In general I think the bug is somehow in blk-merge.c.
> > > But I'm not an expert in that code.
> > 
> > The warning was added in this patch sequence:
> > https://lkml.org/lkml/2015/11/23/996
> > 
> > Possibly, but above seems to indicate that it could be driver issue
> > as well.
> 
> 
> I believe this bug was introduced by the following merge:
> 
> commit 1081230b748de8f03f37f80c53dfa89feda9b8de
> Merge: df91039 2ca495a
> Author: Linus Torvalds <torvalds@linux-foundation.org>
> Date:   Wed Sep 2 13:10:25 2015 -0700
> 
>     Merge branch 'for-4.3/core' of git://git.kernel.dk/linux-block
>     
>     Pull core block updates from Jens Axboe:
>      "This first core part of the block IO changes contains:
>     
>        - Cleanup of the bio IO error signaling from Christoph.  We
> used to
>          rely on the uptodate bit and passing around of an error, now
> we
>          store the error in the bio itself.
>     
>        - Improvement of the above from myself, by shrinking the bio
> size
>          down again to fit in two cachelines on x86-64.
>     
>        - Revert of the max_hw_sectors cap removal from a revision
> again,
>          from Jeff Moyer.  This caused performance regressions in
> various
>          tests.  Reinstate the limit, bump it to a more reasonable
> size
>          instead.
>     
>        - Make /sys/block/<dev>/queue/discard_max_bytes writeable, by
> me.
>          Most devices have huge trim limits, which can cause nasty
> latencies
>          when deleting files.  Enable the admin to configure the size
> down.
>          We will look into having a more sane default instead of
> UINT_MAX
>          sectors.
>     
>        - Improvement of the SGP gaps logic from Keith Busch.
>     
>        - Enable the block core to handle arbitrarily sized bios,
> which
>          enables a nice simplification of bio_add_page() (which is an
> IO hot
>          path).  From Kent.
>     
>        - Improvements to the partition io stats accounting, making it
>          faster.  From Ming Lei.
>     
>        - Also from Ming Lei, a basic fixup for overflow of the sysfs
> pending
>          file in blk-mq, as well as a fix for a blk-mq timeout race
>          condition.
>     
>        - Ming Lin has been carrying Kents above mentioned patches
> forward
>          for a while, and testing them.  Ming also did a few fixes
> around
>          that.
>     
>        - Sasha Levin found and fixed a use-after-free problem
> introduced by
>          the bio->bi_error changes from Christoph.
>     
>        - Small blk cgroup cleanup from Viresh Kumar"
>     
>     * 'for-4.3/core' of git://git.kernel.dk/linux-block: (26 commits)
>       blk: Fix bio_io_vec index when checking bvec gaps
>       block: Replace SG_GAPS with new queue limits mask
>       block: bump BLK_DEF_MAX_SECTORS to 2560
>       Revert "block: remove artifical max_hw_sectors cap"
>       blk-mq: fix race between timeout and freeing request
>       blk-mq: fix buffer overflow when reading sysfs file of
> 'pending'
>       Documentation: update notes in biovecs about arbitrarily sized
> bios
>       block: remove bio_get_nr_vecs()
>       fs: use helper bio_add_page() instead of open coding on
> bi_io_vec
>       block: kill merge_bvec_fn() completely
>       md/raid5: get rid of bio_fits_rdev()
>       md/raid5: split bio for chunk_aligned_read
>       block: remove split code in blkdev_issue_{discard,write_same}
>       btrfs: remove bio splitting and merge_bvec_fn() calls
>       bcache: remove driver private bio splitting code
>       block: simplify bio_add_page()
>       block: make generic_make_request handle arbitrarily sized bios
>       blk-cgroup: Drop unlikely before IS_ERR(_OR_NULL)
>       block: don't access bio->bi_error after bio_put()
>       block: shrink struct bio down to 2 cache lines again
>       ...

If you can bisect it down to the exact commit, I might be able to work
out what's the problem.  Otherwise, even in an all modular config, I
can't reproduce this on 4.5-rc4, so it may be fixed upstream (just not
backported).

James


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On 2016-02-20, at 10:47 PM, James Bottomley wrote:

> On Sat, 2016-02-20 at 21:52 -0500, John David Anglin wrote:
>> On 2016-02-20, at 5:52 PM, John David Anglin wrote:
>> 
>>> On 2016-02-20, at 4:59 PM, Helge Deller wrote:
>>> 
>>>> On 20.02.2016 21:43, John David Anglin wrote:
>>>>> On 2016-02-20, at 3:13 PM, John David Anglin wrote:
>>>>> 
>>>>>> On 2016-01-23, at 1:00 PM, John David Anglin wrote:
>>>>>> 
>>>>>>> WARNING: at block/blk-merge.c:454
>>>>>> 
>>>>>> With linux-image-4.4.0-1-parisc64-smp on c3740, the above
>>>>>> warning is the last message I see.
>>>>>> Kernel seems to hang at that point.  This is warning code:
>>>>>> 
>>>>>>     /*
>>>>>>      * Something must have been wrong if the figured number
>>>>>> of
>>>>>>      * segment is bigger than number of req's physical
>>>>>> segments
>>>>>>      */
>>>>>>     WARN_ON(nsegs > rq->nr_phys_segments);
>>>>> 
>>>>> On Sep. 12, 2015, I reported the following problem:
>>>>> 
>>>>> http://www.spinics.net/lists/linux-parisc/msg06327.html
>>>> 
>>>> The problem is still, that this bug can only be reproduced at
>>>> every boot when then 
>>>> scsi drivers are built as modules (and in an initrd). I could
>>>> never reproduce it when
>>>> I booted a kernel with built-in scsi drivers.
>>>> 
>>>> The bug seems to be triggered by(*nsegs)++ command in
>>>> __blk_segment_map_sg() in block/blk-merge.c.
>>>> I'm testing with the 4.4.2 kernel from debian.
>>>> I modified __blk_segment_map_sg() like that:
>>>> static inline void
>>>> __blk_segment_map_sg(struct request_queue *q, struct bio_vec
>>>> *bvec,
>>>>                   struct scatterlist *sglist, struct bio_vec
>>>> *bvprv,
>>>>                   struct scatterlist **sg, int *nsegs, int
>>>> *cluster)
>>>> {
>>>> 
>>>>      int nbytes = bvec->bv_len;
>>>> 
>>>>      if (*sg && *cluster) {
>>>>              if ((*sg)->length + nbytes >
>>>> queue_max_segment_size(q))
>>>>                      goto new_segment;
>>>> 
>>>>              if (!BIOVEC_PHYS_MERGEABLE(bvprv, bvec))
>>>>                      goto new_segment;
>>>>              if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bvec))
>>>>                      goto new_segment;
>>>> 
>>>>              (*sg)->length += nbytes;
>>>>      } else {
>>>> new_segment:
>>>>              if (*sg && *cluster) {
>>>>                      printk("NEW SEGMENT sg = %p!!!\n", sg);
>>>>                      printk("__blk_segment_map_sg: length = %d,
>>>> nbytes = %d, sum = %d > %d\n", (*sg)->length, nbytes, (*sg)
>>>> ->length + nbytes, queue_max_segment_size(q));
>>>>                      printk("__blk_segment_map_sg:
>>>> BIOVEC_PHYS_MERGEABLE = %d, BIOVEC_SEG_BOUNDARY = %d\n",
>>>> BIOVEC_PHYS_MERGEABLE(bvprv, bvec), BIOVEC_SEG_BOUNDARY(q, bvprv,
>>>> bvec) );
>>>>              }
>>>>              if (!*sg)
>>>>                      *sg = sglist;
>>>>              else {
>>>>                      /*
>>>>                       * If the driver previously mapped a
>>>> shorter
>>>>                       * list, we could see a termination bit
>>>>                       * prematurely unless it fully inits the sg
>>>>                       * table on each mapping. We KNOW that
>>>> there
>>>>                       * must be more entries here or the driver
>>>>                       * would be buggy, so force clear the
>>>>                       * termination bit to avoid doing a full
>>>>                       * sg_init_table() in drivers for each
>>>> command.
>>>>                       */
>>>>                      sg_unmark_end(*sg);
>>>>                      *sg = sg_next(*sg);
>>>>              }
>>>> 
>>>>              sg_set_page(*sg, bvec->bv_page, nbytes, bvec
>>>> ->bv_offset);
>>>>              (*nsegs)++;
>>>>      }
>>>>      *bvprv = *bvec;
>>>> }
>>>> 
>>>> The boot log looks then like this:
>>>> [   43.044000] scsi_init_sgtable: count = 1, nents = 1
>>>> (there are lots of those before it!)
>>>> [   43.164000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   43.164000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   43.280000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   43.280000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   43.396000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   43.396000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   43.512000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   43.512000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   43.628000] scsi_init_sgtable: nr_phys_segments = 3
>>>> [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   43.628000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   43.628000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   43.628000] scsi_init_sgtable: count = 3, nents = 3
>>>> [   44.224000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   44.224000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   44.340000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   44.340000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   44.456000] scsi_init_sgtable: nr_phys_segments = 7
>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   44.456000] scsi_init_sgtable: count = 7, nents = 7
>>>> [   44.456000] timer_interrupt(CPU 0): delayed! cycles 4527081F
>>>> rem C6C21  next/now 14E153306E/14E146C44D
>>>> [   46.116000] scsi_init_sgtable: nr_phys_segments = 7
>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   46.116000] __blk_segment_map_sg: length = 8192, nbytes =
>>>> 4096, sum = 12288 > 65536
>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>> [   46.116000] __blk_segment_map_sg: length = 16384, nbytes =
>>>> 4096, sum = 20480 > 65536
>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   46.116000] scsi_init_sgtable: count = 7, nents = 7
>>>> [   46.116000] timer_interrupt(CPU 0): delayed! cycles 453F0A77
>>>> rem 223089  next/now 152BB6286E/152B93F7E5
>>>> [   47.780000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   47.780000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   47.896000] scsi_init_sgtable: nr_phys_segments = 6
>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   47.896000] __blk_segment_map_sg: length = 61440, nbytes =
>>>> 4096, sum = 65536 > 65536
>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   47.896000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   47.896000] __blk_segment_map_sg: length = 4096, nbytes =
>>>> 4096, sum = 8192 > 65536
>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   47.896000] __blk_segment_map_sg: length = 8192, nbytes =
>>>> 4096, sum = 12288 > 65536
>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   47.896000] __blk_segment_map_sg: length = 8192, nbytes =
>>>> 4096, sum = 12288 > 65536
>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   47.896000] scsi_init_sgtable: count = 6, nents = 6
>>>> [   47.896000] timer_interrupt(CPU 0): delayed! cycles 3AB087E2
>>>> rem 23E4DE  next/now 1570BBD5EE/157097F110
>>>> [   49.324000] scsi_init_sgtable: nr_phys_segments = 1
>>>> [   49.324000] scsi_init_sgtable: count = 1, nents = 1
>>>> [   49.440000] scsi_init_sgtable: nr_phys_segments = 2
>>>> [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   49.440000] __blk_segment_map_sg: length = 65536, nbytes =
>>>> 4096, sum = 69632 > 65536
>>>> 
>>>> (this is interesting! Here we reach a sum of > 65536 the first
>>>> time)
>>>> 
>>>> [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 1,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>> [   49.440000] __blk_segment_map_sg: length = 16384, nbytes =
>>>> 4096, sum = 20480 > 65536
>>>> [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
>>>> BIOVEC_SEG_BOUNDARY = 1
>>>> [   49.440000] *** FIXIT *** HELGE: nsegs > rq->nr_phys_segments
>>>> = 3 > 2
>>>> [   49.440000] scsi_init_sgtable: count = 3, nents = 2
>>>> [   50.116000] ------------[ cut here ]------------
>>>> [   50.172000] WARNING: at /build/linux-4.4/linux
>>>> -4.4.2/drivers/scsi/scsi_lib.c:1104
>>>> 
>>>> (this is usually a BUG(). I changed it to WARN() in the hope it
>>>> would work anyway. It didn't.)
>>>> 
>>>> [   50.260000] Modules linked in: sd_mod sr_mod cdrom ata_generic
>>>> ohci_pci ehci_pci ohci_hcd ehci_hcd pata_ns87415 sym53c8xx libata
>>>> scsi_transport_spi scsi_mod usbcorep
>>>> [   50.456000] CPU: 0 PID: 70 Comm: systemd-udevd Not tainted
>>>> 4.4.0-1-parisc64-smp #5 Debian 4.4.2-2
>>>> [   50.564000] task: 000000007f948b28 ti: 000000007fa90000
>>>> task.ti: 000000007fa90000
>>>> [   50.652000] 
>>>> [   50.672000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>>> [   50.728000] PSW: 00001000000001001111100100001110 Not tainted
>>>> [   50.796000] r00-03  000000ff0804f90e 00000000409ea2e0
>>>> 00000000003e2ee0 000000007fa91140
>>>> [   50.892000] r04-07  00000000003cd000 000000007f914300
>>>> 000000007f914b10 0000000000000003
>>>> [   50.988000] r08-11  0000000000000000 000000007f918000
>>>> 0000000040bdd6b0 00000000003cd800
>>>> [   51.084000] r12-15  0000000000000000 000000007fa90778
>>>> 00000000003cd000 000000007f918000
>>>> [   51.180000] r16-19  0000000000001300 0000000040bdd6b8
>>>> 0000000040bdd6bc 0000000040ba2420
>>>> [   51.276000] r20-23  0000000099116e92 0000000000000000
>>>> 00000000000002a0 00000000000002ee
>>>> [   51.372000] r24-27  0000000000000000 000000000800000e
>>>> 0000000040b60750 00000000409b3ae0
>>>> [   51.468000] r28-31  0000000000000002 000000007fa914f0
>>>> 000000007fa911e0 0000000040ba2408
>>>> [   51.564000] sr00-03  0000000000015000 0000000000000000
>>>> 0000000000000000 0000000000015000
>>>> [   51.660000] sr04-07  0000000000000000 0000000000000000
>>>> 0000000000000000 0000000000000000
>>>> [   51.756000] 
>>>> [   51.772000] IASQ: 0000000000000000 0000000000000000 IAOQ:
>>>> 00000000003e2f24 00000000003e2f28
>>>> [   51.872000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR:
>>>> 000000fea4691528
>>>> [   51.956000]  CPU:        0   CR30: 000000007fa90000 CR31:
>>>> 00000000ffff7dff
>>>> [   52.040000]  ORIG_R28: 0000000040b60718
>>>> [   52.084000]  IAOQ[0]: scsi_init_sgtable+0xfc/0x1b8 [scsi_mod]
>>>> [   52.152000]  IAOQ[1]: scsi_init_sgtable+0x100/0x1b8 [scsi_mod]
>>>> [   52.224000]  RP(r2): scsi_init_sgtable+0xb8/0x1b8 [scsi_mod]
>>>> [   52.292000] Backtrace:
>>>> [   52.320000]  [<00000000003e304c>] scsi_init_io+0x6c/0x258
>>>> [scsi_mod]
>>>> [   52.396000]  [<000000000087d078>] sd_init_command+0x70/0xec8
>>>> [sd_mod]
>>>> 
>>>> In general I think the bug is somehow in blk-merge.c.
>>>> But I'm not an expert in that code.
>>> 
>>> The warning was added in this patch sequence:
>>> https://lkml.org/lkml/2015/11/23/996
>>> 
>>> Possibly, but above seems to indicate that it could be driver issue
>>> as well.
>> 
>> 
>> I believe this bug was introduced by the following merge:
>> 
>> commit 1081230b748de8f03f37f80c53dfa89feda9b8de
>> Merge: df91039 2ca495a
>> Author: Linus Torvalds <torvalds@linux-foundation.org>
>> Date:   Wed Sep 2 13:10:25 2015 -0700
>> 
>>    Merge branch 'for-4.3/core' of git://git.kernel.dk/linux-block
>> 
>>    Pull core block updates from Jens Axboe:
>>     "This first core part of the block IO changes contains:
>> 
>>       - Cleanup of the bio IO error signaling from Christoph.  We
>> used to
>>         rely on the uptodate bit and passing around of an error, now
>> we
>>         store the error in the bio itself.
>> 
>>       - Improvement of the above from myself, by shrinking the bio
>> size
>>         down again to fit in two cachelines on x86-64.
>> 
>>       - Revert of the max_hw_sectors cap removal from a revision
>> again,
>>         from Jeff Moyer.  This caused performance regressions in
>> various
>>         tests.  Reinstate the limit, bump it to a more reasonable
>> size
>>         instead.
>> 
>>       - Make /sys/block/<dev>/queue/discard_max_bytes writeable, by
>> me.
>>         Most devices have huge trim limits, which can cause nasty
>> latencies
>>         when deleting files.  Enable the admin to configure the size
>> down.
>>         We will look into having a more sane default instead of
>> UINT_MAX
>>         sectors.
>> 
>>       - Improvement of the SGP gaps logic from Keith Busch.
>> 
>>       - Enable the block core to handle arbitrarily sized bios,
>> which
>>         enables a nice simplification of bio_add_page() (which is an
>> IO hot
>>         path).  From Kent.
>> 
>>       - Improvements to the partition io stats accounting, making it
>>         faster.  From Ming Lei.
>> 
>>       - Also from Ming Lei, a basic fixup for overflow of the sysfs
>> pending
>>         file in blk-mq, as well as a fix for a blk-mq timeout race
>>         condition.
>> 
>>       - Ming Lin has been carrying Kents above mentioned patches
>> forward
>>         for a while, and testing them.  Ming also did a few fixes
>> around
>>         that.
>> 
>>       - Sasha Levin found and fixed a use-after-free problem
>> introduced by
>>         the bio->bi_error changes from Christoph.
>> 
>>       - Small blk cgroup cleanup from Viresh Kumar"
>> 
>>    * 'for-4.3/core' of git://git.kernel.dk/linux-block: (26 commits)
>>      blk: Fix bio_io_vec index when checking bvec gaps
>>      block: Replace SG_GAPS with new queue limits mask
>>      block: bump BLK_DEF_MAX_SECTORS to 2560
>>      Revert "block: remove artifical max_hw_sectors cap"
>>      blk-mq: fix race between timeout and freeing request
>>      blk-mq: fix buffer overflow when reading sysfs file of
>> 'pending'
>>      Documentation: update notes in biovecs about arbitrarily sized
>> bios
>>      block: remove bio_get_nr_vecs()
>>      fs: use helper bio_add_page() instead of open coding on
>> bi_io_vec
>>      block: kill merge_bvec_fn() completely
>>      md/raid5: get rid of bio_fits_rdev()
>>      md/raid5: split bio for chunk_aligned_read
>>      block: remove split code in blkdev_issue_{discard,write_same}
>>      btrfs: remove bio splitting and merge_bvec_fn() calls
>>      bcache: remove driver private bio splitting code
>>      block: simplify bio_add_page()
>>      block: make generic_make_request handle arbitrarily sized bios
>>      blk-cgroup: Drop unlikely before IS_ERR(_OR_NULL)
>>      block: don't access bio->bi_error after bio_put()
>>      block: shrink struct bio down to 2 cache lines again
>>      ...
> 
> If you can bisect it down to the exact commit, I might be able to work
> out what's the problem.  Otherwise, even in an all modular config, I
> can't reproduce this on 4.5-rc4, so it may be fixed upstream (just not
> backported).


Okay, the bug was introduced by the following change:

commit 54efd50bfd873e2dbf784e0b21a8027ba4299a3e
Author: Kent Overstreet <kent.overstreet@gmail.com>
Date:   Thu Apr 23 22:37:18 2015 -0700

    block: make generic_make_request handle arbitrarily sized bios
    
    The way the block layer is currently written, it goes to great lengths
    to avoid having to split bios; upper layer code (such as bio_add_page())
    checks what the underlying device can handle and tries to always create
    bios that don't need to be split.
    
    But this approach becomes unwieldy and eventually breaks down with
    stacked devices and devices with dynamic limits, and it adds a lot of
    complexity. If the block layer could split bios as needed, we could
    eliminate a lot of complexity elsewhere - particularly in stacked
    drivers. Code that creates bios can then create whatever size bios are
    convenient, and more importantly stacked drivers don't have to deal with
    both their own bio size limitations and the limitations of the
    (potentially multiple) devices underneath them.  In the future this will
    let us delete merge_bvec_fn and a bunch of other code.
    
    We do this by adding calls to blk_queue_split() to the various
    make_request functions that need it - a few can already handle arbitrary
    size bios. Note that we add the call _after_ any call to
    blk_queue_bounce(); this means that blk_queue_split() and
    blk_recalc_rq_segments() don't need to be concerned with bouncing
    affecting segment merging.
    
    Some make_request_fn() callbacks were simple enough to audit and verify
    they don't need blk_queue_split() calls. The skipped ones are:
    
     * nfhd_make_request (arch/m68k/emu/nfblock.c)
     * axon_ram_make_request (arch/powerpc/sysdev/axonram.c)
     * simdisk_make_request (arch/xtensa/platforms/iss/simdisk.c)
     * brd_make_request (ramdisk - drivers/block/brd.c)
     * mtip_submit_request (drivers/block/mtip32xx/mtip32xx.c)
     * loop_make_request
     * null_queue_bio
     * bcache's make_request fns
    
    Some others are almost certainly safe to remove now, but will be left
    for future patches.
    
    Cc: Jens Axboe <axboe@kernel.dk>
    Cc: Christoph Hellwig <hch@infradead.org>
    Cc: Al Viro <viro@zeniv.linux.org.uk>
    Cc: Ming Lei <ming.lei@canonical.com>
    Cc: Neil Brown <neilb@suse.de>
    Cc: Alasdair Kergon <agk@redhat.com>
    Cc: Mike Snitzer <snitzer@redhat.com>
    Cc: dm-devel@redhat.com
    Cc: Lars Ellenberg <drbd-dev@lists.linbit.com>
    Cc: drbd-user@lists.linbit.com
    Cc: Jiri Kosina <jkosina@suse.cz>
    Cc: Geoff Levand <geoff@infradead.org>
    Cc: Jim Paris <jim@jtan.com>
    Cc: Philip Kelleher <pjk1939@linux.vnet.ibm.com>
    Cc: Minchan Kim <minchan@kernel.org>
    Cc: Nitin Gupta <ngupta@vflare.org>
    Cc: Oleg Drokin <oleg.drokin@intel.com>
    Cc: Andreas Dilger <andreas.dilger@intel.com>
    Acked-by: NeilBrown <neilb@suse.de> (for the 'md/md.c' bits)
    Acked-by: Mike Snitzer <snitzer@redhat.com>
    Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
    Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
    [dpark: skip more mq-based drivers, resolve merge conflicts, etc.]
    Signed-off-by: Dongsu Park <dpark@posteo.net>
    Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
    Signed-off-by: Jens Axboe <axboe@fb.com>

Attached diff.

Dave
--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-2-1029604226
Content-Disposition: attachment;
	filename=generic_make_request.d.txt
Content-Type: text/plain;
	name="generic_make_request.d.txt"
Content-Transfer-Encoding: quoted-printable

diff --git a/block/blk-core.c b/block/blk-core.c
index d1796b5..60912e9 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -643,6 +643,10 @@ struct request_queue *blk_alloc_queue_node(gfp_t =
gfp_mask, int node_id)
 	if (q->id < 0)
 		goto fail_q;
=20
+	q->bio_split =3D bioset_create(BIO_POOL_SIZE, 0);
+	if (!q->bio_split)
+		goto fail_id;
+
 	q->backing_dev_info.ra_pages =3D
 			(VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
 	q->backing_dev_info.capabilities =3D BDI_CAP_CGROUP_WRITEBACK;
@@ -651,7 +655,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t =
gfp_mask, int node_id)
=20
 	err =3D bdi_init(&q->backing_dev_info);
 	if (err)
-		goto fail_id;
+		goto fail_split;
=20
 	setup_timer(&q->backing_dev_info.laptop_mode_wb_timer,
 		    laptop_mode_timer_fn, (unsigned long) q);
@@ -693,6 +697,8 @@ struct request_queue *blk_alloc_queue_node(gfp_t =
gfp_mask, int node_id)
=20
 fail_bdi:
 	bdi_destroy(&q->backing_dev_info);
+fail_split:
+	bioset_free(q->bio_split);
 fail_id:
 	ida_simple_remove(&blk_queue_ida, q->id);
 fail_q:
@@ -1610,6 +1616,8 @@ static void blk_queue_bio(struct request_queue *q, =
struct bio *bio)
 	struct request *req;
 	unsigned int request_count =3D 0;
=20
+	blk_queue_split(q, &bio, q->bio_split);
+
 	/*
 	 * low level driver can indicate that it wants pages above a
 	 * certain limit bounced to low memory (ie for highmem, or even
@@ -1832,15 +1840,6 @@ generic_make_request_checks(struct bio *bio)
 		goto end_io;
 	}
=20
-	if (likely(bio_is_rw(bio) &&
-		   nr_sectors > queue_max_hw_sectors(q))) {
-		printk(KERN_ERR "bio too big device %s (%u > %u)\n",
-		       bdevname(bio->bi_bdev, b),
-		       bio_sectors(bio),
-		       queue_max_hw_sectors(q));
-		goto end_io;
-	}
-
 	part =3D bio->bi_bdev->bd_part;
 	if (should_fail_request(part, bio->bi_iter.bi_size) ||
 	    should_fail_request(&part_to_disk(part)->part0,
diff --git a/block/blk-merge.c b/block/blk-merge.c
index a455b98..d9c3a75 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -9,12 +9,158 @@
=20
 #include "blk.h"
=20
+static struct bio *blk_bio_discard_split(struct request_queue *q,
+					 struct bio *bio,
+					 struct bio_set *bs)
+{
+	unsigned int max_discard_sectors, granularity;
+	int alignment;
+	sector_t tmp;
+	unsigned split_sectors;
+
+	/* Zero-sector (unknown) and one-sector granularities are the =
same.  */
+	granularity =3D max(q->limits.discard_granularity >> 9, 1U);
+
+	max_discard_sectors =3D min(q->limits.max_discard_sectors, =
UINT_MAX >> 9);
+	max_discard_sectors -=3D max_discard_sectors % granularity;
+
+	if (unlikely(!max_discard_sectors)) {
+		/* XXX: warn */
+		return NULL;
+	}
+
+	if (bio_sectors(bio) <=3D max_discard_sectors)
+		return NULL;
+
+	split_sectors =3D max_discard_sectors;
+
+	/*
+	 * If the next starting sector would be misaligned, stop the =
discard at
+	 * the previous aligned sector.
+	 */
+	alignment =3D (q->limits.discard_alignment >> 9) % granularity;
+
+	tmp =3D bio->bi_iter.bi_sector + split_sectors - alignment;
+	tmp =3D sector_div(tmp, granularity);
+
+	if (split_sectors > tmp)
+		split_sectors -=3D tmp;
+
+	return bio_split(bio, split_sectors, GFP_NOIO, bs);
+}
+
+static struct bio *blk_bio_write_same_split(struct request_queue *q,
+					    struct bio *bio,
+					    struct bio_set *bs)
+{
+	if (!q->limits.max_write_same_sectors)
+		return NULL;
+
+	if (bio_sectors(bio) <=3D q->limits.max_write_same_sectors)
+		return NULL;
+
+	return bio_split(bio, q->limits.max_write_same_sectors, =
GFP_NOIO, bs);
+}
+
+static struct bio *blk_bio_segment_split(struct request_queue *q,
+					 struct bio *bio,
+					 struct bio_set *bs)
+{
+	struct bio *split;
+	struct bio_vec bv, bvprv;
+	struct bvec_iter iter;
+	unsigned seg_size =3D 0, nsegs =3D 0;
+	int prev =3D 0;
+
+	struct bvec_merge_data bvm =3D {
+		.bi_bdev	=3D bio->bi_bdev,
+		.bi_sector	=3D bio->bi_iter.bi_sector,
+		.bi_size	=3D 0,
+		.bi_rw		=3D bio->bi_rw,
+	};
+
+	bio_for_each_segment(bv, bio, iter) {
+		if (q->merge_bvec_fn &&
+		    q->merge_bvec_fn(q, &bvm, &bv) < (int) bv.bv_len)
+			goto split;
+
+		bvm.bi_size +=3D bv.bv_len;
+
+		if (bvm.bi_size >> 9 > queue_max_sectors(q))
+			goto split;
+
+		/*
+		 * If the queue doesn't support SG gaps and adding this
+		 * offset would create a gap, disallow it.
+		 */
+		if (q->queue_flags & (1 << QUEUE_FLAG_SG_GAPS) &&
+		    prev && bvec_gap_to_prev(&bvprv, bv.bv_offset))
+			goto split;
+
+		if (prev && blk_queue_cluster(q)) {
+			if (seg_size + bv.bv_len > =
queue_max_segment_size(q))
+				goto new_segment;
+			if (!BIOVEC_PHYS_MERGEABLE(&bvprv, &bv))
+				goto new_segment;
+			if (!BIOVEC_SEG_BOUNDARY(q, &bvprv, &bv))
+				goto new_segment;
+
+			seg_size +=3D bv.bv_len;
+			bvprv =3D bv;
+			prev =3D 1;
+			continue;
+		}
+new_segment:
+		if (nsegs =3D=3D queue_max_segments(q))
+			goto split;
+
+		nsegs++;
+		bvprv =3D bv;
+		prev =3D 1;
+		seg_size =3D bv.bv_len;
+	}
+
+	return NULL;
+split:
+	split =3D bio_clone_bioset(bio, GFP_NOIO, bs);
+
+	split->bi_iter.bi_size -=3D iter.bi_size;
+	bio->bi_iter =3D iter;
+
+	if (bio_integrity(bio)) {
+		bio_integrity_advance(bio, split->bi_iter.bi_size);
+		bio_integrity_trim(split, 0, bio_sectors(split));
+	}
+
+	return split;
+}
+
+void blk_queue_split(struct request_queue *q, struct bio **bio,
+		     struct bio_set *bs)
+{
+	struct bio *split;
+
+	if ((*bio)->bi_rw & REQ_DISCARD)
+		split =3D blk_bio_discard_split(q, *bio, bs);
+	else if ((*bio)->bi_rw & REQ_WRITE_SAME)
+		split =3D blk_bio_write_same_split(q, *bio, bs);
+	else
+		split =3D blk_bio_segment_split(q, *bio, q->bio_split);
+
+	if (split) {
+		bio_chain(split, *bio);
+		generic_make_request(*bio);
+		*bio =3D split;
+	}
+}
+EXPORT_SYMBOL(blk_queue_split);
+
 static unsigned int __blk_recalc_rq_segments(struct request_queue *q,
 					     struct bio *bio,
 					     bool no_sg_merge)
 {
 	struct bio_vec bv, bvprv =3D { NULL };
-	int cluster, high, highprv =3D 1;
+	int cluster, prev =3D 0;
 	unsigned int seg_size, nr_phys_segs;
 	struct bio *fbio, *bbio;
 	struct bvec_iter iter;
@@ -36,7 +182,6 @@ static unsigned int __blk_recalc_rq_segments(struct =
request_queue *q,
 	cluster =3D blk_queue_cluster(q);
 	seg_size =3D 0;
 	nr_phys_segs =3D 0;
-	high =3D 0;
 	for_each_bio(bio) {
 		bio_for_each_segment(bv, bio, iter) {
 			/*
@@ -46,13 +191,7 @@ static unsigned int __blk_recalc_rq_segments(struct =
request_queue *q,
 			if (no_sg_merge)
 				goto new_segment;
=20
-			/*
-			 * the trick here is making sure that a high =
page is
-			 * never considered part of another segment, =
since
-			 * that might change with the bounce page.
-			 */
-			high =3D page_to_pfn(bv.bv_page) > =
queue_bounce_pfn(q);
-			if (!high && !highprv && cluster) {
+			if (prev && cluster) {
 				if (seg_size + bv.bv_len
 				    > queue_max_segment_size(q))
 					goto new_segment;
@@ -72,8 +211,8 @@ new_segment:
=20
 			nr_phys_segs++;
 			bvprv =3D bv;
+			prev =3D 1;
 			seg_size =3D bv.bv_len;
-			highprv =3D high;
 		}
 		bbio =3D bio;
 	}
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 9455902..81edbd9 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1287,6 +1287,8 @@ static void blk_mq_make_request(struct =
request_queue *q, struct bio *bio)
 		return;
 	}
=20
+	blk_queue_split(q, &bio, q->bio_split);
+
 	if (!is_flush_fua && !blk_queue_nomerges(q) &&
 	    blk_attempt_plug_merge(q, bio, &request_count, =
&same_queue_rq))
 		return;
@@ -1372,6 +1374,8 @@ static void blk_sq_make_request(struct =
request_queue *q, struct bio *bio)
 		return;
 	}
=20
+	blk_queue_split(q, &bio, q->bio_split);
+
 	if (!is_flush_fua && !blk_queue_nomerges(q) &&
 	    blk_attempt_plug_merge(q, bio, &request_count, NULL))
 		return;
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index b1f34e4..3e44a9d 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -561,6 +561,9 @@ static void blk_release_queue(struct kobject *kobj)
=20
 	blk_trace_shutdown(q);
=20
+	if (q->bio_split)
+		bioset_free(q->bio_split);
+
 	ida_simple_remove(&blk_queue_ida, q->id);
 	call_rcu(&q->rcu_head, blk_free_queue_rcu);
 }
diff --git a/drivers/block/drbd/drbd_req.c =
b/drivers/block/drbd/drbd_req.c
index 9cb4116..923c857 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -1499,6 +1499,8 @@ void drbd_make_request(struct request_queue *q, =
struct bio *bio)
 	struct drbd_device *device =3D (struct drbd_device *) =
q->queuedata;
 	unsigned long start_jif;
=20
+	blk_queue_split(q, &bio, q->bio_split);
+
 	start_jif =3D jiffies;
=20
 	/*
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index a7a259e..ee7ad5e 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2447,6 +2447,10 @@ static void pkt_make_request(struct request_queue =
*q, struct bio *bio)
 	char b[BDEVNAME_SIZE];
 	struct bio *split;
=20
+	blk_queue_bounce(q, &bio);
+
+	blk_queue_split(q, &bio, q->bio_split);
+
 	pd =3D q->queuedata;
 	if (!pd) {
 		pr_err("%s incorrect request queue\n",
@@ -2477,8 +2481,6 @@ static void pkt_make_request(struct request_queue =
*q, struct bio *bio)
 		goto end_io;
 	}
=20
-	blk_queue_bounce(q, &bio);
-
 	do {
 		sector_t zone =3D get_zone(bio->bi_iter.bi_sector, pd);
 		sector_t last_zone =3D get_zone(bio_end_sector(bio) - 1, =
pd);
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index 49b4706..d89fcac 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -606,6 +606,8 @@ static void ps3vram_make_request(struct =
request_queue *q, struct bio *bio)
=20
 	dev_dbg(&dev->core, "%s\n", __func__);
=20
+	blk_queue_split(q, &bio, q->bio_split);
+
 	spin_lock_irq(&priv->lock);
 	busy =3D !bio_list_empty(&priv->list);
 	bio_list_add(&priv->list, bio);
diff --git a/drivers/block/rsxx/dev.c b/drivers/block/rsxx/dev.c
index 63b9d2f..3163e4cdc 100644
--- a/drivers/block/rsxx/dev.c
+++ b/drivers/block/rsxx/dev.c
@@ -151,6 +151,8 @@ static void rsxx_make_request(struct request_queue =
*q, struct bio *bio)
 	struct rsxx_bio_meta *bio_meta;
 	int st =3D -EINVAL;
=20
+	blk_queue_split(q, &bio, q->bio_split);
+
 	might_sleep();
=20
 	if (!card)
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index 3b3afd2..04d6579 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -531,6 +531,8 @@ static void mm_make_request(struct request_queue *q, =
struct bio *bio)
 		 (unsigned long long)bio->bi_iter.bi_sector,
 		 bio->bi_iter.bi_size);
=20
+	blk_queue_split(q, &bio, q->bio_split);
+
 	spin_lock_irq(&card->lock);
 	*card->biotail =3D bio;
 	bio->bi_next =3D NULL;
diff --git a/drivers/block/zram/zram_drv.c =
b/drivers/block/zram/zram_drv.c
index 68c3d48..aec781a 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -900,6 +900,8 @@ static void zram_make_request(struct request_queue =
*queue, struct bio *bio)
 	if (unlikely(!zram_meta_get(zram)))
 		goto error;
=20
+	blk_queue_split(queue, &bio, queue->bio_split);
+
 	if (!valid_io_request(zram, bio->bi_iter.bi_sector,
 					bio->bi_iter.bi_size)) {
 		atomic64_inc(&zram->stats.invalid_io);
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 7f367fc..069f8d7 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1799,6 +1799,8 @@ static void dm_make_request(struct request_queue =
*q, struct bio *bio)
=20
 	map =3D dm_get_live_table(md, &srcu_idx);
=20
+	blk_queue_split(q, &bio, q->bio_split);
+
 	generic_start_io_acct(rw, bio_sectors(bio), =
&dm_disk(md)->part0);
=20
 	/* if we're suspended, we have to queue this io for later */
diff --git a/drivers/md/md.c b/drivers/md/md.c
index ac4381a..e1d8723 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -257,6 +257,8 @@ static void md_make_request(struct request_queue *q, =
struct bio *bio)
 	unsigned int sectors;
 	int cpu;
=20
+	blk_queue_split(q, &bio, q->bio_split);
+
 	if (mddev =3D=3D NULL || mddev->pers =3D=3D NULL
 	    || !mddev->ready) {
 		bio_io_error(bio);
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 8bcb822..29ea239 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -826,6 +826,8 @@ dcssblk_make_request(struct request_queue *q, struct =
bio *bio)
 	unsigned long source_addr;
 	unsigned long bytes_done;
=20
+	blk_queue_split(q, &bio, q->bio_split);
+
 	bytes_done =3D 0;
 	dev_info =3D bio->bi_bdev->bd_disk->private_data;
 	if (dev_info =3D=3D NULL)
diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c
index 93856b9..02871f1 100644
--- a/drivers/s390/block/xpram.c
+++ b/drivers/s390/block/xpram.c
@@ -190,6 +190,8 @@ static void xpram_make_request(struct request_queue =
*q, struct bio *bio)
 	unsigned long page_addr;
 	unsigned long bytes;
=20
+	blk_queue_split(q, &bio, q->bio_split);
+
 	if ((bio->bi_iter.bi_sector & 7) !=3D 0 ||
 	    (bio->bi_iter.bi_size & 4095) !=3D 0)
 		/* Request is not page-aligned. */
diff --git a/drivers/staging/lustre/lustre/llite/lloop.c =
b/drivers/staging/lustre/lustre/llite/lloop.c
index cc00fd1..1e33d54 100644
--- a/drivers/staging/lustre/lustre/llite/lloop.c
+++ b/drivers/staging/lustre/lustre/llite/lloop.c
@@ -340,6 +340,8 @@ static void loop_make_request(struct request_queue =
*q, struct bio *old_bio)
 	int rw =3D bio_rw(old_bio);
 	int inactive;
=20
+	blk_queue_split(q, &old_bio, q->bio_split);
+
 	if (!lo)
 		goto err;
=20
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 243f29e..ca778d9 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -463,6 +463,7 @@ struct request_queue {
=20
 	struct blk_mq_tag_set	*tag_set;
 	struct list_head	tag_set_list;
+	struct bio_set		*bio_split;
 };
=20
 #define QUEUE_FLAG_QUEUED	1	/* uses generic tag queueing */
@@ -783,6 +784,8 @@ extern void blk_rq_unprep_clone(struct request *rq);
 extern int blk_insert_cloned_request(struct request_queue *q,
 				     struct request *rq);
 extern void blk_delay_queue(struct request_queue *, unsigned long);
+extern void blk_queue_split(struct request_queue *, struct bio **,
+			    struct bio_set *);
 extern void blk_recount_segments(struct request_queue *, struct bio *);
 extern int scsi_verify_blk_ioctl(struct block_device *, unsigned int);
 extern int scsi_cmd_blk_ioctl(struct block_device *, fmode_t,

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
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Subject: Re: SCSI bug
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On Sun, 2016-02-21 at 09:45 -0500, John David Anglin wrote:
> I tried HEAD this morning and problem is still present.  The warning
> in blk-merge.c occurs
> first followed by BUG:
> kernel BUG at drivers/scsi/scsi_lib.c:1097! 
> 
> Entire console output is shown below:

OK, this might actually be a clue.  I've attached my full boot below
for good measure.  There are two significant differences, firstly the
gcc version: you're 4.9 and I'm 4.5 and secondly the ata drivers.  I
have no ata drivers for the CD rom in my initrd (they caused problems a
while ago, so I have them blacklisted).  Can you take all the ata
drivers out of your initrd and see if you still get the panic.  If not,
we know where the fault is.

James

---

Command line for kernel: ' root=/dev/sda3 panic=5 console=ttyS1 palo_kernel=1/vmlinux-test'
Selected kernel: /vmlinux-test from partition 1
Selected ramdisk: /initrd.img-test from partition 1
ELF64 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 229872 mediaptr 0x1000
Segment 1 load 00139000 size 148016 mediaptr 0x3a000
Segment 2 load 00200000 size 8622768 mediaptr 0x5f000
Segment 3 load 00b00000 size 1583856 mediaptr 0x899000
Loading ramdisk 3119670 bytes @ 3fcf4000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Linux version 4.5.0-rc2 (jejb@ion) (gcc version 4.2.4 (Debian 4.2.4-6)) #1 SMP Fri Feb 5 17:20:38 PST 2016
[    0.000000] unwind_init: start = 0x409e92d0, end = 0x40a392b0, entries = 20478
[    0.000000] WARNING: Out of order unwind entry! 00000000409ed440 and 00000000409ed450
[    0.000000] WARNING: Out of order unwind entry! 00000000409ed450 and 00000000409ed460
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee160 and 00000000409ee170
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee170 and 00000000409ee180
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee1f0 and 00000000409ee200
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee200 and 00000000409ee210
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee210 and 00000000409ee220
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee220 and 00000000409ee230
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee230 and 00000000409ee240
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee240 and 00000000409ee250
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee250 and 00000000409ee260
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee260 and 00000000409ee270
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee270 and 00000000409ee280
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee280 and 00000000409ee290
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee2b0 and 00000000409ee2c0
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee2c0 and 00000000409ee2d0
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee2d0 and 00000000409ee2e0
[    0.000000] WARNING: Out of order unwind entry! 00000000409ee2e0 and 00000000409ee2f0
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00008870 00000491 00000000 00000002 3e0505e7352af710 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000301
[    0.000000] CPUID vers 20 rev 4 (0x00000284)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/800/rp3440  
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
[    0.000000] Total Memory: 2046 MB
[    0.000000] initrd: 7fcf4000-7ffeda36
[    0.000000] initrd: reserving 3fcf4000-3ffeda36 (mem_max 7fe00000)
[    0.000000] PERCPU: Embedded 18 pages/cpu @0000000042020000 s33328 r8192 d32208 u73728
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 2 zonelists in Zone order, mobility grouping on.  Total pages: 515592
[    0.000000] Kernel command line:  root=/dev/sda3 panic=5 console=ttyS1 palo_kernel=1/vmlinux-test
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[    0.000000] Sorting __ex_table...
[    0.000000] Memory: 2039128K/2095104K available (6156K kernel code, 2727K rwdata, 1214K rodata, 1024K init, 664K bss, 55976K reserved, 0K cma-reserved)
[    0.000000] virtual kernel memory layout:
    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    0.000000]     memory  : 0x0000000040000000 - 0x00000040bfe00000   (264190 MB)
    0.000000]       .init : 0x0000000040100000 - 0x0000000040200000   (1024 kB)
    0.000000]       .data : 0x0000000040803000 - 0x0000000040bdc8d0   (3942 kB)
    0.000000]       .text : 0x0000000040200000 - 0x0000000040803000   (6156 kB)
[    0.000000] Hierarchical RCU implementation.
[    0.000000] 	Build-time adjustment of leaf fanout to 64.
[    0.000000] NR_IRQS:128
[    0.000000] clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0xb881be7834, max_idle_ns: 440795218296 ns
[    0.000000] Console: colour dummy device 160x64
[    0.004000] Calibrating delay loop... 1594.36 BogoMIPS (lpj=3188736)
[    0.028000] pid_max: default: 32768 minimum: 301
[    0.028000] Security Framework initialized
[    0.028000] Yama: becoming mindful.
[    0.028000] AppArmor: AppArmor disabled by boot time parameter
[    0.036000] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
[    0.036000] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
[    0.044000] Brought up 1 CPUs
[    0.044000] devtmpfs: initialized
[    0.052000] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.076000] NET: Registered protocol family 16
[    0.076000] EISA bus registered
[    0.080000] Searching for devices...
[    0.212000] Found devices:
[    0.212000] 1. Storm Peak Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x887, 0x00004 }
[    0.212000] 2. Storm Peak Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x887, 0x00004 }
[    0.212000] 3. Storm Peak Slow at 0xfffffffffe798000 [152] { 0, 0x0, 0x887, 0x00004 }
[    0.220000] 4. Storm Peak Slow at 0xfffffffffe799000 [153] { 0, 0x0, 0x887, 0x00004 }
[    0.224000] 5. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
[    0.232000] 6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
[    0.240000] 7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
[    0.240000] 8. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
[    0.248000] 9. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
[    0.256000] 10. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
[    0.264000] 11. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
[    0.272000] 12. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
[    0.280000] 13. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
[    0.280000] 14. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
[    0.288000] Enabling PDC_PAT chassis codes support v0.05
[    0.912000] Releasing cpu 1 now, hpa=fffffffffe781000
[    0.960000] FP[1] enabled: Rev 1 Model 20
[    0.968000] Releasing cpu 2 now, hpa=fffffffffe798000
[    1.016000] FP[2] enabled: Rev 1 Model 20
[    1.024000] Releasing cpu 3 now, hpa=fffffffffe799000
[    1.084000] FP[3] enabled: Rev 1 Model 20
[    1.088000] CPU(s): 4 out of 4 PA8800 (Mako) at 800.010600 MHz online
[    1.100000] Setting cache flush threshold to 32768 kB
[    1.100000] Setting TLB flush threshold to 1436 kB
[    1.140000] SBA found Pluto 2.3 at 0xfffffffffed00000
[    1.340000] Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
[    1.396000] LBA 0:0: PCI host bridge to bus 0000:00
[    1.396000] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    1.396000] pci_bus 0000:00: root bus resource [mem 0xffffffff80000000-0xffffffff8fffffff] (bus address [0x80000000-0x8fffffff])
[    1.404000] pci_bus 0000:00: root bus resource [bus 00-07]
[    1.428000] Mercury version TR3.2 (0x32) found at 0xfffffffffed22000
[    1.484000] LBA 0:1: PCI host bridge to bus 0000:20
[    1.484000] pci_bus 0000:20: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
[    1.484000] pci_bus 0000:20: root bus resource [mem 0xffffffff90000000-0xffffffff9fffffff] (bus address [0x90000000-0x9fffffff])
[    1.492000] pci_bus 0000:20: root bus resource [bus 20-27]
[    1.524000] Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
[    1.580000] LBA 0:2: PCI host bridge to bus 0000:40
[    1.580000] pci_bus 0000:40: root bus resource [io  0x20000-0x2ffff] (bus address [0x0000-0xffff])
[    1.580000] pci_bus 0000:40: root bus resource [mem 0xffffffffa0000000-0xffffffffafffffff] (bus address [0xa0000000-0xafffffff])
[    1.588000] pci_bus 0000:40: root bus resource [bus 40-47]
[    1.620000] Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
[    1.676000] LBA 0:3: PCI host bridge to bus 0000:60
[    1.676000] pci_bus 0000:60: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0xffff])
[    1.676000] pci_bus 0000:60: root bus resource [mem 0xffffffffb0000000-0xffffffffbfffffff] (bus address [0xb0000000-0xbfffffff])
[    1.684000] pci_bus 0000:60: root bus resource [bus 60-67]
[    1.716000] Mercury version TR3.2 (0x32) found at 0xfffffffffed28000
[    1.748000] LBA: lmmio_space [0xffffffffc0000000-0xffffffffdfffffff] - new
[    1.772000] LBA 0:4: PCI host bridge to bus 0000:80
[    1.772000] pci_bus 0000:80: root bus resource [io  0x40000-0x4ffff] (bus address [0x0000-0xffff])
[    1.772000] pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffdfffffff] (bus address [0xc0000000-0xdfffffff])
[    1.784000] pci_bus 0000:80: root bus resource [bus 80-87]
[    1.812000] Mercury version TR3.2 (0x32) found at 0xfffffffffed2c000
[    1.868000] LBA 0:6: PCI host bridge to bus 0000:c0
[    1.868000] pci_bus 0000:c0: root bus resource [io  0x50000-0x5ffff] (bus address [0x0000-0xffff])
[    1.872000] pci_bus 0000:c0: root bus resource [mem 0xffffffffe0000000-0xffffffffefffffff] (bus address [0xe0000000-0xefffffff])
[    1.880000] pci_bus 0000:c0: root bus resource [bus c0-c7]
[    1.912000] Mercury version TR3.2 (0x32) found at 0xfffffffffed2e000
[    1.944000] LBA: lmmio_space [0xfffffffff0000000-0xfffffffffe77ffff] - new
[    1.968000] LBA 0:7: PCI host bridge to bus 0000:e0
[    1.968000] pci_bus 0000:e0: root bus resource [io  0x60000-0x6ffff] (bus address [0x0000-0xffff])
[    1.968000] pci_bus 0000:e0: root bus resource [mem 0xfffffffff0000000-0xfffffffffe77ffff] (bus address [0xf0000000-0xfe77ffff])
[    1.976000] pci_bus 0000:e0: root bus resource [bus e0-e7]
[    1.988000] powersw: Soft power switch support not available.
[    2.024000] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[    2.048000] vgaarb: setting as boot device: PCI:0000:e0:02.0
[    2.048000] vgaarb: device added: PCI:0000:e0:02.0,decodes=io+mem,owns=io+mem,locks=none
[    2.048000] vgaarb: loaded
[    2.048000] vgaarb: bridge control possible 0000:e0:02.0
[    2.056000] VFS: Disk quotas dquot_6.6.0
[    2.056000] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    2.068000] NET: Registered protocol family 2
[    2.092000] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
[    2.092000] TCP bind hash table entries: 16384 (order: 6, 262144 bytes)
[    2.092000] TCP: Hash tables configured (established 16384 bind 16384)
[    2.100000] UDP hash table entries: 1024 (order: 3, 32768 bytes)
[    2.100000] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes)
[    2.108000] NET: Registered protocol family 1
[    2.176000] Unpacking initramfs...
[    2.348000] Freeing initrd memory: 3044K (000000007fcf4000 - 000000007ffed000)
[    2.348000] Chassis warnings not supported.
[    2.348000] Performance monitoring counters enabled for Storm Peak Slow
[    2.352000] futex hash table entries: 2048 (order: 4, 65536 bytes)
[    2.356000] audit: initializing netlink subsys (disabled)
[    2.364000] audit: type=2000 audit(1456077963.364:1): initialized
[    2.364000] zbud: loaded
[    2.372000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[    2.372000] io scheduler noop registered
[    2.376000] io scheduler deadline registered
[    2.376000] io scheduler cfq registered (default)
[    2.384000] PDC Stable Storage facility v0.30
[    2.432000] STI GSC/PCI core graphics driver Version 0.9b
[    2.432000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    2.476000] 0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 75, base_baud = 115200) is a 16550A
[    2.520000] 0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 75, base_baud = 115200) is a 16550A
[    2.520000] console [ttyS1] enabled
[    2.520000] console [ttyS1] enabled
[    2.524000] bootconsole [ttyB0] disabled
[    2.524000] bootconsole [ttyB0] disabled
[    2.552000] 0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 75, base_baud = 115200) is a 16550A
[    2.572000] 0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 75, base_baud = 115200) is a 16550A
[    2.572000] Linux agpgart interface v0.103
[    2.572000] quicksilver: No AGP devices found.
[    2.572000] [drm] Initialized drm 1.1.0 20060810
[    2.580000] mousedev: PS/2 mouse device common for all mice
[    2.588000] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[    2.588000] ledtrig-cpu: registered to indicate activity on CPUs
[    2.620000] NET: Registered protocol family 10
[    2.620000] mip6: Mobile IPv6
[    2.620000] NET: Registered protocol family 17
[    2.620000] mpls_gso: MPLS GSO support
[    2.620000] registered taskstats version 1
[    2.628000] zswap: loaded using pool lzo/zbud
[    2.636000] rtc-generic rtc-generic: setting system clock to 2016-02-21 18:06:03 UTC (1456077963)
[    2.660000] Freeing unused kernel memory: 1024K (0000000040100000 - 0000000040200000)
Loading, please wait...
/scripts/init-top/udev: line 14: can't create /sys/kernel/uevent_helper: Permission denied
Begin: Loading essential drivers ... [    3.312000] SCSI subsystem initialized
[    3.880000] sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 70
[    3.884000] sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
[    3.924000] sym0: SCSI BUS has been reset.
[    3.924000] scsi host0: sym-2.2.3
[    4.124000] sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 71
[    4.128000] sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
[    4.168000] sym1: SCSI BUS has been reset.
[    4.168000] scsi host1: sym-2.2.3
[    6.936000] scsi 0:0:0:0: Direct-Access     HP 73.4G ST373405LC       HP03 PQ: 0 ANSI: 2
[    6.936000] scsi target0:0:0: tagged command queuing enabled, command queue depth 16.
[    6.936000] scsi target0:0:0: Beginning Domain Validation
[    6.956000] scsi target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
[    6.972000] scsi target0:0:0: Ending Domain Validation
[    6.980000] scsi 0:0:1:0: Direct-Access     HP 73.4G MAX3073NC        HPC1 PQ: 0 ANSI: 3
[    6.980000] scsi target0:0:1: tagged command queuing enabled, command queue depth 16.
[    6.980000] scsi target0:0:1: Beginning Domain Validation
[    6.996000] scsi target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
[    7.004000] scsi target0:0:1: Ending Domain Validation
[    7.816000] scsi 1:0:2:0: Direct-Access     HP 73.4G ST373405LC       HP03 PQ: 0 ANSI: 2
[    7.820000] scsi target1:0:2: tagged command queuing enabled, command queue depth 16.
[    7.820000] scsi target1:0:2: Beginning Domain Validation
[    7.840000] scsi target1:0:2: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
[    7.856000] scsi target1:0:2: Ending Domain Validation
[    8.936000] random: nonblocking pool is initialized
[   10.888000] sd 0:0:0:0: [sda] 143374738 512-byte logical blocks: (73.4 GB/68.4 GiB)
[   10.888000] sd 0:0:1:0: [sdb] 143374738 512-byte logical blocks: (73.4 GB/68.4 GiB)
[   10.888000] sd 0:0:0:0: [sda] Write Protect is off
[   10.892000] sd 0:0:1:0: [sdb] Write Protect is off
[   10.892000] sd 0:0:1:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   10.916000] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   10.928000]  sdb: sdb1 sdb2 sdb3
[   10.968000]  sda: sda1 sda2 sda3
[   10.988000] sd 0:0:1:0: [sdb] Attached SCSI disk
[   10.996000] sd 0:0:0:0: [sda] Attached SCSI disk
[   11.428000] sd 1:0:2:0: [sdc] 143374738 512-byte logical blocks: (73.4 GB/68.4 GiB)
[   11.428000] sd 1:0:2:0: [sdc] Write Protect is off
[   11.432000] sd 1:0:2:0: [sdc] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   11.472000]  sdc: sdc1
[   11.500000] sd 1:0:2:0: [sdc] Attached SCSI disk
done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
error sending message: Connection refused
udevadm[129]: error sending message: Connection refused

Begin: Running /scripts/local-premount ... done.
[   12.300000] EXT4-fs (sda3): mounting ext3 file system using the ext4 subsystem
[   12.320000] EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
Begin: Running /scripts/local-bottom ... done.
done.
Begin: Running /scripts/init-bottom ... done.
INIT: version 2.88 booting
Setting hostname to 'ion'...done.
udev requires hotplug support, not started. ... failed!
 failed!
Setting the system clock.
System Clock set to: Sun Feb 21 18:06:17 UTC 2016.
Activating swap:swapon on /dev/sda2
swapon: /dev/sda2: found swap signature: version 1, page-size 4, same byte order
swapon: /dev/sda2: pagesize=4096, swapsize=1028157440, devsize=1028160000
[   16.128000] Adding 1004056k swap on /dev/sda2.  Priority:-1 extents:1 across:1004056k FS
.
[   16.296000] EXT4-fs (sda3): re-mounted. Opts: (null)
Will now check root file system:fsck from util-linux-ng 2.17.2
[/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a -C0 /dev/sda3 
/dev/sda3: clean, 1959576/8814592 files, 10926496/17605231 blocks
.
[   16.616000] EXT4-fs (sda3): re-mounted. Opts: errors=remount-ro
Setting the system clock.
System Clock set to: Sun Feb 21 18:06:19 UTC 2016.
Cleaning up ifupdown....
Loading kernel module tg3.
WARNING: All config files need .conf: /etc/modprobe.d/arch, it will be ignored in a future release.
[   18.980000] pps_core: LinuxPPS API ver. 1 registered
[   18.980000] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[   19.092000] PTP clock support registered
[   19.384000] tg3.c:v3.137 (May 11, 2014)
[   20.904000] tg3 0000:20:02.0 eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:30:6e:4b:15:59
[   20.904000] tg3 0000:20:02.0 eth0: attached PHY is 5701 (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0])
[   20.912000] tg3 0000:20:02.0 eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[0]
[   20.912000] tg3 0000:20:02.0 eth0: dma_rwctrl[76ff2d0f] dma_mask[32-bit]
Will now activate lvm and md swap:done.
Will now check all file systems.
fsck from util-linux-ng 2.17.2
Checking all file systems.
[/sbin/fsck.ext2 (1) -- /boot] fsck.ext2 -a -C0 /dev/sda1 
/dev/sda1: clean, 55/64256 files, 153810/257008 blocks
Done checking file systems. A log is being saved in /var/log/fsck/checkfs if that location is writable..
Setting kernel variables ... /etc/sysctl.conf... /etc/sysctl.d/bindv6only.conf...done.
Will now mount local filesystems:[   21.568000] EXT4-fs (sda1): mounting ext2 file system using the ext4 subsystem
[   21.580000] EXT4-fs (sda1): mounted filesystem without journal. Opts: (null)
mount: /sys already mounted or /sys busy
mount: according to mtab, sysfs is already mounted on /sys
 failed!
Will now activate swapfile swap:done.
Cleaning up temporary files...Cleaning /tmp...done.
Cleaning /var/run...done.
Cleaning /var/lock...done.
.
Checking minimum space in /tmp...done.
Running 0dns-down to make sure resolv.conf is ok...done.
Setting up networking....
/etc/network/options still exists and it will be IGNORED! Read README.Debian of netbase. ... (warning).
Configuring network interfaces...Internet Systems Consortium DHCP Client 4.1.1-P1
Copyright 2004-2010 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

[   24.416000] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Listening on LPF/eth0/00:30:6e:4b:15:59
Sending on   LPF/eth0/00:30:6e:4b:15:59
Sending on   Socket/fallback
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From - Thu Nov 08 21:38:31 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: SCSI bug
Date: Sun, 21 Feb 2016 10:13:01 -0800
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On Sun, 2016-02-21 at 13:09 -0500, John David Anglin wrote:
> On 2016-02-20, at 10:47 PM, James Bottomley wrote:
> 
> > On Sat, 2016-02-20 at 21:52 -0500, John David Anglin wrote:
> > > On 2016-02-20, at 5:52 PM, John David Anglin wrote:
> > > 
> > > > On 2016-02-20, at 4:59 PM, Helge Deller wrote:
> > > > 
> > > > > On 20.02.2016 21:43, John David Anglin wrote:
> > > > > > On 2016-02-20, at 3:13 PM, John David Anglin wrote:
> > > > > > 
> > > > > > > On 2016-01-23, at 1:00 PM, John David Anglin wrote:
> > > > > > > 
> > > > > > > > WARNING: at block/blk-merge.c:454
> > > > > > > 
> > > > > > > With linux-image-4.4.0-1-parisc64-smp on c3740, the above
> > > > > > > warning is the last message I see.
> > > > > > > Kernel seems to hang at that point.  This is warning
> > > > > > > code:
> > > > > > > 
> > > > > > >     /*
> > > > > > >      * Something must have been wrong if the figured
> > > > > > > number
> > > > > > > of
> > > > > > >      * segment is bigger than number of req's physical
> > > > > > > segments
> > > > > > >      */
> > > > > > >     WARN_ON(nsegs > rq->nr_phys_segments);
> > > > > > 
> > > > > > On Sep. 12, 2015, I reported the following problem:
> > > > > > 
> > > > > > http://www.spinics.net/lists/linux-parisc/msg06327.html
> > > > > 
> > > > > The problem is still, that this bug can only be reproduced at
> > > > > every boot when then 
> > > > > scsi drivers are built as modules (and in an initrd). I could
> > > > > never reproduce it when
> > > > > I booted a kernel with built-in scsi drivers.
> > > > > 
> > > > > The bug seems to be triggered by(*nsegs)++ command in
> > > > > __blk_segment_map_sg() in block/blk-merge.c.
> > > > > I'm testing with the 4.4.2 kernel from debian.
> > > > > I modified __blk_segment_map_sg() like that:
> > > > > static inline void
> > > > > __blk_segment_map_sg(struct request_queue *q, struct bio_vec
> > > > > *bvec,
> > > > >                   struct scatterlist *sglist, struct bio_vec
> > > > > *bvprv,
> > > > >                   struct scatterlist **sg, int *nsegs, int
> > > > > *cluster)
> > > > > {
> > > > > 
> > > > >      int nbytes = bvec->bv_len;
> > > > > 
> > > > >      if (*sg && *cluster) {
> > > > >              if ((*sg)->length + nbytes >
> > > > > queue_max_segment_size(q))
> > > > >                      goto new_segment;
> > > > > 
> > > > >              if (!BIOVEC_PHYS_MERGEABLE(bvprv, bvec))
> > > > >                      goto new_segment;
> > > > >              if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bvec))
> > > > >                      goto new_segment;
> > > > > 
> > > > >              (*sg)->length += nbytes;
> > > > >      } else {
> > > > > new_segment:
> > > > >              if (*sg && *cluster) {
> > > > >                      printk("NEW SEGMENT sg = %p!!!\n", sg);
> > > > >                      printk("__blk_segment_map_sg: length =
> > > > > %d,
> > > > > nbytes = %d, sum = %d > %d\n", (*sg)->length, nbytes, (*sg)
> > > > > ->length + nbytes, queue_max_segment_size(q));
> > > > >                      printk("__blk_segment_map_sg:
> > > > > BIOVEC_PHYS_MERGEABLE = %d, BIOVEC_SEG_BOUNDARY = %d\n",
> > > > > BIOVEC_PHYS_MERGEABLE(bvprv, bvec), BIOVEC_SEG_BOUNDARY(q,
> > > > > bvprv,
> > > > > bvec) );
> > > > >              }
> > > > >              if (!*sg)
> > > > >                      *sg = sglist;
> > > > >              else {
> > > > >                      /*
> > > > >                       * If the driver previously mapped a
> > > > > shorter
> > > > >                       * list, we could see a termination bit
> > > > >                       * prematurely unless it fully inits the
> > > > > sg
> > > > >                       * table on each mapping. We KNOW that
> > > > > there
> > > > >                       * must be more entries here or the
> > > > > driver
> > > > >                       * would be buggy, so force clear the
> > > > >                       * termination bit to avoid doing a full
> > > > >                       * sg_init_table() in drivers for each
> > > > > command.
> > > > >                       */
> > > > >                      sg_unmark_end(*sg);
> > > > >                      *sg = sg_next(*sg);
> > > > >              }
> > > > > 
> > > > >              sg_set_page(*sg, bvec->bv_page, nbytes, bvec
> > > > > ->bv_offset);
> > > > >              (*nsegs)++;
> > > > >      }
> > > > >      *bvprv = *bvec;
> > > > > }
> > > > > 
> > > > > The boot log looks then like this:
> > > > > [   43.044000] scsi_init_sgtable: count = 1, nents = 1
> > > > > (there are lots of those before it!)
> > > > > [   43.164000] scsi_init_sgtable: nr_phys_segments = 1
> > > > > [   43.164000] scsi_init_sgtable: count = 1, nents = 1
> > > > > [   43.280000] scsi_init_sgtable: nr_phys_segments = 1
> > > > > [   43.280000] scsi_init_sgtable: count = 1, nents = 1
> > > > > [   43.396000] scsi_init_sgtable: nr_phys_segments = 1
> > > > > [   43.396000] scsi_init_sgtable: count = 1, nents = 1
> > > > > [   43.512000] scsi_init_sgtable: nr_phys_segments = 1
> > > > > [   43.512000] scsi_init_sgtable: count = 1, nents = 1
> > > > > [   43.628000] scsi_init_sgtable: nr_phys_segments = 3
> > > > > [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > > > [   43.628000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > > > [   43.628000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   43.628000] scsi_init_sgtable: count = 3, nents = 3
> > > > > [   44.224000] scsi_init_sgtable: nr_phys_segments = 1
> > > > > [   44.224000] scsi_init_sgtable: count = 1, nents = 1
> > > > > [   44.340000] scsi_init_sgtable: nr_phys_segments = 1
> > > > > [   44.340000] scsi_init_sgtable: count = 1, nents = 1
> > > > > [   44.456000] scsi_init_sgtable: nr_phys_segments = 7
> > > > > [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > > > [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > > > [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > > > [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > > > [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > > > [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > > > [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   44.456000] scsi_init_sgtable: count = 7, nents = 7
> > > > > [   44.456000] timer_interrupt(CPU 0): delayed! cycles
> > > > > 4527081F
> > > > > rem C6C21  next/now 14E153306E/14E146C44D
> > > > > [   46.116000] scsi_init_sgtable: nr_phys_segments = 7
> > > > > [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > > > [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > > > [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > > > [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > > > [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > > > [   46.116000] __blk_segment_map_sg: length = 8192, nbytes =
> > > > > 4096, sum = 12288 > 65536
> > > > > [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
> > > > > [   46.116000] __blk_segment_map_sg: length = 16384, nbytes =
> > > > > 4096, sum = 20480 > 65536
> > > > > [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   46.116000] scsi_init_sgtable: count = 7, nents = 7
> > > > > [   46.116000] timer_interrupt(CPU 0): delayed! cycles
> > > > > 453F0A77
> > > > > rem 223089  next/now 152BB6286E/152B93F7E5
> > > > > [   47.780000] scsi_init_sgtable: nr_phys_segments = 1
> > > > > [   47.780000] scsi_init_sgtable: count = 1, nents = 1
> > > > > [   47.896000] scsi_init_sgtable: nr_phys_segments = 6
> > > > > [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > > > [   47.896000] __blk_segment_map_sg: length = 61440, nbytes =
> > > > > 4096, sum = 65536 > 65536
> > > > > [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > > > [   47.896000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > > > [   47.896000] __blk_segment_map_sg: length = 4096, nbytes =
> > > > > 4096, sum = 8192 > 65536
> > > > > [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > > > [   47.896000] __blk_segment_map_sg: length = 8192, nbytes =
> > > > > 4096, sum = 12288 > 65536
> > > > > [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > > > [   47.896000] __blk_segment_map_sg: length = 8192, nbytes =
> > > > > 4096, sum = 12288 > 65536
> > > > > [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   47.896000] scsi_init_sgtable: count = 6, nents = 6
> > > > > [   47.896000] timer_interrupt(CPU 0): delayed! cycles
> > > > > 3AB087E2
> > > > > rem 23E4DE  next/now 1570BBD5EE/157097F110
> > > > > [   49.324000] scsi_init_sgtable: nr_phys_segments = 1
> > > > > [   49.324000] scsi_init_sgtable: count = 1, nents = 1
> > > > > [   49.440000] scsi_init_sgtable: nr_phys_segments = 2
> > > > > [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > > > [   49.440000] __blk_segment_map_sg: length = 65536, nbytes =
> > > > > 4096, sum = 69632 > 65536
> > > > > 
> > > > > (this is interesting! Here we reach a sum of > 65536 the
> > > > > first
> > > > > time)
> > > > > 
> > > > > [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 1,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
> > > > > [   49.440000] __blk_segment_map_sg: length = 16384, nbytes =
> > > > > 4096, sum = 20480 > 65536
> > > > > [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
> > > > > 0,
> > > > > BIOVEC_SEG_BOUNDARY = 1
> > > > > [   49.440000] *** FIXIT *** HELGE: nsegs > rq
> > > > > ->nr_phys_segments
> > > > > = 3 > 2
> > > > > [   49.440000] scsi_init_sgtable: count = 3, nents = 2
> > > > > [   50.116000] ------------[ cut here ]------------
> > > > > [   50.172000] WARNING: at /build/linux-4.4/linux
> > > > > -4.4.2/drivers/scsi/scsi_lib.c:1104
> > > > > 
> > > > > (this is usually a BUG(). I changed it to WARN() in the hope
> > > > > it
> > > > > would work anyway. It didn't.)
> > > > > 
> > > > > [   50.260000] Modules linked in: sd_mod sr_mod cdrom
> > > > > ata_generic
> > > > > ohci_pci ehci_pci ohci_hcd ehci_hcd pata_ns87415 sym53c8xx
> > > > > libata
> > > > > scsi_transport_spi scsi_mod usbcorep
> > > > > [   50.456000] CPU: 0 PID: 70 Comm: systemd-udevd Not tainted
> > > > > 4.4.0-1-parisc64-smp #5 Debian 4.4.2-2
> > > > > [   50.564000] task: 000000007f948b28 ti: 000000007fa90000
> > > > > task.ti: 000000007fa90000
> > > > > [   50.652000] 
> > > > > [   50.672000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > > > > [   50.728000] PSW: 00001000000001001111100100001110 Not
> > > > > tainted
> > > > > [   50.796000] r00-03  000000ff0804f90e 00000000409ea2e0
> > > > > 00000000003e2ee0 000000007fa91140
> > > > > [   50.892000] r04-07  00000000003cd000 000000007f914300
> > > > > 000000007f914b10 0000000000000003
> > > > > [   50.988000] r08-11  0000000000000000 000000007f918000
> > > > > 0000000040bdd6b0 00000000003cd800
> > > > > [   51.084000] r12-15  0000000000000000 000000007fa90778
> > > > > 00000000003cd000 000000007f918000
> > > > > [   51.180000] r16-19  0000000000001300 0000000040bdd6b8
> > > > > 0000000040bdd6bc 0000000040ba2420
> > > > > [   51.276000] r20-23  0000000099116e92 0000000000000000
> > > > > 00000000000002a0 00000000000002ee
> > > > > [   51.372000] r24-27  0000000000000000 000000000800000e
> > > > > 0000000040b60750 00000000409b3ae0
> > > > > [   51.468000] r28-31  0000000000000002 000000007fa914f0
> > > > > 000000007fa911e0 0000000040ba2408
> > > > > [   51.564000] sr00-03  0000000000015000 0000000000000000
> > > > > 0000000000000000 0000000000015000
> > > > > [   51.660000] sr04-07  0000000000000000 0000000000000000
> > > > > 0000000000000000 0000000000000000
> > > > > [   51.756000] 
> > > > > [   51.772000] IASQ: 0000000000000000 0000000000000000 IAOQ:
> > > > > 00000000003e2f24 00000000003e2f28
> > > > > [   51.872000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR:
> > > > > 000000fea4691528
> > > > > [   51.956000]  CPU:        0   CR30: 000000007fa90000 CR31:
> > > > > 00000000ffff7dff
> > > > > [   52.040000]  ORIG_R28: 0000000040b60718
> > > > > [   52.084000]  IAOQ[0]: scsi_init_sgtable+0xfc/0x1b8
> > > > > [scsi_mod]
> > > > > [   52.152000]  IAOQ[1]: scsi_init_sgtable+0x100/0x1b8
> > > > > [scsi_mod]
> > > > > [   52.224000]  RP(r2): scsi_init_sgtable+0xb8/0x1b8
> > > > > [scsi_mod]
> > > > > [   52.292000] Backtrace:
> > > > > [   52.320000]  [<00000000003e304c>] scsi_init_io+0x6c/0x258
> > > > > [scsi_mod]
> > > > > [   52.396000]  [<000000000087d078>]
> > > > > sd_init_command+0x70/0xec8
> > > > > [sd_mod]
> > > > > 
> > > > > In general I think the bug is somehow in blk-merge.c.
> > > > > But I'm not an expert in that code.
> > > > 
> > > > The warning was added in this patch sequence:
> > > > https://lkml.org/lkml/2015/11/23/996
> > > > 
> > > > Possibly, but above seems to indicate that it could be driver
> > > > issue
> > > > as well.
> > > 
> > > 
> > > I believe this bug was introduced by the following merge:
> > > 
> > > commit 1081230b748de8f03f37f80c53dfa89feda9b8de
> > > Merge: df91039 2ca495a
> > > Author: Linus Torvalds <torvalds@linux-foundation.org>
> > > Date:   Wed Sep 2 13:10:25 2015 -0700
> > > 
> > >    Merge branch 'for-4.3/core' of git://git.kernel.dk/linux-block
> > > 
> > >    Pull core block updates from Jens Axboe:
> > >     "This first core part of the block IO changes contains:
> > > 
> > >       - Cleanup of the bio IO error signaling from Christoph.  We
> > > used to
> > >         rely on the uptodate bit and passing around of an error,
> > > now
> > > we
> > >         store the error in the bio itself.
> > > 
> > >       - Improvement of the above from myself, by shrinking the
> > > bio
> > > size
> > >         down again to fit in two cachelines on x86-64.
> > > 
> > >       - Revert of the max_hw_sectors cap removal from a revision
> > > again,
> > >         from Jeff Moyer.  This caused performance regressions in
> > > various
> > >         tests.  Reinstate the limit, bump it to a more reasonable
> > > size
> > >         instead.
> > > 
> > >       - Make /sys/block/<dev>/queue/discard_max_bytes writeable,
> > > by
> > > me.
> > >         Most devices have huge trim limits, which can cause nasty
> > > latencies
> > >         when deleting files.  Enable the admin to configure the
> > > size
> > > down.
> > >         We will look into having a more sane default instead of
> > > UINT_MAX
> > >         sectors.
> > > 
> > >       - Improvement of the SGP gaps logic from Keith Busch.
> > > 
> > >       - Enable the block core to handle arbitrarily sized bios,
> > > which
> > >         enables a nice simplification of bio_add_page() (which is
> > > an
> > > IO hot
> > >         path).  From Kent.
> > > 
> > >       - Improvements to the partition io stats accounting, making
> > > it
> > >         faster.  From Ming Lei.
> > > 
> > >       - Also from Ming Lei, a basic fixup for overflow of the
> > > sysfs
> > > pending
> > >         file in blk-mq, as well as a fix for a blk-mq timeout
> > > race
> > >         condition.
> > > 
> > >       - Ming Lin has been carrying Kents above mentioned patches
> > > forward
> > >         for a while, and testing them.  Ming also did a few fixes
> > > around
> > >         that.
> > > 
> > >       - Sasha Levin found and fixed a use-after-free problem
> > > introduced by
> > >         the bio->bi_error changes from Christoph.
> > > 
> > >       - Small blk cgroup cleanup from Viresh Kumar"
> > > 
> > >    * 'for-4.3/core' of git://git.kernel.dk/linux-block: (26
> > > commits)
> > >      blk: Fix bio_io_vec index when checking bvec gaps
> > >      block: Replace SG_GAPS with new queue limits mask
> > >      block: bump BLK_DEF_MAX_SECTORS to 2560
> > >      Revert "block: remove artifical max_hw_sectors cap"
> > >      blk-mq: fix race between timeout and freeing request
> > >      blk-mq: fix buffer overflow when reading sysfs file of
> > > 'pending'
> > >      Documentation: update notes in biovecs about arbitrarily
> > > sized
> > > bios
> > >      block: remove bio_get_nr_vecs()
> > >      fs: use helper bio_add_page() instead of open coding on
> > > bi_io_vec
> > >      block: kill merge_bvec_fn() completely
> > >      md/raid5: get rid of bio_fits_rdev()
> > >      md/raid5: split bio for chunk_aligned_read
> > >      block: remove split code in
> > > blkdev_issue_{discard,write_same}
> > >      btrfs: remove bio splitting and merge_bvec_fn() calls
> > >      bcache: remove driver private bio splitting code
> > >      block: simplify bio_add_page()
> > >      block: make generic_make_request handle arbitrarily sized
> > > bios
> > >      blk-cgroup: Drop unlikely before IS_ERR(_OR_NULL)
> > >      block: don't access bio->bi_error after bio_put()
> > >      block: shrink struct bio down to 2 cache lines again
> > >      ...
> > 
> > If you can bisect it down to the exact commit, I might be able to
> > work
> > out what's the problem.  Otherwise, even in an all modular config,
> > I
> > can't reproduce this on 4.5-rc4, so it may be fixed upstream (just
> > not
> > backported).
> 
> 
> Okay, the bug was introduced by the following change:
> 
> commit 54efd50bfd873e2dbf784e0b21a8027ba4299a3e
> Author: Kent Overstreet <kent.overstreet@gmail.com>

If you've verified that reverting this alone gets you a bootable
kernel, it's time to report it to the appropriate lists, which would be
linux-block and linux-scsi.

James


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On 2016-02-21, at 1:13 PM, James Bottomley wrote:

> On Sun, 2016-02-21 at 13:09 -0500, John David Anglin wrote:
>> On 2016-02-20, at 10:47 PM, James Bottomley wrote:
>> 
>>> On Sat, 2016-02-20 at 21:52 -0500, John David Anglin wrote:
>>>> On 2016-02-20, at 5:52 PM, John David Anglin wrote:
>>>> 
>>>>> On 2016-02-20, at 4:59 PM, Helge Deller wrote:
>>>>> 
>>>>>> On 20.02.2016 21:43, John David Anglin wrote:
>>>>>>> On 2016-02-20, at 3:13 PM, John David Anglin wrote:
>>>>>>> 
>>>>>>>> On 2016-01-23, at 1:00 PM, John David Anglin wrote:
>>>>>>>> 
>>>>>>>>> WARNING: at block/blk-merge.c:454
>>>>>>>> 
>>>>>>>> With linux-image-4.4.0-1-parisc64-smp on c3740, the above
>>>>>>>> warning is the last message I see.
>>>>>>>> Kernel seems to hang at that point.  This is warning
>>>>>>>> code:
>>>>>>>> 
>>>>>>>>    /*
>>>>>>>>     * Something must have been wrong if the figured
>>>>>>>> number
>>>>>>>> of
>>>>>>>>     * segment is bigger than number of req's physical
>>>>>>>> segments
>>>>>>>>     */
>>>>>>>>    WARN_ON(nsegs > rq->nr_phys_segments);
>>>>>>> 
>>>>>>> On Sep. 12, 2015, I reported the following problem:
>>>>>>> 
>>>>>>> http://www.spinics.net/lists/linux-parisc/msg06327.html
>>>>>> 
>>>>>> The problem is still, that this bug can only be reproduced at
>>>>>> every boot when then 
>>>>>> scsi drivers are built as modules (and in an initrd). I could
>>>>>> never reproduce it when
>>>>>> I booted a kernel with built-in scsi drivers.
>>>>>> 
>>>>>> The bug seems to be triggered by(*nsegs)++ command in
>>>>>> __blk_segment_map_sg() in block/blk-merge.c.
>>>>>> I'm testing with the 4.4.2 kernel from debian.
>>>>>> I modified __blk_segment_map_sg() like that:
>>>>>> static inline void
>>>>>> __blk_segment_map_sg(struct request_queue *q, struct bio_vec
>>>>>> *bvec,
>>>>>>                  struct scatterlist *sglist, struct bio_vec
>>>>>> *bvprv,
>>>>>>                  struct scatterlist **sg, int *nsegs, int
>>>>>> *cluster)
>>>>>> {
>>>>>> 
>>>>>>     int nbytes = bvec->bv_len;
>>>>>> 
>>>>>>     if (*sg && *cluster) {
>>>>>>             if ((*sg)->length + nbytes >
>>>>>> queue_max_segment_size(q))
>>>>>>                     goto new_segment;
>>>>>> 
>>>>>>             if (!BIOVEC_PHYS_MERGEABLE(bvprv, bvec))
>>>>>>                     goto new_segment;
>>>>>>             if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bvec))
>>>>>>                     goto new_segment;
>>>>>> 
>>>>>>             (*sg)->length += nbytes;
>>>>>>     } else {
>>>>>> new_segment:
>>>>>>             if (*sg && *cluster) {
>>>>>>                     printk("NEW SEGMENT sg = %p!!!\n", sg);
>>>>>>                     printk("__blk_segment_map_sg: length =
>>>>>> %d,
>>>>>> nbytes = %d, sum = %d > %d\n", (*sg)->length, nbytes, (*sg)
>>>>>> ->length + nbytes, queue_max_segment_size(q));
>>>>>>                     printk("__blk_segment_map_sg:
>>>>>> BIOVEC_PHYS_MERGEABLE = %d, BIOVEC_SEG_BOUNDARY = %d\n",
>>>>>> BIOVEC_PHYS_MERGEABLE(bvprv, bvec), BIOVEC_SEG_BOUNDARY(q,
>>>>>> bvprv,
>>>>>> bvec) );
>>>>>>             }
>>>>>>             if (!*sg)
>>>>>>                     *sg = sglist;
>>>>>>             else {
>>>>>>                     /*
>>>>>>                      * If the driver previously mapped a
>>>>>> shorter
>>>>>>                      * list, we could see a termination bit
>>>>>>                      * prematurely unless it fully inits the
>>>>>> sg
>>>>>>                      * table on each mapping. We KNOW that
>>>>>> there
>>>>>>                      * must be more entries here or the
>>>>>> driver
>>>>>>                      * would be buggy, so force clear the
>>>>>>                      * termination bit to avoid doing a full
>>>>>>                      * sg_init_table() in drivers for each
>>>>>> command.
>>>>>>                      */
>>>>>>                     sg_unmark_end(*sg);
>>>>>>                     *sg = sg_next(*sg);
>>>>>>             }
>>>>>> 
>>>>>>             sg_set_page(*sg, bvec->bv_page, nbytes, bvec
>>>>>> ->bv_offset);
>>>>>>             (*nsegs)++;
>>>>>>     }
>>>>>>     *bvprv = *bvec;
>>>>>> }
>>>>>> 
>>>>>> The boot log looks then like this:
>>>>>> [   43.044000] scsi_init_sgtable: count = 1, nents = 1
>>>>>> (there are lots of those before it!)
>>>>>> [   43.164000] scsi_init_sgtable: nr_phys_segments = 1
>>>>>> [   43.164000] scsi_init_sgtable: count = 1, nents = 1
>>>>>> [   43.280000] scsi_init_sgtable: nr_phys_segments = 1
>>>>>> [   43.280000] scsi_init_sgtable: count = 1, nents = 1
>>>>>> [   43.396000] scsi_init_sgtable: nr_phys_segments = 1
>>>>>> [   43.396000] scsi_init_sgtable: count = 1, nents = 1
>>>>>> [   43.512000] scsi_init_sgtable: nr_phys_segments = 1
>>>>>> [   43.512000] scsi_init_sgtable: count = 1, nents = 1
>>>>>> [   43.628000] scsi_init_sgtable: nr_phys_segments = 3
>>>>>> [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>>>> [   43.628000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   43.628000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>>>> [   43.628000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   43.628000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   43.628000] scsi_init_sgtable: count = 3, nents = 3
>>>>>> [   44.224000] scsi_init_sgtable: nr_phys_segments = 1
>>>>>> [   44.224000] scsi_init_sgtable: count = 1, nents = 1
>>>>>> [   44.340000] scsi_init_sgtable: nr_phys_segments = 1
>>>>>> [   44.340000] scsi_init_sgtable: count = 1, nents = 1
>>>>>> [   44.456000] scsi_init_sgtable: nr_phys_segments = 7
>>>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   44.456000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>>>> [   44.456000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   44.456000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   44.456000] scsi_init_sgtable: count = 7, nents = 7
>>>>>> [   44.456000] timer_interrupt(CPU 0): delayed! cycles
>>>>>> 4527081F
>>>>>> rem C6C21  next/now 14E153306E/14E146C44D
>>>>>> [   46.116000] scsi_init_sgtable: nr_phys_segments = 7
>>>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>>>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>>>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>>>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>>>> [   46.116000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>>>> [   46.116000] __blk_segment_map_sg: length = 8192, nbytes =
>>>>>> 4096, sum = 12288 > 65536
>>>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   46.116000] NEW SEGMENT sg = 00000000bfca0f98!!!
>>>>>> [   46.116000] __blk_segment_map_sg: length = 16384, nbytes =
>>>>>> 4096, sum = 20480 > 65536
>>>>>> [   46.116000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   46.116000] scsi_init_sgtable: count = 7, nents = 7
>>>>>> [   46.116000] timer_interrupt(CPU 0): delayed! cycles
>>>>>> 453F0A77
>>>>>> rem 223089  next/now 152BB6286E/152B93F7E5
>>>>>> [   47.780000] scsi_init_sgtable: nr_phys_segments = 1
>>>>>> [   47.780000] scsi_init_sgtable: count = 1, nents = 1
>>>>>> [   47.896000] scsi_init_sgtable: nr_phys_segments = 6
>>>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>>>> [   47.896000] __blk_segment_map_sg: length = 61440, nbytes =
>>>>>> 4096, sum = 65536 > 65536
>>>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>>>> [   47.896000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>>>> [   47.896000] __blk_segment_map_sg: length = 4096, nbytes =
>>>>>> 4096, sum = 8192 > 65536
>>>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>>>> [   47.896000] __blk_segment_map_sg: length = 8192, nbytes =
>>>>>> 4096, sum = 12288 > 65536
>>>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   47.896000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>>>> [   47.896000] __blk_segment_map_sg: length = 8192, nbytes =
>>>>>> 4096, sum = 12288 > 65536
>>>>>> [   47.896000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   47.896000] scsi_init_sgtable: count = 6, nents = 6
>>>>>> [   47.896000] timer_interrupt(CPU 0): delayed! cycles
>>>>>> 3AB087E2
>>>>>> rem 23E4DE  next/now 1570BBD5EE/157097F110
>>>>>> [   49.324000] scsi_init_sgtable: nr_phys_segments = 1
>>>>>> [   49.324000] scsi_init_sgtable: count = 1, nents = 1
>>>>>> [   49.440000] scsi_init_sgtable: nr_phys_segments = 2
>>>>>> [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>>>> [   49.440000] __blk_segment_map_sg: length = 65536, nbytes =
>>>>>> 4096, sum = 69632 > 65536
>>>>>> 
>>>>>> (this is interesting! Here we reach a sum of > 65536 the
>>>>>> first
>>>>>> time)
>>>>>> 
>>>>>> [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 1,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   49.440000] NEW SEGMENT sg = 000000007fa911e8!!!
>>>>>> [   49.440000] __blk_segment_map_sg: length = 16384, nbytes =
>>>>>> 4096, sum = 20480 > 65536
>>>>>> [   49.440000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE =
>>>>>> 0,
>>>>>> BIOVEC_SEG_BOUNDARY = 1
>>>>>> [   49.440000] *** FIXIT *** HELGE: nsegs > rq
>>>>>> ->nr_phys_segments
>>>>>> = 3 > 2
>>>>>> [   49.440000] scsi_init_sgtable: count = 3, nents = 2
>>>>>> [   50.116000] ------------[ cut here ]------------
>>>>>> [   50.172000] WARNING: at /build/linux-4.4/linux
>>>>>> -4.4.2/drivers/scsi/scsi_lib.c:1104
>>>>>> 
>>>>>> (this is usually a BUG(). I changed it to WARN() in the hope
>>>>>> it
>>>>>> would work anyway. It didn't.)
>>>>>> 
>>>>>> [   50.260000] Modules linked in: sd_mod sr_mod cdrom
>>>>>> ata_generic
>>>>>> ohci_pci ehci_pci ohci_hcd ehci_hcd pata_ns87415 sym53c8xx
>>>>>> libata
>>>>>> scsi_transport_spi scsi_mod usbcorep
>>>>>> [   50.456000] CPU: 0 PID: 70 Comm: systemd-udevd Not tainted
>>>>>> 4.4.0-1-parisc64-smp #5 Debian 4.4.2-2
>>>>>> [   50.564000] task: 000000007f948b28 ti: 000000007fa90000
>>>>>> task.ti: 000000007fa90000
>>>>>> [   50.652000] 
>>>>>> [   50.672000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>>>>>> [   50.728000] PSW: 00001000000001001111100100001110 Not
>>>>>> tainted
>>>>>> [   50.796000] r00-03  000000ff0804f90e 00000000409ea2e0
>>>>>> 00000000003e2ee0 000000007fa91140
>>>>>> [   50.892000] r04-07  00000000003cd000 000000007f914300
>>>>>> 000000007f914b10 0000000000000003
>>>>>> [   50.988000] r08-11  0000000000000000 000000007f918000
>>>>>> 0000000040bdd6b0 00000000003cd800
>>>>>> [   51.084000] r12-15  0000000000000000 000000007fa90778
>>>>>> 00000000003cd000 000000007f918000
>>>>>> [   51.180000] r16-19  0000000000001300 0000000040bdd6b8
>>>>>> 0000000040bdd6bc 0000000040ba2420
>>>>>> [   51.276000] r20-23  0000000099116e92 0000000000000000
>>>>>> 00000000000002a0 00000000000002ee
>>>>>> [   51.372000] r24-27  0000000000000000 000000000800000e
>>>>>> 0000000040b60750 00000000409b3ae0
>>>>>> [   51.468000] r28-31  0000000000000002 000000007fa914f0
>>>>>> 000000007fa911e0 0000000040ba2408
>>>>>> [   51.564000] sr00-03  0000000000015000 0000000000000000
>>>>>> 0000000000000000 0000000000015000
>>>>>> [   51.660000] sr04-07  0000000000000000 0000000000000000
>>>>>> 0000000000000000 0000000000000000
>>>>>> [   51.756000] 
>>>>>> [   51.772000] IASQ: 0000000000000000 0000000000000000 IAOQ:
>>>>>> 00000000003e2f24 00000000003e2f28
>>>>>> [   51.872000]  IIR: 03ffe01f    ISR: 0000000010340000  IOR:
>>>>>> 000000fea4691528
>>>>>> [   51.956000]  CPU:        0   CR30: 000000007fa90000 CR31:
>>>>>> 00000000ffff7dff
>>>>>> [   52.040000]  ORIG_R28: 0000000040b60718
>>>>>> [   52.084000]  IAOQ[0]: scsi_init_sgtable+0xfc/0x1b8
>>>>>> [scsi_mod]
>>>>>> [   52.152000]  IAOQ[1]: scsi_init_sgtable+0x100/0x1b8
>>>>>> [scsi_mod]
>>>>>> [   52.224000]  RP(r2): scsi_init_sgtable+0xb8/0x1b8
>>>>>> [scsi_mod]
>>>>>> [   52.292000] Backtrace:
>>>>>> [   52.320000]  [<00000000003e304c>] scsi_init_io+0x6c/0x258
>>>>>> [scsi_mod]
>>>>>> [   52.396000]  [<000000000087d078>]
>>>>>> sd_init_command+0x70/0xec8
>>>>>> [sd_mod]
>>>>>> 
>>>>>> In general I think the bug is somehow in blk-merge.c.
>>>>>> But I'm not an expert in that code.
>>>>> 
>>>>> The warning was added in this patch sequence:
>>>>> https://lkml.org/lkml/2015/11/23/996
>>>>> 
>>>>> Possibly, but above seems to indicate that it could be driver
>>>>> issue
>>>>> as well.
>>>> 
>>>> 
>>>> I believe this bug was introduced by the following merge:
>>>> 
>>>> commit 1081230b748de8f03f37f80c53dfa89feda9b8de
>>>> Merge: df91039 2ca495a
>>>> Author: Linus Torvalds <torvalds@linux-foundation.org>
>>>> Date:   Wed Sep 2 13:10:25 2015 -0700
>>>> 
>>>>   Merge branch 'for-4.3/core' of git://git.kernel.dk/linux-block
>>>> 
>>>>   Pull core block updates from Jens Axboe:
>>>>    "This first core part of the block IO changes contains:
>>>> 
>>>>      - Cleanup of the bio IO error signaling from Christoph.  We
>>>> used to
>>>>        rely on the uptodate bit and passing around of an error,
>>>> now
>>>> we
>>>>        store the error in the bio itself.
>>>> 
>>>>      - Improvement of the above from myself, by shrinking the
>>>> bio
>>>> size
>>>>        down again to fit in two cachelines on x86-64.
>>>> 
>>>>      - Revert of the max_hw_sectors cap removal from a revision
>>>> again,
>>>>        from Jeff Moyer.  This caused performance regressions in
>>>> various
>>>>        tests.  Reinstate the limit, bump it to a more reasonable
>>>> size
>>>>        instead.
>>>> 
>>>>      - Make /sys/block/<dev>/queue/discard_max_bytes writeable,
>>>> by
>>>> me.
>>>>        Most devices have huge trim limits, which can cause nasty
>>>> latencies
>>>>        when deleting files.  Enable the admin to configure the
>>>> size
>>>> down.
>>>>        We will look into having a more sane default instead of
>>>> UINT_MAX
>>>>        sectors.
>>>> 
>>>>      - Improvement of the SGP gaps logic from Keith Busch.
>>>> 
>>>>      - Enable the block core to handle arbitrarily sized bios,
>>>> which
>>>>        enables a nice simplification of bio_add_page() (which is
>>>> an
>>>> IO hot
>>>>        path).  From Kent.
>>>> 
>>>>      - Improvements to the partition io stats accounting, making
>>>> it
>>>>        faster.  From Ming Lei.
>>>> 
>>>>      - Also from Ming Lei, a basic fixup for overflow of the
>>>> sysfs
>>>> pending
>>>>        file in blk-mq, as well as a fix for a blk-mq timeout
>>>> race
>>>>        condition.
>>>> 
>>>>      - Ming Lin has been carrying Kents above mentioned patches
>>>> forward
>>>>        for a while, and testing them.  Ming also did a few fixes
>>>> around
>>>>        that.
>>>> 
>>>>      - Sasha Levin found and fixed a use-after-free problem
>>>> introduced by
>>>>        the bio->bi_error changes from Christoph.
>>>> 
>>>>      - Small blk cgroup cleanup from Viresh Kumar"
>>>> 
>>>>   * 'for-4.3/core' of git://git.kernel.dk/linux-block: (26
>>>> commits)
>>>>     blk: Fix bio_io_vec index when checking bvec gaps
>>>>     block: Replace SG_GAPS with new queue limits mask
>>>>     block: bump BLK_DEF_MAX_SECTORS to 2560
>>>>     Revert "block: remove artifical max_hw_sectors cap"
>>>>     blk-mq: fix race between timeout and freeing request
>>>>     blk-mq: fix buffer overflow when reading sysfs file of
>>>> 'pending'
>>>>     Documentation: update notes in biovecs about arbitrarily
>>>> sized
>>>> bios
>>>>     block: remove bio_get_nr_vecs()
>>>>     fs: use helper bio_add_page() instead of open coding on
>>>> bi_io_vec
>>>>     block: kill merge_bvec_fn() completely
>>>>     md/raid5: get rid of bio_fits_rdev()
>>>>     md/raid5: split bio for chunk_aligned_read
>>>>     block: remove split code in
>>>> blkdev_issue_{discard,write_same}
>>>>     btrfs: remove bio splitting and merge_bvec_fn() calls
>>>>     bcache: remove driver private bio splitting code
>>>>     block: simplify bio_add_page()
>>>>     block: make generic_make_request handle arbitrarily sized
>>>> bios
>>>>     blk-cgroup: Drop unlikely before IS_ERR(_OR_NULL)
>>>>     block: don't access bio->bi_error after bio_put()
>>>>     block: shrink struct bio down to 2 cache lines again
>>>>     ...
>>> 
>>> If you can bisect it down to the exact commit, I might be able to
>>> work
>>> out what's the problem.  Otherwise, even in an all modular config,
>>> I
>>> can't reproduce this on 4.5-rc4, so it may be fixed upstream (just
>>> not
>>> backported).
>> 
>> 
>> Okay, the bug was introduced by the following change:
>> 
>> commit 54efd50bfd873e2dbf784e0b21a8027ba4299a3e
>> Author: Kent Overstreet <kent.overstreet@gmail.com>
> 
> If you've verified that reverting this alone gets you a bootable
> kernel, it's time to report it to the appropriate lists, which would be
> linux-block and linux-scsi.


I verified that commit 54efd50bfd873e2dbf784e0b21a8027ba4299a3e in linux-block fails to
boot and commit 41609892701e26724b8617201f43254cadf2e7ae (blk-cgroup: Drop unlikely
before IS_ERR(_OR_NULL)) does boot successfully.  Commit 41609892701e26724b8617201f43254cadf2e7ae
is previous commit in tree.

I don't believe that the change can be reverted from Linus' tree as this commit allowed other
stuff to be removed (see second paragraph of commit description).

Dave
--
John David Anglin	dave.anglin@bell.net



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On Sun, 2016-02-21 at 13:43 -0500, John David Anglin wrote:
> I verified that commit 54efd50bfd873e2dbf784e0b21a8027ba4299a3e in
> linux-block fails to
> boot and commit 41609892701e26724b8617201f43254cadf2e7ae (blk-cgroup:
> Drop unlikely
> before IS_ERR(_OR_NULL)) does boot successfully.  Commit
> 41609892701e26724b8617201f43254cadf2e7ae
> is previous commit in tree.
> 
> I don't believe that the change can be reverted from Linus' tree as
> this commit allowed other
> stuff to be removed (see second paragraph of commit description).

OK, can you just verify you can boot 4.5-rc5 without the sata_sil24
driver?

My theory, based on what Helge produced is that this commit is building
a large transfer list > 65535 and then splitting it wrongly.  I think
the problem is that it's not respecting the DMA boundary, so Helge sees
a transfer size of 69632 which I think slops over on both sides,
requiring 3 segments to describe.  However, the merge code thinks we
only need two (because the length is < 2*65536).  The reason we only
see this with ATA drivers is because virtually no SCSI drivers set the
DMA boundary.  Most ATA drivers require a dma boundary of 65535.

James

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On 21.02.2016 20:07, James Bottomley wrote:
> On Sun, 2016-02-21 at 13:43 -0500, John David Anglin wrote:
>> I verified that commit 54efd50bfd873e2dbf784e0b21a8027ba4299a3e in
>> linux-block fails to
>> boot and commit 41609892701e26724b8617201f43254cadf2e7ae (blk-cgroup:
>> Drop unlikely
>> before IS_ERR(_OR_NULL)) does boot successfully.  Commit
>> 41609892701e26724b8617201f43254cadf2e7ae
>> is previous commit in tree.
>>
>> I don't believe that the change can be reverted from Linus' tree as
>> this commit allowed other
>> stuff to be removed (see second paragraph of commit description).
> 
> OK, can you just verify you can boot 4.5-rc5 without the sata_sil24
> driver?

I tried it on my c3000, debian kernel 4.4.2, in this case without the pata_ns87415.
I used "modprobe.blacklist=libata,pata_ns87415,ata_generic" as additional 
kernel command line option. 

[   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
[   45.980000] __blk_segment_map_sg: length = 12288, nbytes = 4096, sum = 16384 > 65536
[   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
[   45.980000] __blk_segment_map_sg: length = 65536, nbytes = 4096, sum = 69632 > 65536

^^ here.

[   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 1, BIOVEC_SEG_BOUNDARY = 1
[   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
[   45.980000] __blk_segment_map_sg: length = 12288, nbytes = 4096, sum = 16384 > 65536
[   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
[   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
[   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
[   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
[   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
[   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
[   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
[   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   45.980000] *** FIXIT *** HELGE: nsegs > rq->nr_phys_segments = 11 > 10
[   45.980000] scsi_init_sgtable: count = 11, nents = 10

^^ here

[   45.980000] timer_interrupt(CPU 0): delayed! cycles 73C0F821 rem 1E1DDF  next/now 1D78B3071C/1D7894E93D
[   48.684000] ------------[ cut here ]------------
[   48.740000] WARNING: at /build/linux-4.4/linux-4.4.2/drivers/scsi/scsi_lib.c:1104
[   48.828000] Modules linked in: sd_mod ohci_pci ehci_pci ohci_hcd ehci_hcd sym53c8xx scsi_transport_spi usbcore scsi_mod usb_common tulip
[   48.976000] CPU: 0 PID: 66 Comm: systemd-udevd Not tainted 4.4.0-1-parisc64-smp #5 Debian 4.4.2-2
[   49.084000] task: 00000000bbe97538 ti: 00000000bbe98000 task.ti: 00000000bbe98000

 
> My theory, based on what Helge produced is that this commit is building
> a large transfer list > 65535 and then splitting it wrongly.  

Yes, this theory sounds right.

> I think
> the problem is that it's not respecting the DMA boundary, so Helge sees
> a transfer size of 69632 which I think slops over on both sides,
> requiring 3 segments to describe.  However, the merge code thinks we
> only need two (because the length is < 2*65536).  The reason we only
> see this with ATA drivers is because virtually no SCSI drivers set the
> DMA boundary.  Most ATA drivers require a dma boundary of 65535.

In my test above there is no ATA driver included, only SCSI discs.

Helge
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From - Thu Nov 08 21:38:31 2018
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: SCSI bug
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On Sun, 2016-02-21 at 20:36 +0100, Helge Deller wrote:
> On 21.02.2016 20:07, James Bottomley wrote:
> > On Sun, 2016-02-21 at 13:43 -0500, John David Anglin wrote:
> > > I verified that commit 54efd50bfd873e2dbf784e0b21a8027ba4299a3e
> > > in
> > > linux-block fails to
> > > boot and commit 41609892701e26724b8617201f43254cadf2e7ae (blk
> > > -cgroup:
> > > Drop unlikely
> > > before IS_ERR(_OR_NULL)) does boot successfully.  Commit
> > > 41609892701e26724b8617201f43254cadf2e7ae
> > > is previous commit in tree.
> > > 
> > > I don't believe that the change can be reverted from Linus' tree
> > > as
> > > this commit allowed other
> > > stuff to be removed (see second paragraph of commit description).
> > 
> > OK, can you just verify you can boot 4.5-rc5 without the sata_sil24
> > driver?
> 
> I tried it on my c3000, debian kernel 4.4.2, in this case without the
> pata_ns87415.
> I used "modprobe.blacklist=libata,pata_ns87415,ata_generic" as
> additional 
> kernel command line option. 
> 
> [   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
> [   45.980000] __blk_segment_map_sg: length = 12288, nbytes = 4096,
> sum = 16384 > 65536
> [   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> BIOVEC_SEG_BOUNDARY = 1
> [   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
> [   45.980000] __blk_segment_map_sg: length = 65536, nbytes = 4096,
> sum = 69632 > 65536
> 
> ^^ here.
> 
> [   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 1,
> BIOVEC_SEG_BOUNDARY = 1
> [   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
> [   45.980000] __blk_segment_map_sg: length = 12288, nbytes = 4096,
> sum = 16384 > 65536
> [   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> BIOVEC_SEG_BOUNDARY = 1
> [   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
> [   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096,
> sum = 8192 > 65536
> [   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> BIOVEC_SEG_BOUNDARY = 1
> [   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
> [   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096,
> sum = 8192 > 65536
> [   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> BIOVEC_SEG_BOUNDARY = 1
> [   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
> [   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096,
> sum = 8192 > 65536
> [   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> BIOVEC_SEG_BOUNDARY = 1
> [   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
> [   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096,
> sum = 8192 > 65536
> [   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> BIOVEC_SEG_BOUNDARY = 1
> [   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
> [   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096,
> sum = 8192 > 65536
> [   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> BIOVEC_SEG_BOUNDARY = 1
> [   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
> [   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096,
> sum = 8192 > 65536
> [   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> BIOVEC_SEG_BOUNDARY = 1
> [   45.980000] NEW SEGMENT sg = 00000000bbe991e8!!!
> [   45.980000] __blk_segment_map_sg: length = 4096, nbytes = 4096,
> sum = 8192 > 65536
> [   45.980000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0,
> BIOVEC_SEG_BOUNDARY = 1
> [   45.980000] *** FIXIT *** HELGE: nsegs > rq->nr_phys_segments = 11
> > 10
> [   45.980000] scsi_init_sgtable: count = 11, nents = 10
> 
> ^^ here
> 
> [   45.980000] timer_interrupt(CPU 0): delayed! cycles 73C0F821 rem
> 1E1DDF  next/now 1D78B3071C/1D7894E93D
> [   48.684000] ------------[ cut here ]------------
> [   48.740000] WARNING: at /build/linux-4.4/linux
> -4.4.2/drivers/scsi/scsi_lib.c:1104
> [   48.828000] Modules linked in: sd_mod ohci_pci ehci_pci ohci_hcd
> ehci_hcd sym53c8xx scsi_transport_spi usbcore scsi_mod usb_common
> tulip
> [   48.976000] CPU: 0 PID: 66 Comm: systemd-udevd Not tainted 4.4.0-1
> -parisc64-smp #5 Debian 4.4.2-2
> [   49.084000] task: 00000000bbe97538 ti: 00000000bbe98000 task.ti:
> 00000000bbe98000
> 
>  
> > My theory, based on what Helge produced is that this commit is
> > building
> > a large transfer list > 65535 and then splitting it wrongly.  
> 
> Yes, this theory sounds right.
> 
> > I think
> > the problem is that it's not respecting the DMA boundary, so Helge
> > sees
> > a transfer size of 69632 which I think slops over on both sides,
> > requiring 3 segments to describe.  However, the merge code thinks
> > we
> > only need two (because the length is < 2*65536).  The reason we
> > only
> > see this with ATA drivers is because virtually no SCSI drivers set
> > the
> > DMA boundary.  Most ATA drivers require a dma boundary of 65535.
> 
> In my test above there is no ATA driver included, only SCSI discs.

Heh, well, it's a combination of problems.  Apparently in parisc we
don't set the max segment size, so we inherit 64k even in SCSI drivers.

That said, I still can't reproduce this, so you're going to have to
help me find it.  Current theory is ll_merge_request_fn() it looks like
there's scope for miscalculation in there.  Can you instrument this
line

	/* Merge is OK... */
	req->nr_phys_segments = total_phys_segments;

To add just before the return

if (req->nr_phys_segments != __blk_recalc_rq_segments(rq->q, rq->bio,	false) 
	printk("MISMATCH IN MERGE: got %d, should get %d\n", 
		req->nr_phys_segments,
		__blk_recalc_rq_segments(rq->q, rq->bio, false));

Thanks,

James

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On 2016-02-21, at 2:36 PM, Helge Deller wrote:

> On 21.02.2016 20:07, James Bottomley wrote:
>> On Sun, 2016-02-21 at 13:43 -0500, John David Anglin wrote:
>>> I verified that commit 54efd50bfd873e2dbf784e0b21a8027ba4299a3e in
>>> linux-block fails to
>>> boot and commit 41609892701e26724b8617201f43254cadf2e7ae (blk-cgroup:
>>> Drop unlikely
>>> before IS_ERR(_OR_NULL)) does boot successfully.  Commit
>>> 41609892701e26724b8617201f43254cadf2e7ae
>>> is previous commit in tree.
>>> 
>>> I don't believe that the change can be reverted from Linus' tree as
>>> this commit allowed other
>>> stuff to be removed (see second paragraph of commit description).
>> 
>> OK, can you just verify you can boot 4.5-rc5 without the sata_sil24
>> driver?
> 
> I tried it on my c3000, debian kernel 4.4.2, in this case without the pata_ns87415.

Removing the sata_sil24 driver didn't help.  Problem still occurs with just scsi drivers.  All
remaining ata drivers were builtin.

Dave
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On 2016-02-21, at 3:28 PM, James Bottomley wrote:

> That said, I still can't reproduce this, so you're going to have to
> help me find it.  Current theory is ll_merge_request_fn() it looks like
> there's scope for miscalculation in there.  Can you instrument this
> line
> 
> 	/* Merge is OK... */
> 	req->nr_phys_segments = total_phys_segments;
> 
> To add just before the return
> 
> if (req->nr_phys_segments != __blk_recalc_rq_segments(rq->q, rq->bio,	false) 
> 	printk("MISMATCH IN MERGE: got %d, should get %d\n", 
> 		req->nr_phys_segments,
> 		__blk_recalc_rq_segments(rq->q, rq->bio, false));

This didn't trigger.  There were some typos:

diff --git a/block/blk-merge.c b/block/blk-merge.c
index d9c3a75..e8969ef 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -545,6 +545,12 @@ static int ll_merge_requests_fn(struct request_queue *q, struct request *req,
 
        /* Merge is OK... */
        req->nr_phys_segments = total_phys_segments;
+
+if (req->nr_phys_segments != __blk_recalc_rq_segments(req->q, req->bio,        false)) 
+       printk("MISMATCH IN MERGE: got %d, should get %d\n", 
+               req->nr_phys_segments,
+               __blk_recalc_rq_segments(req->q, req->bio, false));
+
        return 1;
 }
 

Any more ideas?

Dave
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: SCSI bug
Date: Sun, 21 Feb 2016 22:17:54 +0100
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On 21.02.2016 22:09, John David Anglin wrote:
> On 2016-02-21, at 3:28 PM, James Bottomley wrote:
> 
>> That said, I still can't reproduce this, so you're going to have to
>> help me find it.  Current theory is ll_merge_request_fn() it looks like
>> there's scope for miscalculation in there.  Can you instrument this
>> line
>>
>> 	/* Merge is OK... */
>> 	req->nr_phys_segments = total_phys_segments;
>>
>> To add just before the return
>>
>> if (req->nr_phys_segments != __blk_recalc_rq_segments(rq->q, rq->bio,	false) 
>> 	printk("MISMATCH IN MERGE: got %d, should get %d\n", 
>> 		req->nr_phys_segments,
>> 		__blk_recalc_rq_segments(rq->q, rq->bio, false));
> 
> This didn't trigger.  There were some typos:

It didn't trigger for me either.

 
> diff --git a/block/blk-merge.c b/block/blk-merge.c
> index d9c3a75..e8969ef 100644
> --- a/block/blk-merge.c
> +++ b/block/blk-merge.c
> @@ -545,6 +545,12 @@ static int ll_merge_requests_fn(struct request_queue *q, struct request *req,
>  
>         /* Merge is OK... */
>         req->nr_phys_segments = total_phys_segments;
> +
> +if (req->nr_phys_segments != __blk_recalc_rq_segments(req->q, req->bio,        false)) 
> +       printk("MISMATCH IN MERGE: got %d, should get %d\n", 
> +               req->nr_phys_segments,
> +               __blk_recalc_rq_segments(req->q, req->bio, false));
> +
>         return 1;
>  }

Interestingly it now triggered somewhere else...
I enabled CONFIG_DEBUG_SG, which I had enabled the last few times as well, but it now happened
for the first time:

[   49.848000] scsi_init_sgtable: nr_phys_segments = 4
[   49.848000] NEW SEGMENT sg = 00000000bbdd5008!!!
[   49.848000] __blk_segment_map_sg: length = 65536, nbytes = 4096, sum = 69632 > 65536
[   49.848000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 1, BIOVEC_SEG_BOUNDARY = 1
[   49.848000] NEW SEGMENT sg = 00000000bbdd5008!!!
[   49.848000] __blk_segment_map_sg: length = 8192, nbytes = 4096, sum = 12288 > 65536
[   49.848000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   49.848000] NEW SEGMENT sg = 00000000bbdd5008!!!
[   49.848000] __blk_segment_map_sg: length = 20480, nbytes = 4096, sum = 24576 > 65536
[   49.848000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   49.848000] NEW SEGMENT sg = 00000000bbdd5008!!!
[   49.848000] __blk_segment_map_sg: length = 4096, nbytes = 4096, sum = 8192 > 65536
[   49.848000] __blk_segment_map_sg: BIOVEC_PHYS_MERGEABLE = 0, BIOVEC_SEG_BOUNDARY = 1
[   49.848000] timer_interrupt(CPU 0): delayed! cycles 2D6DC985 rem 2B2FBB  next/now 19218A269E/19215EF6E3
[   50.980000] ------------[ cut here ]------------
[   51.036000] kernel BUG at /build/linux-4.4/linux-4.4.2/include/linux/scatterlist.h:92!
[   51.128000] CPU: 0 PID: 62 Comm: systemd-udevd Not tainted 4.4.0-1-parisc64-smp #6 Debian 4.4.2-2
[   51.236000] task: 00000000bbd49508 ti: 00000000bbdd4000 task.ti: 00000000bbdd4000
[   51.324000] 
[   51.344000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   51.400000] PSW: 00001000000001001111110100001110 Not tainted
[   51.468000] r00-03  000000ff0804fd0e 00000000bbdd5000 00000000404f23f8 00000000bbdd5000
[   51.564000] r04-07  00000000409b3b10 0000000000006000 0000000000001000 0000000000000180
[   51.660000] r08-11  0000000000000000 00000000bfdab0f0 0000000000000018 0000000000000000
[   51.756000] r12-15  0000000000000004 00000000bbe22e00 000000007faf3188 0000000000000000
[   51.852000] r16-19  0000000042004140 0000000000001000 0000000000000001 0000000087654321
[   51.948000] r20-23  000000020000c18c ffffffff87654000 00000000000002a9 00000000000002ee
[   52.044000] r24-27  0000000000000000 ffffffff87654000 00000000bbe22e80 00000000409b3b10
[   52.140000] r28-31  00000000bbe22e80 00000000bbdd5140 00000000bbdd5170 0000c18c0000c18c
[   52.236000] sr00-03  0000000000013800 0000000000000000 0000000000000000 0000000000011800
[   52.332000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[   52.428000] 
[   52.448000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000404f2664 00000000404f2668
[   52.548000]  IIR: 03ffe01f    ISR: 0000000000000000  IOR: 000000000000005c
[   52.628000]  CPU:        0   CR30: 00000000bbdd4000 CR31: 00000000d20345e0
[   52.712000]  ORIG_R28: 0000000040b60718
[   52.756000]  IAOQ[0]: blk_rq_map_sg+0x6bc/0x7d0
[   52.812000]  IAOQ[1]: blk_rq_map_sg+0x6c0/0x7d0
[   52.864000]  RP(r2): blk_rq_map_sg+0x450/0x7d0
[   52.920000] Backtrace:
[   52.948000]  [<00000000003f5ebc>] scsi_init_sgtable+0x94/0x1b0 [scsi_mod]
[   53.028000]  [<00000000003f6044>] scsi_init_io+0x6c/0x258 [scsi_mod]
[   53.104000]  [<000000000080e078>] sd_init_command+0x70/0xec8 [sd_mod]
[   53.180000] scsi_init_sgtable: nr_phys_segments = 1
[   53.180000] scsi_init_sgtable: count = 1, nents = 1
[   53.300000] 
[   53.316000] CPU: 0 PID: 62 Comm: systemd-udevd Not tainted 4.4.0-1-parisc64-smp #6 Debian 4.4.2-2
[   53.424000] Backtrace:
[   53.452000]  [<0000000040215bd8>] show_stack+0x20/0x38
[   53.512000]  [<0000000040520a24>] dump_stack+0x9c/0x110
[   53.576000]  [<0000000040215dac>] die_if_kernel+0x19c/0x2e0
[   53.640000]  [<0000000040216c88>] handle_interruption+0x9a8/0x9d0
[   53.716000] 
[   53.732000] ---[ end trace 596bfe57ff9ccda5 ]---
[   53.788000] scsi_init_sgtable: nr_phys_segments = 1
[   53.788000] scsi_init_sgtable: count = 1, nents = 1

Helge
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From - Thu Nov 08 21:38:31 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: SCSI bug
Date: Sun, 21 Feb 2016 13:49:39 -0800
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References: <28D5FC66-A9E6-4F3E-A8AC-F9E68A6BC543@bell.net>
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	 <9C42B388-96D5-412A-BAC3-14E93415CA21@bell.net>
	 <1456026424.2268.5.camel@HansenPartnership.com>
	 <14EF1F4E-8045-4990-B29E-D489E82B1929@bell.net>
	 <1456078381.2340.5.camel@HansenPartnership.com>
	 <D14AFC12-8245-4862-9FFA-92A4F114FC41@bell.net>
	 <1456081676.2340.10.camel@HansenPartnership.com> <56CA11D2.3020900@gmx.de>
	 <1456086490.2340.18.camel@HansenPartnership.com>
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On Sun, 2016-02-21 at 22:17 +0100, Helge Deller wrote:
> On 21.02.2016 22:09, John David Anglin wrote:
> > On 2016-02-21, at 3:28 PM, James Bottomley wrote:
> > 
> > > That said, I still can't reproduce this, so you're going to have
> > > to
> > > help me find it.  Current theory is ll_merge_request_fn() it
> > > looks like
> > > there's scope for miscalculation in there.  Can you instrument
> > > this
> > > line
> > > 
> > > 	/* Merge is OK... */
> > > 	req->nr_phys_segments = total_phys_segments;
> > > 
> > > To add just before the return
> > > 
> > > if (req->nr_phys_segments != __blk_recalc_rq_segments(rq->q, rq
> > > ->bio,	false) 
> > > 	printk("MISMATCH IN MERGE: got %d, should get %d\n", 
> > > 		req->nr_phys_segments,
> > > 		__blk_recalc_rq_segments(rq->q, rq->bio, false));
> > 
> > This didn't trigger.  There were some typos:
> 
> It didn't trigger for me either.

OK, can you instrument the same thing in ll_new_hw_segment() after 

	req->nr_phys_segments += nr_phys_segs;

> > diff --git a/block/blk-merge.c b/block/blk-merge.c
> > index d9c3a75..e8969ef 100644
> > --- a/block/blk-merge.c
> > +++ b/block/blk-merge.c
> > @@ -545,6 +545,12 @@ static int ll_merge_requests_fn(struct
> > request_queue *q, struct request *req,
> >  
> >         /* Merge is OK... */
> >         req->nr_phys_segments = total_phys_segments;
> > +
> > +if (req->nr_phys_segments != __blk_recalc_rq_segments(req->q, req
> > ->bio,        false)) 
> > +       printk("MISMATCH IN MERGE: got %d, should get %d\n", 
> > +               req->nr_phys_segments,
> > +               __blk_recalc_rq_segments(req->q, req->bio, false));
> > +
> >         return 1;
> >  }
> 
> Interestingly it now triggered somewhere else...
> I enabled CONFIG_DEBUG_SG, which I had enabled the last few times as
> well, but it now happened
> for the first time:

No, that just means the sg table you initialised was too short: the
last element didn't get a sg_magic set; it's effectively the same
error, just showing differently.

James


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From - Thu Nov 08 21:38:31 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: SCSI bug
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On 2016-02-21, at 4:49 PM, James Bottomley wrote:

> OK, can you instrument the same thing in ll_new_hw_segment() after 
> 
> 	req->nr_phys_segments += nr_phys_segs;

This didn't trigger either.   In this boot, we had a bad address:

Bad Address (null pointer deref?): Code=15 regs=000000007c5c5260 (Addr=0000010a)

here:
 IAOQ[0]: blk_rq_map_sg+0x364/0x670                                             
 IAOQ[1]: blk_rq_map_sg+0x368/0x670                                             
 RP(r2): blk_rq_map_sg+0x358/0x670                                              

Dave
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On 2016-02-21, at 4:17 PM, Helge Deller wrote:

> I enabled CONFIG_DEBUG_SG, which I had enabled the last few times as =
well, but it now happened
> for the first time:

I also enabled CONFIG_DEBUG_SG.  I added a bunch of printks and =
eventually narrowed the bug occurance
to __blk_segment_map_sg.  It seems like clearing the termination bit is =
somewhat dangerous.  I added the
attached check.  With it, I get the following on boot:

scsi target6:0:2: Beginning Domain Validation                            =
      =20
 sdb: sdb1 sdb2 sdb3 sdb4                                                =
      =20
scsi target6:0:2: Ending Domain Validation                               =
      =20
scsi target6:0:2: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW =
PCOMP (6.2)
sd 6:0:2:0: [sdc] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)  =
      =20
sd 6:0:0:0: [sdb] Attached SCSI disk                                     =
      =20
sd 6:0:2:0: [sdc] Write Protect is off                                   =
      =20
sd 6:0:2:0: [sdc] Write cache: enabled, read cache: enabled, supports =
DPO and FA
mptbase: ioc1: Initiating bringup                                        =
      =20
sd 6:0:2:0: [sdc] Attached SCSI disk                                     =
      =20
ioc1: LSI53C1030 B2: Capabilities=3D{Initiator,Target}                   =
        =20
scsi host7: ioc1: LSI53C1030 B2, FwRev=3D01032341h, Ports=3D1, MaxQ=3D255,=
 IRQ=3D68    =20
__blk_segment_map_sg: clearing termination bit                           =
      =20
------------[ cut here ]------------                                     =
      =20
kernel BUG at include/linux/scatterlist.h:92!                            =
      =20
__blk_segment_map_sg: clearing termination bit                           =
      =20
------------[ cut here ]------------                                     =
      =20
kernel BUG at include/linux/scatterlist.h:92!                            =
      =20
CPU: 3 PID: 1026 Comm: systemd-udevd Not tainted 4.2.0-rc2+ #16          =
      =20
task: 000000007f77d548 ti: 000000007e4f0000 task.ti: 000000007e4f0000    =
      =20
                                                                         =
      =20
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                    =
      =20
PSW: 00001000000001000011001000001110 Not tainted                        =
      =20
r00-03  000000ff0804320e 000000007e4f1130 00000000403623e8 =
000000007e4f1130    =20
r04-07  000000004074f010 000000000001c000 0000000000001000 =
00000000000001a0    =20
r08-11  000000007e7b3040 0000000000000000 0000000000000000 =
000000007e6990c0    =20
r12-15  000000000000001a 0000000000000000 000000007c784790 =
0000000000000006    =20
r16-19  0000000042d79220 0000000000001000 0000000000000001 =
0000000000000000    =20
r20-23  000000000000002e 00000000705f7367 000000000000001f =
0000000000000000    =20
r24-27  ffffffff87654000 000000000800000e 000000007e6990c0 =
000000004074f010    =20
r28-31  000000007e7b3a00 000000007e4f1230 000000007e4f1260 =
0000000087654321    =20
sr00-03  0000000000016800 0000000000000000 0000000000000000 =
0000000000016800   =20
sr04-07  0000000000000000 0000000000000000 0000000000000000 =
0000000000000000   =20
                                                                         =
      =20
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040362608 =
000000004036260c=20
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000f93c4f1260           =
      =20
 CPU:        3   CR30: 000000007e4f0000 CR31: ffffffffffffffff           =
      =20
 ORIG_R28: 000000000000002e                                              =
      =20
 IAOQ[0]: blk_rq_map_sg+0x580/0x6a0                                      =
      =20
 IAOQ[1]: blk_rq_map_sg+0x584/0x6a0                                      =
      =20
 RP(r2): blk_rq_map_sg+0x360/0x6a0                                       =
      =20
Backtrace:                                                               =
      =20
 [<000000004046f4b0>] scsi_init_sgtable+0x70/0xb8                        =
      =20
 [<000000004046f564>] scsi_init_io+0x6c/0x220                            =
      =20
 [<000000000811c5c0>] sd_setup_read_write_cmnd+0x58/0x968 [sd_mod]       =
      =20
 [<000000000811cf14>] sd_init_command+0x44/0x130 [sd_mod]                =
      =20
 [<000000004046f81c>] scsi_setup_cmnd+0x104/0x1b0                        =
      =20
 [<000000004046fab8>] scsi_prep_fn+0x100/0x1a0                           =
      =20
 [<000000004035b9b0>] blk_peek_request+0x1b8/0x298                       =
      =20
 [<0000000040471028>] scsi_request_fn+0xf8/0xa90                         =
      =20
 [<0000000040357244>] __blk_run_queue+0x4c/0x70                          =
      =20
 [<00000000403802c4>] cfq_insert_request+0x2dc/0x580                     =
      =20
 [<0000000040356404>] __elv_add_request+0x1b4/0x300                      =
      =20

We have in blk-merge.c:

                else {
                        /*
                         * If the driver previously mapped a shorter
                         * list, we could see a termination bit
                         * prematurely unless it fully inits the sg
                         * table on each mapping. We KNOW that there
                         * must be more entries here or the driver
                         * would be buggy, so force clear the
                         * termination bit to avoid doing a full
                         * sg_init_table() in drivers for each command.
                         */
                        if (sg_is_last (*sg))
                          printk ("__blk_segment_map_sg: clearing =
termination bi
t\n");
                        sg_unmark_end(*sg);
                        *sg =3D sg_next(*sg);
                        BUG_ON (!*sg);
                }

The comment suggests there must be more entries...

Dave
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diff --git a/block/blk-merge.c b/block/blk-merge.c
index d9c3a75..f893ecf 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -327,8 +327,11 @@ new_segment:
 			 * termination bit to avoid doing a full
 			 * sg_init_table() in drivers for each command.
 			 */
+			if (sg_is_last (*sg))
+			  printk ("__blk_segment_map_sg: clearing =
termination bit\n");
 			sg_unmark_end(*sg);
 			*sg =3D sg_next(*sg);
+			BUG_ON (!*sg);
 		}
=20
 		sg_set_page(*sg, bvec->bv_page, nbytes, =
bvec->bv_offset);
@@ -392,6 +395,9 @@ int blk_rq_map_sg(struct request_queue *q, struct =
request *rq,
 	if (rq->bio)
 		nsegs =3D __blk_bios_map_sg(q, rq->bio, sglist, &sg);
=20
+	if (!sg)
+		return nsegs;
+
 	if (unlikely(rq->cmd_flags & REQ_COPY_USER) &&
 	    (blk_rq_bytes(rq) & q->dma_pad_mask)) {
 		unsigned int pad_len =3D
@@ -415,8 +421,7 @@ int blk_rq_map_sg(struct request_queue *q, struct =
request *rq,
 		rq->extra_len +=3D q->dma_drain_size;
 	}
=20
-	if (sg)
-		sg_mark_end(sg);
+	sg_mark_end(sg);
=20
 	return nsegs;
 }
@@ -439,6 +444,14 @@ static inline int ll_new_hw_segment(struct =
request_queue *q,
 	 * counters.
 	 */
 	req->nr_phys_segments +=3D nr_phys_segs;
+
+#if 0
+if (req->nr_phys_segments !=3D __blk_recalc_rq_segments(req->q, =
req->bio, false))=20
+	printk("ll_new_hw_segment: MISMATCH IN MERGE: got %d, should get =
%d\n",=20
+	       req->nr_phys_segments,
+	       __blk_recalc_rq_segments(req->q, req->bio, false));
+#endif
+
 	return 1;
=20
 no_merge:
@@ -545,6 +558,14 @@ static int ll_merge_requests_fn(struct =
request_queue *q, struct request *req,
=20
 	/* Merge is OK... */
 	req->nr_phys_segments =3D total_phys_segments;
+
+#if 0
+if (req->nr_phys_segments !=3D __blk_recalc_rq_segments(req->q, =
req->bio,	false))=20
+	printk("MISMATCH IN MERGE: got %d, should get %d\n",=20
+		req->nr_phys_segments,
+		__blk_recalc_rq_segments(req->q, req->bio, false));
+#endif
+
 	return 1;
 }
=20

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Subject: Re: SCSI bug
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To: John David Anglin <dave.anglin@bell.net>
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On 2016-02-21, at 7:53 PM, John David Anglin wrote:

> Backtrace:                                                                      
> [<000000004046f4b0>] scsi_init_sgtable+0x70/0xb8                               
> [<000000004046f564>] scsi_init_io+0x6c/0x220                                   
> [<000000000811c5c0>] sd_setup_read_write_cmnd+0x58/0x968 [sd_mod]              
> [<000000000811cf14>] sd_init_command+0x44/0x130 [sd_mod]                       
> [<000000004046f81c>] scsi_setup_cmnd+0x104/0x1b0                               
> [<000000004046fab8>] scsi_prep_fn+0x100/0x1a0                                  
> [<000000004035b9b0>] blk_peek_request+0x1b8/0x298                              
> [<0000000040471028>] scsi_request_fn+0xf8/0xa90                                
> [<0000000040357244>] __blk_run_queue+0x4c/0x70                                 
> [<00000000403802c4>] cfq_insert_request+0x2dc/0x580                            
> [<0000000040356404>] __elv_add_request+0x1b4/0x300                             
> 
> We have in blk-merge.c:
> 
>                else {
>                        /*
>                         * If the driver previously mapped a shorter
>                         * list, we could see a termination bit
>                         * prematurely unless it fully inits the sg
>                         * table on each mapping. We KNOW that there
>                         * must be more entries here or the driver
>                         * would be buggy, so force clear the
>                         * termination bit to avoid doing a full
>                         * sg_init_table() in drivers for each command.
>                         */
>                        if (sg_is_last (*sg))
>                          printk ("__blk_segment_map_sg: clearing termination bi
> t\n");
>                        sg_unmark_end(*sg);
>                        *sg = sg_next(*sg);
>                        BUG_ON (!*sg);
>                }
> 
> The comment suggests there must be more entries...

I'm thinking with the split the scsi driver needs to provide one or two extra entires in the sg list.

Dave
--
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From - Thu Nov 08 21:38:31 2018
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Cc: Helge Deller <deller@gmx.de>,
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To: John David Anglin <dave.anglin@bell.net>
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On 2016-02-21, at 10:24 PM, John David Anglin wrote:

> On 2016-02-21, at 7:53 PM, John David Anglin wrote:
>=20
>> Backtrace:                                                            =
         =20
>> [<000000004046f4b0>] scsi_init_sgtable+0x70/0xb8                      =
        =20
>> [<000000004046f564>] scsi_init_io+0x6c/0x220                          =
        =20
>> [<000000000811c5c0>] sd_setup_read_write_cmnd+0x58/0x968 [sd_mod]     =
        =20
>> [<000000000811cf14>] sd_init_command+0x44/0x130 [sd_mod]              =
        =20
>> [<000000004046f81c>] scsi_setup_cmnd+0x104/0x1b0                      =
        =20
>> [<000000004046fab8>] scsi_prep_fn+0x100/0x1a0                         =
        =20
>> [<000000004035b9b0>] blk_peek_request+0x1b8/0x298                     =
        =20
>> [<0000000040471028>] scsi_request_fn+0xf8/0xa90                       =
        =20
>> [<0000000040357244>] __blk_run_queue+0x4c/0x70                        =
        =20
>> [<00000000403802c4>] cfq_insert_request+0x2dc/0x580                   =
        =20
>> [<0000000040356404>] __elv_add_request+0x1b4/0x300                    =
        =20
>>=20
>> We have in blk-merge.c:
>>=20
>>               else {
>>                       /*
>>                        * If the driver previously mapped a shorter
>>                        * list, we could see a termination bit
>>                        * prematurely unless it fully inits the sg
>>                        * table on each mapping. We KNOW that there
>>                        * must be more entries here or the driver
>>                        * would be buggy, so force clear the
>>                        * termination bit to avoid doing a full
>>                        * sg_init_table() in drivers for each command.
>>                        */
>>                       if (sg_is_last (*sg))
>>                         printk ("__blk_segment_map_sg: clearing =
termination bi
>> t\n");
>>                       sg_unmark_end(*sg);
>>                       *sg =3D sg_next(*sg);
>>                       BUG_ON (!*sg);
>>               }
>>=20
>> The comment suggests there must be more entries...
>=20
> I'm thinking with the split the scsi driver needs to provide one or =
two extra entires in the sg list.


With the attached patch, I'm able to boot 4.2.0-rc2+ on linux-block at =
commit
54efd50bfd873e2dbf784e0b21a8027ba4299a3e.

I didn't try to optimize the number of extra entries but I know one is =
not enough.

I guess the puzzle is why the number of entries isn't calculated =
correctly in the first place.
Further, why does blk-merge believe that it's okay to go beyond the =
terminator?  Clearly,
the magic number isn't always set, etc.

I added the WARN_ON so I'd know when we run off the end of the the list.

Dave
--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-21--999403916
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diff --git a/block/blk-merge.c b/block/blk-merge.c
index d9c3a75..8e2566b 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -327,6 +327,7 @@ new_segment:
 			 * termination bit to avoid doing a full
 			 * sg_init_table() in drivers for each command.
 			 */
+			WARN_ON(sg_is_last (*sg));
 			sg_unmark_end(*sg);
 			*sg =3D sg_next(*sg);
 		}
@@ -392,6 +393,9 @@ int blk_rq_map_sg(struct request_queue *q, struct =
request *rq,
 	if (rq->bio)
 		nsegs =3D __blk_bios_map_sg(q, rq->bio, sglist, &sg);
=20
+	if (!sg)
+		return nsegs;
+
 	if (unlikely(rq->cmd_flags & REQ_COPY_USER) &&
 	    (blk_rq_bytes(rq) & q->dma_pad_mask)) {
 		unsigned int pad_len =3D
@@ -415,8 +419,7 @@ int blk_rq_map_sg(struct request_queue *q, struct =
request *rq,
 		rq->extra_len +=3D q->dma_drain_size;
 	}
=20
-	if (sg)
-		sg_mark_end(sg);
+	sg_mark_end(sg);
=20
 	return nsegs;
 }
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index b1a2631..b421f03 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -595,6 +595,11 @@ static int scsi_alloc_sgtable(struct =
scsi_data_buffer *sdb, int nents, bool mq)
=20
 	BUG_ON(!nents);
=20
+	/* Provide extra entries in case of split.  */
+	nents +=3D 8;
+	if (nents > SCSI_MAX_SG_SEGMENTS)
+		nents =3D SCSI_MAX_SG_SEGMENTS;
+
 	if (mq) {
 		if (nents <=3D SCSI_MAX_SG_SEGMENTS) {
 			sdb->table.nents =3D nents;

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On 23.02.2016 04:04, John David Anglin wrote:
> On 2016-02-21, at 10:24 PM, John David Anglin wrote:
> 
>> On 2016-02-21, at 7:53 PM, John David Anglin wrote:
>>
>>> Backtrace:                                                                      
>>> [<000000004046f4b0>] scsi_init_sgtable+0x70/0xb8                               
>>> [<000000004046f564>] scsi_init_io+0x6c/0x220                                   
>>> [<000000000811c5c0>] sd_setup_read_write_cmnd+0x58/0x968 [sd_mod]              
>>> [<000000000811cf14>] sd_init_command+0x44/0x130 [sd_mod]                       
>>> [<000000004046f81c>] scsi_setup_cmnd+0x104/0x1b0                               
>>> [<000000004046fab8>] scsi_prep_fn+0x100/0x1a0                                  
>>> [<000000004035b9b0>] blk_peek_request+0x1b8/0x298                              
>>> [<0000000040471028>] scsi_request_fn+0xf8/0xa90                                
>>> [<0000000040357244>] __blk_run_queue+0x4c/0x70                                 
>>> [<00000000403802c4>] cfq_insert_request+0x2dc/0x580                            
>>> [<0000000040356404>] __elv_add_request+0x1b4/0x300                             
>>>
>>> We have in blk-merge.c:
>>>
>>>               else {
>>>                       /*
>>>                        * If the driver previously mapped a shorter
>>>                        * list, we could see a termination bit
>>>                        * prematurely unless it fully inits the sg
>>>                        * table on each mapping. We KNOW that there
>>>                        * must be more entries here or the driver
>>>                        * would be buggy, so force clear the
>>>                        * termination bit to avoid doing a full
>>>                        * sg_init_table() in drivers for each command.
>>>                        */
>>>                       if (sg_is_last (*sg))
>>>                         printk ("__blk_segment_map_sg: clearing termination bi
>>> t\n");
>>>                       sg_unmark_end(*sg);
>>>                       *sg = sg_next(*sg);
>>>                       BUG_ON (!*sg);
>>>               }
>>>
>>> The comment suggests there must be more entries...
>>
>> I'm thinking with the split the scsi driver needs to provide one or two extra entires in the sg list.
> 
> 
> With the attached patch, I'm able to boot 4.2.0-rc2+ on linux-block at commit
> 54efd50bfd873e2dbf784e0b21a8027ba4299a3e.
> 
> I didn't try to optimize the number of extra entries but I know one is not enough.
> 
> I guess the puzzle is why the number of entries isn't calculated correctly in the first place.
> Further, why does blk-merge believe that it's okay to go beyond the terminator?  Clearly,
> the magic number isn't always set, etc.
> 
> I added the WARN_ON so I'd know when we run off the end of the the list.

Still fails to boot for me on c3000 
(although I think the patch is going into the right direction!):

[   25.140000] cdrom: Uniform CD-ROM driver Revision: 3.20
[   25.200000] sd 3:0:6:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   25.304000] sd 3:0:5:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   25.436000]  sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 >
[   25.488000]  sda: sda1 sda2 sda3 < sda5 sda6 >
[   25.560000] sd 3:0:6:0: [sdb] Attached SCSI disk
[   25.636000] scsi_id(112): unaligned access to 0x00000000faad5009 at ip=0x000000004100390b
[   25.752000] sd 3:0:5:0: [sda] Attached SCSI disk
[   25.832000] scsi_id(113): unaligned access to 0x00000000fa90a009 at ip=0x000000004100390b
[   25.972000] ------------[ cut here ]------------
[   26.028000] WARNING: at /build/linux-4.4-neu/linux-4.4.2/block/blk-merge.c:466
[   26.116000] random: nonblocking pool is initialized
[   26.172000] Modules linked in: sr_mod cdrom sd_mod ata_generic ohci_pci ehci_pci ohci_hcd ehci_hcd pata_ns87415 libata sym53c8xx scsi_transport_spi usbcore scsi_modp
[   26.368000] CPU: 0 PID: 65 Comm: systemd-udevd Not tainted 4.4.0-1-parisc64-smp #1 Debian 4.4.2-3
[   26.476000] task: 00000000bbd70b08 ti: 00000000bbea8000 task.ti: 00000000bbea8000
[   26.564000] 
[   26.584000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   26.640000] PSW: 00001000000001001111111100001110 Not tainted
[   26.708000] r00-03  000000ff0804ff0e 00000000409e8380 00000000404f18f4 00000000bbea91e0
[   26.804000] r04-07  00000000409b2b80 0000000000000000 0000000000000000 000000000000001e

Helge
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From - Thu Nov 08 21:38:32 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: SCSI bug
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On 2016-02-23 1:06 PM, Helge Deller wrote:
> On 23.02.2016 04:04, John David Anglin wrote:
>> On 2016-02-21, at 10:24 PM, John David Anglin wrote:
>>
>>> On 2016-02-21, at 7:53 PM, John David Anglin wrote:
>>>
>>>> Backtrace:
>>>> [<000000004046f4b0>] scsi_init_sgtable+0x70/0xb8
>>>> [<000000004046f564>] scsi_init_io+0x6c/0x220
>>>> [<000000000811c5c0>] sd_setup_read_write_cmnd+0x58/0x968 [sd_mod]
>>>> [<000000000811cf14>] sd_init_command+0x44/0x130 [sd_mod]
>>>> [<000000004046f81c>] scsi_setup_cmnd+0x104/0x1b0
>>>> [<000000004046fab8>] scsi_prep_fn+0x100/0x1a0
>>>> [<000000004035b9b0>] blk_peek_request+0x1b8/0x298
>>>> [<0000000040471028>] scsi_request_fn+0xf8/0xa90
>>>> [<0000000040357244>] __blk_run_queue+0x4c/0x70
>>>> [<00000000403802c4>] cfq_insert_request+0x2dc/0x580
>>>> [<0000000040356404>] __elv_add_request+0x1b4/0x300
>>>>
>>>> We have in blk-merge.c:
>>>>
>>>>                else {
>>>>                        /*
>>>>                         * If the driver previously mapped a shorter
>>>>                         * list, we could see a termination bit
>>>>                         * prematurely unless it fully inits the sg
>>>>                         * table on each mapping. We KNOW that there
>>>>                         * must be more entries here or the driver
>>>>                         * would be buggy, so force clear the
>>>>                         * termination bit to avoid doing a full
>>>>                         * sg_init_table() in drivers for each command.
>>>>                         */
>>>>                        if (sg_is_last (*sg))
>>>>                          printk ("__blk_segment_map_sg: clearing termination bi
>>>> t\n");
>>>>                        sg_unmark_end(*sg);
>>>>                        *sg = sg_next(*sg);
>>>>                        BUG_ON (!*sg);
>>>>                }
>>>>
>>>> The comment suggests there must be more entries...
>>> I'm thinking with the split the scsi driver needs to provide one or two extra entires in the sg list.
>>
>> With the attached patch, I'm able to boot 4.2.0-rc2+ on linux-block at commit
>> 54efd50bfd873e2dbf784e0b21a8027ba4299a3e.
>>
>> I didn't try to optimize the number of extra entries but I know one is not enough.
>>
>> I guess the puzzle is why the number of entries isn't calculated correctly in the first place.
>> Further, why does blk-merge believe that it's okay to go beyond the terminator?  Clearly,
>> the magic number isn't always set, etc.
>>
>> I added the WARN_ON so I'd know when we run off the end of the the list.
> Still fails to boot for me on c3000
> (although I think the patch is going into the right direction!):
>
> [   25.140000] cdrom: Uniform CD-ROM driver Revision: 3.20
> [   25.200000] sd 3:0:6:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
> [   25.304000] sd 3:0:5:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
> [   25.436000]  sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 >
> [   25.488000]  sda: sda1 sda2 sda3 < sda5 sda6 >
> [   25.560000] sd 3:0:6:0: [sdb] Attached SCSI disk
> [   25.636000] scsi_id(112): unaligned access to 0x00000000faad5009 at ip=0x000000004100390b
> [   25.752000] sd 3:0:5:0: [sda] Attached SCSI disk
> [   25.832000] scsi_id(113): unaligned access to 0x00000000fa90a009 at ip=0x000000004100390b
> [   25.972000] ------------[ cut here ]------------
> [   26.028000] WARNING: at /build/linux-4.4-neu/linux-4.4.2/block/blk-merge.c:466
This is this warning (not the one I added):

         /*
          * Something must have been wrong if the figured number of
          * segment is bigger than number of req's physical segments
          */
         WARN_ON(nsegs > rq->nr_phys_segments);

We need backtrace to see who called blk_rq_map_sg.  Think driver didn't 
provide enough segments.  Maybe
my "+8" addition should be moved.  I don't think this warning was actual 
failure point.

James mentioned "Apparently in parisc we don't set the max segment size, 
so we inherit 64k even in SCSI drivers."
Can this be changed?

> [   26.116000] random: nonblocking pool is initialized
> [   26.172000] Modules linked in: sr_mod cdrom sd_mod ata_generic ohci_pci ehci_pci ohci_hcd ehci_hcd pata_ns87415 libata sym53c8xx scsi_transport_spi usbcore scsi_modp
> [   26.368000] CPU: 0 PID: 65 Comm: systemd-udevd Not tainted 4.4.0-1-parisc64-smp #1 Debian 4.4.2-3
> [   26.476000] task: 00000000bbd70b08 ti: 00000000bbea8000 task.ti: 00000000bbea8000
> [   26.564000]
> [   26.584000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [   26.640000] PSW: 00001000000001001111111100001110 Not tainted
> [   26.708000] r00-03  000000ff0804ff0e 00000000409e8380 00000000404f18f4 00000000bbea91e0
> [   26.804000] r04-07  00000000409b2b80 0000000000000000 0000000000000000 000000000000001e

Dave

-- 
John David Anglin  dave.anglin@bell.net

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From - Thu Nov 08 21:38:32 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: [BUG] "block: make generic_make_request handle arbitrarily sized bios" breaks boot on parisc-linux
Date: Tue, 23 Feb 2016 21:28:22 -0500
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The following block change breaks boot on parisc-linux:

commit 54efd50bfd873e2dbf784e0b21a8027ba4299a3e
Author: Kent Overstreet <kent.overstreet@gmail.com>
Date:   Thu Apr 23 22:37:18 2015 -0700

   block: make generic_make_request handle arbitrarily sized bios

   The way the block layer is currently written, it goes to great lengths
   to avoid having to split bios; upper layer code (such as bio_add_page())
   checks what the underlying device can handle and tries to always create
   bios that don't need to be split.

   But this approach becomes unwieldy and eventually breaks down with
   stacked devices and devices with dynamic limits, and it adds a lot of
   complexity. If the block layer could split bios as needed, we could
   eliminate a lot of complexity elsewhere - particularly in stacked
   drivers. Code that creates bios can then create whatever size bios are
   convenient, and more importantly stacked drivers don't have to deal with
   both their own bio size limitations and the limitations of the
   (potentially multiple) devices underneath them.  In the future this will
   let us delete merge_bvec_fn and a bunch of other code.

   We do this by adding calls to blk_queue_split() to the various
   make_request functions that need it - a few can already handle arbitrary
   size bios. Note that we add the call _after_ any call to
   blk_queue_bounce(); this means that blk_queue_split() and
   blk_recalc_rq_segments() don't need to be concerned with bouncing
   affecting segment merging.

   Some make_request_fn() callbacks were simple enough to audit and verify
   they don't need blk_queue_split() calls. The skipped ones are:

    * nfhd_make_request (arch/m68k/emu/nfblock.c)
    * axon_ram_make_request (arch/powerpc/sysdev/axonram.c)
    * simdisk_make_request (arch/xtensa/platforms/iss/simdisk.c)
    * brd_make_request (ramdisk - drivers/block/brd.c)
    * mtip_submit_request (drivers/block/mtip32xx/mtip32xx.c)
    * loop_make_request
    * null_queue_bio
    * bcache's make_request fns

   Some others are almost certainly safe to remove now, but will be left
   for future patches.

   Cc: Jens Axboe <axboe@kernel.dk>
   Cc: Christoph Hellwig <hch@infradead.org>
   Cc: Al Viro <viro@zeniv.linux.org.uk>
   Cc: Ming Lei <ming.lei@canonical.com>
   Cc: Neil Brown <neilb@suse.de>
   Cc: Alasdair Kergon <agk@redhat.com>
   Cc: Mike Snitzer <snitzer@redhat.com>
   Cc: dm-devel@redhat.com
   Cc: Lars Ellenberg <drbd-dev@lists.linbit.com>
   Cc: drbd-user@lists.linbit.com
   Cc: Jiri Kosina <jkosina@suse.cz>
   Cc: Geoff Levand <geoff@infradead.org>
   Cc: Jim Paris <jim@jtan.com>
   Cc: Philip Kelleher <pjk1939@linux.vnet.ibm.com>
   Cc: Minchan Kim <minchan@kernel.org>
   Cc: Nitin Gupta <ngupta@vflare.org>
   Cc: Oleg Drokin <oleg.drokin@intel.com>
   Cc: Andreas Dilger <andreas.dilger@intel.com>
   Acked-by: NeilBrown <neilb@suse.de> (for the 'md/md.c' bits)
   Acked-by: Mike Snitzer <snitzer@redhat.com>
   Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
   Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
   [dpark: skip more mq-based drivers, resolve merge conflicts, etc.]
   Signed-off-by: Dongsu Park <dpark@posteo.net>
   Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
   Signed-off-by: Jens Axboe <axboe@fb.com>

This thread on the linux-parisc has most of the discussion and analysis:
http://www.spinics.net/lists/linux-parisc/msg06710.html

Essentially, the SCSI layer underestimates the number of sg segments needed and we run off the end of the sg list and crash.
This happens because the protect bit is ignored.  As a result 4.3 and later kernels fail to boot.  This includes the current Debian
kernel for hppa.

Hopefully, the block group can help resolve this issue.  We can help with testing if needed.

Thanks,
Dave Anglin
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:38:32 2018
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Subject: Re: [BUG] "block: make generic_make_request handle arbitrarily sized
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Cc: linux-block@vger.kernel.org,
	Linux SCSI List <linux-scsi@vger.kernel.org>,
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On Wed, Feb 24, 2016 at 10:28 AM, John David Anglin
<dave.anglin@bell.net> wrote:
> The following block change breaks boot on parisc-linux:
>
> commit 54efd50bfd873e2dbf784e0b21a8027ba4299a3e
> Author: Kent Overstreet <kent.overstreet@gmail.com>
> Date:   Thu Apr 23 22:37:18 2015 -0700
>
>    block: make generic_make_request handle arbitrarily sized bios
>
>    The way the block layer is currently written, it goes to great lengths
>    to avoid having to split bios; upper layer code (such as bio_add_page())
>    checks what the underlying device can handle and tries to always create
>    bios that don't need to be split.
>
>    But this approach becomes unwieldy and eventually breaks down with
>    stacked devices and devices with dynamic limits, and it adds a lot of
>    complexity. If the block layer could split bios as needed, we could
>    eliminate a lot of complexity elsewhere - particularly in stacked
>    drivers. Code that creates bios can then create whatever size bios are
>    convenient, and more importantly stacked drivers don't have to deal with
>    both their own bio size limitations and the limitations of the
>    (potentially multiple) devices underneath them.  In the future this will
>    let us delete merge_bvec_fn and a bunch of other code.
>
>    We do this by adding calls to blk_queue_split() to the various
>    make_request functions that need it - a few can already handle arbitrary
>    size bios. Note that we add the call _after_ any call to
>    blk_queue_bounce(); this means that blk_queue_split() and
>    blk_recalc_rq_segments() don't need to be concerned with bouncing
>    affecting segment merging.
>
>    Some make_request_fn() callbacks were simple enough to audit and verify
>    they don't need blk_queue_split() calls. The skipped ones are:
>
>     * nfhd_make_request (arch/m68k/emu/nfblock.c)
>     * axon_ram_make_request (arch/powerpc/sysdev/axonram.c)
>     * simdisk_make_request (arch/xtensa/platforms/iss/simdisk.c)
>     * brd_make_request (ramdisk - drivers/block/brd.c)
>     * mtip_submit_request (drivers/block/mtip32xx/mtip32xx.c)
>     * loop_make_request
>     * null_queue_bio
>     * bcache's make_request fns
>
>    Some others are almost certainly safe to remove now, but will be left
>    for future patches.
>
>    Cc: Jens Axboe <axboe@kernel.dk>
>    Cc: Christoph Hellwig <hch@infradead.org>
>    Cc: Al Viro <viro@zeniv.linux.org.uk>
>    Cc: Ming Lei <ming.lei@canonical.com>
>    Cc: Neil Brown <neilb@suse.de>
>    Cc: Alasdair Kergon <agk@redhat.com>
>    Cc: Mike Snitzer <snitzer@redhat.com>
>    Cc: dm-devel@redhat.com
>    Cc: Lars Ellenberg <drbd-dev@lists.linbit.com>
>    Cc: drbd-user@lists.linbit.com
>    Cc: Jiri Kosina <jkosina@suse.cz>
>    Cc: Geoff Levand <geoff@infradead.org>
>    Cc: Jim Paris <jim@jtan.com>
>    Cc: Philip Kelleher <pjk1939@linux.vnet.ibm.com>
>    Cc: Minchan Kim <minchan@kernel.org>
>    Cc: Nitin Gupta <ngupta@vflare.org>
>    Cc: Oleg Drokin <oleg.drokin@intel.com>
>    Cc: Andreas Dilger <andreas.dilger@intel.com>
>    Acked-by: NeilBrown <neilb@suse.de> (for the 'md/md.c' bits)
>    Acked-by: Mike Snitzer <snitzer@redhat.com>
>    Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
>    Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
>    [dpark: skip more mq-based drivers, resolve merge conflicts, etc.]
>    Signed-off-by: Dongsu Park <dpark@posteo.net>
>    Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
>    Signed-off-by: Jens Axboe <axboe@fb.com>
>
> This thread on the linux-parisc has most of the discussion and analysis:
> http://www.spinics.net/lists/linux-parisc/msg06710.html
>
> Essentially, the SCSI layer underestimates the number of sg segments needed and we run off the end of the sg list and crash.
> This happens because the protect bit is ignored.  As a result 4.3 and later kernels fail to boot.  This includes the current Debian
> kernel for hppa.
>
> Hopefully, the block group can help resolve this issue.  We can help with testing if needed.
>

We fixed several similar bugs, but maybe there is another one, :-(

Could you apply the attached debug patch and post the log after the issue is
triggered?

Thanks,
Ming Lei

--94eb2c0327209ec937052c7f712c
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Subject: [PATCH 1/3] net: tulip: Use setup_timer()
Date: Wed, 24 Feb 2016 19:27:49 +0530
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Convert a call to init_timer and accompanying intializations of
the timer's data and function fields to a call to setup_timer.

The Coccinelle semantic patch that fixes this problem is
as follows:

// <smpl>
@@
expression t,f,d;
@@

-init_timer(&t);
+setup_timer(&t,f,d);
-t.data = d;
-t.function = f;
// </smpl>

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
---
 drivers/net/ethernet/dec/tulip/tulip_core.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index b553409..94d0eeb 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -505,9 +505,7 @@ media_picked:
 	tp->timer.expires = RUN_AT(next_tick);
 	add_timer(&tp->timer);
 #ifdef CONFIG_TULIP_NAPI
-	init_timer(&tp->oom_timer);
-        tp->oom_timer.data = (unsigned long)dev;
-        tp->oom_timer.function = oom_timer;
+	setup_timer(&tp->oom_timer, oom_timer, (unsigned long)dev);
 #endif
 }
 
@@ -782,9 +780,8 @@ static void tulip_down (struct net_device *dev)
 
 	spin_unlock_irqrestore (&tp->lock, flags);
 
-	init_timer(&tp->timer);
-	tp->timer.data = (unsigned long)dev;
-	tp->timer.function = tulip_tbl[tp->chip_id].media_timer;
+	setup_timer(&tp->timer, tulip_tbl[tp->chip_id].media_timer,
+		    (unsigned long)dev);
 
 	dev->if_port = tp->saved_if_port;
 
@@ -1475,9 +1472,8 @@ static int tulip_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	tp->csr0 = csr0;
 	spin_lock_init(&tp->lock);
 	spin_lock_init(&tp->mii_lock);
-	init_timer(&tp->timer);
-	tp->timer.data = (unsigned long)dev;
-	tp->timer.function = tulip_tbl[tp->chip_id].media_timer;
+	setup_timer(&tp->timer, tulip_tbl[tp->chip_id].media_timer,
+		    (unsigned long)dev);
 
 	INIT_WORK(&tp->media_work, tulip_tbl[tp->chip_id].media_task);
 
-- 
1.9.1

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Subject: Re: [BUG] "block: make generic_make_request handle arbitrarily sized
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	Linux SCSI List <linux-scsi@vger.kernel.org>,
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Hi Ming Lei,

On 24.02.2016 08:59, Ming Lei wrote:
> On Wed, Feb 24, 2016 at 10:28 AM, John David Anglin
> <dave.anglin@bell.net> wrote:
>> The following block change breaks boot on parisc-linux:
>>
>> commit 54efd50bfd873e2dbf784e0b21a8027ba4299a3e
>> Author: Kent Overstreet <kent.overstreet@gmail.com>
>> Date:   Thu Apr 23 22:37:18 2015 -0700
>>
>>    block: make generic_make_request handle arbitrarily sized bios
>>
>>    The way the block layer is currently written, it goes to great lengths
>>    to avoid having to split bios; upper layer code (such as bio_add_page())
>>    checks what the underlying device can handle and tries to always create
>>    bios that don't need to be split.
>>
>>    But this approach becomes unwieldy and eventually breaks down with
>>    stacked devices and devices with dynamic limits, and it adds a lot of
>>    complexity. If the block layer could split bios as needed, we could
>>    eliminate a lot of complexity elsewhere - particularly in stacked
>>    drivers. Code that creates bios can then create whatever size bios are
>>    convenient, and more importantly stacked drivers don't have to deal with
>>    both their own bio size limitations and the limitations of the
>>    (potentially multiple) devices underneath them.  In the future this will
>>    let us delete merge_bvec_fn and a bunch of other code.
>>
>>    We do this by adding calls to blk_queue_split() to the various
>>    make_request functions that need it - a few can already handle arbitrary
>>    size bios. Note that we add the call _after_ any call to
>>    blk_queue_bounce(); this means that blk_queue_split() and
>>    blk_recalc_rq_segments() don't need to be concerned with bouncing
>>    affecting segment merging.
>>
>>    Some make_request_fn() callbacks were simple enough to audit and verify
>>    they don't need blk_queue_split() calls. The skipped ones are:
>>
>>     * nfhd_make_request (arch/m68k/emu/nfblock.c)
>>     * axon_ram_make_request (arch/powerpc/sysdev/axonram.c)
>>     * simdisk_make_request (arch/xtensa/platforms/iss/simdisk.c)
>>     * brd_make_request (ramdisk - drivers/block/brd.c)
>>     * mtip_submit_request (drivers/block/mtip32xx/mtip32xx.c)
>>     * loop_make_request
>>     * null_queue_bio
>>     * bcache's make_request fns
>>
>>    Some others are almost certainly safe to remove now, but will be left
>>    for future patches.
>>
>>    Cc: Jens Axboe <axboe@kernel.dk>
>>    Cc: Christoph Hellwig <hch@infradead.org>
>>    Cc: Al Viro <viro@zeniv.linux.org.uk>
>>    Cc: Ming Lei <ming.lei@canonical.com>
>>    Cc: Neil Brown <neilb@suse.de>
>>    Cc: Alasdair Kergon <agk@redhat.com>
>>    Cc: Mike Snitzer <snitzer@redhat.com>
>>    Cc: dm-devel@redhat.com
>>    Cc: Lars Ellenberg <drbd-dev@lists.linbit.com>
>>    Cc: drbd-user@lists.linbit.com
>>    Cc: Jiri Kosina <jkosina@suse.cz>
>>    Cc: Geoff Levand <geoff@infradead.org>
>>    Cc: Jim Paris <jim@jtan.com>
>>    Cc: Philip Kelleher <pjk1939@linux.vnet.ibm.com>
>>    Cc: Minchan Kim <minchan@kernel.org>
>>    Cc: Nitin Gupta <ngupta@vflare.org>
>>    Cc: Oleg Drokin <oleg.drokin@intel.com>
>>    Cc: Andreas Dilger <andreas.dilger@intel.com>
>>    Acked-by: NeilBrown <neilb@suse.de> (for the 'md/md.c' bits)
>>    Acked-by: Mike Snitzer <snitzer@redhat.com>
>>    Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
>>    Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
>>    [dpark: skip more mq-based drivers, resolve merge conflicts, etc.]
>>    Signed-off-by: Dongsu Park <dpark@posteo.net>
>>    Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
>>    Signed-off-by: Jens Axboe <axboe@fb.com>
>>
>> This thread on the linux-parisc has most of the discussion and analysis:
>> http://www.spinics.net/lists/linux-parisc/msg06710.html
>>
>> Essentially, the SCSI layer underestimates the number of sg segments needed and we run off the end of the sg list and crash.
>> This happens because the protect bit is ignored.  As a result 4.3 and later kernels fail to boot.  This includes the current Debian
>> kernel for hppa.
>>
>> Hopefully, the block group can help resolve this issue.  We can help with testing if needed.
>>
> 
> We fixed several similar bugs, but maybe there is another one, :-(

Thanks for your help!

> Could you apply the attached debug patch and post the log after the issue is
> triggered?

Sadly I was not yet able to produce the requested output for you.
It seems we have - probably triggered due to the block splitting itself - some kind of memory/stack
corruption in here as well. Note, the stack grows upwards(!) on parisc, so maybe local variables
get overwritten somehow...?

First I applied your patch as is. 
Here is the system log so far:

[   24.940000] cdrom: Uniform CD-ROM driver Revision: 3.20
[   25.000000] sd 3:0:6:0: [sdb] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
[   25.092000] sd 3:0:5:0: [sda] Write Protect is off
[   25.152000] sd 3:0:5:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   25.268000] sd 3:0:6:0: [sdb] Write Protect is off
[   25.328000] sd 3:0:6:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   25.452000]  sda: sda1 sda2 sda3 < sda5 sda6 >
[   25.508000]  sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 >
[   25.584000] scsi_id(112): unaligned access to 0x00000000facac009 at ip=0x000000004100390b
[   25.688000] sd 3:0:6:0: [sdb] Attached SCSI disk
[   25.752000] sd 3:0:5:0: [sda] Attached SCSI disk
[   25.840000] scsi_id(113): unaligned access to 0x00000000fa799009 at ip=0x000000004100390b
[   25.972000] random: nonblocking pool is initialized
[   26.064000] ------------[ cut here ]------------
[   26.120000] WARNING: at /build/linux-4.4/linux-4.4.2/block/blk-merge.c:484
[   26.200000] Modules linked in: sd_mod sr_mod cdrom ata_generic ohci_pci ehci_pci ohci_hcd ehci_hcd pata_ns87415 libata sym53c8xx scsi_transport_spi usbcore usb_common scsi_mod tulip
[   26.396000] CPU: 0 PID: 67 Comm: systemd-udevd Not tainted 4.4.0-1-parisc64-smp #7 Debian 4.4.2-2
[   26.504000] task: 00000000bbe96b18 ti: 00000000bbf00000 task.ti: 00000000bbf00000
[   26.592000]
[   26.608000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   26.664000] PSW: 00001000000001001111111100001110 Not tainted
[   26.736000] r00-03  000000ff0804ff0e 00000000409e9280 00000000404f22a4 00000000bbf011e0

Here it stops. Usually you would see a stack backtrace now, but as I mentioned above
maybe the stack got corrupted and as such your tracing code is not being executed.

Then I moved the WARN_ON behind you tracing code. With that I got:

[   25.352000] cdrom: Uniform CD-ROM driver Revision: 3.20
[   25.444000]  sda: sda1 sda2 sda3 < sda5 sda6 >
[   25.496000]  sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 >
[   25.568000] sd 3:0:5:0: [sda] Attached SCSI disk
[   25.644000] scsi_id(112): unaligned access to 0x00000000fae80009 at ip=0x000000004100390b
[   25.752000] sd 3:0:6:0: [sdb] Attached SCSI disk
[   25.836000] scsi_id(113): unaligned access to 0x00000000fac76009 at ip=0x000000004100390b
[   25.988000] random: nonblocking pool is initialized
[   26.048000] ------------[ cut here ]------------
[   26.104000] kernel BUG at /build/linux-4.4/linux-4.4.2/include/linux/scatterlist.h:92!
[   26.196000] CPU: 0 PID: 68 Comm: systemd-udevd Not tainted 4.4.0-1-parisc64-smp #8 Debian 4.4.2-2
[   26.304000] task: 00000000bbeb40f8 ti: 00000000bbf08000 task.ti: 00000000bbf08000
[   26.392000] 
[   26.412000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   26.468000] PSW: 00001000000001001111111100001110 Not tainted
[   26.536000] r00-03  000000ff0804ff0e 00000000bbf091e0 00000000404f228c 00000000bbf091e0
[   26.632000] r04-07  00000000409b3a80 0000000000005000 0000000000000000 0000000000001000
[   26.728000] r08-11  000000000000001b 00000000000001b0 00000000bfd6e0f0 00000000bbe15a60
[   26.824000] r12-15  0000000000000000 0000000000000000 0000000000000003 000000007fa95178

Again, no stack backtrace.

Maybe Dave has more luck, otherwise I'll continue to try to get some info.

Helge
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From - Thu Nov 08 21:38:32 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.scsi,gmane.linux.ports.parisc
Subject: Re: [BUG] "block: make generic_make_request handle arbitrarily sized bios" breaks boot on parisc-linux
Date: Wed, 24 Feb 2016 18:28:02 -0500
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Cc: Ming Lei <tom.leiming@gmail.com>, linux-block@vger.kernel.org,
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	James Bottomley <James.Bottomley@hansenpartnership.com>,
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On 2016-02-24, at 4:36 PM, Helge Deller wrote:

> Maybe Dave has more luck, otherwise I'll continue to try to get some =
info.

I tried your patch on the commit in linux-block which first failed to =
boot.  As with Helge, the
system crashed and no useful data was output on console.  I then applied =
following patch
to give some extra segments and tired again:

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index b1a2631..b421f03 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -595,6 +595,11 @@ static int scsi_alloc_sgtable(struct =
scsi_data_buffer *sdb, int nents, bool mq)
=20
 	BUG_ON(!nents);
=20
+	/* Provide extra entries in case of split.  */
+	nents +=3D 8;
+	if (nents > SCSI_MAX_SG_SEGMENTS)
+		nents =3D SCSI_MAX_SG_SEGMENTS;
+
 	if (mq) {
 		if (nents <=3D SCSI_MAX_SG_SEGMENTS) {
 			sdb->table.nents =3D nents;

The attached file shows the crash in first boot.  The second boot was =
successful and various output
was generated by your check code.

Let me know if you want me to try with HEAD.

Regards,
Dave Anglin
--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-15--839570894
Content-Disposition: attachment;
	filename=boot.log.txt
Content-Type: text/plain;
	name="boot.log.txt"
Content-Transfer-Encoding: quoted-printable

sd 6:0:2:0: [sdc] Attached SCSI disk                                     =
      =20
------------[ cut here ]------------                                     =
      =20
------------[ cut here ]------------                                     =
      =20
kernel BUG at include/linux/scatterlist.h:92!                            =
      =20
CPU: 1 PID: 1026 Comm: systemd-udevd Not tainted 4.2.0-rc2+ #24          =
      =20
task: 000000007f76ac48 ti: 000000007e734000 task.ti: 000000007e734000    =
      =20
                                                                         =
      =20
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                    =
      =20
PSW: 00001000000001001111010100001110 Not tainted                        =
      =20
r00-03  000000ff0804f50e 000000007e735130 00000000403623f0 =
000000007e735130    =20
r04-07  0000000040750090 000000000001b000 0000000000001000 =
00000000000001b0    =20
r08-11  0000000000000000 0000000000000000 000000007f036100 =
000000007c486f80    =20
r12-15  0000000000000001 0000000000000004 000000000000001b =
000000007e048088    =20
r16-19  0000000000000000 0000000042d79c00 0000000000001000 =
0000000000001000    =20
r20-23  0000000000000000 000000000000a000 00000000407d1940 =
0002d05ffff4be80    =20
r24-27  ffffffff87654000 000000003e400000 000000007c486f80 =
0000000040750090    =20
r28-31  0000000000000000 000000007e735230 000000007e735260 =
0000000087654321    =20
sr00-03  0000000000016800 0000000000000000 0000000000000000 =
0000000000016800   =20
sr04-07  0000000000000000 0000000000000000 0000000000000000 =
0000000000000000   =20
                                                                         =
      =20
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040362614 =
0000000040362618=20
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000f9cd735260           =
      =20
 CPU:        1   CR30: 000000007e734000 CR31: 15fcd4f080459787           =
      =20
 ORIG_R28: 0000000000011220                                              =
      =20
 IAOQ[0]: blk_rq_map_sg+0x58c/0x8c0                                      =
      =20
 IAOQ[1]: blk_rq_map_sg+0x590/0x8c0                                      =
      =20
 RP(r2): blk_rq_map_sg+0x368/0x8c0                                       =
      =20
Backtrace:                                                               =
      =20
 [<000000004046f6d0>] scsi_init_sgtable+0x70/0xb8                        =
      =20
 [<000000004046f784>] scsi_init_io+0x6c/0x220                            =
      =20
 [<00000000104ab5c0>] sd_setup_read_write_cmnd+0x58/0x968 [sd_mod]       =
      =20
 [<00000000104abf14>] sd_init_command+0x44/0x130 [sd_mod]                =
      =20
 [<000000004046fa3c>] scsi_setup_cmnd+0x104/0x1b0                        =
      =20
 [<000000004046fcd8>] scsi_prep_fn+0x100/0x1a0                           =
      =20
 [<000000004035b9b0>] blk_peek_request+0x1b8/0x298                       =
      =20
 [<0000000040471248>] scsi_request_fn+0xf8/0xa90                         =
      =20
 [<0000000040357244>] __blk_run_queue+0x4c/0x70                          =
      =20
 [<00000000403804e4>] cfq_insert_request+0x2dc/0x580                     =
      =20
 [<0000000040356404>] __elv_add_request+0x1b4/0x300                      =
      =20
                                                                         =
      =20
CPU: 1 PID: 1026 Comm: systemd-udevd Not tainted 4.2.0-rc2+ #24          =
      =20
Backtrace:                                                               =
      =20
 [<000000004015e4a8>] show_stack+0x20/0x38                               =
      =20
 [<0000000040385f9c>] dump_stack+0x9c/0x110                              =
      =20
 [<000000004015e67c>] die_if_kernel+0x19c/0x2e0                          =
      =20
 [<000000004015f558>] handle_interruption+0x9a8/0x9d0                    =
      =20
                                                                         =
      =20
---[ end trace 4edd1ace8cf92f30 ]---                                     =
      =20
kernel BUG at include/linux/scatterlist.h:92!                            =
      =20
CPU: 3 PID: 1021 Comm: systemd-udevd Tainted: G      D         =
4.2.0-rc2+ #24  =20
task: 000000007f7b63c8 ti: 000000007c650000 task.ti: 000000007c650000    =
      =20
                                                                         =
      =20
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                    =
      =20
PSW: 00001000000001001111111100001110 Tainted: G      D                  =
      =20
r00-03  000000ff0804ff0e 000000007c651130 00000000403623f0 =
000000007c651130    =20
r04-07  0000000040750090 000000000000c000 0000000000001000 =
00000000000002a0    =20
r08-11  0000000000000000 0000000000000000 000000007e03f280 =
000000007e410060    =20
r12-15  0000000000000001 0000000000000003 000000000000002a =
000000007e2cb7d0    =20
r16-19  0000000000000000 0000000042df0500 0000000000001000 =
0000000000001000    =20
r20-23  0000000000000000 0000000000011000 00000000407d1940 =
0002eb2f3ff45343    =20
r24-27  ffffffff87654000 0000000000001000 000000007e410060 =
0000000040750090    =20
r28-31  000000007e410048 000000007c651230 000000007c651260 =
0000000087654321    =20
sr00-03  0000000000013800 0000000000000000 0000000000000000 =
0000000000013800   =20
sr04-07  0000000000000000 0000000000000000 0000000000000000 =
0000000000000000   =20
                                                                         =
      =20
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040362614 =
0000000040362618=20
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000000f194651260           =
      =20
 CPU:        3   CR30: 000000007c650000 CR31: 790e0bfc707c59cf           =
      =20
 ORIG_R28: 0000000000011220                                              =
      =20
 IAOQ[0]: blk_rq_map_sg+0x58c/0x8c0                                      =
      =20
 IAOQ[1]: blk_rq_map_sg+0x590/0x8c0                                      =
      =20
 RP(r2): blk_rq_map_sg+0x368/0x8c0                                       =
      =20
Backtrace:                                                               =
      =20
 [<000000004046f6d0>] scsi_init_sgtable+0x70/0xb8                        =
      =20
 [<000000004046f784>] scsi_init_io+0x6c/0x220                            =
      =20
 [<00000000104ab5c0>] sd_setup_read_write_cmnd+0x58/0x968 [sd_mod]       =
      =20
 [<00000000104abf14>] sd_init_command+0x44/0x130 [sd_mod]                =
      =20
 [<000000004046fa3c>] scsi_setup_cmnd+0x104/0x1b0                        =
      =20
 [<000000004046fcd8>] scsi_prep_fn+0x100/0x1a0                           =
      =20
 [<000000004035b9b0>] blk_peek_request+0x1b8/0x298                       =
      =20
 [<0000000040471248>] scsi_request_fn+0xf8/0xa90                         =
      =20
 [<0000000040357244>] __blk_run_queue+0x4c/0x70                          =
      =20
 [<00000000403804e4>] cfq_insert_request+0x2dc/0x580                     =
      =20
 [<0000000040356404>] __elv_add_request+0x1b4/0x300                      =
      =20
                                                                         =
      =20
CPU: 3 PID: 1021 Comm: systemd-udevd Tainted: G      D         =
4.2.0-rc2+ #24  =20
Backtrace:                                                               =
      =20
 [<000000004015e4a8>] show_stack+0x20/0x38                               =
      =20
 [<0000000040385f9c>] dump_stack+0x9c/0x110                              =
      =20
 [<000000004015e67c>] die_if_kernel+0x19c/0x2e0                          =
      =20
 [<000000004015f558>] handle_interruption+0x9a8/0x9d0                    =
      =20
                                                                         =
      =20
---[ end trace 4edd1ace8cf92f31 ]---                                     =
      =20
NMI watchdog: BUG: soft lockup - CPU#2 stuck for 22s! =
[systemd-udevd:1021]     =20
Modules linked in: ohci_pci ehci_pci ohci_hcd sr_mod mptspi ehci_hcd =
sd_mod mptn
CPU: 2 PID: 1021 Comm: systemd-udevd Tainted: G      D         =
4.2.0-rc2+ #24  =20
task: 000000007f7b63c8 ti: 000000007c650000 task.ti: 000000007c650000    =
      =20
                                                                         =
      =20
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                    =
      =20
PSW: 00001000000001101111111100001111 Tainted: G      D                  =
      =20
r00-03  000000ff0806ff0f 000000007c651d60 00000000401fec7c =
000000007c651c90    =20
r04-07  0000000040750090 000000007c651d30 00000000407e2280 =
00000000407e21b8    =20
r08-11  0000000042e8d3c0 0000000042e8d3c8 0000000000000001 =
0000000040727d70    =20
r12-15  0000000000000000 000000007c651d30 000000000000002a =
000000007e2cb7d0    =20
r16-19  000000007c651260 0000000042df0500 0000000000001000 =
0000000042e83620    =20
r20-23  0000000000000001 000000000800000f 000000000800000f =
0000000000000000    =20
r24-27  0000000000000000 0000000000000020 0000000042e8d3c8 =
0000000040750090    =20
r28-31  0000000000000001 000000007c651db0 000000007c651d60 =
0000000000000003    =20
sr00-03  0000000000015800 0000000000013800 0000000000000000 =
0000000000015800   =20
sr04-07  0000000000000000 0000000000000000 0000000000000000 =
0000000000000000   =20
                                                                         =
      =20
IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401feca4 =
00000000401feca8=20
 IIR: 4a7f0030    ISR: 0000000040750090  IOR: 00000000408b568c           =
      =20
 CPU:        2   CR30: 000000007c650000 CR31: ffffffffffffffff           =
      =20
 ORIG_R28: 00000000407e2258                                              =
      =20
 IAOQ[0]: smp_call_function_many+0x32c/0x3b8                             =
      =20
 IAOQ[1]: smp_call_function_many+0x330/0x3b8                             =
      =20
 RP(r2): smp_call_function_many+0x304/0x3b8                              =
      =20
Backtrace:                                                               =
      =20
 [<00000000401fedec>] on_each_cpu+0x5c/0xa0                              =
      =20
 [<000000004015bdb0>] flush_tlb_all+0x108/0x1e8                          =
      =20
 [<0000000040241700>] tlb_flush_mmu_tlbonly+0x48/0xa8                    =
      =20
 [<00000000402423e8>] tlb_finish_mmu+0x30/0x98                           =
      =20
 [<000000004024e87c>] exit_mmap+0x134/0x1b8                              =
      =20
 [<00000000401834a0>] mmput+0xc0/0x1b0                                   =
      =20
 [<00000000401886a0>] do_exit+0x318/0xbe0                                =
      =20
 [<000000004015e6d8>] die_if_kernel+0x1f8/0x2e0                          =
      =20
 [<000000004015f558>] handle_interruption+0x9a8/0x9d0                    =
      =20
                                                                         =
      =20
timer_interrupt(CPU 2): delayed! cycles 801FB1C1 rem 6B3BF  next/now =
236C62FFC9A
NMI watchdog: BUG: soft lockup - CPU#2 stuck for 22s! =
[systemd-udevd:1021]     =20
Modules linked in: ohci_pci ehci_pci ohci_hcd sr_mod mptspi ehci_hcd =
sd_mod mptn
CPU: 2 PID: 1021 Comm: systemd-udevd Tainted: G      D      L  =
4.2.0-rc2+ #24  =20
task: 000000007f7b63c8 ti: 000000007c650000 task.ti: 000000007c650000    =
      =20
                                                                         =
      =20
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                    =
      =20
PSW: 00001000000001101111111100001111 Tainted: G      D      L           =
      =20
r00-03  000000ff0806ff0f 000000007c651d60 00000000401fec7c =
000000007c651c90    =20
r04-07  0000000040750090 000000007c651d30 00000000407e2280 =
00000000407e21b8    =20
r08-11  0000000042e8d3c0 0000000042e8d3c8 0000000000000001 =
0000000040727d70    =20
r12-15  0000000000000000 000000007c651d30 000000000000002a =
000000007e2cb7d0    =20
r16-19  000000007c651260 0000000042df0500 0000000000001000 =
0000000042e83620    =20
r20-23  0000000000000001 000000000800000f 000000000800000f =
0000000000000000    =20
r24-27  0000000000000000 0000000000000020 0000000042e8d3c8 =
0000000040750090    =20
r28-31  0000000000000001 000000007c651db0 000000007c651d60 =
0000000000000003    =20
sr00-03  0000000000015800 0000000000013800 0000000000000000 =
0000000000015800   =20
sr04-07  0000000000000000 0000000000000000 0000000000000000 =
0000000000000000   =20
                                                                         =
      =20
IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401feca4 =
00000000401feca8=20
 IIR: 4a7f0030    ISR: 0000000040750090  IOR: 00000000408b568c           =
      =20
 CPU:        2   CR30: 000000007c650000 CR31: ffffffffffffffff           =
      =20
 ORIG_R28: 00000000407e2258                                              =
      =20
 IAOQ[0]: smp_call_function_many+0x32c/0x3b8                             =
      =20
 IAOQ[1]: smp_call_function_many+0x330/0x3b8                             =
      =20
 RP(r2): smp_call_function_many+0x304/0x3b8                              =
      =20
Backtrace:                                                               =
      =20
 [<00000000401fedec>] on_each_cpu+0x5c/0xa0                              =
      =20
 [<000000004015bdb0>] flush_tlb_all+0x108/0x1e8                          =
      =20
 [<0000000040241700>] tlb_flush_mmu_tlbonly+0x48/0xa8                    =
      =20
 [<00000000402423e8>] tlb_finish_mmu+0x30/0x98                           =
      =20
 [<000000004024e87c>] exit_mmap+0x134/0x1b8                              =
      =20
 [<00000000401834a0>] mmput+0xc0/0x1b0                                   =
      =20
 [<00000000401886a0>] do_exit+0x318/0xbe0                                =
      =20
 [<000000004015e6d8>] die_if_kernel+0x1f8/0x2e0                          =
      =20
 [<000000004015f558>] handle_interruption+0x9a8/0x9d0                    =
      =20
                                                                         =
      =20
timer_interrupt(CPU 2): delayed! cycles 801E0D93 rem 857ED  next/now =
29F15117C9C
INFO: rcu_sched detected stalls on CPUs/tasks: { 1} (detected by 3, =
t=3D6007 jiff)
Task dump for CPU 1:                                                     =
      =20
kworker/1:1     R  running task        0    58      2 0x00000004         =
      =20
Workqueue: events_freezable_power_ disk_events_workfn                    =
      =20
Backtrace:                                                               =
      =20
 [<00000000401a349c>] worker_thread+0x494/0x628                          =
      =20
 [<00000000401ab56c>] kthread+0x144/0x178                                =
      =20
 [<000000004014a020>] end_fault_vector+0x20/0x28                         =
      =20
 [<000000004014a0c0>] _switch_to_ret+0x0/0xf40                           =
      =20

....

Boot with following additional patch:

+	/* Provide extra entries in case of split.  */
+	nents +=3D 8;
+	if (nents > SCSI_MAX_SG_SEGMENTS)
+		nents =3D SCSI_MAX_SG_SEGMENTS;
+

Main Menu: Enter command or menu > bo                                    =
      =20
Interact with IPL (Y, N, or Cancel)?> n                                  =
      =20
                                                                         =
      =20
Booting...                                                               =
      =20
Boot IO Dependent Code (IODC) revision 2                                 =
      =20
                                                                         =
      =20
                                                                         =
      =20
HARD Booted.                                                             =
      =20
palo ipl 1.95 root@mkhppa3 Thu Apr 17 20:15:17 UTC 2014                  =
      =20
                                                                         =
      =20
Partition Start(MB) End(MB) Id Type                                      =
      =20
1               1      62   f0 Palo                                      =
      =20
2              63     305   83 ext2                                      =
      =20
3             306    2259   82 swap                                      =
      =20
4            2260   70007   83 ext2                                      =
      =20
                                                                         =
      =20
PALO(F0) partition contains:                                             =
      =20
    0/vmlinux64 3248926(9024320) bytes @ 0x48000                         =
      =20
                                                                         =
      =20
Command line for kernel: 'root=3DLABEL=3DROOT console=3DttyS0 HOME=3D/ =
rootfstype=3Dext3 '
Selected kernel: /vmlinuz from partition 2                               =
      =20
Selected ramdisk: /initrd.img from partition 2                           =
      =20
uncompressing Linux =
kernel.....................................................2
.                                                                        =
      =20
ELF64 executable                                                         =
      =20
Entry 00100000 first 00100000 n 2                                        =
      =20
Segment 0 load 00100000 size 206912 mediaptr 0x1000                      =
      =20
Segment 1 load 00133000 size 8008536 mediaptr 0x34000                    =
      =20
Loading ramdisk 10406466 bytes @ 3e201000...                             =
      =20
Branching to kernel entry point 0x00100000.  If this is the last         =
      =20
message you see, you may need to switch your console.  This is           =
      =20
a common symptom -- search the FAQ and mailing list at parisc-linux.org  =
      =20
                                                                         =
      =20
Linux version 4.2.0-rc2+ (dave@atlas) (gcc version 4.9.3 (GCC) ) #25 SMP =
Wed Fe6
unwind_init: start =3D 0x4077cd10, end =3D 0x407bbe30, entries =3D 16146 =
            =20
FP[0] enabled: Rev 1 Model 20                                            =
      =20
The 64-bit Kernel has started...                                         =
      =20
Default page size is 4KB.                                                =
      =20
bootconsole [ttyB0] enabled                                              =
      =20
Initialized PDC Console for debugging.                                   =
      =20
Determining PDC firmware type: 64 bit PAT.                               =
      =20
model 000088b0 00000491 00000000 00000002 56bb5389fb0d1ec0 100000f0 =
00000008 002
vers  00000302                                                           =
      =20
CPUID vers 20 rev 5 (0x00000285)                                         =
      =20
capabilities 0x35                                                        =
      =20
model 9000/785/C8000                                                     =
      =20
parisc_cache_init: Only equivalent aliasing supported!                   =
      =20
Memory Ranges:                                                           =
      =20
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB       =
      =20
 1) Start 0x0000000100000000 End 0x00000002ffdfffff Size   8190 MB       =
      =20
 2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB       =
      =20
Total Memory: 12286 MB                                                   =
      =20
initrd: 7e201000-7ebeda42                                                =
      =20
initrd: reserving 3e201000-3ebeda42 (mem_max 2ffe00000)                  =
      =20
PERCPU: Embedded 18 pages/cpu @0000000042e61000 s34240 r8192 d31296 =
u73728     =20
SMP: bootstrap CPU ID is 0                                               =
      =20
Built 3 zonelists in Zone order, mobility grouping on.  Total pages: =
3102215   =20
Kernel command line: root=3DLABEL=3DROOT console=3DttyS0 HOME=3D/ =
rootfstype=3Dext3 clockz
log_buf_len individual max cpu contribution: 4096 bytes                  =
      =20
log_buf_len total cpu_extra contributions: 126976 bytes                  =
      =20
log_buf_len min size: 131072 bytes                                       =
      =20
log_buf_len: 262144 bytes                                                =
      =20
early log buf free: 127792(97%)                                          =
      =20
PID hash table entries: 4096 (order: 3, 32768 bytes)                     =
      =20
Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)     =
      =20
Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)       =
      =20
Sorting __ex_table...                                                    =
      =20
Memory: 12338524K/12580864K available (4816K kernel code, 1587K rwdata, =
931K ro)
virtual kernel memory layout:                                            =
      =20
   vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)         =
      =20
   memory  : 0x0000000040000000 - 0x0000004140000000   (266240 MB)       =
      =20
     .init : 0x0000000040100000 - 0x0000000040147000   ( 284 kB)         =
      =20
     .data : 0x00000000405fb000 - 0x0000000040870c10   (2519 kB)         =
      =20
     .text : 0x0000000040147000 - 0x00000000405fb000   (4816 kB)         =
      =20
Hierarchical RCU implementation.                                         =
      =20
        Build-time adjustment of leaf fanout to 64.                      =
      =20
NR_IRQS:128                                                              =
      =20
clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, =
max_idles
Console: colour dummy device 160x64                                      =
      =20
------------------------                                                 =
      =20
| Locking API testsuite:                                                 =
      =20
=
--------------------------------------------------------------------------=
--   =20
                                 | spin |wlock |rlock |mutex | wsem | =
rsem |   =20
  =
--------------------------------------------------------------------------=
   =20
                     A-A deadlock:failed|failed|  ok  =
|failed|failed|failed|   =20
                 A-B-B-A deadlock:failed|failed|  ok  =
|failed|failed|failed|   =20
             A-B-B-C-C-A deadlock:failed|failed|  ok  =
|failed|failed|failed|   =20
             A-B-C-A-B-C deadlock:failed|failed|  ok  =
|failed|failed|failed|   =20
         A-B-B-C-C-D-D-A deadlock:failed|failed|  ok  =
|failed|failed|failed|   =20
         A-B-C-D-B-D-D-A deadlock:failed|failed|  ok  =
|failed|failed|failed|   =20
         A-B-C-D-B-C-D-A deadlock:failed|failed|  ok  =
|failed|failed|failed|   =20
                    double unlock:failed|failed|failed|  ok  =
|failed|failed|   =20
                  initialize =
held:failed|failed|failed|failed|failed|failed|   =20
                 bad unlock order:  ok  |  ok  |  ok  |  ok  |  ok  |  =
ok  |   =20
  =
--------------------------------------------------------------------------=
   =20
              recursive read-lock:             |  ok  |             =
|failed|   =20
           recursive read-lock #2:             |  ok  |             =
|failed|   =20
            mixed read-write-lock:             |failed|             =
|failed|   =20
            mixed write-read-lock:             |failed|             =
|failed|   =20
  =
--------------------------------------------------------------------------=
   =20
     hard-irqs-on + irq-safe-A/12:failed|failed|  ok  |                  =
      =20
     soft-irqs-on + irq-safe-A/12:failed|failed|  ok  |                  =
      =20
     hard-irqs-on + irq-safe-A/21:failed|failed|  ok  |                  =
      =20
     soft-irqs-on + irq-safe-A/21:failed|failed|  ok  |                  =
      =20
       sirq-safe-A =3D> hirqs-on/12:failed|failed|  ok  |                =
        =20
       sirq-safe-A =3D> hirqs-on/21:failed|failed|  ok  |                =
        =20
         hard-safe-A + irqs-on/12:failed|failed|  ok  |                  =
      =20
         soft-safe-A + irqs-on/12:failed|failed|  ok  |                  =
      =20
         hard-safe-A + irqs-on/21:failed|failed|  ok  |                  =
      =20
         soft-safe-A + irqs-on/21:failed|failed|  ok  |                  =
      =20
    hard-safe-A + unsafe-B #1/123:failed|failed|  ok  |                  =
      =20
    soft-safe-A + unsafe-B #1/123:failed|failed|  ok  |                  =
      =20
    hard-safe-A + unsafe-B #1/132:failed|failed|  ok  |                  =
      =20
    soft-safe-A + unsafe-B #1/132:failed|failed|  ok  |                  =
      =20
    hard-safe-A + unsafe-B #1/213:failed|failed|  ok  |                  =
      =20
    soft-safe-A + unsafe-B #1/213:failed|failed|  ok  |                  =
      =20
    hard-safe-A + unsafe-B #1/231:failed|failed|  ok  |                  =
      =20
    soft-safe-A + unsafe-B #1/231:failed|failed|  ok  |                  =
      =20
    hard-safe-A + unsafe-B #1/312:failed|failed|  ok  |                  =
      =20
    soft-safe-A + unsafe-B #1/312:failed|failed|  ok  |                  =
      =20
    hard-safe-A + unsafe-B #1/321:failed|failed|  ok  |                  =
      =20
    soft-safe-A + unsafe-B #1/321:failed|failed|  ok  |                  =
      =20
    hard-safe-A + unsafe-B #2/123:failed|failed|  ok  |                  =
      =20
    soft-safe-A + unsafe-B #2/123:failed|failed|  ok  |                  =
      =20
    hard-safe-A + unsafe-B #2/132:failed|failed|  ok  |                  =
      =20
    soft-safe-A + unsafe-B #2/132:failed|failed|  ok  |                  =
      =20
    hard-safe-A + unsafe-B #2/213:failed|failed|  ok  |                  =
      =20
    soft-safe-A + unsafe-B #2/213:failed|failed|  ok  |                  =
      =20
    hard-safe-A + unsafe-B #2/231:failed|failed|  ok  |                  =
      =20
    soft-safe-A + unsafe-B #2/231:failed|failed|  ok  |                  =
      =20
    hard-safe-A + unsafe-B #2/312:failed|failed|  ok  |                  =
      =20
    soft-safe-A + unsafe-B #2/312:failed|failed|  ok  |                  =
      =20
    hard-safe-A + unsafe-B #2/321:failed|failed|  ok  |                  =
      =20
    soft-safe-A + unsafe-B #2/321:failed|failed|  ok  |                  =
      =20
      hard-irq lock-inversion/123:failed|failed|  ok  |                  =
      =20
      soft-irq lock-inversion/123:failed|failed|  ok  |                  =
      =20
      hard-irq lock-inversion/132:failed|failed|  ok  |                  =
      =20
      soft-irq lock-inversion/132:failed|failed|  ok  |                  =
      =20
      hard-irq lock-inversion/213:failed|failed|  ok  |                  =
      =20
      soft-irq lock-inversion/213:failed|failed|  ok  |                  =
      =20
      hard-irq lock-inversion/231:failed|failed|  ok  |                  =
      =20
      soft-irq lock-inversion/231:failed|failed|  ok  |                  =
      =20
      hard-irq lock-inversion/312:failed|failed|  ok  |                  =
      =20
      soft-irq lock-inversion/312:failed|failed|  ok  |                  =
      =20
      hard-irq lock-inversion/321:failed|failed|  ok  |                  =
      =20
      soft-irq lock-inversion/321:failed|failed|  ok  |                  =
      =20
      hard-irq read-recursion/123:  ok  |                                =
      =20
      soft-irq read-recursion/123:  ok  |                                =
      =20
      hard-irq read-recursion/132:  ok  |                                =
      =20
      soft-irq read-recursion/132:  ok  |                                =
      =20
      hard-irq read-recursion/213:  ok  |                                =
      =20
      soft-irq read-recursion/213:  ok  |                                =
      =20
      hard-irq read-recursion/231:  ok  |                                =
      =20
      soft-irq read-recursion/231:  ok  |                                =
      =20
      hard-irq read-recursion/312:  ok  |                                =
      =20
      soft-irq read-recursion/312:  ok  |                                =
      =20
      hard-irq read-recursion/321:  ok  |                                =
      =20
      soft-irq read-recursion/321:  ok  |                                =
      =20
  =
--------------------------------------------------------------------------=
   =20
  | Wound/wait tests |                                                   =
      =20
  ---------------------                                                  =
      =20
                  ww api failures:  ok  |  ok  |  ok  |                  =
      =20
               ww contexts mixing:failed|  ok  |                         =
      =20
             finishing ww context:  ok  |  ok  |  ok  |  ok  |           =
      =20
               locking mismatches:  ok  |  ok  |  ok  |                  =
      =20
                 EDEADLK handling:  ok  |  ok  |  ok  |  ok  |  ok  |  =
ok  |  o|
           spinlock nest unlocked:failed|                                =
      =20
  -----------------------------------------------------                  =
      =20
                                 |block | try  |context|                 =
      =20
  -----------------------------------------------------                  =
      =20
                          context:failed|  ok  |  ok  |                  =
      =20
                              try:failed|  ok  |failed|                  =
      =20
                            block:failed|  ok  |failed|                  =
      =20
                         spinlock:failed|  ok  |failed|                  =
      =20
--------------------------------------------------------                 =
      =20
153 out of 253 testcases failed, as expected. |                          =
      =20
----------------------------------------------------                     =
      =20
Calibrating delay loop... 1993.93 BogoMIPS (lpj=3D9969664)               =
        =20
pid_max: default: 32768 minimum: 301                                     =
      =20
Mount-cache hash table entries: 32768 (order: 6, 262144 bytes)           =
      =20
Mountpoint-cache hash table entries: 32768 (order: 6, 262144 bytes)      =
      =20
Brought up 1 CPUs                                                        =
      =20
devtmpfs: initialized                                                    =
      =20
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, =
max_idle_ns: 191s
atomic64_test: passed                                                    =
      =20
NET: Registered protocol family 16                                       =
      =20
Searching for devices...                                                 =
      =20
Found devices:                                                           =
      =20
1. Crestone Peak Fast? at 0xfffffffffe780000 [128] { 0, 0x0, 0x88b, =
0x00004 }  =20
2. Crestone Peak Fast? at 0xfffffffffe781000 [129] { 0, 0x0, 0x88b, =
0x00004 }  =20
3. Crestone Peak Fast? at 0xfffffffffe798000 [152] { 0, 0x0, 0x88b, =
0x00004 }  =20
4. Crestone Peak Fast? at 0xfffffffffe799000 [153] { 0, 0x0, 0x88b, =
0x00004 }  =20
5. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0b6, 0x00009 }           =
      =20
6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, =
0x0000c }=20
7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, =
0x0000a }  =20
8. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, =
0x0000a }  =20
9. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, =
0x0000a }  =20
10. Quicksilver AGP Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x784, =
0x0000}
11. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, =
0x000c0 }  =20
12. Crestone Peak Fast? Core RS-232 at 0xfffffff0f05e0000 [17] { 10, =
0x0, 0x077}
13. Crestone Peak Fast? Core RS-232 at 0xfffffff0f05e2000 [18] { 10, =
0x0, 0x077}
Enabling PDC_PAT chassis codes support v0.05                             =
      =20
Releasing cpu 1 now, hpa=3Dfffffffffe781000                              =
        =20
FP[1] enabled: Rev 1 Model 20                                            =
      =20
Releasing cpu 2 now, hpa=3Dfffffffffe798000                              =
        =20
FP[2] enabled: Rev 1 Model 20                                            =
      =20
Releasing cpu 3 now, hpa=3Dfffffffffe799000                              =
        =20
FP[3] enabled: Rev 1 Model 20                                            =
      =20
CPU(s): 4 out of 4 PA8800 (Mako) at 1000.000000 MHz online               =
      =20
Setting cache flush threshold to 32768 kB                                =
      =20
Setting TLB flush threshold to 1188 kB                                   =
      =20
SBA found Pluto 2.3 at 0xfffffffffed00000                                =
      =20
Mercury version TR3.2 (0x32) found at 0xfffffffffed20000                 =
      =20
LBA: lmmio_space [0xffffffff80000000-0xffffffff9fffffff] - new           =
      =20
LBA 0:0: PCI host bridge to bus 0000:00                                  =
      =20
pci_bus 0000:00: root bus resource [io  0x0000-0xffff]                   =
      =20
pci_bus 0000:00: root bus resource [mem =
0xffffffff80000000-0xffffffff9fffffff] )
pci_bus 0000:00: root bus resource [mem =
0xffffff0000000000-0xffffff0fffffffff] =20
pci_bus 0000:00: root bus resource [bus 00-07]                           =
      =20
Mercury version TR3.2 (0x32) found at 0xfffffffffed24000                 =
      =20
LBA 0:2: PCI host bridge to bus 0000:40                                  =
      =20
pci_bus 0000:40: root bus resource [io  0x10000-0x1ffff] (bus address =
[0x0000-0)
pci_bus 0000:40: root bus resource [mem =
0xffffffffa0000000-0xffffffffafffffff] )
pci_bus 0000:40: root bus resource [mem =
0xffffff2000000000-0xffffff2fffffffff] =20
pci_bus 0000:40: root bus resource [bus 40-47]                           =
      =20
Mercury version TR3.2 (0x32) found at 0xfffffffffed26000                 =
      =20
LBA 0:3: PCI host bridge to bus 0000:60                                  =
      =20
pci_bus 0000:60: root bus resource [io  0x20000-0x2ffff] (bus address =
[0x0000-0)
pci_bus 0000:60: root bus resource [mem =
0xffffffffb0000000-0xffffffffbfffffff] )
pci_bus 0000:60: root bus resource [mem =
0xffffff3000000000-0xffffff3fffffffff] =20
pci_bus 0000:60: root bus resource [bus 60-67]                           =
      =20
Quicksilver version TR1.0 (0x10) found at 0xfffffffffed28000             =
      =20
LBA: lmmio_space [0xffffffffc0000000-0xffffffffdfffffff] - new           =
      =20
LBA 0:4: PCI host bridge to bus 0000:80                                  =
      =20
pci_bus 0000:80: root bus resource [io  0x30000-0x3ffff] (bus address =
[0x0000-0)
pci_bus 0000:80: root bus resource [mem =
0xffffffffc0000000-0xffffffffdfffffff] )
pci_bus 0000:80: root bus resource [mem =
0xffffff4000000000-0xffffff4fffffffff] =20
pci_bus 0000:80: root bus resource [bus 80-87]                           =
      =20
powersw: Soft power switch at 0xfffffff0f042e278 enabled.                =
      =20
vgaarb: setting as boot device: PCI:0000:80:00.0                         =
      =20
vgaarb: device added: =
PCI:0000:80:00.0,decodes=3Dio+mem,owns=3Dio+mem,locks=3Dnone   =20
vgaarb: loaded                                                           =
      =20
vgaarb: bridge control possible 0000:80:00.0                             =
      =20
SCSI subsystem initialized                                               =
      =20
NET: Registered protocol family 2                                        =
      =20
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)     =
      =20
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)             =
      =20
TCP: Hash tables configured (established 131072 bind 65536)              =
      =20
UDP hash table entries: 8192 (order: 6, 262144 bytes)                    =
      =20
UDP-Lite hash table entries: 8192 (order: 6, 262144 bytes)               =
      =20
NET: Registered protocol family 1                                        =
      =20
RPC: Registered named UNIX socket transport module.                      =
      =20
RPC: Registered udp transport module.                                    =
      =20
RPC: Registered tcp transport module.                                    =
      =20
RPC: Registered tcp NFSv4.1 backchannel transport module.                =
      =20
Trying to unpack rootfs image as initramfs...                            =
      =20
Freeing initrd memory: 10160K (000000007e201000 - 000000007ebed000)      =
      =20
Performance monitoring counters enabled for Crestone Peak Fast?          =
      =20
futex hash table entries: 8192 (order: 7, 524288 bytes)                  =
      =20
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)     =
      =20
io scheduler noop registered                                             =
      =20
io scheduler deadline registered                                         =
      =20
io scheduler cfq registered (default)                                    =
      =20
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled                 =
      =20
console [ttyS0] disabled                                                 =
      =20
17: ttyS0 at MMIO 0xfffffff0f05e0800 (irq =3D 76, base_baud =3D 115200) =
is a 16550A=20
console [ttyS0] enabled                                                  =
      =20
console [ttyS0] enabled                                                  =
      =20
bootconsole [ttyB0] disabled                                             =
      =20
bootconsole [ttyB0] disabled                                             =
      =20
18: ttyS1 at MMIO 0xfffffff0f05e2800 (irq =3D 77, base_baud =3D 115200) =
is a 16550A=20
Linux agpgart interface v0.103                                           =
      =20
brd: module loaded                                                       =
      =20
sata_sil24 0000:00:01.0: Applying completion IRQ loss on PCI-X errata =
fix      =20
scsi host0: sata_sil24                                                   =
      =20
scsi host1: sata_sil24                                                   =
      =20
scsi host2: sata_sil24                                                   =
      =20
scsi host3: sata_sil24                                                   =
      =20
ata1: SATA max UDMA/100 host m128@0xffffffff80088000 port =
0xffffffff80080000 ir6
ata2: SATA max UDMA/100 host m128@0xffffffff80088000 port =
0xffffffff80082000 ir6
ata3: SATA max UDMA/100 host m128@0xffffffff80088000 port =
0xffffffff80084000 ir6
ata4: SATA max UDMA/100 host m128@0xffffffff80088000 port =
0xffffffff80086000 ir6
sil680: 133MHz clock.                                                    =
      =20
scsi host4: pata_sil680                                                  =
      =20
scsi host5: pata_sil680                                                  =
      =20
ata5: PATA max UDMA/133 cmd 0x26158 ctl 0x26164 bmdma 0x26140 irq 72     =
      =20
ata6: PATA max UDMA/133 cmd 0x26150 ctl 0x26160 bmdma 0x26148 irq 72     =
      =20
HP SDC: No SDC found.                                                    =
      =20
HP SDC MLC: Registering the System Domain Controller's HIL MLC.          =
      =20
HP SDC MLC: Request for raw HIL ISR hook denied                          =
      =20
mousedev: PS/2 mouse device common for all mice                          =
      =20
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0        =
      =20
hidraw: raw HID events driver (C) Jiri Kosina                            =
      =20
rtc-generic rtc-generic: setting system clock to 2016-02-24 23:08:03 UTC =
(14563)
ata1: SATA link down (SStatus 0 SControl 0)                              =
      =20
ata2: SATA link down (SStatus 0 SControl 0)                              =
      =20
ata3: SATA link down (SStatus 0 SControl 0)                              =
      =20
ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 0)                     =
      =20
ata4.00: ATA-9: ST3000DM001-1ER166, CC25, max UDMA/133                   =
      =20
ata4.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32)            =
      =20
ata4.00: configured for UDMA/100                                         =
      =20
scsi 3:0:0:0: Direct-Access     ATA      ST3000DM001-1ER1 CC25 PQ: 0 =
ANSI: 5   =20
ata6.00: ATAPI: HL-DT-STDVD+-RW GSA-H21L, 1.04, max UDMA/44              =
      =20
ata6.00: configured for UDMA/44                                          =
      =20
scsi 5:0:0:0: CD-ROM            HL-DT-ST DVD+-RW GSA-H21L 1.04 PQ: 0 =
ANSI: 5   =20
Freeing unused kernel memory: 284K (0000000040100000 - 0000000040147000) =
      =20
Loading, please wait...                                                  =
      =20
starting versionrandom: systemd-udevd urandom read with 119 bits of =
entropy avae
 228                                                                     =
      =20
e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI         =
      =20
e1000: Copyright (c) 1999-2006 Intel Corporation.                        =
      =20
sd 3:0:0:0: [sda] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB) =
      =20
random: nonblocking pool is initialized                                  =
      =20
sd 3:0:0:0: [sda] 4096-byte physical blocks                              =
      =20
Fusion MPT base driver 3.04.20                                           =
      =20
Copyright (c) 1999-2008 LSI Corporation                                  =
      =20
sd 3:0:0:0: [sda] Write Protect is off                                   =
      =20
sr 5:0:0:0: [sr0] scsi3-mmc drive: 48x/48x writer cd/rw xa/form2 cdda =
tray     =20
cdrom: Uniform CD-ROM driver Revision: 3.20                              =
      =20
sd 3:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't =
support DPA
Fusion MPT SPI Host driver 3.04.20                                       =
      =20
usbcore: registered new interface driver usbfs                           =
      =20
usbcore: registered new interface driver hub                             =
      =20
usbcore: registered new device driver usb                                =
      =20
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver               =
      =20
mptbase: ioc0: Initiating bringup                                        =
      =20
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver                   =
      =20
e1000 0000:60:03.0 eth0: (PCI:33MHz:32-bit) 00:11:0a:31:8a:77            =
      =20
e1000 0000:60:03.0 eth0: Intel(R) PRO/1000 Network Connection            =
      =20
ehci-pci: EHCI PCI platform driver                                       =
      =20
ehci-pci 0000:60:01.2: EHCI Host Controller                              =
      =20
ehci-pci 0000:60:01.2: new USB bus registered, assigned bus number 1     =
      =20
ehci-pci 0000:60:01.2: irq 71, io mem 0xffffffffb00a1000                 =
      =20
 sda: sda1                                                               =
      =20
ehci-pci 0000:60:01.2: USB 2.0 started, EHCI 0.95                        =
      =20
usb usb1: New USB device found, idVendor=3D1d6b, idProduct=3D0002        =
          =20
usb usb1: New USB device strings: Mfr=3D3, Product=3D2, SerialNumber=3D1 =
            =20
usb usb1: Product: EHCI Host Controller                                  =
      =20
usb usb1: Manufacturer: Linux 4.2.0-rc2+ ehci_hcd                        =
      =20
usb usb1: SerialNumber: 0000:60:01.2                                     =
      =20
hub 1-0:1.0: USB hub found                                               =
      =20
hub 1-0:1.0: 5 ports detected                                            =
      =20
sd 3:0:0:0: [sda] Attached SCSI disk                                     =
      =20
ohci-pci: OHCI PCI platform driver                                       =
      =20
ohci-pci 0000:60:01.0: OHCI PCI host controller                          =
      =20
ohci-pci 0000:60:01.0: new USB bus registered, assigned bus number 2     =
      =20
ohci-pci 0000:60:01.0: irq 69, io mem 0xffffffffb00a3000                 =
      =20
usb usb2: New USB device found, idVendor=3D1d6b, idProduct=3D0001        =
          =20
usb usb2: New USB device strings: Mfr=3D3, Product=3D2, SerialNumber=3D1 =
            =20
usb usb2: Product: OHCI PCI host controller                              =
      =20
usb usb2: Manufacturer: Linux 4.2.0-rc2+ ohci_hcd                        =
      =20
usb usb2: SerialNumber: 0000:60:01.0                                     =
      =20
hub 2-0:1.0: USB hub found                                               =
      =20
hub 2-0:1.0: 3 ports detected                                            =
      =20
ohci-pci 0000:60:01.1: OHCI PCI host controller                          =
      =20
ohci-pci 0000:60:01.1: new USB bus registered, assigned bus number 3     =
      =20
ohci-pci 0000:60:01.1: irq 70, io mem 0xffffffffb00a2000                 =
      =20
ioc0: LSI53C1030 B2: Capabilities=3D{Initiator,Target}                   =
        =20
usb usb3: New USB device found, idVendor=3D1d6b, idProduct=3D0001        =
          =20
usb usb3: New USB device strings: Mfr=3D3, Product=3D2, SerialNumber=3D1 =
            =20
usb usb3: Product: OHCI PCI host controller                              =
      =20
usb usb3: Manufacturer: Linux 4.2.0-rc2+ ohci_hcd                        =
      =20
usb usb3: SerialNumber: 0000:60:01.1                                     =
      =20
hub 3-0:1.0: USB hub found                                               =
      =20
hub 3-0:1.0: 2 ports detected                                            =
      =20
scsi host6: ioc0: LSI53C1030 B2, FwRev=3D01032341h, Ports=3D1, MaxQ=3D255,=
 IRQ=3D67    =20
scsi 6:0:0:0: Direct-Access     HP 73.4G ST373207LW       HPC1 PQ: 0 =
ANSI: 3   =20
scsi target6:0:0: Beginning Domain Validation                            =
      =20
scsi target6:0:0: Ending Domain Validation                               =
      =20
scsi target6:0:0: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW =
PCOMP (6.2)
sd 6:0:0:0: [sdb] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)  =
      =20
scsi 6:0:2:0: Direct-Access     HP 73.4G ST373207LW       HPC1 PQ: 0 =
ANSI: 3   =20
scsi target6:0:2: Beginning Domain Validation                            =
      =20
scsi target6:0:2: Ending Domain Validation                               =
      =20
scsi target6:0:2: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI WRFLOW =
PCOMP (6.2)
sd 6:0:2:0: [sdc] 143374738 512-byte logical blocks: (73.4 GB/68.3 GiB)  =
      =20
sd 6:0:2:0: [sdc] Write Protect is off                                   =
      =20
sd 6:0:2:0: [sdc] Write cache: enabled, read cache: enabled, supports =
DPO and FA
sd 6:0:2:0: [sdc] Attached SCSI disk                                     =
      =20
sd 6:0:0:0: [sdb] Write Protect is off                                   =
      =20
sd 6:0:0:0: [sdb] Write cache: enabled, read cache: enabled, supports =
DPO and FA
mptbase: ioc1: Initiating bringup                                        =
      =20
ioc1: LSI53C1030 B2: Capabilities=3D{Initiator,Target}                   =
        =20
scsi host7: ioc1: LSI53C1030 B2, FwRev=3D01032341h, Ports=3D1, MaxQ=3D255,=
 IRQ=3D68    =20
 sdb: sdb1 sdb2 sdb3 sdb4                                                =
      =20
sd 6:0:0:0: [sdb] Attached SCSI disk                                     =
      =20
blk_rq_map_sg: merge bug: 30 29, extra_len 0, dma_drain 0                =
      =20
check_bvec: dump bvec for 000000007c799978(f:24490000, t:1)              =
      =20
            0: 0 4096 254607 000000007e743880                            =
      =20
            1: 0 4096 254608 000000007e743880                            =
      =20
            2: 0 4096 254609 000000007e743880                            =
      =20
            3: 0 4096 254610 000000007e743880                            =
      =20
            4: 0 4096 254611 000000007e743880                            =
      =20
            5: 0 4096 254612 000000007e743880                            =
      =20
            6: 0 4096 254613 000000007e743880                            =
      =20
            7: 0 4096 254614 000000007e743880                            =
      =20
            8: 0 4096 254615 000000007e743880                            =
      =20
            9: 0 4096 254616 000000007e743880                            =
      =20
           10: 0 4096 254617 000000007e743880                            =
      =20
           11: 0 4096 254618 000000007e743880                            =
      =20
           12: 0 4096 254619 000000007e743880                            =
      =20
           13: 0 4096 254620 000000007e743880                            =
      =20
           14: 0 4096 254621 000000007e743880                            =
      =20
           15: 0 4096 254622 000000007e743880                            =
      =20
           16: 0 4096 254623 000000007e743880                            =
      =20
           17: 0 4096 254624 000000007e743880                            =
      =20
           18: 0 4096 254625 000000007e743880                            =
      =20
           19: 0 4096 254626 000000007e743880                            =
      =20
           20: 0 4096 247681 000000007e743880                            =
      =20
           21: 0 4096 247680 000000007e743880                            =
      =20
           22: 0 4096 247775 000000007e743880                            =
      =20
           23: 0 4096 247774 000000007e743880                            =
      =20
           24: 0 4096 247361 000000007e743880                            =
      =20
           25: 0 4096 247360 000000007e743880                            =
      =20
           26: 0 4096 247583 000000007e743880                            =
      =20
           27: 0 4096 247582 000000007e743880                            =
      =20
           28: 0 4096 247581 000000007e743880                            =
      =20
           29: 0 4096 247580 000000007e743880                            =
      =20
           30: 0 4096 247579 000000007e743880                            =
      =20
           31: 0 4096 247578 000000007e743880                            =
      =20
           32: 0 4096 247577 000000007e743880                            =
      =20
           33: 0 4096 247576 000000007e743880                            =
      =20
           34: 0 4096 247575 000000007e743880                            =
      =20
           35: 0 4096 247574 000000007e743880                            =
      =20
           36: 0 4096 247573 000000007e743880                            =
      =20
           37: 0 4096 247572 000000007e743880                            =
      =20
           38: 0 4096 247571 000000007e743880                            =
      =20
           39: 0 4096 255664 000000007e743880                            =
      =20
           40: 0 4096 255666 000000007e743880                            =
      =20
           41: 0 4096 255665 000000007e743880                            =
      =20
           42: 0 4096 247503 000000007e743880                            =
      =20
           43: 0 4096 247502 000000007e743880                            =
      =20
           44: 0 4096 258438 000000007e743880                            =
      =20
           45: 0 4096 247501 000000007e743880                            =
      =20
           46: 0 4096 247498 000000007e743880                            =
      =20
           47: 0 4096 247497 000000007e743880                            =
      =20
timer_interrupt(CPU 2): delayed! cycles 7E6B87C2 rem 89B0BE  next/now =
1BB756E4E6
blk_rq_map_sg: merge bug: 3 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e53c5f0(f:24490000, t:1)              =
      =20
            0: 0 4096 245852 000000007e2c4c40                            =
      =20
            1: 0 4096 245853 000000007e2c4c40                            =
      =20
            2: 0 4096 245854 000000007e2c4c40                            =
      =20
            3: 0 4096 245855 000000007e2c4c40                            =
      =20
            4: 0 4096 245856 000000007e2c4c40                            =
      =20
            5: 0 4096 245857 000000007e2c4c40                            =
      =20
            6: 0 4096 245858 000000007e2c4c40                            =
      =20
            7: 0 4096 245859 000000007e2c4c40                            =
      =20
            8: 0 4096 245860 000000007e2c4c40                            =
      =20
            9: 0 4096 245861 000000007e2c4c40                            =
      =20
           10: 0 4096 245862 000000007e2c4c40                            =
      =20
           11: 0 4096 245863 000000007e2c4c40                            =
      =20
           12: 0 4096 245864 000000007e2c4c40                            =
      =20
           13: 0 4096 245865 000000007e2c4c40                            =
      =20
           14: 0 4096 245866 000000007e2c4c40                            =
      =20
           15: 0 4096 245867 000000007e2c4c40                            =
      =20
           16: 0 4096 245868 000000007e2c4c40                            =
      =20
           17: 0 4096 245869 000000007e2c4c40                            =
      =20
           18: 0 4096 245870 000000007e2c4c40                            =
      =20
           19: 0 4096 245871 000000007e2c4c40                            =
      =20
           20: 0 4096 245872 000000007e2c4c40                            =
      =20
           21: 0 4096 245873 000000007e2c4c40                            =
      =20
           22: 0 4096 245874 000000007e2c4c40                            =
      =20
           23: 0 4096 245875 000000007e2c4c40                            =
      =20
           24: 0 4096 245876 000000007e2c4c40                            =
      =20
           25: 0 4096 245877 000000007e2c4c40                            =
      =20
           26: 0 4096 245878 000000007e2c4c40                            =
      =20
           27: 0 4096 245879 000000007e2c4c40                            =
      =20
           28: 0 4096 245880 000000007e2c4c40                            =
      =20
           29: 0 4096 245881 000000007e2c4c40                            =
      =20
           30: 0 4096 245882 000000007e2c4c40                            =
      =20
           31: 0 4096 245883 000000007e2c4c40                            =
      =20
           32: 0 4096 245884 000000007e2c4c40                            =
      =20
           33: 0 4096 245885 000000007e2c4c40                            =
      =20
           34: 0 4096 245886 000000007e2c4c40                            =
      =20
           35: 0 4096 245887 000000007e2c4c40                            =
      =20
           36: 0 4096 245888 000000007e2c4c40                            =
      =20
           37: 0 4096 245889 000000007e2c4c40                            =
      =20
           38: 0 4096 245890 000000007e2c4c40                            =
      =20
           39: 0 4096 245891 000000007e2c4c40                            =
      =20
           40: 0 4096 245892 000000007e2c4c40                            =
      =20
           41: 0 4096 245893 000000007e2c4c40                            =
      =20
           42: 0 4096 245894 000000007e2c4c40                            =
      =20
           43: 0 4096 245895 000000007e2c4c40                            =
      =20
           44: 0 4096 245896 000000007e2c4c40                            =
      =20
           45: 0 4096 245897 000000007e2c4c40                            =
      =20
           46: 0 4096 245898 000000007e2c4c40                            =
      =20
           47: 0 4096 245899 000000007e2c4c40                            =
      =20
timer_interrupt(CPU 0): delayed! cycles 7E810E1D rem 742A63  next/now =
1C41E74A92
blk_rq_map_sg: merge bug: 6 4, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c6a32c0(f:24490000, t:1)              =
      =20
            0: 0 4096 254802 000000007e56b100                            =
      =20
            1: 0 4096 254803 000000007e56b100                            =
      =20
            2: 0 4096 258172 000000007e56b100                            =
      =20
            3: 0 4096 258173 000000007e56b100                            =
      =20
            4: 0 4096 258174 000000007e56b100                            =
      =20
            5: 0 4096 258175 000000007e56b100                            =
      =20
            6: 0 4096 245908 000000007e56b100                            =
      =20
            7: 0 4096 245909 000000007e56b100                            =
      =20
            8: 0 4096 245910 000000007e56b100                            =
      =20
            9: 0 4096 245911 000000007e56b100                            =
      =20
           10: 0 4096 245912 000000007e56b100                            =
      =20
           11: 0 4096 245913 000000007e56b100                            =
      =20
           12: 0 4096 245914 000000007e56b100                            =
      =20
           13: 0 4096 245915 000000007e56b100                            =
      =20
           14: 0 4096 245916 000000007e56b100                            =
      =20
           15: 0 4096 245917 000000007e56b100                            =
      =20
           16: 0 4096 245918 000000007e56b100                            =
      =20
           17: 0 4096 245921 000000007e56b100                            =
      =20
           18: 0 4096 245922 000000007e56b100                            =
      =20
           19: 0 4096 245923 000000007e56b100                            =
      =20
           20: 0 4096 245924 000000007e56b100                            =
      =20
           21: 0 4096 245925 000000007e56b100                            =
      =20
           22: 0 4096 245926 000000007e56b100                            =
      =20
           23: 0 4096 245927 000000007e56b100                            =
      =20
           24: 0 4096 245928 000000007e56b100                            =
      =20
           25: 0 4096 245929 000000007e56b100                            =
      =20
           26: 0 4096 245930 000000007e56b100                            =
      =20
           27: 0 4096 245931 000000007e56b100                            =
      =20
           28: 0 4096 245932 000000007e56b100                            =
      =20
           29: 0 4096 245933 000000007e56b100                            =
      =20
           30: 0 4096 245934 000000007e56b100                            =
      =20
           31: 0 4096 245935 000000007e56b100                            =
      =20
           32: 0 4096 245936 000000007e56b100                            =
      =20
           33: 0 4096 245937 000000007e56b100                            =
      =20
           34: 0 4096 245938 000000007e56b100                            =
      =20
           35: 0 4096 245939 000000007e56b100                            =
      =20
           36: 0 4096 245940 000000007e56b100                            =
      =20
           37: 0 4096 245941 000000007e56b100                            =
      =20
           38: 0 4096 245942 000000007e56b100                            =
      =20
           39: 0 4096 245943 000000007e56b100                            =
      =20
           40: 0 4096 245944 000000007e56b100                            =
      =20
           41: 0 4096 245945 000000007e56b100                            =
      =20
           42: 0 4096 245946 000000007e56b100                            =
      =20
           43: 0 4096 245947 000000007e56b100                            =
      =20
           44: 0 4096 245948 000000007e56b100                            =
      =20
           45: 0 4096 245949 000000007e56b100                            =
      =20
           46: 0 4096 245950 000000007e56b100                            =
      =20
           47: 0 4096 245951 000000007e56b100                            =
      =20
           48: 0 4096 245952 000000007e56b100                            =
      =20
           49: 0 4096 245953 000000007e56b100                            =
      =20
           50: 0 4096 245954 000000007e56b100                            =
      =20
           51: 0 4096 245955 000000007e56b100                            =
      =20
           52: 0 4096 245956 000000007e56b100                            =
      =20
           53: 0 4096 245957 000000007e56b100                            =
      =20
           54: 0 4096 245958 000000007e56b100                            =
      =20
           55: 0 4096 245959 000000007e56b100                            =
      =20
           56: 0 4096 245960 000000007e56b100                            =
      =20
           57: 0 4096 245961 000000007e56b100                            =
      =20
           58: 0 4096 245962 000000007e56b100                            =
      =20
           59: 0 4096 245963 000000007e56b100                            =
      =20
           60: 0 4096 245964 000000007e56b100                            =
      =20
           61: 0 4096 245965 000000007e56b100                            =
      =20
           62: 0 4096 245966 000000007e56b100                            =
      =20
           63: 0 4096 245967 000000007e56b100                            =
      =20
timer_interrupt(CPU 0): delayed! cycles A6702489 rem 747777  next/now =
1CF7B2991E
blk_rq_map_sg: merge bug: 4 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c6a3010(f:24490000, t:1)              =
      =20
            0: 0 4096 245968 000000007e2c4ac0                            =
      =20
            1: 0 4096 245969 000000007e2c4ac0                            =
      =20
            2: 0 4096 245970 000000007e2c4ac0                            =
      =20
            3: 0 4096 245971 000000007e2c4ac0                            =
      =20
            4: 0 4096 245972 000000007e2c4ac0                            =
      =20
            5: 0 4096 245973 000000007e2c4ac0                            =
      =20
            6: 0 4096 245974 000000007e2c4ac0                            =
      =20
            7: 0 4096 245975 000000007e2c4ac0                            =
      =20
            8: 0 4096 245976 000000007e2c4ac0                            =
      =20
            9: 0 4096 245977 000000007e2c4ac0                            =
      =20
           10: 0 4096 245978 000000007e2c4ac0                            =
      =20
           11: 0 4096 245979 000000007e2c4ac0                            =
      =20
           12: 0 4096 245980 000000007e2c4ac0                            =
      =20
           13: 0 4096 245981 000000007e2c4ac0                            =
      =20
           14: 0 4096 245982 000000007e2c4ac0                            =
      =20
           15: 0 4096 245983 000000007e2c4ac0                            =
      =20
           16: 0 4096 245984 000000007e2c4ac0                            =
      =20
           17: 0 4096 245985 000000007e2c4ac0                            =
      =20
           18: 0 4096 245986 000000007e2c4ac0                            =
      =20
           19: 0 4096 245987 000000007e2c4ac0                            =
      =20
           20: 0 4096 245988 000000007e2c4ac0                            =
      =20
           21: 0 4096 245989 000000007e2c4ac0                            =
      =20
           22: 0 4096 245990 000000007e2c4ac0                            =
      =20
           23: 0 4096 245991 000000007e2c4ac0                            =
      =20
           24: 0 4096 245992 000000007e2c4ac0                            =
      =20
           25: 0 4096 245993 000000007e2c4ac0                            =
      =20
           26: 0 4096 245994 000000007e2c4ac0                            =
      =20
           27: 0 4096 245995 000000007e2c4ac0                            =
      =20
           28: 0 4096 245996 000000007e2c4ac0                            =
      =20
           29: 0 4096 245997 000000007e2c4ac0                            =
      =20
           30: 0 4096 245998 000000007e2c4ac0                            =
      =20
           31: 0 4096 245999 000000007e2c4ac0                            =
      =20
           32: 0 4096 246000 000000007e2c4ac0                            =
      =20
           33: 0 4096 246001 000000007e2c4ac0                            =
      =20
           34: 0 4096 246002 000000007e2c4ac0                            =
      =20
           35: 0 4096 246003 000000007e2c4ac0                            =
      =20
           36: 0 4096 246004 000000007e2c4ac0                            =
      =20
           37: 0 4096 246005 000000007e2c4ac0                            =
      =20
           38: 0 4096 246006 000000007e2c4ac0                            =
      =20
           39: 0 4096 246007 000000007e2c4ac0                            =
      =20
           40: 0 4096 246008 000000007e2c4ac0                            =
      =20
           41: 0 4096 246009 000000007e2c4ac0                            =
      =20
           42: 0 4096 246010 000000007e2c4ac0                            =
      =20
           43: 0 4096 246011 000000007e2c4ac0                            =
      =20
           44: 0 4096 246012 000000007e2c4ac0                            =
      =20
           45: 0 4096 246013 000000007e2c4ac0                            =
      =20
           46: 0 4096 246014 000000007e2c4ac0                            =
      =20
           47: 0 4096 246015 000000007e2c4ac0                            =
      =20
           48: 0 4096 246016 000000007e2c4ac0                            =
      =20
           49: 0 4096 246017 000000007e2c4ac0                            =
      =20
           50: 0 4096 246018 000000007e2c4ac0                            =
      =20
           51: 0 4096 246019 000000007e2c4ac0                            =
      =20
           52: 0 4096 246020 000000007e2c4ac0                            =
      =20
           53: 0 4096 246021 000000007e2c4ac0                            =
      =20
           54: 0 4096 246022 000000007e2c4ac0                            =
      =20
           55: 0 4096 246023 000000007e2c4ac0                            =
      =20
           56: 0 4096 246024 000000007e2c4ac0                            =
      =20
           57: 0 4096 246025 000000007e2c4ac0                            =
      =20
           58: 0 4096 246026 000000007e2c4ac0                            =
      =20
           59: 0 4096 246027 000000007e2c4ac0                            =
      =20
           60: 0 4096 246028 000000007e2c4ac0                            =
      =20
           61: 0 4096 246029 000000007e2c4ac0                            =
      =20
           62: 0 4096 246030 000000007e2c4ac0                            =
      =20
           63: 0 4096 246031 000000007e2c4ac0                            =
      =20
timer_interrupt(CPU 0): delayed! cycles A61A0938 rem 31FC48  next/now =
1DA525AC9D
blk_rq_map_sg: merge bug: 4 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c6a32c0(f:24490000, t:1)              =
      =20
            0: 0 4096 246032 000000007e56b100                            =
      =20
            1: 0 4096 246033 000000007e56b100                            =
      =20
            2: 0 4096 246034 000000007e56b100                            =
      =20
            3: 0 4096 246035 000000007e56b100                            =
      =20
            4: 0 4096 246036 000000007e56b100                            =
      =20
            5: 0 4096 246037 000000007e56b100                            =
      =20
            6: 0 4096 246038 000000007e56b100                            =
      =20
            7: 0 4096 246039 000000007e56b100                            =
      =20
            8: 0 4096 246040 000000007e56b100                            =
      =20
            9: 0 4096 246041 000000007e56b100                            =
      =20
           10: 0 4096 246042 000000007e56b100                            =
      =20
           11: 0 4096 246043 000000007e56b100                            =
      =20
           12: 0 4096 246044 000000007e56b100                            =
      =20
           13: 0 4096 246045 000000007e56b100                            =
      =20
           14: 0 4096 246046 000000007e56b100                            =
      =20
           15: 0 4096 246047 000000007e56b100                            =
      =20
           16: 0 4096 246048 000000007e56b100                            =
      =20
           17: 0 4096 246049 000000007e56b100                            =
      =20
           18: 0 4096 246050 000000007e56b100                            =
      =20
           19: 0 4096 246051 000000007e56b100                            =
      =20
           20: 0 4096 246052 000000007e56b100                            =
      =20
           21: 0 4096 246053 000000007e56b100                            =
      =20
           22: 0 4096 246054 000000007e56b100                            =
      =20
           23: 0 4096 246055 000000007e56b100                            =
      =20
           24: 0 4096 246056 000000007e56b100                            =
      =20
           25: 0 4096 246057 000000007e56b100                            =
      =20
           26: 0 4096 246058 000000007e56b100                            =
      =20
           27: 0 4096 246059 000000007e56b100                            =
      =20
           28: 0 4096 246060 000000007e56b100                            =
      =20
           29: 0 4096 246061 000000007e56b100                            =
      =20
           30: 0 4096 246062 000000007e56b100                            =
      =20
           31: 0 4096 246063 000000007e56b100                            =
      =20
           32: 0 4096 246064 000000007e56b100                            =
      =20
           33: 0 4096 246065 000000007e56b100                            =
      =20
           34: 0 4096 246066 000000007e56b100                            =
      =20
           35: 0 4096 246067 000000007e56b100                            =
      =20
           36: 0 4096 246068 000000007e56b100                            =
      =20
           37: 0 4096 246069 000000007e56b100                            =
      =20
           38: 0 4096 246070 000000007e56b100                            =
      =20
           39: 0 4096 246071 000000007e56b100                            =
      =20
           40: 0 4096 246072 000000007e56b100                            =
      =20
           41: 0 4096 246073 000000007e56b100                            =
      =20
           42: 0 4096 246074 000000007e56b100                            =
      =20
           43: 0 4096 246075 000000007e56b100                            =
      =20
           44: 0 4096 246076 000000007e56b100                            =
      =20
           45: 0 4096 246077 000000007e56b100                            =
      =20
           46: 0 4096 246078 000000007e56b100                            =
      =20
           47: 0 4096 246079 000000007e56b100                            =
      =20
           48: 0 4096 246080 000000007e56b100                            =
      =20
           49: 0 4096 246081 000000007e56b100                            =
      =20
           50: 0 4096 246082 000000007e56b100                            =
      =20
           51: 0 4096 246083 000000007e56b100                            =
      =20
           52: 0 4096 246084 000000007e56b100                            =
      =20
           53: 0 4096 246085 000000007e56b100                            =
      =20
           54: 0 4096 246086 000000007e56b100                            =
      =20
           55: 0 4096 246087 000000007e56b100                            =
      =20
           56: 0 4096 246088 000000007e56b100                            =
      =20
           57: 0 4096 246089 000000007e56b100                            =
      =20
           58: 0 4096 246090 000000007e56b100                            =
      =20
           59: 0 4096 246091 000000007e56b100                            =
      =20
           60: 0 4096 246092 000000007e56b100                            =
      =20
           61: 0 4096 246093 000000007e56b100                            =
      =20
           62: 0 4096 246094 000000007e56b100                            =
      =20
           63: 0 4096 246095 000000007e56b100                            =
      =20
timer_interrupt(CPU 0): delayed! cycles A64FC1D0 rem 94DA30  next/now =
1E52002995
Begin: Loading essential drivers ... done.                               =
      =20
Begin: Running /scripts/init-premount ... done.                          =
      =20
Begin: Mounting root file system ... Begin: Running /scripts/local-top =
... done.
Begin: Running /scripts/local-premount ... done.                         =
      =20
Begin: Will now check root file system ... fsck from util-linux 2.27.1   =
      =20
[/sbin/fsck.ext3 (1) -- /dev/sdb4] fsck.ext3 -a -C0 /dev/sdb4            =
      =20
ROOT: clean, 131346/4341760 files, 4012036/17343502 blocks               =
      =20
donekjournald starting.  Commit interval 5 seconds                       =
      =20
.                                                                        =
      =20
EXT3-fs (sdb4): mounted filesystem with writeback data mode              =
      =20
done.                                                                    =
      =20
Begin: Running /scripts/local-bottom ... done.                           =
      =20
Begin: Running /scripts/init-bottom ... done.                            =
      =20
INIT: version 2.88 booting                                               =
      =20
[info] Using makefile-style concurrent boot in runlevel S.               =
      =20
blk_rq_map_sg: merge bug: 3 2, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c7cedc0(f:24490000, t:1)              =
      =20
            0: 0 4096 19198 000000007e6e7d00                             =
      =20
            1: 0 4096 19199 000000007e6e7d00                             =
      =20
            2: 0 4096 19200 000000007e6e7d00                             =
      =20
            3: 0 4096 19201 000000007e6e7d00                             =
      =20
            4: 0 4096 19202 000000007e6e7d00                             =
      =20
            5: 0 4096 19203 000000007e6e7d00                             =
      =20
            6: 0 4096 19213 000000007e6e7d00                             =
      =20
            7: 0 4096 19214 000000007e6e7d00                             =
      =20
            8: 0 4096 19215 000000007e6e7d00                             =
      =20
            9: 0 4096 19216 000000007e6e7d00                             =
      =20
           10: 0 4096 19217 000000007e6e7d00                             =
      =20
           11: 0 4096 19218 000000007e6e7d00                             =
      =20
           12: 0 4096 19219 000000007e6e7d00                             =
      =20
           13: 0 4096 19220 000000007e6e7d00                             =
      =20
           14: 0 4096 19221 000000007e6e7d00                             =
      =20
           15: 0 4096 19222 000000007e6e7d00                             =
      =20
           16: 0 4096 19223 000000007e6e7d00                             =
      =20
           17: 0 4096 19224 000000007e6e7d00                             =
      =20
           18: 0 4096 19225 000000007e6e7d00                             =
      =20
           19: 0 4096 19226 000000007e6e7d00                             =
      =20
           20: 0 4096 19227 000000007e6e7d00                             =
      =20
           21: 0 4096 19228 000000007e6e7d00                             =
      =20
           22: 0 4096 19229 000000007e6e7d00                             =
      =20
timer_interrupt(CPU 0): delayed! cycles 3EEEC3B2 rem 3F8D4E  next/now =
1F7D374897
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c6a32c0(f:24490000, t:1)              =
      =20
            0: 0 4096 243716 000000007e700c40                            =
      =20
            1: 0 4096 243717 000000007e700c40                            =
      =20
            2: 0 4096 243718 000000007e700c40                            =
      =20
            3: 0 4096 243719 000000007e700c40                            =
      =20
            4: 0 4096 243720 000000007e700c40                            =
      =20
            5: 0 4096 243721 000000007e700c40                            =
      =20
            6: 0 4096 243722 000000007e700c40                            =
      =20
            7: 0 4096 243723 000000007e700c40                            =
      =20
            8: 0 4096 243724 000000007e700c40                            =
      =20
            9: 0 4096 243725 000000007e700c40                            =
      =20
           10: 0 4096 243726 000000007e700c40                            =
      =20
           11: 0 4096 243727 000000007e700c40                            =
      =20
           12: 0 4096 243728 000000007e700c40                            =
      =20
           13: 0 4096 243729 000000007e700c40                            =
      =20
           14: 0 4096 243730 000000007e700c40                            =
      =20
           15: 0 4096 243731 000000007e700c40                            =
      =20
           16: 0 4096 243732 000000007e700c40                            =
      =20
blk_rq_map_sg: merge bug: 3 2, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c6a3010(f:24490000, t:1)              =
      =20
            0: 0 4096 243842 000000007e700c40                            =
      =20
            1: 0 4096 243843 000000007e700c40                            =
      =20
            2: 0 4096 243844 000000007e700c40                            =
      =20
            3: 0 4096 243845 000000007e700c40                            =
      =20
            4: 0 4096 243846 000000007e700c40                            =
      =20
            5: 0 4096 243847 000000007e700c40                            =
      =20
            6: 0 4096 243848 000000007e700c40                            =
      =20
            7: 0 4096 243849 000000007e700c40                            =
      =20
            8: 0 4096 243850 000000007e700c40                            =
      =20
            9: 0 4096 243851 000000007e700c40                            =
      =20
           10: 0 4096 243852 000000007e700c40                            =
      =20
           11: 0 4096 243853 000000007e700c40                            =
      =20
           12: 0 4096 243854 000000007e700c40                            =
      =20
           13: 0 4096 243855 000000007e700c40                            =
      =20
           14: 0 4096 243856 000000007e700c40                            =
      =20
           15: 0 4096 243857 000000007e700c40                            =
      =20
           16: 0 4096 243858 000000007e700c40                            =
      =20
           17: 0 4096 243859 000000007e700c40                            =
      =20
           18: 0 4096 243860 000000007e700c40                            =
      =20
           19: 0 4096 243861 000000007e700c40                            =
      =20
           20: 0 4096 243862 000000007e700c40                            =
      =20
           21: 0 4096 243863 000000007e700c40                            =
      =20
           22: 0 4096 243864 000000007e700c40                            =
      =20
           23: 0 4096 243865 000000007e700c40                            =
      =20
           24: 0 4096 243869 000000007e700c40                            =
      =20
           25: 0 4096 243870 000000007e700c40                            =
      =20
           26: 0 4096 243871 000000007e700c40                            =
      =20
           27: 0 4096 243872 000000007e700c40                            =
      =20
           28: 0 4096 243873 000000007e700c40                            =
      =20
           29: 0 4096 243874 000000007e700c40                            =
      =20
           30: 0 4096 243875 000000007e700c40                            =
      =20
           31: 0 4096 243876 000000007e700c40                            =
      =20
timer_interrupt(CPU 0): delayed! cycles 56E0ED66 rem 24E79A  next/now =
20457CD09B
blk_rq_map_sg: merge bug: 3 2, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c7cedc0(f:24490000, t:1)              =
      =20
            0: 0 4096 243877 000000007e6e7880                            =
      =20
            1: 0 4096 243878 000000007e6e7880                            =
      =20
            2: 0 4096 243879 000000007e6e7880                            =
      =20
            3: 0 4096 243880 000000007e6e7880                            =
      =20
            4: 0 4096 243881 000000007e6e7880                            =
      =20
            5: 0 4096 243882 000000007e6e7880                            =
      =20
            6: 0 4096 243883 000000007e6e7880                            =
      =20
            7: 0 4096 243884 000000007e6e7880                            =
      =20
            8: 0 4096 243885 000000007e6e7880                            =
      =20
            9: 0 4096 243886 000000007e6e7880                            =
      =20
           10: 0 4096 243887 000000007e6e7880                            =
      =20
           11: 0 4096 243888 000000007e6e7880                            =
      =20
           12: 0 4096 243900 000000007e6e7880                            =
      =20
           13: 0 4096 243901 000000007e6e7880                            =
      =20
           14: 0 4096 243902 000000007e6e7880                            =
      =20
           15: 0 4096 243903 000000007e6e7880                            =
      =20
           16: 0 4096 243904 000000007e6e7880                            =
      =20
           17: 0 4096 243905 000000007e6e7880                            =
      =20
           18: 0 4096 243906 000000007e6e7880                            =
      =20
           19: 0 4096 243907 000000007e6e7880                            =
      =20
           20: 0 4096 243908 000000007e6e7880                            =
      =20
           21: 0 4096 243909 000000007e6e7880                            =
      =20
           22: 0 4096 243910 000000007e6e7880                            =
      =20
           23: 0 4096 243911 000000007e6e7880                            =
      =20
           24: 0 4096 243912 000000007e6e7880                            =
      =20
           25: 0 4096 243913 000000007e6e7880                            =
      =20
           26: 0 4096 243914 000000007e6e7880                            =
      =20
           27: 0 4096 243915 000000007e6e7880                            =
      =20
           28: 0 4096 243916 000000007e6e7880                            =
      =20
           29: 0 4096 243917 000000007e6e7880                            =
      =20
           30: 0 4096 243918 000000007e6e7880                            =
      =20
           31: 0 4096 243919 000000007e6e7880                            =
      =20
timer_interrupt(CPU 0): delayed! cycles 56D282B4 rem 33524C  next/now =
20A2788699
blk_rq_map_sg: merge bug: 5 4, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e2d1228(f:24490000, t:1)              =
      =20
            0: 0 4096 244139 000000007e2c4c40                            =
      =20
            1: 0 4096 244138 000000007e2c4c40                            =
      =20
            2: 0 4096 244137 000000007e2c4c40                            =
      =20
            3: 0 4096 244146 000000007e2c4c40                            =
      =20
            4: 0 4096 244147 000000007e2c4c40                            =
      =20
            5: 0 4096 244148 000000007e2c4c40                            =
      =20
            6: 0 4096 244149 000000007e2c4c40                            =
      =20
            7: 0 4096 244150 000000007e2c4c40                            =
      =20
            8: 0 4096 244151 000000007e2c4c40                            =
      =20
            9: 0 4096 244152 000000007e2c4c40                            =
      =20
           10: 0 4096 244153 000000007e2c4c40                            =
      =20
           11: 0 4096 244154 000000007e2c4c40                            =
      =20
           12: 0 4096 244155 000000007e2c4c40                            =
      =20
           13: 0 4096 244156 000000007e2c4c40                            =
      =20
           14: 0 4096 244157 000000007e2c4c40                            =
      =20
           15: 0 4096 244158 000000007e2c4c40                            =
      =20
           16: 0 4096 244159 000000007e2c4c40                            =
      =20
           17: 0 4096 244160 000000007e2c4c40                            =
      =20
           18: 0 4096 244161 000000007e2c4c40                            =
      =20
           19: 0 4096 244162 000000007e2c4c40                            =
      =20
           20: 0 4096 244163 000000007e2c4c40                            =
      =20
           21: 0 4096 244164 000000007e2c4c40                            =
      =20
           22: 0 4096 244165 000000007e2c4c40                            =
      =20
           23: 0 4096 244166 000000007e2c4c40                            =
      =20
           24: 0 4096 244167 000000007e2c4c40                            =
      =20
           25: 0 4096 244168 000000007e2c4c40                            =
      =20
           26: 0 4096 244169 000000007e2c4c40                            =
      =20
           27: 0 4096 244170 000000007e2c4c40                            =
      =20
           28: 0 4096 244171 000000007e2c4c40                            =
      =20
           29: 0 4096 244172 000000007e2c4c40                            =
      =20
           30: 0 4096 244173 000000007e2c4c40                            =
      =20
           31: 0 4096 244174 000000007e2c4c40                            =
      =20
timer_interrupt(CPU 0): delayed! cycles 56F53EB0 rem 109650  next/now =
212599DC95
[....] Starting the hotplug events dispatcher: systemd-udevdstarting =
version 228
. ok                                                                     =
      =20
[....] Synthesizing the initial hotplug events...blk_rq_map_sg: merge =
bug: 13 10
check_bvec: dump bvec for 000000007c7cec68(f:24490000, t:1)              =
      =20
            0: 0 4096 244052 000000007e56b7c0                            =
      =20
            1: 0 4096 244051 000000007e56b7c0                            =
      =20
            2: 0 4096 244050 000000007e56b7c0                            =
      =20
            3: 0 4096 244049 000000007e56b7c0                            =
      =20
            4: 0 4096 244048 000000007e56b7c0                            =
      =20
            5: 0 4096 244047 000000007e56b7c0                            =
      =20
            6: 0 4096 244046 000000007e56b7c0                            =
      =20
            7: 0 4096 244045 000000007e56b7c0                            =
      =20
            8: 0 4096 244044 000000007e56b7c0                            =
      =20
            9: 0 4096 244043 000000007e56b7c0                            =
      =20
           10: 0 4096 244042 000000007e56b7c0                            =
      =20
           11: 0 4096 243268 000000007e56b7c0                            =
      =20
           12: 0 4096 243269 000000007e56b7c0                            =
      =20
           13: 0 4096 243270 000000007e56b7c0                            =
      =20
           14: 0 4096 243271 000000007e56b7c0                            =
      =20
           15: 0 4096 243272 000000007e56b7c0                            =
      =20
           16: 0 4096 243273 000000007e56b7c0                            =
      =20
           17: 0 4096 243274 000000007e56b7c0                            =
      =20
           18: 0 4096 243275 000000007e56b7c0                            =
      =20
           19: 0 4096 243276 000000007e56b7c0                            =
      =20
           20: 0 4096 243277 000000007e56b7c0                            =
      =20
           21: 0 4096 243278 000000007e56b7c0                            =
      =20
           22: 0 4096 243279 000000007e56b7c0                            =
      =20
           23: 0 4096 243280 000000007e56b7c0                            =
      =20
           24: 0 4096 243281 000000007e56b7c0                            =
      =20
           25: 0 4096 243282 000000007e56b7c0                            =
      =20
           26: 0 4096 243283 000000007e56b7c0                            =
      =20
           27: 0 4096 243284 000000007e56b7c0                            =
      =20
           28: 0 4096 243285 000000007e56b7c0                            =
      =20
           29: 0 4096 243286 000000007e56b7c0                            =
      =20
           30: 0 4096 243287 000000007e56b7c0                            =
      =20
           31: 0 4096 243288 000000007e56b7c0                            =
      =20
timer_interrupt(CPU 3): delayed! cycles 568D1987 rem 78BB79  next/now =
21A8E520F7
blk_rq_map_sg: merge bug: 9 8, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e6e6300(f:24490000, t:1)              =
      =20
            0: 0 4096 256236 000000007e743400                            =
      =20
            1: 0 4096 243995 000000007e743400                            =
      =20
            2: 0 4096 244030 000000007e743400                            =
      =20
            3: 0 4096 244015 000000007e743400                            =
      =20
            4: 0 4096 19012 000000007e743400                             =
      =20
            5: 0 4096 244119 000000007e743400                            =
      =20
            6: 0 4096 18736 000000007e743400                             =
      =20
            7: 0 4096 244657 000000007e743400                            =
      =20
            8: 0 4096 244658 000000007e743400                            =
      =20
            9: 0 4096 244659 000000007e743400                            =
      =20
           10: 0 4096 244660 000000007e743400                            =
      =20
           11: 0 4096 244661 000000007e743400                            =
      =20
           12: 0 4096 244662 000000007e743400                            =
      =20
           13: 0 4096 244663 000000007e743400                            =
      =20
           14: 0 4096 244664 000000007e743400                            =
      =20
           15: 0 4096 244665 000000007e743400                            =
      =20
           16: 0 4096 244666 000000007e743400                            =
      =20
           17: 0 4096 244667 000000007e743400                            =
      =20
           18: 0 4096 244668 000000007e743400                            =
      =20
           19: 0 4096 244669 000000007e743400                            =
      =20
           20: 0 4096 244670 000000007e743400                            =
      =20
           21: 0 4096 244671 000000007e743400                            =
      =20
           22: 0 4096 244672 000000007e743400                            =
      =20
           23: 0 4096 244673 000000007e743400                            =
      =20
           24: 0 4096 244674 000000007e743400                            =
      =20
           25: 0 4096 244675 000000007e743400                            =
      =20
           26: 0 4096 244676 000000007e743400                            =
      =20
           27: 0 4096 244677 000000007e743400                            =
      =20
timer_interrupt(CPU 1): delayed! cycles 4C8678A5 rem 5D5DDB  next/now =
2200EBF99A
timer_interrupt(CPU 0): delayed! cycles 4C80535F rem 638321  next/now =
2200F23494
timer_interrupt(CPU 3): delayed! cycles 4C5668F4 rem 8D6D8C  next/now =
22011C22F4
blk_rq_map_sg: merge bug: 3 2, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c7cec68(f:24490000, t:1)              =
      =20
            0: 0 4096 244632 000000007e36f100                            =
      =20
            1: 0 4096 244633 000000007e36f100                            =
      =20
            2: 0 4096 244634 000000007e36f100                            =
      =20
            3: 0 4096 244635 000000007e36f100                            =
      =20
            4: 0 4096 244636 000000007e36f100                            =
      =20
            5: 0 4096 244637 000000007e36f100                            =
      =20
            6: 0 4096 244638 000000007e36f100                            =
      =20
            7: 0 4096 244639 000000007e36f100                            =
      =20
            8: 0 4096 244640 000000007e36f100                            =
      =20
            9: 0 4096 244641 000000007e36f100                            =
      =20
           10: 0 4096 244642 000000007e36f100                            =
      =20
           11: 0 4096 244643 000000007e36f100                            =
      =20
           12: 0 4096 244644 000000007e36f100                            =
      =20
           13: 0 4096 244645 000000007e36f100                            =
      =20
           14: 0 4096 244646 000000007e36f100                            =
      =20
           15: 0 4096 244647 000000007e36f100                            =
      =20
           16: 0 4096 244648 000000007e36f100                            =
      =20
           17: 0 4096 244649 000000007e36f100                            =
      =20
           18: 0 4096 244650 000000007e36f100                            =
      =20
           19: 0 4096 244651 000000007e36f100                            =
      =20
           20: 0 4096 244652 000000007e36f100                            =
      =20
           21: 0 4096 244653 000000007e36f100                            =
      =20
           22: 0 4096 244654 000000007e36f100                            =
      =20
           23: 0 4096 244655 000000007e36f100                            =
      =20
           24: 0 4096 244656 000000007e36f100                            =
      =20
           25: 0 4096 244688 000000007e36f100                            =
      =20
           26: 0 4096 244689 000000007e36f100                            =
      =20
           27: 0 4096 244690 000000007e36f100                            =
      =20
           28: 0 4096 244691 000000007e36f100                            =
      =20
           29: 0 4096 244692 000000007e36f100                            =
      =20
           30: 0 4096 244693 000000007e36f100                            =
      =20
           31: 0 4096 244694 000000007e36f100                            =
      =20
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c7cec68(f:24490000, t:1)              =
      =20
            0: 0 4096 244695 000000007e36f100                            =
      =20
            1: 0 4096 244696 000000007e36f100                            =
      =20
            2: 0 4096 244697 000000007e36f100                            =
      =20
            3: 0 4096 244698 000000007e36f100                            =
      =20
            4: 0 4096 244699 000000007e36f100                            =
      =20
            5: 0 4096 244700 000000007e36f100                            =
      =20
            6: 0 4096 244701 000000007e36f100                            =
      =20
            7: 0 4096 244702 000000007e36f100                            =
      =20
            8: 0 4096 244703 000000007e36f100                            =
      =20
            9: 0 4096 244704 000000007e36f100                            =
      =20
           10: 0 4096 244705 000000007e36f100                            =
      =20
           11: 0 4096 244706 000000007e36f100                            =
      =20
           12: 0 4096 244707 000000007e36f100                            =
      =20
           13: 0 4096 244708 000000007e36f100                            =
      =20
           14: 0 4096 244709 000000007e36f100                            =
      =20
           15: 0 4096 244710 000000007e36f100                            =
      =20
           16: 0 4096 244711 000000007e36f100                            =
      =20
timer_interrupt(CPU 1): delayed! cycles 99A6A770 rem 210590  next/now =
229AB3A695
blk_rq_map_sg: merge bug: 17 16, extra_len 0, dma_drain 0                =
      =20
check_bvec: dump bvec for 000000007c7cec68(f:24490000, t:1)              =
      =20
            0: 0 4096 241762 000000007e700940                            =
      =20
            1: 0 4096 241761 000000007e700940                            =
      =20
            2: 0 4096 241760 000000007e700940                            =
      =20
            3: 0 4096 241759 000000007e700940                            =
      =20
            4: 0 4096 241758 000000007e700940                            =
      =20
            5: 0 4096 241757 000000007e700940                            =
      =20
            6: 0 4096 241756 000000007e700940                            =
      =20
            7: 0 4096 241755 000000007e700940                            =
      =20
            8: 0 4096 241754 000000007e700940                            =
      =20
            9: 0 4096 241753 000000007e700940                            =
      =20
           10: 0 4096 241752 000000007e700940                            =
      =20
           11: 0 4096 241751 000000007e700940                            =
      =20
           12: 0 4096 241750 000000007e700940                            =
      =20
           13: 0 4096 241749 000000007e700940                            =
      =20
           14: 0 4096 241748 000000007e700940                            =
      =20
           15: 0 4096 241763 000000007e700940                            =
      =20
           16: 0 4096 241764 000000007e700940                            =
      =20
           17: 0 4096 241765 000000007e700940                            =
      =20
           18: 0 4096 241766 000000007e700940                            =
      =20
           19: 0 4096 241767 000000007e700940                            =
      =20
           20: 0 4096 241768 000000007e700940                            =
      =20
           21: 0 4096 241769 000000007e700940                            =
      =20
           22: 0 4096 241770 000000007e700940                            =
      =20
           23: 0 4096 241771 000000007e700940                            =
      =20
           24: 0 4096 241772 000000007e700940                            =
      =20
           25: 0 4096 241773 000000007e700940                            =
      =20
           26: 0 4096 241774 000000007e700940                            =
      =20
           27: 0 4096 241775 000000007e700940                            =
      =20
           28: 0 4096 241776 000000007e700940                            =
      =20
           29: 0 4096 241777 000000007e700940                            =
      =20
           30: 0 4096 241778 000000007e700940                            =
      =20
           31: 0 4096 241779 000000007e700940                            =
      =20
timer_interrupt(CPU 3): delayed! cycles 56DDB169 rem 282397  next/now =
22F9A94979
blk_rq_map_sg: merge bug: 8 7, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c6a3010(f:24490000, t:1)              =
      =20
            0: 0 4096 241855 000000007e2c4c40                            =
      =20
            1: 0 4096 241854 000000007e2c4c40                            =
      =20
            2: 0 4096 241853 000000007e2c4c40                            =
      =20
            3: 0 4096 241852 000000007e2c4c40                            =
      =20
            4: 0 4096 241851 000000007e2c4c40                            =
      =20
            5: 0 4096 241850 000000007e2c4c40                            =
      =20
            6: 0 4096 241856 000000007e2c4c40                            =
      =20
            7: 0 4096 241857 000000007e2c4c40                            =
      =20
            8: 0 4096 241858 000000007e2c4c40                            =
      =20
            9: 0 4096 241859 000000007e2c4c40                            =
      =20
           10: 0 4096 241860 000000007e2c4c40                            =
      =20
           11: 0 4096 241861 000000007e2c4c40                            =
      =20
           12: 0 4096 241862 000000007e2c4c40                            =
      =20
           13: 0 4096 241863 000000007e2c4c40                            =
      =20
           14: 0 4096 241864 000000007e2c4c40                            =
      =20
           15: 0 4096 241865 000000007e2c4c40                            =
      =20
           16: 0 4096 241866 000000007e2c4c40                            =
      =20
           17: 0 4096 241867 000000007e2c4c40                            =
      =20
           18: 0 4096 241868 000000007e2c4c40                            =
      =20
           19: 0 4096 241869 000000007e2c4c40                            =
      =20
           20: 0 4096 241870 000000007e2c4c40                            =
      =20
           21: 0 4096 241871 000000007e2c4c40                            =
      =20
           22: 0 4096 241872 000000007e2c4c40                            =
      =20
           23: 0 4096 241873 000000007e2c4c40                            =
      =20
           24: 0 4096 241874 000000007e2c4c40                            =
      =20
timer_interrupt(CPU 0): delayed! cycles 45571370 rem 65B510  next/now =
2345CA9B15
blk_rq_map_sg: merge bug: 16 15, extra_len 0, dma_drain 0                =
      =20
check_bvec: dump bvec for 000000007c7cec68(f:24490000, t:1)              =
      =20
            0: 0 4096 242010 000000007e700940                            =
      =20
            1: 0 4096 242009 000000007e700940                            =
      =20
            2: 0 4096 242008 000000007e700940                            =
      =20
            3: 0 4096 242007 000000007e700940                            =
      =20
            4: 0 4096 242006 000000007e700940                            =
      =20
            5: 0 4096 242005 000000007e700940                            =
      =20
            6: 0 4096 242004 000000007e700940                            =
      =20
            7: 0 4096 242003 000000007e700940                            =
      =20
            8: 0 4096 242002 000000007e700940                            =
      =20
            9: 0 4096 242001 000000007e700940                            =
      =20
           10: 0 4096 242000 000000007e700940                            =
      =20
           11: 0 4096 241999 000000007e700940                            =
      =20
           12: 0 4096 241998 000000007e700940                            =
      =20
           13: 0 4096 241997 000000007e700940                            =
      =20
           14: 0 4096 242073 000000007e700940                            =
      =20
           15: 0 4096 242074 000000007e700940                            =
      =20
           16: 0 4096 242075 000000007e700940                            =
      =20
           17: 0 4096 242076 000000007e700940                            =
      =20
           18: 0 4096 242077 000000007e700940                            =
      =20
           19: 0 4096 242078 000000007e700940                            =
      =20
           20: 0 4096 242079 000000007e700940                            =
      =20
           21: 0 4096 242080 000000007e700940                            =
      =20
           22: 0 4096 242081 000000007e700940                            =
      =20
           23: 0 4096 242082 000000007e700940                            =
      =20
           24: 0 4096 242083 000000007e700940                            =
      =20
           25: 0 4096 242084 000000007e700940                            =
      =20
           26: 0 4096 242085 000000007e700940                            =
      =20
           27: 0 4096 242086 000000007e700940                            =
      =20
           28: 0 4096 242087 000000007e700940                            =
      =20
           29: 0 4096 242088 000000007e700940                            =
      =20
           30: 0 4096 242089 000000007e700940                            =
      =20
           31: 0 4096 242090 000000007e700940                            =
      =20
timer_interrupt(CPU 3): delayed! cycles 57183241 rem 86393F  next/now =
23A388D5F1
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c6a3010(f:24490000, t:1)              =
      =20
            0: 0 4096 242044 000000007e2c4c40                            =
      =20
            1: 0 4096 242045 000000007e2c4c40                            =
      =20
            2: 0 4096 242046 000000007e2c4c40                            =
      =20
            3: 0 4096 242047 000000007e2c4c40                            =
      =20
            4: 0 4096 242048 000000007e2c4c40                            =
      =20
            5: 0 4096 242049 000000007e2c4c40                            =
      =20
            6: 0 4096 242050 000000007e2c4c40                            =
      =20
            7: 0 4096 242051 000000007e2c4c40                            =
      =20
            8: 0 4096 242052 000000007e2c4c40                            =
      =20
            9: 0 4096 242053 000000007e2c4c40                            =
      =20
           10: 0 4096 242054 000000007e2c4c40                            =
      =20
           11: 0 4096 242055 000000007e2c4c40                            =
      =20
           12: 0 4096 242056 000000007e2c4c40                            =
      =20
           13: 0 4096 242057 000000007e2c4c40                            =
      =20
           14: 0 4096 242058 000000007e2c4c40                            =
      =20
           15: 0 4096 242059 000000007e2c4c40                            =
      =20
           16: 0 4096 242060 000000007e2c4c40                            =
      =20
           17: 0 4096 242061 000000007e2c4c40                            =
      =20
[ ok lk_rq_map_sg: merge bug: 3 2, extra_len 0, dma_drain 0              =
      =20
check_bvec: dump bvec for 000000007c7cec68(f:24490000, t:1)              =
      =20
9m          0: 0 4096 242091 000000007e700ac0                            =
      =20
            1: 0 4096 242092 000000007e700ac0                            =
      =20
            2: 0 4096 242093 000000007e700ac0                            =
      =20
            3: 0 4096 242197 000000007e700ac0                            =
      =20
            4: 0 4096 242198 000000007e700ac0                            =
      =20
            5: 0 4096 242199 000000007e700ac0                            =
      =20
            6: 0 4096 242200 000000007e700ac0                            =
      =20
            7: 0 4096 242201 000000007e700ac0                            =
      =20
            8: 0 4096 242202 000000007e700ac0                            =
      =20
            9: 0 4096 242203 000000007e700ac0                            =
      =20
           10: 0 4096 242204 000000007e700ac0                            =
      =20
           11: 0 4096 242205 000000007e700ac0                            =
      =20
           12: 0 4096 242206 000000007e700ac0                            =
      =20
           13: 0 4096 242207 000000007e700ac0                            =
      =20
           14: 0 4096 242208 000000007e700ac0                            =
      =20
           15: 0 4096 242209 000000007e700ac0                            =
      =20
           16: 0 4096 242210 000000007e700ac0                            =
      =20
           17: 0 4096 242211 000000007e700ac0                            =
      =20
           18: 0 4096 242212 000000007e700ac0                            =
      =20
           19: 0 4096 242213 000000007e700ac0                            =
      =20
done.                                                                    =
      =20
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e2d1228(f:24490000, t:1)              =
      =20
            0: 0 4096 242545 000000007e2c4700                            =
      =20
            1: 0 4096 242546 000000007e2c4700                            =
      =20
            2: 0 4096 242547 000000007e2c4700                            =
      =20
            3: 0 4096 242548 000000007e2c4700                            =
      =20
            4: 0 4096 242549 000000007e2c4700                            =
      =20
            5: 0 4096 242550 000000007e2c4700                            =
      =20
            6: 0 4096 242551 000000007e2c4700                            =
      =20
            7: 0 4096 242552 000000007e2c4700                            =
      =20
            8: 0 4096 242553 000000007e2c4700                            =
      =20
            9: 0 4096 242554 000000007e2c4700                            =
      =20
           10: 0 4096 242555 000000007e2c4700                            =
      =20
           11: 0 4096 242556 000000007e2c4700                            =
      =20
           12: 0 4096 242557 000000007e2c4700                            =
      =20
           13: 0 4096 242558 000000007e2c4700                            =
      =20
           14: 0 4096 242559 000000007e2c4700                            =
      =20
           15: 0 4096 242560 000000007e2c4700                            =
      =20
           16: 0 4096 242561 000000007e2c4700                            =
      =20
blk_rq_map_sg: merge bug: 3 2, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c7cec68(f:24490000, t:1)              =
      =20
            0: 0 4096 242481 000000007e700ac0                            =
      =20
            1: 0 4096 242482 000000007e700ac0                            =
      =20
            2: 0 4096 242483 000000007e700ac0                            =
      =20
            3: 0 4096 242484 000000007e700ac0                            =
      =20
            4: 0 4096 242485 000000007e700ac0                            =
      =20
            5: 0 4096 242486 000000007e700ac0                            =
      =20
            6: 0 4096 242487 000000007e700ac0                            =
      =20
            7: 0 4096 242488 000000007e700ac0                            =
      =20
            8: 0 4096 242489 000000007e700ac0                            =
      =20
            9: 0 4096 242490 000000007e700ac0                            =
      =20
           10: 0 4096 242491 000000007e700ac0                            =
      =20
           11: 0 4096 242492 000000007e700ac0                            =
      =20
           12: 0 4096 242493 000000007e700ac0                            =
      =20
           13: 0 4096 242494 000000007e700ac0                            =
      =20
           14: 0 4096 242495 000000007e700ac0                            =
      =20
           15: 0 4096 242496 000000007e700ac0                            =
      =20
           16: 0 4096 242497 000000007e700ac0                            =
      =20
           17: 0 4096 242498 000000007e700ac0                            =
      =20
           18: 0 4096 242499 000000007e700ac0                            =
      =20
           19: 0 4096 242500 000000007e700ac0                            =
      =20
           20: 0 4096 242501 000000007e700ac0                            =
      =20
           21: 0 4096 242502 000000007e700ac0                            =
      =20
           22: 0 4096 242503 000000007e700ac0                            =
      =20
           23: 0 4096 242507 000000007e700ac0                            =
      =20
           24: 0 4096 242508 000000007e700ac0                            =
      =20
           25: 0 4096 242509 000000007e700ac0                            =
      =20
           26: 0 4096 242510 000000007e700ac0                            =
      =20
           27: 0 4096 242511 000000007e700ac0                            =
      =20
           28: 0 4096 242512 000000007e700ac0                            =
      =20
           29: 0 4096 242513 000000007e700ac0                            =
      =20
           30: 0 4096 242514 000000007e700ac0                            =
      =20
           31: 0 4096 242515 000000007e700ac0                            =
      =20
timer_interrupt(CPU 1): delayed! cycles 56B7580F rem 4E7CF1  next/now =
24A902C214
blk_rq_map_sg: merge bug: 3 2, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c7cec68(f:24490000, t:1)              =
      =20
            0: 0 4096 242571 000000007e700ac0                            =
      =20
            1: 0 4096 242572 000000007e700ac0                            =
      =20
            2: 0 4096 242573 000000007e700ac0                            =
      =20
            3: 0 4096 242574 000000007e700ac0                            =
      =20
            4: 0 4096 242575 000000007e700ac0                            =
      =20
            5: 0 4096 242576 000000007e700ac0                            =
      =20
            6: 0 4096 242577 000000007e700ac0                            =
      =20
            7: 0 4096 241079 000000007e700ac0                            =
      =20
            8: 0 4096 241080 000000007e700ac0                            =
      =20
            9: 0 4096 241081 000000007e700ac0                            =
      =20
           10: 0 4096 241082 000000007e700ac0                            =
      =20
           11: 0 4096 241083 000000007e700ac0                            =
      =20
           12: 0 4096 241084 000000007e700ac0                            =
      =20
           13: 0 4096 241085 000000007e700ac0                            =
      =20
           14: 0 4096 241086 000000007e700ac0                            =
      =20
           15: 0 4096 241087 000000007e700ac0                            =
      =20
           16: 0 4096 241088 000000007e700ac0                            =
      =20
           17: 0 4096 241089 000000007e700ac0                            =
      =20
           18: 0 4096 241090 000000007e700ac0                            =
      =20
           19: 0 4096 241091 000000007e700ac0                            =
      =20
           20: 0 4096 241092 000000007e700ac0                            =
      =20
           21: 0 4096 241093 000000007e700ac0                            =
      =20
           22: 0 4096 241094 000000007e700ac0                            =
      =20
           23: 0 4096 241095 000000007e700ac0                            =
      =20
           24: 0 4096 241096 000000007e700ac0                            =
      =20
           25: 0 4096 241097 000000007e700ac0                            =
      =20
           26: 0 4096 241098 000000007e700ac0                            =
      =20
           27: 0 4096 241099 000000007e700ac0                            =
      =20
           28: 0 4096 241100 000000007e700ac0                            =
      =20
           29: 0 4096 241101 000000007e700ac0                            =
      =20
           30: 0 4096 241102 000000007e700ac0                            =
      =20
           31: 0 4096 241103 000000007e700ac0                            =
      =20
timer_interrupt(CPU 3): delayed! cycles 56EFF7C1 rem 15DD3F  next/now =
25062EA171
[....] Waiting for /dev to be fully populated...sd 3:0:0:0: Attached =
scsi gener0
sr 5:0:0:0: Attached scsi generic sg1 type 5                             =
      =20
sd 6:0:0:0: Attached scsi generic sg2 type 0                             =
      =20
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e53c1e8(f:24490000, t:1)              =
      =20
            0: 0 4096 241280 000000007e56bac0                            =
      =20
            1: 0 4096 241281 000000007e56bac0                            =
      =20
            2: 0 4096 241282 000000007e56bac0                            =
      =20
            3: 0 4096 241283 000000007e56bac0                            =
      =20
            4: 0 4096 241284 000000007e56bac0                            =
      =20
            5: 0 4096 241285 000000007e56bac0                            =
      =20
            6: 0 4096 241286 000000007e56bac0                            =
      =20
            7: 0 4096 241287 000000007e56bac0                            =
      =20
            8: 0 4096 241288 000000007e56bac0                            =
      =20
            9: 0 4096 241289 000000007e56bac0                            =
      =20
           10: 0 4096 241290 000000007e56bac0                            =
      =20
           11: 0 4096 241291 000000007e56bac0                            =
      =20
           12: 0 4096 241292 000000007e56bac0                            =
      =20
           13: 0 4096 241293 000000007e56bac0                            =
      =20
           14: 0 4096 241294 000000007e56bac0                            =
      =20
           15: 0 4096 241295 000000007e56bac0                            =
      =20
           16: 0 4096 241296 000000007e56bac0                            =
      =20
           17: 0 4096 241297 000000007e56bac0                            =
      =20
           18: 0 4096 241298 000000007e56bac0                            =
      =20
           19: 0 4096 241299 000000007e56bac0                            =
      =20
           20: 0 4096 241300 000000007e56bac0                            =
      =20
           21: 0 4096 241301 000000007e56bac0                            =
      =20
           22: 0 4096 241302 000000007e56bac0                            =
      =20
           23: 0 4096 241303 000000007e56bac0                            =
      =20
           24: 0 4096 241304 000000007e56bac0                            =
      =20
           25: 0 4096 241305 000000007e56bac0                            =
      =20
           26: 0 4096 241306 000000007e56bac0                            =
      =20
           27: 0 4096 241307 000000007e56bac0                            =
      =20
           28: 0 4096 241308 000000007e56bac0                            =
      =20
           29: 0 4096 241309 000000007e56bac0                            =
      =20
           30: 0 4096 241310 000000007e56bac0                            =
      =20
           31: 0 4096 241311 000000007e56bac0                            =
      =20
sd 6:0:2:0: Attached scsi generic sg3 type 0                             =
      =20
e1000: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX     =
      =20
blk_rq_map_sg: merge bug: 6 5, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e290e40(f:24490000, t:1)              =
      =20
            0: 0 4096 257264 000000007e231580                            =
      =20
            1: 0 4096 257265 000000007e231580                            =
      =20
            2: 0 4096 257266 000000007e231580                            =
      =20
            3: 0 4096 257267 000000007e231580                            =
      =20
            4: 0 4096 246916 000000007e231580                            =
      =20
            5: 0 4096 246917 000000007e231580                            =
      =20
            6: 0 4096 246918 000000007e231580                            =
      =20
            7: 0 4096 246919 000000007e231580                            =
      =20
            8: 0 4096 257252 000000007e231580                            =
      =20
            9: 0 4096 257253 000000007e231580                            =
      =20
           10: 0 4096 257254 000000007e231580                            =
      =20
           11: 0 4096 257255 000000007e231580                            =
      =20
           12: 0 4096 248704 000000007e231580                            =
      =20
           13: 0 4096 248705 000000007e231580                            =
      =20
           14: 0 4096 248706 000000007e231580                            =
      =20
           15: 0 4096 248707 000000007e231580                            =
      =20
           16: 0 4096 248708 000000007e231580                            =
      =20
           17: 0 4096 248709 000000007e231580                            =
      =20
           18: 0 4096 248710 000000007e231580                            =
      =20
           19: 0 4096 248711 000000007e231580                            =
      =20
           20: 0 4096 248712 000000007e231580                            =
      =20
           21: 0 4096 248713 000000007e231580                            =
      =20
           22: 0 4096 248714 000000007e231580                            =
      =20
           23: 0 4096 248715 000000007e231580                            =
      =20
           24: 0 4096 248716 000000007e231580                            =
      =20
           25: 0 4096 248717 000000007e231580                            =
      =20
           26: 0 4096 248718 000000007e231580                            =
      =20
           27: 0 4096 248719 000000007e231580                            =
      =20
           28: 0 4096 248720 000000007e231580                            =
      =20
           29: 0 4096 248721 000000007e231580                            =
      =20
           30: 0 4096 248722 000000007e231580                            =
      =20
           31: 0 4096 248723 000000007e231580                            =
      =20
           32: 0 4096 248724 000000007e231580                            =
      =20
           33: 0 4096 248725 000000007e231580                            =
      =20
           34: 0 4096 248726 000000007e231580                            =
      =20
           35: 0 4096 248727 000000007e231580                            =
      =20
           36: 0 4096 248728 000000007e231580                            =
      =20
           37: 0 4096 248729 000000007e231580                            =
      =20
           38: 0 4096 248730 000000007e231580                            =
      =20
           39: 0 4096 248731 000000007e231580                            =
      =20
           40: 0 4096 248732 000000007e231580                            =
      =20
           41: 0 4096 248733 000000007e231580                            =
      =20
           42: 0 4096 248734 000000007e231580                            =
      =20
           43: 0 4096 248735 000000007e231580                            =
      =20
           44: 0 4096 254592 000000007e231580                            =
      =20
           45: 0 4096 254593 000000007e231580                            =
      =20
           46: 0 4096 254594 000000007e231580                            =
      =20
           47: 0 4096 254595 000000007e231580                            =
      =20
timer_interrupt(CPU 1): delayed! cycles 7EB7A101 rem 3D977F  next/now =
2616632296
blk_rq_map_sg: merge bug: 4 3, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e290a38(f:24490000, t:1)              =
      =20
            0: 0 4096 250268 000000007e231340                            =
      =20
            1: 0 4096 250269 000000007e231340                            =
      =20
            2: 0 4096 250270 000000007e231340                            =
      =20
            3: 0 4096 250271 000000007e231340                            =
      =20
            4: 0 4096 250272 000000007e231340                            =
      =20
            5: 0 4096 250273 000000007e231340                            =
      =20
            6: 0 4096 250274 000000007e231340                            =
      =20
            7: 0 4096 250275 000000007e231340                            =
      =20
            8: 0 4096 250276 000000007e231340                            =
      =20
            9: 0 4096 250277 000000007e231340                            =
      =20
           10: 0 4096 250278 000000007e231340                            =
      =20
           11: 0 4096 250279 000000007e231340                            =
      =20
           12: 0 4096 250280 000000007e231340                            =
      =20
           13: 0 4096 250281 000000007e231340                            =
      =20
           14: 0 4096 250282 000000007e231340                            =
      =20
           15: 0 4096 250283 000000007e231340                            =
      =20
           16: 0 4096 250284 000000007e231340                            =
      =20
           17: 0 4096 250285 000000007e231340                            =
      =20
           18: 0 4096 250286 000000007e231340                            =
      =20
           19: 0 4096 250287 000000007e231340                            =
      =20
           20: 0 4096 250290 000000007e231340                            =
      =20
           21: 0 4096 250291 000000007e231340                            =
      =20
           22: 0 4096 250292 000000007e231340                            =
      =20
           23: 0 4096 250293 000000007e231340                            =
      =20
           24: 0 4096 250294 000000007e231340                            =
      =20
           25: 0 4096 250295 000000007e231340                            =
      =20
           26: 0 4096 250296 000000007e231340                            =
      =20
           27: 0 4096 250297 000000007e231340                            =
      =20
           28: 0 4096 250298 000000007e231340                            =
      =20
           29: 0 4096 250299 000000007e231340                            =
      =20
           30: 0 4096 250300 000000007e231340                            =
      =20
           31: 0 4096 250301 000000007e231340                            =
      =20
           32: 0 4096 250302 000000007e231340                            =
      =20
           33: 0 4096 250303 000000007e231340                            =
      =20
           34: 0 4096 253184 000000007e231340                            =
      =20
           35: 0 4096 253185 000000007e231340                            =
      =20
           36: 0 4096 253186 000000007e231340                            =
      =20
           37: 0 4096 253187 000000007e231340                            =
      =20
           38: 0 4096 253188 000000007e231340                            =
      =20
           39: 0 4096 253189 000000007e231340                            =
      =20
           40: 0 4096 253190 000000007e231340                            =
      =20
           41: 0 4096 253191 000000007e231340                            =
      =20
           42: 0 4096 253192 000000007e231340                            =
      =20
           43: 0 4096 253193 000000007e231340                            =
      =20
           44: 0 4096 253194 000000007e231340                            =
      =20
           45: 0 4096 253195 000000007e231340                            =
      =20
           46: 0 4096 253196 000000007e231340                            =
      =20
           47: 0 4096 253197 000000007e231340                            =
      =20
timer_interrupt(CPU 1): delayed! cycles 7E469613 rem 160BED  next/now =
269D17FF98
blk_rq_map_sg: merge bug: 5 2, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e6e6050(f:24490000, t:1)              =
      =20
            0: 0 4096 248714 000000007e743280                            =
      =20
            1: 0 4096 248715 000000007e743280                            =
      =20
            2: 0 4096 248716 000000007e743280                            =
      =20
            3: 0 4096 248717 000000007e743280                            =
      =20
            4: 0 4096 248718 000000007e743280                            =
      =20
            5: 0 4096 248719 000000007e743280                            =
      =20
            6: 0 4096 248720 000000007e743280                            =
      =20
            7: 0 4096 248721 000000007e743280                            =
      =20
            8: 0 4096 248722 000000007e743280                            =
      =20
            9: 0 4096 248723 000000007e743280                            =
      =20
           10: 0 4096 248724 000000007e743280                            =
      =20
           11: 0 4096 248725 000000007e743280                            =
      =20
           12: 0 4096 248726 000000007e743280                            =
      =20
           13: 0 4096 248727 000000007e743280                            =
      =20
           14: 0 4096 248728 000000007e743280                            =
      =20
           15: 0 4096 248729 000000007e743280                            =
      =20
           16: 0 4096 248730 000000007e743280                            =
      =20
           17: 0 4096 248731 000000007e743280                            =
      =20
           18: 0 4096 248732 000000007e743280                            =
      =20
           19: 0 4096 248733 000000007e743280                            =
      =20
           20: 0 4096 248734 000000007e743280                            =
      =20
           21: 0 4096 248735 000000007e743280                            =
      =20
           22: 0 4096 245952 000000007e743280                            =
      =20
           23: 0 4096 245953 000000007e743280                            =
      =20
           24: 0 4096 245954 000000007e743280                            =
      =20
           25: 0 4096 245955 000000007e743280                            =
      =20
           26: 0 4096 245956 000000007e743280                            =
      =20
           27: 0 4096 245957 000000007e743280                            =
      =20
           28: 0 4096 245958 000000007e743280                            =
      =20
           29: 0 4096 245959 000000007e743280                            =
      =20
           30: 0 4096 245960 000000007e743280                            =
      =20
           31: 0 4096 245961 000000007e743280                            =
      =20
           32: 0 4096 245962 000000007e743280                            =
      =20
           33: 0 4096 245963 000000007e743280                            =
      =20
           34: 0 4096 245964 000000007e743280                            =
      =20
           35: 0 4096 245965 000000007e743280                            =
      =20
           36: 0 4096 245966 000000007e743280                            =
      =20
           37: 0 4096 245967 000000007e743280                            =
      =20
           38: 0 4096 245968 000000007e743280                            =
      =20
           39: 0 4096 245969 000000007e743280                            =
      =20
           40: 0 4096 245970 000000007e743280                            =
      =20
           41: 0 4096 245971 000000007e743280                            =
      =20
           42: 0 4096 245972 000000007e743280                            =
      =20
           43: 0 4096 245973 000000007e743280                            =
      =20
           44: 0 4096 245974 000000007e743280                            =
      =20
           45: 0 4096 245975 000000007e743280                            =
      =20
           46: 0 4096 245976 000000007e743280                            =
      =20
           47: 0 4096 245977 000000007e743280                            =
      =20
           48: 0 4096 245978 000000007e743280                            =
      =20
           49: 0 4096 245979 000000007e743280                            =
      =20
           50: 0 4096 245980 000000007e743280                            =
      =20
           51: 0 4096 245981 000000007e743280                            =
      =20
           52: 0 4096 245982 000000007e743280                            =
      =20
           53: 0 4096 245983 000000007e743280                            =
      =20
           54: 0 4096 245984 000000007e743280                            =
      =20
           55: 0 4096 245985 000000007e743280                            =
      =20
           56: 0 4096 245986 000000007e743280                            =
      =20
           57: 0 4096 245987 000000007e743280                            =
      =20
           58: 0 4096 245988 000000007e743280                            =
      =20
           59: 0 4096 245989 000000007e743280                            =
      =20
           60: 0 4096 245990 000000007e743280                            =
      =20
           61: 0 4096 245991 000000007e743280                            =
      =20
           62: 0 4096 245992 000000007e743280                            =
      =20
           63: 0 4096 245993 000000007e743280                            =
      =20
timer_interrupt(CPU 3): delayed! cycles A6A14EFD rem 434D03  next/now =
27573F94FD
blk_rq_map_sg: merge bug: 4 2, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e6e6458(f:24490000, t:1)              =
      =20
            0: 0 4096 246013 000000007e231280                            =
      =20
            1: 0 4096 246014 000000007e231280                            =
      =20
            2: 0 4096 246015 000000007e231280                            =
      =20
            3: 0 4096 246848 000000007e231280                            =
      =20
            4: 0 4096 246849 000000007e231280                            =
      =20
            5: 0 4096 246850 000000007e231280                            =
      =20
            6: 0 4096 246851 000000007e231280                            =
      =20
            7: 0 4096 246852 000000007e231280                            =
      =20
            8: 0 4096 246853 000000007e231280                            =
      =20
            9: 0 4096 246854 000000007e231280                            =
      =20
           10: 0 4096 246855 000000007e231280                            =
      =20
           11: 0 4096 246856 000000007e231280                            =
      =20
           12: 0 4096 246857 000000007e231280                            =
      =20
           13: 0 4096 246858 000000007e231280                            =
      =20
           14: 0 4096 246859 000000007e231280                            =
      =20
           15: 0 4096 246860 000000007e231280                            =
      =20
           16: 0 4096 246861 000000007e231280                            =
      =20
           17: 0 4096 246862 000000007e231280                            =
      =20
           18: 0 4096 246863 000000007e231280                            =
      =20
           19: 0 4096 246864 000000007e231280                            =
      =20
           20: 0 4096 246865 000000007e231280                            =
      =20
           21: 0 4096 246866 000000007e231280                            =
      =20
           22: 0 4096 246867 000000007e231280                            =
      =20
           23: 0 4096 246868 000000007e231280                            =
      =20
           24: 0 4096 246869 000000007e231280                            =
      =20
           25: 0 4096 246870 000000007e231280                            =
      =20
           26: 0 4096 246871 000000007e231280                            =
      =20
           27: 0 4096 246872 000000007e231280                            =
      =20
           28: 0 4096 246873 000000007e231280                            =
      =20
           29: 0 4096 246874 000000007e231280                            =
      =20
           30: 0 4096 246875 000000007e231280                            =
      =20
           31: 0 4096 246876 000000007e231280                            =
      =20
           32: 0 4096 246877 000000007e231280                            =
      =20
           33: 0 4096 246878 000000007e231280                            =
      =20
           34: 0 4096 246879 000000007e231280                            =
      =20
           35: 0 4096 246880 000000007e231280                            =
      =20
           36: 0 4096 246881 000000007e231280                            =
      =20
           37: 0 4096 246882 000000007e231280                            =
      =20
           38: 0 4096 246883 000000007e231280                            =
      =20
           39: 0 4096 246884 000000007e231280                            =
      =20
           40: 0 4096 246885 000000007e231280                            =
      =20
           41: 0 4096 246886 000000007e231280                            =
      =20
           42: 0 4096 246887 000000007e231280                            =
      =20
           43: 0 4096 246888 000000007e231280                            =
      =20
           44: 0 4096 246889 000000007e231280                            =
      =20
           45: 0 4096 246890 000000007e231280                            =
      =20
           46: 0 4096 246891 000000007e231280                            =
      =20
           47: 0 4096 246892 000000007e231280                            =
      =20
timer_interrupt(CPU 1): delayed! cycles 7E958E64 rem 5FAA1C  next/now =
27DEF57599
blk_rq_map_sg: merge bug: 22 21, extra_len 0, dma_drain 0                =
      =20
check_bvec: dump bvec for 000000007e53c1e8(f:24490000, t:1)              =
      =20
            0: 0 4096 248749 000000007e231dc0                            =
      =20
            1: 0 4096 255178 000000007e231dc0                            =
      =20
            2: 0 4096 255860 000000007e231dc0                            =
      =20
            3: 0 4096 246099 000000007e231dc0                            =
      =20
            4: 0 4096 258298 000000007e231dc0                            =
      =20
            5: 0 4096 254586 000000007e231dc0                            =
      =20
            6: 0 4096 254485 000000007e231dc0                            =
      =20
            7: 0 4096 253278 000000007e231dc0                            =
      =20
            8: 0 4096 258256 000000007e231dc0                            =
      =20
            9: 0 4096 254158 000000007e231dc0                            =
      =20
           10: 0 4096 258378 000000007e231dc0                            =
      =20
           11: 0 4096 246010 000000007e231dc0                            =
      =20
           12: 0 4096 246011 000000007e231dc0                            =
      =20
           13: 0 4096 246009 000000007e231dc0                            =
      =20
           14: 0 4096 246008 000000007e231dc0                            =
      =20
           15: 0 4096 246007 000000007e231dc0                            =
      =20
           16: 0 4096 246006 000000007e231dc0                            =
      =20
           17: 0 4096 246005 000000007e231dc0                            =
      =20
           18: 0 4096 246004 000000007e231dc0                            =
      =20
           19: 0 4096 246003 000000007e231dc0                            =
      =20
           20: 0 4096 253438 000000007e231dc0                            =
      =20
           21: 0 4096 253439 000000007e231dc0                            =
      =20
           22: 0 4096 250112 000000007e231dc0                            =
      =20
           23: 0 4096 250113 000000007e231dc0                            =
      =20
           24: 0 4096 250114 000000007e231dc0                            =
      =20
           25: 0 4096 250115 000000007e231dc0                            =
      =20
           26: 0 4096 250116 000000007e231dc0                            =
      =20
           27: 0 4096 250117 000000007e231dc0                            =
      =20
           28: 0 4096 250118 000000007e231dc0                            =
      =20
           29: 0 4096 250119 000000007e231dc0                            =
      =20
           30: 0 4096 250120 000000007e231dc0                            =
      =20
           31: 0 4096 250121 000000007e231dc0                            =
      =20
           32: 0 4096 250122 000000007e231dc0                            =
      =20
           33: 0 4096 250123 000000007e231dc0                            =
      =20
           34: 0 4096 250124 000000007e231dc0                            =
      =20
           35: 0 4096 250125 000000007e231dc0                            =
      =20
           36: 0 4096 250126 000000007e231dc0                            =
      =20
           37: 0 4096 250127 000000007e231dc0                            =
      =20
           38: 0 4096 250128 000000007e231dc0                            =
      =20
           39: 0 4096 250129 000000007e231dc0                            =
      =20
           40: 0 4096 250130 000000007e231dc0                            =
      =20
           41: 0 4096 250131 000000007e231dc0                            =
      =20
           42: 0 4096 250132 000000007e231dc0                            =
      =20
           43: 0 4096 250133 000000007e231dc0                            =
      =20
           44: 0 4096 250134 000000007e231dc0                            =
      =20
           45: 0 4096 250135 000000007e231dc0                            =
      =20
           46: 0 4096 250136 000000007e231dc0                            =
      =20
           47: 0 4096 250137 000000007e231dc0                            =
      =20
timer_interrupt(CPU 0): delayed! cycles 7EAD517D rem 47E703  next/now =
286517F712
blk_rq_map_sg: merge bug: 14 12, extra_len 0, dma_drain 0                =
      =20
check_bvec: dump bvec for 000000007e6e6458(f:24490000, t:1)              =
      =20
            0: 0 4096 246893 000000007e231280                            =
      =20
            1: 0 4096 246894 000000007e231280                            =
      =20
            2: 0 4096 246895 000000007e231280                            =
      =20
            3: 0 4096 246896 000000007e231280                            =
      =20
            4: 0 4096 246897 000000007e231280                            =
      =20
            5: 0 4096 246898 000000007e231280                            =
      =20
            6: 0 4096 246899 000000007e231280                            =
      =20
            7: 0 4096 246900 000000007e231280                            =
      =20
            8: 0 4096 246901 000000007e231280                            =
      =20
            9: 0 4096 255478 000000007e231280                            =
      =20
           10: 0 4096 254757 000000007e231280                            =
      =20
           11: 0 4096 247536 000000007e231280                            =
      =20
           12: 0 4096 253991 000000007e231280                            =
      =20
           13: 0 4096 250365 000000007e231280                            =
      =20
           14: 0 4096 254751 000000007e231280                            =
      =20
           15: 0 4096 248750 000000007e231280                            =
      =20
           16: 0 4096 250242 000000007e231280                            =
      =20
           17: 0 4096 253347 000000007e231280                            =
      =20
           18: 0 4096 246908 000000007e231280                            =
      =20
           19: 0 4096 246909 000000007e231280                            =
      =20
           20: 0 4096 246910 000000007e231280                            =
      =20
           21: 0 4096 246911 000000007e231280                            =
      =20
           22: 0 4096 253348 000000007e231280                            =
      =20
           23: 0 4096 253349 000000007e231280                            =
      =20
           24: 0 4096 253350 000000007e231280                            =
      =20
           25: 0 4096 253351 000000007e231280                            =
      =20
           26: 0 4096 253352 000000007e231280                            =
      =20
           27: 0 4096 253353 000000007e231280                            =
      =20
           28: 0 4096 253354 000000007e231280                            =
      =20
           29: 0 4096 253355 000000007e231280                            =
      =20
           30: 0 4096 253356 000000007e231280                            =
      =20
           31: 0 4096 253357 000000007e231280                            =
      =20
           32: 0 4096 253358 000000007e231280                            =
      =20
           33: 0 4096 253359 000000007e231280                            =
      =20
           34: 0 4096 253360 000000007e231280                            =
      =20
           35: 0 4096 253361 000000007e231280                            =
      =20
           36: 0 4096 253362 000000007e231280                            =
      =20
           37: 0 4096 253363 000000007e231280                            =
      =20
           38: 0 4096 253364 000000007e231280                            =
      =20
           39: 0 4096 253365 000000007e231280                            =
      =20
           40: 0 4096 253366 000000007e231280                            =
      =20
           41: 0 4096 253367 000000007e231280                            =
      =20
           42: 0 4096 253368 000000007e231280                            =
      =20
           43: 0 4096 253369 000000007e231280                            =
      =20
           44: 0 4096 253370 000000007e231280                            =
      =20
           45: 0 4096 253371 000000007e231280                            =
      =20
           46: 0 4096 253372 000000007e231280                            =
      =20
           47: 0 4096 253373 000000007e231280                            =
      =20
           48: 0 4096 253374 000000007e231280                            =
      =20
           49: 0 4096 253375 000000007e231280                            =
      =20
           50: 0 4096 253376 000000007e231280                            =
      =20
           51: 0 4096 253377 000000007e231280                            =
      =20
           52: 0 4096 253378 000000007e231280                            =
      =20
           53: 0 4096 253379 000000007e231280                            =
      =20
           54: 0 4096 253380 000000007e231280                            =
      =20
           55: 0 4096 253381 000000007e231280                            =
      =20
           56: 0 4096 253382 000000007e231280                            =
      =20
           57: 0 4096 253383 000000007e231280                            =
      =20
           58: 0 4096 253384 000000007e231280                            =
      =20
           59: 0 4096 253385 000000007e231280                            =
      =20
           60: 0 4096 253386 000000007e231280                            =
      =20
           61: 0 4096 253387 000000007e231280                            =
      =20
           62: 0 4096 253388 000000007e231280                            =
      =20
           63: 0 4096 253389 000000007e231280                            =
      =20
timer_interrupt(CPU 3): delayed! cycles A63614F2 rem 15F08E  next/now =
2916487FF2
blk_rq_map_sg: merge bug: 8 6, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e53cb50(f:24490000, t:1)              =
      =20
            0: 0 4096 253319 000000007e231a00                            =
      =20
            1: 0 4096 253320 000000007e231a00                            =
      =20
            2: 0 4096 253321 000000007e231a00                            =
      =20
            3: 0 4096 253322 000000007e231a00                            =
      =20
            4: 0 4096 253323 000000007e231a00                            =
      =20
            5: 0 4096 250139 000000007e231a00                            =
      =20
            6: 0 4096 250140 000000007e231a00                            =
      =20
            7: 0 4096 250141 000000007e231a00                            =
      =20
            8: 0 4096 246904 000000007e231a00                            =
      =20
            9: 0 4096 246905 000000007e231a00                            =
      =20
           10: 0 4096 246906 000000007e231a00                            =
      =20
           11: 0 4096 246907 000000007e231a00                            =
      =20
           12: 0 4096 250144 000000007e231a00                            =
      =20
           13: 0 4096 250145 000000007e231a00                            =
      =20
           14: 0 4096 250146 000000007e231a00                            =
      =20
           15: 0 4096 250147 000000007e231a00                            =
      =20
           16: 0 4096 250252 000000007e231a00                            =
      =20
           17: 0 4096 250253 000000007e231a00                            =
      =20
           18: 0 4096 250254 000000007e231a00                            =
      =20
           19: 0 4096 250255 000000007e231a00                            =
      =20
           20: 0 4096 250176 000000007e231a00                            =
      =20
           21: 0 4096 250177 000000007e231a00                            =
      =20
           22: 0 4096 250178 000000007e231a00                            =
      =20
           23: 0 4096 250179 000000007e231a00                            =
      =20
           24: 0 4096 250180 000000007e231a00                            =
      =20
           25: 0 4096 250181 000000007e231a00                            =
      =20
           26: 0 4096 250182 000000007e231a00                            =
      =20
           27: 0 4096 250183 000000007e231a00                            =
      =20
           28: 0 4096 250184 000000007e231a00                            =
      =20
           29: 0 4096 250185 000000007e231a00                            =
      =20
           30: 0 4096 250186 000000007e231a00                            =
      =20
           31: 0 4096 250187 000000007e231a00                            =
      =20
           32: 0 4096 250188 000000007e231a00                            =
      =20
           33: 0 4096 250189 000000007e231a00                            =
      =20
           34: 0 4096 250190 000000007e231a00                            =
      =20
           35: 0 4096 250191 000000007e231a00                            =
      =20
           36: 0 4096 250192 000000007e231a00                            =
      =20
           37: 0 4096 250193 000000007e231a00                            =
      =20
           38: 0 4096 250194 000000007e231a00                            =
      =20
           39: 0 4096 250195 000000007e231a00                            =
      =20
           40: 0 4096 250196 000000007e231a00                            =
      =20
           41: 0 4096 250197 000000007e231a00                            =
      =20
           42: 0 4096 250198 000000007e231a00                            =
      =20
           43: 0 4096 250199 000000007e231a00                            =
      =20
           44: 0 4096 250200 000000007e231a00                            =
      =20
           45: 0 4096 250201 000000007e231a00                            =
      =20
           46: 0 4096 250202 000000007e231a00                            =
      =20
           47: 0 4096 250203 000000007e231a00                            =
      =20
           48: 0 4096 250204 000000007e231a00                            =
      =20
           49: 0 4096 250205 000000007e231a00                            =
      =20
           50: 0 4096 250206 000000007e231a00                            =
      =20
           51: 0 4096 250207 000000007e231a00                            =
      =20
           52: 0 4096 250208 000000007e231a00                            =
      =20
           53: 0 4096 250209 000000007e231a00                            =
      =20
           54: 0 4096 250210 000000007e231a00                            =
      =20
           55: 0 4096 250211 000000007e231a00                            =
      =20
           56: 0 4096 250212 000000007e231a00                            =
      =20
           57: 0 4096 250213 000000007e231a00                            =
      =20
           58: 0 4096 250214 000000007e231a00                            =
      =20
           59: 0 4096 250215 000000007e231a00                            =
      =20
           60: 0 4096 250216 000000007e231a00                            =
      =20
           61: 0 4096 250217 000000007e231a00                            =
      =20
           62: 0 4096 250218 000000007e231a00                            =
      =20
           63: 0 4096 250219 000000007e231a00                            =
      =20
timer_interrupt(CPU 0): delayed! cycles A6183B68 rem 33CA18  next/now =
29C5F3FF1D
blk_rq_map_sg: merge bug: 5 4, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e53c498(f:24490000, t:1)              =
      =20
            0: 0 4096 253235 000000007e6e7b80                            =
      =20
            1: 0 4096 253236 000000007e6e7b80                            =
      =20
            2: 0 4096 253237 000000007e6e7b80                            =
      =20
            3: 0 4096 253238 000000007e6e7b80                            =
      =20
            4: 0 4096 253239 000000007e6e7b80                            =
      =20
            5: 0 4096 253240 000000007e6e7b80                            =
      =20
            6: 0 4096 253241 000000007e6e7b80                            =
      =20
            7: 0 4096 253242 000000007e6e7b80                            =
      =20
            8: 0 4096 253243 000000007e6e7b80                            =
      =20
            9: 0 4096 253244 000000007e6e7b80                            =
      =20
           10: 0 4096 253245 000000007e6e7b80                            =
      =20
           11: 0 4096 253246 000000007e6e7b80                            =
      =20
           12: 0 4096 253247 000000007e6e7b80                            =
      =20
           13: 0 4096 248640 000000007e6e7b80                            =
      =20
           14: 0 4096 248641 000000007e6e7b80                            =
      =20
           15: 0 4096 248642 000000007e6e7b80                            =
      =20
           16: 0 4096 248643 000000007e6e7b80                            =
      =20
           17: 0 4096 248644 000000007e6e7b80                            =
      =20
           18: 0 4096 248645 000000007e6e7b80                            =
      =20
           19: 0 4096 248646 000000007e6e7b80                            =
      =20
           20: 0 4096 248647 000000007e6e7b80                            =
      =20
           21: 0 4096 248648 000000007e6e7b80                            =
      =20
           22: 0 4096 248649 000000007e6e7b80                            =
      =20
           23: 0 4096 248650 000000007e6e7b80                            =
      =20
           24: 0 4096 248651 000000007e6e7b80                            =
      =20
           25: 0 4096 248652 000000007e6e7b80                            =
      =20
           26: 0 4096 248653 000000007e6e7b80                            =
      =20
           27: 0 4096 248654 000000007e6e7b80                            =
      =20
           28: 0 4096 248655 000000007e6e7b80                            =
      =20
           29: 0 4096 246784 000000007e6e7b80                            =
      =20
           30: 0 4096 246785 000000007e6e7b80                            =
      =20
           31: 0 4096 246786 000000007e6e7b80                            =
      =20
           32: 0 4096 246787 000000007e6e7b80                            =
      =20
           33: 0 4096 246788 000000007e6e7b80                            =
      =20
           34: 0 4096 246789 000000007e6e7b80                            =
      =20
           35: 0 4096 246790 000000007e6e7b80                            =
      =20
           36: 0 4096 246791 000000007e6e7b80                            =
      =20
           37: 0 4096 246792 000000007e6e7b80                            =
      =20
           38: 0 4096 246793 000000007e6e7b80                            =
      =20
           39: 0 4096 246794 000000007e6e7b80                            =
      =20
           40: 0 4096 246795 000000007e6e7b80                            =
      =20
           41: 0 4096 246796 000000007e6e7b80                            =
      =20
           42: 0 4096 246797 000000007e6e7b80                            =
      =20
           43: 0 4096 246798 000000007e6e7b80                            =
      =20
           44: 0 4096 246799 000000007e6e7b80                            =
      =20
           45: 0 4096 246800 000000007e6e7b80                            =
      =20
           46: 0 4096 246801 000000007e6e7b80                            =
      =20
           47: 0 4096 246802 000000007e6e7b80                            =
      =20
           48: 0 4096 246803 000000007e6e7b80                            =
      =20
           49: 0 4096 246804 000000007e6e7b80                            =
      =20
           50: 0 4096 246805 000000007e6e7b80                            =
      =20
           51: 0 4096 246806 000000007e6e7b80                            =
      =20
           52: 0 4096 246807 000000007e6e7b80                            =
      =20
           53: 0 4096 246808 000000007e6e7b80                            =
      =20
           54: 0 4096 246809 000000007e6e7b80                            =
      =20
           55: 0 4096 246810 000000007e6e7b80                            =
      =20
           56: 0 4096 246811 000000007e6e7b80                            =
      =20
           57: 0 4096 246812 000000007e6e7b80                            =
      =20
           58: 0 4096 246813 000000007e6e7b80                            =
      =20
           59: 0 4096 246814 000000007e6e7b80                            =
      =20
           60: 0 4096 246815 000000007e6e7b80                            =
      =20
           61: 0 4096 248672 000000007e6e7b80                            =
      =20
           62: 0 4096 248673 000000007e6e7b80                            =
      =20
           63: 0 4096 248674 000000007e6e7b80                            =
      =20
timer_interrupt(CPU 3): delayed! cycles A6274EF5 rem 24B68B  next/now =
2A77BD1E75
done.                                                                    =
      =20
NET: Registered protocol family 10                                       =
      =20
[....] Activating swap...done.                                           =
      =20
EXT3-fs (sdb4): using internal journal                                   =
      =20
[....] Activating lvm and md swap...done.                                =
      =20
[....] Checking file systems...fsck from util-linux 2.27.1               =
      =20
BOOT: clean, 72/62496 files, 209445/249004 blocks                        =
      =20
blk_rq_map_sg: merge bug: 6 3, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e6e6458(f:24490000, t:1)              =
      =20
HOME: clean, 682            0: 0 4096 253438 000000007febd880            =
      =20
246/91578368 fil            1: 0 4096 253439 000000007febd880            =
      =20
es, 12758144/366            2: 0 4096 253216 000000007febd880            =
      =20
283264 blocks                                                            =
      =20
            3: 0 4096 253217 000000007febd880                            =
      =20
            4: 0 4096 253218 000000007febd880                            =
      =20
            5: 0 4096 253219 000000007febd880                            =
      =20
            6: 0 4096 253220 000000007febd880                            =
      =20
            7: 0 4096 253221 000000007febd880                            =
      =20
            8: 0 4096 246149 000000007febd880                            =
      =20
            9: 0 4096 246150 000000007febd880                            =
      =20
           10: 0 4096 246151 000000007febd880                            =
      =20
           11: 0 4096 246152 000000007febd880                            =
      =20
           12: 0 4096 246153 000000007febd880                            =
      =20
           13: 0 4096 246154 000000007febd880                            =
      =20
           14: 0 4096 246155 000000007febd880                            =
      =20
           15: 0 4096 246156 000000007febd880                            =
      =20
           16: 0 4096 246157 000000007febd880                            =
      =20
           17: 0 4096 246158 000000007febd880                            =
      =20
           18: 0 4096 246159 000000007febd880                            =
      =20
           19: 0 4096 246160 000000007febd880                            =
      =20
           20: 0 4096 246161 000000007febd880                            =
      =20
           21: 0 4096 246162 000000007febd880                            =
      =20
           22: 0 4096 246163 000000007febd880                            =
      =20
           23: 0 4096 246164 000000007febd880                            =
      =20
           24: 0 4096 246165 000000007febd880                            =
      =20
           25: 0 4096 246166 000000007febd880                            =
      =20
           26: 0 4096 246167 000000007febd880                            =
      =20
           27: 0 4096 246168 000000007febd880                            =
      =20
           28: 0 4096 246169 000000007febd880                            =
      =20
           29: 0 4096 246170 000000007febd880                            =
      =20
           30: 0 4096 246171 000000007febd880                            =
      =20
           31: 0 4096 246172 000000007febd880                            =
      =20
           32: 0 4096 246173 000000007febd880                            =
      =20
           33: 0 4096 246174 000000007febd880                            =
      =20
           34: 0 4096 246175 000000007febd880                            =
      =20
           35: 0 4096 246176 000000007febd880                            =
      =20
           36: 0 4096 246177 000000007febd880                            =
      =20
           37: 0 4096 246178 000000007febd880                            =
      =20
           38: 0 4096 246179 000000007febd880                            =
      =20
           39: 0 4096 246180 000000007febd880                            =
      =20
           40: 0 4096 246181 000000007febd880                            =
      =20
           41: 0 4096 246182 000000007febd880                            =
      =20
           42: 0 4096 246183 000000007febd880                            =
      =20
           43: 0 4096 246184 000000007febd880                            =
      =20
           44: 0 4096 246185 000000007febd880                            =
      =20
           45: 0 4096 246186 000000007febd880                            =
      =20
           46: 0 4096 246187 000000007febd880                            =
      =20
           47: 0 4096 246188 000000007febd880                            =
      =20
           48: 0 4096 246189 000000007febd880                            =
      =20
           49: 0 4096 246190 000000007febd880                            =
      =20
           50: 0 4096 246191 000000007febd880                            =
      =20
           51: 0 4096 246192 000000007febd880                            =
      =20
           52: 0 4096 246193 000000007febd880                            =
      =20
           53: 0 4096 246194 000000007febd880                            =
      =20
           54: 0 4096 246195 000000007febd880                            =
      =20
           55: 0 4096 246196 000000007febd880                            =
      =20
           56: 0 4096 246197 000000007febd880                            =
      =20
           57: 0 4096 246198 000000007febd880                            =
      =20
           58: 0 4096 246199 000000007febd880                            =
      =20
           59: 0 4096 246200 000000007febd880                            =
      =20
           60: 0 4096 246201 000000007febd880                            =
      =20
           61: 0 4096 246202 000000007febd880                            =
      =20
           62: 0 4096 246203 000000007febd880                            =
      =20
           63: 0 4096 246204 000000007febd880                            =
      =20
timer_interrupt(CPU 1): delayed! cycles AAC27238 rem 4E4748  next/now =
2C4E6D641D
blk_rq_map_sg: merge bug: 8 5, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e77ac28(f:24490000, t:1)              =
      =20
            0: 0 4096 246226 000000007febd4c0                            =
      =20
            1: 0 4096 246227 000000007febd4c0                            =
      =20
            2: 0 4096 246228 000000007febd4c0                            =
      =20
            3: 0 4096 246229 000000007febd4c0                            =
      =20
            4: 0 4096 246230 000000007febd4c0                            =
      =20
            5: 0 4096 246231 000000007febd4c0                            =
      =20
            6: 0 4096 246232 000000007febd4c0                            =
      =20
            7: 0 4096 246233 000000007febd4c0                            =
      =20
            8: 0 4096 246234 000000007febd4c0                            =
      =20
            9: 0 4096 246235 000000007febd4c0                            =
      =20
           10: 0 4096 246236 000000007febd4c0                            =
      =20
           11: 0 4096 246237 000000007febd4c0                            =
      =20
           12: 0 4096 246238 000000007febd4c0                            =
      =20
           13: 0 4096 246239 000000007febd4c0                            =
      =20
           14: 0 4096 246240 000000007febd4c0                            =
      =20
           15: 0 4096 246241 000000007febd4c0                            =
      =20
           16: 0 4096 246242 000000007febd4c0                            =
      =20
           17: 0 4096 246243 000000007febd4c0                            =
      =20
           18: 0 4096 255348 000000007febd4c0                            =
      =20
           19: 0 4096 255349 000000007febd4c0                            =
      =20
           20: 0 4096 255350 000000007febd4c0                            =
      =20
           21: 0 4096 255351 000000007febd4c0                            =
      =20
           22: 0 4096 248684 000000007febd4c0                            =
      =20
           23: 0 4096 248685 000000007febd4c0                            =
      =20
           24: 0 4096 248686 000000007febd4c0                            =
      =20
           25: 0 4096 248687 000000007febd4c0                            =
      =20
           26: 0 4096 248668 000000007febd4c0                            =
      =20
           27: 0 4096 248669 000000007febd4c0                            =
      =20
           28: 0 4096 248670 000000007febd4c0                            =
      =20
           29: 0 4096 248671 000000007febd4c0                            =
      =20
           30: 0 4096 248440 000000007febd4c0                            =
      =20
           31: 0 4096 248441 000000007febd4c0                            =
      =20
           32: 0 4096 248442 000000007febd4c0                            =
      =20
           33: 0 4096 248443 000000007febd4c0                            =
      =20
           34: 0 4096 248444 000000007febd4c0                            =
      =20
           35: 0 4096 248445 000000007febd4c0                            =
      =20
           36: 0 4096 248446 000000007febd4c0                            =
      =20
           37: 0 4096 248447 000000007febd4c0                            =
      =20
           38: 0 4096 248448 000000007febd4c0                            =
      =20
           39: 0 4096 248449 000000007febd4c0                            =
      =20
           40: 0 4096 248450 000000007febd4c0                            =
      =20
           41: 0 4096 248451 000000007febd4c0                            =
      =20
           42: 0 4096 248452 000000007febd4c0                            =
      =20
           43: 0 4096 248453 000000007febd4c0                            =
      =20
           44: 0 4096 248454 000000007febd4c0                            =
      =20
           45: 0 4096 248455 000000007febd4c0                            =
      =20
           46: 0 4096 248456 000000007febd4c0                            =
      =20
           47: 0 4096 248457 000000007febd4c0                            =
      =20
           48: 0 4096 248458 000000007febd4c0                            =
      =20
           49: 0 4096 248459 000000007febd4c0                            =
      =20
           50: 0 4096 248460 000000007febd4c0                            =
      =20
           51: 0 4096 248461 000000007febd4c0                            =
      =20
           52: 0 4096 248462 000000007febd4c0                            =
      =20
           53: 0 4096 248463 000000007febd4c0                            =
      =20
           54: 0 4096 248464 000000007febd4c0                            =
      =20
           55: 0 4096 248465 000000007febd4c0                            =
      =20
           56: 0 4096 248466 000000007febd4c0                            =
      =20
           57: 0 4096 248467 000000007febd4c0                            =
      =20
           58: 0 4096 248468 000000007febd4c0                            =
      =20
           59: 0 4096 248469 000000007febd4c0                            =
      =20
           60: 0 4096 248470 000000007febd4c0                            =
      =20
           61: 0 4096 248471 000000007febd4c0                            =
      =20
           62: 0 4096 248472 000000007febd4c0                            =
      =20
           63: 0 4096 248473 000000007febd4c0                            =
      =20
timer_interrupt(CPU 1): delayed! cycles A62864FC rem 23A084  next/now =
2CFD11A491
done.                                                                    =
      =20
[....] Cleaning up temporary files... /tmp. ok                           =
      =20
EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)  =
      =20
[....] Mounting local filesystems...done.                                =
      =20
[....] Activating swapfile swap...done.                                  =
      =20
[....] Cleaning up temporary files.... ok                                =
      =20
[....] Setting kernel variables ...done.                                 =
      =20
[....] Configuring network interfaces...ifup: interface eth0 already =
configured=20
done.                                                                    =
      =20
[....] Cleaning up temporary files.... ok                                =
      =20
[....] Setting up X socket directories... /tmp/.X11-unix /tmp/.ICE-unix. =
ok    =20
INIT: Entering runlevel: 2                                               =
      =20
[info] Using makefile-style concurrent boot in runlevel 2.               =
      =20
[....] Starting enhanced syslogd: rsyslogd. ok                           =
      =20
Starting ctdbd service: blk_rq_map_sg: merge bug: 2 1, extra_len 0, =
dma_drain 0=20
check_bvec: dump bvec for 000000007e2900d0(f:24490000, t:1)              =
      =20
            0: 0 4096 240513 000000007c4b0d00                            =
      =20
            1: 0 4096 240514 000000007c4b0d00                            =
      =20
            2: 0 4096 240515 000000007c4b0d00                            =
      =20
            3: 0 4096 240516 000000007c4b0d00                            =
      =20
            4: 0 4096 240517 000000007c4b0d00                            =
      =20
            5: 0 4096 240518 000000007c4b0d00                            =
      =20
            6: 0 4096 240519 000000007c4b0d00                            =
      =20
            7: 0 4096 240520 000000007c4b0d00                            =
      =20
            8: 0 4096 240521 000000007c4b0d00                            =
      =20
            9: 0 4096 240522 000000007c4b0d00                            =
      =20
           10: 0 4096 240523 000000007c4b0d00                            =
      =20
           11: 0 4096 240524 000000007c4b0d00                            =
      =20
           12: 0 4096 240525 000000007c4b0d00                            =
      =20
           13: 0 4096 240526 000000007c4b0d00                            =
      =20
           14: 0 4096 240527 000000007c4b0d00                            =
      =20
           15: 0 4096 240528 000000007c4b0d00                            =
      =20
           16: 0 4096 240529 000000007c4b0d00                            =
      =20
blk_rq_map_sg: merge bug: 6 5, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007edc9c68(f:24490000, t:1)              =
      =20
            0: 0 4096 240495 000000007ca4b7c0                            =
      =20
            1: 0 4096 240389 000000007ca4b7c0                            =
      =20
            2: 0 4096 239814 000000007ca4b7c0                            =
      =20
            3: 0 4096 242111 000000007ca4b7c0                            =
      =20
            4: 0 4096 240575 000000007ca4b7c0                            =
      =20
            5: 0 4096 240576 000000007ca4b7c0                            =
      =20
            6: 0 4096 240577 000000007ca4b7c0                            =
      =20
            7: 0 4096 240578 000000007ca4b7c0                            =
      =20
            8: 0 4096 240579 000000007ca4b7c0                            =
      =20
            9: 0 4096 240580 000000007ca4b7c0                            =
      =20
           10: 0 4096 240581 000000007ca4b7c0                            =
      =20
           11: 0 4096 240582 000000007ca4b7c0                            =
      =20
           12: 0 4096 240583 000000007ca4b7c0                            =
      =20
           13: 0 4096 240584 000000007ca4b7c0                            =
      =20
           14: 0 4096 240585 000000007ca4b7c0                            =
      =20
           15: 0 4096 240586 000000007ca4b7c0                            =
      =20
           16: 0 4096 240587 000000007ca4b7c0                            =
      =20
           17: 0 4096 240588 000000007ca4b7c0                            =
      =20
           18: 0 4096 240589 000000007ca4b7c0                            =
      =20
           19: 0 4096 240590 000000007ca4b7c0                            =
      =20
           20: 0 4096 240591 000000007ca4b7c0                            =
      =20
           21: 0 4096 240592 000000007ca4b7c0                            =
      =20
           22: 0 4096 240593 000000007ca4b7c0                            =
      =20
           23: 0 4096 240594 000000007ca4b7c0                            =
      =20
           24: 0 4096 240595 000000007ca4b7c0                            =
      =20
           25: 0 4096 240596 000000007ca4b7c0                            =
      =20
           26: 0 4096 240597 000000007ca4b7c0                            =
      =20
           27: 0 4096 240598 000000007ca4b7c0                            =
      =20
           28: 0 4096 240599 000000007ca4b7c0                            =
      =20
timer_interrupt(CPU 3): delayed! cycles 4F17FFAF rem 2E30D1  next/now =
324FD1B8FF
timer_interrupt(CPU 2): delayed! cycles 4EF1777C rem 54B904  next/now =
324FF85F60
[....] Starting deferred execution scheduler: atdblk_rq_map_sg: merge =
bug: 7 6,0
check_bvec: dump bvec for 000000007ee66a38(f:24490000, t:1)              =
      =20
            0: 0 4096 239173 000000007ee657c0                            =
      =20
            1: 0 4096 239172 000000007ee657c0                            =
      =20
            2: 0 4096 239171 000000007ee657c0                            =
      =20
            3: 0 4096 239170 000000007ee657c0                            =
      =20
            4: 0 4096 239169 000000007ee657c0                            =
      =20
            5: 0 4096 239205 000000007ee657c0                            =
      =20
            6: 0 4096 239206 000000007ee657c0                            =
      =20
            7: 0 4096 239207 000000007ee657c0                            =
      =20
            8: 0 4096 239208 000000007ee657c0                            =
      =20
            9: 0 4096 239209 000000007ee657c0                            =
      =20
           10: 0 4096 239210 000000007ee657c0                            =
      =20
           11: 0 4096 239211 000000007ee657c0                            =
      =20
           12: 0 4096 239212 000000007ee657c0                            =
      =20
           13: 0 4096 239213 000000007ee657c0                            =
      =20
           14: 0 4096 239214 000000007ee657c0                            =
      =20
           15: 0 4096 239215 000000007ee657c0                            =
      =20
           16: 0 4096 239216 000000007ee657c0                            =
      =20
           17: 0 4096 239217 000000007ee657c0                            =
      =20
           18: 0 4096 239218 000000007ee657c0                            =
      =20
           19: 0 4096 239219 000000007ee657c0                            =
      =20
           20: 0 4096 239220 000000007ee657c0                            =
      =20
           21: 0 4096 239221 000000007ee657c0                            =
      =20
           22: 0 4096 239222 000000007ee657c0                            =
      =20
           23: 0 4096 239223 000000007ee657c0                            =
      =20
           24: 0 4096 239224 000000007ee657c0                            =
      =20
           25: 0 4096 239225 000000007ee657c0                            =
      =20
           26: 0 4096 239226 000000007ee657c0                            =
      =20
           27: 0 4096 239227 000000007ee657c0                            =
      =20
           28: 0 4096 239228 000000007ee657c0                            =
      =20
           29: 0 4096 239229 000000007ee657c0                            =
      =20
           30: 0 4096 239230 000000007ee657c0                            =
      =20
           31: 0 4096 239231 000000007ee657c0                            =
      =20
timer_interrupt(CPU 0): delayed! cycles 56C36908 rem 426BF8  next/now =
32F260491D
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007ee66b90(f:24490000, t:1)              =
      =20
            0: 0 4096 239232 000000007ee65880                            =
      =20
            1: 0 4096 239233 000000007ee65880                            =
      =20
            2: 0 4096 239234 000000007ee65880                            =
      =20
            3: 0 4096 239235 000000007ee65880                            =
      =20
            4: 0 4096 239236 000000007ee65880                            =
      =20
            5: 0 4096 239237 000000007ee65880                            =
      =20
            6: 0 4096 239238 000000007ee65880                            =
      =20
            7: 0 4096 239239 000000007ee65880                            =
      =20
            8: 0 4096 239240 000000007ee65880                            =
      =20
            9: 0 4096 239241 000000007ee65880                            =
      =20
           10: 0 4096 239242 000000007ee65880                            =
      =20
           11: 0 4096 239243 000000007ee65880                            =
      =20
           12: 0 4096 239244 000000007ee65880                            =
      =20
           13: 0 4096 239245 000000007ee65880                            =
      =20
           14: 0 4096 239246 000000007ee65880                            =
      =20
           15: 0 4096 239247 000000007ee65880                            =
      =20
           16: 0 4096 239248 000000007ee65880                            =
      =20
           17: 0 4096 239249 000000007ee65880                            =
      =20
           18: 0 4096 239250 000000007ee65880                            =
      =20
           19: 0 4096 239251 000000007ee65880                            =
      =20
           20: 0 4096 239252 000000007ee65880                            =
      =20
           21: 0 4096 239253 000000007ee65880                            =
      =20
           22: 0 4096 239254 000000007ee65880                            =
      =20
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007ee66ce8(f:24490000, t:1)              =
      =20
            0: 0 4096 239255 000000007ee65940                            =
      =20
            1: 0 4096 239256 000000007ee65940                            =
      =20
            2: 0 4096 239257 000000007ee65940                            =
      =20
            3: 0 4096 239258 000000007ee65940                            =
      =20
            4: 0 4096 239259 000000007ee65940                            =
      =20
            5: 0 4096 239260 000000007ee65940                            =
      =20
            6: 0 4096 239261 000000007ee65940                            =
      =20
            7: 0 4096 239262 000000007ee65940                            =
      =20
            8: 0 4096 239263 000000007ee65940                            =
      =20
            9: 0 4096 239264 000000007ee65940                            =
      =20
           10: 0 4096 239265 000000007ee65940                            =
      =20
           11: 0 4096 239266 000000007ee65940                            =
      =20
           12: 0 4096 239267 000000007ee65940                            =
      =20
           13: 0 4096 239268 000000007ee65940                            =
      =20
           14: 0 4096 239269 000000007ee65940                            =
      =20
           15: 0 4096 239270 000000007ee65940                            =
      =20
           16: 0 4096 239271 000000007ee65940                            =
      =20
           17: 0 4096 239272 000000007ee65940                            =
      =20
           18: 0 4096 239273 000000007ee65940                            =
      =20
           19: 0 4096 239274 000000007ee65940                            =
      =20
           20: 0 4096 239275 000000007ee65940                            =
      =20
           21: 0 4096 239276 000000007ee65940                            =
      =20
           22: 0 4096 239277 000000007ee65940                            =
      =20
           23: 0 4096 239278 000000007ee65940                            =
      =20
           24: 0 4096 239279 000000007ee65940                            =
      =20
           25: 0 4096 239280 000000007ee65940                            =
      =20
           26: 0 4096 239281 000000007ee65940                            =
      =20
           27: 0 4096 239282 000000007ee65940                            =
      =20
           28: 0 4096 239283 000000007ee65940                            =
      =20
           29: 0 4096 239284 000000007ee65940                            =
      =20
           30: 0 4096 239285 000000007ee65940                            =
      =20
           31: 0 4096 239286 000000007ee65940                            =
      =20
blk_rq_map_sg: merge bug: 5 4, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e6e6300(f:24490000, t:1)              =
      =20
            0: 0 4096 240629 000000007ca4b940                            =
      =20
            1: 0 4096 238698 000000007ca4b940                            =
      =20
            2: 0 4096 240630 000000007ca4b940                            =
      =20
            3: 0 4096 239360 000000007ca4b940                            =
      =20
            4: 0 4096 239361 000000007ca4b940                            =
      =20
            5: 0 4096 239362 000000007ca4b940                            =
      =20
            6: 0 4096 239363 000000007ca4b940                            =
      =20
            7: 0 4096 239364 000000007ca4b940                            =
      =20
            8: 0 4096 239365 000000007ca4b940                            =
      =20
            9: 0 4096 239366 000000007ca4b940                            =
      =20
           10: 0 4096 239367 000000007ca4b940                            =
      =20
           11: 0 4096 239368 000000007ca4b940                            =
      =20
           12: 0 4096 239369 000000007ca4b940                            =
      =20
           13: 0 4096 239370 000000007ca4b940                            =
      =20
           14: 0 4096 239371 000000007ca4b940                            =
      =20
           15: 0 4096 239372 000000007ca4b940                            =
      =20
           16: 0 4096 239373 000000007ca4b940                            =
      =20
           17: 0 4096 239374 000000007ca4b940                            =
      =20
           18: 0 4096 239375 000000007ca4b940                            =
      =20
           19: 0 4096 239376 000000007ca4b940                            =
      =20
timer_interrupt(CPU 0): delayed! cycles D6447081 rem 4F337F  next/now =
33C8F3ED16
sched: RT throttling activated                                           =
      =20
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e6e6458(f:24490000, t:1)              =
      =20
            0: 0 4096 239377 000000007febd700                            =
      =20
            1: 0 4096 239378 000000007febd700                            =
      =20
            2: 0 4096 239379 000000007febd700                            =
      =20
            3: 0 4096 239380 000000007febd700                            =
      =20
            4: 0 4096 239381 000000007febd700                            =
      =20
            5: 0 4096 239382 000000007febd700                            =
      =20
            6: 0 4096 239383 000000007febd700                            =
      =20
            7: 0 4096 239384 000000007febd700                            =
      =20
            8: 0 4096 239385 000000007febd700                            =
      =20
            9: 0 4096 239386 000000007febd700                            =
      =20
           10: 0 4096 239387 000000007febd700                            =
      =20
           11: 0 4096 239388 000000007febd700                            =
      =20
           12: 0 4096 239389 000000007febd700                            =
      =20
           13: 0 4096 239390 000000007febd700                            =
      =20
           14: 0 4096 239391 000000007febd700                            =
      =20
           15: 0 4096 239392 000000007febd700                            =
      =20
           16: 0 4096 239393 000000007febd700                            =
      =20
           17: 0 4096 239394 000000007febd700                            =
      =20
           18: 0 4096 239395 000000007febd700                            =
      =20
           19: 0 4096 239396 000000007febd700                            =
      =20
           20: 0 4096 239397 000000007febd700                            =
      =20
           21: 0 4096 239398 000000007febd700                            =
      =20
           22: 0 4096 239399 000000007febd700                            =
      =20
           23: 0 4096 239400 000000007febd700                            =
      =20
           24: 0 4096 239401 000000007febd700                            =
      =20
           25: 0 4096 239402 000000007febd700                            =
      =20
           26: 0 4096 239403 000000007febd700                            =
      =20
           27: 0 4096 239404 000000007febd700                            =
      =20
timer_interrupt(CPU 2): delayed! cycles 4E731B03 rem 3A7EFD  next/now =
341DE7FCE7
blk_rq_map_sg: merge bug: 5 4, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007ee66a38(f:24490000, t:1)              =
      =20
            0: 0 4096 239452 000000007ee657c0                            =
      =20
            1: 0 4096 239451 000000007ee657c0                            =
      =20
            2: 0 4096 239450 000000007ee657c0                            =
      =20
            3: 0 4096 239484 000000007ee657c0                            =
      =20
            4: 0 4096 239485 000000007ee657c0                            =
      =20
            5: 0 4096 239486 000000007ee657c0                            =
      =20
            6: 0 4096 239487 000000007ee657c0                            =
      =20
            7: 0 4096 239488 000000007ee657c0                            =
      =20
            8: 0 4096 239489 000000007ee657c0                            =
      =20
            9: 0 4096 239490 000000007ee657c0                            =
      =20
           10: 0 4096 239491 000000007ee657c0                            =
      =20
           11: 0 4096 239492 000000007ee657c0                            =
      =20
           12: 0 4096 239493 000000007ee657c0                            =
      =20
           13: 0 4096 239494 000000007ee657c0                            =
      =20
           14: 0 4096 239495 000000007ee657c0                            =
      =20
           15: 0 4096 239496 000000007ee657c0                            =
      =20
           16: 0 4096 239497 000000007ee657c0                            =
      =20
           17: 0 4096 239498 000000007ee657c0                            =
      =20
           18: 0 4096 239499 000000007ee657c0                            =
      =20
           19: 0 4096 239500 000000007ee657c0                            =
      =20
           20: 0 4096 239501 000000007ee657c0                            =
      =20
           21: 0 4096 239502 000000007ee657c0                            =
      =20
           22: 0 4096 239503 000000007ee657c0                            =
      =20
           23: 0 4096 239504 000000007ee657c0                            =
      =20
           24: 0 4096 239505 000000007ee657c0                            =
      =20
           25: 0 4096 239506 000000007ee657c0                            =
      =20
           26: 0 4096 239507 000000007ee657c0                            =
      =20
           27: 0 4096 239508 000000007ee657c0                            =
      =20
           28: 0 4096 239509 000000007ee657c0                            =
      =20
           29: 0 4096 239510 000000007ee657c0                            =
      =20
           30: 0 4096 239511 000000007ee657c0                            =
      =20
           31: 0 4096 239512 000000007ee657c0                            =
      =20
timer_interrupt(CPU 3): delayed! cycles 56A8A3BE rem 5D3142  next/now =
347F81C07E
timer_interrupt(CPU 0): delayed! cycles 56D29C25 rem 3338DB  next/now =
347F57D21A
timer_interrupt(CPU 1): delayed! cycles 564067E7 rem 2CD699  next/now =
347F51971C
. ok                                                                     =
      =20
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e2904d8(f:24490000, t:1)              =
      =20
            0: 0 4096 237862 000000007ca4be80                            =
      =20
            1: 0 4096 237863 000000007ca4be80                            =
      =20
            2: 0 4096 237864 000000007ca4be80                            =
      =20
            3: 0 4096 237865 000000007ca4be80                            =
      =20
            4: 0 4096 237866 000000007ca4be80                            =
      =20
            5: 0 4096 237867 000000007ca4be80                            =
      =20
            6: 0 4096 237868 000000007ca4be80                            =
      =20
            7: 0 4096 237869 000000007ca4be80                            =
      =20
            8: 0 4096 237870 000000007ca4be80                            =
      =20
            9: 0 4096 237871 000000007ca4be80                            =
      =20
           10: 0 4096 237872 000000007ca4be80                            =
      =20
           11: 0 4096 237873 000000007ca4be80                            =
      =20
           12: 0 4096 237874 000000007ca4be80                            =
      =20
           13: 0 4096 237875 000000007ca4be80                            =
      =20
           14: 0 4096 237876 000000007ca4be80                            =
      =20
           15: 0 4096 237877 000000007ca4be80                            =
      =20
           16: 0 4096 237878 000000007ca4be80                            =
      =20
           17: 0 4096 237879 000000007ca4be80                            =
      =20
           18: 0 4096 237880 000000007ca4be80                            =
      =20
           19: 0 4096 237881 000000007ca4be80                            =
      =20
           20: 0 4096 237882 000000007ca4be80                            =
      =20
           21: 0 4096 237883 000000007ca4be80                            =
      =20
           22: 0 4096 237884 000000007ca4be80                            =
      =20
           23: 0 4096 237885 000000007ca4be80                            =
      =20
           24: 0 4096 237886 000000007ca4be80                            =
      =20
           25: 0 4096 237887 000000007ca4be80                            =
      =20
           26: 0 4096 237888 000000007ca4be80                            =
      =20
           27: 0 4096 237889 000000007ca4be80                            =
      =20
           28: 0 4096 237890 000000007ca4be80                            =
      =20
           29: 0 4096 237891 000000007ca4be80                            =
      =20
           30: 0 4096 237892 000000007ca4be80                            =
      =20
           31: 0 4096 237893 000000007ca4be80                            =
      =20
timer_interrupt(CPU 2): delayed! cycles 567B750F rem 8A5FF1  next/now =
350CEBBB63
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007dcb1050(f:24490000, t:1)              =
      =20
            0: 0 4096 237986 000000007e2c41c0                            =
      =20
            1: 0 4096 237987 000000007e2c41c0                            =
      =20
            2: 0 4096 237988 000000007e2c41c0                            =
      =20
            3: 0 4096 237989 000000007e2c41c0                            =
      =20
            4: 0 4096 237990 000000007e2c41c0                            =
      =20
            5: 0 4096 237991 000000007e2c41c0                            =
      =20
            6: 0 4096 237992 000000007e2c41c0                            =
      =20
            7: 0 4096 237993 000000007e2c41c0                            =
      =20
            8: 0 4096 237994 000000007e2c41c0                            =
      =20
            9: 0 4096 237995 000000007e2c41c0                            =
      =20
           10: 0 4096 237996 000000007e2c41c0                            =
      =20
           11: 0 4096 237997 000000007e2c41c0                            =
      =20
           12: 0 4096 237998 000000007e2c41c0                            =
      =20
           13: 0 4096 237999 000000007e2c41c0                            =
      =20
           14: 0 4096 238000 000000007e2c41c0                            =
      =20
           15: 0 4096 238001 000000007e2c41c0                            =
      =20
           16: 0 4096 238002 000000007e2c41c0                            =
      =20
           17: 0 4096 238003 000000007e2c41c0                            =
      =20
           18: 0 4096 238004 000000007e2c41c0                            =
      =20
           19: 0 4096 238005 000000007e2c41c0                            =
      =20
           20: 0 4096 238006 000000007e2c41c0                            =
      =20
           21: 0 4096 238007 000000007e2c41c0                            =
      =20
           22: 0 4096 238008 000000007e2c41c0                            =
      =20
timer_interrupt(CPU 2): delayed! cycles 4032D163 rem 2CAC9D  next/now =
355E9445E7
blk_rq_map_sg: merge bug: 4 3, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007c6a3168(f:24490000, t:1)              =
      =20
            0: 0 4096 238045 000000007febdd00                            =
      =20
            1: 0 4096 238046 000000007febdd00                            =
      =20
            2: 0 4096 238047 000000007febdd00                            =
      =20
            3: 0 4096 238048 000000007febdd00                            =
      =20
            4: 0 4096 238049 000000007febdd00                            =
      =20
            5: 0 4096 238050 000000007febdd00                            =
      =20
            6: 0 4096 238051 000000007febdd00                            =
      =20
            7: 0 4096 238052 000000007febdd00                            =
      =20
            8: 0 4096 238053 000000007febdd00                            =
      =20
            9: 0 4096 238054 000000007febdd00                            =
      =20
           10: 0 4096 238055 000000007febdd00                            =
      =20
           11: 0 4096 238056 000000007febdd00                            =
      =20
           12: 0 4096 238057 000000007febdd00                            =
      =20
           13: 0 4096 238058 000000007febdd00                            =
      =20
           14: 0 4096 238059 000000007febdd00                            =
      =20
           15: 0 4096 238060 000000007febdd00                            =
      =20
           16: 0 4096 238061 000000007febdd00                            =
      =20
           17: 0 4096 238062 000000007febdd00                            =
      =20
           18: 0 4096 238063 000000007febdd00                            =
      =20
           19: 0 4096 238065 000000007febdd00                            =
      =20
           20: 0 4096 238074 000000007febdd00                            =
      =20
           21: 0 4096 238075 000000007febdd00                            =
      =20
           22: 0 4096 238076 000000007febdd00                            =
      =20
           23: 0 4096 238077 000000007febdd00                            =
      =20
           24: 0 4096 238078 000000007febdd00                            =
      =20
timer_interrupt(CPU 1): delayed! cycles 45200E5B rem 423A5  next/now =
35B5DBE1950
[....] Starting MTA:blk_rq_map_sg: merge bug: 3 2, extra_len 0, =
dma_drain 0    =20
check_bvec: dump bvec for 000000007e53c5f0(f:24490000, t:1)              =
      =20
            0: 0 4096 238015 000000007e231dc0                            =
      =20
            1: 0 4096 238136 000000007e231dc0                            =
      =20
            2: 0 4096 238137 000000007e231dc0                            =
      =20
            3: 0 4096 238138 000000007e231dc0                            =
      =20
            4: 0 4096 238139 000000007e231dc0                            =
      =20
            5: 0 4096 238140 000000007e231dc0                            =
      =20
            6: 0 4096 238141 000000007e231dc0                            =
      =20
            7: 0 4096 238142 000000007e231dc0                            =
      =20
            8: 0 4096 238143 000000007e231dc0                            =
      =20
            9: 0 4096 238144 000000007e231dc0                            =
      =20
           10: 0 4096 238145 000000007e231dc0                            =
      =20
           11: 0 4096 238146 000000007e231dc0                            =
      =20
           12: 0 4096 238147 000000007e231dc0                            =
      =20
           13: 0 4096 238148 000000007e231dc0                            =
      =20
           14: 0 4096 238149 000000007e231dc0                            =
      =20
           15: 0 4096 238150 000000007e231dc0                            =
      =20
           16: 0 4096 238151 000000007e231dc0                            =
      =20
           17: 0 4096 238152 000000007e231dc0                            =
      =20
           18: 0 4096 238153 000000007e231dc0                            =
      =20
           19: 0 4096 238154 000000007e231dc0                            =
      =20
           20: 0 4096 238155 000000007e231dc0                            =
      =20
           21: 0 4096 238156 000000007e231dc0                            =
      =20
           22: 0 4096 238157 000000007e231dc0                            =
      =20
           23: 0 4096 238158 000000007e231dc0                            =
      =20
           24: 0 4096 238159 000000007e231dc0                            =
      =20
           25: 0 4096 238160 000000007e231dc0                            =
      =20
           26: 0 4096 238161 000000007e231dc0                            =
      =20
           27: 0 4096 238162 000000007e231dc0                            =
      =20
           28: 0 4096 238163 000000007e231dc0                            =
      =20
           29: 0 4096 238164 000000007e231dc0                            =
      =20
           30: 0 4096 238165 000000007e231dc0                            =
      =20
           31: 0 4096 238166 000000007e231dc0                            =
      =20
timer_interrupt(CPU 1): delayed! cycles 56A22B4B rem 63A9B5  next/now =
361B2FD290
blk_rq_map_sg: merge bug: 16 15, extra_len 0, dma_drain 0                =
      =20
check_bvec: dump bvec for 000000007e53c5f0(f:24490000, t:1)              =
      =20
            0: 0 4096 238228 000000007e231dc0                            =
      =20
            1: 0 4096 238227 000000007e231dc0                            =
      =20
            2: 0 4096 238226 000000007e231dc0                            =
      =20
            3: 0 4096 238225 000000007e231dc0                            =
      =20
            4: 0 4096 238224 000000007e231dc0                            =
      =20
            5: 0 4096 238223 000000007e231dc0                            =
      =20
            6: 0 4096 238222 000000007e231dc0                            =
      =20
            7: 0 4096 238221 000000007e231dc0                            =
      =20
            8: 0 4096 238220 000000007e231dc0                            =
      =20
            9: 0 4096 238219 000000007e231dc0                            =
      =20
           10: 0 4096 238218 000000007e231dc0                            =
      =20
           11: 0 4096 238217 000000007e231dc0                            =
      =20
           12: 0 4096 238216 000000007e231dc0                            =
      =20
           13: 0 4096 238215 000000007e231dc0                            =
      =20
           14: 0 4096 238229 000000007e231dc0                            =
      =20
           15: 0 4096 238230 000000007e231dc0                            =
      =20
           16: 0 4096 238231 000000007e231dc0                            =
      =20
           17: 0 4096 238232 000000007e231dc0                            =
      =20
           18: 0 4096 238233 000000007e231dc0                            =
      =20
           19: 0 4096 238234 000000007e231dc0                            =
      =20
           20: 0 4096 238235 000000007e231dc0                            =
      =20
           21: 0 4096 238236 000000007e231dc0                            =
      =20
           22: 0 4096 238237 000000007e231dc0                            =
      =20
           23: 0 4096 238238 000000007e231dc0                            =
      =20
           24: 0 4096 238239 000000007e231dc0                            =
      =20
           25: 0 4096 238240 000000007e231dc0                            =
      =20
           26: 0 4096 238241 000000007e231dc0                            =
      =20
           27: 0 4096 238242 000000007e231dc0                            =
      =20
           28: 0 4096 238243 000000007e231dc0                            =
      =20
           29: 0 4096 238244 000000007e231dc0                            =
      =20
           30: 0 4096 238245 000000007e231dc0                            =
      =20
           31: 0 4096 238246 000000007e231dc0                            =
      =20
timer_interrupt(CPU 1): delayed! cycles 56AEC72B rem 570DD5  next/now =
36795CB590
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e53cca8(f:24490000, t:1)              =
      =20
            0: 0 4096 236910 000000007e231940                            =
      =20
            1: 0 4096 236911 000000007e231940                            =
      =20
            2: 0 4096 236912 000000007e231940                            =
      =20
            3: 0 4096 236913 000000007e231940                            =
      =20
            4: 0 4096 236914 000000007e231940                            =
      =20
            5: 0 4096 236915 000000007e231940                            =
      =20
            6: 0 4096 236916 000000007e231940                            =
      =20
            7: 0 4096 236917 000000007e231940                            =
      =20
            8: 0 4096 236918 000000007e231940                            =
      =20
            9: 0 4096 236919 000000007e231940                            =
      =20
           10: 0 4096 236920 000000007e231940                            =
      =20
           11: 0 4096 236921 000000007e231940                            =
      =20
           12: 0 4096 236922 000000007e231940                            =
      =20
           13: 0 4096 236923 000000007e231940                            =
      =20
           14: 0 4096 236924 000000007e231940                            =
      =20
           15: 0 4096 236925 000000007e231940                            =
      =20
           16: 0 4096 236926 000000007e231940                            =
      =20
           17: 0 4096 236927 000000007e231940                            =
      =20
           18: 0 4096 236928 000000007e231940                            =
      =20
           19: 0 4096 236929 000000007e231940                            =
      =20
           20: 0 4096 236930 000000007e231940                            =
      =20
           21: 0 4096 236931 000000007e231940                            =
      =20
           22: 0 4096 236932 000000007e231940                            =
      =20
           23: 0 4096 236933 000000007e231940                            =
      =20
           24: 0 4096 236934 000000007e231940                            =
      =20
           25: 0 4096 236935 000000007e231940                            =
      =20
           26: 0 4096 236936 000000007e231940                            =
      =20
           27: 0 4096 236937 000000007e231940                            =
      =20
           28: 0 4096 236938 000000007e231940                            =
      =20
           29: 0 4096 236939 000000007e231940                            =
      =20
           30: 0 4096 236940 000000007e231940                            =
      =20
           31: 0 4096 236941 000000007e231940                            =
      =20
timer_interrupt(CPU 0): delayed! cycles 56704D66 rem 95879A  next/now =
37C98E829B
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e6e6050(f:24490000, t:1)              =
      =20
            0: 0 4096 237005 000000007c094640                            =
      =20
            1: 0 4096 237006 000000007c094640                            =
      =20
            2: 0 4096 237007 000000007c094640                            =
      =20
            3: 0 4096 237008 000000007c094640                            =
      =20
            4: 0 4096 237009 000000007c094640                            =
      =20
            5: 0 4096 237010 000000007c094640                            =
      =20
            6: 0 4096 237011 000000007c094640                            =
      =20
            7: 0 4096 237012 000000007c094640                            =
      =20
            8: 0 4096 237013 000000007c094640                            =
      =20
            9: 0 4096 237014 000000007c094640                            =
      =20
           10: 0 4096 237015 000000007c094640                            =
      =20
           11: 0 4096 237016 000000007c094640                            =
      =20
           12: 0 4096 237017 000000007c094640                            =
      =20
           13: 0 4096 237018 000000007c094640                            =
      =20
           14: 0 4096 237019 000000007c094640                            =
      =20
           15: 0 4096 237020 000000007c094640                            =
      =20
           16: 0 4096 237021 000000007c094640                            =
      =20
           17: 0 4096 237022 000000007c094640                            =
      =20
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e2908e0(f:24490000, t:1)              =
      =20
            0: 0 4096 237122 000000007c094280                            =
      =20
            1: 0 4096 237123 000000007c094280                            =
      =20
            2: 0 4096 237124 000000007c094280                            =
      =20
            3: 0 4096 237125 000000007c094280                            =
      =20
            4: 0 4096 237126 000000007c094280                            =
      =20
            5: 0 4096 237127 000000007c094280                            =
      =20
            6: 0 4096 237128 000000007c094280                            =
      =20
            7: 0 4096 237129 000000007c094280                            =
      =20
            8: 0 4096 237130 000000007c094280                            =
      =20
            9: 0 4096 237131 000000007c094280                            =
      =20
           10: 0 4096 237132 000000007c094280                            =
      =20
           11: 0 4096 237133 000000007c094280                            =
      =20
           12: 0 4096 237134 000000007c094280                            =
      =20
           13: 0 4096 237135 000000007c094280                            =
      =20
           14: 0 4096 237136 000000007c094280                            =
      =20
           15: 0 4096 237137 000000007c094280                            =
      =20
           16: 0 4096 237138 000000007c094280                            =
      =20
           17: 0 4096 237139 000000007c094280                            =
      =20
           18: 0 4096 237140 000000007c094280                            =
      =20
           19: 0 4096 237141 000000007c094280                            =
      =20
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e6e61a8(f:24490000, t:1)              =
      =20
            0: 0 4096 237166 000000007febd640                            =
      =20
            1: 0 4096 237167 000000007febd640                            =
      =20
            2: 0 4096 237168 000000007febd640                            =
      =20
            3: 0 4096 237169 000000007febd640                            =
      =20
            4: 0 4096 237170 000000007febd640                            =
      =20
            5: 0 4096 237171 000000007febd640                            =
      =20
            6: 0 4096 237172 000000007febd640                            =
      =20
            7: 0 4096 237173 000000007febd640                            =
      =20
            8: 0 4096 237174 000000007febd640                            =
      =20
            9: 0 4096 237175 000000007febd640                            =
      =20
           10: 0 4096 237176 000000007febd640                            =
      =20
           11: 0 4096 237177 000000007febd640                            =
      =20
           12: 0 4096 237178 000000007febd640                            =
      =20
           13: 0 4096 237179 000000007febd640                            =
      =20
           14: 0 4096 237180 000000007febd640                            =
      =20
           15: 0 4096 237181 000000007febd640                            =
      =20
           16: 0 4096 237182 000000007febd640                            =
      =20
           17: 0 4096 237183 000000007febd640                            =
      =20
           18: 0 4096 237184 000000007febd640                            =
      =20
           19: 0 4096 237185 000000007febd640                            =
      =20
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e290b90(f:24490000, t:1)              =
      =20
            0: 0 4096 237223 000000007c094580                            =
      =20
            1: 0 4096 237224 000000007c094580                            =
      =20
            2: 0 4096 237225 000000007c094580                            =
      =20
            3: 0 4096 237226 000000007c094580                            =
      =20
            4: 0 4096 237227 000000007c094580                            =
      =20
            5: 0 4096 237228 000000007c094580                            =
      =20
            6: 0 4096 237229 000000007c094580                            =
      =20
            7: 0 4096 237230 000000007c094580                            =
      =20
            8: 0 4096 237231 000000007c094580                            =
      =20
            9: 0 4096 237232 000000007c094580                            =
      =20
           10: 0 4096 237233 000000007c094580                            =
      =20
           11: 0 4096 237234 000000007c094580                            =
      =20
           12: 0 4096 237235 000000007c094580                            =
      =20
           13: 0 4096 237236 000000007c094580                            =
      =20
           14: 0 4096 237237 000000007c094580                            =
      =20
           15: 0 4096 237238 000000007c094580                            =
      =20
           16: 0 4096 237239 000000007c094580                            =
      =20
           17: 0 4096 237240 000000007c094580                            =
      =20
           18: 0 4096 237241 000000007c094580                            =
      =20
           19: 0 4096 237242 000000007c094580                            =
      =20
           20: 0 4096 237243 000000007c094580                            =
      =20
           21: 0 4096 237244 000000007c094580                            =
      =20
           22: 0 4096 237245 000000007c094580                            =
      =20
timer_interrupt(CPU 0): delayed! cycles 4028F032 rem 368DCE  next/now =
38BD56F517
blk_rq_map_sg: merge bug: 3 2, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e290b90(f:24490000, t:1)              =
      =20
            0: 0 4096 237246 000000007c094580                            =
      =20
            1: 0 4096 237247 000000007c094580                            =
      =20
            2: 0 4096 237248 000000007c094580                            =
      =20
            3: 0 4096 237249 000000007c094580                            =
      =20
            4: 0 4096 237250 000000007c094580                            =
      =20
            5: 0 4096 237251 000000007c094580                            =
      =20
            6: 0 4096 237252 000000007c094580                            =
      =20
            7: 0 4096 237253 000000007c094580                            =
      =20
            8: 0 4096 237254 000000007c094580                            =
      =20
            9: 0 4096 237255 000000007c094580                            =
      =20
           10: 0 4096 237256 000000007c094580                            =
      =20
           11: 0 4096 237257 000000007c094580                            =
      =20
           12: 0 4096 237258 000000007c094580                            =
      =20
           13: 0 4096 237259 000000007c094580                            =
      =20
           14: 0 4096 237260 000000007c094580                            =
      =20
           15: 0 4096 237261 000000007c094580                            =
      =20
           16: 0 4096 237262 000000007c094580                            =
      =20
           17: 0 4096 237263 000000007c094580                            =
      =20
           18: 0 4096 237264 000000007c094580                            =
      =20
           19: 0 4096 237265 000000007c094580                            =
      =20
           20: 0 4096 237266 000000007c094580                            =
      =20
           21: 0 4096 237267 000000007c094580                            =
      =20
           22: 0 4096 237268 000000007c094580                            =
      =20
           23: 0 4096 237269 000000007c094580                            =
      =20
           24: 0 4096 237270 000000007c094580                            =
      =20
           25: 0 4096 237271 000000007c094580                            =
      =20
           26: 0 4096 237272 000000007c094580                            =
      =20
           27: 0 4096 237273 000000007c094580                            =
      =20
           28: 0 4096 237274 000000007c094580                            =
      =20
           29: 0 4096 237276 000000007c094580                            =
      =20
           30: 0 4096 237277 000000007c094580                            =
      =20
           31: 0 4096 237278 000000007c094580                            =
      =20
timer_interrupt(CPU 0): delayed! cycles 569C5AE0 rem 697A20  next/now =
391D4D9B95
blk_rq_map_sg: merge bug: 2 1, extra_len 0, dma_drain 0                  =
      =20
check_bvec: dump bvec for 000000007e6e61a8(f:24490000, t:1)              =
      =20
            0: 0 4096 237311 000000007febd640                            =
      =20
            1: 0 4096 237312 000000007febd640                            =
      =20
            2: 0 4096 237313 000000007febd640                            =
      =20
            3: 0 4096 237314 000000007febd640                            =
      =20
            4: 0 4096 237315 000000007febd640                            =
      =20
            5: 0 4096 237316 000000007febd640                            =
      =20
            6: 0 4096 237317 000000007febd640                            =
      =20
            7: 0 4096 237318 000000007febd640                            =
      =20
            8: 0 4096 237319 000000007febd640                            =
      =20
            9: 0 4096 237320 000000007febd640                            =
      =20
           10: 0 4096 237321 000000007febd640                            =
      =20
           11: 0 4096 237322 000000007febd640                            =
      =20
           12: 0 4096 237323 000000007febd640                            =
      =20
           13: 0 4096 237324 000000007febd640                            =
      =20
           14: 0 4096 237325 000000007febd640                            =
      =20
           15: 0 4096 237326 000000007febd640                            =
      =20
           16: 0 4096 237327 000000007febd640                            =
      =20
           17: 0 4096 237328 000000007febd640                            =
      =20
           18: 0 4096 237329 000000007febd640                            =
      =20
           19: 0 4096 237330 000000007febd640                            =
      =20
           20: 0 4096 237331 000000007febd640                            =
      =20
           21: 0 4096 237332 000000007febd640                            =
      =20
           22: 0 4096 237333 000000007febd640                            =
      =20
           23: 0 4096 237334 000000007febd640                            =
      =20
           24: 0 4096 237335 000000007febd640                            =
      =20
           25: 0 4096 237336 000000007febd640                            =
      =20
           26: 0 4096 237337 000000007febd640                            =
      =20
           27: 0 4096 237338 000000007febd640                            =
      =20
           28: 0 4096 237339 000000007febd640                            =
      =20
           29: 0 4096 237340 000000007febd640                            =
      =20
           30: 0 4096 237341 000000007febd640                            =
      =20
           31: 0 4096 237342 000000007febd640                            =
      =20
timer_interrupt(CPU 0): delayed! cycles 56C3D525 rem 41FFDB  next/now =
397C13151A
 exim4. ok                                                               =
      =20
[....] Starting periodic command scheduler: cron. ok                     =
      =20
[....] Starting system message bus: dbus. ok                             =
      =20
[....] Starting NTP server: ntpd. ok                                     =
      =20
[....] Starting OpenBSD Secure Shell server: sshd. ok                    =
      =20
                                                                         =
      =20
Debian GNU/Linux stretch/sid atlas ttyS0                                 =
      =20
                                                                         =
      =20
atlas login:=20

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From: Ming Lei <tom.leiming@gmail.com>
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Subject: Re: [BUG] "block: make generic_make_request handle arbitrarily sized
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On Thu, Feb 25, 2016 at 7:28 AM, John David Anglin <dave.anglin@bell.net> wrote:
> On 2016-02-24, at 4:36 PM, Helge Deller wrote:
>
>> Maybe Dave has more luck, otherwise I'll continue to try to get some info.
>
> I tried your patch on the commit in linux-block which first failed to boot.  As with Helge, the
> system crashed and no useful data was output on console.  I then applied following patch
> to give some extra segments and tired again:
>
> diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
> index b1a2631..b421f03 100644
> --- a/drivers/scsi/scsi_lib.c
> +++ b/drivers/scsi/scsi_lib.c
> @@ -595,6 +595,11 @@ static int scsi_alloc_sgtable(struct scsi_data_buffer *sdb, int nents, bool mq)
>
>         BUG_ON(!nents);
>
> +       /* Provide extra entries in case of split.  */
> +       nents += 8;
> +       if (nents > SCSI_MAX_SG_SEGMENTS)
> +               nents = SCSI_MAX_SG_SEGMENTS;
> +

Yeah, this is needed for sake of safety.

>         if (mq) {
>                 if (nents <= SCSI_MAX_SG_SEGMENTS) {
>                         sdb->table.nents = nents;
>
> The attached file shows the crash in first boot.  The second boot was successful and various output
> was generated by your check code.

>From the following log(just select one simple, and looks all are similar) in
2nd boot, the bi_phys_segments is figured out as one by block core
, which is wrong because the max segment size is 64k according to
your investigation in the below link, but the whole req/bio is 192k(4k*48).

    http://www.spinics.net/lists/linux-parisc/msg06749.html

Looks weird, it shouldn't have happened because blk_bio_segment_split()
does respect the max segment size limit.

BTW, what is the scsi driver for the device?

blk_rq_map_sg: merge bug: 3 1, extra_len 0, dma_drain 0
check_bvec: dump bvec for 000000007e53c5f0(f:24490000, t:1)
            0: 0 4096 245852 000000007e2c4c40
            1: 0 4096 245853 000000007e2c4c40
            2: 0 4096 245854 000000007e2c4c40
            3: 0 4096 245855 000000007e2c4c40
            4: 0 4096 245856 000000007e2c4c40
            5: 0 4096 245857 000000007e2c4c40
            6: 0 4096 245858 000000007e2c4c40
            7: 0 4096 245859 000000007e2c4c40
            8: 0 4096 245860 000000007e2c4c40
            9: 0 4096 245861 000000007e2c4c40
           10: 0 4096 245862 000000007e2c4c40
           11: 0 4096 245863 000000007e2c4c40
           12: 0 4096 245864 000000007e2c4c40
           13: 0 4096 245865 000000007e2c4c40
           14: 0 4096 245866 000000007e2c4c40
           15: 0 4096 245867 000000007e2c4c40
           16: 0 4096 245868 000000007e2c4c40
           17: 0 4096 245869 000000007e2c4c40
           18: 0 4096 245870 000000007e2c4c40
           19: 0 4096 245871 000000007e2c4c40
           20: 0 4096 245872 000000007e2c4c40
           21: 0 4096 245873 000000007e2c4c40
           22: 0 4096 245874 000000007e2c4c40
           23: 0 4096 245875 000000007e2c4c40
           24: 0 4096 245876 000000007e2c4c40
           25: 0 4096 245877 000000007e2c4c40
           26: 0 4096 245878 000000007e2c4c40
           27: 0 4096 245879 000000007e2c4c40
           28: 0 4096 245880 000000007e2c4c40
           29: 0 4096 245881 000000007e2c4c40
           30: 0 4096 245882 000000007e2c4c40
           31: 0 4096 245883 000000007e2c4c40
           32: 0 4096 245884 000000007e2c4c40
           33: 0 4096 245885 000000007e2c4c40
           34: 0 4096 245886 000000007e2c4c40
           35: 0 4096 245887 000000007e2c4c40
           36: 0 4096 245888 000000007e2c4c40
           37: 0 4096 245889 000000007e2c4c40
           38: 0 4096 245890 000000007e2c4c40
           39: 0 4096 245891 000000007e2c4c40
           40: 0 4096 245892 000000007e2c4c40
           41: 0 4096 245893 000000007e2c4c40
           42: 0 4096 245894 000000007e2c4c40
           43: 0 4096 245895 000000007e2c4c40
           44: 0 4096 245896 000000007e2c4c40
           45: 0 4096 245897 000000007e2c4c40
           46: 0 4096 245898 000000007e2c4c40
           47: 0 4096 245899 000000007e2c4c40


Thanks,
Ming Lei
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From - Thu Nov 08 21:38:33 2018
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From: "Helge Deller" <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: Aw: Re: [BUG] "block: make generic_make_request handle arbitrarily
 sized bios" breaks boot on parisc-linux
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> On Thu, Feb 25, 2016 at 7:28 AM, John David Anglin <dave.anglin@bell.net> wrote:
> > On 2016-02-24, at 4:36 PM, Helge Deller wrote:
> >
> >> Maybe Dave has more luck, otherwise I'll continue to try to get some info.
> >
> > I tried your patch on the commit in linux-block which first failed to boot.  As with Helge, the
> > system crashed and no useful data was output on console.  I then applied following patch
> > to give some extra segments and tired again:
> >
> > diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
> > index b1a2631..b421f03 100644
> > --- a/drivers/scsi/scsi_lib.c
> > +++ b/drivers/scsi/scsi_lib.c
> > @@ -595,6 +595,11 @@ static int scsi_alloc_sgtable(struct scsi_data_buffer *sdb, int nents, bool mq)
> >
> >         BUG_ON(!nents);
> >
> > +       /* Provide extra entries in case of split.  */
> > +       nents += 8;
> > +       if (nents > SCSI_MAX_SG_SEGMENTS)
> > +               nents = SCSI_MAX_SG_SEGMENTS;
> > +
> 
> Yeah, this is needed for sake of safety.
> 
> >         if (mq) {
> >                 if (nents <= SCSI_MAX_SG_SEGMENTS) {
> >                         sdb->table.nents = nents;
> >
> > The attached file shows the crash in first boot.  The second boot was successful and various output
> > was generated by your check code.
> 
> From the following log(just select one simple, and looks all are similar) in
> 2nd boot, the bi_phys_segments is figured out as one by block core
> , which is wrong because the max segment size is 64k according to
> your investigation in the below link, but the whole req/bio is 192k(4k*48).
> 
>     http://www.spinics.net/lists/linux-parisc/msg06749.html
> 
> Looks weird, it shouldn't have happened because blk_bio_segment_split()
> does respect the max segment size limit.
> 
> BTW, what is the scsi driver for the device?

It happens with various drivers.
sym53c8xx (on my machine) and mptspi (Fusion MPT, on Daves machine).
Then we have PATA/SATA controllers too: sil680, sata_sil24, pata_ns87415.
The problem can be reproduced by using sym53c8xx or mptsi and blacklisting all others.

Helge
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From: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Date: Wed, 24 Feb 2016 19:27:49 +0530

> Convert a call to init_timer and accompanying intializations of
> the timer's data and function fields to a call to setup_timer.
> 
> The Coccinelle semantic patch that fixes this problem is
> as follows:
> 
> // <smpl>
> @@
> expression t,f,d;
> @@
> 
> -init_timer(&t);
> +setup_timer(&t,f,d);
> -t.data = d;
> -t.function = f;
> // </smpl>
> 
> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>

Applied.
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From - Thu Nov 08 21:38:33 2018
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc
Subject: [PATCH 0/6] rtc: generic: follow up for COMPILE_TEST
Date: Tue,  1 Mar 2016 17:59:56 +0100
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Approved: news@gmane.org
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	Kyle McMartin <kyle@mcmartin.ca>, rtc-linux@googlegroups.com,
	Alessandro Zummo <a.zummo@towertech.it>,
	linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-m68k@lists.linux-m68k.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/53476>

Today's linux-next kernel allowed building the rtc-generic
driver (and most other rtc drivers) on all architectures,
but this caused some errors on architectures without asm/rtc.h.

This series reworks that driver to avoid the dependency,
and simplifies all four implementations. My first approach
was to split the driver into four separate drivers, but
that didn't feel right when three of them have their own
multiplexors.

The first five patches can be applied independent of one other,
while patch 6 is optional and can be applied when all others
are merged. Alternatively, they can all go in through the
rtc tree. I compile-tested only the powerpc and sh targets for
which I happened to have cross-compilers installed.

	Arnd

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From - Thu Nov 08 21:38:33 2018
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 1/6] rtc: generic: allow building on all architectures
Date: Tue,  1 Mar 2016 17:59:57 +0100
Lines: 55
Approved: news@gmane.org
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Cc: linux-arm-kernel@lists.infradead.org,
	Kyle McMartin <kyle@mcmartin.ca>, rtc-linux@googlegroups.com,
	Alessandro Zummo <a.zummo@towertech.it>,
	linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
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To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/8318>

There are four architectures using this driver, but since we can
build it with COMPILE_TEST, we should try dealing with the absence
of the asm/rtc.h header file, to avoid getting a build error:

drivers/rtc/rtc-generic.c:12:21: fatal error: asm/rtc.h: No such file or directory

This creates an alternative use of the driver, allowing architectures
to pass a set of rtc_class_ops in platform data. We can convert the
four architectures to use this and then remove the original
code.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/rtc/rtc-generic.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
index e782ebd719b2..d726c6aa96a8 100644
--- a/drivers/rtc/rtc-generic.c
+++ b/drivers/rtc/rtc-generic.c
@@ -9,6 +9,8 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 
+#if defined(CONFIG_M68K) || defined(CONFIG_PARISC) || \
+    defined(CONFIG_PPC) || defined(CONFIG_SUPERH32)
 #include <asm/rtc.h>
 
 static int generic_get_time(struct device *dev, struct rtc_time *tm)
@@ -33,13 +35,21 @@ static const struct rtc_class_ops generic_rtc_ops = {
 	.read_time = generic_get_time,
 	.set_time = generic_set_time,
 };
+#else
+#define generic_rtc_ops *(struct rtc_class_ops*)NULL
+#endif
 
 static int __init generic_rtc_probe(struct platform_device *dev)
 {
 	struct rtc_device *rtc;
+	const struct rtc_class_ops *ops;
+
+	ops = dev_get_platdata(&dev->dev);
+	if (!ops)
+		ops = &generic_rtc_ops;
 
 	rtc = devm_rtc_device_register(&dev->dev, "rtc-generic",
-					&generic_rtc_ops, THIS_MODULE);
+					ops, THIS_MODULE);
 	if (IS_ERR(rtc))
 		return PTR_ERR(rtc);
 
-- 
2.7.0


From - Thu Nov 08 21:38:33 2018
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.parisc
Subject: [PATCH 2/6] m68k: rtc: provide rtc_class_ops directly
Date: Tue,  1 Mar 2016 17:59:58 +0100
Lines: 58
Approved: news@gmane.org
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Cc: linux-arm-kernel@lists.infradead.org,
	Kyle McMartin <kyle@mcmartin.ca>, rtc-linux@googlegroups.com,
	Alessandro Zummo <a.zummo@towertech.it>,
	linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
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To: Alexandre Belloni <alexandre.belloni@free-electrons.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2165431>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and m68k has another abstraction on top, which is a bit
silly.

This changes the m68k rtc-generic device to provide its
rtc_class_ops directly, to reduce the number of layers
by one.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/m68k/kernel/time.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 3857737e3958..773b2187210d 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -87,6 +87,23 @@ void read_persistent_clock(struct timespec *ts)
 }
 
 #ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	mach_hwclk(0, tm);
+	return rtc_valid_tm(tm);
+}
+
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	if (mach_hwclk(1, tm) < 0)
+		return -EOPNOTSUPP;
+	return 0;
+}
+
+static const struct rtc_class_ops generic_rtc_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
 
 static int __init rtc_init(void)
 {
@@ -95,7 +112,10 @@ static int __init rtc_init(void)
 	if (!mach_hwclk)
 		return -ENODEV;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	/* or just call devm_rtc_device_register instead? */
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &generic_rtc_ops,
+					     sizeof(generic_rtc_ops));
 	return PTR_ERR_OR_ZERO(pdev);
 }
 
-- 
2.7.0



From - Thu Nov 08 21:38:33 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.parisc
Subject: [PATCH 4/6] parisc: rtc: provide rtc_class_ops directly
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To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2165433>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and on pa-risc, that is implemented using an open-coded
version of rtc_time_to_tm/rtc_tm_to_time.

This changes the parisc rtc-generic device to provide its
rtc_class_ops directly, using the normal helper functions,
which makes this y2038 safe (on 32-bit) and simplifies
the implementation.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/parisc/kernel/time.c | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 400acac0a304..176ef5c2aa82 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -12,6 +12,7 @@
  */
 #include <linux/errno.h>
 #include <linux/module.h>
+#include <linux/rtc.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/param.h>
@@ -224,11 +225,43 @@ void __init start_cpu_itimer(void)
 	per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	struct pdc_tod tod_data;
+
+	memset(wtime, 0, sizeof(*wtime));
+	if (pdc_tod_read(&tod_data) < 0)
+		return -EOPNOTSUPP;
+
+	/* we treat tod_sec as unsigned, so this can work until year 2106 */
+	rtc_time64_to_tm(tod_data.tod_sec, &tm);
+	return rtc_valid_tm(tm);
+}
+
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	time64_t secs = rtc_tm_to_time64(tm);
+
+	if (pdc_tod_set(secs, 0) < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
+static const struct rtc_class_ops rtc_generic_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
+
 static int __init rtc_init(void)
 {
 	struct platform_device *pdev;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &rtc_generic_ops,
+					     sizeof(rtc_generic_ops));
+
+
 	return PTR_ERR_OR_ZERO(pdev);
 }
 device_initcall(rtc_init);
-- 
2.7.0



From - Thu Nov 08 21:38:33 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.parisc
Subject: [PATCH 3/6] powerpc: rtc: provide rtc_class_ops directly
Date: Tue,  1 Mar 2016 17:59:59 +0100
Lines: 62
Approved: news@gmane.org
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Cc: linux-arm-kernel@lists.infradead.org,
	Kyle McMartin <kyle@mcmartin.ca>, rtc-linux@googlegroups.com,
	Alessandro Zummo <a.zummo@towertech.it>,
	linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
	linux-parisc@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	Arnd Bergmann <arnd@arndb.de>, linux-kernel@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2165434>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and powerpc has another abstraction on top, which is a bit
silly.

This changes the powerpc rtc-generic device to provide its
rtc_class_ops directly, to reduce the number of layers
by one.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/powerpc/kernel/time.c | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 81b0900a39ee..84a1228be617 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -1080,6 +1080,28 @@ void calibrate_delay(void)
 	loops_per_jiffy = tb_ticks_per_jiffy;
 }
 
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	ppc_md.get_rtc_time(tm);
+	return rtc_valid_tm(tm);
+}
+
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	if (!ppc_md.set_rtc_time)
+		return -EOPNOTSUPP;
+
+	if (ppc_md.set_rtc_time(tm) < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
+static const struct rtc_class_ops rtc_generic_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
+
 static int __init rtc_init(void)
 {
 	struct platform_device *pdev;
@@ -1087,7 +1109,9 @@ static int __init rtc_init(void)
 	if (!ppc_md.get_rtc_time)
 		return -ENODEV;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &rtc_generic_ops,
+					     sizeof(rtc_generic_ops));
 
 	return PTR_ERR_OR_ZERO(pdev);
 }
-- 
2.7.0



From - Thu Nov 08 21:38:33 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel
Subject: [PATCH 5/6] sh: rtc: provide rtc_class_ops directly
Date: Tue,  1 Mar 2016 18:00:01 +0100
Lines: 81
Approved: news@gmane.org
Message-ID: <1456851608-3374907-6-git-send-email-arnd@arndb.de>
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Cc: linux-arm-kernel@lists.infradead.org,
	Kyle McMartin <kyle@mcmartin.ca>, rtc-linux@googlegroups.com,
	Alessandro Zummo <a.zummo@towertech.it>,
	linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
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	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>, linux-kernel@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26505>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and on sh, that goes through another indirection using
the rtc_sh_get_time/rtc_sh_set_time functions.

This changes the sh rtc-generic device to provide its
rtc_class_ops directly, skipping one of the abstraction
levels.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/sh/kernel/time.c | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index d6d0a986c6e9..92cd676970d9 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -50,27 +50,30 @@ int update_persistent_clock(struct timespec now)
 }
 #endif
 
-unsigned int get_rtc_time(struct rtc_time *tm)
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
 {
-	if (rtc_sh_get_time != null_rtc_get_time) {
-		struct timespec tv;
+	struct timespec tv;
 
-		rtc_sh_get_time(&tv);
-		rtc_time_to_tm(tv.tv_sec, tm);
-	}
-
-	return RTC_24H;
+	rtc_sh_get_time(&tv);
+	rtc_time_to_tm(tv.tv_sec, tm);
+	return 0;
 }
-EXPORT_SYMBOL(get_rtc_time);
 
-int set_rtc_time(struct rtc_time *tm)
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
 {
 	unsigned long secs;
 
 	rtc_tm_to_time(tm, &secs);
-	return rtc_sh_set_time(secs);
+	if (!rtc_sh_set_time || rtc_sh_set_time(secs) < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
 }
-EXPORT_SYMBOL(set_rtc_time);
+
+static const struct rtc_class_ops rtc_generic_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
 
 static int __init rtc_generic_init(void)
 {
@@ -79,7 +82,10 @@ static int __init rtc_generic_init(void)
 	if (rtc_sh_get_time == null_rtc_get_time)
 		return -ENODEV;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &rtc_generic_ops,
+					     sizeof(rtc_generic_ops));
+
 
 	return PTR_ERR_OR_ZERO(pdev);
 }
-- 
2.7.0

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From - Thu Nov 08 21:38:33 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 6/6] rtc: generic: remove get_rtc_time/set_rtc_time wrappers
Date: Tue,  1 Mar 2016 18:00:02 +0100
Lines: 62
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/8322>

All architectures using this driver are now converted to
provide their own operations, so this one can be turned
into a trivial stub driver relying on its platform data.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/rtc/rtc-generic.c | 36 +-----------------------------------
 1 file changed, 1 insertion(+), 35 deletions(-)

diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
index d726c6aa96a8..1bf5d2347928 100644
--- a/drivers/rtc/rtc-generic.c
+++ b/drivers/rtc/rtc-generic.c
@@ -9,44 +9,10 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 
-#if defined(CONFIG_M68K) || defined(CONFIG_PARISC) || \
-    defined(CONFIG_PPC) || defined(CONFIG_SUPERH32)
-#include <asm/rtc.h>
-
-static int generic_get_time(struct device *dev, struct rtc_time *tm)
-{
-	unsigned int ret = get_rtc_time(tm);
-
-	if (ret & RTC_BATT_BAD)
-		return -EOPNOTSUPP;
-
-	return rtc_valid_tm(tm);
-}
-
-static int generic_set_time(struct device *dev, struct rtc_time *tm)
-{
-	if (set_rtc_time(tm) < 0)
-		return -EOPNOTSUPP;
-
-	return 0;
-}
-
-static const struct rtc_class_ops generic_rtc_ops = {
-	.read_time = generic_get_time,
-	.set_time = generic_set_time,
-};
-#else
-#define generic_rtc_ops *(struct rtc_class_ops*)NULL
-#endif
-
 static int __init generic_rtc_probe(struct platform_device *dev)
 {
 	struct rtc_device *rtc;
-	const struct rtc_class_ops *ops;
-
-	ops = dev_get_platdata(&dev->dev);
-	if (!ops)
-		ops = &generic_rtc_ops;
+	const struct rtc_class_ops *ops = dev_get_platdata(&dev->dev);
 
 	rtc = devm_rtc_device_register(&dev->dev, "rtc-generic",
 					ops, THIS_MODULE);
-- 
2.7.0


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X-Mozilla-Keys:                                                                                 
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Subject: Re: [PATCH 4/6] parisc: rtc: provide rtc_class_ops directly
Date: Wed, 2 Mar 2016 01:19:46 +0800
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--TB36FDmn/VVEgNH/
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

Hi Arnd,

[auto build test ERROR on abelloni/rtc-next]
[also build test ERROR on v4.5-rc6 next-20160301]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Arnd-Bergmann/rtc-generic-follow-up-for-COMPILE_TEST/20160302-011032
base:   https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next
config: parisc-allyesconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=parisc 

All error/warnings (new ones prefixed by >>):

   arch/parisc/kernel/time.c: In function 'rtc_generic_get_time':
>> arch/parisc/kernel/time.c:232:9: error: 'wtime' undeclared (first use in this function)
     memset(wtime, 0, sizeof(*wtime));
            ^
   arch/parisc/kernel/time.c:232:9: note: each undeclared identifier is reported only once for each function it appears in
>> arch/parisc/kernel/time.c:237:2: warning: passing argument 2 of 'rtc_time64_to_tm' from incompatible pointer type
     rtc_time64_to_tm(tod_data.tod_sec, &tm);
     ^
   In file included from arch/parisc/kernel/time.c:15:0:
   include/linux/rtc.h:23:13: note: expected 'struct rtc_time *' but argument is of type 'struct rtc_time **'
    extern void rtc_time64_to_tm(time64_t time, struct rtc_time *tm);
                ^

vim +/wtime +232 arch/parisc/kernel/time.c

   226	}
   227	
   228	static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
   229	{
   230		struct pdc_tod tod_data;
   231	
 > 232		memset(wtime, 0, sizeof(*wtime));
   233		if (pdc_tod_read(&tod_data) < 0)
   234			return -EOPNOTSUPP;
   235	
   236		/* we treat tod_sec as unsigned, so this can work until year 2106 */
 > 237		rtc_time64_to_tm(tod_data.tod_sec, &tm);
   238		return rtc_valid_tm(tm);
   239	}
   240	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From - Thu Nov 08 21:38:33 2018
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Subject: Re: [PATCH 3/6] powerpc: rtc: provide rtc_class_ops directly
Date: Wed, 2 Mar 2016 02:37:14 +0800
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Cc: kbuild-all@01.org,
	Alexandre Belloni <alexandre.belloni@free-electrons.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
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Content-Type: text/plain; charset=us-ascii
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Hi Arnd,

[auto build test ERROR on abelloni/rtc-next]
[also build test ERROR on v4.5-rc6 next-20160301]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Arnd-Bergmann/rtc-generic-follow-up-for-COMPILE_TEST/20160302-011032
base:   https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next
config: powerpc-allnoconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   arch/powerpc/kernel/built-in.o: In function `rtc_generic_get_time':
>> time.c:(.text+0x4c58): undefined reference to `rtc_valid_tm'

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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--X1bOJ3K7DJ5YkBrT--

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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH 3/6] powerpc: rtc: provide rtc_class_ops directly
Date: Tue, 01 Mar 2016 21:31:09 +0100
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Cc: kbuild test robot <lkp@intel.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26509>

On Wednesday 02 March 2016 02:37:14 kbuild test robot wrote:
> [auto build test ERROR on abelloni/rtc-next]
> [also build test ERROR on v4.5-rc6 next-20160301]
> [if your patch is applied to the wrong git tree, please drop us a note to help improving the system]
> 
> url:    https://github.com/0day-ci/linux/commits/Arnd-Bergmann/rtc-generic-follow-up-for-COMPILE_TEST/20160302-011032
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next
> config: powerpc-allnoconfig (attached as .config)
> reproduce:
>         wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         make.cross ARCH=powerpc 
> 
> All errors (new ones prefixed by >>):
> 
>    arch/powerpc/kernel/built-in.o: In function `rtc_generic_get_time':
> >> time.c:(.text+0x4c58): undefined reference to `rtc_valid_tm'
> 

I fixed up the powerpc and parisc patches now, will resend them
after getting some feedback on the overall approach.

	Arnd
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Wire up copy_file_range syscall
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 35bdccb..b75039f 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -361,8 +361,9 @@
 #define __NR_membarrier		(__NR_Linux + 343)
 #define __NR_userfaultfd	(__NR_Linux + 344)
 #define __NR_mlock2		(__NR_Linux + 345)
+#define __NR_copy_file_range	(__NR_Linux + 346)
 
-#define __NR_Linux_syscalls	(__NR_mlock2 + 1)
+#define __NR_Linux_syscalls	(__NR_copy_file_range + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index d4ffcfb..585d50f 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -441,6 +441,7 @@
 	ENTRY_SAME(membarrier)
 	ENTRY_SAME(userfaultfd)
 	ENTRY_SAME(mlock2)		/* 345 */
+	ENTRY_SAME(copy_file_range)
 
 
 .ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
--
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From - Thu Nov 08 21:38:34 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel
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Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>,
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To: Arnd Bergmann <arnd@arndb.de>
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Hi Arnd,

On Tue, Mar 1, 2016 at 5:59 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> There are four architectures using this driver, but since we can
> build it with COMPILE_TEST, we should try dealing with the absence
> of the asm/rtc.h header file, to avoid getting a build error:
>
> drivers/rtc/rtc-generic.c:12:21: fatal error: asm/rtc.h: No such file or directory
>
> This creates an alternative use of the driver, allowing architectures
> to pass a set of rtc_class_ops in platform data. We can convert the
> four architectures to use this and then remove the original
> code.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  drivers/rtc/rtc-generic.c | 12 +++++++++++-
>  1 file changed, 11 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
> index e782ebd719b2..d726c6aa96a8 100644
> --- a/drivers/rtc/rtc-generic.c
> +++ b/drivers/rtc/rtc-generic.c
> @@ -9,6 +9,8 @@
>  #include <linux/platform_device.h>
>  #include <linux/rtc.h>
>
> +#if defined(CONFIG_M68K) || defined(CONFIG_PARISC) || \
> +    defined(CONFIG_PPC) || defined(CONFIG_SUPERH32)
>  #include <asm/rtc.h>
>
>  static int generic_get_time(struct device *dev, struct rtc_time *tm)
> @@ -33,13 +35,21 @@ static const struct rtc_class_ops generic_rtc_ops = {
>         .read_time = generic_get_time,
>         .set_time = generic_set_time,
>  };
> +#else
> +#define generic_rtc_ops *(struct rtc_class_ops*)NULL
> +#endif
>
>  static int __init generic_rtc_probe(struct platform_device *dev)
>  {
>         struct rtc_device *rtc;
> +       const struct rtc_class_ops *ops;
> +
> +       ops = dev_get_platdata(&dev->dev);
> +       if (!ops)
> +               ops = &generic_rtc_ops;

I hope no compiler version treats "&*(struct rtc_class_ops*)NULL" as
undefined behavior?

>
>         rtc = devm_rtc_device_register(&dev->dev, "rtc-generic",
> -                                       &generic_rtc_ops, THIS_MODULE);
> +                                       ops, THIS_MODULE);
>         if (IS_ERR(rtc))
>                 return PTR_ERR(rtc);

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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On Wednesday 02 March 2016 09:57:27 Geert Uytterhoeven wrote:
> > @@ -33,13 +35,21 @@ static const struct rtc_class_ops generic_rtc_ops = {
> >         .read_time = generic_get_time,
> >         .set_time = generic_set_time,
> >  };
> > +#else
> > +#define generic_rtc_ops *(struct rtc_class_ops*)NULL
> > +#endif
> >
> >  static int __init generic_rtc_probe(struct platform_device *dev)
> >  {
> >         struct rtc_device *rtc;
> > +       const struct rtc_class_ops *ops;
> > +
> > +       ops = dev_get_platdata(&dev->dev);
> > +       if (!ops)
> > +               ops = &generic_rtc_ops;
> 
> I hope no compiler version treats "&*(struct rtc_class_ops*)NULL" as
> undefined behavior?

It's a bit odd, but I think it's syntactically correct C, and not
much too different from 

#define offsetof(TYPE, MEMBER)  ((size_t)&((TYPE *)0)->MEMBER)

is it? My last patch gets rid of it again.

	Arnd

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Subject: Re: [PATCH 1/6] rtc: generic: allow building on all architectures
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Geert Uytterhoeven <geert@linux-m68k.org> writes:

>> +#else
>> +#define generic_rtc_ops *(struct rtc_class_ops*)NULL
>> +#endif
>>
>>  static int __init generic_rtc_probe(struct platform_device *dev)
>>  {
>>         struct rtc_device *rtc;
>> +       const struct rtc_class_ops *ops;
>> +
>> +       ops = dev_get_platdata(&dev->dev);
>> +       if (!ops)
>> +               ops = &generic_rtc_ops;
>
> I hope no compiler version treats "&*(struct rtc_class_ops*)NULL" as
> undefined behavior?

Yes, that is guaranteed, the operations cancel each other (6.5.3.2#3: If
the operand is the result of a unary * operator, neither that operator
nor the & operator is evaluated and the result is as if both were
omitted).

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

From - Thu Nov 08 21:38:34 2018
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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 1/6] rtc: generic: allow building on all architectures
Date: Wed, 2 Mar 2016 10:39:15 +0100
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	"linux-arm-kernel@lists.infradead.org" 
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Xref: news.gmane.org gmane.linux.ports.sh.devel:53495 gmane.linux.ports.arm.kernel:483333 gmane.linux.ports.ppc64.devel:124356 gmane.linux.ports.parisc:26514 gmane.linux.kernel:2166578
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On Wed, Mar 2, 2016 at 10:28 AM, Andreas Schwab <schwab@linux-m68k.org> wrote:
> Geert Uytterhoeven <geert@linux-m68k.org> writes:
>
>>> +#else
>>> +#define generic_rtc_ops *(struct rtc_class_ops*)NULL
>>> +#endif
>>>
>>>  static int __init generic_rtc_probe(struct platform_device *dev)
>>>  {
>>>         struct rtc_device *rtc;
>>> +       const struct rtc_class_ops *ops;
>>> +
>>> +       ops = dev_get_platdata(&dev->dev);
>>> +       if (!ops)
>>> +               ops = &generic_rtc_ops;
>>
>> I hope no compiler version treats "&*(struct rtc_class_ops*)NULL" as
>> undefined behavior?
>
> Yes, that is guaranteed, the operations cancel each other (6.5.3.2#3: If
> the operand is the result of a unary * operator, neither that operator
> nor the & operator is evaluated and the result is as if both were
> omitted).

Thanks for confirming.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc architecture updates for v4.5
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Hi Linus,

please pull three patches for the parisc architecture for kernel v4.5 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.5-2

We wire up the copy_file_range syscall, fix two bugs in the parisc ptrace code
and have a trivial fix for floppy.h to clarify an expression with parentheses.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (3):
      parisc: Use parentheses around expression in floppy.h
      parisc: Fix ptrace syscall number and return value modification
      parisc: Wire up copy_file_range syscall

 arch/parisc/include/asm/floppy.h      |  2 +-
 arch/parisc/include/uapi/asm/unistd.h |  3 ++-
 arch/parisc/kernel/ptrace.c           | 16 +++++++++++-----
 arch/parisc/kernel/syscall.S          |  5 ++++-
 arch/parisc/kernel/syscall_table.S    |  1 +
 5 files changed, 19 insertions(+), 8 deletions(-)
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Newsgroups: gmane.linux.scsi,gmane.linux.ports.parisc
Subject: Re: [BUG] "block: make generic_make_request handle arbitrarily
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Cc: Helge Deller <deller@gmx.de>, linux-block@vger.kernel.org,
	Linux SCSI List <linux-scsi@vger.kernel.org>,
	linux-parisc List <linux-parisc@vger.kernel.org>,
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To: Ming Lei <tom.leiming@gmail.com>,
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On Thu, 2016-02-25 at 11:38 +0800, Ming Lei wrote:
> On Thu, Feb 25, 2016 at 7:28 AM, John David Anglin <
> dave.anglin@bell.net> wrote:
> > On 2016-02-24, at 4:36 PM, Helge Deller wrote:
> > 
> > > Maybe Dave has more luck, otherwise I'll continue to try to get
> > > some info.
> > 
> > I tried your patch on the commit in linux-block which first failed
> > to boot.  As with Helge, the
> > system crashed and no useful data was output on console.  I then
> > applied following patch
> > to give some extra segments and tired again:
> > 
> > diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
> > index b1a2631..b421f03 100644
> > --- a/drivers/scsi/scsi_lib.c
> > +++ b/drivers/scsi/scsi_lib.c
> > @@ -595,6 +595,11 @@ static int scsi_alloc_sgtable(struct
> > scsi_data_buffer *sdb, int nents, bool mq)
> > 
> >         BUG_ON(!nents);
> > 
> > +       /* Provide extra entries in case of split.  */
> > +       nents += 8;
> > +       if (nents > SCSI_MAX_SG_SEGMENTS)
> > +               nents = SCSI_MAX_SG_SEGMENTS;
> > +
> 
> Yeah, this is needed for sake of safety.
> 
> >         if (mq) {
> >                 if (nents <= SCSI_MAX_SG_SEGMENTS) {
> >                         sdb->table.nents = nents;
> > 
> > The attached file shows the crash in first boot.  The second boot
> > was successful and various output
> > was generated by your check code.
> 
> From the following log(just select one simple, and looks all are
> similar) in
> 2nd boot, the bi_phys_segments is figured out as one by block core
> , which is wrong because the max segment size is 64k according to
> your investigation in the below link, but the whole req/bio is
> 192k(4k*48).
> 
>     http://www.spinics.net/lists/linux-parisc/msg06749.html
> 
> Looks weird, it shouldn't have happened because
> blk_bio_segment_split()
> does respect the max segment size limit.
> 
> BTW, what is the scsi driver for the device?
> 
> blk_rq_map_sg: merge bug: 3 1, extra_len 0, dma_drain 0
> check_bvec: dump bvec for 000000007e53c5f0(f:24490000, t:1)
>             0: 0 4096 245852 000000007e2c4c40
>             1: 0 4096 245853 000000007e2c4c40
>             2: 0 4096 245854 000000007e2c4c40
>             3: 0 4096 245855 000000007e2c4c40
>             4: 0 4096 245856 000000007e2c4c40
>             5: 0 4096 245857 000000007e2c4c40
>             6: 0 4096 245858 000000007e2c4c40
>             7: 0 4096 245859 000000007e2c4c40
>             8: 0 4096 245860 000000007e2c4c40
>             9: 0 4096 245861 000000007e2c4c40
>            10: 0 4096 245862 000000007e2c4c40
>            11: 0 4096 245863 000000007e2c4c40
>            12: 0 4096 245864 000000007e2c4c40
>            13: 0 4096 245865 000000007e2c4c40
>            14: 0 4096 245866 000000007e2c4c40
>            15: 0 4096 245867 000000007e2c4c40
>            16: 0 4096 245868 000000007e2c4c40
>            17: 0 4096 245869 000000007e2c4c40
>            18: 0 4096 245870 000000007e2c4c40
>            19: 0 4096 245871 000000007e2c4c40
>            20: 0 4096 245872 000000007e2c4c40
>            21: 0 4096 245873 000000007e2c4c40
>            22: 0 4096 245874 000000007e2c4c40
>            23: 0 4096 245875 000000007e2c4c40
>            24: 0 4096 245876 000000007e2c4c40
>            25: 0 4096 245877 000000007e2c4c40
>            26: 0 4096 245878 000000007e2c4c40
>            27: 0 4096 245879 000000007e2c4c40
>            28: 0 4096 245880 000000007e2c4c40
>            29: 0 4096 245881 000000007e2c4c40
>            30: 0 4096 245882 000000007e2c4c40
>            31: 0 4096 245883 000000007e2c4c40
>            32: 0 4096 245884 000000007e2c4c40
>            33: 0 4096 245885 000000007e2c4c40
>            34: 0 4096 245886 000000007e2c4c40
>            35: 0 4096 245887 000000007e2c4c40
>            36: 0 4096 245888 000000007e2c4c40
>            37: 0 4096 245889 000000007e2c4c40
>            38: 0 4096 245890 000000007e2c4c40
>            39: 0 4096 245891 000000007e2c4c40
>            40: 0 4096 245892 000000007e2c4c40
>            41: 0 4096 245893 000000007e2c4c40
>            42: 0 4096 245894 000000007e2c4c40
>            43: 0 4096 245895 000000007e2c4c40
>            44: 0 4096 245896 000000007e2c4c40
>            45: 0 4096 245897 000000007e2c4c40
>            46: 0 4096 245898 000000007e2c4c40
>            47: 0 4096 245899 000000007e2c4c40


We've provided all the information you asked for, what's the next step
on this, or do we have to unwind the bio splitting code with reverts
until it starts working?

Thanks,

James


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From: Ming Lei <tom.leiming@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: Re: [BUG] "block: make generic_make_request handle arbitrarily sized
 bios" breaks boot on parisc-linux
Date: Wed, 9 Mar 2016 22:43:52 +0800
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On Wed, Mar 9, 2016 at 8:55 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Thu, 2016-02-25 at 11:38 +0800, Ming Lei wrote:
>> On Thu, Feb 25, 2016 at 7:28 AM, John David Anglin <
>> dave.anglin@bell.net> wrote:
>> > On 2016-02-24, at 4:36 PM, Helge Deller wrote:
>> >
>> > > Maybe Dave has more luck, otherwise I'll continue to try to get
>> > > some info.
>> >
>> > I tried your patch on the commit in linux-block which first failed
>> > to boot.  As with Helge, the
>> > system crashed and no useful data was output on console.  I then
>> > applied following patch
>> > to give some extra segments and tired again:
>> >
>> > diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
>> > index b1a2631..b421f03 100644
>> > --- a/drivers/scsi/scsi_lib.c
>> > +++ b/drivers/scsi/scsi_lib.c
>> > @@ -595,6 +595,11 @@ static int scsi_alloc_sgtable(struct
>> > scsi_data_buffer *sdb, int nents, bool mq)
>> >
>> >         BUG_ON(!nents);
>> >
>> > +       /* Provide extra entries in case of split.  */
>> > +       nents += 8;
>> > +       if (nents > SCSI_MAX_SG_SEGMENTS)
>> > +               nents = SCSI_MAX_SG_SEGMENTS;
>> > +
>>
>> Yeah, this is needed for sake of safety.
>>
>> >         if (mq) {
>> >                 if (nents <= SCSI_MAX_SG_SEGMENTS) {
>> >                         sdb->table.nents = nents;
>> >
>> > The attached file shows the crash in first boot.  The second boot
>> > was successful and various output
>> > was generated by your check code.
>>
>> From the following log(just select one simple, and looks all are
>> similar) in
>> 2nd boot, the bi_phys_segments is figured out as one by block core
>> , which is wrong because the max segment size is 64k according to
>> your investigation in the below link, but the whole req/bio is
>> 192k(4k*48).
>>
>>     http://www.spinics.net/lists/linux-parisc/msg06749.html
>>
>> Looks weird, it shouldn't have happened because
>> blk_bio_segment_split()
>> does respect the max segment size limit.
>>
>> BTW, what is the scsi driver for the device?
>>
>> blk_rq_map_sg: merge bug: 3 1, extra_len 0, dma_drain 0
>> check_bvec: dump bvec for 000000007e53c5f0(f:24490000, t:1)
>>             0: 0 4096 245852 000000007e2c4c40
>>             1: 0 4096 245853 000000007e2c4c40
>>             2: 0 4096 245854 000000007e2c4c40
>>             3: 0 4096 245855 000000007e2c4c40
>>             4: 0 4096 245856 000000007e2c4c40
>>             5: 0 4096 245857 000000007e2c4c40
>>             6: 0 4096 245858 000000007e2c4c40
>>             7: 0 4096 245859 000000007e2c4c40
>>             8: 0 4096 245860 000000007e2c4c40
>>             9: 0 4096 245861 000000007e2c4c40
>>            10: 0 4096 245862 000000007e2c4c40
>>            11: 0 4096 245863 000000007e2c4c40
>>            12: 0 4096 245864 000000007e2c4c40
>>            13: 0 4096 245865 000000007e2c4c40
>>            14: 0 4096 245866 000000007e2c4c40
>>            15: 0 4096 245867 000000007e2c4c40
>>            16: 0 4096 245868 000000007e2c4c40
>>            17: 0 4096 245869 000000007e2c4c40
>>            18: 0 4096 245870 000000007e2c4c40
>>            19: 0 4096 245871 000000007e2c4c40
>>            20: 0 4096 245872 000000007e2c4c40
>>            21: 0 4096 245873 000000007e2c4c40
>>            22: 0 4096 245874 000000007e2c4c40
>>            23: 0 4096 245875 000000007e2c4c40
>>            24: 0 4096 245876 000000007e2c4c40
>>            25: 0 4096 245877 000000007e2c4c40
>>            26: 0 4096 245878 000000007e2c4c40
>>            27: 0 4096 245879 000000007e2c4c40
>>            28: 0 4096 245880 000000007e2c4c40
>>            29: 0 4096 245881 000000007e2c4c40
>>            30: 0 4096 245882 000000007e2c4c40
>>            31: 0 4096 245883 000000007e2c4c40
>>            32: 0 4096 245884 000000007e2c4c40
>>            33: 0 4096 245885 000000007e2c4c40
>>            34: 0 4096 245886 000000007e2c4c40
>>            35: 0 4096 245887 000000007e2c4c40
>>            36: 0 4096 245888 000000007e2c4c40
>>            37: 0 4096 245889 000000007e2c4c40
>>            38: 0 4096 245890 000000007e2c4c40
>>            39: 0 4096 245891 000000007e2c4c40
>>            40: 0 4096 245892 000000007e2c4c40
>>            41: 0 4096 245893 000000007e2c4c40
>>            42: 0 4096 245894 000000007e2c4c40
>>            43: 0 4096 245895 000000007e2c4c40
>>            44: 0 4096 245896 000000007e2c4c40
>>            45: 0 4096 245897 000000007e2c4c40
>>            46: 0 4096 245898 000000007e2c4c40
>>            47: 0 4096 245899 000000007e2c4c40
>
>
> We've provided all the information you asked for, what's the next step
> on this, or do we have to unwind the bio splitting code with reverts
> until it starts working?

John, Helge, and I did discuss the problem for a while privately, and looks
it is related with compiler.  Last time, I sent one patch which can make the
issue disappear, but the main change is just invovled with the below:

 struct bio_vec {
     struct page    *bv_page;
-    unsigned int    bv_len;
+    unsigned int    bv_seg:8;
+    unsigned int    bv_len:24;
     unsigned int    bv_offset;
 };

Maybe John and Helge have some update recently?

The logic in blk_bio_segment_split() is correct, and it does respect the max
segment size limit.

Thanks,
Ming Lei
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From - Thu Nov 08 21:38:34 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.scsi,gmane.linux.ports.parisc
Subject: Re: [BUG] "block: make generic_make_request handle arbitrarily sized
 bios" breaks boot on parisc-linux
Date: Wed, 9 Mar 2016 10:15:54 -0500
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Cc: Helge Deller <deller@gmx.de>, linux-block@vger.kernel.org,
	Linux SCSI List <linux-scsi@vger.kernel.org>,
	linux-parisc List <linux-parisc@vger.kernel.org>,
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To: Ming Lei <tom.leiming@gmail.com>,
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On 2016-03-09 9:43 AM, Ming Lei wrote:
>> We've provided all the information you asked for, what's the next step
>> >on this, or do we have to unwind the bio splitting code with reverts
>> >until it starts working?
> John, Helge, and I did discuss the problem for a while privately, and looks
> it is related with compiler.  Last time, I sent one patch which can make the
> issue disappear, but the main change is just invovled with the below:
>
>   struct bio_vec {
>       struct page    *bv_page;
> -    unsigned int    bv_len;
> +    unsigned int    bv_seg:8;
> +    unsigned int    bv_len:24;
>       unsigned int    bv_offset;
>   };
>
> Maybe John and Helge have some update recently?
>
> The logic in blk_bio_segment_split() is correct, and it does respect the max
> segment size limit.
Helge has found that tagging blk_bio_segment_split() with "__attribute__ 
((optimize("O0")))"
makes the issue disappear.  The bug remains if one just adds bv_len to 
the struct without the
bit fields.  Maybe problem is evident from following output which I sent 
to Ming and Helge
last weekend?

blk_rq_map_sg: merge bug: 3 2, extra_len 0, dma_drain 0
check_bvec: dump bvec for 000000007e4efdc0(f:24490000, t:1)
             0: 0 4096 246503 000000007e4a4f00(0, 94208, 1)
             1: 0 4096 246504 000000007e4a4f00(0, 94208, 1)
             2: 0 4096 246505 000000007e4a4f00(0, 94208, 1)
             3: 0 4096 246506 000000007e4a4f00(0, 94208, 1)
             4: 0 4096 246538 000000007e4a4f00(0, 94208, 2)
             5: 0 4096 246539 000000007e4a4f00(0, 94208, 2)
             6: 0 4096 246540 000000007e4a4f00(0, 94208, 2)
             7: 0 4096 246541 000000007e4a4f00(0, 94208, 2)
             8: 0 4096 246542 000000007e4a4f00(0, 94208, 2)
             9: 0 4096 246543 000000007e4a4f00(0, 94208, 2)
            10: 0 4096 246544 000000007e4a4f00(0, 94208, 2)
            11: 0 4096 246545 000000007e4a4f00(0, 94208, 2)
            12: 0 4096 246546 000000007e4a4f00(0, 94208, 2)
            13: 0 4096 246547 000000007e4a4f00(0, 94208, 2)
            14: 0 4096 246548 000000007e4a4f00(0, 94208, 2)
            15: 0 4096 246549 000000007e4a4f00(0, 94208, 2)
            16: 0 4096 246550 000000007e4a4f00(0, 94208, 2)
            17: 0 4096 246551 000000007e4a4f00(0, 94208, 2)
            18: 0 4096 246552 000000007e4a4f00(0, 94208, 2)
            19: 0 4096 246553 000000007e4a4f00(0, 94208, 2)
            20: 0 4096 246554 000000007e4a4f00(0, 94208, 2)
            21: 0 4096 246555 000000007e4a4f00(0, 94208, 2)
            22: 0 4096 246556 000000007e4a4f00(0, 94208, 2)
Kernel panic - not syncing: bad block merge

It seems segment 1 is too small and segment 2 too big?

The general plan is to disable inlining (maybe move 
blk_bio_segment_split() to a separate
function) to try to figure out what is miscompiled.

As you say, this is probably a GCC bug.  However, it's likely a 
middle-end or optimization
bug in the common GCC code.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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From - Thu Nov 08 21:38:34 2018
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From: Ming Lei <tom.leiming@gmail.com>
Newsgroups: gmane.linux.scsi,gmane.linux.ports.parisc
Subject: Re: [BUG] "block: make generic_make_request handle arbitrarily sized
 bios" breaks boot on parisc-linux
Date: Wed, 9 Mar 2016 23:51:05 +0800
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Approved: news@gmane.org
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On Wed, Mar 9, 2016 at 11:15 PM, John David Anglin <dave.anglin@bell.net> wrote:
> On 2016-03-09 9:43 AM, Ming Lei wrote:
>>>
>>> We've provided all the information you asked for, what's the next step
>>> >on this, or do we have to unwind the bio splitting code with reverts
>>> >until it starts working?
>>
>> John, Helge, and I did discuss the problem for a while privately, and
>> looks
>> it is related with compiler.  Last time, I sent one patch which can make
>> the
>> issue disappear, but the main change is just invovled with the below:
>>
>>   struct bio_vec {
>>       struct page    *bv_page;
>> -    unsigned int    bv_len;
>> +    unsigned int    bv_seg:8;
>> +    unsigned int    bv_len:24;
>>       unsigned int    bv_offset;
>>   };
>>
>> Maybe John and Helge have some update recently?
>>
>> The logic in blk_bio_segment_split() is correct, and it does respect the
>> max
>> segment size limit.
>
> Helge has found that tagging blk_bio_segment_split() with "__attribute__
> ((optimize("O0")))"
> makes the issue disappear.  The bug remains if one just adds bv_len to the
> struct without the
> bit fields.  Maybe problem is evident from following output which I sent to
> Ming and Helge
> last weekend?
>
> blk_rq_map_sg: merge bug: 3 2, extra_len 0, dma_drain 0
> check_bvec: dump bvec for 000000007e4efdc0(f:24490000, t:1)
>             0: 0 4096 246503 000000007e4a4f00(0, 94208, 1)
>             1: 0 4096 246504 000000007e4a4f00(0, 94208, 1)
>             2: 0 4096 246505 000000007e4a4f00(0, 94208, 1)
>             3: 0 4096 246506 000000007e4a4f00(0, 94208, 1)

The above 4 io vectors belong to one same segment since
they are contineous physically from the 3rd column of PFN,
but the vector 4(the below one) isn't contineous with above 3
vectors, so the following one starts the 2nd segment.

>             4: 0 4096 246538 000000007e4a4f00(0, 94208, 2)
>             5: 0 4096 246539 000000007e4a4f00(0, 94208, 2)
>             6: 0 4096 246540 000000007e4a4f00(0, 94208, 2)
>             7: 0 4096 246541 000000007e4a4f00(0, 94208, 2)
>             8: 0 4096 246542 000000007e4a4f00(0, 94208, 2)
>             9: 0 4096 246543 000000007e4a4f00(0, 94208, 2)
>            10: 0 4096 246544 000000007e4a4f00(0, 94208, 2)
>            11: 0 4096 246545 000000007e4a4f00(0, 94208, 2)
>            12: 0 4096 246546 000000007e4a4f00(0, 94208, 2)
>            13: 0 4096 246547 000000007e4a4f00(0, 94208, 2)
>            14: 0 4096 246548 000000007e4a4f00(0, 94208, 2)
>            15: 0 4096 246549 000000007e4a4f00(0, 94208, 2)
>            16: 0 4096 246550 000000007e4a4f00(0, 94208, 2)
>            17: 0 4096 246551 000000007e4a4f00(0, 94208, 2)
>            18: 0 4096 246552 000000007e4a4f00(0, 94208, 2)
>            19: 0 4096 246553 000000007e4a4f00(0, 94208, 2)

The above 16 vectors are contineous physically, but the segment
size becomes 64K now, so blk_bio_segment_split() should have
seen that and started to split the bio.

>            20: 0 4096 246554 000000007e4a4f00(0, 94208, 2)
>            21: 0 4096 246555 000000007e4a4f00(0, 94208, 2)
>            22: 0 4096 246556 000000007e4a4f00(0, 94208, 2)

Unfortunately the bio isn't splitted at all, that means the following
code is run incorrectly:

if (seg_size + bv.bv_len > queue_max_segment_size(q))
                                goto new_segment;

seg_size should be 64K, and bv.bv_len should be 4K, so
the sum between the two should be bigger than
64K(queue_max_segment_size(q)). Unfortunately, the
code is optimized as run incorrectly.

> Kernel panic - not syncing: bad block merge
>
> It seems segment 1 is too small and segment 2 too big?

segment 1 is correct, and segment 2 becomes too big, but
__blk_segment_map_sg() runs correctly and figured out
this bio has 3 segments, so causes the oops.

>
> The general plan is to disable inlining (maybe move blk_bio_segment_split()
> to a separate
> function) to try to figure out what is miscompiled.
>
> As you say, this is probably a GCC bug.  However, it's likely a middle-end
> or optimization
> bug in the common GCC code.
>
> Dave
>
>
> --
> John David Anglin  dave.anglin@bell.net
>


-- 
Ming Lei
--
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From - Thu Nov 08 21:38:34 2018
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 1/2] MIPS: panic immediately when panic_on_oops
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MIPS wants to sleep 5 seconds before panicking when panic_on_oops is set,
with no apparent reason. Remove this feature, since some users may want
their systems to fail as quickly as possible.

Users who want to delay reboot after panic can use PANIC_TIMEOUT.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
---
 arch/mips/kernel/traps.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index bf14da9..5756740 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -398,11 +398,8 @@ void __noreturn die(const char *str, struct pt_regs *regs)
 	if (in_interrupt())
 		panic("Fatal exception in interrupt");
 
-	if (panic_on_oops) {
-		printk(KERN_EMERG "Fatal exception: panic in 5 seconds");
-		ssleep(5);
+	if (panic_on_oops)
 		panic("Fatal exception");
-	}
 
 	if (regs && kexec_should_crash(current))
 		crash_kexec(regs);
-- 
2.4.0




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Subject: [PATCH 0/2] MIPS/PA-RISC: panic immediately when panic_on_oops
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Hi,

MIPS and PA-RISC want to sleep 5 seconds before panicking when
panic_on_oops is set, with no apparent reason. We should remove
this feature, since some users may want their systems to fail as
quickly as possible.

Users who want to delay reboot after panic can use PANIC_TIMEOUT.

Also, this change will unify the behaviour with other architectures.

Aaro Koskinen (2):
  MIPS: panic immediately when panic_on_oops
  PA-RISC: panic immediately when panic_on_oops

 arch/mips/kernel/traps.c   | 5 +----
 arch/parisc/kernel/traps.c | 5 +----
 2 files changed, 2 insertions(+), 8 deletions(-)

-- 
2.4.0



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PA-RISC wants to sleep 5 seconds before panicking when panic_on_oops
is set, with no apparent reason. Remove this feature, since some users
may want their systems to fail as quickly as possible.

Users who want to delay reboot after panic can use PANIC_TIMEOUT.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
---
 arch/parisc/kernel/traps.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 553b098..16e0735 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -284,11 +284,8 @@ void die_if_kernel(char *str, struct pt_regs *regs, long err)
 	if (in_interrupt())
 		panic("Fatal exception in interrupt");
 
-	if (panic_on_oops) {
-		printk(KERN_EMERG "Fatal exception: panic in 5 seconds\n");
-		ssleep(5);
+	if (panic_on_oops)
 		panic("Fatal exception");
-	}
 
 	oops_exit();
 	do_exit(SIGSEGV);
-- 
2.4.0



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On 09.03.2016 21:08, Aaro Koskinen wrote:
> PA-RISC wants to sleep 5 seconds before panicking when panic_on_oops
> is set, with no apparent reason. 

That's not completely true.
A few years back, when we had lots of crashes, it was very useful to at least
have some time to see the crash before the oops was cleaned from the screen.
Today the parisc port is really stable.

> Remove this feature, since some users
> may want their systems to fail as quickly as possible.
> 
> Users who want to delay reboot after panic can use PANIC_TIMEOUT.

That's OK.

> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>

Acked-by: Helge Deller <deller@gmx.de>


> ---
>  arch/parisc/kernel/traps.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
> index 553b098..16e0735 100644
> --- a/arch/parisc/kernel/traps.c
> +++ b/arch/parisc/kernel/traps.c
> @@ -284,11 +284,8 @@ void die_if_kernel(char *str, struct pt_regs *regs, long err)
>  	if (in_interrupt())
>  		panic("Fatal exception in interrupt");
>  
> -	if (panic_on_oops) {
> -		printk(KERN_EMERG "Fatal exception: panic in 5 seconds\n");
> -		ssleep(5);
> +	if (panic_on_oops)
>  		panic("Fatal exception");
> -	}
>  
>  	oops_exit();
>  	do_exit(SIGSEGV);
> 

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Subject: Re: [BUG] "block: make generic_make_request handle arbitrarily sized
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On 09.03.2016 16:15, John David Anglin wrote:
> On 2016-03-09 9:43 AM, Ming Lei wrote:
>>> We've provided all the information you asked for, what's the next step
>>> >on this, or do we have to unwind the bio splitting code with reverts
>>> >until it starts working?
>> John, Helge, and I did discuss the problem for a while privately, and looks
>> it is related with compiler.  Last time, I sent one patch which can make the
>> issue disappear, but the main change is just invovled with the below:
>>
>>   struct bio_vec {
>>       struct page    *bv_page;
>> -    unsigned int    bv_len;
>> +    unsigned int    bv_seg:8;
>> +    unsigned int    bv_len:24;
>>       unsigned int    bv_offset;
>>   };
>>
>> Maybe John and Helge have some update recently?
>>
>> The logic in blk_bio_segment_split() is correct, and it does respect the max
>> segment size limit.
> Helge has found that tagging blk_bio_segment_split() with "__attribute__ ((optimize("O0")))"
> makes the issue disappear.  The bug remains if one just adds bv_len to the struct without the
> bit fields.  Maybe problem is evident from following output which I sent to Ming and Helge
> last weekend?
> 
> blk_rq_map_sg: merge bug: 3 2, extra_len 0, dma_drain 0
> check_bvec: dump bvec for 000000007e4efdc0(f:24490000, t:1)
>             0: 0 4096 246503 000000007e4a4f00(0, 94208, 1)
>             1: 0 4096 246504 000000007e4a4f00(0, 94208, 1)
>             2: 0 4096 246505 000000007e4a4f00(0, 94208, 1)
>             3: 0 4096 246506 000000007e4a4f00(0, 94208, 1)
>             4: 0 4096 246538 000000007e4a4f00(0, 94208, 2)
>             5: 0 4096 246539 000000007e4a4f00(0, 94208, 2)
>             6: 0 4096 246540 000000007e4a4f00(0, 94208, 2)
>             7: 0 4096 246541 000000007e4a4f00(0, 94208, 2)
>             8: 0 4096 246542 000000007e4a4f00(0, 94208, 2)
>             9: 0 4096 246543 000000007e4a4f00(0, 94208, 2)
>            10: 0 4096 246544 000000007e4a4f00(0, 94208, 2)
>            11: 0 4096 246545 000000007e4a4f00(0, 94208, 2)
>            12: 0 4096 246546 000000007e4a4f00(0, 94208, 2)
>            13: 0 4096 246547 000000007e4a4f00(0, 94208, 2)
>            14: 0 4096 246548 000000007e4a4f00(0, 94208, 2)
>            15: 0 4096 246549 000000007e4a4f00(0, 94208, 2)
>            16: 0 4096 246550 000000007e4a4f00(0, 94208, 2)
>            17: 0 4096 246551 000000007e4a4f00(0, 94208, 2)
>            18: 0 4096 246552 000000007e4a4f00(0, 94208, 2)
>            19: 0 4096 246553 000000007e4a4f00(0, 94208, 2)
>            20: 0 4096 246554 000000007e4a4f00(0, 94208, 2)
>            21: 0 4096 246555 000000007e4a4f00(0, 94208, 2)
>            22: 0 4096 246556 000000007e4a4f00(0, 94208, 2)
> Kernel panic - not syncing: bad block merge
> 
> It seems segment 1 is too small and segment 2 too big?
> 
> The general plan is to disable inlining (maybe move blk_bio_segment_split() to a separate
> function) to try to figure out what is miscompiled.

Right.
I just succeeded in reproducing the bug with moving blk_bio_segment_split() into an own file
(and with "extern" instead of "static" in blk-merge.c). When compiled with -O2 it still crashes.
So, next step is to analyze what gcc does wrong when compiling this function.
It should get easier now to find the reason, since we have a smaller reproducer now.

Helge
 
> As you say, this is probably a GCC bug.  However, it's likely a middle-end or optimization
> bug in the common GCC code.
> 
> Dave
> 

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On Wed, Mar 09, 2016 at 10:08:41PM +0200, Aaro Koskinen wrote:

> MIPS and PA-RISC want to sleep 5 seconds before panicking when
> panic_on_oops is set, with no apparent reason. We should remove
> this feature, since some users may want their systems to fail as
> quickly as possible.
> 
> Users who want to delay reboot after panic can use PANIC_TIMEOUT.
> 
> Also, this change will unify the behaviour with other architectures.

I did a bit of dumpster diving, commit cea6a4ba8acfba6f59cc9ed71e0d05cb770b9d9c
("[PATCH] panic_on_oops: remove ssleep()") removed the 5 second delay
from ARM, i386, ia64, powerpc, x86_64 and xtensa on 2006-03-07.

The idea once upon a time probably was to keep the panic message on the
console long enough so somebody has _maybe_ a chance to read it.  Which
is a pretty weak solution.

  Ralf
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: Re: [BUG] "block: make generic_make_request handle arbitrarily
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Date: Wed, 09 Mar 2016 19:16:57 -0500
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To: Helge Deller <deller@gmx.de>,
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On Wed, 2016-03-09 at 22:20 +0100, Helge Deller wrote:
> On 09.03.2016 16:15, John David Anglin wrote:
> > On 2016-03-09 9:43 AM, Ming Lei wrote:
> > > > We've provided all the information you asked for, what's the
> > > > next step
> > > > > on this, or do we have to unwind the bio splitting code with
> > > > > reverts
> > > > > until it starts working?
> > > John, Helge, and I did discuss the problem for a while privately,
> > > and looks
> > > it is related with compiler.  Last time, I sent one patch which
> > > can make the
> > > issue disappear, but the main change is just invovled with the
> > > below:
> > > 
> > >   struct bio_vec {
> > >       struct page    *bv_page;
> > > -    unsigned int    bv_len;
> > > +    unsigned int    bv_seg:8;
> > > +    unsigned int    bv_len:24;
> > >       unsigned int    bv_offset;
> > >   };
> > > 
> > > Maybe John and Helge have some update recently?
> > > 
> > > The logic in blk_bio_segment_split() is correct, and it does
> > > respect the max
> > > segment size limit.
> > Helge has found that tagging blk_bio_segment_split() with
> > "__attribute__ ((optimize("O0")))"
> > makes the issue disappear.  The bug remains if one just adds bv_len
> > to the struct without the
> > bit fields.  Maybe problem is evident from following output which I
> > sent to Ming and Helge
> > last weekend?
> > 
> > blk_rq_map_sg: merge bug: 3 2, extra_len 0, dma_drain 0
> > check_bvec: dump bvec for 000000007e4efdc0(f:24490000, t:1)
> >             0: 0 4096 246503 000000007e4a4f00(0, 94208, 1)
> >             1: 0 4096 246504 000000007e4a4f00(0, 94208, 1)
> >             2: 0 4096 246505 000000007e4a4f00(0, 94208, 1)
> >             3: 0 4096 246506 000000007e4a4f00(0, 94208, 1)
> >             4: 0 4096 246538 000000007e4a4f00(0, 94208, 2)
> >             5: 0 4096 246539 000000007e4a4f00(0, 94208, 2)
> >             6: 0 4096 246540 000000007e4a4f00(0, 94208, 2)
> >             7: 0 4096 246541 000000007e4a4f00(0, 94208, 2)
> >             8: 0 4096 246542 000000007e4a4f00(0, 94208, 2)
> >             9: 0 4096 246543 000000007e4a4f00(0, 94208, 2)
> >            10: 0 4096 246544 000000007e4a4f00(0, 94208, 2)
> >            11: 0 4096 246545 000000007e4a4f00(0, 94208, 2)
> >            12: 0 4096 246546 000000007e4a4f00(0, 94208, 2)
> >            13: 0 4096 246547 000000007e4a4f00(0, 94208, 2)
> >            14: 0 4096 246548 000000007e4a4f00(0, 94208, 2)
> >            15: 0 4096 246549 000000007e4a4f00(0, 94208, 2)
> >            16: 0 4096 246550 000000007e4a4f00(0, 94208, 2)
> >            17: 0 4096 246551 000000007e4a4f00(0, 94208, 2)
> >            18: 0 4096 246552 000000007e4a4f00(0, 94208, 2)
> >            19: 0 4096 246553 000000007e4a4f00(0, 94208, 2)
> >            20: 0 4096 246554 000000007e4a4f00(0, 94208, 2)
> >            21: 0 4096 246555 000000007e4a4f00(0, 94208, 2)
> >            22: 0 4096 246556 000000007e4a4f00(0, 94208, 2)
> > Kernel panic - not syncing: bad block merge
> > 
> > It seems segment 1 is too small and segment 2 too big?
> > 
> > The general plan is to disable inlining (maybe move
> > blk_bio_segment_split() to a separate
> > function) to try to figure out what is miscompiled.
> 
> Right.
> I just succeeded in reproducing the bug with moving
> blk_bio_segment_split() into an own file
> (and with "extern" instead of "static" in blk-merge.c). When compiled
> with -O2 it still crashes.
> So, next step is to analyze what gcc does wrong when compiling this
> function.
> It should get easier now to find the reason, since we have a smaller 
> reproducer now.

OK, that would explain why I don't see the problem, since I'm using an
older compiler.  So it's our issue and basically no action for block.

James


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From - Thu Nov 08 21:38:35 2018
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From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH 4/6] parisc: rtc: provide rtc_class_ops directly
Date: Thu, 10 Mar 2016 05:34:12 +0100
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Cc: linux-arm-kernel@lists.infradead.org,
	Kyle McMartin <kyle@mcmartin.ca>, rtc-linux@googlegroups.com,
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>, linux-kernel@vger.kernel.org
To: Arnd Bergmann <arnd@arndb.de>
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On 01/03/2016 at 18:00:00 +0100, Arnd Bergmann wrote :
> -	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
> +	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
> +					     &rtc_generic_ops,
> +					     sizeof(rtc_generic_ops));
> +
> +

spurious blank line

>  	return PTR_ERR_OR_ZERO(pdev);
>  }
>  device_initcall(rtc_init);
> -- 
> 2.7.0
> 

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

From - Thu Nov 08 21:38:35 2018
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Subject: Re: [PATCH 0/6] rtc: generic: follow up for COMPILE_TEST
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Hi,

On 01/03/2016 at 17:59:56 +0100, Arnd Bergmann wrote :
> Today's linux-next kernel allowed building the rtc-generic
> driver (and most other rtc drivers) on all architectures,
> but this caused some errors on architectures without asm/rtc.h.
> 
> This series reworks that driver to avoid the dependency,
> and simplifies all four implementations. My first approach
> was to split the driver into four separate drivers, but
> that didn't feel right when three of them have their own
> multiplexors.
> 
> The first five patches can be applied independent of one other,
> while patch 6 is optional and can be applied when all others
> are merged. Alternatively, they can all go in through the
> rtc tree. I compile-tested only the powerpc and sh targets for
> which I happened to have cross-compilers installed.
> 

I like this approach. Maybe you can also remove the now unnecessary
definitions from the various asm/rtc.h.

I have a small nitpick on the parisc patch.

I'll take the first patch, no need to resend that one.

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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Subject: Re: [BUG] "block: make generic_make_request handle arbitrarily sized bios" breaks boot on parisc-linux
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> Right.
> I just succeeded in reproducing the bug with moving blk_bio_segment_split()
> into an own file (and with "extern" instead of "static" in blk-merge.c).
> When compiled with -O2 it still crashes. So, next step is to analyze what
> gcc does wrong when compiling this function. It should get easier now to
> find the reason, since we have a smaller reproducer now.

I have a ton of compilers here on my C8000 and a few even on my C3600 which 
drive nightly CMake dashboards. Could you send the testcase so I can pass it 
through the list and see what breaks?

Greetings,

Eike
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Hi Mike,

On 14.03.2016 19:42, Mike Hosken wrote:
> Hi I have just acquired a HP RP8440 Server with the following specs-
>=20
> 9 x HP PA-8900 @ 1.067 dual core CPU,
> 24 x HP 4GB SuperDome Memory Modules,
> 4 x 146GB 15000rpm Wide Ultra320 SCSI HDDs,
> 48 X hp 0950-4741 Voltage Regulator Module (VRM),
> 3 x HP A9837-60303 HP PCA - Common PDH Daughter card (RoHS),
> 6 x HP AD193-8001 PCI-X 2-Port 4GB FC & 2-Port 1000BT adapter,
> 3x HP AB290-80001 PCI-X 2-Port U320 SCSI Adapter,
> 2x HP AB314-0002A Core I/O Board,
> 2x HP 0950-4637 Power Module 48VDC,
> DVD-RW,
> HP StorageWorks Dat72,
> 3x HP 0957-2183 PSUs

nice :-)

> My question is will Debian HPPA Linux support this hardware or should I=
 keep to the HP-UX.

Actually, I don't know.
Processors, Memory and probably SCSI should work with current kernels.
But I have no clue about the glue/logic chips in there.

In the wiki (https://parisc.wiki.kernel.org/index.php/Hardware_support) w=
e just have this sentence:
Support for Superdome will someday follow but requires some additional VM=
 work which is in progress.
But I don't know which kind of "VM work" is necessary...

Couldn't you just try at least once the boot image as described here:
https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation
and then send us the logs. I think this can give some insights.

Helge

> I=92m planning on using this server for web hosting, Email and MYSQL et=
c,  replacing my A400 and A180c
>=20
> Any advise would be appreciated =20
>=20
> Thanks
> Mike



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Hi,

all I know about the System ist that it has a cellboard based
architecture, and that there was never enough documentation released
that the according memory management could be programmed in Linux.

So probably this will not work.

May be on an physical partition level, there might be a chance, since
the single cellboard is pretty similar to the L-Class.

I personally would try to get the partition management on the RP
running and install one partition HP-UX and then try to work with
linux on an additional partition. Everything else would be rather
sporty.

Best regards.

On Tue, Mar 15, 2016 at 12:38 PM, Helge Deller <deller@gmx.de> wrote:
> Hi Mike,
>
> On 14.03.2016 19:42, Mike Hosken wrote:
>> Hi I have just acquired a HP RP8440 Server with the following specs-
>>
>> 9 x HP PA-8900 @ 1.067 dual core CPU,
>> 24 x HP 4GB SuperDome Memory Modules,
>> 4 x 146GB 15000rpm Wide Ultra320 SCSI HDDs,
>> 48 X hp 0950-4741 Voltage Regulator Module (VRM),
>> 3 x HP A9837-60303 HP PCA - Common PDH Daughter card (RoHS),
>> 6 x HP AD193-8001 PCI-X 2-Port 4GB FC & 2-Port 1000BT adapter,
>> 3x HP AB290-80001 PCI-X 2-Port U320 SCSI Adapter,
>> 2x HP AB314-0002A Core I/O Board,
>> 2x HP 0950-4637 Power Module 48VDC,
>> DVD-RW,
>> HP StorageWorks Dat72,
>> 3x HP 0957-2183 PSUs
>
> nice :-)
>
>> My question is will Debian HPPA Linux support this hardware or shoul=
d I keep to the HP-UX.
>
> Actually, I don't know.
> Processors, Memory and probably SCSI should work with current kernels=
=2E
> But I have no clue about the glue/logic chips in there.
>
> In the wiki (https://parisc.wiki.kernel.org/index.php/Hardware_suppor=
t) we just have this sentence:
> Support for Superdome will someday follow but requires some additiona=
l VM work which is in progress.
> But I don't know which kind of "VM work" is necessary...
>
> Couldn't you just try at least once the boot image as described here:
> https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation
> and then send us the logs. I think this can give some insights.
>
> Helge
>
>> I=E2=80=99m planning on using this server for web hosting, Email and=
 MYSQL etc,  replacing my A400 and A180c
>>
>> Any advise would be appreciated
>>
>> Thanks
>> Mike
>



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In theory, there is no difference between theory and practice.  In
practice, there is.

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Commit c74ba8b (arch: Introduce post-init read-only memory) introduced
the __ro_after_init tag to mark variables read-only after bootup.

This patch converts some variables over to the new secure method.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
index df0f52b..3d0e17b 100644
--- a/arch/parisc/include/asm/cache.h
+++ b/arch/parisc/include/asm/cache.h
@@ -22,9 +22,6 @@
 
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
 
-/* Read-only memory is marked before mark_rodata_ro() is called. */
-#define __ro_after_init	__read_mostly
-
 void parisc_cache_init(void);	/* initializes cache-flushing */
 void disable_sr_hashing_asm(int); /* low level support for above */
 void disable_sr_hashing(void);   /* turns off space register hashing */
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 91c2a39..4654a77 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -28,9 +28,9 @@
 #include <asm/sections.h>
 #include <asm/shmparam.h>
 
-int split_tlb __read_mostly;
-int dcache_stride __read_mostly;
-int icache_stride __read_mostly;
+int split_tlb __ro_after_init;
+int dcache_stride __ro_after_init;
+int icache_stride __ro_after_init;
 EXPORT_SYMBOL(dcache_stride);
 
 void flush_dcache_page_asm(unsigned long phys_addr, unsigned long vaddr);
@@ -45,9 +45,9 @@ void flush_icache_page_asm(unsigned long phys_addr, unsigned long vaddr);
  */
 DEFINE_SPINLOCK(pa_tlb_lock);
 
-struct pdc_cache_info cache_info __read_mostly;
+struct pdc_cache_info cache_info __ro_after_init;
 #ifndef CONFIG_PA20
-static struct pdc_btlb_info btlb_info __read_mostly;
+static struct pdc_btlb_info btlb_info __ro_after_init;
 #endif
 
 #ifdef CONFIG_SMP
@@ -360,10 +360,10 @@ EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
-static unsigned long parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
+static unsigned long parisc_cache_flush_threshold __ro_after_init = FLUSH_THRESHOLD;
 
 #define FLUSH_TLB_THRESHOLD (2*1024*1024) /* 2MB initial TLB threshold */
-static unsigned long parisc_tlb_flush_threshold __read_mostly = FLUSH_TLB_THRESHOLD;
+static unsigned long parisc_tlb_flush_threshold __ro_after_init = FLUSH_TLB_THRESHOLD;
 
 void __init parisc_setup_cache_timing(void)
 {
diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index f815066..462e19d 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -40,7 +40,7 @@
 #include <asm/parisc-device.h>
 
 /* See comments in include/asm-parisc/pci.h */
-struct dma_map_ops *hppa_dma_ops __read_mostly;
+struct dma_map_ops *hppa_dma_ops __ro_after_init;
 EXPORT_SYMBOL(hppa_dma_ops);
 
 static struct device root = {
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 2239590..34222dd 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -79,7 +79,7 @@ extern unsigned long pdc_result2[NUM_PDC_RESULT];
 
 /* Firmware needs to be initially set to narrow to determine the 
  * actual firmware width. */
-int parisc_narrow_firmware __read_mostly = 1;
+int parisc_narrow_firmware __ro_after_init = 1;
 #endif
 
 /* On most currently-supported platforms, IODC I/O calls are 32-bit calls
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index 75aa0db..c4f323e 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -348,7 +348,7 @@ smp_slave_stext:
 ENDPROC(parisc_kernel_start)
 
 #ifndef CONFIG_64BIT
-	.section .data..read_mostly
+	.section .data..ro_after_init
 
 	.align	4
 	.export	$global$,data
diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index f0b6722..e618641 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -38,7 +38,7 @@
 */
 #undef DEBUG_PAT
 
-int pdc_type __read_mostly = PDC_TYPE_ILLEGAL;
+int pdc_type __ro_after_init = PDC_TYPE_ILLEGAL;
 
 void __init setup_pdc(void)
 {
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index a27e492..25edf2e 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -36,9 +36,9 @@
 #include <asm/uaccess.h>
 #include <asm/tlbflush.h>	/* for purge_tlb_*() macros */
 
-static struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
-static unsigned long pcxl_used_bytes __read_mostly = 0;
-static unsigned long pcxl_used_pages __read_mostly = 0;
+static struct proc_dir_entry * proc_gsc_root __ro_after_init;
+static unsigned long pcxl_used_bytes;
+static unsigned long pcxl_used_pages;
 
 extern unsigned long pcxl_dma_start; /* Start of pcxl dma mapping area */
 static spinlock_t   pcxl_res_lock;
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 0903c6a..dcc2da3 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -45,14 +45,14 @@
  * #define pci_post_reset_delay 50
  */
 
-struct pci_port_ops *pci_port __read_mostly;
-struct pci_bios_ops *pci_bios __read_mostly;
+struct pci_port_ops *pci_port __ro_after_init;
+struct pci_bios_ops *pci_bios __ro_after_init;
 
-static int pci_hba_count __read_mostly;
+static int pci_hba_count __ro_after_init;
 
 /* parisc_pci_hba used by pci_port->in/out() ops to lookup bus data.  */
 #define PCI_HBA_MAX 32
-static struct pci_hba_data *parisc_pci_hba[PCI_HBA_MAX] __read_mostly;
+static struct pci_hba_data *parisc_pci_hba[PCI_HBA_MAX] __ro_after_init;
 
 
 /********************************************************************
diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c
index 3e04242..513e6e9 100644
--- a/arch/parisc/kernel/pdc_chassis.c
+++ b/arch/parisc/kernel/pdc_chassis.c
@@ -46,7 +46,7 @@
 #define PDC_CHASSIS_VER	"0.05"
 
 #ifdef CONFIG_PDC_CHASSIS
-static unsigned int pdc_chassis_enabled __read_mostly = 1;
+static unsigned int pdc_chassis_enabled __ro_after_init = 1;
 
 
 /**
diff --git a/arch/parisc/kernel/perf_images.h b/arch/parisc/kernel/perf_images.h
index 7fef964..c108fee 100644
--- a/arch/parisc/kernel/perf_images.h
+++ b/arch/parisc/kernel/perf_images.h
@@ -25,7 +25,7 @@
 
 #define PCXU_IMAGE_SIZE 584
 
-static uint32_t onyx_images[][PCXU_IMAGE_SIZE/sizeof(uint32_t)] __read_mostly = {
+static uint32_t onyx_images[][PCXU_IMAGE_SIZE/sizeof(uint32_t)] __ro_after_init = {
 /*
  * CPI:
  *
@@ -2093,7 +2093,7 @@ static uint32_t onyx_images[][PCXU_IMAGE_SIZE/sizeof(uint32_t)] __read_mostly =
 };
 #define PCXW_IMAGE_SIZE 576
 
-static uint32_t cuda_images[][PCXW_IMAGE_SIZE/sizeof(uint32_t)] __read_mostly = {
+static uint32_t cuda_images[][PCXW_IMAGE_SIZE/sizeof(uint32_t)] __ro_after_init = {
 /*
  * CPI:     FROM CPI.IDF (Image 0)
  *
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index e81ccf1..b475d95 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -42,10 +42,10 @@
 #include <asm/irq.h>		/* for struct irq_region */
 #include <asm/parisc-device.h>
 
-struct system_cpuinfo_parisc boot_cpu_data __read_mostly;
+struct system_cpuinfo_parisc boot_cpu_data __ro_after_init;
 EXPORT_SYMBOL(boot_cpu_data);
 #ifdef CONFIG_PA8X00
-int _parisc_requires_coherency __read_mostly;
+int _parisc_requires_coherency __ro_after_init;
 EXPORT_SYMBOL(_parisc_requires_coherency);
 #endif
 
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index f7ea626..9e14d80 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -49,12 +49,12 @@
 static char __initdata command_line[COMMAND_LINE_SIZE];
 
 /* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */
-struct proc_dir_entry * proc_runway_root __read_mostly = NULL;
-struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
-struct proc_dir_entry * proc_mckinley_root __read_mostly = NULL;
+struct proc_dir_entry * proc_runway_root __ro_after_init;
+struct proc_dir_entry * proc_gsc_root __ro_after_init;
+struct proc_dir_entry * proc_mckinley_root __ro_after_init;
 
 #if !defined(CONFIG_PA20) && (defined(CONFIG_IOMMU_CCIO) || defined(CONFIG_IOMMU_SBA))
-int parisc_bus_is_phys __read_mostly = 1;	/* Assume no IOMMU is present */
+int parisc_bus_is_phys __ro_after_init = 1;	/* Assume no IOMMU is present */
 EXPORT_SYMBOL(parisc_bus_is_phys);
 #endif
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 400acac0..623382f 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -36,7 +36,7 @@
 
 #include <linux/timex.h>
 
-static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
+static unsigned long clocktick __ro_after_init;	/* timer cycles per tick */
 
 /*
  * We keep time on PA-RISC Linux by using the Interval Timer which is
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 553b098..2cc3148 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -340,7 +340,7 @@ static void default_trap(int code, struct pt_regs *regs)
 	show_regs(regs);
 }
 
-void (*cpu_lpmc) (int code, struct pt_regs *regs) __read_mostly = default_trap;
+void (*cpu_lpmc) (int code, struct pt_regs *regs) __ro_after_init = default_trap;
 
 
 void transfer_pim_to_trap_frame(struct pt_regs *regs)
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index ddd988b..c7b160b 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -40,7 +40,7 @@ static spinlock_t unwind_lock;
  * we can call unwind_init as early in the bootup process as 
  * possible (before the slab allocator is initialized)
  */
-static struct unwind_table kernel_unwind_table __read_mostly;
+static struct unwind_table kernel_unwind_table __ro_after_init;
 static LIST_HEAD(unwind_tables);
 
 static inline const struct unwind_table_entry *
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 3c07d6b..c357414 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -49,8 +49,8 @@ pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((__section__ (".data..vm0.pgd"
 pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((__section__ (".data..vm0.pte"), aligned(PAGE_SIZE)));
 
 #ifdef CONFIG_DISCONTIGMEM
-struct node_map_data node_data[MAX_NUMNODES] __read_mostly;
-signed char pfnnid_map[PFNNID_MAP_MAX] __read_mostly;
+struct node_map_data node_data[MAX_NUMNODES] __ro_after_init;
+signed char pfnnid_map[PFNNID_MAP_MAX] __ro_after_init;
 #endif
 
 static struct resource data_resource = {
@@ -70,14 +70,14 @@ static struct resource pdcdata_resource = {
 	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM,
 };
 
-static struct resource sysram_resources[MAX_PHYSMEM_RANGES] __read_mostly;
+static struct resource sysram_resources[MAX_PHYSMEM_RANGES] __ro_after_init;
 
 /* The following array is initialized from the firmware specific
  * information retrieved in kernel/inventory.c.
  */
 
-physmem_range_t pmem_ranges[MAX_PHYSMEM_RANGES] __read_mostly;
-int npmem_ranges __read_mostly;
+physmem_range_t pmem_ranges[MAX_PHYSMEM_RANGES] __ro_after_init;
+int npmem_ranges __ro_after_init;
 
 #ifdef CONFIG_64BIT
 #define MAX_MEM         (~0UL)
@@ -85,7 +85,7 @@ int npmem_ranges __read_mostly;
 #define MAX_MEM         (3584U*1024U*1024U)
 #endif /* !CONFIG_64BIT */
 
-static unsigned long mem_limit __read_mostly = MAX_MEM;
+static unsigned long mem_limit __ro_after_init = MAX_MEM;
 
 static void __init mem_limit_func(void)
 {
@@ -577,11 +577,11 @@ void mark_rodata_ro(void)
 #define SET_MAP_OFFSET(x) ((void *)(((unsigned long)(x) + VM_MAP_OFFSET) \
 				     & ~(VM_MAP_OFFSET-1)))
 
-void *parisc_vmalloc_start __read_mostly;
+void *parisc_vmalloc_start __ro_after_init;
 EXPORT_SYMBOL(parisc_vmalloc_start);
 
 #ifdef CONFIG_PA11
-unsigned long pcxl_dma_start __read_mostly;
+unsigned long pcxl_dma_start __ro_after_init;
 #endif
 
 void __init mem_init(void)
@@ -650,7 +650,7 @@ void __init mem_init(void)
 #endif
 }
 
-unsigned long *empty_zero_page __read_mostly;
+unsigned long *empty_zero_page __ro_after_init;
 EXPORT_SYMBOL(empty_zero_page);
 
 void show_mem(unsigned int filter)
diff --git a/drivers/parisc/lasi.c b/drivers/parisc/lasi.c
index e65727c..212f740 100644
--- a/drivers/parisc/lasi.c
+++ b/drivers/parisc/lasi.c
@@ -150,7 +150,7 @@ static void __init lasi_led_init(unsigned long lasi_hpa)
  * 
  */
 
-static unsigned long lasi_power_off_hpa __read_mostly;
+static unsigned long lasi_power_off_hpa __ro_after_init;
 
 static void lasi_power_off(void)
 {
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 2ec2aef..684c7c0 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -100,7 +100,7 @@
 
 /* non-postable I/O port space, densely packed */
 #define LBA_PORT_BASE	(PCI_F_EXTEND | 0xfee00000UL)
-static void __iomem *astro_iop_base __read_mostly;
+static void __iomem *astro_iop_base __ro_after_init;
 
 static u32 lba_t32;
 
diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index b482431..d589d1c 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -57,14 +57,14 @@
    relatively large amount of CPU time, some of the calculations can be 
    turned off with the following variables (controlled via procfs) */
 
-static int led_type __read_mostly = -1;
+static int led_type __ro_after_init = -1;
 static unsigned char lastleds;	/* LED state from most recent update */
 static unsigned int led_heartbeat __read_mostly = 1;
 static unsigned int led_diskio    __read_mostly = 1;
 static unsigned int led_lanrxtx   __read_mostly = 1;
 static char lcd_text[32]          __read_mostly;
 static char lcd_text_default[32]  __read_mostly;
-static int  lcd_no_led_support    __read_mostly = 0; /* KittyHawk doesn't support LED on its LCD */
+static int  lcd_no_led_support    __ro_after_init; /* KittyHawk doesn't support LED on its LCD */
 
 
 static struct workqueue_struct *led_wq;
@@ -149,7 +149,7 @@ static int start_task(void)
 device_initcall(start_task);
 
 /* ptr to LCD/LED-specific function */
-static void (*led_func_ptr) (unsigned char) __read_mostly;
+static void (*led_func_ptr) (unsigned char) __ro_after_init;
 
 #ifdef CONFIG_PROC_FS
 static int led_proc_show(struct seq_file *m, void *v)
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 3651c38..84d81e3 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -90,10 +90,10 @@ MODULE_LICENSE("GPL");
 MODULE_VERSION(PDCS_VERSION);
 
 /* holds Stable Storage size. Initialized once and for all, no lock needed */
-static unsigned long pdcs_size __read_mostly;
+static unsigned long pdcs_size __ro_after_init;
 
 /* holds OS ID. Initialized once and for all, hopefully to 0x0006 */
-static u16 pdcs_osid __read_mostly;
+static u16 pdcs_osid __ro_after_init;
 
 /* This struct defines what we need to deal with a parisc pdc path entry */
 struct pdcspath_entry {
--
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Please confirm receipt of my previous mail..When can i call you 
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From - Thu Nov 08 21:38:36 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.ports.ia64,gmane.linux.kernel
Subject: [PATCH] parisc,metag: Implement CONFIG_DEBUG_STACK_USAGE option
Date: Sat, 19 Mar 2016 17:54:10 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26534>

On parisc and metag the stack grows upwards, so for those we need to
scan the stack downwards in order to calculate how much stack a process
has used.

Tested on a 64bit parisc kernel.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 084ed9f..71591f3 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2859,10 +2859,18 @@ static inline unsigned long stack_not_used(struct task_struct *p)
 	unsigned long *n = end_of_stack(p);
 
 	do { 	/* Skip over canary */
+# ifdef CONFIG_STACK_GROWSUP
+		n--;
+# else
 		n++;
+# endif
 	} while (!*n);
 
+# ifdef CONFIG_STACK_GROWSUP
+	return (unsigned long)end_of_stack(p) - (unsigned long)n;
+# else
 	return (unsigned long)n - (unsigned long)end_of_stack(p);
+# endif
 }
 #endif
 extern void set_task_stack_end_magic(struct task_struct *tsk);
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index f28f7fa..901f96c 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -546,7 +546,7 @@ config DEBUG_KMEMLEAK_DEFAULT_OFF
 
 config DEBUG_STACK_USAGE
 	bool "Stack utilization instrumentation"
-	depends on DEBUG_KERNEL && !IA64 && !PARISC && !METAG
+	depends on DEBUG_KERNEL && !IA64
 	help
 	  Enables the display of the minimum amount of free stack which each
 	  task has ever had available in the sysrq-T and sysrq-P debug output.
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From - Thu Nov 08 21:38:36 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Drop alloc_hugepages and free_hugepages syscalls
Date: Sun, 20 Mar 2016 12:20:31 +0100
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Those syscalls were never implemented and don't exists in other arches
either.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index b75039f..fdb3c4e 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -235,8 +235,8 @@
 #define __NR_io_getevents       (__NR_Linux + 217)
 #define __NR_io_submit          (__NR_Linux + 218)
 #define __NR_io_cancel          (__NR_Linux + 219)
-#define __NR_alloc_hugepages    (__NR_Linux + 220)
-#define __NR_free_hugepages     (__NR_Linux + 221)
+#define __NR_alloc_hugepages    (__NR_Linux + 220) /* not used */
+#define __NR_free_hugepages     (__NR_Linux + 221) /* not used */
 #define __NR_exit_group         (__NR_Linux + 222)
 #define __NR_lookup_dcookie     (__NR_Linux + 223)
 #define __NR_epoll_create       (__NR_Linux + 224)
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 5aba01a..0a393a0 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -368,16 +368,6 @@ asmlinkage long parisc_fallocate(int fd, int mode, u32 offhi, u32 offlo,
                              ((u64)lenhi << 32) | lenlo);
 }
 
-asmlinkage unsigned long sys_alloc_hugepages(int key, unsigned long addr, unsigned long len, int prot, int flag)
-{
-	return -ENOMEM;
-}
-
-asmlinkage int sys_free_hugepages(unsigned long addr)
-{
-	return -EINVAL;
-}

From - Thu Nov 08 21:38:36 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: Re: [BUG] "block: make generic_make_request handle arbitrarily sized
 bios" breaks boot on parisc-linux
Date: Sun, 20 Mar 2016 19:12:44 +0100
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References: <227C05EC-5A1C-4FAF-89D8-4A45AF600EC4@bell.net>
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Cc: John David Anglin <dave.anglin@bell.net>,
	Ming Lei <tom.leiming@gmail.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	linux-block@vger.kernel.org,
	Linux SCSI List <linux-scsi@vger.kernel.org>,
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To: Rolf Eike Beer <eike@sf-mail.de>
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Hi Eike,

On 10.03.2016 08:04, Rolf Eike Beer wrote:
>> Right.
>> I just succeeded in reproducing the bug with moving blk_bio_segment_split()
>> into an own file (and with "extern" instead of "static" in blk-merge.c).
>> When compiled with -O2 it still crashes. So, next step is to analyze what
>> gcc does wrong when compiling this function. It should get easier now to
>> find the reason, since we have a smaller reproducer now.
> 
> I have a ton of compilers here on my C8000 and a few even on my C3600 which 
> drive nightly CMake dashboards. Could you send the testcase so I can pass it 
> through the list and see what breaks?

Thanks for the offer!
Sadly it's not a stand-alone testcase, just the original source code extracted
which can be manually compiled and then the generated assembly can be compared
to what it should be.
That said, I think this specific testcase is not really usable in your test environment.

By the way, the bug was just fixed. Details are in bugzilla:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70188

Thanks,
Helge
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From - Thu Nov 08 21:38:36 2018
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From: Andrew Morton <akpm@linux-foundation.org>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.mips.general
Subject: Re: [PATCH v2 14/16] input: Redefine INPUT_COMPAT_TEST as
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To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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On Wed, 27 Jan 2016 13:06:10 -0800 Dmitry Torokhov <dmitry.torokhov@gmail.com> wrote:

> On Wed, Jan 27, 2016 at 12:29:14PM -0800, Andy Lutomirski wrote:
> > On Wed, Jan 27, 2016 at 11:17 AM, Dmitry Torokhov
> > <dmitry.torokhov@gmail.com> wrote:
> > > Hi Andy,
> > >
> > > On Mon, Jan 25, 2016 at 2:24 PM, Andy Lutomirski <luto@kernel.org> wrote:
> > >> The input compat code should work like all other compat code: for
> > >> 32-bit syscalls, use the 32-bit ABI and for 64-bit syscalls, use the
> > >> 64-bit ABI.  We have a helper for that (in_compat_syscall()): just
> > >> use it.
> > >>
> > >> Signed-off-by: Andy Lutomirski <luto@kernel.org>
> > >> ---
> > >>  drivers/input/input-compat.h | 12 +-----------
> > >>  1 file changed, 1 insertion(+), 11 deletions(-)
> > >>
> > >> diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h
> > >> index 148f66fe3205..0f25878d5fa2 100644
> > >> --- a/drivers/input/input-compat.h
> > >> +++ b/drivers/input/input-compat.h
> > >> @@ -17,17 +17,7 @@
> > >>
> > >>  #ifdef CONFIG_COMPAT
> > >>
> > >> -/* Note to the author of this code: did it ever occur to
> > >> -   you why the ifdefs are needed? Think about it again. -AK */
> > >> -#if defined(CONFIG_X86_64) || defined(CONFIG_TILE)
> > >> -#  define INPUT_COMPAT_TEST is_compat_task()
> > >> -#elif defined(CONFIG_S390)
> > >> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT)
> > >> -#elif defined(CONFIG_MIPS)
> > >> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT_ADDR)
> > >> -#else
> > >> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT)
> > >> -#endif
> > >> +#define INPUT_COMPAT_TEST in_compat_syscall()
> > >>
> > >
> > >
> > > If we now have function that works on all arches I'd prefer if we used
> > > it directly instead of continuing using INPUT_COMPAT_TEST.
> > 
> > I'll write a followup patch for that if you don't beat me to it.
> 
> I promise I wont ;)

Well someone needs beating!

I'm prepping this patch for Linus now.  I shall queue up the below for
later.

From: Andrew Morton <akpm@linux-foundation.org>
Subject: drivers/input: eliminate INPUT_COMPAT_TEST macro

INPUT_COMPAT_TEST became much simpler after "input: redefine
INPUT_COMPAT_TEST as in_compat_syscall()" so we can cleanly eliminate it
altogether.

Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/input/input-compat.c |    6 +++---
 drivers/input/input-compat.h |    4 +---
 drivers/input/input.c        |    2 +-
 drivers/input/misc/uinput.c  |    4 ++--
 4 files changed, 7 insertions(+), 9 deletions(-)

diff -puN drivers/input/input-compat.h~a drivers/input/input-compat.h
--- a/drivers/input/input-compat.h~a
+++ a/drivers/input/input-compat.h
@@ -17,8 +17,6 @@
 
 #ifdef CONFIG_COMPAT
 
-#define INPUT_COMPAT_TEST in_compat_syscall()
-
 struct input_event_compat {
 	struct compat_timeval time;
 	__u16 type;
@@ -57,7 +55,7 @@ struct ff_effect_compat {
 
 static inline size_t input_event_size(void)
 {
-	return (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) ?
+	return (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) ?
 		sizeof(struct input_event_compat) : sizeof(struct input_event);
 }
 
diff -puN drivers/input/misc/uinput.c~a drivers/input/misc/uinput.c
--- a/drivers/input/misc/uinput.c~a
+++ a/drivers/input/misc/uinput.c
@@ -664,7 +664,7 @@ struct uinput_ff_upload_compat {
 static int uinput_ff_upload_to_user(char __user *buffer,
 				    const struct uinput_ff_upload *ff_up)
 {
-	if (INPUT_COMPAT_TEST) {
+	if (in_compat_syscall()) {
 		struct uinput_ff_upload_compat ff_up_compat;
 
 		ff_up_compat.request_id = ff_up->request_id;
@@ -695,7 +695,7 @@ static int uinput_ff_upload_to_user(char
 static int uinput_ff_upload_from_user(const char __user *buffer,
 				      struct uinput_ff_upload *ff_up)
 {
-	if (INPUT_COMPAT_TEST) {
+	if (in_compat_syscall()) {
 		struct uinput_ff_upload_compat ff_up_compat;
 
 		if (copy_from_user(&ff_up_compat, buffer,
diff -puN drivers/input/input-compat.c~a drivers/input/input-compat.c
--- a/drivers/input/input-compat.c~a
+++ a/drivers/input/input-compat.c
@@ -17,7 +17,7 @@
 int input_event_from_user(const char __user *buffer,
 			  struct input_event *event)
 {
-	if (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) {
+	if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
 		struct input_event_compat compat_event;
 
 		if (copy_from_user(&compat_event, buffer,
@@ -41,7 +41,7 @@ int input_event_from_user(const char __u
 int input_event_to_user(char __user *buffer,
 			const struct input_event *event)
 {
-	if (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) {
+	if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
 		struct input_event_compat compat_event;
 
 		compat_event.time.tv_sec = event->time.tv_sec;
@@ -65,7 +65,7 @@ int input_event_to_user(char __user *buf
 int input_ff_effect_from_user(const char __user *buffer, size_t size,
 			      struct ff_effect *effect)
 {
-	if (INPUT_COMPAT_TEST) {
+	if (in_compat_syscall()) {
 		struct ff_effect_compat *compat_effect;
 
 		if (size != sizeof(struct ff_effect_compat))
diff -puN drivers/input/input.c~a drivers/input/input.c
--- a/drivers/input/input.c~a
+++ a/drivers/input/input.c
@@ -1015,7 +1015,7 @@ static int input_bits_to_string(char *bu
 {
 	int len = 0;
 
-	if (INPUT_COMPAT_TEST) {
+	if (in_compat_syscall()) {
 		u32 dword = bits >> 32;
 		if (dword || !skip_empty)
 			len += snprintf(buf, buf_size, "%x ", dword);
_

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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/31352>

On Tue, Mar 22, 2016 at 01:51:52PM -0700, Andrew Morton wrote:
> On Wed, 27 Jan 2016 13:06:10 -0800 Dmitry Torokhov <dmitry.torokhov@gmail.com> wrote:
> 
> > On Wed, Jan 27, 2016 at 12:29:14PM -0800, Andy Lutomirski wrote:
> > > On Wed, Jan 27, 2016 at 11:17 AM, Dmitry Torokhov
> > > <dmitry.torokhov@gmail.com> wrote:
> > > > Hi Andy,
> > > >
> > > > On Mon, Jan 25, 2016 at 2:24 PM, Andy Lutomirski <luto@kernel.org> wrote:
> > > >> The input compat code should work like all other compat code: for
> > > >> 32-bit syscalls, use the 32-bit ABI and for 64-bit syscalls, use the
> > > >> 64-bit ABI.  We have a helper for that (in_compat_syscall()): just
> > > >> use it.
> > > >>
> > > >> Signed-off-by: Andy Lutomirski <luto@kernel.org>
> > > >> ---
> > > >>  drivers/input/input-compat.h | 12 +-----------
> > > >>  1 file changed, 1 insertion(+), 11 deletions(-)
> > > >>
> > > >> diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h
> > > >> index 148f66fe3205..0f25878d5fa2 100644
> > > >> --- a/drivers/input/input-compat.h
> > > >> +++ b/drivers/input/input-compat.h
> > > >> @@ -17,17 +17,7 @@
> > > >>
> > > >>  #ifdef CONFIG_COMPAT
> > > >>
> > > >> -/* Note to the author of this code: did it ever occur to
> > > >> -   you why the ifdefs are needed? Think about it again. -AK */
> > > >> -#if defined(CONFIG_X86_64) || defined(CONFIG_TILE)
> > > >> -#  define INPUT_COMPAT_TEST is_compat_task()
> > > >> -#elif defined(CONFIG_S390)
> > > >> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT)
> > > >> -#elif defined(CONFIG_MIPS)
> > > >> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT_ADDR)
> > > >> -#else
> > > >> -#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT)
> > > >> -#endif
> > > >> +#define INPUT_COMPAT_TEST in_compat_syscall()
> > > >>
> > > >
> > > >
> > > > If we now have function that works on all arches I'd prefer if we used
> > > > it directly instead of continuing using INPUT_COMPAT_TEST.
> > > 
> > > I'll write a followup patch for that if you don't beat me to it.
> > 
> > I promise I wont ;)
> 
> Well someone needs beating!
> 
> I'm prepping this patch for Linus now.  I shall queue up the below for
> later.

Thank you Andrew.

> 
> From: Andrew Morton <akpm@linux-foundation.org>
> Subject: drivers/input: eliminate INPUT_COMPAT_TEST macro
> 
> INPUT_COMPAT_TEST became much simpler after "input: redefine
> INPUT_COMPAT_TEST as in_compat_syscall()" so we can cleanly eliminate it
> altogether.
> 
> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> Cc: Andy Lutomirski <luto@amacapital.net>
> Cc: Andy Lutomirski <luto@kernel.org>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

> ---
> 
>  drivers/input/input-compat.c |    6 +++---
>  drivers/input/input-compat.h |    4 +---
>  drivers/input/input.c        |    2 +-
>  drivers/input/misc/uinput.c  |    4 ++--
>  4 files changed, 7 insertions(+), 9 deletions(-)
> 
> diff -puN drivers/input/input-compat.h~a drivers/input/input-compat.h
> --- a/drivers/input/input-compat.h~a
> +++ a/drivers/input/input-compat.h
> @@ -17,8 +17,6 @@
>  
>  #ifdef CONFIG_COMPAT
>  
> -#define INPUT_COMPAT_TEST in_compat_syscall()
> -
>  struct input_event_compat {
>  	struct compat_timeval time;
>  	__u16 type;
> @@ -57,7 +55,7 @@ struct ff_effect_compat {
>  
>  static inline size_t input_event_size(void)
>  {
> -	return (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) ?
> +	return (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) ?
>  		sizeof(struct input_event_compat) : sizeof(struct input_event);
>  }
>  
> diff -puN drivers/input/misc/uinput.c~a drivers/input/misc/uinput.c
> --- a/drivers/input/misc/uinput.c~a
> +++ a/drivers/input/misc/uinput.c
> @@ -664,7 +664,7 @@ struct uinput_ff_upload_compat {
>  static int uinput_ff_upload_to_user(char __user *buffer,
>  				    const struct uinput_ff_upload *ff_up)
>  {
> -	if (INPUT_COMPAT_TEST) {
> +	if (in_compat_syscall()) {
>  		struct uinput_ff_upload_compat ff_up_compat;
>  
>  		ff_up_compat.request_id = ff_up->request_id;
> @@ -695,7 +695,7 @@ static int uinput_ff_upload_to_user(char
>  static int uinput_ff_upload_from_user(const char __user *buffer,
>  				      struct uinput_ff_upload *ff_up)
>  {
> -	if (INPUT_COMPAT_TEST) {
> +	if (in_compat_syscall()) {
>  		struct uinput_ff_upload_compat ff_up_compat;
>  
>  		if (copy_from_user(&ff_up_compat, buffer,
> diff -puN drivers/input/input-compat.c~a drivers/input/input-compat.c
> --- a/drivers/input/input-compat.c~a
> +++ a/drivers/input/input-compat.c
> @@ -17,7 +17,7 @@
>  int input_event_from_user(const char __user *buffer,
>  			  struct input_event *event)
>  {
> -	if (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) {
> +	if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
>  		struct input_event_compat compat_event;
>  
>  		if (copy_from_user(&compat_event, buffer,
> @@ -41,7 +41,7 @@ int input_event_from_user(const char __u
>  int input_event_to_user(char __user *buffer,
>  			const struct input_event *event)
>  {
> -	if (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) {
> +	if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
>  		struct input_event_compat compat_event;
>  
>  		compat_event.time.tv_sec = event->time.tv_sec;
> @@ -65,7 +65,7 @@ int input_event_to_user(char __user *buf
>  int input_ff_effect_from_user(const char __user *buffer, size_t size,
>  			      struct ff_effect *effect)
>  {
> -	if (INPUT_COMPAT_TEST) {
> +	if (in_compat_syscall()) {
>  		struct ff_effect_compat *compat_effect;
>  
>  		if (size != sizeof(struct ff_effect_compat))
> diff -puN drivers/input/input.c~a drivers/input/input.c
> --- a/drivers/input/input.c~a
> +++ a/drivers/input/input.c
> @@ -1015,7 +1015,7 @@ static int input_bits_to_string(char *bu
>  {
>  	int len = 0;
>  
> -	if (INPUT_COMPAT_TEST) {
> +	if (in_compat_syscall()) {
>  		u32 dword = bits >> 32;
>  		if (dword || !skip_empty)
>  			len += snprintf(buf, buf_size, "%x ", dword);
> _
> 

-- 
Dmitry

From - Thu Nov 08 21:38:36 2018
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From: Jiri Slaby <jslaby@suse.cz>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user
Subject: [PATCH 3/4] exit_thread: accept a task parameter to be exited
Date: Thu, 24 Mar 2016 13:58:13 +0100
Lines: 717
Approved: news@gmane.org
Message-ID: <1458824294-29733-1-git-send-email-jslaby@suse.cz>
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Cc: linux-kernel@vger.kernel.org, Jiri Slaby <jslaby@suse.cz>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Russell King <linux@arm.linux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Haavard Skinnemoen <hskinnemoen@gmail.com>,
        Hans-Christian Egtvedt <egtvedt@samfundet.no>,
        Steven Miao <realmz6@gmail.com>,
        Mark Salter <msalter@redhat.com>,
        Aurelien Jacquiot <a-jacquiot@ti.com>,
        Mikael Starvik <starvik@axis.com>,
        Jesper Nilsson <jesper.nilsson@axis.com>,
        Yoshinori Sato <ysato@users.sourceforge.jp>,
        Richard Kuo <rkuo@codeaurora.org>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
To: akpm@linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/53853>

We need to call exit_thread from copy_process in a fail path.  So make
it accept task_struct as a parameter.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Chen Liqin <liqin.linux@gmail.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-cris-kernel@axis.com
Cc: uclinux-h8-devel@lists.sourceforge.jp
Cc: linux-hexagon@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-metag@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-am33-list@redhat.com
Cc: nios2-dev@lists.rocketboards.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: user-mode-linux-user@lists.sourceforge.net
Cc: linux-xtensa@linux-xtensa.org
---
 arch/alpha/kernel/process.c             |  2 +-
 arch/arc/kernel/process.c               |  2 +-
 arch/arm/kernel/process.c               |  4 ++--
 arch/arm64/kernel/process.c             |  2 +-
 arch/avr32/kernel/process.c             |  4 ++--
 arch/blackfin/include/asm/processor.h   |  2 +-
 arch/c6x/kernel/process.c               |  2 +-
 arch/cris/arch-v10/kernel/process.c     |  2 +-
 arch/cris/arch-v32/kernel/process.c     |  4 ++--
 arch/frv/include/asm/processor.h        |  2 +-
 arch/h8300/include/asm/processor.h      |  2 +-
 arch/hexagon/kernel/process.c           |  2 +-
 arch/ia64/kernel/perfmon.c              |  4 ++--
 arch/ia64/kernel/process.c              | 14 +++++++-------
 arch/m32r/kernel/process.c              |  4 ++--
 arch/m68k/include/asm/processor.h       |  2 +-
 arch/metag/include/asm/processor.h      |  2 +-
 arch/metag/kernel/process.c             |  6 +++---
 arch/microblaze/include/asm/processor.h |  4 ++--
 arch/mips/kernel/process.c              |  2 +-
 arch/mn10300/kernel/process.c           |  4 ++--
 arch/nios2/include/asm/processor.h      |  2 +-
 arch/openrisc/include/asm/processor.h   |  2 +-
 arch/parisc/kernel/process.c            |  2 +-
 arch/powerpc/kernel/process.c           |  2 +-
 arch/s390/kernel/process.c              |  4 ++--
 arch/score/kernel/process.c             |  2 +-
 arch/sh/kernel/process_32.c             |  2 +-
 arch/sh/kernel/process_64.c             |  4 ++--
 arch/sparc/kernel/process_32.c          | 12 ++++++------
 arch/sparc/kernel/process_64.c          |  4 ++--
 arch/tile/kernel/process.c              |  4 ++--
 arch/um/kernel/process.c                |  2 +-
 arch/unicore32/kernel/process.c         |  2 +-
 arch/x86/kernel/process.c               |  3 +--
 arch/xtensa/kernel/process.c            |  4 ++--
 include/linux/sched.h                   |  2 +-
 kernel/exit.c                           |  2 +-
 38 files changed, 63 insertions(+), 64 deletions(-)

diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 84d13263ce46..1e044d1f7525 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -214,7 +214,7 @@ EXPORT_SYMBOL(start_thread);
  * Free current thread data structures etc..
  */
 void
-exit_thread(void)
+exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index a3f750e76b68..70944dfab6c6 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -186,7 +186,7 @@ void flush_thread(void)
 /*
  * Free any architecture-specific thread data structures, etc.
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 4adfb46e3ee9..e8ecd02bf7ea 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -193,9 +193,9 @@ EXPORT_SYMBOL_GPL(thread_notify_head);
 /*
  * Free current thread data structures etc..
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
-	thread_notify(THREAD_NOTIFY_EXIT, current_thread_info());
+	thread_notify(THREAD_NOTIFY_EXIT, task_thread_info(me));
 }
 
 void flush_thread(void)
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 80624829db61..84b288c85e4a 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -203,7 +203,7 @@ void show_regs(struct pt_regs * regs)
 /*
  * Free current thread data structures etc..
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 42a53e740a7e..ea21d0e99b6b 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -62,9 +62,9 @@ void machine_restart(char *cmd)
 /*
  * Free current thread data structures etc
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
-	ocd_disable(current);
+	ocd_disable(me);
 }
 
 void flush_thread(void)
diff --git a/arch/blackfin/include/asm/processor.h b/arch/blackfin/include/asm/processor.h
index 7acd46653df3..7aa6cd0ac8d9 100644
--- a/arch/blackfin/include/asm/processor.h
+++ b/arch/blackfin/include/asm/processor.h
@@ -78,7 +78,7 @@ static inline void release_thread(struct task_struct *dead_task)
 /*
  * Free current thread data structures etc..
  */
-static inline void exit_thread(void)
+static inline void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 3ae9f5a166a0..4b2dfb1d330d 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -82,7 +82,7 @@ void flush_thread(void)
 {
 }
 
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c
index 02b783457be0..2aaaccc3883c 100644
--- a/arch/cris/arch-v10/kernel/process.c
+++ b/arch/cris/arch-v10/kernel/process.c
@@ -39,7 +39,7 @@ void default_idle(void)
  * Free current thread data structures etc..
  */
 
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 	/* Nothing needs to be done.  */
 }
diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c
index c7ce784a393c..5f55d15366ea 100644
--- a/arch/cris/arch-v32/kernel/process.c
+++ b/arch/cris/arch-v32/kernel/process.c
@@ -33,9 +33,9 @@ void default_idle(void)
  */
 
 extern void deconfigure_bp(long pid);
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
-	deconfigure_bp(current->pid);
+	deconfigure_bp(me->pid);
 }
 
 /*
diff --git a/arch/frv/include/asm/processor.h b/arch/frv/include/asm/processor.h
index ae8d423e79d9..cff4440abcee 100644
--- a/arch/frv/include/asm/processor.h
+++ b/arch/frv/include/asm/processor.h
@@ -99,7 +99,7 @@ extern asmlinkage void *restore_user_regs(const struct user_context *target, ...
 /*
  * Free current thread data structures etc..
  */
-static inline void exit_thread(void)
+static inline void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/h8300/include/asm/processor.h b/arch/h8300/include/asm/processor.h
index 54e3fd83c336..d79f99c645ad 100644
--- a/arch/h8300/include/asm/processor.h
+++ b/arch/h8300/include/asm/processor.h
@@ -113,7 +113,7 @@ static inline void release_thread(struct task_struct *dead_task)
 /*
  * Free current thread data structures etc..
  */
-static inline void exit_thread(void)
+static inline void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c
index a9ebd471823a..228b77433fe8 100644
--- a/arch/hexagon/kernel/process.c
+++ b/arch/hexagon/kernel/process.c
@@ -139,7 +139,7 @@ void release_thread(struct task_struct *dead_task)
 /*
  * Free any architecture-specific thread data structures, etc.
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 9cd607b06964..2436ad5f92c1 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -4542,8 +4542,8 @@ pfm_context_unload(pfm_context_t *ctx, void *arg, int count, struct pt_regs *reg
 
 
 /*
- * called only from exit_thread(): task == current
- * we come here only if current has a context attached (loaded or masked)
+ * called only from exit_thread()
+ * we come here only if the task has a context attached (loaded or masked)
  */
 void
 pfm_exit_thread(struct task_struct *task)
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index b51514957620..445f09fb2820 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -570,22 +570,22 @@ flush_thread (void)
 }
 
 /*
- * Clean up state associated with current thread.  This is called when
+ * Clean up state associated with a thread.  This is called when
  * the thread calls exit().
  */
 void
-exit_thread (void)
+exit_thread (struct task_struct *me)
 {
 
-	ia64_drop_fpu(current);
+	ia64_drop_fpu(me);
 #ifdef CONFIG_PERFMON
        /* if needed, stop monitoring and flush state to perfmon context */
-	if (current->thread.pfm_context)
-		pfm_exit_thread(current);
+	if (me->thread.pfm_context)
+		pfm_exit_thread(me);
 
 	/* free debug register resources */
-	if (current->thread.flags & IA64_THREAD_DBG_VALID)
-		pfm_release_debug_registers(current);
+	if (me->thread.flags & IA64_THREAD_DBG_VALID)
+		pfm_release_debug_registers(me);
 #endif
 }
 
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index e69221d581d5..00a41866b05e 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -104,10 +104,10 @@ void show_regs(struct pt_regs * regs)
 /*
  * Free current thread data structures etc..
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 	/* Nothing to do. */
-	DPRINTK("pid = %d\n", current->pid);
+	DPRINTK("pid = %d\n", me->pid);
 }
 
 void flush_thread(void)
diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h
index 20dda1d4b860..57ef5d420307 100644
--- a/arch/m68k/include/asm/processor.h
+++ b/arch/m68k/include/asm/processor.h
@@ -156,7 +156,7 @@ static inline void release_thread(struct task_struct *dead_task)
 /*
  * Free current thread data structures etc..
  */
-static inline void exit_thread(void)
+static inline void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index 0838ca699764..daf7943168f0 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -134,7 +134,7 @@ static inline void release_thread(struct task_struct *dead_task)
 #define copy_segments(tsk, mm)		do { } while (0)
 #define release_segments(mm)		do { } while (0)
 
-extern void exit_thread(void);
+extern void exit_thread(struct task_struct *me);
 
 /*
  * Return saved PC of a blocked thread.
diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
index 7f546183a0f0..f5c507c3d804 100644
--- a/arch/metag/kernel/process.c
+++ b/arch/metag/kernel/process.c
@@ -345,10 +345,10 @@ void flush_thread(void)
 /*
  * Free current thread data structures etc.
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
-	clear_fpu(&current->thread);
-	clear_dsp(&current->thread);
+	clear_fpu(&me->thread);
+	clear_dsp(&me->thread);
 }
 
 /* TODO: figure out how to unwind the kernel stack here to figure out
diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h
index 497a988d79c2..41300e76aac0 100644
--- a/arch/microblaze/include/asm/processor.h
+++ b/arch/microblaze/include/asm/processor.h
@@ -71,7 +71,7 @@ static inline void release_thread(struct task_struct *dead_task)
 }
 
 /* Free all resources held by a thread. */
-static inline void exit_thread(void)
+static inline void exit_thread(struct task_struct *me)
 {
 }
 
@@ -128,7 +128,7 @@ static inline void release_thread(struct task_struct *dead_task)
 }
 
 /* Free current thread data structures etc.  */
-static inline void exit_thread(void)
+static inline void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 92880cee449e..26f90e9ea288 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -73,7 +73,7 @@ void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp)
 	regs->regs[29] = sp;
 }
 
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 74a96ccf7451..99d73b5c2d33 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -103,9 +103,9 @@ void show_regs(struct pt_regs *regs)
 /*
  * free current thread data structures etc..
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
-	exit_fpu(current);
+	exit_fpu(me);
 }
 
 void flush_thread(void)
diff --git a/arch/nios2/include/asm/processor.h b/arch/nios2/include/asm/processor.h
index c2ba45c159c7..a8443c158d65 100644
--- a/arch/nios2/include/asm/processor.h
+++ b/arch/nios2/include/asm/processor.h
@@ -76,7 +76,7 @@ static inline void release_thread(struct task_struct *dead_task)
 }
 
 /* Free current thread data structures etc.. */
-static inline void exit_thread(void)
+static inline void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/openrisc/include/asm/processor.h b/arch/openrisc/include/asm/processor.h
index 4d235e3d2534..26a8f3760a71 100644
--- a/arch/openrisc/include/asm/processor.h
+++ b/arch/openrisc/include/asm/processor.h
@@ -88,7 +88,7 @@ unsigned long get_wchan(struct task_struct *p);
  * Free current thread data structures etc..
  */
 
-extern inline void exit_thread(void)
+extern inline void exit_thread(struct task_struct *me)
 {
 	/* Nothing needs to be done.  */
 }
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 809905a811ed..5750fe642202 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -147,7 +147,7 @@ EXPORT_SYMBOL(pm_power_off);
 /*
  * Free current thread data structures etc..
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 612df305886b..bb6da7f3c27b 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1326,7 +1326,7 @@ void show_regs(struct pt_regs * regs)
 		show_instructions(regs);
 }
 
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 7fabc985a7dd..b86625490090 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -70,9 +70,9 @@ extern void kernel_thread_starter(void);
 /*
  * Free current thread data structures etc..
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
-	exit_thread_runtime_instr(current);
+	exit_thread_runtime_instr(me);
 }
 
 void flush_thread(void)
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index a1519ad3d49d..de22a45558d6 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -56,7 +56,7 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp)
 	regs->regs[0] = sp;
 }
 
-void exit_thread(void) {}
+void exit_thread(struct task_struct *me) {}
 
 /*
  * When a process does an "exec", machine state like FPU and debug
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 2885fc9d9dcd..4e360f2be5fd 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -79,7 +79,7 @@ EXPORT_SYMBOL(start_thread);
 /*
  * Free current thread data structures etc..
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index e2062e643341..8bb717f5bfc9 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -288,7 +288,7 @@ void show_regs(struct pt_regs *regs)
 /*
  * Free current thread data structures etc..
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 	/*
 	 * See arch/sparc/kernel/process.c for the precedent for doing
@@ -307,7 +307,7 @@ void exit_thread(void)
 	 * which it would get safely nulled.
 	 */
 #ifdef CONFIG_SH_FPU
-	if (last_task_used_math == current) {
+	if (last_task_used_math == me) {
 		last_task_used_math = NULL;
 	}
 #endif
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index c5113c7ce2fd..00ade5a2f5e8 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -184,21 +184,21 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 /*
  * Free current thread data structures etc..
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 #ifndef CONFIG_SMP
-	if(last_task_used_math == current) {
+	if (last_task_used_math == me) {
 #else
-	if (test_thread_flag(TIF_USEDFPU)) {
+	if (test_ti_thread_flag(task_thread_info(me), TIF_USEDFPU)) {
 #endif
 		/* Keep process from leaving FPU in a bogon state. */
 		put_psr(get_psr() | PSR_EF);
-		fpsave(&current->thread.float_regs[0], &current->thread.fsr,
-		       &current->thread.fpqueue[0], &current->thread.fpqdepth);
+		fpsave(&me->thread.float_regs[0], &me->thread.fsr,
+		       &me->thread.fpqueue[0], &me->thread.fpqdepth);
 #ifndef CONFIG_SMP
 		last_task_used_math = NULL;
 #else
-		clear_thread_flag(TIF_USEDFPU);
+		clear_ti_thread_flag(task_thread_info(me), TIF_USEDFPU);
 #endif
 	}
 }
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index 46a59643bb1c..5cb4077f5cb8 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -417,9 +417,9 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 }
 
 /* Free current thread data structures etc.. */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
-	struct thread_info *t = current_thread_info();
+	struct thread_info *t = task_thread_info(me);
 
 	if (t->utraps) {
 		if (t->utraps[0] < 2)
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index b5f30d376ce1..94080d327efc 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -541,7 +541,7 @@ void flush_thread(void)
 /*
  * Free current thread data structures etc..
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 #ifdef CONFIG_HARDWALL
 	/*
@@ -550,7 +550,7 @@ void exit_thread(void)
 	 * the last reference to a hardwall fd, it would already have
 	 * been released and deactivated at this point.)
 	 */
-	hardwall_deactivate_all(current);
+	hardwall_deactivate_all(me);
 #endif
 }
 
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 48af59aae129..06eb532965d1 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -103,7 +103,7 @@ void interrupt_end(void)
 		tracehook_notify_resume(regs);
 }
 
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index b008e9961465..7c23697bc2ed 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -204,7 +204,7 @@ void show_regs(struct pt_regs *regs)
 /*
  * Free current thread data structures etc..
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 }
 
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 2915d54e9dd5..55c97e4ef71b 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -97,9 +97,8 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
 /*
  * Free current thread data structures etc..
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
-	struct task_struct *me = current;
 	struct thread_struct *t = &me->thread;
 	unsigned long *bp = t->io_bitmap_ptr;
 	struct fpu *fpu = &t->fpu;
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 5bbfed81c97b..6f3b54eb346c 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -115,10 +115,10 @@ void arch_cpu_idle(void)
 /*
  * This is called when the thread calls exit().
  */
-void exit_thread(void)
+void exit_thread(struct task_struct *me)
 {
 #if XTENSA_HAVE_COPROCESSORS
-	coprocessor_release_all(current_thread_info());
+	coprocessor_release_all(task_thread_info(me));
 #endif
 }
 
diff --git a/include/linux/sched.h b/include/linux/sched.h
index af5cc4768026..db4daa3aa894 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2648,7 +2648,7 @@ static inline int copy_thread_tls(
 }
 #endif
 extern void flush_thread(void);
-extern void exit_thread(void);
+extern void exit_thread(struct task_struct *);
 
 extern void exit_files(struct task_struct *);
 extern void __cleanup_sighand(struct sighand_struct *);
diff --git a/kernel/exit.c b/kernel/exit.c
index fd90195667e1..75b34fe835b2 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -746,7 +746,7 @@ void do_exit(long code)
 		disassociate_ctty(1);
 	exit_task_namespaces(tsk);
 	exit_task_work(tsk);
-	exit_thread();
+	exit_thread(tsk);
 
 	/*
 	 * Flush inherited counters to the parent - before the parent
-- 
2.7.4




From - Thu Nov 08 21:38:36 2018
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Subject: Re: [PATCH 3/4] exit_thread: accept a task parameter to be exited
Date: Thu, 24 Mar 2016 14:03:03 +0100
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Approved: news@gmane.org
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        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
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To: Jiri Slaby <jslaby@suse.cz>
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On Thu, Mar 24, 2016 at 01:58:13PM +0100, Jiri Slaby wrote:
>  void
> -exit_thread(void)
> +exit_thread(struct task_struct *me)
>  {
>  }

task_struct arguments are called: tsk, task, p
'me' seems very wrong, as that could only mean 'current', and its
clearly not that.



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Subject: Re: [PATCH 3/4] exit_thread: accept a task parameter to be exited
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On 03/24/2016, 02:03 PM, Peter Zijlstra wrote:
> On Thu, Mar 24, 2016 at 01:58:13PM +0100, Jiri Slaby wrote:
>>  void
>> -exit_thread(void)
>> +exit_thread(struct task_struct *me)
>>  {
>>  }
> 
> task_struct arguments are called: tsk, task, p
> 'me' seems very wrong, as that could only mean 'current', and its
> clearly not that.

Ah, OK. I will wait for more feedback and will fix this.

thanks,
-- 
js
suse labs



From - Thu Nov 08 21:38:36 2018
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From: Russell King - ARM Linux <linux@arm.linux.org.uk>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user
Subject: Re: [PATCH 3/4] exit_thread: accept a task parameter to be exited
Date: Thu, 24 Mar 2016 15:36:58 +0000
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Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
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To: Jiri Slaby <jslaby@suse.cz>
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On Thu, Mar 24, 2016 at 01:58:13PM +0100, Jiri Slaby wrote:
> We need to call exit_thread from copy_process in a fail path.  So make
> it accept task_struct as a parameter.

Hmm, so what this means is that exit_thread() can now be called for
threads which are not running on the CPU.  So, I think the comment
in arch/arm/vfp/vfpmodule.c needs to be updated:

 *  THREAD_NOTIFY_EXIT
 *   - the thread (v) will be running on the local CPU, so
 *      v === current_thread_info()

along with this change, since that becomes false.

The code, however, looks like it'll cope just fine with that being
false, as will the other users of THREAD_NOTIFY_EXIT in ARM.

Thanks.

-- 
RMK's Patch system: http://www.arm.linux.org.uk/developer/patches/
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.



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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc updates for v4.6 rc1
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Hi Linus,

please pull the latest parisc architecture patches for rc1 from:

  http://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.6-1

This patchset adds stack usage debug info for parisc and metag (on both the
stack grows upwards), switches to the new generic realative extable search and
sort routines,  drops the long time ago removed syscalls alloc_hugepages and
free_hugepages and wires up the new preadv2 and pwritev2 syscalls.

Thanks,
Helge

----------------------------------------------------------------
Aaro Koskinen (1):
      parisc: Panic immediately when panic_on_oops

Helge Deller (4):
      parisc: Drop alloc_hugepages and free_hugepages syscalls
      parisc,metag: Implement CONFIG_DEBUG_STACK_USAGE option
      parisc: Use generic extable search and sort routines
      parisc: Wire up preadv2 and pwritev2 syscalls

 arch/parisc/Kconfig                   |  1 +
 arch/parisc/include/asm/assembly.h    |  2 +-
 arch/parisc/include/asm/uaccess.h     |  7 ++++---
 arch/parisc/include/uapi/asm/unistd.h |  8 +++++---
 arch/parisc/kernel/sys_parisc.c       | 10 ----------
 arch/parisc/kernel/syscall_table.S    |  6 ++++--
 arch/parisc/kernel/traps.c            |  5 +----
 arch/parisc/mm/fault.c                |  9 ++-------
 include/linux/sched.h                 |  8 ++++++++
 lib/Kconfig.debug                     |  2 +-
 scripts/sortextable.c                 |  1 +
 11 files changed, 28 insertions(+), 31 deletions(-)
--
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From - Thu Nov 08 21:38:36 2018
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.kernel.arc,gmane.linux.uml.devel,gmane.linux.ports.alpha,gmane.linux.uml.user,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [3/4] exit_thread: accept a task parameter to be exited
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Cc: linux-mips@linux-mips.org, linux-s390@vger.kernel.org, Rich Felker <dalias@libc.org>, Aurelien Jacquiot <a-jacquiot@ti.com>,  Peter Zijlstra <peterz@infradead.org>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>,  David Howells <dhowells@redhat.com>, Max Filippov <jcmvbkbc@gmail.com>, Paul Mackerras <paulus@samba.org>, "H. Peter Anvin" <hpa@zytor.com>,  sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org, Guan Xuetao <gxt@mprc.pku.edu.cn>, Jiri Slaby <jslaby@suse.cz>, Lennox Wu <lennox.wu@gmail.com>, Hans-Christian Egtvedt <egtvedt@samfundet.no>,  Jonas Bonn <jonas@southpole.se>, Chen Liqin <liqin.linux@gmail.com>,  Jesper Nilsson <jesper.nilsson@axis.com>, linux-am33-list@redhat.com,  Russell King <linux@arm.linux.org.uk>, linux-c6x-dev@linux-c6
 x.org, Yoshinori Sato <ysato@users.sourceforge.jp>, linux-sh@vger.kernel.org, Helge Deller <deller@gmx
To: Jiri Slaby <jslaby@suse.cz>, akpm@linux-foundation.org
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On Thu, 2016-24-03 at 12:58:13 UTC, Jiri Slaby wrote:
> We need to call exit_thread from copy_process in a fail path.  So make
> it accept task_struct as a parameter.

If I'm counting right 22 of those are empty functions, so would it be a good
clean up to make it optional first?

cheers



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Subject: [PATCH 02/31] Include generic parity.h in some architectures'
 bitops.h
Date: Sun, 27 Mar 2016 12:02:26 +0800
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From: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>

Use the generic version.

Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
---
 arch/arc/include/asm/bitops.h      | 1 +
 arch/arm/include/asm/bitops.h      | 1 +
 arch/arm64/include/asm/bitops.h    | 1 +
 arch/c6x/include/asm/bitops.h      | 1 +
 arch/cris/include/asm/bitops.h     | 1 +
 arch/frv/include/asm/bitops.h      | 1 +
 arch/h8300/include/asm/bitops.h    | 1 +
 arch/hexagon/include/asm/bitops.h  | 1 +
 arch/m32r/include/asm/bitops.h     | 1 +
 arch/m68k/include/asm/bitops.h     | 1 +
 arch/metag/include/asm/bitops.h    | 1 +
 arch/mn10300/include/asm/bitops.h  | 1 +
 arch/openrisc/include/asm/bitops.h | 1 +
 arch/parisc/include/asm/bitops.h   | 1 +
 arch/s390/include/asm/bitops.h     | 1 +
 arch/sh/include/asm/bitops.h       | 1 +
 arch/xtensa/include/asm/bitops.h   | 1 +
 17 files changed, 17 insertions(+)

diff --git a/arch/arc/include/asm/bitops.h b/arch/arc/include/asm/bitops.h
index 0352fb8..7967e47 100644
--- a/arch/arc/include/asm/bitops.h
+++ b/arch/arc/include/asm/bitops.h
@@ -370,6 +370,7 @@ static inline __attribute__ ((const)) int __ffs(unsigned long x)
 #define ffz(x)	__ffs(~(x))
 
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/lock.h>
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h
index e943e6c..99f28a6 100644
--- a/arch/arm/include/asm/bitops.h
+++ b/arch/arm/include/asm/bitops.h
@@ -313,6 +313,7 @@ static inline unsigned long __ffs(unsigned long x)
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #ifdef __ARMEB__
diff --git a/arch/arm64/include/asm/bitops.h b/arch/arm64/include/asm/bitops.h
index 9c19594..eac4965 100644
--- a/arch/arm64/include/asm/bitops.h
+++ b/arch/arm64/include/asm/bitops.h
@@ -44,6 +44,7 @@ extern int test_and_change_bit(int nr, volatile unsigned long *p);
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/non-atomic.h>
diff --git a/arch/c6x/include/asm/bitops.h b/arch/c6x/include/asm/bitops.h
index f0ab012..94eb0d1 100644
--- a/arch/c6x/include/asm/bitops.h
+++ b/arch/c6x/include/asm/bitops.h
@@ -87,6 +87,7 @@ static inline int ffs(int x)
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/atomic.h>
diff --git a/arch/cris/include/asm/bitops.h b/arch/cris/include/asm/bitops.h
index 8062cb5..06bc246 100644
--- a/arch/cris/include/asm/bitops.h
+++ b/arch/cris/include/asm/bitops.h
@@ -36,6 +36,7 @@
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/lock.h>
 
diff --git a/arch/frv/include/asm/bitops.h b/arch/frv/include/asm/bitops.h
index 0df8e95..f2a7ee8 100644
--- a/arch/frv/include/asm/bitops.h
+++ b/arch/frv/include/asm/bitops.h
@@ -314,6 +314,7 @@ int __ilog2_u64(u64 n)
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/le.h>
diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h
index 05999ab..e392db2 100644
--- a/arch/h8300/include/asm/bitops.h
+++ b/arch/h8300/include/asm/bitops.h
@@ -172,6 +172,7 @@ static inline unsigned long __ffs(unsigned long word)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic.h>
diff --git a/arch/hexagon/include/asm/bitops.h b/arch/hexagon/include/asm/bitops.h
index 5e4a59b..2df614e 100644
--- a/arch/hexagon/include/asm/bitops.h
+++ b/arch/hexagon/include/asm/bitops.h
@@ -290,6 +290,7 @@ static inline unsigned long __fls(unsigned long word)
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic.h>
diff --git a/arch/m32r/include/asm/bitops.h b/arch/m32r/include/asm/bitops.h
index 86ba2b4..e3cf46b 100644
--- a/arch/m32r/include/asm/bitops.h
+++ b/arch/m32r/include/asm/bitops.h
@@ -259,6 +259,7 @@ static __inline__ int test_and_change_bit(int nr, volatile void * addr)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #endif /* __KERNEL__ */
diff --git a/arch/m68k/include/asm/bitops.h b/arch/m68k/include/asm/bitops.h
index b4a9b0d..fd673ea 100644
--- a/arch/m68k/include/asm/bitops.h
+++ b/arch/m68k/include/asm/bitops.h
@@ -519,6 +519,7 @@ static inline int __fls(int x)
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #endif /* __KERNEL__ */
 
diff --git a/arch/metag/include/asm/bitops.h b/arch/metag/include/asm/bitops.h
index 2671134..ad13087 100644
--- a/arch/metag/include/asm/bitops.h
+++ b/arch/metag/include/asm/bitops.h
@@ -118,6 +118,7 @@ static inline int test_and_change_bit(unsigned int bit,
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
diff --git a/arch/mn10300/include/asm/bitops.h b/arch/mn10300/include/asm/bitops.h
index fe6f8e2..60761b7 100644
--- a/arch/mn10300/include/asm/bitops.h
+++ b/arch/mn10300/include/asm/bitops.h
@@ -225,6 +225,7 @@ int ffs(int x)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
 #include <asm-generic/bitops/le.h>
 
diff --git a/arch/openrisc/include/asm/bitops.h b/arch/openrisc/include/asm/bitops.h
index 3003cda..8c97642 100644
--- a/arch/openrisc/include/asm/bitops.h
+++ b/arch/openrisc/include/asm/bitops.h
@@ -43,6 +43,7 @@
 #include <asm-generic/bitops/sched.h>
 #include <asm/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/atomic.h>
diff --git a/arch/parisc/include/asm/bitops.h b/arch/parisc/include/asm/bitops.h
index 3f9406d..867ba10 100644
--- a/arch/parisc/include/asm/bitops.h
+++ b/arch/parisc/include/asm/bitops.h
@@ -211,6 +211,7 @@ static __inline__ int fls(int x)
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 8043f10..198eead 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -460,6 +460,7 @@ static inline int fls(int word)
 #include <asm-generic/bitops/ffz.h>
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h
index fc8e652..4bf0c35 100644
--- a/arch/sh/include/asm/bitops.h
+++ b/arch/sh/include/asm/bitops.h
@@ -86,6 +86,7 @@ static inline unsigned long ffz(unsigned long word)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
diff --git a/arch/xtensa/include/asm/bitops.h b/arch/xtensa/include/asm/bitops.h
index 3f44fa2..981fa83 100644
--- a/arch/xtensa/include/asm/bitops.h
+++ b/arch/xtensa/include/asm/bitops.h
@@ -229,6 +229,7 @@ test_and_change_bit(unsigned int bit, volatile unsigned long *p)
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
 
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 
-- 
2.5.5

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From: Simone Mannori <simone.mannori@gmail.com>
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Hello everyone,

I have recenty bought a second-hand HP c8000 workstation and I would
like to install Linux.
The c8000 has arrived with a pre-installed HP-UX 11 and works
perfectly (no hardware issues).

No matter Debian or Gentoo versions, the install CD/DVD boot/install
process hangs in the very same place. Just to limit the discussion to
a specific case, I would like to take in account the latest Debian 8.0
unstable: http://ftp.debian-ports.org/debian-cd/hppa/debian-8.0
( https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation )

The c8000 has TWO serial ports (A and B). Using null modem cables I
have connected both serial ports to a Dell desktop with two serial
ports and two serial terminals (9600, 8, n ,1) programs open.

Serial A : a lot of diagnostic and booting messages. The c8000 "bios"
produces a lot of "post" messages on the Serial A port.

Serial B : none

The CD/DVD Linux install disk boots and produce a series of messages
on the VGA monitor, then hungs. No further messages on the built-in
serial ports A and B. Game over ?

On Internet I have found serveral posts that point out the necessity
of a PCI serial port "PC compatible UART". I will try it as soon it
will available.

Just to be sure, can you confirm/negate/answer to the following questions?

Q1. On HP c8000 the built-in serial ports A and B are useless for
Linux installation. A PCI serial card with a PC compatible UART must
be used.

Q2. After installation, serial ports A and B are still unusable with
Linux or they become available?

Q3. Is it possible to install Linux and boot from an IDE/PATA disk or
any IDE/PATA disk will be available only as "data disk" (no boot; boot
works only on SCSI disks)?

Q3. I have found that c8000 "bios" has an x86 emulator capable to
detect and initialise PCI and AGP "x86 PC" cards with x86 coded
VGA-BIOS. It is correct?

Q4. Recent kernel and X11 versions have built-in hardware support for
OpenGL for the models where the manifacture has released the technical
specs. Why on Linux-hppa the hardware acceleration is not supported?

Q5. After the installation, the built-in Ethernet interface will
becomes available or I need to install a second PCI network card?

Q6. Recent kernel versions have built-in Comedi data acquisition
drivers built-in. If I will install a compatible DAQ card in a PCI
slot, it will works?

Q7. Someone has tried any hard-real-time-patched linux kernel on
pa-risc machines (like RT-PREEMPT or RTAI) or other tricks to reduce
kernel latency (like forced cpu assignement to a specific process)?

Thanks in advance for your help. A lot of hppa/c8000 hardware is now
available at ridiculous prices, therefore I suppose that the answer to
my questions in a single thread will help a lot of hppa newbies like
me.

    Simone Mannori - Italy
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: HP c8000 linux install issues, troubles and questions
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> Q1. On HP c8000 the built-in serial ports A and B are useless for
> Linux installation. A PCI serial card with a PC compatible UART must
> be used.
> 
> Q2. After installation, serial ports A and B are still unusable with
> Linux or they become available?

Both ports will work, but they have non-standard names. You need to pass 
"console=ttyB0" to see the boot messages.

> Q3. Is it possible to install Linux and boot from an IDE/PATA disk or
> any IDE/PATA disk will be available only as "data disk" (no boot; boot
> works only on SCSI disks)?

I have installed mine from an IDE CD to SCSI disks, no idea if booting from 
IDE disks works.

> Q3. I have found that c8000 "bios" has an x86 emulator capable to
> detect and initialise PCI and AGP "x86 PC" cards with x86 coded
> VGA-BIOS. It is correct?

Yes, you can use standard AGP cards. I have not done it myself, but a 
colleague did.

> Q4. Recent kernel and X11 versions have built-in hardware support for
> OpenGL for the models where the manifacture has released the technical
> specs. Why on Linux-hppa the hardware acceleration is not supported?

Probably because noone did it.

> Q5. After the installation, the built-in Ethernet interface will
> becomes available or I need to install a second PCI network card?

Works fine, e1000 driver.

> Q6. Recent kernel versions have built-in Comedi data acquisition
> drivers built-in. If I will install a compatible DAQ card in a PCI
> slot, it will works?

None idea, but if not it's probably just a bug.

> Q7. Someone has tried any hard-real-time-patched linux kernel on
> pa-risc machines (like RT-PREEMPT or RTAI) or other tricks to reduce
> kernel latency (like forced cpu assignement to a specific process)?

I did not. The machine is slow enough that I'm happy for every throughput I 
get without this ;)

Greetings,

Eike
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From: "Helge Deller" <deller@gmx.de>
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Subject: Aw: Re: HP c8000 linux install issues, troubles and questions
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> > Q1. On HP c8000 the built-in serial ports A and B are useless for
> > Linux installation. A PCI serial card with a PC compatible UART must
> > be used.

No, the serial ports on C8000 are fully useable.
No need to add other serial cards.

> > Q2. After installation, serial ports A and B are still unusable with
> > Linux or they become available?
> 
> Both ports will work, but they have non-standard names. You need to pass 
> "console=ttyB0" to see the boot messages.

With the debian install image you don't need to do any changes to the names.
Please read the documentation at
https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation
especially this part:
- Installation of a C8000 workstation needs to happen via serial console since the install image will not activate the ATI graphics card.
- After installation the ATI cards will work in non-accelerated mode though. 

I'd suggest to just plug the graphics cable and keyboard cable, and then
install via serial port (that works, I did it on my C8000 machines).

> > Q3. Is it possible to install Linux and boot from an IDE/PATA disk or
> > any IDE/PATA disk will be available only as "data disk" (no boot; boot
> > works only on SCSI disks)?
> 
> I have installed mine from an IDE CD to SCSI disks, no idea if booting from 
> IDE disks works.

Yes, installing and/or booting from IDE hard disc drive or CD works.
 
> > Q3. I have found that c8000 "bios" has an x86 emulator capable to
> > detect and initialise PCI and AGP "x86 PC" cards with x86 coded
> > VGA-BIOS. It is correct?
> 
> Yes, you can use standard AGP cards. I have not done it myself, but a 
> colleague did.

I never tried.
 
> > Q4. Recent kernel and X11 versions have built-in hardware support for
> > OpenGL for the models where the manifacture has released the technical
> > specs. Why on Linux-hppa the hardware acceleration is not supported?
> 
> Probably because noone did it.

We have problems initializing the ATI cards to a state where the
standard Linux drivers can take over.
Not sure where exactly the problem is.
Look at the kernel messages, something like "Initialization of ring failed..."

> > Q5. After the installation, the built-in Ethernet interface will
> > becomes available or I need to install a second PCI network card?
> 
> Works fine, e1000 driver.

Correct.

> > Q6. Recent kernel versions have built-in Comedi data acquisition
> > drivers built-in. If I will install a compatible DAQ card in a PCI
> > slot, it will works?
> 
> None idea, but if not it's probably just a bug.

No idea. Try it and report back.

> > Q7. Someone has tried any hard-real-time-patched linux kernel on
> > pa-risc machines (like RT-PREEMPT or RTAI) or other tricks to reduce
> > kernel latency (like forced cpu assignement to a specific process)?
> 
> I did not. The machine is slow enough that I'm happy for every throughput I 
> get without this ;)

I didn't tried either.

Helge
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Thanks a lot for your answers and suggestions, but on a specific point
I'm really perplexed.

> With the debian install image you don't need to do any changes to the names.
> Please read the documentation at
> https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation
> especially this part:
> - Installation of a C8000 workstation needs to happen via serial console since the install image will not activate the ATI graphics card.
> - After installation the ATI cards will work in non-accelerated mode though.
>
> I'd suggest to just plug the graphics cable and keyboard cable, and then
> install via serial port (that works, I did it on my C8000 machines).

Serial A (c8000) --> COM1 (Dell 490)
Serial B (c8000) --> COM2 (Dell 490)

Both serial ports use tied&tested null modem cables and 9600,8,N,1
standard setting; Dell 490 runs Win8.1 with two terminal programs
open.

Serial A shows only BIOS/POST messages; Serial B is dead.

I'm using Debian 8.0 ustable boot CD "debian-8.0-hppa-CD-1.iso"; the
CD boot perfecty (usual linux boot messages on vga monitor)  then
hung, looking for a serial port.

> https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation

said " Installation of a C8000 workstation needs to happen via serial
console since the install image will not activate the ATI graphics
card. After installation the ATI cards will work in non-accelerated
mode though. " .... but other people said that you need an additional
PCI serial card with PC-compatible UART.

Question: "Can you tell me which serial port (A or B?) and parameters
(baud rate, n-bits, stop bit, parity, etc). you have used to complete
the Debian installation? "

Thanks in advance for your help.

  Simone Mannori - Italy
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From: "Helge Deller" <deller@gmx.de>
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Subject: Aw: Re: Re: HP c8000 linux install issues, troubles and questions
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Hi Simone,

> Thanks a lot for your answers and suggestions, but on a specific point
> I'm really perplexed.
> 
> > With the debian install image you don't need to do any changes to the names.
> > Please read the documentation at
> > https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation
> > especially this part:
> > - Installation of a C8000 workstation needs to happen via serial console since the install image will not activate the ATI graphics card.
> > - After installation the ATI cards will work in non-accelerated mode though.
> >
> > I'd suggest to just plug the graphics cable and keyboard cable, and then
> > install via serial port (that works, I did it on my C8000 machines).
> 
> Serial A (c8000) --> COM1 (Dell 490)
> Serial B (c8000) --> COM2 (Dell 490)
> 
> Both serial ports use tied&tested null modem cables and 9600,8,N,1
> standard setting; Dell 490 runs Win8.1 with two terminal programs
> open.
> 
> Serial A shows only BIOS/POST messages; Serial B is dead.

Yes, that's OK.
If you see the POST messages on Serial A, it's correct.

Here is the manual for the C8000:
https://parisc.wiki.kernel.org/images-parisc/1/18/HP_C8000_Manual.pdf

This is how you should do it:
1. Power *off* the C8000 first.
2. Plug out the graphics cable and keyboard cable.
3. Power *on* the C8000
4. It will show POST messages on the serialA, detect that the cables were plugged and present the "Main Menu" on the serial port
(see page 2-4 in the PDF)
5. With the "PATH" command, you can see the current console/keyboard paths.
6. Make sure, that the "console path" is not "graphXYZ" and the "keyboard path" is not "USB_XYZ".
Instead run "path console serial0"  (or "path console serialA" - please check!).
7. After setting the console path to serialA, boot from the CD/DVD.

> I'm using Debian 8.0 ustable boot CD "debian-8.0-hppa-CD-1.iso"; the
> CD boot perfecty (usual linux boot messages on vga monitor)  then
> hung, looking for a serial port.
> 
> > https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation
> 
> said " Installation of a C8000 workstation needs to happen via serial
> console since the install image will not activate the ATI graphics
> card. After installation the ATI cards will work in non-accelerated
> mode though. " 

Yes.

>.... but other people said that you need an additional
> PCI serial card with PC-compatible UART.

Who says this ? Links?
 
> Question: "Can you tell me which serial port (A or B?) and parameters
> (baud rate, n-bits, stop bit, parity, etc). you have used to complete
> the Debian installation? "

9600,8,N,1 is the default.
Since you see the post messages, you should be fine.

Helge
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Subject: Re: Aw: Re: Re: HP c8000 linux install issues, troubles and questions
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On 29.03.2016 12:01, Helge Deller wrote:
> Here is the manual for the C8000:
> https://parisc.wiki.kernel.org/images-parisc/1/18/HP_C8000_Manual.pdf
> 
> This is how you should do it:
> 1. Power *off* the C8000 first.
> 2. Plug out the graphics cable and keyboard cable.
> 3. Power *on* the C8000
> 4. It will show POST messages on the serialA, detect that the cables were plugged and present the "Main Menu" on the serial port
> (see page 2-4 in the PDF)
> 5. With the "PATH" command, you can see the current console/keyboard paths.
> 6. Make sure, that the "console path" is not "graphXYZ" and the "keyboard path" is not "USB_XYZ".
> Instead run "path console serial0"  (or "path console serialA" - please check!).
> 7. After setting the console path to serialA, boot from the CD/DVD.

Just for the record - this is what my C8000 shows in the "Main Menu":

Duplex Console IO Dependent Code (IODC) revision 1
------------------------------------------------------------------------------
   (c) Copyright 1995-2004, Hewlett-Packard Company, All rights reserved
------------------------------------------------------------------------------

  Processor   Speed            State           CoProcessor        Cache Size
  Number                                       State              Inst    Data
  ---------  --------   ---------------------  -----------------  ------------
      0       900 MHz   Active                 Functional         32 MB/32 MB
      1       900 MHz   Idle                   Functional         32 MB/32 MB

  Central Bus Speed (in MHz)  :        200  
  Available Memory            :    8388608  KB
  Good Memory Required        : Not initialized. Defaults to 32 MB. 

   Primary boot path:    scsiA.5             
                         0/2/1/0.5           
   Alternate boot path:  lan.0.0.0.0
                         0/3/3/0             
   Console path:         graph3
                         0/4/0/0.0           

   Current Console path: serial_A.643        
                         17.643              
   Keyboard path:        usb0
                         0/3/1/0.0           
   Keyboard path ignored for serial consoles.


 WARNING:  No usable graphics console was found on this system.  It
           may be that no graphics card is present, the graphics card
           is not functioning properly, or no USB keyboard is connected.
           The console has defaulted to a serial port.


If you choose "serial_A" as console path it should work (I don't use the graphics card either). 

Helge
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On 29.03.2016 14:39, Helge Deller wrote:
> On 29.03.2016 12:01, Helge Deller wrote:
>> Here is the manual for the C8000:
>> https://parisc.wiki.kernel.org/images-parisc/1/18/HP_C8000_Manual.pdf
>>
>> This is how you should do it:
>> 1. Power *off* the C8000 first.
>> 2. Plug out the graphics cable and keyboard cable.
>> 3. Power *on* the C8000
>> 4. It will show POST messages on the serialA, detect that the cables were plugged and present the "Main Menu" on the serial port
>> (see page 2-4 in the PDF)
>> 5. With the "PATH" command, you can see the current console/keyboard paths.
>> 6. Make sure, that the "console path" is not "graphXYZ" and the "keyboard path" is not "USB_XYZ".
>> Instead run "path console serial0"  (or "path console serialA" - please check!).
>> 7. After setting the console path to serialA, boot from the CD/DVD.
> 
> Just for the record - this is what my C8000 shows in the "Main Menu":
> 
> Duplex Console IO Dependent Code (IODC) revision 1
> ------------------------------------------------------------------------------
>    (c) Copyright 1995-2004, Hewlett-Packard Company, All rights reserved
> ------------------------------------------------------------------------------
> 
>   Processor   Speed            State           CoProcessor        Cache Size
>   Number                                       State              Inst    Data
>   ---------  --------   ---------------------  -----------------  ------------
>       0       900 MHz   Active                 Functional         32 MB/32 MB
>       1       900 MHz   Idle                   Functional         32 MB/32 MB
> 
>   Central Bus Speed (in MHz)  :        200  
>   Available Memory            :    8388608  KB
>   Good Memory Required        : Not initialized. Defaults to 32 MB. 
> 
>    Primary boot path:    scsiA.5             
>                          0/2/1/0.5           
>    Alternate boot path:  lan.0.0.0.0
>                          0/3/3/0             
>    Console path:         graph3
>                          0/4/0/0.0           
> 
>    Current Console path: serial_A.643        
>                          17.643              
>    Keyboard path:        usb0
>                          0/3/1/0.0           
>    Keyboard path ignored for serial consoles.
> 
> 
>  WARNING:  No usable graphics console was found on this system.  It
>            may be that no graphics card is present, the graphics card
>            is not functioning properly, or no USB keyboard is connected.
>            The console has defaulted to a serial port.
> 
> 
> If you choose "serial_A" as console path it should work (I don't use the graphics card either). 

By the way, the PALO boot loader will automatically add "console=ttyS0" to the kernel command line in that case.

Helge
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Success !

The key moves were disconnect keyboard and monitor first, connect to
Serial Port A and use the terminal to change default console to serial
port ("path con serial_A" command). With this configuration, all the
communication pass through to the Serial Port A and the Debian
installation runs clean and sweet.
Just to be clear for the next newbie, your Debian 8.0
_needs_internet_connection active to complete the installation The
c8000 built in Ethernet port is automatically configured with DHCP.
Hard disk partioning and formatting is also very smooth if you choose
the "easy" options (full disk,single partition).
As desktop, I choose Mate (I'm a Linux Mint fan).

I have rebooted the c8000 with a full HD monitor, keyboard and mouse
attached. With the serial terminal I have changed default console to
"graph3" (the AGP video card). Booting from the hard disk with Debian
installed open the classic login screen. The full HD monitor was
correctly detected and the resolution was the right one. Synaptic is
installed by defalt, so additional software installation is definetely
not an issue. Who said that Debian was difficult to install and
configure?

Sometime windows dragging and updating looks slow. No 2D acceleration,
frame buffer only? I don't know.

But the good news are not finished: installing "mesa-utils" I have
verified that 3D accelerated OpenGL is active and running (glxinfo is
OK and glxgears runs at 50 fps).

Thanks a lot for your very helpful guide to the installation process:
linux-parisc is one the most "newbie-friendy" mailing list of the
Linux Universe.

If you think useful, I'm available to write or update a wiki page for
Linux on the HP c8000. Otherwise, I will open a dedicated blog and
send you the link.

//**-----------------

Now, I'm fighting with a very hardware issue: the screws of the PA
CPUs are non standard hex with a center pin. I hate this things.
Yesterday evening I was ready to upgrade from a single PA-8800/900 MHz
to a dual PA-8900/1GHz when I have discovered the screw issue. Today,
I'm going to go the Forge and build a "compatible" tool. Just for my
curiosity: "Have you found a compatible tool?".

Next episode: "For a fist of MIPS". "What happen when a quad-core HP
c8000 (2 x PA-8900, 1GHz) meets a quad-core Raspberry PI 3 (ARM
Cortex-A53, 1.2 GHz) ?"

Simone Mannori  - Italy


On 29 March 2016 at 14:41, Helge Deller <deller@gmx.de> wrote:
> On 29.03.2016 14:39, Helge Deller wrote:
>> On 29.03.2016 12:01, Helge Deller wrote:
>>> Here is the manual for the C8000:
>>> https://parisc.wiki.kernel.org/images-parisc/1/18/HP_C8000_Manual.pdf
>>>
>>> This is how you should do it:
>>> 1. Power *off* the C8000 first.
>>> 2. Plug out the graphics cable and keyboard cable.
>>> 3. Power *on* the C8000
>>> 4. It will show POST messages on the serialA, detect that the cables were plugged and present the "Main Menu" on the serial port
>>> (see page 2-4 in the PDF)
>>> 5. With the "PATH" command, you can see the current console/keyboard paths.
>>> 6. Make sure, that the "console path" is not "graphXYZ" and the "keyboard path" is not "USB_XYZ".
>>> Instead run "path console serial0"  (or "path console serialA" - please check!).
>>> 7. After setting the console path to serialA, boot from the CD/DVD.
>>
>> Just for the record - this is what my C8000 shows in the "Main Menu":
>>
>> Duplex Console IO Dependent Code (IODC) revision 1
>> ------------------------------------------------------------------------------
>>    (c) Copyright 1995-2004, Hewlett-Packard Company, All rights reserved
>> ------------------------------------------------------------------------------
>>
>>   Processor   Speed            State           CoProcessor        Cache Size
>>   Number                                       State              Inst    Data
>>   ---------  --------   ---------------------  -----------------  ------------
>>       0       900 MHz   Active                 Functional         32 MB/32 MB
>>       1       900 MHz   Idle                   Functional         32 MB/32 MB
>>
>>   Central Bus Speed (in MHz)  :        200
>>   Available Memory            :    8388608  KB
>>   Good Memory Required        : Not initialized. Defaults to 32 MB.
>>
>>    Primary boot path:    scsiA.5
>>                          0/2/1/0.5
>>    Alternate boot path:  lan.0.0.0.0
>>                          0/3/3/0
>>    Console path:         graph3
>>                          0/4/0/0.0
>>
>>    Current Console path: serial_A.643
>>                          17.643
>>    Keyboard path:        usb0
>>                          0/3/1/0.0
>>    Keyboard path ignored for serial consoles.
>>
>>
>>  WARNING:  No usable graphics console was found on this system.  It
>>            may be that no graphics card is present, the graphics card
>>            is not functioning properly, or no USB keyboard is connected.
>>            The console has defaulted to a serial port.
>>
>>
>> If you choose "serial_A" as console path it should work (I don't use the graphics card either).
>
> By the way, the PALO boot loader will automatically add "console=ttyS0" to the kernel command line in that case.
>
> Helge
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Hi Simone,

> Success !

Great!

> The key moves were disconnect keyboard and monitor first, connect to
> Serial Port A and use the terminal to change default console to serial
> port ("path con serial_A" command). With this configuration, all the
> communication pass through to the Serial Port A and the Debian
> installation runs clean and sweet.

Just for the record:
The C8000 is the ONLY parisc machine where you have to install debian
via serial console. ALL OTHER machines can be installed the usual way
with monitor and keyboard.

> Just to be clear for the next newbie, your Debian 8.0
> _needs_internet_connection active to complete the installation The
> c8000 built in Ethernet port is automatically configured with DHCP.

Yes, the current install images need network connection.
I did something wrong when I created them, but we are planning to build
new install images soon which won't require network connection.

> Hard disk partioning and formatting is also very smooth if you choose
> the "easy" options (full disk,single partition).
> As desktop, I choose Mate (I'm a Linux Mint fan).
> 
> I have rebooted the c8000 with a full HD monitor, keyboard and mouse
> attached. With the serial terminal I have changed default console to
> "graph3" (the AGP video card). Booting from the hard disk with Debian
> installed open the classic login screen. The full HD monitor was
> correctly detected and the resolution was the right one. Synaptic is
> installed by defalt, so additional software installation is definetely
> not an issue. Who said that Debian was difficult to install and
> configure?
> 
> Sometime windows dragging and updating looks slow. No 2D acceleration,
> frame buffer only? I don't know.

Yes, currently it's unaccelerated frame buffer only.
 
> But the good news are not finished: installing "mesa-utils" I have
> verified that 3D accelerated OpenGL is active and running (glxinfo is
> OK and glxgears runs at 50 fps).

I'm wondering here. So it seems the ati userspace driver seems to 
correctly initialize the 3D engine ?
 
> Thanks a lot for your very helpful guide to the installation process:
> linux-parisc is one the most "newbie-friendy" mailing list of the
> Linux Universe.
> 
> If you think useful, I'm available to write or update a wiki page for
> Linux on the HP c8000. Otherwise, I will open a dedicated blog and
> send you the link.

It would be great if you could write it up in the wiki.
Please request an account here:
https://parisc.wiki.kernel.org/index.php/Special:RequestAccount
I will then give you permissions to our wiki.

> //**-----------------
> 
> Now, I'm fighting with a very hardware issue: the screws of the PA
> CPUs are non standard hex with a center pin. I hate this things.
> Yesterday evening I was ready to upgrade from a single PA-8800/900 MHz
> to a dual PA-8900/1GHz 

I'm not sure if this will simply work. I was looking at the idea myself
once, and googling for that it seems that some firmware update needs to
be done in order for the machine to accept the additional CPU.
If you do it, please let us know...

> when I have discovered the screw issue. Today,
> I'm going to go the Forge and build a "compatible" tool. Just for my
> curiosity: "Have you found a compatible tool?".
> 
> Next episode: "For a fist of MIPS". "What happen when a quad-core HP
> c8000 (2 x PA-8900, 1GHz) meets a quad-core Raspberry PI 3 (ARM
> Cortex-A53, 1.2 GHz) ?"
> 
> Simone Mannori  - Italy

Helge


> 
> 
> On 29 March 2016 at 14:41, Helge Deller <deller@gmx.de> wrote:
> > On 29.03.2016 14:39, Helge Deller wrote:
> >> On 29.03.2016 12:01, Helge Deller wrote:
> >>> Here is the manual for the C8000:
> >>> https://parisc.wiki.kernel.org/images-parisc/1/18/HP_C8000_Manual.pdf
> >>>
> >>> This is how you should do it:
> >>> 1. Power *off* the C8000 first.
> >>> 2. Plug out the graphics cable and keyboard cable.
> >>> 3. Power *on* the C8000
> >>> 4. It will show POST messages on the serialA, detect that the cables were plugged and present the "Main Menu" on the serial port
> >>> (see page 2-4 in the PDF)
> >>> 5. With the "PATH" command, you can see the current console/keyboard paths.
> >>> 6. Make sure, that the "console path" is not "graphXYZ" and the "keyboard path" is not "USB_XYZ".
> >>> Instead run "path console serial0"  (or "path console serialA" - please check!).
> >>> 7. After setting the console path to serialA, boot from the CD/DVD.
> >>
> >> Just for the record - this is what my C8000 shows in the "Main Menu":
> >>
> >> Duplex Console IO Dependent Code (IODC) revision 1
> >> ------------------------------------------------------------------------------
> >>    (c) Copyright 1995-2004, Hewlett-Packard Company, All rights reserved
> >> ------------------------------------------------------------------------------
> >>
> >>   Processor   Speed            State           CoProcessor        Cache Size
> >>   Number                                       State              Inst    Data
> >>   ---------  --------   ---------------------  -----------------  ------------
> >>       0       900 MHz   Active                 Functional         32 MB/32 MB
> >>       1       900 MHz   Idle                   Functional         32 MB/32 MB
> >>
> >>   Central Bus Speed (in MHz)  :        200
> >>   Available Memory            :    8388608  KB
> >>   Good Memory Required        : Not initialized. Defaults to 32 MB.
> >>
> >>    Primary boot path:    scsiA.5
> >>                          0/2/1/0.5
> >>    Alternate boot path:  lan.0.0.0.0
> >>                          0/3/3/0
> >>    Console path:         graph3
> >>                          0/4/0/0.0
> >>
> >>    Current Console path: serial_A.643
> >>                          17.643
> >>    Keyboard path:        usb0
> >>                          0/3/1/0.0
> >>    Keyboard path ignored for serial consoles.
> >>
> >>
> >>  WARNING:  No usable graphics console was found on this system.  It
> >>            may be that no graphics card is present, the graphics card
> >>            is not functioning properly, or no USB keyboard is connected.
> >>            The console has defaulted to a serial port.
> >>
> >>
> >> If you choose "serial_A" as console path it should work (I don't use the graphics card either).
> >
> > By the way, the PALO boot loader will automatically add "console=ttyS0" to the kernel command line in that case.
> >
> > Helge
> 
--
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From: Simone Mannori <simone.mannori@gmail.com>
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Subject: Re: Re: Re: Re: HP c8000 linux install issues, troubles and questions
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Cc: Helge Deller <deller@gmx.de>,
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Success: confirmed CPU upgrade from 1 to 2 CPUs (four cores) !

A very skilled friend has borrowed the right tools.
Apart some mechanical "delicatessen" the upgrade has been
strightforward and successfull.
HP-UX diagnostic program "SAM" confirms 4 cores.

Now, I'm installing Debian 8.0 again, but on an IDE/PATA 7200 rpm 120G
hard disk: I want to compare the performance respect the 15.000 rpm
SCSI beast used yesterday.

Simone Mannori - Italy






On 30 March 2016 at 12:57, Graham Gower <graham.gower@gmail.com> wrote:
>
>
> On 30 March 2016 at 20:29, Helge Deller <deller@gmx.de> wrote:
>>
>> Hi Simone,
>>
>> > Success !
>>
>> Great!
>>
>> > The key moves were disconnect keyboard and monitor first, connect to
>> > Serial Port A and use the terminal to change default console to serial
>> > port ("path con serial_A" command). With this configuration, all the
>> > communication pass through to the Serial Port A and the Debian
>> > installation runs clean and sweet.
>>
>> Just for the record:
>> The C8000 is the ONLY parisc machine where you have to install debian
>> via serial console. ALL OTHER machines can be installed the usual way
>> with monitor and keyboard.
>>
>> > Just to be clear for the next newbie, your Debian 8.0
>> > _needs_internet_connection active to complete the installation The
>> > c8000 built in Ethernet port is automatically configured with DHCP.
>>
>> Yes, the current install images need network connection.
>> I did something wrong when I created them, but we are planning to build
>> new install images soon which won't require network connection.
>>
>> > Hard disk partioning and formatting is also very smooth if you choose
>> > the "easy" options (full disk,single partition).
>> > As desktop, I choose Mate (I'm a Linux Mint fan).
>> >
>> > I have rebooted the c8000 with a full HD monitor, keyboard and mouse
>> > attached. With the serial terminal I have changed default console to
>> > "graph3" (the AGP video card). Booting from the hard disk with Debian
>> > installed open the classic login screen. The full HD monitor was
>> > correctly detected and the resolution was the right one. Synaptic is
>> > installed by defalt, so additional software installation is definetely
>> > not an issue. Who said that Debian was difficult to install and
>> > configure?
>> >
>> > Sometime windows dragging and updating looks slow. No 2D acceleration,
>> > frame buffer only? I don't know.
>>
>> Yes, currently it's unaccelerated frame buffer only.
>>
>> > But the good news are not finished: installing "mesa-utils" I have
>> > verified that 3D accelerated OpenGL is active and running (glxinfo is
>> > OK and glxgears runs at 50 fps).
>>
>> I'm wondering here. So it seems the ati userspace driver seems to
>> correctly initialize the 3D engine ?
>
>
> I'm pretty sure this is software emulation. Try running 'glxgears -info'.
>
>>
>>
>> > Thanks a lot for your very helpful guide to the installation process:
>> > linux-parisc is one the most "newbie-friendy" mailing list of the
>> > Linux Universe.
>> >
>> > If you think useful, I'm available to write or update a wiki page for
>> > Linux on the HP c8000. Otherwise, I will open a dedicated blog and
>> > send you the link.
>>
>> It would be great if you could write it up in the wiki.
>> Please request an account here:
>> https://parisc.wiki.kernel.org/index.php/Special:RequestAccount
>> I will then give you permissions to our wiki.
>>
>> > //**-----------------
>> >
>> > Now, I'm fighting with a very hardware issue: the screws of the PA
>> > CPUs are non standard hex with a center pin. I hate this things.
>> > Yesterday evening I was ready to upgrade from a single PA-8800/900 MHz
>> > to a dual PA-8900/1GHz
>>
>> I'm not sure if this will simply work. I was looking at the idea myself
>> once, and googling for that it seems that some firmware update needs to
>> be done in order for the machine to accept the additional CPU.
>> If you do it, please let us know...
>
>
> I have done this with success. You can buy the required tools cheaply on
> ebay. You'll need a T15 Security Torx Screwdriver and a *long* 2.5mm allen
> key. The c8000 user manual describes the process.
>
> My understanding is that a motherboard can in principle be locked to
> disallow the addition of a second CPU, which would require some kind of
> unlock code from the vendor. I don't know if any C8000's are locked in
> practice, but none of the three boards I've used were locked (only one board
> had two CPUs to start with).
>
>>
>>
>> > when I have discovered the screw issue. Today,
>> > I'm going to go the Forge and build a "compatible" tool. Just for my
>> > curiosity: "Have you found a compatible tool?".
>> >
>> > Next episode: "For a fist of MIPS". "What happen when a quad-core HP
>> > c8000 (2 x PA-8900, 1GHz) meets a quad-core Raspberry PI 3 (ARM
>> > Cortex-A53, 1.2 GHz) ?"
>> >
>> > Simone Mannori  - Italy
>>
>> Helge
>>
>>
>> >
>> >
>> > On 29 March 2016 at 14:41, Helge Deller <deller@gmx.de> wrote:
>> > > On 29.03.2016 14:39, Helge Deller wrote:
>> > >> On 29.03.2016 12:01, Helge Deller wrote:
>> > >>> Here is the manual for the C8000:
>> > >>>
>> > >>> https://parisc.wiki.kernel.org/images-parisc/1/18/HP_C8000_Manual.pdf
>> > >>>
>> > >>> This is how you should do it:
>> > >>> 1. Power *off* the C8000 first.
>> > >>> 2. Plug out the graphics cable and keyboard cable.
>> > >>> 3. Power *on* the C8000
>> > >>> 4. It will show POST messages on the serialA, detect that the cables
>> > >>> were plugged and present the "Main Menu" on the serial port
>> > >>> (see page 2-4 in the PDF)
>> > >>> 5. With the "PATH" command, you can see the current console/keyboard
>> > >>> paths.
>> > >>> 6. Make sure, that the "console path" is not "graphXYZ" and the
>> > >>> "keyboard path" is not "USB_XYZ".
>> > >>> Instead run "path console serial0"  (or "path console serialA" -
>> > >>> please check!).
>> > >>> 7. After setting the console path to serialA, boot from the CD/DVD.
>> > >>
>> > >> Just for the record - this is what my C8000 shows in the "Main Menu":
>> > >>
>> > >> Duplex Console IO Dependent Code (IODC) revision 1
>> > >>
>> > >> ------------------------------------------------------------------------------
>> > >>    (c) Copyright 1995-2004, Hewlett-Packard Company, All rights
>> > >> reserved
>> > >>
>> > >> ------------------------------------------------------------------------------
>> > >>
>> > >>   Processor   Speed            State           CoProcessor
>> > >> Cache Size
>> > >>   Number                                       State
>> > >> Inst    Data
>> > >>   ---------  --------   ---------------------  -----------------
>> > >> ------------
>> > >>       0       900 MHz   Active                 Functional         32
>> > >> MB/32 MB
>> > >>       1       900 MHz   Idle                   Functional         32
>> > >> MB/32 MB
>> > >>
>> > >>   Central Bus Speed (in MHz)  :        200
>> > >>   Available Memory            :    8388608  KB
>> > >>   Good Memory Required        : Not initialized. Defaults to 32 MB.
>> > >>
>> > >>    Primary boot path:    scsiA.5
>> > >>                          0/2/1/0.5
>> > >>    Alternate boot path:  lan.0.0.0.0
>> > >>                          0/3/3/0
>> > >>    Console path:         graph3
>> > >>                          0/4/0/0.0
>> > >>
>> > >>    Current Console path: serial_A.643
>> > >>                          17.643
>> > >>    Keyboard path:        usb0
>> > >>                          0/3/1/0.0
>> > >>    Keyboard path ignored for serial consoles.
>> > >>
>> > >>
>> > >>  WARNING:  No usable graphics console was found on this system.  It
>> > >>            may be that no graphics card is present, the graphics card
>> > >>            is not functioning properly, or no USB keyboard is
>> > >> connected.
>> > >>            The console has defaulted to a serial port.
>> > >>
>> > >>
>> > >> If you choose "serial_A" as console path it should work (I don't use
>> > >> the graphics card either).
>> > >
>> > > By the way, the PALO boot loader will automatically add
>> > > "console=ttyS0" to the kernel command line in that case.
>> > >
>> > > Helge
>> >
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
>
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From - Thu Nov 08 21:38:37 2018
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Cc: linux-kernel@vger.kernel.org, Jiri Slaby <jslaby@suse.cz>,
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        Yoshinori Sato <ysato@users.sourceforge.jp>,
        Richard Kuo <rkuo@codeaurora.org>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        James Hogan <james.hogan@img
To: akpm@linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/53961>

Define HAVE_EXIT_THREAD for archs which want to do something in
exit_thread. For others, let's define exit_thread as an empty inline.

This is a cleanup before we change the prototype of exit_thread to
accept a task parameter.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Chen Liqin <liqin.linux@gmail.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-cris-kernel@axis.com
Cc: linux-ia64@vger.kernel.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
Cc: linux-hexagon@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-metag@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-am33-list@redhat.com
Cc: nios2-dev@lists.rocketboards.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: user-mode-linux-user@lists.sourceforge.net
Cc: linux-xtensa@linux-xtensa.org
---
 arch/Kconfig                            |  5 +++++
 arch/alpha/kernel/process.c             |  8 --------
 arch/arc/kernel/process.c               |  7 -------
 arch/arm/Kconfig                        |  1 +
 arch/arm64/kernel/process.c             |  7 -------
 arch/avr32/Kconfig                      |  1 +
 arch/blackfin/include/asm/processor.h   |  7 -------
 arch/c6x/kernel/process.c               |  4 ----
 arch/cris/Kconfig                       |  1 +
 arch/cris/arch-v10/kernel/process.c     |  9 ---------
 arch/frv/include/asm/processor.h        |  7 -------
 arch/h8300/include/asm/processor.h      |  7 -------
 arch/hexagon/kernel/process.c           |  7 -------
 arch/ia64/Kconfig                       |  1 +
 arch/m32r/kernel/process.c              |  9 ---------
 arch/m68k/include/asm/processor.h       |  7 -------
 arch/metag/Kconfig                      |  1 +
 arch/metag/include/asm/processor.h      |  2 --
 arch/microblaze/include/asm/processor.h | 10 ----------
 arch/mips/include/asm/processor.h       |  4 ----
 arch/mn10300/Kconfig                    |  1 +
 arch/nios2/include/asm/processor.h      |  5 -----
 arch/openrisc/include/asm/processor.h   |  9 ---------
 arch/parisc/kernel/process.c            |  7 -------
 arch/powerpc/kernel/process.c           |  4 ----
 arch/s390/Kconfig                       |  1 +
 arch/score/kernel/process.c             |  2 --
 arch/sh/Kconfig                         |  1 +
 arch/sh/kernel/process_32.c             |  7 -------
 arch/sparc/Kconfig                      |  1 +
 arch/tile/Kconfig                       |  1 +
 arch/um/kernel/process.c                |  4 ----
 arch/unicore32/kernel/process.c         |  7 -------
 arch/x86/Kconfig                        |  1 +
 arch/xtensa/Kconfig                     |  1 +
 include/linux/sched.h                   |  7 +++++++
 36 files changed, 24 insertions(+), 140 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 81869a5e7e17..0f298f9123dc 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -517,6 +517,11 @@ config HAVE_ARCH_MMAP_RND_BITS
 	  - ARCH_MMAP_RND_BITS_MIN
 	  - ARCH_MMAP_RND_BITS_MAX
 
+config HAVE_EXIT_THREAD
+	bool
+	help
+	  An architecture implements exit_thread.
+
 config ARCH_MMAP_RND_BITS_MIN
 	int
 
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 84d13263ce46..b483156698d5 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -210,14 +210,6 @@ start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp)
 }
 EXPORT_SYMBOL(start_thread);
 
-/*
- * Free current thread data structures etc..
- */
-void
-exit_thread(void)
-{
-}
-
 void
 flush_thread(void)
 {
diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index a3f750e76b68..b5db9e7fd649 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -183,13 +183,6 @@ void flush_thread(void)
 {
 }
 
-/*
- * Free any architecture-specific thread data structures, etc.
- */
-void exit_thread(void)
-{
-}
-
 int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
 {
 	return 0;
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index cdfa6c2b7626..0846026c84de 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -50,6 +50,7 @@ config ARM
 	select HAVE_DMA_CONTIGUOUS if MMU
 	select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) && !CPU_ENDIAN_BE32 && MMU
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
+	select HAVE_EXIT_THREAD
 	select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
 	select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
 	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 80624829db61..5655f756e4f2 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -200,13 +200,6 @@ void show_regs(struct pt_regs * regs)
 	__show_regs(regs);
 }
 
-/*
- * Free current thread data structures etc..
- */
-void exit_thread(void)
-{
-}
-
 static void tls_thread_flush(void)
 {
 	asm ("msr tpidr_el0, xzr");
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index b6878eb64884..37d9c02be634 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -4,6 +4,7 @@ config AVR32
 	# that we usually don't need on AVR32.
 	select EXPERT
 	select HAVE_CLK
+	select HAVE_EXIT_THREAD
 	select HAVE_OPROFILE
 	select HAVE_KPROBES
 	select VIRT_TO_BUS
diff --git a/arch/blackfin/include/asm/processor.h b/arch/blackfin/include/asm/processor.h
index 7acd46653df3..0c265aba94ad 100644
--- a/arch/blackfin/include/asm/processor.h
+++ b/arch/blackfin/include/asm/processor.h
@@ -76,13 +76,6 @@ static inline void release_thread(struct task_struct *dead_task)
 }
 
 /*
- * Free current thread data structures etc..
- */
-static inline void exit_thread(void)
-{
-}
-
-/*
  * Return saved PC of a blocked thread.
  */
 #define thread_saved_pc(tsk)	(tsk->thread.pc)
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 3ae9f5a166a0..0ee7686a78f3 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -82,10 +82,6 @@ void flush_thread(void)
 {
 }
 
-void exit_thread(void)
-{
-}
-
 /*
  * Do necessary setup to start up a newly executed thread.
  */
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index e086f9e93728..10a5ccb85cd6 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -62,6 +62,7 @@ config CRIS
 	select OLD_SIGSUSPEND
 	select OLD_SIGACTION
 	select ARCH_REQUIRE_GPIOLIB
+	select HAVE_EXIT_THREAD if ETRAX_ARCH_V32
 	select IRQ_DOMAIN if ETRAX_ARCH_V32
 	select OF if ETRAX_ARCH_V32
 	select OF_EARLY_FLATTREE if ETRAX_ARCH_V32
diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c
index 02b783457be0..96e5afef6b47 100644
--- a/arch/cris/arch-v10/kernel/process.c
+++ b/arch/cris/arch-v10/kernel/process.c
@@ -35,15 +35,6 @@ void default_idle(void)
 	local_irq_enable();
 }
 
-/*
- * Free current thread data structures etc..
- */
-
-void exit_thread(void)
-{
-	/* Nothing needs to be done.  */
-}
-
 /* if the watchdog is enabled, we can simply disable interrupts and go
  * into an eternal loop, and the watchdog will reset the CPU after 0.1s
  * if on the other hand the watchdog wasn't enabled, we just enable it and wait
diff --git a/arch/frv/include/asm/processor.h b/arch/frv/include/asm/processor.h
index ae8d423e79d9..73f0a79ad8e6 100644
--- a/arch/frv/include/asm/processor.h
+++ b/arch/frv/include/asm/processor.h
@@ -97,13 +97,6 @@ extern asmlinkage void *restore_user_regs(const struct user_context *target, ...
 #define forget_segments()		do { } while (0)
 
 /*
- * Free current thread data structures etc..
- */
-static inline void exit_thread(void)
-{
-}
-
-/*
  * Return saved PC of a blocked thread.
  */
 extern unsigned long thread_saved_pc(struct task_struct *tsk);
diff --git a/arch/h8300/include/asm/processor.h b/arch/h8300/include/asm/processor.h
index 54e3fd83c336..111df7397ac7 100644
--- a/arch/h8300/include/asm/processor.h
+++ b/arch/h8300/include/asm/processor.h
@@ -111,13 +111,6 @@ static inline void release_thread(struct task_struct *dead_task)
 }
 
 /*
- * Free current thread data structures etc..
- */
-static inline void exit_thread(void)
-{
-}
-
-/*
  * Return saved PC of a blocked thread.
  */
 unsigned long thread_saved_pc(struct task_struct *tsk);
diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c
index a9ebd471823a..d9edfd3fc52a 100644
--- a/arch/hexagon/kernel/process.c
+++ b/arch/hexagon/kernel/process.c
@@ -137,13 +137,6 @@ void release_thread(struct task_struct *dead_task)
 }
 
 /*
- * Free any architecture-specific thread data structures, etc.
- */
-void exit_thread(void)
-{
-}
-
-/*
  * Some archs flush debug and FPU info here
  */
 void flush_thread(void)
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index b534ebab36ea..f80758cb7157 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -18,6 +18,7 @@ config IA64
 	select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
 	select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
 	select HAVE_UNSTABLE_SCHED_CLOCK
+	select HAVE_EXIT_THREAD
 	select HAVE_IDE
 	select HAVE_OPROFILE
 	select HAVE_KPROBES
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index e69221d581d5..a88b1f01e91f 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -101,15 +101,6 @@ void show_regs(struct pt_regs * regs)
 #endif
 }
 
-/*
- * Free current thread data structures etc..
- */
-void exit_thread(void)
-{
-	/* Nothing to do. */
-	DPRINTK("pid = %d\n", current->pid);
-}
-
 void flush_thread(void)
 {
 	DPRINTK("pid = %d\n", current->pid);
diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h
index 20dda1d4b860..a6ce2ec8d693 100644
--- a/arch/m68k/include/asm/processor.h
+++ b/arch/m68k/include/asm/processor.h
@@ -153,13 +153,6 @@ static inline void release_thread(struct task_struct *dead_task)
 {
 }
 
-/*
- * Free current thread data structures etc..
- */
-static inline void exit_thread(void)
-{
-}
-
 extern unsigned long thread_saved_pc(struct task_struct *tsk);
 
 unsigned long get_wchan(struct task_struct *p);
diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig
index a0fa88da3e31..e47a08d72819 100644
--- a/arch/metag/Kconfig
+++ b/arch/metag/Kconfig
@@ -11,6 +11,7 @@ config METAG
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_DYNAMIC_FTRACE
+	select HAVE_EXIT_THREAD
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_TRACER
 	select HAVE_KERNEL_BZIP2
diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index 0838ca699764..a0333ebcac35 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -134,8 +134,6 @@ static inline void release_thread(struct task_struct *dead_task)
 #define copy_segments(tsk, mm)		do { } while (0)
 #define release_segments(mm)		do { } while (0)
 
-extern void exit_thread(void);
-
 /*
  * Return saved PC of a blocked thread.
  */
diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h
index 497a988d79c2..c38d0dd91134 100644
--- a/arch/microblaze/include/asm/processor.h
+++ b/arch/microblaze/include/asm/processor.h
@@ -70,11 +70,6 @@ static inline void release_thread(struct task_struct *dead_task)
 {
 }
 
-/* Free all resources held by a thread. */
-static inline void exit_thread(void)
-{
-}
-
 extern unsigned long thread_saved_pc(struct task_struct *t);
 
 extern unsigned long get_wchan(struct task_struct *p);
@@ -127,11 +122,6 @@ static inline void release_thread(struct task_struct *dead_task)
 {
 }
 
-/* Free current thread data structures etc.  */
-static inline void exit_thread(void)
-{
-}
-
 /* Return saved (kernel) PC of a blocked thread.  */
 #  define thread_saved_pc(tsk)	\
 	((tsk)->thread.regs ? (tsk)->thread.regs->r15 : 0)
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index 06469df2b638..cfa15bad43af 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -359,10 +359,6 @@ static inline void flush_thread(void)
 {
 }
 
-static inline void exit_thread(void)
-{
-}
-
 unsigned long get_wchan(struct task_struct *p);
 
 #define __KSTK_TOS(tsk) ((unsigned long)task_stack_page(tsk) + \
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 06ddb5501ab1..9627e81a6cbb 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -1,5 +1,6 @@
 config MN10300
 	def_bool y
+	select HAVE_EXIT_THREAD
 	select HAVE_OPROFILE
 	select HAVE_UID16
 	select GENERIC_IRQ_SHOW
diff --git a/arch/nios2/include/asm/processor.h b/arch/nios2/include/asm/processor.h
index c2ba45c159c7..1c953f0cadbf 100644
--- a/arch/nios2/include/asm/processor.h
+++ b/arch/nios2/include/asm/processor.h
@@ -75,11 +75,6 @@ static inline void release_thread(struct task_struct *dead_task)
 {
 }
 
-/* Free current thread data structures etc.. */
-static inline void exit_thread(void)
-{
-}
-
 /* Return saved PC of a blocked thread. */
 #define thread_saved_pc(tsk)	((tsk)->thread.kregs->ea)
 
diff --git a/arch/openrisc/include/asm/processor.h b/arch/openrisc/include/asm/processor.h
index 4d235e3d2534..70334c9f7d24 100644
--- a/arch/openrisc/include/asm/processor.h
+++ b/arch/openrisc/include/asm/processor.h
@@ -85,15 +85,6 @@ void release_thread(struct task_struct *);
 unsigned long get_wchan(struct task_struct *p);
 
 /*
- * Free current thread data structures etc..
- */
-
-extern inline void exit_thread(void)
-{
-	/* Nothing needs to be done.  */
-}
-
-/*
  * Return saved PC of a blocked thread. For now, this is the "user" PC
  */
 extern unsigned long thread_saved_pc(struct task_struct *t);
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 809905a811ed..40639439d8b3 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -144,13 +144,6 @@ void machine_power_off(void)
 void (*pm_power_off)(void) = machine_power_off;
 EXPORT_SYMBOL(pm_power_off);
 
-/*
- * Free current thread data structures etc..
- */
-void exit_thread(void)
-{
-}
-
 void flush_thread(void)
 {
 	/* Only needs to handle fpu stuff or perf monitors.
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 612df305886b..e323020d91dd 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1326,10 +1326,6 @@ void show_regs(struct pt_regs * regs)
 		show_instructions(regs);
 }
 
-void exit_thread(void)
-{
-}
-
 void flush_thread(void)
 {
 #ifdef CONFIG_HAVE_HW_BREAKPOINT
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 43b25835325f..37941df616d9 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -130,6 +130,7 @@ config S390
 	select HAVE_DMA_API_DEBUG
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS
+	select HAVE_EXIT_THREAD
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FUNCTION_TRACER
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index a1519ad3d49d..aae9480706c2 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -56,8 +56,6 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp)
 	regs->regs[0] = sp;
 }
 
-void exit_thread(void) {}
-
 /*
  * When a process does an "exec", machine state like FPU and debug
  * registers need to be reset.  This is a hook function for that.
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 7ed20fc3fc81..cb93af8f8017 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -71,6 +71,7 @@ config SUPERH32
 
 config SUPERH64
 	def_bool ARCH = "sh64"
+	select HAVE_EXIT_THREAD
 	select KALLSYMS
 
 config ARCH_DEFCONFIG
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 2885fc9d9dcd..ee12e9451874 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -76,13 +76,6 @@ void start_thread(struct pt_regs *regs, unsigned long new_pc,
 }
 EXPORT_SYMBOL(start_thread);
 
-/*
- * Free current thread data structures etc..
- */
-void exit_thread(void)
-{
-}
-
 void flush_thread(void)
 {
 	struct task_struct *tsk = current;
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 57ffaf285c2f..b66aea06e9c9 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -20,6 +20,7 @@ config SPARC
 	select HAVE_OPROFILE
 	select HAVE_ARCH_KGDB if !SMP || SPARC64
 	select HAVE_ARCH_TRACEHOOK
+	select HAVE_EXIT_THREAD
 	select SYSCTL_EXCEPTION_TRACE
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 81719302b056..174746225577 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -3,6 +3,7 @@
 
 config TILE
 	def_bool y
+	select HAVE_EXIT_THREAD
 	select HAVE_PERF_EVENTS
 	select USE_PMC if PERF_EVENTS
 	select HAVE_DMA_API_DEBUG
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 48af59aae129..0b04711f1f18 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -103,10 +103,6 @@ void interrupt_end(void)
 		tracehook_notify_resume(regs);
 }
 
-void exit_thread(void)
-{
-}
-
 int get_current_pid(void)
 {
 	return task_pid_nr(current);
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index b008e9961465..00299c927852 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -201,13 +201,6 @@ void show_regs(struct pt_regs *regs)
 	__backtrace();
 }
 
-/*
- * Free current thread data structures etc..
- */
-void exit_thread(void)
-{
-}
-
 void flush_thread(void)
 {
 	struct thread_info *thread = current_thread_info();
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6bc6f9832d67..8f6196084eac 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -105,6 +105,7 @@ config X86
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
+	select HAVE_EXIT_THREAD
 	select HAVE_FENTRY			if X86_64
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_GRAPH_FP_TEST
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index e832d3e9835e..c6b2ee78b617 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -15,6 +15,7 @@ config XTENSA
 	select GENERIC_PCI_IOMAP
 	select GENERIC_SCHED_CLOCK
 	select HAVE_DMA_API_DEBUG
+	select HAVE_EXIT_THREAD
 	select HAVE_FUNCTION_TRACER
 	select HAVE_FUTEX_CMPXCHG if !MMU
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 362c0e20ebbb..de5370802828 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2646,7 +2646,14 @@ static inline int copy_thread_tls(
 }
 #endif
 extern void flush_thread(void);
+
+#ifdef CONFIG_HAVE_EXIT_THREAD
 extern void exit_thread(void);
+#else
+static inline void exit_thread(void)
+{
+}
+#endif
 
 extern void exit_files(struct task_struct *);
 extern void __cleanup_sighand(struct sighand_struct *);
-- 
2.7.4




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Subject: [PATCH] parisc: Fix SIGSYS signals in compat case
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 0448a2c..3387307 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -183,6 +183,13 @@ typedef struct compat_siginfo {
 			int _band;      /* POLL_IN, POLL_OUT, POLL_MSG */
 			int _fd;
 		} _sigpoll;
+
+		/* SIGSYS */
+		struct {
+			compat_uptr_t _call_addr; /* calling user insn */
+			int _syscall;	/* triggering system call number */
+			compat_uint_t _arch;	/* AUDIT_ARCH_* of syscall */
+		} _sigsys;
 	} _sifields;
 } compat_siginfo_t;
 
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index 984abbe..c342b2e 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -371,6 +371,11 @@ copy_siginfo_to_user32 (compat_siginfo_t __user *to, const siginfo_t *from)
 			val = (compat_int_t)from->si_int;
 			err |= __put_user(val, &to->si_int);
 			break;
+		case __SI_SYS >> 16:
+			err |= __put_user(ptr_to_compat(from->si_call_addr), &to->si_call_addr);
+			err |= __put_user(from->si_syscall, &to->si_syscall);
+			err |= __put_user(from->si_arch, &to->si_arch);
+			break;
 		}
 	}
 	return err;
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix and enable seccomp filter support
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The seccomp filter support requires careful handling of task registers.
This includes reloading of the return value (%r28) and clean exiting at
syscall exit if secure_computing() returned -1. Additionally we need to
sign-extend the syscall number from signed 32bit to signed 64bit in
do_syscall_trace_enter() since the ptrace interface only allows setting
32bit values in compat mode.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 14f655c..86ed376 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -29,6 +29,7 @@ config PARISC
 	select TTY # Needed for pdc_cons.c
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_ARCH_AUDITSYSCALL
+	select HAVE_ARCH_SECCOMP_FILTER
 	select ARCH_NO_COHERENT_DMA_MMAP
 
 	help
diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h
index a5eba95..637ce8d 100644
--- a/arch/parisc/include/asm/syscall.h
+++ b/arch/parisc/include/asm/syscall.h
@@ -39,6 +39,19 @@ static inline void syscall_get_arguments(struct task_struct *tsk,
 	}
 }
 
+static inline void syscall_set_return_value(struct task_struct *task,
+					    struct pt_regs *regs,
+					    int error, long val)
+{
+	regs->gr[28] = error ? error : val;
+}
+
+static inline void syscall_rollback(struct task_struct *task,
+				    struct pt_regs *regs)
+{
+	/* do nothing */
+}
+
 static inline int syscall_get_arch(void)
 {
 	int arch = AUDIT_ARCH_PARISC;
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index ce0b2b4..8fb81a3 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -270,7 +270,8 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 long do_syscall_trace_enter(struct pt_regs *regs)
 {
 	/* Do the secure computing check first. */
-	secure_computing_strict(regs->gr[20]);
+	if (secure_computing() == -1)
+		return -1;
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
 	    tracehook_report_syscall_entry(regs)) {
@@ -296,7 +297,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 			regs->gr[23] & 0xffffffff);
 
 out:
-	return regs->gr[20];
+	/*
+	 * Sign extend the syscall number to 64bit since it may have been
+	 * modified by a compat ptrace call
+	 */
+	return (int) ((u32) regs->gr[20]);
 }
 
 void do_syscall_trace_exit(struct pt_regs *regs)
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index fbafa0d..c976ebf 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -329,6 +329,7 @@ tracesys_next:
 
 	ldo     -THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1      /* get task ptr */
 	LDREG	TI_TASK(%r1), %r1
+	LDREG   TASK_PT_GR28(%r1), %r28		/* Restore return value */
 	LDREG   TASK_PT_GR26(%r1), %r26		/* Restore the users args */
 	LDREG   TASK_PT_GR25(%r1), %r25
 	LDREG   TASK_PT_GR24(%r1), %r24
@@ -342,6 +343,7 @@ tracesys_next:
 	stw     %r21, -56(%r30)                 /* 6th argument */
 #endif
 
+	cmpib,COND(=),n -1,%r20,tracesys_exit /* seccomp may have returned -1 */
 	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
 	b,n	.Ltracesys_nosys
 
--
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Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] selftests/thuge-gen: Use platform specific MAP_HUGETLB value
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Do not hardcode MAP_HUGETLB to 0x40000, since quite some architectures
use a different value.

Tested with a parisc architecture 64bit kernel.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/tools/testing/selftests/vm/thuge-gen.c b/tools/testing/selftests/vm/thuge-gen.c
index c879572..0bc737a 100644
--- a/tools/testing/selftests/vm/thuge-gen.c
+++ b/tools/testing/selftests/vm/thuge-gen.c
@@ -30,7 +30,9 @@
 #define MAP_HUGE_1GB    (30 << MAP_HUGE_SHIFT)
 #define MAP_HUGE_SHIFT  26
 #define MAP_HUGE_MASK   0x3f
+#if !defined(MAP_HUGETLB)
 #define MAP_HUGETLB	0x40000
+#endif
 
 #define SHM_HUGETLB     04000   /* segment will use huge TLB pages */
 #define SHM_HUGE_SHIFT  26
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From - Thu Nov 08 21:38:38 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc fixes for v4.6 rc2
Date: Thu, 31 Mar 2016 14:49:44 +0200
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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Hi Linus,

please pull two fixes for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.6-2

Fix seccomp filter support and SIGSYS signals on compat kernel. Both patches
are tagged for v4.5 stable kernel. 

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (2):
      parisc: Fix SIGSYS signals in compat case
      parisc: Fix and enable seccomp filter support

 arch/parisc/Kconfig               |  1 +
 arch/parisc/include/asm/compat.h  |  7 +++++++
 arch/parisc/include/asm/syscall.h | 13 +++++++++++++
 arch/parisc/kernel/ptrace.c       |  9 +++++++--
 arch/parisc/kernel/signal32.c     |  5 +++++
 arch/parisc/kernel/syscall.S      |  2 ++
 6 files changed, 35 insertions(+), 2 deletions(-)
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From: Simone Mannori <simone.mannori@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Kernel Panic on 4 cores hp c8000
Date: Thu, 31 Mar 2016 19:00:44 +0200
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Dear All,

I have an HP c8000 with two CPUs (PA-8800, 1GHz four cores) perfectly
working with HP-UX v11: all the hardware is correcly detected and
configured.

I have installed Debian 8.0 "unstable" on a 160G PATA/IDE and on 72G
SCSI disks. Installation looks good, BUT at boot time I have a kernel
panic message (please see below for the details). The behaviour is
deterministic. I'm bootin only with one HD and empty DVD drive.

If you think useful I can post the complete list of boot messages (I'm
working using serial console terminal using Serial_A port).

For the sake of completness, the very same kernel panic arrives using
keyboard and monitor attached to the video card.

The c8000 was perfectly OK with both UP-UX and Linux before the CPU
(from 1 to two PA-8800) upgrade.

Thanks in adavance for your help. In the meanwhile I'm going to
step-back to Debian 5. I will keep up updated.

  Simone Mannori - Italy

//**------------------------------


[   44.548000] sr04-07  0000000000000000 0000000000000000 0000000000000000 00000
00000000000
[   44.548000]
[   44.548000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401f7944 00
000000401f7948
[   44.548000]  IIR: 0ca010dc    ISR: 0000000000000000  IOR: 0000000000000000
[   44.548000]  CPU:        0   CR30: 000000007f87c000 CR31: fffffff0f0e034e0
[   44.548000]  ORIG_R28: 00000000ffff068a
[   44.548000]  IAOQ[0]: handle_irq_event_percpu+0x8c/0x250
[   44.548000]  IAOQ[1]: handle_irq_event_percpu+0x90/0x250
[   44.548000]  RP(r2): handle_percpu_irq+0xac/0xe8
[   44.548000] Backtrace:
[   44.548000]  [<00000000401fcab4>] handle_percpu_irq+0xac/0xe8
[   44.548000]  [<00000000401f6bbc>] generic_handle_irq+0x4c/0x68
[   44.548000]  [<00000000401612a4>] call_on_stack+0x18/0x24
[   44.548000]
<Cpu0> 0300109100e00000  0000000000000000  CC_PROCS_ENTRY_OUT
[   44.548000] Kernel panic - not syncing: Bad Address (null pointer deref?)
<Cpu0> 78000c6200e00000  a0e008c01100b009  CC_PAT_ENCODED_FIELD_WARNING
<Cpu0> 76000c6800e00000  0000000000000520  CC_PAT_DATA_FIELD_WARNING
<Cpu0> 0300109100e00000  0000000000000000  CC_PROCS_ENTRY_OUT
[   44.548000] ---[ end Kernel panic - not syncing: Bad Address (null pointer de
ref?)
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From - Thu Nov 08 21:38:38 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Kernel Panic on 4 cores hp c8000
Date: Thu, 31 Mar 2016 19:19:44 +0200
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Hi Simone,

On 31.03.2016 19:00, Simone Mannori wrote:
> I have an HP c8000 with two CPUs (PA-8800, 1GHz four cores) perfectly
> working with HP-UX v11: all the hardware is correcly detected and
> configured.
> 
> I have installed Debian 8.0 "unstable" on a 160G PATA/IDE and on 72G
> SCSI disks. Installation looks good, BUT at boot time I have a kernel
> panic message (please see below for the details). The behaviour is
> deterministic. I'm bootin only with one HD and empty DVD drive.
> 
> If you think useful I can post the complete list of boot messages (I'm
> working using serial console terminal using Serial_A port).
> 
> For the sake of completness, the very same kernel panic arrives using
> keyboard and monitor attached to the video card.
> 
> The c8000 was perfectly OK with both UP-UX and Linux before the CPU
> (from 1 to two PA-8800) upgrade.
> 
> Thanks in adavance for your help. In the meanwhile I'm going to
> step-back to Debian 5. I will keep up updated.

I think Debian 5 will not even install on the C8000..

But you didn't gave any information which kernel version you are using ?

This kernel should be pretty stable on the C8000:
http://backup.parisc-linux.org/kernel/linux-image-4.2.0-1-parisc64-smp_4.2.6-3+b3_hppa.deb

Helge
 
>   Simone Mannori - Italy
> 
> //**------------------------------
> 
> 
> [   44.548000] sr04-07  0000000000000000 0000000000000000 0000000000000000 00000
> 00000000000
> [   44.548000]
> [   44.548000] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401f7944 00
> 000000401f7948
> [   44.548000]  IIR: 0ca010dc    ISR: 0000000000000000  IOR: 0000000000000000
> [   44.548000]  CPU:        0   CR30: 000000007f87c000 CR31: fffffff0f0e034e0
> [   44.548000]  ORIG_R28: 00000000ffff068a
> [   44.548000]  IAOQ[0]: handle_irq_event_percpu+0x8c/0x250
> [   44.548000]  IAOQ[1]: handle_irq_event_percpu+0x90/0x250
> [   44.548000]  RP(r2): handle_percpu_irq+0xac/0xe8
> [   44.548000] Backtrace:
> [   44.548000]  [<00000000401fcab4>] handle_percpu_irq+0xac/0xe8
> [   44.548000]  [<00000000401f6bbc>] generic_handle_irq+0x4c/0x68
> [   44.548000]  [<00000000401612a4>] call_on_stack+0x18/0x24
> [   44.548000]
> <Cpu0> 0300109100e00000  0000000000000000  CC_PROCS_ENTRY_OUT
> [   44.548000] Kernel panic - not syncing: Bad Address (null pointer deref?)
> <Cpu0> 78000c6200e00000  a0e008c01100b009  CC_PAT_ENCODED_FIELD_WARNING
> <Cpu0> 76000c6800e00000  0000000000000520  CC_PAT_DATA_FIELD_WARNING
> <Cpu0> 0300109100e00000  0000000000000000  CC_PROCS_ENTRY_OUT
> [   44.548000] ---[ end Kernel panic - not syncing: Bad Address (null pointer de
> ref?)

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Content-Type: text/plain; charset=UTF-8

> I think Debian 5 will not even install on the C8000..
>

Correct: the boot DVD hang after a while.

> But you didn't gave any information which kernel version you are using ?
>
> This kernel should be pretty stable on the C8000:
> http://backup.parisc-linux.org/kernel/linux-image-4.2.0-1-parisc64-smp_4.2.6-3+b3_hppa.deb
>

The Debian 8.0 ( "debian-8.0-hppa-CD-1.iso") has configured this kernel:

Linux version 3.16.0-4-parisc64-smp (debian-kernel@lists.debian.org)
(gcc version 4.8.4 (GCC) ) #1 SMP Debian 3.16.7-ckt4-3 (2015-02-03)

I'm attaching the full set of booting message.

Probably you have a more recent kernel because AFTER the installation
you have updated the full distro with more recent packages.
Unfortunately, with this configuration, I can't boot.
I would like to avoid the de-installation of the second processor.

Thanks in advance for your help.

  Simone Mannori - Italy

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From: Simone Mannori <simone.mannori@gmail.com>
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Subject: Re: Kernel Panic on 4 cores hp c8000
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>From the boot messages looks like a bug in the "autofs4" module:

[   28.916000] systemd[1]: Inserted module 'autofs4'
[   28.988000] systemd[1]: Set hostname to <blsw>.
[   29.064000] systemd[1]: /etc/mtab is not a symlink or not pointing
to /proc/self/mounts. This is not supported anymore. Please make sure
to replace this file by a symlink to avoid incorrect or misleading
mount(8) output.
[   32.132000] Backtrace:
[   32.132000]  [<00000000401fcab4>] handle_percpu_irq+0xac/0xe8
[   32.132000]  [<00000000401f6bbc>] generic_handle_irq+0x4c/0x68
[   32.132000]  [<00000000401612a4>] call_on_stack+0x18/0x24
[   32.132000]  [<000000004017370c>] execute_on_irq_stack+0x5c/0xa8
[   32.132000]  [<000000004015fe5c>] _switch_to_ret+0xd9c/0xf40
[   32.132000]  [<00000000401604f4>] intr_save+0x18/0x11c
[   32.132000]  [<0000000040160820>] dtlb_miss_20w+0xc8/0x108
[   32.132000]  [<0000000040160568>] intr_save+0x8c/0x11c
[   32.132000]  [<000000004015fee8>] _switch_to_ret+0xe28/0xf40
[   32.132000]  [<000000004015e9a4>] end_linux_gateway_page+0x9a4/0x1000
[   32.132000]  [<000000004015de60>] cas2_end+0x85c/0x9fc
[   32.132000]  [<00000000401604a4>] intr_extint+0x20c/0x244
[   32.132000]  [<000000004015dbe8>] cas2_end+0x5e4/0x9fc
[   32.132000]  [<000000004015dd50>] cas2_end+0x74c/0x9fc
[   32.132000]  [<00000000405a8ea4>] __sk_run_filter+0x156c/0x1738
[   32.132000]
[   32.132000]
[   32.132000] Bad Address (null pointer deref?): Code=26
regs=0000000041f7a340 (Addr=0000000000000000)
[   32.132000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted
3.16.0-4-parisc64-smp #1 Debian 3.16.7-ckt4-3
[   32.132000] task: 0000000040984e18 ti: 00000000408c8000 task.ti:
00000000408c8000
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From - Thu Nov 08 21:38:38 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Kernel Panic on 4 cores hp c8000
Date: Thu, 31 Mar 2016 20:01:32 +0200
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On 31.03.2016 19:44, Simone Mannori wrote:
>> I think Debian 5 will not even install on the C8000..
> 
> Correct: the boot DVD hang after a while.
> 
>> But you didn't gave any information which kernel version you are using ?
>>
>> This kernel should be pretty stable on the C8000:
>> http://backup.parisc-linux.org/kernel/linux-image-4.2.0-1-parisc64-smp_4.2.6-3+b3_hppa.deb
> 
> The Debian 8.0 ( "debian-8.0-hppa-CD-1.iso") has configured this kernel:
> 
> Linux version 3.16.0-4-parisc64-smp (debian-kernel@lists.debian.org)
> (gcc version 4.8.4 (GCC) ) #1 SMP Debian 3.16.7-ckt4-3 (2015-02-03)

The 3.16 kernel is far too old.
It doesn't even makes sense to debug this kernel any longer, which is why
I said you should update to latest debian unstable (and it's written in the
installation wiki as well).
You have to keep in mind, that the parisc linux port was really nearly stopped
when I built this install CD. Since then we have fixed an uncountable number of
bugs.
So, please update all packages including kernel, glibc and so on.
If you face problems then, please let us know.
 
> I'm attaching the full set of booting message.
> 
> Probably you have a more recent kernel because AFTER the installation
> you have updated the full distro with more recent packages.
> Unfortunately, with this configuration, I can't boot.
> I would like to avoid the de-installation of the second processor.

You could try to boot with the "nosmp" kernel option (add it at the IPL prompt).
Probably "autofs=off" (not sure if this is the syntax) could work as well (if you think it's the autofs module).

If you have booted up, update kernel and packages.

Helge
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From: Simone Mannori <simone.mannori@gmail.com>
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Subject: Re: Kernel Panic on 4 cores hp c8000
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Partial success :-)

Using IPL, I have added "nosmp" option in the kenel command line.
Now the boot finish correctly and reach the command line prompt :-).

I'm updating following the wiki instruction ....

Thanks a lot for the help ...

    Simone Mannori - Italy


On 31 March 2016 at 20:01, Helge Deller <deller@gmx.de> wrote:
> On 31.03.2016 19:44, Simone Mannori wrote:
>>> I think Debian 5 will not even install on the C8000..
>>
>> Correct: the boot DVD hang after a while.
>>
>>> But you didn't gave any information which kernel version you are using ?
>>>
>>> This kernel should be pretty stable on the C8000:
>>> http://backup.parisc-linux.org/kernel/linux-image-4.2.0-1-parisc64-smp_4.2.6-3+b3_hppa.deb
>>
>> The Debian 8.0 ( "debian-8.0-hppa-CD-1.iso") has configured this kernel:
>>
>> Linux version 3.16.0-4-parisc64-smp (debian-kernel@lists.debian.org)
>> (gcc version 4.8.4 (GCC) ) #1 SMP Debian 3.16.7-ckt4-3 (2015-02-03)
>
> The 3.16 kernel is far too old.
> It doesn't even makes sense to debug this kernel any longer, which is why
> I said you should update to latest debian unstable (and it's written in the
> installation wiki as well).
> You have to keep in mind, that the parisc linux port was really nearly stopped
> when I built this install CD. Since then we have fixed an uncountable number of
> bugs.
> So, please update all packages including kernel, glibc and so on.
> If you face problems then, please let us know.
>
>> I'm attaching the full set of booting message.
>>
>> Probably you have a more recent kernel because AFTER the installation
>> you have updated the full distro with more recent packages.
>> Unfortunately, with this configuration, I can't boot.
>> I would like to avoid the de-installation of the second processor.
>
> You could try to boot with the "nosmp" kernel option (add it at the IPL prompt).
> Probably "autofs=off" (not sure if this is the syntax) could work as well (if you think it's the autofs module).
>
> If you have booted up, update kernel and packages.
>
> Helge
--
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Success: successfull update and boot with new kernel (please see below
for the details)

Respect the instruction presents on:

https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation

I have only few observations:

- the "/etc/apt/sources.list" must contains ONLY one repository
reference, yours:

    deb http://ftp.debian-ports.org/debian unstable main

- after the "apt-get install debian-ports-archive-keyring" and the
"apt-get update" I was obliged to run

- "apt-get dist-upgrade" because the simple "apt-get upgrade" was not
sufficient.

For the newbie: login as normal user, then switch to "root" using the
"su" command.

Thanks a lot for your very helpful support. I will start to put the
details of this voyage on a wiki page as soon as possible (ASAP).

  Simone Mannori - Italy

//**---------------------------------------------------------------------------------------------------------

NEW KERNEL
simone@blsw:~$ uname -a
Linux blsw 4.4.0-1-parisc64-smp #1 SMP Debian 4.4.6-1 (2016-03-17) parisc64 GNU/
Linux

FOUR CORES ACTIVE
simone@blsw:~$ cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 2.0
cpu             : PA8800 (Mako)
cpu MHz         : 1000.000000
capabilities    : os64 iopdir_fdc needs_equivalent_aliasing (0x35)
model           : 9000/785/C8000
model name      : Crestone Peak Fast?
hversion        : 0x000088b0
sversion        : 0x00000491
I-cache         : 32768 KB
D-cache         : 32768 KB (WB, direct mapped)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
bogomips        : 1988.60
software id     : 6267540911694045181

processor       : 1
cpu family      : PA-RISC 2.0
cpu             : PA8800 (Mako)
cpu MHz         : 1000.000000
capabilities    : os64 iopdir_fdc needs_equivalent_aliasing (0x35)
model           : 9000/785/C8000
model name      : Crestone Peak Fast?
hversion        : 0x000088b0
sversion        : 0x00000491
I-cache         : 32768 KB
D-cache         : 32768 KB (WB, direct mapped)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
bogomips        : 1988.60
software id     : 6267540911694045181

processor       : 2
cpu family      : PA-RISC 2.0
cpu             : PA8800 (Mako)
cpu MHz         : 1000.000000
capabilities    : os64 iopdir_fdc needs_equivalent_aliasing (0x35)
model           : 9000/785/C8000
model name      : Crestone Peak Fast?
hversion        : 0x000088b0
sversion        : 0x00000491
I-cache         : 32768 KB
D-cache         : 32768 KB (WB, direct mapped)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
bogomips        : 1988.60
software id     : 6267540911694045181

processor       : 3
cpu family      : PA-RISC 2.0
cpu             : PA8800 (Mako)
cpu MHz         : 1000.000000
capabilities    : os64 iopdir_fdc needs_equivalent_aliasing (0x35)
model           : 9000/785/C8000
model name      : Crestone Peak Fast?
hversion        : 0x000088b0
sversion        : 0x00000491
I-cache         : 32768 KB
D-cache         : 32768 KB (WB, direct mapped)
ITLB entries    : 240
DTLB entries    : 240 - shared with ITLB
bogomips        : 1988.60
software id     : 6267540911694045181

simone@blsw:~$
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From - Thu Nov 08 21:38:38 2018
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From: Simone Mannori <simone.mannori@gmail.com>
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Subject: Kernel hangs with ATI video cards
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Hi everyone,

after a complete "dist-update" I have successfully booted with a full
working SMP kernel:

simone@blsw:~$ uname -a
Linux blsw 4.4.0-1-parisc64-smp #1 SMP Debian 4.4.6-1 (2016-03-17)
parisc64 GNU/Linux

Switching to "graph3" console, the kernel hangs when it tried to
initialize the video card firmware. It said: r300 firmware not
available.

The very same issue happens with two ATI video cards: a Fire GL T2 and
a FireGL X3.

Now I have installed an old AGP NVIDIA; "lspci" produces
=2E...
80:00.0 VGA compatible controller: NVIDIA Corporation NV11GL [Quadro2
MXR/EX/Go] (rev a1)
=2E...

With this NVIA, everythings run fine: boot OK, MATE desktop perfect,
monitor automatically configured, etc.

During the first installation from serial terminal, after the
automatic hardware detection, the installation program asked for the
firmware of R300 video card (not embedded in the ditstro because
proprietary software). I have aswered "NO" becasue I don=C3=ACt have th=
is
sofware.
Usually, this binary blob should be included in the Linux kernel; or I
have missed something ?

Thanks in advance for your help.

Simone Mannori - Italy
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From: Graham Gower <graham.gower@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Kernel hangs with ATI video cards
Date: Fri, 1 Apr 2016 22:27:27 +1030
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You need to install the firmware-linux-nonfree package. I think I just
downloaded it manually, because the package was not installable from
the hppa repo directly. But you're on a wild goose chase here. There
is no support for graphics acceleration on hppa64. Search the
archives.

I've played with both ATI and NVIDIA cards, both drivers fail during
firmware initialisation. The problem is not yet known, and from the
archives it appears several competent individuals have tinkered and
given up.

-G

On 1 April 2016 at 19:58, Simone Mannori <simone.mannori@gmail.com> wro=
te:
> Hi everyone,
>
> after a complete "dist-update" I have successfully booted with a full
> working SMP kernel:
>
> simone@blsw:~$ uname -a
> Linux blsw 4.4.0-1-parisc64-smp #1 SMP Debian 4.4.6-1 (2016-03-17)
> parisc64 GNU/Linux
>
> Switching to "graph3" console, the kernel hangs when it tried to
> initialize the video card firmware. It said: r300 firmware not
> available.
>
> The very same issue happens with two ATI video cards: a Fire GL T2 an=
d
> a FireGL X3.
>
> Now I have installed an old AGP NVIDIA; "lspci" produces
> ....
> 80:00.0 VGA compatible controller: NVIDIA Corporation NV11GL [Quadro2
> MXR/EX/Go] (rev a1)
> ....
>
> With this NVIA, everythings run fine: boot OK, MATE desktop perfect,
> monitor automatically configured, etc.
>
> During the first installation from serial terminal, after the
> automatic hardware detection, the installation program asked for the
> firmware of R300 video card (not embedded in the ditstro because
> proprietary software). I have aswered "NO" becasue I don=C3=ACt have =
this
> sofware.
> Usually, this binary blob should be included in the Linux kernel; or =
I
> have missed something ?
>
> Thanks in advance for your help.
>
> Simone Mannori - Italy
> --
> To unsubscribe from this list: send the line "unsubscribe linux-paris=
c" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
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From: Simone Mannori <simone.mannori@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Kernel hangs with ATI video cards
Date: Fri, 1 Apr 2016 15:11:43 +0200
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Success!

As you have suggested, I have manually downloaded the package

--> firmware-linux-nonfree_0.36+wheezy.1_all.deb

from here:

https://packages.debian.org/wheezy/all/firmware-linux-nonfree/download

then I have installed it (as root) with "dpkg -i
firmware-linux-nonfree_0.36+wheezy.1_all.deb"

During the installation of the deb package, the initramdisk of the
kernel has been automatically updated with the proprietary firmware.

As you have correctly point out, both the previously working NVIDIA
QUADRO MXR 32M and the actual FileG2 T2

VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
RV350 GL [FireGL T2] (rev 80)

have DRI/OpenGL support in software (no hardware acceleration):

OpenGL vendor string: Mesa Project
OpenGL renderer string: Software Rasterizer
OpenGL version string: 2.1 Mesa 11.1.2
OpenGL shading language version string: 1.20

This is _very_strange because both "nouveau" and "radeon" should
support OpenGL / DRI in hardware ! Apparently, they run OK (X11 is OK)
but they switch to software rendering.

Question: inside X11 drivers, video card register setting is done
directly OR via VGA BIOS? In the second case, video card BIOS contains
x86 code that cannot be executed by pa risc processors (this is the
reason because the c8000 BIOS include an x86 emulator to set-up the
video card as console). This is a possible clue to find the source of
this issue.

Anyway, just a loose cannon like me can chase a wilde goose :-).

  Simone Mannori - Italy




On 01/04/2016, Graham Gower <graham.gower@gmail.com> wrote:
> You need to install the firmware-linux-nonfree package. I think I jus=
t
> downloaded it manually, because the package was not installable from
> the hppa repo directly. But you're on a wild goose chase here. There
> is no support for graphics acceleration on hppa64. Search the
> archives.
>
> I've played with both ATI and NVIDIA cards, both drivers fail during
> firmware initialisation. The problem is not yet known, and from the
> archives it appears several competent individuals have tinkered and
> given up.
>
> -G
>
> On 1 April 2016 at 19:58, Simone Mannori <simone.mannori@gmail.com> w=
rote:
>> Hi everyone,
>>
>> after a complete "dist-update" I have successfully booted with a ful=
l
>> working SMP kernel:
>>
>> simone@blsw:~$ uname -a
>> Linux blsw 4.4.0-1-parisc64-smp #1 SMP Debian 4.4.6-1 (2016-03-17)
>> parisc64 GNU/Linux
>>
>> Switching to "graph3" console, the kernel hangs when it tried to
>> initialize the video card firmware. It said: r300 firmware not
>> available.
>>
>> The very same issue happens with two ATI video cards: a Fire GL T2 a=
nd
>> a FireGL X3.
>>
>> Now I have installed an old AGP NVIDIA; "lspci" produces
>> ....
>> 80:00.0 VGA compatible controller: NVIDIA Corporation NV11GL [Quadro=
2
>> MXR/EX/Go] (rev a1)
>> ....
>>
>> With this NVIA, everythings run fine: boot OK, MATE desktop perfect,
>> monitor automatically configured, etc.
>>
>> During the first installation from serial terminal, after the
>> automatic hardware detection, the installation program asked for the
>> firmware of R300 video card (not embedded in the ditstro because
>> proprietary software). I have aswered "NO" becasue I don=C3=ACt have=
 this
>> sofware.
>> Usually, this binary blob should be included in the Linux kernel; or=
 I
>> have missed something ?
>>
>> Thanks in advance for your help.
>>
>> Simone Mannori - Italy
>> --
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On 01.04.2016 15:11, Simone Mannori wrote:
> Success!
> 
> As you have suggested, I have manually downloaded the package
> 
> --> firmware-linux-nonfree_0.36+wheezy.1_all.deb
> 
> from here:
> 
> https://packages.debian.org/wheezy/all/firmware-linux-nonfree/download
> 
> then I have installed it (as root) with "dpkg -i
> firmware-linux-nonfree_0.36+wheezy.1_all.deb"
> 
> During the installation of the deb package, the initramdisk of the
> kernel has been automatically updated with the proprietary firmware.
> 
> As you have correctly point out, both the previously working NVIDIA
> QUADRO MXR 32M and the actual FileG2 T2
> 
> VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
> RV350 GL [FireGL T2] (rev 80)
> 
> have DRI/OpenGL support in software (no hardware acceleration):
> 
> OpenGL vendor string: Mesa Project
> OpenGL renderer string: Software Rasterizer
> OpenGL version string: 2.1 Mesa 11.1.2
> OpenGL shading language version string: 1.20

That was more or less expected.
 
> This is _very_strange because both "nouveau" and "radeon" should
> support OpenGL / DRI in hardware ! Apparently, they run OK (X11 is OK)
> but they switch to software rendering.

Yes, they should work accelerated.
 
> Question: inside X11 drivers, video card register setting is done
> directly OR via VGA BIOS? In the second case, video card BIOS contains
> x86 code that cannot be executed by pa risc processors (this is the
> reason because the c8000 BIOS include an x86 emulator to set-up the
> video card as console). This is a possible clue to find the source of
> this issue.

Right. The problem is probably that the emulated BIOS does not fully
initializes the card how the Linux kernel driver expects it.
Or, maybe we don't initialize the C8000 chipset correctly so that it
can not handle the ATI card as expected. 

This is the part of the syslog regarding the ATI card on my C8000:

[   32.668000] [drm] radeon kernel modesetting enabled.
[   32.760000] radeon 0000:80:00.0: enabling SERR and PARITY (0187 -> 01c7)
[   32.864000] [drm] initializing kernel modesetting (R300 0x1002:0x4E47 0x1002:0x0152).
[   32.968000] [drm] register mmio base: 0xD0030000
[   33.024000] [drm] register mmio size: 65536
[   33.148000] radeon 0000:80:00.0: putting AGP V3 device into 8x mode
[   33.224000] radeon 0000:80:00.0: GTT: 512M 0x60000000 - 0x7FFFFFFF
[   33.300000] [drm] Generation 1 PCI interface in multifunction mode
[   33.372000] [drm] Limiting VRAM to one aperture
[   33.428000] radeon 0000:80:00.0: VRAM: 256M 0xFFFFFFFFC8000000 - 0xFFFFFFFFD7FFFFFF (256M used)
[   33.532000] [drm] Detected VRAM RAM=256M, BAR=128M
[   33.588000] [drm] RAM width 256bits DDR
[   33.636000] [TTM] Zone  kernel: Available graphics memory: 4107304 kiB
[   33.716000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
[   33.792000] [TTM] Initializing pool allocator
[   33.844000] [drm] radeon: 256M of VRAM memory ready
[   33.904000] [drm] radeon: 512M of GTT memory ready.
[   33.968000] [drm] radeon: 2 quad pipes, 1 Z pipes initialized.
[   34.052000] radeon 0000:80:00.0: WB disabled
[   34.104000] radeon 0000:80:00.0: fence driver on ring 0 use gpu addr 0x0000000060000000 and cpu addr 0x0000000011302000
[   34.232000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   34.312000] [drm] Driver supports precise vblank timestamp query.
[   34.384000] [drm] radeon: irq initialized.
[   34.436000] [drm] Loading R300 Microcode
[   34.936000] radeon 0000:80:00.0: firmware: direct-loading firmware radeon/R300_cp.bin
[   35.044000] [drm] radeon: ring at 0x0000000060001000
[   35.296000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test failed (scratch(0x15E4)=0xCAFEDEAD)
[   35.412000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't working (-22).

^^^ HERE is the problem.
We don't know why the ring test fails.
Debugging it is difficult if you don't are an expert on Radeon cards and C8000 chipsets.
If it would succeed, then I assume we would get accelerated graphics/3D.

[   35.500000] radeon 0000:80:00.0: failed initializing CP (-22).
[   35.568000] radeon 0000:80:00.0: Disabling GPU acceleration

^^^
Again, the kernel says it disables acceleration.

[   35.824000] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle timeout, shutting down CP.
[   35.936000] [drm] radeon: cp finalized
[   35.996000] [drm] radeon: cp finalized
[   36.040000] [TTM] Finalizing pool allocator
[   36.092000] [TTM] Zone  kernel: Used memory at exit: 0 kiB
[   36.156000] [TTM] Zone   dma32: Used memory at exit: 0 kiB
[   36.224000] [drm] radeon: ttm finalized
[   36.268000] [drm] Forcing AGP to PCI mode
[   36.376000] [drm] Generation 1 PCI interface in multifunction mode
[   36.452000] [drm] Limiting VRAM to one aperture
[   36.508000] radeon 0000:80:00.0: VRAM: 256M 0xFFFFFFFFC8000000 - 0xFFFFFFFFD7FFFFFF (256M used)
[   36.612000] radeon 0000:80:00.0: GTT: 512M 0xFFFFFFFFA8000000 - 0xFFFFFFFFC7FFFFFF
[   36.700000] [drm] Detected VRAM RAM=256M, BAR=128M
[   36.760000] [drm] RAM width 256bits DDR
[   36.804000] [TTM] Zone  kernel: Available graphics memory: 4107304 kiB
[   36.884000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
[   36.960000] [TTM] Initializing pool allocator
[   37.016000] [drm] radeon: 256M of VRAM memory ready
[   37.072000] [drm] radeon: 512M of GTT memory ready.
[   37.132000] [drm] GART: num cpu pages 131072, num gpu pages 131072
[   37.236000] [drm] radeon: 2 quad pipes, 1 Z pipes initialized.
[   37.304000] [drm] PCI GART of 512M enabled (table at 0x0000000042440000).
[   37.388000] radeon 0000:80:00.0: WB enabled
[   37.436000] radeon 0000:80:00.0: fence driver on ring 0 use gpu addr 0xffffffffa8000000 and cpu addr 0x000000007dc21000
[   37.564000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   37.644000] [drm] Driver supports precise vblank timestamp query.
[   37.720000] [drm] radeon: irq initialized.
[   37.792000] [drm] radeon: ring at 0xFFFFFFFFA8001000
[   38.048000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test failed (scratch(0x15E4)=0xCAFEDEAD)
[   38.164000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't working (-22).
[   38.252000] radeon 0000:80:00.0: failed initializing CP (-22).
[   38.320000] radeon 0000:80:00.0: Disabling GPU acceleration
[   38.580000] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle timeout, shutting down CP.
[   38.708000] [drm] radeon: cp finalized
[   38.784000] [drm] No TV DAC info found in BIOS
[   38.836000] [drm] Radeon Display Connectors
[   38.888000] [drm] Connector 0:
[   38.924000] [drm]   DVI-I-1
[   38.956000] [drm]   HPD1
[   38.988000] [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
[   39.060000] [drm]   Encoders:
[   39.096000] [drm]     CRT1: INTERNAL_DAC1
[   39.144000] [drm]     DFP1: INTERNAL_TMDS1
[   39.192000] [drm] Connector 1:
[   39.228000] [drm]   DVI-I-2
[   39.260000] [drm]   HPD2
[   39.292000] [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
[   39.364000] [drm]   Encoders:
[   39.400000] [drm]     CRT2: INTERNAL_DAC2
[   39.448000] [drm]     DFP2: INTERNAL_DVO1
[   39.508000] radeon 0000:80:00.0: No connectors reported connected with modes
[   39.596000] [drm] Cannot find any crtc or sizes - going 1024x768
[   39.832000] [drm] fb mappable at 0xFFFFFFFFC8040000
[   39.892000] [drm] vram apper at 0xFFFFFFFFC8000000
[   39.948000] [drm] size 3145728
[   39.984000] [drm] fb depth is 24
[   40.024000] [drm]    pitch is 4096
[   40.068000] Console: switching to colour frame buffer device 128x48
[   40.296000] radeon 0000:80:00.0: fb0: radeondrmfb frame buffer device
[   40.376000] [drm] Initialized radeon 2.43.0 20080528 for 0000:80:00.0 on minor 0

Helge
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On 2016-04-01, at 5:38 PM, Helge Deller wrote:

> On 01.04.2016 15:11, Simone Mannori wrote:
>> Success!
>> 
>> As you have suggested, I have manually downloaded the package
>> 
>> --> firmware-linux-nonfree_0.36+wheezy.1_all.deb
>> 
>> from here:
>> 
>> https://packages.debian.org/wheezy/all/firmware-linux-nonfree/download
>> 
>> then I have installed it (as root) with "dpkg -i
>> firmware-linux-nonfree_0.36+wheezy.1_all.deb"
> 

A year or so ago I compared the radeon firmware provided here with that used on hpux
and they were the same.

Dave
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Cc: "Simone Mannori" <simone.mannori@gmail.com>,
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On 2016-03-30, at 5:59 AM, Helge Deller wrote:

>> Now, I'm fighting with a very hardware issue: the screws of the PA
>> CPUs are non standard hex with a center pin. I hate this things.
>> Yesterday evening I was ready to upgrade from a single PA-8800/900 MHz
>> to a dual PA-8900/1GHz 
> 
> I'm not sure if this will simply work. I was looking at the idea myself
> once, and googling for that it seems that some firmware update needs to
> be done in order for the machine to accept the additional CPU.
> If you do it, please let us know...

I had to replace cpu in my rp3440.  I asked vendor if it would be possible to increase speed
from 800 MHz and they said no.  I think it's possible to add a second cpu but don't have any
personal experience.  The machine did run with one cpu module.

The screws are a pain...

Dave
--
John David Anglin	dave.anglin@bell.net



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In my - very limited, just one c8000 - experience, the CPU upgrade is
a successfull move: I have upgraded from one to two PA-8800:

-----------------------------------------------------------------------=
-------
   (c) Copyright 1995-2004, Hewlett-Packard Company, All rights reserve=
d
-----------------------------------------------------------------------=
-------

  Processor   Speed            State           CoProcessor        Cache=
 Size
  Number                                       State              Inst =
   Data
  ---------  --------   ---------------------  -----------------  -----=
-------
      0      1000 MHz   Active                 Functional         32 MB=
/32 MB
      1      1000 MHz   Idle                   Functional         32 MB=
/32 MB
      2      1000 MHz   Idle                   Functional         32 MB=
/32 MB
      3      1000 MHz   Idle                   Functional         32 MB=
/32 MB

The two CPUs MUST be of the same model, have the same clock frequency
AND have the same revision number. I strongly suspect that HP has
produced "equal" CPUs but with different revision number.

I had the very same issue restoring and upgrading a DELL 690, a dual
Xeon "Gro=C3=9Frechner " with 1100Watt power supply. The two Xeon must =
be
"matched" otherwise the BIOS refuse to start the booting process.

I have recently bough two PA-8800 on ebay and the supplier has sent to
me two different CPUs! Looking the integrated heat sink, there are two
models: the plain "clear alluminium" and the "satinated copper". My
c8000 was equipped with a single "satinated copper" CPU, so I chose
the identical one and, with the help of a very skilled technician
equiped with the right screwdrivers, I have successfully completed the
upgrade: everythings works perfectly with HP-UX v11 and Linux Debian
8.0 kernel :

Linux version 4.4.0-1-parisc64-smp (debian-kernel@lists.debian.org)
(gcc version 4.9.3 (GCC) ) #1 SMP Debian 4.4.6-1 (2016-03-17)

If you need, I can dump the CPUs revision numbers. With the help of
Helge, I'm putting the results of my jurney in the c8000 territory on
a dedicated wikipage: searching in the maling list messages can be
very frustrating, expecially for a newbie like me.

Now, I'm fighting with the video cards initializiation failure: I
strongly suspect that the problem is not inside the (kernel) video
driver module because both "nouveau" (NVIDIA) and "radeon" (ATI)
produce exactly the very same error message and switch back to
"passive" frame buffer mode.

 Simone Mannori - Italy


On 2 April 2016 at 23:48, John David Anglin <dave.anglin@bell.net> wrot=
e:
> On 2016-03-30, at 5:59 AM, Helge Deller wrote:
>
>>> Now, I'm fighting with a very hardware issue: the screws of the PA
>>> CPUs are non standard hex with a center pin. I hate this things.
>>> Yesterday evening I was ready to upgrade from a single PA-8800/900 =
MHz
>>> to a dual PA-8900/1GHz
>>
>> I'm not sure if this will simply work. I was looking at the idea mys=
elf
>> once, and googling for that it seems that some firmware update needs=
 to
>> be done in order for the machine to accept the additional CPU.
>> If you do it, please let us know...
>
> I had to replace cpu in my rp3440.  I asked vendor if it would be pos=
sible to increase speed
> from 800 MHz and they said no.  I think it's possible to add a second=
 cpu but don't have any
> personal experience.  The machine did run with one cpu module.
>
> The screws are a pain...
>
> Dave
> --
> John David Anglin       dave.anglin@bell.net
>
>
>
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Dear All,

following you suggestions, now I have an - almost - perfectly working
hp c8000 workstation.

Mission accomplished? Not exactly: despite a lot of efforts, the video
card section is still not fully operative. Let me resume the
situation.

I'm using a c8000 with two PA-8800 and Debian 8.0, kernel:

Linux version 4.4.0-1-parisc64-smp (debian-kernel@lists.debian.org)
(gcc version 4.9.3 (GCC) ) #1 SMP Debian 4.4.6-1 (2016-03-17)

I have two very different AGP video cards (ATI FireGL T2 and NVIDIA
QUADRO MXR) that have the same issue, despite the two complety
different drivers ("radeon" and "nouveau"). The full logs are in
bottom of this post. Just to make a long history short:

ATI FIRE GL T2 ("radeon")
[   47.836000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
failed (scratch(0x15E4)=0xCAFEDEAD)
[   47.948000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
working (-22).
[   48.036000] radeon 0000:80:00.0: failed initializing CP (-22).
[   48.036000] radeon 0000:80:00.0: Disabling GPU acceleration

NVIDIA QUADRO MXR ("nouveau")
[   54.388000] nouveau 0000:80:00.0: DRM: GPU lockup - switching to
software fbcon
[   54.684000] nouveau 0000:80:00.0: fb0: nouveaufb frame buffer device
[   54.784000] [drm] Initialized nouveau 1.3.1 20120801 for
0000:80:00.0 on minor 0

Looking inside the posts on many developers mailing lists, I see that
most of the efforts have been focused on the video device drivers init
code. I have tried to force the video drivers using the "modeset"
parameter without success. I have tried also to boot without video
driver, then load it manually using "modprobe". No way: the results
are the same.

"lsmod" tell me that "radeon"/"nouveau" are used by the "ttm" module
and they cannot be removed (despite the "- r --force" modprobe
parameters).

Let suppose for a moment that the issue is NOT inside the video driver
but in the "ttm" module: something is not fully correct in the
initialization of the ZX1 chipset, therefore the video driver code go
crazy because cannot match the video card with the chipset.

The only way that I know to investigate this issue is to recompile the
kernel with debug support and execute "single step"/breakpoint the
code that initialize the video card and the chipset near the zone of
the error message.

Question: "What are the deb packages that I need to install to
recompile the  4.4.0-1-parisc64-smp kernel (or another kernel version
suitable for this investigation) ?

Thanks in advance for you help

   Simone Mannori - Italy

//**-----------------------------------------------------------------------------------------------------------------

ATI FIRE GL T2
[   45.460000] [drm] radeon kernel modesetting enabled.
[   45.576000] radeon 0000:80:00.0: enabling SERR and PARITY (0107 -> 0147)
[   45.660000] [drm] initializing kernel modesetting (RV350
0x1002:0x4154 0x1002:0x0002).
[   45.812000] [drm] register mmio base: 0xC8020000
[   45.868000] [drm] register mmio size: 65536
[   46.084000] radeon 0000:80:00.0: putting AGP V3 device into 8x mode
[   46.160000] radeon 0000:80:00.0: GTT: 512M 0x60000000 - 0x7FFFFFFF
[   46.236000] [drm] Generation 2 PCI interface, using max accessible memory
[   46.316000] radeon 0000:80:00.0: VRAM: 128M 0xFFFFFFFFC0000000 -
0xFFFFFFFFC7FFFFFF (128M used)
[   46.420000] [drm] Detected VRAM RAM=128M, BAR=128M
[   46.476000] [drm] RAM width 128bits DDR
[   46.524000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
[   46.604000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
[   46.680000] [TTM] Initializing pool allocator
[   46.732000] [drm] radeon: 128M of VRAM memory ready
[   46.792000] [drm] radeon: 512M of GTT memory ready.
[   46.852000] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[   46.944000] radeon 0000:80:00.0: WB disabled
[   46.996000] radeon 0000:80:00.0: fence driver on ring 0 use gpu
addr 0x0000000060000000 and cpu addr 0x0000000011279000
[   47.124000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   47.204000] [drm] Driver supports precise vblank timestamp query.
[   47.276000] [drm] radeon: irq initialized.
[   47.328000] [drm] Loading R300 Microcode
[   47.468000] radeon 0000:80:00.0: firmware: direct-loading firmware
radeon/R300_cp.bin
[   47.584000] [drm] radeon: ring at 0x0000000060001000
[   47.836000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
failed (scratch(0x15E4)=0xCAFEDEAD)
[   47.948000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
working (-22).
[   48.036000] radeon 0000:80:00.0: failed initializing CP (-22).
[   48.036000] radeon 0000:80:00.0: Disabling GPU acceleration
[  OK  ] Found device ST373207LW 2.
[   48.236000] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle
timeout, shutting down CP.
[   48.384000] [drm] radeon: cp finalized
[   48.448000] [drm] radeon: cp finalized
[   48.496000] [TTM] Finalizing pool allocator
[   48.544000] [TTM] Zone  kernel: Used memory at exit: 0 kiB
[   48.612000] [TTM] Zone   dma32: Used memory at exit: 0 kiB
[   48.676000] [drm] radeon: ttm finalized
[   48.724000] [drm] Forcing AGP to PCI mode
         Starting File System Check on /d[   48.872000] [drm]
Generation 2 PCI interface, using max accessible memory
ev/...2-638b-4a0[   48.968000] radeon 0000:80:00.0: VRAM: 128M
0xFFFFFFFFC0000000 - 0xFFFFFFFFC7FFFFFF (128M used)
c-be55-7444e126d[   49.088000] radeon 0000:80:00.0: GTT: 512M
0xFFFFFFFFA0000000 - 0xFFFFFFFFBFFFFFFF
283...
[   49.196000] [drm] Detected VRAM RAM=128M, BAR=128M
[   49.264000] [drm] RAM width 128bits DDR
[   49.328000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
[   49412000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
[   49.492000] [TTM] Initializing pool allocator
[   49.492000] [drm] radeon: 128M of VRAM memory ready
[   49.492000] [drm] radeon: 512M of GTT memory ready.
[   49.492000] [drm] GART: num cpu pages 131072, num gpu pages 131072
[   49.636000] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[   49.636000] [drm] PCI GART of 512M enabled (table at 0x0000000043300000).
[   49.636000] radeon 0000:80:00.0: WB enabled
[   49.636000] radeon 0000:80:00.0: fence driver on ring 0 use gpu
addr 0xffffffffa0000000 and cpu addr 0x000000007d239000
[   49.636000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   49.636000] [drm] Driver supports precise vblank timestamp query.
[   49.636000] [drm] radeon: irq initialized.
[   49.780000] [drm] radeon: ring at 0xFFFFFFFFA0001000
[   49.972000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
failed (scratch(0x15E4)=0xCAFEDEAD)
[   49.976000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
working (-22).
[   49.976000] radeon 0000:80:00.0: failed initializing CP (-22).
[   49.976000] radeon 0000:80:00.0: Disabling GPU acceleration
[   50.168000] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle
timeout, shutting down CP.
[   50.280000] [drm] radeon: cp finalized
[   50.592000] [drm] Radeon Display Connectors
[   50.592000] [drm] Connector 0:
[   50.592000] [drm]   VGA-1
[   50.592000] [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
[   50.592000] [drm]   Encoders:
[   50.592000] [drm]     CRT1: INTERNAL_DAC1
[   50.592000] [drm] Connector 1:
[   50.592000] [drm]   DVI-I-1
[   50.592000] [drm]   HPD1
[   50.592000] [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
[   50.592000] [drm]   Encoders:
[   50.592000] [drm]     CRT2: INTERNAL_DAC2
[   50.592000] [drm]     DFP1: INTERNAL_TMDS1
[   50.608000] radeon 0000:80:00.0: No connectors reported connected with modes
[   50.608000] [drm] Cannot find any crtc or sizes - going 1024x768
[   50.828000] [drm] fb mappable at 0xFFFFFFFFC0040000
[   50.828000] [drm] vram apper at 0xFFFFFFFFC0000000
[   50.828000] [drm] size 3145728
[   50.828000] [drm] fb depth is 24
[   50.828000] [drm]    pitch is 4096
[   51.848000] Console: switching to colour frame buffer device 128x48
[   52.080000] radeon 0000:80:00.0: fb0: radeondrmfb frame buffer device
[   52172000] [drm] Initialized radeon 2.43.0 20080528 for
0000:80:00.0 on minor 0

NVIDIA QUADRO MXR
[   51.880000] nouveau 0000:80:00.0: enabling SERR and PARITY (0007 -> 0147)
[   52.044000] nouveau 0000:80:00.0: NVIDIA NV11 (011300a1)
[   52.364000] nouveau 0000:80:00.0: bios: version 03.11.01.24.00
[   52.488000] nouveau 0000:80:00.0: putting AGP V2 device into 4x mode
[   52.592000] nouveau 0000:80:00.0: putting AGP V2 device into 4x mode
[   52.668000] nouveau 0000:80:00.0: tmr: unknown input clock freq
[   52.740000] nouveau 0000:80:00.0: fb: 32 MiB SDRAM
[   52.844000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
[   52.920000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
[   52.920000] [TTM] Initializing pool allocator
[   52.928000] nouveau 0000:80:00.0: DRM: VRAM: 31 MiB
[   52.928000] nouveau 0000:80:00.0: DRM: GART: 512 MiB
[   52.928000] nouveau 0000:80:00.0: DRM: BMP version 5.20
[   52.928000] nouveau 0000:80:00.0: DRM: No useful DCB data in VBIOS
[   52.928000] nouveau 0000:80:00.0: DRM: Adaptor not initialised,
running VBIOS init tables.
[   53.016000] nouveau 0000:80:00.0: DRM: Saving VGA fonts
[   53.336000] nouveau 0000:80:00.0: DRM: No useful DCB data in VBIOS
[   53.336000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   53.336000] [drm] Driver supports precise vblank timestamp query.
[   53.336000] nouveau 0000:80:00.0: DRM: 0xABA2: Parsing digital
output script table
[   53.920000] nouveau 0000:80:00.0: DRM: MM: using M2MF for buffer copies
[   54.144000] nouveau 0000:80:00.0: DRM: allocated 1920x1200 fb:
0x8000, bo 000000007cee1000
[   54.276000] nouveau 0000:80:00.0: DRM: 0xABCE: Parsing digital
output script table
[   54.312000] Console: switching to colour frame buffer device 240x75
[   54.388000] nouveau 0000:80:00.0: DRM: GPU lockup - switching to
software fbcon
[   54.684000] nouveau 0000:80:00.0: fb0: nouveaufb frame buffer device
[   54.784000] [drm] Initialized nouveau 1.3.1 20120801 for
0000:80:00.0 on minor 0
--
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From: Graham Gower <graham.gower@gmail.com>
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Subject: Re: Video cards init failure loading the device driver kernel module
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Cc: John David Anglin <dave.anglin@bell.net>,
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Hi Simone,

For the radeon driver, you want to be looking at
linux/drivers/gpu/drm/radeon/r100.c: r100_cp_init()
and
linux/drivers/gpu/drm/radeon/r300.c: r300_ring_start()
and
linux/drivers/gpu/drm/radeon/r100.c: r100_ring_test()

As you seem to be aware though, the problem is not in the driver. This
makes the culprit far more difficult to track down, as the code at the
point of failure is not necessarily the code that needs to be fixed.
I'll fire up my c8000 and see if I can remember what I tried last
time, which might rule some things in/out for those who are smarter
than I.

Good luck!
-G

On 3 April 2016 at 17:04, Simone Mannori <simone.mannori@gmail.com> wrote:
> Dear All,
>
> following you suggestions, now I have an - almost - perfectly working
> hp c8000 workstation.
>
> Mission accomplished? Not exactly: despite a lot of efforts, the video
> card section is still not fully operative. Let me resume the
> situation.
>
> I'm using a c8000 with two PA-8800 and Debian 8.0, kernel:
>
> Linux version 4.4.0-1-parisc64-smp (debian-kernel@lists.debian.org)
> (gcc version 4.9.3 (GCC) ) #1 SMP Debian 4.4.6-1 (2016-03-17)
>
> I have two very different AGP video cards (ATI FireGL T2 and NVIDIA
> QUADRO MXR) that have the same issue, despite the two complety
> different drivers ("radeon" and "nouveau"). The full logs are in
> bottom of this post. Just to make a long history short:
>
> ATI FIRE GL T2 ("radeon")
> [   47.836000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
> failed (scratch(0x15E4)=0xCAFEDEAD)
> [   47.948000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
> working (-22).
> [   48.036000] radeon 0000:80:00.0: failed initializing CP (-22).
> [   48.036000] radeon 0000:80:00.0: Disabling GPU acceleration
>
> NVIDIA QUADRO MXR ("nouveau")
> [   54.388000] nouveau 0000:80:00.0: DRM: GPU lockup - switching to
> software fbcon
> [   54.684000] nouveau 0000:80:00.0: fb0: nouveaufb frame buffer device
> [   54.784000] [drm] Initialized nouveau 1.3.1 20120801 for
> 0000:80:00.0 on minor 0
>
> Looking inside the posts on many developers mailing lists, I see that
> most of the efforts have been focused on the video device drivers init
> code. I have tried to force the video drivers using the "modeset"
> parameter without success. I have tried also to boot without video
> driver, then load it manually using "modprobe". No way: the results
> are the same.
>
> "lsmod" tell me that "radeon"/"nouveau" are used by the "ttm" module
> and they cannot be removed (despite the "- r --force" modprobe
> parameters).
>
> Let suppose for a moment that the issue is NOT inside the video driver
> but in the "ttm" module: something is not fully correct in the
> initialization of the ZX1 chipset, therefore the video driver code go
> crazy because cannot match the video card with the chipset.
>
> The only way that I know to investigate this issue is to recompile the
> kernel with debug support and execute "single step"/breakpoint the
> code that initialize the video card and the chipset near the zone of
> the error message.
>
> Question: "What are the deb packages that I need to install to
> recompile the  4.4.0-1-parisc64-smp kernel (or another kernel version
> suitable for this investigation) ?
>
> Thanks in advance for you help
>
>    Simone Mannori - Italy
>
> //**-----------------------------------------------------------------------------------------------------------------
>
> ATI FIRE GL T2
> [   45.460000] [drm] radeon kernel modesetting enabled.
> [   45.576000] radeon 0000:80:00.0: enabling SERR and PARITY (0107 -> 0147)
> [   45.660000] [drm] initializing kernel modesetting (RV350
> 0x1002:0x4154 0x1002:0x0002).
> [   45.812000] [drm] register mmio base: 0xC8020000
> [   45.868000] [drm] register mmio size: 65536
> [   46.084000] radeon 0000:80:00.0: putting AGP V3 device into 8x mode
> [   46.160000] radeon 0000:80:00.0: GTT: 512M 0x60000000 - 0x7FFFFFFF
> [   46.236000] [drm] Generation 2 PCI interface, using max accessible memory
> [   46.316000] radeon 0000:80:00.0: VRAM: 128M 0xFFFFFFFFC0000000 -
> 0xFFFFFFFFC7FFFFFF (128M used)
> [   46.420000] [drm] Detected VRAM RAM=128M, BAR=128M
> [   46.476000] [drm] RAM width 128bits DDR
> [   46.524000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
> [   46.604000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
> [   46.680000] [TTM] Initializing pool allocator
> [   46.732000] [drm] radeon: 128M of VRAM memory ready
> [   46.792000] [drm] radeon: 512M of GTT memory ready.
> [   46.852000] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
> [   46.944000] radeon 0000:80:00.0: WB disabled
> [   46.996000] radeon 0000:80:00.0: fence driver on ring 0 use gpu
> addr 0x0000000060000000 and cpu addr 0x0000000011279000
> [   47.124000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> [   47.204000] [drm] Driver supports precise vblank timestamp query.
> [   47.276000] [drm] radeon: irq initialized.
> [   47.328000] [drm] Loading R300 Microcode
> [   47.468000] radeon 0000:80:00.0: firmware: direct-loading firmware
> radeon/R300_cp.bin
> [   47.584000] [drm] radeon: ring at 0x0000000060001000
> [   47.836000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
> failed (scratch(0x15E4)=0xCAFEDEAD)
> [   47.948000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
> working (-22).
> [   48.036000] radeon 0000:80:00.0: failed initializing CP (-22).
> [   48.036000] radeon 0000:80:00.0: Disabling GPU acceleration
> [  OK  ] Found device ST373207LW 2.
> [   48.236000] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle
> timeout, shutting down CP.
> [   48.384000] [drm] radeon: cp finalized
> [   48.448000] [drm] radeon: cp finalized
> [   48.496000] [TTM] Finalizing pool allocator
> [   48.544000] [TTM] Zone  kernel: Used memory at exit: 0 kiB
> [   48.612000] [TTM] Zone   dma32: Used memory at exit: 0 kiB
> [   48.676000] [drm] radeon: ttm finalized
> [   48.724000] [drm] Forcing AGP to PCI mode
>          Starting File System Check on /d[   48.872000] [drm]
> Generation 2 PCI interface, using max accessible memory
> ev/...2-638b-4a0[   48.968000] radeon 0000:80:00.0: VRAM: 128M
> 0xFFFFFFFFC0000000 - 0xFFFFFFFFC7FFFFFF (128M used)
> c-be55-7444e126d[   49.088000] radeon 0000:80:00.0: GTT: 512M
> 0xFFFFFFFFA0000000 - 0xFFFFFFFFBFFFFFFF
> 283...
> [   49.196000] [drm] Detected VRAM RAM=128M, BAR=128M
> [   49.264000] [drm] RAM width 128bits DDR
> [   49.328000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
> [   49412000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
> [   49.492000] [TTM] Initializing pool allocator
> [   49.492000] [drm] radeon: 128M of VRAM memory ready
> [   49.492000] [drm] radeon: 512M of GTT memory ready.
> [   49.492000] [drm] GART: num cpu pages 131072, num gpu pages 131072
> [   49.636000] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
> [   49.636000] [drm] PCI GART of 512M enabled (table at 0x0000000043300000).
> [   49.636000] radeon 0000:80:00.0: WB enabled
> [   49.636000] radeon 0000:80:00.0: fence driver on ring 0 use gpu
> addr 0xffffffffa0000000 and cpu addr 0x000000007d239000
> [   49.636000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> [   49.636000] [drm] Driver supports precise vblank timestamp query.
> [   49.636000] [drm] radeon: irq initialized.
> [   49.780000] [drm] radeon: ring at 0xFFFFFFFFA0001000
> [   49.972000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
> failed (scratch(0x15E4)=0xCAFEDEAD)
> [   49.976000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
> working (-22).
> [   49.976000] radeon 0000:80:00.0: failed initializing CP (-22).
> [   49.976000] radeon 0000:80:00.0: Disabling GPU acceleration
> [   50.168000] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle
> timeout, shutting down CP.
> [   50.280000] [drm] radeon: cp finalized
> [   50.592000] [drm] Radeon Display Connectors
> [   50.592000] [drm] Connector 0:
> [   50.592000] [drm]   VGA-1
> [   50.592000] [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
> [   50.592000] [drm]   Encoders:
> [   50.592000] [drm]     CRT1: INTERNAL_DAC1
> [   50.592000] [drm] Connector 1:
> [   50.592000] [drm]   DVI-I-1
> [   50.592000] [drm]   HPD1
> [   50.592000] [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
> [   50.592000] [drm]   Encoders:
> [   50.592000] [drm]     CRT2: INTERNAL_DAC2
> [   50.592000] [drm]     DFP1: INTERNAL_TMDS1
> [   50.608000] radeon 0000:80:00.0: No connectors reported connected with modes
> [   50.608000] [drm] Cannot find any crtc or sizes - going 1024x768
> [   50.828000] [drm] fb mappable at 0xFFFFFFFFC0040000
> [   50.828000] [drm] vram apper at 0xFFFFFFFFC0000000
> [   50.828000] [drm] size 3145728
> [   50.828000] [drm] fb depth is 24
> [   50.828000] [drm]    pitch is 4096
> [   51.848000] Console: switching to colour frame buffer device 128x48
> [   52.080000] radeon 0000:80:00.0: fb0: radeondrmfb frame buffer device
> [   52172000] [drm] Initialized radeon 2.43.0 20080528 for
> 0000:80:00.0 on minor 0
>
> NVIDIA QUADRO MXR
> [   51.880000] nouveau 0000:80:00.0: enabling SERR and PARITY (0007 -> 0147)
> [   52.044000] nouveau 0000:80:00.0: NVIDIA NV11 (011300a1)
> [   52.364000] nouveau 0000:80:00.0: bios: version 03.11.01.24.00
> [   52.488000] nouveau 0000:80:00.0: putting AGP V2 device into 4x mode
> [   52.592000] nouveau 0000:80:00.0: putting AGP V2 device into 4x mode
> [   52.668000] nouveau 0000:80:00.0: tmr: unknown input clock freq
> [   52.740000] nouveau 0000:80:00.0: fb: 32 MiB SDRAM
> [   52.844000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
> [   52.920000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
> [   52.920000] [TTM] Initializing pool allocator
> [   52.928000] nouveau 0000:80:00.0: DRM: VRAM: 31 MiB
> [   52.928000] nouveau 0000:80:00.0: DRM: GART: 512 MiB
> [   52.928000] nouveau 0000:80:00.0: DRM: BMP version 5.20
> [   52.928000] nouveau 0000:80:00.0: DRM: No useful DCB data in VBIOS
> [   52.928000] nouveau 0000:80:00.0: DRM: Adaptor not initialised,
> running VBIOS init tables.
> [   53.016000] nouveau 0000:80:00.0: DRM: Saving VGA fonts
> [   53.336000] nouveau 0000:80:00.0: DRM: No useful DCB data in VBIOS
> [   53.336000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> [   53.336000] [drm] Driver supports precise vblank timestamp query.
> [   53.336000] nouveau 0000:80:00.0: DRM: 0xABA2: Parsing digital
> output script table
> [   53.920000] nouveau 0000:80:00.0: DRM: MM: using M2MF for buffer copies
> [   54.144000] nouveau 0000:80:00.0: DRM: allocated 1920x1200 fb:
> 0x8000, bo 000000007cee1000
> [   54.276000] nouveau 0000:80:00.0: DRM: 0xABCE: Parsing digital
> output script table
> [   54.312000] Console: switching to colour frame buffer device 240x75
> [   54.388000] nouveau 0000:80:00.0: DRM: GPU lockup - switching to
> software fbcon
> [   54.684000] nouveau 0000:80:00.0: fb0: nouveaufb frame buffer device
> [   54.784000] [drm] Initialized nouveau 1.3.1 20120801 for
> 0000:80:00.0 on minor 0
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On 03.04.2016 10:33, Graham Gower wrote:
> Hi Simone,
> 
> For the radeon driver, you want to be looking at
> linux/drivers/gpu/drm/radeon/r100.c: r100_cp_init()
> and
> linux/drivers/gpu/drm/radeon/r300.c: r300_ring_start()
> and
> linux/drivers/gpu/drm/radeon/r100.c: r100_ring_test()
> 
> As you seem to be aware though, the problem is not in the driver. This
> makes the culprit far more difficult to track down, as the code at the
> point of failure is not necessarily the code that needs to be fixed.
> I'll fire up my c8000 and see if I can remember what I tried last
> time, which might rule some things in/out for those who are smarter
> than I.

FYI, we do have some documentation available about the zx1 chipset which 
used in the C8000. Specifically:
 https://parisc.wiki.kernel.org/index.php/File:Zx1-mio.pdf
 https://parisc.wiki.kernel.org/index.php/File:Zx1-ioa-mercury_ers.pdf

Helge

> Good luck!
> -G
> 
> On 3 April 2016 at 17:04, Simone Mannori <simone.mannori@gmail.com> wrote:
>> Dear All,
>>
>> following you suggestions, now I have an - almost - perfectly working
>> hp c8000 workstation.
>>
>> Mission accomplished? Not exactly: despite a lot of efforts, the video
>> card section is still not fully operative. Let me resume the
>> situation.
>>
>> I'm using a c8000 with two PA-8800 and Debian 8.0, kernel:
>>
>> Linux version 4.4.0-1-parisc64-smp (debian-kernel@lists.debian.org)
>> (gcc version 4.9.3 (GCC) ) #1 SMP Debian 4.4.6-1 (2016-03-17)
>>
>> I have two very different AGP video cards (ATI FireGL T2 and NVIDIA
>> QUADRO MXR) that have the same issue, despite the two complety
>> different drivers ("radeon" and "nouveau"). The full logs are in
>> bottom of this post. Just to make a long history short:
>>
>> ATI FIRE GL T2 ("radeon")
>> [   47.836000 <tel:47836000>] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
>> failed (scratch(0x15E4)=0xCAFEDEAD)
>> [   47.948000 <tel:47948000>] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
>> working (-22).
>> [   48.036000 <tel:48036000>] radeon 0000:80:00.0: failed initializing CP (-22).
>> [   48.036000 <tel:48036000>] radeon 0000:80:00.0: Disabling GPU acceleration
>>
>> NVIDIA QUADRO MXR ("nouveau")
>> [   54.388000 <tel:54388000>] nouveau 0000:80:00.0: DRM: GPU lockup - switching to
>> software fbcon
>> [   54.684000 <tel:54684000>] nouveau 0000:80:00.0: fb0: nouveaufb frame buffer device
>> [   54.784000 <tel:54784000>] [drm] Initialized nouveau 1.3.1 20120801 <tel:13120120801> for
>> 0000:80:00.0 on minor 0
>>
>> Looking inside the posts on many developers mailing lists, I see that
>> most of the efforts have been focused on the video device drivers init
>> code. I have tried to force the video drivers using the "modeset"
>> parameter without success. I have tried also to boot without video
>> driver, then load it manually using "modprobe". No way: the results
>> are the same.
>>
>> "lsmod" tell me that "radeon"/"nouveau" are used by the "ttm" module
>> and they cannot be removed (despite the "- r --force" modprobe
>> parameters).
>>
>> Let suppose for a moment that the issue is NOT inside the video driver
>> but in the "ttm" module: something is not fully correct in the
>> initialization of the ZX1 chipset, therefore the video driver code go
>> crazy because cannot match the video card with the chipset.
>>
>> The only way that I know to investigate this issue is to recompile the
>> kernel with debug support and execute "single step"/breakpoint the
>> code that initialize the video card and the chipset near the zone of
>> the error message.
>>
>> Question: "What are the deb packages that I need to install to
>> recompile the  4.4.0-1-parisc64-smp kernel (or another kernel version
>> suitable for this investigation) ?
>>
>> Thanks in advance for you help
>>
>>    Simone Mannori - Italy
>>
>> //**-----------------------------------------------------------------------------------------------------------------
>>
>> ATI FIRE GL T2
>> [   45.460000 <tel:45460000>] [drm] radeon kernel modesetting enabled.
>> [   45.576000 <tel:45576000>] radeon 0000:80:00.0: enabling SERR and PARITY (0107 -> 0147)
>> [   45.660000 <tel:45660000>] [drm] initializing kernel modesetting (RV350
>> 0x1002:0x4154 0x1002:0x0002).
>> [   45.812000 <tel:45812000>] [drm] register mmio base: 0xC8020000
>> [   45.868000 <tel:45868000>] [drm] register mmio size: 65536
>> [   46.084000 <tel:46084000>] radeon 0000:80:00.0: putting AGP V3 device into 8x mode
>> [   46.160000 <tel:46160000>] radeon 0000:80:00.0: GTT: 512M 0x60000000 - 0x7FFFFFFF
>> [   46.236000 <tel:46236000>] [drm] Generation 2 PCI interface, using max accessible memory
>> [   46.316000 <tel:46316000>] radeon 0000:80:00.0: VRAM: 128M 0xFFFFFFFFC0000000 -
>> 0xFFFFFFFFC7FFFFFF (128M used)
>> [   46.420000 <tel:46420000>] [drm] Detected VRAM RAM=128M, BAR=128M
>> [   46.476000 <tel:46476000>] [drm] RAM width 128bits DDR
>> [   46.524000 <tel:46524000>] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
>> [   46.604000 <tel:46604000>] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
>> [   46.680000 <tel:46680000>] [TTM] Initializing pool allocator
>> [   46.732000 <tel:46732000>] [drm] radeon: 128M of VRAM memory ready
>> [   46.792000 <tel:46792000>] [drm] radeon: 512M of GTT memory ready.
>> [   46.852000 <tel:46852000>] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
>> [   46.944000 <tel:46944000>] radeon 0000:80:00.0: WB disabled
>> [   46.996000 <tel:46996000>] radeon 0000:80:00.0: fence driver on ring 0 use gpu
>> addr 0x0000000060000000 and cpu addr 0x0000000011279000
>> [   47.124000 <tel:47124000>] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>> [   47.204000 <tel:47204000>] [drm] Driver supports precise vblank timestamp query.
>> [   47.276000 <tel:47276000>] [drm] radeon: irq initialized.
>> [   47.328000 <tel:47328000>] [drm] Loading R300 Microcode
>> [   47.468000 <tel:47468000>] radeon 0000:80:00.0: firmware: direct-loading firmware
>> radeon/R300_cp.bin
>> [   47.584000 <tel:47584000>] [drm] radeon: ring at 0x0000000060001000
>> [   47.836000 <tel:47836000>] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
>> failed (scratch(0x15E4)=0xCAFEDEAD)
>> [   47.948000 <tel:47948000>] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
>> working (-22).
>> [   48.036000 <tel:48036000>] radeon 0000:80:00.0: failed initializing CP (-22).
>> [   48.036000 <tel:48036000>] radeon 0000:80:00.0: Disabling GPU acceleration
>> [  OK  ] Found device ST373207LW 2.
>> [   48.236000 <tel:48236000>] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle
>> timeout, shutting down CP.
>> [   48.384000 <tel:48384000>] [drm] radeon: cp finalized
>> [   48.448000 <tel:48448000>] [drm] radeon: cp finalized
>> [   48.496000 <tel:48496000>] [TTM] Finalizing pool allocator
>> [   48.544000 <tel:48544000>] [TTM] Zone  kernel: Used memory at exit: 0 kiB
>> [   48.612000 <tel:48612000>] [TTM] Zone   dma32: Used memory at exit: 0 kiB
>> [   48.676000 <tel:48676000>] [drm] radeon: ttm finalized
>> [   48.724000 <tel:48724000>] [drm] Forcing AGP to PCI mode
>>          Starting File System Check on /d[   48.872000 <tel:48872000>] [drm]
>> Generation 2 PCI interface, using max accessible memory
>> ev/...2-638b-4a0[   48.968000] radeon 0000:80:00.0: VRAM: 128M
>> 0xFFFFFFFFC0000000 - 0xFFFFFFFFC7FFFFFF (128M used)
>> c-be55-7444e126d[   49.088000 <tel:49088000>] radeon 0000:80:00.0: GTT: 512M
>> 0xFFFFFFFFA0000000 - 0xFFFFFFFFBFFFFFFF
>> 283...
>> [   49.196000 <tel:49196000>] [drm] Detected VRAM RAM=128M, BAR=128M
>> [   49.264000 <tel:49264000>] [drm] RAM width 128bits DDR
>> [   49.328000 <tel:49328000>] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
>> [   49412000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
>> [   49.492000 <tel:49492000>] [TTM] Initializing pool allocator
>> [   49.492000 <tel:49492000>] [drm] radeon: 128M of VRAM memory ready
>> [   49.492000 <tel:49492000>] [drm] radeon: 512M of GTT memory ready.
>> [   49.492000 <tel:49492000>] [drm] GART: num cpu pages 131072, num gpu pages 131072
>> [   49.636000 <tel:49636000>] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
>> [   49.636000 <tel:49636000>] [drm] PCI GART of 512M enabled (table at 0x0000000043300000).
>> [   49.636000 <tel:49636000>] radeon 0000:80:00.0: WB enabled
>> [   49.636000 <tel:49636000>] radeon 0000:80:00.0: fence driver on ring 0 use gpu
>> addr 0xffffffffa0000000 and cpu addr 0x000000007d239000
>> [   49.636000 <tel:49636000>] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>> [   49.636000 <tel:49636000>] [drm] Driver supports precise vblank timestamp query.
>> [   49.636000 <tel:49636000>] [drm] radeon: irq initialized.
>> [   49.780000 <tel:49780000>] [drm] radeon: ring at 0xFFFFFFFFA0001000
>> [   49.972000 <tel:49972000>] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
>> failed (scratch(0x15E4)=0xCAFEDEAD)
>> [   49.976000 <tel:49976000>] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
>> working (-22).
>> [   49.976000 <tel:49976000>] radeon 0000:80:00.0: failed initializing CP (-22).
>> [   49.976000 <tel:49976000>] radeon 0000:80:00.0: Disabling GPU acceleration
>> [   50.168000] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle
>> timeout, shutting down CP.
>> [   50.280000] [drm] radeon: cp finalized
>> [   50.592000] [drm] Radeon Display Connectors
>> [   50.592000] [drm] Connector 0:
>> [   50.592000] [drm]   VGA-1
>> [   50.592000] [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
>> [   50.592000] [drm]   Encoders:
>> [   50.592000] [drm]     CRT1: INTERNAL_DAC1
>> [   50.592000] [drm] Connector 1:
>> [   50.592000] [drm]   DVI-I-1
>> [   50.592000] [drm]   HPD1
>> [   50.592000] [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
>> [   50.592000] [drm]   Encoders:
>> [   50.592000] [drm]     CRT2: INTERNAL_DAC2
>> [   50.592000] [drm]     DFP1: INTERNAL_TMDS1
>> [   50.608000] radeon 0000:80:00.0: No connectors reported connected with modes
>> [   50.608000] [drm] Cannot find any crtc or sizes - going 1024x768
>> [   50.828000] [drm] fb mappable at 0xFFFFFFFFC0040000
>> [   50.828000] [drm] vram apper at 0xFFFFFFFFC0000000
>> [   50.828000] [drm] size 3145728
>> [   50.828000] [drm] fb depth is 24
>> [   50.828000] [drm]    pitch is 4096
>> [   51.848000 <tel:51848000>] Console: switching to colour frame buffer device 128x48
>> [   52.080000 <tel:52080000>] radeon 0000:80:00.0: fb0: radeondrmfb frame buffer device
>> [   52172000] [drm] Initialized radeon 2.43.0 20080528 for
>> 0000:80:00.0 on minor 0
>>
>> NVIDIA QUADRO MXR
>> [   51.880000 <tel:51880000>] nouveau 0000:80:00.0: enabling SERR and PARITY (0007 -> 0147)
>> [   52.044000 <tel:52044000>] nouveau 0000:80:00.0: NVIDIA NV11 (011300a1)
>> [   52.364000 <tel:52364000>] nouveau 0000:80:00.0: bios: version 03.11.01.24.00 <tel:0311012400>
>> [   52.488000 <tel:52488000>] nouveau 0000:80:00.0: putting AGP V2 device into 4x mode
>> [   52.592000 <tel:52592000>] nouveau 0000:80:00.0: putting AGP V2 device into 4x mode
>> [   52.668000 <tel:52668000>] nouveau 0000:80:00.0: tmr: unknown input clock freq
>> [   52.740000 <tel:52740000>] nouveau 0000:80:00.0: fb: 32 MiB SDRAM
>> [   52.844000 <tel:52844000>] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
>> [   52.920000 <tel:52920000>] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
>> [   52.920000 <tel:52920000>] [TTM] Initializing pool allocator
>> [   52.928000 <tel:52928000>] nouveau 0000:80:00.0: DRM: VRAM: 31 MiB
>> [   52.928000 <tel:52928000>] nouveau 0000:80:00.0: DRM: GART: 512 MiB
>> [   52.928000 <tel:52928000>] nouveau 0000:80:00.0: DRM: BMP version 5.20
>> [   52.928000 <tel:52928000>] nouveau 0000:80:00.0: DRM: No useful DCB data in VBIOS
>> [   52.928000 <tel:52928000>] nouveau 0000:80:00.0: DRM: Adaptor not initialised,
>> running VBIOS init tables.
>> [   53.016000 <tel:53016000>] nouveau 0000:80:00.0: DRM: Saving VGA fonts
>> [   53.336000 <tel:53336000>] nouveau 0000:80:00.0: DRM: No useful DCB data in VBIOS
>> [   53.336000 <tel:53336000>] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>> [   53.336000 <tel:53336000>] [drm] Driver supports precise vblank timestamp query.
>> [   53.336000 <tel:53336000>] nouveau 0000:80:00.0: DRM: 0xABA2: Parsing digital
>> output script table
>> [   53.920000 <tel:53920000>] nouveau 0000:80:00.0: DRM: MM: using M2MF for buffer copies
>> [   54.144000 <tel:54144000>] nouveau 0000:80:00.0: DRM: allocated 1920x1200 fb:
>> 0x8000, bo 000000007cee1000
>> [   54.276000 <tel:54276000>] nouveau 0000:80:00.0: DRM: 0xABCE: Parsing digital
>> output script table
>> [   54.312000 <tel:54312000>] Console: switching to colour frame buffer device 240x75
>> [   54.388000 <tel:54388000>] nouveau 0000:80:00.0: DRM: GPU lockup - switching to
>> software fbcon
>> [   54.684000 <tel:54684000>] nouveau 0000:80:00.0: fb0: nouveaufb frame buffer device
>> [   54.784000 <tel:54784000>] [drm] Initialized nouveau 1.3.1 20120801 <tel:13120120801> for
>> 0000:80:00.0 on minor 0

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From - Thu Nov 08 21:38:39 2018
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From: Simone Mannori <simone.mannori@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.comp.freedesktop.xorg.nouveau
Subject: Re: [Nouveau] PA-RISC (hppa) video cards init failure loading the
 device driver kernel module
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Cc: "nouveau@lists.freedesktop.org" <nouveau@lists.freedesktop.org>,
	Paolo Gai <pj@evidence.eu.com>,
	Graham Gower <graham.gower@gmail.com>,
	Gianni Bianchini <giannibi@dii.unisi.it>,
	Helge Deller <deller@gmx.de>,
	Riccardo Schiavi <r.schiavi@evidence.eu.com>,
	John David Anglin <dave.anglin@bell.net>,
	Daniele Mazzi <daniele.mazzi@gmail.com>
To: Ilia Mirkin <imirkin@alum.mit.edu>,
	linux-parisc <linux-parisc@vger.kernel.org>
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Dear Ilia,

this page summarize all the possible options of the "nouveau" kernel module:

https://nouveau.freedesktop.org/wiki/KernelModuleParameters/

I will test the options that you have suggested as soon as possible.

Try a PCI video card is a very good advice because the
AGP/FX1(chipset) is on the top of the "usual suspects" list;
unfortunately the c8000 has 3.3 PCI slots and all the (very old) PCI
video cards in my hands have 5V PCI connector

Many thanks for your suggestions and advice.

   Simone Mannori - Italy


On 4 April 2016 at 04:18, Ilia Mirkin <imirkin@alum.mit.edu> wrote:
> Not sure about the radeon issue, but
>
> "DRM: GPU lockup - switching to software fbcon"
>
> basically means "the CPU isn't able to submit commands, or the GPU
> isn't executing the commands". Basically the GPU can only have so many
> commands outstanding [well, command buffers], and we hit that limit.
> From what I understand, PA-RISC has a "funny" architecture that is
> very unlike x86 in terms of memory coherency, and is thus more likely
> to hit issues that don't exist on other architectures. Perhaps you can
> summarize the key points of oddness? Perhaps there's some debug
> "disable caches" mode or something? Also note that nouveau won't work
> well on an architecture with a non-4K page size. Not sure if that's
> the situation for you.
>
> I see that it's using AGP - there's a high chance that something
> AGP-related is broken - try booting with nouveau.config=NvAGP=0 (or
> nouveau.agpmode=0 for pre-4.3 kernels).
>
> Perhaps it has issues DMA'ing the command buffer from system memory,
> we can try forcing the pushbuf to be in vram - boot with
> nouveau.vram_pushbuf=1 .
>
> If there are PCI slots and you have a PCI video card handy, I'd
> definitely try that too.
>
> Good luck,
>
>   -ilia
>
> On Sun, Apr 3, 2016 at 3:51 AM, Simone Mannori <simone.mannori@gmail.com> wrote:
>> Dear "nouveau" developers,
>>
>> I know that many very competent guys have already spent a lot of time
>> and efforts on this issue without success. I have started to play with
>> "hppa" two weeks ago and, with the support of the linux-parisc mailing
>> list people, now I have a - almost fully - working workstation (hp
>> c8000).
>>
>> Everythings work perfectly BUT the video card. No matter the model,
>> type, driver, etc. the results are always the same: a very slow frame
>> buffer mode only.
>>
>> I'm forwarding the results of my investigations with the hope that
>> someone of you will help me to find the right path to fix this issue.
>>
>> Thanks in advance for your help.
>>
>>   Simone Mannori - Italy
>>
>> //**------------------------------------------------------------------------------------------------------------
>>
>> ---------- Forwarded message ----------
>> From: Simone Mannori <simone.mannori@gmail.com>
>> Date: 3 April 2016 at 09:34
>> Subject: Video cards init failure loading the device driver kernel module
>> To: John David Anglin <dave.anglin@bell.net>
>> Cc: Helge Deller <deller@gmx.de>, Graham Gower
>> <graham.gower@gmail.com>, linux-parisc <linux-parisc@vger.kernel.org>
>>
>>
>> Dear All,
>>
>> following you suggestions, now I have an - almost - perfectly working
>> hp c8000 workstation.
>>
>> Mission accomplished? Not exactly: despite a lot of efforts, the video
>> card section is still not fully operative. Let me resume the
>> situation.
>>
>> I'm using a c8000 with two PA-8800 and Debian 8.0, kernel:
>>
>> Linux version 4.4.0-1-parisc64-smp (debian-kernel@lists.debian.org)
>> (gcc version 4.9.3 (GCC) ) #1 SMP Debian 4.4.6-1 (2016-03-17)
>>
>> I have two very different AGP video cards (ATI FireGL T2 and NVIDIA
>> QUADRO MXR) that have the same issue, despite the two complety
>> different drivers ("radeon" and "nouveau"). The full logs are in
>> bottom of this post. Just to make a long history short:
>>
>> ATI FIRE GL T2 ("radeon")
>> [   47.836000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
>> failed (scratch(0x15E4)=0xCAFEDEAD)
>> [   47.948000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
>> working (-22).
>> [   48.036000] radeon 0000:80:00.0: failed initializing CP (-22).
>> [   48.036000] radeon 0000:80:00.0: Disabling GPU acceleration
>>
>> NVIDIA QUADRO MXR ("nouveau")
>> [   54.388000] nouveau 0000:80:00.0: DRM: GPU lockup - switching to
>> software fbcon
>> [   54.684000] nouveau 0000:80:00.0: fb0: nouveaufb frame buffer device
>> [   54.784000] [drm] Initialized nouveau 1.3.1 20120801 for
>> 0000:80:00.0 on minor 0
>>
>> Looking inside the posts on many developers mailing lists, I see that
>> most of the efforts have been focused on the video device drivers init
>> code. I have tried to force the video drivers using the "modeset"
>> parameter without success. I have tried also to boot without video
>> driver, then load it manually using "modprobe". No way: the results
>> are the same.
>>
>> "lsmod" tell me that "radeon"/"nouveau" are used by the "ttm" module
>> and they cannot be removed (despite the "- r --force" modprobe
>> parameters).
>>
>> Let suppose for a moment that the issue is NOT inside the video driver
>> but in the "ttm" module: something is not fully correct in the
>> initialization of the ZX1 chipset, therefore the video driver code go
>> crazy because cannot match the video card with the chipset.
>>
>> The only way that I know to investigate this issue is to recompile the
>> kernel with debug support and execute "single step"/breakpoint the
>> code that initialize the video card and the chipset near the zone of
>> the error message.
>>
>> Question: "What are the deb packages that I need to install to
>> recompile the  4.4.0-1-parisc64-smp kernel (or another kernel version
>> suitable for this investigation) ?
>>
>> Thanks in advance for you help
>>
>>    Simone Mannori - Italy
>>
>> //**-----------------------------------------------------------------------------------------------------------------
>>
>> ATI FIRE GL T2
>> [   45.460000] [drm] radeon kernel modesetting enabled.
>> [   45.576000] radeon 0000:80:00.0: enabling SERR and PARITY (0107 -> 0147)
>> [   45.660000] [drm] initializing kernel modesetting (RV350
>> 0x1002:0x4154 0x1002:0x0002).
>> [   45.812000] [drm] register mmio base: 0xC8020000
>> [   45.868000] [drm] register mmio size: 65536
>> [   46.084000] radeon 0000:80:00.0: putting AGP V3 device into 8x mode
>> [   46.160000] radeon 0000:80:00.0: GTT: 512M 0x60000000 - 0x7FFFFFFF
>> [   46.236000] [drm] Generation 2 PCI interface, using max accessible memory
>> [   46.316000] radeon 0000:80:00.0: VRAM: 128M 0xFFFFFFFFC0000000 -
>> 0xFFFFFFFFC7FFFFFF (128M used)
>> [   46.420000] [drm] Detected VRAM RAM=128M, BAR=128M
>> [   46.476000] [drm] RAM width 128bits DDR
>> [   46.524000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
>> [   46.604000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
>> [   46.680000] [TTM] Initializing pool allocator
>> [   46.732000] [drm] radeon: 128M of VRAM memory ready
>> [   46.792000] [drm] radeon: 512M of GTT memory ready.
>> [   46.852000] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
>> [   46.944000] radeon 0000:80:00.0: WB disabled
>> [   46.996000] radeon 0000:80:00.0: fence driver on ring 0 use gpu
>> addr 0x0000000060000000 and cpu addr 0x0000000011279000
>> [   47.124000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>> [   47.204000] [drm] Driver supports precise vblank timestamp query.
>> [   47.276000] [drm] radeon: irq initialized.
>> [   47.328000] [drm] Loading R300 Microcode
>> [   47.468000] radeon 0000:80:00.0: firmware: direct-loading firmware
>> radeon/R300_cp.bin
>> [   47.584000] [drm] radeon: ring at 0x0000000060001000
>> [   47.836000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
>> failed (scratch(0x15E4)=0xCAFEDEAD)
>> [   47.948000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
>> working (-22).
>> [   48.036000] radeon 0000:80:00.0: failed initializing CP (-22).
>> [   48.036000] radeon 0000:80:00.0: Disabling GPU acceleration
>> [  OK  ] Found device ST373207LW 2.
>> [   48.236000] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle
>> timeout, shutting down CP.
>> [   48.384000] [drm] radeon: cp finalized
>> [   48.448000] [drm] radeon: cp finalized
>> [   48.496000] [TTM] Finalizing pool allocator
>> [   48.544000] [TTM] Zone  kernel: Used memory at exit: 0 kiB
>> [   48.612000] [TTM] Zone   dma32: Used memory at exit: 0 kiB
>> [   48.676000] [drm] radeon: ttm finalized
>> [   48.724000] [drm] Forcing AGP to PCI mode
>>          Starting File System Check on /d[   48.872000] [drm]
>> Generation 2 PCI interface, using max accessible memory
>> ev/...2-638b-4a0[   48.968000] radeon 0000:80:00.0: VRAM: 128M
>> 0xFFFFFFFFC0000000 - 0xFFFFFFFFC7FFFFFF (128M used)
>> c-be55-7444e126d[   49.088000] radeon 0000:80:00.0: GTT: 512M
>> 0xFFFFFFFFA0000000 - 0xFFFFFFFFBFFFFFFF
>> 283...
>> [   49.196000] [drm] Detected VRAM RAM=128M, BAR=128M
>> [   49.264000] [drm] RAM width 128bits DDR
>> [   49.328000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
>> [   49412000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
>> [   49.492000] [TTM] Initializing pool allocator
>> [   49.492000] [drm] radeon: 128M of VRAM memory ready
>> [   49.492000] [drm] radeon: 512M of GTT memory ready.
>> [   49.492000] [drm] GART: num cpu pages 131072, num gpu pages 131072
>> [   49.636000] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
>> [   49.636000] [drm] PCI GART of 512M enabled (table at 0x0000000043300000).
>> [   49.636000] radeon 0000:80:00.0: WB enabled
>> [   49.636000] radeon 0000:80:00.0: fence driver on ring 0 use gpu
>> addr 0xffffffffa0000000 and cpu addr 0x000000007d239000
>> [   49.636000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>> [   49.636000] [drm] Driver supports precise vblank timestamp query.
>> [   49.636000] [drm] radeon: irq initialized.
>> [   49.780000] [drm] radeon: ring at 0xFFFFFFFFA0001000
>> [   49.972000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
>> failed (scratch(0x15E4)=0xCAFEDEAD)
>> [   49.976000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
>> working (-22).
>> [   49.976000] radeon 0000:80:00.0: failed initializing CP (-22).
>> [   49.976000] radeon 0000:80:00.0: Disabling GPU acceleration
>> [   50.168000] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle
>> timeout, shutting down CP.
>> [   50.280000] [drm] radeon: cp finalized
>> [   50.592000] [drm] Radeon Display Connectors
>> [   50.592000] [drm] Connector 0:
>> [   50.592000] [drm]   VGA-1
>> [   50.592000] [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
>> [   50.592000] [drm]   Encoders:
>> [   50.592000] [drm]     CRT1: INTERNAL_DAC1
>> [   50.592000] [drm] Connector 1:
>> [   50.592000] [drm]   DVI-I-1
>> [   50.592000] [drm]   HPD1
>> [   50.592000] [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
>> [   50.592000] [drm]   Encoders:
>> [   50.592000] [drm]     CRT2: INTERNAL_DAC2
>> [   50.592000] [drm]     DFP1: INTERNAL_TMDS1
>> [   50.608000] radeon 0000:80:00.0: No connectors reported connected with modes
>> [   50.608000] [drm] Cannot find any crtc or sizes - going 1024x768
>> [   50.828000] [drm] fb mappable at 0xFFFFFFFFC0040000
>> [   50.828000] [drm] vram apper at 0xFFFFFFFFC0000000
>> [   50.828000] [drm] size 3145728
>> [   50.828000] [drm] fb depth is 24
>> [   50.828000] [drm]    pitch is 4096
>> [   51.848000] Console: switching to colour frame buffer device 128x48
>> [   52.080000] radeon 0000:80:00.0: fb0: radeondrmfb frame buffer device
>> [   52172000] [drm] Initialized radeon 2.43.0 20080528 for
>> 0000:80:00.0 on minor 0
>>
>> NVIDIA QUADRO MXR
>> [   51.880000] nouveau 0000:80:00.0: enabling SERR and PARITY (0007 -> 0147)
>> [   52.044000] nouveau 0000:80:00.0: NVIDIA NV11 (011300a1)
>> [   52.364000] nouveau 0000:80:00.0: bios: version 03.11.01.24.00
>> [   52.488000] nouveau 0000:80:00.0: putting AGP V2 device into 4x mode
>> [   52.592000] nouveau 0000:80:00.0: putting AGP V2 device into 4x mode
>> [   52.668000] nouveau 0000:80:00.0: tmr: unknown input clock freq
>> [   52.740000] nouveau 0000:80:00.0: fb: 32 MiB SDRAM
>> [   52.844000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
>> [   52.920000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
>> [   52.920000] [TTM] Initializing pool allocator
>> [   52.928000] nouveau 0000:80:00.0: DRM: VRAM: 31 MiB
>> [   52.928000] nouveau 0000:80:00.0: DRM: GART: 512 MiB
>> [   52.928000] nouveau 0000:80:00.0: DRM: BMP version 5.20
>> [   52.928000] nouveau 0000:80:00.0: DRM: No useful DCB data in VBIOS
>> [   52.928000] nouveau 0000:80:00.0: DRM: Adaptor not initialised,
>> running VBIOS init tables.
>> [   53.016000] nouveau 0000:80:00.0: DRM: Saving VGA fonts
>> [   53.336000] nouveau 0000:80:00.0: DRM: No useful DCB data in VBIOS
>> [   53.336000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>> [   53.336000] [drm] Driver supports precise vblank timestamp query.
>> [   53.336000] nouveau 0000:80:00.0: DRM: 0xABA2: Parsing digital
>> output script table
>> [   53.920000] nouveau 0000:80:00.0: DRM: MM: using M2MF for buffer copies
>> [   54.144000] nouveau 0000:80:00.0: DRM: allocated 1920x1200 fb:
>> 0x8000, bo 000000007cee1000
>> [   54.276000] nouveau 0000:80:00.0: DRM: 0xABCE: Parsing digital
>> output script table
>> [   54.312000] Console: switching to colour frame buffer device 240x75
>> [   54.388000] nouveau 0000:80:00.0: DRM: GPU lockup - switching to
>> software fbcon
>> [   54.684000] nouveau 0000:80:00.0: fb0: nouveaufb frame buffer device
>> [   54.784000] [drm] Initialized nouveau 1.3.1 20120801 for
>> 0000:80:00.0 on minor 0
>> _______________________________________________
>> Nouveau mailing list
>> Nouveau@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/nouveau
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From: Simone Mannori <simone.mannori-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Newsgroups: gmane.comp.freedesktop.xorg.nouveau,gmane.linux.ports.parisc
Subject: [Radeon] PA-RISC (hppa) video cards init failure loading
 the device driver kernel module
Date: Mon, 4 Apr 2016 06:03:19 +0200
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Cc: Paolo Gai <pj-YOzL5CV4y4YG1A2ADO40+w@public.gmane.org>, Graham Gower <graham.gower-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
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From - Thu Nov 08 21:38:39 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc,gmane.comp.freedesktop.xorg.nouveau
Subject: Re: [Nouveau] PA-RISC (hppa) video cards init failure loading the device driver kernel module
Date: Mon, 4 Apr 2016 19:05:25 -0400
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Cc: Ilia Mirkin <imirkin@alum.mit.edu>,
	linux-parisc <linux-parisc@vger.kernel.org>,
	"nouveau@lists.freedesktop.org" <nouveau@lists.freedesktop.org>,
	Paolo Gai <pj@evidence.eu.com>,
	Graham Gower <graham.gower@gmail.com>,
	Gianni Bianchini <giannibi@dii.unisi.it>,
	Helge Deller <deller@gmx.de>,
	Riccardo Schiavi <r.schiavi@evidence.eu.com>,
	Daniele Mazzi <daniele.mazzi@gmail.com>
To: Simone Mannori <simone.mannori@gmail.com>
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There is a TLB U bit which when set prevents cache move in.  This should be set for
pages which map to the I/O space.  I think it should be checked that it is correctly being
set for these cards.

On 2016-04-03, at 11:56 PM, Simone Mannori wrote:

> Dear Ilia,
> 
> this page summarize all the possible options of the "nouveau" kernel module:
> 
> https://nouveau.freedesktop.org/wiki/KernelModuleParameters/
> 
> I will test the options that you have suggested as soon as possible.
> 
> Try a PCI video card is a very good advice because the
> AGP/FX1(chipset) is on the top of the "usual suspects" list;
> unfortunately the c8000 has 3.3 PCI slots and all the (very old) PCI
> video cards in my hands have 5V PCI connector
> 
> Many thanks for your suggestions and advice.
> 
>   Simone Mannori - Italy
> 
> 
> On 4 April 2016 at 04:18, Ilia Mirkin <imirkin@alum.mit.edu> wrote:
>> Not sure about the radeon issue, but
>> 
>> "DRM: GPU lockup - switching to software fbcon"
>> 
>> basically means "the CPU isn't able to submit commands, or the GPU
>> isn't executing the commands". Basically the GPU can only have so many
>> commands outstanding [well, command buffers], and we hit that limit.
>> From what I understand, PA-RISC has a "funny" architecture that is
>> very unlike x86 in terms of memory coherency, and is thus more likely
>> to hit issues that don't exist on other architectures. Perhaps you can
>> summarize the key points of oddness? Perhaps there's some debug
>> "disable caches" mode or something? Also note that nouveau won't work
>> well on an architecture with a non-4K page size. Not sure if that's
>> the situation for you.
>> 
>> I see that it's using AGP - there's a high chance that something
>> AGP-related is broken - try booting with nouveau.config=NvAGP=0 (or
>> nouveau.agpmode=0 for pre-4.3 kernels).
>> 
>> Perhaps it has issues DMA'ing the command buffer from system memory,
>> we can try forcing the pushbuf to be in vram - boot with
>> nouveau.vram_pushbuf=1 .
>> 
>> If there are PCI slots and you have a PCI video card handy, I'd
>> definitely try that too.
>> 
>> Good luck,
>> 
>>  -ilia
>> 
>> On Sun, Apr 3, 2016 at 3:51 AM, Simone Mannori <simone.mannori@gmail.com> wrote:
>>> Dear "nouveau" developers,
>>> 
>>> I know that many very competent guys have already spent a lot of time
>>> and efforts on this issue without success. I have started to play with
>>> "hppa" two weeks ago and, with the support of the linux-parisc mailing
>>> list people, now I have a - almost fully - working workstation (hp
>>> c8000).
>>> 
>>> Everythings work perfectly BUT the video card. No matter the model,
>>> type, driver, etc. the results are always the same: a very slow frame
>>> buffer mode only.
>>> 
>>> I'm forwarding the results of my investigations with the hope that
>>> someone of you will help me to find the right path to fix this issue.
>>> 
>>> Thanks in advance for your help.
>>> 
>>>  Simone Mannori - Italy
>>> 
>>> //**------------------------------------------------------------------------------------------------------------
>>> 
>>> ---------- Forwarded message ----------
>>> From: Simone Mannori <simone.mannori@gmail.com>
>>> Date: 3 April 2016 at 09:34
>>> Subject: Video cards init failure loading the device driver kernel module
>>> To: John David Anglin <dave.anglin@bell.net>
>>> Cc: Helge Deller <deller@gmx.de>, Graham Gower
>>> <graham.gower@gmail.com>, linux-parisc <linux-parisc@vger.kernel.org>
>>> 
>>> 
>>> Dear All,
>>> 
>>> following you suggestions, now I have an - almost - perfectly working
>>> hp c8000 workstation.
>>> 
>>> Mission accomplished? Not exactly: despite a lot of efforts, the video
>>> card section is still not fully operative. Let me resume the
>>> situation.
>>> 
>>> I'm using a c8000 with two PA-8800 and Debian 8.0, kernel:
>>> 
>>> Linux version 4.4.0-1-parisc64-smp (debian-kernel@lists.debian.org)
>>> (gcc version 4.9.3 (GCC) ) #1 SMP Debian 4.4.6-1 (2016-03-17)
>>> 
>>> I have two very different AGP video cards (ATI FireGL T2 and NVIDIA
>>> QUADRO MXR) that have the same issue, despite the two complety
>>> different drivers ("radeon" and "nouveau"). The full logs are in
>>> bottom of this post. Just to make a long history short:
>>> 
>>> ATI FIRE GL T2 ("radeon")
>>> [   47.836000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
>>> failed (scratch(0x15E4)=0xCAFEDEAD)
>>> [   47.948000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
>>> working (-22).
>>> [   48.036000] radeon 0000:80:00.0: failed initializing CP (-22).
>>> [   48.036000] radeon 0000:80:00.0: Disabling GPU acceleration
>>> 
>>> NVIDIA QUADRO MXR ("nouveau")
>>> [   54.388000] nouveau 0000:80:00.0: DRM: GPU lockup - switching to
>>> software fbcon
>>> [   54.684000] nouveau 0000:80:00.0: fb0: nouveaufb frame buffer device
>>> [   54.784000] [drm] Initialized nouveau 1.3.1 20120801 for
>>> 0000:80:00.0 on minor 0
>>> 
>>> Looking inside the posts on many developers mailing lists, I see that
>>> most of the efforts have been focused on the video device drivers init
>>> code. I have tried to force the video drivers using the "modeset"
>>> parameter without success. I have tried also to boot without video
>>> driver, then load it manually using "modprobe". No way: the results
>>> are the same.
>>> 
>>> "lsmod" tell me that "radeon"/"nouveau" are used by the "ttm" module
>>> and they cannot be removed (despite the "- r --force" modprobe
>>> parameters).
>>> 
>>> Let suppose for a moment that the issue is NOT inside the video driver
>>> but in the "ttm" module: something is not fully correct in the
>>> initialization of the ZX1 chipset, therefore the video driver code go
>>> crazy because cannot match the video card with the chipset.
>>> 
>>> The only way that I know to investigate this issue is to recompile the
>>> kernel with debug support and execute "single step"/breakpoint the
>>> code that initialize the video card and the chipset near the zone of
>>> the error message.
>>> 
>>> Question: "What are the deb packages that I need to install to
>>> recompile the  4.4.0-1-parisc64-smp kernel (or another kernel version
>>> suitable for this investigation) ?
>>> 
>>> Thanks in advance for you help
>>> 
>>>   Simone Mannori - Italy
>>> 
>>> //**-----------------------------------------------------------------------------------------------------------------
>>> 
>>> ATI FIRE GL T2
>>> [   45.460000] [drm] radeon kernel modesetting enabled.
>>> [   45.576000] radeon 0000:80:00.0: enabling SERR and PARITY (0107 -> 0147)
>>> [   45.660000] [drm] initializing kernel modesetting (RV350
>>> 0x1002:0x4154 0x1002:0x0002).
>>> [   45.812000] [drm] register mmio base: 0xC8020000
>>> [   45.868000] [drm] register mmio size: 65536
>>> [   46.084000] radeon 0000:80:00.0: putting AGP V3 device into 8x mode
>>> [   46.160000] radeon 0000:80:00.0: GTT: 512M 0x60000000 - 0x7FFFFFFF
>>> [   46.236000] [drm] Generation 2 PCI interface, using max accessible memory
>>> [   46.316000] radeon 0000:80:00.0: VRAM: 128M 0xFFFFFFFFC0000000 -
>>> 0xFFFFFFFFC7FFFFFF (128M used)
>>> [   46.420000] [drm] Detected VRAM RAM=128M, BAR=128M
>>> [   46.476000] [drm] RAM width 128bits DDR
>>> [   46.524000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
>>> [   46.604000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
>>> [   46.680000] [TTM] Initializing pool allocator
>>> [   46.732000] [drm] radeon: 128M of VRAM memory ready
>>> [   46.792000] [drm] radeon: 512M of GTT memory ready.
>>> [   46.852000] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
>>> [   46.944000] radeon 0000:80:00.0: WB disabled
>>> [   46.996000] radeon 0000:80:00.0: fence driver on ring 0 use gpu
>>> addr 0x0000000060000000 and cpu addr 0x0000000011279000
>>> [   47.124000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>>> [   47.204000] [drm] Driver supports precise vblank timestamp query.
>>> [   47.276000] [drm] radeon: irq initialized.
>>> [   47.328000] [drm] Loading R300 Microcode
>>> [   47.468000] radeon 0000:80:00.0: firmware: direct-loading firmware
>>> radeon/R300_cp.bin
>>> [   47.584000] [drm] radeon: ring at 0x0000000060001000
>>> [   47.836000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
>>> failed (scratch(0x15E4)=0xCAFEDEAD)
>>> [   47.948000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
>>> working (-22).
>>> [   48.036000] radeon 0000:80:00.0: failed initializing CP (-22).
>>> [   48.036000] radeon 0000:80:00.0: Disabling GPU acceleration
>>> [  OK  ] Found device ST373207LW 2.
>>> [   48.236000] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle
>>> timeout, shutting down CP.
>>> [   48.384000] [drm] radeon: cp finalized
>>> [   48.448000] [drm] radeon: cp finalized
>>> [   48.496000] [TTM] Finalizing pool allocator
>>> [   48.544000] [TTM] Zone  kernel: Used memory at exit: 0 kiB
>>> [   48.612000] [TTM] Zone   dma32: Used memory at exit: 0 kiB
>>> [   48.676000] [drm] radeon: ttm finalized
>>> [   48.724000] [drm] Forcing AGP to PCI mode
>>>         Starting File System Check on /d[   48.872000] [drm]
>>> Generation 2 PCI interface, using max accessible memory
>>> ev/...2-638b-4a0[   48.968000] radeon 0000:80:00.0: VRAM: 128M
>>> 0xFFFFFFFFC0000000 - 0xFFFFFFFFC7FFFFFF (128M used)
>>> c-be55-7444e126d[   49.088000] radeon 0000:80:00.0: GTT: 512M
>>> 0xFFFFFFFFA0000000 - 0xFFFFFFFFBFFFFFFF
>>> 283...
>>> [   49.196000] [drm] Detected VRAM RAM=128M, BAR=128M
>>> [   49.264000] [drm] RAM width 128bits DDR
>>> [   49.328000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
>>> [   49412000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
>>> [   49.492000] [TTM] Initializing pool allocator
>>> [   49.492000] [drm] radeon: 128M of VRAM memory ready
>>> [   49.492000] [drm] radeon: 512M of GTT memory ready.
>>> [   49.492000] [drm] GART: num cpu pages 131072, num gpu pages 131072
>>> [   49.636000] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
>>> [   49.636000] [drm] PCI GART of 512M enabled (table at 0x0000000043300000).
>>> [   49.636000] radeon 0000:80:00.0: WB enabled
>>> [   49.636000] radeon 0000:80:00.0: fence driver on ring 0 use gpu
>>> addr 0xffffffffa0000000 and cpu addr 0x000000007d239000
>>> [   49.636000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>>> [   49.636000] [drm] Driver supports precise vblank timestamp query.
>>> [   49.636000] [drm] radeon: irq initialized.
>>> [   49.780000] [drm] radeon: ring at 0xFFFFFFFFA0001000
>>> [   49.972000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
>>> failed (scratch(0x15E4)=0xCAFEDEAD)
>>> [   49.976000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
>>> working (-22).
>>> [   49.976000] radeon 0000:80:00.0: failed initializing CP (-22).
>>> [   49.976000] radeon 0000:80:00.0: Disabling GPU acceleration
>>> [   50.168000] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle
>>> timeout, shutting down CP.
>>> [   50.280000] [drm] radeon: cp finalized
>>> [   50.592000] [drm] Radeon Display Connectors
>>> [   50.592000] [drm] Connector 0:
>>> [   50.592000] [drm]   VGA-1
>>> [   50.592000] [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
>>> [   50.592000] [drm]   Encoders:
>>> [   50.592000] [drm]     CRT1: INTERNAL_DAC1
>>> [   50.592000] [drm] Connector 1:
>>> [   50.592000] [drm]   DVI-I-1
>>> [   50.592000] [drm]   HPD1
>>> [   50.592000] [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
>>> [   50.592000] [drm]   Encoders:
>>> [   50.592000] [drm]     CRT2: INTERNAL_DAC2
>>> [   50.592000] [drm]     DFP1: INTERNAL_TMDS1
>>> [   50.608000] radeon 0000:80:00.0: No connectors reported connected with modes
>>> [   50.608000] [drm] Cannot find any crtc or sizes - going 1024x768
>>> [   50.828000] [drm] fb mappable at 0xFFFFFFFFC0040000
>>> [   50.828000] [drm] vram apper at 0xFFFFFFFFC0000000
>>> [   50.828000] [drm] size 3145728
>>> [   50.828000] [drm] fb depth is 24
>>> [   50.828000] [drm]    pitch is 4096
>>> [   51.848000] Console: switching to colour frame buffer device 128x48
>>> [   52.080000] radeon 0000:80:00.0: fb0: radeondrmfb frame buffer device
>>> [   52172000] [drm] Initialized radeon 2.43.0 20080528 for
>>> 0000:80:00.0 on minor 0
>>> 
>>> NVIDIA QUADRO MXR
>>> [   51.880000] nouveau 0000:80:00.0: enabling SERR and PARITY (0007 -> 0147)
>>> [   52.044000] nouveau 0000:80:00.0: NVIDIA NV11 (011300a1)
>>> [   52.364000] nouveau 0000:80:00.0: bios: version 03.11.01.24.00
>>> [   52.488000] nouveau 0000:80:00.0: putting AGP V2 device into 4x mode
>>> [   52.592000] nouveau 0000:80:00.0: putting AGP V2 device into 4x mode
>>> [   52.668000] nouveau 0000:80:00.0: tmr: unknown input clock freq
>>> [   52.740000] nouveau 0000:80:00.0: fb: 32 MiB SDRAM
>>> [   52.844000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
>>> [   52.920000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
>>> [   52.920000] [TTM] Initializing pool allocator
>>> [   52.928000] nouveau 0000:80:00.0: DRM: VRAM: 31 MiB
>>> [   52.928000] nouveau 0000:80:00.0: DRM: GART: 512 MiB
>>> [   52.928000] nouveau 0000:80:00.0: DRM: BMP version 5.20
>>> [   52.928000] nouveau 0000:80:00.0: DRM: No useful DCB data in VBIOS
>>> [   52.928000] nouveau 0000:80:00.0: DRM: Adaptor not initialised,
>>> running VBIOS init tables.
>>> [   53.016000] nouveau 0000:80:00.0: DRM: Saving VGA fonts
>>> [   53.336000] nouveau 0000:80:00.0: DRM: No useful DCB data in VBIOS
>>> [   53.336000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>>> [   53.336000] [drm] Driver supports precise vblank timestamp query.
>>> [   53.336000] nouveau 0000:80:00.0: DRM: 0xABA2: Parsing digital
>>> output script table
>>> [   53.920000] nouveau 0000:80:00.0: DRM: MM: using M2MF for buffer copies
>>> [   54.144000] nouveau 0000:80:00.0: DRM: allocated 1920x1200 fb:
>>> 0x8000, bo 000000007cee1000
>>> [   54.276000] nouveau 0000:80:00.0: DRM: 0xABCE: Parsing digital
>>> output script table
>>> [   54.312000] Console: switching to colour frame buffer device 240x75
>>> [   54.388000] nouveau 0000:80:00.0: DRM: GPU lockup - switching to
>>> software fbcon
>>> [   54.684000] nouveau 0000:80:00.0: fb0: nouveaufb frame buffer device
>>> [   54.784000] [drm] Initialized nouveau 1.3.1 20120801 for
>>> 0000:80:00.0 on minor 0
>>> _______________________________________________
>>> Nouveau mailing list
>>> Nouveau@lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/nouveau
> --
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--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:38:39 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.openrisc,gmane.linux.ports.sh.devel
Subject: [PATCH V2 02/30] Include generic parity.h in some architectures'
 bitops.h
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Cc: linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org,
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	linux-xtensa@linux-xtensa.org
To: Vineet Gupta <vgupta@synopsys.com>,
	Russell King <linux@arm.linux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Haavard Skinnemoen <hskinnemoen@gmail.com>,
	Hans-Christian Egtvedt <egtvedt@samfundet.no>,
	Mark Salter <msalter@redhat.com>,
	Aurelien Jacquiot <a-jacquiot@ti.com>,
	Mikael Starvik <starvik@axis.com>,
	Jesper Nilsson <jesper.nilsson@axis.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Richard Kuo <rkuo@codeaurora.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	James Hogan <james.hogan@imgtec.com>,
	David Howells <dhowells@redhat.com>,
	Koichi Yasutake <yasutake.koichi@jp.panasonic.com>,
	Jonas Bonn <jonas@southpole.se>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Rich Felker <dalias@libc.org>,
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From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>

Use the generic version
---
  arch/arc/include/asm/bitops.h      | 1 +
  arch/arm/include/asm/bitops.h      | 1 +
  arch/arm64/include/asm/bitops.h    | 1 +
  arch/avr32/include/asm/bitops.h    | 1 +
  arch/c6x/include/asm/bitops.h      | 1 +
  arch/cris/include/asm/bitops.h     | 1 +
  arch/frv/include/asm/bitops.h      | 1 +
  arch/h8300/include/asm/bitops.h    | 1 +
  arch/hexagon/include/asm/bitops.h  | 1 +
  arch/m32r/include/asm/bitops.h     | 1 +
  arch/m68k/include/asm/bitops.h     | 1 +
  arch/metag/include/asm/bitops.h    | 1 +
  arch/mn10300/include/asm/bitops.h  | 1 +
  arch/openrisc/include/asm/bitops.h | 1 +
  arch/parisc/include/asm/bitops.h   | 1 +
  arch/s390/include/asm/bitops.h     | 1 +
  arch/sh/include/asm/bitops.h       | 1 +
  arch/xtensa/include/asm/bitops.h   | 1 +
  18 files changed, 18 insertions(+)

diff --git a/arch/arc/include/asm/bitops.h b/arch/arc/include/asm/bitops.h
index 0352fb8..7967e47 100644
--- a/arch/arc/include/asm/bitops.h
+++ b/arch/arc/include/asm/bitops.h
@@ -370,6 +370,7 @@ static inline __attribute__ ((const)) int 
__ffs(unsigned long x)
  #define ffz(x)    __ffs(~(x))

  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/fls64.h>
  #include <asm-generic/bitops/sched.h>
  #include <asm-generic/bitops/lock.h>
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h
index e943e6c..99f28a6 100644
--- a/arch/arm/include/asm/bitops.h
+++ b/arch/arm/include/asm/bitops.h
@@ -313,6 +313,7 @@ static inline unsigned long __ffs(unsigned long x)

  #include <asm-generic/bitops/sched.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/lock.h>

  #ifdef __ARMEB__
diff --git a/arch/arm64/include/asm/bitops.h 
b/arch/arm64/include/asm/bitops.h
index 9c19594..eac4965 100644
--- a/arch/arm64/include/asm/bitops.h
+++ b/arch/arm64/include/asm/bitops.h
@@ -44,6 +44,7 @@ extern int test_and_change_bit(int nr, volatile 
unsigned long *p);

  #include <asm-generic/bitops/sched.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/lock.h>

  #include <asm-generic/bitops/non-atomic.h>
diff --git a/arch/avr32/include/asm/bitops.h 
b/arch/avr32/include/asm/bitops.h
index 910d537..9f4a2ce 100644
--- a/arch/avr32/include/asm/bitops.h
+++ b/arch/avr32/include/asm/bitops.h
@@ -298,6 +298,7 @@ static inline int ffs(unsigned long word)
  #include <asm-generic/bitops/fls64.h>
  #include <asm-generic/bitops/sched.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/lock.h>

  extern unsigned long find_next_zero_bit_le(const void *addr,
diff --git a/arch/c6x/include/asm/bitops.h b/arch/c6x/include/asm/bitops.h
index f0ab012..94eb0d1 100644
--- a/arch/c6x/include/asm/bitops.h
+++ b/arch/c6x/include/asm/bitops.h
@@ -87,6 +87,7 @@ static inline int ffs(int x)

  #include <asm-generic/bitops/sched.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/lock.h>

  #include <asm-generic/bitops/atomic.h>
diff --git a/arch/cris/include/asm/bitops.h b/arch/cris/include/asm/bitops.h
index 8062cb5..06bc246 100644
--- a/arch/cris/include/asm/bitops.h
+++ b/arch/cris/include/asm/bitops.h
@@ -36,6 +36,7 @@
  #include <asm-generic/bitops/__fls.h>
  #include <asm-generic/bitops/fls64.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/find.h>
  #include <asm-generic/bitops/lock.h>

diff --git a/arch/frv/include/asm/bitops.h b/arch/frv/include/asm/bitops.h
index 0df8e95..f2a7ee8 100644
--- a/arch/frv/include/asm/bitops.h
+++ b/arch/frv/include/asm/bitops.h
@@ -314,6 +314,7 @@ int __ilog2_u64(u64 n)

  #include <asm-generic/bitops/sched.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/lock.h>

  #include <asm-generic/bitops/le.h>
diff --git a/arch/h8300/include/asm/bitops.h 
b/arch/h8300/include/asm/bitops.h
index 05999ab..e392db2 100644
--- a/arch/h8300/include/asm/bitops.h
+++ b/arch/h8300/include/asm/bitops.h
@@ -172,6 +172,7 @@ static inline unsigned long __ffs(unsigned long word)
  #include <asm-generic/bitops/find.h>
  #include <asm-generic/bitops/sched.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/lock.h>
  #include <asm-generic/bitops/le.h>
  #include <asm-generic/bitops/ext2-atomic.h>
diff --git a/arch/hexagon/include/asm/bitops.h 
b/arch/hexagon/include/asm/bitops.h
index 5e4a59b..2df614e 100644
--- a/arch/hexagon/include/asm/bitops.h
+++ b/arch/hexagon/include/asm/bitops.h
@@ -290,6 +290,7 @@ static inline unsigned long __fls(unsigned long word)
  #include <asm-generic/bitops/fls64.h>
  #include <asm-generic/bitops/sched.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>

  #include <asm-generic/bitops/le.h>
  #include <asm-generic/bitops/ext2-atomic.h>
diff --git a/arch/m32r/include/asm/bitops.h b/arch/m32r/include/asm/bitops.h
index 86ba2b4..e3cf46b 100644
--- a/arch/m32r/include/asm/bitops.h
+++ b/arch/m32r/include/asm/bitops.h
@@ -259,6 +259,7 @@ static __inline__ int test_and_change_bit(int nr, 
volatile void * addr)
  #include <asm-generic/bitops/find.h>
  #include <asm-generic/bitops/ffs.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/lock.h>

  #endif /* __KERNEL__ */
diff --git a/arch/m68k/include/asm/bitops.h b/arch/m68k/include/asm/bitops.h
index b4a9b0d..fd673ea 100644
--- a/arch/m68k/include/asm/bitops.h
+++ b/arch/m68k/include/asm/bitops.h
@@ -519,6 +519,7 @@ static inline int __fls(int x)
  #include <asm-generic/bitops/fls64.h>
  #include <asm-generic/bitops/sched.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/lock.h>
  #endif /* __KERNEL__ */

diff --git a/arch/metag/include/asm/bitops.h 
b/arch/metag/include/asm/bitops.h
index 2671134..ad13087 100644
--- a/arch/metag/include/asm/bitops.h
+++ b/arch/metag/include/asm/bitops.h
@@ -118,6 +118,7 @@ static inline int test_and_change_bit(unsigned int bit,
  #include <asm-generic/bitops/__fls.h>
  #include <asm-generic/bitops/fls64.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/lock.h>
  #include <asm-generic/bitops/sched.h>
  #include <asm-generic/bitops/le.h>
diff --git a/arch/mn10300/include/asm/bitops.h 
b/arch/mn10300/include/asm/bitops.h
index fe6f8e2..60761b7 100644
--- a/arch/mn10300/include/asm/bitops.h
+++ b/arch/mn10300/include/asm/bitops.h
@@ -225,6 +225,7 @@ int ffs(int x)
  #include <asm-generic/bitops/find.h>
  #include <asm-generic/bitops/sched.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/ext2-atomic-setbit.h>
  #include <asm-generic/bitops/le.h>

diff --git a/arch/openrisc/include/asm/bitops.h 
b/arch/openrisc/include/asm/bitops.h
index 3003cda..8c97642 100644
--- a/arch/openrisc/include/asm/bitops.h
+++ b/arch/openrisc/include/asm/bitops.h
@@ -43,6 +43,7 @@
  #include <asm-generic/bitops/sched.h>
  #include <asm/bitops/ffs.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/lock.h>

  #include <asm-generic/bitops/atomic.h>
diff --git a/arch/parisc/include/asm/bitops.h 
b/arch/parisc/include/asm/bitops.h
index 3f9406d..867ba10 100644
--- a/arch/parisc/include/asm/bitops.h
+++ b/arch/parisc/include/asm/bitops.h
@@ -211,6 +211,7 @@ static __inline__ int fls(int x)
  #include <asm-generic/bitops/__fls.h>
  #include <asm-generic/bitops/fls64.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/lock.h>
  #include <asm-generic/bitops/sched.h>

diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 8043f10..198eead 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -460,6 +460,7 @@ static inline int fls(int word)
  #include <asm-generic/bitops/ffz.h>
  #include <asm-generic/bitops/find.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/sched.h>
  #include <asm-generic/bitops/le.h>
  #include <asm-generic/bitops/ext2-atomic-setbit.h>
diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h
index fc8e652..4bf0c35 100644
--- a/arch/sh/include/asm/bitops.h
+++ b/arch/sh/include/asm/bitops.h
@@ -86,6 +86,7 @@ static inline unsigned long ffz(unsigned long word)
  #include <asm-generic/bitops/find.h>
  #include <asm-generic/bitops/ffs.h>
  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/lock.h>
  #include <asm-generic/bitops/sched.h>
  #include <asm-generic/bitops/le.h>
diff --git a/arch/xtensa/include/asm/bitops.h 
b/arch/xtensa/include/asm/bitops.h
index 3f44fa2..981fa83 100644
--- a/arch/xtensa/include/asm/bitops.h
+++ b/arch/xtensa/include/asm/bitops.h
@@ -229,6 +229,7 @@ test_and_change_bit(unsigned int bit, volatile 
unsigned long *p)
  #include <asm-generic/bitops/ext2-atomic-setbit.h>

  #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
  #include <asm-generic/bitops/lock.h>
  #include <asm-generic/bitops/sched.h>

-- 
2.5.0

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From: Mikulas Patocka <mpatocka@redhat.com>
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Hi

The patch "parisc: Use generic extable search and sort routines" makes the 
kernel unable to load any modules. It fails with:

module unix: Unknown relocation: 9
modprobe: FATAL: Error inserting unix (/lib/modules/4.6.0-rc2/kernel/net/unix/unix.ko): Invalid module format

When I revert the patch, the kernel 4.6-rc2 boots fine.

Apparently, the function apply_relocate_add in arch/parisc/kernel/module.c 
doesn't handle the new relocation type.

Mikulas
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On Tue, 5 Apr 2016, Mikulas Patocka wrote:

> Hi
> 
> The patch "parisc: Use generic extable search and sort routines" makes the 
> kernel unable to load any modules. It fails with:
> 
> module unix: Unknown relocation: 9
> modprobe: FATAL: Error inserting unix (/lib/modules/4.6.0-rc2/kernel/net/unix/unix.ko): Invalid module format
> 
> When I revert the patch, the kernel 4.6-rc2 boots fine.
> 
> Apparently, the function apply_relocate_add in arch/parisc/kernel/module.c 
> doesn't handle the new relocation type.
> 
> Mikulas

BTW. I'm using hppa64 binutils 2.21 to build the kernel. It generates the 
R_PARISC_PCREL32 relocation that the kernel module loader doesn't handle:

RELOCATION RECORDS FOR [__ex_table]:
OFFSET           TYPE              VALUE
0000000000000000 R_PARISC_PCREL32  .text.unix_ioctl+0x0000000000000064
0000000000000004 R_PARISC_PCREL32  fixup_put_user_skip_1+0x0000000000000008
0000000000000008 R_PARISC_PCREL32  .text.unix_ioctl+0x00000000000000a8
000000000000000c R_PARISC_PCREL32  fixup_put_user_skip_1+0x0000000000000008
0000000000000010 R_PARISC_PCREL32  .text.unix_ioctl+0x00000000000000b4
0000000000000014 R_PARISC_PCREL32  fixup_put_user_skip_1+0x0000000000000008
0000000000000018 R_PARISC_PCREL32  .text.unix_ioctl+0x00000000000000c0
000000000000001c R_PARISC_PCREL32  fixup_put_user_skip_1+0x0000000000000008

Mikulas
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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: Re: Kernel Panic on 4 cores hp c8000
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On Thu, 31 Mar 2016, Simone Mannori wrote:

> > I think Debian 5 will not even install on the C8000..
> >
> 
> Correct: the boot DVD hang after a while.

I installed Debian 5 on the C8000 (using tftp netboot, not DVD) some times 
ago.

It required PCI serial card (because the Debian 5 kernel doesn't recognize 
the built-in serial ports) and PCI network card (the Debian 5 kernel can't 
handle the built-in E1000 network card due to non-standard checksum in the 
EEPROM).

Mikulas
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This is a multi-part message in MIME format.
--------------020504010304000507010802
Content-Type: text/plain; charset=windows-1252
Content-Transfer-Encoding: 7bit

On 05.04.2016 19:36, Mikulas Patocka wrote:
> On Tue, 5 Apr 2016, Mikulas Patocka wrote:
> 
>> Hi
>>
>> The patch "parisc: Use generic extable search and sort routines" makes the 
>> kernel unable to load any modules. It fails with:
>>
>> module unix: Unknown relocation: 9
>> modprobe: FATAL: Error inserting unix (/lib/modules/4.6.0-rc2/kernel/net/unix/unix.ko): Invalid module format
>>
>> When I revert the patch, the kernel 4.6-rc2 boots fine.
>>
>> Apparently, the function apply_relocate_add in arch/parisc/kernel/module.c 
>> doesn't handle the new relocation type.
>>
>> Mikulas
> 
> BTW. I'm using hppa64 binutils 2.21 to build the kernel. It generates the 
> R_PARISC_PCREL32 relocation that the kernel module loader doesn't handle:


Can you try attached patch (untested) ?

Helge

 
> RELOCATION RECORDS FOR [__ex_table]:
> OFFSET           TYPE              VALUE
> 0000000000000000 R_PARISC_PCREL32  .text.unix_ioctl+0x0000000000000064
> 0000000000000004 R_PARISC_PCREL32  fixup_put_user_skip_1+0x0000000000000008
> 0000000000000008 R_PARISC_PCREL32  .text.unix_ioctl+0x00000000000000a8
> 000000000000000c R_PARISC_PCREL32  fixup_put_user_skip_1+0x0000000000000008
> 0000000000000010 R_PARISC_PCREL32  .text.unix_ioctl+0x00000000000000b4
> 0000000000000014 R_PARISC_PCREL32  fixup_put_user_skip_1+0x0000000000000008
> 0000000000000018 R_PARISC_PCREL32  .text.unix_ioctl+0x00000000000000c0
> 000000000000001c R_PARISC_PCREL32  fixup_put_user_skip_1+0x0000000000000008


--------------020504010304000507010802
Content-Type: text/x-diff;
 name="module.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="module.patch"

diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index b9d75d9..f3bfd6a 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -660,6 +660,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			}
 			*loc = (*loc & ~0x3ff1ffd) | reassemble_22(val);
 			break;
+		case R_PARISC_PCREL32:
+			val -= (uint32_t) loc;
+			*loc = val;
+			break;
 
 		default:
 			printk(KERN_ERR "module %s: Unknown relocation: %u\n",

--------------020504010304000507010802--
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On 05.04.2016 20:54, Mikulas Patocka wrote:
> On Thu, 31 Mar 2016, Simone Mannori wrote:
>>> I think Debian 5 will not even install on the C8000..
>>
>> Correct: the boot DVD hang after a while.
> 
> I installed Debian 5 on the C8000 (using tftp netboot, not DVD) some times 
> ago.
> 
> It required PCI serial card (because the Debian 5 kernel doesn't recognize 
> the built-in serial ports) and PCI network card (the Debian 5 kernel can't 
> handle the built-in E1000 network card due to non-standard checksum in the 
> EEPROM).

... and the debian 5 kernel was most likely *very* unstable on that machine ? :-)

Helge
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On Tue, 5 Apr 2016, Helge Deller wrote:

> On 05.04.2016 19:36, Mikulas Patocka wrote:
> > On Tue, 5 Apr 2016, Mikulas Patocka wrote:
> > 
> >> Hi
> >>
> >> The patch "parisc: Use generic extable search and sort routines" makes the 
> >> kernel unable to load any modules. It fails with:
> >>
> >> module unix: Unknown relocation: 9
> >> modprobe: FATAL: Error inserting unix (/lib/modules/4.6.0-rc2/kernel/net/unix/unix.ko): Invalid module format
> >>
> >> When I revert the patch, the kernel 4.6-rc2 boots fine.
> >>
> >> Apparently, the function apply_relocate_add in arch/parisc/kernel/module.c 
> >> doesn't handle the new relocation type.
> >>
> >> Mikulas
> > 
> > BTW. I'm using hppa64 binutils 2.21 to build the kernel. It generates the 
> > R_PARISC_PCREL32 relocation that the kernel module loader doesn't handle:
> 
> 
> Can you try attached patch (untested) ?
> 
> Helge

I tried a similar patch, the system booted fine ... but then I discovered 
that the system boots fine no matter what value is written to *loc.

Apparently, none of the modules trigger any exceptions in my 
configuration.

I'll have to create a test module that triggers some exception.

Mikulas
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On Tue, 5 Apr 2016, Helge Deller wrote:

> On 05.04.2016 20:54, Mikulas Patocka wrote:
> > On Thu, 31 Mar 2016, Simone Mannori wrote:
> >>> I think Debian 5 will not even install on the C8000..
> >>
> >> Correct: the boot DVD hang after a while.
> > 
> > I installed Debian 5 on the C8000 (using tftp netboot, not DVD) some times 
> > ago.
> > 
> > It required PCI serial card (because the Debian 5 kernel doesn't recognize 
> > the built-in serial ports) and PCI network card (the Debian 5 kernel can't 
> > handle the built-in E1000 network card due to non-standard checksum in the 
> > EEPROM).
> 
> ... and the debian 5 kernel was most likely *very* unstable on that machine ? :-)
> 
> Helge

Yes, it was very unstable. It took long time for the parisc port to 
stabilize.

Recently, I've got some gcc crashes when running kernel compilation in 
parallel with the LVM2 testsuite, so there may still be some stability 
bugs.

Mikulas
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On 2016-04-05 2:54 PM, Helge Deller wrote:
> +		case R_PARISC_PCREL32:
> +			val -= (uint32_t) loc;
> +			*loc = val;
> +			break;
PCREL32 for a 64-bit application is "symbol - PC - 8 + addend".

Dave

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On 2016-04-05 4:18 PM, Mikulas Patocka wrote:
>
> On Tue, 5 Apr 2016, Helge Deller wrote:
>
>> On 05.04.2016 20:54, Mikulas Patocka wrote:
>>> On Thu, 31 Mar 2016, Simone Mannori wrote:
>>>>> I think Debian 5 will not even install on the C8000..
>>>> Correct: the boot DVD hang after a while.
>>> I installed Debian 5 on the C8000 (using tftp netboot, not DVD) some times
>>> ago.
>>>
>>> It required PCI serial card (because the Debian 5 kernel doesn't recognize
>>> the built-in serial ports) and PCI network card (the Debian 5 kernel can't
>>> handle the built-in E1000 network card due to non-standard checksum in the
>>> EEPROM).
>> ... and the debian 5 kernel was most likely *very* unstable on that machine ? :-)
>>
>> Helge
> Yes, it was very unstable. It took long time for the parisc port to
> stabilize.
I would say it took a change in the way the port is maintained. Helge 
and I communicate
closely.  I look at the buildd logs on a regular basis and try to push 
fixes for gcc problems
aggressively.  This causes some instability but I don't see any other 
choice.  We have also
pushed stuff to glibc.  More needs to be done there but the Debian patch 
set is reduced.
>
> Recently, I've got some gcc crashes when running kernel compilation in
> parallel with the LVM2 testsuite, so there may still be some stability
> bugs.
>
The LVM2 builds on Debian have been generally successful:
https://buildd.debian.org/status/logs.php?pkg=lvm2&arch=hppa
However, it looks as if testsuite isn't being run.

If you find something that is reproducible, please send along.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>

Use the generic version

Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
---
 arch/arc/include/asm/bitops.h      | 1 +
 arch/arm/include/asm/bitops.h      | 1 +
 arch/arm64/include/asm/bitops.h    | 1 +
 arch/avr32/include/asm/bitops.h    | 1 +
 arch/c6x/include/asm/bitops.h      | 1 +
 arch/cris/include/asm/bitops.h     | 1 +
 arch/frv/include/asm/bitops.h      | 1 +
 arch/h8300/include/asm/bitops.h    | 1 +
 arch/hexagon/include/asm/bitops.h  | 1 +
 arch/m32r/include/asm/bitops.h     | 1 +
 arch/m68k/include/asm/bitops.h     | 1 +
 arch/metag/include/asm/bitops.h    | 1 +
 arch/mn10300/include/asm/bitops.h  | 1 +
 arch/openrisc/include/asm/bitops.h | 1 +
 arch/parisc/include/asm/bitops.h   | 1 +
 arch/s390/include/asm/bitops.h     | 1 +
 arch/sh/include/asm/bitops.h       | 1 +
 arch/xtensa/include/asm/bitops.h   | 1 +
 18 files changed, 18 insertions(+)

diff --git a/arch/arc/include/asm/bitops.h b/arch/arc/include/asm/bitops.h
index 0352fb8..7967e47 100644
--- a/arch/arc/include/asm/bitops.h
+++ b/arch/arc/include/asm/bitops.h
@@ -370,6 +370,7 @@ static inline __attribute__ ((const)) int __ffs(unsigned long x)
 #define ffz(x)	__ffs(~(x))
 
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/lock.h>
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h
index e943e6c..99f28a6 100644
--- a/arch/arm/include/asm/bitops.h
+++ b/arch/arm/include/asm/bitops.h
@@ -313,6 +313,7 @@ static inline unsigned long __ffs(unsigned long x)
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #ifdef __ARMEB__
diff --git a/arch/arm64/include/asm/bitops.h b/arch/arm64/include/asm/bitops.h
index 9c19594..eac4965 100644
--- a/arch/arm64/include/asm/bitops.h
+++ b/arch/arm64/include/asm/bitops.h
@@ -44,6 +44,7 @@ extern int test_and_change_bit(int nr, volatile unsigned long *p);
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/non-atomic.h>
diff --git a/arch/avr32/include/asm/bitops.h b/arch/avr32/include/asm/bitops.h
index 910d537..9f4a2ce 100644
--- a/arch/avr32/include/asm/bitops.h
+++ b/arch/avr32/include/asm/bitops.h
@@ -298,6 +298,7 @@ static inline int ffs(unsigned long word)
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 extern unsigned long find_next_zero_bit_le(const void *addr,
diff --git a/arch/c6x/include/asm/bitops.h b/arch/c6x/include/asm/bitops.h
index f0ab012..94eb0d1 100644
--- a/arch/c6x/include/asm/bitops.h
+++ b/arch/c6x/include/asm/bitops.h
@@ -87,6 +87,7 @@ static inline int ffs(int x)
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/atomic.h>
diff --git a/arch/cris/include/asm/bitops.h b/arch/cris/include/asm/bitops.h
index 8062cb5..06bc246 100644
--- a/arch/cris/include/asm/bitops.h
+++ b/arch/cris/include/asm/bitops.h
@@ -36,6 +36,7 @@
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/lock.h>
 
diff --git a/arch/frv/include/asm/bitops.h b/arch/frv/include/asm/bitops.h
index 0df8e95..f2a7ee8 100644
--- a/arch/frv/include/asm/bitops.h
+++ b/arch/frv/include/asm/bitops.h
@@ -314,6 +314,7 @@ int __ilog2_u64(u64 n)
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/le.h>
diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h
index 05999ab..e392db2 100644
--- a/arch/h8300/include/asm/bitops.h
+++ b/arch/h8300/include/asm/bitops.h
@@ -172,6 +172,7 @@ static inline unsigned long __ffs(unsigned long word)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic.h>
diff --git a/arch/hexagon/include/asm/bitops.h b/arch/hexagon/include/asm/bitops.h
index 5e4a59b..2df614e 100644
--- a/arch/hexagon/include/asm/bitops.h
+++ b/arch/hexagon/include/asm/bitops.h
@@ -290,6 +290,7 @@ static inline unsigned long __fls(unsigned long word)
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic.h>
diff --git a/arch/m32r/include/asm/bitops.h b/arch/m32r/include/asm/bitops.h
index 86ba2b4..e3cf46b 100644
--- a/arch/m32r/include/asm/bitops.h
+++ b/arch/m32r/include/asm/bitops.h
@@ -259,6 +259,7 @@ static __inline__ int test_and_change_bit(int nr, volatile void * addr)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #endif /* __KERNEL__ */
diff --git a/arch/m68k/include/asm/bitops.h b/arch/m68k/include/asm/bitops.h
index b4a9b0d..fd673ea 100644
--- a/arch/m68k/include/asm/bitops.h
+++ b/arch/m68k/include/asm/bitops.h
@@ -519,6 +519,7 @@ static inline int __fls(int x)
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #endif /* __KERNEL__ */
 
diff --git a/arch/metag/include/asm/bitops.h b/arch/metag/include/asm/bitops.h
index 2671134..ad13087 100644
--- a/arch/metag/include/asm/bitops.h
+++ b/arch/metag/include/asm/bitops.h
@@ -118,6 +118,7 @@ static inline int test_and_change_bit(unsigned int bit,
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
diff --git a/arch/mn10300/include/asm/bitops.h b/arch/mn10300/include/asm/bitops.h
index fe6f8e2..60761b7 100644
--- a/arch/mn10300/include/asm/bitops.h
+++ b/arch/mn10300/include/asm/bitops.h
@@ -225,6 +225,7 @@ int ffs(int x)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
 #include <asm-generic/bitops/le.h>
 
diff --git a/arch/openrisc/include/asm/bitops.h b/arch/openrisc/include/asm/bitops.h
index 3003cda..8c97642 100644
--- a/arch/openrisc/include/asm/bitops.h
+++ b/arch/openrisc/include/asm/bitops.h
@@ -43,6 +43,7 @@
 #include <asm-generic/bitops/sched.h>
 #include <asm/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/atomic.h>
diff --git a/arch/parisc/include/asm/bitops.h b/arch/parisc/include/asm/bitops.h
index 3f9406d..867ba10 100644
--- a/arch/parisc/include/asm/bitops.h
+++ b/arch/parisc/include/asm/bitops.h
@@ -211,6 +211,7 @@ static __inline__ int fls(int x)
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 8043f10..198eead 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -460,6 +460,7 @@ static inline int fls(int word)
 #include <asm-generic/bitops/ffz.h>
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h
index fc8e652..4bf0c35 100644
--- a/arch/sh/include/asm/bitops.h
+++ b/arch/sh/include/asm/bitops.h
@@ -86,6 +86,7 @@ static inline unsigned long ffz(unsigned long word)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
diff --git a/arch/xtensa/include/asm/bitops.h b/arch/xtensa/include/asm/bitops.h
index 3f44fa2..981fa83 100644
--- a/arch/xtensa/include/asm/bitops.h
+++ b/arch/xtensa/include/asm/bitops.h
@@ -229,6 +229,7 @@ test_and_change_bit(unsigned int bit, volatile unsigned long *p)
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
 
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 
-- 
2.5.0

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--185206533-423949954-1459952110=:30369
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On Tue, 5 Apr 2016, Mikulas Patocka wrote:

> 
> 
> On Tue, 5 Apr 2016, Helge Deller wrote:
> 
> > On 05.04.2016 19:36, Mikulas Patocka wrote:
> > > On Tue, 5 Apr 2016, Mikulas Patocka wrote:
> > > 
> > >> Hi
> > >>
> > >> The patch "parisc: Use generic extable search and sort routines" makes the 
> > >> kernel unable to load any modules. It fails with:
> > >>
> > >> module unix: Unknown relocation: 9
> > >> modprobe: FATAL: Error inserting unix (/lib/modules/4.6.0-rc2/kernel/net/unix/unix.ko): Invalid module format
> > >>
> > >> When I revert the patch, the kernel 4.6-rc2 boots fine.
> > >>
> > >> Apparently, the function apply_relocate_add in arch/parisc/kernel/module.c 
> > >> doesn't handle the new relocation type.
> > >>
> > >> Mikulas
> > > 
> > > BTW. I'm using hppa64 binutils 2.21 to build the kernel. It generates the 
> > > R_PARISC_PCREL32 relocation that the kernel module loader doesn't handle:
> > 
> > 
> > Can you try attached patch (untested) ?
> > 
> > Helge
> 
> I tried a similar patch, the system booted fine ... but then I discovered 
> that the system boots fine no matter what value is written to *loc.
> 
> Apparently, none of the modules trigger any exceptions in my 
> configuration.
> 
> I'll have to create a test module that triggers some exception.
> 
> Mikulas

Hmm - it's even more strange.

I created a test kernel module that triggers an exception by using 
get_user with an invalid address (see the attached file exception.tar)

On x86-64 the module loads fine, but on pa-risc it always crashes, even 
with older kernel version (I tried versions 2.6.39, 4.5 and 4.6-rc2 and I 
always get a crash).

When I write a userspace code that triggers a fault in module unix.ko, by 
passing an invalid address to the ioctl syscall, the kernel also crashes.

So, it seems that handling exceptions from modules never worked on 
pa-risc, it was just masked by the fact that exceptions from modules don't 
happen during normal use.

Mikulas


/* this will crash pa-risc kernel if it is compiled with CONFIG_UNIX=m */

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>

int main(void)
{
        int s, r;
        s = socket(PF_UNIX, SOCK_STREAM, 0);
        if (s == -1) perror("socket"), exit(1);
        r = ioctl(s, SIOCOUTQ, 0x124);
        if (r == -1) perror("ioctl"), exit(1);
        return 0;
}

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On 06.04.2016 16:30, Mikulas Patocka wrote:
>>>>> The patch "parisc: Use generic extable search and sort routines" makes the 
>>>>> kernel unable to load any modules. It fails with:
>>>>>
>>>>> module unix: Unknown relocation: 9
>>>>> modprobe: FATAL: Error inserting unix (/lib/modules/4.6.0-rc2/kernel/net/unix/unix.ko): Invalid module format
>>>>>
>>>>> When I revert the patch, the kernel 4.6-rc2 boots fine.
>>>>>
>>>>> Apparently, the function apply_relocate_add in arch/parisc/kernel/module.c 
>>>>> doesn't handle the new relocation type.
>>>>>
>>>>> Mikulas
>>>>
>>>> BTW. I'm using hppa64 binutils 2.21 to build the kernel. It generates the 
>>>> R_PARISC_PCREL32 relocation that the kernel module loader doesn't handle:
>>>
>>> Can you try attached patch (untested) ?
>>>
>>> Helge
>>
>> I tried a similar patch, the system booted fine ... but then I discovered 
>> that the system boots fine no matter what value is written to *loc.
>>
>> Apparently, none of the modules trigger any exceptions in my 
>> configuration.
>>
>> I'll have to create a test module that triggers some exception.
>>
>> Mikulas
> 
> Hmm - it's even more strange.
> 
> I created a test kernel module that triggers an exception by using 
> get_user with an invalid address (see the attached file exception.tar)

I see there is a kernel module <sourcetree>/lib/test_user_copy.c as well.
It seems to crash too.
 
> On x86-64 the module loads fine, but on pa-risc it always crashes, even 
> with older kernel version (I tried versions 2.6.39, 4.5 and 4.6-rc2 and I 
> always get a crash).

I don't fully trust the 4.5 kernel yet.
I was working the last few days on trying to fix the FTRACE functions, but
am seeing strange crashes too.
Any chance that you can try 4.4-stable, just to make sure ?

> When I write a userspace code that triggers a fault in module unix.ko, by 
> passing an invalid address to the ioctl syscall, the kernel also crashes.
> 
> So, it seems that handling exceptions from modules never worked on 
> pa-risc, it was just masked by the fact that exceptions from modules don't 
> happen during normal use.

I'll try to dig deeper as soon as I find time.

Helge
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This is a multi-part message in MIME format.
--------------080101040304080909040901
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On 06.04.2016 23:44, Helge Deller wrote:
> On 06.04.2016 16:30, Mikulas Patocka wrote:
>>>>>> The patch "parisc: Use generic extable search and sort routines" makes the 
>>>>>> kernel unable to load any modules. It fails with:
>>>>>>
>>>>>> module unix: Unknown relocation: 9
>>>>>> modprobe: FATAL: Error inserting unix (/lib/modules/4.6.0-rc2/kernel/net/unix/unix.ko): Invalid module format
>>>>>>
>>>>>> When I revert the patch, the kernel 4.6-rc2 boots fine.
>>>>>>
>>>>>> Apparently, the function apply_relocate_add in arch/parisc/kernel/module.c 
>>>>>> doesn't handle the new relocation type.

>> Hmm - it's even more strange.
>>
>> I created a test kernel module that triggers an exception by using 
>> get_user with an invalid address (see the attached file exception.tar)
> 
> I see there is a kernel module <sourcetree>/lib/test_user_copy.c as well.
> It seems to crash too.

>> So, it seems that handling exceptions from modules never worked on 
>> pa-risc, it was just masked by the fact that exceptions from modules don't 
>> happen during normal use.

Sadly you seem to be right :-(
I did more testing with the test_user_copy module (with vanilla kernel 4.5 and without the relative extable support).
 
The attached patch fixes most of the issues:
1. Kernel doesn't crash any longer on the "illegal reversed copy_to_user" testcase.
2. It fixes the R_PARISC_DIR64 ex_table entries to create absolute addresses for the exceptions in the module instead of trying to refer to function pointers.

BUT:
It then crashes afterwards.
What happens is that the exception fixup handler now jumps from the module directly to fixup_get_user_skip_1() in the kernel code.
In arch/parisc/lib/fixup.S we have:
ENTRY(fixup_get_user_skip_1)
        get_fault_ip %r1,%r8
....
which expands to:
0000000040a5aab0 <fixup_get_user_skip_1>:
    40a5aab0:   2b 76 50 00     addil L%6c800,dp,r1
    40a5aab4:   50 21 02 f0     ldd 178(r1),r1
    40a5aab8:   03 c0 08 a8     mfctl tr6,r8
    40a5aabc:   49 08 00 28     ldw 14(r8),r8

and the kernel then crashes at 40a5aab4 because dp still has the value of the module and not of the kernel. 

I wonder how we should avoid that.

Maybe the easiest way is to not inline the get_user()/put_user() code in modules, but instead jumping into the kernel and call functions like
- get_user_1(), get_user_2(), get_user_4()...
and so on.

What shall we do?
- Skip the exception handling in modules (as mentioned above by get_user_1()) with the drawback of less performance due to additional calls,
- rewrite the exception table code to use function pointers, or  
- rewrite get_fault_ip() macro to temporary set dp to %r0 (if possible at all?),
- other ideas / opinions ?

Helge


FYI, here is my current log while loading the test_copy_user module:

[  289.900000] Non local DIR64 Symbol fixup_get_user_skip_1 loc 00000000020b16a0 val 40a5aab0 points to 0x40a5aab0
[  290.020000] --- local DIR64 Symbol  loc 00000000020b16a8 val 20b32c0 points to 0x20b34e4
[  290.120000] Non local DIR64 Symbol fixup_get_user_skip_1 loc 00000000020b16b0 val 40a5aab0 points to 0x40a5aab0
[  290.240000] --- local DIR64 Symbol  loc 00000000020b16b8 val 20b32c0 points to 0x20b3558
[  290.336000] Non local DIR64 Symbol fixup_put_user_skip_1 loc 00000000020b16c0 val 40a5ab20 points to 0x40a5ab20
[  290.456000] --- local DIR64 Symbol  loc 00000000020b16c8 val 20b32c0 points to 0x20b3564
[  290.552000] Non local DIR64 Symbol fixup_put_user_skip_1 loc 00000000020b16d0 val 40a5ab20 points to 0x40a5ab20
[  290.676000] --- local DIR64 Symbol  loc 00000000020b16d8 val 20b32c0 points to 0x20b3808
[  290.772000] Non local DIR64 Symbol fixup_get_user_skip_1 loc 00000000020b16e0 val 40a5aab0 points to 0x40a5aab0
[  290.892000] --- local DIR64 Symbol  loc 00000000020b16e8 val 20b32c0 points to 0x20b3814
[  290.988000] Non local DIR64 Symbol fixup_get_user_skip_1 loc 00000000020b16f0 val 40a5aab0 points to 0x40a5aab0
[  291.112000] --- local DIR64 Symbol  loc 00000000020b16f8 val 20b32c0 points to 0x20b3898
[  291.208000] Non local DIR64 Symbol fixup_put_user_skip_1 loc 00000000020b1700 val 40a5ab20 points to 0x40a5ab20
[  291.328000] --- local DIR64 Symbol  loc 00000000020b1708 val 20b32c0 points to 0x20b38a4
[  291.424000] Non local DIR64 Symbol fixup_put_user_skip_1 loc 00000000020b1710 val 40a5ab20 points to 0x40a5ab20
[  291.548000] test_user_copy: Testing: legitimate copy_from_user failed
[  291.624000] test_user_copy: FINISHED: result = 0
[  291.680000] test_user_copy: Testing: legitimate copy_to_user failed
[  291.756000] test_user_copy: FINISHED: result = 0
[  291.808000] test_user_copy: Testing: legitimate get_user failed
[  291.880000] test_user_copy: FINISHED: result = 0
[  291.936000] test_user_copy: Testing: legitimate put_user failed
[  292.008000] test_user_copy: FINISHED: result = 0
[  292.064000] test_user_copy: Testing: illegal all-kernel copy_from_user passed
[  292.148000] fault at 0x406d671c ... found !  fixup = 0x406d6844
[  292.220000] test_user_copy: FINISHED: result = 0
[  292.272000] test_user_copy: Testing: illegal reversed copy_from_user passed
[  292.356000] fault at 0x406d671c ... found !  fixup = 0x406d6844
[  292.428000] test_user_copy: FINISHED: result = 0
[  292.484000] test_user_copy: Testing: illegal all-kernel copy_to_user passed
[  292.568000] fault at 0x406d672c ... found !  fixup = 0x406d684c
[  292.640000] test_user_copy: FINISHED: result = 0
[  292.692000] test_user_copy: Testing: illegal reversed copy_to_user passed
[  292.776000] fault at 0x406d671c ... found !  fixup = 0x406d6844
[  292.844000] test_user_copy: FINISHED: result = 0
[  292.900000] test_user_copy: Testing: illegal get_user passed
[  292.968000] fault at 0x020b3814 ... found !  fixup = 0x40a5aab0
[  293.040000] fault at 0x40a5aab4 ... not found !
[  293.096000] Backtrace:
[  293.096000] fault at 0x40223eac ... found !  fixup = 0x40a5aab0
[  293.096000] 
[  293.096000] 
[  293.096000] Kernel Fault: Code=15 regs=00000000b12946a0 (Addr=000000000211d978)
[  293.096000] CPU: 0 PID: 1320 Comm: modprobe Not tainted 4.5.0-64bit+ #290
[  293.096000] task: 00000000b290a700 ti: 00000000b1294000 task.ti: 00000000b1294000
[  293.096000] 
[  293.096000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[  293.096000] PSW: 00001000000001001111110000001111 Not tainted
[  293.096000] r00-03  000000ff0804fc0f 000000000211d800 00000000020b37f4 00000000b12945b0
[  293.096000] r04-07  00000000020b1000 00000000b2b3a000 00000000fa6fa000 00000000020b1478
[  293.096000] r08-11  0000000000000000 00000000020b15d0 00000000020b1430 0000000000000000
[  293.096000] r12-15  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[  293.096000] r16-19  0000000000000000 0000000000000000 00000000020b15d0 0000000000000000
[  293.096000] r20-23  0000000000000000 00000000000002f5 0000000000000000 00000000000002ee
[  293.096000] r24-27  0000000000000000 000000000800000f 0000000040d62080 00000000020b1000
[  293.096000] r28-31  0000000000000001 00000000b12949c0 00000000b12946a0 0000000040dce928
[  293.096000] sr00-03  00000000003eb800 0000000000000000 0000000000000000 00000000003eb800
[  293.096000] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[  293.096000] 
[  293.096000] IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040a5aab4 0000000040a5aab8
[  293.096000]  IIR: 502102f0    ISR: 0000000000000000  IOR: 000000000211d978
[  293.096000]  CPU:        0   CR30: 00000000b1294000 CR31: 00000000fffff5ff
[  293.096000]  ORIG_R28: 0000000040e24df0
[  293.096000]  IAOQ[0]: fixup_get_user_skip_1+0x4/0x38
[  293.096000]  IAOQ[1]: fixup_get_user_skip_1+0x8/0x38
[  293.096000]  RP(r2): test_user_copy_init+0x534/0x6e8 [test_user_copy]
[  293.096000] Backtrace:
[  293.096000] fault at 0x40223eac ... found !  fixup = 0x40a5aab0
[  293.096000] 
[  293.096000] Kernel panic - not syncing: Kernel Fault

--------------080101040304080909040901
Content-Type: text/x-diff;
 name="fixup.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="fixup.patch"

diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index 568b2c6..4b18a04 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -48,10 +48,14 @@ EXPORT_SYMBOL(lclear_user);
 EXPORT_SYMBOL(lstrnlen_user);
 
 /* Global fixups */
-extern void fixup_get_user_skip_1(void);
-extern void fixup_get_user_skip_2(void);
-extern void fixup_put_user_skip_1(void);
-extern void fixup_put_user_skip_2(void);
+//extern void fixup_get_user_skip_1(void);
+//extern void fixup_get_user_skip_2(void);
+//extern void fixup_put_user_skip_1(void);
+//extern void fixup_put_user_skip_2(void);
+extern int fixup_get_user_skip_1;
+extern int fixup_get_user_skip_2;
+extern int fixup_put_user_skip_1;
+extern int fixup_put_user_skip_2;
 EXPORT_SYMBOL(fixup_get_user_skip_1);
 EXPORT_SYMBOL(fixup_get_user_skip_2);
 EXPORT_SYMBOL(fixup_put_user_skip_1);
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 553b098..bb7f191 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -798,6 +798,9 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 
 	    if (fault_space == 0 && !faulthandler_disabled())
 	    {
+		/* Clean up and return if in exception table. */
+		if (fixup_exception(regs))
+			return;
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
 		parisc_terminate("Kernel Fault", regs, code, fault_address);
 	    }

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--kenitramv-d1d0f822-e4f0-4521-8e08-55fb779d54f4
Content-Type: text/plain; charset=UTF-8

> >> So, it seems that handling exceptions from modules never worked on 
> >> pa-risc, it was just masked by the fact that exceptions from modules don't 
> >> happen during normal use.
> 
> Sadly you seem to be right :-(
> I did more testing with the test_user_copy module (with vanilla kernel 4.5 and without the relative extable support).

The attached patch fixes the exception handling for modules for me.
This is realized by saving the %r27 register in the fault handler and restoring it in the exception path.
With this patch the "test_user_copy" kernel module succeeds when loaded.
Mikulas, can you try it with your testcases ?

Helge
--kenitramv-d1d0f822-e4f0-4521-8e08-55fb779d54f4
Content-Type: text/x-patch
Content-Disposition: attachment; filename=fixup2.patch

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 0abdd4c..1b05163 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -78,6 +78,7 @@ struct exception_data {
 	unsigned long fault_ip;
 	unsigned long fault_space;
 	unsigned long fault_addr;
+	unsigned long fault_gp;
 };
 
 #define __get_user(x, ptr)                               \
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index d2f6257..137c91e 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -301,6 +301,7 @@ int main(void)
 	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
 	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
 	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
+	DEFINE(EXCDATA_GP, offsetof(struct exception_data, fault_gp));
 	BLANK();
 	DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
 	BLANK();
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index 568b2c6..3cad8aa 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -47,11 +47,11 @@ EXPORT_SYMBOL(__cmpxchg_u64);
 EXPORT_SYMBOL(lclear_user);
 EXPORT_SYMBOL(lstrnlen_user);
 
-/* Global fixups */
-extern void fixup_get_user_skip_1(void);
-extern void fixup_get_user_skip_2(void);
-extern void fixup_put_user_skip_1(void);
-extern void fixup_put_user_skip_2(void);
+/* Global fixups - defined as int to avoid creation of function pointers */
+extern int fixup_get_user_skip_1;
+extern int fixup_get_user_skip_2;
+extern int fixup_put_user_skip_1;
+extern int fixup_put_user_skip_2;
 EXPORT_SYMBOL(fixup_get_user_skip_1);
 EXPORT_SYMBOL(fixup_get_user_skip_2);
 EXPORT_SYMBOL(fixup_put_user_skip_1);
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 553b098..77e2262 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -798,6 +798,9 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 
 	    if (fault_space == 0 && !faulthandler_disabled())
 	    {
+		/* Clean up and return if in exception table. */
+		if (fixup_exception(regs))
+			return;
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
 		parisc_terminate("Kernel Fault", regs, code, fault_address);
 	    }
diff --git a/arch/parisc/lib/fixup.S b/arch/parisc/lib/fixup.S
index 536ef66..1052b74 100644
--- a/arch/parisc/lib/fixup.S
+++ b/arch/parisc/lib/fixup.S
@@ -26,6 +26,7 @@
 
 #ifdef CONFIG_SMP
 	.macro  get_fault_ip t1 t2
+	loadgp
 	addil LT%__per_cpu_offset,%r27
 	LDREG RT%__per_cpu_offset(%r1),\t1
 	/* t2 = smp_processor_id() */
@@ -40,14 +41,19 @@
 	LDREG RT%exception_data(%r1),\t1
 	/* t1 = this_cpu_ptr(&exception_data) */
 	add,l \t1,\t2,\t1
+	/* %r27 = t1->fault_gp - restore gp */
+	LDREG EXCDATA_GP(\t1), %r27
 	/* t1 = t1->fault_ip */
 	LDREG EXCDATA_IP(\t1), \t1
 	.endm
 #else
 	.macro  get_fault_ip t1 t2
+	loadgp
 	/* t1 = this_cpu_ptr(&exception_data) */
 	addil LT%exception_data,%r27
 	LDREG RT%exception_data(%r1),\t2
+	/* %r27 = t2->fault_gp - restore gp */
+	LDREG EXCDATA_GP(\t2), %r27
 	/* t1 = t2->fault_ip */
 	LDREG EXCDATA_IP(\t2), \t1
 	.endm
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index a762864..245784e 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -153,6 +153,7 @@ int fixup_exception(struct pt_regs *regs)
 		d->fault_ip = regs->iaoq[0];
 		d->fault_space = regs->isr;
 		d->fault_addr = regs->ior;
+		d->fault_gp = regs->gr[27];
 
 		regs->iaoq[0] = ((fix->fixup) & ~3);
 		/*

--kenitramv-d1d0f822-e4f0-4521-8e08-55fb779d54f4--
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Cc: "Mikulas Patocka" <mpatocka@redhat.com>,
	"John David Anglin" <dave.anglin@bell.net>,
	linux-parisc@vger.kernel.org
To: "Helge Deller" <deller@gmx.de>
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--kenitramv-9eac9b62-d9f0-4733-ab7f-bd1333d06bb3
Content-Type: text/plain; charset=UTF-8

> > >> So, it seems that handling exceptions from modules never worked on 
> > >> pa-risc, it was just masked by the fact that exceptions from modules don't 
> > >> happen during normal use.
> > 
> > Sadly you seem to be right :-(
> > I did more testing with the test_user_copy module (with vanilla kernel 4.5 and without the relative extable support).
> 
> The attached patch fixes the exception handling for modules for me.
> This is realized by saving the %r27 register in the fault handler and restoring it in the exception path.
> With this patch the "test_user_copy" kernel module succeeds when loaded.
> Mikulas, can you try it with your testcases ?

Attached patch additionally adds support for resolving R_PARISC_PCREL32 relocations,
which fixes the 32bit extable change which was introduced with kernel 4.6-rc1.

With that I think we have all module issues resolved ?

Helge
--kenitramv-9eac9b62-d9f0-4733-ab7f-bd1333d06bb3
Content-Type: text/x-patch
Content-Disposition: attachment; filename=fixup3.patch

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index d4dd6e5..b370d61 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -79,6 +79,7 @@ struct exception_data {
 	unsigned long fault_ip;
 	unsigned long fault_space;
 	unsigned long fault_addr;
+	unsigned long fault_gp;
 };
 
 #define __get_user(x, ptr)                               \
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index d2f6257..137c91e 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -301,6 +301,7 @@ int main(void)
 	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
 	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
 	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
+	DEFINE(EXCDATA_GP, offsetof(struct exception_data, fault_gp));
 	BLANK();
 	DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
 	BLANK();
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index b9d75d9..c54cf39 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -788,6 +788,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			CHECK_RELOC(val, 22);
 			*loc = (*loc & ~0x3ff1ffd) | reassemble_22(val);
 			break;
+		case R_PARISC_PCREL32:
+			/* 32-bit PC relative address */
+			*loc = val - dot - 8 + addend;
+			break;
 		case R_PARISC_DIR64:
 			/* 64-bit effective address */
 			*loc64 = val + addend;
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index 568b2c6..3cad8aa 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -47,11 +47,11 @@ EXPORT_SYMBOL(__cmpxchg_u64);
 EXPORT_SYMBOL(lclear_user);
 EXPORT_SYMBOL(lstrnlen_user);
 
-/* Global fixups */
-extern void fixup_get_user_skip_1(void);
-extern void fixup_get_user_skip_2(void);
-extern void fixup_put_user_skip_1(void);
-extern void fixup_put_user_skip_2(void);
+/* Global fixups - defined as int to avoid creation of function pointers */
+extern int fixup_get_user_skip_1;
+extern int fixup_get_user_skip_2;
+extern int fixup_put_user_skip_1;
+extern int fixup_put_user_skip_2;
 EXPORT_SYMBOL(fixup_get_user_skip_1);
 EXPORT_SYMBOL(fixup_get_user_skip_2);
 EXPORT_SYMBOL(fixup_put_user_skip_1);
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 16e0735..97d6b20 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -795,6 +795,9 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 
 	    if (fault_space == 0 && !faulthandler_disabled())
 	    {
+		/* Clean up and return if in exception table. */
+		if (fixup_exception(regs))
+			return;
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
 		parisc_terminate("Kernel Fault", regs, code, fault_address);
 	    }
diff --git a/arch/parisc/lib/fixup.S b/arch/parisc/lib/fixup.S
index 536ef66..1052b74 100644
--- a/arch/parisc/lib/fixup.S
+++ b/arch/parisc/lib/fixup.S
@@ -26,6 +26,7 @@
 
 #ifdef CONFIG_SMP
 	.macro  get_fault_ip t1 t2
+	loadgp
 	addil LT%__per_cpu_offset,%r27
 	LDREG RT%__per_cpu_offset(%r1),\t1
 	/* t2 = smp_processor_id() */
@@ -40,14 +41,19 @@
 	LDREG RT%exception_data(%r1),\t1
 	/* t1 = this_cpu_ptr(&exception_data) */
 	add,l \t1,\t2,\t1
+	/* %r27 = t1->fault_gp - restore gp */
+	LDREG EXCDATA_GP(\t1), %r27
 	/* t1 = t1->fault_ip */
 	LDREG EXCDATA_IP(\t1), \t1
 	.endm
 #else
 	.macro  get_fault_ip t1 t2
+	loadgp
 	/* t1 = this_cpu_ptr(&exception_data) */
 	addil LT%exception_data,%r27
 	LDREG RT%exception_data(%r1),\t2
+	/* %r27 = t2->fault_gp - restore gp */
+	LDREG EXCDATA_GP(\t2), %r27
 	/* t1 = t2->fault_ip */
 	LDREG EXCDATA_IP(\t2), \t1
 	.endm
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 26fac9c..7a6ecaa 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -147,6 +147,7 @@ int fixup_exception(struct pt_regs *regs)
 		d->fault_ip = regs->iaoq[0];
 		d->fault_space = regs->isr;
 		d->fault_addr = regs->ior;
+		d->fault_gp = regs->gr[27];
 
 		regs->iaoq[0] = (unsigned long)&fix->fixup + fix->fixup;
 		regs->iaoq[0] &= ~3;

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From - Thu Nov 08 21:38:40 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Handle R_PARISC_PCREL32 relocation in kernel modules
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Xref: news.gmane.org gmane.linux.ports.parisc:26600
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Commit 0de7985 (parisc: Use generic extable search and sort routines)
changed the exception tables to use 32bit relative offsets.

With that change, the kernel needs to handle R_PARISC_PCREL32 relocations
which this patch adds.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index b9d75d9..c54cf39 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -788,6 +788,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			CHECK_RELOC(val, 22);
 			*loc = (*loc & ~0x3ff1ffd) | reassemble_22(val);
 			break;
+		case R_PARISC_PCREL32:
+			/* 32-bit PC relative address */
+			*loc = val - dot - 8 + addend;
+			break;
 		case R_PARISC_DIR64:
 			/* 64-bit effective address */
 			*loc64 = val + addend;
--
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From - Thu Nov 08 21:38:40 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Avoid function pointers for kernel exception routines
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We want to avoid the kernel module loader to create function pointers
for the kernel fixup routines of get_user() and put_user(). Changing
the external reference from function type to int type fixes this.

This unbreaks exception handling for get_user() and put_user() when
called from a kernel module.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org

diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index 568b2c6..3cad8aa 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -47,11 +47,11 @@ EXPORT_SYMBOL(__cmpxchg_u64);
 EXPORT_SYMBOL(lclear_user);
 EXPORT_SYMBOL(lstrnlen_user);
 
-/* Global fixups */
-extern void fixup_get_user_skip_1(void);
-extern void fixup_get_user_skip_2(void);
-extern void fixup_put_user_skip_1(void);
-extern void fixup_put_user_skip_2(void);
+/* Global fixups - defined as int to avoid creation of function pointers */
+extern int fixup_get_user_skip_1;
+extern int fixup_get_user_skip_2;
+extern int fixup_put_user_skip_1;
+extern int fixup_put_user_skip_2;
 EXPORT_SYMBOL(fixup_get_user_skip_1);
 EXPORT_SYMBOL(fixup_get_user_skip_2);
 EXPORT_SYMBOL(fixup_put_user_skip_1);
--
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From - Thu Nov 08 21:38:40 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix kernel crash with reversed copy_from_user()
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The kernel module testcase (lib/test_user_copy.c) exhibited a kernel
crash on parisc if the parameters for copy_from_user were reversed
("illegal reversed copy_to_user" testcase).

Fix this potential crash by checking the fault handler if the faulting
address is in the exception table.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 16e0735..97d6b20 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -795,6 +795,9 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 
 	    if (fault_space == 0 && !faulthandler_disabled())
 	    {
+		/* Clean up and return if in exception table. */
+		if (fixup_exception(regs))
+			return;
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
 		parisc_terminate("Kernel Fault", regs, code, fault_address);
 	    }
--
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From - Thu Nov 08 21:38:40 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Unbreak handling exceptions from kernel modules
Date: Fri, 8 Apr 2016 21:30:05 +0200
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Cc: Mikulas Patocka <mpatocka@redhat.com>
To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
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Handling exceptions from modules never worked on parisc.
It was just masked by the fact that exceptions from modules
don't happen during normal use.

When a module triggers an exception in get_user() we need to load the
main kernel dp value before accessing the exception_data structure, and
afterwards restore the original dp value of the module on exit.

Noticed-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index d4dd6e5..6f893d2 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -77,6 +77,7 @@ struct exception_table_entry {
  */
 struct exception_data {
 	unsigned long fault_ip;
+	unsigned long fault_gp;
 	unsigned long fault_space;
 	unsigned long fault_addr;
 };
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index d2f6257..78d30d2 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -299,6 +299,7 @@ int main(void)
 #endif
 	BLANK();
 	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
+	DEFINE(EXCDATA_GP, offsetof(struct exception_data, fault_gp));
 	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
 	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
 	BLANK();
diff --git a/arch/parisc/lib/fixup.S b/arch/parisc/lib/fixup.S
index 536ef66..1052b74 100644
--- a/arch/parisc/lib/fixup.S
+++ b/arch/parisc/lib/fixup.S
@@ -26,6 +26,7 @@
 
 #ifdef CONFIG_SMP
 	.macro  get_fault_ip t1 t2
+	loadgp
 	addil LT%__per_cpu_offset,%r27
 	LDREG RT%__per_cpu_offset(%r1),\t1
 	/* t2 = smp_processor_id() */
@@ -40,14 +41,19 @@
 	LDREG RT%exception_data(%r1),\t1
 	/* t1 = this_cpu_ptr(&exception_data) */
 	add,l \t1,\t2,\t1
+	/* %r27 = t1->fault_gp - restore gp */
+	LDREG EXCDATA_GP(\t1), %r27
 	/* t1 = t1->fault_ip */
 	LDREG EXCDATA_IP(\t1), \t1
 	.endm
 #else
 	.macro  get_fault_ip t1 t2
+	loadgp
 	/* t1 = this_cpu_ptr(&exception_data) */
 	addil LT%exception_data,%r27
 	LDREG RT%exception_data(%r1),\t2
+	/* %r27 = t2->fault_gp - restore gp */
+	LDREG EXCDATA_GP(\t2), %r27
 	/* t1 = t2->fault_ip */
 	LDREG EXCDATA_IP(\t2), \t1
 	.endm
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 26fac9c..16dbe81 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -145,6 +145,7 @@ int fixup_exception(struct pt_regs *regs)
 		struct exception_data *d;
 		d = this_cpu_ptr(&exception_data);
 		d->fault_ip = regs->iaoq[0];
+		d->fault_gp = regs->gr[27];
 		d->fault_space = regs->isr;
 		d->fault_addr = regs->ior;
 
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Update comment regarding relative addresses in
 exception table
Date: Fri, 8 Apr 2016 21:30:58 +0200
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Update the comment reflecting the last commit to store relative
addresses in the exception table.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 6f893d2..7955e43 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -44,20 +44,18 @@ static inline long access_ok(int type, const void __user * addr,
 #define LDD_USER(ptr)		BUILD_BUG()
 #define STD_KERNEL(x, ptr)	__put_kernel_asm64(x, ptr)
 #define STD_USER(x, ptr)	__put_user_asm64(x, ptr)
-#define ASM_WORD_INSN		".word\t"
 #else
 #define LDD_KERNEL(ptr)		__get_kernel_asm("ldd", ptr)
 #define LDD_USER(ptr)		__get_user_asm("ldd", ptr)
 #define STD_KERNEL(x, ptr)	__put_kernel_asm("std", x, ptr)
 #define STD_USER(x, ptr)	__put_user_asm("std", x, ptr)
-#define ASM_WORD_INSN		".dword\t"
 #endif
 
 /*
- * The exception table contains two values: the first is an address
- * for an instruction that is allowed to fault, and the second is
- * the address to the fixup routine. Even on a 64bit kernel we could
- * use a 32bit (unsigned int) address here.
+ * The exception table contains two values: the first is the relative offset to
+ * the address of the instruction that is allowed to fault, and the second is
+ * the relative offset to the address of the fixup routine. Since relative
+ * addresses are used, 32bit values are sufficient even on 64bit kernel.
  */
 
 #define ARCH_HAS_RELATIVE_EXTABLE
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From - Thu Nov 08 21:38:41 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Aw: Re: kernel 4.6-rc unbootable due to module changes
Date: Fri, 8 Apr 2016 21:43:09 +0200
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Cc: Mikulas Patocka <mpatocka@redhat.com>,
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On 08.04.2016 16:59, Helge Deller wrote:
>>>>> So, it seems that handling exceptions from modules never worked on 
>>>>> pa-risc, it was just masked by the fact that exceptions from modules don't 
>>>>> happen during normal use.
>>>
>>> Sadly you seem to be right :-(
>>> I did more testing with the test_user_copy module (with vanilla kernel 4.5 and without the relative extable support).
>>
>> The attached patch fixes the exception handling for modules for me.
>> This is realized by saving the %r27 register in the fault handler and restoring it in the exception path.
>> With this patch the "test_user_copy" kernel module succeeds when loaded.
>> Mikulas, can you try it with your testcases ?
> 
> Attached patch additionally adds support for resolving R_PARISC_PCREL32 relocations,
> which fixes the 32bit extable change which was introduced with kernel 4.6-rc1.
> 
> With that I think we have all module issues resolved ?

I've pushed all relevant changes into my for-next tree which can be pulled:
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/log/?h=for-next

Helge
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc fixes for 4.6-rc2
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Hi Linus,

please pull some important fixes for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.6-3

Since commit 0de7985 (parisc: Use generic extable search and sort routines)
module loading is boken on parisc, because the parisc module loader wasn't
prepared for the new R_PARISC_PCREL32 relocations.

In addition, due to that breakage, Mikulas Patocka noticed that handling
exceptions from modules probably never worked on parisc. It was just masked by
the fact that exceptions from modules don't happen during normal use.

This patch series fixes those issues and survives the tests of the
lib/test_user_copy kernel module test.  Some patches are tagged for stable.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (5):
      parisc: Handle R_PARISC_PCREL32 relocations in kernel modules
      parisc: Avoid function pointers for kernel exception routines
      parisc: Fix kernel crash with reversed copy_from_user()
      parisc: Unbreak handling exceptions from kernel modules
      parisc: Update comment regarding relative extable support

 arch/parisc/include/asm/uaccess.h | 11 +++++------
 arch/parisc/kernel/asm-offsets.c  |  1 +
 arch/parisc/kernel/module.c       |  8 ++++++++
 arch/parisc/kernel/parisc_ksyms.c | 10 +++++-----
 arch/parisc/kernel/traps.c        |  3 +++
 arch/parisc/lib/fixup.S           |  6 ++++++
 arch/parisc/mm/fault.c            |  1 +
 7 files changed, 29 insertions(+), 11 deletions(-)
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From - Thu Nov 08 21:38:41 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Simplify and speed up get_user() and put_user()
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This patch simplifies the code for get_user() and put_user() a lot.

Instead of accessing kernel memory (%sr0) and userspace memory (%sr3)
hard-coded in the assembler instruction, we now preload %sr2 with either
%sr0 (for accessing KERNEL_DS) or with sr3 (to access USER_DS) and
use %sr2 in the load directly.

The generated code avoids a branch and speeds up execution by generating
less assembler instructions.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index fbd2e79..48070f2 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -40,14 +40,10 @@ static inline long access_ok(int type, const void __user * addr,
 #define get_user __get_user
 
 #if !defined(CONFIG_64BIT)
-#define LDD_KERNEL(ptr)		BUILD_BUG()
 #define LDD_USER(ptr)		BUILD_BUG()
-#define STD_KERNEL(x, ptr)	__put_kernel_asm64(x, ptr)
 #define STD_USER(x, ptr)	__put_user_asm64(x, ptr)
 #else
-#define LDD_KERNEL(ptr)		__get_kernel_asm("ldd", ptr)
 #define LDD_USER(ptr)		__get_user_asm("ldd", ptr)
-#define STD_KERNEL(x, ptr)	__put_kernel_asm("std", x, ptr)
 #define STD_USER(x, ptr)	__put_user_asm("std", x, ptr)
 #endif
 
@@ -79,43 +75,39 @@ struct exception_data {
 	unsigned long fault_addr;
 };
 
+/*
+ * load_sr2() preloads the space register %%sr2 - based on the value of
+ * get_fs() - with either a value of 0 to access kernel space (KERNEL_DS which
+ * is 0), or with the current value of %%sr3 to access user space (USER_DS)
+ * memory. The following __get_user_asm() and __put_user_asm() functions have
+ * %%sr2 hard-coded to access the requested memory.
+ */
+#define load_sr2() \
+	__asm__(" or,=  %0,%%r0,%%r0\n\t"	\
+		" mfsp %%sr3,%0\n\t"		\
+		" mtsp %0,%%sr2\n\t"		\
+		: : "r"(get_fs()) : )
+
 #define __get_user(x, ptr)                               \
 ({                                                       \
 	register long __gu_err __asm__ ("r8") = 0;       \
 	register long __gu_val __asm__ ("r9") = 0;       \
 							 \
-	if (segment_eq(get_fs(), KERNEL_DS)) {           \
-	    switch (sizeof(*(ptr))) {                    \
-	    case 1: __get_kernel_asm("ldb", ptr); break; \
-	    case 2: __get_kernel_asm("ldh", ptr); break; \
-	    case 4: __get_kernel_asm("ldw", ptr); break; \
-	    case 8: LDD_KERNEL(ptr); break;		 \
-	    default: BUILD_BUG(); break;		 \
-	    }                                            \
-	}                                                \
-	else {                                           \
-	    switch (sizeof(*(ptr))) {                    \
+	load_sr2();					 \
+	switch (sizeof(*(ptr))) {			 \
 	    case 1: __get_user_asm("ldb", ptr); break;   \
 	    case 2: __get_user_asm("ldh", ptr); break;   \
 	    case 4: __get_user_asm("ldw", ptr); break;   \
 	    case 8: LDD_USER(ptr);  break;		 \
 	    default: BUILD_BUG(); break;		 \
-	    }                                            \
 	}                                                \
 							 \
 	(x) = (__force __typeof__(*(ptr))) __gu_val;	 \
 	__gu_err;                                        \
 })
 
-#define __get_kernel_asm(ldx, ptr)                      \
-	__asm__("\n1:\t" ldx "\t0(%2),%0\n\t"		\
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_1)\
-		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err)		\
-		: "r1");
-
 #define __get_user_asm(ldx, ptr)                        \
-	__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n\t"	\
+	__asm__("\n1:\t" ldx "\t0(%%sr2,%2),%0\n\t"	\
 		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_1)\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
 		: "r"(ptr), "1"(__gu_err)		\
@@ -126,23 +118,13 @@ struct exception_data {
 	register long __pu_err __asm__ ("r8") = 0;      	\
         __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x);	\
 								\
-	if (segment_eq(get_fs(), KERNEL_DS)) {                  \
-	    switch (sizeof(*(ptr))) {                           \
-	    case 1: __put_kernel_asm("stb", __x, ptr); break;   \
-	    case 2: __put_kernel_asm("sth", __x, ptr); break;   \
-	    case 4: __put_kernel_asm("stw", __x, ptr); break;   \
-	    case 8: STD_KERNEL(__x, ptr); break;		\
-	    default: BUILD_BUG(); break;			\
-	    }                                                   \
-	}                                                       \
-	else {                                                  \
-	    switch (sizeof(*(ptr))) {                           \
+	load_sr2();						\
+	switch (sizeof(*(ptr))) {				\
 	    case 1: __put_user_asm("stb", __x, ptr); break;     \
 	    case 2: __put_user_asm("sth", __x, ptr); break;     \
 	    case 4: __put_user_asm("stw", __x, ptr); break;     \
 	    case 8: STD_USER(__x, ptr); break;			\
 	    default: BUILD_BUG(); break;			\
-	    }                                                   \
 	}                                                       \
 								\
 	__pu_err;						\
@@ -158,17 +140,9 @@ struct exception_data {
  * r8/r9 are already listed as err/val.
  */
 
-#define __put_kernel_asm(stx, x, ptr)                       \
-	__asm__ __volatile__ (                              \
-		"\n1:\t" stx "\t%2,0(%1)\n\t"		    \
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_1)\
-		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
-	    	: "r1")
-
 #define __put_user_asm(stx, x, ptr)                         \
 	__asm__ __volatile__ (                              \
-		"\n1:\t" stx "\t%2,0(%%sr3,%1)\n\t"	    \
+		"\n1:\t" stx "\t%2,0(%%sr2,%1)\n\t"	    \
 		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_1)\
 		: "=r"(__pu_err)                            \
 		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
@@ -177,21 +151,10 @@ struct exception_data {
 
 #if !defined(CONFIG_64BIT)
 
-#define __put_kernel_asm64(__val, ptr) do {		    \
-	__asm__ __volatile__ (				    \
-		"\n1:\tstw %2,0(%1)"			    \
-		"\n2:\tstw %R2,4(%1)\n\t"		    \
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_2)\
-		ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_put_user_skip_1)\
-		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(__val), "0"(__pu_err) \
-		: "r1");				    \
-} while (0)

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Add 64bit get_user() and put_user() for 32bit kernel
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Add functionality to access 64-bit values in userspace on a 32-bit
kernel.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 48070f2..efe6c5d 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -40,7 +40,7 @@ static inline long access_ok(int type, const void __user * addr,
 #define get_user __get_user
 
 #if !defined(CONFIG_64BIT)
-#define LDD_USER(ptr)		BUILD_BUG()
+#define LDD_USER(ptr)		__get_user_asm64(ptr)
 #define STD_USER(x, ptr)	__put_user_asm64(x, ptr)
 #else
 #define LDD_USER(ptr)		__get_user_asm("ldd", ptr)
@@ -113,6 +113,20 @@ struct exception_data {
 		: "r"(ptr), "1"(__gu_err)		\
 		: "r1");
 
+#if !defined(CONFIG_64BIT)
+
+#define __get_user_asm64(ptr) 				\
+	__asm__("\n1:\tldw 0(%%sr2,%2),%0"		\
+		"\n2:\tldw 4(%%sr2,%2),%R0\n\t"		\
+		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_2)\
+		ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_get_user_skip_1)\
+		: "=r"(__gu_val), "=r"(__gu_err)	\
+		: "r"(ptr), "1"(__gu_err)		\
+		: "r1");
+
+#endif /* !defined(CONFIG_64BIT) */
+
+
 #define __put_user(x, ptr)                                      \
 ({								\
 	register long __pu_err __asm__ ("r8") = 0;      	\
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Add ARCH_TRACEHOOK and regset support
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By adding TRACEHOOK support we now get a clean user interface to access
registers via PTRACE_GETREGS, PTRACE_SETREGS, PTRACE_GETFPREGS and
PTRACE_SETFPREGS.

The user-visible regset struct user_regs_struct and user_fp_struct are
modelled similiar to x86 and can be accessed via PTRACE_GETREGSET.

Add support for the parisc architecture to the seccomp_bpf testcase.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index bd3c873..ea72046 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -31,6 +31,7 @@ config PARISC
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_ARCH_SECCOMP_FILTER
+	select HAVE_ARCH_TRACEHOOK
 	select ARCH_NO_COHERENT_DMA_MMAP
 
 	help
diff --git a/arch/parisc/include/uapi/asm/ptrace.h b/arch/parisc/include/uapi/asm/ptrace.h
index c4fa6c8..02ce2eb 100644
--- a/arch/parisc/include/uapi/asm/ptrace.h
+++ b/arch/parisc/include/uapi/asm/ptrace.h
@@ -13,6 +13,11 @@
  * N.B. gdb/strace care about the size and offsets within this
  * structure. If you change things, you may break object compatibility
  * for those applications.
+ *
+ * Please do NOT use this structure for future programs, but use
+ * user_regs_struct (see below) instead.
+ *
+ * It can be accessed through PTRACE_PEEKUSR/PTRACE_POKEUSR only.
  */
 
 struct pt_regs {
@@ -33,6 +38,45 @@ struct pt_regs {
 	unsigned long ipsw;	/* CR22 */
 };
 
+/**
+ * struct user_regs_struct - User general purpose registers
+ *
+ * This is the user-visible general purpose register state structure
+ * which is used to define the elf_gregset_t.
+ *
+ * It can be accessed through PTRACE_GETREGSET with NT_PRSTATUS
+ * and through PTRACE_GETREGS.
+ */
+struct user_regs_struct {
+	unsigned long gr[32];	/* PSW is in gr[0] */
+	unsigned long sr[8];
+	unsigned long iaoq[2];
+	unsigned long iasq[2];
+	unsigned long sar;	/* CR11 */
+	unsigned long iir;	/* CR19 */
+	unsigned long isr;	/* CR20 */
+	unsigned long ior;	/* CR21 */
+	unsigned long ipsw;	/* CR22 */
+	unsigned long cr0;
+	unsigned long cr24, cr25, cr26, cr27, cr28, cr29, cr30, cr31;
+	unsigned long cr8, cr9, cr12, cr13, cr10, cr15;
+	unsigned long _pad[80-64];	/* pad to ELF_NGREG (80) */
+};
+
+/**
+ * struct user_fp_struct - User floating point registers
+ *
+ * This is the user-visible floating point register state structure.
+ * It uses the same layout and size as elf_fpregset_t.
+ *
+ * It can be accessed through PTRACE_GETREGSET with NT_PRFPREG
+ * and through PTRACE_GETFPREGS.
+ */
+struct user_fp_struct {
+	__u64 fr[32];
+};
+
+
 /*
  * The numbers chosen here are somewhat arbitrary but absolutely MUST
  * not overlap with any of the number assigned in <linux/ptrace.h>.
@@ -43,5 +87,9 @@ struct pt_regs {
  */
 #define PTRACE_SINGLEBLOCK	12	/* resume execution until next branch */
 
+#define PTRACE_GETREGS		18
+#define PTRACE_SETREGS		19
+#define PTRACE_GETFPREGS	14
+#define PTRACE_SETFPREGS	15
 
 #endif /* _UAPI_PARISC_PTRACE_H */
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 8fb81a3..f936fc6 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -4,18 +4,20 @@
  * Copyright (C) 2000 Hewlett-Packard Co, Linuxcare Inc.
  * Copyright (C) 2000 Matthew Wilcox <matthew@wil.cx>
  * Copyright (C) 2000 David Huggins-Daines <dhd@debian.org>
- * Copyright (C) 2008 Helge Deller <deller@gmx.de>
+ * Copyright (C) 2008-2016 Helge Deller <deller@gmx.de>
  */
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
+#include <linux/elf.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
 #include <linux/tracehook.h>
 #include <linux/user.h>
 #include <linux/personality.h>
+#include <linux/regset.h>
 #include <linux/security.h>
 #include <linux/seccomp.h>
 #include <linux/compat.h>
@@ -31,6 +33,14 @@
 #define USER_PSW_BITS	(PSW_N | PSW_B | PSW_V | PSW_CB)
 
 /*
+ * These are our native regset flavors.
+ */
+enum parisc_regset {
+	REGSET_GENERAL,
+	REGSET_FP
+};
+
+/*
  * Called by kernel/ptrace.c when detaching..
  *
  * Make sure single step bits etc are not set.
@@ -114,6 +124,7 @@ void user_enable_block_step(struct task_struct *task)
 long arch_ptrace(struct task_struct *child, long request,
 		 unsigned long addr, unsigned long data)
 {
+	unsigned long __user *datap = (unsigned long __user *)data;
 	unsigned long tmp;
 	long ret = -EIO;
 
@@ -126,7 +137,7 @@ long arch_ptrace(struct task_struct *child, long request,
 		     addr >= sizeof(struct pt_regs))
 			break;
 		tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
-		ret = put_user(tmp, (unsigned long __user *) data);
+		ret = put_user(tmp, datap);
 		break;
 
 	/* Write the word at location addr in the USER area.  This will need
@@ -165,6 +176,34 @@ long arch_ptrace(struct task_struct *child, long request,
 		}
 		break;
 
+	case PTRACE_GETREGS:	/* Get all gp regs from the child. */
+		return copy_regset_to_user(child,
+					   task_user_regset_view(current),
+					   REGSET_GENERAL,
+					   0, sizeof(struct user_regs_struct),
+					   datap);
+
+	case PTRACE_SETREGS:	/* Set all gp regs in the child. */
+		return copy_regset_from_user(child,
+					     task_user_regset_view(current),
+					     REGSET_GENERAL,
+					     0, sizeof(struct user_regs_struct),
+					     datap);
+
+	case PTRACE_GETFPREGS:	/* Get the child FPU state. */
+		return copy_regset_to_user(child,
+					   task_user_regset_view(current),
+					   REGSET_FP,
+					   0, sizeof(struct user_fp_struct),
+					   datap);
+
+	case PTRACE_SETFPREGS:	/* Set the child FPU state. */
+		return copy_regset_from_user(child,
+					     task_user_regset_view(current),
+					     REGSET_FP,
+					     0, sizeof(struct user_fp_struct),
+					     datap);
+
 	default:
 		ret = ptrace_request(child, request, addr, data);
 		break;
@@ -314,3 +353,316 @@ void do_syscall_trace_exit(struct pt_regs *regs)
 	if (stepping || test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, stepping);
 }
+
+
+/*
+ * regset functions.
+ */
+
+static int fpr_get(struct task_struct *target,
+		     const struct user_regset *regset,
+		     unsigned int pos, unsigned int count,
+		     void *kbuf, void __user *ubuf)
+{
+	struct pt_regs *regs = task_regs(target);
+	__u64 *k = kbuf;
+	__u64 __user *u = ubuf;
+	__u64 reg;
+
+	pos /= sizeof(reg);
+	count /= sizeof(reg);
+
+	if (kbuf)
+		for (; count > 0 && pos < ELF_NFPREG; --count)
+			*k++ = regs->fr[pos++];
+	else
+		for (; count > 0 && pos < ELF_NFPREG; --count)
+			if (__put_user(regs->fr[pos++], u++))
+				return -EFAULT;
+
+	kbuf = k;
+	ubuf = u;
+	pos *= sizeof(reg);
+	count *= sizeof(reg);
+	return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
+					ELF_NFPREG * sizeof(reg), -1);
+}
+
+static int fpr_set(struct task_struct *target,
+		     const struct user_regset *regset,
+		     unsigned int pos, unsigned int count,
+		     const void *kbuf, const void __user *ubuf)
+{
+	struct pt_regs *regs = task_regs(target);
+	const __u64 *k = kbuf;
+	const __u64 __user *u = ubuf;
+	__u64 reg;
+
+	pos /= sizeof(reg);
+	count /= sizeof(reg);
+
+	if (kbuf)
+		for (; count > 0 && pos < ELF_NFPREG; --count)
+			regs->fr[pos++] = *k++;
+	else
+		for (; count > 0 && pos < ELF_NFPREG; --count) {
+			if (__get_user(reg, u++))
+				return -EFAULT;
+			regs->fr[pos++] = reg;
+		}
+
+	kbuf = k;
+	ubuf = u;
+	pos *= sizeof(reg);
+	count *= sizeof(reg);
+	return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+					 ELF_NFPREG * sizeof(reg), -1);
+}
+
+#define RI(reg) (offsetof(struct user_regs_struct,reg) / sizeof(long))
+
+static unsigned long get_reg(struct pt_regs *regs, int num)
+{
+	switch (num) {
+	case RI(gr[0]) ... RI(gr[31]):	return regs->gr[num - RI(gr[0])];
+	case RI(sr[0]) ... RI(sr[7]):	return regs->sr[num - RI(sr[0])];
+	case RI(iasq[0]):		return regs->iasq[0];
+	case RI(iasq[1]):		return regs->iasq[1];
+	case RI(iaoq[0]):		return regs->iaoq[0];
+	case RI(iaoq[1]):		return regs->iaoq[1];
+	case RI(sar):			return regs->sar;
+	case RI(iir):			return regs->iir;
+	case RI(isr):			return regs->isr;
+	case RI(ior):			return regs->ior;
+	case RI(ipsw):			return regs->ipsw;
+	case RI(cr27):			return regs->cr27;
+	case RI(cr0):			return mfctl(0);
+	case RI(cr24):			return mfctl(24);
+	case RI(cr25):			return mfctl(25);
+	case RI(cr26):			return mfctl(26);
+	case RI(cr28):			return mfctl(28);
+	case RI(cr29):			return mfctl(29);
+	case RI(cr30):			return mfctl(30);
+	case RI(cr31):			return mfctl(31);
+	case RI(cr8):			return mfctl(8);
+	case RI(cr9):			return mfctl(9);
+	case RI(cr12):			return mfctl(12);
+	case RI(cr13):			return mfctl(13);
+	case RI(cr10):			return mfctl(10);
+	case RI(cr15):			return mfctl(15);
+	default:			return 0;
+	}
+}
+
+static void set_reg(struct pt_regs *regs, int num, unsigned long val)
+{
+	switch (num) {
+	case RI(gr[0]): /*
+			 * PSW is in gr[0].
+			 * Allow writing to Nullify, Divide-step-correction,
+			 * and carry/borrow bits.
+			 * BEWARE, if you set N, and then single step, it won't
+			 * stop on the nullified instruction.
+			 */
+			val &= USER_PSW_BITS;
+			regs->gr[0] &= ~USER_PSW_BITS;
+			regs->gr[0] |= val;
+			return;
+	case RI(gr[1]) ... RI(gr[31]):
+			regs->gr[num - RI(gr[0])] = val;
+			return;
+	case RI(iaoq[0]):
+	case RI(iaoq[1]):
+			regs->iaoq[num - RI(iaoq[0])] = val;
+			return;
+	case RI(sar):	regs->sar = val;
+			return;
+	default:	return;
+#if 0
+	/* do not allow to change any of the following registers (yet) */
+	case RI(sr[0]) ... RI(sr[7]):	return regs->sr[num - RI(sr[0])];
+	case RI(iasq[0]):		return regs->iasq[0];
+	case RI(iasq[1]):		return regs->iasq[1];
+	case RI(iir):			return regs->iir;
+	case RI(isr):			return regs->isr;
+	case RI(ior):			return regs->ior;
+	case RI(ipsw):			return regs->ipsw;
+	case RI(cr27):			return regs->cr27;
+        case cr0, cr24, cr25, cr26, cr27, cr28, cr29, cr30, cr31;
+        case cr8, cr9, cr12, cr13, cr10, cr15;
+#endif
+	}
+}
+
+static int gpr_get(struct task_struct *target,
+		     const struct user_regset *regset,
+		     unsigned int pos, unsigned int count,
+		     void *kbuf, void __user *ubuf)
+{
+	struct pt_regs *regs = task_regs(target);
+	unsigned long *k = kbuf;
+	unsigned long __user *u = ubuf;
+	unsigned long reg;
+
+	pos /= sizeof(reg);
+	count /= sizeof(reg);
+
+	if (kbuf)
+		for (; count > 0 && pos < ELF_NGREG; --count)
+			*k++ = get_reg(regs, pos++);
+	else
+		for (; count > 0 && pos < ELF_NGREG; --count)
+			if (__put_user(get_reg(regs, pos++), u++))
+				return -EFAULT;
+	kbuf = k;
+	ubuf = u;
+	pos *= sizeof(reg);
+	count *= sizeof(reg);
+	return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
+					ELF_NGREG * sizeof(reg), -1);
+}
+
+static int gpr_set(struct task_struct *target,
+		     const struct user_regset *regset,
+		     unsigned int pos, unsigned int count,
+		     const void *kbuf, const void __user *ubuf)
+{
+	struct pt_regs *regs = task_regs(target);
+	const unsigned long *k = kbuf;
+	const unsigned long __user *u = ubuf;
+	unsigned long reg;
+
+	pos /= sizeof(reg);
+	count /= sizeof(reg);
+
+	if (kbuf)
+		for (; count > 0 && pos < ELF_NGREG; --count)
+			set_reg(regs, pos++, *k++);
+	else
+		for (; count > 0 && pos < ELF_NGREG; --count) {
+			if (__get_user(reg, u++))
+				return -EFAULT;
+			set_reg(regs, pos++, reg);
+		}
+
+	kbuf = k;
+	ubuf = u;
+	pos *= sizeof(reg);
+	count *= sizeof(reg);
+	return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+					 ELF_NGREG * sizeof(reg), -1);
+}
+
+static const struct user_regset native_regsets[] = {
+	[REGSET_GENERAL] = {
+		.core_note_type = NT_PRSTATUS, .n = ELF_NGREG,
+		.size = sizeof(long), .align = sizeof(long),
+		.get = gpr_get, .set = gpr_set
+	},
+	[REGSET_FP] = {
+		.core_note_type = NT_PRFPREG, .n = ELF_NFPREG,
+		.size = sizeof(__u64), .align = sizeof(__u64),
+		.get = fpr_get, .set = fpr_set
+	}
+};
+
+static const struct user_regset_view user_parisc_native_view = {
+	.name = "parisc", .e_machine = ELF_ARCH, .ei_osabi = ELFOSABI_LINUX,
+	.regsets = native_regsets, .n = ARRAY_SIZE(native_regsets)
+};
+
+#ifdef CONFIG_64BIT
+#include <linux/compat.h>
+
+static int gpr32_get(struct task_struct *target,
+		     const struct user_regset *regset,
+		     unsigned int pos, unsigned int count,
+		     void *kbuf, void __user *ubuf)
+{
+	struct pt_regs *regs = task_regs(target);
+	compat_ulong_t *k = kbuf;
+	compat_ulong_t __user *u = ubuf;
+	compat_ulong_t reg;
+
+	pos /= sizeof(reg);
+	count /= sizeof(reg);
+
+	if (kbuf)
+		for (; count > 0 && pos < ELF_NGREG; --count)
+			*k++ = get_reg(regs, pos++);
+	else
+		for (; count > 0 && pos < ELF_NGREG; --count)
+			if (__put_user((compat_ulong_t) get_reg(regs, pos++), u++))
+				return -EFAULT;
+
+	kbuf = k;
+	ubuf = u;
+	pos *= sizeof(reg);
+	count *= sizeof(reg);
+	return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
+					ELF_NGREG * sizeof(reg), -1);
+}
+
+static int gpr32_set(struct task_struct *target,
+		     const struct user_regset *regset,
+		     unsigned int pos, unsigned int count,
+		     const void *kbuf, const void __user *ubuf)
+{
+	struct pt_regs *regs = task_regs(target);
+	const compat_ulong_t *k = kbuf;
+	const compat_ulong_t __user *u = ubuf;
+	compat_ulong_t reg;
+
+	pos /= sizeof(reg);
+	count /= sizeof(reg);
+
+	if (kbuf)
+		for (; count > 0 && pos < ELF_NGREG; --count)
+			set_reg(regs, pos++, *k++);
+	else
+		for (; count > 0 && pos < ELF_NGREG; --count) {
+			if (__get_user(reg, u++))
+				return -EFAULT;
+			set_reg(regs, pos++, reg);
+		}
+
+	kbuf = k;
+	ubuf = u;
+	pos *= sizeof(reg);
+	count *= sizeof(reg);
+	return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+					 ELF_NGREG * sizeof(reg), -1);
+}
+
+/*
+ * These are the regset flavors matching the 32bit native set.
+ */
+static const struct user_regset compat_regsets[] = {
+	[REGSET_GENERAL] = {
+		.core_note_type = NT_PRSTATUS, .n = ELF_NGREG,
+		.size = sizeof(compat_long_t), .align = sizeof(compat_long_t),
+		.get = gpr32_get, .set = gpr32_set
+	},
+	[REGSET_FP] = {
+		.core_note_type = NT_PRFPREG, .n = ELF_NFPREG,
+		.size = sizeof(__u64), .align = sizeof(__u64),
+		.get = fpr_get, .set = fpr_set
+	}
+};
+
+static const struct user_regset_view user_parisc_compat_view = {
+	.name = "parisc", .e_machine = EM_PARISC, .ei_osabi = ELFOSABI_LINUX,
+	.regsets = compat_regsets, .n = ARRAY_SIZE(compat_regsets)
+};
+#endif	/* CONFIG_64BIT */
+
+const struct user_regset_view *task_user_regset_view(struct task_struct *task)
+{
+	BUILD_BUG_ON(sizeof(struct user_regs_struct)/sizeof(long) != ELF_NGREG);
+	BUILD_BUG_ON(sizeof(struct user_fp_struct)/sizeof(__u64) != ELF_NFPREG);
+#ifdef CONFIG_64BIT
+	if (is_compat_task())
+		return &user_parisc_compat_view;
+#endif
+	return &user_parisc_native_view;
+}
diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
index b9453b8..e9eec23 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -1234,6 +1234,10 @@ TEST_F(TRACE_poke, getpid_runs_normally)
 # define ARCH_REGS	struct user_pt_regs
 # define SYSCALL_NUM	regs[8]
 # define SYSCALL_RET	regs[0]
+#elif defined(__hppa__)
+# define ARCH_REGS	struct user_regs_struct
+# define SYSCALL_NUM	gr[20]
+# define SYSCALL_RET	gr[28]
 #elif defined(__powerpc__)
 # define ARCH_REGS	struct pt_regs
 # define SYSCALL_NUM	gpr[0]
@@ -1293,7 +1297,7 @@ void change_syscall(struct __test_metadata *_metadata,
 	EXPECT_EQ(0, ret);
 
 #if defined(__x86_64__) || defined(__i386__) || defined(__powerpc__) || \
-    defined(__s390__)
+    defined(__s390__) || defined(__hppa__)
 	{
 		regs.SYSCALL_NUM = syscall;
 	}
@@ -1479,6 +1483,8 @@ TEST_F(TRACE_syscall, syscall_dropped)
 #  define __NR_seccomp 383
 # elif defined(__aarch64__)
 #  define __NR_seccomp 277
+# elif defined(__hppa__)
+#  define __NR_seccomp 338
 # elif defined(__powerpc__)
 #  define __NR_seccomp 358
 # elif defined(__s390__)
--
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Xref: news.gmane.org gmane.comp.lib.libseccomp.general:1336 gmane.linux.ports.parisc:26610
Archived-At: <http://permalink.gmane.org/gmane.comp.lib.libseccomp.general/1336>

This patch (v2) adds support for the parisc and parisc64 architectures
to libseccomp.

I didn't split up the patch, because it's pretty trivial.
Those parisc-specific files gets added:
 src/arch-parisc-syscalls.c
 src/arch-parisc.c
 src/arch-parisc.h
 src/arch-parisc64.c

All other changes are trivial because they simply add parisc-specific
case statements in variouse switch statements.

I noticed that when valgrind is not going to be used (e.g. because it's not
installed), the test testsuite will issue no information about that. With this
patch you will get informed if a testcase was SKIPPED because valgrind is not
installed. This additional info is useful for architectures which aren't as
fast as x86_64. On parisc it seemed that the whole testcase was hanging, now
people know what's actually happening.

I did ran a "make check" sucessfully on x86_64 and parisc.
The x86_64 didn't showed any issues, while on the parisc architecture
the 29-sim-pseudo_syscall testcase failed. But it seems this testcase
failure is not caused by this patch, instead it seems that it will fail
on most other architectures beside x86_64 as well.

It would be nice if you could add this patch to the libseccomp git tree.
The patch applies cleanly to current git head.

Changes compared to v1 of this patch:
- Enabled seccomp mode 2 regression tests on parisc. Kernel support for hppa
was added in kernel 4.6-rc1 and backported into the kernel stable series.

Thanks,
Helge

Signed-off-by: Helge Deller <deller@gmx.de>

diffstat:
 include/seccomp.h.in              |    6 
 src/Makefile.am                   |    2 
 src/arch-parisc-syscalls.c        |  422 ++++++++++++++++++++++++++++++++++++++
 src/arch-parisc.c                 |   22 +
 src/arch-parisc.h                 |   38 +++
 src/arch-parisc64.c               |   22 +
 src/arch-syscall-dump.c           |    5 
 src/arch.c                        |   13 +
 src/gen_pfc.c                     |    4 
 src/python/libseccomp.pxd         |    2 
 src/python/seccomp.pyx            |    8 
 tests/26-sim-arch_all_be_basic.c  |    6 
 tests/26-sim-arch_all_be_basic.py |    2 
 tests/regression                  |    4 
 tools/scmp_arch_detect.c          |    6 
 tools/scmp_bpf_sim.c              |    4 
 tools/util.c                      |    4 
 17 files changed, 569 insertions(+), 1 deletion(-)

diff --git a/include/seccomp.h.in b/include/seccomp.h.in
index 6bf6751..5b9057f 100644
--- a/include/seccomp.h.in
+++ b/include/seccomp.h.in
@@ -185,6 +185,12 @@ struct scmp_arg_cmp {
 #define SCMP_ARCH_S390X		AUDIT_ARCH_S390X
 
 /**
+ * The PA-RISC hppa architecture tokens
+ */
+#define SCMP_ARCH_PARISC	AUDIT_ARCH_PARISC
+#define SCMP_ARCH_PARISC64	AUDIT_ARCH_PARISC64
+
+/**
  * Convert a syscall name into the associated syscall number
  * @param x the syscall name
  */
diff --git a/src/Makefile.am b/src/Makefile.am
index c2d805e..dcc79d9 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -35,6 +35,8 @@ SOURCES_ALL = \
 	arch-mips.h arch-mips.c arch-mips-syscalls.c \
 	arch-mips64.h arch-mips64.c arch-mips64-syscalls.c \
 	arch-mips64n32.h arch-mips64n32.c arch-mips64n32-syscalls.c \
+	arch-parisc.h arch-parisc.c arch-parisc-syscalls.c \
+	arch-parisc64.h arch-parisc64.c \
 	arch-ppc.h arch-ppc.c arch-ppc-syscalls.c \
 	arch-ppc64.h arch-ppc64.c arch-ppc64-syscalls.c \
 	arch-s390.h arch-s390.c arch-s390-syscalls.c \
diff --git a/src/arch-parisc-syscalls.c b/src/arch-parisc-syscalls.c
new file mode 100644
index 0000000..c6efdd1
--- /dev/null
+++ b/src/arch-parisc-syscalls.c
@@ -0,0 +1,422 @@
+/*
+ * Copyright 2016
+ * Author: Helge Deller <deller@gmx.de>
+ */
+
+#include <string.h>
+
+#include <seccomp.h>
+
+#include "arch.h"
+#include "arch-parisc.h"
+
+#ifndef __NR_Linux
+#define __NR_Linux 0
+#endif
+
+/* NOTE: based on Linux 4.3 */
+const struct arch_syscall_def parisc_syscall_table[] = { \
+	{ "_llseek",	(__NR_Linux + 140) },
+	{ "_newselect",	(__NR_Linux + 142) },
+	{ "_sysctl",	(__NR_Linux + 149) },
+	{ "accept4",	(__NR_Linux + 320) },
+	{ "accept",	(__NR_Linux + 35) },
+	{ "access",	(__NR_Linux + 33) },
+	{ "acct",	(__NR_Linux + 51) },
+	{ "acl_get",	(__NR_Linux + 204) },
+	{ "acl_set",	(__NR_Linux + 205) },
+	{ "add_key",	(__NR_Linux + 264) },
+	{ "adjtimex",	(__NR_Linux + 124) },
+	{ "afs_syscall",	(__NR_Linux + 137) },
+	{ "alarm",	(__NR_Linux + 27) },
+	{ "alloc_hugepages",	(__NR_Linux + 220) },
+	{ "attrctl",	(__NR_Linux + 203) },
+	{ "bdflush",	(__NR_Linux + 134) },
+	{ "bind",	(__NR_Linux + 22) },
+	{ "bpf",	(__NR_Linux + 341) },
+	{ "brk",	(__NR_Linux + 45) },
+	{ "capget",	(__NR_Linux + 106) },
+	{ "capset",	(__NR_Linux + 107) },
+	{ "chdir",	(__NR_Linux + 12) },
+	{ "chmod",	(__NR_Linux + 15) },
+	{ "chown",	(__NR_Linux + 180) },
+	{ "chroot",	(__NR_Linux + 61) },
+	{ "clock_adjtime",	(__NR_Linux + 324) },
+	{ "clock_getres",	(__NR_Linux + 257) },
+	{ "clock_gettime",	(__NR_Linux + 256) },
+	{ "clock_nanosleep",	(__NR_Linux + 258) },
+	{ "clock_settime",	(__NR_Linux + 255) },
+	{ "clone",	(__NR_Linux + 120) },
+	{ "close",	(__NR_Linux + 6) },
+	{ "connect",	(__NR_Linux + 31) },
+	{ "create_module",	(__NR_Linux + 127) },
+	{ "creat",	(__NR_Linux + 8) },
+	{ "delete_module",	(__NR_Linux + 129) },
+	{ "dup2",	(__NR_Linux + 63) },
+	{ "dup3",	(__NR_Linux + 312) },
+	{ "dup",	(__NR_Linux + 41) },
+	{ "epoll_create1",	(__NR_Linux + 311) },
+	{ "epoll_create",	(__NR_Linux + 224) },
+	{ "epoll_ctl",	(__NR_Linux + 225) },
+	{ "epoll_pwait",	(__NR_Linux + 297) },
+	{ "epoll_wait",	(__NR_Linux + 226) },
+	{ "eventfd2",	(__NR_Linux + 310) },
+	{ "eventfd",	(__NR_Linux + 304) },
+	{ "execveat",	(__NR_Linux + 342) },
+	{ "execve",	(__NR_Linux + 11) },
+	{ "exit_group",	(__NR_Linux + 222) },
+	{ "exit",	(__NR_Linux + 1) },
+	{ "faccessat",	(__NR_Linux + 287) },
+	{ "fadvise64_64",	(__NR_Linux + 236) },
+	{ "fallocate",	(__NR_Linux + 305) },
+	{ "fanotify_init",	(__NR_Linux + 322) },
+	{ "fanotify_mark",	(__NR_Linux + 323) },
+	{ "fchdir",	(__NR_Linux + 133) },
+	{ "fchmodat",	(__NR_Linux + 286) },
+	{ "fchmod",	(__NR_Linux + 94) },
+	{ "fchownat",	(__NR_Linux + 278) },
+	{ "fchown",	(__NR_Linux + 95) },
+	{ "fcntl64",	(__NR_Linux + 202) },
+	{ "fcntl",	(__NR_Linux + 55) },
+	{ "fdatasync",	(__NR_Linux + 148) },
+	{ "fgetxattr",	(__NR_Linux + 243) },
+	{ "finit_module",	(__NR_Linux + 333) },
+	{ "flistxattr",	(__NR_Linux + 246) },
+	{ "flock",	(__NR_Linux + 143) },
+	{ "fork",	(__NR_Linux + 2) },
+	{ "free_hugepages",	(__NR_Linux + 221) },
+	{ "fremovexattr",	(__NR_Linux + 249) },
+	{ "fsetxattr",	(__NR_Linux + 240) },
+	{ "fstat64",	(__NR_Linux + 112) },
+	{ "fstatat64",	(__NR_Linux + 280) },
+	{ "fstatfs64",	(__NR_Linux + 299) },
+	{ "fstatfs",	(__NR_Linux + 100) },
+	{ "fstat",	(__NR_Linux + 28) },
+	{ "fsync",	(__NR_Linux + 118) },
+	{ "ftruncate64",	(__NR_Linux + 200) },
+	{ "ftruncate",	(__NR_Linux + 93) },
+	{ "futex",	(__NR_Linux + 210) },
+	{ "futimesat",	(__NR_Linux + 279) },
+	{ "getcpu",	(__NR_Linux + 296) },
+	{ "getcwd",	(__NR_Linux + 110) },
+	{ "getdents64",	(__NR_Linux + 201) },
+	{ "getdents",	(__NR_Linux + 141) },
+	{ "getegid",	(__NR_Linux + 50) },
+	{ "geteuid",	(__NR_Linux + 49) },
+	{ "getgid",	(__NR_Linux + 47) },
+	{ "getgroups",	(__NR_Linux + 80) },
+	{ "getitimer",	(__NR_Linux + 105) },
+	{ "get_kernel_syms",	(__NR_Linux + 130) },
+	{ "get_mempolicy",	(__NR_Linux + 261) },
+	{ "getpeername",	(__NR_Linux + 53) },
+	{ "getpgid",	(__NR_Linux + 132) },
+	{ "getpgrp",	(__NR_Linux + 65) },
+	{ "getpid",	(__NR_Linux + 20) },
+	{ "getpmsg",	(__NR_Linux + 196) },
+	{ "getppid",	(__NR_Linux + 64) },
+	{ "getpriority",	(__NR_Linux + 96) },
+	{ "getrandom",	(__NR_Linux + 339) },
+	{ "getresgid",	(__NR_Linux + 171) },
+	{ "getresuid",	(__NR_Linux + 165) },
+	{ "getrlimit",	(__NR_Linux + 76) },
+	{ "get_robust_list",	(__NR_Linux + 290) },
+	{ "getrusage",	(__NR_Linux + 77) },
+	{ "getsid",	(__NR_Linux + 147) },
+	{ "getsockname",	(__NR_Linux + 44) },
+	{ "getsockopt",	(__NR_Linux + 182) },
+	{ "get_thread_area",	(__NR_Linux + 214) },
+	{ "gettid",	(__NR_Linux + 206) },
+	{ "gettimeofday",	(__NR_Linux + 78) },
+	{ "getuid",	(__NR_Linux + 24) },
+	{ "getxattr",	(__NR_Linux + 241) },
+	{ "init_module",	(__NR_Linux + 128) },
+	{ "inotify_add_watch",	(__NR_Linux + 270) },
+	{ "inotify_init1",	(__NR_Linux + 314) },
+	{ "inotify_init",	(__NR_Linux + 269) },
+	{ "inotify_rm_watch",	(__NR_Linux + 271) },
+	{ "io_cancel",	(__NR_Linux + 219) },
+	{ "ioctl",	(__NR_Linux + 54) },
+	{ "io_destroy",	(__NR_Linux + 216) },
+	{ "io_getevents",	(__NR_Linux + 217) },
+	{ "ioprio_get",	(__NR_Linux + 268) },
+	{ "ioprio_set",	(__NR_Linux + 267) },
+	{ "io_setup",	(__NR_Linux + 215) },
+	{ "io_submit",	(__NR_Linux + 218) },
+	{ "kcmp",	(__NR_Linux + 332) },
+	{ "kexec_load",	(__NR_Linux + 300) },
+	{ "keyctl",	(__NR_Linux + 266) },
+	{ "kill",	(__NR_Linux + 37) },
+	{ "lchown",	(__NR_Linux + 16) },
+	{ "lgetxattr",	(__NR_Linux + 242) },
+	{ "linkat",	(__NR_Linux + 283) },
+	{ "link",	(__NR_Linux + 9) },
+	{ "listen",	(__NR_Linux + 32) },
+	{ "listxattr",	(__NR_Linux + 244) },
+	{ "llistxattr",	(__NR_Linux + 245) },
+	{ "lookup_dcookie",	(__NR_Linux + 223) },
+	{ "lremovexattr",	(__NR_Linux + 248) },
+	{ "lseek",	(__NR_Linux + 19) },
+	{ "lsetxattr",	(__NR_Linux + 239) },
+	{ "lstat64",	(__NR_Linux + 198) },
+	{ "lstat",	(__NR_Linux + 84) },
+	{ "madvise",	(__NR_Linux + 119) },
+	{ "mbind",	(__NR_Linux + 260) },
+	{ "memfd_create",	(__NR_Linux + 340) },
+	{ "migrate_pages",	(__NR_Linux + 272) },
+	{ "mincore",	(__NR_Linux + 72) },
+	{ "mkdirat",	(__NR_Linux + 276) },
+	{ "mkdir",	(__NR_Linux + 39) },
+	{ "mknodat",	(__NR_Linux + 277) },
+	{ "mknod",	(__NR_Linux + 14) },
+	{ "mlockall",	(__NR_Linux + 152) },
+	{ "mlock",	(__NR_Linux + 150) },
+	{ "mmap2",	(__NR_Linux + 89) },
+	{ "mmap",	(__NR_Linux + 90) },
+	{ "mount",	(__NR_Linux + 21) },
+	{ "move_pages",	(__NR_Linux + 295) },
+	{ "mprotect",	(__NR_Linux + 125) },
+	{ "mq_getsetattr",	(__NR_Linux + 234) },
+	{ "mq_notify",	(__NR_Linux + 233) },
+	{ "mq_open",	(__NR_Linux + 229) },
+	{ "mq_timedreceive",	(__NR_Linux + 232) },
+	{ "mq_timedsend",	(__NR_Linux + 231) },
+	{ "mq_unlink",	(__NR_Linux + 230) },
+	{ "mremap",	(__NR_Linux + 163) },
+	{ "msgctl",	(__NR_Linux + 191) },
+	{ "msgget",	(__NR_Linux + 190) },
+	{ "msgrcv",	(__NR_Linux + 189) },
+	{ "msgsnd",	(__NR_Linux + 188) },
+	{ "msync",	(__NR_Linux + 144) },
+	{ "munlockall",	(__NR_Linux + 153) },
+	{ "munlock",	(__NR_Linux + 151) },
+	{ "munmap",	(__NR_Linux + 91) },
+	{ "name_to_handle_at",	(__NR_Linux + 325) },
+	{ "nanosleep",	(__NR_Linux + 162) },
+	{ "nfsservctl",	(__NR_Linux + 169) },
+	{ "nice",	(__NR_Linux + 34) },
+	{ "openat",	(__NR_Linux + 275) },
+	{ "open_by_handle_at",	(__NR_Linux + 326) },
+	{ "open",	(__NR_Linux + 5) },
+	{ "pause",	(__NR_Linux + 29) },
+	{ "perf_event_open",	(__NR_Linux + 318) },
+	{ "personality",	(__NR_Linux + 136) },
+	{ "pipe2",	(__NR_Linux + 313) },
+	{ "pipe",	(__NR_Linux + 42) },
+	{ "pivot_root",	(__NR_Linux + 67) },
+	{ "poll",	(__NR_Linux + 168) },
+	{ "ppoll",	(__NR_Linux + 274) },
+	{ "prctl",	(__NR_Linux + 172) },
+	{ "pread64",	(__NR_Linux + 108) },
+	{ "preadv",	(__NR_Linux + 315) },
+	{ "prlimit64",	(__NR_Linux + 321) },
+	{ "process_vm_readv",	(__NR_Linux + 330) },
+	{ "process_vm_writev",	(__NR_Linux + 331) },
+	{ "pselect6",	(__NR_Linux + 273) },
+	{ "ptrace",	(__NR_Linux + 26) },
+	{ "putpmsg",	(__NR_Linux + 197) },
+	{ "pwrite64",	(__NR_Linux + 109) },
+	{ "pwritev",	(__NR_Linux + 316) },
+	{ "query_module",	(__NR_Linux + 167) },
+	{ "quotactl",	(__NR_Linux + 131) },
+	{ "readahead",	(__NR_Linux + 207) },
+	{ "readlinkat",	(__NR_Linux + 285) },
+	{ "readlink",	(__NR_Linux + 85) },
+	{ "read",	(__NR_Linux + 3) },
+	{ "readv",	(__NR_Linux + 145) },
+	{ "reboot",	(__NR_Linux + 88) },
+	{ "recvfrom",	(__NR_Linux + 123) },
+	{ "recvmmsg",	(__NR_Linux + 319) },
+	{ "recvmsg",	(__NR_Linux + 184) },
+	{ "recv",	(__NR_Linux + 98) },
+	{ "remap_file_pages",	(__NR_Linux + 227) },
+	{ "removexattr",	(__NR_Linux + 247) },
+	{ "renameat2",	(__NR_Linux + 337) },
+	{ "renameat",	(__NR_Linux + 282) },
+	{ "rename",	(__NR_Linux + 38) },
+	{ "request_key",	(__NR_Linux + 265) },
+	{ "restart_syscall",	(__NR_Linux + 0) },
+	{ "rmdir",	(__NR_Linux + 40) },
+	{ "rt_sigaction",	(__NR_Linux + 174) },
+	{ "rt_sigpending",	(__NR_Linux + 176) },
+	{ "rt_sigprocmask",	(__NR_Linux + 175) },
+	{ "rt_sigqueueinfo",	(__NR_Linux + 178) },
+	{ "rt_sigreturn",	(__NR_Linux + 173) },
+	{ "rt_sigsuspend",	(__NR_Linux + 179) },
+	{ "rt_sigtimedwait",	(__NR_Linux + 177) },
+	{ "rt_tgsigqueueinfo",	(__NR_Linux + 317) },
+	{ "sched_getaffinity",	(__NR_Linux + 212) },
+	{ "sched_getattr",	(__NR_Linux + 335) },
+	{ "sched_getparam",	(__NR_Linux + 155) },
+	{ "sched_get_priority_max",	(__NR_Linux + 159) },
+	{ "sched_get_priority_min",	(__NR_Linux + 160) },
+	{ "sched_getscheduler",	(__NR_Linux + 157) },
+	{ "sched_rr_get_interval",	(__NR_Linux + 161) },
+	{ "sched_setaffinity",	(__NR_Linux + 211) },
+	{ "sched_setattr",	(__NR_Linux + 334) },
+	{ "sched_setparam",	(__NR_Linux + 154) },
+	{ "sched_setscheduler",	(__NR_Linux + 156) },
+	{ "sched_yield",	(__NR_Linux + 158) },
+	{ "seccomp",	(__NR_Linux + 338) },
+	{ "semctl",	(__NR_Linux + 187) },
+	{ "semget",	(__NR_Linux + 186) },
+	{ "semop",	(__NR_Linux + 185) },
+	{ "semtimedop",	(__NR_Linux + 228) },
+	{ "sendfile64",	(__NR_Linux + 209) },
+	{ "sendfile",	(__NR_Linux + 122) },
+	{ "sendmmsg",	(__NR_Linux + 329) },
+	{ "sendmsg",	(__NR_Linux + 183) },
+	{ "send",	(__NR_Linux + 58) },
+	{ "sendto",	(__NR_Linux + 82) },
+	{ "setdomainname",	(__NR_Linux + 121) },
+	{ "setfsgid",	(__NR_Linux + 139) },
+	{ "setfsuid",	(__NR_Linux + 138) },
+	{ "setgid",	(__NR_Linux + 46) },
+	{ "setgroups",	(__NR_Linux + 81) },
+	{ "sethostname",	(__NR_Linux + 74) },
+	{ "setitimer",	(__NR_Linux + 104) },
+	{ "set_mempolicy",	(__NR_Linux + 262) },
+	{ "setns",	(__NR_Linux + 328) },
+	{ "setpgid",	(__NR_Linux + 57) },
+	{ "setpriority",	(__NR_Linux + 97) },
+	{ "setregid",	(__NR_Linux + 71) },
+	{ "setresgid",	(__NR_Linux + 170) },
+	{ "setresuid",	(__NR_Linux + 164) },
+	{ "setreuid",	(__NR_Linux + 70) },
+	{ "setrlimit",	(__NR_Linux + 75) },
+	{ "set_robust_list",	(__NR_Linux + 289) },
+	{ "setsid",	(__NR_Linux + 66) },
+	{ "setsockopt",	(__NR_Linux + 181) },
+	{ "set_thread_area",	(__NR_Linux + 213) },
+	{ "set_tid_address",	(__NR_Linux + 237) },
+	{ "settimeofday",	(__NR_Linux + 79) },
+	{ "setuid",	(__NR_Linux + 23) },
+	{ "setxattr",	(__NR_Linux + 238) },
+	{ "sgetmask",	(__NR_Linux + 68) },
+	{ "shmat",	(__NR_Linux + 192) },
+	{ "shmctl",	(__NR_Linux + 195) },
+	{ "shmdt",	(__NR_Linux + 193) },
+	{ "shmget",	(__NR_Linux + 194) },
+	{ "shutdown",	(__NR_Linux + 117) },
+	{ "sigaltstack",	(__NR_Linux + 166) },
+	{ "signalfd4",	(__NR_Linux + 309) },
+	{ "signalfd",	(__NR_Linux + 302) },
+	{ "signal",	(__NR_Linux + 48) },
+	{ "sigpending",	(__NR_Linux + 73) },
+	{ "sigprocmask",	(__NR_Linux + 126) },
+	{ "socket",	(__NR_Linux + 17) },
+	{ "socketpair",	(__NR_Linux + 56) },
+	{ "splice",	(__NR_Linux + 291) },
+	{ "ssetmask",	(__NR_Linux + 69) },
+	{ "stat64",	(__NR_Linux + 101) },
+	{ "statfs64",	(__NR_Linux + 298) },
+	{ "statfs",	(__NR_Linux + 99) },
+	{ "stat",	(__NR_Linux + 18) },
+	{ "stime",	(__NR_Linux + 25) },
+	{ "swapoff",	(__NR_Linux + 115) },
+	{ "swapon",	(__NR_Linux + 87) },
+	{ "symlinkat",	(__NR_Linux + 284) },
+	{ "symlink",	(__NR_Linux + 83) },
+	{ "sync_file_range",	(__NR_Linux + 292) },
+	{ "syncfs",	(__NR_Linux + 327) },
+	{ "sync",	(__NR_Linux + 36) },
+	{ "sysfs",	(__NR_Linux + 135) },
+	{ "sysinfo",	(__NR_Linux + 116) },
+	{ "syslog",	(__NR_Linux + 103) },
+	{ "tee",	(__NR_Linux + 293) },
+	{ "tgkill",	(__NR_Linux + 259) },
+	{ "time",	(__NR_Linux + 13) },
+	{ "timer_create",	(__NR_Linux + 250) },
+	{ "timer_delete",	(__NR_Linux + 254) },
+	{ "timerfd_create",	(__NR_Linux + 306) },
+	{ "timerfd_gettime",	(__NR_Linux + 308) },
+	{ "timerfd",	(__NR_Linux + 303) },
+	{ "timerfd_settime",	(__NR_Linux + 307) },
+	{ "timer_getoverrun",	(__NR_Linux + 253) },
+	{ "timer_gettime",	(__NR_Linux + 252) },
+	{ "timer_settime",	(__NR_Linux + 251) },
+	{ "times",	(__NR_Linux + 43) },
+	{ "tkill",	(__NR_Linux + 208) },
+	{ "truncate64",	(__NR_Linux + 199) },
+	{ "truncate",	(__NR_Linux + 92) },
+	{ "umask",	(__NR_Linux + 60) },
+	{ "umount2",	(__NR_Linux + 52) },
+	{ "uname",	(__NR_Linux + 59) },
+	{ "unlinkat",	(__NR_Linux + 281) },
+	{ "unlink",	(__NR_Linux + 10) },
+	{ "unshare",	(__NR_Linux + 288) },
+	{ "uselib",	(__NR_Linux + 86) },
+	{ "ustat",	(__NR_Linux + 62) },
+	{ "utime",	(__NR_Linux + 30) },
+	{ "utimensat",	(__NR_Linux + 301) },
+	{ "utimes",	(__NR_Linux + 336) },
+	{ "vfork",	(__NR_Linux + 113) },
+	{ "vhangup",	(__NR_Linux + 111) },
+	{ "vmsplice",	(__NR_Linux + 294) },
+	{ "vserver",	(__NR_Linux + 263) },
+	{ "wait4",	(__NR_Linux + 114) },
+	{ "waitid",	(__NR_Linux + 235) },
+	{ "waitpid",	(__NR_Linux + 7) },
+	{ "write",	(__NR_Linux + 4) },
+	{ "writev",	(__NR_Linux + 146) },
+	{ NULL, __NR_SCMP_ERROR },
+};
+
+/**
+ * Resolve a syscall name to a number
+ * @param name the syscall name
+ *
+ * Resolve the given syscall name to the syscall number using the syscall table.
+ * Returns the syscall number on success, including negative pseudo syscall
+ * numbers; returns __NR_SCMP_ERROR on failure.
+ *
+ */
+int parisc_syscall_resolve_name(const char *name)
+{
+	unsigned int iter;
+	const struct arch_syscall_def *table = parisc_syscall_table;
+
+	/* XXX - plenty of room for future improvement here */
+	for (iter = 0; table[iter].name != NULL; iter++) {
+		if (strcmp(name, table[iter].name) == 0)
+			return table[iter].num;
+	}
+
+	return __NR_SCMP_ERROR;
+}
+
+/**
+ * Resolve a syscall number to a name
+ * @param num the syscall number
+ *
+ * Resolve the given syscall number to the syscall name using the syscall table.
+ * Returns a pointer to the syscall name string on success, including pseudo
+ * syscall names; returns NULL on failure.
+ *
+ */
+const char *parisc_syscall_resolve_num(int num)
+{
+	unsigned int iter;
+	const struct arch_syscall_def *table = parisc_syscall_table;
+
+	/* XXX - plenty of room for future improvement here */
+	for (iter = 0; table[iter].num != __NR_SCMP_ERROR; iter++) {
+		if (num == table[iter].num)
+			return table[iter].name;
+	}
+
+	return NULL;
+}
+
+/**
+ * Iterate through the syscall table and return the syscall name
+ * @param spot the offset into the syscall table
+ *
+ * Return the syscall name at position @spot or NULL on failure.  This function
+ * should only ever be used internally by libseccomp.
+ *
+ */
+const char *parisc_syscall_iterate_name(unsigned int spot)
+{
+	/* XXX - no safety checks here */
+	return parisc_syscall_table[spot].name;
+}
diff --git a/src/arch-parisc.c b/src/arch-parisc.c
new file mode 100644
index 0000000..6407f8a
--- /dev/null
+++ b/src/arch-parisc.c
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2016
+ * Author: Helge Deller <deller@gmx.de>
+ */
+
+#include <stdlib.h>
+#include <errno.h>
+#include <linux/audit.h>
+
+#include "arch.h"
+#include "arch-parisc.h"
+
+const struct arch_def arch_def_parisc = {
+	.token = SCMP_ARCH_PARISC,
+	.token_bpf = AUDIT_ARCH_PARISC,
+	.size = ARCH_SIZE_32,
+	.endian = ARCH_ENDIAN_BIG,
+	.syscall_resolve_name = parisc_syscall_resolve_name,
+	.syscall_resolve_num = parisc_syscall_resolve_num,
+	.syscall_rewrite = NULL,
+	.rule_add = NULL,
+};
diff --git a/src/arch-parisc.h b/src/arch-parisc.h
new file mode 100644
index 0000000..b9fe1df
--- /dev/null
+++ b/src/arch-parisc.h
@@ -0,0 +1,38 @@
+/**
+ * Enhanced Seccomp PARISC Specific Code
+ *
+ * Copyright (c) 2016 Helge Deller <deller@gmx.de>
+ *
+ */
+
+/*
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <http://www.gnu.org/licenses>.
+ */
+
+#ifndef _ARCH_PARISC_H
+#define _ARCH_PARISC_H
+
+#include <inttypes.h>
+
+#include "arch.h"
+#include "system.h"
+
+extern const struct arch_def arch_def_parisc;
+extern const struct arch_def arch_def_parisc64;
+
+int parisc_syscall_resolve_name(const char *name);
+const char *parisc_syscall_resolve_num(int num);
+
+const char *parisc_syscall_iterate_name(unsigned int spot);
+
+#endif
diff --git a/src/arch-parisc64.c b/src/arch-parisc64.c
new file mode 100644
index 0000000..b75a182
--- /dev/null
+++ b/src/arch-parisc64.c
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2016
+ * Author: Helge Deller <deller@gmx.de>
+*/
+
+#include <stdlib.h>
+#include <errno.h>
+#include <linux/audit.h>
+
+#include "arch.h"
+#include "arch-parisc.h"
+
+const struct arch_def arch_def_parisc64 = {
+	.token = SCMP_ARCH_PARISC64,
+	.token_bpf = AUDIT_ARCH_PARISC64,
+	.size = ARCH_SIZE_64,
+	.endian = ARCH_ENDIAN_BIG,
+	.syscall_resolve_name = parisc_syscall_resolve_name,
+	.syscall_resolve_num = parisc_syscall_resolve_num,
+	.syscall_rewrite = NULL,
+	.rule_add = NULL,
+};
diff --git a/src/arch-syscall-dump.c b/src/arch-syscall-dump.c
index 636fd9a..c95b899 100644
--- a/src/arch-syscall-dump.c
+++ b/src/arch-syscall-dump.c
@@ -38,6 +38,7 @@
 #include "arch-mips64.h"
 #include "arch-mips64n32.h"
 #include "arch-aarch64.h"
+#include "arch-parisc.h"
 #include "arch-ppc.h"
 #include "arch-ppc64.h"
 #include "arch-s390.h"
@@ -116,6 +117,10 @@ int main(int argc, char *argv[])
 		case SCMP_ARCH_MIPSEL64N32:
 			sys_name = mips64n32_syscall_iterate_name(iter);
 			break;
+		case SCMP_ARCH_PARISC:
+		case SCMP_ARCH_PARISC64:
+			sys_name = parisc_syscall_iterate_name(iter);
+			break;
 		case SCMP_ARCH_PPC:
 			sys_name = ppc_syscall_iterate_name(iter);
 			break;
diff --git a/src/arch.c b/src/arch.c
index 0f24d1c..f5a898d 100644
--- a/src/arch.c
+++ b/src/arch.c
@@ -38,6 +38,7 @@
 #include "arch-mips.h"
 #include "arch-mips64.h"
 #include "arch-mips64n32.h"
+#include "arch-parisc.h"
 #include "arch-ppc.h"
 #include "arch-ppc64.h"
 #include "arch-s390.h"
@@ -79,6 +80,10 @@ const struct arch_def *arch_def_native = &arch_def_mips64n32;
 #elif __MIPSEL__
 const struct arch_def *arch_def_native = &arch_def_mipsel64n32;
 #endif /* _MIPS_SIM_NABI32 */
+#elif __hppa64__ /* hppa64 must be checked before hppa */
+const struct arch_def *arch_def_native = &arch_def_parisc64;
+#elif __hppa__
+const struct arch_def *arch_def_native = &arch_def_parisc;
 #elif __PPC64__
 #ifdef __BIG_ENDIAN__
 const struct arch_def *arch_def_native = &arch_def_ppc64;
@@ -139,6 +144,10 @@ const struct arch_def *arch_def_lookup(uint32_t token)
 		return &arch_def_mips64n32;
 	case SCMP_ARCH_MIPSEL64N32:
 		return &arch_def_mipsel64n32;
+	case SCMP_ARCH_PARISC:
+		return &arch_def_parisc;
+	case SCMP_ARCH_PARISC64:
+		return &arch_def_parisc64;
 	case SCMP_ARCH_PPC:
 		return &arch_def_ppc;
 	case SCMP_ARCH_PPC64:
@@ -185,6 +194,10 @@ const struct arch_def *arch_def_lookup_name(const char *arch_name)
 		return &arch_def_mips64n32;
 	else if (strcmp(arch_name, "mipsel64n32") == 0)
 		return &arch_def_mipsel64n32;
+	else if (strcmp(arch_name, "parisc64") == 0)
+		return &arch_def_parisc64;
+	else if (strcmp(arch_name, "parisc") == 0)
+		return &arch_def_parisc;
 	else if (strcmp(arch_name, "ppc") == 0)
 		return &arch_def_ppc;
 	else if (strcmp(arch_name, "ppc64") == 0)
diff --git a/src/gen_pfc.c b/src/gen_pfc.c
index 99c3297..b9c122e 100644
--- a/src/gen_pfc.c
+++ b/src/gen_pfc.c
@@ -71,6 +71,10 @@ static const char *_pfc_arch(const struct arch_def *arch)
 		return "mips64n32";
 	case SCMP_ARCH_MIPSEL64N32:
 		return "mipsel64n32";
+	case SCMP_ARCH_PARISC:
+		return "parisc";
+	case SCMP_ARCH_PARISC64:
+		return "parisc64";
 	case SCMP_ARCH_PPC64:
 		return "ppc64";
 	case SCMP_ARCH_PPC64LE:
diff --git a/src/python/libseccomp.pxd b/src/python/libseccomp.pxd
index 15c94f8..500da15 100644
--- a/src/python/libseccomp.pxd
+++ b/src/python/libseccomp.pxd
@@ -43,6 +43,8 @@ cdef extern from "seccomp.h":
         SCMP_ARCH_MIPSEL
         SCMP_ARCH_MIPSEL64
         SCMP_ARCH_MIPSEL64N32
+        SCMP_ARCH_PARISC
+        SCMP_ARCH_PARISC64
         SCMP_ARCH_PPC
         SCMP_ARCH_PPC64
         SCMP_ARCH_PPC64LE
diff --git a/src/python/seccomp.pyx b/src/python/seccomp.pyx
index c87bc3f..cb17642 100644
--- a/src/python/seccomp.pyx
+++ b/src/python/seccomp.pyx
@@ -147,6 +147,8 @@ cdef class Arch:
     MIPSEL - MIPS little endian O32 ABI
     MIPSEL64 - MIPS little endian 64-bit ABI
     MIPSEL64N32 - MIPS little endian N32 ABI
+    PARISC - 32-bit PA-RISC
+    PARISC64 - 64-bit PA-RISC
     PPC64 - 64-bit PowerPC
     PPC - 32-bit PowerPC
     """
@@ -165,6 +167,8 @@ cdef class Arch:
     MIPSEL = libseccomp.SCMP_ARCH_MIPSEL
     MIPSEL64 = libseccomp.SCMP_ARCH_MIPSEL64
     MIPSEL64N32 = libseccomp.SCMP_ARCH_MIPSEL64N32
+    PARISC = libseccomp.SCMP_ARCH_PARISC
+    PARISC64 = libseccomp.SCMP_ARCH_PARISC64
     PPC = libseccomp.SCMP_ARCH_PPC
     PPC64 = libseccomp.SCMP_ARCH_PPC64
     PPC64LE = libseccomp.SCMP_ARCH_PPC64LE
@@ -205,6 +209,10 @@ cdef class Arch:
                 self._token = libseccomp.SCMP_ARCH_MIPSEL64
             elif arch == libseccomp.SCMP_ARCH_MIPSEL64N32:
                 self._token = libseccomp.SCMP_ARCH_MIPSEL64N32
+            elif arch == libseccomp.SCMP_ARCH_PARISC:
+                self._token = libseccomp.SCMP_ARCH_PARISC
+            elif arch == libseccomp.SCMP_ARCH_PARISC64:
+                self._token = libseccomp.SCMP_ARCH_PARISC64
             elif arch == libseccomp.SCMP_ARCH_PPC:
                 self._token = libseccomp.SCMP_ARCH_PPC
             elif arch == libseccomp.SCMP_ARCH_PPC64:
diff --git a/tests/26-sim-arch_all_be_basic.c b/tests/26-sim-arch_all_be_basic.c
index d2c191c..d31ce12 100644
--- a/tests/26-sim-arch_all_be_basic.c
+++ b/tests/26-sim-arch_all_be_basic.c
@@ -52,6 +52,12 @@ int main(int argc, char *argv[])
 	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("mips64n32"));
 	if (rc != 0)
 		goto out;
+	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("parisc"));
+	if (rc != 0)
+		goto out;
+	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("parisc64"));
+	if (rc != 0)
+		goto out;
 	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("ppc"));
 	if (rc != 0)
 		goto out;
diff --git a/tests/26-sim-arch_all_be_basic.py b/tests/26-sim-arch_all_be_basic.py
index b0b660a..3a177b4 100755
--- a/tests/26-sim-arch_all_be_basic.py
+++ b/tests/26-sim-arch_all_be_basic.py
@@ -33,6 +33,8 @@ def test(args):
     f.add_arch(Arch("mips"))
     f.add_arch(Arch("mips64"))
     f.add_arch(Arch("mips64n32"))
+    f.add_arch(Arch("parisc"))
+    f.add_arch(Arch("parisc64"))
     f.add_arch(Arch("ppc"))
     f.add_arch(Arch("ppc64"))
     f.add_arch(Arch("s390"))
diff --git a/tests/regression b/tests/regression
index 53d26b2..b56b9c3 100755
--- a/tests/regression
+++ b/tests/regression
@@ -28,6 +28,7 @@ GLBL_ARCH_LE_SUPPORT=" \
 	ppc64le"
 GLBL_ARCH_BE_SUPPORT=" \
 	mips mips64 mips64n32 \
+	parisc parisc64 \
 	ppc ppc64 \
 	s390 s390x"
 
@@ -701,7 +702,7 @@ function run_test_live() {
 
 	# setup the arch specific return values
 	case "$arch" in
-	x86|x86_64|x32|arm|aarch64|ppc|ppc64|ppc64le|ppc|s390|s390x)
+	x86|x86_64|x32|arm|aarch64|parisc|parisc64|ppc|ppc64|ppc64le|ppc|s390|s390x)
 		rc_kill=159
 		rc_allow=160
 		rc_trap=161
@@ -772,6 +773,7 @@ function run_test() {
 		if check_deps valgrind; then
 			run_test_bpf_valgrind "$testnumstr" "$3"
 		else
+			print_result $testnumstr "SKIPPED" "valgrind not installed"
 			stats_skipped=$(($stats_skipped+1))
 		fi
 	elif [[ "$4" == "live" ]]; then
diff --git a/tools/scmp_arch_detect.c b/tools/scmp_arch_detect.c
index 4b452d1..ad43f2d 100644
--- a/tools/scmp_arch_detect.c
+++ b/tools/scmp_arch_detect.c
@@ -99,6 +99,12 @@ int main(int argc, char *argv[])
 		case SCMP_ARCH_MIPSEL64N32:
 			printf("mipsel64n32\n");
 			break;
+		case SCMP_ARCH_PARISC:
+			printf("parisc\n");
+			break;
+		case SCMP_ARCH_PARISC64:
+			printf("parisc64\n");
+			break;
 		case SCMP_ARCH_PPC:
 			printf("ppc\n");
 			break;
diff --git a/tools/scmp_bpf_sim.c b/tools/scmp_bpf_sim.c
index a0cf6d1..3d3204a 100644
--- a/tools/scmp_bpf_sim.c
+++ b/tools/scmp_bpf_sim.c
@@ -265,6 +265,10 @@ int main(int argc, char *argv[])
 				arch = AUDIT_ARCH_MIPS64N32;
 			else if (strcmp(optarg, "mipsel64n32") == 0)
 				arch = AUDIT_ARCH_MIPSEL64N32;
+			else if (strcmp(optarg, "parisc") == 0)
+				arch = AUDIT_ARCH_PARISC;
+			else if (strcmp(optarg, "parisc64") == 0)
+				arch = AUDIT_ARCH_PARISC64;
 			else if (strcmp(optarg, "ppc") == 0)
 				arch = AUDIT_ARCH_PPC;
 			else if (strcmp(optarg, "ppc64") == 0)
diff --git a/tools/util.c b/tools/util.c
index cc48647..7122335 100644
--- a/tools/util.c
+++ b/tools/util.c
@@ -62,6 +62,10 @@
 #elif __MIPSEL__
 #define ARCH_NATIVE		AUDIT_ARCH_MIPSEL64N32
 #endif /* _MIPS_SIM_NABI32 */
+#elif __hppa64__
+#define ARCH_NATIVE		AUDIT_ARCH_PARISC64
+#elif __hppa__
+#define ARCH_NATIVE		AUDIT_ARCH_PARISC
 #elif __PPC64__
 #ifdef __BIG_ENDIAN__
 #define ARCH_NATIVE		AUDIT_ARCH_PPC64

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Am Samstag, 9. April 2016, 08:26:14 schrieb Helge Deller:
> This patch simplifies the code for get_user() and put_user() a lot.
> 
> Instead of accessing kernel memory (%sr0) and userspace memory (%sr3)
> hard-coded in the assembler instruction, we now preload %sr2 with either
> %sr0 (for accessing KERNEL_DS) or with sr3 (to access USER_DS) and
> use %sr2 in the load directly.
> 
> The generated code avoids a branch and speeds up execution by generating
> less assembler instructions.

I have put this on my C3600 (Linux 4.5.0, 32 bit kernel) and I see no negative 
effects.

Eike
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From - Thu Nov 08 21:38:42 2018
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From: Rolf Eike Beer <eike@sf-mail.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Simplify and speed up get_user() and put_user()
Date: Mon, 11 Apr 2016 09:38:16 +0200
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Am 2016-04-11 08:16, schrieb Rolf Eike Beer:
> Am Samstag, 9. April 2016, 08:26:14 schrieb Helge Deller:
>> This patch simplifies the code for get_user() and put_user() a lot.
>> 
>> Instead of accessing kernel memory (%sr0) and userspace memory (%sr3)
>> hard-coded in the assembler instruction, we now preload %sr2 with 
>> either
>> %sr0 (for accessing KERNEL_DS) or with sr3 (to access USER_DS) and
>> use %sr2 in the load directly.
>> 
>> The generated code avoids a branch and speeds up execution by 
>> generating
>> less assembler instructions.
> 
> I have put this on my C3600 (Linux 4.5.0, 32 bit kernel) and I see no 
> negative
> effects.

It's not 4.5.0, it's 4.4.6.

Eike
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From: Rolf Eike Beer <eike@sf-mail.de>
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Subject: Re: [PATCH] parisc: Simplify and speed up get_user() and put_user()
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Am Samstag, 9. April 2016, 08:26:14 schrieb Helge Deller:
> This patch simplifies the code for get_user() and put_user() a lot.
> 
> Instead of accessing kernel memory (%sr0) and userspace memory (%sr3)
> hard-coded in the assembler instruction, we now preload %sr2 with either
> %sr0 (for accessing KERNEL_DS) or with sr3 (to access USER_DS) and
> use %sr2 in the load directly.
> 
> The generated code avoids a branch and speeds up execution by generating
> less assembler instructions.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>

Tested-by: Rolf Eike Beer <eike-kernel@sf-tec.de>

Eike
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From - Thu Nov 08 21:38:42 2018
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Subject: Re: [PATCH v2 02/30] Include generic parity.h in some
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From: Simone Mannori <simone.mannori@gmail.com>
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Dear All,

looking for a solution for a presistent issue (lack of any hardware
acceleration support for X11 because error during the loading of the
"radeon" or "nouveau" kernel module at boot time) I have bought a PCI
video card: ATI RADEON 9300 128M PCI. This test has been suggested by
many guys on several mailing list.

NOTA BENE: make sure that the PCI video card is 3.3V type or is an
"universal" (3.3V and 5.0V) model like mine.

I have put this video card leaving the ATI FireCL X1 installed; I have
removed the AGP video card; I have moved the PCI video card on
different positions.

No matter what I do, the c8000 is unable to boot.

Using the serial console, I have his message

<Cpu0> 0e000e7a00e00000  600601005d441002  CC_IODISC_PCI_DEVICE_CONFIG
pci_bus_walk line 2878 - bridge aperture too big
<Cpu0> 160012cb00e00000  0000000000000000  CC_MPS_SLAV.......
.......
Then the system boot process STOPs:
<Cpu1> e000108401e00000  0000000000000000  CC_BOOT_BOOT_FAILURE
<Cpu1> 030010d501e00000  0000000000000000  CC_CPU_STOP

This problem lie in the internal c8000 "system bios/diagnostic" code,
Linux boot process, kernel and modules are not involved.

Finally, the people that have suggested this test have not tried to make it.

Question: "Someone has tried with a NVDIA or MATROX PCI video cards?"

Thanks in advance for your help.

   Simone Mannori - ITALY
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From - Thu Nov 08 21:38:42 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: PCI video card hangs during system boot
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Am Dienstag, 12. April 2016, 10:20:17 schrieb Simone Mannori:
> Dear All,
> 
> looking for a solution for a presistent issue (lack of any hardware
> acceleration support for X11 because error during the loading of the
> "radeon" or "nouveau" kernel module at boot time) I have bought a PCI
> video card: ATI RADEON 9300 128M PCI. This test has been suggested by
> many guys on several mailing list.
> 
> NOTA BENE: make sure that the PCI video card is 3.3V type or is an
> "universal" (3.3V and 5.0V) model like mine.
> 
> I have put this video card leaving the ATI FireCL X1 installed; I have
> removed the AGP video card; I have moved the PCI video card on
> different positions.
> 
> No matter what I do, the c8000 is unable to boot.
> 
> Using the serial console, I have his message
> 
> <Cpu0> 0e000e7a00e00000  600601005d441002  CC_IODISC_PCI_DEVICE_CONFIG
> pci_bus_walk line 2878 - bridge aperture too big

This probably means the PCI BAR of the card is too big, i.e. it has too much 
RAM. Looks like the firmware can't handle that. I once had the same thing on a 
C3600, IIRC with a 128MB BAR.

Greetings,

Eike
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From - Thu Nov 08 21:38:42 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: PCI video card hangs during system boot
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On 2016-04-12 12:55 PM, Rolf Eike Beer wrote:
> Am Dienstag, 12. April 2016, 10:20:17 schrieb Simone Mannori:
>> >Dear All,
>> >
>> >looking for a solution for a presistent issue (lack of any hardware
>> >acceleration support for X11 because error during the loading of the
>> >"radeon" or "nouveau" kernel module at boot time) I have bought a PCI
>> >video card: ATI RADEON 9300 128M PCI. This test has been suggested by
>> >many guys on several mailing list.
>> >
>> >NOTA BENE: make sure that the PCI video card is 3.3V type or is an
>> >"universal" (3.3V and 5.0V) model like mine.
>> >
>> >I have put this video card leaving the ATI FireCL X1 installed; I have
>> >removed the AGP video card; I have moved the PCI video card on
>> >different positions.
>> >
>> >No matter what I do, the c8000 is unable to boot.
>> >
>> >Using the serial console, I have his message
>> >
>> ><Cpu0> 0e000e7a00e00000  600601005d441002  CC_IODISC_PCI_DEVICE_CONFIG
>> >pci_bus_walk line 2878 - bridge aperture too big
> This probably means the PCI BAR of the card is too big, i.e. it has too much
> RAM. Looks like the firmware can't handle that. I once had the same thing on a
> C3600, IIRC with a 128MB BAR.
Maybe pulling FireGL X1 will help:
https://lists.freedesktop.org/archives/dri-users/2015-February/000034.html

Dave

-- 
John David Anglin  dave.anglin@bell.net

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> Maybe pulling FireGL X1 will help:
> https://lists.freedesktop.org/archives/dri-users/2015-February/000034.html

Already done Dave: same error message during system boot. Just to be
clear, the error message is also indipendent by the PCI slot position.
Thanks for the hint, anyway.

My conclusion is that the "vanilla-PC" ATI RADEON 9200 128M PCI is not
"BIOS compatible" with the c8000.

Simone Mannori - ITALY
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Subject: Re: [Nouveau] PA-RISC (hppa) video cards init failure loading the
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Dear Ilia,

unfortunately, I have only bad news to report:

- the nouveau options that you have suggested does not produce the
expected resuls; nouveau.config=NvAGP=0 (I'm using Linux blsw
4.4.0-1-parisc64-smp #1 SMP Debian 4.4.6-1 (2016-03-17) parisc64
GNU/Linux) and nouveau.vram_pushbuf=1 does not fix the issue about
NVIDA AGP init. The error is still there and the video card works in
frame buffer mode only

- I have tried another, more recent, NVIDIA AGP card (NV36GL [Quadro
FX 1100] (rev a1)): this model, with or without options, is not able
to make X11 works.

- I have tried also a PCI video card (ATI 9200), but with this model
the c8000 is not ble to complete the internal diagnostic,so the Linux
boot does not start

> <Cpu0> 0e000e7a00e00000  600601005d441002  CC_IODISC_PCI_DEVICE_CONFIG
> pci_bus_walk line 2878 - bridge aperture too big

then ..... the system boot process STOPs:
<Cpu1> e000108401e00000  0000000000000000  CC_BOOT_BOOT_FAILURE
<Cpu1> 030010d501e00000  0000000000000000  CC_CPU_STOP

The problem is elsewhere. "TTM" module ? I'm perplexed and confused.

Helge Deller told me that the hppa linux branch does not have a
working kgdb support, therefore my only chance to find and fix this
_very_nasty_ bug is insert some "printk" and hope to be able to find
the source of the issue.

Any idea ?

Thanks in advance for the help

   Simone Mannori - ITALY



On 4 April 2016 at 04:18, Ilia Mirkin <imirkin@alum.mit.edu> wrote:
> Not sure about the radeon issue, but
>
> "DRM: GPU lockup - switching to software fbcon"
>
> basically means "the CPU isn't able to submit commands, or the GPU
> isn't executing the commands". Basically the GPU can only have so many
> commands outstanding [well, command buffers], and we hit that limit.
> From what I understand, PA-RISC has a "funny" architecture that is
> very unlike x86 in terms of memory coherency, and is thus more likely
> to hit issues that don't exist on other architectures. Perhaps you can
> summarize the key points of oddness? Perhaps there's some debug
> "disable caches" mode or something? Also note that nouveau won't work
> well on an architecture with a non-4K page size. Not sure if that's
> the situation for you.
>
> I see that it's using AGP - there's a high chance that something
> AGP-related is broken - try booting with nouveau.config=NvAGP=0 (or
> nouveau.agpmode=0 for pre-4.3 kernels).
>
> Perhaps it has issues DMA'ing the command buffer from system memory,
> we can try forcing the pushbuf to be in vram - boot with
> nouveau.vram_pushbuf=1 .
>
> If there are PCI slots and you have a PCI video card handy, I'd
> definitely try that too.
>
> Good luck,
>
>   -ilia
>
> On Sun, Apr 3, 2016 at 3:51 AM, Simone Mannori <simone.mannori@gmail.com> wrote:
>> Dear "nouveau" developers,
>>
>> I know that many very competent guys have already spent a lot of time
>> and efforts on this issue without success. I have started to play with
>> "hppa" two weeks ago and, with the support of the linux-parisc mailing
>> list people, now I have a - almost fully - working workstation (hp
>> c8000).
>>
>> Everythings work perfectly BUT the video card. No matter the model,
>> type, driver, etc. the results are always the same: a very slow frame
>> buffer mode only.
>>
>> I'm forwarding the results of my investigations with the hope that
>> someone of you will help me to find the right path to fix this issue.
>>
>> Thanks in advance for your help.
>>
>>   Simone Mannori - Italy
>>
>> //**------------------------------------------------------------------------------------------------------------
>>
>> ---------- Forwarded message ----------
>> From: Simone Mannori <simone.mannori@gmail.com>
>> Date: 3 April 2016 at 09:34
>> Subject: Video cards init failure loading the device driver kernel module
>> To: John David Anglin <dave.anglin@bell.net>
>> Cc: Helge Deller <deller@gmx.de>, Graham Gower
>> <graham.gower@gmail.com>, linux-parisc <linux-parisc@vger.kernel.org>
>>
>>
>> Dear All,
>>
>> following you suggestions, now I have an - almost - perfectly working
>> hp c8000 workstation.
>>
>> Mission accomplished? Not exactly: despite a lot of efforts, the video
>> card section is still not fully operative. Let me resume the
>> situation.
>>
>> I'm using a c8000 with two PA-8800 and Debian 8.0, kernel:
>>
>> Linux version 4.4.0-1-parisc64-smp (debian-kernel@lists.debian.org)
>> (gcc version 4.9.3 (GCC) ) #1 SMP Debian 4.4.6-1 (2016-03-17)
>>
>> I have two very different AGP video cards (ATI FireGL T2 and NVIDIA
>> QUADRO MXR) that have the same issue, despite the two complety
>> different drivers ("radeon" and "nouveau"). The full logs are in
>> bottom of this post. Just to make a long history short:
>>
>> ATI FIRE GL T2 ("radeon")
>> [   47.836000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
>> failed (scratch(0x15E4)=0xCAFEDEAD)
>> [   47.948000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
>> working (-22).
>> [   48.036000] radeon 0000:80:00.0: failed initializing CP (-22).
>> [   48.036000] radeon 0000:80:00.0: Disabling GPU acceleration
>>
>> NVIDIA QUADRO MXR ("nouveau")
>> [   54.388000] nouveau 0000:80:00.0: DRM: GPU lockup - switching to
>> software fbcon
>> [   54.684000] nouveau 0000:80:00.0: fb0: nouveaufb frame buffer device
>> [   54.784000] [drm] Initialized nouveau 1.3.1 20120801 for
>> 0000:80:00.0 on minor 0
>>
>> Looking inside the posts on many developers mailing lists, I see that
>> most of the efforts have been focused on the video device drivers init
>> code. I have tried to force the video drivers using the "modeset"
>> parameter without success. I have tried also to boot without video
>> driver, then load it manually using "modprobe". No way: the results
>> are the same.
>>
>> "lsmod" tell me that "radeon"/"nouveau" are used by the "ttm" module
>> and they cannot be removed (despite the "- r --force" modprobe
>> parameters).
>>
>> Let suppose for a moment that the issue is NOT inside the video driver
>> but in the "ttm" module: something is not fully correct in the
>> initialization of the ZX1 chipset, therefore the video driver code go
>> crazy because cannot match the video card with the chipset.
>>
>> The only way that I know to investigate this issue is to recompile the
>> kernel with debug support and execute "single step"/breakpoint the
>> code that initialize the video card and the chipset near the zone of
>> the error message.
>>
>> Question: "What are the deb packages that I need to install to
>> recompile the  4.4.0-1-parisc64-smp kernel (or another kernel version
>> suitable for this investigation) ?
>>
>> Thanks in advance for you help
>>
>>    Simone Mannori - Italy
>>
>> //**-----------------------------------------------------------------------------------------------------------------
>>
>> ATI FIRE GL T2
>> [   45.460000] [drm] radeon kernel modesetting enabled.
>> [   45.576000] radeon 0000:80:00.0: enabling SERR and PARITY (0107 -> 0147)
>> [   45.660000] [drm] initializing kernel modesetting (RV350
>> 0x1002:0x4154 0x1002:0x0002).
>> [   45.812000] [drm] register mmio base: 0xC8020000
>> [   45.868000] [drm] register mmio size: 65536
>> [   46.084000] radeon 0000:80:00.0: putting AGP V3 device into 8x mode
>> [   46.160000] radeon 0000:80:00.0: GTT: 512M 0x60000000 - 0x7FFFFFFF
>> [   46.236000] [drm] Generation 2 PCI interface, using max accessible memory
>> [   46.316000] radeon 0000:80:00.0: VRAM: 128M 0xFFFFFFFFC0000000 -
>> 0xFFFFFFFFC7FFFFFF (128M used)
>> [   46.420000] [drm] Detected VRAM RAM=128M, BAR=128M
>> [   46.476000] [drm] RAM width 128bits DDR
>> [   46.524000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
>> [   46.604000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
>> [   46.680000] [TTM] Initializing pool allocator
>> [   46.732000] [drm] radeon: 128M of VRAM memory ready
>> [   46.792000] [drm] radeon: 512M of GTT memory ready.
>> [   46.852000] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
>> [   46.944000] radeon 0000:80:00.0: WB disabled
>> [   46.996000] radeon 0000:80:00.0: fence driver on ring 0 use gpu
>> addr 0x0000000060000000 and cpu addr 0x0000000011279000
>> [   47.124000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>> [   47.204000] [drm] Driver supports precise vblank timestamp query.
>> [   47.276000] [drm] radeon: irq initialized.
>> [   47.328000] [drm] Loading R300 Microcode
>> [   47.468000] radeon 0000:80:00.0: firmware: direct-loading firmware
>> radeon/R300_cp.bin
>> [   47.584000] [drm] radeon: ring at 0x0000000060001000
>> [   47.836000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
>> failed (scratch(0x15E4)=0xCAFEDEAD)
>> [   47.948000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
>> working (-22).
>> [   48.036000] radeon 0000:80:00.0: failed initializing CP (-22).
>> [   48.036000] radeon 0000:80:00.0: Disabling GPU acceleration
>> [  OK  ] Found device ST373207LW 2.
>> [   48.236000] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle
>> timeout, shutting down CP.
>> [   48.384000] [drm] radeon: cp finalized
>> [   48.448000] [drm] radeon: cp finalized
>> [   48.496000] [TTM] Finalizing pool allocator
>> [   48.544000] [TTM] Zone  kernel: Used memory at exit: 0 kiB
>> [   48.612000] [TTM] Zone   dma32: Used memory at exit: 0 kiB
>> [   48.676000] [drm] radeon: ttm finalized
>> [   48.724000] [drm] Forcing AGP to PCI mode
>>          Starting File System Check on /d[   48.872000] [drm]
>> Generation 2 PCI interface, using max accessible memory
>> ev/...2-638b-4a0[   48.968000] radeon 0000:80:00.0: VRAM: 128M
>> 0xFFFFFFFFC0000000 - 0xFFFFFFFFC7FFFFFF (128M used)
>> c-be55-7444e126d[   49.088000] radeon 0000:80:00.0: GTT: 512M
>> 0xFFFFFFFFA0000000 - 0xFFFFFFFFBFFFFFFF
>> 283...
>> [   49.196000] [drm] Detected VRAM RAM=128M, BAR=128M
>> [   49.264000] [drm] RAM width 128bits DDR
>> [   49.328000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
>> [   49412000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
>> [   49.492000] [TTM] Initializing pool allocator
>> [   49.492000] [drm] radeon: 128M of VRAM memory ready
>> [   49.492000] [drm] radeon: 512M of GTT memory ready.
>> [   49.492000] [drm] GART: num cpu pages 131072, num gpu pages 131072
>> [   49.636000] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
>> [   49.636000] [drm] PCI GART of 512M enabled (table at 0x0000000043300000).
>> [   49.636000] radeon 0000:80:00.0: WB enabled
>> [   49.636000] radeon 0000:80:00.0: fence driver on ring 0 use gpu
>> addr 0xffffffffa0000000 and cpu addr 0x000000007d239000
>> [   49.636000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>> [   49.636000] [drm] Driver supports precise vblank timestamp query.
>> [   49.636000] [drm] radeon: irq initialized.
>> [   49.780000] [drm] radeon: ring at 0xFFFFFFFFA0001000
>> [   49.972000] [drm:r100_ring_test [radeon]] *ERROR* radeon: ring test
>> failed (scratch(0x15E4)=0xCAFEDEAD)
>> [   49.976000] [drm:r100_cp_init [radeon]] *ERROR* radeon: cp isn't
>> working (-22).
>> [   49.976000] radeon 0000:80:00.0: failed initializing CP (-22).
>> [   49.976000] radeon 0000:80:00.0: Disabling GPU acceleration
>> [   50.168000] [drm:r100_cp_fini [radeon]] *ERROR* Wait for CP idle
>> timeout, shutting down CP.
>> [   50.280000] [drm] radeon: cp finalized
>> [   50.592000] [drm] Radeon Display Connectors
>> [   50.592000] [drm] Connector 0:
>> [   50.592000] [drm]   VGA-1
>> [   50.592000] [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
>> [   50.592000] [drm]   Encoders:
>> [   50.592000] [drm]     CRT1: INTERNAL_DAC1
>> [   50.592000] [drm] Connector 1:
>> [   50.592000] [drm]   DVI-I-1
>> [   50.592000] [drm]   HPD1
>> [   50.592000] [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
>> [   50.592000] [drm]   Encoders:
>> [   50.592000] [drm]     CRT2: INTERNAL_DAC2
>> [   50.592000] [drm]     DFP1: INTERNAL_TMDS1
>> [   50.608000] radeon 0000:80:00.0: No connectors reported connected with modes
>> [   50.608000] [drm] Cannot find any crtc or sizes - going 1024x768
>> [   50.828000] [drm] fb mappable at 0xFFFFFFFFC0040000
>> [   50.828000] [drm] vram apper at 0xFFFFFFFFC0000000
>> [   50.828000] [drm] size 3145728
>> [   50.828000] [drm] fb depth is 24
>> [   50.828000] [drm]    pitch is 4096
>> [   51.848000] Console: switching to colour frame buffer device 128x48
>> [   52.080000] radeon 0000:80:00.0: fb0: radeondrmfb frame buffer device
>> [   52172000] [drm] Initialized radeon 2.43.0 20080528 for
>> 0000:80:00.0 on minor 0
>>
>> NVIDIA QUADRO MXR
>> [   51.880000] nouveau 0000:80:00.0: enabling SERR and PARITY (0007 -> 0147)
>> [   52.044000] nouveau 0000:80:00.0: NVIDIA NV11 (011300a1)
>> [   52.364000] nouveau 0000:80:00.0: bios: version 03.11.01.24.00
>> [   52.488000] nouveau 0000:80:00.0: putting AGP V2 device into 4x mode
>> [   52.592000] nouveau 0000:80:00.0: putting AGP V2 device into 4x mode
>> [   52.668000] nouveau 0000:80:00.0: tmr: unknown input clock freq
>> [   52.740000] nouveau 0000:80:00.0: fb: 32 MiB SDRAM
>> [   52.844000] [TTM] Zone  kernel: Available graphics memory: 3077188 kiB
>> [   52.920000] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
>> [   52.920000] [TTM] Initializing pool allocator
>> [   52.928000] nouveau 0000:80:00.0: DRM: VRAM: 31 MiB
>> [   52.928000] nouveau 0000:80:00.0: DRM: GART: 512 MiB
>> [   52.928000] nouveau 0000:80:00.0: DRM: BMP version 5.20
>> [   52.928000] nouveau 0000:80:00.0: DRM: No useful DCB data in VBIOS
>> [   52.928000] nouveau 0000:80:00.0: DRM: Adaptor not initialised,
>> running VBIOS init tables.
>> [   53.016000] nouveau 0000:80:00.0: DRM: Saving VGA fonts
>> [   53.336000] nouveau 0000:80:00.0: DRM: No useful DCB data in VBIOS
>> [   53.336000] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>> [   53.336000] [drm] Driver supports precise vblank timestamp query.
>> [   53.336000] nouveau 0000:80:00.0: DRM: 0xABA2: Parsing digital
>> output script table
>> [   53.920000] nouveau 0000:80:00.0: DRM: MM: using M2MF for buffer copies
>> [   54.144000] nouveau 0000:80:00.0: DRM: allocated 1920x1200 fb:
>> 0x8000, bo 000000007cee1000
>> [   54.276000] nouveau 0000:80:00.0: DRM: 0xABCE: Parsing digital
>> output script table
>> [   54.312000] Console: switching to colour frame buffer device 240x75
>> [   54.388000] nouveau 0000:80:00.0: DRM: GPU lockup - switching to
>> software fbcon
>> [   54.684000] nouveau 0000:80:00.0: fb0: nouveaufb frame buffer device
>> [   54.784000] [drm] Initialized nouveau 1.3.1 20120801 for
>> 0000:80:00.0 on minor 0
>> _______________________________________________
>> Nouveau mailing list
>> Nouveau@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/nouveau
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: PCI video card hangs during system boot
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On 2016-04-13 3:06 AM, Simone Mannori wrote:
>> Maybe pulling FireGL X1 will help:
>> https://lists.freedesktop.org/archives/dri-users/2015-February/000034.html
> Already done Dave: same error message during system boot. Just to be
> clear, the error message is also indipendent by the PCI slot position.
> Thanks for the hint, anyway.
Just one further thought regarding FireGL X1.  The OLS article by Grant 
referenced in the above
link indicated that a common problem in porting drivers to parisc was 
timing issues with I/O writes.
This was fixed in a couple of drivers by doing a read after doing a 
write.  Possibly, the radeon driver
could be hacked to always read after write as a test.

I also read somewhere ia64 linux using zx1 chipset did work at one 
time.  This link gives some history
on ia64 and might give some hints about other things to try:
http://comments.gmane.org/gmane.linux.debian.ports.ia64/3031

>
> My conclusion is that the "vanilla-PC" ATI RADEON 9200 128M PCI is not
> "BIOS compatible" with the c8000.
Agreed.  There's no way to change the c8000 BIOS.   I'd hoped that 
removing the X1 might free up
I/O space and allow 9200 to work.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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From - Thu Nov 08 21:38:42 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix ftrace function and function_graph tracers
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Fix the FTRACE function tracers for 32- and 64-bit kernel.
Reimplement some coding in assembly and utilize some optimizations, e.g.
put mcount() and ftrace_stub() into one L1 cacheline.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 14f655c..86167bf 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -4,8 +4,8 @@ config PARISC
 	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select HAVE_IDE
 	select HAVE_OPROFILE
-	select HAVE_FUNCTION_TRACER if 64BIT
-	select HAVE_FUNCTION_GRAPH_TRACER if 64BIT
+	select HAVE_FUNCTION_TRACER
+	select HAVE_FUNCTION_GRAPH_TRACER
 	select ARCH_WANT_FRAME_POINTERS
 	select RTC_CLASS
 	select RTC_DRV_GENERIC
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index bc989e5..68b7cbd 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -2,9 +2,13 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
+config TRACE_IRQFLAGS_SUPPORT
+	def_bool y
+
 config DEBUG_RODATA
        bool "Write protect kernel read-only data structures"
        depends on DEBUG_KERNEL
+       default y
        help
          Mark the kernel read-only data as write-protected in the pagetables,
          in order to catch accidental (and incorrect) writes to such const
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 965a099..75cb451 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -62,9 +62,7 @@ cflags-y	+= -mdisable-fpregs
 
 # Without this, "ld -r" results in .text sections that are too big
 # (> 0x40000) for branches to reach stubs.
-ifndef CONFIG_FUNCTION_TRACER
-  cflags-y	+= -ffunction-sections
-endif
+cflags-y	+= -ffunction-sections
 
 # Use long jumps instead of long branches (needed if your linker fails to
 # link a too big vmlinux executable). Not enabled for building modules.
diff --git a/arch/parisc/include/asm/ftrace.h b/arch/parisc/include/asm/ftrace.h
index 544ed8e..e635c83 100644
--- a/arch/parisc/include/asm/ftrace.h
+++ b/arch/parisc/include/asm/ftrace.h
@@ -5,16 +5,6 @@
 extern void mcount(void);
 
 /*
- * Stack of return addresses for functions of a thread.
- * Used in struct thread_info
- */
-struct ftrace_ret_stack {
-	unsigned long ret;
-	unsigned long func;
-	unsigned long long calltime;
-};
-
-/*
  * Primary handler of a function return.
  * It relays on ftrace_return_to_handler.
  * Defined in entry.S
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index ff87b46..69a1118 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -15,11 +15,7 @@ ifdef CONFIG_FUNCTION_TRACER
 # Do not profile debug and lowlevel utilities
 CFLAGS_REMOVE_ftrace.o = -pg
 CFLAGS_REMOVE_cache.o = -pg
-CFLAGS_REMOVE_irq.o = -pg
-CFLAGS_REMOVE_pacache.o = -pg
 CFLAGS_REMOVE_perf.o = -pg
-CFLAGS_REMOVE_traps.o = -pg
-CFLAGS_REMOVE_unaligned.o = -pg
 CFLAGS_REMOVE_unwind.o = -pg
 endif
 
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 623496c..39127d3 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1970,43 +1970,98 @@ pt_regs_ok:
 	b	intr_restore
 	copy	%r25,%r16
 
-	.import schedule,code
 syscall_do_resched:
-	BL	schedule,%r2
+	load32	syscall_check_resched,%r2 /* if resched, we start over again */
+	load32	schedule,%r19
+	bv	%r0(%r19)		/* jumps to schedule() */
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #else
 	nop
 #endif
-	b	syscall_check_resched	/* if resched, we start over again */
-	nop
 ENDPROC(syscall_exit)
 
 
 #ifdef CONFIG_FUNCTION_TRACER
+
 	.import ftrace_function_trampoline,code
-ENTRY(_mcount)
-	copy	%r3, %arg2
+	.align L1_CACHE_BYTES
+	.globl mcount
+	.type  mcount, @function
+ENTRY(mcount)
+_mcount:
+	.export _mcount,data
+	.proc
+	.callinfo caller,frame=0
+	.entry
+	/*
+	 * The 64bit mcount() function pointer needs 4 dwords, of which the
+	 * first two are free.  We optimize it here and put 2 instructions for
+	 * calling mcount(), and 2 instructions for ftrace_stub().  That way we
+	 * have all on one L1 cacheline.
+	 */
 	b	ftrace_function_trampoline
+	copy	%r3, %arg2	/* caller original %sp */
+ftrace_stub:
+	.globl ftrace_stub
+        .type  ftrace_stub, @function
+#ifdef CONFIG_64BIT
+	bve	(%rp)
+#else
+	bv	%r0(%rp)
+#endif
 	nop
-ENDPROC(_mcount)
+#ifdef CONFIG_64BIT
+	.dword mcount
+	.dword 0 /* code in head.S puts value of global gp here */
+#endif
+	.exit
+	.procend
+ENDPROC(mcount)
 
+	.align 8
+	.globl return_to_handler
+	.type  return_to_handler, @function
 ENTRY(return_to_handler)
-	load32	return_trampoline, %rp
-	copy	%ret0, %arg0
-	copy	%ret1, %arg1
-	b	ftrace_return_to_handler
-	nop
-return_trampoline:
-	copy	%ret0, %rp
-	copy	%r23, %ret0
-	copy	%r24, %ret1
+	.proc
+	.callinfo caller,frame=FRAME_SIZE
+	.entry
+	.export parisc_return_to_handler,data
+parisc_return_to_handler:
+	copy %r3,%r1
+	STREG %r0,-RP_OFFSET(%sp)	/* store 0 as %rp */
+	copy %sp,%r3
+	STREGM %r1,FRAME_SIZE(%sp)
+	STREG %ret0,8(%r3)
+	STREG %ret1,16(%r3)
 
-.globl ftrace_stub
-ftrace_stub:
+#ifdef CONFIG_64BIT
+	loadgp
+#endif
+
+	/* call ftrace_return_to_handler(0) */
+#ifdef CONFIG_64BIT
+	ldo -16(%sp),%ret1		/* Reference param save area */
+#endif
+	BL ftrace_return_to_handler,%r2
+	ldi 0,%r26
+	copy %ret0,%rp
+
+	/* restore original return values */
+	LDREG 8(%r3),%ret0
+	LDREG 16(%r3),%ret1
+
+	/* return from function */
+#ifdef CONFIG_64BIT
+	bve	(%rp)
+#else
 	bv	%r0(%rp)
-	nop
+#endif
+	LDREGM -FRAME_SIZE(%sp),%r3
+	.exit
+	.procend
 ENDPROC(return_to_handler)
+
 #endif	/* CONFIG_FUNCTION_TRACER */
 
 #ifdef CONFIG_IRQSTACKS
diff --git a/arch/parisc/kernel/ftrace.c b/arch/parisc/kernel/ftrace.c
index 559d400..b13f9ec 100644
--- a/arch/parisc/kernel/ftrace.c
+++ b/arch/parisc/kernel/ftrace.c
@@ -1,6 +1,6 @@
 /*
  * Code for tracing calls in Linux kernel.
- * Copyright (C) 2009 Helge Deller <deller@gmx.de>
+ * Copyright (C) 2009-2016 Helge Deller <deller@gmx.de>
  *
  * based on code for x86 which is:
  * Copyright (C) 2007-2008 Steven Rostedt <srostedt@redhat.com>
@@ -13,104 +13,21 @@
 #include <linux/init.h>
 #include <linux/ftrace.h>
 
+#include <asm/assembly.h>
 #include <asm/sections.h>
 #include <asm/ftrace.h>
 
 
-
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
-
-/* Add a function return address to the trace stack on thread info.*/
-static int push_return_trace(unsigned long ret, unsigned long long time,
-				unsigned long func, int *depth)
-{
-	int index;
-
-	if (!current->ret_stack)
-		return -EBUSY;
-
-	/* The return trace stack is full */
-	if (current->curr_ret_stack == FTRACE_RETFUNC_DEPTH - 1) {
-		atomic_inc(&current->trace_overrun);
-		return -EBUSY;
-	}
-
-	index = ++current->curr_ret_stack;
-	barrier();
-	current->ret_stack[index].ret = ret;
-	current->ret_stack[index].func = func;
-	current->ret_stack[index].calltime = time;
-	*depth = index;
-
-	return 0;
-}
-
-/* Retrieve a function return address to the trace stack on thread info.*/
-static void pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret)
-{
-	int index;
-
-	index = current->curr_ret_stack;
-
-	if (unlikely(index < 0)) {
-		ftrace_graph_stop();
-		WARN_ON(1);
-		/* Might as well panic, otherwise we have no where to go */
-		*ret = (unsigned long)
-			dereference_function_descriptor(&panic);
-		return;
-	}
-
-	*ret = current->ret_stack[index].ret;
-	trace->func = current->ret_stack[index].func;
-	trace->calltime = current->ret_stack[index].calltime;
-	trace->overrun = atomic_read(&current->trace_overrun);
-	trace->depth = index;
-	barrier();
-	current->curr_ret_stack--;
-
-}
-
-/*
- * Send the trace to the ring-buffer.
- * @return the original return address.
- */
-unsigned long ftrace_return_to_handler(unsigned long retval0,
-				       unsigned long retval1)
-{
-	struct ftrace_graph_ret trace;
-	unsigned long ret;
-
-	pop_return_trace(&trace, &ret);
-	trace.rettime = local_clock();
-	ftrace_graph_return(&trace);
-
-	if (unlikely(!ret)) {
-		ftrace_graph_stop();
-		WARN_ON(1);
-		/* Might as well panic. What else to do? */
-		ret = (unsigned long)
-			dereference_function_descriptor(&panic);
-	}
-
-	/* HACK: we hand over the old functions' return values
-	   in %r23 and %r24. Assembly in entry.S will take care
-	   and move those to their final registers %ret0 and %ret1 */
-	asm( "copy %0, %%r23 \n\t"
-	     "copy %1, %%r24 \n" : : "r" (retval0), "r" (retval1) );
-
-	return ret;
-}
-
 /*
  * Hook the return address and push it in the stack of return addrs
  * in current thread info.
  */
-void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
+static void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
 {
 	unsigned long old;
-	unsigned long long calltime;
 	struct ftrace_graph_ent trace;
+	extern int parisc_return_to_handler;
 
 	if (unlikely(ftrace_graph_is_dead()))
 		return;
@@ -119,64 +36,47 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
 		return;
 
 	old = *parent;
-	*parent = (unsigned long)
-		  dereference_function_descriptor(&return_to_handler);
 
-	if (unlikely(!__kernel_text_address(old))) {
-		ftrace_graph_stop();
-		*parent = old;
-		WARN_ON(1);
-		return;
-	}
-
-	calltime = local_clock();
+	trace.func = self_addr;
+	trace.depth = current->curr_ret_stack + 1;
 
-	if (push_return_trace(old, calltime,
-				self_addr, &trace.depth) == -EBUSY) {
-		*parent = old;
+	/* Only trace if the calling function expects to */
+	if (!ftrace_graph_entry(&trace))
 		return;
-	}
 
-	trace.func = self_addr;
+        if (ftrace_push_return_trace(old, self_addr, &trace.depth,
+			0 ) == -EBUSY)
+                return;
 
-	/* Only trace if the calling function expects to */
-	if (!ftrace_graph_entry(&trace)) {
-		current->curr_ret_stack--;
-		*parent = old;
-	}
+	/* activate parisc_return_to_handler() as return point */
+	*parent = (unsigned long) &parisc_return_to_handler;
 }
-
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
 
-
-void ftrace_function_trampoline(unsigned long parent,
+void notrace ftrace_function_trampoline(unsigned long parent,
 				unsigned long self_addr,
 				unsigned long org_sp_gr3)
 {
-	extern ftrace_func_t ftrace_trace_function;
+	extern ftrace_func_t ftrace_trace_function;  /* depends on CONFIG_DYNAMIC_FTRACE */
+	extern int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace);
 
 	if (ftrace_trace_function != ftrace_stub) {
-		ftrace_trace_function(parent, self_addr);
+		/* struct ftrace_ops *op, struct pt_regs *regs); */
+		ftrace_trace_function(parent, self_addr, NULL, NULL);
 		return;
 	}
+
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
-	if (ftrace_graph_entry && ftrace_graph_return) {
-		unsigned long sp;
+	if (ftrace_graph_return != (trace_func_graph_ret_t) ftrace_stub ||
+		ftrace_graph_entry != ftrace_graph_entry_stub) {
 		unsigned long *parent_rp;
 
-                asm volatile ("copy %%r30, %0" : "=r"(sp));
-		/* sanity check: is stack pointer which we got from
-		   assembler function in entry.S in a reasonable
-		   range compared to current stack pointer? */
-		if ((sp - org_sp_gr3) > 0x400)
-			return;
-
 		/* calculate pointer to %rp in stack */
-		parent_rp = (unsigned long *) org_sp_gr3 - 0x10;
+		parent_rp = (unsigned long *) (org_sp_gr3 - RP_OFFSET);
 		/* sanity check: parent_rp should hold parent */
 		if (*parent_rp != parent)
 			return;
-		
+
 		prepare_ftrace_return(parent_rp, self_addr);
 		return;
 	}
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index 75aa0db..bbbe360 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -129,6 +129,15 @@ $pgt_fill_loop:
 	/* And the stack pointer too */
 	ldo             THREAD_SZ_ALGN(%r6),%sp
 
+#if defined(CONFIG_64BIT) && defined(CONFIG_FUNCTION_TRACER)
+	.import _mcount,data
+	/* initialize mcount FPTR */
+	/* Get the global data pointer */
+	loadgp
+	load32		PA(_mcount), %r10
+	std		%dp,0x18(%r10)
+#endif
+
 #ifdef CONFIG_SMP
 	/* Set the smp rendezvous address into page zero.
 	** It would be safer to do this in init_smp_config() but
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On 14 April 2016 at 00:32, John David Anglin <dave.anglin@bell.net> wrote:
> On 2016-04-13 3:06 AM, Simone Mannori wrote:
>>>
>>> Maybe pulling FireGL X1 will help:
>>>
>>> https://lists.freedesktop.org/archives/dri-users/2015-February/000034.html
>>
>> Already done Dave: same error message during system boot. Just to be
>> clear, the error message is also indipendent by the PCI slot position.
>> Thanks for the hint, anyway.
>
> Just one further thought regarding FireGL X1.  The OLS article by Grant
> referenced in the above
> link indicated that a common problem in porting drivers to parisc was timing
> issues with I/O writes.
> This was fixed in a couple of drivers by doing a read after doing a write.
> Possibly, the radeon driver
> could be hacked to always read after write as a test.

I've tried this. It doesn't change the failure mode.
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Subject: Re: PCI video card hangs during system boot
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On 2016-04-13, at 8:18 PM, Graham Gower wrote:

> On 14 April 2016 at 00:32, John David Anglin <dave.anglin@bell.net> wrote:
>> On 2016-04-13 3:06 AM, Simone Mannori wrote:
>>>> 
>>>> Maybe pulling FireGL X1 will help:
>>>> 
>>>> https://lists.freedesktop.org/archives/dri-users/2015-February/000034.html
>>> 
>>> Already done Dave: same error message during system boot. Just to be
>>> clear, the error message is also indipendent by the PCI slot position.
>>> Thanks for the hint, anyway.
>> 
>> Just one further thought regarding FireGL X1.  The OLS article by Grant
>> referenced in the above
>> link indicated that a common problem in porting drivers to parisc was timing
>> issues with I/O writes.
>> This was fixed in a couple of drivers by doing a read after doing a write.
>> Possibly, the radeon driver
>> could be hacked to always read after write as a test.
> 
> I've tried this. It doesn't change the failure mode.

Do you know if c8000 can setup any non HP card (e.g., ATI Rage XL)?  It was reported that
some old cards would work with PDC firmware in unaccelerated fb mode, but c8000 has
x86 emulator so it might be able to enable accelerated 2d/3d.

Dave
--
John David Anglin	dave.anglin@bell.net



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On 14 April 2016 at 09:59, John David Anglin <dave.anglin@bell.net> wrote:
> On 2016-04-13, at 8:18 PM, Graham Gower wrote:
>
>> On 14 April 2016 at 00:32, John David Anglin <dave.anglin@bell.net> wrote:
>>> On 2016-04-13 3:06 AM, Simone Mannori wrote:
>>>>>
>>>>> Maybe pulling FireGL X1 will help:
>>>>>
>>>>> https://lists.freedesktop.org/archives/dri-users/2015-February/000034.html
>>>>
>>>> Already done Dave: same error message during system boot. Just to be
>>>> clear, the error message is also indipendent by the PCI slot position.
>>>> Thanks for the hint, anyway.
>>>
>>> Just one further thought regarding FireGL X1.  The OLS article by Grant
>>> referenced in the above
>>> link indicated that a common problem in porting drivers to parisc was timing
>>> issues with I/O writes.
>>> This was fixed in a couple of drivers by doing a read after doing a write.
>>> Possibly, the radeon driver
>>> could be hacked to always read after write as a test.
>>
>> I've tried this. It doesn't change the failure mode.
>
> Do you know if c8000 can setup any non HP card (e.g., ATI Rage XL)?  It was reported that
> some old cards would work with PDC firmware in unaccelerated fb mode, but c8000 has
> x86 emulator so it might be able to enable accelerated 2d/3d.
>


I have not tested this. I vaguely recall getting the same "bridge
aperture too big" message once with a 128Mb radeon, but never obtained
older cards which might be compatible.
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Subject: [PATCH V3 00/29] bitops: add parity functions
Date: Thu, 14 Apr 2016 10:36:41 +0800
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Cc: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>,
        adi-buildroot-devel@lists.sourceforge.net,
        Andrew Morton <akpm@linux-foundation.org>,
        Anton Blanchard <anton@samba.org>,
        Arnd Bergmann <arnd@arndb.de>,
        Benjamin Tissoires <benjamin.tissoires@redhat.com>,
        Borislav Petkov <bp@suse.de>,
        Bruce Allan <bruce.w.allan@intel.com>,
        Christophe Leroy <christophe.leroy@c-s.fr>,
        David Herrmann <dh.herrmann@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        Denys Vlasenko <dvlasenk@redhat.com>,
        Dmitry Torokhov <dmitry.torokhov@gmail.com>,
        Duson Lin <dusonlin@emc.com.tw>,
        Guenter Roeck <linux@roeck-us.net>,
        Hans de Goede <hdegoede@redhat.com>,
        Hans Verkuil <hans.verkuil@cisco.com>,
        Hartmut Knaack <knaack.h@gmx.de>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        H
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/54138>

From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>

When I do "grep parity -r linux", I found many parity calculations
distributed in many drivers.

This patch series does:
  1. provide generic and architecture-specific parity calculations
  2. remove drivers' local parity calculations, use bitops' parity
     functions instead
  3. replace "hweightN(x) & 1" with "parityN(x)" to improve readability,
     and improve performance on some CPUs that without popcount support

I did not use GCC's __builtin_parity* functions, based on the following reasons:
  1. I don't know where to identify which version of GCC from the beginning
     supported __builtin_parity for the architecture.
  2. For the architecture that doesn't has popcount instruction, GCC instead use
     "call __paritysi2" (__paritydi2 for 64-bits). So if use __builtin_parity, we must
     provide __paritysi2 and __paritydi2 functions for these architectures.
     Additionally, parity4,8,16 might be "__builtin_parity(x & mask)", but the "& mask"
     operation is totally unnecessary.
  3. For the architecture that has popcount instruction, we do the same things.
  4. For powerpc, sparc, and x86, we do runtime patching to use popcount instruction
     if the CPU support.

I have compiled successfully with x86_64_defconfig, i386_defconfig, pseries_defconfig
and sparc64_defconfig.

Changes to v2:
- Add constant PARITY_MAGIC (proposals by Sam Ravnborg)
- Add include/asm-generic/bitops/popc-parity.h (proposals by Chris Metcalf)
- Tile uses popc-parity.h directly
- Mips uses popc-parity.h if has usable __builtin_popcount
- Add few comments in powerpc's and sparc's parity.S
- X86, remove custom calling convention

Changes to v1:
- Add runtime patching for powerpc, sparc, and x86
- Avr32 use grenric parity too
- Fix error in ssfdc's patch, and add commit message
- Don't change the original code composition of drivers/iio/gyro/adxrs450.c
- Directly assignement to phy_cap.parity in drivers/scsi/isci/phy.c

Regards,

=== diffstat ===

Zhaoxiu Zeng (29):
  bitops: add parity functions
  Include generic parity.h in some architectures' bitops.h
  Add alpha-specific parity functions
  Add blackfin-specific parity functions
  Add ia64-specific parity functions
  Tile and MIPS (if has usable __builtin_popcount) use popcount parity
    functions
  Add powerpc-specific parity functions
  Add sparc-specific parity functions
  Add x86-specific parity functions
  sunrpc: use parity8
  mips: use parity functions in cerr-sb1.c
  bch: use parity32
  media: use parity8 in vivid-vbi-gen.c
  media: use parity functions in saa7115
  input: use parity32 in grip_mp
  input: use parity64 in sidewinder
  input: use parity16 in ams_delta_serio
  scsi: use parity32 in isci's phy
  mtd: use parity16 in ssfdc
  mtd: use parity functions in inftlcore
  crypto: use parity functions in qat_hal
  mtd: use parity16 in sm_ftl
  ethernet: use parity8 in sun/niu.c
  input: use parity8 in pcips2
  input: use parity8 in sa1111ps2
  iio: use parity32 in adxrs450
  serial: use parity32 in max3100
  input: use parity8 in elantech
  ethernet: use parity8 in broadcom/tg3.c

 arch/alpha/include/asm/bitops.h              |  27 +++++
 arch/arc/include/asm/bitops.h                |   1 +
 arch/arm/include/asm/bitops.h                |   1 +
 arch/arm64/include/asm/bitops.h              |   1 +
 arch/avr32/include/asm/bitops.h              |   1 +
 arch/blackfin/include/asm/bitops.h           |  31 ++++++
 arch/c6x/include/asm/bitops.h                |   1 +
 arch/cris/include/asm/bitops.h               |   1 +
 arch/frv/include/asm/bitops.h                |   1 +
 arch/h8300/include/asm/bitops.h              |   1 +
 arch/hexagon/include/asm/bitops.h            |   1 +
 arch/ia64/include/asm/bitops.h               |  31 ++++++
 arch/m32r/include/asm/bitops.h               |   1 +
 arch/m68k/include/asm/bitops.h               |   1 +
 arch/metag/include/asm/bitops.h              |   1 +
 arch/mips/include/asm/bitops.h               |   7 ++
 arch/mips/mm/cerr-sb1.c                      |  67 ++++---------
 arch/mn10300/include/asm/bitops.h            |   1 +
 arch/openrisc/include/asm/bitops.h           |   1 +
 arch/parisc/include/asm/bitops.h             |   1 +
 arch/powerpc/include/asm/bitops.h            |  11 +++
 arch/powerpc/lib/Makefile                    |   2 +-
 arch/powerpc/lib/parity_64.S                 | 142 +++++++++++++++++++++++++++
 arch/powerpc/lib/ppc_ksyms.c                 |   5 +
 arch/s390/include/asm/bitops.h               |   1 +
 arch/sh/include/asm/bitops.h                 |   1 +
 arch/sparc/include/asm/bitops_32.h           |   1 +
 arch/sparc/include/asm/bitops_64.h           |  18 ++++
 arch/sparc/kernel/sparc_ksyms_64.c           |   6 ++
 arch/sparc/lib/Makefile                      |   2 +-
 arch/sparc/lib/parity.S                      | 128 ++++++++++++++++++++++++
 arch/tile/include/asm/bitops.h               |   2 +
 arch/x86/include/asm/arch_hweight.h          |   5 +
 arch/x86/include/asm/arch_parity.h           | 117 ++++++++++++++++++++++
 arch/x86/include/asm/bitops.h                |   4 +-
 arch/xtensa/include/asm/bitops.h             |   1 +
 drivers/crypto/qat/qat_common/qat_hal.c      |  32 ++----
 drivers/iio/gyro/adxrs450.c                  |   4 +-
 drivers/input/joystick/grip_mp.c             |  16 +--
 drivers/input/joystick/sidewinder.c          |  24 +----
 drivers/input/mouse/elantech.c               |  10 +-
 drivers/input/mouse/elantech.h               |   1 -
 drivers/input/serio/ams_delta_serio.c        |   8 +-
 drivers/input/serio/pcips2.c                 |   2 +-
 drivers/input/serio/sa1111ps2.c              |   2 +-
 drivers/media/i2c/saa7115.c                  |  17 +---
 drivers/media/platform/vivid/vivid-vbi-gen.c |   9 +-
 drivers/mtd/inftlcore.c                      |  17 +---
 drivers/mtd/sm_ftl.c                         |   5 +-
 drivers/mtd/ssfdc.c                          |  31 ++----
 drivers/net/ethernet/broadcom/tg3.c          |   6 +-
 drivers/net/ethernet/sun/niu.c               |  10 +-
 drivers/scsi/isci/phy.c                      |  15 +--
 drivers/tty/serial/max3100.c                 |   2 +-
 include/asm-generic/bitops.h                 |   1 +
 include/asm-generic/bitops/arch_parity.h     |  39 ++++++++
 include/asm-generic/bitops/const_parity.h    |  36 +++++++
 include/asm-generic/bitops/parity.h          |   7 ++
 include/asm-generic/bitops/popc-parity.h     |  32 ++++++
 include/linux/bitops.h                       |  10 ++
 lib/bch.c                                    |  14 +--
 net/sunrpc/auth_gss/gss_krb5_keys.c          |   6 +-
 62 files changed, 745 insertions(+), 235 deletions(-)
 create mode 100644 arch/powerpc/lib/parity_64.S
 create mode 100644 arch/sparc/lib/parity.S
 create mode 100644 arch/x86/include/asm/arch_parity.h
 create mode 100644 include/asm-generic/bitops/arch_parity.h
 create mode 100644 include/asm-generic/bitops/const_parity.h
 create mode 100644 include/asm-generic/bitops/parity.h
 create mode 100644 include/asm-generic/bitops/popc-parity.h

-- 
2.5.0





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Subject: [PATCH V3 02/29] Include generic parity.h in some architectures'
 bitops.h
Date: Thu, 14 Apr 2016 11:04:31 +0800
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Cc: Rich Felker <dalias@libc.org>, Aurelien Jacquiot <a-jacquiot@ti.com>,
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From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>

Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
---
 arch/arc/include/asm/bitops.h      | 1 +
 arch/arm/include/asm/bitops.h      | 1 +
 arch/arm64/include/asm/bitops.h    | 1 +
 arch/avr32/include/asm/bitops.h    | 1 +
 arch/c6x/include/asm/bitops.h      | 1 +
 arch/cris/include/asm/bitops.h     | 1 +
 arch/frv/include/asm/bitops.h      | 1 +
 arch/h8300/include/asm/bitops.h    | 1 +
 arch/hexagon/include/asm/bitops.h  | 1 +
 arch/m32r/include/asm/bitops.h     | 1 +
 arch/m68k/include/asm/bitops.h     | 1 +
 arch/metag/include/asm/bitops.h    | 1 +
 arch/mn10300/include/asm/bitops.h  | 1 +
 arch/openrisc/include/asm/bitops.h | 1 +
 arch/parisc/include/asm/bitops.h   | 1 +
 arch/s390/include/asm/bitops.h     | 1 +
 arch/sh/include/asm/bitops.h       | 1 +
 arch/xtensa/include/asm/bitops.h   | 1 +
 18 files changed, 18 insertions(+)

diff --git a/arch/arc/include/asm/bitops.h b/arch/arc/include/asm/bitops.h
index 0352fb8..7967e47 100644
--- a/arch/arc/include/asm/bitops.h
+++ b/arch/arc/include/asm/bitops.h
@@ -370,6 +370,7 @@ static inline __attribute__ ((const)) int __ffs(unsigned long x)
 #define ffz(x)	__ffs(~(x))
 
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/lock.h>
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h
index e943e6c..99f28a6 100644
--- a/arch/arm/include/asm/bitops.h
+++ b/arch/arm/include/asm/bitops.h
@@ -313,6 +313,7 @@ static inline unsigned long __ffs(unsigned long x)
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #ifdef __ARMEB__
diff --git a/arch/arm64/include/asm/bitops.h b/arch/arm64/include/asm/bitops.h
index 9c19594..eac4965 100644
--- a/arch/arm64/include/asm/bitops.h
+++ b/arch/arm64/include/asm/bitops.h
@@ -44,6 +44,7 @@ extern int test_and_change_bit(int nr, volatile unsigned long *p);
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/non-atomic.h>
diff --git a/arch/avr32/include/asm/bitops.h b/arch/avr32/include/asm/bitops.h
index 910d537..9f4a2ce 100644
--- a/arch/avr32/include/asm/bitops.h
+++ b/arch/avr32/include/asm/bitops.h
@@ -298,6 +298,7 @@ static inline int ffs(unsigned long word)
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 extern unsigned long find_next_zero_bit_le(const void *addr,
diff --git a/arch/c6x/include/asm/bitops.h b/arch/c6x/include/asm/bitops.h
index f0ab012..94eb0d1 100644
--- a/arch/c6x/include/asm/bitops.h
+++ b/arch/c6x/include/asm/bitops.h
@@ -87,6 +87,7 @@ static inline int ffs(int x)
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/atomic.h>
diff --git a/arch/cris/include/asm/bitops.h b/arch/cris/include/asm/bitops.h
index 8062cb5..06bc246 100644
--- a/arch/cris/include/asm/bitops.h
+++ b/arch/cris/include/asm/bitops.h
@@ -36,6 +36,7 @@
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/lock.h>
 
diff --git a/arch/frv/include/asm/bitops.h b/arch/frv/include/asm/bitops.h
index 0df8e95..f2a7ee8 100644
--- a/arch/frv/include/asm/bitops.h
+++ b/arch/frv/include/asm/bitops.h
@@ -314,6 +314,7 @@ int __ilog2_u64(u64 n)
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/le.h>
diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h
index 05999ab..e392db2 100644
--- a/arch/h8300/include/asm/bitops.h
+++ b/arch/h8300/include/asm/bitops.h
@@ -172,6 +172,7 @@ static inline unsigned long __ffs(unsigned long word)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic.h>
diff --git a/arch/hexagon/include/asm/bitops.h b/arch/hexagon/include/asm/bitops.h
index 5e4a59b..2df614e 100644
--- a/arch/hexagon/include/asm/bitops.h
+++ b/arch/hexagon/include/asm/bitops.h
@@ -290,6 +290,7 @@ static inline unsigned long __fls(unsigned long word)
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic.h>
diff --git a/arch/m32r/include/asm/bitops.h b/arch/m32r/include/asm/bitops.h
index 86ba2b4..e3cf46b 100644
--- a/arch/m32r/include/asm/bitops.h
+++ b/arch/m32r/include/asm/bitops.h
@@ -259,6 +259,7 @@ static __inline__ int test_and_change_bit(int nr, volatile void * addr)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #endif /* __KERNEL__ */
diff --git a/arch/m68k/include/asm/bitops.h b/arch/m68k/include/asm/bitops.h
index b4a9b0d..fd673ea 100644
--- a/arch/m68k/include/asm/bitops.h
+++ b/arch/m68k/include/asm/bitops.h
@@ -519,6 +519,7 @@ static inline int __fls(int x)
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #endif /* __KERNEL__ */
 
diff --git a/arch/metag/include/asm/bitops.h b/arch/metag/include/asm/bitops.h
index 2671134..ad13087 100644
--- a/arch/metag/include/asm/bitops.h
+++ b/arch/metag/include/asm/bitops.h
@@ -118,6 +118,7 @@ static inline int test_and_change_bit(unsigned int bit,
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
diff --git a/arch/mn10300/include/asm/bitops.h b/arch/mn10300/include/asm/bitops.h
index fe6f8e2..60761b7 100644
--- a/arch/mn10300/include/asm/bitops.h
+++ b/arch/mn10300/include/asm/bitops.h
@@ -225,6 +225,7 @@ int ffs(int x)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
 #include <asm-generic/bitops/le.h>
 
diff --git a/arch/openrisc/include/asm/bitops.h b/arch/openrisc/include/asm/bitops.h
index 3003cda..8c97642 100644
--- a/arch/openrisc/include/asm/bitops.h
+++ b/arch/openrisc/include/asm/bitops.h
@@ -43,6 +43,7 @@
 #include <asm-generic/bitops/sched.h>
 #include <asm/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/atomic.h>
diff --git a/arch/parisc/include/asm/bitops.h b/arch/parisc/include/asm/bitops.h
index 3f9406d..867ba10 100644
--- a/arch/parisc/include/asm/bitops.h
+++ b/arch/parisc/include/asm/bitops.h
@@ -211,6 +211,7 @@ static __inline__ int fls(int x)
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 8043f10..198eead 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -460,6 +460,7 @@ static inline int fls(int word)
 #include <asm-generic/bitops/ffz.h>
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h
index fc8e652..4bf0c35 100644
--- a/arch/sh/include/asm/bitops.h
+++ b/arch/sh/include/asm/bitops.h
@@ -86,6 +86,7 @@ static inline unsigned long ffz(unsigned long word)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
diff --git a/arch/xtensa/include/asm/bitops.h b/arch/xtensa/include/asm/bitops.h
index 3f44fa2..981fa83 100644
--- a/arch/xtensa/include/asm/bitops.h
+++ b/arch/xtensa/include/asm/bitops.h
@@ -229,6 +229,7 @@ test_and_change_bit(unsigned int bit, volatile unsigned long *p)
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
 
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 
-- 
2.5.0

From - Thu Nov 08 21:38:43 2018
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Subject: [PATCH V3 00/29] bitops: add parity functions
Date: Thu, 14 Apr 2016 12:18:40 +0800
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From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>

When I do "grep parity -r linux", I found many parity calculations
distributed in many drivers.

This patch series does:
  1. provide generic and architecture-specific parity calculations
  2. remove drivers' local parity calculations, use bitops' parity
     functions instead
  3. replace "hweightN(x) & 1" with "parityN(x)" to improve readability,
     and improve performance on some CPUs that without popcount support

I did not use GCC's __builtin_parity* functions, based on the following reasons:
  1. I don't know where to identify which version of GCC from the beginning
     supported __builtin_parity for the architecture.
  2. For the architecture that doesn't has popcount instruction, GCC instead use
     "call __paritysi2" (__paritydi2 for 64-bits). So if use __builtin_parity, we must
     provide __paritysi2 and __paritydi2 functions for these architectures.
     Additionally, parity4,8,16 might be "__builtin_parity(x & mask)", but the "& mask"
     operation is totally unnecessary.
  3. For the architecture that has popcount instruction, we do the same things.
  4. For powerpc, sparc, and x86, we do runtime patching to use popcount instruction
     if the CPU support.

I have compiled successfully with x86_64_defconfig, i386_defconfig, pseries_defconfig
and sparc64_defconfig.

Changes to v2:
- Add constant PARITY_MAGIC (proposals by Sam Ravnborg)
- Add include/asm-generic/bitops/popc-parity.h (proposals by Chris Metcalf)
- Tile uses popc-parity.h directly
- Mips uses popc-parity.h if has usable __builtin_popcount
- Add few comments in powerpc's and sparc's parity.S
- X86, remove custom calling convention

Changes to v1:
- Add runtime patching for powerpc, sparc, and x86
- Avr32 use grenric parity too
- Fix error in ssfdc's patch, and add commit message
- Don't change the original code composition of drivers/iio/gyro/adxrs450.c
- Directly assignement to phy_cap.parity in drivers/scsi/isci/phy.c

Regards,

=== diffstat ===

Zhaoxiu Zeng (29):
  bitops: add parity functions
  Include generic parity.h in some architectures' bitops.h
  Add alpha-specific parity functions
  Add blackfin-specific parity functions
  Add ia64-specific parity functions
  Tile and MIPS (if has usable __builtin_popcount) use popcount parity
    functions
  Add powerpc-specific parity functions
  Add sparc-specific parity functions
  Add x86-specific parity functions
  sunrpc: use parity8
  mips: use parity functions in cerr-sb1.c
  bch: use parity32
  media: use parity8 in vivid-vbi-gen.c
  media: use parity functions in saa7115
  input: use parity32 in grip_mp
  input: use parity64 in sidewinder
  input: use parity16 in ams_delta_serio
  scsi: use parity32 in isci's phy
  mtd: use parity16 in ssfdc
  mtd: use parity functions in inftlcore
  crypto: use parity functions in qat_hal
  mtd: use parity16 in sm_ftl
  ethernet: use parity8 in sun/niu.c
  input: use parity8 in pcips2
  input: use parity8 in sa1111ps2
  iio: use parity32 in adxrs450
  serial: use parity32 in max3100
  input: use parity8 in elantech
  ethernet: use parity8 in broadcom/tg3.c

 arch/alpha/include/asm/bitops.h              |  27 +++++
 arch/arc/include/asm/bitops.h                |   1 +
 arch/arm/include/asm/bitops.h                |   1 +
 arch/arm64/include/asm/bitops.h              |   1 +
 arch/avr32/include/asm/bitops.h              |   1 +
 arch/blackfin/include/asm/bitops.h           |  31 ++++++
 arch/c6x/include/asm/bitops.h                |   1 +
 arch/cris/include/asm/bitops.h               |   1 +
 arch/frv/include/asm/bitops.h                |   1 +
 arch/h8300/include/asm/bitops.h              |   1 +
 arch/hexagon/include/asm/bitops.h            |   1 +
 arch/ia64/include/asm/bitops.h               |  31 ++++++
 arch/m32r/include/asm/bitops.h               |   1 +
 arch/m68k/include/asm/bitops.h               |   1 +
 arch/metag/include/asm/bitops.h              |   1 +
 arch/mips/include/asm/bitops.h               |   7 ++
 arch/mips/mm/cerr-sb1.c                      |  67 ++++---------
 arch/mn10300/include/asm/bitops.h            |   1 +
 arch/openrisc/include/asm/bitops.h           |   1 +
 arch/parisc/include/asm/bitops.h             |   1 +
 arch/powerpc/include/asm/bitops.h            |  11 +++
 arch/powerpc/lib/Makefile                    |   2 +-
 arch/powerpc/lib/parity_64.S                 | 142 +++++++++++++++++++++++++++
 arch/powerpc/lib/ppc_ksyms.c                 |   5 +
 arch/s390/include/asm/bitops.h               |   1 +
 arch/sh/include/asm/bitops.h                 |   1 +
 arch/sparc/include/asm/bitops_32.h           |   1 +
 arch/sparc/include/asm/bitops_64.h           |  18 ++++
 arch/sparc/kernel/sparc_ksyms_64.c           |   6 ++
 arch/sparc/lib/Makefile                      |   2 +-
 arch/sparc/lib/parity.S                      | 128 ++++++++++++++++++++++++
 arch/tile/include/asm/bitops.h               |   2 +
 arch/x86/include/asm/arch_hweight.h          |   5 +
 arch/x86/include/asm/arch_parity.h           | 117 ++++++++++++++++++++++
 arch/x86/include/asm/bitops.h                |   4 +-
 arch/xtensa/include/asm/bitops.h             |   1 +
 drivers/crypto/qat/qat_common/qat_hal.c      |  32 ++----
 drivers/iio/gyro/adxrs450.c                  |   4 +-
 drivers/input/joystick/grip_mp.c             |  16 +--
 drivers/input/joystick/sidewinder.c          |  24 +----
 drivers/input/mouse/elantech.c               |  10 +-
 drivers/input/mouse/elantech.h               |   1 -
 drivers/input/serio/ams_delta_serio.c        |   8 +-
 drivers/input/serio/pcips2.c                 |   2 +-
 drivers/input/serio/sa1111ps2.c              |   2 +-
 drivers/media/i2c/saa7115.c                  |  17 +---
 drivers/media/platform/vivid/vivid-vbi-gen.c |   9 +-
 drivers/mtd/inftlcore.c                      |  17 +---
 drivers/mtd/sm_ftl.c                         |   5 +-
 drivers/mtd/ssfdc.c                          |  31 ++----
 drivers/net/ethernet/broadcom/tg3.c          |   6 +-
 drivers/net/ethernet/sun/niu.c               |  10 +-
 drivers/scsi/isci/phy.c                      |  15 +--
 drivers/tty/serial/max3100.c                 |   2 +-
 include/asm-generic/bitops.h                 |   1 +
 include/asm-generic/bitops/arch_parity.h     |  39 ++++++++
 include/asm-generic/bitops/const_parity.h    |  36 +++++++
 include/asm-generic/bitops/parity.h          |   7 ++
 include/asm-generic/bitops/popc-parity.h     |  32 ++++++
 include/linux/bitops.h                       |  10 ++
 lib/bch.c                                    |  14 +--
 net/sunrpc/auth_gss/gss_krb5_keys.c          |   6 +-
 62 files changed, 745 insertions(+), 235 deletions(-)
 create mode 100644 arch/powerpc/lib/parity_64.S
 create mode 100644 arch/sparc/lib/parity.S
 create mode 100644 arch/x86/include/asm/arch_parity.h
 create mode 100644 include/asm-generic/bitops/arch_parity.h
 create mode 100644 include/asm-generic/bitops/const_parity.h
 create mode 100644 include/asm-generic/bitops/parity.h
 create mode 100644 include/asm-generic/bitops/popc-parity.h

-- 
2.5.0





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Cc: Graham Gower <graham.gower@gmail.com>,
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> Do you know if c8000 can setup any non HP card (e.g., ATI Rage XL)?  It was reported that
> some old cards would work with PDC firmware in unaccelerated fb mode, but c8000 has
> x86 emulator so it might be able to enable accelerated 2d/3d.

Good hint. I have several "vintage" PCI video cards to try (including
ATI RAGE, Vodoo, etc.) but I can't because the have 5V PCI interface.
HP c8000 have several PCI slots BUT PCI 3.3 volt ONLY. Find
"universal" 5V/3V PCI card is possible but the only cards that I have
find (the ATI 9200 128Mega) fails at "BIOS" time (see the first
message of this thread).

I'm accumulating several indirect evidences that the primary source of
the problem is not the video driver (both "radeon" and "nouveau" fail)
or the bus interface (degrading APG to PCI using video driver options
at Linux kernel boot time does not change the final results; the only
PCI video card that I was able to find, if fails at BIOS time).

Indirect evidences point the ZX1 chipset. For instance, on my c8000
with FireGL X1, if I add more than 8G DRAM, Linux boot fails (kernel
panic) during "radeon" loading. If I remove the video card and I use
the workstation as "server" via serial port or Ethernet, I can upgrade
to 16 Giga DRAM (8 x 2GB modules) with zero issue. I will open another
specific thread with the details soon.

Few days ago, I have mismatched the memory modules; the c8000 was able
to start Linux boot but I had a kernel panic during "radeon" loading.

As Helge has already point out, the only debug option is to recompile
the kernel with some "printk" in stategic point, hoping to be able to
find the primary source of this _very_nasty_ issue.

  Simone Mannori - ITALY
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Dear All,

after upgrading the RAM to 16GB (8 x 2GB modules), the kernel hangs
just after the "nouveau" module loading.
With X1 ATI video card, the "radeon" driver has the very same behaviour.
Booting without ANY video card is OK and the c8000 works perfectly
(this exlude any memory realted issues like memory
errors/defective/unmatched DIMM)

With "nouveau" the serial console dump is:

[  OK  ] Reached target Graphical Interface.
[   73.932000] nuveau 0000:80:00.0: DRM: 0xABCE: Parsing digital
output script table
         Starting Update UTMP about Syste[   74.104000] nouveau
0000:80:00.0: DRM: 0xABCE: Parsing digital output script table
m Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.
[   95.616000] INFO: rcu_sched detected stalls on CPUs/tasks:
[   95.680000]  (detected by 1, t=5272 jiffies, g=2108, c=2107, q=121)
[   95.756000] All QSes seen, last rcu_sched kthread activity 5284
(4294916235-4294910951), jiffies_till_next_fqs=1, root ->qsmask 0x0
[   95.896000] dpkg            R  running task        0   941    938 0x00000014
[   95.984000] Backtrace:
[   96.012000]  [<0000000040215bc0>] show_stack+0x20/0x38
[   96.072000]  [<00000000402756e4>] sched_show_task+0x134/0x1d0
[   96.140000]  [<00000000402adc04>] rcu_check_callbacks+0x9bc/0x9c8
[   96.216000]  [<00000000402b2494>] update_process_times+0x74/0xd8
[   96.288000]  [<0000000040216edc>] timer_interrupt+0x1bc/0x220
[   96.356000]  [<000000004029d714>] handle_irq_event_percpu+0xb4/0x250
[   96.432000]  [<00000000402a3028>] handle_percpu_irq+0xa8/0xe8
[   96.500000]  [<000000004029c99c>] generic_handle_irq+0x4c/0x68
[   96.568000]  [<0000000040205308>] call_on_stack+0x18/0x24
[   96.636000]
[   96.652000] rcu_sched kthread starved for 5508 jiffies! g2108 c2107
f0x2 s3 ->state=0x100
[   96.752000] timer_interrupt(CPU 1): delayed! cycles 4370CCA7 rem
82659  next/now 5AA779EC42/5AA771C5E9

  Simone Mannori - ITALY
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Subject: Re: c8000::kernel hangs with 16G DRAM
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Please forget the previus post: it was a defective DIMM.
Booting with 12GB is OK and using another 2GB couple has fixed the issue.
I'm sorry for the false alarm.

   Simone Mannori - ITALY

On 14 April 2016 at 10:46, Simone Mannori <simone.mannori@gmail.com> wrote:
> Dear All,
>
> after upgrading the RAM to 16GB (8 x 2GB modules), the kernel hangs
> just after the "nouveau" module loading.
> With X1 ATI video card, the "radeon" driver has the very same behaviour.
> Booting without ANY video card is OK and the c8000 works perfectly
> (this exlude any memory realted issues like memory
> errors/defective/unmatched DIMM)
>
> With "nouveau" the serial console dump is:
>
> [  OK  ] Reached target Graphical Interface.
> [   73.932000] nuveau 0000:80:00.0: DRM: 0xABCE: Parsing digital
> output script table
>          Starting Update UTMP about Syste[   74.104000] nouveau
> 0000:80:00.0: DRM: 0xABCE: Parsing digital output script table
> m Runlevel Changes...
> [  OK  ] Started Update UTMP about System Runlevel Changes.
> [   95.616000] INFO: rcu_sched detected stalls on CPUs/tasks:
> [   95.680000]  (detected by 1, t=5272 jiffies, g=2108, c=2107, q=121)
> [   95.756000] All QSes seen, last rcu_sched kthread activity 5284
> (4294916235-4294910951), jiffies_till_next_fqs=1, root ->qsmask 0x0
> [   95.896000] dpkg            R  running task        0   941    938 0x00000014
> [   95.984000] Backtrace:
> [   96.012000]  [<0000000040215bc0>] show_stack+0x20/0x38
> [   96.072000]  [<00000000402756e4>] sched_show_task+0x134/0x1d0
> [   96.140000]  [<00000000402adc04>] rcu_check_callbacks+0x9bc/0x9c8
> [   96.216000]  [<00000000402b2494>] update_process_times+0x74/0xd8
> [   96.288000]  [<0000000040216edc>] timer_interrupt+0x1bc/0x220
> [   96.356000]  [<000000004029d714>] handle_irq_event_percpu+0xb4/0x250
> [   96.432000]  [<00000000402a3028>] handle_percpu_irq+0xa8/0xe8
> [   96.500000]  [<000000004029c99c>] generic_handle_irq+0x4c/0x68
> [   96.568000]  [<0000000040205308>] call_on_stack+0x18/0x24
> [   96.636000]
> [   96.652000] rcu_sched kthread starved for 5508 jiffies! g2108 c2107
> f0x2 s3 ->state=0x100
> [   96.752000] timer_interrupt(CPU 1): delayed! cycles 4370CCA7 rem
> 82659  next/now 5AA779EC42/5AA771C5E9
>
>   Simone Mannori - ITALY
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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: Re: [GIT PULL] parisc fixes for 4.6-rc2
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Cc: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
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To: Helge Deller <deller@gmx.de>
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On Sat, 9 Apr 2016, Helge Deller wrote:

> Hi Linus,
> 
> please pull some important fixes for the parisc architecture from:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.6-3
> 
> Since commit 0de7985 (parisc: Use generic extable search and sort routines)
> module loading is boken on parisc, because the parisc module loader wasn't
> prepared for the new R_PARISC_PCREL32 relocations.
> 
> In addition, due to that breakage, Mikulas Patocka noticed that handling
> exceptions from modules probably never worked on parisc. It was just masked by
> the fact that exceptions from modules don't happen during normal use.
> 
> This patch series fixes those issues and survives the tests of the
> lib/test_user_copy kernel module test.  Some patches are tagged for stable.
> 
> Thanks,
> Helge
> 
> ----------------------------------------------------------------
> Helge Deller (5):
>       parisc: Handle R_PARISC_PCREL32 relocations in kernel modules
>       parisc: Avoid function pointers for kernel exception routines
>       parisc: Fix kernel crash with reversed copy_from_user()
>       parisc: Unbreak handling exceptions from kernel modules
>       parisc: Update comment regarding relative extable support
> 
>  arch/parisc/include/asm/uaccess.h | 11 +++++------
>  arch/parisc/kernel/asm-offsets.c  |  1 +
>  arch/parisc/kernel/module.c       |  8 ++++++++
>  arch/parisc/kernel/parisc_ksyms.c | 10 +++++-----
>  arch/parisc/kernel/traps.c        |  3 +++
>  arch/parisc/lib/fixup.S           |  6 ++++++
>  arch/parisc/mm/fault.c            |  1 +
>  7 files changed, 29 insertions(+), 11 deletions(-)

Hi

I confirm that the kernel 4.6-rc3 fixes exception handling from modules.

Mikulas
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On 2016-04-14 4:14 AM, Simone Mannori wrote:
>> Do you know if c8000 can setup any non HP card (e.g., ATI Rage XL)?  It was reported that
>> >some old cards would work with PDC firmware in unaccelerated fb mode, but c8000 has
>> >x86 emulator so it might be able to enable accelerated 2d/3d.
> Good hint. I have several "vintage" PCI video cards to try (including
> ATI RAGE, Vodoo, etc.) but I can't because the have 5V PCI interface.
> HP c8000 have several PCI slots BUT PCI 3.3 volt ONLY. Find
> "universal" 5V/3V PCI card is possible but the only cards that I have
> find (the ATI 9200 128Mega) fails at "BIOS" time (see the first
> message of this thread).
It seems to me that an AGP card might be a better option.  The C8000 
manual indicates that
it has one AGP 8X Pro 110W 32-bit slot.  It looks from connector pinout 
in the Technical Reference
Guide that the C8000 has a AGP 1.5V motherboard (pins 9, 16, 25 and 28 
are VCC 1.5).

The HP "supported" FireGL cards are 1.5V, 0.8V:
http://www.synthmind.com/737-18872ATIAGPGraphicsCards-AGPComplianceDetails.pdf

So, I think one needs to look for a 1.5V or Universal AGP card.  The 
first ATI AGP card to
support 1.%V appears to be RAGE 128 PRO.

These articles give info about AGP slots and what works electrically:
http://www.playtool.com/pages/agpcompat/agp.html
https://en.wikipedia.org/wiki/Accelerated_Graphics_Port

Dave

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>
> It seems to me that an AGP card might be a better option.  The C8000 manual
> indicates that
> it has one AGP 8X Pro 110W 32-bit slot.  It looks from connector pinout in
> the Technical Reference
> Guide that the C8000 has a AGP 1.5V motherboard (pins 9, 16, 25 and 28 are
> VCC 1.5).
>
> The HP "supported" FireGL cards are 1.5V, 0.8V:
> http://www.synthmind.com/737-18872ATIAGPGraphicsCards-AGPComplianceDetails.pdf
>
> So, I think one needs to look for a 1.5V or Universal AGP card.  The first
> ATI AGP card to
> support 1.%V appears to be RAGE 128 PRO.
>
> These articles give info about AGP slots and what works electrically:
> http://www.playtool.com/pages/agpcompat/agp.html
> https://en.wikipedia.org/wiki/Accelerated_Graphics_Port

Very interesting and useful info, but they don't help us to fix the basic issue.

We have several AGP cards able to work correctly BUT in passive frame
buffer only mode, therefore the c8000, a quite fast quad core
workstation , with X11, looks like a bradypus instead that a
velociraptor.

This is the moment to recompile a custom kernel with some printk.

     Simone Mannori - ITALY
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On 2016-04-14 11:54 AM, Simone Mannori wrote:
> Very interesting and useful info, but they don't help us to fix the basic issue.
>
> We have several AGP cards able to work correctly BUT in passive frame
> buffer only mode, therefore the c8000, a quite fast quad core
> workstation , with X11, looks like a bradypus instead that a
> velociraptor.
>
> This is the moment to recompile a custom kernel with some printk.
>
I tried this a year or so ago.  I pretty much convinced myself that the 
firmware loaded
correctly, and that read and write operations seemed to work. However, I 
wasn't able
to find why the the ring buffer test failed.  I also checked that the 
firmware was identical
to that used on hpux.

There is an ATI document somewhere on the register interface.

I understand your frustration.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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On Sat, Apr 9, 2016 at 3:05 AM, Helge Deller <deller@gmx.de> wrote:
> This patch (v2) adds support for the parisc and parisc64 architectures
> to libseccomp.

Great!

> I didn't split up the patch, because it's pretty trivial.
> Those parisc-specific files gets added:
>  src/arch-parisc-syscalls.c
>  src/arch-parisc.c
>  src/arch-parisc.h
>  src/arch-parisc64.c
>
> All other changes are trivial because they simply add parisc-specific
> case statements in variouse switch statements.
>
> I noticed that when valgrind is not going to be used (e.g. because it's not
> installed), the test testsuite will issue no information about that. With this
> patch you will get informed if a testcase was SKIPPED because valgrind is not
> installed. This additional info is useful for architectures which aren't as
> fast as x86_64. On parisc it seemed that the whole testcase was hanging, now
> people know what's actually happening.

Would you mind separating out the valgrind portion of the patch into a
separate patch?  That is something we can merge regardless, as it
isn't pa-risc specific, and would be a nice addition.

> I did ran a "make check" sucessfully on x86_64 and parisc.
> The x86_64 didn't showed any issues, while on the parisc architecture
> the 29-sim-pseudo_syscall testcase failed. But it seems this testcase
> failure is not caused by this patch, instead it seems that it will fail
> on most other architectures beside x86_64 as well.

There should be no test failures on any of the arch/ABIs that
libseccomp supports.  Can you elaborate on the failure you are seeing
with 29-sim-pseudo_syscall?  Are you using a current libseccomp from
the master branch?

Also, it would be good to ensure that 'cd tests; ./regression -T live'
worked correctly; these tests aren't run automatically because they
are the live tests, but they need to pass before we merge the new
architecture.

> It would be nice if you could add this patch to the libseccomp git tree.
> The patch applies cleanly to current git head.
>
> Changes compared to v1 of this patch:
> - Enabled seccomp mode 2 regression tests on parisc. Kernel support for hppa
> was added in kernel 4.6-rc1 and backported into the kernel stable series.

So all necessary kernel support is now part of the 4.6-rcX kernels?

-- 
paul moore
www.paul-moore.com

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Dear All,

I'm using Debian 8.0 (linux-parisc) on a c8000 and I would like to
recompile the Linux kernel for debugging purposes, hoping to find and
fix the "[radeon] and [nouveau] passive frame buffer mode".

Q1: Which version you suggest? Stable /devevelopment / GIT ?

Q2: Where I can find it? (www.kernel.org ?)

Q3: Which GCC version? (4.x ? 5.x ?)

Q4: As ".config default", you suggest the Debian 8.0 one or you have a
better new one?

You have already suuggested me few [radeon] source files where put my
nose and what debugging tools I should use (printk). My actual problem
is to find the right kernel/gcc version (I've tried several
combinations, but the compilation stops with errors).

Thanks in advance for your help.

   Simone Mannori - ITALY
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Kernel for bug hunting
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This is a multi-part message in MIME format.
--------------050504040601010707060108
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

Hi Simone,

On 15.04.2016 07:04, Simone Mannori wrote:
> I'm using Debian 8.0 (linux-parisc) on a c8000 and I would like to
> recompile the Linux kernel for debugging purposes, hoping to find and
> fix the "[radeon] and [nouveau] passive frame buffer mode".
> 
> Q1: Which version you suggest? Stable /devevelopment / GIT ?

I'd suggest to use 4.5-stable, or alternatively the debian 4.5.1 kernel source.

> Q2: Where I can find it? (www.kernel.org ?)

Yes, either clone linux-4.5.y from git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
(http://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/),
or run "apt-get	update", "apt-get source linux" on debian.
For that you need this in /etc/apt/sources.list:
deb-src http://ftp.debian.org/debian unstable main

Then, run "apt-get build-dep linux" once to get the build-depends.

> Q3: Which GCC version? (4.x ? 5.x ?)

gcc-4.9.
Get's installed when you run "apt-get build-dep linux".

> Q4: As ".config default", you suggest the Debian 8.0 one or you have a
> better new one?

The debian one is fine, alternatively you could use the one I'm using (attached here).
"make c8000_defconfig" should work as well.

> You have already suuggested me few [radeon] source files where put my
> nose and what debugging tools I should use (printk). My actual problem
> is to find the right kernel/gcc version (I've tried several
> combinations, but the compilation stops with errors).

Hope the above answers helps.

Helge


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Perfect: now I have all the info that I need to start.

I'm going to clone your Linux branch.

Thanks a lot for your personal ".config" :-)

  Simone Mannori - ITALY



On 15 April 2016 at 10:41, Helge Deller <deller@gmx.de> wrote:
> Hi Simone,
>
> On 15.04.2016 07:04, Simone Mannori wrote:
>> I'm using Debian 8.0 (linux-parisc) on a c8000 and I would like to
>> recompile the Linux kernel for debugging purposes, hoping to find and
>> fix the "[radeon] and [nouveau] passive frame buffer mode".
>>
>> Q1: Which version you suggest? Stable /devevelopment / GIT ?
>
> I'd suggest to use 4.5-stable, or alternatively the debian 4.5.1 kernel source.
>
>> Q2: Where I can find it? (www.kernel.org ?)
>
> Yes, either clone linux-4.5.y from git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
> (http://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/),
> or run "apt-get update", "apt-get source linux" on debian.
> For that you need this in /etc/apt/sources.list:
> deb-src http://ftp.debian.org/debian unstable main
>
> Then, run "apt-get build-dep linux" once to get the build-depends.
>
>> Q3: Which GCC version? (4.x ? 5.x ?)
>
> gcc-4.9.
> Get's installed when you run "apt-get build-dep linux".
>
>> Q4: As ".config default", you suggest the Debian 8.0 one or you have a
>> better new one?
>
> The debian one is fine, alternatively you could use the one I'm using (attached here).
> "make c8000_defconfig" should work as well.
>
>> You have already suuggested me few [radeon] source files where put my
>> nose and what debugging tools I should use (printk). My actual problem
>> is to find the right kernel/gcc version (I've tried several
>> combinations, but the compilation stops with errors).
>
> Hope the above answers helps.
>
> Helge
>
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On 2016-04-15 4:41 AM, Helge Deller wrote:
>> Q3: Which GCC version? (4.x ? 5.x ?)
> gcc-4.9.
> Get's installed when you run "apt-get build-dep linux".
For c8000, you need 64-bit tools: gcc-4.9-hppa64.  4.9 is best tested 
but gcc-5
should work fine with recent kernels (gcc-5-hppa64-linux-gnu package).  
gcc-5
is used to build most packages, so the 32-bit version has been 
extensively tested.

Don't build debian config.  It takes too long as it builds almost 
everything.  Full
build of a c8000 specifig config takes about 30 minutes at -j8.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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Hi Helghe,

I'm very sorry to disturb by this "newbie issues" but I still have
errors at compile time

Inside a clean directory I have cloned the repository

git clone git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git

and everythings looks OK.

I have changed directory with to "cd linux-stable/"; then I have
verified the presence of other branches with "git branch -a"; then I
have checkout the branch that you told me using

git checkout -b hppa remotes/origin/linux-4.5.y

Now the situation looks perfect:
simone@blsw:~/kernel/git/linux-stable$ git branch
* hppa
  master

GCC looks good:
simone@blsw:~/kernel/git/linux-stable$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/hppa-linux-gnu/4.9/lto-wrapper
Target: hppa-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian
4.9.3-14' --with-bugurl=file:///usr/share/doc/gcc-4.9/README.Bugs
--enable-languages=c,c++,java,d,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.9 --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.9
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--enable-gnu-unique-object --disable-libssp --disable-libitm
--disable-libsanitizer --disable-libquadmath --enable-plugin
--with-system-zlib --disable-browser-plugin --enable-java-awt=gtk
--enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.9-hppa/jre
--enable-java-home
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.9-hppa
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.9-hppa
--with-arch-directory=parisc
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc
--enable-multiarch --disable-libstdcxx-pch --enable-checking=release
--build=hppa-linux-gnu --host=hppa-linux-gnu --target=hppa-linux-gnu
Thread model: posix
gcc version 4.9.3 (Debian 4.9.3-14)

I'm using your .config untouched.

BUT at compile time, I have a long list of errors (please see below
for the details).

Usually, I compile the Linux kernel dowloading the sources looking for
the right tar file.
Probably my git knowledge is too superficial and I'm doing something wrong.

Thanks in advance for you help.

  Simone Mannori - ITALY

//**---------------------------------------------------------------------------------------

In file included from ./arch/parisc/include/asm/bitops.h:211:0,
                 from include/linux/bitops.h:36,
                 from include/linux/kernel.h:10,
                 from ./arch/parisc/include/asm/bug.h:4,
                 from include/linux/bug.h:4,
                 from include/linux/page-flags.h:9,
                 from kernel/bounds.c:9:
include/asm-generic/bitops/__fls.h: In function '__fls':
include/asm-generic/bitops/__fls.h:17:2: warning: left shift count >=
width of type
  if (!(word & (~0ul << 32))) {
  ^
include/asm-generic/bitops/__fls.h:19:3: warning: left shift count >=
width of type
   word <<= 32;
   ^
include/asm-generic/bitops/__fls.h:22:2: warning: left shift count >=
width of type
  if (!(word & (~0ul << (BITS_PER_LONG-16)))) {
  ^
include/asm-generic/bitops/__fls.h:26:2: warning: left shift count >=
width of type
  if (!(word & (~0ul << (BITS_PER_LONG-8)))) {
  ^
include/asm-generic/bitops/__fls.h:30:2: warning: left shift count >=
width of type
  if (!(word & (~0ul << (BITS_PER_LONG-4)))) {
  ^
include/asm-generic/bitops/__fls.h:34:2: warning: left shift count >=
width of type
  if (!(word & (~0ul << (BITS_PER_LONG-2)))) {
  ^
include/asm-generic/bitops/__fls.h:38:2: warning: left shift count >=
width of type
  if (!(word & (~0ul << (BITS_PER_LONG-1))))
  ^
  CHK     include/generated/bounds.h
  UPD     include/generated/bounds.h
  CC      arch/parisc/kernel/asm-offsets.s
In file included from ./arch/parisc/include/asm/bitops.h:211:0,
                 from include/linux/bitops.h:36,
                 from include/linux/kernel.h:10,
                 from include/linux/sched.h:17,
                 from arch/parisc/kernel/asm-offsets.c:31:
include/asm-generic/bitops/__fls.h: In function '__fls':
include/asm-generic/bitops/__fls.h:17:2: warning: left shift count >=
width of type
  if (!(word & (~0ul << 32))) {
  ^
include/asm-generic/bitops/__fls.h:19:3: warning: left shift count >=
width of type
   word <<= 32;
   ^
include/asm-generic/bitops/__fls.h:22:2: warning: left shift count >=
width of type
  if (!(word & (~0ul << (BITS_PER_LONG-16)))) {
  ^
include/asm-generic/bitops/__fls.h:26:2: warning: left shift count >=
width of type
  if (!(word & (~0ul << (BITS_PER_LONG-8)))) {
  ^
include/asm-generic/bitops/__fls.h:30:2: warning: left shift count >=
width of type
  if (!(word & (~0ul << (BITS_PER_LONG-4)))) {
  ^
include/asm-generic/bitops/__fls.h:34:2: warning: left shift count >=
width of type
  if (!(word & (~0ul << (BITS_PER_LONG-2)))) {
  ^
include/asm-generic/bitops/__fls.h:38:2: warning: left shift count >=
width of type
  if (!(word & (~0ul << (BITS_PER_LONG-1))))
  ^
In file included from include/linux/ktime.h:297:0,
                 from include/linux/rcupdate.h:47,
                 from include/linux/rbtree.h:34,
                 from include/linux/sched.h:22,
                 from arch/parisc/kernel/asm-offsets.c:31:
include/linux/timekeeping.h: In function 'do_settimeofday':
include/linux/timekeeping.h:51:27: warning: passing argument 1 of
'do_settimeofday64' from incompatible pointer type
  return do_settimeofday64(ts);
                           ^
include/linux/timekeeping.h:13:12: note: expected 'const struct
timespec64 *' but argument is of type 'const struct timespec *'
 extern int do_settimeofday64(const struct timespec64 *ts);
            ^
include/linux/timekeeping.h: In function '__getnstimeofday':
include/linux/timekeeping.h:56:28: warning: passing argument 1 of
'__getnstimeofday64' from incompatible pointer type
  return __getnstimeofday64(ts);
                            ^
include/linux/timekeeping.h:41:12: note: expected 'struct timespec64
*' but argument is of type 'struct timespec *'
 extern int __getnstimeofday64(struct timespec64 *tv);
            ^
include/linux/timekeeping.h: In function 'getnstimeofday':
include/linux/timekeeping.h:61:19: warning: passing argument 1 of
'getnstimeofday64' from incompatible pointer type
  getnstimeofday64(ts);
                   ^
include/linux/timekeeping.h:42:13: note: expected 'struct timespec64
*' but argument is of type 'struct timespec *'
 extern void getnstimeofday64(struct timespec64 *tv);
             ^
include/linux/timekeeping.h: In function 'ktime_get_ts':
include/linux/timekeeping.h:66:17: warning: passing argument 1 of
'ktime_get_ts64' from incompatible pointer type
  ktime_get_ts64(ts);
                 ^
include/linux/timekeeping.h:37:13: note: expected 'struct timespec64
*' but argument is of type 'struct timespec *'
 extern void ktime_get_ts64(struct timespec64 *ts);
             ^
include/linux/timekeeping.h: In function 'ktime_get_real_ts':
include/linux/timekeeping.h:71:19: warning: passing argument 1 of
'getnstimeofday64' from incompatible pointer type
  getnstimeofday64(ts);
                   ^
include/linux/timekeeping.h:42:13: note: expected 'struct timespec64
*' but argument is of type 'struct timespec *'
 extern void getnstimeofday64(struct timespec64 *tv);
             ^
include/linux/timekeeping.h: In function 'getrawmonotonic':
include/linux/timekeeping.h:76:20: warning: passing argument 1 of
'getrawmonotonic64' from incompatible pointer type
  getrawmonotonic64(ts);
                    ^
include/linux/timekeeping.h:36:13: note: expected 'struct timespec64
*' but argument is of type 'struct timespec *'
 extern void getrawmonotonic64(struct timespec64 *ts);
             ^
include/linux/timekeeping.h: In function 'get_monotonic_coarse':
include/linux/timekeeping.h:81:2: error: incompatible types when
returning type 'struct timespec64' but 'struct timespec' was expected
  return get_monotonic_coarse64();
  ^
include/linux/timekeeping.h: In function 'getboottime':
include/linux/timekeeping.h:86:23: warning: passing argument 1 of
'getboottime64' from incompatible pointer type
  return getboottime64(ts);
                       ^
include/linux/timekeeping.h:43:13: note: expected 'struct timespec64
*' but argument is of type 'struct timespec *'
 extern void getboottime64(struct timespec64 *ts);
             ^
arch/parisc/kernel/asm-offsets.c: In function 'main':
arch/parisc/kernel/asm-offsets.c:286:2: warning: right shift count >=
width of type
  DEFINE(ASM_PGD_ENTRY, PAGE_OFFSET >> PGDIR_SHIFT);
  ^
Kbuild:80: recipe for target 'arch/parisc/kernel/asm-offsets.s' failed
make[1]: *** [arch/parisc/kernel/asm-offsets.s] Error 1
Makefile:993: recipe for target 'prepare0' failed
make: *** [prepare0] Error 2









On 15/04/2016, Helge Deller <deller@gmx.de> wrote:
> Hi Simone,
>
> On 15.04.2016 07:04, Simone Mannori wrote:
>> I'm using Debian 8.0 (linux-parisc) on a c8000 and I would like to
>> recompile the Linux kernel for debugging purposes, hoping to find and
>> fix the "[radeon] and [nouveau] passive frame buffer mode".
>>
>> Q1: Which version you suggest? Stable /devevelopment / GIT ?
>
> I'd suggest to use 4.5-stable, or alternatively the debian 4.5.1 kernel
> source.
>
>> Q2: Where I can find it? (www.kernel.org ?)
>
> Yes, either clone linux-4.5.y from
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
> (http://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/),
> or run "apt-get	update", "apt-get source linux" on debian.
> For that you need this in /etc/apt/sources.list:
> deb-src http://ftp.debian.org/debian unstable main
>
> Then, run "apt-get build-dep linux" once to get the build-depends.
>
>> Q3: Which GCC version? (4.x ? 5.x ?)
>
> gcc-4.9.
> Get's installed when you run "apt-get build-dep linux".
>
>> Q4: As ".config default", you suggest the Debian 8.0 one or you have a
>> better new one?
>
> The debian one is fine, alternatively you could use the one I'm using
> (attached here).
> "make c8000_defconfig" should work as well.
>
>> You have already suuggested me few [radeon] source files where put my
>> nose and what debugging tools I should use (printk). My actual problem
>> is to find the right kernel/gcc version (I've tried several
>> combinations, but the compilation stops with errors).
>
> Hope the above answers helps.
>
> Helge
>
>
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Hi Paul,

On 15.04.2016 01:14, Paul Moore wrote:
> On Sat, Apr 9, 2016 at 3:05 AM, Helge Deller <deller@gmx.de> wrote:
>> This patch (v2) adds support for the parisc and parisc64 architectures
>> to libseccomp.
> 
> Great!

>> I noticed that when valgrind is not going to be used (e.g. because it's not
>> installed), the test testsuite will issue no information about that. With this
>> patch you will get informed if a testcase was SKIPPED because valgrind is not
>> installed. This additional info is useful for architectures which aren't as
>> fast as x86_64. On parisc it seemed that the whole testcase was hanging, now
>> people know what's actually happening.
> 
> Would you mind separating out the valgrind portion of the patch into a
> separate patch?  
> That is something we can merge regardless, as it
> isn't pa-risc specific, and would be a nice addition.

Sure. I'll send it out in a few seconds.

>> I did ran a "make check" sucessfully on x86_64 and parisc.
>> The x86_64 didn't showed any issues, while on the parisc architecture
>> the 29-sim-pseudo_syscall testcase failed. But it seems this testcase
>> failure is not caused by this patch, instead it seems that it will fail
>> on most other architectures beside x86_64 as well.
> 
> There should be no test failures on any of the arch/ABIs that
> libseccomp supports.  Can you elaborate on the failure you are seeing
> with 29-sim-pseudo_syscall? 

I found the problem. Those testcases needed "pseudo" syscalls: 
19-sim-missing_syscalls -> tuxcall
29-sim-pseudo_syscall -> sysmips
It's fixed in the new patch (v3) which I send out in separate mail.

> Are you using a current libseccomp from the master branch?

Yes.

> Also, it would be good to ensure that 'cd tests; ./regression -T live'
> worked correctly; 

Yes, the new patch (v3) works as expected:
test type:  live
Test 20-live-basic_die%%001-00001 result:   SUCCESS
Test 20-live-basic_die%%002-00001 result:   SUCCESS
Test 20-live-basic_die%%003-00001 result:   SUCCESS
Test 21-live-basic_allow%%001-00001 result:   SUCCESS
Test 24-live-arg_allow%%001-00001 result:   SUCCESS
Test 32-live-tsync_allow%%001-00001 result:   SUCCESS
Regression Test Summary
 tests run: 6
 tests skipped: 0
 tests passed: 6
 tests failed: 0
 tests errored: 0

> So all necessary kernel support is now part of the 4.6-rcX kernels?

Yes, 4.6-rc1 has everything needed for libseccomp.
In addition, 4.5.2 (stable) will have the patches as well (4.5.1 was just released, 
but the patches are already queued up for 4.5.2 by the stable maintainers).

Helge

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Xref: news.gmane.org gmane.comp.lib.libseccomp.general:1342 gmane.linux.ports.parisc:26643
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Print a message if a regression test was skipped just because valgrind isn't
installed.

This additional info is useful for architectures (e.g. parisc) which aren't as
fast as x86_64. On parisc it seemed that the whole testcase was hanging, now
people know what's actually happening.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/tests/regression b/tests/regression
index 53d26b2..5949459 100755
--- a/tests/regression
+++ b/tests/regression
@@ -772,6 +773,7 @@ function run_test() {
 		if check_deps valgrind; then
 			run_test_bpf_valgrind "$testnumstr" "$3"
 		else
+			print_result $testnumstr "SKIPPED" "(valgrind not installed)"
 			stats_skipped=$(($stats_skipped+1))
 		fi
 	elif [[ "$4" == "live" ]]; then

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Newsgroups: gmane.comp.lib.libseccomp.general,gmane.linux.ports.parisc
Subject: [PATCH] libseccomp: Add parisc architecture support (v3)
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Xref: news.gmane.org gmane.comp.lib.libseccomp.general:1343 gmane.linux.ports.parisc:26644
Archived-At: <http://permalink.gmane.org/gmane.comp.lib.libseccomp.general/1343>

This patch (v3) adds support for the parisc and parisc64 architectures
to libseccomp.

I didn't split up the patch, because it's pretty trivial.
Those parisc-specific files gets added:
 src/arch-parisc-syscalls.c
 src/arch-parisc.c
 src/arch-parisc.h
 src/arch-parisc64.c

All other changes are trivial because they simply add parisc-specific
case statements in variouse switch statements.

I did ran a "make check" on parisc and all testcases suceeded.
All live testcases succeed as well when running "./regression -T live".

The patch applies cleanly to current libseccomp git head.

Changes between v2 and v1 of this patch:
- Enabled seccomp mode 2 regression tests on parisc. Kernel support for hppa
  was added in kernel 4.6-rc1 and backported into the kernel v4.5.2 stable
  series.

Changes between v3 and v2 of this patch:
- Stipped out patch which reports if a check was skipped because valgrind
  isn't installed.
- Added tuxcall pseudo syscall for 19-sim-missing_syscalls testcase
- Added sysmips pseudo syscall for 29-sim-pseudo_syscall testcase

Thanks,
Helge

Signed-off-by: Helge Deller <deller@gmx.de>

diffstat:
 include/seccomp.h.in              |    6 
 src/Makefile.am                   |    2 
 src/arch-parisc-syscalls.c        |  424 ++++++++++++++++++++++++++++++++++++++
 src/arch-parisc.c                 |   22 +
 src/arch-parisc.h                 |   38 +++
 src/arch-parisc64.c               |   22 +
 src/arch-syscall-dump.c           |    5 
 src/arch.c                        |   13 +
 src/gen_pfc.c                     |    4 
 src/python/libseccomp.pxd         |    2 
 src/python/seccomp.pyx            |    8 
 tests/26-sim-arch_all_be_basic.c  |    6 
 tests/26-sim-arch_all_be_basic.py |    2 
 tests/regression                  |    3 
 tools/scmp_arch_detect.c          |    6 
 tools/scmp_bpf_sim.c              |    4 
 tools/util.c                      |    4 
 17 files changed, 570 insertions(+), 1 deletion(-)

diff --git a/include/seccomp.h.in b/include/seccomp.h.in
index 6bf6751..5b9057f 100644
--- a/include/seccomp.h.in
+++ b/include/seccomp.h.in
@@ -185,6 +185,12 @@ struct scmp_arg_cmp {
 #define SCMP_ARCH_S390X		AUDIT_ARCH_S390X
 
 /**
+ * The PA-RISC hppa architecture tokens
+ */
+#define SCMP_ARCH_PARISC	AUDIT_ARCH_PARISC
+#define SCMP_ARCH_PARISC64	AUDIT_ARCH_PARISC64
+
+/**
  * Convert a syscall name into the associated syscall number
  * @param x the syscall name
  */
diff --git a/src/Makefile.am b/src/Makefile.am
index c2d805e..dcc79d9 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -35,6 +35,8 @@ SOURCES_ALL = \
 	arch-mips.h arch-mips.c arch-mips-syscalls.c \
 	arch-mips64.h arch-mips64.c arch-mips64-syscalls.c \
 	arch-mips64n32.h arch-mips64n32.c arch-mips64n32-syscalls.c \
+	arch-parisc.h arch-parisc.c arch-parisc-syscalls.c \
+	arch-parisc64.h arch-parisc64.c \
 	arch-ppc.h arch-ppc.c arch-ppc-syscalls.c \
 	arch-ppc64.h arch-ppc64.c arch-ppc64-syscalls.c \
 	arch-s390.h arch-s390.c arch-s390-syscalls.c \
diff --git a/src/arch-parisc-syscalls.c b/src/arch-parisc-syscalls.c
new file mode 100644
index 0000000..78474e1
--- /dev/null
+++ b/src/arch-parisc-syscalls.c
@@ -0,0 +1,424 @@
+/*
+ * Copyright 2016
+ * Author: Helge Deller <deller@gmx.de>
+ */
+
+#include <string.h>
+
+#include <seccomp.h>
+
+#include "arch.h"
+#include "arch-parisc.h"
+
+#ifndef __NR_Linux
+#define __NR_Linux 0
+#endif
+
+/* NOTE: based on Linux 4.3 */
+const struct arch_syscall_def parisc_syscall_table[] = { \
+	{ "_llseek",	(__NR_Linux + 140) },
+	{ "_newselect",	(__NR_Linux + 142) },
+	{ "_sysctl",	(__NR_Linux + 149) },
+	{ "accept4",	(__NR_Linux + 320) },
+	{ "accept",	(__NR_Linux + 35) },
+	{ "access",	(__NR_Linux + 33) },
+	{ "acct",	(__NR_Linux + 51) },
+	{ "acl_get",	(__NR_Linux + 204) },
+	{ "acl_set",	(__NR_Linux + 205) },
+	{ "add_key",	(__NR_Linux + 264) },
+	{ "adjtimex",	(__NR_Linux + 124) },
+	{ "afs_syscall",	(__NR_Linux + 137) },
+	{ "alarm",	(__NR_Linux + 27) },
+	{ "alloc_hugepages",	(__NR_Linux + 220) },
+	{ "attrctl",	(__NR_Linux + 203) },
+	{ "bdflush",	(__NR_Linux + 134) },
+	{ "bind",	(__NR_Linux + 22) },
+	{ "bpf",	(__NR_Linux + 341) },
+	{ "brk",	(__NR_Linux + 45) },
+	{ "capget",	(__NR_Linux + 106) },
+	{ "capset",	(__NR_Linux + 107) },
+	{ "chdir",	(__NR_Linux + 12) },
+	{ "chmod",	(__NR_Linux + 15) },
+	{ "chown",	(__NR_Linux + 180) },
+	{ "chroot",	(__NR_Linux + 61) },
+	{ "clock_adjtime",	(__NR_Linux + 324) },
+	{ "clock_getres",	(__NR_Linux + 257) },
+	{ "clock_gettime",	(__NR_Linux + 256) },
+	{ "clock_nanosleep",	(__NR_Linux + 258) },
+	{ "clock_settime",	(__NR_Linux + 255) },
+	{ "clone",	(__NR_Linux + 120) },
+	{ "close",	(__NR_Linux + 6) },
+	{ "connect",	(__NR_Linux + 31) },
+	{ "create_module",	(__NR_Linux + 127) },
+	{ "creat",	(__NR_Linux + 8) },
+	{ "delete_module",	(__NR_Linux + 129) },
+	{ "dup2",	(__NR_Linux + 63) },
+	{ "dup3",	(__NR_Linux + 312) },
+	{ "dup",	(__NR_Linux + 41) },
+	{ "epoll_create1",	(__NR_Linux + 311) },
+	{ "epoll_create",	(__NR_Linux + 224) },
+	{ "epoll_ctl",	(__NR_Linux + 225) },
+	{ "epoll_pwait",	(__NR_Linux + 297) },
+	{ "epoll_wait",	(__NR_Linux + 226) },
+	{ "eventfd2",	(__NR_Linux + 310) },
+	{ "eventfd",	(__NR_Linux + 304) },
+	{ "execveat",	(__NR_Linux + 342) },
+	{ "execve",	(__NR_Linux + 11) },
+	{ "exit_group",	(__NR_Linux + 222) },
+	{ "exit",	(__NR_Linux + 1) },
+	{ "faccessat",	(__NR_Linux + 287) },
+	{ "fadvise64_64",	(__NR_Linux + 236) },
+	{ "fallocate",	(__NR_Linux + 305) },
+	{ "fanotify_init",	(__NR_Linux + 322) },
+	{ "fanotify_mark",	(__NR_Linux + 323) },
+	{ "fchdir",	(__NR_Linux + 133) },
+	{ "fchmodat",	(__NR_Linux + 286) },
+	{ "fchmod",	(__NR_Linux + 94) },
+	{ "fchownat",	(__NR_Linux + 278) },
+	{ "fchown",	(__NR_Linux + 95) },
+	{ "fcntl64",	(__NR_Linux + 202) },
+	{ "fcntl",	(__NR_Linux + 55) },
+	{ "fdatasync",	(__NR_Linux + 148) },
+	{ "fgetxattr",	(__NR_Linux + 243) },
+	{ "finit_module",	(__NR_Linux + 333) },
+	{ "flistxattr",	(__NR_Linux + 246) },
+	{ "flock",	(__NR_Linux + 143) },
+	{ "fork",	(__NR_Linux + 2) },
+	{ "free_hugepages",	(__NR_Linux + 221) },
+	{ "fremovexattr",	(__NR_Linux + 249) },
+	{ "fsetxattr",	(__NR_Linux + 240) },
+	{ "fstat64",	(__NR_Linux + 112) },
+	{ "fstatat64",	(__NR_Linux + 280) },
+	{ "fstatfs64",	(__NR_Linux + 299) },
+	{ "fstatfs",	(__NR_Linux + 100) },
+	{ "fstat",	(__NR_Linux + 28) },
+	{ "fsync",	(__NR_Linux + 118) },
+	{ "ftruncate64",	(__NR_Linux + 200) },
+	{ "ftruncate",	(__NR_Linux + 93) },
+	{ "futex",	(__NR_Linux + 210) },
+	{ "futimesat",	(__NR_Linux + 279) },
+	{ "getcpu",	(__NR_Linux + 296) },
+	{ "getcwd",	(__NR_Linux + 110) },
+	{ "getdents64",	(__NR_Linux + 201) },
+	{ "getdents",	(__NR_Linux + 141) },
+	{ "getegid",	(__NR_Linux + 50) },
+	{ "geteuid",	(__NR_Linux + 49) },
+	{ "getgid",	(__NR_Linux + 47) },
+	{ "getgroups",	(__NR_Linux + 80) },
+	{ "getitimer",	(__NR_Linux + 105) },
+	{ "get_kernel_syms",	(__NR_Linux + 130) },
+	{ "get_mempolicy",	(__NR_Linux + 261) },
+	{ "getpeername",	(__NR_Linux + 53) },
+	{ "getpgid",	(__NR_Linux + 132) },
+	{ "getpgrp",	(__NR_Linux + 65) },
+	{ "getpid",	(__NR_Linux + 20) },
+	{ "getpmsg",	(__NR_Linux + 196) },
+	{ "getppid",	(__NR_Linux + 64) },
+	{ "getpriority",	(__NR_Linux + 96) },
+	{ "getrandom",	(__NR_Linux + 339) },
+	{ "getresgid",	(__NR_Linux + 171) },
+	{ "getresuid",	(__NR_Linux + 165) },
+	{ "getrlimit",	(__NR_Linux + 76) },
+	{ "get_robust_list",	(__NR_Linux + 290) },
+	{ "getrusage",	(__NR_Linux + 77) },
+	{ "getsid",	(__NR_Linux + 147) },
+	{ "getsockname",	(__NR_Linux + 44) },
+	{ "getsockopt",	(__NR_Linux + 182) },
+	{ "get_thread_area",	(__NR_Linux + 214) },
+	{ "gettid",	(__NR_Linux + 206) },
+	{ "gettimeofday",	(__NR_Linux + 78) },
+	{ "getuid",	(__NR_Linux + 24) },
+	{ "getxattr",	(__NR_Linux + 241) },
+	{ "init_module",	(__NR_Linux + 128) },
+	{ "inotify_add_watch",	(__NR_Linux + 270) },
+	{ "inotify_init1",	(__NR_Linux + 314) },
+	{ "inotify_init",	(__NR_Linux + 269) },
+	{ "inotify_rm_watch",	(__NR_Linux + 271) },
+	{ "io_cancel",	(__NR_Linux + 219) },
+	{ "ioctl",	(__NR_Linux + 54) },
+	{ "io_destroy",	(__NR_Linux + 216) },
+	{ "io_getevents",	(__NR_Linux + 217) },
+	{ "ioprio_get",	(__NR_Linux + 268) },
+	{ "ioprio_set",	(__NR_Linux + 267) },
+	{ "io_setup",	(__NR_Linux + 215) },
+	{ "io_submit",	(__NR_Linux + 218) },
+	{ "kcmp",	(__NR_Linux + 332) },
+	{ "kexec_load",	(__NR_Linux + 300) },
+	{ "keyctl",	(__NR_Linux + 266) },
+	{ "kill",	(__NR_Linux + 37) },
+	{ "lchown",	(__NR_Linux + 16) },
+	{ "lgetxattr",	(__NR_Linux + 242) },
+	{ "linkat",	(__NR_Linux + 283) },
+	{ "link",	(__NR_Linux + 9) },
+	{ "listen",	(__NR_Linux + 32) },
+	{ "listxattr",	(__NR_Linux + 244) },
+	{ "llistxattr",	(__NR_Linux + 245) },
+	{ "lookup_dcookie",	(__NR_Linux + 223) },
+	{ "lremovexattr",	(__NR_Linux + 248) },
+	{ "lseek",	(__NR_Linux + 19) },
+	{ "lsetxattr",	(__NR_Linux + 239) },
+	{ "lstat64",	(__NR_Linux + 198) },
+	{ "lstat",	(__NR_Linux + 84) },
+	{ "madvise",	(__NR_Linux + 119) },
+	{ "mbind",	(__NR_Linux + 260) },
+	{ "memfd_create",	(__NR_Linux + 340) },
+	{ "migrate_pages",	(__NR_Linux + 272) },
+	{ "mincore",	(__NR_Linux + 72) },
+	{ "mkdirat",	(__NR_Linux + 276) },
+	{ "mkdir",	(__NR_Linux + 39) },
+	{ "mknodat",	(__NR_Linux + 277) },
+	{ "mknod",	(__NR_Linux + 14) },
+	{ "mlockall",	(__NR_Linux + 152) },
+	{ "mlock",	(__NR_Linux + 150) },
+	{ "mmap2",	(__NR_Linux + 89) },
+	{ "mmap",	(__NR_Linux + 90) },
+	{ "mount",	(__NR_Linux + 21) },
+	{ "move_pages",	(__NR_Linux + 295) },
+	{ "mprotect",	(__NR_Linux + 125) },
+	{ "mq_getsetattr",	(__NR_Linux + 234) },
+	{ "mq_notify",	(__NR_Linux + 233) },
+	{ "mq_open",	(__NR_Linux + 229) },
+	{ "mq_timedreceive",	(__NR_Linux + 232) },
+	{ "mq_timedsend",	(__NR_Linux + 231) },
+	{ "mq_unlink",	(__NR_Linux + 230) },
+	{ "mremap",	(__NR_Linux + 163) },
+	{ "msgctl",	(__NR_Linux + 191) },
+	{ "msgget",	(__NR_Linux + 190) },
+	{ "msgrcv",	(__NR_Linux + 189) },
+	{ "msgsnd",	(__NR_Linux + 188) },
+	{ "msync",	(__NR_Linux + 144) },
+	{ "munlockall",	(__NR_Linux + 153) },
+	{ "munlock",	(__NR_Linux + 151) },
+	{ "munmap",	(__NR_Linux + 91) },
+	{ "name_to_handle_at",	(__NR_Linux + 325) },
+	{ "nanosleep",	(__NR_Linux + 162) },
+	{ "nfsservctl",	(__NR_Linux + 169) },
+	{ "nice",	(__NR_Linux + 34) },
+	{ "openat",	(__NR_Linux + 275) },
+	{ "open_by_handle_at",	(__NR_Linux + 326) },
+	{ "open",	(__NR_Linux + 5) },
+	{ "pause",	(__NR_Linux + 29) },
+	{ "perf_event_open",	(__NR_Linux + 318) },
+	{ "personality",	(__NR_Linux + 136) },
+	{ "pipe2",	(__NR_Linux + 313) },
+	{ "pipe",	(__NR_Linux + 42) },
+	{ "pivot_root",	(__NR_Linux + 67) },
+	{ "poll",	(__NR_Linux + 168) },
+	{ "ppoll",	(__NR_Linux + 274) },
+	{ "prctl",	(__NR_Linux + 172) },
+	{ "pread64",	(__NR_Linux + 108) },
+	{ "preadv",	(__NR_Linux + 315) },
+	{ "prlimit64",	(__NR_Linux + 321) },
+	{ "process_vm_readv",	(__NR_Linux + 330) },
+	{ "process_vm_writev",	(__NR_Linux + 331) },
+	{ "pselect6",	(__NR_Linux + 273) },
+	{ "ptrace",	(__NR_Linux + 26) },
+	{ "putpmsg",	(__NR_Linux + 197) },
+	{ "pwrite64",	(__NR_Linux + 109) },
+	{ "pwritev",	(__NR_Linux + 316) },
+	{ "query_module",	(__NR_Linux + 167) },
+	{ "quotactl",	(__NR_Linux + 131) },
+	{ "readahead",	(__NR_Linux + 207) },
+	{ "readlinkat",	(__NR_Linux + 285) },
+	{ "readlink",	(__NR_Linux + 85) },
+	{ "read",	(__NR_Linux + 3) },
+	{ "readv",	(__NR_Linux + 145) },
+	{ "reboot",	(__NR_Linux + 88) },
+	{ "recvfrom",	(__NR_Linux + 123) },
+	{ "recvmmsg",	(__NR_Linux + 319) },
+	{ "recvmsg",	(__NR_Linux + 184) },
+	{ "recv",	(__NR_Linux + 98) },
+	{ "remap_file_pages",	(__NR_Linux + 227) },
+	{ "removexattr",	(__NR_Linux + 247) },
+	{ "renameat2",	(__NR_Linux + 337) },
+	{ "renameat",	(__NR_Linux + 282) },
+	{ "rename",	(__NR_Linux + 38) },
+	{ "request_key",	(__NR_Linux + 265) },
+	{ "restart_syscall",	(__NR_Linux + 0) },
+	{ "rmdir",	(__NR_Linux + 40) },
+	{ "rt_sigaction",	(__NR_Linux + 174) },
+	{ "rt_sigpending",	(__NR_Linux + 176) },
+	{ "rt_sigprocmask",	(__NR_Linux + 175) },
+	{ "rt_sigqueueinfo",	(__NR_Linux + 178) },
+	{ "rt_sigreturn",	(__NR_Linux + 173) },
+	{ "rt_sigsuspend",	(__NR_Linux + 179) },
+	{ "rt_sigtimedwait",	(__NR_Linux + 177) },
+	{ "rt_tgsigqueueinfo",	(__NR_Linux + 317) },
+	{ "sched_getaffinity",	(__NR_Linux + 212) },
+	{ "sched_getattr",	(__NR_Linux + 335) },
+	{ "sched_getparam",	(__NR_Linux + 155) },
+	{ "sched_get_priority_max",	(__NR_Linux + 159) },
+	{ "sched_get_priority_min",	(__NR_Linux + 160) },
+	{ "sched_getscheduler",	(__NR_Linux + 157) },
+	{ "sched_rr_get_interval",	(__NR_Linux + 161) },
+	{ "sched_setaffinity",	(__NR_Linux + 211) },
+	{ "sched_setattr",	(__NR_Linux + 334) },
+	{ "sched_setparam",	(__NR_Linux + 154) },
+	{ "sched_setscheduler",	(__NR_Linux + 156) },
+	{ "sched_yield",	(__NR_Linux + 158) },
+	{ "seccomp",	(__NR_Linux + 338) },
+	{ "semctl",	(__NR_Linux + 187) },
+	{ "semget",	(__NR_Linux + 186) },
+	{ "semop",	(__NR_Linux + 185) },
+	{ "semtimedop",	(__NR_Linux + 228) },
+	{ "sendfile64",	(__NR_Linux + 209) },
+	{ "sendfile",	(__NR_Linux + 122) },
+	{ "sendmmsg",	(__NR_Linux + 329) },
+	{ "sendmsg",	(__NR_Linux + 183) },
+	{ "send",	(__NR_Linux + 58) },
+	{ "sendto",	(__NR_Linux + 82) },
+	{ "setdomainname",	(__NR_Linux + 121) },
+	{ "setfsgid",	(__NR_Linux + 139) },
+	{ "setfsuid",	(__NR_Linux + 138) },
+	{ "setgid",	(__NR_Linux + 46) },
+	{ "setgroups",	(__NR_Linux + 81) },
+	{ "sethostname",	(__NR_Linux + 74) },
+	{ "setitimer",	(__NR_Linux + 104) },
+	{ "set_mempolicy",	(__NR_Linux + 262) },
+	{ "setns",	(__NR_Linux + 328) },
+	{ "setpgid",	(__NR_Linux + 57) },
+	{ "setpriority",	(__NR_Linux + 97) },
+	{ "setregid",	(__NR_Linux + 71) },
+	{ "setresgid",	(__NR_Linux + 170) },
+	{ "setresuid",	(__NR_Linux + 164) },
+	{ "setreuid",	(__NR_Linux + 70) },
+	{ "setrlimit",	(__NR_Linux + 75) },
+	{ "set_robust_list",	(__NR_Linux + 289) },
+	{ "setsid",	(__NR_Linux + 66) },
+	{ "setsockopt",	(__NR_Linux + 181) },
+	{ "set_thread_area",	(__NR_Linux + 213) },
+	{ "set_tid_address",	(__NR_Linux + 237) },
+	{ "settimeofday",	(__NR_Linux + 79) },
+	{ "setuid",	(__NR_Linux + 23) },
+	{ "setxattr",	(__NR_Linux + 238) },
+	{ "sgetmask",	(__NR_Linux + 68) },
+	{ "shmat",	(__NR_Linux + 192) },
+	{ "shmctl",	(__NR_Linux + 195) },
+	{ "shmdt",	(__NR_Linux + 193) },
+	{ "shmget",	(__NR_Linux + 194) },
+	{ "shutdown",	(__NR_Linux + 117) },
+	{ "sigaltstack",	(__NR_Linux + 166) },
+	{ "signalfd4",	(__NR_Linux + 309) },
+	{ "signalfd",	(__NR_Linux + 302) },
+	{ "signal",	(__NR_Linux + 48) },
+	{ "sigpending",	(__NR_Linux + 73) },
+	{ "sigprocmask",	(__NR_Linux + 126) },
+	{ "socket",	(__NR_Linux + 17) },
+	{ "socketpair",	(__NR_Linux + 56) },
+	{ "splice",	(__NR_Linux + 291) },
+	{ "ssetmask",	(__NR_Linux + 69) },
+	{ "stat64",	(__NR_Linux + 101) },
+	{ "statfs64",	(__NR_Linux + 298) },
+	{ "statfs",	(__NR_Linux + 99) },
+	{ "stat",	(__NR_Linux + 18) },
+	{ "stime",	(__NR_Linux + 25) },
+	{ "swapoff",	(__NR_Linux + 115) },
+	{ "swapon",	(__NR_Linux + 87) },
+	{ "symlinkat",	(__NR_Linux + 284) },
+	{ "symlink",	(__NR_Linux + 83) },
+	{ "sync_file_range",	(__NR_Linux + 292) },
+	{ "syncfs",	(__NR_Linux + 327) },
+	{ "sync",	(__NR_Linux + 36) },
+	{ "sysfs",	(__NR_Linux + 135) },
+	{ "sysmips",	__PNR_sysmips },
+	{ "sysinfo",	(__NR_Linux + 116) },
+	{ "syslog",	(__NR_Linux + 103) },
+	{ "tee",	(__NR_Linux + 293) },
+	{ "tgkill",	(__NR_Linux + 259) },
+	{ "time",	(__NR_Linux + 13) },
+	{ "timer_create",	(__NR_Linux + 250) },
+	{ "timer_delete",	(__NR_Linux + 254) },
+	{ "timerfd_create",	(__NR_Linux + 306) },
+	{ "timerfd_gettime",	(__NR_Linux + 308) },
+	{ "timerfd",	(__NR_Linux + 303) },
+	{ "timerfd_settime",	(__NR_Linux + 307) },
+	{ "timer_getoverrun",	(__NR_Linux + 253) },
+	{ "timer_gettime",	(__NR_Linux + 252) },
+	{ "timer_settime",	(__NR_Linux + 251) },
+	{ "times",	(__NR_Linux + 43) },
+	{ "tkill",	(__NR_Linux + 208) },
+	{ "truncate64",	(__NR_Linux + 199) },
+	{ "truncate",	(__NR_Linux + 92) },
+	{ "tuxcall",	__PNR_tuxcall },
+	{ "umask",	(__NR_Linux + 60) },
+	{ "umount2",	(__NR_Linux + 52) },
+	{ "uname",	(__NR_Linux + 59) },
+	{ "unlinkat",	(__NR_Linux + 281) },
+	{ "unlink",	(__NR_Linux + 10) },
+	{ "unshare",	(__NR_Linux + 288) },
+	{ "uselib",	(__NR_Linux + 86) },
+	{ "ustat",	(__NR_Linux + 62) },
+	{ "utime",	(__NR_Linux + 30) },
+	{ "utimensat",	(__NR_Linux + 301) },
+	{ "utimes",	(__NR_Linux + 336) },
+	{ "vfork",	(__NR_Linux + 113) },
+	{ "vhangup",	(__NR_Linux + 111) },
+	{ "vmsplice",	(__NR_Linux + 294) },
+	{ "vserver",	(__NR_Linux + 263) },
+	{ "wait4",	(__NR_Linux + 114) },
+	{ "waitid",	(__NR_Linux + 235) },
+	{ "waitpid",	(__NR_Linux + 7) },
+	{ "write",	(__NR_Linux + 4) },
+	{ "writev",	(__NR_Linux + 146) },
+	{ NULL, __NR_SCMP_ERROR },
+};
+
+/**
+ * Resolve a syscall name to a number
+ * @param name the syscall name
+ *
+ * Resolve the given syscall name to the syscall number using the syscall table.
+ * Returns the syscall number on success, including negative pseudo syscall
+ * numbers; returns __NR_SCMP_ERROR on failure.
+ *
+ */
+int parisc_syscall_resolve_name(const char *name)
+{
+	unsigned int iter;
+	const struct arch_syscall_def *table = parisc_syscall_table;
+
+	/* XXX - plenty of room for future improvement here */
+	for (iter = 0; table[iter].name != NULL; iter++) {
+		if (strcmp(name, table[iter].name) == 0)
+			return table[iter].num;
+	}
+
+	return __NR_SCMP_ERROR;
+}
+
+/**
+ * Resolve a syscall number to a name
+ * @param num the syscall number
+ *
+ * Resolve the given syscall number to the syscall name using the syscall table.
+ * Returns a pointer to the syscall name string on success, including pseudo
+ * syscall names; returns NULL on failure.
+ *
+ */
+const char *parisc_syscall_resolve_num(int num)
+{
+	unsigned int iter;
+	const struct arch_syscall_def *table = parisc_syscall_table;
+
+	/* XXX - plenty of room for future improvement here */
+	for (iter = 0; table[iter].num != __NR_SCMP_ERROR; iter++) {
+		if (num == table[iter].num)
+			return table[iter].name;
+	}
+
+	return NULL;
+}
+
+/**
+ * Iterate through the syscall table and return the syscall name
+ * @param spot the offset into the syscall table
+ *
+ * Return the syscall name at position @spot or NULL on failure.  This function
+ * should only ever be used internally by libseccomp.
+ *
+ */
+const char *parisc_syscall_iterate_name(unsigned int spot)
+{
+	/* XXX - no safety checks here */
+	return parisc_syscall_table[spot].name;
+}
diff --git a/src/arch-parisc.c b/src/arch-parisc.c
new file mode 100644
index 0000000..6407f8a
--- /dev/null
+++ b/src/arch-parisc.c
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2016
+ * Author: Helge Deller <deller@gmx.de>
+ */
+
+#include <stdlib.h>
+#include <errno.h>
+#include <linux/audit.h>
+
+#include "arch.h"
+#include "arch-parisc.h"
+
+const struct arch_def arch_def_parisc = {
+	.token = SCMP_ARCH_PARISC,
+	.token_bpf = AUDIT_ARCH_PARISC,
+	.size = ARCH_SIZE_32,
+	.endian = ARCH_ENDIAN_BIG,
+	.syscall_resolve_name = parisc_syscall_resolve_name,
+	.syscall_resolve_num = parisc_syscall_resolve_num,
+	.syscall_rewrite = NULL,
+	.rule_add = NULL,
+};
diff --git a/src/arch-parisc.h b/src/arch-parisc.h
new file mode 100644
index 0000000..b9fe1df
--- /dev/null
+++ b/src/arch-parisc.h
@@ -0,0 +1,38 @@
+/**
+ * Enhanced Seccomp PARISC Specific Code
+ *
+ * Copyright (c) 2016 Helge Deller <deller@gmx.de>
+ *
+ */
+
+/*
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <http://www.gnu.org/licenses>.
+ */
+
+#ifndef _ARCH_PARISC_H
+#define _ARCH_PARISC_H
+
+#include <inttypes.h>
+
+#include "arch.h"
+#include "system.h"
+
+extern const struct arch_def arch_def_parisc;
+extern const struct arch_def arch_def_parisc64;
+
+int parisc_syscall_resolve_name(const char *name);
+const char *parisc_syscall_resolve_num(int num);
+
+const char *parisc_syscall_iterate_name(unsigned int spot);
+
+#endif
diff --git a/src/arch-parisc64.c b/src/arch-parisc64.c
new file mode 100644
index 0000000..b75a182
--- /dev/null
+++ b/src/arch-parisc64.c
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2016
+ * Author: Helge Deller <deller@gmx.de>
+*/
+
+#include <stdlib.h>
+#include <errno.h>
+#include <linux/audit.h>
+
+#include "arch.h"
+#include "arch-parisc.h"
+
+const struct arch_def arch_def_parisc64 = {
+	.token = SCMP_ARCH_PARISC64,
+	.token_bpf = AUDIT_ARCH_PARISC64,
+	.size = ARCH_SIZE_64,
+	.endian = ARCH_ENDIAN_BIG,
+	.syscall_resolve_name = parisc_syscall_resolve_name,
+	.syscall_resolve_num = parisc_syscall_resolve_num,
+	.syscall_rewrite = NULL,
+	.rule_add = NULL,
+};
diff --git a/src/arch-syscall-dump.c b/src/arch-syscall-dump.c
index 636fd9a..c95b899 100644
--- a/src/arch-syscall-dump.c
+++ b/src/arch-syscall-dump.c
@@ -38,6 +38,7 @@
 #include "arch-mips64.h"
 #include "arch-mips64n32.h"
 #include "arch-aarch64.h"
+#include "arch-parisc.h"
 #include "arch-ppc.h"
 #include "arch-ppc64.h"
 #include "arch-s390.h"
@@ -116,6 +117,10 @@ int main(int argc, char *argv[])
 		case SCMP_ARCH_MIPSEL64N32:
 			sys_name = mips64n32_syscall_iterate_name(iter);
 			break;
+		case SCMP_ARCH_PARISC:
+		case SCMP_ARCH_PARISC64:
+			sys_name = parisc_syscall_iterate_name(iter);
+			break;
 		case SCMP_ARCH_PPC:
 			sys_name = ppc_syscall_iterate_name(iter);
 			break;
diff --git a/src/arch.c b/src/arch.c
index 0f24d1c..f5a898d 100644
--- a/src/arch.c
+++ b/src/arch.c
@@ -38,6 +38,7 @@
 #include "arch-mips.h"
 #include "arch-mips64.h"
 #include "arch-mips64n32.h"
+#include "arch-parisc.h"
 #include "arch-ppc.h"
 #include "arch-ppc64.h"
 #include "arch-s390.h"
@@ -79,6 +80,10 @@ const struct arch_def *arch_def_native = &arch_def_mips64n32;
 #elif __MIPSEL__
 const struct arch_def *arch_def_native = &arch_def_mipsel64n32;
 #endif /* _MIPS_SIM_NABI32 */
+#elif __hppa64__ /* hppa64 must be checked before hppa */
+const struct arch_def *arch_def_native = &arch_def_parisc64;
+#elif __hppa__
+const struct arch_def *arch_def_native = &arch_def_parisc;
 #elif __PPC64__
 #ifdef __BIG_ENDIAN__
 const struct arch_def *arch_def_native = &arch_def_ppc64;
@@ -139,6 +144,10 @@ const struct arch_def *arch_def_lookup(uint32_t token)
 		return &arch_def_mips64n32;
 	case SCMP_ARCH_MIPSEL64N32:
 		return &arch_def_mipsel64n32;
+	case SCMP_ARCH_PARISC:
+		return &arch_def_parisc;
+	case SCMP_ARCH_PARISC64:
+		return &arch_def_parisc64;
 	case SCMP_ARCH_PPC:
 		return &arch_def_ppc;
 	case SCMP_ARCH_PPC64:
@@ -185,6 +194,10 @@ const struct arch_def *arch_def_lookup_name(const char *arch_name)
 		return &arch_def_mips64n32;
 	else if (strcmp(arch_name, "mipsel64n32") == 0)
 		return &arch_def_mipsel64n32;
+	else if (strcmp(arch_name, "parisc64") == 0)
+		return &arch_def_parisc64;
+	else if (strcmp(arch_name, "parisc") == 0)
+		return &arch_def_parisc;
 	else if (strcmp(arch_name, "ppc") == 0)
 		return &arch_def_ppc;
 	else if (strcmp(arch_name, "ppc64") == 0)
diff --git a/src/gen_pfc.c b/src/gen_pfc.c
index 99c3297..b9c122e 100644
--- a/src/gen_pfc.c
+++ b/src/gen_pfc.c
@@ -71,6 +71,10 @@ static const char *_pfc_arch(const struct arch_def *arch)
 		return "mips64n32";
 	case SCMP_ARCH_MIPSEL64N32:
 		return "mipsel64n32";
+	case SCMP_ARCH_PARISC:
+		return "parisc";
+	case SCMP_ARCH_PARISC64:
+		return "parisc64";
 	case SCMP_ARCH_PPC64:
 		return "ppc64";
 	case SCMP_ARCH_PPC64LE:
diff --git a/src/python/libseccomp.pxd b/src/python/libseccomp.pxd
index 15c94f8..500da15 100644
--- a/src/python/libseccomp.pxd
+++ b/src/python/libseccomp.pxd
@@ -43,6 +43,8 @@ cdef extern from "seccomp.h":
         SCMP_ARCH_MIPSEL
         SCMP_ARCH_MIPSEL64
         SCMP_ARCH_MIPSEL64N32
+        SCMP_ARCH_PARISC
+        SCMP_ARCH_PARISC64
         SCMP_ARCH_PPC
         SCMP_ARCH_PPC64
         SCMP_ARCH_PPC64LE
diff --git a/src/python/seccomp.pyx b/src/python/seccomp.pyx
index c87bc3f..cb17642 100644
--- a/src/python/seccomp.pyx
+++ b/src/python/seccomp.pyx
@@ -147,6 +147,8 @@ cdef class Arch:
     MIPSEL - MIPS little endian O32 ABI
     MIPSEL64 - MIPS little endian 64-bit ABI
     MIPSEL64N32 - MIPS little endian N32 ABI
+    PARISC - 32-bit PA-RISC
+    PARISC64 - 64-bit PA-RISC
     PPC64 - 64-bit PowerPC
     PPC - 32-bit PowerPC
     """
@@ -165,6 +167,8 @@ cdef class Arch:
     MIPSEL = libseccomp.SCMP_ARCH_MIPSEL
     MIPSEL64 = libseccomp.SCMP_ARCH_MIPSEL64
     MIPSEL64N32 = libseccomp.SCMP_ARCH_MIPSEL64N32
+    PARISC = libseccomp.SCMP_ARCH_PARISC
+    PARISC64 = libseccomp.SCMP_ARCH_PARISC64
     PPC = libseccomp.SCMP_ARCH_PPC
     PPC64 = libseccomp.SCMP_ARCH_PPC64
     PPC64LE = libseccomp.SCMP_ARCH_PPC64LE
@@ -205,6 +209,10 @@ cdef class Arch:
                 self._token = libseccomp.SCMP_ARCH_MIPSEL64
             elif arch == libseccomp.SCMP_ARCH_MIPSEL64N32:
                 self._token = libseccomp.SCMP_ARCH_MIPSEL64N32
+            elif arch == libseccomp.SCMP_ARCH_PARISC:
+                self._token = libseccomp.SCMP_ARCH_PARISC
+            elif arch == libseccomp.SCMP_ARCH_PARISC64:
+                self._token = libseccomp.SCMP_ARCH_PARISC64
             elif arch == libseccomp.SCMP_ARCH_PPC:
                 self._token = libseccomp.SCMP_ARCH_PPC
             elif arch == libseccomp.SCMP_ARCH_PPC64:
diff --git a/tests/26-sim-arch_all_be_basic.c b/tests/26-sim-arch_all_be_basic.c
index d2c191c..d31ce12 100644
--- a/tests/26-sim-arch_all_be_basic.c
+++ b/tests/26-sim-arch_all_be_basic.c
@@ -52,6 +52,12 @@ int main(int argc, char *argv[])
 	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("mips64n32"));
 	if (rc != 0)
 		goto out;
+	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("parisc"));
+	if (rc != 0)
+		goto out;
+	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("parisc64"));
+	if (rc != 0)
+		goto out;
 	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("ppc"));
 	if (rc != 0)
 		goto out;
diff --git a/tests/26-sim-arch_all_be_basic.py b/tests/26-sim-arch_all_be_basic.py
index b0b660a..3a177b4 100755
--- a/tests/26-sim-arch_all_be_basic.py
+++ b/tests/26-sim-arch_all_be_basic.py
@@ -33,6 +33,8 @@ def test(args):
     f.add_arch(Arch("mips"))
     f.add_arch(Arch("mips64"))
     f.add_arch(Arch("mips64n32"))
+    f.add_arch(Arch("parisc"))
+    f.add_arch(Arch("parisc64"))
     f.add_arch(Arch("ppc"))
     f.add_arch(Arch("ppc64"))
     f.add_arch(Arch("s390"))
diff --git a/tests/regression b/tests/regression
index 53d26b2..5949459 100755
--- a/tests/regression
+++ b/tests/regression
@@ -28,6 +28,7 @@ GLBL_ARCH_LE_SUPPORT=" \
 	ppc64le"
 GLBL_ARCH_BE_SUPPORT=" \
 	mips mips64 mips64n32 \
+	parisc parisc64 \
 	ppc ppc64 \
 	s390 s390x"
 
@@ -701,7 +702,7 @@ function run_test_live() {
 
 	# setup the arch specific return values
 	case "$arch" in
-	x86|x86_64|x32|arm|aarch64|ppc|ppc64|ppc64le|ppc|s390|s390x)
+	x86|x86_64|x32|arm|aarch64|parisc|parisc64|ppc|ppc64|ppc64le|ppc|s390|s390x)
 		rc_kill=159
 		rc_allow=160
 		rc_trap=161
diff --git a/tools/scmp_arch_detect.c b/tools/scmp_arch_detect.c
index 4b452d1..ad43f2d 100644
--- a/tools/scmp_arch_detect.c
+++ b/tools/scmp_arch_detect.c
@@ -99,6 +99,12 @@ int main(int argc, char *argv[])
 		case SCMP_ARCH_MIPSEL64N32:
 			printf("mipsel64n32\n");
 			break;
+		case SCMP_ARCH_PARISC:
+			printf("parisc\n");
+			break;
+		case SCMP_ARCH_PARISC64:
+			printf("parisc64\n");
+			break;
 		case SCMP_ARCH_PPC:
 			printf("ppc\n");
 			break;
diff --git a/tools/scmp_bpf_sim.c b/tools/scmp_bpf_sim.c
index a0cf6d1..3d3204a 100644
--- a/tools/scmp_bpf_sim.c
+++ b/tools/scmp_bpf_sim.c
@@ -265,6 +265,10 @@ int main(int argc, char *argv[])
 				arch = AUDIT_ARCH_MIPS64N32;
 			else if (strcmp(optarg, "mipsel64n32") == 0)
 				arch = AUDIT_ARCH_MIPSEL64N32;
+			else if (strcmp(optarg, "parisc") == 0)
+				arch = AUDIT_ARCH_PARISC;
+			else if (strcmp(optarg, "parisc64") == 0)
+				arch = AUDIT_ARCH_PARISC64;
 			else if (strcmp(optarg, "ppc") == 0)
 				arch = AUDIT_ARCH_PPC;
 			else if (strcmp(optarg, "ppc64") == 0)
diff --git a/tools/util.c b/tools/util.c
index cc48647..7122335 100644
--- a/tools/util.c
+++ b/tools/util.c
@@ -62,6 +62,10 @@
 #elif __MIPSEL__
 #define ARCH_NATIVE		AUDIT_ARCH_MIPSEL64N32
 #endif /* _MIPS_SIM_NABI32 */
+#elif __hppa64__
+#define ARCH_NATIVE		AUDIT_ARCH_PARISC64
+#elif __hppa__
+#define ARCH_NATIVE		AUDIT_ARCH_PARISC
 #elif __PPC64__
 #ifdef __BIG_ENDIAN__
 #define ARCH_NATIVE		AUDIT_ARCH_PPC64

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On 15.04.2016 16:57, Simone Mannori wrote:
> Inside a clean directory I have cloned the repository
> 
> git clone git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
> 
> and everythings looks OK.
> 
> I have changed directory with to "cd linux-stable/"; then I have
> verified the presence of other branches with "git branch -a"; then I
> have checkout the branch that you told me using
> 
> git checkout -b hppa remotes/origin/linux-4.5.y
> 
> Now the situation looks perfect:
> simone@blsw:~/kernel/git/linux-stable$ git branch
> * hppa
>   master
> 
> GCC looks good:
> simone@blsw:~/kernel/git/linux-stable$ gcc -v

As Dave mentioned, you need the 64bit hppa compiler (gcc-4.9-hppa64).

root@phantom:~# hppa64-linux-gnu-gcc-4.9 --version
hppa64-linux-gnu-gcc-4.9 (GCC) 4.9.3
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Run 
"apt-get install gcc-4.9-hppa64", or even better:
"apt-get build-dep linux"  to get all packages required to build the kernel (see my other mail).

> I'm using your .config untouched.

Try:
make ARCH=parisc oldconfig
make ARCH=parisc vmlinux modules

Helge
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Hi Linus,

This is (most likely) the last pull request for v4.6 for the parisc architecture.

It fixes the FTRACE feature for parisc, which is horribly broken since quite
some time and doesn't even compile.  This patch just fixes the bare minimum (it
actually removes more lines than it adds), so that the function tracer works
again on 32- and 64bit kernels.

I've queued up additional patches on top of this patch which e.g. add the
syscall tracer, but those have to wait for the merge window for v4.7.

Please pull from 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.6-4

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (1):
      parisc: Fix ftrace function tracer

 arch/parisc/Kconfig              |   4 +-
 arch/parisc/Kconfig.debug        |   4 ++
 arch/parisc/Makefile             |   4 +-
 arch/parisc/include/asm/ftrace.h |  18 +----
 arch/parisc/kernel/Makefile      |   4 --
 arch/parisc/kernel/entry.S       |  93 ++++++++++++++++++++-----
 arch/parisc/kernel/ftrace.c      | 146 ++++++---------------------------------
 arch/parisc/kernel/head.S        |   9 +++
 8 files changed, 114 insertions(+), 168 deletions(-)
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From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Subject: Re: [PATCH V3 00/29] bitops: add parity functions
Date: Sun, 17 Apr 2016 05:38:57 -0700
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Cc: linux-kernel@vger.kernel.org,
        Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>,
        adi-buildroot-devel@lists.sourceforge.net,
        Andrew Morton <akpm@linux-foundation.org>,
        Anton Blanchard <anton@samba.org>,
        Arnd Bergmann <arnd@arndb.de>,
        Benjamin Tissoires <benjamin.tissoires@redhat.com>,
        Borislav Petkov <bp@suse.de>,
        Bruce Allan <bruce.w.allan@intel.com>,
        Christophe Leroy <christophe.leroy@c-s.fr>,
        David Herrmann <dh.herrmann@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
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        Hartmut Knaack <knaack.h@gmx.de>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        Hendrik Brueckne
To: zengzhaoxiu@163.com
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On Thu, Apr 14, 2016 at 10:36:41AM +0800, zengzhaoxiu@163.com wrote:
>  drivers/input/joystick/grip_mp.c             |  16 +--
>  drivers/input/joystick/sidewinder.c          |  24 +----
>  drivers/input/mouse/elantech.c               |  10 +-
>  drivers/input/mouse/elantech.h               |   1 -
>  drivers/input/serio/ams_delta_serio.c        |   8 +-
>  drivers/input/serio/pcips2.c                 |   2 +-
>  drivers/input/serio/sa1111ps2.c              |   2 +-

For input bits:

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Thanks.

-- 
Dmitry



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God dag,

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God dag,

Dette er CENTRAL TRUST l=C3=A5n selskaper tilbyr l=C3=A5n.

Central Trust L=C3=85N Selskapet tilbyr fleksible og rimelige l=C3=A5n =
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nsielle m=C3=A5l. vi l=C3=A5n med lav rente p=C3=A5 1,5%. Her er noen v=
iktige trekk ved personlig l=C3=A5n fra sentral stoler p=C3=A5 utl=C3=A5=
n selskaper tilbys. Her er de L=C3=A5ne Faktorer vi samarbeider med de =
ledende britiske meglere som har tilgang til toppen l=C3=A5ngivere og v=
=C3=A6re i stand til =C3=A5 finne den beste =C3=B8konomiske l=C3=B8snin=
gen til en rimelig price.Please, hvis du er interessert kan du kontakte=
 oss via denne e-post: centraltrust_ltd@webadicta.org

Etter reaksjonen vil du motta en s=C3=B8knad om kreditt fyll. Ingen sos=
ial sikkerhet og ingen kredittsjekk, 100% garantert.
Det er en =C3=A6re for oss hvis du tillater oss til tjeneste.

informasjon Needed

Dine navn:
Adresse:
telefon:
M=C3=A5 Antall:
Varighet:
Okkupasjon:
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Status:
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M=C3=B8t dine =C3=B8konomiske behov er v=C3=A5r stolthet.

Vennlig hilsen
David Donald
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Hi, how are you? My name is J Eric Denials, External Financial Auditor =
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t this time through this medium. I have a cool and legitimate deal to d=
o with you as you're a foreigner, it will be mutually beneficial to bot=
h. If you=E2=80=99re interested, urgently, get back to me for more expl=
anation about the deal.
Regards
Eric
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.usb.general
Subject: [PATCH 0/2] Persistent scrollback buffers for all VGA consoles
Date: Mon, 18 Apr 2016 21:56:43 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:26651 gmane.linux.kernel:2202052 gmane.linux.usb.general:140578
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26651>

Another attempt to add persistent scrollback buffers for all VGA consol=
es,
so the buffer is not flushed when swithing back and forth between conso=
les.

Note that breaks tools like bash's clear_console and thus might have
security implications:
clear_console relies on this 'anti-feature' of the kernel to clear the =
buffer
when consoles are switched.

To offer a way for userland tools to flush the buffer my second patch a=
dds
a ioctl call for that.
Also this feature is disabled by default and security implications are =
clearly
stated in its documentation.

Manuel Sch=C3=B6lling (2):
  console: Add persistent scrollback buffers for all VGA consoles
  console: Add ioctl for flushing the scrollback buffer

 drivers/tty/vt/vt_ioctl.c               |  20 ++++
 drivers/usb/misc/sisusbvga/sisusb_con.c |   1 +
 drivers/video/console/Kconfig           |  22 +++-
 drivers/video/console/dummycon.c        |   1 +
 drivers/video/console/mdacon.c          |   6 +
 drivers/video/console/newport_con.c     |   1 +
 drivers/video/console/sticon.c          |   7 ++
 drivers/video/console/vgacon.c          | 195 ++++++++++++++++++++++--=
--------
 include/linux/console.h                 |   1 +
 include/uapi/linux/vt.h                 |   1 +
 10 files changed, 194 insertions(+), 61 deletions(-)

--=20
2.1.4

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From - Thu Nov 08 21:38:44 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.usb.general
Subject: [PATCH 0/2] Persistent scrollback buffers for all VGA consoles
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26652>

Another attempt to add persistent scrollback buffers for all VGA consol=
es,
so the buffer is not flushed when swithing back and forth between conso=
les.

Note that breaks tools like bash's clear_console and thus might have
security implications:
clear_console relies on this 'anti-feature' of the kernel to clear the =
buffer
when consoles are switched.

To offer a way for userland tools to flush the buffer my second patch a=
dds
a ioctl call for that.
Also this feature is disabled by default and security implications are =
clearly
stated in its documentation.

Manuel Sch=C3=B6lling (2):
  console: Add persistent scrollback buffers for all VGA consoles
  console: Add ioctl for flushing the scrollback buffer

 drivers/tty/vt/vt_ioctl.c               |  20 ++++
 drivers/usb/misc/sisusbvga/sisusb_con.c |   1 +
 drivers/video/console/Kconfig           |  22 +++-
 drivers/video/console/dummycon.c        |   1 +
 drivers/video/console/mdacon.c          |   6 +
 drivers/video/console/newport_con.c     |   1 +
 drivers/video/console/sticon.c          |   7 ++
 drivers/video/console/vgacon.c          | 195 ++++++++++++++++++++++--=
--------
 include/linux/console.h                 |   1 +
 include/uapi/linux/vt.h                 |   1 +
 10 files changed, 194 insertions(+), 61 deletions(-)

--=20
2.1.4

--
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From - Thu Nov 08 21:38:45 2018
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From: =?UTF-8?q?Manuel=20Sch=C3=B6lling?= <manuel.schoelling@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.usb.general
Subject: [PATCH 1/2] console: Add persistent scrollback buffers for all VGA consoles
Date: Mon, 18 Apr 2016 21:56:57 +0200
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Add a scrollback buffers for each VGA console. The benefit is that
the scrollback history is not flushed when switching between consoles
but is persistent.
The buffers are allocated on demand when a new console is opened.

This breaks tools like clear_console that rely on flushing the
scrollback history by switching back and forth between consoles
which is why this feature is disabled by default.

Signed-off-by: Manuel Sch=C3=B6lling <manuel.schoelling@gmx.de>
---
 drivers/video/console/Kconfig  |  22 +++++-
 drivers/video/console/vgacon.c | 172 +++++++++++++++++++++++++++------=
--------
 2 files changed, 133 insertions(+), 61 deletions(-)

diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kcon=
fig
index 38da6e2..f101a63 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -43,9 +43,25 @@ config VGACON_SOFT_SCROLLBACK_SIZE
        range 1 1024
        default "64"
        help
-         Enter the amount of System RAM to allocate for the scrollback
-	 buffer.  Each 64KB will give you approximately 16 80x25
-	 screenfuls of scrollback buffer
+	  Enter the amount of System RAM to allocate for scrollback
+	  buffers of VGA consoles. Each 64KB will give you approximately
+	  16 80x25 screenfuls of scrollback buffer.
+
+config VGACON_SOFT_SCROLLBACK_FOR_EACH_CONSOLE
+	bool "Persistent Scrollback History for each console"
+	depends on VGACON_SOFT_SCROLLBACK
+	default n
+	help
+	  Say Y here if for each VGA console a scrollback buffer should
+	  be allocated. The scrollback history will persist when switching
+	  between consoles. If you say N here, scrollback is only supported
+	  for the active VGA console and scrollback history will be flushed
+	  when switching between consoles.
+
+	  This breaks legacy versions of tools like clear_console which
+	  might raise security issues.
+
+	  If you use a RAM-constrained system, say N here.
=20
 config MDA_CONSOLE
 	depends on !M68K && !PARISC && ISA
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vga=
con.c
index 517f565..6c0b9ba 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -1,5 +1,5 @@
 /*
- *  linux/drivers/video/vgacon.c -- Low level VGA based console driver
+ *  linux/drivers/video/console/vgacon.c -- Low level VGA based consol=
e driver
  *
  *	Created 28 Sep 1997 by Geert Uytterhoeven
  *
@@ -106,12 +106,12 @@ static unsigned char	vga_hardscroll_enabled	__rea=
d_mostly;
 static unsigned char	vga_hardscroll_user_enable __read_mostly =3D 1;
 static unsigned char	vga_font_is_default =3D 1;
 static int		vga_vesa_blanked;
-static int 		vga_palette_blanked;
-static int 		vga_is_gfx;
-static int 		vga_512_chars;
-static int 		vga_video_font_height;
-static int 		vga_scan_lines		__read_mostly;
-static unsigned int 	vga_rolled_over;
+static int		vga_palette_blanked;
+static int		vga_is_gfx;
+static int		vga_512_chars;
+static int		vga_video_font_height;
+static int		vga_scan_lines		__read_mostly;
+static unsigned int	vga_rolled_over;
=20
 static int vgacon_text_mode_force;
=20
@@ -182,70 +182,125 @@ static inline void vga_set_mem_top(struct vc_dat=
a *c)
=20
 #ifdef CONFIG_VGACON_SOFT_SCROLLBACK
 /* software scrollback */
-static void *vgacon_scrollback;
-static int vgacon_scrollback_tail;
-static int vgacon_scrollback_size;
-static int vgacon_scrollback_rows;
-static int vgacon_scrollback_cnt;
-static int vgacon_scrollback_cur;
-static int vgacon_scrollback_save;
-static int vgacon_scrollback_restore;
-
-static void vgacon_scrollback_init(int pitch)
+struct vgacon_scrollback_info {
+	void *data;
+	int tail;
+	int size;
+	int rows;
+	int cnt;
+	int cur;
+	int save;
+	int restore;
+};
+static struct vgacon_scrollback_info *vgacon_scrollback_cur;
+#ifdef CONFIG_VGACON_SOFT_SCROLLBACK_FOR_EACH_CONSOLE
+static struct vgacon_scrollback_info vgacon_scrollbacks[MAX_NR_CONSOLE=
S];
+#else
+static struct vgacon_scrollback_info vgacon_scrollbacks[1];
+#endif
+
+static void vgacon_scrollback_reset(size_t reset_size)
 {
-	int rows =3D CONFIG_VGACON_SOFT_SCROLLBACK_SIZE * 1024/pitch;
-
-	if (vgacon_scrollback) {
-		vgacon_scrollback_cnt  =3D 0;
-		vgacon_scrollback_tail =3D 0;
-		vgacon_scrollback_cur  =3D 0;
-		vgacon_scrollback_rows =3D rows - 1;
-		vgacon_scrollback_size =3D rows * pitch;
+	if (vgacon_scrollback_cur->data && reset_size > 0)
+		memset(vgacon_scrollback_cur->data, 0, reset_size);
+
+	vgacon_scrollback_cur->cnt  =3D 0;
+	vgacon_scrollback_cur->tail =3D 0;
+	vgacon_scrollback_cur->cur  =3D 0;
+}
+
+static void vgacon_scrollback_init(int vc_num)
+{
+	int pitch =3D vga_video_num_columns * 2;
+	size_t size =3D CONFIG_VGACON_SOFT_SCROLLBACK_SIZE * 1024;
+	int rows =3D size/pitch;
+	void *data;
+
+	data =3D kcalloc(CONFIG_VGACON_SOFT_SCROLLBACK_SIZE, 1024, GFP_NOWAIT=
);
+	if (data) {
+		vgacon_scrollbacks[vc_num].data =3D data;
+		vgacon_scrollback_cur =3D &vgacon_scrollbacks[vc_num];
+
+		vgacon_scrollback_cur->rows =3D rows - 1;
+		vgacon_scrollback_cur->size =3D rows * pitch;
+
+		vgacon_scrollback_reset(0);
+	} else {
+		pr_warn("VGAcon: failed to allocate memory for scrollback. Trying to=
 reuse previous buffer.\n");
+		/* Leave vgacon_scrollback_cur untouched but reset its content */
+		vgacon_scrollback_reset(size);
 	}
 }
=20
+static void vgacon_switch_scrollback(int vc_num)
+{
+#ifdef CONFIG_VGACON_SOFT_SCROLLBACK_FOR_EACH_CONSOLE
+	if (!vgacon_scrollbacks[vc_num].data)
+		vgacon_scrollback_init(vc_num);
+	else
+		vgacon_scrollback_cur =3D &vgacon_scrollbacks[vc_num];
+#else
+	vc_num =3D 0;
+
+	if (!vgacon_scrollbacks[vc_num].data)
+		vgacon_scrollback_init(vc_num);
+	else {
+		size_t size =3D CONFIG_VGACON_SOFT_SCROLLBACK_SIZE * 1024;
+
+		vgacon_scrollback_reset(size);
+	}
+#endif
+}
+
 static void vgacon_scrollback_startup(void)
 {
-	vgacon_scrollback =3D kcalloc(CONFIG_VGACON_SOFT_SCROLLBACK_SIZE, 102=
4, GFP_NOWAIT);
-	vgacon_scrollback_init(vga_video_num_columns * 2);
+	int i;
+
+	for (i =3D 0; i < ARRAY_SIZE(vgacon_scrollbacks); ++i)
+		vgacon_scrollbacks[i].data =3D NULL;
+
+	vgacon_scrollback_cur =3D &vgacon_scrollbacks[0];
+	vgacon_scrollback_init(0);
 }
=20
 static void vgacon_scrollback_update(struct vc_data *c, int t, int cou=
nt)
 {
 	void *p;
=20
-	if (!vgacon_scrollback_size || c->vc_num !=3D fg_console)
+	if (!vgacon_scrollback_cur->data || !vgacon_scrollback_cur->size)
 		return;
=20
 	p =3D (void *) (c->vc_origin + t * c->vc_size_row);
=20
 	while (count--) {
-		scr_memcpyw(vgacon_scrollback + vgacon_scrollback_tail,
+		scr_memcpyw(vgacon_scrollback_cur->data +
+			    vgacon_scrollback_cur->tail,
 			    p, c->vc_size_row);
-		vgacon_scrollback_cnt++;
+
+		vgacon_scrollback_cur->cnt++;
 		p +=3D c->vc_size_row;
-		vgacon_scrollback_tail +=3D c->vc_size_row;
+		vgacon_scrollback_cur->tail +=3D c->vc_size_row;
=20
-		if (vgacon_scrollback_tail >=3D vgacon_scrollback_size)
-			vgacon_scrollback_tail =3D 0;
+		if (vgacon_scrollback_cur->tail >=3D vgacon_scrollback_cur->size)
+			vgacon_scrollback_cur->tail =3D 0;
=20
-		if (vgacon_scrollback_cnt > vgacon_scrollback_rows)
-			vgacon_scrollback_cnt =3D vgacon_scrollback_rows;
+		if (vgacon_scrollback_cur->cnt > vgacon_scrollback_cur->rows)
+			vgacon_scrollback_cur->cnt =3D vgacon_scrollback_cur->rows;
=20
-		vgacon_scrollback_cur =3D vgacon_scrollback_cnt;
+		vgacon_scrollback_cur->cur =3D vgacon_scrollback_cur->cnt;
 	}
 }
=20
 static void vgacon_restore_screen(struct vc_data *c)
 {
-	vgacon_scrollback_save =3D 0;
+	vgacon_scrollback_cur->save =3D 0;
=20
-	if (!vga_is_gfx && !vgacon_scrollback_restore) {
+	if (!vga_is_gfx && !vgacon_scrollback_cur->restore) {
 		scr_memcpyw((u16 *) c->vc_origin, (u16 *) c->vc_screenbuf,
 			    c->vc_screenbuf_size > vga_vram_size ?
 			    vga_vram_size : c->vc_screenbuf_size);
-		vgacon_scrollback_restore =3D 1;
-		vgacon_scrollback_cur =3D vgacon_scrollback_cnt;
+		vgacon_scrollback_cur->restore =3D 1;
+		vgacon_scrollback_cur->cur =3D vgacon_scrollback_cur->cnt;
 	}
 }
=20
@@ -259,41 +314,41 @@ static int vgacon_scrolldelta(struct vc_data *c, =
int lines)
 		return 1;
 	}
=20
-	if (!vgacon_scrollback)
+	if (!vgacon_scrollback_cur->data)
 		return 1;
=20
-	if (!vgacon_scrollback_save) {
+	if (!vgacon_scrollback_cur->save) {
 		vgacon_cursor(c, CM_ERASE);
 		vgacon_save_screen(c);
-		vgacon_scrollback_save =3D 1;
+		vgacon_scrollback_cur->save =3D 1;
 	}
=20
-	vgacon_scrollback_restore =3D 0;
-	start =3D vgacon_scrollback_cur + lines;
+	vgacon_scrollback_cur->restore =3D 0;
+	start =3D vgacon_scrollback_cur->cur + lines;
 	end =3D start + abs(lines);
=20
 	if (start < 0)
 		start =3D 0;
=20
-	if (start > vgacon_scrollback_cnt)
-		start =3D vgacon_scrollback_cnt;
+	if (start > vgacon_scrollback_cur->cnt)
+		start =3D vgacon_scrollback_cur->cnt;
=20
 	if (end < 0)
 		end =3D 0;
=20
-	if (end > vgacon_scrollback_cnt)
-		end =3D vgacon_scrollback_cnt;
+	if (end > vgacon_scrollback_cur->cnt)
+		end =3D vgacon_scrollback_cur->cnt;
=20
-	vgacon_scrollback_cur =3D start;
+	vgacon_scrollback_cur->cur =3D start;
 	count =3D end - start;
-	soff =3D vgacon_scrollback_tail - ((vgacon_scrollback_cnt - end) *
-					 c->vc_size_row);
+	soff =3D vgacon_scrollback_cur->tail;
+	soff -=3D ((vgacon_scrollback_cur->cnt - end) * c->vc_size_row);
 	soff -=3D count * c->vc_size_row;
=20
 	if (soff < 0)
-		soff +=3D vgacon_scrollback_size;
+		soff +=3D vgacon_scrollback_cur->size;
=20
-	count =3D vgacon_scrollback_cnt - start;
+	count =3D vgacon_scrollback_cur->cnt - start;
=20
 	if (count > c->vc_rows)
 		count =3D c->vc_rows;
@@ -307,13 +362,13 @@ static int vgacon_scrolldelta(struct vc_data *c, =
int lines)
=20
 		count *=3D c->vc_size_row;
 		/* how much memory to end of buffer left? */
-		copysize =3D min(count, vgacon_scrollback_size - soff);
-		scr_memcpyw(d, vgacon_scrollback + soff, copysize);
+		copysize =3D min(count, vgacon_scrollback_cur->size - soff);
+		scr_memcpyw(d, vgacon_scrollback_cur->data + soff, copysize);
 		d +=3D copysize;
 		count -=3D copysize;
=20
 		if (count) {
-			scr_memcpyw(d, vgacon_scrollback, count);
+			scr_memcpyw(d, vgacon_scrollback_cur->data, count);
 			d +=3D count;
 		}
=20
@@ -328,6 +383,7 @@ static int vgacon_scrolldelta(struct vc_data *c, in=
t lines)
 #define vgacon_scrollback_startup(...) do { } while (0)
 #define vgacon_scrollback_init(...)    do { } while (0)
 #define vgacon_scrollback_update(...)  do { } while (0)
+#define vgacon_switch_scrollback(...)  do { } while (0)
=20
 static void vgacon_restore_screen(struct vc_data *c)
 {
@@ -843,7 +899,7 @@ static int vgacon_switch(struct vc_data *c)
 			vgacon_doresize(c, c->vc_cols, c->vc_rows);
 	}
=20
-	vgacon_scrollback_init(c->vc_size_row);
+	vgacon_switch_scrollback(c->vc_num);
 	return 0;		/* Redrawing not needed */
 }
=20
--=20
2.1.4

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Subject: [PATCH 2/2] console: Add ioctl for flushing the scrollback buffer
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Tools like clear_console rely on the fact that scrollback history is
flushed when switching back and forth between consoles.
Persistent scrollback buffers for each console breaks this, so this
patch adds a ioctl() callf for flushing the scrollback history.

Signed-off-by: Manuel Sch=C3=B6lling <manuel.schoelling@gmx.de>
---
 drivers/tty/vt/vt_ioctl.c               | 20 ++++++++++++++++++++
 drivers/usb/misc/sisusbvga/sisusb_con.c |  1 +
 drivers/video/console/dummycon.c        |  1 +
 drivers/video/console/mdacon.c          |  6 ++++++
 drivers/video/console/newport_con.c     |  1 +
 drivers/video/console/sticon.c          |  7 +++++++
 drivers/video/console/vgacon.c          | 23 +++++++++++++++++++++++
 include/linux/console.h                 |  1 +
 include/uapi/linux/vt.h                 |  1 +
 9 files changed, 61 insertions(+)

diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 97d5a74..18adc23 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -903,6 +903,26 @@ int vt_ioctl(struct tty_struct *tty,
 		break;
 	}
=20
+	/*
+	 * flush the specified VT's scollback buffer
+	 */
+	case VT_FLUSH_SCROLLBACK: {
+		if (!perm)
+			return -EPERM;
+		if (arg =3D=3D 0 || arg > MAX_NR_CONSOLES)
+			ret =3D -ENXIO;
+		else {
+			struct vc_data *data =3D vc_cons[arg-1].d;
+
+			if (!data)
+				ret =3D -ENXIO;
+			else
+				ret =3D data->vc_sw->con_flush_scrollback(data);
+		}
+
+		break;
+	}
+
 	case PIO_FONT: {
 		if (!perm)
 			return -EPERM;
diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc=
/sisusbvga/sisusb_con.c
index ace3430..cc5fc10 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -1442,6 +1442,7 @@ static const struct consw sisusb_dummy_con =3D {
 	.con_font_copy =3D	SISUSBCONDUMMY,
 	.con_set_palette =3D	SISUSBCONDUMMY,
 	.con_scrolldelta =3D	SISUSBCONDUMMY,
+	.con_flush_scrollback =3D SISUSBCONDUMMY,
 };
=20
 int
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/d=
ummycon.c
index 0efc52f..d2888e5 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -73,5 +73,6 @@ const struct consw dummy_con =3D {
     .con_font_copy =3D	DUMMY,
     .con_set_palette =3D	DUMMY,
     .con_scrolldelta =3D	DUMMY,
+    .con_flush_scrollback =3D DUMMY,
 };
 EXPORT_SYMBOL_GPL(dummy_con);
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mda=
con.c
index 296e945..10ebcbe 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -510,6 +510,11 @@ static int mdacon_scrolldelta(struct vc_data *c, i=
nt lines)
 	return 0;
 }
=20
+static int mdacon_flush_scrollback(struct vc_data *c)
+{
+	return 0;
+}
+
 static void mdacon_cursor(struct vc_data *c, int mode)
 {
 	if (mode =3D=3D CM_ERASE) {
@@ -579,6 +584,7 @@ static const struct consw mda_con =3D {
 	.con_blank =3D		mdacon_blank,
 	.con_set_palette =3D	mdacon_set_palette,
 	.con_scrolldelta =3D	mdacon_scrolldelta,
+	.con_flush_scrollback =3D	mdacon_flush_scrollback,
 	.con_build_attr =3D	mdacon_build_attr,
 	.con_invert_region =3D	mdacon_invert_region,
 };
diff --git a/drivers/video/console/newport_con.c b/drivers/video/consol=
e/newport_con.c
index bb4e962..d04183c 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -738,6 +738,7 @@ const struct consw newport_con =3D {
 	.con_scrolldelta  =3D newport_scrolldelta,
 	.con_set_origin	  =3D DUMMY,
 	.con_save_screen  =3D DUMMY
+	.con_flush_scrollback =3D DUMMY,
 };
=20
 static int newport_probe(struct gio_device *dev,
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sti=
con.c
index 026fd12..46046d6 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -345,6 +345,12 @@ static void sticon_save_screen(struct vc_data *con=
p)
 {
 }
=20
+static int sticon_flush_scrollback(struct vc_data *c)
+{
+	return 0;
+}
+
+
 static const struct consw sti_con =3D {
 	.owner			=3D THIS_MODULE,
 	.con_startup		=3D sticon_startup,
@@ -360,6 +366,7 @@ static const struct consw sti_con =3D {
 	.con_blank		=3D sticon_blank,
 	.con_set_palette	=3D sticon_set_palette,
 	.con_scrolldelta	=3D sticon_scrolldelta,
+	.con_flush_scrollback	=3D sticon_flush_scrollback,
 	.con_set_origin		=3D sticon_set_origin,
 	.con_save_screen	=3D sticon_save_screen,=20
 	.con_build_attr		=3D sticon_build_attr,
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vga=
con.c
index 6c0b9ba..b5ea94f 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -379,12 +379,34 @@ static int vgacon_scrolldelta(struct vc_data *c, =
int lines)
=20
 	return 1;
 }
+
+/* flush the scrollback buffer of a console */
+static int vgacon_flush_scrollback(struct vc_data *c)
+{
+	size_t size =3D CONFIG_VGACON_SOFT_SCROLLBACK_SIZE * 1024;
+	struct vgacon_scrollback_info *vgacon_scrollback_prev;
+
+	vgacon_scrollback_prev =3D vgacon_scrollback_cur;
+	vgacon_scrollback_cur =3D &vgacon_scrollbacks[c->vc_num];
+
+	if (vgacon_scrollback_cur !=3D NULL)
+		vgacon_scrollback_reset(size);
+
+	vgacon_scrollback_cur =3D vgacon_scrollback_prev;
+
+	return 0;
+}
 #else
 #define vgacon_scrollback_startup(...) do { } while (0)
 #define vgacon_scrollback_init(...)    do { } while (0)
 #define vgacon_scrollback_update(...)  do { } while (0)
 #define vgacon_switch_scrollback(...)  do { } while (0)
=20
+static int vgacon_flush_scrollback(struct vc_data *c)
+{
+	return 0;
+}
+
 static void vgacon_restore_screen(struct vc_data *c)
 {
 	if (c->vc_origin !=3D c->vc_visible_origin)
@@ -1492,6 +1514,7 @@ const struct consw vga_con =3D {
 	.con_resize =3D vgacon_resize,
 	.con_set_palette =3D vgacon_set_palette,
 	.con_scrolldelta =3D vgacon_scrolldelta,
+	.con_flush_scrollback =3D vgacon_flush_scrollback,
 	.con_set_origin =3D vgacon_set_origin,
 	.con_save_screen =3D vgacon_save_screen,
 	.con_build_attr =3D vgacon_build_attr,
diff --git a/include/linux/console.h b/include/linux/console.h
index e49cc1e..946ff20 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -49,6 +49,7 @@ struct consw {
 			       unsigned int);
 	int	(*con_set_palette)(struct vc_data *, unsigned char *);
 	int	(*con_scrolldelta)(struct vc_data *, int);
+	int	(*con_flush_scrollback)(struct vc_data *);
 	int	(*con_set_origin)(struct vc_data *);
 	void	(*con_save_screen)(struct vc_data *);
 	u8	(*con_build_attr)(struct vc_data *, u8, u8, u8, u8, u8, u8);
diff --git a/include/uapi/linux/vt.h b/include/uapi/linux/vt.h
index 978578b..b799541 100644
--- a/include/uapi/linux/vt.h
+++ b/include/uapi/linux/vt.h
@@ -83,5 +83,6 @@ struct vt_setactivate {
 };
=20
 #define VT_SETACTIVATE	0x560F	/* Activate and set the mode of a consol=
e */
+#define VT_FLUSH_SCROLLBACK	0x5610	/* Flush the scrollback buffer */
=20
 #endif /* _UAPI_LINUX_VT_H */
--=20
2.1.4



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Subject: Re: [PATCH 2/2] console: Add ioctl for flushing the scrollback buffer
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--5vNYLRcllDrimb99
Content-Type: text/plain; charset=us-ascii
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Hi Manuel,

[auto build test ERROR on usb/usb-testing]
[also build test ERROR on v4.6-rc4 next-20160418]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Manuel-Sch-lling/Persistent-scrollback-buffers-for-all-VGA-consoles/20160419-040228
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
config: mips-allyesconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=mips 

All errors (new ones prefixed by >>):

>> drivers/video/console/newport_con.c:741:2: error: request for member 'con_flush_scrollback' in something not a structure or union
     .con_flush_scrollback = DUMMY,
     ^

vim +/con_flush_scrollback +741 drivers/video/console/newport_con.c

   735		.con_font_set	  = newport_font_set,
   736		.con_font_default = newport_font_default,
   737		.con_set_palette  = newport_set_palette,
   738		.con_scrolldelta  = newport_scrolldelta,
   739		.con_set_origin	  = DUMMY,
   740		.con_save_screen  = DUMMY
 > 741		.con_flush_scrollback = DUMMY,
   742	};
   743	
   744	static int newport_probe(struct gio_device *dev,

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Hi, how are you? My name is J Eric Denials, External Financial Auditor =
at Lloyds Banking Group plc., London. It is a pleasure to contact you a=
t this time through this medium. I have a cool and legitimate deal to d=
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* Manuel Sch=F6lling <manuel.schoelling-Mmb7MZpHnFY@public.gmane.org>, 2016-04-18, 21:56:
>To offer a way for userland tools to flush the buffer my second patch=20
>adds a ioctl call for that.

In f8df13e0a901fe55631fed66562369b4dba40f8b, the escape sequence \e[3J=20
was added, which erases the whole display including the scroll-back=20
buffer. So the new ioctl shouldn't be necessary.

--=20
Jakub Wilk
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On Friday, April 15, 2016 05:09:41 PM Helge Deller wrote:
> Print a message if a regression test was skipped just because valgrind isn't
> installed.
> 
> This additional info is useful for architectures (e.g. parisc) which aren't
> as fast as x86_64. On parisc it seemed that the whole testcase was hanging,
> now people know what's actually happening.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>

Merged, thanks!

> diff --git a/tests/regression b/tests/regression
> index 53d26b2..5949459 100755
> --- a/tests/regression
> +++ b/tests/regression
> @@ -772,6 +773,7 @@ function run_test() {
>  		if check_deps valgrind; then
>  			run_test_bpf_valgrind "$testnumstr" "$3"
>  		else
> +			print_result $testnumstr "SKIPPED" "(valgrind not installed)"
>  			stats_skipped=$(($stats_skipped+1))
>  		fi
>  	elif [[ "$4" == "live" ]]; then

-- 
paul moore
www.paul-moore.com

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On Tue, Apr 19, 2016 at 8:53 AM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:
> Below is the list of build error/warning regressions/improvements in
> v4.6-rc4[1] compared to v4.5[2].
>
> Summarized:
>   - build errors: +11/-7
>   - build warnings: +16376/-165

Sorry for the delay, initially I didn't realize why my first report didn't make
it to the list. It was too big, due to 16211 warnings in parisc-allmodconfig
about "-ffunction-sections disabled; it makes profiling impossible [enabled by
default]".

> JFYI, when comparing v4.6-rc4[1] to v4.6-rc3[3], the summaries are:
>   - build errors: +9/-9

  + /home/kisskb/slave/src/arch/powerpc/kernel/pci_dn.c: error:
'struct pci_dn' has no member named 'edev':  => 272:8
  + /home/kisskb/slave/src/arch/powerpc/kernel/pci_dn.c: error:
dereferencing pointer to incomplete type:  => 215:7
  + /home/kisskb/slave/src/arch/powerpc/kernel/pci_dn.c: error:
implicit declaration of function 'eeh_dev_init'
[-Werror=implicit-function-declaration]:  => 212:3

powerpc-randconfig

  + /home/kisskb/slave/src/drivers/thermal/mtk_thermal.c: error:
implicit declaration of function 'device_reset'
[-Werror=implicit-function-declaration]:  => 560:2

x86_64-randconfig (patch available)

> [1] http://kisskb.ellerman.id.au/kisskb/head/10194/ (all 262 configs)
> [3] http://kisskb.ellerman.id.au/kisskb/head/10162/ (all 262 configs)

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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Hi Geert,

On 19.04.2016 08:57, Geert Uytterhoeven wrote:
> On Tue, Apr 19, 2016 at 8:53 AM, Geert Uytterhoeven
> <geert@linux-m68k.org> wrote:
>> Below is the list of build error/warning regressions/improvements in
>> v4.6-rc4[1] compared to v4.5[2].
>>
>> Summarized:
>>   - build errors: +11/-7
>>   - build warnings: +16376/-165 <tel:+16376165>
> 
> Sorry for the delay, initially I didn't realize why my first report didn't make
> it to the list. It was too big, due to 16211 warnings in parisc-allmodconfig
> about "-ffunction-sections disabled; it makes profiling impossible [enabled by
> default]".

I checked the parisc warnings, and looking at http://kisskb.ellerman.id.au/kisskb/buildresult/12665382/
it seems a gcc-4.6 (/opt/cross/gcc-4.6.3-nolibc/hppa-linux/bin/hppa-linux-gcc) compiler
is still being used.
I tend to think, that gcc-4.6 wasn't able to generate function sections
which is why we see those warnings now (there was a FTRACE patch from me 
included before v4.6-rc4). 
Anyway, I can't reproduce those warnings with gcc-4.8 and higher.
Given the fact, that we even switched on debian now to use gcc-5 for the kernel, can
someone please update the 32- and 64-bit parisc compilers on the kiss
infrastructure to at least gcc-4.8 (gcc-4.9 or gcc-5 being preferred).

Thanks,
Helge
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From - Thu Nov 08 21:38:45 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Add native high-resolution sched_clock()
 implementation
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Add a native implementation for the sched_clock() function which utilizes the
processor-internal cycle counter (Control Register 16) as high-resolution time
source.

With this patch we now get much more fine-grained resolutions in various
in-kernel time measurements (e.g. when viewing the function tracing logs), and
probably a more accurate scheduling on SMP systems.

There are a few specific implementation details in this patch:

1. On a 32bit kernel we emulate the higher 32bits of the required 64-bit
resolution of sched_clock() by increasing a per-cpu counter at every
wrap-around of the 32bit cycle counter.

2. In a SMP system, the cycle counters of the various CPUs are not syncronized
(similiar to the TSC in a x86_64 system). To cope with this we define
HAVE_UNSTABLE_SCHED_CLOCK and let the upper layers do the adjustment work.

3. Since we need HAVE_UNSTABLE_SCHED_CLOCK, we need to provide a cmpxchg64()
function even on a 32-bit kernel.

4. A 64-bit SMP kernel which is started on a UP system will mark the
sched_clock() implementation as "stable", which means that we don't expect any
jumps in the returned counter. This is true because we then run only on one
CPU.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index bf05fc4..766da06 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -33,6 +33,7 @@ config PARISC
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_ARCH_SECCOMP_FILTER
 	select HAVE_ARCH_TRACEHOOK
+	select HAVE_UNSTABLE_SCHED_CLOCK if (SMP || !64BIT)
 	select ARCH_NO_COHERENT_DMA_MMAP
 
 	help
diff --git a/arch/parisc/include/asm/cmpxchg.h b/arch/parisc/include/asm/cmpxchg.h
index 0a90b96..7ada309 100644
--- a/arch/parisc/include/asm/cmpxchg.h
+++ b/arch/parisc/include/asm/cmpxchg.h
@@ -52,8 +52,7 @@ extern void __cmpxchg_called_with_bad_pointer(void);
 /* __cmpxchg_u32/u64 defined in arch/parisc/lib/bitops.c */
 extern unsigned long __cmpxchg_u32(volatile unsigned int *m, unsigned int old,
 				   unsigned int new_);
-extern unsigned long __cmpxchg_u64(volatile unsigned long *ptr,
-				   unsigned long old, unsigned long new_);
+extern u64 __cmpxchg_u64(volatile u64 *ptr, u64 old, u64 new_);
 
 /* don't worry...optimizer will get rid of most of this */
 static inline unsigned long
@@ -61,7 +60,7 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new_, int size)
 {
 	switch (size) {
 #ifdef CONFIG_64BIT
-	case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_);
+	case 8: return __cmpxchg_u64((u64 *)ptr, old, new_);
 #endif
 	case 4: return __cmpxchg_u32((unsigned int *)ptr,
 				     (unsigned int)old, (unsigned int)new_);
@@ -86,7 +85,7 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
 {
 	switch (size) {
 #ifdef CONFIG_64BIT
-	case 8:	return __cmpxchg_u64((unsigned long *)ptr, old, new_);
+	case 8:	return __cmpxchg_u64((u64 *)ptr, old, new_);
 #endif
 	case 4:	return __cmpxchg_u32(ptr, old, new_);
 	default:
@@ -111,4 +110,6 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
 #define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
 #endif
 
+#define cmpxchg64(ptr, o, n) __cmpxchg_u64(ptr, o, n)
+
 #endif /* _ASM_PARISC_CMPXCHG_H_ */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 400acac0..368ca2b 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -38,6 +34,18 @@
 
 static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
 
+#ifndef CONFIG_64BIT
+/*
+ * The processor-internal cycle counter (Control Register 16) is used as time
+ * source for the sched_clock() function.  This register is 64bit wide on a
+ * 64-bit kernel and 32bit on a 32-bit kernel. Since sched_clock() always
+ * requires a 64bit counter we emulate on the 32-bit kernel the higher 32bits
+ * with a per-cpu variable which we increase every time the counter
+ * wraps-around (which happens every ~4 secounds).
+ */
+static DEFINE_PER_CPU(unsigned long, cr16_high_32_bits);
+#endif
+
 /*
  * We keep time on PA-RISC Linux by using the Interval Timer which is
  * a pair of registers; one is read-only and one is write-only; both
@@ -108,6 +116,12 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 	 */
 	mtctl(next_tick, 16);
 
+#if !defined(CONFIG_64BIT)
+	/* check for overflow on a 32bit kernel (every ~4 seconds). */
+	if (unlikely(next_tick < now))
+		this_cpu_inc(cr16_high_32_bits);
+#endif
+
 	/* Skip one clocktick on purpose if we missed next_tick.
 	 * The new CR16 must be "later" than current CR16 otherwise
 	 * itimer would not fire until CR16 wrapped - e.g 4 seconds
@@ -219,6 +233,12 @@ void __init start_cpu_itimer(void)
 	unsigned int cpu = smp_processor_id();
 	unsigned long next_tick = mfctl(16) + clocktick;
 
+#if defined(CONFIG_HAVE_UNSTABLE_SCHED_CLOCK) && defined(CONFIG_64BIT)
+	/* With multiple 64bit CPUs online, the cr16's are not syncronized. */
+	if (cpu != 0)
+		clear_sched_clock_stable();
+#endif
+
 	mtctl(next_tick, 16);		/* kick off Interval Timer (CR16) */
 
 	per_cpu(cpu_data, cpu).it_value = next_tick;
@@ -246,15 +266,52 @@ void read_persistent_clock(struct timespec *ts)
 	}
 }
 
+
+/*
+ * sched_clock() framework
+ */
+
+static u32 cyc2ns_mul __read_mostly;
+static u32 cyc2ns_shift __read_mostly;
+
+u64 sched_clock(void)
+{
+	u64 now;
+
+	/* Get current cycle counter (Control Register 16). */
+#ifdef CONFIG_64BIT
+	now = mfctl(16);
+#else
+	now = mfctl(16) + (((u64) this_cpu_read(cr16_high_32_bits)) << 32);
+#endif
+
+	/* return the value in ns (cycles_2_ns) */
+	return mul_u64_u32_shr(now, cyc2ns_mul, cyc2ns_shift);
+}
+
+
+/*
+ * timer interrupt and sched_clock() initialization
+ */
+
 void __init time_init(void)
 {
 	unsigned long current_cr16_khz;
 
+	current_cr16_khz = PAGE0->mem_10msec/10;  /* kHz */
 	clocktick = (100 * PAGE0->mem_10msec) / HZ;
 
+	/* calculate mult/shift values for cr16 */
+	clocks_calc_mult_shift(&cyc2ns_mul, &cyc2ns_shift, current_cr16_khz,
+				NSEC_PER_MSEC, 0);
+
+#if defined(CONFIG_HAVE_UNSTABLE_SCHED_CLOCK) && defined(CONFIG_64BIT)
+	/* At bootup only one 64bit CPU is online and cr16 is "stable" */
+	set_sched_clock_stable();
+#endif
+
 	start_cpu_itimer();	/* get CPU 0 started */
 
 	/* register at clocksource framework */
-	current_cr16_khz = PAGE0->mem_10msec/10;  /* kHz */
 	clocksource_register_khz(&clocksource_cr16, current_cr16_khz);
 }
diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c
index 1871188..8e45b0a 100644
--- a/arch/parisc/lib/bitops.c
+++ b/arch/parisc/lib/bitops.c
@@ -55,11 +55,10 @@ unsigned long __xchg8(char x, char *ptr)
 }
 
 
-#ifdef CONFIG_64BIT
-unsigned long __cmpxchg_u64(volatile unsigned long *ptr, unsigned long old, unsigned long new)
+u64 __cmpxchg_u64(volatile u64 *ptr, u64 old, u64 new)
 {
 	unsigned long flags;
-	unsigned long prev;
+	u64 prev;
 
 	_atomic_spin_lock_irqsave(ptr, flags);
 	if ((prev = *ptr) == old)
@@ -67,7 +66,6 @@ unsigned long __cmpxchg_u64(volatile unsigned long *ptr, unsigned long old, unsi
 	_atomic_spin_unlock_irqrestore(ptr, flags);
 	return prev;
 }
-#endif
 
 unsigned long __cmpxchg_u32(volatile unsigned int *ptr, unsigned int old, unsigned int new)
 {
--
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From - Thu Nov 08 21:38:45 2018
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X-Mozilla-Keys:                                                                                 
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From: Florian Westphal <fw@strlen.de>
Newsgroups: gmane.linux.kernel,gmane.linux.network,gmane.linux.ports.parisc,gmane.linux.hams
Subject: [PATCH net-next 4/6] drivers: net: use NETDEV_TX_OK instead of NETDEV_TX_LOCKED
Date: Sun, 24 Apr 2016 21:38:12 +0200
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Approved: news@gmane.org
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Cc: linux-kernel@vger.kernel.org, Florian Westphal <fw@strlen.de>,
	linux-parisc@vger.kernel.org, linux-hams@vger.kernel.org,
	Thomas Sailer <t.sailer@alumni.ethz.ch>
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These drivers already call netif_stop_queue() so we should not be called
unless tx space is available.  Just free the skb and return TX_OK.

Followup patch will remove NETDEV_TX_LOCKED from the kernel.

Cc: linux-parisc@vger.kernel.org
Cc: linux-hams@vger.kernel.org
Cc: Thomas Sailer <t.sailer@alumni.ethz.ch>
Signed-off-by: Florian Westphal <fw@strlen.de>
---
 checkpatch chokes on this one, tulip uses spaces, not tabs...

 drivers/net/ethernet/amd/7990.c        | 8 +++++---
 drivers/net/ethernet/amd/a2065.c       | 7 +++----
 drivers/net/ethernet/dec/tulip/de4x5.c | 7 +++++--
 drivers/net/hamradio/baycom_epp.c      | 6 ++++--
 drivers/net/hamradio/hdlcdrv.c         | 6 ++++--
 5 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/amd/7990.c b/drivers/net/ethernet/amd/7990.c
index 66d0b73c..8e75755 100644
--- a/drivers/net/ethernet/amd/7990.c
+++ b/drivers/net/ethernet/amd/7990.c
@@ -543,11 +543,13 @@ int lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	static int outs;
 	unsigned long flags;
 
-	if (!TX_BUFFS_AVAIL)
-		return NETDEV_TX_LOCKED;
-
 	netif_stop_queue(dev);
 
+	if (!TX_BUFFS_AVAIL) {
+		dev_consume_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
 	skblen = skb->len;
 
 #ifdef DEBUG_DRIVER
diff --git a/drivers/net/ethernet/amd/a2065.c b/drivers/net/ethernet/amd/a2065.c
index 5613918..2a18d34 100644
--- a/drivers/net/ethernet/amd/a2065.c
+++ b/drivers/net/ethernet/amd/a2065.c
@@ -547,10 +547,8 @@ static netdev_tx_t lance_start_xmit(struct sk_buff *skb,
 
 	local_irq_save(flags);
 
-	if (!lance_tx_buffs_avail(lp)) {
-		local_irq_restore(flags);
-		return NETDEV_TX_LOCKED;
-	}
+	if (!lance_tx_buffs_avail(lp))
+		goto out_free;
 
 #ifdef DEBUG
 	/* dump the packet */
@@ -573,6 +571,7 @@ static netdev_tx_t lance_start_xmit(struct sk_buff *skb,
 
 	/* Kick the lance: transmit now */
 	ll->rdp = LE_C0_INEA | LE_C0_TDMD;
+ out_free:
 	dev_kfree_skb(skb);
 
 	local_irq_restore(flags);
diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index 3acde3b..d88fbab 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -1465,7 +1465,7 @@ de4x5_queue_pkt(struct sk_buff *skb, struct net_device *dev)
 
     netif_stop_queue(dev);
     if (!lp->tx_enable)                   /* Cannot send for now */
-	return NETDEV_TX_LOCKED;
+		goto tx_err;
 
     /*
     ** Clean out the TX ring asynchronously to interrupts - sometimes the
@@ -1478,7 +1478,7 @@ de4x5_queue_pkt(struct sk_buff *skb, struct net_device *dev)
 
     /* Test if cache is already locked - requeue skb if so */
     if (test_and_set_bit(0, (void *)&lp->cache.lock) && !lp->interrupt)
-	return NETDEV_TX_LOCKED;
+		goto tx_err;
 
     /* Transmit descriptor ring full or stale skb */
     if (netif_queue_stopped(dev) || (u_long) lp->tx_skb[lp->tx_new] > 1) {
@@ -1519,6 +1519,9 @@ de4x5_queue_pkt(struct sk_buff *skb, struct net_device *dev)
     lp->cache.lock = 0;
 
     return NETDEV_TX_OK;
+tx_err:
+	dev_kfree_skb_any(skb);
+	return NETDEV_TX_OK;
 }
 
 /*
diff --git a/drivers/net/hamradio/baycom_epp.c b/drivers/net/hamradio/baycom_epp.c
index 72c9f1f..eb66638 100644
--- a/drivers/net/hamradio/baycom_epp.c
+++ b/drivers/net/hamradio/baycom_epp.c
@@ -780,8 +780,10 @@ static int baycom_send_packet(struct sk_buff *skb, struct net_device *dev)
 		dev_kfree_skb(skb);
 		return NETDEV_TX_OK;
 	}
-	if (bc->skb)
-		return NETDEV_TX_LOCKED;
+	if (bc->skb) {
+		dev_kfree_skb(skb);
+		return NETDEV_TX_OK;
+	}
 	/* strip KISS byte */
 	if (skb->len >= HDLCDRV_MAXFLEN+1 || skb->len < 3) {
 		dev_kfree_skb(skb);
diff --git a/drivers/net/hamradio/hdlcdrv.c b/drivers/net/hamradio/hdlcdrv.c
index 49fe59b..4bad0b8 100644
--- a/drivers/net/hamradio/hdlcdrv.c
+++ b/drivers/net/hamradio/hdlcdrv.c
@@ -412,8 +412,10 @@ static netdev_tx_t hdlcdrv_send_packet(struct sk_buff *skb,
 		dev_kfree_skb(skb);
 		return NETDEV_TX_OK;
 	}
-	if (sm->skb)
-		return NETDEV_TX_LOCKED;
+	if (sm->skb) {
+		dev_kfree_skb(skb);
+		return NETDEV_TX_OK;
+	}
 	netif_stop_queue(dev);
 	sm->skb = skb;
 	return NETDEV_TX_OK;
-- 
2.7.3



From - Thu Nov 08 21:38:45 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: [PATCH 7/8] char/genrtc: disallow building on Alpha
Date: Tue, 26 Apr 2016 23:44:11 +0200
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Approved: news@gmane.org
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To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/31692>

The genrtc driver serves no purpose on Alpha because it drives the
same hardware as the original rtc.c driver, and the newer rtc-generic.c
or rtc-cmos.c drivers on architectures that use the asm-generic/rtc.h
header.

The defconfig uses CONFIG_RTC=y, so this driver is not used by default.
At one point it was used to abstract a quirk for the "Marvel" platform,
but it does not do this any more after the code was moved into yet
another driver in arch/alpha/kernel/rtc.c.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/char/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 9bdb629fbaae..697510325b1d 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on ALPHA || M68K || MN10300 || PARISC || PPC
+	depends on M68K || MN10300 || PARISC || PPC
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
-- 
2.7.0


From - Thu Nov 08 21:38:45 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH 1/8] char/rtc: replace blacklist with whitelist
Date: Tue, 26 Apr 2016 23:44:05 +0200
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Cc: Arnd Bergmann <arnd@arndb.de>, tony.luck@intel.com,
	geert@linux-m68k.org, jejb@parisc-linux.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, yasutake.koichi@jp.panasonic.com,
	rth@twiddle.net, ink@jurassic.park.msu.ru,
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	linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/53820>

Every new architecture has to add itself to the growing list of those
that do not support the legacy PC RTC driver.

This replaces the long list of architectures that don't support it
with a shorter list of those that do.

The list is taken from those architectures that have a non-empty
asm/mc146818rtc.h header file and were not explicitly blacklisted.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/char/Kconfig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 3ec0766ed5e9..66b5d48f409a 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -279,8 +279,7 @@ if RTC_LIB=n
 
 config RTC
 	tristate "Enhanced Real Time Clock Support (legacy PC RTC driver)"
-	depends on !PPC && !PARISC && !IA64 && !M68K && !SPARC && !FRV \
-			&& !ARM && !SUPERH && !S390 && !AVR32 && !BLACKFIN && !UML
+	depends on ALPHA || (MIPS && MACH_LOONGSON64) || MN10300 || X86
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
-- 
2.7.0

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From - Thu Nov 08 21:38:46 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH 3/8] char/rtc: remove empty asm/mc146818rtc.h files
Date: Tue, 26 Apr 2016 23:44:07 +0200
Lines: 109
Approved: news@gmane.org
Message-ID: <1461707052-1337718-4-git-send-email-arnd@arndb.de>
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Cc: Arnd Bergmann <arnd@arndb.de>, tony.luck@intel.com,
	geert@linux-m68k.org, jejb@parisc-linux.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, yasutake.koichi@jp.panasonic.com,
	rth@twiddle.net, ink@jurassic.park.msu.ru,
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To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Xref: news.gmane.org gmane.linux.ports.ia64:26652 gmane.linux.ports.alpha:3640 gmane.linux.kernel:2208417 gmane.linux.ports.parisc:26665 gmane.linux.ports.ppc64.devel:126424 gmane.linux.ports.sh.devel:53821 gmane.linux.kernel.cross-arch:31694
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/26652>

Nothing on these architectures ever includes the asm/mc146818rtc.h
file, the drivers that used to do this have been fixed long ago,
and the remaining users are all PC-specific.

This removes the files for good.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/frv/include/asm/mc146818rtc.h    | 16 ----------------
 arch/h8300/include/asm/mc146818rtc.h  |  9 ---------
 arch/ia64/include/asm/mc146818rtc.h   | 10 ----------
 arch/parisc/include/asm/mc146818rtc.h |  9 ---------
 arch/sh/include/asm/mc146818rtc.h     |  7 -------
 5 files changed, 51 deletions(-)
 delete mode 100644 arch/frv/include/asm/mc146818rtc.h
 delete mode 100644 arch/h8300/include/asm/mc146818rtc.h
 delete mode 100644 arch/ia64/include/asm/mc146818rtc.h
 delete mode 100644 arch/parisc/include/asm/mc146818rtc.h
 delete mode 100644 arch/sh/include/asm/mc146818rtc.h

diff --git a/arch/frv/include/asm/mc146818rtc.h b/arch/frv/include/asm/mc146818rtc.h
deleted file mode 100644
index 90dfb7a633d1..000000000000
--- a/arch/frv/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* mc146818rtc.h: RTC defs
- *
- * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-
-#endif /* _ASM_MC146818RTC_H */
diff --git a/arch/h8300/include/asm/mc146818rtc.h b/arch/h8300/include/asm/mc146818rtc.h
deleted file mode 100644
index ab9d9646d241..000000000000
--- a/arch/h8300/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _H8300_MC146818RTC_H
-#define _H8300_MC146818RTC_H
-
-/* empty include file to satisfy the include in genrtc.c/ide-geometry.c */
-
-#endif /* _H8300_MC146818RTC_H */
diff --git a/arch/ia64/include/asm/mc146818rtc.h b/arch/ia64/include/asm/mc146818rtc.h
deleted file mode 100644
index 407787a237ba..000000000000
--- a/arch/ia64/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _ASM_IA64_MC146818RTC_H
-#define _ASM_IA64_MC146818RTC_H
-
-/*
- * Machine dependent access functions for RTC registers.
- */
-
-/* empty include file to satisfy the include in genrtc.c */
-
-#endif /* _ASM_IA64_MC146818RTC_H */
diff --git a/arch/parisc/include/asm/mc146818rtc.h b/arch/parisc/include/asm/mc146818rtc.h
deleted file mode 100644
index adf41631449f..000000000000
--- a/arch/parisc/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-/* empty include file to satisfy the include in genrtc.c */
-
-#endif /* _ASM_MC146818RTC_H */
diff --git a/arch/sh/include/asm/mc146818rtc.h b/arch/sh/include/asm/mc146818rtc.h
deleted file mode 100644
index 0aee96a97330..000000000000
--- a/arch/sh/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-#endif /* _ASM_MC146818RTC_H */
-- 
2.7.0

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From - Thu Nov 08 21:38:46 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: char: legacy RTC cleanups
Date: Tue, 26 Apr 2016 23:44:04 +0200
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Approved: news@gmane.org
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NNTP-Posting-Date: Tue, 26 Apr 2016 21:46:27 +0000 (UTC)
Cc: tony.luck@intel.com, geert@linux-m68k.org, jejb@parisc-linux.org,
	deller@gmx.de, benh@kernel.crashing.org, mpe@ellerman.id.au,
	dalias@libc.org, dhowells@redhat.com,
	yasutake.koichi@jp.panasonic.com, rth@twiddle.net,
	ink@jurassic.park.msu.ru, linux-alpha@vger.kernel.org,
	x86@kernel.org, a.zummo@towertech.it,
	alexandre.belloni@free-electrons.com, linux-kernel@vger.kernel.org,
	linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Original-X-From: linux-kernel-owner@vger.kernel.org Tue Apr 26 23:46:19 2016
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Xref: news.gmane.org gmane.linux.kernel:2208419 gmane.linux.ports.alpha:3641 gmane.linux.ports.ia64:26653 gmane.linux.ports.parisc:26666 gmane.linux.ports.ppc64.devel:126425 gmane.linux.ports.sh.devel:53822 gmane.linux.kernel.cross-arch:31695
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2208419>

I've had these patches in my tree for a while, after the first one
had a few issues that are fixed in this new version. The old-style
PC RTC driver is now also disabled on m68k (as pointed out by
Geert), ppc (it was also blacklisted), and m32r (I showed that
it did not build).

For the genrtc driver, rearranging the headers makes it simpler
to use and reduces duplication. In case of alpha and mn10300,
I've shown that the genrtc and rtc drivers are doing the same
thing, so we don't need them both. The remaining three
architectures (m68k, parisc, powerpc) actually all support
the newer rtc-generic driver, so we could remove genrtc completely
if we want to.

	Arnd



From - Thu Nov 08 21:38:46 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH 6/8] char/genrtc: parisc: use asm-generic/rtc.h
Date: Tue, 26 Apr 2016 23:44:10 +0200
Lines: 89
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Cc: Arnd Bergmann <arnd@arndb.de>, tony.luck@intel.com,
	geert@linux-m68k.org, jejb@parisc-linux.org, deller@gmx.de,
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To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2208420>

The asm-generic/rtc.h header can now be included by
architectures that provide their own set_rtc_time/get_rtc_time
macros, letting us remove most of the common contents in
the powerpc implementation.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/parisc/include/asm/rtc.h | 38 +++++---------------------------------
 1 file changed, 5 insertions(+), 33 deletions(-)

diff --git a/arch/parisc/include/asm/rtc.h b/arch/parisc/include/asm/rtc.h
index 099d641a42c2..d06cc581ecc2 100644
--- a/arch/parisc/include/asm/rtc.h
+++ b/arch/parisc/include/asm/rtc.h
@@ -12,26 +12,15 @@
 
 #ifdef __KERNEL__
 
-#include <linux/rtc.h>
+#define get_rtc_time parisc_get_rtc_time
+#define set_rtc_time parisc_set_rtc_time
+#include <asm-generic/rtc.h>
 
 #include <asm/pdc.h>
 
 #define SECS_PER_HOUR   (60 * 60)
 #define SECS_PER_DAY    (SECS_PER_HOUR * 24)
 
-
-#define RTC_PIE 0x40		/* periodic interrupt enable */
-#define RTC_AIE 0x20		/* alarm interrupt enable */
-#define RTC_UIE 0x10		/* update-finished interrupt enable */
-
-#define RTC_BATT_BAD 0x100	/* battery bad */
-
-/* some dummy definitions */
-#define RTC_SQWE 0x08		/* enable square-wave output */
-#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
-#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
-
 # define __isleap(year) \
   ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
 
@@ -44,7 +33,7 @@ static const unsigned short int __mon_yday[2][13] =
 	{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
 };
 
-static inline unsigned int get_rtc_time(struct rtc_time *wtime)
+static inline unsigned int parisc_get_rtc_time(struct rtc_time *wtime)
 {
 	struct pdc_tod tod_data;
 	long int days, rem, y;
@@ -96,7 +85,7 @@ static inline unsigned int get_rtc_time(struct rtc_time *wtime)
 	return RTC_24H;
 }
 
-static int set_rtc_time(struct rtc_time *wtime)
+static int parisc_set_rtc_time(struct rtc_time *wtime)
 {
 	u_int32_t secs;
 
@@ -110,22 +99,5 @@ static int set_rtc_time(struct rtc_time *wtime)
 
 }
 
-static inline unsigned int get_rtc_ss(void)
-{
-	struct rtc_time h;
-
-	get_rtc_time(&h);
-	return h.tm_sec;
-}
-
-static inline int get_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-static inline int set_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-
 #endif /* __KERNEL__ */
 #endif /* __ASM_RTC_H__ */
-- 
2.7.0



From - Thu Nov 08 21:38:46 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH 8/8] char/genrtc: disallow building on mn10300
Date: Tue, 26 Apr 2016 23:44:12 +0200
Lines: 34
Approved: news@gmane.org
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Cc: Arnd Bergmann <arnd@arndb.de>, tony.luck@intel.com,
	geert@linux-m68k.org, jejb@parisc-linux.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, yasutake.koichi@jp.panasonic.com,
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	linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2208421>

The genrtc driver serves no purpose on mn10300 because it drives the
same hardware as the original rtc.c driver, and the newer rtc-generic.c
or rtc-cmos.c drivers on architectures that use the asm-generic/rtc.h
header.

I assume it was initially only added for completeness when the
mn10300 port was done, but the older rtc.c driver was always used
instead.

It would be nice to change the architecture to use the rtc-cmos driver
next, and remove support for the old rtc driver as well.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/char/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 697510325b1d..d17ed90ebc82 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on M68K || MN10300 || PARISC || PPC
+	depends on M68K || PARISC || PPC
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
-- 
2.7.0



From - Thu Nov 08 21:38:46 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: [PATCH 5/8] char/genrtc: powerpc: use asm-generic/rtc.h
Date: Tue, 26 Apr 2016 23:44:09 +0200
Lines: 76
Approved: news@gmane.org
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Cc: Arnd Bergmann <arnd@arndb.de>, tony.luck@intel.com,
	geert@linux-m68k.org, jejb@parisc-linux.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, yasutake.koichi@jp.panasonic.com,
	rth@twiddle.net, ink@jurassic.park.msu.ru,
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	linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/31698>

The asm-generic/rtc.h header can now be included by
architectures that provide their own set_rtc_time/get_rtc_time
macros, letting us remove most of the common contents in
the powerpc implementation.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/powerpc/include/asm/rtc.h | 36 +++++-------------------------------
 1 file changed, 5 insertions(+), 31 deletions(-)

diff --git a/arch/powerpc/include/asm/rtc.h b/arch/powerpc/include/asm/rtc.h
index f5802926b6c0..c6659582bd1e 100644
--- a/arch/powerpc/include/asm/rtc.h
+++ b/arch/powerpc/include/asm/rtc.h
@@ -26,23 +26,14 @@
 
 #ifdef __KERNEL__
 
-#include <linux/rtc.h>
+#define get_rtc_time powerpc_get_rtc_time
+#define set_rtc_time powerpc_set_rtc_time
+#include <asm-generic/rtc.h>
 
 #include <asm/machdep.h>
 #include <asm/time.h>
 
-#define RTC_PIE 0x40		/* periodic interrupt enable */
-#define RTC_AIE 0x20		/* alarm interrupt enable */
-#define RTC_UIE 0x10		/* update-finished interrupt enable */
-
-/* some dummy definitions */
-#define RTC_BATT_BAD 0x100	/* battery bad */
-#define RTC_SQWE 0x08		/* enable square-wave output */
-#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
-#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
-
-static inline unsigned int get_rtc_time(struct rtc_time *time)
+static inline unsigned int powerpc_get_rtc_time(struct rtc_time *time)
 {
 	if (ppc_md.get_rtc_time)
 		ppc_md.get_rtc_time(time);
@@ -50,29 +41,12 @@ static inline unsigned int get_rtc_time(struct rtc_time *time)
 }
 
 /* Set the current date and time in the real time clock. */
-static inline int set_rtc_time(struct rtc_time *time)
+static inline int powerpc_set_rtc_time(struct rtc_time *time)
 {
 	if (ppc_md.set_rtc_time)
 		return ppc_md.set_rtc_time(time);
 	return -EINVAL;
 }
 
-static inline unsigned int get_rtc_ss(void)
-{
-	struct rtc_time h;
-
-	get_rtc_time(&h);
-	return h.tm_sec;
-}
-
-static inline int get_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-static inline int set_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-
 #endif /* __KERNEL__ */
 #endif /* __ASM_POWERPC_RTC_H__ */
-- 
2.7.0


From - Thu Nov 08 21:38:46 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH 2/8] char/rtc: legacy RTC is no longer supported on x86
Date: Tue, 26 Apr 2016 23:44:06 +0200
Lines: 43
Approved: news@gmane.org
Message-ID: <1461707052-1337718-3-git-send-email-arnd@arndb.de>
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Cc: Arnd Bergmann <arnd@arndb.de>, tony.luck@intel.com,
	geert@linux-m68k.org, jejb@parisc-linux.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
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To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26670>

Commit 3195ef59cb42 ("x86: Do full rtc synchronization with ntp") had
the side-effect of unconditionally enabling the RTC_LIB symbol on x86,
which in turn disables the selection of the CONFIG_RTC and
CONFIG_GEN_RTC drivers that contain a two older implementations of
the CONFIG_RTC_DRV_CMOS driver.

This removes x86 from the list.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/char/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 66b5d48f409a..9bdb629fbaae 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -279,7 +279,7 @@ if RTC_LIB=n
 
 config RTC
 	tristate "Enhanced Real Time Clock Support (legacy PC RTC driver)"
-	depends on ALPHA || (MIPS && MACH_LOONGSON64) || MN10300 || X86
+	depends on ALPHA || (MIPS && MACH_LOONGSON64) || MN10300
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on ALPHA || M68K || MN10300 || PARISC || PPC || X86
+	depends on ALPHA || M68K || MN10300 || PARISC || PPC
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
-- 
2.7.0

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From - Thu Nov 08 21:38:46 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH 4/8] char/rtc: move mc146818rtc code out of asm-generic/rtc.h
Date: Tue, 26 Apr 2016 23:44:08 +0200
Lines: 517
Approved: news@gmane.org
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Cc: Arnd Bergmann <arnd@arndb.de>, tony.luck@intel.com,
	geert@linux-m68k.org, jejb@parisc-linux.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, yasutake.koichi@jp.panasonic.com,
	rth@twiddle.net, ink@jurassic.park.msu.ru,
	linux-alpha@vger.kernel.org, x86@kernel.org, a.zummo@towertech.it,
	alexandre.belloni@free-electrons.com, linux-kernel@vger.kernel.org,
	linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/26658>

Drivers should not really include stuff from asm-generic directly,
and the PC-style cmos rtc driver does this in order to reuse the
mc146818 implementation of get_rtc_time/set_rtc_time rather than
the architecture specific one for the architecture it gets built for.

To make it more obvious what is going on, this moves and renames the
two functions into include/linux/mc146818rtc.h, which holds the
other mc146818 specific code. Ideally it would be in a .c file,
but that would require extra infrastructure as the functions are
called by multiple drivers with conflicting dependencies.

With this change, the asm-generic/rtc.h header also becomes much
more generic, so it can be reused more easily across any architecture
that still relies on the genrtc driver.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/rtc/rtc-cmos.c      |  12 +--
 include/asm-generic/rtc.h   | 206 ++------------------------------------------
 include/linux/mc146818rtc.h | 194 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 205 insertions(+), 207 deletions(-)

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 84fb541038be..c7993f18edfa 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -43,7 +43,7 @@
 #include <linux/of_platform.h>
 
 /* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */
-#include <asm-generic/rtc.h>
+#include <linux/mc146818rtc.h>
 
 struct cmos_rtc {
 	struct rtc_device	*rtc;
@@ -190,10 +190,10 @@ static inline void cmos_write_bank2(unsigned char val, unsigned char addr)
 static int cmos_read_time(struct device *dev, struct rtc_time *t)
 {
 	/* REVISIT:  if the clock has a "century" register, use
-	 * that instead of the heuristic in get_rtc_time().
+	 * that instead of the heuristic in mc146818_get_time().
 	 * That'll make Y3K compatility (year > 2070) easy!
 	 */
-	get_rtc_time(t);
+	mc146818_get_time(t);
 	return 0;
 }
 
@@ -205,7 +205,7 @@ static int cmos_set_time(struct device *dev, struct rtc_time *t)
 	 * takes effect exactly 500ms after we write the register.
 	 * (Also queueing and other delays before we get this far.)
 	 */
-	return set_rtc_time(t);
+	return mc146818_set_time(t);
 }
 
 static int cmos_read_alarm(struct device *dev, struct rtc_wkalrm *t)
@@ -1142,14 +1142,14 @@ static __init void cmos_of_init(struct platform_device *pdev)
 	if (val)
 		CMOS_WRITE(be32_to_cpup(val), RTC_FREQ_SELECT);
 
-	get_rtc_time(&time);
+	cmos_read_time(&pdev->dev, &time);
 	ret = rtc_valid_tm(&time);
 	if (ret) {
 		struct rtc_time def_time = {
 			.tm_year = 1,
 			.tm_mday = 1,
 		};
-		set_rtc_time(&def_time);
+		cmos_set_time(&pdev->dev, &def_time);
 	}
 }
 #else
diff --git a/include/asm-generic/rtc.h b/include/asm-generic/rtc.h
index 4e3b6558331e..4fcff22cd707 100644
--- a/include/asm-generic/rtc.h
+++ b/include/asm-generic/rtc.h
@@ -12,12 +12,12 @@
 #ifndef __ASM_RTC_H__
 #define __ASM_RTC_H__
 
-#include <linux/mc146818rtc.h>
 #include <linux/rtc.h>
-#include <linux/bcd.h>
-#include <linux/delay.h>
-#ifdef CONFIG_ACPI
-#include <linux/acpi.h>
+
+#ifndef get_rtc_time
+#include <linux/mc146818rtc.h>
+#define get_rtc_time mc146818_get_time
+#define set_rtc_time mc146818_set_time
 #endif
 
 #define RTC_PIE 0x40		/* periodic interrupt enable */
@@ -31,202 +31,6 @@
 #define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
 #define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
 
-/*
- * Returns true if a clock update is in progress
- */
-static inline unsigned char rtc_is_updating(void)
-{
-	unsigned char uip;
-	unsigned long flags;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-	uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP);
-	spin_unlock_irqrestore(&rtc_lock, flags);
-	return uip;
-}
-
-static inline unsigned int __get_rtc_time(struct rtc_time *time)
-{
-	unsigned char ctrl;
-	unsigned long flags;
-	unsigned char century = 0;
-
-#ifdef CONFIG_MACH_DECSTATION
-	unsigned int real_year;
-#endif
-
-	/*
-	 * read RTC once any update in progress is done. The update
-	 * can take just over 2ms. We wait 20ms. There is no need to
-	 * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
-	 * If you need to know *exactly* when a second has started, enable
-	 * periodic update complete interrupts, (via ioctl) and then 
-	 * immediately read /dev/rtc which will block until you get the IRQ.
-	 * Once the read clears, read the RTC time (again via ioctl). Easy.
-	 */
-	if (rtc_is_updating())
-		mdelay(20);
-
-	/*
-	 * Only the values that we read from the RTC are set. We leave
-	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
-	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
-	 * by the RTC when initially set to a non-zero value.
-	 */
-	spin_lock_irqsave(&rtc_lock, flags);
-	time->tm_sec = CMOS_READ(RTC_SECONDS);
-	time->tm_min = CMOS_READ(RTC_MINUTES);
-	time->tm_hour = CMOS_READ(RTC_HOURS);
-	time->tm_mday = CMOS_READ(RTC_DAY_OF_MONTH);
-	time->tm_mon = CMOS_READ(RTC_MONTH);
-	time->tm_year = CMOS_READ(RTC_YEAR);
-#ifdef CONFIG_MACH_DECSTATION
-	real_year = CMOS_READ(RTC_DEC_YEAR);
-#endif
-#ifdef CONFIG_ACPI
-	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
-	    acpi_gbl_FADT.century)
-		century = CMOS_READ(acpi_gbl_FADT.century);
-#endif
-	ctrl = CMOS_READ(RTC_CONTROL);
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
-	{
-		time->tm_sec = bcd2bin(time->tm_sec);
-		time->tm_min = bcd2bin(time->tm_min);
-		time->tm_hour = bcd2bin(time->tm_hour);
-		time->tm_mday = bcd2bin(time->tm_mday);
-		time->tm_mon = bcd2bin(time->tm_mon);
-		time->tm_year = bcd2bin(time->tm_year);
-		century = bcd2bin(century);
-	}
-
-#ifdef CONFIG_MACH_DECSTATION
-	time->tm_year += real_year - 72;
-#endif
-
-	if (century)
-		time->tm_year += (century - 19) * 100;
-
-	/*
-	 * Account for differences between how the RTC uses the values
-	 * and how they are defined in a struct rtc_time;
-	 */
-	if (time->tm_year <= 69)
-		time->tm_year += 100;
-
-	time->tm_mon--;
-
-	return RTC_24H;
-}
-
-#ifndef get_rtc_time
-#define get_rtc_time	__get_rtc_time
-#endif
-
-/* Set the current date and time in the real time clock. */
-static inline int __set_rtc_time(struct rtc_time *time)
-{
-	unsigned long flags;
-	unsigned char mon, day, hrs, min, sec;
-	unsigned char save_control, save_freq_select;
-	unsigned int yrs;
-#ifdef CONFIG_MACH_DECSTATION
-	unsigned int real_yrs, leap_yr;
-#endif
-	unsigned char century = 0;
-
-	yrs = time->tm_year;
-	mon = time->tm_mon + 1;   /* tm_mon starts at zero */
-	day = time->tm_mday;
-	hrs = time->tm_hour;
-	min = time->tm_min;
-	sec = time->tm_sec;
-
-	if (yrs > 255)	/* They are unsigned */
-		return -EINVAL;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-#ifdef CONFIG_MACH_DECSTATION
-	real_yrs = yrs;
-	leap_yr = ((!((yrs + 1900) % 4) && ((yrs + 1900) % 100)) ||
-			!((yrs + 1900) % 400));
-	yrs = 72;
-
-	/*
-	 * We want to keep the year set to 73 until March
-	 * for non-leap years, so that Feb, 29th is handled
-	 * correctly.
-	 */
-	if (!leap_yr && mon < 3) {
-		real_yrs--;
-		yrs = 73;
-	}
-#endif
-
-#ifdef CONFIG_ACPI
-	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
-	    acpi_gbl_FADT.century) {
-		century = (yrs + 1900) / 100;
-		yrs %= 100;
-	}
-#endif
-
-	/* These limits and adjustments are independent of
-	 * whether the chip is in binary mode or not.
-	 */
-	if (yrs > 169) {
-		spin_unlock_irqrestore(&rtc_lock, flags);
-		return -EINVAL;
-	}
-
-	if (yrs >= 100)
-		yrs -= 100;
-
-	if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY)
-	    || RTC_ALWAYS_BCD) {
-		sec = bin2bcd(sec);
-		min = bin2bcd(min);
-		hrs = bin2bcd(hrs);
-		day = bin2bcd(day);
-		mon = bin2bcd(mon);
-		yrs = bin2bcd(yrs);
-		century = bin2bcd(century);
-	}
-
-	save_control = CMOS_READ(RTC_CONTROL);
-	CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
-	save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
-	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
-
-#ifdef CONFIG_MACH_DECSTATION
-	CMOS_WRITE(real_yrs, RTC_DEC_YEAR);
-#endif
-	CMOS_WRITE(yrs, RTC_YEAR);
-	CMOS_WRITE(mon, RTC_MONTH);
-	CMOS_WRITE(day, RTC_DAY_OF_MONTH);
-	CMOS_WRITE(hrs, RTC_HOURS);
-	CMOS_WRITE(min, RTC_MINUTES);
-	CMOS_WRITE(sec, RTC_SECONDS);
-#ifdef CONFIG_ACPI
-	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
-	    acpi_gbl_FADT.century)
-		CMOS_WRITE(century, acpi_gbl_FADT.century);
-#endif
-
-	CMOS_WRITE(save_control, RTC_CONTROL);
-	CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
-
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	return 0;
-}
-
-#ifndef set_rtc_time
-#define set_rtc_time	__set_rtc_time
-#endif
-
 static inline unsigned int get_rtc_ss(void)
 {
 	struct rtc_time h;
diff --git a/include/linux/mc146818rtc.h b/include/linux/mc146818rtc.h
index 433e0c74d643..e9e346b37846 100644
--- a/include/linux/mc146818rtc.h
+++ b/include/linux/mc146818rtc.h
@@ -14,6 +14,12 @@
 #include <asm/io.h>
 #include <linux/rtc.h>			/* get the user-level API */
 #include <asm/mc146818rtc.h>		/* register access macros */
+#include <linux/bcd.h>
+#include <linux/delay.h>
+
+#ifdef CONFIG_ACPI
+#include <linux/acpi.h>
+#endif
 
 #ifdef __KERNEL__
 #include <linux/spinlock.h>		/* spinlock_t */
@@ -120,4 +126,192 @@ struct cmos_rtc_board_info {
 #define RTC_IO_EXTENT_USED      RTC_IO_EXTENT
 #endif /* ARCH_RTC_LOCATION */
 
+/*
+ * Returns true if a clock update is in progress
+ */
+static inline unsigned char mc146818_is_updating(void)
+{
+	unsigned char uip;
+	unsigned long flags;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+	uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP);
+	spin_unlock_irqrestore(&rtc_lock, flags);
+	return uip;
+}
+
+static inline unsigned int mc146818_get_time(struct rtc_time *time)
+{
+	unsigned char ctrl;
+	unsigned long flags;
+	unsigned char century = 0;
+
+#ifdef CONFIG_MACH_DECSTATION
+	unsigned int real_year;
+#endif
+
+	/*
+	 * read RTC once any update in progress is done. The update
+	 * can take just over 2ms. We wait 20ms. There is no need to
+	 * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
+	 * If you need to know *exactly* when a second has started, enable
+	 * periodic update complete interrupts, (via ioctl) and then 
+	 * immediately read /dev/rtc which will block until you get the IRQ.
+	 * Once the read clears, read the RTC time (again via ioctl). Easy.
+	 */
+	if (mc146818_is_updating())
+		mdelay(20);
+
+	/*
+	 * Only the values that we read from the RTC are set. We leave
+	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
+	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
+	 * by the RTC when initially set to a non-zero value.
+	 */
+	spin_lock_irqsave(&rtc_lock, flags);
+	time->tm_sec = CMOS_READ(RTC_SECONDS);
+	time->tm_min = CMOS_READ(RTC_MINUTES);
+	time->tm_hour = CMOS_READ(RTC_HOURS);
+	time->tm_mday = CMOS_READ(RTC_DAY_OF_MONTH);
+	time->tm_mon = CMOS_READ(RTC_MONTH);
+	time->tm_year = CMOS_READ(RTC_YEAR);
+#ifdef CONFIG_MACH_DECSTATION
+	real_year = CMOS_READ(RTC_DEC_YEAR);
+#endif
+#ifdef CONFIG_ACPI
+	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
+	    acpi_gbl_FADT.century)
+		century = CMOS_READ(acpi_gbl_FADT.century);
+#endif
+	ctrl = CMOS_READ(RTC_CONTROL);
+	spin_unlock_irqrestore(&rtc_lock, flags);
+
+	if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
+	{
+		time->tm_sec = bcd2bin(time->tm_sec);
+		time->tm_min = bcd2bin(time->tm_min);
+		time->tm_hour = bcd2bin(time->tm_hour);
+		time->tm_mday = bcd2bin(time->tm_mday);
+		time->tm_mon = bcd2bin(time->tm_mon);
+		time->tm_year = bcd2bin(time->tm_year);
+		century = bcd2bin(century);
+	}
+
+#ifdef CONFIG_MACH_DECSTATION
+	time->tm_year += real_year - 72;
+#endif
+
+	if (century)
+		time->tm_year += (century - 19) * 100;
+
+	/*
+	 * Account for differences between how the RTC uses the values
+	 * and how they are defined in a struct rtc_time;
+	 */
+	if (time->tm_year <= 69)
+		time->tm_year += 100;
+
+	time->tm_mon--;
+
+	return RTC_24H;
+}
+
+/* Set the current date and time in the real time clock. */
+static inline int mc146818_set_time(struct rtc_time *time)
+{
+	unsigned long flags;
+	unsigned char mon, day, hrs, min, sec;
+	unsigned char save_control, save_freq_select;
+	unsigned int yrs;
+#ifdef CONFIG_MACH_DECSTATION
+	unsigned int real_yrs, leap_yr;
+#endif
+	unsigned char century = 0;
+
+	yrs = time->tm_year;
+	mon = time->tm_mon + 1;   /* tm_mon starts at zero */
+	day = time->tm_mday;
+	hrs = time->tm_hour;
+	min = time->tm_min;
+	sec = time->tm_sec;
+
+	if (yrs > 255)	/* They are unsigned */
+		return -EINVAL;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+#ifdef CONFIG_MACH_DECSTATION
+	real_yrs = yrs;
+	leap_yr = ((!((yrs + 1900) % 4) && ((yrs + 1900) % 100)) ||
+			!((yrs + 1900) % 400));
+	yrs = 72;
+
+	/*
+	 * We want to keep the year set to 73 until March
+	 * for non-leap years, so that Feb, 29th is handled
+	 * correctly.
+	 */
+	if (!leap_yr && mon < 3) {
+		real_yrs--;
+		yrs = 73;
+	}
+#endif
+
+#ifdef CONFIG_ACPI
+	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
+	    acpi_gbl_FADT.century) {
+		century = (yrs + 1900) / 100;
+		yrs %= 100;
+	}
+#endif
+
+	/* These limits and adjustments are independent of
+	 * whether the chip is in binary mode or not.
+	 */
+	if (yrs > 169) {
+		spin_unlock_irqrestore(&rtc_lock, flags);
+		return -EINVAL;
+	}
+
+	if (yrs >= 100)
+		yrs -= 100;
+
+	if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY)
+	    || RTC_ALWAYS_BCD) {
+		sec = bin2bcd(sec);
+		min = bin2bcd(min);
+		hrs = bin2bcd(hrs);
+		day = bin2bcd(day);
+		mon = bin2bcd(mon);
+		yrs = bin2bcd(yrs);
+		century = bin2bcd(century);
+	}
+
+	save_control = CMOS_READ(RTC_CONTROL);
+	CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
+	save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
+	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
+
+#ifdef CONFIG_MACH_DECSTATION
+	CMOS_WRITE(real_yrs, RTC_DEC_YEAR);
+#endif
+	CMOS_WRITE(yrs, RTC_YEAR);
+	CMOS_WRITE(mon, RTC_MONTH);
+	CMOS_WRITE(day, RTC_DAY_OF_MONTH);
+	CMOS_WRITE(hrs, RTC_HOURS);
+	CMOS_WRITE(min, RTC_MINUTES);
+	CMOS_WRITE(sec, RTC_SECONDS);
+#ifdef CONFIG_ACPI
+	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
+	    acpi_gbl_FADT.century)
+		CMOS_WRITE(century, acpi_gbl_FADT.century);
+#endif
+
+	CMOS_WRITE(save_control, RTC_CONTROL);
+	CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
+
+	spin_unlock_irqrestore(&rtc_lock, flags);
+
+	return 0;
+}
+
 #endif /* _MC146818RTC_H */
-- 
2.7.0

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From - Thu Nov 08 21:38:46 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: [PATCH v2 0/6] simplify rtc-generic driver
Date: Tue, 26 Apr 2016 23:52:25 +0200
Lines: 13
Approved: news@gmane.org
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Cc: geert@linux-m68k.org, deller@gmx.de, benh@kernel.crashing.org,
	mpe@ellerman.id.au, dalias@libc.org, dhowells@redhat.com,
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	linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/31701>

This is a resend of an earlier series, to clean up the rtc-generic
driver by avoiding the dependency on the architecture specific
include/asm/rtc.h header that after this series is only used
for the deprecated "genrtc" driver. As I've shown in another
series, only three architectures (m68k, powerpc, parisc)
actually use the genrtc driver, and they all support rtc-generic
as a replacement as well.

The only missing piece appears to be the ioctl support for
the m68k q40 machine that I'm adding in patch 2 here.

	Arnd


From - Thu Nov 08 21:38:46 2018
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Subject: [PATCH v2 2/6] rtc: m68k: provide ioctl for q40
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2208429>

The q40 platform is the only machine in the kernel that provides
RTC_PLL_GET/RTC_PLL_SET ioctl commands in its rtc through the
mach_get_rtc_pll/mach_set_rtc_pll callbacks.

However, this currenctly works only in the old-style genrtc
driver, not the (somewhat) modern rtc-generic driver replacing
it. This adds an ioctl implementation to the m68k generic_rtc_ops
in order to let both drivers provide the same API.

After this, we should be able to remove support for genrtc
from the m68k architecture.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/m68k/kernel/time.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index fe35890feede..5f0a5826a05e 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -100,7 +100,32 @@ static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
 	return 0;
 }
 
+static int rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
+{
+	struct rtc_pll_info pll;
+	struct rtc_pll_info __user *argp = (void __user *)arg;
+
+	switch (cmd) {
+	case RTC_PLL_GET:
+		if (!mach_get_rtc_pll || mach_get_rtc_pll(&pll))
+			return -EINVAL;
+		return copy_to_user(argp, &pll, sizeof pll) ? -EFAULT : 0;
+
+	case RTC_PLL_SET:
+		if (!mach_set_rtc_pll)
+			return -EINVAL;
+		if (!capable(CAP_SYS_TIME))
+			return -EACCES;
+		if (copy_from_user(&pll, argp, sizeof(pll)))
+			return -EFAULT;
+		return mach_set_rtc_pll(&pll);
+	}
+
+	return -ENOIOCTLCMD;
+}
+
 static const struct rtc_class_ops generic_rtc_ops = {
+	.ioctl = rtc_ioctl,
 	.read_time = rtc_generic_get_time,
 	.set_time = rtc_generic_set_time,
 };
-- 
2.7.0



From - Thu Nov 08 21:38:46 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: [PATCH v2 1/6] rtc: m68k: provide rtc_class_ops directly
Date: Tue, 26 Apr 2016 23:52:26 +0200
Lines: 59
Approved: news@gmane.org
Message-ID: <1461707551-1337971-2-git-send-email-arnd@arndb.de>
References: <1461707551-1337971-1-git-send-email-arnd@arndb.de>
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
	a.zummo@towertech.it, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/31703>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and m68k has another abstraction on top, which is a bit
silly.

This changes the m68k rtc-generic device to provide its
rtc_class_ops directly, to reduce the number of layers
by one.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/m68k/kernel/time.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 3857737e3958..fe35890feede 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -86,7 +86,24 @@ void read_persistent_clock(struct timespec *ts)
 	}
 }
 
-#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
+#if defined(CONFIG_ARCH_USES_GETTIMEOFFSET) && defined(CONFIG_RTC_DRV_GENERIC)
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	mach_hwclk(0, tm);
+	return rtc_valid_tm(tm);
+}
+
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	if (mach_hwclk(1, tm) < 0)
+		return -EOPNOTSUPP;
+	return 0;
+}
+
+static const struct rtc_class_ops generic_rtc_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
 
 static int __init rtc_init(void)
 {
@@ -95,7 +112,10 @@ static int __init rtc_init(void)
 	if (!mach_hwclk)
 		return -ENODEV;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	/* or just call devm_rtc_device_register instead? */
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &generic_rtc_ops,
+					     sizeof(generic_rtc_ops));
 	return PTR_ERR_OR_ZERO(pdev);
 }
 
-- 
2.7.0


From - Thu Nov 08 21:38:46 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 5/6] rtc: sh: provide rtc_class_ops directly
Date: Tue, 26 Apr 2016 23:52:30 +0200
Lines: 76
Approved: news@gmane.org
Message-ID: <1461707551-1337971-6-git-send-email-arnd@arndb.de>
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
	a.zummo@towertech.it, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/8545>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and on sh, that goes through another indirection using
the rtc_sh_get_time/rtc_sh_set_time functions.

This changes the sh rtc-generic device to provide its
rtc_class_ops directly, skipping one of the abstraction
levels.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/sh/kernel/time.c | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index d6d0a986c6e9..92cd676970d9 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -50,27 +50,30 @@ int update_persistent_clock(struct timespec now)
 }
 #endif
 
-unsigned int get_rtc_time(struct rtc_time *tm)
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
 {
-	if (rtc_sh_get_time != null_rtc_get_time) {
-		struct timespec tv;
+	struct timespec tv;
 
-		rtc_sh_get_time(&tv);
-		rtc_time_to_tm(tv.tv_sec, tm);
-	}
-
-	return RTC_24H;
+	rtc_sh_get_time(&tv);
+	rtc_time_to_tm(tv.tv_sec, tm);
+	return 0;
 }
-EXPORT_SYMBOL(get_rtc_time);
 
-int set_rtc_time(struct rtc_time *tm)
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
 {
 	unsigned long secs;
 
 	rtc_tm_to_time(tm, &secs);
-	return rtc_sh_set_time(secs);
+	if (!rtc_sh_set_time || rtc_sh_set_time(secs) < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
 }
-EXPORT_SYMBOL(set_rtc_time);
+
+static const struct rtc_class_ops rtc_generic_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
 
 static int __init rtc_generic_init(void)
 {
@@ -79,7 +82,10 @@ static int __init rtc_generic_init(void)
 	if (rtc_sh_get_time == null_rtc_get_time)
 		return -ENODEV;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &rtc_generic_ops,
+					     sizeof(rtc_generic_ops));
+
 
 	return PTR_ERR_OR_ZERO(pdev);
 }
-- 
2.7.0


From - Thu Nov 08 21:38:46 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 3/6] rtc: powerpc: provide rtc_class_ops directly
Date: Tue, 26 Apr 2016 23:52:28 +0200
Lines: 73
Approved: news@gmane.org
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
	a.zummo@towertech.it, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Original-Sender: linux-m68k-owner@vger.kernel.org
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Xref: news.gmane.org gmane.linux.ports.m68k:8546 gmane.linux.ports.alpha:3651 gmane.linux.kernel:2208432 gmane.linux.ports.parisc:26676 gmane.linux.ports.ppc64.devel:126435 gmane.linux.ports.sh.devel:53832 gmane.linux.kernel.cross-arch:31705
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/8546>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and powerpc has another abstraction on top, which is a bit
silly.

This changes the powerpc rtc-generic device to provide its
rtc_class_ops directly, to reduce the number of layers
by one.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/powerpc/kernel/time.c | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 3ed9a5a21d77..aeac4d9591f9 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -56,6 +56,7 @@
 #include <linux/irq_work.h>
 #include <linux/clk-provider.h>
 #include <linux/suspend.h>
+#include <linux/rtc.h>
 #include <asm/trace.h>
 
 #include <asm/io.h>
@@ -1081,6 +1082,29 @@ void calibrate_delay(void)
 	loops_per_jiffy = tb_ticks_per_jiffy;
 }
 
+#ifdef CONFIG_RTC_DRV_GENERIC
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	ppc_md.get_rtc_time(tm);
+	return rtc_valid_tm(tm);
+}
+
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	if (!ppc_md.set_rtc_time)
+		return -EOPNOTSUPP;
+
+	if (ppc_md.set_rtc_time(tm) < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
+static const struct rtc_class_ops rtc_generic_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
+
 static int __init rtc_init(void)
 {
 	struct platform_device *pdev;
@@ -1088,9 +1112,12 @@ static int __init rtc_init(void)
 	if (!ppc_md.get_rtc_time)
 		return -ENODEV;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &rtc_generic_ops,
+					     sizeof(rtc_generic_ops));
 
 	return PTR_ERR_OR_ZERO(pdev);
 }
 
 device_initcall(rtc_init);
+#endif
-- 
2.7.0


From - Thu Nov 08 21:38:46 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 4/6] rtc: parisc: provide rtc_class_ops directly
Date: Tue, 26 Apr 2016 23:52:29 +0200
Lines: 80
Approved: news@gmane.org
Message-ID: <1461707551-1337971-5-git-send-email-arnd@arndb.de>
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
	a.zummo@towertech.it, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2208433>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and on pa-risc, that is implemented using an open-coded
version of rtc_time_to_tm/rtc_tm_to_time.

This changes the parisc rtc-generic device to provide its
rtc_class_ops directly, using the normal helper functions,
which makes this y2038 safe (on 32-bit) and simplifies
the implementation.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/parisc/kernel/time.c | 36 +++++++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 58dd6801f5be..1338d92fc87b 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -12,6 +12,7 @@
  */
 #include <linux/errno.h>
 #include <linux/module.h>
+#include <linux/rtc.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/param.h>
@@ -248,14 +249,47 @@ void __init start_cpu_itimer(void)
 	per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
+#ifdef CONFIG_RTC_DRV_GENERIC
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	struct pdc_tod tod_data;
+
+	memset(tm, 0, sizeof(*tm));
+	if (pdc_tod_read(&tod_data) < 0)
+		return -EOPNOTSUPP;
+
+	/* we treat tod_sec as unsigned, so this can work until year 2106 */
+	rtc_time64_to_tm(tod_data.tod_sec, &tm);
+	return rtc_valid_tm(tm);
+}
+
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	time64_t secs = rtc_tm_to_time64(tm);
+
+	if (pdc_tod_set(secs, 0) < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
+static const struct rtc_class_ops rtc_generic_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
+
 static int __init rtc_init(void)
 {
 	struct platform_device *pdev;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &rtc_generic_ops,
+					     sizeof(rtc_generic_ops));
+
 	return PTR_ERR_OR_ZERO(pdev);
 }
 device_initcall(rtc_init);
+#endif
 
 void read_persistent_clock(struct timespec *ts)
 {
-- 
2.7.0



From - Thu Nov 08 21:38:47 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 6/6] rtc: generic: remove get_rtc_time/set_rtc_time wrappers
Date: Tue, 26 Apr 2016 23:52:31 +0200
Lines: 51
Approved: news@gmane.org
Message-ID: <1461707551-1337971-7-git-send-email-arnd@arndb.de>
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
	a.zummo@towertech.it, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26678>

All architectures using this driver are now converted to
provide their own operations, so this one can be turned
into a trivial stub driver relying on its platform data.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/rtc/rtc-generic.c | 36 +-----------------------------------
 1 file changed, 1 insertion(+), 35 deletions(-)

diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
index d726c6aa96a8..1bf5d2347928 100644
--- a/drivers/rtc/rtc-generic.c
+++ b/drivers/rtc/rtc-generic.c
@@ -9,44 +9,10 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 
-#if defined(CONFIG_M68K) || defined(CONFIG_PARISC) || \
-    defined(CONFIG_PPC) || defined(CONFIG_SUPERH32)
-#include <asm/rtc.h>
-
-static int generic_get_time(struct device *dev, struct rtc_time *tm)
-{
-	unsigned int ret = get_rtc_time(tm);
-
-	if (ret & RTC_BATT_BAD)
-		return -EOPNOTSUPP;
-
-	return rtc_valid_tm(tm);
-}
-
-static int generic_set_time(struct device *dev, struct rtc_time *tm)
-{
-	if (set_rtc_time(tm) < 0)
-		return -EOPNOTSUPP;
-
-	return 0;
-}
-
-static const struct rtc_class_ops generic_rtc_ops = {
-	.read_time = generic_get_time,
-	.set_time = generic_set_time,
-};
-#else
-#define generic_rtc_ops *(struct rtc_class_ops*)NULL
-#endif
-
 static int __init generic_rtc_probe(struct platform_device *dev)
 {
 	struct rtc_device *rtc;
-	const struct rtc_class_ops *ops;

From - Thu Nov 08 21:38:47 2018
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X-Mozilla-Keys:                                                                                 
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 6/8] char/genrtc: parisc: use asm-generic/rtc.h
Date: Wed, 27 Apr 2016 00:07:47 +0200
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Approved: news@gmane.org
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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	deller@gmx.de, benh@kernel.crashing.org, mpe@ellerman.id.au,
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To: Arnd Bergmann <arnd@arndb.de>
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Arnd Bergmann wrote:
> The asm-generic/rtc.h header can now be included by
> architectures that provide their own set_rtc_time/get_rtc_time
> macros, letting us remove most of the common contents in
> the powerpc implementation.

parisc in this case.

Eike
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Subject: Re: [PATCH v2 4/6] rtc: parisc: provide rtc_class_ops directly
Date: Wed, 27 Apr 2016 08:22:24 +0800
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Hi,

[auto build test ERROR on next-20160426]
[cannot apply to m68k/for-next abelloni/rtc-next v4.6-rc5 v4.6-rc4 v4.6-rc3 v4.6-rc5]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Arnd-Bergmann/simplify-rtc-generic-driver/20160427-055751
config: parisc-c3000_defconfig (attached as .config)
compiler: hppa-linux-gnu-gcc (Debian 5.3.1-8) 5.3.1 20160205
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=parisc 

Note: the linux-review/Arnd-Bergmann/simplify-rtc-generic-driver/20160427-055751 HEAD ba518829eb442ee7f7806864a806fa45791f787f builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   arch/parisc/kernel/time.c: In function 'rtc_generic_get_time':
>> arch/parisc/kernel/time.c:262:37: error: passing argument 2 of 'rtc_time64_to_tm' from incompatible pointer type [-Werror=incompatible-pointer-types]
     rtc_time64_to_tm(tod_data.tod_sec, &tm);
                                        ^
   In file included from arch/parisc/kernel/time.c:15:0:
   include/linux/rtc.h:23:13: note: expected 'struct rtc_time *' but argument is of type 'struct rtc_time **'
    extern void rtc_time64_to_tm(time64_t time, struct rtc_time *tm);
                ^
   cc1: some warnings being treated as errors

vim +/rtc_time64_to_tm +262 arch/parisc/kernel/time.c

   256	
   257		memset(tm, 0, sizeof(*tm));
   258		if (pdc_tod_read(&tod_data) < 0)
   259			return -EOPNOTSUPP;
   260	
   261		/* we treat tod_sec as unsigned, so this can work until year 2106 */
 > 262		rtc_time64_to_tm(tod_data.tod_sec, &tm);
   263		return rtc_valid_tm(tm);
   264	}
   265	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From: "Dmitry V. Levin" <ldv@altlinux.org>
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Subject: [PATCH] parisc: fix a bug when syscall number of tracee is __NR_Linux_syscalls
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Do not load one entry beyond the end of the syscall table when the
syscall number of a traced process equals to __NR_Linux_syscalls.
Similar bug with regular processes was fixed by commit 3bb457af4fa8
("[PARISC] Fix bug when syscall nr is __NR_Linux_syscalls").

This bug was found by strace test suite.

Cc: stable@vger.kernel.org
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
---
 arch/parisc/kernel/syscall.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index c976ebf..57b4836 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -344,7 +344,7 @@ tracesys_next:
 #endif
 
 	cmpib,COND(=),n -1,%r20,tracesys_exit /* seccomp may have returned -1 */
-	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
+	comiclr,>>	__NR_Linux_syscalls, %r20, %r0
 	b,n	.Ltracesys_nosys
 
 	LDREGX  %r20(%r19), %r19
-- 
ldv


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From: Mike Frysinger <vapier@gentoo.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: fix a bug when syscall number of tracee is
 __NR_Linux_syscalls
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On 27 Apr 2016 04:56, Dmitry V. Levin wrote:
> Do not load one entry beyond the end of the syscall table when the
> syscall number of a traced process equals to __NR_Linux_syscalls.
> Similar bug with regular processes was fixed by commit 3bb457af4fa8
> ("[PARISC] Fix bug when syscall nr is __NR_Linux_syscalls").
>=20
> This bug was found by strace test suite.
>=20
> Cc: stable@vger.kernel.org
> Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
> ---
>  arch/parisc/kernel/syscall.S | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>=20
> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> index c976ebf..57b4836 100644
> --- a/arch/parisc/kernel/syscall.S
> +++ b/arch/parisc/kernel/syscall.S
> @@ -344,7 +344,7 @@ tracesys_next:
>  #endif
> =20
>  	cmpib,COND(=3D),n -1,%r20,tracesys_exit /* seccomp may have returned -1=
 */
> -	comiclr,>>=3D	__NR_Linux_syscalls, %r20, %r0
> +	comiclr,>>	__NR_Linux_syscalls, %r20, %r0
>  	b,n	.Ltracesys_nosys
> =20
>  	LDREGX  %r20(%r19), %r19

i've deployd your fix to hake, so feel free to give the tests another
run to try and crash the box :).
-mike

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From - Thu Nov 08 21:38:47 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: fix a bug when syscall number of tracee is __NR_Linux_syscalls
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On Tue, Apr 26, 2016 at 10:45:11PM -0400, Mike Frysinger wrote:
> On 27 Apr 2016 04:56, Dmitry V. Levin wrote:
> > Do not load one entry beyond the end of the syscall table when the
> > syscall number of a traced process equals to __NR_Linux_syscalls.
> > Similar bug with regular processes was fixed by commit 3bb457af4fa8
> > ("[PARISC] Fix bug when syscall nr is __NR_Linux_syscalls").
> >=20
> > This bug was found by strace test suite.
> >=20
> > Cc: stable@vger.kernel.org
> > Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
> > ---
> >  arch/parisc/kernel/syscall.S | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >=20
> > diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> > index c976ebf..57b4836 100644
> > --- a/arch/parisc/kernel/syscall.S
> > +++ b/arch/parisc/kernel/syscall.S
> > @@ -344,7 +344,7 @@ tracesys_next:
> >  #endif
> > =20
> >  	cmpib,COND(=3D),n -1,%r20,tracesys_exit /* seccomp may have returned =
-1 */
> > -	comiclr,>>=3D	__NR_Linux_syscalls, %r20, %r0
> > +	comiclr,>>	__NR_Linux_syscalls, %r20, %r0
> >  	b,n	.Ltracesys_nosys
> > =20
> >  	LDREGX  %r20(%r19), %r19
>=20
> i've deployd your fix to hake, so feel free to give the tests another
> run to try and crash the box :).

With this fix the box no longer crashes.


--=20
ldv

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From - Thu Nov 08 21:38:47 2018
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Subject: Re: [PATCH v2 1/6] rtc: m68k: provide rtc_class_ops directly
Date: Wed, 27 Apr 2016 09:47:56 +0200
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Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>,
	Helge Deller <deller@gmx.de>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
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To: Arnd Bergmann <arnd@arndb.de>
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Hi Arnd,

On Tue, Apr 26, 2016 at 11:52 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> The rtc-generic driver provides an architecture specific
> wrapper on top of the generic rtc_class_ops abstraction,
> and m68k has another abstraction on top, which is a bit
> silly.
>
> This changes the m68k rtc-generic device to provide its
> rtc_class_ops directly, to reduce the number of layers
> by one.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  arch/m68k/kernel/time.c | 24 ++++++++++++++++++++++--
>  1 file changed, 22 insertions(+), 2 deletions(-)
>
> diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
> index 3857737e3958..fe35890feede 100644
> --- a/arch/m68k/kernel/time.c
> +++ b/arch/m68k/kernel/time.c
> @@ -86,7 +86,24 @@ void read_persistent_clock(struct timespec *ts)
>         }
>  }
>
> -#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
> +#if defined(CONFIG_ARCH_USES_GETTIMEOFFSET) && defined(CONFIG_RTC_DRV_GENERIC)

s/defined/IS_ENABLED/ for the modular case.

> @@ -95,7 +112,10 @@ static int __init rtc_init(void)
>         if (!mach_hwclk)
>                 return -ENODEV;
>
> -       pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
> +       /* or just call devm_rtc_device_register instead? */

I guess this comment is a bogus leftover? There's no "dev" parameter to
pass to devm_rtc_device_register() here.

> +       pdev = platform_device_register_data(NULL, "rtc-generic", -1,
> +                                            &generic_rtc_ops,
> +                                            sizeof(generic_rtc_ops));
>         return PTR_ERR_OR_ZERO(pdev);
>  }

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

From - Thu Nov 08 21:38:47 2018
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Subject: Re: [PATCH v2 0/6] simplify rtc-generic driver
Date: Wed, 27 Apr 2016 09:50:58 +0200
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To: Arnd Bergmann <arnd@arndb.de>
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Hi Arnd,

On Tue, Apr 26, 2016 at 11:52 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> This is a resend of an earlier series, to clean up the rtc-generic
> driver by avoiding the dependency on the architecture specific
> include/asm/rtc.h header that after this series is only used
> for the deprecated "genrtc" driver. As I've shown in another
> series, only three architectures (m68k, powerpc, parisc)
> actually use the genrtc driver, and they all support rtc-generic
> as a replacement as well.
>
> The only missing piece appears to be the ioctl support for
> the m68k q40 machine that I'm adding in patch 2 here.

Apparently I had applied your previous version to my local tree, but I had
completely forgotten about it. So it has received quite some compile testing.

CONFIG_GEN_RTC is not enabled in any of the m68k defconfigs, so I think it's
been unused for a while.
CONFIG_RTC_DRV_GENERIC is modular, so I typically don't run-test it.
I just did that, and after fixing patch 1 to use IS_ENABLED() it worked fine
on ARAnyM.

Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>

I do not have a Q40, so I couldn't test that part.

Thanks!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

From - Thu Nov 08 21:38:47 2018
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Subject: Re: char: legacy RTC cleanups
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To: Arnd Bergmann <arnd@arndb.de>
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Hi Arnd,

On Tue, Apr 26, 2016 at 11:44 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> For the genrtc driver, rearranging the headers makes it simpler
> to use and reduces duplication. In case of alpha and mn10300,
> I've shown that the genrtc and rtc drivers are doing the same
> thing, so we don't need them both. The remaining three
> architectures (m68k, parisc, powerpc) actually all support
> the newer rtc-generic driver, so we could remove genrtc completely
> if we want to.

CONFIG_GEN_RTC is not enabled in any of the m68k defconfigs, so I think genrtc
has been unused for a while.
All defconfigs either use CONFIG_RTC_DRV_GENERIC, or enable a more specific
RTC driver.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
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From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Subject: Re: [PATCH 1/8] char/rtc: replace blacklist with whitelist
Date: Wed, 27 Apr 2016 10:31:24 +0200
Lines: 44
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	tony.luck@intel.com, geert@linux-m68k.org, jejb@parisc-linux.org,
	deller@gmx.de, benh@kernel.crashing.org, mpe@ellerman.id.au,
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To: Arnd Bergmann <arnd@arndb.de>
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On 26/04/2016 at 23:44:05 +0200, Arnd Bergmann wrote :
> Every new architecture has to add itself to the growing list of those
> that do not support the legacy PC RTC driver.
> 
> This replaces the long list of architectures that don't support it
> with a shorter list of those that do.
> 
> The list is taken from those architectures that have a non-empty
> asm/mc146818rtc.h header file and were not explicitly blacklisted.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

> ---
>  drivers/char/Kconfig | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
> index 3ec0766ed5e9..66b5d48f409a 100644
> --- a/drivers/char/Kconfig
> +++ b/drivers/char/Kconfig
> @@ -279,8 +279,7 @@ if RTC_LIB=n
>  
>  config RTC
>  	tristate "Enhanced Real Time Clock Support (legacy PC RTC driver)"
> -	depends on !PPC && !PARISC && !IA64 && !M68K && !SPARC && !FRV \
> -			&& !ARM && !SUPERH && !S390 && !AVR32 && !BLACKFIN && !UML
> +	depends on ALPHA || (MIPS && MACH_LOONGSON64) || MN10300 || X86
>  	---help---
>  	  If you say Y here and create a character special file /dev/rtc with
>  	  major number 10 and minor number 135 using mknod ("man mknod"), you
> -- 
> 2.7.0
> 

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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From - Thu Nov 08 21:38:47 2018
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Subject: Re: char: legacy RTC cleanups
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/3660>

On Wednesday 27 April 2016 09:54:41 Geert Uytterhoeven wrote:
> Hi Arnd,
> 
> On Tue, Apr 26, 2016 at 11:44 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> > For the genrtc driver, rearranging the headers makes it simpler
> > to use and reduces duplication. In case of alpha and mn10300,
> > I've shown that the genrtc and rtc drivers are doing the same
> > thing, so we don't need them both. The remaining three
> > architectures (m68k, parisc, powerpc) actually all support
> > the newer rtc-generic driver, so we could remove genrtc completely
> > if we want to.
> 
> CONFIG_GEN_RTC is not enabled in any of the m68k defconfigs, so I think genrtc
> has been unused for a while.
> All defconfigs either use CONFIG_RTC_DRV_GENERIC, or enable a more specific
> RTC driver.

Ok, good to know. I'm guessing the same is true for parisc, but there are
also very few users.

Regarding the Q40 specific ioctls, what do you think this means, is it

a) nobody uses Q40 with modern kernels,
b) nobody calls RTC_PLL_GET/RTC_PLL_SET on q40, or
c) Q40 users have their own configurations and enable GEN_RTC?

On powerpc, a quarter of the defconfigs (mostly for really old hardware)
still use GEN_RTC, but I guess we can either bulk-convert them to RTC_GENERIC,
or convert the five implementations of .get_rtc_time/.set_rtc_time
(8xx, rtas, chrp, powermac, maple) into five regular RTC class drivers.

	Arnd
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From - Thu Nov 08 21:38:47 2018
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Subject: Re: [PATCH 2/8] char/rtc: legacy RTC is no longer supported on x86
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On 26/04/2016 at 23:44:06 +0200, Arnd Bergmann wrote :
> Commit 3195ef59cb42 ("x86: Do full rtc synchronization with ntp") had
> the side-effect of unconditionally enabling the RTC_LIB symbol on x86,
> which in turn disables the selection of the CONFIG_RTC and
> CONFIG_GEN_RTC drivers that contain a two older implementations of
> the CONFIG_RTC_DRV_CMOS driver.
> 
> This removes x86 from the list.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

Two down, still four drivers for the x86 RTCs...


> ---
>  drivers/char/Kconfig | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
> index 66b5d48f409a..9bdb629fbaae 100644
> --- a/drivers/char/Kconfig
> +++ b/drivers/char/Kconfig
> @@ -279,7 +279,7 @@ if RTC_LIB=n
>  
>  config RTC
>  	tristate "Enhanced Real Time Clock Support (legacy PC RTC driver)"
> -	depends on ALPHA || (MIPS && MACH_LOONGSON64) || MN10300 || X86
> +	depends on ALPHA || (MIPS && MACH_LOONGSON64) || MN10300
>  	---help---
>  	  If you say Y here and create a character special file /dev/rtc with
>  	  major number 10 and minor number 135 using mknod ("man mknod"), you
> @@ -328,7 +328,7 @@ config JS_RTC
>  config GEN_RTC
>  	tristate "Generic /dev/rtc emulation"
>  	depends on RTC!=y
> -	depends on ALPHA || M68K || MN10300 || PARISC || PPC || X86
> +	depends on ALPHA || M68K || MN10300 || PARISC || PPC
>  	---help---
>  	  If you say Y here and create a character special file /dev/rtc with
>  	  major number 10 and minor number 135 using mknod ("man mknod"), you
> -- 
> 2.7.0
> 

-- 
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Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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Subject: Re: char: legacy RTC cleanups
Date: Wed, 27 Apr 2016 10:41:02 +0200
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To: Arnd Bergmann <arnd@arndb.de>
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Hi Arnd,

On Wed, Apr 27, 2016 at 10:33 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Wednesday 27 April 2016 09:54:41 Geert Uytterhoeven wrote:
>> On Tue, Apr 26, 2016 at 11:44 PM, Arnd Bergmann <arnd@arndb.de> wrote:
>> > For the genrtc driver, rearranging the headers makes it simpler
>> > to use and reduces duplication. In case of alpha and mn10300,
>> > I've shown that the genrtc and rtc drivers are doing the same
>> > thing, so we don't need them both. The remaining three
>> > architectures (m68k, parisc, powerpc) actually all support
>> > the newer rtc-generic driver, so we could remove genrtc completely
>> > if we want to.
>>
>> CONFIG_GEN_RTC is not enabled in any of the m68k defconfigs, so I think genrtc
>> has been unused for a while.
>> All defconfigs either use CONFIG_RTC_DRV_GENERIC, or enable a more specific
>> RTC driver.
>
> Ok, good to know. I'm guessing the same is true for parisc, but there are
> also very few users.
>
> Regarding the Q40 specific ioctls, what do you think this means, is it
>
> a) nobody uses Q40 with modern kernels,
> b) nobody calls RTC_PLL_GET/RTC_PLL_SET on q40, or
> c) Q40 users have their own configurations and enable GEN_RTC?

To be honest, I have no idea. There have never been many Q40 users.
(old) http://www.linux-m68k.org/Registry/Statistics.html shows only 8.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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when I'm talking to journalists I just say "programmer" or something like that.
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From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Subject: Re: [PATCH 3/8] char/rtc: remove empty asm/mc146818rtc.h files
Date: Wed, 27 Apr 2016 10:41:31 +0200
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	tony.luck@intel.com, geert@linux-m68k.org, jejb@parisc-linux.org,
	deller@gmx.de, benh@kernel.crashing.org, mpe@ellerman.id.au,
	dalias@libc.org, dhowells@redhat.com,
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To: Arnd Bergmann <arnd@arndb.de>
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On 26/04/2016 at 23:44:07 +0200, Arnd Bergmann wrote :
> Nothing on these architectures ever includes the asm/mc146818rtc.h
> file, the drivers that used to do this have been fixed long ago,
> and the remaining users are all PC-specific.
> 
> This removes the files for good.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

> ---
>  arch/frv/include/asm/mc146818rtc.h    | 16 ----------------
>  arch/h8300/include/asm/mc146818rtc.h  |  9 ---------
>  arch/ia64/include/asm/mc146818rtc.h   | 10 ----------
>  arch/parisc/include/asm/mc146818rtc.h |  9 ---------
>  arch/sh/include/asm/mc146818rtc.h     |  7 -------
>  5 files changed, 51 deletions(-)
>  delete mode 100644 arch/frv/include/asm/mc146818rtc.h
>  delete mode 100644 arch/h8300/include/asm/mc146818rtc.h
>  delete mode 100644 arch/ia64/include/asm/mc146818rtc.h
>  delete mode 100644 arch/parisc/include/asm/mc146818rtc.h
>  delete mode 100644 arch/sh/include/asm/mc146818rtc.h
> 
> diff --git a/arch/frv/include/asm/mc146818rtc.h b/arch/frv/include/asm/mc146818rtc.h
> deleted file mode 100644
> index 90dfb7a633d1..000000000000
> --- a/arch/frv/include/asm/mc146818rtc.h
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -/* mc146818rtc.h: RTC defs
> - *
> - * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
> - * Written by David Howells (dhowells@redhat.com)
> - *
> - * This program is free software; you can redistribute it and/or
> - * modify it under the terms of the GNU General Public License
> - * as published by the Free Software Foundation; either version
> - * 2 of the License, or (at your option) any later version.
> - */
> -
> -#ifndef _ASM_MC146818RTC_H
> -#define _ASM_MC146818RTC_H
> -
> -
> -#endif /* _ASM_MC146818RTC_H */
> diff --git a/arch/h8300/include/asm/mc146818rtc.h b/arch/h8300/include/asm/mc146818rtc.h
> deleted file mode 100644
> index ab9d9646d241..000000000000
> --- a/arch/h8300/include/asm/mc146818rtc.h
> +++ /dev/null
> @@ -1,9 +0,0 @@
> -/*
> - * Machine dependent access functions for RTC registers.
> - */
> -#ifndef _H8300_MC146818RTC_H
> -#define _H8300_MC146818RTC_H
> -
> -/* empty include file to satisfy the include in genrtc.c/ide-geometry.c */
> -
> -#endif /* _H8300_MC146818RTC_H */
> diff --git a/arch/ia64/include/asm/mc146818rtc.h b/arch/ia64/include/asm/mc146818rtc.h
> deleted file mode 100644
> index 407787a237ba..000000000000
> --- a/arch/ia64/include/asm/mc146818rtc.h
> +++ /dev/null
> @@ -1,10 +0,0 @@
> -#ifndef _ASM_IA64_MC146818RTC_H
> -#define _ASM_IA64_MC146818RTC_H
> -
> -/*
> - * Machine dependent access functions for RTC registers.
> - */
> -
> -/* empty include file to satisfy the include in genrtc.c */
> -
> -#endif /* _ASM_IA64_MC146818RTC_H */
> diff --git a/arch/parisc/include/asm/mc146818rtc.h b/arch/parisc/include/asm/mc146818rtc.h
> deleted file mode 100644
> index adf41631449f..000000000000
> --- a/arch/parisc/include/asm/mc146818rtc.h
> +++ /dev/null
> @@ -1,9 +0,0 @@
> -/*
> - * Machine dependent access functions for RTC registers.
> - */
> -#ifndef _ASM_MC146818RTC_H
> -#define _ASM_MC146818RTC_H
> -
> -/* empty include file to satisfy the include in genrtc.c */
> -
> -#endif /* _ASM_MC146818RTC_H */
> diff --git a/arch/sh/include/asm/mc146818rtc.h b/arch/sh/include/asm/mc146818rtc.h
> deleted file mode 100644
> index 0aee96a97330..000000000000
> --- a/arch/sh/include/asm/mc146818rtc.h
> +++ /dev/null
> @@ -1,7 +0,0 @@
> -/*
> - * Machine dependent access functions for RTC registers.
> - */
> -#ifndef _ASM_MC146818RTC_H
> -#define _ASM_MC146818RTC_H
> -
> -#endif /* _ASM_MC146818RTC_H */
> -- 
> 2.7.0
> 

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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From - Thu Nov 08 21:38:48 2018
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Subject: Re: [PATCH 4/8] char/rtc: move mc146818rtc code out of
 asm-generic/rtc.h
Date: Wed, 27 Apr 2016 11:29:12 +0200
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	tony.luck@intel.com, geert@linux-m68k.org, jejb@parisc-linux.org,
	deller@gmx.de, benh@kernel.crashing.org, mpe@ellerman.id.au,
	dalias@libc.org, dhowells@redhat.com,
	yasutake.koichi@jp.panasonic.com, rth@twiddle.net,
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To: Arnd Bergmann <arnd@arndb.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26692>

The subject should be:
rtc: cmos: move mc146818rtc code out of asm-generic/rtc.h

Else, you can add:
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>


On 26/04/2016 at 23:44:08 +0200, Arnd Bergmann wrote :
> Drivers should not really include stuff from asm-generic directly,
> and the PC-style cmos rtc driver does this in order to reuse the
> mc146818 implementation of get_rtc_time/set_rtc_time rather than
> the architecture specific one for the architecture it gets built for.
> 
> To make it more obvious what is going on, this moves and renames the
> two functions into include/linux/mc146818rtc.h, which holds the
> other mc146818 specific code. Ideally it would be in a .c file,
> but that would require extra infrastructure as the functions are
> called by multiple drivers with conflicting dependencies.
> 
> With this change, the asm-generic/rtc.h header also becomes much
> more generic, so it can be reused more easily across any architecture
> that still relies on the genrtc driver.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  drivers/rtc/rtc-cmos.c      |  12 +--
>  include/asm-generic/rtc.h   | 206 ++------------------------------------------
>  include/linux/mc146818rtc.h | 194 +++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 205 insertions(+), 207 deletions(-)
> 
> diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
> index 84fb541038be..c7993f18edfa 100644
> --- a/drivers/rtc/rtc-cmos.c
> +++ b/drivers/rtc/rtc-cmos.c
> @@ -43,7 +43,7 @@
>  #include <linux/of_platform.h>
>  
>  /* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */
> -#include <asm-generic/rtc.h>
> +#include <linux/mc146818rtc.h>
>  
>  struct cmos_rtc {
>  	struct rtc_device	*rtc;
> @@ -190,10 +190,10 @@ static inline void cmos_write_bank2(unsigned char val, unsigned char addr)
>  static int cmos_read_time(struct device *dev, struct rtc_time *t)
>  {
>  	/* REVISIT:  if the clock has a "century" register, use
> -	 * that instead of the heuristic in get_rtc_time().
> +	 * that instead of the heuristic in mc146818_get_time().
>  	 * That'll make Y3K compatility (year > 2070) easy!
>  	 */
> -	get_rtc_time(t);
> +	mc146818_get_time(t);
>  	return 0;
>  }
>  
> @@ -205,7 +205,7 @@ static int cmos_set_time(struct device *dev, struct rtc_time *t)
>  	 * takes effect exactly 500ms after we write the register.
>  	 * (Also queueing and other delays before we get this far.)
>  	 */
> -	return set_rtc_time(t);
> +	return mc146818_set_time(t);
>  }
>  
>  static int cmos_read_alarm(struct device *dev, struct rtc_wkalrm *t)
> @@ -1142,14 +1142,14 @@ static __init void cmos_of_init(struct platform_device *pdev)
>  	if (val)
>  		CMOS_WRITE(be32_to_cpup(val), RTC_FREQ_SELECT);
>  
> -	get_rtc_time(&time);
> +	cmos_read_time(&pdev->dev, &time);
>  	ret = rtc_valid_tm(&time);
>  	if (ret) {
>  		struct rtc_time def_time = {
>  			.tm_year = 1,
>  			.tm_mday = 1,
>  		};
> -		set_rtc_time(&def_time);
> +		cmos_set_time(&pdev->dev, &def_time);
>  	}
>  }
>  #else
> diff --git a/include/asm-generic/rtc.h b/include/asm-generic/rtc.h
> index 4e3b6558331e..4fcff22cd707 100644
> --- a/include/asm-generic/rtc.h
> +++ b/include/asm-generic/rtc.h
> @@ -12,12 +12,12 @@
>  #ifndef __ASM_RTC_H__
>  #define __ASM_RTC_H__
>  
> -#include <linux/mc146818rtc.h>
>  #include <linux/rtc.h>
> -#include <linux/bcd.h>
> -#include <linux/delay.h>
> -#ifdef CONFIG_ACPI
> -#include <linux/acpi.h>
> +
> +#ifndef get_rtc_time
> +#include <linux/mc146818rtc.h>
> +#define get_rtc_time mc146818_get_time
> +#define set_rtc_time mc146818_set_time
>  #endif
>  
>  #define RTC_PIE 0x40		/* periodic interrupt enable */
> @@ -31,202 +31,6 @@
>  #define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
>  #define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
>  
> -/*
> - * Returns true if a clock update is in progress
> - */
> -static inline unsigned char rtc_is_updating(void)
> -{
> -	unsigned char uip;
> -	unsigned long flags;
> -
> -	spin_lock_irqsave(&rtc_lock, flags);
> -	uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP);
> -	spin_unlock_irqrestore(&rtc_lock, flags);
> -	return uip;
> -}
> -
> -static inline unsigned int __get_rtc_time(struct rtc_time *time)
> -{
> -	unsigned char ctrl;
> -	unsigned long flags;
> -	unsigned char century = 0;
> -
> -#ifdef CONFIG_MACH_DECSTATION
> -	unsigned int real_year;
> -#endif
> -
> -	/*
> -	 * read RTC once any update in progress is done. The update
> -	 * can take just over 2ms. We wait 20ms. There is no need to
> -	 * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
> -	 * If you need to know *exactly* when a second has started, enable
> -	 * periodic update complete interrupts, (via ioctl) and then 
> -	 * immediately read /dev/rtc which will block until you get the IRQ.
> -	 * Once the read clears, read the RTC time (again via ioctl). Easy.
> -	 */
> -	if (rtc_is_updating())
> -		mdelay(20);
> -
> -	/*
> -	 * Only the values that we read from the RTC are set. We leave
> -	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
> -	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
> -	 * by the RTC when initially set to a non-zero value.
> -	 */
> -	spin_lock_irqsave(&rtc_lock, flags);
> -	time->tm_sec = CMOS_READ(RTC_SECONDS);
> -	time->tm_min = CMOS_READ(RTC_MINUTES);
> -	time->tm_hour = CMOS_READ(RTC_HOURS);
> -	time->tm_mday = CMOS_READ(RTC_DAY_OF_MONTH);
> -	time->tm_mon = CMOS_READ(RTC_MONTH);
> -	time->tm_year = CMOS_READ(RTC_YEAR);
> -#ifdef CONFIG_MACH_DECSTATION
> -	real_year = CMOS_READ(RTC_DEC_YEAR);
> -#endif
> -#ifdef CONFIG_ACPI
> -	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
> -	    acpi_gbl_FADT.century)
> -		century = CMOS_READ(acpi_gbl_FADT.century);
> -#endif
> -	ctrl = CMOS_READ(RTC_CONTROL);
> -	spin_unlock_irqrestore(&rtc_lock, flags);
> -
> -	if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
> -	{
> -		time->tm_sec = bcd2bin(time->tm_sec);
> -		time->tm_min = bcd2bin(time->tm_min);
> -		time->tm_hour = bcd2bin(time->tm_hour);
> -		time->tm_mday = bcd2bin(time->tm_mday);
> -		time->tm_mon = bcd2bin(time->tm_mon);
> -		time->tm_year = bcd2bin(time->tm_year);
> -		century = bcd2bin(century);
> -	}
> -
> -#ifdef CONFIG_MACH_DECSTATION
> -	time->tm_year += real_year - 72;
> -#endif
> -
> -	if (century)
> -		time->tm_year += (century - 19) * 100;
> -
> -	/*
> -	 * Account for differences between how the RTC uses the values
> -	 * and how they are defined in a struct rtc_time;
> -	 */
> -	if (time->tm_year <= 69)
> -		time->tm_year += 100;
> -
> -	time->tm_mon--;
> -
> -	return RTC_24H;
> -}
> -
> -#ifndef get_rtc_time
> -#define get_rtc_time	__get_rtc_time
> -#endif
> -
> -/* Set the current date and time in the real time clock. */
> -static inline int __set_rtc_time(struct rtc_time *time)
> -{
> -	unsigned long flags;
> -	unsigned char mon, day, hrs, min, sec;
> -	unsigned char save_control, save_freq_select;
> -	unsigned int yrs;
> -#ifdef CONFIG_MACH_DECSTATION
> -	unsigned int real_yrs, leap_yr;
> -#endif
> -	unsigned char century = 0;
> -
> -	yrs = time->tm_year;
> -	mon = time->tm_mon + 1;   /* tm_mon starts at zero */
> -	day = time->tm_mday;
> -	hrs = time->tm_hour;
> -	min = time->tm_min;
> -	sec = time->tm_sec;
> -
> -	if (yrs > 255)	/* They are unsigned */
> -		return -EINVAL;
> -
> -	spin_lock_irqsave(&rtc_lock, flags);
> -#ifdef CONFIG_MACH_DECSTATION
> -	real_yrs = yrs;
> -	leap_yr = ((!((yrs + 1900) % 4) && ((yrs + 1900) % 100)) ||
> -			!((yrs + 1900) % 400));
> -	yrs = 72;
> -
> -	/*
> -	 * We want to keep the year set to 73 until March
> -	 * for non-leap years, so that Feb, 29th is handled
> -	 * correctly.
> -	 */
> -	if (!leap_yr && mon < 3) {
> -		real_yrs--;
> -		yrs = 73;
> -	}
> -#endif
> -
> -#ifdef CONFIG_ACPI
> -	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
> -	    acpi_gbl_FADT.century) {
> -		century = (yrs + 1900) / 100;
> -		yrs %= 100;
> -	}
> -#endif
> -
> -	/* These limits and adjustments are independent of
> -	 * whether the chip is in binary mode or not.
> -	 */
> -	if (yrs > 169) {
> -		spin_unlock_irqrestore(&rtc_lock, flags);
> -		return -EINVAL;
> -	}
> -
> -	if (yrs >= 100)
> -		yrs -= 100;
> -
> -	if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY)
> -	    || RTC_ALWAYS_BCD) {
> -		sec = bin2bcd(sec);
> -		min = bin2bcd(min);
> -		hrs = bin2bcd(hrs);
> -		day = bin2bcd(day);
> -		mon = bin2bcd(mon);
> -		yrs = bin2bcd(yrs);
> -		century = bin2bcd(century);
> -	}
> -
> -	save_control = CMOS_READ(RTC_CONTROL);
> -	CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
> -	save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
> -	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
> -
> -#ifdef CONFIG_MACH_DECSTATION
> -	CMOS_WRITE(real_yrs, RTC_DEC_YEAR);
> -#endif
> -	CMOS_WRITE(yrs, RTC_YEAR);
> -	CMOS_WRITE(mon, RTC_MONTH);
> -	CMOS_WRITE(day, RTC_DAY_OF_MONTH);
> -	CMOS_WRITE(hrs, RTC_HOURS);
> -	CMOS_WRITE(min, RTC_MINUTES);
> -	CMOS_WRITE(sec, RTC_SECONDS);
> -#ifdef CONFIG_ACPI
> -	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
> -	    acpi_gbl_FADT.century)
> -		CMOS_WRITE(century, acpi_gbl_FADT.century);
> -#endif
> -
> -	CMOS_WRITE(save_control, RTC_CONTROL);
> -	CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
> -
> -	spin_unlock_irqrestore(&rtc_lock, flags);
> -
> -	return 0;
> -}
> -
> -#ifndef set_rtc_time
> -#define set_rtc_time	__set_rtc_time
> -#endif
> -
>  static inline unsigned int get_rtc_ss(void)
>  {
>  	struct rtc_time h;
> diff --git a/include/linux/mc146818rtc.h b/include/linux/mc146818rtc.h
> index 433e0c74d643..e9e346b37846 100644
> --- a/include/linux/mc146818rtc.h
> +++ b/include/linux/mc146818rtc.h
> @@ -14,6 +14,12 @@
>  #include <asm/io.h>
>  #include <linux/rtc.h>			/* get the user-level API */
>  #include <asm/mc146818rtc.h>		/* register access macros */
> +#include <linux/bcd.h>
> +#include <linux/delay.h>
> +
> +#ifdef CONFIG_ACPI
> +#include <linux/acpi.h>
> +#endif
>  
>  #ifdef __KERNEL__
>  #include <linux/spinlock.h>		/* spinlock_t */
> @@ -120,4 +126,192 @@ struct cmos_rtc_board_info {
>  #define RTC_IO_EXTENT_USED      RTC_IO_EXTENT
>  #endif /* ARCH_RTC_LOCATION */
>  
> +/*
> + * Returns true if a clock update is in progress
> + */
> +static inline unsigned char mc146818_is_updating(void)
> +{
> +	unsigned char uip;
> +	unsigned long flags;
> +
> +	spin_lock_irqsave(&rtc_lock, flags);
> +	uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP);
> +	spin_unlock_irqrestore(&rtc_lock, flags);
> +	return uip;
> +}
> +
> +static inline unsigned int mc146818_get_time(struct rtc_time *time)
> +{
> +	unsigned char ctrl;
> +	unsigned long flags;
> +	unsigned char century = 0;
> +
> +#ifdef CONFIG_MACH_DECSTATION
> +	unsigned int real_year;
> +#endif
> +
> +	/*
> +	 * read RTC once any update in progress is done. The update
> +	 * can take just over 2ms. We wait 20ms. There is no need to
> +	 * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
> +	 * If you need to know *exactly* when a second has started, enable
> +	 * periodic update complete interrupts, (via ioctl) and then 
> +	 * immediately read /dev/rtc which will block until you get the IRQ.
> +	 * Once the read clears, read the RTC time (again via ioctl). Easy.
> +	 */
> +	if (mc146818_is_updating())
> +		mdelay(20);
> +
> +	/*
> +	 * Only the values that we read from the RTC are set. We leave
> +	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
> +	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
> +	 * by the RTC when initially set to a non-zero value.
> +	 */
> +	spin_lock_irqsave(&rtc_lock, flags);
> +	time->tm_sec = CMOS_READ(RTC_SECONDS);
> +	time->tm_min = CMOS_READ(RTC_MINUTES);
> +	time->tm_hour = CMOS_READ(RTC_HOURS);
> +	time->tm_mday = CMOS_READ(RTC_DAY_OF_MONTH);
> +	time->tm_mon = CMOS_READ(RTC_MONTH);
> +	time->tm_year = CMOS_READ(RTC_YEAR);
> +#ifdef CONFIG_MACH_DECSTATION
> +	real_year = CMOS_READ(RTC_DEC_YEAR);
> +#endif
> +#ifdef CONFIG_ACPI
> +	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
> +	    acpi_gbl_FADT.century)
> +		century = CMOS_READ(acpi_gbl_FADT.century);
> +#endif
> +	ctrl = CMOS_READ(RTC_CONTROL);
> +	spin_unlock_irqrestore(&rtc_lock, flags);
> +
> +	if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
> +	{
> +		time->tm_sec = bcd2bin(time->tm_sec);
> +		time->tm_min = bcd2bin(time->tm_min);
> +		time->tm_hour = bcd2bin(time->tm_hour);
> +		time->tm_mday = bcd2bin(time->tm_mday);
> +		time->tm_mon = bcd2bin(time->tm_mon);
> +		time->tm_year = bcd2bin(time->tm_year);
> +		century = bcd2bin(century);
> +	}
> +
> +#ifdef CONFIG_MACH_DECSTATION
> +	time->tm_year += real_year - 72;
> +#endif
> +
> +	if (century)
> +		time->tm_year += (century - 19) * 100;
> +
> +	/*
> +	 * Account for differences between how the RTC uses the values
> +	 * and how they are defined in a struct rtc_time;
> +	 */
> +	if (time->tm_year <= 69)
> +		time->tm_year += 100;
> +
> +	time->tm_mon--;
> +
> +	return RTC_24H;
> +}
> +
> +/* Set the current date and time in the real time clock. */
> +static inline int mc146818_set_time(struct rtc_time *time)
> +{
> +	unsigned long flags;
> +	unsigned char mon, day, hrs, min, sec;
> +	unsigned char save_control, save_freq_select;
> +	unsigned int yrs;
> +#ifdef CONFIG_MACH_DECSTATION
> +	unsigned int real_yrs, leap_yr;
> +#endif
> +	unsigned char century = 0;
> +
> +	yrs = time->tm_year;
> +	mon = time->tm_mon + 1;   /* tm_mon starts at zero */
> +	day = time->tm_mday;
> +	hrs = time->tm_hour;
> +	min = time->tm_min;
> +	sec = time->tm_sec;
> +
> +	if (yrs > 255)	/* They are unsigned */
> +		return -EINVAL;
> +
> +	spin_lock_irqsave(&rtc_lock, flags);
> +#ifdef CONFIG_MACH_DECSTATION
> +	real_yrs = yrs;
> +	leap_yr = ((!((yrs + 1900) % 4) && ((yrs + 1900) % 100)) ||
> +			!((yrs + 1900) % 400));
> +	yrs = 72;
> +
> +	/*
> +	 * We want to keep the year set to 73 until March
> +	 * for non-leap years, so that Feb, 29th is handled
> +	 * correctly.
> +	 */
> +	if (!leap_yr && mon < 3) {
> +		real_yrs--;
> +		yrs = 73;
> +	}
> +#endif
> +
> +#ifdef CONFIG_ACPI
> +	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
> +	    acpi_gbl_FADT.century) {
> +		century = (yrs + 1900) / 100;
> +		yrs %= 100;
> +	}
> +#endif
> +
> +	/* These limits and adjustments are independent of
> +	 * whether the chip is in binary mode or not.
> +	 */
> +	if (yrs > 169) {
> +		spin_unlock_irqrestore(&rtc_lock, flags);
> +		return -EINVAL;
> +	}
> +
> +	if (yrs >= 100)
> +		yrs -= 100;
> +
> +	if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY)
> +	    || RTC_ALWAYS_BCD) {
> +		sec = bin2bcd(sec);
> +		min = bin2bcd(min);
> +		hrs = bin2bcd(hrs);
> +		day = bin2bcd(day);
> +		mon = bin2bcd(mon);
> +		yrs = bin2bcd(yrs);
> +		century = bin2bcd(century);
> +	}
> +
> +	save_control = CMOS_READ(RTC_CONTROL);
> +	CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
> +	save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
> +	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
> +
> +#ifdef CONFIG_MACH_DECSTATION
> +	CMOS_WRITE(real_yrs, RTC_DEC_YEAR);
> +#endif
> +	CMOS_WRITE(yrs, RTC_YEAR);
> +	CMOS_WRITE(mon, RTC_MONTH);
> +	CMOS_WRITE(day, RTC_DAY_OF_MONTH);
> +	CMOS_WRITE(hrs, RTC_HOURS);
> +	CMOS_WRITE(min, RTC_MINUTES);
> +	CMOS_WRITE(sec, RTC_SECONDS);
> +#ifdef CONFIG_ACPI
> +	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
> +	    acpi_gbl_FADT.century)
> +		CMOS_WRITE(century, acpi_gbl_FADT.century);
> +#endif
> +
> +	CMOS_WRITE(save_control, RTC_CONTROL);
> +	CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
> +
> +	spin_unlock_irqrestore(&rtc_lock, flags);
> +
> +	return 0;
> +}
> +
>  #endif /* _MC146818RTC_H */
> -- 
> 2.7.0
> 

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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From - Thu Nov 08 21:38:48 2018
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From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: Re: char: legacy RTC cleanups
Date: Wed, 27 Apr 2016 11:44:10 +0200
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To: Arnd Bergmann <arnd@arndb.de>
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On 26/04/2016 at 23:44:04 +0200, Arnd Bergmann wrote :
> I've had these patches in my tree for a while, after the first one
> had a few issues that are fixed in this new version. The old-style
> PC RTC driver is now also disabled on m68k (as pointed out by
> Geert), ppc (it was also blacklisted), and m32r (I showed that
> it did not build).
> 
> For the genrtc driver, rearranging the headers makes it simpler
> to use and reduces duplication. In case of alpha and mn10300,
> I've shown that the genrtc and rtc drivers are doing the same
> thing, so we don't need them both. The remaining three
> architectures (m68k, parisc, powerpc) actually all support
> the newer rtc-generic driver, so we could remove genrtc completely
> if we want to.
> 

Personally, I'd go for the kill and remove genrtc instead of cleaning it
up.

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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From - Thu Nov 08 21:38:48 2018
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Subject: Re: [PATCH 4/8] char/rtc: move mc146818rtc code out of asm-generic/rtc.h
Date: Wed, 27 Apr 2016 11:59:45 +0200
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On Wednesday 27 April 2016 11:29:12 Alexandre Belloni wrote:
> The subject should be:
> rtc: cmos: move mc146818rtc code out of asm-generic/rtc.h

Good point, the functions are only used by rtc-cmos, not the old
drivers/char/rtc.c.
 
> Else, you can add:
> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

Thanks.

	Arnd


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Subject: Re: [PATCH 2/8] char/rtc: legacy RTC is no longer supported on x86
Date: Wed, 27 Apr 2016 12:05:23 +0200 (CEST)
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To: Arnd Bergmann <arnd@arndb.de>
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On Tue, 26 Apr 2016, Arnd Bergmann wrote:

> Commit 3195ef59cb42 ("x86: Do full rtc synchronization with ntp") had
> the side-effect of unconditionally enabling the RTC_LIB symbol on x86,
> which in turn disables the selection of the CONFIG_RTC and
> CONFIG_GEN_RTC drivers that contain a two older implementations of
> the CONFIG_RTC_DRV_CMOS driver.
> 
> This removes x86 from the list.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
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From - Thu Nov 08 21:38:48 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: Re: char: legacy RTC cleanups
Date: Wed, 27 Apr 2016 12:07:29 +0200
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To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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On Wednesday 27 April 2016 11:44:10 Alexandre Belloni wrote:
> On 26/04/2016 at 23:44:04 +0200, Arnd Bergmann wrote :
> > I've had these patches in my tree for a while, after the first one
> > had a few issues that are fixed in this new version. The old-style
> > PC RTC driver is now also disabled on m68k (as pointed out by
> > Geert), ppc (it was also blacklisted), and m32r (I showed that
> > it did not build).
> > 
> > For the genrtc driver, rearranging the headers makes it simpler
> > to use and reduces duplication. In case of alpha and mn10300,
> > I've shown that the genrtc and rtc drivers are doing the same
> > thing, so we don't need them both. The remaining three
> > architectures (m68k, parisc, powerpc) actually all support
> > the newer rtc-generic driver, so we could remove genrtc completely
> > if we want to.
> > 
> 
> Personally, I'd go for the kill and remove genrtc instead of cleaning it up.

Right, so we could skip patches 5 and 6, and instead remove the two
headers as we remove the driver. Let's see what the architecture
maintainers think about it, at least powerpc actually enables gen_rtc
in its defconfig, so it might take a while to move it over.

	Arnd
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From - Thu Nov 08 21:38:48 2018
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From: Arnd Bergmann <arnd@arndb.de>
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Subject: Re: [PATCH v2 4/6] rtc: parisc: provide rtc_class_ops directly
Date: Wed, 27 Apr 2016 12:10:28 +0200
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On Wednesday 27 April 2016 08:22:24 kbuild test robot wrote:
> 
>    256  
>    257          memset(tm, 0, sizeof(*tm));
>    258          if (pdc_tod_read(&tod_data) < 0)
>    259                  return -EOPNOTSUPP;
>    260  
>    261          /* we treat tod_sec as unsigned, so this can work until year 2106 */
>  > 262          rtc_time64_to_tm(tod_data.tod_sec, &tm);
>    263          return rtc_valid_tm(tm);
>    264  }
> 

Fixed, thanks!

	Arnd

From - Thu Nov 08 21:38:48 2018
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From: Geert Uytterhoeven <geert@linux-m68k.org>
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Subject: Re: char: legacy RTC cleanups
Date: Wed, 27 Apr 2016 12:19:59 +0200
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Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Tony Luck <tony.luck@intel.com>,
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To: Arnd Bergmann <arnd@arndb.de>
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Hi Arnd,

On Wed, Apr 27, 2016 at 12:07 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Wednesday 27 April 2016 11:44:10 Alexandre Belloni wrote:
>> On 26/04/2016 at 23:44:04 +0200, Arnd Bergmann wrote :
>> > I've had these patches in my tree for a while, after the first one
>> > had a few issues that are fixed in this new version. The old-style
>> > PC RTC driver is now also disabled on m68k (as pointed out by
>> > Geert), ppc (it was also blacklisted), and m32r (I showed that
>> > it did not build).
>> >
>> > For the genrtc driver, rearranging the headers makes it simpler
>> > to use and reduces duplication. In case of alpha and mn10300,
>> > I've shown that the genrtc and rtc drivers are doing the same
>> > thing, so we don't need them both. The remaining three
>> > architectures (m68k, parisc, powerpc) actually all support
>> > the newer rtc-generic driver, so we could remove genrtc completely
>> > if we want to.
>> >
>>
>> Personally, I'd go for the kill and remove genrtc instead of cleaning it up.
>
> Right, so we could skip patches 5 and 6, and instead remove the two
> headers as we remove the driver. Let's see what the architecture
> maintainers think about it, at least powerpc actually enables gen_rtc
> in its defconfig, so it might take a while to move it over.

FWIW, all PPC defconfigs (except tqm8xx.dts, which is a more recent platform)
enabling it did that long before my old commit to enable rtc-generic support
on PPC:

commit bcd68a70cb0eee556d86d93133aa150319bd9f53
Author: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Date:   Thu Feb 19 16:50:46 2009 +0100

    powerpc: Hook up rtc-generic, and kill rtc-ppc

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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From - Thu Nov 08 21:38:48 2018
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Subject: Re: [PATCH v2 1/6] rtc: m68k: provide rtc_class_ops directly
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Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>,
	Helge Deller <deller@gmx.de>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On Wednesday 27 April 2016 09:47:56 Geert Uytterhoeven wrote:
> > --- a/arch/m68k/kernel/time.c
> > +++ b/arch/m68k/kernel/time.c
> > @@ -86,7 +86,24 @@ void read_persistent_clock(struct timespec *ts)
> >         }
> >  }
> >
> > -#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
> > +#if defined(CONFIG_ARCH_USES_GETTIMEOFFSET) && defined(CONFIG_RTC_DRV_GENERIC)
> 
> s/defined/IS_ENABLED/ for the modular case.

Thanks, fixed in all three architectures/

> > @@ -95,7 +112,10 @@ static int __init rtc_init(void)
> >         if (!mach_hwclk)
> >                 return -ENODEV;
> >
> > -       pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
> > +       /* or just call devm_rtc_device_register instead? */
> 
> I guess this comment is a bogus leftover? There's no "dev" parameter to
> pass to devm_rtc_device_register() here.

Sort of. When I wrote it, I thought that a NULL argument would work,
and I later found out myself that it doesn't.

I'll drop the comment there, but there are still a few ways we (probably
not me, but whoever is interested) could take this further:

- register both the device and the driver here, and call
  devm_rtc_device_register from the probe function so we can move away
  from drivers/rtc/rtc-generic.c

- do this separately for mac, mvme147, mvme16x, sun3, q40 and sun3x

- move the six implementations into drivers/rtc as standalone drivers.

One (AFAIK) unsolved problem here is the question of how to handle
read_boot_clock/read_persistent_clock/update_persistent_clock in this
case. This is a really odd API that is implemented in various ways
on a few major architectures, and not at all on others, so it's all
highly inconsistent.

	Arnd

From - Thu Nov 08 21:38:48 2018
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Subject: Re: [PATCH 6/8] char/genrtc: parisc: use asm-generic/rtc.h
Date: Wed, 27 Apr 2016 13:21:16 +0200
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On Wednesday 27 April 2016 00:07:47 Rolf Eike Beer wrote:
> Arnd Bergmann wrote:
> > The asm-generic/rtc.h header can now be included by
> > architectures that provide their own set_rtc_time/get_rtc_time
> > macros, letting us remove most of the common contents in
> > the powerpc implementation.
> 
> parisc in this case.
> 

Fixed, thanks!

	Arnd

From - Thu Nov 08 21:38:48 2018
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Subject: Re: char: legacy RTC cleanups
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On Wednesday 27 April 2016 12:19:59 Geert Uytterhoeven wrote:
> >
> > Right, so we could skip patches 5 and 6, and instead remove the two
> > headers as we remove the driver. Let's see what the architecture
> > maintainers think about it, at least powerpc actually enables gen_rtc
> > in its defconfig, so it might take a while to move it over.
> 
> FWIW, all PPC defconfigs (except tqm8xx.dts, which is a more recent platform)
> enabling it did that long before my old commit to enable rtc-generic support
> on PPC:
> 
> commit bcd68a70cb0eee556d86d93133aa150319bd9f53
> Author: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
> Date:   Thu Feb 19 16:50:46 2009 +0100
> 
>     powerpc: Hook up rtc-generic, and kill rtc-ppc

Ah, interesting. I have two observations about that patch:

- you were moving basically in the opposite direction that I am
  trying to bring it now. ;-)

- I see now that four defconfigs (gamecube, powernv, pseries and wii)
  do enable RTC_DRV_GENERIC. For some reason, ppc64_defconfig only
  enables RTC_DRV_DS1307, I assume that is not intentional.

	Arnd
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From - Thu Nov 08 21:38:48 2018
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Subject: Re: [PATCH 6/8] char/genrtc: parisc: use asm-generic/rtc.h
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On Wednesday 27 April 2016 13:21:16 Arnd Bergmann wrote:
> On Wednesday 27 April 2016 00:07:47 Rolf Eike Beer wrote:
> > Arnd Bergmann wrote:
> > > The asm-generic/rtc.h header can now be included by
> > > architectures that provide their own set_rtc_time/get_rtc_time
> > > macros, letting us remove most of the common contents in
> > > the powerpc implementation.
> > 
> > parisc in this case.
> > 
> 
> Fixed, thanks!

Actually, after the comment about just removing the gen_rtc driver
in the long run, I checked again and found that PARISC unconditionally
selects RTC_CLASS, so this driver can't even be built here.
We should just remove the header and drop PARISC from the list.

If we also drop m68k, that just leaves powerpc.

	Arnd

From - Thu Nov 08 21:38:48 2018
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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 6/8] char/genrtc: parisc: use asm-generic/rtc.h
Date: Wed, 27 Apr 2016 13:55:43 +0200
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Cc: Rolf Eike Beer <eike-kernel@sf-tec.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Tony Luck <tony.luck@intel.com>,
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To: Arnd Bergmann <arnd@arndb.de>
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On Wed, Apr 27, 2016 at 1:35 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Wednesday 27 April 2016 13:21:16 Arnd Bergmann wrote:
>> On Wednesday 27 April 2016 00:07:47 Rolf Eike Beer wrote:
>> > Arnd Bergmann wrote:
>> > > The asm-generic/rtc.h header can now be included by
>> > > architectures that provide their own set_rtc_time/get_rtc_time
>> > > macros, letting us remove most of the common contents in
>> > > the powerpc implementation.
>> >
>> > parisc in this case.
>> >
>>
>> Fixed, thanks!
>
> Actually, after the comment about just removing the gen_rtc driver
> in the long run, I checked again and found that PARISC unconditionally
> selects RTC_CLASS, so this driver can't even be built here.
> We should just remove the header and drop PARISC from the list.
>
> If we also drop m68k, that just leaves powerpc.

I've just checked Debian's unofficial linux-image-4.5.0-1-m68k_4.5.1-1_m68k,
and it also enables RTC_CLASS and CONFIG_RTC_DRV_GENERIC, so gen_rtc
can be dropped on m68k for sure.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
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From - Thu Nov 08 21:38:48 2018
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Subject: Re: [PATCH 6/8] char/genrtc: parisc: use asm-generic/rtc.h
Date: Wed, 27 Apr 2016 14:44:34 +0200
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	Tony Luck <tony.luck@intel.com>,
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On Wednesday 27 April 2016 13:55:43 Geert Uytterhoeven wrote:
> On Wed, Apr 27, 2016 at 1:35 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> > On Wednesday 27 April 2016 13:21:16 Arnd Bergmann wrote:
> >> On Wednesday 27 April 2016 00:07:47 Rolf Eike Beer wrote:
> >> > Arnd Bergmann wrote:
> >> > > The asm-generic/rtc.h header can now be included by
> >> > > architectures that provide their own set_rtc_time/get_rtc_time
> >> > > macros, letting us remove most of the common contents in
> >> > > the powerpc implementation.
> >> >
> >> > parisc in this case.
> >> >
> >>
> >> Fixed, thanks!
> >
> > Actually, after the comment about just removing the gen_rtc driver
> > in the long run, I checked again and found that PARISC unconditionally
> > selects RTC_CLASS, so this driver can't even be built here.
> > We should just remove the header and drop PARISC from the list.
> >
> > If we also drop m68k, that just leaves powerpc.
> 
> I've just checked Debian's unofficial linux-image-4.5.0-1-m68k_4.5.1-1_m68k,
> and it also enables RTC_CLASS and CONFIG_RTC_DRV_GENERIC, so gen_rtc
> can be dropped on m68k for sure.

Ok, excellent. I'll try to rework the series then to completely eliminate
the driver (or leaving it ppc-only).

	Arnd
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Subject: Re: [PATCH] parisc: fix a bug when syscall number of tracee is
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On 27.04.2016 03:56, Dmitry V. Levin wrote:
> Do not load one entry beyond the end of the syscall table when the
> syscall number of a traced process equals to __NR_Linux_syscalls.
> Similar bug with regular processes was fixed by commit 3bb457af4fa8
> ("[PARISC] Fix bug when syscall nr is __NR_Linux_syscalls").
> 
> This bug was found by strace test suite.
> 
> Cc: stable@vger.kernel.org
> Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>

Acked-by: Helge Deller <deller@gmx.de>

Thanks!

Helge

> ---
>  arch/parisc/kernel/syscall.S | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> index c976ebf..57b4836 100644
> --- a/arch/parisc/kernel/syscall.S
> +++ b/arch/parisc/kernel/syscall.S
> @@ -344,7 +344,7 @@ tracesys_next:
>  #endif
>  
>  	cmpib,COND(=),n -1,%r20,tracesys_exit /* seccomp may have returned -1 */
> -	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
> +	comiclr,>>	__NR_Linux_syscalls, %r20, %r0
>  	b,n	.Ltracesys_nosys
>  
>  	LDREGX  %r20(%r19), %r19
> 

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From - Thu Nov 08 21:38:49 2018
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 07/16] rtc: parisc: provide rtc_class_ops directly
Date: Thu, 28 Apr 2016 00:34:21 +0200
Lines: 99
Approved: news@gmane.org
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
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To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26706>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and on pa-risc, that is implemented using an open-coded
version of rtc_time_to_tm/rtc_tm_to_time.

This changes the parisc rtc-generic device to provide its
rtc_class_ops directly, using the normal helper functions,
which makes this y2038 safe (on 32-bit) and simplifies
the implementation.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/parisc/kernel/time.c | 36 +++++++++++++++++++++++++++++++++++-
 drivers/rtc/rtc-generic.c |  3 +--
 2 files changed, 36 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 58dd6801f5be..744878789752 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -12,6 +12,7 @@
  */
 #include <linux/errno.h>
 #include <linux/module.h>
+#include <linux/rtc.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/param.h>
@@ -248,14 +249,47 @@ void __init start_cpu_itimer(void)
 	per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
+#if IS_ENABLED(CONFIG_RTC_DRV_GENERIC)
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	struct pdc_tod tod_data;
+
+	memset(tm, 0, sizeof(*tm));
+	if (pdc_tod_read(&tod_data) < 0)
+		return -EOPNOTSUPP;
+
+	/* we treat tod_sec as unsigned, so this can work until year 2106 */
+	rtc_time64_to_tm(tod_data.tod_sec, tm);
+	return rtc_valid_tm(tm);
+}
+
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	time64_t secs = rtc_tm_to_time64(tm);
+
+	if (pdc_tod_set(secs, 0) < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
+static const struct rtc_class_ops rtc_generic_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
+
 static int __init rtc_init(void)
 {
 	struct platform_device *pdev;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &rtc_generic_ops,
+					     sizeof(rtc_generic_ops));
+
 	return PTR_ERR_OR_ZERO(pdev);
 }
 device_initcall(rtc_init);
+#endif
 
 void read_persistent_clock(struct timespec *ts)
 {
diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
index 3958e87a05fa..92b5e02a3750 100644
--- a/drivers/rtc/rtc-generic.c
+++ b/drivers/rtc/rtc-generic.c
@@ -9,8 +9,7 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 
-#if defined(CONFIG_M68K) || defined(CONFIG_PARISC) || \
-    defined(CONFIG_PPC)
+#if defined(CONFIG_M68K) || defined(CONFIG_PPC)
 #include <asm/rtc.h>
 
 static int generic_get_time(struct device *dev, struct rtc_time *tm)
-- 
2.7.0

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From - Thu Nov 08 21:38:49 2018
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Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 04/16] rtc: sh: provide rtc_class_ops directly
Date: Thu, 28 Apr 2016 00:34:18 +0200
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Approved: news@gmane.org
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
	a.zummo@towertech.it, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/8556>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and on sh, that goes through another indirection using
the rtc_sh_get_time/rtc_sh_set_time functions.

This changes the sh rtc-generic device to provide its
rtc_class_ops directly, skipping one of the abstraction
levels.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/sh/include/asm/rtc.h | 11 -----------
 arch/sh/kernel/time.c     | 32 +++++++++++++++++++-------------
 drivers/rtc/rtc-generic.c |  2 +-
 3 files changed, 20 insertions(+), 25 deletions(-)

diff --git a/arch/sh/include/asm/rtc.h b/arch/sh/include/asm/rtc.h
index 52b0c2dba979..f7b010d48af7 100644
--- a/arch/sh/include/asm/rtc.h
+++ b/arch/sh/include/asm/rtc.h
@@ -6,17 +6,6 @@ extern void (*board_time_init)(void);
 extern void (*rtc_sh_get_time)(struct timespec *);
 extern int (*rtc_sh_set_time)(const time_t);
 
-/* some dummy definitions */
-#define RTC_BATT_BAD 0x100	/* battery bad */
-#define RTC_SQWE 0x08		/* enable square-wave output */
-#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
-#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
-
-struct rtc_time;
-unsigned int get_rtc_time(struct rtc_time *);
-int set_rtc_time(struct rtc_time *);
-
 #define RTC_CAP_4_DIGIT_YEAR	(1 << 0)
 
 struct sh_rtc_platform_info {
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index d6d0a986c6e9..92cd676970d9 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -50,27 +50,30 @@ int update_persistent_clock(struct timespec now)
 }
 #endif
 
-unsigned int get_rtc_time(struct rtc_time *tm)
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
 {
-	if (rtc_sh_get_time != null_rtc_get_time) {
-		struct timespec tv;
+	struct timespec tv;
 
-		rtc_sh_get_time(&tv);
-		rtc_time_to_tm(tv.tv_sec, tm);
-	}
-
-	return RTC_24H;
+	rtc_sh_get_time(&tv);
+	rtc_time_to_tm(tv.tv_sec, tm);
+	return 0;
 }
-EXPORT_SYMBOL(get_rtc_time);
 
-int set_rtc_time(struct rtc_time *tm)
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
 {
 	unsigned long secs;
 
 	rtc_tm_to_time(tm, &secs);
-	return rtc_sh_set_time(secs);
+	if (!rtc_sh_set_time || rtc_sh_set_time(secs) < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
 }
-EXPORT_SYMBOL(set_rtc_time);
+
+static const struct rtc_class_ops rtc_generic_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
 
 static int __init rtc_generic_init(void)
 {
@@ -79,7 +82,10 @@ static int __init rtc_generic_init(void)
 	if (rtc_sh_get_time == null_rtc_get_time)
 		return -ENODEV;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &rtc_generic_ops,
+					     sizeof(rtc_generic_ops));
+
 
 	return PTR_ERR_OR_ZERO(pdev);
 }
diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
index d726c6aa96a8..3958e87a05fa 100644
--- a/drivers/rtc/rtc-generic.c
+++ b/drivers/rtc/rtc-generic.c
@@ -10,7 +10,7 @@
 #include <linux/rtc.h>
 
 #if defined(CONFIG_M68K) || defined(CONFIG_PARISC) || \
-    defined(CONFIG_PPC) || defined(CONFIG_SUPERH32)
+    defined(CONFIG_PPC)
 #include <asm/rtc.h>
 
 static int generic_get_time(struct device *dev, struct rtc_time *tm)
-- 
2.7.0


From - Thu Nov 08 21:38:49 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 10/16] rtc: m68k: provide ioctl for q40
Date: Thu, 28 Apr 2016 00:34:24 +0200
Lines: 58
Approved: news@gmane.org
Message-ID: <1461796470-1291527-11-git-send-email-arnd@arndb.de>
References: <1461796470-1291527-1-git-send-email-arnd@arndb.de>
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
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To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2210015>

The q40 platform is the only machine in the kernel that provides
RTC_PLL_GET/RTC_PLL_SET ioctl commands in its rtc through the
mach_get_rtc_pll/mach_set_rtc_pll callbacks.

However, this currenctly works only in the old-style genrtc
driver, not the (somewhat) modern rtc-generic driver replacing
it. This adds an ioctl implementation to the m68k generic_rtc_ops
in order to let both drivers provide the same API.

After this, we should be able to remove support for genrtc
from the m68k architecture.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/m68k/kernel/time.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 80e024a10115..465423c07a92 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -100,7 +100,32 @@ static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
 	return 0;
 }
 
+static int rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
+{
+	struct rtc_pll_info pll;
+	struct rtc_pll_info __user *argp = (void __user *)arg;
+
+	switch (cmd) {
+	case RTC_PLL_GET:
+		if (!mach_get_rtc_pll || mach_get_rtc_pll(&pll))
+			return -EINVAL;
+		return copy_to_user(argp, &pll, sizeof pll) ? -EFAULT : 0;
+
+	case RTC_PLL_SET:
+		if (!mach_set_rtc_pll)
+			return -EINVAL;
+		if (!capable(CAP_SYS_TIME))
+			return -EACCES;
+		if (copy_from_user(&pll, argp, sizeof(pll)))
+			return -EFAULT;
+		return mach_set_rtc_pll(&pll);
+	}
+
+	return -ENOIOCTLCMD;
+}
+
 static const struct rtc_class_ops generic_rtc_ops = {
+	.ioctl = rtc_ioctl,
 	.read_time = rtc_generic_get_time,
 	.set_time = rtc_generic_set_time,
 };
-- 
2.7.0



From - Thu Nov 08 21:38:49 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 11/16] char/genrtc: remove m68k support
Date: Thu, 28 Apr 2016 00:34:25 +0200
Lines: 313
Approved: news@gmane.org
Message-ID: <1461796470-1291527-12-git-send-email-arnd@arndb.de>
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
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	linux-sh@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2210016>

The asm/rtc.h header is only used for the old gen_rtc driver
that has been replaced by rtc-generic. According to Geert
Uytterhoeven, nobody has used the old driver on m68k for
a long time, so we can now just remove the header file
and disallow the driver in Kconfig.

All files that used to include asm/rtc.h are now changed so
they include the headers that were used implicitly through
asm/rtc.h.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/m68k/amiga/config.c    |  1 -
 arch/m68k/apollo/config.c   |  1 -
 arch/m68k/bvme6000/config.c |  1 -
 arch/m68k/hp300/config.c    |  2 +-
 arch/m68k/include/asm/rtc.h | 79 ---------------------------------------------
 arch/m68k/mac/config.c      |  3 +-
 arch/m68k/mac/misc.c        |  1 -
 arch/m68k/mvme147/config.c  |  1 -
 arch/m68k/mvme16x/config.c  |  1 -
 arch/m68k/q40/config.c      |  2 +-
 arch/m68k/sun3/config.c     |  1 -
 arch/m68k/sun3/intersil.c   |  2 +-
 arch/m68k/sun3x/time.c      |  2 +-
 drivers/char/Kconfig        |  2 +-
 14 files changed, 7 insertions(+), 92 deletions(-)
 delete mode 100644 arch/m68k/include/asm/rtc.h

diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c
index 01693df7f2f6..ec9cc1fdd237 100644
--- a/arch/m68k/amiga/config.c
+++ b/arch/m68k/amiga/config.c
@@ -35,7 +35,6 @@
 #include <asm/amigahw.h>
 #include <asm/amigaints.h>
 #include <asm/irq.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 #include <asm/io.h>
 
diff --git a/arch/m68k/apollo/config.c b/arch/m68k/apollo/config.c
index 6e62d66c396e..432bc8bacfc2 100644
--- a/arch/m68k/apollo/config.c
+++ b/arch/m68k/apollo/config.c
@@ -15,7 +15,6 @@
 #include <asm/pgtable.h>
 #include <asm/apollohw.h>
 #include <asm/irq.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 
 u_long sio01_physaddr;
diff --git a/arch/m68k/bvme6000/config.c b/arch/m68k/bvme6000/config.c
index 478623dbb209..611d4d9ea2bd 100644
--- a/arch/m68k/bvme6000/config.c
+++ b/arch/m68k/bvme6000/config.c
@@ -34,7 +34,6 @@
 #include <asm/setup.h>
 #include <asm/irq.h>
 #include <asm/traps.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 #include <asm/bvme6000hw.h>
 
diff --git a/arch/m68k/hp300/config.c b/arch/m68k/hp300/config.c
index a9befe65adc4..7cfab158fb61 100644
--- a/arch/m68k/hp300/config.c
+++ b/arch/m68k/hp300/config.c
@@ -12,6 +12,7 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/console.h>
+#include <linux/rtc.h>
 
 #include <asm/bootinfo.h>
 #include <asm/bootinfo-hp300.h>
@@ -20,7 +21,6 @@
 #include <asm/blinken.h>
 #include <asm/io.h>                               /* readb() and writeb() */
 #include <asm/hp300hw.h>
-#include <asm/rtc.h>
 
 #include "time.h"
 
diff --git a/arch/m68k/include/asm/rtc.h b/arch/m68k/include/asm/rtc.h
deleted file mode 100644
index a4d08ea122ee..000000000000
--- a/arch/m68k/include/asm/rtc.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/* include/asm-m68k/rtc.h
- *
- * Copyright Richard Zidlicky
- * implementation details for genrtc/q40rtc driver
- */
-/* permission is hereby granted to copy, modify and redistribute this code
- * in terms of the GNU Library General Public License, Version 2 or later,
- * at your option.
- */
-
-#ifndef _ASM_RTC_H
-#define _ASM_RTC_H
-
-#ifdef __KERNEL__
-
-#include <linux/rtc.h>
-#include <asm/errno.h>
-#include <asm/machdep.h>
-
-#define RTC_PIE 0x40		/* periodic interrupt enable */
-#define RTC_AIE 0x20		/* alarm interrupt enable */
-#define RTC_UIE 0x10		/* update-finished interrupt enable */
-
-/* some dummy definitions */
-#define RTC_BATT_BAD 0x100	/* battery bad */
-#define RTC_SQWE 0x08		/* enable square-wave output */
-#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
-#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
-
-static inline unsigned int get_rtc_time(struct rtc_time *time)
-{
-	/*
-	 * Only the values that we read from the RTC are set. We leave
-	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
-	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
-	 * by the RTC when initially set to a non-zero value.
-	 */
-	if (mach_hwclk)
-		mach_hwclk(0, time);
-	return RTC_24H;
-}
-
-static inline int set_rtc_time(struct rtc_time *time)
-{
-	if (mach_hwclk)
-		return mach_hwclk(1, time);
-	return -EINVAL;
-}
-
-static inline unsigned int get_rtc_ss(void)
-{
-	if (mach_get_ss)
-		return mach_get_ss();
-	else{
-		struct rtc_time h;
-
-		get_rtc_time(&h);
-		return h.tm_sec;
-	}
-}
-
-static inline int get_rtc_pll(struct rtc_pll_info *pll)
-{
-	if (mach_get_rtc_pll)
-		return mach_get_rtc_pll(pll);
-	else
-		return -EINVAL;
-}
-static inline int set_rtc_pll(struct rtc_pll_info *pll)
-{
-	if (mach_set_rtc_pll)
-		return mach_set_rtc_pll(pll);
-	else
-		return -EINVAL;
-}
-#endif /* __KERNEL__ */
-
-#endif /* _ASM__RTC_H */
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index 689b47d292ac..2f33a33001e5 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -10,6 +10,7 @@
  * Miscellaneous linux stuff
  */
 
+#include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/mm.h>
@@ -25,6 +26,7 @@
 #include <linux/platform_device.h>
 #include <linux/adb.h>
 #include <linux/cuda.h>
+#include <linux/rtc.h>
 
 #include <asm/setup.h>
 #include <asm/bootinfo.h>
@@ -34,7 +36,6 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/pgtable.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 
 #include <asm/macintosh.h>
diff --git a/arch/m68k/mac/misc.c b/arch/m68k/mac/misc.c
index 707b61aea203..0fb54a90eac2 100644
--- a/arch/m68k/mac/misc.c
+++ b/arch/m68k/mac/misc.c
@@ -18,7 +18,6 @@
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
-#include <asm/rtc.h>
 #include <asm/segment.h>
 #include <asm/setup.h>
 #include <asm/macintosh.h>
diff --git a/arch/m68k/mvme147/config.c b/arch/m68k/mvme147/config.c
index e6a3b56c6481..c11d38dfad08 100644
--- a/arch/m68k/mvme147/config.c
+++ b/arch/m68k/mvme147/config.c
@@ -32,7 +32,6 @@
 #include <asm/setup.h>
 #include <asm/irq.h>
 #include <asm/traps.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 #include <asm/mvme147hw.h>
 
diff --git a/arch/m68k/mvme16x/config.c b/arch/m68k/mvme16x/config.c
index a53803cc66cd..58e240939d26 100644
--- a/arch/m68k/mvme16x/config.c
+++ b/arch/m68k/mvme16x/config.c
@@ -35,7 +35,6 @@
 #include <asm/setup.h>
 #include <asm/irq.h>
 #include <asm/traps.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 #include <asm/mvme16xhw.h>
 
diff --git a/arch/m68k/q40/config.c b/arch/m68k/q40/config.c
index e90fe903613e..fcb7f05b60b6 100644
--- a/arch/m68k/q40/config.c
+++ b/arch/m68k/q40/config.c
@@ -12,6 +12,7 @@
  * for more details.
  */
 
+#include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
@@ -27,7 +28,6 @@
 #include <linux/platform_device.h>
 
 #include <asm/io.h>
-#include <asm/rtc.h>
 #include <asm/bootinfo.h>
 #include <asm/pgtable.h>
 #include <asm/setup.h>
diff --git a/arch/m68k/sun3/config.c b/arch/m68k/sun3/config.c
index 71884bf01d72..3af34fa3a344 100644
--- a/arch/m68k/sun3/config.c
+++ b/arch/m68k/sun3/config.c
@@ -26,7 +26,6 @@
 #include <asm/pgalloc.h>
 #include <asm/sun3-head.h>
 #include <asm/sun3mmu.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 #include <asm/machines.h>
 #include <asm/idprom.h>
diff --git a/arch/m68k/sun3/intersil.c b/arch/m68k/sun3/intersil.c
index 889829e11f1d..2cd0bcbe6f30 100644
--- a/arch/m68k/sun3/intersil.c
+++ b/arch/m68k/sun3/intersil.c
@@ -14,8 +14,8 @@
 #include <linux/rtc.h>
 
 #include <asm/errno.h>
-#include <asm/rtc.h>
 #include <asm/intersil.h>
+#include <asm/machdep.h>
 
 
 /* bits to set for start/run of the intersil */
diff --git a/arch/m68k/sun3x/time.c b/arch/m68k/sun3x/time.c
index c8eb08add6b0..431d3c4306dd 100644
--- a/arch/m68k/sun3x/time.c
+++ b/arch/m68k/sun3x/time.c
@@ -15,10 +15,10 @@
 
 #include <asm/irq.h>
 #include <asm/io.h>
+#include <asm/machdep.h>
 #include <asm/traps.h>
 #include <asm/sun3x.h>
 #include <asm/sun3ints.h>
-#include <asm/rtc.h>
 
 #include "time.h"
 
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index abab6e565c60..26089feae9b0 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on M68K || PPC
+	depends on PPC
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
-- 
2.7.0



From - Thu Nov 08 21:38:49 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 01/16] rtc: cmos: remove empty asm/mc146818rtc.h files
Date: Thu, 28 Apr 2016 00:34:15 +0200
Lines: 106
Approved: news@gmane.org
Message-ID: <1461796470-1291527-2-git-send-email-arnd@arndb.de>
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
	a.zummo@towertech.it, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2210017>

Nothing on these architectures ever includes the asm/mc146818rtc.h
file, the drivers that used to do this have been fixed long ago,
and the remaining users are all PC-specific.

This removes the files for good.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---
 arch/frv/include/asm/mc146818rtc.h    | 16 ----------------
 arch/h8300/include/asm/mc146818rtc.h  |  9 ---------
 arch/ia64/include/asm/mc146818rtc.h   | 10 ----------
 arch/parisc/include/asm/mc146818rtc.h |  9 ---------
 arch/sh/include/asm/mc146818rtc.h     |  7 -------
 5 files changed, 51 deletions(-)
 delete mode 100644 arch/frv/include/asm/mc146818rtc.h
 delete mode 100644 arch/h8300/include/asm/mc146818rtc.h
 delete mode 100644 arch/ia64/include/asm/mc146818rtc.h
 delete mode 100644 arch/parisc/include/asm/mc146818rtc.h
 delete mode 100644 arch/sh/include/asm/mc146818rtc.h

diff --git a/arch/frv/include/asm/mc146818rtc.h b/arch/frv/include/asm/mc146818rtc.h
deleted file mode 100644
index 90dfb7a633d1..000000000000
--- a/arch/frv/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* mc146818rtc.h: RTC defs
- *
- * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-
-#endif /* _ASM_MC146818RTC_H */
diff --git a/arch/h8300/include/asm/mc146818rtc.h b/arch/h8300/include/asm/mc146818rtc.h
deleted file mode 100644
index ab9d9646d241..000000000000
--- a/arch/h8300/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _H8300_MC146818RTC_H
-#define _H8300_MC146818RTC_H
-
-/* empty include file to satisfy the include in genrtc.c/ide-geometry.c */
-
-#endif /* _H8300_MC146818RTC_H */
diff --git a/arch/ia64/include/asm/mc146818rtc.h b/arch/ia64/include/asm/mc146818rtc.h
deleted file mode 100644
index 407787a237ba..000000000000
--- a/arch/ia64/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _ASM_IA64_MC146818RTC_H
-#define _ASM_IA64_MC146818RTC_H
-
-/*
- * Machine dependent access functions for RTC registers.
- */
-
-/* empty include file to satisfy the include in genrtc.c */
-
-#endif /* _ASM_IA64_MC146818RTC_H */
diff --git a/arch/parisc/include/asm/mc146818rtc.h b/arch/parisc/include/asm/mc146818rtc.h
deleted file mode 100644
index adf41631449f..000000000000
--- a/arch/parisc/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-/* empty include file to satisfy the include in genrtc.c */
-
-#endif /* _ASM_MC146818RTC_H */
diff --git a/arch/sh/include/asm/mc146818rtc.h b/arch/sh/include/asm/mc146818rtc.h
deleted file mode 100644
index 0aee96a97330..000000000000
--- a/arch/sh/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-#endif /* _ASM_MC146818RTC_H */
-- 
2.7.0



From - Thu Nov 08 21:38:49 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 02/16] rtc: cmos: move mc146818rtc code out of asm-generic/rtc.h
Date: Thu, 28 Apr 2016 00:34:16 +0200
Lines: 567
Approved: news@gmane.org
Message-ID: <1461796470-1291527-3-git-send-email-arnd@arndb.de>
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NNTP-Posting-Date: Wed, 27 Apr 2016 22:36:34 +0000 (UTC)
Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
	a.zummo@towertech.it, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Original-X-From: linux-sh-owner@vger.kernel.org Thu Apr 28 00:36:31 2016
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/53869>

Drivers should not really include stuff from asm-generic directly,
and the PC-style cmos rtc driver does this in order to reuse the
mc146818 implementation of get_rtc_time/set_rtc_time rather than
the architecture specific one for the architecture it gets built for.

To make it more obvious what is going on, this moves and renames the
two functions into include/linux/mc146818rtc.h, which holds the
other mc146818 specific code. Ideally it would be in a .c file,
but that would require extra infrastructure as the functions are
called by multiple drivers with conflicting dependencies.

With this change, the asm-generic/rtc.h header also becomes much
more generic, so it can be reused more easily across any architecture
that still relies on the genrtc driver.

The only caller of the internal __get_rtc_time/__set_rtc_time
functions is in arch/alpha/kernel/rtc.c, and we just change those
over to the new naming.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---
 arch/alpha/kernel/rtc.c            |   6 +-
 arch/x86/include/asm/mc146818rtc.h |   1 -
 drivers/rtc/rtc-cmos.c             |  12 +--
 include/asm-generic/rtc.h          | 206 +------------------------------------
 include/linux/mc146818rtc.h        | 194 ++++++++++++++++++++++++++++++++++
 5 files changed, 207 insertions(+), 212 deletions(-)

diff --git a/arch/alpha/kernel/rtc.c b/arch/alpha/kernel/rtc.c
index f535a3fd0f60..ceed68c7500b 100644
--- a/arch/alpha/kernel/rtc.c
+++ b/arch/alpha/kernel/rtc.c
@@ -15,8 +15,6 @@
 #include <linux/rtc.h>
 #include <linux/platform_device.h>
 
-#include <asm/rtc.h>
-
 #include "proto.h"
 
 
@@ -81,7 +79,7 @@ init_rtc_epoch(void)
 static int
 alpha_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	__get_rtc_time(tm);
+	mc146818_get_time(tm);
 
 	/* Adjust for non-default epochs.  It's easier to depend on the
 	   generic __get_rtc_time and adjust the epoch here than create
@@ -112,7 +110,7 @@ alpha_rtc_set_time(struct device *dev, struct rtc_time *tm)
 		tm = &xtm;
 	}
 
-	return __set_rtc_time(tm);
+	return mc146818_set_time(tm);
 }
 
 static int
diff --git a/arch/x86/include/asm/mc146818rtc.h b/arch/x86/include/asm/mc146818rtc.h
index 0f555cc31984..24acd9ba7837 100644
--- a/arch/x86/include/asm/mc146818rtc.h
+++ b/arch/x86/include/asm/mc146818rtc.h
@@ -6,7 +6,6 @@
 
 #include <asm/io.h>
 #include <asm/processor.h>
-#include <linux/mc146818rtc.h>
 
 #ifndef RTC_PORT
 #define RTC_PORT(x)	(0x70 + (x))
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 84fb541038be..c7993f18edfa 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -43,7 +43,7 @@
 #include <linux/of_platform.h>
 
 /* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */
-#include <asm-generic/rtc.h>
+#include <linux/mc146818rtc.h>
 
 struct cmos_rtc {
 	struct rtc_device	*rtc;
@@ -190,10 +190,10 @@ static inline void cmos_write_bank2(unsigned char val, unsigned char addr)
 static int cmos_read_time(struct device *dev, struct rtc_time *t)
 {
 	/* REVISIT:  if the clock has a "century" register, use
-	 * that instead of the heuristic in get_rtc_time().
+	 * that instead of the heuristic in mc146818_get_time().
 	 * That'll make Y3K compatility (year > 2070) easy!
 	 */
-	get_rtc_time(t);
+	mc146818_get_time(t);
 	return 0;
 }
 
@@ -205,7 +205,7 @@ static int cmos_set_time(struct device *dev, struct rtc_time *t)
 	 * takes effect exactly 500ms after we write the register.
 	 * (Also queueing and other delays before we get this far.)
 	 */
-	return set_rtc_time(t);
+	return mc146818_set_time(t);
 }
 
 static int cmos_read_alarm(struct device *dev, struct rtc_wkalrm *t)
@@ -1142,14 +1142,14 @@ static __init void cmos_of_init(struct platform_device *pdev)
 	if (val)
 		CMOS_WRITE(be32_to_cpup(val), RTC_FREQ_SELECT);
 
-	get_rtc_time(&time);
+	cmos_read_time(&pdev->dev, &time);
 	ret = rtc_valid_tm(&time);
 	if (ret) {
 		struct rtc_time def_time = {
 			.tm_year = 1,
 			.tm_mday = 1,
 		};
-		set_rtc_time(&def_time);
+		cmos_set_time(&pdev->dev, &def_time);
 	}
 }
 #else
diff --git a/include/asm-generic/rtc.h b/include/asm-generic/rtc.h
index 4e3b6558331e..4fcff22cd707 100644
--- a/include/asm-generic/rtc.h
+++ b/include/asm-generic/rtc.h
@@ -12,12 +12,12 @@
 #ifndef __ASM_RTC_H__
 #define __ASM_RTC_H__
 
-#include <linux/mc146818rtc.h>
 #include <linux/rtc.h>
-#include <linux/bcd.h>
-#include <linux/delay.h>
-#ifdef CONFIG_ACPI
-#include <linux/acpi.h>
+
+#ifndef get_rtc_time
+#include <linux/mc146818rtc.h>
+#define get_rtc_time mc146818_get_time
+#define set_rtc_time mc146818_set_time
 #endif
 
 #define RTC_PIE 0x40		/* periodic interrupt enable */
@@ -31,202 +31,6 @@
 #define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
 #define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
 
-/*
- * Returns true if a clock update is in progress
- */
-static inline unsigned char rtc_is_updating(void)
-{
-	unsigned char uip;
-	unsigned long flags;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-	uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP);
-	spin_unlock_irqrestore(&rtc_lock, flags);
-	return uip;
-}
-
-static inline unsigned int __get_rtc_time(struct rtc_time *time)
-{
-	unsigned char ctrl;
-	unsigned long flags;
-	unsigned char century = 0;
-
-#ifdef CONFIG_MACH_DECSTATION
-	unsigned int real_year;
-#endif
-
-	/*
-	 * read RTC once any update in progress is done. The update
-	 * can take just over 2ms. We wait 20ms. There is no need to
-	 * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
-	 * If you need to know *exactly* when a second has started, enable
-	 * periodic update complete interrupts, (via ioctl) and then 
-	 * immediately read /dev/rtc which will block until you get the IRQ.
-	 * Once the read clears, read the RTC time (again via ioctl). Easy.
-	 */
-	if (rtc_is_updating())
-		mdelay(20);
-
-	/*
-	 * Only the values that we read from the RTC are set. We leave
-	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
-	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
-	 * by the RTC when initially set to a non-zero value.
-	 */
-	spin_lock_irqsave(&rtc_lock, flags);
-	time->tm_sec = CMOS_READ(RTC_SECONDS);
-	time->tm_min = CMOS_READ(RTC_MINUTES);
-	time->tm_hour = CMOS_READ(RTC_HOURS);
-	time->tm_mday = CMOS_READ(RTC_DAY_OF_MONTH);
-	time->tm_mon = CMOS_READ(RTC_MONTH);
-	time->tm_year = CMOS_READ(RTC_YEAR);
-#ifdef CONFIG_MACH_DECSTATION
-	real_year = CMOS_READ(RTC_DEC_YEAR);
-#endif
-#ifdef CONFIG_ACPI
-	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
-	    acpi_gbl_FADT.century)
-		century = CMOS_READ(acpi_gbl_FADT.century);
-#endif
-	ctrl = CMOS_READ(RTC_CONTROL);
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
-	{
-		time->tm_sec = bcd2bin(time->tm_sec);
-		time->tm_min = bcd2bin(time->tm_min);
-		time->tm_hour = bcd2bin(time->tm_hour);
-		time->tm_mday = bcd2bin(time->tm_mday);
-		time->tm_mon = bcd2bin(time->tm_mon);
-		time->tm_year = bcd2bin(time->tm_year);
-		century = bcd2bin(century);
-	}
-
-#ifdef CONFIG_MACH_DECSTATION
-	time->tm_year += real_year - 72;
-#endif
-
-	if (century)
-		time->tm_year += (century - 19) * 100;
-
-	/*
-	 * Account for differences between how the RTC uses the values
-	 * and how they are defined in a struct rtc_time;
-	 */
-	if (time->tm_year <= 69)
-		time->tm_year += 100;
-
-	time->tm_mon--;
-
-	return RTC_24H;
-}
-
-#ifndef get_rtc_time
-#define get_rtc_time	__get_rtc_time
-#endif
-
-/* Set the current date and time in the real time clock. */
-static inline int __set_rtc_time(struct rtc_time *time)
-{
-	unsigned long flags;
-	unsigned char mon, day, hrs, min, sec;
-	unsigned char save_control, save_freq_select;
-	unsigned int yrs;
-#ifdef CONFIG_MACH_DECSTATION
-	unsigned int real_yrs, leap_yr;
-#endif
-	unsigned char century = 0;
-
-	yrs = time->tm_year;
-	mon = time->tm_mon + 1;   /* tm_mon starts at zero */
-	day = time->tm_mday;
-	hrs = time->tm_hour;
-	min = time->tm_min;
-	sec = time->tm_sec;
-
-	if (yrs > 255)	/* They are unsigned */
-		return -EINVAL;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-#ifdef CONFIG_MACH_DECSTATION
-	real_yrs = yrs;
-	leap_yr = ((!((yrs + 1900) % 4) && ((yrs + 1900) % 100)) ||
-			!((yrs + 1900) % 400));
-	yrs = 72;
-
-	/*
-	 * We want to keep the year set to 73 until March
-	 * for non-leap years, so that Feb, 29th is handled
-	 * correctly.
-	 */
-	if (!leap_yr && mon < 3) {
-		real_yrs--;
-		yrs = 73;
-	}
-#endif
-
-#ifdef CONFIG_ACPI
-	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
-	    acpi_gbl_FADT.century) {
-		century = (yrs + 1900) / 100;
-		yrs %= 100;
-	}
-#endif
-
-	/* These limits and adjustments are independent of
-	 * whether the chip is in binary mode or not.
-	 */
-	if (yrs > 169) {
-		spin_unlock_irqrestore(&rtc_lock, flags);
-		return -EINVAL;
-	}
-
-	if (yrs >= 100)
-		yrs -= 100;
-
-	if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY)
-	    || RTC_ALWAYS_BCD) {
-		sec = bin2bcd(sec);
-		min = bin2bcd(min);
-		hrs = bin2bcd(hrs);
-		day = bin2bcd(day);
-		mon = bin2bcd(mon);
-		yrs = bin2bcd(yrs);
-		century = bin2bcd(century);
-	}
-
-	save_control = CMOS_READ(RTC_CONTROL);
-	CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
-	save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
-	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
-
-#ifdef CONFIG_MACH_DECSTATION
-	CMOS_WRITE(real_yrs, RTC_DEC_YEAR);
-#endif
-	CMOS_WRITE(yrs, RTC_YEAR);
-	CMOS_WRITE(mon, RTC_MONTH);
-	CMOS_WRITE(day, RTC_DAY_OF_MONTH);
-	CMOS_WRITE(hrs, RTC_HOURS);
-	CMOS_WRITE(min, RTC_MINUTES);
-	CMOS_WRITE(sec, RTC_SECONDS);
-#ifdef CONFIG_ACPI
-	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
-	    acpi_gbl_FADT.century)
-		CMOS_WRITE(century, acpi_gbl_FADT.century);
-#endif
-
-	CMOS_WRITE(save_control, RTC_CONTROL);
-	CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
-
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	return 0;
-}
-
-#ifndef set_rtc_time
-#define set_rtc_time	__set_rtc_time
-#endif
-
 static inline unsigned int get_rtc_ss(void)
 {
 	struct rtc_time h;
diff --git a/include/linux/mc146818rtc.h b/include/linux/mc146818rtc.h
index 433e0c74d643..e9e346b37846 100644
--- a/include/linux/mc146818rtc.h
+++ b/include/linux/mc146818rtc.h
@@ -14,6 +14,12 @@
 #include <asm/io.h>
 #include <linux/rtc.h>			/* get the user-level API */
 #include <asm/mc146818rtc.h>		/* register access macros */
+#include <linux/bcd.h>
+#include <linux/delay.h>
+
+#ifdef CONFIG_ACPI
+#include <linux/acpi.h>
+#endif
 
 #ifdef __KERNEL__
 #include <linux/spinlock.h>		/* spinlock_t */
@@ -120,4 +126,192 @@ struct cmos_rtc_board_info {
 #define RTC_IO_EXTENT_USED      RTC_IO_EXTENT
 #endif /* ARCH_RTC_LOCATION */
 
+/*
+ * Returns true if a clock update is in progress
+ */
+static inline unsigned char mc146818_is_updating(void)
+{
+	unsigned char uip;
+	unsigned long flags;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+	uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP);
+	spin_unlock_irqrestore(&rtc_lock, flags);
+	return uip;
+}
+
+static inline unsigned int mc146818_get_time(struct rtc_time *time)
+{
+	unsigned char ctrl;
+	unsigned long flags;
+	unsigned char century = 0;
+
+#ifdef CONFIG_MACH_DECSTATION
+	unsigned int real_year;
+#endif
+
+	/*
+	 * read RTC once any update in progress is done. The update
+	 * can take just over 2ms. We wait 20ms. There is no need to
+	 * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
+	 * If you need to know *exactly* when a second has started, enable
+	 * periodic update complete interrupts, (via ioctl) and then 
+	 * immediately read /dev/rtc which will block until you get the IRQ.
+	 * Once the read clears, read the RTC time (again via ioctl). Easy.
+	 */
+	if (mc146818_is_updating())
+		mdelay(20);
+
+	/*
+	 * Only the values that we read from the RTC are set. We leave
+	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
+	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
+	 * by the RTC when initially set to a non-zero value.
+	 */
+	spin_lock_irqsave(&rtc_lock, flags);
+	time->tm_sec = CMOS_READ(RTC_SECONDS);
+	time->tm_min = CMOS_READ(RTC_MINUTES);
+	time->tm_hour = CMOS_READ(RTC_HOURS);
+	time->tm_mday = CMOS_READ(RTC_DAY_OF_MONTH);
+	time->tm_mon = CMOS_READ(RTC_MONTH);
+	time->tm_year = CMOS_READ(RTC_YEAR);
+#ifdef CONFIG_MACH_DECSTATION
+	real_year = CMOS_READ(RTC_DEC_YEAR);
+#endif
+#ifdef CONFIG_ACPI
+	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
+	    acpi_gbl_FADT.century)
+		century = CMOS_READ(acpi_gbl_FADT.century);
+#endif
+	ctrl = CMOS_READ(RTC_CONTROL);
+	spin_unlock_irqrestore(&rtc_lock, flags);
+
+	if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
+	{
+		time->tm_sec = bcd2bin(time->tm_sec);
+		time->tm_min = bcd2bin(time->tm_min);
+		time->tm_hour = bcd2bin(time->tm_hour);
+		time->tm_mday = bcd2bin(time->tm_mday);
+		time->tm_mon = bcd2bin(time->tm_mon);
+		time->tm_year = bcd2bin(time->tm_year);
+		century = bcd2bin(century);
+	}
+
+#ifdef CONFIG_MACH_DECSTATION
+	time->tm_year += real_year - 72;
+#endif
+
+	if (century)
+		time->tm_year += (century - 19) * 100;
+
+	/*
+	 * Account for differences between how the RTC uses the values
+	 * and how they are defined in a struct rtc_time;
+	 */
+	if (time->tm_year <= 69)
+		time->tm_year += 100;
+
+	time->tm_mon--;
+
+	return RTC_24H;
+}
+
+/* Set the current date and time in the real time clock. */
+static inline int mc146818_set_time(struct rtc_time *time)
+{
+	unsigned long flags;
+	unsigned char mon, day, hrs, min, sec;
+	unsigned char save_control, save_freq_select;
+	unsigned int yrs;
+#ifdef CONFIG_MACH_DECSTATION
+	unsigned int real_yrs, leap_yr;
+#endif
+	unsigned char century = 0;
+
+	yrs = time->tm_year;
+	mon = time->tm_mon + 1;   /* tm_mon starts at zero */
+	day = time->tm_mday;
+	hrs = time->tm_hour;
+	min = time->tm_min;
+	sec = time->tm_sec;
+
+	if (yrs > 255)	/* They are unsigned */
+		return -EINVAL;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+#ifdef CONFIG_MACH_DECSTATION
+	real_yrs = yrs;
+	leap_yr = ((!((yrs + 1900) % 4) && ((yrs + 1900) % 100)) ||
+			!((yrs + 1900) % 400));
+	yrs = 72;
+
+	/*
+	 * We want to keep the year set to 73 until March
+	 * for non-leap years, so that Feb, 29th is handled
+	 * correctly.
+	 */
+	if (!leap_yr && mon < 3) {
+		real_yrs--;
+		yrs = 73;
+	}
+#endif
+
+#ifdef CONFIG_ACPI
+	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
+	    acpi_gbl_FADT.century) {
+		century = (yrs + 1900) / 100;
+		yrs %= 100;
+	}
+#endif
+
+	/* These limits and adjustments are independent of
+	 * whether the chip is in binary mode or not.
+	 */
+	if (yrs > 169) {
+		spin_unlock_irqrestore(&rtc_lock, flags);
+		return -EINVAL;
+	}
+
+	if (yrs >= 100)
+		yrs -= 100;
+
+	if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY)
+	    || RTC_ALWAYS_BCD) {
+		sec = bin2bcd(sec);
+		min = bin2bcd(min);
+		hrs = bin2bcd(hrs);
+		day = bin2bcd(day);
+		mon = bin2bcd(mon);
+		yrs = bin2bcd(yrs);
+		century = bin2bcd(century);
+	}
+
+	save_control = CMOS_READ(RTC_CONTROL);
+	CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
+	save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
+	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
+
+#ifdef CONFIG_MACH_DECSTATION
+	CMOS_WRITE(real_yrs, RTC_DEC_YEAR);
+#endif
+	CMOS_WRITE(yrs, RTC_YEAR);
+	CMOS_WRITE(mon, RTC_MONTH);
+	CMOS_WRITE(day, RTC_DAY_OF_MONTH);
+	CMOS_WRITE(hrs, RTC_HOURS);
+	CMOS_WRITE(min, RTC_MINUTES);
+	CMOS_WRITE(sec, RTC_SECONDS);
+#ifdef CONFIG_ACPI
+	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
+	    acpi_gbl_FADT.century)
+		CMOS_WRITE(century, acpi_gbl_FADT.century);
+#endif
+
+	CMOS_WRITE(save_control, RTC_CONTROL);
+	CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
+
+	spin_unlock_irqrestore(&rtc_lock, flags);
+
+	return 0;
+}
+
 #endif /* _MC146818RTC_H */
-- 
2.7.0

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From - Thu Nov 08 21:38:49 2018
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 15/16] char/genrtc: remove asm-generic/rtc.h from mips
Date: Thu, 28 Apr 2016 00:34:29 +0200
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
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arch/mips/sni/time.c includes asm-generic/rtc.h for no apparent reason,
and it works fine without that header, so lets remove the inclusion
in preparation of deleting the file.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/mips/sni/time.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c
index fb4b3520cdc6..7ee14f41fc25 100644
--- a/arch/mips/sni/time.c
+++ b/arch/mips/sni/time.c
@@ -8,7 +8,6 @@
 
 #include <asm/sni.h>
 #include <asm/time.h>
-#include <asm-generic/rtc.h>
 
 #define SNI_CLOCK_TICK_RATE	3686400
 #define SNI_COUNTER2_DIV	64
-- 
2.7.0

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From - Thu Nov 08 21:38:49 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 12/16] rtc: powerpc: provide rtc_class_ops directly
Date: Thu, 28 Apr 2016 00:34:26 +0200
Lines: 92
Approved: news@gmane.org
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
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To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/3685>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and powerpc has another abstraction on top, which is a bit
silly.

This changes the powerpc rtc-generic device to provide its
rtc_class_ops directly, to reduce the number of layers
by one.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/powerpc/kernel/time.c | 29 ++++++++++++++++++++++++++++-
 drivers/rtc/rtc-generic.c  |  2 +-
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 3ed9a5a21d77..7a482a7f4d8d 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -56,6 +56,7 @@
 #include <linux/irq_work.h>
 #include <linux/clk-provider.h>
 #include <linux/suspend.h>
+#include <linux/rtc.h>
 #include <asm/trace.h>
 
 #include <asm/io.h>
@@ -1081,6 +1082,29 @@ void calibrate_delay(void)
 	loops_per_jiffy = tb_ticks_per_jiffy;
 }
 
+#if IS_ENABLED(CONFIG_RTC_DRV_GENERIC)
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	ppc_md.get_rtc_time(tm);
+	return rtc_valid_tm(tm);
+}
+
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	if (!ppc_md.set_rtc_time)
+		return -EOPNOTSUPP;
+
+	if (ppc_md.set_rtc_time(tm) < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
+static const struct rtc_class_ops rtc_generic_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
+
 static int __init rtc_init(void)
 {
 	struct platform_device *pdev;
@@ -1088,9 +1112,12 @@ static int __init rtc_init(void)
 	if (!ppc_md.get_rtc_time)
 		return -ENODEV;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &rtc_generic_ops,
+					     sizeof(rtc_generic_ops));
 
 	return PTR_ERR_OR_ZERO(pdev);
 }
 
 device_initcall(rtc_init);
+#endif
diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
index 5c82bae73b9c..efcb9833cac8 100644
--- a/drivers/rtc/rtc-generic.c
+++ b/drivers/rtc/rtc-generic.c
@@ -9,7 +9,7 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 
-#if defined(CONFIG_PPC)
+#if 0
 #include <asm/rtc.h>
 
 static int generic_get_time(struct device *dev, struct rtc_time *tm)
-- 
2.7.0

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From - Thu Nov 08 21:38:49 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 03/16] char/genrtc: x86: remove remnants of asm/rtc.h
Date: Thu, 28 Apr 2016 00:34:17 +0200
Lines: 162
Approved: news@gmane.org
Message-ID: <1461796470-1291527-4-git-send-email-arnd@arndb.de>
References: <1461796470-1291527-1-git-send-email-arnd@arndb.de>
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
	a.zummo@towertech.it, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2210021>

Commit 3195ef59cb42 ("x86: Do full rtc synchronization with ntp") had
the side-effect of unconditionally enabling the RTC_LIB symbol on x86,
which in turn disables the selection of the CONFIG_RTC and
CONFIG_GEN_RTC drivers that contain a two older implementations of
the CONFIG_RTC_DRV_CMOS driver.

This removes x86 from the list for genrtc, and changes all references
to the asm/rtc.h header to instead point to the interfaces
from linux/mc146818rtc.h.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/x86/include/asm/rtc.h   | 1 -
 arch/x86/kernel/hpet.c       | 3 +--
 arch/x86/kernel/rtc.c        | 3 +--
 arch/x86/platform/efi/efi.c  | 1 -
 drivers/acpi/acpi_cmos_rtc.c | 2 +-
 drivers/base/power/trace.c   | 6 +++---
 drivers/char/Kconfig         | 2 +-
 drivers/rtc/rtc-mrst.c       | 2 +-
 8 files changed, 8 insertions(+), 12 deletions(-)
 delete mode 100644 arch/x86/include/asm/rtc.h

diff --git a/arch/x86/include/asm/rtc.h b/arch/x86/include/asm/rtc.h
deleted file mode 100644
index f71c3b0ed360..000000000000
--- a/arch/x86/include/asm/rtc.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/rtc.h>
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index f112af7aa62e..357900aad62c 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -1020,7 +1020,6 @@ void hpet_disable(void)
  */
 #include <linux/mc146818rtc.h>
 #include <linux/rtc.h>
-#include <asm/rtc.h>
 
 #define DEFAULT_RTC_INT_FREQ	64
 #define DEFAULT_RTC_SHIFT	6
@@ -1244,7 +1243,7 @@ irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
 	memset(&curr_time, 0, sizeof(struct rtc_time));
 
 	if (hpet_rtc_flags & (RTC_UIE | RTC_AIE))
-		get_rtc_time(&curr_time);
+		mc146818_set_time(&curr_time);
 
 	if (hpet_rtc_flags & RTC_UIE &&
 	    curr_time.tm_sec != hpet_prev_update_sec) {
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index eceaa082ec3f..79c6311cd912 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -13,7 +13,6 @@
 #include <asm/x86_init.h>
 #include <asm/time.h>
 #include <asm/intel-mid.h>
-#include <asm/rtc.h>
 #include <asm/setup.h>
 
 #ifdef CONFIG_X86_32
@@ -47,7 +46,7 @@ int mach_set_rtc_mmss(const struct timespec *now)
 
 	rtc_time_to_tm(nowtime, &tm);
 	if (!rtc_valid_tm(&tm)) {
-		retval = set_rtc_time(&tm);
+		retval = mc146818_set_time(&tm);
 		if (retval)
 			printk(KERN_ERR "%s: RTC write failed with error %d\n",
 			       __func__, retval);
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 994a7df84a7b..13b216f71191 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -51,7 +51,6 @@
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
 #include <asm/x86_init.h>
-#include <asm/rtc.h>
 #include <asm/uv/uv.h>
 
 #define EFI_DEBUG
diff --git a/drivers/acpi/acpi_cmos_rtc.c b/drivers/acpi/acpi_cmos_rtc.c
index 81dc75033f15..0980a133916f 100644
--- a/drivers/acpi/acpi_cmos_rtc.c
+++ b/drivers/acpi/acpi_cmos_rtc.c
@@ -14,7 +14,7 @@
 #include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <asm-generic/rtc.h>
+#include <linux/mc146818rtc.h>
 
 #include "internal.h"
 
diff --git a/drivers/base/power/trace.c b/drivers/base/power/trace.c
index a6975795e7f3..efec10b49d59 100644
--- a/drivers/base/power/trace.c
+++ b/drivers/base/power/trace.c
@@ -11,7 +11,7 @@
 #include <linux/export.h>
 #include <linux/rtc.h>
 
-#include <asm/rtc.h>
+#include <linux/mc146818rtc.h>
 
 #include "power.h"
 
@@ -103,7 +103,7 @@ static int set_magic_time(unsigned int user, unsigned int file, unsigned int dev
 	n /= 24;
 	time.tm_min = (n % 20) * 3;
 	n /= 20;
-	set_rtc_time(&time);
+	mc146818_set_time(&time);
 	return n ? -1 : 0;
 }
 
@@ -112,7 +112,7 @@ static unsigned int read_magic_time(void)
 	struct rtc_time time;
 	unsigned int val;
 
-	get_rtc_time(&time);
+	mc146818_get_time(&time);
 	pr_info("RTC time: %2d:%02d:%02d, date: %02d/%02d/%02d\n",
 		time.tm_hour, time.tm_min, time.tm_sec,
 		time.tm_mon + 1, time.tm_mday, time.tm_year % 100);
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index ca397384dc15..9bdb629fbaae 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on ALPHA || M68K || MN10300 || PARISC || PPC || X86
+	depends on ALPHA || M68K || MN10300 || PARISC || PPC
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c
index 548ea6f6f384..bb8ac7c5e217 100644
--- a/drivers/rtc/rtc-mrst.c
+++ b/drivers/rtc/rtc-mrst.c
@@ -32,11 +32,11 @@
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
 #include <linux/kernel.h>
+#include <linux/mc146818rtc.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/sfi.h>
 
-#include <asm-generic/rtc.h>
 #include <asm/intel_scu_ipc.h>
 #include <asm/intel-mid.h>
 #include <asm/intel_mid_vrtc.h>
-- 
2.7.0



From - Thu Nov 08 21:38:49 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 08/16] char/genrtc: remove parisc support
Date: Thu, 28 Apr 2016 00:34:22 +0200
Lines: 147
Approved: news@gmane.org
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
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To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Xref: news.gmane.org gmane.linux.ports.parisc:26715 gmane.linux.ports.alpha:3687 gmane.linux.kernel:2210022 gmane.linux.ports.ppc64.devel:126518 gmane.linux.ports.sh.devel:53873 gmane.linux.kernel.cross-arch:31799
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26715>

This architecture selects RTC_CLASS unconditionally, so the GEN_RTC
has not worked here for a long time.

Now we can remove both the asm/rtc.h header and the Kconfig dependency
for CONFIG_GEN_RTC.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/parisc/include/asm/rtc.h | 131 ------------------------------------------
 drivers/char/Kconfig          |   2 +-
 2 files changed, 1 insertion(+), 132 deletions(-)
 delete mode 100644 arch/parisc/include/asm/rtc.h

diff --git a/arch/parisc/include/asm/rtc.h b/arch/parisc/include/asm/rtc.h
deleted file mode 100644
index 099d641a42c2..000000000000
--- a/arch/parisc/include/asm/rtc.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/* 
- * include/asm-parisc/rtc.h
- *
- * Copyright 2002 Randolph CHung <tausq@debian.org>
- *
- * Based on: include/asm-ppc/rtc.h and the genrtc driver in the
- * 2.4 parisc linux tree
- */
-
-#ifndef __ASM_RTC_H__
-#define __ASM_RTC_H__
-
-#ifdef __KERNEL__
-
-#include <linux/rtc.h>
-
-#include <asm/pdc.h>
-
-#define SECS_PER_HOUR   (60 * 60)
-#define SECS_PER_DAY    (SECS_PER_HOUR * 24)
-
-
-#define RTC_PIE 0x40		/* periodic interrupt enable */
-#define RTC_AIE 0x20		/* alarm interrupt enable */
-#define RTC_UIE 0x10		/* update-finished interrupt enable */
-
-#define RTC_BATT_BAD 0x100	/* battery bad */
-
-/* some dummy definitions */
-#define RTC_SQWE 0x08		/* enable square-wave output */
-#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
-#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
-
-# define __isleap(year) \
-  ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
-
-/* How many days come before each month (0-12).  */
-static const unsigned short int __mon_yday[2][13] =
-{
-	/* Normal years.  */
-	{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
-	/* Leap years.  */
-	{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
-};
-
-static inline unsigned int get_rtc_time(struct rtc_time *wtime)
-{
-	struct pdc_tod tod_data;
-	long int days, rem, y;
-	const unsigned short int *ip;
-
-	memset(wtime, 0, sizeof(*wtime));
-	if (pdc_tod_read(&tod_data) < 0)
-		return RTC_24H | RTC_BATT_BAD;
-
-	// most of the remainder of this function is:
-//	Copyright (C) 1991, 1993, 1997, 1998 Free Software Foundation, Inc.
-//	This was originally a part of the GNU C Library.
-//      It is distributed under the GPL, and was swiped from offtime.c
-
-
-	days = tod_data.tod_sec / SECS_PER_DAY;
-	rem = tod_data.tod_sec % SECS_PER_DAY;
-
-	wtime->tm_hour = rem / SECS_PER_HOUR;
-	rem %= SECS_PER_HOUR;
-	wtime->tm_min = rem / 60;
-	wtime->tm_sec = rem % 60;
-
-	y = 1970;
-
-#define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
-#define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400))
-
-	while (days < 0 || days >= (__isleap (y) ? 366 : 365))
-	{
-		/* Guess a corrected year, assuming 365 days per year.  */
-		long int yg = y + days / 365 - (days % 365 < 0);
-
-		/* Adjust DAYS and Y to match the guessed year.  */
-		days -= ((yg - y) * 365
-			 + LEAPS_THRU_END_OF (yg - 1)
-			 - LEAPS_THRU_END_OF (y - 1));
-		y = yg;
-	}
-	wtime->tm_year = y - 1900;
-
-	ip = __mon_yday[__isleap(y)];
-	for (y = 11; days < (long int) ip[y]; --y)
-		continue;
-	days -= ip[y];
-	wtime->tm_mon = y;
-	wtime->tm_mday = days + 1;
-
-	return RTC_24H;
-}
-
-static int set_rtc_time(struct rtc_time *wtime)
-{
-	u_int32_t secs;
-
-	secs = mktime(wtime->tm_year + 1900, wtime->tm_mon + 1, wtime->tm_mday, 
-		      wtime->tm_hour, wtime->tm_min, wtime->tm_sec);
-
-	if(pdc_tod_set(secs, 0) < 0)
-		return -1;
-	else
-		return 0;
-
-}
-
-static inline unsigned int get_rtc_ss(void)
-{
-	struct rtc_time h;
-
-	get_rtc_time(&h);
-	return h.tm_sec;
-}
-
-static inline int get_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-static inline int set_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}

From - Thu Nov 08 21:38:49 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 16/16] char/genrtc: remove the rest of the driver
Date: Thu, 28 Apr 2016 00:34:30 +0200
Lines: 673
Approved: news@gmane.org
Message-ID: <1461796470-1291527-17-git-send-email-arnd@arndb.de>
References: <1461796470-1291527-1-git-send-email-arnd@arndb.de>
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NNTP-Posting-Date: Wed, 27 Apr 2016 22:38:32 +0000 (UTC)
Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
	a.zummo@towertech.it, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Xref: news.gmane.org gmane.linux.ports.sh.devel:53874 gmane.linux.ports.alpha:3688 gmane.linux.kernel:2210023 gmane.linux.ports.parisc:26716 gmane.linux.ports.ppc64.devel:126519 gmane.linux.kernel.cross-arch:31800
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/53874>

No architecture uses the genrtc driver any more, so let's kill it off
for good. This now also includes asm-generic/rtc.h, which is otherwise
completely unused.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/char/Kconfig      |  26 ---
 drivers/char/Makefile     |   1 -
 drivers/char/genrtc.c     | 539 ----------------------------------------------
 include/asm-generic/rtc.h |  51 -----
 4 files changed, 617 deletions(-)
 delete mode 100644 drivers/char/genrtc.c
 delete mode 100644 include/asm-generic/rtc.h

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index a81f0eb9f71e..0d40fbd21c26 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -325,32 +325,6 @@ config JS_RTC
 	  To compile this driver as a module, choose M here: the
 	  module will be called js-rtc.
 
-config OLD_GEN_RTC
-	tristate "Generic /dev/rtc emulation"
-	depends on RTC!=y
-	depends on BROKEN
-	---help---
-	  If you say Y here and create a character special file /dev/rtc with
-	  major number 10 and minor number 135 using mknod ("man mknod"), you
-	  will get access to the real time clock (or hardware clock) built
-	  into your computer.
-
-	  It reports status information via the file /proc/driver/rtc and its
-	  behaviour is set by various ioctls on /dev/rtc. If you enable the
-	  "extended RTC operation" below it will also provide an emulation
-	  for RTC_UIE which is required by some programs and may improve
-	  precision in some cases.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called genrtc.
-
-config GEN_RTC_X
-	bool "Extended RTC operation"
-	depends on GEN_RTC
-	help
-	  Provides an emulation for RTC_UIE which is required by some programs
-	  and may improve precision of the generic RTC support in some cases.
-
 config EFI_RTC
 	bool "EFI Real Time Clock Services"
 	depends on IA64
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index fc0905aa7373..f33f5e35df9c 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -25,7 +25,6 @@ obj-$(CONFIG_APPLICOM)		+= applicom.o
 obj-$(CONFIG_SONYPI)		+= sonypi.o
 obj-$(CONFIG_RTC)		+= rtc.o
 obj-$(CONFIG_HPET)		+= hpet.o
-obj-$(CONFIG_OLD_GEN_RTC)	+= genrtc.o
 obj-$(CONFIG_EFI_RTC)		+= efirtc.o
 obj-$(CONFIG_DS1302)		+= ds1302.o
 obj-$(CONFIG_XILINX_HWICAP)	+= xilinx_hwicap/
diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
deleted file mode 100644
index 4f943759d376..000000000000
--- a/drivers/char/genrtc.c
+++ /dev/null
@@ -1,539 +0,0 @@
-/*
- *	Real Time Clock interface for
- *		- q40 and other m68k machines,
- *		- HP PARISC machines
- *		- PowerPC machines
- *      emulate some RTC irq capabilities in software
- *
- *      Copyright (C) 1999 Richard Zidlicky
- *
- *	based on Paul Gortmaker's rtc.c device and
- *           Sam Creasey Generic rtc driver
- *
- *	This driver allows use of the real time clock (built into
- *	nearly all computers) from user space. It exports the /dev/rtc
- *	interface supporting various ioctl() and also the /proc/driver/rtc
- *	pseudo-file for status information.
- *
- *	The ioctls can be used to set the interrupt behaviour where
- *	supported.
- *
- *	The /dev/rtc interface will block on reads until an interrupt
- *	has been received. If a RTC interrupt has already happened,
- *	it will output an unsigned long and then block. The output value
- *	contains the interrupt status in the low byte and the number of
- *	interrupts since the last read in the remaining high bytes. The
- *	/dev/rtc interface can also be used with the select(2) call.
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
- *
-
- *      1.01 fix for 2.3.X                    rz@linux-m68k.org
- *      1.02 merged with code from genrtc.c   rz@linux-m68k.org
- *      1.03 make it more portable            zippel@linux-m68k.org
- *      1.04 removed useless timer code       rz@linux-m68k.org
- *      1.05 portable RTC_UIE emulation       rz@linux-m68k.org
- *      1.06 set_rtc_time can return an error trini@kernel.crashing.org
- *      1.07 ported to HP PARISC (hppa)	      Helge Deller <deller@gmx.de>
- */
-
-#define RTC_VERSION	"1.07"
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/miscdevice.h>
-#include <linux/fcntl.h>
-
-#include <linux/rtc.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/mutex.h>
-#include <linux/workqueue.h>
-
-#include <asm/uaccess.h>
-#include <asm/rtc.h>
-
-/*
- *	We sponge a minor off of the misc major. No need slurping
- *	up another valuable major dev number for this. If you add
- *	an ioctl, make sure you don't conflict with SPARC's RTC
- *	ioctls.
- */
-
-static DEFINE_MUTEX(gen_rtc_mutex);
-static DECLARE_WAIT_QUEUE_HEAD(gen_rtc_wait);
-
-/*
- *	Bits in gen_rtc_status.
- */
-
-#define RTC_IS_OPEN		0x01	/* means /dev/rtc is in use	*/
-
-static unsigned char gen_rtc_status;	/* bitmapped status byte.	*/
-static unsigned long gen_rtc_irq_data;	/* our output to the world	*/
-
-/* months start at 0 now */
-static unsigned char days_in_mo[] =
-{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
-
-static int irq_active;
-
-#ifdef CONFIG_GEN_RTC_X
-static struct work_struct genrtc_task;
-static struct timer_list timer_task;
-
-static unsigned int oldsecs;
-static int lostint;
-static unsigned long tt_exp;
-
-static void gen_rtc_timer(unsigned long data);
-
-static volatile int stask_active;              /* schedule_work */
-static volatile int ttask_active;              /* timer_task */
-static int stop_rtc_timers;                    /* don't requeue tasks */
-static DEFINE_SPINLOCK(gen_rtc_lock);
-
-static void gen_rtc_interrupt(unsigned long arg);
-
-/*
- * Routine to poll RTC seconds field for change as often as possible,
- * after first RTC_UIE use timer to reduce polling
- */
-static void genrtc_troutine(struct work_struct *work)
-{
-	unsigned int tmp = get_rtc_ss();
-	
-	if (stop_rtc_timers) {
-		stask_active = 0;
-		return;
-	}
-
-	if (oldsecs != tmp){
-		oldsecs = tmp;
-
-		timer_task.function = gen_rtc_timer;
-		timer_task.expires = jiffies + HZ - (HZ/10);
-		tt_exp=timer_task.expires;
-		ttask_active=1;
-		stask_active=0;
-		add_timer(&timer_task);
-
-		gen_rtc_interrupt(0);
-	} else if (schedule_work(&genrtc_task) == 0)
-		stask_active = 0;
-}
-
-static void gen_rtc_timer(unsigned long data)
-{
-	lostint = get_rtc_ss() - oldsecs ;
-	if (lostint<0) 
-		lostint = 60 - lostint;
-	if (time_after(jiffies, tt_exp))
-		printk(KERN_INFO "genrtc: timer task delayed by %ld jiffies\n",
-		       jiffies-tt_exp);
-	ttask_active=0;
-	stask_active=1;
-	if ((schedule_work(&genrtc_task) == 0))
-		stask_active = 0;
-}
-
-/* 
- * call gen_rtc_interrupt function to signal an RTC_UIE,
- * arg is unused.
- * Could be invoked either from a real interrupt handler or
- * from some routine that periodically (eg 100HZ) monitors
- * whether RTC_SECS changed
- */
-static void gen_rtc_interrupt(unsigned long arg)
-{
-	/*  We store the status in the low byte and the number of
-	 *	interrupts received since the last read in the remainder
-	 *	of rtc_irq_data.  */
-
-	gen_rtc_irq_data += 0x100;
-	gen_rtc_irq_data &= ~0xff;
-	gen_rtc_irq_data |= RTC_UIE;
-
-	if (lostint){
-		printk("genrtc: system delaying clock ticks?\n");
-		/* increment count so that userspace knows something is wrong */
-		gen_rtc_irq_data += ((lostint-1)<<8);
-		lostint = 0;
-	}
-
-	wake_up_interruptible(&gen_rtc_wait);
-}
-
-/*
- *	Now all the various file operations that we export.
- */
-static ssize_t gen_rtc_read(struct file *file, char __user *buf,
-			size_t count, loff_t *ppos)
-{
-	unsigned long data;
-	ssize_t retval;
-
-	if (count != sizeof (unsigned int) && count != sizeof (unsigned long))
-		return -EINVAL;
-
-	if (file->f_flags & O_NONBLOCK && !gen_rtc_irq_data)
-		return -EAGAIN;
-
-	retval = wait_event_interruptible(gen_rtc_wait,
-			(data = xchg(&gen_rtc_irq_data, 0)));
-	if (retval)
-		goto out;
-
-	/* first test allows optimizer to nuke this case for 32-bit machines */
-	if (sizeof (int) != sizeof (long) && count == sizeof (unsigned int)) {
-		unsigned int uidata = data;
-		retval = put_user(uidata, (unsigned int __user *)buf) ?:
-			sizeof(unsigned int);
-	}
-	else {
-		retval = put_user(data, (unsigned long __user *)buf) ?:
-			sizeof(unsigned long);
-	}
-out:
-	return retval;
-}
-
-static unsigned int gen_rtc_poll(struct file *file,
-				 struct poll_table_struct *wait)
-{
-	poll_wait(file, &gen_rtc_wait, wait);
-	if (gen_rtc_irq_data != 0)
-		return POLLIN | POLLRDNORM;
-	return 0;
-}
-
-#endif
-
-/*
- * Used to disable/enable interrupts, only RTC_UIE supported
- * We also clear out any old irq data after an ioctl() that
- * meddles with the interrupt enable/disable bits.
- */
-
-static inline void gen_clear_rtc_irq_bit(unsigned char bit)
-{
-#ifdef CONFIG_GEN_RTC_X
-	stop_rtc_timers = 1;
-	if (ttask_active){
-		del_timer_sync(&timer_task);
-		ttask_active = 0;
-	}
-	while (stask_active)
-		schedule();
-
-	spin_lock(&gen_rtc_lock);
-	irq_active = 0;
-	spin_unlock(&gen_rtc_lock);
-#endif
-}
-
-static inline int gen_set_rtc_irq_bit(unsigned char bit)
-{
-#ifdef CONFIG_GEN_RTC_X
-	spin_lock(&gen_rtc_lock);
-	if ( !irq_active ) {
-		irq_active = 1;
-		stop_rtc_timers = 0;
-		lostint = 0;
-		INIT_WORK(&genrtc_task, genrtc_troutine);
-		oldsecs = get_rtc_ss();
-		init_timer(&timer_task);
-
-		stask_active = 1;
-		if (schedule_work(&genrtc_task) == 0){
-			stask_active = 0;
-		}
-	}
-	spin_unlock(&gen_rtc_lock);
-	gen_rtc_irq_data = 0;
-	return 0;
-#else
-	return -EINVAL;
-#endif
-}
-
-static int gen_rtc_ioctl(struct file *file,
-			 unsigned int cmd, unsigned long arg)
-{
-	struct rtc_time wtime;
-	struct rtc_pll_info pll;
-	void __user *argp = (void __user *)arg;
-
-	switch (cmd) {
-
-	case RTC_PLL_GET:
-	    if (get_rtc_pll(&pll))
-	 	    return -EINVAL;
-	    else
-		    return copy_to_user(argp, &pll, sizeof pll) ? -EFAULT : 0;
-
-	case RTC_PLL_SET:
-		if (!capable(CAP_SYS_TIME))
-			return -EACCES;
-		if (copy_from_user(&pll, argp, sizeof(pll)))
-			return -EFAULT;
-	    return set_rtc_pll(&pll);
-
-	case RTC_UIE_OFF:	/* disable ints from RTC updates.	*/
-		gen_clear_rtc_irq_bit(RTC_UIE);
-		return 0;
-
-	case RTC_UIE_ON:	/* enable ints for RTC updates.	*/
-	        return gen_set_rtc_irq_bit(RTC_UIE);
-
-	case RTC_RD_TIME:	/* Read the time/date from RTC	*/
-		/* this doesn't get week-day, who cares */
-		memset(&wtime, 0, sizeof(wtime));
-		get_rtc_time(&wtime);
-
-		return copy_to_user(argp, &wtime, sizeof(wtime)) ? -EFAULT : 0;
-
-	case RTC_SET_TIME:	/* Set the RTC */
-	    {
-		int year;
-		unsigned char leap_yr;
-
-		if (!capable(CAP_SYS_TIME))
-			return -EACCES;
-
-		if (copy_from_user(&wtime, argp, sizeof(wtime)))
-			return -EFAULT;
-
-		year = wtime.tm_year + 1900;
-		leap_yr = ((!(year % 4) && (year % 100)) ||
-			   !(year % 400));
-
-		if ((wtime.tm_mon < 0 || wtime.tm_mon > 11) || (wtime.tm_mday < 1))
-			return -EINVAL;
-
-		if (wtime.tm_mday < 0 || wtime.tm_mday >
-		    (days_in_mo[wtime.tm_mon] + ((wtime.tm_mon == 1) && leap_yr)))
-			return -EINVAL;
-
-		if (wtime.tm_hour < 0 || wtime.tm_hour >= 24 ||
-		    wtime.tm_min < 0 || wtime.tm_min >= 60 ||
-		    wtime.tm_sec < 0 || wtime.tm_sec >= 60)
-			return -EINVAL;
-
-		return set_rtc_time(&wtime);
-	    }
-	}
-
-	return -EINVAL;
-}
-
-static long gen_rtc_unlocked_ioctl(struct file *file, unsigned int cmd,
-				   unsigned long arg)
-{
-	int ret;
-
-	mutex_lock(&gen_rtc_mutex);
-	ret = gen_rtc_ioctl(file, cmd, arg);
-	mutex_unlock(&gen_rtc_mutex);
-
-	return ret;
-}
-
-/*
- *	We enforce only one user at a time here with the open/close.
- *	Also clear the previous interrupt data on an open, and clean
- *	up things on a close.
- */
-
-static int gen_rtc_open(struct inode *inode, struct file *file)
-{
-	mutex_lock(&gen_rtc_mutex);
-	if (gen_rtc_status & RTC_IS_OPEN) {
-		mutex_unlock(&gen_rtc_mutex);
-		return -EBUSY;
-	}
-
-	gen_rtc_status |= RTC_IS_OPEN;
-	gen_rtc_irq_data = 0;
-	irq_active = 0;
-	mutex_unlock(&gen_rtc_mutex);
-
-	return 0;
-}
-
-static int gen_rtc_release(struct inode *inode, struct file *file)
-{
-	/*
-	 * Turn off all interrupts once the device is no longer
-	 * in use and clear the data.
-	 */
-
-	gen_clear_rtc_irq_bit(RTC_PIE|RTC_AIE|RTC_UIE);
-
-	gen_rtc_status &= ~RTC_IS_OPEN;
-	return 0;
-}
-
-
-#ifdef CONFIG_PROC_FS
-
-/*
- *	Info exported via "/proc/driver/rtc".
- */
-
-static int gen_rtc_proc_show(struct seq_file *m, void *v)
-{
-	struct rtc_time tm;
-	unsigned int flags;
-	struct rtc_pll_info pll;
-
-	flags = get_rtc_time(&tm);
-
-	seq_printf(m,
-		     "rtc_time\t: %02d:%02d:%02d\n"
-		     "rtc_date\t: %04d-%02d-%02d\n"
-		     "rtc_epoch\t: %04u\n",
-		     tm.tm_hour, tm.tm_min, tm.tm_sec,
-		     tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, 1900);
-
-	tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
-
-	seq_puts(m, "alarm\t\t: ");
-	if (tm.tm_hour <= 24)
-		seq_printf(m, "%02d:", tm.tm_hour);
-	else
-		seq_puts(m, "**:");
-
-	if (tm.tm_min <= 59)
-		seq_printf(m, "%02d:", tm.tm_min);
-	else
-		seq_puts(m, "**:");
-
-	if (tm.tm_sec <= 59)
-		seq_printf(m, "%02d\n", tm.tm_sec);
-	else
-		seq_puts(m, "**\n");
-
-	seq_printf(m,
-		     "DST_enable\t: %s\n"
-		     "BCD\t\t: %s\n"
-		     "24hr\t\t: %s\n"
-		     "square_wave\t: %s\n"
-		     "alarm_IRQ\t: %s\n"
-		     "update_IRQ\t: %s\n"
-		     "periodic_IRQ\t: %s\n"
-		     "periodic_freq\t: %ld\n"
-		     "batt_status\t: %s\n",
-		     (flags & RTC_DST_EN) ? "yes" : "no",
-		     (flags & RTC_DM_BINARY) ? "no" : "yes",
-		     (flags & RTC_24H) ? "yes" : "no",
-		     (flags & RTC_SQWE) ? "yes" : "no",
-		     (flags & RTC_AIE) ? "yes" : "no",
-		     irq_active ? "yes" : "no",
-		     (flags & RTC_PIE) ? "yes" : "no",
-		     0L /* freq */,
-		     (flags & RTC_BATT_BAD) ? "bad" : "okay");
-	if (!get_rtc_pll(&pll))
-	    seq_printf(m,
-			 "PLL adjustment\t: %d\n"
-			 "PLL max +ve adjustment\t: %d\n"
-			 "PLL max -ve adjustment\t: %d\n"
-			 "PLL +ve adjustment factor\t: %d\n"
-			 "PLL -ve adjustment factor\t: %d\n"
-			 "PLL frequency\t: %ld\n",
-			 pll.pll_value,
-			 pll.pll_max,
-			 pll.pll_min,
-			 pll.pll_posmult,
-			 pll.pll_negmult,
-			 pll.pll_clock);
-	return 0;
-}
-
-static int gen_rtc_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, gen_rtc_proc_show, NULL);
-}
-
-static const struct file_operations gen_rtc_proc_fops = {
-	.open		= gen_rtc_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-static int __init gen_rtc_proc_init(void)
-{
-	struct proc_dir_entry *r;
-
-	r = proc_create("driver/rtc", 0, NULL, &gen_rtc_proc_fops);
-	if (!r)
-		return -ENOMEM;
-	return 0;
-}
-#else
-static inline int gen_rtc_proc_init(void) { return 0; }
-#endif /* CONFIG_PROC_FS */
-
-
-/*
- *	The various file operations we support.
- */
-
-static const struct file_operations gen_rtc_fops = {
-	.owner		= THIS_MODULE,
-#ifdef CONFIG_GEN_RTC_X
-	.read		= gen_rtc_read,
-	.poll		= gen_rtc_poll,
-#endif
-	.unlocked_ioctl	= gen_rtc_unlocked_ioctl,
-	.open		= gen_rtc_open,
-	.release	= gen_rtc_release,
-	.llseek		= noop_llseek,
-};
-
-static struct miscdevice rtc_gen_dev =
-{
-	.minor		= RTC_MINOR,
-	.name		= "rtc",
-	.fops		= &gen_rtc_fops,
-};
-
-static int __init rtc_generic_init(void)
-{
-	int retval;
-
-	printk(KERN_INFO "Generic RTC Driver v%s\n", RTC_VERSION);
-
-	retval = misc_register(&rtc_gen_dev);
-	if (retval < 0)
-		return retval;
-
-	retval = gen_rtc_proc_init();
-	if (retval) {
-		misc_deregister(&rtc_gen_dev);
-		return retval;
-	}
-
-	return 0;
-}
-
-static void __exit rtc_generic_exit(void)
-{
-	remove_proc_entry ("driver/rtc", NULL);
-	misc_deregister(&rtc_gen_dev);
-}
-
-
-module_init(rtc_generic_init);
-module_exit(rtc_generic_exit);
-
-MODULE_AUTHOR("Richard Zidlicky");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(RTC_MINOR);
diff --git a/include/asm-generic/rtc.h b/include/asm-generic/rtc.h
deleted file mode 100644
index 4fcff22cd707..000000000000
--- a/include/asm-generic/rtc.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/* 
- * include/asm-generic/rtc.h
- *
- * Author: Tom Rini <trini@mvista.com>
- *
- * Based on:
- * drivers/char/rtc.c
- *
- * Please read the COPYING file for all license details.
- */
-
-#ifndef __ASM_RTC_H__
-#define __ASM_RTC_H__
-
-#include <linux/rtc.h>
-
-#ifndef get_rtc_time
-#include <linux/mc146818rtc.h>
-#define get_rtc_time mc146818_get_time
-#define set_rtc_time mc146818_set_time
-#endif
-
-#define RTC_PIE 0x40		/* periodic interrupt enable */
-#define RTC_AIE 0x20		/* alarm interrupt enable */
-#define RTC_UIE 0x10		/* update-finished interrupt enable */
-
-/* some dummy definitions */
-#define RTC_BATT_BAD 0x100	/* battery bad */
-#define RTC_SQWE 0x08		/* enable square-wave output */
-#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
-#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
-
-static inline unsigned int get_rtc_ss(void)
-{
-	struct rtc_time h;
-
-	get_rtc_time(&h);
-	return h.tm_sec;
-}
-
-static inline int get_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-static inline int set_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-
-#endif /* __ASM_RTC_H__ */
-- 
2.7.0

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From: Arnd Bergmann <arnd@arndb.de>
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Subject: [PATCH v3 14/16] rtc: generic: remove get_rtc_time/set_rtc_time wrappers
Date: Thu, 28 Apr 2016 00:34:28 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/53875>

All architectures using this driver are now converted to
provide their own operations, so this one can be turned
into a trivial stub driver relying on its platform data.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/rtc/rtc-generic.c | 35 +----------------------------------
 1 file changed, 1 insertion(+), 34 deletions(-)

diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
index efcb9833cac8..1bf5d2347928 100644
--- a/drivers/rtc/rtc-generic.c
+++ b/drivers/rtc/rtc-generic.c
@@ -9,43 +9,10 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 
-#if 0
-#include <asm/rtc.h>
-
-static int generic_get_time(struct device *dev, struct rtc_time *tm)
-{
-	unsigned int ret = get_rtc_time(tm);
-
-	if (ret & RTC_BATT_BAD)
-		return -EOPNOTSUPP;
-
-	return rtc_valid_tm(tm);
-}
-
-static int generic_set_time(struct device *dev, struct rtc_time *tm)
-{
-	if (set_rtc_time(tm) < 0)
-		return -EOPNOTSUPP;
-
-	return 0;
-}
-
-static const struct rtc_class_ops generic_rtc_ops = {
-	.read_time = generic_get_time,
-	.set_time = generic_set_time,
-};
-#else
-#define generic_rtc_ops *(struct rtc_class_ops*)NULL
-#endif
-
 static int __init generic_rtc_probe(struct platform_device *dev)
 {
 	struct rtc_device *rtc;
-	const struct rtc_class_ops *ops;
-
-	ops = dev_get_platdata(&dev->dev);
-	if (!ops)
-		ops = &generic_rtc_ops;
+	const struct rtc_class_ops *ops = dev_get_platdata(&dev->dev);
 
 	rtc = devm_rtc_device_register(&dev->dev, "rtc-generic",
 					ops, THIS_MODULE);
-- 
2.7.0

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From - Thu Nov 08 21:38:49 2018
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 05/16] char/genrtc: remove alpha support
Date: Thu, 28 Apr 2016 00:34:19 +0200
Lines: 54
Approved: news@gmane.org
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
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To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2210028>

The genrtc driver serves no purpose on Alpha because it drives the
same hardware as the original rtc.c driver, and the newer rtc-generic.c
or rtc-cmos.c drivers on architectures that use the asm-generic/rtc.h
header.

The defconfig uses CONFIG_RTC=y, so this driver is not used by default.
At one point it was used to abstract a quirk for the "Marvel" platform,
but it does not do this any more after the code was moved into yet
another driver in arch/alpha/kernel/rtc.c.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/alpha/include/asm/rtc.h    | 1 -
 arch/alpha/kernel/core_marvel.c | 1 -
 drivers/char/Kconfig            | 2 +-
 3 files changed, 1 insertion(+), 3 deletions(-)
 delete mode 100644 arch/alpha/include/asm/rtc.h

diff --git a/arch/alpha/include/asm/rtc.h b/arch/alpha/include/asm/rtc.h
deleted file mode 100644
index f71c3b0ed360..000000000000
--- a/arch/alpha/include/asm/rtc.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/rtc.h>
diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c
index 53dd2f1a53aa..d5f0580746a5 100644
--- a/arch/alpha/kernel/core_marvel.c
+++ b/arch/alpha/kernel/core_marvel.c
@@ -24,7 +24,6 @@
 #include <asm/gct.h>
 #include <asm/pgalloc.h>
 #include <asm/tlbflush.h>
-#include <asm/rtc.h>
 #include <asm/vga.h>
 
 #include "proto.h"
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 9bdb629fbaae..697510325b1d 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on ALPHA || M68K || MN10300 || PARISC || PPC
+	depends on M68K || MN10300 || PARISC || PPC
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
-- 
2.7.0



From - Thu Nov 08 21:38:49 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 13/16] char/genrtc: remove powerpc support
Date: Thu, 28 Apr 2016 00:34:27 +0200
Lines: 173
Approved: news@gmane.org
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
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To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/8567>

PowerPC is the last architecture using the GEN_RTC driver on some
machines, but we can migrate them all to using the RTC_DRV_GENERIC
driver instead now.

This moves over the CONFIG_GEN_RTC option from drivers/char into
arch/powerpc/platforms/Kconfig and makes it just select the
replacement driver instead, for the only reason of not breaking
existing defconfig and .config files that users may have.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/powerpc/include/asm/rtc.h    | 78 ---------------------------------------
 arch/powerpc/platforms/Kconfig    | 11 ++++++
 arch/powerpc/platforms/ps3/time.c |  2 +-
 drivers/char/Kconfig              |  4 +-
 drivers/char/Makefile             |  2 +-
 5 files changed, 15 insertions(+), 82 deletions(-)
 delete mode 100644 arch/powerpc/include/asm/rtc.h

diff --git a/arch/powerpc/include/asm/rtc.h b/arch/powerpc/include/asm/rtc.h
deleted file mode 100644
index f5802926b6c0..000000000000
--- a/arch/powerpc/include/asm/rtc.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Real-time clock definitions and interfaces
- *
- * Author: Tom Rini <trini@mvista.com>
- *
- * 2002 (c) MontaVista, Software, Inc.  This file is licensed under
- * the terms of the GNU General Public License version 2.  This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Based on:
- * include/asm-m68k/rtc.h
- *
- * Copyright Richard Zidlicky
- * implementation details for genrtc/q40rtc driver
- *
- * And the old drivers/macintosh/rtc.c which was heavily based on:
- * Linux/SPARC Real Time Clock Driver
- * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu)
- *
- * With additional work by Paul Mackerras and Franz Sirl.
- */
-
-#ifndef __ASM_POWERPC_RTC_H__
-#define __ASM_POWERPC_RTC_H__
-
-#ifdef __KERNEL__
-
-#include <linux/rtc.h>
-
-#include <asm/machdep.h>
-#include <asm/time.h>
-
-#define RTC_PIE 0x40		/* periodic interrupt enable */
-#define RTC_AIE 0x20		/* alarm interrupt enable */
-#define RTC_UIE 0x10		/* update-finished interrupt enable */
-
-/* some dummy definitions */
-#define RTC_BATT_BAD 0x100	/* battery bad */
-#define RTC_SQWE 0x08		/* enable square-wave output */
-#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
-#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
-
-static inline unsigned int get_rtc_time(struct rtc_time *time)
-{
-	if (ppc_md.get_rtc_time)
-		ppc_md.get_rtc_time(time);
-	return RTC_24H;
-}
-
-/* Set the current date and time in the real time clock. */
-static inline int set_rtc_time(struct rtc_time *time)
-{
-	if (ppc_md.set_rtc_time)
-		return ppc_md.set_rtc_time(time);
-	return -EINVAL;
-}
-
-static inline unsigned int get_rtc_ss(void)
-{
-	struct rtc_time h;
-
-	get_rtc_time(&h);
-	return h.tm_sec;
-}
-
-static inline int get_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-static inline int set_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-
-#endif /* __KERNEL__ */
-#endif /* __ASM_POWERPC_RTC_H__ */
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 46a3533d3acb..657243ffb525 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -321,6 +321,17 @@ config OF_RTC
 	  Uses information from the OF or flattened device tree to instantiate
 	  platform devices for direct mapped RTC chips like the DS1742 or DS1743.
 
+config GEN_RTC
+	bool "Use the platform RTC operations from user space"
+	select RTC_CLASS
+	select RTC_DRV_GENERIC
+	help
+	  This option provides backwards compatibility with the old gen_rtc.ko
+	  module that was traditionally used for old PowerPC machines.
+	  Platforms should migrate to enabling the RTC_DRV_GENERIC by hand
+	  replacing changing their get_rtc_time/set_rtc_time callbacks with
+	  a proper RTC device driver.
+
 config SIMPLE_GPIO
 	bool "Support for simple, memory-mapped GPIO controllers"
 	depends on PPC
diff --git a/arch/powerpc/platforms/ps3/time.c b/arch/powerpc/platforms/ps3/time.c
index 791c6142c4a7..11b45b58c81b 100644
--- a/arch/powerpc/platforms/ps3/time.c
+++ b/arch/powerpc/platforms/ps3/time.c
@@ -20,9 +20,9 @@
 
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
+#include <linux/rtc.h>
 
 #include <asm/firmware.h>
-#include <asm/rtc.h>
 #include <asm/lv1call.h>
 #include <asm/ps3.h>
 
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 26089feae9b0..a81f0eb9f71e 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -325,10 +325,10 @@ config JS_RTC
 	  To compile this driver as a module, choose M here: the
 	  module will be called js-rtc.
 
-config GEN_RTC
+config OLD_GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on PPC
+	depends on BROKEN
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index d8a7579300d2..fc0905aa7373 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -25,7 +25,7 @@ obj-$(CONFIG_APPLICOM)		+= applicom.o
 obj-$(CONFIG_SONYPI)		+= sonypi.o
 obj-$(CONFIG_RTC)		+= rtc.o
 obj-$(CONFIG_HPET)		+= hpet.o
-obj-$(CONFIG_GEN_RTC)		+= genrtc.o
+obj-$(CONFIG_OLD_GEN_RTC)	+= genrtc.o
 obj-$(CONFIG_EFI_RTC)		+= efirtc.o
 obj-$(CONFIG_DS1302)		+= ds1302.o
 obj-$(CONFIG_XILINX_HWICAP)	+= xilinx_hwicap/
-- 
2.7.0


From - Thu Nov 08 21:38:49 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 06/16] char/genrtc: remove mn10300 support
Date: Thu, 28 Apr 2016 00:34:20 +0200
Lines: 67
Approved: news@gmane.org
Message-ID: <1461796470-1291527-7-git-send-email-arnd@arndb.de>
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
	a.zummo@towertech.it, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Original-X-From: linux-sh-owner@vger.kernel.org Thu Apr 28 00:41:26 2016
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/53878>

The genrtc driver serves no purpose on mn10300 because it drives the
same hardware as the original rtc.c driver, and the newer rtc-generic.c
or rtc-cmos.c drivers on architectures that use the asm-generic/rtc.h
header.

I assume it was initially only added for completeness when the
mn10300 port was done, but the older rtc.c driver was always used
instead.

We can also stop include asm-generic/rtc.h now, because we
just call mc146818_set_time() directly.

It would be nice to change the architecture to use the rtc-cmos driver
next, and remove support for the old rtc driver as well.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/mn10300/include/asm/rtc.h | 2 --
 arch/mn10300/kernel/rtc.c      | 2 +-
 drivers/char/Kconfig           | 2 +-
 3 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/mn10300/include/asm/rtc.h b/arch/mn10300/include/asm/rtc.h
index 6c14bb1d0d9b..07dc87656197 100644
--- a/arch/mn10300/include/asm/rtc.h
+++ b/arch/mn10300/include/asm/rtc.h
@@ -25,6 +25,4 @@ static inline void calibrate_clock(void)
 
 #endif /* !CONFIG_MN10300_RTC */
 
-#include <asm-generic/rtc.h>
-
 #endif /* _ASM_RTC_H */
diff --git a/arch/mn10300/kernel/rtc.c b/arch/mn10300/kernel/rtc.c
index 48d7058b3295..77e0be4d92ea 100644
--- a/arch/mn10300/kernel/rtc.c
+++ b/arch/mn10300/kernel/rtc.c
@@ -27,7 +27,7 @@ void read_persistent_clock(struct timespec *ts)
 {
 	struct rtc_time tm;
 
-	get_rtc_time(&tm);
+	mc146818_set_time(&tm);
 
 	ts->tv_nsec = 0;
 	ts->tv_sec = mktime(tm.tm_year, tm.tm_mon, tm.tm_mday,
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 697510325b1d..d17ed90ebc82 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on M68K || MN10300 || PARISC || PPC
+	depends on M68K || PARISC || PPC
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
-- 
2.7.0

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From - Thu Nov 08 21:38:50 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 00/16] genrtc removal
Date: Thu, 28 Apr 2016 00:34:14 +0200
Lines: 79
Approved: news@gmane.org
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Cc: geert@linux-m68k.org, deller@gmx.de, benh@kernel.crashing.org,
	mpe@ellerman.id.au, dalias@libc.org, dhowells@redhat.com,
	linux-alpha@vger.kernel.org, a.zummo@towertech.it,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
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	linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/8571>

I ended up stuffing the two patch series into one, as they are now
more dependent on one another. This now thoroughly removes the
genrtc driver including the asm/rtc.h headers it uses. For all
architectures that still have a meaningful asm/rtc.h, this goes
through two stages:

1) make the rtc-generic implementation independent of asm/rtc.h
2) remove the asm/rtc.h header and disallow the gen_rtc driver

As the last step, the driver itself gets removed.

	Arnd

 arch/alpha/include/asm/rtc.h          |   1 -
 arch/alpha/kernel/core_marvel.c       |   1 -
 arch/alpha/kernel/rtc.c               |   6 +-
 arch/frv/include/asm/mc146818rtc.h    |  16 -
 arch/h8300/include/asm/mc146818rtc.h  |   9 -
 arch/ia64/include/asm/mc146818rtc.h   |  10 -
 arch/m68k/amiga/config.c              |   1 -
 arch/m68k/apollo/config.c             |   1 -
 arch/m68k/bvme6000/config.c           |   1 -
 arch/m68k/hp300/config.c              |   2 +-
 arch/m68k/include/asm/rtc.h           |  79 -----
 arch/m68k/kernel/time.c               |  49 +++-
 arch/m68k/mac/config.c                |   3 +-
 arch/m68k/mac/misc.c                  |   1 -
 arch/m68k/mvme147/config.c            |   1 -
 arch/m68k/mvme16x/config.c            |   1 -
 arch/m68k/q40/config.c                |   2 +-
 arch/m68k/sun3/config.c               |   1 -
 arch/m68k/sun3/intersil.c             |   2 +-
 arch/m68k/sun3x/time.c                |   2 +-
 arch/mips/sni/time.c                  |   1 -
 arch/mn10300/include/asm/rtc.h        |   2 -
 arch/mn10300/kernel/rtc.c             |   2 +-
 arch/parisc/include/asm/mc146818rtc.h |   9 -
 arch/parisc/include/asm/rtc.h         | 131 ---------
 arch/parisc/kernel/time.c             |  36 ++-
 arch/powerpc/include/asm/rtc.h        |  78 -----
 arch/powerpc/kernel/time.c            |  29 +-
 arch/powerpc/platforms/Kconfig        |  11 +
 arch/powerpc/platforms/ps3/time.c     |   2 +-
 arch/sh/include/asm/mc146818rtc.h     |   7 -
 arch/sh/include/asm/rtc.h             |  11 -
 arch/sh/kernel/time.c                 |  32 +-
 arch/x86/include/asm/mc146818rtc.h    |   1 -
 arch/x86/include/asm/rtc.h            |   1 -
 arch/x86/kernel/hpet.c                |   3 +-
 arch/x86/kernel/rtc.c                 |   3 +-
 arch/x86/platform/efi/efi.c           |   1 -
 drivers/acpi/acpi_cmos_rtc.c          |   2 +-
 drivers/base/power/trace.c            |   6 +-
 drivers/char/Kconfig                  |  26 --
 drivers/char/Makefile                 |   1 -
 drivers/char/genrtc.c                 | 539 ----------------------------------
 drivers/rtc/rtc-cmos.c                |  12 +-
 drivers/rtc/rtc-generic.c             |  36 +--
 drivers/rtc/rtc-mrst.c                |   2 +-
 include/asm-generic/rtc.h             | 247 ----------------
 include/linux/mc146818rtc.h           | 194 ++++++++++++
 48 files changed, 358 insertions(+), 1256 deletions(-)

 [PATCH v3 01/16] rtc: cmos: remove empty asm/mc146818rtc.h files
 [PATCH v3 02/16] rtc: cmos: move mc146818rtc code out of
 [PATCH v3 03/16] char/genrtc: x86: remove remnants of asm/rtc.h
 [PATCH v3 04/16] rtc: sh: provide rtc_class_ops directly
 [PATCH v3 05/16] char/genrtc: remove alpha support
 [PATCH v3 06/16] char/genrtc: remove mn10300 support
 [PATCH v3 07/16] rtc: parisc: provide rtc_class_ops directly
 [PATCH v3 08/16] char/genrtc: remove parisc support
 [PATCH v3 09/16] rtc: m68k: provide rtc_class_ops directly
 [PATCH v3 10/16] rtc: m68k: provide ioctl for q40
 [PATCH v3 11/16] char/genrtc: remove m68k support
 [PATCH v3 12/16] rtc: powerpc: provide rtc_class_ops directly
 [PATCH v3 13/16] char/genrtc: remove powerpc support
 [PATCH v3 14/16] rtc: generic: remove get_rtc_time/set_rtc_time
 [PATCH v3 15/16] char/genrtc: remove asm-generic/rtc.h from mips
 [PATCH v3 16/16] char/genrtc: remove the rest of the driver

From - Thu Nov 08 21:38:50 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: [PATCH v3 09/16] rtc: m68k: provide rtc_class_ops directly
Date: Thu, 28 Apr 2016 00:34:23 +0200
Lines: 73
Approved: news@gmane.org
Message-ID: <1461796470-1291527-10-git-send-email-arnd@arndb.de>
References: <1461796470-1291527-1-git-send-email-arnd@arndb.de>
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Cc: Arnd Bergmann <arnd@arndb.de>, geert@linux-m68k.org, deller@gmx.de,
	benh@kernel.crashing.org, mpe@ellerman.id.au, dalias@libc.org,
	dhowells@redhat.com, linux-alpha@vger.kernel.org,
	a.zummo@towertech.it, linux-kernel@vger.kernel.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	rtc-linux@googlegroups.com, linux-arch@vger.kernel.org
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Original-X-From: linux-arch-owner@vger.kernel.org Thu Apr 28 00:52:06 2016
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/31806>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and m68k has another abstraction on top, which is a bit
silly.

This changes the m68k rtc-generic device to provide its
rtc_class_ops directly, to reduce the number of layers
by one.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/m68k/kernel/time.c   | 24 ++++++++++++++++++++++--
 drivers/rtc/rtc-generic.c |  2 +-
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 3857737e3958..80e024a10115 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -86,7 +86,24 @@ void read_persistent_clock(struct timespec *ts)
 	}
 }
 
-#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
+#if defined(CONFIG_ARCH_USES_GETTIMEOFFSET) && IS_ENABLED(CONFIG_RTC_DRV_GENERIC)
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	mach_hwclk(0, tm);
+	return rtc_valid_tm(tm);
+}
+
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	if (mach_hwclk(1, tm) < 0)
+		return -EOPNOTSUPP;
+	return 0;
+}
+
+static const struct rtc_class_ops generic_rtc_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
 
 static int __init rtc_init(void)
 {
@@ -95,7 +112,10 @@ static int __init rtc_init(void)
 	if (!mach_hwclk)
 		return -ENODEV;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	/* or just call devm_rtc_device_register instead? */
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &generic_rtc_ops,
+					     sizeof(generic_rtc_ops));
 	return PTR_ERR_OR_ZERO(pdev);
 }
 
diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
index 92b5e02a3750..5c82bae73b9c 100644
--- a/drivers/rtc/rtc-generic.c
+++ b/drivers/rtc/rtc-generic.c
@@ -9,7 +9,7 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 
-#if defined(CONFIG_M68K) || defined(CONFIG_PPC)
+#if defined(CONFIG_PPC)
 #include <asm/rtc.h>
 
 static int generic_get_time(struct device *dev, struct rtc_time *tm)
-- 
2.7.0


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On Thursday 28 April 2016 00:34:23 Arnd Bergmann wrote:
>                 return -ENODEV;
>  
> -       pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
> +       /* or just call devm_rtc_device_register instead? */

Oops, I was planning to remove the comment here.

I probably have to do a v4 anyway, fixed it up locally now.

	Arnd

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Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 04/16] rtc: sh: provide rtc_class_ops directly
Date: Wed, 27 Apr 2016 19:21:22 -0400
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On Thu, Apr 28, 2016 at 12:34:18AM +0200, Arnd Bergmann wrote:
> The rtc-generic driver provides an architecture specific
> wrapper on top of the generic rtc_class_ops abstraction,
> and on sh, that goes through another indirection using
> the rtc_sh_get_time/rtc_sh_set_time functions.
> 
> This changes the sh rtc-generic device to provide its
> rtc_class_ops directly, skipping one of the abstraction
> levels.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Looks ok in principle. Have you tested that it builds? Some questions
inline:

> ---
>  arch/sh/include/asm/rtc.h | 11 -----------
>  arch/sh/kernel/time.c     | 32 +++++++++++++++++++-------------
>  drivers/rtc/rtc-generic.c |  2 +-
>  3 files changed, 20 insertions(+), 25 deletions(-)
> 
> diff --git a/arch/sh/include/asm/rtc.h b/arch/sh/include/asm/rtc.h
> index 52b0c2dba979..f7b010d48af7 100644
> --- a/arch/sh/include/asm/rtc.h
> +++ b/arch/sh/include/asm/rtc.h
> @@ -6,17 +6,6 @@ extern void (*board_time_init)(void);
>  extern void (*rtc_sh_get_time)(struct timespec *);
>  extern int (*rtc_sh_set_time)(const time_t);
>  
> -/* some dummy definitions */
> -#define RTC_BATT_BAD 0x100	/* battery bad */
> -#define RTC_SQWE 0x08		/* enable square-wave output */
> -#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
> -#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
> -#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
> -
> -struct rtc_time;
> -unsigned int get_rtc_time(struct rtc_time *);
> -int set_rtc_time(struct rtc_time *);
> -
>  #define RTC_CAP_4_DIGIT_YEAR	(1 << 0)
>  
>  struct sh_rtc_platform_info {
> diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
> index d6d0a986c6e9..92cd676970d9 100644
> --- a/arch/sh/kernel/time.c
> +++ b/arch/sh/kernel/time.c
> @@ -50,27 +50,30 @@ int update_persistent_clock(struct timespec now)
>  }
>  #endif
>  
> -unsigned int get_rtc_time(struct rtc_time *tm)
> +static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
>  {
> -	if (rtc_sh_get_time != null_rtc_get_time) {

This seems like a functional change -- whereas previously the
null_rtc_get_time case left *tm unchanged, now the function gets
called and junk gets filled in. Is that desired?

> -		struct timespec tv;
> +	struct timespec tv;
>  
> -		rtc_sh_get_time(&tv);
> -		rtc_time_to_tm(tv.tv_sec, tm);
> -	}
> -
> -	return RTC_24H;
> +	rtc_sh_get_time(&tv);
> +	rtc_time_to_tm(tv.tv_sec, tm);
> +	return 0;

Also the return value is changed. Is this correct?

>  }
> -EXPORT_SYMBOL(get_rtc_time);
>  
> -int set_rtc_time(struct rtc_time *tm)
> +static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
>  {
>  	unsigned long secs;
>  
>  	rtc_tm_to_time(tm, &secs);
> -	return rtc_sh_set_time(secs);
> +	if (!rtc_sh_set_time || rtc_sh_set_time(secs) < 0)
> +		return -EOPNOTSUPP;
> +
> +	return 0;
>  }
> -EXPORT_SYMBOL(set_rtc_time);

Why checking rtc_sh_set_time for a null pointer? null_rtc_set_time is
not a null pointer but a dummy function that's always safe to call, I
think.

> +
> +static const struct rtc_class_ops rtc_generic_ops = {
> +	.read_time = rtc_generic_get_time,
> +	.set_time = rtc_generic_set_time,
> +};
>  
>  static int __init rtc_generic_init(void)
>  {
> @@ -79,7 +82,10 @@ static int __init rtc_generic_init(void)
>  	if (rtc_sh_get_time == null_rtc_get_time)
>  		return -ENODEV;
>  
> -	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
> +	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
> +					     &rtc_generic_ops,
> +					     sizeof(rtc_generic_ops));
> +

Not a complaint about your patch, but I'd like to get rid of this
platform device and abstraction layer completely since it doesn't seem
like something that can be modeled correctly in device tree. When
you're done cleaning this up, will it be possible to just have rtc
drivers that use whatever generic framework is left, where the right
driver is automatically attached to compatible DT nodes? I'm trying to
move all of arch/sh over to device tree and remove hard-coded platform
devices.

Rich

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Subject: Re: [PATCH v3 04/16] rtc: sh: provide rtc_class_ops directly
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Hi Rich,

On Thu, Apr 28, 2016 at 1:21 AM, Rich Felker <dalias@libc.org> wrote:
> Not a complaint about your patch, but I'd like to get rid of this
> platform device and abstraction layer completely since it doesn't seem
> like something that can be modeled correctly in device tree. When
> you're done cleaning this up, will it be possible to just have rtc
> drivers that use whatever generic framework is left, where the right
> driver is automatically attached to compatible DT nodes? I'm trying to
> move all of arch/sh over to device tree and remove hard-coded platform
> devices.

If you describe the RTC in DT, it can bound to a hardware-specific driver
in drivers/rtc/rtc-*.c.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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Subject: Re: [PATCH v3 13/16] char/genrtc: remove powerpc support
Date: Thu, 28 Apr 2016 09:25:25 +0200
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Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>,
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To: Arnd Bergmann <arnd@arndb.de>
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On Thu, Apr 28, 2016 at 12:34 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> --- a/arch/powerpc/platforms/Kconfig
> +++ b/arch/powerpc/platforms/Kconfig
> @@ -321,6 +321,17 @@ config OF_RTC
>           Uses information from the OF or flattened device tree to instantiate
>           platform devices for direct mapped RTC chips like the DS1742 or DS1743.
>
> +config GEN_RTC
> +       bool "Use the platform RTC operations from user space"
> +       select RTC_CLASS
> +       select RTC_DRV_GENERIC
> +       help
> +         This option provides backwards compatibility with the old gen_rtc.ko
> +         module that was traditionally used for old PowerPC machines.
> +         Platforms should migrate to enabling the RTC_DRV_GENERIC by hand
> +         replacing changing their get_rtc_time/set_rtc_time callbacks with

Drop "changing".

> +         a proper RTC device driver.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

From - Thu Nov 08 21:38:50 2018
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Subject: Re: [PATCH v3 00/16] genrtc removal
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On Thu, Apr 28, 2016 at 12:34 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> I ended up stuffing the two patch series into one, as they are now
> more dependent on one another. This now thoroughly removes the
> genrtc driver including the asm/rtc.h headers it uses. For all
> architectures that still have a meaningful asm/rtc.h, this goes
> through two stages:
>
> 1) make the rtc-generic implementation independent of asm/rtc.h
> 2) remove the asm/rtc.h header and disallow the gen_rtc driver
>
> As the last step, the driver itself gets removed.

In general, after fixing the minor nit:
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

For the m68k bits:
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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Subject: Re: [PATCH v3 04/16] rtc: sh: provide rtc_class_ops directly
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On Wednesday 27 April 2016 19:21:22 Rich Felker wrote:
> On Thu, Apr 28, 2016 at 12:34:18AM +0200, Arnd Bergmann wrote:
> > The rtc-generic driver provides an architecture specific
> > wrapper on top of the generic rtc_class_ops abstraction,
> > and on sh, that goes through another indirection using
> > the rtc_sh_get_time/rtc_sh_set_time functions.
> > 
> > This changes the sh rtc-generic device to provide its
> > rtc_class_ops directly, skipping one of the abstraction
> > levels.
> > 
> > Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> 
> Looks ok in principle. Have you tested that it builds? 

I think I build tested version 1, but not the current version.

> > diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
> > index d6d0a986c6e9..92cd676970d9 100644
> > --- a/arch/sh/kernel/time.c
> > +++ b/arch/sh/kernel/time.c
> > @@ -50,27 +50,30 @@ int update_persistent_clock(struct timespec now)
> >  }
> >  #endif
> >  
> > -unsigned int get_rtc_time(struct rtc_time *tm)
> > +static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
> >  {
> > -	if (rtc_sh_get_time != null_rtc_get_time) {
> 
> This seems like a functional change -- whereas previously the
> null_rtc_get_time case left *tm unchanged, now the function gets
> called and junk gets filled in. Is that desired?

I dropped the check because it duplicates the check in rtc_generic_init()
below it: the old genrtc driver needed the check in get_rtc_time()
because it would call that function unconditionally, but with the
rtc-generic driver, we know that we only ever call this after
registering the device successfully.

> > -		struct timespec tv;
> > +	struct timespec tv;
> >  
> > -		rtc_sh_get_time(&tv);
> > -		rtc_time_to_tm(tv.tv_sec, tm);
> > -	}
> > -
> > -	return RTC_24H;
> > +	rtc_sh_get_time(&tv);
> > +	rtc_time_to_tm(tv.tv_sec, tm);
> > +	return 0;
> 
> Also the return value is changed. Is this correct?

Yes: again, the genrtc driver had obscure calling conventions requiring
RTC_24H to be returned on success, while the rtc-generic driver uses
the normal kernel coding style of using 0 for success.

Previously, this function was used to convert from get_rtc_time()
calling conventions (without a device) to the normal rtc_class_ops:

static int generic_get_time(struct device *dev, struct rtc_time *tm)
{
       unsigned int ret = get_rtc_time(tm);

       if (ret & RTC_BATT_BAD)
               return -EOPNOTSUPP;

       return rtc_valid_tm(tm);
}

> >  }
> > -EXPORT_SYMBOL(get_rtc_time);
> >  
> > -int set_rtc_time(struct rtc_time *tm)
> > +static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
> >  {
> >  	unsigned long secs;
> >  
> >  	rtc_tm_to_time(tm, &secs);
> > -	return rtc_sh_set_time(secs);
> > +	if (!rtc_sh_set_time || rtc_sh_set_time(secs) < 0)
> > +		return -EOPNOTSUPP;
> > +
> > +	return 0;
> >  }
> > -EXPORT_SYMBOL(set_rtc_time);
> 
> Why checking rtc_sh_set_time for a null pointer? null_rtc_set_time is
> not a null pointer but a dummy function that's always safe to call, I
> think.

You are right, it should check for null_rtc_set_time instead, I probably
copied it from powerpc, which does this a bit differently.

Actually calling null_rtc_set_time however would be (slightly) wrong here,
because we want to return an error to user space if we try to set a
read-only rtc.

> > +static const struct rtc_class_ops rtc_generic_ops = {
> > +	.read_time = rtc_generic_get_time,
> > +	.set_time = rtc_generic_set_time,
> > +};
> >  
> >  static int __init rtc_generic_init(void)
> >  {
> > @@ -79,7 +82,10 @@ static int __init rtc_generic_init(void)
> >  	if (rtc_sh_get_time == null_rtc_get_time)
> >  		return -ENODEV;
> >  
> > -	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
> > +	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
> > +					     &rtc_generic_ops,
> > +					     sizeof(rtc_generic_ops));
> > +
> 
> Not a complaint about your patch, but I'd like to get rid of this
> platform device and abstraction layer completely since it doesn't seem
> like something that can be modeled correctly in device tree. When
> you're done cleaning this up, will it be possible to just have rtc
> drivers that use whatever generic framework is left, where the right
> driver is automatically attached to compatible DT nodes? I'm trying to
> move all of arch/sh over to device tree and remove hard-coded platform
> devices.

Yes, I think that would be great. When an rtc driver is registered, you
don't actually need the read_persistent_clock/update_persistent_clock
functions (there are __weak versions of them that do nothing and cause
a fallback to calling into the rtc subsystem), so you can replace
the rtc_sh_get_time/rtc_sh_set_time with proper drivers one at a time.

I only see two of them anyway (dreamcast and sh03), so that should
be easy enough to do. For instance in arch/sh/boards/mach-sh03/rtc.c,
the sh03_time_init() function should register a platform driver,
whose probe function calls devm_rtc_device_register() to register
with the rtc subsystem. Then you move the entire file to drivers/rtc/
and change the callers of sh03_time_init() to create the device
manually (for the classic board file) or drop it (for DT).

After you have done that, all rtc related code can be removed from
arch/sh/kernel/time.c.

	Arnd

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Subject: Re: [PATCH v3 04/16] rtc: sh: provide rtc_class_ops directly
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On Thursday 28 April 2016 11:08:41 Arnd Bergmann wrote:
> I only see two of them anyway (dreamcast and sh03), so that should
> be easy enough to do. For instance in arch/sh/boards/mach-sh03/rtc.c,
> the sh03_time_init() function should register a platform driver,
> whose probe function calls devm_rtc_device_register() to register
> with the rtc subsystem. Then you move the entire file to drivers/rtc/
> and change the callers of sh03_time_init() to create the device
> manually (for the classic board file) or drop it (for DT).

Just FYI:

Another look at the sh03_rtc_settimeofday function shows that it's
always been wrong: unlike the set_mmss() function it calls, it should
set all the time fields, not just minutes and seconds.

	Arnd
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On Thursday 28 April 2016 09:25:25 Geert Uytterhoeven wrote:
> On Thu, Apr 28, 2016 at 12:34 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> > --- a/arch/powerpc/platforms/Kconfig
> > +++ b/arch/powerpc/platforms/Kconfig
> > @@ -321,6 +321,17 @@ config OF_RTC
> >           Uses information from the OF or flattened device tree to instantiate
> >           platform devices for direct mapped RTC chips like the DS1742 or DS1743.
> >
> > +config GEN_RTC
> > +       bool "Use the platform RTC operations from user space"
> > +       select RTC_CLASS
> > +       select RTC_DRV_GENERIC
> > +       help
> > +         This option provides backwards compatibility with the old gen_rtc.ko
> > +         module that was traditionally used for old PowerPC machines.
> > +         Platforms should migrate to enabling the RTC_DRV_GENERIC by hand
> > +         replacing changing their get_rtc_time/set_rtc_time callbacks with
> 
> Drop "changing".
> 
> 

done, thanks!

	Arnd
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        James Hogan <james.hogan@imgtec.com>,
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        Jonas Bonn <jonas@southpole.se>,
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        "David S. Miller" <davem@davemloft.net>,
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From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>

Because some architectures (alpha, armv6, etc.) don't provide hardware division,
the mod operation is slow! Binary GCD algorithm uses simple arithmetic operations,
it replaces division with arithmetic shifts, comparisons, and subtractions.

I have compiled successfully with x86_64_defconfig and i386_defconfig.

Changes to V2:
- Add a new Kconfig variable CPU_NO_EFFICIENT_FFS
- Separate into two versions by CPU_NO_EFFICIENT_FFS
- Return directly from the loop, rather than using break().
- Use "r &= -r" mostly because it's clearer.
- Improve a little bit in even/odd version

Changes to V1:
- Don't touch Kconfig, remove the Euclidean algorithm implementation
- Don't use the "even-odd" variant
- Use __ffs if the CPU has efficient __ffs

Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
Signed-off-by: George Spelvin <linux@horizon.com>
---
 arch/Kconfig                         |  3 ++
 arch/alpha/Kconfig                   |  1 +
 arch/arm/mm/Kconfig                  |  3 ++
 arch/h8300/Kconfig                   |  1 +
 arch/m32r/Kconfig                    |  1 +
 arch/m68k/Kconfig.cpu                | 11 ++++++
 arch/metag/Kconfig                   |  1 +
 arch/microblaze/Kconfig              |  1 +
 arch/mips/include/asm/cpu-features.h |  3 ++
 arch/nios2/Kconfig                   |  1 +
 arch/openrisc/Kconfig                |  1 +
 arch/parisc/Kconfig                  |  1 +
 arch/score/Kconfig                   |  1 +
 arch/sh/Kconfig                      |  1 +
 arch/sparc/Kconfig                   |  1 +
 lib/gcd.c                            | 66 +++++++++++++++++++++++++++++++-----
 16 files changed, 88 insertions(+), 9 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 81869a5..275f17d 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -638,4 +638,7 @@ config COMPAT_OLD_SIGACTION
 config ARCH_NO_COHERENT_DMA_MMAP
 	bool
 
+config CPU_NO_EFFICIENT_FFS
+	def_bool n
+
 source "kernel/gcov/Kconfig"
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 9d8a858..44e6f05 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -27,6 +27,7 @@ config ALPHA
 	select MODULES_USE_ELF_RELA
 	select ODD_RT_SIGACTION
 	select OLD_SIGSUSPEND
+	select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
 	help
 	  The Alpha is a 64-bit general-purpose processor designed and
 	  marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 5534766..cb569b6 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -421,18 +421,21 @@ config CPU_32v3
 	select CPU_USE_DOMAINS if MMU
 	select NEED_KUSER_HELPERS
 	select TLS_REG_EMUL if SMP || !MMU
+	select CPU_NO_EFFICIENT_FFS
 
 config CPU_32v4
 	bool
 	select CPU_USE_DOMAINS if MMU
 	select NEED_KUSER_HELPERS
 	select TLS_REG_EMUL if SMP || !MMU
+	select CPU_NO_EFFICIENT_FFS
 
 config CPU_32v4T
 	bool
 	select CPU_USE_DOMAINS if MMU
 	select NEED_KUSER_HELPERS
 	select TLS_REG_EMUL if SMP || !MMU
+	select CPU_NO_EFFICIENT_FFS
 
 config CPU_32v5
 	bool
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 986ea84..aa232de 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -20,6 +20,7 @@ config H8300
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_LZO
 	select HAVE_ARCH_KGDB
+	select CPU_NO_EFFICIENT_FFS
 
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index c82b292..3cc8498 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -17,6 +17,7 @@ config M32R
 	select ARCH_USES_GETTIMEOFFSET
 	select MODULES_USE_ELF_RELA
 	select HAVE_DEBUG_STACKOVERFLOW
+	select CPU_NO_EFFICIENT_FFS
 
 config SBUS
 	bool
diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu
index 0dfcf12..0b6efe8 100644
--- a/arch/m68k/Kconfig.cpu
+++ b/arch/m68k/Kconfig.cpu
@@ -40,6 +40,7 @@ config M68000
 	select CPU_HAS_NO_MULDIV64
 	select CPU_HAS_NO_UNALIGNED
 	select GENERIC_CSUM
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  The Freescale (was Motorola) 68000 CPU is the first generation of
 	  the well known M68K family of processors. The CPU core as well as
@@ -51,6 +52,7 @@ config MCPU32
 	bool
 	select CPU_HAS_NO_BITFIELDS
 	select CPU_HAS_NO_UNALIGNED
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  The Freescale (was then Motorola) CPU32 is a CPU core that is
 	  based on the 68020 processor. For the most part it is used in
@@ -130,6 +132,7 @@ config M5206
 	depends on !MMU
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Motorola ColdFire 5206 processor support.
 
@@ -138,6 +141,7 @@ config M5206e
 	depends on !MMU
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Motorola ColdFire 5206e processor support.
 
@@ -163,6 +167,7 @@ config M5249
 	depends on !MMU
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Motorola ColdFire 5249 processor support.
 
@@ -171,6 +176,7 @@ config M525x
 	depends on !MMU
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Freescale (Motorola) Coldfire 5251/5253 processor support.
 
@@ -189,6 +195,7 @@ config M5272
 	depends on !MMU
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Motorola ColdFire 5272 processor support.
 
@@ -217,6 +224,7 @@ config M5307
 	select COLDFIRE_SW_A7
 	select HAVE_CACHE_CB
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Motorola ColdFire 5307 processor support.
 
@@ -242,6 +250,7 @@ config M5407
 	select COLDFIRE_SW_A7
 	select HAVE_CACHE_CB
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Motorola ColdFire 5407 processor support.
 
@@ -251,6 +260,7 @@ config M547x
 	select MMU_COLDFIRE if MMU
 	select HAVE_CACHE_CB
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Freescale ColdFire 5470/5471/5472/5473/5474/5475 processor support.
 
@@ -260,6 +270,7 @@ config M548x
 	select M54xx
 	select HAVE_CACHE_CB
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Freescale ColdFire 5480/5481/5482/5483/5484/5485 processor support.
 
diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig
index a0fa88d..2ac2de6 100644
--- a/arch/metag/Kconfig
+++ b/arch/metag/Kconfig
@@ -29,6 +29,7 @@ config METAG
 	select OF
 	select OF_EARLY_FLATTREE
 	select SPARSE_IRQ
+	select CPU_NO_EFFICIENT_FFS
 
 config STACKTRACE_SUPPORT
 	def_bool y
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 3d793b5..f17c3a4 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -32,6 +32,7 @@ config MICROBLAZE
 	select OF_EARLY_FLATTREE
 	select TRACING_SUPPORT
 	select VIRT_TO_BUS
+	select CPU_NO_EFFICIENT_FFS
 
 config SWAP
 	def_bool n
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index eeec8c8..fd4ae7d 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -288,6 +288,9 @@
 #ifndef cpu_has_clo_clz
 #define cpu_has_clo_clz	cpu_has_mips_r
 #endif
+#if !cpu_has_clo_clz
+#define CONFIG_CPU_NO_EFFICIENT_FFS 1
+#endif
 
 /*
  * MIPS32 R2, MIPS64 R2, Loongson 3A and Octeon have WSBH.
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 4375554..f10bd2c 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -16,6 +16,7 @@ config NIOS2
 	select SOC_BUS
 	select SPARSE_IRQ
 	select USB_ARCH_HAS_HCD if USB_SUPPORT
+	select CPU_NO_EFFICIENT_FFS
 
 config GENERIC_CSUM
 	def_bool y
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index e118c02..142cb05 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -25,6 +25,7 @@ config OPENRISC
 	select MODULES_USE_ELF_RELA
 	select HAVE_DEBUG_STACKOVERFLOW
 	select OR1K_PIC
+	select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1
 
 config MMU
 	def_bool y
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 88cfaa8..3d498a6 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -32,6 +32,7 @@ config PARISC
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_ARCH_SECCOMP_FILTER
 	select ARCH_NO_COHERENT_DMA_MMAP
+	select CPU_NO_EFFICIENT_FFS
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index 366e1b5..507d631 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -14,6 +14,7 @@ config SCORE
 	select VIRT_TO_BUS
 	select MODULES_USE_ELF_REL
 	select CLONE_BACKWARDS
+	select CPU_NO_EFFICIENT_FFS
 
 choice
 	prompt "System type"
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 7ed20fc..56cf5e5 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -44,6 +44,7 @@ config SUPERH
 	select OLD_SIGSUSPEND
 	select OLD_SIGACTION
 	select HAVE_ARCH_AUDITSYSCALL
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  The SuperH is a RISC processor targeted for use in embedded systems
 	  and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 57ffaf2..ca675ed 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -42,6 +42,7 @@ config SPARC
 	select ODD_RT_SIGACTION
 	select OLD_SIGSUSPEND
 	select ARCH_HAS_SG_CHAIN
+	select CPU_NO_EFFICIENT_FFS
 
 config SPARC32
 	def_bool !64BIT
diff --git a/lib/gcd.c b/lib/gcd.c
index 3657f12..eba7d4e 100644
--- a/lib/gcd.c
+++ b/lib/gcd.c
@@ -2,20 +2,68 @@
 #include <linux/gcd.h>
 #include <linux/export.h>
 
-/* Greatest common divisor */
+/*
+ * This implements the binary GCD algorithm. (Often attributed to Stein,
+ * but as Knuth has noted, appears a first-century Chinese math text.)
+ *
+ * This is faster than the division-based algorithm even on x86, which
+ * has decent hardware division.
+ */
+
+#if !defined(CONFIG_CPU_NO_EFFICIENT_FFS)
+
+/* If __ffs is available, the even/odd algorithm benchmarks slower. */
 unsigned long gcd(unsigned long a, unsigned long b)
 {
-	unsigned long r;
+	unsigned long r = a | b;
+
+	if (!a || !b)
+		return r;
 
-	if (a < b)
-		swap(a, b);
+	b >>= __ffs(b);
 
-	if (!b)
-		return a;
-	while ((r = a % b) != 0) {
-		a = b;
-		b = r;
+	for (;;) {
+		a >>= __ffs(a);
+		if (a == b)
+			return a << __ffs(r);
+		if (a < b)
+			swap(a, b);
+		a -= b;
 	}
+}
+
+#else
+
+/* If normalization is done by loops, the even/odd algorithm is a win. */
+unsigned long gcd(unsigned long a, unsigned long b)
+{
+	unsigned long r = a | b;
+
+	if (!a || !b)
+		return r;
+
+	/* Isolate lsbit of r */
+	r &= -r;
+
+	while (!(a & r))
+		a >>= 1;
+	while (!(b & r))
+		b >>= 1;
+
+	while (a != b) {
+		if (a < b)
+			swap(a, b);
+		a -= b;
+
+		a >>= 1;
+		if (a & r)
+			a += b;
+		do a >>= 1; while (!(a & r));
+	}
+
 	return b;
 }
+
+#endif
+
 EXPORT_SYMBOL_GPL(gcd);
-- 
2.5.0





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Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.openrisc,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [patch V3] lib: GCD: add binary GCD algorithm
Date: Thu, 28 Apr 2016 20:18:01 +0800
Lines: 943
Approved: news@gmane.org
Message-ID: <201604282003.CNnbFCBq%fengguang.wu@intel.com>
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Cc: kbuild-all@01.org, akpm@linux-foundation.org, linux@horizon.com,
	peterz@infradead.org, Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>,
	Richard Henderson <rth@twiddle.net>,
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	Russell King <linux@arm.linux.org.uk>,
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	Ralf Baechle <ralf@linux-mips.org>,
	Ley Foon Tan <lftan@altera.com>,
	Jonas Bonn <jonas@southpole.se>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
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	Lennox Wu <lennox.wu@gmail.com>, Rich Felker <dalias@libc.org>,
	"David S. Miller" <davem@davemloft.net>,
	linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	uclinux-h8-devel@li
To: zengzhaoxiu@163.com
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Hi,

[auto build test ERROR on v4.6-rc5]
[cannot apply to next-20160428]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/zengzhaoxiu-163-com/lib-GCD-add-binary-GCD-algorithm/20160428-195527
config: mips-allyesconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=mips 

All error/warnings (new ones prefixed by >>):

   In file included from arch/mips/include/asm/bitops.h:21:0,
                    from include/linux/bitops.h:36,
                    from include/linux/kernel.h:10,
                    from include/asm-generic/bug.h:13,
                    from arch/mips/include/asm/bug.h:41,
                    from include/linux/bug.h:4,
                    from include/linux/page-flags.h:9,
                    from kernel/bounds.c:9:
>> arch/mips/include/asm/cpu-features.h:205:28: warning: "cpu_data" is not defined [-Wundef]
    # define cpu_has_mips32r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R6)
                               ^
>> arch/mips/include/asm/cpu-features.h:241:5: note: in expansion of macro 'cpu_has_mips32r6'
        cpu_has_mips32r6 | cpu_has_mips64r1 | \
        ^
>> arch/mips/include/asm/cpu-features.h:289:25: note: in expansion of macro 'cpu_has_mips_r'
    #define cpu_has_clo_clz cpu_has_mips_r
                            ^
>> arch/mips/include/asm/cpu-features.h:291:6: note: in expansion of macro 'cpu_has_clo_clz'
    #if !cpu_has_clo_clz
         ^
>> arch/mips/include/asm/cpu-features.h:205:36: error: token "[" is not valid in preprocessor expressions
    # define cpu_has_mips32r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R6)
                                       ^
>> arch/mips/include/asm/cpu-features.h:241:5: note: in expansion of macro 'cpu_has_mips32r6'
        cpu_has_mips32r6 | cpu_has_mips64r1 | \
        ^
>> arch/mips/include/asm/cpu-features.h:289:25: note: in expansion of macro 'cpu_has_mips_r'
    #define cpu_has_clo_clz cpu_has_mips_r
                            ^
>> arch/mips/include/asm/cpu-features.h:291:6: note: in expansion of macro 'cpu_has_clo_clz'
    #if !cpu_has_clo_clz
         ^
   make[2]: *** [kernel/bounds.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

vim +205 arch/mips/include/asm/cpu-features.h

0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  199  # define cpu_has_mips32r1	(cpu_data[0].isa_level & MIPS_CPU_ISA_M32R1)
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  200  #endif
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  201  #ifndef cpu_has_mips32r2
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  202  # define cpu_has_mips32r2	(cpu_data[0].isa_level & MIPS_CPU_ISA_M32R2)
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  203  #endif
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  204  #ifndef cpu_has_mips32r6
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13 @205  # define cpu_has_mips32r6	(cpu_data[0].isa_level & MIPS_CPU_ISA_M32R6)
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  206  #endif
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  207  #ifndef cpu_has_mips64r1
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  208  # define cpu_has_mips64r1	(cpu_data[0].isa_level & MIPS_CPU_ISA_M64R1)
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  209  #endif
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  210  #ifndef cpu_has_mips64r2
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  211  # define cpu_has_mips64r2	(cpu_data[0].isa_level & MIPS_CPU_ISA_M64R2)
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  212  #endif
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  213  #ifndef cpu_has_mips64r6
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  214  # define cpu_has_mips64r6	(cpu_data[0].isa_level & MIPS_CPU_ISA_M64R6)
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  215  #endif
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  216  
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  217  /*
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  218   * Shortcuts ...
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  219   */
08a07904e arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  220  #define cpu_has_mips_2_3_4_5	(cpu_has_mips_2 | cpu_has_mips_3_4_5)
08a07904e arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  221  #define cpu_has_mips_3_4_5	(cpu_has_mips_3 | cpu_has_mips_4_5)
08a07904e arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  222  #define cpu_has_mips_4_5	(cpu_has_mips_4 | cpu_has_mips_5)
08a07904e arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  223  
08a07904e arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  224  #define cpu_has_mips_2_3_4_5_r	(cpu_has_mips_2 | cpu_has_mips_3_4_5_r)
08a07904e arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  225  #define cpu_has_mips_3_4_5_r	(cpu_has_mips_3 | cpu_has_mips_4_5_r)
08a07904e arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  226  #define cpu_has_mips_4_5_r	(cpu_has_mips_4 | cpu_has_mips_5_r)
08a07904e arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  227  #define cpu_has_mips_5_r	(cpu_has_mips_5 | cpu_has_mips_r)
08a07904e arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  228  
2d83fea78 arch/mips/include/asm/cpu-features.h Maciej W. Rozycki 2015-04-03  229  #define cpu_has_mips_3_4_5_64_r2_r6					\
2d83fea78 arch/mips/include/asm/cpu-features.h Maciej W. Rozycki 2015-04-03  230  				(cpu_has_mips_3 | cpu_has_mips_4_5_64_r2_r6)
2d83fea78 arch/mips/include/asm/cpu-features.h Maciej W. Rozycki 2015-04-03  231  #define cpu_has_mips_4_5_64_r2_r6					\
2d83fea78 arch/mips/include/asm/cpu-features.h Maciej W. Rozycki 2015-04-03  232  				(cpu_has_mips_4_5 | cpu_has_mips64r1 |	\
2d83fea78 arch/mips/include/asm/cpu-features.h Maciej W. Rozycki 2015-04-03  233  				 cpu_has_mips_r2 | cpu_has_mips_r6)
08a07904e arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  234  
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  235  #define cpu_has_mips32	(cpu_has_mips32r1 | cpu_has_mips32r2 | cpu_has_mips32r6)
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  236  #define cpu_has_mips64	(cpu_has_mips64r1 | cpu_has_mips64r2 | cpu_has_mips64r6)
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  237  #define cpu_has_mips_r1 (cpu_has_mips32r1 | cpu_has_mips64r1)
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  238  #define cpu_has_mips_r2 (cpu_has_mips32r2 | cpu_has_mips64r2)
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  239  #define cpu_has_mips_r6	(cpu_has_mips32r6 | cpu_has_mips64r6)
c46b302b9 arch/mips/include/asm/cpu-features.h Ralf Baechle      2008-10-28  240  #define cpu_has_mips_r	(cpu_has_mips32r1 | cpu_has_mips32r2 | \
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13 @241  			 cpu_has_mips32r6 | cpu_has_mips64r1 | \
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  242  			 cpu_has_mips64r2 | cpu_has_mips64r6)
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  243  
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  244  /* MIPSR2 and MIPSR6 have a lot of similarities */
34c56fc1c arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  245  #define cpu_has_mips_r2_r6	(cpu_has_mips_r2 | cpu_has_mips_r6)
0401572a9 include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  246  
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  247  /*
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  248   * cpu_has_mips_r2_exec_hazard - return if IHB is required on current processor
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  249   *
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  250   * Returns non-zero value if the current processor implementation requires
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  251   * an IHB instruction to deal with an instruction hazard as per MIPS R2
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  252   * architecture specification, zero otherwise.
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  253   */
41f0e4d04 arch/mips/include/asm/cpu-features.h David Daney       2009-05-12  254  #ifndef cpu_has_mips_r2_exec_hazard
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  255  #define cpu_has_mips_r2_exec_hazard					\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  256  ({									\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  257  	int __res;							\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  258  									\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  259  	switch (current_cpu_type()) {					\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  260  	case CPU_M14KC:							\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  261  	case CPU_74K:							\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  262  	case CPU_1074K:							\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  263  	case CPU_PROAPTIV:						\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  264  	case CPU_P5600:							\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  265  	case CPU_M5150:							\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  266  	case CPU_QEMU_GENERIC:						\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  267  	case CPU_CAVIUM_OCTEON:						\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  268  	case CPU_CAVIUM_OCTEON_PLUS:					\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  269  	case CPU_CAVIUM_OCTEON2:					\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  270  	case CPU_CAVIUM_OCTEON3:					\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  271  		__res = 0;						\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  272  		break;							\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  273  									\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  274  	default:							\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  275  		__res = 1;						\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  276  	}								\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  277  									\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  278  	__res;								\
9cdf30bd3 arch/mips/include/asm/cpu-features.h Ralf Baechle      2015-03-25  279  })
41f0e4d04 arch/mips/include/asm/cpu-features.h David Daney       2009-05-12  280  #endif
41f0e4d04 arch/mips/include/asm/cpu-features.h David Daney       2009-05-12  281  
47740eb88 arch/mips/include/asm/cpu-features.h Ralf Baechle      2009-04-19  282  /*
47740eb88 arch/mips/include/asm/cpu-features.h Ralf Baechle      2009-04-19  283   * MIPS32, MIPS64, VR5500, IDT32332, IDT32334 and maybe a few other
becee6b8c arch/mips/include/asm/cpu-features.h Maciej W. Rozycki 2013-09-22  284   * pre-MIPS32/MIPS64 processors have CLO, CLZ.	The IDT RC64574 is 64-bit and
417a5eb02 arch/mips/include/asm/cpu-features.h Ralf Baechle      2010-08-05  285   * has CLO and CLZ but not DCLO nor DCLZ.  For 64-bit kernels
47740eb88 arch/mips/include/asm/cpu-features.h Ralf Baechle      2009-04-19  286   * cpu_has_clo_clz also indicates the availability of DCLO and DCLZ.
47740eb88 arch/mips/include/asm/cpu-features.h Ralf Baechle      2009-04-19  287   */
47740eb88 arch/mips/include/asm/cpu-features.h Ralf Baechle      2009-04-19  288  #ifndef cpu_has_clo_clz
47740eb88 arch/mips/include/asm/cpu-features.h Ralf Baechle      2009-04-19 @289  #define cpu_has_clo_clz	cpu_has_mips_r
47740eb88 arch/mips/include/asm/cpu-features.h Ralf Baechle      2009-04-19  290  #endif
35e1a24e8 arch/mips/include/asm/cpu-features.h Zhaoxiu Zeng      2016-04-28 @291  #if !cpu_has_clo_clz
35e1a24e8 arch/mips/include/asm/cpu-features.h Zhaoxiu Zeng      2016-04-28  292  #define CONFIG_CPU_NO_EFFICIENT_FFS 1
35e1a24e8 arch/mips/include/asm/cpu-features.h Zhaoxiu Zeng      2016-04-28  293  #endif
47740eb88 arch/mips/include/asm/cpu-features.h Ralf Baechle      2009-04-19  294  

:::::: The code at line 205 was first introduced by commit
:::::: 34c56fc1c167facc375d927687df0a3891d164ac MIPS: asm: cpu: Add MIPSR6 ISA definitions

:::::: TO: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
:::::: CC: Markos Chandras <markos.chandras@imgtec.com>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

--wRRV7LY7NUeQGEoC
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Subject: Re: [patch V3] lib: GCD: add binary GCD algorithm
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On Apr 28, 2016, at 7:43 AM, zengzhaoxiu-9Onoh4P/yGk@public.gmane.org wrote:

> + * This implements the binary GCD algorithm. (Often attributed to Stein,
> + * but as Knuth has noted, appears a first-century Chinese math text.)

Should this be "appears in a"?

Josh


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Subject: Re: [patch V3] lib: GCD: add binary GCD algorithm
Date: 28 Apr 2016 12:48:56 -0400
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Another few comments:

1. Would ARCH_HAS_FAST_FFS involve fewer changes than CPU_NO_EFFICIENT_FFS?
   
   Rather than updating all the Kconfig files, it could be #defined in
   the arch/*/asm/bitops.h files where the __ffs macro is defined.  E.g.

diff --git a/arch/alpha/include/asm/bitops.h b/arch/alpha/include/asm/bitops.h
index 4bdfbd44..c9c307a8 100644
--- a/arch/alpha/include/asm/bitops.h
+++ b/arch/alpha/include/asm/bitops.h
@@ -333,6 +333,7 @@ static inline unsigned long ffz(unsigned long word)
 static inline unsigned long __ffs(unsigned long word)
 {
 #if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+#define ARCH_HAS_FAST_FFS 1
 	/* Whee.  EV67 can calculate it directly.  */
 	return __kernel_cttz(word);
 #else

Looking at the available architectures (list below), it looks like we
have 9 with fast __ffs, 13 without, and 7 where it depends on the model.
Three of the architectures without could have one written.

In terms of code changes, ARCH_HAS_SLOW_FFS would be slightly smaller,
inserting it into the asm-generic version and the few arch-specific
versions (marked "NO" below) which have optimized but bit-at-a-time code.

__ffs on the available architectures:
	Alpha: sometimes (CONFIG_ALPHA_EV6, CONFIG_ALPHA_EV67)
	ARC: sometimes (!CONFIG_ISA_ARCOMPACT)
	ARM: sometimes (V5+)
	ARM64: NO, could be written using RBIT and CLZ
	AVR: yes
	Blackfin: NO, could be written using hweight()
	C6x: yes
	CRIS: NO
	FR-V: yes
	H8300: NO
	Hexagon: yes
	IA64: yes
	M32R: NO
	M68k: sometimes
	MetaG: NO
	Microblaze: NO
	MIPS: sometimes
	MN10300: yes
	OpenRISC: NO
	PA-RISC: NO?  Interesting code, but I think it's a net loss.
	PowerPC: yes
	S390: sometimes (CONFIG_HAVE_MARCH_Z9_109_FEATURES)
	Score: NO
	SH: NO
	SPARC: NO
	Tile: NO, could be written using hweight()
	Unicore32: yes
	x86: yes
	Xtensa: sometimes (XCHAL_HAVE_NSA)


2. The documentation could definitely be improved.  If I may humbly
   recommend something like the following.  I think it's particularly
   important to say in the summary line that this is replacing something
   rather than adding (which sets off code bloat alarms).

+Subject: lib: GCD: Use binary GCD algorithm instead of Euclidean
+
+Even on x86 machines with reasonable division hardware, the binary
+algorithm runs about 25% faster (80% the execution time) than the
+division-based Euclidian algorithm.
+
+On platforms like Alpha and ARMv6 where division is a function call to
+emulation code, it's even more significant.
+
+There are two variants of the code here, depending on whether a
+fast __ffs (find least significant set bit) instruction is available.
+This allows the unpredictable branches in the bit-at-a-time shifting
+loop to be eliminated.
+
+If fast __ffs is not available, the "even/odd" GCD variant is used.
+This adds an additional test in the loop to choose between
+(a-b)/4 and (a+b)/4, dividing by 4 each iteration.  If fast __ffs
+is available, this doesn't help.


3. The benchmarking could be made more realistic.  Zhaoxiu Zeng's test
   program uses full-width random inputs.  However, if there is a large
   difference in the size of the inputs, it takes the binary algorithm
   many steps to do what division does in one.
   
   (Aside: I'd use informal address, but I don't know which name to use.
   Are those names in Western given-family order Zhaoxiu ZENG, or Eastern
   family-given order ZHAOXIU Zeng?)

For example, if I benchmark
	gcd(random64(), 1000000)
the binary code is barely faster on a Phenom, and if I drop that to
1000, it's actually 25% slower.  On Ivy Bridge, the binary code is
still consistently faster in both cases.

On a Pentium 4, if anyone cares, the binary code is 2.4x faster
on full-width inputs (32 bits in this case!), 25% faster with a fixed
1,000,000 and about 7% slower with a fixed 1,000.

It still seems like a net win to me, especially as the large speedups
apply to the worst case (so you're saving large*large), while the
slowdowns apply to the best case (you're losing small*small).
But if someone wants to do suggest more realistic benchmark conditions,
it would be interesting.

This entire function isn't actually used in any performance-sensitive
places AFAICT, so it's not very important one way or another, but I
understand the urge.


One way I changed the benchmark program was to eliminate the sleep(1)
calls, bump the iteration count 100-fold, and do two passes over the
list of, discarding the first one.

Without that, the Euclidean algorithm, being the first to run, gets a
huge penalty due to the CPU throttling up in the middle of its run.


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Subject: Re: [patch V3] lib: GCD: add binary GCD algorithm
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On Thu, 2016-04-28 at 19:43 +0800, zengzhaoxiu@163.com wrote:
> From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
> 
> Because some architectures (alpha, armv6, etc.) don't provide 
> hardware division, the mod operation is slow! Binary GCD algorithm 
> uses simple arithmetic operations, it replaces division with 
> arithmetic shifts, comparisons, and subtractions.
> 
> I have compiled successfully with x86_64_defconfig and 
> i386_defconfig.

What's the reason for wanting to optimize this and thus have to
maintain (and test) two separate code paths, which is a significant
expense? As far as I can see, gcd() is mosly used in finding optimal
clocks for operations, which is usually done at start of day and not
time critical.

James


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Subject: Re: [patch V3] lib: GCD: add binary GCD algorithm
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To: George Spelvin <linux@horizon.com>
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On Thu, Apr 28, 2016 at 6:48 PM, George Spelvin <linux@horizon.com> wrote:
> Another few comments:
>
> 1. Would ARCH_HAS_FAST_FFS involve fewer changes than CPU_NO_EFFICIENT_FFS?

No, as you want to _disable_ ARCH_HAS_FAST_FFS / _enable_
CPU_NO_EFFICIENT_FFS as soon as you're enabling support for a
CPU that doesn't support it.

Logical OR is easier in both the Kconfig and C preprocessor languages
than logical NAND.

E.g. in Kconfig, a CPU core not supporting it can just select
CPU_NO_EFFICIENT_FFS.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Subject: Re: [patch V3] lib: GCD: add binary GCD algorithm
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On Thu, Apr 28, 2016 at 07:51:06PM +0200, Geert Uytterhoeven wrote:
> On Thu, Apr 28, 2016 at 6:48 PM, George Spelvin <linux@horizon.com> wrote:
> > Another few comments:
> >
> > 1. Would ARCH_HAS_FAST_FFS involve fewer changes than CPU_NO_EFFICIENT_FFS?
> 
> No, as you want to _disable_ ARCH_HAS_FAST_FFS / _enable_
> CPU_NO_EFFICIENT_FFS as soon as you're enabling support for a
> CPU that doesn't support it.
> 
> Logical OR is easier in both the Kconfig and C preprocessor languages
> than logical NAND.
> 
> E.g. in Kconfig, a CPU core not supporting it can just select
> CPU_NO_EFFICIENT_FFS.

How does a CPU lack an efficient ffs/ctz anyway? There are all sorts
of ways to implement it without a native insn, some of which are
almost or just as fast as the native insn on cpus that have the
latter. On anything with a fast multiply, the de Bruijn sequence
approach is near-optimal, and otherwise one of the binary-search type
approaches (possibly branchless) can be used. If the compiler doesn't
generate an appropriate one for __builtin_ctz, that's arguably a
compiler bug.

Rich
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From - Thu Nov 08 21:38:51 2018
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Subject: Re: [patch V3] lib: GCD: add binary GCD algorithm
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On Thu, Apr 28, 2016 at 7:58 PM, Rich Felker <dalias@libc.org> wrote:
> On Thu, Apr 28, 2016 at 07:51:06PM +0200, Geert Uytterhoeven wrote:
>> On Thu, Apr 28, 2016 at 6:48 PM, George Spelvin <linux@horizon.com> wrote:
>> > Another few comments:
>> >
>> > 1. Would ARCH_HAS_FAST_FFS involve fewer changes than CPU_NO_EFFICIENT_FFS?
>>
>> No, as you want to _disable_ ARCH_HAS_FAST_FFS / _enable_
>> CPU_NO_EFFICIENT_FFS as soon as you're enabling support for a
>> CPU that doesn't support it.
>>
>> Logical OR is easier in both the Kconfig and C preprocessor languages
>> than logical NAND.
>>
>> E.g. in Kconfig, a CPU core not supporting it can just select
>> CPU_NO_EFFICIENT_FFS.
>
> How does a CPU lack an efficient ffs/ctz anyway? There are all sorts
> of ways to implement it without a native insn, some of which are
> almost or just as fast as the native insn on cpus that have the
> latter. On anything with a fast multiply, the de Bruijn sequence
> approach is near-optimal, and otherwise one of the binary-search type
> approaches (possibly branchless) can be used. If the compiler doesn't
> generate an appropriate one for __builtin_ctz, that's arguably a
> compiler bug.

m68k-linux-gcc 4.6.3 generates:

        jsr __ctzsi2

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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From - Thu Nov 08 21:38:51 2018
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Subject: Re: [patch V3] lib: GCD: add binary GCD algorithm
Date: 28 Apr 2016 15:15:51 -0400
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> How does a CPU lack an efficient ffs/ctz anyway? There are all sorts
> of ways to implement it without a native insn, some of which are
> almost or just as fast as the native insn on cpus that have the
> latter. On anything with a fast multiply, the de Bruijn sequence
> approach is near-optimal, and otherwise one of the binary-search type
> approaches (possibly branchless) can be used. If the compiler doesn't
> generate an appropriate one for __builtin_ctz, that's arguably a
> compiler bug.

What's wanted here is something faster than any of those.
Yes, there's a simple constant-time branch-free implementation:

unsigned inline __attribute__((const))
hweight32(uint32_t x)
{
	x -= (x >> 1) & 0x55555555;
	x  = ((x >> 2) & 0x33333333) + (x & 0x33333333);
	x += x >> 4;
	x &= 0x0f0f0f0f;
	x += x >> 8;
	x += x >> 16;
	return x & 63;
}

unsigned inline __attribute__((const))
__ffs32(uint32_t x)
{
	return hweight(~x & (x-1));
}

but if you work it through, that's about 19 instructions; a few more on
platforms without 32-bit immediates.  The shift itself makes an even 20,
and there are a lot of sequential dependencies (I count a 17-op chain
including the shift) limiting execution time.

The de Bruijn hack reduces the length but adds a memory access for
the table lookup.  (http://supertech.csail.mit.edu/papers/debruijn.pdf)

In the GCD code, the number to normalize is basically random, so the
normalization loop shifts an average of 1 bit.  One bit half the time,
a second bit 1/4 of the time, etc.

(The posted code in the FAST_FFS case omits one guaranteed shift at the
end of the loop because the normalization code is constant-time.)

So "fast __ffs" basically means faster than *one* iteration of
"while (!(x & 1)) x >>= 1;".

In this case "fast" means cheaper than *one* unpredictable branch, which
is a very small handful of instructions.
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From - Thu Nov 08 21:38:51 2018
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Subject: Re: [patch V3] lib: GCD: add binary GCD algorithm
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> __ffs on the available architectures:
> 	Alpha: sometimes (CONFIG_ALPHA_EV6, CONFIG_ALPHA_EV67)
> 	ARC: sometimes (!CONFIG_ISA_ARCOMPACT)
> 	ARM: sometimes (V5+)
> 	ARM64: NO, could be written using RBIT and CLZ
> 	AVR: yes
> 	Blackfin: NO, could be written using hweight()
> 	C6x: yes
> 	CRIS: NO
> 	FR-V: yes
> 	H8300: NO
> 	Hexagon: yes
> 	IA64: yes
> 	M32R: NO
> 	M68k: sometimes
> 	MetaG: NO
> 	Microblaze: NO
> 	MIPS: sometimes
> 	MN10300: yes
> 	OpenRISC: NO
> 	PA-RISC: NO?  Interesting code, but I think it's a net loss.
> 	PowerPC: yes
> 	S390: sometimes (CONFIG_HAVE_MARCH_Z9_109_FEATURES)
> 	Score: NO
> 	SH: NO
> 	SPARC: NO
SPARC: sparc64: YES, sparc32: NO
Patch needs to be updated to refelct this.

	Sam

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When enabling all-branch ftrace support (CONFIG_PROFILE_ALL_BRANCHES) the
kernel gets really huge and some ftrace assembler functions like mcount can't
reach the ftrace helper functions which are written in C.  Avoid this problem
of too distant branches by moving the ftrace C-helper functions into the
.text.hot section which is put in front of the standard .text section by the
linker.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 39127d3..2b2b0df 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -667,7 +667,7 @@
 	 * boundary
 	 */
 
-	.text
+	.section .text.hot
 	.align 2048
 
 ENTRY(fault_vector_20)
diff --git a/arch/parisc/kernel/ftrace.c b/arch/parisc/kernel/ftrace.c
index b13f9ec..a828a0a 100644
--- a/arch/parisc/kernel/ftrace.c
+++ b/arch/parisc/kernel/ftrace.c
@@ -18,12 +18,15 @@
 #include <asm/ftrace.h>
 
 
+#define __hot __attribute__ ((__section__ (".text.hot")))
+
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 /*
  * Hook the return address and push it in the stack of return addrs
  * in current thread info.
  */
-static void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
+static void __hot prepare_ftrace_return(unsigned long *parent,
+					unsigned long self_addr)
 {
 	unsigned long old;
 	struct ftrace_graph_ent trace;
@@ -53,7 +56,7 @@ static void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr
 }
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
 
-void notrace ftrace_function_trampoline(unsigned long parent,
+void notrace __hot ftrace_function_trampoline(unsigned long parent,
 				unsigned long self_addr,
 				unsigned long org_sp_gr3)
 {
--
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From: James Hogan <james.hogan@imgtec.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.kernel.metag,gmane.linux.kernel
Subject: Re: [PATCH] parisc,metag: Implement CONFIG_DEBUG_STACK_USAGE option
Date: Fri, 29 Apr 2016 23:04:37 +0100
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Hi Helge,

On Sat, Mar 19, 2016 at 05:54:10PM +0100, Helge Deller wrote:
> On parisc and metag the stack grows upwards, so for those we need to
> scan the stack downwards in order to calculate how much stack a process
> has used.
>=20
> Tested on a 64bit parisc kernel.
>=20
> Signed-off-by: Helge Deller <deller@gmx.de>

Looks good, and works on metag too!

Tested-by: James Hogan <james.hogan@imgtec.com>
Acked-by: James Hogan <james.hogan@imgtec.com>

Cheers
James

>=20
> diff --git a/include/linux/sched.h b/include/linux/sched.h
> index 084ed9f..71591f3 100644
> --- a/include/linux/sched.h
> +++ b/include/linux/sched.h
> @@ -2859,10 +2859,18 @@ static inline unsigned long stack_not_used(struct=
 task_struct *p)
>  	unsigned long *n =3D end_of_stack(p);
> =20
>  	do { 	/* Skip over canary */
> +# ifdef CONFIG_STACK_GROWSUP
> +		n--;
> +# else
>  		n++;
> +# endif
>  	} while (!*n);
> =20
> +# ifdef CONFIG_STACK_GROWSUP
> +	return (unsigned long)end_of_stack(p) - (unsigned long)n;
> +# else
>  	return (unsigned long)n - (unsigned long)end_of_stack(p);
> +# endif
>  }
>  #endif
>  extern void set_task_stack_end_magic(struct task_struct *tsk);
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index f28f7fa..901f96c 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -546,7 +546,7 @@ config DEBUG_KMEMLEAK_DEFAULT_OFF
> =20
>  config DEBUG_STACK_USAGE
>  	bool "Stack utilization instrumentation"
> -	depends on DEBUG_KERNEL && !IA64 && !PARISC && !METAG
> +	depends on DEBUG_KERNEL && !IA64
>  	help
>  	  Enables the display of the minimum amount of free stack which each
>  	  task has ever had available in the sysrq-T and sysrq-P debug output.

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From - Thu Nov 08 21:38:51 2018
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Newsgroups: gmane.comp.lib.libseccomp.general,gmane.linux.ports.parisc
Subject: Re: [PATCH] libseccomp: Add parisc architecture support (v3)
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Xref: news.gmane.org gmane.comp.lib.libseccomp.general:1359 gmane.linux.ports.parisc:26743
Archived-At: <http://permalink.gmane.org/gmane.comp.lib.libseccomp.general/1359>

Hi Paul,

On 15.04.2016 17:11, Helge Deller wrote:
> This patch (v3) adds support for the parisc and parisc64 architectures
> to libseccomp.

Linux kernel 4.5.2-1 with full seccomp support for parisc/hppa is
now publically available in debian:
https://buildd.debian.org/status/package.php?p=linux&suite=sid

Any chance to get this patch (v3) applied to the libseccomp git tree now ?

Thanks,
Helge

> I didn't split up the patch, because it's pretty trivial.
> Those parisc-specific files gets added:
>  src/arch-parisc-syscalls.c
>  src/arch-parisc.c
>  src/arch-parisc.h
>  src/arch-parisc64.c
> 
> All other changes are trivial because they simply add parisc-specific
> case statements in variouse switch statements.
> 
> I did ran a "make check" on parisc and all testcases suceeded.
> All live testcases succeed as well when running "./regression -T live".
> 
> The patch applies cleanly to current libseccomp git head.
> 
> Changes between v2 and v1 of this patch:
> - Enabled seccomp mode 2 regression tests on parisc. Kernel support for hppa
>   was added in kernel 4.6-rc1 and backported into the kernel v4.5.2 stable
>   series.
> 
> Changes between v3 and v2 of this patch:
> - Stipped out patch which reports if a check was skipped because valgrind
>   isn't installed.
> - Added tuxcall pseudo syscall for 19-sim-missing_syscalls testcase
> - Added sysmips pseudo syscall for 29-sim-pseudo_syscall testcase
> 
> Thanks,
> Helge
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diffstat:
>  include/seccomp.h.in              |    6 
>  src/Makefile.am                   |    2 
>  src/arch-parisc-syscalls.c        |  424 ++++++++++++++++++++++++++++++++++++++
>  src/arch-parisc.c                 |   22 +
>  src/arch-parisc.h                 |   38 +++
>  src/arch-parisc64.c               |   22 +
>  src/arch-syscall-dump.c           |    5 
>  src/arch.c                        |   13 +
>  src/gen_pfc.c                     |    4 
>  src/python/libseccomp.pxd         |    2 
>  src/python/seccomp.pyx            |    8 
>  tests/26-sim-arch_all_be_basic.c  |    6 
>  tests/26-sim-arch_all_be_basic.py |    2 
>  tests/regression                  |    3 
>  tools/scmp_arch_detect.c          |    6 
>  tools/scmp_bpf_sim.c              |    4 
>  tools/util.c                      |    4 
>  17 files changed, 570 insertions(+), 1 deletion(-)
> 
> diff --git a/include/seccomp.h.in b/include/seccomp.h.in
> index 6bf6751..5b9057f 100644
> --- a/include/seccomp.h.in
> +++ b/include/seccomp.h.in
> @@ -185,6 +185,12 @@ struct scmp_arg_cmp {
>  #define SCMP_ARCH_S390X		AUDIT_ARCH_S390X
>  
>  /**
> + * The PA-RISC hppa architecture tokens
> + */
> +#define SCMP_ARCH_PARISC	AUDIT_ARCH_PARISC
> +#define SCMP_ARCH_PARISC64	AUDIT_ARCH_PARISC64
> +
> +/**
>   * Convert a syscall name into the associated syscall number
>   * @param x the syscall name
>   */
> diff --git a/src/Makefile.am b/src/Makefile.am
> index c2d805e..dcc79d9 100644
> --- a/src/Makefile.am
> +++ b/src/Makefile.am
> @@ -35,6 +35,8 @@ SOURCES_ALL = \
>  	arch-mips.h arch-mips.c arch-mips-syscalls.c \
>  	arch-mips64.h arch-mips64.c arch-mips64-syscalls.c \
>  	arch-mips64n32.h arch-mips64n32.c arch-mips64n32-syscalls.c \
> +	arch-parisc.h arch-parisc.c arch-parisc-syscalls.c \
> +	arch-parisc64.h arch-parisc64.c \
>  	arch-ppc.h arch-ppc.c arch-ppc-syscalls.c \
>  	arch-ppc64.h arch-ppc64.c arch-ppc64-syscalls.c \
>  	arch-s390.h arch-s390.c arch-s390-syscalls.c \
> diff --git a/src/arch-parisc-syscalls.c b/src/arch-parisc-syscalls.c
> new file mode 100644
> index 0000000..78474e1
> --- /dev/null
> +++ b/src/arch-parisc-syscalls.c
> @@ -0,0 +1,424 @@
> +/*
> + * Copyright 2016
> + * Author: Helge Deller <deller@gmx.de>
> + */
> +
> +#include <string.h>
> +
> +#include <seccomp.h>
> +
> +#include "arch.h"
> +#include "arch-parisc.h"
> +
> +#ifndef __NR_Linux
> +#define __NR_Linux 0
> +#endif
> +
> +/* NOTE: based on Linux 4.3 */
> +const struct arch_syscall_def parisc_syscall_table[] = { \
> +	{ "_llseek",	(__NR_Linux + 140) },
> +	{ "_newselect",	(__NR_Linux + 142) },
> +	{ "_sysctl",	(__NR_Linux + 149) },
> +	{ "accept4",	(__NR_Linux + 320) },
> +	{ "accept",	(__NR_Linux + 35) },
> +	{ "access",	(__NR_Linux + 33) },
> +	{ "acct",	(__NR_Linux + 51) },
> +	{ "acl_get",	(__NR_Linux + 204) },
> +	{ "acl_set",	(__NR_Linux + 205) },
> +	{ "add_key",	(__NR_Linux + 264) },
> +	{ "adjtimex",	(__NR_Linux + 124) },
> +	{ "afs_syscall",	(__NR_Linux + 137) },
> +	{ "alarm",	(__NR_Linux + 27) },
> +	{ "alloc_hugepages",	(__NR_Linux + 220) },
> +	{ "attrctl",	(__NR_Linux + 203) },
> +	{ "bdflush",	(__NR_Linux + 134) },
> +	{ "bind",	(__NR_Linux + 22) },
> +	{ "bpf",	(__NR_Linux + 341) },
> +	{ "brk",	(__NR_Linux + 45) },
> +	{ "capget",	(__NR_Linux + 106) },
> +	{ "capset",	(__NR_Linux + 107) },
> +	{ "chdir",	(__NR_Linux + 12) },
> +	{ "chmod",	(__NR_Linux + 15) },
> +	{ "chown",	(__NR_Linux + 180) },
> +	{ "chroot",	(__NR_Linux + 61) },
> +	{ "clock_adjtime",	(__NR_Linux + 324) },
> +	{ "clock_getres",	(__NR_Linux + 257) },
> +	{ "clock_gettime",	(__NR_Linux + 256) },
> +	{ "clock_nanosleep",	(__NR_Linux + 258) },
> +	{ "clock_settime",	(__NR_Linux + 255) },
> +	{ "clone",	(__NR_Linux + 120) },
> +	{ "close",	(__NR_Linux + 6) },
> +	{ "connect",	(__NR_Linux + 31) },
> +	{ "create_module",	(__NR_Linux + 127) },
> +	{ "creat",	(__NR_Linux + 8) },
> +	{ "delete_module",	(__NR_Linux + 129) },
> +	{ "dup2",	(__NR_Linux + 63) },
> +	{ "dup3",	(__NR_Linux + 312) },
> +	{ "dup",	(__NR_Linux + 41) },
> +	{ "epoll_create1",	(__NR_Linux + 311) },
> +	{ "epoll_create",	(__NR_Linux + 224) },
> +	{ "epoll_ctl",	(__NR_Linux + 225) },
> +	{ "epoll_pwait",	(__NR_Linux + 297) },
> +	{ "epoll_wait",	(__NR_Linux + 226) },
> +	{ "eventfd2",	(__NR_Linux + 310) },
> +	{ "eventfd",	(__NR_Linux + 304) },
> +	{ "execveat",	(__NR_Linux + 342) },
> +	{ "execve",	(__NR_Linux + 11) },
> +	{ "exit_group",	(__NR_Linux + 222) },
> +	{ "exit",	(__NR_Linux + 1) },
> +	{ "faccessat",	(__NR_Linux + 287) },
> +	{ "fadvise64_64",	(__NR_Linux + 236) },
> +	{ "fallocate",	(__NR_Linux + 305) },
> +	{ "fanotify_init",	(__NR_Linux + 322) },
> +	{ "fanotify_mark",	(__NR_Linux + 323) },
> +	{ "fchdir",	(__NR_Linux + 133) },
> +	{ "fchmodat",	(__NR_Linux + 286) },
> +	{ "fchmod",	(__NR_Linux + 94) },
> +	{ "fchownat",	(__NR_Linux + 278) },
> +	{ "fchown",	(__NR_Linux + 95) },
> +	{ "fcntl64",	(__NR_Linux + 202) },
> +	{ "fcntl",	(__NR_Linux + 55) },
> +	{ "fdatasync",	(__NR_Linux + 148) },
> +	{ "fgetxattr",	(__NR_Linux + 243) },
> +	{ "finit_module",	(__NR_Linux + 333) },
> +	{ "flistxattr",	(__NR_Linux + 246) },
> +	{ "flock",	(__NR_Linux + 143) },
> +	{ "fork",	(__NR_Linux + 2) },
> +	{ "free_hugepages",	(__NR_Linux + 221) },
> +	{ "fremovexattr",	(__NR_Linux + 249) },
> +	{ "fsetxattr",	(__NR_Linux + 240) },
> +	{ "fstat64",	(__NR_Linux + 112) },
> +	{ "fstatat64",	(__NR_Linux + 280) },
> +	{ "fstatfs64",	(__NR_Linux + 299) },
> +	{ "fstatfs",	(__NR_Linux + 100) },
> +	{ "fstat",	(__NR_Linux + 28) },
> +	{ "fsync",	(__NR_Linux + 118) },
> +	{ "ftruncate64",	(__NR_Linux + 200) },
> +	{ "ftruncate",	(__NR_Linux + 93) },
> +	{ "futex",	(__NR_Linux + 210) },
> +	{ "futimesat",	(__NR_Linux + 279) },
> +	{ "getcpu",	(__NR_Linux + 296) },
> +	{ "getcwd",	(__NR_Linux + 110) },
> +	{ "getdents64",	(__NR_Linux + 201) },
> +	{ "getdents",	(__NR_Linux + 141) },
> +	{ "getegid",	(__NR_Linux + 50) },
> +	{ "geteuid",	(__NR_Linux + 49) },
> +	{ "getgid",	(__NR_Linux + 47) },
> +	{ "getgroups",	(__NR_Linux + 80) },
> +	{ "getitimer",	(__NR_Linux + 105) },
> +	{ "get_kernel_syms",	(__NR_Linux + 130) },
> +	{ "get_mempolicy",	(__NR_Linux + 261) },
> +	{ "getpeername",	(__NR_Linux + 53) },
> +	{ "getpgid",	(__NR_Linux + 132) },
> +	{ "getpgrp",	(__NR_Linux + 65) },
> +	{ "getpid",	(__NR_Linux + 20) },
> +	{ "getpmsg",	(__NR_Linux + 196) },
> +	{ "getppid",	(__NR_Linux + 64) },
> +	{ "getpriority",	(__NR_Linux + 96) },
> +	{ "getrandom",	(__NR_Linux + 339) },
> +	{ "getresgid",	(__NR_Linux + 171) },
> +	{ "getresuid",	(__NR_Linux + 165) },
> +	{ "getrlimit",	(__NR_Linux + 76) },
> +	{ "get_robust_list",	(__NR_Linux + 290) },
> +	{ "getrusage",	(__NR_Linux + 77) },
> +	{ "getsid",	(__NR_Linux + 147) },
> +	{ "getsockname",	(__NR_Linux + 44) },
> +	{ "getsockopt",	(__NR_Linux + 182) },
> +	{ "get_thread_area",	(__NR_Linux + 214) },
> +	{ "gettid",	(__NR_Linux + 206) },
> +	{ "gettimeofday",	(__NR_Linux + 78) },
> +	{ "getuid",	(__NR_Linux + 24) },
> +	{ "getxattr",	(__NR_Linux + 241) },
> +	{ "init_module",	(__NR_Linux + 128) },
> +	{ "inotify_add_watch",	(__NR_Linux + 270) },
> +	{ "inotify_init1",	(__NR_Linux + 314) },
> +	{ "inotify_init",	(__NR_Linux + 269) },
> +	{ "inotify_rm_watch",	(__NR_Linux + 271) },
> +	{ "io_cancel",	(__NR_Linux + 219) },
> +	{ "ioctl",	(__NR_Linux + 54) },
> +	{ "io_destroy",	(__NR_Linux + 216) },
> +	{ "io_getevents",	(__NR_Linux + 217) },
> +	{ "ioprio_get",	(__NR_Linux + 268) },
> +	{ "ioprio_set",	(__NR_Linux + 267) },
> +	{ "io_setup",	(__NR_Linux + 215) },
> +	{ "io_submit",	(__NR_Linux + 218) },
> +	{ "kcmp",	(__NR_Linux + 332) },
> +	{ "kexec_load",	(__NR_Linux + 300) },
> +	{ "keyctl",	(__NR_Linux + 266) },
> +	{ "kill",	(__NR_Linux + 37) },
> +	{ "lchown",	(__NR_Linux + 16) },
> +	{ "lgetxattr",	(__NR_Linux + 242) },
> +	{ "linkat",	(__NR_Linux + 283) },
> +	{ "link",	(__NR_Linux + 9) },
> +	{ "listen",	(__NR_Linux + 32) },
> +	{ "listxattr",	(__NR_Linux + 244) },
> +	{ "llistxattr",	(__NR_Linux + 245) },
> +	{ "lookup_dcookie",	(__NR_Linux + 223) },
> +	{ "lremovexattr",	(__NR_Linux + 248) },
> +	{ "lseek",	(__NR_Linux + 19) },
> +	{ "lsetxattr",	(__NR_Linux + 239) },
> +	{ "lstat64",	(__NR_Linux + 198) },
> +	{ "lstat",	(__NR_Linux + 84) },
> +	{ "madvise",	(__NR_Linux + 119) },
> +	{ "mbind",	(__NR_Linux + 260) },
> +	{ "memfd_create",	(__NR_Linux + 340) },
> +	{ "migrate_pages",	(__NR_Linux + 272) },
> +	{ "mincore",	(__NR_Linux + 72) },
> +	{ "mkdirat",	(__NR_Linux + 276) },
> +	{ "mkdir",	(__NR_Linux + 39) },
> +	{ "mknodat",	(__NR_Linux + 277) },
> +	{ "mknod",	(__NR_Linux + 14) },
> +	{ "mlockall",	(__NR_Linux + 152) },
> +	{ "mlock",	(__NR_Linux + 150) },
> +	{ "mmap2",	(__NR_Linux + 89) },
> +	{ "mmap",	(__NR_Linux + 90) },
> +	{ "mount",	(__NR_Linux + 21) },
> +	{ "move_pages",	(__NR_Linux + 295) },
> +	{ "mprotect",	(__NR_Linux + 125) },
> +	{ "mq_getsetattr",	(__NR_Linux + 234) },
> +	{ "mq_notify",	(__NR_Linux + 233) },
> +	{ "mq_open",	(__NR_Linux + 229) },
> +	{ "mq_timedreceive",	(__NR_Linux + 232) },
> +	{ "mq_timedsend",	(__NR_Linux + 231) },
> +	{ "mq_unlink",	(__NR_Linux + 230) },
> +	{ "mremap",	(__NR_Linux + 163) },
> +	{ "msgctl",	(__NR_Linux + 191) },
> +	{ "msgget",	(__NR_Linux + 190) },
> +	{ "msgrcv",	(__NR_Linux + 189) },
> +	{ "msgsnd",	(__NR_Linux + 188) },
> +	{ "msync",	(__NR_Linux + 144) },
> +	{ "munlockall",	(__NR_Linux + 153) },
> +	{ "munlock",	(__NR_Linux + 151) },
> +	{ "munmap",	(__NR_Linux + 91) },
> +	{ "name_to_handle_at",	(__NR_Linux + 325) },
> +	{ "nanosleep",	(__NR_Linux + 162) },
> +	{ "nfsservctl",	(__NR_Linux + 169) },
> +	{ "nice",	(__NR_Linux + 34) },
> +	{ "openat",	(__NR_Linux + 275) },
> +	{ "open_by_handle_at",	(__NR_Linux + 326) },
> +	{ "open",	(__NR_Linux + 5) },
> +	{ "pause",	(__NR_Linux + 29) },
> +	{ "perf_event_open",	(__NR_Linux + 318) },
> +	{ "personality",	(__NR_Linux + 136) },
> +	{ "pipe2",	(__NR_Linux + 313) },
> +	{ "pipe",	(__NR_Linux + 42) },
> +	{ "pivot_root",	(__NR_Linux + 67) },
> +	{ "poll",	(__NR_Linux + 168) },
> +	{ "ppoll",	(__NR_Linux + 274) },
> +	{ "prctl",	(__NR_Linux + 172) },
> +	{ "pread64",	(__NR_Linux + 108) },
> +	{ "preadv",	(__NR_Linux + 315) },
> +	{ "prlimit64",	(__NR_Linux + 321) },
> +	{ "process_vm_readv",	(__NR_Linux + 330) },
> +	{ "process_vm_writev",	(__NR_Linux + 331) },
> +	{ "pselect6",	(__NR_Linux + 273) },
> +	{ "ptrace",	(__NR_Linux + 26) },
> +	{ "putpmsg",	(__NR_Linux + 197) },
> +	{ "pwrite64",	(__NR_Linux + 109) },
> +	{ "pwritev",	(__NR_Linux + 316) },
> +	{ "query_module",	(__NR_Linux + 167) },
> +	{ "quotactl",	(__NR_Linux + 131) },
> +	{ "readahead",	(__NR_Linux + 207) },
> +	{ "readlinkat",	(__NR_Linux + 285) },
> +	{ "readlink",	(__NR_Linux + 85) },
> +	{ "read",	(__NR_Linux + 3) },
> +	{ "readv",	(__NR_Linux + 145) },
> +	{ "reboot",	(__NR_Linux + 88) },
> +	{ "recvfrom",	(__NR_Linux + 123) },
> +	{ "recvmmsg",	(__NR_Linux + 319) },
> +	{ "recvmsg",	(__NR_Linux + 184) },
> +	{ "recv",	(__NR_Linux + 98) },
> +	{ "remap_file_pages",	(__NR_Linux + 227) },
> +	{ "removexattr",	(__NR_Linux + 247) },
> +	{ "renameat2",	(__NR_Linux + 337) },
> +	{ "renameat",	(__NR_Linux + 282) },
> +	{ "rename",	(__NR_Linux + 38) },
> +	{ "request_key",	(__NR_Linux + 265) },
> +	{ "restart_syscall",	(__NR_Linux + 0) },
> +	{ "rmdir",	(__NR_Linux + 40) },
> +	{ "rt_sigaction",	(__NR_Linux + 174) },
> +	{ "rt_sigpending",	(__NR_Linux + 176) },
> +	{ "rt_sigprocmask",	(__NR_Linux + 175) },
> +	{ "rt_sigqueueinfo",	(__NR_Linux + 178) },
> +	{ "rt_sigreturn",	(__NR_Linux + 173) },
> +	{ "rt_sigsuspend",	(__NR_Linux + 179) },
> +	{ "rt_sigtimedwait",	(__NR_Linux + 177) },
> +	{ "rt_tgsigqueueinfo",	(__NR_Linux + 317) },
> +	{ "sched_getaffinity",	(__NR_Linux + 212) },
> +	{ "sched_getattr",	(__NR_Linux + 335) },
> +	{ "sched_getparam",	(__NR_Linux + 155) },
> +	{ "sched_get_priority_max",	(__NR_Linux + 159) },
> +	{ "sched_get_priority_min",	(__NR_Linux + 160) },
> +	{ "sched_getscheduler",	(__NR_Linux + 157) },
> +	{ "sched_rr_get_interval",	(__NR_Linux + 161) },
> +	{ "sched_setaffinity",	(__NR_Linux + 211) },
> +	{ "sched_setattr",	(__NR_Linux + 334) },
> +	{ "sched_setparam",	(__NR_Linux + 154) },
> +	{ "sched_setscheduler",	(__NR_Linux + 156) },
> +	{ "sched_yield",	(__NR_Linux + 158) },
> +	{ "seccomp",	(__NR_Linux + 338) },
> +	{ "semctl",	(__NR_Linux + 187) },
> +	{ "semget",	(__NR_Linux + 186) },
> +	{ "semop",	(__NR_Linux + 185) },
> +	{ "semtimedop",	(__NR_Linux + 228) },
> +	{ "sendfile64",	(__NR_Linux + 209) },
> +	{ "sendfile",	(__NR_Linux + 122) },
> +	{ "sendmmsg",	(__NR_Linux + 329) },
> +	{ "sendmsg",	(__NR_Linux + 183) },
> +	{ "send",	(__NR_Linux + 58) },
> +	{ "sendto",	(__NR_Linux + 82) },
> +	{ "setdomainname",	(__NR_Linux + 121) },
> +	{ "setfsgid",	(__NR_Linux + 139) },
> +	{ "setfsuid",	(__NR_Linux + 138) },
> +	{ "setgid",	(__NR_Linux + 46) },
> +	{ "setgroups",	(__NR_Linux + 81) },
> +	{ "sethostname",	(__NR_Linux + 74) },
> +	{ "setitimer",	(__NR_Linux + 104) },
> +	{ "set_mempolicy",	(__NR_Linux + 262) },
> +	{ "setns",	(__NR_Linux + 328) },
> +	{ "setpgid",	(__NR_Linux + 57) },
> +	{ "setpriority",	(__NR_Linux + 97) },
> +	{ "setregid",	(__NR_Linux + 71) },
> +	{ "setresgid",	(__NR_Linux + 170) },
> +	{ "setresuid",	(__NR_Linux + 164) },
> +	{ "setreuid",	(__NR_Linux + 70) },
> +	{ "setrlimit",	(__NR_Linux + 75) },
> +	{ "set_robust_list",	(__NR_Linux + 289) },
> +	{ "setsid",	(__NR_Linux + 66) },
> +	{ "setsockopt",	(__NR_Linux + 181) },
> +	{ "set_thread_area",	(__NR_Linux + 213) },
> +	{ "set_tid_address",	(__NR_Linux + 237) },
> +	{ "settimeofday",	(__NR_Linux + 79) },
> +	{ "setuid",	(__NR_Linux + 23) },
> +	{ "setxattr",	(__NR_Linux + 238) },
> +	{ "sgetmask",	(__NR_Linux + 68) },
> +	{ "shmat",	(__NR_Linux + 192) },
> +	{ "shmctl",	(__NR_Linux + 195) },
> +	{ "shmdt",	(__NR_Linux + 193) },
> +	{ "shmget",	(__NR_Linux + 194) },
> +	{ "shutdown",	(__NR_Linux + 117) },
> +	{ "sigaltstack",	(__NR_Linux + 166) },
> +	{ "signalfd4",	(__NR_Linux + 309) },
> +	{ "signalfd",	(__NR_Linux + 302) },
> +	{ "signal",	(__NR_Linux + 48) },
> +	{ "sigpending",	(__NR_Linux + 73) },
> +	{ "sigprocmask",	(__NR_Linux + 126) },
> +	{ "socket",	(__NR_Linux + 17) },
> +	{ "socketpair",	(__NR_Linux + 56) },
> +	{ "splice",	(__NR_Linux + 291) },
> +	{ "ssetmask",	(__NR_Linux + 69) },
> +	{ "stat64",	(__NR_Linux + 101) },
> +	{ "statfs64",	(__NR_Linux + 298) },
> +	{ "statfs",	(__NR_Linux + 99) },
> +	{ "stat",	(__NR_Linux + 18) },
> +	{ "stime",	(__NR_Linux + 25) },
> +	{ "swapoff",	(__NR_Linux + 115) },
> +	{ "swapon",	(__NR_Linux + 87) },
> +	{ "symlinkat",	(__NR_Linux + 284) },
> +	{ "symlink",	(__NR_Linux + 83) },
> +	{ "sync_file_range",	(__NR_Linux + 292) },
> +	{ "syncfs",	(__NR_Linux + 327) },
> +	{ "sync",	(__NR_Linux + 36) },
> +	{ "sysfs",	(__NR_Linux + 135) },
> +	{ "sysmips",	__PNR_sysmips },
> +	{ "sysinfo",	(__NR_Linux + 116) },
> +	{ "syslog",	(__NR_Linux + 103) },
> +	{ "tee",	(__NR_Linux + 293) },
> +	{ "tgkill",	(__NR_Linux + 259) },
> +	{ "time",	(__NR_Linux + 13) },
> +	{ "timer_create",	(__NR_Linux + 250) },
> +	{ "timer_delete",	(__NR_Linux + 254) },
> +	{ "timerfd_create",	(__NR_Linux + 306) },
> +	{ "timerfd_gettime",	(__NR_Linux + 308) },
> +	{ "timerfd",	(__NR_Linux + 303) },
> +	{ "timerfd_settime",	(__NR_Linux + 307) },
> +	{ "timer_getoverrun",	(__NR_Linux + 253) },
> +	{ "timer_gettime",	(__NR_Linux + 252) },
> +	{ "timer_settime",	(__NR_Linux + 251) },
> +	{ "times",	(__NR_Linux + 43) },
> +	{ "tkill",	(__NR_Linux + 208) },
> +	{ "truncate64",	(__NR_Linux + 199) },
> +	{ "truncate",	(__NR_Linux + 92) },
> +	{ "tuxcall",	__PNR_tuxcall },
> +	{ "umask",	(__NR_Linux + 60) },
> +	{ "umount2",	(__NR_Linux + 52) },
> +	{ "uname",	(__NR_Linux + 59) },
> +	{ "unlinkat",	(__NR_Linux + 281) },
> +	{ "unlink",	(__NR_Linux + 10) },
> +	{ "unshare",	(__NR_Linux + 288) },
> +	{ "uselib",	(__NR_Linux + 86) },
> +	{ "ustat",	(__NR_Linux + 62) },
> +	{ "utime",	(__NR_Linux + 30) },
> +	{ "utimensat",	(__NR_Linux + 301) },
> +	{ "utimes",	(__NR_Linux + 336) },
> +	{ "vfork",	(__NR_Linux + 113) },
> +	{ "vhangup",	(__NR_Linux + 111) },
> +	{ "vmsplice",	(__NR_Linux + 294) },
> +	{ "vserver",	(__NR_Linux + 263) },
> +	{ "wait4",	(__NR_Linux + 114) },
> +	{ "waitid",	(__NR_Linux + 235) },
> +	{ "waitpid",	(__NR_Linux + 7) },
> +	{ "write",	(__NR_Linux + 4) },
> +	{ "writev",	(__NR_Linux + 146) },
> +	{ NULL, __NR_SCMP_ERROR },
> +};
> +
> +/**
> + * Resolve a syscall name to a number
> + * @param name the syscall name
> + *
> + * Resolve the given syscall name to the syscall number using the syscall table.
> + * Returns the syscall number on success, including negative pseudo syscall
> + * numbers; returns __NR_SCMP_ERROR on failure.
> + *
> + */
> +int parisc_syscall_resolve_name(const char *name)
> +{
> +	unsigned int iter;
> +	const struct arch_syscall_def *table = parisc_syscall_table;
> +
> +	/* XXX - plenty of room for future improvement here */
> +	for (iter = 0; table[iter].name != NULL; iter++) {
> +		if (strcmp(name, table[iter].name) == 0)
> +			return table[iter].num;
> +	}
> +
> +	return __NR_SCMP_ERROR;
> +}
> +
> +/**
> + * Resolve a syscall number to a name
> + * @param num the syscall number
> + *
> + * Resolve the given syscall number to the syscall name using the syscall table.
> + * Returns a pointer to the syscall name string on success, including pseudo
> + * syscall names; returns NULL on failure.
> + *
> + */
> +const char *parisc_syscall_resolve_num(int num)
> +{
> +	unsigned int iter;
> +	const struct arch_syscall_def *table = parisc_syscall_table;
> +
> +	/* XXX - plenty of room for future improvement here */
> +	for (iter = 0; table[iter].num != __NR_SCMP_ERROR; iter++) {
> +		if (num == table[iter].num)
> +			return table[iter].name;
> +	}
> +
> +	return NULL;
> +}
> +
> +/**
> + * Iterate through the syscall table and return the syscall name
> + * @param spot the offset into the syscall table
> + *
> + * Return the syscall name at position @spot or NULL on failure.  This function
> + * should only ever be used internally by libseccomp.
> + *
> + */
> +const char *parisc_syscall_iterate_name(unsigned int spot)
> +{
> +	/* XXX - no safety checks here */
> +	return parisc_syscall_table[spot].name;
> +}
> diff --git a/src/arch-parisc.c b/src/arch-parisc.c
> new file mode 100644
> index 0000000..6407f8a
> --- /dev/null
> +++ b/src/arch-parisc.c
> @@ -0,0 +1,22 @@
> +/*
> + * Copyright 2016
> + * Author: Helge Deller <deller@gmx.de>
> + */
> +
> +#include <stdlib.h>
> +#include <errno.h>
> +#include <linux/audit.h>
> +
> +#include "arch.h"
> +#include "arch-parisc.h"
> +
> +const struct arch_def arch_def_parisc = {
> +	.token = SCMP_ARCH_PARISC,
> +	.token_bpf = AUDIT_ARCH_PARISC,
> +	.size = ARCH_SIZE_32,
> +	.endian = ARCH_ENDIAN_BIG,
> +	.syscall_resolve_name = parisc_syscall_resolve_name,
> +	.syscall_resolve_num = parisc_syscall_resolve_num,
> +	.syscall_rewrite = NULL,
> +	.rule_add = NULL,
> +};
> diff --git a/src/arch-parisc.h b/src/arch-parisc.h
> new file mode 100644
> index 0000000..b9fe1df
> --- /dev/null
> +++ b/src/arch-parisc.h
> @@ -0,0 +1,38 @@
> +/**
> + * Enhanced Seccomp PARISC Specific Code
> + *
> + * Copyright (c) 2016 Helge Deller <deller@gmx.de>
> + *
> + */
> +
> +/*
> + * This library is free software; you can redistribute it and/or modify it
> + * under the terms of version 2.1 of the GNU Lesser General Public License as
> + * published by the Free Software Foundation.
> + *
> + * This library is distributed in the hope that it will be useful, but WITHOUT
> + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
> + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
> + * for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public License
> + * along with this library; if not, see <http://www.gnu.org/licenses>.
> + */
> +
> +#ifndef _ARCH_PARISC_H
> +#define _ARCH_PARISC_H
> +
> +#include <inttypes.h>
> +
> +#include "arch.h"
> +#include "system.h"
> +
> +extern const struct arch_def arch_def_parisc;
> +extern const struct arch_def arch_def_parisc64;
> +
> +int parisc_syscall_resolve_name(const char *name);
> +const char *parisc_syscall_resolve_num(int num);
> +
> +const char *parisc_syscall_iterate_name(unsigned int spot);
> +
> +#endif
> diff --git a/src/arch-parisc64.c b/src/arch-parisc64.c
> new file mode 100644
> index 0000000..b75a182
> --- /dev/null
> +++ b/src/arch-parisc64.c
> @@ -0,0 +1,22 @@
> +/*
> + * Copyright 2016
> + * Author: Helge Deller <deller@gmx.de>
> +*/
> +
> +#include <stdlib.h>
> +#include <errno.h>
> +#include <linux/audit.h>
> +
> +#include "arch.h"
> +#include "arch-parisc.h"
> +
> +const struct arch_def arch_def_parisc64 = {
> +	.token = SCMP_ARCH_PARISC64,
> +	.token_bpf = AUDIT_ARCH_PARISC64,
> +	.size = ARCH_SIZE_64,
> +	.endian = ARCH_ENDIAN_BIG,
> +	.syscall_resolve_name = parisc_syscall_resolve_name,
> +	.syscall_resolve_num = parisc_syscall_resolve_num,
> +	.syscall_rewrite = NULL,
> +	.rule_add = NULL,
> +};
> diff --git a/src/arch-syscall-dump.c b/src/arch-syscall-dump.c
> index 636fd9a..c95b899 100644
> --- a/src/arch-syscall-dump.c
> +++ b/src/arch-syscall-dump.c
> @@ -38,6 +38,7 @@
>  #include "arch-mips64.h"
>  #include "arch-mips64n32.h"
>  #include "arch-aarch64.h"
> +#include "arch-parisc.h"
>  #include "arch-ppc.h"
>  #include "arch-ppc64.h"
>  #include "arch-s390.h"
> @@ -116,6 +117,10 @@ int main(int argc, char *argv[])
>  		case SCMP_ARCH_MIPSEL64N32:
>  			sys_name = mips64n32_syscall_iterate_name(iter);
>  			break;
> +		case SCMP_ARCH_PARISC:
> +		case SCMP_ARCH_PARISC64:
> +			sys_name = parisc_syscall_iterate_name(iter);
> +			break;
>  		case SCMP_ARCH_PPC:
>  			sys_name = ppc_syscall_iterate_name(iter);
>  			break;
> diff --git a/src/arch.c b/src/arch.c
> index 0f24d1c..f5a898d 100644
> --- a/src/arch.c
> +++ b/src/arch.c
> @@ -38,6 +38,7 @@
>  #include "arch-mips.h"
>  #include "arch-mips64.h"
>  #include "arch-mips64n32.h"
> +#include "arch-parisc.h"
>  #include "arch-ppc.h"
>  #include "arch-ppc64.h"
>  #include "arch-s390.h"
> @@ -79,6 +80,10 @@ const struct arch_def *arch_def_native = &arch_def_mips64n32;
>  #elif __MIPSEL__
>  const struct arch_def *arch_def_native = &arch_def_mipsel64n32;
>  #endif /* _MIPS_SIM_NABI32 */
> +#elif __hppa64__ /* hppa64 must be checked before hppa */
> +const struct arch_def *arch_def_native = &arch_def_parisc64;
> +#elif __hppa__
> +const struct arch_def *arch_def_native = &arch_def_parisc;
>  #elif __PPC64__
>  #ifdef __BIG_ENDIAN__
>  const struct arch_def *arch_def_native = &arch_def_ppc64;
> @@ -139,6 +144,10 @@ const struct arch_def *arch_def_lookup(uint32_t token)
>  		return &arch_def_mips64n32;
>  	case SCMP_ARCH_MIPSEL64N32:
>  		return &arch_def_mipsel64n32;
> +	case SCMP_ARCH_PARISC:
> +		return &arch_def_parisc;
> +	case SCMP_ARCH_PARISC64:
> +		return &arch_def_parisc64;
>  	case SCMP_ARCH_PPC:
>  		return &arch_def_ppc;
>  	case SCMP_ARCH_PPC64:
> @@ -185,6 +194,10 @@ const struct arch_def *arch_def_lookup_name(const char *arch_name)
>  		return &arch_def_mips64n32;
>  	else if (strcmp(arch_name, "mipsel64n32") == 0)
>  		return &arch_def_mipsel64n32;
> +	else if (strcmp(arch_name, "parisc64") == 0)
> +		return &arch_def_parisc64;
> +	else if (strcmp(arch_name, "parisc") == 0)
> +		return &arch_def_parisc;
>  	else if (strcmp(arch_name, "ppc") == 0)
>  		return &arch_def_ppc;
>  	else if (strcmp(arch_name, "ppc64") == 0)
> diff --git a/src/gen_pfc.c b/src/gen_pfc.c
> index 99c3297..b9c122e 100644
> --- a/src/gen_pfc.c
> +++ b/src/gen_pfc.c
> @@ -71,6 +71,10 @@ static const char *_pfc_arch(const struct arch_def *arch)
>  		return "mips64n32";
>  	case SCMP_ARCH_MIPSEL64N32:
>  		return "mipsel64n32";
> +	case SCMP_ARCH_PARISC:
> +		return "parisc";
> +	case SCMP_ARCH_PARISC64:
> +		return "parisc64";
>  	case SCMP_ARCH_PPC64:
>  		return "ppc64";
>  	case SCMP_ARCH_PPC64LE:
> diff --git a/src/python/libseccomp.pxd b/src/python/libseccomp.pxd
> index 15c94f8..500da15 100644
> --- a/src/python/libseccomp.pxd
> +++ b/src/python/libseccomp.pxd
> @@ -43,6 +43,8 @@ cdef extern from "seccomp.h":
>          SCMP_ARCH_MIPSEL
>          SCMP_ARCH_MIPSEL64
>          SCMP_ARCH_MIPSEL64N32
> +        SCMP_ARCH_PARISC
> +        SCMP_ARCH_PARISC64
>          SCMP_ARCH_PPC
>          SCMP_ARCH_PPC64
>          SCMP_ARCH_PPC64LE
> diff --git a/src/python/seccomp.pyx b/src/python/seccomp.pyx
> index c87bc3f..cb17642 100644
> --- a/src/python/seccomp.pyx
> +++ b/src/python/seccomp.pyx
> @@ -147,6 +147,8 @@ cdef class Arch:
>      MIPSEL - MIPS little endian O32 ABI
>      MIPSEL64 - MIPS little endian 64-bit ABI
>      MIPSEL64N32 - MIPS little endian N32 ABI
> +    PARISC - 32-bit PA-RISC
> +    PARISC64 - 64-bit PA-RISC
>      PPC64 - 64-bit PowerPC
>      PPC - 32-bit PowerPC
>      """
> @@ -165,6 +167,8 @@ cdef class Arch:
>      MIPSEL = libseccomp.SCMP_ARCH_MIPSEL
>      MIPSEL64 = libseccomp.SCMP_ARCH_MIPSEL64
>      MIPSEL64N32 = libseccomp.SCMP_ARCH_MIPSEL64N32
> +    PARISC = libseccomp.SCMP_ARCH_PARISC
> +    PARISC64 = libseccomp.SCMP_ARCH_PARISC64
>      PPC = libseccomp.SCMP_ARCH_PPC
>      PPC64 = libseccomp.SCMP_ARCH_PPC64
>      PPC64LE = libseccomp.SCMP_ARCH_PPC64LE
> @@ -205,6 +209,10 @@ cdef class Arch:
>                  self._token = libseccomp.SCMP_ARCH_MIPSEL64
>              elif arch == libseccomp.SCMP_ARCH_MIPSEL64N32:
>                  self._token = libseccomp.SCMP_ARCH_MIPSEL64N32
> +            elif arch == libseccomp.SCMP_ARCH_PARISC:
> +                self._token = libseccomp.SCMP_ARCH_PARISC
> +            elif arch == libseccomp.SCMP_ARCH_PARISC64:
> +                self._token = libseccomp.SCMP_ARCH_PARISC64
>              elif arch == libseccomp.SCMP_ARCH_PPC:
>                  self._token = libseccomp.SCMP_ARCH_PPC
>              elif arch == libseccomp.SCMP_ARCH_PPC64:
> diff --git a/tests/26-sim-arch_all_be_basic.c b/tests/26-sim-arch_all_be_basic.c
> index d2c191c..d31ce12 100644
> --- a/tests/26-sim-arch_all_be_basic.c
> +++ b/tests/26-sim-arch_all_be_basic.c
> @@ -52,6 +52,12 @@ int main(int argc, char *argv[])
>  	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("mips64n32"));
>  	if (rc != 0)
>  		goto out;
> +	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("parisc"));
> +	if (rc != 0)
> +		goto out;
> +	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("parisc64"));
> +	if (rc != 0)
> +		goto out;
>  	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("ppc"));
>  	if (rc != 0)
>  		goto out;
> diff --git a/tests/26-sim-arch_all_be_basic.py b/tests/26-sim-arch_all_be_basic.py
> index b0b660a..3a177b4 100755
> --- a/tests/26-sim-arch_all_be_basic.py
> +++ b/tests/26-sim-arch_all_be_basic.py
> @@ -33,6 +33,8 @@ def test(args):
>      f.add_arch(Arch("mips"))
>      f.add_arch(Arch("mips64"))
>      f.add_arch(Arch("mips64n32"))
> +    f.add_arch(Arch("parisc"))
> +    f.add_arch(Arch("parisc64"))
>      f.add_arch(Arch("ppc"))
>      f.add_arch(Arch("ppc64"))
>      f.add_arch(Arch("s390"))
> diff --git a/tests/regression b/tests/regression
> index 53d26b2..5949459 100755
> --- a/tests/regression
> +++ b/tests/regression
> @@ -28,6 +28,7 @@ GLBL_ARCH_LE_SUPPORT=" \
>  	ppc64le"
>  GLBL_ARCH_BE_SUPPORT=" \
>  	mips mips64 mips64n32 \
> +	parisc parisc64 \
>  	ppc ppc64 \
>  	s390 s390x"
>  
> @@ -701,7 +702,7 @@ function run_test_live() {
>  
>  	# setup the arch specific return values
>  	case "$arch" in
> -	x86|x86_64|x32|arm|aarch64|ppc|ppc64|ppc64le|ppc|s390|s390x)
> +	x86|x86_64|x32|arm|aarch64|parisc|parisc64|ppc|ppc64|ppc64le|ppc|s390|s390x)
>  		rc_kill=159
>  		rc_allow=160
>  		rc_trap=161
> diff --git a/tools/scmp_arch_detect.c b/tools/scmp_arch_detect.c
> index 4b452d1..ad43f2d 100644
> --- a/tools/scmp_arch_detect.c
> +++ b/tools/scmp_arch_detect.c
> @@ -99,6 +99,12 @@ int main(int argc, char *argv[])
>  		case SCMP_ARCH_MIPSEL64N32:
>  			printf("mipsel64n32\n");
>  			break;
> +		case SCMP_ARCH_PARISC:
> +			printf("parisc\n");
> +			break;
> +		case SCMP_ARCH_PARISC64:
> +			printf("parisc64\n");
> +			break;
>  		case SCMP_ARCH_PPC:
>  			printf("ppc\n");
>  			break;
> diff --git a/tools/scmp_bpf_sim.c b/tools/scmp_bpf_sim.c
> index a0cf6d1..3d3204a 100644
> --- a/tools/scmp_bpf_sim.c
> +++ b/tools/scmp_bpf_sim.c
> @@ -265,6 +265,10 @@ int main(int argc, char *argv[])
>  				arch = AUDIT_ARCH_MIPS64N32;
>  			else if (strcmp(optarg, "mipsel64n32") == 0)
>  				arch = AUDIT_ARCH_MIPSEL64N32;
> +			else if (strcmp(optarg, "parisc") == 0)
> +				arch = AUDIT_ARCH_PARISC;
> +			else if (strcmp(optarg, "parisc64") == 0)
> +				arch = AUDIT_ARCH_PARISC64;
>  			else if (strcmp(optarg, "ppc") == 0)
>  				arch = AUDIT_ARCH_PPC;
>  			else if (strcmp(optarg, "ppc64") == 0)
> diff --git a/tools/util.c b/tools/util.c
> index cc48647..7122335 100644
> --- a/tools/util.c
> +++ b/tools/util.c
> @@ -62,6 +62,10 @@
>  #elif __MIPSEL__
>  #define ARCH_NATIVE		AUDIT_ARCH_MIPSEL64N32
>  #endif /* _MIPS_SIM_NABI32 */
> +#elif __hppa64__
> +#define ARCH_NATIVE		AUDIT_ARCH_PARISC64
> +#elif __hppa__
> +#define ARCH_NATIVE		AUDIT_ARCH_PARISC
>  #elif __PPC64__
>  #ifdef __BIG_ENDIAN__
>  #define ARCH_NATIVE		AUDIT_ARCH_PPC64
> --
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> More majordomo info at  http://vger.kernel.org/majordomo-info.html
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Subject: RFC: parisc regset support
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Hi all,

Earlier this month I posted a patch which adds regset support
to parisc and which I'm planning to push for kernel v4.7:
https://patchwork.kernel.org/patch/8787691/

In this patch is the "new" user-visible regset 
which I've laid out like this:

> +struct user_regs_struct {
> +	unsigned long gr[32];	/* PSW is in gr[0] */
> +	unsigned long sr[8];
> +	unsigned long iaoq[2];
> +	unsigned long iasq[2];
> +	unsigned long sar;	/* CR11 */
> +	unsigned long iir;	/* CR19 */
> +	unsigned long isr;	/* CR20 */
> +	unsigned long ior;	/* CR21 */
> +	unsigned long ipsw;	/* CR22 */
> +	unsigned long cr0;
> +	unsigned long cr24, cr25, cr26, cr27, cr28, cr29, cr30, cr31;
> +	unsigned long cr8, cr9, cr12, cr13, cr10, cr15;
> +	unsigned long _pad[80-64];	/* pad to ELF_NGREG (80) */
> +};

Current glibc versions use this definition in
/usr/include/hppa-linux-gnu/sys/ucontext.h

/* Container for all general registers.  */
typedef struct gregset
  {
    greg_t g_regs[32];
    greg_t sr_regs[8];
    greg_t cr_regs[24]; 
    greg_t g_pad[16];
  } gregset_t;

What is you opinion on this change, e.g. using explicit names of the
control registers and their order?

By the way, the order I choosed is modelled after the in-kernel
ELF/core-dump code which can be seen in  arch/parisc/include/asm/elf.h:

/*
 * Fill in general registers in a core dump.  This saves pretty
 * much the same registers as hp-ux, although in a different order.
 * Registers marked # below are not currently saved in pt_regs, so
 * we use their current values here.
 *
 *      gr0..gr31
 *      sr0..sr7
 *      iaoq0..iaoq1
 *      iasq0..iasq1
 *      cr11 (sar)
 *      cr19 (iir)
 *      cr20 (isr)
 *      cr21 (ior)
 *  #   cr22 (ipsw)
 *  #   cr0 (recovery counter)
 *  #   cr24..cr31 (temporary registers)
 *  #   cr8,9,12,13 (protection IDs)
 *  #   cr10 (scr/ccr)
 *  #   cr15 (ext int enable mask)
 *
 */

#define ELF_CORE_COPY_REGS(dst, pt)     \
        memset(dst, 0, sizeof(dst));    /* don't leak any "random" bits */ \
        memcpy(dst + 0, pt->gr, 32 * sizeof(elf_greg_t)); \
        memcpy(dst + 32, pt->sr, 8 * sizeof(elf_greg_t)); \
        memcpy(dst + 40, pt->iaoq, 2 * sizeof(elf_greg_t)); \
        memcpy(dst + 42, pt->iasq, 2 * sizeof(elf_greg_t)); \
        dst[44] = pt->sar;   dst[45] = pt->iir; \
        dst[46] = pt->isr;   dst[47] = pt->ior; \
        dst[48] = mfctl(22); dst[49] = mfctl(0); \
        dst[50] = mfctl(24); dst[51] = mfctl(25); \
        dst[52] = mfctl(26); dst[53] = mfctl(27); \
        dst[54] = mfctl(28); dst[55] = mfctl(29); \
        dst[56] = mfctl(30); dst[57] = mfctl(31); \
        dst[58] = mfctl( 8); dst[59] = mfctl( 9); \
        dst[60] = mfctl(12); dst[61] = mfctl(13); \
        dst[62] = mfctl(10); dst[63] = mfctl(15);


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From - Thu Nov 08 21:38:51 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: RFC: parisc regset support
Date: Sun, 1 May 2016 11:28:08 +0200
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On 01.05.2016 11:25, Helge Deller wrote:
> Hi all,
> 
> Earlier this month I posted a patch which adds regset support
> to parisc and which I'm planning to push for kernel v4.7:
> https://patchwork.kernel.org/patch/8787691/
> 
> In this patch is the "new" user-visible regset 
> which I've laid out like this:
> 
>> +struct user_regs_struct {
>> +	unsigned long gr[32];	/* PSW is in gr[0] */
>> +	unsigned long sr[8];
>> +	unsigned long iaoq[2];
>> +	unsigned long iasq[2];
>> +	unsigned long sar;	/* CR11 */
>> +	unsigned long iir;	/* CR19 */
>> +	unsigned long isr;	/* CR20 */
>> +	unsigned long ior;	/* CR21 */
>> +	unsigned long ipsw;	/* CR22 */
>> +	unsigned long cr0;
>> +	unsigned long cr24, cr25, cr26, cr27, cr28, cr29, cr30, cr31;
>> +	unsigned long cr8, cr9, cr12, cr13, cr10, cr15;
>> +	unsigned long _pad[80-64];	/* pad to ELF_NGREG (80) */
>> +};
> 
> Current glibc versions use this definition in
> /usr/include/hppa-linux-gnu/sys/ucontext.h
> 
> /* Container for all general registers.  */
> typedef struct gregset
>   {
>     greg_t g_regs[32];
>     greg_t sr_regs[8];
>     greg_t cr_regs[24]; 
>     greg_t g_pad[16];
>   } gregset_t;
> 
> What is you opinion on this change, e.g. using explicit names of the
> control registers and their order?

I missed to mention, that the glibc header file (/usr/include/hppa-linux-gnu/sys/ucontext.h)
includes a comment at the top which says:

/* Don't rely on this, the interface is currently messed up and may need to
   be broken to be fixed.  */

I don't know who added this comment, and what exactly was meant with it.
Any ideas?

 
> By the way, the order I choosed is modelled after the in-kernel
> ELF/core-dump code which can be seen in  arch/parisc/include/asm/elf.h:
> 
> /*
>  * Fill in general registers in a core dump.  This saves pretty
>  * much the same registers as hp-ux, although in a different order.
>  * Registers marked # below are not currently saved in pt_regs, so
>  * we use their current values here.
>  *
>  *      gr0..gr31
>  *      sr0..sr7
>  *      iaoq0..iaoq1
>  *      iasq0..iasq1
>  *      cr11 (sar)
>  *      cr19 (iir)
>  *      cr20 (isr)
>  *      cr21 (ior)
>  *  #   cr22 (ipsw)
>  *  #   cr0 (recovery counter)
>  *  #   cr24..cr31 (temporary registers)
>  *  #   cr8,9,12,13 (protection IDs)
>  *  #   cr10 (scr/ccr)
>  *  #   cr15 (ext int enable mask)
>  *
>  */
> 
> #define ELF_CORE_COPY_REGS(dst, pt)     \
>         memset(dst, 0, sizeof(dst));    /* don't leak any "random" bits */ \
>         memcpy(dst + 0, pt->gr, 32 * sizeof(elf_greg_t)); \
>         memcpy(dst + 32, pt->sr, 8 * sizeof(elf_greg_t)); \
>         memcpy(dst + 40, pt->iaoq, 2 * sizeof(elf_greg_t)); \
>         memcpy(dst + 42, pt->iasq, 2 * sizeof(elf_greg_t)); \
>         dst[44] = pt->sar;   dst[45] = pt->iir; \
>         dst[46] = pt->isr;   dst[47] = pt->ior; \
>         dst[48] = mfctl(22); dst[49] = mfctl(0); \
>         dst[50] = mfctl(24); dst[51] = mfctl(25); \
>         dst[52] = mfctl(26); dst[53] = mfctl(27); \
>         dst[54] = mfctl(28); dst[55] = mfctl(29); \
>         dst[56] = mfctl(30); dst[57] = mfctl(31); \
>         dst[58] = mfctl( 8); dst[59] = mfctl( 9); \
>         dst[60] = mfctl(12); dst[61] = mfctl(13); \
>         dst[62] = mfctl(10); dst[63] = mfctl(15);
> 
> 

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From - Thu Nov 08 21:38:51 2018
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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 00/16] genrtc removal
Date: Mon, 2 May 2016 10:45:52 +0200
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Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>,
	Helge Deller <deller@gmx.de>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Rich Felker <dalias@libc.org>,
	David Howells <dhowells@redhat.com>,
	alpha <linux-alpha@vger.kernel.org>,
	Alessandro Zummo <a.zummo@towertech.it>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Parisc List <linux-parisc@vger.kernel.org>,
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To: Arnd Bergmann <arnd@arndb.de>
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Hi Arnd,

On Thu, Apr 28, 2016 at 9:48 AM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:
> On Thu, Apr 28, 2016 at 12:34 AM, Arnd Bergmann <arnd@arndb.de> wrote=
:
>> I ended up stuffing the two patch series into one, as they are now
>> more dependent on one another. This now thoroughly removes the
>> genrtc driver including the asm/rtc.h headers it uses. For all
>> architectures that still have a meaningful asm/rtc.h, this goes
>> through two stages:
>>
>> 1) make the rtc-generic implementation independent of asm/rtc.h
>> 2) remove the asm/rtc.h header and disallow the gen_rtc driver
>>
>> As the last step, the driver itself gets removed.
>
> In general, after fixing the minor nit:
> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
>
> For the m68k bits:
> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>

More build coverage uncovered two build failures on m68k due to "[PATCH=
 v3
02/16] rtc: cmos: move mc146818rtc code out of asm-generic/rtc.h":

bvme6000_defconfig:

    In file included from arch/m68k/bvme6000/rtc.c:19:
    include/linux/mc146818rtc.h: In function =E2=80=98mc146818_is_updat=
ing=E2=80=99:
    include/linux/mc146818rtc.h:138: error: implicit declaration of
function =E2=80=98CMOS_READ=E2=80=99
    include/linux/mc146818rtc.h: In function =E2=80=98mc146818_get_time=
=E2=80=99:
    include/linux/mc146818rtc.h:189: error: =E2=80=98RTC_ALWAYS_BCD=E2=80=
=99
undeclared (first use in this function)
    include/linux/mc146818rtc.h:189: error: (Each undeclared
identifier is reported only once
    include/linux/mc146818rtc.h:189: error: for each function it appear=
s in.)
    include/linux/mc146818rtc.h: In function =E2=80=98mc146818_set_time=
=E2=80=99:
    include/linux/mc146818rtc.h:279: error: =E2=80=98RTC_ALWAYS_BCD=E2=80=
=99
undeclared (first use in this function)
    include/linux/mc146818rtc.h:290: error: implicit declaration of
function =E2=80=98CMOS_WRITE=E2=80=99

mvme16x_defconfig:

    In file included from arch/m68k/mvme16x/rtc.c:18:
    include/linux/mc146818rtc.h: In function =E2=80=98mc146818_is_updat=
ing=E2=80=99:
    include/linux/mc146818rtc.h:138: error: implicit declaration of
function =E2=80=98CMOS_READ=E2=80=99
    include/linux/mc146818rtc.h: In function =E2=80=98mc146818_get_time=
=E2=80=99:
    include/linux/mc146818rtc.h:189: error: =E2=80=98RTC_ALWAYS_BCD=E2=80=
=99
undeclared (first use in this function)
    include/linux/mc146818rtc.h:189: error: (Each undeclared
identifier is reported only once
    include/linux/mc146818rtc.h:189: error: for each function it appear=
s in.)
    include/linux/mc146818rtc.h: In function =E2=80=98mc146818_set_time=
=E2=80=99:
    include/linux/mc146818rtc.h:279: error: =E2=80=98RTC_ALWAYS_BCD=E2=80=
=99
undeclared (first use in this function)
    include/linux/mc146818rtc.h:290: error: implicit declaration of
function =E2=80=98CMOS_WRITE=E2=80=99

These do not show up with a multi-platform config including Atari
support, as arch/m68k/include/asm/mc146818rtc.h provides a definition o=
f
CMOS_READ() if CONFIG_ATARI=3Dy.

=46ortunately the fixes are simple: replace <linux/mc146818rtc.h> by
<linux/rtc.h>. Will send patches to fix...

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-=
m68k.org

In personal conversations with technical people, I call myself a hacker=
=2E But
when I'm talking to journalists I just say "programmer" or something li=
ke that.
                                -- Linus Torvalds

From - Thu Nov 08 21:38:51 2018
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From: Michael Ellerman <mpe@ellerman.id.au>
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Subject: Re: [PATCH v3 12/16] rtc: powerpc: provide rtc_class_ops directly
Date: Tue, 03 May 2016 14:05:09 +1000
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On Thu, 2016-04-28 at 00:34 +0200, Arnd Bergmann wrote:

> The rtc-generic driver provides an architecture specific
> wrapper on top of the generic rtc_class_ops abstraction,
> and powerpc has another abstraction on top, which is a bit
> silly.
> 
> This changes the powerpc rtc-generic device to provide its
> rtc_class_ops directly, to reduce the number of layers
> by one.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  arch/powerpc/kernel/time.c | 29 ++++++++++++++++++++++++++++-
>  drivers/rtc/rtc-generic.c  |  2 +-
>  2 files changed, 29 insertions(+), 2 deletions(-)

If this hits linux-next it will go through my automated boot testing, which
hopefully would be sufficient to catch any bugs in this patch, cross fingers.

I don't know jack about all the layers of RTC mess, so my ack is basically
worthless here. But if you like you can have one anyway :)

Acked-by: Michael Ellerman <mpe@ellerman.id.au>

cheers


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Subject: Re: [PATCH v3 00/16] genrtc removal
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To: Arnd Bergmann <arnd@arndb.de>
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Hi Arnd,

I see you didn't copy Greg on that series (that may explain his
confusion on the previous patch), do you expect me to take it
through the RTC tree? That is fine but I'd like some acks from him.

On 28/04/2016 at 00:34:14 +0200, Arnd Bergmann wrote :
> I ended up stuffing the two patch series into one, as they are now
> more dependent on one another. This now thoroughly removes the
> genrtc driver including the asm/rtc.h headers it uses. For all
> architectures that still have a meaningful asm/rtc.h, this goes
> through two stages:
> 
> 1) make the rtc-generic implementation independent of asm/rtc.h
> 2) remove the asm/rtc.h header and disallow the gen_rtc driver
> 
> As the last step, the driver itself gets removed.
> 
> 	Arnd
> 
>  arch/alpha/include/asm/rtc.h          |   1 -
>  arch/alpha/kernel/core_marvel.c       |   1 -
>  arch/alpha/kernel/rtc.c               |   6 +-
>  arch/frv/include/asm/mc146818rtc.h    |  16 -
>  arch/h8300/include/asm/mc146818rtc.h  |   9 -
>  arch/ia64/include/asm/mc146818rtc.h   |  10 -
>  arch/m68k/amiga/config.c              |   1 -
>  arch/m68k/apollo/config.c             |   1 -
>  arch/m68k/bvme6000/config.c           |   1 -
>  arch/m68k/hp300/config.c              |   2 +-
>  arch/m68k/include/asm/rtc.h           |  79 -----
>  arch/m68k/kernel/time.c               |  49 +++-
>  arch/m68k/mac/config.c                |   3 +-
>  arch/m68k/mac/misc.c                  |   1 -
>  arch/m68k/mvme147/config.c            |   1 -
>  arch/m68k/mvme16x/config.c            |   1 -
>  arch/m68k/q40/config.c                |   2 +-
>  arch/m68k/sun3/config.c               |   1 -
>  arch/m68k/sun3/intersil.c             |   2 +-
>  arch/m68k/sun3x/time.c                |   2 +-
>  arch/mips/sni/time.c                  |   1 -
>  arch/mn10300/include/asm/rtc.h        |   2 -
>  arch/mn10300/kernel/rtc.c             |   2 +-
>  arch/parisc/include/asm/mc146818rtc.h |   9 -
>  arch/parisc/include/asm/rtc.h         | 131 ---------
>  arch/parisc/kernel/time.c             |  36 ++-
>  arch/powerpc/include/asm/rtc.h        |  78 -----
>  arch/powerpc/kernel/time.c            |  29 +-
>  arch/powerpc/platforms/Kconfig        |  11 +
>  arch/powerpc/platforms/ps3/time.c     |   2 +-
>  arch/sh/include/asm/mc146818rtc.h     |   7 -
>  arch/sh/include/asm/rtc.h             |  11 -
>  arch/sh/kernel/time.c                 |  32 +-
>  arch/x86/include/asm/mc146818rtc.h    |   1 -
>  arch/x86/include/asm/rtc.h            |   1 -
>  arch/x86/kernel/hpet.c                |   3 +-
>  arch/x86/kernel/rtc.c                 |   3 +-
>  arch/x86/platform/efi/efi.c           |   1 -
>  drivers/acpi/acpi_cmos_rtc.c          |   2 +-
>  drivers/base/power/trace.c            |   6 +-
>  drivers/char/Kconfig                  |  26 --
>  drivers/char/Makefile                 |   1 -
>  drivers/char/genrtc.c                 | 539 ----------------------------------
>  drivers/rtc/rtc-cmos.c                |  12 +-
>  drivers/rtc/rtc-generic.c             |  36 +--
>  drivers/rtc/rtc-mrst.c                |   2 +-
>  include/asm-generic/rtc.h             | 247 ----------------
>  include/linux/mc146818rtc.h           | 194 ++++++++++++
>  48 files changed, 358 insertions(+), 1256 deletions(-)
> 
>  [PATCH v3 01/16] rtc: cmos: remove empty asm/mc146818rtc.h files
>  [PATCH v3 02/16] rtc: cmos: move mc146818rtc code out of
>  [PATCH v3 03/16] char/genrtc: x86: remove remnants of asm/rtc.h
>  [PATCH v3 04/16] rtc: sh: provide rtc_class_ops directly
>  [PATCH v3 05/16] char/genrtc: remove alpha support
>  [PATCH v3 06/16] char/genrtc: remove mn10300 support
>  [PATCH v3 07/16] rtc: parisc: provide rtc_class_ops directly
>  [PATCH v3 08/16] char/genrtc: remove parisc support
>  [PATCH v3 09/16] rtc: m68k: provide rtc_class_ops directly
>  [PATCH v3 10/16] rtc: m68k: provide ioctl for q40
>  [PATCH v3 11/16] char/genrtc: remove m68k support
>  [PATCH v3 12/16] rtc: powerpc: provide rtc_class_ops directly
>  [PATCH v3 13/16] char/genrtc: remove powerpc support
>  [PATCH v3 14/16] rtc: generic: remove get_rtc_time/set_rtc_time
>  [PATCH v3 15/16] char/genrtc: remove asm-generic/rtc.h from mips
>  [PATCH v3 16/16] char/genrtc: remove the rest of the driver

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

From - Thu Nov 08 21:38:52 2018
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On Tuesday 03 May 2016 09:24:18 Alexandre Belloni wrote:
> Hi Arnd,
> 
> I see you didn't copy Greg on that series (that may explain his
> confusion on the previous patch), do you expect me to take it
> through the RTC tree? That is fine but I'd like some acks from him.

Yes, that was a mistake. I dropped Greg from one Cc list in v2 when
I split up the RTC changes into the part that was for drivers/rtc
and the other one for Greg's char-misc tree. Then I reused the first
Cc list when I sent a combined series for v3 again. I'll fix that
when I post v4. There are only very small changes in there that
I still need to pick up, so hopefully that will be the last version.

It would be nice if you could take it through your tree then.

	Arnd

> On 28/04/2016 at 00:34:14 +0200, Arnd Bergmann wrote :
> > I ended up stuffing the two patch series into one, as they are now
> > more dependent on one another. This now thoroughly removes the
> > genrtc driver including the asm/rtc.h headers it uses. For all
> > architectures that still have a meaningful asm/rtc.h, this goes
> > through two stages:
> > 
> > 1) make the rtc-generic implementation independent of asm/rtc.h
> > 2) remove the asm/rtc.h header and disallow the gen_rtc driver
> > 
> > As the last step, the driver itself gets removed.
> > 
> > 	Arnd
> > 
> >  arch/alpha/include/asm/rtc.h          |   1 -
> >  arch/alpha/kernel/core_marvel.c       |   1 -
> >  arch/alpha/kernel/rtc.c               |   6 +-
> >  arch/frv/include/asm/mc146818rtc.h    |  16 -
> >  arch/h8300/include/asm/mc146818rtc.h  |   9 -
> >  arch/ia64/include/asm/mc146818rtc.h   |  10 -
> >  arch/m68k/amiga/config.c              |   1 -
> >  arch/m68k/apollo/config.c             |   1 -
> >  arch/m68k/bvme6000/config.c           |   1 -
> >  arch/m68k/hp300/config.c              |   2 +-
> >  arch/m68k/include/asm/rtc.h           |  79 -----
> >  arch/m68k/kernel/time.c               |  49 +++-
> >  arch/m68k/mac/config.c                |   3 +-
> >  arch/m68k/mac/misc.c                  |   1 -
> >  arch/m68k/mvme147/config.c            |   1 -
> >  arch/m68k/mvme16x/config.c            |   1 -
> >  arch/m68k/q40/config.c                |   2 +-
> >  arch/m68k/sun3/config.c               |   1 -
> >  arch/m68k/sun3/intersil.c             |   2 +-
> >  arch/m68k/sun3x/time.c                |   2 +-
> >  arch/mips/sni/time.c                  |   1 -
> >  arch/mn10300/include/asm/rtc.h        |   2 -
> >  arch/mn10300/kernel/rtc.c             |   2 +-
> >  arch/parisc/include/asm/mc146818rtc.h |   9 -
> >  arch/parisc/include/asm/rtc.h         | 131 ---------
> >  arch/parisc/kernel/time.c             |  36 ++-
> >  arch/powerpc/include/asm/rtc.h        |  78 -----
> >  arch/powerpc/kernel/time.c            |  29 +-
> >  arch/powerpc/platforms/Kconfig        |  11 +
> >  arch/powerpc/platforms/ps3/time.c     |   2 +-
> >  arch/sh/include/asm/mc146818rtc.h     |   7 -
> >  arch/sh/include/asm/rtc.h             |  11 -
> >  arch/sh/kernel/time.c                 |  32 +-
> >  arch/x86/include/asm/mc146818rtc.h    |   1 -
> >  arch/x86/include/asm/rtc.h            |   1 -
> >  arch/x86/kernel/hpet.c                |   3 +-
> >  arch/x86/kernel/rtc.c                 |   3 +-
> >  arch/x86/platform/efi/efi.c           |   1 -
> >  drivers/acpi/acpi_cmos_rtc.c          |   2 +-
> >  drivers/base/power/trace.c            |   6 +-
> >  drivers/char/Kconfig                  |  26 --
> >  drivers/char/Makefile                 |   1 -
> >  drivers/char/genrtc.c                 | 539 ----------------------------------
> >  drivers/rtc/rtc-cmos.c                |  12 +-
> >  drivers/rtc/rtc-generic.c             |  36 +--
> >  drivers/rtc/rtc-mrst.c                |   2 +-
> >  include/asm-generic/rtc.h             | 247 ----------------
> >  include/linux/mc146818rtc.h           | 194 ++++++++++++
> >  48 files changed, 358 insertions(+), 1256 deletions(-)
> > 
> >  [PATCH v3 01/16] rtc: cmos: remove empty asm/mc146818rtc.h files
> >  [PATCH v3 02/16] rtc: cmos: move mc146818rtc code out of
> >  [PATCH v3 03/16] char/genrtc: x86: remove remnants of asm/rtc.h
> >  [PATCH v3 04/16] rtc: sh: provide rtc_class_ops directly
> >  [PATCH v3 05/16] char/genrtc: remove alpha support
> >  [PATCH v3 06/16] char/genrtc: remove mn10300 support
> >  [PATCH v3 07/16] rtc: parisc: provide rtc_class_ops directly
> >  [PATCH v3 08/16] char/genrtc: remove parisc support
> >  [PATCH v3 09/16] rtc: m68k: provide rtc_class_ops directly
> >  [PATCH v3 10/16] rtc: m68k: provide ioctl for q40
> >  [PATCH v3 11/16] char/genrtc: remove m68k support
> >  [PATCH v3 12/16] rtc: powerpc: provide rtc_class_ops directly
> >  [PATCH v3 13/16] char/genrtc: remove powerpc support
> >  [PATCH v3 14/16] rtc: generic: remove get_rtc_time/set_rtc_time
> >  [PATCH v3 15/16] char/genrtc: remove asm-generic/rtc.h from mips
> >  [PATCH v3 16/16] char/genrtc: remove the rest of the driver
> 
> 

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From - Thu Nov 08 21:38:52 2018
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From: Arnd Bergmann <arnd@arndb.de>
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Subject: Re: [PATCH v3 12/16] rtc: powerpc: provide rtc_class_ops directly
Date: Tue, 03 May 2016 12:29:21 +0200
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Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>,
	geert@linux-m68k.org, deller@gmx.de, benh@kernel.crashing.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/53986>

On Tuesday 03 May 2016 14:05:09 Michael Ellerman wrote:
> On Thu, 2016-04-28 at 00:34 +0200, Arnd Bergmann wrote:
> 
> > The rtc-generic driver provides an architecture specific
> > wrapper on top of the generic rtc_class_ops abstraction,
> > and powerpc has another abstraction on top, which is a bit
> > silly.
> > 
> > This changes the powerpc rtc-generic device to provide its
> > rtc_class_ops directly, to reduce the number of layers
> > by one.
> > 
> > Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> > ---
> >  arch/powerpc/kernel/time.c | 29 ++++++++++++++++++++++++++++-
> >  drivers/rtc/rtc-generic.c  |  2 +-
> >  2 files changed, 29 insertions(+), 2 deletions(-)
> 
> If this hits linux-next it will go through my automated boot testing, which
> hopefully would be sufficient to catch any bugs in this patch, cross fingers.
> 
> I don't know jack about all the layers of RTC mess, so my ack is basically
> worthless here. But if you like you can have one anyway 
> 
> Acked-by: Michael Ellerman <mpe@ellerman.id.au>

Thanks!

The main thing that could use testing here is for patch 12/16 to see if
/sbin/hwclock can still read and write the time on a machine that
uses one of the genrtc backends on powerpc, this includes
rtas_get_rtc_time, mpc8xx_get_rtc_time, maple_get_rtc_time,
ps3_get_rtc_time and pmac_get_rtc_time. Testing on a pSeries with rtas
should be sufficient, and if I made a mistake, it probably fails
spectacularly.

Just for reference, if anyone ever wants to clean this up further on
powerpc to remove all of the rtc handling from architecture code,
it has gotten easier after my series:

- The update_persistent_clock() and read_persistent_clock() callbacks
  are now unnecessary: as long as the RTC driver is built into the
  kernel, drivers/rtc/hctosys.c takes care of setting the initial
  time (otherwise user space has to do it), and the other users
  (ntp and suspend/resume) will work fine whenever an rtc driver
  is loaded. Obviously you will want to test the kernel better after
  removing the two functions.

- Once they are gone, the only users of the ppc_md.{get,set}_rtc_time
  callbacks are in the "const struct rtc_class_ops rtc_generic_ops".
  You can move them into the five files implementing those callbacks
  and call the functions directly to get rid of the function pointers.

- Lastly, after that is done, you basically have five independent
  rtc device drivers that can get moved to drivers/rtc and converted
  into regular platform drivers. Instead of registering the fake
  "rtc-generic" device, you then register the one that is actually
  there like arch/powerpc/sysdev/rtc_cmos_setup.c already does, or
  use the one that gets created from DT.

	Arnd
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From - Thu Nov 08 21:38:52 2018
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From: Florian Westphal <fw@strlen.de>
Newsgroups: gmane.linux.kernel,gmane.linux.network,gmane.linux.ports.parisc
Subject: [PATCH net-next 1/5] dmfe: kill DEVICE define
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use net_device directly. Compile tested, objdiff shows no changes.

Cc: linux-parisc@vger.kernel.org
Signed-off-by: Florian Westphal <fw@strlen.de>
---
 drivers/net/ethernet/dec/tulip/dmfe.c | 39 ++++++++++++++++-------------------
 1 file changed, 18 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/dmfe.c b/drivers/net/ethernet/dec/tulip/dmfe.c
index afd8e78..dd1c815 100644
--- a/drivers/net/ethernet/dec/tulip/dmfe.c
+++ b/drivers/net/ethernet/dec/tulip/dmfe.c
@@ -192,9 +192,6 @@
 	(__CHK_IO_SIZE(((pci_dev)->device << 16) | (pci_dev)->vendor, \
 	(pci_dev)->revision))
 
-/* Sten Check */
-#define DEVICE net_device
-
 /* Structure/enum declaration ------------------------------- */
 struct tx_desc {
         __le32 tdes0, tdes1, tdes2, tdes3; /* Data for the card */
@@ -313,10 +310,10 @@ static u8 SF_mode;		/* Special Function: 1:VLAN, 2:RX Flow Control
 
 
 /* function declaration ------------------------------------- */
-static int dmfe_open(struct DEVICE *);
-static netdev_tx_t dmfe_start_xmit(struct sk_buff *, struct DEVICE *);
-static int dmfe_stop(struct DEVICE *);
-static void dmfe_set_filter_mode(struct DEVICE *);
+static int dmfe_open(struct net_device *);
+static netdev_tx_t dmfe_start_xmit(struct sk_buff *, struct net_device *);
+static int dmfe_stop(struct net_device *);
+static void dmfe_set_filter_mode(struct net_device *);
 static const struct ethtool_ops netdev_ethtool_ops;
 static u16 read_srom_word(void __iomem *, int);
 static irqreturn_t dmfe_interrupt(int , void *);
@@ -326,8 +323,8 @@ static void poll_dmfe (struct net_device *dev);
 static void dmfe_descriptor_init(struct net_device *);
 static void allocate_rx_buffer(struct net_device *);
 static void update_cr6(u32, void __iomem *);
-static void send_filter_frame(struct DEVICE *);
-static void dm9132_id_table(struct DEVICE *);
+static void send_filter_frame(struct net_device *);
+static void dm9132_id_table(struct net_device *);
 static u16 dmfe_phy_read(void __iomem *, u8, u8, u32);
 static void dmfe_phy_write(void __iomem *, u8, u8, u16, u32);
 static void dmfe_phy_write_1bit(void __iomem *, u32);
@@ -336,12 +333,12 @@ static u8 dmfe_sense_speed(struct dmfe_board_info *);
 static void dmfe_process_mode(struct dmfe_board_info *);
 static void dmfe_timer(unsigned long);
 static inline u32 cal_CRC(unsigned char *, unsigned int, u8);
-static void dmfe_rx_packet(struct DEVICE *, struct dmfe_board_info *);
-static void dmfe_free_tx_pkt(struct DEVICE *, struct dmfe_board_info *);
+static void dmfe_rx_packet(struct net_device *, struct dmfe_board_info *);
+static void dmfe_free_tx_pkt(struct net_device *, struct dmfe_board_info *);
 static void dmfe_reuse_skb(struct dmfe_board_info *, struct sk_buff *);
-static void dmfe_dynamic_reset(struct DEVICE *);
+static void dmfe_dynamic_reset(struct net_device *);
 static void dmfe_free_rxbuffer(struct dmfe_board_info *);
-static void dmfe_init_dm910x(struct DEVICE *);
+static void dmfe_init_dm910x(struct net_device *);
 static void dmfe_parse_srom(struct dmfe_board_info *);
 static void dmfe_program_DM9801(struct dmfe_board_info *, int);
 static void dmfe_program_DM9802(struct dmfe_board_info *);
@@ -558,7 +555,7 @@ static void dmfe_remove_one(struct pci_dev *pdev)
  *	The interface is opened whenever "ifconfig" actives it.
  */
 
-static int dmfe_open(struct DEVICE *dev)
+static int dmfe_open(struct net_device *dev)
 {
 	struct dmfe_board_info *db = netdev_priv(dev);
 	const int irq = db->pdev->irq;
@@ -617,7 +614,7 @@ static int dmfe_open(struct DEVICE *dev)
  *	Enable Tx/Rx machine
  */
 
-static void dmfe_init_dm910x(struct DEVICE *dev)
+static void dmfe_init_dm910x(struct net_device *dev)
 {
 	struct dmfe_board_info *db = netdev_priv(dev);
 	void __iomem *ioaddr = db->ioaddr;
@@ -684,7 +681,7 @@ static void dmfe_init_dm910x(struct DEVICE *dev)
  */
 
 static netdev_tx_t dmfe_start_xmit(struct sk_buff *skb,
-					 struct DEVICE *dev)
+					 struct net_device *dev)
 {
 	struct dmfe_board_info *db = netdev_priv(dev);
 	void __iomem *ioaddr = db->ioaddr;
@@ -754,7 +751,7 @@ static netdev_tx_t dmfe_start_xmit(struct sk_buff *skb,
  *	The interface is stopped when it is brought.
  */
 
-static int dmfe_stop(struct DEVICE *dev)
+static int dmfe_stop(struct net_device *dev)
 {
 	struct dmfe_board_info *db = netdev_priv(dev);
 	void __iomem *ioaddr = db->ioaddr;
@@ -798,7 +795,7 @@ static int dmfe_stop(struct DEVICE *dev)
 
 static irqreturn_t dmfe_interrupt(int irq, void *dev_id)
 {
-	struct DEVICE *dev = dev_id;
+	struct net_device *dev = dev_id;
 	struct dmfe_board_info *db = netdev_priv(dev);
 	void __iomem *ioaddr = db->ioaddr;
 	unsigned long flags;
@@ -879,7 +876,7 @@ static void poll_dmfe (struct net_device *dev)
  *	Free TX resource after TX complete
  */
 
-static void dmfe_free_tx_pkt(struct DEVICE *dev, struct dmfe_board_info * db)
+static void dmfe_free_tx_pkt(struct net_device *dev, struct dmfe_board_info *db)
 {
 	struct tx_desc *txptr;
 	void __iomem *ioaddr = db->ioaddr;
@@ -961,7 +958,7 @@ static inline u32 cal_CRC(unsigned char * Data, unsigned int Len, u8 flag)
  *	Receive the come packet and pass to upper layer
  */
 
-static void dmfe_rx_packet(struct DEVICE *dev, struct dmfe_board_info * db)
+static void dmfe_rx_packet(struct net_device *dev, struct dmfe_board_info *db)
 {
 	struct rx_desc *rxptr;
 	struct sk_buff *skb, *newskb;
@@ -1052,7 +1049,7 @@ static void dmfe_rx_packet(struct DEVICE *dev, struct dmfe_board_info * db)
  * Set DM910X multicast address
  */
 
-static void dmfe_set_filter_mode(struct DEVICE * dev)
+static void dmfe_set_filter_mode(struct net_device *dev)
 {
 	struct dmfe_board_info *db = netdev_priv(dev);
 	unsigned long flags;
-- 
2.7.3



From - Thu Nov 08 21:38:52 2018
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Path: news.gmane.org!not-for-mail
From: Florian Westphal <fw-HFFVJYpyMKqzQB+pC5nmwQ@public.gmane.org>
Newsgroups: gmane.linux.kernel.wireless.general,gmane.linux.network,gmane.linux.uml.devel,gmane.linux.kernel.firewire.devel,gmane.linux.drivers.rdma,gmane.linux.scsi,gmane.linux.can,gmane.linux.ports.parisc,gmane.linux.ports.arm.omap,gmane.linux.hams,gmane.linux.usb.general,gmane.org.freifunk.batman,gmane.linux.bluez.kernel
Subject: [PATCH net-next 4/5] treewide: replace dev->trans_start update with helper
Date: Tue,  3 May 2016 16:33:13 +0200
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Approved: news@gmane.org
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	user-mode-linux-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.wireless.general/151748>

Replace all trans_start updates with netif_trans_update helper.
change was done via spatch:

struct net_device *d;
@@
- d->trans_start = jiffies
+ netif_trans_update(d)

Compile tested only.

Cc: user-mode-linux-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Cc: linux-xtensa-PjhNF2WwrV/0Sa2dR60CXw@public.gmane.org
Cc: linux1394-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: MPT-FusionLinux.pdl-dY08KVG/lbpWk0Htik3J/w@public.gmane.org
Cc: linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-can-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-hams-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org
Cc: b.a.t.m.a.n-ZwoEplunGu2X36UT3dwllkB+6BGkLq7r@public.gmane.org
Cc: linux-bluetooth-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Signed-off-by: Florian Westphal <fw-HFFVJYpyMKqzQB+pC5nmwQ@public.gmane.org>
---
 Checkpatch complains about whitespace damage, but
 this extra whitespace already exists before this patch.

 arch/um/drivers/net_kern.c                             | 4 ++--
 arch/xtensa/platforms/iss/network.c                    | 2 +-
 drivers/char/pcmcia/synclink_cs.c                      | 4 ++--
 drivers/firewire/net.c                                 | 2 +-
 drivers/infiniband/hw/nes/nes_nic.c                    | 2 +-
 drivers/infiniband/ulp/ipoib/ipoib_cm.c                | 2 +-
 drivers/infiniband/ulp/ipoib/ipoib_ib.c                | 2 +-
 drivers/isdn/hysdn/hysdn_net.c                         | 2 +-
 drivers/isdn/i4l/isdn_net.c                            | 4 ++--
 drivers/isdn/i4l/isdn_x25iface.c                       | 2 +-
 drivers/message/fusion/mptlan.c                        | 2 +-
 drivers/net/appletalk/cops.c                           | 2 +-
 drivers/net/can/mscan/mscan.c                          | 4 ++--
 drivers/net/can/usb/ems_usb.c                          | 4 ++--
 drivers/net/can/usb/esd_usb2.c                         | 4 ++--
 drivers/net/can/usb/peak_usb/pcan_usb_core.c           | 4 ++--
 drivers/net/cris/eth_v10.c                             | 2 +-
 drivers/net/ethernet/3com/3c509.c                      | 2 +-
 drivers/net/ethernet/3com/3c515.c                      | 2 +-
 drivers/net/ethernet/3com/3c574_cs.c                   | 2 +-
 drivers/net/ethernet/3com/3c589_cs.c                   | 2 +-
 drivers/net/ethernet/3com/3c59x.c                      | 2 +-
 drivers/net/ethernet/8390/axnet_cs.c                   | 6 +++---
 drivers/net/ethernet/8390/lib8390.c                    | 4 ++--
 drivers/net/ethernet/adaptec/starfire.c                | 2 +-
 drivers/net/ethernet/adi/bfin_mac.c                    | 2 +-
 drivers/net/ethernet/agere/et131x.c                    | 4 ++--
 drivers/net/ethernet/allwinner/sun4i-emac.c            | 6 +++---
 drivers/net/ethernet/amd/7990.c                        | 4 ++--
 drivers/net/ethernet/amd/a2065.c                       | 2 +-
 drivers/net/ethernet/amd/atarilance.c                  | 2 +-
 drivers/net/ethernet/amd/au1000_eth.c                  | 2 +-
 drivers/net/ethernet/amd/declance.c                    | 2 +-
 drivers/net/ethernet/amd/lance.c                       | 2 +-
 drivers/net/ethernet/amd/ni65.c                        | 4 ++--
 drivers/net/ethernet/amd/nmclan_cs.c                   | 2 +-
 drivers/net/ethernet/amd/pcnet32.c                     | 4 ++--
 drivers/net/ethernet/amd/sunlance.c                    | 2 +-
 drivers/net/ethernet/atheros/alx/main.c                | 2 +-
 drivers/net/ethernet/broadcom/bcmsysport.c             | 2 +-
 drivers/net/ethernet/broadcom/genet/bcmgenet.c         | 2 +-
 drivers/net/ethernet/broadcom/sb1250-mac.c             | 2 +-
 drivers/net/ethernet/broadcom/tg3.c                    | 2 +-
 drivers/net/ethernet/cavium/liquidio/lio_main.c        | 4 ++--
 drivers/net/ethernet/cavium/octeon/octeon_mgmt.c       | 2 +-
 drivers/net/ethernet/cavium/thunder/nicvf_main.c       | 2 +-
 drivers/net/ethernet/chelsio/cxgb4vf/sge.c             | 2 +-
 drivers/net/ethernet/davicom/dm9000.c                  | 4 ++--
 drivers/net/ethernet/dec/tulip/de4x5.c                 | 4 ++--
 drivers/net/ethernet/dec/tulip/dmfe.c                  | 6 +++---
 drivers/net/ethernet/dec/tulip/pnic.c                  | 6 +++---
 drivers/net/ethernet/dec/tulip/tulip_core.c            | 2 +-
 drivers/net/ethernet/dec/tulip/uli526x.c               | 4 ++--
 drivers/net/ethernet/dec/tulip/winbond-840.c           | 2 +-
 drivers/net/ethernet/dlink/dl2k.c                      | 2 +-
 drivers/net/ethernet/dlink/sundance.c                  | 2 +-
 drivers/net/ethernet/fealnx.c                          | 2 +-
 drivers/net/ethernet/freescale/gianfar.c               | 2 +-
 drivers/net/ethernet/fujitsu/fmvj18x_cs.c              | 2 +-
 drivers/net/ethernet/hisilicon/hix5hd2_gmac.c          | 2 +-
 drivers/net/ethernet/hisilicon/hns/hns_enet.c          | 6 +++---
 drivers/net/ethernet/hp/hp100.c                        | 2 +-
 drivers/net/ethernet/i825xx/82596.c                    | 2 +-
 drivers/net/ethernet/i825xx/lib82596.c                 | 2 +-
 drivers/net/ethernet/i825xx/sun3_82586.c               | 4 ++--
 drivers/net/ethernet/ibm/emac/core.c                   | 4 ++--
 drivers/net/ethernet/intel/fm10k/fm10k_pci.c           | 2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c          | 2 +-
 drivers/net/ethernet/korina.c                          | 8 ++++----
 drivers/net/ethernet/lantiq_etop.c                     | 4 ++--
 drivers/net/ethernet/marvell/pxa168_eth.c              | 2 +-
 drivers/net/ethernet/marvell/sky2.c                    | 2 +-
 drivers/net/ethernet/micrel/ksz884x.c                  | 4 ++--
 drivers/net/ethernet/microchip/encx24j600.c            | 2 +-
 drivers/net/ethernet/moxa/moxart_ether.c               | 2 +-
 drivers/net/ethernet/natsemi/natsemi.c                 | 2 +-
 drivers/net/ethernet/natsemi/sonic.c                   | 2 +-
 drivers/net/ethernet/nuvoton/w90p910_ether.c           | 4 ++--
 drivers/net/ethernet/packetengines/hamachi.c           | 2 +-
 drivers/net/ethernet/packetengines/yellowfin.c         | 2 +-
 drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c   | 2 +-
 drivers/net/ethernet/qualcomm/qca_spi.c                | 2 +-
 drivers/net/ethernet/realtek/atp.c                     | 2 +-
 drivers/net/ethernet/seeq/sgiseeq.c                    | 4 ++--
 drivers/net/ethernet/sgi/meth.c                        | 4 ++--
 drivers/net/ethernet/sis/sis900.c                      | 2 +-
 drivers/net/ethernet/smsc/epic100.c                    | 2 +-
 drivers/net/ethernet/smsc/smc911x.c                    | 6 +++---
 drivers/net/ethernet/smsc/smc9194.c                    | 4 ++--
 drivers/net/ethernet/smsc/smc91c92_cs.c                | 4 ++--
 drivers/net/ethernet/smsc/smc91x.c                     | 4 ++--
 drivers/net/ethernet/sun/niu.c                         | 2 +-
 drivers/net/ethernet/sun/sungem.c                      | 2 +-
 drivers/net/ethernet/synopsys/dwc_eth_qos.c            | 4 ++--
 drivers/net/ethernet/tehuti/tehuti.c                   | 2 +-
 drivers/net/ethernet/ti/cpsw.c                         | 2 +-
 drivers/net/ethernet/ti/netcp_core.c                   | 4 ++--
 drivers/net/ethernet/ti/tlan.c                         | 2 +-
 drivers/net/ethernet/tile/tilepro.c                    | 2 +-
 drivers/net/ethernet/toshiba/spider_net.c              | 2 +-
 drivers/net/ethernet/via/via-rhine.c                   | 2 +-
 drivers/net/ethernet/wiznet/w5100.c                    | 2 +-
 drivers/net/ethernet/wiznet/w5300.c                    | 2 +-
 drivers/net/ethernet/xilinx/ll_temac_main.c            | 2 +-
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c      | 2 +-
 drivers/net/ethernet/xilinx/xilinx_emaclite.c          | 4 ++--
 drivers/net/ethernet/xircom/xirc2ps_cs.c               | 2 +-
 drivers/net/fjes/fjes_main.c                           | 2 +-
 drivers/net/hamradio/mkiss.c                           | 2 +-
 drivers/net/hamradio/scc.c                             | 2 +-
 drivers/net/hamradio/yam.c                             | 2 +-
 drivers/net/irda/ali-ircc.c                            | 8 ++++----
 drivers/net/irda/bfin_sir.c                            | 2 +-
 drivers/net/irda/irda-usb.c                            | 4 ++--
 drivers/net/irda/nsc-ircc.c                            | 8 ++++----
 drivers/net/irda/smsc-ircc2.c                          | 2 +-
 drivers/net/irda/stir4200.c                            | 2 +-
 drivers/net/irda/via-ircc.c                            | 8 ++++----
 drivers/net/slip/slip.c                                | 2 +-
 drivers/net/usb/catc.c                                 | 4 ++--
 drivers/net/usb/kaweth.c                               | 2 +-
 drivers/net/usb/lan78xx.c                              | 4 ++--
 drivers/net/usb/pegasus.c                              | 2 +-
 drivers/net/usb/rtl8150.c                              | 4 ++--
 drivers/net/usb/usbnet.c                               | 4 ++--
 drivers/net/wan/cosa.c                                 | 2 +-
 drivers/net/wan/farsync.c                              | 6 +++---
 drivers/net/wan/lmc/lmc_main.c                         | 2 +-
 drivers/net/wan/sbni.c                                 | 8 ++++----
 drivers/net/wimax/i2400m/netdev.c                      | 2 +-
 drivers/net/wireless/cisco/airo.c                      | 6 +++---
 drivers/net/wireless/intel/ipw2x00/ipw2100.c           | 2 +-
 drivers/net/wireless/intel/ipw2x00/ipw2200.c           | 6 +++---
 drivers/net/wireless/intersil/hostap/hostap_hw.c       | 2 +-
 drivers/net/wireless/intersil/orinoco/main.c           | 2 +-
 drivers/net/wireless/intersil/orinoco/orinoco_usb.c    | 2 +-
 drivers/net/wireless/marvell/mwifiex/init.c            | 2 +-
 drivers/net/wireless/wl3501_cs.c                       | 2 +-
 drivers/net/wireless/zydas/zd1201.c                    | 2 +-
 drivers/s390/net/ctcm_main.c                           | 6 +++---
 drivers/s390/net/ctcm_mpc.c                            | 2 +-
 drivers/s390/net/netiucv.c                             | 2 +-
 drivers/staging/rtl8192e/rtl8192e/rtl_core.c           | 2 +-
 drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c | 6 +++---
 drivers/staging/rtl8192u/r8192U_core.c                 | 4 ++--
 drivers/staging/wlan-ng/p80211netdev.c                 | 2 +-
 drivers/tty/n_gsm.c                                    | 2 +-
 drivers/tty/synclink.c                                 | 4 ++--
 drivers/tty/synclink_gt.c                              | 4 ++--
 drivers/tty/synclinkmp.c                               | 4 ++--
 drivers/usb/gadget/function/u_ether.c                  | 2 +-
 net/atm/lec.c                                          | 4 ++--
 net/batman-adv/soft-interface.c                        | 2 +-
 net/bluetooth/bnep/netdev.c                            | 2 +-
 net/irda/irlan/irlan_eth.c                             | 2 +-
 net/sched/sch_generic.c                                | 2 +-
 156 files changed, 232 insertions(+), 232 deletions(-)

diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index 9ef669d..2cd5b68 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -223,7 +223,7 @@ static int uml_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (len == skb->len) {
 		dev->stats.tx_packets++;
 		dev->stats.tx_bytes += skb->len;
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 		netif_start_queue(dev);
 
 		/* this is normally done in the interrupt when tx finishes */
@@ -252,7 +252,7 @@ static void uml_net_set_multicast_list(struct net_device *dev)
 
 static void uml_net_tx_timeout(struct net_device *dev)
 {
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	netif_wake_queue(dev);
 }
 
diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c
index 976a385..66a5d15 100644
--- a/arch/xtensa/platforms/iss/network.c
+++ b/arch/xtensa/platforms/iss/network.c
@@ -428,7 +428,7 @@ static int iss_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (len == skb->len) {
 		lp->stats.tx_packets++;
 		lp->stats.tx_bytes += skb->len;
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 		netif_start_queue(dev);
 
 		/* this is normally done in the interrupt when tx finishes */
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 22c2765..e524e83 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -3969,7 +3969,7 @@ static netdev_tx_t hdlcdev_xmit(struct sk_buff *skb,
 	dev_kfree_skb(skb);
 
 	/* save start time for transmit timeout detection */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	/* start hardware transmitter if necessary */
 	spin_lock_irqsave(&info->lock, flags);
@@ -4032,7 +4032,7 @@ static int hdlcdev_open(struct net_device *dev)
 	tty_kref_put(tty);
 
 	/* enable network layer transmit */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	netif_start_queue(dev);
 
 	/* inform generic HDLC layer of current DCD status */
diff --git a/drivers/firewire/net.c b/drivers/firewire/net.c
index f4ea80d..309311b 100644
--- a/drivers/firewire/net.c
+++ b/drivers/firewire/net.c
@@ -1023,7 +1023,7 @@ static int fwnet_send_packet(struct fwnet_packet_task *ptask)
 
 	spin_unlock_irqrestore(&dev->lock, flags);
 
-	dev->netdev->trans_start = jiffies;
+	netif_trans_update(dev->netdev);
  out:
 	if (free)
 		fwnet_free_ptask(ptask);
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index 99cef26..ea2f0d7 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -685,7 +685,7 @@ tso_sq_no_longer_full:
 		nes_write32(nesdev->regs+NES_WQE_ALLOC,
 				(wqe_count << 24) | (1 << 23) | nesvnic->nic.qp_id);
 
-	netdev->trans_start = jiffies;
+	netif_trans_update(netdev);
 
 	return NETDEV_TX_OK;
 }
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index c8ed535..b2f4283 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -766,7 +766,7 @@ void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_
 		ipoib_dma_unmap_tx(priv, tx_req);
 		dev_kfree_skb_any(skb);
 	} else {
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 		++tx->tx_head;
 
 		if (++priv->tx_outstanding == ipoib_sendq_size) {
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index f0e55e4..3643d55 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -637,7 +637,7 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb,
 		if (netif_queue_stopped(dev))
 			netif_wake_queue(dev);
 	} else {
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 
 		address->last_send = priv->tx_head;
 		++priv->tx_head;
diff --git a/drivers/isdn/hysdn/hysdn_net.c b/drivers/isdn/hysdn/hysdn_net.c
index a0efb4c..5609dee 100644
--- a/drivers/isdn/hysdn/hysdn_net.c
+++ b/drivers/isdn/hysdn/hysdn_net.c
@@ -127,7 +127,7 @@ net_send_packet(struct sk_buff *skb, struct net_device *dev)
 	if (lp->in_idx >= MAX_SKB_BUFFERS)
 		lp->in_idx = 0;	/* wrap around */
 	lp->sk_count++;		/* adjust counter */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	/* If we just used up the very last entry in the
 	 * TX ring on this device, tell the queueing
diff --git a/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c
index aa5dd56..c151c6d 100644
--- a/drivers/isdn/i4l/isdn_net.c
+++ b/drivers/isdn/i4l/isdn_net.c
@@ -1153,7 +1153,7 @@ static void isdn_net_tx_timeout(struct net_device *ndev)
 		 * ever called   --KG
 		 */
 	}
-	ndev->trans_start = jiffies;
+	netif_trans_update(ndev);
 	netif_wake_queue(ndev);
 }
 
@@ -1291,7 +1291,7 @@ isdn_net_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 			}
 		} else {
 			/* Device is connected to an ISDN channel */
-			ndev->trans_start = jiffies;
+			netif_trans_update(ndev);
 			if (!lp->dialstate) {
 				/* ISDN connection is established, try sending */
 				int ret;
diff --git a/drivers/isdn/i4l/isdn_x25iface.c b/drivers/isdn/i4l/isdn_x25iface.c
index e2d4e58..0c5d8de 100644
--- a/drivers/isdn/i4l/isdn_x25iface.c
+++ b/drivers/isdn/i4l/isdn_x25iface.c
@@ -278,7 +278,7 @@ static int isdn_x25iface_xmit(struct concap_proto *cprot, struct sk_buff *skb)
 	case X25_IFACE_DATA:
 		if (*state == WAN_CONNECTED) {
 			skb_pull(skb, 1);
-			cprot->net_dev->trans_start = jiffies;
+			netif_trans_update(cprot->net_dev);
 			ret = (cprot->dops->data_req(cprot, skb));
 			/* prepare for future retransmissions */
 			if (ret) skb_push(skb, 1);
diff --git a/drivers/message/fusion/mptlan.c b/drivers/message/fusion/mptlan.c
index cbe9607..6955c9e 100644
--- a/drivers/message/fusion/mptlan.c
+++ b/drivers/message/fusion/mptlan.c
@@ -791,7 +791,7 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev)
 		pSimple->Address.High = 0;
 
 	mpt_put_msg_frame (LanCtx, mpt_dev, mf);
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	dioprintk((KERN_INFO MYNAM ": %s/%s: Sending packet. FlagsLength = %08x.\n",
 			IOC_AND_NETDEV_NAMES_s_s(dev),
diff --git a/drivers/net/appletalk/cops.c b/drivers/net/appletalk/cops.c
index 7f2a032..1b2e921 100644
--- a/drivers/net/appletalk/cops.c
+++ b/drivers/net/appletalk/cops.c
@@ -861,7 +861,7 @@ static void cops_timeout(struct net_device *dev)
 	}
 	printk(KERN_WARNING "%s: Transmit timed out.\n", dev->name);
 	cops_jumpstart(dev);	/* Restart the card. */
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 }
 
diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/mscan.c
index e36b740..acb708f 100644
--- a/drivers/net/can/mscan/mscan.c
+++ b/drivers/net/can/mscan/mscan.c
@@ -276,7 +276,7 @@ static netdev_tx_t mscan_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	out_8(&regs->cantflg, 1 << buf_id);
 
 	if (!test_bit(F_TX_PROGRESS, &priv->flags))
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 
 	list_add_tail(&priv->tx_queue[buf_id].list, &priv->tx_head);
 
@@ -469,7 +469,7 @@ static irqreturn_t mscan_isr(int irq, void *dev_id)
 			clear_bit(F_TX_PROGRESS, &priv->flags);
 			priv->cur_pri = 0;
 		} else {
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 		}
 
 		if (!test_bit(F_TX_WAIT_ALL, &priv->flags))
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index 3400fd1..71f0e79 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -521,7 +521,7 @@ static void ems_usb_write_bulk_callback(struct urb *urb)
 	if (urb->status)
 		netdev_info(netdev, "Tx URB aborted (%d)\n", urb->status);
 
-	netdev->trans_start = jiffies;
+	netif_trans_update(netdev);
 
 	/* transmission complete interrupt */
 	netdev->stats.tx_packets++;
@@ -835,7 +835,7 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne
 			stats->tx_dropped++;
 		}
 	} else {
-		netdev->trans_start = jiffies;
+		netif_trans_update(netdev);
 
 		/* Slow down tx path */
 		if (atomic_read(&dev->active_tx_urbs) >= MAX_TX_URBS ||
diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c
index 113e64f..784a900 100644
--- a/drivers/net/can/usb/esd_usb2.c
+++ b/drivers/net/can/usb/esd_usb2.c
@@ -480,7 +480,7 @@ static void esd_usb2_write_bulk_callback(struct urb *urb)
 	if (urb->status)
 		netdev_info(netdev, "Tx URB aborted (%d)\n", urb->status);
 
-	netdev->trans_start = jiffies;
+	netif_trans_update(netdev);
 }
 
 static ssize_t show_firmware(struct device *d,
@@ -820,7 +820,7 @@ static netdev_tx_t esd_usb2_start_xmit(struct sk_buff *skb,
 		goto releasebuf;
 	}
 
-	netdev->trans_start = jiffies;
+	netif_trans_update(netdev);
 
 	/*
 	 * Release our reference to this URB, the USB core will eventually free
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
index 5a2e341..bfb91d8 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
@@ -274,7 +274,7 @@ static void peak_usb_write_bulk_callback(struct urb *urb)
 		netdev->stats.tx_bytes += context->data_len;
 
 		/* prevent tx timeout */
-		netdev->trans_start = jiffies;
+		netif_trans_update(netdev);
 		break;
 
 	default:
@@ -373,7 +373,7 @@ static netdev_tx_t peak_usb_ndo_start_xmit(struct sk_buff *skb,
 			stats->tx_dropped++;
 		}
 	} else {
-		netdev->trans_start = jiffies;
+		netif_trans_update(netdev);
 
 		/* slow down tx path */
 		if (atomic_read(&dev->active_tx_urbs) >= PCAN_USB_MAX_TX_URBS)
diff --git a/drivers/net/cris/eth_v10.c b/drivers/net/cris/eth_v10.c
index 64c016a..221f5f0 100644
--- a/drivers/net/cris/eth_v10.c
+++ b/drivers/net/cris/eth_v10.c
@@ -1106,7 +1106,7 @@ e100_send_packet(struct sk_buff *skb, struct net_device *dev)
 
 	myNextTxDesc->skb = skb;
 
-	dev->trans_start = jiffies; /* NETIF_F_LLTX driver :( */
+	netif_trans_update(dev); /* NETIF_F_LLTX driver :( */
 
 	e100_hardware_send_packet(np, buf, skb->len);
 
diff --git a/drivers/net/ethernet/3com/3c509.c b/drivers/net/ethernet/3com/3c509.c
index 7677c74..91ada52 100644
--- a/drivers/net/ethernet/3com/3c509.c
+++ b/drivers/net/ethernet/3com/3c509.c
@@ -699,7 +699,7 @@ el3_tx_timeout (struct net_device *dev)
 		dev->name, inb(ioaddr + TX_STATUS), inw(ioaddr + EL3_STATUS),
 		inw(ioaddr + TX_FREE));
 	dev->stats.tx_errors++;
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	/* Issue TX_RESET and TX_START commands. */
 	outw(TxReset, ioaddr + EL3_CMD);
 	outw(TxEnable, ioaddr + EL3_CMD);
diff --git a/drivers/net/ethernet/3com/3c515.c b/drivers/net/ethernet/3com/3c515.c
index 942fb0d..b26e038 100644
--- a/drivers/net/ethernet/3com/3c515.c
+++ b/drivers/net/ethernet/3com/3c515.c
@@ -992,7 +992,7 @@ static void corkscrew_timeout(struct net_device *dev)
 		if (!(inw(ioaddr + EL3_STATUS) & CmdInProgress))
 			break;
 	outw(TxEnable, ioaddr + EL3_CMD);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	dev->stats.tx_errors++;
 	dev->stats.tx_dropped++;
 	netif_wake_queue(dev);
diff --git a/drivers/net/ethernet/3com/3c574_cs.c b/drivers/net/ethernet/3com/3c574_cs.c
index b9948f0..b88afd7 100644
--- a/drivers/net/ethernet/3com/3c574_cs.c
+++ b/drivers/net/ethernet/3com/3c574_cs.c
@@ -700,7 +700,7 @@ static void el3_tx_timeout(struct net_device *dev)
 	netdev_notice(dev, "Transmit timed out!\n");
 	dump_status(dev);
 	dev->stats.tx_errors++;
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	/* Issue TX_RESET and TX_START commands. */
 	tc574_wait_for_completion(dev, TxReset);
 	outw(TxEnable, ioaddr + EL3_CMD);
diff --git a/drivers/net/ethernet/3com/3c589_cs.c b/drivers/net/ethernet/3com/3c589_cs.c
index c5a3205..71396e4 100644
--- a/drivers/net/ethernet/3com/3c589_cs.c
+++ b/drivers/net/ethernet/3com/3c589_cs.c
@@ -534,7 +534,7 @@ static void el3_tx_timeout(struct net_device *dev)
 	netdev_warn(dev, "Transmit timed out!\n");
 	dump_status(dev);
 	dev->stats.tx_errors++;
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	/* Issue TX_RESET and TX_START commands. */
 	tc589_wait_for_completion(dev, TxReset);
 	outw(TxEnable, ioaddr + EL3_CMD);
diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index d81fced..25c55ab 100644
--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -1944,7 +1944,7 @@ static void vortex_tx_timeout(struct net_device *dev)
 	}
 	/* Issue Tx Enable */
 	iowrite16(TxEnable, ioaddr + EL3_CMD);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 }
 
 /*
diff --git a/drivers/net/ethernet/8390/axnet_cs.c b/drivers/net/ethernet/8390/axnet_cs.c
index ec6eac1..4ea717d 100644
--- a/drivers/net/ethernet/8390/axnet_cs.c
+++ b/drivers/net/ethernet/8390/axnet_cs.c
@@ -1041,7 +1041,7 @@ static netdev_tx_t axnet_start_xmit(struct sk_buff *skb,
 	{
 		ei_local->txing = 1;
 		NS8390_trigger_send(dev, send_length, output_page);
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 		if (output_page == ei_local->tx_start_page) 
 		{
 			ei_local->tx1 = -1;
@@ -1270,7 +1270,7 @@ static void ei_tx_intr(struct net_device *dev)
 		{
 			ei_local->txing = 1;
 			NS8390_trigger_send(dev, ei_local->tx2, ei_local->tx_start_page + 6);
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 			ei_local->tx2 = -1,
 			ei_local->lasttx = 2;
 		}
@@ -1287,7 +1287,7 @@ static void ei_tx_intr(struct net_device *dev)
 		{
 			ei_local->txing = 1;
 			NS8390_trigger_send(dev, ei_local->tx1, ei_local->tx_start_page);
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 			ei_local->tx1 = -1;
 			ei_local->lasttx = 1;
 		}
diff --git a/drivers/net/ethernet/8390/lib8390.c b/drivers/net/ethernet/8390/lib8390.c
index b96e885..60f8e2c 100644
--- a/drivers/net/ethernet/8390/lib8390.c
+++ b/drivers/net/ethernet/8390/lib8390.c
@@ -596,7 +596,7 @@ static void ei_tx_intr(struct net_device *dev)
 		if (ei_local->tx2 > 0) {
 			ei_local->txing = 1;
 			NS8390_trigger_send(dev, ei_local->tx2, ei_local->tx_start_page + 6);
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 			ei_local->tx2 = -1,
 			ei_local->lasttx = 2;
 		} else
@@ -609,7 +609,7 @@ static void ei_tx_intr(struct net_device *dev)
 		if (ei_local->tx1 > 0) {
 			ei_local->txing = 1;
 			NS8390_trigger_send(dev, ei_local->tx1, ei_local->tx_start_page);
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 			ei_local->tx1 = -1;
 			ei_local->lasttx = 1;
 		} else
diff --git a/drivers/net/ethernet/adaptec/starfire.c b/drivers/net/ethernet/adaptec/starfire.c
index ac72882..1d10696 100644
--- a/drivers/net/ethernet/adaptec/starfire.c
+++ b/drivers/net/ethernet/adaptec/starfire.c
@@ -1129,7 +1129,7 @@ static void tx_timeout(struct net_device *dev)
 
 	/* Trigger an immediate transmit demand. */
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	dev->stats.tx_errors++;
 	netif_wake_queue(dev);
 }
diff --git a/drivers/net/ethernet/adi/bfin_mac.c b/drivers/net/ethernet/adi/bfin_mac.c
index 74139cb..3d2245f 100644
--- a/drivers/net/ethernet/adi/bfin_mac.c
+++ b/drivers/net/ethernet/adi/bfin_mac.c
@@ -1430,7 +1430,7 @@ static void bfin_mac_timeout(struct net_device *dev)
 	bfin_mac_enable(lp->phydev);
 
 	/* We can accept TX packets again */
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 }
 
 static void bfin_mac_multicast_hash(struct net_device *dev)
diff --git a/drivers/net/ethernet/agere/et131x.c b/drivers/net/ethernet/agere/et131x.c
index 0907ab6..30defe6 100644
--- a/drivers/net/ethernet/agere/et131x.c
+++ b/drivers/net/ethernet/agere/et131x.c
@@ -3349,7 +3349,7 @@ static void et131x_down(struct net_device *netdev)
 	struct et131x_adapter *adapter = netdev_priv(netdev);
 
 	/* Save the timestamp for the TX watchdog, prevent a timeout */
-	netdev->trans_start = jiffies;
+	netif_trans_update(netdev);
 
 	phy_stop(adapter->phydev);
 	et131x_disable_txrx(netdev);
@@ -3816,7 +3816,7 @@ static netdev_tx_t et131x_tx(struct sk_buff *skb, struct net_device *netdev)
 		netif_stop_queue(netdev);
 
 	/* Save the timestamp for the TX timeout watchdog */
-	netdev->trans_start = jiffies;
+	netif_trans_update(netdev);
 
 	/* TCB is not available */
 	if (tx_ring->used >= NUM_TCB)
diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c
index 8d50314..de2c4bf 100644
--- a/drivers/net/ethernet/allwinner/sun4i-emac.c
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -428,7 +428,7 @@ static void emac_timeout(struct net_device *dev)
 	emac_reset(db);
 	emac_init_device(dev);
 	/* We can accept TX packets again */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	netif_wake_queue(dev);
 
 	/* Restore previous register address */
@@ -468,7 +468,7 @@ static int emac_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		       db->membase + EMAC_TX_CTL0_REG);
 
 		/* save the time stamp */
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 	} else if (channel == 1) {
 		/* set TX len */
 		writel(skb->len, db->membase + EMAC_TX_PL1_REG);
@@ -477,7 +477,7 @@ static int emac_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		       db->membase + EMAC_TX_CTL1_REG);
 
 		/* save the time stamp */
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 	}
 
 	if ((db->tx_fifo_stat & 3) == 3) {
diff --git a/drivers/net/ethernet/amd/7990.c b/drivers/net/ethernet/amd/7990.c
index 8e75755..dcf2a1f 100644
--- a/drivers/net/ethernet/amd/7990.c
+++ b/drivers/net/ethernet/amd/7990.c
@@ -260,7 +260,7 @@ static int lance_reset(struct net_device *dev)
 
 	load_csrs(lp);
 	lance_init_ring(dev);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	status = init_restart_lance(lp);
 #ifdef DEBUG_DRIVER
 	printk("Lance restart=%d\n", status);
@@ -530,7 +530,7 @@ void lance_tx_timeout(struct net_device *dev)
 {
 	printk("lance_tx_timeout\n");
 	lance_reset(dev);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 }
 EXPORT_SYMBOL_GPL(lance_tx_timeout);
diff --git a/drivers/net/ethernet/amd/a2065.c b/drivers/net/ethernet/amd/a2065.c
index 2a18d34..a83cd1c 100644
--- a/drivers/net/ethernet/amd/a2065.c
+++ b/drivers/net/ethernet/amd/a2065.c
@@ -512,7 +512,7 @@ static inline int lance_reset(struct net_device *dev)
 	load_csrs(lp);
 
 	lance_init_ring(dev);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_start_queue(dev);
 
 	status = init_restart_lance(lp);
diff --git a/drivers/net/ethernet/amd/atarilance.c b/drivers/net/ethernet/amd/atarilance.c
index b10964e..d2bc8e5 100644
--- a/drivers/net/ethernet/amd/atarilance.c
+++ b/drivers/net/ethernet/amd/atarilance.c
@@ -764,7 +764,7 @@ static void lance_tx_timeout (struct net_device *dev)
 	/* lance_restart, essentially */
 	lance_init_ring(dev);
 	REGA( CSR0 ) = CSR0_INEA | CSR0_INIT | CSR0_STRT;
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 }
 
diff --git a/drivers/net/ethernet/amd/au1000_eth.c b/drivers/net/ethernet/amd/au1000_eth.c
index d3977d0..9af309e 100644
--- a/drivers/net/ethernet/amd/au1000_eth.c
+++ b/drivers/net/ethernet/amd/au1000_eth.c
@@ -1074,7 +1074,7 @@ static void au1000_tx_timeout(struct net_device *dev)
 	netdev_err(dev, "au1000_tx_timeout: dev=%p\n", dev);
 	au1000_reset_mac(dev);
 	au1000_init(dev);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 }
 
diff --git a/drivers/net/ethernet/amd/declance.c b/drivers/net/ethernet/amd/declance.c
index b584b78..b799c7a 100644
--- a/drivers/net/ethernet/amd/declance.c
+++ b/drivers/net/ethernet/amd/declance.c
@@ -877,7 +877,7 @@ static inline int lance_reset(struct net_device *dev)
 
 	lance_init_ring(dev);
 	load_csrs(lp);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	status = init_restart_lance(lp);
 	return status;
 }
diff --git a/drivers/net/ethernet/amd/lance.c b/drivers/net/ethernet/amd/lance.c
index 3a7ebfd..abb1ba2 100644
--- a/drivers/net/ethernet/amd/lance.c
+++ b/drivers/net/ethernet/amd/lance.c
@@ -943,7 +943,7 @@ static void lance_tx_timeout (struct net_device *dev)
 #endif
 	lance_restart (dev, 0x0043, 1);
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue (dev);
 }
 
diff --git a/drivers/net/ethernet/amd/ni65.c b/drivers/net/ethernet/amd/ni65.c
index 1cf33ad..cda53db 100644
--- a/drivers/net/ethernet/amd/ni65.c
+++ b/drivers/net/ethernet/amd/ni65.c
@@ -782,7 +782,7 @@ static void ni65_stop_start(struct net_device *dev,struct priv *p)
 		if(!p->lock)
 			if (p->tmdnum || !p->xmit_queued)
 				netif_wake_queue(dev);
-		dev->trans_start = jiffies; /* prevent tx timeout */
+		netif_trans_update(dev); /* prevent tx timeout */
 	}
 	else
 		writedatareg(CSR0_STRT | csr0);
@@ -1148,7 +1148,7 @@ static void ni65_timeout(struct net_device *dev)
 		printk("%02x ",p->tmdhead[i].u.s.status);
 	printk("\n");
 	ni65_lance_reinit(dev);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 }
 
diff --git a/drivers/net/ethernet/amd/nmclan_cs.c b/drivers/net/ethernet/amd/nmclan_cs.c
index 27245ef..2807e18 100644
--- a/drivers/net/ethernet/amd/nmclan_cs.c
+++ b/drivers/net/ethernet/amd/nmclan_cs.c
@@ -851,7 +851,7 @@ static void mace_tx_timeout(struct net_device *dev)
 #else /* #if RESET_ON_TIMEOUT */
   pr_cont("NOT resetting card\n");
 #endif /* #if RESET_ON_TIMEOUT */
-  dev->trans_start = jiffies; /* prevent tx timeout */
+  netif_trans_update(dev); /* prevent tx timeout */
   netif_wake_queue(dev);
 }
 
diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index 7ccebae..c22bf52 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -448,7 +448,7 @@ static void pcnet32_netif_stop(struct net_device *dev)
 {
 	struct pcnet32_private *lp = netdev_priv(dev);
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	napi_disable(&lp->napi);
 	netif_tx_disable(dev);
 }
@@ -2426,7 +2426,7 @@ static void pcnet32_tx_timeout(struct net_device *dev)
 	}
 	pcnet32_restart(dev, CSR0_NORMAL);
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 
 	spin_unlock_irqrestore(&lp->lock, flags);
diff --git a/drivers/net/ethernet/amd/sunlance.c b/drivers/net/ethernet/amd/sunlance.c
index 7847638..9b56b40 100644
--- a/drivers/net/ethernet/amd/sunlance.c
+++ b/drivers/net/ethernet/amd/sunlance.c
@@ -997,7 +997,7 @@ static int lance_reset(struct net_device *dev)
 	}
 	lp->init_ring(dev);
 	load_csrs(lp);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	status = init_restart_lance(lp);
 	return status;
 }
diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c
index 55b118e..9fe8b5e 100644
--- a/drivers/net/ethernet/atheros/alx/main.c
+++ b/drivers/net/ethernet/atheros/alx/main.c
@@ -745,7 +745,7 @@ static netdev_features_t alx_fix_features(struct net_device *netdev,
 
 static void alx_netif_stop(struct alx_priv *alx)
 {
-	alx->dev->trans_start = jiffies;
+	netif_trans_update(alx->dev);
 	if (netif_carrier_ok(alx->dev)) {
 		netif_carrier_off(alx->dev);
 		netif_tx_disable(alx->dev);
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index 30b0c28..543bf38 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -1117,7 +1117,7 @@ static void bcm_sysport_tx_timeout(struct net_device *dev)
 {
 	netdev_warn(dev, "transmit timeout!\n");
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	dev->stats.tx_errors++;
 
 	netif_tx_wake_all_queues(dev);
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index fbff226..5414563 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -3059,7 +3059,7 @@ static void bcmgenet_timeout(struct net_device *dev)
 	bcmgenet_intrl2_0_writel(priv, int0_enable, INTRL2_CPU_MASK_CLEAR);
 	bcmgenet_intrl2_1_writel(priv, int1_enable, INTRL2_CPU_MASK_CLEAR);
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	dev->stats.tx_errors++;
 
diff --git a/drivers/net/ethernet/broadcom/sb1250-mac.c b/drivers/net/ethernet/broadcom/sb1250-mac.c
index eacc559..f1b8118 100644
--- a/drivers/net/ethernet/broadcom/sb1250-mac.c
+++ b/drivers/net/ethernet/broadcom/sb1250-mac.c
@@ -2462,7 +2462,7 @@ static void sbmac_tx_timeout (struct net_device *dev)
 	spin_lock_irqsave(&sc->sbm_lock, flags);
 
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	dev->stats.tx_errors++;
 
 	spin_unlock_irqrestore(&sc->sbm_lock, flags);
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 3010080..ff300f7 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -7383,7 +7383,7 @@ static void tg3_napi_fini(struct tg3 *tp)
 
 static inline void tg3_netif_stop(struct tg3 *tp)
 {
-	tp->dev->trans_start = jiffies;	/* prevent tx timeout */
+	netif_trans_update(tp->dev);	/* prevent tx timeout */
 	tg3_napi_disable(tp);
 	netif_carrier_off(tp->dev);
 	netif_tx_disable(tp->dev);
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c
index 34d269c..8de79ae 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c
@@ -2899,7 +2899,7 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
 	if (status == IQ_SEND_STOP)
 		stop_q(lio->netdev, q_idx);
 
-	netdev->trans_start = jiffies;
+	netif_trans_update(netdev);
 
 	stats->tx_done++;
 	stats->tx_tot_bytes += skb->len;
@@ -2928,7 +2928,7 @@ static void liquidio_tx_timeout(struct net_device *netdev)
 	netif_info(lio, tx_err, lio->netdev,
 		   "Transmit timeout tx_dropped:%ld, waking up queues now!!\n",
 		   netdev->stats.tx_dropped);
-	netdev->trans_start = jiffies;
+	netif_trans_update(netdev);
 	txqs_wake(netdev);
 }
 
diff --git a/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c b/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
index c177c7c..388cd79 100644
--- a/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
+++ b/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
@@ -1320,7 +1320,7 @@ static int octeon_mgmt_xmit(struct sk_buff *skb, struct net_device *netdev)
 	/* Ring the bell.  */
 	cvmx_write_csr(p->mix + MIX_ORING2, 1);
 
-	netdev->trans_start = jiffies;
+	netif_trans_update(netdev);
 	rv = NETDEV_TX_OK;
 out:
 	octeon_mgmt_update_tx_stats(netdev);
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
index bfee298..a19e73f 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
@@ -1442,7 +1442,7 @@ static void nicvf_reset_task(struct work_struct *work)
 
 	nicvf_stop(nic->netdev);
 	nicvf_open(nic->netdev);
-	nic->netdev->trans_start = jiffies;
+	netif_trans_update(nic->netdev);
 }
 
 static int nicvf_config_loopback(struct nicvf *nic,
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
index 1ccd282..1bb57d3 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
@@ -1448,7 +1448,7 @@ int t4vf_eth_xmit(struct sk_buff *skb, struct net_device *dev)
 	 * the new TX descriptors and return success.
 	 */
 	txq_advance(&txq->q, ndesc);
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	ring_tx_db(adapter, &txq->q, ndesc);
 	return NETDEV_TX_OK;
 
diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index 48d9194..9e06130 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -966,7 +966,7 @@ dm9000_init_dm9000(struct net_device *dev)
 	/* Init Driver variable */
 	db->tx_pkt_cnt = 0;
 	db->queue_pkt_len = 0;
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 }
 
 /* Our watchdog timed out. Called by the networking layer */
@@ -985,7 +985,7 @@ static void dm9000_timeout(struct net_device *dev)
 	dm9000_init_dm9000(dev);
 	dm9000_unmask_interrupts(db);
 	/* We can accept TX packets again */
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 
 	/* Restore previous register address */
diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index d88fbab..cbe8497 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -1336,7 +1336,7 @@ de4x5_open(struct net_device *dev)
     }
 
     lp->interrupt = UNMASK_INTERRUPTS;
-    dev->trans_start = jiffies; /* prevent tx timeout */
+    netif_trans_update(dev); /* prevent tx timeout */
 
     START_DE4X5;
 
@@ -1935,7 +1935,7 @@ set_multicast_list(struct net_device *dev)
 
 	    lp->tx_new = (lp->tx_new + 1) % lp->txRingSize;
 	    outl(POLL_DEMAND, DE4X5_TPD);       /* Start the TX */
-	    dev->trans_start = jiffies; /* prevent tx timeout */
+	    netif_trans_update(dev); /* prevent tx timeout */
 	}
     }
 }
diff --git a/drivers/net/ethernet/dec/tulip/dmfe.c b/drivers/net/ethernet/dec/tulip/dmfe.c
index dd1c815..8785f48 100644
--- a/drivers/net/ethernet/dec/tulip/dmfe.c
+++ b/drivers/net/ethernet/dec/tulip/dmfe.c
@@ -725,7 +725,7 @@ static netdev_tx_t dmfe_start_xmit(struct sk_buff *skb,
 		txptr->tdes0 = cpu_to_le32(0x80000000);	/* Set owner bit */
 		db->tx_packet_cnt++;			/* Ready to send */
 		dw32(DCR1, 0x1);			/* Issue Tx polling */
-		dev->trans_start = jiffies;		/* saved time stamp */
+		netif_trans_update(dev);		/* saved time stamp */
 	} else {
 		db->tx_queue_cnt++;			/* queue TX packet */
 		dw32(DCR1, 0x1);			/* Issue Tx polling */
@@ -931,7 +931,7 @@ static void dmfe_free_tx_pkt(struct net_device *dev, struct dmfe_board_info * db
 		db->tx_packet_cnt++;			/* Ready to send */
 		db->tx_queue_cnt--;
 		dw32(DCR1, 0x1);			/* Issue Tx polling */
-		dev->trans_start = jiffies;		/* saved time stamp */
+		netif_trans_update(dev);		/* saved time stamp */
 	}
 
 	/* Resource available check */
@@ -1542,7 +1542,7 @@ static void send_filter_frame(struct net_device *dev)
 		update_cr6(db->cr6_data | 0x2000, ioaddr);
 		dw32(DCR1, 0x1);	/* Issue Tx polling */
 		update_cr6(db->cr6_data, ioaddr);
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 	} else
 		db->tx_queue_cnt++;	/* Put in TX queue */
 }
diff --git a/drivers/net/ethernet/dec/tulip/pnic.c b/drivers/net/ethernet/dec/tulip/pnic.c
index 5364563..7bcccf5 100644
--- a/drivers/net/ethernet/dec/tulip/pnic.c
+++ b/drivers/net/ethernet/dec/tulip/pnic.c
@@ -44,7 +44,7 @@ void pnic_do_nway(struct net_device *dev)
 			tp->csr6 = new_csr6;
 			/* Restart Tx */
 			tulip_restart_rxtx(tp);
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 		}
 	}
 }
@@ -70,7 +70,7 @@ void pnic_lnk_change(struct net_device *dev, int csr5)
 			iowrite32(tp->csr6, ioaddr + CSR6);
 			iowrite32(0x30, ioaddr + CSR12);
 			iowrite32(0x0201F078, ioaddr + 0xB8); /* Turn on autonegotiation. */
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 		}
 	} else if (ioread32(ioaddr + CSR5) & TPLnkPass) {
 		if (tulip_media_cap[dev->if_port] & MediaIsMII) {
@@ -147,7 +147,7 @@ void pnic_timer(unsigned long data)
 				tp->csr6 = new_csr6;
 				/* Restart Tx */
 				tulip_restart_rxtx(tp);
-				dev->trans_start = jiffies;
+				netif_trans_update(dev);
 				if (tulip_debug > 1)
 					dev_info(&dev->dev,
 						 "Changing PNIC configuration to %s %s-duplex, CSR6 %08x\n",
diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index 94d0eeb..bbde90b 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -605,7 +605,7 @@ static void tulip_tx_timeout(struct net_device *dev)
 
 out_unlock:
 	spin_unlock_irqrestore (&tp->lock, flags);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue (dev);
 }
 
diff --git a/drivers/net/ethernet/dec/tulip/uli526x.c b/drivers/net/ethernet/dec/tulip/uli526x.c
index 447d092..e750b5d 100644
--- a/drivers/net/ethernet/dec/tulip/uli526x.c
+++ b/drivers/net/ethernet/dec/tulip/uli526x.c
@@ -636,7 +636,7 @@ static netdev_tx_t uli526x_start_xmit(struct sk_buff *skb,
 		txptr->tdes0 = cpu_to_le32(0x80000000);	/* Set owner bit */
 		db->tx_packet_cnt++;			/* Ready to send */
 		uw32(DCR1, 0x1);			/* Issue Tx polling */
-		dev->trans_start = jiffies;		/* saved time stamp */
+		netif_trans_update(dev);		/* saved time stamp */
 	}
 
 	/* Tx resource check */
@@ -1431,7 +1431,7 @@ static void send_filter_frame(struct net_device *dev, int mc_cnt)
 		update_cr6(db->cr6_data | 0x2000, ioaddr);
 		uw32(DCR1, 0x1);	/* Issue Tx polling */
 		update_cr6(db->cr6_data, ioaddr);
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 	} else
 		netdev_err(dev, "No Tx resource - Send_filter_frame!\n");
 }
diff --git a/drivers/net/ethernet/dec/tulip/winbond-840.c b/drivers/net/ethernet/dec/tulip/winbond-840.c
index 3c0e4d5..1f62b94 100644
--- a/drivers/net/ethernet/dec/tulip/winbond-840.c
+++ b/drivers/net/ethernet/dec/tulip/winbond-840.c
@@ -966,7 +966,7 @@ static void tx_timeout(struct net_device *dev)
 	enable_irq(irq);
 
 	netif_wake_queue(dev);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	np->stats.tx_errors++;
 }
 
diff --git a/drivers/net/ethernet/dlink/dl2k.c b/drivers/net/ethernet/dlink/dl2k.c
index f92b6d9..78f1446 100644
--- a/drivers/net/ethernet/dlink/dl2k.c
+++ b/drivers/net/ethernet/dlink/dl2k.c
@@ -706,7 +706,7 @@ rio_tx_timeout (struct net_device *dev)
 		dev->name, dr32(TxStatus));
 	rio_free_tx(dev, 0);
 	dev->if_port = 0;
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 }
 
 static netdev_tx_t
diff --git a/drivers/net/ethernet/dlink/sundance.c b/drivers/net/ethernet/dlink/sundance.c
index a28a2e5..58c6338 100644
--- a/drivers/net/ethernet/dlink/sundance.c
+++ b/drivers/net/ethernet/dlink/sundance.c
@@ -1011,7 +1011,7 @@ static void tx_timeout(struct net_device *dev)
 
 	dev->if_port = 0;
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	dev->stats.tx_errors++;
 	if (np->cur_tx - np->dirty_tx < TX_QUEUE_LEN - 4) {
 		netif_wake_queue(dev);
diff --git a/drivers/net/ethernet/fealnx.c b/drivers/net/ethernet/fealnx.c
index b1b9eba..c08bd76 100644
--- a/drivers/net/ethernet/fealnx.c
+++ b/drivers/net/ethernet/fealnx.c
@@ -1227,7 +1227,7 @@ static void fealnx_tx_timeout(struct net_device *dev)
 
 	spin_unlock_irqrestore(&np->lock, flags);
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	dev->stats.tx_errors++;
 	netif_wake_queue(dev); /* or .._start_.. ?? */
 }
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index d2f917a..a580041 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -2076,7 +2076,7 @@ void gfar_start(struct gfar_private *priv)
 
 	gfar_ints_enable(priv);
 
-	priv->ndev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(priv->ndev); /* prevent tx timeout */
 }
 
 static void free_grp_irqs(struct gfar_priv_grp *grp)
diff --git a/drivers/net/ethernet/fujitsu/fmvj18x_cs.c b/drivers/net/ethernet/fujitsu/fmvj18x_cs.c
index 678f501..399cfd2 100644
--- a/drivers/net/ethernet/fujitsu/fmvj18x_cs.c
+++ b/drivers/net/ethernet/fujitsu/fmvj18x_cs.c
@@ -746,7 +746,7 @@ static irqreturn_t fjn_interrupt(int dummy, void *dev_id)
 	    lp->sent = lp->tx_queue ;
 	    lp->tx_queue = 0;
 	    lp->tx_queue_len = 0;
-	    dev->trans_start = jiffies;
+	    netif_trans_update(dev);
 	} else {
 	    lp->tx_started = 0;
 	}
diff --git a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
index e51892d..b9f2ea5 100644
--- a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
+++ b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
@@ -636,7 +636,7 @@ static int hix5hd2_net_xmit(struct sk_buff *skb, struct net_device *dev)
 	pos = dma_ring_incr(pos, TX_DESC_NUM);
 	writel_relaxed(dma_byte(pos), priv->base + TX_BQ_WR_ADDR);
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	dev->stats.tx_packets++;
 	dev->stats.tx_bytes += skb->len;
 	netdev_sent_queue(dev, skb->len);
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index e47aff2..e621636 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -1275,7 +1275,7 @@ void hns_nic_net_reinit(struct net_device *netdev)
 {
 	struct hns_nic_priv *priv = netdev_priv(netdev);
 
-	priv->netdev->trans_start = jiffies;
+	netif_trans_update(priv->netdev);
 	while (test_and_set_bit(NIC_STATE_REINITING, &priv->state))
 		usleep_range(1000, 2000);
 
@@ -1376,7 +1376,7 @@ static netdev_tx_t hns_nic_net_xmit(struct sk_buff *skb,
 	ret = hns_nic_net_xmit_hw(ndev, skb,
 				  &tx_ring_data(priv, skb->queue_mapping));
 	if (ret == NETDEV_TX_OK) {
-		ndev->trans_start = jiffies;
+		netif_trans_update(ndev);
 		ndev->stats.tx_bytes += skb->len;
 		ndev->stats.tx_packets++;
 	}
@@ -1648,7 +1648,7 @@ static void hns_nic_reset_subtask(struct hns_nic_priv *priv)
 
 	rtnl_lock();
 	/* put off any impending NetWatchDogTimeout */
-	priv->netdev->trans_start = jiffies;
+	netif_trans_update(priv->netdev);
 
 	if (type == HNAE_PORT_DEBUG) {
 		hns_nic_net_reinit(priv->netdev);
diff --git a/drivers/net/ethernet/hp/hp100.c b/drivers/net/ethernet/hp/hp100.c
index 3daf2d4..631dbc7 100644
--- a/drivers/net/ethernet/hp/hp100.c
+++ b/drivers/net/ethernet/hp/hp100.c
@@ -1102,7 +1102,7 @@ static int hp100_open(struct net_device *dev)
 		return -EAGAIN;
 	}
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_start_queue(dev);
 
 	lp->lan_type = hp100_sense_lan(dev);
diff --git a/drivers/net/ethernet/i825xx/82596.c b/drivers/net/ethernet/i825xx/82596.c
index 7ce6379..befb4ac 100644
--- a/drivers/net/ethernet/i825xx/82596.c
+++ b/drivers/net/ethernet/i825xx/82596.c
@@ -1042,7 +1042,7 @@ static void i596_tx_timeout (struct net_device *dev)
 		lp->last_restart = dev->stats.tx_packets;
 	}
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue (dev);
 }
 
diff --git a/drivers/net/ethernet/i825xx/lib82596.c b/drivers/net/ethernet/i825xx/lib82596.c
index c984998..3dbc53c2 100644
--- a/drivers/net/ethernet/i825xx/lib82596.c
+++ b/drivers/net/ethernet/i825xx/lib82596.c
@@ -960,7 +960,7 @@ static void i596_tx_timeout (struct net_device *dev)
 		lp->last_restart = dev->stats.tx_packets;
 	}
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue (dev);
 }
 
diff --git a/drivers/net/ethernet/i825xx/sun3_82586.c b/drivers/net/ethernet/i825xx/sun3_82586.c
index 353f57f6..21c84cc 100644
--- a/drivers/net/ethernet/i825xx/sun3_82586.c
+++ b/drivers/net/ethernet/i825xx/sun3_82586.c
@@ -983,7 +983,7 @@ static void sun3_82586_timeout(struct net_device *dev)
 		p->scb->cmd_cuc = CUC_START;
 		sun3_attn586();
 		WAIT_4_SCB_CMD();
-		dev->trans_start = jiffies; /* prevent tx timeout */
+		netif_trans_update(dev); /* prevent tx timeout */
 		return 0;
 	}
 #endif
@@ -996,7 +996,7 @@ static void sun3_82586_timeout(struct net_device *dev)
 		sun3_82586_close(dev);
 		sun3_82586_open(dev);
 	}
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 }
 
 /******************************************************
diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
index 5d7db6c..4c9771d 100644
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -301,7 +301,7 @@ static inline void emac_netif_stop(struct emac_instance *dev)
 	dev->no_mcast = 1;
 	netif_addr_unlock(dev->ndev);
 	netif_tx_unlock_bh(dev->ndev);
-	dev->ndev->trans_start = jiffies;	/* prevent tx timeout */
+	netif_trans_update(dev->ndev);	/* prevent tx timeout */
 	mal_poll_disable(dev->mal, &dev->commac);
 	netif_tx_disable(dev->ndev);
 }
@@ -1377,7 +1377,7 @@ static inline int emac_xmit_finish(struct emac_instance *dev, int len)
 		DBG2(dev, "stopped TX queue" NL);
 	}
 
-	ndev->trans_start = jiffies;
+	netif_trans_update(ndev);
 	++dev->stats.tx_packets;
 	dev->stats.tx_bytes += len;
 
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
index 206a466..e05aca9 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
@@ -145,7 +145,7 @@ static void fm10k_reinit(struct fm10k_intfc *interface)
 	WARN_ON(in_interrupt());
 
 	/* put off any impending NetWatchDogTimeout */
-	netdev->trans_start = jiffies;
+	netif_trans_update(netdev);
 
 	while (test_and_set_bit(__FM10K_RESETTING, &interface->state))
 		usleep_range(1000, 2000);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 18dcfc5..5f3d239 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -5287,7 +5287,7 @@ void ixgbe_reinit_locked(struct ixgbe_adapter *adapter)
 {
 	WARN_ON(in_interrupt());
 	/* put off any impending NetWatchDogTimeout */
-	adapter->netdev->trans_start = jiffies;
+	netif_trans_update(adapter->netdev);
 
 	while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
 		usleep_range(1000, 2000);
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index d74f5f4..1799fe1 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -152,7 +152,7 @@ static inline void korina_abort_dma(struct net_device *dev,
 	       writel(0x10, &ch->dmac);
 
 	       while (!(readl(&ch->dmas) & DMA_STAT_HALT))
-		       dev->trans_start = jiffies;
+		       netif_trans_update(dev);
 
 	       writel(0, &ch->dmas);
        }
@@ -283,7 +283,7 @@ static int korina_send_packet(struct sk_buff *skb, struct net_device *dev)
 	}
 	dma_cache_wback((u32) td, sizeof(*td));
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	spin_unlock_irqrestore(&lp->lock, flags);
 
 	return NETDEV_TX_OK;
@@ -622,7 +622,7 @@ korina_tx_dma_interrupt(int irq, void *dev_id)
 				&(lp->tx_dma_regs->dmandptr));
 			lp->tx_chain_status = desc_empty;
 			lp->tx_chain_head = lp->tx_chain_tail;
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 		}
 		if (dmas & DMA_STAT_ERR)
 			printk(KERN_ERR "%s: DMA error\n", dev->name);
@@ -811,7 +811,7 @@ static int korina_init(struct net_device *dev)
 	/* reset ethernet logic */
 	writel(0, &lp->eth_regs->ethintfc);
 	while ((readl(&lp->eth_regs->ethintfc) & ETH_INT_FC_RIP))
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 
 	/* Enable Ethernet Interface */
 	writel(ETH_INT_FC_EN, &lp->eth_regs->ethintfc);
diff --git a/drivers/net/ethernet/lantiq_etop.c b/drivers/net/ethernet/lantiq_etop.c
index b630ef1..dc82b1b 100644
--- a/drivers/net/ethernet/lantiq_etop.c
+++ b/drivers/net/ethernet/lantiq_etop.c
@@ -519,7 +519,7 @@ ltq_etop_tx(struct sk_buff *skb, struct net_device *dev)
 	byte_offset = CPHYSADDR(skb->data) % 16;
 	ch->skb[ch->dma.desc] = skb;
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	spin_lock_irqsave(&priv->lock, flags);
 	desc->addr = ((unsigned int) dma_map_single(NULL, skb->data, len,
@@ -657,7 +657,7 @@ ltq_etop_tx_timeout(struct net_device *dev)
 	err = ltq_etop_hw_init(dev);
 	if (err)
 		goto err_hw;
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	netif_wake_queue(dev);
 	return;
 
diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c
index 7ace07d..c6268b9 100644
--- a/drivers/net/ethernet/marvell/pxa168_eth.c
+++ b/drivers/net/ethernet/marvell/pxa168_eth.c
@@ -1295,7 +1295,7 @@ static int pxa168_eth_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	stats->tx_bytes += length;
 	stats->tx_packets++;
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	if (pep->tx_ring_size - pep->tx_desc_count <= 1) {
 		/* We handled the current skb, but now we are out of space.*/
 		netif_stop_queue(dev);
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index ec0a221..467138b 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -2418,7 +2418,7 @@ static int sky2_change_mtu(struct net_device *dev, int new_mtu)
 	sky2_write32(hw, B0_IMSK, 0);
 	sky2_read32(hw, B0_IMSK);
 
-	dev->trans_start = jiffies;	/* prevent tx timeout */
+	netif_trans_update(dev);	/* prevent tx timeout */
 	napi_disable(&hw->napi);
 	netif_tx_disable(dev);
 
diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c
index 75dc46c..280e761 100644
--- a/drivers/net/ethernet/micrel/ksz884x.c
+++ b/drivers/net/ethernet/micrel/ksz884x.c
@@ -4790,7 +4790,7 @@ static void transmit_cleanup(struct dev_info *hw_priv, int normal)
 
 	/* Notify the network subsystem that the packet has been sent. */
 	if (dev)
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 }
 
 /**
@@ -4965,7 +4965,7 @@ static void netdev_tx_timeout(struct net_device *dev)
 		hw_ena_intr(hw);
 	}
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	netif_wake_queue(dev);
 }
 
diff --git a/drivers/net/ethernet/microchip/encx24j600.c b/drivers/net/ethernet/microchip/encx24j600.c
index 707283b..42e3407 100644
--- a/drivers/net/ethernet/microchip/encx24j600.c
+++ b/drivers/net/ethernet/microchip/encx24j600.c
@@ -874,7 +874,7 @@ static netdev_tx_t encx24j600_tx(struct sk_buff *skb, struct net_device *dev)
 	netif_stop_queue(dev);
 
 	/* save the timestamp */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	/* Remember the skb for deferred processing */
 	priv->tx_skb = skb;
diff --git a/drivers/net/ethernet/moxa/moxart_ether.c b/drivers/net/ethernet/moxa/moxart_ether.c
index 3e67f45..4367dd6 100644
--- a/drivers/net/ethernet/moxa/moxart_ether.c
+++ b/drivers/net/ethernet/moxa/moxart_ether.c
@@ -376,7 +376,7 @@ static int moxart_mac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 
 	priv->tx_head = TX_NEXT(tx_head);
 
-	ndev->trans_start = jiffies;
+	netif_trans_update(ndev);
 	ret = NETDEV_TX_OK;
 out_unlock:
 	spin_unlock_irq(&priv->txlock);
diff --git a/drivers/net/ethernet/natsemi/natsemi.c b/drivers/net/ethernet/natsemi/natsemi.c
index 122c2ee..ed89029 100644
--- a/drivers/net/ethernet/natsemi/natsemi.c
+++ b/drivers/net/ethernet/natsemi/natsemi.c
@@ -1904,7 +1904,7 @@ static void ns_tx_timeout(struct net_device *dev)
 	spin_unlock_irq(&np->lock);
 	enable_irq(irq);
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	dev->stats.tx_errors++;
 	netif_wake_queue(dev);
 }
diff --git a/drivers/net/ethernet/natsemi/sonic.c b/drivers/net/ethernet/natsemi/sonic.c
index 1bd419d..612c7a4 100644
--- a/drivers/net/ethernet/natsemi/sonic.c
+++ b/drivers/net/ethernet/natsemi/sonic.c
@@ -174,7 +174,7 @@ static void sonic_tx_timeout(struct net_device *dev)
 	/* Try to restart the adaptor. */
 	sonic_init(dev);
 	lp->stats.tx_errors++;
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 }
 
diff --git a/drivers/net/ethernet/nuvoton/w90p910_ether.c b/drivers/net/ethernet/nuvoton/w90p910_ether.c
index 52d9a94..87b7b81 100644
--- a/drivers/net/ethernet/nuvoton/w90p910_ether.c
+++ b/drivers/net/ethernet/nuvoton/w90p910_ether.c
@@ -476,7 +476,7 @@ static void w90p910_reset_mac(struct net_device *dev)
 
 	w90p910_init_desc(dev);
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	ether->cur_tx = 0x0;
 	ether->finish_tx = 0x0;
 	ether->cur_rx = 0x0;
@@ -490,7 +490,7 @@ static void w90p910_reset_mac(struct net_device *dev)
 	w90p910_trigger_tx(dev);
 	w90p910_trigger_rx(dev);
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 
 	if (netif_queue_stopped(dev))
 		netif_wake_queue(dev);
diff --git a/drivers/net/ethernet/packetengines/hamachi.c b/drivers/net/ethernet/packetengines/hamachi.c
index 13d88a6..91be2f0 100644
--- a/drivers/net/ethernet/packetengines/hamachi.c
+++ b/drivers/net/ethernet/packetengines/hamachi.c
@@ -1144,7 +1144,7 @@ static void hamachi_tx_timeout(struct net_device *dev)
 	hmp->rx_ring[RX_RING_SIZE-1].status_n_length |= cpu_to_le32(DescEndRing);
 
 	/* Trigger an immediate transmit demand. */
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	dev->stats.tx_errors++;
 
 	/* Restart the chip's Tx/Rx processes . */
diff --git a/drivers/net/ethernet/packetengines/yellowfin.c b/drivers/net/ethernet/packetengines/yellowfin.c
index fa2db41..fb1d103 100644
--- a/drivers/net/ethernet/packetengines/yellowfin.c
+++ b/drivers/net/ethernet/packetengines/yellowfin.c
@@ -714,7 +714,7 @@ static void yellowfin_tx_timeout(struct net_device *dev)
 	if (yp->cur_tx - yp->dirty_tx < TX_QUEUE_SIZE)
 		netif_wake_queue (dev);		/* Typical path */
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	dev->stats.tx_errors++;
 }
 
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index fd362b6..cad37af 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -2285,7 +2285,7 @@ static void netxen_tx_timeout_task(struct work_struct *work)
 			goto request_reset;
 		}
 	}
-	adapter->netdev->trans_start = jiffies;
+	netif_trans_update(adapter->netdev);
 	rtnl_unlock();
 	return;
 
diff --git a/drivers/net/ethernet/qualcomm/qca_spi.c b/drivers/net/ethernet/qualcomm/qca_spi.c
index 82f3c88..6e2add9 100644
--- a/drivers/net/ethernet/qualcomm/qca_spi.c
+++ b/drivers/net/ethernet/qualcomm/qca_spi.c
@@ -719,7 +719,7 @@ qcaspi_netdev_xmit(struct sk_buff *skb, struct net_device *dev)
 		qca->stats.ring_full++;
 	}
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	if (qca->spi_thread &&
 	    qca->spi_thread->state != TASK_RUNNING)
diff --git a/drivers/net/ethernet/realtek/atp.c b/drivers/net/ethernet/realtek/atp.c
index d77d60e..5cb9678 100644
--- a/drivers/net/ethernet/realtek/atp.c
+++ b/drivers/net/ethernet/realtek/atp.c
@@ -544,7 +544,7 @@ static void tx_timeout(struct net_device *dev)
 	dev->stats.tx_errors++;
 	/* Try to restart the adapter. */
 	hardware_init(dev);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 	dev->stats.tx_errors++;
 }
diff --git a/drivers/net/ethernet/seeq/sgiseeq.c b/drivers/net/ethernet/seeq/sgiseeq.c
index ca73366..c2bd537 100644
--- a/drivers/net/ethernet/seeq/sgiseeq.c
+++ b/drivers/net/ethernet/seeq/sgiseeq.c
@@ -572,7 +572,7 @@ static inline int sgiseeq_reset(struct net_device *dev)
 	if (err)
 		return err;
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 
 	return 0;
@@ -648,7 +648,7 @@ static void timeout(struct net_device *dev)
 	printk(KERN_NOTICE "%s: transmit timed out, resetting\n", dev->name);
 	sgiseeq_reset(dev);
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 }
 
diff --git a/drivers/net/ethernet/sgi/meth.c b/drivers/net/ethernet/sgi/meth.c
index 5eac523..aaa80f1 100644
--- a/drivers/net/ethernet/sgi/meth.c
+++ b/drivers/net/ethernet/sgi/meth.c
@@ -708,7 +708,7 @@ static int meth_tx(struct sk_buff *skb, struct net_device *dev)
 	mace->eth.dma_ctrl = priv->dma_ctrl;
 
 	meth_add_to_tx_ring(priv, skb);
-	dev->trans_start = jiffies; /* save the timestamp */
+	netif_trans_update(dev); /* save the timestamp */
 
 	/* If TX ring is full, tell the upper layer to stop sending packets */
 	if (meth_tx_full(dev)) {
@@ -756,7 +756,7 @@ static void meth_tx_timeout(struct net_device *dev)
 	/* Enable interrupt */
 	spin_unlock_irqrestore(&priv->meth_lock, flags);
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 }
 
diff --git a/drivers/net/ethernet/sis/sis900.c b/drivers/net/ethernet/sis/sis900.c
index fd812d2..95001ee4 100644
--- a/drivers/net/ethernet/sis/sis900.c
+++ b/drivers/net/ethernet/sis/sis900.c
@@ -1575,7 +1575,7 @@ static void sis900_tx_timeout(struct net_device *net_dev)
 
 	spin_unlock_irqrestore(&sis_priv->lock, flags);
 
-	net_dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(net_dev); /* prevent tx timeout */
 
 	/* load Transmit Descriptor Register */
 	sw32(txdp, sis_priv->tx_ring_dma);
diff --git a/drivers/net/ethernet/smsc/epic100.c b/drivers/net/ethernet/smsc/epic100.c
index 443f1da..7186b89 100644
--- a/drivers/net/ethernet/smsc/epic100.c
+++ b/drivers/net/ethernet/smsc/epic100.c
@@ -889,7 +889,7 @@ static void epic_tx_timeout(struct net_device *dev)
 		ew32(COMMAND, TxQueued);
 	}
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	dev->stats.tx_errors++;
 	if (!ep->tx_full)
 		netif_wake_queue(dev);
diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c
index a733868..cb49c96 100644
--- a/drivers/net/ethernet/smsc/smc911x.c
+++ b/drivers/net/ethernet/smsc/smc911x.c
@@ -499,7 +499,7 @@ static void smc911x_hardware_send_pkt(struct net_device *dev)
 	/* DMA complete IRQ will free buffer and set jiffies */
 #else
 	SMC_PUSH_DATA(lp, buf, len);
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	dev_kfree_skb_irq(skb);
 #endif
 	if (!lp->tx_throttle) {
@@ -1189,7 +1189,7 @@ smc911x_tx_dma_irq(void *data)
 	DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev, "TX DMA irq handler\n");
 	BUG_ON(skb == NULL);
 	dma_unmap_single(NULL, tx_dmabuf, tx_dmalen, DMA_TO_DEVICE);
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	dev_kfree_skb_irq(skb);
 	lp->current_tx_skb = NULL;
 	if (lp->pending_tx_skb != NULL)
@@ -1283,7 +1283,7 @@ static void smc911x_timeout(struct net_device *dev)
 		schedule_work(&lp->phy_configure);
 
 	/* We can accept TX packets again */
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 }
 
diff --git a/drivers/net/ethernet/smsc/smc9194.c b/drivers/net/ethernet/smsc/smc9194.c
index 664f596..d496888 100644
--- a/drivers/net/ethernet/smsc/smc9194.c
+++ b/drivers/net/ethernet/smsc/smc9194.c
@@ -663,7 +663,7 @@ static void smc_hardware_send_packet( struct net_device * dev )
 	lp->saved_skb = NULL;
 	dev_kfree_skb_any (skb);
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	/* we can send another packet */
 	netif_wake_queue(dev);
@@ -1104,7 +1104,7 @@ static void smc_timeout(struct net_device *dev)
 	/* "kick" the adaptor */
 	smc_reset( dev->base_addr );
 	smc_enable( dev->base_addr );
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	/* clear anything saved */
 	((struct smc_local *)netdev_priv(dev))->saved_skb = NULL;
 	netif_wake_queue(dev);
diff --git a/drivers/net/ethernet/smsc/smc91c92_cs.c b/drivers/net/ethernet/smsc/smc91c92_cs.c
index 3449893..db3c696 100644
--- a/drivers/net/ethernet/smsc/smc91c92_cs.c
+++ b/drivers/net/ethernet/smsc/smc91c92_cs.c
@@ -1172,7 +1172,7 @@ static void smc_hardware_send_packet(struct net_device * dev)
 
     smc->saved_skb = NULL;
     dev_kfree_skb_irq(skb);
-    dev->trans_start = jiffies;
+    netif_trans_update(dev);
     netif_start_queue(dev);
 }
 
@@ -1187,7 +1187,7 @@ static void smc_tx_timeout(struct net_device *dev)
 		  inw(ioaddr)&0xff, inw(ioaddr + 2));
     dev->stats.tx_errors++;
     smc_reset(dev);
-    dev->trans_start = jiffies; /* prevent tx timeout */
+    netif_trans_update(dev); /* prevent tx timeout */
     smc->saved_skb = NULL;
     netif_wake_queue(dev);
 }
diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index c5ed27c..18ac52d 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -619,7 +619,7 @@ static void smc_hardware_send_pkt(unsigned long data)
 	SMC_SET_MMU_CMD(lp, MC_ENQUEUE);
 	smc_special_unlock(&lp->lock, flags);
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	dev->stats.tx_packets++;
 	dev->stats.tx_bytes += len;
 
@@ -1364,7 +1364,7 @@ static void smc_timeout(struct net_device *dev)
 		schedule_work(&lp->phy_configure);
 
 	/* We can accept TX packets again */
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 }
 
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index 9cc4564..a2371aa 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -6431,7 +6431,7 @@ static int niu_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 
 static void niu_netif_stop(struct niu *np)
 {
-	np->dev->trans_start = jiffies;	/* prevent tx timeout */
+	netif_trans_update(np->dev);	/* prevent tx timeout */
 
 	niu_disable_napi(np);
 
diff --git a/drivers/net/ethernet/sun/sungem.c b/drivers/net/ethernet/sun/sungem.c
index 2437227..d6ad0fb 100644
--- a/drivers/net/ethernet/sun/sungem.c
+++ b/drivers/net/ethernet/sun/sungem.c
@@ -226,7 +226,7 @@ static void gem_put_cell(struct gem *gp)
 
 static inline void gem_netif_stop(struct gem *gp)
 {
-	gp->dev->trans_start = jiffies;	/* prevent tx timeout */
+	netif_trans_update(gp->dev);	/* prevent tx timeout */
 	napi_disable(&gp->napi);
 	netif_tx_disable(gp->dev);
 }
diff --git a/drivers/net/ethernet/synopsys/dwc_eth_qos.c b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
index af11ed1..158213c 100644
--- a/drivers/net/ethernet/synopsys/dwc_eth_qos.c
+++ b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
@@ -949,7 +949,7 @@ static void dwceqos_adjust_link(struct net_device *ndev)
 
 	if (status_change) {
 		if (phydev->link) {
-			lp->ndev->trans_start = jiffies;
+			netif_trans_update(lp->ndev);
 			dwceqos_link_up(lp);
 		} else {
 			dwceqos_link_down(lp);
@@ -2203,7 +2203,7 @@ static int dwceqos_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	netdev_sent_queue(ndev, skb->len);
 	spin_unlock_bh(&lp->tx_lock);
 
-	ndev->trans_start = jiffies;
+	netif_trans_update(ndev);
 	return 0;
 
 tx_error:
diff --git a/drivers/net/ethernet/tehuti/tehuti.c b/drivers/net/ethernet/tehuti/tehuti.c
index 2524a69..7452b5f 100644
--- a/drivers/net/ethernet/tehuti/tehuti.c
+++ b/drivers/net/ethernet/tehuti/tehuti.c
@@ -1701,7 +1701,7 @@ static netdev_tx_t bdx_tx_transmit(struct sk_buff *skb,
 
 #endif
 #ifdef BDX_LLTX
-	ndev->trans_start = jiffies; /* NETIF_F_LLTX driver :( */
+	netif_trans_update(ndev); /* NETIF_F_LLTX driver :( */
 #endif
 	ndev->stats.tx_packets++;
 	ndev->stats.tx_bytes += skb->len;
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 0fa75a8..3d4662d 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1381,7 +1381,7 @@ static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb,
 	struct cpsw_priv *priv = netdev_priv(ndev);
 	int ret;
 
-	ndev->trans_start = jiffies;
+	netif_trans_update(ndev);
 
 	if (skb_padto(skb, CPSW_MIN_PACKET_SIZE)) {
 		cpsw_err(priv, tx_err, "packet pad failed\n");
diff --git a/drivers/net/ethernet/ti/netcp_core.c b/drivers/net/ethernet/ti/netcp_core.c
index 1d0942c..3251666 100644
--- a/drivers/net/ethernet/ti/netcp_core.c
+++ b/drivers/net/ethernet/ti/netcp_core.c
@@ -1272,7 +1272,7 @@ static int netcp_ndo_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	if (ret)
 		goto drop;
 
-	ndev->trans_start = jiffies;
+	netif_trans_update(ndev);
 
 	/* Check Tx pool count & stop subqueue if needed */
 	desc_count = knav_pool_count(netcp->tx_pool);
@@ -1788,7 +1788,7 @@ static void netcp_ndo_tx_timeout(struct net_device *ndev)
 
 	dev_err(netcp->ndev_dev, "transmit timed out tx descs(%d)\n", descs);
 	netcp_process_tx_compl_packets(netcp, netcp->tx_pool_size);
-	ndev->trans_start = jiffies;
+	netif_trans_update(ndev);
 	netif_tx_wake_all_queues(ndev);
 }
 
diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
index a274cd4..5617033 100644
--- a/drivers/net/ethernet/ti/tlan.c
+++ b/drivers/net/ethernet/ti/tlan.c
@@ -1007,7 +1007,7 @@ static void tlan_tx_timeout(struct net_device *dev)
 	tlan_reset_lists(dev);
 	tlan_read_and_clear_stats(dev, TLAN_IGNORE);
 	tlan_reset_adapter(dev);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 
 }
diff --git a/drivers/net/ethernet/tile/tilepro.c b/drivers/net/ethernet/tile/tilepro.c
index 298e059..0bb98bc 100644
--- a/drivers/net/ethernet/tile/tilepro.c
+++ b/drivers/net/ethernet/tile/tilepro.c
@@ -1883,7 +1883,7 @@ static int tile_net_tx(struct sk_buff *skb, struct net_device *dev)
 
 
 	/* Save the timestamp. */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 
 #ifdef TILE_NET_PARANOIA
diff --git a/drivers/net/ethernet/toshiba/spider_net.c b/drivers/net/ethernet/toshiba/spider_net.c
index 6761027..36a6e8b 100644
--- a/drivers/net/ethernet/toshiba/spider_net.c
+++ b/drivers/net/ethernet/toshiba/spider_net.c
@@ -705,7 +705,7 @@ spider_net_prepare_tx_descr(struct spider_net_card *card,
 	wmb();
 	descr->prev->hwdescr->next_descr_addr = descr->bus_addr;
 
-	card->netdev->trans_start = jiffies; /* set netdev watchdog timer */
+	netif_trans_update(card->netdev); /* set netdev watchdog timer */
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index 2b7550c..9d14731 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -1758,7 +1758,7 @@ static void rhine_reset_task(struct work_struct *work)
 
 	spin_unlock_bh(&rp->lock);
 
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	dev->stats.tx_errors++;
 	netif_wake_queue(dev);
 
diff --git a/drivers/net/ethernet/wiznet/w5100.c b/drivers/net/ethernet/wiznet/w5100.c
index 8ed0c77..ec1889c 100644
--- a/drivers/net/ethernet/wiznet/w5100.c
+++ b/drivers/net/ethernet/wiznet/w5100.c
@@ -782,7 +782,7 @@ static void w5100_restart(struct net_device *ndev)
 	w5100_hw_reset(priv);
 	w5100_hw_start(priv);
 	ndev->stats.tx_errors++;
-	ndev->trans_start = jiffies;
+	netif_trans_update(ndev);
 	netif_wake_queue(ndev);
 }
 
diff --git a/drivers/net/ethernet/wiznet/w5300.c b/drivers/net/ethernet/wiznet/w5300.c
index 8da7b93..0b37ce9 100644
--- a/drivers/net/ethernet/wiznet/w5300.c
+++ b/drivers/net/ethernet/wiznet/w5300.c
@@ -362,7 +362,7 @@ static void w5300_tx_timeout(struct net_device *ndev)
 	w5300_hw_reset(priv);
 	w5300_hw_start(priv);
 	ndev->stats.tx_errors++;
-	ndev->trans_start = jiffies;
+	netif_trans_update(ndev);
 	netif_wake_queue(ndev);
 }
 
diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
index 5a1068d..7397087 100644
--- a/drivers/net/ethernet/xilinx/ll_temac_main.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c
@@ -584,7 +584,7 @@ static void temac_device_reset(struct net_device *ndev)
 		dev_err(&ndev->dev, "Error setting TEMAC options\n");
 
 	/* Init Driver variable */
-	ndev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(ndev); /* prevent tx timeout */
 }
 
 static void temac_adjust_link(struct net_device *ndev)
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 4684644..8c7f5be 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -508,7 +508,7 @@ static void axienet_device_reset(struct net_device *ndev)
 	axienet_set_multicast_list(ndev);
 	axienet_setoptions(ndev, lp->options);
 
-	ndev->trans_start = jiffies;
+	netif_trans_update(ndev);
 }
 
 /**
diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index e324b30..3cee84a 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -531,7 +531,7 @@ static void xemaclite_tx_timeout(struct net_device *dev)
 	}
 
 	/* To exclude tx timeout */
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 
 	/* We're all ready to go. Start the queue */
 	netif_wake_queue(dev);
@@ -563,7 +563,7 @@ static void xemaclite_tx_handler(struct net_device *dev)
 			dev->stats.tx_bytes += lp->deferred_skb->len;
 			dev_kfree_skb_irq(lp->deferred_skb);
 			lp->deferred_skb = NULL;
-			dev->trans_start = jiffies; /* prevent tx timeout */
+			netif_trans_update(dev); /* prevent tx timeout */
 			netif_wake_queue(dev);
 		}
 	}
diff --git a/drivers/net/ethernet/xircom/xirc2ps_cs.c b/drivers/net/ethernet/xircom/xirc2ps_cs.c
index d56f869..7b44968 100644
--- a/drivers/net/ethernet/xircom/xirc2ps_cs.c
+++ b/drivers/net/ethernet/xircom/xirc2ps_cs.c
@@ -1199,7 +1199,7 @@ xirc2ps_tx_timeout_task(struct work_struct *work)
 	struct net_device *dev = local->dev;
     /* reset the card */
     do_reset(dev,1);
-    dev->trans_start = jiffies; /* prevent tx timeout */
+    netif_trans_update(dev); /* prevent tx timeout */
     netif_wake_queue(dev);
 }
 
diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c
index 7ad3d04..f4e6926 100644
--- a/drivers/net/fjes/fjes_main.c
+++ b/drivers/net/fjes/fjes_main.c
@@ -718,7 +718,7 @@ fjes_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 
 					ret = NETDEV_TX_OK;
 				} else {
-					netdev->trans_start = jiffies;
+					netif_trans_update(netdev);
 					netif_tx_stop_queue(cur_queue);
 
 					if (!work_pending(&adapter->tx_stall_task))
diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index c685937..1dfe230 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -519,7 +519,7 @@ static void ax_encaps(struct net_device *dev, unsigned char *icp, int len)
 	dev->stats.tx_packets++;
 	dev->stats.tx_bytes += actual;
 
-	ax->dev->trans_start = jiffies;
+	netif_trans_update(ax->dev);
 	ax->xleft = count - actual;
 	ax->xhead = ax->xbuff + actual;
 }
diff --git a/drivers/net/hamradio/scc.c b/drivers/net/hamradio/scc.c
index ce88df3..b808316 100644
--- a/drivers/net/hamradio/scc.c
+++ b/drivers/net/hamradio/scc.c
@@ -1669,7 +1669,7 @@ static netdev_tx_t scc_net_tx(struct sk_buff *skb, struct net_device *dev)
 		dev_kfree_skb(skb_del);
 	}
 	skb_queue_tail(&scc->tx_queue, skb);
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	
 
 	/*
diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 1a4729c..aaff07c 100644
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -601,7 +601,7 @@ static netdev_tx_t yam_send_packet(struct sk_buff *skb,
 		return ax25_ip_xmit(skb);
 
 	skb_queue_tail(&yp->send_queue, skb);
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	return NETDEV_TX_OK;
 }
 
diff --git a/drivers/net/irda/ali-ircc.c b/drivers/net/irda/ali-ircc.c
index 64bb44d..c285eaf 100644
--- a/drivers/net/irda/ali-ircc.c
+++ b/drivers/net/irda/ali-ircc.c
@@ -1427,7 +1427,7 @@ static netdev_tx_t ali_ircc_fir_hard_xmit(struct sk_buff *skb,
 		/* Check for empty frame */
 		if (!skb->len) {
 			ali_ircc_change_speed(self, speed); 
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 			spin_unlock_irqrestore(&self->lock, flags);
 			dev_kfree_skb(skb);
 			return NETDEV_TX_OK;
@@ -1533,7 +1533,7 @@ static netdev_tx_t ali_ircc_fir_hard_xmit(struct sk_buff *skb,
 	/* Restore bank register */
 	switch_bank(iobase, BANK0);
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	spin_unlock_irqrestore(&self->lock, flags);
 	dev_kfree_skb(skb);
 
@@ -1946,7 +1946,7 @@ static netdev_tx_t ali_ircc_sir_hard_xmit(struct sk_buff *skb,
 		/* Check for empty frame */
 		if (!skb->len) {
 			ali_ircc_change_speed(self, speed); 
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 			spin_unlock_irqrestore(&self->lock, flags);
 			dev_kfree_skb(skb);
 			return NETDEV_TX_OK;
@@ -1966,7 +1966,7 @@ static netdev_tx_t ali_ircc_sir_hard_xmit(struct sk_buff *skb,
 	/* Turn on transmit finished interrupt. Will fire immediately!  */
 	outb(UART_IER_THRI, iobase+UART_IER); 
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	spin_unlock_irqrestore(&self->lock, flags);
 
 	dev_kfree_skb(skb);
diff --git a/drivers/net/irda/bfin_sir.c b/drivers/net/irda/bfin_sir.c
index 303c4bd..be5bb0b 100644
--- a/drivers/net/irda/bfin_sir.c
+++ b/drivers/net/irda/bfin_sir.c
@@ -531,7 +531,7 @@ static void bfin_sir_send_work(struct work_struct *work)
 	bfin_sir_dma_tx_chars(dev);
 #endif
 	bfin_sir_enable_tx(port);
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 }
 
 static int bfin_sir_hard_xmit(struct sk_buff *skb, struct net_device *dev)
diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
index 25f2196..a198946 100644
--- a/drivers/net/irda/irda-usb.c
+++ b/drivers/net/irda/irda-usb.c
@@ -429,7 +429,7 @@ static netdev_tx_t irda_usb_hard_xmit(struct sk_buff *skb,
 			 * do an extra memcpy and increment packet counters...
 			 * Jean II */
 			irda_usb_change_speed_xbofs(self);
-			netdev->trans_start = jiffies;
+			netif_trans_update(netdev);
 			/* Will netif_wake_queue() in callback */
 			goto drop;
 		}
@@ -526,7 +526,7 @@ static netdev_tx_t irda_usb_hard_xmit(struct sk_buff *skb,
 		netdev->stats.tx_packets++;
                 netdev->stats.tx_bytes += skb->len;
 		
-		netdev->trans_start = jiffies;
+		netif_trans_update(netdev);
 	}
 	spin_unlock_irqrestore(&self->lock, flags);
 	
diff --git a/drivers/net/irda/nsc-ircc.c b/drivers/net/irda/nsc-ircc.c
index dc0dbd8..9ef13d8 100644
--- a/drivers/net/irda/nsc-ircc.c
+++ b/drivers/net/irda/nsc-ircc.c
@@ -1399,7 +1399,7 @@ static netdev_tx_t nsc_ircc_hard_xmit_sir(struct sk_buff *skb,
 				 * to make sure packets gets through the
 				 * proper xmit handler - Jean II */
 			}
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 			spin_unlock_irqrestore(&self->lock, flags);
 			dev_kfree_skb(skb);
 			return NETDEV_TX_OK;
@@ -1424,7 +1424,7 @@ static netdev_tx_t nsc_ircc_hard_xmit_sir(struct sk_buff *skb,
 	/* Restore bank register */
 	outb(bank, iobase+BSR);
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	spin_unlock_irqrestore(&self->lock, flags);
 
 	dev_kfree_skb(skb);
@@ -1470,7 +1470,7 @@ static netdev_tx_t nsc_ircc_hard_xmit_fir(struct sk_buff *skb,
 				 * the speed change has been done.
 				 * Jean II */
 			}
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 			spin_unlock_irqrestore(&self->lock, flags);
 			dev_kfree_skb(skb);
 			return NETDEV_TX_OK;
@@ -1553,7 +1553,7 @@ static netdev_tx_t nsc_ircc_hard_xmit_fir(struct sk_buff *skb,
 	/* Restore bank register */
 	outb(bank, iobase+BSR);
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	spin_unlock_irqrestore(&self->lock, flags);
 	dev_kfree_skb(skb);
 
diff --git a/drivers/net/irda/smsc-ircc2.c b/drivers/net/irda/smsc-ircc2.c
index b455ffe..dcf92ba 100644
--- a/drivers/net/irda/smsc-ircc2.c
+++ b/drivers/net/irda/smsc-ircc2.c
@@ -862,7 +862,7 @@ static void smsc_ircc_timeout(struct net_device *dev)
 	spin_lock_irqsave(&self->lock, flags);
 	smsc_ircc_sir_start(self);
 	smsc_ircc_change_speed(self, self->io.speed);
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 	netif_wake_queue(dev);
 	spin_unlock_irqrestore(&self->lock, flags);
 }
diff --git a/drivers/net/irda/stir4200.c b/drivers/net/irda/stir4200.c
index 83cc48a..42da094 100644
--- a/drivers/net/irda/stir4200.c
+++ b/drivers/net/irda/stir4200.c
@@ -718,7 +718,7 @@ static void stir_send(struct stir_cb *stir, struct sk_buff *skb)
 
 	stir->netdev->stats.tx_packets++;
 	stir->netdev->stats.tx_bytes += skb->len;
-	stir->netdev->trans_start = jiffies;
+	netif_trans_update(stir->netdev);
 	pr_debug("send %d (%d)\n", skb->len, wraplen);
 
 	if (usb_bulk_msg(stir->usbdev, usb_sndbulkpipe(stir->usbdev, 1),
diff --git a/drivers/net/irda/via-ircc.c b/drivers/net/irda/via-ircc.c
index 6960d4c..ca4442a 100644
--- a/drivers/net/irda/via-ircc.c
+++ b/drivers/net/irda/via-ircc.c
@@ -774,7 +774,7 @@ static netdev_tx_t via_ircc_hard_xmit_sir(struct sk_buff *skb,
 		/* Check for empty frame */
 		if (!skb->len) {
 			via_ircc_change_speed(self, speed);
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 			dev_kfree_skb(skb);
 			return NETDEV_TX_OK;
 		} else
@@ -821,7 +821,7 @@ static netdev_tx_t via_ircc_hard_xmit_sir(struct sk_buff *skb,
 	RXStart(iobase, OFF);
 	TXStart(iobase, ON);
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	spin_unlock_irqrestore(&self->lock, flags);
 	dev_kfree_skb(skb);
 	return NETDEV_TX_OK;
@@ -849,7 +849,7 @@ static netdev_tx_t via_ircc_hard_xmit_fir(struct sk_buff *skb,
 	if ((speed != self->io.speed) && (speed != -1)) {
 		if (!skb->len) {
 			via_ircc_change_speed(self, speed);
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 			dev_kfree_skb(skb);
 			return NETDEV_TX_OK;
 		} else
@@ -869,7 +869,7 @@ static netdev_tx_t via_ircc_hard_xmit_fir(struct sk_buff *skb,
 	via_ircc_dma_xmit(self, iobase);
 //F01   }
 //F01   if (self->tx_fifo.free < (MAX_TX_WINDOW -1 )) netif_wake_queue(self->netdev);
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	dev_kfree_skb(skb);
 	spin_unlock_irqrestore(&self->lock, flags);
 	return NETDEV_TX_OK;
diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c
index a17d86a..9ed6d1c 100644
--- a/drivers/net/slip/slip.c
+++ b/drivers/net/slip/slip.c
@@ -407,7 +407,7 @@ static void sl_encaps(struct slip *sl, unsigned char *icp, int len)
 	set_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags);
 	actual = sl->tty->ops->write(sl->tty, sl->xbuff, count);
 #ifdef SL_CHECK_TRANSMIT
-	sl->dev->trans_start = jiffies;
+	netif_trans_update(sl->dev);
 #endif
 	sl->xleft = count - actual;
 	sl->xhead = sl->xbuff + actual;
diff --git a/drivers/net/usb/catc.c b/drivers/net/usb/catc.c
index 4e2b26a..d9ca05d 100644
--- a/drivers/net/usb/catc.c
+++ b/drivers/net/usb/catc.c
@@ -376,7 +376,7 @@ static int catc_tx_run(struct catc *catc)
 	catc->tx_idx = !catc->tx_idx;
 	catc->tx_ptr = 0;
 
-	catc->netdev->trans_start = jiffies;
+	netif_trans_update(catc->netdev);
 	return status;
 }
 
@@ -389,7 +389,7 @@ static void catc_tx_done(struct urb *urb)
 	if (status == -ECONNRESET) {
 		dev_dbg(&urb->dev->dev, "Tx Reset.\n");
 		urb->status = 0;
-		catc->netdev->trans_start = jiffies;
+		netif_trans_update(catc->netdev);
 		catc->netdev->stats.tx_errors++;
 		clear_bit(TX_RUNNING, &catc->flags);
 		netif_wake_queue(catc->netdev);
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index f64b25c..770212b 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -938,7 +938,7 @@ static void kaweth_tx_timeout(struct net_device *net)
 
 	dev_warn(&net->dev, "%s: Tx timed out. Resetting.\n", net->name);
 	kaweth->stats.tx_errors++;
-	net->trans_start = jiffies;
+	netif_trans_update(net);
 
 	usb_unlink_urb(kaweth->tx_urb);
 }
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index f20890e..0ea883a 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -3013,7 +3013,7 @@ gso_skb:
 	ret = usb_submit_urb(urb, GFP_ATOMIC);
 	switch (ret) {
 	case 0:
-		dev->net->trans_start = jiffies;
+		netif_trans_update(dev->net);
 		lan78xx_queue_skb(&dev->txq, skb, tx_start);
 		if (skb_queue_len(&dev->txq) >= dev->tx_qlen)
 			netif_stop_queue(dev->net);
@@ -3697,7 +3697,7 @@ int lan78xx_resume(struct usb_interface *intf)
 				usb_free_urb(res);
 				usb_autopm_put_interface_async(dev->intf);
 			} else {
-				dev->net->trans_start = jiffies;
+				netif_trans_update(dev->net);
 				lan78xx_queue_skb(&dev->txq, skb, tx_start);
 			}
 		}
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index f840802..80d05db 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -615,7 +615,7 @@ static void write_bulk_callback(struct urb *urb)
 		break;
 	}
 
-	net->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(net); /* prevent tx timeout */
 	netif_wake_queue(net);
 }
 
diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c
index d37b7dc..7c72bfa 100644
--- a/drivers/net/usb/rtl8150.c
+++ b/drivers/net/usb/rtl8150.c
@@ -451,7 +451,7 @@ static void write_bulk_callback(struct urb *urb)
 	if (status)
 		dev_info(&urb->dev->dev, "%s: Tx status %d\n",
 			 dev->netdev->name, status);
-	dev->netdev->trans_start = jiffies;
+	netif_trans_update(dev->netdev);
 	netif_wake_queue(dev->netdev);
 }
 
@@ -694,7 +694,7 @@ static netdev_tx_t rtl8150_start_xmit(struct sk_buff *skb,
 	} else {
 		netdev->stats.tx_packets++;
 		netdev->stats.tx_bytes += skb->len;
-		netdev->trans_start = jiffies;
+		netif_trans_update(netdev);
 	}
 
 	return NETDEV_TX_OK;
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 1079812..f3b1f5a 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1415,7 +1415,7 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb,
 			  "tx: submit urb err %d\n", retval);
 		break;
 	case 0:
-		net->trans_start = jiffies;
+		netif_trans_update(net);
 		__usbnet_queue_skb(&dev->txq, skb, tx_start);
 		if (dev->txq.qlen >= TX_QLEN (dev))
 			netif_stop_queue (net);
@@ -1844,7 +1844,7 @@ int usbnet_resume (struct usb_interface *intf)
 				usb_free_urb(res);
 				usb_autopm_put_interface_async(dev->intf);
 			} else {
-				dev->net->trans_start = jiffies;
+				netif_trans_update(dev->net);
 				__skb_queue_tail(&dev->txq, skb);
 			}
 		}
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index 848ea6a..b87fe0a 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -739,7 +739,7 @@ static char *cosa_net_setup_rx(struct channel_data *chan, int size)
 		chan->netdev->stats.rx_dropped++;
 		return NULL;
 	}
-	chan->netdev->trans_start = jiffies;
+	netif_trans_update(chan->netdev);
 	return skb_put(chan->rx_skb, size);
 }
 
diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c
index 69b994f..3c9cbf9 100644
--- a/drivers/net/wan/farsync.c
+++ b/drivers/net/wan/farsync.c
@@ -831,7 +831,7 @@ fst_tx_dma_complete(struct fst_card_info *card, struct fst_port_info *port,
 		DMA_OWN | TX_STP | TX_ENP);
 	dev->stats.tx_packets++;
 	dev->stats.tx_bytes += len;
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 }
 
 /*
@@ -1389,7 +1389,7 @@ do_bottom_half_tx(struct fst_card_info *card)
 						DMA_OWN | TX_STP | TX_ENP);
 					dev->stats.tx_packets++;
 					dev->stats.tx_bytes += skb->len;
-					dev->trans_start = jiffies;
+					netif_trans_update(dev);
 				} else {
 					/* Or do it through dma */
 					memcpy(card->tx_dma_handle_host,
@@ -2258,7 +2258,7 @@ fst_tx_timeout(struct net_device *dev)
 	    card->card_no, port->index);
 	fst_issue_cmd(port, ABORTTX);
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	netif_wake_queue(dev);
 	port->start = 0;
 }
diff --git a/drivers/net/wan/lmc/lmc_main.c b/drivers/net/wan/lmc/lmc_main.c
index bb33b24..299140c 100644
--- a/drivers/net/wan/lmc/lmc_main.c
+++ b/drivers/net/wan/lmc/lmc_main.c
@@ -2105,7 +2105,7 @@ static void lmc_driver_timeout(struct net_device *dev)
     sc->lmc_device->stats.tx_errors++;
     sc->extra_stats.tx_ProcTimeout++; /* -baz */
 
-    dev->trans_start = jiffies; /* prevent tx timeout */
+    netif_trans_update(dev); /* prevent tx timeout */
 
 bug_out:
 
diff --git a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c
index 8fef8d8..d98c7e5 100644
--- a/drivers/net/wan/sbni.c
+++ b/drivers/net/wan/sbni.c
@@ -860,9 +860,9 @@ prepare_to_send( struct sk_buff  *skb,  struct net_device  *dev )
 
 	outb( inb( dev->base_addr + CSR0 ) | TR_REQ,  dev->base_addr + CSR0 );
 #ifdef CONFIG_SBNI_MULTILINE
-	nl->master->trans_start = jiffies;
+	netif_trans_update(nl->master);
 #else
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 #endif
 }
 
@@ -889,10 +889,10 @@ drop_xmit_queue( struct net_device  *dev )
 	nl->state &= ~(FL_WAIT_ACK | FL_NEED_RESEND);
 #ifdef CONFIG_SBNI_MULTILINE
 	netif_start_queue( nl->master );
-	nl->master->trans_start = jiffies;
+	netif_trans_update(nl->master);
 #else
 	netif_start_queue( dev );
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 #endif
 }
 
diff --git a/drivers/net/wimax/i2400m/netdev.c b/drivers/net/wimax/i2400m/netdev.c
index a9970f1..bb74f4b 100644
--- a/drivers/net/wimax/i2400m/netdev.c
+++ b/drivers/net/wimax/i2400m/netdev.c
@@ -334,7 +334,7 @@ int i2400m_net_tx(struct i2400m *i2400m, struct net_device *net_dev,
 	d_fnstart(3, dev, "(i2400m %p net_dev %p skb %p)\n",
 		  i2400m, net_dev, skb);
 	/* FIXME: check eth hdr, only IPv4 is routed by the device as of now */
-	net_dev->trans_start = jiffies;
+	netif_trans_update(net_dev);
 	i2400m_tx_prep_header(skb);
 	d_printf(3, dev, "NETTX: skb %p sending %d bytes to radio\n",
 		 skb, skb->len);
diff --git a/drivers/net/wireless/cisco/airo.c b/drivers/net/wireless/cisco/airo.c
index 4bd9e2b..55456f7 100644
--- a/drivers/net/wireless/cisco/airo.c
+++ b/drivers/net/wireless/cisco/airo.c
@@ -2026,7 +2026,7 @@ static int mpi_send_packet (struct net_device *dev)
 	} else {
 		*payloadLen = cpu_to_le16(len - sizeof(etherHead));
 
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 
 		/* copy data into airo dma buffer */
 		memcpy(sendbuf, buffer, len);
@@ -2107,7 +2107,7 @@ static void airo_end_xmit(struct net_device *dev) {
 
 	i = 0;
 	if ( status == SUCCESS ) {
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 		for (; i < MAX_FIDS / 2 && (priv->fids[i] & 0xffff0000); i++);
 	} else {
 		priv->fids[fid] &= 0xffff;
@@ -2174,7 +2174,7 @@ static void airo_end_xmit11(struct net_device *dev) {
 
 	i = MAX_FIDS / 2;
 	if ( status == SUCCESS ) {
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 		for (; i < MAX_FIDS && (priv->fids[i] & 0xffff0000); i++);
 	} else {
 		priv->fids[fid] &= 0xffff;
diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.c b/drivers/net/wireless/intel/ipw2x00/ipw2100.c
index e1e42ed..bfa542c 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.c
@@ -2954,7 +2954,7 @@ static int __ipw2100_tx_process(struct ipw2100_priv *priv)
 
 		/* A packet was processed by the hardware, so update the
 		 * watchdog */
-		priv->net_dev->trans_start = jiffies;
+		netif_trans_update(priv->net_dev);
 
 		break;
 
diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.c b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
index dac13cf..5adb7ce 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
@@ -7707,7 +7707,7 @@ static void ipw_handle_data_packet(struct ipw_priv *priv,
 	struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
 
 	/* We received data from the HW, so stop the watchdog */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	/* We only process data packets if the
 	 * interface is open */
@@ -7770,7 +7770,7 @@ static void ipw_handle_data_packet_monitor(struct ipw_priv *priv,
 	unsigned short len = le16_to_cpu(pkt->u.frame.length);
 
 	/* We received data from the HW, so stop the watchdog */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	/* We only process data packets if the
 	 * interface is open */
@@ -7952,7 +7952,7 @@ static void ipw_handle_promiscuous_rx(struct ipw_priv *priv,
 		return;
 
 	/* We received data from the HW, so stop the watchdog */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	if (unlikely((len + IPW_RX_FRAME_SIZE) > skb_tailroom(rxb->skb))) {
 		dev->stats.rx_errors++;
diff --git a/drivers/net/wireless/intersil/hostap/hostap_hw.c b/drivers/net/wireless/intersil/hostap/hostap_hw.c
index 515aa3f..a8a9bd8 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_hw.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_hw.c
@@ -1794,7 +1794,7 @@ static int prism2_transmit(struct net_device *dev, int idx)
 		netif_wake_queue(dev);
 		return -1;
 	}
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	/* Since we did not wait for command completion, the card continues
 	 * to process on the background and we will finish handling when
diff --git a/drivers/net/wireless/intersil/orinoco/main.c b/drivers/net/wireless/intersil/orinoco/main.c
index 7b5c554..7afe200 100644
--- a/drivers/net/wireless/intersil/orinoco/main.c
+++ b/drivers/net/wireless/intersil/orinoco/main.c
@@ -1794,7 +1794,7 @@ void orinoco_reset(struct work_struct *work)
 			printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n",
 			       dev->name, err);
 		} else
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 	}
 
 	orinoco_unlock_irq(priv);
diff --git a/drivers/net/wireless/intersil/orinoco/orinoco_usb.c b/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
index f2cd513..56f109b 100644
--- a/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
+++ b/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
@@ -1275,7 +1275,7 @@ static netdev_tx_t ezusb_xmit(struct sk_buff *skb, struct net_device *dev)
 		goto busy;
 	}
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	stats->tx_bytes += skb->len;
 	goto ok;
 
diff --git a/drivers/net/wireless/marvell/mwifiex/init.c b/drivers/net/wireless/marvell/mwifiex/init.c
index 517653b..78c532f 100644
--- a/drivers/net/wireless/marvell/mwifiex/init.c
+++ b/drivers/net/wireless/marvell/mwifiex/init.c
@@ -317,7 +317,7 @@ void mwifiex_set_trans_start(struct net_device *dev)
 	for (i = 0; i < dev->num_tx_queues; i++)
 		netdev_get_tx_queue(dev, i)->trans_start = jiffies;
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 }
 
 /*
diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c
index 99de07d..13fd734 100644
--- a/drivers/net/wireless/wl3501_cs.c
+++ b/drivers/net/wireless/wl3501_cs.c
@@ -1287,7 +1287,7 @@ static void wl3501_tx_timeout(struct net_device *dev)
 		printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
 		       dev->name, rc);
 	else {
-		dev->trans_start = jiffies; /* prevent tx timeout */
+		netif_trans_update(dev); /* prevent tx timeout */
 		netif_wake_queue(dev);
 	}
 }
diff --git a/drivers/net/wireless/zydas/zd1201.c b/drivers/net/wireless/zydas/zd1201.c
index 6f5c793..dea049b 100644
--- a/drivers/net/wireless/zydas/zd1201.c
+++ b/drivers/net/wireless/zydas/zd1201.c
@@ -845,7 +845,7 @@ static void zd1201_tx_timeout(struct net_device *dev)
 	usb_unlink_urb(zd->tx_urb);
 	dev->stats.tx_errors++;
 	/* Restart the timeout to quiet the watchdog: */
-	dev->trans_start = jiffies; /* prevent tx timeout */
+	netif_trans_update(dev); /* prevent tx timeout */
 }
 
 static int zd1201_set_mac_address(struct net_device *dev, void *p)
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index c3e2252..ad17fc5 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -642,7 +642,7 @@ static void ctcmpc_send_sweep_req(struct channel *rch)
 
 	kfree(header);
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	skb_queue_tail(&ch->sweep_queue, sweep_skb);
 
 	fsm_addtimer(&ch->sweep_timer, 100, CTC_EVENT_RSWEEP_TIMER, ch);
@@ -911,7 +911,7 @@ static int ctcm_tx(struct sk_buff *skb, struct net_device *dev)
 	if (ctcm_test_and_set_busy(dev))
 		return NETDEV_TX_BUSY;
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	if (ctcm_transmit_skb(priv->channel[CTCM_WRITE], skb) != 0)
 		return NETDEV_TX_BUSY;
 	return NETDEV_TX_OK;
@@ -994,7 +994,7 @@ static int ctcmpc_tx(struct sk_buff *skb, struct net_device *dev)
 					goto done;
 	}
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	if (ctcmpc_transmit_skb(priv->channel[CTCM_WRITE], skb) != 0) {
 		CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR,
 			"%s(%s): device error - dropped",
diff --git a/drivers/s390/net/ctcm_mpc.c b/drivers/s390/net/ctcm_mpc.c
index edf16bf..c103fc7 100644
--- a/drivers/s390/net/ctcm_mpc.c
+++ b/drivers/s390/net/ctcm_mpc.c
@@ -671,7 +671,7 @@ static void ctcmpc_send_sweep_resp(struct channel *rch)
 
 	kfree(header);
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	skb_queue_tail(&ch->sweep_queue, sweep_skb);
 
 	fsm_addtimer(&ch->sweep_timer, 100, CTC_EVENT_RSWEEP_TIMER, ch);
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index 0ba3a2f..b0e8ffd 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -1407,7 +1407,7 @@ static int netiucv_tx(struct sk_buff *skb, struct net_device *dev)
 		IUCV_DBF_TEXT(data, 2, "EBUSY from netiucv_tx\n");
 		return NETDEV_TX_BUSY;
 	}
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	rc = netiucv_transmit_skb(privptr->conn, skb);
 	netiucv_clear_busy(dev);
 	return rc ? NETDEV_TX_BUSY : NETDEV_TX_OK;
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index 9b7cc7d..13a5ddc 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -1792,7 +1792,7 @@ static short _rtl92e_tx(struct net_device *dev, struct sk_buff *skb)
 	__skb_queue_tail(&ring->queue, skb);
 	pdesc->OWN = 1;
 	spin_unlock_irqrestore(&priv->irq_th_lock, flags);
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	rtl92e_writew(dev, TPPoll, 0x01 << tcb_desc->queue_index);
 	return 0;
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
index de71450..d705595 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
@@ -249,7 +249,7 @@ inline void softmac_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *ieee
 				ieee->seq_ctrl[0]++;
 
 			/* avoid watchdog triggers */
-			ieee->dev->trans_start = jiffies;
+			netif_trans_update(ieee->dev);
 			ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
 			//dev_kfree_skb_any(skb);//edit by thomas
 		}
@@ -302,7 +302,7 @@ inline void softmac_ps_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *i
 			ieee->seq_ctrl[0]++;
 
 		/* avoid watchdog triggers */
-		ieee->dev->trans_start = jiffies;
+		netif_trans_update(ieee->dev);
 		ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
 
 	}else{
@@ -2205,7 +2205,7 @@ static void ieee80211_resume_tx(struct ieee80211_device *ieee)
 				ieee->dev, ieee->rate);
 				//(i+1)<ieee->tx_pending.txb->nr_frags);
 			ieee->stats.tx_packets++;
-			ieee->dev->trans_start = jiffies;
+			netif_trans_update(ieee->dev);
 		}
 	}
 
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 849a95e..4af0140 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -1108,7 +1108,7 @@ static void rtl8192_tx_isr(struct urb *tx_urb)
 
 	if (tcb_desc->queue_index != TXCMD_QUEUE) {
 		if (tx_urb->status == 0) {
-			dev->trans_start = jiffies;
+			netif_trans_update(dev);
 			priv->stats.txoktotal++;
 			priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
 			priv->stats.txbytesunicast +=
@@ -1715,7 +1715,7 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
 				return -1;
 			}
 		}
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 		atomic_inc(&priv->tx_pending[tcb_desc->queue_index]);
 		return 0;
 	}
diff --git a/drivers/staging/wlan-ng/p80211netdev.c b/drivers/staging/wlan-ng/p80211netdev.c
index 88255ce..1f9dfba 100644
--- a/drivers/staging/wlan-ng/p80211netdev.c
+++ b/drivers/staging/wlan-ng/p80211netdev.c
@@ -393,7 +393,7 @@ static int p80211knetdev_hard_start_xmit(struct sk_buff *skb,
 		goto failed;
 	}
 
-	netdev->trans_start = jiffies;
+	netif_trans_update(netdev);
 
 	netdev->stats.tx_packets++;
 	/* count only the packet payload */
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index c016207..0c27a00 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -2662,7 +2662,7 @@ static int gsm_mux_net_start_xmit(struct sk_buff *skb,
 	STATS(net).tx_bytes += skb->len;
 	gsm_dlci_data_kick(dlci);
 	/* And tell the kernel when the last transmit started. */
-	net->trans_start = jiffies;
+	netif_trans_update(net);
 	muxnet_put(mux_net);
 	return NETDEV_TX_OK;
 }
diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
index f5476e2..c8c7601 100644
--- a/drivers/tty/synclink.c
+++ b/drivers/tty/synclink.c
@@ -7708,7 +7708,7 @@ static netdev_tx_t hdlcdev_xmit(struct sk_buff *skb,
 	dev_kfree_skb(skb);
 
 	/* save start time for transmit timeout detection */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	/* start hardware transmitter if necessary */
 	spin_lock_irqsave(&info->irq_spinlock,flags);
@@ -7764,7 +7764,7 @@ static int hdlcdev_open(struct net_device *dev)
 	mgsl_program_hw(info);
 
 	/* enable network layer transmit */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	netif_start_queue(dev);
 
 	/* inform generic HDLC layer of current DCD status */
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
index c0a2f5a..d5b6471 100644
--- a/drivers/tty/synclink_gt.c
+++ b/drivers/tty/synclink_gt.c
@@ -1493,7 +1493,7 @@ static netdev_tx_t hdlcdev_xmit(struct sk_buff *skb,
 	dev->stats.tx_bytes += skb->len;
 
 	/* save start time for transmit timeout detection */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	spin_lock_irqsave(&info->lock, flags);
 	tx_load(info, skb->data, skb->len);
@@ -1552,7 +1552,7 @@ static int hdlcdev_open(struct net_device *dev)
 	program_hw(info);
 
 	/* enable network layer transmit */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	netif_start_queue(dev);
 
 	/* inform generic HDLC layer of current DCD status */
diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
index 90da0c7..3f89685 100644
--- a/drivers/tty/synclinkmp.c
+++ b/drivers/tty/synclinkmp.c
@@ -1612,7 +1612,7 @@ static netdev_tx_t hdlcdev_xmit(struct sk_buff *skb,
 	dev_kfree_skb(skb);
 
 	/* save start time for transmit timeout detection */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	/* start hardware transmitter if necessary */
 	spin_lock_irqsave(&info->lock,flags);
@@ -1668,7 +1668,7 @@ static int hdlcdev_open(struct net_device *dev)
 	program_hw(info);
 
 	/* enable network layer transmit */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	netif_start_queue(dev);
 
 	/* inform generic HDLC layer of current DCD status */
diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c
index 637809e..a3f7e7c 100644
--- a/drivers/usb/gadget/function/u_ether.c
+++ b/drivers/usb/gadget/function/u_ether.c
@@ -597,7 +597,7 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb,
 		DBG(dev, "tx queue err %d\n", retval);
 		break;
 	case 0:
-		net->trans_start = jiffies;
+		netif_trans_update(net);
 		atomic_inc(&dev->tx_qlen);
 	}
 
diff --git a/net/atm/lec.c b/net/atm/lec.c
index cd3b379..e574a7e 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -194,7 +194,7 @@ lec_send(struct atm_vcc *vcc, struct sk_buff *skb)
 static void lec_tx_timeout(struct net_device *dev)
 {
 	pr_info("%s\n", dev->name);
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	netif_wake_queue(dev);
 }
 
@@ -324,7 +324,7 @@ static netdev_tx_t lec_start_xmit(struct sk_buff *skb,
 out:
 	if (entry)
 		lec_arp_put(entry);
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	return NETDEV_TX_OK;
 }
 
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 0710379..bae1397 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -208,7 +208,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
 	if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE)
 		goto dropped;
 
-	soft_iface->trans_start = jiffies;
+	netif_trans_update(soft_iface);
 	vid = batadv_get_vid(skb, 0);
 	ethhdr = eth_hdr(skb);
 
diff --git a/net/bluetooth/bnep/netdev.c b/net/bluetooth/bnep/netdev.c
index 6ceb5d3..f4fcb4a 100644
--- a/net/bluetooth/bnep/netdev.c
+++ b/net/bluetooth/bnep/netdev.c
@@ -188,7 +188,7 @@ static netdev_tx_t bnep_net_xmit(struct sk_buff *skb,
 	 * So we have to queue them and wake up session thread which is sleeping
 	 * on the sk_sleep(sk).
 	 */
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 	skb_queue_tail(&sk->sk_write_queue, skb);
 	wake_up_interruptible(sk_sleep(sk));
 
diff --git a/net/irda/irlan/irlan_eth.c b/net/irda/irlan/irlan_eth.c
index fcfbe57..d8b7267 100644
--- a/net/irda/irlan/irlan_eth.c
+++ b/net/irda/irlan/irlan_eth.c
@@ -181,7 +181,7 @@ static netdev_tx_t irlan_eth_xmit(struct sk_buff *skb,
 		skb = new_skb;
 	}
 
-	dev->trans_start = jiffies;
+	netif_trans_update(dev);
 
 	len = skb->len;
 	/* Now queue the packet in the transport layer */
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 9c77562..70182cf 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -775,7 +775,7 @@ void dev_activate(struct net_device *dev)
 		transition_one_qdisc(dev, dev_ingress_queue(dev), NULL);
 
 	if (need_watchdog) {
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 		dev_watchdog_up(dev);
 	}
 }
-- 
2.7.3

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From - Thu Nov 08 21:38:52 2018
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Subject: Re: [PATCH net-next 4/5] treewide: replace dev->trans_start update
 with helper
Date: Wed, 04 May 2016 11:14:45 +0300
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Hi,

Florian Westphal <fw@strlen.de> writes:
> Replace all trans_start updates with netif_trans_update helper.
> change was done via spatch:
>
> struct net_device *d;
> @@
> - d->trans_start =3D jiffies
> + netif_trans_update(d)
>
> Compile tested only.
>
> Cc: user-mode-linux-devel@lists.sourceforge.net
> Cc: linux-xtensa@linux-xtensa.org
> Cc: linux1394-devel@lists.sourceforge.net
> Cc: linux-rdma@vger.kernel.org
> Cc: netdev@vger.kernel.org
> Cc: MPT-FusionLinux.pdl@broadcom.com
> Cc: linux-scsi@vger.kernel.org
> Cc: linux-can@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-omap@vger.kernel.org
> Cc: linux-hams@vger.kernel.org
> Cc: linux-usb@vger.kernel.org
> Cc: linux-wireless@vger.kernel.org
> Cc: linux-s390@vger.kernel.org
> Cc: devel@driverdev.osuosl.org
> Cc: b.a.t.m.a.n@lists.open-mesh.org
> Cc: linux-bluetooth@vger.kernel.org
> Signed-off-by: Florian Westphal <fw@strlen.de>
> ---

for u_ether.c:

Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>

> diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/f=
unction/u_ether.c
> index 637809e..a3f7e7c 100644
> --- a/drivers/usb/gadget/function/u_ether.c
> +++ b/drivers/usb/gadget/function/u_ether.c
> @@ -597,7 +597,7 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb,
>  		DBG(dev, "tx queue err %d\n", retval);
>  		break;
>  	case 0:
> -		net->trans_start =3D jiffies;
> +		netif_trans_update(net);
>  		atomic_inc(&dev->tx_qlen);
>  	}

=2D-=20
balbi

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Subject: Re: [PATCH net-next 4/5] treewide: replace dev->trans_start update
 with helper
Date: Wed, 4 May 2016 17:03:01 +0530
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Cc: <user-mode-linux-devel@lists.sourceforge.net>,
	<linux-xtensa@linux-xtensa.org>,
	<linux1394-devel@lists.sourceforge.net>,
	<linux-rdma@vger.kernel.org>, <MPT-FusionLinux.pdl@broadcom.com>,
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To: Florian Westphal <fw@strlen.de>, <netdev@vger.kernel.org>
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On Tuesday 03 May 2016 08:03 PM, Florian Westphal wrote:
> Replace all trans_start updates with netif_trans_update helper.
> change was done via spatch:
> 
> struct net_device *d;
> @@
> - d->trans_start = jiffies
> + netif_trans_update(d)
> 
> Compile tested only.
> 
> Cc: user-mode-linux-devel@lists.sourceforge.net
> Cc: linux-xtensa@linux-xtensa.org
> Cc: linux1394-devel@lists.sourceforge.net
> Cc: linux-rdma@vger.kernel.org
> Cc: netdev@vger.kernel.org
> Cc: MPT-FusionLinux.pdl@broadcom.com
> Cc: linux-scsi@vger.kernel.org
> Cc: linux-can@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-omap@vger.kernel.org
> Cc: linux-hams@vger.kernel.org
> Cc: linux-usb@vger.kernel.org
> Cc: linux-wireless@vger.kernel.org
> Cc: linux-s390@vger.kernel.org
> Cc: devel@driverdev.osuosl.org
> Cc: b.a.t.m.a.n@lists.open-mesh.org
> Cc: linux-bluetooth@vger.kernel.org
> Signed-off-by: Florian Westphal <fw@strlen.de>
> ---

snip...


> diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
> index 0fa75a8..3d4662d 100644
> --- a/drivers/net/ethernet/ti/cpsw.c
> +++ b/drivers/net/ethernet/ti/cpsw.c
> @@ -1381,7 +1381,7 @@ static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb,
>  	struct cpsw_priv *priv = netdev_priv(ndev);
>  	int ret;
>  
> -	ndev->trans_start = jiffies;
> +	netif_trans_update(ndev);
>  
>  	if (skb_padto(skb, CPSW_MIN_PACKET_SIZE)) {
>  		cpsw_err(priv, tx_err, "packet pad failed\n");

for cpsw

Acked-by: Mugunthan V N <mugunthanvnm@ti.com>

Regards
Mugunthan V N
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Subject: Re: [PATCH net-next 4/5] treewide: replace dev->trans_start update
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On Tue, May 03, 2016 at 04:33:13PM +0200, Florian Westphal wrote:
> Replace all trans_start updates with netif_trans_update helper.
> change was done via spatch:
>=20
> struct net_device *d;
> @@
> - d->trans_start =3D jiffies
> + netif_trans_update(d)
>=20
> Compile tested only.
>=20
> Cc: user-mode-linux-devel@lists.sourceforge.net
> Cc: linux-xtensa@linux-xtensa.org
> Cc: linux1394-devel@lists.sourceforge.net
> Cc: linux-rdma@vger.kernel.org
> Cc: netdev@vger.kernel.org
> Cc: MPT-FusionLinux.pdl@broadcom.com
> Cc: linux-scsi@vger.kernel.org
> Cc: linux-can@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-omap@vger.kernel.org
> Cc: linux-hams@vger.kernel.org
> Cc: linux-usb@vger.kernel.org
> Cc: linux-wireless@vger.kernel.org
> Cc: linux-s390@vger.kernel.org
> Cc: devel@driverdev.osuosl.org
> Cc: b.a.t.m.a.n@lists.open-mesh.org
> Cc: linux-bluetooth@vger.kernel.org
> Signed-off-by: Florian Westphal <fw@strlen.de>
> ---

[...]

>  net/batman-adv/soft-interface.c                        | 2 +-

[...]

> diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interf=
ace.c
> index 0710379..bae1397 100644
> --- a/net/batman-adv/soft-interface.c
> +++ b/net/batman-adv/soft-interface.c
> @@ -208,7 +208,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
>  	if (atomic_read(&bat_priv->mesh_state) !=3D BATADV_MESH_ACTIVE)
>  		goto dropped;
> =20
> -	soft_iface->trans_start =3D jiffies;
> +	netif_trans_update(soft_iface);
>  	vid =3D batadv_get_vid(skb, 0);
>  	ethhdr =3D eth_hdr(skb);
> =20


Acked-by: Antonio Quartulli <a@unstable.cc>

--=20
Antonio Quartulli

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From - Thu Nov 08 21:38:52 2018
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Subject: [patch V4] lib: GCD: Use binary GCD algorithm instead of Euclidean
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From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>

The binary GCD algorithm is based on the following facts:
	1. If a and b are all evens, then gcd(a,b) = 2 * gcd(a/2, b/2)
	2. If a is even and b is odd, then gcd(a,b) = gcd(a/2, b)
	3. If a and b are all odds, then gcd(a,b) = gcd((a-b)/2, b) = gcd((a+b)/2, b)

Even on x86 machines with reasonable division hardware, the binary
algorithm runs about 25% faster (80% the execution time) than the
division-based Euclidian algorithm.

On platforms like Alpha and ARMv6 where division is a function call to
emulation code, it's even more significant.

There are two variants of the code here, depending on whether a
fast __ffs (find least significant set bit) instruction is available.
This allows the unpredictable branches in the bit-at-a-time shifting
loop to be eliminated.

If fast __ffs is not available, the "even/odd" GCD variant is used.

I use the following code to benchmark:

	#include <stdio.h>
	#include <stdlib.h>
	#include <stdint.h>
	#include <string.h>
	#include <time.h>
	#include <unistd.h>

	#define swap(a, b) \
		do { \
			a ^= b; \
			b ^= a; \
			a ^= b; \
		} while (0)

	unsigned long gcd0(unsigned long a, unsigned long b)
	{
		unsigned long r;

		if (a < b) {
			swap(a, b);
		}

		if (b == 0)
			return a;

		while ((r = a % b) != 0) {
			a = b;
			b = r;
		}

		return b;
	}

	unsigned long gcd1(unsigned long a, unsigned long b)
	{
		unsigned long r = a | b;

		if (!a || !b)
			return r;

		b >>= __builtin_ctzl(b);

		for (;;) {
			a >>= __builtin_ctzl(a);
			if (a == b)
				return a << __builtin_ctzl(r);

			if (a < b)
				swap(a, b);
			a -= b;
		}
	}

	unsigned long gcd2(unsigned long a, unsigned long b)
	{
		unsigned long r = a | b;

		if (!a || !b)
			return r;

		r &= -r;

		while (!(b & r))
			b >>= 1;

		for (;;) {
			while (!(a & r))
				a >>= 1;
			if (a == b)
				return a;

			if (a < b)
				swap(a, b);
			a -= b;
			a >>= 1;
			if (a & r)
				a += b;
			a >>= 1;
		}
	}

	unsigned long gcd3(unsigned long a, unsigned long b)
	{
		unsigned long r = a | b;

		if (!a || !b)
			return r;

		b >>= __builtin_ctzl(b);
		if (b == 1)
			return r & -r;

		for (;;) {
			a >>= __builtin_ctzl(a);
			if (a == 1)
				return r & -r;
			if (a == b)
				return a << __builtin_ctzl(r);

			if (a < b)
				swap(a, b);
			a -= b;
		}
	}

	unsigned long gcd4(unsigned long a, unsigned long b)
	{
		unsigned long r = a | b;

		if (!a || !b)
			return r;

		r &= -r;

		while (!(b & r))
			b >>= 1;
		if (b == r)
			return r;

		for (;;) {
			while (!(a & r))
				a >>= 1;
			if (a == r)
				return r;
			if (a == b)
				return a;

			if (a < b)
				swap(a, b);
			a -= b;
			a >>= 1;
			if (a & r)
				a += b;
			a >>= 1;
		}
	}

	static unsigned long (*gcd_func[])(unsigned long a, unsigned long b) = {
		gcd0, gcd1, gcd2, gcd3, gcd4,
	};

	#define TEST_ENTRIES (sizeof(gcd_func) / sizeof(gcd_func[0]))

	#if defined(__x86_64__)

	#define rdtscll(val) do { \
		unsigned long __a,__d; \
		__asm__ __volatile__("rdtsc" : "=a" (__a), "=d" (__d)); \
		(val) = ((unsigned long long)__a) | (((unsigned long long)__d)<<32); \
	} while(0)

	static unsigned long long benchmark_gcd_func(unsigned long (*gcd)(unsigned long, unsigned long),
								unsigned long a, unsigned long b, unsigned long *res)
	{
		unsigned long long start, end;
		unsigned long long ret;
		unsigned long gcd_res;

		rdtscll(start);
		gcd_res = gcd(a, b);
		rdtscll(end);

		if (end >= start)
			ret = end - start;
		else
			ret = ~0ULL - start + 1 + end;

		*res = gcd_res;
		return ret;
	}

	#else

	static inline struct timespec read_time(void)
	{
		struct timespec time;
		clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &time);
		return time;
	}

	static inline unsigned long long diff_time(struct timespec start, struct timespec end)
	{
		struct timespec temp;

		if ((end.tv_nsec - start.tv_nsec) < 0) {
			temp.tv_sec = end.tv_sec - start.tv_sec - 1;
			temp.tv_nsec = 1000000000ULL + end.tv_nsec - start.tv_nsec;
		} else {
			temp.tv_sec = end.tv_sec - start.tv_sec;
			temp.tv_nsec = end.tv_nsec - start.tv_nsec;
		}

		return temp.tv_sec * 1000000000ULL + temp.tv_nsec;
	}

	static unsigned long long benchmark_gcd_func(unsigned long (*gcd)(unsigned long, unsigned long),
								unsigned long a, unsigned long b, unsigned long *res)
	{
		struct timespec start, end;
		unsigned long gcd_res;

		start = read_time();
		gcd_res = gcd(a, b);
		end = read_time();

		*res = gcd_res;
		return diff_time(start, end);
	}

	#endif

	static inline unsigned long get_rand()
	{
		if (sizeof(long) == 8)
			return (unsigned long)rand() << 32 | rand();
		else
			return rand();
	}

	int main(int argc, char **argv)
	{
		unsigned int seed = time(0);
		int loops = 100;
		int repeats = 1000;
		unsigned long (*res)[TEST_ENTRIES];
		unsigned long long elapsed[TEST_ENTRIES];
		int i, j, k;

		for (;;) {
			int opt = getopt(argc, argv, "n:r:s:");
			/* End condition always first */
			if (opt == -1)
				break;

			switch (opt) {
			case 'n':
				loops = atoi(optarg);
				break;
			case 'r':
				repeats = atoi(optarg);
				break;
			case 's':
				seed = strtoul(optarg, NULL, 10);
				break;
			default:
				/* You won't actually get here. */
				break;
			}
		}

		res = malloc(sizeof(unsigned long) * TEST_ENTRIES * loops);
		memset(elapsed, 0, sizeof(elapsed));

		srand(seed);
		for (j = 0; j < loops; j++) {
			unsigned long a = get_rand();
			/* Do we have args? */
			unsigned long b = argc > optind ? strtoul(argv[optind], NULL, 10) : get_rand();
			unsigned long long min_elapsed[TEST_ENTRIES];
			for (k = 0; k < repeats; k++) {
				for (i = 0; i < TEST_ENTRIES; i++) {
					unsigned long long tmp = benchmark_gcd_func(gcd_func[i], a, b, &res[j][i]);
					if (k == 0 || min_elapsed[i] > tmp)
						min_elapsed[i] = tmp;
				}
			}
			for (i = 0; i < TEST_ENTRIES; i++)
				elapsed[i] += min_elapsed[i];
		}

		for (i = 0; i < TEST_ENTRIES; i++)
			printf("gcd%d: elapsed %llu\n", i, elapsed[i]);

		k = 0;
		srand(seed);
		for (j = 0; j < loops; j++) {
			unsigned long a = get_rand();
			unsigned long b = argc > optind ? strtoul(argv[optind], NULL, 10) : get_rand();
			for (i = 1; i < TEST_ENTRIES; i++) {
				if (res[j][i] != res[j][0])
					break;
			}
			if (i < TEST_ENTRIES) {
				if (k == 0) {
					k = 1;
					fprintf(stderr, "Error:\n");
				}
				fprintf(stderr, "gcd(%lu, %lu): ", a, b);
				for (i = 0; i < TEST_ENTRIES; i++)
					fprintf(stderr, "%ld%s", res[j][i], i < TEST_ENTRIES - 1 ? ", " : "\n");
			}
		}

		if (k == 0)
			fprintf(stderr, "PASS\n");

		free(res);

		return 0;
	}

Compiled with "-O2", on "VirtualBox 4.4.0-22-generic #38-Ubuntu x86_64" got:

zhaoxiuzeng@zhaoxiuzeng-VirtualBox:~/develop$ ./gcd -r 500000 -n 10
gcd0: elapsed 10174
gcd1: elapsed 2120
gcd2: elapsed 2902
gcd3: elapsed 2039
gcd4: elapsed 2812
PASS
zhaoxiuzeng@zhaoxiuzeng-VirtualBox:~/develop$ ./gcd -r 500000 -n 10
gcd0: elapsed 9309
gcd1: elapsed 2280
gcd2: elapsed 2822
gcd3: elapsed 2217
gcd4: elapsed 2710
PASS
zhaoxiuzeng@zhaoxiuzeng-VirtualBox:~/develop$ ./gcd -r 500000 -n 10
gcd0: elapsed 9589
gcd1: elapsed 2098
gcd2: elapsed 2815
gcd3: elapsed 2030
gcd4: elapsed 2718
PASS
zhaoxiuzeng@zhaoxiuzeng-VirtualBox:~/develop$ ./gcd -r 500000 -n 10
gcd0: elapsed 9914
gcd1: elapsed 2309
gcd2: elapsed 2779
gcd3: elapsed 2228
gcd4: elapsed 2709
PASS

Changes to V3:
- Fix build error
- Select CPU_NO_EFFICIENT_FFS if CONFIG_ARC && CONFIG_ISA_ARCOMPACT
- Select CPU_NO_EFFICIENT_FFS if CONFIG_S390 && !CONFIG_HAVE_MARCH_Z9_109_FEATURES
- Do new brnchmark
- Return immediately if one number becomes a power of 2
- Add comments written by George Spelvin

Changes to V2:
- Add a new Kconfig variable CPU_NO_EFFICIENT_FFS
- Separate into two versions by CPU_NO_EFFICIENT_FFS
- Return directly from the loop, rather than using break().
- Use "r &= -r" mostly because it's clearer.

Changes to V1:
- Don't touch Kconfig, remove the Euclidean algorithm implementation
- Don't use the "even-odd" variant
- Use __ffs if the CPU has efficient __ffs

Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
Signed-off-by: George Spelvin <linux@horizon.com>
---
 arch/Kconfig                         |  3 ++
 arch/alpha/Kconfig                   |  1 +
 arch/arc/Kconfig                     |  1 +
 arch/arm/mm/Kconfig                  |  3 ++
 arch/h8300/Kconfig                   |  1 +
 arch/m32r/Kconfig                    |  1 +
 arch/m68k/Kconfig.cpu                | 11 ++++++
 arch/metag/Kconfig                   |  1 +
 arch/microblaze/Kconfig              |  1 +
 arch/mips/include/asm/cpu-features.h | 10 +++++
 arch/nios2/Kconfig                   |  1 +
 arch/openrisc/Kconfig                |  1 +
 arch/parisc/Kconfig                  |  1 +
 arch/s390/Kconfig                    |  2 +-
 arch/score/Kconfig                   |  1 +
 arch/sh/Kconfig                      |  1 +
 arch/sparc/Kconfig                   |  1 +
 lib/gcd.c                            | 77 +++++++++++++++++++++++++++++++-----
 18 files changed, 107 insertions(+), 11 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 81869a5..275f17d 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -638,4 +638,7 @@ config COMPAT_OLD_SIGACTION
 config ARCH_NO_COHERENT_DMA_MMAP
 	bool
 
+config CPU_NO_EFFICIENT_FFS
+	def_bool n
+
 source "kernel/gcov/Kconfig"
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 9d8a858..44e6f05 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -27,6 +27,7 @@ config ALPHA
 	select MODULES_USE_ELF_RELA
 	select ODD_RT_SIGACTION
 	select OLD_SIGSUSPEND
+	select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
 	help
 	  The Alpha is a 64-bit general-purpose processor designed and
 	  marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index ec4791e..f41eb4c 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -101,6 +101,7 @@ choice
 
 config ISA_ARCOMPACT
 	bool "ARCompact ISA"
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  The original ARC ISA of ARC600/700 cores
 
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 5534766..cb569b6 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -421,18 +421,21 @@ config CPU_32v3
 	select CPU_USE_DOMAINS if MMU
 	select NEED_KUSER_HELPERS
 	select TLS_REG_EMUL if SMP || !MMU
+	select CPU_NO_EFFICIENT_FFS
 
 config CPU_32v4
 	bool
 	select CPU_USE_DOMAINS if MMU
 	select NEED_KUSER_HELPERS
 	select TLS_REG_EMUL if SMP || !MMU
+	select CPU_NO_EFFICIENT_FFS
 
 config CPU_32v4T
 	bool
 	select CPU_USE_DOMAINS if MMU
 	select NEED_KUSER_HELPERS
 	select TLS_REG_EMUL if SMP || !MMU
+	select CPU_NO_EFFICIENT_FFS
 
 config CPU_32v5
 	bool
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 986ea84..aa232de 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -20,6 +20,7 @@ config H8300
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_LZO
 	select HAVE_ARCH_KGDB
+	select CPU_NO_EFFICIENT_FFS
 
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index c82b292..3cc8498 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -17,6 +17,7 @@ config M32R
 	select ARCH_USES_GETTIMEOFFSET
 	select MODULES_USE_ELF_RELA
 	select HAVE_DEBUG_STACKOVERFLOW
+	select CPU_NO_EFFICIENT_FFS
 
 config SBUS
 	bool
diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu
index 0dfcf12..0b6efe8 100644
--- a/arch/m68k/Kconfig.cpu
+++ b/arch/m68k/Kconfig.cpu
@@ -40,6 +40,7 @@ config M68000
 	select CPU_HAS_NO_MULDIV64
 	select CPU_HAS_NO_UNALIGNED
 	select GENERIC_CSUM
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  The Freescale (was Motorola) 68000 CPU is the first generation of
 	  the well known M68K family of processors. The CPU core as well as
@@ -51,6 +52,7 @@ config MCPU32
 	bool
 	select CPU_HAS_NO_BITFIELDS
 	select CPU_HAS_NO_UNALIGNED
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  The Freescale (was then Motorola) CPU32 is a CPU core that is
 	  based on the 68020 processor. For the most part it is used in
@@ -130,6 +132,7 @@ config M5206
 	depends on !MMU
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Motorola ColdFire 5206 processor support.
 
@@ -138,6 +141,7 @@ config M5206e
 	depends on !MMU
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Motorola ColdFire 5206e processor support.
 
@@ -163,6 +167,7 @@ config M5249
 	depends on !MMU
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Motorola ColdFire 5249 processor support.
 
@@ -171,6 +176,7 @@ config M525x
 	depends on !MMU
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Freescale (Motorola) Coldfire 5251/5253 processor support.
 
@@ -189,6 +195,7 @@ config M5272
 	depends on !MMU
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Motorola ColdFire 5272 processor support.
 
@@ -217,6 +224,7 @@ config M5307
 	select COLDFIRE_SW_A7
 	select HAVE_CACHE_CB
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Motorola ColdFire 5307 processor support.
 
@@ -242,6 +250,7 @@ config M5407
 	select COLDFIRE_SW_A7
 	select HAVE_CACHE_CB
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Motorola ColdFire 5407 processor support.
 
@@ -251,6 +260,7 @@ config M547x
 	select MMU_COLDFIRE if MMU
 	select HAVE_CACHE_CB
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Freescale ColdFire 5470/5471/5472/5473/5474/5475 processor support.
 
@@ -260,6 +270,7 @@ config M548x
 	select M54xx
 	select HAVE_CACHE_CB
 	select HAVE_MBAR
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  Freescale ColdFire 5480/5481/5482/5483/5484/5485 processor support.
 
diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig
index a0fa88d..2ac2de6 100644
--- a/arch/metag/Kconfig
+++ b/arch/metag/Kconfig
@@ -29,6 +29,7 @@ config METAG
 	select OF
 	select OF_EARLY_FLATTREE
 	select SPARSE_IRQ
+	select CPU_NO_EFFICIENT_FFS
 
 config STACKTRACE_SUPPORT
 	def_bool y
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 3d793b5..f17c3a4 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -32,6 +32,7 @@ config MICROBLAZE
 	select OF_EARLY_FLATTREE
 	select TRACING_SUPPORT
 	select VIRT_TO_BUS
+	select CPU_NO_EFFICIENT_FFS
 
 config SWAP
 	def_bool n
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index eeec8c8..e20e100 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -180,6 +180,16 @@
 #endif
 #endif
 
+/* __builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r */
+#if !((defined(cpu_has_mips32r1) && cpu_has_mips32r1) || \
+	  (defined(cpu_has_mips32r2) && cpu_has_mips32r2) || \
+	  (defined(cpu_has_mips32r6) && cpu_has_mips32r6) || \
+	  (defined(cpu_has_mips64r1) && cpu_has_mips64r1) || \
+	  (defined(cpu_has_mips64r2) && cpu_has_mips64r2) || \
+	  (defined(cpu_has_mips64r6) && cpu_has_mips64r6))
+#define CONFIG_CPU_NO_EFFICIENT_FFS 1
+#endif
+
 #ifndef cpu_has_mips_1
 # define cpu_has_mips_1		(!cpu_has_mips_r6)
 #endif
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 4375554..f10bd2c 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -16,6 +16,7 @@ config NIOS2
 	select SOC_BUS
 	select SPARSE_IRQ
 	select USB_ARCH_HAS_HCD if USB_SUPPORT
+	select CPU_NO_EFFICIENT_FFS
 
 config GENERIC_CSUM
 	def_bool y
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index e118c02..142cb05 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -25,6 +25,7 @@ config OPENRISC
 	select MODULES_USE_ELF_RELA
 	select HAVE_DEBUG_STACKOVERFLOW
 	select OR1K_PIC
+	select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1
 
 config MMU
 	def_bool y
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 88cfaa8..3d498a6 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -32,6 +32,7 @@ config PARISC
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_ARCH_SECCOMP_FILTER
 	select ARCH_NO_COHERENT_DMA_MMAP
+	select CPU_NO_EFFICIENT_FFS
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index bf24ab1..9eb3932 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -164,7 +164,7 @@ config S390
 	select TTY
 	select VIRT_CPU_ACCOUNTING
 	select VIRT_TO_BUS
-
+	select CPU_NO_EFFICIENT_FFS if !HAVE_MARCH_Z9_109_FEATURES
 
 config SCHED_OMIT_FRAME_POINTER
 	def_bool y
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index 366e1b5..507d631 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -14,6 +14,7 @@ config SCORE
 	select VIRT_TO_BUS
 	select MODULES_USE_ELF_REL
 	select CLONE_BACKWARDS
+	select CPU_NO_EFFICIENT_FFS
 
 choice
 	prompt "System type"
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 7ed20fc..56cf5e5 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -44,6 +44,7 @@ config SUPERH
 	select OLD_SIGSUSPEND
 	select OLD_SIGACTION
 	select HAVE_ARCH_AUDITSYSCALL
+	select CPU_NO_EFFICIENT_FFS
 	help
 	  The SuperH is a RISC processor targeted for use in embedded systems
 	  and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 57ffaf2..ca675ed 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -42,6 +42,7 @@ config SPARC
 	select ODD_RT_SIGACTION
 	select OLD_SIGSUSPEND
 	select ARCH_HAS_SG_CHAIN
+	select CPU_NO_EFFICIENT_FFS
 
 config SPARC32
 	def_bool !64BIT
diff --git a/lib/gcd.c b/lib/gcd.c
index 3657f12..b9fbe73 100644
--- a/lib/gcd.c
+++ b/lib/gcd.c
@@ -2,20 +2,77 @@
 #include <linux/gcd.h>
 #include <linux/export.h>
 
-/* Greatest common divisor */
+/*
+ * This implements the binary GCD algorithm. (Often attributed to Stein,
+ * but as Knuth has noted, appears in a first-century Chinese math text.)
+ *
+ * This is faster than the division-based algorithm even on x86, which
+ * has decent hardware division.
+ */
+
+#if !defined(CONFIG_CPU_NO_EFFICIENT_FFS)
+
+/* If __ffs is available, the even/odd algorithm benchmarks slower. */
 unsigned long gcd(unsigned long a, unsigned long b)
 {
-	unsigned long r;
+	unsigned long r = a | b;
+
+	if (!a || !b)
+		return r;
 
-	if (a < b)
-		swap(a, b);
+	b >>= __ffs(b);
+	if (b == 1)
+		return r & -r;
 
-	if (!b)
-		return a;
-	while ((r = a % b) != 0) {
-		a = b;
-		b = r;
+	for (;;) {
+		a >>= __ffs(a);
+		if (a == 1)
+			return r & -r;
+		if (a == b)
+			return a << __ffs(r);
+
+		if (a < b)
+			swap(a, b);
+		a -= b;
 	}
-	return b;
 }
+
+#else
+
+/* If normalization is done by loops, the even/odd algorithm is a win. */
+unsigned long gcd(unsigned long a, unsigned long b)
+{
+	unsigned long r = a | b;
+
+	if (!a || !b)
+		return r;
+
+	/* Isolate lsbit of r */
+	r &= -r;
+
+	while (!(b & r))
+		b >>= 1;
+	if (b == r)
+		return r;
+
+	for (;;) {
+		while (!(a & r))
+			a >>= 1;
+		if (a == r)
+			return r;
+		if (a == b)
+			return a;
+
+		if (a < b)
+			swap(a, b);
+		a -= b;
+		a >>= 1;
+		if (a & r)
+			a += b;
+		a >>= 1;
+	}
+}
+
+#endif
+
 EXPORT_SYMBOL_GPL(gcd);
-- 
2.7.4





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Hi Linus,

Please pull one small ftrace kernel crash fix for the parisc architecture from 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.6-5

Patch from Dmitry V. Levin to fix a kernel crash when a straced process calls
the (invalid) syscall which is equal to value of __NR_Linux_syscalls.

Thanks,
Helge


----------------------------------------------------------------
Dmitry V. Levin (1):
      parisc: fix a bug when syscall number of tracee is __NR_Linux_syscalls

 arch/parisc/kernel/syscall.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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From - Thu Nov 08 21:38:52 2018
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From: Andrew Morton <akpm@linux-foundation.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.m68k,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.openrisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [patch V4] lib: GCD: Use binary GCD algorithm instead of
 Euclidean
Date: Fri, 6 May 2016 16:00:41 -0700
Lines: 92
Approved: news@gmane.org
Message-ID: <20160506160041.2b5e47757329c288efaed4fb@linux-foundation.org>
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Cc: linux@horizon.com, peterz@infradead.org, jjuran@gmail.com,
	James.Bottomley@HansenPartnership.com, geert@linux-m68k.org,
	dalias@libc.org, sam@ravnborg.org, davem@davemloft.net,
	Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>,
	Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	Vineet Gupta <vgupta@synopsys.com>,
	Russell King <linux@arm.linux.org.uk>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	James Hogan <james.hogan@imgtec.com>,
	Michal Simek <monstr@monstr.eu>,
	Ralf Baechle <ralf@linux-mips.org>,
	Ley Foon Tan <lftan@altera.com>,
	Jonas Bonn <jonas@southpole.se>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Chen Liqin <liqin.linux@gmail.com>,
	Lennox Wu <lennox.wu@gmail.com>, linux-kernel@vger
To: zengzhaoxiu@163.com
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On Fri,  6 May 2016 17:42:42 +0800 zengzhaoxiu@163.com wrote:

> From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
> 
> The binary GCD algorithm is based on the following facts:
> 	1. If a and b are all evens, then gcd(a,b) = 2 * gcd(a/2, b/2)
> 	2. If a is even and b is odd, then gcd(a,b) = gcd(a/2, b)
> 	3. If a and b are all odds, then gcd(a,b) = gcd((a-b)/2, b) = gcd((a+b)/2, b)
> 
> Even on x86 machines with reasonable division hardware, the binary
> algorithm runs about 25% faster (80% the execution time) than the
> division-based Euclidian algorithm.
> 
> On platforms like Alpha and ARMv6 where division is a function call to
> emulation code, it's even more significant.
> 
> There are two variants of the code here, depending on whether a
> fast __ffs (find least significant set bit) instruction is available.
> This allows the unpredictable branches in the bit-at-a-time shifting
> loop to be eliminated.
> 
> ...
>
> --- a/arch/alpha/Kconfig
> +++ b/arch/alpha/Kconfig
> @@ -27,6 +27,7 @@ config ALPHA
>  	select MODULES_USE_ELF_RELA
>  	select ODD_RT_SIGACTION
>  	select OLD_SIGSUSPEND
> +	select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
>  	help

argh.  Please don't always put new items at end-of-list.  That's the
perfect way of maximizing the number of patch collisions.  Insert it at
a random position. avoiding the end (if the list isn't alpha-sorted,
which it should be).

<fixes it all up>

>
> ...
>
> --- a/arch/mips/include/asm/cpu-features.h
> +++ b/arch/mips/include/asm/cpu-features.h
> @@ -180,6 +180,16 @@
>  #endif
>  #endif
>  
> +/* __builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r */
> +#if !((defined(cpu_has_mips32r1) && cpu_has_mips32r1) || \
> +	  (defined(cpu_has_mips32r2) && cpu_has_mips32r2) || \
> +	  (defined(cpu_has_mips32r6) && cpu_has_mips32r6) || \
> +	  (defined(cpu_has_mips64r1) && cpu_has_mips64r1) || \
> +	  (defined(cpu_has_mips64r2) && cpu_has_mips64r2) || \
> +	  (defined(cpu_has_mips64r6) && cpu_has_mips64r6))
> +#define CONFIG_CPU_NO_EFFICIENT_FFS 1
> +#endif

#defining a CONFIG_ variable is pretty rude - defining these is the
role of the Kconfig system, not of header files macros.

This was easy:

--- a/arch/mips/include/asm/cpu-features.h~lib-gcd-use-binary-gcd-algorithm-instead-of-euclidean-fix
+++ a/arch/mips/include/asm/cpu-features.h
@@ -187,7 +187,7 @@
 	  (defined(cpu_has_mips64r1) && cpu_has_mips64r1) || \
 	  (defined(cpu_has_mips64r2) && cpu_has_mips64r2) || \
 	  (defined(cpu_has_mips64r6) && cpu_has_mips64r6))
-#define CONFIG_CPU_NO_EFFICIENT_FFS 1
+#define CPU_NO_EFFICIENT_FFS 1
 #endif
 
 #ifndef cpu_has_mips_1
--- a/lib/gcd.c~lib-gcd-use-binary-gcd-algorithm-instead-of-euclidean-fix
+++ a/lib/gcd.c
@@ -10,7 +10,7 @@
  * has decent hardware division.
  */
 
-#if !defined(CONFIG_CPU_NO_EFFICIENT_FFS)
+#if !defined(CONFIG_CPU_NO_EFFICIENT_FFS) && !defined(CPU_NO_EFFICIENT_FFS)
 
 /* If __ffs is available, the even/odd algorithm benchmarks slower. */
 unsigned long gcd(unsigned long a, unsigned long b)
_

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From - Thu Nov 08 21:38:53 2018
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From: "George Spelvin" <linux@horizon.com>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.kernel.arc,gmane.linux.ports.openrisc,gmane.linux.ports.sparc
Subject: Re: [patch V4] lib: GCD: Use binary GCD algorithm instead of Euclidean
Date: 7 May 2016 04:41:29 -0400
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Approved: news@gmane.org
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	james.hogan@imgtec.com, jejb@parisc-linux.org, jonas@southpole.se,
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To: akpm@linux-foundation.org, dalias@libc.org, davem@davemloft.net,
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Nothing critical, but a bit of kibitzing.
(That is slang in the Yiddish language for a person
who offers annoying and unwanted advice.)

> The binary GCD algorithm is based on the following facts:
> 	1. If a and b are all evens, then gcd(a,b) = 2 * gcd(a/2, b/2)
>	2. If a is even and b is odd, then gcd(a,b) = gcd(a/2, b)
>	3. If a and b are all odds, then gcd(a,b) = gcd((a-b)/2, b) = gcd((a+b)/2, b)

1) "even" and "odd" are adjectives.  In English, adjectives to not have
   plural suffixes.  Thus, "they are even" or "they are odd".
2) Although "all" is not exactly wrong, it sounds odd.  Since there are
   exactly two of them it's clearer to say "both".

If I also rephrase the last line to fit into 80 columns, you get:

  The binary GCD algorithm is based on the following facts:
- 	1. If a and b are all evens, then gcd(a,b) = 2 * gcd(a/2, b/2)
+ 	1. If a and b are both even, then gcd(a,b) = 2 * gcd(a/2, b/2)
 	2. If a is even and b is odd, then gcd(a,b) = gcd(a/2, b)
-	3. If a and b are all odds, then gcd(a,b) = gcd((a-b)/2, b) = gcd((a+b)/2, b)
+	3. If both are odd, then gcd(a,b) = gcd((a-b)/2, b) = gcd((a+b)/2, b)

3) Negative config options are always confusing.

Would it be better to call it CONFIG_INEFFICIEBNT_FFS, or even simpler
CONFIG_SLOW_FFS?

Also, you're allowed to add "help" to a non-interactive config option,
and some documentation might be useful.
E.g.

+config CPU_SLOW_FFS
+	def_bool n
+	help
+	  If n, the CPU supports a fast __ffs (__builtin_ctz) operation,
+	  either directly or via a short code sequence using a count
+	  leading zeros or population count instruction.  If y, the
+	  operation is emulated by slower software, such as an unrolled
+	  binary search.
+
+	  This is purely an optimization option; the kernel
+	  will function correctly regardless of how it is set.
+

Your benchmark code doesn't have to have a separate code path if
__x86_64__; rdtsc works on 32-bit code just as well.  paths.  And the
way you subtract the end and start times is unnecessarily complicated.
The C language guarantees that unsigned arithmetic simply wraps modulo
2^bits as expected.

Here's a simplified version:

	#include <stdio.h>
	#include <stdlib.h>
	#include <stdint.h>
	#include <string.h>
	#include <time.h>
	#include <unistd.h>

	#define swap(a, b) \
		do { \
			a ^= b; \
			b ^= a; \
			a ^= b; \
		} while (0)

	/* The Euclidean GCD algorithm */
	unsigned long gcd0(unsigned long a, unsigned long b)
	{
		if (a < b)
			swap(a, b);

		while (b != 0) {
			unsigned long r = a % b;
			a = b;
			b = r;
		}
		return a;
	}

	/* The binary GCD algorithm, using __builtin_ctzl */
	unsigned long gcd1(unsigned long a, unsigned long b)
	{
		unsigned long r = a | b;

		if (!a || !b)
			return r;

		b >>= __builtin_ctzl(b);

		do {
			a >>= __builtin_ctzl(a);

			if (a < b)
				swap(a, b);
			a -= b;
		} while (a);
		return b << __builtin_ctzl(r);
	}

	/* Binary GCD algorithm, even/odd variant, without __builtin_ctzl */
	unsigned long gcd2(unsigned long a, unsigned long b)
	{
		unsigned long r = a | b;

		if (!a || !b)
			return r;

		r &= -r;

		while (!(b & r))
			b >>= 1;

		for (;;) {
			while (!(a & r))
				a >>= 1;
			if (a < b)
				swap(a, b);
			else if (a == b)
				return a;
			a -= b;
			a >>= 1;
			if (a & r)
				a += b;
			a >>= 1;
		}
	}

	/* A variant of gcd1, with early out for gcd = 1 */
	unsigned long gcd3(unsigned long a, unsigned long b)
	{
		unsigned long r = a | b;

		if (!a || !b)
			return r;

		b >>= __builtin_ctzl(b);
		if (b == 1)
			return r & -r;

		for (;;) {
			a >>= __builtin_ctzl(a);
			if (a == b || a == 1)
				return a << __builtin_ctzl(r);

			if (a < b)
				swap(a, b);
			a -= b;
		}
	}

	unsigned long gcd4(unsigned long a, unsigned long b)
	{
		unsigned long r = a | b;

		if (!a || !b)
			return r;

		r &= -r;

		while (!(b & r))
			b >>= 1;
		if (b == r)
			return r;

		for (;;) {
			while (!(a & r))
				a >>= 1;
			if (a == b || a == r)
				return a;

			if (a < b)
				swap(a, b);
			a -= b;
			a >>= 1;
			if (a & r)
				a += b;
			a >>= 1;
		}
	}

	static unsigned long (*gcd_func[])(unsigned long a, unsigned long b) = {
		gcd0, gcd1, gcd2, gcd3, gcd4,
	};

	#define TEST_ENTRIES (int)(sizeof(gcd_func) / sizeof(gcd_func[0]))

	#define rdtscll(val) do { \
		unsigned __a,__d; \
		__asm__ __volatile__("rdtsc" : "=a" (__a), "=d" (__d)); \
		(val) = __a | (unsigned long long)__d << 32; \
	} while(0)

	static unsigned long long
	benchmark_gcd_func(unsigned long (*gcd)(unsigned long, unsigned long),
			   unsigned long a, unsigned long b, unsigned long *res)
	{
		unsigned long long start, end;
		unsigned long gcd_res;

		rdtscll(start);
		gcd_res = gcd(a, b);
		rdtscll(end);

		*res = gcd_res;
		return end - start;
	}

	static inline unsigned long get_rand()
	{
		if (sizeof(long) == 8)
			return (unsigned long)rand() << 32 | rand();
		else
			return rand();
	}

	int main(int argc, char **argv)
	{
		unsigned int seed = time(0);
		int loops = 100;
		int repeats = 1000;
		unsigned long (*res)[TEST_ENTRIES];
		unsigned long long elapsed[TEST_ENTRIES];
		int i, j, k;

		for (;;) {
			int opt = getopt(argc, argv, "n:r:s:");
			/* End condition always first */
			if (opt == -1)
				break;

			switch (opt) {
			case 'n':
				loops = atoi(optarg);
				break;
			case 'r':
				repeats = atoi(optarg);
				break;
			case 's':
				seed = strtoul(optarg, NULL, 10);
				break;
			default:
				/* You won't actually get here. */
				break;
			}
		}

		res = malloc(sizeof(unsigned long) * TEST_ENTRIES * loops);
		memset(elapsed, 0, sizeof(elapsed));

		srand(seed);
		for (j = 0; j < loops; j++) {
			unsigned long a = get_rand();
			/* Do we have args? */
			unsigned long b = argc > optind ? strtoul(argv[optind], NULL, 10) : get_rand();
			unsigned long long min_elapsed[TEST_ENTRIES];
			for (k = 0; k < repeats; k++) {
				for (i = 0; i < TEST_ENTRIES; i++) {
					unsigned long long tmp = benchmark_gcd_func(gcd_func[i], a, b, &res[j][i]);
					if (k == 0 || min_elapsed[i] > tmp)
						min_elapsed[i] = tmp;
				}
			}
			for (i = 0; i < TEST_ENTRIES; i++)
				elapsed[i] += min_elapsed[i];
		}

		for (i = 0; i < TEST_ENTRIES; i++)
			printf("gcd%d: elapsed %llu\n", i, elapsed[i]);

		k = 0;
		srand(seed);
		for (j = 0; j < loops; j++) {
			unsigned long a = get_rand();
			unsigned long b = argc > optind ? strtoul(argv[optind], NULL, 10) : get_rand();
			for (i = 1; i < TEST_ENTRIES; i++) {
				if (res[j][i] != res[j][0])
					break;
			}
			if (i < TEST_ENTRIES) {
				if (k == 0) {
					k = 1;
					fprintf(stderr, "Error:\n");
				}
				fprintf(stderr, "gcd(%lu, %lu): ", a, b);
				for (i = 0; i < TEST_ENTRIES; i++)
					fprintf(stderr, "%ld%s", res[j][i], i < TEST_ENTRIES - 1 ? ", " : "\n");
			}
		}

		if (k == 0)
			fprintf(stderr, "PASS\n");

		free(res);

		return 0;
	}

Here are some more timings, with the same flags as your tests:

First, 32 bit code:
		gcd0	gcd1	gcd2	gcd3	gcd4
Ivy Bridge	3156	1192	1740	1160	1640	PASS
AMD Phenom	7150	2564	2348	2975	2843	PASS
Core 2		4176	2592	4164	2604	3900	PASS
Pentium 4	11492	4784	7632	4852	6452	PASS

And 64-bit (longer times becuase the inputs are larger):
Ivy Bridge	10636	2496	3500	2432	3360	PASS
AMD Phenom	19482	4058	6030	5001	6845	PASS

Looking at those, I'm not sure how much better the gcd3/4 versions are
than gcd1/2.  The difference seems pretty minor and sometimes negative.
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From - Thu Nov 08 21:38:53 2018
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Subject: Re: [patch V4] lib: GCD: Use binary GCD algorithm instead of Euclidean
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"George Spelvin" <linux@horizon.com> writes:

> Your benchmark code doesn't have to have a separate code path if
> __x86_64__; rdtsc works on 32-bit code just as well.

Take a look at the CC: list.

Andreas.

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Subject: Re: [patch V4] lib: GCD: Use binary GCD algorithm instead of
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> diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
> index 57ffaf2..ca675ed 100644
> --- a/arch/sparc/Kconfig
> +++ b/arch/sparc/Kconfig
> @@ -42,6 +42,7 @@ config SPARC
>  	select ODD_RT_SIGACTION
>  	select OLD_SIGSUSPEND
>  	select ARCH_HAS_SG_CHAIN
> +	select CPU_NO_EFFICIENT_FFS
>  
>  config SPARC32
>  	def_bool !64BIT

sparc64 have an efficient ffs implementation.
We use run-time patching to use the proper version
depending on the actual sparc cpu.

As this is determinded at config time, then let the
sparc cpu that has the efficient ffs benefit from this.

In other words - select CPU_NO_EFFICIENT_FFS only for SPARC32.

	Sam

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Subject: Re: [patch V4] lib: GCD: Use binary GCD algorithm instead of Euclidean
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From: Marc Kleine-Budde <mkl-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Newsgroups: gmane.linux.kernel.wireless.general,gmane.linux.network,gmane.linux.uml.devel,gmane.linux.kernel.firewire.devel,gmane.linux.drivers.rdma,gmane.linux.scsi,gmane.linux.can,gmane.linux.ports.parisc,gmane.linux.ports.arm.omap,gmane.linux.hams,gmane.linux.usb.general,gmane.org.freifunk.batman,gmane.linux.bluez.kernel
Subject: Re: [PATCH net-next 4/5] treewide: replace dev->trans_start update
 with helper
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From: Marc Kleine-Budde <mkl-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
To: Florian Westphal <fw-HFFVJYpyMKqzQB+pC5nmwQ@public.gmane.org>, netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
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Subject: Re: [PATCH net-next 4/5] treewide: replace dev->trans_start update
 with helper
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On 05/03/2016 04:33 PM, Florian Westphal wrote:
> Replace all trans_start updates with netif_trans_update helper.
> change was done via spatch:
>=20
> struct net_device *d;
> @@
> - d->trans_start =3D jiffies
> + netif_trans_update(d)
>=20
> Compile tested only.
>=20
> Cc: user-mode-linux-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> Cc: linux-xtensa-PjhNF2WwrV/0Sa2dR60CXw@public.gmane.org
> Cc: linux1394-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: MPT-FusionLinux.pdl-dY08KVG/lbpWk0Htik3J/w@public.gmane.org
> Cc: linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-can-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-hams-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org
> Cc: b.a.t.m.a.n-ZwoEplunGu2X36UT3dwllkB+6BGkLq7r@public.gmane.org
> Cc: linux-bluetooth-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Signed-off-by: Florian Westphal <fw-HFFVJYpyMKqzQB+pC5nmwQ@public.gmane.org>
> ---
>  Checkpatch complains about whitespace damage, but
>  this extra whitespace already exists before this patch.
>=20
>  drivers/net/can/mscan/mscan.c                          | 4 ++--
>  drivers/net/can/usb/ems_usb.c                          | 4 ++--
>  drivers/net/can/usb/esd_usb2.c                         | 4 ++--
>  drivers/net/can/usb/peak_usb/pcan_usb_core.c           | 4 ++--

> diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/msca=
n.c
> index e36b740..acb708f 100644
> --- a/drivers/net/can/mscan/mscan.c
> +++ b/drivers/net/can/mscan/mscan.c
> @@ -276,7 +276,7 @@ static netdev_tx_t mscan_start_xmit(struct sk_buff =
*skb, struct net_device *dev)
>  	out_8(&regs->cantflg, 1 << buf_id);
> =20
>  	if (!test_bit(F_TX_PROGRESS, &priv->flags))
> -		dev->trans_start =3D jiffies;
> +		netif_trans_update(dev);
> =20
>  	list_add_tail(&priv->tx_queue[buf_id].list, &priv->tx_head);
> =20
> @@ -469,7 +469,7 @@ static irqreturn_t mscan_isr(int irq, void *dev_id)=

>  			clear_bit(F_TX_PROGRESS, &priv->flags);
>  			priv->cur_pri =3D 0;
>  		} else {
> -			dev->trans_start =3D jiffies;
> +			netif_trans_update(dev);
>  		}
> =20
>  		if (!test_bit(F_TX_WAIT_ALL, &priv->flags))
> diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_us=
b.c
> index 3400fd1..71f0e79 100644
> --- a/drivers/net/can/usb/ems_usb.c
> +++ b/drivers/net/can/usb/ems_usb.c
> @@ -521,7 +521,7 @@ static void ems_usb_write_bulk_callback(struct urb =
*urb)
>  	if (urb->status)
>  		netdev_info(netdev, "Tx URB aborted (%d)\n", urb->status);
> =20
> -	netdev->trans_start =3D jiffies;
> +	netif_trans_update(netdev);
> =20
>  	/* transmission complete interrupt */
>  	netdev->stats.tx_packets++;
> @@ -835,7 +835,7 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buf=
f *skb, struct net_device *ne
>  			stats->tx_dropped++;
>  		}
>  	} else {
> -		netdev->trans_start =3D jiffies;
> +		netif_trans_update(netdev);
> =20
>  		/* Slow down tx path */
>  		if (atomic_read(&dev->active_tx_urbs) >=3D MAX_TX_URBS ||
> diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_u=
sb2.c
> index 113e64f..784a900 100644
> --- a/drivers/net/can/usb/esd_usb2.c
> +++ b/drivers/net/can/usb/esd_usb2.c
> @@ -480,7 +480,7 @@ static void esd_usb2_write_bulk_callback(struct urb=
 *urb)
>  	if (urb->status)
>  		netdev_info(netdev, "Tx URB aborted (%d)\n", urb->status);
> =20
> -	netdev->trans_start =3D jiffies;
> +	netif_trans_update(netdev);
>  }
> =20
>  static ssize_t show_firmware(struct device *d,
> @@ -820,7 +820,7 @@ static netdev_tx_t esd_usb2_start_xmit(struct sk_bu=
ff *skb,
>  		goto releasebuf;
>  	}
> =20
> -	netdev->trans_start =3D jiffies;
> +	netif_trans_update(netdev);
> =20
>  	/*
>  	 * Release our reference to this URB, the USB core will eventually fr=
ee
> diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net=
/can/usb/peak_usb/pcan_usb_core.c
> index 5a2e341..bfb91d8 100644
> --- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
> +++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
> @@ -274,7 +274,7 @@ static void peak_usb_write_bulk_callback(struct urb=
 *urb)
>  		netdev->stats.tx_bytes +=3D context->data_len;
> =20
>  		/* prevent tx timeout */
> -		netdev->trans_start =3D jiffies;
> +		netif_trans_update(netdev);
>  		break;
> =20
>  	default:
> @@ -373,7 +373,7 @@ static netdev_tx_t peak_usb_ndo_start_xmit(struct s=
k_buff *skb,
>  			stats->tx_dropped++;
>  		}
>  	} else {
> -		netdev->trans_start =3D jiffies;
> +		netif_trans_update(netdev);
> =20
>  		/* slow down tx path */
>  		if (atomic_read(&dev->active_tx_urbs) >=3D PCAN_USB_MAX_TX_URBS)

For the drivers/can part:

Acked-by: Marc Kleine-Budde <mkl-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>

regards,
Marc
--=20
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |


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Subject: [patch V4 02/31] bitops: Include generic parity.h in some
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From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>

Simply use the generic version.

Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [for avr32]
---
 arch/arc/include/asm/bitops.h      | 1 +
 arch/arm/include/asm/bitops.h      | 1 +
 arch/arm64/include/asm/bitops.h    | 1 +
 arch/avr32/include/asm/bitops.h    | 1 +
 arch/c6x/include/asm/bitops.h      | 1 +
 arch/cris/include/asm/bitops.h     | 1 +
 arch/frv/include/asm/bitops.h      | 1 +
 arch/h8300/include/asm/bitops.h    | 1 +
 arch/hexagon/include/asm/bitops.h  | 1 +
 arch/m32r/include/asm/bitops.h     | 1 +
 arch/m68k/include/asm/bitops.h     | 1 +
 arch/metag/include/asm/bitops.h    | 1 +
 arch/mn10300/include/asm/bitops.h  | 1 +
 arch/openrisc/include/asm/bitops.h | 1 +
 arch/parisc/include/asm/bitops.h   | 1 +
 arch/s390/include/asm/bitops.h     | 1 +
 arch/sh/include/asm/bitops.h       | 1 +
 arch/xtensa/include/asm/bitops.h   | 1 +
 18 files changed, 18 insertions(+)

diff --git a/arch/arc/include/asm/bitops.h b/arch/arc/include/asm/bitops.h
index 0352fb8..7967e47 100644
--- a/arch/arc/include/asm/bitops.h
+++ b/arch/arc/include/asm/bitops.h
@@ -370,6 +370,7 @@ static inline __attribute__ ((const)) int __ffs(unsigned long x)
 #define ffz(x)	__ffs(~(x))
 
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/lock.h>
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h
index e943e6c..99f28a6 100644
--- a/arch/arm/include/asm/bitops.h
+++ b/arch/arm/include/asm/bitops.h
@@ -313,6 +313,7 @@ static inline unsigned long __ffs(unsigned long x)
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #ifdef __ARMEB__
diff --git a/arch/arm64/include/asm/bitops.h b/arch/arm64/include/asm/bitops.h
index 9c19594..eac4965 100644
--- a/arch/arm64/include/asm/bitops.h
+++ b/arch/arm64/include/asm/bitops.h
@@ -44,6 +44,7 @@ extern int test_and_change_bit(int nr, volatile unsigned long *p);
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/non-atomic.h>
diff --git a/arch/avr32/include/asm/bitops.h b/arch/avr32/include/asm/bitops.h
index 910d537..9f4a2ce 100644
--- a/arch/avr32/include/asm/bitops.h
+++ b/arch/avr32/include/asm/bitops.h
@@ -298,6 +298,7 @@ static inline int ffs(unsigned long word)
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 extern unsigned long find_next_zero_bit_le(const void *addr,
diff --git a/arch/c6x/include/asm/bitops.h b/arch/c6x/include/asm/bitops.h
index f0ab012..94eb0d1 100644
--- a/arch/c6x/include/asm/bitops.h
+++ b/arch/c6x/include/asm/bitops.h
@@ -87,6 +87,7 @@ static inline int ffs(int x)
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/atomic.h>
diff --git a/arch/cris/include/asm/bitops.h b/arch/cris/include/asm/bitops.h
index 8062cb5..06bc246 100644
--- a/arch/cris/include/asm/bitops.h
+++ b/arch/cris/include/asm/bitops.h
@@ -36,6 +36,7 @@
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/lock.h>
 
diff --git a/arch/frv/include/asm/bitops.h b/arch/frv/include/asm/bitops.h
index 0df8e95..f2a7ee8 100644
--- a/arch/frv/include/asm/bitops.h
+++ b/arch/frv/include/asm/bitops.h
@@ -314,6 +314,7 @@ int __ilog2_u64(u64 n)
 
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/le.h>
diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h
index 05999ab..e392db2 100644
--- a/arch/h8300/include/asm/bitops.h
+++ b/arch/h8300/include/asm/bitops.h
@@ -172,6 +172,7 @@ static inline unsigned long __ffs(unsigned long word)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic.h>
diff --git a/arch/hexagon/include/asm/bitops.h b/arch/hexagon/include/asm/bitops.h
index 5e4a59b..2df614e 100644
--- a/arch/hexagon/include/asm/bitops.h
+++ b/arch/hexagon/include/asm/bitops.h
@@ -290,6 +290,7 @@ static inline unsigned long __fls(unsigned long word)
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic.h>
diff --git a/arch/m32r/include/asm/bitops.h b/arch/m32r/include/asm/bitops.h
index 86ba2b4..e3cf46b 100644
--- a/arch/m32r/include/asm/bitops.h
+++ b/arch/m32r/include/asm/bitops.h
@@ -259,6 +259,7 @@ static __inline__ int test_and_change_bit(int nr, volatile void * addr)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #endif /* __KERNEL__ */
diff --git a/arch/m68k/include/asm/bitops.h b/arch/m68k/include/asm/bitops.h
index b4a9b0d..fd673ea 100644
--- a/arch/m68k/include/asm/bitops.h
+++ b/arch/m68k/include/asm/bitops.h
@@ -519,6 +519,7 @@ static inline int __fls(int x)
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #endif /* __KERNEL__ */
 
diff --git a/arch/metag/include/asm/bitops.h b/arch/metag/include/asm/bitops.h
index 2671134..ad13087 100644
--- a/arch/metag/include/asm/bitops.h
+++ b/arch/metag/include/asm/bitops.h
@@ -118,6 +118,7 @@ static inline int test_and_change_bit(unsigned int bit,
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
diff --git a/arch/mn10300/include/asm/bitops.h b/arch/mn10300/include/asm/bitops.h
index fe6f8e2..60761b7 100644
--- a/arch/mn10300/include/asm/bitops.h
+++ b/arch/mn10300/include/asm/bitops.h
@@ -225,6 +225,7 @@ int ffs(int x)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
 #include <asm-generic/bitops/le.h>
 
diff --git a/arch/openrisc/include/asm/bitops.h b/arch/openrisc/include/asm/bitops.h
index 3003cda..8c97642 100644
--- a/arch/openrisc/include/asm/bitops.h
+++ b/arch/openrisc/include/asm/bitops.h
@@ -43,6 +43,7 @@
 #include <asm-generic/bitops/sched.h>
 #include <asm/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 
 #include <asm-generic/bitops/atomic.h>
diff --git a/arch/parisc/include/asm/bitops.h b/arch/parisc/include/asm/bitops.h
index 3f9406d..867ba10 100644
--- a/arch/parisc/include/asm/bitops.h
+++ b/arch/parisc/include/asm/bitops.h
@@ -211,6 +211,7 @@ static __inline__ int fls(int x)
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 8043f10..198eead 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -460,6 +460,7 @@ static inline int fls(int word)
 #include <asm-generic/bitops/ffz.h>
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h
index fc8e652..4bf0c35 100644
--- a/arch/sh/include/asm/bitops.h
+++ b/arch/sh/include/asm/bitops.h
@@ -86,6 +86,7 @@ static inline unsigned long ffz(unsigned long word)
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
diff --git a/arch/xtensa/include/asm/bitops.h b/arch/xtensa/include/asm/bitops.h
index 3f44fa2..981fa83 100644
--- a/arch/xtensa/include/asm/bitops.h
+++ b/arch/xtensa/include/asm/bitops.h
@@ -229,6 +229,7 @@ test_and_change_bit(unsigned int bit, volatile unsigned long *p)
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
 
 #include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/parity.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 
-- 
2.7.4

From - Thu Nov 08 21:38:53 2018
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Subject: Re: [patch V4 02/31] bitops: Include generic parity.h in some
 architectures' bitops.h
Date: Wed, 11 May 2016 12:06:01 +0200
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Approved: news@gmane.org
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To: zengzhaoxiu@163.com
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On Wed, May 11, 2016 at 05:06:17PM +0800, zengzhaoxiu@163.com wrote:
> From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
> 
> Simply use the generic version.
> 
> Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [for avr32]

For the CRIS part:

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com


From - Thu Nov 08 21:38:53 2018
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Subject: Re: [patch V4 02/31] bitops: Include generic parity.h in some
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Date: Wed, 11 May 2016 11:42:05 +0100
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On Wed, May 11, 2016 at 05:06:17PM +0800, zengzhaoxiu@163.com wrote:
> From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
> 
> Simply use the generic version.
> 
> Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [for avr32]
> ---
>  arch/arc/include/asm/bitops.h      | 1 +
>  arch/arm/include/asm/bitops.h      | 1 +
>  arch/arm64/include/asm/bitops.h    | 1 +
>  arch/avr32/include/asm/bitops.h    | 1 +
>  arch/c6x/include/asm/bitops.h      | 1 +
>  arch/cris/include/asm/bitops.h     | 1 +
>  arch/frv/include/asm/bitops.h      | 1 +
>  arch/h8300/include/asm/bitops.h    | 1 +
>  arch/hexagon/include/asm/bitops.h  | 1 +
>  arch/m32r/include/asm/bitops.h     | 1 +
>  arch/m68k/include/asm/bitops.h     | 1 +
>  arch/metag/include/asm/bitops.h    | 1 +
>  arch/mn10300/include/asm/bitops.h  | 1 +
>  arch/openrisc/include/asm/bitops.h | 1 +
>  arch/parisc/include/asm/bitops.h   | 1 +
>  arch/s390/include/asm/bitops.h     | 1 +
>  arch/sh/include/asm/bitops.h       | 1 +
>  arch/xtensa/include/asm/bitops.h   | 1 +

For arm64:

Acked-by: Catalin Marinas <catalin.marinas@arm.com>

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Subject: Re: [patch V4 02/31] bitops: Include generic parity.h in some
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On Wed, 2016-05-11 at 17:06 +0800, zengzhaoxiu@163.com wrote:
> From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
> 
> Simply use the generic version.
> 
> Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [for avr32]
> ---

For c6x:

Acked-by: Mark Salter <msalter@redhat.com>



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Subject: Re: [PATCH net-next 4/5] treewide: replace dev->trans_start update
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On 05/03/2016 10:33 AM, Florian Westphal wrote:
> Replace all trans_start updates with netif_trans_update helper.
> change was done via spatch:
>=20
> struct net_device *d;
> @@
> - d->trans_start =3D jiffies
> + netif_trans_update(d)
>=20
> Compile tested only.
>=20
> Cc: user-mode-linux-devel@lists.sourceforge.net
> Cc: linux-xtensa@linux-xtensa.org
> Cc: linux1394-devel@lists.sourceforge.net
> Cc: linux-rdma@vger.kernel.org
> Cc: netdev@vger.kernel.org
> Cc: MPT-FusionLinux.pdl@broadcom.com
> Cc: linux-scsi@vger.kernel.org
> Cc: linux-can@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-omap@vger.kernel.org
> Cc: linux-hams@vger.kernel.org
> Cc: linux-usb@vger.kernel.org
> Cc: linux-wireless@vger.kernel.org
> Cc: linux-s390@vger.kernel.org
> Cc: devel@driverdev.osuosl.org
> Cc: b.a.t.m.a.n@lists.open-mesh.org
> Cc: linux-bluetooth@vger.kernel.org
> Signed-off-by: Florian Westphal <fw@strlen.de>
> ---
>  Checkpatch complains about whitespace damage, but
>  this extra whitespace already exists before this patch.
>=20
>  drivers/infiniband/hw/nes/nes_nic.c                    | 2 +-
>  drivers/infiniband/ulp/ipoib/ipoib_cm.c                | 2 +-
>  drivers/infiniband/ulp/ipoib/ipoib_ib.c                | 2 +-

For InfiniBand bits,

Acked-by: Doug Ledford <dledford@redhat.com>

--=20
Doug Ledford <dledford@redhat.com>
              GPG KeyID: 0E572FDD



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> > I noticed on RP3440 and A500 that recent 4.4-rc* crashes on boot.
> 
> I've not seen it with 4.4-rc yet, but I've seen it on debian kernel 4.3.3:

This is still present in 4.6, just tested. All my pariscs are broken  
- A500, RP3410, RP3440. 4.3 is the latest working release for me. If 
4.3.3 is broken, it might be possible to bisect more easily.

sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 22
sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi host0: sym-2.2.3
scsi 0:0:0:0: Direct-Access     COMPAQ   BF07285A36       HPB7 PQ: 0 ANSI: 3
scsi target0:0:0: tagged command queuing enabled, command queue depth 16.
scsi target0:0:0: Beginning Domain Validation
scsi target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
scsi target0:0:0: Ending Domain Validation
random: nonblocking pool is initialized
sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 23
sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
sym1: SCSI BUS has been reset.
scsi host1: sym-2.2.3
bioset (67) used greatest stack depth: 13864 bytes left
bioset (82) used greatest stack depth: 13608 bytes left
mousedev: PS/2 mouse device common for all mice
sd 0:0:0:0: [sda] 142264000 512-byte logical blocks: (72.8 GB/67.8 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
NET: Registered protocol family 17
rtc-generic rtc-generic: setting system clock to 2016-05-16 20:41:06 UTC (1463431266)
 sda: sda1 sda2 sda3 sda4
sd 0:0:0:0: [sda] Attached SCSI disk
EXT4-fs (sda3): couldn't mount as ext3 due to feature incompatibilities
EXT4-fs (sda3): couldn't mount as ext2 due to feature incompatibilities
EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
VFS: Mounted root (ext4 filesystem) readonly on device 8:3.
devtmpfs: mounted
Freeing unused kernel memory: 1024K (0000000040100000 - 0000000040200000)
This architecture does not have kernel memory protection.
------------[ cut here ]------------
WARNING: CPU: 2 PID: 1 at block/blk-merge.c:462 blk_rq_map_sg+0x5d8/0x610
Modules linked in:
CPU: 2 PID: 1 Comm: init Not tainted 4.6.0 #85
task: 000000007fce8000 ti: 000000007fc3c000 task.ti: 000000007fc3c000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001111 Not tainted
r00-03  000000ff0806ff0f 000000007fc3d090 0000000000000000 000000007fc3d090
r04-07  00000000407c8d50 0000000000000000 0000000000000000 0000000000000120
r08-11  0000000000000000 0000000000000001 000000033f146c08 0000004080095e28
r12-15  0000000000001000 000000033f168000 0000000000000003 0000000000000012
r16-19  0000000000001000 000000033f146c08 000000033f146930 0000000000001000
r20-23  0000000000000000 0000000000015698 000000007fe2b800 0000000004040000
r24-27  0000000004040000 8fffdfe1c0000000 000000033f146c08 00000000407c8d50
r28-31  0000000000000001 0000000000001000 000000007fc3d1c0 0000000000000002
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040496340 0000000040496344
 IIR: 03ffe01f    ISR: 0000000010340800  IOR: 000003fc51946c08
 CPU:        2   CR30: 000000007fc3c000 CR31: ffffffffffffffff
 ORIG_R28: 000000007fc3d360
 IAOQ[0]: blk_rq_map_sg+0x5d8/0x610
 IAOQ[1]: blk_rq_map_sg+0x5dc/0x610
 RP(r2):           (null)
Backtrace:
 [<000000004056afc0>] scsi_init_sgtable+0xa0/0x130
 [<000000004056b0a4>] scsi_init_io+0x54/0x160
 [<000000004058ac08>] sd_init_command+0x68/0x708
 [<000000004056b2b4>] scsi_setup_cmnd+0x104/0x1a0
 [<000000004056be58>] scsi_queue_rq+0x868/0xa00
 [<000000004049c074>] __blk_mq_run_hw_queue+0x2fc/0x508
 [<000000004049bd4c>] blk_mq_run_hw_queue+0xdc/0x108
 [<000000004049d76c>] blk_mq_insert_requests+0x15c/0x190
 [<000000004049e6a4>] blk_mq_flush_plug_list+0x18c/0x1b8
 [<000000004048f4d4>] blk_flush_plug_list+0x104/0x2c0
 [<000000004048fa44>] blk_finish_plug+0x44/0x68
 [<00000000402f81b4>] __do_page_cache_readahead+0x29c/0x3d0
 [<00000000402e8a88>] filemap_fault+0x6f0/0x838
 [<00000000404067b8>] ext4_filemap_fault+0x58/0x90
 [<00000000403193f8>] __do_fault+0x78/0x180
 [<0000000040320504>] handle_mm_fault+0x134c/0x1ec0

---[ end trace 1e7388db767b0433 ]---
------------[ cut here ]------------
kernel BUG at drivers/scsi/scsi_lib.c:1097!
CPU: 2 PID: 1 Comm: init Tainted: G        W       4.6.0 #85
task: 000000007fce8000 ti: 000000007fc3c000 task.ti: 000000007fc3c000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001111 Tainted: G        W
r00-03  000000ff0806ff0f 000000007fc3d090 000000004056afc0 000000007fc3cff0
r04-07  00000000407c8d50 0000000000000001 000000033f146b48 000000033f146930
r08-11  000000007fdcb800 000000007fe28c00 0000000000012000 0000000040999660
r12-15  000000007fdcb800 000000033f146930 0000000000000000 000000007fdcb800
r16-19  0000000000000000 0000000000000158 000000033f10e120 0000000000001000
r20-23  0000000000000000 0000000000015698 000000007fe2b800 0000000004040000
r24-27  0000000004040000 8fffdfe1c0000000 000000033f146c08 00000000407c8d50
r28-31  0000000000000003 0000000000001000 000000007fc3d090 0000000000000002
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004056b030 000000004056b034
 IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000000000000
 CPU:        2   CR30: 000000007fc3c000 CR31: ffffffffffffffff
 ORIG_R28: 0000000000000000
 IAOQ[0]: scsi_init_sgtable+0x110/0x130
 IAOQ[1]: scsi_init_sgtable+0x114/0x130
 RP(r2): scsi_init_sgtable+0xa0/0x130
Backtrace:
 [<000000004056b0a4>] scsi_init_io+0x54/0x160
 [<000000004058ac08>] sd_init_command+0x68/0x708
 [<000000004056b2b4>] scsi_setup_cmnd+0x104/0x1a0
 [<000000004056be58>] scsi_queue_rq+0x868/0xa00
 [<000000004049c074>] __blk_mq_run_hw_queue+0x2fc/0x508
 [<000000004049bd4c>] blk_mq_run_hw_queue+0xdc/0x108
 [<000000004049d76c>] blk_mq_insert_requests+0x15c/0x190
 [<000000004049e6a4>] blk_mq_flush_plug_list+0x18c/0x1b8
 [<000000004048f4d4>] blk_flush_plug_list+0x104/0x2c0
 [<000000004048fa44>] blk_finish_plug+0x44/0x68
 [<00000000402f81b4>] __do_page_cache_readahead+0x29c/0x3d0
 [<00000000402e8a88>] filemap_fault+0x6f0/0x838
 [<00000000404067b8>] ext4_filemap_fault+0x58/0x90
 [<00000000403193f8>] __do_fault+0x78/0x180
 [<0000000040320504>] handle_mm_fault+0x134c/0x1ec0

CPU: 2 PID: 1 Comm: init Tainted: G        W       4.6.0 #85
Backtrace:
 [<0000000040216b58>] show_stack+0x20/0x38
 [<00000000404b8850>] dump_stack+0xa8/0x120
 [<0000000040216d2c>] die_if_kernel+0x19c/0x2b0
 [<0000000040217bf8>] handle_interruption+0x9b8/0x9e0

---[ end trace 1e7388db767b0434 ]---



-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:38:53 2018
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Subject: Re: parisc late boot crash in 4.4-rc, scsi-related
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On 2016-05-16 4:40 PM, Meelis Roos wrote:
>>> I noticed on RP3440 and A500 that recent 4.4-rc* crashes on boot.
>> >
>> >I've not seen it with 4.4-rc yet, but I've seen it on debian kernel 4.3.3:
> This is still present in 4.6, just tested. All my pariscs are broken
> - A500, RP3410, RP3440. 4.3 is the latest working release for me. If
> 4.3.3 is broken, it might be possible to bisect more easily.

I believe this is fixed in current gcc versions (4.9 and latter). It was 
exposed by a blk-merge
change.  It was fixed by this change:

2016-03-17  John David Anglin  <danglin@gcc.gnu.org>

         PR target/70188
         * config/pa/constraints.md: Revert 2015-02-13 change.  Use
         define_constraint for "Q" and "T" constraints.

However, this caused a different problem fixed here:

2016-04-05  John David Anglin  <danglin@gcc.gnu.org>

         * config/pa/predicates.md (integer_store_memory_operand): Accept
         REG+D operands with a large offset when reload_in_progress is true.
         (floating_point_store_memory_operand): Likewise.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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From - Thu Nov 08 21:38:53 2018
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Subject: Re: [patch V3] lib: GCD: add binary GCD algorithm
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Hi,

[auto build test ERROR on v4.6-rc5]
[cannot apply to next-20160519]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/zengzhaoxiu-163-com/lib-GCD-add-binary-GCD-algorithm/20160428-195527
config: mips-jz4740 (attached as .config)
compiler: mips-linux-gnu-gcc (Debian 5.3.1-8) 5.3.1 20160205
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=mips 

Note: the linux-review/zengzhaoxiu-163-com/lib-GCD-add-binary-GCD-algorithm/20160428-195527 HEAD 35e1a24e8fc3a5308b053ed3c744f02ec2a76820 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   In file included from arch/mips/include/asm/bitops.h:21:0,
                    from include/linux/bitops.h:36,
                    from include/linux/kernel.h:10,
                    from include/asm-generic/bug.h:13,
                    from arch/mips/include/asm/bug.h:41,
                    from include/linux/bug.h:4,
                    from include/linux/page-flags.h:9,
                    from kernel/bounds.c:9:
   arch/mips/include/asm/cpu-features.h:205:28: warning: "cpu_data" is not defined [-Wundef]
    # define cpu_has_mips32r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R6)
                               ^
   arch/mips/include/asm/cpu-features.h:241:5: note: in expansion of macro 'cpu_has_mips32r6'
        cpu_has_mips32r6 | cpu_has_mips64r1 | \
        ^
   arch/mips/include/asm/cpu-features.h:289:25: note: in expansion of macro 'cpu_has_mips_r'
    #define cpu_has_clo_clz cpu_has_mips_r
                            ^
   arch/mips/include/asm/cpu-features.h:291:6: note: in expansion of macro 'cpu_has_clo_clz'
    #if !cpu_has_clo_clz
         ^
>> arch/mips/include/asm/cpu-features.h:205:36: error: token "[" is not valid in preprocessor expressions
    # define cpu_has_mips32r6 (cpu_data[0].isa_level & MIPS_CPU_ISA_M32R6)
                                       ^
   arch/mips/include/asm/cpu-features.h:241:5: note: in expansion of macro 'cpu_has_mips32r6'
        cpu_has_mips32r6 | cpu_has_mips64r1 | \
        ^
   arch/mips/include/asm/cpu-features.h:289:25: note: in expansion of macro 'cpu_has_mips_r'
    #define cpu_has_clo_clz cpu_has_mips_r
                            ^
   arch/mips/include/asm/cpu-features.h:291:6: note: in expansion of macro 'cpu_has_clo_clz'
    #if !cpu_has_clo_clz
         ^
   make[2]: *** [kernel/bounds.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

vim +205 arch/mips/include/asm/cpu-features.h

0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  199  # define cpu_has_mips32r1	(cpu_data[0].isa_level & MIPS_CPU_ISA_M32R1)
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  200  #endif
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  201  #ifndef cpu_has_mips32r2
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  202  # define cpu_has_mips32r2	(cpu_data[0].isa_level & MIPS_CPU_ISA_M32R2)
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  203  #endif
34c56fc1 arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  204  #ifndef cpu_has_mips32r6
34c56fc1 arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13 @205  # define cpu_has_mips32r6	(cpu_data[0].isa_level & MIPS_CPU_ISA_M32R6)
34c56fc1 arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  206  #endif
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  207  #ifndef cpu_has_mips64r1
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  208  # define cpu_has_mips64r1	(cpu_data[0].isa_level & MIPS_CPU_ISA_M64R1)
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  209  #endif
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  210  #ifndef cpu_has_mips64r2
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  211  # define cpu_has_mips64r2	(cpu_data[0].isa_level & MIPS_CPU_ISA_M64R2)
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  212  #endif
34c56fc1 arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  213  #ifndef cpu_has_mips64r6
34c56fc1 arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  214  # define cpu_has_mips64r6	(cpu_data[0].isa_level & MIPS_CPU_ISA_M64R6)
34c56fc1 arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  215  #endif
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  216  
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  217  /*
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  218   * Shortcuts ...
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  219   */
08a07904 arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  220  #define cpu_has_mips_2_3_4_5	(cpu_has_mips_2 | cpu_has_mips_3_4_5)
08a07904 arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  221  #define cpu_has_mips_3_4_5	(cpu_has_mips_3 | cpu_has_mips_4_5)
08a07904 arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  222  #define cpu_has_mips_4_5	(cpu_has_mips_4 | cpu_has_mips_5)
08a07904 arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  223  
08a07904 arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  224  #define cpu_has_mips_2_3_4_5_r	(cpu_has_mips_2 | cpu_has_mips_3_4_5_r)
08a07904 arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  225  #define cpu_has_mips_3_4_5_r	(cpu_has_mips_3 | cpu_has_mips_4_5_r)
08a07904 arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  226  #define cpu_has_mips_4_5_r	(cpu_has_mips_4 | cpu_has_mips_5_r)
08a07904 arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  227  #define cpu_has_mips_5_r	(cpu_has_mips_5 | cpu_has_mips_r)
08a07904 arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  228  
2d83fea7 arch/mips/include/asm/cpu-features.h Maciej W. Rozycki 2015-04-03  229  #define cpu_has_mips_3_4_5_64_r2_r6					\
2d83fea7 arch/mips/include/asm/cpu-features.h Maciej W. Rozycki 2015-04-03  230  				(cpu_has_mips_3 | cpu_has_mips_4_5_64_r2_r6)
2d83fea7 arch/mips/include/asm/cpu-features.h Maciej W. Rozycki 2015-04-03  231  #define cpu_has_mips_4_5_64_r2_r6					\
2d83fea7 arch/mips/include/asm/cpu-features.h Maciej W. Rozycki 2015-04-03  232  				(cpu_has_mips_4_5 | cpu_has_mips64r1 |	\
2d83fea7 arch/mips/include/asm/cpu-features.h Maciej W. Rozycki 2015-04-03  233  				 cpu_has_mips_r2 | cpu_has_mips_r6)
08a07904 arch/mips/include/asm/cpu-features.h Ralf Baechle      2014-04-19  234  
34c56fc1 arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  235  #define cpu_has_mips32	(cpu_has_mips32r1 | cpu_has_mips32r2 | cpu_has_mips32r6)
34c56fc1 arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  236  #define cpu_has_mips64	(cpu_has_mips64r1 | cpu_has_mips64r2 | cpu_has_mips64r6)
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  237  #define cpu_has_mips_r1 (cpu_has_mips32r1 | cpu_has_mips64r1)
0401572a include/asm-mips/cpu-features.h      Ralf Baechle      2005-12-09  238  #define cpu_has_mips_r2 (cpu_has_mips32r2 | cpu_has_mips64r2)
34c56fc1 arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  239  #define cpu_has_mips_r6	(cpu_has_mips32r6 | cpu_has_mips64r6)
c46b302b arch/mips/include/asm/cpu-features.h Ralf Baechle      2008-10-28  240  #define cpu_has_mips_r	(cpu_has_mips32r1 | cpu_has_mips32r2 | \
34c56fc1 arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13 @241  			 cpu_has_mips32r6 | cpu_has_mips64r1 | \
34c56fc1 arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  242  			 cpu_has_mips64r2 | cpu_has_mips64r6)
34c56fc1 arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  243  
34c56fc1 arch/mips/include/asm/cpu-features.h Leonid Yegoshin   2014-11-13  244  /* MIPSR2 and MIPSR6 have a lot of similarities */

:::::: The code at line 205 was first introduced by commit
:::::: 34c56fc1c167facc375d927687df0a3891d164ac MIPS: asm: cpu: Add MIPSR6 ISA definitions

:::::: TO: Leonid Yegoshin <Leonid.Yegoshin-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
:::::: CC: Markos Chandras <markos.chandras-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From: Andrea Gelmini <andrea.gelmini@gelma.net>
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Subject: [PATCH 0206/1529] Fix typo
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Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/include/asm/eisa_eeprom.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/include/asm/eisa_eeprom.h b/arch/parisc/include/asm/eisa_eeprom.h
index 8ce8b85..5637ac9 100644
--- a/arch/parisc/include/asm/eisa_eeprom.h
+++ b/arch/parisc/include/asm/eisa_eeprom.h
@@ -99,7 +99,7 @@ struct eeprom_eisa_slot_info
 #define HPEE_MEMORY_DECODE_24BITS 0x04
 #define HPEE_MEMORY_DECODE_32BITS 0x08
 /* byte 2 and 3 are a 16bit LE value
- * containging the memory size in kilobytes */
+ * containing the memory size in kilobytes */
 /* byte 4,5,6 are a 24bit LE value
  * containing the memory base address */
 
@@ -135,7 +135,7 @@ struct eeprom_eisa_slot_info
 #define HPEE_PORT_SHARED    0x40
 #define HPEE_PORT_MORE      0x80
 /* byte 1 and 2 is a 16bit LE value
- * conating the start port number */
+ * containing the start port number */
 
 #define HPEE_PORT_INIT_MAX_LEN     60 /* in bytes here */
 /* port init entry byte 0 */
-- 
2.8.2.534.g1f66975

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From: Andrea Gelmini <andrea.gelmini@gelma.net>
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Subject: [PATCH 0207/1529] Fix typo
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Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/include/asm/ldcw.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/include/asm/ldcw.h b/arch/parisc/include/asm/ldcw.h
index 8121aa6..8be707e 100644
--- a/arch/parisc/include/asm/ldcw.h
+++ b/arch/parisc/include/asm/ldcw.h
@@ -40,7 +40,7 @@
    memory to indicate to the compiler that the assembly code reads
    or writes to items other than those listed in the input and output
    operands.  This may pessimize the code somewhat but __ldcw is
-   usually used within code blocks surrounded by memory barriors.  */
+   usually used within code blocks surrounded by memory barriers.  */
 #define __ldcw(a) ({						\
 	unsigned __ret;						\
 	__asm__ __volatile__(__LDCW " 0(%1),%0"			\
-- 
2.8.2.534.g1f66975

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Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 0208/1529] Fix typo
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Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/include/uapi/asm/pdc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/include/uapi/asm/pdc.h b/arch/parisc/include/uapi/asm/pdc.h
index 702498f..0609ff1 100644
--- a/arch/parisc/include/uapi/asm/pdc.h
+++ b/arch/parisc/include/uapi/asm/pdc.h
@@ -59,7 +59,7 @@
 #define PDC_MODEL_GET_BOOT__OP	8	/* returns boot test options	*/
 #define PDC_MODEL_SET_BOOT__OP	9	/* set boot test options	*/
 
-#define PA89_INSTRUCTION_SET	0x4	/* capatibilies returned	*/
+#define PA89_INSTRUCTION_SET	0x4	/* capabilities returned	*/
 #define PA90_INSTRUCTION_SET	0x8
 
 #define PDC_CACHE	5		/* return/set cache (& TLB) info*/
-- 
2.8.2.534.g1f66975

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Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 0209/1529] Fix typo
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Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/math-emu/fpu.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/math-emu/fpu.h b/arch/parisc/math-emu/fpu.h
index 0af5c3c..46eb90e 100644
--- a/arch/parisc/math-emu/fpu.h
+++ b/arch/parisc/math-emu/fpu.h
@@ -63,9 +63,9 @@
 #define EMULATION_VERSION 4
 
 /*
- * The only was to differeniate between TIMEX and ROLEX (or PCX-S and PCX-T)
- * is thorough the potential type field from the PDC_MODEL call.  The 
- * following flags are used at assist this differeniation.
+ * The only was to differentiate between TIMEX and ROLEX (or PCX-S and PCX-T)
+ * is thorough the potential type field from the PDC_MODEL call.  The
+ * following flags are used at assist this differentiation.
  */
 
 #define ROLEX_POTENTIAL_KEY_FLAGS	PDC_MODEL_CPU_KEY_WORD_TO_IO
-- 
2.8.2.534.g1f66975

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From - Thu Nov 08 21:38:54 2018
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From: Andrea Gelmini <andrea.gelmini@gelma.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 0210/1529] Fix typo
Date: Sat, 21 May 2016 14:03:32 +0200
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Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
---
 arch/parisc/math-emu/fpudispatch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/math-emu/fpudispatch.c b/arch/parisc/math-emu/fpudispatch.c
index 673b73e..18df123 100644
--- a/arch/parisc/math-emu/fpudispatch.c
+++ b/arch/parisc/math-emu/fpudispatch.c
@@ -184,7 +184,7 @@ static void parisc_linux_get_fpu_type(u_int fpregs[])
 
 /*
  * this routine will decode the excepting floating point instruction and
- * call the approiate emulation routine.
+ * call the appropriate emulation routine.
  * It is called by decode_fpu with the following parameters:
  * fpudispatch(current_ir, unimplemented_code, 0, &Fpu_register)
  * where current_ir is the instruction to be emulated,
-- 
2.8.2.534.g1f66975

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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH: parisc] Update futex.h
Date: Sat, 21 May 2016 15:03:54 -0400
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The attached patch updates the parisc version of futex.h to match the =
current generic implementation
except for the spinlock code.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
---


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diff --git a/arch/parisc/include/asm/futex.h =
b/arch/parisc/include/asm/futex.h
index 49df148..ac8bd58 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -35,70 +35,57 @@ static inline int
 futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 {
 	unsigned long int flags;
-	u32 val;
 	int op =3D (encoded_op >> 28) & 7;
 	int cmp =3D (encoded_op >> 24) & 15;
 	int oparg =3D (encoded_op << 8) >> 20;
 	int cmparg =3D (encoded_op << 20) >> 20;
-	int oldval =3D 0, ret;
+	int oldval, ret;
+	u32 tmp;
+
 	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
 		oparg =3D 1 << oparg;
=20
 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(*uaddr)))
 		return -EFAULT;
=20
+	_futex_spin_lock_irqsave(uaddr, &flags);
 	pagefault_disable();
=20
-	_futex_spin_lock_irqsave(uaddr, &flags);
+	ret =3D -EFAULT;
+	if (unlikely(get_user(oldval, uaddr) !=3D 0))
+		goto out_pagefault_enable;
+
+	ret =3D 0;
+	tmp =3D oldval;
=20
 	switch (op) {
 	case FUTEX_OP_SET:
-		/* *(int *)UADDR2 =3D OPARG; */
-		ret =3D get_user(oldval, uaddr);
-		if (!ret)
-			ret =3D put_user(oparg, uaddr);
+		tmp =3D oparg;
 		break;
 	case FUTEX_OP_ADD:
-		/* *(int *)UADDR2 +=3D OPARG; */
-		ret =3D get_user(oldval, uaddr);
-		if (!ret) {
-			val =3D oldval + oparg;
-			ret =3D put_user(val, uaddr);
-		}
+		tmp +=3D oparg;
 		break;
 	case FUTEX_OP_OR:
-		/* *(int *)UADDR2 |=3D OPARG; */
-		ret =3D get_user(oldval, uaddr);
-		if (!ret) {
-			val =3D oldval | oparg;
-			ret =3D put_user(val, uaddr);
-		}
+		tmp |=3D oparg;
 		break;
 	case FUTEX_OP_ANDN:
-		/* *(int *)UADDR2 &=3D ~OPARG; */
-		ret =3D get_user(oldval, uaddr);
-		if (!ret) {
-			val =3D oldval & ~oparg;
-			ret =3D put_user(val, uaddr);
-		}
+		tmp &=3D ~oparg;
 		break;
 	case FUTEX_OP_XOR:
-		/* *(int *)UADDR2 ^=3D OPARG; */
-		ret =3D get_user(oldval, uaddr);
-		if (!ret) {
-			val =3D oldval ^ oparg;
-			ret =3D put_user(val, uaddr);
-		}
+		tmp ^=3D oparg;
 		break;
 	default:
 		ret =3D -ENOSYS;
 	}
=20
-	_futex_spin_unlock_irqrestore(uaddr, &flags);
+	if (ret =3D=3D 0 && unlikely(put_user(tmp, uaddr) !=3D 0))
+		ret =3D -EFAULT;
=20
+out_pagefault_enable:
 	pagefault_enable();
+	_futex_spin_unlock_irqrestore(uaddr, &flags);
=20
-	if (!ret) {
+	if (ret =3D=3D 0) {
 		switch (cmp) {
 		case FUTEX_OP_CMP_EQ: ret =3D (oldval =3D=3D cmparg); =
break;
 		case FUTEX_OP_CMP_NE: ret =3D (oldval !=3D cmparg); =
break;
@@ -112,12 +99,10 @@ futex_atomic_op_inuser (int encoded_op, u32 __user =
*uaddr)
 	return ret;
 }
=20
-/* Non-atomic version */
 static inline int
 futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 			      u32 oldval, u32 newval)
 {
-	int ret;
 	u32 val;
 	unsigned long flags;
=20
@@ -137,17 +122,20 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 =
__user *uaddr,
 	 */
=20
 	_futex_spin_lock_irqsave(uaddr, &flags);
+	if (unlikely(get_user(val, uaddr) !=3D 0)) {
+		_futex_spin_unlock_irqrestore(uaddr, &flags);
+		return -EFAULT;
+	}
=20
-	ret =3D get_user(val, uaddr);
-
-	if (!ret && val =3D=3D oldval)
-		ret =3D put_user(newval, uaddr);
+	if (val =3D=3D oldval && unlikely(put_user(newval, uaddr) !=3D =
0)) {
+		_futex_spin_unlock_irqrestore(uaddr, &flags);
+		return -EFAULT;
+	}
=20
 	*uval =3D val;

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From: Jeroen Roovers <jer@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH 0209/1529] Fix typo
Date: Sun, 22 May 2016 00:13:03 +0200
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On Sat, 21 May 2016 14:03:22 +0200
Andrea Gelmini <andrea.gelmini@gelma.net> wrote:

> + * The only was to differentiate between TIMEX and ROLEX (or PCX-S
> and PCX-T)
> + * is thorough the potential type field from the PDC_MODEL call.  The
> + * following flags are used at assist this differentiation.
>   */

And now it still doesn't make sense.

was -> way
thorough -> through
at assist -> ???



Regards,
     jer
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Depending on config options we will need to use a long jump to reach
ftrace_return_to_handler().  Additionally only compile the
parisc_return_to_handler code when CONFIG_FUNCTION_GRAPH_TRACER is set.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 2b2b0df..baa3d9d 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -2019,6 +2019,7 @@ ftrace_stub:
 	.procend
 ENDPROC(mcount)
 
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
 	.align 8
 	.globl return_to_handler
 	.type  return_to_handler, @function
@@ -2040,11 +2041,17 @@ parisc_return_to_handler:
 #endif
 
 	/* call ftrace_return_to_handler(0) */
+	.import ftrace_return_to_handler,code
+	load32 ftrace_return_to_handler,%ret0
+	load32 .Lftrace_ret,%r2
 #ifdef CONFIG_64BIT
 	ldo -16(%sp),%ret1		/* Reference param save area */
+	bve	(%ret0)
+#else
+	bv	%r0(%ret0)
 #endif
-	BL ftrace_return_to_handler,%r2
 	ldi 0,%r26
+.Lftrace_ret:
 	copy %ret0,%rp
 
 	/* restore original return values */
@@ -2062,6 +2069,8 @@ parisc_return_to_handler:
 	.procend
 ENDPROC(return_to_handler)
 
+#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
+
 #endif	/* CONFIG_FUNCTION_TRACER */
 
 #ifdef CONFIG_IRQSTACKS
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On Sat, Apr 30, 2016 at 4:51 PM, Helge Deller <deller@gmx.de> wrote:
> Hi Paul,
>
> On 15.04.2016 17:11, Helge Deller wrote:
>> This patch (v3) adds support for the parisc and parisc64 architectures
>> to libseccomp.
>
> Linux kernel 4.5.2-1 with full seccomp support for parisc/hppa is
> now publically available in debian:
> https://buildd.debian.org/status/package.php?p=linux&suite=sid
>
> Any chance to get this patch (v3) applied to the libseccomp git tree now ?

Hi Helge,

I apologize for the delay, but I finally got around to merging your
code and noticed a problem: you're missing the parisc enablement code
in src/arch-syscall-check.c which has hidden a number of issues with
the parsic{64} syscall table (run 'make check').  Could you add the
missing code to arch-syscall-check.c and update the syscall table?

Thanks,
-Paul

>> I didn't split up the patch, because it's pretty trivial.
>> Those parisc-specific files gets added:
>>  src/arch-parisc-syscalls.c
>>  src/arch-parisc.c
>>  src/arch-parisc.h
>>  src/arch-parisc64.c
>>
>> All other changes are trivial because they simply add parisc-specific
>> case statements in variouse switch statements.
>>
>> I did ran a "make check" on parisc and all testcases suceeded.
>> All live testcases succeed as well when running "./regression -T live".
>>
>> The patch applies cleanly to current libseccomp git head.
>>
>> Changes between v2 and v1 of this patch:
>> - Enabled seccomp mode 2 regression tests on parisc. Kernel support for hppa
>>   was added in kernel 4.6-rc1 and backported into the kernel v4.5.2 stable
>>   series.
>>
>> Changes between v3 and v2 of this patch:
>> - Stipped out patch which reports if a check was skipped because valgrind
>>   isn't installed.
>> - Added tuxcall pseudo syscall for 19-sim-missing_syscalls testcase
>> - Added sysmips pseudo syscall for 29-sim-pseudo_syscall testcase
>>
>> Thanks,
>> Helge
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diffstat:
>>  include/seccomp.h.in              |    6
>>  src/Makefile.am                   |    2
>>  src/arch-parisc-syscalls.c        |  424 ++++++++++++++++++++++++++++++++++++++
>>  src/arch-parisc.c                 |   22 +
>>  src/arch-parisc.h                 |   38 +++
>>  src/arch-parisc64.c               |   22 +
>>  src/arch-syscall-dump.c           |    5
>>  src/arch.c                        |   13 +
>>  src/gen_pfc.c                     |    4
>>  src/python/libseccomp.pxd         |    2
>>  src/python/seccomp.pyx            |    8
>>  tests/26-sim-arch_all_be_basic.c  |    6
>>  tests/26-sim-arch_all_be_basic.py |    2
>>  tests/regression                  |    3
>>  tools/scmp_arch_detect.c          |    6
>>  tools/scmp_bpf_sim.c              |    4
>>  tools/util.c                      |    4
>>  17 files changed, 570 insertions(+), 1 deletion(-)

-- 
paul moore
security @ redhat

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Xref: news.gmane.org gmane.linux.ports.parisc:26783 gmane.linux.kernel:2227840
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Hi Linus,

Please pull the parisc architecture patches for the kernel 4.7 merge window from 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.7-1

Changes in this patch set:

- Add native high-resolution timing code for sched_clock() and other timing
  functions based on the processor internal cr16 cycle counters
- Add syscall tracepoint support
- Add regset support
- Speed up get_user() and put_user() functions
- Updated futex.h to match generic implementation - by John David Anglin
- A few smaller ftrace build fixes
- Fixed thuge-gen kernel self test to utilize architectured MAP_HUGETLB value
- Added parisc architecture to seccomp_bpf kernel self test
- Various typo fixes - by Andrea Gelmini

Thanks,
Helge

----------------------------------------------------------------
Andrea Gelmini (4):
      parisc: Fix typo in pdc.h
      parisc: Fix typo in ldcw.h
      parisc: Fix typos in eisa_eeprom.h
      parisc: Fix typo in fpudispatch.c

Helge Deller (9):
      parisc: Add syscall tracepoint support
      parisc: Simplify and speed up get_user() and put_user()
      parisc: Add 64bit get_user() and put_user() for 32bit kernel
      parisc: Add ARCH_TRACEHOOK and regset support
      parisc: Add native high-resolution sched_clock() implementation
      selftests/thuge-gen: Use platform specific MAP_HUGETLB value
      parisc: Merge ftrace C-helper and assembler functions into .text.hot section
      parisc: Use long jump to reach ftrace_return_to_handler()
      parisc: Whitespace cleanups in unistd.h

John David Anglin (1):
      parisc: Update futex.h to match generic implementation

 arch/parisc/Kconfig                           |   3 +
 arch/parisc/include/asm/cmpxchg.h             |   9 +-
 arch/parisc/include/asm/eisa_eeprom.h         |   4 +-
 arch/parisc/include/asm/ftrace.h              |   2 +
 arch/parisc/include/asm/futex.h               |  70 ++---
 arch/parisc/include/asm/ldcw.h                |   2 +-
 arch/parisc/include/asm/syscall.h             |   9 +
 arch/parisc/include/asm/thread_info.h         |   4 +-
 arch/parisc/include/asm/uaccess.h             |  91 +++----
 arch/parisc/include/uapi/asm/pdc.h            |   2 +-
 arch/parisc/include/uapi/asm/ptrace.h         |  48 ++++
 arch/parisc/include/uapi/asm/unistd.h         |  34 ++-
 arch/parisc/kernel/entry.S                    |  13 +-
 arch/parisc/kernel/ftrace.c                   |   7 +-
 arch/parisc/kernel/ptrace.c                   | 368 +++++++++++++++++++++++++-
 arch/parisc/kernel/syscall.S                  |   1 +
 arch/parisc/kernel/time.c                     |  63 ++++-
 arch/parisc/lib/bitops.c                      |   6 +-
 arch/parisc/math-emu/fpudispatch.c            |   2 +-
 tools/testing/selftests/seccomp/seccomp_bpf.c |   8 +-
 tools/testing/selftests/vm/thuge-gen.c        |   2 +
 21 files changed, 610 insertions(+), 138 deletions(-)
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Xref: news.gmane.org gmane.comp.lib.libseccomp.general:1367 gmane.linux.ports.parisc:26784
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* Paul Moore <pmoore@redhat.com>:
> On Sat, Apr 30, 2016 at 4:51 PM, Helge Deller <deller@gmx.de> wrote:
> > On 15.04.2016 17:11, Helge Deller wrote:
> >> This patch (v3) adds support for the parisc and parisc64 architectures
> >> to libseccomp.
> >
> > Linux kernel 4.5.2-1 with full seccomp support for parisc/hppa is
> > now publically available in debian:
> > https://buildd.debian.org/status/package.php?p=linux&suite=sid
> >
> > Any chance to get this patch (v3) applied to the libseccomp git tree now ?
> 
> Hi Helge,
> 
> I apologize for the delay, but I finally got around to merging your
> code and noticed a problem: you're missing the parisc enablement code
> in src/arch-syscall-check.c which has hidden a number of issues with
> the parsic{64} syscall table (run 'make check').  Could you add the
> missing code to arch-syscall-check.c and update the syscall table?

Indeed. I missed that.
Below is the updated patch (v4) which addresses this issue.

It survived all "make check" tests on x64_64 and parisc, as well as the
live regression tests on parisc.

Thanks,
Helge

xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

This patch (v4) adds support for the parisc and parisc64 architectures
to libseccomp.

I didn't split up the patch, because it's pretty trivial.
Those parisc-specific files gets added:
 src/arch-parisc-syscalls.c
 src/arch-parisc.c
 src/arch-parisc.h
 src/arch-parisc64.c

All other changes are trivial because they simply add parisc-specific
case statements in variouse switch statements.

I did ran a "make check" on x86-64 and parisc and all testcases succeeded.
All live testcases succeed as well when running "./regression -T live".

The patch applies cleanly to current libseccomp git head.

Changes between v4 and v3 of this patch:
- Added parisc arch to arch-syscall-check.c and fixup syscall table as
  needed
- Fixed copyright notices in parisc files as suggested by Mike Frysinger

Changes between v3 and v2 of this patch:
- Stripped out patch which reports if a check was skipped because
  valgrind isn't installed.
- Added tuxcall pseudo syscall for 19-sim-missing_syscalls testcase
- Added sysmips pseudo syscall for 29-sim-pseudo_syscall testcase

Changes between v2 and v1 of this patch:
- Enabled seccomp mode 2 regression tests on parisc. Kernel support for
  hppa was added in kernel 4.6-rc1 and backported into the kernel v4.5.2
  stable series.

Thanks,
Helge

Signed-off-by: Helge Deller <deller@gmx.de>



diffstat:
 include/seccomp.h.in              |    6 
 src/Makefile.am                   |    2 
 src/arch-parisc-syscalls.c        |  499 ++++++++++++++++++++++++++++++++++++++
 src/arch-parisc.c                 |   22 +
 src/arch-parisc.h                 |   38 ++
 src/arch-parisc64.c               |   22 +
 src/arch-syscall-check.c          |   11 
 src/arch-syscall-dump.c           |    5 
 src/arch.c                        |   13 
 src/gen_pfc.c                     |    4 
 src/python/libseccomp.pxd         |    2 
 src/python/seccomp.pyx            |    8 
 tests/26-sim-arch_all_be_basic.c  |    6 
 tests/26-sim-arch_all_be_basic.py |    2 
 tests/regression                  |    3 
 tools/scmp_arch_detect.c          |    6 
 tools/scmp_bpf_sim.c              |    4 
 tools/util.c                      |    4 
 18 files changed, 656 insertions(+), 1 deletion(-)


diff --git a/include/seccomp.h.in b/include/seccomp.h.in
index 6bf6751..5b9057f 100644
--- a/include/seccomp.h.in
+++ b/include/seccomp.h.in
@@ -185,6 +185,12 @@ struct scmp_arg_cmp {
 #define SCMP_ARCH_S390X		AUDIT_ARCH_S390X
 
 /**
+ * The PA-RISC hppa architecture tokens
+ */
+#define SCMP_ARCH_PARISC	AUDIT_ARCH_PARISC
+#define SCMP_ARCH_PARISC64	AUDIT_ARCH_PARISC64
+
+/**
  * Convert a syscall name into the associated syscall number
  * @param x the syscall name
  */
diff --git a/src/Makefile.am b/src/Makefile.am
index c2d805e..dcc79d9 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -35,6 +35,8 @@ SOURCES_ALL = \
 	arch-mips.h arch-mips.c arch-mips-syscalls.c \
 	arch-mips64.h arch-mips64.c arch-mips64-syscalls.c \
 	arch-mips64n32.h arch-mips64n32.c arch-mips64n32-syscalls.c \
+	arch-parisc.h arch-parisc.c arch-parisc-syscalls.c \
+	arch-parisc64.h arch-parisc64.c \
 	arch-ppc.h arch-ppc.c arch-ppc-syscalls.c \
 	arch-ppc64.h arch-ppc64.c arch-ppc64-syscalls.c \
 	arch-s390.h arch-s390.c arch-s390-syscalls.c \
diff --git a/src/arch-parisc-syscalls.c b/src/arch-parisc-syscalls.c
new file mode 100644
index 0000000..2827bb5
--- /dev/null
+++ b/src/arch-parisc-syscalls.c
@@ -0,0 +1,499 @@
+/*
+ * Copyright (c) 2016 Helge Deller <deller@gmx.de>
+ * Author: Helge Deller <deller@gmx.de>
+ */
+
+#include <string.h>
+
+#include <seccomp.h>
+
+#include "arch.h"
+#include "arch-parisc.h"
+
+/* NOTE: based on Linux 4.5-rc4 */
+const struct arch_syscall_def parisc_syscall_table[] = { \
+	{ "_llseek",	140 },
+	{ "_newselect",	142 },
+	{ "_sysctl",	149 },
+	{ "accept",	35 },
+	{ "accept4",	320 },
+	{ "access",	33 },
+	{ "acct",	51 },
+	{ "add_key",	264 },
+	{ "adjtimex",	124 },
+	{ "afs_syscall",137 },
+	{ "alarm",	27 },
+	{ "arm_fadvise64_64", __PNR_arm_fadvise64_64 },
+	{ "arm_sync_file_range", __PNR_arm_sync_file_range },
+	{ "arch_prctl", __PNR_arch_prctl },
+	{ "bdflush",	134 },
+	{ "bind",	22 },
+	{ "bpf",	341 },
+	{ "break",	__PNR_break },
+	{ "breakpoint", __PNR_breakpoint },
+	{ "brk",	45 },
+	{ "cachectl",	__PNR_cachectl },
+	{ "cacheflush",	__PNR_cacheflush },
+	{ "capget",	106 },
+	{ "capset",	107 },
+	{ "chdir",	12 },
+	{ "chmod",	15 },
+	{ "chown",	180 },
+	{ "chown32",	__PNR_chown32 },
+	{ "chroot",	61 },
+	{ "clock_adjtime",	324 },
+	{ "clock_getres",	257 },
+	{ "clock_gettime",	256 },
+	{ "clock_nanosleep",	258 },
+	{ "clock_settime",	255 },
+	{ "clone",	120 },
+	{ "close",	6 },
+	{ "connect",	31 },
+	{ "copy_file_range", 346 },
+	{ "creat",	8 },
+	{ "create_module",	127 },
+	{ "delete_module",	129 },
+	{ "dup",	41 },
+	{ "dup2",	63 },
+	{ "dup3",	312 },
+	{ "epoll_create",	224 },
+	{ "epoll_create1",	311 },
+	{ "epoll_ctl",	225 },
+	{ "epoll_ctl_old", __PNR_epoll_ctl_old },
+	{ "epoll_pwait",	297 },
+	{ "epoll_wait",	226 },
+	{ "epoll_wait_old", __PNR_epoll_wait_old },
+	{ "eventfd",	304 },
+	{ "eventfd2",	310 },
+	{ "execve",	11 },
+	{ "execveat",	342 },
+	{ "exit",	1 },
+	{ "exit_group",	222 },
+	{ "faccessat",	287 },
+	{ "fadvise64",	__PNR_fadvise64 },
+	{ "fadvise64_64",	236 },
+	{ "fallocate",	305 },
+	{ "fanotify_init",	322 },
+	{ "fanotify_mark",	323 },
+	{ "fchdir",	133 },
+	{ "fchmod",	94 },
+	{ "fchmodat",	286 },
+	{ "fchown",	95 },
+	{ "fchown32",	__PNR_fchown32 },
+	{ "fchownat",	278 },
+	{ "fcntl",	55 },
+	{ "fcntl64",	202 },
+	{ "fdatasync",	148 },
+	{ "fgetxattr",	243 },
+	{ "finit_module",	333 },
+	{ "flistxattr",	246 },
+	{ "flock",	143 },
+	{ "fork",	2 },
+	{ "fremovexattr",	249 },
+	{ "fsetxattr",	240 },
+	{ "fstat",	28 },
+	{ "fstat64",	112 },
+	{ "fstatat64",	280 },
+	{ "fstatfs",	100 },
+	{ "fstatfs64",	299 },
+	{ "fsync",	118 },
+	{ "ftime",	__PNR_ftime },
+	{ "ftruncate",	93 },
+	{ "ftruncate64",	200 },
+	{ "futex",	210 },
+	{ "futimesat",	279 },
+	{ "get_kernel_syms",	130 },
+	{ "get_mempolicy",	261 },
+	{ "get_robust_list",	290 },
+	{ "get_thread_area",	214 },
+	{ "getcpu",	296 },
+	{ "getcwd",	110 },
+	{ "getdents",	141 },
+	{ "getdents64",	201 },
+	{ "getegid",	50 },
+	{ "getegid32", __PNR_getegid32 },
+	{ "geteuid",	49 },
+	{ "geteuid32", __PNR_geteuid32 },
+	{ "getgid",	47 },
+	{ "getgid32",	__PNR_getgid32 },
+	{ "getgroups",	80 },
+	{ "getgroups32",__PNR_getgroups32 },
+	{ "getitimer",	105 },
+	{ "getpeername",	53 },
+	{ "getpgid",	132 },
+	{ "getpgrp",	65 },
+	{ "getpid",	20 },
+	{ "getpmsg",	196 },
+	{ "getppid",	64 },
+	{ "getpriority",	96 },
+	{ "getrandom",	339 },
+	{ "getresgid",	171 },
+	{ "getresgid32",__PNR_getresgid32 },
+	{ "getresuid",	165 },
+	{ "getresuid32",__PNR_getresuid32 },
+	{ "getrlimit",	76 },
+	{ "getrusage",	77 },
+	{ "getsid",	147 },
+	{ "getsockname",	44 },
+	{ "getsockopt",	182 },
+	{ "gettid",	206 },
+	{ "gettimeofday",	78 },
+	{ "getuid",	24 },
+	{ "getuid32",	__PNR_getuid32 },
+	{ "getxattr",	241 },
+	{ "gtty",	__PNR_gtty },
+	{ "idle",	__PNR_idle },
+	{ "init_module",	128 },
+	{ "inotify_add_watch",	270 },
+	{ "inotify_init",	269 },
+	{ "inotify_init1",	314 },
+	{ "inotify_rm_watch",	271 },
+	{ "io_cancel",	219 },
+	{ "io_destroy",	216 },
+	{ "io_getevents",	217 },
+	{ "io_setup",	215 },
+	{ "io_submit",	218 },
+	{ "ioctl",	54 },
+	{ "ioperm",	__PNR_ioperm },
+	{ "iopl",	__PNR_iopl },
+	{ "ioprio_get",	268 },
+	{ "ioprio_set",	267 },
+	{ "ipc",	__PNR_ipc },
+	{ "kcmp",	332 },
+	{ "kexec_file_load", __PNR_kexec_file_load },
+	{ "kexec_load",	300 },
+	{ "keyctl",	266 },
+	{ "kill",	37 },
+	{ "lchown",	16 },
+	{ "lchown32",	__PNR_lchown32 },
+	{ "lgetxattr",	242 },
+	{ "link",	9 },
+	{ "linkat",	283 },
+	{ "listen",	32 },
+	{ "listxattr",	244 },
+	{ "llistxattr",	245 },
+	{ "lock",	__PNR_lock },
+	{ "lookup_dcookie",	223 },
+	{ "lremovexattr",	248 },
+	{ "lseek",	19 },
+	{ "lsetxattr",	239 },
+	{ "lstat",	84 },
+	{ "lstat64",	198 },
+	{ "madvise",	119 },
+	{ "mbind",	260 },
+	{ "membarrier",	343 },
+	{ "memfd_create",	340 },
+	{ "migrate_pages",	272 },
+	{ "mincore",	72 },
+	{ "mkdir",	39 },
+	{ "mkdirat",	276 },
+	{ "mknod",	14 },
+	{ "mknodat",	277 },
+	{ "mlock",	150 },
+	{ "mlock2",	345 },
+	{ "mlockall",	152 },
+	{ "mmap",	90 },
+	{ "mmap2",	89 },
+	{ "modify_ldt",	__PNR_modify_ldt },
+	{ "mount",	21 },
+	{ "move_pages",	295 },
+	{ "mprotect",	125 },
+	{ "mpx",	__PNR_mpx },
+	{ "mq_getsetattr",	234 },
+	{ "mq_notify",	233 },
+	{ "mq_open",	229 },
+	{ "mq_timedreceive",	232 },
+	{ "mq_timedsend",	231 },
+	{ "mq_unlink",	230 },
+	{ "mremap",	163 },
+	{ "msgctl",	191 },
+	{ "msgget",	190 },
+	{ "msgrcv",	189 },
+	{ "msgsnd",	188 },
+	{ "msync",	144 },
+	{ "multiplexer", __PNR_multiplexer },
+	{ "munlock",	151 },
+	{ "munlockall",	153 },
+	{ "munmap",	91 },
+	{ "name_to_handle_at",	325 },
+	{ "nanosleep",	162 },
+	{ "newfstatat", __PNR_newfstatat },
+	{ "nfsservctl",	169 },
+	{ "nice",	34 },
+	{ "oldfstat",	__PNR_oldfstat },
+	{ "oldlstat",	__PNR_oldlstat },
+	{ "oldolduname",__PNR_oldolduname },
+	{ "oldstat",	__PNR_oldstat },
+	{ "olduname",	__PNR_olduname },
+	{ "oldwait4",	__PNR_oldwait4 },
+	{ "open",	5 },
+	{ "open_by_handle_at",	326 },
+	{ "openat",	275 },
+	{ "pause",	29 },
+	{ "pciconfig_iobase", __PNR_pciconfig_iobase },
+	{ "pciconfig_read", __PNR_pciconfig_read },
+	{ "pciconfig_write", __PNR_pciconfig_write },
+	{ "perf_event_open",	318 },
+	{ "personality",	136 },
+	{ "pipe",	42 },
+	{ "pipe2",	313 },
+	{ "pivot_root",	67 },
+	{ "poll",	168 },
+	{ "ppoll",	274 },
+	{ "prctl",	172 },
+	{ "pread64",	108 },
+	{ "preadv",	315 },
+	{ "prlimit64",	321 },
+	{ "process_vm_readv",	330 },
+	{ "process_vm_writev",	331 },
+	{ "prof",	__PNR_prof },
+	{ "profil",	__PNR_profil },
+	{ "pselect6",	273 },
+	{ "ptrace",	26 },
+	{ "putpmsg",	197 },
+	{ "pwrite64",	109 },
+	{ "pwritev",	316 },
+	{ "query_module",	167 },
+	{ "quotactl",	131 },
+	{ "read",	3 },
+	{ "readahead",	207 },
+	{ "readdir",	__PNR_readdir },
+	{ "readlink",	85 },
+	{ "readlinkat",	285 },
+	{ "readv",	145 },
+	{ "reboot",	88 },
+	{ "recv",	98 },
+	{ "recvfrom",	123 },
+	{ "recvmmsg",	319 },
+	{ "recvmsg",	184 },
+	{ "remap_file_pages",	227 },
+	{ "removexattr",	247 },
+	{ "rename",	38 },
+	{ "renameat",	282 },
+	{ "renameat2",	337 },
+	{ "request_key",	265 },
+	{ "restart_syscall",	0 },
+	{ "rmdir",	40 },
+	{ "rt_sigaction",	174 },
+	{ "rt_sigpending",	176 },
+	{ "rt_sigprocmask",	175 },
+	{ "rt_sigqueueinfo",	178 },
+	{ "rt_sigreturn",	173 },
+	{ "rt_sigsuspend",	179 },
+	{ "rt_sigtimedwait",	177 },
+	{ "rt_tgsigqueueinfo",	317 },
+	{ "rtas", __PNR_rtas },
+	{ "s390_pci_mmio_read", __PNR_s390_pci_mmio_read },
+	{ "s390_pci_mmio_write", __PNR_s390_pci_mmio_write },
+	{ "s390_runtime_instr", __PNR_s390_runtime_instr },
+	{ "sched_get_priority_max",	159 },
+	{ "sched_get_priority_min",	160 },
+	{ "sched_getaffinity",	212 },
+	{ "sched_getattr",	335 },
+	{ "sched_getparam",	155 },
+	{ "sched_getscheduler",	157 },
+	{ "sched_rr_get_interval",	161 },
+	{ "sched_setaffinity",	211 },
+	{ "sched_setattr",	334 },
+	{ "sched_setparam",	154 },
+	{ "sched_setscheduler",	156 },
+	{ "sched_yield",	158 },
+	{ "seccomp",	338 },
+	{ "security",	__PNR_security },
+	{ "select",	__PNR_select },
+	{ "semctl",	187 },
+	{ "semget",	186 },
+	{ "semop",	185 },
+	{ "semtimedop",	228 },
+	{ "send",	58 },
+	{ "sendfile",	122 },
+	{ "sendfile64",	209 },
+	{ "sendmmsg",	329 },
+	{ "sendmsg",	183 },
+	{ "sendto",	82 },
+	{ "set_mempolicy",	262 },
+	{ "set_robust_list",	289 },
+	{ "set_thread_area",	213 },
+	{ "set_tid_address",	237 },
+	{ "set_tls", __PNR_set_tls },
+	{ "setdomainname",	121 },
+	{ "setfsgid",	139 },
+	{ "setfsgid32",	__PNR_setfsgid32 },
+	{ "setfsuid",	138 },
+	{ "setfsuid32",	__PNR_setfsuid32 },
+	{ "setgid",	46 },
+	{ "setgid32",	__PNR_setgid32 },
+	{ "setgroups",	81 },
+	{ "setgroups32", __PNR_setgroups32},
+	{ "sethostname",	74 },
+	{ "setitimer",	104 },
+	{ "setns",	328 },
+	{ "setpgid",	57 },
+	{ "setpriority",	97 },
+	{ "setregid",	71 },
+	{ "setregid32", __PNR_setregid32 },
+	{ "setresgid",	170 },
+	{ "setresgid32",__PNR_setresgid32 },
+	{ "setresuid",	164 },
+	{ "setresuid32",__PNR_setresuid32 },
+	{ "setreuid",	70 },
+	{ "setreuid32",	__PNR_setreuid32 },
+	{ "setrlimit",	75 },
+	{ "setsid",	66 },
+	{ "setsockopt",	181 },
+	{ "settimeofday",	79 },
+	{ "setuid",	23 },
+	{ "setuid32",	__PNR_setuid32 },
+	{ "setxattr",	238 },
+	{ "sgetmask",	68 },
+	{ "shmat",	192 },
+	{ "shmctl",	195 },
+	{ "shmdt",	193 },
+	{ "shmget",	194 },
+	{ "shutdown",	117 },
+	{ "sigaction",	__PNR_sigaction },
+	{ "sigaltstack",166 },
+	{ "signal",	48 },
+	{ "signalfd",	302 },
+	{ "signalfd4",	309 },
+	{ "sigpending",	73 },
+	{ "sigprocmask",	126 },
+	{ "sigreturn",	__PNR_sigreturn },
+	{ "sigsuspend",	__PNR_sigsuspend },
+	{ "socket",	17 },
+	{ "socketcall",	__PNR_socketcall },
+	{ "socketpair",	56 },
+	{ "splice",	291 },
+	{ "spu_create", __PNR_spu_create },
+	{ "spu_run", __PNR_spu_run },
+	{ "ssetmask",	69 },
+	{ "stat",	18 },
+	{ "stat64",	101 },
+	{ "statfs",	99 },
+	{ "statfs64",	298 },
+	{ "stime",	25 },
+	{ "stty",	__PNR_stty },
+	{ "subpage_prot", __PNR_subpage_prot },
+	{ "swapcontext", __PNR_swapcontext },
+	{ "swapoff",	115 },
+	{ "swapon",	87 },
+	{ "switch_endian", __PNR_switch_endian },
+	{ "symlink",	83 },
+	{ "symlinkat",	284 },
+	{ "sync",	36 },
+	{ "sync_file_range",	292 },
+	{ "sync_file_range2", __PNR_sync_file_range2 },
+	{ "syncfs",	327 },
+	{ "syscall", __PNR_syscall },
+	{ "sys_debug_setcontext", __PNR_sys_debug_setcontext },
+	{ "sysfs",	135 },
+	{ "sysinfo",	116 },
+	{ "syslog",	103 },
+	{ "sysmips",	__PNR_sysmips },
+	{ "tee",	293 },
+	{ "tgkill",	259 },
+	{ "time",	13 },
+	{ "timer_create",	250 },
+	{ "timer_delete",	254 },
+	{ "timer_getoverrun",	253 },
+	{ "timer_gettime",	252 },
+	{ "timer_settime",	251 },
+	{ "timerfd",	303 },
+	{ "timerfd_create",	306 },
+	{ "timerfd_gettime",	308 },
+	{ "timerfd_settime",	307 },
+	{ "times",	43 },
+	{ "tkill",	208 },
+	{ "truncate",	92 },
+	{ "truncate64",	199 },
+	{ "tuxcall",	__PNR_tuxcall },
+	{ "ugetrlimit", __PNR_ugetrlimit },
+	{ "ulimit",	__PNR_ulimit },
+	{ "umask",	60 },
+	{ "umount",	__PNR_umount },
+	{ "umount2",	52 },
+	{ "uname",	59 },
+	{ "unlink",	10 },
+	{ "unlinkat",	281 },
+	{ "unshare",	288 },
+	{ "uselib",	86 },
+	{ "userfaultfd", 344 },
+	{ "usr26",	__PNR_usr26 },
+	{ "usr32",	__PNR_usr32 },
+	{ "ustat",	62 },
+	{ "utime",	30 },
+	{ "utimensat",	301 },
+	{ "utimes",	336 },
+	{ "vfork",	113 },
+	{ "vhangup",	111 },
+	{ "vm86",	__PNR_vm86 },
+	{ "vm86old",	__PNR_vm86old },
+	{ "vmsplice",	294 },
+	{ "vserver",	263 },
+	{ "wait4",	114 },
+	{ "waitid",	235 },
+	{ "waitpid",	7 },
+	{ "write",	4 },
+	{ "writev",	146 },
+	{ NULL, __NR_SCMP_ERROR },
+};
+
+/**
+ * Resolve a syscall name to a number
+ * @param name the syscall name
+ *
+ * Resolve the given syscall name to the syscall number using the syscall table.
+ * Returns the syscall number on success, including negative pseudo syscall
+ * numbers; returns __NR_SCMP_ERROR on failure.
+ *
+ */
+int parisc_syscall_resolve_name(const char *name)
+{
+	unsigned int iter;
+	const struct arch_syscall_def *table = parisc_syscall_table;
+
+	/* XXX - plenty of room for future improvement here */
+	for (iter = 0; table[iter].name != NULL; iter++) {
+		if (strcmp(name, table[iter].name) == 0)
+			return table[iter].num;
+	}
+
+	return __NR_SCMP_ERROR;
+}
+
+/**
+ * Resolve a syscall number to a name
+ * @param num the syscall number
+ *
+ * Resolve the given syscall number to the syscall name using the syscall table.
+ * Returns a pointer to the syscall name string on success, including pseudo
+ * syscall names; returns NULL on failure.
+ *
+ */
+const char *parisc_syscall_resolve_num(int num)
+{
+	unsigned int iter;
+	const struct arch_syscall_def *table = parisc_syscall_table;
+
+	/* XXX - plenty of room for future improvement here */
+	for (iter = 0; table[iter].num != __NR_SCMP_ERROR; iter++) {
+		if (num == table[iter].num)
+			return table[iter].name;
+	}
+
+	return NULL;
+}
+
+/**
+ * Iterate through the syscall table and return the syscall name
+ * @param spot the offset into the syscall table
+ *
+ * Return the syscall name at position @spot or NULL on failure.  This function
+ * should only ever be used internally by libseccomp.
+ *
+ */
+const char *parisc_syscall_iterate_name(unsigned int spot)
+{
+	/* XXX - no safety checks here */
+	return parisc_syscall_table[spot].name;
+}
diff --git a/src/arch-parisc.c b/src/arch-parisc.c
new file mode 100644
index 0000000..f317fed
--- /dev/null
+++ b/src/arch-parisc.c
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2016 Helge Deller <deller@gmx.de>
+ * Author: Helge Deller <deller@gmx.de>
+ */
+
+#include <stdlib.h>
+#include <errno.h>
+#include <linux/audit.h>
+
+#include "arch.h"
+#include "arch-parisc.h"
+
+const struct arch_def arch_def_parisc = {
+	.token = SCMP_ARCH_PARISC,
+	.token_bpf = AUDIT_ARCH_PARISC,
+	.size = ARCH_SIZE_32,
+	.endian = ARCH_ENDIAN_BIG,
+	.syscall_resolve_name = parisc_syscall_resolve_name,
+	.syscall_resolve_num = parisc_syscall_resolve_num,
+	.syscall_rewrite = NULL,
+	.rule_add = NULL,
+};
diff --git a/src/arch-parisc.h b/src/arch-parisc.h
new file mode 100644
index 0000000..b9fe1df
--- /dev/null
+++ b/src/arch-parisc.h
@@ -0,0 +1,38 @@
+/**
+ * Enhanced Seccomp PARISC Specific Code
+ *
+ * Copyright (c) 2016 Helge Deller <deller@gmx.de>
+ *
+ */
+
+/*
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <http://www.gnu.org/licenses>.
+ */
+
+#ifndef _ARCH_PARISC_H
+#define _ARCH_PARISC_H
+
+#include <inttypes.h>
+
+#include "arch.h"
+#include "system.h"
+
+extern const struct arch_def arch_def_parisc;
+extern const struct arch_def arch_def_parisc64;
+
+int parisc_syscall_resolve_name(const char *name);
+const char *parisc_syscall_resolve_num(int num);
+
+const char *parisc_syscall_iterate_name(unsigned int spot);
+
+#endif
diff --git a/src/arch-parisc64.c b/src/arch-parisc64.c
new file mode 100644
index 0000000..2b63120
--- /dev/null
+++ b/src/arch-parisc64.c
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2016 Helge Deller <deller@gmx.de>
+ * Author: Helge Deller <deller@gmx.de>
+*/
+
+#include <stdlib.h>
+#include <errno.h>
+#include <linux/audit.h>
+
+#include "arch.h"
+#include "arch-parisc.h"
+
+const struct arch_def arch_def_parisc64 = {
+	.token = SCMP_ARCH_PARISC64,
+	.token_bpf = AUDIT_ARCH_PARISC64,
+	.size = ARCH_SIZE_64,
+	.endian = ARCH_ENDIAN_BIG,
+	.syscall_resolve_name = parisc_syscall_resolve_name,
+	.syscall_resolve_num = parisc_syscall_resolve_num,
+	.syscall_rewrite = NULL,
+	.rule_add = NULL,
+};
diff --git a/src/arch-syscall-check.c b/src/arch-syscall-check.c
index 71ec0b5..db7fb89 100644
--- a/src/arch-syscall-check.c
+++ b/src/arch-syscall-check.c
@@ -33,6 +33,7 @@
 #include "arch-mips.h"
 #include "arch-mips64.h"
 #include "arch-mips64n32.h"
+#include "arch-parisc.h"
 #include "arch-ppc.h"
 #include "arch-ppc64.h"
 #include "arch-s390.h"
@@ -71,6 +72,7 @@ int main(int argc, char *argv[])
 	int i_mips = 0;
 	int i_mips64 = 0;
 	int i_mips64n32 = 0;
+	int i_parisc = 0;
 	int i_ppc = 0;
 	int i_ppc64 = 0;
 	int i_s390 = 0;
@@ -101,6 +103,8 @@ int main(int argc, char *argv[])
 			      mips64_syscall_iterate_name(i_mips64));
 		syscall_check(str_miss, sys_name, "mips64n32",
 			      mips64n32_syscall_iterate_name(i_mips64n32));
+		syscall_check(str_miss, sys_name, "parisc",
+			      parisc_syscall_iterate_name(i_parisc));
 		syscall_check(str_miss, sys_name, "ppc",
 			      ppc_syscall_iterate_name(i_ppc));
 		syscall_check(str_miss, sys_name, "ppc64",
@@ -135,6 +139,8 @@ int main(int argc, char *argv[])
 			i_mips64 = -1;
 		if (!mips64n32_syscall_iterate_name(++i_mips64n32))
 			i_mips64n32 = -1;
+		if (!parisc_syscall_iterate_name(++i_parisc))
+			i_parisc = -1;
 		if (!ppc_syscall_iterate_name(++i_ppc))
 			i_ppc = -1;
 		if (!ppc64_syscall_iterate_name(++i_ppc64))
@@ -146,6 +152,7 @@ int main(int argc, char *argv[])
 	} while (i_x86_64 >= 0 && i_x32 >= 0 &&
 		 i_arm >= 0 && i_aarch64 >= 0 &&
 		 i_mips >= 0 && i_mips64 >= 0 && i_mips64n32 >= 0 &&
+		 i_parisc >= 0 &&
 		 i_ppc >= 0 && i_ppc64 >= 0 &&
 		 i_s390 >= 0 && i_s390x >= 0);
 
@@ -190,6 +197,10 @@ int main(int argc, char *argv[])
 		       mips64n32_syscall_iterate_name(i_mips64n32));
 		return 1;
 	}
+	if (i_parisc >= 0) {
+		printf("%s: ERROR, parisc has additional syscalls\n",
+		       parisc_syscall_iterate_name(i_parisc));
+	}
 	if (i_ppc >= 0) {
 		printf("%s: ERROR, ppc has additional syscalls\n",
 		       ppc_syscall_iterate_name(i_ppc));
diff --git a/src/arch-syscall-dump.c b/src/arch-syscall-dump.c
index 636fd9a..c95b899 100644
--- a/src/arch-syscall-dump.c
+++ b/src/arch-syscall-dump.c
@@ -38,6 +38,7 @@
 #include "arch-mips64.h"
 #include "arch-mips64n32.h"
 #include "arch-aarch64.h"
+#include "arch-parisc.h"
 #include "arch-ppc.h"
 #include "arch-ppc64.h"
 #include "arch-s390.h"
@@ -116,6 +117,10 @@ int main(int argc, char *argv[])
 		case SCMP_ARCH_MIPSEL64N32:
 			sys_name = mips64n32_syscall_iterate_name(iter);
 			break;
+		case SCMP_ARCH_PARISC:
+		case SCMP_ARCH_PARISC64:
+			sys_name = parisc_syscall_iterate_name(iter);
+			break;
 		case SCMP_ARCH_PPC:
 			sys_name = ppc_syscall_iterate_name(iter);
 			break;
diff --git a/src/arch.c b/src/arch.c
index 0f24d1c..f5a898d 100644
--- a/src/arch.c
+++ b/src/arch.c
@@ -38,6 +38,7 @@
 #include "arch-mips.h"
 #include "arch-mips64.h"
 #include "arch-mips64n32.h"
+#include "arch-parisc.h"
 #include "arch-ppc.h"
 #include "arch-ppc64.h"
 #include "arch-s390.h"
@@ -79,6 +80,10 @@ const struct arch_def *arch_def_native = &arch_def_mips64n32;
 #elif __MIPSEL__
 const struct arch_def *arch_def_native = &arch_def_mipsel64n32;
 #endif /* _MIPS_SIM_NABI32 */
+#elif __hppa64__ /* hppa64 must be checked before hppa */
+const struct arch_def *arch_def_native = &arch_def_parisc64;
+#elif __hppa__
+const struct arch_def *arch_def_native = &arch_def_parisc;
 #elif __PPC64__
 #ifdef __BIG_ENDIAN__
 const struct arch_def *arch_def_native = &arch_def_ppc64;
@@ -139,6 +144,10 @@ const struct arch_def *arch_def_lookup(uint32_t token)
 		return &arch_def_mips64n32;
 	case SCMP_ARCH_MIPSEL64N32:
 		return &arch_def_mipsel64n32;
+	case SCMP_ARCH_PARISC:
+		return &arch_def_parisc;
+	case SCMP_ARCH_PARISC64:
+		return &arch_def_parisc64;
 	case SCMP_ARCH_PPC:
 		return &arch_def_ppc;
 	case SCMP_ARCH_PPC64:
@@ -185,6 +194,10 @@ const struct arch_def *arch_def_lookup_name(const char *arch_name)
 		return &arch_def_mips64n32;
 	else if (strcmp(arch_name, "mipsel64n32") == 0)
 		return &arch_def_mipsel64n32;
+	else if (strcmp(arch_name, "parisc64") == 0)
+		return &arch_def_parisc64;
+	else if (strcmp(arch_name, "parisc") == 0)
+		return &arch_def_parisc;
 	else if (strcmp(arch_name, "ppc") == 0)
 		return &arch_def_ppc;
 	else if (strcmp(arch_name, "ppc64") == 0)
diff --git a/src/gen_pfc.c b/src/gen_pfc.c
index 99c3297..b9c122e 100644
--- a/src/gen_pfc.c
+++ b/src/gen_pfc.c
@@ -71,6 +71,10 @@ static const char *_pfc_arch(const struct arch_def *arch)
 		return "mips64n32";
 	case SCMP_ARCH_MIPSEL64N32:
 		return "mipsel64n32";
+	case SCMP_ARCH_PARISC:
+		return "parisc";
+	case SCMP_ARCH_PARISC64:
+		return "parisc64";
 	case SCMP_ARCH_PPC64:
 		return "ppc64";
 	case SCMP_ARCH_PPC64LE:
diff --git a/src/python/libseccomp.pxd b/src/python/libseccomp.pxd
index 15c94f8..500da15 100644
--- a/src/python/libseccomp.pxd
+++ b/src/python/libseccomp.pxd
@@ -43,6 +43,8 @@ cdef extern from "seccomp.h":
         SCMP_ARCH_MIPSEL
         SCMP_ARCH_MIPSEL64
         SCMP_ARCH_MIPSEL64N32
+        SCMP_ARCH_PARISC
+        SCMP_ARCH_PARISC64
         SCMP_ARCH_PPC
         SCMP_ARCH_PPC64
         SCMP_ARCH_PPC64LE
diff --git a/src/python/seccomp.pyx b/src/python/seccomp.pyx
index c87bc3f..cb17642 100644
--- a/src/python/seccomp.pyx
+++ b/src/python/seccomp.pyx
@@ -147,6 +147,8 @@ cdef class Arch:
     MIPSEL - MIPS little endian O32 ABI
     MIPSEL64 - MIPS little endian 64-bit ABI
     MIPSEL64N32 - MIPS little endian N32 ABI
+    PARISC - 32-bit PA-RISC
+    PARISC64 - 64-bit PA-RISC
     PPC64 - 64-bit PowerPC
     PPC - 32-bit PowerPC
     """
@@ -165,6 +167,8 @@ cdef class Arch:
     MIPSEL = libseccomp.SCMP_ARCH_MIPSEL
     MIPSEL64 = libseccomp.SCMP_ARCH_MIPSEL64
     MIPSEL64N32 = libseccomp.SCMP_ARCH_MIPSEL64N32
+    PARISC = libseccomp.SCMP_ARCH_PARISC
+    PARISC64 = libseccomp.SCMP_ARCH_PARISC64
     PPC = libseccomp.SCMP_ARCH_PPC
     PPC64 = libseccomp.SCMP_ARCH_PPC64
     PPC64LE = libseccomp.SCMP_ARCH_PPC64LE
@@ -205,6 +209,10 @@ cdef class Arch:
                 self._token = libseccomp.SCMP_ARCH_MIPSEL64
             elif arch == libseccomp.SCMP_ARCH_MIPSEL64N32:
                 self._token = libseccomp.SCMP_ARCH_MIPSEL64N32
+            elif arch == libseccomp.SCMP_ARCH_PARISC:
+                self._token = libseccomp.SCMP_ARCH_PARISC
+            elif arch == libseccomp.SCMP_ARCH_PARISC64:
+                self._token = libseccomp.SCMP_ARCH_PARISC64
             elif arch == libseccomp.SCMP_ARCH_PPC:
                 self._token = libseccomp.SCMP_ARCH_PPC
             elif arch == libseccomp.SCMP_ARCH_PPC64:
diff --git a/tests/26-sim-arch_all_be_basic.c b/tests/26-sim-arch_all_be_basic.c
index d2c191c..d31ce12 100644
--- a/tests/26-sim-arch_all_be_basic.c
+++ b/tests/26-sim-arch_all_be_basic.c
@@ -52,6 +52,12 @@ int main(int argc, char *argv[])
 	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("mips64n32"));
 	if (rc != 0)
 		goto out;
+	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("parisc"));
+	if (rc != 0)
+		goto out;
+	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("parisc64"));
+	if (rc != 0)
+		goto out;
 	rc = seccomp_arch_add(ctx, seccomp_arch_resolve_name("ppc"));
 	if (rc != 0)
 		goto out;
diff --git a/tests/26-sim-arch_all_be_basic.py b/tests/26-sim-arch_all_be_basic.py
index b0b660a..3a177b4 100755
--- a/tests/26-sim-arch_all_be_basic.py
+++ b/tests/26-sim-arch_all_be_basic.py
@@ -33,6 +33,8 @@ def test(args):
     f.add_arch(Arch("mips"))
     f.add_arch(Arch("mips64"))
     f.add_arch(Arch("mips64n32"))
+    f.add_arch(Arch("parisc"))
+    f.add_arch(Arch("parisc64"))
     f.add_arch(Arch("ppc"))
     f.add_arch(Arch("ppc64"))
     f.add_arch(Arch("s390"))
diff --git a/tests/regression b/tests/regression
index 229b8a4..40567d5 100755
--- a/tests/regression
+++ b/tests/regression
@@ -28,6 +28,7 @@ GLBL_ARCH_LE_SUPPORT=" \
 	ppc64le"
 GLBL_ARCH_BE_SUPPORT=" \
 	mips mips64 mips64n32 \
+	parisc parisc64 \
 	ppc ppc64 \
 	s390 s390x"
 
@@ -702,7 +703,7 @@ function run_test_live() {
 
 	# setup the arch specific return values
 	case "$arch" in
-	x86|x86_64|x32|arm|aarch64|ppc|ppc64|ppc64le|ppc|s390|s390x)
+	x86|x86_64|x32|arm|aarch64|parisc|parisc64|ppc|ppc64|ppc64le|ppc|s390|s390x)
 		rc_kill=159
 		rc_allow=160
 		rc_trap=161
diff --git a/tools/scmp_arch_detect.c b/tools/scmp_arch_detect.c
index 4b452d1..ad43f2d 100644
--- a/tools/scmp_arch_detect.c
+++ b/tools/scmp_arch_detect.c
@@ -99,6 +99,12 @@ int main(int argc, char *argv[])
 		case SCMP_ARCH_MIPSEL64N32:
 			printf("mipsel64n32\n");
 			break;
+		case SCMP_ARCH_PARISC:
+			printf("parisc\n");
+			break;
+		case SCMP_ARCH_PARISC64:
+			printf("parisc64\n");
+			break;
 		case SCMP_ARCH_PPC:
 			printf("ppc\n");
 			break;
diff --git a/tools/scmp_bpf_sim.c b/tools/scmp_bpf_sim.c
index a0cf6d1..3d3204a 100644
--- a/tools/scmp_bpf_sim.c
+++ b/tools/scmp_bpf_sim.c
@@ -265,6 +265,10 @@ int main(int argc, char *argv[])
 				arch = AUDIT_ARCH_MIPS64N32;
 			else if (strcmp(optarg, "mipsel64n32") == 0)
 				arch = AUDIT_ARCH_MIPSEL64N32;
+			else if (strcmp(optarg, "parisc") == 0)
+				arch = AUDIT_ARCH_PARISC;
+			else if (strcmp(optarg, "parisc64") == 0)
+				arch = AUDIT_ARCH_PARISC64;
 			else if (strcmp(optarg, "ppc") == 0)
 				arch = AUDIT_ARCH_PPC;
 			else if (strcmp(optarg, "ppc64") == 0)
diff --git a/tools/util.c b/tools/util.c
index cc48647..7122335 100644
--- a/tools/util.c
+++ b/tools/util.c
@@ -62,6 +62,10 @@
 #elif __MIPSEL__
 #define ARCH_NATIVE		AUDIT_ARCH_MIPSEL64N32
 #endif /* _MIPS_SIM_NABI32 */
+#elif __hppa64__
+#define ARCH_NATIVE		AUDIT_ARCH_PARISC64
+#elif __hppa__
+#define ARCH_NATIVE		AUDIT_ARCH_PARISC
 #elif __PPC64__
 #ifdef __BIG_ENDIAN__
 #define ARCH_NATIVE		AUDIT_ARCH_PPC64

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Subject: Re: Re: [PATCH] libseccomp: Add parisc architecture
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Xref: news.gmane.org gmane.comp.lib.libseccomp.general:1368 gmane.linux.ports.parisc:26785
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On Wed, May 25, 2016 at 10:53 AM, Helge Deller <deller@gmx.de> wrote:
> * Paul Moore <pmoore@redhat.com>:
>> On Sat, Apr 30, 2016 at 4:51 PM, Helge Deller <deller@gmx.de> wrote:
>> > On 15.04.2016 17:11, Helge Deller wrote:
>> >> This patch (v3) adds support for the parisc and parisc64 architectures
>> >> to libseccomp.
>> >
>> > Linux kernel 4.5.2-1 with full seccomp support for parisc/hppa is
>> > now publically available in debian:
>> > https://buildd.debian.org/status/package.php?p=linux&suite=sid
>> >
>> > Any chance to get this patch (v3) applied to the libseccomp git tree now ?
>>
>> Hi Helge,
>>
>> I apologize for the delay, but I finally got around to merging your
>> code and noticed a problem: you're missing the parisc enablement code
>> in src/arch-syscall-check.c which has hidden a number of issues with
>> the parsic{64} syscall table (run 'make check').  Could you add the
>> missing code to arch-syscall-check.c and update the syscall table?
>
> Indeed. I missed that.
> Below is the updated patch (v4) which addresses this issue.
>
> It survived all "make check" tests on x64_64 and parisc, as well as the
> live regression tests on parisc.
>
> Thanks,
> Helge
>
> xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
> This patch (v4) adds support for the parisc and parisc64 architectures
> to libseccomp.
>
> I didn't split up the patch, because it's pretty trivial.
> Those parisc-specific files gets added:
>  src/arch-parisc-syscalls.c
>  src/arch-parisc.c
>  src/arch-parisc.h
>  src/arch-parisc64.c
>
> All other changes are trivial because they simply add parisc-specific
> case statements in variouse switch statements.
>
> I did ran a "make check" on x86-64 and parisc and all testcases succeeded.
> All live testcases succeed as well when running "./regression -T live".
>
> The patch applies cleanly to current libseccomp git head.
>
> Changes between v4 and v3 of this patch:
> - Added parisc arch to arch-syscall-check.c and fixup syscall table as
>   needed
> - Fixed copyright notices in parisc files as suggested by Mike Frysinger
>
> Changes between v3 and v2 of this patch:
> - Stripped out patch which reports if a check was skipped because
>   valgrind isn't installed.
> - Added tuxcall pseudo syscall for 19-sim-missing_syscalls testcase
> - Added sysmips pseudo syscall for 29-sim-pseudo_syscall testcase
>
> Changes between v2 and v1 of this patch:
> - Enabled seccomp mode 2 regression tests on parisc. Kernel support for
>   hppa was added in kernel 4.6-rc1 and backported into the kernel v4.5.2
>   stable series.
>
> Thanks,
> Helge
>
> Signed-off-by: Helge Deller <deller@gmx.de>
>
>
>
> diffstat:
>  include/seccomp.h.in              |    6
>  src/Makefile.am                   |    2
>  src/arch-parisc-syscalls.c        |  499 ++++++++++++++++++++++++++++++++++++++
>  src/arch-parisc.c                 |   22 +
>  src/arch-parisc.h                 |   38 ++
>  src/arch-parisc64.c               |   22 +
>  src/arch-syscall-check.c          |   11
>  src/arch-syscall-dump.c           |    5
>  src/arch.c                        |   13
>  src/gen_pfc.c                     |    4
>  src/python/libseccomp.pxd         |    2
>  src/python/seccomp.pyx            |    8
>  tests/26-sim-arch_all_be_basic.c  |    6
>  tests/26-sim-arch_all_be_basic.py |    2
>  tests/regression                  |    3
>  tools/scmp_arch_detect.c          |    6
>  tools/scmp_bpf_sim.c              |    4
>  tools/util.c                      |    4
>  18 files changed, 656 insertions(+), 1 deletion(-)

I had to fix-up a few formatting errors found by 'make check-syntax',
but it looks reasonable to me, I'm merging it now and it should be
part of the v2.4 release.

Thanks for your help!

-- 
paul moore
www.paul-moore.com

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The following compile error is present in 2.18.34:

arch/parisc/kernel/ptrace.c: In function 'do_syscall_trace_enter':
arch/parisc/kernel/ptrace.c:273:2: error: implicit declaration of function 'secure_computing_strict' [-Werror=implicit-function-declaration]
  secure_computing_strict(regs->gr[20]);
  ^

It's probably present in earlier versions but was hidden by the ptrace patch which is now installed in 2.18.

Dave
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John David Anglin	dave.anglin@bell.net



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Hi,
I am Kristi and i saw your contact through google page of your country which impress me and i feel we can be friends to share ideals and reason together for good,if not bad then let us know more about each other and i hope there will be no problem for us to be friend with no bad intention.You can also reply me through email(cplkristibakar@outlook.com) so that i can share details about myself, i will be waiting to hear from you soon. 
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Subject: Re: [PATCH v3 00/16] genrtc removal
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Hi,

On 03/05/2016 at 12:05:34 +0200, Arnd Bergmann wrote :
> On Tuesday 03 May 2016 09:24:18 Alexandre Belloni wrote:
> > Hi Arnd,
> > 
> > I see you didn't copy Greg on that series (that may explain his
> > confusion on the previous patch), do you expect me to take it
> > through the RTC tree? That is fine but I'd like some acks from him.
> 
> Yes, that was a mistake. I dropped Greg from one Cc list in v2 when
> I split up the RTC changes into the part that was for drivers/rtc
> and the other one for Greg's char-misc tree. Then I reused the first
> Cc list when I sent a combined series for v3 again. I'll fix that
> when I post v4. There are only very small changes in there that
> I still need to pick up, so hopefully that will be the last version.
> 
> It would be nice if you could take it through your tree then.
> 

We are now at 4.7-rc1. Can you send v4 soon so that I can apply that
series  and get it in linux-next?

There is a small rebase to do on patch v3.

Thanks!

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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From - Thu Nov 08 21:38:55 2018
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Subject: [PATCH v4 00/16] genrtc removal
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Xref: news.gmane.org gmane.linux.drivers.rtc:29 gmane.linux.ports.alpha:3735 gmane.linux.kernel:2230333 gmane.linux.ports.parisc:26789 gmane.linux.ports.ppc64.devel:127837 gmane.linux.ports.sh.devel:54122 gmane.linux.kernel.cross-arch:32169
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/29>

This is the promised resend of the removal of the genrtc driver and some
related code, now that we are at a good time to merge this for the coming
merge window.

The contents are the same as before, except fixing the build regressions
reported by the 0day builder: on both x86 and mn10300 the rearranging
of the header files caused some missing headers that were included
implicitly before.

Things regarding rtc are a bit intertwined, so I'm mixing patches for
drivers/rtc with drivers/char and arch. This series should make that
better in the end.

This now thoroughly removes the genrtc driver including the asm/rtc.h
headers it uses. For all architectures that still have a meaningful
asm/rtc.h, this goes through two stages:

1) make the rtc-generic implementation independent of asm/rtc.h
2) remove the asm/rtc.h header and disallow the gen_rtc driver

As the last step, the driver itself gets removed. There are a
couple of follow-up cleanup tasks that we could do once this is
all merged, including removing all the remaining nonstandard
RTC drivers from drivers/char:
 
- alpha most likely doesn't ever use CONFIG_RTC, as it has its
  own replacement driver in arch/alpha/kernel/rtc.c, and the legacy
  driver is slightly broken on at least one alpha machine

- loongson64 is the only MIPS machine that has the option of running
  the legacy CONFIG_RTC driver, but it should also work with rtc-cmos,
  and support for that was added in 2010 with 5df74352876 ("MIPS:
  Loongson: Define rtc device on MC146818-equipped systems").

- with the above two gone, the only remaining user of CONFIG_RTC
  is arch/mn10300, and that just needs to register the appropriate
  platform device to use the RTC_CMOS driver instead. I'm sure the
  only reason that hasn't happened is because there is very little
  active development on this architecture.

- CONFIG_JS_RTC depends on SPARC32, but can not be selected there
  because SPARC unconditionally selects RTC_CLASS since 2008, so
  this is effectively dead code. Interestingly, this is not even
  a separate driver, but actually uses the same code as CONFIG_RTC
  with some #ifdef

- CONFIG_EFI_RTC is actively used on all six Itanium configurations,
  though the CONFIG_RTC_DRV_EFI replacement driver is also available
  there (and has been Itanium-only until ARM64 support for EFI was
  merged). I suspect it's just a matter of getting an Ack from the
  Itanium maintainers to remove it and change the defconfigs.

- the last remaining legacy RTC driver after those is CONFIG_DS1302,
  which has a slightly nonstandard ioctl interface and is only used
  on arch/m32r. I have experimented with this a bit and think it
  can be converted in a backward-compatible way as well.

- Regarding the users of RTC_DRV_GENERIC, it would be nice to convert
  them into hardware-specific drivers that look more like the other
  drivers. parisc is particularly easy, it just needs to call
  platform_create_bundle() instead of platform_device_register.
  The three other architectures have their own abstraction layer
  on top of rtc-generic and should kill that off. There are only
  a few drivers in each case: m68k has one (q40), sh has two
  (dreamcast and sh3) and powerpc has four (rtas, mpc8xx, chrp
  and pmac).

- Once all RTC support uses the RTC class subsystem, we should
  remove all implementations of read_persistent_clock{,64} that only
  access the RTC or return a hardwired time, and we should
  remove all update_persistent_clock{,64} users and
  CONFIG_GENERIC_CMOS_UPDATE, as both are replaced with
  generic rtc code.

	Arnd

Cc: geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org
Cc: gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org
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Cc: dalias-8zAoT0mYgF4@public.gmane.org
Cc: dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
Cc: linux-alpha-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
Cc: linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-m68k-cunTk1MwBs8S/qaLPR03pWD2FQJk+8+b@public.gmane.org
Cc: rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
Cc: linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org

Arnd Bergmann (16):
  rtc: cmos: remove empty asm/mc146818rtc.h files
  rtc: cmos: move mc146818rtc code out of asm-generic/rtc.h
  char/genrtc: x86: remove remnants of asm/rtc.h
  rtc: sh: provide rtc_class_ops directly
  char/genrtc: remove alpha support
  char/genrtc: remove mn10300 support
  rtc: parisc: provide rtc_class_ops directly
  char/genrtc: remove parisc support
  rtc: m68k: provide rtc_class_ops directly
  rtc: m68k: provide ioctl for q40
  char/genrtc: remove m68k support
  rtc: powerpc: provide rtc_class_ops directly
  char/genrtc: remove powerpc support
  rtc: generic: remove get_rtc_time/set_rtc_time wrappers
  char/genrtc: remove asm-generic/rtc.h from mips
  char/genrtc: remove the rest of the driver

 arch/alpha/include/asm/rtc.h                 |   1 -
 arch/alpha/kernel/core_marvel.c              |   1 -
 arch/alpha/kernel/rtc.c                      |   6 +-
 arch/frv/include/asm/mc146818rtc.h           |  16 -
 arch/h8300/include/asm/mc146818rtc.h         |   9 -
 arch/ia64/include/asm/mc146818rtc.h          |  10 -
 arch/m68k/amiga/config.c                     |   1 -
 arch/m68k/apollo/config.c                    |   1 -
 arch/m68k/bvme6000/config.c                  |   1 -
 arch/m68k/hp300/config.c                     |   2 +-
 arch/m68k/include/asm/rtc.h                  |  79 ----
 arch/m68k/kernel/time.c                      |  48 ++-
 arch/m68k/mac/config.c                       |   3 +-
 arch/m68k/mac/misc.c                         |   1 -
 arch/m68k/mvme147/config.c                   |   1 -
 arch/m68k/mvme16x/config.c                   |   1 -
 arch/m68k/q40/config.c                       |   2 +-
 arch/m68k/sun3/config.c                      |   1 -
 arch/m68k/sun3/intersil.c                    |   2 +-
 arch/m68k/sun3x/time.c                       |   2 +-
 arch/mips/sni/time.c                         |   1 -
 arch/mn10300/include/asm/rtc.h               |   2 -
 arch/mn10300/kernel/rtc.c                    |   2 +-
 arch/mn10300/proc-mn103e010/proc-init.c      |   1 +
 arch/mn10300/proc-mn2ws0050/proc-init.c      |   1 +
 arch/parisc/include/asm/mc146818rtc.h        |   9 -
 arch/parisc/include/asm/rtc.h                | 131 -------
 arch/parisc/kernel/time.c                    |  36 +-
 arch/powerpc/include/asm/rtc.h               |  78 ----
 arch/powerpc/kernel/time.c                   |  29 +-
 arch/powerpc/platforms/Kconfig               |  11 +
 arch/powerpc/platforms/ps3/time.c            |   2 +-
 arch/sh/include/asm/mc146818rtc.h            |   7 -
 arch/sh/include/asm/rtc.h                    |  11 -
 arch/sh/kernel/time.c                        |  33 +-
 arch/x86/include/asm/mc146818rtc.h           |   1 -
 arch/x86/include/asm/rtc.h                   |   1 -
 arch/x86/kernel/hpet.c                       |   3 +-
 arch/x86/kernel/rtc.c                        |   3 +-
 arch/x86/platform/efi/efi.c                  |   1 -
 arch/x86/platform/efi/efi_64.c               |   1 +
 arch/x86/platform/intel-mid/intel_mid_vrtc.c |   1 +
 drivers/acpi/acpi_cmos_rtc.c                 |   2 +-
 drivers/base/power/trace.c                   |   6 +-
 drivers/char/Kconfig                         |  26 --
 drivers/char/Makefile                        |   1 -
 drivers/char/genrtc.c                        | 539 ---------------------------
 drivers/rtc/rtc-cmos.c                       |  12 +-
 drivers/rtc/rtc-generic.c                    |  36 +-
 drivers/rtc/rtc-mrst.c                       |   2 +-
 include/asm-generic/rtc.h                    | 247 ------------
 include/linux/mc146818rtc.h                  | 194 ++++++++++
 52 files changed, 362 insertions(+), 1256 deletions(-)
 delete mode 100644 arch/alpha/include/asm/rtc.h
 delete mode 100644 arch/frv/include/asm/mc146818rtc.h
 delete mode 100644 arch/h8300/include/asm/mc146818rtc.h
 delete mode 100644 arch/ia64/include/asm/mc146818rtc.h
 delete mode 100644 arch/m68k/include/asm/rtc.h
 delete mode 100644 arch/parisc/include/asm/mc146818rtc.h
 delete mode 100644 arch/parisc/include/asm/rtc.h
 delete mode 100644 arch/powerpc/include/asm/rtc.h
 delete mode 100644 arch/sh/include/asm/mc146818rtc.h
 delete mode 100644 arch/x86/include/asm/rtc.h
 delete mode 100644 drivers/char/genrtc.c
 delete mode 100644 include/asm-generic/rtc.h

-- 
2.7.0

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From - Thu Nov 08 21:38:55 2018
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From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 15/16] char/genrtc: remove asm-generic/rtc.h
 from mips
Date: Mon, 30 May 2016 20:58:03 +0200
Lines: 34
Approved: news@gmane.org
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Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
	geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org,
	gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
	deller-Mmb7MZpHnFY@public.gmane.org,
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	dalias-8zAoT0mYgF4@public.gmane.org,
	dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
	linux-alpha-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
	linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-m68k-cunTk1MwBs8S/qaLPR03pWD2FQJk+8+b@public.gmane.org,
	rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org,
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To: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
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Xref: news.gmane.org gmane.linux.drivers.rtc:30 gmane.linux.ports.alpha:3736 gmane.linux.kernel:2230334 gmane.linux.ports.parisc:26790 gmane.linux.ports.ppc64.devel:127838 gmane.linux.ports.sh.devel:54123 gmane.linux.kernel.cross-arch:32170
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/30>

arch/mips/sni/time.c includes asm-generic/rtc.h for no apparent reason,
and it works fine without that header, so lets remove the inclusion
in preparation of deleting the file.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 arch/mips/sni/time.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c
index fb4b3520cdc6..7ee14f41fc25 100644
--- a/arch/mips/sni/time.c
+++ b/arch/mips/sni/time.c
@@ -8,7 +8,6 @@
 
 #include <asm/sni.h>
 #include <asm/time.h>
-#include <asm-generic/rtc.h>
 
 #define SNI_CLOCK_TICK_RATE	3686400
 #define SNI_COUNTER2_DIV	64
-- 
2.7.0

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From - Thu Nov 08 21:38:55 2018
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From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 01/16] rtc: cmos: remove empty
 asm/mc146818rtc.h files
Date: Mon, 30 May 2016 20:57:49 +0200
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To: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
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Xref: news.gmane.org gmane.linux.drivers.rtc:31 gmane.linux.ports.alpha:3737 gmane.linux.kernel:2230335 gmane.linux.ports.parisc:26791 gmane.linux.ports.ppc64.devel:127839 gmane.linux.ports.sh.devel:54124 gmane.linux.kernel.cross-arch:32171
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/31>

Nothing on these architectures ever includes the asm/mc146818rtc.h
file, the drivers that used to do this have been fixed long ago,
and the remaining users are all PC-specific.

This removes the files for good.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Acked-by: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
---
 arch/frv/include/asm/mc146818rtc.h    | 16 ----------------
 arch/h8300/include/asm/mc146818rtc.h  |  9 ---------
 arch/ia64/include/asm/mc146818rtc.h   | 10 ----------
 arch/parisc/include/asm/mc146818rtc.h |  9 ---------
 arch/sh/include/asm/mc146818rtc.h     |  7 -------
 5 files changed, 51 deletions(-)
 delete mode 100644 arch/frv/include/asm/mc146818rtc.h
 delete mode 100644 arch/h8300/include/asm/mc146818rtc.h
 delete mode 100644 arch/ia64/include/asm/mc146818rtc.h
 delete mode 100644 arch/parisc/include/asm/mc146818rtc.h
 delete mode 100644 arch/sh/include/asm/mc146818rtc.h

diff --git a/arch/frv/include/asm/mc146818rtc.h b/arch/frv/include/asm/mc146818rtc.h
deleted file mode 100644
index 90dfb7a633d1..000000000000
--- a/arch/frv/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* mc146818rtc.h: RTC defs
- *
- * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-
-#endif /* _ASM_MC146818RTC_H */
diff --git a/arch/h8300/include/asm/mc146818rtc.h b/arch/h8300/include/asm/mc146818rtc.h
deleted file mode 100644
index ab9d9646d241..000000000000
--- a/arch/h8300/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _H8300_MC146818RTC_H
-#define _H8300_MC146818RTC_H
-
-/* empty include file to satisfy the include in genrtc.c/ide-geometry.c */
-
-#endif /* _H8300_MC146818RTC_H */
diff --git a/arch/ia64/include/asm/mc146818rtc.h b/arch/ia64/include/asm/mc146818rtc.h
deleted file mode 100644
index 407787a237ba..000000000000
--- a/arch/ia64/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _ASM_IA64_MC146818RTC_H
-#define _ASM_IA64_MC146818RTC_H
-
-/*
- * Machine dependent access functions for RTC registers.
- */
-
-/* empty include file to satisfy the include in genrtc.c */
-
-#endif /* _ASM_IA64_MC146818RTC_H */
diff --git a/arch/parisc/include/asm/mc146818rtc.h b/arch/parisc/include/asm/mc146818rtc.h
deleted file mode 100644
index adf41631449f..000000000000
--- a/arch/parisc/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-/* empty include file to satisfy the include in genrtc.c */
-
-#endif /* _ASM_MC146818RTC_H */
diff --git a/arch/sh/include/asm/mc146818rtc.h b/arch/sh/include/asm/mc146818rtc.h
deleted file mode 100644
index 0aee96a97330..000000000000
--- a/arch/sh/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-#endif /* _ASM_MC146818RTC_H */
-- 
2.7.0

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From - Thu Nov 08 21:38:55 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 11/16] char/genrtc: remove m68k support
Date: Mon, 30 May 2016 20:57:59 +0200
Lines: 322
Approved: news@gmane.org
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Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
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To: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
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Xref: news.gmane.org gmane.linux.drivers.rtc:32 gmane.linux.ports.alpha:3738 gmane.linux.kernel:2230336 gmane.linux.ports.parisc:26792 gmane.linux.ports.ppc64.devel:127840 gmane.linux.ports.sh.devel:54125 gmane.linux.kernel.cross-arch:32172
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/32>

The asm/rtc.h header is only used for the old gen_rtc driver
that has been replaced by rtc-generic. According to Geert
Uytterhoeven, nobody has used the old driver on m68k for
a long time, so we can now just remove the header file
and disallow the driver in Kconfig.

All files that used to include asm/rtc.h are now changed so
they include the headers that were used implicitly through
asm/rtc.h.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 arch/m68k/amiga/config.c    |  1 -
 arch/m68k/apollo/config.c   |  1 -
 arch/m68k/bvme6000/config.c |  1 -
 arch/m68k/hp300/config.c    |  2 +-
 arch/m68k/include/asm/rtc.h | 79 ---------------------------------------------
 arch/m68k/mac/config.c      |  3 +-
 arch/m68k/mac/misc.c        |  1 -
 arch/m68k/mvme147/config.c  |  1 -
 arch/m68k/mvme16x/config.c  |  1 -
 arch/m68k/q40/config.c      |  2 +-
 arch/m68k/sun3/config.c     |  1 -
 arch/m68k/sun3/intersil.c   |  2 +-
 arch/m68k/sun3x/time.c      |  2 +-
 drivers/char/Kconfig        |  2 +-
 14 files changed, 7 insertions(+), 92 deletions(-)
 delete mode 100644 arch/m68k/include/asm/rtc.h

diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c
index 01693df7f2f6..ec9cc1fdd237 100644
--- a/arch/m68k/amiga/config.c
+++ b/arch/m68k/amiga/config.c
@@ -35,7 +35,6 @@
 #include <asm/amigahw.h>
 #include <asm/amigaints.h>
 #include <asm/irq.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 #include <asm/io.h>
 
diff --git a/arch/m68k/apollo/config.c b/arch/m68k/apollo/config.c
index 6e62d66c396e..432bc8bacfc2 100644
--- a/arch/m68k/apollo/config.c
+++ b/arch/m68k/apollo/config.c
@@ -15,7 +15,6 @@
 #include <asm/pgtable.h>
 #include <asm/apollohw.h>
 #include <asm/irq.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 
 u_long sio01_physaddr;
diff --git a/arch/m68k/bvme6000/config.c b/arch/m68k/bvme6000/config.c
index 478623dbb209..611d4d9ea2bd 100644
--- a/arch/m68k/bvme6000/config.c
+++ b/arch/m68k/bvme6000/config.c
@@ -34,7 +34,6 @@
 #include <asm/setup.h>
 #include <asm/irq.h>
 #include <asm/traps.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 #include <asm/bvme6000hw.h>
 
diff --git a/arch/m68k/hp300/config.c b/arch/m68k/hp300/config.c
index a9befe65adc4..7cfab158fb61 100644
--- a/arch/m68k/hp300/config.c
+++ b/arch/m68k/hp300/config.c
@@ -12,6 +12,7 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/console.h>
+#include <linux/rtc.h>
 
 #include <asm/bootinfo.h>
 #include <asm/bootinfo-hp300.h>
@@ -20,7 +21,6 @@
 #include <asm/blinken.h>
 #include <asm/io.h>                               /* readb() and writeb() */
 #include <asm/hp300hw.h>
-#include <asm/rtc.h>
 
 #include "time.h"
 
diff --git a/arch/m68k/include/asm/rtc.h b/arch/m68k/include/asm/rtc.h
deleted file mode 100644
index a4d08ea122ee..000000000000
--- a/arch/m68k/include/asm/rtc.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/* include/asm-m68k/rtc.h
- *
- * Copyright Richard Zidlicky
- * implementation details for genrtc/q40rtc driver
- */
-/* permission is hereby granted to copy, modify and redistribute this code
- * in terms of the GNU Library General Public License, Version 2 or later,
- * at your option.
- */
-
-#ifndef _ASM_RTC_H
-#define _ASM_RTC_H
-
-#ifdef __KERNEL__
-
-#include <linux/rtc.h>
-#include <asm/errno.h>
-#include <asm/machdep.h>
-
-#define RTC_PIE 0x40		/* periodic interrupt enable */
-#define RTC_AIE 0x20		/* alarm interrupt enable */
-#define RTC_UIE 0x10		/* update-finished interrupt enable */
-
-/* some dummy definitions */
-#define RTC_BATT_BAD 0x100	/* battery bad */
-#define RTC_SQWE 0x08		/* enable square-wave output */
-#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
-#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
-
-static inline unsigned int get_rtc_time(struct rtc_time *time)
-{
-	/*
-	 * Only the values that we read from the RTC are set. We leave
-	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
-	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
-	 * by the RTC when initially set to a non-zero value.
-	 */
-	if (mach_hwclk)
-		mach_hwclk(0, time);
-	return RTC_24H;
-}
-
-static inline int set_rtc_time(struct rtc_time *time)
-{
-	if (mach_hwclk)
-		return mach_hwclk(1, time);
-	return -EINVAL;
-}
-
-static inline unsigned int get_rtc_ss(void)
-{
-	if (mach_get_ss)
-		return mach_get_ss();
-	else{
-		struct rtc_time h;
-
-		get_rtc_time(&h);
-		return h.tm_sec;
-	}
-}
-
-static inline int get_rtc_pll(struct rtc_pll_info *pll)
-{
-	if (mach_get_rtc_pll)
-		return mach_get_rtc_pll(pll);
-	else
-		return -EINVAL;
-}
-static inline int set_rtc_pll(struct rtc_pll_info *pll)
-{
-	if (mach_set_rtc_pll)
-		return mach_set_rtc_pll(pll);
-	else
-		return -EINVAL;
-}
-#endif /* __KERNEL__ */
-
-#endif /* _ASM__RTC_H */
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index 689b47d292ac..2f33a33001e5 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -10,6 +10,7 @@
  * Miscellaneous linux stuff
  */
 
+#include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/mm.h>
@@ -25,6 +26,7 @@
 #include <linux/platform_device.h>
 #include <linux/adb.h>
 #include <linux/cuda.h>
+#include <linux/rtc.h>
 
 #include <asm/setup.h>
 #include <asm/bootinfo.h>
@@ -34,7 +36,6 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/pgtable.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 
 #include <asm/macintosh.h>
diff --git a/arch/m68k/mac/misc.c b/arch/m68k/mac/misc.c
index 707b61aea203..0fb54a90eac2 100644
--- a/arch/m68k/mac/misc.c
+++ b/arch/m68k/mac/misc.c
@@ -18,7 +18,6 @@
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
-#include <asm/rtc.h>
 #include <asm/segment.h>
 #include <asm/setup.h>
 #include <asm/macintosh.h>
diff --git a/arch/m68k/mvme147/config.c b/arch/m68k/mvme147/config.c
index e6a3b56c6481..c11d38dfad08 100644
--- a/arch/m68k/mvme147/config.c
+++ b/arch/m68k/mvme147/config.c
@@ -32,7 +32,6 @@
 #include <asm/setup.h>
 #include <asm/irq.h>
 #include <asm/traps.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 #include <asm/mvme147hw.h>
 
diff --git a/arch/m68k/mvme16x/config.c b/arch/m68k/mvme16x/config.c
index a53803cc66cd..58e240939d26 100644
--- a/arch/m68k/mvme16x/config.c
+++ b/arch/m68k/mvme16x/config.c
@@ -35,7 +35,6 @@
 #include <asm/setup.h>
 #include <asm/irq.h>
 #include <asm/traps.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 #include <asm/mvme16xhw.h>
 
diff --git a/arch/m68k/q40/config.c b/arch/m68k/q40/config.c
index e90fe903613e..fcb7f05b60b6 100644
--- a/arch/m68k/q40/config.c
+++ b/arch/m68k/q40/config.c
@@ -12,6 +12,7 @@
  * for more details.
  */
 
+#include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
@@ -27,7 +28,6 @@
 #include <linux/platform_device.h>
 
 #include <asm/io.h>
-#include <asm/rtc.h>
 #include <asm/bootinfo.h>
 #include <asm/pgtable.h>
 #include <asm/setup.h>
diff --git a/arch/m68k/sun3/config.c b/arch/m68k/sun3/config.c
index 71884bf01d72..3af34fa3a344 100644
--- a/arch/m68k/sun3/config.c
+++ b/arch/m68k/sun3/config.c
@@ -26,7 +26,6 @@
 #include <asm/pgalloc.h>
 #include <asm/sun3-head.h>
 #include <asm/sun3mmu.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 #include <asm/machines.h>
 #include <asm/idprom.h>
diff --git a/arch/m68k/sun3/intersil.c b/arch/m68k/sun3/intersil.c
index 889829e11f1d..2cd0bcbe6f30 100644
--- a/arch/m68k/sun3/intersil.c
+++ b/arch/m68k/sun3/intersil.c
@@ -14,8 +14,8 @@
 #include <linux/rtc.h>
 
 #include <asm/errno.h>
-#include <asm/rtc.h>
 #include <asm/intersil.h>
+#include <asm/machdep.h>
 
 
 /* bits to set for start/run of the intersil */
diff --git a/arch/m68k/sun3x/time.c b/arch/m68k/sun3x/time.c
index c8eb08add6b0..431d3c4306dd 100644
--- a/arch/m68k/sun3x/time.c
+++ b/arch/m68k/sun3x/time.c
@@ -15,10 +15,10 @@
 
 #include <asm/irq.h>
 #include <asm/io.h>
+#include <asm/machdep.h>
 #include <asm/traps.h>
 #include <asm/sun3x.h>
 #include <asm/sun3ints.h>
-#include <asm/rtc.h>
 
 #include "time.h"
 
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 074bc394e31b..fccac76257c9 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on M68K || PPC
+	depends on PPC
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
-- 
2.7.0

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From - Thu Nov 08 21:38:55 2018
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From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 07/16] rtc: parisc: provide rtc_class_ops directly
Date: Mon, 30 May 2016 20:57:55 +0200
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Xref: news.gmane.org gmane.linux.drivers.rtc:33 gmane.linux.ports.alpha:3739 gmane.linux.kernel:2230337 gmane.linux.ports.parisc:26793 gmane.linux.ports.ppc64.devel:127841 gmane.linux.ports.sh.devel:54126 gmane.linux.kernel.cross-arch:32173
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/33>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and on pa-risc, that is implemented using an open-coded
version of rtc_time_to_tm/rtc_tm_to_time.

This changes the parisc rtc-generic device to provide its
rtc_class_ops directly, using the normal helper functions,
which makes this y2038 safe (on 32-bit) and simplifies
the implementation.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 arch/parisc/kernel/time.c | 36 +++++++++++++++++++++++++++++++++++-
 drivers/rtc/rtc-generic.c |  3 +--
 2 files changed, 36 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 58dd6801f5be..744878789752 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -12,6 +12,7 @@
  */
 #include <linux/errno.h>
 #include <linux/module.h>
+#include <linux/rtc.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/param.h>
@@ -248,14 +249,47 @@ void __init start_cpu_itimer(void)
 	per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
+#if IS_ENABLED(CONFIG_RTC_DRV_GENERIC)
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	struct pdc_tod tod_data;
+
+	memset(tm, 0, sizeof(*tm));
+	if (pdc_tod_read(&tod_data) < 0)
+		return -EOPNOTSUPP;
+
+	/* we treat tod_sec as unsigned, so this can work until year 2106 */
+	rtc_time64_to_tm(tod_data.tod_sec, tm);
+	return rtc_valid_tm(tm);
+}
+
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	time64_t secs = rtc_tm_to_time64(tm);
+
+	if (pdc_tod_set(secs, 0) < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
+static const struct rtc_class_ops rtc_generic_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
+
 static int __init rtc_init(void)
 {
 	struct platform_device *pdev;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &rtc_generic_ops,
+					     sizeof(rtc_generic_ops));
+
 	return PTR_ERR_OR_ZERO(pdev);
 }
 device_initcall(rtc_init);
+#endif
 
 void read_persistent_clock(struct timespec *ts)
 {
diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
index 3958e87a05fa..92b5e02a3750 100644
--- a/drivers/rtc/rtc-generic.c
+++ b/drivers/rtc/rtc-generic.c
@@ -9,8 +9,7 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 
-#if defined(CONFIG_M68K) || defined(CONFIG_PARISC) || \
-    defined(CONFIG_PPC)
+#if defined(CONFIG_M68K) || defined(CONFIG_PPC)
 #include <asm/rtc.h>
 
 static int generic_get_time(struct device *dev, struct rtc_time *tm)
-- 
2.7.0

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From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 09/16] rtc: m68k: provide rtc_class_ops directly
Date: Mon, 30 May 2016 20:57:57 +0200
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Xref: news.gmane.org gmane.linux.drivers.rtc:34 gmane.linux.ports.alpha:3740 gmane.linux.kernel:2230338 gmane.linux.ports.parisc:26794 gmane.linux.ports.ppc64.devel:127842 gmane.linux.ports.sh.devel:54127 gmane.linux.kernel.cross-arch:32174
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/34>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and m68k has another abstraction on top, which is a bit
silly.

This changes the m68k rtc-generic device to provide its
rtc_class_ops directly, to reduce the number of layers
by one.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 arch/m68k/kernel/time.c   | 23 +++++++++++++++++++++--
 drivers/rtc/rtc-generic.c |  2 +-
 2 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 3857737e3958..bd6417d38d5a 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -86,7 +86,24 @@ void read_persistent_clock(struct timespec *ts)
 	}
 }
 
-#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
+#if defined(CONFIG_ARCH_USES_GETTIMEOFFSET) && IS_ENABLED(CONFIG_RTC_DRV_GENERIC)
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	mach_hwclk(0, tm);
+	return rtc_valid_tm(tm);
+}
+
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	if (mach_hwclk(1, tm) < 0)
+		return -EOPNOTSUPP;
+	return 0;
+}
+
+static const struct rtc_class_ops generic_rtc_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
 
 static int __init rtc_init(void)
 {
@@ -95,7 +112,9 @@ static int __init rtc_init(void)
 	if (!mach_hwclk)
 		return -ENODEV;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &generic_rtc_ops,
+					     sizeof(generic_rtc_ops));
 	return PTR_ERR_OR_ZERO(pdev);
 }
 
diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
index 92b5e02a3750..5c82bae73b9c 100644
--- a/drivers/rtc/rtc-generic.c
+++ b/drivers/rtc/rtc-generic.c
@@ -9,7 +9,7 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 
-#if defined(CONFIG_M68K) || defined(CONFIG_PPC)
+#if defined(CONFIG_PPC)
 #include <asm/rtc.h>
 
 static int generic_get_time(struct device *dev, struct rtc_time *tm)
-- 
2.7.0

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From - Thu Nov 08 21:38:55 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 06/16] char/genrtc: remove mn10300 support
Date: Mon, 30 May 2016 20:57:54 +0200
Lines: 98
Approved: news@gmane.org
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Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
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To: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
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Xref: news.gmane.org gmane.linux.drivers.rtc:35 gmane.linux.ports.alpha:3741 gmane.linux.kernel:2230339 gmane.linux.ports.parisc:26795 gmane.linux.ports.ppc64.devel:127843 gmane.linux.ports.sh.devel:54128 gmane.linux.kernel.cross-arch:32175
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/35>

The genrtc driver serves no purpose on mn10300 because it drives the
same hardware as the original rtc.c driver, and the newer rtc-generic.c
or rtc-cmos.c drivers on architectures that use the asm-generic/rtc.h
header.

I assume it was initially only added for completeness when the
mn10300 port was done, but the older rtc.c driver was always used
instead.

We can also stop include asm-generic/rtc.h now, because we
just call mc146818_set_time() directly.

It would be nice to change the architecture to use the rtc-cmos driver
next, and remove support for the old rtc driver as well.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 arch/mn10300/include/asm/rtc.h          | 2 --
 arch/mn10300/kernel/rtc.c               | 2 +-
 arch/mn10300/proc-mn103e010/proc-init.c | 1 +
 arch/mn10300/proc-mn2ws0050/proc-init.c | 1 +
 drivers/char/Kconfig                    | 2 +-
 5 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/mn10300/include/asm/rtc.h b/arch/mn10300/include/asm/rtc.h
index 6c14bb1d0d9b..07dc87656197 100644
--- a/arch/mn10300/include/asm/rtc.h
+++ b/arch/mn10300/include/asm/rtc.h
@@ -25,6 +25,4 @@ static inline void calibrate_clock(void)
 
 #endif /* !CONFIG_MN10300_RTC */
 
-#include <asm-generic/rtc.h>
-
 #endif /* _ASM_RTC_H */
diff --git a/arch/mn10300/kernel/rtc.c b/arch/mn10300/kernel/rtc.c
index 48d7058b3295..77e0be4d92ea 100644
--- a/arch/mn10300/kernel/rtc.c
+++ b/arch/mn10300/kernel/rtc.c
@@ -27,7 +27,7 @@ void read_persistent_clock(struct timespec *ts)
 {
 	struct rtc_time tm;
 
-	get_rtc_time(&tm);
+	mc146818_set_time(&tm);
 
 	ts->tv_nsec = 0;
 	ts->tv_sec = mktime(tm.tm_year, tm.tm_mon, tm.tm_mday,
diff --git a/arch/mn10300/proc-mn103e010/proc-init.c b/arch/mn10300/proc-mn103e010/proc-init.c
index 27b97980dca4..d4dcb0c56b35 100644
--- a/arch/mn10300/proc-mn103e010/proc-init.c
+++ b/arch/mn10300/proc-mn103e010/proc-init.c
@@ -9,6 +9,7 @@
  * 2 of the Licence, or (at your option) any later version.
  */
 #include <linux/kernel.h>
+#include <asm/cacheflush.h>
 #include <asm/fpu.h>
 #include <asm/rtc.h>
 #include <asm/busctl-regs.h>
diff --git a/arch/mn10300/proc-mn2ws0050/proc-init.c b/arch/mn10300/proc-mn2ws0050/proc-init.c
index ee6d03dbc8d8..950cc8dbb284 100644
--- a/arch/mn10300/proc-mn2ws0050/proc-init.c
+++ b/arch/mn10300/proc-mn2ws0050/proc-init.c
@@ -14,6 +14,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 
+#include <asm/cacheflush.h>
 #include <asm/processor.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index e3f2f3e293e5..1d9e3063373b 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on M68K || MN10300 || PARISC || PPC
+	depends on M68K || PARISC || PPC
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
-- 
2.7.0

-- 
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From - Thu Nov 08 21:38:55 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 02/16] rtc: cmos: move mc146818rtc code out of asm-generic/rtc.h
Date: Mon, 30 May 2016 20:57:50 +0200
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Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/36>

Drivers should not really include stuff from asm-generic directly,
and the PC-style cmos rtc driver does this in order to reuse the
mc146818 implementation of get_rtc_time/set_rtc_time rather than
the architecture specific one for the architecture it gets built for.

To make it more obvious what is going on, this moves and renames the
two functions into include/linux/mc146818rtc.h, which holds the
other mc146818 specific code. Ideally it would be in a .c file,
but that would require extra infrastructure as the functions are
called by multiple drivers with conflicting dependencies.

With this change, the asm-generic/rtc.h header also becomes much
more generic, so it can be reused more easily across any architecture
that still relies on the genrtc driver.

The only caller of the internal __get_rtc_time/__set_rtc_time
functions is in arch/alpha/kernel/rtc.c, and we just change those
over to the new naming.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Acked-by: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
---
 arch/alpha/kernel/rtc.c                      |   6 +-
 arch/x86/include/asm/mc146818rtc.h           |   1 -
 arch/x86/platform/efi/efi_64.c               |   1 +
 arch/x86/platform/intel-mid/intel_mid_vrtc.c |   1 +
 drivers/rtc/rtc-cmos.c                       |  12 +-
 include/asm-generic/rtc.h                    | 206 +--------------------------
 include/linux/mc146818rtc.h                  | 194 +++++++++++++++++++++++++
 7 files changed, 209 insertions(+), 212 deletions(-)

diff --git a/arch/alpha/kernel/rtc.c b/arch/alpha/kernel/rtc.c
index f535a3fd0f60..ceed68c7500b 100644
--- a/arch/alpha/kernel/rtc.c
+++ b/arch/alpha/kernel/rtc.c
@@ -15,8 +15,6 @@
 #include <linux/rtc.h>
 #include <linux/platform_device.h>
 
-#include <asm/rtc.h>
-
 #include "proto.h"
 
 
@@ -81,7 +79,7 @@ init_rtc_epoch(void)
 static int
 alpha_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	__get_rtc_time(tm);
+	mc146818_get_time(tm);
 
 	/* Adjust for non-default epochs.  It's easier to depend on the
 	   generic __get_rtc_time and adjust the epoch here than create
@@ -112,7 +110,7 @@ alpha_rtc_set_time(struct device *dev, struct rtc_time *tm)
 		tm = &xtm;
 	}
 
-	return __set_rtc_time(tm);
+	return mc146818_set_time(tm);
 }
 
 static int
diff --git a/arch/x86/include/asm/mc146818rtc.h b/arch/x86/include/asm/mc146818rtc.h
index 0f555cc31984..24acd9ba7837 100644
--- a/arch/x86/include/asm/mc146818rtc.h
+++ b/arch/x86/include/asm/mc146818rtc.h
@@ -6,7 +6,6 @@
 
 #include <asm/io.h>
 #include <asm/processor.h>
-#include <linux/mc146818rtc.h>
 
 #ifndef RTC_PORT
 #define RTC_PORT(x)	(0x70 + (x))
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 6e7242be1c87..663c282801f3 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -25,6 +25,7 @@
 #include <linux/bootmem.h>
 #include <linux/ioport.h>
 #include <linux/module.h>
+#include <linux/mc146818rtc.h>
 #include <linux/efi.h>
 #include <linux/uaccess.h>
 #include <linux/io.h>
diff --git a/arch/x86/platform/intel-mid/intel_mid_vrtc.c b/arch/x86/platform/intel-mid/intel_mid_vrtc.c
index ee40fcb6e54d..58024862a7eb 100644
--- a/arch/x86/platform/intel-mid/intel_mid_vrtc.c
+++ b/arch/x86/platform/intel-mid/intel_mid_vrtc.c
@@ -22,6 +22,7 @@
 #include <linux/init.h>
 #include <linux/sfi.h>
 #include <linux/platform_device.h>
+#include <linux/mc146818rtc.h>
 
 #include <asm/intel-mid.h>
 #include <asm/intel_mid_vrtc.h>
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index fbe9c72438e1..cf8eb98382ce 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -43,7 +43,7 @@
 #include <linux/of_platform.h>
 
 /* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */
-#include <asm-generic/rtc.h>
+#include <linux/mc146818rtc.h>
 
 struct cmos_rtc {
 	struct rtc_device	*rtc;
@@ -190,10 +190,10 @@ static inline void cmos_write_bank2(unsigned char val, unsigned char addr)
 static int cmos_read_time(struct device *dev, struct rtc_time *t)
 {
 	/* REVISIT:  if the clock has a "century" register, use
-	 * that instead of the heuristic in get_rtc_time().
+	 * that instead of the heuristic in mc146818_get_time().
 	 * That'll make Y3K compatility (year > 2070) easy!
 	 */
-	get_rtc_time(t);
+	mc146818_get_time(t);
 	return 0;
 }
 
@@ -205,7 +205,7 @@ static int cmos_set_time(struct device *dev, struct rtc_time *t)
 	 * takes effect exactly 500ms after we write the register.
 	 * (Also queueing and other delays before we get this far.)
 	 */
-	return set_rtc_time(t);
+	return mc146818_set_time(t);
 }
 
 static int cmos_read_alarm(struct device *dev, struct rtc_wkalrm *t)
@@ -1142,14 +1142,14 @@ static __init void cmos_of_init(struct platform_device *pdev)
 	if (val)
 		CMOS_WRITE(be32_to_cpup(val), RTC_FREQ_SELECT);
 
-	get_rtc_time(&time);
+	cmos_read_time(&pdev->dev, &time);
 	ret = rtc_valid_tm(&time);
 	if (ret) {
 		struct rtc_time def_time = {
 			.tm_year = 1,
 			.tm_mday = 1,
 		};
-		set_rtc_time(&def_time);
+		cmos_set_time(&pdev->dev, &def_time);
 	}
 }
 #else
diff --git a/include/asm-generic/rtc.h b/include/asm-generic/rtc.h
index 4e3b6558331e..4fcff22cd707 100644
--- a/include/asm-generic/rtc.h
+++ b/include/asm-generic/rtc.h
@@ -12,12 +12,12 @@
 #ifndef __ASM_RTC_H__
 #define __ASM_RTC_H__
 
-#include <linux/mc146818rtc.h>
 #include <linux/rtc.h>
-#include <linux/bcd.h>
-#include <linux/delay.h>
-#ifdef CONFIG_ACPI
-#include <linux/acpi.h>
+
+#ifndef get_rtc_time
+#include <linux/mc146818rtc.h>
+#define get_rtc_time mc146818_get_time
+#define set_rtc_time mc146818_set_time
 #endif
 
 #define RTC_PIE 0x40		/* periodic interrupt enable */
@@ -31,202 +31,6 @@
 #define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
 #define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
 
-/*
- * Returns true if a clock update is in progress
- */
-static inline unsigned char rtc_is_updating(void)
-{
-	unsigned char uip;
-	unsigned long flags;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-	uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP);
-	spin_unlock_irqrestore(&rtc_lock, flags);
-	return uip;
-}
-
-static inline unsigned int __get_rtc_time(struct rtc_time *time)
-{
-	unsigned char ctrl;
-	unsigned long flags;
-	unsigned char century = 0;
-
-#ifdef CONFIG_MACH_DECSTATION
-	unsigned int real_year;
-#endif
-
-	/*
-	 * read RTC once any update in progress is done. The update
-	 * can take just over 2ms. We wait 20ms. There is no need to
-	 * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
-	 * If you need to know *exactly* when a second has started, enable
-	 * periodic update complete interrupts, (via ioctl) and then 
-	 * immediately read /dev/rtc which will block until you get the IRQ.
-	 * Once the read clears, read the RTC time (again via ioctl). Easy.
-	 */
-	if (rtc_is_updating())
-		mdelay(20);
-
-	/*
-	 * Only the values that we read from the RTC are set. We leave
-	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
-	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
-	 * by the RTC when initially set to a non-zero value.
-	 */
-	spin_lock_irqsave(&rtc_lock, flags);
-	time->tm_sec = CMOS_READ(RTC_SECONDS);
-	time->tm_min = CMOS_READ(RTC_MINUTES);
-	time->tm_hour = CMOS_READ(RTC_HOURS);
-	time->tm_mday = CMOS_READ(RTC_DAY_OF_MONTH);
-	time->tm_mon = CMOS_READ(RTC_MONTH);
-	time->tm_year = CMOS_READ(RTC_YEAR);
-#ifdef CONFIG_MACH_DECSTATION
-	real_year = CMOS_READ(RTC_DEC_YEAR);
-#endif
-#ifdef CONFIG_ACPI
-	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
-	    acpi_gbl_FADT.century)
-		century = CMOS_READ(acpi_gbl_FADT.century);
-#endif
-	ctrl = CMOS_READ(RTC_CONTROL);
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
-	{
-		time->tm_sec = bcd2bin(time->tm_sec);
-		time->tm_min = bcd2bin(time->tm_min);
-		time->tm_hour = bcd2bin(time->tm_hour);
-		time->tm_mday = bcd2bin(time->tm_mday);
-		time->tm_mon = bcd2bin(time->tm_mon);
-		time->tm_year = bcd2bin(time->tm_year);
-		century = bcd2bin(century);
-	}
-
-#ifdef CONFIG_MACH_DECSTATION
-	time->tm_year += real_year - 72;
-#endif
-
-	if (century)
-		time->tm_year += (century - 19) * 100;
-
-	/*
-	 * Account for differences between how the RTC uses the values
-	 * and how they are defined in a struct rtc_time;
-	 */
-	if (time->tm_year <= 69)
-		time->tm_year += 100;
-
-	time->tm_mon--;
-
-	return RTC_24H;
-}
-
-#ifndef get_rtc_time
-#define get_rtc_time	__get_rtc_time
-#endif
-
-/* Set the current date and time in the real time clock. */
-static inline int __set_rtc_time(struct rtc_time *time)
-{
-	unsigned long flags;
-	unsigned char mon, day, hrs, min, sec;
-	unsigned char save_control, save_freq_select;
-	unsigned int yrs;
-#ifdef CONFIG_MACH_DECSTATION
-	unsigned int real_yrs, leap_yr;
-#endif
-	unsigned char century = 0;
-
-	yrs = time->tm_year;
-	mon = time->tm_mon + 1;   /* tm_mon starts at zero */
-	day = time->tm_mday;
-	hrs = time->tm_hour;
-	min = time->tm_min;
-	sec = time->tm_sec;
-
-	if (yrs > 255)	/* They are unsigned */
-		return -EINVAL;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-#ifdef CONFIG_MACH_DECSTATION
-	real_yrs = yrs;
-	leap_yr = ((!((yrs + 1900) % 4) && ((yrs + 1900) % 100)) ||
-			!((yrs + 1900) % 400));
-	yrs = 72;
-
-	/*
-	 * We want to keep the year set to 73 until March
-	 * for non-leap years, so that Feb, 29th is handled
-	 * correctly.
-	 */
-	if (!leap_yr && mon < 3) {
-		real_yrs--;
-		yrs = 73;
-	}
-#endif
-
-#ifdef CONFIG_ACPI
-	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
-	    acpi_gbl_FADT.century) {
-		century = (yrs + 1900) / 100;
-		yrs %= 100;
-	}
-#endif
-
-	/* These limits and adjustments are independent of
-	 * whether the chip is in binary mode or not.
-	 */
-	if (yrs > 169) {
-		spin_unlock_irqrestore(&rtc_lock, flags);
-		return -EINVAL;
-	}
-
-	if (yrs >= 100)
-		yrs -= 100;
-
-	if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY)
-	    || RTC_ALWAYS_BCD) {
-		sec = bin2bcd(sec);
-		min = bin2bcd(min);
-		hrs = bin2bcd(hrs);
-		day = bin2bcd(day);
-		mon = bin2bcd(mon);
-		yrs = bin2bcd(yrs);
-		century = bin2bcd(century);
-	}
-
-	save_control = CMOS_READ(RTC_CONTROL);
-	CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
-	save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
-	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
-
-#ifdef CONFIG_MACH_DECSTATION
-	CMOS_WRITE(real_yrs, RTC_DEC_YEAR);
-#endif
-	CMOS_WRITE(yrs, RTC_YEAR);
-	CMOS_WRITE(mon, RTC_MONTH);
-	CMOS_WRITE(day, RTC_DAY_OF_MONTH);
-	CMOS_WRITE(hrs, RTC_HOURS);
-	CMOS_WRITE(min, RTC_MINUTES);
-	CMOS_WRITE(sec, RTC_SECONDS);
-#ifdef CONFIG_ACPI
-	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
-	    acpi_gbl_FADT.century)
-		CMOS_WRITE(century, acpi_gbl_FADT.century);
-#endif
-
-	CMOS_WRITE(save_control, RTC_CONTROL);
-	CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
-
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	return 0;
-}
-
-#ifndef set_rtc_time
-#define set_rtc_time	__set_rtc_time
-#endif
-
 static inline unsigned int get_rtc_ss(void)
 {
 	struct rtc_time h;
diff --git a/include/linux/mc146818rtc.h b/include/linux/mc146818rtc.h
index 433e0c74d643..e9e346b37846 100644
--- a/include/linux/mc146818rtc.h
+++ b/include/linux/mc146818rtc.h
@@ -14,6 +14,12 @@
 #include <asm/io.h>
 #include <linux/rtc.h>			/* get the user-level API */
 #include <asm/mc146818rtc.h>		/* register access macros */
+#include <linux/bcd.h>
+#include <linux/delay.h>
+
+#ifdef CONFIG_ACPI
+#include <linux/acpi.h>
+#endif
 
 #ifdef __KERNEL__
 #include <linux/spinlock.h>		/* spinlock_t */
@@ -120,4 +126,192 @@ struct cmos_rtc_board_info {
 #define RTC_IO_EXTENT_USED      RTC_IO_EXTENT
 #endif /* ARCH_RTC_LOCATION */
 
+/*
+ * Returns true if a clock update is in progress
+ */
+static inline unsigned char mc146818_is_updating(void)
+{
+	unsigned char uip;
+	unsigned long flags;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+	uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP);
+	spin_unlock_irqrestore(&rtc_lock, flags);
+	return uip;
+}
+
+static inline unsigned int mc146818_get_time(struct rtc_time *time)
+{
+	unsigned char ctrl;
+	unsigned long flags;
+	unsigned char century = 0;
+
+#ifdef CONFIG_MACH_DECSTATION
+	unsigned int real_year;
+#endif
+
+	/*
+	 * read RTC once any update in progress is done. The update
+	 * can take just over 2ms. We wait 20ms. There is no need to
+	 * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
+	 * If you need to know *exactly* when a second has started, enable
+	 * periodic update complete interrupts, (via ioctl) and then 
+	 * immediately read /dev/rtc which will block until you get the IRQ.
+	 * Once the read clears, read the RTC time (again via ioctl). Easy.
+	 */
+	if (mc146818_is_updating())
+		mdelay(20);
+
+	/*
+	 * Only the values that we read from the RTC are set. We leave
+	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
+	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
+	 * by the RTC when initially set to a non-zero value.
+	 */
+	spin_lock_irqsave(&rtc_lock, flags);
+	time->tm_sec = CMOS_READ(RTC_SECONDS);
+	time->tm_min = CMOS_READ(RTC_MINUTES);
+	time->tm_hour = CMOS_READ(RTC_HOURS);
+	time->tm_mday = CMOS_READ(RTC_DAY_OF_MONTH);
+	time->tm_mon = CMOS_READ(RTC_MONTH);
+	time->tm_year = CMOS_READ(RTC_YEAR);
+#ifdef CONFIG_MACH_DECSTATION
+	real_year = CMOS_READ(RTC_DEC_YEAR);
+#endif
+#ifdef CONFIG_ACPI
+	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
+	    acpi_gbl_FADT.century)
+		century = CMOS_READ(acpi_gbl_FADT.century);
+#endif
+	ctrl = CMOS_READ(RTC_CONTROL);
+	spin_unlock_irqrestore(&rtc_lock, flags);
+
+	if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
+	{
+		time->tm_sec = bcd2bin(time->tm_sec);
+		time->tm_min = bcd2bin(time->tm_min);
+		time->tm_hour = bcd2bin(time->tm_hour);
+		time->tm_mday = bcd2bin(time->tm_mday);
+		time->tm_mon = bcd2bin(time->tm_mon);
+		time->tm_year = bcd2bin(time->tm_year);
+		century = bcd2bin(century);
+	}
+
+#ifdef CONFIG_MACH_DECSTATION
+	time->tm_year += real_year - 72;
+#endif
+
+	if (century)
+		time->tm_year += (century - 19) * 100;
+
+	/*
+	 * Account for differences between how the RTC uses the values
+	 * and how they are defined in a struct rtc_time;
+	 */
+	if (time->tm_year <= 69)
+		time->tm_year += 100;
+
+	time->tm_mon--;
+
+	return RTC_24H;
+}
+
+/* Set the current date and time in the real time clock. */
+static inline int mc146818_set_time(struct rtc_time *time)
+{
+	unsigned long flags;
+	unsigned char mon, day, hrs, min, sec;
+	unsigned char save_control, save_freq_select;
+	unsigned int yrs;
+#ifdef CONFIG_MACH_DECSTATION
+	unsigned int real_yrs, leap_yr;
+#endif
+	unsigned char century = 0;
+
+	yrs = time->tm_year;
+	mon = time->tm_mon + 1;   /* tm_mon starts at zero */
+	day = time->tm_mday;
+	hrs = time->tm_hour;
+	min = time->tm_min;
+	sec = time->tm_sec;
+
+	if (yrs > 255)	/* They are unsigned */
+		return -EINVAL;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+#ifdef CONFIG_MACH_DECSTATION
+	real_yrs = yrs;
+	leap_yr = ((!((yrs + 1900) % 4) && ((yrs + 1900) % 100)) ||
+			!((yrs + 1900) % 400));
+	yrs = 72;
+
+	/*
+	 * We want to keep the year set to 73 until March
+	 * for non-leap years, so that Feb, 29th is handled
+	 * correctly.
+	 */
+	if (!leap_yr && mon < 3) {
+		real_yrs--;
+		yrs = 73;
+	}
+#endif
+
+#ifdef CONFIG_ACPI
+	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
+	    acpi_gbl_FADT.century) {
+		century = (yrs + 1900) / 100;
+		yrs %= 100;
+	}
+#endif
+
+	/* These limits and adjustments are independent of
+	 * whether the chip is in binary mode or not.
+	 */
+	if (yrs > 169) {
+		spin_unlock_irqrestore(&rtc_lock, flags);
+		return -EINVAL;
+	}
+
+	if (yrs >= 100)
+		yrs -= 100;
+
+	if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY)
+	    || RTC_ALWAYS_BCD) {
+		sec = bin2bcd(sec);
+		min = bin2bcd(min);
+		hrs = bin2bcd(hrs);
+		day = bin2bcd(day);
+		mon = bin2bcd(mon);
+		yrs = bin2bcd(yrs);
+		century = bin2bcd(century);
+	}
+
+	save_control = CMOS_READ(RTC_CONTROL);
+	CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
+	save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
+	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
+
+#ifdef CONFIG_MACH_DECSTATION
+	CMOS_WRITE(real_yrs, RTC_DEC_YEAR);
+#endif
+	CMOS_WRITE(yrs, RTC_YEAR);
+	CMOS_WRITE(mon, RTC_MONTH);
+	CMOS_WRITE(day, RTC_DAY_OF_MONTH);
+	CMOS_WRITE(hrs, RTC_HOURS);
+	CMOS_WRITE(min, RTC_MINUTES);
+	CMOS_WRITE(sec, RTC_SECONDS);
+#ifdef CONFIG_ACPI
+	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
+	    acpi_gbl_FADT.century)
+		CMOS_WRITE(century, acpi_gbl_FADT.century);
+#endif
+
+	CMOS_WRITE(save_control, RTC_CONTROL);
+	CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
+
+	spin_unlock_irqrestore(&rtc_lock, flags);
+
+	return 0;
+}
+
 #endif /* _MC146818RTC_H */
-- 
2.7.0

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From - Thu Nov 08 21:38:56 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 08/16] char/genrtc: remove parisc support
Date: Mon, 30 May 2016 20:57:56 +0200
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Xref: news.gmane.org gmane.linux.drivers.rtc:37 gmane.linux.ports.alpha:3743 gmane.linux.kernel:2230341 gmane.linux.ports.parisc:26797 gmane.linux.ports.ppc64.devel:127845 gmane.linux.ports.sh.devel:54130 gmane.linux.kernel.cross-arch:32177
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/37>

This architecture selects RTC_CLASS unconditionally, so the GEN_RTC
has not worked here for a long time.

Now we can remove both the asm/rtc.h header and the Kconfig dependency
for CONFIG_GEN_RTC.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 arch/parisc/include/asm/rtc.h | 131 ------------------------------------------
 drivers/char/Kconfig          |   2 +-
 2 files changed, 1 insertion(+), 132 deletions(-)
 delete mode 100644 arch/parisc/include/asm/rtc.h

diff --git a/arch/parisc/include/asm/rtc.h b/arch/parisc/include/asm/rtc.h
deleted file mode 100644
index 099d641a42c2..000000000000
--- a/arch/parisc/include/asm/rtc.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/* 
- * include/asm-parisc/rtc.h
- *
- * Copyright 2002 Randolph CHung <tausq-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
- *
- * Based on: include/asm-ppc/rtc.h and the genrtc driver in the
- * 2.4 parisc linux tree
- */
-
-#ifndef __ASM_RTC_H__
-#define __ASM_RTC_H__
-
-#ifdef __KERNEL__
-
-#include <linux/rtc.h>
-
-#include <asm/pdc.h>
-
-#define SECS_PER_HOUR   (60 * 60)
-#define SECS_PER_DAY    (SECS_PER_HOUR * 24)
-
-
-#define RTC_PIE 0x40		/* periodic interrupt enable */
-#define RTC_AIE 0x20		/* alarm interrupt enable */
-#define RTC_UIE 0x10		/* update-finished interrupt enable */
-
-#define RTC_BATT_BAD 0x100	/* battery bad */
-
-/* some dummy definitions */
-#define RTC_SQWE 0x08		/* enable square-wave output */
-#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
-#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
-
-# define __isleap(year) \
-  ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
-
-/* How many days come before each month (0-12).  */
-static const unsigned short int __mon_yday[2][13] =
-{
-	/* Normal years.  */
-	{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
-	/* Leap years.  */
-	{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
-};
-
-static inline unsigned int get_rtc_time(struct rtc_time *wtime)
-{
-	struct pdc_tod tod_data;
-	long int days, rem, y;
-	const unsigned short int *ip;
-
-	memset(wtime, 0, sizeof(*wtime));
-	if (pdc_tod_read(&tod_data) < 0)
-		return RTC_24H | RTC_BATT_BAD;
-
-	// most of the remainder of this function is:
-//	Copyright (C) 1991, 1993, 1997, 1998 Free Software Foundation, Inc.
-//	This was originally a part of the GNU C Library.
-//      It is distributed under the GPL, and was swiped from offtime.c
-
-
-	days = tod_data.tod_sec / SECS_PER_DAY;
-	rem = tod_data.tod_sec % SECS_PER_DAY;
-
-	wtime->tm_hour = rem / SECS_PER_HOUR;
-	rem %= SECS_PER_HOUR;
-	wtime->tm_min = rem / 60;
-	wtime->tm_sec = rem % 60;
-
-	y = 1970;
-
-#define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
-#define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400))
-
-	while (days < 0 || days >= (__isleap (y) ? 366 : 365))
-	{
-		/* Guess a corrected year, assuming 365 days per year.  */
-		long int yg = y + days / 365 - (days % 365 < 0);
-
-		/* Adjust DAYS and Y to match the guessed year.  */
-		days -= ((yg - y) * 365
-			 + LEAPS_THRU_END_OF (yg - 1)
-			 - LEAPS_THRU_END_OF (y - 1));
-		y = yg;
-	}
-	wtime->tm_year = y - 1900;
-
-	ip = __mon_yday[__isleap(y)];
-	for (y = 11; days < (long int) ip[y]; --y)
-		continue;
-	days -= ip[y];
-	wtime->tm_mon = y;
-	wtime->tm_mday = days + 1;
-
-	return RTC_24H;
-}
-
-static int set_rtc_time(struct rtc_time *wtime)
-{
-	u_int32_t secs;
-
-	secs = mktime(wtime->tm_year + 1900, wtime->tm_mon + 1, wtime->tm_mday, 
-		      wtime->tm_hour, wtime->tm_min, wtime->tm_sec);
-
-	if(pdc_tod_set(secs, 0) < 0)
-		return -1;
-	else
-		return 0;
-
-}
-
-static inline unsigned int get_rtc_ss(void)
-{
-	struct rtc_time h;
-
-	get_rtc_time(&h);
-	return h.tm_sec;
-}
-
-static inline int get_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-static inline int set_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-
-#endif /* __KERNEL__ */
-#endif /* __ASM_RTC_H__ */
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 1d9e3063373b..074bc394e31b 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on M68K || PARISC || PPC
+	depends on M68K || PPC
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
-- 
2.7.0

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From - Thu Nov 08 21:38:56 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 12/16] rtc: powerpc: provide rtc_class_ops directly
Date: Mon, 30 May 2016 20:58:00 +0200
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Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
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To: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
Original-X-From: rtc-linux+bncBDEKVJM7XAHRBPU2WK5AKGQEYDMY6AY-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org Mon May 30 20:58:13 2016
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Xref: news.gmane.org gmane.linux.drivers.rtc:38 gmane.linux.ports.alpha:3744 gmane.linux.kernel:2230342 gmane.linux.ports.parisc:26798 gmane.linux.ports.ppc64.devel:127846 gmane.linux.ports.sh.devel:54131 gmane.linux.kernel.cross-arch:32178
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/38>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and powerpc has another abstraction on top, which is a bit
silly.

This changes the powerpc rtc-generic device to provide its
rtc_class_ops directly, to reduce the number of layers
by one.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 arch/powerpc/kernel/time.c | 29 ++++++++++++++++++++++++++++-
 drivers/rtc/rtc-generic.c  |  2 +-
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 3ed9a5a21d77..7a482a7f4d8d 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -56,6 +56,7 @@
 #include <linux/irq_work.h>
 #include <linux/clk-provider.h>
 #include <linux/suspend.h>
+#include <linux/rtc.h>
 #include <asm/trace.h>
 
 #include <asm/io.h>
@@ -1081,6 +1082,29 @@ void calibrate_delay(void)
 	loops_per_jiffy = tb_ticks_per_jiffy;
 }
 
+#if IS_ENABLED(CONFIG_RTC_DRV_GENERIC)
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	ppc_md.get_rtc_time(tm);
+	return rtc_valid_tm(tm);
+}
+
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	if (!ppc_md.set_rtc_time)
+		return -EOPNOTSUPP;
+
+	if (ppc_md.set_rtc_time(tm) < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
+static const struct rtc_class_ops rtc_generic_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
+
 static int __init rtc_init(void)
 {
 	struct platform_device *pdev;
@@ -1088,9 +1112,12 @@ static int __init rtc_init(void)
 	if (!ppc_md.get_rtc_time)
 		return -ENODEV;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &rtc_generic_ops,
+					     sizeof(rtc_generic_ops));
 
 	return PTR_ERR_OR_ZERO(pdev);
 }
 
 device_initcall(rtc_init);
+#endif
diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
index 5c82bae73b9c..efcb9833cac8 100644
--- a/drivers/rtc/rtc-generic.c
+++ b/drivers/rtc/rtc-generic.c
@@ -9,7 +9,7 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 
-#if defined(CONFIG_PPC)
+#if 0
 #include <asm/rtc.h>
 
 static int generic_get_time(struct device *dev, struct rtc_time *tm)
-- 
2.7.0

-- 
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From - Thu Nov 08 21:38:56 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 13/16] char/genrtc: remove powerpc support
Date: Mon, 30 May 2016 20:58:01 +0200
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Xref: news.gmane.org gmane.linux.drivers.rtc:39 gmane.linux.ports.alpha:3745 gmane.linux.kernel:2230343 gmane.linux.ports.parisc:26799 gmane.linux.ports.ppc64.devel:127847 gmane.linux.ports.sh.devel:54132 gmane.linux.kernel.cross-arch:32179
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/39>

PowerPC is the last architecture using the GEN_RTC driver on some
machines, but we can migrate them all to using the RTC_DRV_GENERIC
driver instead now.

This moves over the CONFIG_GEN_RTC option from drivers/char into
arch/powerpc/platforms/Kconfig and makes it just select the
replacement driver instead, for the only reason of not breaking
existing defconfig and .config files that users may have.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 arch/powerpc/include/asm/rtc.h    | 78 ---------------------------------------
 arch/powerpc/platforms/Kconfig    | 11 ++++++
 arch/powerpc/platforms/ps3/time.c |  2 +-
 drivers/char/Kconfig              |  4 +-
 drivers/char/Makefile             |  2 +-
 5 files changed, 15 insertions(+), 82 deletions(-)
 delete mode 100644 arch/powerpc/include/asm/rtc.h

diff --git a/arch/powerpc/include/asm/rtc.h b/arch/powerpc/include/asm/rtc.h
deleted file mode 100644
index f5802926b6c0..000000000000
--- a/arch/powerpc/include/asm/rtc.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Real-time clock definitions and interfaces
- *
- * Author: Tom Rini <trini-Igf4POYTYCDQT0dZR+AlfA@public.gmane.org>
- *
- * 2002 (c) MontaVista, Software, Inc.  This file is licensed under
- * the terms of the GNU General Public License version 2.  This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Based on:
- * include/asm-m68k/rtc.h
- *
- * Copyright Richard Zidlicky
- * implementation details for genrtc/q40rtc driver
- *
- * And the old drivers/macintosh/rtc.c which was heavily based on:
- * Linux/SPARC Real Time Clock Driver
- * Copyright (C) 1996 Thomas K. Dyas (tdyas-plZrL8KR64B+CIkdHa1UOg@public.gmane.org)
- *
- * With additional work by Paul Mackerras and Franz Sirl.
- */
-
-#ifndef __ASM_POWERPC_RTC_H__
-#define __ASM_POWERPC_RTC_H__
-
-#ifdef __KERNEL__
-
-#include <linux/rtc.h>
-
-#include <asm/machdep.h>
-#include <asm/time.h>
-
-#define RTC_PIE 0x40		/* periodic interrupt enable */
-#define RTC_AIE 0x20		/* alarm interrupt enable */
-#define RTC_UIE 0x10		/* update-finished interrupt enable */
-
-/* some dummy definitions */
-#define RTC_BATT_BAD 0x100	/* battery bad */
-#define RTC_SQWE 0x08		/* enable square-wave output */
-#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
-#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
-
-static inline unsigned int get_rtc_time(struct rtc_time *time)
-{
-	if (ppc_md.get_rtc_time)
-		ppc_md.get_rtc_time(time);
-	return RTC_24H;
-}
-
-/* Set the current date and time in the real time clock. */
-static inline int set_rtc_time(struct rtc_time *time)
-{
-	if (ppc_md.set_rtc_time)
-		return ppc_md.set_rtc_time(time);
-	return -EINVAL;
-}
-
-static inline unsigned int get_rtc_ss(void)
-{
-	struct rtc_time h;
-
-	get_rtc_time(&h);
-	return h.tm_sec;
-}
-
-static inline int get_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-static inline int set_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-
-#endif /* __KERNEL__ */
-#endif /* __ASM_POWERPC_RTC_H__ */
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 46a3533d3acb..863aa4341390 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -321,6 +321,17 @@ config OF_RTC
 	  Uses information from the OF or flattened device tree to instantiate
 	  platform devices for direct mapped RTC chips like the DS1742 or DS1743.
 
+config GEN_RTC
+	bool "Use the platform RTC operations from user space"
+	select RTC_CLASS
+	select RTC_DRV_GENERIC
+	help
+	  This option provides backwards compatibility with the old gen_rtc.ko
+	  module that was traditionally used for old PowerPC machines.
+	  Platforms should migrate to enabling the RTC_DRV_GENERIC by hand
+	  replacing their get_rtc_time/set_rtc_time callbacks with
+	  a proper RTC device driver.
+
 config SIMPLE_GPIO
 	bool "Support for simple, memory-mapped GPIO controllers"
 	depends on PPC
diff --git a/arch/powerpc/platforms/ps3/time.c b/arch/powerpc/platforms/ps3/time.c
index 791c6142c4a7..11b45b58c81b 100644
--- a/arch/powerpc/platforms/ps3/time.c
+++ b/arch/powerpc/platforms/ps3/time.c
@@ -20,9 +20,9 @@
 
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
+#include <linux/rtc.h>
 
 #include <asm/firmware.h>
-#include <asm/rtc.h>
 #include <asm/lv1call.h>
 #include <asm/ps3.h>
 
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index fccac76257c9..153e90f8a445 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -325,10 +325,10 @@ config JS_RTC
 	  To compile this driver as a module, choose M here: the
 	  module will be called js-rtc.
 
-config GEN_RTC
+config OLD_GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on PPC
+	depends on BROKEN
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index d8a7579300d2..fc0905aa7373 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -25,7 +25,7 @@ obj-$(CONFIG_APPLICOM)		+= applicom.o
 obj-$(CONFIG_SONYPI)		+= sonypi.o
 obj-$(CONFIG_RTC)		+= rtc.o
 obj-$(CONFIG_HPET)		+= hpet.o
-obj-$(CONFIG_GEN_RTC)		+= genrtc.o
+obj-$(CONFIG_OLD_GEN_RTC)	+= genrtc.o
 obj-$(CONFIG_EFI_RTC)		+= efirtc.o
 obj-$(CONFIG_DS1302)		+= ds1302.o
 obj-$(CONFIG_XILINX_HWICAP)	+= xilinx_hwicap/
-- 
2.7.0

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From - Thu Nov 08 21:38:56 2018
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From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 04/16] rtc: sh: provide rtc_class_ops directly
Date: Mon, 30 May 2016 20:57:52 +0200
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Xref: news.gmane.org gmane.linux.drivers.rtc:40 gmane.linux.ports.alpha:3746 gmane.linux.kernel:2230344 gmane.linux.ports.parisc:26800 gmane.linux.ports.ppc64.devel:127848 gmane.linux.ports.sh.devel:54133 gmane.linux.kernel.cross-arch:32180
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/40>

The rtc-generic driver provides an architecture specific
wrapper on top of the generic rtc_class_ops abstraction,
and on sh, that goes through another indirection using
the rtc_sh_get_time/rtc_sh_set_time functions.

This changes the sh rtc-generic device to provide its
rtc_class_ops directly, skipping one of the abstraction
levels.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 arch/sh/include/asm/rtc.h | 11 -----------
 arch/sh/kernel/time.c     | 33 ++++++++++++++++++++-------------
 drivers/rtc/rtc-generic.c |  2 +-
 3 files changed, 21 insertions(+), 25 deletions(-)

diff --git a/arch/sh/include/asm/rtc.h b/arch/sh/include/asm/rtc.h
index 52b0c2dba979..f7b010d48af7 100644
--- a/arch/sh/include/asm/rtc.h
+++ b/arch/sh/include/asm/rtc.h
@@ -6,17 +6,6 @@ extern void (*board_time_init)(void);
 extern void (*rtc_sh_get_time)(struct timespec *);
 extern int (*rtc_sh_set_time)(const time_t);
 
-/* some dummy definitions */
-#define RTC_BATT_BAD 0x100	/* battery bad */
-#define RTC_SQWE 0x08		/* enable square-wave output */
-#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
-#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
-
-struct rtc_time;
-unsigned int get_rtc_time(struct rtc_time *);
-int set_rtc_time(struct rtc_time *);
-
 #define RTC_CAP_4_DIGIT_YEAR	(1 << 0)
 
 struct sh_rtc_platform_info {
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index d6d0a986c6e9..a4a7862b489a 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -50,27 +50,31 @@ int update_persistent_clock(struct timespec now)
 }
 #endif
 
-unsigned int get_rtc_time(struct rtc_time *tm)
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
 {
-	if (rtc_sh_get_time != null_rtc_get_time) {
-		struct timespec tv;
+	struct timespec tv;
 
-		rtc_sh_get_time(&tv);
-		rtc_time_to_tm(tv.tv_sec, tm);
-	}
-
-	return RTC_24H;
+	rtc_sh_get_time(&tv);
+	rtc_time_to_tm(tv.tv_sec, tm);
+	return 0;
 }
-EXPORT_SYMBOL(get_rtc_time);
 
-int set_rtc_time(struct rtc_time *tm)
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
 {
 	unsigned long secs;
 
 	rtc_tm_to_time(tm, &secs);
-	return rtc_sh_set_time(secs);
+	if ((rtc_sh_set_time == null_rtc_set_time) ||
+	    (rtc_sh_set_time(secs) < 0))
+		return -EOPNOTSUPP;
+
+	return 0;
 }
-EXPORT_SYMBOL(set_rtc_time);
+
+static const struct rtc_class_ops rtc_generic_ops = {
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
 
 static int __init rtc_generic_init(void)
 {
@@ -79,7 +83,10 @@ static int __init rtc_generic_init(void)
 	if (rtc_sh_get_time == null_rtc_get_time)
 		return -ENODEV;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &rtc_generic_ops,
+					     sizeof(rtc_generic_ops));
+
 
 	return PTR_ERR_OR_ZERO(pdev);
 }
diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
index d726c6aa96a8..3958e87a05fa 100644
--- a/drivers/rtc/rtc-generic.c
+++ b/drivers/rtc/rtc-generic.c
@@ -10,7 +10,7 @@
 #include <linux/rtc.h>
 
 #if defined(CONFIG_M68K) || defined(CONFIG_PARISC) || \
-    defined(CONFIG_PPC) || defined(CONFIG_SUPERH32)
+    defined(CONFIG_PPC)
 #include <asm/rtc.h>
 
 static int generic_get_time(struct device *dev, struct rtc_time *tm)
-- 
2.7.0

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From - Thu Nov 08 21:38:56 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 14/16] rtc: generic: remove get_rtc_time/set_rtc_time
 wrappers
Date: Mon, 30 May 2016 20:58:02 +0200
Lines: 71
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Xref: news.gmane.org gmane.linux.drivers.rtc:41 gmane.linux.ports.alpha:3747 gmane.linux.kernel:2230345 gmane.linux.ports.parisc:26801 gmane.linux.ports.ppc64.devel:127849 gmane.linux.ports.sh.devel:54134 gmane.linux.kernel.cross-arch:32181
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/41>

All architectures using this driver are now converted to
provide their own operations, so this one can be turned
into a trivial stub driver relying on its platform data.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 drivers/rtc/rtc-generic.c | 35 +----------------------------------
 1 file changed, 1 insertion(+), 34 deletions(-)

diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
index efcb9833cac8..1bf5d2347928 100644
--- a/drivers/rtc/rtc-generic.c
+++ b/drivers/rtc/rtc-generic.c
@@ -9,43 +9,10 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 
-#if 0
-#include <asm/rtc.h>
-
-static int generic_get_time(struct device *dev, struct rtc_time *tm)
-{
-	unsigned int ret = get_rtc_time(tm);
-
-	if (ret & RTC_BATT_BAD)
-		return -EOPNOTSUPP;
-
-	return rtc_valid_tm(tm);
-}
-
-static int generic_set_time(struct device *dev, struct rtc_time *tm)
-{
-	if (set_rtc_time(tm) < 0)
-		return -EOPNOTSUPP;
-
-	return 0;
-}
-
-static const struct rtc_class_ops generic_rtc_ops = {
-	.read_time = generic_get_time,
-	.set_time = generic_set_time,
-};
-#else
-#define generic_rtc_ops *(struct rtc_class_ops*)NULL
-#endif
-
 static int __init generic_rtc_probe(struct platform_device *dev)
 {
 	struct rtc_device *rtc;
-	const struct rtc_class_ops *ops;
-
-	ops = dev_get_platdata(&dev->dev);
-	if (!ops)
-		ops = &generic_rtc_ops;
+	const struct rtc_class_ops *ops = dev_get_platdata(&dev->dev);
 
 	rtc = devm_rtc_device_register(&dev->dev, "rtc-generic",
 					ops, THIS_MODULE);
-- 
2.7.0

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From - Thu Nov 08 21:38:56 2018
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X-Mozilla-Keys:                                                                                 
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From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 03/16] char/genrtc: x86: remove remnants of asm/rtc.h
Date: Mon, 30 May 2016 20:57:51 +0200
Lines: 171
Approved: news@gmane.org
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To: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
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Xref: news.gmane.org gmane.linux.drivers.rtc:42 gmane.linux.ports.alpha:3748 gmane.linux.kernel:2230346 gmane.linux.ports.parisc:26802 gmane.linux.ports.ppc64.devel:127850 gmane.linux.ports.sh.devel:54135 gmane.linux.kernel.cross-arch:32182
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/42>

Commit 3195ef59cb42 ("x86: Do full rtc synchronization with ntp") had
the side-effect of unconditionally enabling the RTC_LIB symbol on x86,
which in turn disables the selection of the CONFIG_RTC and
CONFIG_GEN_RTC drivers that contain a two older implementations of
the CONFIG_RTC_DRV_CMOS driver.

This removes x86 from the list for genrtc, and changes all references
to the asm/rtc.h header to instead point to the interfaces
from linux/mc146818rtc.h.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 arch/x86/include/asm/rtc.h   | 1 -
 arch/x86/kernel/hpet.c       | 3 +--
 arch/x86/kernel/rtc.c        | 3 +--
 arch/x86/platform/efi/efi.c  | 1 -
 drivers/acpi/acpi_cmos_rtc.c | 2 +-
 drivers/base/power/trace.c   | 6 +++---
 drivers/char/Kconfig         | 2 +-
 drivers/rtc/rtc-mrst.c       | 2 +-
 8 files changed, 8 insertions(+), 12 deletions(-)
 delete mode 100644 arch/x86/include/asm/rtc.h

diff --git a/arch/x86/include/asm/rtc.h b/arch/x86/include/asm/rtc.h
deleted file mode 100644
index f71c3b0ed360..000000000000
--- a/arch/x86/include/asm/rtc.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/rtc.h>
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index f112af7aa62e..357900aad62c 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -1020,7 +1020,6 @@ void hpet_disable(void)
  */
 #include <linux/mc146818rtc.h>
 #include <linux/rtc.h>
-#include <asm/rtc.h>
 
 #define DEFAULT_RTC_INT_FREQ	64
 #define DEFAULT_RTC_SHIFT	6
@@ -1244,7 +1243,7 @@ irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
 	memset(&curr_time, 0, sizeof(struct rtc_time));
 
 	if (hpet_rtc_flags & (RTC_UIE | RTC_AIE))
-		get_rtc_time(&curr_time);
+		mc146818_set_time(&curr_time);
 
 	if (hpet_rtc_flags & RTC_UIE &&
 	    curr_time.tm_sec != hpet_prev_update_sec) {
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index eceaa082ec3f..79c6311cd912 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -13,7 +13,6 @@
 #include <asm/x86_init.h>
 #include <asm/time.h>
 #include <asm/intel-mid.h>
-#include <asm/rtc.h>
 #include <asm/setup.h>
 
 #ifdef CONFIG_X86_32
@@ -47,7 +46,7 @@ int mach_set_rtc_mmss(const struct timespec *now)
 
 	rtc_time_to_tm(nowtime, &tm);
 	if (!rtc_valid_tm(&tm)) {
-		retval = set_rtc_time(&tm);
+		retval = mc146818_set_time(&tm);
 		if (retval)
 			printk(KERN_ERR "%s: RTC write failed with error %d\n",
 			       __func__, retval);
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index f93545e7dc54..56400d03409f 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -51,7 +51,6 @@
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
 #include <asm/x86_init.h>
-#include <asm/rtc.h>
 #include <asm/uv/uv.h>
 
 static struct efi efi_phys __initdata;
diff --git a/drivers/acpi/acpi_cmos_rtc.c b/drivers/acpi/acpi_cmos_rtc.c
index 81dc75033f15..0980a133916f 100644
--- a/drivers/acpi/acpi_cmos_rtc.c
+++ b/drivers/acpi/acpi_cmos_rtc.c
@@ -14,7 +14,7 @@
 #include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <asm-generic/rtc.h>
+#include <linux/mc146818rtc.h>
 
 #include "internal.h"
 
diff --git a/drivers/base/power/trace.c b/drivers/base/power/trace.c
index a6975795e7f3..efec10b49d59 100644
--- a/drivers/base/power/trace.c
+++ b/drivers/base/power/trace.c
@@ -11,7 +11,7 @@
 #include <linux/export.h>
 #include <linux/rtc.h>
 
-#include <asm/rtc.h>
+#include <linux/mc146818rtc.h>
 
 #include "power.h"
 
@@ -103,7 +103,7 @@ static int set_magic_time(unsigned int user, unsigned int file, unsigned int dev
 	n /= 24;
 	time.tm_min = (n % 20) * 3;
 	n /= 20;
-	set_rtc_time(&time);
+	mc146818_set_time(&time);
 	return n ? -1 : 0;
 }
 
@@ -112,7 +112,7 @@ static unsigned int read_magic_time(void)
 	struct rtc_time time;
 	unsigned int val;
 
-	get_rtc_time(&time);
+	mc146818_get_time(&time);
 	pr_info("RTC time: %2d:%02d:%02d, date: %02d/%02d/%02d\n",
 		time.tm_hour, time.tm_min, time.tm_sec,
 		time.tm_mon + 1, time.tm_mday, time.tm_year % 100);
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 601f64fcc890..31b5861649ee 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on ALPHA || M68K || MN10300 || PARISC || PPC || X86
+	depends on ALPHA || M68K || MN10300 || PARISC || PPC
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c
index 0094d9bdd1e6..fe840c0edfef 100644
--- a/drivers/rtc/rtc-mrst.c
+++ b/drivers/rtc/rtc-mrst.c
@@ -32,11 +32,11 @@
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
 #include <linux/kernel.h>
+#include <linux/mc146818rtc.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/sfi.h>
 
-#include <asm-generic/rtc.h>
 #include <asm/intel_scu_ipc.h>
 #include <asm/intel-mid.h>
 #include <asm/intel_mid_vrtc.h>
-- 
2.7.0

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From - Thu Nov 08 21:38:56 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 16/16] char/genrtc: remove the rest of the driver
Date: Mon, 30 May 2016 20:58:04 +0200
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Xref: news.gmane.org gmane.linux.drivers.rtc:43 gmane.linux.ports.alpha:3749 gmane.linux.kernel:2230347 gmane.linux.ports.parisc:26803 gmane.linux.ports.ppc64.devel:127851 gmane.linux.ports.sh.devel:54136 gmane.linux.kernel.cross-arch:32183
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/43>

No architecture uses the genrtc driver any more, so let's kill it off
for good. This now also includes asm-generic/rtc.h, which is otherwise
completely unused.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 drivers/char/Kconfig      |  26 ---
 drivers/char/Makefile     |   1 -
 drivers/char/genrtc.c     | 539 ----------------------------------------------
 include/asm-generic/rtc.h |  51 -----
 4 files changed, 617 deletions(-)
 delete mode 100644 drivers/char/genrtc.c
 delete mode 100644 include/asm-generic/rtc.h

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 153e90f8a445..0ec91cc6c2fb 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -325,32 +325,6 @@ config JS_RTC
 	  To compile this driver as a module, choose M here: the
 	  module will be called js-rtc.
 
-config OLD_GEN_RTC
-	tristate "Generic /dev/rtc emulation"
-	depends on RTC!=y
-	depends on BROKEN
-	---help---
-	  If you say Y here and create a character special file /dev/rtc with
-	  major number 10 and minor number 135 using mknod ("man mknod"), you
-	  will get access to the real time clock (or hardware clock) built
-	  into your computer.
-
-	  It reports status information via the file /proc/driver/rtc and its
-	  behaviour is set by various ioctls on /dev/rtc. If you enable the
-	  "extended RTC operation" below it will also provide an emulation
-	  for RTC_UIE which is required by some programs and may improve
-	  precision in some cases.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called genrtc.
-
-config GEN_RTC_X
-	bool "Extended RTC operation"
-	depends on GEN_RTC
-	help
-	  Provides an emulation for RTC_UIE which is required by some programs
-	  and may improve precision of the generic RTC support in some cases.
-
 config EFI_RTC
 	bool "EFI Real Time Clock Services"
 	depends on IA64
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index fc0905aa7373..f33f5e35df9c 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -25,7 +25,6 @@ obj-$(CONFIG_APPLICOM)		+= applicom.o
 obj-$(CONFIG_SONYPI)		+= sonypi.o
 obj-$(CONFIG_RTC)		+= rtc.o
 obj-$(CONFIG_HPET)		+= hpet.o
-obj-$(CONFIG_OLD_GEN_RTC)	+= genrtc.o
 obj-$(CONFIG_EFI_RTC)		+= efirtc.o
 obj-$(CONFIG_DS1302)		+= ds1302.o
 obj-$(CONFIG_XILINX_HWICAP)	+= xilinx_hwicap/
diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
deleted file mode 100644
index 4f943759d376..000000000000
--- a/drivers/char/genrtc.c
+++ /dev/null
@@ -1,539 +0,0 @@
-/*
- *	Real Time Clock interface for
- *		- q40 and other m68k machines,
- *		- HP PARISC machines
- *		- PowerPC machines
- *      emulate some RTC irq capabilities in software
- *
- *      Copyright (C) 1999 Richard Zidlicky
- *
- *	based on Paul Gortmaker's rtc.c device and
- *           Sam Creasey Generic rtc driver
- *
- *	This driver allows use of the real time clock (built into
- *	nearly all computers) from user space. It exports the /dev/rtc
- *	interface supporting various ioctl() and also the /proc/driver/rtc
- *	pseudo-file for status information.
- *
- *	The ioctls can be used to set the interrupt behaviour where
- *	supported.
- *
- *	The /dev/rtc interface will block on reads until an interrupt
- *	has been received. If a RTC interrupt has already happened,
- *	it will output an unsigned long and then block. The output value
- *	contains the interrupt status in the low byte and the number of
- *	interrupts since the last read in the remaining high bytes. The
- *	/dev/rtc interface can also be used with the select(2) call.
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
- *
-
- *      1.01 fix for 2.3.X                    rz-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org
- *      1.02 merged with code from genrtc.c   rz-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org
- *      1.03 make it more portable            zippel-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org
- *      1.04 removed useless timer code       rz-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org
- *      1.05 portable RTC_UIE emulation       rz-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org
- *      1.06 set_rtc_time can return an error trini-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org
- *      1.07 ported to HP PARISC (hppa)	      Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
- */
-
-#define RTC_VERSION	"1.07"
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/miscdevice.h>
-#include <linux/fcntl.h>
-
-#include <linux/rtc.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/mutex.h>
-#include <linux/workqueue.h>
-
-#include <asm/uaccess.h>
-#include <asm/rtc.h>
-
-/*
- *	We sponge a minor off of the misc major. No need slurping
- *	up another valuable major dev number for this. If you add
- *	an ioctl, make sure you don't conflict with SPARC's RTC
- *	ioctls.
- */
-
-static DEFINE_MUTEX(gen_rtc_mutex);
-static DECLARE_WAIT_QUEUE_HEAD(gen_rtc_wait);
-
-/*
- *	Bits in gen_rtc_status.
- */
-
-#define RTC_IS_OPEN		0x01	/* means /dev/rtc is in use	*/
-
-static unsigned char gen_rtc_status;	/* bitmapped status byte.	*/
-static unsigned long gen_rtc_irq_data;	/* our output to the world	*/
-
-/* months start at 0 now */
-static unsigned char days_in_mo[] =
-{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
-
-static int irq_active;
-
-#ifdef CONFIG_GEN_RTC_X
-static struct work_struct genrtc_task;
-static struct timer_list timer_task;
-
-static unsigned int oldsecs;
-static int lostint;
-static unsigned long tt_exp;
-
-static void gen_rtc_timer(unsigned long data);
-
-static volatile int stask_active;              /* schedule_work */
-static volatile int ttask_active;              /* timer_task */
-static int stop_rtc_timers;                    /* don't requeue tasks */
-static DEFINE_SPINLOCK(gen_rtc_lock);
-
-static void gen_rtc_interrupt(unsigned long arg);
-
-/*
- * Routine to poll RTC seconds field for change as often as possible,
- * after first RTC_UIE use timer to reduce polling
- */
-static void genrtc_troutine(struct work_struct *work)
-{
-	unsigned int tmp = get_rtc_ss();
-	
-	if (stop_rtc_timers) {
-		stask_active = 0;
-		return;
-	}
-
-	if (oldsecs != tmp){
-		oldsecs = tmp;
-
-		timer_task.function = gen_rtc_timer;
-		timer_task.expires = jiffies + HZ - (HZ/10);
-		tt_exp=timer_task.expires;
-		ttask_active=1;
-		stask_active=0;
-		add_timer(&timer_task);
-
-		gen_rtc_interrupt(0);
-	} else if (schedule_work(&genrtc_task) == 0)
-		stask_active = 0;
-}
-
-static void gen_rtc_timer(unsigned long data)
-{
-	lostint = get_rtc_ss() - oldsecs ;
-	if (lostint<0) 
-		lostint = 60 - lostint;
-	if (time_after(jiffies, tt_exp))
-		printk(KERN_INFO "genrtc: timer task delayed by %ld jiffies\n",
-		       jiffies-tt_exp);
-	ttask_active=0;
-	stask_active=1;
-	if ((schedule_work(&genrtc_task) == 0))
-		stask_active = 0;
-}
-
-/* 
- * call gen_rtc_interrupt function to signal an RTC_UIE,
- * arg is unused.
- * Could be invoked either from a real interrupt handler or
- * from some routine that periodically (eg 100HZ) monitors
- * whether RTC_SECS changed
- */
-static void gen_rtc_interrupt(unsigned long arg)
-{
-	/*  We store the status in the low byte and the number of
-	 *	interrupts received since the last read in the remainder
-	 *	of rtc_irq_data.  */
-
-	gen_rtc_irq_data += 0x100;
-	gen_rtc_irq_data &= ~0xff;
-	gen_rtc_irq_data |= RTC_UIE;
-
-	if (lostint){
-		printk("genrtc: system delaying clock ticks?\n");
-		/* increment count so that userspace knows something is wrong */
-		gen_rtc_irq_data += ((lostint-1)<<8);
-		lostint = 0;
-	}
-
-	wake_up_interruptible(&gen_rtc_wait);
-}
-
-/*
- *	Now all the various file operations that we export.
- */
-static ssize_t gen_rtc_read(struct file *file, char __user *buf,
-			size_t count, loff_t *ppos)
-{
-	unsigned long data;
-	ssize_t retval;
-
-	if (count != sizeof (unsigned int) && count != sizeof (unsigned long))
-		return -EINVAL;
-
-	if (file->f_flags & O_NONBLOCK && !gen_rtc_irq_data)
-		return -EAGAIN;
-
-	retval = wait_event_interruptible(gen_rtc_wait,
-			(data = xchg(&gen_rtc_irq_data, 0)));
-	if (retval)
-		goto out;
-
-	/* first test allows optimizer to nuke this case for 32-bit machines */
-	if (sizeof (int) != sizeof (long) && count == sizeof (unsigned int)) {
-		unsigned int uidata = data;
-		retval = put_user(uidata, (unsigned int __user *)buf) ?:
-			sizeof(unsigned int);
-	}
-	else {
-		retval = put_user(data, (unsigned long __user *)buf) ?:
-			sizeof(unsigned long);
-	}
-out:
-	return retval;
-}
-
-static unsigned int gen_rtc_poll(struct file *file,
-				 struct poll_table_struct *wait)
-{
-	poll_wait(file, &gen_rtc_wait, wait);
-	if (gen_rtc_irq_data != 0)
-		return POLLIN | POLLRDNORM;
-	return 0;
-}
-
-#endif
-
-/*
- * Used to disable/enable interrupts, only RTC_UIE supported
- * We also clear out any old irq data after an ioctl() that
- * meddles with the interrupt enable/disable bits.
- */
-
-static inline void gen_clear_rtc_irq_bit(unsigned char bit)
-{
-#ifdef CONFIG_GEN_RTC_X
-	stop_rtc_timers = 1;
-	if (ttask_active){
-		del_timer_sync(&timer_task);
-		ttask_active = 0;
-	}
-	while (stask_active)
-		schedule();
-
-	spin_lock(&gen_rtc_lock);
-	irq_active = 0;
-	spin_unlock(&gen_rtc_lock);
-#endif
-}
-
-static inline int gen_set_rtc_irq_bit(unsigned char bit)
-{
-#ifdef CONFIG_GEN_RTC_X
-	spin_lock(&gen_rtc_lock);
-	if ( !irq_active ) {
-		irq_active = 1;
-		stop_rtc_timers = 0;
-		lostint = 0;
-		INIT_WORK(&genrtc_task, genrtc_troutine);
-		oldsecs = get_rtc_ss();
-		init_timer(&timer_task);
-
-		stask_active = 1;
-		if (schedule_work(&genrtc_task) == 0){
-			stask_active = 0;
-		}
-	}
-	spin_unlock(&gen_rtc_lock);
-	gen_rtc_irq_data = 0;
-	return 0;
-#else
-	return -EINVAL;
-#endif
-}
-
-static int gen_rtc_ioctl(struct file *file,
-			 unsigned int cmd, unsigned long arg)
-{
-	struct rtc_time wtime;
-	struct rtc_pll_info pll;
-	void __user *argp = (void __user *)arg;
-
-	switch (cmd) {
-
-	case RTC_PLL_GET:
-	    if (get_rtc_pll(&pll))
-	 	    return -EINVAL;
-	    else
-		    return copy_to_user(argp, &pll, sizeof pll) ? -EFAULT : 0;
-
-	case RTC_PLL_SET:
-		if (!capable(CAP_SYS_TIME))
-			return -EACCES;
-		if (copy_from_user(&pll, argp, sizeof(pll)))
-			return -EFAULT;
-	    return set_rtc_pll(&pll);
-
-	case RTC_UIE_OFF:	/* disable ints from RTC updates.	*/
-		gen_clear_rtc_irq_bit(RTC_UIE);
-		return 0;
-
-	case RTC_UIE_ON:	/* enable ints for RTC updates.	*/
-	        return gen_set_rtc_irq_bit(RTC_UIE);
-
-	case RTC_RD_TIME:	/* Read the time/date from RTC	*/
-		/* this doesn't get week-day, who cares */
-		memset(&wtime, 0, sizeof(wtime));
-		get_rtc_time(&wtime);
-
-		return copy_to_user(argp, &wtime, sizeof(wtime)) ? -EFAULT : 0;
-
-	case RTC_SET_TIME:	/* Set the RTC */
-	    {
-		int year;
-		unsigned char leap_yr;
-
-		if (!capable(CAP_SYS_TIME))
-			return -EACCES;
-
-		if (copy_from_user(&wtime, argp, sizeof(wtime)))
-			return -EFAULT;
-
-		year = wtime.tm_year + 1900;
-		leap_yr = ((!(year % 4) && (year % 100)) ||
-			   !(year % 400));
-
-		if ((wtime.tm_mon < 0 || wtime.tm_mon > 11) || (wtime.tm_mday < 1))
-			return -EINVAL;
-
-		if (wtime.tm_mday < 0 || wtime.tm_mday >
-		    (days_in_mo[wtime.tm_mon] + ((wtime.tm_mon == 1) && leap_yr)))
-			return -EINVAL;
-
-		if (wtime.tm_hour < 0 || wtime.tm_hour >= 24 ||
-		    wtime.tm_min < 0 || wtime.tm_min >= 60 ||
-		    wtime.tm_sec < 0 || wtime.tm_sec >= 60)
-			return -EINVAL;
-
-		return set_rtc_time(&wtime);
-	    }
-	}
-
-	return -EINVAL;
-}
-
-static long gen_rtc_unlocked_ioctl(struct file *file, unsigned int cmd,
-				   unsigned long arg)
-{
-	int ret;
-
-	mutex_lock(&gen_rtc_mutex);
-	ret = gen_rtc_ioctl(file, cmd, arg);
-	mutex_unlock(&gen_rtc_mutex);
-
-	return ret;
-}
-
-/*
- *	We enforce only one user at a time here with the open/close.
- *	Also clear the previous interrupt data on an open, and clean
- *	up things on a close.
- */
-
-static int gen_rtc_open(struct inode *inode, struct file *file)
-{
-	mutex_lock(&gen_rtc_mutex);
-	if (gen_rtc_status & RTC_IS_OPEN) {
-		mutex_unlock(&gen_rtc_mutex);
-		return -EBUSY;
-	}
-
-	gen_rtc_status |= RTC_IS_OPEN;
-	gen_rtc_irq_data = 0;
-	irq_active = 0;
-	mutex_unlock(&gen_rtc_mutex);
-
-	return 0;
-}
-
-static int gen_rtc_release(struct inode *inode, struct file *file)
-{
-	/*
-	 * Turn off all interrupts once the device is no longer
-	 * in use and clear the data.
-	 */
-
-	gen_clear_rtc_irq_bit(RTC_PIE|RTC_AIE|RTC_UIE);
-
-	gen_rtc_status &= ~RTC_IS_OPEN;
-	return 0;
-}
-
-
-#ifdef CONFIG_PROC_FS
-
-/*
- *	Info exported via "/proc/driver/rtc".
- */
-
-static int gen_rtc_proc_show(struct seq_file *m, void *v)
-{
-	struct rtc_time tm;
-	unsigned int flags;
-	struct rtc_pll_info pll;
-
-	flags = get_rtc_time(&tm);
-
-	seq_printf(m,
-		     "rtc_time\t: %02d:%02d:%02d\n"
-		     "rtc_date\t: %04d-%02d-%02d\n"
-		     "rtc_epoch\t: %04u\n",
-		     tm.tm_hour, tm.tm_min, tm.tm_sec,
-		     tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, 1900);
-
-	tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
-
-	seq_puts(m, "alarm\t\t: ");
-	if (tm.tm_hour <= 24)
-		seq_printf(m, "%02d:", tm.tm_hour);
-	else
-		seq_puts(m, "**:");
-
-	if (tm.tm_min <= 59)
-		seq_printf(m, "%02d:", tm.tm_min);
-	else
-		seq_puts(m, "**:");
-
-	if (tm.tm_sec <= 59)
-		seq_printf(m, "%02d\n", tm.tm_sec);
-	else
-		seq_puts(m, "**\n");
-
-	seq_printf(m,
-		     "DST_enable\t: %s\n"
-		     "BCD\t\t: %s\n"
-		     "24hr\t\t: %s\n"
-		     "square_wave\t: %s\n"
-		     "alarm_IRQ\t: %s\n"
-		     "update_IRQ\t: %s\n"
-		     "periodic_IRQ\t: %s\n"
-		     "periodic_freq\t: %ld\n"
-		     "batt_status\t: %s\n",
-		     (flags & RTC_DST_EN) ? "yes" : "no",
-		     (flags & RTC_DM_BINARY) ? "no" : "yes",
-		     (flags & RTC_24H) ? "yes" : "no",
-		     (flags & RTC_SQWE) ? "yes" : "no",
-		     (flags & RTC_AIE) ? "yes" : "no",
-		     irq_active ? "yes" : "no",
-		     (flags & RTC_PIE) ? "yes" : "no",
-		     0L /* freq */,
-		     (flags & RTC_BATT_BAD) ? "bad" : "okay");
-	if (!get_rtc_pll(&pll))
-	    seq_printf(m,
-			 "PLL adjustment\t: %d\n"
-			 "PLL max +ve adjustment\t: %d\n"
-			 "PLL max -ve adjustment\t: %d\n"
-			 "PLL +ve adjustment factor\t: %d\n"
-			 "PLL -ve adjustment factor\t: %d\n"
-			 "PLL frequency\t: %ld\n",
-			 pll.pll_value,
-			 pll.pll_max,
-			 pll.pll_min,
-			 pll.pll_posmult,
-			 pll.pll_negmult,
-			 pll.pll_clock);
-	return 0;
-}
-
-static int gen_rtc_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, gen_rtc_proc_show, NULL);
-}
-
-static const struct file_operations gen_rtc_proc_fops = {
-	.open		= gen_rtc_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-static int __init gen_rtc_proc_init(void)
-{
-	struct proc_dir_entry *r;
-
-	r = proc_create("driver/rtc", 0, NULL, &gen_rtc_proc_fops);
-	if (!r)
-		return -ENOMEM;
-	return 0;
-}
-#else
-static inline int gen_rtc_proc_init(void) { return 0; }
-#endif /* CONFIG_PROC_FS */
-
-
-/*
- *	The various file operations we support.
- */
-
-static const struct file_operations gen_rtc_fops = {
-	.owner		= THIS_MODULE,
-#ifdef CONFIG_GEN_RTC_X
-	.read		= gen_rtc_read,
-	.poll		= gen_rtc_poll,
-#endif
-	.unlocked_ioctl	= gen_rtc_unlocked_ioctl,
-	.open		= gen_rtc_open,
-	.release	= gen_rtc_release,
-	.llseek		= noop_llseek,
-};
-
-static struct miscdevice rtc_gen_dev =
-{
-	.minor		= RTC_MINOR,
-	.name		= "rtc",
-	.fops		= &gen_rtc_fops,
-};
-
-static int __init rtc_generic_init(void)
-{
-	int retval;
-
-	printk(KERN_INFO "Generic RTC Driver v%s\n", RTC_VERSION);
-
-	retval = misc_register(&rtc_gen_dev);
-	if (retval < 0)
-		return retval;
-
-	retval = gen_rtc_proc_init();
-	if (retval) {
-		misc_deregister(&rtc_gen_dev);
-		return retval;
-	}
-
-	return 0;
-}
-
-static void __exit rtc_generic_exit(void)
-{
-	remove_proc_entry ("driver/rtc", NULL);
-	misc_deregister(&rtc_gen_dev);
-}
-
-
-module_init(rtc_generic_init);
-module_exit(rtc_generic_exit);
-
-MODULE_AUTHOR("Richard Zidlicky");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(RTC_MINOR);
diff --git a/include/asm-generic/rtc.h b/include/asm-generic/rtc.h
deleted file mode 100644
index 4fcff22cd707..000000000000
--- a/include/asm-generic/rtc.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/* 
- * include/asm-generic/rtc.h
- *
- * Author: Tom Rini <trini-Igf4POYTYCDQT0dZR+AlfA@public.gmane.org>
- *
- * Based on:
- * drivers/char/rtc.c
- *
- * Please read the COPYING file for all license details.
- */
-
-#ifndef __ASM_RTC_H__
-#define __ASM_RTC_H__
-
-#include <linux/rtc.h>
-
-#ifndef get_rtc_time
-#include <linux/mc146818rtc.h>
-#define get_rtc_time mc146818_get_time
-#define set_rtc_time mc146818_set_time
-#endif
-
-#define RTC_PIE 0x40		/* periodic interrupt enable */
-#define RTC_AIE 0x20		/* alarm interrupt enable */
-#define RTC_UIE 0x10		/* update-finished interrupt enable */
-
-/* some dummy definitions */
-#define RTC_BATT_BAD 0x100	/* battery bad */
-#define RTC_SQWE 0x08		/* enable square-wave output */
-#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
-#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
-
-static inline unsigned int get_rtc_ss(void)
-{
-	struct rtc_time h;
-
-	get_rtc_time(&h);
-	return h.tm_sec;
-}
-
-static inline int get_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-static inline int set_rtc_pll(struct rtc_pll_info *pll)
-{
-	return -EINVAL;
-}
-
-#endif /* __ASM_RTC_H__ */
-- 
2.7.0

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From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 10/16] rtc: m68k: provide ioctl for q40
Date: Mon, 30 May 2016 20:57:58 +0200
Lines: 67
Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.drivers.rtc:44 gmane.linux.ports.alpha:3750 gmane.linux.kernel:2230348 gmane.linux.ports.parisc:26804 gmane.linux.ports.ppc64.devel:127852 gmane.linux.ports.sh.devel:54137 gmane.linux.kernel.cross-arch:32184
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/44>

The q40 platform is the only machine in the kernel that provides
RTC_PLL_GET/RTC_PLL_SET ioctl commands in its rtc through the
mach_get_rtc_pll/mach_set_rtc_pll callbacks.

However, this currenctly works only in the old-style genrtc
driver, not the (somewhat) modern rtc-generic driver replacing
it. This adds an ioctl implementation to the m68k generic_rtc_ops
in order to let both drivers provide the same API.

After this, we should be able to remove support for genrtc
from the m68k architecture.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 arch/m68k/kernel/time.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index bd6417d38d5a..4e5aa2f4f522 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -100,7 +100,32 @@ static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
 	return 0;
 }
 
+static int rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
+{
+	struct rtc_pll_info pll;
+	struct rtc_pll_info __user *argp = (void __user *)arg;
+
+	switch (cmd) {
+	case RTC_PLL_GET:
+		if (!mach_get_rtc_pll || mach_get_rtc_pll(&pll))
+			return -EINVAL;
+		return copy_to_user(argp, &pll, sizeof pll) ? -EFAULT : 0;
+
+	case RTC_PLL_SET:
+		if (!mach_set_rtc_pll)
+			return -EINVAL;
+		if (!capable(CAP_SYS_TIME))
+			return -EACCES;
+		if (copy_from_user(&pll, argp, sizeof(pll)))
+			return -EFAULT;
+		return mach_set_rtc_pll(&pll);
+	}
+
+	return -ENOIOCTLCMD;
+}
+
 static const struct rtc_class_ops generic_rtc_ops = {
+	.ioctl = rtc_ioctl,
 	.read_time = rtc_generic_get_time,
 	.set_time = rtc_generic_set_time,
 };
-- 
2.7.0

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From - Thu Nov 08 21:38:56 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 05/16] char/genrtc: remove alpha support
Date: Mon, 30 May 2016 20:57:53 +0200
Lines: 63
Approved: news@gmane.org
Message-ID: <1464634684-1248135-6-git-send-email-arnd@arndb.de>
References: <1464634684-1248135-1-git-send-email-arnd@arndb.de>
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Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
	geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org,
	gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
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	mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org,
	dalias-8zAoT0mYgF4@public.gmane.org,
	dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
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	a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
	linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
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	rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org,
	linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
To: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
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Xref: news.gmane.org gmane.linux.drivers.rtc:45 gmane.linux.ports.alpha:3751 gmane.linux.kernel:2230349 gmane.linux.ports.parisc:26805 gmane.linux.ports.ppc64.devel:127853 gmane.linux.ports.sh.devel:54138 gmane.linux.kernel.cross-arch:32185
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/45>

The genrtc driver serves no purpose on Alpha because it drives the
same hardware as the original rtc.c driver, and the newer rtc-generic.c
or rtc-cmos.c drivers on architectures that use the asm-generic/rtc.h
header.

The defconfig uses CONFIG_RTC=y, so this driver is not used by default.
At one point it was used to abstract a quirk for the "Marvel" platform,
but it does not do this any more after the code was moved into yet
another driver in arch/alpha/kernel/rtc.c.

Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
---
 arch/alpha/include/asm/rtc.h    | 1 -
 arch/alpha/kernel/core_marvel.c | 1 -
 drivers/char/Kconfig            | 2 +-
 3 files changed, 1 insertion(+), 3 deletions(-)
 delete mode 100644 arch/alpha/include/asm/rtc.h

diff --git a/arch/alpha/include/asm/rtc.h b/arch/alpha/include/asm/rtc.h
deleted file mode 100644
index f71c3b0ed360..000000000000
--- a/arch/alpha/include/asm/rtc.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/rtc.h>
diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c
index 53dd2f1a53aa..d5f0580746a5 100644
--- a/arch/alpha/kernel/core_marvel.c
+++ b/arch/alpha/kernel/core_marvel.c
@@ -24,7 +24,6 @@
 #include <asm/gct.h>
 #include <asm/pgalloc.h>
 #include <asm/tlbflush.h>
-#include <asm/rtc.h>
 #include <asm/vga.h>
 
 #include "proto.h"
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 31b5861649ee..e3f2f3e293e5 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
 	tristate "Generic /dev/rtc emulation"
 	depends on RTC!=y
-	depends on ALPHA || M68K || MN10300 || PARISC || PPC
+	depends on M68K || MN10300 || PARISC || PPC
 	---help---
 	  If you say Y here and create a character special file /dev/rtc with
 	  major number 10 and minor number 135 using mknod ("man mknod"), you
-- 
2.7.0

-- 
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From - Thu Nov 08 21:38:56 2018
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From: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 00/16] genrtc removal
Date: Mon, 30 May 2016 22:32:07 +0200
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Approved: news@gmane.org
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To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
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Xref: news.gmane.org gmane.linux.drivers.rtc:46 gmane.linux.ports.alpha:3752 gmane.linux.kernel:2230382 gmane.linux.ports.parisc:26806 gmane.linux.ports.ppc64.devel:127854 gmane.linux.ports.sh.devel:54139 gmane.linux.kernel.cross-arch:32186
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.rtc/46>

Hi,

On 30/05/2016 at 20:57:48 +0200, Arnd Bergmann wrote :
> This is the promised resend of the removal of the genrtc driver and some
> related code, now that we are at a good time to merge this for the coming
> merge window.
> 

Thanks a lot!

I'm applying the series right now so it sits in linux-next for a while
before the next merge window.

I would still happily take any acks, Reviewed-by or Tested-by tags.


> - CONFIG_EFI_RTC is actively used on all six Itanium configurations,
>   though the CONFIG_RTC_DRV_EFI replacement driver is also available
>   there (and has been Itanium-only until ARM64 support for EFI was
>   merged). I suspect it's just a matter of getting an Ack from the
>   Itanium maintainers to remove it and change the defconfigs.
> 

I have that one on my radar. There was an impressive number of separate
drivers for EFI and CMOS...

> - the last remaining legacy RTC driver after those is CONFIG_DS1302,
>   which has a slightly nonstandard ioctl interface and is only used
>   on arch/m32r. I have experimented with this a bit and think it
>   can be converted in a backward-compatible way as well.
> 

That one has been converted to a standard SPI driver in v4.6. Following
some discussion, driving it using gpios will be added. m32r will have to
use one of those two interfaces. It is broken on that architecture for
now but we never got any reply from maintainers.


-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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From - Thu Nov 08 21:38:56 2018
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From: Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>
Newsgroups: gmane.linux.drivers.rtc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 00/16] genrtc removal
Date: Tue, 31 May 2016 08:56:05 +0200
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Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>, Greg KH <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>, 
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	David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, alpha <linux-alpha-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, 
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	"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Parisc List <linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, 
	"linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org" <linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org>, Linux-sh list <linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, 
	linux-m68k <linux-m68k-cunTk1MwBs8S/qaLPR03pWD2FQJk+8+b@public.gmane.org>, RTCLINUX <rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>, 
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To: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
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Xref: news.gmane.org gmane.linux.drivers.rtc:47 gmane.linux.ports.alpha:3753 gmane.linux.kernel:2230949 gmane.linux.ports.parisc:26807 gmane.linux.ports.ppc64.devel:127878 gmane.linux.ports.sh.devel:54140 gmane.linux.kernel.cross-arch:32195
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Allo Alexandre,

On Mon, May 30, 2016 at 10:32 PM, Alexandre Belloni
<alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> wrote:
> On 30/05/2016 at 20:57:48 +0200, Arnd Bergmann wrote :
>> This is the promised resend of the removal of the genrtc driver and some
>> related code, now that we are at a good time to merge this for the coming
>> merge window.
>>
>
> Thanks a lot!
>
> I'm applying the series right now so it sits in linux-next for a while
> before the next merge window.
>
> I would still happily take any acks, Reviewed-by or Tested-by tags.

Looks like Arnd forgot to include these when reposting:

Acked-by: Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>

For the m68k bits:
Tested-by: Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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From - Thu Nov 08 21:38:57 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: invalid printk time during boot on PA-RISC
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Hi

With the kernel 4.7-rc1, I get corrupted printk times when the machine 
boots. The kernel is compiled with "Show timing information on printks" 
(CONFIG_PRINTK_TIME) enabled. There are no other negative effects.

Bisecting shows that it is caused by the patch 
54b668009076caddbede8fde513ca2c982590bfe ("parisc: Add native 
high-resolution sched_clock() implementation").

Mikulas

[    0.000000] SLUB: HWalign=16, Order=0-3, MinObjects=0, CPUs=4, Nodes=8
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  Build-time adjustment of leaf fanout to 64.
[    0.000000] NR_IRQS:80
[    0.000000] clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[    0.000000] Console: colour dummy device 160x64
[   90.122205] Calibrating delay loop... 1991.60 BogoMIPS (lpj=3317760)
[   90.224168] pid_max: default: 32768 minimum: 301
[   90.285769] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
[   90.377394] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes)
[   90.476416] Brought up 1 CPUs
[   90.518549] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 6370867519511994 ns
[   90.648779] NET: Registered protocol family 16
[   90.708239] Searching for devices...
[   90.869035] Found devices:
[   90.904983] 1. Crestone Peak Mako+ Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x89b, 0x00004 }
[   91.019867] 2. Crestone Peak Mako+ Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x89b, 0x00004 }
[   91.134765] 3. Crestone Peak Mako+ Slow at 0xfffffffffe798000 [152] { 0, 0x0, 0x89b, 0x00004 }
[   91.249651] 4. Crestone Peak Mako+ Slow at 0xfffffffffe799000 [153] { 0, 0x0, 0x89b, 0x00004 }
[   91.364550] 5. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0b6, 0x00009 }
[   91.456208] 6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
[   91.567565] 7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
[   91.676618] 8. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
[   91.785683] 9. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
[   91.894743] 10. Quicksilver AGP Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x784, 0x0000a }
[   92.009628] 11. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
[   92.118694] 12. Crestone Peak Core RS-232 at 0xfffffff0f05e0000 [17] { 10, 0x0, 0x076, 0x000ad }
[   92.235878] 13. Crestone Peak Core RS-232 at 0xfffffff0f05e2000 [18] { 10, 0x0, 0x076, 0x000ad }
[   92.708000] Releasing cpu 1 now, hpa=fffffffffe781000
[   92.818803] FP[1] enabled: Rev 1 Model 20
[    2.917508] Releasing cpu 2 now, hpa=fffffffffe798000
[    0.196666] FP[2] enabled: Rev 1 Model 20
[    3.116794] Releasing cpu 3 now, hpa=fffffffffe799000
[    0.196666] FP[3] enabled: Rev 1 Model 20
[    3.296942] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online
[    3.447762] Setting cache flush threshold to 65536 kB
[    3.450548] Setting TLB flush threshold to 1020 kB

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From - Thu Nov 08 21:38:57 2018
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From: "George Spelvin" <linux@sciencehorizons.net>
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Subject: [DRAFT PATCH] parisc: add <asm/hash.h>
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PA-RISC is interesting; integer multiplies are implemented in
the FPU, so are painful in the kernel.  But it tries to be
friendly to shift-and-add sequences.

__hash_32 is implemented using the same shift-and-add sequence as
Microblaze, just scheduled for the PA7100.  (It's 2-way superscalar
but in-order, like the Pentium.)

hash_64 was tricky.  My tools can't find good shift-and-add sequence
for the large multiplier, but the multiplier can be factored and two
sequences for smaller multipliers cascaded.

An alternative implementation is included, but not enabled by default:
Thomas Wang's 64-to-32-bit hash.  This is more compact than the multiply,
but has the same length dependency chain.

Signed-off-by: George Spelvin <linux@sciencehorizons.net>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
Definitely an interesting architecture.  How did I do?
This should pass the self-test in test_hash.ko.

 arch/parisc/Kconfig            |   1 +
 arch/parisc/include/asm/hash.h | 164 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 165 insertions(+)
 create mode 100644 arch/parisc/include/asm/hash.h

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 88cfaa8..8ed2a44 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -30,6 +30,7 @@ config PARISC
 	select TTY # Needed for pdc_cons.c
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_ARCH_AUDITSYSCALL
+	select HAVE_ARCH_HASH
 	select HAVE_ARCH_SECCOMP_FILTER
 	select ARCH_NO_COHERENT_DMA_MMAP
 
diff --git a/arch/parisc/include/asm/hash.h b/arch/parisc/include/asm/hash.h
new file mode 100644
index 0000000..e28462c
--- /dev/null
+++ b/arch/parisc/include/asm/hash.h
@@ -0,0 +1,164 @@
+#ifndef _ASM_HASH_H
+#define _ASM_HASH_H
+
+/*
+ * HP-PA only implements integer multiply in the FPU.  However, for
+ * integer multiplies by constant, it has a number of shift-and-add
+ * (but no shift-and-subtract, sigh!) instructions that a compiler
+ * can synthesize a code sequence with.
+ *
+ * Unfortunately, GCC isn't very efficient at using them.  For example
+ * it uses three instructions for "x *= 21" when only two are needed.
+ * But we can find a sequence manually.
+ */
+
+#define HAVE_ARCH__HASH_32 1
+
+/*
+ * This is a multiply by GOLDEN_RATIO_32 = 0x61C88647 optimized for the
+ * PA7100 pairing rules.  This is an in-order 2-way superscalar processor.
+ * Only one instruction in a pair may be a shift (by more than 3 bits),
+ * but other than that, simple ALU ops (including shift-and-add by up
+ * to 3 bits) may be paired arbitrarily.
+ *
+ * PA8xxx processors are out of order and don't need such careful
+ * scheduling.
+ *
+ * This 6-step sequence was found by Yevgen Voronenko's implementation
+ * of the Hcub algorithm at http://spiral.ece.cmu.edu/mcm/gen.html.
+ */
+static inline u32 __attribute_const__ __hash_32(u32 x)
+{
+	u32 a, b, c;
+
+	/*
+	 * Phase 1: Compute  a = (x << 19) + x,
+	 * b = (x << 9) + a, c = (x << 23) + b.
+	 */
+	a = x << 19;		/* Two shifts can't be paired */
+	b = x << 9;	a += x;
+	c = x << 23;	b += a;
+			c += b;
+	/* Phase 2: Return (b<<11) + (c<<6) + (a<<3) - c */
+	b <<= 11;
+	a += c << 3;	b -= c;
+	return (a << 3) + b;
+}
+
+#if BITS_PER_LONG == 64
+
+#define HAVE_ARCH_HASH_64 1
+
+#if HAVE_ARCH_HASH_64 == 1
+/*
+ * Multiply by GOLDEN_RATIO_64.  This number factors as:
+ *   0x0x61C8864680B583EB
+ * = 7046029254386353131
+ * = 3 * 3 * 53 * 2237 * 22739 * 290394721
+ * = 9 * 2695958579 * 290394721
+ * = 2695958579 * 2613552489
+ *
+ * While the Hcub software crashes on numbers too close to 64 bits,
+ * and finds crappy solutions for numbers much more than 32 bits, it
+ * can find decent sequences for those two values.  So cascade the two.
+ *
+ * Here's an alternative sequence for step 2, based on
+ * a 6-shift 6-add sequence for 290394721 (sign-flipped so the one
+ * small shift is in an add) followed by a multiply by 9:
+ *	a = x - (x << 7);
+ *	b = (a << 16) + a - (x << 20);
+ *	c = (x << 3) + b;
+ *	x = (a << 10) - (c << 5) + b;
+ *	x *= 9;
+ * ... however, it's not clear which is better.
+ *
+ * The asm("" : "=r" () : "0" (...)) statements are simply assignment
+ * statments, but they stop GCC from doing stupid things.
+ * Any time GCC sees two consecutive shifts, it insists on trying to
+ * merge them, even at the expense of another temporary and going out
+ * of short shift range.
+ * Likewise, it tries to combine adds and subtracts without considering
+ * that PA has shift-and-add but not shift-and-subtract.  So "x = -x;
+ * a = (a << 1) + x" is the same two instructions as "a <<= 1; a -= x",
+ * but the latter is a 2-cycle dependency chain on a, while the former
+ * is only one.
+ */
+static __always_inline u32 __attribute_const__
+hash_64(u64 x, unsigned int bits)
+{
+	u64 a, b, c;
+
+	/* Step 1: Multiply by 2695958579 */
+	/* 6 shifts + 6 adds, one is small enough for shladd */
+	/* 6 cycle dependency chain */
+	a = (x << 20) + x;
+	b = x << 29;
+	a += (x << 4);
+	x <<= 11;
+	b = a - b;
+	a += x;
+	b *= 3;
+	x = (a << 12) + b;
+
+	/* Step 2: Multiply by 2613552489 */
+	/* 7 shift + 7 adds, three are small enough for shladd */
+	/* 6 cycle dependency chain (via a) */
+	a = (x << 19) + x;
+	asm("" : "=r" (c) : "0" (x << 9));
+	asm("" : "=r" (b) : "0" (a + (c << 3)));
+	asm("" : "=r" (x) : "0" (-x));
+	asm("" : "=r" (a) : "0" (a << 7));
+	b = a - b;
+	a = (a << 1) + x;
+	c -= b;
+	a = (a << 1) + b;
+	x = (a << 3) + c;
+
+	return x >> (64 - bits);
+}
+#else /* HAVE_ARCH_HASH_64 != 1 */
+/*
+ * If we don't care about matching the generic function, here's an
+ * alternative hash function; Thomas Wang's 64-to-32 bit hash function.
+ * https://web.archive.org/web/2011/http://www.concentric.net/~Ttwang/tech/inthash.htm
+ * http://burtleburtle.net/bob/hash/integer.html
+ *
+ * This algorithm concentrates the entropy in the low bits of the output,
+ * so they are returned.
+ *
+ * The code is smaller than the multiply, but each instruction (there
+ * are usually 2 per line) is sequentially dependent, so it's also a
+ * 12-cycle dependency chain.
+ */
+static __always_inline u32 __attribute_const__
+hash_64(u64 x, unsigned int bits)
+{
+	u64 y;
+
+	if (!__builtin_constant_p(bits))
+		asm("mtsarcm %1" : "=q" (bits) : "r" (bits));
+
+	x = ~x + (x << 18);
+	x ^= x >> 31;
+	y = x * 5;	/* GCC uses 3 instructions for "x *= 21" */
+	x += y << 2;
+	x ^= x >> 11;
+	x += x << 6;
+	x ^= x >> 22;
+
+	if (__builtin_constant_p(bits)) {
+		x = x >> (64 - bits) << (64 - bits);
+	} else {
+		asm("depdi,z 0x1F,%%sar,63,%0" : "=r" (y) : "q" (bits));
+		x &= ~y;
+	}
+
+	return x;
+}
+
+#endif /* HAVE_ARCH_HASH_64 */
+#endif /* BITS_PER_LONG == 64 */
+
+#endif /* _ASM_HASH_H */
+
+
-- 
2.8.1

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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: The patch "mm, page_alloc: avoid looking up the first zone in a
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Hi

The patch c33d6c06f60f710f0305ae792773e1c2560e1e51 ("mm, page_alloc: avoid 
looking up the first zone in a zonelist twice") breaks memory management 
on PA-RISC.

The PA-RISC system is not NUMA, but the chipset maps physical memory to 
three distinct ranges, so the kernel sets up three nodes. My machine has 
7GiB RAM and the memory is mapped to these ranges:

 Memory Ranges:
  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
  1) Start 0x0000000100000000 End 0x00000001bfdfffff Size   3070 MB
  2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
 Total Memory: 7166 MB
 On node 0 totalpages: 262144
 free_area_init_node: node 0, pgdat 405e44d0, node_mem_map 415ed000
   Normal zone: 3584 pages used for memmap
   Normal zone: 0 pages reserved
   Normal zone: 262144 pages, LIFO batch:31
 On node 1 totalpages: 785920
 free_area_init_node: node 1, pgdat 405e5140, node_mem_map 140000000
   Normal zone: 10745 pages used for memmap
   Normal zone: 0 pages reserved
   Normal zone: 785920 pages, LIFO batch:31
 On node 2 totalpages: 786432
 free_area_init_node: node 2, pgdat 405e5db0, node_mem_map 4080000000
   Normal zone: 10752 pages used for memmap
   Normal zone: 0 pages reserved
   Normal zone: 786432 pages, LIFO batch:31

Prior to the patch c33d6c06f60f710f0305ae792773e1c2560e1e51, the kernel 
could use all 7GiB of RAM as file cache. After this patch, the kernel 
fills the first 1GiB zone with cache and then starts reclaiming the cache 
(or sometimes even swapping) instead of using the remaining two zones as a 
file cache.

The bug can be reproduced by reading 2GiB file and noticing that the 
amount of cached memory stays near 1GiB.

Mikulas

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Cc: Jesper Dangaard Brouer <brouer@redhat.com>,
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On 05/31/2016 11:20 PM, Mikulas Patocka wrote:
> Hi
> 
> The patch c33d6c06f60f710f0305ae792773e1c2560e1e51 ("mm, page_alloc: avoid 
> looking up the first zone in a zonelist twice") breaks memory management 
> on PA-RISC.

Hi,

I think the linked patch should help. Please try and report.

http://marc.info/?i=20160531100848.GR2527%40techsingularity.net

Thanks,
Vlastimil


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On Tue, 31 May 2016, Vlastimil Babka wrote:

> On 05/31/2016 11:20 PM, Mikulas Patocka wrote:
> > Hi
> > 
> > The patch c33d6c06f60f710f0305ae792773e1c2560e1e51 ("mm, page_alloc: avoid 
> > looking up the first zone in a zonelist twice") breaks memory management 
> > on PA-RISC.
> 
> Hi,
> 
> I think the linked patch should help. Please try and report.
> 
> http://marc.info/?i=20160531100848.GR2527%40techsingularity.net
> 
> Thanks,
> Vlastimil

Thanks, that patch fixes it.

Mikulas
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* Mikulas Patocka <mpatocka@redhat.com>:
> Hi
> 
> With the kernel 4.7-rc1, I get corrupted printk times when the machine 
> boots. The kernel is compiled with "Show timing information on printks" 
> (CONFIG_PRINTK_TIME) enabled. There are no other negative effects.
> 
> Bisecting shows that it is caused by the patch 
> 54b668009076caddbede8fde513ca2c982590bfe ("parisc: Add native 
> high-resolution sched_clock() implementation").
> 
> [    0.000000] NR_IRQS:80
> [    0.000000] clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
> [    0.000000] Console: colour dummy device 160x64
> [   90.122205] Calibrating delay loop... 1991.60 BogoMIPS (lpj=3317760)
> [   90.224168] pid_max: default: 32768 minimum: 301
> ....
> [   92.235878] 13. Crestone Peak Core RS-232 at 0xfffffff0f05e2000 [18] { 10, 0x0, 0x076, 0x000ad }
> [   92.708000] Releasing cpu 1 now, hpa=fffffffffe781000
> [   92.818803] FP[1] enabled: Rev 1 Model 20
> [    2.917508] Releasing cpu 2 now, hpa=fffffffffe798000
> [    0.196666] FP[2] enabled: Rev 1 Model 20
> [    3.116794] Releasing cpu 3 now, hpa=fffffffffe799000
> [    0.196666] FP[3] enabled: Rev 1 Model 20
> [    3.296942] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online
> [    3.447762] Setting cache flush threshold to 65536 kB
> [    3.450548] Setting TLB flush threshold to 1020 kB

Please try attached patch.

It fixes the problem mostly for me, there is just one little glitch
left, which is that the lines "FP[x] enabled" will still print an
invalid time. I assume it's because when this text is printed, the
clock/interrupts for the just booted CPU aren't enabled yet.

I'm not sure it's worth trying to fix that. 
One could print out that info at a later time, or just disabled it.

Helge

[    5.720014] Enabling PDC_PAT chassis codes support v0.05
[    6.644542] Releasing cpu 1 now, hpa=fffffffffe781000
[    0.196000] FP[1] enabled: Rev 1 Model 20
[    7.088432] CPU(s): 2 out of 2 PA8800 (Mako) at 900.000000 MHz online

-----------

[PATCH] parisc: Fix printk time during boot

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 58dd680..31ec99a 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -309,11 +309,6 @@ void __init time_init(void)
 	clocks_calc_mult_shift(&cyc2ns_mul, &cyc2ns_shift, current_cr16_khz,
 				NSEC_PER_MSEC, 0);
 
-#if defined(CONFIG_HAVE_UNSTABLE_SCHED_CLOCK) && defined(CONFIG_64BIT)
-	/* At bootup only one 64bit CPU is online and cr16 is "stable" */
-	set_sched_clock_stable();
-#endif

From - Thu Nov 08 21:38:57 2018
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
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Subject: Re: invalid printk time during boot on PA-RISC
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Hi,

On Wed, Jun 01, 2016 at 11:12:48PM +0200, Helge Deller wrote:
> It fixes the problem mostly for me, there is just one little glitch
> left, which is that the lines "FP[x] enabled" will still print an
> invalid time. I assume it's because when this text is printed, the
> clock/interrupts for the just booted CPU aren't enabled yet.
> 
> I'm not sure it's worth trying to fix that. 
> One could print out that info at a later time, or just disabled it.
> 
> Helge
> 
> [    5.720014] Enabling PDC_PAT chassis codes support v0.05
> [    6.644542] Releasing cpu 1 now, hpa=fffffffffe781000
> [    0.196000] FP[1] enabled: Rev 1 Model 20
> [    7.088432] CPU(s): 2 out of 2 PA8800 (Mako) at 900.000000 MHz online

Some tools that analyze boot time based on dmesg might get confused.

A.
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To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
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Xref: news.gmane.org gmane.linux.drivers.rtc:64 gmane.linux.ports.alpha:3754 gmane.linux.kernel:2232749 gmane.linux.ports.parisc:26815 gmane.linux.ports.ppc64.devel:127927 gmane.linux.ports.sh.devel:54144 gmane.linux.kernel.cross-arch:32262
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On Mon, May 30, 2016 at 08:57:52PM +0200, Arnd Bergmann wrote:
> The rtc-generic driver provides an architecture specific
> wrapper on top of the generic rtc_class_ops abstraction,
> and on sh, that goes through another indirection using
> the rtc_sh_get_time/rtc_sh_set_time functions.
> 
> This changes the sh rtc-generic device to provide its
> rtc_class_ops directly, skipping one of the abstraction
> levels.
> 
> Signed-off-by: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>

I haven't tested any of this, but based on our discussion of the
previous version, I'm satisfied that it makes sense.

Acked-by: Rich Felker <dalias-8zAoT0mYgF4@public.gmane.org>

> ---
>  arch/sh/include/asm/rtc.h | 11 -----------
>  arch/sh/kernel/time.c     | 33 ++++++++++++++++++++-------------
>  drivers/rtc/rtc-generic.c |  2 +-
>  3 files changed, 21 insertions(+), 25 deletions(-)
> 
> diff --git a/arch/sh/include/asm/rtc.h b/arch/sh/include/asm/rtc.h
> index 52b0c2dba979..f7b010d48af7 100644
> --- a/arch/sh/include/asm/rtc.h
> +++ b/arch/sh/include/asm/rtc.h
> @@ -6,17 +6,6 @@ extern void (*board_time_init)(void);
>  extern void (*rtc_sh_get_time)(struct timespec *);
>  extern int (*rtc_sh_set_time)(const time_t);
>  
> -/* some dummy definitions */
> -#define RTC_BATT_BAD 0x100	/* battery bad */
> -#define RTC_SQWE 0x08		/* enable square-wave output */
> -#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
> -#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
> -#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
> -
> -struct rtc_time;
> -unsigned int get_rtc_time(struct rtc_time *);
> -int set_rtc_time(struct rtc_time *);
> -
>  #define RTC_CAP_4_DIGIT_YEAR	(1 << 0)
>  
>  struct sh_rtc_platform_info {
> diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
> index d6d0a986c6e9..a4a7862b489a 100644
> --- a/arch/sh/kernel/time.c
> +++ b/arch/sh/kernel/time.c
> @@ -50,27 +50,31 @@ int update_persistent_clock(struct timespec now)
>  }
>  #endif
>  
> -unsigned int get_rtc_time(struct rtc_time *tm)
> +static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
>  {
> -	if (rtc_sh_get_time != null_rtc_get_time) {
> -		struct timespec tv;
> +	struct timespec tv;
>  
> -		rtc_sh_get_time(&tv);
> -		rtc_time_to_tm(tv.tv_sec, tm);
> -	}
> -
> -	return RTC_24H;
> +	rtc_sh_get_time(&tv);
> +	rtc_time_to_tm(tv.tv_sec, tm);
> +	return 0;
>  }
> -EXPORT_SYMBOL(get_rtc_time);
>  
> -int set_rtc_time(struct rtc_time *tm)
> +static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
>  {
>  	unsigned long secs;
>  
>  	rtc_tm_to_time(tm, &secs);
> -	return rtc_sh_set_time(secs);
> +	if ((rtc_sh_set_time == null_rtc_set_time) ||
> +	    (rtc_sh_set_time(secs) < 0))
> +		return -EOPNOTSUPP;
> +
> +	return 0;
>  }
> -EXPORT_SYMBOL(set_rtc_time);
> +
> +static const struct rtc_class_ops rtc_generic_ops = {
> +	.read_time = rtc_generic_get_time,
> +	.set_time = rtc_generic_set_time,
> +};
>  
>  static int __init rtc_generic_init(void)
>  {
> @@ -79,7 +83,10 @@ static int __init rtc_generic_init(void)
>  	if (rtc_sh_get_time == null_rtc_get_time)
>  		return -ENODEV;
>  
> -	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
> +	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
> +					     &rtc_generic_ops,
> +					     sizeof(rtc_generic_ops));
> +
>  
>  	return PTR_ERR_OR_ZERO(pdev);
>  }
> diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
> index d726c6aa96a8..3958e87a05fa 100644
> --- a/drivers/rtc/rtc-generic.c
> +++ b/drivers/rtc/rtc-generic.c
> @@ -10,7 +10,7 @@
>  #include <linux/rtc.h>
>  
>  #if defined(CONFIG_M68K) || defined(CONFIG_PARISC) || \
> -    defined(CONFIG_PPC) || defined(CONFIG_SUPERH32)
> +    defined(CONFIG_PPC)
>  #include <asm/rtc.h>
>  
>  static int generic_get_time(struct device *dev, struct rtc_time *tm)
> -- 
> 2.7.0
> 
> --
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From - Thu Nov 08 21:38:57 2018
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From: "George Spelvin" <linux@sciencehorizons.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH v2, still needs work] parisc: add <asm/hash.h>
Date: 2 Jun 2016 17:37:34 -0400
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>From 76c1fedcb594fc4a75e2d836ab40e9e8ec455755 Mon Sep 17 00:00:00 2001
From: George Spelvin <linux@horizon.com>
Date: Thu, 2 Jun 2016 17:31:42 -0400
Subject: [PATCH] parisc: add <asm/hash.h>

PA-RISC is interesting; integer multiplies are implemented in the
FPU, so are painful in the kernel.  But it tries to be friendly to
shift-and-add sequences.

__hash_32 is implemented using the same shift-and-add sequence as
Microblaze, just scheduled for the PA7100.  (It's 2-way superscalar
but in-order, like the Pentium.)

hash_64 was tricky, but a suggestion from Jason Thong allowed a good
solution by breaking up the multiplier.  Unfortunately, I scheduled it
based on a serious misunderstanding of the PA8000's pipeline.  It's 4-way
superscalar, but two of those slots are reserved for load/store instructions.
Contrary to what I thought while writing the code, it can only issue 2 ALU
operations per cycle, so the 20 instructions here take 11 cycles.
(The final add can't be paired.)

An alternative implementation is included, but not enabled by default:
Thomas Wang's 64-to-32-bit hash.  This is more compact than the multiply,
but has a slightly longer dependency chain.

Signed-off-by: George Spelvin <linux@sciencehorizons.net>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
I got allexcited when I managed to schedule the multiply in 8 cycles..
then realized I misunderstood the "4-way superscalar" nature of the
PA8000.  Still, it's better than the previous one, so I'm sending it
out for comment anyway.

 arch/parisc/Kconfig            |   1 +
 arch/parisc/include/asm/hash.h | 190 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 191 insertions(+)
 create mode 100644 arch/parisc/include/asm/hash.h

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 88cfaa8..8ed2a44 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -30,6 +30,7 @@ config PARISC
 	select TTY # Needed for pdc_cons.c
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_ARCH_AUDITSYSCALL
+	select HAVE_ARCH_HASH
 	select HAVE_ARCH_SECCOMP_FILTER
 	select ARCH_NO_COHERENT_DMA_MMAP
 
diff --git a/arch/parisc/include/asm/hash.h b/arch/parisc/include/asm/hash.h
new file mode 100644
index 0000000..13f8073
--- /dev/null
+++ b/arch/parisc/include/asm/hash.h
@@ -0,0 +1,190 @@
+#ifndef _ASM_HASH_H
+#define _ASM_HASH_H
+
+/*
+ * HP-PA only implements integer multiply in the FPU.  However, for
+ * integer multiplies by constant, it has a number of shift-and-add
+ * (but no shift-and-subtract, sigh!) instructions that a compiler
+ * can synthesize a code sequence with.
+ *
+ * Unfortunately, GCC isn't very efficient at using them.  For example
+ * it uses three instructions for "x *= 21" when only two are needed.
+ * But we can find a sequence manually.
+ */
+
+#define HAVE_ARCH__HASH_32 1
+
+/*
+ * This is a multiply by GOLDEN_RATIO_32 = 0x61C88647 optimized for the
+ * PA7100 pairing rules.  This is an in-order 2-way superscalar processor.
+ * Only one instruction in a pair may be a shift (by more than 3 bits),
+ * but other than that, simple ALU ops (including shift-and-add by up
+ * to 3 bits) may be paired arbitrarily.
+ *
+ * PA8xxx processors are out of order and don't need such careful
+ * scheduling.
+ *
+ * This 6-step sequence was found by Yevgen Voronenko's implementation
+ * of the Hcub algorithm at http://spiral.ece.cmu.edu/mcm/gen.html.
+ */
+static inline u32 __attribute_const__ __hash_32(u32 x)
+{
+	u32 a, b, c;
+
+	/*
+	 * Phase 1: Compute  a = (x << 19) + x,
+	 * b = (x << 9) + a, c = (x << 23) + b.
+	 */
+	a = x << 19;		/* Two shifts can't be paired */
+	b = x << 9;	a += x;
+	c = x << 23;	b += a;
+			c += b;
+	/* Phase 2: Return (b<<11) + (c<<6) + (a<<3) - c */
+	b <<= 11;
+	a += c << 3;	b -= c;
+	return (a << 3) + b;
+}
+
+#if BITS_PER_LONG == 64
+
+#define HAVE_ARCH_HASH_64 1
+
+#if HAVE_ARCH_HASH_64 == 1
+/*
+ * Multiply by GOLDEN_RATIO_64.  Finding a good shift-and-add chain for
+ * this is tricky, because available software for the purpose chokes on
+ * constants this large.  (It's mostly used for compiling FIR filter
+ * coefficients into FPGAs.)
+ *
+ * However, Jason Thong pointed out a work-around.  The Hcub software
+ * (http://spiral.ece.cmu.edu/mcm/gen.html) is designed for *multiple*
+ * constant multiplication, and is good at finding shift-and-add chains
+ * which share common terms.
+ *
+ * Looking at 0x0x61C8864680B583EB in binary:
+ * 0110000111001000100001100100011010000000101101011000001111101011
+ *  \______________/    \__________/       \_______/     \________/
+ *   \____________________________/         \____________________/
+ * you can see the non-zero bits are divided into several well-separated
+ * blocks.  Hcub can find algorithms for those terms separately, which
+ * can then be shifted and added together.
+ *
+ * Various combinations all work, but using just two large blocks,
+ * 0xC3910C8D << 31 in the high bits, and 0xB583EB in the low bits,
+ * produces as good an algorithm as any, and with one more small shift
+ * than alternatives.
+ *
+ * The high bits are a larger number and more work to compute, as well
+ * as needing one extra cycle to shift left 31 bits before the final
+ * addition, so they are the critical path for scheduling.  The low bits
+ * can fit into the scheduling slots left over.
+ *
+ * This is scheduled for the PA-8xxx series, which can issue up to
+ * 2 ALU operations (including shladd) + 2 shifts per cycle.
+ *
+ * Basically, the first three cycles compute common terms used for both
+ * constants, and the computation splits starting with cycle 4.
+ *
+ * Scheduling is limited by data dependency, except for cycle 6, where the
+ * first instruction ("b += a") is delayed due to a lack of ALU resources
+ * in cycle 5.  Fortunately, that (and the following shift) isn't on the
+ * critical path and the delay is inconsequential.
+ *
+ * In several places, the construction asm("" : (+r) (dest) : "0" (src));
+ * is used.  This basically performs "dest = src", but prevents gcc from
+ * inferring anything about the value assigned to "dest".  This blocks it
+ * from some mistaken optimizations like rearranging "y += z; x -= y;"
+ * into "x -= z; x -= y;", or "x <<= 23; y += x; z += x << 1;" into
+ * "y += x << 23; z += x << 24;".
+ *
+ * Because the actual assembly generated is empty, this construct is
+ * usefully portable across all GCC platforms, and so can be test-compiled
+ * on non-PA systems.
+ *
+ * In two places, a second unused input dependency is added.  This forces
+ * GCC's scheduling so it does not rearrange instructions too much.
+ */
+static __always_inline u32 __attribute_const__
+hash_64(u64 a, unsigned int bits)
+{
+	u64 b, c, d, e;
+		/* Cycle 1 */
+	asm("" : "=r" (d) : "0" (a * 5));
+	b = a << 13;
+	c = a << 17;
+		/* Cycle 2 */
+	b += c;
+	d = (d << 2) + a;       /* = a * 21 */
+		/* Cycle 3 */
+	a = (a << 1) + d;       /* = a * 23 */
+	c = d << 7;
+	b += d;
+		/* Cycle 4 */
+	asm("" : "=r" (c) : "0" (c+d));		/* c += d */
+	d = (d << 1) + b;
+	asm("" : "=r" (e) : "0" (a << 23));     /* e = a << 23 */
+	asm("" : "=r" (a) : "0" (a << 10));	/* a <<= 10 */
+		/* Cycle 5 */
+	d += e << 1;
+	c += e;
+		/* Cycle 6 */
+	asm("" : "=r" (b) : "0" (b + a),	/* b += a */
+		 "r" (d));			/* Force scheduling */
+	a <<= 9;
+	c += d << 3;
+		/* Cycle 7 */
+	a -= b;
+	bits = 64 - bits;
+	c <<= 31;
+		/* Cycle 8 */
+	asm("" : "=r" (a) : "0" (a + c), "X" (bits));
+		/* Cycle 9 */
+	return a >> bits;
+}
+
+#else /* HAVE_ARCH_HASH_64 != 1 */
+/*
+ * If we don't care about matching the generic function, here's an
+ * alternative hash function; Thomas Wang's 64-to-32 bit hash function.
+ * https://web.archive.org/web/2011/http://www.concentric.net/~Ttwang/tech/inthash.htm
+ * http://burtleburtle.net/bob/hash/integer.html
+ *
+ * This algorithm concentrates the entropy in the low bits of the output,
+ * so they are returned.
+ *
+ * Compared to the multiply, this uses 2 registers (rather than 5), and
+ * 12 instructions (rather than 20), but each instruction in sequentially
+ * dependent, so it's 12 cycles (rather than 8).
+ *
+ * (In both cases, I'm not counting the final extract of the desired bits.)
+ */
+static __always_inline u32 __attribute_const__
+hash_64(u64 x, unsigned int bits)
+{
+	u64 y;
+
+	if (!__builtin_constant_p(bits))
+		asm("mtsarcm %1" : "=q" (bits) : "r" (bits));
+
+	x = ~x + (x << 18);
+	x ^= x >> 31;
+	y = x * 5;	/* GCC uses 3 instructions for "x *= 21" */
+	x += y << 2;
+	x ^= x >> 11;
+	x += x << 6;
+	x ^= x >> 22;
+
+	if (__builtin_constant_p(bits)) {
+		x = x >> (64 - bits) << (64 - bits);
+	} else {
+		asm("depdi,z -1,%%sar,64,%0" : "=r" (y) : "q" (bits));
+		x &= ~y;
+	}
+
+	return x;
+}
+
+#endif /* HAVE_ARCH_HASH_64 */
+#endif /* BITS_PER_LONG == 64 */
+
+#endif /* _ASM_HASH_H */
-- 
2.8.1

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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.comp.video.dri.devel,gmane.linux.kernel.samsung-soc,gmane.linux.ports.sh.devel,gmane.linux.ports.arm.omap,gmane.linux.kernel,gmane.comp.freedesktop.xorg.drivers.freedreno,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.freedesktop.xorg.nouveau,gmane.linux.ports.hexagon,gmane.linux.ports.arm.rockchip,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.msm,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.kernel.pci,gmane.linux.drivers.rdma,gmane.linux.kernel.arc,gmane.linux.ports.x86-64.general,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.arm.mediatek,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC v3 02/45] dma-mapping: Use unsigned long for dma_attrs
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/13918>

Hi Krzysztof,

On Thu, Jun 2, 2016 at 5:39 PM, Krzysztof Kozlowski
<k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> wrote:
> --- a/include/linux/dma-mapping.h
> +++ b/include/linux/dma-mapping.h
> @@ -5,13 +5,25 @@

> +/**
> + * List of possible attributes associated with a DMA mapping. The semantics
> + * of each attribute should be defined in Documentation/DMA-attributes.txt.
> + */
> +#define DMA_ATTR_WRITE_BARRIER         (1UL << 1)

Any particular reason they start at 2, not 1?

> +#define DMA_ATTR_WEAK_ORDERING         (1UL << 2)
> +#define DMA_ATTR_WRITE_COMBINE         (1UL << 3)
> +#define DMA_ATTR_NON_CONSISTENT                (1UL << 4)
> +#define DMA_ATTR_NO_KERNEL_MAPPING     (1UL << 5)
> +#define DMA_ATTR_SKIP_CPU_SYNC         (1UL << 6)
> +#define DMA_ATTR_FORCE_CONTIGUOUS      (1UL << 7)
> +#define DMA_ATTR_ALLOC_SINGLE_PAGES    (1UL << 8)

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org

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when I'm talking to journalists I just say "programmer" or something like that.
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.comp.video.dri.devel,gmane.linux.kernel.samsung-soc,gmane.linux.ports.sh.devel,gmane.linux.ports.arm.omap,gmane.linux.kernel,gmane.comp.freedesktop.xorg.drivers.freedreno,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.freedesktop.xorg.nouveau,gmane.linux.ports.hexagon,gmane.linux.ports.arm.rockchip,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.msm,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.kernel.pci,gmane.linux.drivers.rdma,gmane.linux.kernel.arc,gmane.linux.ports.x86-64.general,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.arm.mediatek,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC v3 29/45] m68k: dma-mapping: Use unsigned long for dma_attrs
Date: Fri, 3 Jun 2016 09:18:44 +0200
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	Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>,
	xen-devel-GuqFBffKawtpuQazS67q72D2FQJk+8+b@public.gmane.org, Matt Turner <mattst88-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	uclinux-h8-devel-5NWGOfrQmneRv+LV9MX5uooqe+aC9MnS@public.gmane.org,
	James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>,
	"adi-buildroot-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org"
	<adi-buildroot-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
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On Thu, Jun 2, 2016 at 5:39 PM, Krzysztof Kozlowski
<k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> wrote:
> Split out subsystem specific changes for easier reviews. This will be
> squashed with main commit.
>
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>

Looks good.

Acked-by: Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.comp.video.dri.devel,gmane.linux.kernel.samsung-soc,gmane.linux.ports.sh.devel,gmane.linux.ports.arm.omap,gmane.linux.kernel,gmane.comp.freedesktop.xorg.drivers.freedreno,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.freedesktop.xorg.nouveau,gmane.linux.ports.hexagon,gmane.linux.ports.arm.rockchip,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.msm,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.kernel.pci,gmane.linux.drivers.rdma,gmane.linux.kernel.arc,gmane.linux.ports.x86-64.general,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.arm.mediatek,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC v3 02/45] dma-mapping: Use unsigned long for dma_attrs
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On 06/03/2016 09:17 AM, Geert Uytterhoeven wrote:
> Hi Krzysztof,
> 
> On Thu, Jun 2, 2016 at 5:39 PM, Krzysztof Kozlowski
> <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> wrote:
>> --- a/include/linux/dma-mapping.h
>> +++ b/include/linux/dma-mapping.h
>> @@ -5,13 +5,25 @@
> 
>> +/**
>> + * List of possible attributes associated with a DMA mapping. The semantics
>> + * of each attribute should be defined in Documentation/DMA-attributes.txt.
>> + */
>> +#define DMA_ATTR_WRITE_BARRIER         (1UL << 1)
> 
> Any particular reason they start at 2, not 1?

No reason. I'll fix this in next version (and trim Cc-list). Anyway the
values of constants won't match old ones but that should not be problem
(unless they are hard-coded somewhere).

Best regards,
Krzysztof



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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.x86-64.general,gmane.linux.kernel.pci,gmane.comp.video.dri.devel,gmane.linux.kernel.samsung-soc,gmane.linux.ports.arm.mediatek,gmane.linux.ports.arm.msm,gmane.comp.freedesktop.xorg.drivers.freedreno,gmane.comp.freedesktop.xorg.nouveau,gmane.linux.ports.arm.rockchip,gmane.linux.drivers.rdma,gmane.linux.kernel.iommu,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.omap
Subject: Re: [RFC v3 10/45] cris: dma-mapping: Use unsigned long for dma_attrs
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Cc: Richard Henderson <rth@twiddle.net>,
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        Hans-Christian Egtvedt <egtvedt@samfundet.no>,
        Steven Miao <realmz6@gmail.com>,
        Mark Salter <msalter@redhat.com>,
        Aurelien Jacquiot <a-jacquiot@ti.com>,
        Mikael Starvik <starvik@axis.com>,
        Jesper Nilsson <jespern@axis.com>,
        Yoshinori Sato <ysato@users.sourceforge.jp>,
        Richard Kuo <rkuo@codeaurora.org>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Konrad Rzeszutek
To: Krzysztof Kozlowski <k.kozlowski@samsung.com>
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On Thu, Jun 02, 2016 at 05:39:12PM +0200, Krzysztof Kozlowski wrote:
> Split out subsystem specific changes for easier reviews. This will be
> squashed with main commit.

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com



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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] soreuseport: add compat case for setsockopt
 SO_ATTACH_REUSEPORT_CBPF
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Commit 538950a ("soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF")
missed to add the compat case for the SO_ATTACH_REUSEPORT_CBPF
setsockoption() option.

Since both SO_ATTACH_FILTER and SO_ATTACH_REUSEPORT_CBPF use a struct
sock_fprog let's combine the handling of both.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/net/compat.c b/net/compat.c
index 5cfd26a..7e2aac9 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -309,7 +309,7 @@ void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
 	__scm_destroy(scm);
 }
 
-static int do_set_attach_filter(struct socket *sock, int level, int optname,
+static int do_sockopt_fix_sock_fprog(struct socket *sock, int level, int optname,
 				char __user *optval, unsigned int optlen)
 {
 	struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval;
@@ -354,8 +354,9 @@ static int do_set_sock_timeout(struct socket *sock, int level,
 static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
 				char __user *optval, unsigned int optlen)
 {
-	if (optname == SO_ATTACH_FILTER)
-		return do_set_attach_filter(sock, level, optname,
+	if (optname == SO_ATTACH_FILTER ||
+	    optname == SO_ATTACH_REUSEPORT_CBPF)
+		return do_sockopt_fix_sock_fprog(sock, level, optname,
 					    optval, optlen);
 	if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
 		return do_set_sock_timeout(sock, level, optname, optval, optlen);
--
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Subject: [PATCH] soreuseport: Fix reuseport_bpf testcase on 32bit
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This fixes the following compiler warnings when compiling the
reuseport_bpf testcase on a 32 bit platform:

reuseport_bpf.c: In function =E2=80=98attach_ebpf=E2=80=99:
reuseport_bpf.c:114:15: warning: cast from pointer to integer of iffere=
nt size [-Wpointer-to-int-cast]

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/tools/testing/selftests/net/reuseport_bpf.c b/tools/testin=
g/selftests/net/reuseport_bpf.c
index 96ba386..4a82174 100644
--- a/tools/testing/selftests/net/reuseport_bpf.c
+++ b/tools/testing/selftests/net/reuseport_bpf.c
@@ -111,9 +111,9 @@ static void attach_ebpf(int fd, uint16_t mod)
 	memset(&attr, 0, sizeof(attr));
 	attr.prog_type =3D BPF_PROG_TYPE_SOCKET_FILTER;
 	attr.insn_cnt =3D ARRAY_SIZE(prog);
-	attr.insns =3D (uint64_t)prog;
-	attr.license =3D (uint64_t)bpf_license;
-	attr.log_buf =3D (uint64_t)bpf_log_buf;
+	attr.insns =3D (unsigned long) &prog;
+	attr.license =3D (unsigned long) &bpf_license;
+	attr.log_buf =3D (unsigned long) &bpf_log_buf;
 	attr.log_size =3D sizeof(bpf_log_buf);
 	attr.log_level =3D 1;
 	attr.kern_version =3D 0;
@@ -351,8 +351,8 @@ static void test_filter_no_reuseport(const struct t=
est_params p)
 	memset(&eprog, 0, sizeof(eprog));
 	eprog.prog_type =3D BPF_PROG_TYPE_SOCKET_FILTER;
 	eprog.insn_cnt =3D ARRAY_SIZE(ecode);
-	eprog.insns =3D (uint64_t)ecode;
-	eprog.license =3D (uint64_t)bpf_license;
+	eprog.insns =3D (unsigned long) &ecode;
+	eprog.license =3D (unsigned long) &bpf_license;
 	eprog.kern_version =3D 0;
=20
 	memset(&cprog, 0, sizeof(cprog));
--
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* Aaro Koskinen <aaro.koskinen@iki.fi>:
> Hi,
> 
> On Wed, Jun 01, 2016 at 11:12:48PM +0200, Helge Deller wrote:
> > It fixes the problem mostly for me, there is just one little glitch
> > left, which is that the lines "FP[x] enabled" will still print an
> > invalid time. I assume it's because when this text is printed, the
> > clock/interrupts for the just booted CPU aren't enabled yet.
> > 
> > I'm not sure it's worth trying to fix that. 
> > One could print out that info at a later time, or just disabled it.
> > 
> > Helge
> > 
> > [    5.720014] Enabling PDC_PAT chassis codes support v0.05
> > [    6.644542] Releasing cpu 1 now, hpa=fffffffffe781000
> > [    0.196000] FP[1] enabled: Rev 1 Model 20
> > [    7.088432] CPU(s): 2 out of 2 PA8800 (Mako) at 900.000000 MHz online
> 
> Some tools that analyze boot time based on dmesg might get confused.

Yes, valid point.
Updated patch below.

Helge

__________


parisc: Fix printk time during boot

Avoid showing invalid printk time stamps during boot.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index e81ccf1..5adc339 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -324,8 +324,9 @@ int init_per_cpu(int cpunum)
 		per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
 		per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
 
-		printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
-			cpunum, coproc_cfg.revision, coproc_cfg.model);
+		if (cpunum == 0)
+			printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
+				cpunum, coproc_cfg.revision, coproc_cfg.model);
 
 		/*
 		** store status register to stack (hopefully aligned)
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 58dd680..31ec99a 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -309,11 +309,6 @@ void __init time_init(void)
 	clocks_calc_mult_shift(&cyc2ns_mul, &cyc2ns_shift, current_cr16_khz,
 				NSEC_PER_MSEC, 0);
 
-#if defined(CONFIG_HAVE_UNSTABLE_SCHED_CLOCK) && defined(CONFIG_64BIT)
-	/* At bootup only one 64bit CPU is online and cr16 is "stable" */
-	set_sched_clock_stable();
-#endif

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Subject: Re: [PATCH] soreuseport: add compat case for setsockopt
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Hello.

On 06/03/2016 08:18 PM, Helge Deller wrote:

> Commit 538950a ("soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF")

    At least 12 digits must be specified for SHA1. checkpatch.pl should've 
caught this.

> missed to add the compat case for the SO_ATTACH_REUSEPORT_CBPF
> setsockoption() option.
>
> Since both SO_ATTACH_FILTER and SO_ATTACH_REUSEPORT_CBPF use a struct
> sock_fprog let's combine the handling of both.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/net/compat.c b/net/compat.c
> index 5cfd26a..7e2aac9 100644
> --- a/net/compat.c
> +++ b/net/compat.c
> @@ -309,7 +309,7 @@ void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
>  	__scm_destroy(scm);
>  }
>
> -static int do_set_attach_filter(struct socket *sock, int level, int optname,
> +static int do_sockopt_fix_sock_fprog(struct socket *sock, int level, int optname,
>  				char __user *optval, unsigned int optlen)

    You need to realign this line now.

[...]

WBR, Sergei

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On 03.06.2016 20:11, Sergei Shtylyov wrote:
> Hello.
> 
> On 06/03/2016 08:18 PM, Helge Deller wrote:
> 
>> Commit 538950a ("soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF")
> 
>    At least 12 digits must be specified for SHA1. checkpatch.pl should've caught this.

Ok.

>> missed to add the compat case for the SO_ATTACH_REUSEPORT_CBPF
>> setsockoption() option.
>>
>> Since both SO_ATTACH_FILTER and SO_ATTACH_REUSEPORT_CBPF use a struct
>> sock_fprog let's combine the handling of both.
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/net/compat.c b/net/compat.c
>> index 5cfd26a..7e2aac9 100644
>> --- a/net/compat.c
>> +++ b/net/compat.c
>> @@ -309,7 +309,7 @@ void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
>>      __scm_destroy(scm);
>>  }
>>
>> -static int do_set_attach_filter(struct socket *sock, int level, int optname,
>> +static int do_sockopt_fix_sock_fprog(struct socket *sock, int level, int optname,
>>                  char __user *optval, unsigned int optlen)
> 
>    You need to realign this line now.

Sure, I will send an updated patch.

Any idea for a better naming than "do_sockopt_fix_sock_fprog()" ?

Helge
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On Fri, Jun 3, 2016 at 1:19 PM, Helge Deller <deller@gmx.de> wrote:
> This fixes the following compiler warnings when compiling the
> reuseport_bpf testcase on a 32 bit platform:
>
> reuseport_bpf.c: In function =E2=80=98attach_ebpf=E2=80=99:
> reuseport_bpf.c:114:15: warning: cast from pointer to integer of iffe=
rent size [-Wpointer-to-int-cast]
>
> Signed-off-by: Helge Deller <deller@gmx.de>
Acked-by: Craig Gallek <kraig@google.com>

Thanks!


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From: Craig Gallek <kraigatgoog@gmail.com>
Newsgroups: gmane.linux.network,gmane.linux.ports.parisc
Subject: Re: [PATCH] soreuseport: add compat case for setsockopt SO_ATTACH_REUSEPORT_CBPF
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On Fri, Jun 3, 2016 at 5:09 PM, Helge Deller <deller@gmx.de> wrote:
> Any idea for a better naming than "do_sockopt_fix_sock_fprog()" ?
Thanks for catching and fixing this.  I'd suggest simply leaving the
function name as-is.  Your fix to the condition in that function is
sufficient to address the issue.

Craig


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Subject: Re: [PATCH] soreuseport: add compat case for setsockopt
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On Fri, Jun 03, 2016 at 05:33:09PM -0400, Craig Gallek wrote:
> On Fri, Jun 3, 2016 at 5:09 PM, Helge Deller <deller@gmx.de> wrote:
> > Any idea for a better naming than "do_sockopt_fix_sock_fprog()" ?
> Thanks for catching and fixing this.  I'd suggest simply leaving the
> function name as-is.  Your fix to the condition in that function is
> sufficient to address the issue.

+1
and thanks for the fixes!



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Commit 538950a1b752 ("soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF")
missed to add the compat case for the SO_ATTACH_REUSEPORT_CBPF option.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/net/compat.c b/net/compat.c
index 5cfd26a..1373947 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -354,7 +354,8 @@ static int do_set_sock_timeout(struct socket *sock, int level,
 static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
 				char __user *optval, unsigned int optlen)
 {
-	if (optname == SO_ATTACH_FILTER)
+	if (optname == SO_ATTACH_FILTER ||
+	    optname == SO_ATTACH_REUSEPORT_CBPF)
 		return do_set_attach_filter(sock, level, optname,
 					    optval, optlen);
 	if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)


From - Thu Nov 08 21:38:58 2018
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: invalid printk time during boot on PA-RISC
Date: Sat, 4 Jun 2016 00:56:21 +0300
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To: Helge Deller <deller@gmx.de>
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Hi,

On Fri, Jun 03, 2016 at 07:22:31PM +0200, Helge Deller wrote:
> * Aaro Koskinen <aaro.koskinen@iki.fi>:
> > Hi,
> > 
> > On Wed, Jun 01, 2016 at 11:12:48PM +0200, Helge Deller wrote:
> > > It fixes the problem mostly for me, there is just one little glitch
> > > left, which is that the lines "FP[x] enabled" will still print an
> > > invalid time. I assume it's because when this text is printed, the
> > > clock/interrupts for the just booted CPU aren't enabled yet.
> > > 
> > > I'm not sure it's worth trying to fix that. 
> > > One could print out that info at a later time, or just disabled it.
> > > 
> > > Helge
> > > 
> > > [    5.720014] Enabling PDC_PAT chassis codes support v0.05
> > > [    6.644542] Releasing cpu 1 now, hpa=fffffffffe781000
> > > [    0.196000] FP[1] enabled: Rev 1 Model 20
> > > [    7.088432] CPU(s): 2 out of 2 PA8800 (Mako) at 900.000000 MHz online
> > 
> > Some tools that analyze boot time based on dmesg might get confused.
> 
> Yes, valid point.
> Updated patch below.
> 
> Helge
> 
> __________
> 
> 
> parisc: Fix printk time during boot
> 
> Avoid showing invalid printk time stamps during boot.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>

Reviewed-by: Aaro Koskinen <aaro.koskinen@iki.fi>

A.

> diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
> index e81ccf1..5adc339 100644
> --- a/arch/parisc/kernel/processor.c
> +++ b/arch/parisc/kernel/processor.c
> @@ -324,8 +324,9 @@ int init_per_cpu(int cpunum)
>  		per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
>  		per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
>  
> -		printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
> -			cpunum, coproc_cfg.revision, coproc_cfg.model);
> +		if (cpunum == 0)
> +			printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
> +				cpunum, coproc_cfg.revision, coproc_cfg.model);
>  
>  		/*
>  		** store status register to stack (hopefully aligned)
> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
> index 58dd680..31ec99a 100644
> --- a/arch/parisc/kernel/time.c
> +++ b/arch/parisc/kernel/time.c
> @@ -309,11 +309,6 @@ void __init time_init(void)
>  	clocks_calc_mult_shift(&cyc2ns_mul, &cyc2ns_shift, current_cr16_khz,
>  				NSEC_PER_MSEC, 0);
>  
> -#if defined(CONFIG_HAVE_UNSTABLE_SCHED_CLOCK) && defined(CONFIG_64BIT)
> -	/* At bootup only one 64bit CPU is online and cr16 is "stable" */
> -	set_sched_clock_stable();
> -#endif
> -
>  	start_cpu_itimer();	/* get CPU 0 started */
>  
>  	/* register at clocksource framework */
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
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From - Thu Nov 08 21:38:58 2018
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From: Daniel Borkmann <daniel@iogearbox.net>
Newsgroups: gmane.linux.network,gmane.linux.ports.parisc
Subject: Re: [PATCH v2] soreuseport: add compat case for setsockopt SO_ATTACH_REUSEPORT_CBPF
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On 06/03/2016 11:49 PM, Helge Deller wrote:
> Commit 538950a1b752 ("soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF")
> missed to add the compat case for the SO_ATTACH_REUSEPORT_CBPF option.
>
> Signed-off-by: Helge Deller <deller@gmx.de>

LGTM, thanks!

Acked-by: Daniel Borkmann <daniel@iogearbox.net>

[ Cc Willem: I believe we also need something similar for PACKET_FANOUT_DATA
   when PACKET_FANOUT_CBPF is requested since we have the same issue with the
   pointer in struct sock_fprog there, too. ]

> diff --git a/net/compat.c b/net/compat.c
> index 5cfd26a..1373947 100644
> --- a/net/compat.c
> +++ b/net/compat.c
> @@ -354,7 +354,8 @@ static int do_set_sock_timeout(struct socket *sock, int level,
>   static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
>   				char __user *optval, unsigned int optlen)
>   {
> -	if (optname == SO_ATTACH_FILTER)
> +	if (optname == SO_ATTACH_FILTER ||
> +	    optname == SO_ATTACH_REUSEPORT_CBPF)
>   		return do_set_attach_filter(sock, level, optname,
>   					    optval, optlen);
>   	if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
>



From - Thu Nov 08 21:38:58 2018
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From: Yinghai Lu <yinghai@kernel.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH v12 01/15] PCI: Let pci_mmap_page_range() take extra resource pointer
Date: Fri,  3 Jun 2016 17:06:28 -0700
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Cc: Wei Yang <weiyang@linux.vnet.ibm.com>,
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To: Bjorn Helgaas <bhelgaas@google.com>,
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This one is preparing patch for next one:
  PCI: Let pci_mmap_page_range() take resource addr

We need to pass extra resource pointer to avoid searching that again
for powerpc and microblaze prot set operation.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-cris-kernel@axis.com
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-am33-list@redhat.com
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
---
 arch/arm/include/asm/pci.h              | 2 --
 arch/arm/kernel/bios32.c                | 3 ++-
 arch/cris/arch-v32/drivers/pci/bios.c   | 3 ++-
 arch/cris/include/asm/pci.h             | 3 ---
 arch/ia64/include/asm/pci.h             | 2 --
 arch/ia64/pci/pci.c                     | 3 ++-
 arch/microblaze/include/asm/pci.h       | 3 ---
 arch/microblaze/pci/pci-common.c        | 3 ++-
 arch/mips/include/asm/pci.h             | 3 ---
 arch/mips/pci/pci.c                     | 3 ++-
 arch/mn10300/include/asm/pci.h          | 3 ---
 arch/mn10300/unit-asb2305/pci-asb2305.c | 3 ++-
 arch/parisc/include/asm/pci.h           | 3 ---
 arch/parisc/kernel/pci.c                | 3 ++-
 arch/powerpc/include/asm/pci.h          | 3 ---
 arch/powerpc/kernel/pci-common.c        | 3 ++-
 arch/sh/drivers/pci/pci.c               | 3 ++-
 arch/sh/include/asm/pci.h               | 2 --
 arch/sparc/include/asm/pci_64.h         | 4 ----
 arch/sparc/kernel/pci.c                 | 3 ++-
 arch/unicore32/include/asm/pci.h        | 2 --
 arch/unicore32/kernel/pci.c             | 3 ++-
 arch/x86/include/asm/pci.h              | 4 ----
 arch/x86/pci/i386.c                     | 3 ++-
 arch/xtensa/include/asm/pci.h           | 4 ----
 arch/xtensa/kernel/pci.c                | 3 ++-
 drivers/pci/pci-sysfs.c                 | 2 +-
 drivers/pci/pci.h                       | 2 +-
 drivers/pci/proc.c                      | 2 +-
 include/linux/pci.h                     | 6 ++++++
 30 files changed, 35 insertions(+), 54 deletions(-)

diff --git a/arch/arm/include/asm/pci.h b/arch/arm/include/asm/pci.h
index 057d381..51118a0 100644
--- a/arch/arm/include/asm/pci.h
+++ b/arch/arm/include/asm/pci.h
@@ -29,8 +29,6 @@ static inline int pci_proc_domain(struct pci_bus *bus)
 #define PCI_DMA_BUS_IS_PHYS     (1)
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-                               enum pci_mmap_state mmap_state, int write_combine);
 
 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 {
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index 05e61a2..d3245d1 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -602,7 +602,8 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 	return pci_enable_resources(dev, mask);
 }
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	if (mmap_state == pci_mmap_io)
diff --git a/arch/cris/arch-v32/drivers/pci/bios.c b/arch/cris/arch-v32/drivers/pci/bios.c
index 64a5fb9..082efb9 100644
--- a/arch/cris/arch-v32/drivers/pci/bios.c
+++ b/arch/cris/arch-v32/drivers/pci/bios.c
@@ -14,7 +14,8 @@ void pcibios_set_master(struct pci_dev *dev)
 	pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
 }
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long prot;
diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
index b1b289d..65198cb 100644
--- a/arch/cris/include/asm/pci.h
+++ b/arch/cris/include/asm/pci.h
@@ -42,9 +42,6 @@ struct pci_dev;
 #define PCI_DMA_BUS_IS_PHYS	(1)
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-			       enum pci_mmap_state mmap_state, int write_combine);
-
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index c0835b0..6a2f5d8 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -51,8 +51,6 @@ extern unsigned long ia64_max_iommu_merge_mask;
 #define PCI_DMA_BUS_IS_PHYS	(ia64_max_iommu_merge_mask == ~0UL)
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma,
-				enum pci_mmap_state mmap_state, int write_combine);
 #define HAVE_PCI_LEGACY
 extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
 				      struct vm_area_struct *vma,
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 8f6ac2f..1518d66 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -419,7 +419,8 @@ pcibios_align_resource (void *data, const struct resource *res,
 }
 
 int
-pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma,
+pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+		     struct vm_area_struct *vma,
 		     enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long size = vma->vm_end - vma->vm_start;
diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h
index fc3ecb5..1b93824 100644
--- a/arch/microblaze/include/asm/pci.h
+++ b/arch/microblaze/include/asm/pci.h
@@ -46,9 +46,6 @@ extern int pci_domain_nr(struct pci_bus *bus);
 extern int pci_proc_domain(struct pci_bus *bus);
 
 struct vm_area_struct;
-/* Map a range of PCI memory or I/O space for a device into user space */
-int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
-			enum pci_mmap_state mmap_state, int write_combine);
 
 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
 #define HAVE_PCI_MMAP	1
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 14cba60..95146b0 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -304,7 +304,8 @@ pgprot_t pci_phys_mem_access_prot(struct file *file,
  *
  * Returns a negative error code on failure, zero on success.
  */
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *rp,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	resource_size_t offset =
diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h
index 86b239d..71d2c3b 100644
--- a/arch/mips/include/asm/pci.h
+++ b/arch/mips/include/asm/pci.h
@@ -75,9 +75,6 @@ extern void pcibios_set_master(struct pci_dev *dev);
 
 #define HAVE_PCI_MMAP
 
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-	enum pci_mmap_state mmap_state, int write_combine);
-
 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
 
 static inline void pci_resource_to_user(const struct pci_dev *dev, int bar,
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index f1b11f0..e620333 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -319,7 +319,8 @@ void pcibios_fixup_bus(struct pci_bus *bus)
 EXPORT_SYMBOL(PCIBIOS_MIN_IO);
 EXPORT_SYMBOL(PCIBIOS_MIN_MEM);
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long prot;
diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index 51159ff..082b6de 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -74,9 +74,6 @@ static inline int pci_controller_num(struct pci_dev *dev)
 }
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-			       enum pci_mmap_state mmap_state,
-			       int write_combine);
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.c b/arch/mn10300/unit-asb2305/pci-asb2305.c
index b7ab837..40efdc6 100644
--- a/arch/mn10300/unit-asb2305/pci-asb2305.c
+++ b/arch/mn10300/unit-asb2305/pci-asb2305.c
@@ -211,7 +211,8 @@ void __init pcibios_resource_survey(void)
 	pcibios_allocate_resources(1);
 }
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long prot;
diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index defebd9..bb9ea90 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -201,7 +201,4 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 
 #define HAVE_PCI_MMAP
 
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-	enum pci_mmap_state mmap_state, int write_combine);
-
 #endif /* __ASM_PARISC_PCI_H */
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 0903c6a..8d5c34c 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -228,7 +228,8 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
 }
 
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long prot;
diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index a6f3ac0..662c1ef 100644
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -77,9 +77,6 @@ extern int pci_domain_nr(struct pci_bus *bus);
 extern int pci_proc_domain(struct pci_bus *bus);
 
 struct vm_area_struct;
-/* Map a range of PCI memory or I/O space for a device into user space */
-int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
-			enum pci_mmap_state mmap_state, int write_combine);
 
 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
 #define HAVE_PCI_MMAP	1
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 0f7a60f..6720b81 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -445,7 +445,8 @@ pgprot_t pci_phys_mem_access_prot(struct file *file,
  *
  * Returns a negative error code on failure, zero on success.
  */
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *rp,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	resource_size_t offset =
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index d5462b7..a1bc7ba 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -269,7 +269,8 @@ void __init_refok pcibios_report_status(unsigned int status_mask, int warn)
 	}
 }
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	/*
diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h
index 644314f..8e0fdb9 100644
--- a/arch/sh/include/asm/pci.h
+++ b/arch/sh/include/asm/pci.h
@@ -66,8 +66,6 @@ extern unsigned long PCIBIOS_MIN_IO, PCIBIOS_MIN_MEM;
 struct pci_dev;
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-	enum pci_mmap_state mmap_state, int write_combine);
 extern void pcibios_set_master(struct pci_dev *dev);
 
 /* Dynamic DMA mapping stuff.
diff --git a/arch/sparc/include/asm/pci_64.h b/arch/sparc/include/asm/pci_64.h
index 022d160..f7a93df 100644
--- a/arch/sparc/include/asm/pci_64.h
+++ b/arch/sparc/include/asm/pci_64.h
@@ -45,10 +45,6 @@ static inline int pci_proc_domain(struct pci_bus *bus)
 #define HAVE_ARCH_PCI_GET_UNMAPPED_AREA
 #define get_pci_unmapped_area get_fb_unmapped_area
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-			enum pci_mmap_state mmap_state,
-			int write_combine);
-
 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 {
 	return PCI_IRQ_NONE;
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index c2b202d..86d7dda 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -862,7 +862,8 @@ static void __pci_mmap_set_pgprot(struct pci_dev *dev, struct vm_area_struct *vm
  *
  * Returns a negative error code on failure, zero on success.
  */
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state,
 			int write_combine)
 {
diff --git a/arch/unicore32/include/asm/pci.h b/arch/unicore32/include/asm/pci.h
index 37e55d0..a5129086 100644
--- a/arch/unicore32/include/asm/pci.h
+++ b/arch/unicore32/include/asm/pci.h
@@ -17,8 +17,6 @@
 #include <mach/hardware.h> /* for PCIBIOS_MIN_* */
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-	enum pci_mmap_state mmap_state, int write_combine);
 
 #endif /* __KERNEL__ */
 #endif
diff --git a/arch/unicore32/kernel/pci.c b/arch/unicore32/kernel/pci.c
index d45fa5f..ff1b7ef 100644
--- a/arch/unicore32/kernel/pci.c
+++ b/arch/unicore32/kernel/pci.c
@@ -362,7 +362,8 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 	return 0;
 }
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long phys;
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 9ab7507..eb87481 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -88,10 +88,6 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
 
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-			       enum pci_mmap_state mmap_state,
-			       int write_combine);
-
 
 #ifdef CONFIG_PCI
 extern void early_quirks(void);
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 0a9f2ca..36463c7 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -411,7 +411,8 @@ static const struct vm_operations_struct pci_mmap_ops = {
 	.access = generic_access_phys,
 };
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long prot;
diff --git a/arch/xtensa/include/asm/pci.h b/arch/xtensa/include/asm/pci.h
index 5d6bd93..bb5510b 100644
--- a/arch/xtensa/include/asm/pci.h
+++ b/arch/xtensa/include/asm/pci.h
@@ -46,10 +46,6 @@ struct pci_dev;
 
 #define PCI_DMA_BUS_IS_PHYS	(1)
 
-/* Map a range of PCI memory or I/O space for a device into user space */
-int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
-			enum pci_mmap_state mmap_state, int write_combine);
-
 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
 #define HAVE_PCI_MMAP	1
 
diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c
index b848cc3..89c8687 100644
--- a/arch/xtensa/kernel/pci.c
+++ b/arch/xtensa/kernel/pci.c
@@ -362,7 +362,8 @@ __pci_mmap_set_pgprot(struct pci_dev *dev, struct vm_area_struct *vma,
  *
  * Returns a negative error code on failure, zero on success.
  */
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state,
 			int write_combine)
 {
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index d319a9c..5bbe20c 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -1027,7 +1027,7 @@ static int pci_mmap_resource(struct kobject *kobj, struct bin_attribute *attr,
 	pci_resource_to_user(pdev, i, res, &start, &end);
 	vma->vm_pgoff += start >> PAGE_SHIFT;
 	mmap_type = res->flags & IORESOURCE_MEM ? pci_mmap_mem : pci_mmap_io;
-	return pci_mmap_page_range(pdev, vma, mmap_type, write_combine);
+	return pci_mmap_page_range(pdev, res, vma, mmap_type, write_combine);
 }
 
 static int pci_mmap_resource_uc(struct file *filp, struct kobject *kobj,
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index a814bbb..7d339c3 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -30,7 +30,7 @@ enum pci_mmap_api {
 	PCI_MMAP_PROCFS	/* mmap on /proc/bus/pci/<BDF> */
 };
 int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct *vmai,
-		  enum pci_mmap_api mmap_api);
+		  enum pci_mmap_state mmap_type, enum pci_mmap_api mmap_api);
 #endif
 int pci_probe_reset_function(struct pci_dev *dev);
 
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 3f155e7..f19ee2a 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -245,7 +245,7 @@ static int proc_bus_pci_mmap(struct file *file, struct vm_area_struct *vma)
 	if (i >= PCI_ROM_RESOURCE)
 		return -ENODEV;
 
-	ret = pci_mmap_page_range(dev, vma,
+	ret = pci_mmap_page_range(dev, &dev->resource[i], vma,
 				  fpriv->mmap_state,
 				  fpriv->write_combine);
 	if (ret < 0)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index b67e4df..3c1a0f4 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -70,6 +70,12 @@ enum pci_mmap_state {
 	pci_mmap_mem
 };
 
+struct vm_area_struct;
+/* Map a range of PCI memory or I/O space for a device into user space */
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
+			enum pci_mmap_state mmap_state, int write_combine);
+
 /*
  *  For PCI devices, the region numbers are assigned this way:
  */
-- 
2.8.3

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One of the debian buildd servers had this crash in the syslog without
any other information:

 Unaligned handler failed, ret = -2
 clock_adjtime (pid 22578): Unaligned data reference (code 28)
 CPU: 1 PID: 22578 Comm: clock_adjtime Tainted: G  E  4.5.0-2-parisc64-smp #1 Debian 4.5.4-1
 task: 000000007d9960f8 ti: 00000001bde7c000 task.ti: 00000001bde7c000

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
 PSW: 00001000000001001111100000001111 Tainted: G            E  
 r00-03  000000ff0804f80f 00000001bde7c2b0 00000000402d2be8 00000001bde7c2b0
 r04-07  00000000409e1fd0 00000000fa6f7fff 00000001bde7c148 00000000fa6f7fff
 r08-11  0000000000000000 00000000ffffffff 00000000fac9bb7b 000000000002b4d4
 r12-15  000000000015241c 000000000015242c 000000000000002d 00000000fac9bb7b
 r16-19  0000000000028800 0000000000000001 0000000000000070 00000001bde7c218
 r20-23  0000000000000000 00000001bde7c210 0000000000000002 0000000000000000
 r24-27  0000000000000000 0000000000000000 00000001bde7c148 00000000409e1fd0
 r28-31  0000000000000001 00000001bde7c320 00000001bde7c350 00000001bde7c218
 sr00-03  0000000001200000 0000000001200000 0000000000000000 0000000001200000
 sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

 IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402d2e84 00000000402d2e88
  IIR: 0ca0d089    ISR: 0000000001200000  IOR: 00000000fa6f7fff
  CPU:        1   CR30: 00000001bde7c000 CR31: ffffffffffffffff
  ORIG_R28: 00000002369fe628
  IAOQ[0]: compat_get_timex+0x2dc/0x3c0
  IAOQ[1]: compat_get_timex+0x2e0/0x3c0
  RP(r2): compat_get_timex+0x40/0x3c0
 Backtrace:
  [<00000000402d4608>] compat_SyS_clock_adjtime+0x40/0xc0
  [<0000000040205024>] syscall_exit+0x0/0x14

This means the userspace program clock_adjtime did call the clock_adjtime()
syscall and then crashed inside the compat_get_timex() function.
Syscalls should never crash programs, but instead return EFAULT.

The IIR register contains the executed instruction, which disassebles
into "ldw 0(sr3,r5),r9".
This load-word instruction is part of __get_user() which tried to read the word
at %r5/IOR (0xfa6f7fff). This means the unaligned handler jumped in.  The
unaligned handler is able to emulate all ldw instructions, but it fails if it
fails to read the source e.g. because of page fault.

The following program reproduces the problem:

#define _GNU_SOURCE
#include <unistd.h>
#include <sys/syscall.h>
#include <sys/mman.h>

int main(void) {
        /* allocate 8k */
        char *ptr = mmap(NULL, 2*4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
        /* free second half (upper 4k) and make it invalid. */
        munmap(ptr+4096, 4096);
        /* syscall where first int is unaligned and clobbers into invalid memory region */
        /* syscall should return EFAULT */
        return syscall(__NR_clock_adjtime, 0, ptr+4095);
}

To fix this issue we simply need to check if the faulting instruction address
is in the exception fixup table when the unaligned handler failed. If it
is, call the fixup routine instead of crashing.

While looking at the unaligned handler I found another issue as well: The
target register should not be modified if the handler was unsuccessful.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org

diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index d7c0acb..2b65c01 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -666,7 +665,7 @@ void handle_unaligned(struct pt_regs *regs)
 		break;
 	}
 
-	if (modify && R1(regs->iir))
+	if (ret == 0 && modify && R1(regs->iir))
 		regs->gr[R1(regs->iir)] = newbase;
 
 
@@ -677,6 +676,14 @@ void handle_unaligned(struct pt_regs *regs)
 
 	if (ret)
 	{
+		/*
+		 * The unaligned handler failed.
+		 * If we were called by __get_user() or __put_user() jump
+		 * to it's exception fixup handler instead of crashing.
+		 */
+		if (!user_mode(regs) && fixup_exception(regs))
+			return;
+
 		printk(KERN_CRIT "Unaligned handler failed, ret = %d\n", ret);
 		die_if_kernel("Unaligned data reference", regs, 28);
 
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Move die_if_kernel() prototype into traps.h header
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/traps.h b/arch/parisc/include/asm/traps.h
index 4736020..5e953ab 100644
--- a/arch/parisc/include/asm/traps.h
+++ b/arch/parisc/include/asm/traps.h
@@ -8,6 +8,8 @@ struct pt_regs;
 void parisc_terminate(char *msg, struct pt_regs *regs,
 		int code, unsigned long offset) __noreturn __cold;
 
+void die_if_kernel(char *str, struct pt_regs *regs, long err);
+
 /* mm/fault.c */
 void do_page_fault(struct pt_regs *regs, unsigned long code,
 		unsigned long address);
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index d7c0acb..2b65c01 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -28,6 +28,7 @@
 #include <linux/ratelimit.h>
 #include <asm/uaccess.h>
 #include <asm/hardirq.h>
+#include <asm/traps.h>
 
 /* #define DEBUG_UNALIGNED 1 */
 
@@ -130,8 +131,6 @@
 
 int unaligned_enabled __read_mostly = 1;
 
-void die_if_kernel (char *str, struct pt_regs *regs, long err);

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Subject: Re: rhashtable - rhashtable_insert_fast failed
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Hi Phil,

On 04.06.2016 09:35, Phil Sutter wrote:
> [Cc'ing other interested parties, therefore full-quoting.]
> On Fri, Jun 03, 2016 at 10:22:26PM +0200, Helge Deller wrote:
>> I'm testing 4.7.0-rc1-64bit on a parisc/hppa machine and get
>> those message with CONFIG_TEST_RHASHTABLE=y.
>>
>> Is this expected/normal ?
> 
> No, this shouldn't happen. Can you possibly bisect the issue?

I did some more testing.


>> [   11.004021] Running rhashtable test nelem=8, max_size=0, shrinking=0
>> [   11.060013] Test 00:
>> [   11.181391]   Adding 50000 keys
>> [   11.299533] Info: encountered resize
>> [   11.344499] Info: encountered resize
>> [   11.392971] Info: encountered resize
>> [   11.447632]   Traversal complete: counted=50628, nelems=50000, entries=50000, table-jumps=3
>> [   11.556024] Test failed: Total count mismatch ^^^

I still see this randomly on my boxes.
Still need to check further. 

>> [   11.647150]   Traversal complete: counted=50000, nelems=50000, entries=50000, table-jumps=0
>> [   11.760022]   Deleting 50000 keys
>> [   11.822941]   Duration of test: 596000000 ns
>> [   11.876057] Test 01:
>> [   11.919907]   Adding 50000 keys
>> [   12.024027] Info: encountered resize
>> [   12.024767] Info: encountered resize
>> [   12.072981] Info: encountered resize
>> [   12.169265]   Traversal complete: counted=53763, nelems=50000, entries=50000, table-jumps=3
>> [   12.172021] Test failed: Total count mismatch ^^^
>> [   12.377004]   Traversal complete: counted=50000, nelems=50000, entries=50000, table-jumps=0
>> [   12.380022]   Deleting 50000 keys
>> [   12.552900]   Duration of test: 596000000 ns
>> [   12.556069] Test 02:
>> [   12.650017]   Adding 50000 keys
>> [   12.746381] Info: encountered resize
>> [   12.792486] Info: encountered resize
>> [   12.840977] Info: encountered resize
>> [   12.894604]   Traversal complete: counted=52831, nelems=50000, entries=50000, table-jumps=3
>> [   13.004025] Test failed: Total count mismatch ^^^
>> [   13.094046]   Traversal complete: counted=50000, nelems=50000, entries=50000, table-jumps=0
>> [   13.204022]   Deleting 50000 keys
>> [   13.269555]   Duration of test: 576000000 ns
>> [   13.324062] Test 03:
>> [   13.366586]   Adding 50000 keys
>> [   13.466624] Info: encountered resize
>> [   13.468255] Info: encountered resize
>> [   13.516485] Info: encountered resize
>> [   13.564977] Info: encountered resize
>> [   13.662159]   Traversal complete: counted=52381, nelems=50000, entries=50000, table-jumps=4
>> [   13.664022] Test failed: Total count mismatch ^^^
>> [   13.870009]   Traversal complete: counted=50000, nelems=50000, entries=50000, table-jumps=0
>> [   13.876015]   Deleting 50000 keys
>> [   14.045912]   Duration of test: 640000000 ns
>> [   14.048065] Average test time: 602000000
>> [   14.104017] Testing concurrent rhashtable access from 10 threads
>> [   14.537134]   thread[6]: rhashtable_insert_fast failed
>> [   14.540722]   thread[5]: rhashtable_insert_fast failed
>> [   14.540747]   thread[1]: rhashtable_insert_fast failed
>> [   14.540757]   thread[3]: rhashtable_insert_fast failed
>> [   14.540767]   thread[0]: rhashtable_insert_fast failed
>> [   14.540862]   thread[7]: rhashtable_insert_fast failed
>> [   14.540873]   thread[9]: rhashtable_insert_fast failed
>> [   14.540874]   thread[2]: rhashtable_insert_fast failed
>> [   14.540874]   thread[4]: rhashtable_insert_fast failed
>> [   14.676061] Test failed: thread 0 returned: -12
>> [   14.676102] Test failed: thread 1 returned: -12
>> [   14.676120]   thread[8]: rhashtable_insert_fast failed
>> [   14.676153] Test failed: thread 2 returned: -12
>> [   14.676176] Test failed: thread 3 returned: -12
>> [   14.676199] Test failed: thread 4 returned: -12
>> [   14.676224] Test failed: thread 5 returned: -12
>> [   15.516892] Test failed: thread 6 returned: -12
>> [   15.644271] Test failed: thread 7 returned: -12
>> [   15.708319] Test failed: thread 8 returned: -12
>> [   15.772074] Test failed: thread 9 returned: -12
>> [   15.832013] Started 10 threads, 10 failed

Those -12 error messages seem to indicate, that there is memory
pressure on my box (ENOMEM), right?
That might be true for parisc right now as reported by Mikulas at
 http://www.spinics.net/lists/linux-parisc/msg07066.html
and fixed by this patch:
 http://marc.info/?l=linux-mm&m=146468933302010&w=2
which I applied then.

Additionally I enabled the enomem_retry kernel option.

With those changes I get:
[   71.752666] Testing concurrent rhashtable access from 10 threads
[   72.548724]  8812 insertions retried after -ENOMEM
[   72.611804]  8799 insertions retried after -ENOMEM
[   72.674785]  8906 insertions retried after -ENOMEM
[   72.737836]  8895 insertions retried after -ENOMEM
[   72.800804]  9337 insertions retried after -ENOMEM
[   72.863843]  11122 insertions retried after -ENOMEM
[   72.927993]  11163 insertions retried after -ENOMEM
[   72.992219]  11121 insertions retried after -ENOMEM
[   73.056331]  11011 insertions retried after -ENOMEM
[   73.120492]  11121 insertions retried after -ENOMEM
[   73.621555]   thread[4]: 8799 insertions retried due to memory pressure
[   73.709060]   thread[5]: 8906 insertions retried due to memory pressure
[   73.804561]   thread[3]: 8895 insertions retried due to memory pressure
[   73.894631]   thread[1]: 9337 insertions retried due to memory pressure
[   73.988483]   thread[0]: 11122 insertions retried due to memory pressure
[   74.087575]   thread[7]: 11163 insertions retried due to memory pressure
[   74.180283]   thread[6]: 11121 insertions retried due to memory pressure
[   74.276768]   thread[2]: 11121 insertions retried due to memory pressure
[   74.367538]   thread[9]: 11011 insertions retried due to memory pressure
[   74.472908]   thread[8]: 8812 insertions retried due to memory pressure
[   79.281516] Started 10 threads, 0 failed

I'll try to investigate further on this.

Helge 
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From - Thu Nov 08 21:38:59 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc architecture fixes for 4.7-rc2
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Hi Linus,

Please pull some parisc architecture fixes for kernel 4.7-rc2 from 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.7-2

Changes in this patch set:

- Fix printk time stamps on SMP systems which got wrong due to a patch which
  was added during the merge window
- Fix two bugs in the stack backtrace code: Races in module unloading and
  possible invalid accesses to memory due to wrong instruction decoding
  (Mikulas Patocka)
- Fix userspace crash when syscalls access invalid unaligned userspace
  addresses. Those syscalls will now return EFAULT as expected. (tagged for
  stable kernel series)

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (3):
      parisc: Fix printk time during boot
      parisc: Fix pagefault crash in unaligned __get_user() call
      parisc: Move die_if_kernel() prototype into traps.h header

Mikulas Patocka (1):
      parisc: Fix backtrace on PA-RISC

 arch/parisc/include/asm/traps.h |  2 ++
 arch/parisc/kernel/processor.c  |  5 +++--
 arch/parisc/kernel/time.c       |  5 -----
 arch/parisc/kernel/unaligned.c  | 13 ++++++++++---
 arch/parisc/kernel/unwind.c     | 22 ++++++++++++++--------
 5 files changed, 29 insertions(+), 18 deletions(-)
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Subject: Re: [PATCH v2] soreuseport: add compat case for setsockopt SO_ATTACH_REUSEPORT_CBPF
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Cc: Helge Deller <deller@gmx.de>,
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To: Daniel Borkmann <daniel@iogearbox.net>
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> Acked-by: Daniel Borkmann <daniel@iogearbox.net>
>
> [ Cc Willem: I believe we also need something similar for PACKET_FANOUT_DATA
>   when PACKET_FANOUT_CBPF is requested since we have the same issue with the
>   pointer in struct sock_fprog there, too. ]

Indeed. I'll send a patch in a few days (am traveling). Thanks for the
heads-up, Daniel.

(apologies if you also received an html version of this reply)
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From - Thu Nov 08 21:38:59 2018
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From: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.x86-64.general,gmane.linux.kernel.pci,gmane.comp.video.dri.devel,gmane.linux.kernel.samsung-soc,gmane.linux.ports.arm.mediatek,gmane.linux.ports.arm.msm,gmane.comp.freedesktop.xorg.drivers.freedreno,gmane.comp.freedesktop.xorg.nouveau,gmane.linux.ports.arm.rockchip,gmane.linux.drivers.rdma,gmane.linux.kernel.iommu,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.omap
Subject: Re: [RFC v3 44/45] dma-mapping: Remove dma_get_attr
Date: Mon, 6 Jun 2016 08:45:12 +0200
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References: <1464881987-13203-1-git-send-email-k.kozlowski@samsung.com>
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Cc: Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Russell King <linux@armlinux.org.uk>,
        Stefano Stabellini <sstabellini@kernel.org>,
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To: Krzysztof Kozlowski <k.kozlowski@samsung.com>
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Around Thu 02 Jun 2016 17:39:46 +0200 or thereabout, Krzysztof Kozlowski wrote:
> After switching DMA attributes to unsigned long it is easier to just
> compare the bits.
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> ---
>  Documentation/DMA-API.txt                      |  4 +--
>  arch/arc/mm/dma.c                              |  4 +--
>  arch/arm/mm/dma-mapping.c                      | 36 ++++++++++++--------------
>  arch/arm/xen/mm.c                              |  4 +--
>  arch/arm64/mm/dma-mapping.c                    | 10 +++----
>  arch/avr32/mm/dma-coherent.c                   |  4 +--

For the AVR32 related change

Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>

>  arch/ia64/sn/pci/pci_dma.c                     | 10 ++-----
>  arch/metag/kernel/dma.c                        |  2 +-
>  arch/mips/mm/dma-default.c                     |  6 ++---
>  arch/openrisc/kernel/dma.c                     |  4 +--
>  arch/parisc/kernel/pci-dma.c                   |  2 +-
>  arch/powerpc/platforms/cell/iommu.c            | 10 +++----
>  drivers/gpu/drm/rockchip/rockchip_drm_gem.c    |  2 +-
>  drivers/iommu/dma-iommu.c                      |  2 +-
>  drivers/media/v4l2-core/videobuf2-dma-contig.c |  2 +-
>  include/linux/dma-mapping.h                    | 13 ----------
>  16 files changed, 46 insertions(+), 69 deletions(-)

<snipp non-AVR32>

> diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
> index fc51f4421933..58610d0df7ed 100644
> --- a/arch/avr32/mm/dma-coherent.c
> +++ b/arch/avr32/mm/dma-coherent.c
> @@ -109,7 +109,7 @@ static void *avr32_dma_alloc(struct device *dev, size_t size,
>  		return NULL;
>  	phys = page_to_phys(page);
>  
> -	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs)) {
> +	if (attrs & DMA_ATTR_WRITE_COMBINE) {
>  		/* Now, map the page into P3 with write-combining turned on */
>  		*handle = phys;
>  		return __ioremap(phys, size, _PAGE_BUFFER);
> @@ -123,7 +123,7 @@ static void avr32_dma_free(struct device *dev, size_t size,
>  {
>  	struct page *page;
>  
> -	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs)) {
> +	if (attrs & DMA_ATTR_WRITE_COMBINE) {
>  		iounmap(cpu_addr);
>  
>  		page = phys_to_page(handle);

<snipp non-AVR32>

-- 
mvh
Hans-Christian Noren Egtvedt



From - Thu Nov 08 21:38:59 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.x86-64.general,gmane.linux.kernel.pci,gmane.comp.video.dri.devel,gmane.linux.kernel.samsung-soc,gmane.linux.ports.arm.mediatek,gmane.linux.ports.arm.msm,gmane.comp.freedesktop.xorg.drivers.freedreno,gmane.comp.freedesktop.xorg.nouveau,gmane.linux.ports.arm.rockchip,gmane.linux.drivers.rdma,gmane.linux.kernel.iommu,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.omap
Subject: Re: [RFC v3 07/45] avr32: dma-mapping: Use unsigned long for
 dma_attrs
Date: Mon, 6 Jun 2016 08:43:57 +0200
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Approved: news@gmane.org
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References: <1464881987-13203-1-git-send-email-k.kozlowski@samsung.com>
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Cc: Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Russell King <linux@armlinux.org.uk>,
        Stefano Stabellini <sstabellini@kernel.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Haavard Skinnemoen <hskinnemoen@gmail.com>,
        Steven Miao <realmz6@gmail.com>,
        Mark Salter <msalter@redhat.com>,
        Aurelien Jacquiot <a-jacquiot@ti.com>,
        Mikael Starvik <starvik@axis.com>,
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        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
        Geert Uyt
To: Krzysztof Kozlowski <k.kozlowski@samsung.com>
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Around Thu 02 Jun 2016 17:39:09 +0200 or thereabout, Krzysztof Kozlowski wrote:
> Split out subsystem specific changes for easier reviews. This will be
> squashed with main commit.
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>

> ---
>  arch/avr32/mm/dma-coherent.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
> index 92cf1fb2b3e6..fc51f4421933 100644
> --- a/arch/avr32/mm/dma-coherent.c
> +++ b/arch/avr32/mm/dma-coherent.c
> @@ -99,7 +99,7 @@ static void __dma_free(struct device *dev, size_t size,
>  }
>  
>  static void *avr32_dma_alloc(struct device *dev, size_t size,
> -		dma_addr_t *handle, gfp_t gfp, struct dma_attrs *attrs)
> +		dma_addr_t *handle, gfp_t gfp, unsigned long attrs)
>  {
>  	struct page *page;
>  	dma_addr_t phys;
> @@ -119,7 +119,7 @@ static void *avr32_dma_alloc(struct device *dev, size_t size,
>  }
>  
>  static void avr32_dma_free(struct device *dev, size_t size,
> -		void *cpu_addr, dma_addr_t handle, struct dma_attrs *attrs)
> +		void *cpu_addr, dma_addr_t handle, unsigned long attrs)
>  {
>  	struct page *page;
>  
> @@ -142,7 +142,7 @@ static void avr32_dma_free(struct device *dev, size_t size,
>  
>  static dma_addr_t avr32_dma_map_page(struct device *dev, struct page *page,
>  		unsigned long offset, size_t size,
> -		enum dma_data_direction direction, struct dma_attrs *attrs)
> +		enum dma_data_direction direction, unsigned long attrs)
>  {
>  	void *cpu_addr = page_address(page) + offset;
>  
> @@ -152,7 +152,7 @@ static dma_addr_t avr32_dma_map_page(struct device *dev, struct page *page,
>  
>  static int avr32_dma_map_sg(struct device *dev, struct scatterlist *sglist,
>  		int nents, enum dma_data_direction direction,
> -		struct dma_attrs *attrs)
> +		unsigned long attrs)
>  {
>  	int i;
>  	struct scatterlist *sg;
-- 
mvh
Hans-Christian Noren Egtvedt



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From: Mikulas Patocka <mpatocka@redhat.com>
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Subject: Re: invalid printk time during boot on PA-RISC
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To: Helge Deller <deller@gmx.de>
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On Fri, 3 Jun 2016, Helge Deller wrote:

> * Aaro Koskinen <aaro.koskinen@iki.fi>:
> > Hi,
> > 
> > On Wed, Jun 01, 2016 at 11:12:48PM +0200, Helge Deller wrote:
> > > It fixes the problem mostly for me, there is just one little glitch
> > > left, which is that the lines "FP[x] enabled" will still print an
> > > invalid time. I assume it's because when this text is printed, the
> > > clock/interrupts for the just booted CPU aren't enabled yet.
> > > 
> > > I'm not sure it's worth trying to fix that. 
> > > One could print out that info at a later time, or just disabled it.
> > > 
> > > Helge
> > > 
> > > [    5.720014] Enabling PDC_PAT chassis codes support v0.05
> > > [    6.644542] Releasing cpu 1 now, hpa=fffffffffe781000
> > > [    0.196000] FP[1] enabled: Rev 1 Model 20
> > > [    7.088432] CPU(s): 2 out of 2 PA8800 (Mako) at 900.000000 MHz online
> > 
> > Some tools that analyze boot time based on dmesg might get confused.
> 
> Yes, valid point.
> Updated patch below.
> 
> Helge
> 
> __________
> 
> 
> parisc: Fix printk time during boot
> 
> Avoid showing invalid printk time stamps during boot.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
> index e81ccf1..5adc339 100644
> --- a/arch/parisc/kernel/processor.c
> +++ b/arch/parisc/kernel/processor.c
> @@ -324,8 +324,9 @@ int init_per_cpu(int cpunum)
>  		per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
>  		per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
>  
> -		printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
> -			cpunum, coproc_cfg.revision, coproc_cfg.model);
> +		if (cpunum == 0)
> +			printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
> +				cpunum, coproc_cfg.revision, coproc_cfg.model);

BTW. you could also remove "[%d] cpunum" from printk --- if cpunum is 
always 0 here.

Mikulas

>  
>  		/*
>  		** store status register to stack (hopefully aligned)
> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
> index 58dd680..31ec99a 100644
> --- a/arch/parisc/kernel/time.c
> +++ b/arch/parisc/kernel/time.c
> @@ -309,11 +309,6 @@ void __init time_init(void)
>  	clocks_calc_mult_shift(&cyc2ns_mul, &cyc2ns_shift, current_cr16_khz,
>  				NSEC_PER_MSEC, 0);
>  
> -#if defined(CONFIG_HAVE_UNSTABLE_SCHED_CLOCK) && defined(CONFIG_64BIT)
> -	/* At bootup only one 64bit CPU is online and cr16 is "stable" */
> -	set_sched_clock_stable();
> -#endif
> -
>  	start_cpu_itimer();	/* get CPU 0 started */
>  
>  	/* register at clocksource framework */
> 
--
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MzIgYml0IHBsYXRmb3JtOg0KPiANCj4gcmV1c2Vwb3J0X2JwZi5jOiBJbiBmdW5jdGlvbiChYXR0
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cG9pbnRlciB0byBpbnRlZ2VyIG9mIGlmZmVyZW50IHNpemUgWy1XcG9pbnRlci10by1pbnQtY2Fz
dF0NCj4gDQo+IFNpZ25lZC1vZmYtYnk6IEhlbGdlIERlbGxlciA8ZGVsbGVyQGdteC5kZT4NCg0K
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Subject: Re: [PATCH v2] soreuseport: add compat case for setsockopt
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From: Helge Deller <deller@gmx.de>
Date: Fri, 3 Jun 2016 23:49:17 +0200

> Commit 538950a1b752 ("soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF")
> missed to add the compat case for the SO_ATTACH_REUSEPORT_CBPF option.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>

Applied.
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PA-RISC is interesting; integer multiplies are implemented in the
FPU, so are painful in the kernel.  But it tries to be friendly to
shift-and-add sequences.

__hash_32 is implemented using the same shift-and-add sequence as
Microblaze, just scheduled for the PA7100.  (It's 2-way superscalar
but in-order, like the Pentium.)

hash_64 was tricky, but a suggestion from Jason Thong allowed a good
solution by breaking up the multiplier.  After an embarrassing amount
of fiddling about, I found a 19-instruction sequence for the multiply
that can be executed in 10 cycles using only 4 temporaries.

(The PA8xxx can issue 4 instructions per cycle, but 2 must be ALU ops
and 2 must be loads/stores.  And the final add can't be paired.)

An alternative implementation is included, but not enabled by default:
Thomas Wang's 64-to-32-bit hash.  This is more compact than the multiply,
but has a slightly longer dependency chain.

Signed-off-by: George Spelvin <linux@sciencehorizons.net>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
Okay, I'm happy with this one.  Helge, could you test it whenever you
get a chance?

I've left the alternate hash_64 path in for now, but the one not chosen
should be deleted before sending to Linus.

 arch/parisc/Kconfig            |   1 +
 arch/parisc/include/asm/hash.h | 182 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 183 insertions(+)
 create mode 100644 arch/parisc/include/asm/hash.h

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 88cfaa8a..8ed2a444 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -30,6 +30,7 @@ config PARISC
 	select TTY # Needed for pdc_cons.c
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_ARCH_AUDITSYSCALL
+	select HAVE_ARCH_HASH
 	select HAVE_ARCH_SECCOMP_FILTER
 	select ARCH_NO_COHERENT_DMA_MMAP
 
diff --git a/arch/parisc/include/asm/hash.h b/arch/parisc/include/asm/hash.h
new file mode 100644
index 00000000..a21b3d2f
--- /dev/null
+++ b/arch/parisc/include/asm/hash.h
@@ -0,0 +1,182 @@
+#ifndef _ASM_HASH_H
+#define _ASM_HASH_H
+
+/*
+ * HP-PA only implements integer multiply in the FPU.  However, for
+ * integer multiplies by constant, it has a number of shift-and-add
+ * (but no shift-and-subtract, sigh!) instructions that a compiler
+ * can synthesize a code sequence with.
+ *
+ * Unfortunately, GCC isn't very efficient at using them.  For example
+ * it uses three instructions for "x *= 21" when only two are needed.
+ * But we can find a sequence manually.
+ */
+
+#define HAVE_ARCH__HASH_32 1
+
+/*
+ * This is a multiply by GOLDEN_RATIO_32 = 0x61C88647 optimized for the
+ * PA7100 pairing rules.  This is an in-order 2-way superscalar processor.
+ * Only one instruction in a pair may be a shift (by more than 3 bits),
+ * but other than that, simple ALU ops (including shift-and-add by up
+ * to 3 bits) may be paired arbitrarily.
+ *
+ * PA8xxx processors are out of order and don't need such careful
+ * scheduling.
+ *
+ * This 6-step sequence was found by Yevgen Voronenko's implementation
+ * of the Hcub algorithm at http://spiral.ece.cmu.edu/mcm/gen.html.
+ */
+static inline u32 __attribute_const__ __hash_32(u32 x)
+{
+	u32 a, b, c;
+
+	/*
+	 * Phase 1: Compute  a = (x << 19) + x,
+	 * b = (x << 9) + a, c = (x << 23) + b.
+	 */
+	a = x << 19;		/* Two shifts can't be paired */
+	b = x << 9;	a += x;
+	c = x << 23;	b += a;
+			c += b;
+	/* Phase 2: Return (b<<11) + (c<<6) + (a<<3) - c */
+	b <<= 11;
+	a += c << 3;	b -= c;
+	return (a << 3) + b;
+}
+
+#if BITS_PER_LONG == 64
+
+#define HAVE_ARCH_HASH_64 1
+
+#if HAVE_ARCH_HASH_64 == 1
+/*
+ * Multiply by GOLDEN_RATIO_64.  Finding a good shift-and-add chain for
+ * this is tricky, because available software for the purpose chokes on
+ * constants this large.  (It's mostly used for compiling FIR filter
+ * coefficients into FPGAs.)
+ *
+ * However, Jason Thong pointed out a work-around.  The Hcub software
+ * (http://spiral.ece.cmu.edu/mcm/gen.html) is designed for *multiple*
+ * constant multiplication, and is good at finding shift-and-add chains
+ * which share common terms.
+ *
+ * Looking at 0x0x61C8864680B583EB in binary:
+ * 0110000111001000100001100100011010000000101101011000001111101011
+ *  \______________/    \__________/       \_______/     \________/
+ *   \____________________________/         \____________________/
+ * you can see the non-zero bits are divided into several well-separated
+ * blocks.  Hcub can find algorithms for those terms separately, which
+ * can then be shifted and added together.
+ *
+ * Various combinations all work, but using just two large blocks,
+ * 0xC3910C8D << 31 in the high bits, and 0xB583EB in the low bits,
+ * produces as good an algorithm as any, and with one more small shift
+ * than alternatives.
+ *
+ * The high bits are a larger number and more work to compute, as well
+ * as needing one extra cycle to shift left 31 bits before the final
+ * addition, so they are the critical path for scheduling.  The low bits
+ * can fit into the scheduling slots left over.
+ *
+ * This is scheduled for the PA-8xxx series, which can issue up to
+ * 2 ALU operations (of any type, adds or shifts) per cycle.
+ *
+ * In several places, the construction asm("" : (=r) (dest) : "0" (src));
+ * is used.  This basically performs "dest = src", but prevents gcc from
+ * inferring anything about the value assigned to "dest".  This blocks it
+ * from some mistaken optimizations like rearranging "y += z; x -= y;"
+ * into "x -= z; x -= y;", or "x <<= 23; y += x; z += x << 1;" into
+ * "y += x << 23; z += x << 24;".
+ *
+ * Because the actual assembly generated is empty, this construct is
+ * usefully portable across all GCC platforms, and so can be test-compiled
+ * on non-PA systems.
+ *
+ * In two places, additional unused input dependencies are added.  This
+ * forces GCC's scheduling so it does not rearrange instructions too much.
+ */
+static __always_inline u32 __attribute_const__
+hash_64(u64 a, unsigned int bits)
+{
+	u64 b, c, d;
+
+	asm("" : "=r" (b) : "0" (a * 5));	// b = a * 5
+	c = a << 13;
+
+	b = (b << 2) + a;			// b = a * 21
+	asm("" : "=r" (d) : "0" (a << 17));	// d = a << 17
+
+	a = b + (a << 1);			// a = a * 23
+	c += d;
+
+	d = a << 10;
+	asm("" : "=r" (a) : "0" (a << 19));	// a <<= 19
+
+	d = a - d;
+	asm("" : "=r" (a) : "0" (a << 4),	// a <<= 4;
+		 "X" (d));			// Force dependency, damn it!
+
+	a += b;
+	c += b;
+
+	d -= c;
+	c += a << 1;
+
+	asm("" : "=r" (b) : "0" (b << 7+31),	// b <<= 7+31;
+		 "X" (c), "X" (d));		// Force dependency, damn it!
+	a += c << 3;
+
+	b += d;
+	a <<= 31;
+
+	a += b;
+	return a >> (64 - bits);
+}
+
+#else /* HAVE_ARCH_HASH_64 != 1 */
+/*
+ * If we don't care about matching the generic function, here's an
+ * alternative hash function; Thomas Wang's 64-to-32 bit hash function.
+ * https://web.archive.org/web/2011/http://www.concentric.net/~Ttwang/tech/inthash.htm
+ * http://burtleburtle.net/bob/hash/integer.html
+ *
+ * This algorithm concentrates the entropy in the low bits of the output,
+ * so they are returned.
+ *
+ * Compared to the multiply, this uses 2 registers (rather than 4), and
+ * 12 instructions (rather than 20), but each instruction in sequentially
+ * dependent, so it's 10 cycles (rather than 8).
+ *
+ * (In both cases, I'm not counting the final extract of the desired bits.)
+ */
+static __always_inline u32 __attribute_const__
+hash_64(u64 x, unsigned int bits)
+{
+	u64 y;
+
+	if (!__builtin_constant_p(bits))
+		asm("mtsarcm %1" : "=q" (bits) : "r" (bits));
+
+	x = ~x + (x << 18);
+	x ^= x >> 31;
+	y = x * 5;	/* GCC uses 3 instructions for "x *= 21" */
+	x += y << 2;
+	x ^= x >> 11;
+	x += x << 6;
+	x ^= x >> 22;
+
+	if (__builtin_constant_p(bits)) {
+		x = x >> (64 - bits) << (64 - bits);
+	} else {
+		asm("depdi,z -1,%%sar,64,%0" : "=r" (y) : "q" (bits));
+		x &= ~y;
+	}
+
+	return x;
+}
+
+#endif /* HAVE_ARCH_HASH_64 */
+#endif /* BITS_PER_LONG == 64 */
+
+#endif /* _ASM_HASH_H */
-- 
2.8.1

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From - Thu Nov 08 21:38:59 2018
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From: Jesper Nilsson <jesper.nilsson@axis.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH v12 01/15] PCI: Let pci_mmap_page_range() take extra
 resource pointer
Date: Tue, 7 Jun 2016 10:04:30 +0200
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Cc: Bjorn Helgaas <bhelgaas@google.com>,
	David Miller <davem@davemloft.net>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
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To: Yinghai Lu <yinghai@kernel.org>
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On Fri, Jun 03, 2016 at 05:06:28PM -0700, Yinghai Lu wrote:
> This one is preparing patch for next one:
>   PCI: Let pci_mmap_page_range() take resource addr
> 
> We need to pass extra resource pointer to avoid searching that again
> for powerpc and microblaze prot set operation.
> 
> Signed-off-by: Yinghai Lu <yinghai@kernel.org>
> Cc: linux-arm-kernel@lists.infradead.org

For the CRIS part:

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

> diff --git a/arch/cris/arch-v32/drivers/pci/bios.c b/arch/cris/arch-v32/drivers/pci/bios.c
> index 64a5fb9..082efb9 100644
> --- a/arch/cris/arch-v32/drivers/pci/bios.c
> +++ b/arch/cris/arch-v32/drivers/pci/bios.c
> @@ -14,7 +14,8 @@ void pcibios_set_master(struct pci_dev *dev)
>  	pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
>  }
>  
> -int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
> +int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
> +			struct vm_area_struct *vma,
>  			enum pci_mmap_state mmap_state, int write_combine)
>  {
>  	unsigned long prot;
> diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
> index b1b289d..65198cb 100644
> --- a/arch/cris/include/asm/pci.h
> +++ b/arch/cris/include/asm/pci.h
> @@ -42,9 +42,6 @@ struct pci_dev;
>  #define PCI_DMA_BUS_IS_PHYS	(1)
>  
>  #define HAVE_PCI_MMAP
> -extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
> -			       enum pci_mmap_state mmap_state, int write_combine);
> -
>  
>  #endif /* __KERNEL__ */

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com
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Subject: Re: invalid printk time during boot on PA-RISC
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On 06.06.2016 18:51, Mikulas Patocka wrote:
> 
> 
> On Fri, 3 Jun 2016, Helge Deller wrote:
> 
>> * Aaro Koskinen <aaro.koskinen@iki.fi>:
>>> Hi,
>>>
>>> On Wed, Jun 01, 2016 at 11:12:48PM +0200, Helge Deller wrote:
>>>> It fixes the problem mostly for me, there is just one little glitch
>>>> left, which is that the lines "FP[x] enabled" will still print an
>>>> invalid time. I assume it's because when this text is printed, the
>>>> clock/interrupts for the just booted CPU aren't enabled yet.
>>>>
>>>> I'm not sure it's worth trying to fix that. 
>>>> One could print out that info at a later time, or just disabled it.
>>>>
>>>> Helge
>>>>
>>>> [    5.720014] Enabling PDC_PAT chassis codes support v0.05
>>>> [    6.644542] Releasing cpu 1 now, hpa=fffffffffe781000
>>>> [    0.196000] FP[1] enabled: Rev 1 Model 20
>>>> [    7.088432] CPU(s): 2 out of 2 PA8800 (Mako) at 900.000000 MHz online
>>>
>>> Some tools that analyze boot time based on dmesg might get confused.
>>
>> Yes, valid point.
>> Updated patch below.
>>
>> Helge
>>
>> __________
>>
>>
>> parisc: Fix printk time during boot
>>
>> Avoid showing invalid printk time stamps during boot.
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
>> index e81ccf1..5adc339 100644
>> --- a/arch/parisc/kernel/processor.c
>> +++ b/arch/parisc/kernel/processor.c
>> @@ -324,8 +324,9 @@ int init_per_cpu(int cpunum)
>>  		per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
>>  		per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
>>  
>> -		printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
>> -			cpunum, coproc_cfg.revision, coproc_cfg.model);
>> +		if (cpunum == 0)
>> +			printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
>> +				cpunum, coproc_cfg.revision, coproc_cfg.model);
> 
> BTW. you could also remove "[%d] cpunum" from printk --- if cpunum is 
> always 0 here.

Right. But I pushed my patch already upstream.
Maybe in the next round, or we drop this line completely.

Helge

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From: Yinghai Lu <yinghai@kernel.org>
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Subject: [PATCH v12.update 01/15] PCI: Let pci_mmap_page_range() take extra resource pointer
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This one is preparing patch for next one:
  PCI: Let pci_mmap_page_range() take resource addr

We need to pass extra resource pointer to avoid searching that again
for powerpc and microblaze prot set operation.

update for fixing bisectibility problem found by build test robot.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-cris-kernel@axis.com
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-am33-list@redhat.com
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
---
 arch/arm/include/asm/pci.h              | 2 --
 arch/arm/kernel/bios32.c                | 3 ++-
 arch/cris/arch-v32/drivers/pci/bios.c   | 3 ++-
 arch/cris/include/asm/pci.h             | 3 ---
 arch/ia64/include/asm/pci.h             | 2 --
 arch/ia64/pci/pci.c                     | 3 ++-
 arch/microblaze/include/asm/pci.h       | 3 ---
 arch/microblaze/pci/pci-common.c        | 3 ++-
 arch/mips/include/asm/pci.h             | 3 ---
 arch/mips/pci/pci.c                     | 3 ++-
 arch/mn10300/include/asm/pci.h          | 3 ---
 arch/mn10300/unit-asb2305/pci-asb2305.c | 3 ++-
 arch/parisc/include/asm/pci.h           | 3 ---
 arch/parisc/kernel/pci.c                | 3 ++-
 arch/powerpc/include/asm/pci.h          | 3 ---
 arch/powerpc/kernel/pci-common.c        | 3 ++-
 arch/sh/drivers/pci/pci.c               | 3 ++-
 arch/sh/include/asm/pci.h               | 2 --
 arch/sparc/include/asm/pci_64.h         | 4 ----
 arch/sparc/kernel/pci.c                 | 3 ++-
 arch/unicore32/include/asm/pci.h        | 2 --
 arch/unicore32/kernel/pci.c             | 3 ++-
 arch/x86/include/asm/pci.h              | 4 ----
 arch/x86/pci/i386.c                     | 3 ++-
 arch/xtensa/include/asm/pci.h           | 4 ----
 arch/xtensa/kernel/pci.c                | 3 ++-
 drivers/pci/pci-sysfs.c                 | 2 +-
 drivers/pci/proc.c                      | 2 +-
 include/linux/pci.h                     | 6 ++++++
 29 files changed, 34 insertions(+), 53 deletions(-)

diff --git a/arch/arm/include/asm/pci.h b/arch/arm/include/asm/pci.h
index 057d381..51118a0 100644
--- a/arch/arm/include/asm/pci.h
+++ b/arch/arm/include/asm/pci.h
@@ -29,8 +29,6 @@ static inline int pci_proc_domain(struct pci_bus *bus)
 #define PCI_DMA_BUS_IS_PHYS     (1)
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-                               enum pci_mmap_state mmap_state, int write_combine);
 
 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 {
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index 05e61a2..d3245d1 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -602,7 +602,8 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 	return pci_enable_resources(dev, mask);
 }
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	if (mmap_state == pci_mmap_io)
diff --git a/arch/cris/arch-v32/drivers/pci/bios.c b/arch/cris/arch-v32/drivers/pci/bios.c
index 64a5fb9..082efb9 100644
--- a/arch/cris/arch-v32/drivers/pci/bios.c
+++ b/arch/cris/arch-v32/drivers/pci/bios.c
@@ -14,7 +14,8 @@ void pcibios_set_master(struct pci_dev *dev)
 	pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
 }
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long prot;
diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
index b1b289d..65198cb 100644
--- a/arch/cris/include/asm/pci.h
+++ b/arch/cris/include/asm/pci.h
@@ -42,9 +42,6 @@ struct pci_dev;
 #define PCI_DMA_BUS_IS_PHYS	(1)
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-			       enum pci_mmap_state mmap_state, int write_combine);
-
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index c0835b0..6a2f5d8 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -51,8 +51,6 @@ extern unsigned long ia64_max_iommu_merge_mask;
 #define PCI_DMA_BUS_IS_PHYS	(ia64_max_iommu_merge_mask == ~0UL)
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma,
-				enum pci_mmap_state mmap_state, int write_combine);
 #define HAVE_PCI_LEGACY
 extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
 				      struct vm_area_struct *vma,
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 8f6ac2f..1518d66 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -419,7 +419,8 @@ pcibios_align_resource (void *data, const struct resource *res,
 }
 
 int
-pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma,
+pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+		     struct vm_area_struct *vma,
 		     enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long size = vma->vm_end - vma->vm_start;
diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h
index fc3ecb5..1b93824 100644
--- a/arch/microblaze/include/asm/pci.h
+++ b/arch/microblaze/include/asm/pci.h
@@ -46,9 +46,6 @@ extern int pci_domain_nr(struct pci_bus *bus);
 extern int pci_proc_domain(struct pci_bus *bus);
 
 struct vm_area_struct;
-/* Map a range of PCI memory or I/O space for a device into user space */
-int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
-			enum pci_mmap_state mmap_state, int write_combine);
 
 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
 #define HAVE_PCI_MMAP	1
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 14cba60..fd2b013 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -304,7 +304,8 @@ pgprot_t pci_phys_mem_access_prot(struct file *file,
  *
  * Returns a negative error code on failure, zero on success.
  */
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	resource_size_t offset =
diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h
index 86b239d..71d2c3b 100644
--- a/arch/mips/include/asm/pci.h
+++ b/arch/mips/include/asm/pci.h
@@ -75,9 +75,6 @@ extern void pcibios_set_master(struct pci_dev *dev);
 
 #define HAVE_PCI_MMAP
 
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-	enum pci_mmap_state mmap_state, int write_combine);
-
 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
 
 static inline void pci_resource_to_user(const struct pci_dev *dev, int bar,
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index f1b11f0..e620333 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -319,7 +319,8 @@ void pcibios_fixup_bus(struct pci_bus *bus)
 EXPORT_SYMBOL(PCIBIOS_MIN_IO);
 EXPORT_SYMBOL(PCIBIOS_MIN_MEM);
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long prot;
diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index 51159ff..082b6de 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -74,9 +74,6 @@ static inline int pci_controller_num(struct pci_dev *dev)
 }
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-			       enum pci_mmap_state mmap_state,
-			       int write_combine);
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.c b/arch/mn10300/unit-asb2305/pci-asb2305.c
index b7ab837..40efdc6 100644
--- a/arch/mn10300/unit-asb2305/pci-asb2305.c
+++ b/arch/mn10300/unit-asb2305/pci-asb2305.c
@@ -211,7 +211,8 @@ void __init pcibios_resource_survey(void)
 	pcibios_allocate_resources(1);
 }
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long prot;
diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index defebd9..bb9ea90 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -201,7 +201,4 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 
 #define HAVE_PCI_MMAP
 
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-	enum pci_mmap_state mmap_state, int write_combine);
-
 #endif /* __ASM_PARISC_PCI_H */
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 0903c6a..8d5c34c 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -228,7 +228,8 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
 }
 
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long prot;
diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index a6f3ac0..662c1ef 100644
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -77,9 +77,6 @@ extern int pci_domain_nr(struct pci_bus *bus);
 extern int pci_proc_domain(struct pci_bus *bus);
 
 struct vm_area_struct;
-/* Map a range of PCI memory or I/O space for a device into user space */
-int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
-			enum pci_mmap_state mmap_state, int write_combine);
 
 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
 #define HAVE_PCI_MMAP	1
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 0f7a60f..1596362 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -445,7 +445,8 @@ pgprot_t pci_phys_mem_access_prot(struct file *file,
  *
  * Returns a negative error code on failure, zero on success.
  */
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	resource_size_t offset =
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index d5462b7..a1bc7ba 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -269,7 +269,8 @@ void __init_refok pcibios_report_status(unsigned int status_mask, int warn)
 	}
 }
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	/*
diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h
index 644314f..8e0fdb9 100644
--- a/arch/sh/include/asm/pci.h
+++ b/arch/sh/include/asm/pci.h
@@ -66,8 +66,6 @@ extern unsigned long PCIBIOS_MIN_IO, PCIBIOS_MIN_MEM;
 struct pci_dev;
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-	enum pci_mmap_state mmap_state, int write_combine);
 extern void pcibios_set_master(struct pci_dev *dev);
 
 /* Dynamic DMA mapping stuff.
diff --git a/arch/sparc/include/asm/pci_64.h b/arch/sparc/include/asm/pci_64.h
index 022d160..f7a93df 100644
--- a/arch/sparc/include/asm/pci_64.h
+++ b/arch/sparc/include/asm/pci_64.h
@@ -45,10 +45,6 @@ static inline int pci_proc_domain(struct pci_bus *bus)
 #define HAVE_ARCH_PCI_GET_UNMAPPED_AREA
 #define get_pci_unmapped_area get_fb_unmapped_area
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-			enum pci_mmap_state mmap_state,
-			int write_combine);
-
 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 {
 	return PCI_IRQ_NONE;
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index c2b202d..86d7dda 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -862,7 +862,8 @@ static void __pci_mmap_set_pgprot(struct pci_dev *dev, struct vm_area_struct *vm
  *
  * Returns a negative error code on failure, zero on success.
  */
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state,
 			int write_combine)
 {
diff --git a/arch/unicore32/include/asm/pci.h b/arch/unicore32/include/asm/pci.h
index 37e55d0..a5129086 100644
--- a/arch/unicore32/include/asm/pci.h
+++ b/arch/unicore32/include/asm/pci.h
@@ -17,8 +17,6 @@
 #include <mach/hardware.h> /* for PCIBIOS_MIN_* */
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-	enum pci_mmap_state mmap_state, int write_combine);
 
 #endif /* __KERNEL__ */
 #endif
diff --git a/arch/unicore32/kernel/pci.c b/arch/unicore32/kernel/pci.c
index d45fa5f..ff1b7ef 100644
--- a/arch/unicore32/kernel/pci.c
+++ b/arch/unicore32/kernel/pci.c
@@ -362,7 +362,8 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 	return 0;
 }
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long phys;
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 9ab7507..eb87481 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -88,10 +88,6 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
 
 
 #define HAVE_PCI_MMAP
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-			       enum pci_mmap_state mmap_state,
-			       int write_combine);
-
 
 #ifdef CONFIG_PCI
 extern void early_quirks(void);
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 0a9f2ca..36463c7 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -411,7 +411,8 @@ static const struct vm_operations_struct pci_mmap_ops = {
 	.access = generic_access_phys,
 };
 
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state, int write_combine)
 {
 	unsigned long prot;
diff --git a/arch/xtensa/include/asm/pci.h b/arch/xtensa/include/asm/pci.h
index 5d6bd93..bb5510b 100644
--- a/arch/xtensa/include/asm/pci.h
+++ b/arch/xtensa/include/asm/pci.h
@@ -46,10 +46,6 @@ struct pci_dev;
 
 #define PCI_DMA_BUS_IS_PHYS	(1)
 
-/* Map a range of PCI memory or I/O space for a device into user space */
-int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
-			enum pci_mmap_state mmap_state, int write_combine);
-
 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
 #define HAVE_PCI_MMAP	1
 
diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c
index b848cc3..89c8687 100644
--- a/arch/xtensa/kernel/pci.c
+++ b/arch/xtensa/kernel/pci.c
@@ -362,7 +362,8 @@ __pci_mmap_set_pgprot(struct pci_dev *dev, struct vm_area_struct *vma,
  *
  * Returns a negative error code on failure, zero on success.
  */
-int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
 			enum pci_mmap_state mmap_state,
 			int write_combine)
 {
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index d319a9c..5bbe20c 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -1027,7 +1027,7 @@ static int pci_mmap_resource(struct kobject *kobj, struct bin_attribute *attr,
 	pci_resource_to_user(pdev, i, res, &start, &end);
 	vma->vm_pgoff += start >> PAGE_SHIFT;
 	mmap_type = res->flags & IORESOURCE_MEM ? pci_mmap_mem : pci_mmap_io;
-	return pci_mmap_page_range(pdev, vma, mmap_type, write_combine);
+	return pci_mmap_page_range(pdev, res, vma, mmap_type, write_combine);
 }
 
 static int pci_mmap_resource_uc(struct file *filp, struct kobject *kobj,
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 3f155e7..f19ee2a 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -245,7 +245,7 @@ static int proc_bus_pci_mmap(struct file *file, struct vm_area_struct *vma)
 	if (i >= PCI_ROM_RESOURCE)
 		return -ENODEV;
 
-	ret = pci_mmap_page_range(dev, vma,
+	ret = pci_mmap_page_range(dev, &dev->resource[i], vma,
 				  fpriv->mmap_state,
 				  fpriv->write_combine);
 	if (ret < 0)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index b67e4df..3c1a0f4 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -70,6 +70,12 @@ enum pci_mmap_state {
 	pci_mmap_mem
 };
 
+struct vm_area_struct;
+/* Map a range of PCI memory or I/O space for a device into user space */
+int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
+			struct vm_area_struct *vma,
+			enum pci_mmap_state mmap_state, int write_combine);
+
 /*
  *  For PCI devices, the region numbers are assigned this way:
  */
-- 
2.8.3




From - Thu Nov 08 21:38:59 2018
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Subject: [PATCH v4] parisc: add <asm/hash.h>
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PA-RISC is interesting; integer multiplies are implemented in the
FPU, so are painful in the kernel.  But it tries to be friendly to
shift-and-add sequences for constant multiplies.

__hash_32 is implemented using the same shift-and-add sequence as
Microblaze, just scheduled for the PA7100.  (It's 2-way superscalar
but in-order, like the Pentium.)

hash_64 was tricky, but a suggestion from Jason Thong allowed a
good solution by breaking up the multiplier.  After a lot of manual
optimization, I found a 19-instruction sequence for the multiply that
can be executed in 10 cycles using only 4 temporaries.

(The PA8xxx can issue 4 instructions per cycle, but 2 must be ALU ops
and 2 must be loads/stores.  And the final add can't be paired.)

An alternative considered, but ultimately not used, was Thomas Wang's
64-to-32-bit integer hash.  At 12 instructions, it's smaller, but they're
all sequentially dependent, so it has longer latency.

https://web.archive.org/web/2011/http://www.concentric.net/~Ttwang/tech/inthash.htm
http://burtleburtle.net/bob/hash/integer.html

Signed-off-by: George Spelvin <linux@sciencehorizons.net>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
No functional change, just cleaned up a lot.  This is final if no problems
are found.

 arch/parisc/Kconfig            |   1 +
 arch/parisc/include/asm/hash.h | 146 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 147 insertions(+)
 create mode 100644 arch/parisc/include/asm/hash.h

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 88cfaa8a..8ed2a444 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -30,6 +30,7 @@ config PARISC
 	select TTY # Needed for pdc_cons.c
 	select HAVE_DEBUG_STACKOVERFLOW
 	select HAVE_ARCH_AUDITSYSCALL
+	select HAVE_ARCH_HASH
 	select HAVE_ARCH_SECCOMP_FILTER
 	select ARCH_NO_COHERENT_DMA_MMAP
 
diff --git a/arch/parisc/include/asm/hash.h b/arch/parisc/include/asm/hash.h
new file mode 100644
index 00000000..fb992a3b
--- /dev/null
+++ b/arch/parisc/include/asm/hash.h
@@ -0,0 +1,146 @@
+#ifndef _ASM_HASH_H
+#define _ASM_HASH_H
+
+/*
+ * HP-PA only implements integer multiply in the FPU.  However, for
+ * integer multiplies by constant, it has a number of shift-and-add
+ * (but no shift-and-subtract, sigh!) instructions that a compiler
+ * can synthesize a code sequence with.
+ *
+ * Unfortunately, GCC isn't very efficient at using them.  For example
+ * it uses three instructions for "x *= 21" when only two are needed.
+ * But we can find a sequence manually.
+ */
+
+#define HAVE_ARCH__HASH_32 1
+
+/*
+ * This is a multiply by GOLDEN_RATIO_32 = 0x61C88647 optimized for the
+ * PA7100 pairing rules.  This is an in-order 2-way superscalar processor.
+ * Only one instruction in a pair may be a shift (by more than 3 bits),
+ * but other than that, simple ALU ops (including shift-and-add by up
+ * to 3 bits) may be paired arbitrarily.
+ *
+ * PA8xxx processors also dual-issue ALU instructions, although with
+ * fewer constraints, so this schedule is good for them, too.
+ *
+ * This 6-step sequence was found by Yevgen Voronenko's implementation
+ * of the Hcub algorithm at http://spiral.ece.cmu.edu/mcm/gen.html.
+ */
+static inline u32 __attribute_const__ __hash_32(u32 x)
+{
+	u32 a, b, c;
+
+	/*
+	 * Phase 1: Compute  a = (x << 19) + x,
+	 * b = (x << 9) + a, c = (x << 23) + b.
+	 */
+	a = x << 19;		/* Two shifts can't be paired */
+	b = x << 9;	a += x;
+	c = x << 23;	b += a;
+			c += b;
+	/* Phase 2: Return (b<<11) + (c<<6) + (a<<3) - c */
+	b <<= 11;
+	a += c << 3;	b -= c;
+	return (a << 3) + b;
+}
+
+#if BITS_PER_LONG == 64
+
+#define HAVE_ARCH_HASH_64 1
+
+/*
+ * Finding a good shift-and-add chain for GOLDEN_RATIO_64 is tricky,
+ * because available software for the purpose chokes on constants this
+ * large.  (It's mostly designed for compiling FIR filter coefficients
+ * into FPGAs.)
+ *
+ * However, Jason Thong pointed out a work-around.  The Hcub software
+ * (http://spiral.ece.cmu.edu/mcm/gen.html) is designed for *multiple*
+ * constant multiplication, and is good at finding shift-and-add chains
+ * which share common terms.
+ *
+ * Looking at 0x0x61C8864680B583EB in binary:
+ * 0110000111001000100001100100011010000000101101011000001111101011
+ *  \______________/    \__________/       \_______/     \________/
+ *   \____________________________/         \____________________/
+ * you can see the non-zero bits are divided into several well-separated
+ * blocks.  Hcub can find algorithms for those terms separately, which
+ * can then be shifted and added together.
+ *
+ * Dividing the input into 2, 3 or 4 blocks, Hcub can find solutions
+ * with 10, 9 or 8 adds, respectively, making a total of 11 for the
+ * whole number.
+ *
+ * Using just two large blocks, 0xC3910C8D << 31 in the high bits,
+ * and 0xB583EB in the low bits, produces as good an algorithm as any,
+ * and with one more small shift than alternatives.
+ *
+ * The high bits are a larger number and more work to compute, as well
+ * as needing one extra cycle to shift left 31 bits before the final
+ * addition, so they are the critical path for scheduling.  The low bits
+ * can fit into the scheduling slots left over.
+ */
+
+
+/*
+ * This _ASSIGN(dst, src) macro performs "dst = src", but prevents GCC
+ * from inferring anything about the value assigned to "dest".
+ *
+ * This prevents it from mis-optimizing certain sequences.
+ * In particular, gcc is annoyingly eager to combine consecutive shifts.
+ * Given "x <<= 19; y += x; z += x << 1;", GCC will turn this into
+ * "y += x << 19; z += x << 20;" even though the latter sequence needs
+ * an additional instruction and temporary register.
+ *
+ * Because no actual assembly code is generated, this construct is
+ * usefully portable across all GCC platforms, and so can be test-compiled
+ * on non-PA systems.
+ *
+ * In two places, additional unused input dependencies are added.  This
+ * forces GCC's scheduling so it does not rearrange instructions too much.
+ * Because the PA-8xxx is out of order, I'm not sure how much this matters,
+ * but why make it more difficult for the processor than necessary?
+ */
+#define _ASSIGN(dst, src, ...) asm("" : "=r" (dst) : "0" (src), ##__VA_ARGS__)
+
+/*
+ * Multiply by GOLDEN_RATIO_64 = 0x0x61C8864680B583EB using a heavily
+ * optimized shift-and-add sequence.
+ *
+ * Without the final shift, the multiply proper is 19 instructions,
+ * 10 cycles and uses only 4 temporaries.  Whew!
+ *
+ * You are not expected to understand this.
+ */
+static __always_inline u32 __attribute_const__
+hash_64(u64 a, unsigned int bits)
+{
+	u64 b, c, d;
+
+	/*
+	 * Encourage GCC to move a dynamic shift to %sar early,
+	 * thereby freeing up an additional temporary register.
+	 */
+	if (!__builtin_constant_p(bits))
+		asm("" : "=q" (bits) : "0" (64 - bits));
+	else
+		bits = 64 - bits;
+
+	_ASSIGN(b, a*5);	c = a << 13;
+	b = (b << 2) + a;	_ASSIGN(d, a << 17);
+	a = b + (a << 1);	c += d;
+	d = a << 10;		_ASSIGN(a, a << 19);
+	d = a - d;		_ASSIGN(a, a << 4, "X" (d));
+	c += b;			a += b;
+	d -= c;			c += a << 1;
+	a += c << 3;		_ASSIGN(b, b << 7+31, "X" (c), "X" (d));
+	a <<= 31;		b += d;
+	a += b;
+	return a >> bits;
+}
+#undef _ASSIGN	/* We're a widely-used header file, so don't litter! */
+
+#endif /* BITS_PER_LONG == 64 */
+
+#endif /* _ASM_HASH_H */
-- 
2.8.1

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From - Thu Nov 08 21:38:59 2018
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X-Mozilla-Keys:                                                                                 
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From: Bjorn Helgaas <helgaas@kernel.org>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH v12 01/15] PCI: Let pci_mmap_page_range() take extra
 resource pointer
Date: Wed, 8 Jun 2016 16:03:22 -0500
Lines: 208
Approved: news@gmane.org
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References: <20160604000642.28162-1-yinghai@kernel.org>
 <20160604000642.28162-2-yinghai@kernel.org>
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Cc: Bjorn Helgaas <bhelgaas@google.com>,
	David Miller <davem@davemloft.net>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Wei Yang <weiyang@linux.vnet.ibm.com>,
	Khalid Aziz <khalid.aziz@oracle.com>,
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To: Yinghai Lu <yinghai@kernel.org>
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On Fri, Jun 03, 2016 at 05:06:28PM -0700, Yinghai Lu wrote:
> This one is preparing patch for next one:
>   PCI: Let pci_mmap_page_range() take resource addr
> 
> We need to pass extra resource pointer to avoid searching that again
> for powerpc and microblaze prot set operation.

I'm not convinced yet that the extra resource pointer is necessary.

Microblaze does look up the resource in pci_mmap_page_range(), but it
never actually uses it.  It *looks* like it uses it, but that code is
actually dead and I think we should apply the first patch below.

That leaves powerpc as the only arch that would use this extra
resource pointer.  It uses it in __pci_mmap_set_pgprot() to help
decide whether to make a normal uncacheable mapping or a write-
combining one.  There's nothing here that's specific to the powerpc
architecture, and I don't think we should add this parameter just to
cater to powerpc.

There are two cases where __pci_mmap_set_pgprot() on powerpc does
something based on the resource:

  1) We're using procfs to mmap I/O port space after we requested
     write-combining, e.g., we did this:

       ioctl(fd, PCIIOC_MMAP_IS_IO);           # request I/O port space
       ioctl(fd, PCIIOC_WRITE_COMBINE, 1);     # request write-combining
       mmap(fd, ...)

     On powerpc, we ignore the write-combining request in this case.

     I think we can handle this case by applying the second patch
     below to ignore write-combining on I/O space for all arches, not
     just powerpc.

  2) We're using sysfs to mmap resourceN (not resourceN_wc), and
     the resource is prefetchable.  On powerpc, we turn *on*
     write-combining, even though the user didn't ask for it.

     I'm not sure this case is actually safe, because it changes the
     ordering properties.  If it *is* safe, we could enable write-
     combining in pci_mmap_resource(), where we already have the
     resource and it could be done for all arches.

     This case is not strictly necessary, except to avoid a
     performance regression, because the user could have mapped
     resourceN_wc to explicitly request write-combining.

> diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
> index d319a9c..5bbe20c 100644
> --- a/drivers/pci/pci-sysfs.c
> +++ b/drivers/pci/pci-sysfs.c
> @@ -1027,7 +1027,7 @@ static int pci_mmap_resource(struct kobject *kobj, struct bin_attribute *attr,
>  	pci_resource_to_user(pdev, i, res, &start, &end);
>  	vma->vm_pgoff += start >> PAGE_SHIFT;
>  	mmap_type = res->flags & IORESOURCE_MEM ? pci_mmap_mem : pci_mmap_io;
> -	return pci_mmap_page_range(pdev, vma, mmap_type, write_combine);
> +	return pci_mmap_page_range(pdev, res, vma, mmap_type, write_combine);
>  }
>  
>  static int pci_mmap_resource_uc(struct file *filp, struct kobject *kobj,
> diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
> index 3f155e7..f19ee2a 100644
> --- a/drivers/pci/proc.c
> +++ b/drivers/pci/proc.c
> @@ -245,7 +245,7 @@ static int proc_bus_pci_mmap(struct file *file, struct vm_area_struct *vma)
>  	if (i >= PCI_ROM_RESOURCE)
>  		return -ENODEV;
>  
> -	ret = pci_mmap_page_range(dev, vma,
> +	ret = pci_mmap_page_range(dev, &dev->resource[i], vma,
>  				  fpriv->mmap_state,
>  				  fpriv->write_combine);
>  	if (ret < 0)
> diff --git a/include/linux/pci.h b/include/linux/pci.h
> index b67e4df..3c1a0f4 100644
> --- a/include/linux/pci.h
> +++ b/include/linux/pci.h
> @@ -70,6 +70,12 @@ enum pci_mmap_state {
>  	pci_mmap_mem
>  };
>  
> +struct vm_area_struct;
> +/* Map a range of PCI memory or I/O space for a device into user space */
> +int pci_mmap_page_range(struct pci_dev *dev, struct resource *res,
> +			struct vm_area_struct *vma,
> +			enum pci_mmap_state mmap_state, int write_combine);
> +
>  /*
>   *  For PCI devices, the region numbers are assigned this way:
>   */


commit 4e712b691abc5b579e3e4327f56b0b7988bdd1cb
Author: Bjorn Helgaas <bhelgaas@google.com>
Date:   Wed Jun 8 14:00:14 2016 -0500

    microblaze/PCI: Remove useless __pci_mmap_set_pgprot()
    
    The microblaze __pci_mmap_set_pgprot() was apparently copied from powerpc,
    where it computes either an uncacheable pgprot_t or a write-combining one.
    But on microblaze, we always use the regular uncacheable pgprot_t.
    
    Remove the useless code in __pci_mmap_set_pgprot() and inline the
    pgprot_noncached() at the only caller.
    
    Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 14cba60..1974567 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -219,33 +219,6 @@ static struct resource *__pci_mmap_make_offset(struct pci_dev *dev,
 }
 
 /*
- * Set vm_page_prot of VMA, as appropriate for this architecture, for a pci
- * device mapping.
- */
-static pgprot_t __pci_mmap_set_pgprot(struct pci_dev *dev, struct resource *rp,
-				      pgprot_t protection,
-				      enum pci_mmap_state mmap_state,
-				      int write_combine)
-{
-	pgprot_t prot = protection;
-
-	/* Write combine is always 0 on non-memory space mappings. On
-	 * memory space, if the user didn't pass 1, we check for a
-	 * "prefetchable" resource. This is a bit hackish, but we use
-	 * this to workaround the inability of /sysfs to provide a write
-	 * combine bit
-	 */
-	if (mmap_state != pci_mmap_mem)
-		write_combine = 0;
-	else if (write_combine == 0) {
-		if (rp->flags & IORESOURCE_PREFETCH)
-			write_combine = 1;
-	}
-
-	return pgprot_noncached(prot);
-}
-
-/*
  * This one is used by /dev/mem and fbdev who have no clue about the
  * PCI device, it tries to find the PCI device first and calls the
  * above routine
@@ -317,9 +290,7 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
 		return -EINVAL;
 
 	vma->vm_pgoff = offset >> PAGE_SHIFT;
-	vma->vm_page_prot = __pci_mmap_set_pgprot(dev, rp,
-						  vma->vm_page_prot,
-						  mmap_state, write_combine);
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
 	ret = remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
 			       vma->vm_end - vma->vm_start, vma->vm_page_prot);



commit 962972ee5e0ba6ceb680cb182bad65f8886586a6
Author: Bjorn Helgaas <bhelgaas@google.com>
Date:   Wed Jun 8 14:46:54 2016 -0500

    PCI: Ignore write-combining when mapping I/O port space
    
    PCI exposes files like /proc/bus/pci/00/00.0 in procfs.  These files
    support operations like this:
    
      ioctl(fd, PCIIOC_MMAP_IS_IO);           # request I/O port space
      ioctl(fd, PCIIOC_WRITE_COMBINE, 1);     # request write-combining
      mmap(fd, ...)
    
    Many architectures don't allow mmap of I/O port space at all, but I don't
    think it makes sense to do a write-combining mapping on the ones that do.
    We could change proc_bus_pci_ioctl() so the user could never enable write-
    combining for I/O port space, but that would break the following sequence,
    which is currently legal:
    
      mmap(fd, ...)                           # default is I/O, non-combining
      ioctl(fd, PCIIOC_WRITE_COMBINE, 1);     # request write-combining
      ioctl(fd, PCIIOC_MMAP_IS_MEM);          # request memory space
      mmap(fd, ...)
    
    Ignore the write-combining flag when mapping I/O port space.
    
    Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 3f155e7..21f8d613 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -247,7 +247,8 @@ static int proc_bus_pci_mmap(struct file *file, struct vm_area_struct *vma)
 
 	ret = pci_mmap_page_range(dev, vma,
 				  fpriv->mmap_state,
-				  fpriv->write_combine);
+				  (fpriv->mmap_state == pci_mmap_mem) ?
+					fpriv->write_combine : 0);
 	if (ret < 0)
 		return ret;
 
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From - Thu Nov 08 21:39:00 2018
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From: Stephan Linz <linz@li-pro.net>
Newsgroups: gmane.linux.leds,gmane.linux.ide,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v3 6/7] parisc: use the new LED disk activity trigger
Date: Thu,  9 Jun 2016 00:29:41 +0200
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- platform: rename 'ide-disk' to 'disk-activity'

Signed-off-by: Stephan Linz <linz@li-pro.net>
---
 arch/parisc/configs/generic-32bit_defconfig | 2 +-
 arch/parisc/configs/generic-64bit_defconfig | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig
index 5b04d70..8688ba7 100644
--- a/arch/parisc/configs/generic-32bit_defconfig
+++ b/arch/parisc/configs/generic-32bit_defconfig
@@ -214,7 +214,7 @@ CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_TRIGGERS=y
 CONFIG_LEDS_TRIGGER_TIMER=y
-CONFIG_LEDS_TRIGGER_IDE_DISK=y
+CONFIG_LEDS_TRIGGER_DISK=y
 CONFIG_LEDS_TRIGGER_HEARTBEAT=y
 CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
 CONFIG_DMADEVICES=y
diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig
index e945c08..7e07926 100644
--- a/arch/parisc/configs/generic-64bit_defconfig
+++ b/arch/parisc/configs/generic-64bit_defconfig
@@ -231,7 +231,7 @@ CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_TRIGGERS=y
 CONFIG_LEDS_TRIGGER_TIMER=y
 CONFIG_LEDS_TRIGGER_ONESHOT=y
-CONFIG_LEDS_TRIGGER_IDE_DISK=y
+CONFIG_LEDS_TRIGGER_DISK=y
 CONFIG_LEDS_TRIGGER_HEARTBEAT=m
 CONFIG_LEDS_TRIGGER_BACKLIGHT=m
 CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
-- 
2.8.4


From - Thu Nov 08 21:39:00 2018
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X-Mozilla-Keys:                                                                                 
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From: Yinghai Lu <yinghai@kernel.org>
Newsgroups: gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH v12 01/15] PCI: Let pci_mmap_page_range() take extra
 resource pointer
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Cc: Bjorn Helgaas <bhelgaas@google.com>,
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To: Bjorn Helgaas <helgaas@kernel.org>
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On Wed, Jun 8, 2016 at 2:03 PM, Bjorn Helgaas <helgaas@kernel.org> wrote:
>
> Microblaze does look up the resource in pci_mmap_page_range(), but it
> never actually uses it.  It *looks* like it uses it, but that code is
> actually dead and I think we should apply the first patch below.

Good one.

>
> That leaves powerpc as the only arch that would use this extra
> resource pointer.  It uses it in __pci_mmap_set_pgprot() to help
> decide whether to make a normal uncacheable mapping or a write-
> combining one.  There's nothing here that's specific to the powerpc
> architecture, and I don't think we should add this parameter just to
> cater to powerpc.
>
> There are two cases where __pci_mmap_set_pgprot() on powerpc does
> something based on the resource:
>
>   1) We're using procfs to mmap I/O port space after we requested
>      write-combining, e.g., we did this:
>
>        ioctl(fd, PCIIOC_MMAP_IS_IO);           # request I/O port space
>        ioctl(fd, PCIIOC_WRITE_COMBINE, 1);     # request write-combining
>        mmap(fd, ...)
>
>      On powerpc, we ignore the write-combining request in this case.
>
>      I think we can handle this case by applying the second patch
>      below to ignore write-combining on I/O space for all arches, not
>      just powerpc.
>
>   2) We're using sysfs to mmap resourceN (not resourceN_wc), and
>      the resource is prefetchable.  On powerpc, we turn *on*
>      write-combining, even though the user didn't ask for it.
>
>      I'm not sure this case is actually safe, because it changes the
>      ordering properties.  If it *is* safe, we could enable write-
>      combining in pci_mmap_resource(), where we already have the
>      resource and it could be done for all arches.
>
>      This case is not strictly necessary, except to avoid a
>      performance regression, because the user could have mapped
>      resourceN_wc to explicitly request write-combining.
>

Agreed.

>
> commit 4e712b691abc5b579e3e4327f56b0b7988bdd1cb
> Author: Bjorn Helgaas <bhelgaas@google.com>
> Date:   Wed Jun 8 14:00:14 2016 -0500
>
>     microblaze/PCI: Remove useless __pci_mmap_set_pgprot()
>
>     The microblaze __pci_mmap_set_pgprot() was apparently copied from powerpc,
>     where it computes either an uncacheable pgprot_t or a write-combining one.
>     But on microblaze, we always use the regular uncacheable pgprot_t.
>
>     Remove the useless code in __pci_mmap_set_pgprot() and inline the
>     pgprot_noncached() at the only caller.
>
>     Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
>
> diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
> index 14cba60..1974567 100644
> --- a/arch/microblaze/pci/pci-common.c
> +++ b/arch/microblaze/pci/pci-common.c
> @@ -219,33 +219,6 @@ static struct resource *__pci_mmap_make_offset(struct pci_dev *dev,
>  }
>
>  /*
> - * Set vm_page_prot of VMA, as appropriate for this architecture, for a pci
> - * device mapping.
> - */
> -static pgprot_t __pci_mmap_set_pgprot(struct pci_dev *dev, struct resource *rp,
> -                                     pgprot_t protection,
> -                                     enum pci_mmap_state mmap_state,
> -                                     int write_combine)
> -{
> -       pgprot_t prot = protection;
> -
> -       /* Write combine is always 0 on non-memory space mappings. On
> -        * memory space, if the user didn't pass 1, we check for a
> -        * "prefetchable" resource. This is a bit hackish, but we use
> -        * this to workaround the inability of /sysfs to provide a write
> -        * combine bit
> -        */
> -       if (mmap_state != pci_mmap_mem)
> -               write_combine = 0;
> -       else if (write_combine == 0) {
> -               if (rp->flags & IORESOURCE_PREFETCH)
> -                       write_combine = 1;
> -       }
> -
> -       return pgprot_noncached(prot);
> -}
> -
> -/*
>   * This one is used by /dev/mem and fbdev who have no clue about the
>   * PCI device, it tries to find the PCI device first and calls the
>   * above routine
> @@ -317,9 +290,7 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
>                 return -EINVAL;
>
>         vma->vm_pgoff = offset >> PAGE_SHIFT;
> -       vma->vm_page_prot = __pci_mmap_set_pgprot(dev, rp,
> -                                                 vma->vm_page_prot,
> -                                                 mmap_state, write_combine);
> +       vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
>
>         ret = remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
>                                vma->vm_end - vma->vm_start, vma->vm_page_prot);
>

Acked-by: Yinghai Lu <yinghai@kernel.org>

>
>
> commit 962972ee5e0ba6ceb680cb182bad65f8886586a6
> Author: Bjorn Helgaas <bhelgaas@google.com>
> Date:   Wed Jun 8 14:46:54 2016 -0500
>
>     PCI: Ignore write-combining when mapping I/O port space
>
>     PCI exposes files like /proc/bus/pci/00/00.0 in procfs.  These files
>     support operations like this:
>
>       ioctl(fd, PCIIOC_MMAP_IS_IO);           # request I/O port space
>       ioctl(fd, PCIIOC_WRITE_COMBINE, 1);     # request write-combining
>       mmap(fd, ...)
>
>     Many architectures don't allow mmap of I/O port space at all, but I don't
>     think it makes sense to do a write-combining mapping on the ones that do.
>     We could change proc_bus_pci_ioctl() so the user could never enable write-
>     combining for I/O port space, but that would break the following sequence,
>     which is currently legal:
>
>       mmap(fd, ...)                           # default is I/O, non-combining
>       ioctl(fd, PCIIOC_WRITE_COMBINE, 1);     # request write-combining
>       ioctl(fd, PCIIOC_MMAP_IS_MEM);          # request memory space
>       mmap(fd, ...)
>
>     Ignore the write-combining flag when mapping I/O port space.
>
>     Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
>
> diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
> index 3f155e7..21f8d613 100644
> --- a/drivers/pci/proc.c
> +++ b/drivers/pci/proc.c
> @@ -247,7 +247,8 @@ static int proc_bus_pci_mmap(struct file *file, struct vm_area_struct *vma)
>
>         ret = pci_mmap_page_range(dev, vma,
>                                   fpriv->mmap_state,
> -                                 fpriv->write_combine);
> +                                 (fpriv->mmap_state == pci_mmap_mem) ?
> +                                       fpriv->write_combine : 0);
>         if (ret < 0)
>                 return ret;
>

ok to me.

At the same time, can you kill __pci_mmap_set_pgprot() for powerpc.

diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 0f7a60f..0d0148d 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -356,36 +356,6 @@ static struct resource
*__pci_mmap_make_offset(struct pci_dev *dev,
 }

 /*
- * Set vm_page_prot of VMA, as appropriate for this architecture, for a pci
- * device mapping.
- */
-static pgprot_t __pci_mmap_set_pgprot(struct pci_dev *dev, struct resource *rp,
-                      pgprot_t protection,
-                      enum pci_mmap_state mmap_state,
-                      int write_combine)
-{
-
-    /* Write combine is always 0 on non-memory space mappings. On
-     * memory space, if the user didn't pass 1, we check for a
-     * "prefetchable" resource. This is a bit hackish, but we use
-     * this to workaround the inability of /sysfs to provide a write
-     * combine bit
-     */
-    if (mmap_state != pci_mmap_mem)
-        write_combine = 0;
-    else if (write_combine == 0) {
-        if (rp->flags & IORESOURCE_PREFETCH)
-            write_combine = 1;
-    }
-
-    /* XXX would be nice to have a way to ask for write-through */
-    if (write_combine)
-        return pgprot_noncached_wc(protection);
-    else
-        return pgprot_noncached(protection);
-}
-
-/*
  * This one is used by /dev/mem and fbdev who have no clue about the
  * PCI device, it tries to find the PCI device first and calls the
  * above routine
@@ -458,9 +428,10 @@ int pci_mmap_page_range(struct pci_dev *dev,
struct vm_area_struct *vma,
         return -EINVAL;

     vma->vm_pgoff = offset >> PAGE_SHIFT;
-    vma->vm_page_prot = __pci_mmap_set_pgprot(dev, rp,
-                          vma->vm_page_prot,
-                          mmap_state, write_combine);
+    if (write_combine)
+        vma->vm_page_prot = pgprot_noncached_wc(protection);
+    else
+        vma->vm_page_prot = pgprot_noncached(protection);

     ret = remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
                    vma->vm_end - vma->vm_start, vma->vm_page_prot);

From - Thu Nov 08 21:39:00 2018
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From: Yinghai Lu <yinghai@kernel.org>
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Subject: Re: [PATCH v12 01/15] PCI: Let pci_mmap_page_range() take extra
 resource pointer
Date: Wed, 8 Jun 2016 17:00:47 -0700
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On Wed, Jun 8, 2016 at 3:35 PM, Yinghai Lu <yinghai@kernel.org> wrote:

> At the same time, can you kill __pci_mmap_set_pgprot() for powerpc.

Can you please put your two patches and this attached one into to pci/next?

Then I could send updated PCI: Let pci_mmap_page_range() take resource address.

Thanks

Yinghai

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From - Thu Nov 08 21:39:00 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: kernel BUG in drivers/scsi/53c700.c:1129
Date: Thu, 9 Jun 2016 21:36:04 +0200
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Hi James,

I just tried Debian kernel 4.6.1-1 on my historic 715/64 machine, and it
ran into this  BUG() in the LASI scsi driver:

 scsi 0:0:6:0: no saved request for untagged cmd

Any idea?

Helge
 
[    0.000000] Linux version 4.6.0-1-parisc (debian-kernel@lists.debian.org) (gcc version 5.4.0 20160603 (Debian 5.4.0-3) ) #1 Debian 4.6.1-1 (2016-06-06)
...
[    0.000000] Determining PDC firmware type: Snake.
[    0.000000] model 000060a0 00000481 00000000 00000000 773c7d2c 00000000 00000004 00000072 00000072
[    0.000000] vers  0000000c
[    0.000000] model 9000/715
[    0.000000] Total Memory: 160 MB
...
[   43.180000] SCSI subsystem initialized
[   45.076000] 53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
[   45.156000] scsi0: 53c710 rev 2 
[   46.204000] scsi host0: LASI SCSI 53c700
[   58.268000] scsi 0:0:6:0: no saved request for untagged cmd
[   58.336000] ------------[ cut here ]------------
[   58.392000] kernel BUG at /build/linux-XAODSw/linux-4.6.1/drivers/scsi/53c700.c:1129!
[   58.484000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-1-parisc #1 Debian 4.6.1-1
[   58.580000] task: 1083cdd8 ti: 107b1000 task.ti: 107b1000
[   58.644000] 
[   58.660000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   58.716000] PSW: 00000000000001001111111100001110 Not tainted
[   58.788000] r00-03  0004ff0e 0084e388 00a8ea8c 107ba400
[   58.848000] r04-07  00000000 00000000 15b88cc0 00000006
[   58.912000] r08-11  198ca400 000000ff 00000020 00000000
[   58.976000] r12-15  000000ff 00001003 10801020 00000001
[   59.036000] r16-19  107b1240 00000002 000000ff 00000001
[   59.100000] r20-23  00000001 0000000e 0084f388 00000000
[   59.164000] r24-27  107ba500 0083b540 1021a7a4 107b5020
[   59.224000] r28-31  00000000 00000040 107ba480 104d52bc
[   59.288000] sr00-03  00000000 00000000 00000000 0000000d
[   59.352000] sr04-07  00000000 00000000 00000000 00000000
[   59.416000] 
[   59.432000] IASQ: 00000000 00000000 IAOQ: 00a8ea8c 00a8ea90
[   59.500000]  IIR: 03ffe01f    ISR: 0000000d  IOR: 00a8ea90
[   59.564000]  CPU:        0   CR30: 107b1000 CR31: f00effff
[   59.632000]  ORIG_R28: 10855e80
[   59.668000]  IAOQ[0]: process_script_interrupt+0x13ec/0x16a4 [53c700]
[   59.748000]  IAOQ[1]: process_script_interrupt+0x13f0/0x16a4 [53c700]
[   59.824000]  RP(r2): process_script_interrupt+0x13ec/0x16a4 [53c700]
[   59.900000] Backtrace:
[   59.928000]  [<00a8ea8c>] process_script_interrupt+0x13ec/0x16a4 [53c700]
[   60.012000] 
[   60.028000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-1-parisc #1 Debian 4.6.1-1
[   60.120000] Backtrace:
[   60.148000]  [<1015bffc>] show_stack+0x3c/0x50
[   60.204000]  [<10425d40>] dump_stack+0x28/0x38
[   60.256000]  [<1015c180>] die_if_kernel+0x134/0x20c
[   60.316000]  [<1015cd34>] handle_interruption+0x804/0x828
[   60.380000] 
[   60.400000] Kernel panic - not syncing: Fatal exception in interrupt
[   60.400000] ---[ end Kernel panic - not syncing: Fatal exception in interrupt
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From - Thu Nov 08 21:39:00 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH v4] parisc: add <asm/hash.h>
Date: Thu, 9 Jun 2016 21:53:59 +0200
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Hi George,

On 08.06.2016 01:45, George Spelvin wrote:
> PA-RISC is interesting; integer multiplies are implemented in the
> FPU, so are painful in the kernel.  But it tries to be friendly to
> shift-and-add sequences for constant multiplies.
>=20
> __hash_32 is implemented using the same shift-and-add sequence as
> Microblaze, just scheduled for the PA7100.  (It's 2-way superscalar
> but in-order, like the Pentium.)
>=20
> hash_64 was tricky, but a suggestion from Jason Thong allowed a
> good solution by breaking up the multiplier.  After a lot of manual
> optimization, I found a 19-instruction sequence for the multiply that
> can be executed in 10 cycles using only 4 temporaries.
>=20
> (The PA8xxx can issue 4 instructions per cycle, but 2 must be ALU ops
> and 2 must be loads/stores.  And the final add can't be paired.)
>=20
> An alternative considered, but ultimately not used, was Thomas Wang's
> 64-to-32-bit integer hash.  At 12 instructions, it's smaller, but the=
y're
> all sequentially dependent, so it has longer latency.
>=20
> https://web.archive.org/web/2011/http://www.concentric.net/~Ttwang/te=
ch/inthash.htm
> http://burtleburtle.net/bob/hash/integer.html
>=20
> Signed-off-by: George Spelvin <linux@sciencehorizons.net>
> Cc: Helge Deller <deller@gmx.de>
> Cc: linux-parisc@vger.kernel.org
> ---
> No functional change, just cleaned up a lot.  This is final if no pro=
blems
> are found.

Thanks, but two minor issues...

>  arch/parisc/Kconfig            |   1 +
>  arch/parisc/include/asm/hash.h | 146 +++++++++++++++++++++++++++++++=
++++++++++
>  2 files changed, 147 insertions(+)
>  create mode 100644 arch/parisc/include/asm/hash.h
>=20
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index 88cfaa8a..8ed2a444 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -30,6 +30,7 @@ config PARISC
>  	select TTY # Needed for pdc_cons.c
>  	select HAVE_DEBUG_STACKOVERFLOW
>  	select HAVE_ARCH_AUDITSYSCALL
> +	select HAVE_ARCH_HASH
>  	select HAVE_ARCH_SECCOMP_FILTER
>  	select ARCH_NO_COHERENT_DMA_MMAP

Minor issue:
This line (ARCH_NO_COHERENT) is not yet in Linus' tree.
I assume you diff'ed against -next or something?
Maybe you move the "select HAVE_ARCH_HASH" one or two lines up, or
wait until the other patch went upstream?

> diff --git a/arch/parisc/include/asm/hash.h b/arch/parisc/include/asm=
/hash.h
> new file mode 100644
> index 00000000..fb992a3b
> --- /dev/null
> +++ b/arch/parisc/include/asm/hash.h
> @@ -0,0 +1,146 @@
> +#ifndef _ASM_HASH_H
> +#define _ASM_HASH_H
> +
> +/*
> + * HP-PA only implements integer multiply in the FPU.  However, for
> + * integer multiplies by constant, it has a number of shift-and-add
> + * (but no shift-and-subtract, sigh!) instructions that a compiler
> + * can synthesize a code sequence with.
> + *
> + * Unfortunately, GCC isn't very efficient at using them.  For examp=
le
> + * it uses three instructions for "x *=3D 21" when only two are need=
ed.
> + * But we can find a sequence manually.
> + */
> +
> +#define HAVE_ARCH__HASH_32 1
> +
> +/*
> + * This is a multiply by GOLDEN_RATIO_32 =3D 0x61C88647 optimized fo=
r the
> + * PA7100 pairing rules.  This is an in-order 2-way superscalar proc=
essor.
> + * Only one instruction in a pair may be a shift (by more than 3 bit=
s),
> + * but other than that, simple ALU ops (including shift-and-add by u=
p
> + * to 3 bits) may be paired arbitrarily.
> + *
> + * PA8xxx processors also dual-issue ALU instructions, although with
> + * fewer constraints, so this schedule is good for them, too.
> + *
> + * This 6-step sequence was found by Yevgen Voronenko's implementati=
on
> + * of the Hcub algorithm at http://spiral.ece.cmu.edu/mcm/gen.html.
> + */
> +static inline u32 __attribute_const__ __hash_32(u32 x)
> +{
> +	u32 a, b, c;
> +
> +	/*
> +	 * Phase 1: Compute  a =3D (x << 19) + x,
> +	 * b =3D (x << 9) + a, c =3D (x << 23) + b.
> +	 */
> +	a =3D x << 19;		/* Two shifts can't be paired */
> +	b =3D x << 9;	a +=3D x;
> +	c =3D x << 23;	b +=3D a;
> +			c +=3D b;
> +	/* Phase 2: Return (b<<11) + (c<<6) + (a<<3) - c */
> +	b <<=3D 11;
> +	a +=3D c << 3;	b -=3D c;
> +	return (a << 3) + b;
> +}
> +
> +#if BITS_PER_LONG =3D=3D 64
> +
> +#define HAVE_ARCH_HASH_64 1
> +
> +/*
> + * Finding a good shift-and-add chain for GOLDEN_RATIO_64 is tricky,
> + * because available software for the purpose chokes on constants th=
is
> + * large.  (It's mostly designed for compiling FIR filter coefficien=
ts
> + * into FPGAs.)
> + *
> + * However, Jason Thong pointed out a work-around.  The Hcub softwar=
e
> + * (http://spiral.ece.cmu.edu/mcm/gen.html) is designed for *multipl=
e*
> + * constant multiplication, and is good at finding shift-and-add cha=
ins
> + * which share common terms.
> + *
> + * Looking at 0x0x61C8864680B583EB in binary:
> + * 0110000111001000100001100100011010000000101101011000001111101011
> + *  \______________/    \__________/       \_______/     \________/
> + *   \____________________________/         \____________________/
> + * you can see the non-zero bits are divided into several well-separ=
ated
> + * blocks.  Hcub can find algorithms for those terms separately, whi=
ch
> + * can then be shifted and added together.
> + *
> + * Dividing the input into 2, 3 or 4 blocks, Hcub can find solutions
> + * with 10, 9 or 8 adds, respectively, making a total of 11 for the
> + * whole number.
> + *
> + * Using just two large blocks, 0xC3910C8D << 31 in the high bits,
> + * and 0xB583EB in the low bits, produces as good an algorithm as an=
y,
> + * and with one more small shift than alternatives.
> + *
> + * The high bits are a larger number and more work to compute, as we=
ll
> + * as needing one extra cycle to shift left 31 bits before the final
> + * addition, so they are the critical path for scheduling.  The low =
bits
> + * can fit into the scheduling slots left over.
> + */
> +
> +
> +/*
> + * This _ASSIGN(dst, src) macro performs "dst =3D src", but prevents=
 GCC
> + * from inferring anything about the value assigned to "dest".
> + *
> + * This prevents it from mis-optimizing certain sequences.
> + * In particular, gcc is annoyingly eager to combine consecutive shi=
fts.
> + * Given "x <<=3D 19; y +=3D x; z +=3D x << 1;", GCC will turn this =
into
> + * "y +=3D x << 19; z +=3D x << 20;" even though the latter sequence=
 needs
> + * an additional instruction and temporary register.
> + *
> + * Because no actual assembly code is generated, this construct is
> + * usefully portable across all GCC platforms, and so can be test-co=
mpiled
> + * on non-PA systems.
> + *
> + * In two places, additional unused input dependencies are added.  T=
his
> + * forces GCC's scheduling so it does not rearrange instructions too=
 much.
> + * Because the PA-8xxx is out of order, I'm not sure how much this m=
atters,
> + * but why make it more difficult for the processor than necessary?
> + */
> +#define _ASSIGN(dst, src, ...) asm("" : "=3Dr" (dst) : "0" (src), ##=
__VA_ARGS__)
> +
> +/*
> + * Multiply by GOLDEN_RATIO_64 =3D 0x0x61C8864680B583EB using a heav=
ily
> + * optimized shift-and-add sequence.
> + *
> + * Without the final shift, the multiply proper is 19 instructions,
> + * 10 cycles and uses only 4 temporaries.  Whew!
> + *
> + * You are not expected to understand this.
> + */
> +static __always_inline u32 __attribute_const__
> +hash_64(u64 a, unsigned int bits)
> +{
> +	u64 b, c, d;
> +
> +	/*
> +	 * Encourage GCC to move a dynamic shift to %sar early,
> +	 * thereby freeing up an additional temporary register.
> +	 */
> +	if (!__builtin_constant_p(bits))
> +		asm("" : "=3Dq" (bits) : "0" (64 - bits));
> +	else
> +		bits =3D 64 - bits;
> +
> +	_ASSIGN(b, a*5);	c =3D a << 13;
> +	b =3D (b << 2) + a;	_ASSIGN(d, a << 17);
> +	a =3D b + (a << 1);	c +=3D d;
> +	d =3D a << 10;		_ASSIGN(a, a << 19);
> +	d =3D a - d;		_ASSIGN(a, a << 4, "X" (d));
> +	c +=3D b;			a +=3D b;
> +	d -=3D c;			c +=3D a << 1;
> +	a +=3D c << 3;		_ASSIGN(b, b << 7+31, "X" (c), "X" (d));

This line produces compiler warnings:
arch/parisc/include/asm/hash.h: In function =91hash_64=92:
arch/parisc/include/asm/hash.h:137:29: warning: suggest parentheses aro=
und =91+=92 inside =91<<=92 [-Wparentheses]
  a +=3D c << 3;  _ASSIGN(b, b << 7+31, "X" (c), "X" (d));
                             ^

You should add () around 7+31.

With those changes I sucessfully tested it on a 64bit parisc kernel.

So, please add
Acked-by: Helge Deller <deller@gmx.de>


THANKS!
Helge


> +	a <<=3D 31;		b +=3D d;
> +	a +=3D b;
> +	return a >> bits;
> +}
> +#undef _ASSIGN	/* We're a widely-used header file, so don't litter! =
*/
> +
> +#endif /* BITS_PER_LONG =3D=3D 64 */
> +
> +#endif /* _ASM_HASH_H */
>=20

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From - Thu Nov 08 21:39:00 2018
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X-Mozilla-Keys:                                                                                 
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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.uml.devel
Subject: [PATCH 00/14] run seccomp after ptrace
Date: Thu,  9 Jun 2016 14:01:50 -0700
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Cc: Kees Cook <keescook@chromium.org>,
	Andy Lutomirski <luto@kernel.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Chris Metcalf <cmetcalf@mellanox.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	James Hogan <james.hogan@imgtec.com>,
	Jeff Dike <jdike@addtoit.com>, linux-arch@vger.kernel.org,
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	Paul Mackerras <paulus@samba.org>,
	Ralf Baechle <ralf@linux-mips.org>,
	Richard Weinberger <richard@nod.at>,
	Russell King <linux@armlinux.org
To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26854>

There has been a long-standing (and documented) issue with seccomp
where ptrace can be used to change a syscall out from under seccomp.
This is a problem for containers and other wider seccomp filtered
environments where ptrace needs to remain available, as it allows
for an escape of the seccomp filter.

Since the ptrace attack surface is available for any allowed syscall,
moving seccomp after ptrace doesn't increase the actually available
attack surface. And this actually improves tracing since, for
example, tracers will be notified of syscall entry before seccomp
sends a SIGSYS, which makes debugging filters much easier.

The per-architecture changes do make one (hopefully small)
semantic change, which is that since ptrace comes first, it may
request a syscall be skipped. Running seccomp after this doesn't
make sense, so if ptrace wants to skip a syscall, it will bail
out early similarly to how seccomp was. This means that skipped
syscalls will not be fed through audit, though that likely means
we're actually avoiding noise this way.

This series first cleans up seccomp to remove the now unneeded
two-phase entry, fixes the SECCOMP_RET_TRACE hole (same as the
ptrace hole above), and then reorders seccomp after ptrace on
each architecture.

Thanks,

-Kees
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When RET_TRACE triggers, a tracer may change a syscall into something that
should be filtered by seccomp. This re-runs seccomp after a trace event
to make sure things continue to pass.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@kernel.org>
---
 kernel/seccomp.c | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index 14a37d71b612..54d15eb2b701 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -556,7 +556,8 @@ void secure_computing_strict(int this_syscall)
 #else
 
 #ifdef CONFIG_SECCOMP_FILTER
-static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd)
+static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd,
+			    const bool recheck_after_trace)
 {
 	u32 filter_ret, action;
 	int data;
@@ -588,6 +589,10 @@ static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd)
 		goto skip;
 
 	case SECCOMP_RET_TRACE:
+		/* We've been put in this state by the ptracer already. */
+		if (recheck_after_trace)
+			return 0;
+
 		/* ENOSYS these calls if there is no tracer attached. */
 		if (!ptrace_event_enabled(current, PTRACE_EVENT_SECCOMP)) {
 			syscall_set_return_value(current,
@@ -611,6 +616,15 @@ static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd)
 		if (this_syscall < 0)
 			goto skip;
 
+		/*
+		 * Recheck the syscall, since it may have changed. This
+		 * intentionally uses a NULL struct seccomp_data to force
+		 * a reload of all registers. This does not goto skip since
+		 * a skip would have already been reported.
+		 */
+		if (__seccomp_filter(this_syscall, NULL, true))
+			return -1;
+
 		return 0;
 
 	case SECCOMP_RET_ALLOW:
@@ -629,7 +643,8 @@ skip:
 	return -1;
 }
 #else
-static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd)
+static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd,
+			    const bool recheck_after_trace)
 {
 	BUG();
 }
@@ -652,7 +667,7 @@ int __secure_computing(const struct seccomp_data *sd)
 		__secure_computing_strict(this_syscall);  /* may call do_exit */
 		return 0;
 	case SECCOMP_MODE_FILTER:
-		return __seccomp_filter(this_syscall, sd);
+		return __seccomp_filter(this_syscall, sd, false);
 	default:
 		BUG();
 	}
-- 
2.7.4



From - Thu Nov 08 21:39:00 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 01/14] seccomp: add tests for ptrace hole
Date: Thu,  9 Jun 2016 14:01:51 -0700
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Cc: Kees Cook <keescook@chromium.org>,
	Andy Lutomirski <luto@kernel.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Chris Metcalf <cmetcalf@mellanox.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Helge Deller <deller@gmx.de>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26856>

One problem with seccomp was that ptrace could be used to change a
syscall after seccomp filtering had completed. This was a well documented
limitation, and it was recommended to block ptrace when defining a filter
to avoid this problem. This can be quite a limitation for containers or
other places where ptrace is desired even under seccomp filters.

This adds tests for both SECCOMP_RET_TRACE and PTRACE_SYSCALL manipulations.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@kernel.org>
---
 tools/testing/selftests/seccomp/seccomp_bpf.c | 176 ++++++++++++++++++++++++--
 1 file changed, 165 insertions(+), 11 deletions(-)

diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
index 2e58549b2f02..03f1fa495d74 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -1021,8 +1021,8 @@ void tracer_stop(int sig)
 typedef void tracer_func_t(struct __test_metadata *_metadata,
 			   pid_t tracee, int status, void *args);
 
-void tracer(struct __test_metadata *_metadata, int fd, pid_t tracee,
-	    tracer_func_t tracer_func, void *args)
+void start_tracer(struct __test_metadata *_metadata, int fd, pid_t tracee,
+	    tracer_func_t tracer_func, void *args, bool ptrace_syscall)
 {
 	int ret = -1;
 	struct sigaction action = {
@@ -1042,12 +1042,16 @@ void tracer(struct __test_metadata *_metadata, int fd, pid_t tracee,
 	/* Wait for attach stop */
 	wait(NULL);
 
-	ret = ptrace(PTRACE_SETOPTIONS, tracee, NULL, PTRACE_O_TRACESECCOMP);
+	ret = ptrace(PTRACE_SETOPTIONS, tracee, NULL, ptrace_syscall ?
+						      PTRACE_O_TRACESYSGOOD :
+						      PTRACE_O_TRACESECCOMP);
 	ASSERT_EQ(0, ret) {
 		TH_LOG("Failed to set PTRACE_O_TRACESECCOMP");
 		kill(tracee, SIGKILL);
 	}
-	ptrace(PTRACE_CONT, tracee, NULL, 0);
+	ret = ptrace(ptrace_syscall ? PTRACE_SYSCALL : PTRACE_CONT,
+		     tracee, NULL, 0);
+	ASSERT_EQ(0, ret);
 
 	/* Unblock the tracee */
 	ASSERT_EQ(1, write(fd, "A", 1));
@@ -1063,12 +1067,13 @@ void tracer(struct __test_metadata *_metadata, int fd, pid_t tracee,
 			/* Child is dead. Time to go. */
 			return;
 
-		/* Make sure this is a seccomp event. */
-		ASSERT_EQ(true, IS_SECCOMP_EVENT(status));
+		/* Check if this is a seccomp event. */
+		ASSERT_EQ(!ptrace_syscall, IS_SECCOMP_EVENT(status));
 
 		tracer_func(_metadata, tracee, status, args);
 
-		ret = ptrace(PTRACE_CONT, tracee, NULL, NULL);
+		ret = ptrace(ptrace_syscall ? PTRACE_SYSCALL : PTRACE_CONT,
+			     tracee, NULL, 0);
 		ASSERT_EQ(0, ret);
 	}
 	/* Directly report the status of our test harness results. */
@@ -1079,7 +1084,7 @@ void tracer(struct __test_metadata *_metadata, int fd, pid_t tracee,
 void cont_handler(int num)
 { }
 pid_t setup_trace_fixture(struct __test_metadata *_metadata,
-			  tracer_func_t func, void *args)
+			  tracer_func_t func, void *args, bool ptrace_syscall)
 {
 	char sync;
 	int pipefd[2];
@@ -1095,7 +1100,8 @@ pid_t setup_trace_fixture(struct __test_metadata *_metadata,
 	signal(SIGALRM, cont_handler);
 	if (tracer_pid == 0) {
 		close(pipefd[0]);
-		tracer(_metadata, pipefd[1], tracee, func, args);
+		start_tracer(_metadata, pipefd[1], tracee, func, args,
+			     ptrace_syscall);
 		syscall(__NR_exit, 0);
 	}
 	close(pipefd[1]);
@@ -1177,7 +1183,7 @@ FIXTURE_SETUP(TRACE_poke)
 
 	/* Launch tracer. */
 	self->tracer = setup_trace_fixture(_metadata, tracer_poke,
-					   &self->tracer_args);
+					   &self->tracer_args, false);
 }
 
 FIXTURE_TEARDOWN(TRACE_poke)
@@ -1399,6 +1405,29 @@ void tracer_syscall(struct __test_metadata *_metadata, pid_t tracee,
 
 }
 
+void tracer_ptrace(struct __test_metadata *_metadata, pid_t tracee,
+		   int status, void *args)
+{
+	int ret, nr;
+	unsigned long msg;
+	static bool entry;
+
+	/* Make sure we got an empty message. */
+	ret = ptrace(PTRACE_GETEVENTMSG, tracee, NULL, &msg);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, msg);
+
+	/* The only way to tell PTRACE_SYSCALL entry/exit is by counting. */
+	entry = !entry;
+	if (!entry)
+		return;
+
+	nr = get_syscall(_metadata, tracee);
+
+	if (nr == __NR_getpid)
+		change_syscall(_metadata, tracee, __NR_getppid);
+}
+
 FIXTURE_DATA(TRACE_syscall) {
 	struct sock_fprog prog;
 	pid_t tracer, mytid, mypid, parent;
@@ -1440,7 +1469,8 @@ FIXTURE_SETUP(TRACE_syscall)
 	ASSERT_NE(self->parent, self->mypid);
 
 	/* Launch tracer. */
-	self->tracer = setup_trace_fixture(_metadata, tracer_syscall, NULL);
+	self->tracer = setup_trace_fixture(_metadata, tracer_syscall, NULL,
+					   false);
 }
 
 FIXTURE_TEARDOWN(TRACE_syscall)
@@ -1500,6 +1530,130 @@ TEST_F(TRACE_syscall, syscall_dropped)
 	EXPECT_NE(self->mytid, syscall(__NR_gettid));
 }
 
+TEST_F(TRACE_syscall, skip_after_RET_TRACE)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getppid, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ERRNO | EPERM),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+	long ret;
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Install fixture filter. */
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->prog, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Install "errno on getppid" filter. */
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Tracer will redirect getpid to getppid, and we should see EPERM. */
+	EXPECT_EQ(-1, syscall(__NR_getpid));
+	EXPECT_EQ(EPERM, errno);
+}
+
+TEST_F_SIGNAL(TRACE_syscall, kill_after_RET_TRACE, SIGSYS)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getppid, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+	long ret;
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Install fixture filter. */
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->prog, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Install "death on getppid" filter. */
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Tracer will redirect getpid to getppid, and we should die. */
+	EXPECT_NE(self->mypid, syscall(__NR_getpid));
+}
+
+TEST_F(TRACE_syscall, skip_after_ptrace)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getppid, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ERRNO | EPERM),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+	long ret;
+
+	/* Swap SECCOMP_RET_TRACE tracer for PTRACE_SYSCALL tracer. */
+	teardown_trace_fixture(_metadata, self->tracer);
+	self->tracer = setup_trace_fixture(_metadata, tracer_ptrace, NULL,
+					   true);
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Install "errno on getppid" filter. */
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Tracer will redirect getpid to getppid, and we should see EPERM. */
+	EXPECT_EQ(-1, syscall(__NR_getpid));
+	EXPECT_EQ(EPERM, errno);
+}
+
+TEST_F_SIGNAL(TRACE_syscall, kill_after_ptrace, SIGSYS)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getppid, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+	long ret;
+
+	/* Swap SECCOMP_RET_TRACE tracer for PTRACE_SYSCALL tracer. */
+	teardown_trace_fixture(_metadata, self->tracer);
+	self->tracer = setup_trace_fixture(_metadata, tracer_ptrace, NULL,
+					   true);
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Install "death on getppid" filter. */
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Tracer will redirect getpid to getppid, and we should die. */
+	EXPECT_NE(self->mypid, syscall(__NR_getpid));
+}
+
 #ifndef __NR_seccomp
 # if defined(__i386__)
 #  define __NR_seccomp 354
-- 
2.7.4

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From - Thu Nov 08 21:39:00 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.uml.devel
Subject: [PATCH 02/14] seccomp: Add a seccomp_data parameter secure_computing()
Date: Thu,  9 Jun 2016 14:01:52 -0700
Lines: 190
Approved: news@gmane.org
Message-ID: <1465506124-21866-3-git-send-email-keescook@chromium.org>
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NNTP-Posting-Date: Thu, 9 Jun 2016 21:03:21 +0000 (UTC)
Cc: Kees Cook <keescook@chromium.org>,
        Andy Lutomirski <luto@kernel.org>, linux-arch@vger.kernel.org,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Chris Metcalf <cmetcalf@mellanox.com>,
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        Helge Deller <deller@gmx.de>,
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From: Andy Lutomirski <luto@kernel.org>

Currently, if arch code wants to supply seccomp_data directly to
seccomp (which is generally much faster than having seccomp do it
using the syscall_get_xyz() API), it has to use the two-phase
seccomp hooks. Add it to the easy hooks, too.

Cc: linux-arch@vger.kernel.org
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
---
 arch/arm/kernel/ptrace.c              | 2 +-
 arch/arm64/kernel/ptrace.c            | 2 +-
 arch/mips/kernel/ptrace.c             | 2 +-
 arch/parisc/kernel/ptrace.c           | 2 +-
 arch/powerpc/kernel/ptrace.c          | 2 +-
 arch/s390/kernel/ptrace.c             | 2 +-
 arch/tile/kernel/ptrace.c             | 2 +-
 arch/um/kernel/skas/syscall.c         | 2 +-
 arch/x86/entry/vsyscall/vsyscall_64.c | 2 +-
 include/linux/seccomp.h               | 8 ++++----
 kernel/seccomp.c                      | 4 ++--
 11 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index ef9119f7462e..ad5e90ab165c 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -934,7 +934,7 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno)
 
 	/* Do the secure computing check first; failures should be fast. */
 #ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
-	if (secure_computing() == -1)
+	if (secure_computing(NULL) == -1)
 		return -1;
 #else
 	/* XXX: remove this once OABI gets fixed */
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index 3f6cd5c5234f..6e2cf046615d 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -1247,7 +1247,7 @@ static void tracehook_report_syscall(struct pt_regs *regs,
 asmlinkage int syscall_trace_enter(struct pt_regs *regs)
 {
 	/* Do the secure computing check first; failures should be fast. */
-	if (secure_computing() == -1)
+	if (secure_computing(NULL) == -1)
 		return -1;
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 0dcf69194473..c50af846ecf9 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -893,7 +893,7 @@ asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall)
 
 	current_thread_info()->syscall = syscall;
 
-	if (secure_computing() == -1)
+	if (secure_computing(NULL) == -1)
 		return -1;
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index b5458b37fc5b..8edc47c0b98e 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -312,7 +312,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 long do_syscall_trace_enter(struct pt_regs *regs)
 {
 	/* Do the secure computing check first. */
-	if (secure_computing() == -1)
+	if (secure_computing(NULL) == -1)
 		return -1;
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 30a03c03fe73..ed799e994773 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -1783,7 +1783,7 @@ static int do_seccomp(struct pt_regs *regs)
 	 * have already loaded -ENOSYS into r3, or seccomp has put
 	 * something else in r3 (via SECCOMP_RET_ERRNO/TRACE).
 	 */
-	if (__secure_computing())
+	if (__secure_computing(NULL))
 		return -1;
 
 	/*
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 49b1c13bf6c9..c238e9958c2a 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -824,7 +824,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 	long ret = 0;
 
 	/* Do the secure computing check first. */
-	if (secure_computing()) {
+	if (secure_computing(NULL)) {
 		/* seccomp failures shouldn't expose any additional code. */
 		ret = -1;
 		goto out;
diff --git a/arch/tile/kernel/ptrace.c b/arch/tile/kernel/ptrace.c
index 54e7b723db99..8c6d2f2fefa3 100644
--- a/arch/tile/kernel/ptrace.c
+++ b/arch/tile/kernel/ptrace.c
@@ -255,7 +255,7 @@ int do_syscall_trace_enter(struct pt_regs *regs)
 {
 	u32 work = ACCESS_ONCE(current_thread_info()->flags);
 
-	if (secure_computing() == -1)
+	if (secure_computing(NULL) == -1)
 		return -1;
 
 	if (work & _TIF_SYSCALL_TRACE) {
diff --git a/arch/um/kernel/skas/syscall.c b/arch/um/kernel/skas/syscall.c
index 48b0dcbd87be..9c5570f0f397 100644
--- a/arch/um/kernel/skas/syscall.c
+++ b/arch/um/kernel/skas/syscall.c
@@ -21,7 +21,7 @@ void handle_syscall(struct uml_pt_regs *r)
 	PT_REGS_SET_SYSCALL_RETURN(regs, -ENOSYS);
 
 	/* Do the secure computing check first; failures should be fast. */
-	if (secure_computing() == -1)
+	if (secure_computing(NULL) == -1)
 		return;
 
 	if (syscall_trace_enter(regs))
diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
index 174c2549939d..85acde5fa442 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -207,7 +207,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
 	 */
 	regs->orig_ax = syscall_nr;
 	regs->ax = -ENOSYS;
-	tmp = secure_computing();
+	tmp = secure_computing(NULL);
 	if ((!tmp && regs->orig_ax != syscall_nr) || regs->ip != address) {
 		warn_bad_vsyscall(KERN_DEBUG, regs,
 				  "seccomp tried to change syscall nr or ip");
diff --git a/include/linux/seccomp.h b/include/linux/seccomp.h
index 2296e6b2f690..9eaa7b34d6da 100644
--- a/include/linux/seccomp.h
+++ b/include/linux/seccomp.h
@@ -28,11 +28,11 @@ struct seccomp {
 };
 
 #ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
-extern int __secure_computing(void);
-static inline int secure_computing(void)
+extern int __secure_computing(const struct seccomp_data *sd);
+static inline int secure_computing(const struct seccomp_data *sd)
 {
 	if (unlikely(test_thread_flag(TIF_SECCOMP)))
-		return  __secure_computing();
+		return  __secure_computing(sd);
 	return 0;
 }
 
@@ -61,7 +61,7 @@ struct seccomp { };
 struct seccomp_filter { };
 
 #ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
-static inline int secure_computing(void) { return 0; }
+static inline int secure_computing(struct seccomp_data *sd) { return 0; }
 #else
 static inline void secure_computing_strict(int this_syscall) { return; }
 #endif
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index 7002796f14a4..06816290a212 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -554,9 +554,9 @@ void secure_computing_strict(int this_syscall)
 		BUG();
 }
 #else
-int __secure_computing(void)
+int __secure_computing(const struct seccomp_data *sd)
 {
-	u32 phase1_result = seccomp_phase1(NULL);
+	u32 phase1_result = seccomp_phase1(sd);
 
 	if (likely(phase1_result == SECCOMP_PHASE1_OK))
 		return 0;
-- 
2.7.4




From - Thu Nov 08 21:39:00 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.uml.devel
Subject: [PATCH 03/14] x86/entry: Get rid of two-phase syscall entry work
Date: Thu,  9 Jun 2016 14:01:53 -0700
Lines: 145
Approved: news@gmane.org
Message-ID: <1465506124-21866-4-git-send-email-keescook@chromium.org>
References: <1465506124-21866-1-git-send-email-keescook@chromium.org>
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Cc: Kees Cook <keescook@chromium.org>,
	Andy Lutomirski <luto@kernel.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Chris Metcalf <cmetcalf@mellanox.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	James Hogan <james.hogan@imgtec.com>,
	Jeff Dike <jdike@addtoit.com>, linux-arch@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-mips@linux-mips.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-s390@vger.kernel.org, "Maciej W. Rozycki" <macro@imgtec.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Paul Mackerras <paulus@samba.org>,
	Ralf Baechle <ralf@linux-mips.org>,
	Richard Weinberger <richard@nod.at>,
	Russell King <linux@armlinux.org
To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2240084>

From: Andy Lutomirski <luto@kernel.org>

I added two-phase syscall entry work back when the entry slow path
was very slow.  Nowadays, the entry slow path is fast and two-phase
entry work serves no purpose.  Remove it.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
---
 arch/x86/entry/common.c       | 84 +++++--------------------------------------
 arch/x86/include/asm/ptrace.h |  6 ----
 2 files changed, 8 insertions(+), 82 deletions(-)

diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index ec138e538c44..df56ca394877 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -64,20 +64,13 @@ static void do_audit_syscall_entry(struct pt_regs *regs, u32 arch)
 }
 
 /*
- * We can return 0 to resume the syscall or anything else to go to phase
- * 2.  If we resume the syscall, we need to put something appropriate in
- * regs->orig_ax.
- *
- * NB: We don't have full pt_regs here, but regs->orig_ax and regs->ax
- * are fully functional.
- *
- * For phase 2's benefit, our return value is:
- * 0:			resume the syscall
- * 1:			go to phase 2; no seccomp phase 2 needed
- * anything else:	go to phase 2; pass return value to seccomp
+ * Returns the syscall nr to run (which should match regs->orig_ax) or -1
+ * to skip the syscall.
  */
-unsigned long syscall_trace_enter_phase1(struct pt_regs *regs, u32 arch)
+static long syscall_trace_enter(struct pt_regs *regs)
 {
+	u32 arch = in_ia32_syscall() ? AUDIT_ARCH_I386 : AUDIT_ARCH_X86_64;
+
 	struct thread_info *ti = pt_regs_to_thread_info(regs);
 	unsigned long ret = 0;
 	u32 work;
@@ -118,59 +111,9 @@ unsigned long syscall_trace_enter_phase1(struct pt_regs *regs, u32 arch)
 			sd.args[5] = regs->bp;
 		}
 
-		BUILD_BUG_ON(SECCOMP_PHASE1_OK != 0);
-		BUILD_BUG_ON(SECCOMP_PHASE1_SKIP != 1);
-
-		ret = seccomp_phase1(&sd);
-		if (ret == SECCOMP_PHASE1_SKIP) {
-			regs->orig_ax = -1;
-			ret = 0;
-		} else if (ret != SECCOMP_PHASE1_OK) {
-			return ret;  /* Go directly to phase 2 */
-		}
-
-		work &= ~_TIF_SECCOMP;
-	}
-#endif
-
-	/* Do our best to finish without phase 2. */
-	if (work == 0)
-		return ret;  /* seccomp and/or nohz only (ret == 0 here) */
-
-#ifdef CONFIG_AUDITSYSCALL
-	if (work == _TIF_SYSCALL_AUDIT) {
-		/*
-		 * If there is no more work to be done except auditing,
-		 * then audit in phase 1.  Phase 2 always audits, so, if
-		 * we audit here, then we can't go on to phase 2.
-		 */
-		do_audit_syscall_entry(regs, arch);
-		return 0;
-	}
-#endif
-
-	return 1;  /* Something is enabled that we can't handle in phase 1 */
-}
-
-/* Returns the syscall nr to run (which should match regs->orig_ax). */
-long syscall_trace_enter_phase2(struct pt_regs *regs, u32 arch,
-				unsigned long phase1_result)
-{
-	struct thread_info *ti = pt_regs_to_thread_info(regs);
-	long ret = 0;
-	u32 work = ACCESS_ONCE(ti->flags) & _TIF_WORK_SYSCALL_ENTRY;
-
-	if (IS_ENABLED(CONFIG_DEBUG_ENTRY))
-		BUG_ON(regs != task_pt_regs(current));
-
-#ifdef CONFIG_SECCOMP
-	/*
-	 * Call seccomp_phase2 before running the other hooks so that
-	 * they can see any changes made by a seccomp tracer.
-	 */
-	if (phase1_result > 1 && seccomp_phase2(phase1_result)) {
-		/* seccomp failures shouldn't expose any additional code. */
-		return -1;
+		ret = __secure_computing(&sd);
+		if (ret == -1)
+			return ret;
 	}
 #endif
 
@@ -189,17 +132,6 @@ long syscall_trace_enter_phase2(struct pt_regs *regs, u32 arch,
 	return ret ?: regs->orig_ax;
 }
 
-long syscall_trace_enter(struct pt_regs *regs)
-{
-	u32 arch = in_ia32_syscall() ? AUDIT_ARCH_I386 : AUDIT_ARCH_X86_64;
-	unsigned long phase1_result = syscall_trace_enter_phase1(regs, arch);
-
-	if (phase1_result == 0)
-		return regs->orig_ax;
-	else
-		return syscall_trace_enter_phase2(regs, arch, phase1_result);
-}
-
 #define EXIT_TO_USERMODE_LOOP_FLAGS				\
 	(_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_UPROBE |	\
 	 _TIF_NEED_RESCHED | _TIF_USER_RETURN_NOTIFY)
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
index 6271281f947d..2b5d686ea9f3 100644
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -83,12 +83,6 @@ extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
 			 int error_code, int si_code);
 
 
-extern unsigned long syscall_trace_enter_phase1(struct pt_regs *, u32 arch);
-extern long syscall_trace_enter_phase2(struct pt_regs *, u32 arch,
-				       unsigned long phase1_result);
-
-extern long syscall_trace_enter(struct pt_regs *);
-
 static inline unsigned long regs_return_value(struct pt_regs *regs)
 {
 	return regs->ax;
-- 
2.7.4



From - Thu Nov 08 21:39:00 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 12/14] powerpc/ptrace: run seccomp after ptrace
Date: Thu,  9 Jun 2016 14:02:02 -0700
Lines: 91
Approved: news@gmane.org
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Cc: Kees Cook <keescook@chromium.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	linuxppc-dev@lists.ozlabs.org, Andy Lutomirski <luto@kernel.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
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	Jeff Dike <jdike@addtoit.com>, linux-arch@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-mips@linux-mips.org,
	linux-parisc@vger.kernel.org, linux-s390@vger.kernel.org,
	"Maciej W. Rozycki" <macro@imgtec.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Richard Weinberger <richard@nod.at>,
	Russell King <linux@armlinux.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2240085>

Close the hole where ptrace can change a syscall out from under seccomp.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
---
 arch/powerpc/kernel/ptrace.c | 44 +++++++++++++++++++++++---------------------
 1 file changed, 23 insertions(+), 21 deletions(-)

diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index ed799e994773..5dc47ebb3840 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -1788,7 +1788,7 @@ static int do_seccomp(struct pt_regs *regs)
 
 	/*
 	 * The syscall was allowed by seccomp, restore the register
-	 * state to what ptrace and audit expect.
+	 * state to what audit expects.
 	 * Note that we use orig_gpr3, which means a seccomp tracer can
 	 * modify the first syscall parameter (in orig_gpr3) and also
 	 * allow the syscall to proceed.
@@ -1822,22 +1822,25 @@ static inline int do_seccomp(struct pt_regs *regs) { return 0; }
  */
 long do_syscall_trace_enter(struct pt_regs *regs)
 {
-	bool abort = false;
-
 	user_exit();
 
+	/*
+	 * The tracer may decide to abort the syscall, if so tracehook
+	 * will return !0. Note that the tracer may also just change
+	 * regs->gpr[0] to an invalid syscall number, that is handled
+	 * below on the exit path.
+	 */
+	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
+	    tracehook_report_syscall_entry(regs))
+		goto skip;
+
+	/* Run seccomp after ptrace; allow it to set gpr[3]. */
 	if (do_seccomp(regs))
 		return -1;
 
-	if (test_thread_flag(TIF_SYSCALL_TRACE)) {
-		/*
-		 * The tracer may decide to abort the syscall, if so tracehook
-		 * will return !0. Note that the tracer may also just change
-		 * regs->gpr[0] to an invalid syscall number, that is handled
-		 * below on the exit path.
-		 */
-		abort = tracehook_report_syscall_entry(regs) != 0;
-	}
+	/* Avoid trace and audit when syscall is invalid. */
+	if (regs->gpr[0] >= NR_syscalls)
+		goto skip;
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->gpr[0]);
@@ -1854,17 +1857,16 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 				    regs->gpr[5] & 0xffffffff,
 				    regs->gpr[6] & 0xffffffff);
 
-	if (abort || regs->gpr[0] >= NR_syscalls) {
-		/*
-		 * If we are aborting explicitly, or if the syscall number is
-		 * now invalid, set the return value to -ENOSYS.
-		 */
-		regs->gpr[3] = -ENOSYS;
-		return -1;
-	}
-
 	/* Return the possibly modified but valid syscall number */
 	return regs->gpr[0];
+
+skip:
+	/*
+	 * If we are aborting explicitly, or if the syscall number is
+	 * now invalid, set the return value to -ENOSYS.
+	 */
+	regs->gpr[3] = -ENOSYS;
+	return -1;
 }
 
 void do_syscall_trace_leave(struct pt_regs *regs)
-- 
2.7.4



From - Thu Nov 08 21:39:00 2018
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X-Mozilla-Keys:                                                                                 
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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.uml.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel
Subject: [PATCH 14/14] um/ptrace: run seccomp after ptrace
Date: Thu,  9 Jun 2016 14:02:04 -0700
Lines: 46
Approved: news@gmane.org
Message-ID: <1465506124-21866-15-git-send-email-keescook@chromium.org>
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Cc: Kees Cook <keescook@chromium.org>, Jeff Dike <jdike@addtoit.com>,
	Richard Weinberger <richard@nod.at>,
	user-mode-linux-devel@lists.sourceforge.net,
	Andy Lutomirski <luto@kernel.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Chris Metcalf <cmetcalf@mellanox.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	James Hogan <james.hogan@imgtec.com>,
	linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-mips@linux-mips.org, linux-parisc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org,
	"Maciej W. Rozycki" <macro@imgtec.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Paul Mackerras <paulus@samba.org>,
	Ralf Baechle <ralf@linu
To: linux-kernel@vger.kernel.org
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Xref: news.gmane.org gmane.linux.ports.parisc:26860 gmane.linux.kernel:2240087 gmane.linux.uml.devel:15889 gmane.linux.kernel.cross-arch:32358 gmane.linux.ports.arm.kernel:505739 gmane.linux.ports.mips.general:55131 gmane.linux.ports.ppc64.devel:128384
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26860>

Close the hole where ptrace can change a syscall out from under seccomp.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: user-mode-linux-devel@lists.sourceforge.net
---
 arch/um/kernel/skas/syscall.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/um/kernel/skas/syscall.c b/arch/um/kernel/skas/syscall.c
index 9c5570f0f397..ef4b8f949b51 100644
--- a/arch/um/kernel/skas/syscall.c
+++ b/arch/um/kernel/skas/syscall.c
@@ -20,12 +20,12 @@ void handle_syscall(struct uml_pt_regs *r)
 	UPT_SYSCALL_NR(r) = PT_SYSCALL_NR(r->gp);
 	PT_REGS_SET_SYSCALL_RETURN(regs, -ENOSYS);
 
-	/* Do the secure computing check first; failures should be fast. */
-	if (secure_computing(NULL) == -1)
+	if (syscall_trace_enter(regs))
 		return;
 
-	if (syscall_trace_enter(regs))
-		goto out;
+	/* Do the seccomp check after ptrace; failures should be fast. */
+	if (secure_computing(NULL) == -1)
+		return;
 
 	/* Update the syscall number after orig_ax has potentially been updated
 	 * with ptrace.
@@ -37,6 +37,5 @@ void handle_syscall(struct uml_pt_regs *r)
 		PT_REGS_SET_SYSCALL_RETURN(regs,
 				EXECUTE_SYSCALL(syscall, regs));
 
-out:
 	syscall_trace_leave(regs);
 }
-- 
2.7.4

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From - Thu Nov 08 21:39:00 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 11/14] s390/ptrace: run seccomp after ptrace
Date: Thu,  9 Jun 2016 14:02:01 -0700
Lines: 58
Approved: news@gmane.org
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Cc: Mark Rutland <mark.rutland@arm.com>, linux-mips@linux-mips.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
 Russell King <linux@armlinux.org.uk>, Paul Mackerras <paulus@samba.org>,
 Chris Metcalf <cmetcalf@mellanox.com>, linux-arch@vger.kernel.org,
 linux-s390@vger.kernel.org, Michael Ellerman <mpe@ellerman.id.au>,
 Helge Deller <deller@gmx.de>, x86@kernel.org,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 Catalin Marinas <catalin.marinas@arm.com>,
 James Hogan <james.hogan@imgtec.com>, Kees Cook <keescook@chromium.org>,
 user-mode-linux-devel@lists.sourceforge.net, Will Deacon <will.deacon@arm.com>,
 Jeff Dike <jdike@addtoit.com>, Andy Lutomirski <luto@kernel.org>,
 linux-arm-kernel@lists.infradead.org, linux-parisc@vger.kernel.org,
 Ralf Baechle <ralf@linux-mips.org>, Richard Weinberger <richard@nod.at>,
 Martin Schwidefsky
To: linux-kernel@vger.kernel.org
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Xref: news.gmane.org gmane.linux.ports.arm.kernel:505740 gmane.linux.kernel:2240088 gmane.linux.ports.mips.general:55132 gmane.linux.kernel.cross-arch:32359 gmane.linux.uml.devel:15890 gmane.linux.ports.parisc:26861 gmane.linux.ports.ppc64.devel:128385
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/505740>

Close the hole where ptrace can change a syscall out from under seccomp.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: linux-s390@vger.kernel.org
---
 arch/s390/kernel/ptrace.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index c238e9958c2a..cea17010448f 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -821,15 +821,6 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 
 asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 {
-	long ret = 0;
-
-	/* Do the secure computing check first. */
-	if (secure_computing(NULL)) {
-		/* seccomp failures shouldn't expose any additional code. */
-		ret = -1;
-		goto out;
-	}
-
 	/*
 	 * The sysc_tracesys code in entry.S stored the system
 	 * call number to gprs[2].
@@ -843,7 +834,13 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 		 * the system call and the system call restart handling.
 		 */
 		clear_pt_regs_flag(regs, PIF_SYSCALL);
-		ret = -1;
+		return -1;
+	}
+
+	/* Do the secure computing check after ptrace. */
+	if (secure_computing(NULL)) {
+		/* seccomp failures shouldn't expose any additional code. */
+		return -1;
 	}
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
@@ -852,8 +849,8 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 	audit_syscall_entry(regs->gprs[2], regs->orig_gpr2,
 			    regs->gprs[3], regs->gprs[4],
 			    regs->gprs[5]);
-out:
-	return ret ?: regs->gprs[2];
+
+	return regs->gprs[2];
 }
 
 asmlinkage void do_syscall_trace_exit(struct pt_regs *regs)
-- 
2.7.4

From - Thu Nov 08 21:39:00 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.uml.devel
Subject: [PATCH 09/14] MIPS/ptrace: run seccomp after ptrace
Date: Thu,  9 Jun 2016 14:01:59 -0700
Lines: 26
Approved: news@gmane.org
Message-ID: <1465506124-21866-10-git-send-email-keescook@chromium.org>
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Cc: Kees Cook <keescook@chromium.org>,
	Ralf Baechle <ralf@linux-mips.org>,
	"Maciej W. Rozycki" <macro@imgtec.com>,
	James Hogan <james.hogan@imgtec.com>,
	linux-mips@linux-mips.org, Andy Lutomirski <luto@kernel.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Chris Metcalf <cmetcalf@mellanox.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Jeff Dike <jdike@addtoit.com>, linux-arch@vger.kernel.org,
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	Mark Rutland <mark.rutland@arm.com>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Paul Mackerras <paulus@samba.org>,
	Richard Weinberger <richard@nod.at>,
	Russell King <linux@armlinux.org
To: linux-kernel@vger.kernel.org
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Xref: news.gmane.org gmane.linux.ports.parisc:26862 gmane.linux.kernel:2240089 gmane.linux.ports.mips.general:55133 gmane.linux.kernel.cross-arch:32360 gmane.linux.ports.arm.kernel:505741 gmane.linux.ports.ppc64.devel:128386 gmane.linux.uml.devel:15891
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26862>

Close the hole where ptrace can change a syscall out from under seccomp.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: "Maciej W. Rozycki" <macro@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
---
 arch/mips/kernel/ptrace.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index c50af846ecf9..6103b24d1bfc 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -888,17 +888,16 @@ long arch_ptrace(struct task_struct *child, long request,
  */
 asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall)
 {
-	long ret = 0;
 	user_exit();
 
 	current_thread_info()->syscall = syscall;
 
-	if (secure_computing(NULL) == -1)
-		return -1;

From - Thu Nov 08 21:39:00 2018
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X-Mozilla-Keys:                                                                                 
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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 10/14] parisc/ptrace: run seccomp after ptrace
Date: Thu,  9 Jun 2016 14:02:00 -0700
Lines: 39
Approved: news@gmane.org
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Cc: Mark Rutland <mark.rutland@arm.com>, linux-mips@linux-mips.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
 Russell King <linux@armlinux.org.uk>, Paul Mackerras <paulus@samba.org>,
 Chris Metcalf <cmetcalf@mellanox.com>, linux-arch@vger.kernel.org,
 linux-s390@vger.kernel.org, Michael Ellerman <mpe@ellerman.id.au>,
 Helge Deller <deller@gmx.de>, x86@kernel.org,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 Catalin Marinas <catalin.marinas@arm.com>,
 James Hogan <james.hogan@imgtec.com>, Kees Cook <keescook@chromium.org>,
 user-mode-linux-devel@lists.sourceforge.net, Will Deacon <will.deacon@arm.com>,
 Jeff Dike <jdike@addtoit.com>, Andy Lutomirski <luto@kernel.org>,
 linux-arm-kernel@lists.infradead.org, linux-parisc@vger.kernel.org,
 Ralf Baechle <ralf@linux-mips.org>, Richard Weinberger <richard@nod.at>,
 Martin Schwidefsky
To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/505742>

Close the hole where ptrace can change a syscall out from under seccomp.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/ptrace.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 8edc47c0b98e..e02d7b4d2b69 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -311,10 +311,6 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 
 long do_syscall_trace_enter(struct pt_regs *regs)
 {
-	/* Do the secure computing check first. */
-	if (secure_computing(NULL) == -1)
-		return -1;
-
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
 	    tracehook_report_syscall_entry(regs)) {
 		/*
@@ -325,6 +321,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 		regs->gr[20] = -1UL;
 		goto out;
 	}
+
+	/* Do the secure computing check after ptrace. */
+	if (secure_computing(NULL) == -1)
+		return -1;
+
 #ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->gr[20]);
-- 
2.7.4

From - Thu Nov 08 21:39:01 2018
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X-Mozilla-Keys:                                                                                 
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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.uml.devel
Subject: [PATCH 04/14] seccomp: remove 2-phase API
Date: Thu,  9 Jun 2016 14:01:54 -0700
Lines: 213
Approved: news@gmane.org
Message-ID: <1465506124-21866-5-git-send-email-keescook@chromium.org>
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Cc: Kees Cook <keescook@chromium.org>,
	Andy Lutomirski <luto@kernel.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Chris Metcalf <cmetcalf@mellanox.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Helge Deller <deller@gmx.de>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	James Hogan <james.hogan@imgtec.com>,
	Jeff Dike <jdike@addtoit.com>, linux-arch@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-mips@linux-mips.org,
	linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-s390@vger.kernel.org, "Maciej W. Rozycki" <macro@imgtec.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Paul Mackerras <paulus@samba.org>,
	Ralf Baechle <ralf@linux-mips.org>,
	Richard Weinberger <richard@nod.at>,
	Russell King <linux@armlinux.org
To: linux-kernel@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel:2240091 gmane.linux.kernel.cross-arch:32362 gmane.linux.ports.arm.kernel:505743 gmane.linux.ports.mips.general:55135 gmane.linux.ports.parisc:26864 gmane.linux.ports.ppc64.devel:128388 gmane.linux.uml.devel:15893
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2240091>

Since nothing is using the 2-phase API, and it adds more complexity than
benefit, remove it.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@kernel.org>
---
 include/linux/seccomp.h |   6 ---
 kernel/seccomp.c        | 129 +++++++++++++++---------------------------------
 2 files changed, 41 insertions(+), 94 deletions(-)

diff --git a/include/linux/seccomp.h b/include/linux/seccomp.h
index 9eaa7b34d6da..ecc296c137cd 100644
--- a/include/linux/seccomp.h
+++ b/include/linux/seccomp.h
@@ -35,12 +35,6 @@ static inline int secure_computing(const struct seccomp_data *sd)
 		return  __secure_computing(sd);
 	return 0;
 }
-
-#define SECCOMP_PHASE1_OK	0
-#define SECCOMP_PHASE1_SKIP	1
-
-extern u32 seccomp_phase1(struct seccomp_data *sd);
-int seccomp_phase2(u32 phase1_result);
 #else
 extern void secure_computing_strict(int this_syscall);
 #endif
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index 06816290a212..14a37d71b612 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -173,7 +173,7 @@ static int seccomp_check_filter(struct sock_filter *filter, unsigned int flen)
  *
  * Returns valid seccomp BPF response codes.
  */
-static u32 seccomp_run_filters(struct seccomp_data *sd)
+static u32 seccomp_run_filters(const struct seccomp_data *sd)
 {
 	struct seccomp_data sd_local;
 	u32 ret = SECCOMP_RET_ALLOW;
@@ -554,20 +554,9 @@ void secure_computing_strict(int this_syscall)
 		BUG();
 }
 #else
-int __secure_computing(const struct seccomp_data *sd)
-{
-	u32 phase1_result = seccomp_phase1(sd);
-
-	if (likely(phase1_result == SECCOMP_PHASE1_OK))
-		return 0;
-	else if (likely(phase1_result == SECCOMP_PHASE1_SKIP))
-		return -1;
-	else
-		return seccomp_phase2(phase1_result);
-}
 
 #ifdef CONFIG_SECCOMP_FILTER
-static u32 __seccomp_phase1_filter(int this_syscall, struct seccomp_data *sd)
+static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd)
 {
 	u32 filter_ret, action;
 	int data;
@@ -599,10 +588,33 @@ static u32 __seccomp_phase1_filter(int this_syscall, struct seccomp_data *sd)
 		goto skip;
 
 	case SECCOMP_RET_TRACE:
-		return filter_ret;  /* Save the rest for phase 2. */
+		/* ENOSYS these calls if there is no tracer attached. */
+		if (!ptrace_event_enabled(current, PTRACE_EVENT_SECCOMP)) {
+			syscall_set_return_value(current,
+						 task_pt_regs(current),
+						 -ENOSYS, 0);
+			goto skip;
+		}
+
+		/* Allow the BPF to provide the event message */
+		ptrace_event(PTRACE_EVENT_SECCOMP, data);
+		/*
+		 * The delivery of a fatal signal during event
+		 * notification may silently skip tracer notification.
+		 * Terminating the task now avoids executing a system
+		 * call that may not be intended.
+		 */
+		if (fatal_signal_pending(current))
+			do_exit(SIGSYS);
+		/* Check if the tracer forced the syscall to be skipped. */
+		this_syscall = syscall_get_nr(current, task_pt_regs(current));
+		if (this_syscall < 0)
+			goto skip;
+
+		return 0;
 
 	case SECCOMP_RET_ALLOW:
-		return SECCOMP_PHASE1_OK;
+		return 0;
 
 	case SECCOMP_RET_KILL:
 	default:
@@ -614,96 +626,37 @@ static u32 __seccomp_phase1_filter(int this_syscall, struct seccomp_data *sd)
 
 skip:
 	audit_seccomp(this_syscall, 0, action);
-	return SECCOMP_PHASE1_SKIP;
+	return -1;
+}
+#else
+static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd)
+{
+	BUG();
 }
 #endif
 
-/**
- * seccomp_phase1() - run fast path seccomp checks on the current syscall
- * @arg sd: The seccomp_data or NULL
- *
- * This only reads pt_regs via the syscall_xyz helpers.  The only change
- * it will make to pt_regs is via syscall_set_return_value, and it will
- * only do that if it returns SECCOMP_PHASE1_SKIP.
- *
- * If sd is provided, it will not read pt_regs at all.
- *
- * It may also call do_exit or force a signal; these actions must be
- * safe.
- *
- * If it returns SECCOMP_PHASE1_OK, the syscall passes checks and should
- * be processed normally.
- *
- * If it returns SECCOMP_PHASE1_SKIP, then the syscall should not be
- * invoked.  In this case, seccomp_phase1 will have set the return value
- * using syscall_set_return_value.
- *
- * If it returns anything else, then the return value should be passed
- * to seccomp_phase2 from a context in which ptrace hooks are safe.
- */
-u32 seccomp_phase1(struct seccomp_data *sd)
+int __secure_computing(const struct seccomp_data *sd)
 {
 	int mode = current->seccomp.mode;
-	int this_syscall = sd ? sd->nr :
-		syscall_get_nr(current, task_pt_regs(current));
+	int this_syscall;
 
 	if (config_enabled(CONFIG_CHECKPOINT_RESTORE) &&
 	    unlikely(current->ptrace & PT_SUSPEND_SECCOMP))
-		return SECCOMP_PHASE1_OK;
+		return 0;
+
+	this_syscall = sd ? sd->nr :
+		syscall_get_nr(current, task_pt_regs(current));
 
 	switch (mode) {
 	case SECCOMP_MODE_STRICT:
 		__secure_computing_strict(this_syscall);  /* may call do_exit */
-		return SECCOMP_PHASE1_OK;
-#ifdef CONFIG_SECCOMP_FILTER
+		return 0;
 	case SECCOMP_MODE_FILTER:
-		return __seccomp_phase1_filter(this_syscall, sd);
-#endif
+		return __seccomp_filter(this_syscall, sd);
 	default:
 		BUG();
 	}
 }
-
-/**
- * seccomp_phase2() - finish slow path seccomp work for the current syscall
- * @phase1_result: The return value from seccomp_phase1()
- *
- * This must be called from a context in which ptrace hooks can be used.
- *
- * Returns 0 if the syscall should be processed or -1 to skip the syscall.
- */
-int seccomp_phase2(u32 phase1_result)
-{
-	struct pt_regs *regs = task_pt_regs(current);
-	u32 action = phase1_result & SECCOMP_RET_ACTION;
-	int data = phase1_result & SECCOMP_RET_DATA;
-
-	BUG_ON(action != SECCOMP_RET_TRACE);
-
-	audit_seccomp(syscall_get_nr(current, regs), 0, action);
-
-	/* Skip these calls if there is no tracer. */
-	if (!ptrace_event_enabled(current, PTRACE_EVENT_SECCOMP)) {
-		syscall_set_return_value(current, regs,
-					 -ENOSYS, 0);
-		return -1;
-	}
-
-	/* Allow the BPF to provide the event message */
-	ptrace_event(PTRACE_EVENT_SECCOMP, data);
-	/*
-	 * The delivery of a fatal signal during event
-	 * notification may silently skip tracer notification.
-	 * Terminating the task now avoids executing a system
-	 * call that may not be intended.
-	 */
-	if (fatal_signal_pending(current))
-		do_exit(SIGSYS);
-	if (syscall_get_nr(current, regs) < 0)
-		return -1;  /* Explicit request to skip. */
-
-	return 0;
-}
 #endif /* CONFIG_HAVE_ARCH_SECCOMP_FILTER */
 
 long prctl_get_seccomp(void)
-- 
2.7.4



From - Thu Nov 08 21:39:01 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 06/14] x86/ptrace: run seccomp after ptrace
Date: Thu,  9 Jun 2016 14:01:56 -0700
Lines: 66
Approved: news@gmane.org
Message-ID: <1465506124-21866-7-git-send-email-keescook@chromium.org>
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Cc: Mark Rutland <mark.rutland@arm.com>, linux-mips@linux-mips.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
 Russell King <linux@armlinux.org.uk>, Paul Mackerras <paulus@samba.org>,
 Kees Cook <keescook@chromium.org>, linux-arch@vger.kernel.org,
 linux-s390@vger.kernel.org, Michael Ellerman <mpe@ellerman.id.au>,
 Helge Deller <deller@gmx.de>, x86@kernel.org,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 Catalin Marinas <catalin.marinas@arm.com>,
 James Hogan <james.hogan@imgtec.com>, Chris Metcalf <cmetcalf@mellanox.com>,
 user-mode-linux-devel@lists.sourceforge.net, Will Deacon <will.deacon@arm.com>,
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 Ralf Baechle <ralf@linux-mips.org>, Richard Weinberger <richard@nod.at>,
 Martin Schwidefsky
To: linux-kernel@vger.kernel.org
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Xref: news.gmane.org gmane.linux.ports.arm.kernel:505744 gmane.linux.kernel:2240093 gmane.linux.ports.mips.general:55136 gmane.linux.kernel.cross-arch:32363 gmane.linux.uml.devel:15894 gmane.linux.ports.parisc:26865 gmane.linux.ports.ppc64.devel:128389
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/505744>

This moves seccomp after ptrace on x86 to that seccomp can catch changes
made by ptrace. Emulation should skip the rest of processing too.

We can get rid of test_thread_flag because there's no longer any
opportunity for seccomp to mess with ptrace state before invoking
ptrace.

Suggested-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: x86@kernel.org
Cc: Andy Lutomirski <luto@kernel.org>
---
 arch/x86/entry/common.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index df56ca394877..81c0e12d831c 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -73,6 +73,7 @@ static long syscall_trace_enter(struct pt_regs *regs)
 
 	struct thread_info *ti = pt_regs_to_thread_info(regs);
 	unsigned long ret = 0;
+	bool emulated = false;
 	u32 work;
 
 	if (IS_ENABLED(CONFIG_DEBUG_ENTRY))
@@ -80,11 +81,19 @@ static long syscall_trace_enter(struct pt_regs *regs)
 
 	work = ACCESS_ONCE(ti->flags) & _TIF_WORK_SYSCALL_ENTRY;
 
+	if (unlikely(work & _TIF_SYSCALL_EMU))
+		emulated = true;
+
+	if ((emulated || (work & _TIF_SYSCALL_TRACE)) &&
+	    tracehook_report_syscall_entry(regs))
+		return -1L;
+
+	if (emulated)
+		return -1L;
+
 #ifdef CONFIG_SECCOMP
 	/*
-	 * Do seccomp first -- it should minimize exposure of other
-	 * code, and keeping seccomp fast is probably more valuable
-	 * than the rest of this.
+	 * Do seccomp after ptrace, to catch any tracer changes.
 	 */
 	if (work & _TIF_SECCOMP) {
 		struct seccomp_data sd;
@@ -117,13 +126,6 @@ static long syscall_trace_enter(struct pt_regs *regs)
 	}
 #endif
 
-	if (unlikely(work & _TIF_SYSCALL_EMU))
-		ret = -1L;
-
-	if ((ret || test_thread_flag(TIF_SYSCALL_TRACE)) &&
-	    tracehook_report_syscall_entry(regs))
-		ret = -1L;
-
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->orig_ax);
 
-- 
2.7.4

From - Thu Nov 08 21:39:01 2018
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X-Mozilla-Keys:                                                                                 
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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 13/14] tile/ptrace: run seccomp after ptrace
Date: Thu,  9 Jun 2016 14:02:03 -0700
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Cc: Mark Rutland <mark.rutland@arm.com>, linux-mips@linux-mips.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
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Xref: news.gmane.org gmane.linux.ports.arm.kernel:505745 gmane.linux.kernel:2240094 gmane.linux.ports.mips.general:55137 gmane.linux.kernel.cross-arch:32364 gmane.linux.uml.devel:15895 gmane.linux.ports.parisc:26866 gmane.linux.ports.ppc64.devel:128390
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/505745>

Close the hole where ptrace can change a syscall out from under seccomp.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
---
 arch/tile/kernel/ptrace.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/arch/tile/kernel/ptrace.c b/arch/tile/kernel/ptrace.c
index 8c6d2f2fefa3..d89b7011667c 100644
--- a/arch/tile/kernel/ptrace.c
+++ b/arch/tile/kernel/ptrace.c
@@ -255,14 +255,15 @@ int do_syscall_trace_enter(struct pt_regs *regs)
 {
 	u32 work = ACCESS_ONCE(current_thread_info()->flags);
 
-	if (secure_computing(NULL) == -1)
+	if ((work & _TIF_SYSCALL_TRACE) &&
+	    tracehook_report_syscall_entry(regs)) {
+		regs->regs[TREG_SYSCALL_NR] = -1;
 		return -1;
-
-	if (work & _TIF_SYSCALL_TRACE) {
-		if (tracehook_report_syscall_entry(regs))
-			regs->regs[TREG_SYSCALL_NR] = -1;
 	}
 
+	if (secure_computing(NULL) == -1)
+		return -1;
+
 	if (work & _TIF_SYSCALL_TRACEPOINT)
 		trace_sys_enter(regs, regs->regs[TREG_SYSCALL_NR]);
 
-- 
2.7.4

From - Thu Nov 08 21:39:01 2018
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X-Mozilla-Keys:                                                                                 
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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.uml.devel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 08/14] arm64/ptrace: run seccomp after ptrace
Date: Thu,  9 Jun 2016 14:01:58 -0700
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Cc: Mark Rutland <mark.rutland@arm.com>, linux-mips@linux-mips.org,
 Catalin Marinas <catalin.marinas@arm.com>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/505746>

Close the hole where ptrace can change a syscall out from under seccomp.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
---
 arch/arm64/kernel/ptrace.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index 6e2cf046615d..602316c97a47 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -1246,13 +1246,13 @@ static void tracehook_report_syscall(struct pt_regs *regs,
 
 asmlinkage int syscall_trace_enter(struct pt_regs *regs)
 {
-	/* Do the secure computing check first; failures should be fast. */
-	if (secure_computing(NULL) == -1)
-		return -1;
-
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall(regs, PTRACE_SYSCALL_ENTER);
 
+	/* Do the secure computing after ptrace; failures should be fast. */
+	if (secure_computing(NULL) == -1)
+		return -1;
+
 	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
 		trace_sys_enter(regs, regs->syscallno);
 
-- 
2.7.4

From - Thu Nov 08 21:39:01 2018
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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.uml.devel
Subject: [PATCH 07/14] arm/ptrace: run seccomp after ptrace
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Cc: Kees Cook <keescook@chromium.org>,
	Russell King <linux@armlinux.org.uk>,
	linux-arm-kernel@lists.infradead.org,
	Andy Lutomirski <luto@kernel.org>,
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	Helge Deller <deller@gmx.de>,
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	Ralf Baechle <ralf@linux-mips.org>,
	Richard Weinberger <richard@no
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2240096>

Close the hole where ptrace can change a syscall out from under seccomp.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
---
 arch/arm/kernel/ptrace.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index ad5e90ab165c..dc7b372872ff 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -932,18 +932,19 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno)
 {
 	current_thread_info()->syscall = scno;
 
-	/* Do the secure computing check first; failures should be fast. */
+	if (test_thread_flag(TIF_SYSCALL_TRACE))
+		tracehook_report_syscall(regs, PTRACE_SYSCALL_ENTER);
+
+	/* Do seccomp after ptrace; syscall may have changed. */
 #ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
 	if (secure_computing(NULL) == -1)
 		return -1;
 #else
 	/* XXX: remove this once OABI gets fixed */
-	secure_computing_strict(scno);
+	secure_computing_strict(current_thread_info()->syscall);
 #endif
 
-	if (test_thread_flag(TIF_SYSCALL_TRACE))
-		tracehook_report_syscall(regs, PTRACE_SYSCALL_ENTER);
-
+	/* Tracer or seccomp may have changed syscall. */
 	scno = current_thread_info()->syscall;
 
 	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
-- 
2.7.4



From - Thu Nov 08 21:39:01 2018
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X-Mozilla-Keys:                                                                                 
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: Re: kernel BUG in drivers/scsi/53c700.c:1129
Date: Thu, 09 Jun 2016 15:23:22 -0700
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On Thu, 2016-06-09 at 21:36 +0200, Helge Deller wrote:
> Hi James,
> 
> I just tried Debian kernel 4.6.1-1 on my historic 715/64 machine, and it
> ran into this  BUG() in the LASI scsi driver:
> 
>  scsi 0:0:6:0: no saved request for untagged cmd
> 
> Any idea?
> 
> Helge
>  
> [    0.000000] Linux version 4.6.0-1-parisc (debian-kernel@lists.debian.org) (gcc version 5.4.0 20160603 (Debian 5.4.0-3) ) #1 Debian 4.6.1-1 (2016-06-06)
> ...
> [    0.000000] Determining PDC firmware type: Snake.
> [    0.000000] model 000060a0 00000481 00000000 00000000 773c7d2c 00000000 00000004 00000072 00000072
> [    0.000000] vers  0000000c
> [    0.000000] model 9000/715
> [    0.000000] Total Memory: 160 MB
> ...
> [   43.180000] SCSI subsystem initialized
> [   45.076000] 53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
> [   45.156000] scsi0: 53c710 rev 2 
> [   46.204000] scsi host0: LASI SCSI 53c700
> [   58.268000] scsi 0:0:6:0: no saved request for untagged cmd
> [   58.336000] ------------[ cut here ]------------
> [   58.392000] kernel BUG at /build/linux-XAODSw/linux-4.6.1/drivers/scsi/53c700.c:1129!
> [   58.484000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-1-parisc #1 Debian 4.6.1-1
> [   58.580000] task: 1083cdd8 ti: 107b1000 task.ti: 107b1000
> [   58.644000] 
> [   58.660000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [   58.716000] PSW: 00000000000001001111111100001110 Not tainted
> [   58.788000] r00-03  0004ff0e 0084e388 00a8ea8c 107ba400
> [   58.848000] r04-07  00000000 00000000 15b88cc0 00000006
> [   58.912000] r08-11  198ca400 000000ff 00000020 00000000
> [   58.976000] r12-15  000000ff 00001003 10801020 00000001
> [   59.036000] r16-19  107b1240 00000002 000000ff 00000001
> [   59.100000] r20-23  00000001 0000000e 0084f388 00000000
> [   59.164000] r24-27  107ba500 0083b540 1021a7a4 107b5020
> [   59.224000] r28-31  00000000 00000040 107ba480 104d52bc
> [   59.288000] sr00-03  00000000 00000000 00000000 0000000d
> [   59.352000] sr04-07  00000000 00000000 00000000 00000000
> [   59.416000] 
> [   59.432000] IASQ: 00000000 00000000 IAOQ: 00a8ea8c 00a8ea90
> [   59.500000]  IIR: 03ffe01f    ISR: 0000000d  IOR: 00a8ea90
> [   59.564000]  CPU:        0   CR30: 107b1000 CR31: f00effff
> [   59.632000]  ORIG_R28: 10855e80
> [   59.668000]  IAOQ[0]: process_script_interrupt+0x13ec/0x16a4 [53c700]
> [   59.748000]  IAOQ[1]: process_script_interrupt+0x13f0/0x16a4 [53c700]
> [   59.824000]  RP(r2): process_script_interrupt+0x13ec/0x16a4 [53c700]
> [   59.900000] Backtrace:
> [   59.928000]  [<00a8ea8c>] process_script_interrupt+0x13ec/0x16a4 [53c700]
> [   60.012000] 
> [   60.028000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-1-parisc #1 Debian 4.6.1-1
> [   60.120000] Backtrace:
> [   60.148000]  [<1015bffc>] show_stack+0x3c/0x50
> [   60.204000]  [<10425d40>] dump_stack+0x28/0x38
> [   60.256000]  [<1015c180>] die_if_kernel+0x134/0x20c
> [   60.316000]  [<1015cd34>] handle_interruption+0x804/0x828
> [   60.380000] 
> [   60.400000] Kernel panic - not syncing: Fatal exception in interrupt
> [   60.400000] ---[ end Kernel panic - not syncing: Fatal exception in interrupt

It looks like either an unsolicited reselection or possibly a spurious
interrupt left over from something.  Can you define NCR_700_DEBUG in
drivers/scsi/53c700.h and see what it says?

Thanks,

James


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From - Thu Nov 08 21:39:01 2018
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From: Yinghai Lu <yinghai@kernel.org>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.pci,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel
Subject: Re: [PATCH v12 01/15] PCI: Let pci_mmap_page_range() take extra
 resource pointer
Date: Thu, 9 Jun 2016 15:36:35 -0700
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To: Bjorn Helgaas <helgaas@kernel.org>
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Xref: news.gmane.org gmane.linux.ports.sparc:23059 gmane.linux.kernel.pci:52518 gmane.linux.kernel:2240353 gmane.linux.ports.arm.kernel:505774 gmane.linux.ports.ia64:26869 gmane.linux.ports.mips.general:55168 gmane.linux.ports.parisc:26870 gmane.linux.ports.ppc64.devel:128394 gmane.linux.ports.sh.devel:54183
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On Wed, Jun 8, 2016 at 5:00 PM, Yinghai Lu <yinghai@kernel.org> wrote:
> On Wed, Jun 8, 2016 at 3:35 PM, Yinghai Lu <yinghai@kernel.org> wrote:
>
>> At the same time, can you kill __pci_mmap_set_pgprot() for powerpc.
>
> Can you please put your two patches and this attached one into to pci/next?
>
> Then I could send updated PCI: Let pci_mmap_page_range() take resource address.

Thanks for putting those patches in pci/resource branch.

I just re post updated for second patch.

[v12.update2,02/15] PCI: Let pci_mmap_page_range() take resource address
http://patchwork.ozlabs.org/patch/633399/

And the [v12 01/15] is not needed anymore.

patch3 to patch15 should still can be applied to pci/resource without problem.

Thanks

Yinghai
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From - Thu Nov 08 21:39:01 2018
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From: Andy Lutomirski <luto@amacapital.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.uml.devel
Subject: Re: [PATCH 05/14] seccomp: recheck the syscall after RET_TRACE
Date: Thu, 9 Jun 2016 15:46:10 -0700
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Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
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	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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To: Kees Cook <keescook@chromium.org>
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On Thu, Jun 9, 2016 at 2:01 PM, Kees Cook <keescook@chromium.org> wrote:
> When RET_TRACE triggers, a tracer may change a syscall into something that
> should be filtered by seccomp. This re-runs seccomp after a trace event
> to make sure things continue to pass.
>
> Signed-off-by: Kees Cook <keescook@chromium.org>
> Cc: Andy Lutomirski <luto@kernel.org>
> ---
>  kernel/seccomp.c | 21 ++++++++++++++++++---
>  1 file changed, 18 insertions(+), 3 deletions(-)
>
> diff --git a/kernel/seccomp.c b/kernel/seccomp.c
> index 14a37d71b612..54d15eb2b701 100644
> --- a/kernel/seccomp.c
> +++ b/kernel/seccomp.c
> @@ -556,7 +556,8 @@ void secure_computing_strict(int this_syscall)
>  #else
>
>  #ifdef CONFIG_SECCOMP_FILTER
> -static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd)
> +static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd,
> +                           const bool recheck_after_trace)

This patch looks good with one minor nit: I read this as "pass true if
you want to recheck after trace", which is exactly the opposite of how
it works.

--Andy
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From - Thu Nov 08 21:39:01 2018
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From: Andy Lutomirski <luto@amacapital.net>
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Subject: Re: [PATCH 06/14] x86/ptrace: run seccomp after ptrace
Date: Thu, 9 Jun 2016 15:52:04 -0700
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To: Kees Cook <keescook@chromium.org>
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On Thu, Jun 9, 2016 at 2:01 PM, Kees Cook <keescook@chromium.org> wrote:
> This moves seccomp after ptrace on x86 to that seccomp can catch changes
> made by ptrace. Emulation should skip the rest of processing too.
>
> We can get rid of test_thread_flag because there's no longer any
> opportunity for seccomp to mess with ptrace state before invoking
> ptrace.
>
> Suggested-by: Andy Lutomirski <luto@kernel.org>
> Signed-off-by: Kees Cook <keescook@chromium.org>
> Cc: x86@kernel.org
> Cc: Andy Lutomirski <luto@kernel.org>
> ---
>  arch/x86/entry/common.c | 22 ++++++++++++----------
>  1 file changed, 12 insertions(+), 10 deletions(-)
>
> diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
> index df56ca394877..81c0e12d831c 100644
> --- a/arch/x86/entry/common.c
> +++ b/arch/x86/entry/common.c
> @@ -73,6 +73,7 @@ static long syscall_trace_enter(struct pt_regs *regs)
>
>         struct thread_info *ti = pt_regs_to_thread_info(regs);
>         unsigned long ret = 0;
> +       bool emulated = false;
>         u32 work;
>
>         if (IS_ENABLED(CONFIG_DEBUG_ENTRY))
> @@ -80,11 +81,19 @@ static long syscall_trace_enter(struct pt_regs *regs)
>
>         work = ACCESS_ONCE(ti->flags) & _TIF_WORK_SYSCALL_ENTRY;
>
> +       if (unlikely(work & _TIF_SYSCALL_EMU))
> +               emulated = true;
> +
> +       if ((emulated || (work & _TIF_SYSCALL_TRACE)) &&
> +           tracehook_report_syscall_entry(regs))
> +               return -1L;
> +
> +       if (emulated)
> +               return -1L;
> +

I think that this code will result in ptrace-induced skips calling the
audit exit hook but not the audit entry hook.  I don't know whether
this is a problem.  It's also worth making sure that ptracing a
seccomp-skipped syscall calls the exit hook with the right regs.

I suspect it's fine, but I want to think about it a little bit more.

--Andy
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From - Thu Nov 08 21:39:01 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.uml.devel
Subject: Re: [PATCH 06/14] x86/ptrace: run seccomp after ptrace
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Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
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	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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To: Andy Lutomirski <luto@amacapital.net>
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On Thu, Jun 9, 2016 at 3:52 PM, Andy Lutomirski <luto@amacapital.net> wrote:
> On Thu, Jun 9, 2016 at 2:01 PM, Kees Cook <keescook@chromium.org> wrote:
>> This moves seccomp after ptrace on x86 to that seccomp can catch changes
>> made by ptrace. Emulation should skip the rest of processing too.
>>
>> We can get rid of test_thread_flag because there's no longer any
>> opportunity for seccomp to mess with ptrace state before invoking
>> ptrace.
>>
>> Suggested-by: Andy Lutomirski <luto@kernel.org>
>> Signed-off-by: Kees Cook <keescook@chromium.org>
>> Cc: x86@kernel.org
>> Cc: Andy Lutomirski <luto@kernel.org>
>> ---
>>  arch/x86/entry/common.c | 22 ++++++++++++----------
>>  1 file changed, 12 insertions(+), 10 deletions(-)
>>
>> diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
>> index df56ca394877..81c0e12d831c 100644
>> --- a/arch/x86/entry/common.c
>> +++ b/arch/x86/entry/common.c
>> @@ -73,6 +73,7 @@ static long syscall_trace_enter(struct pt_regs *regs)
>>
>>         struct thread_info *ti = pt_regs_to_thread_info(regs);
>>         unsigned long ret = 0;
>> +       bool emulated = false;
>>         u32 work;
>>
>>         if (IS_ENABLED(CONFIG_DEBUG_ENTRY))
>> @@ -80,11 +81,19 @@ static long syscall_trace_enter(struct pt_regs *regs)
>>
>>         work = ACCESS_ONCE(ti->flags) & _TIF_WORK_SYSCALL_ENTRY;
>>
>> +       if (unlikely(work & _TIF_SYSCALL_EMU))
>> +               emulated = true;
>> +
>> +       if ((emulated || (work & _TIF_SYSCALL_TRACE)) &&
>> +           tracehook_report_syscall_entry(regs))
>> +               return -1L;
>> +
>> +       if (emulated)
>> +               return -1L;
>> +
>
> I think that this code will result in ptrace-induced skips calling the
> audit exit hook but not the audit entry hook.  I don't know whether
> this is a problem.  It's also worth making sure that ptracing a
> seccomp-skipped syscall calls the exit hook with the right regs.
>
> I suspect it's fine, but I want to think about it a little bit more.

I don't think this is true, since all architectures already needed to
handle an immediate return from seccomp, so audit shouldn't be touched
on the exit path either.

-Kees

-- 
Kees Cook
Chrome OS & Brillo Security
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From - Thu Nov 08 21:39:01 2018
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From: "George Spelvin" <linux@sciencehorizons.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH v4] parisc: add <asm/hash.h>
Date: 9 Jun 2016 23:23:18 -0400
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Helge Deller wrote:
> Minor issue:
> This line (ARCH_NO_COHERENT) is not yet in Linus' tree.
> I assume you diff'ed against -next or something?
> Maybe you move the "select HAVE_ARCH_HASH" one or two lines up, or
> wait until the other patch went upstream?

No, I'm working against v4.6, and the line is there.
Line 34 of "git show v4.6:arch/parisc/Kconfig".

You pulled my git tree, so you can see what I'm working on top of.

>> +	a += c << 3;		_ASSIGN(b, b << 7+31, "X" (c), "X" (d));
>
> This line produces compiler warnings:

Thanks for catching that.

> So, please add
> Acked-by: Helge Deller <deller@gmx.de>

Done and pushed out to git://ftp.sciencehorizons.net/linux.git hash

Would you like to take it via the PA-RISC tree?  I don't think a
"performance fix" like this is 4.7-rc material (I think it's low-risk,
so I don't object, but I think Linus would) so it has to wait for 4.8
either way.

> THANKS!

You're very welcome.  I really wanted to improve it for *every* platform,
so thank you for your help.  I still haven't heard from the Microblaze
guys.

Getting it down to 10 cycles was a fun micro-optimization challenge.
I'm just annoyed I wasted to much time optimizing for a misunderstanding
of the PA-8800 pipeline.  The large print ("QUAD-ISSUE!") giveth, and
the small print taketh waway.
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From - Thu Nov 08 21:39:01 2018
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From: Stephan Linz <linz@li-pro.net>
Newsgroups: gmane.linux.ide,gmane.linux.leds,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v4 6/7] parisc: use the new LED disk activity trigger
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- platform: rename 'ide-disk' to 'disk-activity'

Signed-off-by: Stephan Linz <linz@li-pro.net>
---
 arch/parisc/configs/generic-32bit_defconfig | 2 +-
 arch/parisc/configs/generic-64bit_defconfig | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig
index 5b04d70..8688ba7 100644
--- a/arch/parisc/configs/generic-32bit_defconfig
+++ b/arch/parisc/configs/generic-32bit_defconfig
@@ -214,7 +214,7 @@ CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_TRIGGERS=y
 CONFIG_LEDS_TRIGGER_TIMER=y
-CONFIG_LEDS_TRIGGER_IDE_DISK=y
+CONFIG_LEDS_TRIGGER_DISK=y
 CONFIG_LEDS_TRIGGER_HEARTBEAT=y
 CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
 CONFIG_DMADEVICES=y
diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig
index e945c08..7e07926 100644
--- a/arch/parisc/configs/generic-64bit_defconfig
+++ b/arch/parisc/configs/generic-64bit_defconfig
@@ -231,7 +231,7 @@ CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_TRIGGERS=y
 CONFIG_LEDS_TRIGGER_TIMER=y
 CONFIG_LEDS_TRIGGER_ONESHOT=y
-CONFIG_LEDS_TRIGGER_IDE_DISK=y
+CONFIG_LEDS_TRIGGER_DISK=y
 CONFIG_LEDS_TRIGGER_HEARTBEAT=m
 CONFIG_LEDS_TRIGGER_BACKLIGHT=m
 CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
-- 
2.8.4

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From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.pci,gmane.comp.video.dri.devel,gmane.linux.kernel.samsung-soc,gmane.linux.ports.arm.mediatek,gmane.linux.ports.arm.msm,gmane.comp.freedesktop.xorg.drivers.freedreno,gmane.comp.freedesktop.xorg.nouveau,gmane.linux.ports.arm.rockchip,gmane.linux.drivers.rdma,gmane.linux.kernel.iommu,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.omap
Subject: [PATCH v4 00/44] dma-mapping: Use unsigned long for dma_attrs
Date: Fri, 10 Jun 2016 12:11:17 +0200
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To: Andrew Morton <akpm@linux-foundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/8746>

Hi,


This is fourth approach for replacing struct dma_attrs with unsigned
long.

The main patch (1/44) doing the change is split into many subpatches
for easier review (2-42).  They should be squashed together when
applying.


*Important:* Patchset is tested on my ARM platforms and *only* build
tested on allyesconfigs: ARM, ARM64, i386, x86_64 and powerpc.
Please kindly provide reviewes and tests for other platforms.

Rebased on next-20160607.

For easier testing the patchset is available here:
repo:   https://github.com/krzk/linux
branch: for-next/dma-attrs-const-v4


Changes since v3
================
1. Collect some acks.
2. Drop wrong patch 1/45 ("powerpc: dma-mapping: Don't hard-code
   the value of DMA_ATTR_WEAK_ORDERING").
3. Minor fix pointed out by Michael Ellerman.


Changes since v2
================
1. Follow Christoph Hellwig's comments (don't use BIT add
   documentation, remove dma_get_attr).


Rationale
=========
The dma-mapping core and the implementations do not change the
DMA attributes passed by pointer.  Thus the pointer can point to const
data.  However the attributes do not have to be a bitfield. Instead
unsigned long will do fine:

1. This is just simpler.  Both in terms of reading the code and setting
   attributes.  Instead of initializing local attributes on the stack
   and passing pointer to it to dma_set_attr(), just set the bits.

2. It brings safeness and checking for const correctness because the
   attributes are passed by value.


Best regards,
Krzysztof


Krzysztof Kozlowski (44):
  dma-mapping: Use unsigned long for dma_attrs
  alpha: dma-mapping: Use unsigned long for dma_attrs
  arc: dma-mapping: Use unsigned long for dma_attrs
  ARM: dma-mapping: Use unsigned long for dma_attrs
  arm64: dma-mapping: Use unsigned long for dma_attrs
  avr32: dma-mapping: Use unsigned long for dma_attrs
  blackfin: dma-mapping: Use unsigned long for dma_attrs
  c6x: dma-mapping: Use unsigned long for dma_attrs
  cris: dma-mapping: Use unsigned long for dma_attrs
  frv: dma-mapping: Use unsigned long for dma_attrs
  drm/exynos: dma-mapping: Use unsigned long for dma_attrs
  drm/mediatek: dma-mapping: Use unsigned long for dma_attrs
  drm/msm: dma-mapping: Use unsigned long for dma_attrs
  drm/nouveau: dma-mapping: Use unsigned long for dma_attrs
  drm/rockship: dma-mapping: Use unsigned long for dma_attrs
  infiniband: dma-mapping: Use unsigned long for dma_attrs
  iommu: dma-mapping: Use unsigned long for dma_attrs
  [media] dma-mapping: Use unsigned long for dma_attrs
  xen: dma-mapping: Use unsigned long for dma_attrs
  swiotlb: dma-mapping: Use unsigned long for dma_attrs
  powerpc: dma-mapping: Use unsigned long for dma_attrs
  video: dma-mapping: Use unsigned long for dma_attrs
  x86: dma-mapping: Use unsigned long for dma_attrs
  iommu: intel: dma-mapping: Use unsigned long for dma_attrs
  h8300: dma-mapping: Use unsigned long for dma_attrs
  hexagon: dma-mapping: Use unsigned long for dma_attrs
  ia64: dma-mapping: Use unsigned long for dma_attrs
  m68k: dma-mapping: Use unsigned long for dma_attrs
  metag: dma-mapping: Use unsigned long for dma_attrs
  microblaze: dma-mapping: Use unsigned long for dma_attrs
  mips: dma-mapping: Use unsigned long for dma_attrs
  mn10300: dma-mapping: Use unsigned long for dma_attrs
  nios2: dma-mapping: Use unsigned long for dma_attrs
  openrisc: dma-mapping: Use unsigned long for dma_attrs
  parisc: dma-mapping: Use unsigned long for dma_attrs
  misc: mic: dma-mapping: Use unsigned long for dma_attrs
  s390: dma-mapping: Use unsigned long for dma_attrs
  sh: dma-mapping: Use unsigned long for dma_attrs
  sparc: dma-mapping: Use unsigned long for dma_attrs
  tile: dma-mapping: Use unsigned long for dma_attrs
  unicore32: dma-mapping: Use unsigned long for dma_attrs
  xtensa: dma-mapping: Use unsigned long for dma_attrs
  dma-mapping: Remove dma_get_attr
  dma-mapping: Document the DMA attributes next to the declaration

 Documentation/DMA-API.txt                          |  33 +++---
 Documentation/DMA-attributes.txt                   |   2 +-
 arch/alpha/include/asm/dma-mapping.h               |   2 -
 arch/alpha/kernel/pci-noop.c                       |   2 +-
 arch/alpha/kernel/pci_iommu.c                      |  12 +-
 arch/arc/mm/dma.c                                  |  12 +-
 arch/arm/common/dmabounce.c                        |   4 +-
 arch/arm/include/asm/dma-mapping.h                 |  13 +--
 arch/arm/include/asm/xen/page-coherent.h           |  16 +--
 arch/arm/mm/dma-mapping.c                          | 121 ++++++++++---------
 arch/arm/xen/mm.c                                  |   8 +-
 arch/arm64/mm/dma-mapping.c                        |  67 +++++------
 arch/avr32/mm/dma-coherent.c                       |  12 +-
 arch/blackfin/kernel/dma-mapping.c                 |   8 +-
 arch/c6x/include/asm/dma-mapping.h                 |   4 +-
 arch/c6x/kernel/dma.c                              |   9 +-
 arch/c6x/mm/dma-coherent.c                         |   4 +-
 arch/cris/arch-v32/drivers/pci/dma.c               |   9 +-
 arch/frv/mb93090-mb00/pci-dma-nommu.c              |   8 +-
 arch/frv/mb93090-mb00/pci-dma.c                    |   9 +-
 arch/h8300/kernel/dma.c                            |   8 +-
 arch/hexagon/include/asm/dma-mapping.h             |   1 -
 arch/hexagon/kernel/dma.c                          |   8 +-
 arch/ia64/hp/common/sba_iommu.c                    |  22 ++--
 arch/ia64/include/asm/machvec.h                    |   1 -
 arch/ia64/kernel/pci-swiotlb.c                     |   4 +-
 arch/ia64/sn/pci/pci_dma.c                         |  22 ++--
 arch/m68k/kernel/dma.c                             |  12 +-
 arch/metag/kernel/dma.c                            |  16 +--
 arch/microblaze/include/asm/dma-mapping.h          |   1 -
 arch/microblaze/kernel/dma.c                       |  12 +-
 arch/mips/cavium-octeon/dma-octeon.c               |   8 +-
 arch/mips/loongson64/common/dma-swiotlb.c          |  10 +-
 arch/mips/mm/dma-default.c                         |  20 ++--
 arch/mips/netlogic/common/nlm-dma.c                |   4 +-
 arch/mn10300/mm/dma-alloc.c                        |   8 +-
 arch/nios2/mm/dma-mapping.c                        |  12 +-
 arch/openrisc/kernel/dma.c                         |  21 ++--
 arch/parisc/kernel/pci-dma.c                       |  18 +--
 arch/powerpc/include/asm/dma-mapping.h             |   7 +-
 arch/powerpc/include/asm/iommu.h                   |  10 +-
 arch/powerpc/kernel/dma-iommu.c                    |  12 +-
 arch/powerpc/kernel/dma.c                          |  18 +--
 arch/powerpc/kernel/ibmebus.c                      |  12 +-
 arch/powerpc/kernel/iommu.c                        |  12 +-
 arch/powerpc/kernel/vio.c                          |  12 +-
 arch/powerpc/platforms/cell/iommu.c                |  28 ++---
 arch/powerpc/platforms/pasemi/iommu.c              |   2 +-
 arch/powerpc/platforms/powernv/npu-dma.c           |   8 +-
 arch/powerpc/platforms/powernv/pci-ioda.c          |   4 +-
 arch/powerpc/platforms/powernv/pci.c               |   2 +-
 arch/powerpc/platforms/powernv/pci.h               |   2 +-
 arch/powerpc/platforms/ps3/system-bus.c            |  18 +--
 arch/powerpc/platforms/pseries/iommu.c             |   6 +-
 arch/powerpc/sysdev/dart_iommu.c                   |   2 +-
 arch/s390/include/asm/dma-mapping.h                |   1 -
 arch/s390/pci/pci_dma.c                            |  23 ++--
 arch/sh/include/asm/dma-mapping.h                  |   4 +-
 arch/sh/kernel/dma-nommu.c                         |   4 +-
 arch/sh/mm/consistent.c                            |   4 +-
 arch/sparc/kernel/iommu.c                          |  12 +-
 arch/sparc/kernel/ioport.c                         |  24 ++--
 arch/sparc/kernel/pci_sun4v.c                      |  12 +-
 arch/tile/kernel/pci-dma.c                         |  28 ++---
 arch/unicore32/mm/dma-swiotlb.c                    |   4 +-
 arch/x86/include/asm/dma-mapping.h                 |   5 +-
 arch/x86/include/asm/swiotlb.h                     |   4 +-
 arch/x86/include/asm/xen/page-coherent.h           |   9 +-
 arch/x86/kernel/amd_gart_64.c                      |  20 ++--
 arch/x86/kernel/pci-calgary_64.c                   |  14 +--
 arch/x86/kernel/pci-dma.c                          |   4 +-
 arch/x86/kernel/pci-nommu.c                        |   4 +-
 arch/x86/kernel/pci-swiotlb.c                      |   4 +-
 arch/x86/pci/sta2x11-fixup.c                       |   2 +-
 arch/x86/pci/vmd.c                                 |  16 +--
 arch/xtensa/kernel/pci-dma.c                       |  12 +-
 drivers/gpu/drm/exynos/exynos_drm_fbdev.c          |   2 +-
 drivers/gpu/drm/exynos/exynos_drm_g2d.c            |  12 +-
 drivers/gpu/drm/exynos/exynos_drm_gem.c            |  20 ++--
 drivers/gpu/drm/exynos/exynos_drm_gem.h            |   2 +-
 drivers/gpu/drm/mediatek/mtk_drm_gem.c             |  13 +--
 drivers/gpu/drm/mediatek/mtk_drm_gem.h             |   2 +-
 drivers/gpu/drm/msm/msm_drv.c                      |  13 +--
 .../gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c    |  13 +--
 drivers/gpu/drm/rockchip/rockchip_drm_gem.c        |  17 ++-
 drivers/gpu/drm/rockchip/rockchip_drm_gem.h        |   2 +-
 drivers/infiniband/core/umem.c                     |   7 +-
 drivers/iommu/amd_iommu.c                          |  12 +-
 drivers/iommu/dma-iommu.c                          |   8 +-
 drivers/iommu/intel-iommu.c                        |  12 +-
 drivers/media/platform/sti/bdisp/bdisp-hw.c        |  26 ++---
 drivers/media/v4l2-core/videobuf2-dma-contig.c     |  30 ++---
 drivers/media/v4l2-core/videobuf2-dma-sg.c         |  19 +--
 drivers/misc/mic/host/mic_boot.c                   |  20 ++--
 drivers/parisc/ccio-dma.c                          |  16 +--
 drivers/parisc/sba_iommu.c                         |  16 +--
 drivers/video/fbdev/omap2/omapfb/omapfb-main.c     |  12 +-
 drivers/video/fbdev/omap2/omapfb/omapfb.h          |   3 +-
 drivers/xen/swiotlb-xen.c                          |  14 +--
 include/linux/dma-attrs.h                          |  72 ------------
 include/linux/dma-iommu.h                          |   6 +-
 include/linux/dma-mapping.h                        | 128 ++++++++++++++-------
 include/linux/swiotlb.h                            |  10 +-
 include/media/videobuf2-dma-contig.h               |   7 +-
 include/rdma/ib_verbs.h                            |   8 +-
 include/xen/swiotlb-xen.h                          |  12 +-
 lib/dma-noop.c                                     |   9 +-
 lib/swiotlb.c                                      |  13 ++-
 108 files changed, 691 insertions(+), 793 deletions(-)
 delete mode 100644 include/linux/dma-attrs.h

-- 
1.9.1


From - Thu Nov 08 21:39:01 2018
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From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v4 35/44] parisc: dma-mapping: Use unsigned long for dma_attrs
Date: Fri, 10 Jun 2016 12:11:52 +0200
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Approved: news@gmane.org
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Cc: hch@infradead.org, Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>,
	Akinobu Mita <akinobu.mita@gmail.com>,
	linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org
To: Andrew Morton <akpm@linux-foundation.org>
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Xref: news.gmane.org gmane.linux.kernel:2240666 gmane.linux.ports.parisc:26877
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2240666>

Split out subsystem specific changes for easier reviews. This will be
squashed with main commit.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 arch/parisc/kernel/pci-dma.c | 16 ++++++++--------
 drivers/parisc/ccio-dma.c    | 16 ++++++++--------
 drivers/parisc/sba_iommu.c   | 16 ++++++++--------
 3 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index a27e4928bf73..845fdd52e4c5 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -414,7 +414,7 @@ pcxl_dma_init(void)
 __initcall(pcxl_dma_init);
 
 static void *pa11_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
+		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
 {
 	unsigned long vaddr;
 	unsigned long paddr;
@@ -441,7 +441,7 @@ static void *pa11_dma_alloc(struct device *dev, size_t size,
 }
 
 static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t dma_handle, struct dma_attrs *attrs)
+		dma_addr_t dma_handle, unsigned long attrs)
 {
 	int order;
 
@@ -454,7 +454,7 @@ static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
 
 static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
 		unsigned long offset, size_t size,
-		enum dma_data_direction direction, struct dma_attrs *attrs)
+		enum dma_data_direction direction, unsigned long attrs)
 {
 	void *addr = page_address(page) + offset;
 	BUG_ON(direction == DMA_NONE);
@@ -465,7 +465,7 @@ static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
 
 static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 		size_t size, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	BUG_ON(direction == DMA_NONE);
 
@@ -484,7 +484,7 @@ static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 
 static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
 		int nents, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -503,7 +503,7 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
 
 static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 		int nents, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -577,7 +577,7 @@ struct dma_map_ops pcxl_dma_ops = {
 };
 
 static void *pcx_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
+		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
 {
 	void *addr;
 
@@ -592,7 +592,7 @@ static void *pcx_dma_alloc(struct device *dev, size_t size,
 }
 
 static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t iova, struct dma_attrs *attrs)
+		dma_addr_t iova, unsigned long attrs)
 {
 	free_pages((unsigned long)vaddr, get_order(size));
 	return;
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index e24b05996a1b..3ed6238f8f6e 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -790,7 +790,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
 static dma_addr_t
 ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
 		size_t size, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	return ccio_map_single(dev, page_address(page) + offset, size,
 			direction);
@@ -806,7 +806,7 @@ ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
  */
 static void 
 ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
-		enum dma_data_direction direction, struct dma_attrs *attrs)
+		enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 	unsigned long flags; 
@@ -844,7 +844,7 @@ ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
  */
 static void * 
 ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
       void *ret;
 #if 0
@@ -878,9 +878,9 @@ ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
  */
 static void 
 ccio_free(struct device *dev, size_t size, void *cpu_addr,
-		dma_addr_t dma_handle, struct dma_attrs *attrs)
+		dma_addr_t dma_handle, unsigned long attrs)
 {
-	ccio_unmap_page(dev, dma_handle, size, 0, NULL);
+	ccio_unmap_page(dev, dma_handle, size, 0, 0);
 	free_pages((unsigned long)cpu_addr, get_order(size));
 }
 
@@ -907,7 +907,7 @@ ccio_free(struct device *dev, size_t size, void *cpu_addr,
  */
 static int
 ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents, 
-	    enum dma_data_direction direction, struct dma_attrs *attrs)
+	    enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 	int coalesced, filled = 0;
@@ -984,7 +984,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
  */
 static void 
 ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, 
-	      enum dma_data_direction direction, struct dma_attrs *attrs)
+	      enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 
@@ -1004,7 +1004,7 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 		ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
 #endif
 		ccio_unmap_page(dev, sg_dma_address(sglist),
-				  sg_dma_len(sglist), direction, NULL);
+				  sg_dma_len(sglist), direction, 0);
 		++sglist;
 	}
 
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 42ec4600b7e4..151b86b6d2e2 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -783,7 +783,7 @@ sba_map_single(struct device *dev, void *addr, size_t size,
 static dma_addr_t
 sba_map_page(struct device *dev, struct page *page, unsigned long offset,
 		size_t size, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	return sba_map_single(dev, page_address(page) + offset, size,
 			direction);
@@ -801,7 +801,7 @@ sba_map_page(struct device *dev, struct page *page, unsigned long offset,
  */
 static void
 sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
-		enum dma_data_direction direction, struct dma_attrs *attrs)
+		enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 #if DELAYED_RESOURCE_CNT > 0
@@ -876,7 +876,7 @@ sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
  * See Documentation/DMA-API-HOWTO.txt
  */
 static void *sba_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle,
-		gfp_t gfp, struct dma_attrs *attrs)
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -908,9 +908,9 @@ static void *sba_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle
  */
 static void
 sba_free(struct device *hwdev, size_t size, void *vaddr,
-		    dma_addr_t dma_handle, struct dma_attrs *attrs)
+		    dma_addr_t dma_handle, unsigned long attrs)
 {
-	sba_unmap_page(hwdev, dma_handle, size, 0, NULL);
+	sba_unmap_page(hwdev, dma_handle, size, 0, 0);
 	free_pages((unsigned long) vaddr, get_order(size));
 }
 
@@ -943,7 +943,7 @@ int dump_run_sg = 0;
  */
 static int
 sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	   enum dma_data_direction direction, struct dma_attrs *attrs)
+	   enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 	int coalesced, filled = 0;
@@ -1026,7 +1026,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
  */
 static void 
 sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	     enum dma_data_direction direction, struct dma_attrs *attrs)
+	     enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 #ifdef ASSERT_PDIR_SANITY
@@ -1051,7 +1051,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	while (sg_dma_len(sglist) && nents--) {
 
 		sba_unmap_page(dev, sg_dma_address(sglist), sg_dma_len(sglist),
-				direction, NULL);
+				direction, 0);
 #ifdef SBA_COLLECT_STATS
 		ioc->usg_pages += ((sg_dma_address(sglist) & ~IOVP_MASK) + sg_dma_len(sglist) + IOVP_SIZE - 1) >> PAGE_SHIFT;
 		ioc->usingle_calls--;	/* kluge since call is unmap_sg() */
-- 
1.9.1



From - Thu Nov 08 21:39:02 2018
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From: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.rockchip,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH v4 43/44] dma-mapping: Remove dma_get_attr
Date: Fri, 10 Jun 2016 12:12:00 +0200
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Approved: news@gmane.org
Message-ID: <1465553521-27303-44-git-send-email-k.kozlowski@samsung.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/14101>

After switching DMA attributes to unsigned long it is easier to just
compare the bits.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
[for avr32]
Acked-by: Hans-Christian Noren Egtvedt <egtvedt-BrfabpQBY5qlHtIdYg32fQ@public.gmane.org>
---
 Documentation/DMA-API.txt                      |  4 +--
 arch/arc/mm/dma.c                              |  4 +--
 arch/arm/mm/dma-mapping.c                      | 36 ++++++++++++--------------
 arch/arm/xen/mm.c                              |  4 +--
 arch/arm64/mm/dma-mapping.c                    | 10 +++----
 arch/avr32/mm/dma-coherent.c                   |  4 +--
 arch/ia64/sn/pci/pci_dma.c                     | 10 ++-----
 arch/metag/kernel/dma.c                        |  2 +-
 arch/mips/mm/dma-default.c                     |  6 ++---
 arch/openrisc/kernel/dma.c                     |  4 +--
 arch/parisc/kernel/pci-dma.c                   |  2 +-
 arch/powerpc/platforms/cell/iommu.c            | 12 ++++-----
 drivers/gpu/drm/rockchip/rockchip_drm_gem.c    |  2 +-
 drivers/iommu/dma-iommu.c                      |  2 +-
 drivers/media/v4l2-core/videobuf2-dma-contig.c |  2 +-
 include/linux/dma-mapping.h                    | 10 -------
 16 files changed, 47 insertions(+), 67 deletions(-)

diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 24f9688bb98a..1d26eeb6b5f6 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -422,9 +422,7 @@ void whizco_dma_map_sg_attrs(struct device *dev, dma_addr_t dma_addr,
 			     unsigned long attrs)
 {
 	....
-	int foo =  dma_get_attr(DMA_ATTR_FOO, attrs);
-	....
-	if (foo)
+	if (attrs & DMA_ATTR_FOO)
 		/* twizzle the frobnozzle */
 	....
 
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 3d1f467d1792..74bbe68dce9d 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -46,7 +46,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
 	 *   (vs. always going to memory - thus are faster)
 	 */
 	if ((is_isa_arcv2() && ioc_exists) ||
-	    dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+	    (attrs & DMA_ATTR_NON_CONSISTENT))
 		need_coh = 0;
 
 	/*
@@ -95,7 +95,7 @@ static void arc_dma_free(struct device *dev, size_t size, void *vaddr,
 	struct page *page = virt_to_page(dma_handle);
 	int is_non_coh = 1;
 
-	is_non_coh = dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs) ||
+	is_non_coh = (attrs & DMA_ATTR_NON_CONSISTENT) ||
 			(is_isa_arcv2() && ioc_exists);
 
 	if (PageHighMem(page) || !is_non_coh)
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index ebb3fde99043..43e03b5293d0 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -126,7 +126,7 @@ static dma_addr_t arm_dma_map_page(struct device *dev, struct page *page,
 	     unsigned long offset, size_t size, enum dma_data_direction dir,
 	     unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__dma_page_cpu_to_dev(page, offset, size, dir);
 	return pfn_to_dma(dev, page_to_pfn(page)) + offset;
 }
@@ -155,7 +155,7 @@ static dma_addr_t arm_coherent_dma_map_page(struct device *dev, struct page *pag
 static void arm_dma_unmap_page(struct device *dev, dma_addr_t handle,
 		size_t size, enum dma_data_direction dir, unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__dma_page_dev_to_cpu(pfn_to_page(dma_to_pfn(dev, handle)),
 				      handle & ~PAGE_MASK, size, dir);
 }
@@ -622,9 +622,9 @@ static void __free_from_contiguous(struct device *dev, struct page *page,
 
 static inline pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot)
 {
-	prot = dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs) ?
-			    pgprot_writecombine(prot) :
-			    pgprot_dmacoherent(prot);
+	prot = (attrs & DMA_ATTR_WRITE_COMBINE) ?
+			pgprot_writecombine(prot) :
+			pgprot_dmacoherent(prot);
 	return prot;
 }
 
@@ -744,7 +744,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 		.gfp = gfp,
 		.prot = prot,
 		.caller = caller,
-		.want_vaddr = !dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs),
+		.want_vaddr = ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0),
 	};
 
 #ifdef CONFIG_DMA_API_DEBUG
@@ -887,7 +887,7 @@ static void __arm_dma_free(struct device *dev, size_t size, void *cpu_addr,
 		.size = PAGE_ALIGN(size),
 		.cpu_addr = cpu_addr,
 		.page = page,
-		.want_vaddr = !dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs),
+		.want_vaddr = ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0),
 	};
 
 	buf = arm_dma_buffer_find(cpu_addr);
@@ -1267,7 +1267,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size,
 	if (!pages)
 		return NULL;
 
-	if (dma_get_attr(DMA_ATTR_FORCE_CONTIGUOUS, attrs))
+	if (attrs & DMA_ATTR_FORCE_CONTIGUOUS)
 	{
 		unsigned long order = get_order(size);
 		struct page *page;
@@ -1285,7 +1285,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size,
 	}
 
 	/* Go straight to 4K chunks if caller says it's OK. */
-	if (dma_get_attr(DMA_ATTR_ALLOC_SINGLE_PAGES, attrs))
+	if (attrs & DMA_ATTR_ALLOC_SINGLE_PAGES)
 		order_idx = ARRAY_SIZE(iommu_order_array) - 1;
 
 	/*
@@ -1346,7 +1346,7 @@ static int __iommu_free_buffer(struct device *dev, struct page **pages,
 	int count = size >> PAGE_SHIFT;
 	int i;
 
-	if (dma_get_attr(DMA_ATTR_FORCE_CONTIGUOUS, attrs)) {
+	if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
 		dma_release_from_contiguous(dev, pages[0], count);
 	} else {
 		for (i = 0; i < count; i++)
@@ -1445,7 +1445,7 @@ static struct page **__iommu_get_pages(void *cpu_addr, unsigned long attrs)
 	if (__in_atomic_pool(cpu_addr, PAGE_SIZE))
 		return __atomic_get_pages(cpu_addr);
 
-	if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs))
+	if (attrs & DMA_ATTR_NO_KERNEL_MAPPING)
 		return cpu_addr;
 
 	area = find_vm_area(cpu_addr);
@@ -1512,7 +1512,7 @@ static void *arm_iommu_alloc_attrs(struct device *dev, size_t size,
 	if (*handle == DMA_ERROR_CODE)
 		goto err_buffer;
 
-	if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs))
+	if (attrs & DMA_ATTR_NO_KERNEL_MAPPING)
 		return pages;
 
 	addr = __iommu_alloc_remap(pages, size, gfp, prot,
@@ -1583,7 +1583,7 @@ void arm_iommu_free_attrs(struct device *dev, size_t size, void *cpu_addr,
 		return;
 	}
 
-	if (!dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs)) {
+	if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0) {
 		dma_common_free_remap(cpu_addr, size,
 			VM_ARM_DMA_CONSISTENT | VM_USERMAP);
 	}
@@ -1653,8 +1653,7 @@ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg,
 		phys_addr_t phys = page_to_phys(sg_page(s));
 		unsigned int len = PAGE_ALIGN(s->offset + s->length);
 
-		if (!is_coherent &&
-			!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+		if (!is_coherent && (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 			__dma_page_cpu_to_dev(sg_page(s), s->offset, s->length, dir);
 
 		prot = __dma_direction_to_prot(dir);
@@ -1767,8 +1766,7 @@ static void __iommu_unmap_sg(struct device *dev, struct scatterlist *sg,
 		if (sg_dma_len(s))
 			__iommu_remove_mapping(dev, sg_dma_address(s),
 					       sg_dma_len(s));
-		if (!is_coherent &&
-		    !dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+		if (!is_coherent && (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 			__dma_page_dev_to_cpu(sg_page(s), s->offset,
 					      s->length, dir);
 	}
@@ -1892,7 +1890,7 @@ static dma_addr_t arm_iommu_map_page(struct device *dev, struct page *page,
 	     unsigned long offset, size_t size, enum dma_data_direction dir,
 	     unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__dma_page_cpu_to_dev(page, offset, size, dir);
 
 	return arm_coherent_iommu_map_page(dev, page, offset, size, dir, attrs);
@@ -1943,7 +1941,7 @@ static void arm_iommu_unmap_page(struct device *dev, dma_addr_t handle,
 	if (!iova)
 		return;
 
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__dma_page_dev_to_cpu(page, offset, size, dir);
 
 	iommu_unmap(mapping->domain, iova, len);
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index fc67ed236a10..d062f08f5020 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -102,7 +102,7 @@ void __xen_dma_map_page(struct device *hwdev, struct page *page,
 {
 	if (is_device_dma_coherent(hwdev))
 		return;
-	if (dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
 		return;
 
 	__xen_dma_page_cpu_to_dev(hwdev, dev_addr, size, dir);
@@ -115,7 +115,7 @@ void __xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
 {
 	if (is_device_dma_coherent(hwdev))
 		return;
-	if (dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
 		return;
 
 	__xen_dma_page_dev_to_cpu(hwdev, handle, size, dir);
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index a7686028dfeb..06c068ca3541 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -32,7 +32,7 @@
 static pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot,
 				 bool coherent)
 {
-	if (!coherent || dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+	if (!coherent || (attrs & DMA_ATTR_WRITE_COMBINE))
 		return pgprot_writecombine(prot);
 	return prot;
 }
@@ -702,7 +702,7 @@ static dma_addr_t __iommu_map_page(struct device *dev, struct page *page,
 	dma_addr_t dev_addr = iommu_dma_map_page(dev, page, offset, size, prot);
 
 	if (!iommu_dma_mapping_error(dev, dev_addr) &&
-	    !dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	    (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__iommu_sync_single_for_device(dev, dev_addr, size, dir);
 
 	return dev_addr;
@@ -712,7 +712,7 @@ static void __iommu_unmap_page(struct device *dev, dma_addr_t dev_addr,
 			       size_t size, enum dma_data_direction dir,
 			       unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__iommu_sync_single_for_cpu(dev, dev_addr, size, dir);
 
 	iommu_dma_unmap_page(dev, dev_addr, size, dir, attrs);
@@ -752,7 +752,7 @@ static int __iommu_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
 {
 	bool coherent = is_device_dma_coherent(dev);
 
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__iommu_sync_sg_for_device(dev, sgl, nelems, dir);
 
 	return iommu_dma_map_sg(dev, sgl, nelems,
@@ -764,7 +764,7 @@ static void __iommu_unmap_sg_attrs(struct device *dev,
 				   enum dma_data_direction dir,
 				   unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__iommu_sync_sg_for_cpu(dev, sgl, nelems, dir);
 
 	iommu_dma_unmap_sg(dev, sgl, nelems, dir, attrs);
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
index fc51f4421933..58610d0df7ed 100644
--- a/arch/avr32/mm/dma-coherent.c
+++ b/arch/avr32/mm/dma-coherent.c
@@ -109,7 +109,7 @@ static void *avr32_dma_alloc(struct device *dev, size_t size,
 		return NULL;
 	phys = page_to_phys(page);
 
-	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs)) {
+	if (attrs & DMA_ATTR_WRITE_COMBINE) {
 		/* Now, map the page into P3 with write-combining turned on */
 		*handle = phys;
 		return __ioremap(phys, size, _PAGE_BUFFER);
@@ -123,7 +123,7 @@ static void avr32_dma_free(struct device *dev, size_t size,
 {
 	struct page *page;
 
-	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs)) {
+	if (attrs & DMA_ATTR_WRITE_COMBINE) {
 		iounmap(cpu_addr);
 
 		page = phys_to_page(handle);
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index 6b78fc953c4b..74c934a997bb 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -183,14 +183,11 @@ static dma_addr_t sn_dma_map_page(struct device *dev, struct page *page,
 	unsigned long phys_addr;
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
-	int dmabarr;
-
-	dmabarr = dma_get_attr(DMA_ATTR_WRITE_BARRIER, attrs);
 
 	BUG_ON(!dev_is_pci(dev));
 
 	phys_addr = __pa(cpu_addr);
-	if (dmabarr)
+	if (attrs & DMA_ATTR_WRITE_BARRIER)
 		dma_addr = provider->dma_map_consistent(pdev, phys_addr,
 							size, SN_DMA_ADDR_PHYS);
 	else
@@ -280,9 +277,6 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
 	int i;
-	int dmabarr;
-
-	dmabarr = dma_get_attr(DMA_ATTR_WRITE_BARRIER, attrs);
 
 	BUG_ON(!dev_is_pci(dev));
 
@@ -292,7 +286,7 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
 	for_each_sg(sgl, sg, nhwentries, i) {
 		dma_addr_t dma_addr;
 		phys_addr = SG_ENT_PHYS_ADDRESS(sg);
-		if (dmabarr)
+		if (attrs & DMA_ATTR_WRITE_BARRIER)
 			dma_addr = provider->dma_map_consistent(pdev,
 								phys_addr,
 								sg->length,
diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index d68f498e82a1..0db31e24c541 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -337,7 +337,7 @@ static int metag_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 	struct metag_vm_region *c;
 	int ret = -ENXIO;
 
-	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+	if (attrs & DMA_ATTR_WRITE_COMBINE)
 		vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 	else
 		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 0ed9000dc1ff..b2eadd6fa9a1 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -141,7 +141,7 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
 	 * XXX: seems like the coherent and non-coherent implementations could
 	 * be consolidated.
 	 */
-	if (dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+	if (attrs & DMA_ATTR_NON_CONSISTENT)
 		return mips_dma_alloc_noncoherent(dev, size, dma_handle, gfp);
 
 	gfp = massage_gfp_flags(dev, gfp);
@@ -182,7 +182,7 @@ static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	struct page *page = NULL;
 
-	if (dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) {
+	if (attrs & DMA_ATTR_NON_CONSISTENT) {
 		mips_dma_free_noncoherent(dev, size, vaddr, dma_handle);
 		return;
 	}
@@ -214,7 +214,7 @@ static int mips_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 
 	pfn = page_to_pfn(virt_to_page((void *)addr));
 
-	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+	if (attrs & DMA_ATTR_WRITE_COMBINE)
 		vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 	else
 		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index 50eb1f26c540..140c99140649 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -100,7 +100,7 @@ or1k_dma_alloc(struct device *dev, size_t size,
 
 	va = (unsigned long)page;
 
-	if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) {
+	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0) {
 		/*
 		 * We need to iterate through the pages, clearing the dcache for
 		 * them and setting the cache-inhibit bit.
@@ -124,7 +124,7 @@ or1k_dma_free(struct device *dev, size_t size, void *vaddr,
 		.mm = &init_mm
 	};
 
-	if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) {
+	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0) {
 		/* walk_page_range shouldn't be able to fail here */
 		WARN_ON(walk_page_range(va, va + size, &walk));
 	}
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 845fdd52e4c5..02d9ed0f3949 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -581,7 +581,7 @@ static void *pcx_dma_alloc(struct device *dev, size_t size,
 {
 	void *addr;
 
-	if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0)
 		return NULL;
 
 	addr = (void *)__get_free_pages(flag, get_order(size));
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index c8e11e020335..6128bdb428b2 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -193,7 +193,7 @@ static int tce_build_cell(struct iommu_table *tbl, long index, long npages,
 	base_pte = CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_M |
 		CBE_IOPTE_SO_RW | (window->ioid & CBE_IOPTE_IOID_Mask);
 #endif
-	if (unlikely(dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs)))
+	if (unlikely(attrs & DMA_ATTR_WEAK_ORDERING))
 		base_pte &= ~CBE_IOPTE_SO_RW;
 
 	io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset);
@@ -600,7 +600,7 @@ static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page,
 				     enum dma_data_direction direction,
 				     unsigned long attrs)
 {
-	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
 		return dma_direct_ops.map_page(dev, page, offset, size,
 					       direction, attrs);
 	else
@@ -613,7 +613,7 @@ static void dma_fixed_unmap_page(struct device *dev, dma_addr_t dma_addr,
 				 size_t size, enum dma_data_direction direction,
 				 unsigned long attrs)
 {
-	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
 		dma_direct_ops.unmap_page(dev, dma_addr, size, direction,
 					  attrs);
 	else
@@ -625,7 +625,7 @@ static int dma_fixed_map_sg(struct device *dev, struct scatterlist *sg,
 			   int nents, enum dma_data_direction direction,
 			   unsigned long attrs)
 {
-	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
 		return dma_direct_ops.map_sg(dev, sg, nents, direction, attrs);
 	else
 		return ppc_iommu_map_sg(dev, cell_get_iommu_table(dev), sg,
@@ -637,7 +637,7 @@ static void dma_fixed_unmap_sg(struct device *dev, struct scatterlist *sg,
 			       int nents, enum dma_data_direction direction,
 			       unsigned long attrs)
 {
-	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
 		dma_direct_ops.unmap_sg(dev, sg, nents, direction, attrs);
 	else
 		ppc_iommu_unmap_sg(cell_get_iommu_table(dev), sg, nents,
@@ -1162,7 +1162,7 @@ static int __init setup_iommu_fixed(char *str)
 	pciep = of_find_node_by_type(NULL, "pcie-endpoint");
 
 	if (strcmp(str, "weak") == 0 || (pciep && strcmp(str, "strong") != 0))
-		iommu_fixed_is_weak = 1;
+		iommu_fixed_is_weak = DMA_ATTR_WEAK_ORDERING;
 
 	of_node_put(pciep);
 
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
index 7b1788e2a808..4a28d6348c76 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
@@ -273,7 +273,7 @@ void *rockchip_gem_prime_vmap(struct drm_gem_object *obj)
 {
 	struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj);
 
-	if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, rk_obj->dma_attrs))
+	if (rk_obj->dma_attrs & DMA_ATTR_NO_KERNEL_MAPPING)
 		return NULL;
 
 	return rk_obj->kvaddr;
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 6c1bda504fb1..08a1e2f3690f 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -306,7 +306,7 @@ struct page **iommu_dma_alloc(struct device *dev, size_t size, gfp_t gfp,
 	} else {
 		size = ALIGN(size, min_size);
 	}
-	if (dma_get_attr(DMA_ATTR_ALLOC_SINGLE_PAGES, attrs))
+	if (attrs & DMA_ATTR_ALLOC_SINGLE_PAGES)
 		alloc_sizes = min_size;
 
 	count = PAGE_ALIGN(size) >> PAGE_SHIFT;
diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c
index 36cb488dc737..7073e7ee9296 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-contig.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c
@@ -160,7 +160,7 @@ static void *vb2_dc_alloc(void *alloc_ctx, unsigned long size,
 		return ERR_PTR(-ENOMEM);
 	}
 
-	if (!dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, buf->attrs))
+	if ((buf->attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0)
 		buf->vaddr = buf->cookie;
 
 	/* Prevent the device from being released while the buffer is used */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 1fd9860487b1..d8fb67783cb7 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -101,16 +101,6 @@ static inline int is_device_dma_capable(struct device *dev)
 	return dev->dma_mask != NULL && *dev->dma_mask != DMA_MASK_NONE;
 }
 
-/**
- * dma_get_attr - check for a specific attribute
- * @attr: attribute to look for
- * @attrs: attributes to check within
- */
-static inline bool dma_get_attr(unsigned long attr, unsigned long attrs)
-{
-	return !!(attr & attrs);
-}
-
 #ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
 /*
  * These three functions are only for dma allocator.
-- 
1.9.1


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Subject: Re: [PATCH 11/14] s390/ptrace: run seccomp after ptrace
Date: Fri, 10 Jun 2016 12:51:58 +0200
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On Thu,  9 Jun 2016 14:02:01 -0700
Kees Cook <keescook@chromium.org> wrote:

> Close the hole where ptrace can change a syscall out from under seccomp.
> 
> Signed-off-by: Kees Cook <keescook@chromium.org>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
> Cc: linux-s390@vger.kernel.org
> ---
>  arch/s390/kernel/ptrace.c | 21 +++++++++------------
>  1 file changed, 9 insertions(+), 12 deletions(-)

If the change in semantics in regard to the audit of skipped system calls
is acceptable, the modified s390 arch code is ok.

-- 
blue skies,
   Martin.

"Reality continues to ruin my life." - Calvin.




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On Friday 10 June 2016 03:44 PM, Krzysztof Kozlowski wrote:
> After switching DMA attributes to unsigned long it is easier to just
> compare the bits.
>
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> [for avr32]
> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>

Acked-by: Vineet Gupta <vgupta@synopsys.com>   #for arch/arc



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From: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.rockchip,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v4 43/44] dma-mapping: Remove dma_get_attr
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Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org, Michal Hocko <mhocko-IBi9RG/b67k@public.gmane.org>,
	linux-ia64-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>,
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	"James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>,
	Max Filippov <jcmvbkbc-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Paul Mackerras <paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>,
	Jisheng Zhang <jszhang-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>,
	Andrea Gelmini <andrea.gelmini-PT7Us6ch6G9eoWH0uzbU5w@public.gmane.org>,
	Hans-Christian Egtvedt <egtvedt-BrfabpQBY5qlHtIdYg32fQ@public.gmane.org>,
	Jonas Bonn <jonas-A9uVI2HLR7kOP4wsBPIw7w@public.gmane.org>,
	Stefano Stabellini <sstabellini-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Pawel Osciak <pawel-FA/gS7QP4orQT0dZR+AlfA@public.gmane.org>, linux-snps-arc-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	Jonathan Corbet <corbet-T1hC0tSOHrs@public.gmane.org>, Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>,
	Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>,
	Mauro Carvalho Chehab <mchehab-JPH+aEBZ4P+UEJcrhfAQsw@public.gmane.org>,
	Alexey Brodkin <abrodkin-HKixBCOQz3jQFizaE/u3fw@public.gmane.org
To: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
	Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/14103>

On 10/06/16 11:12, Krzysztof Kozlowski wrote:
> After switching DMA attributes to unsigned long it is easier to just
> compare the bits.
>
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
> [for avr32]
> Acked-by: Hans-Christian Noren Egtvedt <egtvedt-BrfabpQBY5qlHtIdYg32fQ@public.gmane.org>
> ---
[...]
>   arch/arm64/mm/dma-mapping.c                    | 10 +++----
[...]
>   drivers/iommu/dma-iommu.c                      |  2 +-
[...]
> diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
> index a7686028dfeb..06c068ca3541 100644
> --- a/arch/arm64/mm/dma-mapping.c
> +++ b/arch/arm64/mm/dma-mapping.c
> @@ -32,7 +32,7 @@
>   static pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot,
>   				 bool coherent)
>   {
> -	if (!coherent || dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
> +	if (!coherent || (attrs & DMA_ATTR_WRITE_COMBINE))
>   		return pgprot_writecombine(prot);
>   	return prot;
>   }
> @@ -702,7 +702,7 @@ static dma_addr_t __iommu_map_page(struct device *dev, struct page *page,
>   	dma_addr_t dev_addr = iommu_dma_map_page(dev, page, offset, size, prot);
>
>   	if (!iommu_dma_mapping_error(dev, dev_addr) &&
> -	    !dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
> +	    (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
>   		__iommu_sync_single_for_device(dev, dev_addr, size, dir);
>
>   	return dev_addr;
> @@ -712,7 +712,7 @@ static void __iommu_unmap_page(struct device *dev, dma_addr_t dev_addr,
>   			       size_t size, enum dma_data_direction dir,
>   			       unsigned long attrs)
>   {
> -	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
> +	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
>   		__iommu_sync_single_for_cpu(dev, dev_addr, size, dir);
>
>   	iommu_dma_unmap_page(dev, dev_addr, size, dir, attrs);
> @@ -752,7 +752,7 @@ static int __iommu_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
>   {
>   	bool coherent = is_device_dma_coherent(dev);
>
> -	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
> +	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
>   		__iommu_sync_sg_for_device(dev, sgl, nelems, dir);
>
>   	return iommu_dma_map_sg(dev, sgl, nelems,
> @@ -764,7 +764,7 @@ static void __iommu_unmap_sg_attrs(struct device *dev,
>   				   enum dma_data_direction dir,
>   				   unsigned long attrs)
>   {
> -	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
> +	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
>   		__iommu_sync_sg_for_cpu(dev, sgl, nelems, dir);
>
>   	iommu_dma_unmap_sg(dev, sgl, nelems, dir, attrs);
[...]
> diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
> index 6c1bda504fb1..08a1e2f3690f 100644
> --- a/drivers/iommu/dma-iommu.c
> +++ b/drivers/iommu/dma-iommu.c
> @@ -306,7 +306,7 @@ struct page **iommu_dma_alloc(struct device *dev, size_t size, gfp_t gfp,
>   	} else {
>   		size = ALIGN(size, min_size);
>   	}
> -	if (dma_get_attr(DMA_ATTR_ALLOC_SINGLE_PAGES, attrs))
> +	if (attrs & DMA_ATTR_ALLOC_SINGLE_PAGES)
>   		alloc_sizes = min_size;
>
>   	count = PAGE_ALIGN(size) >> PAGE_SHIFT;
[...]

These all look appropriate to me; thanks!

For arm64 and dma-iommu:

Acked-by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>

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On 10.06.2016 05:23, George Spelvin wrote:
> Helge Deller wrote:
>>> +	a += c << 3;		_ASSIGN(b, b << 7+31, "X" (c), "X" (d));
>>
>> This line produces compiler warnings:
> 
> Thanks for catching that.
> 
>> So, please add
>> Acked-by: Helge Deller <deller@gmx.de>
> 
> Done and pushed out to git://ftp.sciencehorizons.net/linux.git hash
> 
> Would you like to take it via the PA-RISC tree?

Yes, I will take it through the parisc tree.

Helge

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Xref: news.gmane.org gmane.linux.ports.parisc:26883 gmane.linux.scsi:114266
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On 10.06.2016 00:23, James Bottomley wrote:
> On Thu, 2016-06-09 at 21:36 +0200, Helge Deller wrote:
>> Hi James,
>>
>> I just tried Debian kernel 4.6.1-1 on my historic 715/64 machine, and it
>> ran into this  BUG() in the LASI scsi driver:
>>
>>  scsi 0:0:6:0: no saved request for untagged cmd
>>
>> Any idea?
>>
>> Helge
>>  
>> [    0.000000] Linux version 4.6.0-1-parisc (debian-kernel@lists.debian.org) (gcc version 5.4.0 20160603 (Debian 5.4.0-3) ) #1 Debian 4.6.1-1 (2016-06-06)
>> ...
>> [    0.000000] Determining PDC firmware type: Snake.
>> [    0.000000] model 000060a0 00000481 00000000 00000000 773c7d2c 00000000 00000004 00000072 00000072
>> [    0.000000] vers  0000000c
>> [    0.000000] model 9000/715
>> [    0.000000] Total Memory: 160 MB
>> ...
>> [   43.180000] SCSI subsystem initialized
>> [   45.076000] 53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
>> [   45.156000] scsi0: 53c710 rev 2 
>> [   46.204000] scsi host0: LASI SCSI 53c700
>> [   58.268000] scsi 0:0:6:0: no saved request for untagged cmd
>> [   58.336000] ------------[ cut here ]------------
>> [   58.392000] kernel BUG at /build/linux-XAODSw/linux-4.6.1/drivers/scsi/53c700.c:1129!
>> [   58.484000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-1-parisc #1 Debian 4.6.1-1
>> [   58.580000] task: 1083cdd8 ti: 107b1000 task.ti: 107b1000
>> [   58.644000] 
>> [   58.660000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
>> [   58.716000] PSW: 00000000000001001111111100001110 Not tainted
>> [   58.788000] r00-03  0004ff0e 0084e388 00a8ea8c 107ba400
>> [   58.848000] r04-07  00000000 00000000 15b88cc0 00000006
>> [   58.912000] r08-11  198ca400 000000ff 00000020 00000000
>> [   58.976000] r12-15  000000ff 00001003 10801020 00000001
>> [   59.036000] r16-19  107b1240 00000002 000000ff 00000001
>> [   59.100000] r20-23  00000001 0000000e 0084f388 00000000
>> [   59.164000] r24-27  107ba500 0083b540 1021a7a4 107b5020
>> [   59.224000] r28-31  00000000 00000040 107ba480 104d52bc
>> [   59.288000] sr00-03  00000000 00000000 00000000 0000000d
>> [   59.352000] sr04-07  00000000 00000000 00000000 00000000
>> [   59.416000] 
>> [   59.432000] IASQ: 00000000 00000000 IAOQ: 00a8ea8c 00a8ea90
>> [   59.500000]  IIR: 03ffe01f    ISR: 0000000d  IOR: 00a8ea90
>> [   59.564000]  CPU:        0   CR30: 107b1000 CR31: f00effff
>> [   59.632000]  ORIG_R28: 10855e80
>> [   59.668000]  IAOQ[0]: process_script_interrupt+0x13ec/0x16a4 [53c700]
>> [   59.748000]  IAOQ[1]: process_script_interrupt+0x13f0/0x16a4 [53c700]
>> [   59.824000]  RP(r2): process_script_interrupt+0x13ec/0x16a4 [53c700]
>> [   59.900000] Backtrace:
>> [   59.928000]  [<00a8ea8c>] process_script_interrupt+0x13ec/0x16a4 [53c700]
>> [   60.012000] 
>> [   60.028000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-1-parisc #1 Debian 4.6.1-1
>> [   60.120000] Backtrace:
>> [   60.148000]  [<1015bffc>] show_stack+0x3c/0x50
>> [   60.204000]  [<10425d40>] dump_stack+0x28/0x38
>> [   60.256000]  [<1015c180>] die_if_kernel+0x134/0x20c
>> [   60.316000]  [<1015cd34>] handle_interruption+0x804/0x828
>> [   60.380000] 
>> [   60.400000] Kernel panic - not syncing: Fatal exception in interrupt
>> [   60.400000] ---[ end Kernel panic - not syncing: Fatal exception in interrupt
> 
> It looks like either an unsolicited reselection or possibly a spurious
> interrupt left over from something.  Can you define NCR_700_DEBUG in
> drivers/scsi/53c700.h and see what it says?

I enabled NCR_700_DEBUG and NCR_700_TAG_DEBUG.
This is from vanilla kernel 4.6:

[    8.700000] Uniform Multi-Platform E-IDE driver
[    8.760000] ide-gd driver 1.18
[    8.790000] ide-cd driver 5.00
[    8.860000]  script, patching MessageLocation at 31 to 0x09f684b0
[    8.930000]  script, patching StatusAddress at 281 to 0x09f684d0
[    9.000000]  script, patching ReceiveMsgAddress at 15 to 0x09f684c0
[    9.080000]  script, patching ReceiveMsgAddress at 19 to 0x09f684c0
[    9.150000]  script, patching ReceiveMsgAddress at 41 to 0x09f684c0
[    9.230000]  script, patching ReceiveMsgAddress at 49 to 0x09f684c0
[    9.300000]  script, patching ReceiveMsgAddress at 55 to 0x09f684c0
[    9.370000]  script, patching ReceiveMsgAddress at 71 to 0x09f684c0
[    9.450000]  script, patching ReceiveMsgAddress at 77 to 0x09f684c0
[    9.520000]  script, patching ReceiveMsgAddress at 83 to 0x09f684c0
[    9.600000]  script, patching ReceiveMsgAddress at 89 to 0x09f684c0
[    9.670000]  script, patching ReceiveMsgAddress at 95 to 0x09f684c0
[    9.750000]  script, patching ReceiveMsgAddress at 137 to 0x09f684c0
[    9.830000]  script, patching ReceiveMsgAddress at 147 to 0x09f684c0
[    9.900000]  script, patching ReceiveMsgAddress at 177 to 0x09f684c0
[    9.980000]  script, patching ReceiveMsgAddress at 215 to 0x09f684c0
[   10.050000]  script, patching ReceiveMsgAddress at 251 to 0x09f684c0
[   10.130000]  script, patching ReceiveMsgAddress at 285 to 0x09f684c0
[   10.210000] 53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
[   10.290000] scsi0: 53c710 rev 2 
[   11.330000] 53c700: sync 1 async 2
[   11.370000] scsi host0: LASI SCSI 53c700
[   11.430000] 53c700: scsi0, command 
[   11.430000] scsi 0:0:0:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
[   11.430000]  scatter block 0: move 36[09000024] from 0x9d66100
[   11.430000]  SETTING 09f684e8 to 90080000
[   11.430000]  script, patching short field MessageCount at 30 to 0xe000006
[   11.430000]  script, patching ID field Device_ID at 0 to 0x41010000
[   11.430000]  script, patching CommandAddress at 121 to 0x09c0d3c8
[   11.430000]  script, patching short field CommandCount at 120 to 0xa000006
[   11.430000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
[   11.430000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
[   32.090000] scsi 0:0:0:0: tag#0 abort command
[   32.140000] scsi 0:0:0:0: tag#0 New error handler wants BUS reset, cmd 19f72d20
[   32.140000] 
[   32.240000] scsi 0:0:0:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
[   32.320000] scsi0: istat 02 sstat0 02 dstat 00 dsp 0002[09f68008] dsps 0x9f68020
[   32.320000] scsi0: Bus Reset detected, executing command 19f72d20, slot 000084e0, dsp 09f68008[0008]
[   32.320000]  failing command because of reset, slot 000084e0, cmnd 19f72d20
[   32.320000] 53c700: sync 1 async 2
[   42.670000] 53c700: scsi0, command 
[   42.670000] scsi 0:0:0:0: tag#0 CDB: opcode=0x0 00 00 00 00 00 00
[   42.670000]  script, patching short field MessageCount at 30 to 0xe000006
[   42.670000]  script, patching ID field Device_ID at 0 to 0x41010000
[   42.670000]  script, patching CommandAddress at 121 to 0x09fa03f4
[   42.670000]  script, patching short field CommandCount at 120 to 0xa000006
[   42.670000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
[   42.670000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
[   43.260000] scsi 0:0:0:0: tag#0 abort command
[   43.310000] scsi0: istat 02 sstat0 02 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
[   43.310000] scsi0: Bus Reset detected, executing command 19f72d20, slot 000084e0, dsp 09f68010[0010]
[   43.310000]  failing command because of reset, slot 000084e0, cmnd 19f72d20
[   43.310000] 53c700: sync 1 async 2
[   43.650000] scsi 0:0:0:0: tag#0 New error handler wants BUS reset, cmd 19f72d20
[   43.650000] 
[   43.760000] scsi 0:0:0:0: tag#0 CDB: opcode=0x0 00 00 00 00 00 00
[   43.830000] scsi0: istat 02 sstat0 02 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
[   43.830000] scsi0: Bus Reset detected, executing command   (null), slot   (null), dsp 09f68010[0010]
[   43.830000] 53c700: sync 1 async 2
[   54.110000] scsi 0:0:0:0: tag#0 New error handler wants HOST reset
[   54.110000] 
[   54.200000] scsi 0:0:0:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
[   54.270000] 53c700: sync 1 async 2
[   54.270000] timer_interrupt(CPU 0): delayed! cycles 3F77F5E rem 20A2  next/now 90731E60/9072FDBE
[   65.430000] 53c700: scsi0, command 
[   65.430000] scsi 0:0:0:0: tag#0 CDB: opcode=0x0 00 00 00 00 00 00
[   65.430000]  script, patching short field MessageCount at 30 to 0xe000006
[   65.430000]  script, patching ID field Device_ID at 0 to 0x41010000
[   65.430000]  script, patching CommandAddress at 121 to 0x09fa03f4
[   65.430000]  script, patching short field CommandCount at 120 to 0xa000006
[   65.430000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
[   65.430000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
[   66.020000] scsi 0:0:0:0: tag#0 abort command
[   66.070000] scsi0: istat 02 sstat0 02 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
[   66.070000] scsi0: Bus Reset detected, executing command 19f72d20, slot 000084e0, dsp 09f68010[0010]
[   66.070000]  failing command because of reset, slot 000084e0, cmnd 19f72d20
[   66.070000] 53c700: sync 1 async 2
[   66.410000] scsi 0:0:0:0: tag#0 New error handler wants BUS reset, cmd 19f72d20
[   66.410000] 
[   66.520000] scsi 0:0:0:0: tag#0 CDB: opcode=0x0 00 00 00 00 00 00
[   66.590000] scsi0: istat 02 sstat0 02 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
[   66.590000] scsi0: Bus Reset detected, executing command   (null), slot   (null), dsp 09f68010[0010]
[   66.590000] 53c700: sync 1 async 2
[   76.870000] scsi 0:0:0:0: Device offlined - not ready after error recovery
[   76.950000] 53c700: scsi0, command 
[   76.950000] scsi 0:0:1:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
[   76.950000]  scatter block 0: move 36[09000024] from 0x9d66100
[   76.950000]  SETTING 09f684e8 to 90080000
[   76.950000]  script, patching short field MessageCount at 30 to 0xe000006
[   76.950000]  script, patching ID field Device_ID at 0 to 0x41020000
[   76.950000]  script, patching CommandAddress at 121 to 0x09c0d3c8
[   76.950000]  script, patching short field CommandCount at 120 to 0xa000006
[   76.950000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
[   76.950000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
[   77.970000] scsi0: istat 02 sstat0 20 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
[   77.970000] scsi0: (1:0) selection timeout
[   78.110000] 53c700: scsi0, command 
[   78.110000] scsi 0:0:2:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
[   78.110000]  scatter block 0: move 36[09000024] from 0x9d66100
[   78.110000]  SETTING 09f684e8 to 90080000
[   78.110000]  script, patching short field MessageCount at 30 to 0xe000006
[   78.110000]  script, patching ID field Device_ID at 0 to 0x41040000
[   78.110000]  script, patching CommandAddress at 121 to 0x09c0d3c8
[   78.110000]  script, patching short field CommandCount at 120 to 0xa000006
[   78.110000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
[   78.110000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
[   79.120000] scsi0: istat 02 sstat0 20 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
[   79.120000] scsi0: (2:0) selection timeout
[   79.270000] 53c700: scsi0, command 
[   79.270000] scsi 0:0:3:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
[   79.270000]  scatter block 0: move 36[09000024] from 0x9d66100
[   79.270000]  SETTING 09f684e8 to 90080000
[   79.270000]  script, patching short field MessageCount at 30 to 0xe000006
[   79.270000]  script, patching ID field Device_ID at 0 to 0x41080000
[   79.270000]  script, patching CommandAddress at 121 to 0x09c0d3c8
[   79.270000]  script, patching short field CommandCount at 120 to 0xa000006
[   79.270000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
[   79.270000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
[   80.280000] scsi0: istat 02 sstat0 20 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
[   80.280000] scsi0: (3:0) selection timeout
[   80.420000] 53c700: scsi0, command 
[   80.420000] scsi 0:0:4:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
[   80.420000]  scatter block 0: move 36[09000024] from 0x9d66100
[   80.420000]  SETTING 09f684e8 to 90080000
[   80.420000]  script, patching short field MessageCount at 30 to 0xe000006
[   80.420000]  script, patching ID field Device_ID at 0 to 0x41100000
[   80.420000]  script, patching CommandAddress at 121 to 0x09c0d3c8
[   80.420000]  script, patching short field CommandCount at 120 to 0xa000006
[   80.420000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
[   80.420000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
[   81.440000] scsi0: istat 02 sstat0 20 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
[   81.440000] scsi0: (4:0) selection timeout
[   81.580000] 53c700: scsi0, command 
[   81.580000] scsi 0:0:5:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
[   81.580000]  scatter block 0: move 36[09000024] from 0x9d66100
[   81.580000]  SETTING 09f684e8 to 90080000
[   81.580000]  script, patching short field MessageCount at 30 to 0xe000006
[   81.580000]  script, patching ID field Device_ID at 0 to 0x41200000
[   81.580000]  script, patching CommandAddress at 121 to 0x09c0d3c8
[   81.580000]  script, patching short field CommandCount at 120 to 0xa000006
[   81.580000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
[   81.580000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
[   82.590000] scsi0: istat 02 sstat0 20 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
[   82.590000] scsi0: (5:0) selection timeout
[   82.740000] 53c700: scsi0, command 
[   82.740000] scsi 0:0:6:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
[   82.740000]  scatter block 0: move 36[09000024] from 0x9d66100
[   82.740000]  SETTING 09f684e8 to 90080000
[   82.740000]  script, patching short field MessageCount at 30 to 0xe000006
[   82.740000]  script, patching ID field Device_ID at 0 to 0x41400000
[   82.740000]  script, patching CommandAddress at 121 to 0x09c0d3c8
[   82.740000]  script, patching short field CommandCount at 120 to 0xa000006
[   82.740000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
[   82.740000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
[   83.440000] scsi0: istat 09 sstat0 00 dstat 84 dsp 00ba[09f682e8] dsps 0x250
[   83.440000] scsi0: (6:0) ====>SCRIPT INTERRUPT<====
[   83.440000] scsi0 (6:0): message before command phase: 01 03 01 00 00 
[   83.440000] Attempting to resume at 9f682e8
[   83.710000] scsi0: istat 01 sstat0 00 dstat 84 dsp 00ac[09f682b0] dsps 0x380
[   83.710000] scsi0: (6:0) ====>SCRIPT INTERRUPT<====
[   83.710000] scsi0: (6:0), DISCONNECTED (3) after command phase
[   83.920000] scsi0: istat 0a sstat0 10 dstat 00 dsp 00ac[09f682b0] dsps 0x380
[   83.920000] scsi0:  Reselected by 6
[   83.920000] Attempting to resume at 9f68038
[   84.100000] scsi0: istat 09 sstat0 00 dstat 84 dsp 0012[09f68048] dsps 0x1003
[   84.100000] scsi0: (255:255) ====>SCRIPT INTERRUPT<====
[   84.100000] scsi0: (6:0) RESELECTED!
[   84.100000] scsi 0:0:6:0: no saved request for untagged cmd
[   84.360000] ------------[ cut here ]------------
[   84.410000] kernel BUG at /home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/scsi/53c700.c:1129!
[   84.520000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-32bit+ #323
[   84.590000] task: 10732288 ti: 1072b000 task.ti: 1072b000
[   84.660000] 
[   84.680000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   84.730000] PSW: 00000000000001001111111100001110 Not tainted
[   84.800000] r00-03  0004ff0e 1077a24c 10438288 10735940
[   84.860000] r04-07  19f63d80 00000000 09f68048 00000006
[   84.930000] r08-11  19d5e000 19fa6c00 00000020 10669d30
[   84.990000] r12-15  00000084 000000ff 00000000 00200000
[   85.050000] r16-19  10735280 00000002 00000000 00000001
[   85.110000] r20-23  00000001 0000000e 1077b24c 103cfbac
[   85.180000] r24-27  00000000 0000000e 00000000 1072f030
[   85.240000] r28-31  00000000 00000119 107359c0 103d2adc
[   85.300000] sr00-03  00000000 00000000 00000000 00000000
[   85.360000] sr04-07  00000000 00000000 00000000 00000000
[   85.430000] 
[   85.450000] IASQ: 00000000 00000000 IAOQ: 10438288 1043828c
[   85.510000]  IIR: 03ffe01f    ISR: 00000000  IOR: 107359c0
[   85.580000]  CPU:        0   CR30: 1072b000 CR31: f00effff
[   85.640000]  ORIG_R28: 00000000
[   85.680000]  IAOQ[0]: process_script_interrupt+0x7ac/0xdd8
[   85.750000]  IAOQ[1]: process_script_interrupt+0x7b0/0xdd8
[   85.810000]  RP(r2): process_script_interrupt+0x7ac/0xdd8
[   85.880000] Backtrace:
[   85.900000]  [<10439f1c>] NCR_700_intr+0xcf8/0x12c0
[   85.960000]  [<101a2c00>] handle_irq_event_percpu+0x80/0x178
[   86.030000]  [<101a2d44>] handle_irq_event+0x4c/0x84
[   86.090000]  [<101a5894>] handle_simple_irq+0x88/0xa8
[   86.150000]  [<101a23f4>] generic_handle_irq+0x2c/0x44
[   86.210000]  [<10394924>] gsc_asic_intr+0x80/0xb4
[   86.270000]  [<101a2c00>] handle_irq_event_percpu+0x80/0x178
[   86.340000]  [<101a61dc>] handle_percpu_irq+0x5c/0x88
[   86.400000]  [<101a23f4>] generic_handle_irq+0x2c/0x44
[   86.460000]  [<10156688>] execute_on_irq_stack+0x40/0x70
[   86.520000]  [<10156dcc>] do_cpu_irq_mask+0x19c/0x1e4
[   86.580000]  [<1014a068>] intr_return+0x0/0xc
[   86.630000]  [<101ac1f8>] hrtimer_run_queues+0x1f4/0x240
[   86.700000] 
[   86.720000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-32bit+ #323
[   86.790000] Backtrace:
[   86.820000]  [<1015571c>] show_stack+0x18/0x28
[   86.870000]  [<10351234>] dump_stack+0x28/0x38
[   86.930000]  [<101558a8>] die_if_kernel+0x160/0x1d4
[   86.990000]  [<10155e08>] handle_interruption+0x250/0x754
[   87.050000]  [<103e6c08>] dev_vprintk_emit+0x194/0x1c8
[   87.110000]  [<1043828c>] process_script_interrupt+0x7b0/0xdd8
[   87.180000]  [<10438288>] process_script_interrupt+0x7ac/0xdd8
[   87.250000]  [<10439f1c>] NCR_700_intr+0xcf8/0x12c0
[   87.310000]  [<101a2c00>] handle_irq_event_percpu+0x80/0x178
[   87.380000]  [<101a2d44>] handle_irq_event+0x4c/0x84
[   87.440000]  [<101a5894>] handle_simple_irq+0x88/0xa8
[   87.500000]  [<101a23f4>] generic_handle_irq+0x2c/0x44
[   87.560000]  [<10394924>] gsc_asic_intr+0x80/0xb4
[   87.620000]  [<101a2c00>] handle_irq_event_percpu+0x80/0x178
[   87.680000]  [<101a61dc>] handle_percpu_irq+0x5c/0x88
[   87.740000]  [<101a23f4>] generic_handle_irq+0x2c/0x44
[   87.800000] 
[   87.820000] Kernel panic - not syncing: Fatal exception in interrupt


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From - Thu Nov 08 21:39:02 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: [PATCH][SCSI] 53c700: Use proper debug printk format specifiers
Date: Fri, 10 Jun 2016 22:39:45 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:26884 gmane.linux.scsi:114267
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26884>

When enabling the debug options NCR_700_DEBUG and NCR_700_TAG_DEBUG
various printk format warnings can be seen like:
drivers/scsi/53c700.c:357:2: warning: format =E2=80=98%p=E2=80=99 expec=
ts argument of type =E2=80=98void *=E2=80=99, but argument 4 has type =E2=
=80=98dma_addr_t=E2=80=99 [-Wformat=3D]
  script_patch_32(hostdata->dev, script, MessageLocation,

=46ix them by using the right printk format specifiers.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index d4c2856..56bec27 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -1892,7 +1892,7 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, v=
oid (*done)(struct scsi_cmnd *)
 		slot->SG[i].ins =3D bS_to_host(SCRIPT_RETURN);
 		slot->SG[i].pAddr =3D 0;
 		dma_cache_sync(hostdata->dev, slot->SG, sizeof(slot->SG), DMA_TO_DEV=
ICE);
-		DEBUG((" SETTING %08lx to %x\n",
+		DEBUG((" SETTING %p to %x\n",
 		       (&slot->pSG[i].ins),
 		       slot->SG[i].ins));
 	}
diff --git a/drivers/scsi/53c700.h b/drivers/scsi/53c700.h
index e06bdfe..fd32971 100644
--- a/drivers/scsi/53c700.h
+++ b/drivers/scsi/53c700.h
@@ -423,23 +423,25 @@ struct NCR_700_Host_Parameters {
 #define script_patch_32(dev, script, symbol, value) \
 { \
 	int i; \
+	dma_addr_t da =3D value; \
 	for(i=3D0; i< (sizeof(A_##symbol##_used) / sizeof(__u32)); i++) { \
-		__u32 val =3D bS_to_cpu((script)[A_##symbol##_used[i]]) + value; \
+		__u32 val =3D bS_to_cpu((script)[A_##symbol##_used[i]]) + da; \
 		(script)[A_##symbol##_used[i]] =3D bS_to_host(val); \
 		dma_cache_sync((dev), &(script)[A_##symbol##_used[i]], 4, DMA_TO_DEV=
ICE); \
-		DEBUG((" script, patching %s at %d to 0x%lx\n", \
-		       #symbol, A_##symbol##_used[i], (value))); \
+		DEBUG((" script, patching %s at %d to %pad\n", \
+		       #symbol, A_##symbol##_used[i], &da)); \
 	} \
 }
=20
 #define script_patch_32_abs(dev, script, symbol, value) \
 { \
 	int i; \
+	dma_addr_t da =3D value; \
 	for(i=3D0; i< (sizeof(A_##symbol##_used) / sizeof(__u32)); i++) { \
-		(script)[A_##symbol##_used[i]] =3D bS_to_host(value); \
+		(script)[A_##symbol##_used[i]] =3D bS_to_host(da); \
 		dma_cache_sync((dev), &(script)[A_##symbol##_used[i]], 4, DMA_TO_DEV=
ICE); \
-		DEBUG((" script, patching %s at %d to 0x%lx\n", \
-		       #symbol, A_##symbol##_used[i], (value))); \
+		DEBUG((" script, patching %s at %d to %pad\n", \
+		       #symbol, A_##symbol##_used[i], &da)); \
 	} \
 }
=20
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From - Thu Nov 08 21:39:02 2018
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From: "Ewan D. Milne" <emilne@redhat.com>
Newsgroups: gmane.linux.scsi,gmane.linux.ports.parisc
Subject: Re: kernel BUG in drivers/scsi/53c700.c:1129
Date: Fri, 10 Jun 2016 16:58:05 -0400
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To: Helge Deller <deller@gmx.de>
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I'm not sure if this is the problem, but the tagging changes to
scsi_tcq.h may have altered the 53c700 driver's assumptions.
In one case it sets sdev->current_cmnd and then some of the
tagging calls would return it if the tag was SCSI_NO_TAG.

NCR_700_queuecommand_lck() does:

        if ((hostdata->tag_negotiated & (1<<scmd_id(SCp))) &&
            SCp->device->simple_tags) {
                slot->tag = SCp->request->tag;
                CDEBUG(KERN_DEBUG, SCp, "sending out tag %d, slot %p\n",
                       slot->tag, slot);
        } else {
                slot->tag = SCSI_NO_TAG;
                /* must populate current_cmnd for scsi_host_find_tag to
work */
                SCp->device->current_cmnd = SCp;
        }

-Ewan

On Fri, 2016-06-10 at 22:25 +0200, Helge Deller wrote:
> On 10.06.2016 00:23, James Bottomley wrote:
> > On Thu, 2016-06-09 at 21:36 +0200, Helge Deller wrote:
> >> Hi James,
> >>
> >> I just tried Debian kernel 4.6.1-1 on my historic 715/64 machine, and it
> >> ran into this  BUG() in the LASI scsi driver:
> >>
> >>  scsi 0:0:6:0: no saved request for untagged cmd
> >>
> >> Any idea?
> >>
> >> Helge
> >>  
> >> [    0.000000] Linux version 4.6.0-1-parisc (debian-kernel@lists.debian.org) (gcc version 5.4.0 20160603 (Debian 5.4.0-3) ) #1 Debian 4.6.1-1 (2016-06-06)
> >> ...
> >> [    0.000000] Determining PDC firmware type: Snake.
> >> [    0.000000] model 000060a0 00000481 00000000 00000000 773c7d2c 00000000 00000004 00000072 00000072
> >> [    0.000000] vers  0000000c
> >> [    0.000000] model 9000/715
> >> [    0.000000] Total Memory: 160 MB
> >> ...
> >> [   43.180000] SCSI subsystem initialized
> >> [   45.076000] 53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
> >> [   45.156000] scsi0: 53c710 rev 2 
> >> [   46.204000] scsi host0: LASI SCSI 53c700
> >> [   58.268000] scsi 0:0:6:0: no saved request for untagged cmd
> >> [   58.336000] ------------[ cut here ]------------
> >> [   58.392000] kernel BUG at /build/linux-XAODSw/linux-4.6.1/drivers/scsi/53c700.c:1129!
> >> [   58.484000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-1-parisc #1 Debian 4.6.1-1
> >> [   58.580000] task: 1083cdd8 ti: 107b1000 task.ti: 107b1000
> >> [   58.644000] 
> >> [   58.660000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> >> [   58.716000] PSW: 00000000000001001111111100001110 Not tainted
> >> [   58.788000] r00-03  0004ff0e 0084e388 00a8ea8c 107ba400
> >> [   58.848000] r04-07  00000000 00000000 15b88cc0 00000006
> >> [   58.912000] r08-11  198ca400 000000ff 00000020 00000000
> >> [   58.976000] r12-15  000000ff 00001003 10801020 00000001
> >> [   59.036000] r16-19  107b1240 00000002 000000ff 00000001
> >> [   59.100000] r20-23  00000001 0000000e 0084f388 00000000
> >> [   59.164000] r24-27  107ba500 0083b540 1021a7a4 107b5020
> >> [   59.224000] r28-31  00000000 00000040 107ba480 104d52bc
> >> [   59.288000] sr00-03  00000000 00000000 00000000 0000000d
> >> [   59.352000] sr04-07  00000000 00000000 00000000 00000000
> >> [   59.416000] 
> >> [   59.432000] IASQ: 00000000 00000000 IAOQ: 00a8ea8c 00a8ea90
> >> [   59.500000]  IIR: 03ffe01f    ISR: 0000000d  IOR: 00a8ea90
> >> [   59.564000]  CPU:        0   CR30: 107b1000 CR31: f00effff
> >> [   59.632000]  ORIG_R28: 10855e80
> >> [   59.668000]  IAOQ[0]: process_script_interrupt+0x13ec/0x16a4 [53c700]
> >> [   59.748000]  IAOQ[1]: process_script_interrupt+0x13f0/0x16a4 [53c700]
> >> [   59.824000]  RP(r2): process_script_interrupt+0x13ec/0x16a4 [53c700]
> >> [   59.900000] Backtrace:
> >> [   59.928000]  [<00a8ea8c>] process_script_interrupt+0x13ec/0x16a4 [53c700]
> >> [   60.012000] 
> >> [   60.028000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-1-parisc #1 Debian 4.6.1-1
> >> [   60.120000] Backtrace:
> >> [   60.148000]  [<1015bffc>] show_stack+0x3c/0x50
> >> [   60.204000]  [<10425d40>] dump_stack+0x28/0x38
> >> [   60.256000]  [<1015c180>] die_if_kernel+0x134/0x20c
> >> [   60.316000]  [<1015cd34>] handle_interruption+0x804/0x828
> >> [   60.380000] 
> >> [   60.400000] Kernel panic - not syncing: Fatal exception in interrupt
> >> [   60.400000] ---[ end Kernel panic - not syncing: Fatal exception in interrupt
> > 
> > It looks like either an unsolicited reselection or possibly a spurious
> > interrupt left over from something.  Can you define NCR_700_DEBUG in
> > drivers/scsi/53c700.h and see what it says?
> 
> I enabled NCR_700_DEBUG and NCR_700_TAG_DEBUG.
> This is from vanilla kernel 4.6:
> 
> [    8.700000] Uniform Multi-Platform E-IDE driver
> [    8.760000] ide-gd driver 1.18
> [    8.790000] ide-cd driver 5.00
> [    8.860000]  script, patching MessageLocation at 31 to 0x09f684b0
> [    8.930000]  script, patching StatusAddress at 281 to 0x09f684d0
> [    9.000000]  script, patching ReceiveMsgAddress at 15 to 0x09f684c0
> [    9.080000]  script, patching ReceiveMsgAddress at 19 to 0x09f684c0
> [    9.150000]  script, patching ReceiveMsgAddress at 41 to 0x09f684c0
> [    9.230000]  script, patching ReceiveMsgAddress at 49 to 0x09f684c0
> [    9.300000]  script, patching ReceiveMsgAddress at 55 to 0x09f684c0
> [    9.370000]  script, patching ReceiveMsgAddress at 71 to 0x09f684c0
> [    9.450000]  script, patching ReceiveMsgAddress at 77 to 0x09f684c0
> [    9.520000]  script, patching ReceiveMsgAddress at 83 to 0x09f684c0
> [    9.600000]  script, patching ReceiveMsgAddress at 89 to 0x09f684c0
> [    9.670000]  script, patching ReceiveMsgAddress at 95 to 0x09f684c0
> [    9.750000]  script, patching ReceiveMsgAddress at 137 to 0x09f684c0
> [    9.830000]  script, patching ReceiveMsgAddress at 147 to 0x09f684c0
> [    9.900000]  script, patching ReceiveMsgAddress at 177 to 0x09f684c0
> [    9.980000]  script, patching ReceiveMsgAddress at 215 to 0x09f684c0
> [   10.050000]  script, patching ReceiveMsgAddress at 251 to 0x09f684c0
> [   10.130000]  script, patching ReceiveMsgAddress at 285 to 0x09f684c0
> [   10.210000] 53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
> [   10.290000] scsi0: 53c710 rev 2 
> [   11.330000] 53c700: sync 1 async 2
> [   11.370000] scsi host0: LASI SCSI 53c700
> [   11.430000] 53c700: scsi0, command 
> [   11.430000] scsi 0:0:0:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
> [   11.430000]  scatter block 0: move 36[09000024] from 0x9d66100
> [   11.430000]  SETTING 09f684e8 to 90080000
> [   11.430000]  script, patching short field MessageCount at 30 to 0xe000006
> [   11.430000]  script, patching ID field Device_ID at 0 to 0x41010000
> [   11.430000]  script, patching CommandAddress at 121 to 0x09c0d3c8
> [   11.430000]  script, patching short field CommandCount at 120 to 0xa000006
> [   11.430000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
> [   11.430000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
> [   32.090000] scsi 0:0:0:0: tag#0 abort command
> [   32.140000] scsi 0:0:0:0: tag#0 New error handler wants BUS reset, cmd 19f72d20
> [   32.140000] 
> [   32.240000] scsi 0:0:0:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
> [   32.320000] scsi0: istat 02 sstat0 02 dstat 00 dsp 0002[09f68008] dsps 0x9f68020
> [   32.320000] scsi0: Bus Reset detected, executing command 19f72d20, slot 000084e0, dsp 09f68008[0008]
> [   32.320000]  failing command because of reset, slot 000084e0, cmnd 19f72d20
> [   32.320000] 53c700: sync 1 async 2
> [   42.670000] 53c700: scsi0, command 
> [   42.670000] scsi 0:0:0:0: tag#0 CDB: opcode=0x0 00 00 00 00 00 00
> [   42.670000]  script, patching short field MessageCount at 30 to 0xe000006
> [   42.670000]  script, patching ID field Device_ID at 0 to 0x41010000
> [   42.670000]  script, patching CommandAddress at 121 to 0x09fa03f4
> [   42.670000]  script, patching short field CommandCount at 120 to 0xa000006
> [   42.670000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
> [   42.670000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
> [   43.260000] scsi 0:0:0:0: tag#0 abort command
> [   43.310000] scsi0: istat 02 sstat0 02 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
> [   43.310000] scsi0: Bus Reset detected, executing command 19f72d20, slot 000084e0, dsp 09f68010[0010]
> [   43.310000]  failing command because of reset, slot 000084e0, cmnd 19f72d20
> [   43.310000] 53c700: sync 1 async 2
> [   43.650000] scsi 0:0:0:0: tag#0 New error handler wants BUS reset, cmd 19f72d20
> [   43.650000] 
> [   43.760000] scsi 0:0:0:0: tag#0 CDB: opcode=0x0 00 00 00 00 00 00
> [   43.830000] scsi0: istat 02 sstat0 02 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
> [   43.830000] scsi0: Bus Reset detected, executing command   (null), slot   (null), dsp 09f68010[0010]
> [   43.830000] 53c700: sync 1 async 2
> [   54.110000] scsi 0:0:0:0: tag#0 New error handler wants HOST reset
> [   54.110000] 
> [   54.200000] scsi 0:0:0:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
> [   54.270000] 53c700: sync 1 async 2
> [   54.270000] timer_interrupt(CPU 0): delayed! cycles 3F77F5E rem 20A2  next/now 90731E60/9072FDBE
> [   65.430000] 53c700: scsi0, command 
> [   65.430000] scsi 0:0:0:0: tag#0 CDB: opcode=0x0 00 00 00 00 00 00
> [   65.430000]  script, patching short field MessageCount at 30 to 0xe000006
> [   65.430000]  script, patching ID field Device_ID at 0 to 0x41010000
> [   65.430000]  script, patching CommandAddress at 121 to 0x09fa03f4
> [   65.430000]  script, patching short field CommandCount at 120 to 0xa000006
> [   65.430000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
> [   65.430000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
> [   66.020000] scsi 0:0:0:0: tag#0 abort command
> [   66.070000] scsi0: istat 02 sstat0 02 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
> [   66.070000] scsi0: Bus Reset detected, executing command 19f72d20, slot 000084e0, dsp 09f68010[0010]
> [   66.070000]  failing command because of reset, slot 000084e0, cmnd 19f72d20
> [   66.070000] 53c700: sync 1 async 2
> [   66.410000] scsi 0:0:0:0: tag#0 New error handler wants BUS reset, cmd 19f72d20
> [   66.410000] 
> [   66.520000] scsi 0:0:0:0: tag#0 CDB: opcode=0x0 00 00 00 00 00 00
> [   66.590000] scsi0: istat 02 sstat0 02 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
> [   66.590000] scsi0: Bus Reset detected, executing command   (null), slot   (null), dsp 09f68010[0010]
> [   66.590000] 53c700: sync 1 async 2
> [   76.870000] scsi 0:0:0:0: Device offlined - not ready after error recovery
> [   76.950000] 53c700: scsi0, command 
> [   76.950000] scsi 0:0:1:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
> [   76.950000]  scatter block 0: move 36[09000024] from 0x9d66100
> [   76.950000]  SETTING 09f684e8 to 90080000
> [   76.950000]  script, patching short field MessageCount at 30 to 0xe000006
> [   76.950000]  script, patching ID field Device_ID at 0 to 0x41020000
> [   76.950000]  script, patching CommandAddress at 121 to 0x09c0d3c8
> [   76.950000]  script, patching short field CommandCount at 120 to 0xa000006
> [   76.950000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
> [   76.950000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
> [   77.970000] scsi0: istat 02 sstat0 20 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
> [   77.970000] scsi0: (1:0) selection timeout
> [   78.110000] 53c700: scsi0, command 
> [   78.110000] scsi 0:0:2:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
> [   78.110000]  scatter block 0: move 36[09000024] from 0x9d66100
> [   78.110000]  SETTING 09f684e8 to 90080000
> [   78.110000]  script, patching short field MessageCount at 30 to 0xe000006
> [   78.110000]  script, patching ID field Device_ID at 0 to 0x41040000
> [   78.110000]  script, patching CommandAddress at 121 to 0x09c0d3c8
> [   78.110000]  script, patching short field CommandCount at 120 to 0xa000006
> [   78.110000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
> [   78.110000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
> [   79.120000] scsi0: istat 02 sstat0 20 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
> [   79.120000] scsi0: (2:0) selection timeout
> [   79.270000] 53c700: scsi0, command 
> [   79.270000] scsi 0:0:3:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
> [   79.270000]  scatter block 0: move 36[09000024] from 0x9d66100
> [   79.270000]  SETTING 09f684e8 to 90080000
> [   79.270000]  script, patching short field MessageCount at 30 to 0xe000006
> [   79.270000]  script, patching ID field Device_ID at 0 to 0x41080000
> [   79.270000]  script, patching CommandAddress at 121 to 0x09c0d3c8
> [   79.270000]  script, patching short field CommandCount at 120 to 0xa000006
> [   79.270000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
> [   79.270000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
> [   80.280000] scsi0: istat 02 sstat0 20 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
> [   80.280000] scsi0: (3:0) selection timeout
> [   80.420000] 53c700: scsi0, command 
> [   80.420000] scsi 0:0:4:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
> [   80.420000]  scatter block 0: move 36[09000024] from 0x9d66100
> [   80.420000]  SETTING 09f684e8 to 90080000
> [   80.420000]  script, patching short field MessageCount at 30 to 0xe000006
> [   80.420000]  script, patching ID field Device_ID at 0 to 0x41100000
> [   80.420000]  script, patching CommandAddress at 121 to 0x09c0d3c8
> [   80.420000]  script, patching short field CommandCount at 120 to 0xa000006
> [   80.420000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
> [   80.420000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
> [   81.440000] scsi0: istat 02 sstat0 20 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
> [   81.440000] scsi0: (4:0) selection timeout
> [   81.580000] 53c700: scsi0, command 
> [   81.580000] scsi 0:0:5:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
> [   81.580000]  scatter block 0: move 36[09000024] from 0x9d66100
> [   81.580000]  SETTING 09f684e8 to 90080000
> [   81.580000]  script, patching short field MessageCount at 30 to 0xe000006
> [   81.580000]  script, patching ID field Device_ID at 0 to 0x41200000
> [   81.580000]  script, patching CommandAddress at 121 to 0x09c0d3c8
> [   81.580000]  script, patching short field CommandCount at 120 to 0xa000006
> [   81.580000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
> [   81.580000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
> [   82.590000] scsi0: istat 02 sstat0 20 dstat 00 dsp 0004[09f68010] dsps 0x9f68460
> [   82.590000] scsi0: (5:0) selection timeout
> [   82.740000] 53c700: scsi0, command 
> [   82.740000] scsi 0:0:6:0: tag#0 CDB: opcode=0x12 12 00 00 00 24 00
> [   82.740000]  scatter block 0: move 36[09000024] from 0x9d66100
> [   82.740000]  SETTING 09f684e8 to 90080000
> [   82.740000]  script, patching short field MessageCount at 30 to 0xe000006
> [   82.740000]  script, patching ID field Device_ID at 0 to 0x41400000
> [   82.740000]  script, patching CommandAddress at 121 to 0x09c0d3c8
> [   82.740000]  script, patching short field CommandCount at 120 to 0xa000006
> [   82.740000]  script, patching SGScriptStartAddress at 191 to 0x09f684e0
> [   82.740000]  script, patching SGScriptStartAddress at 207 to 0x09f684e0
> [   83.440000] scsi0: istat 09 sstat0 00 dstat 84 dsp 00ba[09f682e8] dsps 0x250
> [   83.440000] scsi0: (6:0) ====>SCRIPT INTERRUPT<====
> [   83.440000] scsi0 (6:0): message before command phase: 01 03 01 00 00 
> [   83.440000] Attempting to resume at 9f682e8
> [   83.710000] scsi0: istat 01 sstat0 00 dstat 84 dsp 00ac[09f682b0] dsps 0x380
> [   83.710000] scsi0: (6:0) ====>SCRIPT INTERRUPT<====
> [   83.710000] scsi0: (6:0), DISCONNECTED (3) after command phase
> [   83.920000] scsi0: istat 0a sstat0 10 dstat 00 dsp 00ac[09f682b0] dsps 0x380
> [   83.920000] scsi0:  Reselected by 6
> [   83.920000] Attempting to resume at 9f68038
> [   84.100000] scsi0: istat 09 sstat0 00 dstat 84 dsp 0012[09f68048] dsps 0x1003
> [   84.100000] scsi0: (255:255) ====>SCRIPT INTERRUPT<====
> [   84.100000] scsi0: (6:0) RESELECTED!
> [   84.100000] scsi 0:0:6:0: no saved request for untagged cmd
> [   84.360000] ------------[ cut here ]------------
> [   84.410000] kernel BUG at /home/cvs/parisc/git-kernel/linus-linux-2.6/drivers/scsi/53c700.c:1129!
> [   84.520000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-32bit+ #323
> [   84.590000] task: 10732288 ti: 1072b000 task.ti: 1072b000
> [   84.660000] 
> [   84.680000]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> [   84.730000] PSW: 00000000000001001111111100001110 Not tainted
> [   84.800000] r00-03  0004ff0e 1077a24c 10438288 10735940
> [   84.860000] r04-07  19f63d80 00000000 09f68048 00000006
> [   84.930000] r08-11  19d5e000 19fa6c00 00000020 10669d30
> [   84.990000] r12-15  00000084 000000ff 00000000 00200000
> [   85.050000] r16-19  10735280 00000002 00000000 00000001
> [   85.110000] r20-23  00000001 0000000e 1077b24c 103cfbac
> [   85.180000] r24-27  00000000 0000000e 00000000 1072f030
> [   85.240000] r28-31  00000000 00000119 107359c0 103d2adc
> [   85.300000] sr00-03  00000000 00000000 00000000 00000000
> [   85.360000] sr04-07  00000000 00000000 00000000 00000000
> [   85.430000] 
> [   85.450000] IASQ: 00000000 00000000 IAOQ: 10438288 1043828c
> [   85.510000]  IIR: 03ffe01f    ISR: 00000000  IOR: 107359c0
> [   85.580000]  CPU:        0   CR30: 1072b000 CR31: f00effff
> [   85.640000]  ORIG_R28: 00000000
> [   85.680000]  IAOQ[0]: process_script_interrupt+0x7ac/0xdd8
> [   85.750000]  IAOQ[1]: process_script_interrupt+0x7b0/0xdd8
> [   85.810000]  RP(r2): process_script_interrupt+0x7ac/0xdd8
> [   85.880000] Backtrace:
> [   85.900000]  [<10439f1c>] NCR_700_intr+0xcf8/0x12c0
> [   85.960000]  [<101a2c00>] handle_irq_event_percpu+0x80/0x178
> [   86.030000]  [<101a2d44>] handle_irq_event+0x4c/0x84
> [   86.090000]  [<101a5894>] handle_simple_irq+0x88/0xa8
> [   86.150000]  [<101a23f4>] generic_handle_irq+0x2c/0x44
> [   86.210000]  [<10394924>] gsc_asic_intr+0x80/0xb4
> [   86.270000]  [<101a2c00>] handle_irq_event_percpu+0x80/0x178
> [   86.340000]  [<101a61dc>] handle_percpu_irq+0x5c/0x88
> [   86.400000]  [<101a23f4>] generic_handle_irq+0x2c/0x44
> [   86.460000]  [<10156688>] execute_on_irq_stack+0x40/0x70
> [   86.520000]  [<10156dcc>] do_cpu_irq_mask+0x19c/0x1e4
> [   86.580000]  [<1014a068>] intr_return+0x0/0xc
> [   86.630000]  [<101ac1f8>] hrtimer_run_queues+0x1f4/0x240
> [   86.700000] 
> [   86.720000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0-32bit+ #323
> [   86.790000] Backtrace:
> [   86.820000]  [<1015571c>] show_stack+0x18/0x28
> [   86.870000]  [<10351234>] dump_stack+0x28/0x38
> [   86.930000]  [<101558a8>] die_if_kernel+0x160/0x1d4
> [   86.990000]  [<10155e08>] handle_interruption+0x250/0x754
> [   87.050000]  [<103e6c08>] dev_vprintk_emit+0x194/0x1c8
> [   87.110000]  [<1043828c>] process_script_interrupt+0x7b0/0xdd8
> [   87.180000]  [<10438288>] process_script_interrupt+0x7ac/0xdd8
> [   87.250000]  [<10439f1c>] NCR_700_intr+0xcf8/0x12c0
> [   87.310000]  [<101a2c00>] handle_irq_event_percpu+0x80/0x178
> [   87.380000]  [<101a2d44>] handle_irq_event+0x4c/0x84
> [   87.440000]  [<101a5894>] handle_simple_irq+0x88/0xa8
> [   87.500000]  [<101a23f4>] generic_handle_irq+0x2c/0x44
> [   87.560000]  [<10394924>] gsc_asic_intr+0x80/0xb4
> [   87.620000]  [<101a2c00>] handle_irq_event_percpu+0x80/0x178
> [   87.680000]  [<101a61dc>] handle_percpu_irq+0x5c/0x88
> [   87.740000]  [<101a23f4>] generic_handle_irq+0x2c/0x44
> [   87.800000] 
> [   87.820000] Kernel panic - not syncing: Fatal exception in interrupt
> 
> 
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From - Thu Nov 08 21:39:02 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.scsi,gmane.linux.ports.parisc
Subject: Re: kernel BUG in drivers/scsi/53c700.c:1129
Date: Fri, 10 Jun 2016 14:01:13 -0700
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On Fri, 2016-06-10 at 16:58 -0400, Ewan D. Milne wrote:
> I'm not sure if this is the problem, but the tagging changes to
> scsi_tcq.h may have altered the 53c700 driver's assumptions.
> In one case it sets sdev->current_cmnd and then some of the
> tagging calls would return it if the tag was SCSI_NO_TAG.
> 
> NCR_700_queuecommand_lck() does:
> 
>         if ((hostdata->tag_negotiated & (1<<scmd_id(SCp))) &&
>             SCp->device->simple_tags) {
>                 slot->tag = SCp->request->tag;
>                 CDEBUG(KERN_DEBUG, SCp, "sending out tag %d, slot
> %p\n",
>                        slot->tag, slot);
>         } else {
>                 slot->tag = SCSI_NO_TAG;
>                 /* must populate current_cmnd for scsi_host_find_tag
> to
> work */
>                 SCp->device->current_cmnd = SCp;
>         }

Thanks ... I was just about to look for something this.  I'd got to
interpreting the script as reselected with tag information present and
then trying to look the command up with no tag present, hence the
BUG().

James


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From - Thu Nov 08 21:39:02 2018
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Path: news.gmane.org!not-for-mail
From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: Re: kernel BUG in drivers/scsi/53c700.c:1129
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On Fri, 2016-06-10 at 14:01 -0700, James Bottomley wrote:
> On Fri, 2016-06-10 at 16:58 -0400, Ewan D. Milne wrote:
> > I'm not sure if this is the problem, but the tagging changes to
> > scsi_tcq.h may have altered the 53c700 driver's assumptions.
> > In one case it sets sdev->current_cmnd and then some of the
> > tagging calls would return it if the tag was SCSI_NO_TAG.
> > 
> > NCR_700_queuecommand_lck() does:
> > 
> >         if ((hostdata->tag_negotiated & (1<<scmd_id(SCp))) &&
> >             SCp->device->simple_tags) {
> >                 slot->tag = SCp->request->tag;
> >                 CDEBUG(KERN_DEBUG, SCp, "sending out tag %d, slot
> > %p\n",
> >                        slot->tag, slot);
> >         } else {
> >                 slot->tag = SCSI_NO_TAG;
> >                 /* must populate current_cmnd for
> > scsi_host_find_tag
> > to
> > work */
> >                 SCp->device->current_cmnd = SCp;
> >         }
> 
> Thanks ... I was just about to look for something this.  I'd got to
> interpreting the script as reselected with tag information present 
> and then trying to look the command up with no tag present, hence the
> BUG().

Yes, you're right, it's

commit 64d513ac31bd02a3c9b69ef04444f36c196f9a9d
Author: Christoph Hellwig <hch@lst.de>
Date:   Thu Oct 8 09:28:04 2015 +0100

    scsi: use host wide tags by default

Again.  This time because it's transformation of the handling of
SCSI_NO_TAG is wrong.  You can't replace the return sdev->current_cmnd
original in scsi_find_tag with the NULL return in scsi_find_host_tag.

I think this changesets wins the prize for the greatest number of
generated faults.

Does this fix 53c700.c?

I suppose we'd better look for other places where no tag fell through
...

James

---

diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index d4c2856..3ddc85e 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -1122,7 +1122,7 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
 		} else {
 			struct scsi_cmnd *SCp;
 
-			SCp = scsi_host_find_tag(SDp->host, SCSI_NO_TAG);
+			SCp = SDp->current_cmnd;
 			if(unlikely(SCp == NULL)) {
 				sdev_printk(KERN_ERR, SDp,
 					"no saved request for untagged cmd\n");
@@ -1826,7 +1826,7 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
 		       slot->tag, slot);
 	} else {
 		slot->tag = SCSI_NO_TAG;
-		/* must populate current_cmnd for scsi_host_find_tag to work */
+		/* save current command for reselection */
 		SCp->device->current_cmnd = SCp;
 	}
 	/* sanity check: some of the commands generated by the mid-layer
--
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.scsi,gmane.linux.ports.parisc
Subject: Re: kernel BUG in drivers/scsi/53c700.c:1129
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On Fri, 2016-06-10 at 14:33 -0700, James Bottomley wrote:
> On Fri, 2016-06-10 at 14:01 -0700, James Bottomley wrote:
> > On Fri, 2016-06-10 at 16:58 -0400, Ewan D. Milne wrote:
> > > I'm not sure if this is the problem, but the tagging changes to
> > > scsi_tcq.h may have altered the 53c700 driver's assumptions.
> > > In one case it sets sdev->current_cmnd and then some of the
> > > tagging calls would return it if the tag was SCSI_NO_TAG.
> > > 
> > > NCR_700_queuecommand_lck() does:
> > > 
> > >         if ((hostdata->tag_negotiated & (1<<scmd_id(SCp))) &&
> > >             SCp->device->simple_tags) {
> > >                 slot->tag = SCp->request->tag;
> > >                 CDEBUG(KERN_DEBUG, SCp, "sending out tag %d, slot
> > > %p\n",
> > >                        slot->tag, slot);
> > >         } else {
> > >                 slot->tag = SCSI_NO_TAG;
> > >                 /* must populate current_cmnd for
> > > scsi_host_find_tag
> > > to
> > > work */
> > >                 SCp->device->current_cmnd = SCp;
> > >         }
> > 
> > Thanks ... I was just about to look for something this.  I'd got to
> > interpreting the script as reselected with tag information present 
> > and then trying to look the command up with no tag present, hence
> > the
> > BUG().
> 
> Yes, you're right, it's
> 
> commit 64d513ac31bd02a3c9b69ef04444f36c196f9a9d
> Author: Christoph Hellwig <hch@lst.de>
> Date:   Thu Oct 8 09:28:04 2015 +0100
> 
>     scsi: use host wide tags by default
> 
> Again.  This time because it's transformation of the handling of
> SCSI_NO_TAG is wrong.  You can't replace the return sdev
> ->current_cmnd
> original in scsi_find_tag with the NULL return in scsi_find_host_tag.
> 
> I think this changesets wins the prize for the greatest number of
> generated faults.
> 
> Does this fix 53c700.c?
> 
> I suppose we'd better look for other places where no tag fell through
> ...

OK, I checked: snic and fnic use SCSI_NO_TAG but they don't save
anything in current_cmnd, so they can't rely on the original behaviour.
 I think we'll be safe with a local change in 53c700.c

James


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Subject: Re: kernel BUG in drivers/scsi/53c700.c:1129
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On 10.06.2016 23:33, James Bottomley wrote:
> On Fri, 2016-06-10 at 14:01 -0700, James Bottomley wrote:
>> On Fri, 2016-06-10 at 16:58 -0400, Ewan D. Milne wrote:
>>> I'm not sure if this is the problem, but the tagging changes to
>>> scsi_tcq.h may have altered the 53c700 driver's assumptions.
>>> In one case it sets sdev->current_cmnd and then some of the
>>> tagging calls would return it if the tag was SCSI_NO_TAG.
>>>
>>> NCR_700_queuecommand_lck() does:
>>>
>>>         if ((hostdata->tag_negotiated & (1<<scmd_id(SCp))) &&
>>>             SCp->device->simple_tags) {
>>>                 slot->tag = SCp->request->tag;
>>>                 CDEBUG(KERN_DEBUG, SCp, "sending out tag %d, slot
>>> %p\n",
>>>                        slot->tag, slot);
>>>         } else {
>>>                 slot->tag = SCSI_NO_TAG;
>>>                 /* must populate current_cmnd for
>>> scsi_host_find_tag
>>> to
>>> work */
>>>                 SCp->device->current_cmnd = SCp;
>>>         }
>>
>> Thanks ... I was just about to look for something this.  I'd got to
>> interpreting the script as reselected with tag information present 
>> and then trying to look the command up with no tag present, hence the
>> BUG().
> 
> Yes, you're right, it's
> 
> commit 64d513ac31bd02a3c9b69ef04444f36c196f9a9d
> Author: Christoph Hellwig <hch@lst.de>
> Date:   Thu Oct 8 09:28:04 2015 +0100
> 
>     scsi: use host wide tags by default
> 
> Again.  This time because it's transformation of the handling of
> SCSI_NO_TAG is wrong.  You can't replace the return sdev->current_cmnd
> original in scsi_find_tag with the NULL return in scsi_find_host_tag.
> 
> I think this changesets wins the prize for the greatest number of
> generated faults.
> 
> Does this fix 53c700.c?

Yes, the patch below fixes the boot problems for 53c700.c:

[    9.869236] 53c700: Version 2.8 By James.Bottomley@HansenPartnership.com
[    9.949797] scsi0: 53c710 rev 2 
[   10.994453] scsi host0: LASI SCSI 53c700
[   13.008861] scsi 0:0:6:0: Direct-Access     QUANTUM  FIREBALL_TM3200S 300X PQ: 0 ANSI: 2
[   13.106740] scsi target0:0:6: Beginning Domain Validation
[   13.171889] scsi 0:0:6:0: tag#0 Enabling Tag Command Queuing
[   13.239996] scsi target0:0:6: asynchronous
[   13.305374] scsi target0:0:6: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 8)
[   13.397482] scsi target0:0:6: Domain Validation skipping write tests
[   13.473831] scsi target0:0:6: Ending Domain Validation
[   13.557116] scsi 0:0:6:1: tag#0 Disabling Tag Command Queuing
[   13.637379] st: Version 20160209, fixed bufsize 32768, s/g segs 256
[   13.746803] sd 0:0:6:0: Attached scsi generic sg0 type 0

THANKS!
(please queue the patch up for 4.6-stable at least)
Helge

 
> I suppose we'd better look for other places where no tag fell through
> ...
> 
> James
> 
> ---
> 
> diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
> index d4c2856..3ddc85e 100644
> --- a/drivers/scsi/53c700.c
> +++ b/drivers/scsi/53c700.c
> @@ -1122,7 +1122,7 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
>  		} else {
>  			struct scsi_cmnd *SCp;
>  
> -			SCp = scsi_host_find_tag(SDp->host, SCSI_NO_TAG);
> +			SCp = SDp->current_cmnd;
>  			if(unlikely(SCp == NULL)) {
>  				sdev_printk(KERN_ERR, SDp,
>  					"no saved request for untagged cmd\n");
> @@ -1826,7 +1826,7 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
>  		       slot->tag, slot);
>  	} else {
>  		slot->tag = SCSI_NO_TAG;
> -		/* must populate current_cmnd for scsi_host_find_tag to work */
> +		/* save current command for reselection */
>  		SCp->device->current_cmnd = SCp;
>  	}
>  	/* sanity check: some of the commands generated by the mid-layer
> 

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Subject: Re: [PATCH v4 6/7] parisc: use the new LED disk activity trigger
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Hi all,

For consistency reasons this patch should be merged through LED tree,
but I need an ack for this. Hedge, James?

Thanks,
Jacek Anaszewski


On 06/10/2016 08:00 AM, Stephan Linz wrote:
> - platform: rename 'ide-disk' to 'disk-activity'
>
> Signed-off-by: Stephan Linz <linz@li-pro.net>
> ---
>   arch/parisc/configs/generic-32bit_defconfig | 2 +-
>   arch/parisc/configs/generic-64bit_defconfig | 2 +-
>   2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig
> index 5b04d70..8688ba7 100644
> --- a/arch/parisc/configs/generic-32bit_defconfig
> +++ b/arch/parisc/configs/generic-32bit_defconfig
> @@ -214,7 +214,7 @@ CONFIG_NEW_LEDS=y
>   CONFIG_LEDS_CLASS=y
>   CONFIG_LEDS_TRIGGERS=y
>   CONFIG_LEDS_TRIGGER_TIMER=y
> -CONFIG_LEDS_TRIGGER_IDE_DISK=y
> +CONFIG_LEDS_TRIGGER_DISK=y
>   CONFIG_LEDS_TRIGGER_HEARTBEAT=y
>   CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
>   CONFIG_DMADEVICES=y
> diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig
> index e945c08..7e07926 100644
> --- a/arch/parisc/configs/generic-64bit_defconfig
> +++ b/arch/parisc/configs/generic-64bit_defconfig
> @@ -231,7 +231,7 @@ CONFIG_LEDS_CLASS=y
>   CONFIG_LEDS_TRIGGERS=y
>   CONFIG_LEDS_TRIGGER_TIMER=y
>   CONFIG_LEDS_TRIGGER_ONESHOT=y
> -CONFIG_LEDS_TRIGGER_IDE_DISK=y
> +CONFIG_LEDS_TRIGGER_DISK=y
>   CONFIG_LEDS_TRIGGER_HEARTBEAT=m
>   CONFIG_LEDS_TRIGGER_BACKLIGHT=m
>   CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
>


-- 
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On Fri, Jun 10, 2016 at 02:43:52PM -0700, James Bottomley wrote:
> OK, I checked: snic and fnic use SCSI_NO_TAG but they don't save
> anything in current_cmnd, so they can't rely on the original behaviour.
>  I think we'll be safe with a local change in 53c700.c

Please move the current_cmnd field in struct scsi_device into the 53c700
driver while you're at it, so that others don't accidentally rely on it.
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Hi Jacek,

On 13.06.2016 09:56, Jacek Anaszewski wrote:
> For consistency reasons this patch should be merged through LED tree,
> but I need an ack for this. Hedge, James?

Ok, sure.

> On 06/10/2016 08:00 AM, Stephan Linz wrote:
>> - platform: rename 'ide-disk' to 'disk-activity'
>>
>> Signed-off-by: Stephan Linz <linz@li-pro.net>

Acked-by: Helge Deller <deller@gmx.de>

Thanks for the patch!
Helge

>> ---
>>   arch/parisc/configs/generic-32bit_defconfig | 2 +-
>>   arch/parisc/configs/generic-64bit_defconfig | 2 +-
>>   2 files changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig
>> index 5b04d70..8688ba7 100644
>> --- a/arch/parisc/configs/generic-32bit_defconfig
>> +++ b/arch/parisc/configs/generic-32bit_defconfig
>> @@ -214,7 +214,7 @@ CONFIG_NEW_LEDS=y
>>   CONFIG_LEDS_CLASS=y
>>   CONFIG_LEDS_TRIGGERS=y
>>   CONFIG_LEDS_TRIGGER_TIMER=y
>> -CONFIG_LEDS_TRIGGER_IDE_DISK=y
>> +CONFIG_LEDS_TRIGGER_DISK=y
>>   CONFIG_LEDS_TRIGGER_HEARTBEAT=y
>>   CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
>>   CONFIG_DMADEVICES=y
>> diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig
>> index e945c08..7e07926 100644
>> --- a/arch/parisc/configs/generic-64bit_defconfig
>> +++ b/arch/parisc/configs/generic-64bit_defconfig
>> @@ -231,7 +231,7 @@ CONFIG_LEDS_CLASS=y
>>   CONFIG_LEDS_TRIGGERS=y
>>   CONFIG_LEDS_TRIGGER_TIMER=y
>>   CONFIG_LEDS_TRIGGER_ONESHOT=y
>> -CONFIG_LEDS_TRIGGER_IDE_DISK=y
>> +CONFIG_LEDS_TRIGGER_DISK=y
>>   CONFIG_LEDS_TRIGGER_HEARTBEAT=m
>>   CONFIG_LEDS_TRIGGER_BACKLIGHT=m
>>   CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
>>
> 
> 

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From - Thu Nov 08 21:39:03 2018
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(Oops, forgot to send this series through the lsm list...)

On Thu, Jun 9, 2016 at 2:01 PM, Kees Cook <keescook@chromium.org> wrote:
> There has been a long-standing (and documented) issue with seccomp
> where ptrace can be used to change a syscall out from under seccomp.
> This is a problem for containers and other wider seccomp filtered
> environments where ptrace needs to remain available, as it allows
> for an escape of the seccomp filter.
>
> Since the ptrace attack surface is available for any allowed syscall,
> moving seccomp after ptrace doesn't increase the actually available
> attack surface. And this actually improves tracing since, for
> example, tracers will be notified of syscall entry before seccomp
> sends a SIGSYS, which makes debugging filters much easier.
>
> The per-architecture changes do make one (hopefully small)
> semantic change, which is that since ptrace comes first, it may
> request a syscall be skipped. Running seccomp after this doesn't
> make sense, so if ptrace wants to skip a syscall, it will bail
> out early similarly to how seccomp was. This means that skipped
> syscalls will not be fed through audit, though that likely means
> we're actually avoiding noise this way.
>
> This series first cleans up seccomp to remove the now unneeded
> two-phase entry, fixes the SECCOMP_RET_TRACE hole (same as the
> ptrace hole above), and then reorders seccomp after ptrace on
> each architecture.

Has anyone else had a chance to review this series? I'd like to get it
landed in -next as early as possible in case there are unexpected
problems...

-Kees

-- 
Kees Cook
Chrome OS & Brillo Security


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To: Kees Cook <keescook@chromium.org>
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On Thu, Jun 9, 2016 at 3:52 PM, Andy Lutomirski <luto@amacapital.net> wrote:
> On Thu, Jun 9, 2016 at 2:01 PM, Kees Cook <keescook@chromium.org> wrote:
>> This moves seccomp after ptrace on x86 to that seccomp can catch changes
>> made by ptrace. Emulation should skip the rest of processing too.
>>
>> We can get rid of test_thread_flag because there's no longer any
>> opportunity for seccomp to mess with ptrace state before invoking
>> ptrace.
>>
>> Suggested-by: Andy Lutomirski <luto@kernel.org>
>> Signed-off-by: Kees Cook <keescook@chromium.org>
>> Cc: x86@kernel.org
>> Cc: Andy Lutomirski <luto@kernel.org>
>> ---
>>  arch/x86/entry/common.c | 22 ++++++++++++----------
>>  1 file changed, 12 insertions(+), 10 deletions(-)
>>
>> diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
>> index df56ca394877..81c0e12d831c 100644
>> --- a/arch/x86/entry/common.c
>> +++ b/arch/x86/entry/common.c
>> @@ -73,6 +73,7 @@ static long syscall_trace_enter(struct pt_regs *regs)
>>
>>         struct thread_info *ti = pt_regs_to_thread_info(regs);
>>         unsigned long ret = 0;
>> +       bool emulated = false;
>>         u32 work;
>>
>>         if (IS_ENABLED(CONFIG_DEBUG_ENTRY))
>> @@ -80,11 +81,19 @@ static long syscall_trace_enter(struct pt_regs *regs)
>>
>>         work = ACCESS_ONCE(ti->flags) & _TIF_WORK_SYSCALL_ENTRY;
>>
>> +       if (unlikely(work & _TIF_SYSCALL_EMU))
>> +               emulated = true;
>> +
>> +       if ((emulated || (work & _TIF_SYSCALL_TRACE)) &&
>> +           tracehook_report_syscall_entry(regs))
>> +               return -1L;
>> +
>> +       if (emulated)
>> +               return -1L;
>> +
>
> I think that this code will result in ptrace-induced skips calling the
> audit exit hook but not the audit entry hook.  I don't know whether
> this is a problem.  It's also worth making sure that ptracing a
> seccomp-skipped syscall calls the exit hook with the right regs.
>
> I suspect it's fine, but I want to think about it a little bit more.

I poked at it a bit and this seems to work correctly.
selftests/x86/ptrace_syscall.c exercises PTRACE_SYSCALL_EMU pretty
well, and it still passes.

--Andy

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The untagged command case in the 53c700 driver has been broken since
host wide tags were enabled because the replaced scsi_find_tag()
function had a special case for the tag value SCSI_NO_TAG to retrieve
sdev->current_cmnd.  The replacement function scsi_host_find_tag() has
no such special case and returns NULL causing untagged commands to
trigger a BUG() in the driver.  Inspection shows that the 53c700 is the
only driver using this SCSI_NO_TAG case, so a local fix in the driver
suffices to fix this problem globally.

Fixes: 64d513ac31b - "scsi: use host wide tags by default"
Cc: stable@vger.kernel.org	# 4.4+
Reported-by: Helge Deller <deller@gmx.de>
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>

---

diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index d4c2856..3ddc85e 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -1122,7 +1122,7 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
 		} else {
 			struct scsi_cmnd *SCp;
 
-			SCp = scsi_host_find_tag(SDp->host, SCSI_NO_TAG);
+			SCp = SDp->current_cmnd;
 			if(unlikely(SCp == NULL)) {
 				sdev_printk(KERN_ERR, SDp,
 					"no saved request for untagged cmd\n");
@@ -1826,7 +1826,7 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
 		       slot->tag, slot);
 	} else {
 		slot->tag = SCSI_NO_TAG;
-		/* must populate current_cmnd for scsi_host_find_tag to work */
+		/* save current command for reselection */
 		SCp->device->current_cmnd = SCp;
 	}
 	/* sanity check: some of the commands generated by the mid-layer


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From: Amitoj Kaur Chawla <amitoj1606@gmail.com>
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Subject: [PATCH] parisc: Change structure intialisation to C99 style
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Replace the in order struct initialisation style with explicit field
style.

The Coccinelle semantic patch used to make this change is as follows:

@decl@
identifier i1,fld;
type T;
field list[n] fs;
@@

struct i1 {
 fs
 T fld;
 ...};

@@
identifier decl.i1,i2,decl.fld;
expression e;
position bad.p, bad.fix;
@@

struct i1 i2@p = { ...,
+ .fld = e
- e@fix
 ,...};

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
---
 arch/parisc/lib/iomap.c | 64 ++++++++++++++++++++++++-------------------------
 1 file changed, 32 insertions(+), 32 deletions(-)

diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index fb8e10a..eaffbb9 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -125,22 +125,22 @@ static void ioport_write32r(void __iomem *addr, const void *s, unsigned long n)
 }
 
 static const struct iomap_ops ioport_ops = {
-	ioport_read8,
-	ioport_read16,
-	ioport_read16,
-	ioport_read32,
-	ioport_read32,
-	ioport_write8,
-	ioport_write16,
-	ioport_write16,
-	ioport_write32,
-	ioport_write32,
-	ioport_read8r,
-	ioport_read16r,
-	ioport_read32r,
-	ioport_write8r,
-	ioport_write16r,
-	ioport_write32r,
+	.read8 = ioport_read8,
+	.read16 = ioport_read16,
+	.read16be = ioport_read16,
+	.read32 = ioport_read32,
+	.read32be = ioport_read32,
+	.write8 = ioport_write8,
+	.write16 = ioport_write16,
+	.write16be = ioport_write16,
+	.write32 = ioport_write32,
+	.write32be = ioport_write32,
+	.read8r = ioport_read8r,
+	.read16r = ioport_read16r,
+	.read32r = ioport_read32r,
+	.write8r = ioport_write8r,
+	.write16r = ioport_write16r,
+	.write32r = ioport_write32r,
 };
 
 /* Legacy I/O memory ops */
@@ -244,22 +244,22 @@ static void iomem_write32r(void __iomem *addr, const void *s, unsigned long n)
 }
 
 static const struct iomap_ops iomem_ops = {
-	iomem_read8,
-	iomem_read16,
-	iomem_read16be,
-	iomem_read32,
-	iomem_read32be,
-	iomem_write8,
-	iomem_write16,
-	iomem_write16be,
-	iomem_write32,
-	iomem_write32be,
-	iomem_read8r,
-	iomem_read16r,
-	iomem_read32r,
-	iomem_write8r,
-	iomem_write16r,
-	iomem_write32r,
+	.read8 = iomem_read8,
+	.read16 = iomem_read16,
+	.read16be = iomem_read16be,
+	.read32 = iomem_read32,
+	.read32be = iomem_read32be,
+	.write8 = iomem_write8,
+	.write16 = iomem_write16,
+	.write16be = iomem_write16be,
+	.write32 = iomem_write32,
+	.write32be = iomem_write32be,
+	.read8r = iomem_read8r,
+	.read16r = iomem_read16r,
+	.read32r = iomem_read32r,
+	.write8r = iomem_write8r,
+	.write16r = iomem_write16r,
+	.write32r = iomem_write32r,
 };
 
 static const struct iomap_ops *iomap_ops[8] = {
-- 
1.9.1

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From - Thu Nov 08 21:39:03 2018
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Subject: Re: [PATCH] 53c700: fix BUG on untagged commands
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On Mon, Jun 13, 2016 at 10:00:07PM -0700, James Bottomley wrote:
> The untagged command case in the 53c700 driver has been broken since
> host wide tags were enabled because the replaced scsi_find_tag()
> function had a special case for the tag value SCSI_NO_TAG to retrieve
> sdev->current_cmnd.  The replacement function scsi_host_find_tag() ha=
s
> no such special case and returns NULL causing untagged commands to
> trigger a BUG() in the driver.  Inspection shows that the 53c700 is t=
he
> only driver using this SCSI_NO_TAG case, so a local fix in the driver
> suffices to fix this problem globally.
>=20
> Fixes: 64d513ac31b - "scsi: use host wide tags by default"
> Cc: stable@vger.kernel.org	# 4.4+
> Reported-by: Helge Deller <deller@gmx.de>
> Tested-by: Helge Deller <deller@gmx.de>
> Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>

--=20
Johannes Thumshirn                                          Storage
jthumshirn@suse.de                                +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 N=FCrnberg
GF: Felix Imend=F6rffer, Jane Smithard, Graham Norton
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From - Thu Nov 08 21:39:03 2018
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Subject: Re: [PATCH] 53c700: fix BUG on untagged commands
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On Mon, 2016-06-13 at 22:00 -0700, James Bottomley wrote:
> The untagged command case in the 53c700 driver has been broken since
> host wide tags were enabled because the replaced scsi_find_tag()
> function had a special case for the tag value SCSI_NO_TAG to retrieve
> sdev->current_cmnd.  The replacement function scsi_host_find_tag() has
> no such special case and returns NULL causing untagged commands to
> trigger a BUG() in the driver.  Inspection shows that the 53c700 is the
> only driver using this SCSI_NO_TAG case, so a local fix in the driver
> suffices to fix this problem globally.
> 
> Fixes: 64d513ac31b - "scsi: use host wide tags by default"
> Cc: stable@vger.kernel.org	# 4.4+
> Reported-by: Helge Deller <deller@gmx.de>
> Tested-by: Helge Deller <deller@gmx.de>
> Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>
> 
> ---
> 
> diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
> index d4c2856..3ddc85e 100644
> --- a/drivers/scsi/53c700.c
> +++ b/drivers/scsi/53c700.c
> @@ -1122,7 +1122,7 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
>  		} else {
>  			struct scsi_cmnd *SCp;
>  
> -			SCp = scsi_host_find_tag(SDp->host, SCSI_NO_TAG);
> +			SCp = SDp->current_cmnd;
>  			if(unlikely(SCp == NULL)) {
>  				sdev_printk(KERN_ERR, SDp,
>  					"no saved request for untagged cmd\n");
> @@ -1826,7 +1826,7 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
>  		       slot->tag, slot);
>  	} else {
>  		slot->tag = SCSI_NO_TAG;
> -		/* must populate current_cmnd for scsi_host_find_tag to work */
> +		/* save current command for reselection */
>  		SCp->device->current_cmnd = SCp;
>  	}
>  	/* sanity check: some of the commands generated by the mid-layer
> 
> 
> --
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Reviewed-by: Ewan D. Milne <emilne@redhat.com>



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From - Thu Nov 08 21:39:03 2018
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From: Christoph Hellwig <hch@infradead.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: Re: [PATCH] 53c700: fix BUG on untagged commands
Date: Tue, 14 Jun 2016 08:05:55 -0700
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Cc: linux-scsi <linux-scsi@vger.kernel.org>,
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	Christoph Hellwig <hch@infradead.org>
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Looks fine:

Acked-by: Christoph Hellwig <hch@lst.de>

But it should really go together with something like this:

---
>From e54d1462ae244db3189a8b69018bc5f3e3d3b468 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 14 Jun 2016 17:04:10 +0200
Subject: scsi: move current_cmnd into the 53c700 driver

The 53c700 driver is the only user of the current_cmnd field in
struct scsi_device, so let's move it into the driver private data.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/scsi/53c700.c      | 8 +++++---
 drivers/scsi/53c700.h      | 1 +
 include/scsi/scsi_device.h | 1 -
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index 3ddc85e..de53b23 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -1120,9 +1120,9 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
 				"reselection is tag %d, slot %p(%d)\n",
 				hostdata->msgin[2], slot, slot->tag);
 		} else {
-			struct scsi_cmnd *SCp;
+			struct NCR_700_Device_Parameters *p = SDp->hostdata;
+			struct scsi_cmnd *SCp = p->current_cmnd;
 
-			SCp = SDp->current_cmnd;
 			if(unlikely(SCp == NULL)) {
 				sdev_printk(KERN_ERR, SDp,
 					"no saved request for untagged cmd\n");
@@ -1825,9 +1825,11 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
 		CDEBUG(KERN_DEBUG, SCp, "sending out tag %d, slot %p\n",
 		       slot->tag, slot);
 	} else {
+		struct NCR_700_Device_Parameters *p = SCp->device->hostdata;
+
 		slot->tag = SCSI_NO_TAG;
 		/* save current command for reselection */
-		SCp->device->current_cmnd = SCp;
+		p->current_cmnd = SCp;
 	}
 	/* sanity check: some of the commands generated by the mid-layer
 	 * have an eccentric idea of their sc_data_direction */
diff --git a/drivers/scsi/53c700.h b/drivers/scsi/53c700.h
index e06bdfe..83b157e 100644
--- a/drivers/scsi/53c700.h
+++ b/drivers/scsi/53c700.h
@@ -82,6 +82,7 @@ struct NCR_700_Device_Parameters {
 	 * cmnd[1], this could be in static storage */
 	unsigned char cmnd[MAX_COMMAND_SIZE];
 	__u8	depth;
+	struct scsi_cmnd *current_cmnd;	/* currently active command */
 };
 
 
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index a6c346d..8a95631 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -94,7 +94,6 @@ struct scsi_device {
 	spinlock_t list_lock;
 	struct list_head cmd_list;	/* queue of in use SCSI Command structures */
 	struct list_head starved_entry;
-	struct scsi_cmnd *current_cmnd;	/* currently active command */
 	unsigned short queue_depth;	/* How deep of a queue we want */
 	unsigned short max_queue_depth;	/* max queue depth */
 	unsigned short last_queue_full_depth; /* These two are used by */
-- 
2.1.4

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From - Thu Nov 08 21:39:03 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: invalid printk time during boot on PA-RISC
Date: Tue, 14 Jun 2016 12:20:53 -0400 (EDT)
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To: Helge Deller <deller@gmx.de>
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Hi

There is another bug: when you enable CONFIG_DEBUG_TIMEKEEPING, parisc 
boot gets stuck with these messages. (but it is not caused by the patch 
54b668009076caddbede8fde513ca2c982590bfe, because this bug happens even in 
kernel 4.6).

Mikulas

[    0.000000] Memory: 7201556K/7337984K available (4096K kernel code, 1419K rwdata, 883K rodata, 176K init, 2296K bss, 136428K reserved, 0K cma-reserved)
[    0.000000] virtual kernel memory layout:
[    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
[    0.000000]     memory  : 0x0000000040000000 - 0x0000004140000000   (266240 MB)
[    0.000000]       .init : 0x0000000040100000 - 0x000000004012c000   ( 176 kB)
[    0.000000]       .data : 0x000000004052c000 - 0x000000004076bb60   (2302 kB)
[    0.000000]       .text : 0x000000004012c000 - 0x000000004052c000   (4096 kB)
[    0.000000] SLUB: HWalign=16, Order=0-3, MinObjects=0, CPUs=4, Nodes=8
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  Build-time adjustment of leaf fanout to 64.
[    0.000000] NR_IRQS:80
[    0.000000] clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[    0.133333] WARNING: timekeeping: Cycle offset (40) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
[    0.133333]          timekeeping: Your kernel is sick, but tries to cope by capping time updates
[    0.133333] Console: colour dummy device 160x64
[    0.303333] WARNING: timekeeping: Cycle offset (51) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
[    0.303333]          timekeeping: Your kernel is sick, but tries to cope by capping time updates
[    0.423333] WARNING: timekeeping: Cycle offset (36) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
[    0.423333]          timekeeping: Your kernel is sick, but tries to cope by capping time updates
[    0.483333] WARNING: timekeeping: Cycle offset (18) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
[    0.483333]          timekeeping: Your kernel is sick, but tries to cope by capping time updates
[    0.653333] WARNING: timekeeping: Cycle offset (51) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
[    0.653333]          timekeeping: Your kernel is sick, but tries to cope by capping time updates
[    0.769999] WARNING: timekeeping: Cycle offset (35) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
[    0.769999]          timekeeping: Your kernel is sick, but tries to cope by capping time updates
[    0.943333] WARNING: timekeeping: Cycle offset (52) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
[    0.943333]          timekeeping: Your kernel is sick, but tries to cope by capping time updates


On Wed, 1 Jun 2016, Helge Deller wrote:

> * Mikulas Patocka <mpatocka@redhat.com>:
> > Hi
> > 
> > With the kernel 4.7-rc1, I get corrupted printk times when the machine 
> > boots. The kernel is compiled with "Show timing information on printks" 
> > (CONFIG_PRINTK_TIME) enabled. There are no other negative effects.
> > 
> > Bisecting shows that it is caused by the patch 
> > 54b668009076caddbede8fde513ca2c982590bfe ("parisc: Add native 
> > high-resolution sched_clock() implementation").
> > 
> > [    0.000000] NR_IRQS:80
> > [    0.000000] clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
> > [    0.000000] Console: colour dummy device 160x64
> > [   90.122205] Calibrating delay loop... 1991.60 BogoMIPS (lpj=3317760)
> > [   90.224168] pid_max: default: 32768 minimum: 301
> > ....
> > [   92.235878] 13. Crestone Peak Core RS-232 at 0xfffffff0f05e2000 [18] { 10, 0x0, 0x076, 0x000ad }
> > [   92.708000] Releasing cpu 1 now, hpa=fffffffffe781000
> > [   92.818803] FP[1] enabled: Rev 1 Model 20
> > [    2.917508] Releasing cpu 2 now, hpa=fffffffffe798000
> > [    0.196666] FP[2] enabled: Rev 1 Model 20
> > [    3.116794] Releasing cpu 3 now, hpa=fffffffffe799000
> > [    0.196666] FP[3] enabled: Rev 1 Model 20
> > [    3.296942] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online
> > [    3.447762] Setting cache flush threshold to 65536 kB
> > [    3.450548] Setting TLB flush threshold to 1020 kB
> 
> Please try attached patch.
> 
> It fixes the problem mostly for me, there is just one little glitch
> left, which is that the lines "FP[x] enabled" will still print an
> invalid time. I assume it's because when this text is printed, the
> clock/interrupts for the just booted CPU aren't enabled yet.
> 
> I'm not sure it's worth trying to fix that. 
> One could print out that info at a later time, or just disabled it.
> 
> Helge
> 
> [    5.720014] Enabling PDC_PAT chassis codes support v0.05
> [    6.644542] Releasing cpu 1 now, hpa=fffffffffe781000
> [    0.196000] FP[1] enabled: Rev 1 Model 20
> [    7.088432] CPU(s): 2 out of 2 PA8800 (Mako) at 900.000000 MHz online
> 
> -----------
> 
> [PATCH] parisc: Fix printk time during boot
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
> index 58dd680..31ec99a 100644
> --- a/arch/parisc/kernel/time.c
> +++ b/arch/parisc/kernel/time.c
> @@ -309,11 +309,6 @@ void __init time_init(void)
>  	clocks_calc_mult_shift(&cyc2ns_mul, &cyc2ns_shift, current_cr16_khz,
>  				NSEC_PER_MSEC, 0);
>  
> -#if defined(CONFIG_HAVE_UNSTABLE_SCHED_CLOCK) && defined(CONFIG_64BIT)
> -	/* At bootup only one 64bit CPU is online and cr16 is "stable" */
> -	set_sched_clock_stable();
> -#endif
> -
>  	start_cpu_itimer();	/* get CPU 0 started */
>  
>  	/* register at clocksource framework */
> 
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From - Thu Nov 08 21:39:03 2018
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Subject: Re: [PATCH] 53c700: fix BUG on untagged commands
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On 14.06.2016 17:05, Christoph Hellwig wrote:
> Looks fine:
> 
> Acked-by: Christoph Hellwig <hch@lst.de>
> 
> But it should really go together with something like this:
> 
> ---
> From e54d1462ae244db3189a8b69018bc5f3e3d3b468 Mon Sep 17 00:00:00 2001
> From: Christoph Hellwig <hch@lst.de>
> Date: Tue, 14 Jun 2016 17:04:10 +0200
> Subject: scsi: move current_cmnd into the 53c700 driver
> 
> The 53c700 driver is the only user of the current_cmnd field in
> struct scsi_device, so let's move it into the driver private data.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Patch is OK.

Tested-by: Helge Deller <deller@gmx.de>

Even if this is not a real fix, I still would suggest to add
Cc: stable@vger.kernel.org	# 4.4+
as well to get both patches backported at the same time.

Helge

> ---
>  drivers/scsi/53c700.c      | 8 +++++---
>  drivers/scsi/53c700.h      | 1 +
>  include/scsi/scsi_device.h | 1 -
>  3 files changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
> index 3ddc85e..de53b23 100644
> --- a/drivers/scsi/53c700.c
> +++ b/drivers/scsi/53c700.c
> @@ -1120,9 +1120,9 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
>  				"reselection is tag %d, slot %p(%d)\n",
>  				hostdata->msgin[2], slot, slot->tag);
>  		} else {
> -			struct scsi_cmnd *SCp;
> +			struct NCR_700_Device_Parameters *p = SDp->hostdata;
> +			struct scsi_cmnd *SCp = p->current_cmnd;
>  
> -			SCp = SDp->current_cmnd;
>  			if(unlikely(SCp == NULL)) {
>  				sdev_printk(KERN_ERR, SDp,
>  					"no saved request for untagged cmd\n");
> @@ -1825,9 +1825,11 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
>  		CDEBUG(KERN_DEBUG, SCp, "sending out tag %d, slot %p\n",
>  		       slot->tag, slot);
>  	} else {
> +		struct NCR_700_Device_Parameters *p = SCp->device->hostdata;
> +
>  		slot->tag = SCSI_NO_TAG;
>  		/* save current command for reselection */
> -		SCp->device->current_cmnd = SCp;
> +		p->current_cmnd = SCp;
>  	}
>  	/* sanity check: some of the commands generated by the mid-layer
>  	 * have an eccentric idea of their sc_data_direction */
> diff --git a/drivers/scsi/53c700.h b/drivers/scsi/53c700.h
> index e06bdfe..83b157e 100644
> --- a/drivers/scsi/53c700.h
> +++ b/drivers/scsi/53c700.h
> @@ -82,6 +82,7 @@ struct NCR_700_Device_Parameters {
>  	 * cmnd[1], this could be in static storage */
>  	unsigned char cmnd[MAX_COMMAND_SIZE];
>  	__u8	depth;
> +	struct scsi_cmnd *current_cmnd;	/* currently active command */
>  };
>  
>  
> diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
> index a6c346d..8a95631 100644
> --- a/include/scsi/scsi_device.h
> +++ b/include/scsi/scsi_device.h
> @@ -94,7 +94,6 @@ struct scsi_device {
>  	spinlock_t list_lock;
>  	struct list_head cmd_list;	/* queue of in use SCSI Command structures */
>  	struct list_head starved_entry;
> -	struct scsi_cmnd *current_cmnd;	/* currently active command */
>  	unsigned short queue_depth;	/* How deep of a queue we want */
>  	unsigned short max_queue_depth;	/* max queue depth */
>  	unsigned short last_queue_full_depth; /* These two are used by */
> 

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: invalid printk time during boot on PA-RISC
Date: Tue, 14 Jun 2016 23:23:35 +0200
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Hi Mikulas,

On 14.06.2016 18:20, Mikulas Patocka wrote:
> There is another bug: when you enable CONFIG_DEBUG_TIMEKEEPING, parisc 
> boot gets stuck with these messages.

Nice catch!

> (but it is not caused by the patch 
> 54b668009076caddbede8fde513ca2c982590bfe, because this bug happens even in 
> kernel 4.6).

Seems to be a generic upstream problem.
Would be nice to know if it happens on x86_64 as well.

I tried this patch (copy&pasted):

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 31ec99a..85e7bb7 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -217,9 +217,16 @@ static struct clocksource clocksource_cr16 = {
        .rating                 = 300,
        .read                   = read_cr16,
        .mask                   = CLOCKSOURCE_MASK(BITS_PER_LONG),
+        .mult           = 1000,
+        .shift          = 12,
        .flags                  = CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
+struct clocksource * __init clocksource_default_clock(void)
+{
+        return &clocksource_cr16;
+}
+
 int update_cr16_clocksource(void)
 {
        /* since the cr16 cycle counters are not synchronized across CPUs,

which gives:
[    0.000000] clocksource: cr16: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 29863444473 ns
[    0.000000] Console: colour dummy device 128x48
[    0.012938] Calibrating delay loop... 63.07 BogoMIPS (lpj=315392)
[    0.012938] pid_max: default: 32768 minimum: 301
[    0.014235] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.014235] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.019359] Adjusting cr16 more than 11% (1000 vs -1967128576)
[    0.019359] Brought up 1 CPUs
[    0.020634] devtmpfs: initialized
[    0.022716] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.022716] NET: Registered protocol family 16

Still puzzled...

Helge

 
> Mikulas
> 
> [    0.000000] Memory: 7201556K/7337984K available (4096K kernel code, 1419K rwdata, 883K rodata, 176K init, 2296K bss, 136428K reserved, 0K cma-reserved)
> [    0.000000] virtual kernel memory layout:
> [    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
> [    0.000000]     memory  : 0x0000000040000000 - 0x0000004140000000   (266240 MB)
> [    0.000000]       .init : 0x0000000040100000 - 0x000000004012c000   ( 176 kB)
> [    0.000000]       .data : 0x000000004052c000 - 0x000000004076bb60   (2302 kB)
> [    0.000000]       .text : 0x000000004012c000 - 0x000000004052c000   (4096 kB)
> [    0.000000] SLUB: HWalign=16, Order=0-3, MinObjects=0, CPUs=4, Nodes=8
> [    0.000000] Hierarchical RCU implementation.
> [    0.000000]  Build-time adjustment of leaf fanout to 64.
> [    0.000000] NR_IRQS:80
> [    0.000000] clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
> [    0.133333] WARNING: timekeeping: Cycle offset (40) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
> [    0.133333]          timekeeping: Your kernel is sick, but tries to cope by capping time updates
> [    0.133333] Console: colour dummy device 160x64
> [    0.303333] WARNING: timekeeping: Cycle offset (51) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
> [    0.303333]          timekeeping: Your kernel is sick, but tries to cope by capping time updates
> [    0.423333] WARNING: timekeeping: Cycle offset (36) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
> [    0.423333]          timekeeping: Your kernel is sick, but tries to cope by capping time updates
> [    0.483333] WARNING: timekeeping: Cycle offset (18) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
> [    0.483333]          timekeeping: Your kernel is sick, but tries to cope by capping time updates
> [    0.653333] WARNING: timekeeping: Cycle offset (51) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
> [    0.653333]          timekeeping: Your kernel is sick, but tries to cope by capping time updates
> [    0.769999] WARNING: timekeeping: Cycle offset (35) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
> [    0.769999]          timekeeping: Your kernel is sick, but tries to cope by capping time updates
> [    0.943333] WARNING: timekeeping: Cycle offset (52) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
> [    0.943333]          timekeeping: Your kernel is sick, but tries to cope by capping time updates
> 
> 
> On Wed, 1 Jun 2016, Helge Deller wrote:
> 
>> * Mikulas Patocka <mpatocka@redhat.com>:
>>> Hi
>>>
>>> With the kernel 4.7-rc1, I get corrupted printk times when the machine 
>>> boots. The kernel is compiled with "Show timing information on printks" 
>>> (CONFIG_PRINTK_TIME) enabled. There are no other negative effects.
>>>
>>> Bisecting shows that it is caused by the patch 
>>> 54b668009076caddbede8fde513ca2c982590bfe ("parisc: Add native 
>>> high-resolution sched_clock() implementation").
>>>
>>> [    0.000000] NR_IRQS:80
>>> [    0.000000] clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
>>> [    0.000000] Console: colour dummy device 160x64
>>> [   90.122205] Calibrating delay loop... 1991.60 BogoMIPS (lpj=3317760)
>>> [   90.224168] pid_max: default: 32768 minimum: 301
>>> ....
>>> [   92.235878] 13. Crestone Peak Core RS-232 at 0xfffffff0f05e2000 [18] { 10, 0x0, 0x076, 0x000ad }
>>> [   92.708000] Releasing cpu 1 now, hpa=fffffffffe781000
>>> [   92.818803] FP[1] enabled: Rev 1 Model 20
>>> [    2.917508] Releasing cpu 2 now, hpa=fffffffffe798000
>>> [    0.196666] FP[2] enabled: Rev 1 Model 20
>>> [    3.116794] Releasing cpu 3 now, hpa=fffffffffe799000
>>> [    0.196666] FP[3] enabled: Rev 1 Model 20
>>> [    3.296942] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online
>>> [    3.447762] Setting cache flush threshold to 65536 kB
>>> [    3.450548] Setting TLB flush threshold to 1020 kB
>>
>> Please try attached patch.
>>
>> It fixes the problem mostly for me, there is just one little glitch
>> left, which is that the lines "FP[x] enabled" will still print an
>> invalid time. I assume it's because when this text is printed, the
>> clock/interrupts for the just booted CPU aren't enabled yet.
>>
>> I'm not sure it's worth trying to fix that. 
>> One could print out that info at a later time, or just disabled it.
>>
>> Helge
>>
>> [    5.720014] Enabling PDC_PAT chassis codes support v0.05
>> [    6.644542] Releasing cpu 1 now, hpa=fffffffffe781000
>> [    0.196000] FP[1] enabled: Rev 1 Model 20
>> [    7.088432] CPU(s): 2 out of 2 PA8800 (Mako) at 900.000000 MHz online
>>
>> -----------
>>
>> [PATCH] parisc: Fix printk time during boot
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
>> index 58dd680..31ec99a 100644
>> --- a/arch/parisc/kernel/time.c
>> +++ b/arch/parisc/kernel/time.c
>> @@ -309,11 +309,6 @@ void __init time_init(void)
>>  	clocks_calc_mult_shift(&cyc2ns_mul, &cyc2ns_shift, current_cr16_khz,
>>  				NSEC_PER_MSEC, 0);
>>  
>> -#if defined(CONFIG_HAVE_UNSTABLE_SCHED_CLOCK) && defined(CONFIG_64BIT)
>> -	/* At bootup only one 64bit CPU is online and cr16 is "stable" */
>> -	set_sched_clock_stable();
>> -#endif
>> -
>>  	start_cpu_itimer();	/* get CPU 0 started */
>>  
>>  	/* register at clocksource framework */
>>

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>>>>> "James" == James Bottomley <jejb@linux.vnet.ibm.com> writes:

James> The untagged command case in the 53c700 driver has been broken
James> since host wide tags were enabled because the replaced
James> scsi_find_tag() function had a special case for the tag value
James> SCSI_NO_TAG to retrieve sdev-> current_cmnd.  The replacement
James> function scsi_host_find_tag() has no such special case and
James> returns NULL causing untagged commands to trigger a BUG() in the
James> driver.  Inspection shows that the 53c700 is the only driver
James> using this SCSI_NO_TAG case, so a local fix in the driver
James> suffices to fix this problem globally.

Applied to 4.7/scsi-fixes.

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Subject: Re: [PATCH] 53c700: fix BUG on untagged commands
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>>>>> "Christoph" == Christoph Hellwig <hch@infradead.org> writes:

Christoph> But it should really go together with something like this:

I completely agree with your patch but it's more of a cleanup. I'll put
it in 4.8 once James' fix hits.

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On Tue, 2016-06-14 at 08:05 -0700, Christoph Hellwig wrote:
> Looks fine:
> 
> Acked-by: Christoph Hellwig <hch@lst.de>
> 
> But it should really go together with something like this:

Well, we need the simplest fix to backport, which is why I sent what I
did.

> ---
> From e54d1462ae244db3189a8b69018bc5f3e3d3b468 Mon Sep 17 00:00:00
> 2001
> From: Christoph Hellwig <hch@lst.de>
> Date: Tue, 14 Jun 2016 17:04:10 +0200
> Subject: scsi: move current_cmnd into the 53c700 driver
> 
> The 53c700 driver is the only user of the current_cmnd field in
> struct scsi_device, so let's move it into the driver private data.

The style in the driver is to use accessor functions for device
parameters, but I don't see it matters much since the day anyone would
write a new SPI driver (for which this was often the template) is long
gone.

James

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Subject: Re: [PATCH] 53c700: fix BUG on untagged commands
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On 06/14/2016 05:05 PM, Christoph Hellwig wrote:
> Looks fine:
>=20
> Acked-by: Christoph Hellwig <hch@lst.de>
>=20
> But it should really go together with something like this:
>=20
> ---
> From e54d1462ae244db3189a8b69018bc5f3e3d3b468 Mon Sep 17 00:00:00 200=
1
> From: Christoph Hellwig <hch@lst.de>
> Date: Tue, 14 Jun 2016 17:04:10 +0200
> Subject: scsi: move current_cmnd into the 53c700 driver
>=20
> The 53c700 driver is the only user of the current_cmnd field in
> struct scsi_device, so let's move it into the driver private data.
>=20
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  drivers/scsi/53c700.c      | 8 +++++---
>  drivers/scsi/53c700.h      | 1 +
>  include/scsi/scsi_device.h | 1 -
>  3 files changed, 6 insertions(+), 4 deletions(-)
>=20
Yes, please. I was wanting to get rid of the 'current_cmnd' thingie a
long time ago.

Reviewed-by: Hannes Reinecke <hare@suse.com>

Cheers,

Hannes
--=20
Dr. Hannes Reinecke		   Teamlead Storage & Networking
hare@suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 N=FCrnberg
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Xref: news.gmane.org gmane.linux.ports.mips.general:55279 gmane.linux.kernel:2248217 gmane.linux.ports.sh.devel:54241 gmane.linux.ports.ppc64.devel:128773 gmane.linux.ports.parisc:26907 gmane.linux.ports.arm.kernel:508265 gmane.linux.kernel.arc:1258
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/55279>

As each mount of devpts is now an independent filesystem,
the DEVPTS_MULTIPLE_INSTANCES config option no longer exists.
So remove it.

Signed-off-by: Alexandru Moise <00moses.alexander00@gmail.com>
---
 arch/arc/configs/tb10x_defconfig            | 1 -
 arch/arm/configs/mxs_defconfig              | 1 -
 arch/mips/configs/ip27_defconfig            | 1 -
 arch/mips/configs/nlm_xlp_defconfig         | 1 -
 arch/mips/configs/nlm_xlr_defconfig         | 1 -
 arch/parisc/configs/generic-64bit_defconfig | 1 -
 arch/powerpc/configs/powernv_defconfig      | 1 -
 arch/powerpc/configs/pseries_defconfig      | 1 -
 arch/s390/configs/default_defconfig         | 1 -
 arch/s390/configs/gcov_defconfig            | 1 -
 arch/s390/configs/performance_defconfig     | 1 -
 arch/sh/configs/sh7785lcr_32bit_defconfig   | 1 -
 arch/xtensa/configs/iss_defconfig           | 1 -
 tools/testing/selftests/mount/config        | 1 -
 14 files changed, 14 deletions(-)

diff --git a/arch/arc/configs/tb10x_defconfig b/arch/arc/configs/tb10x_defconfig
index 4c51183..be0b4fb 100644
--- a/arch/arc/configs/tb10x_defconfig
+++ b/arch/arc/configs/tb10x_defconfig
@@ -58,7 +58,6 @@ CONFIG_STMMAC_ETH=y
 # CONFIG_INPUT is not set
 # CONFIG_SERIO is not set
 # CONFIG_VT is not set
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
diff --git a/arch/arm/configs/mxs_defconfig b/arch/arm/configs/mxs_defconfig
index 6e0f751..65a84b4 100644
--- a/arch/arm/configs/mxs_defconfig
+++ b/arch/arm/configs/mxs_defconfig
@@ -77,7 +77,6 @@ CONFIG_INPUT_EVDEV=y
 CONFIG_INPUT_TOUCHSCREEN=y
 CONFIG_TOUCHSCREEN_TSC2007=m
 # CONFIG_SERIO is not set
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_AMBA_PL011=y
diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig
index 2b74aee..df11563 100644
--- a/arch/mips/configs/ip27_defconfig
+++ b/arch/mips/configs/ip27_defconfig
@@ -266,7 +266,6 @@ CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 CONFIG_HW_RANDOM_TIMERIOMEM=m
 CONFIG_I2C_CHARDEV=m
 CONFIG_I2C_ALI1535=m
diff --git a/arch/mips/configs/nlm_xlp_defconfig b/arch/mips/configs/nlm_xlp_defconfig
index b496c25..5c40b48 100644
--- a/arch/mips/configs/nlm_xlp_defconfig
+++ b/arch/mips/configs/nlm_xlp_defconfig
@@ -409,7 +409,6 @@ CONFIG_SERIO_SERPORT=m
 CONFIG_SERIO_LIBPS2=y
 CONFIG_SERIO_RAW=m
 CONFIG_VT_HW_CONSOLE_BINDING=y
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 CONFIG_LEGACY_PTY_COUNT=0
 CONFIG_SERIAL_NONSTANDARD=y
 CONFIG_N_HDLC=m
diff --git a/arch/mips/configs/nlm_xlr_defconfig b/arch/mips/configs/nlm_xlr_defconfig
index 8e99ad8..47a2756 100644
--- a/arch/mips/configs/nlm_xlr_defconfig
+++ b/arch/mips/configs/nlm_xlr_defconfig
@@ -347,7 +347,6 @@ CONFIG_SERIO_SERPORT=m
 CONFIG_SERIO_LIBPS2=y
 CONFIG_SERIO_RAW=m
 CONFIG_VT_HW_CONSOLE_BINDING=y
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 CONFIG_LEGACY_PTY_COUNT=0
 CONFIG_SERIAL_NONSTANDARD=y
 CONFIG_N_HDLC=m
diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig
index e945c08..69aa66c 100644
--- a/arch/parisc/configs/generic-64bit_defconfig
+++ b/arch/parisc/configs/generic-64bit_defconfig
@@ -166,7 +166,6 @@ CONFIG_INPUT_MISC=y
 CONFIG_SERIO_SERPORT=m
 # CONFIG_HP_SDC is not set
 CONFIG_SERIO_RAW=m
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 # CONFIG_LEGACY_PTYS is not set
 CONFIG_NOZOMI=m
 # CONFIG_DEVKMEM is not set
diff --git a/arch/powerpc/configs/powernv_defconfig b/arch/powerpc/configs/powernv_defconfig
index 0450310..2fd6bbe 100644
--- a/arch/powerpc/configs/powernv_defconfig
+++ b/arch/powerpc/configs/powernv_defconfig
@@ -176,7 +176,6 @@ CONFIG_PPP_SYNC_TTY=m
 CONFIG_INPUT_EVDEV=m
 CONFIG_INPUT_MISC=y
 # CONFIG_SERIO_SERPORT is not set
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_JSM=m
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index 36871a4..3c325ba 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -180,7 +180,6 @@ CONFIG_INPUT_EVDEV=m
 CONFIG_INPUT_MISC=y
 CONFIG_INPUT_PCSPKR=m
 # CONFIG_SERIO_SERPORT is not set
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_ICOM=m
diff --git a/arch/s390/configs/default_defconfig b/arch/s390/configs/default_defconfig
index d5ec71b..501e93a 100644
--- a/arch/s390/configs/default_defconfig
+++ b/arch/s390/configs/default_defconfig
@@ -453,7 +453,6 @@ CONFIG_PPP_SYNC_TTY=m
 # CONFIG_INPUT_KEYBOARD is not set
 # CONFIG_INPUT_MOUSE is not set
 # CONFIG_SERIO is not set
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 CONFIG_LEGACY_PTY_COUNT=0
 CONFIG_HW_RANDOM_VIRTIO=m
 CONFIG_RAW_DRIVER=m
diff --git a/arch/s390/configs/gcov_defconfig b/arch/s390/configs/gcov_defconfig
index f46a351..bd34600 100644
--- a/arch/s390/configs/gcov_defconfig
+++ b/arch/s390/configs/gcov_defconfig
@@ -447,7 +447,6 @@ CONFIG_PPP_SYNC_TTY=m
 # CONFIG_INPUT_KEYBOARD is not set
 # CONFIG_INPUT_MOUSE is not set
 # CONFIG_SERIO is not set
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 CONFIG_LEGACY_PTY_COUNT=0
 CONFIG_HW_RANDOM_VIRTIO=m
 CONFIG_RAW_DRIVER=m
diff --git a/arch/s390/configs/performance_defconfig b/arch/s390/configs/performance_defconfig
index ba0f2a5..cfb7c50 100644
--- a/arch/s390/configs/performance_defconfig
+++ b/arch/s390/configs/performance_defconfig
@@ -447,7 +447,6 @@ CONFIG_PPP_SYNC_TTY=m
 # CONFIG_INPUT_KEYBOARD is not set
 # CONFIG_INPUT_MOUSE is not set
 # CONFIG_SERIO is not set
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 CONFIG_LEGACY_PTY_COUNT=0
 CONFIG_HW_RANDOM_VIRTIO=m
 CONFIG_RAW_DRIVER=m
diff --git a/arch/sh/configs/sh7785lcr_32bit_defconfig b/arch/sh/configs/sh7785lcr_32bit_defconfig
index 9bdcf72..48df495 100644
--- a/arch/sh/configs/sh7785lcr_32bit_defconfig
+++ b/arch/sh/configs/sh7785lcr_32bit_defconfig
@@ -79,7 +79,6 @@ CONFIG_VT_HW_CONSOLE_BINDING=y
 CONFIG_SERIAL_SH_SCI=y
 CONFIG_SERIAL_SH_SCI_NR_UARTS=6
 CONFIG_SERIAL_SH_SCI_CONSOLE=y
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_HW_RANDOM is not set
 CONFIG_I2C=y
diff --git a/arch/xtensa/configs/iss_defconfig b/arch/xtensa/configs/iss_defconfig
index 44c6764..d7b905a 100644
--- a/arch/xtensa/configs/iss_defconfig
+++ b/arch/xtensa/configs/iss_defconfig
@@ -374,7 +374,6 @@ CONFIG_DEVKMEM=y
 #
 # CONFIG_SERIAL_TIMBERDALE is not set
 CONFIG_UNIX98_PTYS=y
-# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
diff --git a/tools/testing/selftests/mount/config b/tools/testing/selftests/mount/config
index b5d881e..416bd53 100644
--- a/tools/testing/selftests/mount/config
+++ b/tools/testing/selftests/mount/config
@@ -1,2 +1 @@
 CONFIG_USER_NS=y
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
-- 
2.8.3




From - Thu Nov 08 21:39:04 2018
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From: "Martin K. Petersen" <martin.petersen@oracle.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: Re: [PATCH][SCSI] 53c700: Use proper debug printk format specifiers
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>>>>> "Helge" =3D=3D Helge Deller <deller@gmx.de> writes:

Helge> When enabling the debug options NCR_700_DEBUG and
Helge> NCR_700_TAG_DEBUG various printk format warnings can be seen
Helge> like: drivers/scsi/53c700.c:357:2: warning: format =E2=80=98%p=E2=
=80=99 expects
Helge> argument of type =E2=80=98void *=E2=80=99, but argument 4 has ty=
pe =E2=80=98dma_addr_t=E2=80=99
Helge> [-Wformat=3D] script_patch_32(hostdata->dev, script,
Helge> MessageLocation,

Helge> Fix them by using the right printk format specifiers.

Applied to 4.8/scsi-queue.

--=20
Martin K. Petersen	Oracle Linux Engineering
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Xref: news.gmane.org gmane.linux.ports.mips.general:55289 gmane.linux.kernel:2249250 gmane.linux.ports.parisc:26909 gmane.linux.ports.sh.devel:54242 gmane.linux.kernel.arc:1263 gmane.linux.ports.ppc64.devel:128865 gmane.linux.ports.arm.kernel:508588
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/55289>

On Monday 20 June 2016 02:44 PM, Alexandru Moise wrote:
> As each mount of devpts is now an independent filesystem,
> the DEVPTS_MULTIPLE_INSTANCES config option no longer exists.
> So remove it.
>
> Signed-off-by: Alexandru Moise <00moses.alexander00@gmail.com>

For arch/arc

Acked-by: Vineet Gupta <vgupta@synopsys.com>



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> > > > I noticed on RP3440 and A500 that recent 4.4-rc* crashes on boot.
> > > >
> > > >I've not seen it with 4.4-rc yet, but I've seen it on debian kernel
> > > >4.3.3:
> > This is still present in 4.6, just tested. All my pariscs are broken
> > - A500, RP3410, RP3440. 4.3 is the latest working release for me. If
> > 4.3.3 is broken, it might be possible to bisect more easily.
> 
> I believe this is fixed in current gcc versions (4.9 and latter). It was
> exposed by a blk-merge
> change.  It was fixed by this change:

Out of interest, how do other parisc users get the new compiler?

What distro are you using?

My pariscs are gentoo and still only the old versions are available on 
hppa.

-- 
Meelis Roos (mroos@linux.ee)
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On 2016-06-22, at 7:52 AM, Meelis Roos wrote:

>>>>> I noticed on RP3440 and A500 that recent 4.4-rc* crashes on boot.
>>>>> 
>>>>> I've not seen it with 4.4-rc yet, but I've seen it on debian kernel
>>>>> 4.3.3:
>>> This is still present in 4.6, just tested. All my pariscs are broken
>>> - A500, RP3410, RP3440. 4.3 is the latest working release for me. If
>>> 4.3.3 is broken, it might be possible to bisect more easily.
>> 
>> I believe this is fixed in current gcc versions (4.9 and latter). It was
>> exposed by a blk-merge
>> change.  It was fixed by this change:
> 
> Out of interest, how do other parisc users get the new compiler?

The Debian binaries have the change.

For development, I get gcc with svn from <https://gcc.gnu.org/>.  It is also possible to
use git to access the sources.

gcc -v should show how your current compiler was built.

> 
> What distro are you using?

We are using Debian unstable.  Helge and myself have setup an automated build system
with several buildds.  We are getting reasonable support from package maintainers.

Approximately, 11100 packages are available using apt-get:
https://buildd.debian.org/status/architecture.php?a=hppa&suite=sid
In terms of package counts, we are about equal to alpha, ppc64 and sparc64.

Helge has setup a Debian install disk.  Info on this is here:
https://parisc.wiki.kernel.org/index.php/Main_Page

> 
> My pariscs are gentoo and still only the old versions are available on 
> hppa.


Hope this helps,
Dave
--
John David Anglin	dave.anglin@bell.net



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Am Mittwoch, 22. Juni 2016, 14:52:40 schrieb Meelis Roos:
> > > > > I noticed on RP3440 and A500 that recent 4.4-rc* crashes on boot.
> > > > >
> > > > >I've not seen it with 4.4-rc yet, but I've seen it on debian kernel
> > > 
> > > > >4.3.3:
> > > This is still present in 4.6, just tested. All my pariscs are broken
> > > - A500, RP3410, RP3440. 4.3 is the latest working release for me. If
> > > 4.3.3 is broken, it might be possible to bisect more easily.
> > 
> > I believe this is fixed in current gcc versions (4.9 and latter). It was
> > exposed by a blk-merge
> 
> > change.  It was fixed by this change:
> Out of interest, how do other parisc users get the new compiler?
> 
> What distro are you using?
> 
> My pariscs are gentoo and still only the old versions are available on
> hppa.

Several newer versions (4.9, 5.3) are in portage, maybe they just need to be 
unmasked.

Greetings,

Eike
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Hi,

On Wed, Jun 22, 2016 at 02:52:40PM +0300, Meelis Roos wrote:
> > > > > I noticed on RP3440 and A500 that recent 4.4-rc* crashes on boot.
> > > > >
> > > > >I've not seen it with 4.4-rc yet, but I've seen it on debian kernel
> > > > >4.3.3:
> > > This is still present in 4.6, just tested. All my pariscs are broken
> > > - A500, RP3410, RP3440. 4.3 is the latest working release for me. If
> > > 4.3.3 is broken, it might be possible to bisect more easily.
> > 
> > I believe this is fixed in current gcc versions (4.9 and latter). It was
> > exposed by a blk-merge
> > change.  It was fixed by this change:
> 
> Out of interest, how do other parisc users get the new compiler?
> 
> What distro are you using?
> 
> My pariscs are gentoo and still only the old versions are available on 
> hppa.

I compile everything from scratch. Currently using GCC 6.1.

A.
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It is never called since commit 81732c3b2fede (tty vt: Fix line
garbage in virtual console on command line edition) in 3.7. So remove
all the callbacks.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: linux-usb@vger.kernel.org
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
---
 drivers/usb/misc/sisusbvga/sisusb_con.c | 35 ---------------------------------
 drivers/video/console/dummycon.c        |  1 -
 drivers/video/console/fbcon.c           |  1 -
 drivers/video/console/mdacon.c          | 33 -------------------------------
 drivers/video/console/newport_con.c     | 29 ---------------------------
 drivers/video/console/sticon.c          | 17 ----------------
 drivers/video/console/vgacon.c          |  1 -
 include/linux/console.h                 |  1 -
 8 files changed, 118 deletions(-)

diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c
index 4112835f4aed..52a6da991165 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -477,39 +477,6 @@ sisusbcon_clear(struct vc_data *c, int y, int x, int height, int width)
 	mutex_unlock(&sisusb->lock);
 }
 
-/* Interface routine */
-static void
-sisusbcon_bmove(struct vc_data *c, int sy, int sx,
-			 int dy, int dx, int height, int width)
-{
-	struct sisusb_usb_data *sisusb;
-	int cols, length;
-
-	if (width <= 0 || height <= 0)
-		return;
-
-	sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
-	if (!sisusb)
-		return;
-
-	/* sisusb->lock is down */
-
-	cols = sisusb->sisusb_num_columns;
-
-	if (sisusb_is_inactive(c, sisusb)) {
-		mutex_unlock(&sisusb->lock);
-		return;
-	}
-
-	length = ((height * cols) - dx - (cols - width - dx)) * 2;
-
-
-	sisusb_copy_memory(sisusb, (unsigned char *)SISUSB_VADDR(dx, dy),
-				(long)SISUSB_HADDR(dx, dy), length);
-
-	mutex_unlock(&sisusb->lock);
-}
-
 /* interface routine */
 static int
 sisusbcon_switch(struct vc_data *c)
@@ -1371,7 +1338,6 @@ static const struct consw sisusb_con = {
 	.con_putcs =		sisusbcon_putcs,
 	.con_cursor =		sisusbcon_cursor,
 	.con_scroll =		sisusbcon_scroll,
-	.con_bmove =		sisusbcon_bmove,
 	.con_switch =		sisusbcon_switch,
 	.con_blank =		sisusbcon_blank,
 	.con_font_set =		sisusbcon_font_set,
@@ -1419,7 +1385,6 @@ static const struct consw sisusb_dummy_con = {
 	.con_putcs =		SISUSBCONDUMMY,
 	.con_cursor =		SISUSBCONDUMMY,
 	.con_scroll =		SISUSBCONDUMMY,
-	.con_bmove =		SISUSBCONDUMMY,
 	.con_switch =		SISUSBCONDUMMY,
 	.con_blank =		SISUSBCONDUMMY,
 	.con_font_set =		SISUSBCONDUMMY,
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index 0ef544ef5634..9269d5685239 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -64,7 +64,6 @@ const struct consw dummy_con = {
     .con_putcs =	DUMMY,
     .con_cursor =	DUMMY,
     .con_scroll =	DUMMY,
-    .con_bmove =	DUMMY,
     .con_switch =	DUMMY,
     .con_blank =	DUMMY,
     .con_font_set =	DUMMY,
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 9359b06377cf..eef8a8b7274f 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -3334,7 +3334,6 @@ static const struct consw fb_con = {
 	.con_putcs 		= fbcon_putcs,
 	.con_cursor 		= fbcon_cursor,
 	.con_scroll 		= fbcon_scroll,
-	.con_bmove 		= fbcon_bmove,
 	.con_switch 		= fbcon_switch,
 	.con_blank 		= fbcon_blank,
 	.con_font_set 		= fbcon_set_font,
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index 1fe5245eb6dd..bacbb044d77c 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -444,38 +444,6 @@ static void mdacon_clear(struct vc_data *c, int y, int x,
 	}
 }
                         
-static void mdacon_bmove(struct vc_data *c, int sy, int sx, 
-			 int dy, int dx, int height, int width)
-{
-	u16 *src, *dest;
-
-	if (width <= 0 || height <= 0)
-		return;
-		
-	if (sx==0 && dx==0 && width==mda_num_columns) {
-		scr_memmovew(MDA_ADDR(0,dy), MDA_ADDR(0,sy), height*width*2);
-
-	} else if (dy < sy || (dy == sy && dx < sx)) {
-		src  = MDA_ADDR(sx, sy);
-		dest = MDA_ADDR(dx, dy);
-
-		for (; height > 0; height--) {
-			scr_memmovew(dest, src, width*2);
-			src  += mda_num_columns;
-			dest += mda_num_columns;
-		}
-	} else {
-		src  = MDA_ADDR(sx, sy+height-1);
-		dest = MDA_ADDR(dx, dy+height-1);
-
-		for (; height > 0; height--) {
-			scr_memmovew(dest, src, width*2);
-			src  -= mda_num_columns;
-			dest -= mda_num_columns;
-		}
-	}
-}
-
 static int mdacon_switch(struct vc_data *c)
 {
 	return 1;	/* redrawing needed */
@@ -564,7 +532,6 @@ static const struct consw mda_con = {
 	.con_putcs =		mdacon_putcs,
 	.con_cursor =		mdacon_cursor,
 	.con_scroll =		mdacon_scroll,
-	.con_bmove =		mdacon_bmove,
 	.con_switch =		mdacon_switch,
 	.con_blank =		mdacon_blank,
 	.con_build_attr =	mdacon_build_attr,
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index a436930f9e5d..e3b9521e4ec3 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -673,34 +673,6 @@ static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
 	return 1;
 }
 
-static void newport_bmove(struct vc_data *vc, int sy, int sx, int dy,
-			  int dx, int h, int w)
-{
-	short xs, ys, xe, ye, xoffs, yoffs;
-
-	xs = sx << 3;
-	xe = ((sx + w) << 3) - 1;
-	/*
-	 * as bmove is only used to move stuff around in the same line
-	 * (h == 1), we don't care about wrap arounds caused by topscan != 0
-	 */
-	ys = ((sy << 4) + topscan) & 0x3ff;
-	ye = (((sy + h) << 4) - 1 + topscan) & 0x3ff;
-	xoffs = (dx - sx) << 3;
-	yoffs = (dy - sy) << 4;
-	if (xoffs > 0) {
-		/* move to the right, exchange starting points */
-		swap(xe, xs);
-	}
-	newport_wait(npregs);
-	npregs->set.drawmode0 = (NPORT_DMODE0_S2S | NPORT_DMODE0_BLOCK |
-				 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX
-				 | NPORT_DMODE0_STOPY);
-	npregs->set.xystarti = (xs << 16) | ys;
-	npregs->set.xyendi = (xe << 16) | ye;
-	npregs->go.xymove = (xoffs << 16) | yoffs;
-}
-
 static int newport_dummy(struct vc_data *c)
 {
 	return 0;
@@ -718,7 +690,6 @@ const struct consw newport_con = {
 	.con_putcs	  = newport_putcs,
 	.con_cursor	  = newport_cursor,
 	.con_scroll	  = newport_scroll,
-	.con_bmove 	  = newport_bmove,
 	.con_switch	  = newport_switch,
 	.con_blank	  = newport_blank,
 	.con_font_set	  = newport_font_set,
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index fe7c4dbb676e..3a10ac19598f 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -177,22 +177,6 @@ static int sticon_scroll(struct vc_data *conp, int t, int b, int dir, int count)
     return 0;
 }
 
-static void sticon_bmove(struct vc_data *conp, int sy, int sx, 
-	int dy, int dx, int height, int width)
-{
-    if (!width || !height)
-	    return;
-#if 0
-    if (((sy <= p->cursor_y) && (p->cursor_y < sy+height) &&
-	(sx <= p->cursor_x) && (p->cursor_x < sx+width)) ||
-	((dy <= p->cursor_y) && (p->cursor_y < dy+height) &&
-	(dx <= p->cursor_x) && (p->cursor_x < dx+width)))
-		sticon_cursor(p, CM_ERASE /*|CM_SOFTBACK*/);
-#endif
-
-    sti_bmove(sticon_sti, sy, sx, dy, dx, height, width);
-}
-
 static void sticon_init(struct vc_data *c, int init)
 {
     struct sti_struct *sti = sticon_sti;
@@ -345,7 +329,6 @@ static const struct consw sti_con = {
 	.con_putcs		= sticon_putcs,
 	.con_cursor		= sticon_cursor,
 	.con_scroll		= sticon_scroll,
-	.con_bmove		= sticon_bmove,
 	.con_switch		= sticon_switch,
 	.con_blank		= sticon_blank,
 	.con_set_origin		= sticon_set_origin,
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index aaae9bd23900..e280b3ceebd9 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -1421,7 +1421,6 @@ const struct consw vga_con = {
 	.con_putcs = DUMMY,
 	.con_cursor = vgacon_cursor,
 	.con_scroll = vgacon_scroll,
-	.con_bmove = DUMMY,
 	.con_switch = vgacon_switch,
 	.con_blank = vgacon_blank,
 	.con_font_set = vgacon_font_set,
diff --git a/include/linux/console.h b/include/linux/console.h
index 382a527104c4..d530c4627e54 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -45,7 +45,6 @@ struct consw {
 	void	(*con_putcs)(struct vc_data *, const unsigned short *, int, int, int);
 	void	(*con_cursor)(struct vc_data *, int);
 	int	(*con_scroll)(struct vc_data *, int, int, int, int);
-	void	(*con_bmove)(struct vc_data *, int, int, int, int, int, int);
 	int	(*con_switch)(struct vc_data *);
 	int	(*con_blank)(struct vc_data *, int, int);
 	int	(*con_font_set)(struct vc_data *, struct console_font *, unsigned);
-- 
2.9.0



From - Thu Nov 08 21:39:04 2018
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From: Jiri Slaby <jslaby@suse.cz>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.usb.general,gmane.linux.ports.parisc
Subject: [PATCH 05/16] tty: vt, consw->con_scrolldelta cleanup
Date: Thu, 23 Jun 2016 13:34:26 +0200
Lines: 333
Approved: news@gmane.org
Message-ID: <20160623113437.28416-5-jslaby@suse.cz>
References: <20160623113437.28416-1-jslaby@suse.cz>
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Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
	Jiri Slaby <jslaby@suse.cz>,
	Thomas Winischhofer <thomas@winischhofer.net>,
	linux-usb@vger.kernel.org,
	Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>,
	Tomi Valkeinen <tomi.valkeinen@ti.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>, linux-fbdev@vger.kernel.org,
	linux-parisc@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2251767>

* allow NULL consw->con_scrolldelta (some consoles define an empty
  hook)
* => remove empty hooks now
* return value of consw->con_scrolldelta is never checked => make the
  function void
* document consw->con_scrolldelta a bit

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: linux-usb@vger.kernel.org
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
---
 drivers/tty/vt/vt.c                     |  2 +-
 drivers/usb/misc/sisusbvga/sisusb_con.c | 11 +++--------
 drivers/video/console/dummycon.c        |  1 -
 drivers/video/console/fbcon.c           | 16 +++++++---------
 drivers/video/console/mdacon.c          |  6 ------
 drivers/video/console/newport_con.c     |  7 -------
 drivers/video/console/sticon.c          |  6 ------
 drivers/video/console/vgacon.c          | 13 +++++--------
 include/linux/console.h                 |  8 +++++++-
 9 files changed, 23 insertions(+), 47 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index abc79ae19079..365a91d01a0e 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -2468,7 +2468,7 @@ static void console_callback(struct work_struct *ignored)
 	if (scrollback_delta) {
 		struct vc_data *vc = vc_cons[fg_console].d;
 		clear_selection();
-		if (vc->vc_mode == KD_TEXT)
+		if (vc->vc_mode == KD_TEXT && vc->vc_sw->con_scrolldelta)
 			vc->vc_sw->con_scrolldelta(vc, scrollback_delta);
 		scrollback_delta = 0;
 	}
diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c
index 0ebbf49cd649..a8244ebeb7a7 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -717,24 +717,22 @@ sisusbcon_blank(struct vc_data *c, int blank, int mode_switch)
 }
 
 /* interface routine */
-static int
+static void
 sisusbcon_scrolldelta(struct vc_data *c, int lines)
 {
 	struct sisusb_usb_data *sisusb;
 	int margin = c->vc_size_row * 4;
 	int ul, we, p, st;
 
-	/* The return value does not seem to be used */
-
 	sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
 	if (!sisusb)
-		return 0;
+		return;
 
 	/* sisusb->lock is down */
 
 	if (sisusb_is_inactive(c, sisusb)) {
 		mutex_unlock(&sisusb->lock);
-		return 0;
+		return;
 	}
 
 	if (!lines)		/* Turn scrollback off */
@@ -774,8 +772,6 @@ sisusbcon_scrolldelta(struct vc_data *c, int lines)
 	sisusbcon_set_start_address(sisusb, c);
 
 	mutex_unlock(&sisusb->lock);
-
-	return 1;
 }
 
 /* Interface routine */
@@ -1433,7 +1429,6 @@ static const struct consw sisusb_dummy_con = {
 	.con_font_default =	SISUSBCONDUMMY,
 	.con_font_copy =	SISUSBCONDUMMY,
 	.con_set_palette =	SISUSBCONDUMMY,
-	.con_scrolldelta =	SISUSBCONDUMMY,
 };
 
 int
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index 0efc52f11ad0..9ce03b9aba88 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -72,6 +72,5 @@ const struct consw dummy_con = {
     .con_font_default =	DUMMY,
     .con_font_copy =	DUMMY,
     .con_set_palette =	DUMMY,
-    .con_scrolldelta =	DUMMY,
 };
 EXPORT_SYMBOL_GPL(dummy_con);
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index afd3301ac40c..eadc7bf62eb3 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -171,7 +171,6 @@ static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx,
 static int fbcon_switch(struct vc_data *vc);
 static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch);
 static int fbcon_set_palette(struct vc_data *vc, const unsigned char *table);
-static int fbcon_scrolldelta(struct vc_data *vc, int lines);
 
 /*
  *  Internal routines
@@ -2765,7 +2764,7 @@ static void fbcon_invert_region(struct vc_data *vc, u16 * p, int cnt)
 	}
 }
 
-static int fbcon_scrolldelta(struct vc_data *vc, int lines)
+static void fbcon_scrolldelta(struct vc_data *vc, int lines)
 {
 	struct fb_info *info = registered_fb[con2fb_map[fg_console]];
 	struct fbcon_ops *ops = info->fbcon_par;
@@ -2774,9 +2773,9 @@ static int fbcon_scrolldelta(struct vc_data *vc, int lines)
 
 	if (softback_top) {
 		if (vc->vc_num != fg_console)
-			return 0;
+			return;
 		if (vc->vc_mode != KD_TEXT || !lines)
-			return 0;
+			return;
 		if (logo_shown >= 0) {
 			struct vc_data *conp2 = vc_cons[logo_shown].d;
 
@@ -2809,11 +2808,11 @@ static int fbcon_scrolldelta(struct vc_data *vc, int lines)
 		fbcon_cursor(vc, CM_ERASE | CM_SOFTBACK);
 		fbcon_redraw_softback(vc, disp, lines);
 		fbcon_cursor(vc, CM_DRAW | CM_SOFTBACK);
-		return 0;
+		return;
 	}
 
 	if (!scrollback_phys_max)
-		return -ENOSYS;
+		return;
 
 	scrollback_old = scrollback_current;
 	scrollback_current -= lines;
@@ -2822,10 +2821,10 @@ static int fbcon_scrolldelta(struct vc_data *vc, int lines)
 	else if (scrollback_current > scrollback_max)
 		scrollback_current = scrollback_max;
 	if (scrollback_current == scrollback_old)
-		return 0;
+		return;
 
 	if (fbcon_is_inactive(vc, info))
-		return 0;
+		return;
 
 	fbcon_cursor(vc, CM_ERASE);
 
@@ -2852,7 +2851,6 @@ static int fbcon_scrolldelta(struct vc_data *vc, int lines)
 
 	if (!scrollback_current)
 		fbcon_cursor(vc, CM_DRAW);
-	return 0;
 }
 
 static int fbcon_set_origin(struct vc_data *vc)
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index 8edc062536a8..234af26b4829 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -505,11 +505,6 @@ static int mdacon_blank(struct vc_data *c, int blank, int mode_switch)
 	}
 }
 
-static int mdacon_scrolldelta(struct vc_data *c, int lines)
-{
-	return 0;
-}
-
 static void mdacon_cursor(struct vc_data *c, int mode)
 {
 	if (mode == CM_ERASE) {
@@ -578,7 +573,6 @@ static const struct consw mda_con = {
 	.con_switch =		mdacon_switch,
 	.con_blank =		mdacon_blank,
 	.con_set_palette =	mdacon_set_palette,
-	.con_scrolldelta =	mdacon_scrolldelta,
 	.con_build_attr =	mdacon_build_attr,
 	.con_invert_region =	mdacon_invert_region,
 };
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index 0553dfe684ef..eb3d4ce12cd5 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -579,12 +579,6 @@ static int newport_set_palette(struct vc_data *vc, const unsigned char *table)
 	return -EINVAL;
 }
 
-static int newport_scrolldelta(struct vc_data *vc, int lines)
-{
-	/* there is (nearly) no off-screen memory, so we can't scroll back */
-	return 0;
-}
-
 static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
 			  int lines)
 {
@@ -735,7 +729,6 @@ const struct consw newport_con = {
 	.con_font_set	  = newport_font_set,
 	.con_font_default = newport_font_default,
 	.con_set_palette  = newport_set_palette,
-	.con_scrolldelta  = newport_scrolldelta,
 	.con_set_origin	  = DUMMY,
 	.con_save_screen  = DUMMY
 };
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index e440c2d9fe7c..20f6a2f5d4a7 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -256,11 +256,6 @@ static int sticon_blank(struct vc_data *c, int blank, int mode_switch)
     return 1;
 }
 
-static int sticon_scrolldelta(struct vc_data *conp, int lines)
-{
-    return 0;
-}
-
 static u16 *sticon_screen_pos(struct vc_data *conp, int offset)
 {
     int line;
@@ -359,7 +354,6 @@ static const struct consw sti_con = {
 	.con_switch		= sticon_switch,
 	.con_blank		= sticon_blank,
 	.con_set_palette	= sticon_set_palette,
-	.con_scrolldelta	= sticon_scrolldelta,
 	.con_set_origin		= sticon_set_origin,
 	.con_save_screen	= sticon_save_screen, 
 	.con_build_attr		= sticon_build_attr,
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 8bf911002cba..f447d6916991 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -80,7 +80,7 @@ static void vgacon_deinit(struct vc_data *c);
 static void vgacon_cursor(struct vc_data *c, int mode);
 static int vgacon_switch(struct vc_data *c);
 static int vgacon_blank(struct vc_data *c, int blank, int mode_switch);
-static int vgacon_scrolldelta(struct vc_data *c, int lines);
+static void vgacon_scrolldelta(struct vc_data *c, int lines);
 static int vgacon_set_origin(struct vc_data *c);
 static void vgacon_save_screen(struct vc_data *c);
 static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
@@ -248,18 +248,18 @@ static void vgacon_restore_screen(struct vc_data *c)
 	}
 }
 
-static int vgacon_scrolldelta(struct vc_data *c, int lines)
+static void vgacon_scrolldelta(struct vc_data *c, int lines)
 {
 	int start, end, count, soff;
 
 	if (!lines) {
 		c->vc_visible_origin = c->vc_origin;
 		vga_set_mem_top(c);
-		return 1;
+		return;
 	}
 
 	if (!vgacon_scrollback)
-		return 1;
+		return;
 
 	if (!vgacon_scrollback_save) {
 		vgacon_cursor(c, CM_ERASE);
@@ -320,8 +320,6 @@ static int vgacon_scrolldelta(struct vc_data *c, int lines)
 			scr_memcpyw(d, s, diff * c->vc_size_row);
 	} else
 		vgacon_cursor(c, CM_MOVE);
-
-	return 1;
 }
 #else
 #define vgacon_scrollback_startup(...) do { } while (0)
@@ -334,7 +332,7 @@ static void vgacon_restore_screen(struct vc_data *c)
 		vgacon_scrolldelta(c, 0);
 }
 
-static int vgacon_scrolldelta(struct vc_data *c, int lines)
+static void vgacon_scrolldelta(struct vc_data *c, int lines)
 {
 	if (!lines)		/* Turn scrollback off */
 		c->vc_visible_origin = c->vc_origin;
@@ -362,7 +360,6 @@ static int vgacon_scrolldelta(struct vc_data *c, int lines)
 		c->vc_visible_origin = vga_vram_base + (p + ul) % we;
 	}
 	vga_set_mem_top(c);
-	return 1;
 }
 #endif /* CONFIG_VGACON_SOFT_SCROLLBACK */
 
diff --git a/include/linux/console.h b/include/linux/console.h
index 98c8615dc300..d175de8d7006 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -28,6 +28,12 @@ struct tty_struct;
 #define VT100ID "\033[?1;2c"
 #define VT102ID "\033[?6c"
 
+/**
+ * struct consw - callbacks for consoles
+ *
+ * @con_scrolldelta: the contents of the console should be scrolled by @lines.
+ *		     Invoked by user. (optional)
+ */
 struct consw {
 	struct module *owner;
 	const char *(*con_startup)(void);
@@ -48,7 +54,7 @@ struct consw {
 	int     (*con_resize)(struct vc_data *, unsigned int, unsigned int,
 			       unsigned int);
 	int	(*con_set_palette)(struct vc_data *, const unsigned char *);
-	int	(*con_scrolldelta)(struct vc_data *, int);
+	void	(*con_scrolldelta)(struct vc_data *, int lines);
 	int	(*con_set_origin)(struct vc_data *);
 	void	(*con_save_screen)(struct vc_data *);
 	u8	(*con_build_attr)(struct vc_data *, u8, u8, u8, u8, u8, u8);
-- 
2.9.0



From - Thu Nov 08 21:39:04 2018
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From: Jiri Slaby <jslaby@suse.cz>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.usb.general,gmane.linux.ports.parisc
Subject: [PATCH 06/16] tty: vt, consw->con_set_palette cleanup
Date: Thu, 23 Jun 2016 13:34:27 +0200
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Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
	Jiri Slaby <jslaby@suse.cz>,
	Thomas Winischhofer <thomas@winischhofer.net>,
	linux-usb@vger.kernel.org,
	Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>,
	Tomi Valkeinen <tomi.valkeinen@ti.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>, linux-fbdev@vger.kernel.org,
	linux-parisc@vger.kernel.org
To: gregkh@linuxfoundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2251768>

* allow NULL consw->con_set_palette (some consoles define an empty
  hook)
* => remove empty hooks now
* return value of consw->con_set_palette is never checked => make the
  function void
* document consw->con_set_palette a bit

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: linux-usb@vger.kernel.org
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
---
 drivers/tty/vt/vt.c                     |  2 +-
 drivers/usb/misc/sisusbvga/sisusb_con.c | 11 ++++-------
 drivers/video/console/dummycon.c        |  1 -
 drivers/video/console/fbcon.c           | 10 +++++-----
 drivers/video/console/mdacon.c          |  6 ------
 drivers/video/console/newport_con.c     |  6 ------
 drivers/video/console/sticon.c          |  6 ------
 drivers/video/console/vgacon.c          |  7 ++-----
 include/linux/console.h                 |  4 +++-
 9 files changed, 15 insertions(+), 38 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 365a91d01a0e..d5d906051613 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -3978,7 +3978,7 @@ static void set_palette(struct vc_data *vc)
 {
 	WARN_CONSOLE_UNLOCKED();
 
-	if (vc->vc_mode != KD_GRAPHICS)
+	if (vc->vc_mode != KD_GRAPHICS && vc->vc_sw->con_set_palette)
 		vc->vc_sw->con_set_palette(vc, color_table);
 }
 
diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c
index a8244ebeb7a7..4112835f4aed 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -595,7 +595,7 @@ sisusbcon_save_screen(struct vc_data *c)
 }
 
 /* interface routine */
-static int
+static void
 sisusbcon_set_palette(struct vc_data *c, const unsigned char *table)
 {
 	struct sisusb_usb_data *sisusb;
@@ -604,17 +604,17 @@ sisusbcon_set_palette(struct vc_data *c, const unsigned char *table)
 	/* Return value not used by vt */
 
 	if (!CON_IS_VISIBLE(c))
-		return -EINVAL;
+		return;
 
 	sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
 	if (!sisusb)
-		return -EINVAL;
+		return;
 
 	/* sisusb->lock is down */
 
 	if (sisusb_is_inactive(c, sisusb)) {
 		mutex_unlock(&sisusb->lock);
-		return -EINVAL;
+		return;
 	}
 
 	for (i = j = 0; i < 16; i++) {
@@ -629,8 +629,6 @@ sisusbcon_set_palette(struct vc_data *c, const unsigned char *table)
 	}
 
 	mutex_unlock(&sisusb->lock);
-
-	return 0;
 }
 
 /* interface routine */
@@ -1428,7 +1426,6 @@ static const struct consw sisusb_dummy_con = {
 	.con_font_get =		SISUSBCONDUMMY,
 	.con_font_default =	SISUSBCONDUMMY,
 	.con_font_copy =	SISUSBCONDUMMY,
-	.con_set_palette =	SISUSBCONDUMMY,
 };
 
 int
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index 9ce03b9aba88..0ef544ef5634 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -71,6 +71,5 @@ const struct consw dummy_con = {
     .con_font_get =	DUMMY,
     .con_font_default =	DUMMY,
     .con_font_copy =	DUMMY,
-    .con_set_palette =	DUMMY,
 };
 EXPORT_SYMBOL_GPL(dummy_con);
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index eadc7bf62eb3..9359b06377cf 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -170,7 +170,7 @@ static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx,
 			int height, int width);
 static int fbcon_switch(struct vc_data *vc);
 static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch);
-static int fbcon_set_palette(struct vc_data *vc, const unsigned char *table);
+static void fbcon_set_palette(struct vc_data *vc, const unsigned char *table);
 
 /*
  *  Internal routines
@@ -2651,17 +2651,17 @@ static struct fb_cmap palette_cmap = {
 	0, 16, palette_red, palette_green, palette_blue, NULL
 };
 
-static int fbcon_set_palette(struct vc_data *vc, const unsigned char *table)
+static void fbcon_set_palette(struct vc_data *vc, const unsigned char *table)
 {
 	struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
 	int i, j, k, depth;
 	u8 val;
 
 	if (fbcon_is_inactive(vc, info))
-		return -EINVAL;
+		return;
 
 	if (!CON_IS_VISIBLE(vc))
-		return 0;
+		return;
 
 	depth = fb_get_color_depth(&info->var, &info->fix);
 	if (depth > 3) {
@@ -2683,7 +2683,7 @@ static int fbcon_set_palette(struct vc_data *vc, const unsigned char *table)
 	} else
 		fb_copy_cmap(fb_default_cmap(1 << depth), &palette_cmap);
 
-	return fb_set_cmap(&palette_cmap, info);
+	fb_set_cmap(&palette_cmap, info);
 }
 
 static u16 *fbcon_screen_pos(struct vc_data *vc, int offset)
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index 234af26b4829..1fe5245eb6dd 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -481,11 +481,6 @@ static int mdacon_switch(struct vc_data *c)
 	return 1;	/* redrawing needed */
 }
 
-static int mdacon_set_palette(struct vc_data *c, const unsigned char *table)
-{
-	return -EINVAL;
-}
-
 static int mdacon_blank(struct vc_data *c, int blank, int mode_switch)
 {
 	if (mda_type == TYPE_MDA) {
@@ -572,7 +567,6 @@ static const struct consw mda_con = {
 	.con_bmove =		mdacon_bmove,
 	.con_switch =		mdacon_switch,
 	.con_blank =		mdacon_blank,
-	.con_set_palette =	mdacon_set_palette,
 	.con_build_attr =	mdacon_build_attr,
 	.con_invert_region =	mdacon_invert_region,
 };
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index eb3d4ce12cd5..a436930f9e5d 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -574,11 +574,6 @@ static int newport_font_set(struct vc_data *vc, struct console_font *font, unsig
 	return newport_set_font(vc->vc_num, font);
 }
 
-static int newport_set_palette(struct vc_data *vc, const unsigned char *table)
-{
-	return -EINVAL;
-}
-
 static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
 			  int lines)
 {
@@ -728,7 +723,6 @@ const struct consw newport_con = {
 	.con_blank	  = newport_blank,
 	.con_font_set	  = newport_font_set,
 	.con_font_default = newport_font_default,
-	.con_set_palette  = newport_set_palette,
 	.con_set_origin	  = DUMMY,
 	.con_save_screen  = DUMMY
 };
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 20f6a2f5d4a7..fe7c4dbb676e 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -79,11 +79,6 @@ static const char *sticon_startup(void)
     return "STI console";
 }
 
-static int sticon_set_palette(struct vc_data *c, const unsigned char *table)
-{
-    return -EINVAL;
-}
-
 static void sticon_putc(struct vc_data *conp, int c, int ypos, int xpos)
 {
     int redraw_cursor = 0;
@@ -353,7 +348,6 @@ static const struct consw sti_con = {
 	.con_bmove		= sticon_bmove,
 	.con_switch		= sticon_switch,
 	.con_blank		= sticon_blank,
-	.con_set_palette	= sticon_set_palette,
 	.con_set_origin		= sticon_set_origin,
 	.con_save_screen	= sticon_save_screen, 
 	.con_build_attr		= sticon_build_attr,
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index f447d6916991..aaae9bd23900 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -856,16 +856,13 @@ static void vga_set_palette(struct vc_data *vc, const unsigned char *table)
 	}
 }
 
-static int vgacon_set_palette(struct vc_data *vc, const unsigned char *table)
+static void vgacon_set_palette(struct vc_data *vc, const unsigned char *table)
 {
 #ifdef CAN_LOAD_PALETTE
 	if (vga_video_type != VIDEO_TYPE_VGAC || vga_palette_blanked
 	    || !CON_IS_VISIBLE(vc))
-		return -EINVAL;
+		return;
 	vga_set_palette(vc, table);
-	return 0;
-#else
-	return -EINVAL;
 #endif
 }
 
diff --git a/include/linux/console.h b/include/linux/console.h
index d175de8d7006..382a527104c4 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -31,6 +31,7 @@ struct tty_struct;
 /**
  * struct consw - callbacks for consoles
  *
+ * @con_set_palette: sets the palette of the console to @table (optional)
  * @con_scrolldelta: the contents of the console should be scrolled by @lines.
  *		     Invoked by user. (optional)
  */
@@ -53,7 +54,8 @@ struct consw {
 	int	(*con_font_copy)(struct vc_data *, int);
 	int     (*con_resize)(struct vc_data *, unsigned int, unsigned int,
 			       unsigned int);
-	int	(*con_set_palette)(struct vc_data *, const unsigned char *);
+	void	(*con_set_palette)(struct vc_data *,
+			const unsigned char *table);
 	void	(*con_scrolldelta)(struct vc_data *, int lines);
 	int	(*con_set_origin)(struct vc_data *);
 	void	(*con_save_screen)(struct vc_data *);
-- 
2.9.0



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From - Thu Nov 08 21:39:04 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Newsgroups: gmane.comp.freedesktop.xorg.drivers.freedreno,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.linux.kernel.pci,gmane.comp.video.dri.devel,gmane.linux.ports.sparc,gmane.linux.kernel.samsung-soc,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.ports.arm.rockchip,gmane.comp.freedesktop.xorg.nouveau,gmane.linux.kernel.arc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.msm,gmane.linux.ports.arm.mediatek,gmane.linux.ports.arm.omap,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH v5 00/44] dma-mapping: Use unsigned long for
	dma_attrs
Date: Thu, 30 Jun 2016 10:23:39 +0200
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Approved: news@gmane.org
Message-ID: <1467275019-30789-1-git-send-email-k.kozlowski@samsung.com>
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Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org, Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
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From - Thu Nov 08 21:39:04 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!not-for-mail
From: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.kernel.arc,gmane.linux.ports.arm.rockchip,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.ppc64.devel
Subject: [PATCH v5 43/44] dma-mapping: Remove dma_get_attr
Date: Thu, 30 Jun 2016 10:26:10 +0200
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Approved: news@gmane.org
Message-ID: <1467275171-6298-43-git-send-email-k.kozlowski@samsung.com>
References: <1467275019-30789-1-git-send-email-k.kozlowski@samsung.com>
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Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org, Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
	linux-ia64-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>,
	linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, David Airlie <airlied-cv59FeDIM0c@public.gmane.org>,
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	"James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>,
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	Hans-Christian Egtvedt <egtvedt-BrfabpQBY5qlHtIdYg32fQ@public.gmane.org>,
	Jonas Bonn <jonas-A9uVI2HLR7kOP4wsBPIw7w@public.gmane.org>,
	Stefano Stabellini <sstabellini-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Pawel Osciak <pawel-FA/gS7QP4orQT0dZR+AlfA@public.gmane.org>, linux-snps-arc-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	Jonathan Corbet <corbet-T1hC0tSOHrs@public.gmane.org>, Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>,
	Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>, Russell King <linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org>,
	iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
	linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>, xen-devel@lists.
To: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/14330>

After switching DMA attributes to unsigned long it is easier to just
compare the bits.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
[for avr32]
Acked-by: Hans-Christian Noren Egtvedt <egtvedt-BrfabpQBY5qlHtIdYg32fQ@public.gmane.org>
[for arc]
Acked-by: Vineet Gupta <vgupta-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
[for arm64 and dma-iommu]
Acked-by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
---
 Documentation/DMA-API.txt                      |  4 +--
 arch/arc/mm/dma.c                              |  4 +--
 arch/arm/mm/dma-mapping.c                      | 36 ++++++++++++--------------
 arch/arm/xen/mm.c                              |  4 +--
 arch/arm64/mm/dma-mapping.c                    | 10 +++----
 arch/avr32/mm/dma-coherent.c                   |  4 +--
 arch/ia64/sn/pci/pci_dma.c                     | 10 ++-----
 arch/metag/kernel/dma.c                        |  2 +-
 arch/mips/mm/dma-default.c                     |  6 ++---
 arch/openrisc/kernel/dma.c                     |  4 +--
 arch/parisc/kernel/pci-dma.c                   |  2 +-
 arch/powerpc/platforms/cell/iommu.c            | 12 ++++-----
 drivers/gpu/drm/rockchip/rockchip_drm_gem.c    |  2 +-
 drivers/iommu/dma-iommu.c                      |  2 +-
 drivers/media/v4l2-core/videobuf2-dma-contig.c |  2 +-
 include/linux/dma-mapping.h                    | 10 -------
 16 files changed, 47 insertions(+), 67 deletions(-)

diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 24f9688bb98a..1d26eeb6b5f6 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -422,9 +422,7 @@ void whizco_dma_map_sg_attrs(struct device *dev, dma_addr_t dma_addr,
 			     unsigned long attrs)
 {
 	....
-	int foo =  dma_get_attr(DMA_ATTR_FOO, attrs);
-	....
-	if (foo)
+	if (attrs & DMA_ATTR_FOO)
 		/* twizzle the frobnozzle */
 	....
 
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 3d1f467d1792..74bbe68dce9d 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -46,7 +46,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
 	 *   (vs. always going to memory - thus are faster)
 	 */
 	if ((is_isa_arcv2() && ioc_exists) ||
-	    dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+	    (attrs & DMA_ATTR_NON_CONSISTENT))
 		need_coh = 0;
 
 	/*
@@ -95,7 +95,7 @@ static void arc_dma_free(struct device *dev, size_t size, void *vaddr,
 	struct page *page = virt_to_page(dma_handle);
 	int is_non_coh = 1;
 
-	is_non_coh = dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs) ||
+	is_non_coh = (attrs & DMA_ATTR_NON_CONSISTENT) ||
 			(is_isa_arcv2() && ioc_exists);
 
 	if (PageHighMem(page) || !is_non_coh)
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index ebb3fde99043..43e03b5293d0 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -126,7 +126,7 @@ static dma_addr_t arm_dma_map_page(struct device *dev, struct page *page,
 	     unsigned long offset, size_t size, enum dma_data_direction dir,
 	     unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__dma_page_cpu_to_dev(page, offset, size, dir);
 	return pfn_to_dma(dev, page_to_pfn(page)) + offset;
 }
@@ -155,7 +155,7 @@ static dma_addr_t arm_coherent_dma_map_page(struct device *dev, struct page *pag
 static void arm_dma_unmap_page(struct device *dev, dma_addr_t handle,
 		size_t size, enum dma_data_direction dir, unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__dma_page_dev_to_cpu(pfn_to_page(dma_to_pfn(dev, handle)),
 				      handle & ~PAGE_MASK, size, dir);
 }
@@ -622,9 +622,9 @@ static void __free_from_contiguous(struct device *dev, struct page *page,
 
 static inline pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot)
 {
-	prot = dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs) ?
-			    pgprot_writecombine(prot) :
-			    pgprot_dmacoherent(prot);
+	prot = (attrs & DMA_ATTR_WRITE_COMBINE) ?
+			pgprot_writecombine(prot) :
+			pgprot_dmacoherent(prot);
 	return prot;
 }
 
@@ -744,7 +744,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 		.gfp = gfp,
 		.prot = prot,
 		.caller = caller,
-		.want_vaddr = !dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs),
+		.want_vaddr = ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0),
 	};
 
 #ifdef CONFIG_DMA_API_DEBUG
@@ -887,7 +887,7 @@ static void __arm_dma_free(struct device *dev, size_t size, void *cpu_addr,
 		.size = PAGE_ALIGN(size),
 		.cpu_addr = cpu_addr,
 		.page = page,
-		.want_vaddr = !dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs),
+		.want_vaddr = ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0),
 	};
 
 	buf = arm_dma_buffer_find(cpu_addr);
@@ -1267,7 +1267,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size,
 	if (!pages)
 		return NULL;
 
-	if (dma_get_attr(DMA_ATTR_FORCE_CONTIGUOUS, attrs))
+	if (attrs & DMA_ATTR_FORCE_CONTIGUOUS)
 	{
 		unsigned long order = get_order(size);
 		struct page *page;
@@ -1285,7 +1285,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size,
 	}
 
 	/* Go straight to 4K chunks if caller says it's OK. */
-	if (dma_get_attr(DMA_ATTR_ALLOC_SINGLE_PAGES, attrs))
+	if (attrs & DMA_ATTR_ALLOC_SINGLE_PAGES)
 		order_idx = ARRAY_SIZE(iommu_order_array) - 1;
 
 	/*
@@ -1346,7 +1346,7 @@ static int __iommu_free_buffer(struct device *dev, struct page **pages,
 	int count = size >> PAGE_SHIFT;
 	int i;
 
-	if (dma_get_attr(DMA_ATTR_FORCE_CONTIGUOUS, attrs)) {
+	if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
 		dma_release_from_contiguous(dev, pages[0], count);
 	} else {
 		for (i = 0; i < count; i++)
@@ -1445,7 +1445,7 @@ static struct page **__iommu_get_pages(void *cpu_addr, unsigned long attrs)
 	if (__in_atomic_pool(cpu_addr, PAGE_SIZE))
 		return __atomic_get_pages(cpu_addr);
 
-	if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs))
+	if (attrs & DMA_ATTR_NO_KERNEL_MAPPING)
 		return cpu_addr;
 
 	area = find_vm_area(cpu_addr);
@@ -1512,7 +1512,7 @@ static void *arm_iommu_alloc_attrs(struct device *dev, size_t size,
 	if (*handle == DMA_ERROR_CODE)
 		goto err_buffer;
 
-	if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs))
+	if (attrs & DMA_ATTR_NO_KERNEL_MAPPING)
 		return pages;
 
 	addr = __iommu_alloc_remap(pages, size, gfp, prot,
@@ -1583,7 +1583,7 @@ void arm_iommu_free_attrs(struct device *dev, size_t size, void *cpu_addr,
 		return;
 	}
 
-	if (!dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs)) {
+	if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0) {
 		dma_common_free_remap(cpu_addr, size,
 			VM_ARM_DMA_CONSISTENT | VM_USERMAP);
 	}
@@ -1653,8 +1653,7 @@ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg,
 		phys_addr_t phys = page_to_phys(sg_page(s));
 		unsigned int len = PAGE_ALIGN(s->offset + s->length);
 
-		if (!is_coherent &&
-			!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+		if (!is_coherent && (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 			__dma_page_cpu_to_dev(sg_page(s), s->offset, s->length, dir);
 
 		prot = __dma_direction_to_prot(dir);
@@ -1767,8 +1766,7 @@ static void __iommu_unmap_sg(struct device *dev, struct scatterlist *sg,
 		if (sg_dma_len(s))
 			__iommu_remove_mapping(dev, sg_dma_address(s),
 					       sg_dma_len(s));
-		if (!is_coherent &&
-		    !dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+		if (!is_coherent && (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 			__dma_page_dev_to_cpu(sg_page(s), s->offset,
 					      s->length, dir);
 	}
@@ -1892,7 +1890,7 @@ static dma_addr_t arm_iommu_map_page(struct device *dev, struct page *page,
 	     unsigned long offset, size_t size, enum dma_data_direction dir,
 	     unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__dma_page_cpu_to_dev(page, offset, size, dir);
 
 	return arm_coherent_iommu_map_page(dev, page, offset, size, dir, attrs);
@@ -1943,7 +1941,7 @@ static void arm_iommu_unmap_page(struct device *dev, dma_addr_t handle,
 	if (!iova)
 		return;
 
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__dma_page_dev_to_cpu(page, offset, size, dir);
 
 	iommu_unmap(mapping->domain, iova, len);
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index fc67ed236a10..d062f08f5020 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -102,7 +102,7 @@ void __xen_dma_map_page(struct device *hwdev, struct page *page,
 {
 	if (is_device_dma_coherent(hwdev))
 		return;
-	if (dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
 		return;
 
 	__xen_dma_page_cpu_to_dev(hwdev, dev_addr, size, dir);
@@ -115,7 +115,7 @@ void __xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
 {
 	if (is_device_dma_coherent(hwdev))
 		return;
-	if (dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
 		return;
 
 	__xen_dma_page_dev_to_cpu(hwdev, handle, size, dir);
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 65f69943b1cb..e82763af137f 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -32,7 +32,7 @@
 static pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot,
 				 bool coherent)
 {
-	if (!coherent || dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+	if (!coherent || (attrs & DMA_ATTR_WRITE_COMBINE))
 		return pgprot_writecombine(prot);
 	return prot;
 }
@@ -701,7 +701,7 @@ static dma_addr_t __iommu_map_page(struct device *dev, struct page *page,
 	dma_addr_t dev_addr = iommu_dma_map_page(dev, page, offset, size, prot);
 
 	if (!iommu_dma_mapping_error(dev, dev_addr) &&
-	    !dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	    (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__iommu_sync_single_for_device(dev, dev_addr, size, dir);
 
 	return dev_addr;
@@ -711,7 +711,7 @@ static void __iommu_unmap_page(struct device *dev, dma_addr_t dev_addr,
 			       size_t size, enum dma_data_direction dir,
 			       unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__iommu_sync_single_for_cpu(dev, dev_addr, size, dir);
 
 	iommu_dma_unmap_page(dev, dev_addr, size, dir, attrs);
@@ -751,7 +751,7 @@ static int __iommu_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
 {
 	bool coherent = is_device_dma_coherent(dev);
 
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__iommu_sync_sg_for_device(dev, sgl, nelems, dir);
 
 	return iommu_dma_map_sg(dev, sgl, nelems,
@@ -763,7 +763,7 @@ static void __iommu_unmap_sg_attrs(struct device *dev,
 				   enum dma_data_direction dir,
 				   unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__iommu_sync_sg_for_cpu(dev, sgl, nelems, dir);
 
 	iommu_dma_unmap_sg(dev, sgl, nelems, dir, attrs);
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
index fc51f4421933..58610d0df7ed 100644
--- a/arch/avr32/mm/dma-coherent.c
+++ b/arch/avr32/mm/dma-coherent.c
@@ -109,7 +109,7 @@ static void *avr32_dma_alloc(struct device *dev, size_t size,
 		return NULL;
 	phys = page_to_phys(page);
 
-	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs)) {
+	if (attrs & DMA_ATTR_WRITE_COMBINE) {
 		/* Now, map the page into P3 with write-combining turned on */
 		*handle = phys;
 		return __ioremap(phys, size, _PAGE_BUFFER);
@@ -123,7 +123,7 @@ static void avr32_dma_free(struct device *dev, size_t size,
 {
 	struct page *page;
 
-	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs)) {
+	if (attrs & DMA_ATTR_WRITE_COMBINE) {
 		iounmap(cpu_addr);
 
 		page = phys_to_page(handle);
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index 6b78fc953c4b..74c934a997bb 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -183,14 +183,11 @@ static dma_addr_t sn_dma_map_page(struct device *dev, struct page *page,
 	unsigned long phys_addr;
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
-	int dmabarr;
-
-	dmabarr = dma_get_attr(DMA_ATTR_WRITE_BARRIER, attrs);
 
 	BUG_ON(!dev_is_pci(dev));
 
 	phys_addr = __pa(cpu_addr);
-	if (dmabarr)
+	if (attrs & DMA_ATTR_WRITE_BARRIER)
 		dma_addr = provider->dma_map_consistent(pdev, phys_addr,
 							size, SN_DMA_ADDR_PHYS);
 	else
@@ -280,9 +277,6 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
 	int i;
-	int dmabarr;
-
-	dmabarr = dma_get_attr(DMA_ATTR_WRITE_BARRIER, attrs);
 
 	BUG_ON(!dev_is_pci(dev));
 
@@ -292,7 +286,7 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
 	for_each_sg(sgl, sg, nhwentries, i) {
 		dma_addr_t dma_addr;
 		phys_addr = SG_ENT_PHYS_ADDRESS(sg);
-		if (dmabarr)
+		if (attrs & DMA_ATTR_WRITE_BARRIER)
 			dma_addr = provider->dma_map_consistent(pdev,
 								phys_addr,
 								sg->length,
diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index d68f498e82a1..0db31e24c541 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -337,7 +337,7 @@ static int metag_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 	struct metag_vm_region *c;
 	int ret = -ENXIO;
 
-	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+	if (attrs & DMA_ATTR_WRITE_COMBINE)
 		vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 	else
 		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 0ed9000dc1ff..b2eadd6fa9a1 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -141,7 +141,7 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
 	 * XXX: seems like the coherent and non-coherent implementations could
 	 * be consolidated.
 	 */
-	if (dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+	if (attrs & DMA_ATTR_NON_CONSISTENT)
 		return mips_dma_alloc_noncoherent(dev, size, dma_handle, gfp);
 
 	gfp = massage_gfp_flags(dev, gfp);
@@ -182,7 +182,7 @@ static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	struct page *page = NULL;
 
-	if (dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) {
+	if (attrs & DMA_ATTR_NON_CONSISTENT) {
 		mips_dma_free_noncoherent(dev, size, vaddr, dma_handle);
 		return;
 	}
@@ -214,7 +214,7 @@ static int mips_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 
 	pfn = page_to_pfn(virt_to_page((void *)addr));
 
-	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+	if (attrs & DMA_ATTR_WRITE_COMBINE)
 		vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 	else
 		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index 50eb1f26c540..140c99140649 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -100,7 +100,7 @@ or1k_dma_alloc(struct device *dev, size_t size,
 
 	va = (unsigned long)page;
 
-	if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) {
+	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0) {
 		/*
 		 * We need to iterate through the pages, clearing the dcache for
 		 * them and setting the cache-inhibit bit.
@@ -124,7 +124,7 @@ or1k_dma_free(struct device *dev, size_t size, void *vaddr,
 		.mm = &init_mm
 	};
 
-	if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) {
+	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0) {
 		/* walk_page_range shouldn't be able to fail here */
 		WARN_ON(walk_page_range(va, va + size, &walk));
 	}
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 845fdd52e4c5..02d9ed0f3949 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -581,7 +581,7 @@ static void *pcx_dma_alloc(struct device *dev, size_t size,
 {
 	void *addr;
 
-	if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0)
 		return NULL;
 
 	addr = (void *)__get_free_pages(flag, get_order(size));
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index c8e11e020335..6128bdb428b2 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -193,7 +193,7 @@ static int tce_build_cell(struct iommu_table *tbl, long index, long npages,
 	base_pte = CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_M |
 		CBE_IOPTE_SO_RW | (window->ioid & CBE_IOPTE_IOID_Mask);
 #endif
-	if (unlikely(dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs)))
+	if (unlikely(attrs & DMA_ATTR_WEAK_ORDERING))
 		base_pte &= ~CBE_IOPTE_SO_RW;
 
 	io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset);
@@ -600,7 +600,7 @@ static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page,
 				     enum dma_data_direction direction,
 				     unsigned long attrs)
 {
-	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
 		return dma_direct_ops.map_page(dev, page, offset, size,
 					       direction, attrs);
 	else
@@ -613,7 +613,7 @@ static void dma_fixed_unmap_page(struct device *dev, dma_addr_t dma_addr,
 				 size_t size, enum dma_data_direction direction,
 				 unsigned long attrs)
 {
-	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
 		dma_direct_ops.unmap_page(dev, dma_addr, size, direction,
 					  attrs);
 	else
@@ -625,7 +625,7 @@ static int dma_fixed_map_sg(struct device *dev, struct scatterlist *sg,
 			   int nents, enum dma_data_direction direction,
 			   unsigned long attrs)
 {
-	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
 		return dma_direct_ops.map_sg(dev, sg, nents, direction, attrs);
 	else
 		return ppc_iommu_map_sg(dev, cell_get_iommu_table(dev), sg,
@@ -637,7 +637,7 @@ static void dma_fixed_unmap_sg(struct device *dev, struct scatterlist *sg,
 			       int nents, enum dma_data_direction direction,
 			       unsigned long attrs)
 {
-	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
 		dma_direct_ops.unmap_sg(dev, sg, nents, direction, attrs);
 	else
 		ppc_iommu_unmap_sg(cell_get_iommu_table(dev), sg, nents,
@@ -1162,7 +1162,7 @@ static int __init setup_iommu_fixed(char *str)
 	pciep = of_find_node_by_type(NULL, "pcie-endpoint");
 
 	if (strcmp(str, "weak") == 0 || (pciep && strcmp(str, "strong") != 0))
-		iommu_fixed_is_weak = 1;
+		iommu_fixed_is_weak = DMA_ATTR_WEAK_ORDERING;
 
 	of_node_put(pciep);
 
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
index 7b1788e2a808..4a28d6348c76 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
@@ -273,7 +273,7 @@ void *rockchip_gem_prime_vmap(struct drm_gem_object *obj)
 {
 	struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj);
 
-	if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, rk_obj->dma_attrs))
+	if (rk_obj->dma_attrs & DMA_ATTR_NO_KERNEL_MAPPING)
 		return NULL;
 
 	return rk_obj->kvaddr;
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 6c1bda504fb1..08a1e2f3690f 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -306,7 +306,7 @@ struct page **iommu_dma_alloc(struct device *dev, size_t size, gfp_t gfp,
 	} else {
 		size = ALIGN(size, min_size);
 	}
-	if (dma_get_attr(DMA_ATTR_ALLOC_SINGLE_PAGES, attrs))
+	if (attrs & DMA_ATTR_ALLOC_SINGLE_PAGES)
 		alloc_sizes = min_size;
 
 	count = PAGE_ALIGN(size) >> PAGE_SHIFT;
diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c
index 8009a582326b..d2ab541614b8 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-contig.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c
@@ -160,7 +160,7 @@ static void *vb2_dc_alloc(void *alloc_ctx, unsigned long size,
 		return ERR_PTR(-ENOMEM);
 	}
 
-	if (!dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, buf->attrs))
+	if ((buf->attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0)
 		buf->vaddr = buf->cookie;
 
 	/* Prevent the device from being released while the buffer is used */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 1fd9860487b1..d8fb67783cb7 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -101,16 +101,6 @@ static inline int is_device_dma_capable(struct device *dev)
 	return dev->dma_mask != NULL && *dev->dma_mask != DMA_MASK_NONE;
 }
 
-/**
- * dma_get_attr - check for a specific attribute
- * @attr: attribute to look for
- * @attrs: attributes to check within
- */
-static inline bool dma_get_attr(unsigned long attr, unsigned long attrs)
-{
-	return !!(attr & attrs);
-}
-
 #ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
 /*
  * These three functions are only for dma allocator.
-- 
1.9.1


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Subject: [PATCH v5 35/44] parisc: dma-mapping: Use unsigned long for dma_attrs
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Split out subsystem specific changes for easier reviews. This will be
squashed with main commit.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 arch/parisc/kernel/pci-dma.c | 16 ++++++++--------
 drivers/parisc/ccio-dma.c    | 16 ++++++++--------
 drivers/parisc/sba_iommu.c   | 16 ++++++++--------
 3 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index a27e4928bf73..845fdd52e4c5 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -414,7 +414,7 @@ pcxl_dma_init(void)
 __initcall(pcxl_dma_init);
 
 static void *pa11_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
+		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
 {
 	unsigned long vaddr;
 	unsigned long paddr;
@@ -441,7 +441,7 @@ static void *pa11_dma_alloc(struct device *dev, size_t size,
 }
 
 static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t dma_handle, struct dma_attrs *attrs)
+		dma_addr_t dma_handle, unsigned long attrs)
 {
 	int order;
 
@@ -454,7 +454,7 @@ static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
 
 static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
 		unsigned long offset, size_t size,
-		enum dma_data_direction direction, struct dma_attrs *attrs)
+		enum dma_data_direction direction, unsigned long attrs)
 {
 	void *addr = page_address(page) + offset;
 	BUG_ON(direction == DMA_NONE);
@@ -465,7 +465,7 @@ static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
 
 static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 		size_t size, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	BUG_ON(direction == DMA_NONE);
 
@@ -484,7 +484,7 @@ static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 
 static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
 		int nents, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -503,7 +503,7 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
 
 static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 		int nents, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -577,7 +577,7 @@ struct dma_map_ops pcxl_dma_ops = {
 };
 
 static void *pcx_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
+		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
 {
 	void *addr;
 
@@ -592,7 +592,7 @@ static void *pcx_dma_alloc(struct device *dev, size_t size,
 }
 
 static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t iova, struct dma_attrs *attrs)
+		dma_addr_t iova, unsigned long attrs)
 {
 	free_pages((unsigned long)vaddr, get_order(size));
 	return;
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index e24b05996a1b..3ed6238f8f6e 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -790,7 +790,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
 static dma_addr_t
 ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
 		size_t size, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	return ccio_map_single(dev, page_address(page) + offset, size,
 			direction);
@@ -806,7 +806,7 @@ ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
  */
 static void 
 ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
-		enum dma_data_direction direction, struct dma_attrs *attrs)
+		enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 	unsigned long flags; 
@@ -844,7 +844,7 @@ ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
  */
 static void * 
 ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
       void *ret;
 #if 0
@@ -878,9 +878,9 @@ ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
  */
 static void 
 ccio_free(struct device *dev, size_t size, void *cpu_addr,
-		dma_addr_t dma_handle, struct dma_attrs *attrs)
+		dma_addr_t dma_handle, unsigned long attrs)
 {
-	ccio_unmap_page(dev, dma_handle, size, 0, NULL);
+	ccio_unmap_page(dev, dma_handle, size, 0, 0);
 	free_pages((unsigned long)cpu_addr, get_order(size));
 }
 
@@ -907,7 +907,7 @@ ccio_free(struct device *dev, size_t size, void *cpu_addr,
  */
 static int
 ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents, 
-	    enum dma_data_direction direction, struct dma_attrs *attrs)
+	    enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 	int coalesced, filled = 0;
@@ -984,7 +984,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
  */
 static void 
 ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, 
-	      enum dma_data_direction direction, struct dma_attrs *attrs)
+	      enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 
@@ -1004,7 +1004,7 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 		ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
 #endif
 		ccio_unmap_page(dev, sg_dma_address(sglist),
-				  sg_dma_len(sglist), direction, NULL);
+				  sg_dma_len(sglist), direction, 0);
 		++sglist;
 	}
 
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 42ec4600b7e4..151b86b6d2e2 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -783,7 +783,7 @@ sba_map_single(struct device *dev, void *addr, size_t size,
 static dma_addr_t
 sba_map_page(struct device *dev, struct page *page, unsigned long offset,
 		size_t size, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	return sba_map_single(dev, page_address(page) + offset, size,
 			direction);
@@ -801,7 +801,7 @@ sba_map_page(struct device *dev, struct page *page, unsigned long offset,
  */
 static void
 sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
-		enum dma_data_direction direction, struct dma_attrs *attrs)
+		enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 #if DELAYED_RESOURCE_CNT > 0
@@ -876,7 +876,7 @@ sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
  * See Documentation/DMA-API-HOWTO.txt
  */
 static void *sba_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle,
-		gfp_t gfp, struct dma_attrs *attrs)
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -908,9 +908,9 @@ static void *sba_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle
  */
 static void
 sba_free(struct device *hwdev, size_t size, void *vaddr,
-		    dma_addr_t dma_handle, struct dma_attrs *attrs)
+		    dma_addr_t dma_handle, unsigned long attrs)
 {
-	sba_unmap_page(hwdev, dma_handle, size, 0, NULL);
+	sba_unmap_page(hwdev, dma_handle, size, 0, 0);
 	free_pages((unsigned long) vaddr, get_order(size));
 }
 
@@ -943,7 +943,7 @@ int dump_run_sg = 0;
  */
 static int
 sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	   enum dma_data_direction direction, struct dma_attrs *attrs)
+	   enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 	int coalesced, filled = 0;
@@ -1026,7 +1026,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
  */
 static void 
 sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	     enum dma_data_direction direction, struct dma_attrs *attrs)
+	     enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 #ifdef ASSERT_PDIR_SANITY
@@ -1051,7 +1051,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	while (sg_dma_len(sglist) && nents--) {
 
 		sba_unmap_page(dev, sg_dma_address(sglist), sg_dma_len(sglist),
-				direction, NULL);
+				direction, 0);
 #ifdef SBA_COLLECT_STATS
 		ioc->usg_pages += ((sg_dma_address(sglist) & ~IOVP_MASK) + sg_dma_len(sglist) + IOVP_SIZE - 1) >> PAGE_SHIFT;
 		ioc->usingle_calls--;	/* kluge since call is unmap_sg() */
-- 
1.9.1



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Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: Re: parisc late boot crash in 4.4-rc, scsi-related
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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> > What distro are you using?
> > 
> > My pariscs are gentoo and still only the old versions are available on
> > hppa.
> 
> Several newer versions (4.9, 5.3) are in portage, maybe they just need to be 
> unmasked.

4.9.3 and 5.3.0 were too old.

However, at the end of June, 5.4.0 appeared masked. Unmasking kgcc64 
5.4.0 and building it made my pariscs work again, with 4.7-rc6 running 
fine on all of them.

-- 
Meelis Roos (mroos@linux.ee)
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.scsi
Subject: Re: parisc late boot crash in 4.4-rc, scsi-related
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On 2016-07-06 2:59 AM, Meelis Roos wrote:
>>> What distro are you using?
>>>
>>> My pariscs are gentoo and still only the old versions are available on
>>> hppa.
>> Several newer versions (4.9, 5.3) are in portage, maybe they just need to be
>> unmasked.
> 4.9.3 and 5.3.0 were too old.
Correct.  4.9.4 will include fix if it is released.
>
> However, at the end of June, 5.4.0 appeared masked. Unmasking kgcc64
> 5.4.0 and building it made my pariscs work again, with 4.7-rc6 running
> fine on all of them.
Great!  Thanks for report.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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From - Thu Nov 08 21:39:05 2018
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Newsgroups: gmane.comp.freedesktop.xorg.drivers.freedreno,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.linux.kernel.pci,gmane.comp.video.dri.devel,gmane.linux.ports.sparc,gmane.linux.kernel.samsung-soc,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.ports.arm.rockchip,gmane.comp.freedesktop.xorg.nouveau,gmane.linux.kernel.arc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.msm,gmane.linux.ports.arm.mediatek,gmane.linux.ports.arm.omap,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha
Subject: Re: [PATCH v5 00/44] dma-mapping: Use unsigned long for
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Xref: news.gmane.org gmane.comp.freedesktop.xorg.drivers.freedreno:186 gmane.linux.ports.mips.general:55458 gmane.linux.ports.ia64:27039 gmane.linux.documentation:39683 gmane.linux.kernel.pci:53367 gmane.comp.video.dri.devel:159353 gmane.linux.ports.sparc:23241 gmane.linux.kernel.samsung-soc:55331 gmane.linux.drivers.rdma:38583 gmane.linux.ports.hexagon:1034 gmane.linux.ports.sh.devel:54373 gmane.linux.ports.arm.rockchip:8180 gmane.comp.freedesktop.xorg.nouveau:25377 gmane.linux.kernel.arc:1319 gmane.linux.drivers.video-input-infrastructure:104308 gmane.linux.ports.arm.msm:20281 gmane.linux.ports.arm.mediatek:6043 gmane.linux.ports.arm.omap:137536 gmane.linux.kernel.metag:1118 gmane.linux.ports.arm.kernel:513575 gmane.linux.ports.parisc:26923 gmane.linux.ports.ppc64.devel:130058 gmane.linux.kernel:2264002 gmane.linux.kernel.iommu:14476 gmane.linux.ports.alpha:3844
Archived-At: <http://permalink.gmane.org/gmane.comp.freedesktop.xorg.drivers.freedreno/186>

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From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.linux.kernel.pci,gmane.comp.video.dri.devel,gmane.linux.ports.sparc,gmane.linux.kernel.samsung-soc,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.ports.arm.rockchip,gmane.comp.freedesktop.xorg.nouveau,gmane.linux.kernel.arc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.msm,gmane.linux.ports.arm.mediatek,gmane.linux.ports.arm.omap,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.comp.freedesktop.xorg.drivers.freedreno
Subject: Re: [PATCH v5 00/44] dma-mapping: Use unsigned long for dma_attrs
Date: Tue, 12 Jul 2016 14:19:07 +0200
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On 07/12/2016 02:16 PM, Daniel Vetter wrote:
> On Thu, Jun 30, 2016 at 10:23:39AM +0200, Krzysztof Kozlowski wrote:
>> Hi,
>>
>>
>> This is fifth approach for replacing struct dma_attrs with unsigned
>> long.
>>
>> The main patch (1/44) doing the change is split into many subpatches
>> for easier review (2-42).  They should be squashed together when
>> applying.
> 
> For all the drm driver patches:
> 
> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> 
> Should I pull these in through drm-misc, or do you prefer to merge them
> through a special topic branch (with everything else) instead on your own?
> -Daniel

Thanks. I saw today that Andrew Morton applied the patchset so I think
he will handle it.

Best regards,
Krzysztof


From - Thu Nov 08 21:39:05 2018
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From: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.linux.kernel.pci,gmane.comp.video.dri.devel,gmane.linux.ports.sparc,gmane.linux.kernel.samsung-soc,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.ports.arm.rockchip,gmane.comp.freedesktop.xorg.nouveau,gmane.linux.kernel.arc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.msm,gmane.linux.ports.arm.mediatek,gmane.linux.ports.arm.omap,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.comp.freedesktop.xorg.drivers.freedreno,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH v6 00/46] dma-mapping: Use unsigned long for dma_attrs
Date: Wed, 13 Jul 2016 10:39:27 +0200
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	Bartlomiej Zolnierkiewicz <b.zolnierkie-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
	linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-m68k-cunTk1MwBs8S/qaLPR03pWD2FQJk+8+b@public.gmane.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/14487>

Hi,

The fifth version of this patchset was merged by Andrew Morton
few days ago.  It was rebased on v4.7-rc5 so it missed some ongoing
changes.

This is just rebase on next-20160713.


For easier testing the patchset is available here:
repo:   https://github.com/krzk/linux
branch: for-next/dma-attrs-const-v6


Changes since v5
================
1. New patches:
   1/46:  [media] mtk-vcodec: Remove unused dma_attrs
   44/46: remoteproc: qcom: Use unsigned long for dma_attrs
2. 19/46: rebased on next, some more changes inside
3. Added accumulated acks: Marek Szyprowski, Richard Kuo,
   Konrad Rzeszutek Wilk, Daniel Vetter and Joerg Roedel.


Changes since v4
================
1. Collect some acks. Still need more.
2. Minor fixes pointed by Robin Murphy.
3. Applied changes from Bart Van Assche's comment.
4. More tests and builds (using https://www.kernel.org/pub/tools/crosstool/).


Changes since v3
================
1. Collect some acks.
2. Drop wrong patch 1/45 ("powerpc: dma-mapping: Don't hard-code
   the value of DMA_ATTR_WEAK_ORDERING").
3. Minor fix pointed out by Michael Ellerman.


Changes since v2
================
1. Follow Christoph Hellwig's comments (don't use BIT add
   documentation, remove dma_get_attr).


Rationale
=========
The dma-mapping core and the implementations do not change the
DMA attributes passed by pointer.  Thus the pointer can point to const
data.  However the attributes do not have to be a bitfield. Instead
unsigned long will do fine:

1. This is just simpler.  Both in terms of reading the code and setting
   attributes.  Instead of initializing local attributes on the stack
   and passing pointer to it to dma_set_attr(), just set the bits.

2. It brings safeness and checking for const correctness because the
   attributes are passed by value.


Best regards,
Krzysztof


Krzysztof Kozlowski (46):
  [media] mtk-vcodec: Remove unused dma_attrs
  dma-mapping: Use unsigned long for dma_attrs
  alpha: dma-mapping: Use unsigned long for dma_attrs
  arc: dma-mapping: Use unsigned long for dma_attrs
  ARM: dma-mapping: Use unsigned long for dma_attrs
  arm64: dma-mapping: Use unsigned long for dma_attrs
  avr32: dma-mapping: Use unsigned long for dma_attrs
  blackfin: dma-mapping: Use unsigned long for dma_attrs
  c6x: dma-mapping: Use unsigned long for dma_attrs
  cris: dma-mapping: Use unsigned long for dma_attrs
  frv: dma-mapping: Use unsigned long for dma_attrs
  drm/exynos: dma-mapping: Use unsigned long for dma_attrs
  drm/mediatek: dma-mapping: Use unsigned long for dma_attrs
  drm/msm: dma-mapping: Use unsigned long for dma_attrs
  drm/nouveau: dma-mapping: Use unsigned long for dma_attrs
  drm/rockship: dma-mapping: Use unsigned long for dma_attrs
  infiniband: dma-mapping: Use unsigned long for dma_attrs
  iommu: dma-mapping: Use unsigned long for dma_attrs
  [media] dma-mapping: Use unsigned long for dma_attrs
  xen: dma-mapping: Use unsigned long for dma_attrs
  swiotlb: dma-mapping: Use unsigned long for dma_attrs
  powerpc: dma-mapping: Use unsigned long for dma_attrs
  video: dma-mapping: Use unsigned long for dma_attrs
  x86: dma-mapping: Use unsigned long for dma_attrs
  iommu: intel: dma-mapping: Use unsigned long for dma_attrs
  h8300: dma-mapping: Use unsigned long for dma_attrs
  hexagon: dma-mapping: Use unsigned long for dma_attrs
  ia64: dma-mapping: Use unsigned long for dma_attrs
  m68k: dma-mapping: Use unsigned long for dma_attrs
  metag: dma-mapping: Use unsigned long for dma_attrs
  microblaze: dma-mapping: Use unsigned long for dma_attrs
  mips: dma-mapping: Use unsigned long for dma_attrs
  mn10300: dma-mapping: Use unsigned long for dma_attrs
  nios2: dma-mapping: Use unsigned long for dma_attrs
  openrisc: dma-mapping: Use unsigned long for dma_attrs
  parisc: dma-mapping: Use unsigned long for dma_attrs
  misc: mic: dma-mapping: Use unsigned long for dma_attrs
  s390: dma-mapping: Use unsigned long for dma_attrs
  sh: dma-mapping: Use unsigned long for dma_attrs
  sparc: dma-mapping: Use unsigned long for dma_attrs
  tile: dma-mapping: Use unsigned long for dma_attrs
  unicore32: dma-mapping: Use unsigned long for dma_attrs
  xtensa: dma-mapping: Use unsigned long for dma_attrs
  remoteproc: qcom: Use unsigned long for dma_attrs
  dma-mapping: Remove dma_get_attr
  dma-mapping: Document the DMA attributes next to the declaration

 Documentation/DMA-API.txt                          |  33 +++---
 Documentation/DMA-attributes.txt                   |   2 +-
 arch/alpha/include/asm/dma-mapping.h               |   2 -
 arch/alpha/kernel/pci-noop.c                       |   2 +-
 arch/alpha/kernel/pci_iommu.c                      |  12 +-
 arch/arc/mm/dma.c                                  |  12 +-
 arch/arm/common/dmabounce.c                        |   4 +-
 arch/arm/include/asm/dma-mapping.h                 |  13 +--
 arch/arm/include/asm/xen/page-coherent.h           |  16 +--
 arch/arm/mm/dma-mapping.c                          | 117 +++++++++----------
 arch/arm/xen/mm.c                                  |   8 +-
 arch/arm64/mm/dma-mapping.c                        |  66 +++++------
 arch/avr32/mm/dma-coherent.c                       |  12 +-
 arch/blackfin/kernel/dma-mapping.c                 |   8 +-
 arch/c6x/include/asm/dma-mapping.h                 |   4 +-
 arch/c6x/kernel/dma.c                              |   9 +-
 arch/c6x/mm/dma-coherent.c                         |   4 +-
 arch/cris/arch-v32/drivers/pci/dma.c               |   9 +-
 arch/frv/mb93090-mb00/pci-dma-nommu.c              |   8 +-
 arch/frv/mb93090-mb00/pci-dma.c                    |   9 +-
 arch/h8300/kernel/dma.c                            |   8 +-
 arch/hexagon/include/asm/dma-mapping.h             |   1 -
 arch/hexagon/kernel/dma.c                          |   8 +-
 arch/ia64/hp/common/sba_iommu.c                    |  22 ++--
 arch/ia64/include/asm/machvec.h                    |   1 -
 arch/ia64/kernel/pci-swiotlb.c                     |   4 +-
 arch/ia64/sn/pci/pci_dma.c                         |  22 ++--
 arch/m68k/kernel/dma.c                             |  12 +-
 arch/metag/kernel/dma.c                            |  16 +--
 arch/microblaze/include/asm/dma-mapping.h          |   1 -
 arch/microblaze/kernel/dma.c                       |  12 +-
 arch/mips/cavium-octeon/dma-octeon.c               |   8 +-
 arch/mips/loongson64/common/dma-swiotlb.c          |  10 +-
 arch/mips/mm/dma-default.c                         |  20 ++--
 arch/mips/netlogic/common/nlm-dma.c                |   4 +-
 arch/mn10300/mm/dma-alloc.c                        |   8 +-
 arch/nios2/mm/dma-mapping.c                        |  12 +-
 arch/openrisc/kernel/dma.c                         |  21 ++--
 arch/parisc/kernel/pci-dma.c                       |  18 +--
 arch/powerpc/include/asm/dma-mapping.h             |   7 +-
 arch/powerpc/include/asm/iommu.h                   |  10 +-
 arch/powerpc/kernel/dma-iommu.c                    |  12 +-
 arch/powerpc/kernel/dma.c                          |  18 +--
 arch/powerpc/kernel/ibmebus.c                      |  12 +-
 arch/powerpc/kernel/iommu.c                        |  12 +-
 arch/powerpc/kernel/vio.c                          |  12 +-
 arch/powerpc/platforms/cell/iommu.c                |  28 ++---
 arch/powerpc/platforms/pasemi/iommu.c              |   2 +-
 arch/powerpc/platforms/powernv/npu-dma.c           |   8 +-
 arch/powerpc/platforms/powernv/pci-ioda.c          |   4 +-
 arch/powerpc/platforms/powernv/pci.c               |   2 +-
 arch/powerpc/platforms/powernv/pci.h               |   2 +-
 arch/powerpc/platforms/ps3/system-bus.c            |  18 +--
 arch/powerpc/platforms/pseries/iommu.c             |   6 +-
 arch/powerpc/sysdev/dart_iommu.c                   |   2 +-
 arch/s390/include/asm/dma-mapping.h                |   1 -
 arch/s390/pci/pci_dma.c                            |  23 ++--
 arch/sh/include/asm/dma-mapping.h                  |   4 +-
 arch/sh/kernel/dma-nommu.c                         |   4 +-
 arch/sh/mm/consistent.c                            |   4 +-
 arch/sparc/kernel/iommu.c                          |  12 +-
 arch/sparc/kernel/ioport.c                         |  24 ++--
 arch/sparc/kernel/pci_sun4v.c                      |  12 +-
 arch/tile/kernel/pci-dma.c                         |  28 ++---
 arch/unicore32/mm/dma-swiotlb.c                    |   4 +-
 arch/x86/include/asm/dma-mapping.h                 |   5 +-
 arch/x86/include/asm/swiotlb.h                     |   4 +-
 arch/x86/include/asm/xen/page-coherent.h           |   9 +-
 arch/x86/kernel/amd_gart_64.c                      |  20 ++--
 arch/x86/kernel/pci-calgary_64.c                   |  14 +--
 arch/x86/kernel/pci-dma.c                          |   4 +-
 arch/x86/kernel/pci-nommu.c                        |   4 +-
 arch/x86/kernel/pci-swiotlb.c                      |   4 +-
 arch/x86/pci/sta2x11-fixup.c                       |   2 +-
 arch/x86/pci/vmd.c                                 |  16 +--
 arch/xtensa/kernel/pci-dma.c                       |  12 +-
 drivers/gpu/drm/exynos/exynos_drm_fbdev.c          |   2 +-
 drivers/gpu/drm/exynos/exynos_drm_g2d.c            |  12 +-
 drivers/gpu/drm/exynos/exynos_drm_gem.c            |  20 ++--
 drivers/gpu/drm/exynos/exynos_drm_gem.h            |   2 +-
 drivers/gpu/drm/mediatek/mtk_drm_gem.c             |  13 +--
 drivers/gpu/drm/mediatek/mtk_drm_gem.h             |   2 +-
 drivers/gpu/drm/msm/msm_drv.c                      |  13 +--
 .../gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c    |  13 +--
 drivers/gpu/drm/rockchip/rockchip_drm_gem.c        |  17 ++-
 drivers/gpu/drm/rockchip/rockchip_drm_gem.h        |   2 +-
 drivers/infiniband/core/umem.c                     |   7 +-
 drivers/iommu/amd_iommu.c                          |  12 +-
 drivers/iommu/dma-iommu.c                          |   8 +-
 drivers/iommu/intel-iommu.c                        |  12 +-
 .../media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c |   4 -
 drivers/media/platform/sti/bdisp/bdisp-hw.c        |  26 ++---
 drivers/media/v4l2-core/videobuf2-dma-contig.c     |  28 ++---
 drivers/media/v4l2-core/videobuf2-dma-sg.c         |  21 +---
 drivers/media/v4l2-core/videobuf2-vmalloc.c        |   2 +-
 drivers/misc/mic/host/mic_boot.c                   |  20 ++--
 drivers/parisc/ccio-dma.c                          |  16 +--
 drivers/parisc/sba_iommu.c                         |  16 +--
 drivers/remoteproc/qcom_q6v5_pil.c                 |   7 +-
 drivers/video/fbdev/omap2/omapfb/omapfb-main.c     |  12 +-
 drivers/video/fbdev/omap2/omapfb/omapfb.h          |   3 +-
 drivers/xen/swiotlb-xen.c                          |  14 +--
 include/linux/dma-attrs.h                          |  71 ------------
 include/linux/dma-iommu.h                          |   6 +-
 include/linux/dma-mapping.h                        | 128 ++++++++++++++-------
 include/linux/swiotlb.h                            |  10 +-
 include/media/videobuf2-core.h                     |   6 +-
 include/media/videobuf2-dma-contig.h               |   2 -
 include/rdma/ib_verbs.h                            |   8 +-
 include/xen/swiotlb-xen.h                          |  12 +-
 lib/dma-noop.c                                     |   9 +-
 lib/swiotlb.c                                      |  13 ++-
 112 files changed, 694 insertions(+), 798 deletions(-)
 delete mode 100644 include/linux/dma-attrs.h

-- 
1.9.1


From - Thu Nov 08 21:39:05 2018
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Path: news.gmane.org!not-for-mail
From: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.kernel.arc,gmane.linux.ports.arm.rockchip,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.ppc64.devel
Subject: [PATCH v6 45/46] dma-mapping: Remove dma_get_attr
Date: Wed, 13 Jul 2016 10:41:36 +0200
Lines: 543
Approved: news@gmane.org
Message-ID: <1468399300-5399-45-git-send-email-k.kozlowski@samsung.com>
References: <1468399167-28083-1-git-send-email-k.kozlowski@samsung.com>
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Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org, Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
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	Jonathan Corbet <corbet-T1hC0tSOHrs@public.gmane.org>, Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>,
	Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>, Russell King <linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org>,
	iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
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	Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>, xen-devel@lists.
To: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/14491>

After switching DMA attributes to unsigned long it is easier to just
compare the bits.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
[for avr32]
Acked-by: Hans-Christian Noren Egtvedt <egtvedt-BrfabpQBY5qlHtIdYg32fQ@public.gmane.org>
[for arc]
Acked-by: Vineet Gupta <vgupta-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
[for arm64 and dma-iommu]
Acked-by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
---
 Documentation/DMA-API.txt                      |  4 +--
 arch/arc/mm/dma.c                              |  4 +--
 arch/arm/mm/dma-mapping.c                      | 36 ++++++++++++--------------
 arch/arm/xen/mm.c                              |  4 +--
 arch/arm64/mm/dma-mapping.c                    | 10 +++----
 arch/avr32/mm/dma-coherent.c                   |  4 +--
 arch/ia64/sn/pci/pci_dma.c                     | 10 ++-----
 arch/metag/kernel/dma.c                        |  2 +-
 arch/mips/mm/dma-default.c                     |  6 ++---
 arch/openrisc/kernel/dma.c                     |  4 +--
 arch/parisc/kernel/pci-dma.c                   |  2 +-
 arch/powerpc/platforms/cell/iommu.c            | 12 ++++-----
 drivers/gpu/drm/rockchip/rockchip_drm_gem.c    |  2 +-
 drivers/iommu/dma-iommu.c                      |  2 +-
 drivers/media/v4l2-core/videobuf2-dma-contig.c |  2 +-
 include/linux/dma-mapping.h                    | 10 -------
 16 files changed, 47 insertions(+), 67 deletions(-)

diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 24f9688bb98a..1d26eeb6b5f6 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -422,9 +422,7 @@ void whizco_dma_map_sg_attrs(struct device *dev, dma_addr_t dma_addr,
 			     unsigned long attrs)
 {
 	....
-	int foo =  dma_get_attr(DMA_ATTR_FOO, attrs);
-	....
-	if (foo)
+	if (attrs & DMA_ATTR_FOO)
 		/* twizzle the frobnozzle */
 	....
 
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 3d1f467d1792..74bbe68dce9d 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -46,7 +46,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
 	 *   (vs. always going to memory - thus are faster)
 	 */
 	if ((is_isa_arcv2() && ioc_exists) ||
-	    dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+	    (attrs & DMA_ATTR_NON_CONSISTENT))
 		need_coh = 0;
 
 	/*
@@ -95,7 +95,7 @@ static void arc_dma_free(struct device *dev, size_t size, void *vaddr,
 	struct page *page = virt_to_page(dma_handle);
 	int is_non_coh = 1;
 
-	is_non_coh = dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs) ||
+	is_non_coh = (attrs & DMA_ATTR_NON_CONSISTENT) ||
 			(is_isa_arcv2() && ioc_exists);
 
 	if (PageHighMem(page) || !is_non_coh)
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index ebb3fde99043..43e03b5293d0 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -126,7 +126,7 @@ static dma_addr_t arm_dma_map_page(struct device *dev, struct page *page,
 	     unsigned long offset, size_t size, enum dma_data_direction dir,
 	     unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__dma_page_cpu_to_dev(page, offset, size, dir);
 	return pfn_to_dma(dev, page_to_pfn(page)) + offset;
 }
@@ -155,7 +155,7 @@ static dma_addr_t arm_coherent_dma_map_page(struct device *dev, struct page *pag
 static void arm_dma_unmap_page(struct device *dev, dma_addr_t handle,
 		size_t size, enum dma_data_direction dir, unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__dma_page_dev_to_cpu(pfn_to_page(dma_to_pfn(dev, handle)),
 				      handle & ~PAGE_MASK, size, dir);
 }
@@ -622,9 +622,9 @@ static void __free_from_contiguous(struct device *dev, struct page *page,
 
 static inline pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot)
 {
-	prot = dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs) ?
-			    pgprot_writecombine(prot) :
-			    pgprot_dmacoherent(prot);
+	prot = (attrs & DMA_ATTR_WRITE_COMBINE) ?
+			pgprot_writecombine(prot) :
+			pgprot_dmacoherent(prot);
 	return prot;
 }
 
@@ -744,7 +744,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 		.gfp = gfp,
 		.prot = prot,
 		.caller = caller,
-		.want_vaddr = !dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs),
+		.want_vaddr = ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0),
 	};
 
 #ifdef CONFIG_DMA_API_DEBUG
@@ -887,7 +887,7 @@ static void __arm_dma_free(struct device *dev, size_t size, void *cpu_addr,
 		.size = PAGE_ALIGN(size),
 		.cpu_addr = cpu_addr,
 		.page = page,
-		.want_vaddr = !dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs),
+		.want_vaddr = ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0),
 	};
 
 	buf = arm_dma_buffer_find(cpu_addr);
@@ -1267,7 +1267,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size,
 	if (!pages)
 		return NULL;
 
-	if (dma_get_attr(DMA_ATTR_FORCE_CONTIGUOUS, attrs))
+	if (attrs & DMA_ATTR_FORCE_CONTIGUOUS)
 	{
 		unsigned long order = get_order(size);
 		struct page *page;
@@ -1285,7 +1285,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size,
 	}
 
 	/* Go straight to 4K chunks if caller says it's OK. */
-	if (dma_get_attr(DMA_ATTR_ALLOC_SINGLE_PAGES, attrs))
+	if (attrs & DMA_ATTR_ALLOC_SINGLE_PAGES)
 		order_idx = ARRAY_SIZE(iommu_order_array) - 1;
 
 	/*
@@ -1346,7 +1346,7 @@ static int __iommu_free_buffer(struct device *dev, struct page **pages,
 	int count = size >> PAGE_SHIFT;
 	int i;
 
-	if (dma_get_attr(DMA_ATTR_FORCE_CONTIGUOUS, attrs)) {
+	if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
 		dma_release_from_contiguous(dev, pages[0], count);
 	} else {
 		for (i = 0; i < count; i++)
@@ -1445,7 +1445,7 @@ static struct page **__iommu_get_pages(void *cpu_addr, unsigned long attrs)
 	if (__in_atomic_pool(cpu_addr, PAGE_SIZE))
 		return __atomic_get_pages(cpu_addr);
 
-	if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs))
+	if (attrs & DMA_ATTR_NO_KERNEL_MAPPING)
 		return cpu_addr;
 
 	area = find_vm_area(cpu_addr);
@@ -1512,7 +1512,7 @@ static void *arm_iommu_alloc_attrs(struct device *dev, size_t size,
 	if (*handle == DMA_ERROR_CODE)
 		goto err_buffer;
 
-	if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs))
+	if (attrs & DMA_ATTR_NO_KERNEL_MAPPING)
 		return pages;
 
 	addr = __iommu_alloc_remap(pages, size, gfp, prot,
@@ -1583,7 +1583,7 @@ void arm_iommu_free_attrs(struct device *dev, size_t size, void *cpu_addr,
 		return;
 	}
 
-	if (!dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs)) {
+	if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0) {
 		dma_common_free_remap(cpu_addr, size,
 			VM_ARM_DMA_CONSISTENT | VM_USERMAP);
 	}
@@ -1653,8 +1653,7 @@ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg,
 		phys_addr_t phys = page_to_phys(sg_page(s));
 		unsigned int len = PAGE_ALIGN(s->offset + s->length);
 
-		if (!is_coherent &&
-			!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+		if (!is_coherent && (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 			__dma_page_cpu_to_dev(sg_page(s), s->offset, s->length, dir);
 
 		prot = __dma_direction_to_prot(dir);
@@ -1767,8 +1766,7 @@ static void __iommu_unmap_sg(struct device *dev, struct scatterlist *sg,
 		if (sg_dma_len(s))
 			__iommu_remove_mapping(dev, sg_dma_address(s),
 					       sg_dma_len(s));
-		if (!is_coherent &&
-		    !dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+		if (!is_coherent && (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 			__dma_page_dev_to_cpu(sg_page(s), s->offset,
 					      s->length, dir);
 	}
@@ -1892,7 +1890,7 @@ static dma_addr_t arm_iommu_map_page(struct device *dev, struct page *page,
 	     unsigned long offset, size_t size, enum dma_data_direction dir,
 	     unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__dma_page_cpu_to_dev(page, offset, size, dir);
 
 	return arm_coherent_iommu_map_page(dev, page, offset, size, dir, attrs);
@@ -1943,7 +1941,7 @@ static void arm_iommu_unmap_page(struct device *dev, dma_addr_t handle,
 	if (!iova)
 		return;
 
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__dma_page_dev_to_cpu(page, offset, size, dir);
 
 	iommu_unmap(mapping->domain, iova, len);
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index fc67ed236a10..d062f08f5020 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -102,7 +102,7 @@ void __xen_dma_map_page(struct device *hwdev, struct page *page,
 {
 	if (is_device_dma_coherent(hwdev))
 		return;
-	if (dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
 		return;
 
 	__xen_dma_page_cpu_to_dev(hwdev, dev_addr, size, dir);
@@ -115,7 +115,7 @@ void __xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
 {
 	if (is_device_dma_coherent(hwdev))
 		return;
-	if (dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
 		return;
 
 	__xen_dma_page_dev_to_cpu(hwdev, handle, size, dir);
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index a284fd0d0b00..c4284c432ae8 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -35,7 +35,7 @@ static int swiotlb __read_mostly;
 static pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot,
 				 bool coherent)
 {
-	if (!coherent || dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+	if (!coherent || (attrs & DMA_ATTR_WRITE_COMBINE))
 		return pgprot_writecombine(prot);
 	return prot;
 }
@@ -714,7 +714,7 @@ static dma_addr_t __iommu_map_page(struct device *dev, struct page *page,
 	dma_addr_t dev_addr = iommu_dma_map_page(dev, page, offset, size, prot);
 
 	if (!iommu_dma_mapping_error(dev, dev_addr) &&
-	    !dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	    (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__iommu_sync_single_for_device(dev, dev_addr, size, dir);
 
 	return dev_addr;
@@ -724,7 +724,7 @@ static void __iommu_unmap_page(struct device *dev, dma_addr_t dev_addr,
 			       size_t size, enum dma_data_direction dir,
 			       unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__iommu_sync_single_for_cpu(dev, dev_addr, size, dir);
 
 	iommu_dma_unmap_page(dev, dev_addr, size, dir, attrs);
@@ -764,7 +764,7 @@ static int __iommu_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
 {
 	bool coherent = is_device_dma_coherent(dev);
 
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__iommu_sync_sg_for_device(dev, sgl, nelems, dir);
 
 	return iommu_dma_map_sg(dev, sgl, nelems,
@@ -776,7 +776,7 @@ static void __iommu_unmap_sg_attrs(struct device *dev,
 				   enum dma_data_direction dir,
 				   unsigned long attrs)
 {
-	if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+	if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
 		__iommu_sync_sg_for_cpu(dev, sgl, nelems, dir);
 
 	iommu_dma_unmap_sg(dev, sgl, nelems, dir, attrs);
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
index fc51f4421933..58610d0df7ed 100644
--- a/arch/avr32/mm/dma-coherent.c
+++ b/arch/avr32/mm/dma-coherent.c
@@ -109,7 +109,7 @@ static void *avr32_dma_alloc(struct device *dev, size_t size,
 		return NULL;
 	phys = page_to_phys(page);
 
-	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs)) {
+	if (attrs & DMA_ATTR_WRITE_COMBINE) {
 		/* Now, map the page into P3 with write-combining turned on */
 		*handle = phys;
 		return __ioremap(phys, size, _PAGE_BUFFER);
@@ -123,7 +123,7 @@ static void avr32_dma_free(struct device *dev, size_t size,
 {
 	struct page *page;
 
-	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs)) {
+	if (attrs & DMA_ATTR_WRITE_COMBINE) {
 		iounmap(cpu_addr);
 
 		page = phys_to_page(handle);
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index 6b78fc953c4b..74c934a997bb 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -183,14 +183,11 @@ static dma_addr_t sn_dma_map_page(struct device *dev, struct page *page,
 	unsigned long phys_addr;
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
-	int dmabarr;
-
-	dmabarr = dma_get_attr(DMA_ATTR_WRITE_BARRIER, attrs);
 
 	BUG_ON(!dev_is_pci(dev));
 
 	phys_addr = __pa(cpu_addr);
-	if (dmabarr)
+	if (attrs & DMA_ATTR_WRITE_BARRIER)
 		dma_addr = provider->dma_map_consistent(pdev, phys_addr,
 							size, SN_DMA_ADDR_PHYS);
 	else
@@ -280,9 +277,6 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
 	int i;
-	int dmabarr;
-
-	dmabarr = dma_get_attr(DMA_ATTR_WRITE_BARRIER, attrs);
 
 	BUG_ON(!dev_is_pci(dev));
 
@@ -292,7 +286,7 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
 	for_each_sg(sgl, sg, nhwentries, i) {
 		dma_addr_t dma_addr;
 		phys_addr = SG_ENT_PHYS_ADDRESS(sg);
-		if (dmabarr)
+		if (attrs & DMA_ATTR_WRITE_BARRIER)
 			dma_addr = provider->dma_map_consistent(pdev,
 								phys_addr,
 								sg->length,
diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index d68f498e82a1..0db31e24c541 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -337,7 +337,7 @@ static int metag_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 	struct metag_vm_region *c;
 	int ret = -ENXIO;
 
-	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+	if (attrs & DMA_ATTR_WRITE_COMBINE)
 		vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 	else
 		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 0ed9000dc1ff..b2eadd6fa9a1 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -141,7 +141,7 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
 	 * XXX: seems like the coherent and non-coherent implementations could
 	 * be consolidated.
 	 */
-	if (dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+	if (attrs & DMA_ATTR_NON_CONSISTENT)
 		return mips_dma_alloc_noncoherent(dev, size, dma_handle, gfp);
 
 	gfp = massage_gfp_flags(dev, gfp);
@@ -182,7 +182,7 @@ static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	struct page *page = NULL;
 
-	if (dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) {
+	if (attrs & DMA_ATTR_NON_CONSISTENT) {
 		mips_dma_free_noncoherent(dev, size, vaddr, dma_handle);
 		return;
 	}
@@ -214,7 +214,7 @@ static int mips_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 
 	pfn = page_to_pfn(virt_to_page((void *)addr));
 
-	if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+	if (attrs & DMA_ATTR_WRITE_COMBINE)
 		vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 	else
 		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index 50eb1f26c540..140c99140649 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -100,7 +100,7 @@ or1k_dma_alloc(struct device *dev, size_t size,
 
 	va = (unsigned long)page;
 
-	if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) {
+	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0) {
 		/*
 		 * We need to iterate through the pages, clearing the dcache for
 		 * them and setting the cache-inhibit bit.
@@ -124,7 +124,7 @@ or1k_dma_free(struct device *dev, size_t size, void *vaddr,
 		.mm = &init_mm
 	};
 
-	if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) {
+	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0) {
 		/* walk_page_range shouldn't be able to fail here */
 		WARN_ON(walk_page_range(va, va + size, &walk));
 	}
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 845fdd52e4c5..02d9ed0f3949 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -581,7 +581,7 @@ static void *pcx_dma_alloc(struct device *dev, size_t size,
 {
 	void *addr;
 
-	if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0)
 		return NULL;
 
 	addr = (void *)__get_free_pages(flag, get_order(size));
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 9a195f1893af..f7d1a4953ea0 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -193,7 +193,7 @@ static int tce_build_cell(struct iommu_table *tbl, long index, long npages,
 	base_pte = CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_M |
 		CBE_IOPTE_SO_RW | (window->ioid & CBE_IOPTE_IOID_Mask);
 #endif
-	if (unlikely(dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs)))
+	if (unlikely(attrs & DMA_ATTR_WEAK_ORDERING))
 		base_pte &= ~CBE_IOPTE_SO_RW;
 
 	io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset);
@@ -600,7 +600,7 @@ static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page,
 				     enum dma_data_direction direction,
 				     unsigned long attrs)
 {
-	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
 		return dma_direct_ops.map_page(dev, page, offset, size,
 					       direction, attrs);
 	else
@@ -613,7 +613,7 @@ static void dma_fixed_unmap_page(struct device *dev, dma_addr_t dma_addr,
 				 size_t size, enum dma_data_direction direction,
 				 unsigned long attrs)
 {
-	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
 		dma_direct_ops.unmap_page(dev, dma_addr, size, direction,
 					  attrs);
 	else
@@ -625,7 +625,7 @@ static int dma_fixed_map_sg(struct device *dev, struct scatterlist *sg,
 			   int nents, enum dma_data_direction direction,
 			   unsigned long attrs)
 {
-	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
 		return dma_direct_ops.map_sg(dev, sg, nents, direction, attrs);
 	else
 		return ppc_iommu_map_sg(dev, cell_get_iommu_table(dev), sg,
@@ -637,7 +637,7 @@ static void dma_fixed_unmap_sg(struct device *dev, struct scatterlist *sg,
 			       int nents, enum dma_data_direction direction,
 			       unsigned long attrs)
 {
-	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
 		dma_direct_ops.unmap_sg(dev, sg, nents, direction, attrs);
 	else
 		ppc_iommu_unmap_sg(cell_get_iommu_table(dev), sg, nents,
@@ -1162,7 +1162,7 @@ static int __init setup_iommu_fixed(char *str)
 	pciep = of_find_node_by_type(NULL, "pcie-endpoint");
 
 	if (strcmp(str, "weak") == 0 || (pciep && strcmp(str, "strong") != 0))
-		iommu_fixed_is_weak = 1;
+		iommu_fixed_is_weak = DMA_ATTR_WEAK_ORDERING;
 
 	of_node_put(pciep);
 
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
index 28b2a828c650..b70f9423379c 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
@@ -273,7 +273,7 @@ void *rockchip_gem_prime_vmap(struct drm_gem_object *obj)
 {
 	struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj);
 
-	if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, rk_obj->dma_attrs))
+	if (rk_obj->dma_attrs & DMA_ATTR_NO_KERNEL_MAPPING)
 		return NULL;
 
 	return rk_obj->kvaddr;
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 6c1bda504fb1..08a1e2f3690f 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -306,7 +306,7 @@ struct page **iommu_dma_alloc(struct device *dev, size_t size, gfp_t gfp,
 	} else {
 		size = ALIGN(size, min_size);
 	}
-	if (dma_get_attr(DMA_ATTR_ALLOC_SINGLE_PAGES, attrs))
+	if (attrs & DMA_ATTR_ALLOC_SINGLE_PAGES)
 		alloc_sizes = min_size;
 
 	count = PAGE_ALIGN(size) >> PAGE_SHIFT;
diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c
index 1ec4434a86bb..b09b2c9b6b63 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-contig.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c
@@ -155,7 +155,7 @@ static void *vb2_dc_alloc(struct device *dev, unsigned long attrs,
 		return ERR_PTR(-ENOMEM);
 	}
 
-	if (!dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, buf->attrs))
+	if ((buf->attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0)
 		buf->vaddr = buf->cookie;
 
 	/* Prevent the device from being released while the buffer is used */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 1fd9860487b1..d8fb67783cb7 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -101,16 +101,6 @@ static inline int is_device_dma_capable(struct device *dev)
 	return dev->dma_mask != NULL && *dev->dma_mask != DMA_MASK_NONE;
 }
 
-/**
- * dma_get_attr - check for a specific attribute
- * @attr: attribute to look for
- * @attrs: attributes to check within
- */
-static inline bool dma_get_attr(unsigned long attr, unsigned long attrs)
-{
-	return !!(attr & attrs);
-}
-
 #ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
 /*
  * These three functions are only for dma allocator.
-- 
1.9.1


From - Thu Nov 08 21:39:05 2018
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From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH v6 36/46] parisc: dma-mapping: Use unsigned long for dma_attrs
Date: Wed, 13 Jul 2016 10:41:27 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:26927 gmane.linux.kernel:2264949
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Split out subsystem specific changes for easier reviews. This will be
squashed with main commit.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 arch/parisc/kernel/pci-dma.c | 16 ++++++++--------
 drivers/parisc/ccio-dma.c    | 16 ++++++++--------
 drivers/parisc/sba_iommu.c   | 16 ++++++++--------
 3 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index a27e4928bf73..845fdd52e4c5 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -414,7 +414,7 @@ pcxl_dma_init(void)
 __initcall(pcxl_dma_init);
 
 static void *pa11_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
+		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
 {
 	unsigned long vaddr;
 	unsigned long paddr;
@@ -441,7 +441,7 @@ static void *pa11_dma_alloc(struct device *dev, size_t size,
 }
 
 static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t dma_handle, struct dma_attrs *attrs)
+		dma_addr_t dma_handle, unsigned long attrs)
 {
 	int order;
 
@@ -454,7 +454,7 @@ static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
 
 static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
 		unsigned long offset, size_t size,
-		enum dma_data_direction direction, struct dma_attrs *attrs)
+		enum dma_data_direction direction, unsigned long attrs)
 {
 	void *addr = page_address(page) + offset;
 	BUG_ON(direction == DMA_NONE);
@@ -465,7 +465,7 @@ static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
 
 static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 		size_t size, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	BUG_ON(direction == DMA_NONE);
 
@@ -484,7 +484,7 @@ static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 
 static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
 		int nents, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -503,7 +503,7 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
 
 static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 		int nents, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -577,7 +577,7 @@ struct dma_map_ops pcxl_dma_ops = {
 };
 
 static void *pcx_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
+		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
 {
 	void *addr;
 
@@ -592,7 +592,7 @@ static void *pcx_dma_alloc(struct device *dev, size_t size,
 }
 
 static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t iova, struct dma_attrs *attrs)
+		dma_addr_t iova, unsigned long attrs)
 {
 	free_pages((unsigned long)vaddr, get_order(size));
 	return;
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index e24b05996a1b..3ed6238f8f6e 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -790,7 +790,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
 static dma_addr_t
 ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
 		size_t size, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	return ccio_map_single(dev, page_address(page) + offset, size,
 			direction);
@@ -806,7 +806,7 @@ ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
  */
 static void 
 ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
-		enum dma_data_direction direction, struct dma_attrs *attrs)
+		enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 	unsigned long flags; 
@@ -844,7 +844,7 @@ ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
  */
 static void * 
 ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
       void *ret;
 #if 0
@@ -878,9 +878,9 @@ ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
  */
 static void 
 ccio_free(struct device *dev, size_t size, void *cpu_addr,
-		dma_addr_t dma_handle, struct dma_attrs *attrs)
+		dma_addr_t dma_handle, unsigned long attrs)
 {
-	ccio_unmap_page(dev, dma_handle, size, 0, NULL);
+	ccio_unmap_page(dev, dma_handle, size, 0, 0);
 	free_pages((unsigned long)cpu_addr, get_order(size));
 }
 
@@ -907,7 +907,7 @@ ccio_free(struct device *dev, size_t size, void *cpu_addr,
  */
 static int
 ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents, 
-	    enum dma_data_direction direction, struct dma_attrs *attrs)
+	    enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 	int coalesced, filled = 0;
@@ -984,7 +984,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
  */
 static void 
 ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, 
-	      enum dma_data_direction direction, struct dma_attrs *attrs)
+	      enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 
@@ -1004,7 +1004,7 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 		ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
 #endif
 		ccio_unmap_page(dev, sg_dma_address(sglist),
-				  sg_dma_len(sglist), direction, NULL);
+				  sg_dma_len(sglist), direction, 0);
 		++sglist;
 	}
 
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 42ec4600b7e4..151b86b6d2e2 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -783,7 +783,7 @@ sba_map_single(struct device *dev, void *addr, size_t size,
 static dma_addr_t
 sba_map_page(struct device *dev, struct page *page, unsigned long offset,
 		size_t size, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+		unsigned long attrs)
 {
 	return sba_map_single(dev, page_address(page) + offset, size,
 			direction);
@@ -801,7 +801,7 @@ sba_map_page(struct device *dev, struct page *page, unsigned long offset,
  */
 static void
 sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
-		enum dma_data_direction direction, struct dma_attrs *attrs)
+		enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 #if DELAYED_RESOURCE_CNT > 0
@@ -876,7 +876,7 @@ sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
  * See Documentation/DMA-API-HOWTO.txt
  */
 static void *sba_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle,
-		gfp_t gfp, struct dma_attrs *attrs)
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -908,9 +908,9 @@ static void *sba_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle
  */
 static void
 sba_free(struct device *hwdev, size_t size, void *vaddr,
-		    dma_addr_t dma_handle, struct dma_attrs *attrs)
+		    dma_addr_t dma_handle, unsigned long attrs)
 {
-	sba_unmap_page(hwdev, dma_handle, size, 0, NULL);
+	sba_unmap_page(hwdev, dma_handle, size, 0, 0);
 	free_pages((unsigned long) vaddr, get_order(size));
 }
 
@@ -943,7 +943,7 @@ int dump_run_sg = 0;
  */
 static int
 sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	   enum dma_data_direction direction, struct dma_attrs *attrs)
+	   enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 	int coalesced, filled = 0;
@@ -1026,7 +1026,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
  */
 static void 
 sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	     enum dma_data_direction direction, struct dma_attrs *attrs)
+	     enum dma_data_direction direction, unsigned long attrs)
 {
 	struct ioc *ioc;
 #ifdef ASSERT_PDIR_SANITY
@@ -1051,7 +1051,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	while (sg_dma_len(sglist) && nents--) {
 
 		sba_unmap_page(dev, sg_dma_address(sglist), sg_dma_len(sglist),
-				direction, NULL);
+				direction, 0);
 #ifdef SBA_COLLECT_STATS
 		ioc->usg_pages += ((sg_dma_address(sglist) & ~IOVP_MASK) + sg_dma_len(sglist) + IOVP_SIZE - 1) >> PAGE_SHIFT;
 		ioc->usingle_calls--;	/* kluge since call is unmap_sg() */
-- 
1.9.1

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The pdc_pat_io_pci_cfg_read() is problematic because it's missing some
break statements so it copies 4 bytes regardless of whether you asked
for only 1 or 2.  But since neither this nor the write function are
used, it means we can just delete the code.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/arch/parisc/include/asm/pdcpat.h b/arch/parisc/include/asm/pdcpat.h
index 47539f1..c89d8c0 100644
--- a/arch/parisc/include/asm/pdcpat.h
+++ b/arch/parisc/include/asm/pdcpat.h
@@ -293,11 +293,6 @@ extern int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, void *hpa);
 
 extern int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr, unsigned long count, unsigned long offset);
 
-
-extern int pdc_pat_io_pci_cfg_read(unsigned long pci_addr, int pci_size, u32 *val); 
-extern int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val); 
-
-
 /* Flag to indicate this is a PAT box...don't use this unless you
 ** really have to...it might go away some day.
 */
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 2239590..12545a2 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1338,51 +1338,6 @@ int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr,
 	return retval;
 }
 
-/**
- * pdc_pat_io_pci_cfg_read - Read PCI configuration space.
- * @pci_addr: PCI configuration space address for which the read request is being made.
- * @pci_size: Size of read in bytes. Valid values are 1, 2, and 4. 
- * @mem_addr: Pointer to return memory buffer.
- *
- */
-int pdc_pat_io_pci_cfg_read(unsigned long pci_addr, int pci_size, u32 *mem_addr)
-{
-	int retval;
-	unsigned long flags;
-
-	spin_lock_irqsave(&pdc_lock, flags);
-	retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_PCI_CONFIG_READ,
-					__pa(pdc_result), pci_addr, pci_size);
-	switch(pci_size) {
-		case 1: *(u8 *) mem_addr =  (u8)  pdc_result[0];
-		case 2: *(u16 *)mem_addr =  (u16) pdc_result[0];
-		case 4: *(u32 *)mem_addr =  (u32) pdc_result[0];
-	}
-	spin_unlock_irqrestore(&pdc_lock, flags);
-
-	return retval;
-}
-
-/**
- * pdc_pat_io_pci_cfg_write - Retrieve information about memory address ranges.
- * @pci_addr: PCI configuration space address for which the write  request is being made.
- * @pci_size: Size of write in bytes. Valid values are 1, 2, and 4. 
- * @value: Pointer to 1, 2, or 4 byte value in low order end of argument to be 
- *         written to PCI Config space.
- *
- */
-int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val)
-{
-	int retval;
-	unsigned long flags;
-
-	spin_lock_irqsave(&pdc_lock, flags);
-	retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_PCI_CONFIG_WRITE,
-				pci_addr, pci_size, val);
-	spin_unlock_irqrestore(&pdc_lock, flags);

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From: Helge Deller <deller@gmx.de>
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Subject: Re: [patch] parisc: delete some unused functions from firmware.c
Date: Thu, 14 Jul 2016 23:16:10 +0200
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Hi Dan,

thanks for noticing that!

On 14.07.2016 12:47, Dan Carpenter wrote:
> The pdc_pat_io_pci_cfg_read() is problematic because it's missing some
> break statements so it copies 4 bytes regardless of whether you asked
> for only 1 or 2.  But since neither this nor the write function are
> used, it means we can just delete the code.

I would actually prefer if the code is fixed (e.g. with breaks)
and kept in the tree. We don't know yet if we will need it (and if we do
one would at least see that this PDC function actually exists).

Do you think you can send a fix-up patch instead?

Thanks,
Helge
 
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> 
> diff --git a/arch/parisc/include/asm/pdcpat.h b/arch/parisc/include/asm/pdcpat.h
> index 47539f1..c89d8c0 100644
> --- a/arch/parisc/include/asm/pdcpat.h
> +++ b/arch/parisc/include/asm/pdcpat.h
> @@ -293,11 +293,6 @@ extern int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, void *hpa);
>  
>  extern int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr, unsigned long count, unsigned long offset);
>  
> -
> -extern int pdc_pat_io_pci_cfg_read(unsigned long pci_addr, int pci_size, u32 *val); 
> -extern int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val); 
> -
> -
>  /* Flag to indicate this is a PAT box...don't use this unless you
>  ** really have to...it might go away some day.
>  */
> diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
> index 2239590..12545a2 100644
> --- a/arch/parisc/kernel/firmware.c
> +++ b/arch/parisc/kernel/firmware.c
> @@ -1338,51 +1338,6 @@ int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr,
>  	return retval;
>  }
>  
> -/**
> - * pdc_pat_io_pci_cfg_read - Read PCI configuration space.
> - * @pci_addr: PCI configuration space address for which the read request is being made.
> - * @pci_size: Size of read in bytes. Valid values are 1, 2, and 4. 
> - * @mem_addr: Pointer to return memory buffer.
> - *
> - */
> -int pdc_pat_io_pci_cfg_read(unsigned long pci_addr, int pci_size, u32 *mem_addr)
> -{
> -	int retval;
> -	unsigned long flags;
> -
> -	spin_lock_irqsave(&pdc_lock, flags);
> -	retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_PCI_CONFIG_READ,
> -					__pa(pdc_result), pci_addr, pci_size);
> -	switch(pci_size) {
> -		case 1: *(u8 *) mem_addr =  (u8)  pdc_result[0];
> -		case 2: *(u16 *)mem_addr =  (u16) pdc_result[0];
> -		case 4: *(u32 *)mem_addr =  (u32) pdc_result[0];
> -	}
> -	spin_unlock_irqrestore(&pdc_lock, flags);
> -
> -	return retval;
> -}
> -
> -/**
> - * pdc_pat_io_pci_cfg_write - Retrieve information about memory address ranges.
> - * @pci_addr: PCI configuration space address for which the write  request is being made.
> - * @pci_size: Size of write in bytes. Valid values are 1, 2, and 4. 
> - * @value: Pointer to 1, 2, or 4 byte value in low order end of argument to be 
> - *         written to PCI Config space.
> - *
> - */
> -int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val)
> -{
> -	int retval;
> -	unsigned long flags;
> -
> -	spin_lock_irqsave(&pdc_lock, flags);
> -	retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_PCI_CONFIG_WRITE,
> -				pci_addr, pci_size, val);
> -	spin_unlock_irqrestore(&pdc_lock, flags);
> -
> -	return retval;
> -}
>  #endif /* CONFIG_64BIT */
>  
>  
> 

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From - Thu Nov 08 21:39:06 2018
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Subject: [PATCH 12/14] parisc: migrate exception table users off module.h and onto extable.h
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This file was only including module.h for exception table related
functions.  We've now separated that content out into its own file
"extable.h" so now move over to that and avoid all the extra header
content in module.h that we don't really need to compile this file.

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 arch/parisc/mm/fault.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 163af2c31d76..a67519b79504 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -14,7 +14,7 @@
 #include <linux/ptrace.h>
 #include <linux/sched.h>
 #include <linux/interrupt.h>
-#include <linux/module.h>
+#include <linux/extable.h>
 #include <linux/uaccess.h>
 
 #include <asm/traps.h>
-- 
2.8.4



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[RFC: Not looking for detailed review given the merge window is open.
 As long as nobody thinks the general idea is horrible, I'll expand into
 more fringe arch and resend in 2wks and get it added then to linux-next.]

While doing an audit looking for unnecessary instances of module.h
inclusion across arch/x86/ I found a significant number of includes
of module.h were for things like search_exception_table and friends.

For historical reasons (i.e. pre-git) the exception table stuff was
buried in the middle of the module.h file.  So we have core kernel
files that are completely non-modular (both arch specific and arch
independent) that are just including module.h for this.

The converse is also true, in that conventional drivers, be they for
filesystems or actual hardware peripherals or similar, do not
normally care about the exception tables.

Here we fork the exception table content out of module.h into a new
extable.h file.  The gain here is that module.h gets a bit smaller;
a win for all modular drivers that we build for allmodconfig.  Also
most core files that only need exception table stuff get to shed an
include of module.h that brings in lots of extra stuff and just
looks generally out of place.  They use the tiny extable.h instead.

We temporarily include extable.h into the module.h itself.  Then we
will work our way across the arch independent and arch specific
files needing just exception table content, and move them off
module.h and onto extable.h

Once that is done, we can remove the extable.h from module.h and in
doing it like this, we avoid introducing build failures into the git
history.

We have the option of taking this final one line commit and pushing
it out a complete release if we want to open up a bigger window for
converting some of the more fringe archtectures.

I've converted about a dozen architectures here w/o issue; that
largely reflects what I currently have toolchains for.  Build
testing seems necessary in all instances, since the odds are high
that the module.h presence was hiding implicit use of other headers,
as was the case for s390.

Paul.
-- 

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: x86@kernel.org
Cc: sparclinux@vger.kernel.org

Paul Gortmaker (14):
  exceptions: fork exception table content from module.h into extable.h
  x86: migrate exception table users off module.h and onto extable.h
  arm: migrate exception table users off module.h and onto extable.h
  arm64: migrate exception table users off module.h and onto extable.h
  mips: migrate exception table users off module.h and onto extable.h
  sparc: migrate exception table users off module.h and onto extable.h
  powerpc: migrate exception table users off module.h and onto extable.h
  m68k: migrate exception table users off module.h and onto extable.h
  s390: migrate exception table users off module.h and onto extable.h
  tile: migrate exception table users off module.h and onto extable.h
  alpha: migrate exception table users off module.h and onto extable.h
  parisc: migrate exception table users off module.h and onto extable.h
  core: migrate exception table users off module.h and onto extable.h
  module.h: remove extable.h include now users have migrated

 arch/alpha/kernel/traps.c          |  2 +-
 arch/alpha/mm/fault.c              |  2 +-
 arch/arm/mm/extable.c              |  2 +-
 arch/arm/mm/fault.c                |  2 +-
 arch/arm64/kernel/probes/kprobes.c |  2 +-
 arch/arm64/mm/extable.c            |  2 +-
 arch/arm64/mm/fault.c              |  2 +-
 arch/m68k/kernel/signal.c          |  2 +-
 arch/mips/kernel/module.c          |  1 +
 arch/mips/kernel/traps.c           |  2 +-
 arch/mips/mm/extable.c             |  2 +-
 arch/parisc/mm/fault.c             |  2 +-
 arch/powerpc/kernel/kprobes.c      |  2 +-
 arch/powerpc/mm/fault.c            |  2 +-
 arch/s390/kernel/early.c           |  2 +-
 arch/s390/kernel/kprobes.c         |  2 ++
 arch/s390/kernel/traps.c           |  3 ++-
 arch/s390/mm/fault.c               |  2 +-
 arch/sparc/kernel/kprobes.c        |  2 +-
 arch/sparc/kernel/traps_64.c       |  2 +-
 arch/sparc/kernel/unaligned_64.c   |  2 +-
 arch/sparc/mm/fault_64.c           |  2 +-
 arch/sparc/mm/init_64.c            |  2 +-
 arch/tile/kernel/unaligned.c       |  2 +-
 arch/tile/mm/extable.c             |  2 +-
 arch/tile/mm/fault.c               |  2 +-
 arch/x86/kernel/kprobes/core.c     |  2 +-
 arch/x86/kernel/kprobes/opt.c      |  2 +-
 arch/x86/mm/extable.c              |  2 +-
 arch/x86/mm/fault.c                |  2 +-
 include/linux/extable.h            | 30 ++++++++++++++++++++++++++++++
 include/linux/module.h             | 26 +-------------------------
 init/main.c                        |  1 +
 kernel/extable.c                   |  1 +
 kernel/module.c                    |  1 +
 35 files changed, 66 insertions(+), 53 deletions(-)
 create mode 100644 include/linux/extable.h

-- 
2.8.4




From - Thu Nov 08 21:39:06 2018
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X-Mozilla-Keys:                                                                                 
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From: Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.m68k,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc
Subject: Re: [RFC/PATCH 00/14] split exception table content out of module.h
 into extable.h
Date: Sun, 24 Jul 2016 21:18:19 -0700
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Approved: news@gmane.org
Message-ID: <CA+55aFyDw_jK609LcjpWvVMTzCWuH6nLUXiZDeYC2tpSaZqhXA@mail.gmail.com>
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Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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	Chris Metcalf <cmetcalf@mellanox.com>,
	"David S. Miller" <davem@davemloft.net>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Helge Deller <deller@gmx.de>, "H. Peter Anvin" <hpa@zytor.com>,
	Ingo Molnar <mingo@redhat.com>,
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	Paul Mackerras <paulus@samba.org>,
	Ralf Baechle <ralf@linux-mips.org>,
	Richard Henderson <rth@twiddle.net>,
	Russell King <linux@armlinux.org.uk>,
	Rus
To: Paul Gortmaker <paul.gortmaker@windriver.com>
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On Sun, Jul 24, 2016 at 8:42 PM, Paul Gortmaker
<paul.gortmaker@windriver.com> wrote:
>
> While doing an audit looking for unnecessary instances of module.h
> inclusion across arch/x86/ I found a significant number of includes
> of module.h were for things like search_exception_table and friends.
>
> For historical reasons (i.e. pre-git) the exception table stuff was
> buried in the middle of the module.h file.  So we have core kernel
> files that are completely non-modular (both arch specific and arch
> independent) that are just including module.h for this.
>
> The converse is also true, in that conventional drivers, be they for
> filesystems or actual hardware peripherals or similar, do not
> normally care about the exception tables.
>
> Here we fork the exception table content [...]

This looks to be the right thing to do as far as I can tell. I'm not
sure how big of a problem the extable stuff is (we definitely have
much bigger unnecessary include files that cause a lot more problems),
but it seems like a reasonable cleanup.

              Linus
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From - Thu Nov 08 21:39:06 2018
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From: Colin King <colin.king@canonical.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel
Subject: [PATCH] net: tulip: fix spelling mistake: "attemping" -> "attempting"
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From: Colin Ian King <colin.king@canonical.com>

trivial fix to spelling mistake in printk message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/net/ethernet/dec/tulip/de4x5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index cbe8497..f0e9e2e 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -1319,7 +1319,7 @@ de4x5_open(struct net_device *dev)
 
     if (request_irq(dev->irq, de4x5_interrupt, IRQF_SHARED,
 		                                     lp->adapter_name, dev)) {
-	printk("de4x5_open(): Requested IRQ%d is busy - attemping FAST/SHARE...", dev->irq);
+	printk("de4x5_open(): Requested IRQ%d is busy - attempting FAST/SHARE...", dev->irq);
 	if (request_irq(dev->irq, de4x5_interrupt, IRQF_SHARED,
 			                             lp->adapter_name, dev)) {
 	    printk("\n              Cannot get IRQ- reconfigure your hardware.\n");
-- 
2.8.1

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From - Thu Nov 08 21:39:06 2018
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From: David Miller <davem@davemloft.net>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel
Subject: Re: [PATCH] net: tulip: fix spelling mistake: "attemping" ->
 "attempting"
Date: Sat, 30 Jul 2016 23:14:09 -0700 (PDT)
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From: Colin King <colin.king@canonical.com>
Date: Sat, 30 Jul 2016 17:47:07 +0100

> From: Colin Ian King <colin.king@canonical.com>
> 
> trivial fix to spelling mistake in printk message
> 
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Applied, thanks.
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From - Thu Nov 08 21:39:06 2018
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From: Baole Ni <baolex.ni@intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.alsa.devel,gmane.linux.kernel
Subject: [PATCH 1205/1285] Replace numeric parameter like 0444 with macro
Date: Tue,  2 Aug 2016 20:26:28 +0800
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I find that the developers often just specified the numeric value
when calling a macro which is defined with a parameter for access permission.
As we know, these numeric value for access permission have had the corresponding macro,
and that using macro can improve the robustness and readability of the code,
thus, I suggest replacing the numeric parameter with the macro.

Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Signed-off-by: Baole Ni <baolex.ni@intel.com>
---
 sound/pci/ad1889.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index 1fc6d8b..d27552f 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -58,19 +58,19 @@ MODULE_LICENSE("GPL");
 MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1889}}");
 
 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
-module_param_array(index, int, NULL, 0444);
+module_param_array(index, int, NULL, S_IRUSR | S_IRGRP | S_IROTH);
 MODULE_PARM_DESC(index, "Index value for the AD1889 soundcard.");
 
 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
-module_param_array(id, charp, NULL, 0444);
+module_param_array(id, charp, NULL, S_IRUSR | S_IRGRP | S_IROTH);
 MODULE_PARM_DESC(id, "ID string for the AD1889 soundcard.");
 
 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
-module_param_array(enable, bool, NULL, 0444);
+module_param_array(enable, bool, NULL, S_IRUSR | S_IRGRP | S_IROTH);
 MODULE_PARM_DESC(enable, "Enable AD1889 soundcard.");
 
 static char *ac97_quirk[SNDRV_CARDS];
-module_param_array(ac97_quirk, charp, NULL, 0444);
+module_param_array(ac97_quirk, charp, NULL, S_IRUSR | S_IRGRP | S_IROTH);
 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
 
 #define DEVNAME "ad1889"
-- 
2.9.2

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From - Thu Nov 08 21:39:06 2018
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From: Baole Ni <baolex.ni@intel.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 1203/1285] Replace numeric parameter like 0444 with macro
Date: Tue,  2 Aug 2016 20:26:17 +0800
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I find that the developers often just specified the numeric value
when calling a macro which is defined with a parameter for access permission.
As we know, these numeric value for access permission have had the corresponding macro,
and that using macro can improve the robustness and readability of the code,
thus, I suggest replacing the numeric parameter with the macro.

Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Signed-off-by: Baole Ni <baolex.ni@intel.com>
---
 sound/parisc/harmony.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/parisc/harmony.c b/sound/parisc/harmony.c
index 99b64cb..4531062 100644
--- a/sound/parisc/harmony.c
+++ b/sound/parisc/harmony.c
@@ -60,9 +60,9 @@
 
 static int index = SNDRV_DEFAULT_IDX1;	/* Index 0-MAX */
 static char *id = SNDRV_DEFAULT_STR1;	/* ID for this card */
-module_param(index, int, 0444);
+module_param(index, int, S_IRUSR | S_IRGRP | S_IROTH);
 MODULE_PARM_DESC(index, "Index value for Harmony driver.");
-module_param(id, charp, 0444);
+module_param(id, charp, S_IRUSR | S_IRGRP | S_IROTH);
 MODULE_PARM_DESC(id, "ID string for Harmony driver.");
 
 
-- 
2.9.2



From - Thu Nov 08 21:39:06 2018
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From: Baole Ni <baolex.ni@intel.com>
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Subject: [PATCH 0815/1285] Replace numeric parameter like 0444 with macro
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Xref: news.gmane.org gmane.linux.ports.parisc:26939 gmane.linux.kernel:2278278
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26939>

I find that the developers often just specified the numeric value
when calling a macro which is defined with a parameter for access permission.
As we know, these numeric value for access permission have had the corresponding macro,
and that using macro can improve the robustness and readability of the code,
thus, I suggest replacing the numeric parameter with the macro.

Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Signed-off-by: Baole Ni <baolex.ni@intel.com>
---
 drivers/parisc/sba_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 42ec460..416fa51 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -113,7 +113,7 @@ static unsigned long piranha_bad_128k = 0;
 
 #ifdef SBA_AGP_SUPPORT
 static int sba_reserve_agpgart = 1;
-module_param(sba_reserve_agpgart, int, 0444);
+module_param(sba_reserve_agpgart, int, S_IRUSR | S_IRGRP | S_IROTH);
 MODULE_PARM_DESC(sba_reserve_agpgart, "Reserve half of IO pdir as AGPGART");
 #endif
 
-- 
2.9.2

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From - Thu Nov 08 21:39:06 2018
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From: Baole Ni <baolex.ni@intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 0814/1285] Replace numeric parameter like 0444 with macro
Date: Tue,  2 Aug 2016 19:49:03 +0800
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	pawel@osciak.com, m.szyprowski@samsung.com,
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I find that the developers often just specified the numeric value
when calling a macro which is defined with a parameter for access permission.
As we know, these numeric value for access permission have had the corresponding macro,
and that using macro can improve the robustness and readability of the code,
thus, I suggest replacing the numeric parameter with the macro.

Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Signed-off-by: Baole Ni <baolex.ni@intel.com>
---
 drivers/parisc/pdc_stable.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 3651c38..0cb008f 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -487,8 +487,8 @@ static const struct sysfs_ops pdcspath_attr_ops = {
 };
 
 /* These are the two attributes of any PDC path. */
-static PATHS_ATTR(hwpath, 0644, pdcspath_hwpath_read, pdcspath_hwpath_write);
-static PATHS_ATTR(layer, 0644, pdcspath_layer_read, pdcspath_layer_write);
+static PATHS_ATTR(hwpath, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, pdcspath_hwpath_read, pdcspath_hwpath_write);
+static PATHS_ATTR(layer, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, pdcspath_layer_read, pdcspath_layer_write);
 
 static struct attribute *paths_subsys_attrs[] = {
 	&paths_attr_hwpath.attr,
@@ -931,15 +931,15 @@ static ssize_t pdcs_osdep2_write(struct kobject *kobj,
 }
 
 /* The remaining attributes. */
-static PDCS_ATTR(size, 0444, pdcs_size_read, NULL);
-static PDCS_ATTR(autoboot, 0644, pdcs_autoboot_read, pdcs_autoboot_write);
-static PDCS_ATTR(autosearch, 0644, pdcs_autosearch_read, pdcs_autosearch_write);
-static PDCS_ATTR(timer, 0444, pdcs_timer_read, NULL);
-static PDCS_ATTR(osid, 0444, pdcs_osid_read, NULL);
-static PDCS_ATTR(osdep1, 0600, pdcs_osdep1_read, pdcs_osdep1_write);
-static PDCS_ATTR(diagnostic, 0400, pdcs_diagnostic_read, NULL);
-static PDCS_ATTR(fastsize, 0400, pdcs_fastsize_read, NULL);
-static PDCS_ATTR(osdep2, 0600, pdcs_osdep2_read, pdcs_osdep2_write);
+static PDCS_ATTR(size, S_IRUSR | S_IRGRP | S_IROTH, pdcs_size_read, NULL);
+static PDCS_ATTR(autoboot, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, pdcs_autoboot_read, pdcs_autoboot_write);
+static PDCS_ATTR(autosearch, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, pdcs_autosearch_read, pdcs_autosearch_write);
+static PDCS_ATTR(timer, S_IRUSR | S_IRGRP | S_IROTH, pdcs_timer_read, NULL);
+static PDCS_ATTR(osid, S_IRUSR | S_IRGRP | S_IROTH, pdcs_osid_read, NULL);
+static PDCS_ATTR(osdep1, S_IRUSR | S_IWUSR, pdcs_osdep1_read, pdcs_osdep1_write);
+static PDCS_ATTR(diagnostic, S_IRUSR, pdcs_diagnostic_read, NULL);
+static PDCS_ATTR(fastsize, S_IRUSR, pdcs_fastsize_read, NULL);
+static PDCS_ATTR(osdep2, S_IRUSR | S_IWUSR, pdcs_osdep2_read, pdcs_osdep2_write);
 
 static struct attribute *pdcs_subsys_attrs[] = {
 	&pdcs_attr_size.attr,
-- 
2.9.2

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From - Thu Nov 08 21:39:06 2018
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From: Baole Ni <baolex.ni@intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel
Subject: [PATCH 0717/1285] Replace numeric parameter like 0444 with macro
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	fw@strlen.de, davem@davemloft.net, chuansheng.liu@intel.com,
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I find that the developers often just specified the numeric value
when calling a macro which is defined with a parameter for access permission.
As we know, these numeric value for access permission have had the corresponding macro,
and that using macro can improve the robustness and readability of the code,
thus, I suggest replacing the numeric parameter with the macro.

Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Signed-off-by: Baole Ni <baolex.ni@intel.com>
---
 drivers/net/ethernet/dec/tulip/uli526x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/dec/tulip/uli526x.c b/drivers/net/ethernet/dec/tulip/uli526x.c
index e750b5d..a6cd07a 100644
--- a/drivers/net/ethernet/dec/tulip/uli526x.c
+++ b/drivers/net/ethernet/dec/tulip/uli526x.c
@@ -1789,7 +1789,7 @@ MODULE_AUTHOR("Peer Chen, peer.chen@uli.com.tw");
 MODULE_DESCRIPTION("ULi M5261/M5263 fast ethernet driver");
 MODULE_LICENSE("GPL");
 
-module_param(debug, int, 0644);
+module_param(debug, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
 module_param(mode, int, 0);
 module_param(cr6set, int, 0);
 MODULE_PARM_DESC(debug, "ULi M5261/M5263 enable debugging (0-1)");
-- 
2.9.2

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Apply for a loan at 2% reply to this Email for more Info

Hae lainaa 2% vastausta thn viestiin listietoja
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From - Thu Nov 08 21:39:07 2018
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Subject: [GIT PULL] parisc architecture updates for 4.8-rc1
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Hi Linus,

Please pull some parisc architecture updates for kernel 4.8-rc1 from 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.8-1

Changes in this patch set:
- added an optimized hash implementation for parisc (George Spelvin)
- C99 style cleanups in iomap.c (Amitoj Kaur Chawla)
- Added breaks to switch statement in PDC function (noticed by Dan Carpenter)

Thanks,
Helge

----------------------------------------------------------------
Amitoj Kaur Chawla (1):
      parisc: Change structure intialisation to C99 style in iomap.c

George Spelvin (1):
      parisc: Add <asm/hash.h>

Helge Deller (1):
      parisc: Add break statements to pdc_pat_io_pci_cfg_read()

 arch/parisc/Kconfig            |   1 +
 arch/parisc/include/asm/hash.h | 146 +++++++++++++++++++++++++++++++++++++++++
 arch/parisc/kernel/firmware.c  |   6 +-
 arch/parisc/lib/iomap.c        |  64 +++++++++---------
 4 files changed, 182 insertions(+), 35 deletions(-)
 create mode 100644 arch/parisc/include/asm/hash.h


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Commit 54b66800907 (parisc: Add native high-resolution sched_clock()
implementation) added support to use the CPU-internal cr16 counters as reliable
clocksource with the help of HAVE_UNSTABLE_SCHED_CLOCK.

Sadly the commit missed to remove the hack which prevented cr16 to become the
default clocksource even on SMP systems.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.7+

diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 5adc339..0c2a94a 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -51,8 +51,6 @@ EXPORT_SYMBOL(_parisc_requires_coherency);
 
 DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
-extern int update_cr16_clocksource(void);	/* from time.c */
-
 /*
 **  	PARISC CPU driver - claim "device" and initialize CPU data structures.
 **
@@ -228,12 +226,6 @@ static int processor_probe(struct parisc_device *dev)
 	}
 #endif
 
-	/* If we've registered more than one cpu,
-	 * we'll use the jiffies clocksource since cr16
-	 * is not synchronized between CPUs.
-	 */
-	update_cr16_clocksource();
-
 	return 0;
 }
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 505cf1a..4b0b963 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -221,18 +221,6 @@ static struct clocksource clocksource_cr16 = {
 	.flags			= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
-int update_cr16_clocksource(void)
-{
-	/* since the cr16 cycle counters are not synchronized across CPUs,
-	   we'll check if we should switch to a safe clocksource: */
-	if (clocksource_cr16.rating != 0 && num_online_cpus() > 1) {
-		clocksource_change_rating(&clocksource_cr16, 0);
-		return 1;
-	}
-
-	return 0;
-}

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Subject: [PATCH] parisc: Fix order of EREFUSED define in errno.h
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When building gccgo in userspace, errno.h gets parsed and the go include file
sysinfo.go is generated.

Since EREFUSED is defined to the same value as ECONNREFUSED, and ECONNREFUSED
is defined later on in errno.h, this leads to go complaining that EREFUSED
isn't defined yet.

Fix this trivial problem by moving the define of EREFUSED down after
ECONNREFUSED in errno.h (and clean up the indenting while touching this line).

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org

diff --git a/arch/parisc/include/uapi/asm/errno.h b/arch/parisc/include/uapi/asm/errno.h
index c0ae625..a714d01 100644
--- a/arch/parisc/include/uapi/asm/errno.h
+++ b/arch/parisc/include/uapi/asm/errno.h
@@ -97,10 +97,10 @@
 #define	ENOTCONN	235	/* Transport endpoint is not connected */
 #define	ESHUTDOWN	236	/* Cannot send after transport endpoint shutdown */
 #define	ETOOMANYREFS	237	/* Too many references: cannot splice */
-#define EREFUSED	ECONNREFUSED	/* for HP's NFS apparently */
 #define	ETIMEDOUT	238	/* Connection timed out */
 #define	ECONNREFUSED	239	/* Connection refused */
-#define EREMOTERELEASE	240	/* Remote peer released connection */
+#define	EREFUSED	ECONNREFUSED	/* for HP's NFS apparently */
+#define	EREMOTERELEASE	240	/* Remote peer released connection */
 #define	EHOSTDOWN	241	/* Host is down */
 #define	EHOSTUNREACH	242	/* No route to host */
 
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Hi Linus,

Please pull two fixes for the parisc architecture for kernel 4.8-rc3 from 
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.8-2

The first patch ensures that the high-res cr16 clocksource (which was added in
kernel 4.7) gets choosen as default clocksource for parisc.

The second patch moves the #define of EREFUSED down inside errno.h and thus
unbreaks building the gccgo compiler.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (2):
      parisc: Fix automatic selection of cr16 clocksource
      parisc: Fix order of EREFUSED define in errno.h

 arch/parisc/include/uapi/asm/errno.h |  4 ++--
 arch/parisc/kernel/processor.c       |  8 --------
 arch/parisc/kernel/time.c            | 12 ------------
 3 files changed, 2 insertions(+), 22 deletions(-)
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 28 Aug 2016 11:40:53 +0200

* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus use the corresponding function "kmalloc_array".

  This issue was detected by using the Coccinelle software.

* Replace the specification of a data type by a pointer dereference
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 arch/parisc/kernel/inventory.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index f0b6722..545f9d2 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -506,7 +506,7 @@ add_system_map_addresses(struct parisc_device *dev, int num_addrs,
 	long status;
 	struct pdc_system_map_addr_info addr_result;
 
-	dev->addr = kmalloc(num_addrs * sizeof(unsigned long), GFP_KERNEL);
+	dev->addr = kmalloc_array(num_addrs, sizeof(*dev->addr), GFP_KERNEL);
 	if(!dev->addr) {
 		printk(KERN_ERR "%s %s(): memory allocation failure\n",
 		       __FILE__, __func__);
-- 
2.9.3

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From - Thu Nov 08 21:39:07 2018
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From: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] parisc: led: Remove deprecated create_singlethread_workqueue
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The workqueue "led_wq" queues a single work item &led_task and hence
doesn't require ordering. It is involved in managing when and which
chassis LCD/LED gets updated and hence, is not being used on a memory
reclaim path. Hence, it has been converted to use system_wq.

System workqueues have been able to handle high level of concurrency
for a long time now and hence it's not required to have a singlethreaded
workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue
created with create_singlethread_workqueue(), system_wq allows multiple
work items to overlap executions even on the same CPU; however, a
per-cpu workqueue doesn't have any CPU locality or global ordering
guarantee unless the target CPU is explicitly specified and thus the
increase of local concurrency shouldn't make any difference.

The work item has been sync cancelled in led_halt to ensure that
there are no pending tasks while disconnecting the driver.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
---
 drivers/parisc/led.c | 23 ++++++-----------------
 1 file changed, 6 insertions(+), 17 deletions(-)

diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index b482431..89dff2e 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -67,7 +67,6 @@ static char lcd_text_default[32]  __read_mostly;
 static int  lcd_no_led_support    __read_mostly = 0; /* KittyHawk doesn't support LED on its LCD */


-static struct workqueue_struct *led_wq;
 static void led_work_func(struct work_struct *);
 static DECLARE_DELAYED_WORK(led_task, led_work_func);

@@ -140,8 +139,7 @@ static int start_task(void)
 	if (lcd_no_led_support) return 0;

 	/* Create the work queue and queue the LED task */
-	led_wq = create_singlethread_workqueue("led_wq");
-	queue_delayed_work(led_wq, &led_task, 0);
+	schedule_delayed_work(&led_task, 0);

 	return 0;
 }
@@ -524,12 +522,8 @@ static int led_halt(struct notifier_block *nb, unsigned long event, void *buf)
 	default:		return NOTIFY_DONE;
 	}

-	/* Cancel the work item and delete the queue */
-	if (led_wq) {
-		cancel_delayed_work_sync(&led_task);
-		destroy_workqueue(led_wq);
-		led_wq = NULL;
-	}
+	/* Cancel the work item */
+	cancel_delayed_work_sync(&led_task);

 	if (lcd_info.model == DISPLAY_MODEL_LCD)
 		lcd_print(txt);
@@ -594,9 +588,7 @@ int __init register_led_driver(int model, unsigned long cmd_reg, unsigned long d
 	register_reboot_notifier(&led_notifier);

 	/* Ensure the work is queued */
-	if (led_wq) {
-		queue_delayed_work(led_wq, &led_task, 0);
-	}
+	schedule_delayed_work(&led_task, 0);

 	return 0;
 }
@@ -644,8 +636,7 @@ int lcd_print( const char *str )
 	    return 0;

 	/* temporarily disable the led work task */
-	if (led_wq)
-		cancel_delayed_work_sync(&led_task);
+	cancel_delayed_work_sync(&led_task);

 	/* copy display string to buffer for procfs */
 	strlcpy(lcd_text, str, sizeof(lcd_text));
@@ -664,9 +655,7 @@ int lcd_print( const char *str )
 	}

 	/* re-queue the work */
-	if (led_wq) {
-		queue_delayed_work(led_wq, &led_task, 0);
-	}
+	schedule_delayed_work(&led_task, 0);

 	return lcd_info.lcd_width;
 }
--
2.1.4

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From - Thu Nov 08 21:39:07 2018
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Subject: Re: [PATCH] parisc: led: Remove deprecated
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On Tue, Aug 30, 2016 at 10:03:43PM +0530, Bhaktipriya Shridhar wrote:
> The workqueue "led_wq" queues a single work item &led_task and hence
> doesn't require ordering. It is involved in managing when and which
> chassis LCD/LED gets updated and hence, is not being used on a memory
> reclaim path. Hence, it has been converted to use system_wq.
> 
> System workqueues have been able to handle high level of concurrency
> for a long time now and hence it's not required to have a singlethreaded
> workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue
> created with create_singlethread_workqueue(), system_wq allows multiple
> work items to overlap executions even on the same CPU; however, a
> per-cpu workqueue doesn't have any CPU locality or global ordering
> guarantee unless the target CPU is explicitly specified and thus the
> increase of local concurrency shouldn't make any difference.
> 
> The work item has been sync cancelled in led_halt to ensure that
> there are no pending tasks while disconnecting the driver.
> 
> Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>

Acked-by: Tejun Heo <tj@kernel.org>

Thanks.

-- 
tejun
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From - Thu Nov 08 21:39:07 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.kernel.janitors,gmane.linux.alsa.devel,gmane.linux.ports.parisc
Subject: [PATCH 0/6] constify snd_pcm_ops structures
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Cc: kernel-janitors@vger.kernel.org, Takashi Iwai <tiwai@suse.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2299479>

Constify snd_pcm_ops structures.

---

 sound/firewire/dice/dice-pcm.c          |    4 ++--
 sound/firewire/digi00x/digi00x-pcm.c    |    4 ++--
 sound/firewire/oxfw/oxfw-pcm.c          |    4 ++--
 sound/firewire/tascam/tascam-pcm.c      |    4 ++--
 sound/pci/ad1889.c                      |    4 ++--
 sound/pci/als300.c                      |    4 ++--
 sound/pci/als4000.c                     |    4 ++--
 sound/pci/asihpi/asihpi.c               |    4 ++--
 sound/pci/atiixp.c                      |    6 +++---
 sound/pci/atiixp_modem.c                |    4 ++--
 sound/pci/aw2/aw2-alsa.c                |    4 ++--
 sound/pci/azt3328.c                     |    6 +++---
 sound/pci/bt87x.c                       |    2 +-
 sound/pci/ca0106/ca0106_main.c          |   16 ++++++++--------
 sound/pci/cmipci.c                      |   10 +++++-----
 sound/pci/cs4281.c                      |    4 ++--
 sound/pci/cs5535audio/cs5535audio_pcm.c |    4 ++--
 sound/pci/ctxfi/ctpcm.c                 |    4 ++--
 sound/pci/emu10k1/emu10k1x.c            |    4 ++--
 sound/pci/emu10k1/emupcm.c              |   12 ++++++------
 sound/pci/emu10k1/p16v.c                |    4 ++--
 sound/pci/ens1370.c                     |    6 +++---
 sound/pci/es1938.c                      |    4 ++--
 sound/pci/es1968.c                      |    4 ++--
 sound/pci/fm801.c                       |    4 ++--
 sound/pci/hda/hda_controller.c          |    2 +-
 sound/pci/ice1712/ice1712.c             |   10 +++++-----
 sound/pci/ice1712/ice1724.c             |   10 +++++-----
 sound/pci/korg1212/korg1212.c           |    4 ++--
 sound/pci/lola/lola_pcm.c               |    2 +-
 sound/pci/lx6464es/lx6464es.c           |    4 ++--
 sound/pci/maestro3.c                    |    4 ++--
 sound/pci/mixart/mixart.c               |    4 ++--
 sound/pci/nm256/nm256.c                 |    4 ++--
 sound/pci/oxygen/oxygen_pcm.c           |   12 ++++++------
 sound/pci/pcxhr/pcxhr.c                 |    2 +-
 sound/pci/riptide/riptide.c             |    4 ++--
 sound/pci/rme32.c                       |   16 ++++++++--------
 sound/pci/rme96.c                       |    8 ++++----
 sound/pci/rme9652/hdsp.c                |    4 ++--
 sound/pci/rme9652/hdspm.c               |    2 +-
 sound/pci/rme9652/rme9652.c             |    4 ++--
 sound/pci/sonicvibes.c                  |    4 ++--
 sound/pci/trident/trident_main.c        |   12 ++++++------
 sound/pci/via82xx.c                     |   10 +++++-----
 sound/pci/via82xx_modem.c               |    4 ++--
 sound/pci/ymfpci/ymfpci_main.c          |   10 +++++-----
 47 files changed, 133 insertions(+), 133 deletions(-)


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Subject: [PATCH 4/6] ALSA: ad1889: constify snd_pcm_ops
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 Takashi Iwai <tiwai@suse.com>
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Check for snd_pcm_ops structures that are only stored in the ops field of a
snd_soc_platform_driver structure or passed as the third argument to
snd_pcm_set_ops.  The corresponding field or parameter is declared const,
so snd_pcm_ops structures that have this property can be declared as const
also.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct snd_pcm_ops i@p = { ... };

@ok1@
identifier r.i;
struct snd_soc_platform_driver e;
position p;
@@
e.ops = &i@p;

@ok2@
identifier r.i;
expression e1, e2;
position p;
@@
snd_pcm_set_ops(e1, e2, &i@p)

@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct snd_pcm_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct snd_pcm_ops i = { ... };
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
 sound/pci/ad1889.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index 1fc6d8b..8c36990 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -571,7 +571,7 @@ snd_ad1889_capture_pointer(struct snd_pcm_substream *ss)
 	return bytes_to_frames(ss->runtime, ptr);
 }
 
-static struct snd_pcm_ops snd_ad1889_playback_ops = {
+static const struct snd_pcm_ops snd_ad1889_playback_ops = {
 	.open = snd_ad1889_playback_open,
 	.close = snd_ad1889_playback_close,
 	.ioctl = snd_pcm_lib_ioctl,
@@ -582,7 +582,7 @@ static struct snd_pcm_ops snd_ad1889_playback_ops = {
 	.pointer = snd_ad1889_playback_pointer, 
 };
 
-static struct snd_pcm_ops snd_ad1889_capture_ops = {
+static const struct snd_pcm_ops snd_ad1889_capture_ops = {
 	.open = snd_ad1889_capture_open,
 	.close = snd_ad1889_capture_close,
 	.ioctl = snd_pcm_lib_ioctl,


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Julia Lawall wrote:
> Constify snd_pcm_ops structures.

For 3/5/6:
Acked-by: Clemens Ladisch <clemens@ladisch.de>


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On Fri, 02 Sep 2016 00:13:08 +0200,
Julia Lawall wrote:
> 
> Constify snd_pcm_ops structures.

Applied all six patches now.  Thanks.


Takashi
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On Fri, 2 Sep 2016, Takashi Iwai wrote:

> On Fri, 02 Sep 2016 00:13:08 +0200,
> Julia Lawall wrote:
> >
> > Constify snd_pcm_ops structures.
>
> Applied all six patches now.  Thanks.

Thanks.  There are a bunch more for this type, for other directories.  I
will send them shortly.

julia
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/3876>

This came to light when implementing native 64-bit atomics for ARCv2.

The atomic64 self-test code uses CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
to check whether atomic64_dec_if_positive() is available.
It seems it was needed when not every arch defined it.
However as of current code the Kconfig option seems needless

- for CONFIG_GENERIC_ATOMIC64 it is auto-enabled in lib/Kconfig and a
  generic definition of API is present lib/atomic64.c
- arches with native 64-bit atomics select it in arch/*/Kconfig and
  define the API in their headers

So I see no point in keeping the Kconfig option

Compile tested for 2 representatives:
 - blackfin (CONFIG_GENERIC_ATOMIC64)
 - x86 (!CONFIG_GENERIC_ATOMIC64)

Also logistics wise it seemed simpler to just do this in 1 patch vs.
splitting per arch - but I can break it up if maintainer feel that
is better to avoid conflicts.

Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Ming Lin <ming.l@ssi.samsung.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-arch@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/alpha/Kconfig   | 1 -
 arch/arm/Kconfig     | 1 -
 arch/arm64/Kconfig   | 1 -
 arch/mips/Kconfig    | 1 -
 arch/parisc/Kconfig  | 1 -
 arch/powerpc/Kconfig | 1 -
 arch/s390/Kconfig    | 1 -
 arch/sparc/Kconfig   | 1 -
 arch/tile/Kconfig    | 1 -
 arch/x86/Kconfig     | 1 -
 lib/Kconfig          | 3 ---
 lib/atomic64_test.c  | 4 ----
 12 files changed, 17 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 7f312d80b43b..0e49d39ea74a 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -15,7 +15,6 @@ config ALPHA
 	select GENERIC_IRQ_SHOW
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select AUDIT_ARCH
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_SMP_IDLE_THREAD
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a9c4e48bb7ec..2a50957c7bfb 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1,7 +1,6 @@
 config ARM
 	bool
 	default y
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index bc3f00f586f1..3df2ca7efbcc 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -6,7 +6,6 @@ config ARM64
 	select ACPI_MCFG if ACPI
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_KCOV
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 26388562e300..5bbea197c220 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -30,7 +30,6 @@ config MIPS
 	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
 	select RTC_LIB if !MACH_LOONGSON64
 	select GENERIC_ATOMIC64 if !64BIT
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select HAVE_DMA_CONTIGUOUS
 	select HAVE_DMA_API_DEBUG
 	select GENERIC_IRQ_PROBE
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index cd8778103165..9e40b52c0721 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -15,7 +15,6 @@ config PARISC
 	select BUILDTIME_EXTABLE_SORT
 	select HAVE_PERF_EVENTS
 	select GENERIC_ATOMIC64 if !64BIT
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select BROKEN_RODATA
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PCI_IOMAP
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 927d2ab2ce08..18d1b42cf545 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -113,7 +113,6 @@ config PPC
 	select HAVE_DEBUG_KMEMLEAK
 	select ARCH_HAS_SG_CHAIN
 	select GENERIC_ATOMIC64 if PPC32
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select HAVE_PERF_EVENTS
 	select HAVE_PERF_REGS
 	select HAVE_PERF_USER_STACK_DUMP
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index e751fe25d6ab..af52b07efde2 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -67,7 +67,6 @@ config DEBUG_RODATA
 
 config S390
 	def_bool y
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 59b09600dd32..bfedbe0cb7b2 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -22,7 +22,6 @@ config SPARC
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_EXIT_THREAD
 	select SYSCTL_EXCEPTION_TRACE
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select RTC_CLASS
 	select RTC_DRV_M48T59
 	select RTC_SYSTOHC
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 4820a02838ac..12eda5440c93 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -3,7 +3,6 @@
 
 config TILE
 	def_bool y
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c580d8c33562..0cf609998550 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -23,7 +23,6 @@ config X86
 	select ARCH_CLOCKSOURCE_DATA
 	select ARCH_DISCARD_MEMBLOCK
 	select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
diff --git a/lib/Kconfig b/lib/Kconfig
index d79909dc01ec..0e74df3c5441 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -457,9 +457,6 @@ config NLATTR
 config GENERIC_ATOMIC64
        bool
 
-config ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
-	def_bool y if GENERIC_ATOMIC64
-
 config LRU_CACHE
 	tristate
 
diff --git a/lib/atomic64_test.c b/lib/atomic64_test.c
index dbb369145dda..46042901130f 100644
--- a/lib/atomic64_test.c
+++ b/lib/atomic64_test.c
@@ -213,7 +213,6 @@ static __init void test_atomic64(void)
 	r += one;
 	BUG_ON(v.counter != r);
 
-#ifdef CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	INIT(onestwos);
 	BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1));
 	r -= one;
@@ -226,9 +225,6 @@ static __init void test_atomic64(void)
 	INIT(-one);
 	BUG_ON(atomic64_dec_if_positive(&v) != (-one - one));
 	BUG_ON(v.counter != r);
-#else
-#warning Please implement atomic64_dec_if_positive for your architecture and select the above Kconfig symbol
-#endif
 
 	INIT(onestwos);
 	BUG_ON(!atomic64_inc_not_zero(&v));
-- 
2.7.4

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From - Thu Nov 08 21:39:07 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] atomic64: No need for
 CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Date: Thu, 8 Sep 2016 20:19:05 +0200
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Approved: news@gmane.org
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Cc: linux-mips@linux-mips.org, Catalin Marinas <catalin.marinas@arm.com>,
 Linus Walleij <linus.walleij@linaro.org>,
 Alexey Brodkin <Alexey.Brodkin@synopsys.com>,
 Heiko Carstens <heiko.carstens@de.ibm.com>,
 "James  E.J. Bottomley" <jejb@parisc-linux.org>,
 Paul Mackerras <paulus@samba.org>, "H.  Peter Anvin" <hpa@zytor.com>,
 sparclinux@vger.kernel.org, linux-arch@vger.kernel.org,
 linux-s390@vger.kernel.org, Andi Kleen <ak@linux.intel.com>,
 Herbert Xu <herbert@gondor.apana.org.au>,
 Michael Ellerman <mpe@ellerman.id.au>, Helge Deller <deller@gmx.de>,
 x86@kernel.org, Russell King <linux@armlinux.org.uk>,
 Ingo Molnar <mingo@redhat.com>, Geert Uytterhoeven <geert@linux-m68k.org>,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Matthew Wilcox <willy@linux.intel.com>, Matt Turner <mattst88@gmail.com>,
 Borislav Petkov <bp@suse.de>, Ming Lin <ming.l@ssi.samsung.com>,
 Chris Metcalf
To: Vineet Gupta <Vineet.Gupta1@synopsys.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/1453>

On Thu, Sep 08, 2016 at 09:28:18AM -0700, Vineet Gupta wrote:
> This came to light when implementing native 64-bit atomics for ARCv2.
> 
> The atomic64 self-test code uses CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
> to check whether atomic64_dec_if_positive() is available.
> It seems it was needed when not every arch defined it.
> However as of current code the Kconfig option seems needless
> 
> - for CONFIG_GENERIC_ATOMIC64 it is auto-enabled in lib/Kconfig and a
>   generic definition of API is present lib/atomic64.c
> - arches with native 64-bit atomics select it in arch/*/Kconfig and
>   define the API in their headers
> 
> So I see no point in keeping the Kconfig option
> 
> Compile tested for 2 representatives:
>  - blackfin (CONFIG_GENERIC_ATOMIC64)
>  - x86 (!CONFIG_GENERIC_ATOMIC64)
> 
> Also logistics wise it seemed simpler to just do this in 1 patch vs.
> splitting per arch - but I can break it up if maintainer feel that
> is better to avoid conflicts.

Works for me; you want me to take this, or do you need it for you ARCv2
patches?

From - Thu Nov 08 21:39:08 2018
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Subject: Re: [PATCH] atomic64: No need for
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To: Peter Zijlstra <peterz@infradead.org>
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On 09/08/2016 11:19 AM, Peter Zijlstra wrote:
> On Thu, Sep 08, 2016 at 09:28:18AM -0700, Vineet Gupta wrote:
>> This came to light when implementing native 64-bit atomics for ARCv2.
>>
>> The atomic64 self-test code uses CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
>> to check whether atomic64_dec_if_positive() is available.
>> It seems it was needed when not every arch defined it.
>> However as of current code the Kconfig option seems needless
>>
>> - for CONFIG_GENERIC_ATOMIC64 it is auto-enabled in lib/Kconfig and a
>>   generic definition of API is present lib/atomic64.c
>> - arches with native 64-bit atomics select it in arch/*/Kconfig and
>>   define the API in their headers
>>
>> So I see no point in keeping the Kconfig option
>>
>> Compile tested for 2 representatives:
>>  - blackfin (CONFIG_GENERIC_ATOMIC64)
>>  - x86 (!CONFIG_GENERIC_ATOMIC64)
>>
>> Also logistics wise it seemed simpler to just do this in 1 patch vs.
>> splitting per arch - but I can break it up if maintainer feel that
>> is better to avoid conflicts.
> Works for me; you want me to take this, or do you need it for you ARCv2
> patches?

Please do. ARCv2 patch (following shortly) doesn't need it - I selected the
option in orig patch - which I can just take out.

Thx,
-Vineet



From - Thu Nov 08 21:39:08 2018
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Subject: Re: [PATCH] atomic64: No need for
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Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org,
        linux-mips@linux-mips.org, Peter Zijlstra <peterz@infradead.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
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To: Vineet Gupta <Vineet.Gupta1@synopsys.com>
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Hi Vineet,

[auto build test ERROR on arm64/for-next/core]
[cannot apply to linus/master linux/master v4.8-rc5 next-20160909]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    https://github.com/0day-ci/linux/commits/Vineet-Gupta/atomic64-No-need-for-CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE/20160909-013936
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 4.9.0
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=ia64 

All errors (new ones prefixed by >>):

   lib/atomic64_test.c: In function 'test_atomic64':
>> lib/atomic64_test.c:217:2: error: implicit declaration of function 'atomic64_dec_if_positive' [-Werror=implicit-function-declaration]
     BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1));
     ^
   cc1: some warnings being treated as errors

vim +/atomic64_dec_if_positive +217 lib/atomic64_test.c

86a89380 Luca Barbieri 2010-02-24  211  	INIT(v0);
9efbcd59 Luca Barbieri 2010-03-01  212  	BUG_ON(!atomic64_add_unless(&v, one, v1));
86a89380 Luca Barbieri 2010-02-24  213  	r += one;
86a89380 Luca Barbieri 2010-02-24  214  	BUG_ON(v.counter != r);
86a89380 Luca Barbieri 2010-02-24  215  
86a89380 Luca Barbieri 2010-02-24  216  	INIT(onestwos);
86a89380 Luca Barbieri 2010-02-24 @217  	BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1));
86a89380 Luca Barbieri 2010-02-24  218  	r -= one;
86a89380 Luca Barbieri 2010-02-24  219  	BUG_ON(v.counter != r);
86a89380 Luca Barbieri 2010-02-24  220  

:::::: The code at line 217 was first introduced by commit
:::::: 86a8938078a8bb518c5376de493e348c7490d506 lib: Add self-test for atomic64_t

:::::: TO: Luca Barbieri <luca@luca-barbieri.com>
:::::: CC: H. Peter Anvin <hpa@zytor.com>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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--tThc/1wpZn/ma/RB--

From - Thu Nov 08 21:39:08 2018
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X-Mozilla-Keys:                                                                                 
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From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 2/2] atomic64: No need for CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Date: Mon, 12 Sep 2016 10:47:12 -0700
Lines: 247
Approved: news@gmane.org
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Cc: <linux-kernel@vger.kernel.org>,
        <linux-snps-arc@lists.infradead.org>,
        Vineet Gupta <Vineet.Gupta1@synopsys.com>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
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        "David S. Miller" <davem@davemloft.net>,
        Chris Metcalf <cmetcalf@mellanox.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        "Ingo Molnar" <mingo@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26959>

This came to light when implementing native 64-bit atomics for ARCv2.

The atomic64 self-test code uses CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
to check whether atomic64_dec_if_positive() is available.
It seems it was needed when not every arch defined it.
However as of current code the Kconfig option seems needless

- for CONFIG_GENERIC_ATOMIC64 it is auto-enabled in lib/Kconfig and a
  generic definition of API is present lib/atomic64.c
- arches with native 64-bit atomics select it in arch/*/Kconfig and
  define the API in their headers

So I see no point in keeping the Kconfig option

Compile tested for:
 - blackfin (CONFIG_GENERIC_ATOMIC64)
 - x86 (!CONFIG_GENERIC_ATOMIC64)
 - ia64

Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Ming Lin <ming.l@ssi.samsung.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-arch@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/alpha/Kconfig   | 1 -
 arch/arm/Kconfig     | 1 -
 arch/arm64/Kconfig   | 1 -
 arch/mips/Kconfig    | 1 -
 arch/parisc/Kconfig  | 1 -
 arch/powerpc/Kconfig | 1 -
 arch/s390/Kconfig    | 2 +-
 arch/sparc/Kconfig   | 1 -
 arch/tile/Kconfig    | 2 +-
 arch/x86/Kconfig     | 2 +-
 lib/Kconfig          | 3 ---
 lib/atomic64_test.c  | 4 ----
 12 files changed, 3 insertions(+), 17 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 7f312d80b43b..0e49d39ea74a 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -15,7 +15,6 @@ config ALPHA
 	select GENERIC_IRQ_SHOW
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select AUDIT_ARCH
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_SMP_IDLE_THREAD
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a9c4e48bb7ec..2a50957c7bfb 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1,7 +1,6 @@
 config ARM
 	bool
 	default y
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index bc3f00f586f1..3df2ca7efbcc 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -6,7 +6,6 @@ config ARM64
 	select ACPI_MCFG if ACPI
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_KCOV
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 26388562e300..5bbea197c220 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -30,7 +30,6 @@ config MIPS
 	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
 	select RTC_LIB if !MACH_LOONGSON64
 	select GENERIC_ATOMIC64 if !64BIT
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select HAVE_DMA_CONTIGUOUS
 	select HAVE_DMA_API_DEBUG
 	select GENERIC_IRQ_PROBE
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index af12c2db9bb8..8a96bdcc3807 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -14,7 +14,6 @@ config PARISC
 	select BUILDTIME_EXTABLE_SORT
 	select HAVE_PERF_EVENTS
 	select GENERIC_ATOMIC64 if !64BIT
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select BROKEN_RODATA
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PCI_IOMAP
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 927d2ab2ce08..18d1b42cf545 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -113,7 +113,6 @@ config PPC
 	select HAVE_DEBUG_KMEMLEAK
 	select ARCH_HAS_SG_CHAIN
 	select GENERIC_ATOMIC64 if PPC32
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select HAVE_PERF_EVENTS
 	select HAVE_PERF_REGS
 	select HAVE_PERF_USER_STACK_DUMP
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c109f073d454..af52b07efde2 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -67,7 +67,7 @@ config DEBUG_RODATA
 
 config S390
 	def_bool y
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_GCOV_PROFILE_ALL
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 59b09600dd32..bfedbe0cb7b2 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -22,7 +22,6 @@ config SPARC
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_EXIT_THREAD
 	select SYSCTL_EXCEPTION_TRACE
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select RTC_CLASS
 	select RTC_DRV_M48T59
 	select RTC_SYSTOHC
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 78da75b670bc..12eda5440c93 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -3,7 +3,7 @@
 
 config TILE
 	def_bool y
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_WANT_FRAME_POINTERS
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2a1f0ce7c59a..0cf609998550 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -23,7 +23,7 @@ config X86
 	select ARCH_CLOCKSOURCE_DATA
 	select ARCH_DISCARD_MEMBLOCK
 	select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_FAST_MULTIPLIER
diff --git a/lib/Kconfig b/lib/Kconfig
index d79909dc01ec..0e74df3c5441 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -457,9 +457,6 @@ config NLATTR
 config GENERIC_ATOMIC64
        bool
 
-config ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
-	def_bool y if GENERIC_ATOMIC64
-
 config LRU_CACHE
 	tristate
 
diff --git a/lib/atomic64_test.c b/lib/atomic64_test.c
index dbb369145dda..46042901130f 100644
--- a/lib/atomic64_test.c
+++ b/lib/atomic64_test.c
@@ -213,7 +213,6 @@ static __init void test_atomic64(void)
 	r += one;
 	BUG_ON(v.counter != r);
 
-#ifdef CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	INIT(onestwos);
 	BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1));
 	r -= one;
@@ -226,9 +225,6 @@ static __init void test_atomic64(void)
 	INIT(-one);
 	BUG_ON(atomic64_dec_if_positive(&v) != (-one - one));
 	BUG_ON(v.counter != r);
-#else
-#warning Please implement atomic64_dec_if_positive for your architecture and select the above Kconfig symbol
-#endif
 
 	INIT(onestwos);
 	BUG_ON(!atomic64_inc_not_zero(&v));
-- 
2.7.4

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From - Thu Nov 08 21:39:08 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 2/2] atomic64: No need for CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Date: Mon, 12 Sep 2016 10:58:03 -0700
Lines: 244
Approved: news@gmane.org
Message-ID: <1473703083-8625-3-git-send-email-vgupta@synopsys.com>
References: <201609111259.q67d9T4B%fengguang.wu@intel.com>
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Cc: <linux-kernel@vger.kernel.org>,
        <linux-snps-arc@lists.infradead.org>,
        Vineet Gupta <Vineet.Gupta1@synopsys.com>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Ralf Baechle <ralf@linux-mips.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        "Michael Ellerman" <mpe@ellerman.id.au>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        "David S. Miller" <davem@davemloft.net>,
        Chris Metcalf <cmetcalf@mellanox.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        "Ingo Molnar" <mingo@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26960>

This came to light when implementing native 64-bit atomics for ARCv2.

The atomic64 self-test code uses CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
to check whether atomic64_dec_if_positive() is available.
It seems it was needed when not every arch defined it.
However as of current code the Kconfig option seems needless

- for CONFIG_GENERIC_ATOMIC64 it is auto-enabled in lib/Kconfig and a
  generic definition of API is present lib/atomic64.c
- arches with native 64-bit atomics select it in arch/*/Kconfig and
  define the API in their headers

So I see no point in keeping the Kconfig option

Compile tested for:
 - blackfin (CONFIG_GENERIC_ATOMIC64)
 - x86 (!CONFIG_GENERIC_ATOMIC64)
 - ia64

Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Ming Lin <ming.l@ssi.samsung.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-arch@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/alpha/Kconfig   | 1 -
 arch/arm/Kconfig     | 1 -
 arch/arm64/Kconfig   | 1 -
 arch/mips/Kconfig    | 1 -
 arch/parisc/Kconfig  | 1 -
 arch/powerpc/Kconfig | 1 -
 arch/s390/Kconfig    | 1 -
 arch/sparc/Kconfig   | 1 -
 arch/tile/Kconfig    | 1 -
 arch/x86/Kconfig     | 1 -
 lib/Kconfig          | 3 ---
 lib/atomic64_test.c  | 4 ----
 12 files changed, 17 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 7f312d80b43b..0e49d39ea74a 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -15,7 +15,6 @@ config ALPHA
 	select GENERIC_IRQ_SHOW
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select AUDIT_ARCH
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_SMP_IDLE_THREAD
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a9c4e48bb7ec..2a50957c7bfb 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1,7 +1,6 @@
 config ARM
 	bool
 	default y
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index bc3f00f586f1..3df2ca7efbcc 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -6,7 +6,6 @@ config ARM64
 	select ACPI_MCFG if ACPI
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_KCOV
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 26388562e300..5bbea197c220 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -30,7 +30,6 @@ config MIPS
 	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
 	select RTC_LIB if !MACH_LOONGSON64
 	select GENERIC_ATOMIC64 if !64BIT
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select HAVE_DMA_CONTIGUOUS
 	select HAVE_DMA_API_DEBUG
 	select GENERIC_IRQ_PROBE
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index af12c2db9bb8..8a96bdcc3807 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -14,7 +14,6 @@ config PARISC
 	select BUILDTIME_EXTABLE_SORT
 	select HAVE_PERF_EVENTS
 	select GENERIC_ATOMIC64 if !64BIT
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select BROKEN_RODATA
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PCI_IOMAP
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 927d2ab2ce08..18d1b42cf545 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -113,7 +113,6 @@ config PPC
 	select HAVE_DEBUG_KMEMLEAK
 	select ARCH_HAS_SG_CHAIN
 	select GENERIC_ATOMIC64 if PPC32
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select HAVE_PERF_EVENTS
 	select HAVE_PERF_REGS
 	select HAVE_PERF_USER_STACK_DUMP
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c109f073d454..d89d97ac83c4 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -67,7 +67,6 @@ config DEBUG_RODATA
 
 config S390
 	def_bool y
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_GCOV_PROFILE_ALL
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 59b09600dd32..bfedbe0cb7b2 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -22,7 +22,6 @@ config SPARC
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_EXIT_THREAD
 	select SYSCTL_EXCEPTION_TRACE
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select RTC_CLASS
 	select RTC_DRV_M48T59
 	select RTC_SYSTOHC
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 78da75b670bc..4583c0320059 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -3,7 +3,6 @@
 
 config TILE
 	def_bool y
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_WANT_FRAME_POINTERS
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2a1f0ce7c59a..018076fcffcf 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -23,7 +23,6 @@ config X86
 	select ARCH_CLOCKSOURCE_DATA
 	select ARCH_DISCARD_MEMBLOCK
 	select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
-	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_FAST_MULTIPLIER
diff --git a/lib/Kconfig b/lib/Kconfig
index d79909dc01ec..0e74df3c5441 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -457,9 +457,6 @@ config NLATTR
 config GENERIC_ATOMIC64
        bool
 
-config ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
-	def_bool y if GENERIC_ATOMIC64
-
 config LRU_CACHE
 	tristate
 
diff --git a/lib/atomic64_test.c b/lib/atomic64_test.c
index dbb369145dda..46042901130f 100644
--- a/lib/atomic64_test.c
+++ b/lib/atomic64_test.c
@@ -213,7 +213,6 @@ static __init void test_atomic64(void)
 	r += one;
 	BUG_ON(v.counter != r);
 
-#ifdef CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	INIT(onestwos);
 	BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1));
 	r -= one;
@@ -226,9 +225,6 @@ static __init void test_atomic64(void)
 	INIT(-one);
 	BUG_ON(atomic64_dec_if_positive(&v) != (-one - one));
 	BUG_ON(v.counter != r);
-#else
-#warning Please implement atomic64_dec_if_positive for your architecture and select the above Kconfig symbol
-#endif
 
 	INIT(onestwos);
 	BUG_ON(!atomic64_inc_not_zero(&v));
-- 
2.7.4

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From - Thu Nov 08 21:39:08 2018
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From: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
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Subject: [PATCH v2 11/11] parisc/tracing: fix compat syscall handling
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Xref: news.gmane.org gmane.linux.ports.parisc:26961 gmane.linux.kernel:2309909
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/26961>

Add missing arch code - arch_trace_is_compat_syscall and
arch_syscall_addr

Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/include/asm/ftrace.h | 10 ++++++++++
 arch/parisc/kernel/Makefile      |  1 +
 arch/parisc/kernel/ftrace.c      | 15 +++++++++++++++
 3 files changed, 26 insertions(+)

diff --git a/arch/parisc/include/asm/ftrace.h b/arch/parisc/include/asm/ftrace.h
index d635c6b..0b54385 100644
--- a/arch/parisc/include/asm/ftrace.h
+++ b/arch/parisc/include/asm/ftrace.h
@@ -12,6 +12,16 @@ extern unsigned long return_address(unsigned int);
 
 #define ftrace_return_address(n) return_address(n)
 
+#if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_COMPAT)
+#include <linux/compat.h>
+
+#define ARCH_COMPAT_SYSCALL_NUMBERS_OVERLAP 1
+static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs)
+{
+	return in_compat_syscall();
+}
+#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_COMPAT */
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_PARISC_FTRACE_H */
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 69a1118..7d1fd39 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -31,3 +31,4 @@ obj64-$(CONFIG_AUDIT)	+= compat_audit.o
 obj-$(CONFIG_64BIT)	+= perf.o perf_asm.o $(obj64-y)
 obj-$(CONFIG_FUNCTION_TRACER)		+= ftrace.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)	+= ftrace.o
+obj-$(CONFIG_FTRACE_SYSCALLS)	+= ftrace.o
diff --git a/arch/parisc/kernel/ftrace.c b/arch/parisc/kernel/ftrace.c
index a828a0a..5991fe9 100644
--- a/arch/parisc/kernel/ftrace.c
+++ b/arch/parisc/kernel/ftrace.c
@@ -56,6 +56,7 @@ static void __hot prepare_ftrace_return(unsigned long *parent,
 }
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
 
+#ifdef CONFIG_FUNCTION_TRACER
 void notrace __hot ftrace_function_trampoline(unsigned long parent,
 				unsigned long self_addr,
 				unsigned long org_sp_gr3)
@@ -85,4 +86,18 @@ void notrace __hot ftrace_function_trampoline(unsigned long parent,
 	}
 #endif
 }
+#endif /* CONFIG_FUNCTION_TRACER */
+#if (defined CONFIG_FTRACE_SYSCALLS) && (defined CONFIG_64BIT)
+extern const unsigned int sys_call_table64[];
 
+unsigned long __init arch_syscall_addr(int nr, bool compat)
+{
+#ifdef CONFIG_COMPAT
+	if (compat)
+		return (unsigned long)sys_call_table[nr];
+#endif /* CONFIG_COMPAT */
+
+	return (unsigned long)sys_call_table64[nr];
+}
+
+#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_64BIT */
-- 
2.7.4

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This file was only including module.h for exception table related
functions.  We've now separated that content out into its own file
"extable.h" so now move over to that and avoid all the extra header
content in module.h that we don't really need to compile this file.

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---

[see: https://lkml.org/lkml/2016/7/24/224 for additional context if needed]

 arch/parisc/mm/fault.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 163af2c31d76..a67519b79504 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -14,7 +14,7 @@
 #include <linux/ptrace.h>
 #include <linux/sched.h>
 #include <linux/interrupt.h>
-#include <linux/module.h>
+#include <linux/extable.h>
 #include <linux/uaccess.h>
 
 #include <asm/traps.h>
-- 
2.8.4

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Drop BROKEN_RODATA config option
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PARISC was the only architecture which selected the BROKEN_RODATA config
option. Drop it and remove the special handling from init.h as well.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index af12c2d..f8dc10d 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -15,7 +15,6 @@ config PARISC
 	select HAVE_PERF_EVENTS
 	select GENERIC_ATOMIC64 if !64BIT
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
-	select BROKEN_RODATA
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PCI_IOMAP
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
diff --git a/include/linux/init.h b/include/linux/init.h
index 6935d02..5a3321a 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -41,22 +41,11 @@
    discard it in modules) */
 #define __init		__section(.init.text) __cold notrace
 #define __initdata	__section(.init.data)
-#define __initconst	__constsection(.init.rodata)
+#define __initconst	__section(.init.rodata)
 #define __exitdata	__section(.exit.data)
 #define __exit_call	__used __section(.exitcall.exit)
 
 /*
- * Some architecture have tool chains which do not handle rodata attributes
- * correctly. For those disable special sections for const, so that other
- * architectures can annotate correctly.
- */
-#ifdef CONFIG_BROKEN_RODATA
-#define __constsection(x)
-#else
-#define __constsection(x) __section(x)
-#endif
-
-/*
  * modpost check for section mismatches during the kernel build.
  * A section mismatch happens when there are references from a
  * code or data section to an init section (both code or data).
@@ -75,7 +64,7 @@
  */
 #define __ref            __section(.ref.text) noinline
 #define __refdata        __section(.ref.data)
-#define __refconst       __constsection(.ref.rodata)
+#define __refconst       __section(.ref.rodata)
 
 #ifdef MODULE
 #define __exitused
@@ -88,10 +77,10 @@
 /* Used for MEMORY_HOTPLUG */
 #define __meminit        __section(.meminit.text) __cold notrace
 #define __meminitdata    __section(.meminit.data)
-#define __meminitconst   __constsection(.meminit.rodata)
+#define __meminitconst   __section(.meminit.rodata)
 #define __memexit        __section(.memexit.text) __exitused __cold notrace
 #define __memexitdata    __section(.memexit.data)
-#define __memexitconst   __constsection(.memexit.rodata)
+#define __memexitconst   __section(.memexit.rodata)
 
 /* For assembly routines */
 #define __HEAD		.section	".head.text","ax"
diff --git a/init/Kconfig b/init/Kconfig
index cac3f09..cc20d7a 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -2108,12 +2108,6 @@ config PADATA
 	depends on SMP
 	bool
 
-# Can be selected by architectures with broken toolchains
-# that get confused by correct const<->read_only section
-# mappings
-config BROKEN_RODATA
-	bool

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Check return value of smp_boot_one_cpu()
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Check return value of smp_boot_one_cpu() whether CPU could be brought up.

Reported-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index c2a9cc5..75dab28 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -412,8 +412,8 @@ void smp_cpus_done(unsigned int cpu_max)
 
 int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 {
-	if (cpu != 0 && cpu < parisc_max_cpus)
-		smp_boot_one_cpu(cpu, tidle);
+	if (cpu != 0 && cpu < parisc_max_cpus && smp_boot_one_cpu(cpu, tidle))
+		return -ENOSYS;
 
 	return cpu_online(cpu) ? 0 : -ENOSYS;
 }
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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] parisc: Update comment regarding implementation of copy_user_page_asm
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The attached patch describes the current implementation of =
copy_user_page_asm.  It is possible to implement
this routine using either the kernel page mappings or equivalent =
aliases.  I tested both and decided the former
was more efficient.

Signed-off-by: John David Anglin <dave.anglin@bell.net>



--Apple-Mail-20-14856818
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diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index b743a80..1250c02 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -573,11 +573,17 @@ ENDPROC(copy_page_asm)
 	.endm
 
 	/*
-	 * We can't do this since copy_user_page is used to bring in
-	 * file data that might have instructions. Since the data would
-	 * then need to be flushed out so the i-fetch can see it, it
-	 * makes more sense to just copy through the kernel translation
-	 * and flush it.
+	 * copy_user_page_asm() performs a page copy using mappings
+	 * equivalent to the user page mappings.  It can be used to
+	 * implement copy_user_page() but unfortunately both the `from'
+	 * and `to' pages need to be flushed through mappings equivalent
+	 * to the user mappings after the copy because the kernel accesses
+	 * the `from' page through the kmap kernel mapping and the `to'
+	 * page needs to be flushed since code can be copied.  As a
+	 * result, this implementation is less efficient than the simpler
+	 * copy using the kernel mapping.  It only needs the `from' page
+	 * to flushed via the user mapping.  The kunmap routines handle
+	 * the flushes needed for the kernel mapping.
 	 *
 	 * I'm still keeping this around because it may be possible to
 	 * use it if more information is passed into copy_user_page().

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From - Thu Nov 08 21:39:09 2018
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.kernel.next,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: linux-next: manual merge of the akpm-current tree with the
 parisc-hd tree
Date: Wed, 21 Sep 2016 15:20:06 +1000
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        Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: Andrew Morton <akpm@linux-foundation.org>,
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Hi Andrew,

Today's linux-next merge of the akpm-current tree got a conflict in:

  arch/parisc/Kconfig

between commit:

  b5d5cf2b8a68 ("parisc: Drop BROKEN_RODATA config option")

from the parisc-hd tree and commit:

  7b4d24d8c01d ("atomic64: no need for CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE")

from the akpm-current tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc arch/parisc/Kconfig
index f8dc10dcf292,8a96bdcc3807..000000000000
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@@ -14,7 -14,7 +14,6 @@@ config PARIS
  	select BUILDTIME_EXTABLE_SORT
  	select HAVE_PERF_EVENTS
  	select GENERIC_ATOMIC64 if !64BIT
- 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 -	select BROKEN_RODATA
  	select GENERIC_IRQ_PROBE
  	select GENERIC_PCI_IOMAP
  	select ARCH_HAVE_NMI_SAFE_CMPXCHG

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Report trap type as human readable string
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When faulting on some trap, the kernel currently reports in dmesg:

 do_page_fault() command='perl' type=6 address=0xbe400403 in libcrypt-2.24.so[f9086000+9000]
 vm_start = 0x00922000, vm_end = 0x00aed000

With this change the trap type additionally gets reported as human readable
string which makes it simpler to recognize the type of problem:

 do_page_fault() command='perl' type=6 address=0xbe400403 in libcrypt-2.24.so[f9086000+9000]
 Instruction TLB miss fault, vm_start = 0x00922000, vm_end = 0x00aed000

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 16dbe81..bdbd73b 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -168,6 +168,43 @@ int fixup_exception(struct pt_regs *regs)
 }
 
 /*
+ * parisc hardware trap list
+ *
+ * Documented in section 3 "Addressing and Access Control" of the
+ * "PA-RISC 1.1 Architecture and Instruction Set Reference Manual"
+ * https://parisc.wiki.kernel.org/index.php/File:Pa11_acd.pdf
+ *
+ * For implementation see handle_interruption() in traps.c
+ */
+static const char * const trap_description[] = {
+	[1] "High-priority machine check (HPMC)",
+	[2] "Power failure interrupt",
+	[3] "Recovery counter trap",
+	[5] "Low-priority machine check",
+	[6] "Instruction TLB miss fault",
+	[7] "Instruction access rights / protection trap",
+	[8] "Illegal instruction trap",
+	[9] "Break instruction trap",
+	[10] "Privileged operation trap",
+	[11] "Privileged register trap",
+	[12] "Overflow trap",
+	[13] "Conditional trap",
+	[14] "FP Assist Exception trap",
+	[15] "Data TLB miss fault",
+	[16] "Non-access ITLB miss fault",
+	[17] "Non-access DTLB miss fault",
+	[18] "Data memory protection/unaligned access trap",
+	[19] "Data memory break trap",
+	[20] "TLB dirty bit trap",
+	[21] "Page reference trap",
+	[22] "Assist emulation trap",
+	[25] "Taken branch trap",
+	[26] "Data memory access rights trap",
+	[27] "Data memory protection ID trap",
+	[28] "Unaligned data reference trap",
+};
+
+/*
  * Print out info about fatal segfaults, if the show_unhandled_signals
  * sysctl is set:
  */
@@ -176,6 +213,8 @@ show_signal_msg(struct pt_regs *regs, unsigned long code,
 		unsigned long address, struct task_struct *tsk,
 		struct vm_area_struct *vma)
 {
+	const char *trap_name = NULL;
+
 	if (!unhandled_signal(tsk, SIGSEGV))
 		return;
 
@@ -186,6 +225,12 @@ show_signal_msg(struct pt_regs *regs, unsigned long code,
 	pr_warn("do_page_fault() command='%s' type=%lu address=0x%08lx",
 	    tsk->comm, code, address);
 	print_vma_addr(KERN_CONT " in ", regs->iaoq[0]);
+
+	if (code < ARRAY_SIZE(trap_description))
+		trap_name = trap_description[code];
+	if (trap_name)
+		pr_warn(" %s%c", trap_name, vma ? ',':'\n');
+
 	if (vma)
 		pr_warn(" vm_start = 0x%08lx, vm_end = 0x%08lx\n",
 				vma->vm_start, vma->vm_end);
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix self-detected CPU stall warnings on Mako machines
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The config option HAVE_UNSTABLE_SCHED_CLOCK is set automatically when compiling
for SMP. There is no need to clear the stable-clock flag via
clear_sched_clock_stable() when starting secondary CPUs, and even worse,
clearing it triggers wrong self-detected CPU stall warnings on 64bit Mako
machines.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.7+

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 4b0b963..9b63b87 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -226,12 +226,6 @@ void __init start_cpu_itimer(void)
 	unsigned int cpu = smp_processor_id();
 	unsigned long next_tick = mfctl(16) + clocktick;
 
-#if defined(CONFIG_HAVE_UNSTABLE_SCHED_CLOCK) && defined(CONFIG_64BIT)
-	/* With multiple 64bit CPUs online, the cr16's are not syncronized. */
-	if (cpu != 0)
-		clear_sched_clock_stable();
-#endif

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.mm
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I tried running the debian 4.7.5 kernel on our parisc debian buildd servers,
but when it reaches some load I usually see after some time this kernel crash:

[ 2142.421978] ------------[ cut here ]------------
[ 2142.422194] kernel BUG at /build/linux/linux-4.7.5/mm/vmscan.c:1395!
[ 2142.422714] CPU: 0 PID: 47 Comm: kswapd1 Not tainted 4.7.0-1-parisc64-smp #1 Debian 4.7.5-1
[ 2142.423047] task: 00000000bb2761b0 ti: 00000000bb27c000 task.ti: 00000000bb27c000
[ 2142.431931] 
[ 2142.432001]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[ 2142.442117] PSW: 00001000000001001111111100001110 Not tainted
[ 2142.442329] r00-03  000000ff0804ff0e 0000000040cef520 000000004041ad6c 00000000bb27c530
[ 2142.451906] r04-07  0000000040cd1520 00000000bf2ac010 00000000bb27c5f0 0000000000000001
[ 2142.461626] r08-11  00000000bf2ac000 0000000000000010 0000000000000020 0000000000000001
[ 2142.493204] r12-15  0000000000000000 0000000000000001 00000000bb27c3f8 00000000bb27c410
[ 2142.634877] r16-19  00000000bb27c254 0000000041a5f260 00000000bb27c280 0000000000000000
[ 2142.635189] r20-23  0000000000000001 0000000000000000 00000000bb27c254 00000000bb27c410
[ 2142.778062] r24-27  00000000bb27c620 000000004041aa38 000000004041ad6c 0000000040cd1520
[ 2142.922203] r28-31  ffffffffffffffea 00000000bb27c690 00000000bb27c620 0000000000040048
[ 2143.065747] sr00-03  000000000325d000 000000000325d000 0000000000000000 000000000325d000
[ 2143.209974] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 2143.210245] 
[ 2143.353754] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004041ae58 000000004041ae5c
[ 2143.354040]  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000001ec9f27c6f0
[ 2143.497716]  CPU:        0   CR30: 00000000bb27c000 CR31: ffffff7fffffffff
[ 2143.642443]  ORIG_R28: 00000000bb27c830
[ 2143.642625]  IAOQ[0]: isolate_lru_pages.isra.20+0x1d8/0x2c0
[ 2143.786212]  IAOQ[1]: isolate_lru_pages.isra.20+0x1dc/0x2c0
[ 2143.786408]  RP(r2): isolate_lru_pages.isra.20+0xec/0x2c0
[ 2143.930262] Backtrace:
[ 2143.930371]  [<000000004041dddc>] shrink_active_list+0x184/0x720
[ 2144.073396]  [<0000000040420938>] kswapd+0x6d8/0x1008
[ 2144.073600]  [<00000000402c9864>] __wake_up_locked+0x84/0xa8
[ 2144.217657]  [<000000004028fa84>] kthread+0x1ec/0x248
[ 2144.217848]  [<0000000040205020>] end_fault_vector+0x20/0xc0
[ 2144.360930]  [<000000004021e494>] execute_on_irq_stack+0x54/0x108
[ 2144.361148]  [<0000000040300a98>] rcu_irq_exit+0x40/0xa0
[ 2144.505159]  [<000000004025d1d8>] irq_exit+0x108/0x120
[ 2144.505345]  [<000000004021faa4>] do_cpu_irq_mask+0x2bc/0x4a8
[ 2144.648511]  [<0000000040206074>] intr_return+0x0/0xc
[ 2144.648700]  [<00000000402d9e50>] cpuacct_charge+0x50/0xe8
[ 2144.793737]  [<00000000402b4fa0>] check_preempt_wakeup+0x260/0x2d0
[ 2144.793962]  [<00000000402a3390>] check_preempt_curr+0x120/0x128
[ 2144.936497]  [<00000000402b47a4>] update_curr+0x18c/0x2d8
[ 2145.080725]  [<00000000402d9e50>] cpuacct_charge+0x50/0xe8
[ 2145.080922]  [<00000000402b47a4>] update_curr+0x18c/0x2d8
[ 2145.225161] 
[ 2145.225240] CPU: 0 PID: 47 Comm: kswapd1 Not tainted 4.7.0-1-parisc64-smp #1 Debian 4.7.5-1
[ 2145.229139] Backtrace:
[ 2145.229139]  [<000000004021c738>] show_stack+0x68/0x80
[ 2145.229139]  [<00000000406e937c>] dump_stack+0xec/0x168
[ 2145.229139]  [<000000004021ca04>] die_if_kernel+0x25c/0x430
[ 2145.229139]  [<000000004021dd90>] handle_interruption+0xc98/0xcc0
[ 2145.229139] 
[ 2145.657495] ---[ end trace bf38fbc7135d5765 ]---


Once I could capture this warning as well (which crashed the machine later on):


[  559.048134] list_add corruption. next->prev should be prev (00000000ba709020), but was 0000000042c98860. (next=0000000043604ee0).
[  559.048999] ------------[ cut here ]------------
[  559.049227] WARNING: CPU: 2 PID: 17367 at /build/linux/linux-4.7.5/lib/list_debug.c:29 __list_add+0x11c/0x128
[  559.058096] Modules linked in: autofs4 nfsd auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc sg ext4 ecb crc16 jbd2 crc32c_generic mbcache sr_mod cdrom sd_mod sym53c8xx scsi_transport_spi scsi_mod tulip
[  559.077491] CPU: 2 PID: 17367 Comm: cp Not tainted 4.7.0-1-parisc64-smp #2 Debian 4.7.5-1
[  559.087139] task: 00000000bb06e370 ti: 00000000b8cb0000 task.ti: 00000000b8cb0000
[  559.120020] 
[  559.120084]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[  559.120254] PSW: 00001000000001001111100000001110 Not tainted
[  559.260535] r00-03  000000ff0804f80e 0000000040d42520 000000004071a118 00000000b8cb0d80
[  559.404336] r04-07  0000000040cd1520 00000000420b2e60 00000000ba709020 0000000043604ee0
[  559.404647] r08-11  0000000000000002 0000000000000001 0000000000000000 0000000040c4d940
[  559.547814] r12-15  0000000000000000 00000000420b2e40 000000000800000f 0000000000000000
[  559.691424] r16-19  0000000000000000 0000000000000000 00000000b8cb0650 000000000800000e
[  559.835467] r20-23  0000000000000001 000000000800000e 0000000000000174 0000000000000174
[  559.979173] r24-27  00000000b8cb1370 00000000406fdaa8 000000004070be24 0000000040cd1520
[  559.979457] r28-31  0000000000000075 00000000b8cb13e0 00000000b8cb0e20 0000000000000075
[  560.121995] sr00-03  0000000003e8c800 0000000000000000 0000000000000000 0000000003e8c800
[  560.265947] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[  560.410434] 
[  560.410503] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004071a11c 000000004071a120
[  560.554676]  IIR: 03ffe01f    ISR: 0000000010240000  IOR: 00000003d47518d0
[  560.554917]  CPU:        2   CR30: 00000000b8cb0000 CR31: fffffffffff3ffff
[  560.697554]  ORIG_R28: 0000000040cf4520
[  560.697701]  IAOQ[0]: __list_add+0x11c/0x128
[  560.842128]  IAOQ[1]: __list_add+0x120/0x128
[  560.842285]  RP(r2): __list_add+0x118/0x128
[  560.986271] Backtrace:
[  560.986388]  [<000000004040fee0>] __pagevec_lru_add_fn+0x1c8/0x2c8
[  561.130001]  [<000000004041076c>] pagevec_lru_move_fn+0x1c4/0x288
[  561.130221]  [<0000000040410aa8>] __lru_cache_add+0x118/0x158
[  561.274461]  [<00000000404120ac>] lru_cache_add+0x64/0x80
[  561.274664]  [<00000000403ef490>] add_to_page_cache_lru+0x148/0x250
[  561.417955]  [<00000000403f114c>] pagecache_get_page+0x2a4/0x600
[  561.418174]  [<00000000403f2a40>] grab_cache_page_write_begin+0x90/0xe0
[  561.564306]  [<0000000028984080>] ext4_da_write_begin+0x130/0x7e0 [ext4]
[  561.705674]  [<00000000403f2e28>] generic_perform_write+0x158/0x370
[  561.705905]  [<00000000403f4ac8>] __generic_file_write_iter+0x260/0x2d8
[  561.849151]  [<000000002896fdf4>] ext4_file_write_iter+0x10c/0x548 [ext4]
[  561.992629]  [<00000000404ba758>] new_sync_write+0x168/0x1d0
[  561.992839]  [<00000000404ba8a4>] __vfs_write+0xe4/0xf0
[  562.136521]  [<00000000404bc05c>] vfs_write+0xfc/0x278
[  562.136710]  [<00000000404be4f4>] SyS_write+0xcc/0x170
[  562.279474]  [<0000000040207024>] syscall_exit+0x0/0x14
[  562.279655] 
[  562.279721] ---[ end trace bce15645442c2913 ]---


I see there was one commit pushed into the stable tree:
mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page()
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=22f2ac51b6d643666f4db093f13144f773ff3f3a

Might this patch help to fix the issues as well?
If not, maybe someone has an idea based on the traces above?
I don't think it's triggered due to parisc specific changes...

Thanks,
Helge
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From - Thu Nov 08 21:39:10 2018
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Guten Tag, wie geht es Ihnen heute? Ich habe Ihre E-Mail-Kontakt aus Ihrem Land Business Directory und beschlossen, mit Ihnen in Verbindung zu diesem Business-Vorschlag. Ich bin Herr Chris Williams der Investment Banking Abteilung der Credit Suisse Bank One Cabot Square, London E14 4QJ, Großbritannien. Ich bin Kontaktaufnahme mit Ihnen in Bezug auf ein Geschäft Vorschlag, die von einer immensen Vorteil für uns beide sein wird.

In meiner Abteilung, entdeckte ich eine verlassene Summe von £ 17,5 Mio. GBP (Siebzehn Millionen fünfhunderttausend britische Pfund Sterling) in einem Konto, das zu einem unserer ausländischen Kunden verstorbenen Herrn Brodskij Nikolai, ein russischer Geschäftsmann, der ein Opfer war, gehört der Malaysia Airlines Flight 370 (MH370 / MAS370), die im Süden der indische Ozean auf 8. März 2014 auf dem Weg von Kuala Lumpur international Airport abgestürzt zu Beijing Capital International Airport zu töten alle an Bord.

Informieren Sie sich über den untenstehenden Link für die Passagierliste:


http://online.wsj.com/news/articles/SB10001424052702303369904579427230127866184

MR Brodskij Nikolai Nummer 7 auf der Liste, Seit seinem Tod unserer Bank hat für die nächsten Angehörigen zu kommen für die Behauptung seiner Gelder und Güter schätzten die Summe von £ 17,5 Mio. GBP, aber niemand hat so, ich persönlich getan gewartet , waren nicht erfolgreich bei der Suche nach einer seiner Verwandten. Ich suche Ihre Zustimmung an Sie an die Bank, wie die nächsten Angehörigen des Verstorbenen zu präsentieren, so dass die Erlöse aus diesem Konto bei £ 17,5 Mio. GBP an Sie gezahlt werden bewertet.


Der Deal wird in diesem Verhältnis aufgeteilt: 55% für mich und 45% zu Ihnen. Ich habe in meinem Besitz alle notwendigen und wichtigen Dokumente, die in diesem Geschäft verwendet werden kann. Ich brauche Ihre ehrliche Zusammenarbeit, Verschwiegenheit und Vertrauen, damit wir sehen diese Verhandlung durch. Ich garantiere Ihnen 100% Erfolg in diesem Geschäft, wenden Sie sich bitte sicher sein, dass Sie das Angebot unter einer legitimen Anordnung, die Sie aus der Verletzung des Gesetzes sowohl hier als auch in Großbritannien und in Ihrem Land zu schützen wird ausgeführt.

Wenn Sie in der Lage, dem Umgang mit diesem Angebot sind, bitte zurück zu mir mit folgenden Angaben, damit wir fortfahren:

1. Ihr vollständiger Name:
2. Telefonnummer:
3. Kontakt-Adresse:
4. Alter:
5. Geschlecht:
6. Beruf:
7. Ihre Nationalität:


Nachdem durch eine methodische Suche gegangen, entschied ich mich, Sie zu kontaktieren hoffen, dass Sie diesen Vorschlag interessant, Bitte auf Ihrer Bestätigung dieser Nachricht und geben Sie Ihr Interesse, ich will dich mit mehr Informationen liefern zu finden.

Ihre Zustimmung zu dieser E-Mail und Business-Vorschlag wird sehr geschätzt werden.

Freundliche Grüße,
Chris Williams
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Scrolling helpers scrup and scrdown both accept 'top' and 'bottom' as
unsigned int. Number of lines 'nr' is accepted as int, but all callers
pass down unsigned too. So change the type of 'nr' to unsigned too.
Now, promote unsigned int from the helpers up to the con_scroll
hook which actually accepted all those as signed int.

Next, the 'dir' parameter can have only two values and we define
constants for that: SM_UP and SM_DOWN. Switch them to enum and do
proper type checking on 'dir' too.

Finally, document the behaviour of the hook.

Signed-off-by: Jiri Slaby <jslaby-AlSwsSmVLrQ@public.gmane.org>
Cc: Thomas Winischhofer <thomas-8tQO0IXuy4gnETEX8uN03g@public.gmane.org>
Cc: Tomi Valkeinen <tomi.valkeinen-l0cyMroinI0@public.gmane.org>
Cc: "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
Cc: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
Cc: <linux-fbdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Cc: <linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Cc: <linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
---
 drivers/tty/vt/vt.c                     |  6 ++++--
 drivers/usb/misc/sisusbvga/sisusb_con.c | 18 ++++++++++--------
 drivers/video/console/fbcon.c           | 18 ++++++++----------
 drivers/video/console/mdacon.c          |  7 ++++---
 drivers/video/console/newport_con.c     |  8 ++++----
 drivers/video/console/sticon.c          |  7 ++++---
 drivers/video/console/vgacon.c          | 12 +++++-------
 include/linux/console.h                 | 16 +++++++++++-----
 8 files changed, 50 insertions(+), 42 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index e2cad4c2ba5a..a0ccb3950a50 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -315,7 +315,8 @@ void schedule_console_callback(void)
 	schedule_work(&console_work);
 }
 
-static void scrup(struct vc_data *vc, unsigned int t, unsigned int b, int nr)
+static void scrup(struct vc_data *vc, unsigned int t, unsigned int b,
+		unsigned int nr)
 {
 	unsigned short *d, *s;
 
@@ -332,7 +333,8 @@ static void scrup(struct vc_data *vc, unsigned int t, unsigned int b, int nr)
 		    vc->vc_size_row * nr);
 }
 
-static void scrdown(struct vc_data *vc, unsigned int t, unsigned int b, int nr)
+static void scrdown(struct vc_data *vc, unsigned int t, unsigned int b,
+		unsigned int nr)
 {
 	unsigned short *s;
 	unsigned int step;
diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c
index 460cebf322e3..6331965daa0b 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -808,9 +808,10 @@ sisusbcon_cursor(struct vc_data *c, int mode)
 	mutex_unlock(&sisusb->lock);
 }
 
-static int
+static bool
 sisusbcon_scroll_area(struct vc_data *c, struct sisusb_usb_data *sisusb,
-					int t, int b, int dir, int lines)
+		unsigned int t, unsigned int b, enum con_scroll dir,
+		unsigned int lines)
 {
 	int cols = sisusb->sisusb_num_columns;
 	int length = ((b - t) * cols) * 2;
@@ -852,8 +853,9 @@ sisusbcon_scroll_area(struct vc_data *c, struct sisusb_usb_data *sisusb,
 }
 
 /* Interface routine */
-static int
-sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
+static bool
+sisusbcon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int lines)
 {
 	struct sisusb_usb_data *sisusb;
 	u16 eattr = c->vc_video_erase_char;
@@ -870,17 +872,17 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
 	 */
 
 	if (!lines)
-		return 1;
+		return true;
 
 	sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
 	if (!sisusb)
-		return 0;
+		return false;
 
 	/* sisusb->lock is down */
 
 	if (sisusb_is_inactive(c, sisusb)) {
 		mutex_unlock(&sisusb->lock);
-		return 0;
+		return false;
 	}
 
 	/* Special case */
@@ -971,7 +973,7 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
 
 	mutex_unlock(&sisusb->lock);
 
-	return 1;
+	return true;
 }
 
 /* Interface routine */
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index b87f5cfdaea5..a44f5627b82a 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -164,8 +164,6 @@ static void fbcon_putcs(struct vc_data *vc, const unsigned short *s,
 			int count, int ypos, int xpos);
 static void fbcon_clear_margins(struct vc_data *vc, int bottom_only);
 static void fbcon_cursor(struct vc_data *vc, int mode);
-static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
-			int count);
 static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx,
 			int height, int width);
 static int fbcon_switch(struct vc_data *vc);
@@ -1795,15 +1793,15 @@ static inline void fbcon_softback_note(struct vc_data *vc, int t,
 	softback_curr = softback_in;
 }
 
-static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
-			int count)
+static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int count)
 {
 	struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
 	struct display *p = &fb_display[vc->vc_num];
 	int scroll_partial = info->flags & FBINFO_PARTIAL_PAN_OK;
 
 	if (fbcon_is_inactive(vc, info))
-		return -EINVAL;
+		return true;
 
 	fbcon_cursor(vc, CM_ERASE);
 
@@ -1831,7 +1829,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
 							(b - count)),
 				    vc->vc_video_erase_char,
 				    vc->vc_size_row * count);
-			return 1;
+			return true;
 			break;
 
 		case SCROLL_WRAP_MOVE:
@@ -1903,7 +1901,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
 							(b - count)),
 				    vc->vc_video_erase_char,
 				    vc->vc_size_row * count);
-			return 1;
+			return true;
 		}
 		break;
 
@@ -1922,7 +1920,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
 							t),
 				    vc->vc_video_erase_char,
 				    vc->vc_size_row * count);
-			return 1;
+			return true;
 			break;
 
 		case SCROLL_WRAP_MOVE:
@@ -1992,10 +1990,10 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
 							t),
 				    vc->vc_video_erase_char,
 				    vc->vc_size_row * count);
-			return 1;
+			return true;
 		}
 	}
-	return 0;
+	return false;
 }
 
 
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index 24fe55134eb5..d0d427a2f1a3 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -501,12 +501,13 @@ static void mdacon_cursor(struct vc_data *c, int mode)
 	}
 }
 
-static int mdacon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
+static bool mdacon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int lines)
 {
 	u16 eattr = mda_convert_attr(c->vc_video_erase_char);
 
 	if (!lines)
-		return 0;
+		return false;
 
 	if (lines > c->vc_rows)   /* maximum realistic size */
 		lines = c->vc_rows;
@@ -527,7 +528,7 @@ static int mdacon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
 		break;
 	}
 
-	return 0;
+	return false;
 }
 
 
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index e3b9521e4ec3..1e11614322fe 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -574,8 +574,8 @@ static int newport_font_set(struct vc_data *vc, struct console_font *font, unsig
 	return newport_set_font(vc->vc_num, font);
 }
 
-static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
-			  int lines)
+static bool newport_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int lines)
 {
 	int count, x, y;
 	unsigned short *s, *d;
@@ -595,7 +595,7 @@ static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
 					    (vc->vc_color & 0xf0) >> 4);
 		}
 		npregs->cset.topscan = (topscan - 1) & 0x3ff;
-		return 0;
+		return false;
 	}
 
 	count = (b - t - lines) * vc->vc_cols;
@@ -670,7 +670,7 @@ static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
 			}
 		}
 	}
-	return 1;
+	return true;
 }
 
 static int newport_dummy(struct vc_data *c)
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 3a10ac19598f..79c9bd8d3025 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -153,12 +153,13 @@ static void sticon_cursor(struct vc_data *conp, int mode)
     }
 }
 
-static int sticon_scroll(struct vc_data *conp, int t, int b, int dir, int count)
+static bool sticon_scroll(struct vc_data *conp, unsigned int t,
+		unsigned int b, enum con_scroll dir, unsigned int count)
 {
     struct sti_struct *sti = sticon_sti;
 
     if (vga_is_gfx)
-        return 0;
+        return false;
 
     sticon_cursor(conp, CM_ERASE);
 
@@ -174,7 +175,7 @@ static int sticon_scroll(struct vc_data *conp, int t, int b, int dir, int count)
 	break;
     }
 
-    return 0;
+    return false;
 }
 
 static void sticon_init(struct vc_data *c, int init)
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 11576611a974..4c54a873452e 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -83,8 +83,6 @@ static int vgacon_blank(struct vc_data *c, int blank, int mode_switch);
 static void vgacon_scrolldelta(struct vc_data *c, int lines);
 static int vgacon_set_origin(struct vc_data *c);
 static void vgacon_save_screen(struct vc_data *c);
-static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
-			 int lines);
 static void vgacon_invert_region(struct vc_data *c, u16 * p, int count);
 static struct uni_pagedir *vgacon_uni_pagedir;
 static int vgacon_refcount;
@@ -1350,17 +1348,17 @@ static void vgacon_save_screen(struct vc_data *c)
 			    c->vc_screenbuf_size > vga_vram_size ? vga_vram_size : c->vc_screenbuf_size);
 }
 
-static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
-			 int lines)
+static bool vgacon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int lines)
 {
 	unsigned long oldo;
 	unsigned int delta;
 
 	if (t || b != c->vc_rows || vga_is_gfx || c->vc_mode != KD_TEXT)
-		return 0;
+		return false;
 
 	if (!vga_hardscroll_enabled || lines >= c->vc_rows / 2)
-		return 0;
+		return false;
 
 	vgacon_restore_screen(c);
 	oldo = c->vc_origin;
@@ -1396,7 +1394,7 @@ static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
 	c->vc_visible_origin = c->vc_origin;
 	vga_set_mem_top(c);
 	c->vc_pos = (c->vc_pos - oldo) + c->vc_origin;
-	return 1;
+	return true;
 }
 
 
diff --git a/include/linux/console.h b/include/linux/console.h
index 3672809234a7..508b012bd5bd 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -28,9 +28,17 @@ struct tty_struct;
 #define VT100ID "\033[?1;2c"
 #define VT102ID "\033[?6c"
 
+enum con_scroll {
+	SM_UP,
+	SM_DOWN,
+};
+
 /**
  * struct consw - callbacks for consoles
  *
+ * @con_scroll: move lines from @top to @bottom in direction @dir by @lines.
+ *		Return true if no generic handling should be done.
+ *		Invoked by csi_M and printing to the console.
  * @con_set_palette: sets the palette of the console to @table (optional)
  * @con_scrolldelta: the contents of the console should be scrolled by @lines.
  *		     Invoked by user. (optional)
@@ -44,7 +52,9 @@ struct consw {
 	void	(*con_putc)(struct vc_data *, int, int, int);
 	void	(*con_putcs)(struct vc_data *, const unsigned short *, int, int, int);
 	void	(*con_cursor)(struct vc_data *, int);
-	int	(*con_scroll)(struct vc_data *, int, int, int, int);
+	bool	(*con_scroll)(struct vc_data *, unsigned int top,
+			unsigned int bottom, enum con_scroll dir,
+			unsigned int lines);
 	int	(*con_switch)(struct vc_data *);
 	int	(*con_blank)(struct vc_data *, int, int);
 	int	(*con_font_set)(struct vc_data *, struct console_font *, unsigned);
@@ -99,10 +109,6 @@ static inline int con_debug_leave(void)
 }
 #endif
 
-/* scroll */
-#define SM_UP       (1)
-#define SM_DOWN     (2)

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Move hpmc stack into page aligned bss section
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Do not reserve space in data section for hpmc stack, instead move it
into the page aligned bss section.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index e158b6f..1bd0e09 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -41,12 +41,12 @@
  */
 
 	.level		1.1
-	.data
 
 #include <asm/assembly.h>
 #include <asm/pdc.h>
 
 #include <linux/linkage.h>
+#include <linux/init.h>
 
 	/*
 	 * stack for os_hpmc, the HPMC handler.
@@ -55,6 +55,7 @@
 	 * IODC requires 7K byte stack.  That leaves 1K byte for os_hpmc.
 	 */
 
+	__PAGE_ALIGNED_BSS
 	.align 4096
 hpmc_stack:
 	.block 16384
@@ -65,6 +66,7 @@ hpmc_stack:
 hpmc_iodc_buf:
 	.block HPMC_IODC_BUF_SIZE
 
+	.section .bss
 	.align 8
 hpmc_raddr:
 	.block 128
@@ -297,9 +299,9 @@ os_hpmc_6:
 	nop
 ENDPROC(os_hpmc)
 .os_hpmc_end:
-	nop
-.data
-.align 4
+
+
+	__INITRODATA
 	.export os_hpmc_size
 os_hpmc_size:
 	.word .os_hpmc_end-.os_hpmc
--
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Add ENTRY_CFI() and ENDPROC_CFI() macros for dwarf debug info and
convert assembly users to new macros.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/linkage.h b/arch/parisc/include/asm/linkage.h
index 0b19a72..67e6b43 100644
--- a/arch/parisc/include/asm/linkage.h
+++ b/arch/parisc/include/asm/linkage.h
@@ -1,6 +1,8 @@
 #ifndef __ASM_PARISC_LINKAGE_H
 #define __ASM_PARISC_LINKAGE_H
 
+#include <asm/dwarf.h>
+
 #ifndef __ALIGN
 #define __ALIGN         .align 4
 #define __ALIGN_STR     ".align 4"
@@ -10,6 +12,8 @@
  * In parisc assembly a semicolon marks a comment while a
  * exclamation mark is used to separate independent lines.
  */
+#define ASM_NL	!
+
 #ifdef __ASSEMBLY__
 
 #define ENTRY(name) \
@@ -26,6 +30,14 @@ name:
 	END(name)
 #endif
 
+#define ENTRY_CFI(name) \
+	ENTRY(name)	ASM_NL\
+	CFI_STARTPROC
+
+#define ENDPROC_CFI(name) \
+	ENDPROC(name)	ASM_NL\
+	CFI_ENDPROC
+
 #endif /* __ASSEMBLY__ */
 
 #endif  /* __ASM_PARISC_LINKAGE_H */
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index baa3d9d..4fcff2d 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -766,7 +766,7 @@ ENTRY(end_fault_vector)
 	 * copy_thread moved args into task save area.
 	 */
 
-ENTRY(ret_from_kernel_thread)
+ENTRY_CFI(ret_from_kernel_thread)
 
 	/* Call schedule_tail first though */
 	BL	schedule_tail, %r2
@@ -782,7 +782,7 @@ ENTRY(ret_from_kernel_thread)
 	copy	%r31, %r2
 	b	finish_child_return
 	nop
-ENDPROC(ret_from_kernel_thread)
+ENDPROC_CFI(ret_from_kernel_thread)
 
 
 	/*
@@ -790,7 +790,7 @@ ENDPROC(ret_from_kernel_thread)
 	 *	struct task_struct *next)
 	 *
 	 * switch kernel stacks and return prev */
-ENTRY(_switch_to)
+ENTRY_CFI(_switch_to)
 	STREG	 %r2, -RP_OFFSET(%r30)
 
 	callee_save_float
@@ -815,7 +815,7 @@ _switch_to_ret:
 	LDREG	-RP_OFFSET(%r30), %r2
 	bv	%r0(%r2)
 	copy	%r26, %r28
-ENDPROC(_switch_to)
+ENDPROC_CFI(_switch_to)
 
 	/*
 	 * Common rfi return path for interruptions, kernel execve, and
@@ -833,7 +833,7 @@ ENDPROC(_switch_to)
 
 	.align	PAGE_SIZE
 
-ENTRY(syscall_exit_rfi)
+ENTRY_CFI(syscall_exit_rfi)
 	mfctl   %cr30,%r16
 	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
 	ldo	TASK_REGS(%r16),%r16
@@ -1037,12 +1037,12 @@ intr_extint:
 
 	b	do_cpu_irq_mask
 	ldo	R%intr_return(%r2), %r2	/* return to intr_return, not here */
-ENDPROC(syscall_exit_rfi)
+ENDPROC_CFI(syscall_exit_rfi)
 
 
 	/* Generic interruptions (illegal insn, unaligned, page fault, etc) */
 
-ENTRY(intr_save)		/* for os_hpmc */
+ENTRY_CFI(intr_save)		/* for os_hpmc */
 	mfsp    %sr7,%r16
 	cmpib,COND(=),n 0,%r16,1f
 	get_stack_use_cr30
@@ -1117,7 +1117,7 @@ skip_save_ior:
 
 	b		handle_interruption
 	ldo		R%intr_check_sig(%r2), %r2
-ENDPROC(intr_save)
+ENDPROC_CFI(intr_save)
 
 
 	/*
@@ -1720,7 +1720,7 @@ dtlb_fault:
 	.endm
 
 	.macro	fork_like name
-ENTRY(sys_\name\()_wrapper)
+ENTRY_CFI(sys_\name\()_wrapper)
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
 	ldo	TASK_REGS(%r1),%r1
 	reg_save %r1
@@ -1728,7 +1728,7 @@ ENTRY(sys_\name\()_wrapper)
 	ldil	L%sys_\name, %r31
 	be	R%sys_\name(%sr4,%r31)
 	STREG	%r28, PT_CR27(%r1)
-ENDPROC(sys_\name\()_wrapper)
+ENDPROC_CFI(sys_\name\()_wrapper)
 	.endm
 
 fork_like clone
@@ -1736,7 +1736,7 @@ fork_like fork
 fork_like vfork
 
 	/* Set the return value for the child */
-ENTRY(child_return)
+ENTRY_CFI(child_return)
 	BL	schedule_tail, %r2
 	nop
 finish_child_return:
@@ -1748,9 +1748,9 @@ finish_child_return:
 	reg_restore %r1
 	b	syscall_exit
 	copy	%r0,%r28
-ENDPROC(child_return)
+ENDPROC_CFI(child_return)
 
-ENTRY(sys_rt_sigreturn_wrapper)
+ENTRY_CFI(sys_rt_sigreturn_wrapper)
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r26
 	ldo	TASK_REGS(%r26),%r26	/* get pt regs */
 	/* Don't save regs, we are going to restore them from sigcontext. */
@@ -1778,9 +1778,9 @@ ENTRY(sys_rt_sigreturn_wrapper)
 	 */
 	bv	%r0(%r2)
 	LDREG	PT_GR28(%r1),%r28  /* reload original r28 for syscall_exit */
-ENDPROC(sys_rt_sigreturn_wrapper)
+ENDPROC_CFI(sys_rt_sigreturn_wrapper)
 
-ENTRY(syscall_exit)
+ENTRY_CFI(syscall_exit)
 	/* NOTE: Not all syscalls exit this way.  rt_sigreturn will exit
 	 * via syscall_exit_rfi if the signal was received while the process
 	 * was running.
@@ -1979,7 +1979,7 @@ syscall_do_resched:
 #else
 	nop
 #endif
-ENDPROC(syscall_exit)
+ENDPROC_CFI(syscall_exit)
 
 
 #ifdef CONFIG_FUNCTION_TRACER
@@ -2023,7 +2023,7 @@ ENDPROC(mcount)
 	.align 8
 	.globl return_to_handler
 	.type  return_to_handler, @function
-ENTRY(return_to_handler)
+ENTRY_CFI(return_to_handler)
 	.proc
 	.callinfo caller,frame=FRAME_SIZE
 	.entry
@@ -2067,7 +2067,7 @@ parisc_return_to_handler:
 	LDREGM -FRAME_SIZE(%sp),%r3
 	.exit
 	.procend
-ENDPROC(return_to_handler)
+ENDPROC_CFI(return_to_handler)
 
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
 
@@ -2076,7 +2076,7 @@ ENDPROC(return_to_handler)
 #ifdef CONFIG_IRQSTACKS
 /* void call_on_stack(unsigned long param1, void *func,
 		      unsigned long new_stack) */
-ENTRY(call_on_stack)
+ENTRY_CFI(call_on_stack)
 	copy	%sp, %r1
 
 	/* Regarding the HPPA calling conventions for function pointers,
@@ -2112,10 +2112,10 @@ ENTRY(call_on_stack)
 	bv	(%rp)
 	LDREG	-68(%sp), %sp
 # endif /* CONFIG_64BIT */
-ENDPROC(call_on_stack)
+ENDPROC_CFI(call_on_stack)
 #endif /* CONFIG_IRQSTACKS */
 
-get_register:
+ENTRY_CFI(get_register)
 	/*
 	 * get_register is used by the non access tlb miss handlers to
 	 * copy the value of the general register specified in r8 into
@@ -2192,9 +2192,10 @@ get_register:
 	copy    %r30,%r1
 	bv      %r0(%r25)    /* r31 */
 	copy    %r31,%r1
+ENDPROC_CFI(get_register)
 
 
-set_register:
+ENTRY_CFI(set_register)
 	/*
 	 * set_register is used by the non access tlb miss handlers to
 	 * copy the value of r1 into the general register specified in
@@ -2266,4 +2267,5 @@ set_register:
 	copy    %r1,%r30
 	bv      %r0(%r25)    /* r31 */
 	copy    %r1,%r31
+ENDPROC_CFI(set_register)
 
diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index 8b87020..0fbd0a0 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -83,7 +83,7 @@ END(hpmc_pim_data)
 	.text
 
 	.import intr_save, code
-ENTRY(os_hpmc)
+ENTRY_CFI(os_hpmc)
 .os_hpmc:
 
 	/*
@@ -299,7 +299,7 @@ os_hpmc_6:
 
 	b .
 	nop
-ENDPROC(os_hpmc)
+ENDPROC_CFI(os_hpmc)
 .os_hpmc_end:
 
 
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index b743a80..b508802 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -41,7 +41,7 @@
 	.text
 	.align	128
 
-ENTRY(flush_tlb_all_local)
+ENTRY_CFI(flush_tlb_all_local)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -190,11 +190,11 @@ fdtdone:
 
 	.exit
 	.procend
-ENDPROC(flush_tlb_all_local)
+ENDPROC_CFI(flush_tlb_all_local)
 
 	.import cache_info,data
 
-ENTRY(flush_instruction_cache_local)
+ENTRY_CFI(flush_instruction_cache_local)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -257,11 +257,11 @@ fisync:
 	.exit
 
 	.procend
-ENDPROC(flush_instruction_cache_local)
+ENDPROC_CFI(flush_instruction_cache_local)
 
 
 	.import cache_info, data
-ENTRY(flush_data_cache_local)
+ENTRY_CFI(flush_data_cache_local)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -325,7 +325,7 @@ fdsync:
 	.exit
 
 	.procend
-ENDPROC(flush_data_cache_local)
+ENDPROC_CFI(flush_data_cache_local)
 
 	.align	16
 
@@ -356,7 +356,7 @@ ENDPROC(flush_data_cache_local)
 
 /* Clear page using kernel mapping.  */
 
-ENTRY(clear_page_asm)
+ENTRY_CFI(clear_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -422,11 +422,11 @@ ENTRY(clear_page_asm)
 	.exit
 
 	.procend
-ENDPROC(clear_page_asm)
+ENDPROC_CFI(clear_page_asm)
 
 /* Copy page using kernel mapping.  */
 
-ENTRY(copy_page_asm)
+ENTRY_CFI(copy_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -540,7 +540,7 @@ ENTRY(copy_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_page_asm)
+ENDPROC_CFI(copy_page_asm)
 
 /*
  * NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -586,7 +586,7 @@ ENDPROC(copy_page_asm)
 	 *
 	 */
 
-ENTRY(copy_user_page_asm)
+ENTRY_CFI(copy_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -742,9 +742,9 @@ ENTRY(copy_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC_CFI(copy_user_page_asm)
 
-ENTRY(clear_user_page_asm)
+ENTRY_CFI(clear_user_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -828,9 +828,9 @@ ENTRY(clear_user_page_asm)
 	.exit
 
 	.procend
-ENDPROC(clear_user_page_asm)
+ENDPROC_CFI(clear_user_page_asm)
 
-ENTRY(flush_dcache_page_asm)
+ENTRY_CFI(flush_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -904,9 +904,9 @@ ENTRY(flush_dcache_page_asm)
 	.exit
 
 	.procend
-ENDPROC(flush_dcache_page_asm)
+ENDPROC_CFI(flush_dcache_page_asm)
 
-ENTRY(flush_icache_page_asm)
+ENTRY_CFI(flush_icache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -982,9 +982,9 @@ ENTRY(flush_icache_page_asm)
 	.exit
 
 	.procend
-ENDPROC(flush_icache_page_asm)
+ENDPROC_CFI(flush_icache_page_asm)
 
-ENTRY(flush_kernel_dcache_page_asm)
+ENTRY_CFI(flush_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -1025,9 +1025,9 @@ ENTRY(flush_kernel_dcache_page_asm)
 	.exit
 
 	.procend
-ENDPROC(flush_kernel_dcache_page_asm)
+ENDPROC_CFI(flush_kernel_dcache_page_asm)
 
-ENTRY(purge_kernel_dcache_page_asm)
+ENTRY_CFI(purge_kernel_dcache_page_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -1067,9 +1067,9 @@ ENTRY(purge_kernel_dcache_page_asm)
 	.exit
 
 	.procend
-ENDPROC(purge_kernel_dcache_page_asm)
+ENDPROC_CFI(purge_kernel_dcache_page_asm)
 
-ENTRY(flush_user_dcache_range_asm)
+ENTRY_CFI(flush_user_dcache_range_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -1088,9 +1088,9 @@ ENTRY(flush_user_dcache_range_asm)
 	.exit
 
 	.procend
-ENDPROC(flush_user_dcache_range_asm)
+ENDPROC_CFI(flush_user_dcache_range_asm)
 
-ENTRY(flush_kernel_dcache_range_asm)
+ENTRY_CFI(flush_kernel_dcache_range_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -1110,9 +1110,9 @@ ENTRY(flush_kernel_dcache_range_asm)
 	.exit
 
 	.procend
-ENDPROC(flush_kernel_dcache_range_asm)
+ENDPROC_CFI(flush_kernel_dcache_range_asm)
 
-ENTRY(flush_user_icache_range_asm)
+ENTRY_CFI(flush_user_icache_range_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -1131,9 +1131,9 @@ ENTRY(flush_user_icache_range_asm)
 	.exit
 
 	.procend
-ENDPROC(flush_user_icache_range_asm)
+ENDPROC_CFI(flush_user_icache_range_asm)
 
-ENTRY(flush_kernel_icache_page)
+ENTRY_CFI(flush_kernel_icache_page)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -1174,9 +1174,9 @@ ENTRY(flush_kernel_icache_page)
 	.exit
 
 	.procend
-ENDPROC(flush_kernel_icache_page)
+ENDPROC_CFI(flush_kernel_icache_page)
 
-ENTRY(flush_kernel_icache_range_asm)
+ENTRY_CFI(flush_kernel_icache_range_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -1194,13 +1194,13 @@ ENTRY(flush_kernel_icache_range_asm)
 	nop
 	.exit
 	.procend
-ENDPROC(flush_kernel_icache_range_asm)
+ENDPROC_CFI(flush_kernel_icache_range_asm)
 
 	/* align should cover use of rfi in disable_sr_hashing_asm and
 	 * srdis_done.
 	 */
 	.align	256
-ENTRY(disable_sr_hashing_asm)
+ENTRY_CFI(disable_sr_hashing_asm)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -1289,6 +1289,6 @@ srdis_done:
 	.exit
 
 	.procend
-ENDPROC(disable_sr_hashing_asm)
+ENDPROC_CFI(disable_sr_hashing_asm)
 
 	.end
diff --git a/arch/parisc/kernel/real2.S b/arch/parisc/kernel/real2.S
index 5f3d3a1..1db58e5 100644
--- a/arch/parisc/kernel/real2.S
+++ b/arch/parisc/kernel/real2.S
@@ -61,7 +61,7 @@ save_cr_end:
 	 *	iodc_fn is the IODC function to call
 	 */
 
-ENTRY(real32_call_asm)
+ENTRY_CFI(real32_call_asm)
 	STREG	%rp, -RP_OFFSET(%sp)	/* save RP */
 #ifdef CONFIG_64BIT
 	callee_save
@@ -119,14 +119,14 @@ ric_ret:
 	LDREG	-RP_OFFSET(%sp), %rp	/* restore RP */
 	bv	0(%rp)
 	nop
-ENDPROC(real32_call_asm)
+ENDPROC_CFI(real32_call_asm)
 
 
 #  define PUSH_CR(r, where) mfctl r, %r1 ! STREG,ma %r1, REG_SZ(where)
 #  define POP_CR(r, where) LDREG,mb -REG_SZ(where), %r1 ! mtctl %r1, r
 
 	.text
-save_control_regs:
+ENTRY_CFI(save_control_regs)
 	load32	PA(save_cr_space), %r28
 	PUSH_CR(%cr24, %r28)
 	PUSH_CR(%cr25, %r28)
@@ -139,8 +139,9 @@ save_control_regs:
 	PUSH_CR(%cr15, %r28)
 	bv 0(%r2)
 	nop
+ENDPROC_CFI(save_control_regs)
 
-restore_control_regs:
+ENTRY_CFI(restore_control_regs)
 	load32	PA(save_cr_end), %r26
 	POP_CR(%cr15, %r26)
 	POP_CR(%cr31, %r26)
@@ -153,13 +154,14 @@ restore_control_regs:
 	POP_CR(%cr24, %r26)
 	bv 0(%r2)
 	nop
+ENDPROC_CFI(restore_control_regs)
 
 /* rfi_virt2real() and rfi_real2virt() could perhaps be adapted for
  * more general-purpose use by the several places which need RFIs
  */
 	.text
 	.align 128
-rfi_virt2real:
+ENTRY_CFI(rfi_virt2real)
 	/* switch to real mode... */
 	rsm		PSW_SM_I,%r0
 	load32		PA(rfi_v2r_1), %r1
@@ -191,10 +193,11 @@ rfi_v2r_1:
 	tophys_r1 %r2
 	bv	0(%r2)
 	nop
+ENDPROC_CFI(rfi_virt2real)
 
 	.text
 	.align 128
-rfi_real2virt:
+ENTRY_CFI(rfi_real2virt)
 	rsm		PSW_SM_I,%r0
 	load32		(rfi_r2v_1), %r1
 	nop
@@ -225,6 +228,7 @@ rfi_r2v_1:
 	tovirt_r1 %r2
 	bv	0(%r2)
 	nop
+ENDPROC_CFI(rfi_real2virt)
 
 #ifdef CONFIG_64BIT
 
@@ -238,7 +242,7 @@ rfi_r2v_1:
 	 *	arg0p points to where saved arg values may be found
 	 *	iodc_fn is the IODC function to call
 	 */
-ENTRY(real64_call_asm)
+ENTRY_CFI(real64_call_asm)
 	std	%rp, -0x10(%sp)		/* save RP */
 	std	%sp, -8(%arg0)		/* save SP on real-mode stack */
 	copy	%arg0, %sp		/* adopt the real-mode SP */
@@ -284,7 +288,7 @@ r64_ret:
 	ldd	-0x10(%sp), %rp		/* restore RP */
 	bv	0(%rp)
 	nop
-ENDPROC(real64_call_asm)
+ENDPROC_CFI(real64_call_asm)
 
 #endif
 
@@ -293,12 +297,12 @@ ENDPROC(real64_call_asm)
 	**	GCC 3.3 and later has a new function in libgcc.a for
 	**	comparing function pointers.
 	*/
-ENTRY(__canonicalize_funcptr_for_compare)
+ENTRY_CFI(__canonicalize_funcptr_for_compare)
 #ifdef CONFIG_64BIT
 	bve (%r2)
 #else
 	bv %r0(%r2)
 #endif
 	copy %r26,%r28
-ENDPROC(__canonicalize_funcptr_for_compare)
+ENDPROC_CFI(__canonicalize_funcptr_for_compare)
 
diff --git a/arch/parisc/lib/fixup.S b/arch/parisc/lib/fixup.S
index 1052b74..a5b72f2 100644
--- a/arch/parisc/lib/fixup.S
+++ b/arch/parisc/lib/fixup.S
@@ -65,34 +65,34 @@
 	.section .fixup, "ax"
 
 	/* get_user() fixups, store -EFAULT in r8, and 0 in r9 */
-ENTRY(fixup_get_user_skip_1)
+ENTRY_CFI(fixup_get_user_skip_1)
 	get_fault_ip %r1,%r8
 	ldo 4(%r1), %r1
 	ldi -EFAULT, %r8
 	bv %r0(%r1)
 	copy %r0, %r9
-ENDPROC(fixup_get_user_skip_1)
+ENDPROC_CFI(fixup_get_user_skip_1)
 
-ENTRY(fixup_get_user_skip_2)
+ENTRY_CFI(fixup_get_user_skip_2)
 	get_fault_ip %r1,%r8
 	ldo 8(%r1), %r1
 	ldi -EFAULT, %r8
 	bv %r0(%r1)
 	copy %r0, %r9
-ENDPROC(fixup_get_user_skip_2)
+ENDPROC_CFI(fixup_get_user_skip_2)
 
 	/* put_user() fixups, store -EFAULT in r8 */
-ENTRY(fixup_put_user_skip_1)
+ENTRY_CFI(fixup_put_user_skip_1)
 	get_fault_ip %r1,%r8
 	ldo 4(%r1), %r1
 	bv %r0(%r1)
 	ldi -EFAULT, %r8
-ENDPROC(fixup_put_user_skip_1)
+ENDPROC_CFI(fixup_put_user_skip_1)
 
-ENTRY(fixup_put_user_skip_2)
+ENTRY_CFI(fixup_put_user_skip_2)
 	get_fault_ip %r1,%r8
 	ldo 8(%r1), %r1
 	bv %r0(%r1)
 	ldi -EFAULT, %r8
-ENDPROC(fixup_put_user_skip_2)
+ENDPROC_CFI(fixup_put_user_skip_2)
 
diff --git a/arch/parisc/lib/lusercopy.S b/arch/parisc/lib/lusercopy.S
index a512f07..56845de 100644
--- a/arch/parisc/lib/lusercopy.S
+++ b/arch/parisc/lib/lusercopy.S
@@ -67,7 +67,7 @@
 	 * otherwise, returns number of bytes not transferred.
 	 */
 
-ENTRY(lclear_user)
+ENTRY_CFI(lclear_user)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -81,7 +81,7 @@ $lclu_done:
 	bv          %r0(%r2)
 	copy        %r25,%r28
 	.exit
-ENDPROC(lclear_user)
+ENDPROC_CFI(lclear_user)
 
 	.section .fixup,"ax"
 2:      fixup_branch $lclu_done
@@ -100,7 +100,7 @@ ENDPROC(lclear_user)
 	 *         else strlen + 1 (i.e. includes zero byte).
 	 */
 
-ENTRY(lstrnlen_user)
+ENTRY_CFI(lstrnlen_user)
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -120,7 +120,7 @@ $lslen_done:
 $lslen_nzero:
 	b           $lslen_done
 	ldo         1(%r26),%r26 /* special case for N == 0 */
-ENDPROC(lstrnlen_user)
+ENDPROC_CFI(lstrnlen_user)
 
 	.section .fixup,"ax"
 3:      fixup_branch $lslen_done
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Add hardened usercopy feature
Date: Thu, 6 Oct 2016 09:07:30 +0200
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Add hardened usercopy checks to parisc architecture and clean up
indenting.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index af12c2d..393c730 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -24,6 +24,7 @@ config PARISC
 	select SYSCTL_ARCH_UNALIGN_ALLOW
 	select SYSCTL_EXCEPTION_TRACE
 	select HAVE_MOD_ARCH_SPECIFIC
+	select HAVE_ARCH_HARDENED_USERCOPY
 	select VIRT_TO_BUS
 	select MODULES_USE_ELF_RELA
 	select CLONE_BACKWARDS
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 4828478..9a2aee1 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -11,6 +11,7 @@
 
 #include <linux/bug.h>
 #include <linux/string.h>
+#include <linux/thread_info.h>
 
 #define VERIFY_READ 0
 #define VERIFY_WRITE 1
@@ -201,10 +202,12 @@ extern long lstrnlen_user(const char __user *, long);
 #define clear_user lclear_user
 #define __clear_user lclear_user
 
-unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len);
-#define __copy_to_user copy_to_user
-unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long len);
-unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len);
+unsigned long __must_check __copy_to_user(void __user *dst, const void *src,
+					  unsigned long len);
+unsigned long __must_check __copy_from_user(void *dst, const void __user *src,
+					  unsigned long len);
+unsigned long copy_in_user(void __user *dst, const void __user *src,
+			   unsigned long len);
 #define __copy_in_user copy_in_user
 #define __copy_to_user_inatomic __copy_to_user
 #define __copy_from_user_inatomic __copy_from_user
@@ -217,23 +220,40 @@ static inline void copy_user_overflow(int size, unsigned long count)
 	WARN(1, "Buffer overflow detected (%d < %lu)!\n", size, count);
 }
 
-static inline unsigned long __must_check copy_from_user(void *to,
-                                          const void __user *from,
-                                          unsigned long n)
+static __always_inline unsigned long __must_check
+copy_from_user(void *to, const void __user *from, unsigned long n)
 {
-        int sz = __compiletime_object_size(to);
-        unsigned long ret = n;
+	int sz = __compiletime_object_size(to);
+	unsigned long ret = n;
 
-        if (likely(sz == -1 || sz >= n))
-                ret = __copy_from_user(to, from, n);
-        else if (!__builtin_constant_p(n))
+	if (likely(sz < 0 || sz >= n)) {
+		check_object_size(to, n, false);
+		ret = __copy_from_user(to, from, n);
+	} else if (!__builtin_constant_p(n))
 		copy_user_overflow(sz, n);
 	else
-                __bad_copy_user();
+		__bad_copy_user();
 
 	if (unlikely(ret))
 		memset(to + (n - ret), 0, ret);
-        return ret;
+
+	return ret;
+}
+
+static __always_inline unsigned long __must_check
+copy_to_user(void __user *to, const void *from, unsigned long n)
+{
+	int sz = __compiletime_object_size(from);
+
+	if (likely(sz < 0 || sz >= n)) {
+		check_object_size(from, n, true);
+		n = __copy_to_user(to, from, n);
+	} else if (!__builtin_constant_p(n))
+		copy_user_overflow(sz, n);
+	else
+		__bad_copy_user();
+
+	return n;
 }
 
 struct pt_regs;
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index b2b441b..f82ff10 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -489,20 +489,23 @@ static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
 }
 
 #ifdef __KERNEL__
-unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len)
+unsigned long __copy_to_user(void __user *dst, const void *src,
+			     unsigned long len)
 {
 	mtsp(get_kernel_space(), 1);
 	mtsp(get_user_space(), 2);
 	return pa_memcpy((void __force *)dst, src, len);
 }
+EXPORT_SYMBOL(__copy_to_user);
 
-EXPORT_SYMBOL(__copy_from_user);
-unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long len)
+unsigned long __copy_from_user(void *dst, const void __user *src,
+			       unsigned long len)
 {
 	mtsp(get_user_space(), 1);
 	mtsp(get_kernel_space(), 2);
 	return pa_memcpy(dst, (void __force *)src, len);
 }
+EXPORT_SYMBOL(__copy_from_user);
 
 unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len)
 {
@@ -520,8 +523,6 @@ void * memcpy(void * dst,const void *src, size_t count)
 	return dst;
 }
 
-EXPORT_SYMBOL(copy_to_user);
-EXPORT_SYMBOL(copy_from_user);
 EXPORT_SYMBOL(copy_in_user);
 EXPORT_SYMBOL(memcpy);
 
--
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From - Thu Nov 08 21:39:10 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Drop bootmem and switch to memblock
Date: Fri, 7 Oct 2016 16:50:21 +0200
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Memblock is the standard kernel boot-time memory tracker/allocator. Use it
instead of the bootmem allocator. This allows using kmemleak, CMA and
other features.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 689eb74..2a0339a 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -10,6 +10,8 @@ config PARISC
 	select RTC_CLASS
 	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
+	select HAVE_MEMBLOCK
+	select NO_BOOTMEM
 	select BUG
 	select BUILDTIME_EXTABLE_SORT
 	select HAVE_PERF_EVENTS
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index f3ead0b..5b8fae8 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -138,8 +138,6 @@ SECTIONS
 	/* BSS */
 	BSS_SECTION(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE)
 
-	/* bootmap is allocated in setup_bootmem() directly behind bss. */
-
 	. = ALIGN(HUGEPAGE_SIZE);
 	_end = . ;
 
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 6b3e7c6..356f384 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/gfp.h>
 #include <linux/delay.h>
 #include <linux/init.h>
@@ -79,6 +80,34 @@ static struct resource sysram_resources[MAX_PHYSMEM_RANGES] __read_mostly;
 physmem_range_t pmem_ranges[MAX_PHYSMEM_RANGES] __read_mostly;
 int npmem_ranges __read_mostly;
 
+/*
+ * get_memblock() allocates pages via memblock.
+ * We can't use memblock_find_in_range(0, KERNEL_INITIAL_SIZE) here since it
+ * doesn't allocate from bottom to top which is needed because we only created
+ * the initial mapping up to KERNEL_INITIAL_SIZE in the assembly bootup code.
+ */
+static void * __init get_memblock(unsigned long size)
+{
+	static phys_addr_t search_addr __initdata;
+	phys_addr_t phys;
+
+	if (!search_addr)
+		search_addr = PAGE_ALIGN(__pa((unsigned long) &_end));
+	search_addr = ALIGN(search_addr, size);
+	while (!memblock_is_region_memory(search_addr, size) ||
+		memblock_is_region_reserved(search_addr, size)) {
+		search_addr += size;
+	}
+	phys = search_addr;
+
+	if (phys)
+		memblock_reserve(phys, size);
+	else
+		panic("get_memblock() failed.\n");
+
+	return __va(phys);
+}
+
 #ifdef CONFIG_64BIT
 #define MAX_MEM         (~0UL)
 #else /* !CONFIG_64BIT */
@@ -118,11 +147,7 @@ static void __init mem_limit_func(void)
 
 static void __init setup_bootmem(void)
 {
-	unsigned long bootmap_size;
 	unsigned long mem_max;
-	unsigned long bootmap_pages;
-	unsigned long bootmap_start_pfn;
-	unsigned long bootmap_pfn;
 #ifndef CONFIG_DISCONTIGMEM
 	physmem_range_t pmem_holes[MAX_PHYSMEM_RANGES - 1];
 	int npmem_holes;
@@ -178,33 +203,29 @@ static void __init setup_bootmem(void)
 	}
 #endif
 
-	if (npmem_ranges > 1) {
-
-		/* Print the memory ranges */
+	/* Print the memory ranges */
+	pr_info("Memory Ranges:\n");
 
-		printk(KERN_INFO "Memory Ranges:\n");
+	for (i = 0; i < npmem_ranges; i++) {
+		struct resource *res = &sysram_resources[i];
+		unsigned long start;
+		unsigned long size;
 
-		for (i = 0; i < npmem_ranges; i++) {
-			unsigned long start;
-			unsigned long size;
+		size = (pmem_ranges[i].pages << PAGE_SHIFT);
+		start = (pmem_ranges[i].start_pfn << PAGE_SHIFT);
+		pr_info("%2d) Start 0x%016lx End 0x%016lx Size %6ld MB\n",
+			i, start, start + (size - 1), size >> 20);
 
-			size = (pmem_ranges[i].pages << PAGE_SHIFT);
-			start = (pmem_ranges[i].start_pfn << PAGE_SHIFT);
-			printk(KERN_INFO "%2d) Start 0x%016lx End 0x%016lx Size %6ld MB\n",
-				i,start, start + (size - 1), size >> 20);
-		}
-	}
-
-	sysram_resource_count = npmem_ranges;
-	for (i = 0; i < sysram_resource_count; i++) {
-		struct resource *res = &sysram_resources[i];
+		/* request memory resource */
 		res->name = "System RAM";
-		res->start = pmem_ranges[i].start_pfn << PAGE_SHIFT;
-		res->end = res->start + (pmem_ranges[i].pages << PAGE_SHIFT)-1;
+		res->start = start;
+		res->end = start + size - 1;
 		res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
 		request_resource(&iomem_resource, res);
 	}
 
+	sysram_resource_count = npmem_ranges;
+
 	/*
 	 * For 32 bit kernels we limit the amount of memory we can
 	 * support, in order to preserve enough kernel address space
@@ -263,16 +284,9 @@ static void __init setup_bootmem(void)
 	}
 #endif
 
-	bootmap_pages = 0;
-	for (i = 0; i < npmem_ranges; i++)
-		bootmap_pages += bootmem_bootmap_pages(pmem_ranges[i].pages);
-
-	bootmap_start_pfn = PAGE_ALIGN(__pa((unsigned long) &_end)) >> PAGE_SHIFT;
-
 #ifdef CONFIG_DISCONTIGMEM
 	for (i = 0; i < MAX_PHYSMEM_RANGES; i++) {
 		memset(NODE_DATA(i), 0, sizeof(pg_data_t));
-		NODE_DATA(i)->bdata = &bootmem_node_data[i];
 	}
 	memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
 
@@ -284,28 +298,24 @@ static void __init setup_bootmem(void)
 
 	/*
 	 * Initialize and free the full range of memory in each range.
-	 * Note that the only writing these routines do are to the bootmap,
-	 * and we've made sure to locate the bootmap properly so that they
-	 * won't be writing over anything important.
 	 */
 
-	bootmap_pfn = bootmap_start_pfn;
 	max_pfn = 0;
 	for (i = 0; i < npmem_ranges; i++) {
 		unsigned long start_pfn;
 		unsigned long npages;
+		unsigned long start;
+		unsigned long size;
 
 		start_pfn = pmem_ranges[i].start_pfn;
 		npages = pmem_ranges[i].pages;
 
-		bootmap_size = init_bootmem_node(NODE_DATA(i),
-						bootmap_pfn,
-						start_pfn,
-						(start_pfn + npages) );
-		free_bootmem_node(NODE_DATA(i),
-				  (start_pfn << PAGE_SHIFT),
-				  (npages << PAGE_SHIFT) );
-		bootmap_pfn += (bootmap_size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+		start = start_pfn << PAGE_SHIFT;
+		size = npages << PAGE_SHIFT;
+
+		/* add system RAM memblock */
+		memblock_add(start, size);
+
 		if ((start_pfn + npages) > max_pfn)
 			max_pfn = start_pfn + npages;
 	}
@@ -317,32 +327,22 @@ static void __init setup_bootmem(void)
 	 */
 	max_low_pfn = max_pfn;
 
-	/* bootmap sizing messed up? */
-	BUG_ON((bootmap_pfn - bootmap_start_pfn) != bootmap_pages);
-
 	/* reserve PAGE0 pdc memory, kernel text/data/bss & bootmap */
 
 #define PDC_CONSOLE_IO_IODC_SIZE 32768
 
-	reserve_bootmem_node(NODE_DATA(0), 0UL,
-			(unsigned long)(PAGE0->mem_free +
-				PDC_CONSOLE_IO_IODC_SIZE), BOOTMEM_DEFAULT);
-	reserve_bootmem_node(NODE_DATA(0), __pa(KERNEL_BINARY_TEXT_START),
-			(unsigned long)(_end - KERNEL_BINARY_TEXT_START),
-			BOOTMEM_DEFAULT);
-	reserve_bootmem_node(NODE_DATA(0), (bootmap_start_pfn << PAGE_SHIFT),
-			((bootmap_pfn - bootmap_start_pfn) << PAGE_SHIFT),
-			BOOTMEM_DEFAULT);
+	memblock_reserve(0UL, (unsigned long)(PAGE0->mem_free +
+				PDC_CONSOLE_IO_IODC_SIZE));
+	memblock_reserve(__pa(KERNEL_BINARY_TEXT_START),
+			(unsigned long)(_end - KERNEL_BINARY_TEXT_START));
 
 #ifndef CONFIG_DISCONTIGMEM
 
 	/* reserve the holes */
 
 	for (i = 0; i < npmem_holes; i++) {
-		reserve_bootmem_node(NODE_DATA(0),
-				(pmem_holes[i].start_pfn << PAGE_SHIFT),
-				(pmem_holes[i].pages << PAGE_SHIFT),
-				BOOTMEM_DEFAULT);
+		memblock_reserve((pmem_holes[i].start_pfn << PAGE_SHIFT),
+				(pmem_holes[i].pages << PAGE_SHIFT));
 	}
 #endif
 
@@ -360,8 +360,7 @@ static void __init setup_bootmem(void)
 			initrd_below_start_ok = 1;
 			printk(KERN_INFO "initrd: reserving %08lx-%08lx (mem_max %08lx)\n", __pa(initrd_start), __pa(initrd_start) + initrd_reserve, mem_max);
 
-			reserve_bootmem_node(NODE_DATA(0), __pa(initrd_start),
-					initrd_reserve, BOOTMEM_DEFAULT);
+			memblock_reserve(__pa(initrd_start), initrd_reserve);
 		}
 	}
 #endif
@@ -439,7 +438,7 @@ static void __init map_pages(unsigned long start_vaddr,
 		 */
 
 		if (!pmd) {
-			pmd = (pmd_t *) alloc_bootmem_low_pages_node(NODE_DATA(0), PAGE_SIZE << PMD_ORDER);
+			pmd = (pmd_t *) get_memblock(PAGE_SIZE << PMD_ORDER);
 			pmd = (pmd_t *) __pa(pmd);
 		}
 
@@ -458,8 +457,7 @@ static void __init map_pages(unsigned long start_vaddr,
 
 			pg_table = (pte_t *)pmd_address(*pmd);
 			if (!pg_table) {
-				pg_table = (pte_t *)
-					alloc_bootmem_low_pages_node(NODE_DATA(0), PAGE_SIZE);
+				pg_table = (pte_t *) get_memblock(PAGE_SIZE);
 				pg_table = (pte_t *) __pa(pg_table);
 			}
 
@@ -737,7 +735,7 @@ static void __init pagetable_init(void)
 	}
 #endif
 
-	empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page = get_memblock(PAGE_SIZE);
 }
 
 static void __init gateway_init(void)
--
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Increase the initial kernel default page mapping size for SMP kernels to 32MB
and add a runtime check which panics early if the kernel is bigger than the
initial mapping size.

This fixes boot crashes of 32bit SMP kernels. Due to the introduction of huge
page support in kernel 4.4 and it's required initial kernel layout in memory, a
32bit SMP kernel usually got bigger (in layout, not size) than 16MB.

Cc: stable@vger.kernel.org #4.4+
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 291cee2..e44bdb9 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -83,7 +83,7 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e))
 
 /* This is the size of the initially mapped kernel memory */
-#ifdef CONFIG_64BIT
+#if defined(CONFIG_64BIT) || defined(CONFIG_SMP)
 #define KERNEL_INITIAL_ORDER	25	/* 1<<25 = 32MB */
 #else
 #define KERNEL_INITIAL_ORDER	24	/* 1<<24 = 16MB */
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index f7ea626..81d6f63 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -38,6 +38,7 @@
 #include <linux/export.h>
 
 #include <asm/processor.h>
+#include <asm/sections.h>
 #include <asm/pdc.h>
 #include <asm/led.h>
 #include <asm/machdep.h>	/* for pa7300lc_init() proto */
@@ -140,6 +141,13 @@ void __init setup_arch(char **cmdline_p)
 #endif
 	printk(KERN_CONT ".\n");
 
+	/*
+	 * Check if initial kernel page mappings are sufficient.
+	 * panic early if not, else we may access kernel functions
+	 * and variables which can't be reached.
+	 */
+	if (__pa((unsigned long) &_end) >= KERNEL_INITIAL_SIZE)
+		panic("KERNEL_INITIAL_ORDER too small!");
 
 	pdc_console_init();
 
--
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Subject: [GIT PULL] parisc architecture updates for v4.9-rc1
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Hi Linus,

please pull the updates for 4.9-rc1 for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.9-1

Changes include:
 
- Fix boot of 32bit SMP kernel (initial kernel mapping was too small)

- Added hardened usercopy checks

- Drop bootmem and switch to memblock and NO_BOOTMEM implementation

- Drop the BROKEN_RODATA config option (and thus remove the relevant code from
  the generic headers and files because parisc was the last architecture which
  used this config option)

- Improve segfault reporting by printing human readable error strings

- Various smaller changes, e.g. dwarf debug support for assembly code, update
  comments regarding copy_user_page_asm, switch to kmalloc_array()

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (9):
      parisc: Drop BROKEN_RODATA config option
      parisc: Check return value of smp_boot_one_cpu()
      parisc: Report trap type as human readable string
      parisc: Fix self-detected CPU stall warnings on Mako machines
      parisc: Move hpmc stack into page aligned bss section
      parisc: Add cfi_startproc and cfi_endproc to assembly code
      parisc: Add hardened usercopy feature
      parisc: Drop bootmem and switch to memblock
      parisc: Increase KERNEL_INITIAL_SIZE for 32-bit SMP kernels

John David Anglin (1):
      parisc: Update comment regarding implementation of copy_user_page_asm

Markus Elfring (1):
      parisc: Use kmalloc_array() in add_system_map_addresses()

 arch/parisc/Kconfig               |   4 +-
 arch/parisc/include/asm/dwarf.h   |  23 +++++++
 arch/parisc/include/asm/linkage.h |  12 ++++
 arch/parisc/include/asm/pgtable.h |   2 +-
 arch/parisc/include/asm/uaccess.h |  48 ++++++++++-----
 arch/parisc/kernel/entry.S        |  46 +++++++-------
 arch/parisc/kernel/hpmc.S         |  16 +++--
 arch/parisc/kernel/inventory.c    |   2 +-
 arch/parisc/kernel/pacache.S      |  84 +++++++++++++------------
 arch/parisc/kernel/real2.S        |  24 +++++---
 arch/parisc/kernel/setup.c        |   8 +++
 arch/parisc/kernel/smp.c          |   4 +-
 arch/parisc/kernel/time.c         |   6 --
 arch/parisc/kernel/vmlinux.lds.S  |   2 -
 arch/parisc/lib/fixup.S           |  16 ++---
 arch/parisc/lib/lusercopy.S       |   8 +--
 arch/parisc/lib/memcpy.c          |  11 ++--
 arch/parisc/mm/fault.c            |  48 ++++++++++++++-
 arch/parisc/mm/init.c             | 126 +++++++++++++++++++-------------------
 include/linux/init.h              |  19 ++----
 init/Kconfig                      |   6 --
 21 files changed, 308 insertions(+), 207 deletions(-)
 create mode 100644 arch/parisc/include/asm/dwarf.h
--
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The exception tables are sorted during buildtime (due to
BUILDTIME_EXTABLE_SORT), so it's safe to move those into the read-only kernel
section.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index b37787d..f366a1a 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -106,6 +106,10 @@ SECTIONS
 	}
 #endif
 
+	/* RO because we have BUILDTIME_EXTABLE_SORT */
+	EXCEPTION_TABLE(8)
+	NOTES
+
 	/* unwind info */
 	.PARISC.unwind : {
 		__start___unwind = .;
@@ -121,9 +125,6 @@ SECTIONS
 	. = ALIGN(HUGEPAGE_SIZE);
 	data_start = .;
 
-	EXCEPTION_TABLE(8)
-	NOTES

From - Thu Nov 08 21:39:11 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Increase default initial kernel mapping to 32 MB
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For 32-bit kernels which include multiple modules built-in 16 MB initial kernel
mapping may get too small. To avoid boot problems increase the kernel mapping
to 32 MB for all 32- and 64-bit kernel configs.

Cc: stable@vger.kernel.org # 4.4+
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index e44bdb9..ef32e28 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -83,11 +83,7 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e))
 
 /* This is the size of the initially mapped kernel memory */
-#if defined(CONFIG_64BIT) || defined(CONFIG_SMP)
 #define KERNEL_INITIAL_ORDER	25	/* 1<<25 = 32MB */
-#else
-#define KERNEL_INITIAL_ORDER	24	/* 1<<24 = 16MB */
-#endif
 #define KERNEL_INITIAL_SIZE	(1 << KERNEL_INITIAL_ORDER)
 
 #if CONFIG_PGTABLE_LEVELS == 3
--
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From - Thu Nov 08 21:39:11 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: parisc crash on boot with 4.8+git
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Just tried 4.8.0-11288-gb66484c on three of my parsic machines (enabled 
strict usercopy checking or somethinng like that in make oldconfig).

rp3440 worked fine. a500 and rp3410 cras on boot.

rp3410 crashed on boot with the following:

Linux version 4.8.0-11288-gb66484c (mroos@rp3410) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #81 Sat Oct 8 20:40:24 EEST 2016
unwind_init: start = 0x4076e980, end = 0x407a7060, entries = 14446
The 64-bit Kernel has started...
Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00008860 00000491 00000000 00000002 3e45475d0860fe3d 100000f0 00000008 000000b2 000000b2
vers  00000302
CPUID vers 20 rev 5 (0x00000285)
capabilities 0x35
model 9000/800/rp3410
parisc_cache_init: Only equivalent aliasing supported!
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
 1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
Total Memory: 2046 MB
Backtrace:
 [<0000000040102d40>] paging_init+0x5e0/0x740
 [<0000000040103744>] setup_arch+0x16c/0x1b0
 [<0000000040100ce0>] start_kernel+0xb8/0x668

Bad Address (null pointer deref?): Code=15 regs=00000000408034c0 (Addr=000000099cf94000)
CPU: 0 PID: 0 Comm: swapper Not tainted 4.8.0-11288-gb66484c #81
task: 000000004087ea20 task.stack: 0000000040803000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Not tainted
r00-03  000000ff0804ff0e 0000000000900000 00000000401024c4 00000000408033b0 
r04-07  000000004074a3c0 0000000040af0000 0000004040000000 000000004088e104 
r08-11  0000000040803490 000000407fe00000 0000004040000000 0000000000200000 
r12-15  000000004076e3c0 0000000040122928 0000000040000000 0000000000000323 
r16-19  0000004080000000 0000000000000400 0000000000000000 000000099cf94000 
r20-23  0000000000001000 00000000009f2000 0000000000000001 0000000000000001 
r24-27  00000000095cf940 00000000408e1c90 0000004080000000 000000004074a3c0 
r28-31  0000004040000323 0000000040803510 00000000408034c0 000000099cf94000 
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004010251c 0000000040102520
 IIR: 0ffc12c0    ISR: 0000000000000000  IOR: 000000099cf94000
 CPU:        0   CR30: 0000000040803000 CR31: fffffff0f0e05ee0
 ORIG_R28: 00000000408036d0
 IAOQ[0]: map_pages+0x234/0x320
 IAOQ[1]: map_pages+0x238/0x320
 RP(r2): map_pages+0x1dc/0x320
Backtrace:
 [<0000000040102d40>] paging_init+0x5e0/0x740
 [<0000000040103744>] setup_arch+0x16c/0x1b0
 [<0000000040100ce0>] start_kernel+0xb8/0x668

Kernel panic - not syncing: Bad Address (null pointer deref?)
---[ end Kernel panic - not syncing: Bad Address (null pointer deref?)


A500 dies differently on boot:

Linux version 4.8.0-11288-gb66484c (mroos@a500) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #100 Sat Oct 8 22:11:04 EEST 2016
unwind_init: start = 0x4074ee10, end = 0x40787d90, entries = 14584
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical 
and 2 MB virtual size.
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00005cb0 00000491 00000000 00000001 5c5f29fa 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 17 rev 11 (0x0000022b)
capabilities 0x1
model 9000/800/A500-44
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
Total Memory: 1024 MB
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 258560
Kernel command line: root=/dev/sda3 console=ttyS0 palo_kernel=2/vmlinux
PID hash table entries: 4096 (order: 3, 32768 bytes)
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Memory: 1022352K/1048576K available (4328K kernel code, 1812K rwdata, 576K rodata, 1024K init, 424K bss, 26224K reserved, 0K cma-reserved)
virtual kernel memory layout:
   vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
   memory  : 0x0000000040000000 - 0x0000000080000000   (1024 MB)
     .init : 0x0000000040100000 - 0x0000000040200000   (1024 kB)
     .data : 0x000000004063a000 - 0x000000004088f370   (2388 kB)
     .text : 0x0000000040200000 - 0x000000004063a000   (4328 kB)
SLUB: HWalign=16, Order=0-3, MinObjects=0, CPUs=1, Nodes=8
NR_IRQS:80
clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0x657a3c2da0, 
max_idle_ns: 440795224593 ns
Console: colour dummy device 160x64
Calibrating delay loop... 872.44 BogoMIPS (lpj=1744896)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes)
devtmpfs: initialized
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, 
max_idle_ns: 7645041785100000 ns
NET: Registered protocol family 16
Searching for devices...
Found devices:
1. Crescendo 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5cb, 0x00004 }
2. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x09b, 0x00009 }
3. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b }
4. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a }
5. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a }
6. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a }
7. Elroy PCI Bridge at 0xfffffffffed3c000 [0/6] { 13, 0x0, 0x782, 0x0000a }
Enabling PDC_PAT chassis codes support v0.05

********** VIRTUAL FRONT PANEL **********
System Boot detected
*****************************************
LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         FLASH     ON         ON
LED State: Unexpected Reboot. Running non-OS code. Non-critical error 
detected.
Check Chassis and Console Logs for error messages.

processor                 system initialization      1C00

*****************************************

************ EARLY BOOT VFP *************
End of early boot detected
*****************************************
 [<00000000402050c0>] _switch_to_ret+0x0/0xf40

CPU: 0 PID: 1 Comm: swapper Not tainted 4.8.0-11288-gb66484c #100
Backtrace:
 [<00000000402152f4>] show_stack+0x14/0x20
 [<000000004043a848>] dump_stack+0x30/0x40
 [<0000000040215488>] die_if_kernel+0x180/0x298
 [<0000000040216304>] handle_interruption+0x99c/0x9c0

---[ end trace 61bce946a86921df ]---
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b


-- 
Meelis Roos (mroos@linux.ee)


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From: Meelis Roos <mroos@linux.ee>
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On my Gentoo hppa systems with custom kernels, I get the following 
error on bootup:

 * Setting system clock using the hardware clock [UTC] ...
hwclock: settimeofday() failed: Invalid argument
 * Failed to set the system clock

Once the system has booted up, hwclock --hctosys and hwclock --systohc 
work fine. Maybe something related to gentoo /etc/init.d/hwclock but 
before reporting it there I want to understand it first.


What RTC driver and options should be selected in the kernel for RTC 
operations to work?

I have only RTC_DRV_GENERIC set for RTC drivers.


CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
# CONFIG_RTC_DRV_TEST is not set
#
# I2C RTC drivers
#

#
# SPI RTC drivers
#

#
# SPI and I2C RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y

#
# HID Sensor RTC drivers
#


-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:39:11 2018
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Hi Meelis,

On 08.10.2016 23:52, Meelis Roos wrote:
> Just tried 4.8.0-11288-gb66484c on three of my parsic machines (enabled 
> strict usercopy checking or somethinng like that in make oldconfig).

It's not related to the usercopy checks, instead it's most likely a
parisc-specific problem I just noticed today as well and which I'm 
currently fixing.
 
> rp3440 worked fine. a500 and rp3410 cras on boot.
> 
> rp3410 crashed on boot with the following:
> 
> Linux version 4.8.0-11288-gb66484c (mroos@rp3410) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #81 Sat Oct 8 20:40:24 EEST 2016
> unwind_init: start = 0x4076e980, end = 0x407a7060, entries = 14446
> The 64-bit Kernel has started...
> Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
> bootconsole [ttyB0] enabled
> ...
> Memory Ranges:
>  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
>  1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
> Total Memory: 2046 MB
> Backtrace:
>  [<0000000040102d40>] paging_init+0x5e0/0x740
>  [<0000000040103744>] setup_arch+0x16c/0x1b0
>  [<0000000040100ce0>] start_kernel+0xb8/0x668
> 
> Bad Address (null pointer deref?): Code=15 regs=00000000408034c0 (Addr=000000099cf94000)

You probably are facing one or both of those problems:
1. Your kernel is bigger than the initial kernel mappings
2. You face a bug in the palo boot loader.

Regarding 1, you probably have CONFIG_TRACE=y or CONFIG_TEST_RHASHTABLE=y enabled?
Both increase the kernel size a lot and trigger this bug. 
To fix it, make sure you have this patch in your kernel (it's upstream):
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=690d097c00c88fa9d93d198591e184164b1d8c20

Additionally if people (not you) use a 32bit kernel I suggest this one too (in my for-next tree):
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=for-next&id=96c65e4d1c77f461b34161dc8e6f2db7c50fd3e8

Both patches increase the initial kernel page mappings to 32MB which should be sufficient.

Even if you fix the kernel with the patches above, you still may run
into the palo bug. I've just pushed a fix for it into the palo tree:
https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/commit/?id=70bd7a9a41e318c0575755a78c4d18ad97495c47

If you rebuild palo, please make sure to install the new ipl boot loader into
the palo partition of your boot disc. palo should report at bootup version 1.96.

Helge
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On 09.10.2016 00:16, Meelis Roos wrote:
> On my Gentoo hppa systems with custom kernels, I get the following 
> error on bootup:
> 
>  * Setting system clock using the hardware clock [UTC] ...
> hwclock: settimeofday() failed: Invalid argument
>  * Failed to set the system clock

I don't see this on debian...

> Once the system has booted up, hwclock --hctosys and hwclock --systohc 
> work fine. Maybe something related to gentoo /etc/init.d/hwclock but 
> before reporting it there I want to understand it first.
> 
> 
> What RTC driver and options should be selected in the kernel for RTC 
> operations to work?
> 
> I have only RTC_DRV_GENERIC set for RTC drivers.

I have pretty much the same config options:
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_I2C_AND_SPI=y
CONFIG_RTC_DRV_GENERIC=y

The only difference seems to be that I don't have
 CONFIG_RTC_INTF_DEV_UIE_EMUL=y

Helge

 
> 
> CONFIG_RTC_LIB=y
> CONFIG_RTC_CLASS=y
> CONFIG_RTC_HCTOSYS=y
> CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
> CONFIG_RTC_SYSTOHC=y
> CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
> # CONFIG_RTC_DEBUG is not set
> 
> #
> # RTC interfaces
> #
> CONFIG_RTC_INTF_SYSFS=y
> CONFIG_RTC_INTF_PROC=y
> CONFIG_RTC_INTF_DEV=y
> CONFIG_RTC_INTF_DEV_UIE_EMUL=y
> # CONFIG_RTC_DRV_TEST is not set
> #
> # I2C RTC drivers
> #
> 
> #
> # SPI RTC drivers
> #
> 
> #
> # SPI and I2C RTC drivers
> #
> 
> #
> # Platform RTC drivers
> #
> # CONFIG_RTC_DRV_DS1286 is not set
> # CONFIG_RTC_DRV_DS1511 is not set
> # CONFIG_RTC_DRV_DS1553 is not set
> # CONFIG_RTC_DRV_DS1685_FAMILY is not set
> # CONFIG_RTC_DRV_DS1742 is not set
> # CONFIG_RTC_DRV_DS2404 is not set
> # CONFIG_RTC_DRV_STK17TA8 is not set
> # CONFIG_RTC_DRV_M48T86 is not set
> # CONFIG_RTC_DRV_M48T35 is not set
> # CONFIG_RTC_DRV_M48T59 is not set
> # CONFIG_RTC_DRV_MSM6242 is not set
> # CONFIG_RTC_DRV_BQ4802 is not set
> # CONFIG_RTC_DRV_RP5C01 is not set
> # CONFIG_RTC_DRV_V3020 is not set
> 
> #
> # on-CPU RTC drivers
> #
> CONFIG_RTC_DRV_GENERIC=y
> 
> #
> # HID Sensor RTC drivers

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On 08.10.2016 23:20, Helge Deller wrote:
> On 09.10.2016 00:16, Meelis Roos wrote:
>> On my Gentoo hppa systems with custom kernels, I get the following 
>> error on bootup:
>>
>>  * Setting system clock using the hardware clock [UTC] ...
>> hwclock: settimeofday() failed: Invalid argument
>>  * Failed to set the system clock
> 
> I don't see this on debian...

I see it at shutdown (32bit kernel):
hwclock: ioctl(RTC_SET_TIME) to /dev/rtc0 to set the time failed.: Invalid argument

Helge
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From - Thu Nov 08 21:39:11 2018
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Subject: Re: parisc crash on boot with 4.8+git
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To: Helge Deller <deller@gmx.de>
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> On 08.10.2016 23:52, Meelis Roos wrote:
> > Just tried 4.8.0-11288-gb66484c on three of my parsic machines (enabled 
> > strict usercopy checking or somethinng like that in make oldconfig).
> 
> It's not related to the usercopy checks, instead it's most likely a
> parisc-specific problem I just noticed today as well and which I'm 
> currently fixing.
>  
> > rp3440 worked fine. a500 and rp3410 cras on boot.
> > 
> > rp3410 crashed on boot with the following:
> > 
> > Linux version 4.8.0-11288-gb66484c (mroos@rp3410) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #81 Sat Oct 8 20:40:24 EEST 2016
> > unwind_init: start = 0x4076e980, end = 0x407a7060, entries = 14446
> > The 64-bit Kernel has started...
> > Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
> > bootconsole [ttyB0] enabled
> > ...
> > Memory Ranges:
> >  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
> >  1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
> > Total Memory: 2046 MB
> > Backtrace:
> >  [<0000000040102d40>] paging_init+0x5e0/0x740
> >  [<0000000040103744>] setup_arch+0x16c/0x1b0
> >  [<0000000040100ce0>] start_kernel+0xb8/0x668
> > 
> > Bad Address (null pointer deref?): Code=15 regs=00000000408034c0 (Addr=000000099cf94000)
> 
> You probably are facing one or both of those problems:
> 1. Your kernel is bigger than the initial kernel mappings
> 2. You face a bug in the palo boot loader.
> 
> Regarding 1, you probably have CONFIG_TRACE=y or CONFIG_TEST_RHASHTABLE=y enabled?
> Both increase the kernel size a lot and trigger this bug. 

# CONFIG_TEST_RHASHTABLE is not set

There is no CONFIG_TRACE in my .config.

grep TRACE .config gives
CONFIG_STACKTRACE_SUPPORT=y
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
# CONFIG_TRACE_SINK is not set
# CONFIG_STACKTRACE is not set
# CONFIG_RCU_TRACE is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
# CONFIG_FTRACE is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
CONFIG_TRACE_IRQFLAGS_SUPPORT=y

> To fix it, make sure you have this patch in your kernel (it's upstream):
> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=690d097c00c88fa9d93d198591e184164b1d8c20

I saw this batch of parisc changes in mainline, that's why I built new 
kernels for test and then I got the error. 4.8.0-11288-gb66484c is the 
version I ran, with the commit AFAIK.
 
> Additionally if people (not you) use a 32bit kernel I suggest this one too (in my for-next tree):
> http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/commit/?h=for-next&id=96c65e4d1c77f461b34161dc8e6f2db7c50fd3e8
> 
> Both patches increase the initial kernel page mappings to 32MB which should be sufficient.
> 
> Even if you fix the kernel with the patches above, you still may run
> into the palo bug. I've just pushed a fix for it into the palo tree:
> https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/commit/?id=70bd7a9a41e318c0575755a78c4d18ad97495c47
> 
> If you rebuild palo, please make sure to install the new ipl boot loader into
> the palo partition of your boot disc. palo should report at bootup version 1.96.
> 
> Helge
> 

-- 
Meelis Roos (mroos@linux.ee)
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On 09.10.2016 11:03, Meelis Roos wrote:
>> On 08.10.2016 23:52, Meelis Roos wrote:
>>> rp3410 crashed on boot with the following:
>>>
>>> Linux version 4.8.0-11288-gb66484c (mroos@rp3410) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #81 Sat Oct 8 20:40:24 EEST 2016
>>> unwind_init: start = 0x4076e980, end = 0x407a7060, entries = 14446
>>> The 64-bit Kernel has started...
>>> Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
>>> bootconsole [ttyB0] enabled
>>> ...
>>> Memory Ranges:
>>>  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
>>>  1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
>>> Total Memory: 2046 MB
>>> Backtrace:
>>>  [<0000000040102d40>] paging_init+0x5e0/0x740
>>>  [<0000000040103744>] setup_arch+0x16c/0x1b0
>>>  [<0000000040100ce0>] start_kernel+0xb8/0x668
>>>
>>> Bad Address (null pointer deref?): Code=15 regs=00000000408034c0 (Addr=000000099cf94000)
>>
>> You probably are facing one or both of those problems:
>> 1. Your kernel is bigger than the initial kernel mappings
>> 2. You face a bug in the palo boot loader.
>>
>> Regarding 1, you probably have CONFIG_TRACE=y or CONFIG_TEST_RHASHTABLE=y enabled?
>> Both increase the kernel size a lot and trigger this bug. 
> 
> # CONFIG_TEST_RHASHTABLE is not set
> 
> There is no CONFIG_TRACE in my .config.
> # CONFIG_FTRACE is not set

I meant CONFIG_FTRACE (which you don't seem to have enabled).

I just pushed two updated patches to my for-next git tree.
Please pull them on top of Linux head and try again (please update palo before).
http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/log/?h=for-next

>> Even if you fix the kernel with the patches above, you still may run
>> into the palo bug. I've just pushed a fix for it into the palo tree:
>> https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/commit/?id=70bd7a9a41e318c0575755a78c4d18ad97495c47
>>
>> If you rebuild palo, please make sure to install the new ipl boot loader into
>> the palo partition of your boot disc. palo should report at bootup version 1.96.

Same here. Please pull latest version, and install it:
https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/

Helge
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Increase the initial kernel default page mapping size for 64-bit kernels to
64 MB and for 32-bit kernels to 32 MB.

Due to the additional support of ftrace, tracepoint and huge pages the kernel
size can exceed the sizes we used up to now.

Cc: stable@vger.kernel.org # 4.4+
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index e44bdb9..c2c43f7 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -83,10 +83,10 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
 	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e))
 
 /* This is the size of the initially mapped kernel memory */
-#if defined(CONFIG_64BIT) || defined(CONFIG_SMP)
-#define KERNEL_INITIAL_ORDER	25	/* 1<<25 = 32MB */
+#if defined(CONFIG_64BIT)
+#define KERNEL_INITIAL_ORDER	26	/* 1<<26 = 64MB */
 #else
-#define KERNEL_INITIAL_ORDER	24	/* 1<<24 = 16MB */
+#define KERNEL_INITIAL_ORDER	25	/* 1<<25 = 32MB */
 #endif
 #define KERNEL_INITIAL_SIZE	(1 << KERNEL_INITIAL_ORDER)
 
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Since BUILDTIME_EXTABLE_SORT is enabled, the exception tables can move
into the read-only section.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 9a44e92..3d6ef1b 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -109,6 +109,10 @@ SECTIONS
 
 	RO_DATA_SECTION(8)
 
+	/* RO because of BUILDTIME_EXTABLE_SORT */
+	EXCEPTION_TABLE(8)
+	NOTES
+
 	/* unwind info */
 	.PARISC.unwind : {
 		__start___unwind = .;
@@ -124,9 +128,6 @@ SECTIONS
 	. = ALIGN(HUGEPAGE_SIZE);
 	data_start = .;
 
-	EXCEPTION_TABLE(8)
-	NOTES

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On 2016-10-09, at 5:03 AM, Meelis Roos wrote:

>>> Linux version 4.8.0-11288-gb66484c (mroos@rp3410) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #81 Sat Oct 8 20:40:24 EEST 2016
>>> unwind_init: start = 0x4076e980, end = 0x407a7060, entries = 14446
>>> The 64-bit Kernel has started...
>>> Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.

The first thing I would suspect is the enabling of huge pages.

Dave
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From - Thu Nov 08 21:39:12 2018
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> >> Even if you fix the kernel with the patches above, you still may run
> >> into the palo bug. I've just pushed a fix for it into the palo tree:
> >> https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/commit/?id=70bd7a9a41e318c0575755a78c4d18ad97495c47
> >>
> >> If you rebuild palo, please make sure to install the new ipl boot loader into
> >> the palo partition of your boot disc. palo should report at bootup version 1.96.
> 
> Same here. Please pull latest version, and install it:
> https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/

palo ipl 1.96 http://www.parisc-linux.org - Sun, 08 Oct 2016 22:40:31 +0100

Just palo with newst upstream kernel git did not change anything, so 
it's not palo.


Pulled 
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git 
but it seems to be alreay up to date - these commits are in my tested 
upstream that broke the booting?


-- 
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> >>> Linux version 4.8.0-11288-gb66484c (mroos@rp3410) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #81 Sat Oct 8 20:40:24 EEST 2016
> >>> unwind_init: start = 0x4076e980, end = 0x407a7060, entries = 14446
> >>> The 64-bit Kernel has started...
> >>> Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
> 
> The first thing I would suspect is the enabling of huge pages.

There seems to be no config option to disable that for test?

-- 
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From: Helge Deller <deller@gmx.de>
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Subject: Re: parisc crash on boot with 4.8+git
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To: Meelis Roos <mroos@linux.ee>,
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On 09.10.2016 23:13, Meelis Roos wrote:
>>>>> Linux version 4.8.0-11288-gb66484c (mroos@rp3410) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #81 Sat Oct 8 20:40:24 EEST 2016
>>>>> unwind_init: start = 0x4076e980, end = 0x407a7060, entries = 14446
>>>>> The 64-bit Kernel has started...
>>>>> Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
>>
>> The first thing I would suspect is the enabling of huge pages.
> 
> There seems to be no config option to disable that for test?
 
CONFIG_HUGETLBFS=n

Helge
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: parisc crash on boot with 4.8+git
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On 09.10.2016 23:09, Meelis Roos wrote:
>>>> Even if you fix the kernel with the patches above, you still may run
>>>> into the palo bug. I've just pushed a fix for it into the palo tree:
>>>> https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/commit/?id=70bd7a9a41e318c0575755a78c4d18ad97495c47
>>>>
>>>> If you rebuild palo, please make sure to install the new ipl boot loader into
>>>> the palo partition of your boot disc. palo should report at bootup version 1.96.
>>
>> Same here. Please pull latest version, and install it:
>> https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/
> 
> palo ipl 1.96 http://www.parisc-linux.org - Sun, 08 Oct 2016 22:40:31 +0100
> 
> Just palo with newst upstream kernel git did not change anything, so 
> it's not palo.
> 
> 
> Pulled 
> git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git 
> but it seems to be alreay up to date - these commits are in my tested 
> upstream that broke the booting?

Really? I just updated it a few hours ago. Please pull the "for-next" branch.

Can you send the last line of your "System.map" file, e.g.
0000000041f00000 B _end

What is the output of palo when booting ?

Helge
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-- 
This is the second time i am sending you this mail.

I, Friedrich Mayrhofer Donate $ 1,000,000.00 to You, Email  Me personally
for more details.

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> >>>> Even if you fix the kernel with the patches above, you still may run
> >>>> into the palo bug. I've just pushed a fix for it into the palo tree:
> >>>> https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/commit/?id=70bd7a9a41e318c0575755a78c4d18ad97495c47
> >>>>
> >>>> If you rebuild palo, please make sure to install the new ipl boot loader into
> >>>> the palo partition of your boot disc. palo should report at bootup version 1.96.
> >>
> >> Same here. Please pull latest version, and install it:
> >> https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/
> > 
> > palo ipl 1.96 http://www.parisc-linux.org - Sun, 08 Oct 2016 22:40:31 +0100
> > 
> > Just palo with newst upstream kernel git did not change anything, so 
> > it's not palo.
> > 
> > 
> > Pulled 
> > git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git 
> > but it seems to be alreay up to date - these commits are in my tested 
> > upstream that broke the booting?
> 
> Really? I just updated it a few hours ago. Please pull the "for-next" branch.
> 
> Can you send the last line of your "System.map" file, e.g.
> 0000000041f00000 B _end
> 
> What is the output of palo when booting ?

Sorry, I pulled from the default branch before, now for-next and it did 
pull stuff.

System.map ends with

0000000040900000 B _end



HARD Booted.
palo ipl 1.96 http://www.parisc-linux.org - Sun, 08 Oct 2016 22:40:31 +0100

Partition Start(MB) End(MB) Id Type
1               1      32   f0 Palo
2              33     224   83 ext2
3             225   31696   83 ext2
4           31697   34715   82 swap

PALO(F0) partition contains:

Command line for kernel: 'root=/dev/sdb3 console=ttyS1 
palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 135536 mediaptr 0x1000
Segment 1 load 00122000 size 23320 mediaptr 0x23000
Segment 2 load 00200000 size 4541488 mediaptr 0x29000
Segment 3 load 00655000 size 1393916 mediaptr 0x47e000
Segment 4 load 00800000 size 1045640 mediaptr 0x5d3000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 4.8.0-11292-gf79b076 (mroos@rp3410) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #82 Mon Oct 10 01:25:58 EEST 2016
unwind_init: start = 0x40770e1c, end = 0x407a94fc, entries = 14446
FP[0] enabled: Rev 1 Model 20
The 64-bit Kernel has started...
Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: 64 bit PAT.
model 00008860 00000491 00000000 00000002 3e45475d0860fe3d 100000f0 00000008 000000b2 000000b2
vers  00000302
CPUID vers 20 rev 5 (0x00000285)
capabilities 0x35
model 9000/800/rp3410  
parisc_cache_init: Only equivalent aliasing supported!
Memory Ranges:
 0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
 1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
Total Memory: 2046 MB
Backtrace:
 [<0000000040102d40>] paging_init+0x5e0/0x740
 [<0000000040103744>] setup_arch+0x16c/0x1b0
 [<0000000040100ce0>] start_kernel+0xb8/0x668


Bad Address (null pointer deref?): Code=15 regs=00000000408004c0 (Addr=0000006cbe693000)
CPU: 0 PID: 0 Comm: swapper Not tainted 4.8.0-11292-gf79b076 #82
task: 000000004087ba20 task.stack: 0000000040800000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001110 Not tainted
r00-03  000000ff0804ff0e 0000000000900000 00000000401024c4 00000000408003b0
r04-07  00000000406b45c0 0000000040ae0000 0000004040000000 000000004088b104
r08-11  0000000040800490 000000407fe00000 0000004040000000 0000000000200000
r12-15  00000000406d85c0 0000000040122928 0000000040000000 0000000000000323
r16-19  0000004080000000 0000000000000400 0000000000000000 0000006cbe693000
r20-23  0000000000001000 00000000009e2000 0000000000000001 0000000000000001
r24-27  000000006c7e693e 00000000408eec90 0000004080000000 00000000406b45c0
r28-31  0000004040000323 0000000040800510 00000000408004c0 0000006cbe693000
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004010251c 0000000040102520
 IIR: 0ffc12c0    ISR: 0000000000000000  IOR: 0000006cbe693000
 CPU:        0   CR30: 0000000040800000 CR31: fffffff0f0e05ee0
 ORIG_R28: 00000000408006d0
 IAOQ[0]: map_pages+0x234/0x320
 IAOQ[1]: map_pages+0x238/0x320
 RP(r2): map_pages+0x1dc/0x320
Backtrace:
 [<0000000040102d40>] paging_init+0x5e0/0x740
 [<0000000040103744>] setup_arch+0x16c/0x1b0
 [<0000000040100ce0>] start_kernel+0xb8/0x668

Kernel panic - not syncing: Bad Address (null pointer deref?)
---[ end Kernel panic - not syncing: Bad Address (null pointer deref?)



-- 
Meelis Roos (mroos@linux.ee)


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On 10.10.2016 08:04, Meelis Roos wrote:
>>>>>> Even if you fix the kernel with the patches above, you still may run
>>>>>> into the palo bug. I've just pushed a fix for it into the palo tree:
>>>>>> https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/commit/?id=70bd7a9a41e318c0575755a78c4d18ad97495c47
>>>>>>
>>>>>> If you rebuild palo, please make sure to install the new ipl boot loader into
>>>>>> the palo partition of your boot disc. palo should report at bootup version 1.96.
>>>>
>>>> Same here. Please pull latest version, and install it:
>>>> https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/
>>>
>>> palo ipl 1.96 http://www.parisc-linux.org - Sun, 08 Oct 2016 22:40:31 +0100
>>>
>>> Just palo with newst upstream kernel git did not change anything, so 
>>> it's not palo.
>>>
>>>
>>> Pulled 
>>> git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git 
>>> but it seems to be alreay up to date - these commits are in my tested 
>>> upstream that broke the booting?
>>
>> Really? I just updated it a few hours ago. Please pull the "for-next" branch.
>>
>> Can you send the last line of your "System.map" file, e.g.
>> 0000000041f00000 B _end
>>
>> What is the output of palo when booting ?
> 
> Sorry, I pulled from the default branch before, now for-next and it did 
> pull stuff.
> 
> System.map ends with
> 
> 0000000040900000 B _end
> 
> 
> 
> HARD Booted.
> palo ipl 1.96 http://www.parisc-linux.org - Sun, 08 Oct 2016 22:40:31 +0100
> 
> Partition Start(MB) End(MB) Id Type
> 1               1      32   f0 Palo
> 2              33     224   83 ext2
> 3             225   31696   83 ext2
> 4           31697   34715   82 swap
> 
> PALO(F0) partition contains:
> 
> Command line for kernel: 'root=/dev/sdb3 console=ttyS1 
> palo_kernel=2/vmlinux'
> Selected kernel: /vmlinux from partition 2
> ELF64 executable
> Entry 00100000 first 00100000 n 5
> Segment 0 load 00100000 size 135536 mediaptr 0x1000
> Segment 1 load 00122000 size 23320 mediaptr 0x23000
> Segment 2 load 00200000 size 4541488 mediaptr 0x29000
> Segment 3 load 00655000 size 1393916 mediaptr 0x47e000
> Segment 4 load 00800000 size 1045640 mediaptr 0x5d3000
> Branching to kernel entry point 0x00100000.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org
> 
> Linux version 4.8.0-11292-gf79b076 (mroos@rp3410) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #82 Mon Oct 10 01:25:58 EEST 2016
> unwind_init: start = 0x40770e1c, end = 0x407a94fc, entries = 14446
> FP[0] enabled: Rev 1 Model 20
> The 64-bit Kernel has started...
> Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
> bootconsole [ttyB0] enabled
> Initialized PDC Console for debugging.
> Determining PDC firmware type: 64 bit PAT.
> model 00008860 00000491 00000000 00000002 3e45475d0860fe3d 100000f0 00000008 000000b2 000000b2
> vers  00000302
> CPUID vers 20 rev 5 (0x00000285)
> capabilities 0x35
> model 9000/800/rp3410  
> parisc_cache_init: Only equivalent aliasing supported!
> Memory Ranges:
>  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
>  1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
> Total Memory: 2046 MB

2046 MB ???
That's strange, it should be 2048 MB.

Can you check in your firmware "service" or "Configuration" menu, if it 
reports some entries in your PDT (Page Deallocation Table) ?
What happens if you clean the PDT entries (see firmware menu) and boot again?

Helge
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From - Thu Nov 08 21:39:12 2018
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> > Memory Ranges:
> >  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
> >  1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
> > Total Memory: 2046 MB
> 
> 2046 MB ???
> That's strange, it should be 2048 MB.
> 
> Can you check in your firmware "service" or "Configuration" menu, if it 
> reports some entries in your PDT (Page Deallocation Table) ?
> What happens if you clean the PDT entries (see firmware menu) and boot again?

Service Menu: Enter command > pdt

PAGE DEALLOCATION TABLE INFORMATION

   Location      Address       Type        Perm  Page  
   ------------  ------------  ----------  ----  ---------

   No Entries in Page Deallocation Table 

   PDT Entries Used: 0
   PDT Entries Free: 3000
   PDT Total Size:   3000

Seems it is not PDT?

-- 
Meelis Roos (mroos@linux.ee)


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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.api/21596>

Add missing arch code - arch_trace_is_compat_syscall and
arch_syscall_addr

Signed-off-by: Marcin Nowakowski <marcin.nowakowski-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
Cc: Steven Rostedt <rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org>
Cc: Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
Cc: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
---
 arch/parisc/include/asm/ftrace.h | 10 ++++++++++
 arch/parisc/kernel/Makefile      |  1 +
 arch/parisc/kernel/ftrace.c      | 15 +++++++++++++++
 3 files changed, 26 insertions(+)

diff --git a/arch/parisc/include/asm/ftrace.h b/arch/parisc/include/asm/ftrace.h
index d635c6b..0b54385 100644
--- a/arch/parisc/include/asm/ftrace.h
+++ b/arch/parisc/include/asm/ftrace.h
@@ -12,6 +12,16 @@ extern unsigned long return_address(unsigned int);
 
 #define ftrace_return_address(n) return_address(n)
 
+#if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_COMPAT)
+#include <linux/compat.h>
+
+#define ARCH_COMPAT_SYSCALL_NUMBERS_OVERLAP 1
+static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs)
+{
+	return in_compat_syscall();
+}
+#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_COMPAT */
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_PARISC_FTRACE_H */
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 69a1118..7d1fd39 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -31,3 +31,4 @@ obj64-$(CONFIG_AUDIT)	+= compat_audit.o
 obj-$(CONFIG_64BIT)	+= perf.o perf_asm.o $(obj64-y)
 obj-$(CONFIG_FUNCTION_TRACER)		+= ftrace.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)	+= ftrace.o
+obj-$(CONFIG_FTRACE_SYSCALLS)	+= ftrace.o
diff --git a/arch/parisc/kernel/ftrace.c b/arch/parisc/kernel/ftrace.c
index 5a5506a..41db7ca 100644
--- a/arch/parisc/kernel/ftrace.c
+++ b/arch/parisc/kernel/ftrace.c
@@ -56,6 +56,7 @@ static void __hot prepare_ftrace_return(unsigned long *parent,
 }
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
 
+#ifdef CONFIG_FUNCTION_TRACER
 void notrace __hot ftrace_function_trampoline(unsigned long parent,
 				unsigned long self_addr,
 				unsigned long org_sp_gr3)
@@ -85,4 +86,18 @@ void notrace __hot ftrace_function_trampoline(unsigned long parent,
 	}
 #endif
 }
+#endif /* CONFIG_FUNCTION_TRACER */
+#if (defined CONFIG_FTRACE_SYSCALLS) && (defined CONFIG_64BIT)
+extern const unsigned int sys_call_table64[];
 
+unsigned long __init arch_syscall_addr(int nr, bool compat)
+{
+#ifdef CONFIG_COMPAT
+	if (compat)
+		return (unsigned long)sys_call_table[nr];
+#endif /* CONFIG_COMPAT */
+
+	return (unsigned long)sys_call_table64[nr];
+}
+
+#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_64BIT */
-- 
2.7.4


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Subject: Re: parisc crash on boot with 4.8+git
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* Meelis Roos <mroos@linux.ee>:
> > > Memory Ranges:
> > >  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
> > >  1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
> > > Total Memory: 2046 MB

Meelis and myself debugged the crash off-list.
It turns out, that I missed to zero-initialize the new memblocks.
Patch below fixes this.

Helge

------------
parisc: Zero-initialize newly alloced memblock

Commit 4fe9e1d957e4 ("parisc: Drop bootmem and switch to memblock")
switched to the memblock allocator, but missed to zero-initialize the
newly allocated memblocks. This lead to crashes on some machines like
the rp3410.

Fixes: 4fe9e1d957e4 ("parisc: Drop bootmem and switch to memblock")
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 356f384..62ac801 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -105,6 +105,8 @@ static void * __init get_memblock(unsigned long size)
 	else
 		panic("get_memblock() failed.\n");
 
+	memset(__va(phys), 0, size);
+
 	return __va(phys);
 }
 


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Subject: [PATCH] parisc: Show trap name in kernel crash
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Show the real trap name when the kernel crashes.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/traps.h b/arch/parisc/include/asm/traps.h
index 5e953ab..6367023 100644
--- a/arch/parisc/include/asm/traps.h
+++ b/arch/parisc/include/asm/traps.h
@@ -11,6 +11,7 @@ void parisc_terminate(char *msg, struct pt_regs *regs,
 void die_if_kernel(char *str, struct pt_regs *regs, long err);
 
 /* mm/fault.c */
+const char *trap_name(unsigned long code);
 void do_page_fault(struct pt_regs *regs, unsigned long code,
 		unsigned long address);
 #endif
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 97d6b20..378df92 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -458,8 +458,8 @@ void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long o
 	}
 
 	printk("\n");
-	printk(KERN_CRIT "%s: Code=%d regs=%p (Addr=" RFMT ")\n",
-			msg, code, regs, offset);
+	pr_crit("%s: Code=%d (%s) regs=%p (Addr=" RFMT ")\n",
+		msg, code, trap_name(code), regs, offset);
 	show_regs(regs);
 
 	spin_unlock(&terminate_lock);
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index d64f1c8..8ff9253 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -204,6 +204,16 @@ static const char * const trap_description[] = {
 	[28] "Unaligned data reference trap",
 };
 
+const char *trap_name(unsigned long code)
+{
+	const char *t = NULL;
+
+	if (code < ARRAY_SIZE(trap_description))
+		t = trap_description[code];
+
+	return t ? t : "Unknown trap";
+}
+
 /*
  * Print out info about fatal segfaults, if the show_unhandled_signals
  * sysctl is set:
@@ -213,8 +223,6 @@ show_signal_msg(struct pt_regs *regs, unsigned long code,
 		unsigned long address, struct task_struct *tsk,
 		struct vm_area_struct *vma)
 {
-	const char *trap_name = NULL;

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Hi Linus,

please pull some final updates and fixes for this merge window for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.9-2

Changes include:
 
- Fix boot problems with new memblock allocator on rp3410 machine

- Increase initial kernel mapping size for 32- and 64-bit kernels, this allows
  to boot bigger kernels which have many modules built-in

- Fix kernel layout regarding __gp and move exception table into RO section

- Show trap names in crashes, use extable.h header instead of module.h

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (5):
      parisc: Increase initial kernel mapping size
      parisc: Fix kernel memory layout regarding position of __gp
      parisc: Move exception table into read-only section
      parisc: Zero-initialize newly alloced memblock
      parisc: Show trap name in kernel crash

Paul Gortmaker (1):
      parisc: Migrate exception table users off module.h and onto extable.h

 arch/parisc/include/asm/pgtable.h |  6 +++---
 arch/parisc/include/asm/traps.h   |  1 +
 arch/parisc/kernel/traps.c        |  4 ++--
 arch/parisc/kernel/vmlinux.lds.S  | 14 +++++++++-----
 arch/parisc/mm/fault.c            | 19 ++++++++++++-------
 arch/parisc/mm/init.c             |  2 ++
 6 files changed, 29 insertions(+), 17 deletions(-)


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Subject: timekeeping: Cycle offset (32) is larger than allowed by the
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When enabling CONFIG_DEBUG_TIMEKEEPING, I see on kernel 4.8 git head
those warnings on the parisc architecture:

Linux version 4.8.0-64bit+ (deller@p100.box) (gcc version 4.9.2 20150212 (Red Hat Cross 4.9.2-5) (GCC) ) #516 SMP Wed Oct 12 22:52:58 CEST 2016
...
clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0xacf9151134, max_idle_ns: 440795214493 ns
WARNING: timekeeping: Cycle offset (32) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
         timekeeping: Your kernel is sick, but tries to cope by capping time updates
WARNING: timekeeping: Cycle offset (42) is larger than allowed by the 'jiffies' clock's max_cycles value (10): time overflow danger
         timekeeping: Your kernel is sick, but tries to cope by capping time updates
...
At this stage the jiffies clocksource was not yet registered (at least not mentioned in the bootlog).
This warning happens over and over. Maybe it should be rate-limited too?

Comparing to 4.7 where CONFIG_DEBUG_TIMEKEEPING is not enabled I see:
root@c8000:~# dmesg | grep clock
[    0.000000] clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0xcf914c9718, max_idle_ns: 440795231327 ns
[    0.873644] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    7.968087] clocksource: Switched to clocksource cr16

Am I somehow missing to initialize the max_cycles field of the jiffies clocksource
on the parisc architecture ?

Helge
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From: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.api
Subject: [PATCH v4 12/12] parisc/tracing: fix compat syscall handling
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Add missing arch code - arch_trace_is_compat_syscall and
arch_syscall_addr

Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/include/asm/ftrace.h | 10 ++++++++++
 arch/parisc/kernel/Makefile      |  1 +
 arch/parisc/kernel/ftrace.c      | 15 +++++++++++++++
 3 files changed, 26 insertions(+)

diff --git a/arch/parisc/include/asm/ftrace.h b/arch/parisc/include/asm/ftrace.h
index d635c6b..0b54385 100644
--- a/arch/parisc/include/asm/ftrace.h
+++ b/arch/parisc/include/asm/ftrace.h
@@ -12,6 +12,16 @@ extern unsigned long return_address(unsigned int);
 
 #define ftrace_return_address(n) return_address(n)
 
+#if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_COMPAT)
+#include <linux/compat.h>
+
+#define ARCH_COMPAT_SYSCALL_NUMBERS_OVERLAP 1
+static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs)
+{
+	return in_compat_syscall();
+}
+#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_COMPAT */
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_PARISC_FTRACE_H */
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 69a1118..7d1fd39 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -31,3 +31,4 @@ obj64-$(CONFIG_AUDIT)	+= compat_audit.o
 obj-$(CONFIG_64BIT)	+= perf.o perf_asm.o $(obj64-y)
 obj-$(CONFIG_FUNCTION_TRACER)		+= ftrace.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)	+= ftrace.o
+obj-$(CONFIG_FTRACE_SYSCALLS)	+= ftrace.o
diff --git a/arch/parisc/kernel/ftrace.c b/arch/parisc/kernel/ftrace.c
index 5a5506a..41db7ca 100644
--- a/arch/parisc/kernel/ftrace.c
+++ b/arch/parisc/kernel/ftrace.c
@@ -56,6 +56,7 @@ static void __hot prepare_ftrace_return(unsigned long *parent,
 }
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
 
+#ifdef CONFIG_FUNCTION_TRACER
 void notrace __hot ftrace_function_trampoline(unsigned long parent,
 				unsigned long self_addr,
 				unsigned long org_sp_gr3)
@@ -85,4 +86,18 @@ void notrace __hot ftrace_function_trampoline(unsigned long parent,
 	}
 #endif
 }
+#endif /* CONFIG_FUNCTION_TRACER */
+#if (defined CONFIG_FTRACE_SYSCALLS) && (defined CONFIG_64BIT)
+extern const unsigned int sys_call_table64[];
 
+unsigned long __init arch_syscall_addr(int nr, bool compat)
+{
+#ifdef CONFIG_COMPAT
+	if (compat)
+		return (unsigned long)sys_call_table[nr];
+#endif /* CONFIG_COMPAT */
+
+	return (unsigned long)sys_call_table64[nr];
+}
+
+#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_64BIT */
-- 
2.7.4

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From: Helge Deller <deller@gmx.de>
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Hi all,

I was asked about how to remotely find out the board/CPU temperature
of a HP C8000 workstation. Here is the way I found on Debian Linux:

Instruct the kernel to load the IPMI modules:
 modprobe ipmi_si
 modprobe ipmi_devintf

You need to have the "ipmitool" installed:
 apt-get install ipmitool

Then, you can run "ipmitool sdr" to get quite some information:
root@savaria:/# ipmitool sdr
Chassis Intrus   | 0x01              | ok
Chassis Open     | 0x00              | ok
Security         | Not Readable      | ns
Power Button     | 0x01              | ok
Power Button     | 0x00              | ok
Clear CMOS Jmpr  | 0x00              | ok
Safe Mode Jmpr   | 0x00              | ok
Clr Passwd Jmpr  | 0x00              | ok
Rsvd Jmpr        | Not Readable      | ns
Rsvd2 Jmpr       | Not Readable      | ns
Watchdog Timer   | Not Readable      | ns
Cooling 2 (CPU)  | 0x01              | ok
Cooling 3 (Mem)  | 0x01              | ok
Cooling 4 (Disk) | 0x01              | ok
Wake-on-LAN      | Not Readable      | ns
Missing Device   | Not Readable      | ns
Power Supply     | 0x01              | ok
Power Control    | 0x01              | ok
Pwr Pod 0 Fault  | 0x00              | ok
Pwr Pod 1 Fault  | Not Readable      | ns
Battery Voltage  | 0x00              | ok
Over-Voltage     | 0x00              | ok
Power Good       | 0x00              | ok
Ambient Temp     | 24 degrees C      | ok
Processor 0 Temp | 86 degrees C      | ok
Processor 1 Temp | no reading        | ns
Chassis Fan Tach | disabled          | ns
CPU0 Fan Tach    | disabled          | ns
CPU1 Fan Tach    | disabled          | ns
Memory Fan Tach  | disabled          | ns
Disk Fan Tach    | disabled          | ns
Chassis Fan      | 0x00              | ok
CPU0 Fan         | 0x00              | ok
CPU1 Fan         | 0x00              | ok
Memory Fan       | 0x00              | ok
Disk Fan         | 0x00              | ok
ACPI State       | 0x01              | ok
TOC Interrupt    | 0x00              | ok
SDR Time Set     | 0x00              | ok
SEL Time Set     | 0x00              | ok
Intrnl Watchdog  | Not Readable      | ns


Another temperature information can be gathered from the 
built-in SATA/SCSI drives:

Install smartmontools:
 apt-get install smartmontools

Get drive information:
 smartctl --all /dev/sda | grep -i temp
Temperature Warning:  Enabled
Current Drive Temperature:     44 C
Drive Trip Temperature:        68 C


Any other ideas ?
Additionally I wonder if it's possible to get more information filled in
for IPMI on C8000 machines. E.g. is it possible on HP-UX to remotely turn
the machine on and off ?

Helge
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Hi Helge,

On 2016-10-14 9:30 AM, Helge Deller wrote:
> Additionally I wonder if it's possible to get more information filled in
> for IPMI on C8000 machines. E.g. is it possible on HP-UX to remotely turn
> the machine on and off ?
>
I had wondered that as well.  On rp3440, I see messages during boot that 
indicate that
the ipmi doesn't know how to do it.

I will try ipmitool on rp3440 tonight.

Dave

-- 
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On 2016-10-14, at 9:51 AM, John David Anglin wrote:

> Hi Helge,
> 
> On 2016-10-14 9:30 AM, Helge Deller wrote:
>> Additionally I wonder if it's possible to get more information filled in
>> for IPMI on C8000 machines. E.g. is it possible on HP-UX to remotely turn
>> the machine on and off ?
>> 
> I had wondered that as well.  On rp3440, I see messages during boot that indicate that
> the ipmi doesn't know how to do it.
> 
> I will try ipmitool on rp3440 tonight.


mx3210:/home/dave# ipmitool sdr
Chassis Intrus   | 0x00              | ok
Chassis Open     | 0x00              | ok
Security         | Not Readable      | ns
Power Button     | 0x00              | ok
Power Button     | 0x00              | ok
Clear CMOS Jmpr  | Not Readable      | ns
Safe Mode Jmpr   | Not Readable      | ns
Clr Passwd Jmpr  | 0x00              | ok
Rsvd Jmpr        | Not Readable      | ns
Rsvd2 Jmpr       | Not Readable      | ns
Watchdog Timer   | Not Readable      | ns
Cooling 1 (Sys)  | 0x01              | ok
Cooling 2 (Mem)  | 0x01              | ok
Cooling 3 (Disk) | 0x01              | ok
Wake-on-LAN 100  | Not Readable      | ns
Wake-on-LAN 1Gb  | Not Readable      | ns
Missing Device   | Not Readable      | ns
SAF-TE Card      | Not Readable      | ns
Power Supply 1   | 0x01              | ok
Power Supply 2   | 0x00              | ok
Pwr Spply 1 Ctrl | Not Readable      | ns
Pwr Spply 2 Ctrl | Not Readable      | ns
Power Redundancy | 0x01              | ok
AC Pwr Supply 1  | Not Readable      | ns
AC Pwr Supply 2  | Not Readable      | ns
12V Pwr Supply 1 | 0x00              | ok
12V Pwr Supply 2 | 0x00              | ok
12V Rail 0       | 0x00              | ok
12V Rail 1       | 0x00              | ok
12V Rail 2       | 0x00              | ok
12V Rail 3       | 0x00              | ok
12V Rail 4       | 0x00              | ok
Battery Voltage  | 0x00              | ok
Over-Voltage     | 0x00              | ok
Power Good       | 0x00              | ok
Ambient Temp     | 22 degrees C      | ok
Processor 0 Temp | 56 degrees C      | ok
Processor 1 Temp | 56 degrees C      | ok
Fan 1R Tach      | 2610 RPM          | ok
Fan 1L Tach      | 2670 RPM          | ok
Fan CPU0 Tach    | 4470 RPM          | ok
Fan CPU1 Tach    | 4380 RPM          | ok
Fan 2F Tach      | 3870 RPM          | ok
Fan 2B Tach      | 4110 RPM          | ok
Fan 3F Tach      | 3090 RPM          | ok
Fan 3B Tach      | 2790 RPM          | ok
Fan 1R (Power)   | 0x00              | ok
Fan 1L (Power)   | 0x00              | ok
Fan CPU0 (R)     | 0x00              | ok
Fan CPU1 (L)     | 0x00              | ok
Fan 2F (Memory)  | 0x00              | ok
Fan 2B (Memory)  | 0x00              | ok
Fan 3F (Disk)    | 0x00              | ok
Fan 3B (Disk)    | 0x00              | ok
SCSI Device 0    | 0x01              | ok
SCSI Device 1    | 0x00              | ok
SCSI Device 2    | 0x01              | ok
SCSI ChA Cable   | 0x01              | ok
SCSI ChB Cable   | 0x01              | ok
SCSI ChExt Cable | 0x01              | ok
ACPI State       | 0x01              | ok
TOC Interrupt    | 0x00              | ok
SDR Time Set     | 0x00              | ok
SEL Time Set     | 0x00              | ok
Intrnl Watchdog  | Not Readable      | ns

--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:39:13 2018
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Add missing code for userspace executable randomization, e.g.
applications compiled with the gcc -pie option.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 71c4a3a..e5cfadb 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -7,6 +7,7 @@ config PARISC
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_SYSCALL_TRACEPOINTS
 	select ARCH_WANT_FRAME_POINTERS
+	select ARCH_HAS_ELF_RANDOMIZE
 	select RTC_CLASS
 	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index 78c9fd3..a6b2a42 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -348,9 +348,10 @@ struct pt_regs;	/* forward declaration... */
 
 #define ELF_HWCAP	0
 
-#define STACK_RND_MASK	(is_32bit_task() ? \
-				0x7ff >> (PAGE_SHIFT - 12) : \
-				0x3ffff >> (PAGE_SHIFT - 12))
+/* Masks for stack and mmap randomization */
+#define BRK_RND_MASK	(is_32bit_task() ? 0x07ffUL : 0x3ffffUL)
+#define MMAP_RND_MASK	(is_32bit_task() ? 0x1fffUL : 0x3ffffUL)
+#define STACK_RND_MASK	MMAP_RND_MASK
 
 struct mm_struct;
 extern unsigned long arch_randomize_brk(struct mm_struct *);
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 4063943..ea6603e 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -276,11 +276,7 @@ void *dereference_function_descriptor(void *ptr)
 
 static inline unsigned long brk_rnd(void)
 {
-	/* 8MB for 32bit, 1GB for 64bit */
-	if (is_32bit_task())
-		return (get_random_int() & 0x7ffUL) << PAGE_SHIFT;
-	else
-		return (get_random_int() & 0x3ffffUL) << PAGE_SHIFT;
+	return (get_random_int() & BRK_RND_MASK) << PAGE_SHIFT;
 }
 
 unsigned long arch_randomize_brk(struct mm_struct *mm)
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 0a393a0..a81e177 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -225,19 +225,17 @@ static unsigned long mmap_rnd(void)
 {
 	unsigned long rnd = 0;
 
-	/*
-	*  8 bits of randomness in 32bit mmaps, 20 address space bits
-	* 28 bits of randomness in 64bit mmaps, 40 address space bits
-	*/
-	if (current->flags & PF_RANDOMIZE) {
-		if (is_32bit_task())
-			rnd = get_random_int() % (1<<8);
-		else
-			rnd = get_random_int() % (1<<28);
-	}
+	if (current->flags & PF_RANDOMIZE)
+		rnd = get_random_int() & MMAP_RND_MASK;
+
 	return rnd << PAGE_SHIFT;
 }
 
+unsigned long arch_mmap_rnd(void)
+{
+	return (get_random_int() & MMAP_RND_MASK) << PAGE_SHIFT;
+}
+
 static unsigned long mmap_legacy_base(void)
 {
 	return TASK_UNMAPPED_BASE + mmap_rnd();
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From - Thu Nov 08 21:39:14 2018
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From: Alexander Duyck <alexander.h.duyck@intel.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.network,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [net-next PATCH RFC 16/26] arch/parisc: Add option to skip DMA sync
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Cc: Helge Deller <deller@gmx.de>, brouer@redhat.com,
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This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to
avoid invoking cache line invalidation if the driver will just handle it
via a sync_for_cpu or sync_for_device call.

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
---
 arch/parisc/kernel/pci-dma.c |   20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 02d9ed0..be55ede 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -459,7 +459,9 @@ static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
 	void *addr = page_address(page) + offset;
 	BUG_ON(direction == DMA_NONE);
 
-	flush_kernel_dcache_range((unsigned long) addr, size);
+	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		flush_kernel_dcache_range((unsigned long) addr, size);
+
 	return virt_to_phys(addr);
 }
 
@@ -469,8 +471,11 @@ static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 {
 	BUG_ON(direction == DMA_NONE);
 
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+		return;
+
 	if (direction == DMA_TO_DEVICE)
-	    return;
+		return;
 
 	/*
 	 * For PCI_DMA_FROMDEVICE this flush is not necessary for the
@@ -479,7 +484,6 @@ static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 	 */
 
 	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle), size);
-	return;
 }
 
 static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
@@ -496,6 +500,10 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
 
 		sg_dma_address(sg) = (dma_addr_t) virt_to_phys(vaddr);
 		sg_dma_len(sg) = sg->length;
+
+		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+			continue;
+
 		flush_kernel_dcache_range(vaddr, sg->length);
 	}
 	return nents;
@@ -510,14 +518,16 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 
 	BUG_ON(direction == DMA_NONE);
 
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+		return;
+
 	if (direction == DMA_TO_DEVICE)
-	    return;
+		return;
 
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
 	for_each_sg(sglist, sg, nents, i)
 		flush_kernel_vmap_range(sg_virt(sg), sg->length);
-	return;
 }
 
 static void pa11_dma_sync_single_for_cpu(struct device *dev,

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Re-enable interrupts early
Date: Mon, 24 Oct 2016 21:55:58 +0200
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Xref: news.gmane.org gmane.linux.ports.parisc:27012
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/27012>

Since kernel 3.9 we re-enable interrupts quite late due to commit c207a76bf15
("parisc: only re-enable interrupts if we need to schedule or deliver signals
when returning to userspace"). At that time the parisc kernel had no dedicated
IRQ stack, and this commit prevented kernel stack overflows.

But since commit 200c880420a ("parisc: implement irq stacks") we now have an
IRQ stack, so we may be safe now.  And when CONFIG_DEBUG_STACKOVERFLOW=y is
enabled, we can even check at runtime for overflows.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 4fcff2d..ad4cb16 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -878,6 +878,9 @@ ENTRY_CFI(syscall_exit_rfi)
 	STREG   %r19,PT_SR7(%r16)
 
 intr_return:
+	/* NOTE: Need to enable interrupts incase we schedule. */
+	ssm     PSW_SM_I, %r0
+
 	/* check for reschedule */
 	mfctl   %cr30,%r1
 	LDREG   TI_FLAGS(%r1),%r19	/* sched.h: TIF_NEED_RESCHED */
@@ -904,11 +907,6 @@ intr_check_sig:
 	LDREG	PT_IASQ1(%r16), %r20
 	cmpib,COND(=),n 0,%r20,intr_restore /* backward */
 
-	/* NOTE: We need to enable interrupts if we have to deliver
-	 * signals. We used to do this earlier but it caused kernel
-	 * stack overflows. */
-	ssm     PSW_SM_I, %r0
-
 	copy	%r0, %r25			/* long in_syscall = 0 */
 #ifdef CONFIG_64BIT
 	ldo	-16(%r30),%r29			/* Reference param save area */
@@ -960,10 +958,6 @@ intr_do_resched:
 	cmpib,COND(=)	0, %r20, intr_do_preempt
 	nop
 
-	/* NOTE: We need to enable interrupts if we schedule.  We used
-	 * to do this earlier but it caused kernel stack overflows. */
-	ssm     PSW_SM_I, %r0

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Newsgroups: gmane.linux.kernel.mm,gmane.linux.network,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [net-next PATCH 17/27] arch/parisc: Add option to skip DMA sync as
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This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to
avoid invoking cache line invalidation if the driver will just handle it
via a sync_for_cpu or sync_for_device call.

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
---
 arch/parisc/kernel/pci-dma.c |   20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 02d9ed0..be55ede 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -459,7 +459,9 @@ static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
 	void *addr = page_address(page) + offset;
 	BUG_ON(direction == DMA_NONE);
 
-	flush_kernel_dcache_range((unsigned long) addr, size);
+	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		flush_kernel_dcache_range((unsigned long) addr, size);
+
 	return virt_to_phys(addr);
 }
 
@@ -469,8 +471,11 @@ static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 {
 	BUG_ON(direction == DMA_NONE);
 
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+		return;
+
 	if (direction == DMA_TO_DEVICE)
-	    return;
+		return;
 
 	/*
 	 * For PCI_DMA_FROMDEVICE this flush is not necessary for the
@@ -479,7 +484,6 @@ static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 	 */
 
 	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle), size);
-	return;
 }
 
 static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
@@ -496,6 +500,10 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
 
 		sg_dma_address(sg) = (dma_addr_t) virt_to_phys(vaddr);
 		sg_dma_len(sg) = sg->length;
+
+		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+			continue;
+
 		flush_kernel_dcache_range(vaddr, sg->length);
 	}
 	return nents;
@@ -510,14 +518,16 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 
 	BUG_ON(direction == DMA_NONE);
 
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+		return;
+
 	if (direction == DMA_TO_DEVICE)
-	    return;
+		return;
 
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
 	for_each_sg(sglist, sg, nents, i)
 		flush_kernel_vmap_range(sg_virt(sg), sg->length);
-	return;
 }
 
 static void pa11_dma_sync_single_for_cpu(struct device *dev,

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Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.alsa.devel,gmane.linux.ports.parisc,gmane.linux.kernel.janitors,gmane.linux.kernel
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Xref: news.gmane.org gmane.linux.ports.ppc.embedded:102800 gmane.linux.alsa.devel:160479 gmane.linux.ports.parisc:27014 gmane.linux.kernel.janitors:40871 gmane.linux.kernel:2335521
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ppc.embedded/102800>

Someone was just mentioning in another thread that removing the check
from iounmap() is not portable to other arches and then I remembered
that Markus removed a bunch of these.

We should consider reverting this, perhaps?

regards,
dan carpenter

On Sun, Jan 04, 2015 at 02:36:01PM +0100, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sat, 3 Jan 2015 22:55:54 +0100
> 
> The iounmap() function performs also input parameter validation.
> Thus the test around the call is not needed.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
> ---
>  sound/aoa/soundbus/i2sbus/core.c | 13 ++++++-------
>  sound/arm/aaci.c                 |  4 ++--
>  sound/drivers/ml403-ac97cr.c     |  3 +--
>  sound/isa/msnd/msnd_pinnacle.c   |  3 +--
>  sound/parisc/harmony.c           |  4 +---
>  sound/pci/ad1889.c               |  5 +----
>  sound/pci/asihpi/hpioctl.c       |  6 ++----
>  sound/pci/atiixp.c               |  3 +--
>  sound/pci/atiixp_modem.c         |  3 +--
>  sound/pci/aw2/aw2-alsa.c         |  4 +---
>  sound/pci/bt87x.c                |  3 +--
>  sound/pci/cs4281.c               |  6 ++----
>  sound/pci/cs46xx/cs46xx_lib.c    |  4 ++--
>  sound/pci/ctxfi/cthw20k1.c       |  5 +----
>  sound/pci/ctxfi/cthw20k2.c       |  5 +----
>  sound/pci/echoaudio/echoaudio.c  |  6 +-----
>  sound/pci/hda/hda_intel.c        |  3 +--
>  sound/pci/lola/lola.c            |  6 ++----
>  sound/pci/mixart/mixart.c        |  7 +++----
>  sound/pci/nm256/nm256.c          |  6 ++----
>  sound/pci/rme9652/hdsp.c         |  4 +---
>  sound/pci/rme9652/hdspm.c        |  4 +---
>  sound/pci/rme9652/rme9652.c      |  3 +--
>  sound/pci/sis7019.c              |  5 +----
>  sound/pci/ymfpci/ymfpci_main.c   |  3 +--
>  sound/ppc/pmac.c                 | 15 +++++----------
>  26 files changed, 43 insertions(+), 90 deletions(-)
> 
> diff --git a/sound/aoa/soundbus/i2sbus/core.c b/sound/aoa/soundbus/i2sbus/core.c
> index 4e2b4fb..7835045 100644
> --- a/sound/aoa/soundbus/i2sbus/core.c
> +++ b/sound/aoa/soundbus/i2sbus/core.c
> @@ -74,10 +74,9 @@ static void i2sbus_release_dev(struct device *dev)
>  	int i;
>  
>  	i2sdev = container_of(dev, struct i2sbus_dev, sound.ofdev.dev);
> -
> - 	if (i2sdev->intfregs) iounmap(i2sdev->intfregs);
> - 	if (i2sdev->out.dbdma) iounmap(i2sdev->out.dbdma);
> - 	if (i2sdev->in.dbdma) iounmap(i2sdev->in.dbdma);
> +	iounmap(i2sdev->intfregs);
> +	iounmap(i2sdev->out.dbdma);
> +	iounmap(i2sdev->in.dbdma);
>  	for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++)
>  		release_and_free_resource(i2sdev->allocated_resource[i]);
>  	free_dbdma_descriptor_ring(i2sdev, &i2sdev->out.dbdma_ring);
> @@ -318,9 +317,9 @@ static int i2sbus_add_dev(struct macio_dev *macio,
>  			free_irq(dev->interrupts[i], dev);
>  	free_dbdma_descriptor_ring(dev, &dev->out.dbdma_ring);
>  	free_dbdma_descriptor_ring(dev, &dev->in.dbdma_ring);
> -	if (dev->intfregs) iounmap(dev->intfregs);
> -	if (dev->out.dbdma) iounmap(dev->out.dbdma);
> -	if (dev->in.dbdma) iounmap(dev->in.dbdma);
> +	iounmap(dev->intfregs);
> +	iounmap(dev->out.dbdma);
> +	iounmap(dev->in.dbdma);
>  	for (i=0;i<3;i++)
>  		release_and_free_resource(dev->allocated_resource[i]);
>  	mutex_destroy(&dev->lock);
> diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
> index 0e83a73..4140b1b 100644
> --- a/sound/arm/aaci.c
> +++ b/sound/arm/aaci.c
> @@ -889,8 +889,8 @@ static int aaci_probe_ac97(struct aaci *aaci)
>  static void aaci_free_card(struct snd_card *card)
>  {
>  	struct aaci *aaci = card->private_data;
> -	if (aaci->base)
> -		iounmap(aaci->base);
> +
> +	iounmap(aaci->base);
>  }
>  
>  static struct aaci *aaci_init_card(struct amba_device *dev)
> diff --git a/sound/drivers/ml403-ac97cr.c b/sound/drivers/ml403-ac97cr.c
> index ec01de1..bdcb572 100644
> --- a/sound/drivers/ml403-ac97cr.c
> +++ b/sound/drivers/ml403-ac97cr.c
> @@ -1094,8 +1094,7 @@ static int snd_ml403_ac97cr_free(struct snd_ml403_ac97cr *ml403_ac97cr)
>  	if (ml403_ac97cr->capture_irq >= 0)
>  		free_irq(ml403_ac97cr->capture_irq, ml403_ac97cr);
>  	/* give back "port" */
> -	if (ml403_ac97cr->port != NULL)
> -		iounmap(ml403_ac97cr->port);
> +	iounmap(ml403_ac97cr->port);
>  	kfree(ml403_ac97cr);
>  	PDEBUG(INIT_INFO, "free(): (done)\n");
>  	return 0;
> diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c
> index 65b3682..4c07266 100644
> --- a/sound/isa/msnd/msnd_pinnacle.c
> +++ b/sound/isa/msnd/msnd_pinnacle.c
> @@ -627,8 +627,7 @@ static int snd_msnd_attach(struct snd_card *card)
>  	return 0;
>  
>  err_release_region:
> -	if (chip->mappedbase)
> -		iounmap(chip->mappedbase);
> +	iounmap(chip->mappedbase);
>  	release_mem_region(chip->base, BUFFSIZE);
>  	release_region(chip->io, DSP_NUMIO);
>  	free_irq(chip->irq, chip);
> diff --git a/sound/parisc/harmony.c b/sound/parisc/harmony.c
> index 29604a2..f2350c1 100644
> --- a/sound/parisc/harmony.c
> +++ b/sound/parisc/harmony.c
> @@ -893,9 +893,7 @@ snd_harmony_free(struct snd_harmony *h)
>  	if (h->irq >= 0)
>  		free_irq(h->irq, h);
>  
> -	if (h->iobase)
> -		iounmap(h->iobase);
> -
> +	iounmap(h->iobase);
>  	kfree(h);
>  	return 0;
>  }
> diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
> index 547ee30..0de3129 100644
> --- a/sound/pci/ad1889.c
> +++ b/sound/pci/ad1889.c
> @@ -853,12 +853,9 @@ snd_ad1889_free(struct snd_ad1889 *chip)
>  		free_irq(chip->irq, chip);
>  
>  skip_hw:
> -	if (chip->iobase)
> -		iounmap(chip->iobase);
> -
> +	iounmap(chip->iobase);
>  	pci_release_regions(chip->pci);
>  	pci_disable_device(chip->pci);
> -
>  	kfree(chip);
>  	return 0;
>  }
> diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c
> index 72af66b..67d1133 100644
> --- a/sound/pci/asihpi/hpioctl.c
> +++ b/sound/pci/asihpi/hpioctl.c
> @@ -541,10 +541,8 @@ void asihpi_adapter_remove(struct pci_dev *pci_dev)
>  	hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
>  
>  	/* unmap PCI memory space, mapped during device init. */
> -	for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) {
> -		if (pci.ap_mem_base[idx])
> -			iounmap(pci.ap_mem_base[idx]);
> -	}
> +	for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; ++idx)
> +		iounmap(pci.ap_mem_base[idx]);
>  
>  	if (pa->irq)
>  		free_irq(pa->irq, pa);
> diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
> index 9c1c445..d24188f 100644
> --- a/sound/pci/atiixp.c
> +++ b/sound/pci/atiixp.c
> @@ -1585,8 +1585,7 @@ static int snd_atiixp_free(struct atiixp *chip)
>        __hw_end:
>  	if (chip->irq >= 0)
>  		free_irq(chip->irq, chip);
> -	if (chip->remap_addr)
> -		iounmap(chip->remap_addr);
> +	iounmap(chip->remap_addr);
>  	pci_release_regions(chip->pci);
>  	pci_disable_device(chip->pci);
>  	kfree(chip);
> diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c
> index b2f63e0..c321a97 100644
> --- a/sound/pci/atiixp_modem.c
> +++ b/sound/pci/atiixp_modem.c
> @@ -1211,8 +1211,7 @@ static int snd_atiixp_free(struct atiixp_modem *chip)
>        __hw_end:
>  	if (chip->irq >= 0)
>  		free_irq(chip->irq, chip);
> -	if (chip->remap_addr)
> -		iounmap(chip->remap_addr);
> +	iounmap(chip->remap_addr);
>  	pci_release_regions(chip->pci);
>  	pci_disable_device(chip->pci);
>  	kfree(chip);
> diff --git a/sound/pci/aw2/aw2-alsa.c b/sound/pci/aw2/aw2-alsa.c
> index e1cf019..8d2fee7 100644
> --- a/sound/pci/aw2/aw2-alsa.c
> +++ b/sound/pci/aw2/aw2-alsa.c
> @@ -229,9 +229,7 @@ static int snd_aw2_dev_free(struct snd_device *device)
>  	if (chip->irq >= 0)
>  		free_irq(chip->irq, (void *)chip);
>  	/* release the i/o ports & memory */
> -	if (chip->iobase_virt)
> -		iounmap(chip->iobase_virt);
> -
> +	iounmap(chip->iobase_virt);
>  	pci_release_regions(chip->pci);
>  	/* disable the PCI entry */
>  	pci_disable_device(chip->pci);
> diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
> index 058b997..e82ceac 100644
> --- a/sound/pci/bt87x.c
> +++ b/sound/pci/bt87x.c
> @@ -690,8 +690,7 @@ static int snd_bt87x_free(struct snd_bt87x *chip)
>  		snd_bt87x_stop(chip);
>  	if (chip->irq >= 0)
>  		free_irq(chip->irq, chip);
> -	if (chip->mmio)
> -		iounmap(chip->mmio);
> +	iounmap(chip->mmio);
>  	pci_release_regions(chip->pci);
>  	pci_disable_device(chip->pci);
>  	kfree(chip);
> diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
> index 05a4337..ea33911 100644
> --- a/sound/pci/cs4281.c
> +++ b/sound/pci/cs4281.c
> @@ -1316,10 +1316,8 @@ static int snd_cs4281_free(struct cs4281 *chip)
>  
>  	if (chip->irq >= 0)
>  		free_irq(chip->irq, chip);
> -	if (chip->ba0)
> -		iounmap(chip->ba0);
> -	if (chip->ba1)
> -		iounmap(chip->ba1);
> +	iounmap(chip->ba0);
> +	iounmap(chip->ba1);
>  	pci_release_regions(chip->pci);
>  	pci_disable_device(chip->pci);
>  
> diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c
> index dfec84e..128bbfe 100644
> --- a/sound/pci/cs46xx/cs46xx_lib.c
> +++ b/sound/pci/cs46xx/cs46xx_lib.c
> @@ -2949,8 +2949,8 @@ static int snd_cs46xx_free(struct snd_cs46xx *chip)
>  
>  	for (idx = 0; idx < 5; idx++) {
>  		struct snd_cs46xx_region *region = &chip->region.idx[idx];
> -		if (region->remap_addr)
> -			iounmap(region->remap_addr);
> +
> +		iounmap(region->remap_addr);
>  		release_and_free_resource(region->resource);
>  	}
>  
> diff --git a/sound/pci/ctxfi/cthw20k1.c b/sound/pci/ctxfi/cthw20k1.c
> index b425aa8..b8b0d8e 100644
> --- a/sound/pci/ctxfi/cthw20k1.c
> +++ b/sound/pci/ctxfi/cthw20k1.c
> @@ -1985,10 +1985,7 @@ static int hw_card_shutdown(struct hw *hw)
>  		free_irq(hw->irq, hw);
>  
>  	hw->irq	= -1;
> -
> -	if (hw->mem_base)
> -		iounmap(hw->mem_base);
> -
> +	iounmap(hw->mem_base);
>  	hw->mem_base = NULL;
>  
>  	if (hw->io_base)
> diff --git a/sound/pci/ctxfi/cthw20k2.c b/sound/pci/ctxfi/cthw20k2.c
> index 253899d..4e16b4d 100644
> --- a/sound/pci/ctxfi/cthw20k2.c
> +++ b/sound/pci/ctxfi/cthw20k2.c
> @@ -2110,10 +2110,7 @@ static int hw_card_shutdown(struct hw *hw)
>  		free_irq(hw->irq, hw);
>  
>  	hw->irq	= -1;
> -
> -	if (hw->mem_base)
> -		iounmap(hw->mem_base);
> -
> +	iounmap(hw->mem_base);
>  	hw->mem_base = NULL;
>  
>  	if (hw->io_base)
> diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
> index 21228ad..98d4f35 100644
> --- a/sound/pci/echoaudio/echoaudio.c
> +++ b/sound/pci/echoaudio/echoaudio.c
> @@ -1872,12 +1872,8 @@ static int snd_echo_free(struct echoaudio *chip)
>  	if (chip->comm_page)
>  		snd_dma_free_pages(&chip->commpage_dma_buf);
>  
> -	if (chip->dsp_registers)
> -		iounmap(chip->dsp_registers);
> -
> +	iounmap(chip->dsp_registers);
>  	release_and_free_resource(chip->iores);
> -
> -
>  	pci_disable_device(chip->pci);
>  
>  	/* release chip data */
> diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
> index d426a0b..a971425 100644
> --- a/sound/pci/hda/hda_intel.c
> +++ b/sound/pci/hda/hda_intel.c
> @@ -1138,8 +1138,7 @@ static int azx_free(struct azx *chip)
>  		free_irq(chip->irq, (void*)chip);
>  	if (chip->msi)
>  		pci_disable_msi(chip->pci);
> -	if (chip->remap_addr)
> -		iounmap(chip->remap_addr);
> +	iounmap(chip->remap_addr);
>  
>  	azx_free_stream_pages(chip);
>  	if (chip->region_requested)
> diff --git a/sound/pci/lola/lola.c b/sound/pci/lola/lola.c
> index 4cf4be5..9ff60008 100644
> --- a/sound/pci/lola/lola.c
> +++ b/sound/pci/lola/lola.c
> @@ -551,10 +551,8 @@ static void lola_free(struct lola *chip)
>  	lola_free_mixer(chip);
>  	if (chip->irq >= 0)
>  		free_irq(chip->irq, (void *)chip);
> -	if (chip->bar[0].remap_addr)
> -		iounmap(chip->bar[0].remap_addr);
> -	if (chip->bar[1].remap_addr)
> -		iounmap(chip->bar[1].remap_addr);
> +	iounmap(chip->bar[0].remap_addr);
> +	iounmap(chip->bar[1].remap_addr);
>  	if (chip->rb.area)
>  		snd_dma_free_pages(&chip->rb);
>  	pci_release_regions(chip->pci);
> diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c
> index 1faf47e..c3a9f39 100644
> --- a/sound/pci/mixart/mixart.c
> +++ b/sound/pci/mixart/mixart.c
> @@ -1114,10 +1114,9 @@ static int snd_mixart_free(struct mixart_mgr *mgr)
>  	}
>  
>  	/* release the i/o ports */
> -	for (i = 0; i < 2; i++) {
> -		if (mgr->mem[i].virt)
> -			iounmap(mgr->mem[i].virt);
> -	}
> +	for (i = 0; i < 2; ++i)
> +		iounmap(mgr->mem[i].virt);
> +
>  	pci_release_regions(mgr->pci);
>  
>  	/* free flowarray */
> diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c
> index 4e41a4e..3f52a44 100644
> --- a/sound/pci/nm256/nm256.c
> +++ b/sound/pci/nm256/nm256.c
> @@ -1460,10 +1460,8 @@ static int snd_nm256_free(struct nm256 *chip)
>  	if (chip->irq >= 0)
>  		free_irq(chip->irq, chip);
>  
> -	if (chip->cport)
> -		iounmap(chip->cport);
> -	if (chip->buffer)
> -		iounmap(chip->buffer);
> +	iounmap(chip->cport);
> +	iounmap(chip->buffer);
>  	release_and_free_resource(chip->res_cport);
>  	release_and_free_resource(chip->res_buffer);
>  
> diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
> index cf5a6c8..fe66bcb 100644
> --- a/sound/pci/rme9652/hdsp.c
> +++ b/sound/pci/rme9652/hdsp.c
> @@ -5309,9 +5309,7 @@ static int snd_hdsp_free(struct hdsp *hdsp)
>  
>  	release_firmware(hdsp->firmware);
>  	vfree(hdsp->fw_uploaded);
> -
> -	if (hdsp->iobase)
> -		iounmap(hdsp->iobase);
> +	iounmap(hdsp->iobase);
>  
>  	if (hdsp->port)
>  		pci_release_regions(hdsp->pci);
> diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
> index 3342705..8109b8e 100644
> --- a/sound/pci/rme9652/hdspm.c
> +++ b/sound/pci/rme9652/hdspm.c
> @@ -6965,9 +6965,7 @@ static int snd_hdspm_free(struct hdspm * hdspm)
>  		free_irq(hdspm->irq, (void *) hdspm);
>  
>  	kfree(hdspm->mixer);
> -
> -	if (hdspm->iobase)
> -		iounmap(hdspm->iobase);
> +	iounmap(hdspm->iobase);
>  
>  	if (hdspm->port)
>  		pci_release_regions(hdspm->pci);
> diff --git a/sound/pci/rme9652/rme9652.c b/sound/pci/rme9652/rme9652.c
> index 6521521..648911c 100644
> --- a/sound/pci/rme9652/rme9652.c
> +++ b/sound/pci/rme9652/rme9652.c
> @@ -1756,8 +1756,7 @@ static int snd_rme9652_free(struct snd_rme9652 *rme9652)
>  
>  	if (rme9652->irq >= 0)
>  		free_irq(rme9652->irq, (void *)rme9652);
> -	if (rme9652->iobase)
> -		iounmap(rme9652->iobase);
> +	iounmap(rme9652->iobase);
>  	if (rme9652->port)
>  		pci_release_regions(rme9652->pci);
>  
> diff --git a/sound/pci/sis7019.c b/sound/pci/sis7019.c
> index 7f6a0a0..5e9437b 100644
> --- a/sound/pci/sis7019.c
> +++ b/sound/pci/sis7019.c
> @@ -1064,12 +1064,9 @@ static int sis_chip_free(struct sis7019 *sis)
>  	if (sis->irq >= 0)
>  		free_irq(sis->irq, sis);
>  
> -	if (sis->ioaddr)
> -		iounmap(sis->ioaddr);
> -
> +	iounmap(sis->ioaddr);
>  	pci_release_regions(sis->pci);
>  	pci_disable_device(sis->pci);
> -
>  	sis_free_suspend(sis);
>  	return 0;
>  }
> diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
> index f5581a9..de7f06f 100644
> --- a/sound/pci/ymfpci/ymfpci_main.c
> +++ b/sound/pci/ymfpci/ymfpci_main.c
> @@ -2246,8 +2246,7 @@ static int snd_ymfpci_free(struct snd_ymfpci *chip)
>  	release_and_free_resource(chip->mpu_res);
>  	release_and_free_resource(chip->fm_res);
>  	snd_ymfpci_free_gameport(chip);
> -	if (chip->reg_area_virt)
> -		iounmap(chip->reg_area_virt);
> +	iounmap(chip->reg_area_virt);
>  	if (chip->work_ptr.area)
>  		snd_dma_free_pages(&chip->work_ptr);
>  	
> diff --git a/sound/ppc/pmac.c b/sound/ppc/pmac.c
> index 5a13b22..d399df4 100644
> --- a/sound/ppc/pmac.c
> +++ b/sound/ppc/pmac.c
> @@ -867,16 +867,11 @@ static int snd_pmac_free(struct snd_pmac *chip)
>  	snd_pmac_dbdma_free(chip, &chip->capture.cmd);
>  	snd_pmac_dbdma_free(chip, &chip->extra_dma);
>  	snd_pmac_dbdma_free(chip, &emergency_dbdma);
> -	if (chip->macio_base)
> -		iounmap(chip->macio_base);
> -	if (chip->latch_base)
> -		iounmap(chip->latch_base);
> -	if (chip->awacs)
> -		iounmap(chip->awacs);
> -	if (chip->playback.dma)
> -		iounmap(chip->playback.dma);
> -	if (chip->capture.dma)
> -		iounmap(chip->capture.dma);
> +	iounmap(chip->macio_base);
> +	iounmap(chip->latch_base);
> +	iounmap(chip->awacs);
> +	iounmap(chip->playback.dma);
> +	iounmap(chip->capture.dma);
>  
>  	if (chip->node) {
>  		int i;
> -- 
> 2.2.1
> 
> --
> To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html


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Subject: Re: [PATCH 11/13] ALSA: Deletion of checks before the function call
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On Wed, 2016-10-26 at 15:26 +0300, Dan Carpenter wrote:
> Someone was just mentioning in another thread that removing the check
> from iounmap() is not portable to other arches and then I remembered
> that Markus removed a bunch of these.
> 
> We should consider reverting this, perhaps?

Can't we teach all architectures? Not that reverting it would be a
problem.

johannes


From - Thu Nov 08 21:39:14 2018
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From: Dan Carpenter <dan.carpenter@oracle.com>
Newsgroups: gmane.linux.kernel,gmane.linux.alsa.devel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.kernel.janitors
Subject: Re: [PATCH 11/13] ALSA: Deletion of checks before the function call
 "iounmap"
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On Wed, Oct 26, 2016 at 02:28:59PM +0200, Johannes Berg wrote:
> On Wed, 2016-10-26 at 15:26 +0300, Dan Carpenter wrote:
> > Someone was just mentioning in another thread that removing the check
> > from iounmap() is not portable to other arches and then I remembered
> > that Markus removed a bunch of these.
> > 
> > We should consider reverting this, perhaps?
> 
> Can't we teach all architectures? Not that reverting it would be a
> problem.

We probably should.  I just didn't want to suggest it, in case it sounds
like volunteering...  I'm not going to be able to do it because I'm on
the road for a bit.

regards,
dan carpenter



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Newsgroups: gmane.linux.usb.general,gmane.linux.ports.parisc
Subject: patch "tty: vt, cleanup and document con_scroll" added to tty-testing
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This is a note to let you know that I've just added the patch titled

    tty: vt, cleanup and document con_scroll

to my tty git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
in the tty-testing branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will be merged to the tty-next branch sometime soon,
after it passes testing, and the merge window is open.

If you have any questions about this process, please let me know.


>From d705ff38189fcfbbfa6aa97363d30c23348ad166 Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby-AlSwsSmVLrQ@public.gmane.org>
Date: Mon, 3 Oct 2016 11:18:33 +0200
Subject: tty: vt, cleanup and document con_scroll

Scrolling helpers scrup and scrdown both accept 'top' and 'bottom' as
unsigned int. Number of lines 'nr' is accepted as int, but all callers
pass down unsigned too. So change the type of 'nr' to unsigned too.
Now, promote unsigned int from the helpers up to the con_scroll
hook which actually accepted all those as signed int.

Next, the 'dir' parameter can have only two values and we define
constants for that: SM_UP and SM_DOWN. Switch them to enum and do
proper type checking on 'dir' too.

Finally, document the behaviour of the hook.

Signed-off-by: Jiri Slaby <jslaby-AlSwsSmVLrQ@public.gmane.org>
Cc: Thomas Winischhofer <thomas-8tQO0IXuy4gnETEX8uN03g@public.gmane.org>
Cc: Tomi Valkeinen <tomi.valkeinen-l0cyMroinI0@public.gmane.org>
Cc: "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
Cc: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
Cc: <linux-fbdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Cc: <linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Cc: <linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Signed-off-by: Greg Kroah-Hartman <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
---
 drivers/tty/vt/vt.c                     |  6 ++++--
 drivers/usb/misc/sisusbvga/sisusb_con.c | 18 ++++++++++--------
 drivers/video/console/fbcon.c           | 18 ++++++++----------
 drivers/video/console/mdacon.c          |  7 ++++---
 drivers/video/console/newport_con.c     |  8 ++++----
 drivers/video/console/sticon.c          |  7 ++++---
 drivers/video/console/vgacon.c          | 12 +++++-------
 include/linux/console.h                 | 16 +++++++++++-----
 8 files changed, 50 insertions(+), 42 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 06fb39c1d6dd..c4bf96fee32e 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -315,7 +315,8 @@ void schedule_console_callback(void)
 	schedule_work(&console_work);
 }
 
-static void scrup(struct vc_data *vc, unsigned int t, unsigned int b, int nr)
+static void scrup(struct vc_data *vc, unsigned int t, unsigned int b,
+		unsigned int nr)
 {
 	unsigned short *d, *s;
 
@@ -332,7 +333,8 @@ static void scrup(struct vc_data *vc, unsigned int t, unsigned int b, int nr)
 		    vc->vc_size_row * nr);
 }
 
-static void scrdown(struct vc_data *vc, unsigned int t, unsigned int b, int nr)
+static void scrdown(struct vc_data *vc, unsigned int t, unsigned int b,
+		unsigned int nr)
 {
 	unsigned short *s;
 	unsigned int step;
diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c
index 460cebf322e3..6331965daa0b 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -808,9 +808,10 @@ sisusbcon_cursor(struct vc_data *c, int mode)
 	mutex_unlock(&sisusb->lock);
 }
 
-static int
+static bool
 sisusbcon_scroll_area(struct vc_data *c, struct sisusb_usb_data *sisusb,
-					int t, int b, int dir, int lines)
+		unsigned int t, unsigned int b, enum con_scroll dir,
+		unsigned int lines)
 {
 	int cols = sisusb->sisusb_num_columns;
 	int length = ((b - t) * cols) * 2;
@@ -852,8 +853,9 @@ sisusbcon_scroll_area(struct vc_data *c, struct sisusb_usb_data *sisusb,
 }
 
 /* Interface routine */
-static int
-sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
+static bool
+sisusbcon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int lines)
 {
 	struct sisusb_usb_data *sisusb;
 	u16 eattr = c->vc_video_erase_char;
@@ -870,17 +872,17 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
 	 */
 
 	if (!lines)
-		return 1;
+		return true;
 
 	sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
 	if (!sisusb)
-		return 0;
+		return false;
 
 	/* sisusb->lock is down */
 
 	if (sisusb_is_inactive(c, sisusb)) {
 		mutex_unlock(&sisusb->lock);
-		return 0;
+		return false;
 	}
 
 	/* Special case */
@@ -971,7 +973,7 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
 
 	mutex_unlock(&sisusb->lock);
 
-	return 1;
+	return true;
 }
 
 /* Interface routine */
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index b87f5cfdaea5..a44f5627b82a 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -164,8 +164,6 @@ static void fbcon_putcs(struct vc_data *vc, const unsigned short *s,
 			int count, int ypos, int xpos);
 static void fbcon_clear_margins(struct vc_data *vc, int bottom_only);
 static void fbcon_cursor(struct vc_data *vc, int mode);
-static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
-			int count);
 static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx,
 			int height, int width);
 static int fbcon_switch(struct vc_data *vc);
@@ -1795,15 +1793,15 @@ static inline void fbcon_softback_note(struct vc_data *vc, int t,
 	softback_curr = softback_in;
 }
 
-static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
-			int count)
+static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int count)
 {
 	struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
 	struct display *p = &fb_display[vc->vc_num];
 	int scroll_partial = info->flags & FBINFO_PARTIAL_PAN_OK;
 
 	if (fbcon_is_inactive(vc, info))
-		return -EINVAL;
+		return true;
 
 	fbcon_cursor(vc, CM_ERASE);
 
@@ -1831,7 +1829,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
 							(b - count)),
 				    vc->vc_video_erase_char,
 				    vc->vc_size_row * count);
-			return 1;
+			return true;
 			break;
 
 		case SCROLL_WRAP_MOVE:
@@ -1903,7 +1901,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
 							(b - count)),
 				    vc->vc_video_erase_char,
 				    vc->vc_size_row * count);
-			return 1;
+			return true;
 		}
 		break;
 
@@ -1922,7 +1920,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
 							t),
 				    vc->vc_video_erase_char,
 				    vc->vc_size_row * count);
-			return 1;
+			return true;
 			break;
 
 		case SCROLL_WRAP_MOVE:
@@ -1992,10 +1990,10 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
 							t),
 				    vc->vc_video_erase_char,
 				    vc->vc_size_row * count);
-			return 1;
+			return true;
 		}
 	}
-	return 0;
+	return false;
 }
 
 
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index bacbb044d77c..ec192a1bf297 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -488,12 +488,13 @@ static void mdacon_cursor(struct vc_data *c, int mode)
 	}
 }
 
-static int mdacon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
+static bool mdacon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int lines)
 {
 	u16 eattr = mda_convert_attr(c->vc_video_erase_char);
 
 	if (!lines)
-		return 0;
+		return false;
 
 	if (lines > c->vc_rows)   /* maximum realistic size */
 		lines = c->vc_rows;
@@ -514,7 +515,7 @@ static int mdacon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
 		break;
 	}
 
-	return 0;
+	return false;
 }
 
 
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index e3b9521e4ec3..1e11614322fe 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -574,8 +574,8 @@ static int newport_font_set(struct vc_data *vc, struct console_font *font, unsig
 	return newport_set_font(vc->vc_num, font);
 }
 
-static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
-			  int lines)
+static bool newport_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int lines)
 {
 	int count, x, y;
 	unsigned short *s, *d;
@@ -595,7 +595,7 @@ static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
 					    (vc->vc_color & 0xf0) >> 4);
 		}
 		npregs->cset.topscan = (topscan - 1) & 0x3ff;
-		return 0;
+		return false;
 	}
 
 	count = (b - t - lines) * vc->vc_cols;
@@ -670,7 +670,7 @@ static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
 			}
 		}
 	}
-	return 1;
+	return true;
 }
 
 static int newport_dummy(struct vc_data *c)
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 3a10ac19598f..79c9bd8d3025 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -153,12 +153,13 @@ static void sticon_cursor(struct vc_data *conp, int mode)
     }
 }
 
-static int sticon_scroll(struct vc_data *conp, int t, int b, int dir, int count)
+static bool sticon_scroll(struct vc_data *conp, unsigned int t,
+		unsigned int b, enum con_scroll dir, unsigned int count)
 {
     struct sti_struct *sti = sticon_sti;
 
     if (vga_is_gfx)
-        return 0;
+        return false;
 
     sticon_cursor(conp, CM_ERASE);
 
@@ -174,7 +175,7 @@ static int sticon_scroll(struct vc_data *conp, int t, int b, int dir, int count)
 	break;
     }
 
-    return 0;
+    return false;
 }
 
 static void sticon_init(struct vc_data *c, int init)
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 11576611a974..4c54a873452e 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -83,8 +83,6 @@ static int vgacon_blank(struct vc_data *c, int blank, int mode_switch);
 static void vgacon_scrolldelta(struct vc_data *c, int lines);
 static int vgacon_set_origin(struct vc_data *c);
 static void vgacon_save_screen(struct vc_data *c);
-static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
-			 int lines);
 static void vgacon_invert_region(struct vc_data *c, u16 * p, int count);
 static struct uni_pagedir *vgacon_uni_pagedir;
 static int vgacon_refcount;
@@ -1350,17 +1348,17 @@ static void vgacon_save_screen(struct vc_data *c)
 			    c->vc_screenbuf_size > vga_vram_size ? vga_vram_size : c->vc_screenbuf_size);
 }
 
-static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
-			 int lines)
+static bool vgacon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int lines)
 {
 	unsigned long oldo;
 	unsigned int delta;
 
 	if (t || b != c->vc_rows || vga_is_gfx || c->vc_mode != KD_TEXT)
-		return 0;
+		return false;
 
 	if (!vga_hardscroll_enabled || lines >= c->vc_rows / 2)
-		return 0;
+		return false;
 
 	vgacon_restore_screen(c);
 	oldo = c->vc_origin;
@@ -1396,7 +1394,7 @@ static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
 	c->vc_visible_origin = c->vc_origin;
 	vga_set_mem_top(c);
 	c->vc_pos = (c->vc_pos - oldo) + c->vc_origin;
-	return 1;
+	return true;
 }
 
 
diff --git a/include/linux/console.h b/include/linux/console.h
index 3672809234a7..508b012bd5bd 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -28,9 +28,17 @@ struct tty_struct;
 #define VT100ID "\033[?1;2c"
 #define VT102ID "\033[?6c"
 
+enum con_scroll {
+	SM_UP,
+	SM_DOWN,
+};
+
 /**
  * struct consw - callbacks for consoles
  *
+ * @con_scroll: move lines from @top to @bottom in direction @dir by @lines.
+ *		Return true if no generic handling should be done.
+ *		Invoked by csi_M and printing to the console.
  * @con_set_palette: sets the palette of the console to @table (optional)
  * @con_scrolldelta: the contents of the console should be scrolled by @lines.
  *		     Invoked by user. (optional)
@@ -44,7 +52,9 @@ struct consw {
 	void	(*con_putc)(struct vc_data *, int, int, int);
 	void	(*con_putcs)(struct vc_data *, const unsigned short *, int, int, int);
 	void	(*con_cursor)(struct vc_data *, int);
-	int	(*con_scroll)(struct vc_data *, int, int, int, int);
+	bool	(*con_scroll)(struct vc_data *, unsigned int top,
+			unsigned int bottom, enum con_scroll dir,
+			unsigned int lines);
 	int	(*con_switch)(struct vc_data *);
 	int	(*con_blank)(struct vc_data *, int, int);
 	int	(*con_font_set)(struct vc_data *, struct console_font *, unsigned);
@@ -99,10 +109,6 @@ static inline int con_debug_leave(void)
 }
 #endif
 
-/* scroll */
-#define SM_UP       (1)
-#define SM_DOWN     (2)

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Subject: Re: [PATCH] parisc: keep track of last shared mmap'ed address
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shared mappings (v2)
Reply-To: 
In-Reply-To: <20140417204545.GA4567@ls3530.fritz.box>

* Helge Deller <deller@gmx.de>:
> [RFC,PATCH] mm,parisc: keep track of last mmap'ed address
> 
> Because of parisc's cache aliasing constraints we need to map shared pages at a
> multiple of 4MB while most other architectures can map files at any multiple of
> PAGE_SIZE. In the past this constraint was ensured by calculating a virtual
> offset into this 4MB region which is based on the physical address of the
> kernel mapping variable (right-shift value of filp->f_mapping by 8 bits).
> Since we only have a 32bit userspace (even when running on a 64bit kernel) this
> often leads to large gaps in the maps of the userspace processes and to out of
> memory situations even if physical memory was still free.  Of course I did
> played with other variants of shifting the f_mapping value to find better
> offsets but this didn't helped either.
> 
> This patch chooses a different approach.
> It adds the additional field i_mmap_lastmmap to the address_space struct to
> keep track of the last mapping of a shared file. With this bookkeeping it's
> possible for the parisc memory allocator to 
> a) choose a new mapping offset if the file hasn't been mapped yet, and
> b) take the last-used mapping if it was already mapped by another process.
> 
> Overall this approach leads to a more condensed memory usage on parisc because
> the shared files will now be mapped much closer to each other. This is e.g.
> visible with shared libraries which are now not any longer cluttered around
> in the userspace process but close to each other at the top of the userspace
> memory.

This is version 2 of this patch.

Instead of adding one additional field to the address space struct, it
now uses the private_data field of the file struct to store the last
used mmap address.

Additionally I tweaked the flush_dcache_page() function to warn for
INEQUIVALENT ALIASES only for shared mappings and ignore private
mappings. Without this change, stracing applications sometimes showed
those warnings. Not sure if this is the right thing to do.

My testing didn't showed any negative effects yet, although I'm not sure
if the usage of the private_data field may conflict with other use
cases, e.g. compressed file systems or such.

To benefit from the more effective/condensed memory usage one additional
patch is needed.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 629eb46..f72789b 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -321,10 +321,10 @@ void flush_dcache_page(struct page *page)
 
 	pgoff = page->index;
 
-	/* We have carefully arranged in arch_get_unmapped_area() that
-	 * *any* mappings of a file are always congruently mapped (whether
-	 * declared as MAP_PRIVATE or MAP_SHARED), so we only need
-	 * to flush one address here for them all to become coherent */
+	/* We have carefully arranged in arch_get_unmapped_area() that mappings
+	 * of a file are always congruently mapped (if declared as MAP_SHARED, not
+	 * MAP_PRIVATE), so we only need to flush one address here for them all to
+	 * become coherent */
 
 	flush_dcache_mmap_lock(mapping);
 	vma_interval_tree_foreach(mpnt, &mapping->i_mmap, pgoff, pgoff) {
@@ -344,7 +344,7 @@ void flush_dcache_page(struct page *page)
 		if (old_addr == 0 || (old_addr & (SHM_COLOUR - 1))
 				      != (addr & (SHM_COLOUR - 1))) {
 			__flush_cache_page(mpnt, addr, page_to_phys(page));
-			if (old_addr)
+			if (old_addr && (mpnt->vm_flags & VM_SHARED))
 				printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %pD\n", old_addr, addr, mpnt->vm_file);
 			old_addr = addr;
 		}
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 0a393a0..c04d946 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -36,12 +36,11 @@
 #include <linux/personality.h>
 #include <linux/random.h>
 
-/* we construct an artificial offset for the mapping based on the physical
- * address of the kernel mapping variable */
+/* keep track of the last mapping address offset in the private_data field */
 #define GET_LAST_MMAP(filp)		\
-	(filp ? ((unsigned long) filp->f_mapping) >> 8 : 0UL)
+	(filp && (file_count(filp) > 0) ? (unsigned long) filp->private_data : 0UL)
 #define SET_LAST_MMAP(filp, val)	\
-	 { /* nothing */ }
+	{ if (filp) filp->private_data = (void *) (val); }
 
 static int get_offset(unsigned int last_mmap)
 {
--
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(resending this patch from April 2014 to get it into patchwork)

The current implementation of unmapped_area_topdown() is very inefficient for
architectures which require an alignment bigger than PAGE_SIZE for shared
mappings. This basically affects architectures like parisc, ia64, sparc and
probably others.

When unmapped_area_topdown() is called to find a free area, the current
implementation looks for an area of size (length + align_mask). For many
architectures align_mask is 4k (=PAGE_SIZE), while others due to cache
colouring require bigger alignment masks of up to 4 MB (e.g. on parisc). In
fragmented memory situations this may lead to unmapped_area_topdown() being
unable to find even for a few bytes requested a suitable area and as such may
return out of memory.

This patch modifies the search algorithm to look for an area of the requested
size while taking the required alignment and alignment offset into account.

Tested on 32- and 64-bit parisc kernels.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/mm/mmap.c b/mm/mmap.c
index 1af87c1..f675e07 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1848,16 +1848,26 @@ unsigned long unmapped_area(struct vm_unmapped_area_info *info)
 	return gap_start;
 }
 
+/* adjust gap start address upwards to desired alignment */
+static unsigned long gap_start_round_up(unsigned long start,
+				struct vm_unmapped_area_info *info)
+{
+	if (!info->align_mask)
+		return start;
+	if ((start & info->align_mask) > info->align_offset)
+		start = ALIGN(start, info->align_mask+1) + info->align_offset;
+	else
+		start = (start & ~info->align_mask) + info->align_offset;
+	return start;
+}
+
 unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
 {
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	unsigned long length, low_limit, high_limit, gap_start, gap_end;
 
-	/* Adjust search length to account for worst case alignment overhead */
-	length = info->length + info->align_mask;
-	if (length < info->length)
-		return -ENOMEM;
+	length = info->length;
 
 	/*
 	 * Adjust search limits by the desired length.
@@ -1874,8 +1884,10 @@ unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
 
 	/* Check highest gap, which does not precede any rbtree node */
 	gap_start = mm->highest_vm_end;
-	if (gap_start <= high_limit)
-		goto found_highest;
+	gap_start = gap_start_round_up(gap_start, info);
+	if (gap_start <= high_limit && gap_end - gap_start >= length &&
+			gap_start < gap_end)
+		goto found;
 
 	/* Check if rbtree root looks promising */
 	if (RB_EMPTY_ROOT(&mm->mm_rb))
@@ -1887,6 +1899,7 @@ unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
 	while (true) {
 		/* Visit right subtree if it looks promising */
 		gap_start = vma->vm_prev ? vma->vm_prev->vm_end : 0;
+		gap_start = gap_start_round_up(gap_start, info);
 		if (gap_start <= high_limit && vma->vm_rb.rb_right) {
 			struct vm_area_struct *right =
 				rb_entry(vma->vm_rb.rb_right,
@@ -1902,7 +1915,8 @@ unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
 		gap_end = vma->vm_start;
 		if (gap_end < low_limit)
 			return -ENOMEM;
-		if (gap_start <= high_limit && gap_end - gap_start >= length)
+		if (gap_start <= high_limit && gap_end - gap_start >= length &&
+				gap_start < gap_end)
 			goto found;
 
 		/* Visit left subtree if it looks promising */
@@ -1926,6 +1940,7 @@ unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
 			if (prev == vma->vm_rb.rb_right) {
 				gap_start = vma->vm_prev ?
 					vma->vm_prev->vm_end : 0;
+				gap_start = gap_start_round_up(gap_start, info);
 				goto check_current;
 			}
 		}
@@ -1936,7 +1951,6 @@ unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
 	if (gap_end > info->high_limit)
 		gap_end = info->high_limit;
 
-found_highest:
 	/* Compute highest gap address at the desired alignment */
 	gap_end -= info->length;
 	gap_end -= (gap_end - info->align_offset) & info->align_mask;
--
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From: <gregkh@linuxfoundation.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.usb.general
Subject: patch "tty: vt, cleanup and document con_scroll" added to tty-next
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This is a note to let you know that I've just added the patch titled

    tty: vt, cleanup and document con_scroll

to my tty git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
in the tty-next branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will also be merged in the next major kernel release
during the merge window.

If you have any questions about this process, please let me know.


>From d705ff38189fcfbbfa6aa97363d30c23348ad166 Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: Mon, 3 Oct 2016 11:18:33 +0200
Subject: tty: vt, cleanup and document con_scroll

Scrolling helpers scrup and scrdown both accept 'top' and 'bottom' as
unsigned int. Number of lines 'nr' is accepted as int, but all callers
pass down unsigned too. So change the type of 'nr' to unsigned too.
Now, promote unsigned int from the helpers up to the con_scroll
hook which actually accepted all those as signed int.

Next, the 'dir' parameter can have only two values and we define
constants for that: SM_UP and SM_DOWN. Switch them to enum and do
proper type checking on 'dir' too.

Finally, document the behaviour of the hook.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: <linux-fbdev@vger.kernel.org>
Cc: <linux-usb@vger.kernel.org>
Cc: <linux-parisc@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/vt/vt.c                     |  6 ++++--
 drivers/usb/misc/sisusbvga/sisusb_con.c | 18 ++++++++++--------
 drivers/video/console/fbcon.c           | 18 ++++++++----------
 drivers/video/console/mdacon.c          |  7 ++++---
 drivers/video/console/newport_con.c     |  8 ++++----
 drivers/video/console/sticon.c          |  7 ++++---
 drivers/video/console/vgacon.c          | 12 +++++-------
 include/linux/console.h                 | 16 +++++++++++-----
 8 files changed, 50 insertions(+), 42 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 06fb39c1d6dd..c4bf96fee32e 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -315,7 +315,8 @@ void schedule_console_callback(void)
 	schedule_work(&console_work);
 }
 
-static void scrup(struct vc_data *vc, unsigned int t, unsigned int b, int nr)
+static void scrup(struct vc_data *vc, unsigned int t, unsigned int b,
+		unsigned int nr)
 {
 	unsigned short *d, *s;
 
@@ -332,7 +333,8 @@ static void scrup(struct vc_data *vc, unsigned int t, unsigned int b, int nr)
 		    vc->vc_size_row * nr);
 }
 
-static void scrdown(struct vc_data *vc, unsigned int t, unsigned int b, int nr)
+static void scrdown(struct vc_data *vc, unsigned int t, unsigned int b,
+		unsigned int nr)
 {
 	unsigned short *s;
 	unsigned int step;
diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c
index 460cebf322e3..6331965daa0b 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -808,9 +808,10 @@ sisusbcon_cursor(struct vc_data *c, int mode)
 	mutex_unlock(&sisusb->lock);
 }
 
-static int
+static bool
 sisusbcon_scroll_area(struct vc_data *c, struct sisusb_usb_data *sisusb,
-					int t, int b, int dir, int lines)
+		unsigned int t, unsigned int b, enum con_scroll dir,
+		unsigned int lines)
 {
 	int cols = sisusb->sisusb_num_columns;
 	int length = ((b - t) * cols) * 2;
@@ -852,8 +853,9 @@ sisusbcon_scroll_area(struct vc_data *c, struct sisusb_usb_data *sisusb,
 }
 
 /* Interface routine */
-static int
-sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
+static bool
+sisusbcon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int lines)
 {
 	struct sisusb_usb_data *sisusb;
 	u16 eattr = c->vc_video_erase_char;
@@ -870,17 +872,17 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
 	 */
 
 	if (!lines)
-		return 1;
+		return true;
 
 	sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
 	if (!sisusb)
-		return 0;
+		return false;
 
 	/* sisusb->lock is down */
 
 	if (sisusb_is_inactive(c, sisusb)) {
 		mutex_unlock(&sisusb->lock);
-		return 0;
+		return false;
 	}
 
 	/* Special case */
@@ -971,7 +973,7 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
 
 	mutex_unlock(&sisusb->lock);
 
-	return 1;
+	return true;
 }
 
 /* Interface routine */
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index b87f5cfdaea5..a44f5627b82a 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -164,8 +164,6 @@ static void fbcon_putcs(struct vc_data *vc, const unsigned short *s,
 			int count, int ypos, int xpos);
 static void fbcon_clear_margins(struct vc_data *vc, int bottom_only);
 static void fbcon_cursor(struct vc_data *vc, int mode);
-static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
-			int count);
 static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx,
 			int height, int width);
 static int fbcon_switch(struct vc_data *vc);
@@ -1795,15 +1793,15 @@ static inline void fbcon_softback_note(struct vc_data *vc, int t,
 	softback_curr = softback_in;
 }
 
-static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
-			int count)
+static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int count)
 {
 	struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
 	struct display *p = &fb_display[vc->vc_num];
 	int scroll_partial = info->flags & FBINFO_PARTIAL_PAN_OK;
 
 	if (fbcon_is_inactive(vc, info))
-		return -EINVAL;
+		return true;
 
 	fbcon_cursor(vc, CM_ERASE);
 
@@ -1831,7 +1829,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
 							(b - count)),
 				    vc->vc_video_erase_char,
 				    vc->vc_size_row * count);
-			return 1;
+			return true;
 			break;
 
 		case SCROLL_WRAP_MOVE:
@@ -1903,7 +1901,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
 							(b - count)),
 				    vc->vc_video_erase_char,
 				    vc->vc_size_row * count);
-			return 1;
+			return true;
 		}
 		break;
 
@@ -1922,7 +1920,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
 							t),
 				    vc->vc_video_erase_char,
 				    vc->vc_size_row * count);
-			return 1;
+			return true;
 			break;
 
 		case SCROLL_WRAP_MOVE:
@@ -1992,10 +1990,10 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
 							t),
 				    vc->vc_video_erase_char,
 				    vc->vc_size_row * count);
-			return 1;
+			return true;
 		}
 	}
-	return 0;
+	return false;
 }
 
 
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index bacbb044d77c..ec192a1bf297 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -488,12 +488,13 @@ static void mdacon_cursor(struct vc_data *c, int mode)
 	}
 }
 
-static int mdacon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
+static bool mdacon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int lines)
 {
 	u16 eattr = mda_convert_attr(c->vc_video_erase_char);
 
 	if (!lines)
-		return 0;
+		return false;
 
 	if (lines > c->vc_rows)   /* maximum realistic size */
 		lines = c->vc_rows;
@@ -514,7 +515,7 @@ static int mdacon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
 		break;
 	}
 
-	return 0;
+	return false;
 }
 
 
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index e3b9521e4ec3..1e11614322fe 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -574,8 +574,8 @@ static int newport_font_set(struct vc_data *vc, struct console_font *font, unsig
 	return newport_set_font(vc->vc_num, font);
 }
 
-static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
-			  int lines)
+static bool newport_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int lines)
 {
 	int count, x, y;
 	unsigned short *s, *d;
@@ -595,7 +595,7 @@ static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
 					    (vc->vc_color & 0xf0) >> 4);
 		}
 		npregs->cset.topscan = (topscan - 1) & 0x3ff;
-		return 0;
+		return false;
 	}
 
 	count = (b - t - lines) * vc->vc_cols;
@@ -670,7 +670,7 @@ static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
 			}
 		}
 	}
-	return 1;
+	return true;
 }
 
 static int newport_dummy(struct vc_data *c)
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 3a10ac19598f..79c9bd8d3025 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -153,12 +153,13 @@ static void sticon_cursor(struct vc_data *conp, int mode)
     }
 }
 
-static int sticon_scroll(struct vc_data *conp, int t, int b, int dir, int count)
+static bool sticon_scroll(struct vc_data *conp, unsigned int t,
+		unsigned int b, enum con_scroll dir, unsigned int count)
 {
     struct sti_struct *sti = sticon_sti;
 
     if (vga_is_gfx)
-        return 0;
+        return false;
 
     sticon_cursor(conp, CM_ERASE);
 
@@ -174,7 +175,7 @@ static int sticon_scroll(struct vc_data *conp, int t, int b, int dir, int count)
 	break;
     }
 
-    return 0;
+    return false;
 }
 
 static void sticon_init(struct vc_data *c, int init)
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 11576611a974..4c54a873452e 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -83,8 +83,6 @@ static int vgacon_blank(struct vc_data *c, int blank, int mode_switch);
 static void vgacon_scrolldelta(struct vc_data *c, int lines);
 static int vgacon_set_origin(struct vc_data *c);
 static void vgacon_save_screen(struct vc_data *c);
-static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
-			 int lines);
 static void vgacon_invert_region(struct vc_data *c, u16 * p, int count);
 static struct uni_pagedir *vgacon_uni_pagedir;
 static int vgacon_refcount;
@@ -1350,17 +1348,17 @@ static void vgacon_save_screen(struct vc_data *c)
 			    c->vc_screenbuf_size > vga_vram_size ? vga_vram_size : c->vc_screenbuf_size);
 }
 
-static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
-			 int lines)
+static bool vgacon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
+		enum con_scroll dir, unsigned int lines)
 {
 	unsigned long oldo;
 	unsigned int delta;
 
 	if (t || b != c->vc_rows || vga_is_gfx || c->vc_mode != KD_TEXT)
-		return 0;
+		return false;
 
 	if (!vga_hardscroll_enabled || lines >= c->vc_rows / 2)
-		return 0;
+		return false;
 
 	vgacon_restore_screen(c);
 	oldo = c->vc_origin;
@@ -1396,7 +1394,7 @@ static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
 	c->vc_visible_origin = c->vc_origin;
 	vga_set_mem_top(c);
 	c->vc_pos = (c->vc_pos - oldo) + c->vc_origin;
-	return 1;
+	return true;
 }
 
 
diff --git a/include/linux/console.h b/include/linux/console.h
index 3672809234a7..508b012bd5bd 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -28,9 +28,17 @@ struct tty_struct;
 #define VT100ID "\033[?1;2c"
 #define VT102ID "\033[?6c"
 
+enum con_scroll {
+	SM_UP,
+	SM_DOWN,
+};
+
 /**
  * struct consw - callbacks for consoles
  *
+ * @con_scroll: move lines from @top to @bottom in direction @dir by @lines.
+ *		Return true if no generic handling should be done.
+ *		Invoked by csi_M and printing to the console.
  * @con_set_palette: sets the palette of the console to @table (optional)
  * @con_scrolldelta: the contents of the console should be scrolled by @lines.
  *		     Invoked by user. (optional)
@@ -44,7 +52,9 @@ struct consw {
 	void	(*con_putc)(struct vc_data *, int, int, int);
 	void	(*con_putcs)(struct vc_data *, const unsigned short *, int, int, int);
 	void	(*con_cursor)(struct vc_data *, int);
-	int	(*con_scroll)(struct vc_data *, int, int, int, int);
+	bool	(*con_scroll)(struct vc_data *, unsigned int top,
+			unsigned int bottom, enum con_scroll dir,
+			unsigned int lines);
 	int	(*con_switch)(struct vc_data *);
 	int	(*con_blank)(struct vc_data *, int, int);
 	int	(*con_font_set)(struct vc_data *, struct console_font *, unsigned);
@@ -99,10 +109,6 @@ static inline int con_debug_leave(void)
 }
 #endif
 
-/* scroll */
-#define SM_UP       (1)
-#define SM_DOWN     (2)

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Subject: [PATCH] parisc: use KERN_CONT for printing device inventory
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Recent changes to printk require KERN_CONT uses to continue logging messages.
So add KERN_CONT to output of device inventory.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index f815066..700e2d2 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -873,11 +873,11 @@ static void print_parisc_device(struct parisc_device *dev)
 
 	if (dev->num_addrs) {
 		int k;
-		printk(", additional addresses: ");
+		pr_cont(", additional addresses: ");
 		for (k = 0; k < dev->num_addrs; k++)
-			printk("0x%lx ", dev->addr[k]);
+			pr_cont("0x%lx ", dev->addr[k]);
 	}
-	printk("\n");
+	pr_cont("\n");
 }
 
 /**
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Subject: [PATCH] parisc: Ensure consistent state when switching to kernel
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We have one critical section in the syscall entry path in which we switch from
the userspace stack to kernel stack. In the event of an external interrupt, the
interrupt code distinguishes between those two states by analyzing the value of
sr7. If sr7 is zero, it uses the kernel stack. Therefore it's important, that
the value of sr7 is in sync with the currently enabled stack.

This patch now disables interrupts while executing the critical section.  This
prevents the interrupt handler to possibly see an inconsitent state which in
the worst case can lead to crashes.

Interestingly, in the syscall exit path interrupts were already disabled in the
critical section which switches back to the userspace stack.

Cc: <stable@vger.kernel.org>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index d03422e..f13836b 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -106,8 +106,6 @@ linux_gateway_entry:
 	mtsp	%r0,%sr4			/* get kernel space into sr4 */
 	mtsp	%r0,%sr5			/* get kernel space into sr5 */
 	mtsp	%r0,%sr6			/* get kernel space into sr6 */
-	mfsp    %sr7,%r1                        /* save user sr7 */
-	mtsp    %r1,%sr3                        /* and store it in sr3 */
 
 #ifdef CONFIG_64BIT
 	/* for now we can *always* set the W bit on entry to the syscall
@@ -134,20 +132,26 @@ linux_gateway_entry:
 1:	
 #endif
 	mfctl   %cr30,%r1
-	xor     %r1,%r30,%r30                   /* ye olde xor trick */
-	xor     %r1,%r30,%r1
-	xor     %r1,%r30,%r30
-	
-	ldo     THREAD_SZ_ALGN+FRAME_SIZE(%r30),%r30  /* set up kernel stack */
+	ldo     THREAD_SZ_ALGN+FRAME_SIZE(%r1),%r1  /* set up kernel stack */
 
 	/* N.B.: It is critical that we don't set sr7 to 0 until r30
 	 *       contains a valid kernel stack pointer. It is also
 	 *       critical that we don't start using the kernel stack
-	 *       until after sr7 has been set to 0.
+	 *       until after sr7 has been set to 0. To ensure this we
+	 *       use a rsm/ssm pair to make this operation atomic.
+	 *       At syscall entry %sr2 points to kernel space, otherwise
+	 *       syscalls wouldn't work.
 	 */
+	rsm     PSW_SM_I, %r0			/* turn interrupts off */
+	STREGM	%r30,FRAME_SIZE(%sr2, %r1)	/* save usp on kernel stack */
+	copy    %r1, %r30			/* switch to kernel stack */
+
+	mfsp    %sr7,%r1                        /* get user sr7 */
+	mtsp    %r1,%sr3                        /* store user sr7 in sr3 */
 
 	mtsp	%r0,%sr7			/* get kernel space into sr7 */
-	STREGM	%r1,FRAME_SIZE(%r30)		/* save r1 (usp) here for now */
+	ssm     PSW_SM_I, %r0			/* turn interrupts on */
+
 	mfctl	%cr30,%r1			/* get task ptr in %r1 */
 	LDREG	TI_TASK(%r1),%r1
 
--
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Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Avoid trashing sr2 and sr3 in LWS code
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parisc: Avoid trashing sr2 and sr3 in LWS code
From: John David Anglin <dave.anglin@bell.net>

There is no need to trash sr2 and sr3 in the Leight-weight syscall (LWS).  sr2
already points to kernel space (it's zero in userspace, otherwise syscalls
wouldn't work), and since the LWS code is executed in userspace, we can simply
ignore to preload sr3.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index d03422e..f13836b 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -474,10 +478,8 @@ lws_start:
 	comiclr,>>	__NR_lws_entries, %r20, %r0
 	b,n	lws_exit_nosys
 
-	/* WARNING: Trashing sr2 and sr3 */
-	mfsp	%sr7,%r1			/* get userspace into sr3 */
-	mtsp	%r1,%sr3
-	mtsp	%r0,%sr2			/* get kernel space into sr2 */
+	/* Note: %sr2 is zero when called from userspace,
+	   else syscalls wouldn't work. */
 
 	/* Load table start */
 	ldil	L%lws_table, %r1
@@ -627,9 +629,9 @@ cas_action:
 	stw	%r1, 4(%sr2,%r20)
 #endif
 	/* The load and store could fail */
-1:	ldw,ma	0(%sr3,%r26), %r28
+1:	ldw,ma	0(%r26), %r28
 	sub,<>	%r28, %r25, %r0
-2:	stw,ma	%r24, 0(%sr3,%r26)
+2:	stw,ma	%r24, 0(%r26)
 	/* Free lock */
 	stw,ma	%r20, 0(%sr2,%r20)
 #if ENABLE_LWS_DEBUG
@@ -706,9 +708,9 @@ lws_compare_and_swap_2:
 	nop
 
 	/* 8bit load */
-4:	ldb	0(%sr3,%r25), %r25
+4:	ldb	0(%r25), %r25
 	b	cas2_lock_start
-5:	ldb	0(%sr3,%r24), %r24
+5:	ldb	0(%r24), %r24
 	nop
 	nop
 	nop
@@ -716,9 +718,9 @@ lws_compare_and_swap_2:
 	nop
 
 	/* 16bit load */
-6:	ldh	0(%sr3,%r25), %r25
+6:	ldh	0(%r25), %r25
 	b	cas2_lock_start
-7:	ldh	0(%sr3,%r24), %r24
+7:	ldh	0(%r24), %r24
 	nop
 	nop
 	nop
@@ -726,9 +728,9 @@ lws_compare_and_swap_2:
 	nop
 
 	/* 32bit load */
-8:	ldw	0(%sr3,%r25), %r25
+8:	ldw	0(%r25), %r25
 	b	cas2_lock_start
-9:	ldw	0(%sr3,%r24), %r24
+9:	ldw	0(%r24), %r24
 	nop
 	nop
 	nop
@@ -737,14 +739,14 @@ lws_compare_and_swap_2:
 
 	/* 64bit load */
 #ifdef CONFIG_64BIT
-10:	ldd	0(%sr3,%r25), %r25
-11:	ldd	0(%sr3,%r24), %r24
+10:	ldd	0(%r25), %r25
+11:	ldd	0(%r24), %r24
 #else
 	/* Load new value into r22/r23 - high/low */
-10:	ldw	0(%sr3,%r25), %r22
-11:	ldw	4(%sr3,%r25), %r23
+10:	ldw	0(%r25), %r22
+11:	ldw	4(%r25), %r23
 	/* Load new value into fr4 for atomic store later */
-12:	flddx	0(%sr3,%r24), %fr4
+12:	flddx	0(%r24), %fr4
 #endif
 
 cas2_lock_start:
@@ -794,30 +796,30 @@ cas2_action:
 	ldo	1(%r0),%r28
 
 	/* 8bit CAS */
-13:	ldb,ma	0(%sr3,%r26), %r29
+13:	ldb,ma	0(%r26), %r29
 	sub,=	%r29, %r25, %r0
 	b,n	cas2_end
-14:	stb,ma	%r24, 0(%sr3,%r26)
+14:	stb,ma	%r24, 0(%r26)
 	b	cas2_end
 	copy	%r0, %r28
 	nop
 	nop
 
 	/* 16bit CAS */
-15:	ldh,ma	0(%sr3,%r26), %r29
+15:	ldh,ma	0(%r26), %r29
 	sub,=	%r29, %r25, %r0
 	b,n	cas2_end
-16:	sth,ma	%r24, 0(%sr3,%r26)
+16:	sth,ma	%r24, 0(%r26)
 	b	cas2_end
 	copy	%r0, %r28
 	nop
 	nop
 
 	/* 32bit CAS */
-17:	ldw,ma	0(%sr3,%r26), %r29
+17:	ldw,ma	0(%r26), %r29
 	sub,=	%r29, %r25, %r0
 	b,n	cas2_end
-18:	stw,ma	%r24, 0(%sr3,%r26)
+18:	stw,ma	%r24, 0(%r26)
 	b	cas2_end
 	copy	%r0, %r28
 	nop
@@ -825,22 +827,22 @@ cas2_action:
 
 	/* 64bit CAS */
 #ifdef CONFIG_64BIT
-19:	ldd,ma	0(%sr3,%r26), %r29
+19:	ldd,ma	0(%r26), %r29
 	sub,*=	%r29, %r25, %r0
 	b,n	cas2_end
-20:	std,ma	%r24, 0(%sr3,%r26)
+20:	std,ma	%r24, 0(%r26)
 	copy	%r0, %r28
 #else
 	/* Compare first word */
-19:	ldw,ma	0(%sr3,%r26), %r29
+19:	ldw,ma	0(%r26), %r29
 	sub,=	%r29, %r22, %r0
 	b,n	cas2_end
 	/* Compare second word */
-20:	ldw,ma	4(%sr3,%r26), %r29
+20:	ldw,ma	4(%r26), %r29
 	sub,=	%r29, %r23, %r0
 	b,n	cas2_end
 	/* Perform the store */
-21:	fstdx	%fr4, 0(%sr3,%r26)
+21:	fstdx	%fr4, 0(%r26)
 	copy	%r0, %r28
 #endif
 
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Ensure consistent state when switching to kernel stack at syscall entry
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On 2016-10-28, at 4:04 PM, Helge Deller wrote:

> We have one critical section in the syscall entry path in which we =
switch from
> the userspace stack to kernel stack. In the event of an external =
interrupt, the
> interrupt code distinguishes between those two states by analyzing the =
value of
> sr7. If sr7 is zero, it uses the kernel stack. Therefore it's =
important, that
> the value of sr7 is in sync with the currently enabled stack.
>=20
> This patch now disables interrupts while executing the critical =
section.  This
> prevents the interrupt handler to possibly see an inconsitent state =
which in
> the worst case can lead to crashes.
>=20
> Interestingly, in the syscall exit path interrupts were already =
disabled in the
> critical section which switches back to the userspace stack.
>=20
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Helge Deller <deller@gmx.de>
>=20
> diff --git a/arch/parisc/kernel/syscall.S =
b/arch/parisc/kernel/syscall.S
> index d03422e..f13836b 100644
> --- a/arch/parisc/kernel/syscall.S
> +++ b/arch/parisc/kernel/syscall.S
> @@ -106,8 +106,6 @@ linux_gateway_entry:
> 	mtsp	%r0,%sr4			/* get kernel space into =
sr4 */
> 	mtsp	%r0,%sr5			/* get kernel space into =
sr5 */
> 	mtsp	%r0,%sr6			/* get kernel space into =
sr6 */
> -	mfsp    %sr7,%r1                        /* save user sr7 */
> -	mtsp    %r1,%sr3                        /* and store it in sr3 =
*/
>=20
> #ifdef CONFIG_64BIT
> 	/* for now we can *always* set the W bit on entry to the syscall
> @@ -134,20 +132,26 @@ linux_gateway_entry:
> 1:=09
> #endif
> 	mfctl   %cr30,%r1
> -	xor     %r1,%r30,%r30                   /* ye olde xor trick */
> -	xor     %r1,%r30,%r1
> -	xor     %r1,%r30,%r30
> -=09
> -	ldo     THREAD_SZ_ALGN+FRAME_SIZE(%r30),%r30  /* set up kernel =
stack */
> +	ldo     THREAD_SZ_ALGN+FRAME_SIZE(%r1),%r1  /* set up kernel =
stack */
>=20
> 	/* N.B.: It is critical that we don't set sr7 to 0 until r30
> 	 *       contains a valid kernel stack pointer. It is also
> 	 *       critical that we don't start using the kernel stack
> -	 *       until after sr7 has been set to 0.
> +	 *       until after sr7 has been set to 0. To ensure this we
> +	 *       use a rsm/ssm pair to make this operation atomic.
> +	 *       At syscall entry %sr2 points to kernel space, otherwise
> +	 *       syscalls wouldn't work.
> 	 */
> +	rsm     PSW_SM_I, %r0			/* turn interrupts off =
*/
> +	STREGM	%r30,FRAME_SIZE(%sr2, %r1)	/* save usp on kernel =
stack */
> +	copy    %r1, %r30			/* switch to kernel =
stack */
> +
> +	mfsp    %sr7,%r1                        /* get user sr7 */
> +	mtsp    %r1,%sr3                        /* store user sr7 in sr3 =
*/
>=20
> 	mtsp	%r0,%sr7			/* get kernel space into =
sr7 */
> -	STREGM	%r1,FRAME_SIZE(%r30)		/* save r1 (usp) here =
for now */
> +	ssm     PSW_SM_I, %r0			/* turn interrupts on */
> +
> 	mfctl	%cr30,%r1			/* get task ptr in %r1 =
*/
> 	LDREG	TI_TASK(%r1),%r1


The above doesn't assemble.  The STREGM instruction doesn't allow =
explicit space register
selection with long displacements.

The attached patch does assemble and v4.7.10 boots successfully with =
change.

I'm thinking we might now be able to remove the restriction on =
scheduling on the gateway page.

Signed-off-by: John David Anglin <dave.anglin@bell.net>



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diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index d03422e..deec1f8 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -106,8 +106,6 @@ linux_gateway_entry:
 	mtsp	%r0,%sr4			/* get kernel space into sr4 */
 	mtsp	%r0,%sr5			/* get kernel space into sr5 */
 	mtsp	%r0,%sr6			/* get kernel space into sr6 */
-	mfsp    %sr7,%r1                        /* save user sr7 */
-	mtsp    %r1,%sr3                        /* and store it in sr3 */
 
 #ifdef CONFIG_64BIT
 	/* for now we can *always* set the W bit on entry to the syscall
@@ -133,6 +131,14 @@ linux_gateway_entry:
 	depdi	0, 31, 32, %r21
 1:	
 #endif
+
+	/* We use a rsm/ssm pair to prevent sr3 from being clobbered
+	 * by external interrupts.
+	 */
+	mfsp    %sr7,%r1                        /* save user sr7 */
+	rsm	PSW_SM_I, %r0			/* disable interrupts */
+	mtsp    %r1,%sr3                        /* and store it in sr3 */
+
 	mfctl   %cr30,%r1
 	xor     %r1,%r30,%r30                   /* ye olde xor trick */
 	xor     %r1,%r30,%r1
@@ -147,6 +153,7 @@ linux_gateway_entry:
 	 */
 
 	mtsp	%r0,%sr7			/* get kernel space into sr7 */
+	ssm	PSW_SM_I, %r0			/* enable interrupts */
 	STREGM	%r1,FRAME_SIZE(%r30)		/* save r1 (usp) here for now */
 	mfctl	%cr30,%r1			/* get task ptr in %r1 */
 	LDREG	TI_TASK(%r1),%r1

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Dave
--
John David Anglin	dave.anglin@bell.net

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Subject: Re: [PATCH] parisc: Ensure consistent state when switching to kernel
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On 29.10.2016 05:00, John David Anglin wrote:
> On 2016-10-28, at 4:04 PM, Helge Deller wrote:
> 
>> We have one critical section in the syscall entry path in which we switch from
>> the userspace stack to kernel stack. In the event of an external interrupt, the
>> interrupt code distinguishes between those two states by analyzing the value of
>> sr7. If sr7 is zero, it uses the kernel stack. Therefore it's important, that
>> the value of sr7 is in sync with the currently enabled stack.
>>
>> This patch now disables interrupts while executing the critical section.  This
>> prevents the interrupt handler to possibly see an inconsitent state which in
>> the worst case can lead to crashes.
>>
>> Interestingly, in the syscall exit path interrupts were already disabled in the
>> critical section which switches back to the userspace stack.
>>
>> Cc: <stable@vger.kernel.org>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
>> index d03422e..f13836b 100644
>> --- a/arch/parisc/kernel/syscall.S
>> +++ b/arch/parisc/kernel/syscall.S
>> @@ -106,8 +106,6 @@ linux_gateway_entry:
>> 	mtsp	%r0,%sr4			/* get kernel space into sr4 */
>> 	mtsp	%r0,%sr5			/* get kernel space into sr5 */
>> 	mtsp	%r0,%sr6			/* get kernel space into sr6 */
>> -	mfsp    %sr7,%r1                        /* save user sr7 */
>> -	mtsp    %r1,%sr3                        /* and store it in sr3 */
>>
>> #ifdef CONFIG_64BIT
>> 	/* for now we can *always* set the W bit on entry to the syscall
>> @@ -134,20 +132,26 @@ linux_gateway_entry:
>> 1:	
>> #endif
>> 	mfctl   %cr30,%r1
>> -	xor     %r1,%r30,%r30                   /* ye olde xor trick */
>> -	xor     %r1,%r30,%r1
>> -	xor     %r1,%r30,%r30
>> -	
>> -	ldo     THREAD_SZ_ALGN+FRAME_SIZE(%r30),%r30  /* set up kernel stack */
>> +	ldo     THREAD_SZ_ALGN+FRAME_SIZE(%r1),%r1  /* set up kernel stack */
>>
>> 	/* N.B.: It is critical that we don't set sr7 to 0 until r30
>> 	 *       contains a valid kernel stack pointer. It is also
>> 	 *       critical that we don't start using the kernel stack
>> -	 *       until after sr7 has been set to 0.
>> +	 *       until after sr7 has been set to 0. To ensure this we
>> +	 *       use a rsm/ssm pair to make this operation atomic.
>> +	 *       At syscall entry %sr2 points to kernel space, otherwise
>> +	 *       syscalls wouldn't work.
>> 	 */
>> +	rsm     PSW_SM_I, %r0			/* turn interrupts off */
>> +	STREGM	%r30,FRAME_SIZE(%sr2, %r1)	/* save usp on kernel stack */
>> +	copy    %r1, %r30			/* switch to kernel stack */
>> +
>> +	mfsp    %sr7,%r1                        /* get user sr7 */
>> +	mtsp    %r1,%sr3                        /* store user sr7 in sr3 */
>>
>> 	mtsp	%r0,%sr7			/* get kernel space into sr7 */
>> -	STREGM	%r1,FRAME_SIZE(%r30)		/* save r1 (usp) here for now */
>> +	ssm     PSW_SM_I, %r0			/* turn interrupts on */
>> +
>> 	mfctl	%cr30,%r1			/* get task ptr in %r1 */
>> 	LDREG	TI_TASK(%r1),%r1
> 
> 
> The above doesn't assemble.  The STREGM instruction doesn't allow explicit space register
> selection with long displacements.

Argh.
The assembler didn't even complained, but after looking at the 
generated assembly you are right.
Thanks for noticing!  
 
> The attached patch does assemble and v4.7.10 boots successfully with change.
 
> I'm thinking we might now be able to remove the restriction on scheduling on the gateway page.

Yes, probably.

Helge
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index a9b9407..6b0741e 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -368,7 +368,9 @@
 
 #define __IGNORE_select		/* newselect */
 #define __IGNORE_fadvise64	/* fadvise64_64 */

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Subject: [PATCH] parisc: Use LINUX_GATEWAY_ADDR define instead of hardcoded
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LINUX_GATEWAY_ADDR is defined in unistd.h. Let's use it.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index d03422e..d3407cf 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -100,7 +100,7 @@ set_thread_pointer:
 	.endr
 
 /* This address must remain fixed at 0x100 for glibc's syscalls to work */
-	.align 256
+	.align LINUX_GATEWAY_ADDR
 linux_gateway_entry:
 	gate	.+8, %r0			/* become privileged */
 	mtsp	%r0,%sr4			/* get kernel space into sr4 */
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Helge Deller wrote:

> LINUX_GATEWAY_ADDR is defined in unistd.h. Let's use it.

value value?
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On 2016-10-27, at 2:39 PM, Helge Deller wrote:

> diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
> index 0a393a0..c04d946 100644
> --- a/arch/parisc/kernel/sys_parisc.c
> +++ b/arch/parisc/kernel/sys_parisc.c
> @@ -36,12 +36,11 @@
> #include <linux/personality.h>
> #include <linux/random.h>
> 
> -/* we construct an artificial offset for the mapping based on the physical
> - * address of the kernel mapping variable */
> +/* keep track of the last mapping address offset in the private_data field */
> #define GET_LAST_MMAP(filp)		\
> -	(filp ? ((unsigned long) filp->f_mapping) >> 8 : 0UL)
> +	(filp && (file_count(filp) > 0) ? (unsigned long) filp->private_data : 0UL)
> #define SET_LAST_MMAP(filp, val)	\
> -	 { /* nothing */ }
> +	{ if (filp) filp->private_data = (void *) (val); }

In my testing, this causes hpmc's doing serial io.

Dave
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On 30.10.2016 11:23, Rolf Eike Beer wrote:
> Helge Deller wrote:
> 
>> LINUX_GATEWAY_ADDR is defined in unistd.h. Let's use it.
> 
> value value?

I do see huge value in being able to see where this value is being
used. A new developer who uses grep will find the relevant assembler
code as well.

Helge
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From: Christopher Covington <cov@codeaurora.org>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.kernel.cross-arch
Subject: [RFC v2 7/7] mm: Remove mm-arch-hooks.h
Date: Tue,  1 Nov 2016 11:11:01 -0600
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Cc: Christopher Covington <cov@codeaurora.org>,
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The only use case, VDSO remap support for PowerPC, has been made generic
instead of architecture-specific. Since the infrastructure is no longer
needed, remove it.

Signed-off-by: Christopher Covington <cov@codeaurora.org>
---
 arch/alpha/include/asm/Kbuild      |  1 -
 arch/arc/include/asm/Kbuild        |  1 -
 arch/arm/include/asm/Kbuild        |  1 -
 arch/arm64/include/asm/Kbuild      |  1 -
 arch/avr32/include/asm/Kbuild      |  1 -
 arch/blackfin/include/asm/Kbuild   |  1 -
 arch/c6x/include/asm/Kbuild        |  1 -
 arch/cris/include/asm/Kbuild       |  1 -
 arch/frv/include/asm/Kbuild        |  1 -
 arch/h8300/include/asm/Kbuild      |  1 -
 arch/hexagon/include/asm/Kbuild    |  1 -
 arch/ia64/include/asm/Kbuild       |  1 -
 arch/m32r/include/asm/Kbuild       |  1 -
 arch/m68k/include/asm/Kbuild       |  1 -
 arch/metag/include/asm/Kbuild      |  1 -
 arch/microblaze/include/asm/Kbuild |  1 -
 arch/mips/include/asm/Kbuild       |  1 -
 arch/mn10300/include/asm/Kbuild    |  1 -
 arch/nios2/include/asm/Kbuild      |  1 -
 arch/openrisc/include/asm/Kbuild   |  1 -
 arch/parisc/include/asm/Kbuild     |  1 -
 arch/s390/include/asm/Kbuild       |  1 -
 arch/score/include/asm/Kbuild      |  1 -
 arch/sh/include/asm/Kbuild         |  1 -
 arch/sparc/include/asm/Kbuild      |  1 -
 arch/tile/include/asm/Kbuild       |  1 -
 arch/um/include/asm/Kbuild         |  1 -
 arch/unicore32/include/asm/Kbuild  |  1 -
 arch/x86/include/asm/Kbuild        |  1 -
 arch/xtensa/include/asm/Kbuild     |  1 -
 include/asm-generic/mm_hooks.h     | 16 ----------------
 mm/mremap.c                        | 20 +++++++++++++++++---
 32 files changed, 17 insertions(+), 49 deletions(-)

diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild
index bf8475c..0a5e0ec 100644
--- a/arch/alpha/include/asm/Kbuild
+++ b/arch/alpha/include/asm/Kbuild
@@ -6,7 +6,6 @@ generic-y += exec.h
 generic-y += export.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += preempt.h
 generic-y += sections.h
 generic-y += trace_clock.h
diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild
index c332604..e6059a8 100644
--- a/arch/arc/include/asm/Kbuild
+++ b/arch/arc/include/asm/Kbuild
@@ -22,7 +22,6 @@ generic-y += kvm_para.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mman.h
 generic-y += msgbuf.h
 generic-y += msi.h
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index 0745538..44b717c 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -15,7 +15,6 @@ generic-y += irq_regs.h
 generic-y += kdebug.h
 generic-y += local.h
 generic-y += local64.h
-generic-y += mm-arch-hooks.h
 generic-y += msgbuf.h
 generic-y += msi.h
 generic-y += param.h
diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
index 44e1d7f..a42a136 100644
--- a/arch/arm64/include/asm/Kbuild
+++ b/arch/arm64/include/asm/Kbuild
@@ -20,7 +20,6 @@ generic-y += kvm_para.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mman.h
 generic-y += msgbuf.h
 generic-y += msi.h
diff --git a/arch/avr32/include/asm/Kbuild b/arch/avr32/include/asm/Kbuild
index 241b9b9..519810d 100644
--- a/arch/avr32/include/asm/Kbuild
+++ b/arch/avr32/include/asm/Kbuild
@@ -12,7 +12,6 @@ generic-y += irq_work.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += param.h
 generic-y += percpu.h
 generic-y += preempt.h
diff --git a/arch/blackfin/include/asm/Kbuild b/arch/blackfin/include/asm/Kbuild
index 91d49c0..c80181e 100644
--- a/arch/blackfin/include/asm/Kbuild
+++ b/arch/blackfin/include/asm/Kbuild
@@ -21,7 +21,6 @@ generic-y += kvm_para.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mman.h
 generic-y += msgbuf.h
 generic-y += mutex.h
diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
index 64465e7..1b9cbed 100644
--- a/arch/c6x/include/asm/Kbuild
+++ b/arch/c6x/include/asm/Kbuild
@@ -27,7 +27,6 @@ generic-y += kdebug.h
 generic-y += kmap_types.h
 generic-y += local.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mman.h
 generic-y += mmu.h
 generic-y += mmu_context.h
diff --git a/arch/cris/include/asm/Kbuild b/arch/cris/include/asm/Kbuild
index 1778805..8e98d03 100644
--- a/arch/cris/include/asm/Kbuild
+++ b/arch/cris/include/asm/Kbuild
@@ -24,7 +24,6 @@ generic-y += linkage.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mman.h
 generic-y += module.h
 generic-y += msgbuf.h
diff --git a/arch/frv/include/asm/Kbuild b/arch/frv/include/asm/Kbuild
index 1fa084c..2c987dc 100644
--- a/arch/frv/include/asm/Kbuild
+++ b/arch/frv/include/asm/Kbuild
@@ -4,7 +4,6 @@ generic-y += cputime.h
 generic-y += exec.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += preempt.h
 generic-y += trace_clock.h
 generic-y += word-at-a-time.h
diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
index 373cb23..2a63a32 100644
--- a/arch/h8300/include/asm/Kbuild
+++ b/arch/h8300/include/asm/Kbuild
@@ -33,7 +33,6 @@ generic-y += linkage.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mman.h
 generic-y += mmu.h
 generic-y += mmu_context.h
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index db8ddab..0988816 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -28,7 +28,6 @@ generic-y += kmap_types.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mman.h
 generic-y += msgbuf.h
 generic-y += pci.h
diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild
index 502a91d..dc05773 100644
--- a/arch/ia64/include/asm/Kbuild
+++ b/arch/ia64/include/asm/Kbuild
@@ -4,7 +4,6 @@ generic-y += exec.h
 generic-y += irq_work.h
 generic-y += kvm_para.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += preempt.h
 generic-y += trace_clock.h
 generic-y += vtime.h
diff --git a/arch/m32r/include/asm/Kbuild b/arch/m32r/include/asm/Kbuild
index 860e440..f09a5fd 100644
--- a/arch/m32r/include/asm/Kbuild
+++ b/arch/m32r/include/asm/Kbuild
@@ -5,7 +5,6 @@ generic-y += exec.h
 generic-y += irq_work.h
 generic-y += kvm_para.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += module.h
 generic-y += preempt.h
 generic-y += sections.h
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
index eb85bd9..1555bc1 100644
--- a/arch/m68k/include/asm/Kbuild
+++ b/arch/m68k/include/asm/Kbuild
@@ -18,7 +18,6 @@ generic-y += kvm_para.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mman.h
 generic-y += mutex.h
 generic-y += percpu.h
diff --git a/arch/metag/include/asm/Kbuild b/arch/metag/include/asm/Kbuild
index 29acb89d..611c0df 100644
--- a/arch/metag/include/asm/Kbuild
+++ b/arch/metag/include/asm/Kbuild
@@ -25,7 +25,6 @@ generic-y += kvm_para.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += msgbuf.h
 generic-y += mutex.h
 generic-y += param.h
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
index b0ae88c..cefeaba 100644
--- a/arch/microblaze/include/asm/Kbuild
+++ b/arch/microblaze/include/asm/Kbuild
@@ -6,7 +6,6 @@ generic-y += device.h
 generic-y += exec.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += preempt.h
 generic-y += syscalls.h
 generic-y += trace_clock.h
diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild
index 9740066..f0ce0ae 100644
--- a/arch/mips/include/asm/Kbuild
+++ b/arch/mips/include/asm/Kbuild
@@ -8,7 +8,6 @@ generic-y += emergency-restart.h
 generic-y += irq_work.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mutex.h
 generic-y += parport.h
 generic-y += percpu.h
diff --git a/arch/mn10300/include/asm/Kbuild b/arch/mn10300/include/asm/Kbuild
index 1c8dd0f..27cbc02 100644
--- a/arch/mn10300/include/asm/Kbuild
+++ b/arch/mn10300/include/asm/Kbuild
@@ -5,7 +5,6 @@ generic-y += cputime.h
 generic-y += exec.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += preempt.h
 generic-y += sections.h
 generic-y += trace_clock.h
diff --git a/arch/nios2/include/asm/Kbuild b/arch/nios2/include/asm/Kbuild
index d63330e..e224789 100644
--- a/arch/nios2/include/asm/Kbuild
+++ b/arch/nios2/include/asm/Kbuild
@@ -30,7 +30,6 @@ generic-y += kmap_types.h
 generic-y += kvm_para.h
 generic-y += local.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mman.h
 generic-y += module.h
 generic-y += msgbuf.h
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
index 2832f03..2a2e39b 100644
--- a/arch/openrisc/include/asm/Kbuild
+++ b/arch/openrisc/include/asm/Kbuild
@@ -36,7 +36,6 @@ generic-y += kmap_types.h
 generic-y += kvm_para.h
 generic-y += local.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mman.h
 generic-y += module.h
 generic-y += msgbuf.h
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index f9b3a81..12b341d 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -15,7 +15,6 @@ generic-y += kvm_para.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mutex.h
 generic-y += param.h
 generic-y += percpu.h
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index 20f196b..c1ef825 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -4,7 +4,6 @@ generic-y += clkdev.h
 generic-y += export.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += preempt.h
 generic-y += trace_clock.h
 generic-y += word-at-a-time.h
diff --git a/arch/score/include/asm/Kbuild b/arch/score/include/asm/Kbuild
index a05218f..ff19975 100644
--- a/arch/score/include/asm/Kbuild
+++ b/arch/score/include/asm/Kbuild
@@ -7,7 +7,6 @@ generic-y += clkdev.h
 generic-y += cputime.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += preempt.h
 generic-y += sections.h
 generic-y += trace_clock.h
diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index 751c337..7d1fb2c 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -17,7 +17,6 @@ generic-y += kvm_para.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mman.h
 generic-y += msgbuf.h
 generic-y += param.h
diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
index cfc9180..0867d5a 100644
--- a/arch/sparc/include/asm/Kbuild
+++ b/arch/sparc/include/asm/Kbuild
@@ -13,7 +13,6 @@ generic-y += linkage.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += module.h
 generic-y += mutex.h
 generic-y += preempt.h
diff --git a/arch/tile/include/asm/Kbuild b/arch/tile/include/asm/Kbuild
index ba35c41..40d22b4 100644
--- a/arch/tile/include/asm/Kbuild
+++ b/arch/tile/include/asm/Kbuild
@@ -19,7 +19,6 @@ generic-y += irq_regs.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += msgbuf.h
 generic-y += mutex.h
 generic-y += param.h
diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild
index 904f3eb..33c1d3e 100644
--- a/arch/um/include/asm/Kbuild
+++ b/arch/um/include/asm/Kbuild
@@ -16,7 +16,6 @@ generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mutex.h
 generic-y += param.h
 generic-y += pci.h
diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild
index 256c45b..932070c 100644
--- a/arch/unicore32/include/asm/Kbuild
+++ b/arch/unicore32/include/asm/Kbuild
@@ -26,7 +26,6 @@ generic-y += kdebug.h
 generic-y += kmap_types.h
 generic-y += local.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += mman.h
 generic-y += module.h
 generic-y += msgbuf.h
diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild
index 2cfed17..51b3d95 100644
--- a/arch/x86/include/asm/Kbuild
+++ b/arch/x86/include/asm/Kbuild
@@ -15,4 +15,3 @@ generic-y += cputime.h
 generic-y += dma-contiguous.h
 generic-y += early_ioremap.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index 28cf4c5..bdade99 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -18,7 +18,6 @@ generic-y += linkage.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
 generic-y += percpu.h
 generic-y += preempt.h
 generic-y += resource.h
diff --git a/include/asm-generic/mm_hooks.h b/include/asm-generic/mm_hooks.h
index 73f09f1..f4d43aa 100644
--- a/include/asm-generic/mm_hooks.h
+++ b/include/asm-generic/mm_hooks.h
@@ -3,7 +3,6 @@
  * included in asm-FOO/mmu_context.h for any arch FOO which doesn't need to
  * specially hook these.
  *
- * arch_remap originally from include/linux-mm-arch-hooks.h
  * arch_unmap originally from arch/powerpc/include/asm/mmu_context.h
  * Copyright (C) 2015, IBM Corporation
  * Author: Laurent Dufour <ldufour@linux.vnet.ibm.com>
@@ -35,21 +34,6 @@ static inline void arch_unmap(struct mm_struct *mm,
 #endif /* CONFIG_GENERIC_VDSO */
 }
 
-static inline void arch_remap(struct mm_struct *mm,
-			      unsigned long old_start, unsigned long old_end,
-			      unsigned long new_start, unsigned long new_end)
-{
-#ifdef CONFIG_GENERIC_VDSO
-	/*
-	 * mremap() doesn't allow moving multiple vmas so we can limit the
-	 * check to old_addr == vdso.
-	 */
-	if (old_addr == mm->context.vdso)
-		mm->context.vdso = new_addr;
-
-#endif /* CONFIG_GENERIC_VDSO */
-}
-
 static inline void arch_bprm_mm_init(struct mm_struct *mm,
 				     struct vm_area_struct *vma)
 {
diff --git a/mm/mremap.c b/mm/mremap.c
index da22ad2..0d0ea14 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -5,6 +5,14 @@
  *
  *	Address space accounting code	<alan@lxorguk.ukuu.org.uk>
  *	(C) Copyright 2002 Red Hat Inc, All Rights Reserved
+ *
+ *	arch_remap originally from include/linux-mm-arch-hooks.h
+ *	Copyright (C) 2015, IBM Corporation
+ *	Author: Laurent Dufour <ldufour@linux.vnet.ibm.com>
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License version 2 as
+ *	published by the Free Software Foundation.
  */
 
 #include <linux/mm.h>
@@ -21,7 +29,6 @@
 #include <linux/syscalls.h>
 #include <linux/mmu_notifier.h>
 #include <linux/uaccess.h>
-#include <linux/mm-arch-hooks.h>
 
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
@@ -293,8 +300,15 @@ static unsigned long move_vma(struct vm_area_struct *vma,
 		old_addr = new_addr;
 		new_addr = err;
 	} else {
-		arch_remap(mm, old_addr, old_addr + old_len,
-			   new_addr, new_addr + new_len);
+#ifdef CONFIG_GENERIC_VDSO
+		/*
+		 * mremap() doesn't allow moving multiple vmas so we can limit
+		 * the check to old_addr == vdso.
+		 */
+		if (old_addr == mm->context.vdso)
+			mm->context.vdso = new_addr;
+
+#endif /* CONFIG_GENERIC_VDSO */
 	}
 
 	/* Conceal VM_ACCOUNT so old reservation is not undone */
-- 
Qualcomm Datacenter Technologies as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.

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From - Thu Nov 08 21:39:16 2018
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From: Jeroen Roovers <jer@gentoo.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Use LINUX_GATEWAY_ADDR define instead of
 hardcoded value value
Date: Tue, 1 Nov 2016 19:25:12 +0100
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On Mon, 31 Oct 2016 10:26:37 +0100
Helge Deller <deller@gmx.de> wrote:

> On 30.10.2016 11:23, Rolf Eike Beer wrote:
> > Helge Deller wrote:
> >   
> >> LINUX_GATEWAY_ADDR is defined in unistd.h. Let's use it.  
> > 
> > value value?  
> 
> I do see huge value in being able to see where this value is being
> used. A new developer who uses grep will find the relevant assembler
> code as well.

Yes, but "value value"! ;-)


Regards,
     jer
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This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to
avoid invoking cache line invalidation if the driver will just handle it
via a sync_for_cpu or sync_for_device call.

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
---
 arch/parisc/kernel/pci-dma.c |   20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 02d9ed0..be55ede 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -459,7 +459,9 @@ static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
 	void *addr = page_address(page) + offset;
 	BUG_ON(direction == DMA_NONE);
 
-	flush_kernel_dcache_range((unsigned long) addr, size);
+	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		flush_kernel_dcache_range((unsigned long) addr, size);
+
 	return virt_to_phys(addr);
 }
 
@@ -469,8 +471,11 @@ static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 {
 	BUG_ON(direction == DMA_NONE);
 
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+		return;
+
 	if (direction == DMA_TO_DEVICE)
-	    return;
+		return;
 
 	/*
 	 * For PCI_DMA_FROMDEVICE this flush is not necessary for the
@@ -479,7 +484,6 @@ static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 	 */
 
 	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle), size);
-	return;
 }
 
 static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
@@ -496,6 +500,10 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
 
 		sg_dma_address(sg) = (dma_addr_t) virt_to_phys(vaddr);
 		sg_dma_len(sg) = sg->length;
+
+		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+			continue;
+
 		flush_kernel_dcache_range(vaddr, sg->length);
 	}
 	return nents;
@@ -510,14 +518,16 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 
 	BUG_ON(direction == DMA_NONE);
 
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+		return;
+
 	if (direction == DMA_TO_DEVICE)
-	    return;
+		return;
 
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
 	for_each_sg(sglist, sg, nents, i)
 		flush_kernel_vmap_range(sg_virt(sg), sg->length);
-	return;
 }
 
 static void pa11_dma_sync_single_for_cpu(struct device *dev,

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Subject: Re: [PATCH] parisc: Use LINUX_GATEWAY_ADDR define instead of
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On 01.11.2016 19:25, Jeroen Roovers wrote:
> On Mon, 31 Oct 2016 10:26:37 +0100
> Helge Deller <deller@gmx.de> wrote:
> 
>> On 30.10.2016 11:23, Rolf Eike Beer wrote:
>>> Helge Deller wrote:
>>>   
>>>> LINUX_GATEWAY_ADDR is defined in unistd.h. Let's use it.  
>>>
>>> value value?  
>>
>> I do see huge value in being able to see where this value is being
>> used. A new developer who uses grep will find the relevant assembler
>> code as well.
> 
> Yes, but "value value"! ;-)

Yes, I'm blind :-)
It took me quite some time (and one additional off-list reminder
from Rolf Eike) to understand that you both meant the commit title :-)
I'll fix it before I send upstream.
Thanks!

Helge
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Subject: [GIT PULL] parisc architecture fixes and updates for 4.9-rc3
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Hi Linus,

Please pull some updates and fixes for the parisc architecture for v4.9-rc3 from
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.9-3

The first three patches are trivial and add some required KERN_CONT, ignore the new
pkey syscalls on parisc and use the LINUX_GATEWAY_ADDR define instead of hardcoded
values.

The two patches from Dave Anglin are important. The first one avoids trashing
the sr2 and sr3 space registers in the Light-weight syscall path. Especially
the usage of sr3 is critical since it may get trashed by the interrupt handler.
The second patch is even more important and tagged for stable series. It
protects one critical section in the syscall entry path by disabling local
interrupts. Without disabling interrupts, the sr7 space register may not be in
sync with the current stack setup and thus an incoming hardware interrupt may
destroy memory in random userspace areas. 

Thanks,
Helge
----------------------------------------------------------------
Helge Deller (3):
      parisc: use KERN_CONT when printing device inventory
      parisc: Use LINUX_GATEWAY_ADDR define instead of hardcoded value
      parisc: Ignore the pkey system calls for now

John David Anglin (2):
      parisc: Avoid trashing sr2 and sr3 in LWS code
      parisc: Ensure consistent state when switching to kernel stack at syscall entry

 arch/parisc/include/uapi/asm/unistd.h |  4 ++-
 arch/parisc/kernel/drivers.c          |  6 ++--
 arch/parisc/kernel/syscall.S          | 66 ++++++++++++++++++-----------------
 3 files changed, 40 insertions(+), 36 deletions(-)
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Off and on, I've been working on a user-only target of hppa to qemu.  It's now 
about 95% working.  If anyone would like to try it out, it's available at

   git://github.com/rth7680/qemu.git tgt-hppa

While implementing the unit-type instructions, I wondered why no one (outside 
hp?) had written a version of the string routines utilizing the UXOR insn, with 
the SomeByteZero and NoByteZero conditions.

Attached are versions of strlen, strchr and strrchr.  They pass simple tests 
within my emulator; I'd be interested to know if they pass full glibc testing 
on real hardware.


Thanks,


r~

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From - Thu Nov 08 21:39:17 2018
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From: "Helge Deller" <deller@gmx.de>
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Subject: Aw: hppa qemu and string functions
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Hi Richard,

> Off and on, I've been working on a user-only target of hppa to qemu.  It's now 
> about 95% working.  If anyone would like to try it out, it's available at
>    git://github.com/rth7680/qemu.git tgt-hppa

COOL!
I'm happy to test, but can you shortly describe the required steps how I can build & test it?

With "user-only target of hppa" I assume this means that I can run hppa binaries
on e.g. x86-64, similiar to what is described here: https://wiki.debian.org/QemuUserEmulation ?

> While implementing the unit-type instructions, I wondered why no one (outside 
> hp?) had written a version of the string routines utilizing the UXOR insn, with 
> the SomeByteZero and NoByteZero conditions.

Interesting.
I assume nobody did, because there are a few hppa/linux/glibc users anyway ? :-)
 
> Attached are versions of strlen, strchr and strrchr.  They pass simple tests 
> within my emulator; I'd be interested to know if they pass full glibc testing 
> on real hardware.

If you like I can give you access to a hppa-linux box...

Helge
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Subject: Re: Aw: hppa qemu and string functions
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On 11/09/2016 07:51 AM, Helge Deller wrote:
> Hi Richard,
>
>> Off and on, I've been working on a user-only target of hppa to qemu.  It's now
>> about 95% working.  If anyone would like to try it out, it's available at
>>    git://github.com/rth7680/qemu.git tgt-hppa
>
> COOL!
> I'm happy to test, but can you shortly describe the required steps how I can build & test it?
>
> With "user-only target of hppa" I assume this means that I can run hppa binaries
> on e.g. x86-64, similiar to what is described here: https://wiki.debian.org/QemuUserEmulation ?
>
>> While implementing the unit-type instructions, I wondered why no one (outside
>> hp?) had written a version of the string routines utilizing the UXOR insn, with
>> the SomeByteZero and NoByteZero conditions.
>
> Interesting.
> I assume nobody did, because there are a few hppa/linux/glibc users anyway ? :-)
Probably a safe assumption.  I'm pretty sure the hpux string routines 
used uxor.  There was also at least one hpux routine in libc which used 
the branch-in-delay-slot-of-branch trick, but I can't recall why it was 
useful.

jeff

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From - Thu Nov 08 21:39:17 2018
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On 11/09/2016 03:51 PM, Helge Deller wrote:
> Hi Richard,
>
>> Off and on, I've been working on a user-only target of hppa to qemu.  It's now
>> about 95% working.  If anyone would like to try it out, it's available at
>>    git://github.com/rth7680/qemu.git tgt-hppa
>
> COOL!
> I'm happy to test, but can you shortly describe the required steps how I can build & test it?

Check out the indicated branch, configure --target-list=hppa-linux-user, make, 
install.  qemu-hppa will be the user-mode emulator.

>
> With "user-only target of hppa" I assume this means that I can run hppa binaries
> on e.g. x86-64, similiar to what is described here: https://wiki.debian.org/QemuUserEmulation ?

Yes, exactly.


r~
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Subject: [mm PATCH v3 14/23] arch/parisc: Add option to skip DMA sync as a
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This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to
avoid invoking cache line invalidation if the driver will just handle it
via a sync_for_cpu or sync_for_device call.

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
---
 arch/parisc/kernel/pci-dma.c |   20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 02d9ed0..be55ede 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -459,7 +459,9 @@ static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
 	void *addr = page_address(page) + offset;
 	BUG_ON(direction == DMA_NONE);
 
-	flush_kernel_dcache_range((unsigned long) addr, size);
+	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		flush_kernel_dcache_range((unsigned long) addr, size);
+
 	return virt_to_phys(addr);
 }
 
@@ -469,8 +471,11 @@ static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 {
 	BUG_ON(direction == DMA_NONE);
 
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+		return;
+
 	if (direction == DMA_TO_DEVICE)
-	    return;
+		return;
 
 	/*
 	 * For PCI_DMA_FROMDEVICE this flush is not necessary for the
@@ -479,7 +484,6 @@ static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
 	 */
 
 	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle), size);
-	return;
 }
 
 static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
@@ -496,6 +500,10 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
 
 		sg_dma_address(sg) = (dma_addr_t) virt_to_phys(vaddr);
 		sg_dma_len(sg) = sg->length;
+
+		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+			continue;
+
 		flush_kernel_dcache_range(vaddr, sg->length);
 	}
 	return nents;
@@ -510,14 +518,16 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 
 	BUG_ON(direction == DMA_NONE);
 
+	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+		return;
+
 	if (direction == DMA_TO_DEVICE)
-	    return;
+		return;
 
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
 	for_each_sg(sglist, sg, nents, i)
 		flush_kernel_vmap_range(sg_virt(sg), sg->length);
-	return;
 }
 
 static void pa11_dma_sync_single_for_cpu(struct device *dev,

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From - Thu Nov 08 21:39:17 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Change call ABI on PA-RISC
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I'm thinking about adding a "-mabi=" option to change the call ABI.  Currently, objects larger than 64 bits
in the 32-bit runtime are passed by reference and the callee copies the object when necessary.  This is
opposite to x86 where the caller does the copies.  Most targets are caller copies.

The problem with callee copies is that it doesn't work with openmp.  There are race problems and sometimes
we get internal compiler errors with openmp code due to this problem.  This became apparent when new testcases
were added to gcc-6.  It's tough to fix this problem in gcc.

This is gcc PR:
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68733>.

This is fixed if we change abi to caller copies (maybe "-mabi=gnu" and "-mabi=hp").  The default could be set
by a configure options.  Probably, we would want the new gnu abi on linux as the default.  However, there is
the potential to break stuff during the migration to the new abi.

Opinions?

Dave
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On 12.11.2016 19:00, John David Anglin wrote:
> I'm thinking about adding a "-mabi=" option to change the call ABI.  Currently, objects larger than 64 bits
> in the 32-bit runtime are passed by reference and the callee copies the object when necessary.  This is
> opposite to x86 where the caller does the copies.  Most targets are caller copies.
> 
> The problem with callee copies is that it doesn't work with openmp.  There are race problems and sometimes
> we get internal compiler errors with openmp code due to this problem.  This became apparent when new testcases
> were added to gcc-6.  It's tough to fix this problem in gcc.
> 
> This is gcc PR:
> <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68733>.
> 
> This is fixed if we change abi to caller copies (maybe "-mabi=gnu" and "-mabi=hp").  The default could be set
> by a configure options.  Probably, we would want the new gnu abi on linux as the default.  However, there is
> the potential to break stuff during the migration to the new abi.
> 
> Opinions?

PA-RISC Linux is a niche platform. We always had problems with platform-specifics
which were different to the more widely-used platforms (e.g. stack-grows-upwards, 
more signal numbers (>32) than other platforms, EWOULDBLOCK != EAGAIN, ...).
That said, I like your proposal if we then gain openmp support and if it doesn't
heavily breaks other stuff.

If you are going to change the ABI, maybe we can add more things as well?
Which comes to my mind here is for example an optimized mcount() function 
which allows changing the return pointer (see -mmcount-ra-address on MIPS) ?

Helge
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On 11/13/2016 11:37 AM, Helge Deller wrote:
> On 12.11.2016 19:00, John David Anglin wrote:
>> I'm thinking about adding a "-mabi=" option to change the call ABI.  Currently, objects larger than 64 bits
>> in the 32-bit runtime are passed by reference and the callee copies the object when necessary.  This is
>> opposite to x86 where the caller does the copies.  Most targets are caller copies.
>>
>> The problem with callee copies is that it doesn't work with openmp.  There are race problems and sometimes
>> we get internal compiler errors with openmp code due to this problem.  This became apparent when new testcases
>> were added to gcc-6.  It's tough to fix this problem in gcc.
>>
>> This is gcc PR:
>> <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68733>.
>>
>> This is fixed if we change abi to caller copies (maybe "-mabi=gnu" and "-mabi=hp").  The default could be set
>> by a configure options.  Probably, we would want the new gnu abi on linux as the default.  However, there is
>> the potential to break stuff during the migration to the new abi.
>>
>> Opinions?
>
> PA-RISC Linux is a niche platform. We always had problems with platform-specifics
> which were different to the more widely-used platforms (e.g. stack-grows-upwards,
> more signal numbers (>32) than other platforms, EWOULDBLOCK != EAGAIN, ...).
> That said, I like your proposal if we then gain openmp support and if it doesn't
> heavily breaks other stuff.
The motivation was to allow the callee to avoid the copy when it knew it 
wouldn't be changing the object.  And you could do that through a chain 
of calls avoiding lots of copies along the way.

This turned out to be a huge impact for co-locating the mach kernel and 
OS personality sever within a single address space.  We started that 
research with a pre-bugfix compiler.  During the research I fixed GCC's 
implementation to match the ABI (in response to a bug report I'm sure) 
and didn't think much of it.  When we finally got the co-located stuff 
working and compared it to separate address spaces baselines we'd 
gathered earlier the performance gains were huge and we were exceedingly 
happy.

Of course, I wanted to understand why -- so I dug deeper and eventually 
found that MIG would generate interface code which passed around things 
by-value all the time.  The compiler bugfix essentially allowed the 
compiler to avoid the copy in the callee because the callee didn't 
modify the object.  So we were avoiding a ton of memcpy traffic.

In the end the impact of the compiler bugfix was actually larger than 
the primary effect we were looking for (avoiding context switches, tlb 
flushing, caching effects, etc).

Anyway, as long as the world gets rebuilt and you never mix-match 
objects this should be safe.


> If you are going to change the ABI, maybe we can add more things as well?
> Which comes to my mind here is for example an optimized mcount() function
> which allows changing the return pointer (see -mmcount-ra-address on MIPS) ?
As in twiddling RP to return to a different point?  That's an 
exceedingly bad idea on PA8000 and beyond -- it totally hoses the branch 
predictors.  That's why we turned off the twiddle RP in the delay slot 
of a call to emulate a branch after returning from a call.


jeff
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On 13.11.2016 19:56, Jeff Law wrote:
> On 11/13/2016 11:37 AM, Helge Deller wrote:
>> If you are going to change the ABI, maybe we can add more things as well?
>> Which comes to my mind here is for example an optimized mcount() function
>> which allows changing the return pointer (see -mmcount-ra-address on MIPS) ?

> As in twiddling RP to return to a different point?

No, that's not the use case for me.

I was working on the ftrace functionality in the Linux kernel.
I'd need to look up the full details again, but as far as I remember one of 
the tracers wants to know the function to which the caller of mcount() would return,
so some kind of simple __builtin_return_address(2).

Helge
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From - Thu Nov 08 21:39:18 2018
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From: Jeff Law <law@redhat.com>
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Subject: Re: Change call ABI on PA-RISC
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On 11/13/2016 12:48 PM, Helge Deller wrote:
> On 13.11.2016 19:56, Jeff Law wrote:
>> On 11/13/2016 11:37 AM, Helge Deller wrote:
>>> If you are going to change the ABI, maybe we can add more things as well?
>>> Which comes to my mind here is for example an optimized mcount() function
>>> which allows changing the return pointer (see -mmcount-ra-address on MIPS) ?
>
>> As in twiddling RP to return to a different point?
>
> No, that's not the use case for me.
>
> I was working on the ftrace functionality in the Linux kernel.
> I'd need to look up the full details again, but as far as I remember one of
> the tracers wants to know the function to which the caller of mcount() would return,
> so some kind of simple __builtin_return_address(2).
Ah.  Isn't that going to be sitting at sp-20 or something like that.  My 
PA is rusty, but my recollection is that's supposed to be at a fixed 
location in the frame.
jeff
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From - Thu Nov 08 21:39:18 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Change call ABI on PA-RISC
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On Sat, Nov 12, 2016 at 1:00 PM, John David Anglin <dave.anglin@bell.net> wrote:
> I'm thinking about adding a "-mabi=" option to change the call ABI.  Currently, objects larger than 64 bits
> in the 32-bit runtime are passed by reference and the callee copies the object when necessary.  This is
> opposite to x86 where the caller does the copies.  Most targets are caller copies.
>
> The problem with callee copies is that it doesn't work with openmp.  There are race problems and sometimes
> we get internal compiler errors with openmp code due to this problem.  This became apparent when new testcases
> were added to gcc-6.  It's tough to fix this problem in gcc.
>
> This is gcc PR:
> <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68733>.
>
> This is fixed if we change abi to caller copies (maybe "-mabi=gnu" and "-mabi=hp").  The default could be set
> by a configure options.  Probably, we would want the new gnu abi on linux as the default.  However, there is
> the potential to break stuff during the migration to the new abi.
>
> Opinions?

I think this is a good idea.

Anything that brings us slowly towards parity with other arches is
better in the long-run.

Any idea how to test the impact?

Cheers,
Carlos.
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From - Thu Nov 08 21:39:18 2018
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Subject: Re: Change call ABI on PA-RISC
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On 2016-11-14 3:21 AM, Jeff Law wrote:
> On 11/13/2016 12:48 PM, Helge Deller wrote:
>> On 13.11.2016 19:56, Jeff Law wrote:
>>> On 11/13/2016 11:37 AM, Helge Deller wrote:
>>>> If you are going to change the ABI, maybe we can add more things as 
>>>> well?
>>>> Which comes to my mind here is for example an optimized mcount() 
>>>> function
>>>> which allows changing the return pointer (see -mmcount-ra-address 
>>>> on MIPS) ?
>>
>>> As in twiddling RP to return to a different point?
>>
>> No, that's not the use case for me.
>>
>> I was working on the ftrace functionality in the Linux kernel.
>> I'd need to look up the full details again, but as far as I remember 
>> one of
>> the tracers wants to know the function to which the caller of 
>> mcount() would return,
>> so some kind of simple __builtin_return_address(2).
> Ah.  Isn't that going to be sitting at sp-20 or something like that.  
> My PA is rusty, but my recollection is that's supposed to be at a 
> fixed location in the frame.
The return address of the the function to which the caller of mcount() 
would return
is passed to mcount() in %r26.  The saved value in the frame is not 
directly useful as one lacks
the frame offset of the routine calling mcount.

In linux, we have a single space runtime and thus the import stubs don't 
modify the return
address when shared library routines are called.  So, the value passed 
in %r26 can be used
directly to lookup the calling function.

Dave

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On 14.11.2016 16:11, John David Anglin wrote:
> On 2016-11-14 3:21 AM, Jeff Law wrote:
>> On 11/13/2016 12:48 PM, Helge Deller wrote:
>>> On 13.11.2016 19:56, Jeff Law wrote:
>>>> On 11/13/2016 11:37 AM, Helge Deller wrote:
>>>>> If you are going to change the ABI, maybe we can add more
>>>>> things as well? Which comes to my mind here is for example an
>>>>> optimized mcount() function which allows changing the return
>>>>> pointer (see -mmcount-ra-address on MIPS) ?
>>> 
>>>> As in twiddling RP to return to a different point?
>>> 
>>> No, that's not the use case for me.

I was wrong.
It's actually the use case to modify the RP...

>>> I was working on the ftrace functionality in the Linux kernel. 
>>> I'd need to look up the full details again, but as far as I
>>> remember one of the tracers wants to know the function to which
>>> the caller of mcount() would return, so some kind of simple
>>> __builtin_return_address(2).

>> Ah.  Isn't that going to be sitting at sp-20 or something like
>> that.  My PA is rusty, but my recollection is that's supposed to be
>> at a fixed location in the frame.

Yes, sp-10.

0000000000000000 <irq_to_desc>:
   0:   08 03 02 41     copy r3,r1
   4:   0f c2 12 c1     std rp,-10(sp)
   8:   08 1e 02 43     copy sp,r3
   c:   73 c1 00 a8     std,ma r1,50(sp)
  10:   37 dd 00 20     ldo 10(sp),ret1
  14:   0c 65 12 d0     std r5,8(r3)
  18:   00 00 14 b9     mfia r25
  1c:   db 45 0b e0     extrd,u,* r26,63,32,r5
  20:   70 64 00 20     std r4,10(r3)
  24:   08 02 02 5a     copy rp,r26
  28:   37 39 3f d1     ldo -18(r25),r25
  2c:   08 1b 02 44     copy dp,r4
  30:   2b 60 00 00     addil L%0,dp,r1
  34:   50 21 00 00     ldd 0(r1),r1
  38:   0c 20 10 c1     ldd 0(r1),r1
  3c:   50 22 00 20     ldd 10(r1),rp
  40:   e8 40 f0 00     bve,l (rp),rp
  44:   50 3b 00 30     ldd 18(r1),dp


> The return address of the the function to which the caller of
> mcount() would return is passed to mcount() in %r26.  The saved value
> in the frame is not directly useful as one lacks the frame offset of
> the routine calling mcount.

What I want to archieve is to modify the return pointer, in order
to be able to track when the function returns to his caller.
The kernel ftracer uses this then to generate call stacks and to
time the function.
Looking at the above code, it should then be possible for me
to modify -10(r3), but is there a guarantee that it's always at
-10(r3) and that r3 is used?
That's the reason I asked if we could modify mcount to
give the address (in the stack) of the return pointer, but maybe
it's just overkill for this use case ?

Helge 
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On 2016-11-14 11:24 AM, Helge Deller wrote:
> On 14.11.2016 16:11, John David Anglin wrote:
>> On 2016-11-14 3:21 AM, Jeff Law wrote:
>>> On 11/13/2016 12:48 PM, Helge Deller wrote:
>>>> On 13.11.2016 19:56, Jeff Law wrote:
>>>>> On 11/13/2016 11:37 AM, Helge Deller wrote:
>>>>>> If you are going to change the ABI, maybe we can add more
>>>>>> things as well? Which comes to my mind here is for example an
>>>>>> optimized mcount() function which allows changing the return
>>>>>> pointer (see -mmcount-ra-address on MIPS) ?
>>>>> As in twiddling RP to return to a different point?
>>>> No, that's not the use case for me.
> I was wrong.
> It's actually the use case to modify the RP...
>
>>>> I was working on the ftrace functionality in the Linux kernel.
>>>> I'd need to look up the full details again, but as far as I
>>>> remember one of the tracers wants to know the function to which
>>>> the caller of mcount() would return, so some kind of simple
>>>> __builtin_return_address(2).
>>> Ah.  Isn't that going to be sitting at sp-20 or something like
>>> that.  My PA is rusty, but my recollection is that's supposed to be
>>> at a fixed location in the frame.
> Yes, sp-10.
It's sp-0x10 on 64-bit and sp-0x14 on 32-bit.
>
> 0000000000000000 <irq_to_desc>:
>     0:   08 03 02 41     copy r3,r1
>     4:   0f c2 12 c1     std rp,-10(sp)
>     8:   08 1e 02 43     copy sp,r3
>     c:   73 c1 00 a8     std,ma r1,50(sp)
>    10:   37 dd 00 20     ldo 10(sp),ret1
>    14:   0c 65 12 d0     std r5,8(r3)
>    18:   00 00 14 b9     mfia r25
>    1c:   db 45 0b e0     extrd,u,* r26,63,32,r5
>    20:   70 64 00 20     std r4,10(r3)
>    24:   08 02 02 5a     copy rp,r26
>    28:   37 39 3f d1     ldo -18(r25),r25
>    2c:   08 1b 02 44     copy dp,r4
>    30:   2b 60 00 00     addil L%0,dp,r1
>    34:   50 21 00 00     ldd 0(r1),r1
>    38:   0c 20 10 c1     ldd 0(r1),r1
>    3c:   50 22 00 20     ldd 10(r1),rp
>    40:   e8 40 f0 00     bve,l (rp),rp
>    44:   50 3b 00 30     ldd 18(r1),dp
>
>
>> The return address of the the function to which the caller of
>> mcount() would return is passed to mcount() in %r26.  The saved value
>> in the frame is not directly useful as one lacks the frame offset of
>> the routine calling mcount.
> What I want to archieve is to modify the return pointer, in order
> to be able to track when the function returns to his caller.
> The kernel ftracer uses this then to generate call stacks and to
> time the function.
> Looking at the above code, it should then be possible for me
> to modify -10(r3), but is there a guarantee that it's always at
> -10(r3) and that r3 is used?
The location for the for saving the return pointer is defined and always 
the same.

If routine is compiled with "-fno-omit-frame-pointer", there will always 
be a
frame pointer and it should be %r3.  Otherwise, there's no guarantee 
that the
frame pointer won't be eliminated.

Since the routine calls mcount, I believe the return pointer will be 
always be saved
and restored from the frame marker.  So, it should be possible the 
return address
on the stack to detect when the routine completes..

> That's the reason I asked if we could modify mcount to
> give the address (in the stack) of the return pointer, but maybe
> it's just overkill for this use case ?

If "-fno-omit-frame-pointer" works, then you have what you need.

Dave

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On 11/14/2016 09:24 AM, Helge Deller wrote:
> On 14.11.2016 16:11, John David Anglin wrote:
>> On 2016-11-14 3:21 AM, Jeff Law wrote:
>>> On 11/13/2016 12:48 PM, Helge Deller wrote:
>>>> On 13.11.2016 19:56, Jeff Law wrote:
>>>>> On 11/13/2016 11:37 AM, Helge Deller wrote:
>>>>>> If you are going to change the ABI, maybe we can add more
>>>>>> things as well? Which comes to my mind here is for example an
>>>>>> optimized mcount() function which allows changing the return
>>>>>> pointer (see -mmcount-ra-address on MIPS) ?
>>>>
>>>>> As in twiddling RP to return to a different point?
>>>>
>>>> No, that's not the use case for me.
>
> I was wrong.
> It's actually the use case to modify the RP...
>
>>>> I was working on the ftrace functionality in the Linux kernel.
>>>> I'd need to look up the full details again, but as far as I
>>>> remember one of the tracers wants to know the function to which
>>>> the caller of mcount() would return, so some kind of simple
>>>> __builtin_return_address(2).
>
>>> Ah.  Isn't that going to be sitting at sp-20 or something like
>>> that.  My PA is rusty, but my recollection is that's supposed to be
>>> at a fixed location in the frame.
>
> Yes, sp-10.
>
> 0000000000000000 <irq_to_desc>:
>    0:   08 03 02 41     copy r3,r1
>    4:   0f c2 12 c1     std rp,-10(sp)
>    8:   08 1e 02 43     copy sp,r3
>    c:   73 c1 00 a8     std,ma r1,50(sp)
>   10:   37 dd 00 20     ldo 10(sp),ret1
>   14:   0c 65 12 d0     std r5,8(r3)
>   18:   00 00 14 b9     mfia r25
>   1c:   db 45 0b e0     extrd,u,* r26,63,32,r5
>   20:   70 64 00 20     std r4,10(r3)
>   24:   08 02 02 5a     copy rp,r26
>   28:   37 39 3f d1     ldo -18(r25),r25
>   2c:   08 1b 02 44     copy dp,r4
>   30:   2b 60 00 00     addil L%0,dp,r1
>   34:   50 21 00 00     ldd 0(r1),r1
>   38:   0c 20 10 c1     ldd 0(r1),r1
>   3c:   50 22 00 20     ldd 10(r1),rp
>   40:   e8 40 f0 00     bve,l (rp),rp
>   44:   50 3b 00 30     ldd 18(r1),dp
>
>
>> The return address of the the function to which the caller of
>> mcount() would return is passed to mcount() in %r26.  The saved value
>> in the frame is not directly useful as one lacks the frame offset of
>> the routine calling mcount.
>
> What I want to archieve is to modify the return pointer, in order
> to be able to track when the function returns to his caller.
> The kernel ftracer uses this then to generate call stacks and to
> time the function.
> Looking at the above code, it should then be possible for me
> to modify -10(r3), but is there a guarantee that it's always at
> -10(r3) and that r3 is used?
I don't think you can depend on r3 (frame pointer).  But IIRC the save 
slot for the return address is fixed.  I think the problem you're going 
to run into is that the RP is saved into the frame allocated by the 
caller, then we adjust the SP for the current function.  So without 
knowing the size of the current function's frame, you're hosed.

Jeff

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On Mon, Nov 14, 2016 at 11:24 AM, Helge Deller <deller@gmx.de> wrote:
> What I want to archieve is to modify the return pointer, in order
> to be able to track when the function returns to his caller.
> The kernel ftracer uses this then to generate call stacks and to
> time the function.
> Looking at the above code, it should then be possible for me
> to modify -10(r3), but is there a guarantee that it's always at
> -10(r3) and that r3 is used?
> That's the reason I asked if we could modify mcount to
> give the address (in the stack) of the return pointer, but maybe
> it's just overkill for this use case ?

Why do you need to modify the value?

AFAICT ftrace uses these values heuristically e.g.
HAVE_FUNCTION_GRAPH_FP_TEST, HAVE_FUNCTION_GRAPH_RET_ADDR_PTR?

For example the only uses I see are in ftrace_pop_return_trace() and
they are purely heuristic.

Cheers,
Carlos.
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Hi Carlos,

On 14.11.2016 18:23, Carlos O'Donell wrote:
> On Mon, Nov 14, 2016 at 11:24 AM, Helge Deller <deller@gmx.de> wrote:
>> What I want to archieve is to modify the return pointer, in order
>> to be able to track when the function returns to his caller.
>> The kernel ftracer uses this then to generate call stacks and to
>> time the function.
>> Looking at the above code, it should then be possible for me
>> to modify -10(r3), but is there a guarantee that it's always at
>> -10(r3) and that r3 is used?
>> That's the reason I asked if we could modify mcount to
>> give the address (in the stack) of the return pointer, but maybe
>> it's just overkill for this use case ?
> 
> Why do you need to modify the value?
> 
> AFAICT ftrace uses these values heuristically e.g.
> HAVE_FUNCTION_GRAPH_FP_TEST, HAVE_FUNCTION_GRAPH_RET_ADDR_PTR?
> 
> For example the only uses I see are in ftrace_pop_return_trace() and
> they are purely heuristic.

Maybe I get you wrong, but do you suggest I don't need to implement
it because it's just heuristic ?
(I agree, it's not top priority, but nice to have nevertheless)

Helge

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From - Thu Nov 08 21:39:18 2018
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Hi Helge,

On 2016-11-15, at 1:30 PM, Helge Deller wrote:

> Hi Carlos,
> 
> On 14.11.2016 18:23, Carlos O'Donell wrote:
>> On Mon, Nov 14, 2016 at 11:24 AM, Helge Deller <deller@gmx.de> wrote:
>>> What I want to archieve is to modify the return pointer, in order
>>> to be able to track when the function returns to his caller.
>>> The kernel ftracer uses this then to generate call stacks and to
>>> time the function.
>>> Looking at the above code, it should then be possible for me
>>> to modify -10(r3), but is there a guarantee that it's always at
>>> -10(r3) and that r3 is used?
>>> That's the reason I asked if we could modify mcount to
>>> give the address (in the stack) of the return pointer, but maybe
>>> it's just overkill for this use case ?
>> 
>> Why do you need to modify the value?
>> 
>> AFAICT ftrace uses these values heuristically e.g.
>> HAVE_FUNCTION_GRAPH_FP_TEST, HAVE_FUNCTION_GRAPH_RET_ADDR_PTR?
>> 
>> For example the only uses I see are in ftrace_pop_return_trace() and
>> they are purely heuristic.
> 
> Maybe I get you wrong, but do you suggest I don't need to implement
> it because it's just heuristic ?
> (I agree, it's not top priority, but nice to have nevertheless)


Probably, Carlos is referring to glibc code.

Dave
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John David Anglin	dave.anglin@bell.net



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Subject: [PATCH] parisc: Fix printk continuations in system detection
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index 545f9d2..c9789d9 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -58,7 +58,7 @@ void __init setup_pdc(void)
 	status = pdc_system_map_find_mods(&module_result, &module_path, 0);
 	if (status == PDC_OK) {
 		pdc_type = PDC_TYPE_SYSTEM_MAP;
-		printk("System Map.\n");
+		pr_cont("System Map.\n");
 		return;
 	}
 
@@ -77,7 +77,7 @@ void __init setup_pdc(void)
 	status = pdc_pat_cell_get_number(&cell_info);
 	if (status == PDC_OK) {
 		pdc_type = PDC_TYPE_PAT;
-		printk("64 bit PAT.\n");
+		pr_cont("64 bit PAT.\n");
 		return;
 	}
 #endif
@@ -97,12 +97,12 @@ void __init setup_pdc(void)
 	case 0xC:		/* 715/64, at least */
 
 		pdc_type = PDC_TYPE_SNAKE;
-		printk("Snake.\n");
+		pr_cont("Snake.\n");
 		return;
 
 	default:		/* Everything else */
 
-		printk("Unsupported.\n");
+		pr_cont("Unsupported.\n");
 		panic("If this is a 64-bit machine, please try a 64-bit kernel.\n");
 	}
 }
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On Tue, Nov 15, 2016 at 7:04 PM, John David Anglin <dave.anglin@bell.net> wrote:
> Hi Helge,
>
> On 2016-11-15, at 1:30 PM, Helge Deller wrote:
>
>> Hi Carlos,
>>
>> On 14.11.2016 18:23, Carlos O'Donell wrote:
>>> On Mon, Nov 14, 2016 at 11:24 AM, Helge Deller <deller@gmx.de> wrote:
>>>> What I want to archieve is to modify the return pointer, in order
>>>> to be able to track when the function returns to his caller.
>>>> The kernel ftracer uses this then to generate call stacks and to
>>>> time the function.
>>>> Looking at the above code, it should then be possible for me
>>>> to modify -10(r3), but is there a guarantee that it's always at
>>>> -10(r3) and that r3 is used?
>>>> That's the reason I asked if we could modify mcount to
>>>> give the address (in the stack) of the return pointer, but maybe
>>>> it's just overkill for this use case ?
>>>
>>> Why do you need to modify the value?
>>>
>>> AFAICT ftrace uses these values heuristically e.g.
>>> HAVE_FUNCTION_GRAPH_FP_TEST, HAVE_FUNCTION_GRAPH_RET_ADDR_PTR?
>>>
>>> For example the only uses I see are in ftrace_pop_return_trace() and
>>> they are purely heuristic.
>>
>> Maybe I get you wrong, but do you suggest I don't need to implement
>> it because it's just heuristic ?
>> (I agree, it's not top priority, but nice to have nevertheless)
>
>
> Probably, Carlos is referring to glibc code.

No, I'm referring to linux kernel code, there is no ftrace in glibc.

The above two conditionals in the kernel are only heuristic checks to
terminate ftrace unwinds with errors.

You need not implement them to have ftrace working.

kernel/trace/trace_functions_graph.c

 173 #ifdef HAVE_FUNCTION_GRAPH_FP_TEST
 174         current->ret_stack[index].fp = frame_pointer;
 175 #endif
 176 #ifdef HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
 177         current->ret_stack[index].retp = retp;
 178 #endif


 211 #ifdef HAVE_FUNCTION_GRAPH_FP_TEST
 212         /*
 213          * The arch may choose to record the frame pointer used
 214          * and check it here to make sure that it is what we expect it
 215          * to be. If gcc does not set the place holder of the return
 216          * address in the frame pointer, and does a copy instead, then
 217          * the function graph trace will fail. This test detects this
 218          * case.
 219          *
 220          * Currently, x86_32 with optimize for size (-Os) makes the latest
 221          * gcc do the above.
 222          *
 223          * Note, -mfentry does not use frame pointers, and this test
 224          *  is not needed if CC_USING_FENTRY is set.
 225          */
 226         if (unlikely(current->ret_stack[index].fp != frame_pointer)) {
 227                 ftrace_graph_stop();
 228                 WARN(1, "Bad frame pointer: expected %lx, received %lx\n"
 229                      "  from func %ps return to %lx\n",
 230                      current->ret_stack[index].fp,
 231                      frame_pointer,
 232                      (void *)current->ret_stack[index].func,
 233                      current->ret_stack[index].ret);
 234                 *ret = (unsigned long)panic;
 235                 return;
 236         }
 237 #endif

 286 /**
 287  * ftrace_graph_ret_addr - convert a potentially modified stack
return address
 288  *                         to its original value
 289  *
 290  * This function can be called by stack unwinding code to convert
a found stack
 291  * return address ('ret') to its original value, in case the function graph
 292  * tracer has modified it to be 'return_to_handler'.  If the address hasn't
 293  * been modified, the unchanged value of 'ret' is returned.
 294  *
 295  * 'idx' is a state variable which should be initialized by the
caller to zero
 296  * before the first call.
 297  *
 298  * 'retp' is a pointer to the return address on the stack.  It's ignored if
 299  * the arch doesn't have HAVE_FUNCTION_GRAPH_RET_ADDR_PTR defined.
 300  */
 301 #ifdef HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
...
 317         for (i = 0; i <= index; i++)
 318                 if (task->ret_stack[i].retp == retp)
 319                         return task->ret_stack[i].ret;
 320
 321         return ret;
 322 }
 323 #else /* !HAVE_FUNCTION_GRAPH_RET_ADDR_PTR */

So you see the FP is used for heuristics to terminate a trace.

In the case of RP, I expect you should always have access to
save/restore RP from the sp-10 slot and that should be enough?

Cheers,
Carlos.
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Enhance CPU detection code on PAT machines
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This patch fixes the debug code which runs during the inventory scan on
machines with PAT firmware.

Additionally print out the relationship between the detected logical CPU
number and it's physical location and physical cpu number.
This leads to information which can be used to feed numa-structures in
the kernel in later patches. An example output is from my single-CPU (2
cores) C8000 machine is:

  Logical CPU #0 is physical cpu #0 at 0xffff0000ffff15, hpa 0xfffffffffe780000
  Logical CPU #1 is physical cpu #1 at 0xffff0000ffff15, hpa 0xfffffffffe781000

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pdcpat.h b/arch/parisc/include/asm/pdcpat.h
index 47539f1..e1d2890 100644
--- a/arch/parisc/include/asm/pdcpat.h
+++ b/arch/parisc/include/asm/pdcpat.h
@@ -289,7 +289,7 @@ extern int pdc_pat_cell_get_number(struct pdc_pat_cell_num *cell_info);
 extern int pdc_pat_cell_module(unsigned long *actcnt, unsigned long ploc, unsigned long mod, unsigned long view_type, void *mem_addr);
 extern int pdc_pat_cell_num_to_loc(void *, unsigned long);
 
-extern int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, void *hpa);
+extern int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, unsigned long hpa);
 
 extern int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr, unsigned long count, unsigned long offset);
 
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index e5d7190..9d797ae 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1258,7 +1258,7 @@ int pdc_pat_cell_module(unsigned long *actcnt, unsigned long ploc, unsigned long
  *
  * Retrieve the cpu number for the cpu at the specified HPA.
  */
-int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, void *hpa)
+int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, unsigned long hpa)
 {
 	int retval;
 	unsigned long flags;
diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index 545f9d2..c9789d9 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -216,9 +216,9 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 	register_parisc_device(dev);	/* advertise device */
 
 #ifdef DEBUG_PAT
-	pdc_pat_cell_mod_maddr_block_t io_pdc_cell;
 	/* dump what we see so far... */
 	switch (PAT_GET_ENTITY(dev->mod_info)) {
+		pdc_pat_cell_mod_maddr_block_t io_pdc_cell;
 		unsigned long i;
 
 	case PAT_ENTITY_PROC:
@@ -259,9 +259,9 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 				pa_pdc_cell->mod[4 + i * 3]);	/* finish (ie end) */
 			printk(KERN_DEBUG 
 				"  IO_VIEW %ld: 0x%016lx 0x%016lx 0x%016lx\n", 
-				i, io_pdc_cell->mod[2 + i * 3],	/* type */
-				io_pdc_cell->mod[3 + i * 3],	/* start */
-				io_pdc_cell->mod[4 + i * 3]);	/* finish (ie end) */
+				i, io_pdc_cell.mod[2 + i * 3],	/* type */
+				io_pdc_cell.mod[3 + i * 3],	/* start */
+				io_pdc_cell.mod[4 + i * 3]);	/* finish (ie end) */
 		}
 		printk(KERN_DEBUG "\n");
 		break;
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 0c2a94a..12cdec5 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -99,6 +99,7 @@ static int processor_probe(struct parisc_device *dev)
 	unsigned long txn_addr;
 	unsigned long cpuid;
 	struct cpuinfo_parisc *p;
+	struct pdc_pat_cpu_num cpu_info __maybe_unused;
 
 #ifdef CONFIG_SMP
 	if (num_online_cpus() >= nr_cpu_ids) {
@@ -123,10 +124,6 @@ static int processor_probe(struct parisc_device *dev)
 		ulong status;
 		unsigned long bytecnt;
 	        pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;
-#undef USE_PAT_CPUID
-#ifdef USE_PAT_CPUID
-		struct pdc_pat_cpu_num cpu_info;
-#endif
 
 		pa_pdc_cell = kmalloc(sizeof (*pa_pdc_cell), GFP_KERNEL);
 		if (!pa_pdc_cell)
@@ -145,22 +142,25 @@ static int processor_probe(struct parisc_device *dev)
 
 		kfree(pa_pdc_cell);
 
+		/* get the cpu number */
+		status = pdc_pat_cpu_get_number(&cpu_info, dev->hpa.start);
+		BUG_ON(PDC_OK != status);
+
+		pr_info("Logical CPU #%lu is physical cpu #%lu at 0x%lx, hpa %pa\n",
+			cpuid, cpu_info.cpu_num, cpu_info.cpu_loc, &dev->hpa.start);
+
+#undef USE_PAT_CPUID
 #ifdef USE_PAT_CPUID
 /* We need contiguous numbers for cpuid. Firmware's notion
  * of cpuid is for physical CPUs and we just don't care yet.
  * We'll care when we need to query PAT PDC about a CPU *after*
  * boot time (ie shutdown a CPU from an OS perspective).
  */
-		/* get the cpu number */
-		status = pdc_pat_cpu_get_number(&cpu_info, dev->hpa.start);
-
-		BUG_ON(PDC_OK != status);

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.scsi,gmane.linux.ports.parisc
Subject: [PATCH] mptfusion: Fix printk continuations
Date: Thu, 17 Nov 2016 21:46:20 +0100
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Fix the printk continuations when running the mptfusion driver.
This patch brings the capabilities into one single syslog line again:
   mptbase: ioc1: Initiating bringup
   ioc1: LSI53C1030 B2: Capabilities={Initiator,Target}
   scsi host3: ioc1: LSI53C1030 B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=67

Tested on a parisc C8000 machine.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 89c7ed1..fae96a2 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -2868,21 +2868,21 @@ MptDisplayIocCapabilities(MPT_ADAPTER *ioc)
 
 	printk(KERN_INFO "%s: ", ioc->name);
 	if (ioc->prod_name)
-		printk("%s: ", ioc->prod_name);
-	printk("Capabilities={");
+		pr_cont("%s: ", ioc->prod_name);
+	pr_cont("Capabilities={");
 
 	if (ioc->pfacts[0].ProtocolFlags & MPI_PORTFACTS_PROTOCOL_INITIATOR) {
-		printk("Initiator");
+		pr_cont("Initiator");
 		i++;
 	}
 
 	if (ioc->pfacts[0].ProtocolFlags & MPI_PORTFACTS_PROTOCOL_TARGET) {
-		printk("%sTarget", i ? "," : "");
+		pr_cont("%sTarget", i ? "," : "");
 		i++;
 	}
 
 	if (ioc->pfacts[0].ProtocolFlags & MPI_PORTFACTS_PROTOCOL_LAN) {
-		printk("%sLAN", i ? "," : "");
+		pr_cont("%sLAN", i ? "," : "");
 		i++;
 	}
 
@@ -2891,12 +2891,12 @@ MptDisplayIocCapabilities(MPT_ADAPTER *ioc)
 	 *  This would probably evoke more questions than it's worth
 	 */
 	if (ioc->pfacts[0].ProtocolFlags & MPI_PORTFACTS_PROTOCOL_TARGET) {
-		printk("%sLogBusAddr", i ? "," : "");
+		pr_cont("%sLogBusAddr", i ? "," : "");
 		i++;
 	}
 #endif
 
-	printk("}\n");
+	pr_cont("}\n");
 }
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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Subject: Re: [PATCH] mptfusion: Fix printk continuations
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>>>>> "Helge" == Helge Deller <deller@gmx.de> writes:

Helge> Fix the printk continuations when running the mptfusion driver.
Helge> This patch brings the capabilities into one single syslog line
Helge> again:
Helge>    mptbase: ioc1: Initiating bringup ioc1: LSI53C1030 B2:
Helge>    Capabilities={Initiator,Target} scsi host3: ioc1: LSI53C1030
Helge>    B2, FwRev=01032341h, Ports=1, MaxQ=255, IRQ=67

Applied to 4.10/scsi-queue.

-- 
Martin K. Petersen	Oracle Linux Engineering
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From - Thu Nov 08 21:39:19 2018
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Subject: [PATCH] parisc: Start processors from a known state and fix races in parisc_setup_cache_timing
Date: Sun, 20 Nov 2016 21:12:36 -0500
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Helge reported to me the following startup crash:

[    0.000000] Linux version 4.8.0-1-parisc64-smp =
(debian-kernel@lists.debian.org) (gcc version 5.4.1 20161019 (GCC) ) #1 =
SMP Debian 4.8.7-1 (2016-11-13)
[    0.000000] unwind_init: start =3D 0x40d5b5a0, end =3D 0x40db0740, =
entries =3D 21786
[    0.000000] FP[0] enabled: Rev 1 Model 16
[    0.000000] The 64-bit Kernel has started...
[    0.000000] Kernel default page size is 4 KB. Huge pages enabled with =
1 MB physical and 2 MB virtual size.
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: System Map.
[    0.000000] model 00005bd0 00000491 00000000 00000002 782482ee =
100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000203
[    0.000000] CPUID vers 17 rev 7 (0x00000227)
[    0.000000] capabilities 0x3
[    0.000000] model 9000/785/J5000
[    0.000000] Total Memory: 2048 MB
[    0.000000] initrd: 7eace000-7ffeda26
[    0.000000] initrd: reserving 3eace000-3ffeda26 (mem_max 80000000)
[    0.000000] LCD display at fffffff0f05d0008,fffffff0f05d0000 =
registered
[    0.000000] percpu: Embedded 19 pages/cpu @0000000043417000 s39216 =
r8192 d30416 u77824
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  =
Total pages: 516096
[    0.000000] Kernel command line: root=3D/dev/sda3 rootfstype=3Dext4 =
HOME=3D/ panic=3D-1 console=3DttyS0 TERM=3Dvt102 palo_kernel=3D2/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 262144 (order: 9, =
2097152 bytes)
[    0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 =
bytes)
[    0.000000] Memory: 2018528K/2097152K available (9272K kernel code, =
3053K rwdata, 1319K rodata, 1024K init, 840K bss, 78624K reserved, 0K =
cma-reserved)
[    0.000000] virtual kernel memory layout:
   0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   =
(1007 MB)
   0.000000]     memory  : 0x0000000040000000 - 0x00000000c0000000   =
(2048 MB)
   0.000000]       .init : 0x0000000040100000 - 0x0000000040200000   =
(1024 kB)
   0.000000]       .data : 0x0000000040b0e000 - 0x0000000040f533e0   =
(4372 kB)
   0.000000]       .text : 0x0000000040200000 - 0x0000000040b0e000   =
(9272 kB)
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  Build-time adjustment of leaf fanout to 64.
[    0.000000] NR_IRQS:128
[    0.000000] clocksource: cr16: mask: 0xffffffffffffffff max_cycles: =
0x657a3c2da0, max_idle_ns: 440795224593 ns
[    0.000000] Console: colour dummy device 160x64
[    0.196000] Calibrating delay loop... 872.44 BogoMIPS (lpj=3D1744896)
[    0.264032] pid_max: default: 32768 minimum: 301
[    0.297351] Security Framework initialized
[    0.360039] Yama: disabled by default; enable with sysctl =
kernel.yama.*
[    0.412087] AppArmor: AppArmor disabled by boot time parameter
[    0.500468] Mount-cache hash table entries: 4096 (order: 3, 32768 =
bytes)
[    0.576040] Mountpoint-cache hash table entries: 4096 (order: 3, =
32768 bytes)
[    0.768910] Brought up 1 CPUs
[    0.811305] devtmpfs: initialized
[    0.861977] clocksource: jiffies: mask: 0xffffffff max_cycles: =
0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.992465] NET: Registered protocol family 16
[    1.052962 <tel:1052962>] EISA bus registered
[    1.056311 <tel:1056311>] Searching for devices...
[    1.388031 <tel:1388031>] Found devices:
[    1.392053] 1 <tel:13920531>. Astro BC Runway Port at =
0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
[    1.532048] 2 <tel:15320482>. Elroy PCI Bridge at 0xfffffffffed30000 =
[10/0] { 13, 0x0, 0x782, 0x0000a }
[    1.538406] 3 <tel:15384063>. Elroy PCI Bridge at 0xfffffffffed32000 =
[10/1] { 13, 0x0, 0x782, 0x0000a }
[    1.744052] 4 <tel:17440524>. Elroy PCI Bridge at 0xfffffffffed34000 =
[10/2] { 13, 0x0, 0x782, 0x0000a }
[    1.852052] 5 <tel:18520525>. Elroy PCI Bridge at 0xfffffffffed38000 =
[10/4] { 13, 0x0, 0x782, 0x0000a }
[    1.858406] 6 <tel:18584066>. Elroy PCI Bridge at 0xfffffffffed3c000 =
[10/6] { 13, 0x0, 0x782, 0x0000a }
[    2.064047] 7. Forte W 2-way at 0xfffffffffffa0000 [32] { 0, 0x0, =
0x5bd, 0x00004 }
[    2.164047] 8. Forte W 2-way at 0xfffffffffffa2000 [34] { 0, 0x0, =
0x5bd, 0x00004 }
[    2.264046] 9. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x088, =
0x00009 }
[    2.356040] Enabling regular chassis codes support v0.05
[    2.429981] Releasing cpu 1 now, hpa=3Dfffffffffffa2000
[    2.635751] CPU(s): 2 out of 2 PA8500 (PCX-W) at 440.000000 MHz =
online
[    2.726692] Setting cache flush threshold to 1024 kB
[    2.729932] Not-handled unaligned insn 0x43ffff80
[    2.798114] Setting TLB flush threshold to 140 kB
[    2.928039] Unaligned handler failed, ret =3D -1
[    3.000419]       _______________________________=20
   3.000419]      < Your System ate a SPARC! Gah! >
   3.000419]       -------------------------------=20
   3.000419]              \   ^__^
   3.000419]                  (__)\       )\/\
   3.000419]                   U  ||----w |
   3.000419]                      ||     ||
[    3.000000] SBA found Astro 2.1 at 0xfffffffffed00000
[    3.408041] random: fast init done
[    3.457713] Elroy version TR2.1 (0x2) found at 0xfffffffffed30000
[    3.584425] swapper/1 (pid 0): Unaligned data reference (code 28)
[    3.583874] LBA 10:0: PCI host bridge to bus 0000:00
[    3.583907] pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
[    3.583939] pci_bus 0000:00: root bus resource [mem =
0xfffffffff4000000-0xfffffffff47fffff] (bus address =
[0xf4000000-0xf47fffff])
[    3.583967] pci_bus 0000:00: root bus resource [bus 00]
[    3.584316] pci 0000:00:0c.0: [1011:0019] type 00 class 0x020000
[    3.584466] pci 0000:00:0c.0: reg 0x10: [io  0x1000-0x107f]
[    3.584558] pci 0000:00:0c.0: reg 0x14: [mem =
0xfffffffff4008000-0xfffffffff40083ff]
[    3.584924] pci 0000:00:0c.0: reg 0x30: [mem =
0xfffffffff4040000-0xfffffffff407ffff pref]
[    3.585597] pci 0000:00:0d.0: [11d4:1889] type 00 class 0x040100
[    3.585752] pci 0000:00:0d.0: reg 0x10: [mem =
0xfffffffff400c000-0xfffffffff400c1ff pref]
[    3.585844] pci 0000:00:0d.0: reg 0x14: [mem =
0xfffffffff400b000-0xfffffffff400b00f pref]
[    3.585936] pci 0000:00:0d.0: reg 0x18: [mem =
0xfffffffff400a000-0xfffffffff400a00f pref]
[    3.586027] pci 0000:00:0d.0: reg 0x1c: [mem =
0xfffffffff4009000-0xfffffffff400900f pref]
[    3.586525] pci 0000:00:0d.0: supports D2
[    3.587048] pci 0000:00:0e.0: [100b:0002] type 00 class 0x01018a
[    3.587099] PCI: Enabled native mode for NS87415 (pif=3D0x8f)
[    3.587205] pci 0000:00:0e.0: reg 0x10: [io  0x0f00-0x0f07]
[    3.587299] pci 0000:00:0e.0: reg 0x14: [io  0x0e00-0x0e03]
[    3.587391] pci 0000:00:0e.0: reg 0x18: [io  0x0d00-0x0d07]
[    3.587484] pci 0000:00:0e.0: reg 0x1c: [io  0x0b00-0x0b03]
[    3.587577] pci 0000:00:0e.0: reg 0x20: [io  0x0a00-0x0a0f]
[    3.588427] pci 0000:00:0e.1: [100b:000e] type 00 class 0x068000
[    3.589556] pci 0000:00:0e.2: [100b:0012] type 00 class 0x0c0310
[    3.589689] pci 0000:00:0e.2: reg 0x10: [mem =
0xfffffffff4007000-0xfffffffff4007fff]
[    3.589782] pci 0000:00:0e.2: reg 0x14: [mem =
0xfffffffff4006000-0xfffffffff4006fff]
[    3.590826] pci 0000:00:0f.0: [1000:000b] type 00 class 0x010000
[    3.590982] pci 0000:00:0f.0: reg 0x10: [io  0x0900-0x09ff]
[    3.591116] pci 0000:00:0f.0: reg 0x14: [mem =
0xfffffffff4005000-0xfffffffff40053ff 64bit]
[    3.591247] pci 0000:00:0f.0: reg 0x1c: [mem =
0xfffffffff4002000-0xfffffffff4003fff 64bit]
[    3.591672] pci 0000:00:0f.0: supports D1 D2
[    3.592344] pci 0000:00:0f.1: [1000:000b] type 00 class 0x010000
[    3.592499] pci 0000:00:0f.1: reg 0x10: [io  0x0800-0x08ff]
[    3.592632] pci 0000:00:0f.1: reg 0x14: [mem =
0xfffffffff4004000-0xfffffffff40043ff 64bit]
[    3.592762] pci 0000:00:0f.1: reg 0x1c: [mem =
0xfffffffff4000000-0xfffffffff4001fff 64bit]
[    3.593189] pci 0000:00:0f.1: supports D1 D2
[    3.663990] Elroy version TR2.1 (0x2) found at 0xfffffffffed32000
[    3.664613] LBA 10:1: PCI host bridge to bus 0000:01
[    3.664650] pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] =
(bus address [0x2000-0x3fff])
[    3.664680] pci_bus 0000:01: root bus resource [mem =
0xfffffffff4800000-0xfffffffff4ffffff] (bus address =
[0xf4800000-0xf4ffffff])
[    3.664707] pci_bus 0000:01: root bus resource [bus 01]
[    3.729673] Elroy version TR2.1 (0x2) found at 0xfffffffffed34000
[    3.730152] LBA 10:2: PCI host bridge to bus 0000:02
[    3.730189] pci_bus 0000:02: root bus resource [io  0x24000-0x25fff] =
(bus address [0x4000-0x5fff])
[    3.730219] pci_bus 0000:02: root bus resource [mem =
0xfffffffff5000000-0xfffffffff57fffff] (bus address =
[0xf5000000-0xf57fffff])
[    3.730247] pci_bus 0000:02: root bus resource [bus 02]
[    3.811431] Elroy version TR2.1 (0x2) found at 0xfffffffffed38000
[    3.811912] LBA 10:4: PCI host bridge to bus 0000:03
[    3.811949] pci_bus 0000:03: root bus resource [io  0x38000-0x39fff] =
(bus address [0x8000-0x9fff])
[    3.811979] pci_bus 0000:03: root bus resource [mem =
0xfffffffff6000000-0xfffffffff67fffff] (bus address =
[0xf6000000-0xf67fffff])
[    3.812083] pci_bus 0000:03: root bus resource [bus 03]
[    3.964113] Elroy version TR2.1 (0x2) found at 0xfffffffffed3c000
[    3.964644] LBA 10:6: PCI host bridge to bus 0000:04
[    3.964681] pci_bus 0000:04: root bus resource [io  0x4c000-0x4dfff] =
(bus address [0xc000-0xdfff])
[    3.964711] pci_bus 0000:04: root bus resource [mem =
0xfffffffffa000000-0xfffffffffbffffff] (bus address =
[0xfa000000-0xfbffffff])
[    3.964740] pci_bus 0000:04: root bus resource [mem =
0xfffffffff7000000-0xfffffffff77fffff] (bus address =
[0xf7000000-0xf77fffff])
[    3.964769] pci_bus 0000:04: root bus resource [bus 04]
[    3.964963] pci 0000:04:07.0: [103c:1005] type 00 class 0x038000
[    3.965090] pci 0000:04:07.0: reg 0x10: [mem =
0xfffffffffa000000-0xfffffffffbffffff]
[    3.965475] pci 0000:04:07.0: reg 0x30: [mem =
0xfffffffff7000000-0xfffffffff700ffff pref]
[    3.966316] iosapic: hpa not registered for 0000:04:07.0
[    4.116034] powersw: Soft power switch at 0xfffffff0f0400804 enabled.
[    4.329553] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[    4.907795] vgaarb: loaded
[    9.340055] CPU: 1 PID: 0 Comm: swapper/1 Not tainted =
4.8.0-1-parisc64-smp #1 Debian 4.8.7-1
[    9.448082] task: 00000000bfd48060 task.stack: 00000000bfd50000
[    9.528040]=20
[    9.548022]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[    9.608027] PSW: 00001000000001001111111100000000 Not tainted
[    9.684066] r00-03  000000ff0804ff00 0000000040bbc4c0 =
000000004025d178 00000000bfd50160
[    9.788086] r04-07  0000000040b9ecc0 00000000bfd50210 =
0000000040e1f248 0000000000000002
[    9.896052] r08-11  0000000000000000 0000000000000001 =
0000000040f533d0 0000000040e1f248
[   10.000034] r12-15  0000000040e1f2dc 0000000000000001 =
0000000000000001 0000000040eaa682
[   10.104053] r16-19  00000000bfd50580 0000000000000002 =
fffffff0f000016c 00000000bfd50000
[   10.212034] r20-23  000000004342e440 000000000800000e =
0000000000000009 0000000000000032
[   10.316078] r24-27  0000000000000000 000000000f9f009c =
00000000402fe8a8 0000000000000000
[   10.420052] r28-31  0000000000000000 00000000bfd50550 =
00000000bfd50580 0000000040f533d0
[   10.528034] sr00-03  0000000000000000 0000000000000000 =
0000000000000000 0000000000000000
[   10.632083] sr04-07  0000000000000000 0000000000000000 =
0000000000000000 0000000000000000
[   10.740042]=20
[   10.760029] IASQ: 0000000000000000 0000000000000000 IAOQ: =
000000004025d154 000000004025d158
[   10.868052]  IIR: 43ffff80    ISR: 0000000000340000  IOR: =
000001ff54150960
[   10.960029]  CPU:        1   CR30: 00000000bfd50000 CR31: =
0000000011111111
[   11.052057]  ORIG_R28: 000000004021e3b4
[   11.100045]  IAOQ[0]: irq_exit+0x94/0x120
[   11.152062]  IAOQ[1]: irq_exit+0x98/0x120
[   11.208031]  RP(r2): irq_exit+0xb8/0x120
[   11.256074] Backtrace:
[   11.288067]  [<00000000402cd944>] cpu_startup_entry+0x1e4/0x598
[   11.368058]  [<0000000040109528>] smp_callin+0x2c0/0x2f0
[   11.436308]  [<00000000402b53fc>] update_curr+0x18c/0x2d0
[   11.508055]  [<00000000402b73b8>] dequeue_entity+0x2c0/0x1030
[   11.584040]  [<00000000402b3cc0>] set_next_entity+0x80/0xd30
[   11.660069]  [<00000000402c1594>] pick_next_task_fair+0x614/0x720
[   11.740085]  [<000000004020dd34>] __schedule+0x394/0xa60
[   11.808054]  [<000000004020e488>] schedule+0x88/0x118
[   11.876039]  [<0000000040283d3c>] rescuer_thread+0x4d4/0x5b0
[   11.948090]  [<000000004028fc4c>] kthread+0x1ec/0x248
[   12.016053]  [<0000000040205020>] end_fault_vector+0x20/0xc0
[   12.092239]  [<00000000402050c0>] _switch_to_ret+0x0/0xf40
[   12.164044]=20
[   12.184036] CPU: 1 PID: 0 Comm: swapper/1 Not tainted =
4.8.0-1-parisc64-smp #1 Debian 4.8.7-1
[   12.244040] Backtrace:
[   12.244040]  [<000000004021c480>] show_stack+0x68/0x80
[   12.244040]  [<00000000406f332c>] dump_stack+0xec/0x168
[   12.244040]  [<000000004021c74c>] die_if_kernel+0x25c/0x430
[   12.244040]  [<000000004022d320>] handle_unaligned+0xb48/0xb50
[   12.244040]=20
[   12.632066] ---[ end trace 9ca05a7215c7bbb2 ]---
[   12.692036] Kernel panic - not syncing: Attempted to kill the idle =
task!

We have the insn 0x43ffff80 in IIR but from IAOQ we should have:
   4025d150:   0f f3 20 df     ldd,s r19(r31),r31
   4025d154:   0f 9f 00 9c     ldw r31(ret0),ret0
   4025d158:   bf 80 20 58     cmpb,*<> r0,ret0,4025d18c <irq_exit+0xcc>

Cpu0 has just completed running parisc_setup_cache_timing:

[    2.429981] Releasing cpu 1 now, hpa=3Dfffffffffffa2000
[    2.635751] CPU(s): 2 out of 2 PA8500 (PCX-W) at 440.000000 MHz =
online
[    2.726692] Setting cache flush threshold to 1024 kB
[    2.729932] Not-handled unaligned insn 0x43ffff80
[    2.798114] Setting TLB flush threshold to 140 kB
[    2.928039] Unaligned handler failed, ret =3D -1

=46rom the backtrace, cpu1 is in smp_callin:

void __init smp_callin(void)
{
       int slave_id =3D cpu_now_booting;

       smp_cpu_init(slave_id);
       preempt_disable();

       flush_cache_all_local(); /* start with known state */
       flush_tlb_all_local(NULL);

       local_irq_enable();  /* Interrupts have been off until now */

       cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);

So, it has just flushed its caches and the TLB.   It would seem either =
the flushes in parisc_setup_cache_timing
or smp_callin have corrupted kernel memory.

The attached patch reworks parisc_setup_cache_timing to remove the races =
in setting the cache and TLB
flush thresholds.  It also corrects the number of bytes flushed in the =
TLB calculation.

The patch flushes the cache and TLB on cpu0 before starting the =
secondary processors so that they are
are started from a known state.

Tested with a few reboots on c8000.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>



--Apple-Mail-55-1023466952
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diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 6700127..bf669a2 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -369,6 +369,7 @@ void __init parisc_setup_cache_timing(void)
 {
 	unsigned long rangetime, alltime;
 	unsigned long size, start;
+	unsigned long threshold;
=20
 	alltime =3D mfctl(16);
 	flush_data_cache();
@@ -382,17 +383,12 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_DEBUG "Whole cache flush %lu cycles, flushing %lu =
bytes %lu cycles\n",
 		alltime, size, rangetime);
=20
-	/* Racy, but if we see an intermediate value, it's ok too... */
-	parisc_cache_flush_threshold =3D size * alltime / rangetime;
-
-	parisc_cache_flush_threshold =3D =
L1_CACHE_ALIGN(parisc_cache_flush_threshold);
-	if (!parisc_cache_flush_threshold)
-		parisc_cache_flush_threshold =3D FLUSH_THRESHOLD;
-
-	if (parisc_cache_flush_threshold > cache_info.dc_size)
-		parisc_cache_flush_threshold =3D cache_info.dc_size;
-
-	printk(KERN_INFO "Setting cache flush threshold to %lu kB\n",
+	threshold =3D L1_CACHE_ALIGN(size * alltime / rangetime);
+	if (threshold > cache_info.dc_size)
+		threshold =3D cache_info.dc_size;
+	if (threshold)
+		parisc_cache_flush_threshold =3D threshold;
+	printk(KERN_INFO "Cache flush threshold set to %lu kB\n",
 		parisc_cache_flush_threshold/1024);
=20
 	/* calculate TLB flush threshold */
@@ -401,7 +397,7 @@ void __init parisc_setup_cache_timing(void)
 	flush_tlb_all();
 	alltime =3D mfctl(16) - alltime;
=20
-	size =3D PAGE_SIZE;
+	size =3D 0;
 	start =3D (unsigned long) _text;
 	rangetime =3D mfctl(16);
 	while (start < (unsigned long) _end) {
@@ -414,13 +410,10 @@ void __init parisc_setup_cache_timing(void)
 	printk(KERN_DEBUG "Whole TLB flush %lu cycles, flushing %lu =
bytes %lu cycles\n",
 		alltime, size, rangetime);
=20
-	parisc_tlb_flush_threshold =3D size * alltime / rangetime;
-	parisc_tlb_flush_threshold *=3D num_online_cpus();
-	parisc_tlb_flush_threshold =3D =
PAGE_ALIGN(parisc_tlb_flush_threshold);
-	if (!parisc_tlb_flush_threshold)
-		parisc_tlb_flush_threshold =3D FLUSH_TLB_THRESHOLD;
-
-	printk(KERN_INFO "Setting TLB flush threshold to %lu kB\n",
+	threshold =3D PAGE_ALIGN(num_online_cpus() * size * alltime / =
rangetime);
+	if (threshold)
+		parisc_tlb_flush_threshold =3D threshold;
+	printk(KERN_INFO "TLB flush threshold set to %lu kB\n",
 		parisc_tlb_flush_threshold/1024);
 }
=20
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 81d6f63..2e66a88 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -334,6 +334,10 @@ static int __init parisc_init(void)
 	/* tell PDC we're Linux. Nevermind failure. */
 	pdc_stable_write(0x40, &osid, sizeof(osid));
 =09
+	/* start with known state */
+	flush_cache_all_local();
+	flush_tlb_all_local(NULL);
+
 	processor_init();
 #ifdef CONFIG_SMP
 	pr_info("CPU(s): %d out of %d %s at %d.%06d MHz online\n",

--Apple-Mail-55-1023466952
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--
John David Anglin	dave.anglin@bell.net

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Subject: [hp-parisc:pdt_devel 5/5] arch/parisc/kernel/inventory.c:283:1:
 warning: the frame size of 4104 bytes is larger than 2048 bytes
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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git pdt_devel
head:   9d2a99a3e6a35e064c82e639dbbe65f1a4fc9b09
commit: 9d2a99a3e6a35e064c82e639dbbe65f1a4fc9b09 [5/5] parisc: Add page deallocation support
config: parisc-generic-64bit_defconfig (attached as .config)
compiler: hppa64-linux-gnu-gcc (GCC) 6.2.0 20160901
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 9d2a99a3e6a35e064c82e639dbbe65f1a4fc9b09
        # save the attached .config to linux build tree
        make.cross ARCH=parisc 

All warnings (new ones prefixed by >>):

   arch/parisc/kernel/inventory.c: In function 'pat_query_module':
>> arch/parisc/kernel/inventory.c:283:1: warning: the frame size of 4104 bytes is larger than 2048 bytes [-Wframe-larger-than=]
    }
    ^

vim +283 arch/parisc/kernel/inventory.c

0d56d1aa Kyle McMartin  2009-06-23  267  				pa_pdc_cell->mod[3 + i * 3],	/* start */
0d56d1aa Kyle McMartin  2009-06-23  268  				pa_pdc_cell->mod[4 + i * 3]);	/* finish (ie end) */
^1da177e Linus Torvalds 2005-04-16  269  			printk(KERN_DEBUG 
^1da177e Linus Torvalds 2005-04-16  270  				"  IO_VIEW %ld: 0x%016lx 0x%016lx 0x%016lx\n", 
fa465a6a Helge Deller   2016-11-17  271  				i, io_pdc_cell.mod[2 + i * 3],	/* type */
fa465a6a Helge Deller   2016-11-17  272  				io_pdc_cell.mod[3 + i * 3],	/* start */
fa465a6a Helge Deller   2016-11-17  273  				io_pdc_cell.mod[4 + i * 3]);	/* finish (ie end) */
^1da177e Linus Torvalds 2005-04-16  274  		}
^1da177e Linus Torvalds 2005-04-16  275  		printk(KERN_DEBUG "\n");
^1da177e Linus Torvalds 2005-04-16  276  		break;
^1da177e Linus Torvalds 2005-04-16  277  	}
^1da177e Linus Torvalds 2005-04-16  278  #endif /* DEBUG_PAT */
0d56d1aa Kyle McMartin  2009-06-23  279  
0d56d1aa Kyle McMartin  2009-06-23  280  	kfree(pa_pdc_cell);
0d56d1aa Kyle McMartin  2009-06-23  281  
^1da177e Linus Torvalds 2005-04-16  282  	return PDC_OK;
^1da177e Linus Torvalds 2005-04-16 @283  }
^1da177e Linus Torvalds 2005-04-16  284  
^1da177e Linus Torvalds 2005-04-16  285  
^1da177e Linus Torvalds 2005-04-16  286  /* pat pdc can return information about a variety of different
^1da177e Linus Torvalds 2005-04-16  287   * types of memory (e.g. firmware,i/o, etc) but we only care about
^1da177e Linus Torvalds 2005-04-16  288   * the usable physical ram right now. Since the firmware specific
^1da177e Linus Torvalds 2005-04-16  289   * information is allocated on the stack, we'll be generous, in
^1da177e Linus Torvalds 2005-04-16  290   * case there is a lot of other information we don't care about.
^1da177e Linus Torvalds 2005-04-16  291   */

:::::: The code at line 283 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Drop the open-coded sched_clock() function and replace it by the provided
GENERIC_SCHED_CLOCK implementation.  We have seen quite some hung tasks in the
past, which seem to be fixed by this patch.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 71c4a3a..05c8980 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -34,7 +34,8 @@ config PARISC
 	select HAVE_ARCH_HASH
 	select HAVE_ARCH_SECCOMP_FILTER
 	select HAVE_ARCH_TRACEHOOK
-	select HAVE_UNSTABLE_SCHED_CLOCK if (SMP || !64BIT)
+	select GENERIC_SCHED_CLOCK
+	select HAVE_UNSTABLE_SCHED_CLOCK if SMP
 	select ARCH_NO_COHERENT_DMA_MMAP
 	select CPU_NO_EFFICIENT_FFS
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 9b63b87..325f30d 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/rtc.h>
 #include <linux/sched.h>
+#include <linux/sched_clock.h>
 #include <linux/kernel.h>
 #include <linux/param.h>
 #include <linux/string.h>
@@ -39,18 +40,6 @@
 
 static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
 
-#ifndef CONFIG_64BIT
-/*
- * The processor-internal cycle counter (Control Register 16) is used as time
- * source for the sched_clock() function.  This register is 64bit wide on a
- * 64-bit kernel and 32bit on a 32-bit kernel. Since sched_clock() always
- * requires a 64bit counter we emulate on the 32-bit kernel the higher 32bits
- * with a per-cpu variable which we increase every time the counter
- * wraps-around (which happens every ~4 secounds).
- */
-static DEFINE_PER_CPU(unsigned long, cr16_high_32_bits);
-#endif
-
 /*
  * We keep time on PA-RISC Linux by using the Interval Timer which is
  * a pair of registers; one is read-only and one is write-only; both
@@ -121,12 +110,6 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 	 */
 	mtctl(next_tick, 16);
 
-#if !defined(CONFIG_64BIT)
-	/* check for overflow on a 32bit kernel (every ~4 seconds). */
-	if (unlikely(next_tick < now))
-		this_cpu_inc(cr16_high_32_bits);
-#endif
-
 	/* Skip one clocktick on purpose if we missed next_tick.
 	 * The new CR16 must be "later" than current CR16 otherwise
 	 * itimer would not fire until CR16 wrapped - e.g 4 seconds
@@ -208,7 +191,7 @@ EXPORT_SYMBOL(profile_pc);
 
 /* clock source code */
 
-static cycle_t read_cr16(struct clocksource *cs)
+static cycle_t notrace read_cr16(struct clocksource *cs)
 {
 	return get_cycles();
 }
@@ -287,26 +270,9 @@ void read_persistent_clock(struct timespec *ts)
 }
 
 
-/*
- * sched_clock() framework
- */
-
-static u32 cyc2ns_mul __read_mostly;
-static u32 cyc2ns_shift __read_mostly;
-
-u64 sched_clock(void)
+static u64 notrace read_cr16_sched_clock(void)
 {
-	u64 now;
-
-	/* Get current cycle counter (Control Register 16). */
-#ifdef CONFIG_64BIT
-	now = mfctl(16);
-#else
-	now = mfctl(16) + (((u64) this_cpu_read(cr16_high_32_bits)) << 32);
-#endif
-
-	/* return the value in ns (cycles_2_ns) */
-	return mul_u64_u32_shr(now, cyc2ns_mul, cyc2ns_shift);
+	return get_cycles();
 }
 
 
@@ -316,17 +282,16 @@ u64 sched_clock(void)
 
 void __init time_init(void)
 {
-	unsigned long current_cr16_khz;
+	unsigned long cr16_hz;
 
-	current_cr16_khz = PAGE0->mem_10msec/10;  /* kHz */
 	clocktick = (100 * PAGE0->mem_10msec) / HZ;
-
-	/* calculate mult/shift values for cr16 */
-	clocks_calc_mult_shift(&cyc2ns_mul, &cyc2ns_shift, current_cr16_khz,
-				NSEC_PER_MSEC, 0);

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Re-enable interrupts early
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On 24.10.2016 21:55, Helge Deller wrote:
> Since kernel 3.9 we re-enable interrupts quite late due to commit c207a76bf15
> ("parisc: only re-enable interrupts if we need to schedule or deliver signals
> when returning to userspace"). At that time the parisc kernel had no dedicated
> IRQ stack, and this commit prevented kernel stack overflows.
> 
> But since commit 200c880420a ("parisc: implement irq stacks") we now have an
> IRQ stack, so we may be safe now.  And when CONFIG_DEBUG_STACKOVERFLOW=y is
> enabled, we can even check at runtime for overflows.


I've just seen a kernel panic, which I think to be triggered by this patch:

 
postfix: See http://www.postfix.org/COMPATIBILITY_README.html for details
postfix: To disable backwards compatibility use "postconf compatibility_level=2" and "postfix reload"
.
[   64.880230] stackcheck: swapper/1 will most likely overflow irq stack (sp:413abc7a40, stk bottom-top:413abc4028-413abc8028)
[   64.881281] Kernel panic - not syncing: low stack detected by irq handler - check messages
[   64.881281] 
[   64.881281] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.9.0-rc6-64bit+ #564
[   64.881281] Backtrace:
[   64.881281]  [<000000004021a7d8>] show_stack+0x68/0x80
[   64.881281]  [<00000000407fcb8c>] dump_stack+0xec/0x168
[   64.881281]  [<000000004024c364>] panic+0x204/0x500
[   64.881281]  [<000000004021ddac>] do_cpu_irq_mask+0x3c4/0x480
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281] 
[   64.881281]       _______________________________ 
[   64.881281]      < Your System ate a SPARC! Gah! >
[   64.881281]       ------------------------------- 
[   64.881281]              \   ^__^
[   64.881281]                  (__)\       )\/\
[   64.881281]                   U  ||----w |
[   64.881281]                      ||     ||
[   64.881281] swapper/1 (pid 0): Protection id trap (code 7)
[   64.881281] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.9.0-rc6-64bit+ #564
[   64.881281] task: 000000007fd0ea90 task.stack: 000000007fd5c000
[   64.881281] 
[   64.881281]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[   64.881281] PSW: 00001000000001101111110100001110 Not tainted
[   64.881281] r00-03  000000ff0806fd0e 0000000040d8aca0 0000000140219ebc 000000413abc8070
[   64.881281] r04-07  0000000040d0b4a0 000000413abc8400 000000413abc8328 000000413abc8078
[   64.881281] r08-11  000000004021a7d8 000000413abc7fb0 00000000411860d0 000000413abc7a40
[   64.881281] r12-15  000000007fd5c2c0 0000000000000041 0000000000000041 0000000040d8b4a0
[   64.881281] r16-19  000000413abc7a40 0000000040d8c4a0 0000000000000004 000000000800000e
[   64.881281] r20-23  0000000000000001 000000413abc83f0 0000000000000000 0000000000000384
[   64.881281] r24-27  0000000000000000 000000004080e5d8 000000004036aed0 0000000040d0b4a0
[   64.881281] r28-31  0000000000000000 000000413abc8a70 000000413abc8400 0000000041145d94
[   64.881281] sr00-03  00000000003b2800 0000000000000000 0000000000000000 00000000003b2800
[   64.881281] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[   64.881281] 
[   64.881281] IASQ: 0000000000000001 0000000000000001 IAOQ: 0000000140219ebc 0000000140219ec0
[   64.881281]  IIR: 43ffff40    ISR: 0000000000000000  IOR: 0000000000000000
[   64.881281]  CPU:        1   CR30: 000000007fd5c000 CR31: 9cf8a6e3d01f680f
[   64.881281]  ORIG_R28: 000000413abc8540
[   64.881281]  IAOQ[0]: 0x140219ebc
[   64.881281]  IAOQ[1]: 0x140219ec0
[   64.881281]  RP(r2): 0x140219ebc
[   64.881281] Backtrace:
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]                                                                                                                                       
[   64.881281] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.9.0-rc6-64bit+ #564                                                                       
[   64.881281] Backtrace:                                                                                                                            
[   64.881281]  [<000000004021a7d8>] show_stack+0x68/0x80                                                                                            
[   64.881281]  [<00000000407fcb8c>] dump_stack+0xec/0x168                                                                                           
[   64.881281]  [<000000004021ab08>] die_if_kernel+0x2c0/0x3a8                                                                                       
[   64.881281]  [<000000004021b7fc>] handle_interruption+0x6dc/0xbb0                                                                                 
[   64.881281]  [<0000000040208084>] intr_check_sig+0x0/0x38                                                                                         
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]  [<0000000040208074>] intr_return+0x0/0x10                                                                                            
[   64.881281]                                                                                                                                       
[   64.881281] Kernel panic - not syncing: Fatal exception in interrupt                                                                              
<Cpu1> 78000c6201e00000  a0e008c01100b009  CC_PAT_ENCODED_FIELD_WARNING                                                                              
<Cpu1> 76000c6801e00000  0000000000000520  CC_PAT_DATA_FIELD_WARNING                                                                                 
<Cpu1> 0300109101e00000  0000000000000000  CC_PROCS_ENTRY_OUT                                                                                        
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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git for-next
head:   4dafeb82a4b7ccfa25c7517d09832be488994c28
commit: 4dafeb82a4b7ccfa25c7517d09832be488994c28 [3/3] parisc: Switch to GENERIC_SCHED_CLOCK implementation
config: parisc-allyesconfig (attached as .config)
compiler: hppa-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 4dafeb82a4b7ccfa25c7517d09832be488994c28
        # save the attached .config to linux build tree
        make.cross ARCH=parisc 

All error/warnings (new ones prefixed by >>):

>> drivers/clocksource/mps2-timer.c:38:28: error: field 'clkevt' has incomplete type
     struct clock_event_device clkevt;
                               ^~~~~~
   In file included from include/linux/clk.h:16:0,
                    from drivers/clocksource/mps2-timer.c:14:
   drivers/clocksource/mps2-timer.c: In function 'to_mps2_clkevt':
>> include/linux/kernel.h:836:48: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
     const typeof( ((type *)0)->member ) *__mptr = (ptr); \
                                                   ^
>> drivers/clocksource/mps2-timer.c:50:9: note: in expansion of macro 'container_of'
     return container_of(c, struct clockevent_mps2, clkevt);
            ^~~~~~~~~~~~
   drivers/clocksource/mps2-timer.c: In function 'mps2_clockevent_init':
>> drivers/clocksource/mps2-timer.c:154:24: error: 'CLOCK_EVT_FEAT_PERIODIC' undeclared (first use in this function)
     ce->clkevt.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
                           ^~~~~~~~~~~~~~~~~~~~~~~
   drivers/clocksource/mps2-timer.c:154:24: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/clocksource/mps2-timer.c:154:50: error: 'CLOCK_EVT_FEAT_ONESHOT' undeclared (first use in this function)
     ce->clkevt.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
                                                     ^~~~~~~~~~~~~~~~~~~~~~
   drivers/clocksource/mps2-timer.c:156:53: warning: left-hand operand of comma expression has no effect [-Wunused-value]
     ce->clkevt.set_state_shutdown = mps2_timer_shutdown,
                                                        ^
   drivers/clocksource/mps2-timer.c:157:57: warning: left-hand operand of comma expression has no effect [-Wunused-value]
     ce->clkevt.set_state_periodic = mps2_timer_set_periodic,
                                                            ^
   drivers/clocksource/mps2-timer.c:158:52: warning: left-hand operand of comma expression has no effect [-Wunused-value]
     ce->clkevt.set_state_oneshot = mps2_timer_shutdown,
                                                       ^
>> drivers/clocksource/mps2-timer.c:170:2: error: implicit declaration of function 'clockevents_config_and_register' [-Werror=implicit-function-declaration]
     clockevents_config_and_register(&ce->clkevt, rate, 0xf, 0xffffffff);
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +836 include/linux/kernel.h

^1da177e Linus Torvalds 2005-04-16  830   * @ptr:	the pointer to the member.
^1da177e Linus Torvalds 2005-04-16  831   * @type:	the type of the container struct this is embedded in.
^1da177e Linus Torvalds 2005-04-16  832   * @member:	the name of the member within the struct.
^1da177e Linus Torvalds 2005-04-16  833   *
^1da177e Linus Torvalds 2005-04-16  834   */
^1da177e Linus Torvalds 2005-04-16  835  #define container_of(ptr, type, member) ({			\
^1da177e Linus Torvalds 2005-04-16 @836  	const typeof( ((type *)0)->member ) *__mptr = (ptr);	\
^1da177e Linus Torvalds 2005-04-16  837  	(type *)( (char *)__mptr - offsetof(type,member) );})
^1da177e Linus Torvalds 2005-04-16  838  
b9d4f426 Arnaud Lacombe 2011-07-25  839  /* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */

:::::: The code at line 836 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From - Thu Nov 08 21:39:20 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix race in pci-dma.c
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We are still troubled by occasional random segmentation faults and =
memory memory corruption on
SMP machines.  The causes quite a few package builds to fail on the =
Debian buildd machines for parisc.
When gcc-6 failed to build three times in a row, I looked again at the =
TLB related code again.  I found a
couple of issues.  This is the first.

In general, we need to ensure page table updates and corresponding TBL =
purges are atomic.  The
attached patch fixes an instance in pci-dma.c where the page table =
update was not guarded by the TLB
lock.

Tested on rp3440 and c8000.  So far, no further random segmentation =
faults have been observed.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>


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diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 02d9ed0..494ff6e 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -95,8 +95,8 @@ static inline int map_pte_uncached(pte_t * pte,
 
 		if (!pte_none(*pte))
 			printk(KERN_ERR "map_pte_uncached: page already exists\n");
-		set_pte(pte, __mk_pte(*paddr_ptr, PAGE_KERNEL_UNC));
 		purge_tlb_start(flags);
+		set_pte(pte, __mk_pte(*paddr_ptr, PAGE_KERNEL_UNC));
 		pdtlb_kernel(orig_vaddr);
 		purge_tlb_end(flags);
 		vaddr += PAGE_SIZE;

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From - Thu Nov 08 21:39:20 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Also flush data TLB in flush_icache_page_asm
Date: Thu, 24 Nov 2016 20:18:14 -0500
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This is the second issue I noticed in reviewing the parisc TLB code.

The fic instruction may use either the instruction or data TLB in =
flushing the instruction cache.  Thus,
on machines with a split TLB, we should also flush the data TLB after =
setting up the temporary alias
registers.

Although this has no functional impact, I changed the pdtlb and pitlb =
instructions to consistently use
the index register %r0.  These instructions do not support integer =
displacements.

Tested on rp3440 and c8000.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>


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diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index b743a80..fe0b034 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -96,7 +96,7 @@ fitmanyloop:					/* Loop if LOOP >= 2 */
 
 fitmanymiddle:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fitmanymiddle	/* Adjusted inner loop decr */
-	pitlbe		0(%sr1, %r28)
+	pitlbe		%r0(%sr1, %r28)
 	pitlbe,m	%arg1(%sr1, %r28)	/* Last pitlbe and addr adjust */
 	addib,COND(>)		-1, %r29, fitmanymiddle	/* Middle loop decr */
 	copy		%arg3, %r31		/* Re-init inner loop count */
@@ -139,7 +139,7 @@ fdtmanyloop:					/* Loop if LOOP >= 2 */
 
 fdtmanymiddle:					/* Loop if LOOP >= 2 */
 	addib,COND(>)		-1, %r31, fdtmanymiddle	/* Adjusted inner loop decr */
-	pdtlbe		0(%sr1, %r28)
+	pdtlbe		%r0(%sr1, %r28)
 	pdtlbe,m	%arg1(%sr1, %r28)	/* Last pdtlbe and addr adjust */
 	addib,COND(>)		-1, %r29, fdtmanymiddle	/* Middle loop decr */
 	copy		%arg3, %r31		/* Re-init inner loop count */
@@ -620,12 +626,12 @@ ENTRY(copy_user_page_asm)
 	/* Purge any old translations */
 
 #ifdef CONFIG_PA20
-	pdtlb,l		0(%r28)
-	pdtlb,l		0(%r29)
+	pdtlb,l		%r0(%r28)
+	pdtlb,l		%r0(%r29)
 #else
 	tlb_lock	%r20,%r21,%r22
-	pdtlb		0(%r28)
-	pdtlb		0(%r29)
+	pdtlb		%r0(%r28)
+	pdtlb		%r0(%r29)
 	tlb_unlock	%r20,%r21,%r22
 #endif
 
@@ -768,10 +774,10 @@ ENTRY(clear_user_page_asm)
 	/* Purge any old translation */
 
 #ifdef CONFIG_PA20
-	pdtlb,l		0(%r28)
+	pdtlb,l		%r0(%r28)
 #else
 	tlb_lock	%r20,%r21,%r22
-	pdtlb		0(%r28)
+	pdtlb		%r0(%r28)
 	tlb_unlock	%r20,%r21,%r22
 #endif
 
@@ -852,10 +858,10 @@ ENTRY(flush_dcache_page_asm)
 	/* Purge any old translation */
 
 #ifdef CONFIG_PA20
-	pdtlb,l		0(%r28)
+	pdtlb,l		%r0(%r28)
 #else
 	tlb_lock	%r20,%r21,%r22
-	pdtlb		0(%r28)
+	pdtlb		%r0(%r28)
 	tlb_unlock	%r20,%r21,%r22
 #endif
 
@@ -892,10 +898,10 @@ ENTRY(flush_dcache_page_asm)
 	sync
 
 #ifdef CONFIG_PA20
-	pdtlb,l		0(%r25)
+	pdtlb,l		%r0(%r25)
 #else
 	tlb_lock	%r20,%r21,%r22
-	pdtlb		0(%r25)
+	pdtlb		%r0(%r25)
 	tlb_unlock	%r20,%r21,%r22
 #endif
 
@@ -925,13 +931,18 @@ ENTRY(flush_icache_page_asm)
 	depwi		0, 31,PAGE_SHIFT, %r28	/* Clear any offset bits */
 #endif
 
-	/* Purge any old translation */
+	/* Purge any old translation.  Note that the FIC instruction
+	 * may use either the instruction or data TLB.  Given that we
+	 * have a flat address space, it's not clear which TLB will be
+	 * used.  So, we purge both entries.  */
 
 #ifdef CONFIG_PA20
+	pdtlb,l		%r0(%r28)
 	pitlb,l         %r0(%sr4,%r28)
 #else
 	tlb_lock        %r20,%r21,%r22
-	pitlb           (%sr4,%r28)
+	pdtlb		%r0(%r28)
+	pitlb           %r0(%sr4,%r28)
 	tlb_unlock      %r20,%r21,%r22
 #endif
 
@@ -970,10 +981,12 @@ ENTRY(flush_icache_page_asm)
 	sync
 
 #ifdef CONFIG_PA20
+	pdtlb,l		%r0(%r28)
 	pitlb,l         %r0(%sr4,%r25)
 #else
 	tlb_lock        %r20,%r21,%r22
-	pitlb           (%sr4,%r25)
+	pdtlb		%r0(%r28)
+	pitlb           %r0(%sr4,%r25)
 	tlb_unlock      %r20,%r21,%r22
 #endif
 

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From - Thu Nov 08 21:39:20 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc architecture fixes for 4.9-rc7
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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        James Bottomley <James.Bottomley@HansenPartnership.com>,
        John David Anglin <dave.anglin@bell.net>
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Hi Linus,

Please pull important fixes for the parisc architecture for v4.9-rc7 from
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.9-4


On parisc we were still seeing occasional random segmentation faults and memory
corruption on SMP machines. Dave Anglin then looked again at the TLB related
code and found two issues in the PCI DMA and generic TLB flush functions.

Then, in our startup code we had some timing of the cache and TLB functions to
calculate a threshold when to use a complete TLB/cache flush or just to flush a
specific range. This code produced a race with newly started CPUs and thus lead
to occasional kernel crashes (due to stale TLB/cache entries).  The patch by
Dave fixes this issue by flushing the local caches before starting secondary
CPUs and by removing the race.

The last problem fixed by this series is that we quite often suffered from hung
tasks and self-detected stalls on the CPUs. It was somehow clear that this was
related to the (in v4.7) newly introduced cr16 clocksource and the own
implementation of sched_clock(). I replaced the open-coded sched_clock()
function and switched to the generic sched_clock() implementation which seems
to have fixed this isse as well.

All patches have been sucessfully tested on a variety of machines, including our
debian buildd servers.

All patches (beside the small pr_cont fix) are tagged for stable releases.

Thanks,
Helge


----------------------------------------------------------------
Helge Deller (2):
      parisc: Fix printk continuations in system detection
      parisc: Switch to generic sched_clock implementation

John David Anglin (3):
      parisc: Fix races in parisc_setup_cache_timing()
      parisc: Fix race in pci-dma.c
      parisc: Also flush data TLB in flush_icache_page_asm

 arch/parisc/Kconfig            |  4 ++-
 arch/parisc/kernel/cache.c     | 31 +++++++++--------------
 arch/parisc/kernel/inventory.c |  8 +++---
 arch/parisc/kernel/pacache.S   | 37 ++++++++++++++++-----------
 arch/parisc/kernel/pci-dma.c   |  2 +-
 arch/parisc/kernel/setup.c     |  4 +++
 arch/parisc/kernel/time.c      | 57 ++++++++----------------------------------
 7 files changed, 57 insertions(+), 86 deletions(-)
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From - Thu Nov 08 21:39:20 2018
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.parisc
Subject: parsic: strange boot crash on a500
Date: Sat, 26 Nov 2016 02:13:34 +0200 (EET)
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I have succeeded in keepin my rp3410 and rp3440 up to date but I have 
trouble on A500 after 4.8.

Tried two kernels, something around 4.9-rc2 and 
4.9.0-rc5-00297-g20afa6e, they both crash on boot like that. Hardware 
seems fine, I can boot kernels up to 4.8 without problems.

After these messages it just sits there, no progress is made.

PDT is empty.

All fields see to be 0 for the alert, except timestamp ands alert level 
(=7).

Is there anything in PIM that might be of interest?


Bisecting slowly is possible.

HARD Booted.
palo ipl 1.95 portage@a500 Thu Jul  7 15:40:10 EEST 2016

Partition Start(MB) End(MB) Id Type
1               1      32   f0 Palo
2              33     224   83 ext2
3             225   31696   83 ext2
4           31697   34732   83 ext2

PALO(F0) partition contains:

Command line for kernel: 'root=/dev/sda3 console=ttyS0 palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2

************* SYSTEM ALERT **************
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         OFF       ON         ON
LED State: Running non-OS code.  Non-critical error detected.
Check Chassis and Console Logs for error messages.

0x0000007000FF6292 00000000 00000000 - type  0 = Data Field Unused
0x5800087000FF6292 0000740A 19151E19 - type 11 = Timestamp 11/25/2016 21:30:25
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry
->Choice:Timeout!
*****************************************

Interesting entries from SL GSP command from these seconds:




Log Entry # 300 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 8 = I/O
SOURCE DETAIL: 2 = system bus adapter   SOURCE ID: 6
PROBLEM DETAIL: 3 = function failure

CALLER ACTIVITY: 6 = machine check   STATUS: 3
CALLER SUBACTIVITY: 34 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x7000002382066343 00000000 00070200 type 14 = Problem Detail
0x5800082382066343 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.


Log Entry # 301 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 8 = I/O
SOURCE DETAIL: 2 = system bus adapter   SOURCE ID: 4
PROBLEM DETAIL: 3 = function failure

CALLER ACTIVITY: 6 = machine check   STATUS: 3
CALLER SUBACTIVITY: 34 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x7000002382046343 00000000 00070200 type 14 = Problem Detail
0x5800082382046343 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.



Log Entry # 302 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 8 = I/O
SOURCE DETAIL: 2 = system bus adapter   SOURCE ID: 2
PROBLEM DETAIL: 3 = function failure

CALLER ACTIVITY: 6 = machine check   STATUS: 3
CALLER SUBACTIVITY: 34 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x7000002382026343 00000000 00070200 type 14 = Problem Detail
0x5800082382026343 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.



Log Entry # 303 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 8 = I/O
SOURCE DETAIL: 2 = system bus adapter   SOURCE ID: 0
PROBLEM DETAIL: 3 = function failure

CALLER ACTIVITY: 6 = machine check   STATUS: 3
CALLER SUBACTIVITY: 34 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x7000002382006343 00000000 00070200 type 14 = Problem Detail
0x5800082382006343 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.



Log Entry # 304 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 0 = No failure detected, forward progress

SOURCE: 8 = I/O
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 0
CALLER SUBACTIVITY: 30 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x0000000080006300 00000000 00000001 type  0 = Data Field Unused
0x5800080080006300 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.



Log Entry # 305 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 40 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x0000002000FF6402 00000000 00000000 type  0 = Data Field Unused
0x5800082000FF6402 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.



Log Entry # 306 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 44 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x0000002000FF6442 00000000 00000000 type  0 = Data Field Unused
0x5800082000FF6442 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.

Log Entry # 307 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 0 = No failure detected, forward progress

SOURCE: 8 = I/O
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: F
CALLER SUBACTIVITY: 31 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x000000008000631F 00000000 00000000 type  0 = Data Field Unused
0x580008008000631F 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.



Log Entry # 308 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 0 = No failure detected, forward progress

SOURCE: 8 = I/O
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 0
CALLER SUBACTIVITY: 31 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x0000000080006310 00000000 00000001 type  0 = Data Field Unused
0x5800080080006310 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.



Log Entry # 309 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 7 = memory
SOURCE DETAIL: 9 = unexpected   SOURCE ID: 0
PROBLEM DETAIL: 3 = unexpected

CALLER ACTIVITY: 6 = machine check   STATUS: 3
CALLER SUBACTIVITY: 13 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x7000002379006133 C1BFF0FF FED08040 type 14 = Problem Detail
0x5800082379006133 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.


Log Entry # 310 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 7 = memory
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 08 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x7000002070006082 00000000 00392400 type 14 = Problem Detail
0x5800082070006082 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.



Log Entry # 311 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 7 = memory
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 06 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x6000002070006062 00000000 00000010 type 12 = Device Status
0x5800082070006062 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.


Log Entry # 312 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 1 = Information only, no action required

SOURCE: 6 = platform
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 2A = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0xA000001060FF62A2 00000000 0000050B type 20 = major change in system 
state
0x5800081060FF62A2 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.



Log Entry # 313 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 7 = reserved

SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 29 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x0000007000FF6292 00000000 00000000 type  0 = Data Field Unused
0x5800087000FF6292 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.


Log Entry # 314 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 1 = processor
SOURCE DETAIL: 1 = processor general   SOURCE ID: 0
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 31 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x1800002011006312 CB810000 00000000 type  3 = Actual Data
0x5800082011006312 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.



Log Entry # 315 :
SYSTEM NAME: a500-m
DATE: 11/25/2016 TIME: 21:30:25
ALERT LEVEL: 2 = Non-Urgent operator attention required

SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

CALLER ACTIVITY: 6 = machine check   STATUS: 2
CALLER SUBACTIVITY: 24 = implementation dependent
REPORTING ENTITY TYPE: 0 = system firmware   REPORTING ENTITY ID: 00

0x0000002000FF6242 00000000 00000000 type  0 = Data Field Unused
0x5800082000FF6242 0000740A 19151E19 type 11 = Timestamp 11/25/2016 
21:30:25
Type CR for next entry, - CR for previous entry, Q CR to quit.




-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:39:20 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parsic: strange boot crash on a500
Date: Sat, 26 Nov 2016 10:12:15 +0100
Lines: 59
Approved: news@gmane.org
Message-ID: <e8a4822d-bd78-7d5a-9c4b-b515b6fa8eb1@gmx.de>
References: <alpine.LRH.2.20.1611260142170.9292@math.ut.ee>
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To: Meelis Roos <mroos@linux.ee>, linux-parisc@vger.kernel.org
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Hi Meelis,

I think I know what's going on...

On 26.11.2016 01:13, Meelis Roos wrote:
> I have succeeded in keepin my rp3410 and rp3440 up to date but I have 
> trouble on A500 after 4.8.
> 
> Tried two kernels, something around 4.9-rc2 and

In the rc1-rc3 kernel series I switched in kernel from bootmem 
to memblock allocator. There was some bug in there which led to
a crash. It was fixed later on.
So, rc2 is probably bad, but this is not the main reason why
your machine dies at the stage you report here...
 
> 4.9.0-rc5-00297-g20afa6e, they both crash on boot like that.

rc5 should be more OK, but just last night we fixed some more problems:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ad0e83cf86bcaeb6ca3c37060a3ce866b25fb42
So, if you try, please update to latest git head now.

> Hardware seems fine, I can boot kernels up to 4.8 without problems.
> ...
> HARD Booted.
> palo ipl 1.95 portage@a500 Thu Jul  7 15:40:10 EEST 2016
> 
> Partition Start(MB) End(MB) Id Type
> 1               1      32   f0 Palo
> 2              33     224   83 ext2
> 3             225   31696   83 ext2
> 4           31697   34732   83 ext2
> 
> PALO(F0) partition contains:

You sadly didn't included the PALO segment list here.
I think this is your main problem.
Probably you have quite some modules built-in, and your
kernel got bigger than before and as such it triggers
an old bug in the palo boot loader.

Please read this palo commit message which explains it:
https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/commit/?id=70bd7a9a41e318c0575755a78c4d18ad97495c47

I think those steps should fix your problem:
1. Boot into a functional kernel (e.g. v4.8)
2. Update your palo boot loader: 
   https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/
   You should build palo 1.96, and then *install* it into
   your palo boot partition:  run "palo -v" once.
3. Pull and build Linus' latest git tree to get latest parisc fixes
4. boot again, palo should report version 1.96 and it should start your new kernel.

Helge
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From: Meelis Roos <mroos@linux.ee>
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Subject: Re: parsic: strange boot crash on a500
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To: Helge Deller <deller@gmx.de>
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> > 4.9.0-rc5-00297-g20afa6e, they both crash on boot like that.
> 
> rc5 should be more OK, but just last night we fixed some more problems:
> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ad0e83cf86bcaeb6ca3c37060a3ce866b25fb42
> So, if you try, please update to latest git head now.

Updated to ths version.

> 1. Boot into a functional kernel (e.g. v4.8)
> 2. Update your palo boot loader: 
>    https://git.kernel.org/cgit/linux/kernel/git/deller/palo.git/

Cloned git://git.kernel.org/pub/scm/linux/kernel/git/deller/palo.git 
and built and installed it.

>    You should build palo 1.96, and then *install* it into
>    your palo boot partition:  run "palo -v" once.

palo version 1.96 http://www.parisc-linux.org - Sun Nov 27 21:27:38 EET 2016
Partition Start(MB) End(MB) Id Type
1               1      32   f0 Palo
2              33     224   83 ext2
3             225   31696   83 ext2
4           31697   34732   83 ext2
F0 partition start sector 32 length 65504
do_ra(1, 4, -1, -1, '2/vmlinux root=/dev/sda3 console=ttyS0', 3, -1, 16384, 33538048)
check_bootloader 215
checksum(0x331d8, 45056) = 0x00000000
ipl: addr 16384 size 45056 entry 0x0
 ko 0x0 ksz 0 knsz 0 k64o 0x0 k64sz 0 k64nsz 0 rdo 0 rdsz 0
<2/vmlinux root=/dev/sda3 console=ttyS0>
check_bootloader 670
checksum(0x281d0, 45056) = 0x00000000
ipl: addr 16384 size 45056 entry 0x0
 ko 0x0 ksz 0 knsz 0 k64o 0x0 k64sz 0 k64nsz 0 rdo 0 rdsz 0
<2/vmlinux root=/dev/sda3 console=ttyS0>


> 3. Pull and build Linus' latest git tree to get latest parisc fixes

Built.

> 4. boot again, palo should report version 1.96 and it should start your new kernel.

Unfortunately, still the same. Is iplboot precompiled? It shows 08 Oct.

Trying Primary Boot Path
------------------------
Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.96 http://www.parisc-linux.org - Sun, 08 Oct 2016 22:40:31 +0100

Partition Start(MB) End(MB) Id Type
1               1      32   f0 Palo
2              33     224   83 ext2
3             225   31696   83 ext2
4           31697   34732   83 ext2

PALO(F0) partition contains:

Command line for kernel: 'root=/dev/sda3 console=ttyS0 
palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2

************* SYSTEM ALERT **************
SYSTEM NAME: a500-m
DATE: 11/27/2016 TIME: 19:34:16
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         OFF       ON         ON
LED State: Running non-OS code.  Non-critical error detected.
Check Chassis and Console Logs for error messages.

0x0000007000FF6292 00000000 00000000 - type  0 = Data Field Unused
0x5800087000FF6292 0000740A 1B132210 - type 11 = Timestamp 11/27/2016 
19:34:16
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry


-- 
Meelis Roos (mroos@linux.ee)
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On 27.11.2016 22:35, Meelis Roos wrote:
> Cloned git://git.kernel.org/pub/scm/linux/kernel/git/deller/palo.git 
> and built and installed it.
> 
>>    You should build palo 1.96, and then *install* it into
>>    your palo boot partition:  run "palo -v" once.
> 
> palo version 1.96 http://www.parisc-linux.org - Sun Nov 27 21:27:38 EET 2016
> Partition Start(MB) End(MB) Id Type
> 1               1      32   f0 Palo
> 2              33     224   83 ext2
> 3             225   31696   83 ext2
> 4           31697   34732   83 ext2
> F0 partition start sector 32 length 65504
> do_ra(1, 4, -1, -1, '2/vmlinux root=/dev/sda3 console=ttyS0', 3, -1, 16384, 33538048)
> check_bootloader 215
> checksum(0x331d8, 45056) = 0x00000000
> ipl: addr 16384 size 45056 entry 0x0
>  ko 0x0 ksz 0 knsz 0 k64o 0x0 k64sz 0 k64nsz 0 rdo 0 rdsz 0
> <2/vmlinux root=/dev/sda3 console=ttyS0>
> check_bootloader 670
> checksum(0x281d0, 45056) = 0x00000000
> ipl: addr 16384 size 45056 entry 0x0
>  ko 0x0 ksz 0 knsz 0 k64o 0x0 k64sz 0 k64nsz 0 rdo 0 rdsz 0
> <2/vmlinux root=/dev/sda3 console=ttyS0>

Good.

>> 3. Pull and build Linus' latest git tree to get latest parisc fixes
> 
> Built.

Ok.
I assume you copied it to /boot/vmlinux then ?

>> 4. boot again, palo should report version 1.96 and it should start your new kernel.
> 
> Unfortunately, still the same. 
> Is iplboot precompiled? It shows 08 Oct.

Yes, it's precompiled (needed if palo is built on other architectures).
You can compile it yourself with "make iplboot".
But the precompiled version works for me, so I don't think it's related to your boot problem.

> Trying Primary Boot Path
> ------------------------
> Booting... 
> Boot IO Dependent Code (IODC) revision 1
> 
> 
> HARD Booted.
> palo ipl 1.96 http://www.parisc-linux.org - Sun, 08 Oct 2016 22:40:31 +0100

Good.
 
> Partition Start(MB) End(MB) Id Type
> 1               1      32   f0 Palo
> 2              33     224   83 ext2
> 3             225   31696   83 ext2
> 4           31697   34732   83 ext2
> 
> PALO(F0) partition contains:
> 
> Command line for kernel: 'root=/dev/sda3 console=ttyS0 
> palo_kernel=2/vmlinux'
> Selected kernel: /vmlinux from partition 2

I'm missing here the information of the various sections
in the vmlinux file which the boot loader usually prints
here.

Can you please check (e.g. readelf/objdump) your vmlinux file?
I assume partition 2 is your /boot partition, in which case it's /boot/vmlinux.

There seems to be a current problem with latest binutils (on x86_64), but
not sure if this affects you.

Helge

> ************* SYSTEM ALERT **************
> SYSTEM NAME: a500-m
> DATE: 11/27/2016 TIME: 19:34:16
> ALERT LEVEL: 7 = reserved
> 
> REASON FOR ALERT
> SOURCE: 0 = unknown, no source stated
> SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
> PROBLEM DETAIL: 0 = no problem detail

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> > Cloned git://git.kernel.org/pub/scm/linux/kernel/git/deller/palo.git 
> > and built and installed it.
> > 
> >>    You should build palo 1.96, and then *install* it into
> >>    your palo boot partition:  run "palo -v" once.
> > 
> > palo version 1.96 http://www.parisc-linux.org - Sun Nov 27 21:27:38 EET 2016
> > Partition Start(MB) End(MB) Id Type
> > 1               1      32   f0 Palo
> > 2              33     224   83 ext2
> > 3             225   31696   83 ext2
> > 4           31697   34732   83 ext2
> > F0 partition start sector 32 length 65504
> > do_ra(1, 4, -1, -1, '2/vmlinux root=/dev/sda3 console=ttyS0', 3, -1, 16384, 33538048)
> > check_bootloader 215
> > checksum(0x331d8, 45056) = 0x00000000
> > ipl: addr 16384 size 45056 entry 0x0
> >  ko 0x0 ksz 0 knsz 0 k64o 0x0 k64sz 0 k64nsz 0 rdo 0 rdsz 0
> > <2/vmlinux root=/dev/sda3 console=ttyS0>
> > check_bootloader 670
> > checksum(0x281d0, 45056) = 0x00000000
> > ipl: addr 16384 size 45056 entry 0x0
> >  ko 0x0 ksz 0 knsz 0 k64o 0x0 k64sz 0 k64nsz 0 rdo 0 rdsz 0
> > <2/vmlinux root=/dev/sda3 console=ttyS0>
> 
> Good.
> 
> >> 3. Pull and build Linus' latest git tree to get latest parisc fixes
> > 
> > Built.
> 
> Ok.
> I assume you copied it to /boot/vmlinux then ?

Yes, as I always do.

> >> 4. boot again, palo should report version 1.96 and it should start your new kernel.
> > 
> > Unfortunately, still the same. 
> > Is iplboot precompiled? It shows 08 Oct.
> 
> Yes, it's precompiled (needed if palo is built on other architectures).
> You can compile it yourself with "make iplboot".
> But the precompiled version works for me, so I don't think it's related to your boot problem.
> 
> > Trying Primary Boot Path
> > ------------------------
> > Booting... 
> > Boot IO Dependent Code (IODC) revision 1
> > 
> > 
> > HARD Booted.
> > palo ipl 1.96 http://www.parisc-linux.org - Sun, 08 Oct 2016 22:40:31 +0100
> 
> Good.
>  
> > Partition Start(MB) End(MB) Id Type
> > 1               1      32   f0 Palo
> > 2              33     224   83 ext2
> > 3             225   31696   83 ext2
> > 4           31697   34732   83 ext2
> > 
> > PALO(F0) partition contains:
> > 
> > Command line for kernel: 'root=/dev/sda3 console=ttyS0 
> > palo_kernel=2/vmlinux'
> > Selected kernel: /vmlinux from partition 2
> 
> I'm missing here the information of the various sections
> in the vmlinux file which the boot loader usually prints
> here.

Well, I did not leave anything out AFAIK?

> 
> Can you please check (e.g. readelf/objdump) your vmlinux file?
> I assume partition 2 is your /boot partition, in which case it's /boot/vmlinux.

To discontinue, press any key within 10 seconds.

Boot terminated.


---- Main Menu 
---------------------------------------------------------------

     Command                           Description
     -------                           -----------
     BOot [PRI|ALT|<path>]             Boot from specified path
     PAth [PRI|ALT] [<path>]           Display or modify a path
     SEArch [DIsplay|IPL] [<path>]     Search for boot devices

     COnfiguration menu                Displays or sets boot values
     INformation menu                  Displays hardware information
     SERvice menu                      Displays service commands

     DIsplay                           Redisplay the current menu
     HElp [<menu>|<command>]           Display help for menu or command
     RESET                             Restart the system
----
Main Menu: Enter command or menu > bo
Interact with IPL (Y, N, or Cancel)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.96 http://www.parisc-linux.org - Sun, 08 Oct 2016 22:40:31 
+0100

Partition Start(MB) End(MB) Id Type
1               1      32   f0 Palo
2              33     224   83 ext2
3             225   31696   83 ext2
4           31697   34732   83 ext2

PALO(F0) partition contains:
Current command line:
2/vmlinux root=/dev/sda3 console=ttyS0
 0: 2/vmlinux
 1: root=/dev/sda3
 2: console=ttyS0

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
'x'    reset and reboot machine
? b

Command line for kernel: 'root=/dev/sda3 console=ttyS0 
palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2

************* SYSTEM ALERT **************
SYSTEM NAME: a500-m
DATE: 11/27/2016 TIME: 21:34:57
ALERT LEVEL: 7 = reserved

REASON FOR ALERT
SOURCE: 0 = unknown, no source stated
SOURCE DETAIL: 0 = unknown, no source stated   SOURCE ID: FF
PROBLEM DETAIL: 0 = no problem detail

LEDs:  RUN      ATTENTION     FAULT     REMOTE     POWER
       FLASH    FLASH         FLASH     ON         ON
LED State: Unexpected Reboot. Running non-OS code. Non-critical error 
detected.
Check Chassis and Console Logs for error messages.

0x0000007000FF6292 00000000 00000000 - type  0 = Data Field Unused
0x5800087000FF6292 0000740A 1B152239 - type 11 = Timestamp 11/27/2016 
21:34:57
A: ack read of this entry - X: Disable all future alert messages
Anything else skip redisplay the log entry

=====================================================================================
When I boot 4.8.0, I do get some more ouptut:

Main Menu: Enter command or menu > bo
Interact with IPL (Y, N, or Cancel)?> y

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.
palo ipl 1.96 http://www.parisc-linux.org - Sun, 08 Oct 2016 22:40:31 
+0100

Partition Start(MB) End(MB) Id Type
1               1      32   f0 Palo
2              33     224   83 ext2
3             225   31696   83 ext2
4           31697   34732   83 ext2

PALO(F0) partition contains:
Current command line:
2/vmlinux root=/dev/sda3 console=ttyS0
 0: 2/vmlinux
 1: root=/dev/sda3
 2: console=ttyS0

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
'x'    reset and reboot machine
? 0
2/vmlinux-4.8.0
Current command line:
2/vmlinux-4.8.0 root=/dev/sda3 console=ttyS0
 0: 2/vmlinux-4.8.0
 1: root=/dev/sda3
 2: console=ttyS0
<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
'x'    reset and reboot machine
? b

Command line for kernel: 'root=/dev/sda3 console=ttyS0 
palo_kernel=2/vmlinux-4.8.0'
Selected kernel: /vmlinux-4.8.0 from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 4
Segment 0 load 00100000 size 133632 mediaptr 0x1000
Segment 1 load 00121000 size 22176 mediaptr 0x22000
Segment 2 load 00200000 size 5748800 mediaptr 0x28000
Segment 3 load 00800000 size 1011968 mediaptr 0x5a4000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 4.8.0 (mroos@a500) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #99 Wed Oct 5 20:36:13 EEST 2016

...

-- 
Meelis Roos (mroos@linux.ee)
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> > > Partition Start(MB) End(MB) Id Type
> > > 1               1      32   f0 Palo
> > > 2              33     224   83 ext2
> > > 3             225   31696   83 ext2
> > > 4           31697   34732   83 ext2
> > > 
> > > PALO(F0) partition contains:
> > > 
> > > Command line for kernel: 'root=/dev/sda3 console=ttyS0 
> > > palo_kernel=2/vmlinux'
> > > Selected kernel: /vmlinux from partition 2
> > 
> > I'm missing here the information of the various sections
> > in the vmlinux file which the boot loader usually prints
> > here.
> 
> Well, I did not leave anything out AFAIK?

It seems palo can't read the vmlinux file (aka get's confused with the contents
and doesn't print the ELF section list).

Did you maybe used a recent binutils package?
See:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845690
https://sourceware.org/ml/binutils/2016-11/msg00348.html

Maybe downgrading binutils helps?

Helge
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> > > > Command line for kernel: 'root=/dev/sda3 console=ttyS0 
> > > > palo_kernel=2/vmlinux'
> > > > Selected kernel: /vmlinux from partition 2
> > > 
> > > I'm missing here the information of the various sections
> > > in the vmlinux file which the boot loader usually prints
> > > here.
> > 
> > Well, I did not leave anything out AFAIK?
> 
> It seems palo can't read the vmlinux file (aka get's confused with the contents
> and doesn't print the ELF section list).
> 
> Did you maybe used a recent binutils package?
> See:
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845690
> https://sourceware.org/ml/binutils/2016-11/msg00348.html
> 
> Maybe downgrading binutils helps?

Sorry, I just noticed that you are pretty aware of this bug
(you actually opened the ticket) :-)

Helge
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From - Thu Nov 08 21:39:21 2018
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Aw: Re: parsic: strange boot crash on a500
Date: Mon, 28 Nov 2016 19:39:13 +0200 (EET)
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To: Helge Deller <deller@gmx.de>
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> > > > > Command line for kernel: 'root=/dev/sda3 console=ttyS0 
> > > > > palo_kernel=2/vmlinux'
> > > > > Selected kernel: /vmlinux from partition 2
> > > > 
> > > > I'm missing here the information of the various sections
> > > > in the vmlinux file which the boot loader usually prints
> > > > here.
> > > 
> > > Well, I did not leave anything out AFAIK?
> > 
> > It seems palo can't read the vmlinux file (aka get's confused with the contents
> > and doesn't print the ELF section list).
> > 
> > Did you maybe used a recent binutils package?
> > See:
> > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845690
> > https://sourceware.org/ml/binutils/2016-11/msg00348.html
> > 
> > Maybe downgrading binutils helps?
> 
> Sorry, I just noticed that you are pretty aware of this bug
> (you actually opened the ticket) :-)

Yes, but I did not understand it would affect parisc, since the problem 
_seemed_ to be amd64-specific. But looking at the description, it might 
well be related.

However, I seem to have installed version 2.25.1-r1 that seems to be 
from Oct 3 2015 and thus is not likely to have this change.

There is also sys-devel/binutils-hppa64-2.25.1 that is probably used for 
the 64-bit kernel, but this is emerged Jul 6 2016 and packaged Sep 30 
2015.

In summary it seems my binutils last changed in July 2016, but 
4.8.0 kernel was compile on Oct 5 2016, with the same binutils as I am 
using now.

So, any other ideas?

-- 
Meelis Roos (mroos@linux.ee)
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> > > > > Command line for kernel: 'root=/dev/sda3 console=ttyS0 
> > > > > palo_kernel=2/vmlinux'
> > > > > Selected kernel: /vmlinux from partition 2
> > > > 
> > > > I'm missing here the information of the various sections
> > > > in the vmlinux file which the boot loader usually prints
> > > > here.
> > > 
> > > Well, I did not leave anything out AFAIK?
> > 
> > It seems palo can't read the vmlinux file (aka get's confused with the contents
> > and doesn't print the ELF section list).
> > 
> > Did you maybe used a recent binutils package?

Old binutils, but here is my vmlinux that does not boot (slightly larger 
than vmlinux-4.8.0):

http://kodu.ut.ee/~mroos/vmlinux-4.9.0-rc6-00240-gd8e435f

-- 
Meelis Roos (mroos@linux.ee)
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On 2016-11-28 1:37 PM, Meelis Roos wrote:
> Old binutils, but here is my vmlinux that does not boot (slightly larger
> than vmlinux-4.8.0):
Maybe compare ELF PHDRS and sections with working and non working 
kernels.  I think Helge
may have changed the placement of some stuff.

Dave

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On 28.11.2016 19:37, Meelis Roos wrote:
>>>>>> Command line for kernel: 'root=/dev/sda3 console=ttyS0 
>>>>>> palo_kernel=2/vmlinux'
>>>>>> Selected kernel: /vmlinux from partition 2
>>>>>
>>>>> I'm missing here the information of the various sections
>>>>> in the vmlinux file which the boot loader usually prints
>>>>> here.
>>>>
>>>> Well, I did not leave anything out AFAIK?
>>>
>>> It seems palo can't read the vmlinux file (aka get's confused with the contents
>>> and doesn't print the ELF section list).
>>>
>>> Did you maybe used a recent binutils package?
> 
> Old binutils, but here is my vmlinux that does not boot (slightly larger 
> than vmlinux-4.8.0):
> 
> http://kodu.ut.ee/~mroos/vmlinux-4.9.0-rc6-00240-gd8e435f

This kernel boots nicely for me on my c3000 machine:

Main Menu: Enter command > bo pri
Interact with IPL (Y, N, Q)?> y

Booting... 
Boot IO Dependent Code (IODC) revision 0


HARD Booted.
palo ipl 1.96 http://www.parisc-linux.org - Sun, 08 Oct 2016 22:40:31 +0100
Skipping extended partition 6 - beyond reach of IPL

Partition Start(MB) End(MB) Id Type
1               2      33   f0 Palo
2              34     157   83 ext2
5             159   134887   83 ext2

PALO(F0) partition contains:
    0/vmlinux64 17631904(0) bytes @ 0x140000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).Current command line:
2/vmlinux root=LABEL=ROOT rootfstype=ext4 initrd=2/initrd.img HOME=/ panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102
...
Current command line:
2/vmlinux-4.9.0-rc6-00240-gd8e435f root=LABEL=ROOT rootfstype=ext4 HOME=/ panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102
 0: 2/vmlinux-4.9.0-rc6-00240-gd8e435f
 1: root=LABEL=ROOT
 2: rootfstype=ext4
 3: HOME=/
 4: panic_timeout=60
 5: panic=-1
 6: console=ttyS0
 7: TERM=vt102

<#>    edit the numbered field
'b'    boot with this command line
'r'    restore command line
'l'    list dir
'x'    reset and reboot machine
? b

Command line for kernel: 'root=LABEL=ROOT rootfstype=ext4 HOME=/ panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-4.9.0-rc6-'
Selected kernel: /vmlinux-4.9.0-rc6-00240-gd8e435f from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 134688 mediaptr 0x1000
Segment 1 load 00121000 size 22272 mediaptr 0x22000
Segment 2 load 00200000 size 4456864 mediaptr 0x28000
Segment 3 load 00641000 size 1387492 mediaptr 0x469000
Segment 4 load 00800000 size 1084600 mediaptr 0x5bc000
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 4.9.0-rc6-00240-gd8e435f (mroos@a500) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #104 Sun Nov 27 16:30:20 EET 2016
unwind_init: start = 0x4075a444, end = 0x40793be4, entries = 14714
FP[0] enabled: Rev 1 Model 19
The 64-bit Kernel has started...
Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
bootconsole [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005dc0 00000481 00000000 00000002 777c3e84 100000f0 00000008 000000b2 000000b2
vers  00000301
CPUID vers 19 rev 11 (0x0000026b)
capabilities 0x7
model 9000/785/C3700
...

Helge

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From: Helge Deller <deller@gmx.de>
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Subject: Re: Aw: Re: parsic: strange boot crash on a500
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On 28.11.2016 19:05, Helge Deller wrote:
> On 28.11.2016 19:37, Meelis Roos wrote:
>>>>>>> Command line for kernel: 'root=/dev/sda3 console=ttyS0 
>>>>>>> palo_kernel=2/vmlinux'
>>>>>>> Selected kernel: /vmlinux from partition 2
>>>>>>
>>>>>> I'm missing here the information of the various sections
>>>>>> in the vmlinux file which the boot loader usually prints
>>>>>> here.
>>>>>
>>>>> Well, I did not leave anything out AFAIK?
>>>>
>>>> It seems palo can't read the vmlinux file (aka get's confused with the contents
>>>> and doesn't print the ELF section list).
>>>>
>>>> Did you maybe used a recent binutils package?
>>
>> Old binutils, but here is my vmlinux that does not boot (slightly larger 
>> than vmlinux-4.8.0):
>>
>> http://kodu.ut.ee/~mroos/vmlinux-4.9.0-rc6-00240-gd8e435f
> 
> This kernel boots nicely for me on my c3000 machine:
> 
> Main Menu: Enter command > bo pri
> Interact with IPL (Y, N, Q)?> y
> 
> Booting... 
> Boot IO Dependent Code (IODC) revision 0
> 
> 
> HARD Booted.
> palo ipl 1.96 http://www.parisc-linux.org - Sun, 08 Oct 2016 22:40:31 +0100
> Skipping extended partition 6 - beyond reach of IPL
> 
> Partition Start(MB) End(MB) Id Type
> 1               2      33   f0 Palo
> 2              34     157   83 ext2
> 5             159   134887   83 ext2
> 
> PALO(F0) partition contains:
>     0/vmlinux64 17631904(0) bytes @ 0x140000
> 
> Information: No console specified on kernel command line. This is normal.
> PALO will choose the console currently used by firmware (serial).Current command line:
> 2/vmlinux root=LABEL=ROOT rootfstype=ext4 initrd=2/initrd.img HOME=/ panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102

The only differences I currently see between your and my setup are:
1. My palo partition contains a vmlinux file (you need to add a vmlinux file to your /etc/palo.conf file and rerun "palo -v").
2. In my setup I didn't added "console=ttyS0". palo does that by itself if you run via serial console.

I'm not confident that those are the problem, but you may try...

Helge 


> ...
> Current command line:
> 2/vmlinux-4.9.0-rc6-00240-gd8e435f root=LABEL=ROOT rootfstype=ext4 HOME=/ panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102
>  0: 2/vmlinux-4.9.0-rc6-00240-gd8e435f
>  1: root=LABEL=ROOT
>  2: rootfstype=ext4
>  3: HOME=/
>  4: panic_timeout=60
>  5: panic=-1
>  6: console=ttyS0
>  7: TERM=vt102
> 
> <#>    edit the numbered field
> 'b'    boot with this command line
> 'r'    restore command line
> 'l'    list dir
> 'x'    reset and reboot machine
> ? b
> 
> Command line for kernel: 'root=LABEL=ROOT rootfstype=ext4 HOME=/ panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux-4.9.0-rc6-'
> Selected kernel: /vmlinux-4.9.0-rc6-00240-gd8e435f from partition 2
> ELF64 executable
> Entry 00100000 first 00100000 n 5
> Segment 0 load 00100000 size 134688 mediaptr 0x1000
> Segment 1 load 00121000 size 22272 mediaptr 0x22000
> Segment 2 load 00200000 size 4456864 mediaptr 0x28000
> Segment 3 load 00641000 size 1387492 mediaptr 0x469000
> Segment 4 load 00800000 size 1084600 mediaptr 0x5bc000
> Branching to kernel entry point 0x00100000.  If this is the last
> message you see, you may need to switch your console.  This is
> a common symptom -- search the FAQ and mailing list at parisc-linux.org
> 
> Linux version 4.9.0-rc6-00240-gd8e435f (mroos@a500) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #104 Sun Nov 27 16:30:20 EET 2016
> unwind_init: start = 0x4075a444, end = 0x40793be4, entries = 14714
> FP[0] enabled: Rev 1 Model 19
> The 64-bit Kernel has started...
> Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
> bootconsole [ttyB0] enabled
> Initialized PDC Console for debugging.
> Determining PDC firmware type: System Map.
> model 00005dc0 00000481 00000000 00000002 777c3e84 100000f0 00000008 000000b2 000000b2
> vers  00000301
> CPUID vers 19 rev 11 (0x0000026b)
> capabilities 0x7
> model 9000/785/C3700
> ...
> 
> Helge
> 

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From - Thu Nov 08 21:39:21 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: Re: Aw: Re: parsic: strange boot crash on a500
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> The only differences I currently see between your and my setup are:
> 1. My palo partition contains a vmlinux file (you need to add a vmlinux file to your /etc/palo.conf file and rerun "palo -v").

I pondered about that - what do you mean...

and then it dawned on me - I have wrong symlink under /boot. On most 
machines I have symlink named test that points to my latest test kernel, 
but on parisc I had default vmlinux since installerkenl worked out of 
the box with it. So it just worked, until I removed vmlinux and created 
"test" symlink by mistake whern testing 4.9-rc*. Now I recreated the 
vmlinux symlink and the new kernels just work.

So it was a bad user error my side, probably from staying up too late 
some day :)

However, palo seems to miss error handling in that case.

> 2. In my setup I didn't added "console=ttyS0". palo does that by itself if you run via serial console.

Yes, I removed it and serial console just keeps working.

Thank you!

-- 
Meelis Roos (mroos@linux.ee)
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Hi Meelis,

On 28.11.2016 21:23, Meelis Roos wrote:
>> The only differences I currently see between your and my setup are:
>> 1. My palo partition contains a vmlinux file (you need to add a vmlinux file to your /etc/palo.conf file and rerun "palo -v").
> 
> I pondered about that - what do you mean...

Inside the palo partition, a vmlinux & initrd file can be stored,
just in case if /boot isn't readable.
Those two files need to be configured in /etc/palo.conf with those parameters:
--recoverykernel=/boot/vmlinux.recovery
--ramdisk=/boot/initrd.recovery
Afterwards you need to run "palo -v" once.

When the IPL loader from palo is started, you can select those kernel/initrd files
via partition "0", e.g. 0/vmlinux and 0/initrd.
partition 1 is the palo partition, partition 2 is usually the /boot (ext2) partition.

It's a fallback solution for booting a system.
 
> and then it dawned on me - I have wrong symlink under /boot. On most 
> machines I have symlink named test that points to my latest test kernel, 
> but on parisc I had default vmlinux since installerkenl worked out of 
> the box with it. So it just worked, until I removed vmlinux and created 
> "test" symlink by mistake whern testing 4.9-rc*. Now I recreated the 
> vmlinux symlink and the new kernels just work.
> 
> So it was a bad user error my side, probably from staying up too late 
> some day :)
> 
> However, palo seems to miss error handling in that case.

Agreed, I'll try to fix that.

>> 2. In my setup I didn't added "console=ttyS0". palo does that by itself if you run via serial console.
> 
> Yes, I removed it and serial console just keeps working.

Ok.

> Thank you!

No problem.
Helge

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From - Thu Nov 08 21:39:21 2018
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Subject: [PATCH 19/39] Annotate hardware config module parameters in
 drivers/net/ethernet/
Date: Thu, 01 Dec 2016 12:32:09 +0000
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When the kernel is running in secure boot mode, we lock down the kernel to
prevent userspace from modifying the running kernel image.  Whilst this
includes prohibiting access to things like /dev/mem, it must also prevent
access by means of configuring driver modules in such a way as to cause a
device to access or modify the kernel image.

To this end, annotate module_param* statements that refer to hardware
configuration and indicate for future reference what type of parameter they
specify.  The parameter parser in the core sees this information and can
skip such parameters with an error message if the kernel is locked down.
The module initialisation then runs as normal, but just sees whatever the
default values for those parameters is.

Note that we do still need to do the module initialisation because some
drivers have viable defaults set in case parameters aren't specified and
some drivers support automatic configuration (e.g. PNP or PCI) in addition
to manually coded parameters.

This patch annotates drivers in drivers/net/ethernet/.

Suggested-by: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steffen Klassert <klassert@mathematik.tu-chemnitz.de>
cc: Jaroslav Kysela <perex@perex.cz>
cc: netdev@vger.kernel.org
cc: linux-parisc@vger.kernel.org
---

 drivers/net/ethernet/3com/3c509.c      |    2 +-
 drivers/net/ethernet/3com/3c59x.c      |    4 ++--
 drivers/net/ethernet/8390/ne.c         |    4 ++--
 drivers/net/ethernet/8390/smc-ultra.c  |    4 ++--
 drivers/net/ethernet/8390/wd.c         |    8 ++++----
 drivers/net/ethernet/amd/lance.c       |    6 +++---
 drivers/net/ethernet/amd/ni65.c        |    6 +++---
 drivers/net/ethernet/cirrus/cs89x0.c   |    6 +++---
 drivers/net/ethernet/dec/tulip/de4x5.c |    2 +-
 drivers/net/ethernet/hp/hp100.c        |    2 +-
 drivers/net/ethernet/realtek/atp.c     |    4 ++--
 drivers/net/ethernet/smsc/smc9194.c    |    4 ++--
 12 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/drivers/net/ethernet/3com/3c509.c b/drivers/net/ethernet/3com/3c509.c
index 91ada52f776b..33a6d67ee182 100644
--- a/drivers/net/ethernet/3com/3c509.c
+++ b/drivers/net/ethernet/3com/3c509.c
@@ -1369,7 +1369,7 @@ el3_resume(struct device *pdev)
 #endif /* CONFIG_PM */
 
 module_param(debug,int, 0);
-module_param_array(irq, int, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
 module_param(max_interrupt_work, int, 0);
 MODULE_PARM_DESC(debug, "debug level (0-6)");
 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index 9133e7926da5..d041e3c7c3e6 100644
--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -813,8 +813,8 @@ module_param(global_enable_wol, int, 0);
 module_param_array(enable_wol, int, NULL, 0);
 module_param(rx_copybreak, int, 0);
 module_param(max_interrupt_work, int, 0);
-module_param(compaq_ioaddr, int, 0);
-module_param(compaq_irq, int, 0);
+module_param_hw(compaq_ioaddr, int, ioport, 0);
+module_param_hw(compaq_irq, int, irq, 0);
 module_param(compaq_device_id, int, 0);
 module_param(watchdog, int, 0);
 module_param(global_use_mmio, int, 0);
diff --git a/drivers/net/ethernet/8390/ne.c b/drivers/net/ethernet/8390/ne.c
index c063b410a163..66f47987e2a2 100644
--- a/drivers/net/ethernet/8390/ne.c
+++ b/drivers/net/ethernet/8390/ne.c
@@ -74,8 +74,8 @@ static int bad[MAX_NE_CARDS];
 static u32 ne_msg_enable;
 
 #ifdef MODULE
-module_param_array(io, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
+module_param_hw_array(io, int, ioport, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
 module_param_array(bad, int, NULL, 0);
 module_param_named(msg_enable, ne_msg_enable, uint, (S_IRUSR|S_IRGRP|S_IROTH));
 MODULE_PARM_DESC(io, "I/O base address(es),required");
diff --git a/drivers/net/ethernet/8390/smc-ultra.c b/drivers/net/ethernet/8390/smc-ultra.c
index 139385dcdaa7..c5dbf6938a4e 100644
--- a/drivers/net/ethernet/8390/smc-ultra.c
+++ b/drivers/net/ethernet/8390/smc-ultra.c
@@ -562,8 +562,8 @@ static struct net_device *dev_ultra[MAX_ULTRA_CARDS];
 static int io[MAX_ULTRA_CARDS];
 static int irq[MAX_ULTRA_CARDS];
 
-module_param_array(io, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
+module_param_hw_array(io, int, ioport, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
 module_param_named(msg_enable, ultra_msg_enable, uint, (S_IRUSR|S_IRGRP|S_IROTH));
 MODULE_PARM_DESC(io, "I/O base address(es)");
 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
diff --git a/drivers/net/ethernet/8390/wd.c b/drivers/net/ethernet/8390/wd.c
index dd7d816bde52..e16deef661e3 100644
--- a/drivers/net/ethernet/8390/wd.c
+++ b/drivers/net/ethernet/8390/wd.c
@@ -504,10 +504,10 @@ static int irq[MAX_WD_CARDS];
 static int mem[MAX_WD_CARDS];
 static int mem_end[MAX_WD_CARDS];	/* for non std. mem size */
 
-module_param_array(io, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
-module_param_array(mem, int, NULL, 0);
-module_param_array(mem_end, int, NULL, 0);
+module_param_hw_array(io, int, ioport, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
+module_param_hw_array(mem, int, iomem, NULL, 0);
+module_param_hw_array(mem_end, int, iomem, NULL, 0);
 module_param_named(msg_enable, wd_msg_enable, uint, (S_IRUSR|S_IRGRP|S_IROTH));
 MODULE_PARM_DESC(io, "I/O base address(es)");
 MODULE_PARM_DESC(irq, "IRQ number(s) (ignored for PureData boards)");
diff --git a/drivers/net/ethernet/amd/lance.c b/drivers/net/ethernet/amd/lance.c
index abb1ba228b26..1b5603c30bd2 100644
--- a/drivers/net/ethernet/amd/lance.c
+++ b/drivers/net/ethernet/amd/lance.c
@@ -318,9 +318,9 @@ static int io[MAX_CARDS];
 static int dma[MAX_CARDS];
 static int irq[MAX_CARDS];
 
-module_param_array(io, int, NULL, 0);
-module_param_array(dma, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
+module_param_hw_array(io, int, ioport, NULL, 0);
+module_param_hw_array(dma, int, dma, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
 module_param(lance_debug, int, 0);
 MODULE_PARM_DESC(io, "LANCE/PCnet I/O base address(es),required");
 MODULE_PARM_DESC(dma, "LANCE/PCnet ISA DMA channel (ignored for some devices)");
diff --git a/drivers/net/ethernet/amd/ni65.c b/drivers/net/ethernet/amd/ni65.c
index cda53db75f17..8b2e4deefdd4 100644
--- a/drivers/net/ethernet/amd/ni65.c
+++ b/drivers/net/ethernet/amd/ni65.c
@@ -1228,9 +1228,9 @@ static void set_multicast_list(struct net_device *dev)
 #ifdef MODULE
 static struct net_device *dev_ni65;
 
-module_param(irq, int, 0);
-module_param(io, int, 0);
-module_param(dma, int, 0);
+module_param_hw(irq, int, irq, 0);
+module_param_hw(io, int, ioport, 0);
+module_param_hw(dma, int, dma, 0);
 MODULE_PARM_DESC(irq, "ni6510 IRQ number (ignored for some cards)");
 MODULE_PARM_DESC(io, "ni6510 I/O base address");
 MODULE_PARM_DESC(dma, "ni6510 ISA DMA channel (ignored for some cards)");
diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c
index c363b58552e9..424f62b28c63 100644
--- a/drivers/net/ethernet/cirrus/cs89x0.c
+++ b/drivers/net/ethernet/cirrus/cs89x0.c
@@ -1705,12 +1705,12 @@ static int use_dma;			/* These generate unused var warnings if ALLOW_DMA = 0 */
 static int dma;
 static int dmasize = 16;		/* or 64 */
 
-module_param(io, int, 0);
-module_param(irq, int, 0);
+module_param_hw(io, int, ioport, 0);
+module_param_hw(irq, int, irq, 0);
 module_param(debug, int, 0);
 module_param_string(media, media, sizeof(media), 0);
 module_param(duplex, int, 0);
-module_param(dma , int, 0);
+module_param_hw(dma , int, dma, 0);
 module_param(dmasize , int, 0);
 module_param(use_dma , int, 0);
 MODULE_PARM_DESC(io, "cs89x0 I/O base address");
diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index 6620fc861c47..9ba1a318916d 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -1015,7 +1015,7 @@ static int     compact_infoblock(struct net_device *dev, u_char count, u_char *p
 
 static int io=0x0;/* EDIT THIS LINE FOR YOUR CONFIGURATION IF NEEDED        */
 
-module_param(io, int, 0);
+module_param_hw(io, int, ioport, 0);
 module_param(de4x5_debug, int, 0);
 module_param(dec_only, int, 0);
 module_param(args, charp, 0);
diff --git a/drivers/net/ethernet/hp/hp100.c b/drivers/net/ethernet/hp/hp100.c
index 631dbc7b4dbb..eab44abb24ba 100644
--- a/drivers/net/ethernet/hp/hp100.c
+++ b/drivers/net/ethernet/hp/hp100.c
@@ -2968,7 +2968,7 @@ MODULE_DESCRIPTION("HP CASCADE Architecture Driver for 100VG-AnyLan Network Adap
 #define HP100_DEVICES 5
 /* Parameters set by insmod */
 static int hp100_port[HP100_DEVICES] = { 0, [1 ... (HP100_DEVICES-1)] = -1 };
-module_param_array(hp100_port, int, NULL, 0);
+module_param_hw_array(hp100_port, int, ioport, NULL, 0);
 
 /* List of devices */
 static struct net_device *hp100_devlist[HP100_DEVICES];
diff --git a/drivers/net/ethernet/realtek/atp.c b/drivers/net/ethernet/realtek/atp.c
index 5cb96785fb63..619938322915 100644
--- a/drivers/net/ethernet/realtek/atp.c
+++ b/drivers/net/ethernet/realtek/atp.c
@@ -151,8 +151,8 @@ MODULE_LICENSE("GPL");
 
 module_param(max_interrupt_work, int, 0);
 module_param(debug, int, 0);
-module_param_array(io, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
+module_param_hw_array(io, int, ioport, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
 module_param_array(xcvr, int, NULL, 0);
 MODULE_PARM_DESC(max_interrupt_work, "ATP maximum events handled per interrupt");
 MODULE_PARM_DESC(debug, "ATP debug level (0-7)");
diff --git a/drivers/net/ethernet/smsc/smc9194.c b/drivers/net/ethernet/smsc/smc9194.c
index d496888b85d3..1bfae24066ce 100644
--- a/drivers/net/ethernet/smsc/smc9194.c
+++ b/drivers/net/ethernet/smsc/smc9194.c
@@ -1502,8 +1502,8 @@ static void smc_set_multicast_list(struct net_device *dev)
 static struct net_device *devSMC9194;
 MODULE_LICENSE("GPL");
 
-module_param(io, int, 0);
-module_param(irq, int, 0);
+module_param_hw(io, int, ioport, 0);
+module_param_hw(irq, int, irq, 0);
 module_param(ifport, int, 0);
 MODULE_PARM_DESC(io, "SMC 99194 I/O base address");
 MODULE_PARM_DESC(irq, "SMC 99194 IRQ number");



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Hi Meelis,

On 28.11.2016 20:41, Helge Deller wrote:
>> and then it dawned on me - I have wrong symlink under /boot. On most 
>> machines I have symlink named test that points to my latest test kernel, 
>> but on parisc I had default vmlinux since installerkenl worked out of 
>> the box with it. So it just worked, until I removed vmlinux and created 
>> "test" symlink by mistake whern testing 4.9-rc*. Now I recreated the 
>> vmlinux symlink and the new kernels just work.
>>
>> So it was a bad user error my side, probably from staying up too late 
>> some day :)
>>
>> However, palo seems to miss error handling in that case.
> 
> Agreed, I'll try to fix that.

I just tried to fix this problem, but could not reproduce it.
Can you explain exactly how your symlinks looked like ?
E.g. a "ls -la" output of /boot ?
Were they hardlinks ?
Can you still reproduce the problem with latest palo 1.96 ?

Thanks!
Helge
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> >> and then it dawned on me - I have wrong symlink under /boot. On most 
> >> machines I have symlink named test that points to my latest test kernel, 
> >> but on parisc I had default vmlinux since installerkenl worked out of 
> >> the box with it. So it just worked, until I removed vmlinux and created 
> >> "test" symlink by mistake whern testing 4.9-rc*. Now I recreated the 
> >> vmlinux symlink and the new kernels just work.
> >>
> >> So it was a bad user error my side, probably from staying up too late 
> >> some day :)
> >>
> >> However, palo seems to miss error handling in that case.
> > 
> > Agreed, I'll try to fix that.
> 
> I just tried to fix this problem, but could not reproduce it.
> Can you explain exactly how your symlinks looked like ?

vmlinux and vmlinux.old are symlinks in /boot, with no path, just 
pointing to vmlinux-... files. In the problematic case, there was no 
vmlinux symlink, just "test" symlink that palo did not know anything 
about.

> E.g. a "ls -la" output of /boot ?

Current one is

-rw-r--r-- 1 root root 1037705 Jul  1  2013 System.map-3.10.0
-rw-r--r-- 1 root root 1050543 Oct  8  2013 System.map-3.11.0
-rw-r--r-- 1 root root 1046172 Jun  9  2014 System.map-3.15.0
-rw-r--r-- 1 root root 1053608 Aug 12  2014 System.map-3.16.0
-rw-r--r-- 1 root root 1068795 Dec  8  2014 System.map-3.18.0
-rw-r--r-- 1 root root 1080097 Mar  9  2015 System.map-3.19.0
-rw-r--r-- 1 root root 1083003 Apr 15  2015 System.map-4.0.0
-rw-r--r-- 1 root root 1087981 Jun 26  2015 System.map-4.1.0
-rw-r--r-- 1 root root 1119899 Sep  1  2015 System.map-4.2.0
-rw-r--r-- 1 root root  777767 Jul 29 19:23 System.map-4.7.0
-rw-r--r-- 1 root root  783238 Oct  5 20:50 System.map-4.8.0
-rw-r--r-- 1 root root  792511 Nov 25 23:24 System.map-4.9.0-rc5-00297-g20afa6e
-rw-r--r-- 1 root root  798408 Nov 27 21:25 System.map-4.9.0-rc6-00240-gd8e435f
-rw-r--r-- 1 root root  798408 Nov 28 20:39 System.map-4.9.0-rc7
-rw-r--r-- 1 root root  798539 Dec  5 09:39 System.map-4.9.0-rc7-00198-g0cb65c8
-rw-r--r-- 1 root root       0 Jun  2  2014 System.map-dummy
-rw-r--r-- 1 root root   33032 Jul  1  2013 config-3.10.0
-rw-r--r-- 1 root root   33555 Oct  8  2013 config-3.11.0
-rw-r--r-- 1 root root   34596 Aug 12  2014 config-3.16.0
-rw-r--r-- 1 root root   35356 Dec  8  2014 config-3.18.0
-rw-r--r-- 1 root root   35788 Mar  9  2015 config-3.19.0
-rw-r--r-- 1 root root   35945 Apr 15  2015 config-4.0.0
-rw-r--r-- 1 root root   35930 Jun 26  2015 config-4.1.0
-rw-r--r-- 1 root root   32036 Sep  1  2015 config-4.2.0
-rw-r--r-- 1 root root   34196 Jul 29 19:23 config-4.7.0
-rw-r--r-- 1 root root   34342 Oct  5 20:50 config-4.8.0
-rw-r--r-- 1 root root   34725 Nov 25 23:24 config-4.9.0-rc5-00297-g20afa6e
-rw-r--r-- 1 root root   35044 Nov 27 21:25 config-4.9.0-rc6-00240-gd8e435f
-rw-r--r-- 1 root root   35044 Nov 28 20:39 config-4.9.0-rc7
-rw-r--r-- 1 root root   35076 Dec  5 09:39 config-4.9.0-rc7-00198-g0cb65c8
drwx------ 2 root root   12288 Nov  6  2012 lost+found
lrwxrwxrwx 1 root root      32 Dec  5 09:39 vmlinux -> vmlinux-4.9.0-rc7-00198-g0cb65c8
-rw-r--r-- 1 root root 7177406 Jul  1  2013 vmlinux-3.10.0
-rw-r--r-- 1 root root 7267400 Oct  8  2013 vmlinux-3.11.0
-rw-r--r-- 1 root root 7620429 Aug 12  2014 vmlinux-3.16.0
-rw-r--r-- 1 root root 7749731 Dec  8  2014 vmlinux-3.18.0
-rw-r--r-- 1 root root 7795213 Mar  9  2015 vmlinux-3.19.0
-rw-r--r-- 1 root root 7815201 Apr 15  2015 vmlinux-4.0.0
-rw-r--r-- 1 root root 7846008 Jun 26  2015 vmlinux-4.1.0
-rw-r--r-- 1 root root 8022604 Sep  1  2015 vmlinux-4.2.0
-rw-r--r-- 1 root root 7827216 Jul 29 19:23 vmlinux-4.7.0
-rw-r--r-- 1 root root 7882632 Oct  5 20:50 vmlinux-4.8.0
-rw-r--r-- 1 root root 8022800 Nov 25 23:24 vmlinux-4.9.0-rc5-00297-g20afa6e
-rw-r--r-- 1 root root 8071224 Nov 27 21:25 vmlinux-4.9.0-rc6-00240-gd8e435f
-rw-r--r-- 1 root root 8071224 Nov 28 20:39 vmlinux-4.9.0-rc7
-rw-r--r-- 1 root root 8071400 Dec  5 09:39 vmlinux-4.9.0-rc7-00198-g0cb65c8
lrwxrwxrwx 1 root root      17 Nov 28 20:39 vmlinux.old -> vmlinux-4.9.0-rc7

palo.conf:

# Please read the palo --help output for more info
# Non-commented lines are treated as command line arguments

--commandline=2/vmlinux root=/dev/sda3
--init-partitioned=/dev/sda

#Uncomment this if you want a rescue kernel
#--recoverykernel=/boot/vmlinux.old


> Were they hardlinks ?

No.

> Can you still reproduce the problem with latest palo 1.96 ?

Yes - just did "rm vmlinux" from the above state and rebooted and it 
crashed like before.

-- 
Meelis Roos (mroos@linux.ee)
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I noticed that locale-gen fails to work on my gentoo. Before reporting 
to getnoo I tried to understand whether there is something specific to 
parisc and here is the relevant part of strace from localedef 
invocation:

1761  open("//usr/lib/locale/locale-archive.yvHI9a", O_RDWR|O_CREAT|O_EXCL, 0600) = 3
1761  write(3, "\336\2\1\t\0\0\0\0\0\0\0008\0\0\0\0\0\0\3\213\0\0*\274\0\0\0\0\0\0\35L"..., 56) = 56
1761  ftruncate64(3, 103860)            = 0
1761  mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0xd79bd000
1761  mmap2(0xd7c00000, 103860, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument)
1761  unlink("//usr/lib/locale/locale-archive.yvHI9a") = 0
1761  write(2, "cannot map archive header", 25) = 25
1761  write(2, ": Invalid argument", 18) = 18
1761  write(2, "\n", 1)                 = 1
1761  exit_group(1)                     = ?

Do I read it correctly that it creates PROT_NONE mapping on file opened 
O_RDWR, then tries to create a PROT_READ|PROT_WRITE mapping from the 
same file at fixed location and fails?

Why should it fail - because the fixed location is not suitable?

-- 
Meelis Roos (mroos@linux.ee)
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Hi,

On Mon, Dec 05, 2016 at 01:36:17PM +0200, Meelis Roos wrote:
> I noticed that locale-gen fails to work on my gentoo. Before reporting 
> to getnoo I tried to understand whether there is something specific to 
> parisc and here is the relevant part of strace from localedef 
> invocation:
> 
> 1761  open("//usr/lib/locale/locale-archive.yvHI9a", O_RDWR|O_CREAT|O_EXCL, 0600) = 3
> 1761  write(3, "\336\2\1\t\0\0\0\0\0\0\0008\0\0\0\0\0\0\3\213\0\0*\274\0\0\0\0\0\0\35L"..., 56) = 56
> 1761  ftruncate64(3, 103860)            = 0
> 1761  mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0xd79bd000
> 1761  mmap2(0xd7c00000, 103860, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument)
> 1761  unlink("//usr/lib/locale/locale-archive.yvHI9a") = 0
> 1761  write(2, "cannot map archive header", 25) = 25
> 1761  write(2, ": Invalid argument", 18) = 18
> 1761  write(2, "\n", 1)                 = 1
> 1761  exit_group(1)                     = ?
> 
> Do I read it correctly that it creates PROT_NONE mapping on file opened 
> O_RDWR, then tries to create a PROT_READ|PROT_WRITE mapping from the 
> same file at fixed location and fails?
> 
> Why should it fail - because the fixed location is not suitable?

This is known longstanding issue: https://sourceware.org/bugzilla/show_bug.cgi?id=19838

A.
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: mmap problem in localedef
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On 2016-12-05 1:10 PM, Aaro Koskinen wrote:
> Hi,
>
> On Mon, Dec 05, 2016 at 01:36:17PM +0200, Meelis Roos wrote:
>> I noticed that locale-gen fails to work on my gentoo. Before reporting
>> to getnoo I tried to understand whether there is something specific to
>> parisc and here is the relevant part of strace from localedef
>> invocation:
>>
>> 1761  open("//usr/lib/locale/locale-archive.yvHI9a", O_RDWR|O_CREAT|O_EXCL, 0600) = 3
>> 1761  write(3, "\336\2\1\t\0\0\0\0\0\0\0008\0\0\0\0\0\0\3\213\0\0*\274\0\0\0\0\0\0\35L"..., 56) = 56
>> 1761  ftruncate64(3, 103860)            = 0
>> 1761  mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0xd79bd000
>> 1761  mmap2(0xd7c00000, 103860, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument)
>> 1761  unlink("//usr/lib/locale/locale-archive.yvHI9a") = 0
>> 1761  write(2, "cannot map archive header", 25) = 25
>> 1761  write(2, ": Invalid argument", 18) = 18
>> 1761  write(2, "\n", 1)                 = 1
>> 1761  exit_group(1)                     = ?
>>
>> Do I read it correctly that it creates PROT_NONE mapping on file opened
>> O_RDWR, then tries to create a PROT_READ|PROT_WRITE mapping from the
>> same file at fixed location and fails?
>>
>> Why should it fail - because the fixed location is not suitable?
> This is known longstanding issue: https://sourceware.org/bugzilla/show_bug.cgi?id=19838
But why has it come back?  What kernel and glibc versions are you 
using?  This patch was supposed
to have fixed issue:
http://marc.info/?l=git-commits-head&m=138617700412279&w=2

I think the local-shmlba.diff patch was removed but I can't check at the 
moment.
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725508

Dave
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John David Anglin  dave.anglin@bell.net

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From - Thu Nov 08 21:39:22 2018
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Subject: Re: mmap problem in localedef
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> > > Do I read it correctly that it creates PROT_NONE mapping on file opened
> > > O_RDWR, then tries to create a PROT_READ|PROT_WRITE mapping from the
> > > same file at fixed location and fails?
> > >
> > > Why should it fail - because the fixed location is not suitable?
> > This is known longstanding issue:
> > https://sourceware.org/bugzilla/show_bug.cgi?id=19838
> But why has it come back?  What kernel and glibc versions are you using?  This

sys-libs/glibc-2.22-r4 on Gentoo, for May  2  2016 (the default for 
hppa on Gentoo).

> patch was supposed
> to have fixed issue:
> http://marc.info/?l=git-commits-head&m=138617700412279&w=2
> 
> I think the local-shmlba.diff patch was removed but I can't check at the
> moment.
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725508

Should have been upstreamed in 2014?

-- 
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From - Thu Nov 08 21:39:22 2018
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
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Subject: Re: mmap problem in localedef
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Hi,

On Mon, Dec 05, 2016 at 01:49:05PM -0500, John David Anglin wrote:
> On 2016-12-05 1:10 PM, Aaro Koskinen wrote:
> > On Mon, Dec 05, 2016 at 01:36:17PM +0200, Meelis Roos wrote:
> > This is known longstanding issue: https://sourceware.org/bugzilla/show_bug.cgi?id=19838
> But why has it come back?  What kernel and glibc versions are you using?
> This patch was supposed
> to have fixed issue:
> http://marc.info/?l=git-commits-head&m=138617700412279&w=2

I think glibc fix is also needed.

> I think the local-shmlba.diff patch was removed but I can't check at the
> moment.
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725508

I use 4.9-rcX and glibc 2.24 with patches from Gentoo branch:

https://sourceware.org/git/?p=glibc.git;a=shortlog;h=refs/heads/gentoo/2.24

I guess Debian is carrying some bug fix(es) missing from upstream...

A.
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From - Thu Nov 08 21:39:22 2018
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On Mon, 5 Dec 2016 23:12:38 +0200 (EET)
Meelis Roos <mroos@linux.ee> wrote:

> > I think the local-shmlba.diff patch was removed but I can't check
> > at the moment.
> > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725508  

Perhaps Gentoo dropped that patch at some glibc version bump?

> Should have been upstreamed in 2014?

That precisely how Debian does not do and has never done things. Sadly.


     jer
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On 2016-12-05 3:58 PM, Aaro Koskinen wrote:
> I use 4.9-rcX and glibc 2.24 with patches from Gentoo branch:
>
> https://sourceware.org/git/?p=glibc.git;a=shortlog;h=refs/heads/gentoo/2.24
>
> I guess Debian is carrying some bug fix(es) missing from upstream...
Yes.  However the trunk is much closer to being usable than it has been 
for some time thanks
to Aurelian Jarno and Mike Frysinger.  Most recently, we have resolved 
the syscall cancellation
bug that causes a number of tests to fail.  It fixes unwinding during 
syscall cancellation.

I'll post the current Debian patch set for hppa tonight and maybe we can 
consolidate.
Current test results can be seen in this build log for 2.24:
https://buildd.debian.org/status/fetch.php?pkg=glibc&arch=hppa&ver=2.24-7&stamp=1480210404

Dave

-- 
John David Anglin  dave.anglin@bell.net

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On 2016-12-05, at 4:17 PM, John David Anglin wrote:

> I'll post the current Debian patch set for hppa tonight and maybe we =
can consolidate.

I believe the two hppa specific patches that gentoo has are now =
installed upstream.

Here is current debian patch set for 2.24.  I believe =
cvs-atomic-machine.diff  has been applied.  The 'submitted-*'
patches have been submitted but not yet applied upstream.

There is one small bit of the _STACK_GROWS_UP patch that wasn't =
installed upstream.  It fixes a
testsuite regression.

The submitted-gmon-start.diff patch removes __gmon_start__ from shared =
libraries.  It presence breaks
--as-needed handling in the linker.  However, it's removal is a bit =
tricky and can result in broken packages
needing rebuilding.  This can be bad if the package happens to be the =
compiler or other crucial package.
Essentially everything has been rebuilt on debian.

We still have a change to SHMLBA which affects non standard page sizes.

Dave
--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-30-163483931
Content-Disposition: attachment;
	filename=submitted-sysdeps-cancel.diff
Content-Type: application/octet-stream;
	name="submitted-sysdeps-cancel.diff"
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diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h b/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
index cafc752..f239408 100644
--- a/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
+++ b/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
@@ -62,12 +62,11 @@
 	ENTRY (__##syscall_name##_nocancel)				\
 	DOARGS_##args					ASM_LINE_SEP	\
 	stwm TREG, 64(%sp)				ASM_LINE_SEP	\
+	.cfi_def_cfa_offset -64				ASM_LINE_SEP	\
 	.cfi_offset TREG, 0				ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	\
 	stw %sp, -4(%sp)				ASM_LINE_SEP	\
-	.cfi_offset 30, -4				ASM_LINE_SEP	\
 	stw %r19, -32(%sp)				ASM_LINE_SEP	\
-	.cfi_offset 19, -32				ASM_LINE_SEP	\
+	.cfi_offset 19, 32				ASM_LINE_SEP	\
 	/* Save r19 */					ASM_LINE_SEP	\
 	SAVE_PIC(TREG)					ASM_LINE_SEP	\
 	/* Do syscall, delay loads # */			ASM_LINE_SEP	\
@@ -91,21 +90,19 @@ L(pre_nc_end):						ASM_LINE_SEP	\
 	/* No need to LOAD_PIC */			ASM_LINE_SEP	\
 	/* Undo frame */				ASM_LINE_SEP	\
 	ldwm -64(%sp),TREG				ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	\
 	/* Restore rp before exit */			ASM_LINE_SEP	\
 	ldw -20(%sp), %rp				ASM_LINE_SEP	\
-	.cfi_restore 2					ASM_LINE_SEP	\
 	ret						ASM_LINE_SEP	\
 	END(__##syscall_name##_nocancel)		ASM_LINE_SEP	\
 	/**********************************************/ASM_LINE_SEP	\
 	ENTRY (name)							\
 	DOARGS_##args					ASM_LINE_SEP	\
 	stwm TREG, 64(%sp)				ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	\
+	.cfi_def_cfa_offset -64				ASM_LINE_SEP	\
+	.cfi_offset TREG, 0				ASM_LINE_SEP	\
 	stw %sp, -4(%sp)				ASM_LINE_SEP	\
-	.cfi_offset 30, -4				ASM_LINE_SEP	\
 	stw %r19, -32(%sp)				ASM_LINE_SEP	\
-	.cfi_offset 19, -32				ASM_LINE_SEP	\
+	.cfi_offset 19, 32				ASM_LINE_SEP	\
 	/* Done setting up frame, continue... */	ASM_LINE_SEP	\
 	SINGLE_THREAD_P					ASM_LINE_SEP	\
 	cmpib,<>,n 0,%ret0,L(pseudo_cancel)		ASM_LINE_SEP	\
@@ -168,40 +165,32 @@ L(pre_end):						ASM_LINE_SEP	\
 	/* No need to LOAD_PIC */			ASM_LINE_SEP	\
 	/* Undo frame */				ASM_LINE_SEP	\
 	ldwm -64(%sp),TREG				ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	\
 	/* Restore rp before exit */			ASM_LINE_SEP	\
-	ldw -20(%sp), %rp				ASM_LINE_SEP	\
-	.cfi_restore 2					ASM_LINE_SEP
+	ldw -20(%sp), %rp				ASM_LINE_SEP
 
 /* Save arguments into our frame */
 # define PUSHARGS_0	/* nothing to do */
 # define PUSHARGS_1	PUSHARGS_0 stw %r26, -36(%sr0,%sp)	ASM_LINE_SEP	\
-			.cfi_offset 26, -36			ASM_LINE_SEP
+			.cfi_offset 26, 28			ASM_LINE_SEP
 # define PUSHARGS_2	PUSHARGS_1 stw %r25, -40(%sr0,%sp)	ASM_LINE_SEP	\
-			.cfi_offset 25, -40			ASM_LINE_SEP
+			.cfi_offset 25, 24			ASM_LINE_SEP
 # define PUSHARGS_3	PUSHARGS_2 stw %r24, -44(%sr0,%sp)	ASM_LINE_SEP	\
-			.cfi_offset 24, -44			ASM_LINE_SEP
+			.cfi_offset 24, 20			ASM_LINE_SEP
 # define PUSHARGS_4	PUSHARGS_3 stw %r23, -48(%sr0,%sp)	ASM_LINE_SEP	\
-			.cfi_offset 23, -48			ASM_LINE_SEP
+			.cfi_offset 23, 16			ASM_LINE_SEP
 # define PUSHARGS_5	PUSHARGS_4 stw %r22, -52(%sr0,%sp)	ASM_LINE_SEP	\
-			.cfi_offset 22, -52			ASM_LINE_SEP
+			.cfi_offset 22, 12			ASM_LINE_SEP
 # define PUSHARGS_6	PUSHARGS_5 stw %r21, -56(%sr0,%sp)	ASM_LINE_SEP	\
-			.cfi_offset 21, -56			ASM_LINE_SEP
+			.cfi_offset 21, 8			ASM_LINE_SEP
 
 /* Bring them back from the stack */
 # define POPARGS_0	/* nothing to do */
-# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	ASM_LINE_SEP	\
-			.cfi_restore 26				ASM_LINE_SEP
-# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	ASM_LINE_SEP	\
-			.cfi_restore 25				ASM_LINE_SEP
-# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	ASM_LINE_SEP	\
-			.cfi_restore 24				ASM_LINE_SEP
-# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	ASM_LINE_SEP	\
-			.cfi_restore 23				ASM_LINE_SEP
-# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	ASM_LINE_SEP	\
-			.cfi_restore 22				ASM_LINE_SEP
-# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	ASM_LINE_SEP	\
-			.cfi_restore 21				ASM_LINE_SEP
+# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	ASM_LINE_SEP
+# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	ASM_LINE_SEP
+# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	ASM_LINE_SEP
+# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	ASM_LINE_SEP
+# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	ASM_LINE_SEP
+# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	ASM_LINE_SEP
 
 # if IS_IN (libpthread)
 #  ifdef PIC
diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep.h b/sysdeps/unix/sysv/linux/hppa/sysdep.h
index b459f0a..00cb366 100644
--- a/sysdeps/unix/sysv/linux/hppa/sysdep.h
+++ b/sysdeps/unix/sysv/linux/hppa/sysdep.h
@@ -49,11 +49,9 @@
    to another function */
 #define TREG 4
 #define SAVE_PIC(SREG) \
-	copy %r19, SREG ASM_LINE_SEP	\
-	.cfi_register 19, SREG
+	copy %r19, SREG
 #define LOAD_PIC(LREG) \
-	copy LREG , %r19 ASM_LINE_SEP	\
-	.cfi_restore 19
+	copy LREG , %r19
 /* Inline assembly defines */
 #define TREG_ASM "%r4" /* Cant clobber r3, it holds framemarker */
 #define SAVE_ASM_PIC	"       copy %%r19, %" TREG_ASM "\n"
@@ -292,12 +290,11 @@
 #define DO_CALL(syscall_name, args)				\
 	/* Create a frame */			ASM_LINE_SEP	\
 	stwm TREG, 64(%sp)			ASM_LINE_SEP	\
+	.cfi_def_cfa_offset -64			ASM_LINE_SEP	\
 	.cfi_offset TREG, 0			ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset 64		ASM_LINE_SEP	\
 	stw %sp, -4(%sp)			ASM_LINE_SEP	\
-	.cfi_offset 30, -4			ASM_LINE_SEP	\
 	stw %r19, -32(%sp)			ASM_LINE_SEP	\
-	.cfi_offset 19, -32			ASM_LINE_SEP	\
+	.cfi_offset 19, 32			ASM_LINE_SEP	\
 	/* Save r19 */				ASM_LINE_SEP	\
 	SAVE_PIC(TREG)				ASM_LINE_SEP	\
 	/* Do syscall, delay loads # */		ASM_LINE_SEP	\
@@ -320,10 +317,8 @@
 L(pre_end):					ASM_LINE_SEP	\
 	/* Restore our frame, restoring TREG */	ASM_LINE_SEP	\
 	ldwm -64(%sp), TREG			ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset -64		ASM_LINE_SEP	\
 	/* Restore return pointer */		ASM_LINE_SEP	\
-	ldw -20(%sp),%rp			ASM_LINE_SEP	\
-	.cfi_restore 2				ASM_LINE_SEP
+	ldw -20(%sp),%rp			ASM_LINE_SEP
 
 /* We do nothing with the return, except hand it back to someone else */
 #undef  DO_CALL_NOERRNO

--Apple-Mail-30-163483931
Content-Disposition: attachment;
	filename=submitted-setcontext.diff
Content-Type: application/octet-stream;
	name="submitted-setcontext.diff"
Content-Transfer-Encoding: 7bit

Index: glibc-2.22/sysdeps/unix/sysv/linux/hppa/setcontext.S
===================================================================
--- glibc-2.22.orig/sysdeps/unix/sysv/linux/hppa/setcontext.S
+++ glibc-2.22/sysdeps/unix/sysv/linux/hppa/setcontext.S
@@ -141,7 +141,7 @@ ENTRY(__setcontext)
 
 	/* No further context available. Exit now.  */
 	bl	HIDDEN_JUMPTARGET(exit), %r2
-	ldi	-1, %r26
+	ldi	0, %r26
 
 
 .Lerror:

--Apple-Mail-30-163483931
Content-Disposition: attachment;
	filename=submitted-gmon-start.diff
Content-Type: application/octet-stream;
	name="submitted-gmon-start.diff"
Content-Transfer-Encoding: 7bit

2015-11-15  Helge Deller  <deller@gmx.de>
	    John David Anglin  <danglin@gcc.gnu.org>

	PR libc/19170
	* sysdeps/hppa/crti.S (gmon_initializer): New.  Use .init_array support
	to call gmon_initializer.  Only call __gmon_start__ when symbol is
	defined at runtime.
	* sysdeps/hppa/crtn.S (__gmon_start__): Delete.
	* sysdeps/hppa/dl-lookupcfg.h (DL_FIXUP_MAKE_VALUE): Provide null
	function descriptor when MAP argument is null.
	* sysdeps/hppa/dl-trampoline.S (_dl_runtime_resolve): Return directly
	to previous function when function is undefined.

diff --git a/sysdeps/hppa/crti.S b/sysdeps/hppa/crti.S
index 98f1af5..568a999 100644
--- a/sysdeps/hppa/crti.S
+++ b/sysdeps/hppa/crti.S
@@ -49,6 +49,95 @@
 # define PREINIT_FUNCTION_WEAK 1
 #endif
 
+#if PREINIT_FUNCTION_WEAK
+	weak_extern (PREINIT_FUNCTION)
+#else
+	.hidden PREINIT_FUNCTION
+#endif
+
+
+/* If we have working .init_array support, we want to keep the .init
+   section empty (apart from the mandatory prologue/epilogue.  This
+   ensures that the default unwind conventions (return-pointer in b0,
+   frame state in ar.pfs, etc.)  will do the Right Thing.  To ensure
+   an empty .init section, we register gmon_initializer() via the
+   .init_array.
+
+    --davidm 02/10/29 */
+
+#if PREINIT_FUNCTION_WEAK
+/* This blob of assembly code is one simple C function:
+
+static void
+__attribute__ ((used))
+gmon_initializer (void)
+{
+  extern void weak_function __gmon_start__ (void);
+
+  if (__gmon_start__)
+    (*__gmon_start__)();
+}
+
+In a final executable, PLABEL32 relocations for function pointers are
+resolved at link time.  Typically, binutils/ld resolves __gmon_start__
+using an external shared library.  __gmon_start__ is always called if
+it is found at link time.  If __gmon_start__ is not found at runtime
+due to a library update, then the function pointer will point at a null
+function descriptor and calling it will cause a segmentation fault.
+So, we call __canonicalize_funcptr_for_compare to obtain the canonicalized
+address of __gmon_start__ and skip calling __gmon_start__ if it is zero.
+
+ */
+	.type __canonicalize_funcptr_for_compare,@function
+	.type $$dyncall,@function
+
+	.section .data.rel.ro,"aw",@progbits
+	.align 4
+.LC0:
+	.type __gmon_start__,@function
+	.word P%__gmon_start__
+
+	.text
+	.align 4
+	.type gmon_initializer,@function
+gmon_initializer:
+	.PROC
+	.CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=4
+	.ENTRY
+	stw %r2,-20(%r30)
+	stwm %r4,64(%r30)
+	stw %r3,-60(%r30)
+	addil LT'.LC0,%r19
+	ldw RT'.LC0(%r1),%r28
+	ldw 0(%r28),%r3
+	comib,= 0,%r3,1f
+	copy %r19,%r4
+	stw %r19,-32(%r30)
+	bl __canonicalize_funcptr_for_compare,%r2
+	copy %r3,%r26
+	comib,= 0,%r28,1f
+	copy %r4,%r19
+	copy %r3,%r22
+	.CALL ARGW0=GR
+	bl $$dyncall,%r31
+	copy %r31,%r2
+1:
+	ldw -84(%r30),%r2
+	ldw -60(%r30),%r3
+	bv %r0(%r2)
+	ldwm -64(%r30),%r4
+	.EXIT
+	.PROCEND
+	.size gmon_initializer, .-gmon_initializer
+
+# undef PREINIT_FUNCTION
+# define PREINIT_FUNCTION gmon_initializer
+#endif
+
+	.section .init_array, "aw"
+	.word P% PREINIT_FUNCTION
+
+
 /* _init prologue.  */
 	.section .init, "ax", %progbits
 	.align 4
@@ -58,14 +147,6 @@ _init:
 	stw	%rp,-20(%sp)
 	stwm	%r4,64(%sp)
 	stw	%r19,-32(%sp)
-#if PREINIT_FUNCTION_WEAK
-	bl	PREINIT_FUNCTION,%rp
-	copy	%r19,%r4	/* delay slot */
-#else
-	bl	PREINIT_FUNCTION,%rp
-	copy	%r19,%r4	/* delay slot */
-#endif
-	copy	%r4,%r19
 
 /* _fini prologue.  */
         .section .fini,"ax",%progbits
diff --git a/sysdeps/hppa/crtn.S b/sysdeps/hppa/crtn.S
index e0d345f..a410425 100644
--- a/sysdeps/hppa/crtn.S
+++ b/sysdeps/hppa/crtn.S
@@ -38,27 +38,6 @@
 /* crtn.S puts function epilogues in the .init and .fini sections
    corresponding to the prologues in crti.S. */
 
-/* Note that we cannot have a weak undefined __gmon_start__, because
-   that would require this to be PIC, and the linker is currently not
-   able to generate a proper procedure descriptor for _init.  Sad but
-   true.  Anyway, HPPA is one of those horrible architectures where
-   making the comparison and indirect call is quite expensive (see the
-   comment in sysdeps/generic/initfini.c). */
-        .text
-        .align 4
-        .weak   __gmon_start__
-        .type    __gmon_start__,@function
-__gmon_start__:
-	.proc
-	.callinfo
-	.entry
-        bv,n %r0(%r2)
-	.exit
-	.procend
-
-/* Here is the tail end of _init.  We put __gmon_start before this so
-   that the assembler creates the .PARISC.unwind section for us, ie.
-   with the right attributes.  */
 	.section .init, "ax", @progbits
 	ldw	-84(%sp),%rp
 	copy	%r4,%r19
diff --git a/sysdeps/hppa/dl-lookupcfg.h b/sysdeps/hppa/dl-lookupcfg.h
index c36928c..dea1809 100644
--- a/sysdeps/hppa/dl-lookupcfg.h
+++ b/sysdeps/hppa/dl-lookupcfg.h
@@ -75,7 +75,9 @@ void attribute_hidden _dl_unmap (struct link_map *map);
 
 /* Construct a fixup value from the address and linkmap */
 #define DL_FIXUP_MAKE_VALUE(map, addr) \
-   ((struct fdesc) { (addr), (map)->l_info[DT_PLTGOT]->d_un.d_ptr })
+  (map) ? ((struct fdesc) { (addr), (map)->l_info[DT_PLTGOT]->d_un.d_ptr }) \
+	: ((struct fdesc) { 0, 0 })
+
 
 /* Extract the code address from a fixup value */
 #define DL_FIXUP_VALUE_CODE_ADDR(value) ((value).ip)
diff --git a/sysdeps/hppa/dl-trampoline.S b/sysdeps/hppa/dl-trampoline.S
index 22f484a..64f0966 100644
--- a/sysdeps/hppa/dl-trampoline.S
+++ b/sysdeps/hppa/dl-trampoline.S
@@ -82,6 +82,11 @@ _dl_runtime_resolve:
 	bl	_dl_fixup,%rp
 	copy	%r21,%r19		/* set fixup func ltp */
 
+	/* Sometimes a final executable may attempt to call an undefined
+	   weak function (e.g., __gmon_start__).  Return if the function
+	   was not resolved by _dl_fixup */
+	comib,=	0,%r28,1f
+
 	/* Load up the returned func descriptor */
 	copy	%r28, %r22
 	copy	%r29, %r19
@@ -107,6 +112,13 @@ _dl_runtime_resolve:
 	/* Jump to new function, but return to previous function */
 	bv	%r0(%r22)
 	ldw	-20(%sp),%rp
+
+1:
+	/* Return to previous function */
+	ldw	-148(%sp),%rp
+	bv	%r0(%rp)
+	ldo	-128(%sp),%sp
+
         .EXIT
         .PROCEND
 	cfi_endproc

--Apple-Mail-30-163483931
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	filename=submitted-dladdr.diff
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	name="submitted-dladdr.diff"
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2016-05-14  John David Anglin  <danglin@gcc.gnu.org>

	[BZ 20098]
	* sysdeps/hppa/dl-fptr.c (_dl_read_access_allowed): New.
	(_dl_lookup_address): Return address if it is not consistent with
	being a linker defined function pointer.  Likewise, return address
	if address and function descriptor addresses are not accessible.
	
diff --git a/sysdeps/hppa/dl-fptr.c b/sysdeps/hppa/dl-fptr.c
index 083242b..af0c5a1 100644
--- a/sysdeps/hppa/dl-fptr.c
+++ b/sysdeps/hppa/dl-fptr.c
@@ -331,22 +331,45 @@ elf_machine_resolve (void)
   return addr;
 }
 
+static inline int
+_dl_read_access_allowed (unsigned int *addr)
+{
+  int result;
+
+  asm ("proberi	(%1),3,%0" : "=r" (result) : "r" (addr) : );
+
+  return result;
+}
+
 ElfW(Addr)
 _dl_lookup_address (const void *address)
 {
   ElfW(Addr) addr = (ElfW(Addr)) address;
   unsigned int *desc, *gptr;
 
-  /* Check for special cases.  */
-  if ((int) addr == -1
-      || (unsigned int) addr < 4096
-      || !((unsigned int) addr & 2))
+  /* Return ADDR if the least-significant two bits of ADDR are not consistent
+     with ADDR being a linker defined function pointer.  The normal value for
+     a code address in a backtrace is 3.  */
+  if (((unsigned int) addr & 3) != 2)
+    return addr;
+
+  /* Handle special case where ADDR points to page 0.  */
+  if ((unsigned int) addr < 4096)
     return addr;
 
   /* Clear least-significant two bits from descriptor address.  */
   desc = (unsigned int *) ((unsigned int) addr & ~3);
+  if (!_dl_read_access_allowed (desc))
+    return addr;
+
+  /* Load first word of candidate descriptor.  It should be a pointer
+     with word alignment and point to memory that can be read.  */
+  gptr = (unsigned int *) desc[0];
+  if (((unsigned int) gptr & 3) != 0
+      || !_dl_read_access_allowed (gptr))
+    return addr;
 
-  /* Check if descriptor requires resolution.  The following trampoline is
+  /* See if descriptor requires resolution.  The following trampoline is
      used in each global offset table for function resolution:
 
 		ldw 0(r20),r22
@@ -358,7 +381,6 @@ _dl_lookup_address (const void *address)
 		.word "_dl_runtime_resolve ltp"
      got:	.word _DYNAMIC
 		.word "struct link map address" */
-  gptr = (unsigned int *) desc[0];
   if (gptr[0] == 0xea9f1fdd			/* b,l .-12,r20     */
       && gptr[1] == 0xd6801c1e			/* depwi 0,31,2,r20 */
       && (ElfW(Addr)) gptr[2] == elf_machine_resolve ())

--Apple-Mail-30-163483931
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	filename=local-stack-grows-up.diff
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--- a/nptl/allocatestack.c
+++ b/nptl/allocatestack.c
@@ -683,9 +692,13 @@
 			prot) != 0)
 	    goto mprot_error;
 #elif _STACK_GROWS_UP
-	  if (mprotect ((char *) pd - pd->guardsize,
-			pd->guardsize - guardsize, prot) != 0)
-	    goto mprot_error;
+	  char *new_guard = (char *) (((uintptr_t) pd - guardsize) & ~pagesize_m1);
+	  char *old_guard = (char *) (((uintptr_t) pd - pd->guardsize) & ~pagesize_m1);
+	  /* The guard size difference might be > 0, but once rounded
+	     to the nearest page the size difference might be zero.  */
+	  if (old_guard - new_guard > 0)
+	    if (mprotect (old_guard, new_guard - old_guard, prot) != 0)
+	      goto mprot_error;
 #endif
 
 	  pd->guardsize = guardsize;

--Apple-Mail-30-163483931
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Index: eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h
===================================================================
--- eglibc-2.18.orig/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2013-01-09 19:28:48.000000000 -0500
+++ eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2014-04-09 21:08:06.516202583 -0400
@@ -36,7 +36,7 @@
 #define SHM_UNLOCK	12		/* unlock segment (root only) */
 
 /* Segment low boundary address multiple.  */
-#define SHMLBA 0x00400000		/* address needs to be 4 Mb aligned */
+#define SHMLBA		(__getpagesize ())
 
 /* Type to count number of attaches.  */
 typedef unsigned long int shmatt_t;

--Apple-Mail-30-163483931
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Increase the maximal overall growth of the compilation unit caused
by inlining for dl-reloc.c on hppa. This remove some warnings and 
strangely it reduces the size of the final binary.

---
 sysdeps/hppa/Makefile |    1 +
 1 file changed, 1 insertion(+)

--- a/sysdeps/hppa/Makefile
+++ b/sysdeps/hppa/Makefile
@@ -23,6 +23,7 @@
 
 ifeq ($(subdir),elf)
 CFLAGS-rtld.c += -mdisable-fpregs
+CFLAGS-dl-reloc.c += --param inline-unit-growth=100
 sysdep-dl-routines += dl-symaddr dl-fptr
 # dl-fptr.c needs a complete rewrite to fix ISO C aliasing violations.
 CFLAGS-dl-fptr.c = -Wno-error

--Apple-Mail-30-163483931
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	filename=local-fptr-table-size.diff
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Index: glibc-2.21/sysdeps/hppa/dl-fptr.c
===================================================================
--- glibc-2.21.orig/sysdeps/hppa/dl-fptr.c
+++ glibc-2.21/sysdeps/hppa/dl-fptr.c
@@ -28,6 +28,7 @@
 #include <dl-fptr.h>
 #include <dl-unmap-segments.h>
 #include <atomic.h>
+#include <libc-internal.h>
 
 #ifndef ELF_MACHINE_BOOT_FPTR_TABLE_LEN
 /* ELF_MACHINE_BOOT_FPTR_TABLE_LEN should be greater than the number of
@@ -181,24 +182,29 @@
 static inline ElfW(Addr) * __attribute__ ((always_inline))
 make_fptr_table (struct link_map *map)
 {
-  const ElfW(Sym) *symtab
-    = (const void *) D_PTR (map, l_info[DT_SYMTAB]);
+  const ElfW(Sym) *symtab = (const void *) D_PTR (map, l_info[DT_SYMTAB]);
   const char *strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
   ElfW(Addr) *fptr_table;
   size_t size;
   size_t len;
+  const ElfW(Sym) *symtabend;
 
-  /* XXX Apparently the only way to find out the size of the dynamic
-     symbol section is to assume that the string table follows right
-     afterwards...  */
-  len = ((strtab - (char *) symtab)
+  /* Determine the end of the dynamic symbol table using the hash.  */
+  if (map->l_info[DT_HASH] != NULL)
+    symtabend = (symtab + ((Elf_Symndx *) D_PTR (map, l_info[DT_HASH]))[1]);
+  else
+  /* There is no direct way to determine the number of symbols in the
+     dynamic symbol table and no hash table is present.  The ELF
+     binary is ill-formed but what shall we do?  Use the beginning of
+     the string table which generally follows the symbol table.  */
+    symtabend = (const ElfW(Sym) *) strtab;
+
+  len = (((char *) symtabend - (char *) symtab)
 	 / map->l_info[DT_SYMENT]->d_un.d_val);
-  size = ((len * sizeof (fptr_table[0]) + GLRO(dl_pagesize) - 1)
-	  & -GLRO(dl_pagesize));
-  /* XXX We don't support here in the moment systems without MAP_ANON.
-     There probably are none for IA-64.  In case this is proven wrong
-     we will have to open /dev/null here and use the file descriptor
-     instead of the hard-coded -1.  */
+  size = ALIGN_UP (len * sizeof (fptr_table[0]), GLRO(dl_pagesize));
+
+  /* We don't support systems without MAP_ANON.  We avoid using malloc
+     because this might get called before malloc is setup.  */
   fptr_table = __mmap (NULL, size,
 		       PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
 		       -1, 0);

--Apple-Mail-30-163483931
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	filename=local-elf-make-cflags.diff
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	name="local-elf-make-cflags.diff"
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Index: eglibc-2.18/elf/Makefile
===================================================================
--- eglibc-2.18.orig/elf/Makefile	2014-02-25 20:47:20.859469989 -0500
+++ eglibc-2.18/elf/Makefile	2014-02-25 20:47:20.769469646 -0500
@@ -424,7 +424,7 @@
 libof-ldconfig = ldconfig
 CFLAGS-dl-cache.c = $(SYSCONF-FLAGS)
 CFLAGS-cache.c = $(SYSCONF-FLAGS)
-CFLAGS-rtld.c = $(SYSCONF-FLAGS)
+CFLAGS-rtld.c += $(SYSCONF-FLAGS)
 
 cpp-srcs-left := $(all-rtld-routines:=.os)
 lib := rtld

--Apple-Mail-30-163483931
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	filename=cvs-atomic-machine.diff
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2016-09-22  John David Anglin  <dave.anglin@bell.net>

	* sysdeps/unix/sysv/linux/hppa/atomic-machine.h: Don't include
	abort-instr.h.
	(EFAULT): Remove conditional define.
	(ENOSYS): Likewise.
	(atomic_compare_and_exchange_val_acq): Use instruction nullification
	instead of conditional branch instructions.

--- a/sysdeps/unix/sysv/linux/hppa/atomic-machine.h
+++ b/sysdeps/unix/sysv/linux/hppa/atomic-machine.h
@@ -17,13 +17,6 @@
    <http://www.gnu.org/licenses/>.  */
 
 #include <stdint.h> /*  Required for type definitions e.g. uint8_t.  */
-#include <abort-instr.h> /*  Required for ABORT_INSTRUCTIUON.  */
-
-/* We need EFAULT, ENONSYS */
-#if !defined EFAULT && !defined ENOSYS
-#define EFAULT	14
-#define ENOSYS	251
-#endif
 
 #ifndef _ATOMIC_MACHINE_H
 #define _ATOMIC_MACHINE_H	1
@@ -62,7 +55,7 @@ typedef uintmax_t uatomic_max_t;
 #define _ASM_EDEADLOCK "-45"
 
 /* The only basic operation needed is compare and exchange.  The mem
-   pointer must be word aligned.  */
+   pointer must be word aligned.  We no longer loop on deadlock.  */
 #define atomic_compare_and_exchange_val_acq(mem, newval, oldval)	\
   ({									\
      register long lws_errno asm("r21");				\
@@ -74,20 +67,15 @@ typedef uintmax_t uatomic_max_t;
 	"0:					\n\t"			\
 	"ble	" _LWS "(%%sr2, %%r0)		\n\t"			\
 	"ldi	" _LWS_CAS ", %%r20		\n\t"			\
-	"ldi	" _ASM_EAGAIN ", %%r20		\n\t"			\
-	"cmpb,=,n %%r20, %%r21, 0b		\n\t"			\
-	"nop					\n\t"			\
-	"ldi	" _ASM_EDEADLOCK ", %%r20	\n\t"			\
-	"cmpb,=,n %%r20, %%r21, 0b		\n\t"			\
-	"nop					\n\t"			\
+	"cmpiclr,<> " _ASM_EAGAIN ", %%r21, %%r0\n\t"			\
+	"b,n 0b					\n\t"			\
+	"cmpclr,= %%r0, %%r21, %%r0		\n\t"			\
+	"iitlbp %%r0,(%%sr0, %%r0)		\n\t"			\
 	: "=r" (lws_ret), "=r" (lws_errno)				\
 	: "r" (lws_mem), "r" (lws_old), "r" (lws_new)			\
 	: _LWS_CLOBBER							\
      );									\
 									\
-     if (lws_errno == -EFAULT || lws_errno == -ENOSYS)			\
-	ABORT_INSTRUCTION;						\
-									\
      (__typeof (oldval)) lws_ret;					\
    })
 

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From - Thu Nov 08 21:39:22 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] parisc: Purge TLB before setting PTE
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The attached change interchanges the order of purging the TLB and =
setting the corresponding page
table entry.  TLB purges are strongly ordered.  It occurred to me one =
night that setting the PTE first
might have subtle ordering issues on SMP machines and cause random =
memory corruption.

A TLB lock guards the insertion of user TLB entries.  So after the TLB =
is purged, a new entry can't
be inserted until the lock is released.  This ensures that the new PTE =
value is used when the lock
is released.

Since making this change, no random segmentation faults have been =
observed on the Debian hppa
buildd servers.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>



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diff --git a/arch/parisc/include/asm/pgtable.h =
b/arch/parisc/include/asm/pgtable.h
index c2c43f7..3a4ed9f 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -65,9 +65,9 @@ static inline void purge_tlb_entries(struct mm_struct =
*mm, unsigned long addr)
 		unsigned long flags;				\
 		spin_lock_irqsave(&pa_tlb_lock, flags);		\
 		old_pte =3D *ptep;				\
-		set_pte(ptep, pteval);				\
 		if (pte_inserted(old_pte))			\
 			purge_tlb_entries(mm, addr);		\
+		set_pte(ptep, pteval);				\
 		spin_unlock_irqrestore(&pa_tlb_lock, flags);	\
 	} while (0)
=20
@@ -478,8 +478,8 @@ static inline int ptep_test_and_clear_young(struct =
vm_area_struct *vma, unsigned
 		spin_unlock_irqrestore(&pa_tlb_lock, flags);
 		return 0;
 	}
-	set_pte(ptep, pte_mkold(pte));
 	purge_tlb_entries(vma->vm_mm, addr);
+	set_pte(ptep, pte_mkold(pte));
 	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 	return 1;
 }
@@ -492,9 +492,9 @@ static inline pte_t ptep_get_and_clear(struct =
mm_struct *mm, unsigned long addr,
=20
 	spin_lock_irqsave(&pa_tlb_lock, flags);
 	old_pte =3D *ptep;
-	set_pte(ptep, __pte(0));
 	if (pte_inserted(old_pte))
 		purge_tlb_entries(mm, addr);
+	set_pte(ptep, __pte(0));
 	spin_unlock_irqrestore(&pa_tlb_lock, flags);
=20
 	return old_pte;
@@ -504,8 +504,8 @@ static inline void ptep_set_wrprotect(struct =
mm_struct *mm, unsigned long addr,
 {
 	unsigned long flags;
 	spin_lock_irqsave(&pa_tlb_lock, flags);
-	set_pte(ptep, pte_wrprotect(*ptep));
 	purge_tlb_entries(mm, addr);
+	set_pte(ptep, pte_wrprotect(*ptep));
 	spin_unlock_irqrestore(&pa_tlb_lock, flags);
 }
=20

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Subject: [PATCH] parisc: Remove unnecessary TLB purges from flush_dcache_page_asm and flush_icache_page_asm
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--Apple-Mail-46-261348559
Content-Transfer-Encoding: quoted-printable
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We have four routines in pacache.S that use temporary alias pages: =
copy_user_page_asm(), clear_user_page_asm(),
flush_dcache_page_asm() and flush_icache_page_asm().  =
copy_user_page_asm() and clear_user_page_asm() don't
purge the TLB entry used for the operation.  flush_dcache_page_asm() and =
flush_icache_page_asm do purge the
entry.

Presumably, this was thought to optimize TLB use.  However, the =
operation is quite heavy weight on PA 1.X processors
as we need to take the TLB lock and a TLB broadcast is sent to all =
processors.

This patch removes the purges from flush_dcache_page_asm() and =
flush_icache_page_asm.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>



--Apple-Mail-46-261348559
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	filename=pacache.S.d1.txt
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diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index b743a80..41a923d 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -886,19 +892,10 @@ ENTRY(flush_dcache_page_asm)
 	fdc,m		r31(%r28)
 	fdc,m		r31(%r28)
 	fdc,m		r31(%r28)
-	cmpb,COND(<<)		%r28, %r25,1b
+	cmpb,COND(<<)	%r28, %r25,1b
 	fdc,m		r31(%r28)
 
 	sync
-
-#ifdef CONFIG_PA20
-	pdtlb,l		0(%r25)
-#else
-	tlb_lock	%r20,%r21,%r22
-	pdtlb		0(%r25)
-	tlb_unlock	%r20,%r21,%r22
-#endif
-
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -968,15 +970,6 @@ ENTRY(flush_icache_page_asm)
 	fic,m		%r31(%sr4,%r28)
 
 	sync
-
-#ifdef CONFIG_PA20
-	pitlb,l         %r0(%sr4,%r25)
-#else
-	tlb_lock        %r20,%r21,%r22
-	pitlb           (%sr4,%r25)
-	tlb_unlock      %r20,%r21,%r22
-#endif

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix TLB related boot crash with PA8000-PA8700 CPUs
Date: Wed, 7 Dec 2016 21:52:40 +0100
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Machines with PA8000-PA8700 CPUs crash during startup while we measure
and calculate a good threshold for the TLB flush.

Avoid this crash by simply skipping the test until we figure out what
really triggers the crash.

Cc: <stable@vger.kernel.org> # v3.18+
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index c263301..63c10ea 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -393,6 +393,14 @@ void __init parisc_setup_cache_timing(void)
 
 	/* calculate TLB flush threshold */
 
+	/* skip TLB measure on PA8000-PA8700 CPUs */
+	if (boot_cpu_data.cpu_type >= pcxu &&
+	    boot_cpu_data.cpu_type <= pcxw2) {
+		threshold = max(cache_info.it_size, cache_info.dt_size);
+		threshold *= PAGE_SIZE;
+		goto set_tlb_threshold;
+	}
+
 	alltime = mfctl(16);
 	flush_tlb_all();
 	alltime = mfctl(16) - alltime;
@@ -411,6 +419,8 @@ void __init parisc_setup_cache_timing(void)
 		alltime, size, rangetime);
 
 	threshold = PAGE_ALIGN(num_online_cpus() * size * alltime / rangetime);
+
+set_tlb_threshold:
 	if (threshold)
 		parisc_tlb_flush_threshold = threshold;
 	printk(KERN_INFO "TLB flush threshold set to %lu KiB\n",
--
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From - Thu Nov 08 21:39:22 2018
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Fix TLB related boot crash with PA8000-PA8700
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On Wed, Dec 07, 2016 at 09:52:40PM +0100, Helge Deller wrote:
> Machines with PA8000-PA8700 CPUs crash during startup while we measure
> and calculate a good threshold for the TLB flush.

I haven't seen any crashed on HP c3700 (PA8700)...

A.
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Subject: Re: [PATCH] parisc: Fix TLB related boot crash with PA8000-PA8700
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On 2016-12-07 4:34 PM, Aaro Koskinen wrote:
> On Wed, Dec 07, 2016 at 09:52:40PM +0100, Helge Deller wrote:
>> Machines with PA8000-PA8700 CPUs crash during startup while we measure
>> and calculate a good threshold for the TLB flush.
> I haven't seen any crashed on HP c3700 (PA8700)...
I believe the issue only affects SMP machines.  My c3750 also boots okay.

Dave

-- 
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From - Thu Nov 08 21:39:22 2018
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From: Dan Carpenter <dan.carpenter@oracle.com>
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Subject: [patch] parisc: perf: return -EFAULT on error
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The copy_from_user() returns the number of bytes remaining to be copied
but we want to return -EFAULT if it's non-zero.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index 518f4f5f1f43..76c96a53fc71 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -320,8 +320,8 @@ static ssize_t perf_write(struct file *file, const char __user *buf, size_t coun
 	if (count != sizeof(uint32_t))
 		return -EIO;
 
-	if ((err = copy_from_user(&image_type, buf, sizeof(uint32_t))) != 0) 
-		return err;
+	if (copy_from_user(&image_type, buf, sizeof(uint32_t)))
+		return -EFAULT;
 
 	/* Get the interface type and test type */
    	interface_type = (image_type >> 16) & 0xffff;
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Hi Dan,

On Thu, Dec 8, 2016 at 12:32 PM, Dan Carpenter <dan.carpenter@oracle.com> wrote:
> -       if ((err = copy_from_user(&image_type, buf, sizeof(uint32_t))) != 0)
> -               return err;

Why not delete err?

Regards,
Bojan
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Subject: Re: [patch] parisc: perf: return -EFAULT on error
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On Thu, Dec 08, 2016 at 03:53:42PM +0100, bojan prtvar wrote:
> Hi Dan,
> 
> On Thu, Dec 8, 2016 at 12:32 PM, Dan Carpenter <dan.carpenter@oracle.com> wrote:
> > -       if ((err = copy_from_user(&image_type, buf, sizeof(uint32_t))) != 0)
> > -               return err;
> 
> Why not delete err?

Gar... I'm sorry.  I'll resend.

regards,
dan carpenter

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Subject: Re: [PATCH] parisc: Fix TLB related boot crash with PA8000-PA8700
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Hi Aaro,

On 07.12.2016 22:34, Aaro Koskinen wrote:
> On Wed, Dec 07, 2016 at 09:52:40PM +0100, Helge Deller wrote:
>> Machines with PA8000-PA8700 CPUs crash during startup while we measure
>> and calculate a good threshold for the TLB flush.
> 
> I haven't seen any crashed on HP c3700 (PA8700)...

Thanks for the feedback!
I did some additional analysis today, and it happens only on SMP machines.
I could reproduce the crash on a A500-44 and a J5000, both are 2-way boxes.

Helge
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At bootup we run measurements to calculate the best threshold for when we
should be using full TLB flushes instead of just flushing a specific amount of
TLB entries.  This performance test is run over the kernel text segment.

But running this TLB performance test on the kernel text segment turned out to
crash some SMP machines when the kernel text pages were mapped as huge pages.

To avoid those crashes this patch simply skips this test on some SMP machines
and calculates an optimal threshold based on the maximum number of available
TLB entries and number of online CPUs.

On a technical side, this seems to happen:
The TLB measurement code uses flush_tlb_kernel_range() to flush specific TLB
entries with a page size of 4k (pdtlb 0(sr1,addr)). On UP systems this purge
instruction seems to work without problems even if the pages were mapped as
huge pages.  But on SMP systems the TLB purge instruction is broadcasted to
other CPUs. Those CPUs then crash the machine because the page size is not as
expected.  C8000 machines with PA8800/PA8900 CPUs were not affected by this
problem, because the required cache coherency prohibits to use huge pages at
all.  Sadly I didn't found any documentation about this behaviour, so this
finding is purely based on testing with phyiscal SMP machines (A500-44 and
J5000, both were 2-way boxes).

Cc: <stable@vger.kernel.org> # v3.18+
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index c263301..977f0a4f 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -393,6 +393,15 @@ void __init parisc_setup_cache_timing(void)
 
 	/* calculate TLB flush threshold */
 
+	/* On SMP machines, skip the TLB measure of kernel text which
+	 * has been mapped as huge pages. */
+	if (num_online_cpus() > 1 && !parisc_requires_coherency()) {
+		threshold = max(cache_info.it_size, cache_info.dt_size);
+		threshold *= PAGE_SIZE;
+		threshold /= num_online_cpus();
+		goto set_tlb_threshold;
+	}
+
 	alltime = mfctl(16);
 	flush_tlb_all();
 	alltime = mfctl(16) - alltime;
@@ -411,6 +420,8 @@ void __init parisc_setup_cache_timing(void)
 		alltime, size, rangetime);
 
 	threshold = PAGE_ALIGN(num_online_cpus() * size * alltime / rangetime);
+
+set_tlb_threshold:
 	if (threshold)
 		parisc_tlb_flush_threshold = threshold;
 	printk(KERN_INFO "TLB flush threshold set to %lu KiB\n",
--
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Subject: Re: [PATCH] parisc: Fix TLB related boot crash on SMP machines
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To: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
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On 2016-12-08 3:00 PM, Helge Deller wrote:
> On a technical side, this seems to happen:
> The TLB measurement code uses flush_tlb_kernel_range() to flush specific TLB
> entries with a page size of 4k (pdtlb 0(sr1,addr)). On UP systems this purge
> instruction seems to work without problems even if the pages were mapped as
> huge pages.  But on SMP systems the TLB purge instruction is broadcasted to
> other CPUs. Those CPUs then crash the machine because the page size is not as
> expected.  C8000 machines with PA8800/PA8900 CPUs were not affected by this
> problem, because the required cache coherency prohibits to use huge pages at
> all.  Sadly I didn't found any documentation about this behaviour, so this
> finding is purely based on testing with phyiscal SMP machines (A500-44 and
> J5000, both were 2-way boxes).
I doubt the problem is the 4k iteration using pdtlb 0(sr1,addr).  I 
think the issue is the huge
page size for the kernel.  Each pdtlb instruction knocks out the same 
tlb entry including the
entry used for tlb interruptions.  This likely leads to stack overflow.  
In any case, it probably
doesn't provide accurate timing because each pdtlb knocks out the entry 
for the interruption
handler on systems with combined tlb.

Dave
-- 

John David Anglin  dave.anglin@bell.net

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Subject: Re: [PATCH] parisc: Fix TLB related boot crash on SMP machines
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On 08.12.2016 21:49, John David Anglin wrote:
> On 2016-12-08 3:00 PM, Helge Deller wrote:
>> On a technical side, this seems to happen:
>> The TLB measurement code uses flush_tlb_kernel_range() to flush specific TLB
>> entries with a page size of 4k (pdtlb 0(sr1,addr)). On UP systems this purge
>> instruction seems to work without problems even if the pages were mapped as
>> huge pages.  But on SMP systems the TLB purge instruction is broadcasted to
>> other CPUs. Those CPUs then crash the machine because the page size is not as
>> expected.  C8000 machines with PA8800/PA8900 CPUs were not affected by this
>> problem, because the required cache coherency prohibits to use huge pages at
>> all.  Sadly I didn't found any documentation about this behaviour, so this
>> finding is purely based on testing with phyiscal SMP machines (A500-44 and
>> J5000, both were 2-way boxes).

> I doubt the problem is the 4k iteration using pdtlb 0(sr1,addr). I
> think the issue is the huge page size for the kernel. Each pdtlb
> instruction knocks out the same tlb entry including the entry used
> for tlb interruptions. This likely leads to stack overflow. 

Yes, likely.

> In any
> case, it probably doesn't provide accurate timing because each pdtlb
> knocks out the entry for the interruption handler on systems with
> combined tlb.

True.

So, how to continue?
I see two options:
a) skip the TLB measuring code as my patch does.
b) kmalloc() another region and do measurement there.

I'd like to submit some fix-patch for 4.9, else the machines won't boot 4.9.
That's why I'd prefer option a).
Opinions?

Helge
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From - Thu Nov 08 21:39:23 2018
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Subject: Re: [PATCH] parisc: Fix TLB related boot crash on SMP machines
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On 2016-12-08 4:15 PM, Helge Deller wrote:
> On 08.12.2016 21:49, John David Anglin wrote:
>> On 2016-12-08 3:00 PM, Helge Deller wrote:
>>> On a technical side, this seems to happen:
>>> The TLB measurement code uses flush_tlb_kernel_range() to flush specific TLB
>>> entries with a page size of 4k (pdtlb 0(sr1,addr)). On UP systems this purge
>>> instruction seems to work without problems even if the pages were mapped as
>>> huge pages.  But on SMP systems the TLB purge instruction is broadcasted to
>>> other CPUs. Those CPUs then crash the machine because the page size is not as
>>> expected.  C8000 machines with PA8800/PA8900 CPUs were not affected by this
>>> problem, because the required cache coherency prohibits to use huge pages at
>>> all.  Sadly I didn't found any documentation about this behaviour, so this
>>> finding is purely based on testing with phyiscal SMP machines (A500-44 and
>>> J5000, both were 2-way boxes).
>> I doubt the problem is the 4k iteration using pdtlb 0(sr1,addr). I
>> think the issue is the huge page size for the kernel. Each pdtlb
>> instruction knocks out the same tlb entry including the entry used
>> for tlb interruptions. This likely leads to stack overflow.
> Yes, likely.
>
>> In any
>> case, it probably doesn't provide accurate timing because each pdtlb
>> knocks out the entry for the interruption handler on systems with
>> combined tlb.
> True.
>
> So, how to continue?
> I see two options:
> a) skip the TLB measuring code as my patch does.
> b) kmalloc() another region and do measurement there.
>
> I'd like to submit some fix-patch for 4.9, else the machines won't boot 4.9.
> That's why I'd prefer option a).
> Opinions?
Go with option a) for 4.9

Dave

-- 
John David Anglin  dave.anglin@bell.net

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From - Thu Nov 08 21:39:23 2018
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Hi Linus,

Please pull three important fixes for the parisc architecture for v4.9 from
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.9-5

Dave provided two patches: One which purges the TLB before setting a PTE entry
and a second one which drops unnecessary TLB flushes. Both patches have been
tested for one week on the debian buildd servers and prevent random
segmentation faults. 

The patch from me fixes a crash at boot inside the TLB measuring code on SMP
machines with PA8000-PA8700 CPUs (specifically A500-44 and J5000 servers).

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (1):
      parisc: Fix TLB related boot crash on SMP machines

John David Anglin (2):
      parisc: Purge TLB before setting PTE
      parisc: Remove unnecessary TLB purges from flush_dcache_page_asm and flush_icache_page_asm

 arch/parisc/include/asm/pgtable.h |  8 ++++----
 arch/parisc/kernel/cache.c        | 11 +++++++++++
 arch/parisc/kernel/pacache.S      | 22 +---------------------
 3 files changed, 16 insertions(+), 25 deletions(-)


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From: Dan Carpenter <dan.carpenter@oracle.com>
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Subject: [patch v2] parisc: perf: return -EFAULT on error
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The copy_from_user() returns the number of bytes remaining to be copied
but we want to return -EFAULT if it's non-zero.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
v2: Fix unused variable warning.  Thanks, Bojan.

diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index 518f4f5f1f43..6eabce62463b 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -301,7 +301,6 @@ static ssize_t perf_read(struct file *file, char __user *buf, size_t cnt, loff_t
 static ssize_t perf_write(struct file *file, const char __user *buf, size_t count, 
 	loff_t *ppos)
 {
-	int err;
 	size_t image_size;
 	uint32_t image_type;
 	uint32_t interface_type;
@@ -320,8 +319,8 @@ static ssize_t perf_write(struct file *file, const char __user *buf, size_t coun
 	if (count != sizeof(uint32_t))
 		return -EIO;
 
-	if ((err = copy_from_user(&image_type, buf, sizeof(uint32_t))) != 0) 
-		return err;
+	if (copy_from_user(&image_type, buf, sizeof(uint32_t)))
+		return -EFAULT;
 
 	/* Get the interface type and test type */
    	interface_type = (image_type >> 16) & 0xffff;
--
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Subject: Re: [patch v2] parisc: perf: return -EFAULT on error
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On 10.12.2016 10:06, Dan Carpenter wrote:
> The copy_from_user() returns the number of bytes remaining to be copied
> but we want to return -EFAULT if it's non-zero.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Thanks Dan!
I'll add it to my next push request for the parisc architecture.

Helge


> ---
> v2: Fix unused variable warning.  Thanks, Bojan.
> 
> diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
> index 518f4f5f1f43..6eabce62463b 100644
> --- a/arch/parisc/kernel/perf.c
> +++ b/arch/parisc/kernel/perf.c
> @@ -301,7 +301,6 @@ static ssize_t perf_read(struct file *file, char __user *buf, size_t cnt, loff_t
>  static ssize_t perf_write(struct file *file, const char __user *buf, size_t count, 
>  	loff_t *ppos)
>  {
> -	int err;
>  	size_t image_size;
>  	uint32_t image_type;
>  	uint32_t interface_type;
> @@ -320,8 +319,8 @@ static ssize_t perf_write(struct file *file, const char __user *buf, size_t coun
>  	if (count != sizeof(uint32_t))
>  		return -EIO;
>  
> -	if ((err = copy_from_user(&image_type, buf, sizeof(uint32_t))) != 0) 
> -		return err;
> +	if (copy_from_user(&image_type, buf, sizeof(uint32_t)))
> +		return -EFAULT;
>  
>  	/* Get the interface type and test type */
>     	interface_type = (image_type >> 16) & 0xffff;
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

--
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From: John David Anglin <dave.anglin@bell.net>
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Subject: [committed] parisc:  -mcaller-copies option
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The attached change implements a new -mcaller-copies option on hppa.  =
The default 32-bit runtime
specifies that the callee copies arguments passed by hidden reference.  =
This is optimal but it causes
problems with openmp.  See PR middle-end/68733:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D68733

It's not clear openmp can be fixed to work with callee copies targets.

This option provides a work around.  The general consensus is that =
caller copies is better tested
and it seems probable that we will switch to caller copies on Debian =
when we switch to gcc-7.

Tested on hppa-unknown-linux-gnu, hppa2.0w-hp-hpux11.11 and =
hppa64-hp-hpux11.11 with no observed
regression.  When enabled, it fixes the failures noted in PR 68733.

Committed to trunk.

Dave
--
John David Anglin	dave.anglin@bell.net



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2012-12-11  John David Anglin  <danglin@gcc.gnu.org>

	* config/pa/pa.c (pa_callee_copies): New function.
	* config/pa/pa.opt (mcaller-copies): New option.
	* doc/invoke.texi (mcaller-copies): Document option.

Index: config/pa/pa.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
--- config/pa/pa.c	(revision 243232)
+++ config/pa/pa.c	(working copy)
@@ -195,6 +195,8 @@
 static bool pa_legitimate_constant_p (machine_mode, rtx);
 static unsigned int pa_section_type_flags (tree, const char *, int);
 static bool pa_legitimate_address_p (machine_mode, rtx, bool);
+static bool pa_callee_copies (cumulative_args_t, machine_mode,
+			      const_tree, bool);
=20
 /* The following extra sections are only used for SOM.  */
 static GTY(()) section *som_readonly_data_section;
@@ -343,7 +345,7 @@
 #undef TARGET_PASS_BY_REFERENCE
 #define TARGET_PASS_BY_REFERENCE pa_pass_by_reference
 #undef TARGET_CALLEE_COPIES
-#define TARGET_CALLEE_COPIES =
hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true
+#define TARGET_CALLEE_COPIES pa_callee_copies
 #undef TARGET_ARG_PARTIAL_BYTES
 #define TARGET_ARG_PARTIAL_BYTES pa_arg_partial_bytes
 #undef TARGET_FUNCTION_ARG
@@ -10720,4 +10722,19 @@
   return NULL_RTX;
 }
=20
+/* Implement TARGET_CALLEE_COPIES.  The callee is responsible for =
copying
+   arguments passed by hidden reference in the 32-bit HP runtime.  =
Users
+   can override this behavior for better compatibility with openmp at =
the
+   risk of library incompatibilities.  Arguments are always passed by =
value
+   in the 64-bit HP runtime.  */
+
+static bool
+pa_callee_copies (cumulative_args_t cum ATTRIBUTE_UNUSED,
+		  machine_mode mode ATTRIBUTE_UNUSED,
+		  const_tree type ATTRIBUTE_UNUSED,
+		  bool named ATTRIBUTE_UNUSED)
+{
+  return !TARGET_CALLER_COPIES;
+}
+
 #include "gt-pa.h"
Index: config/pa/pa.opt
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
--- config/pa/pa.opt	(revision 243232)
+++ config/pa/pa.opt	(working copy)
@@ -41,6 +41,10 @@
 Target Ignore
 Does nothing.  Preserved for backward compatibility.
=20
+mcaller-copies
+Target Report Mask(CALLER_COPIES)
+Caller copies function arguments passed by hidden reference.
+
 mdisable-fpregs
 Target Report Mask(DISABLE_FPREGS)
 Disable FP regs.
Index: doc/invoke.texi
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
--- doc/invoke.texi	(revision 243232)
+++ doc/invoke.texi	(working copy)
@@ -761,7 +761,7 @@
=20
 @emph{HPPA Options}
 @gccoptlist{-march=3D@var{architecture-type} @gol
--mdisable-fpregs  -mdisable-indexing @gol
+-mcaller-copies  -mdisable-fpregs  -mdisable-indexing @gol
 -mfast-indirect-calls  -mgas  -mgnu-ld   -mhp-ld @gol
 -mfixed-range=3D@var{register-range} @gol
 -mjump-in-delay -mlinker-opt -mlong-calls @gol
@@ -17363,6 +17363,14 @@
 @opindex mpa-risc-2-0
 Synonyms for @option{-march=3D1.0}, @option{-march=3D1.1}, and =
@option{-march=3D2.0} respectively.
=20
+@item -mcaller-copies
+@opindex mcaller-copies
+The caller copies function arguments passed by hidden reference.  This
+option should be used with care as it is not compatible with the =
default
+32-bit runtime.  However, only aggregates larger than eight bytes are
+passed by hidden reference and the option provides better compatibility
+with openmp.
+
 @item -mjump-in-delay
 @opindex mjump-in-delay
 This option is ignored and provided for compatibility purposes only.

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From - Thu Nov 08 21:39:23 2018
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On 12/11/2016 12:30 PM, John David Anglin wrote:

> +@item -mcaller-copies
> +@opindex mcaller-copies
> +The caller copies function arguments passed by hidden reference.  This
> +option should be used with care as it is not compatible with the default
> +32-bit runtime.  However, only aggregates larger than eight bytes are
> +passed by hidden reference and the option provides better compatibility
> +with openmp.

Please fix this to spell "OpenMP" correctly.

-Sandra

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Restructure the timer interrupt function to better cope with missed timer irqs.
Optimize the calculation when the next interrupt should happen and skip irqs if
they would happen too shortly after exit of the irq function.

The update_process_times() call is done anyway at every timer irq, so we can
safely drop the prof_counter and prof_multiplier variables from the per_cpu
structure. 

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 2e674e1..e439630 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -93,9 +93,7 @@ struct system_cpuinfo_parisc {
 /* Per CPU data structure - ie varies per CPU.  */
 struct cpuinfo_parisc {
 	unsigned long it_value;     /* Interval Timer at last timer Intr */
-	unsigned long it_delta;     /* Interval delta (tic_10ms / HZ * 100) */
 	unsigned long irq_count;    /* number of IRQ's since boot */
-	unsigned long irq_max_cr16; /* longest time to handle a single IRQ */
 	unsigned long cpuid;        /* aka slot_number or set to NO_PROC_ID */
 	unsigned long hpa;          /* Host Physical address */
 	unsigned long txn_addr;     /* MMIO addr of EIR or id_eid */
@@ -103,8 +101,6 @@ struct cpuinfo_parisc {
 	unsigned long pending_ipi;  /* bitmap of type ipi_message_type */
 #endif
 	unsigned long bh_count;     /* number of times bh was invoked */
-	unsigned long prof_counter; /* per CPU profiling support */
-	unsigned long prof_multiplier;	/* per CPU profiling support */
 	unsigned long fp_rev;
 	unsigned long fp_model;
 	unsigned int state;
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index c1c08b5..85de47f 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -78,11 +78,6 @@ DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 static void
 init_percpu_prof(unsigned long cpunum)
 {
-	struct cpuinfo_parisc *p;
-
-	p = &per_cpu(cpu_data, cpunum);
-	p->prof_counter = 1;
-	p->prof_multiplier = 1;
 }
 
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 325f30d..66cbab4 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -59,10 +59,9 @@ static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
  */
 irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 {
-	unsigned long now, now2;
+	unsigned long now;
 	unsigned long next_tick;
-	unsigned long cycles_elapsed, ticks_elapsed = 1;
-	unsigned long cycles_remainder;
+	unsigned long ticks_elapsed = 0;
 	unsigned int cpu = smp_processor_id();
 	struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
 
@@ -71,102 +70,49 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
 	profile_tick(CPU_PROFILING);
 
-	/* Initialize next_tick to the expected tick time. */
+	/* Initialize next_tick to the old expected tick time. */
 	next_tick = cpuinfo->it_value;
 
-	/* Get current cycle counter (Control Register 16). */
-	now = mfctl(16);
-
-	cycles_elapsed = now - next_tick;
-
-	if ((cycles_elapsed >> 6) < cpt) {
-		/* use "cheap" math (add/subtract) instead
-		 * of the more expensive div/mul method
-		 */
-		cycles_remainder = cycles_elapsed;
-		while (cycles_remainder > cpt) {
-			cycles_remainder -= cpt;
-			ticks_elapsed++;
-		}
-	} else {
-		/* TODO: Reduce this to one fdiv op */
-		cycles_remainder = cycles_elapsed % cpt;
-		ticks_elapsed += cycles_elapsed / cpt;
-	}
-
-	/* convert from "division remainder" to "remainder of clock tick" */
-	cycles_remainder = cpt - cycles_remainder;
-
-	/* Determine when (in CR16 cycles) next IT interrupt will fire.
-	 * We want IT to fire modulo clocktick even if we miss/skip some.
-	 * But those interrupts don't in fact get delivered that regularly.
-	 */
-	next_tick = now + cycles_remainder;
+	/* Calculate how many ticks have elapsed. */
+	do {
+		++ticks_elapsed;
+		next_tick += cpt;
+		now = mfctl(16);
+	} while (next_tick - now > cpt);
 
+	/* Store (in CR16 cycles) up to when we are accounting right now. */
 	cpuinfo->it_value = next_tick;
 
-	/* Program the IT when to deliver the next interrupt.
-	 * Only bottom 32-bits of next_tick are writable in CR16!
-	 */
-	mtctl(next_tick, 16);
+	/* Go do system house keeping. */
+	if (cpu == 0)
+		xtime_update(ticks_elapsed);
+
+	update_process_times(user_mode(get_irq_regs()));
 
-	/* Skip one clocktick on purpose if we missed next_tick.
+	/* Skip clockticks on purpose if we know we would miss those.
 	 * The new CR16 must be "later" than current CR16 otherwise
 	 * itimer would not fire until CR16 wrapped - e.g 4 seconds
 	 * later on a 1Ghz processor. We'll account for the missed
-	 * tick on the next timer interrupt.
+	 * ticks on the next timer interrupt.
+	 * We want IT to fire modulo clocktick even if we miss/skip some.
+	 * But those interrupts don't in fact get delivered that regularly.
 	 *
 	 * "next_tick - now" will always give the difference regardless
 	 * if one or the other wrapped. If "now" is "bigger" we'll end up
 	 * with a very large unsigned number.
 	 */
-	now2 = mfctl(16);
-	if (next_tick - now2 > cpt)
-		mtctl(next_tick+cpt, 16);
+	while (next_tick - mfctl(16) > cpt)
+		next_tick += cpt;
 
-#if 1
-/*
- * GGG: DEBUG code for how many cycles programming CR16 used.
- */
-	if (unlikely(now2 - now > 0x3000)) 	/* 12K cycles */
-		printk (KERN_CRIT "timer_interrupt(CPU %d): SLOW! 0x%lx cycles!"
-			" cyc %lX rem %lX "
-			" next/now %lX/%lX\n",
-			cpu, now2 - now, cycles_elapsed, cycles_remainder,
-			next_tick, now );
-#endif
-
-	/* Can we differentiate between "early CR16" (aka Scenario 1) and
-	 * "long delay" (aka Scenario 3)? I don't think so.
-	 *
-	 * Timer_interrupt will be delivered at least a few hundred cycles
-	 * after the IT fires. But it's arbitrary how much time passes
-	 * before we call it "late". I've picked one second.
-	 *
-	 * It's important NO printk's are between reading CR16 and
-	 * setting up the next value. May introduce huge variance.
-	 */
-	if (unlikely(ticks_elapsed > HZ)) {
-		/* Scenario 3: very long delay?  bad in any case */
-		printk (KERN_CRIT "timer_interrupt(CPU %d): delayed!"
-			" cycles %lX rem %lX "
-			" next/now %lX/%lX\n",
-			cpu,
-			cycles_elapsed, cycles_remainder,
-			next_tick, now );
-	}
-
-	/* Done mucking with unreliable delivery of interrupts.
-	 * Go do system house keeping.
+	/* Program the IT when to deliver the next interrupt.
+	 * Only bottom 32-bits of next_tick are writable in CR16!
+	 * Timer interrupt will be delivered at least a few hundred cycles
+	 * after the IT fires, so if we are too close (<= 500 cycles) to the
+	 * next cycle, simply skip it.
 	 */
-
-	if (!--cpuinfo->prof_counter) {
-		cpuinfo->prof_counter = cpuinfo->prof_multiplier;
-		update_process_times(user_mode(get_irq_regs()));
-	}

From - Thu Nov 08 21:39:23 2018
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X-Mozilla-Keys:                                                                                 
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Purge TLB entry used for tmp alias operations on PA 2.0
Date: Tue, 20 Dec 2016 19:53:19 -0500
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To: "linux-parisc@vger.kernel.org List" <linux-parisc@vger.kernel.org>
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It became apparent with more buildd testing that the previous patch =
removing the TLB purge
after a tmp alias operation (e.g., cache flush) was incorrect on PA 2.0 =
systems that don't support
inequivalent aliases.  This patch restores the needed purge on PA 2.0 =
systems.  Essentially,
the purge is only needed on systems with PA8800 and PA8900 processors.

It uses registers %r24 and %r25 to save the address of the tmp alias =
pages used for the 'to'
and 'from' operations.

We don't check whether inequivalent aliases are supported or not as the =
purge is local and can
be done efficiently on all PA 2.0 processors.

The patch has been tested for six days on rp3440 and no random =
segmentation faults have been
observed.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>



--Apple-Mail-26--684257517
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diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index adf7187f8951..289c57c16f3d 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -626,6 +626,8 @@ ENTRY_CFI(copy_user_page_asm)
 	/* Purge any old translations */
 
 #ifdef CONFIG_PA20
+	copy		%r28, %r24
+	copy		%r29, %r25
 	pdtlb,l		%r0(%r28)
 	pdtlb,l		%r0(%r29)
 #else
@@ -743,6 +745,11 @@ ENTRY_CFI(copy_user_page_asm)
 	ldo		64(%r29), %r29
 #endif
 
+#ifdef CONFIG_PA20
+	pdtlb,l		%r0(%r24)
+	pdtlb,l		%r0(%r25)
+#endif
+
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -774,6 +781,7 @@ ENTRY_CFI(clear_user_page_asm)
 	/* Purge any old translation */
 
 #ifdef CONFIG_PA20
+	copy		%r28, %r24
 	pdtlb,l		%r0(%r28)
 #else
 	tlb_lock	%r20,%r21,%r22
@@ -829,6 +837,10 @@ ENTRY_CFI(clear_user_page_asm)
 	ldo		64(%r28), %r28
 #endif	/* CONFIG_64BIT */
 
+#ifdef CONFIG_PA20
+	pdtlb,l		%r0(%r24)
+#endif
+
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -855,16 +867,6 @@ ENTRY_CFI(flush_dcache_page_asm)
 	depwi		0, 31,PAGE_SHIFT, %r28	/* Clear any offset bits */
 #endif
 
-	/* Purge any old translation */
-
-#ifdef CONFIG_PA20
-	pdtlb,l		%r0(%r28)
-#else
-	tlb_lock	%r20,%r21,%r22
-	pdtlb		%r0(%r28)
-	tlb_unlock	%r20,%r21,%r22
-#endif
-
 	ldil		L%dcache_stride, %r1
 	ldw		R%dcache_stride(%r1), r31
 
@@ -876,6 +878,16 @@ ENTRY_CFI(flush_dcache_page_asm)
 	add		%r28, %r25, %r25
 	sub		%r25, r31, %r25
 
+	/* Purge any old translation */
+
+#ifdef CONFIG_PA20
+	copy		%r28, %r24
+	pdtlb,l		%r0(%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		%r0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 1:      fdc,m		r31(%r28)
 	fdc,m		r31(%r28)
@@ -896,6 +908,11 @@ ENTRY_CFI(flush_dcache_page_asm)
 	fdc,m		r31(%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pdtlb,l		%r0(%r24)
+#endif
+
 	bv		%r0(%r2)
 	nop
 	.exit
@@ -922,21 +939,6 @@ ENTRY_CFI(flush_icache_page_asm)
 	depwi		0, 31,PAGE_SHIFT, %r28	/* Clear any offset bits */
 #endif
 
-	/* Purge any old translation.  Note that the FIC instruction
-	 * may use either the instruction or data TLB.  Given that we
-	 * have a flat address space, it's not clear which TLB will be
-	 * used.  So, we purge both entries.  */
-
-#ifdef CONFIG_PA20
-	pdtlb,l		%r0(%r28)
-	pitlb,l         %r0(%sr4,%r28)
-#else
-	tlb_lock        %r20,%r21,%r22
-	pdtlb		%r0(%r28)
-	pitlb           %r0(%sr4,%r28)
-	tlb_unlock      %r20,%r21,%r22
-#endif
-
 	ldil		L%icache_stride, %r1
 	ldw		R%icache_stride(%r1), %r31
 
@@ -948,6 +950,20 @@ ENTRY_CFI(flush_icache_page_asm)
 	add		%r28, %r25, %r25
 	sub		%r25, %r31, %r25
 
+	/* Purge any old translation.  Note that the FIC instruction
+	 * may use either the instruction or data TLB.  Given that we
+	 * have a flat address space, it's not clear which TLB will be
+	 * used.  So, we purge both entries.  */
+
+#ifdef CONFIG_PA20
+	copy            %r28, %r24
+	pdtlb,l		%r0(%r28)
+	pitlb,l		%r0(%sr4,%r28)
+#else
+	tlb_lock	%r20,%r21,%r22
+	pdtlb		%r0(%r28)
+	tlb_unlock	%r20,%r21,%r22
+#endif
 
 	/* fic only has the type 26 form on PA1.1, requiring an
 	 * explicit space specification, so use %sr4 */
@@ -970,6 +986,12 @@ ENTRY_CFI(flush_icache_page_asm)
 	fic,m		%r31(%sr4,%r28)
 
 	sync
+
+#ifdef CONFIG_PA20
+	pdtlb,l		%r0(%r24)
+	pitlb,l		%r0(%sr4,%r24)
+#endif
+
 	bv		%r0(%r2)
 	nop
 	.exit

--Apple-Mail-26--684257517
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--
John David Anglin	dave.anglin@bell.net

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From - Thu Nov 08 21:39:23 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc architecture updates for v4.10-rc1
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        James Bottomley <James.Bottomley@HansenPartnership.com>,
        John David Anglin <dave.anglin@bell.net>
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Hi Linus,

please pull the changes for this merge window for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.10-1

Changes include:
 
- Add Kernel address space layout randomization support
- Re-enable interrupts earlier now that we have a working IRQ stack
- Optimize the timer interrupt function to better cope with missed timer irqs
- Fix error return code in parisc perf code (by Dan Carpenter)
- Fix PAT debug code

Thanks,
Helge

----------------------------------------------------------------
Dan Carpenter (1):
      parisc: perf: return -EFAULT on error

Helge Deller (4):
      parisc: Enable KASLR
      parisc: Re-enable interrupts early
      parisc: Enhance CPU detection code on PAT machines
      parisc: Optimize timer interrupt function

 arch/parisc/Kconfig                 |   1 +
 arch/parisc/include/asm/elf.h       |   7 ++-
 arch/parisc/include/asm/pdcpat.h    |   2 +-
 arch/parisc/include/asm/processor.h |   4 --
 arch/parisc/kernel/entry.S          |  12 +---
 arch/parisc/kernel/firmware.c       |   2 +-
 arch/parisc/kernel/inventory.c      |   8 +--
 arch/parisc/kernel/perf.c           |   5 +-
 arch/parisc/kernel/process.c        |   6 +-
 arch/parisc/kernel/processor.c      |  29 +++++-----
 arch/parisc/kernel/sys_parisc.c     |  18 +++---
 arch/parisc/kernel/time.c           | 112 ++++++++++--------------------------
 12 files changed, 67 insertions(+), 139 deletions(-)
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From - Thu Nov 08 21:39:23 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.serial,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] serial: 8250: use initializer instead of memset to clear
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/546263>

Leave the way of zero-out to the compiler's decision; the compiler
may know a more optimized way than calling memset().

It may end up with memset() for big structures like this after all,
but the code will be cleaner at least.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

 drivers/tty/serial/8250/8250_acorn.c    |  3 +--
 drivers/tty/serial/8250/8250_core.c     |  4 +---
 drivers/tty/serial/8250/8250_em.c       |  3 +--
 drivers/tty/serial/8250/8250_gsc.c      |  3 +--
 drivers/tty/serial/8250/8250_hp300.c    | 11 +++--------
 drivers/tty/serial/8250/8250_lpc18xx.c  |  4 +---
 drivers/tty/serial/8250/8250_lpss.c     |  4 +---
 drivers/tty/serial/8250/8250_mid.c      |  4 +---
 drivers/tty/serial/8250/8250_moxa.c     |  4 +---
 drivers/tty/serial/8250/8250_of.c       |  4 ++--
 drivers/tty/serial/8250/8250_omap.c     |  3 +--
 drivers/tty/serial/8250/8250_pci.c      |  3 +--
 drivers/tty/serial/8250/8250_pnp.c      |  3 +--
 drivers/tty/serial/8250/8250_uniphier.c |  4 +---
 drivers/tty/serial/8250/serial_cs.c     |  3 +--
 15 files changed, 18 insertions(+), 42 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_acorn.c b/drivers/tty/serial/8250/8250_acorn.c
index 402dfdd..f49acafc 100644
--- a/drivers/tty/serial/8250/8250_acorn.c
+++ b/drivers/tty/serial/8250/8250_acorn.c
@@ -43,7 +43,7 @@ serial_card_probe(struct expansion_card *ec, const struct ecard_id *id)
 {
 	struct serial_card_info *info;
 	struct serial_card_type *type = id->data;
-	struct uart_8250_port uart;
+	struct uart_8250_port uart = {};
 	unsigned long bus_addr;
 	unsigned int i;
 
@@ -62,7 +62,6 @@ serial_card_probe(struct expansion_card *ec, const struct ecard_id *id)
 
 	ecard_set_drvdata(ec, info);
 
-	memset(&uart, 0, sizeof(struct uart_8250_port));
 	uart.port.irq	= ec->irq;
 	uart.port.flags	= UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
 	uart.port.uartclk	= type->uartclk;
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 61569a7..27c18c9 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -804,11 +804,9 @@ EXPORT_SYMBOL(serial8250_resume_port);
 static int serial8250_probe(struct platform_device *dev)
 {
 	struct plat_serial8250_port *p = dev_get_platdata(&dev->dev);
-	struct uart_8250_port uart;
+	struct uart_8250_port uart = {};
 	int ret, i, irqflag = 0;
 
-	memset(&uart, 0, sizeof(uart));
-
 	if (share_irqs)
 		irqflag = IRQF_SHARED;
 
diff --git a/drivers/tty/serial/8250/8250_em.c b/drivers/tty/serial/8250/8250_em.c
index 0b63812..5deabaf 100644
--- a/drivers/tty/serial/8250/8250_em.c
+++ b/drivers/tty/serial/8250/8250_em.c
@@ -92,7 +92,7 @@ static int serial8250_em_probe(struct platform_device *pdev)
 	struct resource *regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	struct resource *irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	struct serial8250_em_priv *priv;
-	struct uart_8250_port up;
+	struct uart_8250_port up = {};
 	int ret;
 
 	if (!regs || !irq) {
@@ -110,7 +110,6 @@ static int serial8250_em_probe(struct platform_device *pdev)
 		return PTR_ERR(priv->sclk);
 	}
 
-	memset(&up, 0, sizeof(up));
 	up.port.mapbase = regs->start;
 	up.port.irq = irq->start;
 	up.port.type = PORT_UNKNOWN;
diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/8250/8250_gsc.c
index b1e6ae9..5366e97 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -26,7 +26,7 @@
 
 static int __init serial_init_chip(struct parisc_device *dev)
 {
-	struct uart_8250_port uart;
+	struct uart_8250_port uart = {};
 	unsigned long address;
 	int err;
 
@@ -53,7 +53,6 @@ static int __init serial_init_chip(struct parisc_device *dev)
 	if (dev->id.sversion != 0x8d)
 		address += 0x800;
 
-	memset(&uart, 0, sizeof(uart));
 	uart.port.iotype	= UPIO_MEM;
 	/* 7.272727MHz on Lasi.  Assumed the same for Dino, Wax and Timi. */
 	uart.port.uartclk	= (dev->id.sversion != 0xad) ?
diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/8250/8250_hp300.c
index 38166db..6fd6414 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -90,9 +90,7 @@ extern int hp300_uart_scode;
 int __init hp300_setup_serial_console(void)
 {
 	int scode;
-	struct uart_port port;
-
-	memset(&port, 0, sizeof(port));
+	struct uart_port port = {};
 
 	if (hp300_uart_scode < 0 || hp300_uart_scode > DIO_SCMAX)
 		return 0;
@@ -156,7 +154,7 @@ int __init hp300_setup_serial_console(void)
 static int hpdca_init_one(struct dio_dev *d,
 				const struct dio_device_id *ent)
 {
-	struct uart_8250_port uart;
+	struct uart_8250_port uart = {};
 	int line;
 
 #ifdef CONFIG_SERIAL_8250_CONSOLE
@@ -165,7 +163,6 @@ static int hpdca_init_one(struct dio_dev *d,
 		return 0;
 	}
 #endif
-	memset(&uart, 0, sizeof(uart));
 
 	/* Memory mapped I/O */
 	uart.port.iotype = UPIO_MEM;
@@ -205,7 +202,7 @@ static int __init hp300_8250_init(void)
 #ifdef CONFIG_HPAPCI
 	int line;
 	unsigned long base;
-	struct uart_8250_port uart;
+	struct uart_8250_port uart = {};
 	struct hp300_port *port;
 	int i;
 #endif
@@ -243,8 +240,6 @@ static int __init hp300_8250_init(void)
 		if (!port)
 			return -ENOMEM;
 
-		memset(&uart, 0, sizeof(uart));
-
 		base = (FRODO_BASE + FRODO_APCI_OFFSET(i));
 
 		/* Memory mapped I/O */
diff --git a/drivers/tty/serial/8250/8250_lpc18xx.c b/drivers/tty/serial/8250/8250_lpc18xx.c
index 99cd478..e00115b 100644
--- a/drivers/tty/serial/8250/8250_lpc18xx.c
+++ b/drivers/tty/serial/8250/8250_lpc18xx.c
@@ -105,7 +105,7 @@ static void lpc18xx_uart_serial_out(struct uart_port *p, int offset, int value)
 static int lpc18xx_serial_probe(struct platform_device *pdev)
 {
 	struct lpc18xx_uart_data *data;
-	struct uart_8250_port uart;
+	struct uart_8250_port uart = {};
 	struct resource *res;
 	int irq, ret;
 
@@ -121,8 +121,6 @@ static int lpc18xx_serial_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	memset(&uart, 0, sizeof(uart));
-
 	uart.port.membase = devm_ioremap(&pdev->dev, res->start,
 					 resource_size(res));
 	if (!uart.port.membase)
diff --git a/drivers/tty/serial/8250/8250_lpss.c b/drivers/tty/serial/8250/8250_lpss.c
index 58cbb30..cba46dd 100644
--- a/drivers/tty/serial/8250/8250_lpss.c
+++ b/drivers/tty/serial/8250/8250_lpss.c
@@ -275,7 +275,7 @@ static int lpss8250_dma_setup(struct lpss8250 *lpss, struct uart_8250_port *port
 
 static int lpss8250_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
-	struct uart_8250_port uart;
+	struct uart_8250_port uart = {};
 	struct lpss8250 *lpss;
 	int ret;
 
@@ -289,8 +289,6 @@ static int lpss8250_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	lpss->board = (struct lpss8250_board *)id->driver_data;
 
-	memset(&uart, 0, sizeof(struct uart_8250_port));
-
 	uart.port.dev = &pdev->dev;
 	uart.port.irq = pdev->irq;
 	uart.port.private_data = lpss;
diff --git a/drivers/tty/serial/8250/8250_mid.c b/drivers/tty/serial/8250/8250_mid.c
index ac013edf..8dd68c9 100644
--- a/drivers/tty/serial/8250/8250_mid.c
+++ b/drivers/tty/serial/8250/8250_mid.c
@@ -241,7 +241,7 @@ static int mid8250_dma_setup(struct mid8250 *mid, struct uart_8250_port *port)
 
 static int mid8250_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
-	struct uart_8250_port uart;
+	struct uart_8250_port uart = {};
 	struct mid8250 *mid;
 	unsigned int bar;
 	int ret;
@@ -259,8 +259,6 @@ static int mid8250_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	mid->board = (struct mid8250_board *)id->driver_data;
 	bar = FL_GET_BASE(mid->board->flags);
 
-	memset(&uart, 0, sizeof(struct uart_8250_port));
-
 	uart.port.dev = &pdev->dev;
 	uart.port.irq = pdev->irq;
 	uart.port.private_data = mid;
diff --git a/drivers/tty/serial/8250/8250_moxa.c b/drivers/tty/serial/8250/8250_moxa.c
index 26eb539..fe5179b 100644
--- a/drivers/tty/serial/8250/8250_moxa.c
+++ b/drivers/tty/serial/8250/8250_moxa.c
@@ -49,7 +49,7 @@ static struct moxa8250_board moxa8250_boards[] = {
 
 static int moxa8250_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
-	struct uart_8250_port uart;
+	struct uart_8250_port uart = {};
 	struct moxa8250_board *brd;
 	void __iomem *ioaddr;
 	resource_size_t baseaddr;
@@ -69,8 +69,6 @@ static int moxa8250_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	if (!brd)
 		return -ENOMEM;
 
-	memset(&uart, 0, sizeof(struct uart_8250_port));
-
 	uart.port.dev = &pdev->dev;
 	uart.port.irq = pdev->irq;
 	uart.port.uartclk = MOXA_BASE_BAUD * 16;
diff --git a/drivers/tty/serial/8250/8250_of.c b/drivers/tty/serial/8250/8250_of.c
index d25ab1c..1fae126 100644
--- a/drivers/tty/serial/8250/8250_of.c
+++ b/drivers/tty/serial/8250/8250_of.c
@@ -196,8 +196,8 @@ static int of_platform_serial_probe(struct platform_device *ofdev)
 	case PORT_8250 ... PORT_MAX_8250:
 	{
 		u32 tx_threshold;
-		struct uart_8250_port port8250;
-		memset(&port8250, 0, sizeof(port8250));
+		struct uart_8250_port port8250 = {};
+
 		port8250.port = port;
 
 		if (port.fifosize)
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 61ad6c3..ac88bf9 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -1093,7 +1093,7 @@ static int omap8250_probe(struct platform_device *pdev)
 	struct resource *regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	struct resource *irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	struct omap8250_priv *priv;
-	struct uart_8250_port up;
+	struct uart_8250_port up = {};
 	int ret;
 	void __iomem *membase;
 
@@ -1111,7 +1111,6 @@ static int omap8250_probe(struct platform_device *pdev)
 	if (!membase)
 		return -ENODEV;
 
-	memset(&up, 0, sizeof(up));
 	up.port.dev = &pdev->dev;
 	up.port.mapbase = regs->start;
 	up.port.membase = membase;
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index aa0166b..5e45704 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -3834,7 +3834,7 @@ serial_pci_matches(const struct pciserial_board *board,
 struct serial_private *
 pciserial_init_ports(struct pci_dev *dev, const struct pciserial_board *board)
 {
-	struct uart_8250_port uart;
+	struct uart_8250_port uart = {};
 	struct serial_private *priv;
 	struct pci_serial_quirk *quirk;
 	int rc, nr_ports, i;
@@ -3874,7 +3874,6 @@ pciserial_init_ports(struct pci_dev *dev, const struct pciserial_board *board)
 	priv->dev = dev;
 	priv->quirk = quirk;
 
-	memset(&uart, 0, sizeof(uart));
 	uart.port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
 	uart.port.uartclk = board->base_baud * 16;
 	uart.port.irq = get_pci_irq(dev, board);
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/8250/8250_pnp.c
index 34f05ed..0891a6f 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -439,7 +439,7 @@ static int serial_pnp_guess_board(struct pnp_dev *dev)
 static int
 serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
 {
-	struct uart_8250_port uart, *port;
+	struct uart_8250_port uart = {}, *port;
 	int ret, line, flags = dev_id->driver_data;
 
 	if (flags & UNKNOWN_DEV) {
@@ -448,7 +448,6 @@ serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
 			return ret;
 	}
 
-	memset(&uart, 0, sizeof(uart));
 	if (pnp_irq_valid(dev, 0))
 		uart.port.irq = pnp_irq(dev, 0);
 	if ((flags & CIR_PORT) && pnp_port_valid(dev, 2)) {
diff --git a/drivers/tty/serial/8250/8250_uniphier.c b/drivers/tty/serial/8250/8250_uniphier.c
index 746680e..d7cfdfd 100644
--- a/drivers/tty/serial/8250/8250_uniphier.c
+++ b/drivers/tty/serial/8250/8250_uniphier.c
@@ -196,7 +196,7 @@ static int uniphier_of_serial_setup(struct device *dev, struct uart_port *port,
 static int uniphier_uart_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct uart_8250_port up;
+	struct uart_8250_port up = {};
 	struct uniphier8250_priv *priv;
 	struct resource *regs;
 	void __iomem *membase;
@@ -223,8 +223,6 @@ static int uniphier_uart_probe(struct platform_device *pdev)
 	if (!priv)
 		return -ENOMEM;
 
-	memset(&up, 0, sizeof(up));
-
 	ret = uniphier_of_serial_setup(dev, &up.port, priv);
 	if (ret < 0)
 		return ret;
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8250/serial_cs.c
index 933c268..348f897 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -342,10 +342,9 @@ static void serial_detach(struct pcmcia_device *link)
 static int setup_serial(struct pcmcia_device *handle, struct serial_info *info,
 			unsigned int iobase, int irq)
 {
-	struct uart_8250_port uart;
+	struct uart_8250_port uart = {};
 	int line;
 
-	memset(&uart, 0, sizeof(uart));
 	uart.port.iobase = iobase;
 	uart.port.irq = irq;
 	uart.port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ;
-- 
2.7.4

From - Thu Nov 08 21:39:24 2018
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X-Mozilla-Keys:                                                                                 
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH] serial: 8250: use initializer instead of memset to clear
 local struct
Date: Fri, 23 Dec 2016 08:20:26 +0100
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Approved: news@gmane.org
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To: Masahiro Yamada <yamada.masahiro@socionext.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2375300>

On Fri, Dec 23, 2016 at 12:21:48PM +0900, Masahiro Yamada wrote:
> Leave the way of zero-out to the compiler's decision; the compiler
> may know a more optimized way than calling memset().

But no, it doesn't, it will leave "blank" areas in the structure with
bad data in it, which is why we do memset.  See the tree-wide fixups we
made about a year ago for this very issue.  Are you sure none of these
structures get copied to userspace?

> It may end up with memset() for big structures like this after all,
> but the code will be cleaner at least.

Please leave it as-is, unless you see a measured speedup.

thanks,

greg k-h


From - Thu Nov 08 21:39:24 2018
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From: Masahiro Yamada <yamada.masahiro@socionext.com>
Newsgroups: gmane.linux.kernel,gmane.linux.serial,gmane.linux.ports.parisc,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH] serial: 8250: use initializer instead of memset to clear
 local struct
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Cc: linux-serial@vger.kernel.org, linux-parisc@vger.kernel.org,
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To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Hi Greg,


2016-12-23 16:20 GMT+09:00 Greg Kroah-Hartman <gregkh@linuxfoundation.org>:
> On Fri, Dec 23, 2016 at 12:21:48PM +0900, Masahiro Yamada wrote:
>> Leave the way of zero-out to the compiler's decision; the compiler
>> may know a more optimized way than calling memset().
>
> But no, it doesn't, it will leave "blank" areas in the structure with
> bad data in it, which is why we do memset.  See the tree-wide fixups we
> made about a year ago for this very issue.  Are you sure none of these
> structures get copied to userspace?

I have to admit no security consideration was in my mind.

If we talk about the particular case of struct uart_8250_port,
this structure is allocated in the stack temporarily,
then serial8250_register_8250_port() copies its members to another
structure one by one.  So no "blank" area is exposed to the user-space,
I think.

Having said that, we have no good reason to take a risk for this.

So, please feel free to discard this patch.


-- 
Best Regards
Masahiro Yamada


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Mark cr16 clocksource unstable on SMP systems
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The cr16 interval timer of each CPU is not syncronized to other cr16
timers in other CPUs in a SMP system. So, delay the registration of the
cr16 clocksource until all CPUs have been detected and then mark it as
unstable and lower it's rating before registering it at the clockource
framework.

This patch fixes the stalled CPU warnings which we have seen since
introduction of the cr16 clocksource.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 325f30d..47ef8fd 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -289,9 +289,26 @@ void __init time_init(void)
 
 	cr16_hz = 100 * PAGE0->mem_10msec;  /* Hz */
 
-	/* register at clocksource framework */
-	clocksource_register_hz(&clocksource_cr16, cr16_hz);

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Drop TIF_RESTORE_SIGMASK and switch to generic code
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Commit 7e7814180b33 ("signal: consolidate {TS,TLF}_RESTORE_SIGMASK code")
introduced code with which the "restore sigmask" flag lives in task_struct
instead of ti->flags.
Use it on parisc.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 7581330e..88fe0aa 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -49,7 +49,6 @@ struct thread_info {
 #define TIF_POLLING_NRFLAG	3	/* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_32BIT               4       /* 32 bit binary */
 #define TIF_MEMDIE		5	/* is terminating due to OOM killer */
-#define TIF_RESTORE_SIGMASK	6	/* restore saved signal mask */
 #define TIF_SYSCALL_AUDIT	7	/* syscall auditing active */
 #define TIF_NOTIFY_RESUME	8	/* callback before returning to user */
 #define TIF_SINGLESTEP		9	/* single stepping? */
--
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From - Thu Nov 08 21:39:24 2018
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From: Davidlohr Bueso <dave@stgolabs.net>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH] parisc: use generic current.h
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Given that the arch does not add its own implementations, simply
use the asm-generic/current.h (generic-y) header instead of
duplicating code.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
---
 arch/parisc/include/asm/Kbuild    |  1 +
 arch/parisc/include/asm/current.h | 15 ---------------
 2 files changed, 1 insertion(+), 15 deletions(-)
 delete mode 100644 arch/parisc/include/asm/current.h

diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 91f53c07f410..a07448dc2b29 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -3,6 +3,7 @@ generic-y += auxvec.h
 generic-y += barrier.h
 generic-y += clkdev.h
 generic-y += cputime.h
+generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += emergency-restart.h
diff --git a/arch/parisc/include/asm/current.h b/arch/parisc/include/asm/current.h
deleted file mode 100644
index 0fb9338e3bf2..000000000000
--- a/arch/parisc/include/asm/current.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef _PARISC_CURRENT_H
-#define _PARISC_CURRENT_H
-
-#include <linux/thread_info.h>
-
-struct task_struct;
-
-static inline struct task_struct * get_current(void)
-{
-	return current_thread_info()->task;
-}
- 
-#define current get_current()
-
-#endif /* !(_PARISC_CURRENT_H) */
-- 
2.6.6



From - Thu Nov 08 21:39:24 2018
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From: Dmitry Safonov <dsafonov@virtuozzo.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc
Subject: [RFC 0/4] x86: keep TASK_SIZE in sync with mm->task_size
Date: Fri, 30 Dec 2016 18:56:30 +0300
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        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Andy Lutomirski <luto@kernel.org>,
        "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
        <x86@kernel.org>, Catalin Marinas <catalin.marinas@arm.com>,
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        Heiko Carstens <heiko.carstens@de.ibm.com>,
        "David S. Miller" <davem@davemloft.net>,
        Peter Zijlstra <peterz@infradead.o
To: <linux-kernel@vger.kernel.org>
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Xref: news.gmane.org gmane.linux.ports.mips.general:57302 gmane.linux.kernel:2377290 gmane.linux.ports.arm.kernel:546934 gmane.linux.ports.parisc:27124 gmane.linux.ports.ppc64.devel:136848 gmane.linux.ports.sparc:24219
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/57302>

At this moment, we have following task_size-related things:
- TASK_SIZE_OF() macro, which is unused;
- current->mm->task_size which is used in half and TASK_SIZE() macro
  which is used in the other half of code
- TIF_ADDR32, which is used to detect 32-bit address space and is
  x86-specific, where some other arches misused TIF_32BIT
- personality ADDR_LIMIT_32BIT, which is used on arm/alpha
- ADDR_LIMIT_3GB, which is x86-specific and can be used to change
  running task's TASK_SIZE 3GB <-> 4GB

This patches set removes unused definition of TASK_SIZE_OF (1),
defines TASK_SIZE macro as current->mm->task_size (3).
I would suggest define TASK_SIZE this way in generic version,
but currently I test it only on x86.
It also frees thread info flag (2) and adds arch_prctl()
on x86_64 to get/set current virtual address space size - as
it's needed by now only for CRIU, hide it under CHECKPOINT_RESTORE
config.
Hope those patches will help to clean task_size-related code
at least a bit (and helps me to restore vaddr limits).

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: x86@kernel.org

Dmitry Safonov (4):
  mm: remove unused TASK_SIZE_OF()
  x86/thread_info: kill TIF_ADDR32 in favour of ADDR_LIMIT_32BIT
  x86/mm: define TASK_SIZE as current->mm->task_size
  x86/arch_prctl: add ARCH_{GET,SET}_TASK_SIZE

 arch/arm64/include/asm/memory.h       |  2 --
 arch/mips/include/asm/processor.h     |  3 ---
 arch/parisc/include/asm/processor.h   |  3 +--
 arch/powerpc/include/asm/processor.h  |  3 +--
 arch/s390/include/asm/processor.h     |  3 +--
 arch/sparc/include/asm/processor_64.h |  3 ---
 arch/x86/include/asm/elf.h            |  7 +++++--
 arch/x86/include/asm/processor.h      | 19 +++++++++----------
 arch/x86/include/asm/thread_info.h    |  4 +---
 arch/x86/include/uapi/asm/prctl.h     |  3 +++
 arch/x86/kernel/process_64.c          | 17 +++++++++++++++--
 arch/x86/kernel/sys_x86_64.c          |  4 ++--
 arch/x86/um/asm/segment.h             |  2 +-
 arch/x86/xen/mmu.c                    |  4 ++--
 fs/exec.c                             | 17 +++++++++++------
 include/linux/sched.h                 |  4 ----
 16 files changed, 52 insertions(+), 46 deletions(-)

-- 
2.11.0




From - Thu Nov 08 21:39:24 2018
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From: Dmitry Safonov <dsafonov@virtuozzo.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc
Subject: [RFC 1/4] mm: remove unused TASK_SIZE_OF()
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Cc: <0x7f454c46@gmail.com>, Dmitry Safonov <dsafonov@virtuozzo.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Ralf Baechle <ralf@linux-mips.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        "David S. Miller" <davem@davemloft.net>,
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        <linux-arm-kernel@lists.infradead.org>,
        <linux-mips@linux-mips.org>, <linux-parisc@vger.kernel.org>,
        <linuxppc-dev@lists.ozlabs.org>, <linux-s390@vger.kernel.org>,
        <sparclinux@vger.kernel.org>, Thomas Gleixner <tglx@l
To: <linux-kernel@vger.kernel.org>
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Xref: news.gmane.org gmane.linux.ports.mips.general:57303 gmane.linux.kernel:2377291 gmane.linux.ports.arm.kernel:546935 gmane.linux.ports.parisc:27125 gmane.linux.ports.ppc64.devel:136849 gmane.linux.ports.sparc:24220
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/57303>

All users of TASK_SIZE_OF(tsk) have migrated to mm->task_size or
TASK_SIZE_MAX since:
commit d696ca016d57 ("x86/fsgsbase/64: Use TASK_SIZE_MAX for
FSBASE/GSBASE upper limits"),
commit a06db751c321 ("pagemap: check permissions and capabilities at
open time"),

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com>
---
 arch/arm64/include/asm/memory.h       | 2 --
 arch/mips/include/asm/processor.h     | 3 ---
 arch/parisc/include/asm/processor.h   | 3 +--
 arch/powerpc/include/asm/processor.h  | 3 +--
 arch/s390/include/asm/processor.h     | 3 +--
 arch/sparc/include/asm/processor_64.h | 3 ---
 arch/x86/include/asm/processor.h      | 2 --
 include/linux/sched.h                 | 4 ----
 8 files changed, 3 insertions(+), 20 deletions(-)

diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index bfe632808d77..329bb4fd543c 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -80,8 +80,6 @@
 #define TASK_SIZE_32		UL(0x100000000)
 #define TASK_SIZE		(test_thread_flag(TIF_32BIT) ? \
 				TASK_SIZE_32 : TASK_SIZE_64)
-#define TASK_SIZE_OF(tsk)	(test_tsk_thread_flag(tsk, TIF_32BIT) ? \
-				TASK_SIZE_32 : TASK_SIZE_64)
 #else
 #define TASK_SIZE		TASK_SIZE_64
 #endif /* CONFIG_COMPAT */
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index 95b8c471f572..c2827a5507d4 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -73,9 +73,6 @@ extern unsigned int vced_count, vcei_count;
 #define TASK_SIZE (test_thread_flag(TIF_32BIT_ADDR) ? TASK_SIZE32 : TASK_SIZE64)
 #define STACK_TOP_MAX	TASK_SIZE64
 
-#define TASK_SIZE_OF(tsk)						\
-	(test_tsk_thread_flag(tsk, TIF_32BIT_ADDR) ? TASK_SIZE32 : TASK_SIZE64)
-
 #define TASK_IS_32BIT_ADDR test_thread_flag(TIF_32BIT_ADDR)
 
 #endif
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index a3661ee6b060..8b51ddae8e4a 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -32,8 +32,7 @@
 
 #define HAVE_ARCH_PICK_MMAP_LAYOUT
 
-#define TASK_SIZE_OF(tsk)       ((tsk)->thread.task_size)
-#define TASK_SIZE	        TASK_SIZE_OF(current)
+#define TASK_SIZE	        (current->thread.task_size)
 #define TASK_UNMAPPED_BASE      (current->thread.map_base)
 
 #define DEFAULT_TASK_SIZE32	(0xFFF00000UL)
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index 1ba814436c73..04e575ead590 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -111,9 +111,8 @@ void release_thread(struct task_struct *);
  */
 #define TASK_SIZE_USER32 (0x0000000100000000UL - (1*PAGE_SIZE))
 
-#define TASK_SIZE_OF(tsk) (test_tsk_thread_flag(tsk, TIF_32BIT) ? \
+#define TASK_SIZE	(test_thread_flag(TIF_32BIT) ? \
 		TASK_SIZE_USER32 : TASK_SIZE_USER64)
-#define TASK_SIZE	  TASK_SIZE_OF(current)
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 6bca916a5ba0..c53e8e2a51ac 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -89,10 +89,9 @@ extern void execve_tail(void);
  * User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit.
  */
 
-#define TASK_SIZE_OF(tsk)	((tsk)->mm->context.asce_limit)
 #define TASK_UNMAPPED_BASE	(test_thread_flag(TIF_31BIT) ? \
 					(1UL << 30) : (1UL << 41))
-#define TASK_SIZE		TASK_SIZE_OF(current)
+#define TASK_SIZE		(current->mm->context.asce_limit)
 #define TASK_MAX_SIZE		(1UL << 53)
 
 #define STACK_TOP		(1UL << (test_thread_flag(TIF_31BIT) ? 31:42))
diff --git a/arch/sparc/include/asm/processor_64.h b/arch/sparc/include/asm/processor_64.h
index 6448cfc8292f..6ce1a75d7a24 100644
--- a/arch/sparc/include/asm/processor_64.h
+++ b/arch/sparc/include/asm/processor_64.h
@@ -36,9 +36,6 @@
 #define VPTE_SIZE	(1 << (VA_BITS - PAGE_SHIFT + 3))
 #endif
 
-#define TASK_SIZE_OF(tsk) \
-	(test_tsk_thread_flag(tsk,TIF_32BIT) ? \
-	 (1UL << 32UL) : ((unsigned long)-VPTE_SIZE))
 #define TASK_SIZE \
 	(test_thread_flag(TIF_32BIT) ? \
 	 (1UL << 32UL) : ((unsigned long)-VPTE_SIZE))
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index eaf100508c36..090a860b792a 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -819,8 +819,6 @@ static inline void spin_lock_prefetch(const void *x)
 
 #define TASK_SIZE		(test_thread_flag(TIF_ADDR32) ? \
 					IA32_PAGE_OFFSET : TASK_SIZE_MAX)
-#define TASK_SIZE_OF(child)	((test_tsk_thread_flag(child, TIF_ADDR32)) ? \
-					IA32_PAGE_OFFSET : TASK_SIZE_MAX)
 
 #define STACK_TOP		TASK_SIZE
 #define STACK_TOP_MAX		TASK_SIZE_MAX
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4d1905245c7a..7a2e2f3f38a3 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -3610,10 +3610,6 @@ static inline void inc_syscw(struct task_struct *tsk)
 }
 #endif
 
-#ifndef TASK_SIZE_OF
-#define TASK_SIZE_OF(tsk)	TASK_SIZE
-#endif
-
 #ifdef CONFIG_MEMCG
 extern void mm_update_next_owner(struct mm_struct *mm);
 #else
-- 
2.11.0




From - Thu Nov 08 21:39:24 2018
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From: Andy Lutomirski <luto@amacapital.net>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc
Subject: Re: [RFC 1/4] mm: remove unused TASK_SIZE_OF()
Date: Fri, 30 Dec 2016 17:36:31 -0800
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To: Dmitry Safonov <dsafonov@virtuozzo.com>
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On Fri, Dec 30, 2016 at 7:56 AM, Dmitry Safonov <dsafonov@virtuozzo.com> wrote:
> All users of TASK_SIZE_OF(tsk) have migrated to mm->task_size or
> TASK_SIZE_MAX since:
> commit d696ca016d57 ("x86/fsgsbase/64: Use TASK_SIZE_MAX for
> FSBASE/GSBASE upper limits"),
> commit a06db751c321 ("pagemap: check permissions and capabilities at
> open time"),

I like this.

Reviewed-by: Andy Lutomirski <luto@kernel.org> # for x86


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From: Philippe Reynes <tremyfr@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel
Subject: [PATCH] net: dec: de2104x: use new api ethtool_{get|set}_link_ksettings
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The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
---
 drivers/net/ethernet/dec/tulip/de2104x.c |   91 +++++++++++++++++-------------
 1 files changed, 51 insertions(+), 40 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/de2104x.c b/drivers/net/ethernet/dec/tulip/de2104x.c
index 57c17e7..127ce970 100644
--- a/drivers/net/ethernet/dec/tulip/de2104x.c
+++ b/drivers/net/ethernet/dec/tulip/de2104x.c
@@ -1485,95 +1485,104 @@ static void __de_get_regs(struct de_private *de, u8 *buf)
 	de_rx_missed(de, rbuf[8]);
 }
 
-static int __de_get_settings(struct de_private *de, struct ethtool_cmd *ecmd)
+static int __de_get_link_ksettings(struct de_private *de,
+				   struct ethtool_link_ksettings *cmd)
 {
-	ecmd->supported = de->media_supported;
-	ecmd->transceiver = XCVR_INTERNAL;
-	ecmd->phy_address = 0;
-	ecmd->advertising = de->media_advertise;
+	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
+						de->media_supported);
+	cmd->base.phy_address = 0;
+	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
+						de->media_advertise);
 
 	switch (de->media_type) {
 	case DE_MEDIA_AUI:
-		ecmd->port = PORT_AUI;
+		cmd->base.port = PORT_AUI;
 		break;
 	case DE_MEDIA_BNC:
-		ecmd->port = PORT_BNC;
+		cmd->base.port = PORT_BNC;
 		break;
 	default:
-		ecmd->port = PORT_TP;
+		cmd->base.port = PORT_TP;
 		break;
 	}
 
-	ethtool_cmd_speed_set(ecmd, 10);
+	cmd->base.speed = 10;
 
 	if (dr32(MacMode) & FullDuplex)
-		ecmd->duplex = DUPLEX_FULL;
+		cmd->base.duplex = DUPLEX_FULL;
 	else
-		ecmd->duplex = DUPLEX_HALF;
+		cmd->base.duplex = DUPLEX_HALF;
 
 	if (de->media_lock)
-		ecmd->autoneg = AUTONEG_DISABLE;
+		cmd->base.autoneg = AUTONEG_DISABLE;
 	else
-		ecmd->autoneg = AUTONEG_ENABLE;
+		cmd->base.autoneg = AUTONEG_ENABLE;
 
 	/* ignore maxtxpkt, maxrxpkt for now */
 
 	return 0;
 }
 
-static int __de_set_settings(struct de_private *de, struct ethtool_cmd *ecmd)
+static int __de_set_link_ksettings(struct de_private *de,
+				   const struct ethtool_link_ksettings *cmd)
 {
 	u32 new_media;
 	unsigned int media_lock;
+	u8 duplex = cmd->base.duplex;
+	u8 port = cmd->base.port;
+	u8 autoneg = cmd->base.autoneg;
+	u32 advertising;
 
-	if (ethtool_cmd_speed(ecmd) != 10)
-		return -EINVAL;
-	if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
+	ethtool_convert_link_mode_to_legacy_u32(&advertising,
+						cmd->link_modes.advertising);
+
+	if (cmd->base.speed != 10)
 		return -EINVAL;
-	if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI && ecmd->port != PORT_BNC)
+	if (duplex != DUPLEX_HALF && duplex != DUPLEX_FULL)
 		return -EINVAL;
-	if (de->de21040 && ecmd->port == PORT_BNC)
+	if (port != PORT_TP && port != PORT_AUI && port != PORT_BNC)
 		return -EINVAL;
-	if (ecmd->transceiver != XCVR_INTERNAL)
+	if (de->de21040 && port == PORT_BNC)
 		return -EINVAL;
-	if (ecmd->autoneg != AUTONEG_DISABLE && ecmd->autoneg != AUTONEG_ENABLE)
+	if (autoneg != AUTONEG_DISABLE && autoneg != AUTONEG_ENABLE)
 		return -EINVAL;
-	if (ecmd->advertising & ~de->media_supported)
+	if (advertising & ~de->media_supported)
 		return -EINVAL;
-	if (ecmd->autoneg == AUTONEG_ENABLE &&
-	    (!(ecmd->advertising & ADVERTISED_Autoneg)))
+	if (autoneg == AUTONEG_ENABLE &&
+	    (!(advertising & ADVERTISED_Autoneg)))
 		return -EINVAL;
 
-	switch (ecmd->port) {
+	switch (port) {
 	case PORT_AUI:
 		new_media = DE_MEDIA_AUI;
-		if (!(ecmd->advertising & ADVERTISED_AUI))
+		if (!(advertising & ADVERTISED_AUI))
 			return -EINVAL;
 		break;
 	case PORT_BNC:
 		new_media = DE_MEDIA_BNC;
-		if (!(ecmd->advertising & ADVERTISED_BNC))
+		if (!(advertising & ADVERTISED_BNC))
 			return -EINVAL;
 		break;
 	default:
-		if (ecmd->autoneg == AUTONEG_ENABLE)
+		if (autoneg == AUTONEG_ENABLE)
 			new_media = DE_MEDIA_TP_AUTO;
-		else if (ecmd->duplex == DUPLEX_FULL)
+		else if (duplex == DUPLEX_FULL)
 			new_media = DE_MEDIA_TP_FD;
 		else
 			new_media = DE_MEDIA_TP;
-		if (!(ecmd->advertising & ADVERTISED_TP))
+		if (!(advertising & ADVERTISED_TP))
 			return -EINVAL;
-		if (!(ecmd->advertising & (ADVERTISED_10baseT_Full | ADVERTISED_10baseT_Half)))
+		if (!(advertising & (ADVERTISED_10baseT_Full |
+				     ADVERTISED_10baseT_Half)))
 			return -EINVAL;
 		break;
 	}
 
-	media_lock = (ecmd->autoneg == AUTONEG_ENABLE) ? 0 : 1;
+	media_lock = (autoneg == AUTONEG_ENABLE) ? 0 : 1;
 
 	if ((new_media == de->media_type) &&
 	    (media_lock == de->media_lock) &&
-	    (ecmd->advertising == de->media_advertise))
+	    (advertising == de->media_advertise))
 		return 0; /* nothing to change */
 
 	de_link_down(de);
@@ -1582,7 +1591,7 @@ static int __de_set_settings(struct de_private *de, struct ethtool_cmd *ecmd)
 
 	de->media_type = new_media;
 	de->media_lock = media_lock;
-	de->media_advertise = ecmd->advertising;
+	de->media_advertise = advertising;
 	de_set_media(de);
 	if (netif_running(de->dev))
 		de_start_rxtx(de);
@@ -1604,25 +1613,27 @@ static int de_get_regs_len(struct net_device *dev)
 	return DE_REGS_SIZE;
 }
 
-static int de_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+static int de_get_link_ksettings(struct net_device *dev,
+				 struct ethtool_link_ksettings *cmd)
 {
 	struct de_private *de = netdev_priv(dev);
 	int rc;
 
 	spin_lock_irq(&de->lock);
-	rc = __de_get_settings(de, ecmd);
+	rc = __de_get_link_ksettings(de, cmd);
 	spin_unlock_irq(&de->lock);
 
 	return rc;
 }
 
-static int de_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+static int de_set_link_ksettings(struct net_device *dev,
+				 const struct ethtool_link_ksettings *cmd)
 {
 	struct de_private *de = netdev_priv(dev);
 	int rc;
 
 	spin_lock_irq(&de->lock);
-	rc = __de_set_settings(de, ecmd);
+	rc = __de_set_link_ksettings(de, cmd);
 	spin_unlock_irq(&de->lock);
 
 	return rc;
@@ -1690,13 +1701,13 @@ static void de_get_regs(struct net_device *dev, struct ethtool_regs *regs,
 	.get_link		= ethtool_op_get_link,
 	.get_drvinfo		= de_get_drvinfo,
 	.get_regs_len		= de_get_regs_len,
-	.get_settings		= de_get_settings,
-	.set_settings		= de_set_settings,
 	.get_msglevel		= de_get_msglevel,
 	.set_msglevel		= de_set_msglevel,
 	.get_eeprom		= de_get_eeprom,
 	.nway_reset		= de_nway_reset,
 	.get_regs		= de_get_regs,
+	.get_link_ksettings	= de_get_link_ksettings,
+	.set_link_ksettings	= de_set_link_ksettings,
 };
 
 static void de21040_get_mac_address(struct de_private *de)
-- 
1.7.4.4

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From - Thu Nov 08 21:39:24 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Philippe Reynes <tremyfr@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel
Subject: [PATCH] net: dec: uli526x: use new api ethtool_{get|set}_link_ksettings
Date: Sun,  1 Jan 2017 19:11:06 +0100
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The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
---
 drivers/net/ethernet/dec/tulip/uli526x.c |   41 +++++++++++++++++------------
 1 files changed, 24 insertions(+), 17 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/uli526x.c b/drivers/net/ethernet/dec/tulip/uli526x.c
index f82ebe5..8d98b259 100644
--- a/drivers/net/ethernet/dec/tulip/uli526x.c
+++ b/drivers/net/ethernet/dec/tulip/uli526x.c
@@ -926,48 +926,53 @@ static void uli526x_set_filter_mode(struct net_device * dev)
 }
 
 static void
-ULi_ethtool_gset(struct uli526x_board_info *db, struct ethtool_cmd *ecmd)
+ULi_ethtool_get_link_ksettings(struct uli526x_board_info *db,
+			       struct ethtool_link_ksettings *cmd)
 {
-	ecmd->supported = (SUPPORTED_10baseT_Half |
+	u32 supported, advertising;
+
+	supported = (SUPPORTED_10baseT_Half |
 	                   SUPPORTED_10baseT_Full |
 	                   SUPPORTED_100baseT_Half |
 	                   SUPPORTED_100baseT_Full |
 	                   SUPPORTED_Autoneg |
 	                   SUPPORTED_MII);
 
-	ecmd->advertising = (ADVERTISED_10baseT_Half |
+	advertising = (ADVERTISED_10baseT_Half |
 	                   ADVERTISED_10baseT_Full |
 	                   ADVERTISED_100baseT_Half |
 	                   ADVERTISED_100baseT_Full |
 	                   ADVERTISED_Autoneg |
 	                   ADVERTISED_MII);
 
+	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
+						supported);
+	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
+						advertising);
 
-	ecmd->port = PORT_MII;
-	ecmd->phy_address = db->phy_addr;
-
-	ecmd->transceiver = XCVR_EXTERNAL;
+	cmd->base.port = PORT_MII;
+	cmd->base.phy_address = db->phy_addr;
 
-	ethtool_cmd_speed_set(ecmd, SPEED_10);
-	ecmd->duplex = DUPLEX_HALF;
+	cmd->base.speed = SPEED_10;
+	cmd->base.duplex = DUPLEX_HALF;
 
 	if(db->op_mode==ULI526X_100MHF || db->op_mode==ULI526X_100MFD)
 	{
-		ethtool_cmd_speed_set(ecmd, SPEED_100);
+		cmd->base.speed = SPEED_100;
 	}
 	if(db->op_mode==ULI526X_10MFD || db->op_mode==ULI526X_100MFD)
 	{
-		ecmd->duplex = DUPLEX_FULL;
+		cmd->base.duplex = DUPLEX_FULL;
 	}
 	if(db->link_failed)
 	{
-		ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
-		ecmd->duplex = DUPLEX_UNKNOWN;
+		cmd->base.speed = SPEED_UNKNOWN;
+		cmd->base.duplex = DUPLEX_UNKNOWN;
 	}
 
 	if (db->media_mode & ULI526X_AUTO)
 	{
-		ecmd->autoneg = AUTONEG_ENABLE;
+		cmd->base.autoneg = AUTONEG_ENABLE;
 	}
 }
 
@@ -981,10 +986,12 @@ static void netdev_get_drvinfo(struct net_device *dev,
 	strlcpy(info->bus_info, pci_name(np->pdev), sizeof(info->bus_info));
 }
 
-static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) {
+static int netdev_get_link_ksettings(struct net_device *dev,
+				     struct ethtool_link_ksettings *cmd)
+{
 	struct uli526x_board_info *np = netdev_priv(dev);
 
-	ULi_ethtool_gset(np, cmd);
+	ULi_ethtool_get_link_ksettings(np, cmd);
 
 	return 0;
 }
@@ -1006,9 +1013,9 @@ static void uli526x_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 
 static const struct ethtool_ops netdev_ethtool_ops = {
 	.get_drvinfo		= netdev_get_drvinfo,
-	.get_settings		= netdev_get_settings,
 	.get_link		= netdev_get_link,
 	.get_wol		= uli526x_get_wol,
+	.get_link_ksettings	= netdev_get_link_ksettings,
 };
 
 /*
-- 
1.7.4.4

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From - Thu Nov 08 21:39:24 2018
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From: Philippe Reynes <tremyfr@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.network,gmane.linux.ports.parisc
Subject: [PATCH] net: dec: winbond-840: use new api ethtool_{get|set}_link_ksettings
Date: Sun,  1 Jan 2017 20:47:01 +0100
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The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
---
 drivers/net/ethernet/dec/tulip/winbond-840.c |   14 ++++++++------
 1 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/winbond-840.c b/drivers/net/ethernet/dec/tulip/winbond-840.c
index bc9bf88..d1f2f3c 100644
--- a/drivers/net/ethernet/dec/tulip/winbond-840.c
+++ b/drivers/net/ethernet/dec/tulip/winbond-840.c
@@ -1391,25 +1391,27 @@ static void netdev_get_drvinfo (struct net_device *dev, struct ethtool_drvinfo *
 	strlcpy(info->bus_info, pci_name(np->pci_dev), sizeof(info->bus_info));
 }
 
-static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+static int netdev_get_link_ksettings(struct net_device *dev,
+				     struct ethtool_link_ksettings *cmd)
 {
 	struct netdev_private *np = netdev_priv(dev);
 	int rc;
 
 	spin_lock_irq(&np->lock);
-	rc = mii_ethtool_gset(&np->mii_if, cmd);
+	rc = mii_ethtool_get_link_ksettings(&np->mii_if, cmd);
 	spin_unlock_irq(&np->lock);
 
 	return rc;
 }
 
-static int netdev_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+static int netdev_set_link_ksettings(struct net_device *dev,
+				     const struct ethtool_link_ksettings *cmd)
 {
 	struct netdev_private *np = netdev_priv(dev);
 	int rc;
 
 	spin_lock_irq(&np->lock);
-	rc = mii_ethtool_sset(&np->mii_if, cmd);
+	rc = mii_ethtool_set_link_ksettings(&np->mii_if, cmd);
 	spin_unlock_irq(&np->lock);
 
 	return rc;
@@ -1439,12 +1441,12 @@ static void netdev_set_msglevel(struct net_device *dev, u32 value)
 
 static const struct ethtool_ops netdev_ethtool_ops = {
 	.get_drvinfo		= netdev_get_drvinfo,
-	.get_settings		= netdev_get_settings,
-	.set_settings		= netdev_set_settings,
 	.nway_reset		= netdev_nway_reset,
 	.get_link		= netdev_get_link,
 	.get_msglevel		= netdev_get_msglevel,
 	.set_msglevel		= netdev_set_msglevel,
+	.get_link_ksettings	= netdev_get_link_ksettings,
+	.set_link_ksettings	= netdev_set_link_ksettings,
 };
 
 static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-- 
1.7.4.4



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On Fri, Dec 30, 2016 at 06:56:31PM +0300, Dmitry Safonov wrote:
> All users of TASK_SIZE_OF(tsk) have migrated to mm->task_size or
> TASK_SIZE_MAX since:
> commit d696ca016d57 ("x86/fsgsbase/64: Use TASK_SIZE_MAX for
> FSBASE/GSBASE upper limits"),
> commit a06db751c321 ("pagemap: check permissions and capabilities at
> open time"),
> 
> Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com>
> ---
...

> diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
> index 6bca916a5ba0..c53e8e2a51ac 100644
> --- a/arch/s390/include/asm/processor.h
> +++ b/arch/s390/include/asm/processor.h
> @@ -89,10 +89,9 @@ extern void execve_tail(void);
>   * User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit.
>   */
> 
> -#define TASK_SIZE_OF(tsk)	((tsk)->mm->context.asce_limit)
>  #define TASK_UNMAPPED_BASE	(test_thread_flag(TIF_31BIT) ? \
>  					(1UL << 30) : (1UL << 41))
> -#define TASK_SIZE		TASK_SIZE_OF(current)
> +#define TASK_SIZE		(current->mm->context.asce_limit)
>  #define TASK_MAX_SIZE		(1UL << 53)
> 
>  #define STACK_TOP		(1UL << (test_thread_flag(TIF_31BIT) ? 31:42))

FWIW, for the s390 part:

Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>

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On Fri, Dec 30, 2016 at 06:56:31PM +0300, Dmitry Safonov wrote:
> All users of TASK_SIZE_OF(tsk) have migrated to mm->task_size or
> TASK_SIZE_MAX since:
> commit d696ca016d57 ("x86/fsgsbase/64: Use TASK_SIZE_MAX for
> FSBASE/GSBASE upper limits"),
> commit a06db751c321 ("pagemap: check permissions and capabilities at
> open time"),
> 
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will.deacon@arm.com>
> Cc: Ralf Baechle <ralf@linux-mips.org>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-mips@linux-mips.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: linux-s390@vger.kernel.org
> Cc: sparclinux@vger.kernel.org
> Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com>

I've noticed this too.

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>

-- 
 Kirill A. Shutemov
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Subject: Re: [PATCH] serial: 8250: use initializer instead of memset to clear
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On Fri, Dec 23, 2016 at 08:20:26AM +0100, Greg Kroah-Hartman wrote:
> On Fri, Dec 23, 2016 at 12:21:48PM +0900, Masahiro Yamada wrote:
> > Leave the way of zero-out to the compiler's decision; the compiler
> > may know a more optimized way than calling memset().
> 
> But no, it doesn't, it will leave "blank" areas in the structure with
> bad data in it, which is why we do memset.  See the tree-wide fixups we
> made about a year ago for this very issue.  Are you sure none of these
> structures get copied to userspace?
> 
> > It may end up with memset() for big structures like this after all,
> > but the code will be cleaner at least.
> 
> Please leave it as-is, unless you see a measured speedup.

We can probably have both... we have an "optimisation" in ARM for
zero-based memset()s which was beneficial with older compilers, but
I suspect GCC 4 does a much better job itself of optimising
memset().  arch/arm/include/asm/string.h:

#define memset(p,v,n)                                                   \
        ({                                                              \
                void *__p = (p); size_t __n = n;                        \
                if ((__n) != 0) {                                       \
                        if (__builtin_constant_p((v)) && (v) == 0)      \
                                __memzero((__p),(__n));                 \
                        else                                            \
                                memset((__p),(v),(__n));                \
                }                                                       \
                (__p);                                                  \
        })

I suspect we should get rid of that with GCC >= 4.

I also suspect that it'll make no difference for uart_8250_port, as
it's rather large, but for smaller structures (eg, up to a cache line)
GCC can probably optimise to inline initialisation.

So, probably something for resulting code and performance analysis...

It's worth noting that 32-bit x86 always uses __builtin_memset() for
memset() on GCC >= 4, so GCC's memset() optimisations must be safe for
structures copied to userspace, or if not, 32-bit x86 is probably
rather buggy.

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Add a leading line break else printed line gets too long.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v4.9

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 8ff9253..1a0b4f6 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -234,7 +234,7 @@ show_signal_msg(struct pt_regs *regs, unsigned long code,
 	    tsk->comm, code, address);
 	print_vma_addr(KERN_CONT " in ", regs->iaoq[0]);
 
-	pr_cont(" trap #%lu: %s%c", code, trap_name(code),
+	pr_cont("\ntrap #%lu: %s%c", code, trap_name(code),
 		vma ? ',':'\n');
 
 	if (vma)
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From - Thu Nov 08 21:39:25 2018
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From: "Dr. David White" <"wd."@eagle.ocn.ne.jp>
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Subject: Urgent Please;;
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Dear,
With due respect to your person and much sincerity of purpose. I have a business proposal which I will like to handle with you and $14.5 Million USD is involve. But be rest assured that everything is legal and risk free as I have concluded all the arrangements and the legal papers that will back the transaction up. Kindly indicate your interest as to enable me tell you more detail of the proposal. Waiting for your urgent response.

Yours Faithfully,
Dr. David White
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From - Thu Nov 08 21:39:25 2018
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From: Philippe Reynes <tremyfr@gmail.com>
Date: Sun,  1 Jan 2017 19:11:06 +0100

> The ethtool api {get|set}_settings is deprecated.
> We move this driver to new api {get|set}_link_ksettings.
> 
> Signed-off-by: Philippe Reynes <tremyfr@gmail.com>

Applied.


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From: Philippe Reynes <tremyfr@gmail.com>
Date: Sun,  1 Jan 2017 19:05:38 +0100

> The ethtool api {get|set}_settings is deprecated.
> We move this driver to new api {get|set}_link_ksettings.
> 
> Signed-off-by: Philippe Reynes <tremyfr@gmail.com>

Applied.


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From: Philippe Reynes <tremyfr@gmail.com>
Date: Sun,  1 Jan 2017 20:47:01 +0100

> The ethtool api {get|set}_settings is deprecated.
> We move this driver to new api {get|set}_link_ksettings.
> 
> Signed-off-by: Philippe Reynes <tremyfr@gmail.com>

Applied.


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Forwarding to parisc kernel devel list...

On 03.01.2017 11:07, mike@purple-cat.net wrote:
> Hello debian-hppa list members,
> 
> There is new instalation media available at http://prometheus.parisc-linux.org/debian-cd/debian-9.0/debian-9.0r1/
> 
> This allows instalation of the latest unstable/sid release of Debian GNU/Linux for the HP PARISC (hppa) architecture.
> 
> An installation guide will be updated on
> 
> https://parisc.wiki.kernel.org/index.php/Debian_Ports_Installation
> 
> *Installation instructions*
> 
>   * Instructions to burn the ISO image on a Mac: https://discussions.apple.com/thread/5132196
>   * *IMPORTANT: * If your machine has a DVD-drive, you should better burn the image to a DVD disc. The first-generation DVD-drives in some older PA-RISC machines may have problems booting from e.g. a CD-RW so you may get this error message: /IPL error: bad LIF magic./
>   * Those images should work on all machines, with 32- and 64bit kernels. Installation of a C8000 workstation needs to happen via serial console since the install image will not activate the ATI graphics card. After installation the ATI cards will work in non-accelerated mode though.
>   * If your machine is behind a firewall, enter the proxy at the IPL command line the Linux kernel command line (change parameter 7)
>   * Choose the automatic disc partitioning, unless you know all details about disc partitions for PA-RISC (e.g. PALO bootloader needs ext2).
>   * The palo bootloader needs to reside on a SCSI disc. The installer will detect SATA discs and will not complain if you install to a SATA disc!
>   * After reboot add this line to /etc/apt/sources.list and run *apt-get update*:
>   *
> 
>       deb http://ftp.ports.debian.org/debian-ports unstable main
> 
> 
>     Technical background of the install images
> 
>     The installer images: debian-9.0r1-hppa-CD-1.iso and debian-9.0r1-hppa-NETINST-1.iso pull the debian packages from the repositories at http://prometheus.parisc-linux.org/debian-hppa-install/
>     which contains a full archive of the Debian Ports (hppa) 3/01/16
>     This is realized by the /preseed/url=http://prometheus.parisc-linux.org/debian-hppa-install/preseed.9.0r1nb.cfg/ Linux kernel parameter which is hardcoded in the palo bootloader code in those images and require an internet conection to install.
> 
>  
> 
> Please send an installation report, any errors and any feed back to the list debian-hppa@lists.debian.org <mailto:debian-hppa@lists.debian.org>
> 
> Mike Hosken
> mike@purple-cat.net

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From - Thu Nov 08 21:39:25 2018
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Subject: [GIT PULL] parisc architecture updates for v4.10-rc3
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Hi Linus,

please pull three updates for the parisc architecture for kernel 4.10-rc3 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.10-2

Changes include:

- Limit usage of processor-internal cr16 clocksource to UP systems only
- Segfault info lines in syslog were too long, split those up
- Drop own TIF_RESTORE_SIGMASK flag and switch to generic code

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (3):
      parisc: Mark cr16 clocksource unstable on SMP systems
      parisc: Drop TIF_RESTORE_SIGMASK and switch to generic code
      parisc: Add line-break when printing segfault info

 arch/parisc/include/asm/thread_info.h |  1 -
 arch/parisc/kernel/time.c             | 23 ++++++++++++++++++++---
 arch/parisc/mm/fault.c                |  2 +-
 3 files changed, 21 insertions(+), 5 deletions(-)


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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
index dd6d4cc..3858b87 100644
--- a/drivers/parport/parport_gsc.c
+++ b/drivers/parport/parport_gsc.c
@@ -293,7 +293,7 @@ struct parport *parport_gsc_probe_port(unsigned long base,
 		p->irq = PARPORT_IRQ_NONE;
 	}
 	if (p->irq != PARPORT_IRQ_NONE) {
-		printk(", irq %d", p->irq);
+		pr_cont(", irq %d", p->irq);
 
 		if (p->dma == PARPORT_DMA_AUTO) {
 			p->dma = PARPORT_DMA_NONE;
@@ -303,8 +303,8 @@ struct parport *parport_gsc_probe_port(unsigned long base,
                                            is mandatory (see above) */
 		p->dma = PARPORT_DMA_NONE;
 
-	printk(" [");
-#define printmode(x) {if(p->modes&PARPORT_MODE_##x){printk("%s%s",f?",":"",#x);f++;}}
+	pr_cont(" [");
+#define printmode(x) {if(p->modes&PARPORT_MODE_##x){pr_cont("%s%s",f?",":"",#x);f++;}}
 	{
 		int f = 0;
 		printmode(PCSPP);
@@ -315,7 +315,7 @@ struct parport *parport_gsc_probe_port(unsigned long base,
 //		printmode(DMA);
 	}
 #undef printmode
-	printk("]\n");
+	pr_cont("]\n");
 
 	if (p->irq != PARPORT_IRQ_NONE) {
 		if (request_irq (p->irq, parport_irq_handler,
--
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Cc: "linux-mips@linux-mips.org" <linux-mips@linux-mips.org>,
 Peter Zijlstra <peterz@infradead.org>,
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From: Dmitry Safonov
> Sent: 30 December 2016 15:57
> All users of TASK_SIZE_OF(tsk) have migrated to mm->task_size or
> TASK_SIZE_MAX since:
> commit d696ca016d57 ("x86/fsgsbase/64: Use TASK_SIZE_MAX for
> FSBASE/GSBASE upper limits"),
> commit a06db751c321 ("pagemap: check permissions and capabilities at
> open time"),
...
> +#define TASK_SIZE	        (current->thread.task_size)

I'm not sure I like he hidden 'current' argument to an
apparent constant.

	David

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On Thu, Jan 5, 2017 at 1:51 AM, David Laight <David.Laight@aculab.com> wrote:
> From: Dmitry Safonov
>> Sent: 30 December 2016 15:57
>> All users of TASK_SIZE_OF(tsk) have migrated to mm->task_size or
>> TASK_SIZE_MAX since:
>> commit d696ca016d57 ("x86/fsgsbase/64: Use TASK_SIZE_MAX for
>> FSBASE/GSBASE upper limits"),
>> commit a06db751c321 ("pagemap: check permissions and capabilities at
>> open time"),
> ...
>> +#define TASK_SIZE            (current->thread.task_size)
>
> I'm not sure I like he hidden 'current' argument to an
> apparent constant.

Me neither.  But this patch is merely changing the implementation.

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Subject: [PATCH v2 0/7] uapi: export all headers under uapi directories
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Here is the v2 of this series. The first 5 patches are just cleanup: some
exported headers were still under a non-uapi directory.
The patch 6 was spotted by code review: there is no in-tree user of this
functionality.
The last patch remove the use of header-y. Now all files under an uapi
directory are exported.

asm is a bit special, most of architectures export asm/<arch>/include/uapi/asm
only, but there is two exceptions:
 - cris which exports arch/cris/include/uapi/arch-v[10|32];
 - tile which exports arch/tile/include/uapi/arch.
Because I don't know if the output of 'make headers_install_all' can be changed,
I introduce subdir-y in Kbuild file. The headers_install_all target copies all
asm/<arch>/include/uapi/asm to usr/include/asm-<arch> but
arch/cris/include/uapi/arch-v[10|32] and arch/tile/include/uapi/arch are not
prefixed (they are put asis in usr/include/). If it's acceptable to modify the
output of 'make headers_install_all' to export asm headers in
usr/include/asm-<arch>/asm, then I could remove this new subdir-y and exports
everything under arch/<arch>/include/uapi/.

Note also that exported files for asm are a mix of files listed by:
 - include/uapi/asm-generic/Kbuild.asm;
 - arch/x86/include/uapi/asm/Kbuild;
 - arch/x86/include/asm/Kbuild.
This complicates a lot the processing (arch/x86/include/asm/Kbuild is also
used by scripts/Makefile.asm-generic).

This series has been tested with a 'make headers_install' on x86 and a
'make headers_install_all'. I've checked the result of both commands.

This patch is built against linus tree. I don't know if it should be
made against antoher tree.

Comments are welcomed,
Nicolas



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Subject: [PATCH v2 3/7] nios2: put setup.h in uapi
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 Nicolas Dichtel <nicolas.dichtel@6wind.com>, linux-me
To: arnd@arndb.de
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This header file is exported, thus move it to uapi.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
---
 arch/nios2/include/asm/setup.h      | 2 +-
 arch/nios2/include/uapi/asm/setup.h | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)
 create mode 100644 arch/nios2/include/uapi/asm/setup.h

diff --git a/arch/nios2/include/asm/setup.h b/arch/nios2/include/asm/setup.h
index dcbf8cf1a344..d49e9e91bf55 100644
--- a/arch/nios2/include/asm/setup.h
+++ b/arch/nios2/include/asm/setup.h
@@ -19,7 +19,7 @@
 #ifndef _ASM_NIOS2_SETUP_H
 #define _ASM_NIOS2_SETUP_H
 
-#include <asm-generic/setup.h>
+#include <uapi/asm/setup.h>
 
 #ifndef __ASSEMBLY__
 #ifdef __KERNEL__
diff --git a/arch/nios2/include/uapi/asm/setup.h b/arch/nios2/include/uapi/asm/setup.h
new file mode 100644
index 000000000000..8d8285997ba8
--- /dev/null
+++ b/arch/nios2/include/uapi/asm/setup.h
@@ -0,0 +1,6 @@
+#ifndef _UAPI_ASM_NIOS2_SETUP_H
+#define _UAPI_ASM_NIOS2_SETUP_H
+
+#include <asm-generic/setup.h>
+
+#endif /* _UAPI_ASM_NIOS2_SETUP_H */
-- 
2.8.1

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 Nicolas Dichtel <nicolas.dichtel@6wind.com>, linux-me
To: arnd@arndb.de
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From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
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Subject: [PATCH v2 2/7] h8300: put bitsperlong.h in uapi
Date: Fri,  6 Jan 2017 10:43:54 +0100
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Path: news.gmane.org!.POSTED!not-for-mail
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kbuild.devel,gmane.linux.documentation,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.comp.video.dri.devel,gmane.linux.network,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kernel.mmc,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.nfs,gmane.linux.raid,gmane.linux.kernel.spi.devel,gmane.linux.drivers.mtd,gmane.linux.drivers.rdma,gmane.linux.scsi.open-fcoe.devel,gmane.linux.alsa.devel
Subject: [PATCH v2 4/7] x86: put msr-index.h in uapi
Date: Fri,  6 Jan 2017 10:43:56 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2381507>

This header file is exported, thus move it to uapi.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
---
 arch/x86/include/asm/msr-index.h      | 694 +--------------------------------
 arch/x86/include/uapi/asm/msr-index.h | 698 ++++++++++++++++++++++++++++++++++
 2 files changed, 699 insertions(+), 693 deletions(-)
 create mode 100644 arch/x86/include/uapi/asm/msr-index.h

diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 710273c617b8..1baa0628da74 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -1,698 +1,6 @@
 #ifndef _ASM_X86_MSR_INDEX_H
 #define _ASM_X86_MSR_INDEX_H
 
-/*
- * CPU model specific register (MSR) numbers.
- *
- * Do not add new entries to this file unless the definitions are shared
- * between multiple compilation units.
- */
-
-/* x86-64 specific MSRs */
-#define MSR_EFER		0xc0000080 /* extended feature register */
-#define MSR_STAR		0xc0000081 /* legacy mode SYSCALL target */
-#define MSR_LSTAR		0xc0000082 /* long mode SYSCALL target */
-#define MSR_CSTAR		0xc0000083 /* compat mode SYSCALL target */
-#define MSR_SYSCALL_MASK	0xc0000084 /* EFLAGS mask for syscall */
-#define MSR_FS_BASE		0xc0000100 /* 64bit FS base */
-#define MSR_GS_BASE		0xc0000101 /* 64bit GS base */
-#define MSR_KERNEL_GS_BASE	0xc0000102 /* SwapGS GS shadow */
-#define MSR_TSC_AUX		0xc0000103 /* Auxiliary TSC */
-
-/* EFER bits: */
-#define _EFER_SCE		0  /* SYSCALL/SYSRET */
-#define _EFER_LME		8  /* Long mode enable */
-#define _EFER_LMA		10 /* Long mode active (read-only) */
-#define _EFER_NX		11 /* No execute enable */
-#define _EFER_SVME		12 /* Enable virtualization */
-#define _EFER_LMSLE		13 /* Long Mode Segment Limit Enable */
-#define _EFER_FFXSR		14 /* Enable Fast FXSAVE/FXRSTOR */
-
-#define EFER_SCE		(1<<_EFER_SCE)
-#define EFER_LME		(1<<_EFER_LME)
-#define EFER_LMA		(1<<_EFER_LMA)
-#define EFER_NX			(1<<_EFER_NX)
-#define EFER_SVME		(1<<_EFER_SVME)
-#define EFER_LMSLE		(1<<_EFER_LMSLE)
-#define EFER_FFXSR		(1<<_EFER_FFXSR)
-
-/* Intel MSRs. Some also available on other CPUs */
-
-#define MSR_PPIN_CTL			0x0000004e
-#define MSR_PPIN			0x0000004f
-
-#define MSR_IA32_PERFCTR0		0x000000c1
-#define MSR_IA32_PERFCTR1		0x000000c2
-#define MSR_FSB_FREQ			0x000000cd
-#define MSR_PLATFORM_INFO		0x000000ce
-
-#define MSR_NHM_SNB_PKG_CST_CFG_CTL	0x000000e2
-#define NHM_C3_AUTO_DEMOTE		(1UL << 25)
-#define NHM_C1_AUTO_DEMOTE		(1UL << 26)
-#define ATM_LNC_C6_AUTO_DEMOTE		(1UL << 25)
-#define SNB_C1_AUTO_UNDEMOTE		(1UL << 27)
-#define SNB_C3_AUTO_UNDEMOTE		(1UL << 28)
-
-#define MSR_MTRRcap			0x000000fe
-#define MSR_IA32_BBL_CR_CTL		0x00000119
-#define MSR_IA32_BBL_CR_CTL3		0x0000011e
-
-#define MSR_IA32_SYSENTER_CS		0x00000174
-#define MSR_IA32_SYSENTER_ESP		0x00000175
-#define MSR_IA32_SYSENTER_EIP		0x00000176
-
-#define MSR_IA32_MCG_CAP		0x00000179
-#define MSR_IA32_MCG_STATUS		0x0000017a
-#define MSR_IA32_MCG_CTL		0x0000017b
-#define MSR_IA32_MCG_EXT_CTL		0x000004d0
-
-#define MSR_OFFCORE_RSP_0		0x000001a6
-#define MSR_OFFCORE_RSP_1		0x000001a7
-#define MSR_TURBO_RATIO_LIMIT		0x000001ad
-#define MSR_TURBO_RATIO_LIMIT1		0x000001ae
-#define MSR_TURBO_RATIO_LIMIT2		0x000001af
-
-#define MSR_LBR_SELECT			0x000001c8
-#define MSR_LBR_TOS			0x000001c9
-#define MSR_LBR_NHM_FROM		0x00000680
-#define MSR_LBR_NHM_TO			0x000006c0
-#define MSR_LBR_CORE_FROM		0x00000040
-#define MSR_LBR_CORE_TO			0x00000060
-
-#define MSR_LBR_INFO_0			0x00000dc0 /* ... 0xddf for _31 */
-#define LBR_INFO_MISPRED		BIT_ULL(63)
-#define LBR_INFO_IN_TX			BIT_ULL(62)
-#define LBR_INFO_ABORT			BIT_ULL(61)
-#define LBR_INFO_CYCLES			0xffff
-
-#define MSR_IA32_PEBS_ENABLE		0x000003f1
-#define MSR_IA32_DS_AREA		0x00000600
-#define MSR_IA32_PERF_CAPABILITIES	0x00000345
-#define MSR_PEBS_LD_LAT_THRESHOLD	0x000003f6
-
-#define MSR_IA32_RTIT_CTL		0x00000570
-#define MSR_IA32_RTIT_STATUS		0x00000571
-#define MSR_IA32_RTIT_ADDR0_A		0x00000580
-#define MSR_IA32_RTIT_ADDR0_B		0x00000581
-#define MSR_IA32_RTIT_ADDR1_A		0x00000582
-#define MSR_IA32_RTIT_ADDR1_B		0x00000583
-#define MSR_IA32_RTIT_ADDR2_A		0x00000584
-#define MSR_IA32_RTIT_ADDR2_B		0x00000585
-#define MSR_IA32_RTIT_ADDR3_A		0x00000586
-#define MSR_IA32_RTIT_ADDR3_B		0x00000587
-#define MSR_IA32_RTIT_CR3_MATCH		0x00000572
-#define MSR_IA32_RTIT_OUTPUT_BASE	0x00000560
-#define MSR_IA32_RTIT_OUTPUT_MASK	0x00000561
-
-#define MSR_MTRRfix64K_00000		0x00000250
-#define MSR_MTRRfix16K_80000		0x00000258
-#define MSR_MTRRfix16K_A0000		0x00000259
-#define MSR_MTRRfix4K_C0000		0x00000268
-#define MSR_MTRRfix4K_C8000		0x00000269
-#define MSR_MTRRfix4K_D0000		0x0000026a
-#define MSR_MTRRfix4K_D8000		0x0000026b
-#define MSR_MTRRfix4K_E0000		0x0000026c
-#define MSR_MTRRfix4K_E8000		0x0000026d
-#define MSR_MTRRfix4K_F0000		0x0000026e
-#define MSR_MTRRfix4K_F8000		0x0000026f
-#define MSR_MTRRdefType			0x000002ff
-
-#define MSR_IA32_CR_PAT			0x00000277
-
-#define MSR_IA32_DEBUGCTLMSR		0x000001d9
-#define MSR_IA32_LASTBRANCHFROMIP	0x000001db
-#define MSR_IA32_LASTBRANCHTOIP		0x000001dc
-#define MSR_IA32_LASTINTFROMIP		0x000001dd
-#define MSR_IA32_LASTINTTOIP		0x000001de
-
-/* DEBUGCTLMSR bits (others vary by model): */
-#define DEBUGCTLMSR_LBR			(1UL <<  0) /* last branch recording */
-#define DEBUGCTLMSR_BTF			(1UL <<  1) /* single-step on branches */
-#define DEBUGCTLMSR_TR			(1UL <<  6)
-#define DEBUGCTLMSR_BTS			(1UL <<  7)
-#define DEBUGCTLMSR_BTINT		(1UL <<  8)
-#define DEBUGCTLMSR_BTS_OFF_OS		(1UL <<  9)
-#define DEBUGCTLMSR_BTS_OFF_USR		(1UL << 10)
-#define DEBUGCTLMSR_FREEZE_LBRS_ON_PMI	(1UL << 11)
-
-#define MSR_PEBS_FRONTEND		0x000003f7
-
-#define MSR_IA32_POWER_CTL		0x000001fc
-
-#define MSR_IA32_MC0_CTL		0x00000400
-#define MSR_IA32_MC0_STATUS		0x00000401
-#define MSR_IA32_MC0_ADDR		0x00000402
-#define MSR_IA32_MC0_MISC		0x00000403
-
-/* C-state Residency Counters */
-#define MSR_PKG_C3_RESIDENCY		0x000003f8
-#define MSR_PKG_C6_RESIDENCY		0x000003f9
-#define MSR_PKG_C7_RESIDENCY		0x000003fa
-#define MSR_CORE_C3_RESIDENCY		0x000003fc
-#define MSR_CORE_C6_RESIDENCY		0x000003fd
-#define MSR_CORE_C7_RESIDENCY		0x000003fe
-#define MSR_KNL_CORE_C6_RESIDENCY	0x000003ff
-#define MSR_PKG_C2_RESIDENCY		0x0000060d
-#define MSR_PKG_C8_RESIDENCY		0x00000630
-#define MSR_PKG_C9_RESIDENCY		0x00000631
-#define MSR_PKG_C10_RESIDENCY		0x00000632
-
-/* Interrupt Response Limit */
-#define MSR_PKGC3_IRTL			0x0000060a
-#define MSR_PKGC6_IRTL			0x0000060b
-#define MSR_PKGC7_IRTL			0x0000060c
-#define MSR_PKGC8_IRTL			0x00000633
-#define MSR_PKGC9_IRTL			0x00000634
-#define MSR_PKGC10_IRTL			0x00000635
-
-/* Run Time Average Power Limiting (RAPL) Interface */
-
-#define MSR_RAPL_POWER_UNIT		0x00000606
-
-#define MSR_PKG_POWER_LIMIT		0x00000610
-#define MSR_PKG_ENERGY_STATUS		0x00000611
-#define MSR_PKG_PERF_STATUS		0x00000613
-#define MSR_PKG_POWER_INFO		0x00000614
-
-#define MSR_DRAM_POWER_LIMIT		0x00000618
-#define MSR_DRAM_ENERGY_STATUS		0x00000619
-#define MSR_DRAM_PERF_STATUS		0x0000061b
-#define MSR_DRAM_POWER_INFO		0x0000061c
-
-#define MSR_PP0_POWER_LIMIT		0x00000638
-#define MSR_PP0_ENERGY_STATUS		0x00000639
-#define MSR_PP0_POLICY			0x0000063a
-#define MSR_PP0_PERF_STATUS		0x0000063b
-
-#define MSR_PP1_POWER_LIMIT		0x00000640
-#define MSR_PP1_ENERGY_STATUS		0x00000641
-#define MSR_PP1_POLICY			0x00000642
-
-/* Config TDP MSRs */
-#define MSR_CONFIG_TDP_NOMINAL		0x00000648
-#define MSR_CONFIG_TDP_LEVEL_1		0x00000649
-#define MSR_CONFIG_TDP_LEVEL_2		0x0000064A
-#define MSR_CONFIG_TDP_CONTROL		0x0000064B
-#define MSR_TURBO_ACTIVATION_RATIO	0x0000064C
-
-#define MSR_PLATFORM_ENERGY_STATUS	0x0000064D
-
-#define MSR_PKG_WEIGHTED_CORE_C0_RES	0x00000658
-#define MSR_PKG_ANY_CORE_C0_RES		0x00000659
-#define MSR_PKG_ANY_GFXE_C0_RES		0x0000065A
-#define MSR_PKG_BOTH_CORE_GFXE_C0_RES	0x0000065B
-
-#define MSR_CORE_C1_RES			0x00000660
-
-#define MSR_CC6_DEMOTION_POLICY_CONFIG	0x00000668
-#define MSR_MC6_DEMOTION_POLICY_CONFIG	0x00000669
-
-#define MSR_CORE_PERF_LIMIT_REASONS	0x00000690
-#define MSR_GFX_PERF_LIMIT_REASONS	0x000006B0
-#define MSR_RING_PERF_LIMIT_REASONS	0x000006B1
-
-/* Hardware P state interface */
-#define MSR_PPERF			0x0000064e
-#define MSR_PERF_LIMIT_REASONS		0x0000064f
-#define MSR_PM_ENABLE			0x00000770
-#define MSR_HWP_CAPABILITIES		0x00000771
-#define MSR_HWP_REQUEST_PKG		0x00000772
-#define MSR_HWP_INTERRUPT		0x00000773
-#define MSR_HWP_REQUEST 		0x00000774
-#define MSR_HWP_STATUS			0x00000777
-
-/* CPUID.6.EAX */
-#define HWP_BASE_BIT			(1<<7)
-#define HWP_NOTIFICATIONS_BIT		(1<<8)
-#define HWP_ACTIVITY_WINDOW_BIT		(1<<9)
-#define HWP_ENERGY_PERF_PREFERENCE_BIT	(1<<10)
-#define HWP_PACKAGE_LEVEL_REQUEST_BIT	(1<<11)
-
-/* IA32_HWP_CAPABILITIES */
-#define HWP_HIGHEST_PERF(x)		(((x) >> 0) & 0xff)
-#define HWP_GUARANTEED_PERF(x)		(((x) >> 8) & 0xff)
-#define HWP_MOSTEFFICIENT_PERF(x)	(((x) >> 16) & 0xff)
-#define HWP_LOWEST_PERF(x)		(((x) >> 24) & 0xff)
-
-/* IA32_HWP_REQUEST */
-#define HWP_MIN_PERF(x) 		(x & 0xff)
-#define HWP_MAX_PERF(x) 		((x & 0xff) << 8)
-#define HWP_DESIRED_PERF(x)		((x & 0xff) << 16)
-#define HWP_ENERGY_PERF_PREFERENCE(x)	((x & 0xff) << 24)
-#define HWP_ACTIVITY_WINDOW(x)		((x & 0xff3) << 32)
-#define HWP_PACKAGE_CONTROL(x)		((x & 0x1) << 42)
-
-/* IA32_HWP_STATUS */
-#define HWP_GUARANTEED_CHANGE(x)	(x & 0x1)
-#define HWP_EXCURSION_TO_MINIMUM(x)	(x & 0x4)
-
-/* IA32_HWP_INTERRUPT */
-#define HWP_CHANGE_TO_GUARANTEED_INT(x)	(x & 0x1)
-#define HWP_EXCURSION_TO_MINIMUM_INT(x)	(x & 0x2)
-
-#define MSR_AMD64_MC0_MASK		0xc0010044
-
-#define MSR_IA32_MCx_CTL(x)		(MSR_IA32_MC0_CTL + 4*(x))
-#define MSR_IA32_MCx_STATUS(x)		(MSR_IA32_MC0_STATUS + 4*(x))
-#define MSR_IA32_MCx_ADDR(x)		(MSR_IA32_MC0_ADDR + 4*(x))
-#define MSR_IA32_MCx_MISC(x)		(MSR_IA32_MC0_MISC + 4*(x))
-
-#define MSR_AMD64_MCx_MASK(x)		(MSR_AMD64_MC0_MASK + (x))
-
-/* These are consecutive and not in the normal 4er MCE bank block */
-#define MSR_IA32_MC0_CTL2		0x00000280
-#define MSR_IA32_MCx_CTL2(x)		(MSR_IA32_MC0_CTL2 + (x))
-
-#define MSR_P6_PERFCTR0			0x000000c1
-#define MSR_P6_PERFCTR1			0x000000c2
-#define MSR_P6_EVNTSEL0			0x00000186
-#define MSR_P6_EVNTSEL1			0x00000187
-
-#define MSR_KNC_PERFCTR0               0x00000020
-#define MSR_KNC_PERFCTR1               0x00000021
-#define MSR_KNC_EVNTSEL0               0x00000028
-#define MSR_KNC_EVNTSEL1               0x00000029
-
-/* Alternative perfctr range with full access. */
-#define MSR_IA32_PMC0			0x000004c1
-
-/* AMD64 MSRs. Not complete. See the architecture manual for a more
-   complete list. */
-
-#define MSR_AMD64_PATCH_LEVEL		0x0000008b
-#define MSR_AMD64_TSC_RATIO		0xc0000104
-#define MSR_AMD64_NB_CFG		0xc001001f
-#define MSR_AMD64_PATCH_LOADER		0xc0010020
-#define MSR_AMD64_OSVW_ID_LENGTH	0xc0010140
-#define MSR_AMD64_OSVW_STATUS		0xc0010141
-#define MSR_AMD64_LS_CFG		0xc0011020
-#define MSR_AMD64_DC_CFG		0xc0011022
-#define MSR_AMD64_BU_CFG2		0xc001102a
-#define MSR_AMD64_IBSFETCHCTL		0xc0011030
-#define MSR_AMD64_IBSFETCHLINAD		0xc0011031
-#define MSR_AMD64_IBSFETCHPHYSAD	0xc0011032
-#define MSR_AMD64_IBSFETCH_REG_COUNT	3
-#define MSR_AMD64_IBSFETCH_REG_MASK	((1UL<<MSR_AMD64_IBSFETCH_REG_COUNT)-1)
-#define MSR_AMD64_IBSOPCTL		0xc0011033
-#define MSR_AMD64_IBSOPRIP		0xc0011034
-#define MSR_AMD64_IBSOPDATA		0xc0011035
-#define MSR_AMD64_IBSOPDATA2		0xc0011036
-#define MSR_AMD64_IBSOPDATA3		0xc0011037
-#define MSR_AMD64_IBSDCLINAD		0xc0011038
-#define MSR_AMD64_IBSDCPHYSAD		0xc0011039
-#define MSR_AMD64_IBSOP_REG_COUNT	7
-#define MSR_AMD64_IBSOP_REG_MASK	((1UL<<MSR_AMD64_IBSOP_REG_COUNT)-1)
-#define MSR_AMD64_IBSCTL		0xc001103a
-#define MSR_AMD64_IBSBRTARGET		0xc001103b
-#define MSR_AMD64_IBSOPDATA4		0xc001103d
-#define MSR_AMD64_IBS_REG_COUNT_MAX	8 /* includes MSR_AMD64_IBSBRTARGET */
-
-/* Fam 17h MSRs */
-#define MSR_F17H_IRPERF			0xc00000e9
-
-/* Fam 16h MSRs */
-#define MSR_F16H_L2I_PERF_CTL		0xc0010230
-#define MSR_F16H_L2I_PERF_CTR		0xc0010231
-#define MSR_F16H_DR1_ADDR_MASK		0xc0011019
-#define MSR_F16H_DR2_ADDR_MASK		0xc001101a
-#define MSR_F16H_DR3_ADDR_MASK		0xc001101b
-#define MSR_F16H_DR0_ADDR_MASK		0xc0011027
-
-/* Fam 15h MSRs */
-#define MSR_F15H_PERF_CTL		0xc0010200
-#define MSR_F15H_PERF_CTR		0xc0010201
-#define MSR_F15H_NB_PERF_CTL		0xc0010240
-#define MSR_F15H_NB_PERF_CTR		0xc0010241
-#define MSR_F15H_PTSC			0xc0010280
-#define MSR_F15H_IC_CFG			0xc0011021
-
-/* Fam 10h MSRs */
-#define MSR_FAM10H_MMIO_CONF_BASE	0xc0010058
-#define FAM10H_MMIO_CONF_ENABLE		(1<<0)
-#define FAM10H_MMIO_CONF_BUSRANGE_MASK	0xf
-#define FAM10H_MMIO_CONF_BUSRANGE_SHIFT 2
-#define FAM10H_MMIO_CONF_BASE_MASK	0xfffffffULL
-#define FAM10H_MMIO_CONF_BASE_SHIFT	20
-#define MSR_FAM10H_NODE_ID		0xc001100c
-
-/* K8 MSRs */
-#define MSR_K8_TOP_MEM1			0xc001001a
-#define MSR_K8_TOP_MEM2			0xc001001d
-#define MSR_K8_SYSCFG			0xc0010010
-#define MSR_K8_INT_PENDING_MSG		0xc0010055
-/* C1E active bits in int pending message */
-#define K8_INTP_C1E_ACTIVE_MASK		0x18000000
-#define MSR_K8_TSEG_ADDR		0xc0010112
-#define MSR_K8_TSEG_MASK		0xc0010113
-#define K8_MTRRFIXRANGE_DRAM_ENABLE	0x00040000 /* MtrrFixDramEn bit    */
-#define K8_MTRRFIXRANGE_DRAM_MODIFY	0x00080000 /* MtrrFixDramModEn bit */
-#define K8_MTRR_RDMEM_WRMEM_MASK	0x18181818 /* Mask: RdMem|WrMem    */
-
-/* K7 MSRs */
-#define MSR_K7_EVNTSEL0			0xc0010000
-#define MSR_K7_PERFCTR0			0xc0010004
-#define MSR_K7_EVNTSEL1			0xc0010001
-#define MSR_K7_PERFCTR1			0xc0010005
-#define MSR_K7_EVNTSEL2			0xc0010002
-#define MSR_K7_PERFCTR2			0xc0010006
-#define MSR_K7_EVNTSEL3			0xc0010003
-#define MSR_K7_PERFCTR3			0xc0010007
-#define MSR_K7_CLK_CTL			0xc001001b
-#define MSR_K7_HWCR			0xc0010015
-#define MSR_K7_FID_VID_CTL		0xc0010041
-#define MSR_K7_FID_VID_STATUS		0xc0010042
-
-/* K6 MSRs */
-#define MSR_K6_WHCR			0xc0000082
-#define MSR_K6_UWCCR			0xc0000085
-#define MSR_K6_EPMR			0xc0000086
-#define MSR_K6_PSOR			0xc0000087
-#define MSR_K6_PFIR			0xc0000088
-
-/* Centaur-Hauls/IDT defined MSRs. */
-#define MSR_IDT_FCR1			0x00000107
-#define MSR_IDT_FCR2			0x00000108
-#define MSR_IDT_FCR3			0x00000109
-#define MSR_IDT_FCR4			0x0000010a
-
-#define MSR_IDT_MCR0			0x00000110
-#define MSR_IDT_MCR1			0x00000111
-#define MSR_IDT_MCR2			0x00000112
-#define MSR_IDT_MCR3			0x00000113
-#define MSR_IDT_MCR4			0x00000114
-#define MSR_IDT_MCR5			0x00000115
-#define MSR_IDT_MCR6			0x00000116
-#define MSR_IDT_MCR7			0x00000117
-#define MSR_IDT_MCR_CTRL		0x00000120
-
-/* VIA Cyrix defined MSRs*/
-#define MSR_VIA_FCR			0x00001107
-#define MSR_VIA_LONGHAUL		0x0000110a
-#define MSR_VIA_RNG			0x0000110b
-#define MSR_VIA_BCR2			0x00001147
-
-/* Transmeta defined MSRs */
-#define MSR_TMTA_LONGRUN_CTRL		0x80868010
-#define MSR_TMTA_LONGRUN_FLAGS		0x80868011
-#define MSR_TMTA_LRTI_READOUT		0x80868018
-#define MSR_TMTA_LRTI_VOLT_MHZ		0x8086801a
-
-/* Intel defined MSRs. */
-#define MSR_IA32_P5_MC_ADDR		0x00000000
-#define MSR_IA32_P5_MC_TYPE		0x00000001
-#define MSR_IA32_TSC			0x00000010
-#define MSR_IA32_PLATFORM_ID		0x00000017
-#define MSR_IA32_EBL_CR_POWERON		0x0000002a
-#define MSR_EBC_FREQUENCY_ID		0x0000002c
-#define MSR_SMI_COUNT			0x00000034
-#define MSR_IA32_FEATURE_CONTROL        0x0000003a
-#define MSR_IA32_TSC_ADJUST             0x0000003b
-#define MSR_IA32_BNDCFGS		0x00000d90
-
-#define MSR_IA32_XSS			0x00000da0
-
-#define FEATURE_CONTROL_LOCKED				(1<<0)
-#define FEATURE_CONTROL_VMXON_ENABLED_INSIDE_SMX	(1<<1)
-#define FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX	(1<<2)
-#define FEATURE_CONTROL_LMCE				(1<<20)
-
-#define MSR_IA32_APICBASE		0x0000001b
-#define MSR_IA32_APICBASE_BSP		(1<<8)
-#define MSR_IA32_APICBASE_ENABLE	(1<<11)
-#define MSR_IA32_APICBASE_BASE		(0xfffff<<12)
-
-#define MSR_IA32_TSCDEADLINE		0x000006e0
-
-#define MSR_IA32_UCODE_WRITE		0x00000079
-#define MSR_IA32_UCODE_REV		0x0000008b
-
-#define MSR_IA32_SMM_MONITOR_CTL	0x0000009b
-#define MSR_IA32_SMBASE			0x0000009e
-
-#define MSR_IA32_PERF_STATUS		0x00000198
-#define MSR_IA32_PERF_CTL		0x00000199
-#define INTEL_PERF_CTL_MASK		0xffff
-#define MSR_AMD_PSTATE_DEF_BASE		0xc0010064
-#define MSR_AMD_PERF_STATUS		0xc0010063
-#define MSR_AMD_PERF_CTL		0xc0010062
-
-#define MSR_IA32_MPERF			0x000000e7
-#define MSR_IA32_APERF			0x000000e8
-
-#define MSR_IA32_THERM_CONTROL		0x0000019a
-#define MSR_IA32_THERM_INTERRUPT	0x0000019b
-
-#define THERM_INT_HIGH_ENABLE		(1 << 0)
-#define THERM_INT_LOW_ENABLE		(1 << 1)
-#define THERM_INT_PLN_ENABLE		(1 << 24)
-
-#define MSR_IA32_THERM_STATUS		0x0000019c
-
-#define THERM_STATUS_PROCHOT		(1 << 0)
-#define THERM_STATUS_POWER_LIMIT	(1 << 10)
-
-#define MSR_THERM2_CTL			0x0000019d
-
-#define MSR_THERM2_CTL_TM_SELECT	(1ULL << 16)
-
-#define MSR_IA32_MISC_ENABLE		0x000001a0
-
-#define MSR_IA32_TEMPERATURE_TARGET	0x000001a2
-
-#define MSR_MISC_PWR_MGMT		0x000001aa
-
-#define MSR_IA32_ENERGY_PERF_BIAS	0x000001b0
-#define ENERGY_PERF_BIAS_PERFORMANCE	0
-#define ENERGY_PERF_BIAS_NORMAL		6
-#define ENERGY_PERF_BIAS_POWERSAVE	15
-
-#define MSR_IA32_PACKAGE_THERM_STATUS		0x000001b1
-
-#define PACKAGE_THERM_STATUS_PROCHOT		(1 << 0)
-#define PACKAGE_THERM_STATUS_POWER_LIMIT	(1 << 10)
-
-#define MSR_IA32_PACKAGE_THERM_INTERRUPT	0x000001b2
-
-#define PACKAGE_THERM_INT_HIGH_ENABLE		(1 << 0)
-#define PACKAGE_THERM_INT_LOW_ENABLE		(1 << 1)
-#define PACKAGE_THERM_INT_PLN_ENABLE		(1 << 24)
-
-/* Thermal Thresholds Support */
-#define THERM_INT_THRESHOLD0_ENABLE    (1 << 15)
-#define THERM_SHIFT_THRESHOLD0        8
-#define THERM_MASK_THRESHOLD0          (0x7f << THERM_SHIFT_THRESHOLD0)
-#define THERM_INT_THRESHOLD1_ENABLE    (1 << 23)
-#define THERM_SHIFT_THRESHOLD1        16
-#define THERM_MASK_THRESHOLD1          (0x7f << THERM_SHIFT_THRESHOLD1)
-#define THERM_STATUS_THRESHOLD0        (1 << 6)
-#define THERM_LOG_THRESHOLD0           (1 << 7)
-#define THERM_STATUS_THRESHOLD1        (1 << 8)
-#define THERM_LOG_THRESHOLD1           (1 << 9)
-
-/* MISC_ENABLE bits: architectural */
-#define MSR_IA32_MISC_ENABLE_FAST_STRING_BIT		0
-#define MSR_IA32_MISC_ENABLE_FAST_STRING		(1ULL << MSR_IA32_MISC_ENABLE_FAST_STRING_BIT)
-#define MSR_IA32_MISC_ENABLE_TCC_BIT			1
-#define MSR_IA32_MISC_ENABLE_TCC			(1ULL << MSR_IA32_MISC_ENABLE_TCC_BIT)
-#define MSR_IA32_MISC_ENABLE_EMON_BIT			7
-#define MSR_IA32_MISC_ENABLE_EMON			(1ULL << MSR_IA32_MISC_ENABLE_EMON_BIT)
-#define MSR_IA32_MISC_ENABLE_BTS_UNAVAIL_BIT		11
-#define MSR_IA32_MISC_ENABLE_BTS_UNAVAIL		(1ULL << MSR_IA32_MISC_ENABLE_BTS_UNAVAIL_BIT)
-#define MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL_BIT		12
-#define MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL		(1ULL << MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL_BIT)
-#define MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP_BIT	16
-#define MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP		(1ULL << MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP_BIT)
-#define MSR_IA32_MISC_ENABLE_MWAIT_BIT			18
-#define MSR_IA32_MISC_ENABLE_MWAIT			(1ULL << MSR_IA32_MISC_ENABLE_MWAIT_BIT)
-#define MSR_IA32_MISC_ENABLE_LIMIT_CPUID_BIT		22
-#define MSR_IA32_MISC_ENABLE_LIMIT_CPUID		(1ULL << MSR_IA32_MISC_ENABLE_LIMIT_CPUID_BIT)
-#define MSR_IA32_MISC_ENABLE_XTPR_DISABLE_BIT		23
-#define MSR_IA32_MISC_ENABLE_XTPR_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_XTPR_DISABLE_BIT)
-#define MSR_IA32_MISC_ENABLE_XD_DISABLE_BIT		34
-#define MSR_IA32_MISC_ENABLE_XD_DISABLE			(1ULL << MSR_IA32_MISC_ENABLE_XD_DISABLE_BIT)
-
-/* MISC_ENABLE bits: model-specific, meaning may vary from core to core */
-#define MSR_IA32_MISC_ENABLE_X87_COMPAT_BIT		2
-#define MSR_IA32_MISC_ENABLE_X87_COMPAT			(1ULL << MSR_IA32_MISC_ENABLE_X87_COMPAT_BIT)
-#define MSR_IA32_MISC_ENABLE_TM1_BIT			3
-#define MSR_IA32_MISC_ENABLE_TM1			(1ULL << MSR_IA32_MISC_ENABLE_TM1_BIT)
-#define MSR_IA32_MISC_ENABLE_SPLIT_LOCK_DISABLE_BIT	4
-#define MSR_IA32_MISC_ENABLE_SPLIT_LOCK_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_SPLIT_LOCK_DISABLE_BIT)
-#define MSR_IA32_MISC_ENABLE_L3CACHE_DISABLE_BIT	6
-#define MSR_IA32_MISC_ENABLE_L3CACHE_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_L3CACHE_DISABLE_BIT)
-#define MSR_IA32_MISC_ENABLE_SUPPRESS_LOCK_BIT		8
-#define MSR_IA32_MISC_ENABLE_SUPPRESS_LOCK		(1ULL << MSR_IA32_MISC_ENABLE_SUPPRESS_LOCK_BIT)
-#define MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE_BIT	9
-#define MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE_BIT)
-#define MSR_IA32_MISC_ENABLE_FERR_BIT			10
-#define MSR_IA32_MISC_ENABLE_FERR			(1ULL << MSR_IA32_MISC_ENABLE_FERR_BIT)
-#define MSR_IA32_MISC_ENABLE_FERR_MULTIPLEX_BIT		10
-#define MSR_IA32_MISC_ENABLE_FERR_MULTIPLEX		(1ULL << MSR_IA32_MISC_ENABLE_FERR_MULTIPLEX_BIT)
-#define MSR_IA32_MISC_ENABLE_TM2_BIT			13
-#define MSR_IA32_MISC_ENABLE_TM2			(1ULL << MSR_IA32_MISC_ENABLE_TM2_BIT)
-#define MSR_IA32_MISC_ENABLE_ADJ_PREF_DISABLE_BIT	19
-#define MSR_IA32_MISC_ENABLE_ADJ_PREF_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_ADJ_PREF_DISABLE_BIT)
-#define MSR_IA32_MISC_ENABLE_SPEEDSTEP_LOCK_BIT		20
-#define MSR_IA32_MISC_ENABLE_SPEEDSTEP_LOCK		(1ULL << MSR_IA32_MISC_ENABLE_SPEEDSTEP_LOCK_BIT)
-#define MSR_IA32_MISC_ENABLE_L1D_CONTEXT_BIT		24
-#define MSR_IA32_MISC_ENABLE_L1D_CONTEXT		(1ULL << MSR_IA32_MISC_ENABLE_L1D_CONTEXT_BIT)
-#define MSR_IA32_MISC_ENABLE_DCU_PREF_DISABLE_BIT	37
-#define MSR_IA32_MISC_ENABLE_DCU_PREF_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_DCU_PREF_DISABLE_BIT)
-#define MSR_IA32_MISC_ENABLE_TURBO_DISABLE_BIT		38
-#define MSR_IA32_MISC_ENABLE_TURBO_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_TURBO_DISABLE_BIT)
-#define MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE_BIT	39
-#define MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE_BIT)
-
-#define MSR_IA32_TSC_DEADLINE		0x000006E0
-
-/* P4/Xeon+ specific */
-#define MSR_IA32_MCG_EAX		0x00000180
-#define MSR_IA32_MCG_EBX		0x00000181
-#define MSR_IA32_MCG_ECX		0x00000182
-#define MSR_IA32_MCG_EDX		0x00000183
-#define MSR_IA32_MCG_ESI		0x00000184
-#define MSR_IA32_MCG_EDI		0x00000185
-#define MSR_IA32_MCG_EBP		0x00000186
-#define MSR_IA32_MCG_ESP		0x00000187
-#define MSR_IA32_MCG_EFLAGS		0x00000188
-#define MSR_IA32_MCG_EIP		0x00000189
-#define MSR_IA32_MCG_RESERVED		0x0000018a
-
-/* Pentium IV performance counter MSRs */
-#define MSR_P4_BPU_PERFCTR0		0x00000300
-#define MSR_P4_BPU_PERFCTR1		0x00000301
-#define MSR_P4_BPU_PERFCTR2		0x00000302
-#define MSR_P4_BPU_PERFCTR3		0x00000303
-#define MSR_P4_MS_PERFCTR0		0x00000304
-#define MSR_P4_MS_PERFCTR1		0x00000305
-#define MSR_P4_MS_PERFCTR2		0x00000306
-#define MSR_P4_MS_PERFCTR3		0x00000307
-#define MSR_P4_FLAME_PERFCTR0		0x00000308
-#define MSR_P4_FLAME_PERFCTR1		0x00000309
-#define MSR_P4_FLAME_PERFCTR2		0x0000030a
-#define MSR_P4_FLAME_PERFCTR3		0x0000030b
-#define MSR_P4_IQ_PERFCTR0		0x0000030c
-#define MSR_P4_IQ_PERFCTR1		0x0000030d
-#define MSR_P4_IQ_PERFCTR2		0x0000030e
-#define MSR_P4_IQ_PERFCTR3		0x0000030f
-#define MSR_P4_IQ_PERFCTR4		0x00000310
-#define MSR_P4_IQ_PERFCTR5		0x00000311
-#define MSR_P4_BPU_CCCR0		0x00000360
-#define MSR_P4_BPU_CCCR1		0x00000361
-#define MSR_P4_BPU_CCCR2		0x00000362
-#define MSR_P4_BPU_CCCR3		0x00000363
-#define MSR_P4_MS_CCCR0			0x00000364
-#define MSR_P4_MS_CCCR1			0x00000365
-#define MSR_P4_MS_CCCR2			0x00000366
-#define MSR_P4_MS_CCCR3			0x00000367
-#define MSR_P4_FLAME_CCCR0		0x00000368
-#define MSR_P4_FLAME_CCCR1		0x00000369
-#define MSR_P4_FLAME_CCCR2		0x0000036a
-#define MSR_P4_FLAME_CCCR3		0x0000036b
-#define MSR_P4_IQ_CCCR0			0x0000036c
-#define MSR_P4_IQ_CCCR1			0x0000036d
-#define MSR_P4_IQ_CCCR2			0x0000036e
-#define MSR_P4_IQ_CCCR3			0x0000036f
-#define MSR_P4_IQ_CCCR4			0x00000370
-#define MSR_P4_IQ_CCCR5			0x00000371
-#define MSR_P4_ALF_ESCR0		0x000003ca
-#define MSR_P4_ALF_ESCR1		0x000003cb
-#define MSR_P4_BPU_ESCR0		0x000003b2
-#define MSR_P4_BPU_ESCR1		0x000003b3
-#define MSR_P4_BSU_ESCR0		0x000003a0
-#define MSR_P4_BSU_ESCR1		0x000003a1
-#define MSR_P4_CRU_ESCR0		0x000003b8
-#define MSR_P4_CRU_ESCR1		0x000003b9
-#define MSR_P4_CRU_ESCR2		0x000003cc
-#define MSR_P4_CRU_ESCR3		0x000003cd
-#define MSR_P4_CRU_ESCR4		0x000003e0
-#define MSR_P4_CRU_ESCR5		0x000003e1
-#define MSR_P4_DAC_ESCR0		0x000003a8
-#define MSR_P4_DAC_ESCR1		0x000003a9
-#define MSR_P4_FIRM_ESCR0		0x000003a4
-#define MSR_P4_FIRM_ESCR1		0x000003a5
-#define MSR_P4_FLAME_ESCR0		0x000003a6
-#define MSR_P4_FLAME_ESCR1		0x000003a7
-#define MSR_P4_FSB_ESCR0		0x000003a2
-#define MSR_P4_FSB_ESCR1		0x000003a3
-#define MSR_P4_IQ_ESCR0			0x000003ba
-#define MSR_P4_IQ_ESCR1			0x000003bb
-#define MSR_P4_IS_ESCR0			0x000003b4
-#define MSR_P4_IS_ESCR1			0x000003b5
-#define MSR_P4_ITLB_ESCR0		0x000003b6
-#define MSR_P4_ITLB_ESCR1		0x000003b7
-#define MSR_P4_IX_ESCR0			0x000003c8
-#define MSR_P4_IX_ESCR1			0x000003c9
-#define MSR_P4_MOB_ESCR0		0x000003aa
-#define MSR_P4_MOB_ESCR1		0x000003ab
-#define MSR_P4_MS_ESCR0			0x000003c0
-#define MSR_P4_MS_ESCR1			0x000003c1
-#define MSR_P4_PMH_ESCR0		0x000003ac
-#define MSR_P4_PMH_ESCR1		0x000003ad
-#define MSR_P4_RAT_ESCR0		0x000003bc
-#define MSR_P4_RAT_ESCR1		0x000003bd
-#define MSR_P4_SAAT_ESCR0		0x000003ae
-#define MSR_P4_SAAT_ESCR1		0x000003af
-#define MSR_P4_SSU_ESCR0		0x000003be
-#define MSR_P4_SSU_ESCR1		0x000003bf /* guess: not in manual */
-
-#define MSR_P4_TBPU_ESCR0		0x000003c2
-#define MSR_P4_TBPU_ESCR1		0x000003c3
-#define MSR_P4_TC_ESCR0			0x000003c4
-#define MSR_P4_TC_ESCR1			0x000003c5
-#define MSR_P4_U2L_ESCR0		0x000003b0
-#define MSR_P4_U2L_ESCR1		0x000003b1
-
-#define MSR_P4_PEBS_MATRIX_VERT		0x000003f2
-
-/* Intel Core-based CPU performance counters */
-#define MSR_CORE_PERF_FIXED_CTR0	0x00000309
-#define MSR_CORE_PERF_FIXED_CTR1	0x0000030a
-#define MSR_CORE_PERF_FIXED_CTR2	0x0000030b
-#define MSR_CORE_PERF_FIXED_CTR_CTRL	0x0000038d
-#define MSR_CORE_PERF_GLOBAL_STATUS	0x0000038e
-#define MSR_CORE_PERF_GLOBAL_CTRL	0x0000038f
-#define MSR_CORE_PERF_GLOBAL_OVF_CTRL	0x00000390
-
-/* Geode defined MSRs */
-#define MSR_GEODE_BUSCONT_CONF0		0x00001900
-
-/* Intel VT MSRs */
-#define MSR_IA32_VMX_BASIC              0x00000480
-#define MSR_IA32_VMX_PINBASED_CTLS      0x00000481
-#define MSR_IA32_VMX_PROCBASED_CTLS     0x00000482
-#define MSR_IA32_VMX_EXIT_CTLS          0x00000483
-#define MSR_IA32_VMX_ENTRY_CTLS         0x00000484
-#define MSR_IA32_VMX_MISC               0x00000485
-#define MSR_IA32_VMX_CR0_FIXED0         0x00000486
-#define MSR_IA32_VMX_CR0_FIXED1         0x00000487
-#define MSR_IA32_VMX_CR4_FIXED0         0x00000488
-#define MSR_IA32_VMX_CR4_FIXED1         0x00000489
-#define MSR_IA32_VMX_VMCS_ENUM          0x0000048a
-#define MSR_IA32_VMX_PROCBASED_CTLS2    0x0000048b
-#define MSR_IA32_VMX_EPT_VPID_CAP       0x0000048c
-#define MSR_IA32_VMX_TRUE_PINBASED_CTLS  0x0000048d
-#define MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x0000048e
-#define MSR_IA32_VMX_TRUE_EXIT_CTLS      0x0000048f
-#define MSR_IA32_VMX_TRUE_ENTRY_CTLS     0x00000490
-#define MSR_IA32_VMX_VMFUNC             0x00000491
-
-/* VMX_BASIC bits and bitmasks */
-#define VMX_BASIC_VMCS_SIZE_SHIFT	32
-#define VMX_BASIC_TRUE_CTLS		(1ULL << 55)
-#define VMX_BASIC_64		0x0001000000000000LLU
-#define VMX_BASIC_MEM_TYPE_SHIFT	50
-#define VMX_BASIC_MEM_TYPE_MASK	0x003c000000000000LLU
-#define VMX_BASIC_MEM_TYPE_WB	6LLU
-#define VMX_BASIC_INOUT		0x0040000000000000LLU
-
-/* MSR_IA32_VMX_MISC bits */
-#define MSR_IA32_VMX_MISC_VMWRITE_SHADOW_RO_FIELDS (1ULL << 29)
-#define MSR_IA32_VMX_MISC_PREEMPTION_TIMER_SCALE   0x1F
-/* AMD-V MSRs */
-
-#define MSR_VM_CR                       0xc0010114
-#define MSR_VM_IGNNE                    0xc0010115
-#define MSR_VM_HSAVE_PA                 0xc0010117
+#include <uapi/asm/msr-index.h>
 
 #endif /* _ASM_X86_MSR_INDEX_H */
diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h
new file mode 100644
index 000000000000..d097e832ee3c
--- /dev/null
+++ b/arch/x86/include/uapi/asm/msr-index.h
@@ -0,0 +1,698 @@
+#ifndef _UAPI_ASM_X86_MSR_INDEX_H
+#define _UAPI_ASM_X86_MSR_INDEX_H
+
+/*
+ * CPU model specific register (MSR) numbers.
+ *
+ * Do not add new entries to this file unless the definitions are shared
+ * between multiple compilation units.
+ */
+
+/* x86-64 specific MSRs */
+#define MSR_EFER		0xc0000080 /* extended feature register */
+#define MSR_STAR		0xc0000081 /* legacy mode SYSCALL target */
+#define MSR_LSTAR		0xc0000082 /* long mode SYSCALL target */
+#define MSR_CSTAR		0xc0000083 /* compat mode SYSCALL target */
+#define MSR_SYSCALL_MASK	0xc0000084 /* EFLAGS mask for syscall */
+#define MSR_FS_BASE		0xc0000100 /* 64bit FS base */
+#define MSR_GS_BASE		0xc0000101 /* 64bit GS base */
+#define MSR_KERNEL_GS_BASE	0xc0000102 /* SwapGS GS shadow */
+#define MSR_TSC_AUX		0xc0000103 /* Auxiliary TSC */
+
+/* EFER bits: */
+#define _EFER_SCE		0  /* SYSCALL/SYSRET */
+#define _EFER_LME		8  /* Long mode enable */
+#define _EFER_LMA		10 /* Long mode active (read-only) */
+#define _EFER_NX		11 /* No execute enable */
+#define _EFER_SVME		12 /* Enable virtualization */
+#define _EFER_LMSLE		13 /* Long Mode Segment Limit Enable */
+#define _EFER_FFXSR		14 /* Enable Fast FXSAVE/FXRSTOR */
+
+#define EFER_SCE		(1<<_EFER_SCE)
+#define EFER_LME		(1<<_EFER_LME)
+#define EFER_LMA		(1<<_EFER_LMA)
+#define EFER_NX			(1<<_EFER_NX)
+#define EFER_SVME		(1<<_EFER_SVME)
+#define EFER_LMSLE		(1<<_EFER_LMSLE)
+#define EFER_FFXSR		(1<<_EFER_FFXSR)
+
+/* Intel MSRs. Some also available on other CPUs */
+
+#define MSR_PPIN_CTL			0x0000004e
+#define MSR_PPIN			0x0000004f
+
+#define MSR_IA32_PERFCTR0		0x000000c1
+#define MSR_IA32_PERFCTR1		0x000000c2
+#define MSR_FSB_FREQ			0x000000cd
+#define MSR_PLATFORM_INFO		0x000000ce
+
+#define MSR_NHM_SNB_PKG_CST_CFG_CTL	0x000000e2
+#define NHM_C3_AUTO_DEMOTE		(1UL << 25)
+#define NHM_C1_AUTO_DEMOTE		(1UL << 26)
+#define ATM_LNC_C6_AUTO_DEMOTE		(1UL << 25)
+#define SNB_C1_AUTO_UNDEMOTE		(1UL << 27)
+#define SNB_C3_AUTO_UNDEMOTE		(1UL << 28)
+
+#define MSR_MTRRcap			0x000000fe
+#define MSR_IA32_BBL_CR_CTL		0x00000119
+#define MSR_IA32_BBL_CR_CTL3		0x0000011e
+
+#define MSR_IA32_SYSENTER_CS		0x00000174
+#define MSR_IA32_SYSENTER_ESP		0x00000175
+#define MSR_IA32_SYSENTER_EIP		0x00000176
+
+#define MSR_IA32_MCG_CAP		0x00000179
+#define MSR_IA32_MCG_STATUS		0x0000017a
+#define MSR_IA32_MCG_CTL		0x0000017b
+#define MSR_IA32_MCG_EXT_CTL		0x000004d0
+
+#define MSR_OFFCORE_RSP_0		0x000001a6
+#define MSR_OFFCORE_RSP_1		0x000001a7
+#define MSR_TURBO_RATIO_LIMIT		0x000001ad
+#define MSR_TURBO_RATIO_LIMIT1		0x000001ae
+#define MSR_TURBO_RATIO_LIMIT2		0x000001af
+
+#define MSR_LBR_SELECT			0x000001c8
+#define MSR_LBR_TOS			0x000001c9
+#define MSR_LBR_NHM_FROM		0x00000680
+#define MSR_LBR_NHM_TO			0x000006c0
+#define MSR_LBR_CORE_FROM		0x00000040
+#define MSR_LBR_CORE_TO			0x00000060
+
+#define MSR_LBR_INFO_0			0x00000dc0 /* ... 0xddf for _31 */
+#define LBR_INFO_MISPRED		BIT_ULL(63)
+#define LBR_INFO_IN_TX			BIT_ULL(62)
+#define LBR_INFO_ABORT			BIT_ULL(61)
+#define LBR_INFO_CYCLES			0xffff
+
+#define MSR_IA32_PEBS_ENABLE		0x000003f1
+#define MSR_IA32_DS_AREA		0x00000600
+#define MSR_IA32_PERF_CAPABILITIES	0x00000345
+#define MSR_PEBS_LD_LAT_THRESHOLD	0x000003f6
+
+#define MSR_IA32_RTIT_CTL		0x00000570
+#define MSR_IA32_RTIT_STATUS		0x00000571
+#define MSR_IA32_RTIT_ADDR0_A		0x00000580
+#define MSR_IA32_RTIT_ADDR0_B		0x00000581
+#define MSR_IA32_RTIT_ADDR1_A		0x00000582
+#define MSR_IA32_RTIT_ADDR1_B		0x00000583
+#define MSR_IA32_RTIT_ADDR2_A		0x00000584
+#define MSR_IA32_RTIT_ADDR2_B		0x00000585
+#define MSR_IA32_RTIT_ADDR3_A		0x00000586
+#define MSR_IA32_RTIT_ADDR3_B		0x00000587
+#define MSR_IA32_RTIT_CR3_MATCH		0x00000572
+#define MSR_IA32_RTIT_OUTPUT_BASE	0x00000560
+#define MSR_IA32_RTIT_OUTPUT_MASK	0x00000561
+
+#define MSR_MTRRfix64K_00000		0x00000250
+#define MSR_MTRRfix16K_80000		0x00000258
+#define MSR_MTRRfix16K_A0000		0x00000259
+#define MSR_MTRRfix4K_C0000		0x00000268
+#define MSR_MTRRfix4K_C8000		0x00000269
+#define MSR_MTRRfix4K_D0000		0x0000026a
+#define MSR_MTRRfix4K_D8000		0x0000026b
+#define MSR_MTRRfix4K_E0000		0x0000026c
+#define MSR_MTRRfix4K_E8000		0x0000026d
+#define MSR_MTRRfix4K_F0000		0x0000026e
+#define MSR_MTRRfix4K_F8000		0x0000026f
+#define MSR_MTRRdefType			0x000002ff
+
+#define MSR_IA32_CR_PAT			0x00000277
+
+#define MSR_IA32_DEBUGCTLMSR		0x000001d9
+#define MSR_IA32_LASTBRANCHFROMIP	0x000001db
+#define MSR_IA32_LASTBRANCHTOIP		0x000001dc
+#define MSR_IA32_LASTINTFROMIP		0x000001dd
+#define MSR_IA32_LASTINTTOIP		0x000001de
+
+/* DEBUGCTLMSR bits (others vary by model): */
+#define DEBUGCTLMSR_LBR			(1UL <<  0) /* last branch recording */
+#define DEBUGCTLMSR_BTF			(1UL <<  1) /* single-step on branches */
+#define DEBUGCTLMSR_TR			(1UL <<  6)
+#define DEBUGCTLMSR_BTS			(1UL <<  7)
+#define DEBUGCTLMSR_BTINT		(1UL <<  8)
+#define DEBUGCTLMSR_BTS_OFF_OS		(1UL <<  9)
+#define DEBUGCTLMSR_BTS_OFF_USR		(1UL << 10)
+#define DEBUGCTLMSR_FREEZE_LBRS_ON_PMI	(1UL << 11)
+
+#define MSR_PEBS_FRONTEND		0x000003f7
+
+#define MSR_IA32_POWER_CTL		0x000001fc
+
+#define MSR_IA32_MC0_CTL		0x00000400
+#define MSR_IA32_MC0_STATUS		0x00000401
+#define MSR_IA32_MC0_ADDR		0x00000402
+#define MSR_IA32_MC0_MISC		0x00000403
+
+/* C-state Residency Counters */
+#define MSR_PKG_C3_RESIDENCY		0x000003f8
+#define MSR_PKG_C6_RESIDENCY		0x000003f9
+#define MSR_PKG_C7_RESIDENCY		0x000003fa
+#define MSR_CORE_C3_RESIDENCY		0x000003fc
+#define MSR_CORE_C6_RESIDENCY		0x000003fd
+#define MSR_CORE_C7_RESIDENCY		0x000003fe
+#define MSR_KNL_CORE_C6_RESIDENCY	0x000003ff
+#define MSR_PKG_C2_RESIDENCY		0x0000060d
+#define MSR_PKG_C8_RESIDENCY		0x00000630
+#define MSR_PKG_C9_RESIDENCY		0x00000631
+#define MSR_PKG_C10_RESIDENCY		0x00000632
+
+/* Interrupt Response Limit */
+#define MSR_PKGC3_IRTL			0x0000060a
+#define MSR_PKGC6_IRTL			0x0000060b
+#define MSR_PKGC7_IRTL			0x0000060c
+#define MSR_PKGC8_IRTL			0x00000633
+#define MSR_PKGC9_IRTL			0x00000634
+#define MSR_PKGC10_IRTL			0x00000635
+
+/* Run Time Average Power Limiting (RAPL) Interface */
+
+#define MSR_RAPL_POWER_UNIT		0x00000606
+
+#define MSR_PKG_POWER_LIMIT		0x00000610
+#define MSR_PKG_ENERGY_STATUS		0x00000611
+#define MSR_PKG_PERF_STATUS		0x00000613
+#define MSR_PKG_POWER_INFO		0x00000614
+
+#define MSR_DRAM_POWER_LIMIT		0x00000618
+#define MSR_DRAM_ENERGY_STATUS		0x00000619
+#define MSR_DRAM_PERF_STATUS		0x0000061b
+#define MSR_DRAM_POWER_INFO		0x0000061c
+
+#define MSR_PP0_POWER_LIMIT		0x00000638
+#define MSR_PP0_ENERGY_STATUS		0x00000639
+#define MSR_PP0_POLICY			0x0000063a
+#define MSR_PP0_PERF_STATUS		0x0000063b
+
+#define MSR_PP1_POWER_LIMIT		0x00000640
+#define MSR_PP1_ENERGY_STATUS		0x00000641
+#define MSR_PP1_POLICY			0x00000642
+
+/* Config TDP MSRs */
+#define MSR_CONFIG_TDP_NOMINAL		0x00000648
+#define MSR_CONFIG_TDP_LEVEL_1		0x00000649
+#define MSR_CONFIG_TDP_LEVEL_2		0x0000064A
+#define MSR_CONFIG_TDP_CONTROL		0x0000064B
+#define MSR_TURBO_ACTIVATION_RATIO	0x0000064C
+
+#define MSR_PLATFORM_ENERGY_STATUS	0x0000064D
+
+#define MSR_PKG_WEIGHTED_CORE_C0_RES	0x00000658
+#define MSR_PKG_ANY_CORE_C0_RES		0x00000659
+#define MSR_PKG_ANY_GFXE_C0_RES		0x0000065A
+#define MSR_PKG_BOTH_CORE_GFXE_C0_RES	0x0000065B
+
+#define MSR_CORE_C1_RES			0x00000660
+
+#define MSR_CC6_DEMOTION_POLICY_CONFIG	0x00000668
+#define MSR_MC6_DEMOTION_POLICY_CONFIG	0x00000669
+
+#define MSR_CORE_PERF_LIMIT_REASONS	0x00000690
+#define MSR_GFX_PERF_LIMIT_REASONS	0x000006B0
+#define MSR_RING_PERF_LIMIT_REASONS	0x000006B1
+
+/* Hardware P state interface */
+#define MSR_PPERF			0x0000064e
+#define MSR_PERF_LIMIT_REASONS		0x0000064f
+#define MSR_PM_ENABLE			0x00000770
+#define MSR_HWP_CAPABILITIES		0x00000771
+#define MSR_HWP_REQUEST_PKG		0x00000772
+#define MSR_HWP_INTERRUPT		0x00000773
+#define MSR_HWP_REQUEST 		0x00000774
+#define MSR_HWP_STATUS			0x00000777
+
+/* CPUID.6.EAX */
+#define HWP_BASE_BIT			(1<<7)
+#define HWP_NOTIFICATIONS_BIT		(1<<8)
+#define HWP_ACTIVITY_WINDOW_BIT		(1<<9)
+#define HWP_ENERGY_PERF_PREFERENCE_BIT	(1<<10)
+#define HWP_PACKAGE_LEVEL_REQUEST_BIT	(1<<11)
+
+/* IA32_HWP_CAPABILITIES */
+#define HWP_HIGHEST_PERF(x)		(((x) >> 0) & 0xff)
+#define HWP_GUARANTEED_PERF(x)		(((x) >> 8) & 0xff)
+#define HWP_MOSTEFFICIENT_PERF(x)	(((x) >> 16) & 0xff)
+#define HWP_LOWEST_PERF(x)		(((x) >> 24) & 0xff)
+
+/* IA32_HWP_REQUEST */
+#define HWP_MIN_PERF(x) 		(x & 0xff)
+#define HWP_MAX_PERF(x) 		((x & 0xff) << 8)
+#define HWP_DESIRED_PERF(x)		((x & 0xff) << 16)
+#define HWP_ENERGY_PERF_PREFERENCE(x)	((x & 0xff) << 24)
+#define HWP_ACTIVITY_WINDOW(x)		((x & 0xff3) << 32)
+#define HWP_PACKAGE_CONTROL(x)		((x & 0x1) << 42)
+
+/* IA32_HWP_STATUS */
+#define HWP_GUARANTEED_CHANGE(x)	(x & 0x1)
+#define HWP_EXCURSION_TO_MINIMUM(x)	(x & 0x4)
+
+/* IA32_HWP_INTERRUPT */
+#define HWP_CHANGE_TO_GUARANTEED_INT(x)	(x & 0x1)
+#define HWP_EXCURSION_TO_MINIMUM_INT(x)	(x & 0x2)
+
+#define MSR_AMD64_MC0_MASK		0xc0010044
+
+#define MSR_IA32_MCx_CTL(x)		(MSR_IA32_MC0_CTL + 4*(x))
+#define MSR_IA32_MCx_STATUS(x)		(MSR_IA32_MC0_STATUS + 4*(x))
+#define MSR_IA32_MCx_ADDR(x)		(MSR_IA32_MC0_ADDR + 4*(x))
+#define MSR_IA32_MCx_MISC(x)		(MSR_IA32_MC0_MISC + 4*(x))
+
+#define MSR_AMD64_MCx_MASK(x)		(MSR_AMD64_MC0_MASK + (x))
+
+/* These are consecutive and not in the normal 4er MCE bank block */
+#define MSR_IA32_MC0_CTL2		0x00000280
+#define MSR_IA32_MCx_CTL2(x)		(MSR_IA32_MC0_CTL2 + (x))
+
+#define MSR_P6_PERFCTR0			0x000000c1
+#define MSR_P6_PERFCTR1			0x000000c2
+#define MSR_P6_EVNTSEL0			0x00000186
+#define MSR_P6_EVNTSEL1			0x00000187
+
+#define MSR_KNC_PERFCTR0               0x00000020
+#define MSR_KNC_PERFCTR1               0x00000021
+#define MSR_KNC_EVNTSEL0               0x00000028
+#define MSR_KNC_EVNTSEL1               0x00000029
+
+/* Alternative perfctr range with full access. */
+#define MSR_IA32_PMC0			0x000004c1
+
+/* AMD64 MSRs. Not complete. See the architecture manual for a more
+   complete list. */
+
+#define MSR_AMD64_PATCH_LEVEL		0x0000008b
+#define MSR_AMD64_TSC_RATIO		0xc0000104
+#define MSR_AMD64_NB_CFG		0xc001001f
+#define MSR_AMD64_PATCH_LOADER		0xc0010020
+#define MSR_AMD64_OSVW_ID_LENGTH	0xc0010140
+#define MSR_AMD64_OSVW_STATUS		0xc0010141
+#define MSR_AMD64_LS_CFG		0xc0011020
+#define MSR_AMD64_DC_CFG		0xc0011022
+#define MSR_AMD64_BU_CFG2		0xc001102a
+#define MSR_AMD64_IBSFETCHCTL		0xc0011030
+#define MSR_AMD64_IBSFETCHLINAD		0xc0011031
+#define MSR_AMD64_IBSFETCHPHYSAD	0xc0011032
+#define MSR_AMD64_IBSFETCH_REG_COUNT	3
+#define MSR_AMD64_IBSFETCH_REG_MASK	((1UL<<MSR_AMD64_IBSFETCH_REG_COUNT)-1)
+#define MSR_AMD64_IBSOPCTL		0xc0011033
+#define MSR_AMD64_IBSOPRIP		0xc0011034
+#define MSR_AMD64_IBSOPDATA		0xc0011035
+#define MSR_AMD64_IBSOPDATA2		0xc0011036
+#define MSR_AMD64_IBSOPDATA3		0xc0011037
+#define MSR_AMD64_IBSDCLINAD		0xc0011038
+#define MSR_AMD64_IBSDCPHYSAD		0xc0011039
+#define MSR_AMD64_IBSOP_REG_COUNT	7
+#define MSR_AMD64_IBSOP_REG_MASK	((1UL<<MSR_AMD64_IBSOP_REG_COUNT)-1)
+#define MSR_AMD64_IBSCTL		0xc001103a
+#define MSR_AMD64_IBSBRTARGET		0xc001103b
+#define MSR_AMD64_IBSOPDATA4		0xc001103d
+#define MSR_AMD64_IBS_REG_COUNT_MAX	8 /* includes MSR_AMD64_IBSBRTARGET */
+
+/* Fam 17h MSRs */
+#define MSR_F17H_IRPERF			0xc00000e9
+
+/* Fam 16h MSRs */
+#define MSR_F16H_L2I_PERF_CTL		0xc0010230
+#define MSR_F16H_L2I_PERF_CTR		0xc0010231
+#define MSR_F16H_DR1_ADDR_MASK		0xc0011019
+#define MSR_F16H_DR2_ADDR_MASK		0xc001101a
+#define MSR_F16H_DR3_ADDR_MASK		0xc001101b
+#define MSR_F16H_DR0_ADDR_MASK		0xc0011027
+
+/* Fam 15h MSRs */
+#define MSR_F15H_PERF_CTL		0xc0010200
+#define MSR_F15H_PERF_CTR		0xc0010201
+#define MSR_F15H_NB_PERF_CTL		0xc0010240
+#define MSR_F15H_NB_PERF_CTR		0xc0010241
+#define MSR_F15H_PTSC			0xc0010280
+#define MSR_F15H_IC_CFG			0xc0011021
+
+/* Fam 10h MSRs */
+#define MSR_FAM10H_MMIO_CONF_BASE	0xc0010058
+#define FAM10H_MMIO_CONF_ENABLE		(1<<0)
+#define FAM10H_MMIO_CONF_BUSRANGE_MASK	0xf
+#define FAM10H_MMIO_CONF_BUSRANGE_SHIFT 2
+#define FAM10H_MMIO_CONF_BASE_MASK	0xfffffffULL
+#define FAM10H_MMIO_CONF_BASE_SHIFT	20
+#define MSR_FAM10H_NODE_ID		0xc001100c
+
+/* K8 MSRs */
+#define MSR_K8_TOP_MEM1			0xc001001a
+#define MSR_K8_TOP_MEM2			0xc001001d
+#define MSR_K8_SYSCFG			0xc0010010
+#define MSR_K8_INT_PENDING_MSG		0xc0010055
+/* C1E active bits in int pending message */
+#define K8_INTP_C1E_ACTIVE_MASK		0x18000000
+#define MSR_K8_TSEG_ADDR		0xc0010112
+#define MSR_K8_TSEG_MASK		0xc0010113
+#define K8_MTRRFIXRANGE_DRAM_ENABLE	0x00040000 /* MtrrFixDramEn bit    */
+#define K8_MTRRFIXRANGE_DRAM_MODIFY	0x00080000 /* MtrrFixDramModEn bit */
+#define K8_MTRR_RDMEM_WRMEM_MASK	0x18181818 /* Mask: RdMem|WrMem    */
+
+/* K7 MSRs */
+#define MSR_K7_EVNTSEL0			0xc0010000
+#define MSR_K7_PERFCTR0			0xc0010004
+#define MSR_K7_EVNTSEL1			0xc0010001
+#define MSR_K7_PERFCTR1			0xc0010005
+#define MSR_K7_EVNTSEL2			0xc0010002
+#define MSR_K7_PERFCTR2			0xc0010006
+#define MSR_K7_EVNTSEL3			0xc0010003
+#define MSR_K7_PERFCTR3			0xc0010007
+#define MSR_K7_CLK_CTL			0xc001001b
+#define MSR_K7_HWCR			0xc0010015
+#define MSR_K7_FID_VID_CTL		0xc0010041
+#define MSR_K7_FID_VID_STATUS		0xc0010042
+
+/* K6 MSRs */
+#define MSR_K6_WHCR			0xc0000082
+#define MSR_K6_UWCCR			0xc0000085
+#define MSR_K6_EPMR			0xc0000086
+#define MSR_K6_PSOR			0xc0000087
+#define MSR_K6_PFIR			0xc0000088
+
+/* Centaur-Hauls/IDT defined MSRs. */
+#define MSR_IDT_FCR1			0x00000107
+#define MSR_IDT_FCR2			0x00000108
+#define MSR_IDT_FCR3			0x00000109
+#define MSR_IDT_FCR4			0x0000010a
+
+#define MSR_IDT_MCR0			0x00000110
+#define MSR_IDT_MCR1			0x00000111
+#define MSR_IDT_MCR2			0x00000112
+#define MSR_IDT_MCR3			0x00000113
+#define MSR_IDT_MCR4			0x00000114
+#define MSR_IDT_MCR5			0x00000115
+#define MSR_IDT_MCR6			0x00000116
+#define MSR_IDT_MCR7			0x00000117
+#define MSR_IDT_MCR_CTRL		0x00000120
+
+/* VIA Cyrix defined MSRs*/
+#define MSR_VIA_FCR			0x00001107
+#define MSR_VIA_LONGHAUL		0x0000110a
+#define MSR_VIA_RNG			0x0000110b
+#define MSR_VIA_BCR2			0x00001147
+
+/* Transmeta defined MSRs */
+#define MSR_TMTA_LONGRUN_CTRL		0x80868010
+#define MSR_TMTA_LONGRUN_FLAGS		0x80868011
+#define MSR_TMTA_LRTI_READOUT		0x80868018
+#define MSR_TMTA_LRTI_VOLT_MHZ		0x8086801a
+
+/* Intel defined MSRs. */
+#define MSR_IA32_P5_MC_ADDR		0x00000000
+#define MSR_IA32_P5_MC_TYPE		0x00000001
+#define MSR_IA32_TSC			0x00000010
+#define MSR_IA32_PLATFORM_ID		0x00000017
+#define MSR_IA32_EBL_CR_POWERON		0x0000002a
+#define MSR_EBC_FREQUENCY_ID		0x0000002c
+#define MSR_SMI_COUNT			0x00000034
+#define MSR_IA32_FEATURE_CONTROL        0x0000003a
+#define MSR_IA32_TSC_ADJUST             0x0000003b
+#define MSR_IA32_BNDCFGS		0x00000d90
+
+#define MSR_IA32_XSS			0x00000da0
+
+#define FEATURE_CONTROL_LOCKED				(1<<0)
+#define FEATURE_CONTROL_VMXON_ENABLED_INSIDE_SMX	(1<<1)
+#define FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX	(1<<2)
+#define FEATURE_CONTROL_LMCE				(1<<20)
+
+#define MSR_IA32_APICBASE		0x0000001b
+#define MSR_IA32_APICBASE_BSP		(1<<8)
+#define MSR_IA32_APICBASE_ENABLE	(1<<11)
+#define MSR_IA32_APICBASE_BASE		(0xfffff<<12)
+
+#define MSR_IA32_TSCDEADLINE		0x000006e0
+
+#define MSR_IA32_UCODE_WRITE		0x00000079
+#define MSR_IA32_UCODE_REV		0x0000008b
+
+#define MSR_IA32_SMM_MONITOR_CTL	0x0000009b
+#define MSR_IA32_SMBASE			0x0000009e
+
+#define MSR_IA32_PERF_STATUS		0x00000198
+#define MSR_IA32_PERF_CTL		0x00000199
+#define INTEL_PERF_CTL_MASK		0xffff
+#define MSR_AMD_PSTATE_DEF_BASE		0xc0010064
+#define MSR_AMD_PERF_STATUS		0xc0010063
+#define MSR_AMD_PERF_CTL		0xc0010062
+
+#define MSR_IA32_MPERF			0x000000e7
+#define MSR_IA32_APERF			0x000000e8
+
+#define MSR_IA32_THERM_CONTROL		0x0000019a
+#define MSR_IA32_THERM_INTERRUPT	0x0000019b
+
+#define THERM_INT_HIGH_ENABLE		(1 << 0)
+#define THERM_INT_LOW_ENABLE		(1 << 1)
+#define THERM_INT_PLN_ENABLE		(1 << 24)
+
+#define MSR_IA32_THERM_STATUS		0x0000019c
+
+#define THERM_STATUS_PROCHOT		(1 << 0)
+#define THERM_STATUS_POWER_LIMIT	(1 << 10)
+
+#define MSR_THERM2_CTL			0x0000019d
+
+#define MSR_THERM2_CTL_TM_SELECT	(1ULL << 16)
+
+#define MSR_IA32_MISC_ENABLE		0x000001a0
+
+#define MSR_IA32_TEMPERATURE_TARGET	0x000001a2
+
+#define MSR_MISC_PWR_MGMT		0x000001aa
+
+#define MSR_IA32_ENERGY_PERF_BIAS	0x000001b0
+#define ENERGY_PERF_BIAS_PERFORMANCE	0
+#define ENERGY_PERF_BIAS_NORMAL		6
+#define ENERGY_PERF_BIAS_POWERSAVE	15
+
+#define MSR_IA32_PACKAGE_THERM_STATUS		0x000001b1
+
+#define PACKAGE_THERM_STATUS_PROCHOT		(1 << 0)
+#define PACKAGE_THERM_STATUS_POWER_LIMIT	(1 << 10)
+
+#define MSR_IA32_PACKAGE_THERM_INTERRUPT	0x000001b2
+
+#define PACKAGE_THERM_INT_HIGH_ENABLE		(1 << 0)
+#define PACKAGE_THERM_INT_LOW_ENABLE		(1 << 1)
+#define PACKAGE_THERM_INT_PLN_ENABLE		(1 << 24)
+
+/* Thermal Thresholds Support */
+#define THERM_INT_THRESHOLD0_ENABLE    (1 << 15)
+#define THERM_SHIFT_THRESHOLD0        8
+#define THERM_MASK_THRESHOLD0          (0x7f << THERM_SHIFT_THRESHOLD0)
+#define THERM_INT_THRESHOLD1_ENABLE    (1 << 23)
+#define THERM_SHIFT_THRESHOLD1        16
+#define THERM_MASK_THRESHOLD1          (0x7f << THERM_SHIFT_THRESHOLD1)
+#define THERM_STATUS_THRESHOLD0        (1 << 6)
+#define THERM_LOG_THRESHOLD0           (1 << 7)
+#define THERM_STATUS_THRESHOLD1        (1 << 8)
+#define THERM_LOG_THRESHOLD1           (1 << 9)
+
+/* MISC_ENABLE bits: architectural */
+#define MSR_IA32_MISC_ENABLE_FAST_STRING_BIT		0
+#define MSR_IA32_MISC_ENABLE_FAST_STRING		(1ULL << MSR_IA32_MISC_ENABLE_FAST_STRING_BIT)
+#define MSR_IA32_MISC_ENABLE_TCC_BIT			1
+#define MSR_IA32_MISC_ENABLE_TCC			(1ULL << MSR_IA32_MISC_ENABLE_TCC_BIT)
+#define MSR_IA32_MISC_ENABLE_EMON_BIT			7
+#define MSR_IA32_MISC_ENABLE_EMON			(1ULL << MSR_IA32_MISC_ENABLE_EMON_BIT)
+#define MSR_IA32_MISC_ENABLE_BTS_UNAVAIL_BIT		11
+#define MSR_IA32_MISC_ENABLE_BTS_UNAVAIL		(1ULL << MSR_IA32_MISC_ENABLE_BTS_UNAVAIL_BIT)
+#define MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL_BIT		12
+#define MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL		(1ULL << MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL_BIT)
+#define MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP_BIT	16
+#define MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP		(1ULL << MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP_BIT)
+#define MSR_IA32_MISC_ENABLE_MWAIT_BIT			18
+#define MSR_IA32_MISC_ENABLE_MWAIT			(1ULL << MSR_IA32_MISC_ENABLE_MWAIT_BIT)
+#define MSR_IA32_MISC_ENABLE_LIMIT_CPUID_BIT		22
+#define MSR_IA32_MISC_ENABLE_LIMIT_CPUID		(1ULL << MSR_IA32_MISC_ENABLE_LIMIT_CPUID_BIT)
+#define MSR_IA32_MISC_ENABLE_XTPR_DISABLE_BIT		23
+#define MSR_IA32_MISC_ENABLE_XTPR_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_XTPR_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_XD_DISABLE_BIT		34
+#define MSR_IA32_MISC_ENABLE_XD_DISABLE			(1ULL << MSR_IA32_MISC_ENABLE_XD_DISABLE_BIT)
+
+/* MISC_ENABLE bits: model-specific, meaning may vary from core to core */
+#define MSR_IA32_MISC_ENABLE_X87_COMPAT_BIT		2
+#define MSR_IA32_MISC_ENABLE_X87_COMPAT			(1ULL << MSR_IA32_MISC_ENABLE_X87_COMPAT_BIT)
+#define MSR_IA32_MISC_ENABLE_TM1_BIT			3
+#define MSR_IA32_MISC_ENABLE_TM1			(1ULL << MSR_IA32_MISC_ENABLE_TM1_BIT)
+#define MSR_IA32_MISC_ENABLE_SPLIT_LOCK_DISABLE_BIT	4
+#define MSR_IA32_MISC_ENABLE_SPLIT_LOCK_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_SPLIT_LOCK_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_L3CACHE_DISABLE_BIT	6
+#define MSR_IA32_MISC_ENABLE_L3CACHE_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_L3CACHE_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_SUPPRESS_LOCK_BIT		8
+#define MSR_IA32_MISC_ENABLE_SUPPRESS_LOCK		(1ULL << MSR_IA32_MISC_ENABLE_SUPPRESS_LOCK_BIT)
+#define MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE_BIT	9
+#define MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_FERR_BIT			10
+#define MSR_IA32_MISC_ENABLE_FERR			(1ULL << MSR_IA32_MISC_ENABLE_FERR_BIT)
+#define MSR_IA32_MISC_ENABLE_FERR_MULTIPLEX_BIT		10
+#define MSR_IA32_MISC_ENABLE_FERR_MULTIPLEX		(1ULL << MSR_IA32_MISC_ENABLE_FERR_MULTIPLEX_BIT)
+#define MSR_IA32_MISC_ENABLE_TM2_BIT			13
+#define MSR_IA32_MISC_ENABLE_TM2			(1ULL << MSR_IA32_MISC_ENABLE_TM2_BIT)
+#define MSR_IA32_MISC_ENABLE_ADJ_PREF_DISABLE_BIT	19
+#define MSR_IA32_MISC_ENABLE_ADJ_PREF_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_ADJ_PREF_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_SPEEDSTEP_LOCK_BIT		20
+#define MSR_IA32_MISC_ENABLE_SPEEDSTEP_LOCK		(1ULL << MSR_IA32_MISC_ENABLE_SPEEDSTEP_LOCK_BIT)
+#define MSR_IA32_MISC_ENABLE_L1D_CONTEXT_BIT		24
+#define MSR_IA32_MISC_ENABLE_L1D_CONTEXT		(1ULL << MSR_IA32_MISC_ENABLE_L1D_CONTEXT_BIT)
+#define MSR_IA32_MISC_ENABLE_DCU_PREF_DISABLE_BIT	37
+#define MSR_IA32_MISC_ENABLE_DCU_PREF_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_DCU_PREF_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_TURBO_DISABLE_BIT		38
+#define MSR_IA32_MISC_ENABLE_TURBO_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_TURBO_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE_BIT	39
+#define MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE		(1ULL << MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE_BIT)
+
+#define MSR_IA32_TSC_DEADLINE		0x000006E0
+
+/* P4/Xeon+ specific */
+#define MSR_IA32_MCG_EAX		0x00000180
+#define MSR_IA32_MCG_EBX		0x00000181
+#define MSR_IA32_MCG_ECX		0x00000182
+#define MSR_IA32_MCG_EDX		0x00000183
+#define MSR_IA32_MCG_ESI		0x00000184
+#define MSR_IA32_MCG_EDI		0x00000185
+#define MSR_IA32_MCG_EBP		0x00000186
+#define MSR_IA32_MCG_ESP		0x00000187
+#define MSR_IA32_MCG_EFLAGS		0x00000188
+#define MSR_IA32_MCG_EIP		0x00000189
+#define MSR_IA32_MCG_RESERVED		0x0000018a
+
+/* Pentium IV performance counter MSRs */
+#define MSR_P4_BPU_PERFCTR0		0x00000300
+#define MSR_P4_BPU_PERFCTR1		0x00000301
+#define MSR_P4_BPU_PERFCTR2		0x00000302
+#define MSR_P4_BPU_PERFCTR3		0x00000303
+#define MSR_P4_MS_PERFCTR0		0x00000304
+#define MSR_P4_MS_PERFCTR1		0x00000305
+#define MSR_P4_MS_PERFCTR2		0x00000306
+#define MSR_P4_MS_PERFCTR3		0x00000307
+#define MSR_P4_FLAME_PERFCTR0		0x00000308
+#define MSR_P4_FLAME_PERFCTR1		0x00000309
+#define MSR_P4_FLAME_PERFCTR2		0x0000030a
+#define MSR_P4_FLAME_PERFCTR3		0x0000030b
+#define MSR_P4_IQ_PERFCTR0		0x0000030c
+#define MSR_P4_IQ_PERFCTR1		0x0000030d
+#define MSR_P4_IQ_PERFCTR2		0x0000030e
+#define MSR_P4_IQ_PERFCTR3		0x0000030f
+#define MSR_P4_IQ_PERFCTR4		0x00000310
+#define MSR_P4_IQ_PERFCTR5		0x00000311
+#define MSR_P4_BPU_CCCR0		0x00000360
+#define MSR_P4_BPU_CCCR1		0x00000361
+#define MSR_P4_BPU_CCCR2		0x00000362
+#define MSR_P4_BPU_CCCR3		0x00000363
+#define MSR_P4_MS_CCCR0			0x00000364
+#define MSR_P4_MS_CCCR1			0x00000365
+#define MSR_P4_MS_CCCR2			0x00000366
+#define MSR_P4_MS_CCCR3			0x00000367
+#define MSR_P4_FLAME_CCCR0		0x00000368
+#define MSR_P4_FLAME_CCCR1		0x00000369
+#define MSR_P4_FLAME_CCCR2		0x0000036a
+#define MSR_P4_FLAME_CCCR3		0x0000036b
+#define MSR_P4_IQ_CCCR0			0x0000036c
+#define MSR_P4_IQ_CCCR1			0x0000036d
+#define MSR_P4_IQ_CCCR2			0x0000036e
+#define MSR_P4_IQ_CCCR3			0x0000036f
+#define MSR_P4_IQ_CCCR4			0x00000370
+#define MSR_P4_IQ_CCCR5			0x00000371
+#define MSR_P4_ALF_ESCR0		0x000003ca
+#define MSR_P4_ALF_ESCR1		0x000003cb
+#define MSR_P4_BPU_ESCR0		0x000003b2
+#define MSR_P4_BPU_ESCR1		0x000003b3
+#define MSR_P4_BSU_ESCR0		0x000003a0
+#define MSR_P4_BSU_ESCR1		0x000003a1
+#define MSR_P4_CRU_ESCR0		0x000003b8
+#define MSR_P4_CRU_ESCR1		0x000003b9
+#define MSR_P4_CRU_ESCR2		0x000003cc
+#define MSR_P4_CRU_ESCR3		0x000003cd
+#define MSR_P4_CRU_ESCR4		0x000003e0
+#define MSR_P4_CRU_ESCR5		0x000003e1
+#define MSR_P4_DAC_ESCR0		0x000003a8
+#define MSR_P4_DAC_ESCR1		0x000003a9
+#define MSR_P4_FIRM_ESCR0		0x000003a4
+#define MSR_P4_FIRM_ESCR1		0x000003a5
+#define MSR_P4_FLAME_ESCR0		0x000003a6
+#define MSR_P4_FLAME_ESCR1		0x000003a7
+#define MSR_P4_FSB_ESCR0		0x000003a2
+#define MSR_P4_FSB_ESCR1		0x000003a3
+#define MSR_P4_IQ_ESCR0			0x000003ba
+#define MSR_P4_IQ_ESCR1			0x000003bb
+#define MSR_P4_IS_ESCR0			0x000003b4
+#define MSR_P4_IS_ESCR1			0x000003b5
+#define MSR_P4_ITLB_ESCR0		0x000003b6
+#define MSR_P4_ITLB_ESCR1		0x000003b7
+#define MSR_P4_IX_ESCR0			0x000003c8
+#define MSR_P4_IX_ESCR1			0x000003c9
+#define MSR_P4_MOB_ESCR0		0x000003aa
+#define MSR_P4_MOB_ESCR1		0x000003ab
+#define MSR_P4_MS_ESCR0			0x000003c0
+#define MSR_P4_MS_ESCR1			0x000003c1
+#define MSR_P4_PMH_ESCR0		0x000003ac
+#define MSR_P4_PMH_ESCR1		0x000003ad
+#define MSR_P4_RAT_ESCR0		0x000003bc
+#define MSR_P4_RAT_ESCR1		0x000003bd
+#define MSR_P4_SAAT_ESCR0		0x000003ae
+#define MSR_P4_SAAT_ESCR1		0x000003af
+#define MSR_P4_SSU_ESCR0		0x000003be
+#define MSR_P4_SSU_ESCR1		0x000003bf /* guess: not in manual */
+
+#define MSR_P4_TBPU_ESCR0		0x000003c2
+#define MSR_P4_TBPU_ESCR1		0x000003c3
+#define MSR_P4_TC_ESCR0			0x000003c4
+#define MSR_P4_TC_ESCR1			0x000003c5
+#define MSR_P4_U2L_ESCR0		0x000003b0
+#define MSR_P4_U2L_ESCR1		0x000003b1
+
+#define MSR_P4_PEBS_MATRIX_VERT		0x000003f2
+
+/* Intel Core-based CPU performance counters */
+#define MSR_CORE_PERF_FIXED_CTR0	0x00000309
+#define MSR_CORE_PERF_FIXED_CTR1	0x0000030a
+#define MSR_CORE_PERF_FIXED_CTR2	0x0000030b
+#define MSR_CORE_PERF_FIXED_CTR_CTRL	0x0000038d
+#define MSR_CORE_PERF_GLOBAL_STATUS	0x0000038e
+#define MSR_CORE_PERF_GLOBAL_CTRL	0x0000038f
+#define MSR_CORE_PERF_GLOBAL_OVF_CTRL	0x00000390
+
+/* Geode defined MSRs */
+#define MSR_GEODE_BUSCONT_CONF0		0x00001900
+
+/* Intel VT MSRs */
+#define MSR_IA32_VMX_BASIC              0x00000480
+#define MSR_IA32_VMX_PINBASED_CTLS      0x00000481
+#define MSR_IA32_VMX_PROCBASED_CTLS     0x00000482
+#define MSR_IA32_VMX_EXIT_CTLS          0x00000483
+#define MSR_IA32_VMX_ENTRY_CTLS         0x00000484
+#define MSR_IA32_VMX_MISC               0x00000485
+#define MSR_IA32_VMX_CR0_FIXED0         0x00000486
+#define MSR_IA32_VMX_CR0_FIXED1         0x00000487
+#define MSR_IA32_VMX_CR4_FIXED0         0x00000488
+#define MSR_IA32_VMX_CR4_FIXED1         0x00000489
+#define MSR_IA32_VMX_VMCS_ENUM          0x0000048a
+#define MSR_IA32_VMX_PROCBASED_CTLS2    0x0000048b
+#define MSR_IA32_VMX_EPT_VPID_CAP       0x0000048c
+#define MSR_IA32_VMX_TRUE_PINBASED_CTLS  0x0000048d
+#define MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x0000048e
+#define MSR_IA32_VMX_TRUE_EXIT_CTLS      0x0000048f
+#define MSR_IA32_VMX_TRUE_ENTRY_CTLS     0x00000490
+#define MSR_IA32_VMX_VMFUNC             0x00000491
+
+/* VMX_BASIC bits and bitmasks */
+#define VMX_BASIC_VMCS_SIZE_SHIFT	32
+#define VMX_BASIC_TRUE_CTLS		(1ULL << 55)
+#define VMX_BASIC_64		0x0001000000000000LLU
+#define VMX_BASIC_MEM_TYPE_SHIFT	50
+#define VMX_BASIC_MEM_TYPE_MASK	0x003c000000000000LLU
+#define VMX_BASIC_MEM_TYPE_WB	6LLU
+#define VMX_BASIC_INOUT		0x0040000000000000LLU
+
+/* MSR_IA32_VMX_MISC bits */
+#define MSR_IA32_VMX_MISC_VMWRITE_SHADOW_RO_FIELDS (1ULL << 29)
+#define MSR_IA32_VMX_MISC_PREEMPTION_TIMER_SCALE   0x1F
+/* AMD-V MSRs */
+
+#define MSR_VM_CR                       0xc0010114
+#define MSR_VM_IGNNE                    0xc0010115
+#define MSR_VM_HSAVE_PA                 0xc0010117
+
+#endif /* _UAPI_ASM_X86_MSR_INDEX_H */
-- 
2.8.1



From - Thu Nov 08 21:39:26 2018
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Newsgroups: gmane.comp.emulators.xen.devel,gmane.linux.ports.mips.general,gmane.linux.alsa.devel,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.drivers.mtd,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.scsi.open-fcoe.devel,gmane.linux.kernel.arc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kbuild.devel,gmane.linux.raid,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.nfs,gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel.mmc,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH v2 5/7] Makefile.headersinst: cleanup input files
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Cc: linux-mips@linux-mips.org, alsa-devel@alsa-project.org,
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From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Newsgroups: gmane.comp.emulators.xen.devel,gmane.linux.ports.mips.general,gmane.linux.alsa.devel,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.drivers.mtd,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.scsi.open-fcoe.devel,gmane.linux.kernel.arc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kbuild.devel,gmane.linux.raid,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.nfs,gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel.mmc,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH v2 1/7] arm: put types.h in uapi
Date: Fri,  6 Jan 2017 10:43:53 +0100
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Cc: linux-mips@linux-mips.org, alsa-devel@alsa-project.org,
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From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Newsgroups: gmane.comp.emulators.xen.devel,gmane.linux.ports.mips.general,gmane.linux.alsa.devel,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.drivers.mtd,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.scsi.open-fcoe.devel,gmane.linux.kernel.arc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kbuild.devel,gmane.linux.raid,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.nfs,gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel.mmc,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH v2 7/7] uapi: export all headers under uapi
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From: Boris Brezillon <boris.brezillon@free-electrons.com>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.alsa.devel,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.drivers.mtd,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.scsi.open-fcoe.devel,gmane.linux.kernel.arc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kbuild.devel,gmane.linux.raid,gmane.linux.kernel.metag,gmane.linux.nfs,gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel.mmc,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: ubi_io_read: error -74 (ECC error)
Date: Fri, 6 Jan 2017 12:30:53 +0100
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To: "Anurag Raghavan (RBEI/ETW11)" <Raghavan.Anurag@in.bosch.com>
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Hi Raghavan,

On Fri, 6 Jan 2017 10:07:29 +0000
"Anurag Raghavan (RBEI/ETW11)" <Raghavan.Anurag@in.bosch.com> wrote:

> Hi All,
> 
> My appdata partition could not be mounted or where the partition was not able to be used. Anyone can help me to find out the root cause of this. What are the possibilities of this ubifs corruption. Any patched are available to fix this issue.

Can you please stop sending over and over the same message in the hope
that someone will magically solve the problem for you. Pinging
maintainers is accepted but not 3 times in 2 days.

> 
> I am using the kernel version-30.3.5

It's not even a valid kernel version (probably a kerne, and we'll need a
lot more than the 10 lines of log you provided to help you debug your
driver, like the boot logs, a reference to the kernel sources you're
using, after how much time this problem occurred...

> Any kernel patches are available to solve this issue...??

What's your NAND controller? It seems related to a NAND driver issue.

Regards,

Boris

> 
> Error logs:
> 
> [    1.797141] UBI error: ubi_io_read: error -74 (ECC error) while reading 253952 bytes from PEB 445:8192, read 253952 bytes
> [    1.808274] UBIFS error (pid 491): ubifs_scan: corrupt empty space at LEB 489:233760
> [    1.816037] UBIFS error (pid 491): ubifs_scanned_corruption: corruption at LEB 489:233760
> [    1.828660] UBIFS error (pid 491): ubifs_scan: LEB 489 scanning failed
> [    1.835215] UBIFS warning (pid 491): ubifs_ro_mode: switched to read-only mode, error -117
> [    1.843502] UBIFS error (pid 491): make_reservation: cannot reserve 58 bytes in jhead 2, error -117
> [    1.852569] UBIFS error (pid 491): do_writepage: cannot write page 0 of inode 76584, error -117
> dpkg: error: unable to sync new file '/var/lib/dpkg/arch-new': Structure needs cleaning
> 
> Best regards
> 
> Raghavan Anurag
> RBEI/ETW1  
> 
> Tel. +91(422)667-4001 | Mobil 9986968950
> 
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/

From - Thu Nov 08 21:39:26 2018
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From: "Anurag Raghavan (RBEI/ETW11)" <Raghavan.Anurag@in.bosch.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.alsa.devel,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.drivers.mtd,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.scsi.open-fcoe.devel,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kbuild.devel,gmane.linux.raid,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.nfs,gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel.mmc,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: RE: ubi_io_read: error -74 (ECC error)
Date: Fri, 6 Jan 2017 11:58:40 +0000
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Sorry Boris, by mistake it happened.

I am attaching my full log here.  This issue is happening very rarely. I am=
 using mfg-tool to flash. I am recreating this issue by continuously flashi=
ng the partition.
And my kernel version is 3.0.35

Best regards

Raghavan Anurag
RBEI/ETW1 =20

Tel. +91(422)667-4001 | Mobil 9986968950



-----Original Message-----
From: linux-mtd [mailto:linux-mtd-bounces@lists.infradead.org] On Behalf Of=
 Boris Brezillon
Sent: Friday, January 06, 2017 5:01 PM
To: Anurag Raghavan (RBEI/ETW11) <Raghavan.Anurag@in.bosch.com>
Cc: linux-mips@linux-mips.org; alsa-devel@alsa-project.org; linux-ia64@vger=
.kernel.org; linux-doc@vger.kernel.org; airlied@linux.ie; linux-fbdev@vger.=
kernel.org; dri-devel@lists.freedesktop.org; linux-mtd@lists.infradead.org;=
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rnel.org; linux-am33-list@redhat.com; linux-c6x-dev@linux-c6x.org; linux-rd=
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rg; linux-alpha@vger.kernel.org; nios2-dev@lists.rocketboards.org; linuxppc=
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Subject: Re: ubi_io_read: error -74 (ECC error)

Hi Raghavan,

On Fri, 6 Jan 2017 10:07:29 +0000
"Anurag Raghavan (RBEI/ETW11)" <Raghavan.Anurag@in.bosch.com> wrote:

> Hi All,
>=20
> My appdata partition could not be mounted or where the partition was not =
able to be used. Anyone can help me to find out the root cause of this. Wha=
t are the possibilities of this ubifs corruption. Any patched are available=
 to fix this issue.

Can you please stop sending over and over the same message in the hope that=
 someone will magically solve the problem for you. Pinging maintainers is a=
ccepted but not 3 times in 2 days.

>=20
> I am using the kernel version-30.3.5

It's not even a valid kernel version (probably a kerne, and we'll need a lo=
t more than the 10 lines of log you provided to help you debug your driver,=
 like the boot logs, a reference to the kernel sources you're using, after =
how much time this problem occurred...

> Any kernel patches are available to solve this issue...??

What's your NAND controller? It seems related to a NAND driver issue.

Regards,

Boris

>=20
> Error logs:
>=20
> [    1.797141] UBI error: ubi_io_read: error -74 (ECC error) while readin=
g 253952 bytes from PEB 445:8192, read 253952 bytes
> [    1.808274] UBIFS error (pid 491): ubifs_scan: corrupt empty space at =
LEB 489:233760
> [    1.816037] UBIFS error (pid 491): ubifs_scanned_corruption: corruptio=
n at LEB 489:233760
> [    1.828660] UBIFS error (pid 491): ubifs_scan: LEB 489 scanning failed
> [    1.835215] UBIFS warning (pid 491): ubifs_ro_mode: switched to read-o=
nly mode, error -117
> [    1.843502] UBIFS error (pid 491): make_reservation: cannot reserve 58=
 bytes in jhead 2, error -117
> [    1.852569] UBIFS error (pid 491): do_writepage: cannot write page 0 o=
f inode 76584, error -117
> dpkg: error: unable to sync new file '/var/lib/dpkg/arch-new':=20
> Structure needs cleaning
>=20
> Best regards
>=20
> Raghavan Anurag
> RBEI/ETW1
>=20
> Tel. +91(422)667-4001 | Mobil 9986968950
>=20
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

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Subject: Re: [PATCH v2 4/7] x86: put msr-index.h in uapi
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On Fri, Jan 06, 2017 at 10:43:56AM +0100, Nicolas Dichtel wrote:
> This header file is exported, thus move it to uapi.

It should rather not be exported - please remove it from
arch/x86/include/uapi/asm/Kbuild instead.

Thanks.

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.



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Subject: Re: [PATCH v2 4/7] x86: put msr-index.h in uapi
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On Fri, Jan 6, 2017 at 11:43 AM, Nicolas Dichtel
<nicolas.dichtel@6wind.com> wrote:
> This header file is exported, thus move it to uapi.

Just hint for the future:
-M (move)
-C (copy)
-D (delete) [though this is NOT for applying]

-- 
With Best Regards,
Andy Shevchenko

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The cr16 clocks of the CPUs are usually not synchron.  Nevertheless, it seems
that each socket (with two cores) of a C8000 workstation is fed by the same
clock source, which makes the cr16 clocks of each socket syncron. Let's try to
detect such situations and mark the cr16 clocksource and the sched_clock stable
on single-socket and single-core machines.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index a3661ee..ea4e6ae 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -103,6 +103,8 @@ struct cpuinfo_parisc {
 	unsigned long bh_count;     /* number of times bh was invoked */
 	unsigned long fp_rev;
 	unsigned long fp_model;
+	unsigned long cpu_num;      /* CPU number from PAT firmware */
+	unsigned long cpu_loc;      /* CPU location from PAT firmware */
 	unsigned int state;
 	struct parisc_device *dev;
 	unsigned long loops_per_jiffy;
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 85de47f..b1f33d7 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -94,7 +94,7 @@ static int processor_probe(struct parisc_device *dev)
 	unsigned long txn_addr;
 	unsigned long cpuid;
 	struct cpuinfo_parisc *p;
-	struct pdc_pat_cpu_num cpu_info __maybe_unused;
+	struct pdc_pat_cpu_num cpu_info = { };
 
 #ifdef CONFIG_SMP
 	if (num_online_cpus() >= nr_cpu_ids) {
@@ -180,6 +180,8 @@ static int processor_probe(struct parisc_device *dev)
 	p->hpa = dev->hpa.start;	/* save CPU hpa */
 	p->cpuid = cpuid;	/* save CPU id */
 	p->txn_addr = txn_addr;	/* save CPU IRQ address */
+	p->cpu_num = cpu_info.cpu_num;
+	p->cpu_loc = cpu_info.cpu_loc;
 #ifdef CONFIG_SMP
 	/*
 	** FIXME: review if any other initialization is clobbered
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 1e22f98..3138de7 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -242,14 +242,30 @@ void __init time_init(void)
 static int __init init_cr16_clocksource(void)
 {
 	/*
-	 * The cr16 interval timers are not syncronized across CPUs, so mark
-	 * them unstable and lower rating on SMP systems.
+	 * The cr16 interval timers are not syncronized across CPUs on
+	 * different sockets, so mark them unstable and lower rating on
+	 * multi-socket SMP systems.
 	 */
 	if (num_online_cpus() > 1) {
-		clocksource_cr16.flags = CLOCK_SOURCE_UNSTABLE;
-		clocksource_cr16.rating = 0;
+		int cpu;
+		unsigned long cpu0_loc;
+		cpu0_loc = per_cpu(cpu_data, 0).cpu_loc;
+
+		for_each_online_cpu(cpu) {
+			if (cpu0_loc &&
+			    cpu0_loc == per_cpu(cpu_data, cpu).cpu_loc)
+				continue;
+
+			clocksource_cr16.flags = CLOCK_SOURCE_UNSTABLE;
+			clocksource_cr16.rating = 0;
+			break;
+		}
 	}
 
+	/* mark sched_clock stable if cr16 clocks are in sync */
+	if (clocksource_cr16.flags == CLOCK_SOURCE_IS_CONTINUOUS)
+		set_sched_clock_stable();
+
 	/* register at clocksource framework */
 	clocksource_register_hz(&clocksource_cr16,
 		100 * PAGE0->mem_10msec);
--
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Subject: Re: [PATCH v2 7/7] uapi: export all headers under uapi directories
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Archived-At: <http://permalink.gmane.org/gmane.linux.kbuild.devel/16262>

On Fri, Jan 06, 2017 at 10:43:59AM +0100, Nicolas Dichtel wrote:
> Regularly, when a new header is created in include/uapi/, the developer
> forgets to add it in the corresponding Kbuild file. This error is usually
> detected after the release is out.
> 
> In fact, all headers under uapi directories should be exported, thus it's
> useless to have an exhaustive list.
> 
> After this patch, the following files, which were not exported, are now
> exported (with make headers_install_all):
> asm-unicore32/shmparam.h
> asm-unicore32/ucontext.h
> asm-hexagon/shmparam.h
> asm-mips/ucontext.h
> asm-mips/hwcap.h
> asm-mips/reg.h
> drm/vgem_drm.h
> drm/armada_drm.h
> drm/omap_drm.h
> drm/etnaviv_drm.h
> asm-tile/shmparam.h
> asm-blackfin/shmparam.h
> asm-blackfin/ucontext.h
> asm-powerpc/perf_regs.h
> rdma/qedr-abi.h
> asm-parisc/kvm_para.h
> asm-openrisc/shmparam.h
> asm-nios2/kvm_para.h
> asm-nios2/ucontext.h
> asm-sh/kvm_para.h
> asm-sh/ucontext.h
> asm-xtensa/kvm_para.h
> asm-avr32/kvm_para.h
> asm-m32r/kvm_para.h
> asm-h8300/shmparam.h
> asm-h8300/ucontext.h
> asm-metag/kvm_para.h
> asm-metag/shmparam.h
> asm-metag/ucontext.h
> asm-m68k/kvm_para.h
> asm-m68k/shmparam.h
> linux/bcache.h
> linux/kvm.h
> linux/kvm_para.h
> linux/kfd_ioctl.h
> linux/cryptouser.h
> linux/kcm.h
> linux/kcov.h
> linux/seg6_iptunnel.h
> linux/stm.h
> linux/genwqe
> linux/genwqe/.install
> linux/genwqe/genwqe_card.h
> linux/genwqe/..install.cmd
> linux/seg6.h
> linux/cifs
> linux/cifs/.install
> linux/cifs/cifs_mount.h
> linux/cifs/..install.cmd
> linux/auto_dev-ioctl.h
> 
> Thanks to Julien Floret <julien.floret@6wind.com> for the tip to get all
> subdirs with a pure makefile command.
> 
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

Makes lots of sense.

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> ---
>  Documentation/kbuild/makefiles.txt          |  41 ++-
>  arch/alpha/include/uapi/asm/Kbuild          |  41 ---
>  arch/arc/include/uapi/asm/Kbuild            |   3 -
>  arch/arm/include/uapi/asm/Kbuild            |  17 -
>  arch/arm64/include/uapi/asm/Kbuild          |  18 --
>  arch/avr32/include/uapi/asm/Kbuild          |  20 --
>  arch/blackfin/include/uapi/asm/Kbuild       |  17 -
>  arch/c6x/include/uapi/asm/Kbuild            |   8 -
>  arch/cris/include/uapi/arch-v10/arch/Kbuild |   5 -
>  arch/cris/include/uapi/arch-v32/arch/Kbuild |   3 -
>  arch/cris/include/uapi/asm/Kbuild           |  43 +--
>  arch/frv/include/uapi/asm/Kbuild            |  33 --
>  arch/h8300/include/uapi/asm/Kbuild          |  28 --
>  arch/hexagon/include/asm/Kbuild             |   3 -
>  arch/hexagon/include/uapi/asm/Kbuild        |  13 -
>  arch/ia64/include/uapi/asm/Kbuild           |  45 ---
>  arch/m32r/include/uapi/asm/Kbuild           |  31 --
>  arch/m68k/include/uapi/asm/Kbuild           |  24 --
>  arch/metag/include/uapi/asm/Kbuild          |   8 -
>  arch/microblaze/include/uapi/asm/Kbuild     |  32 --
>  arch/mips/include/uapi/asm/Kbuild           |  37 ---
>  arch/mn10300/include/uapi/asm/Kbuild        |  32 --
>  arch/nios2/include/uapi/asm/Kbuild          |   4 +-
>  arch/openrisc/include/asm/Kbuild            |   3 -
>  arch/openrisc/include/uapi/asm/Kbuild       |   8 -
>  arch/parisc/include/uapi/asm/Kbuild         |  28 --
>  arch/powerpc/include/uapi/asm/Kbuild        |  45 ---
>  arch/s390/include/uapi/asm/Kbuild           |  52 ---
>  arch/score/include/asm/Kbuild               |   4 -
>  arch/score/include/uapi/asm/Kbuild          |  32 --
>  arch/sh/include/uapi/asm/Kbuild             |  23 --
>  arch/sparc/include/uapi/asm/Kbuild          |  48 ---
>  arch/tile/include/asm/Kbuild                |   3 -
>  arch/tile/include/uapi/arch/Kbuild          |  17 -
>  arch/tile/include/uapi/asm/Kbuild           |  19 +-
>  arch/unicore32/include/uapi/asm/Kbuild      |   6 -
>  arch/x86/include/uapi/asm/Kbuild            |  59 ----
>  arch/xtensa/include/uapi/asm/Kbuild         |  23 --
>  include/Kbuild                              |   2 -
>  include/asm-generic/Kbuild.asm              |   1 -
>  include/scsi/fc/Kbuild                      |   0
>  include/uapi/Kbuild                         |  15 -
>  include/uapi/asm-generic/Kbuild             |  36 ---
>  include/uapi/asm-generic/Kbuild.asm         |  62 ++--
>  include/uapi/drm/Kbuild                     |  22 --
>  include/uapi/linux/Kbuild                   | 482 ----------------------------
>  include/uapi/linux/android/Kbuild           |   2 -
>  include/uapi/linux/byteorder/Kbuild         |   3 -
>  include/uapi/linux/caif/Kbuild              |   3 -
>  include/uapi/linux/can/Kbuild               |   6 -
>  include/uapi/linux/dvb/Kbuild               |   9 -
>  include/uapi/linux/hdlc/Kbuild              |   2 -
>  include/uapi/linux/hsi/Kbuild               |   2 -
>  include/uapi/linux/iio/Kbuild               |   3 -
>  include/uapi/linux/isdn/Kbuild              |   2 -
>  include/uapi/linux/mmc/Kbuild               |   2 -
>  include/uapi/linux/netfilter/Kbuild         |  89 -----
>  include/uapi/linux/netfilter/ipset/Kbuild   |   5 -
>  include/uapi/linux/netfilter_arp/Kbuild     |   3 -
>  include/uapi/linux/netfilter_bridge/Kbuild  |  18 --
>  include/uapi/linux/netfilter_ipv4/Kbuild    |  10 -
>  include/uapi/linux/netfilter_ipv6/Kbuild    |  13 -
>  include/uapi/linux/nfsd/Kbuild              |   6 -
>  include/uapi/linux/raid/Kbuild              |   3 -
>  include/uapi/linux/spi/Kbuild               |   2 -
>  include/uapi/linux/sunrpc/Kbuild            |   2 -
>  include/uapi/linux/tc_act/Kbuild            |  15 -
>  include/uapi/linux/tc_ematch/Kbuild         |   5 -
>  include/uapi/linux/usb/Kbuild               |  12 -
>  include/uapi/linux/wimax/Kbuild             |   2 -
>  include/uapi/misc/Kbuild                    |   2 -
>  include/uapi/mtd/Kbuild                     |   6 -
>  include/uapi/rdma/Kbuild                    |  18 --
>  include/uapi/rdma/hfi/Kbuild                |   2 -
>  include/uapi/scsi/Kbuild                    |   6 -
>  include/uapi/scsi/fc/Kbuild                 |   5 -
>  include/uapi/sound/Kbuild                   |  16 -
>  include/uapi/video/Kbuild                   |   4 -
>  include/uapi/xen/Kbuild                     |   5 -
>  include/video/Kbuild                        |   0
>  scripts/Makefile.headersinst                |  39 +--
>  81 files changed, 73 insertions(+), 1745 deletions(-)
>  delete mode 100644 arch/cris/include/uapi/arch-v10/arch/Kbuild
>  delete mode 100644 arch/cris/include/uapi/arch-v32/arch/Kbuild
>  delete mode 100644 arch/tile/include/uapi/arch/Kbuild
>  delete mode 100644 include/Kbuild
>  delete mode 100644 include/asm-generic/Kbuild.asm
>  delete mode 100644 include/scsi/fc/Kbuild
>  delete mode 100644 include/uapi/Kbuild
>  delete mode 100644 include/uapi/asm-generic/Kbuild
>  delete mode 100644 include/uapi/drm/Kbuild
>  delete mode 100644 include/uapi/linux/Kbuild
>  delete mode 100644 include/uapi/linux/android/Kbuild
>  delete mode 100644 include/uapi/linux/byteorder/Kbuild
>  delete mode 100644 include/uapi/linux/caif/Kbuild
>  delete mode 100644 include/uapi/linux/can/Kbuild
>  delete mode 100644 include/uapi/linux/dvb/Kbuild
>  delete mode 100644 include/uapi/linux/hdlc/Kbuild
>  delete mode 100644 include/uapi/linux/hsi/Kbuild
>  delete mode 100644 include/uapi/linux/iio/Kbuild
>  delete mode 100644 include/uapi/linux/isdn/Kbuild
>  delete mode 100644 include/uapi/linux/mmc/Kbuild
>  delete mode 100644 include/uapi/linux/netfilter/Kbuild
>  delete mode 100644 include/uapi/linux/netfilter/ipset/Kbuild
>  delete mode 100644 include/uapi/linux/netfilter_arp/Kbuild
>  delete mode 100644 include/uapi/linux/netfilter_bridge/Kbuild
>  delete mode 100644 include/uapi/linux/netfilter_ipv4/Kbuild
>  delete mode 100644 include/uapi/linux/netfilter_ipv6/Kbuild
>  delete mode 100644 include/uapi/linux/nfsd/Kbuild
>  delete mode 100644 include/uapi/linux/raid/Kbuild
>  delete mode 100644 include/uapi/linux/spi/Kbuild
>  delete mode 100644 include/uapi/linux/sunrpc/Kbuild
>  delete mode 100644 include/uapi/linux/tc_act/Kbuild
>  delete mode 100644 include/uapi/linux/tc_ematch/Kbuild
>  delete mode 100644 include/uapi/linux/usb/Kbuild
>  delete mode 100644 include/uapi/linux/wimax/Kbuild
>  delete mode 100644 include/uapi/misc/Kbuild
>  delete mode 100644 include/uapi/mtd/Kbuild
>  delete mode 100644 include/uapi/rdma/Kbuild
>  delete mode 100644 include/uapi/rdma/hfi/Kbuild
>  delete mode 100644 include/uapi/scsi/Kbuild
>  delete mode 100644 include/uapi/scsi/fc/Kbuild
>  delete mode 100644 include/uapi/sound/Kbuild
>  delete mode 100644 include/uapi/video/Kbuild
>  delete mode 100644 include/uapi/xen/Kbuild
>  delete mode 100644 include/video/Kbuild
> 
> diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
> index 37b525d329ae..53e31061ff18 100644
> --- a/Documentation/kbuild/makefiles.txt
> +++ b/Documentation/kbuild/makefiles.txt
> @@ -44,7 +44,7 @@ This document describes the Linux kernel Makefiles.
>  	   --- 6.11 Post-link pass
>  
>  	=== 7 Kbuild syntax for exported headers
> -		--- 7.1 header-y
> +		--- 7.1 subdir-y
>  		--- 7.2 genhdr-y
>  		--- 7.3 generic-y
>  		--- 7.4 generated-y
> @@ -1235,7 +1235,7 @@ When kbuild executes, the following steps are followed (roughly):
>  	that may be shared between individual architectures.
>  	The recommended approach how to use a generic header file is
>  	to list the file in the Kbuild file.
> -	See "7.4 generic-y" for further info on syntax etc.
> +	See "7.3 generic-y" for further info on syntax etc.
>  
>  --- 6.11 Post-link pass
>  
> @@ -1262,37 +1262,36 @@ The pre-processing does:
>  - drop include of compiler.h
>  - drop all sections that are kernel internal (guarded by ifdef __KERNEL__)
>  
> -Each relevant directory contains a file name "Kbuild" which specifies the
> -headers to be exported.
> +All headers under include/uapi/, include/generated/uapi/,
> +arch/<arch>/include/uapi/asm/ and arch/<arch>/include/generated/uapi/asm/
> +are exported.
> +
> +A Kbuild file may be defined under arch/<arch>/include/uapi/asm/ and
> +arch/<arch>/include/asm/ to list asm files coming from asm-generic.
>  See subsequent chapter for the syntax of the Kbuild file.
>  
> -	--- 7.1 header-y
> +	--- 7.1 subdir-y
>  
> -	header-y specifies header files to be exported.
> +	subdir-y may be used to specify a subdirectory to be exported.
>  
>  		Example:
> -			#include/linux/Kbuild
> -			header-y += usb/
> -			header-y += aio_abi.h
> +			#arch/cris/include/uapi/asm/Kbuild
> +			subdir-y += ../arch-v10/arch/
> +			subdir-y += ../arch-v32/arch/
>  
> -	The convention is to list one file per line and
> +	The convention is to list one subdir per line and
>  	preferably in alphabetic order.
>  
> -	header-y also specifies which subdirectories to visit.
> -	A subdirectory is identified by a trailing '/' which
> -	can be seen in the example above for the usb subdirectory.
> -
> -	Subdirectories are visited before their parent directories.
> -
>  	--- 7.2 genhdr-y
>  
> -	genhdr-y specifies generated files to be exported.
> -	Generated files are special as they need to be looked
> -	up in another directory when doing 'make O=...' builds.
> +	genhdr-y specifies asm files to be generated.
>  
>  		Example:
> -			#include/linux/Kbuild
> -			genhdr-y += version.h
> +			#arch/x86/include/uapi/asm/Kbuild
> +			genhdr-y += unistd_32.h
> +			genhdr-y += unistd_64.h
> +			genhdr-y += unistd_x32.h
> +
>  
>  	--- 7.3 generic-y
>  
> diff --git a/arch/alpha/include/uapi/asm/Kbuild b/arch/alpha/include/uapi/asm/Kbuild
> index d96f2ef5b639..b15bf6bc0e94 100644
> --- a/arch/alpha/include/uapi/asm/Kbuild
> +++ b/arch/alpha/include/uapi/asm/Kbuild
> @@ -1,43 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += a.out.h
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += compiler.h
> -header-y += console.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += fpu.h
> -header-y += gentrap.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += pal.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += reg.h
> -header-y += regdef.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += sysinfo.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/arc/include/uapi/asm/Kbuild b/arch/arc/include/uapi/asm/Kbuild
> index f50d02df78d5..b15bf6bc0e94 100644
> --- a/arch/arc/include/uapi/asm/Kbuild
> +++ b/arch/arc/include/uapi/asm/Kbuild
> @@ -1,5 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -header-y += elf.h
> -header-y += page.h
> -header-y += cachectl.h
> diff --git a/arch/arm/include/uapi/asm/Kbuild b/arch/arm/include/uapi/asm/Kbuild
> index 46a76cd6acb6..607f702c2d62 100644
> --- a/arch/arm/include/uapi/asm/Kbuild
> +++ b/arch/arm/include/uapi/asm/Kbuild
> @@ -1,23 +1,6 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> -header-y += auxvec.h
> -header-y += byteorder.h
> -header-y += fcntl.h
> -header-y += hwcap.h
> -header-y += ioctls.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += perf_regs.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += unistd.h
>  genhdr-y += unistd-common.h
>  genhdr-y += unistd-oabi.h
>  genhdr-y += unistd-eabi.h
> diff --git a/arch/arm64/include/uapi/asm/Kbuild b/arch/arm64/include/uapi/asm/Kbuild
> index 825b0fe51c2b..13a97aa2285f 100644
> --- a/arch/arm64/include/uapi/asm/Kbuild
> +++ b/arch/arm64/include/uapi/asm/Kbuild
> @@ -2,21 +2,3 @@
>  include include/uapi/asm-generic/Kbuild.asm
>  
>  generic-y += kvm_para.h
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += fcntl.h
> -header-y += hwcap.h
> -header-y += kvm_para.h
> -header-y += perf_regs.h
> -header-y += param.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += ucontext.h
> -header-y += unistd.h
> diff --git a/arch/avr32/include/uapi/asm/Kbuild b/arch/avr32/include/uapi/asm/Kbuild
> index 08d8a3d76ea8..610395083364 100644
> --- a/arch/avr32/include/uapi/asm/Kbuild
> +++ b/arch/avr32/include/uapi/asm/Kbuild
> @@ -1,26 +1,6 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> -header-y += auxvec.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
>  generic-y += bitsperlong.h
>  generic-y += errno.h
>  generic-y += fcntl.h
> diff --git a/arch/blackfin/include/uapi/asm/Kbuild b/arch/blackfin/include/uapi/asm/Kbuild
> index 0bd28f77abc3..b15bf6bc0e94 100644
> --- a/arch/blackfin/include/uapi/asm/Kbuild
> +++ b/arch/blackfin/include/uapi/asm/Kbuild
> @@ -1,19 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += bfin_sport.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += fcntl.h
> -header-y += fixed_code.h
> -header-y += ioctls.h
> -header-y += kvm_para.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += unistd.h
> diff --git a/arch/c6x/include/uapi/asm/Kbuild b/arch/c6x/include/uapi/asm/Kbuild
> index e9bc2b2b8147..13a97aa2285f 100644
> --- a/arch/c6x/include/uapi/asm/Kbuild
> +++ b/arch/c6x/include/uapi/asm/Kbuild
> @@ -2,11 +2,3 @@
>  include include/uapi/asm-generic/Kbuild.asm
>  
>  generic-y += kvm_para.h
> -
> -header-y += byteorder.h
> -header-y += kvm_para.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += swab.h
> -header-y += unistd.h
> diff --git a/arch/cris/include/uapi/arch-v10/arch/Kbuild b/arch/cris/include/uapi/arch-v10/arch/Kbuild
> deleted file mode 100644
> index 9048c87a782b..000000000000
> --- a/arch/cris/include/uapi/arch-v10/arch/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += sv_addr.agh
> -header-y += sv_addr_ag.h
> -header-y += svinto.h
> -header-y += user.h
> diff --git a/arch/cris/include/uapi/arch-v32/arch/Kbuild b/arch/cris/include/uapi/arch-v32/arch/Kbuild
> deleted file mode 100644
> index 59efffd16b61..000000000000
> --- a/arch/cris/include/uapi/arch-v32/arch/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += cryptocop.h
> -header-y += user.h
> diff --git a/arch/cris/include/uapi/asm/Kbuild b/arch/cris/include/uapi/asm/Kbuild
> index d5564a0ae66a..d0c5471856e0 100644
> --- a/arch/cris/include/uapi/asm/Kbuild
> +++ b/arch/cris/include/uapi/asm/Kbuild
> @@ -1,44 +1,5 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> -header-y += ../arch-v10/arch/
> -header-y += ../arch-v32/arch/
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += elf.h
> -header-y += elf_v10.h
> -header-y += elf_v32.h
> -header-y += errno.h
> -header-y += ethernet.h
> -header-y += etraxgpio.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += ptrace_v10.h
> -header-y += ptrace_v32.h
> -header-y += resource.h
> -header-y += rs485.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += sync_serial.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> +subdir-y += ../arch-v10/arch/
> +subdir-y += ../arch-v32/arch/
> diff --git a/arch/frv/include/uapi/asm/Kbuild b/arch/frv/include/uapi/asm/Kbuild
> index 42a2b33461c0..b15bf6bc0e94 100644
> --- a/arch/frv/include/uapi/asm/Kbuild
> +++ b/arch/frv/include/uapi/asm/Kbuild
> @@ -1,35 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += registers.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/h8300/include/uapi/asm/Kbuild b/arch/h8300/include/uapi/asm/Kbuild
> index fb6101a5d4f1..b15bf6bc0e94 100644
> --- a/arch/h8300/include/uapi/asm/Kbuild
> +++ b/arch/h8300/include/uapi/asm/Kbuild
> @@ -1,30 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += siginfo.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
> index db8ddabc6bd2..f3b1ceb5c1e4 100644
> --- a/arch/hexagon/include/asm/Kbuild
> +++ b/arch/hexagon/include/asm/Kbuild
> @@ -1,6 +1,3 @@
> -
> -header-y += ucontext.h
> -
>  generic-y += auxvec.h
>  generic-y += barrier.h
>  generic-y += bug.h
> diff --git a/arch/hexagon/include/uapi/asm/Kbuild b/arch/hexagon/include/uapi/asm/Kbuild
> index c31706c38631..b15bf6bc0e94 100644
> --- a/arch/hexagon/include/uapi/asm/Kbuild
> +++ b/arch/hexagon/include/uapi/asm/Kbuild
> @@ -1,15 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += kvm_para.h
> -header-y += param.h
> -header-y += ptrace.h
> -header-y += registers.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += swab.h
> -header-y += unistd.h
> -header-y += user.h
> diff --git a/arch/ia64/include/uapi/asm/Kbuild b/arch/ia64/include/uapi/asm/Kbuild
> index 891002bbb995..13a97aa2285f 100644
> --- a/arch/ia64/include/uapi/asm/Kbuild
> +++ b/arch/ia64/include/uapi/asm/Kbuild
> @@ -2,48 +2,3 @@
>  include include/uapi/asm-generic/Kbuild.asm
>  
>  generic-y += kvm_para.h
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += break.h
> -header-y += byteorder.h
> -header-y += cmpxchg.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += fpu.h
> -header-y += gcc_intrin.h
> -header-y += ia64regs.h
> -header-y += intel_intrin.h
> -header-y += intrinsics.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += perfmon.h
> -header-y += perfmon_default_smpl.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += ptrace_offsets.h
> -header-y += resource.h
> -header-y += rse.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> -header-y += ustack.h
> diff --git a/arch/m32r/include/uapi/asm/Kbuild b/arch/m32r/include/uapi/asm/Kbuild
> index 43937a61d6cf..b15bf6bc0e94 100644
> --- a/arch/m32r/include/uapi/asm/Kbuild
> +++ b/arch/m32r/include/uapi/asm/Kbuild
> @@ -1,33 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/m68k/include/uapi/asm/Kbuild b/arch/m68k/include/uapi/asm/Kbuild
> index 6a2d257bdfb2..64368077235a 100644
> --- a/arch/m68k/include/uapi/asm/Kbuild
> +++ b/arch/m68k/include/uapi/asm/Kbuild
> @@ -9,27 +9,3 @@ generic-y += socket.h
>  generic-y += sockios.h
>  generic-y += termbits.h
>  generic-y += termios.h
> -
> -header-y += a.out.h
> -header-y += bootinfo.h
> -header-y += bootinfo-amiga.h
> -header-y += bootinfo-apollo.h
> -header-y += bootinfo-atari.h
> -header-y += bootinfo-hp300.h
> -header-y += bootinfo-mac.h
> -header-y += bootinfo-q40.h
> -header-y += bootinfo-vme.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += fcntl.h
> -header-y += ioctls.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += unistd.h
> diff --git a/arch/metag/include/uapi/asm/Kbuild b/arch/metag/include/uapi/asm/Kbuild
> index ab78be2b6eb0..b29731ebd7a9 100644
> --- a/arch/metag/include/uapi/asm/Kbuild
> +++ b/arch/metag/include/uapi/asm/Kbuild
> @@ -1,14 +1,6 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> -header-y += byteorder.h
> -header-y += ech.h
> -header-y += ptrace.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += swab.h
> -header-y += unistd.h
> -
>  generic-y += mman.h
>  generic-y += resource.h
>  generic-y += setup.h
> diff --git a/arch/microblaze/include/uapi/asm/Kbuild b/arch/microblaze/include/uapi/asm/Kbuild
> index 1aac99f87df1..2178c78c7c1a 100644
> --- a/arch/microblaze/include/uapi/asm/Kbuild
> +++ b/arch/microblaze/include/uapi/asm/Kbuild
> @@ -2,35 +2,3 @@
>  include include/uapi/asm-generic/Kbuild.asm
>  
>  generic-y += types.h
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += elf.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += unistd.h
> diff --git a/arch/mips/include/uapi/asm/Kbuild b/arch/mips/include/uapi/asm/Kbuild
> index f2cf41461146..a0266feba9e6 100644
> --- a/arch/mips/include/uapi/asm/Kbuild
> +++ b/arch/mips/include/uapi/asm/Kbuild
> @@ -2,40 +2,3 @@
>  include include/uapi/asm-generic/Kbuild.asm
>  
>  generic-y += ipcbuf.h
> -
> -header-y += auxvec.h
> -header-y += bitfield.h
> -header-y += bitsperlong.h
> -header-y += break.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += inst.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += sgidefs.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += sysmips.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/mn10300/include/uapi/asm/Kbuild b/arch/mn10300/include/uapi/asm/Kbuild
> index 040178cdb3eb..b15bf6bc0e94 100644
> --- a/arch/mn10300/include/uapi/asm/Kbuild
> +++ b/arch/mn10300/include/uapi/asm/Kbuild
> @@ -1,34 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/nios2/include/uapi/asm/Kbuild b/arch/nios2/include/uapi/asm/Kbuild
> index e0bb972a50d7..766455d0d291 100644
> --- a/arch/nios2/include/uapi/asm/Kbuild
> +++ b/arch/nios2/include/uapi/asm/Kbuild
> @@ -1,5 +1,3 @@
> +# UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += elf.h
> -
>  generic-y += ucontext.h
> diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
> index 2832f031fb11..561915716fd9 100644
> --- a/arch/openrisc/include/asm/Kbuild
> +++ b/arch/openrisc/include/asm/Kbuild
> @@ -1,6 +1,3 @@
> -
> -header-y += ucontext.h
> -
>  generic-y += atomic.h
>  generic-y += auxvec.h
>  generic-y += barrier.h
> diff --git a/arch/openrisc/include/uapi/asm/Kbuild b/arch/openrisc/include/uapi/asm/Kbuild
> index 80761eb82b5f..b15bf6bc0e94 100644
> --- a/arch/openrisc/include/uapi/asm/Kbuild
> +++ b/arch/openrisc/include/uapi/asm/Kbuild
> @@ -1,10 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += byteorder.h
> -header-y += elf.h
> -header-y += kvm_para.h
> -header-y += param.h
> -header-y += ptrace.h
> -header-y += sigcontext.h
> -header-y += unistd.h
> diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
> index 348356c99514..3971c60a7e7f 100644
> --- a/arch/parisc/include/uapi/asm/Kbuild
> +++ b/arch/parisc/include/uapi/asm/Kbuild
> @@ -2,31 +2,3 @@
>  include include/uapi/asm-generic/Kbuild.asm
>  
>  generic-y += resource.h
> -
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += pdc.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/powerpc/include/uapi/asm/Kbuild b/arch/powerpc/include/uapi/asm/Kbuild
> index dab3717e3ea0..b15bf6bc0e94 100644
> --- a/arch/powerpc/include/uapi/asm/Kbuild
> +++ b/arch/powerpc/include/uapi/asm/Kbuild
> @@ -1,47 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += bootx.h
> -header-y += byteorder.h
> -header-y += cputable.h
> -header-y += eeh.h
> -header-y += elf.h
> -header-y += epapr_hcalls.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += nvram.h
> -header-y += opal-prd.h
> -header-y += param.h
> -header-y += perf_event.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ps3fb.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += spu_info.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += tm.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild
> index bf736e764cb4..b15bf6bc0e94 100644
> --- a/arch/s390/include/uapi/asm/Kbuild
> +++ b/arch/s390/include/uapi/asm/Kbuild
> @@ -1,54 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += chpid.h
> -header-y += chsc.h
> -header-y += clp.h
> -header-y += cmb.h
> -header-y += dasd.h
> -header-y += debug.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += hypfs.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm.h
> -header-y += kvm_para.h
> -header-y += kvm_perf.h
> -header-y += kvm_virtio.h
> -header-y += mman.h
> -header-y += monwriter.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += qeth.h
> -header-y += resource.h
> -header-y += schid.h
> -header-y += sclp_ctl.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sie.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += tape390.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> -header-y += virtio-ccw.h
> -header-y += vtoc.h
> -header-y += zcrypt.h
> diff --git a/arch/score/include/asm/Kbuild b/arch/score/include/asm/Kbuild
> index a05218ff3fe4..128ca7ec0220 100644
> --- a/arch/score/include/asm/Kbuild
> +++ b/arch/score/include/asm/Kbuild
> @@ -1,7 +1,3 @@
> -
> -header-y +=
> -
> -
>  generic-y += barrier.h
>  generic-y += clkdev.h
>  generic-y += cputime.h
> diff --git a/arch/score/include/uapi/asm/Kbuild b/arch/score/include/uapi/asm/Kbuild
> index 040178cdb3eb..b15bf6bc0e94 100644
> --- a/arch/score/include/uapi/asm/Kbuild
> +++ b/arch/score/include/uapi/asm/Kbuild
> @@ -1,34 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/sh/include/uapi/asm/Kbuild b/arch/sh/include/uapi/asm/Kbuild
> index 60613ae78513..b15bf6bc0e94 100644
> --- a/arch/sh/include/uapi/asm/Kbuild
> +++ b/arch/sh/include/uapi/asm/Kbuild
> @@ -1,25 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += cpu-features.h
> -header-y += hw_breakpoint.h
> -header-y += ioctls.h
> -header-y += posix_types.h
> -header-y += posix_types_32.h
> -header-y += posix_types_64.h
> -header-y += ptrace.h
> -header-y += ptrace_32.h
> -header-y += ptrace_64.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += types.h
> -header-y += unistd.h
> -header-y += unistd_32.h
> -header-y += unistd_64.h
> diff --git a/arch/sparc/include/uapi/asm/Kbuild b/arch/sparc/include/uapi/asm/Kbuild
> index b5843ee09fb5..b15bf6bc0e94 100644
> --- a/arch/sparc/include/uapi/asm/Kbuild
> +++ b/arch/sparc/include/uapi/asm/Kbuild
> @@ -1,50 +1,2 @@
>  # UAPI Header export list
> -# User exported sparc header files
> -
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += apc.h
> -header-y += asi.h
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += display7seg.h
> -header-y += envctrl.h
> -header-y += errno.h
> -header-y += fbio.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += jsflash.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += openpromio.h
> -header-y += param.h
> -header-y += perfctr.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += psr.h
> -header-y += psrcompat.h
> -header-y += pstate.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += traps.h
> -header-y += uctx.h
> -header-y += unistd.h
> -header-y += utrap.h
> -header-y += watchdog.h
> diff --git a/arch/tile/include/asm/Kbuild b/arch/tile/include/asm/Kbuild
> index 2d1f5638974c..057eaa533877 100644
> --- a/arch/tile/include/asm/Kbuild
> +++ b/arch/tile/include/asm/Kbuild
> @@ -1,6 +1,3 @@
> -
> -header-y += ../arch/
> -
>  generic-y += bug.h
>  generic-y += bugs.h
>  generic-y += clkdev.h
> diff --git a/arch/tile/include/uapi/arch/Kbuild b/arch/tile/include/uapi/arch/Kbuild
> deleted file mode 100644
> index 97dfbecec6b6..000000000000
> --- a/arch/tile/include/uapi/arch/Kbuild
> +++ /dev/null
> @@ -1,17 +0,0 @@
> -# UAPI Header export list
> -header-y += abi.h
> -header-y += chip.h
> -header-y += chip_tilegx.h
> -header-y += chip_tilepro.h
> -header-y += icache.h
> -header-y += interrupts.h
> -header-y += interrupts_32.h
> -header-y += interrupts_64.h
> -header-y += opcode.h
> -header-y += opcode_tilegx.h
> -header-y += opcode_tilepro.h
> -header-y += sim.h
> -header-y += sim_def.h
> -header-y += spr_def.h
> -header-y += spr_def_32.h
> -header-y += spr_def_64.h
> diff --git a/arch/tile/include/uapi/asm/Kbuild b/arch/tile/include/uapi/asm/Kbuild
> index c20db8e428bf..e0a50111e07f 100644
> --- a/arch/tile/include/uapi/asm/Kbuild
> +++ b/arch/tile/include/uapi/asm/Kbuild
> @@ -1,21 +1,6 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += hardwall.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += ucontext.h
> -header-y += unistd.h
> -
>  generic-y += ucontext.h
> +
> +subdir-y += ../arch
> diff --git a/arch/unicore32/include/uapi/asm/Kbuild b/arch/unicore32/include/uapi/asm/Kbuild
> index 0514d7ad6855..13a97aa2285f 100644
> --- a/arch/unicore32/include/uapi/asm/Kbuild
> +++ b/arch/unicore32/include/uapi/asm/Kbuild
> @@ -1,10 +1,4 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> -header-y += byteorder.h
> -header-y += kvm_para.h
> -header-y += ptrace.h
> -header-y += sigcontext.h
> -header-y += unistd.h
> -
>  generic-y += kvm_para.h
> diff --git a/arch/x86/include/uapi/asm/Kbuild b/arch/x86/include/uapi/asm/Kbuild
> index 3dec769cadf7..83b6e9a0dce4 100644
> --- a/arch/x86/include/uapi/asm/Kbuild
> +++ b/arch/x86/include/uapi/asm/Kbuild
> @@ -4,62 +4,3 @@ include include/uapi/asm-generic/Kbuild.asm
>  genhdr-y += unistd_32.h
>  genhdr-y += unistd_64.h
>  genhdr-y += unistd_x32.h
> -header-y += a.out.h
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += boot.h
> -header-y += bootparam.h
> -header-y += byteorder.h
> -header-y += debugreg.h
> -header-y += e820.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += hw_breakpoint.h
> -header-y += hyperv.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += ist.h
> -header-y += kvm.h
> -header-y += kvm_para.h
> -header-y += kvm_perf.h
> -header-y += ldt.h
> -header-y += mce.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += msr-index.h
> -header-y += msr.h
> -header-y += mtrr.h
> -header-y += param.h
> -header-y += perf_regs.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += posix_types_32.h
> -header-y += posix_types_64.h
> -header-y += posix_types_x32.h
> -header-y += prctl.h
> -header-y += processor-flags.h
> -header-y += ptrace-abi.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += sigcontext32.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += svm.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> -header-y += vm86.h
> -header-y += vmx.h
> -header-y += vsyscall.h
> diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild
> index 56aad54e7fb7..b15bf6bc0e94 100644
> --- a/arch/xtensa/include/uapi/asm/Kbuild
> +++ b/arch/xtensa/include/uapi/asm/Kbuild
> @@ -1,25 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += byteorder.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/include/Kbuild b/include/Kbuild
> deleted file mode 100644
> index bab1145bc7a7..000000000000
> --- a/include/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# Top-level Makefile calls into asm-$(ARCH)
> -# List only non-arch directories below
> diff --git a/include/asm-generic/Kbuild.asm b/include/asm-generic/Kbuild.asm
> deleted file mode 100644
> index d2ee86b4c091..000000000000
> --- a/include/asm-generic/Kbuild.asm
> +++ /dev/null
> @@ -1 +0,0 @@
> -include include/uapi/asm-generic/Kbuild.asm
> diff --git a/include/scsi/fc/Kbuild b/include/scsi/fc/Kbuild
> deleted file mode 100644
> index e69de29bb2d1..000000000000
> diff --git a/include/uapi/Kbuild b/include/uapi/Kbuild
> deleted file mode 100644
> index 245aa6e05e6a..000000000000
> --- a/include/uapi/Kbuild
> +++ /dev/null
> @@ -1,15 +0,0 @@
> -# UAPI Header export list
> -# Top-level Makefile calls into asm-$(ARCH)
> -# List only non-arch directories below
> -
> -
> -header-y += asm-generic/
> -header-y += linux/
> -header-y += sound/
> -header-y += mtd/
> -header-y += rdma/
> -header-y += video/
> -header-y += drm/
> -header-y += xen/
> -header-y += scsi/
> -header-y += misc/
> diff --git a/include/uapi/asm-generic/Kbuild b/include/uapi/asm-generic/Kbuild
> deleted file mode 100644
> index b73de7bb7a62..000000000000
> --- a/include/uapi/asm-generic/Kbuild
> +++ /dev/null
> @@ -1,36 +0,0 @@
> -# UAPI Header export list
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += errno-base.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += int-l64.h
> -header-y += int-ll64.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman-common.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += shmparam.h
> -header-y += siginfo.h
> -header-y += signal-defs.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> diff --git a/include/uapi/asm-generic/Kbuild.asm b/include/uapi/asm-generic/Kbuild.asm
> index fcd50b759217..c13805d5a2a0 100644
> --- a/include/uapi/asm-generic/Kbuild.asm
> +++ b/include/uapi/asm-generic/Kbuild.asm
> @@ -8,38 +8,38 @@ opt-header += a.out.h
>  #
>  # Headers that are mandatory in usr/include/asm/
>  #
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> +generic-y += auxvec.h
> +generic-y += bitsperlong.h
> +generic-y += byteorder.h
> +generic-y += errno.h
> +generic-y += fcntl.h
> +generic-y += ioctl.h
> +generic-y += ioctls.h
> +generic-y += ipcbuf.h
> +generic-y += mman.h
> +generic-y += msgbuf.h
> +generic-y += param.h
> +generic-y += poll.h
> +generic-y += posix_types.h
> +generic-y += ptrace.h
> +generic-y += resource.h
> +generic-y += sembuf.h
> +generic-y += setup.h
> +generic-y += shmbuf.h
> +generic-y += sigcontext.h
> +generic-y += siginfo.h
> +generic-y += signal.h
> +generic-y += socket.h
> +generic-y += sockios.h
> +generic-y += stat.h
> +generic-y += statfs.h
> +generic-y += swab.h
> +generic-y += termbits.h
> +generic-y += termios.h
> +generic-y += types.h
> +generic-y += unistd.h
>  
> -header-y += $(foreach hdr,$(opt-header), \
> +generic-y += $(foreach hdr,$(opt-header), \
>  	      $(if \
>  		$(wildcard \
>  			$(srctree)/arch/$(SRCARCH)/include/uapi/asm/$(hdr) \
> diff --git a/include/uapi/drm/Kbuild b/include/uapi/drm/Kbuild
> deleted file mode 100644
> index 9355dd8eff3b..000000000000
> --- a/include/uapi/drm/Kbuild
> +++ /dev/null
> @@ -1,22 +0,0 @@
> -# UAPI Header export list
> -header-y += drm.h
> -header-y += drm_fourcc.h
> -header-y += drm_mode.h
> -header-y += drm_sarea.h
> -header-y += amdgpu_drm.h
> -header-y += exynos_drm.h
> -header-y += i810_drm.h
> -header-y += i915_drm.h
> -header-y += mga_drm.h
> -header-y += nouveau_drm.h
> -header-y += qxl_drm.h
> -header-y += r128_drm.h
> -header-y += radeon_drm.h
> -header-y += savage_drm.h
> -header-y += sis_drm.h
> -header-y += tegra_drm.h
> -header-y += via_drm.h
> -header-y += vmwgfx_drm.h
> -header-y += msm_drm.h
> -header-y += vc4_drm.h
> -header-y += virtgpu_drm.h
> diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
> deleted file mode 100644
> index a8b93e685239..000000000000
> --- a/include/uapi/linux/Kbuild
> +++ /dev/null
> @@ -1,482 +0,0 @@
> -# UAPI Header export list
> -header-y += android/
> -header-y += byteorder/
> -header-y += can/
> -header-y += caif/
> -header-y += dvb/
> -header-y += hdlc/
> -header-y += hsi/
> -header-y += iio/
> -header-y += isdn/
> -header-y += mmc/
> -header-y += nfsd/
> -header-y += raid/
> -header-y += spi/
> -header-y += sunrpc/
> -header-y += tc_act/
> -header-y += tc_ematch/
> -header-y += netfilter/
> -header-y += netfilter_arp/
> -header-y += netfilter_bridge/
> -header-y += netfilter_ipv4/
> -header-y += netfilter_ipv6/
> -header-y += usb/
> -header-y += wimax/
> -
> -genhdr-y += version.h
> -
> -ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/a.out.h \
> -		  $(srctree)/arch/$(SRCARCH)/include/asm/a.out.h),)
> -header-y += a.out.h
> -endif
> -
> -header-y += acct.h
> -header-y += adb.h
> -header-y += adfs_fs.h
> -header-y += affs_hardblocks.h
> -header-y += agpgart.h
> -header-y += aio_abi.h
> -header-y += am437x-vpfe.h
> -header-y += apm_bios.h
> -header-y += arcfb.h
> -header-y += atalk.h
> -header-y += atmapi.h
> -header-y += atmarp.h
> -header-y += atmbr2684.h
> -header-y += atmclip.h
> -header-y += atmdev.h
> -header-y += atm_eni.h
> -header-y += atm.h
> -header-y += atm_he.h
> -header-y += atm_idt77105.h
> -header-y += atmioc.h
> -header-y += atmlec.h
> -header-y += atmmpc.h
> -header-y += atm_nicstar.h
> -header-y += atmppp.h
> -header-y += atmsap.h
> -header-y += atmsvc.h
> -header-y += atm_tcp.h
> -header-y += atm_zatm.h
> -header-y += audit.h
> -header-y += auto_fs4.h
> -header-y += auto_fs.h
> -header-y += auxvec.h
> -header-y += ax25.h
> -header-y += b1lli.h
> -header-y += baycom.h
> -header-y += bcm933xx_hcs.h
> -header-y += bfs_fs.h
> -header-y += binfmts.h
> -header-y += blkpg.h
> -header-y += blktrace_api.h
> -header-y += blkzoned.h
> -header-y += bpf_common.h
> -header-y += bpf_perf_event.h
> -header-y += bpf.h
> -header-y += bpqether.h
> -header-y += bsg.h
> -header-y += bt-bmc.h
> -header-y += btrfs.h
> -header-y += can.h
> -header-y += capability.h
> -header-y += capi.h
> -header-y += cciss_defs.h
> -header-y += cciss_ioctl.h
> -header-y += cdrom.h
> -header-y += cec.h
> -header-y += cec-funcs.h
> -header-y += cgroupstats.h
> -header-y += chio.h
> -header-y += cm4000_cs.h
> -header-y += cn_proc.h
> -header-y += coda.h
> -header-y += coda_psdev.h
> -header-y += coff.h
> -header-y += connector.h
> -header-y += const.h
> -header-y += cramfs_fs.h
> -header-y += cuda.h
> -header-y += cyclades.h
> -header-y += cycx_cfm.h
> -header-y += dcbnl.h
> -header-y += dccp.h
> -header-y += devlink.h
> -header-y += dlmconstants.h
> -header-y += dlm_device.h
> -header-y += dlm.h
> -header-y += dlm_netlink.h
> -header-y += dlm_plock.h
> -header-y += dm-ioctl.h
> -header-y += dm-log-userspace.h
> -header-y += dn.h
> -header-y += dqblk_xfs.h
> -header-y += edd.h
> -header-y += efs_fs_sb.h
> -header-y += elfcore.h
> -header-y += elf-em.h
> -header-y += elf-fdpic.h
> -header-y += elf.h
> -header-y += errno.h
> -header-y += errqueue.h
> -header-y += ethtool.h
> -header-y += eventpoll.h
> -header-y += fadvise.h
> -header-y += falloc.h
> -header-y += fanotify.h
> -header-y += fb.h
> -header-y += fcntl.h
> -header-y += fd.h
> -header-y += fdreg.h
> -header-y += fib_rules.h
> -header-y += fiemap.h
> -header-y += filter.h
> -header-y += firewire-cdev.h
> -header-y += firewire-constants.h
> -header-y += flat.h
> -header-y += fou.h
> -header-y += fs.h
> -header-y += fsl_hypervisor.h
> -header-y += fuse.h
> -header-y += futex.h
> -header-y += gameport.h
> -header-y += genetlink.h
> -header-y += gen_stats.h
> -header-y += gfs2_ondisk.h
> -header-y += gigaset_dev.h
> -header-y += gpio.h
> -header-y += gsmmux.h
> -header-y += gtp.h
> -header-y += hdlcdrv.h
> -header-y += hdlc.h
> -header-y += hdreg.h
> -header-y += hiddev.h
> -header-y += hid.h
> -header-y += hidraw.h
> -header-y += hpet.h
> -header-y += hsr_netlink.h
> -header-y += hyperv.h
> -header-y += hysdn_if.h
> -header-y += i2c-dev.h
> -header-y += i2c.h
> -header-y += i2o-dev.h
> -header-y += i8k.h
> -header-y += icmp.h
> -header-y += icmpv6.h
> -header-y += if_addr.h
> -header-y += if_addrlabel.h
> -header-y += if_alg.h
> -header-y += if_arcnet.h
> -header-y += if_arp.h
> -header-y += if_bonding.h
> -header-y += if_bridge.h
> -header-y += if_cablemodem.h
> -header-y += if_eql.h
> -header-y += if_ether.h
> -header-y += if_fc.h
> -header-y += if_fddi.h
> -header-y += if_frad.h
> -header-y += if.h
> -header-y += if_hippi.h
> -header-y += if_infiniband.h
> -header-y += if_link.h
> -header-y += if_ltalk.h
> -header-y += if_macsec.h
> -header-y += if_packet.h
> -header-y += if_phonet.h
> -header-y += if_plip.h
> -header-y += if_ppp.h
> -header-y += if_pppol2tp.h
> -header-y += if_pppox.h
> -header-y += if_slip.h
> -header-y += if_team.h
> -header-y += if_tun.h
> -header-y += if_tunnel.h
> -header-y += if_vlan.h
> -header-y += if_x25.h
> -header-y += igmp.h
> -header-y += ila.h
> -header-y += in6.h
> -header-y += inet_diag.h
> -header-y += in.h
> -header-y += inotify.h
> -header-y += input.h
> -header-y += input-event-codes.h
> -header-y += in_route.h
> -header-y += ioctl.h
> -header-y += ip6_tunnel.h
> -header-y += ipc.h
> -header-y += ip.h
> -header-y += ipmi.h
> -header-y += ipmi_msgdefs.h
> -header-y += ipsec.h
> -header-y += ipv6.h
> -header-y += ipv6_route.h
> -header-y += ip_vs.h
> -header-y += ipx.h
> -header-y += irda.h
> -header-y += irqnr.h
> -header-y += isdn_divertif.h
> -header-y += isdn.h
> -header-y += isdnif.h
> -header-y += isdn_ppp.h
> -header-y += iso_fs.h
> -header-y += ivtvfb.h
> -header-y += ivtv.h
> -header-y += ixjuser.h
> -header-y += jffs2.h
> -header-y += joystick.h
> -header-y += kcmp.h
> -header-y += kdev_t.h
> -header-y += kd.h
> -header-y += kernelcapi.h
> -header-y += kernel.h
> -header-y += kernel-page-flags.h
> -header-y += kexec.h
> -header-y += keyboard.h
> -header-y += keyctl.h
> -
> -ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/kvm.h \
> -		  $(srctree)/arch/$(SRCARCH)/include/asm/kvm.h),)
> -header-y += kvm.h
> -endif
> -
> -
> -ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/kvm_para.h \
> -		  $(srctree)/arch/$(SRCARCH)/include/asm/kvm_para.h),)
> -header-y += kvm_para.h
> -endif
> -
> -header-y += hw_breakpoint.h
> -header-y += l2tp.h
> -header-y += libc-compat.h
> -header-y += lirc.h
> -header-y += limits.h
> -header-y += llc.h
> -header-y += loop.h
> -header-y += lp.h
> -header-y += lwtunnel.h
> -header-y += magic.h
> -header-y += major.h
> -header-y += map_to_7segment.h
> -header-y += matroxfb.h
> -header-y += mdio.h
> -header-y += media.h
> -header-y += media-bus-format.h
> -header-y += mei.h
> -header-y += membarrier.h
> -header-y += memfd.h
> -header-y += mempolicy.h
> -header-y += meye.h
> -header-y += mic_common.h
> -header-y += mic_ioctl.h
> -header-y += mii.h
> -header-y += minix_fs.h
> -header-y += mman.h
> -header-y += mmtimer.h
> -header-y += mpls.h
> -header-y += mpls_iptunnel.h
> -header-y += mqueue.h
> -header-y += mroute6.h
> -header-y += mroute.h
> -header-y += msdos_fs.h
> -header-y += msg.h
> -header-y += mtio.h
> -header-y += nbd.h
> -header-y += ncp_fs.h
> -header-y += ncp.h
> -header-y += ncp_mount.h
> -header-y += ncp_no.h
> -header-y += ndctl.h
> -header-y += neighbour.h
> -header-y += netconf.h
> -header-y += netdevice.h
> -header-y += net_dropmon.h
> -header-y += netfilter_arp.h
> -header-y += netfilter_bridge.h
> -header-y += netfilter_decnet.h
> -header-y += netfilter.h
> -header-y += netfilter_ipv4.h
> -header-y += netfilter_ipv6.h
> -header-y += net.h
> -header-y += netlink_diag.h
> -header-y += netlink.h
> -header-y += netrom.h
> -header-y += net_namespace.h
> -header-y += net_tstamp.h
> -header-y += nfc.h
> -header-y += nfs2.h
> -header-y += nfs3.h
> -header-y += nfs4.h
> -header-y += nfs4_mount.h
> -header-y += nfsacl.h
> -header-y += nfs_fs.h
> -header-y += nfs.h
> -header-y += nfs_idmap.h
> -header-y += nfs_mount.h
> -header-y += nl80211.h
> -header-y += n_r3964.h
> -header-y += nubus.h
> -header-y += nvme_ioctl.h
> -header-y += nvram.h
> -header-y += omap3isp.h
> -header-y += omapfb.h
> -header-y += oom.h
> -header-y += openvswitch.h
> -header-y += packet_diag.h
> -header-y += param.h
> -header-y += parport.h
> -header-y += patchkey.h
> -header-y += pci.h
> -header-y += pci_regs.h
> -header-y += perf_event.h
> -header-y += personality.h
> -header-y += pfkeyv2.h
> -header-y += pg.h
> -header-y += phantom.h
> -header-y += phonet.h
> -header-y += pktcdvd.h
> -header-y += pkt_cls.h
> -header-y += pkt_sched.h
> -header-y += pmu.h
> -header-y += poll.h
> -header-y += posix_acl.h
> -header-y += posix_acl_xattr.h
> -header-y += posix_types.h
> -header-y += ppdev.h
> -header-y += ppp-comp.h
> -header-y += ppp_defs.h
> -header-y += ppp-ioctl.h
> -header-y += pps.h
> -header-y += prctl.h
> -header-y += psci.h
> -header-y += ptp_clock.h
> -header-y += ptrace.h
> -header-y += qnx4_fs.h
> -header-y += qnxtypes.h
> -header-y += quota.h
> -header-y += radeonfb.h
> -header-y += random.h
> -header-y += raw.h
> -header-y += rds.h
> -header-y += reboot.h
> -header-y += reiserfs_fs.h
> -header-y += reiserfs_xattr.h
> -header-y += resource.h
> -header-y += rfkill.h
> -header-y += rio_cm_cdev.h
> -header-y += rio_mport_cdev.h
> -header-y += romfs_fs.h
> -header-y += rose.h
> -header-y += route.h
> -header-y += rtc.h
> -header-y += rtnetlink.h
> -header-y += scc.h
> -header-y += sched.h
> -header-y += scif_ioctl.h
> -header-y += screen_info.h
> -header-y += sctp.h
> -header-y += sdla.h
> -header-y += seccomp.h
> -header-y += securebits.h
> -header-y += selinux_netlink.h
> -header-y += sem.h
> -header-y += serial_core.h
> -header-y += serial.h
> -header-y += serial_reg.h
> -header-y += serio.h
> -header-y += shm.h
> -header-y += signalfd.h
> -header-y += signal.h
> -header-y += smiapp.h
> -header-y += snmp.h
> -header-y += sock_diag.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += sonet.h
> -header-y += sonypi.h
> -header-y += soundcard.h
> -header-y += sound.h
> -header-y += stat.h
> -header-y += stddef.h
> -header-y += string.h
> -header-y += suspend_ioctls.h
> -header-y += swab.h
> -header-y += synclink.h
> -header-y += sync_file.h
> -header-y += sysctl.h
> -header-y += sysinfo.h
> -header-y += target_core_user.h
> -header-y += taskstats.h
> -header-y += tcp.h
> -header-y += tcp_metrics.h
> -header-y += telephony.h
> -header-y += termios.h
> -header-y += thermal.h
> -header-y += time.h
> -header-y += times.h
> -header-y += timex.h
> -header-y += tiocl.h
> -header-y += tipc_config.h
> -header-y += tipc_netlink.h
> -header-y += tipc.h
> -header-y += toshiba.h
> -header-y += tty_flags.h
> -header-y += tty.h
> -header-y += types.h
> -header-y += udf_fs_i.h
> -header-y += udp.h
> -header-y += uhid.h
> -header-y += uinput.h
> -header-y += uio.h
> -header-y += uleds.h
> -header-y += ultrasound.h
> -header-y += un.h
> -header-y += unistd.h
> -header-y += unix_diag.h
> -header-y += usbdevice_fs.h
> -header-y += usbip.h
> -header-y += utime.h
> -header-y += utsname.h
> -header-y += uuid.h
> -header-y += uvcvideo.h
> -header-y += v4l2-common.h
> -header-y += v4l2-controls.h
> -header-y += v4l2-dv-timings.h
> -header-y += v4l2-mediabus.h
> -header-y += v4l2-subdev.h
> -header-y += veth.h
> -header-y += vfio.h
> -header-y += vhost.h
> -header-y += videodev2.h
> -header-y += virtio_9p.h
> -header-y += virtio_balloon.h
> -header-y += virtio_blk.h
> -header-y += virtio_config.h
> -header-y += virtio_console.h
> -header-y += virtio_gpu.h
> -header-y += virtio_ids.h
> -header-y += virtio_input.h
> -header-y += virtio_net.h
> -header-y += virtio_pci.h
> -header-y += virtio_ring.h
> -header-y += virtio_rng.h
> -header-y += virtio_scsi.h
> -header-y += virtio_types.h
> -header-y += virtio_vsock.h
> -header-y += virtio_crypto.h
> -header-y += vm_sockets.h
> -header-y += vt.h
> -header-y += vtpm_proxy.h
> -header-y += wait.h
> -header-y += wanrouter.h
> -header-y += watchdog.h
> -header-y += wimax.h
> -header-y += wireless.h
> -header-y += x25.h
> -header-y += xattr.h
> -header-y += xfrm.h
> -header-y += xilinx-v4l2-controls.h
> -header-y += zorro.h
> -header-y += zorro_ids.h
> -header-y += userfaultfd.h
> diff --git a/include/uapi/linux/android/Kbuild b/include/uapi/linux/android/Kbuild
> deleted file mode 100644
> index ca011eec252a..000000000000
> --- a/include/uapi/linux/android/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += binder.h
> diff --git a/include/uapi/linux/byteorder/Kbuild b/include/uapi/linux/byteorder/Kbuild
> deleted file mode 100644
> index 619225b9ff2e..000000000000
> --- a/include/uapi/linux/byteorder/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += big_endian.h
> -header-y += little_endian.h
> diff --git a/include/uapi/linux/caif/Kbuild b/include/uapi/linux/caif/Kbuild
> deleted file mode 100644
> index 43396612d3a3..000000000000
> --- a/include/uapi/linux/caif/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += caif_socket.h
> -header-y += if_caif.h
> diff --git a/include/uapi/linux/can/Kbuild b/include/uapi/linux/can/Kbuild
> deleted file mode 100644
> index 21c91bf25a29..000000000000
> --- a/include/uapi/linux/can/Kbuild
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -# UAPI Header export list
> -header-y += bcm.h
> -header-y += error.h
> -header-y += gw.h
> -header-y += netlink.h
> -header-y += raw.h
> diff --git a/include/uapi/linux/dvb/Kbuild b/include/uapi/linux/dvb/Kbuild
> deleted file mode 100644
> index d40942cfc627..000000000000
> --- a/include/uapi/linux/dvb/Kbuild
> +++ /dev/null
> @@ -1,9 +0,0 @@
> -# UAPI Header export list
> -header-y += audio.h
> -header-y += ca.h
> -header-y += dmx.h
> -header-y += frontend.h
> -header-y += net.h
> -header-y += osd.h
> -header-y += version.h
> -header-y += video.h
> diff --git a/include/uapi/linux/hdlc/Kbuild b/include/uapi/linux/hdlc/Kbuild
> deleted file mode 100644
> index 8c1d2cb75e33..000000000000
> --- a/include/uapi/linux/hdlc/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += ioctl.h
> diff --git a/include/uapi/linux/hsi/Kbuild b/include/uapi/linux/hsi/Kbuild
> deleted file mode 100644
> index a16a00544258..000000000000
> --- a/include/uapi/linux/hsi/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += hsi_char.h cs-protocol.h
> diff --git a/include/uapi/linux/iio/Kbuild b/include/uapi/linux/iio/Kbuild
> deleted file mode 100644
> index 86f76d84c44f..000000000000
> --- a/include/uapi/linux/iio/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += events.h
> -header-y += types.h
> diff --git a/include/uapi/linux/isdn/Kbuild b/include/uapi/linux/isdn/Kbuild
> deleted file mode 100644
> index 89e52850bf29..000000000000
> --- a/include/uapi/linux/isdn/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += capicmd.h
> diff --git a/include/uapi/linux/mmc/Kbuild b/include/uapi/linux/mmc/Kbuild
> deleted file mode 100644
> index 8c1d2cb75e33..000000000000
> --- a/include/uapi/linux/mmc/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += ioctl.h
> diff --git a/include/uapi/linux/netfilter/Kbuild b/include/uapi/linux/netfilter/Kbuild
> deleted file mode 100644
> index 03f194aeadc5..000000000000
> --- a/include/uapi/linux/netfilter/Kbuild
> +++ /dev/null
> @@ -1,89 +0,0 @@
> -# UAPI Header export list
> -header-y += ipset/
> -header-y += nf_conntrack_common.h
> -header-y += nf_conntrack_ftp.h
> -header-y += nf_conntrack_sctp.h
> -header-y += nf_conntrack_tcp.h
> -header-y += nf_conntrack_tuple_common.h
> -header-y += nf_log.h
> -header-y += nf_tables.h
> -header-y += nf_tables_compat.h
> -header-y += nf_nat.h
> -header-y += nfnetlink.h
> -header-y += nfnetlink_acct.h
> -header-y += nfnetlink_compat.h
> -header-y += nfnetlink_conntrack.h
> -header-y += nfnetlink_cthelper.h
> -header-y += nfnetlink_cttimeout.h
> -header-y += nfnetlink_log.h
> -header-y += nfnetlink_queue.h
> -header-y += x_tables.h
> -header-y += xt_AUDIT.h
> -header-y += xt_CHECKSUM.h
> -header-y += xt_CLASSIFY.h
> -header-y += xt_CONNMARK.h
> -header-y += xt_CONNSECMARK.h
> -header-y += xt_CT.h
> -header-y += xt_DSCP.h
> -header-y += xt_HMARK.h
> -header-y += xt_IDLETIMER.h
> -header-y += xt_LED.h
> -header-y += xt_LOG.h
> -header-y += xt_MARK.h
> -header-y += xt_NFLOG.h
> -header-y += xt_NFQUEUE.h
> -header-y += xt_RATEEST.h
> -header-y += xt_SECMARK.h
> -header-y += xt_SYNPROXY.h
> -header-y += xt_TCPMSS.h
> -header-y += xt_TCPOPTSTRIP.h
> -header-y += xt_TEE.h
> -header-y += xt_TPROXY.h
> -header-y += xt_addrtype.h
> -header-y += xt_bpf.h
> -header-y += xt_cgroup.h
> -header-y += xt_cluster.h
> -header-y += xt_comment.h
> -header-y += xt_connbytes.h
> -header-y += xt_connlabel.h
> -header-y += xt_connlimit.h
> -header-y += xt_connmark.h
> -header-y += xt_conntrack.h
> -header-y += xt_cpu.h
> -header-y += xt_dccp.h
> -header-y += xt_devgroup.h
> -header-y += xt_dscp.h
> -header-y += xt_ecn.h
> -header-y += xt_esp.h
> -header-y += xt_hashlimit.h
> -header-y += xt_helper.h
> -header-y += xt_ipcomp.h
> -header-y += xt_iprange.h
> -header-y += xt_ipvs.h
> -header-y += xt_l2tp.h
> -header-y += xt_length.h
> -header-y += xt_limit.h
> -header-y += xt_mac.h
> -header-y += xt_mark.h
> -header-y += xt_multiport.h
> -header-y += xt_nfacct.h
> -header-y += xt_osf.h
> -header-y += xt_owner.h
> -header-y += xt_physdev.h
> -header-y += xt_pkttype.h
> -header-y += xt_policy.h
> -header-y += xt_quota.h
> -header-y += xt_rateest.h
> -header-y += xt_realm.h
> -header-y += xt_recent.h
> -header-y += xt_rpfilter.h
> -header-y += xt_sctp.h
> -header-y += xt_set.h
> -header-y += xt_socket.h
> -header-y += xt_state.h
> -header-y += xt_statistic.h
> -header-y += xt_string.h
> -header-y += xt_tcpmss.h
> -header-y += xt_tcpudp.h
> -header-y += xt_time.h
> -header-y += xt_u32.h
> diff --git a/include/uapi/linux/netfilter/ipset/Kbuild b/include/uapi/linux/netfilter/ipset/Kbuild
> deleted file mode 100644
> index d2680423d9ab..000000000000
> --- a/include/uapi/linux/netfilter/ipset/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += ip_set.h
> -header-y += ip_set_bitmap.h
> -header-y += ip_set_hash.h
> -header-y += ip_set_list.h
> diff --git a/include/uapi/linux/netfilter_arp/Kbuild b/include/uapi/linux/netfilter_arp/Kbuild
> deleted file mode 100644
> index 62d5637cc0ac..000000000000
> --- a/include/uapi/linux/netfilter_arp/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += arp_tables.h
> -header-y += arpt_mangle.h
> diff --git a/include/uapi/linux/netfilter_bridge/Kbuild b/include/uapi/linux/netfilter_bridge/Kbuild
> deleted file mode 100644
> index 0fbad8ef96de..000000000000
> --- a/include/uapi/linux/netfilter_bridge/Kbuild
> +++ /dev/null
> @@ -1,18 +0,0 @@
> -# UAPI Header export list
> -header-y += ebt_802_3.h
> -header-y += ebt_among.h
> -header-y += ebt_arp.h
> -header-y += ebt_arpreply.h
> -header-y += ebt_ip.h
> -header-y += ebt_ip6.h
> -header-y += ebt_limit.h
> -header-y += ebt_log.h
> -header-y += ebt_mark_m.h
> -header-y += ebt_mark_t.h
> -header-y += ebt_nat.h
> -header-y += ebt_nflog.h
> -header-y += ebt_pkttype.h
> -header-y += ebt_redirect.h
> -header-y += ebt_stp.h
> -header-y += ebt_vlan.h
> -header-y += ebtables.h
> diff --git a/include/uapi/linux/netfilter_ipv4/Kbuild b/include/uapi/linux/netfilter_ipv4/Kbuild
> deleted file mode 100644
> index ecb291df390e..000000000000
> --- a/include/uapi/linux/netfilter_ipv4/Kbuild
> +++ /dev/null
> @@ -1,10 +0,0 @@
> -# UAPI Header export list
> -header-y += ip_tables.h
> -header-y += ipt_CLUSTERIP.h
> -header-y += ipt_ECN.h
> -header-y += ipt_LOG.h
> -header-y += ipt_REJECT.h
> -header-y += ipt_TTL.h
> -header-y += ipt_ah.h
> -header-y += ipt_ecn.h
> -header-y += ipt_ttl.h
> diff --git a/include/uapi/linux/netfilter_ipv6/Kbuild b/include/uapi/linux/netfilter_ipv6/Kbuild
> deleted file mode 100644
> index 75a668ca2353..000000000000
> --- a/include/uapi/linux/netfilter_ipv6/Kbuild
> +++ /dev/null
> @@ -1,13 +0,0 @@
> -# UAPI Header export list
> -header-y += ip6_tables.h
> -header-y += ip6t_HL.h
> -header-y += ip6t_LOG.h
> -header-y += ip6t_NPT.h
> -header-y += ip6t_REJECT.h
> -header-y += ip6t_ah.h
> -header-y += ip6t_frag.h
> -header-y += ip6t_hl.h
> -header-y += ip6t_ipv6header.h
> -header-y += ip6t_mh.h
> -header-y += ip6t_opts.h
> -header-y += ip6t_rt.h
> diff --git a/include/uapi/linux/nfsd/Kbuild b/include/uapi/linux/nfsd/Kbuild
> deleted file mode 100644
> index c11bc404053c..000000000000
> --- a/include/uapi/linux/nfsd/Kbuild
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -# UAPI Header export list
> -header-y += cld.h
> -header-y += debug.h
> -header-y += export.h
> -header-y += nfsfh.h
> -header-y += stats.h
> diff --git a/include/uapi/linux/raid/Kbuild b/include/uapi/linux/raid/Kbuild
> deleted file mode 100644
> index e2c3d25405d7..000000000000
> --- a/include/uapi/linux/raid/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += md_p.h
> -header-y += md_u.h
> diff --git a/include/uapi/linux/spi/Kbuild b/include/uapi/linux/spi/Kbuild
> deleted file mode 100644
> index 0cc747eff165..000000000000
> --- a/include/uapi/linux/spi/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += spidev.h
> diff --git a/include/uapi/linux/sunrpc/Kbuild b/include/uapi/linux/sunrpc/Kbuild
> deleted file mode 100644
> index 8e02e47c20fb..000000000000
> --- a/include/uapi/linux/sunrpc/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += debug.h
> diff --git a/include/uapi/linux/tc_act/Kbuild b/include/uapi/linux/tc_act/Kbuild
> deleted file mode 100644
> index e3db7403296f..000000000000
> --- a/include/uapi/linux/tc_act/Kbuild
> +++ /dev/null
> @@ -1,15 +0,0 @@
> -# UAPI Header export list
> -header-y += tc_csum.h
> -header-y += tc_defact.h
> -header-y += tc_gact.h
> -header-y += tc_ipt.h
> -header-y += tc_mirred.h
> -header-y += tc_nat.h
> -header-y += tc_pedit.h
> -header-y += tc_skbedit.h
> -header-y += tc_vlan.h
> -header-y += tc_bpf.h
> -header-y += tc_connmark.h
> -header-y += tc_ife.h
> -header-y += tc_tunnel_key.h
> -header-y += tc_skbmod.h
> diff --git a/include/uapi/linux/tc_ematch/Kbuild b/include/uapi/linux/tc_ematch/Kbuild
> deleted file mode 100644
> index 53fca3925535..000000000000
> --- a/include/uapi/linux/tc_ematch/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += tc_em_cmp.h
> -header-y += tc_em_meta.h
> -header-y += tc_em_nbyte.h
> -header-y += tc_em_text.h
> diff --git a/include/uapi/linux/usb/Kbuild b/include/uapi/linux/usb/Kbuild
> deleted file mode 100644
> index 4cc4d6e7e523..000000000000
> --- a/include/uapi/linux/usb/Kbuild
> +++ /dev/null
> @@ -1,12 +0,0 @@
> -# UAPI Header export list
> -header-y += audio.h
> -header-y += cdc.h
> -header-y += cdc-wdm.h
> -header-y += ch11.h
> -header-y += ch9.h
> -header-y += functionfs.h
> -header-y += g_printer.h
> -header-y += gadgetfs.h
> -header-y += midi.h
> -header-y += tmc.h
> -header-y += video.h
> diff --git a/include/uapi/linux/wimax/Kbuild b/include/uapi/linux/wimax/Kbuild
> deleted file mode 100644
> index 1c97be49971f..000000000000
> --- a/include/uapi/linux/wimax/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += i2400m.h
> diff --git a/include/uapi/misc/Kbuild b/include/uapi/misc/Kbuild
> deleted file mode 100644
> index e96cae7d58c9..000000000000
> --- a/include/uapi/misc/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# misc Header export list
> -header-y += cxl.h
> diff --git a/include/uapi/mtd/Kbuild b/include/uapi/mtd/Kbuild
> deleted file mode 100644
> index 5a691e10cd0e..000000000000
> --- a/include/uapi/mtd/Kbuild
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -# UAPI Header export list
> -header-y += inftl-user.h
> -header-y += mtd-abi.h
> -header-y += mtd-user.h
> -header-y += nftl-user.h
> -header-y += ubi-user.h
> diff --git a/include/uapi/rdma/Kbuild b/include/uapi/rdma/Kbuild
> deleted file mode 100644
> index 82bdf5626859..000000000000
> --- a/include/uapi/rdma/Kbuild
> +++ /dev/null
> @@ -1,18 +0,0 @@
> -# UAPI Header export list
> -header-y += ib_user_cm.h
> -header-y += ib_user_mad.h
> -header-y += ib_user_sa.h
> -header-y += ib_user_verbs.h
> -header-y += rdma_netlink.h
> -header-y += rdma_user_cm.h
> -header-y += hfi/
> -header-y += rdma_user_rxe.h
> -header-y += cxgb3-abi.h
> -header-y += cxgb4-abi.h
> -header-y += mlx4-abi.h
> -header-y += mlx5-abi.h
> -header-y += mthca-abi.h
> -header-y += nes-abi.h
> -header-y += ocrdma-abi.h
> -header-y += hns-abi.h
> -header-y += vmw_pvrdma-abi.h
> diff --git a/include/uapi/rdma/hfi/Kbuild b/include/uapi/rdma/hfi/Kbuild
> deleted file mode 100644
> index ef23c294fc71..000000000000
> --- a/include/uapi/rdma/hfi/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += hfi1_user.h
> diff --git a/include/uapi/scsi/Kbuild b/include/uapi/scsi/Kbuild
> deleted file mode 100644
> index d791e0ad509d..000000000000
> --- a/include/uapi/scsi/Kbuild
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -# UAPI Header export list
> -header-y += fc/
> -header-y += scsi_bsg_fc.h
> -header-y += scsi_netlink.h
> -header-y += scsi_netlink_fc.h
> -header-y += cxlflash_ioctl.h
> diff --git a/include/uapi/scsi/fc/Kbuild b/include/uapi/scsi/fc/Kbuild
> deleted file mode 100644
> index 5ead9fac265c..000000000000
> --- a/include/uapi/scsi/fc/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += fc_els.h
> -header-y += fc_fs.h
> -header-y += fc_gs.h
> -header-y += fc_ns.h
> diff --git a/include/uapi/sound/Kbuild b/include/uapi/sound/Kbuild
> deleted file mode 100644
> index 9578d8bdbf31..000000000000
> --- a/include/uapi/sound/Kbuild
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -# UAPI Header export list
> -header-y += asequencer.h
> -header-y += asoc.h
> -header-y += asound.h
> -header-y += asound_fm.h
> -header-y += compress_offload.h
> -header-y += compress_params.h
> -header-y += emu10k1.h
> -header-y += firewire.h
> -header-y += hdsp.h
> -header-y += hdspm.h
> -header-y += sb16_csp.h
> -header-y += sfnt_info.h
> -header-y += tlv.h
> -header-y += usb_stream.h
> -header-y += snd_sst_tokens.h
> diff --git a/include/uapi/video/Kbuild b/include/uapi/video/Kbuild
> deleted file mode 100644
> index ac7203bb32cc..000000000000
> --- a/include/uapi/video/Kbuild
> +++ /dev/null
> @@ -1,4 +0,0 @@
> -# UAPI Header export list
> -header-y += edid.h
> -header-y += sisfb.h
> -header-y += uvesafb.h
> diff --git a/include/uapi/xen/Kbuild b/include/uapi/xen/Kbuild
> deleted file mode 100644
> index 5c459628e8c7..000000000000
> --- a/include/uapi/xen/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += evtchn.h
> -header-y += gntalloc.h
> -header-y += gntdev.h
> -header-y += privcmd.h
> diff --git a/include/video/Kbuild b/include/video/Kbuild
> deleted file mode 100644
> index e69de29bb2d1..000000000000
> diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
> index 876b42cfede4..bb93f8466a35 100644
> --- a/scripts/Makefile.headersinst
> +++ b/scripts/Makefile.headersinst
> @@ -1,17 +1,18 @@
>  # ==========================================================================
>  # Installing headers
>  #
> -# header-y  - list files to be installed. They are preprocessed
> -#             to remove __KERNEL__ section of the file
> -# genhdr-y  - Same as header-y but in a generated/ directory
> +# All headers under include/uapi, include/generated/uapi,
> +# arch/<arch>/include/uapi/asm and /include/generated/uapi/asm are exported.
> +# They are preprocessed to remove __KERNEL__ section of the file.
>  #
>  # ==========================================================================
>  
>  # generated header directory
>  gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
>  
> +# Kbuild file is optional
>  kbuild-file := $(srctree)/$(obj)/Kbuild
> -include $(kbuild-file)
> +-include $(kbuild-file)
>  
>  # called may set destination dir (when installing to asm/)
>  _dst := $(if $(dst),$(dst),$(obj))
> @@ -25,9 +26,12 @@ include scripts/Kbuild.include
>  
>  installdir    := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
>  
> -header-y      := $(sort $(header-y))
> -subdirs       := $(patsubst %/,%,$(filter %/, $(header-y)))
> -header-y      := $(filter-out %/, $(header-y))
> +subdirs       := $(patsubst $(srctree)/$(obj)/%/.,%,$(wildcard $(srctree)/$(obj)/*/.))
> +subdirs       += $(subdir-y)
> +header-files  := $(notdir $(wildcard $(srctree)/$(obj)/*.h))
> +header-files  += $(notdir $(wildcard $(srctree)/$(obj)/*.agh))
> +genhdr-files  := $(notdir $(wildcard $(srctree)/$(gen)/*.h))
> +genhdr-files  := $(filter-out $(header-files), $(genhdr-files))
>  
>  # files used to track state of install/check
>  install-file  := $(installdir)/.install
> @@ -35,26 +39,17 @@ check-file    := $(installdir)/.check
>  
>  # generic-y list all files an architecture uses from asm-generic
>  # Use this to build a list of headers which require a wrapper
> -wrapper-files := $(filter $(header-y), $(generic-y))
> +generic-files := $(notdir $(wildcard $(srctree)/include/uapi/asm-generic/*.h))
> +wrapper-files := $(filter $(generic-files), $(generic-y))
> +wrapper-files := $(filter-out $(header-files), $(wrapper-files))
>  
>  srcdir        := $(srctree)/$(obj)
>  gendir        := $(objtree)/$(gen)
>  
>  # all headers files for this dir
> -header-y      := $(filter-out $(generic-y), $(header-y))
> -all-files     := $(header-y) $(genhdr-y) $(wrapper-files)
> +all-files     := $(header-files) $(genhdr-files) $(wrapper-files)
>  output-files  := $(addprefix $(installdir)/, $(all-files))
>  
> -# Check that all expected files exist
> -$(foreach hdr, $(header-y), \
> -  $(if $(wildcard $(srcdir)/$(hdr)),, \
> -       $(error Missing UAPI file $(srcdir)/$(hdr)) \
> -   ))
> -$(foreach hdr, $(genhdr-y), \
> -  $(if	$(wildcard $(gendir)/$(hdr)),, \
> -       $(error Missing generated UAPI file $(gendir)/$(hdr)) \
> -  ))
> -
>  # Work out what needs to be removed
>  oldheaders    := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
>  unwanted      := $(filter-out $(all-files),$(oldheaders))
> @@ -67,8 +62,8 @@ printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
>  quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
>                              file$(if $(word 2, $(all-files)),s))
>        cmd_install = \
> -        $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-y); \
> -        $(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-y); \
> +        $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-files); \
> +        $(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-files); \
>          for F in $(wrapper-files); do                                   \
>                  echo "\#include <asm-generic/$$F>" > $(installdir)/$$F;    \
>          done;                                                           \
> -- 
> 2.8.1
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-doc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
--
To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html


From - Thu Nov 08 21:39:27 2018
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Subject: Re: [PATCH v2 1/7] arm: put types.h in uapi
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Subject: Re: [PATCH v2 3/7] nios2: put setup.h in uapi
Date: Mon, 09 Jan 2017 12:33:46 +0100
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On Friday, January 6, 2017 10:43:55 AM CET Nicolas Dichtel wrote:

> diff --git a/arch/nios2/include/uapi/asm/setup.h b/arch/nios2/include/uapi/asm/setup.h
> new file mode 100644
> index 000000000000..8d8285997ba8
> --- /dev/null
> +++ b/arch/nios2/include/uapi/asm/setup.h
> @@ -0,0 +1,6 @@
> +#ifndef _UAPI_ASM_NIOS2_SETUP_H
> +#define _UAPI_ASM_NIOS2_SETUP_H
> +
> +#include <asm-generic/setup.h>
> +
> +#endif /* _UAPI_ASM_NIOS2_SETUP_H */
> 

This one is only a redirect to an asm-generic header, so it can be
removed completely and replaced with a line in the 
arch/nios2/include/uapi/asm/ file:

generic-y += setup.h

	Arnd
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Subject: Re: [PATCH v2 0/7] uapi: export all headers under uapi directories
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On Friday, January 6, 2017 10:43:52 AM CET Nicolas Dichtel wrote:
> Here is the v2 of this series. The first 5 patches are just cleanup: some
> exported headers were still under a non-uapi directory.

Since this is meant as a cleanup, I commented on this to point out a cleaner
way to do the same.

> The patch 6 was spotted by code review: there is no in-tree user of this
> functionality.
> The last patch remove the use of header-y. Now all files under an uapi
> directory are exported.

Very nice!

> asm is a bit special, most of architectures export asm/<arch>/include/uapi/asm
> only, but there is two exceptions:
>  - cris which exports arch/cris/include/uapi/arch-v[10|32];

This is interesting, though not your problem. Maybe someone who understands
cris better can comment on this: How is the decision made about which of
the arch/user.h headers gets used? I couldn't find that in the sources,
but it appears to be based on kernel compile-time settings, which is
wrong for user space header files that should be independent of the kernel
config.

>  - tile which exports arch/tile/include/uapi/arch.
> Because I don't know if the output of 'make headers_install_all' can be changed,
> I introduce subdir-y in Kbuild file. The headers_install_all target copies all
> asm/<arch>/include/uapi/asm to usr/include/asm-<arch> but
> arch/cris/include/uapi/arch-v[10|32] and arch/tile/include/uapi/arch are not
> prefixed (they are put asis in usr/include/). If it's acceptable to modify the
> output of 'make headers_install_all' to export asm headers in
> usr/include/asm-<arch>/asm, then I could remove this new subdir-y and exports
> everything under arch/<arch>/include/uapi/.

I don't know if anyone still uses "make headers_install_all", I suspect
distros these days all use "make headers_install", so it probably
doesn't matter much.

In case of cris, it should be easy enough to move all the contents of the
uapi/arch-*/*.h headers into the respective uapi/asm/*.h headers, they
only seem to be referenced from there.

For tile, I suspect that would not work as the arch/*.h headers are
apparently defined as interfaces for both user space and kernel.

> Note also that exported files for asm are a mix of files listed by:
>  - include/uapi/asm-generic/Kbuild.asm;
>  - arch/x86/include/uapi/asm/Kbuild;
>  - arch/x86/include/asm/Kbuild.
> This complicates a lot the processing (arch/x86/include/asm/Kbuild is also
> used by scripts/Makefile.asm-generic).
> 
> This series has been tested with a 'make headers_install' on x86 and a
> 'make headers_install_all'. I've checked the result of both commands.
> 
> This patch is built against linus tree. I don't know if it should be
> made against antoher tree.

The series should probably get merged through the kbuild tree, but testing
it on mainline is fine here.

	Arnd

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Subject: Re: [PATCH v2 1/7] arm: put types.h in uapi
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To: Arnd Bergmann <arnd@arndb.de>
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On Mon, Jan 09, 2017 at 12:33:02PM +0100, Arnd Bergmann wrote:
> On Friday, January 6, 2017 10:43:53 AM CET Nicolas Dichtel wrote:
> > 
> > diff --git a/arch/arm/include/asm/types.h b/arch/arm/include/asm/types.h
> > index a53cdb8f068c..c48fee3d7b3b 100644
> > --- a/arch/arm/include/asm/types.h
> > +++ b/arch/arm/include/asm/types.h
> > @@ -1,40 +1,6 @@
> >  #ifndef _ASM_TYPES_H
> >  #define _ASM_TYPES_H
> >  
> > -#include <asm-generic/int-ll64.h>
> ...
> > -#define __UINTPTR_TYPE__       unsigned long
> > -#endif
> > +#include <uapi/asm/types.h>
> >  
> >  #endif /* _ASM_TYPES_H */
> > 
> 
> Moving the file is correct as far as I can tell, but the extra
> #include is not necessary here, as the kernel will automatically
> search both arch/arm/include/ and arch/arm/include/uapi/.

Indeed, I'd like to see the include/asm file gone.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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Subject: Re: [PATCH v2 7/7] uapi: export all headers under uapi directories
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To: Nicolas Dichtel <nicolas.dichtel-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
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On Fri, Jan 06, 2017 at 10:43:59AM +0100, Nicolas Dichtel wrote:
> diff --git a/arch/arm/include/uapi/asm/Kbuild b/arch/arm/include/uapi/asm/Kbuild
> index 46a76cd6acb6..607f702c2d62 100644
> --- a/arch/arm/include/uapi/asm/Kbuild
> +++ b/arch/arm/include/uapi/asm/Kbuild
> @@ -1,23 +1,6 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> -header-y += auxvec.h
> -header-y += byteorder.h
> -header-y += fcntl.h
> -header-y += hwcap.h
> -header-y += ioctls.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += perf_regs.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += unistd.h
>  genhdr-y += unistd-common.h
>  genhdr-y += unistd-oabi.h
>  genhdr-y += unistd-eabi.h

Acked-by: Russell King <rmk+kernel-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org>

-- 
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Subject: Re: [PATCH v2 7/7] uapi: export all headers under uapi directories
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/1982>

On Fri, Jan 06, 2017 at 10:43:59AM +0100, Nicolas Dichtel wrote:
> Regularly, when a new header is created in include/uapi/, the developer
> forgets to add it in the corresponding Kbuild file. This error is usually
> detected after the release is out.
> 
> In fact, all headers under uapi directories should be exported, thus it's
> useless to have an exhaustive list.
> 
> After this patch, the following files, which were not exported, are now
> exported (with make headers_install_all):

... snip ...

> linux/genwqe/.install
> linux/genwqe/..install.cmd
> linux/cifs/.install
> linux/cifs/..install.cmd

I'm pretty sure these should not be exported!

From - Thu Nov 08 21:39:28 2018
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From: Bart Van Assche <bart.vanassche@sandisk.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.drivers.rdma,gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.ports.sh.devel,gmane.linux.kernel.arc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc
Subject: [PATCH 1/9] treewide: Constify most dma_map_ops structures
Date: Tue, 10 Jan 2017 16:56:40 -0800
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Cc: <linux-rdma@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        "Aurelien Jacquiot" <a-jacquiot@ti.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
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To: Doug Ledford <dledford@redhat.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/57422>

Most dma_map_ops structures are never modified. Constify these
structures such that these can be write-protected. This patch
has been generated as follows:

git grep -l 'struct dma_map_ops' |
  xargs -d\\n sed -i \
    -e 's/struct dma_map_ops/const struct dma_map_ops/g' \
    -e 's/const struct dma_map_ops {/struct dma_map_ops {/g' \
    -e 's/^const struct dma_map_ops;$/struct dma_map_ops;/' \
    -e 's/const const struct dma_map_ops /const struct dma_map_ops /g';
sed -i -e 's/const \(struct dma_map_ops intel_dma_ops\)/\1/' \
  $(git grep -l 'struct dma_map_ops intel_dma_ops');
sed -i -e 's/const \(struct dma_map_ops dma_iommu_ops\)/\1/' \
  $(git grep -l 'struct dma_map_ops' | grep ^arch/powerpc);
sed -i -e '/^struct vmd_dev {$/,/^};$/ s/const \(struct dma_map_ops[[:blank:]]dma_ops;\)/\1/' \
       -e '/^static void vmd_setup_dma_ops/,/^}$/ s/const \(struct dma_map_ops \*dest\)/\1/' \
       -e 's/const \(struct dma_map_ops \*dest = \&vmd->dma_ops\)/\1/' \
    drivers/pci/host/*.c
sed -i -e '/^void __init pci_iommu_alloc(void)$/,/^}$/ s/dma_ops->/intel_dma_ops./' arch/ia64/kernel/pci-dma.c
sed -i -e 's/static const struct dma_map_ops sn_dma_ops/static struct dma_map_ops sn_dma_ops/' arch/ia64/sn/pci/pci_dma.c

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: David Howells <dhowells@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Muli Ben-Yehuda <mulix@mulix.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: x86@kernel.org
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: iommu@lists.linux-foundation.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-am33-list@redhat.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-cris-kernel@axis.com
Cc: linux-hexagon@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-metag@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: nios2-dev@lists.rocketboards.org
Cc: openrisc@lists.librecores.org
Cc: sparclinux@vger.kernel.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
Cc: xen-devel@lists.xenproject.org
---
 arch/alpha/include/asm/dma-mapping.h               |  4 +--
 arch/alpha/kernel/pci-noop.c                       |  4 +--
 arch/alpha/kernel/pci_iommu.c                      |  4 +--
 arch/arc/include/asm/dma-mapping.h                 |  4 +--
 arch/arc/mm/dma.c                                  |  2 +-
 arch/arm/common/dmabounce.c                        |  2 +-
 arch/arm/include/asm/device.h                      |  2 +-
 arch/arm/include/asm/dma-mapping.h                 | 10 +++---
 arch/arm/mm/dma-mapping.c                          | 22 ++++++------
 arch/arm/xen/mm.c                                  |  4 +--
 arch/arm64/include/asm/device.h                    |  2 +-
 arch/arm64/include/asm/dma-mapping.h               |  6 ++--
 arch/arm64/mm/dma-mapping.c                        |  6 ++--
 arch/avr32/include/asm/dma-mapping.h               |  4 +--
 arch/avr32/mm/dma-coherent.c                       |  2 +-
 arch/blackfin/include/asm/dma-mapping.h            |  4 +--
 arch/blackfin/kernel/dma-mapping.c                 |  2 +-
 arch/c6x/include/asm/dma-mapping.h                 |  4 +--
 arch/c6x/kernel/dma.c                              |  2 +-
 arch/cris/arch-v32/drivers/pci/dma.c               |  2 +-
 arch/cris/include/asm/dma-mapping.h                |  6 ++--
 arch/frv/include/asm/dma-mapping.h                 |  4 +--
 arch/frv/mb93090-mb00/pci-dma-nommu.c              |  2 +-
 arch/frv/mb93090-mb00/pci-dma.c                    |  2 +-
 arch/h8300/include/asm/dma-mapping.h               |  4 +--
 arch/h8300/kernel/dma.c                            |  2 +-
 arch/hexagon/include/asm/dma-mapping.h             |  4 +--
 arch/hexagon/kernel/dma.c                          |  4 +--
 arch/ia64/hp/common/hwsw_iommu.c                   |  4 +--
 arch/ia64/hp/common/sba_iommu.c                    |  4 +--
 arch/ia64/include/asm/dma-mapping.h                |  2 +-
 arch/ia64/include/asm/machvec.h                    |  4 +--
 arch/ia64/kernel/dma-mapping.c                     |  4 +--
 arch/ia64/kernel/pci-dma.c                         | 10 +++---
 arch/ia64/kernel/pci-swiotlb.c                     |  2 +-
 arch/m32r/include/asm/device.h                     |  2 +-
 arch/m32r/include/asm/dma-mapping.h                |  2 +-
 arch/m68k/include/asm/dma-mapping.h                |  4 +--
 arch/m68k/kernel/dma.c                             |  2 +-
 arch/metag/include/asm/dma-mapping.h               |  4 +--
 arch/metag/kernel/dma.c                            |  2 +-
 arch/microblaze/include/asm/dma-mapping.h          |  4 +--
 arch/microblaze/kernel/dma.c                       |  2 +-
 arch/mips/cavium-octeon/dma-octeon.c               |  4 +--
 arch/mips/include/asm/device.h                     |  2 +-
 arch/mips/include/asm/dma-mapping.h                |  4 +--
 .../include/asm/mach-cavium-octeon/dma-coherence.h |  2 +-
 arch/mips/include/asm/netlogic/common.h            |  2 +-
 arch/mips/loongson64/common/dma-swiotlb.c          |  2 +-
 arch/mips/mm/dma-default.c                         |  4 +--
 arch/mips/netlogic/common/nlm-dma.c                |  2 +-
 arch/mn10300/include/asm/dma-mapping.h             |  4 +--
 arch/mn10300/mm/dma-alloc.c                        |  2 +-
 arch/nios2/include/asm/dma-mapping.h               |  4 +--
 arch/nios2/mm/dma-mapping.c                        |  2 +-
 arch/openrisc/include/asm/dma-mapping.h            |  4 +--
 arch/openrisc/kernel/dma.c                         |  2 +-
 arch/parisc/include/asm/dma-mapping.h              |  8 ++---
 arch/parisc/kernel/drivers.c                       |  2 +-
 arch/parisc/kernel/pci-dma.c                       |  4 +--
 arch/powerpc/include/asm/device.h                  |  2 +-
 arch/powerpc/include/asm/dma-mapping.h             |  6 ++--
 arch/powerpc/include/asm/pci.h                     |  4 +--
 arch/powerpc/include/asm/swiotlb.h                 |  2 +-
 arch/powerpc/kernel/dma-swiotlb.c                  |  2 +-
 arch/powerpc/kernel/dma.c                          |  6 ++--
 arch/powerpc/kernel/pci-common.c                   |  6 ++--
 arch/powerpc/platforms/cell/iommu.c                |  4 +--
 arch/powerpc/platforms/powernv/npu-dma.c           |  2 +-
 arch/powerpc/platforms/ps3/system-bus.c            |  4 +--
 arch/powerpc/platforms/pseries/ibmebus.c           |  2 +-
 arch/powerpc/platforms/pseries/vio.c               |  2 +-
 arch/s390/include/asm/device.h                     |  2 +-
 arch/s390/include/asm/dma-mapping.h                |  4 +--
 arch/s390/pci/pci_dma.c                            |  2 +-
 arch/sh/include/asm/dma-mapping.h                  |  4 +--
 arch/sh/kernel/dma-nommu.c                         |  2 +-
 arch/sh/mm/consistent.c                            |  2 +-
 arch/sparc/include/asm/dma-mapping.h               |  8 ++---
 arch/sparc/kernel/iommu.c                          |  4 +--
 arch/sparc/kernel/ioport.c                         |  8 ++---
 arch/sparc/kernel/pci_sun4v.c                      |  2 +-
 arch/tile/include/asm/device.h                     |  2 +-
 arch/tile/include/asm/dma-mapping.h                | 12 +++----
 arch/tile/kernel/pci-dma.c                         | 24 ++++++-------
 arch/unicore32/include/asm/dma-mapping.h           |  4 +--
 arch/unicore32/mm/dma-swiotlb.c                    |  2 +-
 arch/x86/include/asm/device.h                      |  4 +--
 arch/x86/include/asm/dma-mapping.h                 |  4 +--
 arch/x86/include/asm/iommu.h                       |  2 +-
 arch/x86/kernel/amd_gart_64.c                      |  2 +-
 arch/x86/kernel/pci-calgary_64.c                   |  2 +-
 arch/x86/kernel/pci-dma.c                          |  4 +--
 arch/x86/kernel/pci-nommu.c                        |  2 +-
 arch/x86/kernel/pci-swiotlb.c                      |  2 +-
 arch/x86/pci/sta2x11-fixup.c                       |  2 +-
 arch/x86/xen/pci-swiotlb-xen.c                     |  2 +-
 arch/xtensa/include/asm/device.h                   |  2 +-
 arch/xtensa/include/asm/dma-mapping.h              |  4 +--
 arch/xtensa/kernel/pci-dma.c                       |  2 +-
 drivers/iommu/amd_iommu.c                          |  4 +--
 drivers/misc/mic/bus/mic_bus.c                     |  2 +-
 drivers/misc/mic/bus/scif_bus.c                    |  2 +-
 drivers/misc/mic/bus/scif_bus.h                    |  2 +-
 drivers/misc/mic/bus/vop_bus.c                     |  2 +-
 drivers/misc/mic/host/mic_boot.c                   |  4 +--
 drivers/parisc/ccio-dma.c                          |  2 +-
 drivers/parisc/sba_iommu.c                         |  2 +-
 drivers/pci/host/vmd.c                             |  2 +-
 include/linux/dma-mapping.h                        | 42 +++++++++++-----------
 include/linux/mic_bus.h                            |  2 +-
 include/xen/arm/hypervisor.h                       |  2 +-
 lib/dma-noop.c                                     |  2 +-
 113 files changed, 227 insertions(+), 227 deletions(-)

diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index c63b6ac19ee5..d3480562411d 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
 #ifndef _ALPHA_DMA_MAPPING_H
 #define _ALPHA_DMA_MAPPING_H
 
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return dma_ops;
 }
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index bb152e21e5ae..ffbdb3fb672f 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -128,7 +128,7 @@ static int alpha_noop_supported(struct device *dev, u64 mask)
 	return mask < 0x00ffffffUL ? 0 : 1;
 }
 
-struct dma_map_ops alpha_noop_ops = {
+const struct dma_map_ops alpha_noop_ops = {
 	.alloc			= alpha_noop_alloc_coherent,
 	.free			= dma_noop_free_coherent,
 	.map_page		= dma_noop_map_page,
@@ -137,5 +137,5 @@ struct dma_map_ops alpha_noop_ops = {
 	.dma_supported		= alpha_noop_supported,
 };
 
-struct dma_map_ops *dma_ops = &alpha_noop_ops;
+const struct dma_map_ops *dma_ops = &alpha_noop_ops;
 EXPORT_SYMBOL(dma_ops);
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 451fc9cdd323..7fd2329038a3 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -939,7 +939,7 @@ static int alpha_pci_mapping_error(struct device *dev, dma_addr_t dma_addr)
 	return dma_addr == 0;
 }
 
-struct dma_map_ops alpha_pci_ops = {
+const struct dma_map_ops alpha_pci_ops = {
 	.alloc			= alpha_pci_alloc_coherent,
 	.free			= alpha_pci_free_coherent,
 	.map_page		= alpha_pci_map_page,
@@ -950,5 +950,5 @@ struct dma_map_ops alpha_pci_ops = {
 	.dma_supported		= alpha_pci_supported,
 };
 
-struct dma_map_ops *dma_ops = &alpha_pci_ops;
+const struct dma_map_ops *dma_ops = &alpha_pci_ops;
 EXPORT_SYMBOL(dma_ops);
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index 266f11c9bd59..fdff3aa60052 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -18,9 +18,9 @@
 #include <plat/dma.h>
 #endif
 
-extern struct dma_map_ops arc_dma_ops;
+extern const struct dma_map_ops arc_dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &arc_dma_ops;
 }
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 08450a1a5b5f..2a07e6ecafbd 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -218,7 +218,7 @@ static int arc_dma_supported(struct device *dev, u64 dma_mask)
 	return dma_mask == DMA_BIT_MASK(32);
 }
 
-struct dma_map_ops arc_dma_ops = {
+const struct dma_map_ops arc_dma_ops = {
 	.alloc			= arc_dma_alloc,
 	.free			= arc_dma_free,
 	.mmap			= arc_dma_mmap,
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index 75055df1cda3..9b1b7be2ec0e 100644
--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -452,7 +452,7 @@ static int dmabounce_set_mask(struct device *dev, u64 dma_mask)
 	return arm_dma_ops.set_dma_mask(dev, dma_mask);
 }
 
-static struct dma_map_ops dmabounce_ops = {
+static const struct dma_map_ops dmabounce_ops = {
 	.alloc			= arm_dma_alloc,
 	.free			= arm_dma_free,
 	.mmap			= arm_dma_mmap,
diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h
index 4111592f0130..d8a572f9c187 100644
--- a/arch/arm/include/asm/device.h
+++ b/arch/arm/include/asm/device.h
@@ -7,7 +7,7 @@
 #define ASMARM_DEVICE_H
 
 struct dev_archdata {
-	struct dma_map_ops	*dma_ops;
+	const struct dma_map_ops	*dma_ops;
 #ifdef CONFIG_DMABOUNCE
 	struct dmabounce_device_info *dmabounce;
 #endif
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index bf02dbd9ccda..1aabd781306f 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -13,17 +13,17 @@
 #include <asm/xen/hypervisor.h>
 
 #define DMA_ERROR_CODE	(~(dma_addr_t)0x0)
-extern struct dma_map_ops arm_dma_ops;
-extern struct dma_map_ops arm_coherent_dma_ops;
+extern const struct dma_map_ops arm_dma_ops;
+extern const struct dma_map_ops arm_coherent_dma_ops;
 
-static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
 {
 	if (dev && dev->archdata.dma_ops)
 		return dev->archdata.dma_ops;
 	return &arm_dma_ops;
 }
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	if (xen_initial_domain())
 		return xen_dma_ops;
@@ -31,7 +31,7 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 		return __generic_dma_ops(dev);
 }
 
-static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
+static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
 {
 	BUG_ON(!dev);
 	dev->archdata.dma_ops = ops;
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index ab7710002ba6..d26fe1a35687 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -180,7 +180,7 @@ static void arm_dma_sync_single_for_device(struct device *dev,
 	__dma_page_cpu_to_dev(page, offset, size, dir);
 }
 
-struct dma_map_ops arm_dma_ops = {
+const struct dma_map_ops arm_dma_ops = {
 	.alloc			= arm_dma_alloc,
 	.free			= arm_dma_free,
 	.mmap			= arm_dma_mmap,
@@ -204,7 +204,7 @@ static int arm_coherent_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 		 void *cpu_addr, dma_addr_t dma_addr, size_t size,
 		 unsigned long attrs);
 
-struct dma_map_ops arm_coherent_dma_ops = {
+const struct dma_map_ops arm_coherent_dma_ops = {
 	.alloc			= arm_coherent_dma_alloc,
 	.free			= arm_coherent_dma_free,
 	.mmap			= arm_coherent_dma_mmap,
@@ -1067,7 +1067,7 @@ static void __dma_page_dev_to_cpu(struct page *page, unsigned long off,
 int arm_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
 		enum dma_data_direction dir, unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 	struct scatterlist *s;
 	int i, j;
 
@@ -1101,7 +1101,7 @@ int arm_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
 void arm_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
 		enum dma_data_direction dir, unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 	struct scatterlist *s;
 
 	int i;
@@ -1120,7 +1120,7 @@ void arm_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
 void arm_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
 			int nents, enum dma_data_direction dir)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 	struct scatterlist *s;
 	int i;
 
@@ -1139,7 +1139,7 @@ void arm_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
 void arm_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
 			int nents, enum dma_data_direction dir)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 	struct scatterlist *s;
 	int i;
 
@@ -2099,7 +2099,7 @@ static void arm_iommu_sync_single_for_device(struct device *dev,
 	__dma_page_cpu_to_dev(page, offset, size, dir);
 }
 
-struct dma_map_ops iommu_ops = {
+const struct dma_map_ops iommu_ops = {
 	.alloc		= arm_iommu_alloc_attrs,
 	.free		= arm_iommu_free_attrs,
 	.mmap		= arm_iommu_mmap_attrs,
@@ -2119,7 +2119,7 @@ struct dma_map_ops iommu_ops = {
 	.unmap_resource		= arm_iommu_unmap_resource,
 };
 
-struct dma_map_ops iommu_coherent_ops = {
+const struct dma_map_ops iommu_coherent_ops = {
 	.alloc		= arm_coherent_iommu_alloc_attrs,
 	.free		= arm_coherent_iommu_free_attrs,
 	.mmap		= arm_coherent_iommu_mmap_attrs,
@@ -2319,7 +2319,7 @@ void arm_iommu_detach_device(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(arm_iommu_detach_device);
 
-static struct dma_map_ops *arm_get_iommu_dma_map_ops(bool coherent)
+static const struct dma_map_ops *arm_get_iommu_dma_map_ops(bool coherent)
 {
 	return coherent ? &iommu_coherent_ops : &iommu_ops;
 }
@@ -2374,7 +2374,7 @@ static void arm_teardown_iommu_dma_ops(struct device *dev) { }
 
 #endif	/* CONFIG_ARM_DMA_USE_IOMMU */
 
-static struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
+static const struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
 {
 	return coherent ? &arm_coherent_dma_ops : &arm_dma_ops;
 }
@@ -2382,7 +2382,7 @@ static struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
 void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 			const struct iommu_ops *iommu, bool coherent)
 {
-	struct dma_map_ops *dma_ops;
+	const struct dma_map_ops *dma_ops;
 
 	dev->archdata.dma_coherent = coherent;
 	if (arm_setup_iommu_dma_ops(dev, dma_base, size, iommu))
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index bd62d94f8ac5..ce18c91b50a1 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -182,10 +182,10 @@ void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order)
 }
 EXPORT_SYMBOL_GPL(xen_destroy_contiguous_region);
 
-struct dma_map_ops *xen_dma_ops;
+const struct dma_map_ops *xen_dma_ops;
 EXPORT_SYMBOL(xen_dma_ops);
 
-static struct dma_map_ops xen_swiotlb_dma_ops = {
+static const struct dma_map_ops xen_swiotlb_dma_ops = {
 	.alloc = xen_swiotlb_alloc_coherent,
 	.free = xen_swiotlb_free_coherent,
 	.sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu,
diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h
index 243ef256b8c9..00c678cc31e1 100644
--- a/arch/arm64/include/asm/device.h
+++ b/arch/arm64/include/asm/device.h
@@ -17,7 +17,7 @@
 #define __ASM_DEVICE_H
 
 struct dev_archdata {
-	struct dma_map_ops *dma_ops;
+	const struct dma_map_ops *dma_ops;
 #ifdef CONFIG_IOMMU_API
 	void *iommu;			/* private IOMMU data */
 #endif
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index ccea82c2b089..1fedb43be712 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -25,9 +25,9 @@
 #include <asm/xen/hypervisor.h>
 
 #define DMA_ERROR_CODE	(~(dma_addr_t)0)
-extern struct dma_map_ops dummy_dma_ops;
+extern const struct dma_map_ops dummy_dma_ops;
 
-static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
 {
 	if (dev && dev->archdata.dma_ops)
 		return dev->archdata.dma_ops;
@@ -39,7 +39,7 @@ static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
 	return &dummy_dma_ops;
 }
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	if (xen_initial_domain())
 		return xen_dma_ops;
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index e04082700bb1..bcef6368d48f 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -352,7 +352,7 @@ static int __swiotlb_dma_supported(struct device *hwdev, u64 mask)
 	return 1;
 }
 
-static struct dma_map_ops swiotlb_dma_ops = {
+static const struct dma_map_ops swiotlb_dma_ops = {
 	.alloc = __dma_alloc,
 	.free = __dma_free,
 	.mmap = __swiotlb_mmap,
@@ -505,7 +505,7 @@ static int __dummy_dma_supported(struct device *hwdev, u64 mask)
 	return 0;
 }
 
-struct dma_map_ops dummy_dma_ops = {
+const struct dma_map_ops dummy_dma_ops = {
 	.alloc                  = __dummy_alloc,
 	.free                   = __dummy_free,
 	.mmap                   = __dummy_mmap,
@@ -784,7 +784,7 @@ static void __iommu_unmap_sg_attrs(struct device *dev,
 	iommu_dma_unmap_sg(dev, sgl, nelems, dir, attrs);
 }
 
-static struct dma_map_ops iommu_dma_ops = {
+static const struct dma_map_ops iommu_dma_ops = {
 	.alloc = __iommu_alloc_attrs,
 	.free = __iommu_free_attrs,
 	.mmap = __iommu_mmap_attrs,
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index 1115f2a645d1..b2b43c0e0774 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -4,9 +4,9 @@
 extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	int direction);
 
-extern struct dma_map_ops avr32_dma_ops;
+extern const struct dma_map_ops avr32_dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &avr32_dma_ops;
 }
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
index 54534e5d0781..555222d4f414 100644
--- a/arch/avr32/mm/dma-coherent.c
+++ b/arch/avr32/mm/dma-coherent.c
@@ -191,7 +191,7 @@ static void avr32_dma_sync_sg_for_device(struct device *dev,
 		dma_cache_sync(dev, sg_virt(sg), sg->length, direction);
 }
 
-struct dma_map_ops avr32_dma_ops = {
+const struct dma_map_ops avr32_dma_ops = {
 	.alloc			= avr32_dma_alloc,
 	.free			= avr32_dma_free,
 	.map_page		= avr32_dma_map_page,
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index 3490570aaa82..320fb50fbd41 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -36,9 +36,9 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir)
 		__dma_sync(addr, size, dir);
 }
 
-extern struct dma_map_ops bfin_dma_ops;
+extern const struct dma_map_ops bfin_dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &bfin_dma_ops;
 }
diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c
index a27a74a18fb0..477bb29a7987 100644
--- a/arch/blackfin/kernel/dma-mapping.c
+++ b/arch/blackfin/kernel/dma-mapping.c
@@ -159,7 +159,7 @@ static inline void bfin_dma_sync_single_for_device(struct device *dev,
 	_dma_sync(handle, size, dir);
 }
 
-struct dma_map_ops bfin_dma_ops = {
+const struct dma_map_ops bfin_dma_ops = {
 	.alloc			= bfin_dma_alloc,
 	.free			= bfin_dma_free,
 
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index 5717b1e52d96..88258b9ebc8e 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -17,9 +17,9 @@
  */
 #define DMA_ERROR_CODE ~0
 
-extern struct dma_map_ops c6x_dma_ops;
+extern const struct dma_map_ops c6x_dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &c6x_dma_ops;
 }
diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
index 6752df32ef06..9fff8be75f58 100644
--- a/arch/c6x/kernel/dma.c
+++ b/arch/c6x/kernel/dma.c
@@ -123,7 +123,7 @@ static void c6x_dma_sync_sg_for_device(struct device *dev,
 
 }
 
-struct dma_map_ops c6x_dma_ops = {
+const struct dma_map_ops c6x_dma_ops = {
 	.alloc			= c6x_dma_alloc,
 	.free			= c6x_dma_free,
 	.map_page		= c6x_dma_map_page,
diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
index 1f0636793f0c..7072341995ff 100644
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ b/arch/cris/arch-v32/drivers/pci/dma.c
@@ -69,7 +69,7 @@ static inline int v32_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-struct dma_map_ops v32_dma_ops = {
+const struct dma_map_ops v32_dma_ops = {
 	.alloc			= v32_dma_alloc,
 	.free			= v32_dma_free,
 	.map_page		= v32_dma_map_page,
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index 5a370178a0e9..aae4fbc0a656 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -2,14 +2,14 @@
 #define _ASM_CRIS_DMA_MAPPING_H
 
 #ifdef CONFIG_PCI
-extern struct dma_map_ops v32_dma_ops;
+extern const struct dma_map_ops v32_dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &v32_dma_ops;
 }
 #else
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	BUG();
 	return NULL;
diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 9a82bfa4303b..150cc00544a8 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -7,9 +7,9 @@
 extern unsigned long __nongprelbss dma_coherent_mem_start;
 extern unsigned long __nongprelbss dma_coherent_mem_end;
 
-extern struct dma_map_ops frv_dma_ops;
+extern const struct dma_map_ops frv_dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &frv_dma_ops;
 }
diff --git a/arch/frv/mb93090-mb00/pci-dma-nommu.c b/arch/frv/mb93090-mb00/pci-dma-nommu.c
index 187688128c65..4a96de7f0af4 100644
--- a/arch/frv/mb93090-mb00/pci-dma-nommu.c
+++ b/arch/frv/mb93090-mb00/pci-dma-nommu.c
@@ -164,7 +164,7 @@ static int frv_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-struct dma_map_ops frv_dma_ops = {
+const struct dma_map_ops frv_dma_ops = {
 	.alloc			= frv_dma_alloc,
 	.free			= frv_dma_free,
 	.map_page		= frv_dma_map_page,
diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c
index dba7df918144..e7130abc0dae 100644
--- a/arch/frv/mb93090-mb00/pci-dma.c
+++ b/arch/frv/mb93090-mb00/pci-dma.c
@@ -106,7 +106,7 @@ static int frv_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-struct dma_map_ops frv_dma_ops = {
+const struct dma_map_ops frv_dma_ops = {
 	.alloc			= frv_dma_alloc,
 	.free			= frv_dma_free,
 	.map_page		= frv_dma_map_page,
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
index 7ac7fadffed0..f804bca4c13f 100644
--- a/arch/h8300/include/asm/dma-mapping.h
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
 #ifndef _H8300_DMA_MAPPING_H
 #define _H8300_DMA_MAPPING_H
 
-extern struct dma_map_ops h8300_dma_map_ops;
+extern const struct dma_map_ops h8300_dma_map_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &h8300_dma_map_ops;
 }
diff --git a/arch/h8300/kernel/dma.c b/arch/h8300/kernel/dma.c
index 3651da045806..225dd0a188dc 100644
--- a/arch/h8300/kernel/dma.c
+++ b/arch/h8300/kernel/dma.c
@@ -60,7 +60,7 @@ static int map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
-struct dma_map_ops h8300_dma_map_ops = {
+const struct dma_map_ops h8300_dma_map_ops = {
 	.alloc = dma_alloc,
 	.free = dma_free,
 	.map_page = map_page,
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index 7ef58df909fc..b812e917cd95 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -32,9 +32,9 @@ struct device;
 extern int bad_dma_address;
 #define DMA_ERROR_CODE bad_dma_address
 
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	if (unlikely(dev == NULL))
 		return NULL;
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index dbc4f1003da4..e74b65009587 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -25,7 +25,7 @@
 #include <linux/module.h>
 #include <asm/page.h>
 
-struct dma_map_ops *dma_ops;
+const struct dma_map_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
 int bad_dma_address;  /*  globals are automatically initialized to zero  */
@@ -203,7 +203,7 @@ static void hexagon_sync_single_for_device(struct device *dev,
 	dma_sync(dma_addr_to_virt(dma_handle), size, dir);
 }
 
-struct dma_map_ops hexagon_dma_ops = {
+const struct dma_map_ops hexagon_dma_ops = {
 	.alloc		= hexagon_dma_alloc_coherent,
 	.free		= hexagon_free_coherent,
 	.map_sg		= hexagon_map_sg,
diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c
index 1e4cae5ae053..0310078a95f8 100644
--- a/arch/ia64/hp/common/hwsw_iommu.c
+++ b/arch/ia64/hp/common/hwsw_iommu.c
@@ -18,7 +18,7 @@
 #include <linux/export.h>
 #include <asm/machvec.h>
 
-extern struct dma_map_ops sba_dma_ops, swiotlb_dma_ops;
+extern const struct dma_map_ops sba_dma_ops, swiotlb_dma_ops;
 
 /* swiotlb declarations & definitions: */
 extern int swiotlb_late_init_with_default_size (size_t size);
@@ -34,7 +34,7 @@ static inline int use_swiotlb(struct device *dev)
 		!sba_dma_ops.dma_supported(dev, *dev->dma_mask);
 }
 
-struct dma_map_ops *hwsw_dma_get_ops(struct device *dev)
+const struct dma_map_ops *hwsw_dma_get_ops(struct device *dev)
 {
 	if (use_swiotlb(dev))
 		return &swiotlb_dma_ops;
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 630ee8073899..aec4a3354abe 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -2096,7 +2096,7 @@ static int __init acpi_sba_ioc_init_acpi(void)
 /* This has to run before acpi_scan_init(). */
 arch_initcall(acpi_sba_ioc_init_acpi);
 
-extern struct dma_map_ops swiotlb_dma_ops;
+extern const struct dma_map_ops swiotlb_dma_ops;
 
 static int __init
 sba_init(void)
@@ -2216,7 +2216,7 @@ sba_page_override(char *str)
 
 __setup("sbapagesize=",sba_page_override);
 
-struct dma_map_ops sba_dma_ops = {
+const struct dma_map_ops sba_dma_ops = {
 	.alloc			= sba_alloc_coherent,
 	.free			= sba_free_coherent,
 	.map_page		= sba_map_page,
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index d472805edfa9..05e467d56d86 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -14,7 +14,7 @@
 
 #define DMA_ERROR_CODE 0
 
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
 extern struct ia64_machine_vector ia64_mv;
 extern void set_iommu_machvec(void);
 
diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h
index ed7f09089f12..af285c423e1e 100644
--- a/arch/ia64/include/asm/machvec.h
+++ b/arch/ia64/include/asm/machvec.h
@@ -44,7 +44,7 @@ typedef void ia64_mv_kernel_launch_event_t(void);
 /* DMA-mapping interface: */
 typedef void ia64_mv_dma_init (void);
 typedef u64 ia64_mv_dma_get_required_mask (struct device *);
-typedef struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
+typedef const struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
 
 /*
  * WARNING: The legacy I/O space is _architected_.  Platforms are
@@ -248,7 +248,7 @@ extern void machvec_init_from_cmdline(const char *cmdline);
 # endif /* CONFIG_IA64_GENERIC */
 
 extern void swiotlb_dma_init(void);
-extern struct dma_map_ops *dma_get_ops(struct device *);
+extern const struct dma_map_ops *dma_get_ops(struct device *);
 
 /*
  * Define default versions so we can extend machvec for new platforms without having
diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
index 7f7916238208..e0dd97f4eb69 100644
--- a/arch/ia64/kernel/dma-mapping.c
+++ b/arch/ia64/kernel/dma-mapping.c
@@ -4,7 +4,7 @@
 /* Set this to 1 if there is a HW IOMMU in the system */
 int iommu_detected __read_mostly;
 
-struct dma_map_ops *dma_ops;
+const struct dma_map_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
 #define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
@@ -17,7 +17,7 @@ static int __init dma_init(void)
 }
 fs_initcall(dma_init);
 
-struct dma_map_ops *dma_get_ops(struct device *dev)
+const struct dma_map_ops *dma_get_ops(struct device *dev)
 {
 	return dma_ops;
 }
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 992c1098c522..9094a73f996f 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -90,11 +90,11 @@ void __init pci_iommu_alloc(void)
 {
 	dma_ops = &intel_dma_ops;
 
-	dma_ops->sync_single_for_cpu = machvec_dma_sync_single;
-	dma_ops->sync_sg_for_cpu = machvec_dma_sync_sg;
-	dma_ops->sync_single_for_device = machvec_dma_sync_single;
-	dma_ops->sync_sg_for_device = machvec_dma_sync_sg;
-	dma_ops->dma_supported = iommu_dma_supported;
+	intel_dma_ops.sync_single_for_cpu = machvec_dma_sync_single;
+	intel_dma_ops.sync_sg_for_cpu = machvec_dma_sync_sg;
+	intel_dma_ops.sync_single_for_device = machvec_dma_sync_single;
+	intel_dma_ops.sync_sg_for_device = machvec_dma_sync_sg;
+	intel_dma_ops.dma_supported = iommu_dma_supported;
 
 	/*
 	 * The order of these functions is important for
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 2933208c0285..a14989dacded 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -30,7 +30,7 @@ static void ia64_swiotlb_free_coherent(struct device *dev, size_t size,
 	swiotlb_free_coherent(dev, size, vaddr, dma_addr);
 }
 
-struct dma_map_ops swiotlb_dma_ops = {
+const struct dma_map_ops swiotlb_dma_ops = {
 	.alloc = ia64_swiotlb_alloc_coherent,
 	.free = ia64_swiotlb_free_coherent,
 	.map_page = swiotlb_map_page,
diff --git a/arch/m32r/include/asm/device.h b/arch/m32r/include/asm/device.h
index 4a9f35e0973f..7955a9799466 100644
--- a/arch/m32r/include/asm/device.h
+++ b/arch/m32r/include/asm/device.h
@@ -4,7 +4,7 @@
  * This file is released under the GPLv2
  */
 struct dev_archdata {
-	struct dma_map_ops *dma_ops;
+	const struct dma_map_ops *dma_ops;
 };
 
 struct pdev_archdata {
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 2c43a77fe942..99c43d2f05dc 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -10,7 +10,7 @@
 
 #define DMA_ERROR_CODE (~(dma_addr_t)0x0)
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	if (dev && dev->archdata.dma_ops)
 		return dev->archdata.dma_ops;
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 96c536194287..863509939d5a 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
 #ifndef _M68K_DMA_MAPPING_H
 #define _M68K_DMA_MAPPING_H
 
-extern struct dma_map_ops m68k_dma_ops;
+extern const struct dma_map_ops m68k_dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
         return &m68k_dma_ops;
 }
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index 07070065a425..0fc5dabb4a42 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -158,7 +158,7 @@ static int m68k_dma_map_sg(struct device *dev, struct scatterlist *sglist,
 	return nents;
 }
 
-struct dma_map_ops m68k_dma_ops = {
+const struct dma_map_ops m68k_dma_ops = {
 	.alloc			= m68k_dma_alloc,
 	.free			= m68k_dma_free,
 	.map_page		= m68k_dma_map_page,
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index 27af5d479ce6..c156a7ac732f 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
 #ifndef _ASM_METAG_DMA_MAPPING_H
 #define _ASM_METAG_DMA_MAPPING_H
 
-extern struct dma_map_ops metag_dma_ops;
+extern const struct dma_map_ops metag_dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &metag_dma_ops;
 }
diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index 91968d92652b..f0ab3a498328 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -575,7 +575,7 @@ static void metag_dma_sync_sg_for_device(struct device *dev,
 		dma_sync_for_device(sg_virt(sg), sg->length, direction);
 }
 
-struct dma_map_ops metag_dma_ops = {
+const struct dma_map_ops metag_dma_ops = {
 	.alloc			= metag_dma_alloc,
 	.free			= metag_dma_free,
 	.map_page		= metag_dma_map_page,
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 1768d4bdc8d3..c7faf2fb51d6 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -36,9 +36,9 @@
 /*
  * Available generic sets of operations
  */
-extern struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_direct_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &dma_direct_ops;
 }
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 818daf230eb4..12e093a03e60 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -187,7 +187,7 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 #endif
 }
 
-struct dma_map_ops dma_direct_ops = {
+const struct dma_map_ops dma_direct_ops = {
 	.alloc		= dma_direct_alloc_coherent,
 	.free		= dma_direct_free_coherent,
 	.mmap		= dma_direct_mmap_coherent,
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index fd69528b24fb..897d32c888ee 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -205,7 +205,7 @@ static phys_addr_t octeon_unity_dma_to_phys(struct device *dev, dma_addr_t daddr
 }
 
 struct octeon_dma_map_ops {
-	struct dma_map_ops dma_map_ops;
+	const struct dma_map_ops dma_map_ops;
 	dma_addr_t (*phys_to_dma)(struct device *dev, phys_addr_t paddr);
 	phys_addr_t (*dma_to_phys)(struct device *dev, dma_addr_t daddr);
 };
@@ -333,7 +333,7 @@ static struct octeon_dma_map_ops _octeon_pci_dma_map_ops = {
 	},
 };
 
-struct dma_map_ops *octeon_pci_dma_map_ops;
+const struct dma_map_ops *octeon_pci_dma_map_ops;
 
 void __init octeon_pci_dma_init(void)
 {
diff --git a/arch/mips/include/asm/device.h b/arch/mips/include/asm/device.h
index 21c2082a0dfb..ebc5c1265473 100644
--- a/arch/mips/include/asm/device.h
+++ b/arch/mips/include/asm/device.h
@@ -10,7 +10,7 @@ struct dma_map_ops;
 
 struct dev_archdata {
 	/* DMA operations on that device */
-	struct dma_map_ops *dma_ops;
+	const struct dma_map_ops *dma_ops;
 
 #ifdef CONFIG_DMA_PERDEV_COHERENT
 	/* Non-zero if DMA is coherent with CPU caches */
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 7aa71b9b0258..b59b084a7569 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -9,9 +9,9 @@
 #include <dma-coherence.h>
 #endif
 
-extern struct dma_map_ops *mips_dma_map_ops;
+extern const struct dma_map_ops *mips_dma_map_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	if (dev && dev->archdata.dma_ops)
 		return dev->archdata.dma_ops;
diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
index 460042ee5d6f..9110988b92a1 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
@@ -65,7 +65,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
 phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
 
 struct dma_map_ops;
-extern struct dma_map_ops *octeon_pci_dma_map_ops;
+extern const struct dma_map_ops *octeon_pci_dma_map_ops;
 extern char *octeon_swiotlb;
 
 #endif /* __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H */
diff --git a/arch/mips/include/asm/netlogic/common.h b/arch/mips/include/asm/netlogic/common.h
index be52c2125d71..e0717d10e650 100644
--- a/arch/mips/include/asm/netlogic/common.h
+++ b/arch/mips/include/asm/netlogic/common.h
@@ -88,7 +88,7 @@ extern struct plat_smp_ops nlm_smp_ops;
 extern char nlm_reset_entry[], nlm_reset_entry_end[];
 
 /* SWIOTLB */
-extern struct dma_map_ops nlm_swiotlb_dma_ops;
+extern const struct dma_map_ops nlm_swiotlb_dma_ops;
 
 extern unsigned int nlm_threads_per_core;
 extern cpumask_t nlm_cpumask;
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index aab4fd681e1f..7296df043d92 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -122,7 +122,7 @@ phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
 	return daddr;
 }
 
-static struct dma_map_ops loongson_dma_map_ops = {
+static const struct dma_map_ops loongson_dma_map_ops = {
 	.alloc = loongson_dma_alloc_coherent,
 	.free = loongson_dma_free_coherent,
 	.map_page = loongson_dma_map_page,
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index a39c36af97ad..1cb84472cb58 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -417,7 +417,7 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 
 EXPORT_SYMBOL(dma_cache_sync);
 
-static struct dma_map_ops mips_default_dma_map_ops = {
+static const struct dma_map_ops mips_default_dma_map_ops = {
 	.alloc = mips_dma_alloc_coherent,
 	.free = mips_dma_free_coherent,
 	.mmap = mips_dma_mmap,
@@ -433,7 +433,7 @@ static struct dma_map_ops mips_default_dma_map_ops = {
 	.dma_supported = mips_dma_supported
 };
 
-struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
+const struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
 EXPORT_SYMBOL(mips_dma_map_ops);
 
 #define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
diff --git a/arch/mips/netlogic/common/nlm-dma.c b/arch/mips/netlogic/common/nlm-dma.c
index 0630693bec2a..0ec9d9da6d51 100644
--- a/arch/mips/netlogic/common/nlm-dma.c
+++ b/arch/mips/netlogic/common/nlm-dma.c
@@ -67,7 +67,7 @@ static void nlm_dma_free_coherent(struct device *dev, size_t size,
 	swiotlb_free_coherent(dev, size, vaddr, dma_handle);
 }
 
-struct dma_map_ops nlm_swiotlb_dma_ops = {
+const struct dma_map_ops nlm_swiotlb_dma_ops = {
 	.alloc = nlm_dma_alloc_coherent,
 	.free = nlm_dma_free_coherent,
 	.map_page = swiotlb_map_page,
diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index 1dcd44757f32..564e3927e005 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -14,9 +14,9 @@
 #include <asm/cache.h>
 #include <asm/io.h>
 
-extern struct dma_map_ops mn10300_dma_ops;
+extern const struct dma_map_ops mn10300_dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &mn10300_dma_ops;
 }
diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c
index 4f4b9029f0ea..86108d2496b3 100644
--- a/arch/mn10300/mm/dma-alloc.c
+++ b/arch/mn10300/mm/dma-alloc.c
@@ -121,7 +121,7 @@ static int mn10300_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-struct dma_map_ops mn10300_dma_ops = {
+const struct dma_map_ops mn10300_dma_ops = {
 	.alloc			= mn10300_dma_alloc,
 	.free			= mn10300_dma_free,
 	.map_page		= mn10300_dma_map_page,
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index bec8ac8e6ad2..aa00d839a64b 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -10,9 +10,9 @@
 #ifndef _ASM_NIOS2_DMA_MAPPING_H
 #define _ASM_NIOS2_DMA_MAPPING_H
 
-extern struct dma_map_ops nios2_dma_ops;
+extern const struct dma_map_ops nios2_dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &nios2_dma_ops;
 }
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index f6a5dcf9d682..7040c1adbb5e 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -192,7 +192,7 @@ static void nios2_dma_sync_sg_for_device(struct device *dev,
 
 }
 
-struct dma_map_ops nios2_dma_ops = {
+const struct dma_map_ops nios2_dma_ops = {
 	.alloc			= nios2_dma_alloc,
 	.free			= nios2_dma_free,
 	.map_page		= nios2_dma_map_page,
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index 1f260bccb368..88acbedb4947 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -28,9 +28,9 @@
 
 #define DMA_ERROR_CODE		(~(dma_addr_t)0x0)
 
-extern struct dma_map_ops or1k_dma_map_ops;
+extern const struct dma_map_ops or1k_dma_map_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &or1k_dma_map_ops;
 }
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index 906998bac957..b10369b7e31b 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -232,7 +232,7 @@ or1k_sync_single_for_device(struct device *dev,
 		mtspr(SPR_DCBFR, cl);
 }
 
-struct dma_map_ops or1k_dma_map_ops = {
+const struct dma_map_ops or1k_dma_map_ops = {
 	.alloc = or1k_dma_alloc,
 	.free = or1k_dma_free,
 	.map_page = or1k_map_page,
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 16e024602737..1749073e44fc 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -21,13 +21,13 @@
 */
 
 #ifdef CONFIG_PA11
-extern struct dma_map_ops pcxl_dma_ops;
-extern struct dma_map_ops pcx_dma_ops;
+extern const struct dma_map_ops pcxl_dma_ops;
+extern const struct dma_map_ops pcx_dma_ops;
 #endif
 
-extern struct dma_map_ops *hppa_dma_ops;
+extern const struct dma_map_ops *hppa_dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return hppa_dma_ops;
 }
diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 700e2d2da096..fa78419100c8 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -40,7 +40,7 @@
 #include <asm/parisc-device.h>
 
 /* See comments in include/asm-parisc/pci.h */
-struct dma_map_ops *hppa_dma_ops __read_mostly;
+const struct dma_map_ops *hppa_dma_ops __read_mostly;
 EXPORT_SYMBOL(hppa_dma_ops);
 
 static struct device root = {
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 697c53543a4d..5f0067a62738 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -572,7 +572,7 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
 		flush_kernel_vmap_range(sg_virt(sg), sg->length);
 }
 
-struct dma_map_ops pcxl_dma_ops = {
+const struct dma_map_ops pcxl_dma_ops = {
 	.dma_supported =	pa11_dma_supported,
 	.alloc =		pa11_dma_alloc,
 	.free =			pa11_dma_free,
@@ -608,7 +608,7 @@ static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
 	return;
 }
 
-struct dma_map_ops pcx_dma_ops = {
+const struct dma_map_ops pcx_dma_ops = {
 	.dma_supported =	pa11_dma_supported,
 	.alloc =		pcx_dma_alloc,
 	.free =			pcx_dma_free,
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h
index 406c2b1ff82d..49cbb0fca233 100644
--- a/arch/powerpc/include/asm/device.h
+++ b/arch/powerpc/include/asm/device.h
@@ -21,7 +21,7 @@ struct iommu_table;
  */
 struct dev_archdata {
 	/* DMA operations on that device */
-	struct dma_map_ops	*dma_ops;
+	const struct dma_map_ops	*dma_ops;
 
 	/*
 	 * These two used to be a union. However, with the hybrid ops we need
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 84e3f8dd5e4f..2ec3eadf336f 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -76,9 +76,9 @@ static inline unsigned long device_to_mask(struct device *dev)
 #ifdef CONFIG_PPC64
 extern struct dma_map_ops dma_iommu_ops;
 #endif
-extern struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_direct_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	/* We don't handle the NULL dev case for ISA for now. We could
 	 * do it via an out of line call but it is not needed for now. The
@@ -91,7 +91,7 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 	return dev->archdata.dma_ops;
 }
 
-static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
+static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
 {
 	dev->archdata.dma_ops = ops;
 }
diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index e9bd6cf0212f..93eded8d3843 100644
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -53,8 +53,8 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 }
 
 #ifdef CONFIG_PCI
-extern void set_pci_dma_ops(struct dma_map_ops *dma_ops);
-extern struct dma_map_ops *get_pci_dma_ops(void);
+extern void set_pci_dma_ops(const struct dma_map_ops *dma_ops);
+extern const struct dma_map_ops *get_pci_dma_ops(void);
 #else	/* CONFIG_PCI */
 #define set_pci_dma_ops(d)
 #define get_pci_dma_ops()	NULL
diff --git a/arch/powerpc/include/asm/swiotlb.h b/arch/powerpc/include/asm/swiotlb.h
index de99d6e29430..01d45a5fd00b 100644
--- a/arch/powerpc/include/asm/swiotlb.h
+++ b/arch/powerpc/include/asm/swiotlb.h
@@ -13,7 +13,7 @@
 
 #include <linux/swiotlb.h>
 
-extern struct dma_map_ops swiotlb_dma_ops;
+extern const struct dma_map_ops swiotlb_dma_ops;
 
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index c6689f658b50..d0ea7860e02b 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -46,7 +46,7 @@ static u64 swiotlb_powerpc_get_required(struct device *dev)
  * map_page, and unmap_page on highmem, use normal dma_ops
  * for everything else.
  */
-struct dma_map_ops swiotlb_dma_ops = {
+const struct dma_map_ops swiotlb_dma_ops = {
 	.alloc = __dma_direct_alloc_coherent,
 	.free = __dma_direct_free_coherent,
 	.mmap = dma_direct_mmap_coherent,
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 6877e3fa95bb..03b98f1f98ec 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -274,7 +274,7 @@ static inline void dma_direct_sync_single(struct device *dev,
 }
 #endif
 
-struct dma_map_ops dma_direct_ops = {
+const struct dma_map_ops dma_direct_ops = {
 	.alloc				= dma_direct_alloc_coherent,
 	.free				= dma_direct_free_coherent,
 	.mmap				= dma_direct_mmap_coherent,
@@ -316,7 +316,7 @@ EXPORT_SYMBOL(dma_set_coherent_mask);
 
 int __dma_set_mask(struct device *dev, u64 dma_mask)
 {
-	struct dma_map_ops *dma_ops = get_dma_ops(dev);
+	const struct dma_map_ops *dma_ops = get_dma_ops(dev);
 
 	if ((dma_ops != NULL) && (dma_ops->set_dma_mask != NULL))
 		return dma_ops->set_dma_mask(dev, dma_mask);
@@ -344,7 +344,7 @@ EXPORT_SYMBOL(dma_set_mask);
 
 u64 __dma_get_required_mask(struct device *dev)
 {
-	struct dma_map_ops *dma_ops = get_dma_ops(dev);
+	const struct dma_map_ops *dma_ops = get_dma_ops(dev);
 
 	if (unlikely(dma_ops == NULL))
 		return 0;
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 74bec5498972..09db4778435c 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -59,14 +59,14 @@ resource_size_t isa_mem_base;
 EXPORT_SYMBOL(isa_mem_base);
 
 
-static struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
+static const struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
 
-void set_pci_dma_ops(struct dma_map_ops *dma_ops)
+void set_pci_dma_ops(const struct dma_map_ops *dma_ops)
 {
 	pci_dma_ops = dma_ops;
 }
 
-struct dma_map_ops *get_pci_dma_ops(void)
+const struct dma_map_ops *get_pci_dma_ops(void)
 {
 	return pci_dma_ops;
 }
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 7ff51f96a00e..e1413e69e5fe 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -651,7 +651,7 @@ static int dma_fixed_dma_supported(struct device *dev, u64 mask)
 
 static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask);
 
-static struct dma_map_ops dma_iommu_fixed_ops = {
+static const struct dma_map_ops dma_iommu_fixed_ops = {
 	.alloc          = dma_fixed_alloc_coherent,
 	.free           = dma_fixed_free_coherent,
 	.map_sg         = dma_fixed_map_sg,
@@ -1172,7 +1172,7 @@ __setup("iommu_fixed=", setup_iommu_fixed);
 
 static u64 cell_dma_get_required_mask(struct device *dev)
 {
-	struct dma_map_ops *dma_ops;
+	const struct dma_map_ops *dma_ops;
 
 	if (!dev->dma_mask)
 		return 0;
diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c
index 73b155fd4481..1c383f38031d 100644
--- a/arch/powerpc/platforms/powernv/npu-dma.c
+++ b/arch/powerpc/platforms/powernv/npu-dma.c
@@ -115,7 +115,7 @@ static u64 dma_npu_get_required_mask(struct device *dev)
 	return 0;
 }
 
-static struct dma_map_ops dma_npu_ops = {
+static const struct dma_map_ops dma_npu_ops = {
 	.map_page		= dma_npu_map_page,
 	.map_sg			= dma_npu_map_sg,
 	.alloc			= dma_npu_alloc,
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index 8af1c15aef85..c81450d98794 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -701,7 +701,7 @@ static u64 ps3_dma_get_required_mask(struct device *_dev)
 	return DMA_BIT_MASK(32);
 }
 
-static struct dma_map_ops ps3_sb_dma_ops = {
+static const struct dma_map_ops ps3_sb_dma_ops = {
 	.alloc = ps3_alloc_coherent,
 	.free = ps3_free_coherent,
 	.map_sg = ps3_sb_map_sg,
@@ -712,7 +712,7 @@ static struct dma_map_ops ps3_sb_dma_ops = {
 	.unmap_page = ps3_unmap_page,
 };
 
-static struct dma_map_ops ps3_ioc0_dma_ops = {
+static const struct dma_map_ops ps3_ioc0_dma_ops = {
 	.alloc = ps3_alloc_coherent,
 	.free = ps3_free_coherent,
 	.map_sg = ps3_ioc0_map_sg,
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index 614c28537141..2e36a0b8944a 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -136,7 +136,7 @@ static u64 ibmebus_dma_get_required_mask(struct device *dev)
 	return DMA_BIT_MASK(64);
 }
 
-static struct dma_map_ops ibmebus_dma_ops = {
+static const struct dma_map_ops ibmebus_dma_ops = {
 	.alloc              = ibmebus_alloc_coherent,
 	.free               = ibmebus_free_coherent,
 	.map_sg             = ibmebus_map_sg,
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index 2c8fb3ec989e..720493932486 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -615,7 +615,7 @@ static u64 vio_dma_get_required_mask(struct device *dev)
         return dma_iommu_ops.get_required_mask(dev);
 }
 
-static struct dma_map_ops vio_dma_mapping_ops = {
+static const struct dma_map_ops vio_dma_mapping_ops = {
 	.alloc             = vio_dma_iommu_alloc_coherent,
 	.free              = vio_dma_iommu_free_coherent,
 	.mmap		   = dma_direct_mmap_coherent,
diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h
index 4a9f35e0973f..7955a9799466 100644
--- a/arch/s390/include/asm/device.h
+++ b/arch/s390/include/asm/device.h
@@ -4,7 +4,7 @@
  * This file is released under the GPLv2
  */
 struct dev_archdata {
-	struct dma_map_ops *dma_ops;
+	const struct dma_map_ops *dma_ops;
 };
 
 struct pdev_archdata {
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index ffaba07f50ab..2776d205b1ff 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -10,9 +10,9 @@
 
 #define DMA_ERROR_CODE		(~(dma_addr_t) 0x0)
 
-extern struct dma_map_ops s390_pci_dma_ops;
+extern const struct dma_map_ops s390_pci_dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	if (dev && dev->archdata.dma_ops)
 		return dev->archdata.dma_ops;
diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index 1d7a9c71944a..9081a57fa340 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -650,7 +650,7 @@ static int __init dma_debug_do_init(void)
 }
 fs_initcall(dma_debug_do_init);
 
-struct dma_map_ops s390_pci_dma_ops = {
+const struct dma_map_ops s390_pci_dma_ops = {
 	.alloc		= s390_dma_alloc,
 	.free		= s390_dma_free,
 	.map_sg		= s390_dma_map_sg,
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 0052ad40e86d..a7382c34c241 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -1,10 +1,10 @@
 #ifndef __ASM_SH_DMA_MAPPING_H
 #define __ASM_SH_DMA_MAPPING_H
 
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
 extern void no_iommu_init(void);
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return dma_ops;
 }
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 47fee3b6e29c..d24c707b2181 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -65,7 +65,7 @@ static void nommu_sync_sg(struct device *dev, struct scatterlist *sg,
 }
 #endif
 
-struct dma_map_ops nommu_dma_ops = {
+const struct dma_map_ops nommu_dma_ops = {
 	.alloc			= dma_generic_alloc_coherent,
 	.free			= dma_generic_free_coherent,
 	.map_page		= nommu_map_page,
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 92b6976fde59..d1275adfa0ef 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -22,7 +22,7 @@
 
 #define PREALLOC_DMA_DEBUG_ENTRIES	4096
 
-struct dma_map_ops *dma_ops;
+const struct dma_map_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
 static int __init dma_init(void)
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 1180ae254154..3d2babc0c4c6 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -18,13 +18,13 @@ static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	 */
 }
 
-extern struct dma_map_ops *dma_ops;
-extern struct dma_map_ops *leon_dma_ops;
-extern struct dma_map_ops pci32_dma_ops;
+extern const struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *leon_dma_ops;
+extern const struct dma_map_ops pci32_dma_ops;
 
 extern struct bus_type pci_bus_type;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 #ifdef CONFIG_SPARC_LEON
 	if (sparc_cpu_model == sparc_leon)
diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index 9df997995f6b..c63ba99ca551 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -741,7 +741,7 @@ static void dma_4u_sync_sg_for_cpu(struct device *dev,
 	spin_unlock_irqrestore(&iommu->lock, flags);
 }
 
-static struct dma_map_ops sun4u_dma_ops = {
+static const struct dma_map_ops sun4u_dma_ops = {
 	.alloc			= dma_4u_alloc_coherent,
 	.free			= dma_4u_free_coherent,
 	.map_page		= dma_4u_map_page,
@@ -752,7 +752,7 @@ static struct dma_map_ops sun4u_dma_ops = {
 	.sync_sg_for_cpu	= dma_4u_sync_sg_for_cpu,
 };
 
-struct dma_map_ops *dma_ops = &sun4u_dma_ops;
+const struct dma_map_ops *dma_ops = &sun4u_dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
 int dma_supported(struct device *dev, u64 device_mask)
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 6ffaec44931a..cf20033a1458 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -401,7 +401,7 @@ static void sbus_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
 	BUG();
 }
 
-static struct dma_map_ops sbus_dma_ops = {
+static const struct dma_map_ops sbus_dma_ops = {
 	.alloc			= sbus_alloc_coherent,
 	.free			= sbus_free_coherent,
 	.map_page		= sbus_map_page,
@@ -637,7 +637,7 @@ static void pci32_sync_sg_for_device(struct device *device, struct scatterlist *
 	}
 }
 
-struct dma_map_ops pci32_dma_ops = {
+const struct dma_map_ops pci32_dma_ops = {
 	.alloc			= pci32_alloc_coherent,
 	.free			= pci32_free_coherent,
 	.map_page		= pci32_map_page,
@@ -652,10 +652,10 @@ struct dma_map_ops pci32_dma_ops = {
 EXPORT_SYMBOL(pci32_dma_ops);
 
 /* leon re-uses pci32_dma_ops */
-struct dma_map_ops *leon_dma_ops = &pci32_dma_ops;
+const struct dma_map_ops *leon_dma_ops = &pci32_dma_ops;
 EXPORT_SYMBOL(leon_dma_ops);
 
-struct dma_map_ops *dma_ops = &sbus_dma_ops;
+const struct dma_map_ops *dma_ops = &sbus_dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
 
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index f4daccd12bf5..68bec7c97cb8 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -669,7 +669,7 @@ static void dma_4v_unmap_sg(struct device *dev, struct scatterlist *sglist,
 	local_irq_restore(flags);
 }
 
-static struct dma_map_ops sun4v_dma_ops = {
+static const struct dma_map_ops sun4v_dma_ops = {
 	.alloc				= dma_4v_alloc_coherent,
 	.free				= dma_4v_free_coherent,
 	.map_page			= dma_4v_map_page,
diff --git a/arch/tile/include/asm/device.h b/arch/tile/include/asm/device.h
index 6ab8bf146d4c..25f23ac7d361 100644
--- a/arch/tile/include/asm/device.h
+++ b/arch/tile/include/asm/device.h
@@ -18,7 +18,7 @@
 
 struct dev_archdata {
 	/* DMA operations on that device */
-        struct dma_map_ops	*dma_ops;
+        const struct dma_map_ops	*dma_ops;
 
 	/* Offset of the DMA address from the PA. */
 	dma_addr_t		dma_offset;
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 01ceb4a895b0..4a06cc75b856 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -24,12 +24,12 @@
 #define ARCH_HAS_DMA_GET_REQUIRED_MASK
 #endif
 
-extern struct dma_map_ops *tile_dma_map_ops;
-extern struct dma_map_ops *gx_pci_dma_map_ops;
-extern struct dma_map_ops *gx_legacy_pci_dma_map_ops;
-extern struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
+extern const struct dma_map_ops *tile_dma_map_ops;
+extern const struct dma_map_ops *gx_pci_dma_map_ops;
+extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
+extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	if (dev && dev->archdata.dma_ops)
 		return dev->archdata.dma_ops;
@@ -59,7 +59,7 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
 
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
-static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
+static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
 {
 	dev->archdata.dma_ops = ops;
 }
diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c
index 24e0f8c21f2f..569bb6dd154a 100644
--- a/arch/tile/kernel/pci-dma.c
+++ b/arch/tile/kernel/pci-dma.c
@@ -329,7 +329,7 @@ tile_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-static struct dma_map_ops tile_default_dma_map_ops = {
+static const struct dma_map_ops tile_default_dma_map_ops = {
 	.alloc = tile_dma_alloc_coherent,
 	.free = tile_dma_free_coherent,
 	.map_page = tile_dma_map_page,
@@ -344,7 +344,7 @@ static struct dma_map_ops tile_default_dma_map_ops = {
 	.dma_supported = tile_dma_supported
 };
 
-struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops;
+const struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops;
 EXPORT_SYMBOL(tile_dma_map_ops);
 
 /* Generic PCI DMA mapping functions */
@@ -516,7 +516,7 @@ tile_pci_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-static struct dma_map_ops tile_pci_default_dma_map_ops = {
+static const struct dma_map_ops tile_pci_default_dma_map_ops = {
 	.alloc = tile_pci_dma_alloc_coherent,
 	.free = tile_pci_dma_free_coherent,
 	.map_page = tile_pci_dma_map_page,
@@ -531,7 +531,7 @@ static struct dma_map_ops tile_pci_default_dma_map_ops = {
 	.dma_supported = tile_pci_dma_supported
 };
 
-struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops;
+const struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops;
 EXPORT_SYMBOL(gx_pci_dma_map_ops);
 
 /* PCI DMA mapping functions for legacy PCI devices */
@@ -552,7 +552,7 @@ static void tile_swiotlb_free_coherent(struct device *dev, size_t size,
 	swiotlb_free_coherent(dev, size, vaddr, dma_addr);
 }
 
-static struct dma_map_ops pci_swiotlb_dma_ops = {
+static const struct dma_map_ops pci_swiotlb_dma_ops = {
 	.alloc = tile_swiotlb_alloc_coherent,
 	.free = tile_swiotlb_free_coherent,
 	.map_page = swiotlb_map_page,
@@ -567,7 +567,7 @@ static struct dma_map_ops pci_swiotlb_dma_ops = {
 	.mapping_error = swiotlb_dma_mapping_error,
 };
 
-static struct dma_map_ops pci_hybrid_dma_ops = {
+static const struct dma_map_ops pci_hybrid_dma_ops = {
 	.alloc = tile_swiotlb_alloc_coherent,
 	.free = tile_swiotlb_free_coherent,
 	.map_page = tile_pci_dma_map_page,
@@ -582,18 +582,18 @@ static struct dma_map_ops pci_hybrid_dma_ops = {
 	.dma_supported = tile_pci_dma_supported
 };
 
-struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops;
-struct dma_map_ops *gx_hybrid_pci_dma_map_ops = &pci_hybrid_dma_ops;
+const struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops;
+const struct dma_map_ops *gx_hybrid_pci_dma_map_ops = &pci_hybrid_dma_ops;
 #else
-struct dma_map_ops *gx_legacy_pci_dma_map_ops;
-struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
+const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
+const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
 #endif
 EXPORT_SYMBOL(gx_legacy_pci_dma_map_ops);
 EXPORT_SYMBOL(gx_hybrid_pci_dma_map_ops);
 
 int dma_set_mask(struct device *dev, u64 mask)
 {
-	struct dma_map_ops *dma_ops = get_dma_ops(dev);
+	const struct dma_map_ops *dma_ops = get_dma_ops(dev);
 
 	/*
 	 * For PCI devices with 64-bit DMA addressing capability, promote
@@ -623,7 +623,7 @@ EXPORT_SYMBOL(dma_set_mask);
 #ifdef CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK
 int dma_set_coherent_mask(struct device *dev, u64 mask)
 {
-	struct dma_map_ops *dma_ops = get_dma_ops(dev);
+	const struct dma_map_ops *dma_ops = get_dma_ops(dev);
 
 	/*
 	 * For PCI devices with 64-bit DMA addressing capability, promote
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 4749854afd03..14d7729c7b73 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -21,9 +21,9 @@
 #include <asm/memory.h>
 #include <asm/cacheflush.h>
 
-extern struct dma_map_ops swiotlb_dma_map_ops;
+extern const struct dma_map_ops swiotlb_dma_map_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &swiotlb_dma_map_ops;
 }
diff --git a/arch/unicore32/mm/dma-swiotlb.c b/arch/unicore32/mm/dma-swiotlb.c
index 3e9f6489ba38..525413d6690e 100644
--- a/arch/unicore32/mm/dma-swiotlb.c
+++ b/arch/unicore32/mm/dma-swiotlb.c
@@ -31,7 +31,7 @@ static void unicore_swiotlb_free_coherent(struct device *dev, size_t size,
 	swiotlb_free_coherent(dev, size, vaddr, dma_addr);
 }
 
-struct dma_map_ops swiotlb_dma_map_ops = {
+const struct dma_map_ops swiotlb_dma_map_ops = {
 	.alloc = unicore_swiotlb_alloc_coherent,
 	.free = unicore_swiotlb_free_coherent,
 	.map_sg = swiotlb_map_sg_attrs,
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index 684ed6c3aa67..b2d0b4ced7e3 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -3,7 +3,7 @@
 
 struct dev_archdata {
 #ifdef CONFIG_X86_DEV_DMA_OPS
-	struct dma_map_ops *dma_ops;
+	const struct dma_map_ops *dma_ops;
 #endif
 #if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU)
 	void *iommu; /* hook for IOMMU specific extension */
@@ -13,7 +13,7 @@ struct dev_archdata {
 #if defined(CONFIG_X86_DEV_DMA_OPS) && defined(CONFIG_PCI_DOMAINS)
 struct dma_domain {
 	struct list_head node;
-	struct dma_map_ops *dma_ops;
+	const struct dma_map_ops *dma_ops;
 	int domain_nr;
 };
 void add_dma_domain(struct dma_domain *domain);
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 44461626830e..5e4772886a1e 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -25,9 +25,9 @@ extern int iommu_merge;
 extern struct device x86_dma_fallback_dev;
 extern int panic_on_overflow;
 
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 #ifndef CONFIG_X86_DEV_DMA_OPS
 	return dma_ops;
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index 345c99cef152..793869879464 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -1,7 +1,7 @@
 #ifndef _ASM_X86_IOMMU_H
 #define _ASM_X86_IOMMU_H
 
-extern struct dma_map_ops nommu_dma_ops;
+extern const struct dma_map_ops nommu_dma_ops;
 extern int force_iommu, no_iommu;
 extern int iommu_detected;
 extern int iommu_pass_through;
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index 63ff468a7986..82dfe32faaf4 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -695,7 +695,7 @@ static __init int init_amd_gatt(struct agp_kern_info *info)
 	return -1;
 }
 
-static struct dma_map_ops gart_dma_ops = {
+static const struct dma_map_ops gart_dma_ops = {
 	.map_sg				= gart_map_sg,
 	.unmap_sg			= gart_unmap_sg,
 	.map_page			= gart_map_page,
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 5d400ba1349d..17f180148c80 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -478,7 +478,7 @@ static void calgary_free_coherent(struct device *dev, size_t size,
 	free_pages((unsigned long)vaddr, get_order(size));
 }
 
-static struct dma_map_ops calgary_dma_ops = {
+static const struct dma_map_ops calgary_dma_ops = {
 	.alloc = calgary_alloc_coherent,
 	.free = calgary_free_coherent,
 	.map_sg = calgary_map_sg,
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index d30c37750765..76f4c039baae 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -17,7 +17,7 @@
 
 static int forbid_dac __read_mostly;
 
-struct dma_map_ops *dma_ops = &nommu_dma_ops;
+const struct dma_map_ops *dma_ops = &nommu_dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
 static int iommu_sac_force __read_mostly;
@@ -214,7 +214,7 @@ early_param("iommu", iommu_setup);
 
 int dma_supported(struct device *dev, u64 mask)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 
 #ifdef CONFIG_PCI
 	if (mask > 0xffffffff && forbid_dac > 0) {
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index 00e71ce396a8..a88952ef371c 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -88,7 +88,7 @@ static void nommu_sync_sg_for_device(struct device *dev,
 	flush_write_buffers();
 }
 
-struct dma_map_ops nommu_dma_ops = {
+const struct dma_map_ops nommu_dma_ops = {
 	.alloc			= dma_generic_alloc_coherent,
 	.free			= dma_generic_free_coherent,
 	.map_sg			= nommu_map_sg,
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 410efb2c7b80..1e23577e17cf 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -45,7 +45,7 @@ void x86_swiotlb_free_coherent(struct device *dev, size_t size,
 		dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs);
 }
 
-static struct dma_map_ops swiotlb_dma_ops = {
+static const struct dma_map_ops swiotlb_dma_ops = {
 	.mapping_error = swiotlb_dma_mapping_error,
 	.alloc = x86_swiotlb_alloc_coherent,
 	.free = x86_swiotlb_free_coherent,
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 052c1cb76305..aa3828823170 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -179,7 +179,7 @@ static void *sta2x11_swiotlb_alloc_coherent(struct device *dev,
 }
 
 /* We have our own dma_ops: the same as swiotlb but from alloc (above) */
-static struct dma_map_ops sta2x11_dma_ops = {
+static const struct dma_map_ops sta2x11_dma_ops = {
 	.alloc = sta2x11_swiotlb_alloc_coherent,
 	.free = x86_swiotlb_free_coherent,
 	.map_page = swiotlb_map_page,
diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c
index a0b36a9d5df1..42b08f8fc2ca 100644
--- a/arch/x86/xen/pci-swiotlb-xen.c
+++ b/arch/x86/xen/pci-swiotlb-xen.c
@@ -18,7 +18,7 @@
 
 int xen_swiotlb __read_mostly;
 
-static struct dma_map_ops xen_swiotlb_dma_ops = {
+static const struct dma_map_ops xen_swiotlb_dma_ops = {
 	.alloc = xen_swiotlb_alloc_coherent,
 	.free = xen_swiotlb_free_coherent,
 	.sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu,
diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h
index fe1f5c878493..a77d45d39f35 100644
--- a/arch/xtensa/include/asm/device.h
+++ b/arch/xtensa/include/asm/device.h
@@ -10,7 +10,7 @@ struct dma_map_ops;
 
 struct dev_archdata {
 	/* DMA operations on that device */
-	struct dma_map_ops *dma_ops;
+	const struct dma_map_ops *dma_ops;
 };
 
 struct pdev_archdata {
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 3fc1170a6488..50d23106cce0 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -18,9 +18,9 @@
 
 #define DMA_ERROR_CODE		(~(dma_addr_t)0x0)
 
-extern struct dma_map_ops xtensa_dma_map_ops;
+extern const struct dma_map_ops xtensa_dma_map_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	if (dev && dev->archdata.dma_ops)
 		return dev->archdata.dma_ops;
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index 70e362e6038e..ecec5265a66d 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -249,7 +249,7 @@ int xtensa_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 	return 0;
 }
 
-struct dma_map_ops xtensa_dma_map_ops = {
+const struct dma_map_ops xtensa_dma_map_ops = {
 	.alloc = xtensa_dma_alloc,
 	.free = xtensa_dma_free,
 	.map_page = xtensa_map_page,
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 3ef0f42984f2..3703fb9db419 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -117,7 +117,7 @@ static const struct iommu_ops amd_iommu_ops;
 static ATOMIC_NOTIFIER_HEAD(ppr_notifier);
 int amd_iommu_max_glx_val = -1;
 
-static struct dma_map_ops amd_iommu_dma_ops;
+static const struct dma_map_ops amd_iommu_dma_ops;
 
 /*
  * This struct contains device specific data for the IOMMU
@@ -2728,7 +2728,7 @@ static int amd_iommu_dma_supported(struct device *dev, u64 mask)
 	return check_device(dev);
 }
 
-static struct dma_map_ops amd_iommu_dma_ops = {
+static const struct dma_map_ops amd_iommu_dma_ops = {
 	.alloc		= alloc_coherent,
 	.free		= free_coherent,
 	.map_page	= map_page,
diff --git a/drivers/misc/mic/bus/mic_bus.c b/drivers/misc/mic/bus/mic_bus.c
index be37890abb93..c4b27a25662a 100644
--- a/drivers/misc/mic/bus/mic_bus.c
+++ b/drivers/misc/mic/bus/mic_bus.c
@@ -143,7 +143,7 @@ static void mbus_release_dev(struct device *d)
 }
 
 struct mbus_device *
-mbus_register_device(struct device *pdev, int id, struct dma_map_ops *dma_ops,
+mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ops,
 		     struct mbus_hw_ops *hw_ops, int index,
 		     void __iomem *mmio_va)
 {
diff --git a/drivers/misc/mic/bus/scif_bus.c b/drivers/misc/mic/bus/scif_bus.c
index ff6e01c25810..e5d377e97c86 100644
--- a/drivers/misc/mic/bus/scif_bus.c
+++ b/drivers/misc/mic/bus/scif_bus.c
@@ -138,7 +138,7 @@ static void scif_release_dev(struct device *d)
 }
 
 struct scif_hw_dev *
-scif_register_device(struct device *pdev, int id, struct dma_map_ops *dma_ops,
+scif_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ops,
 		     struct scif_hw_ops *hw_ops, u8 dnode, u8 snode,
 		     struct mic_mw *mmio, struct mic_mw *aper, void *dp,
 		     void __iomem *rdp, struct dma_chan **chan, int num_chan,
diff --git a/drivers/misc/mic/bus/scif_bus.h b/drivers/misc/mic/bus/scif_bus.h
index 94f29ac608b6..ff59568219ad 100644
--- a/drivers/misc/mic/bus/scif_bus.h
+++ b/drivers/misc/mic/bus/scif_bus.h
@@ -113,7 +113,7 @@ int scif_register_driver(struct scif_driver *driver);
 void scif_unregister_driver(struct scif_driver *driver);
 struct scif_hw_dev *
 scif_register_device(struct device *pdev, int id,
-		     struct dma_map_ops *dma_ops,
+		     const struct dma_map_ops *dma_ops,
 		     struct scif_hw_ops *hw_ops, u8 dnode, u8 snode,
 		     struct mic_mw *mmio, struct mic_mw *aper,
 		     void *dp, void __iomem *rdp,
diff --git a/drivers/misc/mic/bus/vop_bus.c b/drivers/misc/mic/bus/vop_bus.c
index 303da222f5b6..b59551f5db65 100644
--- a/drivers/misc/mic/bus/vop_bus.c
+++ b/drivers/misc/mic/bus/vop_bus.c
@@ -154,7 +154,7 @@ vop_register_device(struct device *pdev, int id,
 	vdev->dev.parent = pdev;
 	vdev->id.device = id;
 	vdev->id.vendor = VOP_DEV_ANY_ID;
-	vdev->dev.archdata.dma_ops = (struct dma_map_ops *)dma_ops;
+	vdev->dev.archdata.dma_ops = (const struct dma_map_ops *)dma_ops;
 	vdev->dev.dma_mask = &vdev->dev.coherent_dma_mask;
 	dma_set_mask(&vdev->dev, DMA_BIT_MASK(64));
 	vdev->dev.release = vop_release_dev;
diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c
index 9599d732aff3..c327985c9523 100644
--- a/drivers/misc/mic/host/mic_boot.c
+++ b/drivers/misc/mic/host/mic_boot.c
@@ -245,7 +245,7 @@ static void __mic_dma_unmap_sg(struct device *dev,
 	dma_unmap_sg(&mdev->pdev->dev, sg, nents, dir);
 }
 
-static struct dma_map_ops __mic_dma_ops = {
+static const struct dma_map_ops __mic_dma_ops = {
 	.alloc = __mic_dma_alloc,
 	.free = __mic_dma_free,
 	.map_page = __mic_dma_map_page,
@@ -344,7 +344,7 @@ mic_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
 	mic_unmap_single(mdev, dma_addr, size);
 }
 
-static struct dma_map_ops mic_dma_ops = {
+static const struct dma_map_ops mic_dma_ops = {
 	.map_page = mic_dma_map_page,
 	.unmap_page = mic_dma_unmap_page,
 };
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 553ef8a5d588..aeb073b5fe16 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1011,7 +1011,7 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
 }
 
-static struct dma_map_ops ccio_ops = {
+static const struct dma_map_ops ccio_ops = {
 	.dma_supported =	ccio_dma_supported,
 	.alloc =		ccio_alloc,
 	.free =			ccio_free,
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 151b86b6d2e2..33385e574433 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1069,7 +1069,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 
 }
 
-static struct dma_map_ops sba_ops = {
+static const struct dma_map_ops sba_ops = {
 	.dma_supported =	sba_dma_supported,
 	.alloc =		sba_alloc,
 	.free =			sba_free,
diff --git a/drivers/pci/host/vmd.c b/drivers/pci/host/vmd.c
index 18ef1a93c10a..e27ad2a3bd33 100644
--- a/drivers/pci/host/vmd.c
+++ b/drivers/pci/host/vmd.c
@@ -282,7 +282,7 @@ static struct device *to_vmd_dev(struct device *dev)
 	return &vmd->dev->dev;
 }
 
-static struct dma_map_ops *vmd_dma_ops(struct device *dev)
+static const struct dma_map_ops *vmd_dma_ops(struct device *dev)
 {
 	return get_dma_ops(to_vmd_dev(dev));
 }
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 10c5a17b1f51..f1da68b82c63 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -127,7 +127,7 @@ struct dma_map_ops {
 	int is_phys;
 };
 
-extern struct dma_map_ops dma_noop_ops;
+extern const struct dma_map_ops dma_noop_ops;
 
 #define DMA_BIT_MASK(n)	(((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
 
@@ -170,8 +170,8 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
  * dma dependent code.  Code that depends on the dma-mapping
  * API needs to set 'depends on HAS_DMA' in its Kconfig
  */
-extern struct dma_map_ops bad_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+extern const struct dma_map_ops bad_dma_ops;
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	return &bad_dma_ops;
 }
@@ -182,7 +182,7 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev, void *ptr,
 					      enum dma_data_direction dir,
 					      unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 	dma_addr_t addr;
 
 	kmemcheck_mark_initialized(ptr, size);
@@ -201,7 +201,7 @@ static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t addr,
 					  enum dma_data_direction dir,
 					  unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 
 	BUG_ON(!valid_dma_direction(dir));
 	if (ops->unmap_page)
@@ -217,7 +217,7 @@ static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
 				   int nents, enum dma_data_direction dir,
 				   unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 	int i, ents;
 	struct scatterlist *s;
 
@@ -235,7 +235,7 @@ static inline void dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sg
 				      int nents, enum dma_data_direction dir,
 				      unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 
 	BUG_ON(!valid_dma_direction(dir));
 	debug_dma_unmap_sg(dev, sg, nents, dir);
@@ -249,7 +249,7 @@ static inline dma_addr_t dma_map_page_attrs(struct device *dev,
 					    enum dma_data_direction dir,
 					    unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 	dma_addr_t addr;
 
 	kmemcheck_mark_initialized(page_address(page) + offset, size);
@@ -265,7 +265,7 @@ static inline void dma_unmap_page_attrs(struct device *dev,
 					enum dma_data_direction dir,
 					unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 
 	BUG_ON(!valid_dma_direction(dir));
 	if (ops->unmap_page)
@@ -279,7 +279,7 @@ static inline dma_addr_t dma_map_resource(struct device *dev,
 					  enum dma_data_direction dir,
 					  unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 	dma_addr_t addr;
 
 	BUG_ON(!valid_dma_direction(dir));
@@ -300,7 +300,7 @@ static inline void dma_unmap_resource(struct device *dev, dma_addr_t addr,
 				      size_t size, enum dma_data_direction dir,
 				      unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 
 	BUG_ON(!valid_dma_direction(dir));
 	if (ops->unmap_resource)
@@ -312,7 +312,7 @@ static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t addr,
 					   size_t size,
 					   enum dma_data_direction dir)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 
 	BUG_ON(!valid_dma_direction(dir));
 	if (ops->sync_single_for_cpu)
@@ -324,7 +324,7 @@ static inline void dma_sync_single_for_device(struct device *dev,
 					      dma_addr_t addr, size_t size,
 					      enum dma_data_direction dir)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 
 	BUG_ON(!valid_dma_direction(dir));
 	if (ops->sync_single_for_device)
@@ -364,7 +364,7 @@ static inline void
 dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
 		    int nelems, enum dma_data_direction dir)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 
 	BUG_ON(!valid_dma_direction(dir));
 	if (ops->sync_sg_for_cpu)
@@ -376,7 +376,7 @@ static inline void
 dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
 		       int nelems, enum dma_data_direction dir)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 
 	BUG_ON(!valid_dma_direction(dir));
 	if (ops->sync_sg_for_device)
@@ -421,7 +421,7 @@ static inline int
 dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma, void *cpu_addr,
 	       dma_addr_t dma_addr, size_t size, unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 	BUG_ON(!ops);
 	if (ops->mmap)
 		return ops->mmap(dev, vma, cpu_addr, dma_addr, size, attrs);
@@ -439,7 +439,7 @@ dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, void *cpu_addr,
 		      dma_addr_t dma_addr, size_t size,
 		      unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 	BUG_ON(!ops);
 	if (ops->get_sgtable)
 		return ops->get_sgtable(dev, sgt, cpu_addr, dma_addr, size,
@@ -457,7 +457,7 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
 				       dma_addr_t *dma_handle, gfp_t flag,
 				       unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 	void *cpu_addr;
 
 	BUG_ON(!ops);
@@ -479,7 +479,7 @@ static inline void dma_free_attrs(struct device *dev, size_t size,
 				     void *cpu_addr, dma_addr_t dma_handle,
 				     unsigned long attrs)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 
 	BUG_ON(!ops);
 	WARN_ON(irqs_disabled());
@@ -537,7 +537,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 #ifndef HAVE_ARCH_DMA_SUPPORTED
 static inline int dma_supported(struct device *dev, u64 mask)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 
 	if (!ops)
 		return 0;
@@ -550,7 +550,7 @@ static inline int dma_supported(struct device *dev, u64 mask)
 #ifndef HAVE_ARCH_DMA_SET_MASK
 static inline int dma_set_mask(struct device *dev, u64 mask)
 {
-	struct dma_map_ops *ops = get_dma_ops(dev);
+	const struct dma_map_ops *ops = get_dma_ops(dev);
 
 	if (ops->set_dma_mask)
 		return ops->set_dma_mask(dev, mask);
diff --git a/include/linux/mic_bus.h b/include/linux/mic_bus.h
index 27d7c95fd0da..504d54c71bdb 100644
--- a/include/linux/mic_bus.h
+++ b/include/linux/mic_bus.h
@@ -90,7 +90,7 @@ struct mbus_hw_ops {
 };
 
 struct mbus_device *
-mbus_register_device(struct device *pdev, int id, struct dma_map_ops *dma_ops,
+mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ops,
 		     struct mbus_hw_ops *hw_ops, int index,
 		     void __iomem *mmio_va);
 void mbus_unregister_device(struct mbus_device *mbdev);
diff --git a/include/xen/arm/hypervisor.h b/include/xen/arm/hypervisor.h
index 95251512e2c4..44b587b49904 100644
--- a/include/xen/arm/hypervisor.h
+++ b/include/xen/arm/hypervisor.h
@@ -18,7 +18,7 @@ static inline enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
 	return PARAVIRT_LAZY_NONE;
 }
 
-extern struct dma_map_ops *xen_dma_ops;
+extern const struct dma_map_ops *xen_dma_ops;
 
 #ifdef CONFIG_XEN
 void __init xen_early_init(void);
diff --git a/lib/dma-noop.c b/lib/dma-noop.c
index 3d766e78fbe2..65e49dd35b7b 100644
--- a/lib/dma-noop.c
+++ b/lib/dma-noop.c
@@ -64,7 +64,7 @@ static int dma_noop_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-struct dma_map_ops dma_noop_ops = {
+const struct dma_map_ops dma_noop_ops = {
 	.alloc			= dma_noop_alloc,
 	.free			= dma_noop_free,
 	.map_page		= dma_noop_map_page,
-- 
2.11.0




From - Thu Nov 08 21:39:28 2018
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From: Bart Van Assche <bart.vanassche@sandisk.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.drivers.rdma,gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.ports.sh.devel,gmane.linux.kernel.arc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc
Subject: [PATCH 2/9] Move dma_ops from archdata into struct device
Date: Tue, 10 Jan 2017 16:56:41 -0800
Lines: 1079
Approved: news@gmane.org
Message-ID: <20170111005648.14988-3-bart.vanassche@sandisk.com>
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To: Doug Ledford <dledford@redhat.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/57423>

Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
transfer data between memory and PCIe adapter. Because of performance
reasons it is important that the CPU cache is not flushed when such
drivers transfer data. Make this possible by allowing these drivers to
override the dma_map_ops pointer. Additionally, introduce the function
set_dma_ops() that will be used by a later patch in this series.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: David Howells <dhowells@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Geoff Levand <geoff@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Muli Ben-Yehuda <mulix@mulix.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: x86@kernel.org
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: iommu@lists.linux-foundation.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-am33-list@redhat.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-cris-kernel@axis.com
Cc: linux-hexagon@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-metag@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-rdma@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: nios2-dev@lists.rocketboards.org
Cc: openrisc@lists.librecores.org
Cc: sparclinux@vger.kernel.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
---
 arch/alpha/include/asm/dma-mapping.h      |  2 +-
 arch/arc/include/asm/dma-mapping.h        |  2 +-
 arch/arm/include/asm/device.h             |  1 -
 arch/arm/include/asm/dma-mapping.h        | 17 ++++-------------
 arch/arm64/include/asm/device.h           |  1 -
 arch/arm64/include/asm/dma-mapping.h      |  8 ++++----
 arch/arm64/mm/dma-mapping.c               |  8 ++++----
 arch/avr32/include/asm/dma-mapping.h      |  2 +-
 arch/blackfin/include/asm/dma-mapping.h   |  2 +-
 arch/c6x/include/asm/dma-mapping.h        |  2 +-
 arch/cris/include/asm/dma-mapping.h       |  4 ++--
 arch/frv/include/asm/dma-mapping.h        |  2 +-
 arch/h8300/include/asm/dma-mapping.h      |  2 +-
 arch/hexagon/include/asm/dma-mapping.h    |  5 +----
 arch/ia64/include/asm/dma-mapping.h       |  5 ++++-
 arch/m32r/include/asm/dma-mapping.h       |  4 +---
 arch/m68k/include/asm/dma-mapping.h       |  2 +-
 arch/metag/include/asm/dma-mapping.h      |  2 +-
 arch/microblaze/include/asm/dma-mapping.h |  2 +-
 arch/mips/include/asm/device.h            |  5 -----
 arch/mips/include/asm/dma-mapping.h       |  7 ++-----
 arch/mips/pci/pci-octeon.c                |  2 +-
 arch/mn10300/include/asm/dma-mapping.h    |  2 +-
 arch/nios2/include/asm/dma-mapping.h      |  2 +-
 arch/openrisc/include/asm/dma-mapping.h   |  2 +-
 arch/parisc/include/asm/dma-mapping.h     |  2 +-
 arch/powerpc/include/asm/device.h         |  4 ----
 arch/powerpc/include/asm/dma-mapping.h    | 17 ++---------------
 arch/powerpc/include/asm/ps3.h            |  2 +-
 arch/powerpc/kernel/dma.c                 |  2 +-
 arch/powerpc/platforms/cell/iommu.c       |  2 +-
 arch/powerpc/platforms/pasemi/iommu.c     |  2 +-
 arch/powerpc/platforms/pasemi/setup.c     |  2 +-
 arch/powerpc/platforms/ps3/system-bus.c   |  4 ++--
 arch/powerpc/platforms/pseries/ibmebus.c  |  2 +-
 arch/s390/include/asm/device.h            |  1 -
 arch/s390/include/asm/dma-mapping.h       |  4 +---
 arch/s390/pci/pci.c                       |  2 +-
 arch/sh/include/asm/dma-mapping.h         |  2 +-
 arch/sparc/include/asm/dma-mapping.h      |  4 ++--
 arch/tile/include/asm/device.h            |  3 ---
 arch/tile/include/asm/dma-mapping.h       | 12 ++----------
 arch/x86/include/asm/device.h             |  3 ---
 arch/x86/include/asm/dma-mapping.h        |  9 +--------
 arch/x86/kernel/pci-calgary_64.c          |  4 ++--
 arch/x86/pci/common.c                     |  2 +-
 arch/x86/pci/sta2x11-fixup.c              |  8 ++++----
 arch/xtensa/include/asm/device.h          |  4 ----
 arch/xtensa/include/asm/dma-mapping.h     |  7 ++-----
 drivers/infiniband/ulp/srpt/ib_srpt.c     |  2 +-
 drivers/iommu/amd_iommu.c                 |  6 +++---
 drivers/misc/mic/bus/mic_bus.c            |  2 +-
 drivers/misc/mic/bus/scif_bus.c           |  2 +-
 drivers/misc/mic/bus/vop_bus.c            |  2 +-
 include/linux/device.h                    |  2 ++
 include/linux/dma-mapping.h               | 12 ++++++++++++
 56 files changed, 85 insertions(+), 140 deletions(-)

diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index d3480562411d..5d53666935e6 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
 
 extern const struct dma_map_ops *dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return dma_ops;
 }
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index fdff3aa60052..94285031c4fb 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -20,7 +20,7 @@
 
 extern const struct dma_map_ops arc_dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &arc_dma_ops;
 }
diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h
index d8a572f9c187..220ba207be91 100644
--- a/arch/arm/include/asm/device.h
+++ b/arch/arm/include/asm/device.h
@@ -7,7 +7,6 @@
 #define ASMARM_DEVICE_H
 
 struct dev_archdata {
-	const struct dma_map_ops	*dma_ops;
 #ifdef CONFIG_DMABOUNCE
 	struct dmabounce_device_info *dmabounce;
 #endif
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 1aabd781306f..7c6d995fb935 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -18,23 +18,14 @@ extern const struct dma_map_ops arm_coherent_dma_ops;
 
 static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
 {
-	if (dev && dev->archdata.dma_ops)
-		return dev->archdata.dma_ops;
+	if (dev && dev->dma_ops)
+		return dev->dma_ops;
 	return &arm_dma_ops;
 }
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	if (xen_initial_domain())
-		return xen_dma_ops;
-	else
-		return __generic_dma_ops(dev);
-}
-
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
-	BUG_ON(!dev);
-	dev->archdata.dma_ops = ops;
+	return xen_initial_domain() ? xen_dma_ops : &arm_dma_ops;
 }
 
 #define HAVE_ARCH_DMA_SUPPORTED 1
diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h
index 00c678cc31e1..73d5bab015eb 100644
--- a/arch/arm64/include/asm/device.h
+++ b/arch/arm64/include/asm/device.h
@@ -17,7 +17,6 @@
 #define __ASM_DEVICE_H
 
 struct dev_archdata {
-	const struct dma_map_ops *dma_ops;
 #ifdef CONFIG_IOMMU_API
 	void *iommu;			/* private IOMMU data */
 #endif
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 1fedb43be712..ff311c67ab0c 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -29,8 +29,8 @@ extern const struct dma_map_ops dummy_dma_ops;
 
 static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
 {
-	if (dev && dev->archdata.dma_ops)
-		return dev->archdata.dma_ops;
+       if (dev && dev->dma_ops)
+               return dev->dma_ops;
 
 	/*
 	 * We expect no ISA devices, and all other DMA masters are expected to
@@ -39,12 +39,12 @@ static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
 	return &dummy_dma_ops;
 }
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	if (xen_initial_domain())
 		return xen_dma_ops;
 	else
-		return __generic_dma_ops(dev);
+		return __generic_dma_ops(NULL);
 }
 
 void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index bcef6368d48f..9c80a3cbce59 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -837,7 +837,7 @@ static bool do_iommu_attach(struct device *dev, const struct iommu_ops *ops,
 		return false;
 	}
 
-	dev->archdata.dma_ops = &iommu_dma_ops;
+	set_dma_ops(dev, &iommu_dma_ops);
 	return true;
 }
 
@@ -941,7 +941,7 @@ static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 
 void arch_teardown_dma_ops(struct device *dev)
 {
-	dev->archdata.dma_ops = NULL;
+	set_dma_ops(dev, NULL);
 }
 
 #else
@@ -955,8 +955,8 @@ static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 			const struct iommu_ops *iommu, bool coherent)
 {
-	if (!dev->archdata.dma_ops)
-		dev->archdata.dma_ops = &swiotlb_dma_ops;
+	if (!dev->dma_ops)
+		set_dma_ops(dev, &swiotlb_dma_ops);
 
 	dev->archdata.dma_coherent = coherent;
 	__iommu_setup_dma_ops(dev, dma_base, size, iommu);
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index b2b43c0e0774..7388451f9905 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -6,7 +6,7 @@ extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 
 extern const struct dma_map_ops avr32_dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &avr32_dma_ops;
 }
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index 320fb50fbd41..04254ac36bed 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -38,7 +38,7 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir)
 
 extern const struct dma_map_ops bfin_dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &bfin_dma_ops;
 }
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index 88258b9ebc8e..aca9f755e4f8 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -19,7 +19,7 @@
 
 extern const struct dma_map_ops c6x_dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &c6x_dma_ops;
 }
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index aae4fbc0a656..256169de3743 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -4,12 +4,12 @@
 #ifdef CONFIG_PCI
 extern const struct dma_map_ops v32_dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &v32_dma_ops;
 }
 #else
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	BUG();
 	return NULL;
diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 150cc00544a8..354900917585 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -9,7 +9,7 @@ extern unsigned long __nongprelbss dma_coherent_mem_end;
 
 extern const struct dma_map_ops frv_dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &frv_dma_ops;
 }
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
index f804bca4c13f..847c7562e046 100644
--- a/arch/h8300/include/asm/dma-mapping.h
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
 
 extern const struct dma_map_ops h8300_dma_map_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &h8300_dma_map_ops;
 }
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index b812e917cd95..d3a87bd9b686 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -34,11 +34,8 @@ extern int bad_dma_address;
 
 extern const struct dma_map_ops *dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	if (unlikely(dev == NULL))
-		return NULL;
-
 	return dma_ops;
 }
 
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index 05e467d56d86..73ec3c6f4cfe 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -23,7 +23,10 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
 extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
 				enum dma_data_direction);
 
-#define get_dma_ops(dev) platform_dma_get_ops(dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
+{
+	return platform_dma_get_ops(NULL);
+}
 
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 99c43d2f05dc..c01d9f52d228 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -10,10 +10,8 @@
 
 #define DMA_ERROR_CODE (~(dma_addr_t)0x0)
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	if (dev && dev->archdata.dma_ops)
-		return dev->archdata.dma_ops;
 	return &dma_noop_ops;
 }
 
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 863509939d5a..9210e470771b 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
 
 extern const struct dma_map_ops m68k_dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
         return &m68k_dma_ops;
 }
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index c156a7ac732f..fad3dc3cb210 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
 
 extern const struct dma_map_ops metag_dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &metag_dma_ops;
 }
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index c7faf2fb51d6..3fad5e722a66 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -38,7 +38,7 @@
  */
 extern const struct dma_map_ops dma_direct_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &dma_direct_ops;
 }
diff --git a/arch/mips/include/asm/device.h b/arch/mips/include/asm/device.h
index ebc5c1265473..6aa796f1081a 100644
--- a/arch/mips/include/asm/device.h
+++ b/arch/mips/include/asm/device.h
@@ -6,12 +6,7 @@
 #ifndef _ASM_MIPS_DEVICE_H
 #define _ASM_MIPS_DEVICE_H
 
-struct dma_map_ops;
-
 struct dev_archdata {
-	/* DMA operations on that device */
-	const struct dma_map_ops *dma_ops;
-
 #ifdef CONFIG_DMA_PERDEV_COHERENT
 	/* Non-zero if DMA is coherent with CPU caches */
 	bool dma_coherent;
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index b59b084a7569..aba71385f9d1 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -11,12 +11,9 @@
 
 extern const struct dma_map_ops *mips_dma_map_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	if (dev && dev->archdata.dma_ops)
-		return dev->archdata.dma_ops;
-	else
-		return mips_dma_map_ops;
+	return mips_dma_map_ops;
 }
 
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c
index 308d051fc45c..7da99a908229 100644
--- a/arch/mips/pci/pci-octeon.c
+++ b/arch/mips/pci/pci-octeon.c
@@ -167,7 +167,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
 		pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, dconfig);
 	}
 
-	dev->dev.archdata.dma_ops = octeon_pci_dma_map_ops;
+	set_dma_ops(&dev->dev, octeon_pci_dma_map_ops);
 
 	return 0;
 }
diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index 564e3927e005..737ef574b3ea 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -16,7 +16,7 @@
 
 extern const struct dma_map_ops mn10300_dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &mn10300_dma_ops;
 }
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index aa00d839a64b..7b3c6f280293 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -12,7 +12,7 @@
 
 extern const struct dma_map_ops nios2_dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &nios2_dma_ops;
 }
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index 88acbedb4947..0c0075f17145 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -30,7 +30,7 @@
 
 extern const struct dma_map_ops or1k_dma_map_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &or1k_dma_map_ops;
 }
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 1749073e44fc..5404c6a726b2 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -27,7 +27,7 @@ extern const struct dma_map_ops pcx_dma_ops;
 
 extern const struct dma_map_ops *hppa_dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return hppa_dma_ops;
 }
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h
index 49cbb0fca233..0245bfcaac32 100644
--- a/arch/powerpc/include/asm/device.h
+++ b/arch/powerpc/include/asm/device.h
@@ -6,7 +6,6 @@
 #ifndef _ASM_POWERPC_DEVICE_H
 #define _ASM_POWERPC_DEVICE_H
 
-struct dma_map_ops;
 struct device_node;
 #ifdef CONFIG_PPC64
 struct pci_dn;
@@ -20,9 +19,6 @@ struct iommu_table;
  * drivers/macintosh/macio_asic.c
  */
 struct dev_archdata {
-	/* DMA operations on that device */
-	const struct dma_map_ops	*dma_ops;
-
 	/*
 	 * These two used to be a union. However, with the hybrid ops we need
 	 * both so here we store both a DMA offset for direct mappings and
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 2ec3eadf336f..efdcf87c4c2f 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -78,22 +78,9 @@ extern struct dma_map_ops dma_iommu_ops;
 #endif
 extern const struct dma_map_ops dma_direct_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	/* We don't handle the NULL dev case for ISA for now. We could
-	 * do it via an out of line call but it is not needed for now. The
-	 * only ISA DMA device we support is the floppy and we have a hack
-	 * in the floppy driver directly to get a device for us.
-	 */
-	if (unlikely(dev == NULL))
-		return NULL;
-
-	return dev->archdata.dma_ops;
-}
-
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
-	dev->archdata.dma_ops = ops;
+	return NULL;
 }
 
 /*
diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
index a19f831a4cc9..17ee719e799f 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -435,7 +435,7 @@ static inline void *ps3_system_bus_get_drvdata(
 	return dev_get_drvdata(&dev->core);
 }
 
-/* These two need global scope for get_dma_ops(). */
+/* These two need global scope for get_arch_dma_ops(). */
 
 extern struct bus_type ps3_system_bus_type;
 
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 03b98f1f98ec..41c749586bd2 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -33,7 +33,7 @@ static u64 __maybe_unused get_pfn_limit(struct device *dev)
 	struct dev_archdata __maybe_unused *sd = &dev->archdata;
 
 #ifdef CONFIG_SWIOTLB
-	if (sd->max_direct_dma_addr && sd->dma_ops == &swiotlb_dma_ops)
+	if (sd->max_direct_dma_addr && dev->dma_ops == &swiotlb_dma_ops)
 		pfn = min_t(u64, pfn, sd->max_direct_dma_addr >> PAGE_SHIFT);
 #endif
 
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index e1413e69e5fe..592a2a0f4860 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -692,7 +692,7 @@ static int cell_of_bus_notify(struct notifier_block *nb, unsigned long action,
 		return 0;
 
 	/* We use the PCI DMA ops */
-	dev->archdata.dma_ops = get_pci_dma_ops();
+	set_dma_ops(dev, get_pci_dma_ops());
 
 	cell_dma_dev_setup(dev);
 
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index e74adc4e7fd8..66bf56788260 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -186,7 +186,7 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev)
 	 */
 	if (dev->vendor == 0x1959 && dev->device == 0xa007 &&
 	    !firmware_has_feature(FW_FEATURE_LPAR)) {
-		dev->dev.archdata.dma_ops = &dma_direct_ops;
+		set_dma_ops(&dev->dev, &dma_direct_ops);
 		/*
 		 * Set the coherent DMA mask to prevent the iommu
 		 * being used unnecessarily
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index 3182400cf48f..a00412d369f8 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -363,7 +363,7 @@ static int pcmcia_notify(struct notifier_block *nb, unsigned long action,
 		return 0;
 
 	/* We use the direct ops for localbus */
-	dev->archdata.dma_ops = &dma_direct_ops;
+	set_dma_ops(dev, &dma_direct_ops);
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index c81450d98794..b78041049146 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -756,11 +756,11 @@ int ps3_system_bus_device_register(struct ps3_system_bus_device *dev)
 
 	switch (dev->dev_type) {
 	case PS3_DEVICE_TYPE_IOC0:
-		dev->core.archdata.dma_ops = &ps3_ioc0_dma_ops;
+		set_dma_ops(&dev->core, &ps3_ioc0_dma_ops);
 		dev_set_name(&dev->core, "ioc0_%02x", ++dev_ioc0_count);
 		break;
 	case PS3_DEVICE_TYPE_SB:
-		dev->core.archdata.dma_ops = &ps3_sb_dma_ops;
+		set_dma_ops(&dev->core, &ps3_sb_dma_ops);
 		dev_set_name(&dev->core, "sb_%02x", ++dev_sb_count);
 
 		break;
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index 2e36a0b8944a..05063fd9b05f 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -169,7 +169,7 @@ static int ibmebus_create_device(struct device_node *dn)
 		return -ENOMEM;
 
 	dev->dev.bus = &ibmebus_bus_type;
-	dev->dev.archdata.dma_ops = &ibmebus_dma_ops;
+	set_dma_ops(&dev->dev, &ibmebus_dma_ops);
 
 	ret = of_device_add(dev);
 	if (ret)
diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h
index 7955a9799466..5203fc87f080 100644
--- a/arch/s390/include/asm/device.h
+++ b/arch/s390/include/asm/device.h
@@ -4,7 +4,6 @@
  * This file is released under the GPLv2
  */
 struct dev_archdata {
-	const struct dma_map_ops *dma_ops;
 };
 
 struct pdev_archdata {
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 2776d205b1ff..3108b8dbe266 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -12,10 +12,8 @@
 
 extern const struct dma_map_ops s390_pci_dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	if (dev && dev->archdata.dma_ops)
-		return dev->archdata.dma_ops;
 	return &dma_noop_ops;
 }
 
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 38e17d4d9884..5b4177d8f4c3 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -641,7 +641,7 @@ int pcibios_add_device(struct pci_dev *pdev)
 	int i;
 
 	pdev->dev.groups = zpci_attr_groups;
-	pdev->dev.archdata.dma_ops = &s390_pci_dma_ops;
+	set_dma_ops(&pdev->dev, &s390_pci_dma_ops);
 	zpci_map_resources(pdev);
 
 	for (i = 0; i < PCI_BAR_COUNT; i++) {
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index a7382c34c241..d99008af5f73 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -4,7 +4,7 @@
 extern const struct dma_map_ops *dma_ops;
 extern void no_iommu_init(void);
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return dma_ops;
 }
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 3d2babc0c4c6..69cc627779f2 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -24,14 +24,14 @@ extern const struct dma_map_ops pci32_dma_ops;
 
 extern struct bus_type pci_bus_type;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 #ifdef CONFIG_SPARC_LEON
 	if (sparc_cpu_model == sparc_leon)
 		return leon_dma_ops;
 #endif
 #if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
-	if (dev->bus == &pci_bus_type)
+	if (bus == &pci_bus_type)
 		return &pci32_dma_ops;
 #endif
 	return dma_ops;
diff --git a/arch/tile/include/asm/device.h b/arch/tile/include/asm/device.h
index 25f23ac7d361..1cf45422a0df 100644
--- a/arch/tile/include/asm/device.h
+++ b/arch/tile/include/asm/device.h
@@ -17,9 +17,6 @@
 #define _ASM_TILE_DEVICE_H
 
 struct dev_archdata {
-	/* DMA operations on that device */
-        const struct dma_map_ops	*dma_ops;
-
 	/* Offset of the DMA address from the PA. */
 	dma_addr_t		dma_offset;
 
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 4a06cc75b856..bbc71a29b2c6 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -29,12 +29,9 @@ extern const struct dma_map_ops *gx_pci_dma_map_ops;
 extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
 extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	if (dev && dev->archdata.dma_ops)
-		return dev->archdata.dma_ops;
-	else
-		return tile_dma_map_ops;
+	return tile_dma_map_ops;
 }
 
 static inline dma_addr_t get_dma_offset(struct device *dev)
@@ -59,11 +56,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
 
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
-	dev->archdata.dma_ops = ops;
-}
-
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
 	if (!dev->dma_mask)
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index b2d0b4ced7e3..1b3ef26e77df 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -2,9 +2,6 @@
 #define _ASM_X86_DEVICE_H
 
 struct dev_archdata {
-#ifdef CONFIG_X86_DEV_DMA_OPS
-	const struct dma_map_ops *dma_ops;
-#endif
 #if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU)
 	void *iommu; /* hook for IOMMU specific extension */
 #endif
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 5e4772886a1e..08a0838b83fb 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -27,16 +27,9 @@ extern int panic_on_overflow;
 
 extern const struct dma_map_ops *dma_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-#ifndef CONFIG_X86_DEV_DMA_OPS
 	return dma_ops;
-#else
-	if (unlikely(!dev) || !dev->archdata.dma_ops)
-		return dma_ops;
-	else
-		return dev->archdata.dma_ops;
-#endif
 }
 
 bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 17f180148c80..87f9a1ff7cf6 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1177,7 +1177,7 @@ static int __init calgary_init(void)
 		tbl = find_iommu_table(&dev->dev);
 
 		if (translation_enabled(tbl))
-			dev->dev.archdata.dma_ops = &calgary_dma_ops;
+			set_dma_ops(&dev->dev, &calgary_dma_ops);
 	}
 
 	return ret;
@@ -1201,7 +1201,7 @@ static int __init calgary_init(void)
 		calgary_disable_translation(dev);
 		calgary_free_bus(dev);
 		pci_dev_put(dev); /* Undo calgary_init_one()'s pci_dev_get() */
-		dev->dev.archdata.dma_ops = NULL;
+		set_dma_ops(&dev->dev, NULL);
 	} while (1);
 
 	return ret;
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index a4fdfa7dcc1b..944e13c1a1e4 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -667,7 +667,7 @@ static void set_dma_domain_ops(struct pci_dev *pdev)
 	spin_lock(&dma_domain_list_lock);
 	list_for_each_entry(domain, &dma_domain_list, node) {
 		if (pci_domain_nr(pdev->bus) == domain->domain_nr) {
-			pdev->dev.archdata.dma_ops = domain->dma_ops;
+			set_dma_ops(&pdev->dev, domain->dma_ops);
 			break;
 		}
 	}
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index aa3828823170..21008548f225 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -203,7 +203,7 @@ static void sta2x11_setup_pdev(struct pci_dev *pdev)
 		return;
 	pci_set_consistent_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
 	pci_set_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
-	pdev->dev.archdata.dma_ops = &sta2x11_dma_ops;
+	set_dma_ops(&pdev->dev, &sta2x11_dma_ops);
 
 	/* We must enable all devices as master, for audio DMA to work */
 	pci_set_master(pdev);
@@ -223,7 +223,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
 	struct sta2x11_mapping *map;
 
-	if (dev->archdata.dma_ops != &sta2x11_dma_ops) {
+	if (dev->dma_ops != &sta2x11_dma_ops) {
 		if (!dev->dma_mask)
 			return false;
 		return addr + size - 1 <= *dev->dma_mask;
@@ -247,7 +247,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
  */
 dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
-	if (dev->archdata.dma_ops != &sta2x11_dma_ops)
+	if (dev->dma_ops != &sta2x11_dma_ops)
 		return paddr;
 	return p2a(paddr, to_pci_dev(dev));
 }
@@ -259,7 +259,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
  */
 phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
 {
-	if (dev->archdata.dma_ops != &sta2x11_dma_ops)
+	if (dev->dma_ops != &sta2x11_dma_ops)
 		return daddr;
 	return a2p(daddr, to_pci_dev(dev));
 }
diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h
index a77d45d39f35..1deeb8ebbb1b 100644
--- a/arch/xtensa/include/asm/device.h
+++ b/arch/xtensa/include/asm/device.h
@@ -6,11 +6,7 @@
 #ifndef _ASM_XTENSA_DEVICE_H
 #define _ASM_XTENSA_DEVICE_H
 
-struct dma_map_ops;
-
 struct dev_archdata {
-	/* DMA operations on that device */
-	const struct dma_map_ops *dma_ops;
 };
 
 struct pdev_archdata {
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 50d23106cce0..c6140fa8c0be 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -20,12 +20,9 @@
 
 extern const struct dma_map_ops xtensa_dma_map_ops;
 
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	if (dev && dev->archdata.dma_ops)
-		return dev->archdata.dma_ops;
-	else
-		return &xtensa_dma_map_ops;
+	return &xtensa_dma_map_ops;
 }
 
 void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 3fc3f8b5752b..20444a7d867d 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -2524,7 +2524,7 @@ static void srpt_add_one(struct ib_device *device)
 	int i;
 
 	pr_debug("device = %p, device->dma_ops = %p\n", device,
-		 device->dma_ops);
+		 get_dma_ops(device->dma_device));
 
 	sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
 	if (!sdev)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 3703fb9db419..246a88d96a97 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -515,7 +515,7 @@ static void iommu_uninit_device(struct device *dev)
 	iommu_group_remove_device(dev);
 
 	/* Remove dma-ops */
-	dev->archdata.dma_ops = NULL;
+	set_dma_ops(dev, NULL);
 
 	/*
 	 * We keep dev_data around for unplugged devices and reuse it when the
@@ -2164,7 +2164,7 @@ static int amd_iommu_add_device(struct device *dev)
 				dev_name(dev));
 
 		iommu_ignore_device(dev);
-		dev->archdata.dma_ops = &nommu_dma_ops;
+		set_dma_ops(dev, &nommu_dma_ops);
 		goto out;
 	}
 	init_iommu_group(dev);
@@ -2181,7 +2181,7 @@ static int amd_iommu_add_device(struct device *dev)
 	if (domain->type == IOMMU_DOMAIN_IDENTITY)
 		dev_data->passthrough = true;
 	else
-		dev->archdata.dma_ops = &amd_iommu_dma_ops;
+		set_dma_ops(dev, &amd_iommu_dma_ops);
 
 out:
 	iommu_completion_wait(iommu);
diff --git a/drivers/misc/mic/bus/mic_bus.c b/drivers/misc/mic/bus/mic_bus.c
index c4b27a25662a..ee6e4ef370ea 100644
--- a/drivers/misc/mic/bus/mic_bus.c
+++ b/drivers/misc/mic/bus/mic_bus.c
@@ -158,7 +158,7 @@ mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_
 	mbdev->dev.parent = pdev;
 	mbdev->id.device = id;
 	mbdev->id.vendor = MBUS_DEV_ANY_ID;
-	mbdev->dev.archdata.dma_ops = dma_ops;
+	set_dma_ops(&mbdev->dev, dma_ops);
 	mbdev->dev.dma_mask = &mbdev->dev.coherent_dma_mask;
 	dma_set_mask(&mbdev->dev, DMA_BIT_MASK(64));
 	mbdev->dev.release = mbus_release_dev;
diff --git a/drivers/misc/mic/bus/scif_bus.c b/drivers/misc/mic/bus/scif_bus.c
index e5d377e97c86..d4d559cad6a1 100644
--- a/drivers/misc/mic/bus/scif_bus.c
+++ b/drivers/misc/mic/bus/scif_bus.c
@@ -154,7 +154,7 @@ scif_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_
 	sdev->dev.parent = pdev;
 	sdev->id.device = id;
 	sdev->id.vendor = SCIF_DEV_ANY_ID;
-	sdev->dev.archdata.dma_ops = dma_ops;
+	set_dma_ops(&sdev->dev, dma_ops);
 	sdev->dev.release = scif_release_dev;
 	sdev->hw_ops = hw_ops;
 	sdev->dnode = dnode;
diff --git a/drivers/misc/mic/bus/vop_bus.c b/drivers/misc/mic/bus/vop_bus.c
index b59551f5db65..c96a05f811f2 100644
--- a/drivers/misc/mic/bus/vop_bus.c
+++ b/drivers/misc/mic/bus/vop_bus.c
@@ -154,7 +154,7 @@ vop_register_device(struct device *pdev, int id,
 	vdev->dev.parent = pdev;
 	vdev->id.device = id;
 	vdev->id.vendor = VOP_DEV_ANY_ID;
-	vdev->dev.archdata.dma_ops = (const struct dma_map_ops *)dma_ops;
+	set_dma_ops(&vdev->dev, dma_ops);
 	vdev->dev.dma_mask = &vdev->dev.coherent_dma_mask;
 	dma_set_mask(&vdev->dev, DMA_BIT_MASK(64));
 	vdev->dev.release = vop_release_dev;
diff --git a/include/linux/device.h b/include/linux/device.h
index 491b4c0ca633..c7cb225d36b0 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -885,6 +885,8 @@ struct dev_links_info {
  * a higher-level representation of the device.
  */
 struct device {
+	const struct dma_map_ops *dma_ops; /* See also get_dma_ops() */
+
 	struct device		*parent;
 
 	struct device_private	*p;
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index f1da68b82c63..ab8710888ddf 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -164,6 +164,18 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
 
 #ifdef CONFIG_HAS_DMA
 #include <asm/dma-mapping.h>
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+{
+	if (dev && dev->dma_ops)
+		return dev->dma_ops;
+	return get_arch_dma_ops(dev ? dev->bus : NULL);
+}
+
+static inline void set_dma_ops(struct device *dev,
+			       const struct dma_map_ops *dma_ops)
+{
+	dev->dma_ops = dma_ops;
+}
 #else
 /*
  * Define the dma api to allow compilation but not linking of
-- 
2.11.0




From - Thu Nov 08 21:39:29 2018
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From: Greg Kroah-Hartman <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sparc,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel,gmane.linux.kernel.pci,gmane.linux.ports.sh.devel
Subject: Re: [PATCH 2/9] Move dma_ops from archdata into struct device
Date: Wed, 11 Jan 2017 07:46:24 +0100
Lines: 90
Approved: news@gmane.org
Message-ID: <20170111064624.GA26893@kroah.com>
References: <20170111005648.14988-1-bart.vanassche@sandisk.com>
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Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org, Rich Felker <dalias-8zAoT0mYgF4@public.gmane.org>,
	linux-ia64-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Aurelien Jacquiot <a-jacquiot-l0cyMroinI0@public.gmane.org>,
	Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>,
	Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>, Muli Ben-Yehuda <mulix-BzGcCpaT2IbYtjvyW6yDsg@public.gmane.org>,
	David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Max Filippov <jcmvbkbc-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	"H . Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>, sparclinux-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Russell King <linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org>, Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
	Hans-Christian Egtvedt <egtvedt-BrfabpQBY5qlHtIdYg32fQ@public.gmane.org>,
	Jonas Bonn <jonas-A9uVI2HLR7kOP4wsBPIw7w@public.gmane.org>, linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Jesper Nilsson <jesper.nilsson-VrBV9hrLPhE@public.gmane.org>,
	linux-am33-list-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, linux-c6x-dev-jPsnJVOj+W6hPH1hqNUYSQ@public.gmane.org,
	Yoshinori Sato <ysato-Rn4VEauK+AKRv+LV9MX5uooqe+aC9MnS@public.gmane.org>,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-hexagon-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	"James E . J . Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>,
	Doug Ledford <dledford@r
To: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/16550>

On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> transfer data between memory and PCIe adapter. Because of performance
> reasons it is important that the CPU cache is not flushed when such
> drivers transfer data. Make this possible by allowing these drivers to
> override the dma_map_ops pointer. Additionally, introduce the function
> set_dma_ops() that will be used by a later patch in this series.
> 
> Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
> Cc: Greg Kroah-Hartman <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
> Cc: Aurelien Jacquiot <a-jacquiot-l0cyMroinI0@public.gmane.org>
> Cc: Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>
> Cc: Chris Zankel <chris-YvXeqwSYzG2sTnJN9+BGXg@public.gmane.org>
> Cc: David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Cc: David S. Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
> Cc: Fenghua Yu <fenghua.yu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Cc: Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>
> Cc: Geoff Levand <geoff-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
> Cc: H. Peter Anvin <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
> Cc: Haavard Skinnemoen <hskinnemoen-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: Hans-Christian Egtvedt <egtvedt-BrfabpQBY5qlHtIdYg32fQ@public.gmane.org>
> Cc: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
> Cc: Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Cc: James E.J. Bottomley <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>
> Cc: Jesper Nilsson <jesper.nilsson-VrBV9hrLPhE@public.gmane.org>
> Cc: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
> Cc: Jon Mason <jdmason-zqedIHPRSYI@public.gmane.org>
> Cc: Jonas Bonn <jonas-A9uVI2HLR7kOP4wsBPIw7w@public.gmane.org>
> Cc: Ley Foon Tan <lftan-EIB2kfCEclfQT0dZR+AlfA@public.gmane.org>
> Cc: Mark Salter <msalter-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Cc: Max Filippov <jcmvbkbc-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: Mikael Starvik <starvik-VrBV9hrLPhE@public.gmane.org>
> Cc: Muli Ben-Yehuda <mulix-BzGcCpaT2IbYtjvyW6yDsg@public.gmane.org>
> Cc: Rich Felker <dalias-8zAoT0mYgF4@public.gmane.org>
> Cc: Russell King <linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org>
> Cc: Stafford Horne <shorne-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: Stefan Kristiansson <stefan.kristiansson-MbMCFXIvDHJFcC0YU169RA@public.gmane.org>
> Cc: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
> Cc: Tony Luck <tony.luck-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Cc: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
> Cc: x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
> Cc: Yoshinori Sato <ysato-Rn4VEauK+AKRv+LV9MX5uooqe+aC9MnS@public.gmane.org>
> Cc: adi-buildroot-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
> Cc: linux-alpha-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-am33-list-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
> Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
> Cc: linux-c6x-dev-jPsnJVOj+W6hPH1hqNUYSQ@public.gmane.org
> Cc: linux-cris-kernel-VrBV9hrLPhE@public.gmane.org
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> Cc: linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-snps-arc-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
> Cc: linux-xtensa-PjhNF2WwrV/0Sa2dR60CXw@public.gmane.org
> Cc: linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
> Cc: nios2-dev-g9ZBwUv/Ih/yUk5EbOjzuce+I+R0W71w@public.gmane.org
> Cc: openrisc-cunTk1MwBs9a3B2Vnqf2dGD2FQJk+8+b@public.gmane.org
> Cc: sparclinux-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: uclinux-h8-devel-5NWGOfrQmneRv+LV9MX5uooqe+aC9MnS@public.gmane.org

That's a crazy cc: list, you should break this up into smaller pieces,
otherwise it's going to bounce...

> diff --git a/include/linux/device.h b/include/linux/device.h
> index 491b4c0ca633..c7cb225d36b0 100644
> --- a/include/linux/device.h
> +++ b/include/linux/device.h
> @@ -885,6 +885,8 @@ struct dev_links_info {
>   * a higher-level representation of the device.
>   */
>  struct device {
> +	const struct dma_map_ops *dma_ops; /* See also get_dma_ops() */
> +
>  	struct device		*parent;
>  
>  	struct device_private	*p;

Why not put this new pointer down with the other dma fields in this
structure?  Any specific reason it needs to be first?

thanks,

greg k-h

From - Thu Nov 08 21:39:29 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sparc,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel,gmane.linux.kernel.pci,gmane.linux.ports.sh.devel
Subject: Re: [PATCH 2/9] Move dma_ops from archdata into struct device
Date: Wed, 11 Jan 2017 07:48:03 +0100
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Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org, Rich Felker <dalias-8zAoT0mYgF4@public.gmane.org>,
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	Russell King <linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org>, Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
	Hans-Christian Egtvedt <egtvedt-BrfabpQBY5qlHtIdYg32fQ@public.gmane.org>,
	Jonas Bonn <jonas-A9uVI2HLR7kOP4wsBPIw7w@public.gmane.org>, linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Jesper Nilsson <jesper.nilsson-VrBV9hrLPhE@public.gmane.org>,
	linux-am33-list-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, linux-c6x-dev-jPsnJVOj+W6hPH1hqNUYSQ@public.gmane.org,
	Yoshinori Sato <ysato-Rn4VEauK+AKRv+LV9MX5uooqe+aC9MnS@public.gmane.org>,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-hexagon-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	"James E . J . Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>,
	Doug Ledford <dledford@r
To: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
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On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> transfer data between memory and PCIe adapter. Because of performance
> reasons it is important that the CPU cache is not flushed when such
> drivers transfer data. Make this possible by allowing these drivers to
> override the dma_map_ops pointer. Additionally, introduce the function
> set_dma_ops() that will be used by a later patch in this series.

When you say things like "additionally", that's a huge flag that this
needs to be split up into multiple patches.  No need to add
set_dma_ops() here in this patch.

And I'd argue that it should be dma_ops_set(), and dma_ops_get(), just
to keep the namespace sane, but that's probably a different set of
patches...

thanks,

greg k-h

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From: Jesper Nilsson <jesper.nilsson@axis.com>
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Subject: Re: [PATCH v2 0/7] uapi: export all headers under uapi directories
Date: Wed, 11 Jan 2017 13:42:02 +0100
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To: Arnd Bergmann <arnd@arndb.de>
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On Mon, Jan 09, 2017 at 12:33:58PM +0100, Arnd Bergmann wrote:
> On Friday, January 6, 2017 10:43:52 AM CET Nicolas Dichtel wrote:
> > Here is the v2 of this series. The first 5 patches are just cleanup: some
> > exported headers were still under a non-uapi directory.
> 
> Since this is meant as a cleanup, I commented on this to point out a cleaner
> way to do the same.
> 
> > The patch 6 was spotted by code review: there is no in-tree user of this
> > functionality.
> > The last patch remove the use of header-y. Now all files under an uapi
> > directory are exported.
> 
> Very nice!
> 
> > asm is a bit special, most of architectures export asm/<arch>/include/uapi/asm
> > only, but there is two exceptions:
> >  - cris which exports arch/cris/include/uapi/arch-v[10|32];
> 
> This is interesting, though not your problem. Maybe someone who understands
> cris better can comment on this: How is the decision made about which of
> the arch/user.h headers gets used? I couldn't find that in the sources,
> but it appears to be based on kernel compile-time settings, which is
> wrong for user space header files that should be independent of the kernel
> config.

I believe it's since the CRISv10 and CRISv32 are very different beasts,
and that is selected via kernel config...

This part of the CRIS port has been transformed a couple of times from
the original layout without uapi, and there's still some legacy silliness,
where some files might have been exported but never used from userspace
except for some corner cases.

> >  - tile which exports arch/tile/include/uapi/arch.
> > Because I don't know if the output of 'make headers_install_all' can be changed,
> > I introduce subdir-y in Kbuild file. The headers_install_all target copies all
> > asm/<arch>/include/uapi/asm to usr/include/asm-<arch> but
> > arch/cris/include/uapi/arch-v[10|32] and arch/tile/include/uapi/arch are not
> > prefixed (they are put asis in usr/include/). If it's acceptable to modify the
> > output of 'make headers_install_all' to export asm headers in
> > usr/include/asm-<arch>/asm, then I could remove this new subdir-y and exports
> > everything under arch/<arch>/include/uapi/.
> 
> I don't know if anyone still uses "make headers_install_all", I suspect
> distros these days all use "make headers_install", so it probably
> doesn't matter much.
> 
> In case of cris, it should be easy enough to move all the contents of the
> uapi/arch-*/*.h headers into the respective uapi/asm/*.h headers, they
> only seem to be referenced from there.

This would seem to be a reasonable change.

> For tile, I suspect that would not work as the arch/*.h headers are
> apparently defined as interfaces for both user space and kernel.
> 
> > Note also that exported files for asm are a mix of files listed by:
> >  - include/uapi/asm-generic/Kbuild.asm;
> >  - arch/x86/include/uapi/asm/Kbuild;
> >  - arch/x86/include/asm/Kbuild.
> > This complicates a lot the processing (arch/x86/include/asm/Kbuild is also
> > used by scripts/Makefile.asm-generic).
> > 
> > This series has been tested with a 'make headers_install' on x86 and a
> > 'make headers_install_all'. I've checked the result of both commands.
> > 
> > This patch is built against linus tree. I don't know if it should be
> > made against antoher tree.
> 
> The series should probably get merged through the kbuild tree, but testing
> it on mainline is fine here.
> 
> 	Arnd

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com
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Subject: Re: [PATCH 2/9] Move dma_ops from archdata into struct device
Date: Wed, 11 Jan 2017 18:03:15 +0000
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On Wed, 2017-01-11 at 07:46 +0100, Greg Kroah-Hartman wrote:
> On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> > Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> > transfer data between memory and PCIe adapter. Because of performance
> > reasons it is important that the CPU cache is not flushed when such
> > drivers transfer data. Make this possible by allowing these drivers to
> > override the dma_map_ops pointer. Additionally, introduce the function
> > set_dma_ops() that will be used by a later patch in this series.
> > =

> > Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
> > Cc: [ ... ]
> =

> That's a crazy cc: list, you should break this up into smaller pieces,
> otherwise it's going to bounce...

That's a subset of what scripts/get_maintainer.pl came up with. Suggestions
for a more appropriate cc-list for a patch like this that touches all
architectures would be welcome.

> > diff --git a/include/linux/device.h b/include/linux/device.h
> > index 491b4c0ca633..c7cb225d36b0 100644
> > --- a/include/linux/device.h
> > +++ b/include/linux/device.h
> > @@ -885,6 +885,8 @@ struct dev_links_info {
> > =A0 * a higher-level representation of the device.
> > =A0 */
> > =A0struct device {
> > +	const struct dma_map_ops *dma_ops; /* See also get_dma_ops() */
> > +
> > =A0	struct device		*parent;
> > =A0
> > =A0	struct device_private	*p;
> =

> Why not put this new pointer down with the other dma fields in this
> structure?=A0=A0Any specific reason it needs to be first?

Are there CPU architectures for which access to the first member of a
structure can be encoded and/or executed more efficiently than access to
other members of a structure? If not, I'm fine with moving the new pointer
further down.

Bart.

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Subject: Re: [Linux-c6x-dev] [PATCH v2 7/7] uapi: export all headers under
 uapi directories
Date: Wed, 11 Jan 2017 13:14:41 -0500
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On Fri, 2017-01-06 at 10:43 +0100, Nicolas Dichtel wrote:
> Regularly, when a new header is created in include/uapi/, the developer
> forgets to add it in the corresponding Kbuild file. This error is usually
> detected after the release is out.
> 
> In fact, all headers under uapi directories should be exported, thus it's
> useless to have an exhaustive list.
> 
> After this patch, the following files, which were not exported, are now
> exported (with make headers_install_all):
> asm-unicore32/shmparam.h
> asm-unicore32/ucontext.h
> asm-hexagon/shmparam.h
> asm-mips/ucontext.h
> asm-mips/hwcap.h
> asm-mips/reg.h
> drm/vgem_drm.h
> drm/armada_drm.h
> drm/omap_drm.h
> drm/etnaviv_drm.h
> asm-tile/shmparam.h
> asm-blackfin/shmparam.h
> asm-blackfin/ucontext.h
> asm-powerpc/perf_regs.h
> rdma/qedr-abi.h
> asm-parisc/kvm_para.h
> asm-openrisc/shmparam.h
> asm-nios2/kvm_para.h
> asm-nios2/ucontext.h
> asm-sh/kvm_para.h
> asm-sh/ucontext.h
> asm-xtensa/kvm_para.h
> asm-avr32/kvm_para.h
> asm-m32r/kvm_para.h
> asm-h8300/shmparam.h
> asm-h8300/ucontext.h
> asm-metag/kvm_para.h
> asm-metag/shmparam.h
> asm-metag/ucontext.h
> asm-m68k/kvm_para.h
> asm-m68k/shmparam.h
> linux/bcache.h
> linux/kvm.h
> linux/kvm_para.h
> linux/kfd_ioctl.h
> linux/cryptouser.h
> linux/kcm.h
> linux/kcov.h
> linux/seg6_iptunnel.h
> linux/stm.h
> linux/genwqe
> linux/genwqe/.install
> linux/genwqe/genwqe_card.h
> linux/genwqe/..install.cmd
> linux/seg6.h
> linux/cifs
> linux/cifs/.install
> linux/cifs/cifs_mount.h
> linux/cifs/..install.cmd
> linux/auto_dev-ioctl.h
> 
> Thanks to Julien Floret <julien.floret@6wind.com> for the tip to get all
> subdirs with a pure makefile command.
> 
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
> ---
>  Documentation/kbuild/makefiles.txt          |  41 ++-
>  arch/alpha/include/uapi/asm/Kbuild          |  41 ---
>  arch/arc/include/uapi/asm/Kbuild            |   3 -
>  arch/arm/include/uapi/asm/Kbuild            |  17 -
>  arch/arm64/include/uapi/asm/Kbuild          |  18 --
>  arch/avr32/include/uapi/asm/Kbuild          |  20 --
>  arch/blackfin/include/uapi/asm/Kbuild       |  17 -
>  arch/c6x/include/uapi/asm/Kbuild            |   8 -
>  arch/cris/include/uapi/arch-v10/arch/Kbuild |   5 -
>  arch/cris/include/uapi/arch-v32/arch/Kbuild |   3 -
>  arch/cris/include/uapi/asm/Kbuild           |  43 +--
>  arch/frv/include/uapi/asm/Kbuild            |  33 --
>  arch/h8300/include/uapi/asm/Kbuild          |  28 --
>  arch/hexagon/include/asm/Kbuild             |   3 -
>  arch/hexagon/include/uapi/asm/Kbuild        |  13 -
>  arch/ia64/include/uapi/asm/Kbuild           |  45 ---
>  arch/m32r/include/uapi/asm/Kbuild           |  31 --
>  arch/m68k/include/uapi/asm/Kbuild           |  24 --
>  arch/metag/include/uapi/asm/Kbuild          |   8 -
>  arch/microblaze/include/uapi/asm/Kbuild     |  32 --
>  arch/mips/include/uapi/asm/Kbuild           |  37 ---
>  arch/mn10300/include/uapi/asm/Kbuild        |  32 --
>  arch/nios2/include/uapi/asm/Kbuild          |   4 +-
>  arch/openrisc/include/asm/Kbuild            |   3 -
>  arch/openrisc/include/uapi/asm/Kbuild       |   8 -
>  arch/parisc/include/uapi/asm/Kbuild         |  28 --
>  arch/powerpc/include/uapi/asm/Kbuild        |  45 ---
>  arch/s390/include/uapi/asm/Kbuild           |  52 ---
>  arch/score/include/asm/Kbuild               |   4 -
>  arch/score/include/uapi/asm/Kbuild          |  32 --
>  arch/sh/include/uapi/asm/Kbuild             |  23 --
>  arch/sparc/include/uapi/asm/Kbuild          |  48 ---
>  arch/tile/include/asm/Kbuild                |   3 -
>  arch/tile/include/uapi/arch/Kbuild          |  17 -
>  arch/tile/include/uapi/asm/Kbuild           |  19 +-
>  arch/unicore32/include/uapi/asm/Kbuild      |   6 -
>  arch/x86/include/uapi/asm/Kbuild            |  59 ----
>  arch/xtensa/include/uapi/asm/Kbuild         |  23 --
>  include/Kbuild                              |   2 -
>  include/asm-generic/Kbuild.asm              |   1 -
>  include/scsi/fc/Kbuild                      |   0
>  include/uapi/Kbuild                         |  15 -
>  include/uapi/asm-generic/Kbuild             |  36 ---
>  include/uapi/asm-generic/Kbuild.asm         |  62 ++--
>  include/uapi/drm/Kbuild                     |  22 --
>  include/uapi/linux/Kbuild                   | 482 ----------------------------
>  include/uapi/linux/android/Kbuild           |   2 -
>  include/uapi/linux/byteorder/Kbuild         |   3 -
>  include/uapi/linux/caif/Kbuild              |   3 -
>  include/uapi/linux/can/Kbuild               |   6 -
>  include/uapi/linux/dvb/Kbuild               |   9 -
>  include/uapi/linux/hdlc/Kbuild              |   2 -
>  include/uapi/linux/hsi/Kbuild               |   2 -
>  include/uapi/linux/iio/Kbuild               |   3 -
>  include/uapi/linux/isdn/Kbuild              |   2 -
>  include/uapi/linux/mmc/Kbuild               |   2 -
>  include/uapi/linux/netfilter/Kbuild         |  89 -----
>  include/uapi/linux/netfilter/ipset/Kbuild   |   5 -
>  include/uapi/linux/netfilter_arp/Kbuild     |   3 -
>  include/uapi/linux/netfilter_bridge/Kbuild  |  18 --
>  include/uapi/linux/netfilter_ipv4/Kbuild    |  10 -
>  include/uapi/linux/netfilter_ipv6/Kbuild    |  13 -
>  include/uapi/linux/nfsd/Kbuild              |   6 -
>  include/uapi/linux/raid/Kbuild              |   3 -
>  include/uapi/linux/spi/Kbuild               |   2 -
>  include/uapi/linux/sunrpc/Kbuild            |   2 -
>  include/uapi/linux/tc_act/Kbuild            |  15 -
>  include/uapi/linux/tc_ematch/Kbuild         |   5 -
>  include/uapi/linux/usb/Kbuild               |  12 -
>  include/uapi/linux/wimax/Kbuild             |   2 -
>  include/uapi/misc/Kbuild                    |   2 -
>  include/uapi/mtd/Kbuild                     |   6 -
>  include/uapi/rdma/Kbuild                    |  18 --
>  include/uapi/rdma/hfi/Kbuild                |   2 -
>  include/uapi/scsi/Kbuild                    |   6 -
>  include/uapi/scsi/fc/Kbuild                 |   5 -
>  include/uapi/sound/Kbuild                   |  16 -
>  include/uapi/video/Kbuild                   |   4 -
>  include/uapi/xen/Kbuild                     |   5 -
>  include/video/Kbuild                        |   0
>  scripts/Makefile.headersinst                |  39 +--
>  81 files changed, 73 insertions(+), 1745 deletions(-)
>  delete mode 100644 arch/cris/include/uapi/arch-v10/arch/Kbuild
>  delete mode 100644 arch/cris/include/uapi/arch-v32/arch/Kbuild
>  delete mode 100644 arch/tile/include/uapi/arch/Kbuild
>  delete mode 100644 include/Kbuild
>  delete mode 100644 include/asm-generic/Kbuild.asm
>  delete mode 100644 include/scsi/fc/Kbuild
>  delete mode 100644 include/uapi/Kbuild
>  delete mode 100644 include/uapi/asm-generic/Kbuild
>  delete mode 100644 include/uapi/drm/Kbuild
>  delete mode 100644 include/uapi/linux/Kbuild
>  delete mode 100644 include/uapi/linux/android/Kbuild
>  delete mode 100644 include/uapi/linux/byteorder/Kbuild
>  delete mode 100644 include/uapi/linux/caif/Kbuild
>  delete mode 100644 include/uapi/linux/can/Kbuild
>  delete mode 100644 include/uapi/linux/dvb/Kbuild
>  delete mode 100644 include/uapi/linux/hdlc/Kbuild
>  delete mode 100644 include/uapi/linux/hsi/Kbuild
>  delete mode 100644 include/uapi/linux/iio/Kbuild
>  delete mode 100644 include/uapi/linux/isdn/Kbuild
>  delete mode 100644 include/uapi/linux/mmc/Kbuild
>  delete mode 100644 include/uapi/linux/netfilter/Kbuild
>  delete mode 100644 include/uapi/linux/netfilter/ipset/Kbuild
>  delete mode 100644 include/uapi/linux/netfilter_arp/Kbuild
>  delete mode 100644 include/uapi/linux/netfilter_bridge/Kbuild
>  delete mode 100644 include/uapi/linux/netfilter_ipv4/Kbuild
>  delete mode 100644 include/uapi/linux/netfilter_ipv6/Kbuild
>  delete mode 100644 include/uapi/linux/nfsd/Kbuild
>  delete mode 100644 include/uapi/linux/raid/Kbuild
>  delete mode 100644 include/uapi/linux/spi/Kbuild
>  delete mode 100644 include/uapi/linux/sunrpc/Kbuild
>  delete mode 100644 include/uapi/linux/tc_act/Kbuild
>  delete mode 100644 include/uapi/linux/tc_ematch/Kbuild
>  delete mode 100644 include/uapi/linux/usb/Kbuild
>  delete mode 100644 include/uapi/linux/wimax/Kbuild
>  delete mode 100644 include/uapi/misc/Kbuild
>  delete mode 100644 include/uapi/mtd/Kbuild
>  delete mode 100644 include/uapi/rdma/Kbuild
>  delete mode 100644 include/uapi/rdma/hfi/Kbuild
>  delete mode 100644 include/uapi/scsi/Kbuild
>  delete mode 100644 include/uapi/scsi/fc/Kbuild
>  delete mode 100644 include/uapi/sound/Kbuild
>  delete mode 100644 include/uapi/video/Kbuild
>  delete mode 100644 include/uapi/xen/Kbuild
>  delete mode 100644 include/video/Kbuild
> 
> diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
> index 37b525d329ae..53e31061ff18 100644
> --- a/Documentation/kbuild/makefiles.txt
> +++ b/Documentation/kbuild/makefiles.txt
> @@ -44,7 +44,7 @@ This document describes the Linux kernel Makefiles.
>  	   --- 6.11 Post-link pass
>  
>  	=== 7 Kbuild syntax for exported headers
> -		--- 7.1 header-y
> +		--- 7.1 subdir-y
>  		--- 7.2 genhdr-y
>  		--- 7.3 generic-y
>  		--- 7.4 generated-y
> @@ -1235,7 +1235,7 @@ When kbuild executes, the following steps are followed (roughly):
>  	that may be shared between individual architectures.
>  	The recommended approach how to use a generic header file is
>  	to list the file in the Kbuild file.
> -	See "7.4 generic-y" for further info on syntax etc.
> +	See "7.3 generic-y" for further info on syntax etc.
>  
>  --- 6.11 Post-link pass
>  
> @@ -1262,37 +1262,36 @@ The pre-processing does:
>  - drop include of compiler.h
>  - drop all sections that are kernel internal (guarded by ifdef __KERNEL__)
>  
> -Each relevant directory contains a file name "Kbuild" which specifies the
> -headers to be exported.
> +All headers under include/uapi/, include/generated/uapi/,
> +arch/<arch>/include/uapi/asm/ and arch/<arch>/include/generated/uapi/asm/
> +are exported.
> +
> +A Kbuild file may be defined under arch/<arch>/include/uapi/asm/ and
> +arch/<arch>/include/asm/ to list asm files coming from asm-generic.
>  See subsequent chapter for the syntax of the Kbuild file.
>  
> -	--- 7.1 header-y
> +	--- 7.1 subdir-y
>  
> -	header-y specifies header files to be exported.
> +	subdir-y may be used to specify a subdirectory to be exported.
>  
>  		Example:
> -			#include/linux/Kbuild
> -			header-y += usb/
> -			header-y += aio_abi.h
> +			#arch/cris/include/uapi/asm/Kbuild
> +			subdir-y += ../arch-v10/arch/
> +			subdir-y += ../arch-v32/arch/
>  
> -	The convention is to list one file per line and
> +	The convention is to list one subdir per line and
>  	preferably in alphabetic order.
>  
> -	header-y also specifies which subdirectories to visit.
> -	A subdirectory is identified by a trailing '/' which
> -	can be seen in the example above for the usb subdirectory.
> -
> -	Subdirectories are visited before their parent directories.
> -
>  	--- 7.2 genhdr-y
>  
> -	genhdr-y specifies generated files to be exported.
> -	Generated files are special as they need to be looked
> -	up in another directory when doing 'make O=...' builds.
> +	genhdr-y specifies asm files to be generated.
>  
>  		Example:
> -			#include/linux/Kbuild
> -			genhdr-y += version.h
> +			#arch/x86/include/uapi/asm/Kbuild
> +			genhdr-y += unistd_32.h
> +			genhdr-y += unistd_64.h
> +			genhdr-y += unistd_x32.h
> +
>  
>  	--- 7.3 generic-y
>  
> diff --git a/arch/alpha/include/uapi/asm/Kbuild b/arch/alpha/include/uapi/asm/Kbuild
> index d96f2ef5b639..b15bf6bc0e94 100644
> --- a/arch/alpha/include/uapi/asm/Kbuild
> +++ b/arch/alpha/include/uapi/asm/Kbuild
> @@ -1,43 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += a.out.h
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += compiler.h
> -header-y += console.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += fpu.h
> -header-y += gentrap.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += pal.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += reg.h
> -header-y += regdef.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += sysinfo.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/arc/include/uapi/asm/Kbuild b/arch/arc/include/uapi/asm/Kbuild
> index f50d02df78d5..b15bf6bc0e94 100644
> --- a/arch/arc/include/uapi/asm/Kbuild
> +++ b/arch/arc/include/uapi/asm/Kbuild
> @@ -1,5 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -header-y += elf.h
> -header-y += page.h
> -header-y += cachectl.h
> diff --git a/arch/arm/include/uapi/asm/Kbuild b/arch/arm/include/uapi/asm/Kbuild
> index 46a76cd6acb6..607f702c2d62 100644
> --- a/arch/arm/include/uapi/asm/Kbuild
> +++ b/arch/arm/include/uapi/asm/Kbuild
> @@ -1,23 +1,6 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> -header-y += auxvec.h
> -header-y += byteorder.h
> -header-y += fcntl.h
> -header-y += hwcap.h
> -header-y += ioctls.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += perf_regs.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += unistd.h
>  genhdr-y += unistd-common.h
>  genhdr-y += unistd-oabi.h
>  genhdr-y += unistd-eabi.h
> diff --git a/arch/arm64/include/uapi/asm/Kbuild b/arch/arm64/include/uapi/asm/Kbuild
> index 825b0fe51c2b..13a97aa2285f 100644
> --- a/arch/arm64/include/uapi/asm/Kbuild
> +++ b/arch/arm64/include/uapi/asm/Kbuild
> @@ -2,21 +2,3 @@
>  include include/uapi/asm-generic/Kbuild.asm
>  
>  generic-y += kvm_para.h
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += fcntl.h
> -header-y += hwcap.h
> -header-y += kvm_para.h
> -header-y += perf_regs.h
> -header-y += param.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += ucontext.h
> -header-y += unistd.h
> diff --git a/arch/avr32/include/uapi/asm/Kbuild b/arch/avr32/include/uapi/asm/Kbuild
> index 08d8a3d76ea8..610395083364 100644
> --- a/arch/avr32/include/uapi/asm/Kbuild
> +++ b/arch/avr32/include/uapi/asm/Kbuild
> @@ -1,26 +1,6 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> -header-y += auxvec.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
>  generic-y += bitsperlong.h
>  generic-y += errno.h
>  generic-y += fcntl.h
> diff --git a/arch/blackfin/include/uapi/asm/Kbuild b/arch/blackfin/include/uapi/asm/Kbuild
> index 0bd28f77abc3..b15bf6bc0e94 100644
> --- a/arch/blackfin/include/uapi/asm/Kbuild
> +++ b/arch/blackfin/include/uapi/asm/Kbuild
> @@ -1,19 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += bfin_sport.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += fcntl.h
> -header-y += fixed_code.h
> -header-y += ioctls.h
> -header-y += kvm_para.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += unistd.h
> diff --git a/arch/c6x/include/uapi/asm/Kbuild b/arch/c6x/include/uapi/asm/Kbuild
> index e9bc2b2b8147..13a97aa2285f 100644
> --- a/arch/c6x/include/uapi/asm/Kbuild
> +++ b/arch/c6x/include/uapi/asm/Kbuild
> @@ -2,11 +2,3 @@
>  include include/uapi/asm-generic/Kbuild.asm
>  
>  generic-y += kvm_para.h
> -
> -header-y += byteorder.h
> -header-y += kvm_para.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += swab.h
> -header-y += unistd.h

Acked-by: Mark Salter <msalter@redhat.com>

> diff --git a/arch/cris/include/uapi/arch-v10/arch/Kbuild b/arch/cris/include/uapi/arch-v10/arch/Kbuild
> deleted file mode 100644
> index 9048c87a782b..000000000000
> --- a/arch/cris/include/uapi/arch-v10/arch/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += sv_addr.agh
> -header-y += sv_addr_ag.h
> -header-y += svinto.h
> -header-y += user.h
> diff --git a/arch/cris/include/uapi/arch-v32/arch/Kbuild b/arch/cris/include/uapi/arch-v32/arch/Kbuild
> deleted file mode 100644
> index 59efffd16b61..000000000000
> --- a/arch/cris/include/uapi/arch-v32/arch/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += cryptocop.h
> -header-y += user.h
> diff --git a/arch/cris/include/uapi/asm/Kbuild b/arch/cris/include/uapi/asm/Kbuild
> index d5564a0ae66a..d0c5471856e0 100644
> --- a/arch/cris/include/uapi/asm/Kbuild
> +++ b/arch/cris/include/uapi/asm/Kbuild
> @@ -1,44 +1,5 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> -header-y += ../arch-v10/arch/
> -header-y += ../arch-v32/arch/
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += elf.h
> -header-y += elf_v10.h
> -header-y += elf_v32.h
> -header-y += errno.h
> -header-y += ethernet.h
> -header-y += etraxgpio.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += ptrace_v10.h
> -header-y += ptrace_v32.h
> -header-y += resource.h
> -header-y += rs485.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += sync_serial.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> +subdir-y += ../arch-v10/arch/
> +subdir-y += ../arch-v32/arch/
> diff --git a/arch/frv/include/uapi/asm/Kbuild b/arch/frv/include/uapi/asm/Kbuild
> index 42a2b33461c0..b15bf6bc0e94 100644
> --- a/arch/frv/include/uapi/asm/Kbuild
> +++ b/arch/frv/include/uapi/asm/Kbuild
> @@ -1,35 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += registers.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/h8300/include/uapi/asm/Kbuild b/arch/h8300/include/uapi/asm/Kbuild
> index fb6101a5d4f1..b15bf6bc0e94 100644
> --- a/arch/h8300/include/uapi/asm/Kbuild
> +++ b/arch/h8300/include/uapi/asm/Kbuild
> @@ -1,30 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += siginfo.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
> index db8ddabc6bd2..f3b1ceb5c1e4 100644
> --- a/arch/hexagon/include/asm/Kbuild
> +++ b/arch/hexagon/include/asm/Kbuild
> @@ -1,6 +1,3 @@
> -
> -header-y += ucontext.h
> -
>  generic-y += auxvec.h
>  generic-y += barrier.h
>  generic-y += bug.h
> diff --git a/arch/hexagon/include/uapi/asm/Kbuild b/arch/hexagon/include/uapi/asm/Kbuild
> index c31706c38631..b15bf6bc0e94 100644
> --- a/arch/hexagon/include/uapi/asm/Kbuild
> +++ b/arch/hexagon/include/uapi/asm/Kbuild
> @@ -1,15 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += kvm_para.h
> -header-y += param.h
> -header-y += ptrace.h
> -header-y += registers.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += swab.h
> -header-y += unistd.h
> -header-y += user.h
> diff --git a/arch/ia64/include/uapi/asm/Kbuild b/arch/ia64/include/uapi/asm/Kbuild
> index 891002bbb995..13a97aa2285f 100644
> --- a/arch/ia64/include/uapi/asm/Kbuild
> +++ b/arch/ia64/include/uapi/asm/Kbuild
> @@ -2,48 +2,3 @@
>  include include/uapi/asm-generic/Kbuild.asm
>  
>  generic-y += kvm_para.h
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += break.h
> -header-y += byteorder.h
> -header-y += cmpxchg.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += fpu.h
> -header-y += gcc_intrin.h
> -header-y += ia64regs.h
> -header-y += intel_intrin.h
> -header-y += intrinsics.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += perfmon.h
> -header-y += perfmon_default_smpl.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += ptrace_offsets.h
> -header-y += resource.h
> -header-y += rse.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> -header-y += ustack.h
> diff --git a/arch/m32r/include/uapi/asm/Kbuild b/arch/m32r/include/uapi/asm/Kbuild
> index 43937a61d6cf..b15bf6bc0e94 100644
> --- a/arch/m32r/include/uapi/asm/Kbuild
> +++ b/arch/m32r/include/uapi/asm/Kbuild
> @@ -1,33 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/m68k/include/uapi/asm/Kbuild b/arch/m68k/include/uapi/asm/Kbuild
> index 6a2d257bdfb2..64368077235a 100644
> --- a/arch/m68k/include/uapi/asm/Kbuild
> +++ b/arch/m68k/include/uapi/asm/Kbuild
> @@ -9,27 +9,3 @@ generic-y += socket.h
>  generic-y += sockios.h
>  generic-y += termbits.h
>  generic-y += termios.h
> -
> -header-y += a.out.h
> -header-y += bootinfo.h
> -header-y += bootinfo-amiga.h
> -header-y += bootinfo-apollo.h
> -header-y += bootinfo-atari.h
> -header-y += bootinfo-hp300.h
> -header-y += bootinfo-mac.h
> -header-y += bootinfo-q40.h
> -header-y += bootinfo-vme.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += fcntl.h
> -header-y += ioctls.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += unistd.h
> diff --git a/arch/metag/include/uapi/asm/Kbuild b/arch/metag/include/uapi/asm/Kbuild
> index ab78be2b6eb0..b29731ebd7a9 100644
> --- a/arch/metag/include/uapi/asm/Kbuild
> +++ b/arch/metag/include/uapi/asm/Kbuild
> @@ -1,14 +1,6 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> -header-y += byteorder.h
> -header-y += ech.h
> -header-y += ptrace.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += swab.h
> -header-y += unistd.h
> -
>  generic-y += mman.h
>  generic-y += resource.h
>  generic-y += setup.h
> diff --git a/arch/microblaze/include/uapi/asm/Kbuild b/arch/microblaze/include/uapi/asm/Kbuild
> index 1aac99f87df1..2178c78c7c1a 100644
> --- a/arch/microblaze/include/uapi/asm/Kbuild
> +++ b/arch/microblaze/include/uapi/asm/Kbuild
> @@ -2,35 +2,3 @@
>  include include/uapi/asm-generic/Kbuild.asm
>  
>  generic-y += types.h
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += elf.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += unistd.h
> diff --git a/arch/mips/include/uapi/asm/Kbuild b/arch/mips/include/uapi/asm/Kbuild
> index f2cf41461146..a0266feba9e6 100644
> --- a/arch/mips/include/uapi/asm/Kbuild
> +++ b/arch/mips/include/uapi/asm/Kbuild
> @@ -2,40 +2,3 @@
>  include include/uapi/asm-generic/Kbuild.asm
>  
>  generic-y += ipcbuf.h
> -
> -header-y += auxvec.h
> -header-y += bitfield.h
> -header-y += bitsperlong.h
> -header-y += break.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += inst.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += sgidefs.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += sysmips.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/mn10300/include/uapi/asm/Kbuild b/arch/mn10300/include/uapi/asm/Kbuild
> index 040178cdb3eb..b15bf6bc0e94 100644
> --- a/arch/mn10300/include/uapi/asm/Kbuild
> +++ b/arch/mn10300/include/uapi/asm/Kbuild
> @@ -1,34 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/nios2/include/uapi/asm/Kbuild b/arch/nios2/include/uapi/asm/Kbuild
> index e0bb972a50d7..766455d0d291 100644
> --- a/arch/nios2/include/uapi/asm/Kbuild
> +++ b/arch/nios2/include/uapi/asm/Kbuild
> @@ -1,5 +1,3 @@
> +# UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += elf.h
> -
>  generic-y += ucontext.h
> diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
> index 2832f031fb11..561915716fd9 100644
> --- a/arch/openrisc/include/asm/Kbuild
> +++ b/arch/openrisc/include/asm/Kbuild
> @@ -1,6 +1,3 @@
> -
> -header-y += ucontext.h
> -
>  generic-y += atomic.h
>  generic-y += auxvec.h
>  generic-y += barrier.h
> diff --git a/arch/openrisc/include/uapi/asm/Kbuild b/arch/openrisc/include/uapi/asm/Kbuild
> index 80761eb82b5f..b15bf6bc0e94 100644
> --- a/arch/openrisc/include/uapi/asm/Kbuild
> +++ b/arch/openrisc/include/uapi/asm/Kbuild
> @@ -1,10 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += byteorder.h
> -header-y += elf.h
> -header-y += kvm_para.h
> -header-y += param.h
> -header-y += ptrace.h
> -header-y += sigcontext.h
> -header-y += unistd.h
> diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
> index 348356c99514..3971c60a7e7f 100644
> --- a/arch/parisc/include/uapi/asm/Kbuild
> +++ b/arch/parisc/include/uapi/asm/Kbuild
> @@ -2,31 +2,3 @@
>  include include/uapi/asm-generic/Kbuild.asm
>  
>  generic-y += resource.h
> -
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += pdc.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/powerpc/include/uapi/asm/Kbuild b/arch/powerpc/include/uapi/asm/Kbuild
> index dab3717e3ea0..b15bf6bc0e94 100644
> --- a/arch/powerpc/include/uapi/asm/Kbuild
> +++ b/arch/powerpc/include/uapi/asm/Kbuild
> @@ -1,47 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += bootx.h
> -header-y += byteorder.h
> -header-y += cputable.h
> -header-y += eeh.h
> -header-y += elf.h
> -header-y += epapr_hcalls.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += nvram.h
> -header-y += opal-prd.h
> -header-y += param.h
> -header-y += perf_event.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ps3fb.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += spu_info.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += tm.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild
> index bf736e764cb4..b15bf6bc0e94 100644
> --- a/arch/s390/include/uapi/asm/Kbuild
> +++ b/arch/s390/include/uapi/asm/Kbuild
> @@ -1,54 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += chpid.h
> -header-y += chsc.h
> -header-y += clp.h
> -header-y += cmb.h
> -header-y += dasd.h
> -header-y += debug.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += hypfs.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm.h
> -header-y += kvm_para.h
> -header-y += kvm_perf.h
> -header-y += kvm_virtio.h
> -header-y += mman.h
> -header-y += monwriter.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += qeth.h
> -header-y += resource.h
> -header-y += schid.h
> -header-y += sclp_ctl.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sie.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += tape390.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> -header-y += virtio-ccw.h
> -header-y += vtoc.h
> -header-y += zcrypt.h
> diff --git a/arch/score/include/asm/Kbuild b/arch/score/include/asm/Kbuild
> index a05218ff3fe4..128ca7ec0220 100644
> --- a/arch/score/include/asm/Kbuild
> +++ b/arch/score/include/asm/Kbuild
> @@ -1,7 +1,3 @@
> -
> -header-y +=
> -
> -
>  generic-y += barrier.h
>  generic-y += clkdev.h
>  generic-y += cputime.h
> diff --git a/arch/score/include/uapi/asm/Kbuild b/arch/score/include/uapi/asm/Kbuild
> index 040178cdb3eb..b15bf6bc0e94 100644
> --- a/arch/score/include/uapi/asm/Kbuild
> +++ b/arch/score/include/uapi/asm/Kbuild
> @@ -1,34 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/sh/include/uapi/asm/Kbuild b/arch/sh/include/uapi/asm/Kbuild
> index 60613ae78513..b15bf6bc0e94 100644
> --- a/arch/sh/include/uapi/asm/Kbuild
> +++ b/arch/sh/include/uapi/asm/Kbuild
> @@ -1,25 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += cpu-features.h
> -header-y += hw_breakpoint.h
> -header-y += ioctls.h
> -header-y += posix_types.h
> -header-y += posix_types_32.h
> -header-y += posix_types_64.h
> -header-y += ptrace.h
> -header-y += ptrace_32.h
> -header-y += ptrace_64.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += types.h
> -header-y += unistd.h
> -header-y += unistd_32.h
> -header-y += unistd_64.h
> diff --git a/arch/sparc/include/uapi/asm/Kbuild b/arch/sparc/include/uapi/asm/Kbuild
> index b5843ee09fb5..b15bf6bc0e94 100644
> --- a/arch/sparc/include/uapi/asm/Kbuild
> +++ b/arch/sparc/include/uapi/asm/Kbuild
> @@ -1,50 +1,2 @@
>  # UAPI Header export list
> -# User exported sparc header files
> -
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += apc.h
> -header-y += asi.h
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += display7seg.h
> -header-y += envctrl.h
> -header-y += errno.h
> -header-y += fbio.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += jsflash.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += openpromio.h
> -header-y += param.h
> -header-y += perfctr.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += psr.h
> -header-y += psrcompat.h
> -header-y += pstate.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += traps.h
> -header-y += uctx.h
> -header-y += unistd.h
> -header-y += utrap.h
> -header-y += watchdog.h
> diff --git a/arch/tile/include/asm/Kbuild b/arch/tile/include/asm/Kbuild
> index 2d1f5638974c..057eaa533877 100644
> --- a/arch/tile/include/asm/Kbuild
> +++ b/arch/tile/include/asm/Kbuild
> @@ -1,6 +1,3 @@
> -
> -header-y += ../arch/
> -
>  generic-y += bug.h
>  generic-y += bugs.h
>  generic-y += clkdev.h
> diff --git a/arch/tile/include/uapi/arch/Kbuild b/arch/tile/include/uapi/arch/Kbuild
> deleted file mode 100644
> index 97dfbecec6b6..000000000000
> --- a/arch/tile/include/uapi/arch/Kbuild
> +++ /dev/null
> @@ -1,17 +0,0 @@
> -# UAPI Header export list
> -header-y += abi.h
> -header-y += chip.h
> -header-y += chip_tilegx.h
> -header-y += chip_tilepro.h
> -header-y += icache.h
> -header-y += interrupts.h
> -header-y += interrupts_32.h
> -header-y += interrupts_64.h
> -header-y += opcode.h
> -header-y += opcode_tilegx.h
> -header-y += opcode_tilepro.h
> -header-y += sim.h
> -header-y += sim_def.h
> -header-y += spr_def.h
> -header-y += spr_def_32.h
> -header-y += spr_def_64.h
> diff --git a/arch/tile/include/uapi/asm/Kbuild b/arch/tile/include/uapi/asm/Kbuild
> index c20db8e428bf..e0a50111e07f 100644
> --- a/arch/tile/include/uapi/asm/Kbuild
> +++ b/arch/tile/include/uapi/asm/Kbuild
> @@ -1,21 +1,6 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += hardwall.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += ucontext.h
> -header-y += unistd.h
> -
>  generic-y += ucontext.h
> +
> +subdir-y += ../arch
> diff --git a/arch/unicore32/include/uapi/asm/Kbuild b/arch/unicore32/include/uapi/asm/Kbuild
> index 0514d7ad6855..13a97aa2285f 100644
> --- a/arch/unicore32/include/uapi/asm/Kbuild
> +++ b/arch/unicore32/include/uapi/asm/Kbuild
> @@ -1,10 +1,4 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
>  
> -header-y += byteorder.h
> -header-y += kvm_para.h
> -header-y += ptrace.h
> -header-y += sigcontext.h
> -header-y += unistd.h
> -
>  generic-y += kvm_para.h
> diff --git a/arch/x86/include/uapi/asm/Kbuild b/arch/x86/include/uapi/asm/Kbuild
> index 3dec769cadf7..83b6e9a0dce4 100644
> --- a/arch/x86/include/uapi/asm/Kbuild
> +++ b/arch/x86/include/uapi/asm/Kbuild
> @@ -4,62 +4,3 @@ include include/uapi/asm-generic/Kbuild.asm
>  genhdr-y += unistd_32.h
>  genhdr-y += unistd_64.h
>  genhdr-y += unistd_x32.h
> -header-y += a.out.h
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += boot.h
> -header-y += bootparam.h
> -header-y += byteorder.h
> -header-y += debugreg.h
> -header-y += e820.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += hw_breakpoint.h
> -header-y += hyperv.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += ist.h
> -header-y += kvm.h
> -header-y += kvm_para.h
> -header-y += kvm_perf.h
> -header-y += ldt.h
> -header-y += mce.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += msr-index.h
> -header-y += msr.h
> -header-y += mtrr.h
> -header-y += param.h
> -header-y += perf_regs.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += posix_types_32.h
> -header-y += posix_types_64.h
> -header-y += posix_types_x32.h
> -header-y += prctl.h
> -header-y += processor-flags.h
> -header-y += ptrace-abi.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += sigcontext32.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += svm.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> -header-y += vm86.h
> -header-y += vmx.h
> -header-y += vsyscall.h
> diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild
> index 56aad54e7fb7..b15bf6bc0e94 100644
> --- a/arch/xtensa/include/uapi/asm/Kbuild
> +++ b/arch/xtensa/include/uapi/asm/Kbuild
> @@ -1,25 +1,2 @@
>  # UAPI Header export list
>  include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += byteorder.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/include/Kbuild b/include/Kbuild
> deleted file mode 100644
> index bab1145bc7a7..000000000000
> --- a/include/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# Top-level Makefile calls into asm-$(ARCH)
> -# List only non-arch directories below
> diff --git a/include/asm-generic/Kbuild.asm b/include/asm-generic/Kbuild.asm
> deleted file mode 100644
> index d2ee86b4c091..000000000000
> --- a/include/asm-generic/Kbuild.asm
> +++ /dev/null
> @@ -1 +0,0 @@
> -include include/uapi/asm-generic/Kbuild.asm
> diff --git a/include/scsi/fc/Kbuild b/include/scsi/fc/Kbuild
> deleted file mode 100644
> index e69de29bb2d1..000000000000
> diff --git a/include/uapi/Kbuild b/include/uapi/Kbuild
> deleted file mode 100644
> index 245aa6e05e6a..000000000000
> --- a/include/uapi/Kbuild
> +++ /dev/null
> @@ -1,15 +0,0 @@
> -# UAPI Header export list
> -# Top-level Makefile calls into asm-$(ARCH)
> -# List only non-arch directories below
> -
> -
> -header-y += asm-generic/
> -header-y += linux/
> -header-y += sound/
> -header-y += mtd/
> -header-y += rdma/
> -header-y += video/
> -header-y += drm/
> -header-y += xen/
> -header-y += scsi/
> -header-y += misc/
> diff --git a/include/uapi/asm-generic/Kbuild b/include/uapi/asm-generic/Kbuild
> deleted file mode 100644
> index b73de7bb7a62..000000000000
> --- a/include/uapi/asm-generic/Kbuild
> +++ /dev/null
> @@ -1,36 +0,0 @@
> -# UAPI Header export list
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += errno-base.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += int-l64.h
> -header-y += int-ll64.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman-common.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += shmparam.h
> -header-y += siginfo.h
> -header-y += signal-defs.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> diff --git a/include/uapi/asm-generic/Kbuild.asm b/include/uapi/asm-generic/Kbuild.asm
> index fcd50b759217..c13805d5a2a0 100644
> --- a/include/uapi/asm-generic/Kbuild.asm
> +++ b/include/uapi/asm-generic/Kbuild.asm
> @@ -8,38 +8,38 @@ opt-header += a.out.h
>  #
>  # Headers that are mandatory in usr/include/asm/
>  #
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> +generic-y += auxvec.h
> +generic-y += bitsperlong.h
> +generic-y += byteorder.h
> +generic-y += errno.h
> +generic-y += fcntl.h
> +generic-y += ioctl.h
> +generic-y += ioctls.h
> +generic-y += ipcbuf.h
> +generic-y += mman.h
> +generic-y += msgbuf.h
> +generic-y += param.h
> +generic-y += poll.h
> +generic-y += posix_types.h
> +generic-y += ptrace.h
> +generic-y += resource.h
> +generic-y += sembuf.h
> +generic-y += setup.h
> +generic-y += shmbuf.h
> +generic-y += sigcontext.h
> +generic-y += siginfo.h
> +generic-y += signal.h
> +generic-y += socket.h
> +generic-y += sockios.h
> +generic-y += stat.h
> +generic-y += statfs.h
> +generic-y += swab.h
> +generic-y += termbits.h
> +generic-y += termios.h
> +generic-y += types.h
> +generic-y += unistd.h
>  
> -header-y += $(foreach hdr,$(opt-header), \
> +generic-y += $(foreach hdr,$(opt-header), \
>  	      $(if \
>  		$(wildcard \
>  			$(srctree)/arch/$(SRCARCH)/include/uapi/asm/$(hdr) \
> diff --git a/include/uapi/drm/Kbuild b/include/uapi/drm/Kbuild
> deleted file mode 100644
> index 9355dd8eff3b..000000000000
> --- a/include/uapi/drm/Kbuild
> +++ /dev/null
> @@ -1,22 +0,0 @@
> -# UAPI Header export list
> -header-y += drm.h
> -header-y += drm_fourcc.h
> -header-y += drm_mode.h
> -header-y += drm_sarea.h
> -header-y += amdgpu_drm.h
> -header-y += exynos_drm.h
> -header-y += i810_drm.h
> -header-y += i915_drm.h
> -header-y += mga_drm.h
> -header-y += nouveau_drm.h
> -header-y += qxl_drm.h
> -header-y += r128_drm.h
> -header-y += radeon_drm.h
> -header-y += savage_drm.h
> -header-y += sis_drm.h
> -header-y += tegra_drm.h
> -header-y += via_drm.h
> -header-y += vmwgfx_drm.h
> -header-y += msm_drm.h
> -header-y += vc4_drm.h
> -header-y += virtgpu_drm.h
> diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
> deleted file mode 100644
> index a8b93e685239..000000000000
> --- a/include/uapi/linux/Kbuild
> +++ /dev/null
> @@ -1,482 +0,0 @@
> -# UAPI Header export list
> -header-y += android/
> -header-y += byteorder/
> -header-y += can/
> -header-y += caif/
> -header-y += dvb/
> -header-y += hdlc/
> -header-y += hsi/
> -header-y += iio/
> -header-y += isdn/
> -header-y += mmc/
> -header-y += nfsd/
> -header-y += raid/
> -header-y += spi/
> -header-y += sunrpc/
> -header-y += tc_act/
> -header-y += tc_ematch/
> -header-y += netfilter/
> -header-y += netfilter_arp/
> -header-y += netfilter_bridge/
> -header-y += netfilter_ipv4/
> -header-y += netfilter_ipv6/
> -header-y += usb/
> -header-y += wimax/
> -
> -genhdr-y += version.h
> -
> -ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/a.out.h \
> -		  $(srctree)/arch/$(SRCARCH)/include/asm/a.out.h),)
> -header-y += a.out.h
> -endif
> -
> -header-y += acct.h
> -header-y += adb.h
> -header-y += adfs_fs.h
> -header-y += affs_hardblocks.h
> -header-y += agpgart.h
> -header-y += aio_abi.h
> -header-y += am437x-vpfe.h
> -header-y += apm_bios.h
> -header-y += arcfb.h
> -header-y += atalk.h
> -header-y += atmapi.h
> -header-y += atmarp.h
> -header-y += atmbr2684.h
> -header-y += atmclip.h
> -header-y += atmdev.h
> -header-y += atm_eni.h
> -header-y += atm.h
> -header-y += atm_he.h
> -header-y += atm_idt77105.h
> -header-y += atmioc.h
> -header-y += atmlec.h
> -header-y += atmmpc.h
> -header-y += atm_nicstar.h
> -header-y += atmppp.h
> -header-y += atmsap.h
> -header-y += atmsvc.h
> -header-y += atm_tcp.h
> -header-y += atm_zatm.h
> -header-y += audit.h
> -header-y += auto_fs4.h
> -header-y += auto_fs.h
> -header-y += auxvec.h
> -header-y += ax25.h
> -header-y += b1lli.h
> -header-y += baycom.h
> -header-y += bcm933xx_hcs.h
> -header-y += bfs_fs.h
> -header-y += binfmts.h
> -header-y += blkpg.h
> -header-y += blktrace_api.h
> -header-y += blkzoned.h
> -header-y += bpf_common.h
> -header-y += bpf_perf_event.h
> -header-y += bpf.h
> -header-y += bpqether.h
> -header-y += bsg.h
> -header-y += bt-bmc.h
> -header-y += btrfs.h
> -header-y += can.h
> -header-y += capability.h
> -header-y += capi.h
> -header-y += cciss_defs.h
> -header-y += cciss_ioctl.h
> -header-y += cdrom.h
> -header-y += cec.h
> -header-y += cec-funcs.h
> -header-y += cgroupstats.h
> -header-y += chio.h
> -header-y += cm4000_cs.h
> -header-y += cn_proc.h
> -header-y += coda.h
> -header-y += coda_psdev.h
> -header-y += coff.h
> -header-y += connector.h
> -header-y += const.h
> -header-y += cramfs_fs.h
> -header-y += cuda.h
> -header-y += cyclades.h
> -header-y += cycx_cfm.h
> -header-y += dcbnl.h
> -header-y += dccp.h
> -header-y += devlink.h
> -header-y += dlmconstants.h
> -header-y += dlm_device.h
> -header-y += dlm.h
> -header-y += dlm_netlink.h
> -header-y += dlm_plock.h
> -header-y += dm-ioctl.h
> -header-y += dm-log-userspace.h
> -header-y += dn.h
> -header-y += dqblk_xfs.h
> -header-y += edd.h
> -header-y += efs_fs_sb.h
> -header-y += elfcore.h
> -header-y += elf-em.h
> -header-y += elf-fdpic.h
> -header-y += elf.h
> -header-y += errno.h
> -header-y += errqueue.h
> -header-y += ethtool.h
> -header-y += eventpoll.h
> -header-y += fadvise.h
> -header-y += falloc.h
> -header-y += fanotify.h
> -header-y += fb.h
> -header-y += fcntl.h
> -header-y += fd.h
> -header-y += fdreg.h
> -header-y += fib_rules.h
> -header-y += fiemap.h
> -header-y += filter.h
> -header-y += firewire-cdev.h
> -header-y += firewire-constants.h
> -header-y += flat.h
> -header-y += fou.h
> -header-y += fs.h
> -header-y += fsl_hypervisor.h
> -header-y += fuse.h
> -header-y += futex.h
> -header-y += gameport.h
> -header-y += genetlink.h
> -header-y += gen_stats.h
> -header-y += gfs2_ondisk.h
> -header-y += gigaset_dev.h
> -header-y += gpio.h
> -header-y += gsmmux.h
> -header-y += gtp.h
> -header-y += hdlcdrv.h
> -header-y += hdlc.h
> -header-y += hdreg.h
> -header-y += hiddev.h
> -header-y += hid.h
> -header-y += hidraw.h
> -header-y += hpet.h
> -header-y += hsr_netlink.h
> -header-y += hyperv.h
> -header-y += hysdn_if.h
> -header-y += i2c-dev.h
> -header-y += i2c.h
> -header-y += i2o-dev.h
> -header-y += i8k.h
> -header-y += icmp.h
> -header-y += icmpv6.h
> -header-y += if_addr.h
> -header-y += if_addrlabel.h
> -header-y += if_alg.h
> -header-y += if_arcnet.h
> -header-y += if_arp.h
> -header-y += if_bonding.h
> -header-y += if_bridge.h
> -header-y += if_cablemodem.h
> -header-y += if_eql.h
> -header-y += if_ether.h
> -header-y += if_fc.h
> -header-y += if_fddi.h
> -header-y += if_frad.h
> -header-y += if.h
> -header-y += if_hippi.h
> -header-y += if_infiniband.h
> -header-y += if_link.h
> -header-y += if_ltalk.h
> -header-y += if_macsec.h
> -header-y += if_packet.h
> -header-y += if_phonet.h
> -header-y += if_plip.h
> -header-y += if_ppp.h
> -header-y += if_pppol2tp.h
> -header-y += if_pppox.h
> -header-y += if_slip.h
> -header-y += if_team.h
> -header-y += if_tun.h
> -header-y += if_tunnel.h
> -header-y += if_vlan.h
> -header-y += if_x25.h
> -header-y += igmp.h
> -header-y += ila.h
> -header-y += in6.h
> -header-y += inet_diag.h
> -header-y += in.h
> -header-y += inotify.h
> -header-y += input.h
> -header-y += input-event-codes.h
> -header-y += in_route.h
> -header-y += ioctl.h
> -header-y += ip6_tunnel.h
> -header-y += ipc.h
> -header-y += ip.h
> -header-y += ipmi.h
> -header-y += ipmi_msgdefs.h
> -header-y += ipsec.h
> -header-y += ipv6.h
> -header-y += ipv6_route.h
> -header-y += ip_vs.h
> -header-y += ipx.h
> -header-y += irda.h
> -header-y += irqnr.h
> -header-y += isdn_divertif.h
> -header-y += isdn.h
> -header-y += isdnif.h
> -header-y += isdn_ppp.h
> -header-y += iso_fs.h
> -header-y += ivtvfb.h
> -header-y += ivtv.h
> -header-y += ixjuser.h
> -header-y += jffs2.h
> -header-y += joystick.h
> -header-y += kcmp.h
> -header-y += kdev_t.h
> -header-y += kd.h
> -header-y += kernelcapi.h
> -header-y += kernel.h
> -header-y += kernel-page-flags.h
> -header-y += kexec.h
> -header-y += keyboard.h
> -header-y += keyctl.h
> -
> -ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/kvm.h \
> -		  $(srctree)/arch/$(SRCARCH)/include/asm/kvm.h),)
> -header-y += kvm.h
> -endif
> -
> -
> -ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/kvm_para.h \
> -		  $(srctree)/arch/$(SRCARCH)/include/asm/kvm_para.h),)
> -header-y += kvm_para.h
> -endif
> -
> -header-y += hw_breakpoint.h
> -header-y += l2tp.h
> -header-y += libc-compat.h
> -header-y += lirc.h
> -header-y += limits.h
> -header-y += llc.h
> -header-y += loop.h
> -header-y += lp.h
> -header-y += lwtunnel.h
> -header-y += magic.h
> -header-y += major.h
> -header-y += map_to_7segment.h
> -header-y += matroxfb.h
> -header-y += mdio.h
> -header-y += media.h
> -header-y += media-bus-format.h
> -header-y += mei.h
> -header-y += membarrier.h
> -header-y += memfd.h
> -header-y += mempolicy.h
> -header-y += meye.h
> -header-y += mic_common.h
> -header-y += mic_ioctl.h
> -header-y += mii.h
> -header-y += minix_fs.h
> -header-y += mman.h
> -header-y += mmtimer.h
> -header-y += mpls.h
> -header-y += mpls_iptunnel.h
> -header-y += mqueue.h
> -header-y += mroute6.h
> -header-y += mroute.h
> -header-y += msdos_fs.h
> -header-y += msg.h
> -header-y += mtio.h
> -header-y += nbd.h
> -header-y += ncp_fs.h
> -header-y += ncp.h
> -header-y += ncp_mount.h
> -header-y += ncp_no.h
> -header-y += ndctl.h
> -header-y += neighbour.h
> -header-y += netconf.h
> -header-y += netdevice.h
> -header-y += net_dropmon.h
> -header-y += netfilter_arp.h
> -header-y += netfilter_bridge.h
> -header-y += netfilter_decnet.h
> -header-y += netfilter.h
> -header-y += netfilter_ipv4.h
> -header-y += netfilter_ipv6.h
> -header-y += net.h
> -header-y += netlink_diag.h
> -header-y += netlink.h
> -header-y += netrom.h
> -header-y += net_namespace.h
> -header-y += net_tstamp.h
> -header-y += nfc.h
> -header-y += nfs2.h
> -header-y += nfs3.h
> -header-y += nfs4.h
> -header-y += nfs4_mount.h
> -header-y += nfsacl.h
> -header-y += nfs_fs.h
> -header-y += nfs.h
> -header-y += nfs_idmap.h
> -header-y += nfs_mount.h
> -header-y += nl80211.h
> -header-y += n_r3964.h
> -header-y += nubus.h
> -header-y += nvme_ioctl.h
> -header-y += nvram.h
> -header-y += omap3isp.h
> -header-y += omapfb.h
> -header-y += oom.h
> -header-y += openvswitch.h
> -header-y += packet_diag.h
> -header-y += param.h
> -header-y += parport.h
> -header-y += patchkey.h
> -header-y += pci.h
> -header-y += pci_regs.h
> -header-y += perf_event.h
> -header-y += personality.h
> -header-y += pfkeyv2.h
> -header-y += pg.h
> -header-y += phantom.h
> -header-y += phonet.h
> -header-y += pktcdvd.h
> -header-y += pkt_cls.h
> -header-y += pkt_sched.h
> -header-y += pmu.h
> -header-y += poll.h
> -header-y += posix_acl.h
> -header-y += posix_acl_xattr.h
> -header-y += posix_types.h
> -header-y += ppdev.h
> -header-y += ppp-comp.h
> -header-y += ppp_defs.h
> -header-y += ppp-ioctl.h
> -header-y += pps.h
> -header-y += prctl.h
> -header-y += psci.h
> -header-y += ptp_clock.h
> -header-y += ptrace.h
> -header-y += qnx4_fs.h
> -header-y += qnxtypes.h
> -header-y += quota.h
> -header-y += radeonfb.h
> -header-y += random.h
> -header-y += raw.h
> -header-y += rds.h
> -header-y += reboot.h
> -header-y += reiserfs_fs.h
> -header-y += reiserfs_xattr.h
> -header-y += resource.h
> -header-y += rfkill.h
> -header-y += rio_cm_cdev.h
> -header-y += rio_mport_cdev.h
> -header-y += romfs_fs.h
> -header-y += rose.h
> -header-y += route.h
> -header-y += rtc.h
> -header-y += rtnetlink.h
> -header-y += scc.h
> -header-y += sched.h
> -header-y += scif_ioctl.h
> -header-y += screen_info.h
> -header-y += sctp.h
> -header-y += sdla.h
> -header-y += seccomp.h
> -header-y += securebits.h
> -header-y += selinux_netlink.h
> -header-y += sem.h
> -header-y += serial_core.h
> -header-y += serial.h
> -header-y += serial_reg.h
> -header-y += serio.h
> -header-y += shm.h
> -header-y += signalfd.h
> -header-y += signal.h
> -header-y += smiapp.h
> -header-y += snmp.h
> -header-y += sock_diag.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += sonet.h
> -header-y += sonypi.h
> -header-y += soundcard.h
> -header-y += sound.h
> -header-y += stat.h
> -header-y += stddef.h
> -header-y += string.h
> -header-y += suspend_ioctls.h
> -header-y += swab.h
> -header-y += synclink.h
> -header-y += sync_file.h
> -header-y += sysctl.h
> -header-y += sysinfo.h
> -header-y += target_core_user.h
> -header-y += taskstats.h
> -header-y += tcp.h
> -header-y += tcp_metrics.h
> -header-y += telephony.h
> -header-y += termios.h
> -header-y += thermal.h
> -header-y += time.h
> -header-y += times.h
> -header-y += timex.h
> -header-y += tiocl.h
> -header-y += tipc_config.h
> -header-y += tipc_netlink.h
> -header-y += tipc.h
> -header-y += toshiba.h
> -header-y += tty_flags.h
> -header-y += tty.h
> -header-y += types.h
> -header-y += udf_fs_i.h
> -header-y += udp.h
> -header-y += uhid.h
> -header-y += uinput.h
> -header-y += uio.h
> -header-y += uleds.h
> -header-y += ultrasound.h
> -header-y += un.h
> -header-y += unistd.h
> -header-y += unix_diag.h
> -header-y += usbdevice_fs.h
> -header-y += usbip.h
> -header-y += utime.h
> -header-y += utsname.h
> -header-y += uuid.h
> -header-y += uvcvideo.h
> -header-y += v4l2-common.h
> -header-y += v4l2-controls.h
> -header-y += v4l2-dv-timings.h
> -header-y += v4l2-mediabus.h
> -header-y += v4l2-subdev.h
> -header-y += veth.h
> -header-y += vfio.h
> -header-y += vhost.h
> -header-y += videodev2.h
> -header-y += virtio_9p.h
> -header-y += virtio_balloon.h
> -header-y += virtio_blk.h
> -header-y += virtio_config.h
> -header-y += virtio_console.h
> -header-y += virtio_gpu.h
> -header-y += virtio_ids.h
> -header-y += virtio_input.h
> -header-y += virtio_net.h
> -header-y += virtio_pci.h
> -header-y += virtio_ring.h
> -header-y += virtio_rng.h
> -header-y += virtio_scsi.h
> -header-y += virtio_types.h
> -header-y += virtio_vsock.h
> -header-y += virtio_crypto.h
> -header-y += vm_sockets.h
> -header-y += vt.h
> -header-y += vtpm_proxy.h
> -header-y += wait.h
> -header-y += wanrouter.h
> -header-y += watchdog.h
> -header-y += wimax.h
> -header-y += wireless.h
> -header-y += x25.h
> -header-y += xattr.h
> -header-y += xfrm.h
> -header-y += xilinx-v4l2-controls.h
> -header-y += zorro.h
> -header-y += zorro_ids.h
> -header-y += userfaultfd.h
> diff --git a/include/uapi/linux/android/Kbuild b/include/uapi/linux/android/Kbuild
> deleted file mode 100644
> index ca011eec252a..000000000000
> --- a/include/uapi/linux/android/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += binder.h
> diff --git a/include/uapi/linux/byteorder/Kbuild b/include/uapi/linux/byteorder/Kbuild
> deleted file mode 100644
> index 619225b9ff2e..000000000000
> --- a/include/uapi/linux/byteorder/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += big_endian.h
> -header-y += little_endian.h
> diff --git a/include/uapi/linux/caif/Kbuild b/include/uapi/linux/caif/Kbuild
> deleted file mode 100644
> index 43396612d3a3..000000000000
> --- a/include/uapi/linux/caif/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += caif_socket.h
> -header-y += if_caif.h
> diff --git a/include/uapi/linux/can/Kbuild b/include/uapi/linux/can/Kbuild
> deleted file mode 100644
> index 21c91bf25a29..000000000000
> --- a/include/uapi/linux/can/Kbuild
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -# UAPI Header export list
> -header-y += bcm.h
> -header-y += error.h
> -header-y += gw.h
> -header-y += netlink.h
> -header-y += raw.h
> diff --git a/include/uapi/linux/dvb/Kbuild b/include/uapi/linux/dvb/Kbuild
> deleted file mode 100644
> index d40942cfc627..000000000000
> --- a/include/uapi/linux/dvb/Kbuild
> +++ /dev/null
> @@ -1,9 +0,0 @@
> -# UAPI Header export list
> -header-y += audio.h
> -header-y += ca.h
> -header-y += dmx.h
> -header-y += frontend.h
> -header-y += net.h
> -header-y += osd.h
> -header-y += version.h
> -header-y += video.h
> diff --git a/include/uapi/linux/hdlc/Kbuild b/include/uapi/linux/hdlc/Kbuild
> deleted file mode 100644
> index 8c1d2cb75e33..000000000000
> --- a/include/uapi/linux/hdlc/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += ioctl.h
> diff --git a/include/uapi/linux/hsi/Kbuild b/include/uapi/linux/hsi/Kbuild
> deleted file mode 100644
> index a16a00544258..000000000000
> --- a/include/uapi/linux/hsi/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += hsi_char.h cs-protocol.h
> diff --git a/include/uapi/linux/iio/Kbuild b/include/uapi/linux/iio/Kbuild
> deleted file mode 100644
> index 86f76d84c44f..000000000000
> --- a/include/uapi/linux/iio/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += events.h
> -header-y += types.h
> diff --git a/include/uapi/linux/isdn/Kbuild b/include/uapi/linux/isdn/Kbuild
> deleted file mode 100644
> index 89e52850bf29..000000000000
> --- a/include/uapi/linux/isdn/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += capicmd.h
> diff --git a/include/uapi/linux/mmc/Kbuild b/include/uapi/linux/mmc/Kbuild
> deleted file mode 100644
> index 8c1d2cb75e33..000000000000
> --- a/include/uapi/linux/mmc/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += ioctl.h
> diff --git a/include/uapi/linux/netfilter/Kbuild b/include/uapi/linux/netfilter/Kbuild
> deleted file mode 100644
> index 03f194aeadc5..000000000000
> --- a/include/uapi/linux/netfilter/Kbuild
> +++ /dev/null
> @@ -1,89 +0,0 @@
> -# UAPI Header export list
> -header-y += ipset/
> -header-y += nf_conntrack_common.h
> -header-y += nf_conntrack_ftp.h
> -header-y += nf_conntrack_sctp.h
> -header-y += nf_conntrack_tcp.h
> -header-y += nf_conntrack_tuple_common.h
> -header-y += nf_log.h
> -header-y += nf_tables.h
> -header-y += nf_tables_compat.h
> -header-y += nf_nat.h
> -header-y += nfnetlink.h
> -header-y += nfnetlink_acct.h
> -header-y += nfnetlink_compat.h
> -header-y += nfnetlink_conntrack.h
> -header-y += nfnetlink_cthelper.h
> -header-y += nfnetlink_cttimeout.h
> -header-y += nfnetlink_log.h
> -header-y += nfnetlink_queue.h
> -header-y += x_tables.h
> -header-y += xt_AUDIT.h
> -header-y += xt_CHECKSUM.h
> -header-y += xt_CLASSIFY.h
> -header-y += xt_CONNMARK.h
> -header-y += xt_CONNSECMARK.h
> -header-y += xt_CT.h
> -header-y += xt_DSCP.h
> -header-y += xt_HMARK.h
> -header-y += xt_IDLETIMER.h
> -header-y += xt_LED.h
> -header-y += xt_LOG.h
> -header-y += xt_MARK.h
> -header-y += xt_NFLOG.h
> -header-y += xt_NFQUEUE.h
> -header-y += xt_RATEEST.h
> -header-y += xt_SECMARK.h
> -header-y += xt_SYNPROXY.h
> -header-y += xt_TCPMSS.h
> -header-y += xt_TCPOPTSTRIP.h
> -header-y += xt_TEE.h
> -header-y += xt_TPROXY.h
> -header-y += xt_addrtype.h
> -header-y += xt_bpf.h
> -header-y += xt_cgroup.h
> -header-y += xt_cluster.h
> -header-y += xt_comment.h
> -header-y += xt_connbytes.h
> -header-y += xt_connlabel.h
> -header-y += xt_connlimit.h
> -header-y += xt_connmark.h
> -header-y += xt_conntrack.h
> -header-y += xt_cpu.h
> -header-y += xt_dccp.h
> -header-y += xt_devgroup.h
> -header-y += xt_dscp.h
> -header-y += xt_ecn.h
> -header-y += xt_esp.h
> -header-y += xt_hashlimit.h
> -header-y += xt_helper.h
> -header-y += xt_ipcomp.h
> -header-y += xt_iprange.h
> -header-y += xt_ipvs.h
> -header-y += xt_l2tp.h
> -header-y += xt_length.h
> -header-y += xt_limit.h
> -header-y += xt_mac.h
> -header-y += xt_mark.h
> -header-y += xt_multiport.h
> -header-y += xt_nfacct.h
> -header-y += xt_osf.h
> -header-y += xt_owner.h
> -header-y += xt_physdev.h
> -header-y += xt_pkttype.h
> -header-y += xt_policy.h
> -header-y += xt_quota.h
> -header-y += xt_rateest.h
> -header-y += xt_realm.h
> -header-y += xt_recent.h
> -header-y += xt_rpfilter.h
> -header-y += xt_sctp.h
> -header-y += xt_set.h
> -header-y += xt_socket.h
> -header-y += xt_state.h
> -header-y += xt_statistic.h
> -header-y += xt_string.h
> -header-y += xt_tcpmss.h
> -header-y += xt_tcpudp.h
> -header-y += xt_time.h
> -header-y += xt_u32.h
> diff --git a/include/uapi/linux/netfilter/ipset/Kbuild b/include/uapi/linux/netfilter/ipset/Kbuild
> deleted file mode 100644
> index d2680423d9ab..000000000000
> --- a/include/uapi/linux/netfilter/ipset/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += ip_set.h
> -header-y += ip_set_bitmap.h
> -header-y += ip_set_hash.h
> -header-y += ip_set_list.h
> diff --git a/include/uapi/linux/netfilter_arp/Kbuild b/include/uapi/linux/netfilter_arp/Kbuild
> deleted file mode 100644
> index 62d5637cc0ac..000000000000
> --- a/include/uapi/linux/netfilter_arp/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += arp_tables.h
> -header-y += arpt_mangle.h
> diff --git a/include/uapi/linux/netfilter_bridge/Kbuild b/include/uapi/linux/netfilter_bridge/Kbuild
> deleted file mode 100644
> index 0fbad8ef96de..000000000000
> --- a/include/uapi/linux/netfilter_bridge/Kbuild
> +++ /dev/null
> @@ -1,18 +0,0 @@
> -# UAPI Header export list
> -header-y += ebt_802_3.h
> -header-y += ebt_among.h
> -header-y += ebt_arp.h
> -header-y += ebt_arpreply.h
> -header-y += ebt_ip.h
> -header-y += ebt_ip6.h
> -header-y += ebt_limit.h
> -header-y += ebt_log.h
> -header-y += ebt_mark_m.h
> -header-y += ebt_mark_t.h
> -header-y += ebt_nat.h
> -header-y += ebt_nflog.h
> -header-y += ebt_pkttype.h
> -header-y += ebt_redirect.h
> -header-y += ebt_stp.h
> -header-y += ebt_vlan.h
> -header-y += ebtables.h
> diff --git a/include/uapi/linux/netfilter_ipv4/Kbuild b/include/uapi/linux/netfilter_ipv4/Kbuild
> deleted file mode 100644
> index ecb291df390e..000000000000
> --- a/include/uapi/linux/netfilter_ipv4/Kbuild
> +++ /dev/null
> @@ -1,10 +0,0 @@
> -# UAPI Header export list
> -header-y += ip_tables.h
> -header-y += ipt_CLUSTERIP.h
> -header-y += ipt_ECN.h
> -header-y += ipt_LOG.h
> -header-y += ipt_REJECT.h
> -header-y += ipt_TTL.h
> -header-y += ipt_ah.h
> -header-y += ipt_ecn.h
> -header-y += ipt_ttl.h
> diff --git a/include/uapi/linux/netfilter_ipv6/Kbuild b/include/uapi/linux/netfilter_ipv6/Kbuild
> deleted file mode 100644
> index 75a668ca2353..000000000000
> --- a/include/uapi/linux/netfilter_ipv6/Kbuild
> +++ /dev/null
> @@ -1,13 +0,0 @@
> -# UAPI Header export list
> -header-y += ip6_tables.h
> -header-y += ip6t_HL.h
> -header-y += ip6t_LOG.h
> -header-y += ip6t_NPT.h
> -header-y += ip6t_REJECT.h
> -header-y += ip6t_ah.h
> -header-y += ip6t_frag.h
> -header-y += ip6t_hl.h
> -header-y += ip6t_ipv6header.h
> -header-y += ip6t_mh.h
> -header-y += ip6t_opts.h
> -header-y += ip6t_rt.h
> diff --git a/include/uapi/linux/nfsd/Kbuild b/include/uapi/linux/nfsd/Kbuild
> deleted file mode 100644
> index c11bc404053c..000000000000
> --- a/include/uapi/linux/nfsd/Kbuild
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -# UAPI Header export list
> -header-y += cld.h
> -header-y += debug.h
> -header-y += export.h
> -header-y += nfsfh.h
> -header-y += stats.h
> diff --git a/include/uapi/linux/raid/Kbuild b/include/uapi/linux/raid/Kbuild
> deleted file mode 100644
> index e2c3d25405d7..000000000000
> --- a/include/uapi/linux/raid/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += md_p.h
> -header-y += md_u.h
> diff --git a/include/uapi/linux/spi/Kbuild b/include/uapi/linux/spi/Kbuild
> deleted file mode 100644
> index 0cc747eff165..000000000000
> --- a/include/uapi/linux/spi/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += spidev.h
> diff --git a/include/uapi/linux/sunrpc/Kbuild b/include/uapi/linux/sunrpc/Kbuild
> deleted file mode 100644
> index 8e02e47c20fb..000000000000
> --- a/include/uapi/linux/sunrpc/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += debug.h
> diff --git a/include/uapi/linux/tc_act/Kbuild b/include/uapi/linux/tc_act/Kbuild
> deleted file mode 100644
> index e3db7403296f..000000000000
> --- a/include/uapi/linux/tc_act/Kbuild
> +++ /dev/null
> @@ -1,15 +0,0 @@
> -# UAPI Header export list
> -header-y += tc_csum.h
> -header-y += tc_defact.h
> -header-y += tc_gact.h
> -header-y += tc_ipt.h
> -header-y += tc_mirred.h
> -header-y += tc_nat.h
> -header-y += tc_pedit.h
> -header-y += tc_skbedit.h
> -header-y += tc_vlan.h
> -header-y += tc_bpf.h
> -header-y += tc_connmark.h
> -header-y += tc_ife.h
> -header-y += tc_tunnel_key.h
> -header-y += tc_skbmod.h
> diff --git a/include/uapi/linux/tc_ematch/Kbuild b/include/uapi/linux/tc_ematch/Kbuild
> deleted file mode 100644
> index 53fca3925535..000000000000
> --- a/include/uapi/linux/tc_ematch/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += tc_em_cmp.h
> -header-y += tc_em_meta.h
> -header-y += tc_em_nbyte.h
> -header-y += tc_em_text.h
> diff --git a/include/uapi/linux/usb/Kbuild b/include/uapi/linux/usb/Kbuild
> deleted file mode 100644
> index 4cc4d6e7e523..000000000000
> --- a/include/uapi/linux/usb/Kbuild
> +++ /dev/null
> @@ -1,12 +0,0 @@
> -# UAPI Header export list
> -header-y += audio.h
> -header-y += cdc.h
> -header-y += cdc-wdm.h
> -header-y += ch11.h
> -header-y += ch9.h
> -header-y += functionfs.h
> -header-y += g_printer.h
> -header-y += gadgetfs.h
> -header-y += midi.h
> -header-y += tmc.h
> -header-y += video.h
> diff --git a/include/uapi/linux/wimax/Kbuild b/include/uapi/linux/wimax/Kbuild
> deleted file mode 100644
> index 1c97be49971f..000000000000
> --- a/include/uapi/linux/wimax/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += i2400m.h
> diff --git a/include/uapi/misc/Kbuild b/include/uapi/misc/Kbuild
> deleted file mode 100644
> index e96cae7d58c9..000000000000
> --- a/include/uapi/misc/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# misc Header export list
> -header-y += cxl.h
> diff --git a/include/uapi/mtd/Kbuild b/include/uapi/mtd/Kbuild
> deleted file mode 100644
> index 5a691e10cd0e..000000000000
> --- a/include/uapi/mtd/Kbuild
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -# UAPI Header export list
> -header-y += inftl-user.h
> -header-y += mtd-abi.h
> -header-y += mtd-user.h
> -header-y += nftl-user.h
> -header-y += ubi-user.h
> diff --git a/include/uapi/rdma/Kbuild b/include/uapi/rdma/Kbuild
> deleted file mode 100644
> index 82bdf5626859..000000000000
> --- a/include/uapi/rdma/Kbuild
> +++ /dev/null
> @@ -1,18 +0,0 @@
> -# UAPI Header export list
> -header-y += ib_user_cm.h
> -header-y += ib_user_mad.h
> -header-y += ib_user_sa.h
> -header-y += ib_user_verbs.h
> -header-y += rdma_netlink.h
> -header-y += rdma_user_cm.h
> -header-y += hfi/
> -header-y += rdma_user_rxe.h
> -header-y += cxgb3-abi.h
> -header-y += cxgb4-abi.h
> -header-y += mlx4-abi.h
> -header-y += mlx5-abi.h
> -header-y += mthca-abi.h
> -header-y += nes-abi.h
> -header-y += ocrdma-abi.h
> -header-y += hns-abi.h
> -header-y += vmw_pvrdma-abi.h
> diff --git a/include/uapi/rdma/hfi/Kbuild b/include/uapi/rdma/hfi/Kbuild
> deleted file mode 100644
> index ef23c294fc71..000000000000
> --- a/include/uapi/rdma/hfi/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += hfi1_user.h
> diff --git a/include/uapi/scsi/Kbuild b/include/uapi/scsi/Kbuild
> deleted file mode 100644
> index d791e0ad509d..000000000000
> --- a/include/uapi/scsi/Kbuild
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -# UAPI Header export list
> -header-y += fc/
> -header-y += scsi_bsg_fc.h
> -header-y += scsi_netlink.h
> -header-y += scsi_netlink_fc.h
> -header-y += cxlflash_ioctl.h
> diff --git a/include/uapi/scsi/fc/Kbuild b/include/uapi/scsi/fc/Kbuild
> deleted file mode 100644
> index 5ead9fac265c..000000000000
> --- a/include/uapi/scsi/fc/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += fc_els.h
> -header-y += fc_fs.h
> -header-y += fc_gs.h
> -header-y += fc_ns.h
> diff --git a/include/uapi/sound/Kbuild b/include/uapi/sound/Kbuild
> deleted file mode 100644
> index 9578d8bdbf31..000000000000
> --- a/include/uapi/sound/Kbuild
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -# UAPI Header export list
> -header-y += asequencer.h
> -header-y += asoc.h
> -header-y += asound.h
> -header-y += asound_fm.h
> -header-y += compress_offload.h
> -header-y += compress_params.h
> -header-y += emu10k1.h
> -header-y += firewire.h
> -header-y += hdsp.h
> -header-y += hdspm.h
> -header-y += sb16_csp.h
> -header-y += sfnt_info.h
> -header-y += tlv.h
> -header-y += usb_stream.h
> -header-y += snd_sst_tokens.h
> diff --git a/include/uapi/video/Kbuild b/include/uapi/video/Kbuild
> deleted file mode 100644
> index ac7203bb32cc..000000000000
> --- a/include/uapi/video/Kbuild
> +++ /dev/null
> @@ -1,4 +0,0 @@
> -# UAPI Header export list
> -header-y += edid.h
> -header-y += sisfb.h
> -header-y += uvesafb.h
> diff --git a/include/uapi/xen/Kbuild b/include/uapi/xen/Kbuild
> deleted file mode 100644
> index 5c459628e8c7..000000000000
> --- a/include/uapi/xen/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += evtchn.h
> -header-y += gntalloc.h
> -header-y += gntdev.h
> -header-y += privcmd.h
> diff --git a/include/video/Kbuild b/include/video/Kbuild
> deleted file mode 100644
> index e69de29bb2d1..000000000000
> diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
> index 876b42cfede4..bb93f8466a35 100644
> --- a/scripts/Makefile.headersinst
> +++ b/scripts/Makefile.headersinst
> @@ -1,17 +1,18 @@
>  # ==========================================================================
>  # Installing headers
>  #
> -# header-y  - list files to be installed. They are preprocessed
> -#             to remove __KERNEL__ section of the file
> -# genhdr-y  - Same as header-y but in a generated/ directory
> +# All headers under include/uapi, include/generated/uapi,
> +# arch/<arch>/include/uapi/asm and /include/generated/uapi/asm are exported.
> +# They are preprocessed to remove __KERNEL__ section of the file.
>  #
>  # ==========================================================================
>  
>  # generated header directory
>  gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
>  
> +# Kbuild file is optional
>  kbuild-file := $(srctree)/$(obj)/Kbuild
> -include $(kbuild-file)
> +-include $(kbuild-file)
>  
>  # called may set destination dir (when installing to asm/)
>  _dst := $(if $(dst),$(dst),$(obj))
> @@ -25,9 +26,12 @@ include scripts/Kbuild.include
>  
>  installdir    := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
>  
> -header-y      := $(sort $(header-y))
> -subdirs       := $(patsubst %/,%,$(filter %/, $(header-y)))
> -header-y      := $(filter-out %/, $(header-y))
> +subdirs       := $(patsubst $(srctree)/$(obj)/%/.,%,$(wildcard $(srctree)/$(obj)/*/.))
> +subdirs       += $(subdir-y)
> +header-files  := $(notdir $(wildcard $(srctree)/$(obj)/*.h))
> +header-files  += $(notdir $(wildcard $(srctree)/$(obj)/*.agh))
> +genhdr-files  := $(notdir $(wildcard $(srctree)/$(gen)/*.h))
> +genhdr-files  := $(filter-out $(header-files), $(genhdr-files))
>  
>  # files used to track state of install/check
>  install-file  := $(installdir)/.install
> @@ -35,26 +39,17 @@ check-file    := $(installdir)/.check
>  
>  # generic-y list all files an architecture uses from asm-generic
>  # Use this to build a list of headers which require a wrapper
> -wrapper-files := $(filter $(header-y), $(generic-y))
> +generic-files := $(notdir $(wildcard $(srctree)/include/uapi/asm-generic/*.h))
> +wrapper-files := $(filter $(generic-files), $(generic-y))
> +wrapper-files := $(filter-out $(header-files), $(wrapper-files))
>  
>  srcdir        := $(srctree)/$(obj)
>  gendir        := $(objtree)/$(gen)
>  
>  # all headers files for this dir
> -header-y      := $(filter-out $(generic-y), $(header-y))
> -all-files     := $(header-y) $(genhdr-y) $(wrapper-files)
> +all-files     := $(header-files) $(genhdr-files) $(wrapper-files)
>  output-files  := $(addprefix $(installdir)/, $(all-files))
>  
> -# Check that all expected files exist
> -$(foreach hdr, $(header-y), \
> -  $(if $(wildcard $(srcdir)/$(hdr)),, \
> -       $(error Missing UAPI file $(srcdir)/$(hdr)) \
> -   ))
> -$(foreach hdr, $(genhdr-y), \
> -  $(if	$(wildcard $(gendir)/$(hdr)),, \
> -       $(error Missing generated UAPI file $(gendir)/$(hdr)) \
> -  ))
> -
>  # Work out what needs to be removed
>  oldheaders    := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
>  unwanted      := $(filter-out $(all-files),$(oldheaders))
> @@ -67,8 +62,8 @@ printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
>  quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
>                              file$(if $(word 2, $(all-files)),s))
>        cmd_install = \
> -        $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-y); \
> -        $(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-y); \
> +        $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-files); \
> +        $(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-files); \
>          for F in $(wrapper-files); do                                   \
>                  echo "\#include <asm-generic/$$F>" > $(installdir)/$$F;    \
>          done;                                                           \


From - Thu Nov 08 21:39:29 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Bart Van Assche <Bart.VanAssche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sparc,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.kernel.pci,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 2/9] Move dma_ops from archdata into struct device
Date: Wed, 11 Jan 2017 18:17:03 +0000
Lines: 38
Approved: news@gmane.org
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On Wed, 2017-01-11 at 07:48 +0100, Greg Kroah-Hartman wrote:
> On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> > Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> > transfer data between memory and PCIe adapter. Because of performance
> > reasons it is important that the CPU cache is not flushed when such
> > drivers transfer data. Make this possible by allowing these drivers to
> > override the dma_map_ops pointer. Additionally, introduce the function
> > set_dma_ops() that will be used by a later patch in this series.
> =

> When you say things like "additionally", that's a huge flag that this
> needs to be split up into multiple patches.=A0=A0No need to add
> set_dma_ops() here in this patch.

Hello Greg,

Some architectures already define a=A0set_dma_ops() function. So what this
patch does is to move both the dma_ops pointer and the set_dma_ops()
function from architecture-specific to architecture independent code. I
don't think that it is possible to separate these two changes. But I
understand that how I formulated the patch description caused confusion. I
will rewrite the patch description to make it more clear before I repost
this patch series.

> And I'd argue that it should be dma_ops_set(), and dma_ops_get(), just
> to keep the namespace sane, but that's probably a different set of
> patches...

Every time I rebase and retest this patch series on top of a new kernel
version I have to modify some of the patches to compensate for changes in
the architecture code. So I expect that once Linus merges these patches that
he will have to resolve one or more merge conflicts. Including a rename of
the functions that query and set the dma_ops pointer in this patch series
would increase the number of merge conflicts triggered by this patch series
and would make Linus' job harder. So I hope that you will allow me to
postpone that rename until a later time ...

Bart.

From - Thu Nov 08 21:39:29 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sparc,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.kernel.pci,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 2/9] Move dma_ops from archdata into struct device
Date: Wed, 11 Jan 2017 21:29:49 +0100
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To: Bart Van Assche <Bart.VanAssche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
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On Wed, Jan 11, 2017 at 06:03:15PM +0000, Bart Van Assche wrote:
> On Wed, 2017-01-11 at 07:46 +0100, Greg Kroah-Hartman wrote:
> > On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> > > Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> > > transfer data between memory and PCIe adapter. Because of performance
> > > reasons it is important that the CPU cache is not flushed when such
> > > drivers transfer data. Make this possible by allowing these drivers to
> > > override the dma_map_ops pointer. Additionally, introduce the function
> > > set_dma_ops() that will be used by a later patch in this series.
> > > =

> > > Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
> > > Cc: [ ... ]
> > =

> > That's a crazy cc: list, you should break this up into smaller pieces,
> > otherwise it's going to bounce...
> =

> That's a subset of what scripts/get_maintainer.pl came up with. Suggestio=
ns
> for a more appropriate cc-list for a patch like this that touches all
> architectures would be welcome.

You need to break this patch up into a series that can be applied in
sequence, don't change everything all at once.  That's a mess to merge,
as you are finding out.

> > > diff --git a/include/linux/device.h b/include/linux/device.h
> > > index 491b4c0ca633..c7cb225d36b0 100644
> > > --- a/include/linux/device.h
> > > +++ b/include/linux/device.h
> > > @@ -885,6 +885,8 @@ struct dev_links_info {
> > > =A0 * a higher-level representation of the device.
> > > =A0 */
> > > =A0struct device {
> > > +	const struct dma_map_ops *dma_ops; /* See also get_dma_ops() */
> > > +
> > > =A0	struct device		*parent;
> > > =A0
> > > =A0	struct device_private	*p;
> > =

> > Why not put this new pointer down with the other dma fields in this
> > structure?=A0=A0Any specific reason it needs to be first?
> =

> Are there CPU architectures for which access to the first member of a
> structure can be encoded and/or executed more efficiently than access to
> other members of a structure? If not, I'm fine with moving the new pointer
> further down.

Why do you think that your pointer is the one that gets to be "most
efficient"?  :)

Seriously, no, it doesn't matter at all, it's all just pointer math
which is very fast.  Put it with the other stuff please, don't try to
optimize something without ever measuring it.

thanks,

greg k-h

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Subject: Re: [PATCH 2/9] Move dma_ops from archdata into struct device
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On Wed, Jan 11, 2017 at 06:17:03PM +0000, Bart Van Assche wrote:
> On Wed, 2017-01-11 at 07:48 +0100, Greg Kroah-Hartman wrote:
> > On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> > > Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> > > transfer data between memory and PCIe adapter. Because of performance
> > > reasons it is important that the CPU cache is not flushed when such
> > > drivers transfer data. Make this possible by allowing these drivers to
> > > override the dma_map_ops pointer. Additionally, introduce the function
> > > set_dma_ops() that will be used by a later patch in this series.
> > =

> > When you say things like "additionally", that's a huge flag that this
> > needs to be split up into multiple patches.=A0=A0No need to add
> > set_dma_ops() here in this patch.
> =

> Hello Greg,
> =

> Some architectures already define a=A0set_dma_ops() function. So what this
> patch does is to move both the dma_ops pointer and the set_dma_ops()
> function from architecture-specific to architecture independent code. I
> don't think that it is possible to separate these two changes. But I
> understand that how I formulated the patch description caused confusion. I
> will rewrite the patch description to make it more clear before I repost
> this patch series.

I think you should separate it out into multiple patches, this is a
mess, as you say below:

> > And I'd argue that it should be dma_ops_set(), and dma_ops_get(), just
> > to keep the namespace sane, but that's probably a different set of
> > patches...
> =

> Every time I rebase and retest this patch series on top of a new kernel
> version I have to modify some of the patches to compensate for changes in
> the architecture code. So I expect that once Linus merges these patches t=
hat
> he will have to resolve one or more merge conflicts. Including a rename of
> the functions that query and set the dma_ops pointer in this patch series
> would increase the number of merge conflicts triggered by this patch seri=
es
> and would make Linus' job harder. So I hope that you will allow me to
> postpone that rename until a later time ...

That's a big sign that your patch series needs work.  Break it up into
smaller pieces, it should be possible, which will make merges easier
(well, different in a way.)

Good luck, tree-wide changes are not simple.

greg k-h

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Subject: Re: [PATCH 2/9] Move dma_ops from archdata into struct device
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--_004_1484173670261928camelsandiskcom_
Content-Type: text/plain; charset="iso-8859-1"
Content-ID: <8CA25A75FA1D5A409ACFDA797937F603-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
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On Wed, 2017-01-11 at 21:31 +0100, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org wrote:
> That's a big sign that your patch series needs work.  Break it up into
> smaller pieces, it should be possible, which will make merges easier
> (well, different in a way.)

Hello Greg,

Can you have a look at the attached patches? These three patches are a
splitup of the single patch at the start of this e-mail thread.

Thanks,

Bart.=

--_004_1484173670261928camelsandiskcom_
Content-Type: text/x-patch;
	name="0001-treewide-Move-dma_ops-from-struct-dev_archdata-into-.patch"
Content-Description: 0001-treewide-Move-dma_ops-from-struct-dev_archdata-into-.patch
Content-Disposition: attachment;
	filename="0001-treewide-Move-dma_ops-from-struct-dev_archdata-into-.patch";
	size=22418; creation-date="Wed, 11 Jan 2017 22:28:04 GMT";
	modification-date="Wed, 11 Jan 2017 22:28:04 GMT"
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From - Thu Nov 08 21:39:30 2018
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From: "gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org" <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sparc,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.kernel.pci,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 2/9] Move dma_ops from archdata into struct device
Date: Thu, 12 Jan 2017 08:35:11 +0100
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To: Bart Van Assche <Bart.VanAssche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
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On Wed, Jan 11, 2017 at 10:28:05PM +0000, Bart Van Assche wrote:
> On Wed, 2017-01-11 at 21:31 +0100, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org wrote:
> > That's a big sign that your patch series needs work.  Break it up into
> > smaller pieces, it should be possible, which will make merges easier
> > (well, different in a way.)
> 
> Hello Greg,
> 
> Can you have a look at the attached patches? These three patches are a
> splitup of the single patch at the start of this e-mail thread.

Please send them in the proper format (i.e. one patch per email), and I
will be glad to review them.  Otherwise it's really hard to do so, would
you want to review attachments?

thanks,

greg k-h

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From: Michal Hocko <mhocko@kernel.org>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.ia64,gmane.linux.ports.parisc
Subject: [RFC PATCH 3/4] arch, mm: remove arch specific show_mem
Date: Thu, 12 Jan 2017 14:16:58 +0100
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Cc: Andrew Morton <akpm@linux-foundation.org>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Mel Gorman <mgorman@suse.de>,
	David Rientjes <rientjes@google.com>,
	Michal Hocko <mhocko@suse.com>,
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From: Michal Hocko <mhocko@suse.com>

We have a generic implementation for quite some time already. If there
is any arch specific information to be printed then we should add a
callback called from the generic code rather than duplicate the whole
show_mem. The current code has resulted in the code duplication and
the output divergence which is both confusing and adds maintainance
costs. Let's just get rid of this mess.

Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: linux-ia64@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
---
 arch/ia64/mm/init.c      | 48 -----------------------------------------------
 arch/parisc/mm/init.c    | 49 ------------------------------------------------
 arch/sparc/mm/init_32.c  | 11 -----------
 arch/tile/mm/pgtable.c   | 45 --------------------------------------------
 arch/unicore32/mm/init.c | 44 -------------------------------------------
 5 files changed, 197 deletions(-)

diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 1841ef69183d..46afc8d5ebfc 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -684,51 +684,3 @@ int arch_remove_memory(u64 start, u64 size)
 }
 #endif
 #endif
-
-/**
- * show_mem - give short summary of memory stats
- *
- * Shows a simple page count of reserved and used pages in the system.
- * For discontig machines, it does this on a per-pgdat basis.
- */
-void show_mem(unsigned int filter)
-{
-	int total_reserved = 0;
-	unsigned long total_present = 0;
-	pg_data_t *pgdat;
-
-	printk(KERN_INFO "Mem-info:\n");
-	show_free_areas(filter);
-	printk(KERN_INFO "Node memory in pages:\n");
-	for_each_online_pgdat(pgdat) {
-		unsigned long present;
-		unsigned long flags;
-		int reserved = 0;
-		int nid = pgdat->node_id;
-		int zoneid;
-
-		if (skip_free_areas_node(filter, nid))
-			continue;
-		pgdat_resize_lock(pgdat, &flags);
-
-		for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
-			struct zone *zone = &pgdat->node_zones[zoneid];
-			if (!populated_zone(zone))
-				continue;
-
-			reserved += zone->present_pages - zone->managed_pages;
-		}
-		present = pgdat->node_present_pages;
-
-		pgdat_resize_unlock(pgdat, &flags);
-		total_present += present;
-		total_reserved += reserved;
-		printk(KERN_INFO "Node %4d:  RAM: %11ld, rsvd: %8d, ",
-		       nid, present, reserved);
-	}
-	printk(KERN_INFO "%ld pages of RAM\n", total_present);
-	printk(KERN_INFO "%d reserved pages\n", total_reserved);
-	printk(KERN_INFO "Total of %ld pages in page table cache\n",
-	       quicklist_total_size());
-	printk(KERN_INFO "%ld free buffer pages\n", nr_free_buffer_pages());
-}
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index e02ada312be8..64bfdf636f39 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -653,55 +653,6 @@ void __init mem_init(void)
 unsigned long *empty_zero_page __read_mostly;
 EXPORT_SYMBOL(empty_zero_page);
 
-void show_mem(unsigned int filter)
-{
-	int total = 0,reserved = 0;
-	pg_data_t *pgdat;
-
-	printk(KERN_INFO "Mem-info:\n");
-	show_free_areas(filter);
-
-	for_each_online_pgdat(pgdat) {
-		unsigned long flags;
-		int zoneid;
-
-		pgdat_resize_lock(pgdat, &flags);
-		for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
-			struct zone *zone = &pgdat->node_zones[zoneid];
-			if (!populated_zone(zone))
-				continue;
-
-			total += zone->present_pages;
-			reserved = zone->present_pages - zone->managed_pages;
-		}
-		pgdat_resize_unlock(pgdat, &flags);
-	}
-
-	printk(KERN_INFO "%d pages of RAM\n", total);
-	printk(KERN_INFO "%d reserved pages\n", reserved);
-
-#ifdef CONFIG_DISCONTIGMEM
-	{
-		struct zonelist *zl;
-		int i, j;
-
-		for (i = 0; i < npmem_ranges; i++) {
-			zl = node_zonelist(i, 0);
-			for (j = 0; j < MAX_NR_ZONES; j++) {
-				struct zoneref *z;
-				struct zone *zone;
-
-				printk("Zone list for zone %d on node %d: ", j, i);
-				for_each_zone_zonelist(zone, z, zl, j)
-					printk("[%d/%s] ", zone_to_nid(zone),
-								zone->name);
-				printk("\n");
-			}
-		}
-	}
-#endif
-}
-
 /*
  * pagetable_init() sets up the page tables
  *
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index eb8287155279..c6afe98de4d9 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -55,17 +55,6 @@ extern unsigned int sparc_ramdisk_size;
 
 unsigned long highstart_pfn, highend_pfn;
 
-void show_mem(unsigned int filter)
-{
-	printk("Mem-info:\n");
-	show_free_areas(filter);
-	printk("Free swap:       %6ldkB\n",
-	       get_nr_swap_pages() << (PAGE_SHIFT-10));
-	printk("%ld pages of RAM\n", totalram_pages);
-	printk("%ld free pages\n", nr_free_pages());
-}
-
-
 unsigned long last_valid_pfn;
 
 unsigned long calc_highpages(void)
diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c
index 7cc6ee7f1a58..492a7361e58e 100644
--- a/arch/tile/mm/pgtable.c
+++ b/arch/tile/mm/pgtable.c
@@ -36,51 +36,6 @@
 
 #define K(x) ((x) << (PAGE_SHIFT-10))
 
-/*
- * The normal show_free_areas() is too verbose on Tile, with dozens
- * of processors and often four NUMA zones each with high and lowmem.
- */
-void show_mem(unsigned int filter)
-{
-	struct zone *zone;
-
-	pr_err("Active:%lu inactive:%lu dirty:%lu writeback:%lu unstable:%lu free:%lu\n slab:%lu mapped:%lu pagetables:%lu bounce:%lu pagecache:%lu swap:%lu\n",
-	       (global_node_page_state(NR_ACTIVE_ANON) +
-		global_node_page_state(NR_ACTIVE_FILE)),
-	       (global_node_page_state(NR_INACTIVE_ANON) +
-		global_node_page_state(NR_INACTIVE_FILE)),
-	       global_node_page_state(NR_FILE_DIRTY),
-	       global_node_page_state(NR_WRITEBACK),
-	       global_node_page_state(NR_UNSTABLE_NFS),
-	       global_page_state(NR_FREE_PAGES),
-	       (global_page_state(NR_SLAB_RECLAIMABLE) +
-		global_page_state(NR_SLAB_UNRECLAIMABLE)),
-	       global_node_page_state(NR_FILE_MAPPED),
-	       global_page_state(NR_PAGETABLE),
-	       global_page_state(NR_BOUNCE),
-	       global_node_page_state(NR_FILE_PAGES),
-	       get_nr_swap_pages());
-
-	for_each_zone(zone) {
-		unsigned long flags, order, total = 0, largest_order = -1;
-
-		if (!populated_zone(zone))
-			continue;
-
-		spin_lock_irqsave(&zone->lock, flags);
-		for (order = 0; order < MAX_ORDER; order++) {
-			int nr = zone->free_area[order].nr_free;
-			total += nr << order;
-			if (nr)
-				largest_order = order;
-		}
-		spin_unlock_irqrestore(&zone->lock, flags);
-		pr_err("Node %d %7s: %lukB (largest %luKb)\n",
-		       zone_to_nid(zone), zone->name,
-		       K(total), largest_order ? K(1UL) << largest_order : 0);
-	}
-}
-
 /**
  * shatter_huge_page() - ensure a given address is mapped by a small page.
  *
diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
index be2bde9b07cf..f4950fbfe574 100644
--- a/arch/unicore32/mm/init.c
+++ b/arch/unicore32/mm/init.c
@@ -57,50 +57,6 @@ early_param("initrd", early_initrd);
  */
 struct meminfo meminfo;
 
-void show_mem(unsigned int filter)
-{
-	int free = 0, total = 0, reserved = 0;
-	int shared = 0, cached = 0, slab = 0, i;
-	struct meminfo *mi = &meminfo;
-
-	printk(KERN_DEFAULT "Mem-info:\n");
-	show_free_areas(filter);
-
-	for_each_bank(i, mi) {
-		struct membank *bank = &mi->bank[i];
-		unsigned int pfn1, pfn2;
-		struct page *page, *end;
-
-		pfn1 = bank_pfn_start(bank);
-		pfn2 = bank_pfn_end(bank);
-
-		page = pfn_to_page(pfn1);
-		end  = pfn_to_page(pfn2 - 1) + 1;
-
-		do {
-			total++;
-			if (PageReserved(page))
-				reserved++;
-			else if (PageSwapCache(page))
-				cached++;
-			else if (PageSlab(page))
-				slab++;
-			else if (!page_count(page))
-				free++;
-			else
-				shared += page_count(page) - 1;
-			page++;
-		} while (page < end);
-	}
-
-	printk(KERN_DEFAULT "%d pages of RAM\n", total);
-	printk(KERN_DEFAULT "%d free pages\n", free);
-	printk(KERN_DEFAULT "%d reserved pages\n", reserved);
-	printk(KERN_DEFAULT "%d slab pages\n", slab);
-	printk(KERN_DEFAULT "%d pages shared\n", shared);
-	printk(KERN_DEFAULT "%d pages swap cached\n", cached);
-}
-
 static void __init find_limits(unsigned long *min, unsigned long *max_low,
 	unsigned long *max_high)
 {
-- 
2.11.0

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From: Mel Gorman <mgorman@suse.de>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.ia64,gmane.linux.ports.parisc
Subject: Re: [RFC PATCH 3/4] arch, mm: remove arch specific show_mem
Date: Thu, 12 Jan 2017 13:48:46 +0000
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Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
	Johannes Weiner <hannes@cmpxchg.org>,
	David Rientjes <rientjes@google.com>,
	Michal Hocko <mhocko@suse.com>, Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
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To: Michal Hocko <mhocko@kernel.org>
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On Thu, Jan 12, 2017 at 02:16:58PM +0100, Michal Hocko wrote:
> From: Michal Hocko <mhocko@suse.com>
> 
> We have a generic implementation for quite some time already. If there
> is any arch specific information to be printed then we should add a
> callback called from the generic code rather than duplicate the whole
> show_mem. The current code has resulted in the code duplication and
> the output divergence which is both confusing and adds maintainance
> costs. Let's just get rid of this mess.
> 
> Cc: Tony Luck <tony.luck@intel.com>
> Cc: Fenghua Yu <fenghua.yu@intel.com>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Chris Metcalf <cmetcalf@mellanox.com>
> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
> Cc: linux-ia64@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Signed-off-by: Michal Hocko <mhocko@suse.com>

This is overdue. The last time it was brought up, no one objected to
arch-specific information from show_mem but maybe they weren't looking
that carefully. For me;

Acked-by: Mel Gorman <mgorman@suse.de>

-- 
Mel Gorman
SUSE Labs

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From - Thu Nov 08 21:39:30 2018
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From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kbuild.devel,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.comp.video.dri.devel,gmane.linux.network,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kernel.mmc,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.nfs,gmane.linux.raid,gmane.linux.kernel.spi.devel,gmane.linux.drivers.mtd,gmane.linux.drivers.rdma,gmane.linux.scsi.open-fcoe.devel,gmane.linux.alsa.devel
Subject: Re: [PATCH v2 7/7] uapi: export all headers under uapi directories
Date: Thu, 12 Jan 2017 16:52:57 +0100
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Le 09/01/2017  13:56, Christoph Hellwig a crit :
> On Fri, Jan 06, 2017 at 10:43:59AM +0100, Nicolas Dichtel wrote:
>> Regularly, when a new header is created in include/uapi/, the developer
>> forgets to add it in the corresponding Kbuild file. This error is usually
>> detected after the release is out.
>>
>> In fact, all headers under uapi directories should be exported, thus it's
>> useless to have an exhaustive list.
>>
>> After this patch, the following files, which were not exported, are now
>> exported (with make headers_install_all):
> 
> ... snip ...
> 
>> linux/genwqe/.install
>> linux/genwqe/..install.cmd
>> linux/cifs/.install
>> linux/cifs/..install.cmd
> 
> I'm pretty sure these should not be exported!
> 
Those files are created in every directory:
$ find usr/include/ -name '\.\.install.cmd' | wc -l
71
$ find usr/include/ -name '\.install' | wc -l
71

See also
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/scripts/Makefile.headersinst#n32


Thank you,
Nicolas
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From - Thu Nov 08 21:39:30 2018
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Subject: Re: [PATCH v2 7/7] uapi: export all headers under uapi directories
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To: Nicolas Dichtel <nicolas.dichtel@6wind.com>
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On Thursday 2017-01-12 16:52, Nicolas Dichtel wrote:

>Le 09/01/2017 à 13:56, Christoph Hellwig a écrit :
>> On Fri, Jan 06, 2017 at 10:43:59AM +0100, Nicolas Dichtel wrote:
>>> Regularly, when a new header is created in include/uapi/, the developer
>>> forgets to add it in the corresponding Kbuild file. This error is usually
>>> detected after the release is out.
>>>
>>> In fact, all headers under uapi directories should be exported, thus it's
>>> useless to have an exhaustive list.
>>>
>>> After this patch, the following files, which were not exported, are now
>>> exported (with make headers_install_all):
>> 
>> ... snip ...
>> 
>>> linux/genwqe/.install
>>> linux/genwqe/..install.cmd
>>> linux/cifs/.install
>>> linux/cifs/..install.cmd
>> 
>> I'm pretty sure these should not be exported!
>> 
>Those files are created in every directory:
>$ find usr/include/ -name '\.\.install.cmd' | wc -l
>71

That still does not mean they should be exported.

Anything but headers (and directories as a skeleton structure) is maximally suspicious.



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Subject: Re: [PATCH v2 7/7] uapi: export all headers under uapi directories
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To: Jan Engelhardt <jengelh@inai.de>
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Le 12/01/2017 à 17:28, Jan Engelhardt a écrit :
> On Thursday 2017-01-12 16:52, Nicolas Dichtel wrote:
> 
>> Le 09/01/2017 à 13:56, Christoph Hellwig a écrit :
>>> On Fri, Jan 06, 2017 at 10:43:59AM +0100, Nicolas Dichtel wrote:
>>>> Regularly, when a new header is created in include/uapi/, the developer
>>>> forgets to add it in the corresponding Kbuild file. This error is usually
>>>> detected after the release is out.
>>>>
>>>> In fact, all headers under uapi directories should be exported, thus it's
>>>> useless to have an exhaustive list.
>>>>
>>>> After this patch, the following files, which were not exported, are now
>>>> exported (with make headers_install_all):
>>>
>>> ... snip ...
>>>
>>>> linux/genwqe/.install
>>>> linux/genwqe/..install.cmd
>>>> linux/cifs/.install
>>>> linux/cifs/..install.cmd
>>>
>>> I'm pretty sure these should not be exported!
>>>
>> Those files are created in every directory:
>> $ find usr/include/ -name '\.\.install.cmd' | wc -l
>> 71
> 
> That still does not mean they should be exported.
> 
> Anything but headers (and directories as a skeleton structure) is maximally suspicious.
> 
What I was trying to say is that I export those directories like other are.
Removing those files is not related to that series.


Regards,
Nicolas
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On 1/12/2017 8:16 AM, Michal Hocko wrote:
> From: Michal Hocko<mhocko@suse.com>
>
> We have a generic implementation for quite some time already. If there
> is any arch specific information to be printed then we should add a
> callback called from the generic code rather than duplicate the whole
> show_mem. The current code has resulted in the code duplication and
> the output divergence which is both confusing and adds maintainance
> costs. Let's just get rid of this mess.
>
> Cc: Tony Luck<tony.luck@intel.com>
> Cc: Fenghua Yu<fenghua.yu@intel.com>
> Cc: "James E.J. Bottomley"<jejb@parisc-linux.org>
> Cc: Helge Deller<deller@gmx.de>
> Cc: "David S. Miller"<davem@davemloft.net>
> Cc: Chris Metcalf<cmetcalf@mellanox.com>
> Cc: Guan Xuetao<gxt@mprc.pku.edu.cn>
> Cc:linux-ia64@vger.kernel.org
> Cc:linux-parisc@vger.kernel.org
> Signed-off-by: Michal Hocko<mhocko@suse.com>
> ---
>   arch/ia64/mm/init.c      | 48 -----------------------------------------------
>   arch/parisc/mm/init.c    | 49 ------------------------------------------------
>   arch/sparc/mm/init_32.c  | 11 -----------
>   arch/tile/mm/pgtable.c   | 45 --------------------------------------------
>   arch/unicore32/mm/init.c | 44 -------------------------------------------
>   5 files changed, 197 deletions(-)

Acked-by: Chris Metcalf <cmetcalf@mellanox.com> [for tile]

-- 
Chris Metcalf, Mellanox Technologies
http://www.mellanox.com

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Cc: Andrew Morton <akpm@linux-foundation.org>,
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On 12.01.2017 14:16, Michal Hocko wrote:
> From: Michal Hocko <mhocko@suse.com>
> 
> We have a generic implementation for quite some time already. If there
> is any arch specific information to be printed then we should add a
> callback called from the generic code rather than duplicate the whole
> show_mem. The current code has resulted in the code duplication and
> the output divergence which is both confusing and adds maintainance
> costs. Let's just get rid of this mess.
> 
> Cc: Tony Luck <tony.luck@intel.com>
> Cc: Fenghua Yu <fenghua.yu@intel.com>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Chris Metcalf <cmetcalf@mellanox.com>
> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
> Cc: linux-ia64@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Signed-off-by: Michal Hocko <mhocko@suse.com>
> ---
>  arch/ia64/mm/init.c      | 48 -----------------------------------------------
>  arch/parisc/mm/init.c    | 49 ------------------------------------------------
>  arch/sparc/mm/init_32.c  | 11 -----------
>  arch/tile/mm/pgtable.c   | 45 --------------------------------------------
>  arch/unicore32/mm/init.c | 44 -------------------------------------------
>  5 files changed, 197 deletions(-)

Thanks!

Acked-by: Helge Deller <deller@gmx.de> [for parisc] 

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Subject: Re: [PATCH v2 7/7] uapi: export all headers under uapi directories
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To: Nicolas Dichtel <nicolas.dichtel@6wind.com>
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On Thu, Jan 12, 2017 at 05:32:09PM +0100, Nicolas Dichtel wrote:
> What I was trying to say is that I export those directories like other are.
> Removing those files is not related to that series.

Perhaps the correct solution is to only copy files matching "*.h" to
reduce the risk of copying files incidentally created by kbuild but
which shouldn't be installed as uapi headers.

jeff

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> From: Michal Hocko <mhocko@suse.com>
>
> We have a generic implementation for quite some time already. If there
> is any arch specific information to be printed then we should add a
> callback called from the generic code rather than duplicate the whole
> show_mem. The current code has resulted in the code duplication and
> the output divergence which is both confusing and adds maintainance
> costs. Let's just get rid of this mess.
>
> Cc: Tony Luck <tony.luck@intel.com>
> Cc: Fenghua Yu <fenghua.yu@intel.com>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Chris Metcalf <cmetcalf@mellanox.com>
> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
> Cc: linux-ia64@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Signed-off-by: Michal Hocko <mhocko@suse.com>
> ---
>  arch/ia64/mm/init.c      | 48
> -----------------------------------------------
>  arch/parisc/mm/init.c    | 49
> ------------------------------------------------
>  arch/sparc/mm/init_32.c  | 11 -----------
>  arch/tile/mm/pgtable.c   | 45
> --------------------------------------------
>  arch/unicore32/mm/init.c | 44 -------------------------------------------
>  5 files changed, 197 deletions(-)

For UniCore32:
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>

Thanks.

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Subject: [PATCH v3 4/8] x86: stop exporting msr-index.h to userland
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/34787>

Suggested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
---
 arch/x86/include/uapi/asm/Kbuild | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/include/uapi/asm/Kbuild b/arch/x86/include/uapi/asm/Kbuild
index 3dec769cadf7..1c532b3f18ea 100644
--- a/arch/x86/include/uapi/asm/Kbuild
+++ b/arch/x86/include/uapi/asm/Kbuild
@@ -27,7 +27,6 @@ header-y += ldt.h
 header-y += mce.h
 header-y += mman.h
 header-y += msgbuf.h
-header-y += msr-index.h
 header-y += msr.h
 header-y += mtrr.h
 header-y += param.h
-- 
2.8.1


From - Thu Nov 08 21:39:31 2018
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Newsgroups: gmane.linux.ports.m68k,gmane.linux.kbuild.devel,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.comp.video.dri.devel,gmane.linux.network,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kernel.mmc,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.nfs,gmane.linux.raid,gmane.linux.kernel.spi.devel,gmane.linux.drivers.mtd,gmane.linux.drivers.rdma,gmane.linux.scsi.open-fcoe.devel,gmane.linux.alsa.devel
Subject: [PATCH v3 1/8] arm: put types.h in uapi
Date: Fri, 13 Jan 2017 11:46:39 +0100
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This header file is exported, thus move it to uapi.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
---
 arch/arm/include/asm/types.h      | 40 ---------------------------------------
 arch/arm/include/uapi/asm/types.h | 40 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+), 40 deletions(-)
 delete mode 100644 arch/arm/include/asm/types.h
 create mode 100644 arch/arm/include/uapi/asm/types.h

diff --git a/arch/arm/include/asm/types.h b/arch/arm/include/asm/types.h
deleted file mode 100644
index a53cdb8f068c..000000000000
--- a/arch/arm/include/asm/types.h
+++ /dev/null
@@ -1,40 +0,0 @@
-#ifndef _ASM_TYPES_H
-#define _ASM_TYPES_H
-
-#include <asm-generic/int-ll64.h>
-
-/*
- * The C99 types uintXX_t that are usually defined in 'stdint.h' are not as
- * unambiguous on ARM as you would expect. For the types below, there is a
- * difference on ARM between GCC built for bare metal ARM, GCC built for glibc
- * and the kernel itself, which results in build errors if you try to build with
- * -ffreestanding and include 'stdint.h' (such as when you include 'arm_neon.h'
- * in order to use NEON intrinsics)
- *
- * As the typedefs for these types in 'stdint.h' are based on builtin defines
- * supplied by GCC, we can tweak these to align with the kernel's idea of those
- * types, so 'linux/types.h' and 'stdint.h' can be safely included from the same
- * source file (provided that -ffreestanding is used).
- *
- *                    int32_t         uint32_t               uintptr_t
- * bare metal GCC     long            unsigned long          unsigned int
- * glibc GCC          int             unsigned int           unsigned int
- * kernel             int             unsigned int           unsigned long
- */
-
-#ifdef __INT32_TYPE__
-#undef __INT32_TYPE__
-#define __INT32_TYPE__		int
-#endif
-
-#ifdef __UINT32_TYPE__
-#undef __UINT32_TYPE__
-#define __UINT32_TYPE__	unsigned int
-#endif
-
-#ifdef __UINTPTR_TYPE__
-#undef __UINTPTR_TYPE__
-#define __UINTPTR_TYPE__	unsigned long
-#endif
-
-#endif /* _ASM_TYPES_H */
diff --git a/arch/arm/include/uapi/asm/types.h b/arch/arm/include/uapi/asm/types.h
new file mode 100644
index 000000000000..9435a42f575e
--- /dev/null
+++ b/arch/arm/include/uapi/asm/types.h
@@ -0,0 +1,40 @@
+#ifndef _UAPI_ASM_TYPES_H
+#define _UAPI_ASM_TYPES_H
+
+#include <asm-generic/int-ll64.h>
+
+/*
+ * The C99 types uintXX_t that are usually defined in 'stdint.h' are not as
+ * unambiguous on ARM as you would expect. For the types below, there is a
+ * difference on ARM between GCC built for bare metal ARM, GCC built for glibc
+ * and the kernel itself, which results in build errors if you try to build with
+ * -ffreestanding and include 'stdint.h' (such as when you include 'arm_neon.h'
+ * in order to use NEON intrinsics)
+ *
+ * As the typedefs for these types in 'stdint.h' are based on builtin defines
+ * supplied by GCC, we can tweak these to align with the kernel's idea of those
+ * types, so 'linux/types.h' and 'stdint.h' can be safely included from the same
+ * source file (provided that -ffreestanding is used).
+ *
+ *                    int32_t         uint32_t               uintptr_t
+ * bare metal GCC     long            unsigned long          unsigned int
+ * glibc GCC          int             unsigned int           unsigned int
+ * kernel             int             unsigned int           unsigned long
+ */
+
+#ifdef __INT32_TYPE__
+#undef __INT32_TYPE__
+#define __INT32_TYPE__		int
+#endif
+
+#ifdef __UINT32_TYPE__
+#undef __UINT32_TYPE__
+#define __UINT32_TYPE__	unsigned int
+#endif
+
+#ifdef __UINTPTR_TYPE__
+#undef __UINTPTR_TYPE__
+#define __UINTPTR_TYPE__	unsigned long
+#endif
+
+#endif /* _UAPI_ASM_TYPES_H */
-- 
2.8.1


From - Thu Nov 08 21:39:31 2018
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From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kbuild.devel,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.comp.video.dri.devel,gmane.linux.network,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kernel.mmc,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.nfs,gmane.linux.raid,gmane.linux.kernel.spi.devel,gmane.linux.drivers.mtd,gmane.linux.drivers.rdma,gmane.linux.scsi.open-fcoe.devel,gmane.linux.alsa.devel
Subject: [PATCH v3 3/8] nios2: put setup.h in uapi
Date: Fri, 13 Jan 2017 11:46:41 +0100
Lines: 21
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/9130>

This header file is exported, but from a userland pov, it's just a wrapper
to asm-generic/setup.h.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
---
 arch/nios2/include/uapi/asm/Kbuild | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/nios2/include/uapi/asm/Kbuild b/arch/nios2/include/uapi/asm/Kbuild
index e0bb972a50d7..69c965304146 100644
--- a/arch/nios2/include/uapi/asm/Kbuild
+++ b/arch/nios2/include/uapi/asm/Kbuild
@@ -2,4 +2,5 @@ include include/uapi/asm-generic/Kbuild.asm
 
 header-y += elf.h
 
+generic-y += setup.h
 generic-y += ucontext.h
-- 
2.8.1


From - Thu Nov 08 21:39:31 2018
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X-Mozilla-Keys:                                                                                 
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From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Newsgroups: gmane.linux.kbuild.devel,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.comp.video.dri.devel,gmane.linux.network,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kernel.mmc,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.nfs,gmane.linux.raid,gmane.linux.kernel.spi.devel,gmane.linux.drivers.mtd,gmane.linux.drivers.rdma,gmane.linux.scsi.open-fcoe.devel,gmane.linux.alsa.devel
Subject: [PATCH v3 5/8] Makefile.headersinst: cleanup input files
Date: Fri, 13 Jan 2017 11:46:43 +0100
Lines: 76
Approved: news@gmane.org
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After the last four patches, all exported headers are under uapi/, thus
input-files2 are not needed anymore.
The side effect is that input-files1-name is exactly header-y.

Note also that input-files3-name is genhdr-y.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
---
 scripts/Makefile.headersinst | 34 +++++++++++-----------------------
 1 file changed, 11 insertions(+), 23 deletions(-)

diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 1106d6ca3a38..3e20d03432d2 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -40,31 +40,20 @@ wrapper-files := $(filter $(header-y), $(generic-y))
 srcdir        := $(srctree)/$(obj)
 gendir        := $(objtree)/$(gen)
 
-oldsrcdir     := $(srctree)/$(subst /uapi,,$(obj))
-
 # all headers files for this dir
 header-y      := $(filter-out $(generic-y), $(header-y))
 all-files     := $(header-y) $(genhdr-y) $(wrapper-files)
 output-files  := $(addprefix $(installdir)/, $(all-files))
 
-input-files1  := $(foreach hdr, $(header-y), \
-		   $(if $(wildcard $(srcdir)/$(hdr)), \
-			$(wildcard $(srcdir)/$(hdr))) \
-		   )
-input-files1-name := $(notdir $(input-files1))
-input-files2  := $(foreach hdr, $(header-y), \
-		   $(if  $(wildcard $(srcdir)/$(hdr)),, \
-			$(if $(wildcard $(oldsrcdir)/$(hdr)), \
-				$(wildcard $(oldsrcdir)/$(hdr)), \
-				$(error Missing UAPI file $(srcdir)/$(hdr))) \
-		   ))
-input-files2-name := $(notdir $(input-files2))
-input-files3  := $(foreach hdr, $(genhdr-y), \
-		   $(if	$(wildcard $(gendir)/$(hdr)), \
-			$(wildcard $(gendir)/$(hdr)), \
-			$(error Missing generated UAPI file $(gendir)/$(hdr)) \
-		   ))
-input-files3-name := $(notdir $(input-files3))
+# Check that all expected files exist
+$(foreach hdr, $(header-y), \
+  $(if $(wildcard $(srcdir)/$(hdr)),, \
+       $(error Missing UAPI file $(srcdir)/$(hdr)) \
+   ))
+$(foreach hdr, $(genhdr-y), \
+  $(if	$(wildcard $(gendir)/$(hdr)),, \
+       $(error Missing generated UAPI file $(gendir)/$(hdr)) \
+  ))
 
 # Work out what needs to be removed
 oldheaders    := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
@@ -78,9 +67,8 @@ printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
 quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
                             file$(if $(word 2, $(all-files)),s))
       cmd_install = \
-        $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(input-files1-name); \
-        $(CONFIG_SHELL) $< $(installdir) $(oldsrcdir) $(input-files2-name); \
-        $(CONFIG_SHELL) $< $(installdir) $(gendir) $(input-files3-name); \
+        $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-y); \
+        $(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-y); \
         for F in $(wrapper-files); do                                   \
                 echo "\#include <asm-generic/$$F>" > $(installdir)/$$F;    \
         done;                                                           \
-- 
2.8.1

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From - Thu Nov 08 21:39:31 2018
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Newsgroups: gmane.linux.drivers.mtd,gmane.linux.ports.mips.general,gmane.linux.alsa.devel,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.scsi.open-fcoe.devel,gmane.linux.kernel.arc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kbuild.devel,gmane.linux.raid,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.nfs,gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel.mmc,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH v3 0/8] uapi: export all headers under uapi directories
Date: Fri, 13 Jan 2017 11:46:38 +0100
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To: arnd@arndb.de
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Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.mtd/71323>

Here is the v3 of this series. The first 5 patches are just cleanup: some
exported headers were still under a non-uapi directory or (x86 case) were
wrongly exported.
The patch 6 was spotted by code review: there is no in-tree user of this
functionality.
Patches 7 and 8 remove the need to list explicitly headers. Now all files
under an uapi directory are exported.

This series has been tested with a 'make headers_install' on x86 and a
'make headers_install_all'. I've checked the result of both commands.

This patch is built against linus tree. If I must rebase it against the kbuild
tree, just tell me ;-)

v2 -> v3:
 - patch #1: remove arch/arm/include/asm/types.h
 - patch #2: remove arch/h8300/include/asm/bitsperlong.h
 - patch #3: remove arch/nios2/include/uapi/asm/setup.h
 - patch #4: don't export msr-index.h
 - patch #5: fix a typo: s/unput-files3-name/input-files3-name
 - patch #6: no change
 - patch #7: fix include/uapi/asm-generic/Kbuild.asm by introducing mandatory-y
 - add patch #8

v1 -> v2:
 - add patch #1 to #6
 - patch #7: remove use of header-y

Comments are welcomed,
Nicolas

______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/


From - Thu Nov 08 21:39:31 2018
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From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kbuild.devel,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.comp.video.dri.devel,gmane.linux.network,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kernel.mmc,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.nfs,gmane.linux.raid,gmane.linux.kernel.spi.devel,gmane.linux.drivers.mtd,gmane.linux.drivers.rdma,gmane.linux.scsi.open-fcoe.devel,gmane.linux.alsa.devel
Subject: [PATCH v3 2/8] h8300: put bitsperlong.h in uapi
Date: Fri, 13 Jan 2017 11:46:40 +0100
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This header file is exported, thus move it to uapi.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
---
 arch/h8300/include/asm/bitsperlong.h      | 14 --------------
 arch/h8300/include/uapi/asm/bitsperlong.h | 14 ++++++++++++++
 2 files changed, 14 insertions(+), 14 deletions(-)
 delete mode 100644 arch/h8300/include/asm/bitsperlong.h
 create mode 100644 arch/h8300/include/uapi/asm/bitsperlong.h

diff --git a/arch/h8300/include/asm/bitsperlong.h b/arch/h8300/include/asm/bitsperlong.h
deleted file mode 100644
index e140e46729ac..000000000000
--- a/arch/h8300/include/asm/bitsperlong.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifndef __ASM_H8300_BITS_PER_LONG
-#define __ASM_H8300_BITS_PER_LONG
-
-#include <asm-generic/bitsperlong.h>
-
-#if !defined(__ASSEMBLY__)
-/* h8300-unknown-linux required long */
-#define __kernel_size_t __kernel_size_t
-typedef unsigned long	__kernel_size_t;
-typedef long		__kernel_ssize_t;
-typedef long		__kernel_ptrdiff_t;
-#endif
-
-#endif /* __ASM_H8300_BITS_PER_LONG */
diff --git a/arch/h8300/include/uapi/asm/bitsperlong.h b/arch/h8300/include/uapi/asm/bitsperlong.h
new file mode 100644
index 000000000000..e56cf72369b6
--- /dev/null
+++ b/arch/h8300/include/uapi/asm/bitsperlong.h
@@ -0,0 +1,14 @@
+#ifndef _UAPI_ASM_H8300_BITS_PER_LONG
+#define _UAPI_ASM_H8300_BITS_PER_LONG
+
+#include <asm-generic/bitsperlong.h>
+
+#if !defined(__ASSEMBLY__)
+/* h8300-unknown-linux required long */
+#define __kernel_size_t __kernel_size_t
+typedef unsigned long	__kernel_size_t;
+typedef long		__kernel_ssize_t;
+typedef long		__kernel_ptrdiff_t;
+#endif
+
+#endif /* _UAPI_ASM_H8300_BITS_PER_LONG */
-- 
2.8.1


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From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Newsgroups: gmane.comp.emulators.xen.devel,gmane.linux.ports.mips.general,gmane.linux.alsa.devel,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.drivers.mtd,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.scsi.open-fcoe.devel,gmane.linux.kernel.arc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kbuild.devel,gmane.linux.raid,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.nfs,gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel.mmc,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH v3 6/8] Makefile.headersinst: remove
	destination-y option
Date: Fri, 13 Jan 2017 11:46:44 +0100
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Approved: news@gmane.org
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Cc: linux-mips@linux-mips.org, alsa-devel@alsa-project.org,
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 linux-kbuild@vger.kernel.org, adi-buildroot-devel@lists.sourceforge.net,
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To: arnd@arndb.de
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From - Thu Nov 08 21:39:31 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Newsgroups: gmane.comp.emulators.xen.devel,gmane.linux.ports.mips.general,gmane.linux.alsa.devel,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.drivers.mtd,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.scsi.open-fcoe.devel,gmane.linux.kernel.arc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kbuild.devel,gmane.linux.raid,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.nfs,gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel.mmc,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH v3 7/8] uapi: export all headers under uapi
	directories
Date: Fri, 13 Jan 2017 11:46:45 +0100
Lines: 1329
Approved: news@gmane.org
Message-ID: <1484304406-10820-8-git-send-email-nicolas.dichtel@6wind.com>
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Cc: linux-mips@linux-mips.org, alsa-devel@alsa-project.org,
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 linux-snps-arc@lists.infradead.org, linux-media@vger.kernel.org,
 uclinux-h8-devel@lists.sourceforge.jp, linux-xtensa@linux-xtensa.org,
 linux-kbuild@vger.kernel.org, adi-buildroot-devel@lists.sourceforge.net,
 linux-raid@vger.kernel.org, linux-m68k@lists.linux-m68k.org
To: arnd@arndb.de
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From - Thu Nov 08 21:39:31 2018
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From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.alsa.devel,gmane.linux.ports.ia64,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.drivers.mtd,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.drivers.rdma,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.scsi.open-fcoe.devel,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kbuild.devel,gmane.linux.raid,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.nfs,gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.kernel.mmc,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH v3 8/8] uapi: export all arch specifics directories
Date: Fri, 13 Jan 2017 11:46:46 +0100
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Approved: news@gmane.org
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Cc: linux-mips@linux-mips.org, alsa-devel@alsa-project.org,
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To: arnd@arndb.de
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/2016>

This patch removes the need of subdir-y. Now all files/directories under
arch/<arch>/include/uapi/ are exported.

The only change for userland is the layout of the command 'make
headers_install_all': directories asm-<arch> are replaced by arch-<arch>/.
Those new directories contains all files/directories of the specified arch.

Note that only cris and tile have more directories than only asm:
 - arch-v[10|32] for cris;
 - arch for tile.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
---
 Documentation/kbuild/makefiles.txt | 15 +--------------
 Makefile                           |  4 ++--
 arch/cris/include/uapi/asm/Kbuild  |  3 ---
 arch/tile/include/uapi/asm/Kbuild  |  2 --
 scripts/Makefile.headersinst       |  3 +--
 5 files changed, 4 insertions(+), 23 deletions(-)

diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 51c072049e45..87a3d7d86776 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -48,7 +48,6 @@ This document describes the Linux kernel Makefiles.
 		--- 7.2 genhdr-y
 		--- 7.3 generic-y
 		--- 7.4 generated-y
-		--- 7.5 subdir-y
 
 	=== 8 Kbuild Variables
 	=== 9 Makefile language
@@ -1264,7 +1263,7 @@ The pre-processing does:
 - drop all sections that are kernel internal (guarded by ifdef __KERNEL__)
 
 All headers under include/uapi/, include/generated/uapi/,
-arch/<arch>/include/uapi/asm/ and arch/<arch>/include/generated/uapi/asm/
+arch/<arch>/include/uapi/ and arch/<arch>/include/generated/uapi/
 are exported.
 
 A Kbuild file may be defined under arch/<arch>/include/uapi/asm/ and
@@ -1331,18 +1330,6 @@ See subsequent chapter for the syntax of the Kbuild file.
 			#arch/x86/include/asm/Kbuild
 			generated-y += syscalls_32.h
 
-	--- 7.5 subdir-y
-
-	subdir-y may be used to specify a subdirectory to be exported.
-
-		Example:
-			#arch/cris/include/uapi/asm/Kbuild
-			subdir-y += ../arch-v10/arch/
-			subdir-y += ../arch-v32/arch/
-
-	The convention is to list one subdir per line and
-	preferably in alphabetic order.
-
 === 8 Kbuild Variables
 
 The top Makefile exports the following variables:
diff --git a/Makefile b/Makefile
index 5f1a84735ff6..a35098157b69 100644
--- a/Makefile
+++ b/Makefile
@@ -1126,7 +1126,7 @@ firmware_install:
 export INSTALL_HDR_PATH = $(objtree)/usr
 
 # If we do an all arch process set dst to asm-$(hdr-arch)
-hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)
+hdr-dst = $(if $(KBUILD_HEADERS), dst=include/arch-$(hdr-arch), dst=include)
 
 PHONY += archheaders
 archheaders:
@@ -1147,7 +1147,7 @@ headers_install: __headers
 	$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \
 	  $(error Headers not exportable for the $(SRCARCH) architecture))
 	$(Q)$(MAKE) $(hdr-inst)=include/uapi
-	$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst)
+	$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi $(hdr-dst)
 
 PHONY += headers_check_all
 headers_check_all: headers_install_all
diff --git a/arch/cris/include/uapi/asm/Kbuild b/arch/cris/include/uapi/asm/Kbuild
index d0c5471856e0..b15bf6bc0e94 100644
--- a/arch/cris/include/uapi/asm/Kbuild
+++ b/arch/cris/include/uapi/asm/Kbuild
@@ -1,5 +1,2 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
-
-subdir-y += ../arch-v10/arch/
-subdir-y += ../arch-v32/arch/
diff --git a/arch/tile/include/uapi/asm/Kbuild b/arch/tile/include/uapi/asm/Kbuild
index e0a50111e07f..0c74c3c5ebfa 100644
--- a/arch/tile/include/uapi/asm/Kbuild
+++ b/arch/tile/include/uapi/asm/Kbuild
@@ -2,5 +2,3 @@
 include include/uapi/asm-generic/Kbuild.asm
 
 generic-y += ucontext.h
-
-subdir-y += ../arch
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 16ac3e71050e..cafaca2d9a23 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -2,7 +2,7 @@
 # Installing headers
 #
 # All headers under include/uapi, include/generated/uapi,
-# arch/<arch>/include/uapi/asm and arch/<arch>/include/generated/uapi/asm are
+# arch/<arch>/include/uapi and arch/<arch>/include/generated/uapi are
 # exported.
 # They are preprocessed to remove __KERNEL__ section of the file.
 #
@@ -28,7 +28,6 @@ include scripts/Kbuild.include
 installdir    := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
 
 subdirs       := $(patsubst $(srctree)/$(obj)/%/.,%,$(wildcard $(srctree)/$(obj)/*/.))
-subdirs       += $(subdir-y)
 header-files  := $(notdir $(wildcard $(srctree)/$(obj)/*.h))
 header-files  += $(notdir $(wildcard $(srctree)/$(obj)/*.agh))
 genhdr-files  := $(notdir $(wildcard $(srctree)/$(gen)/*.h))
-- 
2.8.1

From - Thu Nov 08 21:39:31 2018
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X-Mozilla-Keys:                                                                                 
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From: Tobias Klauser <tklauser@distanz.ch>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kbuild.devel,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.comp.video.dri.devel,gmane.linux.network,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kernel.mmc,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.nfs,gmane.linux.raid,gmane.linux.kernel.spi.devel,gmane.linux.drivers.mtd,gmane.linux.drivers.rdma,gmane.linux.scsi.open-fcoe.devel,gmane.linux.alsa.devel
Subject: Re: [PATCH v3 3/8] nios2: put setup.h in uapi
Date: Fri, 13 Jan 2017 11:55:50 +0100
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On 2017-01-13 at 11:46:41 +0100, Nicolas Dichtel <nicolas.dichtel@6wind.com> wrote:
> This header file is exported, but from a userland pov, it's just a wrapper
> to asm-generic/setup.h.
> 
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

Reviewed-by: Tobias Klauser <tklauser@distanz.ch>

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To: Nicolas Dichtel <nicolas.dichtel@6wind.com>
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Nicolas Dichtel <nicolas.dichtel@6wind.com> wrote:

> This header file is exported, thus move it to uapi.

Exported how?

> +#ifdef __INT32_TYPE__
> +#undef __INT32_TYPE__
> +#define __INT32_TYPE__		int
> +#endif
> +
> +#ifdef __UINT32_TYPE__
> +#undef __UINT32_TYPE__
> +#define __UINT32_TYPE__	unsigned int
> +#endif
> +
> +#ifdef __UINTPTR_TYPE__
> +#undef __UINTPTR_TYPE__
> +#define __UINTPTR_TYPE__	unsigned long
> +#endif

These weren't defined by the kernel before, so why do we need to define them
now?

Will defining __UINTPTR_TYPE__ cause problems in compiling libboost by
changing the signature on C++ functions that use uintptr_t?

David
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> -header-y += msr-index.h

I see it on my desktop as /usr/include/asm/msr-index.h and it's been there at
least four years - and as such it's part of the UAPI.  I don't think you can
remove it unless you can guarantee there are no userspace users.

David



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Subject: Re: [PATCH v3 1/8] arm: put types.h in uapi
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Please, do not remove the email subject when you reply. I restore it to ease the
thread follow-up.

Le 13/01/2017  16:36, David Howells a crit :
> Nicolas Dichtel <nicolas.dichtel@6wind.com> wrote:
> 
>> This header file is exported, thus move it to uapi.
> 
> Exported how?
It is listed in include/uapi/asm-generic/Kbuild.asm, which is included by
arch/arm/include/uapi/asm/Kbuild.

You can also have a look at patch #5 to see why it was exported even if it was
not in an uapi directory.

Regards,
Nicolas



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Subject: Re: [PATCH v3 4/8] x86: stop exporting msr-index.h to userland
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To: David Howells <dhowells@redhat.com>
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Le 13/01/2017  16:43, David Howells a crit :
>> -header-y += msr-index.h
> 
> I see it on my desktop as /usr/include/asm/msr-index.h and it's been there at
> least four years - and as such it's part of the UAPI.  I don't think you can
> remove it unless you can guarantee there are no userspace users.
I keep it in the v2 of the series, but the maintainer, Borislav Petkov, asks me
to un-export it.

I will follow the maintainer decision.


Regards,
Nicolas

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Subject: Re: [PATCH v3 1/8] arm: put types.h in uapi
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To: Nicolas Dichtel <nicolas.dichtel@6wind.com>
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On Fri, Jan 13, 2017 at 05:01:01PM +0100, Nicolas Dichtel wrote:
> Please, do not remove the email subject when you reply. I restore it to
> ease the thread follow-up.

I mentioned it to David, and he says it's because the long list of
recipients is breaking his mailer.  I've already posed the question
about whether that's exploitable!

> Le 13/01/2017  16:36, David Howells a crit :
> > Nicolas Dichtel <nicolas.dichtel@6wind.com> wrote:
> > 
> >> This header file is exported, thus move it to uapi.
> > 
> > Exported how?
> 
> It is listed in include/uapi/asm-generic/Kbuild.asm, which is included by
> arch/arm/include/uapi/asm/Kbuild.

We really should not be installing non-uapi header files to userland
under _any_ circumstance - this to me sounds like a bug in kbuild.

The assumption is that headers outside of uapi directories are not
part of the user visible API, and so can be freely modified - which
in the presence of this bug is untrue.

However, as it's happening, and this header has been there since 2013
(commit 09096f6a0ee2 - "ARM: 7822/1: add workaround for ambiguous C99
stdint.h types") it's now well and truely part of the user API whether
we intended it to be or not, so your patch looks to me like the correct
thing to do.

I think it needs further evaluation to make sure kbuild isn't going to
do something else silly, like subsitute include/asm-generic/types.h for
the now missing arch/arm/include/asm/types.h

I wonder how many more headers are unintentionally exported.

... what a mess. :(

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.

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Subject: Re: [PATCH v3 4/8] x86: stop exporting msr-index.h to userland
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To: Nicolas Dichtel <nicolas.dichtel@6wind.com>
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On Fri, Jan 13, 2017 at 05:08:34PM +0100, Nicolas Dichtel wrote:
> Le 13/01/2017 à 16:43, David Howells a écrit :
> >> -header-y += msr-index.h
> > 
> > I see it on my desktop as /usr/include/asm/msr-index.h and it's been there at
> > least four years - and as such it's part of the UAPI.  I don't think you can
> > remove it unless you can guarantee there are no userspace users.
> I keep it in the v2 of the series, but the maintainer, Borislav Petkov, asks me
> to un-export it.
> 
> I will follow the maintainer decision.

I'm not the maintainer. I simply think that exporting that file was
wrong because it if we change something in it, we will break userspace.
And that should not happen - if userspace needs MSRs, it should do its
own defines.

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.
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Subject: Re: [PATCH v3 1/8] arm: put types.h in uapi
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To: Nicolas Dichtel <nicolas.dichtel@6wind.com>
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On Fri, Jan 13, 2017 at 11:46:39AM +0100, Nicolas Dichtel wrote:
> This header file is exported, thus move it to uapi.

I'm taking this patch, but with the following commit log:

  Due to the way kbuild works, this header was unintentionally exported
  back in 2013 when it was created, despite it not being in a uapi/
  directory.  This is very non-intuitive behaviour by Kbuild.

  However, we've had this include exported to userland for almost four
  years, and searching google for "ARM types.h __UINTPTR_TYPE__" gives
  no hint that anyone has complained about it.  So, let's make it
  officially exported in this state.

If anyone has any objections, they better shout sooner rather than
later.

> 
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
> ---
>  arch/arm/include/asm/types.h      | 40 ---------------------------------------
>  arch/arm/include/uapi/asm/types.h | 40 +++++++++++++++++++++++++++++++++++++++
>  2 files changed, 40 insertions(+), 40 deletions(-)
>  delete mode 100644 arch/arm/include/asm/types.h
>  create mode 100644 arch/arm/include/uapi/asm/types.h
> 
> diff --git a/arch/arm/include/asm/types.h b/arch/arm/include/asm/types.h
> deleted file mode 100644
> index a53cdb8f068c..000000000000
> --- a/arch/arm/include/asm/types.h
> +++ /dev/null
> @@ -1,40 +0,0 @@
> -#ifndef _ASM_TYPES_H
> -#define _ASM_TYPES_H
> -
> -#include <asm-generic/int-ll64.h>
> -
> -/*
> - * The C99 types uintXX_t that are usually defined in 'stdint.h' are not as
> - * unambiguous on ARM as you would expect. For the types below, there is a
> - * difference on ARM between GCC built for bare metal ARM, GCC built for glibc
> - * and the kernel itself, which results in build errors if you try to build with
> - * -ffreestanding and include 'stdint.h' (such as when you include 'arm_neon.h'
> - * in order to use NEON intrinsics)
> - *
> - * As the typedefs for these types in 'stdint.h' are based on builtin defines
> - * supplied by GCC, we can tweak these to align with the kernel's idea of those
> - * types, so 'linux/types.h' and 'stdint.h' can be safely included from the same
> - * source file (provided that -ffreestanding is used).
> - *
> - *                    int32_t         uint32_t               uintptr_t
> - * bare metal GCC     long            unsigned long          unsigned int
> - * glibc GCC          int             unsigned int           unsigned int
> - * kernel             int             unsigned int           unsigned long
> - */
> -
> -#ifdef __INT32_TYPE__
> -#undef __INT32_TYPE__
> -#define __INT32_TYPE__		int
> -#endif
> -
> -#ifdef __UINT32_TYPE__
> -#undef __UINT32_TYPE__
> -#define __UINT32_TYPE__	unsigned int
> -#endif
> -
> -#ifdef __UINTPTR_TYPE__
> -#undef __UINTPTR_TYPE__
> -#define __UINTPTR_TYPE__	unsigned long
> -#endif
> -
> -#endif /* _ASM_TYPES_H */
> diff --git a/arch/arm/include/uapi/asm/types.h b/arch/arm/include/uapi/asm/types.h
> new file mode 100644
> index 000000000000..9435a42f575e
> --- /dev/null
> +++ b/arch/arm/include/uapi/asm/types.h
> @@ -0,0 +1,40 @@
> +#ifndef _UAPI_ASM_TYPES_H
> +#define _UAPI_ASM_TYPES_H
> +
> +#include <asm-generic/int-ll64.h>
> +
> +/*
> + * The C99 types uintXX_t that are usually defined in 'stdint.h' are not as
> + * unambiguous on ARM as you would expect. For the types below, there is a
> + * difference on ARM between GCC built for bare metal ARM, GCC built for glibc
> + * and the kernel itself, which results in build errors if you try to build with
> + * -ffreestanding and include 'stdint.h' (such as when you include 'arm_neon.h'
> + * in order to use NEON intrinsics)
> + *
> + * As the typedefs for these types in 'stdint.h' are based on builtin defines
> + * supplied by GCC, we can tweak these to align with the kernel's idea of those
> + * types, so 'linux/types.h' and 'stdint.h' can be safely included from the same
> + * source file (provided that -ffreestanding is used).
> + *
> + *                    int32_t         uint32_t               uintptr_t
> + * bare metal GCC     long            unsigned long          unsigned int
> + * glibc GCC          int             unsigned int           unsigned int
> + * kernel             int             unsigned int           unsigned long
> + */
> +
> +#ifdef __INT32_TYPE__
> +#undef __INT32_TYPE__
> +#define __INT32_TYPE__		int
> +#endif
> +
> +#ifdef __UINT32_TYPE__
> +#undef __UINT32_TYPE__
> +#define __UINT32_TYPE__	unsigned int
> +#endif
> +
> +#ifdef __UINTPTR_TYPE__
> +#undef __UINTPTR_TYPE__
> +#define __UINTPTR_TYPE__	unsigned long
> +#endif
> +
> +#endif /* _UAPI_ASM_TYPES_H */
> -- 
> 2.8.1
> 

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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Subject: Re: [RFC PATCH 3/4] arch, mm: remove arch specific show_mem
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 <20170112131659.23058-4-mhocko@kernel.org>
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Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
	Mel Gorman <mgorman@suse.de>, David Rientjes <rientjes@google.com>,
	Michal Hocko <mhocko@suse.com>, Tony Luck <tony.luck@intel.com>,
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On Thu, Jan 12, 2017 at 02:16:58PM +0100, Michal Hocko wrote:
> From: Michal Hocko <mhocko@suse.com>
> 
> We have a generic implementation for quite some time already. If there
> is any arch specific information to be printed then we should add a
> callback called from the generic code rather than duplicate the whole
> show_mem. The current code has resulted in the code duplication and
> the output divergence which is both confusing and adds maintainance
> costs. Let's just get rid of this mess.
> 
> Cc: Tony Luck <tony.luck@intel.com>
> Cc: Fenghua Yu <fenghua.yu@intel.com>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Chris Metcalf <cmetcalf@mellanox.com>
> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
> Cc: linux-ia64@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Signed-off-by: Michal Hocko <mhocko@suse.com>

Acked-by: Johannes Weiner <hannes@cmpxchg.org>

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From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH v1] parisc : eisa :- Remove coding style error.
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This patch removes coding style errors.
- ERROR: space prohibited before that close parenthesis ')'
- ERROR: code indent should use tabs where possible
- ERROR: space required after that ',' (ctx:VxV)
- ERROR: trailing whitespace

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/parisc/eisa.c | 104 +++++++++++++++++++++++++-------------------------
 1 file changed, 52 insertions(+), 52 deletions(-)

diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 103095b..59edee9 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -14,16 +14,16 @@
  * Wax ASIC also includes a PS/2 and RS-232 controller, but those are
  * dealt with elsewhere; this file is concerned only with the EISA portions
  * of Wax.
- * 
- * 
+ *
+ *
  * HINT:
  * -----
  * To allow an ISA card to work properly in the EISA slot you need to
- * set an edge trigger level. This may be done on the palo command line 
- * by adding the kernel parameter "eisa_irq_edge=n,n2,[...]]", with 
+ * set an edge trigger level. This may be done on the palo command line
+ * by adding the kernel parameter "eisa_irq_edge=n,n2,[...]]", with
  * n and n2 as the irq levels you want to use.
- * 
- * Example: "eisa_irq_edge=10,11" allows ISA cards to operate at 
+ *
+ * Example: "eisa_irq_edge=10,11" allows ISA cards to operate at
  * irq levels 10 and 11.
  */
 
@@ -46,9 +46,9 @@
 #include <asm/eisa_eeprom.h>
 
 #if 0
-#define EISA_DBG(msg, arg... ) printk(KERN_DEBUG "eisa: " msg , ## arg )
+#define EISA_DBG(msg, arg...) printk(KERN_DEBUG "eisa: " msg, ## arg)
 #else
-#define EISA_DBG(msg, arg... )  
+#define EISA_DBG(msg, arg...)
 #endif
 
 #define SNAKES_EEPROM_BASE_ADDR 0xF0810400
@@ -108,7 +108,7 @@ void eisa_out8(unsigned char data, unsigned short port)
 
 void eisa_out16(unsigned short data, unsigned short port)
 {
-	if (EISA_bus)	
+	if (EISA_bus)
 		gsc_writew(cpu_to_le16(data), eisa_permute(port));
 }
 
@@ -135,9 +135,9 @@ void eisa_out32(unsigned int data, unsigned short port)
 static int slave_mask;
 
 /* the trig level can be set with the
- * eisa_irq_edge=n,n,n commandline parameter 
- * We should really read this from the EEPROM 
- * in the furure. 
+ * eisa_irq_edge=n,n,n commandline parameter
+ * We should really read this from the EEPROM
+ * in the furure.
  */
 /* irq 13,8,2,1,0 must be edge */
 static unsigned int eisa_irq_level __read_mostly; /* default to edge triggered */
@@ -170,7 +170,7 @@ static void eisa_unmask_irq(struct irq_data *d)
 	unsigned int irq = d->irq;
 	unsigned long flags;
 	EISA_DBG("enable irq %d\n", irq);
-		
+
 	spin_lock_irqsave(&eisa_irq_lock, flags);
         if (irq & 8) {
 		slave_mask &= ~(1 << (irq&7));
@@ -194,7 +194,7 @@ static irqreturn_t eisa_irq(int wax_irq, void *intr_dev)
 {
 	int irq = gsc_readb(0xfc01f000); /* EISA supports 16 irqs */
 	unsigned long flags;
-        
+
 	spin_lock_irqsave(&eisa_irq_lock, flags);
 	/* read IRR command */
 	eisa_out8(0x0a, 0x20);
@@ -202,31 +202,31 @@ static irqreturn_t eisa_irq(int wax_irq, void *intr_dev)
 
 	EISA_DBG("irq IAR %02x 8259-1 irr %02x 8259-2 irr %02x\n",
 		   irq, eisa_in8(0x20), eisa_in8(0xa0));
-   
+
 	/* read ISR command */
 	eisa_out8(0x0a, 0x20);
 	eisa_out8(0x0a, 0xa0);
 	EISA_DBG("irq 8259-1 isr %02x imr %02x 8259-2 isr %02x imr %02x\n",
 		 eisa_in8(0x20), eisa_in8(0x21), eisa_in8(0xa0), eisa_in8(0xa1));
-	
+
 	irq &= 0xf;
-	
+
 	/* mask irq and write eoi */
 	if (irq & 8) {
 		slave_mask |= (1 << (irq&7));
 		eisa_out8(slave_mask, 0xa1);
 		eisa_out8(0x60 | (irq&7),0xa0);/* 'Specific EOI' to slave */
-		eisa_out8(0x62,0x20);	/* 'Specific EOI' to master-IRQ2 */
-		
+		eisa_out8(0x62, 0x20);	/* 'Specific EOI' to master-IRQ2 */
+
 	} else {
 		master_mask |= (1 << (irq&7));
 		eisa_out8(master_mask, 0x21);
-		eisa_out8(0x60|irq,0x20);	/* 'Specific EOI' to master */
+		eisa_out8(0x60|irq, 0x20);	/* 'Specific EOI' to master */
 	}
 	spin_unlock_irqrestore(&eisa_irq_lock, flags);
 
 	generic_handle_irq(irq);
-   
+
 	spin_lock_irqsave(&eisa_irq_lock, flags);
 	/* unmask */
         if (irq & 8) {
@@ -254,44 +254,44 @@ static irqreturn_t dummy_irq2_handler(int _, void *dev)
 static void init_eisa_pic(void)
 {
 	unsigned long flags;
-	
+
 	spin_lock_irqsave(&eisa_irq_lock, flags);
 
 	eisa_out8(0xff, 0x21); /* mask during init */
 	eisa_out8(0xff, 0xa1); /* mask during init */
-	
+
 	/* master pic */
-	eisa_out8(0x11,0x20); /* ICW1 */   
-	eisa_out8(0x00,0x21); /* ICW2 */   
-	eisa_out8(0x04,0x21); /* ICW3 */   
-	eisa_out8(0x01,0x21); /* ICW4 */   
-	eisa_out8(0x40,0x20); /* OCW2 */   
-	
+	eisa_out8(0x11, 0x20); /* ICW1 */
+	eisa_out8(0x00, 0x21); /* ICW2 */
+	eisa_out8(0x04, 0x21); /* ICW3 */
+	eisa_out8(0x01, 0x21); /* ICW4 */
+	eisa_out8(0x40, 0x20); /* OCW2 */
+
 	/* slave pic */
-	eisa_out8(0x11,0xa0); /* ICW1 */   
-	eisa_out8(0x08,0xa1); /* ICW2 */   
-        eisa_out8(0x02,0xa1); /* ICW3 */   
-	eisa_out8(0x01,0xa1); /* ICW4 */   
-	eisa_out8(0x40,0xa0); /* OCW2 */   
-        
+	eisa_out8(0x11, 0xa0); /* ICW1 */
+	eisa_out8(0x08, 0xa1); /* ICW2 */
+	eisa_out8(0x02, 0xa1); /* ICW3 */
+	eisa_out8(0x01, 0xa1); /* ICW4 */
+	eisa_out8(0x40, 0xa0); /* OCW2 */
+
 	udelay(100);
-	
-	slave_mask = 0xff; 
-	master_mask = 0xfb; 
+
+	slave_mask = 0xff;
+	master_mask = 0xfb;
 	eisa_out8(slave_mask, 0xa1); /* OCW1 */
 	eisa_out8(master_mask, 0x21); /* OCW1 */
-	
+
 	/* setup trig level */
 	EISA_DBG("EISA edge/level %04x\n", eisa_irq_level);
-	
+
 	eisa_out8(eisa_irq_level&0xff, 0x4d0); /* Set all irq's to edge  */
-	eisa_out8((eisa_irq_level >> 8) & 0xff, 0x4d1); 
-	
+	eisa_out8((eisa_irq_level >> 8) & 0xff, 0x4d1);
+
 	EISA_DBG("pic0 mask %02x\n", eisa_in8(0x21));
 	EISA_DBG("pic1 mask %02x\n", eisa_in8(0xa1));
 	EISA_DBG("pic0 edge/level %02x\n", eisa_in8(0x4d0));
 	EISA_DBG("pic1 edge/level %02x\n", eisa_in8(0x4d1));
-	
+
 	spin_unlock_irqrestore(&eisa_irq_lock, flags);
 }
 
@@ -305,7 +305,7 @@ static int __init eisa_probe(struct parisc_device *dev)
 
 	char *name = is_mongoose(dev) ? "Mongoose" : "Wax";
 
-	printk(KERN_INFO "%s EISA Adapter found at 0x%08lx\n", 
+	printk(KERN_INFO "%s EISA Adapter found at 0x%08lx\n",
 		name, (unsigned long)dev->hpa.start);
 
 	eisa_dev.hba.dev = dev;
@@ -336,14 +336,14 @@ static int __init eisa_probe(struct parisc_device *dev)
 		printk(KERN_ERR "EISA: request_irq failed!\n");
 		return result;
 	}
-	
+
 	/* Reserve IRQ2 */
 	setup_irq(2, &irq2_action);
 	for (i = 0; i < 16; i++) {
 		irq_set_chip_and_handler(i, &eisa_interrupt_type,
 					 handle_simple_irq);
 	}
-	
+
 	EISA_bus = 1;
 
 	if (dev->num_addrs) {
@@ -375,7 +375,7 @@ static int __init eisa_probe(struct parisc_device *dev)
 			return -1;
 		}
 	}
-	
+
 	return 0;
 }
 
@@ -404,7 +404,7 @@ void eisa_make_irq_level(int num)
 {
 	if (eisa_irq_configured& (1<<num)) {
 		printk(KERN_WARNING
-		       "IRQ %d polarity configured twice (last to level)\n", 
+		       "IRQ %d polarity configured twice (last to level)\n",
 		       num);
 	}
 	eisa_irq_level |= (1<<num); /* set the corresponding bit */
@@ -414,7 +414,7 @@ void eisa_make_irq_level(int num)
 void eisa_make_irq_edge(int num)
 {
 	if (eisa_irq_configured& (1<<num)) {
-		printk(KERN_WARNING 
+		printk(KERN_WARNING
 		       "IRQ %d polarity configured twice (last to edge)\n",
 		       num);
 	}
@@ -430,18 +430,18 @@ static int __init eisa_irq_setup(char *str)
 	EISA_DBG("IRQ setup\n");
 	while (cur != NULL) {
 		char *pe;
-		
+
 		val = (int) simple_strtoul(cur, &pe, 0);
 		if (val > 15 || val < 0) {
 			printk(KERN_ERR "eisa: EISA irq value are 0-15\n");
 			continue;
 		}
-		if (val == 2) { 
+		if (val == 2) {
 			val = 9;
 		}
 		eisa_make_irq_edge(val); /* clear the corresponding bit */
 		EISA_DBG("setting IRQ %d to edge-triggered mode\n", val);
-		
+
 		if ((cur = strchr(cur, ','))) {
 			cur++;
 		} else {
-- 
1.9.1



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Subject: [PATCH 3/4] arch, mm: remove arch specific show_mem
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Xref: news.gmane.org gmane.linux.kernel.mm:164586 gmane.linux.kernel:2389562 gmane.linux.ports.ia64:27616 gmane.linux.ports.parisc:27203
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/164586>

From: Michal Hocko <mhocko@suse.com>

We have a generic implementation for quite some time already. If there
is any arch specific information to be printed then we should add a
callback called from the generic code rather than duplicate the whole
show_mem. The current code has resulted in the code duplication and
the output divergence which is both confusing and adds maintainance
costs. Let's just get rid of this mess.

Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-ia64@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [UniCore32]
Acked-by: Helge Deller <deller@gmx.de> [for parisc]
Acked-by: Chris Metcalf <cmetcalf@mellanox.com> [for tile]
Acked-by: Mel Gorman <mgorman@suse.de>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Michal Hocko <mhocko@suse.com>
---
 arch/ia64/mm/init.c      | 48 -----------------------------------------------
 arch/parisc/mm/init.c    | 49 ------------------------------------------------
 arch/sparc/mm/init_32.c  | 11 -----------
 arch/tile/mm/pgtable.c   | 45 --------------------------------------------
 arch/unicore32/mm/init.c | 44 -------------------------------------------
 5 files changed, 197 deletions(-)

diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 1841ef69183d..46afc8d5ebfc 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -684,51 +684,3 @@ int arch_remove_memory(u64 start, u64 size)
 }
 #endif
 #endif
-
-/**
- * show_mem - give short summary of memory stats
- *
- * Shows a simple page count of reserved and used pages in the system.
- * For discontig machines, it does this on a per-pgdat basis.
- */
-void show_mem(unsigned int filter)
-{
-	int total_reserved = 0;
-	unsigned long total_present = 0;
-	pg_data_t *pgdat;
-
-	printk(KERN_INFO "Mem-info:\n");
-	show_free_areas(filter);
-	printk(KERN_INFO "Node memory in pages:\n");
-	for_each_online_pgdat(pgdat) {
-		unsigned long present;
-		unsigned long flags;
-		int reserved = 0;
-		int nid = pgdat->node_id;
-		int zoneid;
-
-		if (skip_free_areas_node(filter, nid))
-			continue;
-		pgdat_resize_lock(pgdat, &flags);
-
-		for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
-			struct zone *zone = &pgdat->node_zones[zoneid];
-			if (!populated_zone(zone))
-				continue;
-
-			reserved += zone->present_pages - zone->managed_pages;
-		}
-		present = pgdat->node_present_pages;
-
-		pgdat_resize_unlock(pgdat, &flags);
-		total_present += present;
-		total_reserved += reserved;
-		printk(KERN_INFO "Node %4d:  RAM: %11ld, rsvd: %8d, ",
-		       nid, present, reserved);
-	}
-	printk(KERN_INFO "%ld pages of RAM\n", total_present);
-	printk(KERN_INFO "%d reserved pages\n", total_reserved);
-	printk(KERN_INFO "Total of %ld pages in page table cache\n",
-	       quicklist_total_size());
-	printk(KERN_INFO "%ld free buffer pages\n", nr_free_buffer_pages());
-}
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index e02ada312be8..64bfdf636f39 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -653,55 +653,6 @@ void __init mem_init(void)
 unsigned long *empty_zero_page __read_mostly;
 EXPORT_SYMBOL(empty_zero_page);
 
-void show_mem(unsigned int filter)
-{
-	int total = 0,reserved = 0;
-	pg_data_t *pgdat;
-
-	printk(KERN_INFO "Mem-info:\n");
-	show_free_areas(filter);
-
-	for_each_online_pgdat(pgdat) {
-		unsigned long flags;
-		int zoneid;
-
-		pgdat_resize_lock(pgdat, &flags);
-		for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
-			struct zone *zone = &pgdat->node_zones[zoneid];
-			if (!populated_zone(zone))
-				continue;
-
-			total += zone->present_pages;
-			reserved = zone->present_pages - zone->managed_pages;
-		}
-		pgdat_resize_unlock(pgdat, &flags);
-	}
-
-	printk(KERN_INFO "%d pages of RAM\n", total);
-	printk(KERN_INFO "%d reserved pages\n", reserved);
-
-#ifdef CONFIG_DISCONTIGMEM
-	{
-		struct zonelist *zl;
-		int i, j;
-
-		for (i = 0; i < npmem_ranges; i++) {
-			zl = node_zonelist(i, 0);
-			for (j = 0; j < MAX_NR_ZONES; j++) {
-				struct zoneref *z;
-				struct zone *zone;
-
-				printk("Zone list for zone %d on node %d: ", j, i);
-				for_each_zone_zonelist(zone, z, zl, j)
-					printk("[%d/%s] ", zone_to_nid(zone),
-								zone->name);
-				printk("\n");
-			}
-		}
-	}
-#endif
-}
-
 /*
  * pagetable_init() sets up the page tables
  *
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index eb8287155279..c6afe98de4d9 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -55,17 +55,6 @@ extern unsigned int sparc_ramdisk_size;
 
 unsigned long highstart_pfn, highend_pfn;
 
-void show_mem(unsigned int filter)
-{
-	printk("Mem-info:\n");
-	show_free_areas(filter);
-	printk("Free swap:       %6ldkB\n",
-	       get_nr_swap_pages() << (PAGE_SHIFT-10));
-	printk("%ld pages of RAM\n", totalram_pages);
-	printk("%ld free pages\n", nr_free_pages());
-}
-
-
 unsigned long last_valid_pfn;
 
 unsigned long calc_highpages(void)
diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c
index 7cc6ee7f1a58..492a7361e58e 100644
--- a/arch/tile/mm/pgtable.c
+++ b/arch/tile/mm/pgtable.c
@@ -36,51 +36,6 @@
 
 #define K(x) ((x) << (PAGE_SHIFT-10))
 
-/*
- * The normal show_free_areas() is too verbose on Tile, with dozens
- * of processors and often four NUMA zones each with high and lowmem.
- */
-void show_mem(unsigned int filter)
-{
-	struct zone *zone;
-
-	pr_err("Active:%lu inactive:%lu dirty:%lu writeback:%lu unstable:%lu free:%lu\n slab:%lu mapped:%lu pagetables:%lu bounce:%lu pagecache:%lu swap:%lu\n",
-	       (global_node_page_state(NR_ACTIVE_ANON) +
-		global_node_page_state(NR_ACTIVE_FILE)),
-	       (global_node_page_state(NR_INACTIVE_ANON) +
-		global_node_page_state(NR_INACTIVE_FILE)),
-	       global_node_page_state(NR_FILE_DIRTY),
-	       global_node_page_state(NR_WRITEBACK),
-	       global_node_page_state(NR_UNSTABLE_NFS),
-	       global_page_state(NR_FREE_PAGES),
-	       (global_page_state(NR_SLAB_RECLAIMABLE) +
-		global_page_state(NR_SLAB_UNRECLAIMABLE)),
-	       global_node_page_state(NR_FILE_MAPPED),
-	       global_page_state(NR_PAGETABLE),
-	       global_page_state(NR_BOUNCE),
-	       global_node_page_state(NR_FILE_PAGES),
-	       get_nr_swap_pages());
-
-	for_each_zone(zone) {
-		unsigned long flags, order, total = 0, largest_order = -1;
-
-		if (!populated_zone(zone))
-			continue;
-
-		spin_lock_irqsave(&zone->lock, flags);
-		for (order = 0; order < MAX_ORDER; order++) {
-			int nr = zone->free_area[order].nr_free;
-			total += nr << order;
-			if (nr)
-				largest_order = order;
-		}
-		spin_unlock_irqrestore(&zone->lock, flags);
-		pr_err("Node %d %7s: %lukB (largest %luKb)\n",
-		       zone_to_nid(zone), zone->name,
-		       K(total), largest_order ? K(1UL) << largest_order : 0);
-	}
-}
-
 /**
  * shatter_huge_page() - ensure a given address is mapped by a small page.
  *
diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
index be2bde9b07cf..f4950fbfe574 100644
--- a/arch/unicore32/mm/init.c
+++ b/arch/unicore32/mm/init.c
@@ -57,50 +57,6 @@ early_param("initrd", early_initrd);
  */
 struct meminfo meminfo;
 
-void show_mem(unsigned int filter)
-{
-	int free = 0, total = 0, reserved = 0;
-	int shared = 0, cached = 0, slab = 0, i;
-	struct meminfo *mi = &meminfo;
-
-	printk(KERN_DEFAULT "Mem-info:\n");
-	show_free_areas(filter);
-
-	for_each_bank(i, mi) {
-		struct membank *bank = &mi->bank[i];
-		unsigned int pfn1, pfn2;
-		struct page *page, *end;
-
-		pfn1 = bank_pfn_start(bank);
-		pfn2 = bank_pfn_end(bank);
-
-		page = pfn_to_page(pfn1);
-		end  = pfn_to_page(pfn2 - 1) + 1;
-
-		do {
-			total++;
-			if (PageReserved(page))
-				reserved++;
-			else if (PageSwapCache(page))
-				cached++;
-			else if (PageSlab(page))
-				slab++;
-			else if (!page_count(page))
-				free++;
-			else
-				shared += page_count(page) - 1;
-			page++;
-		} while (page < end);
-	}
-
-	printk(KERN_DEFAULT "%d pages of RAM\n", total);
-	printk(KERN_DEFAULT "%d free pages\n", free);
-	printk(KERN_DEFAULT "%d reserved pages\n", reserved);
-	printk(KERN_DEFAULT "%d slab pages\n", slab);
-	printk(KERN_DEFAULT "%d pages shared\n", shared);
-	printk(KERN_DEFAULT "%d pages swap cached\n", cached);
-}
-
 static void __init find_limits(unsigned long *min, unsigned long *max_low,
 	unsigned long *max_high)
 {
-- 
2.11.0

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From - Thu Nov 08 21:39:32 2018
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X-Mozilla-Keys:                                                                                 
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From: Arvind Yadav <arvind.yadav.cs@gmail.com>
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Subject: [PATCH v1] parisc : eisa :- Prevent resource leake and NULL error in error path
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Here, If ioremap_nocache will fail. It will return NULL.
Kernel can run into a NULL-pointer dereference.

If eisa_probe will fail, Handle ERROR properly.
 -Release resource
 -Free irq line.
 -Unmap I/O memory from kernel address space.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/parisc/eisa.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 103095b..2c7f90f 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -334,7 +334,7 @@ static int __init eisa_probe(struct parisc_device *dev)
 	result = request_irq(dev->irq, eisa_irq, IRQF_SHARED, "EISA", &eisa_dev);
 	if (result) {
 		printk(KERN_ERR "EISA: request_irq failed!\n");
-		return result;
+		goto error_release;
 	}
 	
 	/* Reserve IRQ2 */
@@ -358,6 +358,11 @@ static int __init eisa_probe(struct parisc_device *dev)
 		}
 	}
 	eisa_eeprom_addr = ioremap_nocache(eisa_dev.eeprom_addr, HPEE_MAX_LENGTH);
+	if (!eisa_eeprom_addr) {
+		result = -ENOMEM;
+		printk(KERN_ERR "EISA: ioremap_nocache failed!\n");
+		goto error_free_irq;
+	}
 	result = eisa_enumerator(eisa_dev.eeprom_addr, &eisa_dev.hba.io_space,
 			&eisa_dev.hba.lmmio_space);
 	init_eisa_pic();
@@ -371,12 +376,21 @@ static int __init eisa_probe(struct parisc_device *dev)
 		eisa_dev.root.slots = result;
 		eisa_dev.root.dma_mask = 0xffffffff; /* wild guess */
 		if (eisa_root_register (&eisa_dev.root)) {
+			result = -ENOMEM;
 			printk(KERN_ERR "EISA: Failed to register EISA root\n");
-			return -1;
+			goto error_iounmap;
 		}
 	}
 	
 	return 0;
+
+error_iounmap:
+	iounmap(eisa_eeprom_addr);
+error_free_irq:
+	free_irq(dev->irq, &eisa_dev);
+error_release:
+	release_resource(&eisa_dev.hba.io_space);
+	return result;
 }
 
 static const struct parisc_device_id eisa_tbl[] = {
-- 
1.9.1



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Lieber Freund.

Erlauben Sie mir, auf diese Weise auf Sie zuzugehen. Ich bin Dr. Arnold Kristofferson, ein US-Auftragnehmer, der mit Nichtkmpfer US Marine in Ba'qubah, Irak arbeitet. Ich habe die Summe von 10,6 Millionen Dollar, die ich aus einem Rohl-Deal gemacht habe, und ich mchte, dass Sie mir helfen, es zu erhalten. Da ich hier auf offizieller Kapazitt arbeite, kann ich diesen Fonds nicht bei mir behalten und dies ist mein einziger Grund fr die Kontaktaufnahme mit Ihnen. Wenn Sie interessiert sind und Sie diesen Fonds in Ihrer Kapazitt erhalten knnen, melden Sie sich bitte bei mir, damit ich Ihnen weitere Details geben kann, wie Sie dieses Geld fr mich erhalten knnen. Bitte erreichen Sie mich per E-Mail: arnoldkristoferson101@gmail.com
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Subject: [PATCH v1] video : fbdev : stifb :- Handle return NULL error from ioremap_nocache.
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Here, If ioremap_nocache will fail. It will return NULL.
Kernel can run into a NULL-pointer dereference.
This error check will avoid NULL pointer dereference.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/video/fbdev/stifb.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
index accfef7..d5deab3 100644
--- a/drivers/video/fbdev/stifb.c
+++ b/drivers/video/fbdev/stifb.c
@@ -1294,6 +1294,10 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
 	strcpy(fix->id, "stifb");
 	info->fbops = &stifb_ops;
 	info->screen_base = ioremap_nocache(REGION_BASE(fb,1), fix->smem_len);
+	if (!info->screen_base) {
+		printk(KERN_ERR "stifb: Failed to Map memory\n");
+		goto out_err0;
+	}
 	info->screen_size = fix->smem_len;
 	info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA;
 	info->pseudo_palette = &fb->pseudo_palette;
-- 
1.9.1



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Subject: [RFC][PATCH 0/2] Better hardening names
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	li
To: Kees Cook <keescook@chromium.org>
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Hi,

It's come up previously that CONFIG_DEBUG_SET_MODULE_RONX and
CONFIG_DEBUG_RODATA are not accurate names, mostly they should not have the
word 'debug' in them. This series attempts to change the names to something
a bit more descriptive and indicative of what they are actually used for these
days.

I marked this RFC for
- Bike shedding purposes.
- A discussion of what defaults should be. The way I did the refactoring, both
  options are default y. I'd appreciate comments if there is a better approach.
- Approach to split this up into more sub patches to make review/merging easier?
  Or maybe it's fine.

Quickly tested on arm/arm64/x86.

Thanks,
Laura

Laura Abbott (2):
  security: Change name of CONFIG_DEBUG_RODATA
  security: Change name of CONFIG_DEBUG_SET_MODULE_RONX

 Documentation/DocBook/kgdb.tmpl            |  8 ++++----
 Documentation/security/self-protection.txt |  4 ++--
 arch/arm/Kconfig                           |  2 ++
 arch/arm/Kconfig.debug                     | 11 ----------
 arch/arm/configs/aspeed_g4_defconfig       |  4 ++--
 arch/arm/configs/aspeed_g5_defconfig       |  4 ++--
 arch/arm/include/asm/cacheflush.h          |  2 +-
 arch/arm/kernel/patch.c                    |  4 ++--
 arch/arm/kernel/vmlinux.lds.S              |  8 ++++----
 arch/arm/mm/Kconfig                        | 14 +------------
 arch/arm/mm/init.c                         |  4 ++--
 arch/arm64/Kconfig                         |  5 ++---
 arch/arm64/Kconfig.debug                   | 13 +-----------
 arch/arm64/kernel/insn.c                   |  2 +-
 arch/parisc/Kconfig                        |  1 +
 arch/parisc/Kconfig.debug                  | 11 ----------
 arch/parisc/configs/712_defconfig          |  2 +-
 arch/parisc/configs/c3000_defconfig        |  2 +-
 arch/parisc/mm/init.c                      |  2 +-
 arch/s390/Kconfig                          |  5 ++---
 arch/s390/Kconfig.debug                    |  3 ---
 arch/x86/Kconfig                           |  5 ++---
 arch/x86/Kconfig.debug                     | 11 ----------
 include/linux/filter.h                     |  4 ++--
 include/linux/init.h                       |  4 ++--
 include/linux/module.h                     |  2 +-
 init/main.c                                |  4 ++--
 kernel/configs/android-recommended.config  |  2 +-
 kernel/module.c                            |  6 +++---
 kernel/power/hibernate.c                   |  2 +-
 kernel/power/power.h                       |  4 ++--
 kernel/power/snapshot.c                    |  4 ++--
 security/Kconfig                           | 32 ++++++++++++++++++++++++++++++
 33 files changed, 82 insertions(+), 109 deletions(-)

-- 
2.7.4



From - Thu Nov 08 21:39:32 2018
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From: Laura Abbott <labbott@redhat.com>
Newsgroups: gmane.linux.kernel.hardened.devel,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.power-management.general
Subject: [PATCH 1/2] security: Change name of CONFIG_DEBUG_RODATA
Date: Wed, 18 Jan 2017 17:29:05 -0800
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Approved: news@gmane.org
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Cc: Laura Abbott <labbott@redhat.com>,
	Jason Wessel <jason.wessel@windriver.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Russell King <linux@armlinux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org,
	Rob Herring <robh@kernel.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Len Brown <len.brown@intel.com>,
	Pavel Machek <pavel@ucw.cz>,
	Mark Rutland <mark.rutland@arm.com>,
	Jessica Yu <jeyu@redhat.com>,
	linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-parisc@vger.kernel.org,
	linux-s390@vger.kernel.org,
	li
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Despite the word 'debug' in CONFIG_DEBUG_RODATA, this kernel option
provides key security features that are to be expected on a modern
system. Change the name to CONFIG_HARDENED_PAGE_MAPPINGS which more
accurately describes what this option is intended to do.

Signed-off-by: Laura Abbott <labbott@redhat.com>
---
 Documentation/DocBook/kgdb.tmpl            |  8 ++++----
 Documentation/security/self-protection.txt |  2 +-
 arch/arm/Kconfig                           |  1 +
 arch/arm/configs/aspeed_g4_defconfig       |  2 +-
 arch/arm/configs/aspeed_g5_defconfig       |  2 +-
 arch/arm/include/asm/cacheflush.h          |  2 +-
 arch/arm/kernel/patch.c                    |  2 +-
 arch/arm/kernel/vmlinux.lds.S              |  8 ++++----
 arch/arm/mm/Kconfig                        | 14 +-------------
 arch/arm/mm/init.c                         |  4 ++--
 arch/arm64/Kconfig                         |  4 +---
 arch/arm64/Kconfig.debug                   |  2 +-
 arch/parisc/Kconfig                        |  1 +
 arch/parisc/Kconfig.debug                  | 11 -----------
 arch/parisc/configs/712_defconfig          |  2 +-
 arch/parisc/configs/c3000_defconfig        |  2 +-
 arch/parisc/mm/init.c                      |  2 +-
 arch/s390/Kconfig                          |  4 +---
 arch/x86/Kconfig                           |  4 +---
 include/linux/init.h                       |  4 ++--
 init/main.c                                |  4 ++--
 kernel/configs/android-recommended.config  |  2 +-
 kernel/power/hibernate.c                   |  2 +-
 kernel/power/power.h                       |  4 ++--
 kernel/power/snapshot.c                    |  4 ++--
 security/Kconfig                           | 16 ++++++++++++++++
 26 files changed, 51 insertions(+), 62 deletions(-)

diff --git a/Documentation/DocBook/kgdb.tmpl b/Documentation/DocBook/kgdb.tmpl
index f3abca7..a79b638 100644
--- a/Documentation/DocBook/kgdb.tmpl
+++ b/Documentation/DocBook/kgdb.tmpl
@@ -115,12 +115,12 @@
     </para>
     <para>
     If the architecture that you are using supports the kernel option
-    CONFIG_DEBUG_RODATA, you should consider turning it off.  This
+    CONFIG_HARDENED_PAGE_MAPPINGS, you should consider turning it off.  This
     option will prevent the use of software breakpoints because it
     marks certain regions of the kernel's memory space as read-only.
     If kgdb supports it for the architecture you are using, you can
     use hardware breakpoints if you desire to run with the
-    CONFIG_DEBUG_RODATA option turned on, else you need to turn off
+    CONFIG_HARDENED_PAGE_MAPPINGS option turned on, else you need to turn off
     this option.
     </para>
     <para>
@@ -135,7 +135,7 @@
     <para>Here is an example set of .config symbols to enable or
     disable for kgdb:
     <itemizedlist>
-    <listitem><para># CONFIG_DEBUG_RODATA is not set</para></listitem>
+    <listitem><para># CONFIG_HARDENED_PAGE_MAPPINGS is not set</para></listitem>
     <listitem><para>CONFIG_FRAME_POINTER=y</para></listitem>
     <listitem><para>CONFIG_KGDB=y</para></listitem>
     <listitem><para>CONFIG_KGDB_SERIAL_CONSOLE=y</para></listitem>
@@ -166,7 +166,7 @@
     </para>
     <para>Here is an example set of .config symbols to enable/disable kdb:
     <itemizedlist>
-    <listitem><para># CONFIG_DEBUG_RODATA is not set</para></listitem>
+    <listitem><para># CONFIG_HARDENED_PAGE_MAPPINGS is not set</para></listitem>
     <listitem><para>CONFIG_FRAME_POINTER=y</para></listitem>
     <listitem><para>CONFIG_KGDB=y</para></listitem>
     <listitem><para>CONFIG_KGDB_SERIAL_CONSOLE=y</para></listitem>
diff --git a/Documentation/security/self-protection.txt b/Documentation/security/self-protection.txt
index 3010576..da8cb36 100644
--- a/Documentation/security/self-protection.txt
+++ b/Documentation/security/self-protection.txt
@@ -51,7 +51,7 @@ kernel, they are implemented in a way where the memory is temporarily
 made writable during the update, and then returned to the original
 permissions.)
 
-In support of this are (the poorly named) CONFIG_DEBUG_RODATA and
+In support of this are CONFIG_HARDENED_PAGE_MAPPINGS and
 CONFIG_DEBUG_SET_MODULE_RONX, which seek to make sure that code is not
 writable, data is not executable, and read-only data is neither writable
 nor executable.
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 186c4c2..09aff28 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -7,6 +7,7 @@ config ARM
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_HAVE_CUSTOM_GPIO_H
 	select ARCH_HAS_GCOV_PROFILE_ALL
+	select ARCH_HAS_HARDENED_MAPPINGS if MMU && !XIP_KERNEL
 	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select ARCH_SUPPORTS_ATOMIC_RMW
 	select ARCH_USE_BUILTIN_BSWAP
diff --git a/arch/arm/configs/aspeed_g4_defconfig b/arch/arm/configs/aspeed_g4_defconfig
index ca39c04..8ccc216 100644
--- a/arch/arm/configs/aspeed_g4_defconfig
+++ b/arch/arm/configs/aspeed_g4_defconfig
@@ -25,7 +25,7 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_ARCH_MULTI_V7 is not set
 CONFIG_ARCH_ASPEED=y
 CONFIG_MACH_ASPEED_G4=y
-CONFIG_DEBUG_RODATA=y
+CONFIG_HARDENED_PAGE_MAPPINGS=y
 CONFIG_AEABI=y
 CONFIG_UACCESS_WITH_MEMCPY=y
 CONFIG_SECCOMP=y
diff --git a/arch/arm/configs/aspeed_g5_defconfig b/arch/arm/configs/aspeed_g5_defconfig
index 4f366b0..90c5ce4 100644
--- a/arch/arm/configs/aspeed_g5_defconfig
+++ b/arch/arm/configs/aspeed_g5_defconfig
@@ -26,7 +26,7 @@ CONFIG_ARCH_MULTI_V6=y
 # CONFIG_ARCH_MULTI_V7 is not set
 CONFIG_ARCH_ASPEED=y
 CONFIG_MACH_ASPEED_G5=y
-CONFIG_DEBUG_RODATA=y
+CONFIG_HARDENED_PAGE_MAPPINGS=y
 CONFIG_AEABI=y
 CONFIG_UACCESS_WITH_MEMCPY=y
 CONFIG_SECCOMP=y
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index bdd283b..c3a7a72 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -490,7 +490,7 @@ static inline int set_memory_x(unsigned long addr, int numpages) { return 0; }
 static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; }
 #endif
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
 void set_kernel_text_rw(void);
 void set_kernel_text_ro(void);
 #else
diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c
index 69bda1a..9da1bf5 100644
--- a/arch/arm/kernel/patch.c
+++ b/arch/arm/kernel/patch.c
@@ -26,7 +26,7 @@ static void __kprobes *patch_map(void *addr, int fixmap, unsigned long *flags)
 
 	if (module && IS_ENABLED(CONFIG_DEBUG_SET_MODULE_RONX))
 		page = vmalloc_to_page(addr);
-	else if (!module && IS_ENABLED(CONFIG_DEBUG_RODATA))
+	else if (!module && IS_ENABLED(CONFIG_HARDENED_PAGE_MAPPINGS))
 		page = virt_to_page(addr);
 	else
 		return addr;
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index f7f55df..5c6a2e8 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -97,7 +97,7 @@ SECTIONS
 		HEAD_TEXT
 	}
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
 	. = ALIGN(1<<SECTION_SHIFT);
 #endif
 
@@ -158,7 +158,7 @@ SECTIONS
 
 	NOTES
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
 	. = ALIGN(1<<SECTION_SHIFT);
 #else
 	. = ALIGN(PAGE_SIZE);
@@ -230,7 +230,7 @@ SECTIONS
 	PERCPU_SECTION(L1_CACHE_BYTES)
 #endif
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
 	. = ALIGN(1<<SECTION_SHIFT);
 #else
 	. = ALIGN(THREAD_SIZE);
@@ -325,7 +325,7 @@ SECTIONS
 	STABS_DEBUG
 }
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
 /*
  * Without CONFIG_DEBUG_ALIGN_RODATA, __start_rodata_section_aligned will
  * be the first section-aligned location after __start_rodata. Otherwise,
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index f68e8ec..e770dc9 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -1051,21 +1051,9 @@ config ARCH_SUPPORTS_BIG_ENDIAN
 	  This option specifies the architecture can support big endian
 	  operation.
 
-config DEBUG_RODATA
-	bool "Make kernel text and rodata read-only"
-	depends on MMU && !XIP_KERNEL
-	default y if CPU_V7
-	help
-	  If this is set, kernel text and rodata memory will be made
-	  read-only, and non-text kernel memory will be made non-executable.
-	  The tradeoff is that each region is padded to section-size (1MiB)
-	  boundaries (because their permissions are different and splitting
-	  the 1M pages into 4K ones causes TLB performance problems), which
-	  can waste memory.
-
 config DEBUG_ALIGN_RODATA
 	bool "Make rodata strictly non-executable"
-	depends on DEBUG_RODATA
+	depends on HARDENED_PAGE_MAPPINGS
 	default y
 	help
 	  If this is set, rodata will be made explicitly non-executable. This
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 370581a..303bee4 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -572,7 +572,7 @@ void __init mem_init(void)
 	}
 }
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
 struct section_perm {
 	const char *name;
 	unsigned long start;
@@ -741,7 +741,7 @@ void set_kernel_text_ro(void)
 
 #else
 static inline void fix_kernmem_perms(void) { }
-#endif /* CONFIG_DEBUG_RODATA */
+#endif /* CONFIG_HARDENED_PAGE_MAPPINGS */
 
 void free_tcmmem(void)
 {
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 1117421..06fed56 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -11,6 +11,7 @@ config ARM64
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_GIGANTIC_PAGE
+	select ARCH_HAS_HARDENED_MAPPINGS
 	select ARCH_HAS_KCOV
 	select ARCH_HAS_SG_CHAIN
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
@@ -123,9 +124,6 @@ config ARCH_PHYS_ADDR_T_64BIT
 config MMU
 	def_bool y
 
-config DEBUG_RODATA
-	def_bool y
-
 config ARM64_PAGE_SHIFT
 	int
 	default 16 if ARM64_64K_PAGES
diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
index d1ebd46..a26d27f 100644
--- a/arch/arm64/Kconfig.debug
+++ b/arch/arm64/Kconfig.debug
@@ -83,7 +83,7 @@ config DEBUG_SET_MODULE_RONX
 	  If in doubt, say Y.
 
 config DEBUG_ALIGN_RODATA
-	depends on DEBUG_RODATA
+	depends on ARCH_HAS_HARDENED_MAPPINGS
 	bool "Align linker sections up to SECTION_SIZE"
 	help
 	  If this option is enabled, sections that may potentially be marked as
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 3a71f38..7c73eaa 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -8,6 +8,7 @@ config PARISC
 	select HAVE_SYSCALL_TRACEPOINTS
 	select ARCH_WANT_FRAME_POINTERS
 	select ARCH_HAS_ELF_RANDOMIZE
+	select ARCH_HAS_HARDENED_MAPPINGS
 	select RTC_CLASS
 	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 68b7cbd..0d856b9 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -5,15 +5,4 @@ source "lib/Kconfig.debug"
 config TRACE_IRQFLAGS_SUPPORT
 	def_bool y
 
-config DEBUG_RODATA
-       bool "Write protect kernel read-only data structures"
-       depends on DEBUG_KERNEL
-       default y
-       help
-         Mark the kernel read-only data as write-protected in the pagetables,
-         in order to catch accidental (and incorrect) writes to such const
-         data. This option may have a slight performance impact because a
-         portion of the kernel code won't be covered by a TLB anymore.
-         If in doubt, say "N".
-
 endmenu
diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig
index db8f56b..f1a4732 100644
--- a/arch/parisc/configs/712_defconfig
+++ b/arch/parisc/configs/712_defconfig
@@ -182,7 +182,7 @@ CONFIG_DEBUG_FS=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
 # CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_DEBUG_RODATA=y
+CONFIG_HARDENED_PAGE_MAPPINGS=y
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_HMAC=y
diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index fb92b89..03e88e2 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -166,7 +166,7 @@ CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
 # CONFIG_DEBUG_BUGVERBOSE is not set
 # CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_DEBUG_RODATA=y
+CONFIG_HARDENED_PAGE_MAPPINGS=y
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_MD5=m
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index e02ada3..f76f8ad 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -545,7 +545,7 @@ void free_initmem(void)
 }
 
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
 void mark_rodata_ro(void)
 {
 	/* rodata memory was already mapped with KERNEL_RO access rights by
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c6722112..8e70ae5 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -62,15 +62,13 @@ config PCI_QUIRKS
 config ARCH_SUPPORTS_UPROBES
 	def_bool y
 
-config DEBUG_RODATA
-	def_bool y
-
 config S390
 	def_bool y
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_GIGANTIC_PAGE
+	select ARCH_HAS_HARDENED_MAPPINGS
 	select ARCH_HAS_KCOV
 	select ARCH_HAS_SG_CHAIN
 	select ARCH_HAS_UBSAN_SANITIZE_ALL
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e487493..9d80cd8 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -50,6 +50,7 @@ config X86
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_FAST_MULTIPLIER
 	select ARCH_HAS_GCOV_PROFILE_ALL
+	select ARCH_HAS_HARDENED_MAPPINGS
 	select ARCH_HAS_KCOV			if X86_64
 	select ARCH_HAS_MMIO_FLUSH
 	select ARCH_HAS_PMEM_API		if X86_64
@@ -309,9 +310,6 @@ config ARCH_SUPPORTS_UPROBES
 config FIX_EARLYCON_MEM
 	def_bool y
 
-config DEBUG_RODATA
-	def_bool y
-
 config PGTABLE_LEVELS
 	int
 	default 4 if X86_64
diff --git a/include/linux/init.h b/include/linux/init.h
index 885c3e6..9967bc9 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -126,10 +126,10 @@ void prepare_namespace(void);
 void __init load_default_modules(void);
 int __init init_rootfs(void);
 
-#if defined(CONFIG_DEBUG_RODATA) || defined(CONFIG_DEBUG_SET_MODULE_RONX)
+#if defined(CONFIG_HARDENED_PAGE_MAPPINGS) || defined(CONFIG_DEBUG_SET_MODULE_RONX)
 extern bool rodata_enabled;
 #endif
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
 void mark_rodata_ro(void);
 #endif
 
diff --git a/init/main.c b/init/main.c
index b0c9d6f..4b3bcc4 100644
--- a/init/main.c
+++ b/init/main.c
@@ -925,7 +925,7 @@ static int try_to_run_init_process(const char *init_filename)
 
 static noinline void __init kernel_init_freeable(void);
 
-#if defined(CONFIG_DEBUG_RODATA) || defined(CONFIG_DEBUG_SET_MODULE_RONX)
+#if defined(CONFIG_HARDENED_PAGE_MAPPINGS) || defined(CONFIG_DEBUG_SET_MODULE_RONX)
 bool rodata_enabled __ro_after_init = true;
 static int __init set_debug_rodata(char *str)
 {
@@ -934,7 +934,7 @@ static int __init set_debug_rodata(char *str)
 __setup("rodata=", set_debug_rodata);
 #endif
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
 static void mark_readonly(void)
 {
 	if (rodata_enabled)
diff --git a/kernel/configs/android-recommended.config b/kernel/configs/android-recommended.config
index 297756b..b796bc8 100644
--- a/kernel/configs/android-recommended.config
+++ b/kernel/configs/android-recommended.config
@@ -11,7 +11,7 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=8192
 CONFIG_COMPACTION=y
-CONFIG_DEBUG_RODATA=y
+CONFIG_HARDENED_PAGE_MAPPINGS=y
 CONFIG_DM_CRYPT=y
 CONFIG_DM_UEVENT=y
 CONFIG_DM_VERITY=y
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index b26dbc4..f7a3ea3 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -1156,7 +1156,7 @@ static int __init hibernate_setup(char *str)
 	} else if (!strncmp(str, "no", 2)) {
 		noresume = 1;
 		nohibernate = 1;
-	} else if (IS_ENABLED(CONFIG_DEBUG_RODATA)
+	} else if (IS_ENABLED(CONFIG_HARDENED_PAGE_MAPPINGS)
 		   && !strncmp(str, "protect_image", 13)) {
 		enable_restore_image_protection();
 	}
diff --git a/kernel/power/power.h b/kernel/power/power.h
index 1dfa0da..dc2c7b8 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -61,12 +61,12 @@ extern int hibernation_snapshot(int platform_mode);
 extern int hibernation_restore(int platform_mode);
 extern int hibernation_platform_enter(void);
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
 /* kernel/power/snapshot.c */
 extern void enable_restore_image_protection(void);
 #else
 static inline void enable_restore_image_protection(void) {}
-#endif /* CONFIG_DEBUG_RODATA */
+#endif /* CONFIG_HARDENED_PAGE_MAPPINGS */
 
 #else /* !CONFIG_HIBERNATION */
 
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 2d8e2b2..a7c793e 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -38,7 +38,7 @@
 
 #include "power.h"
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
 static bool hibernate_restore_protection;
 static bool hibernate_restore_protection_active;
 
@@ -73,7 +73,7 @@ static inline void hibernate_restore_protection_begin(void) {}
 static inline void hibernate_restore_protection_end(void) {}
 static inline void hibernate_restore_protect_page(void *page_address) {}
 static inline void hibernate_restore_unprotect_page(void *page_address) {}
-#endif /* CONFIG_DEBUG_RODATA */
+#endif /* CONFIG_HARDENED_PAGE_MAPPINGS */
 
 static int swsusp_page_is_free(struct page *);
 static void swsusp_set_page_forbidden(struct page *);
diff --git a/security/Kconfig b/security/Kconfig
index 118f454..ad6ce82 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -158,6 +158,22 @@ config HARDENED_USERCOPY_PAGESPAN
 	  been removed. This config is intended to be used only while
 	  trying to find such users.
 
+config ARCH_HAS_HARDENED_MAPPINGS
+	def_bool n
+
+config HARDENED_PAGE_MAPPINGS
+	bool "Mark kernel mappings with stricter permissions (RO/W^X)"
+	default y
+	depends on ARCH_HAS_HARDENED_MAPPINGS
+	help
+          If this is set, kernel text and rodata memory will be made read-only,
+	  and non-text memory will be made non-executable. This provides
+	  protection against certain security attacks (e.g. executing the heap
+	  or modifying text).
+
+	  Unless your system has known restrictions or performance issues, it
+	  is recommended to say Y here.
+
 source security/selinux/Kconfig
 source security/smack/Kconfig
 source security/tomoyo/Kconfig
-- 
2.7.4



From - Thu Nov 08 21:39:32 2018
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From: Laura Abbott <labbott@redhat.com>
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Subject: [PATCH 2/2] security: Change name of CONFIG_DEBUG_SET_MODULE_RONX
Date: Wed, 18 Jan 2017 17:29:06 -0800
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Cc: Laura Abbott <labbott@redhat.com>,
	Jason Wessel <jason.wessel@windriver.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Russell King <linux@armlinux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
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	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org,
	Rob Herring <robh@kernel.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
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	Pavel Machek <pavel@ucw.cz>,
	Mark Rutland <mark.rutland@arm.com>,
	Jessica Yu <jeyu@redhat.com>,
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	linux-arm-kernel@lists.infradead.org,
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	linux-s390@vger.kernel.org,
	li
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Despite the word 'debug' in CONFIG_DEBUG_SET_MODULE_RONX, this kernel
option provides key security features that are to be expected on a
modern system. Change the name to CONFIG_HARDENED_MODULE_MAPPINGS which
more accurately describes what this option is intended to do.

Signed-off-by: Laura Abbott <labbott@redhat.com>
---
 Documentation/security/self-protection.txt |  2 +-
 arch/arm/Kconfig                           |  1 +
 arch/arm/Kconfig.debug                     | 11 -----------
 arch/arm/configs/aspeed_g4_defconfig       |  2 +-
 arch/arm/configs/aspeed_g5_defconfig       |  2 +-
 arch/arm/kernel/patch.c                    |  2 +-
 arch/arm64/Kconfig                         |  1 +
 arch/arm64/Kconfig.debug                   | 11 -----------
 arch/arm64/kernel/insn.c                   |  2 +-
 arch/s390/Kconfig                          |  1 +
 arch/s390/Kconfig.debug                    |  3 ---
 arch/x86/Kconfig                           |  1 +
 arch/x86/Kconfig.debug                     | 11 -----------
 include/linux/filter.h                     |  4 ++--
 include/linux/init.h                       |  2 +-
 include/linux/module.h                     |  2 +-
 init/main.c                                |  2 +-
 kernel/module.c                            |  6 +++---
 security/Kconfig                           | 16 ++++++++++++++++
 19 files changed, 33 insertions(+), 49 deletions(-)

diff --git a/Documentation/security/self-protection.txt b/Documentation/security/self-protection.txt
index da8cb36..eb018a1 100644
--- a/Documentation/security/self-protection.txt
+++ b/Documentation/security/self-protection.txt
@@ -52,7 +52,7 @@ made writable during the update, and then returned to the original
 permissions.)
 
 In support of this are CONFIG_HARDENED_PAGE_MAPPINGS and
-CONFIG_DEBUG_SET_MODULE_RONX, which seek to make sure that code is not
+CONFIG_HARDENED_MODULE_MAPPINGS, which seek to make sure that code is not
 writable, data is not executable, and read-only data is neither writable
 nor executable.
 
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 09aff28..ef852e4 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -8,6 +8,7 @@ config ARM
 	select ARCH_HAVE_CUSTOM_GPIO_H
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_HARDENED_MAPPINGS if MMU && !XIP_KERNEL
+	select ARCH_HAS_HARDENED_MODULE_MAPPINGS if MMU
 	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select ARCH_SUPPORTS_ATOMIC_RMW
 	select ARCH_USE_BUILTIN_BSWAP
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index d83f7c3..426d271 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -1738,17 +1738,6 @@ config PID_IN_CONTEXTIDR
 	  additional instructions during context switch. Say Y here only if you
 	  are planning to use hardware trace tools with this kernel.
 
-config DEBUG_SET_MODULE_RONX
-	bool "Set loadable kernel module data as NX and text as RO"
-	depends on MODULES && MMU
-	---help---
-	  This option helps catch unintended modifications to loadable
-	  kernel module's text and read-only data. It also prevents execution
-	  of module data. Such protection may interfere with run-time code
-	  patching and dynamic kernel tracing - and they might also protect
-	  against certain classes of kernel exploits.
-	  If in doubt, say "N".
-
 source "drivers/hwtracing/coresight/Kconfig"
 
 endmenu
diff --git a/arch/arm/configs/aspeed_g4_defconfig b/arch/arm/configs/aspeed_g4_defconfig
index 8ccc216..ffe2656 100644
--- a/arch/arm/configs/aspeed_g4_defconfig
+++ b/arch/arm/configs/aspeed_g4_defconfig
@@ -79,7 +79,7 @@ CONFIG_DEBUG_LL_UART_8250=y
 CONFIG_DEBUG_UART_PHYS=0x1e784000
 CONFIG_DEBUG_UART_VIRT=0xe8784000
 CONFIG_EARLY_PRINTK=y
-CONFIG_DEBUG_SET_MODULE_RONX=y
+CONFIG_HARDENED_MODULE_MAPPINGS=y
 # CONFIG_XZ_DEC_X86 is not set
 # CONFIG_XZ_DEC_POWERPC is not set
 # CONFIG_XZ_DEC_IA64 is not set
diff --git a/arch/arm/configs/aspeed_g5_defconfig b/arch/arm/configs/aspeed_g5_defconfig
index 90c5ce4..2ea444e 100644
--- a/arch/arm/configs/aspeed_g5_defconfig
+++ b/arch/arm/configs/aspeed_g5_defconfig
@@ -81,7 +81,7 @@ CONFIG_DEBUG_LL_UART_8250=y
 CONFIG_DEBUG_UART_PHYS=0x1e784000
 CONFIG_DEBUG_UART_VIRT=0xe8784000
 CONFIG_EARLY_PRINTK=y
-CONFIG_DEBUG_SET_MODULE_RONX=y
+CONFIG_HARDENED_MODULE_MAPPINGS=y
 # CONFIG_XZ_DEC_X86 is not set
 # CONFIG_XZ_DEC_POWERPC is not set
 # CONFIG_XZ_DEC_IA64 is not set
diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c
index 9da1bf5..eb73a76 100644
--- a/arch/arm/kernel/patch.c
+++ b/arch/arm/kernel/patch.c
@@ -24,7 +24,7 @@ static void __kprobes *patch_map(void *addr, int fixmap, unsigned long *flags)
 	bool module = !core_kernel_text(uintaddr);
 	struct page *page;
 
-	if (module && IS_ENABLED(CONFIG_DEBUG_SET_MODULE_RONX))
+	if (module && IS_ENABLED(CONFIG_HARDENED_MODULE_MAPPINGS))
 		page = vmalloc_to_page(addr);
 	else if (!module && IS_ENABLED(CONFIG_HARDENED_PAGE_MAPPINGS))
 		page = virt_to_page(addr);
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 06fed56..2fe0e98 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -12,6 +12,7 @@ config ARM64
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_GIGANTIC_PAGE
 	select ARCH_HAS_HARDENED_MAPPINGS
+	select ARCH_HAS_HARDENED_MODULE_MAPPINGS
 	select ARCH_HAS_KCOV
 	select ARCH_HAS_SG_CHAIN
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
index a26d27f..1eebe1f 100644
--- a/arch/arm64/Kconfig.debug
+++ b/arch/arm64/Kconfig.debug
@@ -71,17 +71,6 @@ config DEBUG_WX
 
 	  If in doubt, say "Y".
 
-config DEBUG_SET_MODULE_RONX
-	bool "Set loadable kernel module data as NX and text as RO"
-	depends on MODULES
-	default y
-	help
-	  Is this is set, kernel module text and rodata will be made read-only.
-	  This is to help catch accidental or malicious attempts to change the
-	  kernel's executable code.
-
-	  If in doubt, say Y.
-
 config DEBUG_ALIGN_RODATA
 	depends on ARCH_HAS_HARDENED_MAPPINGS
 	bool "Align linker sections up to SECTION_SIZE"
diff --git a/arch/arm64/kernel/insn.c b/arch/arm64/kernel/insn.c
index 94b62c1..31bd53f 100644
--- a/arch/arm64/kernel/insn.c
+++ b/arch/arm64/kernel/insn.c
@@ -93,7 +93,7 @@ static void __kprobes *patch_map(void *addr, int fixmap)
 	bool module = !core_kernel_text(uintaddr);
 	struct page *page;
 
-	if (module && IS_ENABLED(CONFIG_DEBUG_SET_MODULE_RONX))
+	if (module && IS_ENABLED(CONFIG_HARDENED_MODULE_MAPPINGS))
 		page = vmalloc_to_page(addr);
 	else if (!module)
 		page = pfn_to_page(PHYS_PFN(__pa(addr)));
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 8e70ae5..b1e6ed5 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -69,6 +69,7 @@ config S390
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_GIGANTIC_PAGE
 	select ARCH_HAS_HARDENED_MAPPINGS
+	select ARCH_HAS_HARDENED_MODULE_MAPPINGS
 	select ARCH_HAS_KCOV
 	select ARCH_HAS_SG_CHAIN
 	select ARCH_HAS_UBSAN_SANITIZE_ALL
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index 26c5d5be..57f8ea9 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -17,7 +17,4 @@ config S390_PTDUMP
 	  kernel.
 	  If in doubt, say "N"
 
-config DEBUG_SET_MODULE_RONX
-	def_bool y
-	depends on MODULES
 endmenu
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 9d80cd8..38ce850 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -51,6 +51,7 @@ config X86
 	select ARCH_HAS_FAST_MULTIPLIER
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_HARDENED_MAPPINGS
+	select ARCH_HAS_HARDENED_MODULE_MAPPINGS
 	select ARCH_HAS_KCOV			if X86_64
 	select ARCH_HAS_MMIO_FLUSH
 	select ARCH_HAS_PMEM_API		if X86_64
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 67eec55..69cdd0b 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -109,17 +109,6 @@ config DEBUG_WX
 
 	  If in doubt, say "Y".
 
-config DEBUG_SET_MODULE_RONX
-	bool "Set loadable kernel module data as NX and text as RO"
-	depends on MODULES
-	---help---
-	  This option helps catch unintended modifications to loadable
-	  kernel module's text and read-only data. It also prevents execution
-	  of module data. Such protection may interfere with run-time code
-	  patching and dynamic kernel tracing - and they might also protect
-	  against certain classes of kernel exploits.
-	  If in doubt, say "N".
-
 config DEBUG_NX_TEST
 	tristate "Testcase for the NX non-executable stack feature"
 	depends on DEBUG_KERNEL && m
diff --git a/include/linux/filter.h b/include/linux/filter.h
index e4eb254..5426940 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -545,7 +545,7 @@ static inline bool bpf_prog_was_classic(const struct bpf_prog *prog)
 
 #define bpf_classic_proglen(fprog) (fprog->len * sizeof(fprog->filter[0]))
 
-#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+#ifdef CONFIG_HARDENED_MODULE_MAPPINGS
 static inline void bpf_prog_lock_ro(struct bpf_prog *fp)
 {
 	set_memory_ro((unsigned long)fp, fp->pages);
@@ -563,7 +563,7 @@ static inline void bpf_prog_lock_ro(struct bpf_prog *fp)
 static inline void bpf_prog_unlock_ro(struct bpf_prog *fp)
 {
 }
-#endif /* CONFIG_DEBUG_SET_MODULE_RONX */
+#endif /* CONFIG_HARDENED_MODULE_MAPPINGS */
 
 int sk_filter_trim_cap(struct sock *sk, struct sk_buff *skb, unsigned int cap);
 static inline int sk_filter(struct sock *sk, struct sk_buff *skb)
diff --git a/include/linux/init.h b/include/linux/init.h
index 9967bc9..5d6b0b2 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -126,7 +126,7 @@ void prepare_namespace(void);
 void __init load_default_modules(void);
 int __init init_rootfs(void);
 
-#if defined(CONFIG_HARDENED_PAGE_MAPPINGS) || defined(CONFIG_DEBUG_SET_MODULE_RONX)
+#if defined(CONFIG_HARDENED_PAGE_MAPPINGS) || defined(CONFIG_HARDENED_MODULE_MAPPINGS)
 extern bool rodata_enabled;
 #endif
 #ifdef CONFIG_HARDENED_PAGE_MAPPINGS
diff --git a/include/linux/module.h b/include/linux/module.h
index 7c84273..a4f6926 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -764,7 +764,7 @@ extern int module_sysfs_initialized;
 
 #define __MODULE_STRING(x) __stringify(x)
 
-#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+#ifdef CONFIG_HARDENED_MODULE_MAPPINGS
 extern void set_all_modules_text_rw(void);
 extern void set_all_modules_text_ro(void);
 extern void module_enable_ro(const struct module *mod, bool after_init);
diff --git a/init/main.c b/init/main.c
index 4b3bcc4..1545399 100644
--- a/init/main.c
+++ b/init/main.c
@@ -925,7 +925,7 @@ static int try_to_run_init_process(const char *init_filename)
 
 static noinline void __init kernel_init_freeable(void);
 
-#if defined(CONFIG_HARDENED_PAGE_MAPPINGS) || defined(CONFIG_DEBUG_SET_MODULE_RONX)
+#if defined(CONFIG_HARDENED_PAGE_MAPPINGS) || defined(CONFIG_HARDENED_MODULE_MAPPINGS)
 bool rodata_enabled __ro_after_init = true;
 static int __init set_debug_rodata(char *str)
 {
diff --git a/kernel/module.c b/kernel/module.c
index 38d4270..eb2f865 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -74,9 +74,9 @@
 /*
  * Modules' sections will be aligned on page boundaries
  * to ensure complete separation of code and data, but
- * only when CONFIG_DEBUG_SET_MODULE_RONX=y
+ * only when CONFIG_HARDENED_MODULE_MAPPINGS=y
  */
-#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+#ifdef CONFIG_HARDENED_MODULE_MAPPINGS
 # define debug_align(X) ALIGN(X, PAGE_SIZE)
 #else
 # define debug_align(X) (X)
@@ -1847,7 +1847,7 @@ static void mod_sysfs_teardown(struct module *mod)
 	mod_sysfs_fini(mod);
 }
 
-#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+#ifdef CONFIG_HARDENED_MODULE_MAPPINGS
 /*
  * LKM RO/NX protection: protect module's text/ro-data
  * from modification and any data from execution.
diff --git a/security/Kconfig b/security/Kconfig
index ad6ce82..0f98d6b 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -174,6 +174,22 @@ config HARDENED_PAGE_MAPPINGS
 	  Unless your system has known restrictions or performance issues, it
 	  is recommended to say Y here.
 
+config ARCH_HAS_HARDENED_MODULE_MAPPINGS
+	def_bool n
+
+config HARDENED_MODULE_MAPPINGS
+	bool "Mark module mappings with stricter permissions (RO/W^X)"
+	default y
+	depends on ARCH_HAS_HARDENED_MODULE_MAPPINGS
+	help
+	  If this is set, module text and rodata memory will be made read-only,
+	  and non-text memory will be made non-executable. This provides
+	  protection against certain security vulnerabilities (e.g. modifying
+	  code)
+
+	  Unless your system has known restrictions or performance issues, it
+	  is recommended to say Y here.
+
 source security/selinux/Kconfig
 source security/smack/Kconfig
 source security/tomoyo/Kconfig
-- 
2.7.4



From - Thu Nov 08 21:39:32 2018
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From: Pavel Machek <pavel@ucw.cz>
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Subject: Re: [PATCH 1/2] security: Change name of CONFIG_DEBUG_RODATA
Date: Thu, 19 Jan 2017 08:53:41 +0100
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On Wed 2017-01-18 17:29:05, Laura Abbott wrote:
>=20
> Despite the word 'debug' in CONFIG_DEBUG_RODATA, this kernel option
> provides key security features that are to be expected on a modern
> system. Change the name to CONFIG_HARDENED_PAGE_MAPPINGS which more
> accurately describes what this option is intended to do.

I think this is bad change. CONFIG_DEBUG_RODATA is describing what it
does, CONFIG_HARDENED_PAGE_MAPPINGS is advertising.

We don't do advertising, and we don't force people to re-answer the
config questions without good reason.

CONFIG_HARDENED_RODATA might fix the first problem, but not the second
one.

								Pavel
							=09

> Signed-off-by: Laura Abbott <labbott@redhat.com>
> ---
>  Documentation/DocBook/kgdb.tmpl            |  8 ++++----
>  Documentation/security/self-protection.txt |  2 +-
>  arch/arm/Kconfig                           |  1 +
>  arch/arm/configs/aspeed_g4_defconfig       |  2 +-
>  arch/arm/configs/aspeed_g5_defconfig       |  2 +-
>  arch/arm/include/asm/cacheflush.h          |  2 +-
>  arch/arm/kernel/patch.c                    |  2 +-
>  arch/arm/kernel/vmlinux.lds.S              |  8 ++++----
>  arch/arm/mm/Kconfig                        | 14 +-------------
>  arch/arm/mm/init.c                         |  4 ++--
>  arch/arm64/Kconfig                         |  4 +---
>  arch/arm64/Kconfig.debug                   |  2 +-
>  arch/parisc/Kconfig                        |  1 +
>  arch/parisc/Kconfig.debug                  | 11 -----------
>  arch/parisc/configs/712_defconfig          |  2 +-
>  arch/parisc/configs/c3000_defconfig        |  2 +-
>  arch/parisc/mm/init.c                      |  2 +-
>  arch/s390/Kconfig                          |  4 +---
>  arch/x86/Kconfig                           |  4 +---
>  include/linux/init.h                       |  4 ++--
>  init/main.c                                |  4 ++--
>  kernel/configs/android-recommended.config  |  2 +-
>  kernel/power/hibernate.c                   |  2 +-
>  kernel/power/power.h                       |  4 ++--
>  kernel/power/snapshot.c                    |  4 ++--
>  security/Kconfig                           | 16 ++++++++++++++++
>  26 files changed, 51 insertions(+), 62 deletions(-)
>=20
> diff --git a/Documentation/DocBook/kgdb.tmpl b/Documentation/DocBook/kgdb=
=2Etmpl
> index f3abca7..a79b638 100644
> --- a/Documentation/DocBook/kgdb.tmpl
> +++ b/Documentation/DocBook/kgdb.tmpl
> @@ -115,12 +115,12 @@
>      </para>
>      <para>
>      If the architecture that you are using supports the kernel option
> -    CONFIG_DEBUG_RODATA, you should consider turning it off.  This
> +    CONFIG_HARDENED_PAGE_MAPPINGS, you should consider turning it off.  =
This
>      option will prevent the use of software breakpoints because it
>      marks certain regions of the kernel's memory space as read-only.
>      If kgdb supports it for the architecture you are using, you can
>      use hardware breakpoints if you desire to run with the
> -    CONFIG_DEBUG_RODATA option turned on, else you need to turn off
> +    CONFIG_HARDENED_PAGE_MAPPINGS option turned on, else you need to tur=
n off
>      this option.
>      </para>
>      <para>
> @@ -135,7 +135,7 @@
>      <para>Here is an example set of .config symbols to enable or
>      disable for kgdb:
>      <itemizedlist>
> -    <listitem><para># CONFIG_DEBUG_RODATA is not set</para></listitem>
> +    <listitem><para># CONFIG_HARDENED_PAGE_MAPPINGS is not set</para></l=
istitem>
>      <listitem><para>CONFIG_FRAME_POINTER=3Dy</para></listitem>
>      <listitem><para>CONFIG_KGDB=3Dy</para></listitem>
>      <listitem><para>CONFIG_KGDB_SERIAL_CONSOLE=3Dy</para></listitem>
> @@ -166,7 +166,7 @@
>      </para>
>      <para>Here is an example set of .config symbols to enable/disable kd=
b:
>      <itemizedlist>
> -    <listitem><para># CONFIG_DEBUG_RODATA is not set</para></listitem>
> +    <listitem><para># CONFIG_HARDENED_PAGE_MAPPINGS is not set</para></l=
istitem>
>      <listitem><para>CONFIG_FRAME_POINTER=3Dy</para></listitem>
>      <listitem><para>CONFIG_KGDB=3Dy</para></listitem>
>      <listitem><para>CONFIG_KGDB_SERIAL_CONSOLE=3Dy</para></listitem>
> diff --git a/Documentation/security/self-protection.txt b/Documentation/s=
ecurity/self-protection.txt
> index 3010576..da8cb36 100644
> --- a/Documentation/security/self-protection.txt
> +++ b/Documentation/security/self-protection.txt
> @@ -51,7 +51,7 @@ kernel, they are implemented in a way where the memory =
is temporarily
>  made writable during the update, and then returned to the original
>  permissions.)
> =20
> -In support of this are (the poorly named) CONFIG_DEBUG_RODATA and
> +In support of this are CONFIG_HARDENED_PAGE_MAPPINGS and
>  CONFIG_DEBUG_SET_MODULE_RONX, which seek to make sure that code is not
>  writable, data is not executable, and read-only data is neither writable
>  nor executable.
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 186c4c2..09aff28 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -7,6 +7,7 @@ config ARM
>  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
>  	select ARCH_HAVE_CUSTOM_GPIO_H
>  	select ARCH_HAS_GCOV_PROFILE_ALL
> +	select ARCH_HAS_HARDENED_MAPPINGS if MMU && !XIP_KERNEL
>  	select ARCH_MIGHT_HAVE_PC_PARPORT
>  	select ARCH_SUPPORTS_ATOMIC_RMW
>  	select ARCH_USE_BUILTIN_BSWAP
> diff --git a/arch/arm/configs/aspeed_g4_defconfig b/arch/arm/configs/aspe=
ed_g4_defconfig
> index ca39c04..8ccc216 100644
> --- a/arch/arm/configs/aspeed_g4_defconfig
> +++ b/arch/arm/configs/aspeed_g4_defconfig
> @@ -25,7 +25,7 @@ CONFIG_MODULE_UNLOAD=3Dy
>  # CONFIG_ARCH_MULTI_V7 is not set
>  CONFIG_ARCH_ASPEED=3Dy
>  CONFIG_MACH_ASPEED_G4=3Dy
> -CONFIG_DEBUG_RODATA=3Dy
> +CONFIG_HARDENED_PAGE_MAPPINGS=3Dy
>  CONFIG_AEABI=3Dy
>  CONFIG_UACCESS_WITH_MEMCPY=3Dy
>  CONFIG_SECCOMP=3Dy
> diff --git a/arch/arm/configs/aspeed_g5_defconfig b/arch/arm/configs/aspe=
ed_g5_defconfig
> index 4f366b0..90c5ce4 100644
> --- a/arch/arm/configs/aspeed_g5_defconfig
> +++ b/arch/arm/configs/aspeed_g5_defconfig
> @@ -26,7 +26,7 @@ CONFIG_ARCH_MULTI_V6=3Dy
>  # CONFIG_ARCH_MULTI_V7 is not set
>  CONFIG_ARCH_ASPEED=3Dy
>  CONFIG_MACH_ASPEED_G5=3Dy
> -CONFIG_DEBUG_RODATA=3Dy
> +CONFIG_HARDENED_PAGE_MAPPINGS=3Dy
>  CONFIG_AEABI=3Dy
>  CONFIG_UACCESS_WITH_MEMCPY=3Dy
>  CONFIG_SECCOMP=3Dy
> diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cac=
heflush.h
> index bdd283b..c3a7a72 100644
> --- a/arch/arm/include/asm/cacheflush.h
> +++ b/arch/arm/include/asm/cacheflush.h
> @@ -490,7 +490,7 @@ static inline int set_memory_x(unsigned long addr, in=
t numpages) { return 0; }
>  static inline int set_memory_nx(unsigned long addr, int numpages) { retu=
rn 0; }
>  #endif
> =20
> -#ifdef CONFIG_DEBUG_RODATA
> +#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
>  void set_kernel_text_rw(void);
>  void set_kernel_text_ro(void);
>  #else
> diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c
> index 69bda1a..9da1bf5 100644
> --- a/arch/arm/kernel/patch.c
> +++ b/arch/arm/kernel/patch.c
> @@ -26,7 +26,7 @@ static void __kprobes *patch_map(void *addr, int fixmap=
, unsigned long *flags)
> =20
>  	if (module && IS_ENABLED(CONFIG_DEBUG_SET_MODULE_RONX))
>  		page =3D vmalloc_to_page(addr);
> -	else if (!module && IS_ENABLED(CONFIG_DEBUG_RODATA))
> +	else if (!module && IS_ENABLED(CONFIG_HARDENED_PAGE_MAPPINGS))
>  		page =3D virt_to_page(addr);
>  	else
>  		return addr;
> diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
> index f7f55df..5c6a2e8 100644
> --- a/arch/arm/kernel/vmlinux.lds.S
> +++ b/arch/arm/kernel/vmlinux.lds.S
> @@ -97,7 +97,7 @@ SECTIONS
>  		HEAD_TEXT
>  	}
> =20
> -#ifdef CONFIG_DEBUG_RODATA
> +#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
>  	. =3D ALIGN(1<<SECTION_SHIFT);
>  #endif
> =20
> @@ -158,7 +158,7 @@ SECTIONS
> =20
>  	NOTES
> =20
> -#ifdef CONFIG_DEBUG_RODATA
> +#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
>  	. =3D ALIGN(1<<SECTION_SHIFT);
>  #else
>  	. =3D ALIGN(PAGE_SIZE);
> @@ -230,7 +230,7 @@ SECTIONS
>  	PERCPU_SECTION(L1_CACHE_BYTES)
>  #endif
> =20
> -#ifdef CONFIG_DEBUG_RODATA
> +#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
>  	. =3D ALIGN(1<<SECTION_SHIFT);
>  #else
>  	. =3D ALIGN(THREAD_SIZE);
> @@ -325,7 +325,7 @@ SECTIONS
>  	STABS_DEBUG
>  }
> =20
> -#ifdef CONFIG_DEBUG_RODATA
> +#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
>  /*
>   * Without CONFIG_DEBUG_ALIGN_RODATA, __start_rodata_section_aligned will
>   * be the first section-aligned location after __start_rodata. Otherwise,
> diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
> index f68e8ec..e770dc9 100644
> --- a/arch/arm/mm/Kconfig
> +++ b/arch/arm/mm/Kconfig
> @@ -1051,21 +1051,9 @@ config ARCH_SUPPORTS_BIG_ENDIAN
>  	  This option specifies the architecture can support big endian
>  	  operation.
> =20
> -config DEBUG_RODATA
> -	bool "Make kernel text and rodata read-only"
> -	depends on MMU && !XIP_KERNEL
> -	default y if CPU_V7
> -	help
> -	  If this is set, kernel text and rodata memory will be made
> -	  read-only, and non-text kernel memory will be made non-executable.
> -	  The tradeoff is that each region is padded to section-size (1MiB)
> -	  boundaries (because their permissions are different and splitting
> -	  the 1M pages into 4K ones causes TLB performance problems), which
> -	  can waste memory.
> -
>  config DEBUG_ALIGN_RODATA
>  	bool "Make rodata strictly non-executable"
> -	depends on DEBUG_RODATA
> +	depends on HARDENED_PAGE_MAPPINGS
>  	default y
>  	help
>  	  If this is set, rodata will be made explicitly non-executable. This
> diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
> index 370581a..303bee4 100644
> --- a/arch/arm/mm/init.c
> +++ b/arch/arm/mm/init.c
> @@ -572,7 +572,7 @@ void __init mem_init(void)
>  	}
>  }
> =20
> -#ifdef CONFIG_DEBUG_RODATA
> +#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
>  struct section_perm {
>  	const char *name;
>  	unsigned long start;
> @@ -741,7 +741,7 @@ void set_kernel_text_ro(void)
> =20
>  #else
>  static inline void fix_kernmem_perms(void) { }
> -#endif /* CONFIG_DEBUG_RODATA */
> +#endif /* CONFIG_HARDENED_PAGE_MAPPINGS */
> =20
>  void free_tcmmem(void)
>  {
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 1117421..06fed56 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -11,6 +11,7 @@ config ARM64
>  	select ARCH_HAS_ELF_RANDOMIZE
>  	select ARCH_HAS_GCOV_PROFILE_ALL
>  	select ARCH_HAS_GIGANTIC_PAGE
> +	select ARCH_HAS_HARDENED_MAPPINGS
>  	select ARCH_HAS_KCOV
>  	select ARCH_HAS_SG_CHAIN
>  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
> @@ -123,9 +124,6 @@ config ARCH_PHYS_ADDR_T_64BIT
>  config MMU
>  	def_bool y
> =20
> -config DEBUG_RODATA
> -	def_bool y
> -
>  config ARM64_PAGE_SHIFT
>  	int
>  	default 16 if ARM64_64K_PAGES
> diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
> index d1ebd46..a26d27f 100644
> --- a/arch/arm64/Kconfig.debug
> +++ b/arch/arm64/Kconfig.debug
> @@ -83,7 +83,7 @@ config DEBUG_SET_MODULE_RONX
>  	  If in doubt, say Y.
> =20
>  config DEBUG_ALIGN_RODATA
> -	depends on DEBUG_RODATA
> +	depends on ARCH_HAS_HARDENED_MAPPINGS
>  	bool "Align linker sections up to SECTION_SIZE"
>  	help
>  	  If this option is enabled, sections that may potentially be marked as
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index 3a71f38..7c73eaa 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -8,6 +8,7 @@ config PARISC
>  	select HAVE_SYSCALL_TRACEPOINTS
>  	select ARCH_WANT_FRAME_POINTERS
>  	select ARCH_HAS_ELF_RANDOMIZE
> +	select ARCH_HAS_HARDENED_MAPPINGS
>  	select RTC_CLASS
>  	select RTC_DRV_GENERIC
>  	select INIT_ALL_POSSIBLE
> diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
> index 68b7cbd..0d856b9 100644
> --- a/arch/parisc/Kconfig.debug
> +++ b/arch/parisc/Kconfig.debug
> @@ -5,15 +5,4 @@ source "lib/Kconfig.debug"
>  config TRACE_IRQFLAGS_SUPPORT
>  	def_bool y
> =20
> -config DEBUG_RODATA
> -       bool "Write protect kernel read-only data structures"
> -       depends on DEBUG_KERNEL
> -       default y
> -       help
> -         Mark the kernel read-only data as write-protected in the pageta=
bles,
> -         in order to catch accidental (and incorrect) writes to such con=
st
> -         data. This option may have a slight performance impact because a
> -         portion of the kernel code won't be covered by a TLB anymore.
> -         If in doubt, say "N".
> -
>  endmenu
> diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_=
defconfig
> index db8f56b..f1a4732 100644
> --- a/arch/parisc/configs/712_defconfig
> +++ b/arch/parisc/configs/712_defconfig
> @@ -182,7 +182,7 @@ CONFIG_DEBUG_FS=3Dy
>  CONFIG_DEBUG_KERNEL=3Dy
>  CONFIG_DEBUG_MUTEXES=3Dy
>  # CONFIG_RCU_CPU_STALL_DETECTOR is not set
> -CONFIG_DEBUG_RODATA=3Dy
> +CONFIG_HARDENED_PAGE_MAPPINGS=3Dy
>  CONFIG_CRYPTO_NULL=3Dm
>  CONFIG_CRYPTO_TEST=3Dm
>  CONFIG_CRYPTO_HMAC=3Dy
> diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3=
000_defconfig
> index fb92b89..03e88e2 100644
> --- a/arch/parisc/configs/c3000_defconfig
> +++ b/arch/parisc/configs/c3000_defconfig
> @@ -166,7 +166,7 @@ CONFIG_DEBUG_KERNEL=3Dy
>  CONFIG_DEBUG_MUTEXES=3Dy
>  # CONFIG_DEBUG_BUGVERBOSE is not set
>  # CONFIG_RCU_CPU_STALL_DETECTOR is not set
> -CONFIG_DEBUG_RODATA=3Dy
> +CONFIG_HARDENED_PAGE_MAPPINGS=3Dy
>  CONFIG_CRYPTO_NULL=3Dm
>  CONFIG_CRYPTO_TEST=3Dm
>  CONFIG_CRYPTO_MD5=3Dm
> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> index e02ada3..f76f8ad 100644
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -545,7 +545,7 @@ void free_initmem(void)
>  }
> =20
> =20
> -#ifdef CONFIG_DEBUG_RODATA
> +#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
>  void mark_rodata_ro(void)
>  {
>  	/* rodata memory was already mapped with KERNEL_RO access rights by
> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> index c6722112..8e70ae5 100644
> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -62,15 +62,13 @@ config PCI_QUIRKS
>  config ARCH_SUPPORTS_UPROBES
>  	def_bool y
> =20
> -config DEBUG_RODATA
> -	def_bool y
> -
>  config S390
>  	def_bool y
>  	select ARCH_HAS_DEVMEM_IS_ALLOWED
>  	select ARCH_HAS_ELF_RANDOMIZE
>  	select ARCH_HAS_GCOV_PROFILE_ALL
>  	select ARCH_HAS_GIGANTIC_PAGE
> +	select ARCH_HAS_HARDENED_MAPPINGS
>  	select ARCH_HAS_KCOV
>  	select ARCH_HAS_SG_CHAIN
>  	select ARCH_HAS_UBSAN_SANITIZE_ALL
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index e487493..9d80cd8 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -50,6 +50,7 @@ config X86
>  	select ARCH_HAS_ELF_RANDOMIZE
>  	select ARCH_HAS_FAST_MULTIPLIER
>  	select ARCH_HAS_GCOV_PROFILE_ALL
> +	select ARCH_HAS_HARDENED_MAPPINGS
>  	select ARCH_HAS_KCOV			if X86_64
>  	select ARCH_HAS_MMIO_FLUSH
>  	select ARCH_HAS_PMEM_API		if X86_64
> @@ -309,9 +310,6 @@ config ARCH_SUPPORTS_UPROBES
>  config FIX_EARLYCON_MEM
>  	def_bool y
> =20
> -config DEBUG_RODATA
> -	def_bool y
> -
>  config PGTABLE_LEVELS
>  	int
>  	default 4 if X86_64
> diff --git a/include/linux/init.h b/include/linux/init.h
> index 885c3e6..9967bc9 100644
> --- a/include/linux/init.h
> +++ b/include/linux/init.h
> @@ -126,10 +126,10 @@ void prepare_namespace(void);
>  void __init load_default_modules(void);
>  int __init init_rootfs(void);
> =20
> -#if defined(CONFIG_DEBUG_RODATA) || defined(CONFIG_DEBUG_SET_MODULE_RONX)
> +#if defined(CONFIG_HARDENED_PAGE_MAPPINGS) || defined(CONFIG_DEBUG_SET_M=
ODULE_RONX)
>  extern bool rodata_enabled;
>  #endif
> -#ifdef CONFIG_DEBUG_RODATA
> +#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
>  void mark_rodata_ro(void);
>  #endif
> =20
> diff --git a/init/main.c b/init/main.c
> index b0c9d6f..4b3bcc4 100644
> --- a/init/main.c
> +++ b/init/main.c
> @@ -925,7 +925,7 @@ static int try_to_run_init_process(const char *init_f=
ilename)
> =20
>  static noinline void __init kernel_init_freeable(void);
> =20
> -#if defined(CONFIG_DEBUG_RODATA) || defined(CONFIG_DEBUG_SET_MODULE_RONX)
> +#if defined(CONFIG_HARDENED_PAGE_MAPPINGS) || defined(CONFIG_DEBUG_SET_M=
ODULE_RONX)
>  bool rodata_enabled __ro_after_init =3D true;
>  static int __init set_debug_rodata(char *str)
>  {
> @@ -934,7 +934,7 @@ static int __init set_debug_rodata(char *str)
>  __setup("rodata=3D", set_debug_rodata);
>  #endif
> =20
> -#ifdef CONFIG_DEBUG_RODATA
> +#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
>  static void mark_readonly(void)
>  {
>  	if (rodata_enabled)
> diff --git a/kernel/configs/android-recommended.config b/kernel/configs/a=
ndroid-recommended.config
> index 297756b..b796bc8 100644
> --- a/kernel/configs/android-recommended.config
> +++ b/kernel/configs/android-recommended.config
> @@ -11,7 +11,7 @@ CONFIG_BLK_DEV_LOOP=3Dy
>  CONFIG_BLK_DEV_RAM=3Dy
>  CONFIG_BLK_DEV_RAM_SIZE=3D8192
>  CONFIG_COMPACTION=3Dy
> -CONFIG_DEBUG_RODATA=3Dy
> +CONFIG_HARDENED_PAGE_MAPPINGS=3Dy
>  CONFIG_DM_CRYPT=3Dy
>  CONFIG_DM_UEVENT=3Dy
>  CONFIG_DM_VERITY=3Dy
> diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
> index b26dbc4..f7a3ea3 100644
> --- a/kernel/power/hibernate.c
> +++ b/kernel/power/hibernate.c
> @@ -1156,7 +1156,7 @@ static int __init hibernate_setup(char *str)
>  	} else if (!strncmp(str, "no", 2)) {
>  		noresume =3D 1;
>  		nohibernate =3D 1;
> -	} else if (IS_ENABLED(CONFIG_DEBUG_RODATA)
> +	} else if (IS_ENABLED(CONFIG_HARDENED_PAGE_MAPPINGS)
>  		   && !strncmp(str, "protect_image", 13)) {
>  		enable_restore_image_protection();
>  	}
> diff --git a/kernel/power/power.h b/kernel/power/power.h
> index 1dfa0da..dc2c7b8 100644
> --- a/kernel/power/power.h
> +++ b/kernel/power/power.h
> @@ -61,12 +61,12 @@ extern int hibernation_snapshot(int platform_mode);
>  extern int hibernation_restore(int platform_mode);
>  extern int hibernation_platform_enter(void);
> =20
> -#ifdef CONFIG_DEBUG_RODATA
> +#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
>  /* kernel/power/snapshot.c */
>  extern void enable_restore_image_protection(void);
>  #else
>  static inline void enable_restore_image_protection(void) {}
> -#endif /* CONFIG_DEBUG_RODATA */
> +#endif /* CONFIG_HARDENED_PAGE_MAPPINGS */
> =20
>  #else /* !CONFIG_HIBERNATION */
> =20
> diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
> index 2d8e2b2..a7c793e 100644
> --- a/kernel/power/snapshot.c
> +++ b/kernel/power/snapshot.c
> @@ -38,7 +38,7 @@
> =20
>  #include "power.h"
> =20
> -#ifdef CONFIG_DEBUG_RODATA
> +#ifdef CONFIG_HARDENED_PAGE_MAPPINGS
>  static bool hibernate_restore_protection;
>  static bool hibernate_restore_protection_active;
> =20
> @@ -73,7 +73,7 @@ static inline void hibernate_restore_protection_begin(v=
oid) {}
>  static inline void hibernate_restore_protection_end(void) {}
>  static inline void hibernate_restore_protect_page(void *page_address) {}
>  static inline void hibernate_restore_unprotect_page(void *page_address) =
{}
> -#endif /* CONFIG_DEBUG_RODATA */
> +#endif /* CONFIG_HARDENED_PAGE_MAPPINGS */
> =20
>  static int swsusp_page_is_free(struct page *);
>  static void swsusp_set_page_forbidden(struct page *);
> diff --git a/security/Kconfig b/security/Kconfig
> index 118f454..ad6ce82 100644
> --- a/security/Kconfig
> +++ b/security/Kconfig
> @@ -158,6 +158,22 @@ config HARDENED_USERCOPY_PAGESPAN
>  	  been removed. This config is intended to be used only while
>  	  trying to find such users.
> =20
> +config ARCH_HAS_HARDENED_MAPPINGS
> +	def_bool n
> +
> +config HARDENED_PAGE_MAPPINGS
> +	bool "Mark kernel mappings with stricter permissions (RO/W^X)"
> +	default y
> +	depends on ARCH_HAS_HARDENED_MAPPINGS
> +	help
> +          If this is set, kernel text and rodata memory will be made rea=
d-only,
> +	  and non-text memory will be made non-executable. This provides
> +	  protection against certain security attacks (e.g. executing the heap
> +	  or modifying text).
> +
> +	  Unless your system has known restrictions or performance issues, it
> +	  is recommended to say Y here.
> +
>  source security/selinux/Kconfig
>  source security/smack/Kconfig
>  source security/tomoyo/Kconfig

--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

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Subject: [PATCH v1] tty: serial: 8250: 8250_gsc:- Handle return NULL error from ioremap_nocache
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Here, If ioremap_nocache will fail. It will return NULL.
Kernel can run into a NULL-pointer dereference.
This error check will avoid NULL pointer dereference.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/tty/serial/8250/8250_gsc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/8250/8250_gsc.c
index b1e6ae9..63306de 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -60,6 +60,10 @@ static int __init serial_init_chip(struct parisc_device *dev)
 					7272727 : 1843200;
 	uart.port.mapbase	= address;
 	uart.port.membase	= ioremap_nocache(address, 16);
+	if (!uart.port.membase) {
+		dev_warn(&dev->dev, "Failed to map memory\n");
+		return -ENOMEM;
+	}
 	uart.port.irq	= dev->irq;
 	uart.port.flags	= UPF_BOOT_AUTOCONF;
 	uart.port.dev	= &dev->dev;
-- 
1.9.1



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To: Laura Abbott <labbott@redhat.com>
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Hi Laura,

On Wed, Jan 18, 2017 at 05:29:05PM -0800, Laura Abbott wrote:
> 
> Despite the word 'debug' in CONFIG_DEBUG_RODATA, this kernel option
> provides key security features that are to be expected on a modern
> system. Change the name to CONFIG_HARDENED_PAGE_MAPPINGS which more
> accurately describes what this option is intended to do.

This generally sounds good. Thanks for attacking this!

On the bikeshedding front, *maybe* it would be nice to mention
permissions in the name, something like STRICT_KERNEL_RWX. That might
also prevent the reading of 'hardened' as 'optional overhead'.

That said, the proposed name is fine by me -- I'm happy so long as
'DEBUG' goes.

> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 1117421..06fed56 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -11,6 +11,7 @@ config ARM64
>  	select ARCH_HAS_ELF_RANDOMIZE
>  	select ARCH_HAS_GCOV_PROFILE_ALL
>  	select ARCH_HAS_GIGANTIC_PAGE
> +	select ARCH_HAS_HARDENED_MAPPINGS
>  	select ARCH_HAS_KCOV
>  	select ARCH_HAS_SG_CHAIN
>  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
> @@ -123,9 +124,6 @@ config ARCH_PHYS_ADDR_T_64BIT
>  config MMU
>  	def_bool y
>  
> -config DEBUG_RODATA
> -	def_bool y
> -

> diff --git a/security/Kconfig b/security/Kconfig
> index 118f454..ad6ce82 100644
> --- a/security/Kconfig
> +++ b/security/Kconfig
> @@ -158,6 +158,22 @@ config HARDENED_USERCOPY_PAGESPAN
>  	  been removed. This config is intended to be used only while
>  	  trying to find such users.
>  
> +config ARCH_HAS_HARDENED_MAPPINGS
> +	def_bool n
> +
> +config HARDENED_PAGE_MAPPINGS
> +	bool "Mark kernel mappings with stricter permissions (RO/W^X)"
> +	default y
> +	depends on ARCH_HAS_HARDENED_MAPPINGS
> +	help
> +          If this is set, kernel text and rodata memory will be made read-only,
> +	  and non-text memory will be made non-executable. This provides
> +	  protection against certain security attacks (e.g. executing the heap
> +	  or modifying text).
> +
> +	  Unless your system has known restrictions or performance issues, it
> +	  is recommended to say Y here.

It's somewhat unfortunate that this means the feature is no longer
mandatory on arm64 (and s390+x86). We have a boot-time switch to turn
the protections off, so I was hoping we could make this mandatory on all
architectures with support.

It would be good to see if we could make this mandatory for arm and
parisc, or if it really needs to be optional for either of those.

Thanks,
Mark.
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From - Thu Nov 08 21:39:33 2018
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Subject: Re: [PATCH 2/2] security: Change name of CONFIG_DEBUG_SET_MODULE_RONX
Date: Thu, 19 Jan 2017 11:11:18 +0000
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To: Laura Abbott <labbott@redhat.com>
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Hi,

On Wed, Jan 18, 2017 at 05:29:06PM -0800, Laura Abbott wrote:
> 
> Despite the word 'debug' in CONFIG_DEBUG_SET_MODULE_RONX, this kernel
> option provides key security features that are to be expected on a
> modern system. Change the name to CONFIG_HARDENED_MODULE_MAPPINGS which
> more accurately describes what this option is intended to do.

This looks good; my naming comments from the DEBUG_RODATA also apply
here -- the proposed name is fine.

> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 06fed56..2fe0e98 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -12,6 +12,7 @@ config ARM64
>  	select ARCH_HAS_GCOV_PROFILE_ALL
>  	select ARCH_HAS_GIGANTIC_PAGE
>  	select ARCH_HAS_HARDENED_MAPPINGS
> +	select ARCH_HAS_HARDENED_MODULE_MAPPINGS
>  	select ARCH_HAS_KCOV
>  	select ARCH_HAS_SG_CHAIN
>  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
> diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
> index a26d27f..1eebe1f 100644
> --- a/arch/arm64/Kconfig.debug
> +++ b/arch/arm64/Kconfig.debug
> @@ -71,17 +71,6 @@ config DEBUG_WX
>  
>  	  If in doubt, say "Y".
>  
> -config DEBUG_SET_MODULE_RONX
> -	bool "Set loadable kernel module data as NX and text as RO"
> -	depends on MODULES
> -	default y
> -	help
> -	  Is this is set, kernel module text and rodata will be made read-only.
> -	  This is to help catch accidental or malicious attempts to change the
> -	  kernel's executable code.
> -
> -	  If in doubt, say Y.
> -

> +config ARCH_HAS_HARDENED_MODULE_MAPPINGS
> +	def_bool n
> +
> +config HARDENED_MODULE_MAPPINGS
> +	bool "Mark module mappings with stricter permissions (RO/W^X)"
> +	default y
> +	depends on ARCH_HAS_HARDENED_MODULE_MAPPINGS
> +	help
> +	  If this is set, module text and rodata memory will be made read-only,
> +	  and non-text memory will be made non-executable. This provides
> +	  protection against certain security vulnerabilities (e.g. modifying
> +	  code)
> +
> +	  Unless your system has known restrictions or performance issues, it
> +	  is recommended to say Y here.
> +

I was hoping that we'd make this mandatory, as we'd already done for
DEBUG_RODATA.

Takahiro-san did a bit of work towards that in commit 39290b389ea2654f
("module: extend 'rodata=off' boot cmdline parameter to module
mappings").

It would be good to know if there's any reason we can't do that.

Otherwise, this looks fine.

Thanks,
Mark.


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Subject: Re: [PATCH 2/2] security: Change name of CONFIG_DEBUG_SET_MODULE_RONX
Date: Thu, 19 Jan 2017 12:34:06 +0100
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To: Mark Rutland <mark.rutland@arm.com>
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On Thu, Jan 19, 2017 at 11:11:18AM +0000, Mark Rutland wrote:
> > +config HARDENED_MODULE_MAPPINGS
> > +	bool "Mark module mappings with stricter permissions (RO/W^X)"
> > +	default y
> > +	depends on ARCH_HAS_HARDENED_MODULE_MAPPINGS
> > +	help
> > +	  If this is set, module text and rodata memory will be made read-only,
> > +	  and non-text memory will be made non-executable. This provides
> > +	  protection against certain security vulnerabilities (e.g. modifying
> > +	  code)
> > +
> > +	  Unless your system has known restrictions or performance issues, it
> > +	  is recommended to say Y here.
> > +
> 
> I was hoping that we'd make this mandatory, as we'd already done for
> DEBUG_RODATA.

Same for s390: would be good to make this mandatory.

From - Thu Nov 08 21:39:33 2018
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Subject: Re: [PATCH 2/2] security: Change name of CONFIG_DEBUG_SET_MODULE_RONX
Date: Thu, 19 Jan 2017 11:43:25 +0000
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To: Laura Abbott <labbott@redhat.com>
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Hi Laura,

On 19/01/17 01:29, Laura Abbott wrote:
> 
> Despite the word 'debug' in CONFIG_DEBUG_SET_MODULE_RONX, this kernel
> option provides key security features that are to be expected on a
> modern system. Change the name to CONFIG_HARDENED_MODULE_MAPPINGS which
> more accurately describes what this option is intended to do.
> 
> Signed-off-by: Laura Abbott <labbott@redhat.com>
> ---

[...]

> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 09aff28..ef852e4 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -8,6 +8,7 @@ config ARM
>  	select ARCH_HAVE_CUSTOM_GPIO_H
>  	select ARCH_HAS_GCOV_PROFILE_ALL
>  	select ARCH_HAS_HARDENED_MAPPINGS if MMU && !XIP_KERNEL
> +	select ARCH_HAS_HARDENED_MODULE_MAPPINGS if MMU
>  	select ARCH_MIGHT_HAVE_PC_PARPORT
>  	select ARCH_SUPPORTS_ATOMIC_RMW
>  	select ARCH_USE_BUILTIN_BSWAP
> diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> index d83f7c3..426d271 100644
> --- a/arch/arm/Kconfig.debug
> +++ b/arch/arm/Kconfig.debug
> @@ -1738,17 +1738,6 @@ config PID_IN_CONTEXTIDR
>  	  additional instructions during context switch. Say Y here only if you
>  	  are planning to use hardware trace tools with this kernel.
>  
> -config DEBUG_SET_MODULE_RONX
> -	bool "Set loadable kernel module data as NX and text as RO"
> -	depends on MODULES && MMU
> -	---help---
> -	  This option helps catch unintended modifications to loadable
> -	  kernel module's text and read-only data. It also prevents execution
> -	  of module data. Such protection may interfere with run-time code
> -	  patching and dynamic kernel tracing - and they might also protect
> -	  against certain classes of kernel exploits.
> -	  If in doubt, say "N".
> -
>  source "drivers/hwtracing/coresight/Kconfig"
>  
>  endmenu

[...]

> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -12,6 +12,7 @@ config ARM64
>  	select ARCH_HAS_GCOV_PROFILE_ALL
>  	select ARCH_HAS_GIGANTIC_PAGE
>  	select ARCH_HAS_HARDENED_MAPPINGS
> +	select ARCH_HAS_HARDENED_MODULE_MAPPINGS
>  	select ARCH_HAS_KCOV
>  	select ARCH_HAS_SG_CHAIN
>  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
> diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
> index a26d27f..1eebe1f 100644
> --- a/arch/arm64/Kconfig.debug
> +++ b/arch/arm64/Kconfig.debug
> @@ -71,17 +71,6 @@ config DEBUG_WX
>  
>  	  If in doubt, say "Y".
>  
> -config DEBUG_SET_MODULE_RONX
> -	bool "Set loadable kernel module data as NX and text as RO"
> -	depends on MODULES
> -	default y
> -	help
> -	  Is this is set, kernel module text and rodata will be made read-only.
> -	  This is to help catch accidental or malicious attempts to change the
> -	  kernel's executable code.
> -
> -	  If in doubt, say Y.
> -
>  config DEBUG_ALIGN_RODATA
>  	depends on ARCH_HAS_HARDENED_MAPPINGS
>  	bool "Align linker sections up to SECTION_SIZE"

[...]

> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -69,6 +69,7 @@ config S390
>  	select ARCH_HAS_GCOV_PROFILE_ALL
>  	select ARCH_HAS_GIGANTIC_PAGE
>  	select ARCH_HAS_HARDENED_MAPPINGS
> +	select ARCH_HAS_HARDENED_MODULE_MAPPINGS
>  	select ARCH_HAS_KCOV
>  	select ARCH_HAS_SG_CHAIN
>  	select ARCH_HAS_UBSAN_SANITIZE_ALL
> diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
> index 26c5d5be..57f8ea9 100644
> --- a/arch/s390/Kconfig.debug
> +++ b/arch/s390/Kconfig.debug
> @@ -17,7 +17,4 @@ config S390_PTDUMP
>  	  kernel.
>  	  If in doubt, say "N"
>  
> -config DEBUG_SET_MODULE_RONX
> -	def_bool y
> -	depends on MODULES
>  endmenu
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 9d80cd8..38ce850 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -51,6 +51,7 @@ config X86
>  	select ARCH_HAS_FAST_MULTIPLIER
>  	select ARCH_HAS_GCOV_PROFILE_ALL
>  	select ARCH_HAS_HARDENED_MAPPINGS
> +	select ARCH_HAS_HARDENED_MODULE_MAPPINGS
>  	select ARCH_HAS_KCOV			if X86_64
>  	select ARCH_HAS_MMIO_FLUSH
>  	select ARCH_HAS_PMEM_API		if X86_64
> diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
> index 67eec55..69cdd0b 100644
> --- a/arch/x86/Kconfig.debug
> +++ b/arch/x86/Kconfig.debug
> @@ -109,17 +109,6 @@ config DEBUG_WX
>  
>  	  If in doubt, say "Y".
>  
> -config DEBUG_SET_MODULE_RONX
> -	bool "Set loadable kernel module data as NX and text as RO"
> -	depends on MODULES
> -	---help---
> -	  This option helps catch unintended modifications to loadable
> -	  kernel module's text and read-only data. It also prevents execution
> -	  of module data. Such protection may interfere with run-time code
> -	  patching and dynamic kernel tracing - and they might also protect
> -	  against certain classes of kernel exploits.
> -	  If in doubt, say "N".
> -
>  config DEBUG_NX_TEST
>  	tristate "Testcase for the NX non-executable stack feature"
>  	depends on DEBUG_KERNEL && m

[...]

> --- a/security/Kconfig
> +++ b/security/Kconfig
> @@ -174,6 +174,22 @@ config HARDENED_PAGE_MAPPINGS
>  	  Unless your system has known restrictions or performance issues, it
>  	  is recommended to say Y here.
>  
> +config ARCH_HAS_HARDENED_MODULE_MAPPINGS
> +	def_bool n
> +
> +config HARDENED_MODULE_MAPPINGS
> +	bool "Mark module mappings with stricter permissions (RO/W^X)"
> +	default y
> +	depends on ARCH_HAS_HARDENED_MODULE_MAPPINGS

It would seem that this ends up losing the previous dependency on
MODULES - is that intentional?

Robin.

> +	help
> +	  If this is set, module text and rodata memory will be made read-only,
> +	  and non-text memory will be made non-executable. This provides
> +	  protection against certain security vulnerabilities (e.g. modifying
> +	  code)
> +
> +	  Unless your system has known restrictions or performance issues, it
> +	  is recommended to say Y here.
> +
>  source security/selinux/Kconfig
>  source security/smack/Kconfig
>  source security/tomoyo/Kconfig
> 



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Subject: Re: [PATCH 1/2] security: Change name of CONFIG_DEBUG_RODATA
Date: Thu, 19 Jan 2017 12:33:05 +0100
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To: Mark Rutland <mark.rutland@arm.com>
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On Thu, Jan 19, 2017 at 10:56:46AM +0000, Mark Rutland wrote:
> > +config HARDENED_PAGE_MAPPINGS
> > +	bool "Mark kernel mappings with stricter permissions (RO/W^X)"
> > +	default y
> > +	depends on ARCH_HAS_HARDENED_MAPPINGS
> > +	help
> > +          If this is set, kernel text and rodata memory will be made read-only,
> > +	  and non-text memory will be made non-executable. This provides
> > +	  protection against certain security attacks (e.g. executing the heap
> > +	  or modifying text).
> > +
> > +	  Unless your system has known restrictions or performance issues, it
> > +	  is recommended to say Y here.
> 
> It's somewhat unfortunate that this means the feature is no longer
> mandatory on arm64 (and s390+x86). We have a boot-time switch to turn
> the protections off, so I was hoping we could make this mandatory on all
> architectures with support.
> 
> It would be good to see if we could make this mandatory for arm and
> parisc, or if it really needs to be optional for either of those.

Looks like the config option is a no-op on parisc just like it is on
s390. Irrelavant of the config option at least on s390 the page tables for
kernel text and rodata will be read-only anyway.

This works since ages and I don't see a reason why this should be
changed. Also trying to disable this with the "rodata=" command line option
does not work at least on s390, and I guess this is true for parisc as
well.

The only thing implemented with CONFIG_DEBUG_RODATA on both architectures
is to emit a message that states memory has been protected
(mark_rodata_ro).
This just avoids a wrong "Kernel memory protection disabled." message.

So yes, I'd really like to keep this option mandatory.



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From: Andy Shevchenko <andy.shevchenko@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.kernel
Subject: Re: [PATCH v1] tty: serial: 8250: 8250_gsc:- Handle return NULL error
 from ioremap_nocache
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On Thu, Jan 19, 2017 at 10:00 AM, Arvind Yadav
<arvind.yadav.cs@gmail.com> wrote:
> Here, If ioremap_nocache will fail. It will return NULL.
> Kernel can run into a NULL-pointer dereference.
> This error check will avoid NULL pointer dereference.

>         uart.port.mapbase       = address;
>         uart.port.membase       = ioremap_nocache(address, 16);
> +       if (!uart.port.membase) {
> +               dev_warn(&dev->dev, "Failed to map memory\n");
> +               return -ENOMEM;
> +       }

You also may do something like

void __iomem *base;
...

base = ioremap_nocache(...);
if (!base)
 return -ENOMEM;
// I doubt the message is useful, up to you

memset(&uart, 0, sizeof(uart));
...
uart.port.membase       = base;

-- 
With Best Regards,
Andy Shevchenko
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Subject: Re: [PATCH 1/2] security: Change name of CONFIG_DEBUG_RODATA
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On 19.01.2017 12:33, Heiko Carstens wrote:
> On Thu, Jan 19, 2017 at 10:56:46AM +0000, Mark Rutland wrote:
>>> +config HARDENED_PAGE_MAPPINGS
>>> +	bool "Mark kernel mappings with stricter permissions (RO/W^X)"
>>> +	default y
>>> +	depends on ARCH_HAS_HARDENED_MAPPINGS
>>> +	help
>>> +          If this is set, kernel text and rodata memory will be made read-only,
>>> +	  and non-text memory will be made non-executable. This provides
>>> +	  protection against certain security attacks (e.g. executing the heap
>>> +	  or modifying text).
>>> +
>>> +	  Unless your system has known restrictions or performance issues, it
>>> +	  is recommended to say Y here.
>>
>> It's somewhat unfortunate that this means the feature is no longer
>> mandatory on arm64 (and s390+x86). We have a boot-time switch to turn
>> the protections off, so I was hoping we could make this mandatory on all
>> architectures with support.
>>
>> It would be good to see if we could make this mandatory for arm and
>> parisc, or if it really needs to be optional for either of those.
> 
> Looks like the config option is a no-op on parisc just like it is on
> s390. Irrelavant of the config option at least on s390 the page tables for
> kernel text and rodata will be read-only anyway.

Right, that's true at the moment for parisc as well.
I do have unfinished patches which will add runtime kernel patching
for ftrace to parisc, and those patches will need to add code to 
enable/disable ro text/data like x86.
 
> This works since ages and I don't see a reason why this should be
> changed. Also trying to disable this with the "rodata=" command line option
> does not work at least on s390, and I guess this is true for parisc as
> well.

I never tried the option itself, but it should work on parisc to disable
the ro protection by this option.
 
> The only thing implemented with CONFIG_DEBUG_RODATA on both architectures
> is to emit a message that states memory has been protected
> (mark_rodata_ro).
> This just avoids a wrong "Kernel memory protection disabled." message.
> 
> So yes, I'd really like to keep this option mandatory.
 
I'd be fine with a rename of the config option to ARCH_HAS_HARDENED_MAPPINGS
and keeping the "rodata=" command line.

Helge
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From - Thu Nov 08 21:39:33 2018
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Subject: Re: [PATCH 1/2] security: Change name of CONFIG_DEBUG_RODATA
Date: Thu, 19 Jan 2017 13:57:52 -0800
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	Russell King <linux@armlinux.org.uk>, Catalin Marinas <catalin.marinas@arm.com>, 
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	lin
To: Laura Abbott <labbott@redhat.com>
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On Wed, Jan 18, 2017 at 5:29 PM, Laura Abbott <labbott@redhat.com> wrote:
>
> Despite the word 'debug' in CONFIG_DEBUG_RODATA, this kernel option
> provides key security features that are to be expected on a modern
> system. Change the name to CONFIG_HARDENED_PAGE_MAPPINGS which more
> accurately describes what this option is intended to do.

Oh thank you. Yes, this is badly needed. I might prefer to see this as
two patches, though:

Move DEBUG_RODATA to top-level arch/Kconfig, (and add ARCH_HAS_[bikeshed]).
Rename DEBUG_RODATA to [bikeshed]

(We should do a similar renaming for DEBUG_SET_MODULE_RONX too.)

Another thing that might be even cleaner would be to entirely invert
the logic. Something like CONFIG_ARCH_MISSING_[bikeshed]?

> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 186c4c2..09aff28 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -7,6 +7,7 @@ config ARM
>         select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
>         select ARCH_HAVE_CUSTOM_GPIO_H
>         select ARCH_HAS_GCOV_PROFILE_ALL
> +       select ARCH_HAS_HARDENED_MAPPINGS if MMU && !XIP_KERNEL
>         select ARCH_MIGHT_HAVE_PC_PARPORT
>         select ARCH_SUPPORTS_ATOMIC_RMW
>         select ARCH_USE_BUILTIN_BSWAP
> diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
> index f68e8ec..e770dc9 100644
> --- a/arch/arm/mm/Kconfig
> +++ b/arch/arm/mm/Kconfig
> @@ -1051,21 +1051,9 @@ config ARCH_SUPPORTS_BIG_ENDIAN
>           This option specifies the architecture can support big endian
>           operation.
>
> -config DEBUG_RODATA
> -       bool "Make kernel text and rodata read-only"
> -       depends on MMU && !XIP_KERNEL
> -       default y if CPU_V7

These changes aren't correctly representing the ARM state. I think the
ARCH_HAS is correct, but I'm not sure the best way to include the
"default y if CPU_V7".

> --- a/security/Kconfig
> +++ b/security/Kconfig
> @@ -158,6 +158,22 @@ config HARDENED_USERCOPY_PAGESPAN
>           been removed. This config is intended to be used only while
>           trying to find such users.
>
> +config ARCH_HAS_HARDENED_MAPPINGS
> +       def_bool n
> +
> +config HARDENED_PAGE_MAPPINGS
> +       bool "Mark kernel mappings with stricter permissions (RO/W^X)"
> +       default y
> +       depends on ARCH_HAS_HARDENED_MAPPINGS
> +       help
> +          If this is set, kernel text and rodata memory will be made read-only,
> +         and non-text memory will be made non-executable. This provides
> +         protection against certain security attacks (e.g. executing the heap
> +         or modifying text).
> +
> +         Unless your system has known restrictions or performance issues, it
> +         is recommended to say Y here.
> +
>  source security/selinux/Kconfig
>  source security/smack/Kconfig
>  source security/tomoyo/Kconfig

Should this go in arch/Kconfig or security/Kconfig? I'm starting to
think we need a top-level kernel security Kconfig (the gcc plugins are
starting to pile up in arch/Kconfig, for example). I think since this
is arch specific, maybe arch/Kconfig? (Arguably, HARDENED_USERCOPY
shouldn't be in security/Kconfig either, since security/Kconfig is
mostly LSM or userspace-facing stuff? I dunno.)

As for the bikeshed on the naming, I like "KERNEL_RWX", and it likely
doesn't need "STRICT", IMO. CONFIG_KERNEL_RWX ? I don't have a strong
opinion beyond removing "DEBUG" from the name. :)

-Kees

-- 
Kees Cook
Nexus Security


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Subject: Re: [PATCH 1/2] security: Change name of CONFIG_DEBUG_RODATA
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To: Mark Rutland <mark.rutland@arm.com>,
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On Thu, Jan 19, 2017 at 2:56 AM, Mark Rutland <mark.rutland@arm.com> wrote:
> Hi Laura,
>
> On Wed, Jan 18, 2017 at 05:29:05PM -0800, Laura Abbott wrote:
>> diff --git a/security/Kconfig b/security/Kconfig
>> index 118f454..ad6ce82 100644
>> --- a/security/Kconfig
>> +++ b/security/Kconfig
>> @@ -158,6 +158,22 @@ config HARDENED_USERCOPY_PAGESPAN
>>         been removed. This config is intended to be used only while
>>         trying to find such users.
>>
>> +config ARCH_HAS_HARDENED_MAPPINGS
>> +     def_bool n
>> +
>> +config HARDENED_PAGE_MAPPINGS
>> +     bool "Mark kernel mappings with stricter permissions (RO/W^X)"
>> +     default y
>> +     depends on ARCH_HAS_HARDENED_MAPPINGS
>> +     help
>> +          If this is set, kernel text and rodata memory will be made read-only,
>> +       and non-text memory will be made non-executable. This provides
>> +       protection against certain security attacks (e.g. executing the heap
>> +       or modifying text).
>> +
>> +       Unless your system has known restrictions or performance issues, it
>> +       is recommended to say Y here.
>
> It's somewhat unfortunate that this means the feature is no longer
> mandatory on arm64 (and s390+x86). We have a boot-time switch to turn
> the protections off, so I was hoping we could make this mandatory on all
> architectures with support.

Oh, I totally missed this. Yes, we need it to stay mandatory. It
should be possible by just adding "select HARDENED_PAGE_MAPPINGS" to
the arch Kconfig, yes?

> It would be good to see if we could make this mandatory for arm and
> parisc, or if it really needs to be optional for either of those.

(Adding mpe to CC...) Michael, what's needed to get this working on powerpc too?

-Kees

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Subject: Re: [RFC][PATCH 0/2] Better hardening names
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Cc: Jason Wessel <jason.wessel@windriver.com>,
        Jonathan Corbet <corbet@lwn.net>,
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To: Laura Abbott <labbott@redhat.com>
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On Wed, Jan 18, 2017 at 5:29 PM, Laura Abbott <labbott@redhat.com> wrote:
> Hi,
>
> It's come up previously that CONFIG_DEBUG_SET_MODULE_RONX and
> CONFIG_DEBUG_RODATA are not accurate names, mostly they should not have the
> word 'debug' in them. This series attempts to change the names to something
> a bit more descriptive and indicative of what they are actually used for these
> days.
>
> I marked this RFC for
> - Bike shedding purposes.
> - A discussion of what defaults should be. The way I did the refactoring, both
>   options are default y. I'd appreciate comments if there is a better approach.
> - Approach to split this up into more sub patches to make review/merging easier?
>   Or maybe it's fine.
>
> Quickly tested on arm/arm64/x86.
>
> Thanks,
> Laura
>
> Laura Abbott (2):
>   security: Change name of CONFIG_DEBUG_RODATA
>   security: Change name of CONFIG_DEBUG_SET_MODULE_RONX

Some day I'll quit reading my email backwards. :) I see you've got
MODULE_RONX renamed too here, please ignore my comment about needing
it "too". :)

-Kees

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Subject: Re: [PATCH 2/2] security: Change name of CONFIG_DEBUG_SET_MODULE_RONX
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--2oS5YaxWCcQjTEyO
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Hi Laura,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.10-rc4]
[cannot apply to next-20170119]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Laura-Abbott/Better-hardening-names/20170119-200343
config: i386-randconfig-c0-01201130 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   arch/x86/built-in.o: In function `ftrace_arch_code_modify_prepare':
>> (.text+0x3fcb7): undefined reference to `set_all_modules_text_rw'
   arch/x86/built-in.o: In function `ftrace_arch_code_modify_post_process':
>> (.text+0x3fcc3): undefined reference to `set_all_modules_text_ro'

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From - Thu Nov 08 21:39:33 2018
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From: Joyes Dadi <"YD."@biscuit.ocn.ne.jp>
Newsgroups: gmane.linux.ports.parisc
Subject: Urgent Please,,
Date: Mon, 23 Jan 2017 23:07:49 +0900 (JST)
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Good Day Dear,

My name is Ms. Joyes Dadi, I am glad you are reading this letter and I hope
we will start our communication and I know that this message will look strange,
surprising and probably unbelievable to you, but it is the reality. I want to
make a donation of money to you.

I contact you by the will of God. I am a firm German woman specialized in
mining gold and diamonds in Africa. But now, I'm very sick of a cancer. My
husband died in an accident two years ago with our two children and now I have
cancer of the esophagus that damaged almost all the cells in my system/agencies
and I'll die soon according to my doctor.

My most concern now is, we grew up in the orphanage and were married in
orphanage. If I die this deposited fund will soon be left alone in the hand of
the bank, and I do want to it that  way. Please, if you can be reliable and
sincere to accept my humble proposal; I have (10.5Millions Euro) in a fixed
deposit account; I will order the Bank to transfer the money into your account
in your country immediately, and then you will take the fund to  your country
and invest it to the orphanage homes Please, answer as quickly as possible.

God bless you.
Ms. Joyes Dadi
Email: joyesdadi767@citromail.hu
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From - Thu Nov 08 21:39:34 2018
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Subject: Re: [PATCH 1/2] security: Change name of CONFIG_DEBUG_RODATA
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On 01/19/2017 08:53 AM, Pavel Machek wrote:
> On Wed 2017-01-18 17:29:05, Laura Abbott wrote:
>>
>> Despite the word 'debug' in CONFIG_DEBUG_RODATA, this kernel option
>> provides key security features that are to be expected on a modern
>> system. Change the name to CONFIG_HARDENED_PAGE_MAPPINGS which more
>> accurately describes what this option is intended to do.
>
> I think this is bad change. CONFIG_DEBUG_RODATA is describing what it
> does, CONFIG_HARDENED_PAGE_MAPPINGS is advertising.
>
> We don't do advertising, and we don't force people to re-answer the
> config questions without good reason.
>
> CONFIG_HARDENED_RODATA might fix the first problem, but not the second
> one.
>
> 								Pavel
> 								

(Apologies, my SMTP was set up incorrectly so my response didn't
actually get sent out)

CONFIG_DEBUG_RODATA isn't describing what it does though. It misses
that this config may handle much more than just rodata. I think
Mark Rutland's suggestion of STRICT_KERNEL_RWX might be more
descriptive.

Thanks,
Laura


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Subject: Re: [PATCH 1/2] security: Change name of CONFIG_DEBUG_RODATA
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On 01/19/2017 11:56 AM, Mark Rutland wrote:
> Hi Laura,
>
> On Wed, Jan 18, 2017 at 05:29:05PM -0800, Laura Abbott wrote:
>>
>> Despite the word 'debug' in CONFIG_DEBUG_RODATA, this kernel option
>> provides key security features that are to be expected on a modern
>> system. Change the name to CONFIG_HARDENED_PAGE_MAPPINGS which more
>> accurately describes what this option is intended to do.
>
> This generally sounds good. Thanks for attacking this!
>
> On the bikeshedding front, *maybe* it would be nice to mention
> permissions in the name, something like STRICT_KERNEL_RWX. That might
> also prevent the reading of 'hardened' as 'optional overhead'.
>
> That said, the proposed name is fine by me -- I'm happy so long as
> 'DEBUG' goes.
>

(Apologies for the delay, my SMTP was set up incorrectly so my
messages didn't actually get sent out)

I like that better since it's describing specifically what the config
should be setting as opposed to something more vague. That might fit
better with what Pavel was suggesting as well.

Thanks,
Laura


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Subject: Re: [PATCH 1/2] security: Change name of CONFIG_DEBUG_RODATA
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On 01/19/2017 12:33 PM, Heiko Carstens wrote:
> On Thu, Jan 19, 2017 at 10:56:46AM +0000, Mark Rutland wrote:
>>> +config HARDENED_PAGE_MAPPINGS
>>> +	bool "Mark kernel mappings with stricter permissions (RO/W^X)"
>>> +	default y
>>> +	depends on ARCH_HAS_HARDENED_MAPPINGS
>>> +	help
>>> +          If this is set, kernel text and rodata memory will be made read-only,
>>> +	  and non-text memory will be made non-executable. This provides
>>> +	  protection against certain security attacks (e.g. executing the heap
>>> +	  or modifying text).
>>> +
>>> +	  Unless your system has known restrictions or performance issues, it
>>> +	  is recommended to say Y here.
>>
>> It's somewhat unfortunate that this means the feature is no longer
>> mandatory on arm64 (and s390+x86). We have a boot-time switch to turn
>> the protections off, so I was hoping we could make this mandatory on all
>> architectures with support.
>>
>> It would be good to see if we could make this mandatory for arm and
>> parisc, or if it really needs to be optional for either of those.
>
> Looks like the config option is a no-op on parisc just like it is on
> s390. Irrelavant of the config option at least on s390 the page tables for
> kernel text and rodata will be read-only anyway.
>
> This works since ages and I don't see a reason why this should be
> changed. Also trying to disable this with the "rodata=" command line option
> does not work at least on s390, and I guess this is true for parisc as
> well.
>
> The only thing implemented with CONFIG_DEBUG_RODATA on both architectures
> is to emit a message that states memory has been protected
> (mark_rodata_ro).
> This just avoids a wrong "Kernel memory protection disabled." message.
>
> So yes, I'd really like to keep this option mandatory.
>

(Apologies, my SMTP server was set up incorrectly so this didn't get
sent out when I thought it did)

Okay, that's useful to know. I think I'm going to add a
'select HARDENED_MAPPINGS' (or whatever it gets changed to) to arches
that were previously def_bool. This is a slight Kconfig semantic change
but as has been pointed out we now have the command line option.

Thanks,
Laura



From - Thu Nov 08 21:39:34 2018
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Subject: Re: [PATCH 2/2] security: Change name of CONFIG_DEBUG_SET_MODULE_RONX
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To: Robin Murphy <robin.murphy@arm.com>
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On 01/19/2017 12:43 PM, Robin Murphy wrote:
> Hi Laura,
>
> On 19/01/17 01:29, Laura Abbott wrote:
>>
>> Despite the word 'debug' in CONFIG_DEBUG_SET_MODULE_RONX, this kernel
>> option provides key security features that are to be expected on a
>> modern system. Change the name to CONFIG_HARDENED_MODULE_MAPPINGS which
>> more accurately describes what this option is intended to do.
>>
>> Signed-off-by: Laura Abbott <labbott@redhat.com>
>> ---
>
> [...]
>
>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>> index 09aff28..ef852e4 100644
>> --- a/arch/arm/Kconfig
>> +++ b/arch/arm/Kconfig
>> @@ -8,6 +8,7 @@ config ARM
>>  	select ARCH_HAVE_CUSTOM_GPIO_H
>>  	select ARCH_HAS_GCOV_PROFILE_ALL
>>  	select ARCH_HAS_HARDENED_MAPPINGS if MMU && !XIP_KERNEL
>> +	select ARCH_HAS_HARDENED_MODULE_MAPPINGS if MMU
>>  	select ARCH_MIGHT_HAVE_PC_PARPORT
>>  	select ARCH_SUPPORTS_ATOMIC_RMW
>>  	select ARCH_USE_BUILTIN_BSWAP
>> diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
>> index d83f7c3..426d271 100644
>> --- a/arch/arm/Kconfig.debug
>> +++ b/arch/arm/Kconfig.debug
>> @@ -1738,17 +1738,6 @@ config PID_IN_CONTEXTIDR
>>  	  additional instructions during context switch. Say Y here only if you
>>  	  are planning to use hardware trace tools with this kernel.
>>
>> -config DEBUG_SET_MODULE_RONX
>> -	bool "Set loadable kernel module data as NX and text as RO"
>> -	depends on MODULES && MMU
>> -	---help---
>> -	  This option helps catch unintended modifications to loadable
>> -	  kernel module's text and read-only data. It also prevents execution
>> -	  of module data. Such protection may interfere with run-time code
>> -	  patching and dynamic kernel tracing - and they might also protect
>> -	  against certain classes of kernel exploits.
>> -	  If in doubt, say "N".
>> -
>>  source "drivers/hwtracing/coresight/Kconfig"
>>
>>  endmenu
>
> [...]
>
>> --- a/arch/arm64/Kconfig
>> +++ b/arch/arm64/Kconfig
>> @@ -12,6 +12,7 @@ config ARM64
>>  	select ARCH_HAS_GCOV_PROFILE_ALL
>>  	select ARCH_HAS_GIGANTIC_PAGE
>>  	select ARCH_HAS_HARDENED_MAPPINGS
>> +	select ARCH_HAS_HARDENED_MODULE_MAPPINGS
>>  	select ARCH_HAS_KCOV
>>  	select ARCH_HAS_SG_CHAIN
>>  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
>> diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
>> index a26d27f..1eebe1f 100644
>> --- a/arch/arm64/Kconfig.debug
>> +++ b/arch/arm64/Kconfig.debug
>> @@ -71,17 +71,6 @@ config DEBUG_WX
>>
>>  	  If in doubt, say "Y".
>>
>> -config DEBUG_SET_MODULE_RONX
>> -	bool "Set loadable kernel module data as NX and text as RO"
>> -	depends on MODULES
>> -	default y
>> -	help
>> -	  Is this is set, kernel module text and rodata will be made read-only.
>> -	  This is to help catch accidental or malicious attempts to change the
>> -	  kernel's executable code.
>> -
>> -	  If in doubt, say Y.
>> -
>>  config DEBUG_ALIGN_RODATA
>>  	depends on ARCH_HAS_HARDENED_MAPPINGS
>>  	bool "Align linker sections up to SECTION_SIZE"
>
> [...]
>
>> --- a/arch/s390/Kconfig
>> +++ b/arch/s390/Kconfig
>> @@ -69,6 +69,7 @@ config S390
>>  	select ARCH_HAS_GCOV_PROFILE_ALL
>>  	select ARCH_HAS_GIGANTIC_PAGE
>>  	select ARCH_HAS_HARDENED_MAPPINGS
>> +	select ARCH_HAS_HARDENED_MODULE_MAPPINGS
>>  	select ARCH_HAS_KCOV
>>  	select ARCH_HAS_SG_CHAIN
>>  	select ARCH_HAS_UBSAN_SANITIZE_ALL
>> diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
>> index 26c5d5be..57f8ea9 100644
>> --- a/arch/s390/Kconfig.debug
>> +++ b/arch/s390/Kconfig.debug
>> @@ -17,7 +17,4 @@ config S390_PTDUMP
>>  	  kernel.
>>  	  If in doubt, say "N"
>>
>> -config DEBUG_SET_MODULE_RONX
>> -	def_bool y
>> -	depends on MODULES
>>  endmenu
>> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
>> index 9d80cd8..38ce850 100644
>> --- a/arch/x86/Kconfig
>> +++ b/arch/x86/Kconfig
>> @@ -51,6 +51,7 @@ config X86
>>  	select ARCH_HAS_FAST_MULTIPLIER
>>  	select ARCH_HAS_GCOV_PROFILE_ALL
>>  	select ARCH_HAS_HARDENED_MAPPINGS
>> +	select ARCH_HAS_HARDENED_MODULE_MAPPINGS
>>  	select ARCH_HAS_KCOV			if X86_64
>>  	select ARCH_HAS_MMIO_FLUSH
>>  	select ARCH_HAS_PMEM_API		if X86_64
>> diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
>> index 67eec55..69cdd0b 100644
>> --- a/arch/x86/Kconfig.debug
>> +++ b/arch/x86/Kconfig.debug
>> @@ -109,17 +109,6 @@ config DEBUG_WX
>>
>>  	  If in doubt, say "Y".
>>
>> -config DEBUG_SET_MODULE_RONX
>> -	bool "Set loadable kernel module data as NX and text as RO"
>> -	depends on MODULES
>> -	---help---
>> -	  This option helps catch unintended modifications to loadable
>> -	  kernel module's text and read-only data. It also prevents execution
>> -	  of module data. Such protection may interfere with run-time code
>> -	  patching and dynamic kernel tracing - and they might also protect
>> -	  against certain classes of kernel exploits.
>> -	  If in doubt, say "N".
>> -
>>  config DEBUG_NX_TEST
>>  	tristate "Testcase for the NX non-executable stack feature"
>>  	depends on DEBUG_KERNEL && m
>
> [...]
>
>> --- a/security/Kconfig
>> +++ b/security/Kconfig
>> @@ -174,6 +174,22 @@ config HARDENED_PAGE_MAPPINGS
>>  	  Unless your system has known restrictions or performance issues, it
>>  	  is recommended to say Y here.
>>
>> +config ARCH_HAS_HARDENED_MODULE_MAPPINGS
>> +	def_bool n
>> +
>> +config HARDENED_MODULE_MAPPINGS
>> +	bool "Mark module mappings with stricter permissions (RO/W^X)"
>> +	default y
>> +	depends on ARCH_HAS_HARDENED_MODULE_MAPPINGS
>
> It would seem that this ends up losing the previous dependency on
> MODULES - is that intentional?
>
> Robin.
>

(Apologies, my SMTP was set up incorrectly so this didn't actually
get sent out when I thought it did)

No, good catch. I missed re-adding that when doing the refactoring.

Thanks,
Laura

>>
>



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On Wed 2017-01-25 12:21:05, Laura Abbott wrote:
> On 01/19/2017 08:53 AM, Pavel Machek wrote:
> >On Wed 2017-01-18 17:29:05, Laura Abbott wrote:
> >>
> >>Despite the word 'debug' in CONFIG_DEBUG_RODATA, this kernel option
> >>provides key security features that are to be expected on a modern
> >>system. Change the name to CONFIG_HARDENED_PAGE_MAPPINGS which more
> >>accurately describes what this option is intended to do.
> >
> >I think this is bad change. CONFIG_DEBUG_RODATA is describing what it
> >does, CONFIG_HARDENED_PAGE_MAPPINGS is advertising.
> >
> >We don't do advertising, and we don't force people to re-answer the
> >config questions without good reason.
> >
> >CONFIG_HARDENED_RODATA might fix the first problem, but not the second
> >one.
> >
> >								Pavel
> >							=09
>=20
> (Apologies, my SMTP was set up incorrectly so my response didn't
> actually get sent out)
>=20
> CONFIG_DEBUG_RODATA isn't describing what it does though. It misses
> that this config may handle much more than just rodata. I think
> Mark Rutland's suggestion of STRICT_KERNEL_RWX might be more
> descriptive.

CONFIG_BUG=3Dy
CONFIG_LBDAF=3Dy
CONFIG_PM_OPP=3Dy

=2E.it is config option. It is not description of the feature. People
are living with that config option for a while. I'd keep it.

Maybe you can go from CONFIG_DEBUG_RODATA to CONFIG_RODATA... (but
you'll still have people re-answer config option.)


								Pavel
--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

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Subject: [PATCH] prctl: implement PR_GET_ENDIAN for all architectures
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The prctl(PR_GET_ENDIAN) syscall was added to Kernel 2.6.18, but
implemented for PowerPC only.
This trivial patch adds support for this syscall for all other architectures.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/kernel/sys.c b/kernel/sys.c
index 842914e..5818e5e 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -79,9 +79,6 @@
 #ifndef GET_FPEXC_CTL
 # define GET_FPEXC_CTL(a, b)	(-EINVAL)
 #endif
-#ifndef GET_ENDIAN
-# define GET_ENDIAN(a, b)	(-EINVAL)
-#endif
 #ifndef SET_ENDIAN
 # define SET_ENDIAN(a, b)	(-EINVAL)
 #endif
@@ -2136,7 +2133,13 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
 			return -EFAULT;
 		break;
 	case PR_GET_ENDIAN:
+#ifdef GET_ENDIAN
 		error = GET_ENDIAN(me, arg2);
+#elif defined(__BIG_ENDIAN)
+		error = put_user(PR_ENDIAN_BIG, (unsigned int __user *)arg2);
+#else
+		error = put_user(PR_ENDIAN_LITTLE, (unsigned int __user *)arg2);
+#endif
 		break;
 	case PR_SET_ENDIAN:
 		error = SET_ENDIAN(me, arg2);
--
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In swab.h the "#if BITS_PER_LONG > 32" breaks compiling userspace programs if
BITS_PER_LONG is #defined by userspace with the sizeof() compiler builtin.

Solve this problem by using __BITS_PER_LONG instead.  Since we now
#include asm/bitsperlong.h avoid further potential userspace pollution
by moving the #define of SHIFT_PER_LONG to bitops.h which is not
exported to userspace.

This patch unbreaks compiling qemu on hppa/parisc.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org>

diff --git a/arch/parisc/include/asm/bitops.h b/arch/parisc/include/asm/bitops.h
index 3f9406d..da87943 100644
--- a/arch/parisc/include/asm/bitops.h
+++ b/arch/parisc/include/asm/bitops.h
@@ -6,7 +6,7 @@
 #endif
 
 #include <linux/compiler.h>
-#include <asm/types.h>		/* for BITS_PER_LONG/SHIFT_PER_LONG */
+#include <asm/types.h>
 #include <asm/byteorder.h>
 #include <asm/barrier.h>
 #include <linux/atomic.h>
@@ -17,6 +17,12 @@
  * to include/asm-i386/bitops.h or kerneldoc
  */
 
+#if __BITS_PER_LONG == 64
+#define SHIFT_PER_LONG 6
+#else
+#define SHIFT_PER_LONG 5
+#endif
+
 #define CHOP_SHIFTCOUNT(x) (((unsigned long) (x)) & (BITS_PER_LONG - 1))
 
 
diff --git a/arch/parisc/include/uapi/asm/bitsperlong.h b/arch/parisc/include/uapi/asm/bitsperlong.h
index e0a23c7..07fa7e5 100644
--- a/arch/parisc/include/uapi/asm/bitsperlong.h
+++ b/arch/parisc/include/uapi/asm/bitsperlong.h
@@ -3,10 +3,8 @@
 
 #if defined(__LP64__)
 #define __BITS_PER_LONG 64
-#define SHIFT_PER_LONG 6
 #else
 #define __BITS_PER_LONG 32
-#define SHIFT_PER_LONG 5
 #endif
 
 #include <asm-generic/bitsperlong.h>
diff --git a/arch/parisc/include/uapi/asm/swab.h b/arch/parisc/include/uapi/asm/swab.h
index e78403b..928e1bb 100644
--- a/arch/parisc/include/uapi/asm/swab.h
+++ b/arch/parisc/include/uapi/asm/swab.h
@@ -1,6 +1,7 @@
 #ifndef _PARISC_SWAB_H
 #define _PARISC_SWAB_H
 
+#include <asm/bitsperlong.h>
 #include <linux/types.h>
 #include <linux/compiler.h>
 
@@ -38,7 +39,7 @@ static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
 }
 #define __arch_swab32 __arch_swab32
 
-#if BITS_PER_LONG > 32
+#if __BITS_PER_LONG > 32
 /*
 ** From "PA-RISC 2.0 Architecture", HP Professional Books.
 ** See Appendix I page 8 , "Endian Byte Swapping".
@@ -61,6 +62,6 @@ static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
 	return x;
 }
 #define __arch_swab64 __arch_swab64
-#endif /* BITS_PER_LONG > 32 */
+#endif /* __BITS_PER_LONG > 32 */
 
 #endif /* _PARISC_SWAB_H */
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Define access_ok() as macro
Date: Sun, 29 Jan 2017 18:19:33 +0100
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Define access_ok() as macro instead of static function. This fixes build
warnings in code where the second parameter is given as unsigned long.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 9a2aee1..fb4382c 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -32,11 +32,7 @@
  * that put_user is the same as __put_user, etc.
  */
 
-static inline long access_ok(int type, const void __user * addr,
-		unsigned long size)
-{
-	return 1;
-}
+#define access_ok(type, uaddr, size) (1)
 
 #define put_user __put_user
 #define get_user __get_user
--
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc architecture fixes for v4.10-rc6
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Hi Linus,

please pull two fixes for the parisc architecture for kernel 4.10-rc6 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.10-3

One fix to avoid usage of BITS_PER_LONG in user-space exported swab.h header
which breaks compiling qemu, and one trivial fix for printk continuation in the
parisc parport driver.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (2):
      parisc, parport_gsc: Fixes for printk continuation lines
      parisc: Don't use BITS_PER_LONG in userspace-exported swab.h header

 arch/parisc/include/asm/bitops.h           | 8 +++++++-
 arch/parisc/include/uapi/asm/bitsperlong.h | 2 --
 arch/parisc/include/uapi/asm/swab.h        | 5 +++--
 drivers/parport/parport_gsc.c              | 8 ++++----
 4 files changed, 14 insertions(+), 9 deletions(-)


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Hi,

On Wednesday, January 18, 2017 03:51:51 PM Arvind Yadav wrote:
> Here, If ioremap_nocache will fail. It will return NULL.
> Kernel can run into a NULL-pointer dereference.
> This error check will avoid NULL pointer dereference.
> 
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>

Thanks, I queued your patch with some minor changes for 4.11
(you can see the final version of the patch below).

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics


From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Subject: [PATCH v1] video: fbdev: stifb: handle NULL return value from ioremap_nocache

Add missing error check for ioremap_nocache() failure
(prevents NULL pointer dereference on error).

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
[b.zolnierkie: minor fixes]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
 drivers/video/fbdev/stifb.c |    4 ++++
 1 file changed, 4 insertions(+)

Index: b/drivers/video/fbdev/stifb.c
===================================================================
--- a/drivers/video/fbdev/stifb.c	2017-01-30 16:55:15.766435453 +0100
+++ b/drivers/video/fbdev/stifb.c	2017-01-30 16:55:15.750435453 +0100
@@ -1294,6 +1294,10 @@ static int __init stifb_init_fb(struct s
 	strcpy(fix->id, "stifb");
 	info->fbops = &stifb_ops;
 	info->screen_base = ioremap_nocache(REGION_BASE(fb,1), fix->smem_len);
+	if (!info->screen_base) {
+		printk(KERN_ERR "stifb: failed to map memory\n");
+		goto out_err0;
+	}
 	info->screen_size = fix->smem_len;
 	info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA;
 	info->pseudo_palette = &fb->pseudo_palette;

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From - Thu Nov 08 21:39:34 2018
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Subject: Re: [PATCH] prctl: implement PR_GET_ENDIAN for all architectures
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On Sat, 28 Jan 2017 12:13:10 +0100 Helge Deller <deller@gmx.de> wrote:

> The prctl(PR_GET_ENDIAN) syscall was added to Kernel 2.6.18, but
> implemented for PowerPC only.
> This trivial patch adds support for this syscall for all other architectures.

Seems reasonable.  I guess.  Why is this needed?

The man page will need updating.  It says "PowerPC only".

> 
> diff --git a/kernel/sys.c b/kernel/sys.c
> index 842914e..5818e5e 100644
> --- a/kernel/sys.c
> +++ b/kernel/sys.c
> @@ -79,9 +79,6 @@
>  #ifndef GET_FPEXC_CTL
>  # define GET_FPEXC_CTL(a, b)	(-EINVAL)
>  #endif
> -#ifndef GET_ENDIAN
> -# define GET_ENDIAN(a, b)	(-EINVAL)
> -#endif
>  #ifndef SET_ENDIAN
>  # define SET_ENDIAN(a, b)	(-EINVAL)
>  #endif
> @@ -2136,7 +2133,13 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
>  			return -EFAULT;
>  		break;
>  	case PR_GET_ENDIAN:
> +#ifdef GET_ENDIAN
>  		error = GET_ENDIAN(me, arg2);
> +#elif defined(__BIG_ENDIAN)
> +		error = put_user(PR_ENDIAN_BIG, (unsigned int __user *)arg2);
> +#else
> +		error = put_user(PR_ENDIAN_LITTLE, (unsigned int __user *)arg2);
> +#endif
>  		break;
>  	case PR_SET_ENDIAN:
>  		error = SET_ENDIAN(me, arg2);
--
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Sehr geehrte Damen und Herren,

Ich brauche Ihre Unterstützung in Ihrem Land zu verlagern und zu investieren.Ich bitte Sie um Hilfe, weil ich nicht das Wissen über
Geschäft und die Regeln, die Ihr Land für eine sichere Investition führen.

Werden Sie versprechen, mit mir aufrichtig zu sein?

Bitte kontaktieren Sie mich für weitere Details!

Mit freundlichen Grüßen,
Fräulein Marbell.
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Hi

I had some crashes on parisc with the kernel 4.10 and I tracked them to 
the patch 18d98a79382cbe5a7569788d5b7b18e7015506f2 "parisc: Enable KASLR".

The crashes can be reproduced by compiling kernel in a loop - a crash 
happens in a few hours. I have a C8000 workstation with two dual-core 
PA8900 CPUs.

The kernel 4.9 is stable, 4.9 with the patch 18d98a79 isn't.

Mikulas
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Hi Andrew,

On 01.02.2017 01:26, Andrew Morton wrote:
> On Sat, 28 Jan 2017 12:13:10 +0100 Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org> wrote:
> 
>> The prctl(PR_GET_ENDIAN) syscall was added to Kernel 2.6.18, but
>> implemented for PowerPC only.
>> This trivial patch adds support for this syscall for all other architectures.
> 
> Seems reasonable.  I guess.

Heck, I did forgot but I submitted a similar patch 8 years ago:
http://www.serverphorums.com/read.php?12,51902

> Why is this needed?

It's not actually needed beside the trivial reason of providing an interface
not just for one single architecture.

After reading the discussion from 2009 again, I'm fine if 
you would simply drop the patch. The decision up to you.

> The man page will need updating.  It says "PowerPC only".

In case you would include the patch I'd send patches to update
the manpage.

Thanks,
Helge

>> diff --git a/kernel/sys.c b/kernel/sys.c
>> index 842914e..5818e5e 100644
>> --- a/kernel/sys.c
>> +++ b/kernel/sys.c
>> @@ -79,9 +79,6 @@
>>  #ifndef GET_FPEXC_CTL
>>  # define GET_FPEXC_CTL(a, b)	(-EINVAL)
>>  #endif
>> -#ifndef GET_ENDIAN
>> -# define GET_ENDIAN(a, b)	(-EINVAL)
>> -#endif
>>  #ifndef SET_ENDIAN
>>  # define SET_ENDIAN(a, b)	(-EINVAL)
>>  #endif
>> @@ -2136,7 +2133,13 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
>>  			return -EFAULT;
>>  		break;
>>  	case PR_GET_ENDIAN:
>> +#ifdef GET_ENDIAN
>>  		error = GET_ENDIAN(me, arg2);
>> +#elif defined(__BIG_ENDIAN)
>> +		error = put_user(PR_ENDIAN_BIG, (unsigned int __user *)arg2);
>> +#else
>> +		error = put_user(PR_ENDIAN_LITTLE, (unsigned int __user *)arg2);
>> +#endif
>>  		break;
>>  	case PR_SET_ENDIAN:
>>  		error = SET_ENDIAN(me, arg2);


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Subject: Re: crashes in 4.10 because of "parisc: Enable KASLR"
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Hi Mikulas,

On 01.02.2017 18:37, Mikulas Patocka wrote:
> I had some crashes on parisc with the kernel 4.10 and I tracked them to 
> the patch 18d98a79382cbe5a7569788d5b7b18e7015506f2 "parisc: Enable KASLR".

If the patch is really guilty, then it's probably best to revert it
before 4.10 gets released, but...

> The crashes can be reproduced by compiling kernel in a loop - a crash 
> happens in a few hours. I have a C8000 workstation with two dual-core 
> PA8900 CPUs.
> 
> The kernel 4.9 is stable, 4.9 with the patch 18d98a79 isn't.

I'm not 100% convinced that 4.9 is fully stable and that the patch
is the reason for the crashes you see.
What kind of crashes do you see? Userspace or kernel ?
I know we still face random userspace crashes which happen with plain kernel 4.9/stable too.
Dave is still trying various patches to resolve those crashes.

Helge
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On Wed, 1 Feb 2017, Helge Deller wrote:

> Hi Mikulas,
> 
> On 01.02.2017 18:37, Mikulas Patocka wrote:
> > I had some crashes on parisc with the kernel 4.10 and I tracked them to 
> > the patch 18d98a79382cbe5a7569788d5b7b18e7015506f2 "parisc: Enable KASLR".
> 
> If the patch is really guilty, then it's probably best to revert it
> before 4.10 gets released, but...
> 
> > The crashes can be reproduced by compiling kernel in a loop - a crash 
> > happens in a few hours. I have a C8000 workstation with two dual-core 
> > PA8900 CPUs.
> > 
> > The kernel 4.9 is stable, 4.9 with the patch 18d98a79 isn't.
> 
> I'm not 100% convinced that 4.9 is fully stable and that the patch
> is the reason for the crashes you see.
> What kind of crashes do you see? Userspace or kernel ?

Userspace crashes. Random crashes or internal errors in gcc when compiling 
the kernel. I once had "aptitude" crash.

> I know we still face random userspace crashes which happen with plain kernel 4.9/stable too.
> Dave is still trying various patches to resolve those crashes.

Is 4.8 stable for you?

> Helge

Mikulas
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On Wed, 1 Feb 2017 20:47:06 +0100 Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org> wrote:

> Hi Andrew,
> 
> On 01.02.2017 01:26, Andrew Morton wrote:
> > On Sat, 28 Jan 2017 12:13:10 +0100 Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org> wrote:
> > 
> >> The prctl(PR_GET_ENDIAN) syscall was added to Kernel 2.6.18, but
> >> implemented for PowerPC only.
> >> This trivial patch adds support for this syscall for all other architectures.
> > 
> > Seems reasonable.  I guess.
> 
> Heck, I did forgot but I submitted a similar patch 8 years ago:
> http://www.serverphorums.com/read.php?12,51902
> 
> > Why is this needed?
> 
> It's not actually needed beside the trivial reason of providing an interface
> not just for one single architecture.
> 
> After reading the discussion from 2009 again, I'm fine if 
> you would simply drop the patch. The decision up to you.

Can't decide.  I guess that moving it into the kernel will, over time,
eliminate some irritating ifdefs from userspace code.

The implementation itself is a bit half-assed.  The put_user() in
arch/powerpc/kernel/process.c:get_endian() should be moved into
kernel/sys.c.  So the arch code only does the "what endianness am I"
function and common code copies that out to userspace.



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Subject: Re: crashes in 4.10 because of "parisc: Enable KASLR"
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To: Mikulas Patocka <mpatocka@redhat.com>, Helge Deller <deller@gmx.de>
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On 2017-02-01 3:10 PM, Mikulas Patocka wrote:
>> I'm not 100% convinced that 4.9 is fully stable and that the patch
>> is the reason for the crashes you see.
>> What kind of crashes do you see? Userspace or kernel ?
> Userspace crashes. Random crashes or internal errors in gcc when compiling
> the kernel. I once had "aptitude" crash.
The userspace crashes are present in 4.8 and 4.9 as well.  For example, 
this build failed due to an OS problem:
https://buildd.debian.org/status/fetch.php?pkg=kdenlive&arch=hppa&ver=16.12.1-2&stamp=1485956026&raw=0

Probably, 10% or more large packages fail to build because of this. Note 
that this only occurs on machines
(e.g., c8000) that only support equivalent aliases.  We don't see this 
on the parisc buildd which has two PA8600 CPUs.

My current theory is the following functions are buggy:

/* vmap range flushes and invalidates.  Architecturally, we don't need
  * the invalidate, because the CPU should refuse to speculate once an
  * area has been flushed, so invalidate is left empty */
static inline void flush_kernel_vmap_range(void *vaddr, int size)
{
         unsigned long start = (unsigned long)vaddr;

         flush_kernel_dcache_range_asm(start, start + size);
}
static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
{
         unsigned long start = (unsigned long)vaddr;
         void *cursor = vaddr;

         for ( ; cursor < vaddr + size; cursor += PAGE_SIZE) {
                 struct page *page = vmalloc_to_page(cursor);

                 if (test_and_clear_bit(PG_dcache_dirty, &page->flags))
                         flush_kernel_dcache_page(page);
         }
         flush_kernel_dcache_range_asm(start, start + size);
}

The kernel sets up a vmap range for I/O and we have non equivalent 
aliases to the offset map
pages.  I know the PG_dcache_dirty is never set when these routines are 
called, so the for loop
does nothing.  Nuking the whole data cache appears to fix the 
application errors but my test
was cut short by a second problem.  No one else seems to do anything 
with offset map, so
we might have a parisc specific driver problem.

We also have a down_read/up_read problem where applications stall 
forever and are not killable
(D state in top).  Some seemed related to signal processing but they 
have occurred in other
situations as well.  They seem more prevalent.  For example, I can't 
remember this happening
with 3.18 branch.  This problem seems to be triggered by application 
tests involving multiple
threads (glibc, gcc go and libgomp, and mariadb).

Dave

-- 
John David Anglin  dave.anglin@bell.net

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Hi,

On Wed, Feb 01, 2017 at 08:54:57PM +0100, Helge Deller wrote:
> I know we still face random userspace crashes which happen with plain kernel 4.9/stable too.
> Dave is still trying various patches to resolve those crashes.

FWIW, I was able to run full GCC 6 bootstrap (> 20 hours) on C3700/PA8700
without any issues using plain 4.9 kernel.

A.
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On Tue, 2017-01-31 at 16:26 -0800, Andrew Morton wrote:
> On Sat, 28 Jan 2017 12:13:10 +0100 Helge Deller <deller@gmx.de>
> wrote:
> 
> > The prctl(PR_GET_ENDIAN) syscall was added to Kernel 2.6.18, but
> > implemented for PowerPC only. This trivial patch adds support for 
> > this syscall for all other architectures.
> 
> Seems reasonable.  I guess.  Why is this needed?

I don't think it is other than for PPC.  If you're not variable endian
(which is only PPC to date), then you should know a priori what endian
you are from the #defines in userspace.

James

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Given that the arch does not add its own implementations, simply
use the asm-generic/current.h (generic-y) header instead of
duplicating code.

Cc: jejb@parisc-linux.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
---
 arch/parisc/include/asm/Kbuild    |  1 +
 arch/parisc/include/asm/current.h | 15 ---------------
 2 files changed, 1 insertion(+), 15 deletions(-)
 delete mode 100644 arch/parisc/include/asm/current.h

diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 91f53c07f410..a07448dc2b29 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -3,6 +3,7 @@ generic-y += auxvec.h
 generic-y += barrier.h
 generic-y += clkdev.h
 generic-y += cputime.h
+generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += emergency-restart.h
diff --git a/arch/parisc/include/asm/current.h b/arch/parisc/include/asm/current.h
deleted file mode 100644
index 0fb9338e3bf2..000000000000
--- a/arch/parisc/include/asm/current.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef _PARISC_CURRENT_H
-#define _PARISC_CURRENT_H
-
-#include <linux/thread_info.h>
-
-struct task_struct;
-
-static inline struct task_struct * get_current(void)
-{
-	return current_thread_info()->task;
-}
- 
-#define current get_current()
-
-#endif /* !(_PARISC_CURRENT_H) */
-- 
2.6.6



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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: crashes in 4.10 because of "parisc: Enable KASLR"
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To: Aaro Koskinen <aaro.koskinen@iki.fi>
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On 2017-02-01, at 5:29 PM, Aaro Koskinen wrote:

> On Wed, Feb 01, 2017 at 08:54:57PM +0100, Helge Deller wrote:
>> I know we still face random userspace crashes which happen with plain kernel 4.9/stable too.
>> Dave is still trying various patches to resolve those crashes.
> 
> FWIW, I was able to run full GCC 6 bootstrap (> 20 hours) on C3700/PA8700
> without any issues using plain 4.9 kernel.

As noted in my previous message, the problem appears to only occur on machines that only support
equivalent aliases (PA8800/PA8900).  The C3700 doesn't have the large L2 cache.

Dave
--
John David Anglin	dave.anglin@bell.net



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On Wed, Feb 1, 2017 at 3:12 PM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Tue, 2017-01-31 at 16:26 -0800, Andrew Morton wrote:
>> On Sat, 28 Jan 2017 12:13:10 +0100 Helge Deller <deller@gmx.de>
>> wrote:
>>
>> > The prctl(PR_GET_ENDIAN) syscall was added to Kernel 2.6.18, but
>> > implemented for PowerPC only. This trivial patch adds support for
>> > this syscall for all other architectures.
>>
>> Seems reasonable.  I guess.  Why is this needed?
>
> I don't think it is other than for PPC.  If you're not variable endian
> (which is only PPC to date), then you should know a priori what endian
> you are from the #defines in userspace.

I find it vaguely odd even on PPC.  Surely you can tell what your
endianness is directly.  (An API to query the endianness of another
task would be useful, though.)
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From: Arvind Yadav <arvind.yadav.cs@gmail.com>
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Subject: [PATCH] parisc: ccio-dma: Handle return NULL error from ioremap_nocache
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Here, If ioremap_nocache will fail. It will return NULL.
Kernel can run into a NULL-pointer dereference.
This error check will avoid NULL pointer dereference.

If kzalloc will fail return -ENOMEM instead of '1'.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/parisc/ccio-dma.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 553ef8a..b0558e2 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1539,7 +1539,7 @@ static int __init ccio_probe(struct parisc_device *dev)
 	ioc = kzalloc(sizeof(struct ioc), GFP_KERNEL);
 	if (ioc == NULL) {
 		printk(KERN_ERR MODULE_NAME ": memory allocation failure\n");
-		return 1;
+		return -ENOMEM;
 	}
 
 	ioc->name = dev->id.hversion == U2_IOA_RUNWAY ? "U2" : "UTurn";
@@ -1554,6 +1554,10 @@ static int __init ccio_probe(struct parisc_device *dev)
 
 	ioc->hw_path = dev->hw_path;
 	ioc->ioc_regs = ioremap_nocache(dev->hpa.start, 4096);
+	if (!ioc->ioc_regs) {
+		kfree(ioc);
+		return -ENOMEM;
+	}
 	ccio_ioc_init(ioc);
 	ccio_init_resources(ioc);
 	hppa_dma_ops = &ccio_ops;
-- 
1.9.1



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Xref: news.gmane.org gmane.linux.power-management.general:86132 gmane.linux.documentation:44687 gmane.linux.kernel:2402990 gmane.linux.ports.arm.kernel:556830 gmane.linux.ports.parisc:27248 gmane.linux.kernel.hardened.devel:5427
Archived-At: <http://permalink.gmane.org/gmane.linux.power-management.general/86132>

Hi,

This is a follow up to my proposal to rename/refactor CONFIG_DEBUG_RODATA
and CONFIG_DEBUG_SET_MODULE_RONX. Among other objections, there shouldn't
be 'debug' in the name since these provide necessary kernel protection.

v2 takes a slightly different approach to this per feedback. Patch #1 moves
CONFIG_DEBUG_RODATA and CONFIG_DEBUG_SET_MODULE_RONX to a common arch config.
These configs are def_bool y for every arch except !CPU_V7 for arm
CONFIG_DEBUG_RODATA. I think this also mitigates another concern about changing
the name since these are basically internal configs at this point and not end
user selectable. Patch #2 does the rename to something more descriptive.
Hopefully this should separate discussion more clearly into two parts (refactor
and rename)

Thanks,
Laura


Laura Abbott (2):
  arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be common
  arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX

 Documentation/DocBook/kgdb.tmpl            |  8 ++++----
 Documentation/security/self-protection.txt |  4 ++--
 arch/Kconfig                               | 28 ++++++++++++++++++++++++++++
 arch/arm/Kconfig                           |  3 +++
 arch/arm/Kconfig.debug                     | 11 -----------
 arch/arm/configs/aspeed_g4_defconfig       |  3 +--
 arch/arm/configs/aspeed_g5_defconfig       |  3 +--
 arch/arm/include/asm/cacheflush.h          |  2 +-
 arch/arm/kernel/patch.c                    |  4 ++--
 arch/arm/kernel/vmlinux.lds.S              |  8 ++++----
 arch/arm/mm/Kconfig                        | 14 +-------------
 arch/arm/mm/init.c                         |  4 ++--
 arch/arm64/Kconfig                         |  5 ++---
 arch/arm64/Kconfig.debug                   | 13 +------------
 arch/arm64/kernel/insn.c                   |  2 +-
 arch/parisc/Kconfig                        |  1 +
 arch/parisc/Kconfig.debug                  | 11 -----------
 arch/parisc/configs/712_defconfig          |  1 -
 arch/parisc/configs/c3000_defconfig        |  1 -
 arch/parisc/mm/init.c                      |  2 +-
 arch/s390/Kconfig                          |  5 ++---
 arch/s390/Kconfig.debug                    |  3 ---
 arch/x86/Kconfig                           |  5 ++---
 arch/x86/Kconfig.debug                     | 11 -----------
 include/linux/filter.h                     |  4 ++--
 include/linux/init.h                       |  4 ++--
 include/linux/module.h                     |  2 +-
 init/main.c                                |  4 ++--
 kernel/configs/android-recommended.config  |  2 +-
 kernel/module.c                            |  6 +++---
 kernel/power/hibernate.c                   |  2 +-
 kernel/power/power.h                       |  4 ++--
 kernel/power/snapshot.c                    |  4 ++--
 33 files changed, 75 insertions(+), 109 deletions(-)

-- 
2.7.4

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From - Thu Nov 08 21:39:35 2018
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From: Laura Abbott <labbott@redhat.com>
Newsgroups: gmane.linux.kernel.hardened.devel,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.power-management.general
Subject: [PATCHv2 1/2] arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be common
Date: Fri,  3 Feb 2017 09:52:21 -0800
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Approved: news@gmane.org
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Cc: Laura Abbott <labbott@redhat.com>,
	Jason Wessel <jason.wessel@windriver.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Russell King <linux@armlinux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org,
	Rob Herring <robh@kernel.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Len Brown <len.brown@intel.com>,
	Pavel Machek <pavel@ucw.cz>,
	Mark Rutland <mark.rutland@arm.com>,
	Jessica Yu <jeyu@redhat.com>,
	linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-parisc@vger.kernel.org,
	linux-s390@vger.kernel.org,
	li
To: Kees Cook <keescook@chromium.org>
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Xref: news.gmane.org gmane.linux.kernel.hardened.devel:5428 gmane.linux.documentation:44688 gmane.linux.kernel:2402991 gmane.linux.ports.arm.kernel:556831 gmane.linux.ports.parisc:27249 gmane.linux.power-management.general:86133
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.hardened.devel/5428>

There are multiple architectures that support CONFIG_DEBUG_RODATA and
CONFIG_SET_MODULE_RONX. These options also now have the ability to be
turned off at runtime. Move these to an architecture independent
location and make these options def_bool y for almost all of those
arches.

Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v2: This patch is now doing just the refactor of the existing config options.
---
 arch/Kconfig              | 28 ++++++++++++++++++++++++++++
 arch/arm/Kconfig          |  3 +++
 arch/arm/Kconfig.debug    | 11 -----------
 arch/arm/mm/Kconfig       | 12 ------------
 arch/arm64/Kconfig        |  5 ++---
 arch/arm64/Kconfig.debug  | 11 -----------
 arch/parisc/Kconfig       |  1 +
 arch/parisc/Kconfig.debug | 11 -----------
 arch/s390/Kconfig         |  5 ++---
 arch/s390/Kconfig.debug   |  3 ---
 arch/x86/Kconfig          |  5 ++---
 arch/x86/Kconfig.debug    | 11 -----------
 12 files changed, 38 insertions(+), 68 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 99839c2..22ee01e 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -781,4 +781,32 @@ config VMAP_STACK
 	  the stack to map directly to the KASAN shadow map using a formula
 	  that is incorrect if the stack is in vmalloc space.
 
+config ARCH_NO_STRICT_RWX_DEFAULTS
+	def_bool n
+
+config ARCH_HAS_STRICT_KERNEL_RWX
+	def_bool n
+
+config DEBUG_RODATA
+	def_bool y if !ARCH_NO_STRICT_RWX_DEFAULTS
+	prompt "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS
+	depends on ARCH_HAS_STRICT_KERNEL_RWX
+	help
+	  If this is set, kernel text and rodata memory will be made read-only,
+	  and non-text memory will be made non-executable. This provides
+	  protection against certain security exploits (e.g. executing the heap
+	  or modifying text)
+
+config ARCH_HAS_STRICT_MODULE_RWX
+	def_bool n
+
+config DEBUG_SET_MODULE_RONX
+	def_bool y if !ARCH_NO_STRICT_RWX_DEFAULTS
+	prompt "Set loadable kenrel module data as NX and text as RO" if ARCH_NO_STRICT_RWX_DEFAULTS
+	depends on ARCH_HAS_STRICT_MODULE_RWX && MODULES
+	help
+	  If this is set, module text and rodata memory will be made read-only,
+	  and non-text memory will be made non-executable. This provides
+	  protection against certain security exploits (e.g. writing to text)
+
 source "kernel/gcov/Kconfig"
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 186c4c2..aa73ca8 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -4,10 +4,13 @@ config ARM
 	select ARCH_CLOCKSOURCE_DATA
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
+	select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
+	select ARCH_HAS_STRICT_MODULE_RWX if MMU
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_HAVE_CUSTOM_GPIO_H
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_MIGHT_HAVE_PC_PARPORT
+	select ARCH_NO_STRICT_RWX_DEFAULTS if !CPU_V7
 	select ARCH_SUPPORTS_ATOMIC_RMW
 	select ARCH_USE_BUILTIN_BSWAP
 	select ARCH_USE_CMPXCHG_LOCKREF
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index d83f7c3..426d271 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -1738,17 +1738,6 @@ config PID_IN_CONTEXTIDR
 	  additional instructions during context switch. Say Y here only if you
 	  are planning to use hardware trace tools with this kernel.
 
-config DEBUG_SET_MODULE_RONX
-	bool "Set loadable kernel module data as NX and text as RO"
-	depends on MODULES && MMU
-	---help---
-	  This option helps catch unintended modifications to loadable
-	  kernel module's text and read-only data. It also prevents execution
-	  of module data. Such protection may interfere with run-time code
-	  patching and dynamic kernel tracing - and they might also protect
-	  against certain classes of kernel exploits.
-	  If in doubt, say "N".
-
 source "drivers/hwtracing/coresight/Kconfig"
 
 endmenu
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index f68e8ec..419a035 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -1051,18 +1051,6 @@ config ARCH_SUPPORTS_BIG_ENDIAN
 	  This option specifies the architecture can support big endian
 	  operation.
 
-config DEBUG_RODATA
-	bool "Make kernel text and rodata read-only"
-	depends on MMU && !XIP_KERNEL
-	default y if CPU_V7
-	help
-	  If this is set, kernel text and rodata memory will be made
-	  read-only, and non-text kernel memory will be made non-executable.
-	  The tradeoff is that each region is padded to section-size (1MiB)
-	  boundaries (because their permissions are different and splitting
-	  the 1M pages into 4K ones causes TLB performance problems), which
-	  can waste memory.
-
 config DEBUG_ALIGN_RODATA
 	bool "Make rodata strictly non-executable"
 	depends on DEBUG_RODATA
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 1117421..e1efbcc 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -13,6 +13,8 @@ config ARM64
 	select ARCH_HAS_GIGANTIC_PAGE
 	select ARCH_HAS_KCOV
 	select ARCH_HAS_SG_CHAIN
+	select ARCH_HAS_STRICT_KERNEL_RWX
+	select ARCH_HAS_STRICT_MODULE_RWX
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_USE_CMPXCHG_LOCKREF
 	select ARCH_SUPPORTS_ATOMIC_RMW
@@ -123,9 +125,6 @@ config ARCH_PHYS_ADDR_T_64BIT
 config MMU
 	def_bool y
 
-config DEBUG_RODATA
-	def_bool y
-
 config ARM64_PAGE_SHIFT
 	int
 	default 16 if ARM64_64K_PAGES
diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
index d1ebd46..939815e 100644
--- a/arch/arm64/Kconfig.debug
+++ b/arch/arm64/Kconfig.debug
@@ -71,17 +71,6 @@ config DEBUG_WX
 
 	  If in doubt, say "Y".
 
-config DEBUG_SET_MODULE_RONX
-	bool "Set loadable kernel module data as NX and text as RO"
-	depends on MODULES
-	default y
-	help
-	  Is this is set, kernel module text and rodata will be made read-only.
-	  This is to help catch accidental or malicious attempts to change the
-	  kernel's executable code.
-
-	  If in doubt, say Y.
-
 config DEBUG_ALIGN_RODATA
 	depends on DEBUG_RODATA
 	bool "Align linker sections up to SECTION_SIZE"
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 3a71f38..ad294b3 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -8,6 +8,7 @@ config PARISC
 	select HAVE_SYSCALL_TRACEPOINTS
 	select ARCH_WANT_FRAME_POINTERS
 	select ARCH_HAS_ELF_RANDOMIZE
+	select ARCH_HAS_STRICT_KERNEL_RWX
 	select RTC_CLASS
 	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 68b7cbd..0d856b9 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -5,15 +5,4 @@ source "lib/Kconfig.debug"
 config TRACE_IRQFLAGS_SUPPORT
 	def_bool y
 
-config DEBUG_RODATA
-       bool "Write protect kernel read-only data structures"
-       depends on DEBUG_KERNEL
-       default y
-       help
-         Mark the kernel read-only data as write-protected in the pagetables,
-         in order to catch accidental (and incorrect) writes to such const
-         data. This option may have a slight performance impact because a
-         portion of the kernel code won't be covered by a TLB anymore.
-         If in doubt, say "N".
-
 endmenu
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c6722112..53bb0e3 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -62,9 +62,6 @@ config PCI_QUIRKS
 config ARCH_SUPPORTS_UPROBES
 	def_bool y
 
-config DEBUG_RODATA
-	def_bool y
-
 config S390
 	def_bool y
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
@@ -73,6 +70,8 @@ config S390
 	select ARCH_HAS_GIGANTIC_PAGE
 	select ARCH_HAS_KCOV
 	select ARCH_HAS_SG_CHAIN
+	select ARCH_HAS_STRICT_KERNEL_RWX
+	select ARCH_HAS_STRICT_MODULE_RWX
 	select ARCH_HAS_UBSAN_SANITIZE_ALL
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_INLINE_READ_LOCK
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index 26c5d5be..57f8ea9 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -17,7 +17,4 @@ config S390_PTDUMP
 	  kernel.
 	  If in doubt, say "N"
 
-config DEBUG_SET_MODULE_RONX
-	def_bool y
-	depends on MODULES
 endmenu
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e487493..13e1bf4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -54,6 +54,8 @@ config X86
 	select ARCH_HAS_MMIO_FLUSH
 	select ARCH_HAS_PMEM_API		if X86_64
 	select ARCH_HAS_SG_CHAIN
+	select ARCH_HAS_STRICT_KERNEL_RWX
+	select ARCH_HAS_STRICT_MODULE_RWX
 	select ARCH_HAS_UBSAN_SANITIZE_ALL
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_MIGHT_HAVE_ACPI_PDC		if ACPI
@@ -309,9 +311,6 @@ config ARCH_SUPPORTS_UPROBES
 config FIX_EARLYCON_MEM
 	def_bool y
 
-config DEBUG_RODATA
-	def_bool y
-
 config PGTABLE_LEVELS
 	int
 	default 4 if X86_64
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 67eec55..69cdd0b 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -109,17 +109,6 @@ config DEBUG_WX
 
 	  If in doubt, say "Y".
 
-config DEBUG_SET_MODULE_RONX
-	bool "Set loadable kernel module data as NX and text as RO"
-	depends on MODULES
-	---help---
-	  This option helps catch unintended modifications to loadable
-	  kernel module's text and read-only data. It also prevents execution
-	  of module data. Such protection may interfere with run-time code
-	  patching and dynamic kernel tracing - and they might also protect
-	  against certain classes of kernel exploits.
-	  If in doubt, say "N".
-
 config DEBUG_NX_TEST
 	tristate "Testcase for the NX non-executable stack feature"
 	depends on DEBUG_KERNEL && m
-- 
2.7.4



From - Thu Nov 08 21:39:35 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Laura Abbott <labbott@redhat.com>
Newsgroups: gmane.linux.kernel,gmane.linux.documentation,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.kernel.hardened.devel
Subject: [PATCHv2 2/2] arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX
Date: Fri,  3 Feb 2017 09:52:22 -0800
Lines: 490
Approved: news@gmane.org
Message-ID: <1486144343-24998-3-git-send-email-labbott@redhat.com>
References: <1486144343-24998-1-git-send-email-labbott@redhat.com>
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Cc: Laura Abbott <labbott@redhat.com>,
        Jason Wessel <jason.wessel@windriver.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
        Rob Herring <robh@kernel.org>,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Len Brown <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>,
        Mark Rutland <mark.rutland@arm.com>,
        Jessica Yu <jeyu@redhat.com>, linux-doc@vger.kernel.org,
        linux-ker
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Both of these options are poorly named. The features they provide are
necessary for system security and should not be considered debug only.
Change the name to something that accurately describes what these
options do.

Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v2: This patch is now doing the renaming of CONFIG_DEBUG_RODATA and
CONFIG_DEBUG_MODULE_RONX
---
 Documentation/DocBook/kgdb.tmpl            | 8 ++++----
 Documentation/security/self-protection.txt | 4 ++--
 arch/Kconfig                               | 4 ++--
 arch/arm/configs/aspeed_g4_defconfig       | 3 +--
 arch/arm/configs/aspeed_g5_defconfig       | 3 +--
 arch/arm/include/asm/cacheflush.h          | 2 +-
 arch/arm/kernel/patch.c                    | 4 ++--
 arch/arm/kernel/vmlinux.lds.S              | 8 ++++----
 arch/arm/mm/Kconfig                        | 2 +-
 arch/arm/mm/init.c                         | 4 ++--
 arch/arm64/Kconfig.debug                   | 2 +-
 arch/arm64/kernel/insn.c                   | 2 +-
 arch/parisc/configs/712_defconfig          | 1 -
 arch/parisc/configs/c3000_defconfig        | 1 -
 arch/parisc/mm/init.c                      | 2 +-
 include/linux/filter.h                     | 4 ++--
 include/linux/init.h                       | 4 ++--
 include/linux/module.h                     | 2 +-
 init/main.c                                | 4 ++--
 kernel/configs/android-recommended.config  | 2 +-
 kernel/module.c                            | 6 +++---
 kernel/power/hibernate.c                   | 2 +-
 kernel/power/power.h                       | 4 ++--
 kernel/power/snapshot.c                    | 4 ++--
 24 files changed, 39 insertions(+), 43 deletions(-)

diff --git a/Documentation/DocBook/kgdb.tmpl b/Documentation/DocBook/kgdb.tmpl
index f3abca7..856ac20 100644
--- a/Documentation/DocBook/kgdb.tmpl
+++ b/Documentation/DocBook/kgdb.tmpl
@@ -115,12 +115,12 @@
     </para>
     <para>
     If the architecture that you are using supports the kernel option
-    CONFIG_DEBUG_RODATA, you should consider turning it off.  This
+    CONFIG_STRICT_KERNEL_RWX, you should consider turning it off.  This
     option will prevent the use of software breakpoints because it
     marks certain regions of the kernel's memory space as read-only.
     If kgdb supports it for the architecture you are using, you can
     use hardware breakpoints if you desire to run with the
-    CONFIG_DEBUG_RODATA option turned on, else you need to turn off
+    CONFIG_STRICT_KERNEL_RWX option turned on, else you need to turn off
     this option.
     </para>
     <para>
@@ -135,7 +135,7 @@
     <para>Here is an example set of .config symbols to enable or
     disable for kgdb:
     <itemizedlist>
-    <listitem><para># CONFIG_DEBUG_RODATA is not set</para></listitem>
+    <listitem><para># CONFIG_STRICT_KERNEL_RWX is not set</para></listitem>
     <listitem><para>CONFIG_FRAME_POINTER=y</para></listitem>
     <listitem><para>CONFIG_KGDB=y</para></listitem>
     <listitem><para>CONFIG_KGDB_SERIAL_CONSOLE=y</para></listitem>
@@ -166,7 +166,7 @@
     </para>
     <para>Here is an example set of .config symbols to enable/disable kdb:
     <itemizedlist>
-    <listitem><para># CONFIG_DEBUG_RODATA is not set</para></listitem>
+    <listitem><para># CONFIG_STRICT_KERNEL_RWX is not set</para></listitem>
     <listitem><para>CONFIG_FRAME_POINTER=y</para></listitem>
     <listitem><para>CONFIG_KGDB=y</para></listitem>
     <listitem><para>CONFIG_KGDB_SERIAL_CONSOLE=y</para></listitem>
diff --git a/Documentation/security/self-protection.txt b/Documentation/security/self-protection.txt
index 3010576..dd2a3b1 100644
--- a/Documentation/security/self-protection.txt
+++ b/Documentation/security/self-protection.txt
@@ -51,8 +51,8 @@ kernel, they are implemented in a way where the memory is temporarily
 made writable during the update, and then returned to the original
 permissions.)
 
-In support of this are (the poorly named) CONFIG_DEBUG_RODATA and
-CONFIG_DEBUG_SET_MODULE_RONX, which seek to make sure that code is not
+In support of this are CONFIG_STRICT_KERNEL_RWX and
+CONFIG_STRICT_MODULE_RWX, which seek to make sure that code is not
 writable, data is not executable, and read-only data is neither writable
 nor executable.
 
diff --git a/arch/Kconfig b/arch/Kconfig
index 22ee01e..406f6cd 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -787,7 +787,7 @@ config ARCH_NO_STRICT_RWX_DEFAULTS
 config ARCH_HAS_STRICT_KERNEL_RWX
 	def_bool n
 
-config DEBUG_RODATA
+config STRICT_KERNEL_RWX
 	def_bool y if !ARCH_NO_STRICT_RWX_DEFAULTS
 	prompt "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS
 	depends on ARCH_HAS_STRICT_KERNEL_RWX
@@ -800,7 +800,7 @@ config DEBUG_RODATA
 config ARCH_HAS_STRICT_MODULE_RWX
 	def_bool n
 
-config DEBUG_SET_MODULE_RONX
+config STRICT_MODULE_RWX
 	def_bool y if !ARCH_NO_STRICT_RWX_DEFAULTS
 	prompt "Set loadable kenrel module data as NX and text as RO" if ARCH_NO_STRICT_RWX_DEFAULTS
 	depends on ARCH_HAS_STRICT_MODULE_RWX && MODULES
diff --git a/arch/arm/configs/aspeed_g4_defconfig b/arch/arm/configs/aspeed_g4_defconfig
index ca39c04..beea2cc 100644
--- a/arch/arm/configs/aspeed_g4_defconfig
+++ b/arch/arm/configs/aspeed_g4_defconfig
@@ -25,7 +25,6 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_ARCH_MULTI_V7 is not set
 CONFIG_ARCH_ASPEED=y
 CONFIG_MACH_ASPEED_G4=y
-CONFIG_DEBUG_RODATA=y
 CONFIG_AEABI=y
 CONFIG_UACCESS_WITH_MEMCPY=y
 CONFIG_SECCOMP=y
@@ -79,7 +78,7 @@ CONFIG_DEBUG_LL_UART_8250=y
 CONFIG_DEBUG_UART_PHYS=0x1e784000
 CONFIG_DEBUG_UART_VIRT=0xe8784000
 CONFIG_EARLY_PRINTK=y
-CONFIG_DEBUG_SET_MODULE_RONX=y
+CONFIG_STRICT_MODULE_RWX=y
 # CONFIG_XZ_DEC_X86 is not set
 # CONFIG_XZ_DEC_POWERPC is not set
 # CONFIG_XZ_DEC_IA64 is not set
diff --git a/arch/arm/configs/aspeed_g5_defconfig b/arch/arm/configs/aspeed_g5_defconfig
index 4f366b0..0e245e5 100644
--- a/arch/arm/configs/aspeed_g5_defconfig
+++ b/arch/arm/configs/aspeed_g5_defconfig
@@ -26,7 +26,6 @@ CONFIG_ARCH_MULTI_V6=y
 # CONFIG_ARCH_MULTI_V7 is not set
 CONFIG_ARCH_ASPEED=y
 CONFIG_MACH_ASPEED_G5=y
-CONFIG_DEBUG_RODATA=y
 CONFIG_AEABI=y
 CONFIG_UACCESS_WITH_MEMCPY=y
 CONFIG_SECCOMP=y
@@ -81,7 +80,7 @@ CONFIG_DEBUG_LL_UART_8250=y
 CONFIG_DEBUG_UART_PHYS=0x1e784000
 CONFIG_DEBUG_UART_VIRT=0xe8784000
 CONFIG_EARLY_PRINTK=y
-CONFIG_DEBUG_SET_MODULE_RONX=y
+CONFIG_STRICT_MODULE_RWX=y
 # CONFIG_XZ_DEC_X86 is not set
 # CONFIG_XZ_DEC_POWERPC is not set
 # CONFIG_XZ_DEC_IA64 is not set
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index bdd283b..02454fa 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -490,7 +490,7 @@ static inline int set_memory_x(unsigned long addr, int numpages) { return 0; }
 static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; }
 #endif
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 void set_kernel_text_rw(void);
 void set_kernel_text_ro(void);
 #else
diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c
index 69bda1a..020560b 100644
--- a/arch/arm/kernel/patch.c
+++ b/arch/arm/kernel/patch.c
@@ -24,9 +24,9 @@ static void __kprobes *patch_map(void *addr, int fixmap, unsigned long *flags)
 	bool module = !core_kernel_text(uintaddr);
 	struct page *page;
 
-	if (module && IS_ENABLED(CONFIG_DEBUG_SET_MODULE_RONX))
+	if (module && IS_ENABLED(CONFIG_STRICT_MODULE_RWX))
 		page = vmalloc_to_page(addr);
-	else if (!module && IS_ENABLED(CONFIG_DEBUG_RODATA))
+	else if (!module && IS_ENABLED(CONFIG_STRICT_KERNEL_RWX))
 		page = virt_to_page(addr);
 	else
 		return addr;
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index f7f55df..ce18007 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -97,7 +97,7 @@ SECTIONS
 		HEAD_TEXT
 	}
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 	. = ALIGN(1<<SECTION_SHIFT);
 #endif
 
@@ -158,7 +158,7 @@ SECTIONS
 
 	NOTES
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 	. = ALIGN(1<<SECTION_SHIFT);
 #else
 	. = ALIGN(PAGE_SIZE);
@@ -230,7 +230,7 @@ SECTIONS
 	PERCPU_SECTION(L1_CACHE_BYTES)
 #endif
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 	. = ALIGN(1<<SECTION_SHIFT);
 #else
 	. = ALIGN(THREAD_SIZE);
@@ -325,7 +325,7 @@ SECTIONS
 	STABS_DEBUG
 }
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 /*
  * Without CONFIG_DEBUG_ALIGN_RODATA, __start_rodata_section_aligned will
  * be the first section-aligned location after __start_rodata. Otherwise,
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 419a035..35e3a56 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -1053,7 +1053,7 @@ config ARCH_SUPPORTS_BIG_ENDIAN
 
 config DEBUG_ALIGN_RODATA
 	bool "Make rodata strictly non-executable"
-	depends on DEBUG_RODATA
+	depends on STRICT_KERNEL_RWX
 	default y
 	help
 	  If this is set, rodata will be made explicitly non-executable. This
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 370581a..4be0bee 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -572,7 +572,7 @@ void __init mem_init(void)
 	}
 }
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 struct section_perm {
 	const char *name;
 	unsigned long start;
@@ -741,7 +741,7 @@ void set_kernel_text_ro(void)
 
 #else
 static inline void fix_kernmem_perms(void) { }
-#endif /* CONFIG_DEBUG_RODATA */
+#endif /* CONFIG_STRICT_KERNEL_RWX */
 
 void free_tcmmem(void)
 {
diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
index 939815e..560a8d8 100644
--- a/arch/arm64/Kconfig.debug
+++ b/arch/arm64/Kconfig.debug
@@ -72,7 +72,7 @@ config DEBUG_WX
 	  If in doubt, say "Y".
 
 config DEBUG_ALIGN_RODATA
-	depends on DEBUG_RODATA
+	depends on STRICT_KERNEL_RWX
 	bool "Align linker sections up to SECTION_SIZE"
 	help
 	  If this option is enabled, sections that may potentially be marked as
diff --git a/arch/arm64/kernel/insn.c b/arch/arm64/kernel/insn.c
index 94b62c1..67f9cb9 100644
--- a/arch/arm64/kernel/insn.c
+++ b/arch/arm64/kernel/insn.c
@@ -93,7 +93,7 @@ static void __kprobes *patch_map(void *addr, int fixmap)
 	bool module = !core_kernel_text(uintaddr);
 	struct page *page;
 
-	if (module && IS_ENABLED(CONFIG_DEBUG_SET_MODULE_RONX))
+	if (module && IS_ENABLED(CONFIG_STRICT_MODULE_RWX))
 		page = vmalloc_to_page(addr);
 	else if (!module)
 		page = pfn_to_page(PHYS_PFN(__pa(addr)));
diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig
index db8f56b..143d026 100644
--- a/arch/parisc/configs/712_defconfig
+++ b/arch/parisc/configs/712_defconfig
@@ -182,7 +182,6 @@ CONFIG_DEBUG_FS=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
 # CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_DEBUG_RODATA=y
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_HMAC=y
diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index fb92b89..8e8f0e3 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -166,7 +166,6 @@ CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
 # CONFIG_DEBUG_BUGVERBOSE is not set
 # CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_DEBUG_RODATA=y
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_MD5=m
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index e02ada3..a055e5b 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -545,7 +545,7 @@ void free_initmem(void)
 }
 
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 void mark_rodata_ro(void)
 {
 	/* rodata memory was already mapped with KERNEL_RO access rights by
diff --git a/include/linux/filter.h b/include/linux/filter.h
index e4eb254..c2d2827 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -545,7 +545,7 @@ static inline bool bpf_prog_was_classic(const struct bpf_prog *prog)
 
 #define bpf_classic_proglen(fprog) (fprog->len * sizeof(fprog->filter[0]))
 
-#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+#ifdef CONFIG_STRICT_MODULE_RWX
 static inline void bpf_prog_lock_ro(struct bpf_prog *fp)
 {
 	set_memory_ro((unsigned long)fp, fp->pages);
@@ -563,7 +563,7 @@ static inline void bpf_prog_lock_ro(struct bpf_prog *fp)
 static inline void bpf_prog_unlock_ro(struct bpf_prog *fp)
 {
 }
-#endif /* CONFIG_DEBUG_SET_MODULE_RONX */
+#endif /* CONFIG_STRICT_MODULE_RWX */
 
 int sk_filter_trim_cap(struct sock *sk, struct sk_buff *skb, unsigned int cap);
 static inline int sk_filter(struct sock *sk, struct sk_buff *skb)
diff --git a/include/linux/init.h b/include/linux/init.h
index 885c3e6..79af096 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -126,10 +126,10 @@ void prepare_namespace(void);
 void __init load_default_modules(void);
 int __init init_rootfs(void);
 
-#if defined(CONFIG_DEBUG_RODATA) || defined(CONFIG_DEBUG_SET_MODULE_RONX)
+#if defined(CONFIG_STRICT_KERNEL_RWX) || defined(CONFIG_STRICT_MODULE_RWX)
 extern bool rodata_enabled;
 #endif
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 void mark_rodata_ro(void);
 #endif
 
diff --git a/include/linux/module.h b/include/linux/module.h
index 7c84273..d5afd14 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -764,7 +764,7 @@ extern int module_sysfs_initialized;
 
 #define __MODULE_STRING(x) __stringify(x)
 
-#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+#ifdef CONFIG_STRICT_MODULE_RWX
 extern void set_all_modules_text_rw(void);
 extern void set_all_modules_text_ro(void);
 extern void module_enable_ro(const struct module *mod, bool after_init);
diff --git a/init/main.c b/init/main.c
index b0c9d6f..0b7bae2 100644
--- a/init/main.c
+++ b/init/main.c
@@ -925,7 +925,7 @@ static int try_to_run_init_process(const char *init_filename)
 
 static noinline void __init kernel_init_freeable(void);
 
-#if defined(CONFIG_DEBUG_RODATA) || defined(CONFIG_DEBUG_SET_MODULE_RONX)
+#if defined(CONFIG_STRICT_KERNEL_RWX) || defined(CONFIG_STRICT_MODULE_RWX)
 bool rodata_enabled __ro_after_init = true;
 static int __init set_debug_rodata(char *str)
 {
@@ -934,7 +934,7 @@ static int __init set_debug_rodata(char *str)
 __setup("rodata=", set_debug_rodata);
 #endif
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 static void mark_readonly(void)
 {
 	if (rodata_enabled)
diff --git a/kernel/configs/android-recommended.config b/kernel/configs/android-recommended.config
index 297756b..99127ed 100644
--- a/kernel/configs/android-recommended.config
+++ b/kernel/configs/android-recommended.config
@@ -11,7 +11,7 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=8192
 CONFIG_COMPACTION=y
-CONFIG_DEBUG_RODATA=y
+CONFIG_STRICT_KERNEL_RWX=y
 CONFIG_DM_CRYPT=y
 CONFIG_DM_UEVENT=y
 CONFIG_DM_VERITY=y
diff --git a/kernel/module.c b/kernel/module.c
index 38d4270..2643a14 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -74,9 +74,9 @@
 /*
  * Modules' sections will be aligned on page boundaries
  * to ensure complete separation of code and data, but
- * only when CONFIG_DEBUG_SET_MODULE_RONX=y
+ * only when CONFIG_STRICT_MODULE_RWX=y
  */
-#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+#ifdef CONFIG_STRICT_MODULE_RWX
 # define debug_align(X) ALIGN(X, PAGE_SIZE)
 #else
 # define debug_align(X) (X)
@@ -1847,7 +1847,7 @@ static void mod_sysfs_teardown(struct module *mod)
 	mod_sysfs_fini(mod);
 }
 
-#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+#ifdef CONFIG_STRICT_MODULE_RWX
 /*
  * LKM RO/NX protection: protect module's text/ro-data
  * from modification and any data from execution.
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index b26dbc4..86385af 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -1156,7 +1156,7 @@ static int __init hibernate_setup(char *str)
 	} else if (!strncmp(str, "no", 2)) {
 		noresume = 1;
 		nohibernate = 1;
-	} else if (IS_ENABLED(CONFIG_DEBUG_RODATA)
+	} else if (IS_ENABLED(CONFIG_STRICT_KERNEL_RWX)
 		   && !strncmp(str, "protect_image", 13)) {
 		enable_restore_image_protection();
 	}
diff --git a/kernel/power/power.h b/kernel/power/power.h
index 1dfa0da..7fdc40d 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -61,12 +61,12 @@ extern int hibernation_snapshot(int platform_mode);
 extern int hibernation_restore(int platform_mode);
 extern int hibernation_platform_enter(void);
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 /* kernel/power/snapshot.c */
 extern void enable_restore_image_protection(void);
 #else
 static inline void enable_restore_image_protection(void) {}
-#endif /* CONFIG_DEBUG_RODATA */
+#endif /* CONFIG_STRICT_KERNEL_RWX */
 
 #else /* !CONFIG_HIBERNATION */
 
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 2d8e2b2..905d5bb 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -38,7 +38,7 @@
 
 #include "power.h"
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 static bool hibernate_restore_protection;
 static bool hibernate_restore_protection_active;
 
@@ -73,7 +73,7 @@ static inline void hibernate_restore_protection_begin(void) {}
 static inline void hibernate_restore_protection_end(void) {}
 static inline void hibernate_restore_protect_page(void *page_address) {}
 static inline void hibernate_restore_unprotect_page(void *page_address) {}
-#endif /* CONFIG_DEBUG_RODATA */
+#endif /* CONFIG_STRICT_KERNEL_RWX */
 
 static int swsusp_page_is_free(struct page *);
 static void swsusp_set_page_forbidden(struct page *);
-- 
2.7.4



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Subject: Re: [PATCHv2 1/2] arch: Move CONFIG_DEBUG_RODATA and
 CONFIG_SET_MODULE_RONX to be common
Date: Fri, 3 Feb 2017 18:16:07 +0000
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Approved: news@gmane.org
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Cc: Kees Cook <keescook@chromium.org>,
        Jason Wessel <jason.wessel@windriver.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
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To: Laura Abbott <labbott@redhat.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/27251>

On Fri, Feb 03, 2017 at 09:52:21AM -0800, Laura Abbott wrote:
> There are multiple architectures that support CONFIG_DEBUG_RODATA and
> CONFIG_SET_MODULE_RONX. These options also now have the ability to be
> turned off at runtime. Move these to an architecture independent
> location and make these options def_bool y for almost all of those
> arches.
> 
> Signed-off-by: Laura Abbott <labbott@redhat.com>

>From my POV this looks good. FWIW:

Acked-by: Mark Rutland <mark.rutland@arm.com>

Mark.

> ---
> v2: This patch is now doing just the refactor of the existing config options.
> ---
>  arch/Kconfig              | 28 ++++++++++++++++++++++++++++
>  arch/arm/Kconfig          |  3 +++
>  arch/arm/Kconfig.debug    | 11 -----------
>  arch/arm/mm/Kconfig       | 12 ------------
>  arch/arm64/Kconfig        |  5 ++---
>  arch/arm64/Kconfig.debug  | 11 -----------
>  arch/parisc/Kconfig       |  1 +
>  arch/parisc/Kconfig.debug | 11 -----------
>  arch/s390/Kconfig         |  5 ++---
>  arch/s390/Kconfig.debug   |  3 ---
>  arch/x86/Kconfig          |  5 ++---
>  arch/x86/Kconfig.debug    | 11 -----------
>  12 files changed, 38 insertions(+), 68 deletions(-)
> 
> diff --git a/arch/Kconfig b/arch/Kconfig
> index 99839c2..22ee01e 100644
> --- a/arch/Kconfig
> +++ b/arch/Kconfig
> @@ -781,4 +781,32 @@ config VMAP_STACK
>  	  the stack to map directly to the KASAN shadow map using a formula
>  	  that is incorrect if the stack is in vmalloc space.
>  
> +config ARCH_NO_STRICT_RWX_DEFAULTS
> +	def_bool n
> +
> +config ARCH_HAS_STRICT_KERNEL_RWX
> +	def_bool n
> +
> +config DEBUG_RODATA
> +	def_bool y if !ARCH_NO_STRICT_RWX_DEFAULTS
> +	prompt "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS
> +	depends on ARCH_HAS_STRICT_KERNEL_RWX
> +	help
> +	  If this is set, kernel text and rodata memory will be made read-only,
> +	  and non-text memory will be made non-executable. This provides
> +	  protection against certain security exploits (e.g. executing the heap
> +	  or modifying text)
> +
> +config ARCH_HAS_STRICT_MODULE_RWX
> +	def_bool n
> +
> +config DEBUG_SET_MODULE_RONX
> +	def_bool y if !ARCH_NO_STRICT_RWX_DEFAULTS
> +	prompt "Set loadable kenrel module data as NX and text as RO" if ARCH_NO_STRICT_RWX_DEFAULTS
> +	depends on ARCH_HAS_STRICT_MODULE_RWX && MODULES
> +	help
> +	  If this is set, module text and rodata memory will be made read-only,
> +	  and non-text memory will be made non-executable. This provides
> +	  protection against certain security exploits (e.g. writing to text)
> +
>  source "kernel/gcov/Kconfig"
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 186c4c2..aa73ca8 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -4,10 +4,13 @@ config ARM
>  	select ARCH_CLOCKSOURCE_DATA
>  	select ARCH_HAS_DEVMEM_IS_ALLOWED
>  	select ARCH_HAS_ELF_RANDOMIZE
> +	select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
> +	select ARCH_HAS_STRICT_MODULE_RWX if MMU
>  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
>  	select ARCH_HAVE_CUSTOM_GPIO_H
>  	select ARCH_HAS_GCOV_PROFILE_ALL
>  	select ARCH_MIGHT_HAVE_PC_PARPORT
> +	select ARCH_NO_STRICT_RWX_DEFAULTS if !CPU_V7
>  	select ARCH_SUPPORTS_ATOMIC_RMW
>  	select ARCH_USE_BUILTIN_BSWAP
>  	select ARCH_USE_CMPXCHG_LOCKREF
> diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> index d83f7c3..426d271 100644
> --- a/arch/arm/Kconfig.debug
> +++ b/arch/arm/Kconfig.debug
> @@ -1738,17 +1738,6 @@ config PID_IN_CONTEXTIDR
>  	  additional instructions during context switch. Say Y here only if you
>  	  are planning to use hardware trace tools with this kernel.
>  
> -config DEBUG_SET_MODULE_RONX
> -	bool "Set loadable kernel module data as NX and text as RO"
> -	depends on MODULES && MMU
> -	---help---
> -	  This option helps catch unintended modifications to loadable
> -	  kernel module's text and read-only data. It also prevents execution
> -	  of module data. Such protection may interfere with run-time code
> -	  patching and dynamic kernel tracing - and they might also protect
> -	  against certain classes of kernel exploits.
> -	  If in doubt, say "N".
> -
>  source "drivers/hwtracing/coresight/Kconfig"
>  
>  endmenu
> diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
> index f68e8ec..419a035 100644
> --- a/arch/arm/mm/Kconfig
> +++ b/arch/arm/mm/Kconfig
> @@ -1051,18 +1051,6 @@ config ARCH_SUPPORTS_BIG_ENDIAN
>  	  This option specifies the architecture can support big endian
>  	  operation.
>  
> -config DEBUG_RODATA
> -	bool "Make kernel text and rodata read-only"
> -	depends on MMU && !XIP_KERNEL
> -	default y if CPU_V7
> -	help
> -	  If this is set, kernel text and rodata memory will be made
> -	  read-only, and non-text kernel memory will be made non-executable.
> -	  The tradeoff is that each region is padded to section-size (1MiB)
> -	  boundaries (because their permissions are different and splitting
> -	  the 1M pages into 4K ones causes TLB performance problems), which
> -	  can waste memory.
> -
>  config DEBUG_ALIGN_RODATA
>  	bool "Make rodata strictly non-executable"
>  	depends on DEBUG_RODATA
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 1117421..e1efbcc 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -13,6 +13,8 @@ config ARM64
>  	select ARCH_HAS_GIGANTIC_PAGE
>  	select ARCH_HAS_KCOV
>  	select ARCH_HAS_SG_CHAIN
> +	select ARCH_HAS_STRICT_KERNEL_RWX
> +	select ARCH_HAS_STRICT_MODULE_RWX
>  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
>  	select ARCH_USE_CMPXCHG_LOCKREF
>  	select ARCH_SUPPORTS_ATOMIC_RMW
> @@ -123,9 +125,6 @@ config ARCH_PHYS_ADDR_T_64BIT
>  config MMU
>  	def_bool y
>  
> -config DEBUG_RODATA
> -	def_bool y
> -
>  config ARM64_PAGE_SHIFT
>  	int
>  	default 16 if ARM64_64K_PAGES
> diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
> index d1ebd46..939815e 100644
> --- a/arch/arm64/Kconfig.debug
> +++ b/arch/arm64/Kconfig.debug
> @@ -71,17 +71,6 @@ config DEBUG_WX
>  
>  	  If in doubt, say "Y".
>  
> -config DEBUG_SET_MODULE_RONX
> -	bool "Set loadable kernel module data as NX and text as RO"
> -	depends on MODULES
> -	default y
> -	help
> -	  Is this is set, kernel module text and rodata will be made read-only.
> -	  This is to help catch accidental or malicious attempts to change the
> -	  kernel's executable code.
> -
> -	  If in doubt, say Y.
> -
>  config DEBUG_ALIGN_RODATA
>  	depends on DEBUG_RODATA
>  	bool "Align linker sections up to SECTION_SIZE"
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index 3a71f38..ad294b3 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -8,6 +8,7 @@ config PARISC
>  	select HAVE_SYSCALL_TRACEPOINTS
>  	select ARCH_WANT_FRAME_POINTERS
>  	select ARCH_HAS_ELF_RANDOMIZE
> +	select ARCH_HAS_STRICT_KERNEL_RWX
>  	select RTC_CLASS
>  	select RTC_DRV_GENERIC
>  	select INIT_ALL_POSSIBLE
> diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
> index 68b7cbd..0d856b9 100644
> --- a/arch/parisc/Kconfig.debug
> +++ b/arch/parisc/Kconfig.debug
> @@ -5,15 +5,4 @@ source "lib/Kconfig.debug"
>  config TRACE_IRQFLAGS_SUPPORT
>  	def_bool y
>  
> -config DEBUG_RODATA
> -       bool "Write protect kernel read-only data structures"
> -       depends on DEBUG_KERNEL
> -       default y
> -       help
> -         Mark the kernel read-only data as write-protected in the pagetables,
> -         in order to catch accidental (and incorrect) writes to such const
> -         data. This option may have a slight performance impact because a
> -         portion of the kernel code won't be covered by a TLB anymore.
> -         If in doubt, say "N".
> -
>  endmenu
> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> index c6722112..53bb0e3 100644
> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -62,9 +62,6 @@ config PCI_QUIRKS
>  config ARCH_SUPPORTS_UPROBES
>  	def_bool y
>  
> -config DEBUG_RODATA
> -	def_bool y
> -
>  config S390
>  	def_bool y
>  	select ARCH_HAS_DEVMEM_IS_ALLOWED
> @@ -73,6 +70,8 @@ config S390
>  	select ARCH_HAS_GIGANTIC_PAGE
>  	select ARCH_HAS_KCOV
>  	select ARCH_HAS_SG_CHAIN
> +	select ARCH_HAS_STRICT_KERNEL_RWX
> +	select ARCH_HAS_STRICT_MODULE_RWX
>  	select ARCH_HAS_UBSAN_SANITIZE_ALL
>  	select ARCH_HAVE_NMI_SAFE_CMPXCHG
>  	select ARCH_INLINE_READ_LOCK
> diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
> index 26c5d5be..57f8ea9 100644
> --- a/arch/s390/Kconfig.debug
> +++ b/arch/s390/Kconfig.debug
> @@ -17,7 +17,4 @@ config S390_PTDUMP
>  	  kernel.
>  	  If in doubt, say "N"
>  
> -config DEBUG_SET_MODULE_RONX
> -	def_bool y
> -	depends on MODULES
>  endmenu
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index e487493..13e1bf4 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -54,6 +54,8 @@ config X86
>  	select ARCH_HAS_MMIO_FLUSH
>  	select ARCH_HAS_PMEM_API		if X86_64
>  	select ARCH_HAS_SG_CHAIN
> +	select ARCH_HAS_STRICT_KERNEL_RWX
> +	select ARCH_HAS_STRICT_MODULE_RWX
>  	select ARCH_HAS_UBSAN_SANITIZE_ALL
>  	select ARCH_HAVE_NMI_SAFE_CMPXCHG
>  	select ARCH_MIGHT_HAVE_ACPI_PDC		if ACPI
> @@ -309,9 +311,6 @@ config ARCH_SUPPORTS_UPROBES
>  config FIX_EARLYCON_MEM
>  	def_bool y
>  
> -config DEBUG_RODATA
> -	def_bool y
> -
>  config PGTABLE_LEVELS
>  	int
>  	default 4 if X86_64
> diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
> index 67eec55..69cdd0b 100644
> --- a/arch/x86/Kconfig.debug
> +++ b/arch/x86/Kconfig.debug
> @@ -109,17 +109,6 @@ config DEBUG_WX
>  
>  	  If in doubt, say "Y".
>  
> -config DEBUG_SET_MODULE_RONX
> -	bool "Set loadable kernel module data as NX and text as RO"
> -	depends on MODULES
> -	---help---
> -	  This option helps catch unintended modifications to loadable
> -	  kernel module's text and read-only data. It also prevents execution
> -	  of module data. Such protection may interfere with run-time code
> -	  patching and dynamic kernel tracing - and they might also protect
> -	  against certain classes of kernel exploits.
> -	  If in doubt, say "N".
> -
>  config DEBUG_NX_TEST
>  	tristate "Testcase for the NX non-executable stack feature"
>  	depends on DEBUG_KERNEL && m
> -- 
> 2.7.4
> 
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From - Thu Nov 08 21:39:36 2018
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From: Mark Rutland <mark.rutland@arm.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.power-management.general,gmane.linux.kernel.hardened.devel
Subject: Re: [PATCHv2 2/2] arch: Rename CONFIG_DEBUG_RODATA and
 CONFIG_DEBUG_MODULE_RONX
Date: Fri, 3 Feb 2017 18:26:49 +0000
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Cc: Kees Cook <keescook@chromium.org>,
        Jason Wessel <jason.wessel@windriver.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
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        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
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        Jessica Yu <jeyu@redhat.com>, linux-doc@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.i
To: Laura Abbott <labbott@redhat.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/27252>

On Fri, Feb 03, 2017 at 09:52:22AM -0800, Laura Abbott wrote:
> 
> Both of these options are poorly named. The features they provide are
> necessary for system security and should not be considered debug only.
> Change the name to something that accurately describes what these
> options do.
> 
> Signed-off-by: Laura Abbott <labbott@redhat.com>

As with patch 1, this looks good to me. FWIW:

Acked-by: Mark Rutland <mark.rutland@arm.com>

> diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
> index 939815e..560a8d8 100644
> --- a/arch/arm64/Kconfig.debug
> +++ b/arch/arm64/Kconfig.debug
> @@ -72,7 +72,7 @@ config DEBUG_WX
>  	  If in doubt, say "Y".
>  
>  config DEBUG_ALIGN_RODATA
> -	depends on DEBUG_RODATA
> +	depends on STRICT_KERNEL_RWX
>  	bool "Align linker sections up to SECTION_SIZE"
>  	help
>  	  If this option is enabled, sections that may potentially be marked as
> diff --git a/arch/arm64/kernel/insn.c b/arch/arm64/kernel/insn.c
> index 94b62c1..67f9cb9 100644
> --- a/arch/arm64/kernel/insn.c
> +++ b/arch/arm64/kernel/insn.c
> @@ -93,7 +93,7 @@ static void __kprobes *patch_map(void *addr, int fixmap)
>  	bool module = !core_kernel_text(uintaddr);
>  	struct page *page;
>  
> -	if (module && IS_ENABLED(CONFIG_DEBUG_SET_MODULE_RONX))
> +	if (module && IS_ENABLED(CONFIG_STRICT_MODULE_RWX))
>  		page = vmalloc_to_page(addr);
>  	else if (!module)
>  		page = pfn_to_page(PHYS_PFN(__pa(addr)));

Since CONFIG_STRICT_MODULE_RWX is mandatory for arm64, we should be able
to simplify this, but that can wait for a later patch.

Thanks,
Mark.
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Subject: Re: [PATCHv2 1/2] arch: Move CONFIG_DEBUG_RODATA and
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Date: Fri, 3 Feb 2017 11:45:56 -0800
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To: Laura Abbott <labbott@redhat.com>
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On Fri, Feb 3, 2017 at 9:52 AM, Laura Abbott <labbott@redhat.com> wrote:
> There are multiple architectures that support CONFIG_DEBUG_RODATA and
> CONFIG_SET_MODULE_RONX. These options also now have the ability to be
> turned off at runtime. Move these to an architecture independent
> location and make these options def_bool y for almost all of those
> arches.
>
> Signed-off-by: Laura Abbott <labbott@redhat.com>
> ---
> v2: This patch is now doing just the refactor of the existing config options.
> ---
>  arch/Kconfig              | 28 ++++++++++++++++++++++++++++
>  arch/arm/Kconfig          |  3 +++
>  arch/arm/Kconfig.debug    | 11 -----------
>  arch/arm/mm/Kconfig       | 12 ------------
>  arch/arm64/Kconfig        |  5 ++---
>  arch/arm64/Kconfig.debug  | 11 -----------
>  arch/parisc/Kconfig       |  1 +
>  arch/parisc/Kconfig.debug | 11 -----------
>  arch/s390/Kconfig         |  5 ++---
>  arch/s390/Kconfig.debug   |  3 ---
>  arch/x86/Kconfig          |  5 ++---
>  arch/x86/Kconfig.debug    | 11 -----------
>  12 files changed, 38 insertions(+), 68 deletions(-)
>
> diff --git a/arch/Kconfig b/arch/Kconfig
> index 99839c2..22ee01e 100644
> --- a/arch/Kconfig
> +++ b/arch/Kconfig
> @@ -781,4 +781,32 @@ config VMAP_STACK
>           the stack to map directly to the KASAN shadow map using a formula
>           that is incorrect if the stack is in vmalloc space.
>
> +config ARCH_NO_STRICT_RWX_DEFAULTS
> +       def_bool n
> +
> +config ARCH_HAS_STRICT_KERNEL_RWX
> +       def_bool n
> +
> +config DEBUG_RODATA
> +       def_bool y if !ARCH_NO_STRICT_RWX_DEFAULTS
> +       prompt "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS

Ah! Yes, perfect. I totally forgot about using conditional "prompt" lines. Nice!

Acked-by: Kees Cook <keescook@chromium.org>

-Kees

-- 
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From - Thu Nov 08 21:39:36 2018
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Subject: Re: [PATCHv2 2/2] arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX
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        Jonathan Corbet <corbet@lwn.net>,
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To: Laura Abbott <labbott@redhat.com>
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On Fri, Feb 3, 2017 at 9:52 AM, Laura Abbott <labbott@redhat.com> wrote:
>
> Both of these options are poorly named. The features they provide are
> necessary for system security and should not be considered debug only.
> Change the name to something that accurately describes what these
> options do.

It may help to explicitly call out the name change from/to in the
commit message.

>
> Signed-off-by: Laura Abbott <labbott@redhat.com>
> ---
> [...]
> diff --git a/arch/arm/configs/aspeed_g4_defconfig b/arch/arm/configs/aspeed_g4_defconfig
> index ca39c04..beea2cc 100644
> --- a/arch/arm/configs/aspeed_g4_defconfig
> +++ b/arch/arm/configs/aspeed_g4_defconfig
> @@ -25,7 +25,6 @@ CONFIG_MODULE_UNLOAD=y
>  # CONFIG_ARCH_MULTI_V7 is not set
>  CONFIG_ARCH_ASPEED=y
>  CONFIG_MACH_ASPEED_G4=y
> -CONFIG_DEBUG_RODATA=y
>  CONFIG_AEABI=y
>  CONFIG_UACCESS_WITH_MEMCPY=y
>  CONFIG_SECCOMP=y

Are these defconfig cases correct (dropping DEBUG_RODATA without
adding STRICT_KERNEL_RWX)?

Who should carry this series, btw?

-Kees

-- 
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	Len Brown <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>,
	Mark Rutland <mark.rutland@arm.com>, Jessica Yu <jeyu@redhat.com>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>,
	linux-pa
To: Kees Cook <keescook@chromium.org>
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Original-Sender: Russell King - ARM Linux <linux@armlinux.org.uk>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.hardened.devel/5439>

On Fri, Feb 03, 2017 at 11:45:56AM -0800, Kees Cook wrote:
> On Fri, Feb 3, 2017 at 9:52 AM, Laura Abbott <labbott@redhat.com> wrote:
> > diff --git a/arch/Kconfig b/arch/Kconfig
> > index 99839c2..22ee01e 100644
> > --- a/arch/Kconfig
> > +++ b/arch/Kconfig
> > @@ -781,4 +781,32 @@ config VMAP_STACK
> >           the stack to map directly to the KASAN shadow map using a formula
> >           that is incorrect if the stack is in vmalloc space.
> >
> > +config ARCH_NO_STRICT_RWX_DEFAULTS
> > +       def_bool n
> > +
> > +config ARCH_HAS_STRICT_KERNEL_RWX
> > +       def_bool n
> > +
> > +config DEBUG_RODATA
> > +       def_bool y if !ARCH_NO_STRICT_RWX_DEFAULTS
> > +       prompt "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS
> 
> Ah! Yes, perfect. I totally forgot about using conditional "prompt"
> lines. Nice!

It's no different from the more usual:

	bool "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS
	default y if !ARCH_NO_STRICT_RWX_DEFAULTS
	depends on ARCH_HAS_STRICT_KERNEL_RWX

But... I really don't like this - way too many negations and negatives
which make it difficult to figure out what's going on here.

The situation we have today is:

-config DEBUG_RODATA
-       bool "Make kernel text and rodata read-only"
-       depends on MMU && !XIP_KERNEL
-       default y if CPU_V7

which is "allow the user to select DEBUG_RODATA if building a MMU non-XIP
kernel", suggesting that the user turns it on for ARMv7 CPUs.

That changes with this and the above:

+       select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
+       select ARCH_HAS_STRICT_MODULE_RWX if MMU
+       select ARCH_NO_STRICT_RWX_DEFAULTS if !CPU_V7

This means that ARCH_HAS_STRICT_KERNEL_RWX is set for a MMU non-XIP
kernel, which carries the same pre-condition for DEBUG_RODATA - no
problem there.

However, ARCH_NO_STRICT_RWX_DEFAULTS is set for non-ARMv7 CPUs, which
means the "Make kernel text and rodata read-only" prompt _is_ provided
for those.  However, for all ARMv7 systems, we go from "suggesting that
the user enables the option" to "you don't have a choice, you get this
whether you want it or not."

I'd prefer to keep it off for my development systems, where I don't
care about kernel security.  If we don't wish to do that as a general
rule, can we make it dependent on EMBEDDED?

Given that on ARM it can add up to 4MB to the kernel image - there
_will_ be about 1MB before the .text section, the padding on between
__modver and __ex_table which for me is around 626k, the padding
between .notes and the init sections start with .vectors (the space
between __ex_table and end of .notes is only 4124, which gets padded
up to 1MB) and lastly the padding between the .init section and the
data section (for me around 593k).  This all adds up to an increase
in kernel image size of 3.2MB on 14.2MB - an increase of 22%.

So no, I'm really not happy with that.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.


From - Thu Nov 08 21:39:36 2018
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From: Kees Cook <keescook@chromium.org>
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Subject: Re: [PATCHv2 1/2] arch: Move CONFIG_DEBUG_RODATA and
 CONFIG_SET_MODULE_RONX to be common
Date: Fri, 3 Feb 2017 13:08:40 -0800
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Cc: Laura Abbott <labbott@redhat.com>,
        Jason Wessel <jason.wessel@windriver.com>,
        Jonathan Corbet <corbet@lwn.net>,
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To: Russell King - ARM Linux <linux@armlinux.org.uk>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/27256>

On Fri, Feb 3, 2017 at 12:29 PM, Russell King - ARM Linux
<linux@armlinux.org.uk> wrote:
> On Fri, Feb 03, 2017 at 11:45:56AM -0800, Kees Cook wrote:
>> On Fri, Feb 3, 2017 at 9:52 AM, Laura Abbott <labbott@redhat.com> wrote:
>> > diff --git a/arch/Kconfig b/arch/Kconfig
>> > index 99839c2..22ee01e 100644
>> > --- a/arch/Kconfig
>> > +++ b/arch/Kconfig
>> > @@ -781,4 +781,32 @@ config VMAP_STACK
>> >           the stack to map directly to the KASAN shadow map using a formula
>> >           that is incorrect if the stack is in vmalloc space.
>> >
>> > +config ARCH_NO_STRICT_RWX_DEFAULTS
>> > +       def_bool n
>> > +
>> > +config ARCH_HAS_STRICT_KERNEL_RWX
>> > +       def_bool n
>> > +
>> > +config DEBUG_RODATA
>> > +       def_bool y if !ARCH_NO_STRICT_RWX_DEFAULTS
>> > +       prompt "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS
>>
>> Ah! Yes, perfect. I totally forgot about using conditional "prompt"
>> lines. Nice!
>
> It's no different from the more usual:
>
>         bool "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS
>         default y if !ARCH_NO_STRICT_RWX_DEFAULTS
>         depends on ARCH_HAS_STRICT_KERNEL_RWX
>
> But... I really don't like this - way too many negations and negatives
> which make it difficult to figure out what's going on here.
>
> The situation we have today is:
>
> -config DEBUG_RODATA
> -       bool "Make kernel text and rodata read-only"
> -       depends on MMU && !XIP_KERNEL
> -       default y if CPU_V7
>
> which is "allow the user to select DEBUG_RODATA if building a MMU non-XIP
> kernel", suggesting that the user turns it on for ARMv7 CPUs.
>
> That changes with this and the above:
>
> +       select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
> +       select ARCH_HAS_STRICT_MODULE_RWX if MMU
> +       select ARCH_NO_STRICT_RWX_DEFAULTS if !CPU_V7
>
> This means that ARCH_HAS_STRICT_KERNEL_RWX is set for a MMU non-XIP
> kernel, which carries the same pre-condition for DEBUG_RODATA - no
> problem there.
>
> However, ARCH_NO_STRICT_RWX_DEFAULTS is set for non-ARMv7 CPUs, which
> means the "Make kernel text and rodata read-only" prompt _is_ provided
> for those.  However, for all ARMv7 systems, we go from "suggesting that
> the user enables the option" to "you don't have a choice, you get this
> whether you want it or not."
>
> I'd prefer to keep it off for my development systems, where I don't
> care about kernel security.  If we don't wish to do that as a general
> rule, can we make it dependent on EMBEDDED?
>
> Given that on ARM it can add up to 4MB to the kernel image - there
> _will_ be about 1MB before the .text section, the padding on between
> __modver and __ex_table which for me is around 626k, the padding
> between .notes and the init sections start with .vectors (the space
> between __ex_table and end of .notes is only 4124, which gets padded
> up to 1MB) and lastly the padding between the .init section and the
> data section (for me around 593k).  This all adds up to an increase
> in kernel image size of 3.2MB on 14.2MB - an increase of 22%.
>
> So no, I'm really not happy with that.

Ah yeah, good point. We have three cases: unsupported, mandatory,
optional, but we have the case of setting the default for the optional
case. Maybe something like this?

config STRICT_KERNEL_RWX
  bool "Make kernel text and rodata read-only" if ARCH_OPTIONAL_KERNEL_RWX
  depends on ARCH_HAS_STRICT_KERNEL_RWX
  default ARCH_OPTIONAL_KERNEL_RWX_DEFAULT

unsupported:
!ARCH_HAS_STRICT_KERNEL_RWX

mandatory:
ARCH_HAS_STRICT_KERNEL_RWX
!ARCH_OPTIONAL_KERNEL_RWX

optional:
ARCH_HAS_STRICT_KERNEL_RWX
ARCH_OPTIONAL_KERNEL_RWX
with default controlled by ARCH_OPTIONAL_KERNEL_RWX_DEFAULT

Then arm is:
  select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
  select ARCH_HAS_STRICT_MODULE_RWX if MMU
  select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
  select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT if CPU_V7

x86 and arm64 are:
  select ARCH_HAS_STRICT_KERNEL_RWX
  select ARCH_HAS_STRICT_MODULE_RWX

?

-Kees

-- 
Kees Cook
Pixel Security
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From - Thu Nov 08 21:39:36 2018
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From: Russell King - ARM Linux <linux@armlinux.org.uk>
Newsgroups: gmane.linux.power-management.general,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.hardened.devel
Subject: Re: [PATCHv2 1/2] arch: Move CONFIG_DEBUG_RODATA and
 CONFIG_SET_MODULE_RONX to be common
Date: Fri, 3 Feb 2017 22:28:22 +0000
Lines: 143
Approved: news@gmane.org
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Cc: Laura Abbott <labbott@redhat.com>,
        Jason Wessel <jason.wessel@windriver.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
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To: Kees Cook <keescook@chromium.org>
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On Fri, Feb 03, 2017 at 01:08:40PM -0800, Kees Cook wrote:
> On Fri, Feb 3, 2017 at 12:29 PM, Russell King - ARM Linux
> <linux@armlinux.org.uk> wrote:
> > On Fri, Feb 03, 2017 at 11:45:56AM -0800, Kees Cook wrote:
> >> On Fri, Feb 3, 2017 at 9:52 AM, Laura Abbott <labbott@redhat.com> wrote:
> >> > diff --git a/arch/Kconfig b/arch/Kconfig
> >> > index 99839c2..22ee01e 100644
> >> > --- a/arch/Kconfig
> >> > +++ b/arch/Kconfig
> >> > @@ -781,4 +781,32 @@ config VMAP_STACK
> >> >           the stack to map directly to the KASAN shadow map using a formula
> >> >           that is incorrect if the stack is in vmalloc space.
> >> >
> >> > +config ARCH_NO_STRICT_RWX_DEFAULTS
> >> > +       def_bool n
> >> > +
> >> > +config ARCH_HAS_STRICT_KERNEL_RWX
> >> > +       def_bool n
> >> > +
> >> > +config DEBUG_RODATA
> >> > +       def_bool y if !ARCH_NO_STRICT_RWX_DEFAULTS
> >> > +       prompt "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS
> >>
> >> Ah! Yes, perfect. I totally forgot about using conditional "prompt"
> >> lines. Nice!
> >
> > It's no different from the more usual:
> >
> >         bool "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS
> >         default y if !ARCH_NO_STRICT_RWX_DEFAULTS
> >         depends on ARCH_HAS_STRICT_KERNEL_RWX
> >
> > But... I really don't like this - way too many negations and negatives
> > which make it difficult to figure out what's going on here.
> >
> > The situation we have today is:
> >
> > -config DEBUG_RODATA
> > -       bool "Make kernel text and rodata read-only"
> > -       depends on MMU && !XIP_KERNEL
> > -       default y if CPU_V7
> >
> > which is "allow the user to select DEBUG_RODATA if building a MMU non-XIP
> > kernel", suggesting that the user turns it on for ARMv7 CPUs.
> >
> > That changes with this and the above:
> >
> > +       select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
> > +       select ARCH_HAS_STRICT_MODULE_RWX if MMU
> > +       select ARCH_NO_STRICT_RWX_DEFAULTS if !CPU_V7
> >
> > This means that ARCH_HAS_STRICT_KERNEL_RWX is set for a MMU non-XIP
> > kernel, which carries the same pre-condition for DEBUG_RODATA - no
> > problem there.
> >
> > However, ARCH_NO_STRICT_RWX_DEFAULTS is set for non-ARMv7 CPUs, which
> > means the "Make kernel text and rodata read-only" prompt _is_ provided
> > for those.  However, for all ARMv7 systems, we go from "suggesting that
> > the user enables the option" to "you don't have a choice, you get this
> > whether you want it or not."
> >
> > I'd prefer to keep it off for my development systems, where I don't
> > care about kernel security.  If we don't wish to do that as a general
> > rule, can we make it dependent on EMBEDDED?
> >
> > Given that on ARM it can add up to 4MB to the kernel image - there
> > _will_ be about 1MB before the .text section, the padding on between
> > __modver and __ex_table which for me is around 626k, the padding
> > between .notes and the init sections start with .vectors (the space
> > between __ex_table and end of .notes is only 4124, which gets padded
> > up to 1MB) and lastly the padding between the .init section and the
> > data section (for me around 593k).  This all adds up to an increase
> > in kernel image size of 3.2MB on 14.2MB - an increase of 22%.
> >
> > So no, I'm really not happy with that.
> 
> Ah yeah, good point. We have three cases: unsupported, mandatory,
> optional, but we have the case of setting the default for the optional
> case. Maybe something like this?
> 
> config STRICT_KERNEL_RWX
>   bool "Make kernel text and rodata read-only" if ARCH_OPTIONAL_KERNEL_RWX
>   depends on ARCH_HAS_STRICT_KERNEL_RWX
>   default ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
> 
> unsupported:
> !ARCH_HAS_STRICT_KERNEL_RWX
> 
> mandatory:
> ARCH_HAS_STRICT_KERNEL_RWX
> !ARCH_OPTIONAL_KERNEL_RWX
> 
> optional:
> ARCH_HAS_STRICT_KERNEL_RWX
> ARCH_OPTIONAL_KERNEL_RWX
> with default controlled by ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
> 
> Then arm is:
>   select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
>   select ARCH_HAS_STRICT_MODULE_RWX if MMU
>   select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
>   select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT if CPU_V7
> 
> x86 and arm64 are:
>   select ARCH_HAS_STRICT_KERNEL_RWX
>   select ARCH_HAS_STRICT_MODULE_RWX

Looks to me like it will do the job.

In passing, I noticed that, on ARM:

  3 .rodata       002212b4  c0703000  c0703000  00703000  2**6
                  CONTENTS, ALLOC, LOAD, DATA

a lack of READONLY there - which suggests something in this lot isn't
actually read-only data:

        .rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {           \
                VMLINUX_SYMBOL(__start_rodata) = .;                     \
                *(.rodata) *(.rodata.*)                                 \
                RO_AFTER_INIT_DATA      /* Read only after init */      \
                KEEP(*(__vermagic))     /* Kernel version magic */      \
                . = ALIGN(8);                                           \
                VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .;         \
                KEEP(*(__tracepoints_ptrs)) /* Tracepoints: pointer array */ \
                VMLINUX_SYMBOL(__stop___tracepoints_ptrs) = .;          \
                *(__tracepoints_strings)/* Tracepoints: strings */      \
        }                                                               \

I suspect it's the RO_AFTER_INIT_DATA section - maybe this should be
placed into its own separate output section?  I don't think it's doing
any harm, it's just odd that the .rodata section is marked as a normal
data section.

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From - Thu Nov 08 21:39:36 2018
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Subject: Re: [PATCHv2 1/2] arch: Move CONFIG_DEBUG_RODATA and
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Date: Fri, 3 Feb 2017 15:07:02 -0800
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Cc: Laura Abbott <labbott@redhat.com>,
        Jason Wessel <jason.wessel@windriver.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Catalin Marinas <catalin.marinas@arm.com>,
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To: Russell King - ARM Linux <linux@armlinux.org.uk>
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On Fri, Feb 3, 2017 at 2:28 PM, Russell King - ARM Linux
<linux@armlinux.org.uk> wrote:
> On Fri, Feb 03, 2017 at 01:08:40PM -0800, Kees Cook wrote:
>> On Fri, Feb 3, 2017 at 12:29 PM, Russell King - ARM Linux
>> <linux@armlinux.org.uk> wrote:
>> > On Fri, Feb 03, 2017 at 11:45:56AM -0800, Kees Cook wrote:
>> >> On Fri, Feb 3, 2017 at 9:52 AM, Laura Abbott <labbott@redhat.com> wrote:
>> >> > diff --git a/arch/Kconfig b/arch/Kconfig
>> >> > index 99839c2..22ee01e 100644
>> >> > --- a/arch/Kconfig
>> >> > +++ b/arch/Kconfig
>> >> > @@ -781,4 +781,32 @@ config VMAP_STACK
>> >> >           the stack to map directly to the KASAN shadow map using a formula
>> >> >           that is incorrect if the stack is in vmalloc space.
>> >> >
>> >> > +config ARCH_NO_STRICT_RWX_DEFAULTS
>> >> > +       def_bool n
>> >> > +
>> >> > +config ARCH_HAS_STRICT_KERNEL_RWX
>> >> > +       def_bool n
>> >> > +
>> >> > +config DEBUG_RODATA
>> >> > +       def_bool y if !ARCH_NO_STRICT_RWX_DEFAULTS
>> >> > +       prompt "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS
>> >>
>> >> Ah! Yes, perfect. I totally forgot about using conditional "prompt"
>> >> lines. Nice!
>> >
>> > It's no different from the more usual:
>> >
>> >         bool "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS
>> >         default y if !ARCH_NO_STRICT_RWX_DEFAULTS
>> >         depends on ARCH_HAS_STRICT_KERNEL_RWX
>> >
>> > But... I really don't like this - way too many negations and negatives
>> > which make it difficult to figure out what's going on here.
>> >
>> > The situation we have today is:
>> >
>> > -config DEBUG_RODATA
>> > -       bool "Make kernel text and rodata read-only"
>> > -       depends on MMU && !XIP_KERNEL
>> > -       default y if CPU_V7
>> >
>> > which is "allow the user to select DEBUG_RODATA if building a MMU non-XIP
>> > kernel", suggesting that the user turns it on for ARMv7 CPUs.
>> >
>> > That changes with this and the above:
>> >
>> > +       select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
>> > +       select ARCH_HAS_STRICT_MODULE_RWX if MMU
>> > +       select ARCH_NO_STRICT_RWX_DEFAULTS if !CPU_V7
>> >
>> > This means that ARCH_HAS_STRICT_KERNEL_RWX is set for a MMU non-XIP
>> > kernel, which carries the same pre-condition for DEBUG_RODATA - no
>> > problem there.
>> >
>> > However, ARCH_NO_STRICT_RWX_DEFAULTS is set for non-ARMv7 CPUs, which
>> > means the "Make kernel text and rodata read-only" prompt _is_ provided
>> > for those.  However, for all ARMv7 systems, we go from "suggesting that
>> > the user enables the option" to "you don't have a choice, you get this
>> > whether you want it or not."
>> >
>> > I'd prefer to keep it off for my development systems, where I don't
>> > care about kernel security.  If we don't wish to do that as a general
>> > rule, can we make it dependent on EMBEDDED?
>> >
>> > Given that on ARM it can add up to 4MB to the kernel image - there
>> > _will_ be about 1MB before the .text section, the padding on between
>> > __modver and __ex_table which for me is around 626k, the padding
>> > between .notes and the init sections start with .vectors (the space
>> > between __ex_table and end of .notes is only 4124, which gets padded
>> > up to 1MB) and lastly the padding between the .init section and the
>> > data section (for me around 593k).  This all adds up to an increase
>> > in kernel image size of 3.2MB on 14.2MB - an increase of 22%.
>> >
>> > So no, I'm really not happy with that.
>>
>> Ah yeah, good point. We have three cases: unsupported, mandatory,
>> optional, but we have the case of setting the default for the optional
>> case. Maybe something like this?
>>
>> config STRICT_KERNEL_RWX
>>   bool "Make kernel text and rodata read-only" if ARCH_OPTIONAL_KERNEL_RWX
>>   depends on ARCH_HAS_STRICT_KERNEL_RWX
>>   default ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
>>
>> unsupported:
>> !ARCH_HAS_STRICT_KERNEL_RWX
>>
>> mandatory:
>> ARCH_HAS_STRICT_KERNEL_RWX
>> !ARCH_OPTIONAL_KERNEL_RWX
>>
>> optional:
>> ARCH_HAS_STRICT_KERNEL_RWX
>> ARCH_OPTIONAL_KERNEL_RWX
>> with default controlled by ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
>>
>> Then arm is:
>>   select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
>>   select ARCH_HAS_STRICT_MODULE_RWX if MMU
>>   select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
>>   select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT if CPU_V7
>>
>> x86 and arm64 are:
>>   select ARCH_HAS_STRICT_KERNEL_RWX
>>   select ARCH_HAS_STRICT_MODULE_RWX
>
> Looks to me like it will do the job.
>
> In passing, I noticed that, on ARM:
>
>   3 .rodata       002212b4  c0703000  c0703000  00703000  2**6
>                   CONTENTS, ALLOC, LOAD, DATA
>
> a lack of READONLY there - which suggests something in this lot isn't
> actually read-only data:
>
>         .rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {           \
>                 VMLINUX_SYMBOL(__start_rodata) = .;                     \
>                 *(.rodata) *(.rodata.*)                                 \
>                 RO_AFTER_INIT_DATA      /* Read only after init */      \
>                 KEEP(*(__vermagic))     /* Kernel version magic */      \
>                 . = ALIGN(8);                                           \
>                 VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .;         \
>                 KEEP(*(__tracepoints_ptrs)) /* Tracepoints: pointer array */ \
>                 VMLINUX_SYMBOL(__stop___tracepoints_ptrs) = .;          \
>                 *(__tracepoints_strings)/* Tracepoints: strings */      \
>         }                                                               \
>
> I suspect it's the RO_AFTER_INIT_DATA section - maybe this should be
> placed into its own separate output section?  I don't think it's doing
> any harm, it's just odd that the .rodata section is marked as a normal
> data section.

Yeah, I think the linker drops the RO flag when it see the
RO_AFTER_INIT_DATA flags. Since the kernel does the permissions
settings, this has been fine. If we can force the linker flags on it,
I'm all for it, but every time I've tried, it has defeated me. :)

-Kees

-- 
Kees Cook
Pixel Security
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From - Thu Nov 08 21:39:36 2018
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From: Matt Turner <mattst88@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.api
Subject: Re: [PATCH] prctl: implement PR_GET_ENDIAN for all architectures
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On Thu, Feb 2, 2017 at 12:12 AM, James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
> On Tue, 2017-01-31 at 16:26 -0800, Andrew Morton wrote:
>> On Sat, 28 Jan 2017 12:13:10 +0100 Helge Deller <deller@gmx.de>
>> wrote:
>>
>> > The prctl(PR_GET_ENDIAN) syscall was added to Kernel 2.6.18, but
>> > implemented for PowerPC only. This trivial patch adds support for
>> > this syscall for all other architectures.
>>
>> Seems reasonable.  I guess.  Why is this needed?
>
> I don't think it is other than for PPC.  If you're not variable endian
> (which is only PPC to date), then you should know a priori what endian
> you are from the #defines in userspace.

MIPS as well, but it seems strange to require the kernel to tell you
your endianness, when you can easily determine it yourself. Unless
there's something about this I don't understand.


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From: "Maciej W. Rozycki" <macro@linux-mips.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.api
Subject: Re: [PATCH] prctl: implement PR_GET_ENDIAN for all architectures
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On Sun, 5 Feb 2017, Matt Turner wrote:

> > I don't think it is other than for PPC.  If you're not variable endian
> > (which is only PPC to date), then you should know a priori what endian
> > you are from the #defines in userspace.
> 
> MIPS as well, but it seems strange to require the kernel to tell you
> your endianness, when you can easily determine it yourself. Unless
> there's something about this I don't understand.

 Many MIPS processors do have a reverse-endian control bit, which allows a 
user process to execute in the endianness opposite to the endianness the 
kernel runs in.  The feature has been around since 1991 and the R4000 CPU, 
however support is unlikely to be ever added to the MIPS/Linux port, due 
to the complexity required for byte-swapping all the data structures 
passed in memory between the kernel and the userland.  Does the PPC/Linux 
port actually implement this swapping?

  Maciej


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Subject: Re: [PATCHv2 1/2] arch: Move CONFIG_DEBUG_RODATA and
 CONFIG_SET_MODULE_RONX to be common
Date: Mon, 6 Feb 2017 10:47:45 -0800
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To: Kees Cook <keescook@chromium.org>,
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On 02/03/2017 01:08 PM, Kees Cook wrote:
> On Fri, Feb 3, 2017 at 12:29 PM, Russell King - ARM Linux
> <linux@armlinux.org.uk> wrote:
>> On Fri, Feb 03, 2017 at 11:45:56AM -0800, Kees Cook wrote:
>>> On Fri, Feb 3, 2017 at 9:52 AM, Laura Abbott <labbott@redhat.com> wrote:
>>>> diff --git a/arch/Kconfig b/arch/Kconfig
>>>> index 99839c2..22ee01e 100644
>>>> --- a/arch/Kconfig
>>>> +++ b/arch/Kconfig
>>>> @@ -781,4 +781,32 @@ config VMAP_STACK
>>>>           the stack to map directly to the KASAN shadow map using a formula
>>>>           that is incorrect if the stack is in vmalloc space.
>>>>
>>>> +config ARCH_NO_STRICT_RWX_DEFAULTS
>>>> +       def_bool n
>>>> +
>>>> +config ARCH_HAS_STRICT_KERNEL_RWX
>>>> +       def_bool n
>>>> +
>>>> +config DEBUG_RODATA
>>>> +       def_bool y if !ARCH_NO_STRICT_RWX_DEFAULTS
>>>> +       prompt "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS
>>>
>>> Ah! Yes, perfect. I totally forgot about using conditional "prompt"
>>> lines. Nice!
>>
>> It's no different from the more usual:
>>
>>         bool "Make kernel text and rodata read-only" if ARCH_NO_STRICT_RWX_DEFAULTS
>>         default y if !ARCH_NO_STRICT_RWX_DEFAULTS
>>         depends on ARCH_HAS_STRICT_KERNEL_RWX
>>
>> But... I really don't like this - way too many negations and negatives
>> which make it difficult to figure out what's going on here.
>>
>> The situation we have today is:
>>
>> -config DEBUG_RODATA
>> -       bool "Make kernel text and rodata read-only"
>> -       depends on MMU && !XIP_KERNEL
>> -       default y if CPU_V7
>>
>> which is "allow the user to select DEBUG_RODATA if building a MMU non-XIP
>> kernel", suggesting that the user turns it on for ARMv7 CPUs.
>>
>> That changes with this and the above:
>>
>> +       select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
>> +       select ARCH_HAS_STRICT_MODULE_RWX if MMU
>> +       select ARCH_NO_STRICT_RWX_DEFAULTS if !CPU_V7
>>
>> This means that ARCH_HAS_STRICT_KERNEL_RWX is set for a MMU non-XIP
>> kernel, which carries the same pre-condition for DEBUG_RODATA - no
>> problem there.
>>
>> However, ARCH_NO_STRICT_RWX_DEFAULTS is set for non-ARMv7 CPUs, which
>> means the "Make kernel text and rodata read-only" prompt _is_ provided
>> for those.  However, for all ARMv7 systems, we go from "suggesting that
>> the user enables the option" to "you don't have a choice, you get this
>> whether you want it or not."
>>
>> I'd prefer to keep it off for my development systems, where I don't
>> care about kernel security.  If we don't wish to do that as a general
>> rule, can we make it dependent on EMBEDDED?
>>
>> Given that on ARM it can add up to 4MB to the kernel image - there
>> _will_ be about 1MB before the .text section, the padding on between
>> __modver and __ex_table which for me is around 626k, the padding
>> between .notes and the init sections start with .vectors (the space
>> between __ex_table and end of .notes is only 4124, which gets padded
>> up to 1MB) and lastly the padding between the .init section and the
>> data section (for me around 593k).  This all adds up to an increase
>> in kernel image size of 3.2MB on 14.2MB - an increase of 22%.
>>
>> So no, I'm really not happy with that.
> 
> Ah yeah, good point. We have three cases: unsupported, mandatory,
> optional, but we have the case of setting the default for the optional
> case. Maybe something like this?
> 
> config STRICT_KERNEL_RWX
>   bool "Make kernel text and rodata read-only" if ARCH_OPTIONAL_KERNEL_RWX
>   depends on ARCH_HAS_STRICT_KERNEL_RWX
>   default ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
> 
> unsupported:
> !ARCH_HAS_STRICT_KERNEL_RWX
> 
> mandatory:
> ARCH_HAS_STRICT_KERNEL_RWX
> !ARCH_OPTIONAL_KERNEL_RWX
> 
> optional:
> ARCH_HAS_STRICT_KERNEL_RWX
> ARCH_OPTIONAL_KERNEL_RWX
> with default controlled by ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
> 
> Then arm is:
>   select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
>   select ARCH_HAS_STRICT_MODULE_RWX if MMU
>   select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
>   select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT if CPU_V7
> 
> x86 and arm64 are:
>   select ARCH_HAS_STRICT_KERNEL_RWX
>   select ARCH_HAS_STRICT_MODULE_RWX
> 
> ?
> 
> -Kees
> 

Yes, that looks good. I wanted it to be mandatory to avoid the
mindset of "optional means we don't need it" but I see there
are some cases where it's better to turn it off. I'll see if
I can emphasize this properly in the help text ("Say Y here
unless you love security exploits running in production")

Thanks,
Laura


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Subject: Re: [PATCHv2 2/2] arch: Rename CONFIG_DEBUG_RODATA and
 CONFIG_DEBUG_MODULE_RONX
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Cc: Jason Wessel <jason.wessel@windriver.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
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To: Kees Cook <keescook@chromium.org>
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On 02/03/2017 12:03 PM, Kees Cook wrote:
> On Fri, Feb 3, 2017 at 9:52 AM, Laura Abbott <labbott@redhat.com> wrote:
>>
>> Both of these options are poorly named. The features they provide are
>> necessary for system security and should not be considered debug only.
>> Change the name to something that accurately describes what these
>> options do.
> 
> It may help to explicitly call out the name change from/to in the
> commit message.
> 
>>
>> Signed-off-by: Laura Abbott <labbott@redhat.com>
>> ---
>> [...]
>> diff --git a/arch/arm/configs/aspeed_g4_defconfig b/arch/arm/configs/aspeed_g4_defconfig
>> index ca39c04..beea2cc 100644
>> --- a/arch/arm/configs/aspeed_g4_defconfig
>> +++ b/arch/arm/configs/aspeed_g4_defconfig
>> @@ -25,7 +25,6 @@ CONFIG_MODULE_UNLOAD=y
>>  # CONFIG_ARCH_MULTI_V7 is not set
>>  CONFIG_ARCH_ASPEED=y
>>  CONFIG_MACH_ASPEED_G4=y
>> -CONFIG_DEBUG_RODATA=y
>>  CONFIG_AEABI=y
>>  CONFIG_UACCESS_WITH_MEMCPY=y
>>  CONFIG_SECCOMP=y
> 
> Are these defconfig cases correct (dropping DEBUG_RODATA without
> adding STRICT_KERNEL_RWX)?
>

Yes, I think these need to be updated to the new config option since
these are not CPUv7


> Who should carry this series, btw?
> 

An excellent question :)

Would you be willing to carry it with Acks?

> -Kees
> 

Thanks,
Laura
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From - Thu Nov 08 21:39:37 2018
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From: Kees Cook <keescook@chromium.org>
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Subject: Re: [PATCHv2 2/2] arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX
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Cc: Jason Wessel <jason.wessel@windriver.com>,
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To: Laura Abbott <labbott@redhat.com>
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On Mon, Feb 6, 2017 at 10:49 AM, Laura Abbott <labbott@redhat.com> wrote:
> On 02/03/2017 12:03 PM, Kees Cook wrote:
>> On Fri, Feb 3, 2017 at 9:52 AM, Laura Abbott <labbott@redhat.com> wrote:
>>>
>>> Both of these options are poorly named. The features they provide are
>>> necessary for system security and should not be considered debug only.
>>> Change the name to something that accurately describes what these
>>> options do.
>>
>> It may help to explicitly call out the name change from/to in the
>> commit message.
>>
>>>
>>> Signed-off-by: Laura Abbott <labbott@redhat.com>
>>> ---
>>> [...]
>>> diff --git a/arch/arm/configs/aspeed_g4_defconfig b/arch/arm/configs/aspeed_g4_defconfig
>>> index ca39c04..beea2cc 100644
>>> --- a/arch/arm/configs/aspeed_g4_defconfig
>>> +++ b/arch/arm/configs/aspeed_g4_defconfig
>>> @@ -25,7 +25,6 @@ CONFIG_MODULE_UNLOAD=y
>>>  # CONFIG_ARCH_MULTI_V7 is not set
>>>  CONFIG_ARCH_ASPEED=y
>>>  CONFIG_MACH_ASPEED_G4=y
>>> -CONFIG_DEBUG_RODATA=y
>>>  CONFIG_AEABI=y
>>>  CONFIG_UACCESS_WITH_MEMCPY=y
>>>  CONFIG_SECCOMP=y
>>
>> Are these defconfig cases correct (dropping DEBUG_RODATA without
>> adding STRICT_KERNEL_RWX)?
>>
>
> Yes, I think these need to be updated to the new config option since
> these are not CPUv7
>
>
>> Who should carry this series, btw?
>>
>
> An excellent question :)
>
> Would you be willing to carry it with Acks?

Yeah, I can push this via the KSPP tree: it's cross-architecture, so
it seems like this should go either through my tree or through akpm's
tree.

Are the arch maintainers okay with that?

-Kees

-- 
Kees Cook
Pixel Security
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From - Thu Nov 08 21:39:37 2018
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From: Laura Abbott <labbott@redhat.com>
Newsgroups: gmane.linux.power-management.general,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.hardened.devel
Subject: [PATCHv3 0/2] Hardening configs refactor/rename
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To: Kees Cook <keescook@chromium.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.power-management.general/86232>

Hi,

This is v3 of my series to rename/refactor CONFIG_DEBUG_RODATA
and CONFIG_DEBUG_SET_MODULE_RONX. Among other objections, there shouldn't
be 'debug' in the name since these provide necessary kernel protection.

v3 mostly focuses on changing how the Kconfig dependencies work for the
refactor. Russell King requested that these options be deselectable for arm.
I also threw in some documentation on this under kernel hardening in case other
arches decide to follow suit.

The plan is for this to go through the KSPP tree so if people are okay with
this, please give Acks. I didn't take Mark Rutland's ack from before since
there's been a bit of refactoring.

Thanks,
Laura

Laura Abbott (2):
  arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be common
  arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX

 Documentation/DocBook/kgdb.tmpl            |  8 +++----
 Documentation/security/self-protection.txt | 10 +++++++--
 arch/Kconfig                               | 34 ++++++++++++++++++++++++++++++
 arch/arm/Kconfig                           |  4 ++++
 arch/arm/Kconfig.debug                     | 11 ----------
 arch/arm/configs/aspeed_g4_defconfig       |  4 ++--
 arch/arm/configs/aspeed_g5_defconfig       |  4 ++--
 arch/arm/include/asm/cacheflush.h          |  2 +-
 arch/arm/kernel/patch.c                    |  4 ++--
 arch/arm/kernel/vmlinux.lds.S              |  8 +++----
 arch/arm/mm/Kconfig                        | 14 +-----------
 arch/arm/mm/init.c                         |  4 ++--
 arch/arm64/Kconfig                         |  5 ++---
 arch/arm64/Kconfig.debug                   | 13 +-----------
 arch/arm64/kernel/insn.c                   |  2 +-
 arch/parisc/Kconfig                        |  1 +
 arch/parisc/Kconfig.debug                  | 11 ----------
 arch/parisc/configs/712_defconfig          |  1 -
 arch/parisc/configs/c3000_defconfig        |  1 -
 arch/parisc/mm/init.c                      |  2 +-
 arch/s390/Kconfig                          |  5 ++---
 arch/s390/Kconfig.debug                    |  3 ---
 arch/x86/Kconfig                           |  5 ++---
 arch/x86/Kconfig.debug                     | 11 ----------
 include/linux/filter.h                     |  4 ++--
 include/linux/init.h                       |  4 ++--
 include/linux/module.h                     |  2 +-
 init/main.c                                |  4 ++--
 kernel/configs/android-recommended.config  |  2 +-
 kernel/module.c                            |  6 +++---
 kernel/power/hibernate.c                   |  2 +-
 kernel/power/power.h                       |  4 ++--
 kernel/power/snapshot.c                    |  4 ++--
 33 files changed, 90 insertions(+), 109 deletions(-)

-- 
2.7.4

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From - Thu Nov 08 21:39:37 2018
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From: Laura Abbott <labbott@redhat.com>
Newsgroups: gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.kernel.hardened.devel
Subject: [PATCHv3 1/2] arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be common
Date: Mon,  6 Feb 2017 16:31:57 -0800
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Approved: news@gmane.org
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Cc: Laura Abbott <labbott@redhat.com>,
        Jason Wessel <jason.wessel@windriver.com>,
        Jonathan Corbet <corbet@lwn.net>, x86@kernel.org,
        Rob Herring <robh@kernel.org>,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Len Brown <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>,
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        linux-pm@vger.kernel.org, kernel-hardening@lists.openwall.com,
        Robin Murphy <robin.murphy@arm.com>
To: Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Kees Cook <keescook@chromium.org>,
        Mark Rutland <mark.rutland@arm.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.documentation/44757>


There are multiple architectures that support CONFIG_DEBUG_RODATA and
CONFIG_SET_MODULE_RONX. These options also now have the ability to be
turned off at runtime. Move these to an architecture independent
location and make these options def_bool y for almost all of those
arches.

Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v3: Make these configs selectable for arm. Include some documentation about
how the setup of the optional Kconfigs work as well. Stop spelling 'kenrel'
in prompt text.
---
 Documentation/security/self-protection.txt |  6 ++++++
 arch/Kconfig                               | 34 ++++++++++++++++++++++++++++++
 arch/arm/Kconfig                           |  4 ++++
 arch/arm/Kconfig.debug                     | 11 ----------
 arch/arm/mm/Kconfig                        | 12 -----------
 arch/arm64/Kconfig                         |  5 ++---
 arch/arm64/Kconfig.debug                   | 11 ----------
 arch/parisc/Kconfig                        |  1 +
 arch/parisc/Kconfig.debug                  | 11 ----------
 arch/s390/Kconfig                          |  5 ++---
 arch/s390/Kconfig.debug                    |  3 ---
 arch/x86/Kconfig                           |  5 ++---
 arch/x86/Kconfig.debug                     | 11 ----------
 13 files changed, 51 insertions(+), 68 deletions(-)

diff --git a/Documentation/security/self-protection.txt b/Documentation/security/self-protection.txt
index 3010576..f41dd00 100644
--- a/Documentation/security/self-protection.txt
+++ b/Documentation/security/self-protection.txt
@@ -56,6 +56,12 @@ CONFIG_DEBUG_SET_MODULE_RONX, which seek to make sure that code is not
 writable, data is not executable, and read-only data is neither writable
 nor executable.
 
+Most architectures have these options on by default and not user selectable.
+For some architectures like arm that wish to have these be selectable,
+the architecture Kconfig can select ARCH_OPTIONAL_KERNEL_RWX to enable
+a Kconfig prompt. CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT determines
+the default setting when ARCH_OPTIONAL_KERNEL_RWX is enabled.
+
 #### Function pointers and sensitive variables must not be writable
 
 Vast areas of kernel memory contain function pointers that are looked
diff --git a/arch/Kconfig b/arch/Kconfig
index 99839c2..3f8b8be 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -781,4 +781,38 @@ config VMAP_STACK
 	  the stack to map directly to the KASAN shadow map using a formula
 	  that is incorrect if the stack is in vmalloc space.
 
+config ARCH_OPTIONAL_KERNEL_RWX
+	def_bool n
+
+config ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
+	def_bool n
+
+config ARCH_HAS_STRICT_KERNEL_RWX
+	def_bool n
+
+config DEBUG_RODATA
+	bool "Make kernel text and rodata read-only" if ARCH_OPTIONAL_KERNEL_RWX
+	depends on ARCH_HAS_STRICT_KERNEL_RWX
+	default !ARCH_OPTIONAL_KERNEL_RWX || ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
+	help
+	  If this is set, kernel text and rodata memory will be made read-only,
+	  and non-text memory will be made non-executable. This provides
+	  protection against certain security exploits (e.g. executing the heap
+	  or modifying text)
+
+	  These features are considered standard security practice these days.
+	  You should say Y here in almost all cases.
+
+config ARCH_HAS_STRICT_MODULE_RWX
+	def_bool n
+
+config DEBUG_SET_MODULE_RONX
+	bool "Set loadable kernel module data as NX and text as RO" if ARCH_OPTIONAL_KERNEL_RWX
+	depends on ARCH_HAS_STRICT_MODULE_RWX && MODULES
+	default !ARCH_OPTIONAL_KERNEL_RWX || ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
+	help
+	  If this is set, module text and rodata memory will be made read-only,
+	  and non-text memory will be made non-executable. This provides
+	  protection against certain security exploits (e.g. writing to text)
+
 source "kernel/gcov/Kconfig"
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 186c4c2..8748353 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -4,10 +4,14 @@ config ARM
 	select ARCH_CLOCKSOURCE_DATA
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
+	select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
+	select ARCH_HAS_STRICT_MODULE_RWX if MMU
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_HAVE_CUSTOM_GPIO_H
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_MIGHT_HAVE_PC_PARPORT
+	select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
+	select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT if CPU_V7
 	select ARCH_SUPPORTS_ATOMIC_RMW
 	select ARCH_USE_BUILTIN_BSWAP
 	select ARCH_USE_CMPXCHG_LOCKREF
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index d83f7c3..426d271 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -1738,17 +1738,6 @@ config PID_IN_CONTEXTIDR
 	  additional instructions during context switch. Say Y here only if you
 	  are planning to use hardware trace tools with this kernel.
 
-config DEBUG_SET_MODULE_RONX
-	bool "Set loadable kernel module data as NX and text as RO"
-	depends on MODULES && MMU
-	---help---
-	  This option helps catch unintended modifications to loadable
-	  kernel module's text and read-only data. It also prevents execution
-	  of module data. Such protection may interfere with run-time code
-	  patching and dynamic kernel tracing - and they might also protect
-	  against certain classes of kernel exploits.
-	  If in doubt, say "N".
-
 source "drivers/hwtracing/coresight/Kconfig"
 
 endmenu
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index f68e8ec..419a035 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -1051,18 +1051,6 @@ config ARCH_SUPPORTS_BIG_ENDIAN
 	  This option specifies the architecture can support big endian
 	  operation.
 
-config DEBUG_RODATA
-	bool "Make kernel text and rodata read-only"
-	depends on MMU && !XIP_KERNEL
-	default y if CPU_V7
-	help
-	  If this is set, kernel text and rodata memory will be made
-	  read-only, and non-text kernel memory will be made non-executable.
-	  The tradeoff is that each region is padded to section-size (1MiB)
-	  boundaries (because their permissions are different and splitting
-	  the 1M pages into 4K ones causes TLB performance problems), which
-	  can waste memory.
-
 config DEBUG_ALIGN_RODATA
 	bool "Make rodata strictly non-executable"
 	depends on DEBUG_RODATA
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 1117421..e1efbcc 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -13,6 +13,8 @@ config ARM64
 	select ARCH_HAS_GIGANTIC_PAGE
 	select ARCH_HAS_KCOV
 	select ARCH_HAS_SG_CHAIN
+	select ARCH_HAS_STRICT_KERNEL_RWX
+	select ARCH_HAS_STRICT_MODULE_RWX
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_USE_CMPXCHG_LOCKREF
 	select ARCH_SUPPORTS_ATOMIC_RMW
@@ -123,9 +125,6 @@ config ARCH_PHYS_ADDR_T_64BIT
 config MMU
 	def_bool y
 
-config DEBUG_RODATA
-	def_bool y
-
 config ARM64_PAGE_SHIFT
 	int
 	default 16 if ARM64_64K_PAGES
diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
index d1ebd46..939815e 100644
--- a/arch/arm64/Kconfig.debug
+++ b/arch/arm64/Kconfig.debug
@@ -71,17 +71,6 @@ config DEBUG_WX
 
 	  If in doubt, say "Y".
 
-config DEBUG_SET_MODULE_RONX
-	bool "Set loadable kernel module data as NX and text as RO"
-	depends on MODULES
-	default y
-	help
-	  Is this is set, kernel module text and rodata will be made read-only.
-	  This is to help catch accidental or malicious attempts to change the
-	  kernel's executable code.
-
-	  If in doubt, say Y.
-
 config DEBUG_ALIGN_RODATA
 	depends on DEBUG_RODATA
 	bool "Align linker sections up to SECTION_SIZE"
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 3a71f38..ad294b3 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -8,6 +8,7 @@ config PARISC
 	select HAVE_SYSCALL_TRACEPOINTS
 	select ARCH_WANT_FRAME_POINTERS
 	select ARCH_HAS_ELF_RANDOMIZE
+	select ARCH_HAS_STRICT_KERNEL_RWX
 	select RTC_CLASS
 	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 68b7cbd..0d856b9 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -5,15 +5,4 @@ source "lib/Kconfig.debug"
 config TRACE_IRQFLAGS_SUPPORT
 	def_bool y
 
-config DEBUG_RODATA
-       bool "Write protect kernel read-only data structures"
-       depends on DEBUG_KERNEL
-       default y
-       help
-         Mark the kernel read-only data as write-protected in the pagetables,
-         in order to catch accidental (and incorrect) writes to such const
-         data. This option may have a slight performance impact because a
-         portion of the kernel code won't be covered by a TLB anymore.
-         If in doubt, say "N".
-
 endmenu
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c6722112..53bb0e3 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -62,9 +62,6 @@ config PCI_QUIRKS
 config ARCH_SUPPORTS_UPROBES
 	def_bool y
 
-config DEBUG_RODATA
-	def_bool y
-
 config S390
 	def_bool y
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
@@ -73,6 +70,8 @@ config S390
 	select ARCH_HAS_GIGANTIC_PAGE
 	select ARCH_HAS_KCOV
 	select ARCH_HAS_SG_CHAIN
+	select ARCH_HAS_STRICT_KERNEL_RWX
+	select ARCH_HAS_STRICT_MODULE_RWX
 	select ARCH_HAS_UBSAN_SANITIZE_ALL
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_INLINE_READ_LOCK
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index 26c5d5be..57f8ea9 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -17,7 +17,4 @@ config S390_PTDUMP
 	  kernel.
 	  If in doubt, say "N"
 
-config DEBUG_SET_MODULE_RONX
-	def_bool y
-	depends on MODULES
 endmenu
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e487493..13e1bf4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -54,6 +54,8 @@ config X86
 	select ARCH_HAS_MMIO_FLUSH
 	select ARCH_HAS_PMEM_API		if X86_64
 	select ARCH_HAS_SG_CHAIN
+	select ARCH_HAS_STRICT_KERNEL_RWX
+	select ARCH_HAS_STRICT_MODULE_RWX
 	select ARCH_HAS_UBSAN_SANITIZE_ALL
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_MIGHT_HAVE_ACPI_PDC		if ACPI
@@ -309,9 +311,6 @@ config ARCH_SUPPORTS_UPROBES
 config FIX_EARLYCON_MEM
 	def_bool y
 
-config DEBUG_RODATA
-	def_bool y
-
 config PGTABLE_LEVELS
 	int
 	default 4 if X86_64
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 67eec55..69cdd0b 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -109,17 +109,6 @@ config DEBUG_WX
 
 	  If in doubt, say "Y".
 
-config DEBUG_SET_MODULE_RONX
-	bool "Set loadable kernel module data as NX and text as RO"
-	depends on MODULES
-	---help---
-	  This option helps catch unintended modifications to loadable
-	  kernel module's text and read-only data. It also prevents execution
-	  of module data. Such protection may interfere with run-time code
-	  patching and dynamic kernel tracing - and they might also protect
-	  against certain classes of kernel exploits.
-	  If in doubt, say "N".
-
 config DEBUG_NX_TEST
 	tristate "Testcase for the NX non-executable stack feature"
 	depends on DEBUG_KERNEL && m
-- 
2.7.4

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From - Thu Nov 08 21:39:37 2018
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From: Laura Abbott <labbott@redhat.com>
Newsgroups: gmane.linux.kernel.hardened.devel,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.power-management.general
Subject: [PATCHv3 2/2] arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX
Date: Mon,  6 Feb 2017 16:31:58 -0800
Lines: 491
Approved: news@gmane.org
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Cc: Laura Abbott <labbott@redhat.com>,
	Jason Wessel <jason.wessel@windriver.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Russell King <linux@armlinux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org,
	Rob Herring <robh@kernel.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Len Brown <len.brown@intel.com>,
	Pavel Machek <pavel@ucw.cz>,
	Mark Rutland <mark.rutland@arm.com>,
	Jessica Yu <jeyu@redhat.com>,
	linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-parisc@vger.kernel.org,
	linux-s390@vger.kernel.org,
	li
To: Kees Cook <keescook@chromium.org>
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Xref: news.gmane.org gmane.linux.kernel.hardened.devel:5512 gmane.linux.documentation:44758 gmane.linux.kernel:2405047 gmane.linux.ports.arm.kernel:557317 gmane.linux.ports.parisc:27266 gmane.linux.power-management.general:86234
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.hardened.devel/5512>

Both of these options are poorly named. The features they provide are
necessary for system security and should not be considered debug only.
Change the names to CONFIG_STRICT_KERNEL_RWX and
CONFIG_STRICT_MODULE_RWX to better describe what these options do.

Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v3: Minor config text tweek per Kees. Corrected the change of config names in
the arm config files.
---
 Documentation/DocBook/kgdb.tmpl            | 8 ++++----
 Documentation/security/self-protection.txt | 4 ++--
 arch/Kconfig                               | 4 ++--
 arch/arm/configs/aspeed_g4_defconfig       | 4 ++--
 arch/arm/configs/aspeed_g5_defconfig       | 4 ++--
 arch/arm/include/asm/cacheflush.h          | 2 +-
 arch/arm/kernel/patch.c                    | 4 ++--
 arch/arm/kernel/vmlinux.lds.S              | 8 ++++----
 arch/arm/mm/Kconfig                        | 2 +-
 arch/arm/mm/init.c                         | 4 ++--
 arch/arm64/Kconfig.debug                   | 2 +-
 arch/arm64/kernel/insn.c                   | 2 +-
 arch/parisc/configs/712_defconfig          | 1 -
 arch/parisc/configs/c3000_defconfig        | 1 -
 arch/parisc/mm/init.c                      | 2 +-
 include/linux/filter.h                     | 4 ++--
 include/linux/init.h                       | 4 ++--
 include/linux/module.h                     | 2 +-
 init/main.c                                | 4 ++--
 kernel/configs/android-recommended.config  | 2 +-
 kernel/module.c                            | 6 +++---
 kernel/power/hibernate.c                   | 2 +-
 kernel/power/power.h                       | 4 ++--
 kernel/power/snapshot.c                    | 4 ++--
 24 files changed, 41 insertions(+), 43 deletions(-)

diff --git a/Documentation/DocBook/kgdb.tmpl b/Documentation/DocBook/kgdb.tmpl
index f3abca7..856ac20 100644
--- a/Documentation/DocBook/kgdb.tmpl
+++ b/Documentation/DocBook/kgdb.tmpl
@@ -115,12 +115,12 @@
     </para>
     <para>
     If the architecture that you are using supports the kernel option
-    CONFIG_DEBUG_RODATA, you should consider turning it off.  This
+    CONFIG_STRICT_KERNEL_RWX, you should consider turning it off.  This
     option will prevent the use of software breakpoints because it
     marks certain regions of the kernel's memory space as read-only.
     If kgdb supports it for the architecture you are using, you can
     use hardware breakpoints if you desire to run with the
-    CONFIG_DEBUG_RODATA option turned on, else you need to turn off
+    CONFIG_STRICT_KERNEL_RWX option turned on, else you need to turn off
     this option.
     </para>
     <para>
@@ -135,7 +135,7 @@
     <para>Here is an example set of .config symbols to enable or
     disable for kgdb:
     <itemizedlist>
-    <listitem><para># CONFIG_DEBUG_RODATA is not set</para></listitem>
+    <listitem><para># CONFIG_STRICT_KERNEL_RWX is not set</para></listitem>
     <listitem><para>CONFIG_FRAME_POINTER=y</para></listitem>
     <listitem><para>CONFIG_KGDB=y</para></listitem>
     <listitem><para>CONFIG_KGDB_SERIAL_CONSOLE=y</para></listitem>
@@ -166,7 +166,7 @@
     </para>
     <para>Here is an example set of .config symbols to enable/disable kdb:
     <itemizedlist>
-    <listitem><para># CONFIG_DEBUG_RODATA is not set</para></listitem>
+    <listitem><para># CONFIG_STRICT_KERNEL_RWX is not set</para></listitem>
     <listitem><para>CONFIG_FRAME_POINTER=y</para></listitem>
     <listitem><para>CONFIG_KGDB=y</para></listitem>
     <listitem><para>CONFIG_KGDB_SERIAL_CONSOLE=y</para></listitem>
diff --git a/Documentation/security/self-protection.txt b/Documentation/security/self-protection.txt
index f41dd00..141acfe 100644
--- a/Documentation/security/self-protection.txt
+++ b/Documentation/security/self-protection.txt
@@ -51,8 +51,8 @@ kernel, they are implemented in a way where the memory is temporarily
 made writable during the update, and then returned to the original
 permissions.)
 
-In support of this are (the poorly named) CONFIG_DEBUG_RODATA and
-CONFIG_DEBUG_SET_MODULE_RONX, which seek to make sure that code is not
+In support of this are CONFIG_STRICT_KERNEL_RWX and
+CONFIG_STRICT_MODULE_RWX, which seek to make sure that code is not
 writable, data is not executable, and read-only data is neither writable
 nor executable.
 
diff --git a/arch/Kconfig b/arch/Kconfig
index 3f8b8be..33f5a55 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -790,7 +790,7 @@ config ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
 config ARCH_HAS_STRICT_KERNEL_RWX
 	def_bool n
 
-config DEBUG_RODATA
+config STRICT_KERNEL_RWX
 	bool "Make kernel text and rodata read-only" if ARCH_OPTIONAL_KERNEL_RWX
 	depends on ARCH_HAS_STRICT_KERNEL_RWX
 	default !ARCH_OPTIONAL_KERNEL_RWX || ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
@@ -806,7 +806,7 @@ config DEBUG_RODATA
 config ARCH_HAS_STRICT_MODULE_RWX
 	def_bool n
 
-config DEBUG_SET_MODULE_RONX
+config STRICT_MODULE_RWX
 	bool "Set loadable kernel module data as NX and text as RO" if ARCH_OPTIONAL_KERNEL_RWX
 	depends on ARCH_HAS_STRICT_MODULE_RWX && MODULES
 	default !ARCH_OPTIONAL_KERNEL_RWX || ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
diff --git a/arch/arm/configs/aspeed_g4_defconfig b/arch/arm/configs/aspeed_g4_defconfig
index ca39c04..05b99bc 100644
--- a/arch/arm/configs/aspeed_g4_defconfig
+++ b/arch/arm/configs/aspeed_g4_defconfig
@@ -25,7 +25,6 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_ARCH_MULTI_V7 is not set
 CONFIG_ARCH_ASPEED=y
 CONFIG_MACH_ASPEED_G4=y
-CONFIG_DEBUG_RODATA=y
 CONFIG_AEABI=y
 CONFIG_UACCESS_WITH_MEMCPY=y
 CONFIG_SECCOMP=y
@@ -79,7 +78,8 @@ CONFIG_DEBUG_LL_UART_8250=y
 CONFIG_DEBUG_UART_PHYS=0x1e784000
 CONFIG_DEBUG_UART_VIRT=0xe8784000
 CONFIG_EARLY_PRINTK=y
-CONFIG_DEBUG_SET_MODULE_RONX=y
+CONFIG_STRICT_MODULE_RWX=y
+CONFIG_STRICT_KERNEL_RWX=y
 # CONFIG_XZ_DEC_X86 is not set
 # CONFIG_XZ_DEC_POWERPC is not set
 # CONFIG_XZ_DEC_IA64 is not set
diff --git a/arch/arm/configs/aspeed_g5_defconfig b/arch/arm/configs/aspeed_g5_defconfig
index 4f366b0..05a16d5 100644
--- a/arch/arm/configs/aspeed_g5_defconfig
+++ b/arch/arm/configs/aspeed_g5_defconfig
@@ -26,7 +26,6 @@ CONFIG_ARCH_MULTI_V6=y
 # CONFIG_ARCH_MULTI_V7 is not set
 CONFIG_ARCH_ASPEED=y
 CONFIG_MACH_ASPEED_G5=y
-CONFIG_DEBUG_RODATA=y
 CONFIG_AEABI=y
 CONFIG_UACCESS_WITH_MEMCPY=y
 CONFIG_SECCOMP=y
@@ -81,7 +80,8 @@ CONFIG_DEBUG_LL_UART_8250=y
 CONFIG_DEBUG_UART_PHYS=0x1e784000
 CONFIG_DEBUG_UART_VIRT=0xe8784000
 CONFIG_EARLY_PRINTK=y
-CONFIG_DEBUG_SET_MODULE_RONX=y
+CONFIG_STRICT_MODULE_RWX=y
+CONFIG_STRICT_KERNEL_RWX=y
 # CONFIG_XZ_DEC_X86 is not set
 # CONFIG_XZ_DEC_POWERPC is not set
 # CONFIG_XZ_DEC_IA64 is not set
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index bdd283b..02454fa 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -490,7 +490,7 @@ static inline int set_memory_x(unsigned long addr, int numpages) { return 0; }
 static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; }
 #endif
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 void set_kernel_text_rw(void);
 void set_kernel_text_ro(void);
 #else
diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c
index 69bda1a..020560b 100644
--- a/arch/arm/kernel/patch.c
+++ b/arch/arm/kernel/patch.c
@@ -24,9 +24,9 @@ static void __kprobes *patch_map(void *addr, int fixmap, unsigned long *flags)
 	bool module = !core_kernel_text(uintaddr);
 	struct page *page;
 
-	if (module && IS_ENABLED(CONFIG_DEBUG_SET_MODULE_RONX))
+	if (module && IS_ENABLED(CONFIG_STRICT_MODULE_RWX))
 		page = vmalloc_to_page(addr);
-	else if (!module && IS_ENABLED(CONFIG_DEBUG_RODATA))
+	else if (!module && IS_ENABLED(CONFIG_STRICT_KERNEL_RWX))
 		page = virt_to_page(addr);
 	else
 		return addr;
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index f7f55df..ce18007 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -97,7 +97,7 @@ SECTIONS
 		HEAD_TEXT
 	}
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 	. = ALIGN(1<<SECTION_SHIFT);
 #endif
 
@@ -158,7 +158,7 @@ SECTIONS
 
 	NOTES
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 	. = ALIGN(1<<SECTION_SHIFT);
 #else
 	. = ALIGN(PAGE_SIZE);
@@ -230,7 +230,7 @@ SECTIONS
 	PERCPU_SECTION(L1_CACHE_BYTES)
 #endif
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 	. = ALIGN(1<<SECTION_SHIFT);
 #else
 	. = ALIGN(THREAD_SIZE);
@@ -325,7 +325,7 @@ SECTIONS
 	STABS_DEBUG
 }
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 /*
  * Without CONFIG_DEBUG_ALIGN_RODATA, __start_rodata_section_aligned will
  * be the first section-aligned location after __start_rodata. Otherwise,
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 419a035..35e3a56 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -1053,7 +1053,7 @@ config ARCH_SUPPORTS_BIG_ENDIAN
 
 config DEBUG_ALIGN_RODATA
 	bool "Make rodata strictly non-executable"
-	depends on DEBUG_RODATA
+	depends on STRICT_KERNEL_RWX
 	default y
 	help
 	  If this is set, rodata will be made explicitly non-executable. This
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 370581a..4be0bee 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -572,7 +572,7 @@ void __init mem_init(void)
 	}
 }
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 struct section_perm {
 	const char *name;
 	unsigned long start;
@@ -741,7 +741,7 @@ void set_kernel_text_ro(void)
 
 #else
 static inline void fix_kernmem_perms(void) { }
-#endif /* CONFIG_DEBUG_RODATA */
+#endif /* CONFIG_STRICT_KERNEL_RWX */
 
 void free_tcmmem(void)
 {
diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug
index 939815e..560a8d8 100644
--- a/arch/arm64/Kconfig.debug
+++ b/arch/arm64/Kconfig.debug
@@ -72,7 +72,7 @@ config DEBUG_WX
 	  If in doubt, say "Y".
 
 config DEBUG_ALIGN_RODATA
-	depends on DEBUG_RODATA
+	depends on STRICT_KERNEL_RWX
 	bool "Align linker sections up to SECTION_SIZE"
 	help
 	  If this option is enabled, sections that may potentially be marked as
diff --git a/arch/arm64/kernel/insn.c b/arch/arm64/kernel/insn.c
index 94b62c1..67f9cb9 100644
--- a/arch/arm64/kernel/insn.c
+++ b/arch/arm64/kernel/insn.c
@@ -93,7 +93,7 @@ static void __kprobes *patch_map(void *addr, int fixmap)
 	bool module = !core_kernel_text(uintaddr);
 	struct page *page;
 
-	if (module && IS_ENABLED(CONFIG_DEBUG_SET_MODULE_RONX))
+	if (module && IS_ENABLED(CONFIG_STRICT_MODULE_RWX))
 		page = vmalloc_to_page(addr);
 	else if (!module)
 		page = pfn_to_page(PHYS_PFN(__pa(addr)));
diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig
index db8f56b..143d026 100644
--- a/arch/parisc/configs/712_defconfig
+++ b/arch/parisc/configs/712_defconfig
@@ -182,7 +182,6 @@ CONFIG_DEBUG_FS=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
 # CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_DEBUG_RODATA=y
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_HMAC=y
diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index fb92b89..8e8f0e3 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -166,7 +166,6 @@ CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
 # CONFIG_DEBUG_BUGVERBOSE is not set
 # CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_DEBUG_RODATA=y
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_MD5=m
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index e02ada3..a055e5b 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -545,7 +545,7 @@ void free_initmem(void)
 }
 
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 void mark_rodata_ro(void)
 {
 	/* rodata memory was already mapped with KERNEL_RO access rights by
diff --git a/include/linux/filter.h b/include/linux/filter.h
index e4eb254..c2d2827 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -545,7 +545,7 @@ static inline bool bpf_prog_was_classic(const struct bpf_prog *prog)
 
 #define bpf_classic_proglen(fprog) (fprog->len * sizeof(fprog->filter[0]))
 
-#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+#ifdef CONFIG_STRICT_MODULE_RWX
 static inline void bpf_prog_lock_ro(struct bpf_prog *fp)
 {
 	set_memory_ro((unsigned long)fp, fp->pages);
@@ -563,7 +563,7 @@ static inline void bpf_prog_lock_ro(struct bpf_prog *fp)
 static inline void bpf_prog_unlock_ro(struct bpf_prog *fp)
 {
 }
-#endif /* CONFIG_DEBUG_SET_MODULE_RONX */
+#endif /* CONFIG_STRICT_MODULE_RWX */
 
 int sk_filter_trim_cap(struct sock *sk, struct sk_buff *skb, unsigned int cap);
 static inline int sk_filter(struct sock *sk, struct sk_buff *skb)
diff --git a/include/linux/init.h b/include/linux/init.h
index 885c3e6..79af096 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -126,10 +126,10 @@ void prepare_namespace(void);
 void __init load_default_modules(void);
 int __init init_rootfs(void);
 
-#if defined(CONFIG_DEBUG_RODATA) || defined(CONFIG_DEBUG_SET_MODULE_RONX)
+#if defined(CONFIG_STRICT_KERNEL_RWX) || defined(CONFIG_STRICT_MODULE_RWX)
 extern bool rodata_enabled;
 #endif
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 void mark_rodata_ro(void);
 #endif
 
diff --git a/include/linux/module.h b/include/linux/module.h
index cc7cba2..e270da2 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -764,7 +764,7 @@ extern int module_sysfs_initialized;
 
 #define __MODULE_STRING(x) __stringify(x)
 
-#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+#ifdef CONFIG_STRICT_MODULE_RWX
 extern void set_all_modules_text_rw(void);
 extern void set_all_modules_text_ro(void);
 extern void module_enable_ro(const struct module *mod, bool after_init);
diff --git a/init/main.c b/init/main.c
index b0c9d6f..0b7bae2 100644
--- a/init/main.c
+++ b/init/main.c
@@ -925,7 +925,7 @@ static int try_to_run_init_process(const char *init_filename)
 
 static noinline void __init kernel_init_freeable(void);
 
-#if defined(CONFIG_DEBUG_RODATA) || defined(CONFIG_DEBUG_SET_MODULE_RONX)
+#if defined(CONFIG_STRICT_KERNEL_RWX) || defined(CONFIG_STRICT_MODULE_RWX)
 bool rodata_enabled __ro_after_init = true;
 static int __init set_debug_rodata(char *str)
 {
@@ -934,7 +934,7 @@ static int __init set_debug_rodata(char *str)
 __setup("rodata=", set_debug_rodata);
 #endif
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 static void mark_readonly(void)
 {
 	if (rodata_enabled)
diff --git a/kernel/configs/android-recommended.config b/kernel/configs/android-recommended.config
index 297756b..99127ed 100644
--- a/kernel/configs/android-recommended.config
+++ b/kernel/configs/android-recommended.config
@@ -11,7 +11,7 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=8192
 CONFIG_COMPACTION=y
-CONFIG_DEBUG_RODATA=y
+CONFIG_STRICT_KERNEL_RWX=y
 CONFIG_DM_CRYPT=y
 CONFIG_DM_UEVENT=y
 CONFIG_DM_VERITY=y
diff --git a/kernel/module.c b/kernel/module.c
index 3d8f126..58856a4 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -74,9 +74,9 @@
 /*
  * Modules' sections will be aligned on page boundaries
  * to ensure complete separation of code and data, but
- * only when CONFIG_DEBUG_SET_MODULE_RONX=y
+ * only when CONFIG_STRICT_MODULE_RWX=y
  */
-#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+#ifdef CONFIG_STRICT_MODULE_RWX
 # define debug_align(X) ALIGN(X, PAGE_SIZE)
 #else
 # define debug_align(X) (X)
@@ -1844,7 +1844,7 @@ static void mod_sysfs_teardown(struct module *mod)
 	mod_sysfs_fini(mod);
 }
 
-#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+#ifdef CONFIG_STRICT_MODULE_RWX
 /*
  * LKM RO/NX protection: protect module's text/ro-data
  * from modification and any data from execution.
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index b26dbc4..86385af 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -1156,7 +1156,7 @@ static int __init hibernate_setup(char *str)
 	} else if (!strncmp(str, "no", 2)) {
 		noresume = 1;
 		nohibernate = 1;
-	} else if (IS_ENABLED(CONFIG_DEBUG_RODATA)
+	} else if (IS_ENABLED(CONFIG_STRICT_KERNEL_RWX)
 		   && !strncmp(str, "protect_image", 13)) {
 		enable_restore_image_protection();
 	}
diff --git a/kernel/power/power.h b/kernel/power/power.h
index 1dfa0da..7fdc40d 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -61,12 +61,12 @@ extern int hibernation_snapshot(int platform_mode);
 extern int hibernation_restore(int platform_mode);
 extern int hibernation_platform_enter(void);
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 /* kernel/power/snapshot.c */
 extern void enable_restore_image_protection(void);
 #else
 static inline void enable_restore_image_protection(void) {}
-#endif /* CONFIG_DEBUG_RODATA */
+#endif /* CONFIG_STRICT_KERNEL_RWX */
 
 #else /* !CONFIG_HIBERNATION */
 
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 2d8e2b2..905d5bb 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -38,7 +38,7 @@
 
 #include "power.h"
 
-#ifdef CONFIG_DEBUG_RODATA
+#ifdef CONFIG_STRICT_KERNEL_RWX
 static bool hibernate_restore_protection;
 static bool hibernate_restore_protection_active;
 
@@ -73,7 +73,7 @@ static inline void hibernate_restore_protection_begin(void) {}
 static inline void hibernate_restore_protection_end(void) {}
 static inline void hibernate_restore_protect_page(void *page_address) {}
 static inline void hibernate_restore_unprotect_page(void *page_address) {}
-#endif /* CONFIG_DEBUG_RODATA */
+#endif /* CONFIG_STRICT_KERNEL_RWX */
 
 static int swsusp_page_is_free(struct page *);
 static void swsusp_set_page_forbidden(struct page *);
-- 
2.7.4



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Subject: Re: [PATCHv3 1/2] arch: Move CONFIG_DEBUG_RODATA and
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* Laura Abbott <labbott@redhat.com> wrote:

> 
> There are multiple architectures that support CONFIG_DEBUG_RODATA and
> CONFIG_SET_MODULE_RONX. These options also now have the ability to be
> turned off at runtime. Move these to an architecture independent
> location and make these options def_bool y for almost all of those
> arches.
> 
> Signed-off-by: Laura Abbott <labbott@redhat.com>
> ---
> v3: Make these configs selectable for arm. Include some documentation about
> how the setup of the optional Kconfigs work as well. Stop spelling 'kenrel'
> in prompt text.
> ---
>  Documentation/security/self-protection.txt |  6 ++++++
>  arch/Kconfig                               | 34 ++++++++++++++++++++++++++++++
>  arch/arm/Kconfig                           |  4 ++++
>  arch/arm/Kconfig.debug                     | 11 ----------
>  arch/arm/mm/Kconfig                        | 12 -----------
>  arch/arm64/Kconfig                         |  5 ++---
>  arch/arm64/Kconfig.debug                   | 11 ----------
>  arch/parisc/Kconfig                        |  1 +
>  arch/parisc/Kconfig.debug                  | 11 ----------
>  arch/s390/Kconfig                          |  5 ++---
>  arch/s390/Kconfig.debug                    |  3 ---
>  arch/x86/Kconfig                           |  5 ++---
>  arch/x86/Kconfig.debug                     | 11 ----------
>  13 files changed, 51 insertions(+), 68 deletions(-)

Acked-by: Ingo Molnar <mingo@kernel.org>

Thanks,

	Ingo
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On Mon 2017-02-06 10:47:45, Laura Abbott wrote:
> On 02/03/2017 01:08 PM, Kees Cook wrote:
> > On Fri, Feb 3, 2017 at 12:29 PM, Russell King - ARM Linux
> > <linux@armlinux.org.uk> wrote:
> >> On Fri, Feb 03, 2017 at 11:45:56AM -0800, Kees Cook wrote:
> >>> On Fri, Feb 3, 2017 at 9:52 AM, Laura Abbott <labbott@redhat.com> wro=
te:
> >>>> diff --git a/arch/Kconfig b/arch/Kconfig
> >>>> index 99839c2..22ee01e 100644
> >>>> --- a/arch/Kconfig
> >>>> +++ b/arch/Kconfig
> >>>> @@ -781,4 +781,32 @@ config VMAP_STACK
> >>>>           the stack to map directly to the KASAN shadow map using a =
formula
> >>>>           that is incorrect if the stack is in vmalloc space.
> >>>>
> >>>> +config ARCH_NO_STRICT_RWX_DEFAULTS
> >>>> +       def_bool n
> >>>> +
> >>>> +config ARCH_HAS_STRICT_KERNEL_RWX
> >>>> +       def_bool n
> >>>> +
> >>>> +config DEBUG_RODATA
> >>>> +       def_bool y if !ARCH_NO_STRICT_RWX_DEFAULTS
> >>>> +       prompt "Make kernel text and rodata read-only" if ARCH_NO_ST=
RICT_RWX_DEFAULTS
> >>>
> >>> Ah! Yes, perfect. I totally forgot about using conditional "prompt"
> >>> lines. Nice!
> >>
> >> It's no different from the more usual:
> >>
> >>         bool "Make kernel text and rodata read-only" if ARCH_NO_STRICT=
_RWX_DEFAULTS
> >>         default y if !ARCH_NO_STRICT_RWX_DEFAULTS
> >>         depends on ARCH_HAS_STRICT_KERNEL_RWX
> >>
> >> But... I really don't like this - way too many negations and negatives
> >> which make it difficult to figure out what's going on here.
> >>
> >> The situation we have today is:
> >>
> >> -config DEBUG_RODATA
> >> -       bool "Make kernel text and rodata read-only"
> >> -       depends on MMU && !XIP_KERNEL
> >> -       default y if CPU_V7
> >>
> >> which is "allow the user to select DEBUG_RODATA if building a MMU non-=
XIP
> >> kernel", suggesting that the user turns it on for ARMv7 CPUs.
> >>
> >> That changes with this and the above:
> >>
> >> +       select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
> >> +       select ARCH_HAS_STRICT_MODULE_RWX if MMU
> >> +       select ARCH_NO_STRICT_RWX_DEFAULTS if !CPU_V7
> >>
> >> This means that ARCH_HAS_STRICT_KERNEL_RWX is set for a MMU non-XIP
> >> kernel, which carries the same pre-condition for DEBUG_RODATA - no
> >> problem there.
> >>
> >> However, ARCH_NO_STRICT_RWX_DEFAULTS is set for non-ARMv7 CPUs, which
> >> means the "Make kernel text and rodata read-only" prompt _is_ provided
> >> for those.  However, for all ARMv7 systems, we go from "suggesting that
> >> the user enables the option" to "you don't have a choice, you get this
> >> whether you want it or not."
> >>
> >> I'd prefer to keep it off for my development systems, where I don't
> >> care about kernel security.  If we don't wish to do that as a general
> >> rule, can we make it dependent on EMBEDDED?
> >>
> >> Given that on ARM it can add up to 4MB to the kernel image - there
> >> _will_ be about 1MB before the .text section, the padding on between
> >> __modver and __ex_table which for me is around 626k, the padding
> >> between .notes and the init sections start with .vectors (the space
> >> between __ex_table and end of .notes is only 4124, which gets padded
> >> up to 1MB) and lastly the padding between the .init section and the
> >> data section (for me around 593k).  This all adds up to an increase
> >> in kernel image size of 3.2MB on 14.2MB - an increase of 22%.
> >>
> >> So no, I'm really not happy with that.
> >=20
> > Ah yeah, good point. We have three cases: unsupported, mandatory,
> > optional, but we have the case of setting the default for the optional
> > case. Maybe something like this?
> >=20
> > config STRICT_KERNEL_RWX
> >   bool "Make kernel text and rodata read-only" if ARCH_OPTIONAL_KERNEL_=
RWX
> >   depends on ARCH_HAS_STRICT_KERNEL_RWX
> >   default ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
> >=20
> > unsupported:
> > !ARCH_HAS_STRICT_KERNEL_RWX
> >=20
> > mandatory:
> > ARCH_HAS_STRICT_KERNEL_RWX
> > !ARCH_OPTIONAL_KERNEL_RWX
> >=20
> > optional:
> > ARCH_HAS_STRICT_KERNEL_RWX
> > ARCH_OPTIONAL_KERNEL_RWX
> > with default controlled by ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
> >=20
> > Then arm is:
> >   select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
> >   select ARCH_HAS_STRICT_MODULE_RWX if MMU
> >   select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
> >   select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT if CPU_V7
> >=20
> > x86 and arm64 are:
> >   select ARCH_HAS_STRICT_KERNEL_RWX
> >   select ARCH_HAS_STRICT_MODULE_RWX
> >=20
> > ?
> >=20
> > -Kees
> >=20
>=20
> Yes, that looks good. I wanted it to be mandatory to avoid the
> mindset of "optional means we don't need it" but I see there
> are some cases where it's better to turn it off. I'll see if
> I can emphasize this properly in the help text ("Say Y here
> unless you love security exploits running in production")

What about fixing the memory wastage, instead? If you want something
almost-always-on, it should not waste megabytes of memory.

And BTW it is help text, not advertising for your favourite feature.
									Pavel

--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
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From - Thu Nov 08 21:39:37 2018
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Newsgroups: gmane.linux.power-management.general,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.hardened.devel
Subject: Re: [PATCHv3 1/2] arch: Move CONFIG_DEBUG_RODATA and
 CONFIG_SET_MODULE_RONX to be common
Date: Tue, 7 Feb 2017 12:42:11 +0100
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Cc: Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Kees Cook <keescook@chromium.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Jason Wessel <jason.wessel@windriver.com>,
        Jonathan Corbet <corbet@lwn.net>, x86@kernel.org,
        Rob Herring <robh@kernel.org>,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Len Brown <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>,
        Jessica Yu <jeyu@redhat.com>, linux-doc@vger.kernel.org,
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To: Laura Abbott <labbott@redhat.com>
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On Mon, Feb 06, 2017 at 04:31:57PM -0800, Laura Abbott wrote:
> 
> There are multiple architectures that support CONFIG_DEBUG_RODATA and
> CONFIG_SET_MODULE_RONX. These options also now have the ability to be
> turned off at runtime. Move these to an architecture independent
> location and make these options def_bool y for almost all of those
> arches.
> 
> Signed-off-by: Laura Abbott <labbott@redhat.com>
> ---
> v3: Make these configs selectable for arm. Include some documentation about
> how the setup of the optional Kconfigs work as well. Stop spelling 'kenrel'
> in prompt text.
> ---
>  Documentation/security/self-protection.txt |  6 ++++++
>  arch/Kconfig                               | 34 ++++++++++++++++++++++++++++++
>  arch/arm/Kconfig                           |  4 ++++
>  arch/arm/Kconfig.debug                     | 11 ----------
>  arch/arm/mm/Kconfig                        | 12 -----------
>  arch/arm64/Kconfig                         |  5 ++---
>  arch/arm64/Kconfig.debug                   | 11 ----------
>  arch/parisc/Kconfig                        |  1 +
>  arch/parisc/Kconfig.debug                  | 11 ----------
>  arch/s390/Kconfig                          |  5 ++---
>  arch/s390/Kconfig.debug                    |  3 ---
>  arch/x86/Kconfig                           |  5 ++---
>  arch/x86/Kconfig.debug                     | 11 ----------
>  13 files changed, 51 insertions(+), 68 deletions(-)

For the s390 bits:

Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>

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Subject: Re: arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX
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To: Laura Abbott <labbott@redhat.com>
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+++ Laura Abbott [06/02/17 16:31 -0800]:
>Both of these options are poorly named. The features they provide are
>necessary for system security and should not be considered debug only.
>Change the names to CONFIG_STRICT_KERNEL_RWX and
>CONFIG_STRICT_MODULE_RWX to better describe what these options do.
>
>Signed-off-by: Laura Abbott <labbott@redhat.com>
>---
>v3: Minor config text tweek per Kees. Corrected the change of config names in
>the arm config files.
>---
> Documentation/DocBook/kgdb.tmpl            | 8 ++++----
> Documentation/security/self-protection.txt | 4 ++--
> arch/Kconfig                               | 4 ++--
> arch/arm/configs/aspeed_g4_defconfig       | 4 ++--
> arch/arm/configs/aspeed_g5_defconfig       | 4 ++--
> arch/arm/include/asm/cacheflush.h          | 2 +-
> arch/arm/kernel/patch.c                    | 4 ++--
> arch/arm/kernel/vmlinux.lds.S              | 8 ++++----
> arch/arm/mm/Kconfig                        | 2 +-
> arch/arm/mm/init.c                         | 4 ++--
> arch/arm64/Kconfig.debug                   | 2 +-
> arch/arm64/kernel/insn.c                   | 2 +-
> arch/parisc/configs/712_defconfig          | 1 -
> arch/parisc/configs/c3000_defconfig        | 1 -
> arch/parisc/mm/init.c                      | 2 +-
> include/linux/filter.h                     | 4 ++--
> include/linux/init.h                       | 4 ++--
> include/linux/module.h                     | 2 +-
> init/main.c                                | 4 ++--
> kernel/configs/android-recommended.config  | 2 +-
> kernel/module.c                            | 6 +++---
> kernel/power/hibernate.c                   | 2 +-
> kernel/power/power.h                       | 4 ++--
> kernel/power/snapshot.c                    | 4 ++--
> 24 files changed, 41 insertions(+), 43 deletions(-)

For the module.{c,h} bits:

Acked-by: Jessica Yu <jeyu@redhat.com>



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Subject: Re: [PATCHv3 0/2] Hardening configs refactor/rename
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	Russell King <linux@armlinux.org.uk>, Catalin Marinas <catalin.marinas@arm.com>, 
	Will Deacon <will.deacon@arm.com>, "James E.J. Bottomley" <jejb@parisc-linux.org>, 
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To: Laura Abbott <labbott@redhat.com>
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On Mon, Feb 6, 2017 at 4:31 PM, Laura Abbott <labbott@redhat.com> wrote:
> Hi,
>
> This is v3 of my series to rename/refactor CONFIG_DEBUG_RODATA
> and CONFIG_DEBUG_SET_MODULE_RONX. Among other objections, there shouldn't
> be 'debug' in the name since these provide necessary kernel protection.
>
> v3 mostly focuses on changing how the Kconfig dependencies work for the
> refactor. Russell King requested that these options be deselectable for arm.
> I also threw in some documentation on this under kernel hardening in case other
> arches decide to follow suit.
>
> The plan is for this to go through the KSPP tree so if people are okay with
> this, please give Acks. I didn't take Mark Rutland's ack from before since
> there's been a bit of refactoring.

Thanks! I've added this to my KSPP -next tree. It should appear shortly...

-Kees

>
> Thanks,
> Laura
>
> Laura Abbott (2):
>   arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be common
>   arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX
>
>  Documentation/DocBook/kgdb.tmpl            |  8 +++----
>  Documentation/security/self-protection.txt | 10 +++++++--
>  arch/Kconfig                               | 34 ++++++++++++++++++++++++++++++
>  arch/arm/Kconfig                           |  4 ++++
>  arch/arm/Kconfig.debug                     | 11 ----------
>  arch/arm/configs/aspeed_g4_defconfig       |  4 ++--
>  arch/arm/configs/aspeed_g5_defconfig       |  4 ++--
>  arch/arm/include/asm/cacheflush.h          |  2 +-
>  arch/arm/kernel/patch.c                    |  4 ++--
>  arch/arm/kernel/vmlinux.lds.S              |  8 +++----
>  arch/arm/mm/Kconfig                        | 14 +-----------
>  arch/arm/mm/init.c                         |  4 ++--
>  arch/arm64/Kconfig                         |  5 ++---
>  arch/arm64/Kconfig.debug                   | 13 +-----------
>  arch/arm64/kernel/insn.c                   |  2 +-
>  arch/parisc/Kconfig                        |  1 +
>  arch/parisc/Kconfig.debug                  | 11 ----------
>  arch/parisc/configs/712_defconfig          |  1 -
>  arch/parisc/configs/c3000_defconfig        |  1 -
>  arch/parisc/mm/init.c                      |  2 +-
>  arch/s390/Kconfig                          |  5 ++---
>  arch/s390/Kconfig.debug                    |  3 ---
>  arch/x86/Kconfig                           |  5 ++---
>  arch/x86/Kconfig.debug                     | 11 ----------
>  include/linux/filter.h                     |  4 ++--
>  include/linux/init.h                       |  4 ++--
>  include/linux/module.h                     |  2 +-
>  init/main.c                                |  4 ++--
>  kernel/configs/android-recommended.config  |  2 +-
>  kernel/module.c                            |  6 +++---
>  kernel/power/hibernate.c                   |  2 +-
>  kernel/power/power.h                       |  4 ++--
>  kernel/power/snapshot.c                    |  4 ++--
>  33 files changed, 90 insertions(+), 109 deletions(-)
>
> --
> 2.7.4
>



-- 
Kees Cook
Pixel Security


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Subject: [patch] parisc: fix a printk
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We want to do a pr_cont() here and not a pr_warn().

Fixes: b391667eb45a ("parisc: Report trap type as human readable string")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 1a0b4f63f0e9..c3f8d34a11cf 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -238,8 +238,8 @@ show_signal_msg(struct pt_regs *regs, unsigned long code,
 		vma ? ',':'\n');
 
 	if (vma)
-		pr_warn(KERN_CONT " vm_start = 0x%08lx, vm_end = 0x%08lx\n",
-				vma->vm_start, vma->vm_end);
+		pr_cont(" vm_start = 0x%08lx, vm_end = 0x%08lx\n",
+			vma->vm_start, vma->vm_end);
 
 	show_regs(regs);
 }
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix random faults caused by inequivalent aliases
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The attached patch fixes various random faults mainly observed doing gcc =
compilations.  These faults
are not reproducible.  They are only seen on machines with PA8800 and =
PA8900 processors.  This
strongly suggests the faults are caused by inequivalent aliases.

The kernel sets up vmap non-equivalent memory regions to do I/O.  These =
regions are not equivalently
mapped to the offset pages.  Thus, they might be the cause of the random =
memory corruption.

There are two routines, flush_kernel_vmap_range() and =
invalidate_kernel_vmap_range(), that flush and
invalidate kernel vmap ranges.  After a lot of testing, I found the =
following:

1) PG_dcache_dirty is never set on the offset map pages used by =
invalidate_kernel_vmap_range.  So,
    the for loop never flushes pages in the offset map.  PG_dcache_dirty =
doesn't really indicate a dirty page.
    It indicates that flush for the page is deferred.
2) vmalloc_to_page() can return NULL but it never happens.
3) We need to flush the offset map in both flush_kernel_vmap_range() and =
invalidate_kernel_vmap_range().

I moved the routines from cacheflush.h to cache.c.  This provides access =
to parisc_cache_flush_threshold
and flush_data_cache().  The routines now flush the entire data cache if =
the size of the vmap region exceeds
an appropriate threshold.  This should speed up these routines on small =
cache machines.

Signed-off-by: John David Anglin <dave.anglin@bell.net>


--Apple-Mail-62--415602971
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diff --git a/arch/parisc/include/asm/cacheflush.h =
b/arch/parisc/include/asm/cacheflush.h
index 7bd69bd43a01..1d8c24dc04d4 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -45,28 +45,9 @@ static inline void flush_kernel_dcache_page(struct =
page *page)
=20
 #define flush_kernel_dcache_range(start,size) \
 	flush_kernel_dcache_range_asm((start), (start)+(size));
-/* vmap range flushes and invalidates.  Architecturally, we don't need
- * the invalidate, because the CPU should refuse to speculate once an
- * area has been flushed, so invalidate is left empty */
-static inline void flush_kernel_vmap_range(void *vaddr, int size)
-{
-	unsigned long start =3D (unsigned long)vaddr;
-
-	flush_kernel_dcache_range_asm(start, start + size);
-}
-static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
-{
-	unsigned long start =3D (unsigned long)vaddr;
-	void *cursor =3D vaddr;
=20
-	for ( ; cursor < vaddr + size; cursor +=3D PAGE_SIZE) {
-		struct page *page =3D vmalloc_to_page(cursor);
-
-		if (test_and_clear_bit(PG_dcache_dirty, &page->flags))
-			flush_kernel_dcache_page(page);
-	}
-	flush_kernel_dcache_range_asm(start, start + size);
-}
+void flush_kernel_vmap_range(void *vaddr, int size);
+void invalidate_kernel_vmap_range(void *vaddr, int size);
=20
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 977f0a4f5ecf..91e594492d19 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -633,3 +633,54 @@ flush_cache_page(struct vm_area_struct *vma, =
unsigned long vmaddr, unsigned long
 		__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
 	}
 }
+
+/* Nominally, the caller is responsible for flushing the offset map
+   alias of the vmap area before performing I/O. This is important
+   on PA8800/PA8900 machines that only support equivalent aliases.
+   Failure to flush the offset map leads to random segmentation faults
+   in user space.  Testing has shown that we need to flush the offset
+   map as well as the vmap range. Once an area has been flushed,
+   the CPU will not speculate until there is an explicit access. */
+void flush_kernel_vmap_range(void *vaddr, int size)
+{
+	unsigned long threshold =3D parisc_cache_flush_threshold;
+	unsigned long start =3D (unsigned long)vaddr;
+	void *cursor =3D vaddr;
+
+	if (parisc_requires_coherency())
+		threshold >>=3D 1;
+	if ((unsigned long)size > threshold) {
+		flush_data_cache();
+		return;
+	}
+	if (parisc_requires_coherency()) {
+		for ( ; cursor < vaddr + size; cursor +=3D PAGE_SIZE) {
+			struct page *page =3D vmalloc_to_page(cursor);
+			flush_kernel_dcache_page(page);
+		}
+	}
+	flush_kernel_dcache_range_asm(start, start + size);
+}
+EXPORT_SYMBOL(flush_kernel_vmap_range);
+
+void invalidate_kernel_vmap_range(void *vaddr, int size)
+{
+	unsigned long threshold =3D parisc_cache_flush_threshold;
+	unsigned long start =3D (unsigned long)vaddr;
+	void *cursor =3D vaddr;
+
+	if (parisc_requires_coherency())
+		threshold >>=3D 1;
+	if ((unsigned long)size > threshold) {
+		flush_data_cache();
+		return;
+	}
+	if (parisc_requires_coherency()) {
+		for ( ; cursor < vaddr + size; cursor +=3D PAGE_SIZE) {
+			struct page *page =3D vmalloc_to_page(cursor);
+			flush_kernel_dcache_page(page);
+		}
+	}
+	flush_kernel_dcache_range_asm(start, start + size);
+}
+EXPORT_SYMBOL(invalidate_kernel_vmap_range);

--Apple-Mail-62--415602971
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--
John David Anglin	dave.anglin@bell.net

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From - Thu Nov 08 21:39:38 2018
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From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= <clg@kaod.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH] add a const to ioread* routines to fix compile testing
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On some architectures, the ioread routines are still using a non-const
argument for the address parameter. Let's change that to be consistent
with the others and fix compile testing (ARM drivers on Intel for
instance).

Signed-off-by: Cédric Le Goater <clg@kaod.org>
---

 I am not sure how we should handle these changes, so, here is a big
 patch for all architectures to let maintainers decide. I suppose we
 could merge the patch in one arch, and first see how the 0-Day bot
 reacts.

 The patch can be found on this branch :

   https://github.com/legoater/linux/tree/aspeed

 Compiled on :
   
   arm
   arm64
   avr32   
   frv
   ia64
   alpha
   m68k
   parisc32
   parisc64
   mips
   mips64
   sh32
   sparc32
   sparc64
   x86_64
   i386
   powerpc32
   powerpc64
   powerpc64le
   s390x

 arch/alpha/include/asm/core_apecs.h  |  6 ++--
 arch/alpha/include/asm/core_cia.h    |  6 ++--
 arch/alpha/include/asm/core_lca.h    |  6 ++--
 arch/alpha/include/asm/core_marvel.h |  4 +--
 arch/alpha/include/asm/core_mcpcia.h |  6 ++--
 arch/alpha/include/asm/core_t2.h     |  2 +-
 arch/alpha/include/asm/io.h          |  2 +-
 arch/alpha/include/asm/io_trivial.h  |  6 ++--
 arch/alpha/include/asm/jensen.h      |  2 +-
 arch/alpha/include/asm/machvec.h     |  6 ++--
 arch/alpha/kernel/core_marvel.c      |  2 +-
 arch/alpha/kernel/io.c               | 12 ++++----
 arch/frv/include/asm/io.h            | 12 ++++----
 arch/frv/include/asm/mb-regs.h       |  6 ++--
 arch/mips/lib/iomap.c                | 22 ++++++-------
 arch/parisc/lib/iomap.c              | 60 ++++++++++++++++++------------------
 arch/powerpc/kernel/iomap.c          | 20 ++++++------
 arch/sh/kernel/iomap.c               | 22 ++++++-------
 arch/sparc/include/asm/io_64.h       |  6 ++--
 include/asm-generic/iomap.h          | 20 ++++++------
 lib/iomap.c                          | 22 ++++++-------
 21 files changed, 125 insertions(+), 125 deletions(-)

diff --git a/arch/alpha/include/asm/core_apecs.h b/arch/alpha/include/asm/core_apecs.h
index 6785ff7e02bc..a4c88d2a66f0 100644
--- a/arch/alpha/include/asm/core_apecs.h
+++ b/arch/alpha/include/asm/core_apecs.h
@@ -383,7 +383,7 @@ struct el_apecs_procdata
 		}						\
 	} while (0)
 
-__EXTERN_INLINE unsigned int apecs_ioread8(void __iomem *xaddr)
+__EXTERN_INLINE unsigned int apecs_ioread8(const void __iomem *xaddr)
 {
 	unsigned long addr = (unsigned long) xaddr;
 	unsigned long result, base_and_type;
@@ -419,7 +419,7 @@ __EXTERN_INLINE void apecs_iowrite8(u8 b, void __iomem *xaddr)
 	*(vuip) ((addr << 5) + base_and_type) = w;
 }
 
-__EXTERN_INLINE unsigned int apecs_ioread16(void __iomem *xaddr)
+__EXTERN_INLINE unsigned int apecs_ioread16(const void __iomem *xaddr)
 {
 	unsigned long addr = (unsigned long) xaddr;
 	unsigned long result, base_and_type;
@@ -455,7 +455,7 @@ __EXTERN_INLINE void apecs_iowrite16(u16 b, void __iomem *xaddr)
 	*(vuip) ((addr << 5) + base_and_type) = w;
 }
 
-__EXTERN_INLINE unsigned int apecs_ioread32(void __iomem *xaddr)
+__EXTERN_INLINE unsigned int apecs_ioread32(const void __iomem *xaddr)
 {
 	unsigned long addr = (unsigned long) xaddr;
 	if (addr < APECS_DENSE_MEM)
diff --git a/arch/alpha/include/asm/core_cia.h b/arch/alpha/include/asm/core_cia.h
index 9e0516c0ca27..fdc029953b90 100644
--- a/arch/alpha/include/asm/core_cia.h
+++ b/arch/alpha/include/asm/core_cia.h
@@ -341,7 +341,7 @@ struct el_CIA_sysdata_mcheck {
 #define vuip	volatile unsigned int __force *
 #define vulp	volatile unsigned long __force *
 
-__EXTERN_INLINE unsigned int cia_ioread8(void __iomem *xaddr)
+__EXTERN_INLINE unsigned int cia_ioread8(const void __iomem *xaddr)
 {
 	unsigned long addr = (unsigned long) xaddr;
 	unsigned long result, base_and_type;
@@ -373,7 +373,7 @@ __EXTERN_INLINE void cia_iowrite8(u8 b, void __iomem *xaddr)
 	*(vuip) ((addr << 5) + base_and_type) = w;
 }
 
-__EXTERN_INLINE unsigned int cia_ioread16(void __iomem *xaddr)
+__EXTERN_INLINE unsigned int cia_ioread16(const void __iomem *xaddr)
 {
 	unsigned long addr = (unsigned long) xaddr;
 	unsigned long result, base_and_type;
@@ -403,7 +403,7 @@ __EXTERN_INLINE void cia_iowrite16(u16 b, void __iomem *xaddr)
 	*(vuip) ((addr << 5) + base_and_type) = w;
 }
 
-__EXTERN_INLINE unsigned int cia_ioread32(void __iomem *xaddr)
+__EXTERN_INLINE unsigned int cia_ioread32(const void __iomem *xaddr)
 {
 	unsigned long addr = (unsigned long) xaddr;
 	if (addr < CIA_DENSE_MEM)
diff --git a/arch/alpha/include/asm/core_lca.h b/arch/alpha/include/asm/core_lca.h
index 8ee6c516279c..25277e989731 100644
--- a/arch/alpha/include/asm/core_lca.h
+++ b/arch/alpha/include/asm/core_lca.h
@@ -229,7 +229,7 @@ union el_lca {
 	} while (0)
 
 
-__EXTERN_INLINE unsigned int lca_ioread8(void __iomem *xaddr)
+__EXTERN_INLINE unsigned int lca_ioread8(const void __iomem *xaddr)
 {
 	unsigned long addr = (unsigned long) xaddr;
 	unsigned long result, base_and_type;
@@ -265,7 +265,7 @@ __EXTERN_INLINE void lca_iowrite8(u8 b, void __iomem *xaddr)
 	*(vuip) ((addr << 5) + base_and_type) = w;
 }
 
-__EXTERN_INLINE unsigned int lca_ioread16(void __iomem *xaddr)
+__EXTERN_INLINE unsigned int lca_ioread16(const void __iomem *xaddr)
 {
 	unsigned long addr = (unsigned long) xaddr;
 	unsigned long result, base_and_type;
@@ -301,7 +301,7 @@ __EXTERN_INLINE void lca_iowrite16(u16 b, void __iomem *xaddr)
 	*(vuip) ((addr << 5) + base_and_type) = w;
 }
 
-__EXTERN_INLINE unsigned int lca_ioread32(void __iomem *xaddr)
+__EXTERN_INLINE unsigned int lca_ioread32(const void __iomem *xaddr)
 {
 	unsigned long addr = (unsigned long) xaddr;
 	if (addr < LCA_DENSE_MEM)
diff --git a/arch/alpha/include/asm/core_marvel.h b/arch/alpha/include/asm/core_marvel.h
index dad300fa14ce..e4163d539b9d 100644
--- a/arch/alpha/include/asm/core_marvel.h
+++ b/arch/alpha/include/asm/core_marvel.h
@@ -331,10 +331,10 @@ struct io7 {
 #define vucp	volatile unsigned char __force *
 #define vusp	volatile unsigned short __force *
 
-extern unsigned int marvel_ioread8(void __iomem *);
+extern unsigned int marvel_ioread8(const void __iomem *addr);
 extern void marvel_iowrite8(u8 b, void __iomem *);
 
-__EXTERN_INLINE unsigned int marvel_ioread16(void __iomem *addr)
+__EXTERN_INLINE unsigned int marvel_ioread16(const void __iomem *addr)
 {
 	return __kernel_ldwu(*(vusp)addr);
 }
diff --git a/arch/alpha/include/asm/core_mcpcia.h b/arch/alpha/include/asm/core_mcpcia.h
index ad44bef29fba..9f45699761f7 100644
--- a/arch/alpha/include/asm/core_mcpcia.h
+++ b/arch/alpha/include/asm/core_mcpcia.h
@@ -266,7 +266,7 @@ extern inline int __mcpcia_is_mmio(unsigned long addr)
 	return (addr & 0x80000000UL) == 0;
 }
 
-__EXTERN_INLINE unsigned int mcpcia_ioread8(void __iomem *xaddr)
+__EXTERN_INLINE unsigned int mcpcia_ioread8(const void __iomem *xaddr)
 {
 	unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
 	unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
@@ -290,7 +290,7 @@ __EXTERN_INLINE void mcpcia_iowrite8(u8 b, void __iomem *xaddr)
 	*(vuip) ((addr << 5) + hose + 0x00) = w;
 }
 
-__EXTERN_INLINE unsigned int mcpcia_ioread16(void __iomem *xaddr)
+__EXTERN_INLINE unsigned int mcpcia_ioread16(const void __iomem *xaddr)
 {
 	unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
 	unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
@@ -314,7 +314,7 @@ __EXTERN_INLINE void mcpcia_iowrite16(u16 b, void __iomem *xaddr)
 	*(vuip) ((addr << 5) + hose + 0x08) = w;
 }
 
-__EXTERN_INLINE unsigned int mcpcia_ioread32(void __iomem *xaddr)
+__EXTERN_INLINE unsigned int mcpcia_ioread32(const void __iomem *xaddr)
 {
 	unsigned long addr = (unsigned long)xaddr;
 
diff --git a/arch/alpha/include/asm/core_t2.h b/arch/alpha/include/asm/core_t2.h
index ade9d92e68b4..a7e7114b9b10 100644
--- a/arch/alpha/include/asm/core_t2.h
+++ b/arch/alpha/include/asm/core_t2.h
@@ -571,7 +571,7 @@ __EXTERN_INLINE int t2_is_mmio(const volatile void __iomem *addr)
    it doesn't make sense to merge the pio and mmio routines.  */
 
 #define IOPORT(OS, NS)							\
-__EXTERN_INLINE unsigned int t2_ioread##NS(void __iomem *xaddr)		\
+__EXTERN_INLINE unsigned int t2_ioread##NS(const void __iomem *xaddr)		\
 {									\
 	if (t2_is_mmio(xaddr))						\
 		return t2_read##OS(xaddr);				\
diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h
index ff4049155c84..059be6c68a68 100644
--- a/arch/alpha/include/asm/io.h
+++ b/arch/alpha/include/asm/io.h
@@ -144,7 +144,7 @@ static inline void * __deprecated bus_to_virt(unsigned long address)
 /* In a generic kernel, we always go through the machine vector.  */
 
 #define REMAP1(TYPE, NAME, QUAL)					\
-static inline TYPE generic_##NAME(QUAL void __iomem *addr)		\
+static inline TYPE generic_##NAME(QUAL const void __iomem *addr)	\
 {									\
 	return alpha_mv.mv_##NAME(addr);				\
 }
diff --git a/arch/alpha/include/asm/io_trivial.h b/arch/alpha/include/asm/io_trivial.h
index 1c77f10b4b36..a7aa24b4b13d 100644
--- a/arch/alpha/include/asm/io_trivial.h
+++ b/arch/alpha/include/asm/io_trivial.h
@@ -6,13 +6,13 @@
 
 #if IO_CONCAT(__IO_PREFIX,trivial_io_bw)
 __EXTERN_INLINE unsigned int
-IO_CONCAT(__IO_PREFIX,ioread8)(void __iomem *a)
+IO_CONCAT(__IO_PREFIX, ioread8)(const void __iomem *a)
 {
 	return __kernel_ldbu(*(volatile u8 __force *)a);
 }
 
 __EXTERN_INLINE unsigned int
-IO_CONCAT(__IO_PREFIX,ioread16)(void __iomem *a)
+IO_CONCAT(__IO_PREFIX, ioread16)(const void __iomem *a)
 {
 	return __kernel_ldwu(*(volatile u16 __force *)a);
 }
@@ -32,7 +32,7 @@ IO_CONCAT(__IO_PREFIX,iowrite16)(u16 b, void __iomem *a)
 
 #if IO_CONCAT(__IO_PREFIX,trivial_io_lq)
 __EXTERN_INLINE unsigned int
-IO_CONCAT(__IO_PREFIX,ioread32)(void __iomem *a)
+IO_CONCAT(__IO_PREFIX, ioread32)(const void __iomem *a)
 {
 	return *(volatile u32 __force *)a;
 }
diff --git a/arch/alpha/include/asm/jensen.h b/arch/alpha/include/asm/jensen.h
index 964b06ead43b..bafede37d995 100644
--- a/arch/alpha/include/asm/jensen.h
+++ b/arch/alpha/include/asm/jensen.h
@@ -304,7 +304,7 @@ __EXTERN_INLINE int jensen_is_mmio(const volatile void __iomem *addr)
    that it doesn't make sense to merge them.  */
 
 #define IOPORT(OS, NS)							\
-__EXTERN_INLINE unsigned int jensen_ioread##NS(void __iomem *xaddr)	\
+__EXTERN_INLINE unsigned int jensen_ioread##NS(const void __iomem *xaddr) \
 {									\
 	if (jensen_is_mmio(xaddr))					\
 		return jensen_read##OS(xaddr - 0x100000000ul);		\
diff --git a/arch/alpha/include/asm/machvec.h b/arch/alpha/include/asm/machvec.h
index 75cb3641ed2f..cca4a75f6f6b 100644
--- a/arch/alpha/include/asm/machvec.h
+++ b/arch/alpha/include/asm/machvec.h
@@ -45,9 +45,9 @@ struct alpha_machine_vector
 	void (*mv_pci_tbi)(struct pci_controller *hose,
 			   dma_addr_t start, dma_addr_t end);
 
-	unsigned int (*mv_ioread8)(void __iomem *);
-	unsigned int (*mv_ioread16)(void __iomem *);
-	unsigned int (*mv_ioread32)(void __iomem *);
+	unsigned int (*mv_ioread8)(const void __iomem *);
+	unsigned int (*mv_ioread16)(const void __iomem *);
+	unsigned int (*mv_ioread32)(const void __iomem *);
 
 	void (*mv_iowrite8)(u8, void __iomem *);
 	void (*mv_iowrite16)(u16, void __iomem *);
diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c
index d5f0580746a5..e7dd5914b3ed 100644
--- a/arch/alpha/kernel/core_marvel.c
+++ b/arch/alpha/kernel/core_marvel.c
@@ -798,7 +798,7 @@ void __iomem *marvel_ioportmap (unsigned long addr)
 }
 
 unsigned int
-marvel_ioread8(void __iomem *xaddr)
+marvel_ioread8(const void __iomem *xaddr)
 {
 	unsigned long addr = (unsigned long) xaddr;
 	if (__marvel_is_port_kbd(addr))
diff --git a/arch/alpha/kernel/io.c b/arch/alpha/kernel/io.c
index 19c5875ab398..c1c7457bf3d3 100644
--- a/arch/alpha/kernel/io.c
+++ b/arch/alpha/kernel/io.c
@@ -13,21 +13,21 @@
    "generic", which bumps through the machine vector.  */
 
 unsigned int
-ioread8(void __iomem *addr)
+ioread8(const void __iomem *addr)
 {
 	unsigned int ret = IO_CONCAT(__IO_PREFIX,ioread8)(addr);
 	mb();
 	return ret;
 }
 
-unsigned int ioread16(void __iomem *addr)
+unsigned int ioread16(const void __iomem *addr)
 {
 	unsigned int ret = IO_CONCAT(__IO_PREFIX,ioread16)(addr);
 	mb();
 	return ret;
 }
 
-unsigned int ioread32(void __iomem *addr)
+unsigned int ioread32(const void __iomem *addr)
 {
 	unsigned int ret = IO_CONCAT(__IO_PREFIX,ioread32)(addr);
 	mb();
@@ -210,7 +210,7 @@ EXPORT_SYMBOL(writeq);
 /*
  * Read COUNT 8-bit bytes from port PORT into memory starting at SRC.
  */
-void ioread8_rep(void __iomem *port, void *dst, unsigned long count)
+void ioread8_rep(const void __iomem *port, void *dst, unsigned long count)
 {
 	while ((unsigned long)dst & 0x3) {
 		if (!count)
@@ -253,7 +253,7 @@ EXPORT_SYMBOL(insb);
  * the interfaces seems to be slow: just using the inlined version
  * of the inw() breaks things.
  */
-void ioread16_rep(void __iomem *port, void *dst, unsigned long count)
+void ioread16_rep(const void __iomem *port, void *dst, unsigned long count)
 {
 	if (unlikely((unsigned long)dst & 0x3)) {
 		if (!count)
@@ -293,7 +293,7 @@ EXPORT_SYMBOL(insw);
  * but the interfaces seems to be slow: just using the inlined version
  * of the inl() breaks things.
  */
-void ioread32_rep(void __iomem *port, void *dst, unsigned long count)
+void ioread32_rep(const void __iomem *port, void *dst, unsigned long count)
 {
 	if (unlikely((unsigned long)dst & 0x3)) {
 		while (count--) {
diff --git a/arch/frv/include/asm/io.h b/arch/frv/include/asm/io.h
index 8062fc73fad0..887add348f38 100644
--- a/arch/frv/include/asm/io.h
+++ b/arch/frv/include/asm/io.h
@@ -310,12 +310,12 @@ static inline void flush_write_buffers(void)
 /*
  * do appropriate I/O accesses for token type
  */
-static inline unsigned int ioread8(void __iomem *p)
+static inline unsigned int ioread8(const void __iomem *p)
 {
 	return __builtin_read8(p);
 }
 
-static inline unsigned int ioread16(void __iomem *p)
+static inline unsigned int ioread16(const void __iomem *p)
 {
 	uint16_t ret = __builtin_read16(p);
 	if (__is_PCI_addr(p))
@@ -323,7 +323,7 @@ static inline unsigned int ioread16(void __iomem *p)
 	return ret;
 }
 
-static inline unsigned int ioread32(void __iomem *p)
+static inline unsigned int ioread32(const void __iomem *p)
 {
 	uint32_t ret = __builtin_read32(p);
 	if (__is_PCI_addr(p))
@@ -361,17 +361,17 @@ static inline void iowrite32(u32 val, void __iomem *p)
 #define iowrite16be(v, addr)	iowrite16(cpu_to_be16(v), (addr))
 #define iowrite32be(v, addr)	iowrite32(cpu_to_be32(v), (addr))
 
-static inline void ioread8_rep(void __iomem *p, void *dst, unsigned long count)
+static inline void ioread8_rep(const void __iomem *p, void *dst, unsigned long count)
 {
 	io_insb((unsigned long) p, dst, count);
 }
 
-static inline void ioread16_rep(void __iomem *p, void *dst, unsigned long count)
+static inline void ioread16_rep(const void __iomem *p, void *dst, unsigned long count)
 {
 	io_insw((unsigned long) p, dst, count);
 }
 
-static inline void ioread32_rep(void __iomem *p, void *dst, unsigned long count)
+static inline void ioread32_rep(const void __iomem *p, void *dst, unsigned long count)
 {
 	__insl_ns((unsigned long) p, dst, count);
 }
diff --git a/arch/frv/include/asm/mb-regs.h b/arch/frv/include/asm/mb-regs.h
index 219e5f926f18..926a8663c3d4 100644
--- a/arch/frv/include/asm/mb-regs.h
+++ b/arch/frv/include/asm/mb-regs.h
@@ -19,9 +19,9 @@
 #ifndef __ASSEMBLY__
 /* gcc builtins, annotated */
 
-unsigned long __builtin_read8(volatile void __iomem *);
-unsigned long __builtin_read16(volatile void __iomem *);
-unsigned long __builtin_read32(volatile void __iomem *);
+unsigned long __builtin_read8(const volatile void __iomem *);
+unsigned long __builtin_read16(const volatile void __iomem *);
+unsigned long __builtin_read32(const volatile void __iomem *);
 void __builtin_write8(volatile void __iomem *, unsigned char);
 void __builtin_write16(volatile void __iomem *, unsigned short);
 void __builtin_write32(volatile void __iomem *, unsigned long);
diff --git a/arch/mips/lib/iomap.c b/arch/mips/lib/iomap.c
index 9daa92428e23..3b342dc40eda 100644
--- a/arch/mips/lib/iomap.c
+++ b/arch/mips/lib/iomap.c
@@ -25,35 +25,35 @@
 
 #define PIO_MASK	0x0ffffUL
 
-unsigned int ioread8(void __iomem *addr)
+unsigned int ioread8(const void __iomem *addr)
 {
 	return readb(addr);
 }
 
 EXPORT_SYMBOL(ioread8);
 
-unsigned int ioread16(void __iomem *addr)
+unsigned int ioread16(const void __iomem *addr)
 {
 	return readw(addr);
 }
 
 EXPORT_SYMBOL(ioread16);
 
-unsigned int ioread16be(void __iomem *addr)
+unsigned int ioread16be(const void __iomem *addr)
 {
 	return be16_to_cpu(__raw_readw(addr));
 }
 
 EXPORT_SYMBOL(ioread16be);
 
-unsigned int ioread32(void __iomem *addr)
+unsigned int ioread32(const void __iomem *addr)
 {
 	return readl(addr);
 }
 
 EXPORT_SYMBOL(ioread32);
 
-unsigned int ioread32be(void __iomem *addr)
+unsigned int ioread32be(const void __iomem *addr)
 {
 	return be32_to_cpu(__raw_readl(addr));
 }
@@ -101,7 +101,7 @@ EXPORT_SYMBOL(iowrite32be);
  * to CPU byte order if the host bus happens to not match the
  * endianness of PCI/ISA (see mach-generic/mangle-port.h).
  */
-static inline void mmio_insb(void __iomem *addr, u8 *dst, int count)
+static inline void mmio_insb(const void __iomem *addr, u8 *dst, int count)
 {
 	while (--count >= 0) {
 		u8 data = __mem_readb(addr);
@@ -110,7 +110,7 @@ static inline void mmio_insb(void __iomem *addr, u8 *dst, int count)
 	}
 }
 
-static inline void mmio_insw(void __iomem *addr, u16 *dst, int count)
+static inline void mmio_insw(const void __iomem *addr, u16 *dst, int count)
 {
 	while (--count >= 0) {
 		u16 data = __mem_readw(addr);
@@ -119,7 +119,7 @@ static inline void mmio_insw(void __iomem *addr, u16 *dst, int count)
 	}
 }
 
-static inline void mmio_insl(void __iomem *addr, u32 *dst, int count)
+static inline void mmio_insl(const void __iomem *addr, u32 *dst, int count)
 {
 	while (--count >= 0) {
 		u32 data = __mem_readl(addr);
@@ -152,21 +152,21 @@ static inline void mmio_outsl(void __iomem *addr, const u32 *src, int count)
 	}
 }
 
-void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread8_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	mmio_insb(addr, dst, count);
 }
 
 EXPORT_SYMBOL(ioread8_rep);
 
-void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread16_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	mmio_insw(addr, dst, count);
 }
 
 EXPORT_SYMBOL(ioread16_rep);
 
-void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread32_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	mmio_insl(addr, dst, count);
 }
diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index eaffbb90aa14..5dee8c352256 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -42,19 +42,19 @@
 #endif
 
 struct iomap_ops {
-	unsigned int (*read8)(void __iomem *);
-	unsigned int (*read16)(void __iomem *);
-	unsigned int (*read16be)(void __iomem *);
-	unsigned int (*read32)(void __iomem *);
-	unsigned int (*read32be)(void __iomem *);
+	unsigned int (*read8)(const void __iomem *);
+	unsigned int (*read16)(const void __iomem *);
+	unsigned int (*read16be)(const void __iomem *);
+	unsigned int (*read32)(const void __iomem *);
+	unsigned int (*read32be)(const void __iomem *);
 	void (*write8)(u8, void __iomem *);
 	void (*write16)(u16, void __iomem *);
 	void (*write16be)(u16, void __iomem *);
 	void (*write32)(u32, void __iomem *);
 	void (*write32be)(u32, void __iomem *);
-	void (*read8r)(void __iomem *, void *, unsigned long);
-	void (*read16r)(void __iomem *, void *, unsigned long);
-	void (*read32r)(void __iomem *, void *, unsigned long);
+	void (*read8r)(const void __iomem *, void *, unsigned long);
+	void (*read16r)(const void __iomem *, void *, unsigned long);
+	void (*read32r)(const void __iomem *, void *, unsigned long);
 	void (*write8r)(void __iomem *, const void *, unsigned long);
 	void (*write16r)(void __iomem *, const void *, unsigned long);
 	void (*write32r)(void __iomem *, const void *, unsigned long);
@@ -64,17 +64,17 @@ struct iomap_ops {
 
 #define ADDR2PORT(addr) ((unsigned long __force)(addr) & 0xffffff)
 
-static unsigned int ioport_read8(void __iomem *addr)
+static unsigned int ioport_read8(const void __iomem *addr)
 {
 	return inb(ADDR2PORT(addr));
 }
 
-static unsigned int ioport_read16(void __iomem *addr)
+static unsigned int ioport_read16(const void __iomem *addr)
 {
 	return inw(ADDR2PORT(addr));
 }
 
-static unsigned int ioport_read32(void __iomem *addr)
+static unsigned int ioport_read32(const void __iomem *addr)
 {
 	return inl(ADDR2PORT(addr));
 }
@@ -94,17 +94,17 @@ static void ioport_write32(u32 datum, void __iomem *addr)
 	outl(datum, ADDR2PORT(addr));
 }
 
-static void ioport_read8r(void __iomem *addr, void *dst, unsigned long count)
+static void ioport_read8r(const void __iomem *addr, void *dst, unsigned long count)
 {
 	insb(ADDR2PORT(addr), dst, count);
 }
 
-static void ioport_read16r(void __iomem *addr, void *dst, unsigned long count)
+static void ioport_read16r(const void __iomem *addr, void *dst, unsigned long count)
 {
 	insw(ADDR2PORT(addr), dst, count);
 }
 
-static void ioport_read32r(void __iomem *addr, void *dst, unsigned long count)
+static void ioport_read32r(const void __iomem *addr, void *dst, unsigned long count)
 {
 	insl(ADDR2PORT(addr), dst, count);
 }
@@ -145,27 +145,27 @@ static const struct iomap_ops ioport_ops = {
 
 /* Legacy I/O memory ops */
 
-static unsigned int iomem_read8(void __iomem *addr)
+static unsigned int iomem_read8(const void __iomem *addr)
 {
 	return readb(addr);
 }
 
-static unsigned int iomem_read16(void __iomem *addr)
+static unsigned int iomem_read16(const void __iomem *addr)
 {
 	return readw(addr);
 }
 
-static unsigned int iomem_read16be(void __iomem *addr)
+static unsigned int iomem_read16be(const void __iomem *addr)
 {
 	return __raw_readw(addr);
 }
 
-static unsigned int iomem_read32(void __iomem *addr)
+static unsigned int iomem_read32(const void __iomem *addr)
 {
 	return readl(addr);
 }
 
-static unsigned int iomem_read32be(void __iomem *addr)
+static unsigned int iomem_read32be(const void __iomem *addr)
 {
 	return __raw_readl(addr);
 }
@@ -195,7 +195,7 @@ static void iomem_write32be(u32 datum, void __iomem *addr)
 	__raw_writel(datum, addr);
 }
 
-static void iomem_read8r(void __iomem *addr, void *dst, unsigned long count)
+static void iomem_read8r(const void __iomem *addr, void *dst, unsigned long count)
 {
 	while (count--) {
 		*(u8 *)dst = __raw_readb(addr);
@@ -203,7 +203,7 @@ static void iomem_read8r(void __iomem *addr, void *dst, unsigned long count)
 	}
 }
 
-static void iomem_read16r(void __iomem *addr, void *dst, unsigned long count)
+static void iomem_read16r(const void __iomem *addr, void *dst, unsigned long count)
 {
 	while (count--) {
 		*(u16 *)dst = __raw_readw(addr);
@@ -211,7 +211,7 @@ static void iomem_read16r(void __iomem *addr, void *dst, unsigned long count)
 	}
 }
 
-static void iomem_read32r(void __iomem *addr, void *dst, unsigned long count)
+static void iomem_read32r(const void __iomem *addr, void *dst, unsigned long count)
 {
 	while (count--) {
 		*(u32 *)dst = __raw_readl(addr);
@@ -268,35 +268,35 @@ static const struct iomap_ops *iomap_ops[8] = {
 };
 
 
-unsigned int ioread8(void __iomem *addr)
+unsigned int ioread8(const void __iomem *addr)
 {
 	if (unlikely(INDIRECT_ADDR(addr)))
 		return iomap_ops[ADDR_TO_REGION(addr)]->read8(addr);
 	return *((u8 *)addr);
 }
 
-unsigned int ioread16(void __iomem *addr)
+unsigned int ioread16(const void __iomem *addr)
 {
 	if (unlikely(INDIRECT_ADDR(addr)))
 		return iomap_ops[ADDR_TO_REGION(addr)]->read16(addr);
 	return le16_to_cpup((u16 *)addr);
 }
 
-unsigned int ioread16be(void __iomem *addr)
+unsigned int ioread16be(const void __iomem *addr)
 {
 	if (unlikely(INDIRECT_ADDR(addr)))
 		return iomap_ops[ADDR_TO_REGION(addr)]->read16be(addr);
 	return *((u16 *)addr);
 }
 
-unsigned int ioread32(void __iomem *addr)
+unsigned int ioread32(const void __iomem *addr)
 {
 	if (unlikely(INDIRECT_ADDR(addr)))
 		return iomap_ops[ADDR_TO_REGION(addr)]->read32(addr);
 	return le32_to_cpup((u32 *)addr);
 }
 
-unsigned int ioread32be(void __iomem *addr)
+unsigned int ioread32be(const void __iomem *addr)
 {
 	if (unlikely(INDIRECT_ADDR(addr)))
 		return iomap_ops[ADDR_TO_REGION(addr)]->read32be(addr);
@@ -350,7 +350,7 @@ void iowrite32be(u32 datum, void __iomem *addr)
 
 /* Repeating interfaces */
 
-void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread8_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	if (unlikely(INDIRECT_ADDR(addr))) {
 		iomap_ops[ADDR_TO_REGION(addr)]->read8r(addr, dst, count);
@@ -362,7 +362,7 @@ void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
 	}
 }
 
-void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread16_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	if (unlikely(INDIRECT_ADDR(addr))) {
 		iomap_ops[ADDR_TO_REGION(addr)]->read16r(addr, dst, count);
@@ -374,7 +374,7 @@ void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
 	}
 }
 
-void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread32_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	if (unlikely(INDIRECT_ADDR(addr))) {
 		iomap_ops[ADDR_TO_REGION(addr)]->read32r(addr, dst, count);
diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c
index 3963f0b68d52..8a7719d1a805 100644
--- a/arch/powerpc/kernel/iomap.c
+++ b/arch/powerpc/kernel/iomap.c
@@ -13,23 +13,23 @@
  * Here comes the ppc64 implementation of the IOMAP 
  * interfaces.
  */
-unsigned int ioread8(void __iomem *addr)
+unsigned int ioread8(const void __iomem *addr)
 {
 	return readb(addr);
 }
-unsigned int ioread16(void __iomem *addr)
+unsigned int ioread16(const void __iomem *addr)
 {
 	return readw(addr);
 }
-unsigned int ioread16be(void __iomem *addr)
+unsigned int ioread16be(const void __iomem *addr)
 {
 	return readw_be(addr);
 }
-unsigned int ioread32(void __iomem *addr)
+unsigned int ioread32(const void __iomem *addr)
 {
 	return readl(addr);
 }
-unsigned int ioread32be(void __iomem *addr)
+unsigned int ioread32be(const void __iomem *addr)
 {
 	return readl_be(addr);
 }
@@ -39,11 +39,11 @@ EXPORT_SYMBOL(ioread16be);
 EXPORT_SYMBOL(ioread32);
 EXPORT_SYMBOL(ioread32be);
 #ifdef __powerpc64__
-u64 ioread64(void __iomem *addr)
+u64 ioread64(const void __iomem *addr)
 {
 	return readq(addr);
 }
-u64 ioread64be(void __iomem *addr)
+u64 ioread64be(const void __iomem *addr)
 {
 	return readq_be(addr);
 }
@@ -97,15 +97,15 @@ EXPORT_SYMBOL(iowrite64be);
  * FIXME! We could make these do EEH handling if we really
  * wanted. Not clear if we do.
  */
-void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread8_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	readsb(addr, dst, count);
 }
-void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread16_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	readsw(addr, dst, count);
 }
-void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread32_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	readsl(addr, dst, count);
 }
diff --git a/arch/sh/kernel/iomap.c b/arch/sh/kernel/iomap.c
index 2e8e8b9b9cef..0ee468c88b20 100644
--- a/arch/sh/kernel/iomap.c
+++ b/arch/sh/kernel/iomap.c
@@ -11,31 +11,31 @@
 #include <linux/module.h>
 #include <linux/io.h>
 
-unsigned int ioread8(void __iomem *addr)
+unsigned int ioread8(const void __iomem *addr)
 {
 	return readb(addr);
 }
 EXPORT_SYMBOL(ioread8);
 
-unsigned int ioread16(void __iomem *addr)
+unsigned int ioread16(const void __iomem *addr)
 {
 	return readw(addr);
 }
 EXPORT_SYMBOL(ioread16);
 
-unsigned int ioread16be(void __iomem *addr)
+unsigned int ioread16be(const void __iomem *addr)
 {
 	return be16_to_cpu(__raw_readw(addr));
 }
 EXPORT_SYMBOL(ioread16be);
 
-unsigned int ioread32(void __iomem *addr)
+unsigned int ioread32(const void __iomem *addr)
 {
 	return readl(addr);
 }
 EXPORT_SYMBOL(ioread32);
 
-unsigned int ioread32be(void __iomem *addr)
+unsigned int ioread32be(const void __iomem *addr)
 {
 	return be32_to_cpu(__raw_readl(addr));
 }
@@ -77,7 +77,7 @@ EXPORT_SYMBOL(iowrite32be);
  * convert to CPU byte order. We write in "IO byte
  * order" (we also don't have IO barriers).
  */
-static inline void mmio_insb(void __iomem *addr, u8 *dst, int count)
+static inline void mmio_insb(const void __iomem *addr, u8 *dst, int count)
 {
 	while (--count >= 0) {
 		u8 data = __raw_readb(addr);
@@ -86,7 +86,7 @@ static inline void mmio_insb(void __iomem *addr, u8 *dst, int count)
 	}
 }
 
-static inline void mmio_insw(void __iomem *addr, u16 *dst, int count)
+static inline void mmio_insw(const void __iomem *addr, u16 *dst, int count)
 {
 	while (--count >= 0) {
 		u16 data = __raw_readw(addr);
@@ -95,7 +95,7 @@ static inline void mmio_insw(void __iomem *addr, u16 *dst, int count)
 	}
 }
 
-static inline void mmio_insl(void __iomem *addr, u32 *dst, int count)
+static inline void mmio_insl(const void __iomem *addr, u32 *dst, int count)
 {
 	while (--count >= 0) {
 		u32 data = __raw_readl(addr);
@@ -128,19 +128,19 @@ static inline void mmio_outsl(void __iomem *addr, const u32 *src, int count)
 	}
 }
 
-void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread8_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	mmio_insb(addr, dst, count);
 }
 EXPORT_SYMBOL(ioread8_rep);
 
-void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread16_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	mmio_insw(addr, dst, count);
 }
 EXPORT_SYMBOL(ioread16_rep);
 
-void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread32_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	mmio_insl(addr, dst, count);
 }
diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index c32fa3f752c8..5be679c58602 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -242,16 +242,16 @@ void insb(unsigned long, void *, unsigned long);
 void insw(unsigned long, void *, unsigned long);
 void insl(unsigned long, void *, unsigned long);
 
-static inline void ioread8_rep(void __iomem *port, void *buf, unsigned long count)
+static inline void ioread8_rep(const void __iomem *port, void *buf, unsigned long count)
 {
 	insb((unsigned long __force)port, buf, count);
 }
-static inline void ioread16_rep(void __iomem *port, void *buf, unsigned long count)
+static inline void ioread16_rep(const void __iomem *port, void *buf, unsigned long count)
 {
 	insw((unsigned long __force)port, buf, count);
 }
 
-static inline void ioread32_rep(void __iomem *port, void *buf, unsigned long count)
+static inline void ioread32_rep(const void __iomem *port, void *buf, unsigned long count)
 {
 	insl((unsigned long __force)port, buf, count);
 }
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index 650fede33c25..77ac2a1e838f 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -25,14 +25,14 @@
  * in the low address range. Architectures for which this is not
  * true can't use this generic implementation.
  */
-extern unsigned int ioread8(void __iomem *);
-extern unsigned int ioread16(void __iomem *);
-extern unsigned int ioread16be(void __iomem *);
-extern unsigned int ioread32(void __iomem *);
-extern unsigned int ioread32be(void __iomem *);
+extern unsigned int ioread8(const void __iomem *);
+extern unsigned int ioread16(const void __iomem *);
+extern unsigned int ioread16be(const void __iomem *);
+extern unsigned int ioread32(const void __iomem *);
+extern unsigned int ioread32be(const void __iomem *);
 #ifdef CONFIG_64BIT
-extern u64 ioread64(void __iomem *);
-extern u64 ioread64be(void __iomem *);
+extern u64 ioread64(const void __iomem *);
+extern u64 ioread64be(const void __iomem *);
 #endif
 
 extern void iowrite8(u8, void __iomem *);
@@ -56,9 +56,9 @@ extern void iowrite64be(u64, void __iomem *);
  * memory across multiple ports, use "memcpy_toio()"
  * and friends.
  */
-extern void ioread8_rep(void __iomem *port, void *buf, unsigned long count);
-extern void ioread16_rep(void __iomem *port, void *buf, unsigned long count);
-extern void ioread32_rep(void __iomem *port, void *buf, unsigned long count);
+extern void ioread8_rep(const void __iomem *port, void *buf, unsigned long count);
+extern void ioread16_rep(const void __iomem *port, void *buf, unsigned long count);
+extern void ioread32_rep(const void __iomem *port, void *buf, unsigned long count);
 
 extern void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count);
 extern void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count);
diff --git a/lib/iomap.c b/lib/iomap.c
index fc3dcb4b238e..ec9b235835d9 100644
--- a/lib/iomap.c
+++ b/lib/iomap.c
@@ -68,27 +68,27 @@ static void bad_io_access(unsigned long port, const char *access)
 #define mmio_read32be(addr) be32_to_cpu(__raw_readl(addr))
 #endif
 
-unsigned int ioread8(void __iomem *addr)
+unsigned int ioread8(const void __iomem *addr)
 {
 	IO_COND(addr, return inb(port), return readb(addr));
 	return 0xff;
 }
-unsigned int ioread16(void __iomem *addr)
+unsigned int ioread16(const void __iomem *addr)
 {
 	IO_COND(addr, return inw(port), return readw(addr));
 	return 0xffff;
 }
-unsigned int ioread16be(void __iomem *addr)
+unsigned int ioread16be(const void __iomem *addr)
 {
 	IO_COND(addr, return pio_read16be(port), return mmio_read16be(addr));
 	return 0xffff;
 }
-unsigned int ioread32(void __iomem *addr)
+unsigned int ioread32(const void __iomem *addr)
 {
 	IO_COND(addr, return inl(port), return readl(addr));
 	return 0xffffffff;
 }
-unsigned int ioread32be(void __iomem *addr)
+unsigned int ioread32be(const void __iomem *addr)
 {
 	IO_COND(addr, return pio_read32be(port), return mmio_read32be(addr));
 	return 0xffffffff;
@@ -142,7 +142,7 @@ EXPORT_SYMBOL(iowrite32be);
  * order" (we also don't have IO barriers).
  */
 #ifndef mmio_insb
-static inline void mmio_insb(void __iomem *addr, u8 *dst, int count)
+static inline void mmio_insb(const void __iomem *addr, u8 *dst, int count)
 {
 	while (--count >= 0) {
 		u8 data = __raw_readb(addr);
@@ -150,7 +150,7 @@ static inline void mmio_insb(void __iomem *addr, u8 *dst, int count)
 		dst++;
 	}
 }
-static inline void mmio_insw(void __iomem *addr, u16 *dst, int count)
+static inline void mmio_insw(const void __iomem *addr, u16 *dst, int count)
 {
 	while (--count >= 0) {
 		u16 data = __raw_readw(addr);
@@ -158,7 +158,7 @@ static inline void mmio_insw(void __iomem *addr, u16 *dst, int count)
 		dst++;
 	}
 }
-static inline void mmio_insl(void __iomem *addr, u32 *dst, int count)
+static inline void mmio_insl(const void __iomem *addr, u32 *dst, int count)
 {
 	while (--count >= 0) {
 		u32 data = __raw_readl(addr);
@@ -192,15 +192,15 @@ static inline void mmio_outsl(void __iomem *addr, const u32 *src, int count)
 }
 #endif
 
-void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread8_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	IO_COND(addr, insb(port,dst,count), mmio_insb(addr, dst, count));
 }
-void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread16_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	IO_COND(addr, insw(port,dst,count), mmio_insw(addr, dst, count));
 }
-void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
+void ioread32_rep(const void __iomem *addr, void *dst, unsigned long count)
 {
 	IO_COND(addr, insl(port,dst,count), mmio_insl(addr, dst, count));
 }
-- 
2.7.4




From - Thu Nov 08 21:39:38 2018
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Subject: Re: [PATCH] prctl: implement PR_GET_ENDIAN for all architectures
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
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To: "Maciej W. Rozycki" <macro@linux-mips.org>,
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"Maciej W. Rozycki" <macro@linux-mips.org> writes:

> On Sun, 5 Feb 2017, Matt Turner wrote:
>
>> > I don't think it is other than for PPC.  If you're not variable endian
>> > (which is only PPC to date), then you should know a priori what endian
>> > you are from the #defines in userspace.
>> 
>> MIPS as well, but it seems strange to require the kernel to tell you
>> your endianness, when you can easily determine it yourself. Unless
>> there's something about this I don't understand.
>
>  Many MIPS processors do have a reverse-endian control bit, which allows a 
> user process to execute in the endianness opposite to the endianness the 
> kernel runs in.  The feature has been around since 1991 and the R4000 CPU, 
> however support is unlikely to be ever added to the MIPS/Linux port, due 
> to the complexity required for byte-swapping all the data structures 
> passed in memory between the kernel and the userland.  Does the PPC/Linux 
> port actually implement this swapping?

No. Userspace can change endian, but it has to cope with the kernel
being in the original endian.

cheers
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--0F1p//8PRICkK4MW
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Hi!

> =20
> -config DEBUG_RODATA
> +config STRICT_KERNEL_RWX
>  	bool "Make kernel text and rodata read-only" if ARCH_OPTIONAL_KERNEL_RWX
>  	depends on ARCH_HAS_STRICT_KERNEL_RWX
>  	default !ARCH_OPTIONAL_KERNEL_RWX ||

Debug features are expected to have runtime cost, so kconfig help is
silent about those. But there are runtime costs, right? It would be
nice to mention them in the help text...

								Pavel

--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

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Subject: Re: [PATCHv3 2/2] arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX
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On Thu, Feb 16, 2017 at 2:25 PM, Pavel Machek <pavel@ucw.cz> wrote:
> Hi!
>
>>
>> -config DEBUG_RODATA
>> +config STRICT_KERNEL_RWX
>>       bool "Make kernel text and rodata read-only" if ARCH_OPTIONAL_KERNEL_RWX
>>       depends on ARCH_HAS_STRICT_KERNEL_RWX
>>       default !ARCH_OPTIONAL_KERNEL_RWX ||
>
> Debug features are expected to have runtime cost, so kconfig help is
> silent about those. But there are runtime costs, right? It would be
> nice to mention them in the help text...

It depends on the architecture. The prior help text for arm said:

         The tradeoff is that each region is padded to section-size (1MiB)
         boundaries (because their permissions are different and splitting
         the 1M pages into 4K ones causes TLB performance problems), which
         can waste memory.

parisc (somewhat inaccurately) said:

         This option may have a slight performance impact because a
         portion of the kernel code won't be covered by a TLB anymore.

IIUC, arm64 does what parisc is hinting at: mappings at the end are
broken down to PAGE_SIZE. On x86, IIUC, there's actually no change to
TLB performance due to how the mappings are already set up.

I'm not sure the best way to express this in the new help text. Do you
have some suggestions on wording? Personally, I don't really think
it's worth mentioning this in Kconfig help, which, in theory, is
supposed to limit how technical it gets. And I think the performance
impact is almost entirely negligible compared to the risks addressed.

-Kees

-- 
Kees Cook
Pixel Security


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Subject: Re: [PATCHv3 2/2] arch: Rename CONFIG_DEBUG_RODATA and
 CONFIG_DEBUG_MODULE_RONX
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On 17.02.2017 02:08, Kees Cook wrote:
> On Thu, Feb 16, 2017 at 2:25 PM, Pavel Machek <pavel@ucw.cz> wrote:
>> Hi!
>>
>>>
>>> -config DEBUG_RODATA
>>> +config STRICT_KERNEL_RWX
>>>       bool "Make kernel text and rodata read-only" if ARCH_OPTIONAL_KERNEL_RWX
>>>       depends on ARCH_HAS_STRICT_KERNEL_RWX
>>>       default !ARCH_OPTIONAL_KERNEL_RWX ||
>>
>> Debug features are expected to have runtime cost, so kconfig help is
>> silent about those. But there are runtime costs, right? It would be
>> nice to mention them in the help text...
> 
> It depends on the architecture. The prior help text for arm said:
> 
>          The tradeoff is that each region is padded to section-size (1MiB)
>          boundaries (because their permissions are different and splitting
>          the 1M pages into 4K ones causes TLB performance problems), which
>          can waste memory.
> 
> parisc (somewhat inaccurately) said:
> 
>          This option may have a slight performance impact because a
>          portion of the kernel code won't be covered by a TLB anymore.

The logic on parisc is actually:
If huge page support is enabled, we map 1MB pages (and behave like arm wrt alignments).
If huge page support is disabled we stay at 4k/PAGE_SIZE pages (without 1M alignment).
 
> IIUC, arm64 does what parisc is hinting at: mappings at the end are
> broken down to PAGE_SIZE. 

On parisc we never implemented that.

> On x86, IIUC, there's actually no change to
> TLB performance due to how the mappings are already set up.
> 
> I'm not sure the best way to express this in the new help text. Do you
> have some suggestions on wording? Personally, I don't really think
> it's worth mentioning this in Kconfig help,

I agree on this.

> which, in theory, is
> supposed to limit how technical it gets. And I think the performance
> impact is almost entirely negligible compared to the risks addressed.

Helge


From - Thu Nov 08 21:39:38 2018
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Newsgroups: gmane.linux.power-management.general,gmane.linux.documentation,gmane.linux.kernel.hardened.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCHv3 2/2] arch: Rename CONFIG_DEBUG_RODATA and
 CONFIG_DEBUG_MODULE_RONX
Date: Fri, 17 Feb 2017 18:23:13 +0000
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Cc: Pavel Machek <pavel@ucw.cz>, Laura Abbott <labbott@redhat.com>,
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To: Kees Cook <keescook@chromium.org>
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On Thu, Feb 16, 2017 at 05:08:20PM -0800, Kees Cook wrote:
> On Thu, Feb 16, 2017 at 2:25 PM, Pavel Machek <pavel@ucw.cz> wrote:
> > Hi!
> >
> >>
> >> -config DEBUG_RODATA
> >> +config STRICT_KERNEL_RWX
> >>       bool "Make kernel text and rodata read-only" if ARCH_OPTIONAL_KERNEL_RWX
> >>       depends on ARCH_HAS_STRICT_KERNEL_RWX
> >>       default !ARCH_OPTIONAL_KERNEL_RWX ||
> >
> > Debug features are expected to have runtime cost, so kconfig help is
> > silent about those. But there are runtime costs, right? It would be
> > nice to mention them in the help text...
> 
> It depends on the architecture. The prior help text for arm said:
> 
>          The tradeoff is that each region is padded to section-size (1MiB)
>          boundaries (because their permissions are different and splitting
>          the 1M pages into 4K ones causes TLB performance problems), which
>          can waste memory.
> 
> parisc (somewhat inaccurately) said:
> 
>          This option may have a slight performance impact because a
>          portion of the kernel code won't be covered by a TLB anymore.
> 
> IIUC, arm64 does what parisc is hinting at: mappings at the end are
> broken down to PAGE_SIZE. On x86, IIUC, there's actually no change to
> TLB performance due to how the mappings are already set up.

On arm64, we split down to page granularity if needed, but use the
largest possible mapping we can (e.g. if we can use a 2M block, we do).

Because of the way we freed the init area, we already couldn't use
larger mappings anyway. Applying the strict permissions didn't come at a
measureable overhead in any real testing.

> I'm not sure the best way to express this in the new help text. Do you
> have some suggestions on wording? Personally, I don't really think
> it's worth mentioning this in Kconfig help, which, in theory, is
> supposed to limit how technical it gets. And I think the performance
> impact is almost entirely negligible compared to the risks addressed.

I also don't see much point in describing some hypothetical architecture
specific overhead here. In most cases this can't be turned off (so there
isn't anything to comapre it to, and hence no cost). Where people want
to turn it off, they already know why they wish to do so.

Thanks,
Mark.


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Subject: Re: [PATCHv3 2/2] arch: Rename CONFIG_DEBUG_RODATA and
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Date: Mon, 20 Feb 2017 08:21:30 +0100
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To: Kees Cook <keescook@chromium.org>
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* Kees Cook <keescook@chromium.org> wrote:

> On Thu, Feb 16, 2017 at 2:25 PM, Pavel Machek <pavel@ucw.cz> wrote:
> > Hi!
> >
> >>
> >> -config DEBUG_RODATA
> >> +config STRICT_KERNEL_RWX
> >>       bool "Make kernel text and rodata read-only" if ARCH_OPTIONAL_KERNEL_RWX
> >>       depends on ARCH_HAS_STRICT_KERNEL_RWX
> >>       default !ARCH_OPTIONAL_KERNEL_RWX ||
> >
> > Debug features are expected to have runtime cost, so kconfig help is
> > silent about those. But there are runtime costs, right? It would be
> > nice to mention them in the help text...
> 
> It depends on the architecture. The prior help text for arm said:
> 
>          The tradeoff is that each region is padded to section-size (1MiB)
>          boundaries (because their permissions are different and splitting
>          the 1M pages into 4K ones causes TLB performance problems), which
>          can waste memory.
> 
> parisc (somewhat inaccurately) said:
> 
>          This option may have a slight performance impact because a
>          portion of the kernel code won't be covered by a TLB anymore.
> 
> IIUC, arm64 does what parisc is hinting at: mappings at the end are
> broken down to PAGE_SIZE. On x86, IIUC, there's actually no change to
> TLB performance due to how the mappings are already set up.

BTW., a good strategy with RAM sizes above say 4GB would be to just round up to 
the next large-TLB boundary (2MB) and waste 0-2MB of RAM - which is only 0.05% of 
4GB of RAM. On most workloads, especially with SSDs it's probably a positive RAM 
vs. performance trade-off.

Thanks,

	Ingo


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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Remove flush_user_dcache_range and flush_user_icache_range
Date: Mon, 20 Feb 2017 14:02:46 -0500
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The functions flush_user_dcache_range() and flush_user_icache_range() =
are only used by the parisc
signal handling code.  This code only needs to flush a couple of lines, =
so the threshold check is unnecessary
overhead.

Signed-off-by: John David Anglin <dave.anglin@bell.net>



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diff --git a/arch/parisc/include/asm/cacheflush.h =
b/arch/parisc/include/asm/cacheflush.h
index 7bd69bd43a01..c7e15cc5c668 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -27,8 +27,6 @@ void flush_user_dcache_range_asm(unsigned long, =
unsigned long);
 void flush_kernel_dcache_range_asm(unsigned long, unsigned long);
 void flush_kernel_dcache_page_asm(void *);
 void flush_kernel_icache_page(void *);
-void flush_user_dcache_range(unsigned long, unsigned long);
-void flush_user_icache_range(unsigned long, unsigned long);
=20
 /* Cache flush operations */
=20
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 977f0a4f5ecf..aedadefc149e 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -573,24 +573,6 @@ void flush_cache_mm(struct mm_struct *mm)
 	}
 }
=20
-void
-flush_user_dcache_range(unsigned long start, unsigned long end)
-{
-	if ((end - start) < parisc_cache_flush_threshold)
-		flush_user_dcache_range_asm(start,end);
-	else
-		flush_data_cache();
-}
-
-void
-flush_user_icache_range(unsigned long start, unsigned long end)
-{
-	if ((end - start) < parisc_cache_flush_threshold)
-		flush_user_icache_range_asm(start,end);
-	else
-		flush_instruction_cache();
-}
-
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 2264f68f3c2f..120eefa39de9 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -232,6 +232,7 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, =
struct pt_regs *regs,
 	struct rt_sigframe __user *frame;
 	unsigned long rp, usp;
 	unsigned long haddr, sigframe_size;
+	unsigned long start, end;
 	int err =3D 0;
 #ifdef CONFIG_64BIT
 	struct compat_rt_sigframe __user * compat_frame;
@@ -299,10 +300,10 @@ setup_rt_frame(struct ksignal *ksig, sigset_t =
*set, struct pt_regs *regs,
 	}
 #endif
=20
-	flush_user_dcache_range((unsigned long) &frame->tramp[0],
-			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
-	flush_user_icache_range((unsigned long) &frame->tramp[0],
-			   (unsigned long) &frame->tramp[TRAMP_SIZE]);
+	start =3D (unsigned long) &frame->tramp[0];
+	end =3D (unsigned long) &frame->tramp[TRAMP_SIZE];
+	flush_user_dcache_range_asm(start, end);
+	flush_user_icache_range_asm(start, end);
=20
 	/* TRAMP Words 0-4, Length 5 =3D SIGRESTARTBLOCK_TRAMP
 	 * TRAMP Words 5-9, Length 4 =3D SIGRETURN_TRAMP
@@ -548,8 +549,8 @@ insert_restart_trampoline(struct pt_regs *regs)
 		WARN_ON(err);
=20
 		/* flush data/instruction cache for new insns */
-		flush_user_dcache_range(start, end);
-		flush_user_icache_range(start, end);
+		flush_user_dcache_range_asm(start, end);
+		flush_user_icache_range_asm(start, end);
=20
 		regs->gr[31] =3D regs->gr[30] + 8;
 		return;

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--
John David Anglin	dave.anglin@bell.net

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From: "Mr.Hassan Habib" <hh3584420@gmail.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Please I want you to patiently read this offer.?
Date: Wed, 22 Feb 2017 17:24:03 +0000 (UTC)
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Hello.

I know this means of communication may not be morally right to you as a person but I also have had a great thought about it and I have come to this conclusion which I am about to share with you.

INTRODUCTION:I am the Credit Manager U. B. A Bank of Burkina Faso Ouagadougou
and in one way or the other was hoping you will cooperate with me as a partner in a project of transferring an abandoned fund of a late customer of the bank worth of $18,000,000 (Eighteen Million Dollars US).

This will be disbursed or shared between the both of us in these percentages, 55% to me and 35% to you while 10% will be for expenses both parties might have incurred during the process of transferring.
I
await for your response so that we can commence on this project as soon as possible.

Reply to this Email:mr_habib2015@yahoo.com

Regards,
Mr.Hassan Habib.

Credit Manager U.B.A Bank of
Burkina Faso Ouagadougou

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From - Thu Nov 08 21:39:39 2018
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From: Qin's Yanjun <Qin.Yanjun@null.net>
Newsgroups: gmane.linux.ports.parisc
Subject: RE:
Date: Thu, 23 Feb 2017 20:09:29 +0500
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How are you today and your family? I require your attention and honest
co-operation about some issues which i will really want to discuss with you
which.  Looking forward to read from you soon.  

Qin's


______________________________

Sky Silk, http://aknet.kz

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From - Thu Nov 08 21:39:39 2018
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From: "Dmitry V. Levin" <ldv@altlinux.org>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: [PATCH] uapi: fix asm/signal.h userspace compilation errors
Date: Sun, 26 Feb 2017 04:01:56 +0300
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Cc: Russell King <linux@armlinux.org.uk>,
        Haavard Skinnemoen <hskinnemoen@gmail.com>,
        Hans-Christian Egtvedt <egtvedt@samfundet.no>,
        Mikael Starvik <starvik@axis.com>,
        Jesper Nilsson <jesper.nilsson@axis.com>,
        Yoshinori Sato <ysato@users.sourceforge.jp>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Ralf Baechle <ralf@linux-mips.org>,
        David Howells <dhowells@redhat.com>,
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To: Arnd Bergmann <arnd@arndb.de>
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Include <stddef.h> (guarded by #ifndef __KERNEL__) to fix asm/signal.h
userspace compilation errors like this:

/usr/include/asm/signal.h:126:2: error: unknown type name 'size_t'
  size_t ss_size;

As no uapi header provides a definition of size_t, inclusion
of <stddef.h> seems to be the most conservative fix available.

On the kernel side size_t is typedef'ed to __kernel_size_t, so
an alternative fix would be to change the type of sigaltstack.ss_size
from size_t to __kernel_size_t for all architectures except those where
sizeof(size_t) < sizeof(__kernel_size_t), namely, x32 and mips n32.

On x32 and mips n32, however, #include <stddef.h> seems to be the most
straightforward way to obtain the definition for sigaltstack.ss_size's
type.

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
---
 include/uapi/asm-generic/signal.h      | 3 +++
 arch/alpha/include/uapi/asm/signal.h   | 3 +++
 arch/arm/include/uapi/asm/signal.h     | 3 +++
 arch/avr32/include/uapi/asm/signal.h   | 3 +++
 arch/cris/include/uapi/asm/signal.h    | 3 +++
 arch/h8300/include/uapi/asm/signal.h   | 3 +++
 arch/ia64/include/uapi/asm/signal.h    | 4 ++++
 arch/m32r/include/uapi/asm/signal.h    | 3 +++
 arch/m68k/include/uapi/asm/signal.h    | 3 +++
 arch/mips/include/uapi/asm/signal.h    | 3 +++
 arch/mn10300/include/uapi/asm/signal.h | 3 +++
 arch/parisc/include/uapi/asm/signal.h  | 4 ++++
 arch/powerpc/include/uapi/asm/signal.h | 3 +++
 arch/s390/include/uapi/asm/signal.h    | 3 +++
 arch/sparc/include/uapi/asm/signal.h   | 3 +++
 arch/x86/include/uapi/asm/signal.h     | 3 +++
 arch/xtensa/include/uapi/asm/signal.h  | 2 ++
 17 files changed, 52 insertions(+)

diff --git a/include/uapi/asm-generic/signal.h b/include/uapi/asm-generic/signal.h
index 3094618..e618eab 100644
--- a/include/uapi/asm-generic/signal.h
+++ b/include/uapi/asm-generic/signal.h
@@ -100,6 +100,9 @@ typedef unsigned long old_sigset_t;
 #endif
 
 #ifndef __KERNEL__
+
+#include <stddef.h>	/* For size_t. */
+
 struct sigaction {
 	__sighandler_t sa_handler;
 	unsigned long sa_flags;
diff --git a/arch/alpha/include/uapi/asm/signal.h b/arch/alpha/include/uapi/asm/signal.h
index dd4ca4bc..74e09f6 100644
--- a/arch/alpha/include/uapi/asm/signal.h
+++ b/arch/alpha/include/uapi/asm/signal.h
@@ -94,6 +94,9 @@ typedef unsigned long sigset_t;
 #include <asm-generic/signal-defs.h>
 
 #ifndef __KERNEL__
+
+#include <stddef.h>	/* For size_t. */
+
 /* Here we must cater to libcs that poke about in kernel headers.  */
 
 struct sigaction {
diff --git a/arch/arm/include/uapi/asm/signal.h b/arch/arm/include/uapi/asm/signal.h
index 33073bd..a7b0012 100644
--- a/arch/arm/include/uapi/asm/signal.h
+++ b/arch/arm/include/uapi/asm/signal.h
@@ -93,6 +93,9 @@ typedef unsigned long sigset_t;
 #include <asm-generic/signal-defs.h>
 
 #ifndef __KERNEL__
+
+#include <stddef.h>	/* For size_t. */
+
 /* Here we must cater to libcs that poke about in kernel headers.  */
 
 struct sigaction {
diff --git a/arch/avr32/include/uapi/asm/signal.h b/arch/avr32/include/uapi/asm/signal.h
index ffe8c77..62f3b88 100644
--- a/arch/avr32/include/uapi/asm/signal.h
+++ b/arch/avr32/include/uapi/asm/signal.h
@@ -95,6 +95,9 @@ typedef unsigned long sigset_t;
 #include <asm-generic/signal-defs.h>
 
 #ifndef __KERNEL__
+
+#include <stddef.h>	/* For size_t. */
+
 /* Here we must cater to libcs that poke about in kernel headers.  */
 
 struct sigaction {
diff --git a/arch/cris/include/uapi/asm/signal.h b/arch/cris/include/uapi/asm/signal.h
index ce42fa7..bedff78 100644
--- a/arch/cris/include/uapi/asm/signal.h
+++ b/arch/cris/include/uapi/asm/signal.h
@@ -89,6 +89,9 @@ typedef unsigned long sigset_t;
 #include <asm-generic/signal-defs.h>
 
 #ifndef __KERNEL__
+
+#include <stddef.h>	/* For size_t. */
+
 /* Here we must cater to libcs that poke about in kernel headers.  */
 
 struct sigaction {
diff --git a/arch/h8300/include/uapi/asm/signal.h b/arch/h8300/include/uapi/asm/signal.h
index af3a6c3..361e2e5 100644
--- a/arch/h8300/include/uapi/asm/signal.h
+++ b/arch/h8300/include/uapi/asm/signal.h
@@ -88,6 +88,9 @@ typedef unsigned long sigset_t;
 #include <asm-generic/signal-defs.h>
 
 #ifndef __KERNEL__
+
+#include <stddef.h>	/* For size_t. */
+
 /* Here we must cater to libcs that poke about in kernel headers.  */
 
 struct sigaction {
diff --git a/arch/ia64/include/uapi/asm/signal.h b/arch/ia64/include/uapi/asm/signal.h
index c0ea285..b089bfc 100644
--- a/arch/ia64/include/uapi/asm/signal.h
+++ b/arch/ia64/include/uapi/asm/signal.h
@@ -107,6 +107,10 @@
 
 #  include <linux/types.h>
 
+#  ifndef __KERNEL__
+#   include <stddef.h>	/* For size_t. */
+#  endif
+
 /* Avoid too many header ordering problems.  */
 struct siginfo;
 
diff --git a/arch/m32r/include/uapi/asm/signal.h b/arch/m32r/include/uapi/asm/signal.h
index 54acacb..269ec39 100644
--- a/arch/m32r/include/uapi/asm/signal.h
+++ b/arch/m32r/include/uapi/asm/signal.h
@@ -90,6 +90,9 @@ typedef unsigned long sigset_t;
 #include <asm-generic/signal-defs.h>
 
 #ifndef __KERNEL__
+
+#include <stddef.h>	/* For size_t. */
+
 /* Here we must cater to libcs that poke about in kernel headers.  */
 
 struct sigaction {
diff --git a/arch/m68k/include/uapi/asm/signal.h b/arch/m68k/include/uapi/asm/signal.h
index cba6f85..f6a409e 100644
--- a/arch/m68k/include/uapi/asm/signal.h
+++ b/arch/m68k/include/uapi/asm/signal.h
@@ -86,6 +86,9 @@ typedef unsigned long sigset_t;
 #include <asm-generic/signal-defs.h>
 
 #ifndef __KERNEL__
+
+#include <stddef.h>	/* For size_t. */
+
 /* Here we must cater to libcs that poke about in kernel headers.  */
 
 struct sigaction {
diff --git a/arch/mips/include/uapi/asm/signal.h b/arch/mips/include/uapi/asm/signal.h
index addb9f5..744fd71 100644
--- a/arch/mips/include/uapi/asm/signal.h
+++ b/arch/mips/include/uapi/asm/signal.h
@@ -101,6 +101,9 @@ typedef unsigned long old_sigset_t;		/* at least 32 bits */
 #include <asm-generic/signal-defs.h>
 
 #ifndef __KERNEL__
+
+#include <stddef.h>	/* For size_t. */
+
 struct sigaction {
 	unsigned int	sa_flags;
 	__sighandler_t	sa_handler;
diff --git a/arch/mn10300/include/uapi/asm/signal.h b/arch/mn10300/include/uapi/asm/signal.h
index f423a08..2e79c71 100644
--- a/arch/mn10300/include/uapi/asm/signal.h
+++ b/arch/mn10300/include/uapi/asm/signal.h
@@ -98,6 +98,9 @@ typedef unsigned long sigset_t;
 #include <asm-generic/signal-defs.h>
 
 #ifndef __KERNEL__
+
+#include <stddef.h>	/* For size_t. */
+
 /* Here we must cater to libcs that poke about in kernel headers.  */
 
 struct sigaction {
diff --git a/arch/parisc/include/uapi/asm/signal.h b/arch/parisc/include/uapi/asm/signal.h
index e26043b..6c6c979 100644
--- a/arch/parisc/include/uapi/asm/signal.h
+++ b/arch/parisc/include/uapi/asm/signal.h
@@ -81,6 +81,10 @@
 
 #  include <linux/types.h>
 
+#  ifndef __KERNEL__
+#   include <stddef.h>	/* For size_t. */
+#  endif
+
 /* Avoid too many header ordering problems.  */
 struct siginfo;
 
diff --git a/arch/powerpc/include/uapi/asm/signal.h b/arch/powerpc/include/uapi/asm/signal.h
index 6c69ee9..fba7738 100644
--- a/arch/powerpc/include/uapi/asm/signal.h
+++ b/arch/powerpc/include/uapi/asm/signal.h
@@ -91,6 +91,9 @@ typedef struct {
 #include <asm-generic/signal-defs.h>
 
 #ifndef __KERNEL__
+
+#include <stddef.h>	/* For size_t. */
+
 struct old_sigaction {
 	__sighandler_t sa_handler;
 	old_sigset_t sa_mask;
diff --git a/arch/s390/include/uapi/asm/signal.h b/arch/s390/include/uapi/asm/signal.h
index 2f43cfb..306373b6a 100644
--- a/arch/s390/include/uapi/asm/signal.h
+++ b/arch/s390/include/uapi/asm/signal.h
@@ -96,6 +96,9 @@ typedef unsigned long sigset_t;
 #include <asm-generic/signal-defs.h>
 
 #ifndef __KERNEL__
+
+#include <stddef.h>	/* For size_t. */
+
 /* Here we must cater to libcs that poke about in kernel headers.  */
 
 struct sigaction {
diff --git a/arch/sparc/include/uapi/asm/signal.h b/arch/sparc/include/uapi/asm/signal.h
index f387400..3b4664c 100644
--- a/arch/sparc/include/uapi/asm/signal.h
+++ b/arch/sparc/include/uapi/asm/signal.h
@@ -154,6 +154,9 @@ struct sigstack {
 #include <asm-generic/signal-defs.h>
 
 #ifndef __KERNEL__
+
+#include <stddef.h>	/* For size_t. */
+
 struct __new_sigaction {
 	__sighandler_t		sa_handler;
 	unsigned long		sa_flags;
diff --git a/arch/x86/include/uapi/asm/signal.h b/arch/x86/include/uapi/asm/signal.h
index 8264f47..2d6db1d 100644
--- a/arch/x86/include/uapi/asm/signal.h
+++ b/arch/x86/include/uapi/asm/signal.h
@@ -96,6 +96,9 @@ typedef unsigned long sigset_t;
 
 
 # ifndef __KERNEL__
+
+#  include <stddef.h>	/* For size_t. */
+
 /* Here we must cater to libcs that poke about in kernel headers.  */
 #ifdef __i386__
 
diff --git a/arch/xtensa/include/uapi/asm/signal.h b/arch/xtensa/include/uapi/asm/signal.h
index 586756e..bbc9b14 100644
--- a/arch/xtensa/include/uapi/asm/signal.h
+++ b/arch/xtensa/include/uapi/asm/signal.h
@@ -106,6 +106,8 @@ typedef struct {
 
 #ifndef __KERNEL__
 
+#include <stddef.h>	/* For size_t. */
+
 /* Here we must cater to libcs that poke about in kernel headers.  */
 
 struct sigaction {
-- 
ldv

From - Thu Nov 08 21:39:39 2018
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: Re: [PATCH] uapi: fix asm/signal.h userspace compilation errors
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To: "Dmitry V. Levin" <ldv@altlinux.org>
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On Sun, Feb 26, 2017 at 2:01 AM, Dmitry V. Levin <ldv@altlinux.org> wrote:
> Include <stddef.h> (guarded by #ifndef __KERNEL__) to fix asm/signal.h
> userspace compilation errors like this:
>
> /usr/include/asm/signal.h:126:2: error: unknown type name 'size_t'
>   size_t ss_size;
>
> As no uapi header provides a definition of size_t, inclusion
> of <stddef.h> seems to be the most conservative fix available.
>
> On the kernel side size_t is typedef'ed to __kernel_size_t, so
> an alternative fix would be to change the type of sigaltstack.ss_size
> from size_t to __kernel_size_t for all architectures except those where
> sizeof(size_t) < sizeof(__kernel_size_t), namely, x32 and mips n32.
>
> On x32 and mips n32, however, #include <stddef.h> seems to be the most
> straightforward way to obtain the definition for sigaltstack.ss_size's
> type.
>
> Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>

I'm not sure if this is the best fix. We generally should not include one
standard header from another standard header. Would it be possible
to use __kernel_size_t instead of size_t?

     Arnd



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From: "Dmitry V. Levin" <ldv@altlinux.org>
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Subject: [PATCH v2] uapi: fix asm/signal.h userspace compilation errors
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Cc: Russell King <linux@armlinux.org.uk>,
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        Martin Schwidefsky <schwidefsky@de.ibm.com>,
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To: Arnd Bergmann <arnd@arndb.de>
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Replace size_t with __kernel_size_t to fix asm/signal.h userspace
compilation errors like this:

/usr/include/asm-generic/signal.h:116:2: error: unknown type name 'size_t'
  size_t ss_size;

This change is not applicable to x86 port because x32 is the only
architecture where sizeof(size_t) < sizeof(__kernel_size_t).

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
---
v2: create a separate patch for x86,
    replace size_t with __kernel_size_t instead of including <stddef.h>.

 include/uapi/asm-generic/signal.h      | 2 +-
 arch/alpha/include/uapi/asm/signal.h   | 2 +-
 arch/arm/include/uapi/asm/signal.h     | 2 +-
 arch/avr32/include/uapi/asm/signal.h   | 2 +-
 arch/cris/include/uapi/asm/signal.h    | 2 +-
 arch/h8300/include/uapi/asm/signal.h   | 2 +-
 arch/ia64/include/uapi/asm/signal.h    | 2 +-
 arch/m32r/include/uapi/asm/signal.h    | 2 +-
 arch/m68k/include/uapi/asm/signal.h    | 2 +-
 arch/mips/include/uapi/asm/signal.h    | 2 +-
 arch/mn10300/include/uapi/asm/signal.h | 2 +-
 arch/parisc/include/uapi/asm/signal.h  | 2 +-
 arch/powerpc/include/uapi/asm/signal.h | 2 +-
 arch/s390/include/uapi/asm/signal.h    | 2 +-
 arch/sparc/include/uapi/asm/signal.h   | 2 +-
 arch/xtensa/include/uapi/asm/signal.h  | 2 +-
 16 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/include/uapi/asm-generic/signal.h b/include/uapi/asm-generic/signal.h
index 3094618..6bbcdfa 100644
--- a/include/uapi/asm-generic/signal.h
+++ b/include/uapi/asm-generic/signal.h
@@ -113,7 +113,7 @@ struct sigaction {
 typedef struct sigaltstack {
 	void __user *ss_sp;
 	int ss_flags;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 } stack_t;
 
 #endif /* __ASSEMBLY__ */
diff --git a/arch/alpha/include/uapi/asm/signal.h b/arch/alpha/include/uapi/asm/signal.h
index dd4ca4bc..16a2217 100644
--- a/arch/alpha/include/uapi/asm/signal.h
+++ b/arch/alpha/include/uapi/asm/signal.h
@@ -113,7 +113,7 @@ struct sigaction {
 typedef struct sigaltstack {
 	void __user *ss_sp;
 	int ss_flags;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 } stack_t;
 
 /* sigstack(2) is deprecated, and will be withdrawn in a future version
diff --git a/arch/arm/include/uapi/asm/signal.h b/arch/arm/include/uapi/asm/signal.h
index 33073bd..859f2de 100644
--- a/arch/arm/include/uapi/asm/signal.h
+++ b/arch/arm/include/uapi/asm/signal.h
@@ -113,7 +113,7 @@ struct sigaction {
 typedef struct sigaltstack {
 	void __user *ss_sp;
 	int ss_flags;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 } stack_t;
 
 
diff --git a/arch/avr32/include/uapi/asm/signal.h b/arch/avr32/include/uapi/asm/signal.h
index ffe8c77..46af348 100644
--- a/arch/avr32/include/uapi/asm/signal.h
+++ b/arch/avr32/include/uapi/asm/signal.h
@@ -115,7 +115,7 @@ struct sigaction {
 typedef struct sigaltstack {
 	void __user *ss_sp;
 	int ss_flags;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 } stack_t;
 
 #endif /* _UAPI__ASM_AVR32_SIGNAL_H */
diff --git a/arch/cris/include/uapi/asm/signal.h b/arch/cris/include/uapi/asm/signal.h
index ce42fa7..02149d2 100644
--- a/arch/cris/include/uapi/asm/signal.h
+++ b/arch/cris/include/uapi/asm/signal.h
@@ -109,7 +109,7 @@ struct sigaction {
 typedef struct sigaltstack {
 	void *ss_sp;
 	int ss_flags;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 } stack_t;
 
 
diff --git a/arch/h8300/include/uapi/asm/signal.h b/arch/h8300/include/uapi/asm/signal.h
index af3a6c3..0b1825d 100644
--- a/arch/h8300/include/uapi/asm/signal.h
+++ b/arch/h8300/include/uapi/asm/signal.h
@@ -108,7 +108,7 @@ struct sigaction {
 typedef struct sigaltstack {
 	void *ss_sp;
 	int ss_flags;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 } stack_t;
 
 
diff --git a/arch/ia64/include/uapi/asm/signal.h b/arch/ia64/include/uapi/asm/signal.h
index c0ea285..04604da 100644
--- a/arch/ia64/include/uapi/asm/signal.h
+++ b/arch/ia64/include/uapi/asm/signal.h
@@ -113,7 +113,7 @@ struct siginfo;
 typedef struct sigaltstack {
 	void __user *ss_sp;
 	int ss_flags;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 } stack_t;
 
 
diff --git a/arch/m32r/include/uapi/asm/signal.h b/arch/m32r/include/uapi/asm/signal.h
index 54acacb..a7f5c0b 100644
--- a/arch/m32r/include/uapi/asm/signal.h
+++ b/arch/m32r/include/uapi/asm/signal.h
@@ -110,7 +110,7 @@ struct sigaction {
 typedef struct sigaltstack {
 	void __user *ss_sp;
 	int ss_flags;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 } stack_t;
 
 
diff --git a/arch/m68k/include/uapi/asm/signal.h b/arch/m68k/include/uapi/asm/signal.h
index cba6f85..387fddc 100644
--- a/arch/m68k/include/uapi/asm/signal.h
+++ b/arch/m68k/include/uapi/asm/signal.h
@@ -106,7 +106,7 @@ struct sigaction {
 typedef struct sigaltstack {
 	void __user *ss_sp;
 	int ss_flags;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 } stack_t;
 
 #endif /* _UAPI_M68K_SIGNAL_H */
diff --git a/arch/mips/include/uapi/asm/signal.h b/arch/mips/include/uapi/asm/signal.h
index addb9f5..6ec6885 100644
--- a/arch/mips/include/uapi/asm/signal.h
+++ b/arch/mips/include/uapi/asm/signal.h
@@ -111,7 +111,7 @@ struct sigaction {
 /* IRIX compatible stack_t  */
 typedef struct sigaltstack {
 	void __user *ss_sp;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 	int ss_flags;
 } stack_t;
 
diff --git a/arch/mn10300/include/uapi/asm/signal.h b/arch/mn10300/include/uapi/asm/signal.h
index f423a08..c17d363 100644
--- a/arch/mn10300/include/uapi/asm/signal.h
+++ b/arch/mn10300/include/uapi/asm/signal.h
@@ -118,7 +118,7 @@ struct sigaction {
 typedef struct sigaltstack {
 	void __user	*ss_sp;
 	int		ss_flags;
-	size_t		ss_size;
+	__kernel_size_t		ss_size;
 } stack_t;
 
 
diff --git a/arch/parisc/include/uapi/asm/signal.h b/arch/parisc/include/uapi/asm/signal.h
index e26043b..403e2d8 100644
--- a/arch/parisc/include/uapi/asm/signal.h
+++ b/arch/parisc/include/uapi/asm/signal.h
@@ -99,7 +99,7 @@ typedef __signalfn_t __user *__sighandler_t;
 typedef struct sigaltstack {
 	void __user *ss_sp;
 	int ss_flags;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 } stack_t;
 
 #endif /* !__ASSEMBLY */
diff --git a/arch/powerpc/include/uapi/asm/signal.h b/arch/powerpc/include/uapi/asm/signal.h
index 6c69ee9..c1c2a0b 100644
--- a/arch/powerpc/include/uapi/asm/signal.h
+++ b/arch/powerpc/include/uapi/asm/signal.h
@@ -109,7 +109,7 @@ struct sigaction {
 typedef struct sigaltstack {
 	void __user *ss_sp;
 	int ss_flags;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 } stack_t;
 
 
diff --git a/arch/s390/include/uapi/asm/signal.h b/arch/s390/include/uapi/asm/signal.h
index 2f43cfb..b8c2db6 100644
--- a/arch/s390/include/uapi/asm/signal.h
+++ b/arch/s390/include/uapi/asm/signal.h
@@ -122,7 +122,7 @@ struct sigaction {
 typedef struct sigaltstack {
         void __user *ss_sp;
         int ss_flags;
-        size_t ss_size;
+        __kernel_size_t ss_size;
 } stack_t;
 
 
diff --git a/arch/sparc/include/uapi/asm/signal.h b/arch/sparc/include/uapi/asm/signal.h
index f387400..cd6c036 100644
--- a/arch/sparc/include/uapi/asm/signal.h
+++ b/arch/sparc/include/uapi/asm/signal.h
@@ -172,7 +172,7 @@ struct __old_sigaction {
 typedef struct sigaltstack {
 	void			__user *ss_sp;
 	int			ss_flags;
-	size_t			ss_size;
+	__kernel_size_t			ss_size;
 } stack_t;
 
 
diff --git a/arch/xtensa/include/uapi/asm/signal.h b/arch/xtensa/include/uapi/asm/signal.h
index 586756e..d835627 100644
--- a/arch/xtensa/include/uapi/asm/signal.h
+++ b/arch/xtensa/include/uapi/asm/signal.h
@@ -126,7 +126,7 @@ struct sigaction {
 typedef struct sigaltstack {
 	void *ss_sp;
 	int ss_flags;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 } stack_t;
 
 #endif	/* __ASSEMBLY__ */
-- 
ldv

From - Thu Nov 08 21:39:39 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: "Dmitry V. Levin" <ldv@altlinux.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: [PATCH 1/3] uapi: fix asm/msgbuf.h userspace compilation errors
Date: Thu, 2 Mar 2017 03:22:03 +0300
Lines: 213
Approved: news@gmane.org
Message-ID: <20170302002202.GA27132@altlinux.org>
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Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>,
        Hans-Christian Egtvedt <egtvedt@samfundet.no>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
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        David Howells <dhowells@redhat.com>,
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        Helge Deller <deller@gmx.de>,
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        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
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        linux-alpha@vger.kernel.org, linux-ia64@vger.kernel.org,
        linux-mips@linux-mips.org, linux-am33-list
To: Arnd Bergmann <arnd@arndb.de>
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Include <asm/ipcbuf.h> to fix asm/msgbuf.h userspace compilation errors
like this:

/usr/include/asm-generic/msgbuf.h:25:20: error: field 'msg_perm' has incomplete type
  struct ipc64_perm msg_perm;
/usr/include/asm-generic/msgbuf.h:26:2: error: unknown type name '__kernel_time_t'
  __kernel_time_t msg_stime; /* last msgsnd time */
/usr/include/asm-generic/msgbuf.h:30:2: error: unknown type name '__kernel_time_t'
  __kernel_time_t msg_rtime; /* last msgrcv time */
/usr/include/asm-generic/msgbuf.h:34:2: error: unknown type name '__kernel_time_t'
  __kernel_time_t msg_ctime; /* last change time */
/usr/include/asm-generic/msgbuf.h:38:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t msg_cbytes; /* current number of bytes on queue */
/usr/include/asm-generic/msgbuf.h:39:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t msg_qnum; /* number of messages in queue */
/usr/include/asm-generic/msgbuf.h:40:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t msg_qbytes; /* max number of bytes on queue */
/usr/include/asm-generic/msgbuf.h:41:2: error: unknown type name '__kernel_pid_t'
  __kernel_pid_t msg_lspid; /* pid of last msgsnd */
/usr/include/asm-generic/msgbuf.h:42:2: error: unknown type name '__kernel_pid_t'
  __kernel_pid_t msg_lrpid; /* last receive pid */
/usr/include/asm-generic/msgbuf.h:43:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t __unused4;
/usr/include/asm-generic/msgbuf.h:44:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t __unused5;

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
---
 include/uapi/asm-generic/msgbuf.h      | 1 +
 arch/alpha/include/uapi/asm/msgbuf.h   | 2 ++
 arch/avr32/include/uapi/asm/msgbuf.h   | 2 ++
 arch/frv/include/uapi/asm/msgbuf.h     | 2 ++
 arch/ia64/include/uapi/asm/msgbuf.h    | 2 ++
 arch/m32r/include/uapi/asm/msgbuf.h    | 2 ++
 arch/mips/include/uapi/asm/msgbuf.h    | 1 +
 arch/mn10300/include/uapi/asm/msgbuf.h | 2 ++
 arch/parisc/include/uapi/asm/msgbuf.h  | 1 +
 arch/powerpc/include/uapi/asm/msgbuf.h | 2 ++
 arch/s390/include/uapi/asm/msgbuf.h    | 2 ++
 arch/sparc/include/uapi/asm/msgbuf.h   | 2 ++
 arch/xtensa/include/uapi/asm/msgbuf.h  | 2 ++
 13 files changed, 23 insertions(+)

diff --git a/include/uapi/asm-generic/msgbuf.h b/include/uapi/asm-generic/msgbuf.h
index f55ecc4..f3c3b43 100644
--- a/include/uapi/asm-generic/msgbuf.h
+++ b/include/uapi/asm-generic/msgbuf.h
@@ -1,6 +1,7 @@
 #ifndef __ASM_GENERIC_MSGBUF_H
 #define __ASM_GENERIC_MSGBUF_H
 
+#include <asm/ipcbuf.h>
 #include <asm/bitsperlong.h>
 /*
  * generic msqid64_ds structure.
diff --git a/arch/alpha/include/uapi/asm/msgbuf.h b/arch/alpha/include/uapi/asm/msgbuf.h
index 9849650..8de899a 100644
--- a/arch/alpha/include/uapi/asm/msgbuf.h
+++ b/arch/alpha/include/uapi/asm/msgbuf.h
@@ -1,6 +1,8 @@
 #ifndef _ALPHA_MSGBUF_H
 #define _ALPHA_MSGBUF_H
 
+#include <asm/ipcbuf.h>
+
 /* 
  * The msqid64_ds structure for alpha architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/avr32/include/uapi/asm/msgbuf.h b/arch/avr32/include/uapi/asm/msgbuf.h
index 9eae6ef..45cdffb 100644
--- a/arch/avr32/include/uapi/asm/msgbuf.h
+++ b/arch/avr32/include/uapi/asm/msgbuf.h
@@ -1,6 +1,8 @@
 #ifndef _UAPI__ASM_AVR32_MSGBUF_H
 #define _UAPI__ASM_AVR32_MSGBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The msqid64_ds structure for i386 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/frv/include/uapi/asm/msgbuf.h b/arch/frv/include/uapi/asm/msgbuf.h
index 97ceb55..92d6656 100644
--- a/arch/frv/include/uapi/asm/msgbuf.h
+++ b/arch/frv/include/uapi/asm/msgbuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_MSGBUF_H
 #define _ASM_MSGBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The msqid64_ds structure for FR-V architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/ia64/include/uapi/asm/msgbuf.h b/arch/ia64/include/uapi/asm/msgbuf.h
index 6c64c0d..9a31b60 100644
--- a/arch/ia64/include/uapi/asm/msgbuf.h
+++ b/arch/ia64/include/uapi/asm/msgbuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_IA64_MSGBUF_H
 #define _ASM_IA64_MSGBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The msqid64_ds structure for IA-64 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/m32r/include/uapi/asm/msgbuf.h b/arch/m32r/include/uapi/asm/msgbuf.h
index 0d5a877..4786c0c 100644
--- a/arch/m32r/include/uapi/asm/msgbuf.h
+++ b/arch/m32r/include/uapi/asm/msgbuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_M32R_MSGBUF_H
 #define _ASM_M32R_MSGBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The msqid64_ds structure for m32r architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/mips/include/uapi/asm/msgbuf.h b/arch/mips/include/uapi/asm/msgbuf.h
index df849e8..c84a388 100644
--- a/arch/mips/include/uapi/asm/msgbuf.h
+++ b/arch/mips/include/uapi/asm/msgbuf.h
@@ -1,6 +1,7 @@
 #ifndef _ASM_MSGBUF_H
 #define _ASM_MSGBUF_H
 
+#include <asm/ipcbuf.h>
 
 /*
  * The msqid64_ds structure for the MIPS architecture.
diff --git a/arch/mn10300/include/uapi/asm/msgbuf.h b/arch/mn10300/include/uapi/asm/msgbuf.h
index 8b60245..f1c5dd5 100644
--- a/arch/mn10300/include/uapi/asm/msgbuf.h
+++ b/arch/mn10300/include/uapi/asm/msgbuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_MSGBUF_H
 #define _ASM_MSGBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The msqid64_ds structure for MN10300 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/parisc/include/uapi/asm/msgbuf.h b/arch/parisc/include/uapi/asm/msgbuf.h
index 2e83ac7..c70f1d3 100644
--- a/arch/parisc/include/uapi/asm/msgbuf.h
+++ b/arch/parisc/include/uapi/asm/msgbuf.h
@@ -1,6 +1,7 @@
 #ifndef _PARISC_MSGBUF_H
 #define _PARISC_MSGBUF_H
 
+#include <asm/ipcbuf.h>
 #include <asm/bitsperlong.h>
 
 /* 
diff --git a/arch/powerpc/include/uapi/asm/msgbuf.h b/arch/powerpc/include/uapi/asm/msgbuf.h
index dd76743..3b87d25 100644
--- a/arch/powerpc/include/uapi/asm/msgbuf.h
+++ b/arch/powerpc/include/uapi/asm/msgbuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_POWERPC_MSGBUF_H
 #define _ASM_POWERPC_MSGBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The msqid64_ds structure for the PowerPC architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/s390/include/uapi/asm/msgbuf.h b/arch/s390/include/uapi/asm/msgbuf.h
index 1bbdee9..ab04112 100644
--- a/arch/s390/include/uapi/asm/msgbuf.h
+++ b/arch/s390/include/uapi/asm/msgbuf.h
@@ -1,6 +1,8 @@
 #ifndef _S390_MSGBUF_H
 #define _S390_MSGBUF_H
 
+#include <asm/ipcbuf.h>
+
 /* 
  * The msqid64_ds structure for S/390 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/sparc/include/uapi/asm/msgbuf.h b/arch/sparc/include/uapi/asm/msgbuf.h
index efc7cbe9..699f631 100644
--- a/arch/sparc/include/uapi/asm/msgbuf.h
+++ b/arch/sparc/include/uapi/asm/msgbuf.h
@@ -1,6 +1,8 @@
 #ifndef _SPARC_MSGBUF_H
 #define _SPARC_MSGBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The msqid64_ds structure for sparc64 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/xtensa/include/uapi/asm/msgbuf.h b/arch/xtensa/include/uapi/asm/msgbuf.h
index 693c967..b75458b 100644
--- a/arch/xtensa/include/uapi/asm/msgbuf.h
+++ b/arch/xtensa/include/uapi/asm/msgbuf.h
@@ -17,6 +17,8 @@
 #ifndef _XTENSA_MSGBUF_H
 #define _XTENSA_MSGBUF_H
 
+#include <asm/ipcbuf.h>
+
 struct msqid64_ds {
 	struct ipc64_perm msg_perm;
 #ifdef __XTENSA_EB__
-- 
ldv



From - Thu Nov 08 21:39:39 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: "Dmitry V. Levin" <ldv@altlinux.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: [PATCH 2/3] uapi: fix asm/sembuf.h userspace compilation errors
Date: Thu, 2 Mar 2017 03:22:28 +0300
Lines: 221
Approved: news@gmane.org
Message-ID: <20170302002228.GB27132@altlinux.org>
References: <CAK8P3a3Ptm68i43BT5+kWptDw1koPwexpuFwH3-1naj_xi+arQ@mail.gmail.com>
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Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>,
        Hans-Christian Egtvedt <egtvedt@samfundet.no>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Ralf Baechle <ralf@linux-mips.org>,
        David Howells <dhowells@redhat.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        "David S. Miller" <davem@davemloft.net>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
        Chris Zankel <chris@zankel.net>,
        Max Filippov <jcmvbkbc@gmail.com>,
To: Arnd Bergmann <arnd@arndb.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/58119>

Include <asm/ipcbuf.h> to fix asm/sembuf.h userspace compilation errors
like this:

/usr/include/asm/sembuf.h:14:20: error: field 'sem_perm' has incomplete type
  struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
/usr/include/asm/sembuf.h:15:2: error: unknown type name '__kernel_time_t'
  __kernel_time_t sem_otime; /* last semop time */
/usr/include/asm/sembuf.h:16:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t __unused1;
/usr/include/asm/sembuf.h:17:2: error: unknown type name '__kernel_time_t'
  __kernel_time_t sem_ctime; /* last change time */
/usr/include/asm/sembuf.h:18:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t __unused2;
/usr/include/asm/sembuf.h:19:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t sem_nsems; /* no. of semaphores in array */
/usr/include/asm/sembuf.h:20:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t __unused3;
/usr/include/asm/sembuf.h:21:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t __unused4;

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
---
 include/uapi/asm-generic/sembuf.h      | 1 +
 arch/alpha/include/uapi/asm/sembuf.h   | 2 ++
 arch/avr32/include/uapi/asm/sembuf.h   | 2 ++
 arch/frv/include/uapi/asm/sembuf.h     | 2 ++
 arch/ia64/include/uapi/asm/sembuf.h    | 2 ++
 arch/m32r/include/uapi/asm/sembuf.h    | 2 ++
 arch/mips/include/uapi/asm/sembuf.h    | 2 ++
 arch/mn10300/include/uapi/asm/sembuf.h | 2 ++
 arch/parisc/include/uapi/asm/sembuf.h  | 1 +
 arch/powerpc/include/uapi/asm/sembuf.h | 2 ++
 arch/s390/include/uapi/asm/sembuf.h    | 2 ++
 arch/sparc/include/uapi/asm/sembuf.h   | 2 ++
 arch/x86/include/uapi/asm/sembuf.h     | 2 ++
 arch/xtensa/include/uapi/asm/sembuf.h  | 1 +
 14 files changed, 25 insertions(+)

diff --git a/include/uapi/asm-generic/sembuf.h b/include/uapi/asm-generic/sembuf.h
index 4cb2c13..1d910d7 100644
--- a/include/uapi/asm-generic/sembuf.h
+++ b/include/uapi/asm-generic/sembuf.h
@@ -1,6 +1,7 @@
 #ifndef __ASM_GENERIC_SEMBUF_H
 #define __ASM_GENERIC_SEMBUF_H
 
+#include <asm/ipcbuf.h>
 #include <asm/bitsperlong.h>
 
 /*
diff --git a/arch/alpha/include/uapi/asm/sembuf.h b/arch/alpha/include/uapi/asm/sembuf.h
index 7b38b15..b6bdd5f 100644
--- a/arch/alpha/include/uapi/asm/sembuf.h
+++ b/arch/alpha/include/uapi/asm/sembuf.h
@@ -1,6 +1,8 @@
 #ifndef _ALPHA_SEMBUF_H
 #define _ALPHA_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /* 
  * The semid64_ds structure for alpha architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/avr32/include/uapi/asm/sembuf.h b/arch/avr32/include/uapi/asm/sembuf.h
index 6c6f7cf..ec4ddd6 100644
--- a/arch/avr32/include/uapi/asm/sembuf.h
+++ b/arch/avr32/include/uapi/asm/sembuf.h
@@ -1,6 +1,8 @@
 #ifndef _UAPI__ASM_AVR32_SEMBUF_H
 #define _UAPI__ASM_AVR32_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
 * The semid64_ds structure for AVR32 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/frv/include/uapi/asm/sembuf.h b/arch/frv/include/uapi/asm/sembuf.h
index 164b127..0d73641 100644
--- a/arch/frv/include/uapi/asm/sembuf.h
+++ b/arch/frv/include/uapi/asm/sembuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_SEMBUF_H
 #define _ASM_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The semid64_ds structure for FR-V architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/ia64/include/uapi/asm/sembuf.h b/arch/ia64/include/uapi/asm/sembuf.h
index 1340fbc..2e218b0 100644
--- a/arch/ia64/include/uapi/asm/sembuf.h
+++ b/arch/ia64/include/uapi/asm/sembuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_IA64_SEMBUF_H
 #define _ASM_IA64_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The semid64_ds structure for IA-64 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/m32r/include/uapi/asm/sembuf.h b/arch/m32r/include/uapi/asm/sembuf.h
index c9873d6..58ad1f8 100644
--- a/arch/m32r/include/uapi/asm/sembuf.h
+++ b/arch/m32r/include/uapi/asm/sembuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_M32R_SEMBUF_H
 #define _ASM_M32R_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The semid64_ds structure for m32r architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/mips/include/uapi/asm/sembuf.h b/arch/mips/include/uapi/asm/sembuf.h
index e1085ac..a55ab3c 100644
--- a/arch/mips/include/uapi/asm/sembuf.h
+++ b/arch/mips/include/uapi/asm/sembuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_SEMBUF_H
 #define _ASM_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The semid64_ds structure for the MIPS architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/mn10300/include/uapi/asm/sembuf.h b/arch/mn10300/include/uapi/asm/sembuf.h
index 301f3f9..3529f55 100644
--- a/arch/mn10300/include/uapi/asm/sembuf.h
+++ b/arch/mn10300/include/uapi/asm/sembuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_SEMBUF_H
 #define _ASM_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The semid64_ds structure for MN10300 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/parisc/include/uapi/asm/sembuf.h b/arch/parisc/include/uapi/asm/sembuf.h
index c20971b..cff5e43 100644
--- a/arch/parisc/include/uapi/asm/sembuf.h
+++ b/arch/parisc/include/uapi/asm/sembuf.h
@@ -1,6 +1,7 @@
 #ifndef _PARISC_SEMBUF_H
 #define _PARISC_SEMBUF_H
 
+#include <asm/ipcbuf.h>
 #include <asm/bitsperlong.h>
 
 /* 
diff --git a/arch/powerpc/include/uapi/asm/sembuf.h b/arch/powerpc/include/uapi/asm/sembuf.h
index 99a4193..d001c0a 100644
--- a/arch/powerpc/include/uapi/asm/sembuf.h
+++ b/arch/powerpc/include/uapi/asm/sembuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_POWERPC_SEMBUF_H
 #define _ASM_POWERPC_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
diff --git a/arch/s390/include/uapi/asm/sembuf.h b/arch/s390/include/uapi/asm/sembuf.h
index 32626b0..734c9de 100644
--- a/arch/s390/include/uapi/asm/sembuf.h
+++ b/arch/s390/include/uapi/asm/sembuf.h
@@ -1,6 +1,8 @@
 #ifndef _S390_SEMBUF_H
 #define _S390_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /* 
  * The semid64_ds structure for S/390 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/sparc/include/uapi/asm/sembuf.h b/arch/sparc/include/uapi/asm/sembuf.h
index faee1be..28f7060 100644
--- a/arch/sparc/include/uapi/asm/sembuf.h
+++ b/arch/sparc/include/uapi/asm/sembuf.h
@@ -1,6 +1,8 @@
 #ifndef _SPARC_SEMBUF_H
 #define _SPARC_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The semid64_ds structure for sparc architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/x86/include/uapi/asm/sembuf.h b/arch/x86/include/uapi/asm/sembuf.h
index cc2d6a3..d88cc89 100644
--- a/arch/x86/include/uapi/asm/sembuf.h
+++ b/arch/x86/include/uapi/asm/sembuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_X86_SEMBUF_H
 #define _ASM_X86_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The semid64_ds structure for x86 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/xtensa/include/uapi/asm/sembuf.h b/arch/xtensa/include/uapi/asm/sembuf.h
index c158704..2494c41 100644
--- a/arch/xtensa/include/uapi/asm/sembuf.h
+++ b/arch/xtensa/include/uapi/asm/sembuf.h
@@ -21,6 +21,7 @@
 #ifndef _XTENSA_SEMBUF_H
 #define _XTENSA_SEMBUF_H
 
+#include <asm/ipcbuf.h>
 #include <asm/byteorder.h>
 
 struct semid64_ds {
-- 
ldv



From - Thu Nov 08 21:39:39 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: "Dmitry V. Levin" <ldv@altlinux.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: [PATCH 3/3] uapi: fix asm/shmbuf.h userspace compilation errors
Date: Thu, 2 Mar 2017 03:22:53 +0300
Lines: 228
Approved: news@gmane.org
Message-ID: <20170302002253.GC27132@altlinux.org>
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Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>,
        Hans-Christian Egtvedt <egtvedt@samfundet.no>,
        Tony Luck <tony.luck@intel.com>,
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        Martin Schwidefsky <schwidefsky@de.ibm.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/58120>

Include <asm/ipcbuf.h> to fix asm/shmbuf.h userspace compilation errors
like this:

/usr/include/asm-generic/shmbuf.h:26:20: error: field 'shm_perm' has incomplete type
  struct ipc64_perm shm_perm; /* operation perms */
/usr/include/asm-generic/shmbuf.h:28:2: error: unknown type name '__kernel_time_t'
  __kernel_time_t  shm_atime; /* last attach time */
/usr/include/asm-generic/shmbuf.h:32:2: error: unknown type name '__kernel_time_t'
  __kernel_time_t  shm_dtime; /* last detach time */
/usr/include/asm-generic/shmbuf.h:36:2: error: unknown type name '__kernel_time_t'
  __kernel_time_t  shm_ctime; /* last change time */
/usr/include/asm-generic/shmbuf.h:40:2: error: unknown type name '__kernel_pid_t'
  __kernel_pid_t  shm_cpid; /* pid of creator */
/usr/include/asm-generic/shmbuf.h:41:2: error: unknown type name '__kernel_pid_t'
  __kernel_pid_t  shm_lpid; /* pid of last operator */
/usr/include/asm-generic/shmbuf.h:42:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t shm_nattch; /* no. of current attaches */
/usr/include/asm-generic/shmbuf.h:43:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t __unused4;
/usr/include/asm-generic/shmbuf.h:44:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t __unused5;
/usr/include/asm-generic/shmbuf.h:48:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t shmmax;
/usr/include/asm-generic/shmbuf.h:49:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t shmmin;
/usr/include/asm-generic/shmbuf.h:50:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t shmmni;
/usr/include/asm-generic/shmbuf.h:51:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t shmseg;
/usr/include/asm-generic/shmbuf.h:52:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t shmall;
/usr/include/asm-generic/shmbuf.h:53:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t __unused1;
/usr/include/asm-generic/shmbuf.h:54:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t __unused2;
/usr/include/asm-generic/shmbuf.h:55:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t __unused3;
/usr/include/asm-generic/shmbuf.h:56:2: error: unknown type name '__kernel_ulong_t'
  __kernel_ulong_t __unused4;

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
---
 include/uapi/asm-generic/shmbuf.h      | 1 +
 arch/alpha/include/uapi/asm/shmbuf.h   | 2 ++
 arch/avr32/include/uapi/asm/shmbuf.h   | 2 ++
 arch/frv/include/uapi/asm/shmbuf.h     | 2 ++
 arch/ia64/include/uapi/asm/shmbuf.h    | 2 ++
 arch/m32r/include/uapi/asm/shmbuf.h    | 2 ++
 arch/mips/include/uapi/asm/shmbuf.h    | 2 ++
 arch/mn10300/include/uapi/asm/shmbuf.h | 2 ++
 arch/parisc/include/uapi/asm/shmbuf.h  | 1 +
 arch/powerpc/include/uapi/asm/shmbuf.h | 2 ++
 arch/s390/include/uapi/asm/shmbuf.h    | 2 ++
 arch/sparc/include/uapi/asm/shmbuf.h   | 2 ++
 arch/xtensa/include/uapi/asm/shmbuf.h  | 2 ++
 13 files changed, 24 insertions(+)

diff --git a/include/uapi/asm-generic/shmbuf.h b/include/uapi/asm-generic/shmbuf.h
index 7e9fb2f..2a6d508 100644
--- a/include/uapi/asm-generic/shmbuf.h
+++ b/include/uapi/asm-generic/shmbuf.h
@@ -1,6 +1,7 @@
 #ifndef __ASM_GENERIC_SHMBUF_H
 #define __ASM_GENERIC_SHMBUF_H
 
+#include <asm/ipcbuf.h>
 #include <asm/bitsperlong.h>
 
 /*
diff --git a/arch/alpha/include/uapi/asm/shmbuf.h b/arch/alpha/include/uapi/asm/shmbuf.h
index 37ee84f..6156099 100644
--- a/arch/alpha/include/uapi/asm/shmbuf.h
+++ b/arch/alpha/include/uapi/asm/shmbuf.h
@@ -1,6 +1,8 @@
 #ifndef _ALPHA_SHMBUF_H
 #define _ALPHA_SHMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /* 
  * The shmid64_ds structure for alpha architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/avr32/include/uapi/asm/shmbuf.h b/arch/avr32/include/uapi/asm/shmbuf.h
index b94cf8b..c8e5234 100644
--- a/arch/avr32/include/uapi/asm/shmbuf.h
+++ b/arch/avr32/include/uapi/asm/shmbuf.h
@@ -1,6 +1,8 @@
 #ifndef _UAPI__ASM_AVR32_SHMBUF_H
 #define _UAPI__ASM_AVR32_SHMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The shmid64_ds structure for i386 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/frv/include/uapi/asm/shmbuf.h b/arch/frv/include/uapi/asm/shmbuf.h
index 4c6e711..943746c 100644
--- a/arch/frv/include/uapi/asm/shmbuf.h
+++ b/arch/frv/include/uapi/asm/shmbuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_SHMBUF_H
 #define _ASM_SHMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The shmid64_ds structure for FR-V architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/ia64/include/uapi/asm/shmbuf.h b/arch/ia64/include/uapi/asm/shmbuf.h
index 585002a..ca81d77e 100644
--- a/arch/ia64/include/uapi/asm/shmbuf.h
+++ b/arch/ia64/include/uapi/asm/shmbuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_IA64_SHMBUF_H
 #define _ASM_IA64_SHMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The shmid64_ds structure for IA-64 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/m32r/include/uapi/asm/shmbuf.h b/arch/m32r/include/uapi/asm/shmbuf.h
index b0cdf0a..714de6e 100644
--- a/arch/m32r/include/uapi/asm/shmbuf.h
+++ b/arch/m32r/include/uapi/asm/shmbuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_M32R_SHMBUF_H
 #define _ASM_M32R_SHMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The shmid64_ds structure for M32R architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/mips/include/uapi/asm/shmbuf.h b/arch/mips/include/uapi/asm/shmbuf.h
index f994438..f47d193 100644
--- a/arch/mips/include/uapi/asm/shmbuf.h
+++ b/arch/mips/include/uapi/asm/shmbuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_SHMBUF_H
 #define _ASM_SHMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The shmid64_ds structure for the MIPS architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/mn10300/include/uapi/asm/shmbuf.h b/arch/mn10300/include/uapi/asm/shmbuf.h
index 8f300cc..71df684 100644
--- a/arch/mn10300/include/uapi/asm/shmbuf.h
+++ b/arch/mn10300/include/uapi/asm/shmbuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_SHMBUF_H
 #define _ASM_SHMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The shmid64_ds structure for MN10300 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/parisc/include/uapi/asm/shmbuf.h b/arch/parisc/include/uapi/asm/shmbuf.h
index 750e13e..d8105ef 100644
--- a/arch/parisc/include/uapi/asm/shmbuf.h
+++ b/arch/parisc/include/uapi/asm/shmbuf.h
@@ -1,6 +1,7 @@
 #ifndef _PARISC_SHMBUF_H
 #define _PARISC_SHMBUF_H
 
+#include <asm/ipcbuf.h>
 #include <asm/bitsperlong.h>
 
 /* 
diff --git a/arch/powerpc/include/uapi/asm/shmbuf.h b/arch/powerpc/include/uapi/asm/shmbuf.h
index 8efa396..7937289 100644
--- a/arch/powerpc/include/uapi/asm/shmbuf.h
+++ b/arch/powerpc/include/uapi/asm/shmbuf.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_POWERPC_SHMBUF_H
 #define _ASM_POWERPC_SHMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
diff --git a/arch/s390/include/uapi/asm/shmbuf.h b/arch/s390/include/uapi/asm/shmbuf.h
index eed2e28..9ce1d9f 100644
--- a/arch/s390/include/uapi/asm/shmbuf.h
+++ b/arch/s390/include/uapi/asm/shmbuf.h
@@ -1,6 +1,8 @@
 #ifndef _S390_SHMBUF_H
 #define _S390_SHMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /* 
  * The shmid64_ds structure for S/390 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/sparc/include/uapi/asm/shmbuf.h b/arch/sparc/include/uapi/asm/shmbuf.h
index 83a1605..f651952 100644
--- a/arch/sparc/include/uapi/asm/shmbuf.h
+++ b/arch/sparc/include/uapi/asm/shmbuf.h
@@ -1,6 +1,8 @@
 #ifndef _SPARC_SHMBUF_H
 #define _SPARC_SHMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /* 
  * The shmid64_ds structure for sparc architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/xtensa/include/uapi/asm/shmbuf.h b/arch/xtensa/include/uapi/asm/shmbuf.h
index ad4b012..ad90d05 100644
--- a/arch/xtensa/include/uapi/asm/shmbuf.h
+++ b/arch/xtensa/include/uapi/asm/shmbuf.h
@@ -19,6 +19,8 @@
 #ifndef _XTENSA_SHMBUF_H
 #define _XTENSA_SHMBUF_H
 
+#include <asm/ipcbuf.h>
+
 #if defined (__XTENSA_EL__)
 struct shmid64_ds {
 	struct ipc64_perm	shm_perm;	/* operation perms */
-- 
ldv



From - Thu Nov 08 21:39:39 2018
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Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCH 3/3] uapi: fix asm/shmbuf.h userspace compilation errors
Date: Thu, 2 Mar 2017 14:14:59 +0100
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To: "Dmitry V. Levin" <ldv@altlinux.org>
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Xref: news.gmane.org gmane.linux.ports.sparc:24663 gmane.linux.kernel.cross-arch:35317 gmane.linux.ports.alpha:4101 gmane.linux.ports.ia64:27668 gmane.linux.ports.mips.general:58162 gmane.linux.ports.parisc:27290 gmane.linux.ports.ppc64.devel:139150 gmane.linux.kernel:2421915
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/24663>

On Thu, Mar 2, 2017 at 1:22 AM, Dmitry V. Levin <ldv@altlinux.org> wrote:
> Include <asm/ipcbuf.h> to fix asm/shmbuf.h userspace compilation errors
> like this:
>
> /usr/include/asm-generic/shmbuf.h:26:20: error: field 'shm_perm' has incomplete type
>   struct ipc64_perm shm_perm; /* operation perms */
> /usr/include/asm-generic/shmbuf.h:28:2: error: unknown type name '__kernel_time_t'
>   __kernel_time_t  shm_atime; /* last attach time */
> /usr/include/asm-generic/shmbuf.h:32:2: error: unknown type name '__kernel_time_t'
>   __kernel_time_t  shm_dtime; /* last detach time */
> /usr/include/asm-generic/shmbuf.h:36:2: error: unknown type name '__kernel_time_t'
>   __kernel_time_t  shm_ctime; /* last change time */
> /usr/include/asm-generic/shmbuf.h:40:2: error: unknown type name '__kernel_pid_t'
>   __kernel_pid_t  shm_cpid; /* pid of creator */
> /usr/include/asm-generic/shmbuf.h:41:2: error: unknown type name '__kernel_pid_t'
>   __kernel_pid_t  shm_lpid; /* pid of last operator */
> /usr/include/asm-generic/shmbuf.h:42:2: error: unknown type name '__kernel_ulong_t'
>   __kernel_ulong_t shm_nattch; /* no. of current attaches */
> /usr/include/asm-generic/shmbuf.h:43:2: error: unknown type name '__kernel_ulong_t'
>   __kernel_ulong_t __unused4;
> /usr/include/asm-generic/shmbuf.h:44:2: error: unknown type name '__kernel_ulong_t'
>   __kernel_ulong_t __unused5;
> /usr/include/asm-generic/shmbuf.h:48:2: error: unknown type name '__kernel_ulong_t'
>   __kernel_ulong_t shmmax;
> /usr/include/asm-generic/shmbuf.h:49:2: error: unknown type name '__kernel_ulong_t'
>   __kernel_ulong_t shmmin;
> /usr/include/asm-generic/shmbuf.h:50:2: error: unknown type name '__kernel_ulong_t'
>   __kernel_ulong_t shmmni;
> /usr/include/asm-generic/shmbuf.h:51:2: error: unknown type name '__kernel_ulong_t'
>   __kernel_ulong_t shmseg;
> /usr/include/asm-generic/shmbuf.h:52:2: error: unknown type name '__kernel_ulong_t'
>   __kernel_ulong_t shmall;
> /usr/include/asm-generic/shmbuf.h:53:2: error: unknown type name '__kernel_ulong_t'
>   __kernel_ulong_t __unused1;
> /usr/include/asm-generic/shmbuf.h:54:2: error: unknown type name '__kernel_ulong_t'
>   __kernel_ulong_t __unused2;
> /usr/include/asm-generic/shmbuf.h:55:2: error: unknown type name '__kernel_ulong_t'
>   __kernel_ulong_t __unused3;
> /usr/include/asm-generic/shmbuf.h:56:2: error: unknown type name '__kernel_ulong_t'
>   __kernel_ulong_t __unused4;
>
> Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
> ---

Acked-by: Arnd Bergmann <arnd@arndb.de>
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From - Thu Nov 08 21:39:39 2018
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From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: Re: [PATCH] uapi: fix asm/signal.h userspace compilation errors
Date: Thu, 2 Mar 2017 10:22:18 -0500
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To: Arnd Bergmann <arnd@arndb.de>
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On Wed, Mar 1, 2017 at 11:20 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Sun, Feb 26, 2017 at 2:01 AM, Dmitry V. Levin <ldv@altlinux.org> wrote:
>> Include <stddef.h> (guarded by #ifndef __KERNEL__) to fix asm/signal.h
>> userspace compilation errors like this:
>>
>> /usr/include/asm/signal.h:126:2: error: unknown type name 'size_t'
>>   size_t ss_size;
>>
>> As no uapi header provides a definition of size_t, inclusion
>> of <stddef.h> seems to be the most conservative fix available.
>>
>> On the kernel side size_t is typedef'ed to __kernel_size_t, so
>> an alternative fix would be to change the type of sigaltstack.ss_size
>> from size_t to __kernel_size_t for all architectures except those where
>> sizeof(size_t) < sizeof(__kernel_size_t), namely, x32 and mips n32.
>>
>> On x32 and mips n32, however, #include <stddef.h> seems to be the most
>> straightforward way to obtain the definition for sigaltstack.ss_size's
>> type.
>>
>> Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
>
> I'm not sure if this is the best fix. We generally should not include one
> standard header from another standard header. Would it be possible
> to use __kernel_size_t instead of size_t?

In glibc we handle this with special use of __need_size_t with GCC's
provided stddef.h.

For example glibc's signal.h does this:

# define __need_size_t
# include <stddef.h>

And...

/* Any one of these symbols __need_* means that GNU libc
   wants us just to define one data type.  So don't define
   the symbols that indicate this file's entire job has been done.  */
#if (!defined(__need_wchar_t) && !defined(__need_size_t)        \
     && !defined(__need_ptrdiff_t) && !defined(__need_NULL)     \
     && !defined(__need_wint_t))

The idea being that the type you want is really defined by stddef.h,
but you just one the one type.

Changing the fundamental type causes the issues you see in patch v2
where sizeof(size_t) < sizeof(__kernel_size_t).

It will only lead to problem substituting the wrong type.

Cheers,
Carlos.



From - Thu Nov 08 21:39:39 2018
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Subject: Re: [PATCH] uapi: fix asm/signal.h userspace compilation errors
Date: Thu, 2 Mar 2017 18:48:45 +0300
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Cc: Arnd Bergmann <arnd@arndb.de>,
        Russell King <linux@armlinux.org.uk>,
        Haavard Skinnemoen <hskinnemoen@gmail.com>,
        Hans-Christian Egtvedt <egtvedt@samfundet.no>,
        Mikael Starvik <starvik@axis.com>,
        Jesper Nilsson <jesper.nilsson@axis.com>,
        Yoshinori Sato <ysato@users.sourceforge.jp>,
        Tony Luck <tony.luck@intel.com>,
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        Michael Ellerman <mpe@ellerman.id.au>,
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        Heiko Carstens <heiko.carstens@de.ibm.
To: Carlos O'Donell <carlos@systemhalted.org>
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On Thu, Mar 02, 2017 at 10:22:18AM -0500, Carlos O'Donell wrote:
> On Wed, Mar 1, 2017 at 11:20 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> > On Sun, Feb 26, 2017 at 2:01 AM, Dmitry V. Levin <ldv@altlinux.org> wro=
te:
> >> Include <stddef.h> (guarded by #ifndef __KERNEL__) to fix asm/signal.h
> >> userspace compilation errors like this:
> >>
> >> /usr/include/asm/signal.h:126:2: error: unknown type name 'size_t'
> >>   size_t ss_size;
> >>
> >> As no uapi header provides a definition of size_t, inclusion
> >> of <stddef.h> seems to be the most conservative fix available.
[...]
> > I'm not sure if this is the best fix. We generally should not include o=
ne
> > standard header from another standard header. Would it be possible
> > to use __kernel_size_t instead of size_t?
>=20
> In glibc we handle this with special use of __need_size_t with GCC's
> provided stddef.h.
>=20
> For example glibc's signal.h does this:
>=20
> # define __need_size_t
> # include <stddef.h>

Just to make it clear, do you suggest this approach for asm/signal.h as wel=
l?

[...]
> Changing the fundamental type causes the issues you see in patch v2
> where sizeof(size_t) < sizeof(__kernel_size_t).
>=20
> It will only lead to problem substituting the wrong type.

I don't see any appetite for creating more ABIs like x32 with
sizeof(size_t) < sizeof(__kernel_size_t), so v2 approach
is not going to be any different from v1 in maintenance.


--=20
ldv

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From - Thu Nov 08 21:39:39 2018
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From: Jiri Slaby <jslaby@suse.cz>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 1/3] futex: remove duplicated code
Date: Fri,  3 Mar 2017 13:27:10 +0100
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Cc: linux-kernel@vger.kernel.org, Jiri Slaby <jslaby@suse.cz>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Richard Kuo <rkuo@codeaurora.org>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
        Jonas Bonn <jonas@southpole.se>,
        Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
        Stafford Horne <shorne@gmail.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
To: akpm@linux-foundation.org
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There is code duplicated over all architecture's headers for
futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
and comparison of the result.

Remove this duplication and leave up to the arches only the needed
assembly which is now in arch_futex_atomic_op_inuser.

Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
remove pointless access_ok() checks") as access_ok there returns true.
We introduce it back to the helper for the sake of simplicity (it gets
optimized away anyway).

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stafford Horne <shorne@gmail.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: <x86@kernel.org>
Cc: <linux-alpha@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Cc: <linux-snps-arc@lists.infradead.org>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: <linux-hexagon@vger.kernel.org>
Cc: <linux-ia64@vger.kernel.org>
Cc: <linux-mips@linux-mips.org>
Cc: <openrisc@lists.librecores.org>
Cc: <linux-parisc@vger.kernel.org>
Cc: <linuxppc-dev@lists.ozlabs.org>
Cc: <linux-s390@vger.kernel.org>
Cc: <linux-sh@vger.kernel.org>
Cc: <sparclinux@vger.kernel.org>
Cc: <linux-xtensa@linux-xtensa.org>
Cc: <linux-arch@vger.kernel.org>
---
 arch/alpha/include/asm/futex.h      | 26 ++++---------------
 arch/arc/include/asm/futex.h        | 40 ++++-------------------------
 arch/arm/include/asm/futex.h        | 26 +++----------------
 arch/arm64/include/asm/futex.h      | 26 +++----------------
 arch/frv/include/asm/futex.h        |  3 ++-
 arch/frv/kernel/futex.c             | 27 +++-----------------
 arch/hexagon/include/asm/futex.h    | 38 +++-------------------------
 arch/ia64/include/asm/futex.h       | 25 +++----------------
 arch/microblaze/include/asm/futex.h | 38 +++-------------------------
 arch/mips/include/asm/futex.h       | 25 +++----------------
 arch/openrisc/include/asm/futex.h   | 39 +++--------------------------
 arch/parisc/include/asm/futex.h     | 26 +++----------------
 arch/powerpc/include/asm/futex.h    | 26 ++++---------------
 arch/s390/include/asm/futex.h       | 23 ++++-------------
 arch/sh/include/asm/futex.h         | 26 +++----------------
 arch/sparc/include/asm/futex_64.h   | 26 ++++---------------
 arch/tile/include/asm/futex.h       | 40 ++++-------------------------
 arch/x86/include/asm/futex.h        | 40 ++++-------------------------
 arch/xtensa/include/asm/futex.h     | 27 ++++----------------
 include/asm-generic/futex.h         | 50 +++++++------------------------------
 kernel/futex.c                      | 36 ++++++++++++++++++++++++++
 21 files changed, 127 insertions(+), 506 deletions(-)

diff --git a/arch/alpha/include/asm/futex.h b/arch/alpha/include/asm/futex.h
index f939794363ac..56474690e685 100644
--- a/arch/alpha/include/asm/futex.h
+++ b/arch/alpha/include/asm/futex.h
@@ -29,18 +29,10 @@
 	:	"r" (uaddr), "r"(oparg)				\
 	:	"memory")
 
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -66,17 +58,9 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/arc/include/asm/futex.h b/arch/arc/include/asm/futex.h
index 11e1b1f3acda..eb887dd13e74 100644
--- a/arch/arc/include/asm/futex.h
+++ b/arch/arc/include/asm/futex.h
@@ -73,20 +73,11 @@
 
 #endif
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
-
 #ifndef CONFIG_ARC_HAS_LLSC
 	preempt_disable();	/* to guarantee atomic r-m-w of futex op */
 #endif
@@ -118,30 +109,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	preempt_enable();
 #endif
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
index 6795368ad023..cc414382dab4 100644
--- a/arch/arm/include/asm/futex.h
+++ b/arch/arm/include/asm/futex.h
@@ -128,20 +128,10 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 #endif /* !SMP */
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 #ifndef CONFIG_SMP
 	preempt_disable();
 #endif
@@ -172,17 +162,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 	preempt_enable();
 #endif
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h
index 85c4a8981d47..5bb2fd4674e7 100644
--- a/arch/arm64/include/asm/futex.h
+++ b/arch/arm64/include/asm/futex.h
@@ -48,20 +48,10 @@ do {									\
 } while (0)
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -91,17 +81,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/frv/include/asm/futex.h b/arch/frv/include/asm/futex.h
index 2e1da71e27a4..ab346f5f8820 100644
--- a/arch/frv/include/asm/futex.h
+++ b/arch/frv/include/asm/futex.h
@@ -7,7 +7,8 @@
 #include <asm/errno.h>
 #include <linux/uaccess.h>
 
-extern int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr);
+extern int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr);
 
 static inline int
 futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
diff --git a/arch/frv/kernel/futex.c b/arch/frv/kernel/futex.c
index d155ca9e5098..37f7b2bf7f73 100644
--- a/arch/frv/kernel/futex.c
+++ b/arch/frv/kernel/futex.c
@@ -186,20 +186,10 @@ static inline int atomic_futex_op_xchg_xor(int oparg, u32 __user *uaddr, int *_o
 /*
  * do the futex operations
  */
-int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -225,18 +215,9 @@ int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS; break;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
 
 	return ret;
 
-} /* end futex_atomic_op_inuser() */
+} /* end arch_futex_atomic_op_inuser() */
diff --git a/arch/hexagon/include/asm/futex.h b/arch/hexagon/include/asm/futex.h
index 7e597f8434da..c607b77c8215 100644
--- a/arch/hexagon/include/asm/futex.h
+++ b/arch/hexagon/include/asm/futex.h
@@ -31,18 +31,9 @@
 
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -72,30 +63,9 @@ futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h
index 76acbcd5c060..6d67dc1eaf2b 100644
--- a/arch/ia64/include/asm/futex.h
+++ b/arch/ia64/include/asm/futex.h
@@ -45,18 +45,9 @@ do {									\
 } while (0)
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -84,17 +75,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/microblaze/include/asm/futex.h b/arch/microblaze/include/asm/futex.h
index 01848f056f43..a9dad9e5e132 100644
--- a/arch/microblaze/include/asm/futex.h
+++ b/arch/microblaze/include/asm/futex.h
@@ -29,18 +29,9 @@
 })
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -66,30 +57,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/mips/include/asm/futex.h b/arch/mips/include/asm/futex.h
index 1de190bdfb9c..a9e61ea54ca9 100644
--- a/arch/mips/include/asm/futex.h
+++ b/arch/mips/include/asm/futex.h
@@ -83,18 +83,9 @@
 }
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -125,17 +116,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/openrisc/include/asm/futex.h b/arch/openrisc/include/asm/futex.h
index 778087341977..8fed278a24b8 100644
--- a/arch/openrisc/include/asm/futex.h
+++ b/arch/openrisc/include/asm/futex.h
@@ -30,20 +30,10 @@
 })
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -68,30 +58,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index ac8bd586ace8..06a1a883c72f 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -32,22 +32,12 @@ _futex_spin_unlock_irqrestore(u32 __user *uaddr, unsigned long int *flags)
 }
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
 	unsigned long int flags;
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval, ret;
 	u32 tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(*uaddr)))
-		return -EFAULT;
-
 	_futex_spin_lock_irqsave(uaddr, &flags);
 	pagefault_disable();
 
@@ -85,17 +75,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 	pagefault_enable();
 	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
-	if (ret == 0) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/powerpc/include/asm/futex.h b/arch/powerpc/include/asm/futex.h
index eaada6c92344..719ed9b61ea7 100644
--- a/arch/powerpc/include/asm/futex.h
+++ b/arch/powerpc/include/asm/futex.h
@@ -29,18 +29,10 @@
 	: "b" (uaddr), "i" (-EFAULT), "r" (oparg) \
 	: "cr0", "memory")
 
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -66,17 +58,9 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h
index a4811aa0304d..8f8eec9e1198 100644
--- a/arch/s390/include/asm/futex.h
+++ b/arch/s390/include/asm/futex.h
@@ -21,17 +21,12 @@
 		: "0" (-EFAULT), "d" (oparg), "a" (uaddr),		\
 		  "m" (*uaddr) : "cc");
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, newval, ret;
 
 	load_kernel_asce();
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
 
 	pagefault_disable();
 	switch (op) {
@@ -60,17 +55,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	}
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/sh/include/asm/futex.h b/arch/sh/include/asm/futex.h
index d0078747d308..8f8cf941a8cd 100644
--- a/arch/sh/include/asm/futex.h
+++ b/arch/sh/include/asm/futex.h
@@ -27,21 +27,12 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	return atomic_futex_op_cmpxchg_inatomic(uval, uaddr, oldval, newval);
 }
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	u32 oparg = (encoded_op << 8) >> 20;
-	u32 cmparg = (encoded_op << 20) >> 20;
 	u32 oldval, newval, prev;
 	int ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	do {
@@ -80,17 +71,8 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = ((int)oldval < (int)cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = ((int)oldval >= (int)cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = ((int)oldval <= (int)cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = ((int)oldval > (int)cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
 
 	return ret;
 }
diff --git a/arch/sparc/include/asm/futex_64.h b/arch/sparc/include/asm/futex_64.h
index 4e899b0dabf7..1cfd89d92208 100644
--- a/arch/sparc/include/asm/futex_64.h
+++ b/arch/sparc/include/asm/futex_64.h
@@ -29,22 +29,14 @@
 	: "r" (uaddr), "r" (oparg), "i" (-EFAULT)	\
 	: "memory")
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tem;
 
-	if (unlikely(!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))))
-		return -EFAULT;
 	if (unlikely((((unsigned long) uaddr) & 0x3UL)))
 		return -EINVAL;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -69,17 +61,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/tile/include/asm/futex.h b/arch/tile/include/asm/futex.h
index e64a1b75fc38..83c1e639b411 100644
--- a/arch/tile/include/asm/futex.h
+++ b/arch/tile/include/asm/futex.h
@@ -106,12 +106,9 @@
 	lock = __atomic_hashed_lock((int __force *)uaddr)
 #endif
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int uninitialized_var(val), ret;
 
 	__futex_prolog();
@@ -119,12 +116,6 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	/* The 32-bit futex code makes this assumption, so validate it here. */
 	BUILD_BUG_ON(sizeof(atomic_t) != sizeof(int));
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 	switch (op) {
 	case FUTEX_OP_SET:
@@ -148,30 +139,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	}
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (val == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (val != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (val < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (val >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (val <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (val > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = val;
+
 	return ret;
 }
 
diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
index b4c1f5453436..f4dc9b63bdda 100644
--- a/arch/x86/include/asm/futex.h
+++ b/arch/x86/include/asm/futex.h
@@ -41,20 +41,11 @@
 		       "+m" (*uaddr), "=&r" (tem)		\
 		     : "r" (oparg), "i" (-EFAULT), "1" (0))
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tem;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -80,30 +71,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/xtensa/include/asm/futex.h b/arch/xtensa/include/asm/futex.h
index b39531babec0..eaaf1ebcc7a4 100644
--- a/arch/xtensa/include/asm/futex.h
+++ b/arch/xtensa/include/asm/futex.h
@@ -44,18 +44,10 @@
 	: "r" (uaddr), "I" (-EFAULT), "r" (oparg)	\
 	: "memory")
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 #if !XCHAL_HAVE_S32C1I
 	return -ENOSYS;
@@ -89,19 +81,10 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (ret)
-		return ret;
+	if (!ret)
+		*oval = oldval;
 
-	switch (cmp) {
-	case FUTEX_OP_CMP_EQ: return (oldval == cmparg);
-	case FUTEX_OP_CMP_NE: return (oldval != cmparg);
-	case FUTEX_OP_CMP_LT: return (oldval < cmparg);
-	case FUTEX_OP_CMP_GE: return (oldval >= cmparg);
-	case FUTEX_OP_CMP_LE: return (oldval <= cmparg);
-	case FUTEX_OP_CMP_GT: return (oldval > cmparg);
-	}
-
-	return -ENOSYS;
+	return ret;
 }
 
 static inline int
diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h
index bf2d34c9d804..f0d8b1c51343 100644
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -13,7 +13,7 @@
  */
 
 /**
- * futex_atomic_op_inuser() - Atomic arithmetic operation with constant
+ * arch_futex_atomic_op_inuser() - Atomic arithmetic operation with constant
  *			  argument and comparison of the previous
  *			  futex value with another constant.
  *
@@ -25,18 +25,11 @@
  * <0 - On error
  */
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval, ret;
 	u32 tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
 	preempt_disable();
 	pagefault_disable();
 
@@ -74,17 +67,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	pagefault_enable();
 	preempt_enable();
 
-	if (ret == 0) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (ret == 0)
+		*oval = oldval;
+
 	return ret;
 }
 
@@ -126,18 +111,9 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 
 #else
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -153,17 +129,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/kernel/futex.c b/kernel/futex.c
index b687cb22301c..c5ff9850952f 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1457,6 +1457,42 @@ futex_wake(u32 __user *uaddr, unsigned int flags, int nr_wake, u32 bitset)
 	return ret;
 }
 
+static int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+{
+	int op = (encoded_op >> 28) & 7;
+	int cmp = (encoded_op >> 24) & 15;
+	int oparg = (encoded_op << 8) >> 20;
+	int cmparg = (encoded_op << 20) >> 20;
+	int oldval, ret;
+
+	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
+		oparg = 1 << oparg;
+
+	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+		return -EFAULT;
+
+	ret = arch_futex_atomic_op_inuser(op, oparg, &oldval, uaddr);
+	if (ret)
+		return ret;
+
+	switch (cmp) {
+	case FUTEX_OP_CMP_EQ:
+		return oldval == cmparg;
+	case FUTEX_OP_CMP_NE:
+		return oldval != cmparg;
+	case FUTEX_OP_CMP_LT:
+		return oldval < cmparg;
+	case FUTEX_OP_CMP_GE:
+		return oldval >= cmparg;
+	case FUTEX_OP_CMP_LE:
+		return oldval <= cmparg;
+	case FUTEX_OP_CMP_GT:
+		return oldval > cmparg;
+	default:
+		return -ENOSYS;
+	}
+}
+
 /*
  * Wake up all waiters hashed on the physical page that is mapped
  * to this virtual address:
-- 
2.12.0




From - Thu Nov 08 21:39:40 2018
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From: Heiko Carstens <heiko.carstens@de.ibm.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 1/3] futex: remove duplicated code
Date: Fri, 3 Mar 2017 15:08:37 +0100
Lines: 26
Approved: news@gmane.org
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Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Richard Kuo <rkuo@codeaurora.org>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
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        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
To: Jiri Slaby <jslaby@suse.cz>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.mips.general/58181>

On Fri, Mar 03, 2017 at 01:27:10PM +0100, Jiri Slaby wrote:
> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
> 
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.
> 
> Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
> remove pointless access_ok() checks") as access_ok there returns true.
> We introduce it back to the helper for the sake of simplicity (it gets
> optimized away anyway).
> 
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> ---
>  arch/s390/include/asm/futex.h       | 23 ++++-------------
>  include/asm-generic/futex.h         | 50 +++++++------------------------------
>  kernel/futex.c                      | 36 ++++++++++++++++++++++++++

Looks good to me and still boots on s390. Therefore for the s390 bits:
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>

Thanks!




From - Thu Nov 08 21:39:40 2018
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From: Chris Metcalf <cmetcalf@mellanox.com>
Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 1/3] futex: remove duplicated code
Date: Fri, 3 Mar 2017 09:48:52 -0500
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Cc: <linux-kernel@vger.kernel.org>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
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To: Jiri Slaby <jslaby@suse.cz>, <akpm@linux-foundation.org>
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On 3/3/2017 7:27 AM, Jiri Slaby wrote:
> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
>
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.
>
> Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
> remove pointless access_ok() checks") as access_ok there returns true.
> We introduce it back to the helper for the sake of simplicity (it gets
> optimized away anyway).
>
> Signed-off-by: Jiri Slaby<jslaby@suse.cz>

Acked-by: Chris Metcalf <cmetcalf@mellanox.com> [for tile]

-- 
Chris Metcalf, Mellanox Technologies
http://www.mellanox.com




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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc architecture fixes for 4.11
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Hi Linus,

Please pull the changes for the parisc architecture for v4.11 from
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.11-1

Nothing really important in this patchset: Fix resource leaks in error paths,
coding style cleanups and code removal.

Thanks,
Helge

----------------------------------------------------------------
Arvind Yadav (3):
      parisc: eisa: Remove coding style errors
      parisc: eisa: Fix resource leaks in error paths
      parisc: ccio-dma: Handle return NULL error from ioremap_nocache

Dan Carpenter (1):
      parisc: fix a printk

Helge Deller (1):
      parisc: Define access_ok() as macro

John David Anglin (1):
      parisc: Remove flush_user_dcache_range and flush_user_icache_range

 arch/parisc/include/asm/cacheflush.h |   2 -
 arch/parisc/include/asm/uaccess.h    |   6 +-
 arch/parisc/kernel/cache.c           |  18 ------
 arch/parisc/kernel/signal.c          |  13 ++--
 arch/parisc/mm/fault.c               |   4 +-
 drivers/parisc/ccio-dma.c            |   6 +-
 drivers/parisc/eisa.c                | 122 +++++++++++++++++++----------------
 7 files changed, 83 insertions(+), 88 deletions(-)
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From - Thu Nov 08 21:39:40 2018
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Subject: Re: [PATCH] uapi: fix asm/signal.h userspace compilation errors
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On Thu, Mar 2, 2017 at 10:48 AM, Dmitry V. Levin <ldv@altlinux.org> wrote:
> On Thu, Mar 02, 2017 at 10:22:18AM -0500, Carlos O'Donell wrote:
>> On Wed, Mar 1, 2017 at 11:20 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>> > On Sun, Feb 26, 2017 at 2:01 AM, Dmitry V. Levin <ldv@altlinux.org> wrote:
>> >> Include <stddef.h> (guarded by #ifndef __KERNEL__) to fix asm/signal.h
>> >> userspace compilation errors like this:
>> >>
>> >> /usr/include/asm/signal.h:126:2: error: unknown type name 'size_t'
>> >>   size_t ss_size;
>> >>
>> >> As no uapi header provides a definition of size_t, inclusion
>> >> of <stddef.h> seems to be the most conservative fix available.
> [...]
>> > I'm not sure if this is the best fix. We generally should not include one
>> > standard header from another standard header. Would it be possible
>> > to use __kernel_size_t instead of size_t?
>>
>> In glibc we handle this with special use of __need_size_t with GCC's
>> provided stddef.h.
>>
>> For example glibc's signal.h does this:
>>
>> # define __need_size_t
>> # include <stddef.h>
>
> Just to make it clear, do you suggest this approach for asm/signal.h as well?

The kernel is duplicating userspace headers in the UAPI implementation
and running into exactly the same problems we have already solved in
userspace. We currently have no better solution than the "__need_*"
interface for avoiding the duplication of the type definitions and the
problems that come with that.

I am taking this up with senior glibc developers on libc-alpha to see
if we have a better suggestion. If you give me 72 hours I'll either
have a better suggestion or the acknowledgement that my suggestion is
the best practical solution we have.

Note that in a GNU userspace stddef.h here comes from gcc, which
completes the implementation of the C development environment that
provides the types you need. The use of "__need_size_t" is a collusion
between the components of the implementation and use by the Linux
kernel would mean expecting something specific to a GNU
implementation.

I might suggest you use include/uapi/linux/libc-compat.h in an attempt
to abstract away the GNU-specific magic for getting just size_t from
stddef.h. That way you have documented the places that other runtime
authors need to fill out for things to work.

Cheers,
Carlos.



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Subject: Re: [PATCH 1/3] futex: remove duplicated code
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Cc: linux-kernel@vger.kernel.org, Jiri Slaby <jslaby@suse.cz>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
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        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
To: Jiri Slaby <jslaby@suse.cz>, akpm@linux-foundation.org
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Jiri Slaby <jslaby@suse.cz> writes:

> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
>
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.

Looks OK and boots on powerpc. But I don't think anything's actually
calling those futex ops. Is there a test suite I should run?

Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)

cheers



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Subject: Re: [PATCH 1/3] futex: remove duplicated code
Date: Sat, 4 Mar 2017 13:05:50 +0000
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On Fri, Mar 03, 2017 at 01:27:10PM +0100, Jiri Slaby wrote:
> diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
> index 6795368ad023..cc414382dab4 100644
> --- a/arch/arm/include/asm/futex.h
> +++ b/arch/arm/include/asm/futex.h
> @@ -128,20 +128,10 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
>  #endif /* !SMP */
>  
>  static inline int
> -futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
> +arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
>  {
> -	int op = (encoded_op >> 28) & 7;
> -	int cmp = (encoded_op >> 24) & 15;
> -	int oparg = (encoded_op << 8) >> 20;
> -	int cmparg = (encoded_op << 20) >> 20;
>  	int oldval = 0, ret, tmp;
>  
> -	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
> -		oparg = 1 << oparg;
> -
> -	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
> -		return -EFAULT;
> -
>  #ifndef CONFIG_SMP
>  	preempt_disable();
>  #endif
> @@ -172,17 +162,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
>  	preempt_enable();
>  #endif
>  
> -	if (!ret) {
> -		switch (cmp) {
> -		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
> -		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
> -		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
> -		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
> -		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
> -		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
> -		default: ret = -ENOSYS;
> -		}
> -	}
> +	if (!ret)
> +		*oval = oldval;
> +
>  	return ret;
>  }
>  
> diff --git a/kernel/futex.c b/kernel/futex.c
> index b687cb22301c..c5ff9850952f 100644
> --- a/kernel/futex.c
> +++ b/kernel/futex.c
> @@ -1457,6 +1457,42 @@ futex_wake(u32 __user *uaddr, unsigned int flags, int nr_wake, u32 bitset)
>  	return ret;
>  }
>  
> +static int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
> +{
> +	int op = (encoded_op >> 28) & 7;
> +	int cmp = (encoded_op >> 24) & 15;
> +	int oparg = (encoded_op << 8) >> 20;
> +	int cmparg = (encoded_op << 20) >> 20;

Hmm.  oparg and cmparg look like they're doing these shifts to get sign
extension of the 12-bit values by assuming that "int" is 32-bit -
probably worth a comment, or for safety, they should be "s32" so it's
not dependent on the bit-width of "int".

> +	int oldval, ret;
> +
> +	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
> +		oparg = 1 << oparg;

I guess it doesn't matter that oparg can be >= the bit size of oparg
(so large values produce an undefined result) as it's no different
from userspace trying to do the same with large shifts.

> +
> +	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
> +		return -EFAULT;
> +
> +	ret = arch_futex_atomic_op_inuser(op, oparg, &oldval, uaddr);
> +	if (ret)
> +		return ret;
> +
> +	switch (cmp) {
> +	case FUTEX_OP_CMP_EQ:
> +		return oldval == cmparg;
> +	case FUTEX_OP_CMP_NE:
> +		return oldval != cmparg;
> +	case FUTEX_OP_CMP_LT:
> +		return oldval < cmparg;
> +	case FUTEX_OP_CMP_GE:
> +		return oldval >= cmparg;
> +	case FUTEX_OP_CMP_LE:
> +		return oldval <= cmparg;
> +	case FUTEX_OP_CMP_GT:
> +		return oldval > cmparg;
> +	default:
> +		return -ENOSYS;
> +	}
> +}
> +
>  /*
>   * Wake up all waiters hashed on the physical page that is mapped
>   * to this virtual address:

As it's no worse than our existing code, for the above,

Acked-by: Russell King <rmk+kernel@armlinux.org.uk>

Thanks.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.



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Subject: Re: [PATCH 1/3] futex: remove duplicated code
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To: Russell King - ARM Linux <linux@armlinux.org.uk>,
        Jiri Slaby <jslaby@suse.cz>
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On 03/04/17 05:05, Russell King - ARM Linux wrote:
>>  
>> +static int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
>> +{
>> +	int op = (encoded_op >> 28) & 7;
>> +	int cmp = (encoded_op >> 24) & 15;
>> +	int oparg = (encoded_op << 8) >> 20;
>> +	int cmparg = (encoded_op << 20) >> 20;
> 
> Hmm.  oparg and cmparg look like they're doing these shifts to get sign
> extension of the 12-bit values by assuming that "int" is 32-bit -
> probably worth a comment, or for safety, they should be "s32" so it's
> not dependent on the bit-width of "int".
> 

For readability, perhaps we should make sign- and zero-extension an
explicit facility?

/*
 * Truncate an integer x to n bits, using sign- or
 * zero-extension, respectively.
 */
static inline __const_func__ s32 sex32(s32 x, int n)
{
  return (x << (32-n)) >> (32-n);
}

static inline __const_func__ s64 sex64(s64 x, int n)
{
  return (x << (64-n)) >> (64-n);
}

#define sex(x,y)						\
	((__typeof__(x))					\
	 (((__builtin_constant_p(y) && ((y) <= 32)) ||		\
	   (sizeof(x) <= sizeof(s32)))				\
	  ? sex32((x),(y)) : sex64((x),(y))))

static inline __const_func__ u32 zex32(u32 x, int n)
{
  return (x << (32-n)) >> (32-n);
}

static inline __const_func__ u64 zex64(u64 x, int n)
{
  return (x << (64-n)) >> (64-n);
}

#define zex(x,y)						\
	((__typeof__(x))					\
	 (((__builtin_constant_p(y) && ((y) <= 32)) ||		\
	   (sizeof(x) <= sizeof(u32)))				\
	  ? zex32((x),(y)) : zex64((x),(y))))




From - Thu Nov 08 21:39:40 2018
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From: Stafford Horne <shorne@gmail.com>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 1/3] futex: remove duplicated code
Date: Sun, 5 Mar 2017 06:38:05 +0900
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Cc: Russell King - ARM Linux <linux@armlinux.org.uk>,
        Jiri Slaby <jslaby@suse.cz>, akpm@linux-foundation.org,
        linux-kernel@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
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        "James E.J. Bottomley" <jejb@parisc-linux.org>,
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        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
To: "H. Peter Anvin" <hpa@zytor.com>
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On Sat, Mar 04, 2017 at 11:15:17AM -0800, H. Peter Anvin wrote:
> On 03/04/17 05:05, Russell King - ARM Linux wrote:
> >>  
> >> +static int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
> >> +{
> >> +	int op = (encoded_op >> 28) & 7;
> >> +	int cmp = (encoded_op >> 24) & 15;
> >> +	int oparg = (encoded_op << 8) >> 20;
> >> +	int cmparg = (encoded_op << 20) >> 20;
> > 
> > Hmm.  oparg and cmparg look like they're doing these shifts to get sign
> > extension of the 12-bit values by assuming that "int" is 32-bit -
> > probably worth a comment, or for safety, they should be "s32" so it's
> > not dependent on the bit-width of "int".
> > 
> 
> For readability, perhaps we should make sign- and zero-extension an
> explicit facility?

There is some of this in already here, 32 and 64 bit versions:

  include/linux/bitops.h

Do we really need zero extension? It seems the same.

Example implementation from bitops.h

static inline __s32 sign_extend32(__u32 value, int index)
{
        __u8 shift = 31 - index;
        return (__s32)(value << shift) >> shift;
}

> /*
>  * Truncate an integer x to n bits, using sign- or
>  * zero-extension, respectively.
>  */
> static inline __const_func__ s32 sex32(s32 x, int n)
> {
>   return (x << (32-n)) >> (32-n);
> }
> 
> static inline __const_func__ s64 sex64(s64 x, int n)
> {
>   return (x << (64-n)) >> (64-n);
> }
> 
> #define sex(x,y)						\
> 	((__typeof__(x))					\
> 	 (((__builtin_constant_p(y) && ((y) <= 32)) ||		\
> 	   (sizeof(x) <= sizeof(s32)))				\
> 	  ? sex32((x),(y)) : sex64((x),(y))))
> 
> static inline __const_func__ u32 zex32(u32 x, int n)
> {
>   return (x << (32-n)) >> (32-n);
> }
> 
> static inline __const_func__ u64 zex64(u64 x, int n)
> {
>   return (x << (64-n)) >> (64-n);
> }
> 
> #define zex(x,y)						\
> 	((__typeof__(x))					\
> 	 (((__builtin_constant_p(y) && ((y) <= 32)) ||		\
> 	   (sizeof(x) <= sizeof(u32)))				\
> 	  ? zex32((x),(y)) : zex64((x),(y))))
> 

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From: "H. Peter Anvin" <hpa@zytor.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH 1/3] futex: remove duplicated code
Date: Sat, 04 Mar 2017 15:03:50 -0800
Lines: 86
Approved: news@gmane.org
Message-ID: <201703042304.v24N4Afu010968__14754.4373562143$1488669004$gmane$org@mail.zytor.com>
References: <20170303122712.13353-1-jslaby@suse.cz> <20170304130550.GT21222@n2100.armlinux.org.uk> <3994975e-89a5-d2b5-60be-a8633ddc3733@zytor.com> <20170304213805.GA2449@lianli.shorne-pla.net>
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Cc: Russell King - ARM Linux <linux@armlinux.org.uk>,
        Jiri Slaby <jslaby@suse.cz>, akpm@linux-foundation.org,
        linux-kernel@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Richard Kuo <rkuo@codeaurora.org>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
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        Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
To: Stafford Horne <shorne@gmail.com>
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<davem@davemloft.net>,Chris Metcalf <cmetcalf@mellanox.com>,Thomas Gleixner <tglx@linutronix.de>,Ingo Molnar <mingo@redhat.com>,Chris Zankel <chris@zankel.net>,Max Filippov <jcmvbkbc@gmail.com>,Arnd Bergmann <arnd@arndb.de>,x86@kernel.org,linux-alpha@vger.kernel.org,linux-snps-arc@lists.infradead.org,linux-arm-kernel@lists.infradead.org,linux-hexagon@vger.kernel.org,linux-ia64@vger.kernel.org,linux-mips@linux-mips.org,openrisc@lists.librecores.org,linux-parisc@vger.kernel.org,linuxppc-dev@lists.ozlabs.org,linux-s390@vger.kernel.org,linux-sh@vger.kernel.org,sparclinux@vger.kernel.org,linux-xtensa@linux-xtensa.org,linux-arch@vger.kernel.org
From: hpa@zytor.com
Message-ID: <9B46AFA6-C422-41FD-8E8A-356E44A6DCD2@zytor.com>

On March 4, 2017 1:38:05 PM PST, Stafford Horne <shorne@gmail.com> wrote:
>On Sat, Mar 04, 2017 at 11:15:17AM -0800, H. Peter Anvin wrote:
>> On 03/04/17 05:05, Russell King - ARM Linux wrote:
>> >>  
>> >> +static int futex_atomic_op_inuser(int encoded_op, u32 __user
>*uaddr)
>> >> +{
>> >> +	int op = (encoded_op >> 28) & 7;
>> >> +	int cmp = (encoded_op >> 24) & 15;
>> >> +	int oparg = (encoded_op << 8) >> 20;
>> >> +	int cmparg = (encoded_op << 20) >> 20;
>> > 
>> > Hmm.  oparg and cmparg look like they're doing these shifts to get
>sign
>> > extension of the 12-bit values by assuming that "int" is 32-bit -
>> > probably worth a comment, or for safety, they should be "s32" so
>it's
>> > not dependent on the bit-width of "int".
>> > 
>> 
>> For readability, perhaps we should make sign- and zero-extension an
>> explicit facility?
>
>There is some of this in already here, 32 and 64 bit versions:
>
>  include/linux/bitops.h
>
>Do we really need zero extension? It seems the same.
>
>Example implementation from bitops.h
>
>static inline __s32 sign_extend32(__u32 value, int index)
>{
>        __u8 shift = 31 - index;
>        return (__s32)(value << shift) >> shift;
>}
>
>> /*
>>  * Truncate an integer x to n bits, using sign- or
>>  * zero-extension, respectively.
>>  */
>> static inline __const_func__ s32 sex32(s32 x, int n)
>> {
>>   return (x << (32-n)) >> (32-n);
>> }
>> 
>> static inline __const_func__ s64 sex64(s64 x, int n)
>> {
>>   return (x << (64-n)) >> (64-n);
>> }
>> 
>> #define sex(x,y)						\
>> 	((__typeof__(x))					\
>> 	 (((__builtin_constant_p(y) && ((y) <= 32)) ||		\
>> 	   (sizeof(x) <= sizeof(s32)))				\
>> 	  ? sex32((x),(y)) : sex64((x),(y))))
>> 
>> static inline __const_func__ u32 zex32(u32 x, int n)
>> {
>>   return (x << (32-n)) >> (32-n);
>> }
>> 
>> static inline __const_func__ u64 zex64(u64 x, int n)
>> {
>>   return (x << (64-n)) >> (64-n);
>> }
>> 
>> #define zex(x,y)						\
>> 	((__typeof__(x))					\
>> 	 (((__builtin_constant_p(y) && ((y) <= 32)) ||		\
>> 	   (sizeof(x) <= sizeof(u32)))				\
>> 	  ? zex32((x),(y)) : zex64((x),(y))))
>> 

Signed versus unsigned...
-- 
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From - Thu Nov 08 21:39:40 2018
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From: "H. Peter Anvin" <hpa@zytor.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH 1/3] futex: remove duplicated code
Date: Sat, 04 Mar 2017 15:08:50 -0800
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        Jiri Slaby <jslaby@suse.cz>, akpm@linux-foundation.org,
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        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Richard Kuo <rkuo@codeaurora.org>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
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        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
To: Stafford Horne <shorne@gmail.com>
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<davem@davemloft.net>,Chris Metcalf <cmetcalf@mellanox.com>,Thomas Gleixner <tglx@linutronix.de>,Ingo Molnar <mingo@redhat.com>,Chris Zankel <chris@zankel.net>,Max Filippov <jcmvbkbc@gmail.com>,Arnd Bergmann <arnd@arndb.de>,x86@kernel.org,linux-alpha@vger.kernel.org,linux-snps-arc@lists.infradead.org,linux-arm-kernel@lists.infradead.org,linux-hexagon@vger.kernel.org,linux-ia64@vger.kernel.org,linux-mips@linux-mips.org,openrisc@lists.librecores.org,linux-parisc@vger.kernel.org,linuxppc-dev@lists.ozlabs.org,linux-s390@vger.kernel.org,linux-sh@vger.kernel.org,sparclinux@vger.kernel.org,linux-xtensa@linux-xtensa.org,linux-arch@vger.kernel.org
From: hpa@zytor.com
Message-ID: <CF18535E-39E7-44D3-88D0-80B9961E6681@zytor.com>

On March 4, 2017 1:38:05 PM PST, Stafford Horne <shorne@gmail.com> wrote:
>On Sat, Mar 04, 2017 at 11:15:17AM -0800, H. Peter Anvin wrote:
>> On 03/04/17 05:05, Russell King - ARM Linux wrote:
>> >>  
>> >> +static int futex_atomic_op_inuser(int encoded_op, u32 __user
>*uaddr)
>> >> +{
>> >> +	int op = (encoded_op >> 28) & 7;
>> >> +	int cmp = (encoded_op >> 24) & 15;
>> >> +	int oparg = (encoded_op << 8) >> 20;
>> >> +	int cmparg = (encoded_op << 20) >> 20;
>> > 
>> > Hmm.  oparg and cmparg look like they're doing these shifts to get
>sign
>> > extension of the 12-bit values by assuming that "int" is 32-bit -
>> > probably worth a comment, or for safety, they should be "s32" so
>it's
>> > not dependent on the bit-width of "int".
>> > 
>> 
>> For readability, perhaps we should make sign- and zero-extension an
>> explicit facility?
>
>There is some of this in already here, 32 and 64 bit versions:
>
>  include/linux/bitops.h
>
>Do we really need zero extension? It seems the same.
>
>Example implementation from bitops.h
>
>static inline __s32 sign_extend32(__u32 value, int index)
>{
>        __u8 shift = 31 - index;
>        return (__s32)(value << shift) >> shift;
>}
>
>> /*
>>  * Truncate an integer x to n bits, using sign- or
>>  * zero-extension, respectively.
>>  */
>> static inline __const_func__ s32 sex32(s32 x, int n)
>> {
>>   return (x << (32-n)) >> (32-n);
>> }
>> 
>> static inline __const_func__ s64 sex64(s64 x, int n)
>> {
>>   return (x << (64-n)) >> (64-n);
>> }
>> 
>> #define sex(x,y)						\
>> 	((__typeof__(x))					\
>> 	 (((__builtin_constant_p(y) && ((y) <= 32)) ||		\
>> 	   (sizeof(x) <= sizeof(s32)))				\
>> 	  ? sex32((x),(y)) : sex64((x),(y))))
>> 
>> static inline __const_func__ u32 zex32(u32 x, int n)
>> {
>>   return (x << (32-n)) >> (32-n);
>> }
>> 
>> static inline __const_func__ u64 zex64(u64 x, int n)
>> {
>>   return (x << (64-n)) >> (64-n);
>> }
>> 
>> #define zex(x,y)						\
>> 	((__typeof__(x))					\
>> 	 (((__builtin_constant_p(y) && ((y) <= 32)) ||		\
>> 	   (sizeof(x) <= sizeof(u32)))				\
>> 	  ? zex32((x),(y)) : zex64((x),(y))))
>> 

Also, i strongly believe that making it syntactically cumbersome encodes people to open-code it which is bad...
-- 
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From - Thu Nov 08 21:39:40 2018
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Newsgroups: gmane.linux.ports.mips.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 1/3] futex: remove duplicated code
Date: Sun, 5 Mar 2017 20:52:07 -0500
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To: Jiri Slaby <jslaby@suse.cz>
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On Fri, Mar 03, 2017 at 01:27:10PM +0100, Jiri Slaby wrote:
> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
> 
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.
> 
> Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
> remove pointless access_ok() checks") as access_ok there returns true.
> We introduce it back to the helper for the sake of simplicity (it gets
> optimized away anyway).

Overall I'm in favor of this patch, and it's close to what I had in
mind in the commit message for
00b73d8d1b7131da03aec73011a7286f566fe87f. But I'd actually like to see
it go further. These ops are mainly (only?) used for the (almost never
used) FUTEX_WAKE_OP operation, and there's very little sense in trying
to optimize them with dedicated arch-specific forms like "lock xadd".
Instead the entire logic should be in an arch-generic file, and all
the arch should need to provide is a cmpxchg-on-user-memory primitive
for it to use. On most archs, the same cmpxchg used in kernelspace
should also work for user addresses, meaning a huge amount of
unmaintained, largely untested, junk code can be removed.

Rich



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Subject: [arch] ad21fc4faa:  INFO: trying to register non-static key.
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Greetings,

0day kernel testing robot got the below dmesg and the first bad commit is

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

commit ad21fc4faa2a1f919bac1073b885df9310dbc581
Author:     Laura Abbott <labbott@redhat.com>
AuthorDate: Mon Feb 6 16:31:57 2017 -0800
Commit:     Kees Cook <keescook@chromium.org>
CommitDate: Tue Feb 7 12:32:52 2017 -0800

    arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be common
    
    There are multiple architectures that support CONFIG_DEBUG_RODATA and
    CONFIG_SET_MODULE_RONX. These options also now have the ability to be
    turned off at runtime. Move these to an architecture independent
    location and make these options def_bool y for almost all of those
    arches.
    
    Signed-off-by: Laura Abbott <labbott@redhat.com>
    Acked-by: Ingo Molnar <mingo@kernel.org>
    Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
    Signed-off-by: Kees Cook <keescook@chromium.org>

0c744ea4f7  Linux 4.10-rc2
ad21fc4faa  arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be common
+-------------------------------------------------------+-----------+------------+
|                                                       | v4.10-rc2 | ad21fc4faa |
+-------------------------------------------------------+-----------+------------+
| boot_successes                                        | 920       | 732        |
| boot_failures                                         | 0         | 659        |
| Oops:#[##]                                            | 0         | 657        |
| EIP:__lock_acquire                                    | 0         | 187        |
| Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 0         | 152        |
| BUG:unable_to_handle_kernel                           | 0         | 558        |
| WARNING:at_lib/list_debug.c:#__list_del_entry_valid   | 0         | 99         |
| EIP:rb_erase                                          | 0         | 11         |
| Kernel_panic-not_syncing:Fatal_exception              | 0         | 503        |
| WARNING:at_lib/list_debug.c:#__list_add_valid         | 0         | 34         |
| EIP:__dev_remove_pack                                 | 0         | 36         |
| EIP:SyS_syncfs                                        | 0         | 1          |
| EIP:filp_close                                        | 0         | 239        |
| INFO:trying_to_register_non-static_key                | 0         | 11         |
| EIP:netlink_update_listeners                          | 0         | 17         |
| EIP:bpf_prog_free                                     | 0         | 39         |
| EIP:__fget_light                                      | 0         | 10         |
| EIP:netlink_compare                                   | 0         | 4          |
| EIP:ip_mc_drop_socket                                 | 0         | 20         |
| EIP:inet_release                                      | 0         | 15         |
| EIP:notifier_chain_unregister                         | 0         | 1          |
| EIP:__purge_vmap_area_lazy                            | 0         | 9          |
| WARNING:at_mm/vmalloc.c:#__vunmap                     | 0         | 4          |
| EIP:hashbin_insert                                    | 0         | 5          |
| EIP:__wake_up_common                                  | 0         | 8          |
| EIP:vfs_getattr_nosec                                 | 0         | 2          |
| EIP:sk_del_node_init                                  | 0         | 13         |
| BUG:spinlock_lockup_suspected_on_CPU                  | 0         | 3          |
| EIP:spin_dump                                         | 0         | 3          |
| EIP:SYSC_setsockopt                                   | 0         | 1          |
| EIP:find_vmap_area                                    | 0         | 3          |
| EIP:fanout_add                                        | 0         | 2          |
| EIP:lookup_address_in_pgd                             | 0         | 1          |
| EIP:packet_release                                    | 0         | 3          |
| EIP:notifier_chain_register                           | 0         | 1          |
| EIP:rht_head_hashfn                                   | 0         | 1          |
| EIP:vfs_fsync_range                                   | 0         | 1          |
| WARNING:at_kernel/locking/lockdep.c:#__lock_acquire   | 0         | 1          |
| EIP:do_sys_poll                                       | 0         | 1          |
| EIP:alloc_vmap_area                                   | 0         | 2          |
| EIP:__bpf_prog_release                                | 0         | 1          |
| EIP:rht_deferred_worker                               | 0         | 1          |
| EIP:hashbin_find                                      | 0         | 1          |
| EIP:__hlist_del                                       | 0         | 1          |
| EIP:statfs_by_dentry                                  | 0         | 1          |
| EIP:__unix_find_socket_byname                         | 0         | 2          |
| EIP:dnotify_flush                                     | 0         | 1          |
| EIP:SyS_fchdir                                        | 0         | 1          |
| EIP:__sock_create                                     | 0         | 1          |
| BUG:kernel_reboot-without-warning_in_test_stage       | 0         | 1          |
+-------------------------------------------------------+-----------+------------+

[   20.394006] irda_setsockopt: not allowed to set MAXSDUSIZE for this socket type!
[   20.898917] Fix your initscripts?
[   20.902677] mmap: trinity-c0 (1985) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt.
[   20.907974] warning: process `trinity-c0' used the obsolete bdflush system call
[   20.909084] Fix your initscripts?
[   20.914000] INFO: trying to register non-static key.
[   20.914591] the code is fine but needs lockdep annotation.
[   20.915204] turning off the locking correctness validator.
[   20.915819] CPU: 0 PID: 395 Comm: trinity-main Not tainted 4.10.0-rc2-00001-gad21fc4 #1
[   20.916745] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[   20.917897] Call Trace:
[   20.918254]  show_stack+0x5c/0x60
[   20.918693]  dump_stack+0x16/0x18
[   20.919122]  register_lock_class+0x11a/0x2d5
[   20.919633]  ? pvclock_clocksource_read+0xdd/0x1e0
[   20.920183]  __lock_acquire+0xd9/0x55e
[   20.920707]  lock_acquire+0x93/0xf5
[   20.921155]  ? lock_sock_nested+0x32/0xa8
[   20.921698]  _raw_spin_lock_bh+0x48/0x8e
[   20.922185]  ? lock_sock_nested+0x32/0xa8
[   20.922679]  lock_sock_nested+0x32/0xa8
[   20.923156]  ? rcu_read_unlock+0x1f/0x1f
[   20.923645]  lock_sock+0xa/0xc
[   20.924104]  irda_release+0x3e/0x1f8
[   20.924564]  ? __might_sleep+0xb0/0xce
[   20.925035]  sock_release+0x32/0xa9
[   20.925528]  sock_close+0x10/0x14
[   20.925960]  __fput+0x199/0x2b1
[   20.926378]  ____fput+0xd/0xf
[   20.926785]  task_work_run+0x8a/0xb1
[   20.927240]  do_exit+0x5e4/0xddc
[   20.927678]  ? up_read+0x1b/0x2d
[   20.928104]  do_group_exit+0x103/0x103
[   20.928576]  SyS_exit_group+0x16/0x16
[   20.929038]  do_fast_syscall_32+0x11f/0x15b
[   20.929592]  entry_SYSENTER_32+0x53/0x86
[   20.930074] EIP: 0xb77a6b05
[   20.930460] EFLAGS: 00000296 CPU: 0
[   20.930910] EAX: ffffffda EBX: 00000000 ECX: 0000002d EDX: b779d8ac
[   20.931593] ESI: 00000000 EDI: 00000001 EBP: bf83ea78 ESP: bf83e98c
[   20.932274]  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
[   92.620508] BUG: spinlock lockup suspected on CPU#0, trinity-main/395
[   92.622020] BUG: unable to handle kernel NULL pointer dereference at 000002b0
[   92.622801] IP: spin_dump+0x75/0xb5
[   92.623363] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 
[   92.623370] 
[   92.624362] Oops: 0000 [#1]
[   92.624843] Modules linked in:
[   92.625348] CPU: 0 PID: 395 Comm: trinity-main Not tainted 4.10.0-rc2-00001-gad21fc4 #1
[   92.626257] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[   92.627526] task: df212380 task.stack: df074000
[   92.628088] EIP: spin_dump+0x75/0xb5
[   92.628607] EFLAGS: 00010206 CPU: 0
[   92.629128] EAX: 000003b8 EBX: 00000028 ECX: fffff031 EDX: 000003b5
[   92.629805] ESI: df7dc050 EDI: 00000001 EBP: df075e18 ESP: df075df4
[   92.630582]  DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068
[   92.631233] CR0: 80050033 CR2: 000002b0 CR3: 1f20b9e0 CR4: 00000630
[   92.631912] DR0: b7254000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[   92.632744] DR6: fffe0ff0 DR7: 00000600
[   92.633217] Call Trace:
[   92.633577]  do_raw_spin_lock+0x157/0x173
[   92.634132]  _raw_spin_lock_bh+0x7d/0x8e
[   92.634725]  ? lock_sock_nested+0x32/0xa8
[   92.635217]  lock_sock_nested+0x32/0xa8
[   92.635709]  ? rcu_read_unlock+0x1f/0x1f
[   92.636316]  lock_sock+0xa/0xc
[   92.636734]  irda_release+0x3e/0x1f8
[   92.637186]  ? __might_sleep+0xb0/0xce
[   92.637720]  sock_release+0x32/0xa9
[   92.638272]  sock_close+0x10/0x14
[   92.638709]  __fput+0x199/0x2b1
[   92.639125]  ____fput+0xd/0xf
[   92.639576]  task_work_run+0x8a/0xb1
[   92.640128]  do_exit+0x5e4/0xddc
[   92.640555]  ? up_read+0x1b/0x2d
[   92.641029]  do_group_exit+0x103/0x103
[   92.641585]  SyS_exit_group+0x16/0x16
[   92.642115]  do_fast_syscall_32+0x11f/0x15b
[   92.642628]  entry_SYSENTER_32+0x53/0x86
[   92.643135] EIP: 0xb77a6b05
[   92.643618] EFLAGS: 00000296 CPU: 0
[   92.644091] EAX: ffffffda EBX: 00000000 ECX: 0000002d EDX: b779d8ac
[   92.644778] ESI: 00000000 EDI: 00000001 EBP: bf83ea78 ESP: bf83e98c
[   92.645610]  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
[   92.646218] Code: 24 0c c7 44 24 08 00 00 00 00 89 54 24 04 89 4c 24 10 c7 04 24 93 ac 48 c2 e8 60 b0 09 00 85 db 8b 4e 08 74 0e 8d 83 90 03 00 00 <8b> 93 88 02 00 00 eb 08 83 ca ff b8 52 57 4f c2 89 44 24 0c 8b
[   92.648209] EIP: spin_dump+0x75/0xb5 SS:ESP: 0068:df075df4
[   92.648824] CR2: 00000000000002b0
[   92.649253] ---[ end trace f9b7cb6d4c53cb0b ]---
[   92.649793] Kernel panic - not syncing: Fatal exception in interrupt

                                                         # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start 24bbf5a0db07b308f3e183442c6e9a18b2ff37e2 c470abd4fde40ea6a0846a2beab642a578c0b8cd --
git bisect  bad 297fff9e5ae39fdc244396ab480b0b064db401fa  # 16:26  B     40     6    0  49  Merge 'linux-review/Sebastian-Reichel/dt-bindings-Add-vendor-prefix-for-Motorola/20170305-035036' into devel-spot-201703051016
git bisect  bad 42e9ae034908a4bab0056d8249d5c8a41e11391a  # 16:31  B    115     6    0  73  Merge 'linux-review/fgao-ikuai8-com/netfilter-nat_masquerade-Check-oom-when-invoke-nfct_nat/20170305-070948' into devel-spot-201703051016
git bisect  bad c2850e62b2e2bdf0eabbe41b4123979234094c7c  # 16:31  B    121     5    0  67  Merge 'pinchartl-media/drm/du/vsp-race' into devel-spot-201703051016
git bisect good 941138d45b408fa61d0a15789b7f854126c66dfe  # 16:36  G    751     0    0   0  Merge 'acpi/turbostat' into devel-spot-201703051016
git bisect  bad e8762b16e576e81d32d39d5a559d5cde82ce38c1  # 16:36  B    124    17    0  96  Merge 'pinchartl-media/drm/next/du' into devel-spot-201703051016
git bisect  bad b2064617c74f301dab1448f1f9c8dbb3c8021058  # 16:37  B    132     3    0  57  Merge tag 'driver-core-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
git bisect  bad 1e74a2eb1f5cc7f2f2b5aa9c9eeecbcf352220a3  # 16:42  B     74    10    0 108  Merge tag 'gcc-plugins-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
git bisect good fd4a61e08aa79f2b7835b25c6f94f27bd2d65990  # 16:42  G    751     0    0   0  sched/core: Fix build paravirt build on arm and arm64
git bisect good c9341ee0af4df0af8b727873ef851227345defed  # 16:42  G    751     0    0   0  Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
git bisect good 5ab356626f3cf97f00280f17a52e4b5b4a13e038  # 16:42  G    751     0    0   0  Merge tag 'pinctrl-v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
git bisect good 974eadf1fc4f9bd0e9da686e7ba6c3e4e708fc45  # 16:42  G    751     0    0   0  [media] lmedm04: make lme2510_powerup a little smaller
git bisect good ff58d005cd10fcd372787cceac547e11cf706ff6  # 16:42  G    751     0    0   0  Merge tag 'media/v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
git bisect good 97a229f90731894f46b85c20bcc1842f4a63cb78  # 16:42  G    751     0    0   1  Merge tag 'dmaengine-4.11-rc1' of git://git.infradead.org/users/vkoul/slave-dma
git bisect good 01f2901a264d954d3985e8bce1bf637ae52d4918  # 16:42  G    751     0    0   0  ahci: qoriq: report error when ecc register address is missing in dts
git bisect good 6d1dd93ea0d0f0fb61b5450a2668896028ce3f75  # 16:42  G    750     0    0   1  Merge tag 'pstore-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
git bisect  bad 7bb033829ef3ecfc491c0ed0197966e8f197fbdc  # 16:42  B    119    12    0 113  Merge tag 'rodata-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
git bisect good 4c5d7bc63775b40631b75f6c59a3a3005455262d  # 16:42  G    751     0    0   0  usercopy: Add tests for all get_user() sizes
git bisect  bad 0f5bf6d0afe4be6e1391908ff2d6dc9730e91550  # 16:42  B    142     5    0 173  arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX
git bisect  bad ad21fc4faa2a1f919bac1073b885df9310dbc581  # 16:47  B    731    11    0 649  arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be common
# first bad commit: [ad21fc4faa2a1f919bac1073b885df9310dbc581] arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be common
git bisect good 0c744ea4f77d72b3dcebb7a8f2684633ec79be88  # 18:16  G    901     0    0   3  Linux 4.10-rc2
# extra tests on HEAD of linux-devel/devel-spot-201703051016
git bisect  bad 24bbf5a0db07b308f3e183442c6e9a18b2ff37e2  # 18:17  B     32     4    0  21  0day head guard for 'devel-spot-201703051016'
# extra tests on tree/branch linus/master
git bisect  bad c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201  # 18:17  B    342    42    0 372  Linux 4.11-rc1
# extra tests on tree/branch linux-next/master
git bisect  bad 9d51244afbfc61134c05e02f789d3aa2eaca2da0  # 18:17  B    353    31    0 369  Add linux-next specific files for 20170306

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/lkp                          Intel Corporation

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agQeT/NSh4wYIYdYC0yGjjzIrFxcjrHfy2ddVfdU4uwSfuefMhCF9mpasYovbRuI9cUXfzU9
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g9R6uMmQSJ/bmTnIAxrKWTXdSxsm2ik8jantJaVv6tkAfqwjfpGDyYbSwBv+QIeiaKuU5tXC
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t2/e/B7/+Mvr78+jzzeBi+RDvC0x+iMBi2rr+Qf4sX7+6df4t/OLP84vony1sq1mRidlPoua
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uMDBcORwUqdT6Wh3mUQrfuVLbXV1tCS0CNBtjO42+hbWBPHBrU1/evsVJdv/AIVM+7sh+gEA

--=_58bd374c.J3Hg7F/xfixvxDlduekC4sw75YkQEkERg00qVSlCOnSudHP3
Content-Type: text/plain;
 charset=us-ascii
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="reproduce-quantal-lkp-hsw01-20:20170306132653:i386-randconfig-i1-201710:4.10.0-rc2-00001-gad21fc4:1"

#!/bin/bash

kernel=$1
initrd=quantal-core-i386.cgz

wget --no-clobber https://github.com/fengguang/reproduce-kernel-bug/raw/master/initrd/$initrd

kvm=(
	qemu-system-x86_64
	-enable-kvm
	-cpu kvm64
	-kernel $kernel
	-initrd $initrd
	-m 512
	-smp 2
	-device e1000,netdev=net0
	-netdev user,id=net0
	-boot order=nc
	-no-reboot
	-watchdog i6300esb
	-watchdog-action debug
	-rtc base=localtime
	-serial stdio
	-display none
	-monitor null
)

append=(
	root=/dev/ram0
	hung_task_panic=1
	debug
	apic=debug
	sysrq_always_enabled
	rcupdate.rcu_cpu_stall_timeout=100
	net.ifnames=0
	printk.devkmsg=on
	panic=-1
	softlockup_panic=1
	nmi_watchdog=panic
	oops=panic
	load_ramdisk=2
	prompt_ramdisk=0
	drbd.minor_count=8
	systemd.log_level=err
	ignore_loglevel
	earlyprintk=ttyS0,115200
	console=ttyS0,115200
	console=tty0
	vga=normal
	rw
	drbd.minor_count=8
)

"${kvm[@]}" -append "${append[*]}"

--=_58bd374c.J3Hg7F/xfixvxDlduekC4sw75YkQEkERg00qVSlCOnSudHP3
Content-Type: text/plain;
 charset=us-ascii
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="config-4.10.0-rc2-00001-gad21fc4"

#
# Automatically generated file; DO NOT EDIT.
# Linux/i386 4.10.0-rc2 Kernel Configuration
#
# CONFIG_64BIT is not set
CONFIG_X86_32=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf32-i386"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/i386_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_BITS_MAX=16
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_PGTABLE_LEVELS=3
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_FHANDLE=y
CONFIG_USELIB=y
CONFIG_AUDIT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
CONFIG_AUDITSYSCALL=y
CONFIG_AUDIT_WATCH=y
CONFIG_AUDIT_TREE=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_DEBUG=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y

#
# Timers subsystem
#
CONFIG_HZ_PERIODIC=y
# CONFIG_NO_HZ_IDLE is not set
# CONFIG_NO_HZ is not set
# CONFIG_HIGH_RES_TIMERS is not set

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_IRQ_TIME_ACCOUNTING=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TASKS_RCU=y
# CONFIG_RCU_STALL_COMMON is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_EXPEDITE_BOOT is not set
CONFIG_BUILD_BIN2C=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=17
CONFIG_NMI_LOG_BUF_SHIFT=13
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_CGROUPS=y
# CONFIG_MEMCG is not set
# CONFIG_BLK_CGROUP is not set
# CONFIG_CGROUP_SCHED is not set
# CONFIG_CGROUP_PIDS is not set
# CONFIG_CGROUP_FREEZER is not set
# CONFIG_CPUSETS is not set
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
# CONFIG_CGROUP_PERF is not set
# CONFIG_CGROUP_BPF is not set
# CONFIG_CGROUP_DEBUG is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
# CONFIG_RD_LZO is not set
# CONFIG_RD_LZ4 is not set
CONFIG_INITRAMFS_COMPRESSION=".gz"
# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_BPF=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_POSIX_TIMERS=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_KALLSYMS_ABSOLUTE_PERCPU is not set
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_PRINTK=y
CONFIG_PRINTK_NMI=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_BPF_SYSCALL=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y
# CONFIG_USERFAULTFD is not set
CONFIG_PCI_QUIRKS=y
CONFIG_MEMBARRIER=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_COMPAT_BRK=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SYSTEM_DATA_VERIFICATION is not set
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
CONFIG_OPROFILE=m
CONFIG_OPROFILE_EVENT_MULTIPLEX=y
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
# CONFIG_KPROBES is not set
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_UPROBES is not set
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_NMI=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_HAVE_GCC_PLUGINS=y
# CONFIG_GCC_PLUGINS is not set
CONFIG_HAVE_CC_STACKPROTECTOR=y
CONFIG_CC_STACKPROTECTOR=y
# CONFIG_CC_STACKPROTECTOR_NONE is not set
CONFIG_CC_STACKPROTECTOR_REGULAR=y
# CONFIG_CC_STACKPROTECTOR_STRONG is not set
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=8
CONFIG_HAVE_COPY_THREAD_TLS=y
# CONFIG_HAVE_ARCH_HASH is not set
# CONFIG_ISA_BUS_API is not set
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OLD_SIGACTION=y
# CONFIG_CPU_NO_EFFICIENT_FFS is not set
# CONFIG_HAVE_ARCH_VMAP_STACK is not set
# CONFIG_ARCH_OPTIONAL_KERNEL_RWX is not set
# CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_DEBUG_RODATA=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_DEBUG_SET_MODULE_RONX=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
CONFIG_HAVE_GENERIC_DMA_COHERENT=y
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
# CONFIG_MODULE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
# CONFIG_MODULE_COMPRESS is not set
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_LBDAF=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_ZONED=y
# CONFIG_BLK_CMDLINE_PARSER is not set
# CONFIG_BLK_WBT is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_BLK_MQ_PCI=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=m
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_NOOP=y
CONFIG_DEFAULT_IOSCHED="noop"
CONFIG_ASN1=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
# CONFIG_FREEZER is not set

#
# Processor type and features
#
CONFIG_ZONE_DMA=y
# CONFIG_SMP is not set
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_FAST_FEATURE_TESTS=y
# CONFIG_X86_MPPARSE is not set
# CONFIG_GOLDFISH is not set
CONFIG_INTEL_RDT_A=y
# CONFIG_X86_EXTENDED_PLATFORM is not set
# CONFIG_X86_INTEL_LPSS is not set
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
CONFIG_IOSF_MBI=m
CONFIG_IOSF_MBI_DEBUG=y
# CONFIG_X86_32_IRIS is not set
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
# CONFIG_XEN is not set
CONFIG_KVM_GUEST=y
# CONFIG_KVM_DEBUG_FS is not set
# CONFIG_LGUEST_GUEST is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
CONFIG_NO_BOOTMEM=y
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
# CONFIG_M686 is not set
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
# CONFIG_MPENTIUM4 is not set
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MELAN is not set
# CONFIG_MGEODEGX1 is not set
# CONFIG_MGEODE_LX is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_MVIAC7 is not set
CONFIG_MCORE2=y
# CONFIG_MATOM is not set
CONFIG_X86_GENERIC=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=5
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_CPU_SUP_TRANSMETA_32=y
CONFIG_HPET_TIMER=y
CONFIG_DMI=y
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
CONFIG_NR_CPUS=1
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
CONFIG_UP_LATE_INIT=y
CONFIG_X86_UP_APIC=y
CONFIG_X86_UP_IOAPIC=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
# CONFIG_X86_MCE is not set

#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=y
# CONFIG_PERF_EVENTS_INTEL_RAPL is not set
CONFIG_PERF_EVENTS_INTEL_CSTATE=m
CONFIG_PERF_EVENTS_AMD_POWER=y
CONFIG_X86_LEGACY_VM86=y
CONFIG_VM86=y
CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX32=y
# CONFIG_TOSHIBA is not set
# CONFIG_I8K is not set
# CONFIG_X86_REBOOTFIXUPS is not set
# CONFIG_MICROCODE is not set
CONFIG_X86_MSR=m
# CONFIG_X86_CPUID is not set
CONFIG_NOHIGHMEM=y
# CONFIG_HIGHMEM4G is not set
# CONFIG_HIGHMEM64G is not set
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_X86_PAE=y
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_NEED_NODE_MEMMAP_SIZE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ILLEGAL_POINTER_VALUE=0
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_STATIC=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
# CONFIG_COMPACTION is not set
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
# CONFIG_TRANSPARENT_HUGEPAGE is not set
CONFIG_NEED_PER_CPU_KM=y
CONFIG_CLEANCACHE=y
# CONFIG_FRONTSWAP is not set
# CONFIG_CMA is not set
# CONFIG_ZPOOL is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSMALLOC is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_FRAME_VECTOR=y
# CONFIG_X86_PMEM_LEGACY is not set
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y
CONFIG_X86_RESERVE_LOW=64
CONFIG_MATH_EMULATION=y
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=0
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
CONFIG_X86_INTEL_MPX=y
# CONFIG_EFI is not set
# CONFIG_SECCOMP is not set
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
CONFIG_HZ_300=y
# CONFIG_HZ_1000 is not set
CONFIG_HZ=300
# CONFIG_SCHED_HRTICK is not set
# CONFIG_KEXEC is not set
CONFIG_PHYSICAL_START=0x1000000
# CONFIG_RELOCATABLE is not set
CONFIG_PHYSICAL_ALIGN=0x200000
# CONFIG_COMPAT_VDSO is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_MODIFY_LDT_SYSCALL=y

#
# Power management and ACPI options
#
# CONFIG_SUSPEND is not set
# CONFIG_HIBERNATION is not set
# CONFIG_PM is not set
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
CONFIG_ACPI_DEBUGGER=y
CONFIG_ACPI_DEBUGGER_USER=y
# CONFIG_ACPI_PROCFS_POWER is not set
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=m
CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_VIDEO=m
# CONFIG_ACPI_FAN is not set
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_PROCESSOR=m
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
CONFIG_ACPI_THERMAL=m
# CONFIG_ACPI_CUSTOM_DSDT is not set
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_DEBUG=y
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
CONFIG_ACPI_SBS=m
CONFIG_ACPI_HED=y
CONFIG_ACPI_CUSTOM_METHOD=y
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
# CONFIG_ACPI_NFIT is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
# CONFIG_ACPI_APEI is not set
CONFIG_DPTF_POWER=y
# CONFIG_PMIC_OPREGION is not set
CONFIG_ACPI_CONFIGFS=y
# CONFIG_SFI is not set

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set

#
# CPU Idle
#
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
CONFIG_INTEL_IDLE=y

#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
# CONFIG_PCI_GOBIOS is not set
# CONFIG_PCI_GOMMCONFIG is not set
CONFIG_PCI_GODIRECT=y
# CONFIG_PCI_GOANY is not set
CONFIG_PCI_DIRECT=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
# CONFIG_HOTPLUG_PCI_PCIE is not set
# CONFIG_PCIEAER is not set
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEBUG=y
# CONFIG_PCIEASPM_DEFAULT is not set
# CONFIG_PCIEASPM_POWERSAVE is not set
CONFIG_PCIEASPM_PERFORMANCE=y
CONFIG_PCIE_DPC=y
# CONFIG_PCIE_PTM is not set
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
# CONFIG_PCI_DEBUG is not set
CONFIG_PCI_REALLOC_ENABLE_AUTO=y
CONFIG_PCI_STUB=m
# CONFIG_HT_IRQ is not set
CONFIG_PCI_ATS=y
# CONFIG_PCI_IOV is not set
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
CONFIG_PCI_LABEL=y
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_HOTPLUG_PCI_ACPI_IBM=m
# CONFIG_HOTPLUG_PCI_CPCI is not set
CONFIG_HOTPLUG_PCI_SHPC=m

#
# PCI host controller drivers
#
# CONFIG_PCIE_DW_PLAT is not set
CONFIG_ISA_DMA_API=y
# CONFIG_ISA is not set
# CONFIG_SCx200 is not set
# CONFIG_ALIX is not set
CONFIG_NET5501=y
CONFIG_GEOS=y
CONFIG_AMD_NB=y
CONFIG_PCCARD=y
CONFIG_PCMCIA=m
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_CARDBUS=y

#
# PC-card bridges
#
CONFIG_YENTA=y
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
# CONFIG_PD6729 is not set
CONFIG_I82092=m
CONFIG_PCCARD_NONSTATIC=y
# CONFIG_RAPIDIO is not set
# CONFIG_X86_SYSFB is not set

#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_HAVE_AOUT=y
# CONFIG_BINFMT_AOUT is not set
CONFIG_BINFMT_MISC=m
CONFIG_COREDUMP=y
CONFIG_COMPAT_32=y
CONFIG_HAVE_ATOMIC_IOMAP=y
CONFIG_PMC_ATOM=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=m
CONFIG_XFRM_SUB_POLICY=y
# CONFIG_XFRM_MIGRATE is not set
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_IPCOMP=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=y
CONFIG_NET_IPGRE_DEMUX=y
CONFIG_NET_IP_TUNNEL=y
CONFIG_NET_IPGRE=y
# CONFIG_SYN_COOKIES is not set
CONFIG_NET_IPVTI=m
CONFIG_NET_UDP_TUNNEL=y
CONFIG_NET_FOU=y
CONFIG_NET_FOU_IP_TUNNELS=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=y
CONFIG_INET_IPCOMP=y
CONFIG_INET_XFRM_TUNNEL=y
CONFIG_INET_TUNNEL=y
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=y
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
CONFIG_INET_UDP_DIAG=m
# CONFIG_INET_RAW_DIAG is not set
# CONFIG_INET_DIAG_DESTROY is not set
CONFIG_TCP_CONG_ADVANCED=y
# CONFIG_TCP_CONG_BIC is not set
CONFIG_TCP_CONG_CUBIC=m
# CONFIG_TCP_CONG_WESTWOOD is not set
CONFIG_TCP_CONG_HTCP=m
# CONFIG_TCP_CONG_HSTCP is not set
# CONFIG_TCP_CONG_HYBLA is not set
CONFIG_TCP_CONG_VEGAS=m
# CONFIG_TCP_CONG_NV is not set
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=y
CONFIG_TCP_CONG_VENO=y
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=y
CONFIG_TCP_CONG_DCTCP=m
CONFIG_TCP_CONG_CDG=y
CONFIG_TCP_CONG_BBR=y
CONFIG_DEFAULT_VENO=y
# CONFIG_DEFAULT_CDG is not set
# CONFIG_DEFAULT_BBR is not set
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="veno"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NET_PTP_CLASSIFY=y
CONFIG_NETWORK_PHY_TIMESTAMPING=y
# CONFIG_NETFILTER is not set
CONFIG_IP_DCCP=m
CONFIG_INET_DCCP_DIAG=m

#
# DCCP CCIDs Configuration
#
CONFIG_IP_DCCP_CCID2_DEBUG=y
CONFIG_IP_DCCP_CCID3=y
# CONFIG_IP_DCCP_CCID3_DEBUG is not set
CONFIG_IP_DCCP_TFRC_LIB=y

#
# DCCP Kernel Hacking
#
# CONFIG_IP_DCCP_DEBUG is not set
CONFIG_IP_SCTP=y
CONFIG_SCTP_DBG_OBJCNT=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5 is not set
CONFIG_SCTP_DEFAULT_COOKIE_HMAC_SHA1=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
# CONFIG_SCTP_COOKIE_HMAC_MD5 is not set
CONFIG_SCTP_COOKIE_HMAC_SHA1=y
CONFIG_INET_SCTP_DIAG=m
# CONFIG_RDS is not set
CONFIG_TIPC=m
CONFIG_TIPC_MEDIA_UDP=y
# CONFIG_ATM is not set
CONFIG_L2TP=y
CONFIG_L2TP_DEBUGFS=m
CONFIG_L2TP_V3=y
# CONFIG_L2TP_IP is not set
CONFIG_L2TP_ETH=m
CONFIG_STP=m
CONFIG_GARP=m
CONFIG_MRP=m
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
CONFIG_NET_DSA=m
CONFIG_NET_DSA_HWMON=y
CONFIG_NET_DSA_TAG_BRCM=y
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_VLAN_8021Q_MVRP=y
CONFIG_DECNET=m
CONFIG_DECNET_ROUTER=y
CONFIG_LLC=y
CONFIG_LLC2=y
# CONFIG_IPX is not set
CONFIG_ATALK=y
CONFIG_DEV_APPLETALK=m
CONFIG_IPDDP=m
CONFIG_IPDDP_ENCAP=y
# CONFIG_X25 is not set
CONFIG_LAPB=y
CONFIG_PHONET=m
CONFIG_IEEE802154=y
CONFIG_IEEE802154_NL802154_EXPERIMENTAL=y
CONFIG_IEEE802154_SOCKET=y
CONFIG_MAC802154=y
# CONFIG_NET_SCHED is not set
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=y
CONFIG_BATMAN_ADV=m
CONFIG_BATMAN_ADV_BATMAN_V=y
CONFIG_BATMAN_ADV_BLA=y
CONFIG_BATMAN_ADV_DAT=y
CONFIG_BATMAN_ADV_NC=y
CONFIG_BATMAN_ADV_MCAST=y
CONFIG_BATMAN_ADV_DEBUGFS=y
# CONFIG_BATMAN_ADV_DEBUG is not set
# CONFIG_OPENVSWITCH is not set
CONFIG_VSOCKETS=m
CONFIG_VMWARE_VMCI_VSOCKETS=m
CONFIG_VIRTIO_VSOCKETS_COMMON=m
# CONFIG_NETLINK_DIAG is not set
CONFIG_MPLS=y
# CONFIG_NET_MPLS_GSO is not set
CONFIG_MPLS_ROUTING=m
CONFIG_MPLS_IPTUNNEL=m
CONFIG_HSR=m
CONFIG_NET_SWITCHDEV=y
CONFIG_NET_L3_MASTER_DEV=y
CONFIG_NET_NCSI=y
# CONFIG_SOCK_CGROUP_DATA is not set
# CONFIG_CGROUP_NET_PRIO is not set
# CONFIG_CGROUP_NET_CLASSID is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y

#
# Network testing
#
CONFIG_NET_PKTGEN=y
CONFIG_NET_DROP_MONITOR=y
# CONFIG_HAMRADIO is not set
CONFIG_CAN=y
CONFIG_CAN_RAW=y
# CONFIG_CAN_BCM is not set
# CONFIG_CAN_GW is not set

#
# CAN Device Drivers
#
CONFIG_CAN_VCAN=y
CONFIG_CAN_SLCAN=m
# CONFIG_CAN_DEV is not set
# CONFIG_CAN_DEBUG_DEVICES is not set
CONFIG_IRDA=y

#
# IrDA protocols
#
# CONFIG_IRLAN is not set
# CONFIG_IRNET is not set
# CONFIG_IRCOMM is not set
CONFIG_IRDA_ULTRA=y

#
# IrDA options
#
CONFIG_IRDA_CACHE_LAST_LSAP=y
CONFIG_IRDA_FAST_RR=y
CONFIG_IRDA_DEBUG=y

#
# Infrared-port device drivers
#

#
# SIR device drivers
#
# CONFIG_IRTTY_SIR is not set

#
# Dongle support
#
CONFIG_KINGSUN_DONGLE=m
CONFIG_KSDAZZLE_DONGLE=m
CONFIG_KS959_DONGLE=y

#
# FIR device drivers
#
# CONFIG_USB_IRDA is not set
CONFIG_SIGMATEL_FIR=y
# CONFIG_NSC_FIR is not set
CONFIG_WINBOND_FIR=y
# CONFIG_TOSHIBA_FIR is not set
CONFIG_SMC_IRCC_FIR=y
CONFIG_ALI_FIR=y
CONFIG_VLSI_FIR=m
CONFIG_VIA_FIR=y
CONFIG_MCS_FIR=y
CONFIG_BT=m
CONFIG_BT_BREDR=y
CONFIG_BT_RFCOMM=y
# CONFIG_BT_RFCOMM_TTY is not set
CONFIG_BT_BNEP=m
CONFIG_BT_BNEP_MC_FILTER=y
# CONFIG_BT_BNEP_PROTO_FILTER is not set
# CONFIG_BT_HIDP is not set
CONFIG_BT_HS=y
# CONFIG_BT_LE is not set
CONFIG_BT_LEDS=y
# CONFIG_BT_SELFTEST is not set
# CONFIG_BT_DEBUGFS is not set

#
# Bluetooth device drivers
#
CONFIG_BT_INTEL=m
CONFIG_BT_BCM=m
CONFIG_BT_QCA=m
# CONFIG_BT_HCIBTUSB is not set
# CONFIG_BT_HCIBTSDIO is not set
CONFIG_BT_HCIUART=m
CONFIG_BT_HCIUART_H4=y
CONFIG_BT_HCIUART_BCSP=y
CONFIG_BT_HCIUART_ATH3K=y
# CONFIG_BT_HCIUART_LL is not set
# CONFIG_BT_HCIUART_3WIRE is not set
# CONFIG_BT_HCIUART_INTEL is not set
CONFIG_BT_HCIUART_BCM=y
CONFIG_BT_HCIUART_QCA=y
CONFIG_BT_HCIUART_AG6XX=y
# CONFIG_BT_HCIUART_MRVL is not set
CONFIG_BT_HCIBCM203X=m
# CONFIG_BT_HCIBPA10X is not set
# CONFIG_BT_HCIBFUSB is not set
CONFIG_BT_HCIDTL1=m
CONFIG_BT_HCIBT3C=m
CONFIG_BT_HCIBLUECARD=m
CONFIG_BT_HCIBTUART=m
CONFIG_BT_HCIVHCI=m
CONFIG_BT_MRVL=m
CONFIG_BT_MRVL_SDIO=m
CONFIG_AF_RXRPC=y
# CONFIG_AF_RXRPC_INJECT_LOSS is not set
# CONFIG_AF_RXRPC_DEBUG is not set
CONFIG_RXKAD=y
CONFIG_AF_KCM=m
CONFIG_STREAM_PARSER=m
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_WIRELESS_EXT=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_WEXT_SPY=y
CONFIG_WEXT_PRIV=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_DEFAULT_PS is not set
# CONFIG_CFG80211_DEBUGFS is not set
# CONFIG_CFG80211_INTERNAL_REGDB is not set
CONFIG_CFG80211_CRDA_SUPPORT=y
CONFIG_CFG80211_WEXT=y
CONFIG_CFG80211_WEXT_EXPORT=y
CONFIG_LIB80211=m
CONFIG_LIB80211_CRYPT_WEP=m
CONFIG_LIB80211_CRYPT_CCMP=m
CONFIG_LIB80211_CRYPT_TKIP=m
CONFIG_LIB80211_DEBUG=y
# CONFIG_MAC80211 is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
# CONFIG_WIMAX is not set
CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_REGULATOR is not set
CONFIG_RFKILL_GPIO=m
# CONFIG_NET_9P is not set
CONFIG_CAIF=m
CONFIG_CAIF_DEBUG=y
CONFIG_CAIF_NETDEV=m
# CONFIG_CAIF_USB is not set
CONFIG_CEPH_LIB=y
# CONFIG_CEPH_LIB_PRETTYDEBUG is not set
CONFIG_CEPH_LIB_USE_DNS_RESOLVER=y
# CONFIG_NFC is not set
CONFIG_LWTUNNEL=y
CONFIG_LWTUNNEL_BPF=y
CONFIG_DST_CACHE=y
# CONFIG_NET_DEVLINK is not set
CONFIG_MAY_USE_DEVLINK=y

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
CONFIG_WANT_DEV_COREDUMP=y
CONFIG_ALLOW_DEV_COREDUMP=y
CONFIG_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
CONFIG_DEBUG_TEST_DRIVER_REMOVE=y
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_SPI=y
CONFIG_REGMAP_SPMI=m
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_DMA_SHARED_BUFFER=y
CONFIG_DMA_FENCE_TRACE=y

#
# Bus devices
#
CONFIG_CONNECTOR=m
CONFIG_MTD=m
# CONFIG_MTD_TESTS is not set
CONFIG_MTD_REDBOOT_PARTS=m
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
# CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED is not set
CONFIG_MTD_REDBOOT_PARTS_READONLY=y
CONFIG_MTD_CMDLINE_PARTS=m
CONFIG_MTD_OF_PARTS=m
CONFIG_MTD_AR7_PARTS=m

#
# User Modules And Translation Layers
#
CONFIG_MTD_BLKDEVS=m
# CONFIG_MTD_BLOCK is not set
CONFIG_MTD_BLOCK_RO=m
CONFIG_FTL=m
CONFIG_NFTL=m
CONFIG_NFTL_RW=y
CONFIG_INFTL=m
CONFIG_RFD_FTL=m
CONFIG_SSFDC=m
# CONFIG_SM_FTL is not set
CONFIG_MTD_OOPS=m
CONFIG_MTD_SWAP=m
# CONFIG_MTD_PARTITIONED_MASTER is not set

#
# RAM/ROM/Flash chip drivers
#
# CONFIG_MTD_CFI is not set
CONFIG_MTD_JEDECPROBE=m
CONFIG_MTD_GEN_PROBE=m
CONFIG_MTD_CFI_ADV_OPTIONS=y
# CONFIG_MTD_CFI_NOSWAP is not set
CONFIG_MTD_CFI_BE_BYTE_SWAP=y
# CONFIG_MTD_CFI_LE_BYTE_SWAP is not set
# CONFIG_MTD_CFI_GEOMETRY is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
# CONFIG_MTD_OTP is not set
CONFIG_MTD_CFI_INTELEXT=m
CONFIG_MTD_CFI_AMDSTD=m
CONFIG_MTD_CFI_STAA=m
CONFIG_MTD_CFI_UTIL=m
CONFIG_MTD_RAM=m
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set

#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_PHYSMAP is not set
CONFIG_MTD_PHYSMAP_OF=m
CONFIG_MTD_PHYSMAP_OF_VERSATILE=y
# CONFIG_MTD_AMD76XROM is not set
CONFIG_MTD_ICHXROM=m
CONFIG_MTD_ESB2ROM=m
CONFIG_MTD_CK804XROM=m
CONFIG_MTD_SCB2_FLASH=m
CONFIG_MTD_NETtel=m
# CONFIG_MTD_L440GX is not set
CONFIG_MTD_INTEL_VR_NOR=m
# CONFIG_MTD_PLATRAM is not set

#
# Self-contained MTD device drivers
#
CONFIG_MTD_PMC551=m
# CONFIG_MTD_PMC551_BUGFIX is not set
# CONFIG_MTD_PMC551_DEBUG is not set
CONFIG_MTD_DATAFLASH=m
# CONFIG_MTD_DATAFLASH_WRITE_VERIFY is not set
# CONFIG_MTD_DATAFLASH_OTP is not set
CONFIG_MTD_M25P80=m
# CONFIG_MTD_SST25L is not set
CONFIG_MTD_SLRAM=m
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_MTDRAM is not set
CONFIG_MTD_BLOCK2MTD=m

#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOCG3 is not set
CONFIG_MTD_NAND_ECC=m
CONFIG_MTD_NAND_ECC_SMC=y
CONFIG_MTD_NAND=m
CONFIG_MTD_NAND_BCH=m
CONFIG_MTD_NAND_ECC_BCH=y
CONFIG_MTD_SM_COMMON=m
CONFIG_MTD_NAND_DENALI=m
CONFIG_MTD_NAND_DENALI_PCI=m
# CONFIG_MTD_NAND_DENALI_DT is not set
CONFIG_MTD_NAND_DENALI_SCRATCH_REG_ADDR=0xFF108018
CONFIG_MTD_NAND_GPIO=m
# CONFIG_MTD_NAND_OMAP_BCH_BUILD is not set
CONFIG_MTD_NAND_IDS=m
CONFIG_MTD_NAND_RICOH=m
CONFIG_MTD_NAND_DISKONCHIP=m
CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADVANCED=y
CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS=0
# CONFIG_MTD_NAND_DISKONCHIP_PROBE_HIGH is not set
CONFIG_MTD_NAND_DISKONCHIP_BBTWRITE=y
# CONFIG_MTD_NAND_DOCG4 is not set
CONFIG_MTD_NAND_CAFE=m
# CONFIG_MTD_NAND_CS553X is not set
CONFIG_MTD_NAND_NANDSIM=m
CONFIG_MTD_NAND_PLATFORM=m
# CONFIG_MTD_NAND_OXNAS is not set
CONFIG_MTD_NAND_HISI504=m
CONFIG_MTD_NAND_MTK=m
# CONFIG_MTD_ONENAND is not set

#
# LPDDR & LPDDR2 PCM memory drivers
#
CONFIG_MTD_LPDDR=m
CONFIG_MTD_QINFO_PROBE=m
CONFIG_MTD_SPI_NOR=m
CONFIG_MTD_MT81xx_NOR=m
CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y
CONFIG_MTD_UBI=m
CONFIG_MTD_UBI_WL_THRESHOLD=4096
CONFIG_MTD_UBI_BEB_LIMIT=20
CONFIG_MTD_UBI_FASTMAP=y
# CONFIG_MTD_UBI_GLUEBI is not set
CONFIG_MTD_UBI_BLOCK=y
CONFIG_DTC=y
CONFIG_OF=y
CONFIG_OF_UNITTEST=y
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_DYNAMIC=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_ADDRESS_PCI=y
CONFIG_OF_IRQ=y
CONFIG_OF_NET=y
CONFIG_OF_MDIO=y
CONFIG_OF_PCI=y
CONFIG_OF_PCI_IRQ=y
CONFIG_OF_RESOLVE=y
CONFIG_OF_OVERLAY=y
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
CONFIG_PNP=y
CONFIG_PNP_DEBUG_MESSAGES=y

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_OSD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_RSXX is not set
CONFIG_NVME_CORE=y
CONFIG_BLK_DEV_NVME=m
# CONFIG_BLK_DEV_NVME_SCSI is not set
CONFIG_NVME_FABRICS=y
CONFIG_NVME_FC=y
CONFIG_NVME_TARGET=m
# CONFIG_NVME_TARGET_LOOP is not set
# CONFIG_NVME_TARGET_FC is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
CONFIG_AD525X_DPOT=y
CONFIG_AD525X_DPOT_I2C=y
CONFIG_AD525X_DPOT_SPI=m
CONFIG_DUMMY_IRQ=y
CONFIG_IBM_ASM=y
# CONFIG_PHANTOM is not set
CONFIG_SGI_IOC4=m
CONFIG_TIFM_CORE=y
CONFIG_TIFM_7XX1=m
CONFIG_ICS932S401=m
# CONFIG_ENCLOSURE_SERVICES is not set
CONFIG_HP_ILO=y
# CONFIG_APDS9802ALS is not set
CONFIG_ISL29003=m
CONFIG_ISL29020=m
# CONFIG_SENSORS_TSL2550 is not set
CONFIG_SENSORS_BH1770=y
CONFIG_SENSORS_APDS990X=m
CONFIG_HMC6352=m
CONFIG_DS1682=y
CONFIG_TI_DAC7512=y
# CONFIG_VMWARE_BALLOON is not set
CONFIG_PCH_PHUB=m
CONFIG_USB_SWITCH_FSA9480=m
CONFIG_LATTICE_ECP3_CONFIG=y
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
CONFIG_EEPROM_AT24=y
# CONFIG_EEPROM_AT25 is not set
CONFIG_EEPROM_LEGACY=y
CONFIG_EEPROM_MAX6875=m
# CONFIG_EEPROM_93CX6 is not set
CONFIG_EEPROM_93XX46=y
CONFIG_CB710_CORE=m
CONFIG_CB710_DEBUG=y
CONFIG_CB710_DEBUG_ASSUMPTIONS=y

#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# CONFIG_SENSORS_LIS3_I2C is not set

#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
CONFIG_INTEL_MEI=y
CONFIG_INTEL_MEI_ME=y
CONFIG_INTEL_MEI_TXE=y
CONFIG_VMWARE_VMCI=m

#
# Intel MIC Bus Driver
#

#
# SCIF Bus Driver
#

#
# VOP Bus Driver
#

#
# Intel MIC Host Driver
#

#
# Intel MIC Card Driver
#

#
# SCIF Driver
#

#
# Intel MIC Coprocessor State Management (COSM) Drivers
#

#
# VOP Driver
#
CONFIG_ECHO=y
# CONFIG_CXL_BASE is not set
# CONFIG_CXL_AFU_DRIVER_OPS is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=y

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_TIMINGS=y
CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
# CONFIG_IDE_GD is not set
CONFIG_BLK_DEV_IDECS=m
CONFIG_BLK_DEV_DELKIN=m
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
CONFIG_BLK_DEV_IDETAPE=m
CONFIG_BLK_DEV_IDEACPI=y
CONFIG_IDE_TASK_IOCTL=y
# CONFIG_IDE_PROC_FS is not set

#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_PLATFORM=m
CONFIG_BLK_DEV_CMD640=y
# CONFIG_BLK_DEV_CMD640_ENHANCED is not set
CONFIG_BLK_DEV_IDEPNP=m
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
CONFIG_BLK_DEV_OFFBOARD=y
# CONFIG_BLK_DEV_GENERIC is not set
CONFIG_BLK_DEV_OPTI621=y
CONFIG_BLK_DEV_RZ1000=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_BLK_DEV_AEC62XX=y
CONFIG_BLK_DEV_ALI15X3=y
# CONFIG_BLK_DEV_AMD74XX is not set
CONFIG_BLK_DEV_ATIIXP=y
CONFIG_BLK_DEV_CMD64X=y
# CONFIG_BLK_DEV_TRIFLEX is not set
CONFIG_BLK_DEV_CS5520=m
# CONFIG_BLK_DEV_CS5530 is not set
CONFIG_BLK_DEV_CS5535=y
CONFIG_BLK_DEV_CS5536=m
# CONFIG_BLK_DEV_HPT366 is not set
CONFIG_BLK_DEV_JMICRON=y
CONFIG_BLK_DEV_SC1200=y
CONFIG_BLK_DEV_PIIX=y
CONFIG_BLK_DEV_IT8172=m
CONFIG_BLK_DEV_IT8213=y
# CONFIG_BLK_DEV_IT821X is not set
CONFIG_BLK_DEV_NS87415=y
CONFIG_BLK_DEV_PDC202XX_OLD=m
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
CONFIG_BLK_DEV_SIIMAGE=y
# CONFIG_BLK_DEV_SIS5513 is not set
CONFIG_BLK_DEV_SLC90E66=y
CONFIG_BLK_DEV_TRM290=y
# CONFIG_BLK_DEV_VIA82CXXX is not set
CONFIG_BLK_DEV_TC86C001=m
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_MQ_DEFAULT=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=y
CONFIG_CHR_DEV_OSST=m
# CONFIG_BLK_DEV_SR is not set
CONFIG_CHR_DEV_SG=y
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_ISCSI_ATTRS=y
CONFIG_SCSI_SAS_ATTRS=y
# CONFIG_SCSI_SAS_LIBSAS is not set
CONFIG_SCSI_SRP_ATTRS=y
# CONFIG_SCSI_LOWLEVEL is not set
# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
# CONFIG_SCSI_DH is not set
CONFIG_SCSI_OSD_INITIATOR=y
CONFIG_SCSI_OSD_ULD=m
CONFIG_SCSI_OSD_DPRINT_SENSE=1
CONFIG_SCSI_OSD_DEBUG=y
CONFIG_ATA=m
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_PMP is not set

#
# Controllers with non-SFF native interface
#
# CONFIG_SATA_AHCI is not set
CONFIG_SATA_AHCI_PLATFORM=m
# CONFIG_AHCI_CEVA is not set
CONFIG_AHCI_QORIQ=m
CONFIG_SATA_INIC162X=m
CONFIG_SATA_ACARD_AHCI=m
CONFIG_SATA_SIL24=m
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
CONFIG_PDC_ADMA=m
CONFIG_SATA_QSTOR=m
# CONFIG_SATA_SX4 is not set
# CONFIG_ATA_BMDMA is not set

#
# PIO-only SFF controllers
#
CONFIG_PATA_CMD640_PCI=m
# CONFIG_PATA_MPIIX is not set
CONFIG_PATA_NS87410=m
CONFIG_PATA_OPTI=m
CONFIG_PATA_PCMCIA=m
CONFIG_PATA_RZ1000=m

#
# Generic fallback / legacy drivers
#
CONFIG_PATA_LEGACY=m
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
CONFIG_FIREWIRE_NOSY=m
CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=m
CONFIG_NETDEVICES=y
CONFIG_MII=y
# CONFIG_NET_CORE is not set
CONFIG_SUNGEM_PHY=m
CONFIG_ARCNET=y
CONFIG_ARCNET_1201=y
CONFIG_ARCNET_1051=y
CONFIG_ARCNET_RAW=y
# CONFIG_ARCNET_CAP is not set
# CONFIG_ARCNET_COM90xx is not set
CONFIG_ARCNET_COM90xxIO=y
CONFIG_ARCNET_RIM_I=y
# CONFIG_ARCNET_COM20020 is not set

#
# CAIF transport drivers
#
# CONFIG_CAIF_TTY is not set
CONFIG_CAIF_SPI_SLAVE=m
# CONFIG_CAIF_SPI_SYNC is not set
CONFIG_CAIF_HSI=m
# CONFIG_CAIF_VIRTIO is not set

#
# Distributed Switch Architecture drivers
#
# CONFIG_NET_DSA_MV88E6060 is not set
CONFIG_NET_DSA_BCM_SF2=m
CONFIG_B53=m
# CONFIG_B53_SPI_DRIVER is not set
CONFIG_B53_MDIO_DRIVER=m
CONFIG_B53_MMAP_DRIVER=m
CONFIG_B53_SRAB_DRIVER=m
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_QCA8K is not set
CONFIG_ETHERNET=y
CONFIG_MDIO=y
CONFIG_NET_VENDOR_3COM=y
# CONFIG_PCMCIA_3C574 is not set
CONFIG_PCMCIA_3C589=m
CONFIG_VORTEX=m
CONFIG_TYPHOON=y
CONFIG_NET_VENDOR_ADAPTEC=y
CONFIG_ADAPTEC_STARFIRE=m
# CONFIG_NET_VENDOR_AGERE is not set
# CONFIG_NET_VENDOR_ALACRITECH is not set
# CONFIG_NET_VENDOR_ALTEON is not set
CONFIG_ALTERA_TSE=y
CONFIG_NET_VENDOR_AMAZON=y
CONFIG_ENA_ETHERNET=y
# CONFIG_NET_VENDOR_AMD is not set
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ATHEROS=y
# CONFIG_ATL2 is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
CONFIG_ATL1C=m
CONFIG_ALX=m
# CONFIG_NET_VENDOR_AURORA is not set
# CONFIG_NET_CADENCE is not set
CONFIG_NET_VENDOR_BROADCOM=y
CONFIG_B44=m
CONFIG_B44_PCI_AUTOSELECT=y
CONFIG_B44_PCICORE_AUTOSELECT=y
CONFIG_B44_PCI=y
# CONFIG_BCMGENET is not set
CONFIG_BNX2=y
CONFIG_CNIC=y
CONFIG_TIGON3=m
CONFIG_BNX2X=m
CONFIG_SYSTEMPORT=y
# CONFIG_BNXT is not set
CONFIG_NET_VENDOR_BROCADE=y
# CONFIG_BNA is not set
CONFIG_NET_VENDOR_CAVIUM=y
CONFIG_NET_VENDOR_CHELSIO=y
CONFIG_CHELSIO_T1=y
# CONFIG_CHELSIO_T1_1G is not set
CONFIG_CHELSIO_T3=y
CONFIG_CHELSIO_T4=m
CONFIG_CHELSIO_T4_DCB=y
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CISCO=y
CONFIG_ENIC=y
CONFIG_CX_ECAT=y
CONFIG_DNET=y
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EZCHIP is not set
CONFIG_NET_VENDOR_EXAR=y
CONFIG_S2IO=y
# CONFIG_VXGE is not set
CONFIG_NET_VENDOR_FUJITSU=y
CONFIG_PCMCIA_FMVJ18X=m
# CONFIG_NET_VENDOR_HP is not set
CONFIG_NET_VENDOR_INTEL=y
CONFIG_E100=y
CONFIG_E1000=y
CONFIG_E1000E=y
CONFIG_E1000E_HWTS=y
CONFIG_IGB=m
CONFIG_IGB_HWMON=y
CONFIG_IGBVF=m
CONFIG_IXGB=y
CONFIG_IXGBE=m
CONFIG_IXGBE_HWMON=y
CONFIG_IXGBE_DCB=y
CONFIG_IXGBEVF=y
CONFIG_I40E=y
CONFIG_I40E_DCB=y
CONFIG_I40EVF=y
CONFIG_FM10K=y
CONFIG_NET_VENDOR_I825XX=y
CONFIG_JME=y
CONFIG_NET_VENDOR_MARVELL=y
CONFIG_MVMDIO=m
# CONFIG_MVNETA_BM is not set
CONFIG_SKGE=m
CONFIG_SKGE_DEBUG=y
# CONFIG_SKGE_GENESIS is not set
CONFIG_SKY2=m
# CONFIG_SKY2_DEBUG is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
CONFIG_NET_VENDOR_MICROCHIP=y
CONFIG_ENC28J60=y
CONFIG_ENC28J60_WRITEVERIFY=y
# CONFIG_ENCX24J600 is not set
# CONFIG_NET_VENDOR_MYRI is not set
CONFIG_FEALNX=y
CONFIG_NET_VENDOR_NATSEMI=y
CONFIG_NATSEMI=y
# CONFIG_NS83820 is not set
CONFIG_NET_VENDOR_NETRONOME=y
# CONFIG_NFP_NETVF is not set
CONFIG_NET_VENDOR_8390=y
CONFIG_PCMCIA_AXNET=m
CONFIG_NE2K_PCI=y
CONFIG_PCMCIA_PCNET=m
CONFIG_NET_VENDOR_NVIDIA=y
CONFIG_FORCEDETH=m
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_PACKET_ENGINE is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_8139CP is not set
CONFIG_8139TOO=m
# CONFIG_8139TOO_PIO is not set
CONFIG_8139TOO_TUNE_TWISTER=y
# CONFIG_8139TOO_8129 is not set
CONFIG_8139_OLD_RX_RESET=y
# CONFIG_R8169 is not set
# CONFIG_NET_VENDOR_RENESAS is not set
CONFIG_NET_VENDOR_RDC=y
CONFIG_R6040=m
# CONFIG_NET_VENDOR_ROCKER is not set
CONFIG_NET_VENDOR_SAMSUNG=y
CONFIG_SXGBE_ETH=m
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SILAN=y
CONFIG_SC92031=y
# CONFIG_NET_VENDOR_SIS is not set
CONFIG_NET_VENDOR_SOLARFLARE=y
# CONFIG_SFC is not set
# CONFIG_SFC_FALCON is not set
CONFIG_NET_VENDOR_SMSC=y
CONFIG_PCMCIA_SMC91C92=m
CONFIG_EPIC100=m
CONFIG_SMSC911X=y
# CONFIG_SMSC911X_ARCH_HOOKS is not set
CONFIG_SMSC9420=m
# CONFIG_NET_VENDOR_STMICRO is not set
CONFIG_NET_VENDOR_SUN=y
CONFIG_HAPPYMEAL=y
CONFIG_SUNGEM=m
CONFIG_CASSINI=m
CONFIG_NIU=m
CONFIG_NET_VENDOR_SYNOPSYS=y
# CONFIG_SYNOPSYS_DWC_ETH_QOS is not set
CONFIG_NET_VENDOR_TEHUTI=y
CONFIG_TEHUTI=y
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_NET_VENDOR_XIRCOM is not set
CONFIG_FDDI=m
# CONFIG_DEFXX is not set
CONFIG_SKFP=m
CONFIG_HIPPI=y
# CONFIG_ROADRUNNER is not set
CONFIG_NET_SB1000=m
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
# CONFIG_LED_TRIGGER_PHY is not set

#
# MDIO bus device drivers
#
CONFIG_MDIO_BCM_UNIMAC=m
CONFIG_MDIO_BITBANG=m
CONFIG_MDIO_BUS_MUX=m
CONFIG_MDIO_BUS_MUX_GPIO=m
# CONFIG_MDIO_BUS_MUX_MMIOREG is not set
# CONFIG_MDIO_GPIO is not set
# CONFIG_MDIO_HISI_FEMAC is not set

#
# MII PHY device drivers
#
CONFIG_AMD_PHY=m
CONFIG_AQUANTIA_PHY=y
CONFIG_AT803X_PHY=y
CONFIG_BCM7XXX_PHY=y
# CONFIG_BCM87XX_PHY is not set
CONFIG_BCM_NET_PHYLIB=y
CONFIG_BROADCOM_PHY=m
CONFIG_CICADA_PHY=y
CONFIG_DAVICOM_PHY=m
CONFIG_DP83848_PHY=m
CONFIG_DP83867_PHY=m
CONFIG_FIXED_PHY=y
CONFIG_ICPLUS_PHY=y
CONFIG_INTEL_XWAY_PHY=y
CONFIG_LSI_ET1011C_PHY=m
# CONFIG_LXT_PHY is not set
CONFIG_MARVELL_PHY=m
# CONFIG_MESON_GXL_PHY is not set
CONFIG_MICREL_PHY=y
CONFIG_MICROCHIP_PHY=m
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_NATIONAL_PHY is not set
CONFIG_QSEMI_PHY=m
# CONFIG_REALTEK_PHY is not set
CONFIG_SMSC_PHY=m
CONFIG_STE10XP=y
CONFIG_TERANETICS_PHY=y
CONFIG_VITESSE_PHY=y
CONFIG_XILINX_GMII2RGMII=y
CONFIG_MICREL_KS8995MA=y
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
# CONFIG_PPP_DEFLATE is not set
# CONFIG_PPP_FILTER is not set
CONFIG_PPP_MPPE=m
# CONFIG_PPP_MULTILINK is not set
CONFIG_PPPOE=m
CONFIG_PPTP=m
CONFIG_PPPOL2TP=m
# CONFIG_PPP_ASYNC is not set
# CONFIG_PPP_SYNC_TTY is not set
# CONFIG_SLIP is not set
CONFIG_SLHC=m
CONFIG_USB_NET_DRIVERS=m
CONFIG_USB_CATC=m
CONFIG_USB_KAWETH=m
# CONFIG_USB_PEGASUS is not set
CONFIG_USB_RTL8150=m
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_LAN78XX is not set
CONFIG_USB_USBNET=m
CONFIG_USB_NET_AX8817X=m
# CONFIG_USB_NET_AX88179_178A is not set
CONFIG_USB_NET_CDCETHER=m
CONFIG_USB_NET_CDC_EEM=m
CONFIG_USB_NET_CDC_NCM=m
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
CONFIG_USB_NET_DM9601=m
CONFIG_USB_NET_SR9700=m
# CONFIG_USB_NET_SR9800 is not set
CONFIG_USB_NET_SMSC75XX=m
CONFIG_USB_NET_SMSC95XX=m
# CONFIG_USB_NET_GL620A is not set
CONFIG_USB_NET_NET1080=m
# CONFIG_USB_NET_PLUSB is not set
# CONFIG_USB_NET_MCS7830 is not set
CONFIG_USB_NET_RNDIS_HOST=m
# CONFIG_USB_NET_CDC_SUBSET is not set
# CONFIG_USB_NET_ZAURUS is not set
# CONFIG_USB_NET_CX82310_ETH is not set
# CONFIG_USB_NET_KALMIA is not set
CONFIG_USB_NET_QMI_WWAN=m
# CONFIG_USB_HSO is not set
# CONFIG_USB_NET_INT51X1 is not set
# CONFIG_USB_CDC_PHONET is not set
CONFIG_USB_IPHETH=m
# CONFIG_USB_SIERRA_NET is not set
CONFIG_USB_VL600=m
CONFIG_USB_NET_CH9200=m
CONFIG_WLAN=y
CONFIG_WLAN_VENDOR_ADMTEK=y
# CONFIG_WLAN_VENDOR_ATH is not set
CONFIG_WLAN_VENDOR_ATMEL=y
CONFIG_ATMEL=m
CONFIG_PCI_ATMEL=m
CONFIG_PCMCIA_ATMEL=m
CONFIG_WLAN_VENDOR_BROADCOM=y
CONFIG_BRCMUTIL=m
CONFIG_BRCMFMAC=m
CONFIG_BRCMFMAC_PROTO_BCDC=y
CONFIG_BRCMFMAC_SDIO=y
# CONFIG_BRCMFMAC_USB is not set
# CONFIG_BRCMFMAC_PCIE is not set
CONFIG_BRCM_TRACING=y
# CONFIG_BRCMDBG is not set
# CONFIG_WLAN_VENDOR_CISCO is not set
CONFIG_WLAN_VENDOR_INTEL=y
CONFIG_IPW2100=m
# CONFIG_IPW2100_MONITOR is not set
# CONFIG_IPW2100_DEBUG is not set
CONFIG_IPW2200=m
# CONFIG_IPW2200_MONITOR is not set
# CONFIG_IPW2200_QOS is not set
CONFIG_IPW2200_DEBUG=y
CONFIG_LIBIPW=m
# CONFIG_LIBIPW_DEBUG is not set
CONFIG_WLAN_VENDOR_INTERSIL=y
# CONFIG_HOSTAP is not set
CONFIG_HERMES=m
CONFIG_HERMES_PRISM=y
CONFIG_HERMES_CACHE_FW_ON_INIT=y
CONFIG_PLX_HERMES=m
CONFIG_TMD_HERMES=m
# CONFIG_NORTEL_HERMES is not set
# CONFIG_PCI_HERMES is not set
CONFIG_PCMCIA_HERMES=m
CONFIG_PCMCIA_SPECTRUM=m
CONFIG_ORINOCO_USB=m
CONFIG_PRISM54=y
# CONFIG_WLAN_VENDOR_MARVELL is not set
# CONFIG_WLAN_VENDOR_MEDIATEK is not set
# CONFIG_WLAN_VENDOR_RALINK is not set
# CONFIG_WLAN_VENDOR_REALTEK is not set
# CONFIG_WLAN_VENDOR_RSI is not set
CONFIG_WLAN_VENDOR_ST=y
CONFIG_WLAN_VENDOR_TI=y
CONFIG_WLAN_VENDOR_ZYDAS=y
CONFIG_USB_ZD1201=m
CONFIG_PCMCIA_RAYCS=m
# CONFIG_PCMCIA_WL3501 is not set
CONFIG_USB_NET_RNDIS_WLAN=m

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_IEEE802154_DRIVERS is not set
CONFIG_VMXNET3=y
CONFIG_FUJITSU_ES=y
# CONFIG_HYPERV_NET is not set
CONFIG_ISDN=y
CONFIG_ISDN_I4L=y
# CONFIG_ISDN_PPP is not set
# CONFIG_ISDN_AUDIO is not set

#
# ISDN feature submodules
#
CONFIG_ISDN_DRV_LOOP=m
# CONFIG_ISDN_DIVERSION is not set

#
# ISDN4Linux hardware drivers
#

#
# Passive cards
#
# CONFIG_ISDN_DRV_HISAX is not set
# CONFIG_ISDN_CAPI is not set
CONFIG_ISDN_DRV_GIGASET=m
CONFIG_GIGASET_I4L=y
# CONFIG_GIGASET_DUMMYLL is not set
CONFIG_GIGASET_BASE=m
CONFIG_GIGASET_M105=m
CONFIG_GIGASET_M101=m
CONFIG_GIGASET_DEBUG=y
# CONFIG_HYSDN is not set
CONFIG_MISDN=y
# CONFIG_MISDN_DSP is not set
# CONFIG_MISDN_L1OIP is not set

#
# mISDN hardware drivers
#
CONFIG_MISDN_HFCPCI=y
# CONFIG_MISDN_HFCMULTI is not set
# CONFIG_MISDN_HFCUSB is not set
CONFIG_MISDN_AVMFRITZ=y
CONFIG_MISDN_SPEEDFAX=y
# CONFIG_MISDN_INFINEON is not set
CONFIG_MISDN_W6692=y
CONFIG_MISDN_NETJET=y
CONFIG_MISDN_IPAC=y
CONFIG_MISDN_ISAR=y
CONFIG_ISDN_HDLC=y
# CONFIG_NVM is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=m
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_POLLDEV=y
CONFIG_INPUT_SPARSEKMAP=y
CONFIG_INPUT_MATRIXKMAP=m

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=y
CONFIG_INPUT_EVDEV=m
CONFIG_INPUT_EVBUG=y

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADC is not set
# CONFIG_KEYBOARD_ADP5520 is not set
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_STMPE is not set
# CONFIG_KEYBOARD_OMAP4 is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_CROS_EC is not set
# CONFIG_KEYBOARD_CAP11XX is not set
# CONFIG_KEYBOARD_BCM is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
CONFIG_INPUT_TABLET=y
CONFIG_TABLET_USB_ACECAD=y
CONFIG_TABLET_USB_AIPTEK=y
# CONFIG_TABLET_USB_GTCO is not set
CONFIG_TABLET_USB_HANWANG=y
CONFIG_TABLET_USB_KBTAB=y
CONFIG_TABLET_USB_PEGASUS=y
CONFIG_TABLET_SERIAL_WACOM4=m
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_PROPERTIES=y
CONFIG_TOUCHSCREEN_88PM860X=y
CONFIG_TOUCHSCREEN_ADS7846=m
CONFIG_TOUCHSCREEN_AD7877=y
# CONFIG_TOUCHSCREEN_AD7879 is not set
# CONFIG_TOUCHSCREEN_AR1021_I2C is not set
# CONFIG_TOUCHSCREEN_ATMEL_MXT is not set
# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
# CONFIG_TOUCHSCREEN_BU21013 is not set
# CONFIG_TOUCHSCREEN_CHIPONE_ICN8318 is not set
# CONFIG_TOUCHSCREEN_CY8CTMG110 is not set
# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set
CONFIG_TOUCHSCREEN_CYTTSP4_CORE=y
CONFIG_TOUCHSCREEN_CYTTSP4_I2C=m
# CONFIG_TOUCHSCREEN_CYTTSP4_SPI is not set
CONFIG_TOUCHSCREEN_DA9052=y
CONFIG_TOUCHSCREEN_DYNAPRO=y
CONFIG_TOUCHSCREEN_HAMPSHIRE=m
# CONFIG_TOUCHSCREEN_EETI is not set
# CONFIG_TOUCHSCREEN_EGALAX is not set
CONFIG_TOUCHSCREEN_EGALAX_SERIAL=m
CONFIG_TOUCHSCREEN_FUJITSU=y
CONFIG_TOUCHSCREEN_GOODIX=y
CONFIG_TOUCHSCREEN_ILI210X=y
CONFIG_TOUCHSCREEN_GUNZE=y
# CONFIG_TOUCHSCREEN_EKTF2127 is not set
CONFIG_TOUCHSCREEN_ELAN=m
CONFIG_TOUCHSCREEN_ELO=m
CONFIG_TOUCHSCREEN_WACOM_W8001=y
# CONFIG_TOUCHSCREEN_WACOM_I2C is not set
CONFIG_TOUCHSCREEN_MAX11801=m
CONFIG_TOUCHSCREEN_MCS5000=m
# CONFIG_TOUCHSCREEN_MMS114 is not set
CONFIG_TOUCHSCREEN_MELFAS_MIP4=y
CONFIG_TOUCHSCREEN_MTOUCH=y
CONFIG_TOUCHSCREEN_IMX6UL_TSC=y
CONFIG_TOUCHSCREEN_INEXIO=y
# CONFIG_TOUCHSCREEN_MK712 is not set
# CONFIG_TOUCHSCREEN_PENMOUNT is not set
CONFIG_TOUCHSCREEN_EDT_FT5X06=m
# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
CONFIG_TOUCHSCREEN_UCB1400=m
# CONFIG_TOUCHSCREEN_PIXCIR is not set
CONFIG_TOUCHSCREEN_WDT87XX_I2C=y
# CONFIG_TOUCHSCREEN_WM97XX is not set
# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
CONFIG_TOUCHSCREEN_MC13783=y
CONFIG_TOUCHSCREEN_TOUCHIT213=m
# CONFIG_TOUCHSCREEN_TSC_SERIO is not set
CONFIG_TOUCHSCREEN_TSC200X_CORE=y
CONFIG_TOUCHSCREEN_TSC2004=y
CONFIG_TOUCHSCREEN_TSC2005=y
CONFIG_TOUCHSCREEN_TSC2007=y
# CONFIG_TOUCHSCREEN_PCAP is not set
CONFIG_TOUCHSCREEN_RM_TS=y
# CONFIG_TOUCHSCREEN_SILEAD is not set
# CONFIG_TOUCHSCREEN_SIS_I2C is not set
CONFIG_TOUCHSCREEN_ST1232=m
# CONFIG_TOUCHSCREEN_STMPE is not set
# CONFIG_TOUCHSCREEN_SUR40 is not set
# CONFIG_TOUCHSCREEN_SURFACE3_SPI is not set
CONFIG_TOUCHSCREEN_SX8654=m
CONFIG_TOUCHSCREEN_TPS6507X=m
# CONFIG_TOUCHSCREEN_ZFORCE is not set
CONFIG_TOUCHSCREEN_ROHM_BU21023=m
CONFIG_INPUT_MISC=y
CONFIG_INPUT_88PM860X_ONKEY=m
CONFIG_INPUT_88PM80X_ONKEY=m
# CONFIG_INPUT_AD714X is not set
CONFIG_INPUT_ATMEL_CAPTOUCH=m
CONFIG_INPUT_BMA150=y
# CONFIG_INPUT_E3X0_BUTTON is not set
CONFIG_INPUT_PCSPKR=y
CONFIG_INPUT_MAX8997_HAPTIC=y
# CONFIG_INPUT_MC13783_PWRBUTTON is not set
CONFIG_INPUT_MMA8450=y
# CONFIG_INPUT_MPU3050 is not set
CONFIG_INPUT_APANEL=y
CONFIG_INPUT_GP2A=y
CONFIG_INPUT_GPIO_BEEPER=m
CONFIG_INPUT_GPIO_TILT_POLLED=m
CONFIG_INPUT_GPIO_DECODER=m
CONFIG_INPUT_WISTRON_BTNS=y
# CONFIG_INPUT_ATLAS_BTNS is not set
CONFIG_INPUT_ATI_REMOTE2=y
CONFIG_INPUT_KEYSPAN_REMOTE=m
CONFIG_INPUT_KXTJ9=m
CONFIG_INPUT_KXTJ9_POLLED_MODE=y
# CONFIG_INPUT_POWERMATE is not set
CONFIG_INPUT_YEALINK=m
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_REGULATOR_HAPTIC is not set
# CONFIG_INPUT_TPS65218_PWRBUTTON is not set
CONFIG_INPUT_AXP20X_PEK=y
CONFIG_INPUT_TWL6040_VIBRA=y
# CONFIG_INPUT_UINPUT is not set
CONFIG_INPUT_PALMAS_PWRBUTTON=y
CONFIG_INPUT_PCF50633_PMU=m
# CONFIG_INPUT_PCF8574 is not set
CONFIG_INPUT_PWM_BEEPER=y
# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set
# CONFIG_INPUT_DA9052_ONKEY is not set
# CONFIG_INPUT_DA9063_ONKEY is not set
CONFIG_INPUT_PCAP=y
CONFIG_INPUT_ADXL34X=m
CONFIG_INPUT_ADXL34X_I2C=m
# CONFIG_INPUT_ADXL34X_SPI is not set
# CONFIG_INPUT_IMS_PCU is not set
CONFIG_INPUT_CMA3000=m
CONFIG_INPUT_CMA3000_I2C=m
# CONFIG_INPUT_IDEAPAD_SLIDEBAR is not set
# CONFIG_INPUT_DRV260X_HAPTICS is not set
CONFIG_INPUT_DRV2665_HAPTICS=y
CONFIG_INPUT_DRV2667_HAPTICS=y
CONFIG_RMI4_CORE=y
CONFIG_RMI4_I2C=y
# CONFIG_RMI4_SPI is not set
# CONFIG_RMI4_SMB is not set
CONFIG_RMI4_F03=y
# CONFIG_RMI4_F11 is not set
# CONFIG_RMI4_F12 is not set
CONFIG_RMI4_F30=y
# CONFIG_RMI4_F34 is not set
# CONFIG_RMI4_F54 is not set
CONFIG_RMI4_F55=y

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=m
# CONFIG_SERIO_CT82C710 is not set
CONFIG_SERIO_PCIPS2=y
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
CONFIG_SERIO_ALTERA_PS2=y
CONFIG_SERIO_PS2MULT=m
# CONFIG_SERIO_ARC_PS2 is not set
CONFIG_SERIO_APBPS2=m
CONFIG_HYPERV_KEYBOARD=m
CONFIG_USERIO=y
CONFIG_GAMEPORT=y
CONFIG_GAMEPORT_NS558=m
# CONFIG_GAMEPORT_L4 is not set
# CONFIG_GAMEPORT_EMU10K1 is not set
CONFIG_GAMEPORT_FM801=m

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
CONFIG_DEVMEM=y
# CONFIG_DEVKMEM is not set

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_FINTEK=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_CS=m
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
CONFIG_SERIAL_8250_RSA=y
# CONFIG_SERIAL_8250_FSL is not set
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_RT288X is not set
CONFIG_SERIAL_8250_LPSS=y
CONFIG_SERIAL_8250_MID=y
# CONFIG_SERIAL_8250_MOXA is not set
CONFIG_SERIAL_OF_PLATFORM=y

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MAX3100 is not set
CONFIG_SERIAL_MAX310X=m
CONFIG_SERIAL_UARTLITE=m
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_SERIAL_SCCNXP=m
# CONFIG_SERIAL_SC16IS7XX is not set
CONFIG_SERIAL_TIMBERDALE=y
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
CONFIG_SERIAL_ALTERA_UART=m
CONFIG_SERIAL_ALTERA_UART_MAXPORTS=4
CONFIG_SERIAL_ALTERA_UART_BAUDRATE=115200
CONFIG_SERIAL_IFX6X60=y
CONFIG_SERIAL_PCH_UART=m
CONFIG_SERIAL_XILINX_PS_UART=y
CONFIG_SERIAL_XILINX_PS_UART_CONSOLE=y
# CONFIG_SERIAL_ARC is not set
CONFIG_SERIAL_RP2=y
CONFIG_SERIAL_RP2_NR_UARTS=32
CONFIG_SERIAL_FSL_LPUART=m
CONFIG_SERIAL_CONEXANT_DIGICOLOR=m
# CONFIG_SERIAL_MEN_Z135 is not set
CONFIG_HVC_DRIVER=y
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
CONFIG_NVRAM=m
CONFIG_R3964=m
CONFIG_APPLICOM=m
CONFIG_SONYPI=y

#
# PCMCIA character devices
#
CONFIG_SYNCLINK_CS=m
CONFIG_CARDMAN_4000=m
# CONFIG_CARDMAN_4040 is not set
CONFIG_SCR24X=m
# CONFIG_IPWIRELESS is not set
CONFIG_MWAVE=y
CONFIG_PC8736x_GPIO=m
CONFIG_NSC_GPIO=y
CONFIG_RAW_DRIVER=m
CONFIG_MAX_RAW_DEVS=256
# CONFIG_HPET is not set
CONFIG_HANGCHECK_TIMER=y
CONFIG_TCG_TPM=m
CONFIG_TCG_TIS_CORE=m
CONFIG_TCG_TIS=m
CONFIG_TCG_TIS_SPI=m
# CONFIG_TCG_TIS_I2C_ATMEL is not set
CONFIG_TCG_TIS_I2C_INFINEON=m
CONFIG_TCG_TIS_I2C_NUVOTON=m
CONFIG_TCG_NSC=m
CONFIG_TCG_ATMEL=m
# CONFIG_TCG_INFINEON is not set
CONFIG_TCG_CRB=m
# CONFIG_TCG_VTPM_PROXY is not set
CONFIG_TCG_TIS_ST33ZP24=m
CONFIG_TCG_TIS_ST33ZP24_I2C=m
CONFIG_TCG_TIS_ST33ZP24_SPI=m
CONFIG_TELCLOCK=y
CONFIG_DEVPORT=y
CONFIG_XILLYBUS=m
# CONFIG_XILLYBUS_PCIE is not set
CONFIG_XILLYBUS_OF=m

#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_MUX=y

#
# Multiplexer I2C Chip support
#
CONFIG_I2C_ARB_GPIO_CHALLENGE=m
CONFIG_I2C_MUX_GPIO=m
# CONFIG_I2C_MUX_PCA9541 is not set
CONFIG_I2C_MUX_PCA954x=y
CONFIG_I2C_MUX_REG=m
# CONFIG_I2C_MUX_MLXCPLD is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=y
CONFIG_I2C_ALGOBIT=y

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
CONFIG_I2C_ALI1535=m
# CONFIG_I2C_ALI1563 is not set
CONFIG_I2C_ALI15X3=y
CONFIG_I2C_AMD756=m
CONFIG_I2C_AMD756_S4882=m
CONFIG_I2C_AMD8111=m
CONFIG_I2C_I801=m
# CONFIG_I2C_ISCH is not set
CONFIG_I2C_ISMT=y
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
CONFIG_I2C_SIS5595=y
CONFIG_I2C_SIS630=m
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# ACPI drivers
#
CONFIG_I2C_SCMI=m

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
CONFIG_I2C_DESIGNWARE_CORE=m
# CONFIG_I2C_DESIGNWARE_PLATFORM is not set
CONFIG_I2C_DESIGNWARE_PCI=m
CONFIG_I2C_EG20T=m
# CONFIG_I2C_EMEV2 is not set
CONFIG_I2C_GPIO=m
CONFIG_I2C_KEMPLD=m
CONFIG_I2C_OCORES=y
# CONFIG_I2C_PCA_PLATFORM is not set
CONFIG_I2C_PXA=y
CONFIG_I2C_PXA_PCI=y
# CONFIG_I2C_RK3X is not set
CONFIG_I2C_SIMTEC=m
CONFIG_I2C_XILINX=y

#
# External I2C/SMBus adapter drivers
#
CONFIG_I2C_DIOLAN_U2C=m
CONFIG_I2C_DLN2=y
CONFIG_I2C_PARPORT_LIGHT=y
CONFIG_I2C_ROBOTFUZZ_OSIF=m
# CONFIG_I2C_TAOS_EVM is not set
CONFIG_I2C_TINY_USB=m
# CONFIG_I2C_VIPERBOARD is not set

#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_CROS_EC_TUNNEL=m
CONFIG_SCx200_ACB=m
CONFIG_I2C_STUB=m
CONFIG_I2C_SLAVE=y
CONFIG_I2C_SLAVE_EEPROM=m
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
CONFIG_SPI=y
CONFIG_SPI_DEBUG=y
CONFIG_SPI_MASTER=y

#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_AXI_SPI_ENGINE is not set
CONFIG_SPI_BITBANG=y
CONFIG_SPI_CADENCE=y
CONFIG_SPI_DESIGNWARE=y
# CONFIG_SPI_DW_PCI is not set
CONFIG_SPI_DW_MMIO=y
# CONFIG_SPI_DLN2 is not set
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_FSL_SPI is not set
CONFIG_SPI_OC_TINY=y
# CONFIG_SPI_PXA2XX is not set
# CONFIG_SPI_PXA2XX_PCI is not set
# CONFIG_SPI_ROCKCHIP is not set
CONFIG_SPI_SC18IS602=y
# CONFIG_SPI_TOPCLIFF_PCH is not set
CONFIG_SPI_XCOMM=y
CONFIG_SPI_XILINX=y
# CONFIG_SPI_ZYNQMP_GQSPI is not set

#
# SPI Protocol Masters
#
CONFIG_SPI_SPIDEV=m
CONFIG_SPI_LOOPBACK_TEST=m
# CONFIG_SPI_TLE62X0 is not set
CONFIG_SPMI=y
# CONFIG_HSI is not set

#
# PPS support
#
CONFIG_PPS=m
# CONFIG_PPS_DEBUG is not set
CONFIG_NTP_PPS=y

#
# PPS clients support
#
CONFIG_PPS_CLIENT_KTIMER=m
CONFIG_PPS_CLIENT_LDISC=m
CONFIG_PPS_CLIENT_GPIO=m

#
# PPS generators support
#

#
# PTP clock support
#
# CONFIG_PTP_1588_CLOCK is not set
# CONFIG_PTP_1588_CLOCK_PCH is not set
CONFIG_GPIOLIB=y
CONFIG_OF_GPIO=y
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
CONFIG_DEBUG_GPIO=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_GENERIC=y
CONFIG_GPIO_MAX730X=m

#
# Memory mapped GPIO drivers
#
CONFIG_GPIO_74XX_MMIO=y
# CONFIG_GPIO_ALTERA is not set
CONFIG_GPIO_AMDPT=m
CONFIG_GPIO_AXP209=y
CONFIG_GPIO_DWAPB=y
# CONFIG_GPIO_GENERIC_PLATFORM is not set
CONFIG_GPIO_GRGPIO=m
CONFIG_GPIO_ICH=m
CONFIG_GPIO_LYNXPOINT=y
CONFIG_GPIO_MENZ127=m
CONFIG_GPIO_MOCKUP=m
CONFIG_GPIO_SYSCON=y
CONFIG_GPIO_VX855=y
# CONFIG_GPIO_XILINX is not set

#
# Port-mapped I/O GPIO drivers
#
# CONFIG_GPIO_F7188X is not set
CONFIG_GPIO_IT87=m
# CONFIG_GPIO_SCH is not set
# CONFIG_GPIO_SCH311X is not set

#
# I2C GPIO expanders
#
CONFIG_GPIO_ADP5588=y
# CONFIG_GPIO_ADP5588_IRQ is not set
CONFIG_GPIO_ADNP=y
CONFIG_GPIO_MAX7300=m
CONFIG_GPIO_MAX732X=y
CONFIG_GPIO_MAX732X_IRQ=y
CONFIG_GPIO_PCA953X=m
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_TPIC2810 is not set

#
# MFD GPIO expanders
#
CONFIG_GPIO_ADP5520=m
CONFIG_GPIO_ARIZONA=y
CONFIG_GPIO_DA9052=y
CONFIG_GPIO_DLN2=y
CONFIG_GPIO_KEMPLD=m
CONFIG_GPIO_LP3943=m
CONFIG_GPIO_MAX77620=y
CONFIG_GPIO_PALMAS=y
# CONFIG_GPIO_STMPE is not set
CONFIG_GPIO_TIMBERDALE=y
# CONFIG_GPIO_TPS65218 is not set
CONFIG_GPIO_TPS6586X=y
CONFIG_GPIO_TPS65910=y
CONFIG_GPIO_TPS65912=m
CONFIG_GPIO_TWL6040=y
CONFIG_GPIO_UCB1400=m
# CONFIG_GPIO_WM8350 is not set
# CONFIG_GPIO_WM8994 is not set

#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_ML_IOH is not set
CONFIG_GPIO_PCH=y
# CONFIG_GPIO_RDC321X is not set
CONFIG_GPIO_SODAVILLE=y

#
# SPI GPIO expanders
#
CONFIG_GPIO_74X164=y
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
CONFIG_GPIO_PISOSR=y

#
# SPI or I2C GPIO expanders
#
CONFIG_GPIO_MCP23S08=y

#
# USB GPIO expanders
#
# CONFIG_GPIO_VIPERBOARD is not set
CONFIG_W1=m
CONFIG_W1_CON=y

#
# 1-wire Bus Masters
#
CONFIG_W1_MASTER_MATROX=m
# CONFIG_W1_MASTER_DS2490 is not set
CONFIG_W1_MASTER_DS2482=m
CONFIG_W1_MASTER_DS1WM=m
CONFIG_W1_MASTER_GPIO=m

#
# 1-wire Slaves
#
CONFIG_W1_SLAVE_THERM=m
CONFIG_W1_SLAVE_SMEM=m
# CONFIG_W1_SLAVE_DS2408 is not set
CONFIG_W1_SLAVE_DS2413=m
CONFIG_W1_SLAVE_DS2406=m
CONFIG_W1_SLAVE_DS2423=m
CONFIG_W1_SLAVE_DS2431=m
CONFIG_W1_SLAVE_DS2433=m
CONFIG_W1_SLAVE_DS2433_CRC=y
# CONFIG_W1_SLAVE_DS2760 is not set
CONFIG_W1_SLAVE_DS2780=m
CONFIG_W1_SLAVE_DS2781=m
CONFIG_W1_SLAVE_DS28E04=m
CONFIG_W1_SLAVE_BQ27000=m
CONFIG_POWER_AVS=y
CONFIG_POWER_RESET=y
# CONFIG_POWER_RESET_GPIO is not set
# CONFIG_POWER_RESET_GPIO_RESTART is not set
CONFIG_POWER_RESET_LTC2952=y
# CONFIG_POWER_RESET_RESTART is not set
# CONFIG_POWER_RESET_SYSCON is not set
# CONFIG_POWER_RESET_SYSCON_POWEROFF is not set
CONFIG_REBOOT_MODE=m
CONFIG_SYSCON_REBOOT_MODE=m
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
CONFIG_PDA_POWER=m
CONFIG_GENERIC_ADC_BATTERY=m
CONFIG_WM8350_POWER=m
CONFIG_TEST_POWER=m
CONFIG_BATTERY_88PM860X=y
# CONFIG_BATTERY_ACT8945A is not set
CONFIG_BATTERY_DS2780=m
CONFIG_BATTERY_DS2781=m
CONFIG_BATTERY_DS2782=m
CONFIG_BATTERY_SBS=m
# CONFIG_BATTERY_BQ27XXX is not set
CONFIG_BATTERY_DA9052=m
CONFIG_BATTERY_DA9150=m
CONFIG_AXP288_CHARGER=m
# CONFIG_AXP288_FUEL_GAUGE is not set
CONFIG_BATTERY_MAX17040=m
CONFIG_BATTERY_MAX17042=m
CONFIG_CHARGER_88PM860X=y
CONFIG_CHARGER_PCF50633=m
CONFIG_CHARGER_ISP1704=y
CONFIG_CHARGER_MAX8903=y
CONFIG_CHARGER_LP8727=y
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_MANAGER is not set
CONFIG_CHARGER_MAX14577=m
# CONFIG_CHARGER_MAX8998 is not set
CONFIG_CHARGER_BQ2415X=y
# CONFIG_CHARGER_BQ24190 is not set
CONFIG_CHARGER_BQ24257=m
# CONFIG_CHARGER_BQ24735 is not set
CONFIG_CHARGER_BQ25890=y
# CONFIG_CHARGER_SMB347 is not set
CONFIG_CHARGER_TPS65090=y
CONFIG_BATTERY_GAUGE_LTC2941=m
CONFIG_BATTERY_RT5033=y
CONFIG_CHARGER_RT9455=y
CONFIG_AXP20X_POWER=m
CONFIG_HWMON=y
CONFIG_HWMON_VID=y
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_ABITUGURU3 is not set
CONFIG_SENSORS_AD7314=m
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
CONFIG_SENSORS_ADM1021=m
CONFIG_SENSORS_ADM1025=y
CONFIG_SENSORS_ADM1026=m
CONFIG_SENSORS_ADM1029=y
CONFIG_SENSORS_ADM1031=y
# CONFIG_SENSORS_ADM9240 is not set
CONFIG_SENSORS_ADT7X10=m
CONFIG_SENSORS_ADT7310=m
CONFIG_SENSORS_ADT7410=m
CONFIG_SENSORS_ADT7411=y
# CONFIG_SENSORS_ADT7462 is not set
CONFIG_SENSORS_ADT7470=m
# CONFIG_SENSORS_ADT7475 is not set
CONFIG_SENSORS_ASC7621=y
# CONFIG_SENSORS_K8TEMP is not set
CONFIG_SENSORS_K10TEMP=y
CONFIG_SENSORS_FAM15H_POWER=m
# CONFIG_SENSORS_APPLESMC is not set
CONFIG_SENSORS_ASB100=y
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
CONFIG_SENSORS_DELL_SMM=y
CONFIG_SENSORS_DA9052_ADC=y
CONFIG_SENSORS_I5K_AMB=m
CONFIG_SENSORS_F71805F=y
CONFIG_SENSORS_F71882FG=m
CONFIG_SENSORS_F75375S=y
# CONFIG_SENSORS_MC13783_ADC is not set
CONFIG_SENSORS_FSCHMD=y
CONFIG_SENSORS_FTSTEUTATES=y
CONFIG_SENSORS_GL518SM=m
CONFIG_SENSORS_GL520SM=y
CONFIG_SENSORS_G760A=m
CONFIG_SENSORS_G762=y
CONFIG_SENSORS_GPIO_FAN=m
CONFIG_SENSORS_HIH6130=m
CONFIG_SENSORS_IIO_HWMON=m
CONFIG_SENSORS_I5500=y
# CONFIG_SENSORS_CORETEMP is not set
CONFIG_SENSORS_IT87=m
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_POWR1220 is not set
CONFIG_SENSORS_LINEAGE=y
CONFIG_SENSORS_LTC2945=m
# CONFIG_SENSORS_LTC2990 is not set
CONFIG_SENSORS_LTC4151=y
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4222 is not set
CONFIG_SENSORS_LTC4245=m
CONFIG_SENSORS_LTC4260=m
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_MAX1111 is not set
# CONFIG_SENSORS_MAX16065 is not set
CONFIG_SENSORS_MAX1619=m
CONFIG_SENSORS_MAX1668=m
CONFIG_SENSORS_MAX197=y
CONFIG_SENSORS_MAX31722=m
CONFIG_SENSORS_MAX6639=m
CONFIG_SENSORS_MAX6642=m
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MAX31790 is not set
CONFIG_SENSORS_MCP3021=y
CONFIG_SENSORS_TC654=y
# CONFIG_SENSORS_MENF21BMC_HWMON is not set
CONFIG_SENSORS_ADCXX=y
CONFIG_SENSORS_LM63=y
CONFIG_SENSORS_LM70=m
# CONFIG_SENSORS_LM73 is not set
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=y
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM80=m
# CONFIG_SENSORS_LM83 is not set
CONFIG_SENSORS_LM85=y
# CONFIG_SENSORS_LM87 is not set
CONFIG_SENSORS_LM90=y
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
CONFIG_SENSORS_LM95234=y
CONFIG_SENSORS_LM95241=m
CONFIG_SENSORS_LM95245=m
CONFIG_SENSORS_PC87360=y
# CONFIG_SENSORS_PC87427 is not set
CONFIG_SENSORS_NTC_THERMISTOR=m
# CONFIG_SENSORS_NCT6683 is not set
# CONFIG_SENSORS_NCT6775 is not set
CONFIG_SENSORS_NCT7802=y
CONFIG_SENSORS_NCT7904=m
# CONFIG_SENSORS_PCF8591 is not set
CONFIG_PMBUS=y
# CONFIG_SENSORS_PMBUS is not set
# CONFIG_SENSORS_ADM1275 is not set
CONFIG_SENSORS_LM25066=m
CONFIG_SENSORS_LTC2978=y
CONFIG_SENSORS_LTC2978_REGULATOR=y
CONFIG_SENSORS_LTC3815=m
CONFIG_SENSORS_MAX16064=m
# CONFIG_SENSORS_MAX20751 is not set
CONFIG_SENSORS_MAX34440=y
# CONFIG_SENSORS_MAX8688 is not set
CONFIG_SENSORS_TPS40422=y
CONFIG_SENSORS_UCD9000=m
# CONFIG_SENSORS_UCD9200 is not set
CONFIG_SENSORS_ZL6100=y
# CONFIG_SENSORS_PWM_FAN is not set
CONFIG_SENSORS_SHT15=m
# CONFIG_SENSORS_SHT21 is not set
CONFIG_SENSORS_SHT3x=y
CONFIG_SENSORS_SHTC1=m
CONFIG_SENSORS_SIS5595=m
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
CONFIG_SENSORS_EMC2103=m
CONFIG_SENSORS_EMC6W201=y
CONFIG_SENSORS_SMSC47M1=m
# CONFIG_SENSORS_SMSC47M192 is not set
CONFIG_SENSORS_SMSC47B397=y
CONFIG_SENSORS_SCH56XX_COMMON=y
CONFIG_SENSORS_SCH5627=m
CONFIG_SENSORS_SCH5636=y
CONFIG_SENSORS_SMM665=y
# CONFIG_SENSORS_ADC128D818 is not set
CONFIG_SENSORS_ADS1015=m
CONFIG_SENSORS_ADS7828=m
CONFIG_SENSORS_ADS7871=m
CONFIG_SENSORS_AMC6821=y
# CONFIG_SENSORS_INA209 is not set
CONFIG_SENSORS_INA2XX=y
CONFIG_SENSORS_INA3221=y
CONFIG_SENSORS_TC74=m
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_TMP102=m
CONFIG_SENSORS_TMP103=y
# CONFIG_SENSORS_TMP108 is not set
CONFIG_SENSORS_TMP401=y
CONFIG_SENSORS_TMP421=m
# CONFIG_SENSORS_VIA_CPUTEMP is not set
CONFIG_SENSORS_VIA686A=y
CONFIG_SENSORS_VT1211=y
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
CONFIG_SENSORS_W83791D=y
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
CONFIG_SENSORS_W83L786NG=m
CONFIG_SENSORS_W83627HF=y
# CONFIG_SENSORS_W83627EHF is not set
CONFIG_SENSORS_WM8350=y

#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
CONFIG_SENSORS_ATK0110=m
CONFIG_THERMAL=y
# CONFIG_THERMAL_HWMON is not set
CONFIG_THERMAL_OF=y
# CONFIG_THERMAL_WRITABLE_TRIPS is not set
# CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE is not set
CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE=y
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR is not set
CONFIG_THERMAL_GOV_FAIR_SHARE=y
# CONFIG_THERMAL_GOV_STEP_WISE is not set
CONFIG_THERMAL_GOV_BANG_BANG=y
CONFIG_THERMAL_GOV_USER_SPACE=y
CONFIG_THERMAL_GOV_POWER_ALLOCATOR=y
CONFIG_THERMAL_EMULATION=y
CONFIG_MAX77620_THERMAL=y
CONFIG_QORIQ_THERMAL=m
# CONFIG_INTEL_POWERCLAMP is not set
# CONFIG_INTEL_SOC_DTS_THERMAL is not set

#
# ACPI INT340X thermal drivers
#
# CONFIG_INT340X_THERMAL is not set
CONFIG_INTEL_PCH_THERMAL=m
# CONFIG_QCOM_SPMI_TEMP_ALARM is not set
# CONFIG_GENERIC_ADC_THERMAL is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
# CONFIG_WATCHDOG_SYSFS is not set

#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_DA9052_WATCHDOG is not set
# CONFIG_DA9062_WATCHDOG is not set
# CONFIG_GPIO_WATCHDOG is not set
CONFIG_MENF21BMC_WATCHDOG=m
# CONFIG_WDAT_WDT is not set
CONFIG_WM8350_WATCHDOG=y
# CONFIG_XILINX_WATCHDOG is not set
CONFIG_ZIIRAVE_WATCHDOG=m
CONFIG_CADENCE_WATCHDOG=y
# CONFIG_DW_WATCHDOG is not set
CONFIG_MAX63XX_WATCHDOG=m
# CONFIG_MAX77620_WATCHDOG is not set
CONFIG_ACQUIRE_WDT=m
# CONFIG_ADVANTECH_WDT is not set
CONFIG_ALIM1535_WDT=m
CONFIG_ALIM7101_WDT=m
CONFIG_F71808E_WDT=m
# CONFIG_SP5100_TCO is not set
CONFIG_SBC_FITPC2_WATCHDOG=m
# CONFIG_EUROTECH_WDT is not set
CONFIG_IB700_WDT=m
CONFIG_IBMASR=m
CONFIG_WAFER_WDT=m
CONFIG_I6300ESB_WDT=y
CONFIG_IE6XX_WDT=m
CONFIG_ITCO_WDT=m
CONFIG_ITCO_VENDOR_SUPPORT=y
# CONFIG_IT8712F_WDT is not set
CONFIG_IT87_WDT=m
CONFIG_HP_WATCHDOG=y
CONFIG_KEMPLD_WDT=m
CONFIG_HPWDT_NMI_DECODING=y
# CONFIG_SC1200_WDT is not set
CONFIG_PC87413_WDT=m
# CONFIG_NV_TCO is not set
CONFIG_60XX_WDT=y
# CONFIG_SBC8360_WDT is not set
# CONFIG_SBC7240_WDT is not set
# CONFIG_CPU5_WDT is not set
# CONFIG_SMSC_SCH311X_WDT is not set
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_VIA_WDT is not set
# CONFIG_W83627HF_WDT is not set
# CONFIG_W83877F_WDT is not set
CONFIG_W83977F_WDT=m
CONFIG_MACHZ_WDT=y
CONFIG_SBC_EPX_C3_WATCHDOG=m
CONFIG_INTEL_MEI_WDT=m
CONFIG_NI903X_WDT=m
CONFIG_MEN_A21_WDT=m

#
# PCI-based Watchdog Cards
#
CONFIG_PCIPCWATCHDOG=y
CONFIG_WDTPCI=y

#
# USB-based Watchdog Cards
#
CONFIG_USBPCWATCHDOG=m

#
# Watchdog Pretimeout Governors
#
CONFIG_WATCHDOG_PRETIMEOUT_GOV=y
# CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP is not set
CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC=y
CONFIG_WATCHDOG_PRETIMEOUT_GOV_NOOP=m
CONFIG_WATCHDOG_PRETIMEOUT_GOV_PANIC=y
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
CONFIG_SSB=y
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
# CONFIG_SSB_B43_PCI_BRIDGE is not set
CONFIG_SSB_SDIOHOST_POSSIBLE=y
CONFIG_SSB_SDIOHOST=y
CONFIG_SSB_DEBUG=y
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y
# CONFIG_SSB_DRIVER_GPIO is not set
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
CONFIG_BCMA=m
CONFIG_BCMA_HOST_PCI_POSSIBLE=y
# CONFIG_BCMA_HOST_PCI is not set
CONFIG_BCMA_HOST_SOC=y
CONFIG_BCMA_DRIVER_PCI=y
# CONFIG_BCMA_SFLASH is not set
# CONFIG_BCMA_DRIVER_GMAC_CMN is not set
CONFIG_BCMA_DRIVER_GPIO=y
# CONFIG_BCMA_DEBUG is not set

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_CS5535 is not set
CONFIG_MFD_ACT8945A=y
# CONFIG_MFD_AS3711 is not set
# CONFIG_MFD_AS3722 is not set
CONFIG_PMIC_ADP5520=y
CONFIG_MFD_AAT2870_CORE=y
CONFIG_MFD_ATMEL_FLEXCOM=y
CONFIG_MFD_ATMEL_HLCDC=y
# CONFIG_MFD_BCM590XX is not set
CONFIG_MFD_AXP20X=y
CONFIG_MFD_AXP20X_I2C=y
CONFIG_MFD_CROS_EC=m
CONFIG_MFD_CROS_EC_I2C=m
# CONFIG_MFD_CROS_EC_SPI is not set
# CONFIG_PMIC_DA903X is not set
CONFIG_PMIC_DA9052=y
# CONFIG_MFD_DA9052_SPI is not set
CONFIG_MFD_DA9052_I2C=y
# CONFIG_MFD_DA9055 is not set
CONFIG_MFD_DA9062=y
# CONFIG_MFD_DA9063 is not set
CONFIG_MFD_DA9150=y
CONFIG_MFD_DLN2=y
CONFIG_MFD_MC13XXX=y
CONFIG_MFD_MC13XXX_SPI=m
CONFIG_MFD_MC13XXX_I2C=y
CONFIG_MFD_HI6421_PMIC=m
CONFIG_HTC_PASIC3=y
# CONFIG_HTC_I2CPLD is not set
CONFIG_MFD_INTEL_QUARK_I2C_GPIO=m
CONFIG_LPC_ICH=m
CONFIG_LPC_SCH=y
# CONFIG_INTEL_SOC_PMIC is not set
CONFIG_MFD_INTEL_LPSS=y
CONFIG_MFD_INTEL_LPSS_ACPI=y
CONFIG_MFD_INTEL_LPSS_PCI=m
# CONFIG_MFD_JANZ_CMODIO is not set
CONFIG_MFD_KEMPLD=m
CONFIG_MFD_88PM800=m
CONFIG_MFD_88PM805=y
CONFIG_MFD_88PM860X=y
CONFIG_MFD_MAX14577=m
CONFIG_MFD_MAX77620=y
# CONFIG_MFD_MAX77686 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
CONFIG_MFD_MAX8907=y
# CONFIG_MFD_MAX8925 is not set
CONFIG_MFD_MAX8997=y
CONFIG_MFD_MAX8998=y
CONFIG_MFD_MT6397=y
CONFIG_MFD_MENF21BMC=m
CONFIG_EZX_PCAP=y
CONFIG_MFD_VIPERBOARD=y
# CONFIG_MFD_RETU is not set
CONFIG_MFD_PCF50633=m
# CONFIG_PCF50633_ADC is not set
# CONFIG_PCF50633_GPIO is not set
CONFIG_UCB1400_CORE=m
CONFIG_MFD_RDC321X=m
CONFIG_MFD_RTSX_PCI=m
CONFIG_MFD_RT5033=y
CONFIG_MFD_RTSX_USB=y
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_RK808 is not set
# CONFIG_MFD_RN5T618 is not set
# CONFIG_MFD_SEC_CORE is not set
CONFIG_MFD_SI476X_CORE=y
CONFIG_MFD_SM501=y
# CONFIG_MFD_SM501_GPIO is not set
CONFIG_MFD_SKY81452=m
# CONFIG_MFD_SMSC is not set
CONFIG_ABX500_CORE=y
CONFIG_AB3100_CORE=y
# CONFIG_AB3100_OTP is not set
CONFIG_MFD_STMPE=y

#
# STMicroelectronics STMPE Interface Drivers
#
CONFIG_STMPE_I2C=y
# CONFIG_STMPE_SPI is not set
CONFIG_MFD_SYSCON=y
# CONFIG_MFD_TI_AM335X_TSCADC is not set
CONFIG_MFD_LP3943=m
# CONFIG_MFD_LP8788 is not set
CONFIG_MFD_PALMAS=y
CONFIG_TPS6105X=y
# CONFIG_TPS65010 is not set
CONFIG_TPS6507X=y
# CONFIG_MFD_TPS65086 is not set
CONFIG_MFD_TPS65090=y
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TI_LP873X is not set
CONFIG_MFD_TPS65218=y
CONFIG_MFD_TPS6586X=y
CONFIG_MFD_TPS65910=y
CONFIG_MFD_TPS65912=m
CONFIG_MFD_TPS65912_I2C=m
# CONFIG_MFD_TPS65912_SPI is not set
CONFIG_MFD_TPS80031=y
# CONFIG_TWL4030_CORE is not set
CONFIG_TWL6040_CORE=y
CONFIG_MFD_WL1273_CORE=y
CONFIG_MFD_LM3533=y
CONFIG_MFD_TIMBERDALE=y
# CONFIG_MFD_TC3589X is not set
# CONFIG_MFD_TMIO is not set
CONFIG_MFD_VX855=y
CONFIG_MFD_ARIZONA=y
CONFIG_MFD_ARIZONA_I2C=y
CONFIG_MFD_ARIZONA_SPI=m
# CONFIG_MFD_CS47L24 is not set
CONFIG_MFD_WM5102=y
# CONFIG_MFD_WM5110 is not set
# CONFIG_MFD_WM8997 is not set
CONFIG_MFD_WM8998=y
CONFIG_MFD_WM8400=y
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
CONFIG_MFD_WM8350=y
CONFIG_MFD_WM8350_I2C=y
CONFIG_MFD_WM8994=m
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_VIRTUAL_CONSUMER=y
CONFIG_REGULATOR_USERSPACE_CONSUMER=y
CONFIG_REGULATOR_88PM800=m
# CONFIG_REGULATOR_88PM8607 is not set
# CONFIG_REGULATOR_ACT8865 is not set
CONFIG_REGULATOR_ACT8945A=y
CONFIG_REGULATOR_AD5398=m
CONFIG_REGULATOR_ANATOP=y
CONFIG_REGULATOR_AAT2870=m
CONFIG_REGULATOR_AB3100=y
CONFIG_REGULATOR_AXP20X=y
# CONFIG_REGULATOR_DA9052 is not set
# CONFIG_REGULATOR_DA9062 is not set
CONFIG_REGULATOR_DA9210=m
CONFIG_REGULATOR_DA9211=y
CONFIG_REGULATOR_FAN53555=m
CONFIG_REGULATOR_GPIO=m
# CONFIG_REGULATOR_HI6421 is not set
CONFIG_REGULATOR_ISL9305=y
CONFIG_REGULATOR_ISL6271A=m
CONFIG_REGULATOR_LP3971=y
CONFIG_REGULATOR_LP3972=y
CONFIG_REGULATOR_LP872X=y
CONFIG_REGULATOR_LP8755=m
# CONFIG_REGULATOR_LTC3589 is not set
CONFIG_REGULATOR_LTC3676=y
CONFIG_REGULATOR_MAX14577=m
# CONFIG_REGULATOR_MAX1586 is not set
CONFIG_REGULATOR_MAX77620=y
CONFIG_REGULATOR_MAX8649=y
# CONFIG_REGULATOR_MAX8660 is not set
CONFIG_REGULATOR_MAX8907=m
CONFIG_REGULATOR_MAX8952=m
CONFIG_REGULATOR_MAX8973=y
# CONFIG_REGULATOR_MAX8997 is not set
CONFIG_REGULATOR_MAX8998=y
CONFIG_REGULATOR_MC13XXX_CORE=m
# CONFIG_REGULATOR_MC13783 is not set
CONFIG_REGULATOR_MC13892=m
CONFIG_REGULATOR_MT6311=y
CONFIG_REGULATOR_MT6323=y
CONFIG_REGULATOR_MT6397=m
# CONFIG_REGULATOR_PALMAS is not set
CONFIG_REGULATOR_PCAP=y
CONFIG_REGULATOR_PCF50633=m
CONFIG_REGULATOR_PFUZE100=m
# CONFIG_REGULATOR_PV88060 is not set
CONFIG_REGULATOR_PV88080=y
CONFIG_REGULATOR_PV88090=y
CONFIG_REGULATOR_PWM=m
CONFIG_REGULATOR_QCOM_SPMI=m
CONFIG_REGULATOR_RT5033=y
CONFIG_REGULATOR_SKY81452=m
CONFIG_REGULATOR_TPS51632=y
# CONFIG_REGULATOR_TPS6105X is not set
CONFIG_REGULATOR_TPS62360=m
# CONFIG_REGULATOR_TPS65023 is not set
CONFIG_REGULATOR_TPS6507X=y
# CONFIG_REGULATOR_TPS65090 is not set
CONFIG_REGULATOR_TPS65218=m
# CONFIG_REGULATOR_TPS6524X is not set
# CONFIG_REGULATOR_TPS6586X is not set
CONFIG_REGULATOR_TPS65910=m
CONFIG_REGULATOR_TPS65912=m
CONFIG_REGULATOR_TPS80031=m
CONFIG_REGULATOR_WM8350=m
# CONFIG_REGULATOR_WM8400 is not set
CONFIG_REGULATOR_WM8994=m
CONFIG_MEDIA_SUPPORT=y

#
# Multimedia core support
#
CONFIG_MEDIA_CAMERA_SUPPORT=y
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y
# CONFIG_MEDIA_RADIO_SUPPORT is not set
CONFIG_MEDIA_SDR_SUPPORT=y
# CONFIG_MEDIA_RC_SUPPORT is not set
CONFIG_MEDIA_CEC_SUPPORT=y
CONFIG_MEDIA_CEC_DEBUG=y
CONFIG_MEDIA_CEC_EDID=y
# CONFIG_MEDIA_CONTROLLER is not set
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_V4L2=y
# CONFIG_VIDEO_ADV_DEBUG is not set
CONFIG_VIDEO_FIXED_MINOR_RANGES=y
# CONFIG_VIDEO_PCI_SKELETON is not set
CONFIG_VIDEO_TUNER=y
CONFIG_VIDEOBUF_GEN=y
CONFIG_VIDEOBUF_DMA_SG=y
CONFIG_VIDEOBUF2_CORE=y
CONFIG_VIDEOBUF2_MEMOPS=y
CONFIG_VIDEOBUF2_DMA_CONTIG=y
CONFIG_VIDEOBUF2_VMALLOC=y
CONFIG_VIDEOBUF2_DMA_SG=y
CONFIG_VIDEOBUF2_DVB=y
CONFIG_DVB_CORE=y
# CONFIG_DVB_NET is not set
CONFIG_TTPCI_EEPROM=y
CONFIG_DVB_MAX_ADAPTERS=16
# CONFIG_DVB_DYNAMIC_MINORS is not set
# CONFIG_DVB_DEMUX_SECTION_LOSS_LOG is not set

#
# Media drivers
#
CONFIG_MEDIA_USB_SUPPORT=y

#
# Webcam devices
#
# CONFIG_USB_VIDEO_CLASS is not set
CONFIG_USB_GSPCA=y
CONFIG_USB_M5602=m
CONFIG_USB_STV06XX=y
# CONFIG_USB_GL860 is not set
CONFIG_USB_GSPCA_BENQ=y
CONFIG_USB_GSPCA_CONEX=m
CONFIG_USB_GSPCA_CPIA1=y
# CONFIG_USB_GSPCA_DTCS033 is not set
# CONFIG_USB_GSPCA_ETOMS is not set
CONFIG_USB_GSPCA_FINEPIX=m
# CONFIG_USB_GSPCA_JEILINJ is not set
CONFIG_USB_GSPCA_JL2005BCD=m
CONFIG_USB_GSPCA_KINECT=m
CONFIG_USB_GSPCA_KONICA=m
CONFIG_USB_GSPCA_MARS=m
# CONFIG_USB_GSPCA_MR97310A is not set
CONFIG_USB_GSPCA_NW80X=y
# CONFIG_USB_GSPCA_OV519 is not set
CONFIG_USB_GSPCA_OV534=y
CONFIG_USB_GSPCA_OV534_9=y
# CONFIG_USB_GSPCA_PAC207 is not set
CONFIG_USB_GSPCA_PAC7302=m
# CONFIG_USB_GSPCA_PAC7311 is not set
# CONFIG_USB_GSPCA_SE401 is not set
CONFIG_USB_GSPCA_SN9C2028=m
# CONFIG_USB_GSPCA_SN9C20X is not set
CONFIG_USB_GSPCA_SONIXB=y
CONFIG_USB_GSPCA_SONIXJ=m
CONFIG_USB_GSPCA_SPCA500=m
# CONFIG_USB_GSPCA_SPCA501 is not set
# CONFIG_USB_GSPCA_SPCA505 is not set
CONFIG_USB_GSPCA_SPCA506=m
# CONFIG_USB_GSPCA_SPCA508 is not set
CONFIG_USB_GSPCA_SPCA561=y
CONFIG_USB_GSPCA_SPCA1528=y
CONFIG_USB_GSPCA_SQ905=m
# CONFIG_USB_GSPCA_SQ905C is not set
CONFIG_USB_GSPCA_SQ930X=y
CONFIG_USB_GSPCA_STK014=y
CONFIG_USB_GSPCA_STK1135=y
CONFIG_USB_GSPCA_STV0680=m
# CONFIG_USB_GSPCA_SUNPLUS is not set
CONFIG_USB_GSPCA_T613=m
CONFIG_USB_GSPCA_TOPRO=m
CONFIG_USB_GSPCA_TOUPTEK=y
CONFIG_USB_GSPCA_TV8532=m
# CONFIG_USB_GSPCA_VC032X is not set
CONFIG_USB_GSPCA_VICAM=m
# CONFIG_USB_GSPCA_XIRLINK_CIT is not set
CONFIG_USB_GSPCA_ZC3XX=y
CONFIG_USB_PWC=m
# CONFIG_USB_PWC_DEBUG is not set
CONFIG_USB_PWC_INPUT_EVDEV=y
CONFIG_VIDEO_CPIA2=m
# CONFIG_USB_ZR364XX is not set
CONFIG_USB_STKWEBCAM=y
# CONFIG_USB_S2255 is not set
# CONFIG_VIDEO_USBTV is not set

#
# Analog/digital TV USB devices
#
# CONFIG_VIDEO_AU0828 is not set

#
# Digital TV USB devices
#
CONFIG_DVB_USB_V2=y
CONFIG_DVB_USB_AF9015=m
CONFIG_DVB_USB_AF9035=m
# CONFIG_DVB_USB_ANYSEE is not set
CONFIG_DVB_USB_AU6610=y
CONFIG_DVB_USB_AZ6007=m
CONFIG_DVB_USB_CE6230=m
CONFIG_DVB_USB_EC168=m
CONFIG_DVB_USB_GL861=m
CONFIG_DVB_USB_MXL111SF=m
CONFIG_DVB_USB_RTL28XXU=y
# CONFIG_DVB_USB_DVBSKY is not set
CONFIG_DVB_TTUSB_BUDGET=m
# CONFIG_DVB_TTUSB_DEC is not set
CONFIG_SMS_USB_DRV=m
# CONFIG_DVB_B2C2_FLEXCOP_USB is not set
CONFIG_DVB_AS102=m

#
# Webcam, TV (analog/digital) USB devices
#
CONFIG_VIDEO_EM28XX=y
# CONFIG_VIDEO_EM28XX_V4L2 is not set
# CONFIG_VIDEO_EM28XX_ALSA is not set
# CONFIG_VIDEO_EM28XX_DVB is not set

#
# Software defined radio USB devices
#
CONFIG_USB_AIRSPY=y
CONFIG_USB_HACKRF=m
# CONFIG_USB_MSI2500 is not set

#
# USB HDMI CEC adapters
#
CONFIG_USB_PULSE8_CEC=m
CONFIG_MEDIA_PCI_SUPPORT=y

#
# Media capture support
#
CONFIG_VIDEO_MEYE=m
CONFIG_VIDEO_SOLO6X10=m
CONFIG_VIDEO_TW5864=y
CONFIG_VIDEO_TW68=y
CONFIG_VIDEO_TW686X=m
# CONFIG_VIDEO_ZORAN is not set

#
# Media capture/analog/hybrid TV support
#
CONFIG_VIDEO_CX25821=y
CONFIG_VIDEO_CX25821_ALSA=m
CONFIG_VIDEO_SAA7134=m
CONFIG_VIDEO_SAA7134_ALSA=m
CONFIG_VIDEO_SAA7134_DVB=m
# CONFIG_VIDEO_SAA7164 is not set

#
# Media digital TV PCI Adapters
#
CONFIG_DVB_AV7110=y
# CONFIG_DVB_AV7110_OSD is not set
# CONFIG_DVB_BUDGET_CORE is not set
# CONFIG_DVB_B2C2_FLEXCOP_PCI is not set
CONFIG_DVB_PLUTO2=m
CONFIG_DVB_PT1=m
CONFIG_DVB_PT3=y
CONFIG_DVB_NGENE=y
CONFIG_DVB_DDBRIDGE=m
CONFIG_DVB_NETUP_UNIDVB=y
CONFIG_V4L_PLATFORM_DRIVERS=y
CONFIG_VIDEO_CAFE_CCIC=y
CONFIG_VIDEO_VIA_CAMERA=m
CONFIG_SOC_CAMERA=m
# CONFIG_SOC_CAMERA_PLATFORM is not set
# CONFIG_V4L_MEM2MEM_DRIVERS is not set
# CONFIG_V4L_TEST_DRIVERS is not set
CONFIG_DVB_PLATFORM_DRIVERS=y

#
# Supported MMC/SDIO adapters
#
# CONFIG_SMS_SDIO_DRV is not set
CONFIG_MEDIA_COMMON_OPTIONS=y

#
# common driver options
#
CONFIG_VIDEO_TVEEPROM=y
CONFIG_CYPRESS_FIRMWARE=m
CONFIG_VIDEO_SAA7146=y
CONFIG_VIDEO_SAA7146_VV=y
CONFIG_SMS_SIANO_MDTV=m

#
# Media ancillary drivers (tuners, sensors, i2c, spi, frontends)
#
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y
CONFIG_MEDIA_ATTACH=y

#
# Audio decoders, processors and mixers
#

#
# RDS decoders
#
CONFIG_VIDEO_SAA6588=m

#
# Video decoders
#

#
# Video and audio decoders
#

#
# Video encoders
#

#
# Camera sensor devices
#
CONFIG_VIDEO_OV7670=y
CONFIG_VIDEO_MT9M111=m

#
# Flash devices
#

#
# Video improvement chips
#

#
# Audio/Video compression chips
#
CONFIG_VIDEO_SAA6752HS=m

#
# Miscellaneous helper chips
#

#
# Sensors used on soc_camera driver
#

#
# soc_camera sensor drivers
#
CONFIG_SOC_CAMERA_IMX074=m
# CONFIG_SOC_CAMERA_MT9M001 is not set
CONFIG_SOC_CAMERA_MT9M111=m
# CONFIG_SOC_CAMERA_MT9T031 is not set
CONFIG_SOC_CAMERA_MT9T112=m
CONFIG_SOC_CAMERA_MT9V022=m
# CONFIG_SOC_CAMERA_OV2640 is not set
CONFIG_SOC_CAMERA_OV5642=m
CONFIG_SOC_CAMERA_OV6650=m
CONFIG_SOC_CAMERA_OV772X=m
CONFIG_SOC_CAMERA_OV9640=m
# CONFIG_SOC_CAMERA_OV9740 is not set
CONFIG_SOC_CAMERA_RJ54N1=m
CONFIG_SOC_CAMERA_TW9910=m
CONFIG_MEDIA_TUNER=y
CONFIG_MEDIA_TUNER_SIMPLE=y
CONFIG_MEDIA_TUNER_TDA8290=y
CONFIG_MEDIA_TUNER_TDA827X=y
CONFIG_MEDIA_TUNER_TDA18271=y
CONFIG_MEDIA_TUNER_TDA9887=y
CONFIG_MEDIA_TUNER_MT20XX=y
CONFIG_MEDIA_TUNER_MT2060=y
CONFIG_MEDIA_TUNER_MT2063=m
CONFIG_MEDIA_TUNER_MT2131=y
CONFIG_MEDIA_TUNER_QT1010=y
CONFIG_MEDIA_TUNER_XC2028=y
CONFIG_MEDIA_TUNER_XC5000=y
CONFIG_MEDIA_TUNER_XC4000=y
CONFIG_MEDIA_TUNER_MXL5005S=y
CONFIG_MEDIA_TUNER_MXL5007T=m
CONFIG_MEDIA_TUNER_MC44S803=y
CONFIG_MEDIA_TUNER_TDA18218=m
CONFIG_MEDIA_TUNER_FC0011=m
CONFIG_MEDIA_TUNER_FC0012=y
CONFIG_MEDIA_TUNER_FC0013=y
CONFIG_MEDIA_TUNER_E4000=y
CONFIG_MEDIA_TUNER_FC2580=y
CONFIG_MEDIA_TUNER_TUA9001=y
CONFIG_MEDIA_TUNER_SI2157=y
CONFIG_MEDIA_TUNER_IT913X=m
CONFIG_MEDIA_TUNER_R820T=y
CONFIG_MEDIA_TUNER_MXL301RF=y
CONFIG_MEDIA_TUNER_QM1D1C0042=y

#
# Multistandard (satellite) frontends
#
CONFIG_DVB_STV090x=y
CONFIG_DVB_STV6110x=y

#
# Multistandard (cable + terrestrial) frontends
#
CONFIG_DVB_DRXK=y
CONFIG_DVB_TDA18271C2DD=y
CONFIG_DVB_MN88472=y
CONFIG_DVB_MN88473=y

#
# DVB-S (satellite) frontends
#
CONFIG_DVB_MT312=m
CONFIG_DVB_ZL10036=m
CONFIG_DVB_ZL10039=m
CONFIG_DVB_STV0299=y
CONFIG_DVB_TDA8083=y
CONFIG_DVB_TDA10086=m
CONFIG_DVB_VES1X93=y
CONFIG_DVB_TDA826X=m

#
# DVB-T (terrestrial) frontends
#
CONFIG_DVB_SP8870=y
CONFIG_DVB_CX22700=m
CONFIG_DVB_L64781=y
CONFIG_DVB_TDA1004X=m
CONFIG_DVB_MT352=m
CONFIG_DVB_ZL10353=y
CONFIG_DVB_TDA10048=m
CONFIG_DVB_AF9013=m
CONFIG_DVB_EC100=m
CONFIG_DVB_CXD2841ER=y
CONFIG_DVB_RTL2830=y
CONFIG_DVB_RTL2832=y
CONFIG_DVB_RTL2832_SDR=y
CONFIG_DVB_SI2168=y
CONFIG_DVB_AS102_FE=m
# CONFIG_DVB_GP8PSK_FE is not set

#
# DVB-C (cable) frontends
#
CONFIG_DVB_VES1820=y
CONFIG_DVB_STV0297=y

#
# ATSC (North American/Korean Terrestrial/Cable DTV) frontends
#
CONFIG_DVB_NXT200X=m
CONFIG_DVB_LGDT330X=y
CONFIG_DVB_LGDT3305=m
CONFIG_DVB_LG2160=m

#
# ISDB-T (terrestrial) frontends
#

#
# ISDB-S (satellite) & ISDB-T (terrestrial) frontends
#
CONFIG_DVB_TC90522=y

#
# Digital terrestrial only tuners/PLL
#
CONFIG_DVB_PLL=m

#
# SEC control devices for DVB-S
#
CONFIG_DVB_LNBH25=y
CONFIG_DVB_LNBP21=y
CONFIG_DVB_ISL6405=m
CONFIG_DVB_ISL6421=m
CONFIG_DVB_AF9033=m
CONFIG_DVB_HORUS3A=y
CONFIG_DVB_ASCOT2E=y
CONFIG_DVB_HELENE=y

#
# Tools to develop new frontends
#
# CONFIG_DVB_DUMMY_FE is not set

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_INTEL_GTT=m
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_DRM=m
CONFIG_DRM_MIPI_DSI=y
CONFIG_DRM_DP_AUX_CHARDEV=y
CONFIG_DRM_KMS_HELPER=m
CONFIG_DRM_KMS_FB_HELPER=y
# CONFIG_DRM_FBDEV_EMULATION is not set
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_TTM=m
CONFIG_DRM_GEM_CMA_HELPER=y
CONFIG_DRM_KMS_CMA_HELPER=y

#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_CH7006 is not set
CONFIG_DRM_I2C_SIL164=m
CONFIG_DRM_I2C_NXP_TDA998X=m
# CONFIG_DRM_RADEON is not set
CONFIG_DRM_AMDGPU=m
CONFIG_DRM_AMDGPU_SI=y
CONFIG_DRM_AMDGPU_CIK=y
# CONFIG_DRM_AMDGPU_USERPTR is not set
# CONFIG_DRM_AMDGPU_GART_DEBUGFS is not set

#
# ACP (Audio CoProcessor) Configuration
#
# CONFIG_DRM_AMD_ACP is not set
CONFIG_DRM_NOUVEAU=m
CONFIG_NOUVEAU_DEBUG=5
CONFIG_NOUVEAU_DEBUG_DEFAULT=3
CONFIG_DRM_NOUVEAU_BACKLIGHT=y
CONFIG_DRM_I915=m
# CONFIG_DRM_I915_ALPHA_SUPPORT is not set
# CONFIG_DRM_I915_CAPTURE_ERROR is not set
# CONFIG_DRM_I915_USERPTR is not set
CONFIG_DRM_VGEM=m
CONFIG_DRM_VMWGFX=m
# CONFIG_DRM_VMWGFX_FBCON is not set
# CONFIG_DRM_GMA500 is not set
# CONFIG_DRM_UDL is not set
CONFIG_DRM_AST=m
CONFIG_DRM_MGAG200=m
CONFIG_DRM_CIRRUS_QEMU=m
CONFIG_DRM_QXL=m
CONFIG_DRM_BOCHS=m
CONFIG_DRM_PANEL=y

#
# Display Panels
#
CONFIG_DRM_PANEL_SIMPLE=m
CONFIG_DRM_PANEL_JDI_LT070ME05000=m
CONFIG_DRM_PANEL_SAMSUNG_LD9040=m
# CONFIG_DRM_PANEL_LG_LG4573 is not set
# CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00 is not set
CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0=m
CONFIG_DRM_PANEL_SHARP_LQ101R1SX01=m
CONFIG_DRM_PANEL_SHARP_LS043T1LE01=m
CONFIG_DRM_BRIDGE=y

#
# Display Interface Bridges
#
CONFIG_DRM_ANALOGIX_ANX78XX=m
CONFIG_DRM_DUMB_VGA_DAC=m
CONFIG_DRM_NXP_PTN3460=m
CONFIG_DRM_PARADE_PS8622=m
CONFIG_DRM_SIL_SII8620=m
CONFIG_DRM_SII902X=m
CONFIG_DRM_TOSHIBA_TC358767=m
CONFIG_DRM_TI_TFP410=m
# CONFIG_DRM_I2C_ADV7511 is not set
CONFIG_DRM_ARCPGU=m
CONFIG_DRM_HISI_HIBMC=m
# CONFIG_DRM_MXSFB is not set
CONFIG_DRM_LEGACY=y
# CONFIG_DRM_TDFX is not set
CONFIG_DRM_R128=m
CONFIG_DRM_MGA=m
CONFIG_DRM_VIA=m
CONFIG_DRM_SAVAGE=m

#
# Frame buffer Devices
#
CONFIG_FB=m
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB_DDC=m
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=m
CONFIG_FB_CFB_COPYAREA=m
CONFIG_FB_CFB_IMAGEBLIT=m
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=m
CONFIG_FB_SYS_COPYAREA=m
CONFIG_FB_SYS_IMAGEBLIT=m
CONFIG_FB_FOREIGN_ENDIAN=y
# CONFIG_FB_BOTH_ENDIAN is not set
# CONFIG_FB_BIG_ENDIAN is not set
CONFIG_FB_LITTLE_ENDIAN=y
CONFIG_FB_SYS_FOPS=m
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_SVGALIB=m
# CONFIG_FB_MACMODES is not set
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
CONFIG_FB_PM2=m
# CONFIG_FB_PM2_FIFO_DISCONNECT is not set
CONFIG_FB_CYBER2000=m
CONFIG_FB_CYBER2000_DDC=y
CONFIG_FB_ARC=m
# CONFIG_FB_VGA16 is not set
CONFIG_FB_UVESA=m
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
CONFIG_FB_OPENCORES=m
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
CONFIG_FB_RIVA=m
# CONFIG_FB_RIVA_I2C is not set
# CONFIG_FB_RIVA_DEBUG is not set
CONFIG_FB_RIVA_BACKLIGHT=y
CONFIG_FB_I740=m
# CONFIG_FB_LE80578 is not set
CONFIG_FB_MATROX=m
# CONFIG_FB_MATROX_MILLENIUM is not set
CONFIG_FB_MATROX_MYSTIQUE=y
# CONFIG_FB_MATROX_G is not set
CONFIG_FB_MATROX_I2C=m
CONFIG_FB_RADEON=m
CONFIG_FB_RADEON_I2C=y
CONFIG_FB_RADEON_BACKLIGHT=y
CONFIG_FB_RADEON_DEBUG=y
CONFIG_FB_ATY128=m
CONFIG_FB_ATY128_BACKLIGHT=y
CONFIG_FB_ATY=m
# CONFIG_FB_ATY_CT is not set
CONFIG_FB_ATY_GX=y
CONFIG_FB_ATY_BACKLIGHT=y
CONFIG_FB_S3=m
# CONFIG_FB_S3_DDC is not set
CONFIG_FB_SAVAGE=m
CONFIG_FB_SAVAGE_I2C=y
CONFIG_FB_SAVAGE_ACCEL=y
CONFIG_FB_SIS=m
CONFIG_FB_SIS_300=y
# CONFIG_FB_SIS_315 is not set
CONFIG_FB_VIA=m
# CONFIG_FB_VIA_DIRECT_PROCFS is not set
# CONFIG_FB_VIA_X_COMPATIBILITY is not set
CONFIG_FB_NEOMAGIC=m
CONFIG_FB_KYRO=m
CONFIG_FB_3DFX=m
CONFIG_FB_3DFX_ACCEL=y
CONFIG_FB_3DFX_I2C=y
CONFIG_FB_VOODOO1=m
CONFIG_FB_VT8623=m
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_GEODE is not set
CONFIG_FB_SM501=m
# CONFIG_FB_SMSCUFX is not set
CONFIG_FB_UDL=m
CONFIG_FB_IBM_GXT4500=m
CONFIG_FB_VIRTUAL=m
CONFIG_FB_METRONOME=m
CONFIG_FB_MB862XX=m
CONFIG_FB_MB862XX_PCI_GDC=y
# CONFIG_FB_MB862XX_I2C is not set
CONFIG_FB_BROADSHEET=m
CONFIG_FB_AUO_K190X=m
CONFIG_FB_AUO_K1900=m
# CONFIG_FB_AUO_K1901 is not set
# CONFIG_FB_HYPERV is not set
CONFIG_FB_SSD1307=m
# CONFIG_FB_SM712 is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=y
# CONFIG_LCD_L4F00242T03 is not set
CONFIG_LCD_LMS283GF05=y
CONFIG_LCD_LTV350QV=m
CONFIG_LCD_ILI922X=m
CONFIG_LCD_ILI9320=m
CONFIG_LCD_TDO24M=y
# CONFIG_LCD_VGG2432A4 is not set
CONFIG_LCD_PLATFORM=m
# CONFIG_LCD_S6E63M0 is not set
# CONFIG_LCD_LD9040 is not set
CONFIG_LCD_AMS369FG06=m
CONFIG_LCD_LMS501KF03=m
CONFIG_LCD_HX8357=m
CONFIG_BACKLIGHT_CLASS_DEVICE=m
# CONFIG_BACKLIGHT_GENERIC is not set
CONFIG_BACKLIGHT_LM3533=m
CONFIG_BACKLIGHT_PWM=m
CONFIG_BACKLIGHT_DA9052=m
CONFIG_BACKLIGHT_APPLE=m
# CONFIG_BACKLIGHT_PM8941_WLED is not set
CONFIG_BACKLIGHT_SAHARA=m
CONFIG_BACKLIGHT_ADP5520=m
CONFIG_BACKLIGHT_ADP8860=m
# CONFIG_BACKLIGHT_ADP8870 is not set
CONFIG_BACKLIGHT_88PM860X=m
CONFIG_BACKLIGHT_PCF50633=m
# CONFIG_BACKLIGHT_AAT2870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LP855X is not set
# CONFIG_BACKLIGHT_SKY81452 is not set
CONFIG_BACKLIGHT_GPIO=m
CONFIG_BACKLIGHT_LV5207LP=m
# CONFIG_BACKLIGHT_BD6107 is not set
CONFIG_VGASTATE=m
CONFIG_VIDEOMODE_HELPERS=y
CONFIG_HDMI=y

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
# CONFIG_VGACON_SOFT_SCROLLBACK is not set
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=m
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_SOUND=y
CONFIG_SOUND_OSS_CORE=y
CONFIG_SOUND_OSS_CORE_PRECLAIM=y
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_JACK=y
CONFIG_SND_JACK_INPUT_DEV=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
# CONFIG_SND_PCM_OSS_PLUGINS is not set
CONFIG_SND_PCM_TIMER=y
# CONFIG_SND_SEQUENCER_OSS is not set
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_PROC_FS=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_DMA_SGBUF=y
CONFIG_SND_RAWMIDI_SEQ=m
CONFIG_SND_OPL3_LIB_SEQ=m
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_MPU401_UART=m
CONFIG_SND_OPL3_LIB=m
CONFIG_SND_VX_LIB=m
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
CONFIG_SND_DUMMY=m
# CONFIG_SND_ALOOP is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
CONFIG_SND_MPU401=m
CONFIG_SND_AC97_POWER_SAVE=y
CONFIG_SND_AC97_POWER_SAVE_DEFAULT=0
CONFIG_SND_SB_COMMON=m
CONFIG_SND_SB16_DSP=m
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
CONFIG_SND_ALS300=m
CONFIG_SND_ALS4000=m
CONFIG_SND_ALI5451=m
# CONFIG_SND_ASIHPI is not set
# CONFIG_SND_ATIIXP is not set
CONFIG_SND_ATIIXP_MODEM=m
# CONFIG_SND_AU8810 is not set
CONFIG_SND_AU8820=m
CONFIG_SND_AU8830=m
# CONFIG_SND_AW2 is not set
CONFIG_SND_AZT3328=m
# CONFIG_SND_BT87X is not set
CONFIG_SND_CA0106=m
CONFIG_SND_CMIPCI=m
CONFIG_SND_OXYGEN_LIB=m
# CONFIG_SND_OXYGEN is not set
CONFIG_SND_CS4281=m
CONFIG_SND_CS46XX=m
# CONFIG_SND_CS46XX_NEW_DSP is not set
CONFIG_SND_CS5530=m
# CONFIG_SND_CS5535AUDIO is not set
CONFIG_SND_CTXFI=m
CONFIG_SND_DARLA20=m
CONFIG_SND_GINA20=m
# CONFIG_SND_LAYLA20 is not set
CONFIG_SND_DARLA24=m
CONFIG_SND_GINA24=m
CONFIG_SND_LAYLA24=m
CONFIG_SND_MONA=m
CONFIG_SND_MIA=m
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
CONFIG_SND_INDIGOIO=m
CONFIG_SND_INDIGODJ=m
CONFIG_SND_INDIGOIOX=m
CONFIG_SND_INDIGODJX=m
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
CONFIG_SND_ENS1370=m
CONFIG_SND_ENS1371=m
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
CONFIG_SND_FM801=m
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
CONFIG_SND_ICE1712=m
CONFIG_SND_ICE1724=m
CONFIG_SND_INTEL8X0=m
CONFIG_SND_INTEL8X0M=m
# CONFIG_SND_KORG1212 is not set
CONFIG_SND_LOLA=m
CONFIG_SND_LX6464ES=m
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
CONFIG_SND_RIPTIDE=m
CONFIG_SND_RME32=m
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
CONFIG_SND_SIS7019=m
CONFIG_SND_SONICVIBES=m
CONFIG_SND_TRIDENT=m
# CONFIG_SND_VIA82XX is not set
CONFIG_SND_VIA82XX_MODEM=m
CONFIG_SND_VIRTUOSO=m
CONFIG_SND_VX222=m
CONFIG_SND_YMFPCI=m

#
# HD-Audio
#
CONFIG_SND_HDA=m
CONFIG_SND_HDA_INTEL=m
CONFIG_SND_HDA_HWDEP=y
CONFIG_SND_HDA_RECONFIG=y
CONFIG_SND_HDA_INPUT_BEEP=y
CONFIG_SND_HDA_INPUT_BEEP_MODE=1
CONFIG_SND_HDA_PATCH_LOADER=y
CONFIG_SND_HDA_CODEC_REALTEK=m
# CONFIG_SND_HDA_CODEC_ANALOG is not set
# CONFIG_SND_HDA_CODEC_SIGMATEL is not set
CONFIG_SND_HDA_CODEC_VIA=m
# CONFIG_SND_HDA_CODEC_HDMI is not set
CONFIG_SND_HDA_CODEC_CIRRUS=m
CONFIG_SND_HDA_CODEC_CONEXANT=m
# CONFIG_SND_HDA_CODEC_CA0110 is not set
# CONFIG_SND_HDA_CODEC_CA0132 is not set
CONFIG_SND_HDA_CODEC_CMEDIA=m
CONFIG_SND_HDA_CODEC_SI3054=m
CONFIG_SND_HDA_GENERIC=m
CONFIG_SND_HDA_CORE=m
CONFIG_SND_HDA_I915=y
CONFIG_SND_HDA_PREALLOC_SIZE=64
CONFIG_SND_SPI=y
CONFIG_SND_USB=y
CONFIG_SND_USB_AUDIO=m
CONFIG_SND_USB_UA101=m
CONFIG_SND_USB_USX2Y=m
# CONFIG_SND_USB_CAIAQ is not set
CONFIG_SND_USB_US122L=m
# CONFIG_SND_USB_6FIRE is not set
# CONFIG_SND_USB_HIFACE is not set
CONFIG_SND_BCD2000=m
CONFIG_SND_USB_LINE6=m
CONFIG_SND_USB_POD=m
CONFIG_SND_USB_PODHD=m
CONFIG_SND_USB_TONEPORT=m
# CONFIG_SND_USB_VARIAX is not set
CONFIG_SND_PCMCIA=y
CONFIG_SND_VXPOCKET=m
# CONFIG_SND_PDAUDIOCF is not set
# CONFIG_SND_SOC is not set
CONFIG_SOUND_PRIME=y
CONFIG_SOUND_OSS=y
CONFIG_SOUND_TRACEINIT=y
# CONFIG_SOUND_DMAP is not set
CONFIG_SOUND_VMIDI=m
CONFIG_SOUND_TRIX=y
# CONFIG_SOUND_MSS is not set
CONFIG_SOUND_MPU401=m
CONFIG_SOUND_PAS=m
# CONFIG_SOUND_PSS is not set
CONFIG_SOUND_SB=m
CONFIG_SOUND_YM3812=y
CONFIG_SOUND_UART6850=m
# CONFIG_SOUND_AEDSP16 is not set
CONFIG_SOUND_KAHLUA=m
CONFIG_AC97_BUS=m

#
# HID support
#
CONFIG_HID=m
# CONFIG_HID_BATTERY_STRENGTH is not set
CONFIG_HIDRAW=y
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=m

#
# Special HID drivers
#
CONFIG_HID_A4TECH=m
CONFIG_HID_ACRUX=m
CONFIG_HID_ACRUX_FF=y
# CONFIG_HID_APPLE is not set
CONFIG_HID_APPLEIR=m
CONFIG_HID_AUREAL=m
# CONFIG_HID_BELKIN is not set
CONFIG_HID_BETOP_FF=m
# CONFIG_HID_CHERRY is not set
CONFIG_HID_CHICONY=m
CONFIG_HID_CORSAIR=m
CONFIG_HID_PRODIKEYS=m
CONFIG_HID_CMEDIA=m
CONFIG_HID_CP2112=m
CONFIG_HID_CYPRESS=m
CONFIG_HID_DRAGONRISE=m
CONFIG_DRAGONRISE_FF=y
# CONFIG_HID_EMS_FF is not set
CONFIG_HID_ELECOM=m
CONFIG_HID_ELO=m
CONFIG_HID_EZKEY=m
# CONFIG_HID_GEMBIRD is not set
CONFIG_HID_GFRM=m
CONFIG_HID_HOLTEK=m
# CONFIG_HOLTEK_FF is not set
# CONFIG_HID_GT683R is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
CONFIG_HID_UCLOGIC=m
CONFIG_HID_WALTOP=m
CONFIG_HID_GYRATION=m
CONFIG_HID_ICADE=m
# CONFIG_HID_TWINHAN is not set
# CONFIG_HID_KENSINGTON is not set
# CONFIG_HID_LCPOWER is not set
CONFIG_HID_LED=m
CONFIG_HID_LENOVO=m
CONFIG_HID_LOGITECH=m
CONFIG_HID_LOGITECH_DJ=m
CONFIG_HID_LOGITECH_HIDPP=m
# CONFIG_LOGITECH_FF is not set
CONFIG_LOGIRUMBLEPAD2_FF=y
CONFIG_LOGIG940_FF=y
# CONFIG_LOGIWHEELS_FF is not set
CONFIG_HID_MAGICMOUSE=m
CONFIG_HID_MAYFLASH=m
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
CONFIG_HID_MULTITOUCH=m
# CONFIG_HID_NTRIG is not set
# CONFIG_HID_ORTEK is not set
CONFIG_HID_PANTHERLORD=m
CONFIG_PANTHERLORD_FF=y
CONFIG_HID_PENMOUNT=m
CONFIG_HID_PETALYNX=m
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PLANTRONICS is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
CONFIG_HID_SONY=m
CONFIG_SONY_FF=y
CONFIG_HID_SPEEDLINK=m
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_RMI is not set
CONFIG_HID_GREENASIA=m
CONFIG_GREENASIA_FF=y
# CONFIG_HID_HYPERV_MOUSE is not set
CONFIG_HID_SMARTJOYPLUS=m
CONFIG_SMARTJOYPLUS_FF=y
CONFIG_HID_TIVO=m
CONFIG_HID_TOPSEED=m
CONFIG_HID_THINGM=m
CONFIG_HID_THRUSTMASTER=m
CONFIG_THRUSTMASTER_FF=y
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_WACOM is not set
# CONFIG_HID_WIIMOTE is not set
CONFIG_HID_XINMO=m
# CONFIG_HID_ZEROPLUS is not set
CONFIG_HID_ZYDACRON=m
CONFIG_HID_SENSOR_HUB=m
CONFIG_HID_SENSOR_CUSTOM_SENSOR=m
CONFIG_HID_ALPS=m

#
# USB HID support
#
CONFIG_USB_HID=m
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set

#
# I2C HID support
#
# CONFIG_I2C_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
# CONFIG_USB_DEFAULT_PERSIST is not set
CONFIG_USB_DYNAMIC_MINORS=y
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_LEDS_TRIGGER_USBPORT is not set
# CONFIG_USB_MON is not set
CONFIG_USB_WUSB=y
CONFIG_USB_WUSB_CBAF=m
CONFIG_USB_WUSB_CBAF_DEBUG=y

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_XHCI_HCD=m
CONFIG_USB_XHCI_PCI=m
CONFIG_USB_XHCI_PLATFORM=m
CONFIG_USB_EHCI_HCD=m
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=m
CONFIG_USB_EHCI_HCD_PLATFORM=m
CONFIG_USB_OXU210HP_HCD=y
CONFIG_USB_ISP116X_HCD=m
CONFIG_USB_ISP1362_HCD=m
CONFIG_USB_FOTG210_HCD=y
# CONFIG_USB_MAX3421_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_HCD_PCI is not set
# CONFIG_USB_OHCI_HCD_SSB is not set
CONFIG_USB_OHCI_HCD_PLATFORM=y
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
CONFIG_USB_R8A66597_HCD=m
# CONFIG_USB_WHCI_HCD is not set
# CONFIG_USB_HWA_HCD is not set
# CONFIG_USB_HCD_BCMA is not set
CONFIG_USB_HCD_SSB=m
CONFIG_USB_HCD_TEST_MODE=y

#
# USB Device Class drivers
#
CONFIG_USB_ACM=m
CONFIG_USB_PRINTER=y
CONFIG_USB_WDM=m
CONFIG_USB_TMC=m

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
CONFIG_USB_STORAGE_DEBUG=y
CONFIG_USB_STORAGE_REALTEK=m
CONFIG_USB_STORAGE_DATAFAB=m
CONFIG_USB_STORAGE_FREECOM=m
CONFIG_USB_STORAGE_ISD200=m
CONFIG_USB_STORAGE_USBAT=m
CONFIG_USB_STORAGE_SDDR09=m
# CONFIG_USB_STORAGE_SDDR55 is not set
CONFIG_USB_STORAGE_JUMPSHOT=m
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set

#
# USB Imaging devices
#
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m
CONFIG_USBIP_CORE=m
# CONFIG_USBIP_VHCI_HCD is not set
CONFIG_USBIP_HOST=m
CONFIG_USBIP_VUDC=m
# CONFIG_USBIP_DEBUG is not set
CONFIG_USB_MUSB_HDRC=y
CONFIG_USB_MUSB_HOST=y
# CONFIG_USB_MUSB_GADGET is not set
# CONFIG_USB_MUSB_DUAL_ROLE is not set

#
# Platform Glue Layer
#

#
# MUSB DMA mode
#
CONFIG_MUSB_PIO_ONLY=y
# CONFIG_USB_DWC3 is not set
CONFIG_USB_DWC2=m
# CONFIG_USB_DWC2_HOST is not set

#
# Gadget/Dual-role mode requires USB Gadget support to be enabled
#
# CONFIG_USB_DWC2_PERIPHERAL is not set
CONFIG_USB_DWC2_DUAL_ROLE=y
CONFIG_USB_DWC2_PCI=m
# CONFIG_USB_DWC2_DEBUG is not set
CONFIG_USB_DWC2_TRACK_MISSED_SOFS=y
CONFIG_USB_CHIPIDEA=m
CONFIG_USB_CHIPIDEA_OF=m
CONFIG_USB_CHIPIDEA_PCI=m
CONFIG_USB_CHIPIDEA_UDC=y
# CONFIG_USB_CHIPIDEA_HOST is not set
# CONFIG_USB_ISP1760 is not set

#
# USB port drivers
#
CONFIG_USB_SERIAL=y
CONFIG_USB_SERIAL_CONSOLE=y
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_SIMPLE is not set
# CONFIG_USB_SERIAL_AIRCABLE is not set
CONFIG_USB_SERIAL_ARK3116=y
CONFIG_USB_SERIAL_BELKIN=m
CONFIG_USB_SERIAL_CH341=m
CONFIG_USB_SERIAL_WHITEHEAT=m
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
# CONFIG_USB_SERIAL_CP210X is not set
CONFIG_USB_SERIAL_CYPRESS_M8=y
CONFIG_USB_SERIAL_EMPEG=y
CONFIG_USB_SERIAL_FTDI_SIO=y
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IPAQ is not set
CONFIG_USB_SERIAL_IR=m
CONFIG_USB_SERIAL_EDGEPORT=y
CONFIG_USB_SERIAL_EDGEPORT_TI=y
CONFIG_USB_SERIAL_F81232=m
CONFIG_USB_SERIAL_F8153X=m
CONFIG_USB_SERIAL_GARMIN=y
# CONFIG_USB_SERIAL_IPW is not set
# CONFIG_USB_SERIAL_IUU is not set
CONFIG_USB_SERIAL_KEYSPAN_PDA=y
CONFIG_USB_SERIAL_KEYSPAN=m
CONFIG_USB_SERIAL_KLSI=m
CONFIG_USB_SERIAL_KOBIL_SCT=y
CONFIG_USB_SERIAL_MCT_U232=y
CONFIG_USB_SERIAL_METRO=y
CONFIG_USB_SERIAL_MOS7720=y
# CONFIG_USB_SERIAL_MOS7840 is not set
CONFIG_USB_SERIAL_MXUPORT=m
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=y
# CONFIG_USB_SERIAL_OTI6858 is not set
CONFIG_USB_SERIAL_QCAUX=m
# CONFIG_USB_SERIAL_QUALCOMM is not set
CONFIG_USB_SERIAL_SPCP8X5=y
CONFIG_USB_SERIAL_SAFE=y
CONFIG_USB_SERIAL_SAFE_PADDED=y
CONFIG_USB_SERIAL_SIERRAWIRELESS=y
CONFIG_USB_SERIAL_SYMBOL=y
# CONFIG_USB_SERIAL_TI is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
CONFIG_USB_SERIAL_XIRCOM=y
CONFIG_USB_SERIAL_WWAN=y
CONFIG_USB_SERIAL_OPTION=y
CONFIG_USB_SERIAL_OMNINET=m
# CONFIG_USB_SERIAL_OPTICON is not set
CONFIG_USB_SERIAL_XSENS_MT=y
CONFIG_USB_SERIAL_WISHBONE=y
# CONFIG_USB_SERIAL_SSU100 is not set
CONFIG_USB_SERIAL_QT2=m
# CONFIG_USB_SERIAL_DEBUG is not set

#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=m
CONFIG_USB_EMI26=y
CONFIG_USB_ADUTUX=y
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=y
CONFIG_USB_CYPRESS_CY7C63=m
CONFIG_USB_CYTHERM=y
CONFIG_USB_IDMOUSE=m
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
CONFIG_USB_SISUSBVGA=y
# CONFIG_USB_SISUSBVGA_CON is not set
CONFIG_USB_LD=m
# CONFIG_USB_TRANCEVIBRATOR is not set
CONFIG_USB_IOWARRIOR=m
# CONFIG_USB_TEST is not set
CONFIG_USB_EHSET_TEST_FIXTURE=y
CONFIG_USB_ISIGHTFW=m
CONFIG_USB_YUREX=m
CONFIG_USB_EZUSB_FX2=y
# CONFIG_USB_HSIC_USB3503 is not set
CONFIG_USB_HSIC_USB4604=y
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_UCSI is not set

#
# USB Physical Layer drivers
#
CONFIG_USB_PHY=y
CONFIG_NOP_USB_XCEIV=m
CONFIG_USB_GPIO_VBUS=m
CONFIG_USB_ISP1301=y
CONFIG_USB_GADGET=y
# CONFIG_USB_GADGET_DEBUG is not set
# CONFIG_USB_GADGET_DEBUG_FILES is not set
# CONFIG_USB_GADGET_DEBUG_FS is not set
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2
# CONFIG_U_SERIAL_CONSOLE is not set

#
# USB Peripheral Controller
#
# CONFIG_USB_FOTG210_UDC is not set
CONFIG_USB_GR_UDC=m
CONFIG_USB_R8A66597=m
# CONFIG_USB_PXA27X is not set
# CONFIG_USB_MV_UDC is not set
# CONFIG_USB_MV_U3D is not set
# CONFIG_USB_M66592 is not set
CONFIG_USB_BDC_UDC=m

#
# Platform Support
#
CONFIG_USB_BDC_PCI=m
# CONFIG_USB_AMD5536UDC is not set
CONFIG_USB_NET2272=m
CONFIG_USB_NET2272_DMA=y
CONFIG_USB_NET2280=m
CONFIG_USB_GOKU=m
CONFIG_USB_EG20T=m
# CONFIG_USB_GADGET_XILINX is not set
CONFIG_USB_DUMMY_HCD=m
CONFIG_USB_LIBCOMPOSITE=y
CONFIG_USB_F_ACM=y
CONFIG_USB_F_SS_LB=y
CONFIG_USB_U_SERIAL=y
CONFIG_USB_U_ETHER=y
CONFIG_USB_F_SERIAL=m
CONFIG_USB_F_OBEX=m
CONFIG_USB_F_NCM=y
CONFIG_USB_F_ECM=m
CONFIG_USB_F_PHONET=m
CONFIG_USB_F_SUBSET=m
CONFIG_USB_F_RNDIS=m
CONFIG_USB_F_MASS_STORAGE=m
CONFIG_USB_F_FS=m
CONFIG_USB_F_UAC1=m
CONFIG_USB_F_MIDI=m
CONFIG_USB_F_HID=m
CONFIG_USB_CONFIGFS=y
# CONFIG_USB_CONFIGFS_SERIAL is not set
CONFIG_USB_CONFIGFS_ACM=y
# CONFIG_USB_CONFIGFS_OBEX is not set
CONFIG_USB_CONFIGFS_NCM=y
# CONFIG_USB_CONFIGFS_ECM is not set
# CONFIG_USB_CONFIGFS_ECM_SUBSET is not set
# CONFIG_USB_CONFIGFS_RNDIS is not set
# CONFIG_USB_CONFIGFS_EEM is not set
CONFIG_USB_CONFIGFS_PHONET=y
# CONFIG_USB_CONFIGFS_MASS_STORAGE is not set
CONFIG_USB_CONFIGFS_F_LB_SS=y
# CONFIG_USB_CONFIGFS_F_FS is not set
CONFIG_USB_CONFIGFS_F_UAC1=y
# CONFIG_USB_CONFIGFS_F_UAC2 is not set
# CONFIG_USB_CONFIGFS_F_MIDI is not set
# CONFIG_USB_CONFIGFS_F_HID is not set
# CONFIG_USB_CONFIGFS_F_UVC is not set
# CONFIG_USB_CONFIGFS_F_PRINTER is not set
CONFIG_USB_ZERO=m
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_ETH is not set
CONFIG_USB_G_NCM=m
CONFIG_USB_GADGETFS=m
CONFIG_USB_FUNCTIONFS=m
CONFIG_USB_FUNCTIONFS_ETH=y
CONFIG_USB_FUNCTIONFS_RNDIS=y
CONFIG_USB_FUNCTIONFS_GENERIC=y
CONFIG_USB_MASS_STORAGE=m
CONFIG_USB_G_SERIAL=m
CONFIG_USB_MIDI_GADGET=m
# CONFIG_USB_G_PRINTER is not set
# CONFIG_USB_CDC_COMPOSITE is not set
# CONFIG_USB_G_NOKIA is not set
# CONFIG_USB_G_ACM_MS is not set
CONFIG_USB_G_MULTI=m
CONFIG_USB_G_MULTI_RNDIS=y
CONFIG_USB_G_MULTI_CDC=y
CONFIG_USB_G_HID=m
# CONFIG_USB_G_DBGP is not set
# CONFIG_USB_G_WEBCAM is not set
# CONFIG_USB_LED_TRIG is not set
# CONFIG_USB_ULPI_BUS is not set
CONFIG_UWB=y
CONFIG_UWB_HWA=m
# CONFIG_UWB_WHCI is not set
CONFIG_UWB_I1480U=m
CONFIG_MMC=y
# CONFIG_MMC_DEBUG is not set
CONFIG_PWRSEQ_EMMC=y
CONFIG_PWRSEQ_SIMPLE=m
# CONFIG_MMC_BLOCK is not set
CONFIG_SDIO_UART=y
# CONFIG_MMC_TEST is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
CONFIG_MMC_SDHCI=m
# CONFIG_MMC_SDHCI_PCI is not set
CONFIG_MMC_SDHCI_ACPI=m
CONFIG_MMC_SDHCI_PLTFM=m
CONFIG_MMC_SDHCI_OF_ARASAN=m
CONFIG_MMC_SDHCI_OF_AT91=m
CONFIG_MMC_SDHCI_CADENCE=m
# CONFIG_MMC_SDHCI_F_SDH30 is not set
CONFIG_MMC_WBSD=m
# CONFIG_MMC_TIFM_SD is not set
CONFIG_MMC_SPI=y
CONFIG_MMC_SDRICOH_CS=m
CONFIG_MMC_CB710=m
CONFIG_MMC_VIA_SDMMC=y
# CONFIG_MMC_VUB300 is not set
# CONFIG_MMC_USHC is not set
CONFIG_MMC_USDHI6ROL0=m
CONFIG_MMC_REALTEK_PCI=m
CONFIG_MMC_REALTEK_USB=m
CONFIG_MMC_TOSHIBA_PCI=y
# CONFIG_MMC_MTK is not set
CONFIG_MEMSTICK=y
# CONFIG_MEMSTICK_DEBUG is not set

#
# MemoryStick drivers
#
CONFIG_MEMSTICK_UNSAFE_RESUME=y
# CONFIG_MSPRO_BLOCK is not set
CONFIG_MS_BLOCK=m

#
# MemoryStick Host Controller Drivers
#
CONFIG_MEMSTICK_TIFM_MS=m
CONFIG_MEMSTICK_JMICRON_38X=y
# CONFIG_MEMSTICK_R592 is not set
CONFIG_MEMSTICK_REALTEK_PCI=m
CONFIG_MEMSTICK_REALTEK_USB=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_CLASS_FLASH=y

#
# LED drivers
#
CONFIG_LEDS_88PM860X=m
# CONFIG_LEDS_BCM6328 is not set
CONFIG_LEDS_BCM6358=m
CONFIG_LEDS_LM3530=y
CONFIG_LEDS_LM3533=m
CONFIG_LEDS_LM3642=m
CONFIG_LEDS_PCA9532=y
CONFIG_LEDS_PCA9532_GPIO=y
# CONFIG_LEDS_GPIO is not set
CONFIG_LEDS_LP3944=y
# CONFIG_LEDS_LP3952 is not set
CONFIG_LEDS_LP55XX_COMMON=y
# CONFIG_LEDS_LP5521 is not set
CONFIG_LEDS_LP5523=y
CONFIG_LEDS_LP5562=y
CONFIG_LEDS_LP8501=m
# CONFIG_LEDS_LP8860 is not set
# CONFIG_LEDS_CLEVO_MAIL is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
CONFIG_LEDS_WM8350=y
CONFIG_LEDS_DA9052=m
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_PWM is not set
# CONFIG_LEDS_REGULATOR is not set
# CONFIG_LEDS_BD2802 is not set
CONFIG_LEDS_INTEL_SS4200=m
CONFIG_LEDS_LT3593=m
# CONFIG_LEDS_ADP5520 is not set
# CONFIG_LEDS_DELL_NETBOOKS is not set
CONFIG_LEDS_MC13783=m
# CONFIG_LEDS_TCA6507 is not set
CONFIG_LEDS_TLC591XX=y
CONFIG_LEDS_MAX8997=m
CONFIG_LEDS_LM355x=y
# CONFIG_LEDS_OT200 is not set
CONFIG_LEDS_MENF21BMC=m
# CONFIG_LEDS_KTD2692 is not set
# CONFIG_LEDS_IS31FL319X is not set
CONFIG_LEDS_IS31FL32XX=m

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
CONFIG_LEDS_BLINKM=y
CONFIG_LEDS_SYSCON=y
CONFIG_LEDS_USER=y
CONFIG_LEDS_NIC78BX=y

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
# CONFIG_LEDS_TRIGGER_TIMER is not set
CONFIG_LEDS_TRIGGER_ONESHOT=m
# CONFIG_LEDS_TRIGGER_DISK is not set
CONFIG_LEDS_TRIGGER_MTD=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
CONFIG_LEDS_TRIGGER_CPU=y
# CONFIG_LEDS_TRIGGER_GPIO is not set
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y

#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_TRANSIENT=y
CONFIG_LEDS_TRIGGER_CAMERA=y
# CONFIG_LEDS_TRIGGER_PANIC is not set
CONFIG_ACCESSIBILITY=y
# CONFIG_A11Y_BRAILLE_CONSOLE is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_EDAC=y
CONFIG_EDAC_LEGACY_SYSFS=y
CONFIG_EDAC_DEBUG=y
CONFIG_EDAC_MM_EDAC=m
CONFIG_EDAC_AMD76X=m
CONFIG_EDAC_E7XXX=m
CONFIG_EDAC_E752X=m
CONFIG_EDAC_I82875P=m
# CONFIG_EDAC_I82975X is not set
# CONFIG_EDAC_I3000 is not set
# CONFIG_EDAC_I3200 is not set
CONFIG_EDAC_IE31200=m
# CONFIG_EDAC_X38 is not set
CONFIG_EDAC_I5400=m
CONFIG_EDAC_I82860=m
# CONFIG_EDAC_R82600 is not set
CONFIG_EDAC_I5000=m
CONFIG_EDAC_I5100=m
# CONFIG_EDAC_I7300 is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
# CONFIG_RTC_CLASS is not set
CONFIG_DMADEVICES=y
CONFIG_DMADEVICES_DEBUG=y
CONFIG_DMADEVICES_VDEBUG=y

#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_ACPI=y
CONFIG_DMA_OF=y
CONFIG_FSL_EDMA=m
CONFIG_INTEL_IDMA64=y
CONFIG_PCH_DMA=m
# CONFIG_TIMB_DMA is not set
CONFIG_QCOM_HIDMA_MGMT=m
CONFIG_QCOM_HIDMA=m
CONFIG_DW_DMAC_CORE=y
CONFIG_DW_DMAC=m
# CONFIG_DW_DMAC_PCI is not set
CONFIG_HSU_DMA=y

#
# DMA Clients
#
CONFIG_ASYNC_TX_DMA=y
# CONFIG_DMATEST is not set

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
CONFIG_SW_SYNC=y
# CONFIG_AUXDISPLAY is not set
CONFIG_UIO=y
CONFIG_UIO_CIF=y
CONFIG_UIO_PDRV_GENIRQ=m
CONFIG_UIO_DMEM_GENIRQ=m
CONFIG_UIO_AEC=y
# CONFIG_UIO_SERCOS3 is not set
# CONFIG_UIO_PCI_GENERIC is not set
CONFIG_UIO_NETX=y
# CONFIG_UIO_PRUSS is not set
CONFIG_UIO_MF624=y
CONFIG_UIO_HV_GENERIC=m
# CONFIG_VIRT_DRIVERS is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
CONFIG_HYPERV=m
# CONFIG_HYPERV_UTILS is not set
CONFIG_HYPERV_BALLOON=m
CONFIG_STAGING=y
CONFIG_PRISM2_USB=m
# CONFIG_COMEDI is not set
# CONFIG_RTL8192U is not set
CONFIG_RTLLIB=m
# CONFIG_RTLLIB_CRYPTO_CCMP is not set
# CONFIG_RTLLIB_CRYPTO_TKIP is not set
CONFIG_RTLLIB_CRYPTO_WEP=m
CONFIG_RTL8192E=m
# CONFIG_R8712U is not set
CONFIG_R8188EU=m
CONFIG_88EU_AP_MODE=y
CONFIG_RTS5208=m

#
# IIO staging drivers
#

#
# Accelerometers
#
CONFIG_ADIS16201=m
CONFIG_ADIS16203=m
# CONFIG_ADIS16209 is not set
# CONFIG_ADIS16240 is not set

#
# Analog to digital converters
#
# CONFIG_AD7606 is not set
CONFIG_AD7780=m
CONFIG_AD7816=m
CONFIG_AD7192=m
CONFIG_AD7280=m

#
# Analog digital bi-direction converters
#
CONFIG_ADT7316=m
# CONFIG_ADT7316_SPI is not set
CONFIG_ADT7316_I2C=m

#
# Capacitance to digital converters
#
# CONFIG_AD7150 is not set
CONFIG_AD7152=m
CONFIG_AD7746=m

#
# Direct Digital Synthesis
#
# CONFIG_AD9832 is not set
CONFIG_AD9834=m

#
# Digital gyroscope sensors
#
CONFIG_ADIS16060=m

#
# Network Analyzer, Impedance Converters
#
CONFIG_AD5933=m

#
# Light sensors
#
CONFIG_SENSORS_ISL29028=m
CONFIG_TSL2x7x=m

#
# Active energy metering IC
#
CONFIG_ADE7753=m
CONFIG_ADE7754=m
CONFIG_ADE7758=m
CONFIG_ADE7759=m
CONFIG_ADE7854=m
CONFIG_ADE7854_I2C=m
# CONFIG_ADE7854_SPI is not set

#
# Resolver to digital converters
#
CONFIG_AD2S90=m
# CONFIG_AD2S1200 is not set
CONFIG_AD2S1210=m

#
# Triggers - standalone
#
# CONFIG_FB_SM750 is not set
# CONFIG_FB_XGI is not set

#
# Speakup console speech
#
CONFIG_SPEAKUP=y
CONFIG_SPEAKUP_SYNTH_ACNTSA=m
CONFIG_SPEAKUP_SYNTH_APOLLO=y
# CONFIG_SPEAKUP_SYNTH_AUDPTR is not set
CONFIG_SPEAKUP_SYNTH_BNS=m
CONFIG_SPEAKUP_SYNTH_DECTLK=m
CONFIG_SPEAKUP_SYNTH_DECEXT=m
# CONFIG_SPEAKUP_SYNTH_LTLK is not set
CONFIG_SPEAKUP_SYNTH_SOFT=m
# CONFIG_SPEAKUP_SYNTH_SPKOUT is not set
CONFIG_SPEAKUP_SYNTH_TXPRT=m
# CONFIG_SPEAKUP_SYNTH_DUMMY is not set
CONFIG_STAGING_MEDIA=y
# CONFIG_DVB_CXD2099 is not set

#
# Android
#
# CONFIG_STAGING_BOARD is not set
# CONFIG_LTE_GDM724X is not set
CONFIG_MTD_SPINAND_MT29F=m
# CONFIG_MTD_SPINAND_ONDIEECC is not set
CONFIG_LNET=m
CONFIG_LNET_MAX_PAYLOAD=1048576
CONFIG_LNET_SELFTEST=m
CONFIG_LUSTRE_FS=m
CONFIG_LUSTRE_OBD_MAX_IOCTL_BUFFER=8192
CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK=y
# CONFIG_DGNC is not set
# CONFIG_GS_FPGABOOT is not set
CONFIG_COMMON_CLK_XLNX_CLKWZRD=m
CONFIG_FB_TFT=m
CONFIG_FB_TFT_AGM1264K_FL=m
CONFIG_FB_TFT_BD663474=m
CONFIG_FB_TFT_HX8340BN=m
# CONFIG_FB_TFT_HX8347D is not set
CONFIG_FB_TFT_HX8353D=m
CONFIG_FB_TFT_HX8357D=m
CONFIG_FB_TFT_ILI9163=m
CONFIG_FB_TFT_ILI9320=m
CONFIG_FB_TFT_ILI9325=m
CONFIG_FB_TFT_ILI9340=m
CONFIG_FB_TFT_ILI9341=m
CONFIG_FB_TFT_ILI9481=m
CONFIG_FB_TFT_ILI9486=m
CONFIG_FB_TFT_PCD8544=m
CONFIG_FB_TFT_RA8875=m
# CONFIG_FB_TFT_S6D02A1 is not set
CONFIG_FB_TFT_S6D1121=m
CONFIG_FB_TFT_SSD1289=m
CONFIG_FB_TFT_SSD1305=m
CONFIG_FB_TFT_SSD1306=m
CONFIG_FB_TFT_SSD1325=m
CONFIG_FB_TFT_SSD1331=m
# CONFIG_FB_TFT_SSD1351 is not set
# CONFIG_FB_TFT_ST7735R is not set
CONFIG_FB_TFT_ST7789V=m
CONFIG_FB_TFT_TINYLCD=m
# CONFIG_FB_TFT_TLS8204 is not set
# CONFIG_FB_TFT_UC1611 is not set
# CONFIG_FB_TFT_UC1701 is not set
# CONFIG_FB_TFT_UPD161704 is not set
CONFIG_FB_TFT_WATTEROTT=m
# CONFIG_FB_FLEX is not set
CONFIG_FB_TFT_FBTFT_DEVICE=m
CONFIG_WILC1000=m
# CONFIG_WILC1000_SDIO is not set
CONFIG_WILC1000_SPI=m
# CONFIG_MOST is not set

#
# Old ISDN4Linux (deprecated)
#
CONFIG_KS7010=y
# CONFIG_GREYBUS is not set
CONFIG_X86_PLATFORM_DEVICES=y
# CONFIG_ACER_WMI is not set
CONFIG_ACERHDF=y
CONFIG_ALIENWARE_WMI=m
# CONFIG_ASUS_LAPTOP is not set
CONFIG_DELL_SMBIOS=m
# CONFIG_DELL_LAPTOP is not set
CONFIG_DELL_WMI=m
# CONFIG_DELL_WMI_AIO is not set
CONFIG_DELL_SMO8800=y
# CONFIG_DELL_RBTN is not set
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_AMILO_RFKILL is not set
# CONFIG_TC1100_WMI is not set
# CONFIG_HP_ACCEL is not set
CONFIG_HP_WIRELESS=y
CONFIG_HP_WMI=m
# CONFIG_MSI_LAPTOP is not set
CONFIG_PANASONIC_LAPTOP=m
# CONFIG_COMPAL_LAPTOP is not set
CONFIG_SONY_LAPTOP=m
CONFIG_SONYPI_COMPAT=y
# CONFIG_IDEAPAD_LAPTOP is not set
CONFIG_SURFACE3_WMI=m
CONFIG_THINKPAD_ACPI=m
# CONFIG_THINKPAD_ACPI_ALSA_SUPPORT is not set
# CONFIG_THINKPAD_ACPI_DEBUGFACILITIES is not set
# CONFIG_THINKPAD_ACPI_DEBUG is not set
CONFIG_THINKPAD_ACPI_UNSAFE_LEDS=y
# CONFIG_THINKPAD_ACPI_VIDEO is not set
# CONFIG_THINKPAD_ACPI_HOTKEY_POLL is not set
CONFIG_SENSORS_HDAPS=y
CONFIG_INTEL_MENLOW=m
# CONFIG_EEEPC_LAPTOP is not set
CONFIG_ASUS_WMI=m
# CONFIG_ASUS_NB_WMI is not set
# CONFIG_EEEPC_WMI is not set
CONFIG_ASUS_WIRELESS=y
CONFIG_ACPI_WMI=m
CONFIG_MSI_WMI=m
CONFIG_TOPSTAR_LAPTOP=m
# CONFIG_ACPI_TOSHIBA is not set
CONFIG_TOSHIBA_BT_RFKILL=m
CONFIG_TOSHIBA_HAPS=y
CONFIG_TOSHIBA_WMI=m
CONFIG_ACPI_CMPC=m
CONFIG_INTEL_HID_EVENT=m
CONFIG_INTEL_VBTN=m
CONFIG_INTEL_IPS=m
# CONFIG_INTEL_PMC_CORE is not set
# CONFIG_IBM_RTL is not set
CONFIG_SAMSUNG_LAPTOP=m
CONFIG_MXM_WMI=m
CONFIG_INTEL_OAKTRAIL=m
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_APPLE_GMUX is not set
CONFIG_INTEL_RST=m
CONFIG_INTEL_SMARTCONNECT=m
# CONFIG_PVPANIC is not set
CONFIG_INTEL_PMC_IPC=m
CONFIG_SURFACE_PRO3_BUTTON=y
CONFIG_INTEL_PUNIT_IPC=y
# CONFIG_MLX_CPLD_PLATFORM is not set
CONFIG_CHROME_PLATFORMS=y
CONFIG_CHROMEOS_LAPTOP=y
CONFIG_CHROMEOS_PSTORE=y
# CONFIG_CROS_EC_CHARDEV is not set
CONFIG_CROS_EC_LPC=m
CONFIG_CROS_EC_PROTO=y
CONFIG_CROS_KBD_LED_BACKLIGHT=m
CONFIG_CLKDEV_LOOKUP=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y

#
# Common Clock Framework
#
CONFIG_COMMON_CLK_MAX77686=y
CONFIG_COMMON_CLK_SI5351=y
CONFIG_COMMON_CLK_SI514=m
# CONFIG_COMMON_CLK_SI570 is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CDCE925 is not set
CONFIG_COMMON_CLK_CS2000_CP=y
CONFIG_CLK_TWL6040=m
# CONFIG_COMMON_CLK_NXP is not set
# CONFIG_COMMON_CLK_PALMAS is not set
CONFIG_COMMON_CLK_PWM=m
# CONFIG_COMMON_CLK_PXA is not set
# CONFIG_COMMON_CLK_PIC32 is not set
# CONFIG_COMMON_CLK_MT2701 is not set
# CONFIG_COMMON_CLK_MT2701_MMSYS is not set
# CONFIG_COMMON_CLK_MT2701_IMGSYS is not set
# CONFIG_COMMON_CLK_MT2701_VDECSYS is not set
# CONFIG_COMMON_CLK_MT2701_HIFSYS is not set
# CONFIG_COMMON_CLK_MT2701_ETHSYS is not set
# CONFIG_COMMON_CLK_MT2701_BDPSYS is not set

#
# Hardware Spinlock drivers
#

#
# Clock Source drivers
#
CONFIG_CLKSRC_I8253=y
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# CONFIG_ATMEL_PIT is not set
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
CONFIG_MAILBOX=y
# CONFIG_PLATFORM_MHU is not set
# CONFIG_PCC is not set
# CONFIG_ALTERA_MBOX is not set
CONFIG_MAILBOX_TEST=m
CONFIG_IOMMU_SUPPORT=y

#
# Generic IOMMU Pagetable Support
#
# CONFIG_INTEL_IOMMU is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set

#
# Rpmsg drivers
#

#
# SOC (System On Chip) specific Drivers
#

#
# Broadcom SoC drivers
#
# CONFIG_SUNXI_SRAM is not set
CONFIG_SOC_TI=y
CONFIG_PM_DEVFREQ=y

#
# DEVFREQ Governors
#
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y
CONFIG_DEVFREQ_GOV_PERFORMANCE=m
# CONFIG_DEVFREQ_GOV_POWERSAVE is not set
CONFIG_DEVFREQ_GOV_USERSPACE=m
CONFIG_DEVFREQ_GOV_PASSIVE=y

#
# DEVFREQ Drivers
#
CONFIG_PM_DEVFREQ_EVENT=y
CONFIG_EXTCON=m

#
# Extcon Device Drivers
#
CONFIG_EXTCON_ADC_JACK=m
CONFIG_EXTCON_AXP288=m
CONFIG_EXTCON_GPIO=m
# CONFIG_EXTCON_MAX14577 is not set
CONFIG_EXTCON_MAX3355=m
# CONFIG_EXTCON_MAX8997 is not set
# CONFIG_EXTCON_PALMAS is not set
CONFIG_EXTCON_QCOM_SPMI_MISC=m
# CONFIG_EXTCON_RT8973A is not set
# CONFIG_EXTCON_SM5502 is not set
# CONFIG_EXTCON_USB_GPIO is not set
CONFIG_MEMORY=y
CONFIG_IIO=m
CONFIG_IIO_BUFFER=y
CONFIG_IIO_BUFFER_CB=m
CONFIG_IIO_KFIFO_BUF=m
CONFIG_IIO_TRIGGERED_BUFFER=m
CONFIG_IIO_CONFIGFS=m
CONFIG_IIO_TRIGGER=y
CONFIG_IIO_CONSUMERS_PER_TRIGGER=2
CONFIG_IIO_SW_DEVICE=m
# CONFIG_IIO_SW_TRIGGER is not set
CONFIG_IIO_TRIGGERED_EVENT=m

#
# Accelerometers
#
# CONFIG_BMA180 is not set
# CONFIG_BMA220 is not set
# CONFIG_BMC150_ACCEL is not set
CONFIG_DA280=m
# CONFIG_DA311 is not set
CONFIG_DMARD06=m
# CONFIG_DMARD09 is not set
CONFIG_DMARD10=m
CONFIG_HID_SENSOR_ACCEL_3D=m
CONFIG_IIO_ST_ACCEL_3AXIS=m
CONFIG_IIO_ST_ACCEL_I2C_3AXIS=m
CONFIG_IIO_ST_ACCEL_SPI_3AXIS=m
CONFIG_KXSD9=m
CONFIG_KXSD9_SPI=m
CONFIG_KXSD9_I2C=m
CONFIG_KXCJK1013=m
CONFIG_MC3230=m
CONFIG_MMA7455=m
CONFIG_MMA7455_I2C=m
CONFIG_MMA7455_SPI=m
CONFIG_MMA7660=m
CONFIG_MMA8452=m
CONFIG_MMA9551_CORE=m
# CONFIG_MMA9551 is not set
CONFIG_MMA9553=m
CONFIG_MXC4005=m
CONFIG_MXC6255=m
# CONFIG_SCA3000 is not set
CONFIG_STK8312=m
CONFIG_STK8BA50=m

#
# Analog to digital converters
#
CONFIG_AD_SIGMA_DELTA=m
CONFIG_AD7266=m
CONFIG_AD7291=m
CONFIG_AD7298=m
CONFIG_AD7476=m
CONFIG_AD7766=m
CONFIG_AD7791=m
# CONFIG_AD7793 is not set
CONFIG_AD7887=m
CONFIG_AD7923=m
# CONFIG_AD799X is not set
CONFIG_AXP288_ADC=m
# CONFIG_CC10001_ADC is not set
# CONFIG_DA9150_GPADC is not set
CONFIG_ENVELOPE_DETECTOR=m
CONFIG_HI8435=m
CONFIG_LTC2485=m
CONFIG_MAX1027=m
CONFIG_MAX1363=m
CONFIG_MCP320X=m
CONFIG_MCP3422=m
# CONFIG_MEN_Z188_ADC is not set
CONFIG_NAU7802=m
CONFIG_PALMAS_GPADC=m
CONFIG_QCOM_SPMI_IADC=m
CONFIG_QCOM_SPMI_VADC=m
CONFIG_TI_ADC081C=m
CONFIG_TI_ADC0832=m
CONFIG_TI_ADC12138=m
CONFIG_TI_ADC128S052=m
# CONFIG_TI_ADC161S626 is not set
CONFIG_TI_ADS1015=m
CONFIG_TI_ADS8688=m
# CONFIG_VF610_ADC is not set
CONFIG_VIPERBOARD_ADC=m

#
# Amplifiers
#
CONFIG_AD8366=m

#
# Chemical Sensors
#
CONFIG_ATLAS_PH_SENSOR=m
# CONFIG_IAQCORE is not set
CONFIG_VZ89X=m
# CONFIG_IIO_CROS_EC_SENSORS_CORE is not set

#
# Hid Sensor IIO Common
#
CONFIG_HID_SENSOR_IIO_COMMON=m
CONFIG_HID_SENSOR_IIO_TRIGGER=m
CONFIG_IIO_MS_SENSORS_I2C=m

#
# SSP Sensor Common
#
# CONFIG_IIO_SSP_SENSORHUB is not set
CONFIG_IIO_ST_SENSORS_I2C=m
CONFIG_IIO_ST_SENSORS_SPI=m
CONFIG_IIO_ST_SENSORS_CORE=m

#
# Counters
#

#
# Digital to analog converters
#
CONFIG_AD5064=m
CONFIG_AD5360=m
CONFIG_AD5380=m
CONFIG_AD5421=m
CONFIG_AD5446=m
CONFIG_AD5449=m
CONFIG_AD5592R_BASE=m
# CONFIG_AD5592R is not set
CONFIG_AD5593R=m
CONFIG_AD5504=m
CONFIG_AD5624R_SPI=m
CONFIG_AD5686=m
CONFIG_AD5755=m
# CONFIG_AD5761 is not set
# CONFIG_AD5764 is not set
CONFIG_AD5791=m
CONFIG_AD7303=m
CONFIG_AD8801=m
CONFIG_DPOT_DAC=m
CONFIG_M62332=m
CONFIG_MAX517=m
# CONFIG_MAX5821 is not set
CONFIG_MCP4725=m
# CONFIG_MCP4922 is not set
CONFIG_VF610_DAC=m

#
# IIO dummy driver
#
# CONFIG_IIO_SIMPLE_DUMMY is not set

#
# Frequency Synthesizers DDS/PLL
#

#
# Clock Generator/Distribution
#
# CONFIG_AD9523 is not set

#
# Phase-Locked Loop (PLL) frequency synthesizers
#
CONFIG_ADF4350=m

#
# Digital gyroscope sensors
#
CONFIG_ADIS16080=m
CONFIG_ADIS16130=m
CONFIG_ADIS16136=m
# CONFIG_ADIS16260 is not set
# CONFIG_ADXRS450 is not set
CONFIG_BMG160=m
CONFIG_BMG160_I2C=m
CONFIG_BMG160_SPI=m
# CONFIG_HID_SENSOR_GYRO_3D is not set
CONFIG_MPU3050=m
CONFIG_MPU3050_I2C=m
# CONFIG_IIO_ST_GYRO_3AXIS is not set
# CONFIG_ITG3200 is not set

#
# Health Sensors
#

#
# Heart Rate Monitors
#
# CONFIG_AFE4403 is not set
# CONFIG_AFE4404 is not set
CONFIG_MAX30100=m

#
# Humidity sensors
#
CONFIG_AM2315=m
CONFIG_DHT11=m
CONFIG_HDC100X=m
# CONFIG_HTS221 is not set
# CONFIG_HTU21 is not set
CONFIG_SI7005=m
CONFIG_SI7020=m

#
# Inertial measurement units
#
# CONFIG_ADIS16400 is not set
# CONFIG_ADIS16480 is not set
CONFIG_BMI160=m
# CONFIG_BMI160_I2C is not set
CONFIG_BMI160_SPI=m
CONFIG_KMX61=m
CONFIG_INV_MPU6050_IIO=m
# CONFIG_INV_MPU6050_I2C is not set
CONFIG_INV_MPU6050_SPI=m
CONFIG_IIO_ADIS_LIB=m
CONFIG_IIO_ADIS_LIB_BUFFER=y

#
# Light sensors
#
CONFIG_ACPI_ALS=m
CONFIG_ADJD_S311=m
# CONFIG_AL3320A is not set
CONFIG_APDS9300=m
CONFIG_APDS9960=m
CONFIG_BH1750=m
CONFIG_BH1780=m
# CONFIG_CM32181 is not set
CONFIG_CM3232=m
CONFIG_CM3323=m
CONFIG_CM36651=m
# CONFIG_GP2AP020A00F is not set
# CONFIG_SENSORS_ISL29018 is not set
CONFIG_ISL29125=m
# CONFIG_HID_SENSOR_ALS is not set
CONFIG_HID_SENSOR_PROX=m
CONFIG_JSA1212=m
CONFIG_RPR0521=m
CONFIG_SENSORS_LM3533=m
# CONFIG_LTR501 is not set
CONFIG_MAX44000=m
CONFIG_OPT3001=m
CONFIG_PA12203001=m
CONFIG_SI1145=m
CONFIG_STK3310=m
# CONFIG_TCS3414 is not set
CONFIG_TCS3472=m
# CONFIG_SENSORS_TSL2563 is not set
CONFIG_TSL2583=m
# CONFIG_TSL4531 is not set
CONFIG_US5182D=m
# CONFIG_VCNL4000 is not set
CONFIG_VEML6070=m

#
# Magnetometer sensors
#
CONFIG_AK8974=m
CONFIG_AK8975=m
CONFIG_AK09911=m
CONFIG_BMC150_MAGN=m
CONFIG_BMC150_MAGN_I2C=m
CONFIG_BMC150_MAGN_SPI=m
CONFIG_MAG3110=m
CONFIG_HID_SENSOR_MAGNETOMETER_3D=m
# CONFIG_MMC35240 is not set
CONFIG_IIO_ST_MAGN_3AXIS=m
CONFIG_IIO_ST_MAGN_I2C_3AXIS=m
CONFIG_IIO_ST_MAGN_SPI_3AXIS=m
CONFIG_SENSORS_HMC5843=m
CONFIG_SENSORS_HMC5843_I2C=m
CONFIG_SENSORS_HMC5843_SPI=m

#
# Inclinometer sensors
#
CONFIG_HID_SENSOR_INCLINOMETER_3D=m
# CONFIG_HID_SENSOR_DEVICE_ROTATION is not set

#
# Triggers - standalone
#
CONFIG_IIO_INTERRUPT_TRIGGER=m
# CONFIG_IIO_SYSFS_TRIGGER is not set

#
# Digital potentiometers
#
CONFIG_DS1803=m
CONFIG_MAX5487=m
# CONFIG_MCP4131 is not set
CONFIG_MCP4531=m
CONFIG_TPL0102=m

#
# Digital potentiostats
#
CONFIG_LMP91000=m

#
# Pressure sensors
#
# CONFIG_ABP060MG is not set
CONFIG_BMP280=m
CONFIG_BMP280_I2C=m
CONFIG_BMP280_SPI=m
CONFIG_HID_SENSOR_PRESS=m
CONFIG_HP03=m
CONFIG_MPL115=m
# CONFIG_MPL115_I2C is not set
CONFIG_MPL115_SPI=m
CONFIG_MPL3115=m
CONFIG_MS5611=m
CONFIG_MS5611_I2C=m
# CONFIG_MS5611_SPI is not set
CONFIG_MS5637=m
CONFIG_IIO_ST_PRESS=m
CONFIG_IIO_ST_PRESS_I2C=m
CONFIG_IIO_ST_PRESS_SPI=m
CONFIG_T5403=m
CONFIG_HP206C=m
# CONFIG_ZPA2326 is not set

#
# Lightning sensors
#
CONFIG_AS3935=m

#
# Proximity sensors
#
# CONFIG_LIDAR_LITE_V2 is not set
CONFIG_SX9500=m

#
# Temperature sensors
#
CONFIG_MAXIM_THERMOCOUPLE=m
# CONFIG_MLX90614 is not set
CONFIG_TMP006=m
CONFIG_TSYS01=m
CONFIG_TSYS02D=m
CONFIG_NTB=y
CONFIG_NTB_PINGPONG=m
CONFIG_NTB_TOOL=y
CONFIG_NTB_PERF=y
# CONFIG_NTB_TRANSPORT is not set
CONFIG_VME_BUS=y

#
# VME Bridge Drivers
#
CONFIG_VME_CA91CX42=m
CONFIG_VME_TSI148=m
CONFIG_VME_FAKE=m

#
# VME Board Drivers
#
CONFIG_VMIVME_7805=m

#
# VME Device Drivers
#
# CONFIG_VME_USER is not set
CONFIG_VME_PIO2=y
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
# CONFIG_PWM_ATMEL_HLCDC_PWM is not set
CONFIG_PWM_CROS_EC=m
# CONFIG_PWM_FSL_FTM is not set
CONFIG_PWM_LP3943=m
CONFIG_PWM_LPSS=m
# CONFIG_PWM_LPSS_PCI is not set
CONFIG_PWM_LPSS_PLATFORM=m
# CONFIG_PWM_PCA9685 is not set
CONFIG_PWM_STMPE=y
CONFIG_IRQCHIP=y
CONFIG_ARM_GIC_MAX_NR=1
CONFIG_IPACK_BUS=m
CONFIG_BOARD_TPCI200=m
CONFIG_SERIAL_IPOCTAL=m
CONFIG_RESET_CONTROLLER=y
# CONFIG_RESET_ATH79 is not set
# CONFIG_RESET_BERLIN is not set
# CONFIG_RESET_LPC18XX is not set
# CONFIG_RESET_MESON is not set
# CONFIG_RESET_PISTACHIO is not set
# CONFIG_RESET_SOCFPGA is not set
# CONFIG_RESET_STM32 is not set
# CONFIG_RESET_SUNXI is not set
CONFIG_TI_SYSCON_RESET=m
# CONFIG_RESET_ZYNQ is not set
# CONFIG_RESET_TEGRA_BPMP is not set
# CONFIG_FMC is not set

#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
# CONFIG_PHY_PXA_28NM_HSIC is not set
CONFIG_PHY_PXA_28NM_USB2=m
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_PHY_SAMSUNG_USB2 is not set
# CONFIG_POWERCAP is not set
CONFIG_MCB=m
CONFIG_MCB_PCI=m
# CONFIG_MCB_LPC is not set

#
# Performance monitor support
#
CONFIG_RAS=y
CONFIG_THUNDERBOLT=m

#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_LIBNVDIMM is not set
CONFIG_NVMEM=y
CONFIG_STM=y
# CONFIG_STM_DUMMY is not set
# CONFIG_STM_SOURCE_CONSOLE is not set
CONFIG_STM_SOURCE_HEARTBEAT=m
# CONFIG_STM_SOURCE_FTRACE is not set
CONFIG_INTEL_TH=m
# CONFIG_INTEL_TH_PCI is not set
# CONFIG_INTEL_TH_GTH is not set
CONFIG_INTEL_TH_STH=m
CONFIG_INTEL_TH_MSU=m
CONFIG_INTEL_TH_PTI=m
CONFIG_INTEL_TH_DEBUG=y

#
# FPGA Configuration Support
#
# CONFIG_FPGA is not set

#
# Firmware Drivers
#
# CONFIG_ARM_SCPI_PROTOCOL is not set
CONFIG_EDD=m
CONFIG_EDD_OFF=y
CONFIG_FIRMWARE_MEMMAP=y
# CONFIG_DELL_RBU is not set
CONFIG_DCDBAS=m
# CONFIG_DMIID is not set
CONFIG_DMI_SYSFS=m
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
CONFIG_ISCSI_IBFT_FIND=y
# CONFIG_FW_CFG_SYSFS is not set
CONFIG_GOOGLE_FIRMWARE=y

#
# Google Firmware Drivers
#
CONFIG_GOOGLE_MEMCONSOLE=y
# CONFIG_EFI_DEV_PATH_PARSER is not set

#
# Tegra firmware driver
#

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_FS_IOMAP=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
# CONFIG_EXT2_FS_POSIX_ACL is not set
# CONFIG_EXT2_FS_SECURITY is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_POSIX_ACL is not set
# CONFIG_EXT3_FS_SECURITY is not set
CONFIG_EXT4_FS=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_ENCRYPTION is not set
CONFIG_EXT4_DEBUG=y
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
CONFIG_REISERFS_PROC_INFO=y
CONFIG_REISERFS_FS_XATTR=y
# CONFIG_REISERFS_FS_POSIX_ACL is not set
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_JFS_FS=y
# CONFIG_JFS_POSIX_ACL is not set
CONFIG_JFS_SECURITY=y
CONFIG_JFS_DEBUG=y
# CONFIG_JFS_STATISTICS is not set
CONFIG_XFS_FS=m
# CONFIG_XFS_QUOTA is not set
CONFIG_XFS_POSIX_ACL=y
# CONFIG_XFS_RT is not set
CONFIG_XFS_DEBUG=y
CONFIG_GFS2_FS=y
CONFIG_OCFS2_FS=m
CONFIG_OCFS2_FS_O2CB=m
# CONFIG_OCFS2_FS_STATS is not set
CONFIG_OCFS2_DEBUG_MASKLOG=y
# CONFIG_OCFS2_DEBUG_FS is not set
CONFIG_BTRFS_FS=y
# CONFIG_BTRFS_FS_POSIX_ACL is not set
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_NILFS2_FS is not set
CONFIG_F2FS_FS=y
CONFIG_F2FS_STAT_FS=y
CONFIG_F2FS_FS_XATTR=y
# CONFIG_F2FS_FS_POSIX_ACL is not set
# CONFIG_F2FS_FS_SECURITY is not set
# CONFIG_F2FS_CHECK_FS is not set
# CONFIG_F2FS_FS_ENCRYPTION is not set
CONFIG_F2FS_IO_TRACE=y
CONFIG_F2FS_FAULT_INJECTION=y
# CONFIG_FS_DAX is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FILE_LOCKING=y
# CONFIG_MANDATORY_FILE_LOCKING is not set
# CONFIG_FS_ENCRYPTION is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QUOTA_DEBUG=y
CONFIG_QUOTA_TREE=m
# CONFIG_QFMT_V1 is not set
# CONFIG_QFMT_V2 is not set
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=y
CONFIG_CUSE=m
CONFIG_OVERLAY_FS=y
CONFIG_OVERLAY_FS_REDIRECT_DIR=y

#
# Caches
#
CONFIG_FSCACHE=m
CONFIG_FSCACHE_STATS=y
CONFIG_FSCACHE_HISTOGRAM=y
CONFIG_FSCACHE_DEBUG=y
# CONFIG_FSCACHE_OBJECT_LIST is not set
CONFIG_CACHEFILES=m
# CONFIG_CACHEFILES_DEBUG is not set
CONFIG_CACHEFILES_HISTOGRAM=y

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
# CONFIG_MSDOS_FS is not set
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_FAT_DEFAULT_UTF8=y
CONFIG_NTFS_FS=m
CONFIG_NTFS_DEBUG=y
# CONFIG_NTFS_RW is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PROC_CHILDREN=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=y
CONFIG_MISC_FILESYSTEMS=y
CONFIG_ORANGEFS_FS=m
CONFIG_ADFS_FS=y
CONFIG_ADFS_FS_RW=y
# CONFIG_AFFS_FS is not set
CONFIG_ECRYPT_FS=m
# CONFIG_ECRYPT_FS_MESSAGING is not set
CONFIG_HFS_FS=m
# CONFIG_HFSPLUS_FS is not set
CONFIG_BEFS_FS=m
# CONFIG_BEFS_DEBUG is not set
CONFIG_BFS_FS=m
CONFIG_EFS_FS=m
CONFIG_JFFS2_FS=m
CONFIG_JFFS2_FS_DEBUG=0
# CONFIG_JFFS2_FS_WRITEBUFFER is not set
# CONFIG_JFFS2_SUMMARY is not set
CONFIG_JFFS2_FS_XATTR=y
# CONFIG_JFFS2_FS_POSIX_ACL is not set
CONFIG_JFFS2_FS_SECURITY=y
CONFIG_JFFS2_COMPRESSION_OPTIONS=y
# CONFIG_JFFS2_ZLIB is not set
CONFIG_JFFS2_LZO=y
CONFIG_JFFS2_RTIME=y
CONFIG_JFFS2_RUBIN=y
# CONFIG_JFFS2_CMODE_NONE is not set
# CONFIG_JFFS2_CMODE_PRIORITY is not set
CONFIG_JFFS2_CMODE_SIZE=y
# CONFIG_JFFS2_CMODE_FAVOURLZO is not set
CONFIG_UBIFS_FS=m
CONFIG_UBIFS_FS_ADVANCED_COMPR=y
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_ZLIB=y
# CONFIG_UBIFS_ATIME_SUPPORT is not set
# CONFIG_UBIFS_FS_ENCRYPTION is not set
CONFIG_CRAMFS=y
CONFIG_SQUASHFS=m
# CONFIG_SQUASHFS_FILE_CACHE is not set
CONFIG_SQUASHFS_FILE_DIRECT=y
CONFIG_SQUASHFS_DECOMP_SINGLE=y
# CONFIG_SQUASHFS_DECOMP_MULTI is not set
# CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU is not set
# CONFIG_SQUASHFS_XATTR is not set
CONFIG_SQUASHFS_ZLIB=y
# CONFIG_SQUASHFS_LZ4 is not set
# CONFIG_SQUASHFS_LZO is not set
CONFIG_SQUASHFS_XZ=y
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
CONFIG_VXFS_FS=y
CONFIG_MINIX_FS=y
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
CONFIG_QNX4FS_FS=y
CONFIG_QNX6FS_FS=y
# CONFIG_QNX6FS_DEBUG is not set
CONFIG_ROMFS_FS=m
CONFIG_ROMFS_BACKED_BY_BLOCK=y
# CONFIG_ROMFS_BACKED_BY_MTD is not set
# CONFIG_ROMFS_BACKED_BY_BOTH is not set
CONFIG_ROMFS_ON_BLOCK=y
CONFIG_PSTORE=y
# CONFIG_PSTORE_ZLIB_COMPRESS is not set
CONFIG_PSTORE_LZO_COMPRESS=y
# CONFIG_PSTORE_LZ4_COMPRESS is not set
CONFIG_PSTORE_CONSOLE=y
# CONFIG_PSTORE_PMSG is not set
CONFIG_PSTORE_FTRACE=y
# CONFIG_PSTORE_RAM is not set
CONFIG_SYSV_FS=m
# CONFIG_UFS_FS is not set
CONFIG_EXOFS_FS=m
# CONFIG_EXOFS_DEBUG is not set
CONFIG_ORE=m
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V2=m
# CONFIG_NFS_V3 is not set
CONFIG_NFS_V4=m
CONFIG_NFS_SWAP=y
# CONFIG_NFS_V4_1 is not set
CONFIG_NFS_FSCACHE=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_NFS_DEBUG=y
CONFIG_NFSD=m
# CONFIG_NFSD_V3 is not set
# CONFIG_NFSD_V4 is not set
CONFIG_GRACE_PERIOD=m
CONFIG_LOCKD=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_SUNRPC_SWAP=y
CONFIG_SUNRPC_DEBUG=y
CONFIG_CEPH_FS=y
# CONFIG_CEPH_FS_POSIX_ACL is not set
CONFIG_CIFS=m
# CONFIG_CIFS_STATS is not set
# CONFIG_CIFS_WEAK_PW_HASH is not set
# CONFIG_CIFS_UPCALL is not set
# CONFIG_CIFS_XATTR is not set
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_DFS_UPCALL is not set
# CONFIG_CIFS_SMB2 is not set
# CONFIG_CIFS_FSCACHE is not set
# CONFIG_NCP_FS is not set
CONFIG_CODA_FS=m
CONFIG_AFS_FS=y
# CONFIG_AFS_DEBUG is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
CONFIG_NLS_CODEPAGE_775=y
CONFIG_NLS_CODEPAGE_850=y
CONFIG_NLS_CODEPAGE_852=m
# CONFIG_NLS_CODEPAGE_855 is not set
CONFIG_NLS_CODEPAGE_857=y
# CONFIG_NLS_CODEPAGE_860 is not set
CONFIG_NLS_CODEPAGE_861=y
CONFIG_NLS_CODEPAGE_862=y
CONFIG_NLS_CODEPAGE_863=y
# CONFIG_NLS_CODEPAGE_864 is not set
CONFIG_NLS_CODEPAGE_865=y
# CONFIG_NLS_CODEPAGE_866 is not set
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=y
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
CONFIG_NLS_CODEPAGE_874=y
CONFIG_NLS_ISO8859_8=m
# CONFIG_NLS_CODEPAGE_1250 is not set
CONFIG_NLS_CODEPAGE_1251=y
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=y
CONFIG_NLS_ISO8859_3=y
CONFIG_NLS_ISO8859_4=y
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=y
CONFIG_NLS_ISO8859_7=y
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=y
CONFIG_NLS_ISO8859_14=y
# CONFIG_NLS_ISO8859_15 is not set
CONFIG_NLS_KOI8_R=y
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_MAC_ROMAN=y
CONFIG_NLS_MAC_CELTIC=m
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
CONFIG_NLS_MAC_CYRILLIC=y
# CONFIG_NLS_MAC_GAELIC is not set
CONFIG_NLS_MAC_GREEK=m
# CONFIG_NLS_MAC_ICELAND is not set
CONFIG_NLS_MAC_INUIT=m
# CONFIG_NLS_MAC_ROMANIAN is not set
CONFIG_NLS_MAC_TURKISH=m
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set

#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_DYNAMIC_DEBUG=y

#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
CONFIG_UNUSED_SYMBOLS=y
CONFIG_PAGE_OWNER=y
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_SECTION_MISMATCH=y
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_DEBUG_KERNEL=y

#
# Memory Debugging
#
CONFIG_PAGE_EXTENSION=y
CONFIG_DEBUG_PAGEALLOC=y
# CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT is not set
CONFIG_PAGE_POISONING=y
# CONFIG_PAGE_POISONING_NO_SANITY is not set
# CONFIG_PAGE_POISONING_ZERO is not set
CONFIG_DEBUG_PAGE_REF=y
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_SELFTEST=y
# CONFIG_DEBUG_OBJECTS_FREE is not set
# CONFIG_DEBUG_OBJECTS_TIMERS is not set
# CONFIG_DEBUG_OBJECTS_WORK is not set
# CONFIG_DEBUG_OBJECTS_RCU_HEAD is not set
CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
# CONFIG_DEBUG_SLAB is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
CONFIG_HAVE_ARCH_KMEMCHECK=y
# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Lockups and Hangs
#
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
CONFIG_WQ_WATCHDOG=y
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
CONFIG_PANIC_TIMEOUT=0
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
CONFIG_SCHEDSTATS=y
# CONFIG_SCHED_STACK_END_CHECK is not set
CONFIG_DEBUG_TIMEKEEPING=y
# CONFIG_TIMER_STATS is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
CONFIG_DEBUG_LOCK_ALLOC=y
# CONFIG_PROVE_LOCKING is not set
CONFIG_LOCKDEP=y
CONFIG_LOCK_STAT=y
CONFIG_DEBUG_LOCKDEP=y
CONFIG_DEBUG_ATOMIC_SLEEP=y
CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
CONFIG_LOCK_TORTURE_TEST=m
CONFIG_TRACE_IRQFLAGS=y
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PI_LIST is not set
CONFIG_DEBUG_SG=y
# CONFIG_DEBUG_NOTIFIERS is not set
CONFIG_DEBUG_CREDENTIALS=y

#
# RCU Debugging
#
# CONFIG_PROVE_RCU is not set
CONFIG_SPARSE_RCU_POINTER=y
CONFIG_TORTURE_TEST=y
# CONFIG_RCU_PERF_TEST is not set
CONFIG_RCU_TORTURE_TEST=y
CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT_DELAY=3
CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
CONFIG_RCU_TORTURE_TEST_SLOW_INIT_DELAY=3
# CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_EQS_DEBUG=y
# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
CONFIG_NOTIFIER_ERROR_INJECTION=y
# CONFIG_OF_RECONFIG_NOTIFIER_ERROR_INJECT is not set
CONFIG_NETDEV_NOTIFIER_ERROR_INJECT=y
CONFIG_FAULT_INJECTION=y
# CONFIG_FAILSLAB is not set
# CONFIG_FAIL_PAGE_ALLOC is not set
# CONFIG_FAIL_MAKE_REQUEST is not set
CONFIG_FAIL_IO_TIMEOUT=y
CONFIG_FAIL_FUTEX=y
# CONFIG_FAULT_INJECTION_DEBUG_FS is not set
CONFIG_LATENCYTOP=y
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_RING_BUFFER_ALLOW_SWAP=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
CONFIG_FUNCTION_TRACER=y
CONFIG_IRQSOFF_TRACER=y
CONFIG_SCHED_TRACER=y
# CONFIG_HWLAT_TRACER is not set
# CONFIG_FTRACE_SYSCALLS is not set
CONFIG_TRACER_SNAPSHOT=y
CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y
CONFIG_TRACE_BRANCH_PROFILING=y
# CONFIG_BRANCH_PROFILE_NONE is not set
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
CONFIG_PROFILE_ALL_BRANCHES=y
# CONFIG_BRANCH_TRACER is not set
CONFIG_STACK_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
# CONFIG_UPROBE_EVENT is not set
# CONFIG_PROBE_EVENTS is not set
# CONFIG_DYNAMIC_FTRACE is not set
# CONFIG_FUNCTION_PROFILER is not set
# CONFIG_FTRACE_STARTUP_TEST is not set
CONFIG_MMIOTRACE=y
# CONFIG_HIST_TRIGGERS is not set
CONFIG_MMIOTRACE_TEST=m
CONFIG_TRACEPOINT_BENCHMARK=y
CONFIG_RING_BUFFER_BENCHMARK=m
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
CONFIG_TRACE_ENUM_MAP_FILE=y
CONFIG_TRACING_EVENTS_GPIO=y

#
# Runtime Testing
#
CONFIG_LKDTM=y
CONFIG_TEST_LIST_SORT=y
# CONFIG_BACKTRACE_SELF_TEST is not set
CONFIG_RBTREE_TEST=y
CONFIG_INTERVAL_TREE_TEST=m
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
CONFIG_TEST_HEXDUMP=m
CONFIG_TEST_STRING_HELPERS=m
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
# CONFIG_TEST_RHASHTABLE is not set
CONFIG_TEST_HASH=y
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_TEST_LKM is not set
CONFIG_TEST_USER_COPY=m
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_FIRMWARE is not set
CONFIG_TEST_UDELAY=m
CONFIG_MEMTEST=y
CONFIG_TEST_STATIC_KEYS=m
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
# CONFIG_ARCH_WANTS_UBSAN_NO_NULL is not set
# CONFIG_UBSAN is not set
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
CONFIG_STRICT_DEVMEM=y
CONFIG_IO_STRICT_DEVMEM=y
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
# CONFIG_EARLY_PRINTK_DBGP is not set
CONFIG_X86_PTDUMP_CORE=y
# CONFIG_X86_PTDUMP is not set
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_DEBUG_WX=y
# CONFIG_DEBUG_NX_TEST is not set
CONFIG_DOUBLEFAULT=y
CONFIG_DEBUG_TLBFLUSH=y
# CONFIG_IOMMU_STRESS is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
# CONFIG_IO_DELAY_0X80 is not set
# CONFIG_IO_DELAY_0XED is not set
CONFIG_IO_DELAY_UDELAY=y
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=2
# CONFIG_DEBUG_BOOT_PARAMS is not set
# CONFIG_CPA_DEBUG is not set
CONFIG_OPTIMIZE_INLINING=y
CONFIG_DEBUG_ENTRY=y
# CONFIG_DEBUG_NMI_SELFTEST is not set
# CONFIG_X86_DEBUG_FPU is not set
CONFIG_PUNIT_ATOM_DEBUG=m

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_BIG_KEYS is not set
CONFIG_TRUSTED_KEYS=m
CONFIG_ENCRYPTED_KEYS=m
CONFIG_KEY_DH_OPERATIONS=y
CONFIG_SECURITY_DMESG_RESTRICT=y
# CONFIG_SECURITY is not set
CONFIG_SECURITYFS=y
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HAVE_ARCH_HARDENED_USERCOPY=y
CONFIG_HARDENED_USERCOPY=y
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_XOR_BLOCKS=y
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_XOR=m
CONFIG_ASYNC_PQ=m
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=m
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_AUTHENC=y
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_ABLK_HELPER=y
CONFIG_CRYPTO_SIMD=y
CONFIG_CRYPTO_GLUE_HELPER_X86=y

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=y
# CONFIG_CRYPTO_GCM is not set
CONFIG_CRYPTO_CHACHA20POLY1305=y
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=y

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CTR=y
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_XTS=y
CONFIG_CRYPTO_KEYWRAP=y

#
# Hash modes
#
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=m
CONFIG_CRYPTO_CRC32=y
CONFIG_CRYPTO_CRC32_PCLMUL=y
CONFIG_CRYPTO_CRCT10DIF=y
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_POLY1305=y
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
CONFIG_CRYPTO_RMD256=y
CONFIG_CRYPTO_RMD320=m
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
# CONFIG_CRYPTO_SHA3 is not set
# CONFIG_CRYPTO_TGR192 is not set
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_586=y
CONFIG_CRYPTO_AES_NI_INTEL=y
CONFIG_CRYPTO_ANUBIS=y
CONFIG_CRYPTO_ARC4=m
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
CONFIG_CRYPTO_CAST_COMMON=y
CONFIG_CRYPTO_CAST5=y
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_FCRYPT=y
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
# CONFIG_CRYPTO_SALSA20_586 is not set
CONFIG_CRYPTO_CHACHA20=y
# CONFIG_CRYPTO_SEED is not set
CONFIG_CRYPTO_SERPENT=y
CONFIG_CRYPTO_SERPENT_SSE2_586=y
CONFIG_CRYPTO_TEA=y
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=y
CONFIG_CRYPTO_TWOFISH_586=y

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=m
CONFIG_CRYPTO_842=m
CONFIG_CRYPTO_LZ4=y
CONFIG_CRYPTO_LZ4HC=m

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
CONFIG_CRYPTO_DRBG_HASH=y
# CONFIG_CRYPTO_DRBG_CTR is not set
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
# CONFIG_CRYPTO_USER_API_AEAD is not set
CONFIG_CRYPTO_HASH_INFO=y
# CONFIG_CRYPTO_HW is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
CONFIG_X509_CERTIFICATE_PARSER=y
CONFIG_PKCS7_MESSAGE_PARSER=y

#
# Certificates for signature checking
#
CONFIG_SYSTEM_TRUSTED_KEYRING=y
CONFIG_SYSTEM_TRUSTED_KEYS=""
# CONFIG_SYSTEM_EXTRA_CERTIFICATE is not set
CONFIG_SECONDARY_TRUSTED_KEYRING=y
CONFIG_HAVE_KVM=y
CONFIG_VIRTUALIZATION=y
CONFIG_VHOST_NET=m
CONFIG_VHOST_VSOCK=m
CONFIG_VHOST=m
CONFIG_VHOST_CROSS_ENDIAN_LEGACY=y
CONFIG_LGUEST=y
CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_RAID6_PQ=y
CONFIG_BITREVERSE=y
# CONFIG_HAVE_ARCH_BITREVERSE is not set
CONFIG_RATIONAL=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC_ITU_T=y
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
# CONFIG_CRC32_SLICEBY8 is not set
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
CONFIG_CRC32_BIT=y
CONFIG_CRC7=y
CONFIG_LIBCRC32C=y
CONFIG_CRC8=y
CONFIG_AUDIT_GENERIC=y
# CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_842_COMPRESS=m
CONFIG_842_DECOMPRESS=m
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_COMPRESS=y
CONFIG_LZ4HC_COMPRESS=m
CONFIG_LZ4_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
CONFIG_XZ_DEC_TEST=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_REED_SOLOMON=m
CONFIG_REED_SOLOMON_DEC16=y
CONFIG_BCH=m
CONFIG_INTERVAL_TREE=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_DQL=y
CONFIG_GLOB=y
CONFIG_GLOB_SELFTEST=y
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
CONFIG_CORDIC=y
CONFIG_DDR=y
CONFIG_IRQ_POLL=y
CONFIG_MPILIB=y
CONFIG_LIBFDT=y
CONFIG_OID_REGISTRY=y
CONFIG_FONT_SUPPORT=m
CONFIG_FONTS=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_FONT_6x11 is not set
# CONFIG_FONT_7x14 is not set
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
CONFIG_FONT_MINI_4x6=y
CONFIG_FONT_6x10=y
CONFIG_FONT_SUN8x16=y
# CONFIG_FONT_SUN12x22 is not set
# CONFIG_FONT_10x18 is not set
# CONFIG_SG_SPLIT is not set
CONFIG_SG_POOL=y
CONFIG_ARCH_HAS_SG_CHAIN=y
CONFIG_ARCH_HAS_MMIO_FLUSH=y
CONFIG_STACKDEPOT=y
CONFIG_SBITMAP=y

--=_58bd374c.J3Hg7F/xfixvxDlduekC4sw75YkQEkERg00qVSlCOnSudHP3--


From - Thu Nov 08 21:39:41 2018
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: "Carlos O'Donell" <carlos@systemhalted.org>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: Re: [PATCH] uapi: fix asm/signal.h userspace compilation errors
Date: Mon, 6 Mar 2017 10:10:18 -0500
Lines: 67
Approved: news@gmane.org
Message-ID: <CAE2sS1jTyENymA-fSAk4dt29rYgX50zYqubVYnGVGnFrH=-1nA@mail.gmail.com>
References: <20170226010156.GA28831@altlinux.org> <CAK8P3a0YX3RGAqWN0mwUJtBsqUX0C+QRtJLrT_UA=wX6Z+q0DA@mail.gmail.com>
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Cc: Arnd Bergmann <arnd@arndb.de>,
        Russell King <linux@armlinux.org.uk>,
        Haavard Skinnemoen <hskinnemoen@gmail.com>,
        Hans-Christian Egtvedt <egtvedt@samfundet.no>,
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        Tony Luck <tony.luck@intel.com>,
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To: "Dmitry V. Levin" <ldv@altlinux.org>
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On Fri, Mar 3, 2017 at 8:23 PM, Carlos O'Donell <carlos@systemhalted.org> wrote:
> On Thu, Mar 2, 2017 at 10:48 AM, Dmitry V. Levin <ldv@altlinux.org> wrote:
>> On Thu, Mar 02, 2017 at 10:22:18AM -0500, Carlos O'Donell wrote:
>>> On Wed, Mar 1, 2017 at 11:20 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>>> > On Sun, Feb 26, 2017 at 2:01 AM, Dmitry V. Levin <ldv@altlinux.org> wrote:
>>> >> Include <stddef.h> (guarded by #ifndef __KERNEL__) to fix asm/signal.h
>>> >> userspace compilation errors like this:
>>> >>
>>> >> /usr/include/asm/signal.h:126:2: error: unknown type name 'size_t'
>>> >>   size_t ss_size;
>>> >>
>>> >> As no uapi header provides a definition of size_t, inclusion
>>> >> of <stddef.h> seems to be the most conservative fix available.
>> [...]
>>> > I'm not sure if this is the best fix. We generally should not include one
>>> > standard header from another standard header. Would it be possible
>>> > to use __kernel_size_t instead of size_t?
>>>
>>> In glibc we handle this with special use of __need_size_t with GCC's
>>> provided stddef.h.
>>>
>>> For example glibc's signal.h does this:
>>>
>>> # define __need_size_t
>>> # include <stddef.h>
>>
>> Just to make it clear, do you suggest this approach for asm/signal.h as well?

The best practice from the glibc community looks like this:

(a) Create a bits/types/*.h header for the type you need.

e.g.
./time/bits/types/struct_timeval.h
./time/bits/types/struct_itimerspec.h
./time/bits/types/time_t.h
./time/bits/types/struct_timespec.h
./time/bits/types/struct_tm.h
./time/bits/types/clockid_t.h
./time/bits/types/clock_t.h
./time/bits/types/timer_t.h

(b) If neccessary the bits/types/*.h header is a wrapper:
~~~
#define __need_size_t
#include <stddef.h>
~~~
to get access to the compiler provided type.

This way all of the code you need simplifies to includes for the types you need.

e.g.

time/sys/time.h:
...
#include <bits/types.h>
#include <bits/types/time_t.h>
#include <bits/types/struct_timeval.h>
...

This is what we've been doing in glibc starting last September as we
cleaned up all the convoluted conditional logic to get the types we
needed in the headers that needed them.

Cheers,
Carlos.


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From: Rob Landley <rob@landley.net>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 1/3] futex: remove duplicated code
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To: Russell King - ARM Linux <linux@armlinux.org.uk>,
        Jiri Slaby <jslaby@suse.cz>
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On 03/04/2017 07:05 AM, Russell King - ARM Linux wrote:
> On Fri, Mar 03, 2017 at 01:27:10PM +0100, Jiri Slaby wrote:
>> diff --git a/kernel/futex.c b/kernel/futex.c
>> index b687cb22301c..c5ff9850952f 100644
>> --- a/kernel/futex.c
>> +++ b/kernel/futex.c
>> @@ -1457,6 +1457,42 @@ futex_wake(u32 __user *uaddr, unsigned int flags, int nr_wake, u32 bitset)
>>  	return ret;
>>  }
>>  
>> +static int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
>> +{
>> +	int op = (encoded_op >> 28) & 7;
>> +	int cmp = (encoded_op >> 24) & 15;
>> +	int oparg = (encoded_op << 8) >> 20;
>> +	int cmparg = (encoded_op << 20) >> 20;
> 
> Hmm.  oparg and cmparg look like they're doing these shifts to get sign
> extension of the 12-bit values by assuming that "int" is 32-bit -
> probably worth a comment, or for safety, they should be "s32" so it's
> not dependent on the bit-width of "int".

I thought Linux depended on the LP64 standard for all architectures?

Standard: http://www.unix.org/whitepapers/64bit.html
Rationale: http://www.unix.org/version2/whatsnew/lp64_wp.html

So int has a defined bit width (32) on linux?

Rob
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From - Thu Nov 08 21:39:41 2018
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From: "H. Peter Anvin" <hpa@zytor.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH 1/3] futex: remove duplicated code
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To: Rob Landley <rob@landley.net>,
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<cmetcalf@mellanox.com>,Thomas Gleixner <tglx@linutronix.de>,Ingo Molnar <mingo@redhat.com>,Chris Zankel <chris@zankel.net>,Max Filippov <jcmvbkbc@gmail.com>,Arnd Bergmann <arnd@arndb.de>,x86@kernel.org,linux-alpha@vger.kernel.org,linux-snps-arc@lists.infradead.org,linux-arm-kernel@lists.infradead.org,linux-hexagon@vger.kernel.org,linux-ia64@vger.kernel.org,linux-mips@linux-mips.org,openrisc@lists.librecores.org,linux-parisc@vger.kernel.org,linuxppc-dev@lists.ozlabs.org,linux-s390@vger.kernel.org,linux-sh@vger.kernel.org,sparclinux@vger.kernel.org,linux-xtensa@linux-xtensa.org,linux-arch@vger.kernel.org
From: hpa@zytor.com
Message-ID: <83324528-AAA1-4BED-B0C7-48426ECBA261@zytor.com>

On March 8, 2017 8:16:49 PM PST, Rob Landley <rob@landley.net> wrote:
>On 03/04/2017 07:05 AM, Russell King - ARM Linux wrote:
>> On Fri, Mar 03, 2017 at 01:27:10PM +0100, Jiri Slaby wrote:
>>> diff --git a/kernel/futex.c b/kernel/futex.c
>>> index b687cb22301c..c5ff9850952f 100644
>>> --- a/kernel/futex.c
>>> +++ b/kernel/futex.c
>>> @@ -1457,6 +1457,42 @@ futex_wake(u32 __user *uaddr, unsigned int
>flags, int nr_wake, u32 bitset)
>>>  	return ret;
>>>  }
>>>  
>>> +static int futex_atomic_op_inuser(int encoded_op, u32 __user
>*uaddr)
>>> +{
>>> +	int op = (encoded_op >> 28) & 7;
>>> +	int cmp = (encoded_op >> 24) & 15;
>>> +	int oparg = (encoded_op << 8) >> 20;
>>> +	int cmparg = (encoded_op << 20) >> 20;
>> 
>> Hmm.  oparg and cmparg look like they're doing these shifts to get
>sign
>> extension of the 12-bit values by assuming that "int" is 32-bit -
>> probably worth a comment, or for safety, they should be "s32" so it's
>> not dependent on the bit-width of "int".
>
>I thought Linux depended on the LP64 standard for all architectures?
>
>Standard: http://www.unix.org/whitepapers/64bit.html
>Rationale: http://www.unix.org/version2/whatsnew/lp64_wp.html
>
>So int has a defined bit width (32) on linux?
>
>Rob

Linux is ILP32 on 32-bit architectures and LP64 on 64-bit architectures, but that doesn't inherently make this stuff clear.
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From: Mike Frysinger <vapier-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org>
Newsgroups: gmane.linux.man,gmane.linux.ports.parisc
Subject: [PATCH] syscall(2): note parisc handling of aligned register pairs
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While parisc would normally have the same behavior as ARM/PowerPC,
they decide to write shim syscall stubs to unpack/realign rather
than expose the padding to userspace.

Signed-off-by: Mike Frysinger <vapier-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org>
---
 man2/syscall.2 | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/man2/syscall.2 b/man2/syscall.2
index f8c89b84356d..b55540e039b7 100644
--- a/man2/syscall.2
+++ b/man2/syscall.2
@@ -133,6 +133,10 @@ on PowerPC with the 32-bit ABI, and on Xtensa.
 .\" Mike Frysinger: this issue ends up forcing MIPS
 .\" O32 to take 7 arguments to syscall()
 
+.\" See arch/parisc/kernel/sys_parisc.c.
+Note that while the parisc C ABI also uses aligned register pairs,
+it uses a shim layer to hide the issue from userspace.
+
 The affected system calls are
 .BR fadvise64_64 (2),
 .BR ftruncate64 (2),
-- 
2.12.0

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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Optimize flush_kernel_vmap_range and invalidate_kernel_vmap_range
Date: Sat, 11 Mar 2017 18:03:34 -0500
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The previously submitted patch did not resolve the random segmentation =
faults observed on the phantom buildd system.
There are still unresolved problems with the Debian 4.8 and 4.9 kernels =
on C8000.

The attached patch removes the flush of the offset map pages and does a =
whole data cache flush for large ranges.  No
other arch flushes the offset map in these routines as far as I can =
tell.

I have not observed any random segmentation faults on rp3440 in two =
weeks of testing with 4.10.0 and 4.10.1.  I know
as soon as I send this mail, something will break...

Signed-off-by: John David Anglin <dave.anglin@bell.net>


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diff --git a/arch/parisc/include/asm/cacheflush.h =
b/arch/parisc/include/asm/cacheflush.h
index 7bd69bd43a01..c7e15cc5c668 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -45,28 +43,9 @@ static inline void flush_kernel_dcache_page(struct =
page *page)
=20
 #define flush_kernel_dcache_range(start,size) \
 	flush_kernel_dcache_range_asm((start), (start)+(size));
-/* vmap range flushes and invalidates.  Architecturally, we don't need
- * the invalidate, because the CPU should refuse to speculate once an
- * area has been flushed, so invalidate is left empty */
-static inline void flush_kernel_vmap_range(void *vaddr, int size)
-{
-	unsigned long start =3D (unsigned long)vaddr;
-
-	flush_kernel_dcache_range_asm(start, start + size);
-}
-static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
-{
-	unsigned long start =3D (unsigned long)vaddr;
-	void *cursor =3D vaddr;
=20
-	for ( ; cursor < vaddr + size; cursor +=3D PAGE_SIZE) {
-		struct page *page =3D vmalloc_to_page(cursor);
-
-		if (test_and_clear_bit(PG_dcache_dirty, &page->flags))
-			flush_kernel_dcache_page(page);
-	}
-	flush_kernel_dcache_range_asm(start, start + size);
-}
+void flush_kernel_vmap_range(void *vaddr, int size);
+void invalidate_kernel_vmap_range(void *vaddr, int size);
=20
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 977f0a4f5ecf..8935d350ede5 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -633,3 +615,25 @@ flush_cache_page(struct vm_area_struct *vma, =
unsigned long vmaddr, unsigned long
 		__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
 	}
 }
+
+void flush_kernel_vmap_range(void *vaddr, int size)
+{
+	unsigned long start =3D (unsigned long)vaddr;
+
+	if ((unsigned long)size > parisc_cache_flush_threshold)
+		flush_data_cache();
+	else
+		flush_kernel_dcache_range_asm(start, start + size);
+}
+EXPORT_SYMBOL(flush_kernel_vmap_range);
+
+void invalidate_kernel_vmap_range(void *vaddr, int size)
+{
+	unsigned long start =3D (unsigned long)vaddr;
+
+	if ((unsigned long)size > parisc_cache_flush_threshold)
+		flush_data_cache();
+	else
+		flush_kernel_dcache_range_asm(start, start + size);
+}
+EXPORT_SYMBOL(invalidate_kernel_vmap_range);

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On 03/11/2017 10:04 PM, Mike Frysinger wrote:
> While parisc would normally have the same behavior as ARM/PowerPC,
> they decide to write shim syscall stubs to unpack/realign rather
> than expose the padding to userspace.

Thanks, Mike. Patch applied.

Cheers,

Michael


> Signed-off-by: Mike Frysinger <vapier-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org>
> ---
>  man2/syscall.2 | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/man2/syscall.2 b/man2/syscall.2
> index f8c89b84356d..b55540e039b7 100644
> --- a/man2/syscall.2
> +++ b/man2/syscall.2
> @@ -133,6 +133,10 @@ on PowerPC with the 32-bit ABI, and on Xtensa.
>  .\" Mike Frysinger: this issue ends up forcing MIPS
>  .\" O32 to take 7 arguments to syscall()
>  
> +.\" See arch/parisc/kernel/sys_parisc.c.
> +Note that while the parisc C ABI also uses aligned register pairs,
> +it uses a shim layer to hide the issue from userspace.
> +
>  The affected system calls are
>  .BR fadvise64_64 (2),
>  .BR ftruncate64 (2),
> 


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From - Thu Nov 08 21:39:41 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: [RFC PATCH 00/13] Introduce first class virtual address spaces
Date: Mon, 13 Mar 2017 15:14:02 -0700
Lines: 209
Approved: news@gmane.org
Message-ID: <20170313221415.9375-1-till.smejkal@gmail.com>
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Cc: linux-kernel@vger.kernel.org,
	linux-alpha@vger.kernel.org,
	linux-snps-arc@lists.infradead.org,
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To: Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	Vineet Gupta <vgupta@synopsys.com>,
	Russell King <linux@armlinux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Steven Miao <realmz6@gmail.com>,
	Richard Kuo <rkuo@codeaurora.org>,
	Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
	James Hogan <james.hogan@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	"David S. Miller" <davem@dave
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.aio.general/4935>

First class virtual address spaces (also called VAS) are a new functionality of
the Linux kernel allowing address spaces to exist independently of processes.
The general idea behind this feature is described in a paper at ASPLOS16 with
the title 'SpaceJMP: Programming with Multiple Virtual Address Spaces' [1].

This patchset extends the kernel memory management subsystem with a new
type of address spaces (called VAS) which can be created and destroyed
independently of processes by a user in the system. During its lifetime
such a VAS can be attached to processes by the user which allows a process
to have multiple address spaces and thereby multiple, potentially
different, views on the system's main memory. During its execution the
threads belonging to the process are able to switch freely between the
different attached VAS and the process' original AS enabling them to
utilize the different available views on the memory. These multiple virtual
address spaces per process and the possibility to switch between them
freely can be used in multiple interesting ways as also outlined in the
mentioned paper. Some of the many possible applications are for example to
compartmentalize a process for security reasons, to improve the performance
of data-centric applications and to introduce new application models [1].

In addition to the concept of first class virtual address spaces, this
patchset introduces yet another feature called VAS segments. VAS segments
are memory regions which have a fixed size and position in the virtual
address space and can be shared between multiple first class virtual
address spaces. Such shareable memory regions are especially useful for
in-memory pointer-based data structures or other pure in-memory data.

First class virtual address spaces have a significant advantage compared to
forking a process and using inter process communication mechanism, namely
that creating and switching between VAS is significant faster than creating
and switching between processes. As it can be seen in the following table,
measured on an Intel Xeon E5620 CPU with 2.40GHz, creating a VAS is about 7
times faster than forking and switching between VAS is up to 4 times faster
than switching between processes.

            |     VAS     |  processes  |
    -------------------------------------
    switch  |       468ns |      1944ns |
    create  |     20003ns |    150491ns |

Hence, first class virtual address spaces provide a fast mechanism for
applications to utilize multiple virtual address spaces in parallel with a
higher performance than splitting up the application into multiple
independent processes.

Both VAS and VAS segments have another significant advantage when combined
with non-volatile memory. Because of their independent life cycle from
processes and other kernel data structures, they can be used to save
special memory regions or even whole AS into non-volatile memory making it
possible to reuse them across multiple system reboots.

At the current state of the development, first class virtual address spaces
have one limitation, that we haven't been able to solve so far. The feature
allows, that different threads of the same process can execute in different
AS at the same time. This is possible, because the VAS-switch operation
only changes the active mm_struct for the task_struct of the calling
thread. However, when a thread switches into a first class virtual address
space, some parts of its original AS are duplicated into the new one to
allow the thread to continue its execution at its current state.
Accordingly, parts of the processes AS (e.g. the code section, data
section, heap section and stack sections) exist in multiple AS if the
process has a VAS attached to it. Changes to these shared memory regions
are synchronized between the address spaces whenever a thread switches
between two of them. Unfortunately, in some scenarios the kernel is not
able to properly synchronize all these shared memory regions because of
conflicting changes. One such example happens if there are two threads, one
executing in an attached first class virtual address space, the other in
the tasks original address space. If both threads make changes to the heap
section that cause expansion of the underlying vm_area_struct, the kernel
cannot correctly synchronize these changes, because that would cause parts
of the virtual address space to be overwritten with unrelated data. In the
current implementation such conflicts are only detected but not resolved
and result in an error code being returned by the kernel during the VAS
switch operation. Unfortunately, that means for the particular thread that
tried to make the switch, that it cannot do this anymore in the future and
accordingly has to be killed.

This code was developed during an internship at Hewlett Packard Enterprise.

[1] http://impact.crhc.illinois.edu/shared/Papers/ASPLOS16-SpaceJMP.pdf

Till Smejkal (13):
  mm: Add mm_struct argument to 'mmap_region'
  mm: Add mm_struct argument to 'do_mmap' and 'do_mmap_pgoff'
  mm: Rename 'unmap_region' and add mm_struct argument
  mm: Add mm_struct argument to 'get_unmapped_area' and
    'vm_unmapped_area'
  mm: Add mm_struct argument to 'mm_populate' and '__mm_populate'
  mm/mmap: Export 'vma_link' and 'find_vma_links' to mm subsystem
  kernel/fork: Split and export 'mm_alloc' and 'mm_init'
  kernel/fork: Define explicitly which mm_struct to duplicate during
    fork
  mm/memory: Add function to one-to-one duplicate page ranges
  mm: Introduce first class virtual address spaces
  mm/vas: Introduce VAS segments - shareable address space regions
  mm/vas: Add lazy-attach support for first class virtual address spaces
  fs/proc: Add procfs support for first class virtual address spaces

 MAINTAINERS                                  |   10 +
 arch/alpha/kernel/osf_sys.c                  |   19 +-
 arch/arc/mm/mmap.c                           |    8 +-
 arch/arm/kernel/process.c                    |    2 +-
 arch/arm/mach-rpc/ecard.c                    |    2 +-
 arch/arm/mm/mmap.c                           |   19 +-
 arch/arm64/kernel/vdso.c                     |    2 +-
 arch/blackfin/include/asm/pgtable.h          |    3 +-
 arch/blackfin/kernel/sys_bfin.c              |    5 +-
 arch/frv/mm/elf-fdpic.c                      |   11 +-
 arch/hexagon/kernel/vdso.c                   |    2 +-
 arch/ia64/kernel/perfmon.c                   |    3 +-
 arch/ia64/kernel/sys_ia64.c                  |    6 +-
 arch/ia64/mm/hugetlbpage.c                   |    7 +-
 arch/metag/mm/hugetlbpage.c                  |   11 +-
 arch/mips/kernel/vdso.c                      |    4 +-
 arch/mips/mm/mmap.c                          |   27 +-
 arch/parisc/kernel/sys_parisc.c              |   19 +-
 arch/parisc/mm/hugetlbpage.c                 |    7 +-
 arch/powerpc/include/asm/book3s/64/hugetlb.h |    6 +-
 arch/powerpc/include/asm/page_64.h           |    3 +-
 arch/powerpc/kernel/vdso.c                   |    2 +-
 arch/powerpc/mm/hugetlbpage-radix.c          |    9 +-
 arch/powerpc/mm/hugetlbpage.c                |    9 +-
 arch/powerpc/mm/mmap.c                       |   17 +-
 arch/powerpc/mm/slice.c                      |   25 +-
 arch/s390/kernel/vdso.c                      |    3 +-
 arch/s390/mm/mmap.c                          |   42 +-
 arch/sh/kernel/vsyscall/vsyscall.c           |    2 +-
 arch/sh/mm/mmap.c                            |   19 +-
 arch/sparc/include/asm/pgtable_64.h          |    4 +-
 arch/sparc/kernel/sys_sparc_32.c             |    6 +-
 arch/sparc/kernel/sys_sparc_64.c             |   31 +-
 arch/sparc/mm/hugetlbpage.c                  |   26 +-
 arch/tile/kernel/vdso.c                      |    2 +-
 arch/tile/mm/elf.c                           |    2 +-
 arch/tile/mm/hugetlbpage.c                   |   26 +-
 arch/x86/entry/syscalls/syscall_32.tbl       |   16 +
 arch/x86/entry/syscalls/syscall_64.tbl       |   16 +
 arch/x86/entry/vdso/vma.c                    |    2 +-
 arch/x86/kernel/sys_x86_64.c                 |   19 +-
 arch/x86/mm/hugetlbpage.c                    |   26 +-
 arch/x86/mm/mpx.c                            |    6 +-
 arch/xtensa/kernel/syscall.c                 |    7 +-
 drivers/char/mem.c                           |   15 +-
 drivers/dax/dax.c                            |   10 +-
 drivers/media/usb/uvc/uvc_v4l2.c             |    6 +-
 drivers/media/v4l2-core/v4l2-dev.c           |    8 +-
 drivers/media/v4l2-core/videobuf2-v4l2.c     |    5 +-
 drivers/mtd/mtdchar.c                        |    3 +-
 drivers/usb/gadget/function/uvc_v4l2.c       |    3 +-
 fs/aio.c                                     |    4 +-
 fs/exec.c                                    |    5 +-
 fs/hugetlbfs/inode.c                         |    8 +-
 fs/proc/base.c                               |  528 ++++
 fs/proc/inode.c                              |   11 +-
 fs/proc/internal.h                           |    1 +
 fs/ramfs/file-mmu.c                          |    5 +-
 fs/ramfs/file-nommu.c                        |   10 +-
 fs/romfs/mmap-nommu.c                        |    3 +-
 include/linux/fs.h                           |    2 +-
 include/linux/huge_mm.h                      |   12 +-
 include/linux/hugetlb.h                      |   10 +-
 include/linux/mm.h                           |   53 +-
 include/linux/mm_types.h                     |   16 +-
 include/linux/sched.h                        |   34 +-
 include/linux/shmem_fs.h                     |    5 +-
 include/linux/syscalls.h                     |   21 +
 include/linux/vas.h                          |  322 +++
 include/linux/vas_types.h                    |  173 ++
 include/media/v4l2-dev.h                     |    3 +-
 include/media/videobuf2-v4l2.h               |    5 +-
 include/uapi/asm-generic/unistd.h            |   34 +-
 include/uapi/linux/Kbuild                    |    1 +
 include/uapi/linux/vas.h                     |   28 +
 init/main.c                                  |    2 +
 ipc/shm.c                                    |   22 +-
 kernel/events/uprobes.c                      |    2 +-
 kernel/exit.c                                |    2 +
 kernel/fork.c                                |   99 +-
 kernel/sys_ni.c                              |   18 +
 mm/Kconfig                                   |   47 +
 mm/Makefile                                  |    1 +
 mm/gup.c                                     |    4 +-
 mm/huge_memory.c                             |   83 +-
 mm/hugetlb.c                                 |  205 +-
 mm/internal.h                                |   19 +
 mm/memory.c                                  |  469 +++-
 mm/mlock.c                                   |   21 +-
 mm/mmap.c                                    |  124 +-
 mm/mremap.c                                  |   13 +-
 mm/nommu.c                                   |   17 +-
 mm/shmem.c                                   |   14 +-
 mm/util.c                                    |    4 +-
 mm/vas.c                                     | 3466 ++++++++++++++++++++++++++
 sound/core/pcm_native.c                      |    3 +-
 96 files changed, 5927 insertions(+), 545 deletions(-)
 create mode 100644 include/linux/vas.h
 create mode 100644 include/linux/vas_types.h
 create mode 100644 include/uapi/linux/vas.h
 create mode 100644 mm/vas.c

-- 
2.12.0

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From - Thu Nov 08 21:39:41 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: [RFC PATCH 01/13] mm: Add mm_struct argument to 'mmap_region'
Date: Mon, 13 Mar 2017 15:14:03 -0700
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Cc: linux-kernel@vger.kernel.org,
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To: Richard Henderson <rth@twiddle.net>,
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	Matt Turner <mattst88@gmail.com>,
	Vineet Gupta <vgupta@synopsys.com>,
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	Richard Kuo <rkuo@codeaurora.org>,
	Tony Luck <tony.luck@intel.com>,
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	James Hogan <james.hogan@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
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	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	"David S. Miller" <davem@dave
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Add to the 'mmap_region' function the mm_struct that it should operate on
as additional argument. Before, the function simply used the memory map of
the current task. However, with the introduction of first class virtual
address spaces, mmap_region needs also be able to operate on other memory
maps than only the current task ones. By adding it as argument we can now
explicitly define which memory map to use.

Signed-off-by: Till Smejkal <till.smejkal@gmail.com>
---
 arch/mips/kernel/vdso.c |  2 +-
 arch/tile/mm/elf.c      |  2 +-
 include/linux/mm.h      |  5 +++--
 mm/mmap.c               | 10 +++++-----
 4 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c
index f9dbfb14af33..9631b42908f3 100644
--- a/arch/mips/kernel/vdso.c
+++ b/arch/mips/kernel/vdso.c
@@ -108,7 +108,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 		return -EINTR;
 
 	/* Map delay slot emulation page */
-	base = mmap_region(NULL, STACK_TOP, PAGE_SIZE,
+	base = mmap_region(mm, NULL, STACK_TOP, PAGE_SIZE,
 			   VM_READ|VM_WRITE|VM_EXEC|
 			   VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
 			   0);
diff --git a/arch/tile/mm/elf.c b/arch/tile/mm/elf.c
index 6225cc998db1..a22768059b7a 100644
--- a/arch/tile/mm/elf.c
+++ b/arch/tile/mm/elf.c
@@ -141,7 +141,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
 	 */
 	if (!retval) {
 		unsigned long addr = MEM_USER_INTRPT;
-		addr = mmap_region(NULL, addr, INTRPT_SIZE,
+		addr = mmap_region(mm, NULL, addr, INTRPT_SIZE,
 				   VM_READ|VM_EXEC|
 				   VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC, 0);
 		if (addr > (unsigned long) -PAGE_SIZE)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index b84615b0f64c..fa483d2ff3eb 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2016,8 +2016,9 @@ extern int install_special_mapping(struct mm_struct *mm,
 
 extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
 
-extern unsigned long mmap_region(struct file *file, unsigned long addr,
-	unsigned long len, vm_flags_t vm_flags, unsigned long pgoff);
+extern unsigned long mmap_region(struct mm_struct *mm, struct file *file,
+				 unsigned long addr, unsigned long len,
+				 vm_flags_t vm_flags, unsigned long pgoff);
 extern unsigned long do_mmap(struct file *file, unsigned long addr,
 	unsigned long len, unsigned long prot, unsigned long flags,
 	vm_flags_t vm_flags, unsigned long pgoff, unsigned long *populate);
diff --git a/mm/mmap.c b/mm/mmap.c
index dc4291dcc99b..5ac276ac9807 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1447,7 +1447,7 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
 			vm_flags |= VM_NORESERVE;
 	}
 
-	addr = mmap_region(file, addr, len, vm_flags, pgoff);
+	addr = mmap_region(mm, file, addr, len, vm_flags, pgoff);
 	if (!IS_ERR_VALUE(addr) &&
 	    ((vm_flags & VM_LOCKED) ||
 	     (flags & (MAP_POPULATE | MAP_NONBLOCK)) == MAP_POPULATE))
@@ -1582,10 +1582,10 @@ static inline int accountable_mapping(struct file *file, vm_flags_t vm_flags)
 	return (vm_flags & (VM_NORESERVE | VM_SHARED | VM_WRITE)) == VM_WRITE;
 }
 
-unsigned long mmap_region(struct file *file, unsigned long addr,
-		unsigned long len, vm_flags_t vm_flags, unsigned long pgoff)
+unsigned long mmap_region(struct mm_struct *mm, struct file *file,
+		unsigned long addr, unsigned long len, vm_flags_t vm_flags,
+		unsigned long pgoff)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma, *prev;
 	int error;
 	struct rb_node **rb_link, *rb_parent;
@@ -1704,7 +1704,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 	vm_stat_account(mm, vm_flags, len >> PAGE_SHIFT);
 	if (vm_flags & VM_LOCKED) {
 		if (!((vm_flags & VM_SPECIAL) || is_vm_hugetlb_page(vma) ||
-					vma == get_gate_vma(current->mm)))
+					vma == get_gate_vma(mm)))
 			mm->locked_vm += (len >> PAGE_SHIFT);
 		else
 			vma->vm_flags &= VM_LOCKED_CLEAR_MASK;
-- 
2.12.0

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From - Thu Nov 08 21:39:41 2018
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Subject: [RFC PATCH 02/13] mm: Add mm_struct argument to 'do_mmap' and 'do_mmap_pgoff'
Date: Mon, 13 Mar 2017 15:14:04 -0700
Lines: 175
Approved: news@gmane.org
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References: <20170313221415.9375-1-till.smejkal@gmail.com>
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To: Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	Vineet Gupta <vgupta@synopsys.com>,
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	Michael Ellerman <mpe@ellerman.id.au>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/168260>

Add to the 'do_mmap' and 'do_mmap_pgoff' functions the mm_struct they
should operate on as additional argument. Before, both functions simply
used the memory map of the current task. However, with the introduction of
first class virtual address spaces, these functions also need to be usable
for other memory maps than just the one of the current process. Hence,
explicitly define during the function call which memory map to use.

Signed-off-by: Till Smejkal <till.smejkal@gmail.com>
---
 arch/x86/mm/mpx.c  |  4 ++--
 fs/aio.c           |  4 ++--
 include/linux/mm.h | 11 ++++++-----
 ipc/shm.c          |  3 ++-
 mm/mmap.c          | 16 ++++++++--------
 mm/nommu.c         |  7 ++++---
 mm/util.c          |  2 +-
 7 files changed, 25 insertions(+), 22 deletions(-)

diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index af59f808742f..99c664a97c35 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -50,8 +50,8 @@ static unsigned long mpx_mmap(unsigned long len)
 		return -EINVAL;
 
 	down_write(&mm->mmap_sem);
-	addr = do_mmap(NULL, 0, len, PROT_READ | PROT_WRITE,
-			MAP_ANONYMOUS | MAP_PRIVATE, VM_MPX, 0, &populate);
+	addr = do_mmap(mm, NULL, 0, len, PROT_READ | PROT_WRITE,
+		       MAP_ANONYMOUS | MAP_PRIVATE, VM_MPX, 0, &populate);
 	up_write(&mm->mmap_sem);
 	if (populate)
 		mm_populate(addr, populate);
diff --git a/fs/aio.c b/fs/aio.c
index 873b4ca82ccb..df9bba5a2aff 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -510,8 +510,8 @@ static int aio_setup_ring(struct kioctx *ctx)
 		return -EINTR;
 	}
 
-	ctx->mmap_base = do_mmap_pgoff(ctx->aio_ring_file, 0, ctx->mmap_size,
-				       PROT_READ | PROT_WRITE,
+	ctx->mmap_base = do_mmap_pgoff(current->mm, ctx->aio_ring_file, 0,
+				       ctx->mmap_size, PROT_READ | PROT_WRITE,
 				       MAP_SHARED, 0, &unused);
 	up_write(&mm->mmap_sem);
 	if (IS_ERR((void *)ctx->mmap_base)) {
diff --git a/include/linux/mm.h b/include/linux/mm.h
index fa483d2ff3eb..fb11be77545f 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2019,17 +2019,18 @@ extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned lo
 extern unsigned long mmap_region(struct mm_struct *mm, struct file *file,
 				 unsigned long addr, unsigned long len,
 				 vm_flags_t vm_flags, unsigned long pgoff);
-extern unsigned long do_mmap(struct file *file, unsigned long addr,
-	unsigned long len, unsigned long prot, unsigned long flags,
-	vm_flags_t vm_flags, unsigned long pgoff, unsigned long *populate);
+extern unsigned long do_mmap(struct mm_struct *mm, struct file *file,
+	unsigned long addr, unsigned long len, unsigned long prot,
+	unsigned long flags, vm_flags_t vm_flags, unsigned long pgoff,
+	unsigned long *populate);
 extern int do_munmap(struct mm_struct *, unsigned long, size_t);
 
 static inline unsigned long
-do_mmap_pgoff(struct file *file, unsigned long addr,
+do_mmap_pgoff(struct mm_struct *mm, struct file *file, unsigned long addr,
 	unsigned long len, unsigned long prot, unsigned long flags,
 	unsigned long pgoff, unsigned long *populate)
 {
-	return do_mmap(file, addr, len, prot, flags, 0, pgoff, populate);
+	return do_mmap(mm, file, addr, len, prot, flags, 0, pgoff, populate);
 }
 
 #ifdef CONFIG_MMU
diff --git a/ipc/shm.c b/ipc/shm.c
index 81203e8ba013..64c21fb32ca9 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -1222,7 +1222,8 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
 			goto invalid;
 	}
 
-	addr = do_mmap_pgoff(file, addr, size, prot, flags, 0, &populate);
+	addr = do_mmap_pgoff(mm, file, addr, size, prot, flags, 0,
+			     &populate);
 	*raddr = addr;
 	err = 0;
 	if (IS_ERR_VALUE(addr))
diff --git a/mm/mmap.c b/mm/mmap.c
index 5ac276ac9807..70028bf7b58d 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1299,14 +1299,14 @@ static inline int mlock_future_check(struct mm_struct *mm,
 }
 
 /*
- * The caller must hold down_write(&current->mm->mmap_sem).
+ * The caller must hold down_write(&mm->mmap_sem).
  */
-unsigned long do_mmap(struct file *file, unsigned long addr,
-			unsigned long len, unsigned long prot,
-			unsigned long flags, vm_flags_t vm_flags,
-			unsigned long pgoff, unsigned long *populate)
+unsigned long do_mmap(struct mm_struct *mm, struct file *file,
+		      unsigned long addr, unsigned long len,
+		      unsigned long prot, unsigned long flags,
+		      vm_flags_t vm_flags, unsigned long pgoff,
+		      unsigned long *populate)
 {
-	struct mm_struct *mm = current->mm;
 	int pkey = 0;
 
 	*populate = 0;
@@ -2779,8 +2779,8 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
 	}
 
 	file = get_file(vma->vm_file);
-	ret = do_mmap_pgoff(vma->vm_file, start, size,
-			prot, flags, pgoff, &populate);
+	ret = do_mmap_pgoff(mm, vma->vm_file, start, size,
+			    prot, flags, pgoff, &populate);
 	fput(file);
 out:
 	up_write(&mm->mmap_sem);
diff --git a/mm/nommu.c b/mm/nommu.c
index 24f9f5f39145..54825d29f50b 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1198,7 +1198,8 @@ static int do_mmap_private(struct vm_area_struct *vma,
 /*
  * handle mapping creation for uClinux
  */
-unsigned long do_mmap(struct file *file,
+unsigned long do_mmap(struct mm_struct *mm,
+			struct file *file,
 			unsigned long addr,
 			unsigned long len,
 			unsigned long prot,
@@ -1375,10 +1376,10 @@ unsigned long do_mmap(struct file *file,
 	/* okay... we have a mapping; now we have to register it */
 	result = vma->vm_start;
 
-	current->mm->total_vm += len >> PAGE_SHIFT;
+	mm->total_vm += len >> PAGE_SHIFT;
 
 share:
-	add_vma_to_mm(current->mm, vma);
+	add_vma_to_mm(mm, vma);
 
 	/* we flush the region from the icache only when the first executable
 	 * mapping of it is made  */
diff --git a/mm/util.c b/mm/util.c
index 3cb2164f4099..46d05eef9a6b 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -302,7 +302,7 @@ unsigned long vm_mmap_pgoff(struct file *file, unsigned long addr,
 	if (!ret) {
 		if (down_write_killable(&mm->mmap_sem))
 			return -EINTR;
-		ret = do_mmap_pgoff(file, addr, len, prot, flag, pgoff,
+		ret = do_mmap_pgoff(mm, file, addr, len, prot, flag, pgoff,
 				    &populate);
 		up_write(&mm->mmap_sem);
 		if (populate)
-- 
2.12.0

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From - Thu Nov 08 21:39:42 2018
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From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: [RFC PATCH 03/13] mm: Rename 'unmap_region' and add mm_struct argument
Date: Mon, 13 Mar 2017 15:14:05 -0700
Lines: 89
Approved: news@gmane.org
Message-ID: <20170313221415.9375-4-till.smejkal@gmail.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.aio.general/4938>

Rename the 'unmap_region' function to 'munmap_region' so that it uses the
same naming pattern as the do_mmap <-> mmap_region couple. In addition
also make the new 'munmap_region' function publicly available to all other
kernel sources.

In addition, also add to the function the mm_struct it should operate on
as additional argument. Before, the function simply used the memory map of
the current task. However, with the introduction of first class virtual
address spaces, munmap_region need also be able to operate on other memory
maps than just the current task's one. Accordingly, add a new argument to
the function so that one can define explicitly which memory map should be
used.

Signed-off-by: Till Smejkal <till.smejkal@gmail.com>
---
 include/linux/mm.h |  4 ++++
 mm/mmap.c          | 14 +++++---------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index fb11be77545f..71a90604d21f 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2023,6 +2023,10 @@ extern unsigned long do_mmap(struct mm_struct *mm, struct file *file,
 	unsigned long addr, unsigned long len, unsigned long prot,
 	unsigned long flags, vm_flags_t vm_flags, unsigned long pgoff,
 	unsigned long *populate);
+
+extern void munmap_region(struct mm_struct *mm, struct vm_area_struct *vma,
+			  struct vm_area_struct *prev, unsigned long start,
+			  unsigned long end);
 extern int do_munmap(struct mm_struct *, unsigned long, size_t);
 
 static inline unsigned long
diff --git a/mm/mmap.c b/mm/mmap.c
index 70028bf7b58d..ea79bc4da5b7 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -70,10 +70,6 @@ int mmap_rnd_compat_bits __read_mostly = CONFIG_ARCH_MMAP_RND_COMPAT_BITS;
 static bool ignore_rlimit_data;
 core_param(ignore_rlimit_data, ignore_rlimit_data, bool, 0644);
 
-static void unmap_region(struct mm_struct *mm,
-		struct vm_area_struct *vma, struct vm_area_struct *prev,
-		unsigned long start, unsigned long end);
-
 /* description of effects of mapping type and prot in current implementation.
  * this is due to the limited x86 page protection hardware.  The expected
  * behavior is in parens:
@@ -1731,7 +1727,7 @@ unsigned long mmap_region(struct mm_struct *mm, struct file *file,
 	fput(file);
 
 	/* Undo any partial mapping done by a device driver. */
-	unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);
+	munmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);
 	charged = 0;
 	if (vm_flags & VM_SHARED)
 		mapping_unmap_writable(file->f_mapping);
@@ -2447,9 +2443,9 @@ static void remove_vma_list(struct mm_struct *mm, struct vm_area_struct *vma)
  *
  * Called with the mm semaphore held.
  */
-static void unmap_region(struct mm_struct *mm,
-		struct vm_area_struct *vma, struct vm_area_struct *prev,
-		unsigned long start, unsigned long end)
+void munmap_region(struct mm_struct *mm, struct vm_area_struct *vma,
+		struct vm_area_struct *prev, unsigned long start,
+		unsigned long end)
 {
 	struct vm_area_struct *next = prev ? prev->vm_next : mm->mmap;
 	struct mmu_gather tlb;
@@ -2654,7 +2650,7 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
 	 * Remove the vma's, and unmap the actual pages
 	 */
 	detach_vmas_to_be_unmapped(mm, vma, prev, end);
-	unmap_region(mm, vma, prev, start, end);
+	munmap_region(mm, vma, prev, start, end);
 
 	arch_unmap(mm, vma, start, end);
 
-- 
2.12.0

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From - Thu Nov 08 21:39:42 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: [RFC PATCH 05/13] mm: Add mm_struct argument to 'mm_populate' and '__mm_populate'
Date: Mon, 13 Mar 2017 15:14:07 -0700
Lines: 262
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.aio.general/4939>

Add to the 'mm_populate' and '__mm_populate' functions as additional
argument which mm_struct they should use during their execution. Before,
these functions simply used the memory map of the current task. However,
with the introduction of first class virtual address spaces, both
functions also need to be able to operate on other memory maps than just
the one of the current task. Accordingly, it is now possible to specify
explicitly which memory map these functions should use via an additional
argument.

Signed-off-by: Till Smejkal <till.smejkal@gmail.com>
---
 arch/x86/mm/mpx.c  |  2 +-
 include/linux/mm.h | 13 ++++++++-----
 ipc/shm.c          |  9 +++++----
 mm/gup.c           |  4 ++--
 mm/mlock.c         | 21 +++++++++++----------
 mm/mmap.c          |  6 +++---
 mm/mremap.c        |  2 +-
 mm/util.c          |  2 +-
 8 files changed, 32 insertions(+), 27 deletions(-)

diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index 99c664a97c35..b46f7cdbdad8 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -54,7 +54,7 @@ static unsigned long mpx_mmap(unsigned long len)
 		       MAP_ANONYMOUS | MAP_PRIVATE, VM_MPX, 0, &populate);
 	up_write(&mm->mmap_sem);
 	if (populate)
-		mm_populate(addr, populate);
+		mm_populate(mm, addr, populate);
 
 	return addr;
 }
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1520da8f9c67..92925d97da20 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2040,15 +2040,18 @@ do_mmap_pgoff(struct mm_struct *mm, struct file *file, unsigned long addr,
 }
 
 #ifdef CONFIG_MMU
-extern int __mm_populate(unsigned long addr, unsigned long len,
-			 int ignore_errors);
-static inline void mm_populate(unsigned long addr, unsigned long len)
+extern int __mm_populate(struct mm_struct *mm, unsigned long addr,
+			 unsigned long len, int ignore_errors);
+static inline void mm_populate(struct mm_struct *mm, unsigned long addr,
+			       unsigned long len)
 {
 	/* Ignore errors */
-	(void) __mm_populate(addr, len, 1);
+	(void) __mm_populate(mm, addr, len, 1);
 }
 #else
-static inline void mm_populate(unsigned long addr, unsigned long len) {}
+static inline void mm_populate(struct mm_struct *mm, unsigned long addr,
+			       unsigned long len)
+{}
 #endif
 
 /* These take the mm semaphore themselves */
diff --git a/ipc/shm.c b/ipc/shm.c
index 2fd73cda4ec8..be692e0abe79 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -1106,6 +1106,7 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
 	struct shm_file_data *sfd;
 	struct path path;
 	fmode_t f_mode;
+	struct mm_struct *mm = current->mm;
 	unsigned long populate = 0;
 
 	err = -EINVAL;
@@ -1208,7 +1209,7 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
 	if (err)
 		goto out_fput;
 
-	if (down_write_killable(&current->mm->mmap_sem)) {
+	if (down_write_killable(&mm->mmap_sem)) {
 		err = -EINTR;
 		goto out_fput;
 	}
@@ -1218,7 +1219,7 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
 		if (addr + size < addr)
 			goto invalid;
 
-		if (find_vma_intersection(current->mm, addr, addr + size))
+		if (find_vma_intersection(mm, addr, addr + size))
 			goto invalid;
 	}
 
@@ -1229,9 +1230,9 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
 	if (IS_ERR_VALUE(addr))
 		err = (long)addr;
 invalid:
-	up_write(&current->mm->mmap_sem);
+	up_write(&mm->mmap_sem);
 	if (populate)
-		mm_populate(addr, populate);
+		mm_populate(mm, addr, populate);
 
 out_fput:
 	fput(file);
diff --git a/mm/gup.c b/mm/gup.c
index 55315555489d..ca5ba2703b40 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1053,9 +1053,9 @@ long populate_vma_page_range(struct vm_area_struct *vma,
  * flags. VMAs must be already marked with the desired vm_flags, and
  * mmap_sem must not be held.
  */
-int __mm_populate(unsigned long start, unsigned long len, int ignore_errors)
+int __mm_populate(struct mm_struct *mm, unsigned long start, unsigned long len,
+		  int ignore_errors)
 {
-	struct mm_struct *mm = current->mm;
 	unsigned long end, nstart, nend;
 	struct vm_area_struct *vma = NULL;
 	int locked = 0;
diff --git a/mm/mlock.c b/mm/mlock.c
index cdbed8aaa426..9d74948c7b22 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -664,6 +664,7 @@ static int count_mm_mlocked_page_nr(struct mm_struct *mm,
 
 static __must_check int do_mlock(unsigned long start, size_t len, vm_flags_t flags)
 {
+	struct mm_struct *mm = current->mm;
 	unsigned long locked;
 	unsigned long lock_limit;
 	int error = -ENOMEM;
@@ -680,10 +681,10 @@ static __must_check int do_mlock(unsigned long start, size_t len, vm_flags_t fla
 	lock_limit >>= PAGE_SHIFT;
 	locked = len >> PAGE_SHIFT;
 
-	if (down_write_killable(&current->mm->mmap_sem))
+	if (down_write_killable(&mm->mmap_sem))
 		return -EINTR;
 
-	locked += current->mm->locked_vm;
+	locked += mm->locked_vm;
 	if ((locked > lock_limit) && (!capable(CAP_IPC_LOCK))) {
 		/*
 		 * It is possible that the regions requested intersect with
@@ -691,19 +692,18 @@ static __must_check int do_mlock(unsigned long start, size_t len, vm_flags_t fla
 		 * should not be counted to new mlock increment count. So check
 		 * and adjust locked count if necessary.
 		 */
-		locked -= count_mm_mlocked_page_nr(current->mm,
-				start, len);
+		locked -= count_mm_mlocked_page_nr(mm, start, len);
 	}
 
 	/* check against resource limits */
 	if ((locked <= lock_limit) || capable(CAP_IPC_LOCK))
 		error = apply_vma_lock_flags(start, len, flags);
 
-	up_write(&current->mm->mmap_sem);
+	up_write(&mm->mmap_sem);
 	if (error)
 		return error;
 
-	error = __mm_populate(start, len, 0);
+	error = __mm_populate(mm, start, len, 0);
 	if (error)
 		return __mlock_posix_error_return(error);
 	return 0;
@@ -790,6 +790,7 @@ static int apply_mlockall_flags(int flags)
 
 SYSCALL_DEFINE1(mlockall, int, flags)
 {
+	struct mm_struct *mm = current->mm;
 	unsigned long lock_limit;
 	int ret;
 
@@ -805,16 +806,16 @@ SYSCALL_DEFINE1(mlockall, int, flags)
 	lock_limit = rlimit(RLIMIT_MEMLOCK);
 	lock_limit >>= PAGE_SHIFT;
 
-	if (down_write_killable(&current->mm->mmap_sem))
+	if (down_write_killable(&mm->mmap_sem))
 		return -EINTR;
 
 	ret = -ENOMEM;
-	if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
+	if (!(flags & MCL_CURRENT) || (mm->total_vm <= lock_limit) ||
 	    capable(CAP_IPC_LOCK))
 		ret = apply_mlockall_flags(flags);
-	up_write(&current->mm->mmap_sem);
+	up_write(&mm->mmap_sem);
 	if (!ret && (flags & MCL_CURRENT))
-		mm_populate(0, TASK_SIZE);
+		mm_populate(mm, 0, TASK_SIZE);
 
 	return ret;
 }
diff --git a/mm/mmap.c b/mm/mmap.c
index 8a73dc458e69..3f60c8ebd6b6 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -236,7 +236,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
 	populate = newbrk > oldbrk && (mm->def_flags & VM_LOCKED) != 0;
 	up_write(&mm->mmap_sem);
 	if (populate)
-		mm_populate(oldbrk, newbrk - oldbrk);
+		mm_populate(mm, oldbrk, newbrk - oldbrk);
 	return brk;
 
 out:
@@ -2781,7 +2781,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
 out:
 	up_write(&mm->mmap_sem);
 	if (populate)
-		mm_populate(ret, populate);
+		mm_populate(mm, ret, populate);
 	if (!IS_ERR_VALUE(ret))
 		ret = 0;
 	return ret;
@@ -2898,7 +2898,7 @@ int vm_brk(unsigned long addr, unsigned long len)
 	populate = ((mm->def_flags & VM_LOCKED) != 0);
 	up_write(&mm->mmap_sem);
 	if (populate && !ret)
-		mm_populate(addr, len);
+		mm_populate(mm, addr, len);
 	return ret;
 }
 EXPORT_SYMBOL(vm_brk);
diff --git a/mm/mremap.c b/mm/mremap.c
index f085eed57bac..0f18ec452441 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -602,6 +602,6 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
 	}
 	up_write(&current->mm->mmap_sem);
 	if (locked && new_len > old_len)
-		mm_populate(new_addr + old_len, new_len - old_len);
+		mm_populate(mm, new_addr + old_len, new_len - old_len);
 	return ret;
 }
diff --git a/mm/util.c b/mm/util.c
index 46d05eef9a6b..7b1116b400a3 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -306,7 +306,7 @@ unsigned long vm_mmap_pgoff(struct file *file, unsigned long addr,
 				    &populate);
 		up_write(&mm->mmap_sem);
 		if (populate)
-			mm_populate(ret, populate);
+			mm_populate(mm, ret, populate);
 	}
 	return ret;
 }
-- 
2.12.0

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From - Thu Nov 08 21:39:42 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: [RFC PATCH 04/13] mm: Add mm_struct argument to 'get_unmapped_area' and 'vm_unmapped_area'
Date: Mon, 13 Mar 2017 15:14:06 -0700
Lines: 2350
Approved: news@gmane.org
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	linux-api@vger.kernel.org,
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	alsa-devel@alsa-project.org
To: Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	Vineet Gupta <vgupta@synopsys.com>,
	Russell King <linux@armlinux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Steven Miao <realmz6@gmail.com>,
	Richard Kuo <rkuo@codeaurora.org>,
	Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
	James Hogan <james.hogan@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	"David S. Miller" <davem@dave
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Xref: news.gmane.org gmane.linux.kernel.aio.general:4940 gmane.linux.kernel:2431236 gmane.linux.ports.alpha:4126 gmane.linux.kernel.arc:2215 gmane.linux.ports.arm.kernel:564750 gmane.linux.ports.hexagon:1151 gmane.linux.ports.ia64:27690 gmane.linux.kernel.metag:1260 gmane.linux.ports.mips.general:58336 gmane.linux.ports.parisc:27318 gmane.linux.ports.ppc64.devel:139529 gmane.linux.ports.sh.devel:55124 gmane.linux.ports.sparc:24721 gmane.linux.drivers.video-input-infrastructure:114744 gmane.linux.drivers.mtd:72535 gmane.linux.usb.general:156111 gmane.linux.file-systems:119081 gmane.linux.kernel.mm:168263 gmane.linux.kernel.api:22522 gmane.linux.kernel.cross-arch:35530 gmane.linux.alsa.devel:165308
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.aio.general/4940>

Add the mm_struct that for which an unmapped area should be found as
explicit argument to the 'get_unmapped_area' function. Previously, the
function simply search for an unmapped area in the memory map of the
 current task. However, with the introduction of first class virtual
address spaces, it is necessary that get_unmapped_area also can look for
unmapped area in memory maps other than the one of the current task.

Changing the signature of the generic 'get_unmapped_area' function also
requires that all the 'arch_get_unmapped_area' functions as well as the
'vm_unmapped_area' function with its dependents have to take the memory
map that they should work on as additional argument. Simply using the one
of the current task, as these functions did before, is not correct anymore
and leads to incorrect results.

Signed-off-by: Till Smejkal <till.smejkal@gmail.com>
---
 arch/alpha/kernel/osf_sys.c                  | 19 ++++++------
 arch/arc/mm/mmap.c                           |  8 ++---
 arch/arm/kernel/process.c                    |  2 +-
 arch/arm/mm/mmap.c                           | 19 ++++++------
 arch/arm64/kernel/vdso.c                     |  2 +-
 arch/blackfin/include/asm/pgtable.h          |  3 +-
 arch/blackfin/kernel/sys_bfin.c              |  5 ++--
 arch/frv/mm/elf-fdpic.c                      | 11 +++----
 arch/hexagon/kernel/vdso.c                   |  2 +-
 arch/ia64/kernel/perfmon.c                   |  3 +-
 arch/ia64/kernel/sys_ia64.c                  |  6 ++--
 arch/ia64/mm/hugetlbpage.c                   |  7 +++--
 arch/metag/mm/hugetlbpage.c                  | 11 +++----
 arch/mips/kernel/vdso.c                      |  2 +-
 arch/mips/mm/mmap.c                          | 27 +++++++++--------
 arch/parisc/kernel/sys_parisc.c              | 19 ++++++------
 arch/parisc/mm/hugetlbpage.c                 |  7 +++--
 arch/powerpc/include/asm/book3s/64/hugetlb.h |  6 ++--
 arch/powerpc/include/asm/page_64.h           |  3 +-
 arch/powerpc/kernel/vdso.c                   |  2 +-
 arch/powerpc/mm/hugetlbpage-radix.c          |  9 +++---
 arch/powerpc/mm/hugetlbpage.c                |  9 +++---
 arch/powerpc/mm/mmap.c                       | 17 +++++------
 arch/powerpc/mm/slice.c                      | 25 ++++++++--------
 arch/s390/kernel/vdso.c                      |  3 +-
 arch/s390/mm/mmap.c                          | 42 +++++++++++++-------------
 arch/sh/kernel/vsyscall/vsyscall.c           |  2 +-
 arch/sh/mm/mmap.c                            | 19 ++++++------
 arch/sparc/include/asm/pgtable_64.h          |  4 +--
 arch/sparc/kernel/sys_sparc_32.c             |  6 ++--
 arch/sparc/kernel/sys_sparc_64.c             | 31 +++++++++++---------
 arch/sparc/mm/hugetlbpage.c                  | 26 ++++++++--------
 arch/tile/kernel/vdso.c                      |  2 +-
 arch/tile/mm/hugetlbpage.c                   | 26 ++++++++--------
 arch/x86/entry/vdso/vma.c                    |  2 +-
 arch/x86/kernel/sys_x86_64.c                 | 19 ++++++------
 arch/x86/mm/hugetlbpage.c                    | 26 ++++++++--------
 arch/xtensa/kernel/syscall.c                 |  7 +++--
 drivers/char/mem.c                           | 15 ++++++----
 drivers/dax/dax.c                            | 10 +++----
 drivers/media/usb/uvc/uvc_v4l2.c             |  6 ++--
 drivers/media/v4l2-core/v4l2-dev.c           |  8 ++---
 drivers/media/v4l2-core/videobuf2-v4l2.c     |  5 ++--
 drivers/mtd/mtdchar.c                        |  3 +-
 drivers/usb/gadget/function/uvc_v4l2.c       |  3 +-
 fs/hugetlbfs/inode.c                         |  8 ++---
 fs/proc/inode.c                              | 10 +++----
 fs/ramfs/file-mmu.c                          |  5 ++--
 fs/ramfs/file-nommu.c                        | 10 ++++---
 fs/romfs/mmap-nommu.c                        |  3 +-
 include/linux/fs.h                           |  2 +-
 include/linux/huge_mm.h                      |  6 ++--
 include/linux/hugetlb.h                      |  5 ++--
 include/linux/mm.h                           | 16 ++++++----
 include/linux/mm_types.h                     |  7 +++--
 include/linux/sched.h                        | 10 +++----
 include/linux/shmem_fs.h                     |  5 ++--
 include/media/v4l2-dev.h                     |  3 +-
 include/media/videobuf2-v4l2.h               |  5 ++--
 ipc/shm.c                                    | 10 +++----
 kernel/events/uprobes.c                      |  2 +-
 mm/huge_memory.c                             | 18 +++++++-----
 mm/mmap.c                                    | 44 ++++++++++++++--------------
 mm/mremap.c                                  | 11 +++----
 mm/nommu.c                                   | 10 ++++---
 mm/shmem.c                                   | 14 ++++-----
 sound/core/pcm_native.c                      |  3 +-
 67 files changed, 370 insertions(+), 326 deletions(-)

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 54d8616644e2..281109bcdc5d 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1308,8 +1308,8 @@ SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p)
    generic version except that we know how to honor ADDR_LIMIT_32BIT.  */
 
 static unsigned long
-arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
-		         unsigned long limit)
+arch_get_unmapped_area_1(struct mm_struct *mm, unsigned long addr,
+			 unsigned long len, unsigned long limit)
 {
 	struct vm_unmapped_area_info info;
 
@@ -1319,13 +1319,13 @@ arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
 	info.high_limit = limit;
 	info.align_mask = 0;
 	info.align_offset = 0;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 
 unsigned long
-arch_get_unmapped_area(struct file *filp, unsigned long addr,
-		       unsigned long len, unsigned long pgoff,
-		       unsigned long flags)
+arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+		       unsigned long addr, unsigned long len,
+		       unsigned long pgoff, unsigned long flags)
 {
 	unsigned long limit;
 
@@ -1352,19 +1352,20 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	   this feature should be incorporated into all ports?  */
 
 	if (addr) {
-		addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
+		addr = arch_get_unmapped_area_1 (mm, PAGE_ALIGN(addr), len,
+						 limit);
 		if (addr != (unsigned long) -ENOMEM)
 			return addr;
 	}
 
 	/* Next, try allocating at TASK_UNMAPPED_BASE.  */
-	addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
+	addr = arch_get_unmapped_area_1 (mm, PAGE_ALIGN(TASK_UNMAPPED_BASE),
 					 len, limit);
 	if (addr != (unsigned long) -ENOMEM)
 		return addr;
 
 	/* Finally, try allocating in low memory.  */
-	addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
+	addr = arch_get_unmapped_area_1 (mm, PAGE_SIZE, len, limit);
 
 	return addr;
 }
diff --git a/arch/arc/mm/mmap.c b/arch/arc/mm/mmap.c
index 2e06d56e987b..2fa95d302b02 100644
--- a/arch/arc/mm/mmap.c
+++ b/arch/arc/mm/mmap.c
@@ -28,10 +28,10 @@
  * SHMLBA bytes.
  */
 unsigned long
-arch_get_unmapped_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	int do_align = 0;
 	int aliasing = cache_is_vipt_aliasing();
@@ -74,5 +74,5 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.high_limit = TASK_SIZE;
 	info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 91d2d5b01414..4c6f9595fdbe 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -426,7 +426,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	if (down_write_killable(&mm->mmap_sem))
 		return -EINTR;
 	hint = sigpage_addr(mm, npages);
-	addr = get_unmapped_area(NULL, hint, npages << PAGE_SHIFT, 0, 0);
+	addr = get_unmapped_area(mm, NULL, hint, npages << PAGE_SHIFT, 0, 0);
 	if (IS_ERR_VALUE(addr)) {
 		ret = addr;
 		goto up_fail;
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 66353caa35b9..48b49bfdd1d7 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -52,10 +52,10 @@ static unsigned long mmap_base(unsigned long rnd)
  * in the VIVT case, we optimise out the alignment rules.
  */
 unsigned long
-arch_get_unmapped_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	int do_align = 0;
 	int aliasing = cache_is_vipt_aliasing();
@@ -99,16 +99,15 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.high_limit = TASK_SIZE;
 	info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 
 unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-			const unsigned long len, const unsigned long pgoff,
-			const unsigned long flags)
+arch_get_unmapped_area_topdown(struct mm_struct *mm, struct file *filp,
+			const unsigned long addr0, const unsigned long len,
+			const unsigned long pgoff, const unsigned long flags)
 {
 	struct vm_area_struct *vma;
-	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	int do_align = 0;
 	int aliasing = cache_is_vipt_aliasing();
@@ -150,7 +149,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.high_limit = mm->mmap_base;
 	info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 
 	/*
 	 * A failed mmap() very likely causes application failure,
@@ -163,7 +162,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		info.flags = 0;
 		info.low_limit = mm->mmap_base;
 		info.high_limit = TASK_SIZE;
-		addr = vm_unmapped_area(&info);
+		addr = vm_unmapped_area(mm, &info);
 	}
 
 	return addr;
diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index a2c2478e7d78..403e71456297 100644
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -166,7 +166,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
 
 	if (down_write_killable(&mm->mmap_sem))
 		return -EINTR;
-	vdso_base = get_unmapped_area(NULL, 0, vdso_mapping_len, 0, 0);
+	vdso_base = get_unmapped_area(mm, NULL, 0, vdso_mapping_len, 0, 0);
 	if (IS_ERR_VALUE(vdso_base)) {
 		ret = ERR_PTR(vdso_base);
 		goto up_fail;
diff --git a/arch/blackfin/include/asm/pgtable.h b/arch/blackfin/include/asm/pgtable.h
index c1ee3d6533fb..fe2c5d41d62a 100644
--- a/arch/blackfin/include/asm/pgtable.h
+++ b/arch/blackfin/include/asm/pgtable.h
@@ -92,7 +92,8 @@ extern char empty_zero_page[];
 #define	VMALLOC_END	0xffffffff
 
 /* provide a special get_unmapped_area for framebuffer mmaps of nommu */
-extern unsigned long get_fb_unmapped_area(struct file *filp, unsigned long,
+extern unsigned long get_fb_unmapped_area(struct mm_struct *mm,
+					  struct file *filp, unsigned long,
 					  unsigned long, unsigned long,
 					  unsigned long);
 #define HAVE_ARCH_FB_UNMAPPED_AREA
diff --git a/arch/blackfin/kernel/sys_bfin.c b/arch/blackfin/kernel/sys_bfin.c
index d998383cb956..65acfd2bc8d1 100644
--- a/arch/blackfin/kernel/sys_bfin.c
+++ b/arch/blackfin/kernel/sys_bfin.c
@@ -42,8 +42,9 @@ asmlinkage void *sys_dma_memcpy(void *dest, const void *src, size_t len)
 #if defined(CONFIG_FB) || defined(CONFIG_FB_MODULE)
 #include <linux/fb.h>
 #include <linux/export.h>
-unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr,
-	unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long get_fb_unmapped_area(struct mm_struct *mm, struct file *filp,
+	unsigned long orig_addr, unsigned long len, unsigned long pgoff,
+	unsigned long flags)
 {
 	struct fb_info *info = filp->private_data;
 	return (unsigned long)info->screen_base;
diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c
index 836f14707a62..c7158d8883e2 100644
--- a/arch/frv/mm/elf-fdpic.c
+++ b/arch/frv/mm/elf-fdpic.c
@@ -56,7 +56,8 @@ void elf_fdpic_arch_lay_out_mm(struct elf_fdpic_params *exec_params,
  * place non-fixed mmaps firstly in the bottom part of memory, working up, and then in the top part
  * of memory, working down
  */
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len,
+unsigned long arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+				     unsigned long addr, unsigned long len,
 				     unsigned long pgoff, unsigned long flags)
 {
 	struct vm_area_struct *vma;
@@ -72,7 +73,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	/* only honour a hint if we're not going to clobber something doing so */
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
-		vma = find_vma(current->mm, addr);
+		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
 		    (!vma || addr + len <= vma->vm_start))
 			goto success;
@@ -82,10 +83,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	info.flags = 0;
 	info.length = len;
 	info.low_limit = PAGE_SIZE;
-	info.high_limit = (current->mm->start_stack - 0x00200000);
+	info.high_limit = (mm->start_stack - 0x00200000);
 	info.align_mask = 0;
 	info.align_offset = 0;
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 	if (!(addr & ~PAGE_MASK))
 		goto success;
 	VM_BUG_ON(addr != -ENOMEM);
@@ -93,7 +94,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	/* search from just above the WorkRAM area to the top of memory */
 	info.low_limit = PAGE_ALIGN(0x80000000);
 	info.high_limit = TASK_SIZE;
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 	if (!(addr & ~PAGE_MASK))
 		goto success;
 	VM_BUG_ON(addr != -ENOMEM);
diff --git a/arch/hexagon/kernel/vdso.c b/arch/hexagon/kernel/vdso.c
index 3ea968415539..1ec46d4dd0e6 100644
--- a/arch/hexagon/kernel/vdso.c
+++ b/arch/hexagon/kernel/vdso.c
@@ -71,7 +71,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	/* Try to get it loaded right near ld.so/glibc. */
 	vdso_base = STACK_TOP;
 
-	vdso_base = get_unmapped_area(NULL, vdso_base, PAGE_SIZE, 0, 0);
+	vdso_base = get_unmapped_area(mm, NULL, vdso_base, PAGE_SIZE, 0, 0);
 	if (IS_ERR_VALUE(vdso_base)) {
 		ret = vdso_base;
 		goto up_fail;
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 677a86826771..8a5cb50e698f 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -2308,7 +2308,8 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t
 	down_write(&task->mm->mmap_sem);
 
 	/* find some free area in address space, must have mmap sem held */
-	vma->vm_start = get_unmapped_area(NULL, 0, size, 0, MAP_PRIVATE|MAP_ANONYMOUS);
+	vma->vm_start = get_unmapped_area(mm, NULL, 0, size, 0,
+					  MAP_PRIVATE|MAP_ANONYMOUS);
 	if (IS_ERR_VALUE(vma->vm_start)) {
 		DPRINT(("Cannot find unmapped area for size %ld\n", size));
 		up_write(&task->mm->mmap_sem);
diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index a09c12230bc5..2f33e1c9d002 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -21,12 +21,12 @@
 #include <linux/uaccess.h>
 
 unsigned long
-arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len,
+arch_get_unmapped_area (struct mm_struct *mm, struct file *filp,
+			unsigned long addr, unsigned long len,
 			unsigned long pgoff, unsigned long flags)
 {
 	long map_shared = (flags & MAP_SHARED);
 	unsigned long align_mask = 0;
-	struct mm_struct *mm = current->mm;
 	struct vm_unmapped_area_info info;
 
 	if (len > RGN_MAP_LIMIT)
@@ -61,7 +61,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 	info.high_limit = TASK_SIZE;
 	info.align_mask = align_mask;
 	info.align_offset = 0;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 
 asmlinkage long
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
index 85de86d36fdf..fd9ff12b37f4 100644
--- a/arch/ia64/mm/hugetlbpage.c
+++ b/arch/ia64/mm/hugetlbpage.c
@@ -134,8 +134,9 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb,
 	free_pgd_range(tlb, addr, end, floor, ceiling);
 }
 
-unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
-		unsigned long pgoff, unsigned long flags)
+unsigned long hugetlb_get_unmapped_area(struct mm_struct *mm, struct file *file,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
 	struct vm_unmapped_area_info info;
 
@@ -161,7 +162,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
 	info.high_limit = HPAGE_REGION_BASE + RGN_MAP_LIMIT;
 	info.align_mask = PAGE_MASK & (HPAGE_SIZE - 1);
 	info.align_offset = 0;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 
 static int __init hugetlb_setup_sz(char *str)
diff --git a/arch/metag/mm/hugetlbpage.c b/arch/metag/mm/hugetlbpage.c
index db1b7da91e4f..4bf5b3c1ae7e 100644
--- a/arch/metag/mm/hugetlbpage.c
+++ b/arch/metag/mm/hugetlbpage.c
@@ -179,7 +179,7 @@ hugetlb_get_unmapped_area_existing(unsigned long len)
 
 /* Do a full search to find an area without any nearby normal pages. */
 static unsigned long
-hugetlb_get_unmapped_area_new_pmd(unsigned long len)
+hugetlb_get_unmapped_area_new_pmd(struct mm_struct *mm, unsigned long len)
 {
 	struct vm_unmapped_area_info info;
 
@@ -189,12 +189,13 @@ hugetlb_get_unmapped_area_new_pmd(unsigned long len)
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & HUGEPT_MASK;
 	info.align_offset = 0;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 
 unsigned long
-hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+hugetlb_get_unmapped_area(struct mm_struct *mm, struct file *file,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
 	struct hstate *h = hstate_file(file);
 
@@ -227,7 +228,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 	 * Find an unmapped naturally aligned set of 4MB blocks that we can use
 	 * for huge pages.
 	 */
-	return hugetlb_get_unmapped_area_new_pmd(len);
+	return hugetlb_get_unmapped_area_new_pmd(mm, len);
 }
 
 #endif /*HAVE_ARCH_HUGETLB_UNMAPPED_AREA*/
diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c
index 9631b42908f3..05d87680a05a 100644
--- a/arch/mips/kernel/vdso.c
+++ b/arch/mips/kernel/vdso.c
@@ -129,7 +129,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	vvar_size = gic_size + PAGE_SIZE;
 	size = vvar_size + image->size;
 
-	base = get_unmapped_area(NULL, 0, size, 0, 0);
+	base = get_unmapped_area(mm, NULL, 0, size, 0, 0);
 	if (IS_ERR_VALUE(base)) {
 		ret = base;
 		goto out;
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index d08ea3ff0f53..86a8cb07a584 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -51,11 +51,11 @@ static unsigned long mmap_base(unsigned long rnd)
 
 enum mmap_allocation_direction {UP, DOWN};
 
-static unsigned long arch_get_unmapped_area_common(struct file *filp,
-	unsigned long addr0, unsigned long len, unsigned long pgoff,
-	unsigned long flags, enum mmap_allocation_direction dir)
+static unsigned long arch_get_unmapped_area_common(struct mm_struct *mm,
+	struct file *filp, unsigned long addr0, unsigned long len,
+	unsigned long pgoff, unsigned long flags,
+	enum mmap_allocation_direction dir)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	unsigned long addr = addr0;
 	int do_color_align;
@@ -104,7 +104,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
 		info.flags = VM_UNMAPPED_AREA_TOPDOWN;
 		info.low_limit = PAGE_SIZE;
 		info.high_limit = mm->mmap_base;
-		addr = vm_unmapped_area(&info);
+		addr = vm_unmapped_area(mm, &info);
 
 		if (!(addr & ~PAGE_MASK))
 			return addr;
@@ -120,13 +120,14 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
 	info.flags = 0;
 	info.low_limit = mm->mmap_base;
 	info.high_limit = TASK_SIZE;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr0,
-	unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+	unsigned long addr0, unsigned long len, unsigned long pgoff,
+	unsigned long flags)
 {
-	return arch_get_unmapped_area_common(filp,
+	return arch_get_unmapped_area_common(mm, filp,
 			addr0, len, pgoff, flags, UP);
 }
 
@@ -134,11 +135,11 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr0,
  * There is no need to export this but sched.h declares the function as
  * extern so making it static here results in an error.
  */
-unsigned long arch_get_unmapped_area_topdown(struct file *filp,
-	unsigned long addr0, unsigned long len, unsigned long pgoff,
-	unsigned long flags)
+unsigned long arch_get_unmapped_area_topdown(struct mm_struct *mm,
+	struct file *filp, unsigned long addr0, unsigned long len,
+	unsigned long pgoff, unsigned long flags)
 {
-	return arch_get_unmapped_area_common(filp,
+	return arch_get_unmapped_area_common(mm, filp,
 			addr0, len, pgoff, flags, DOWN);
 }
 
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index bf3294171230..68664e9a3317 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -84,10 +84,10 @@ static unsigned long mmap_upper_limit(void)
 }
 
 
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	unsigned long task_size = TASK_SIZE;
 	int do_color_align, last_mmap;
@@ -127,7 +127,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.high_limit = mmap_upper_limit();
 	info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
 	info.align_offset = shared_align_offset(last_mmap, pgoff);
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 
 found_addr:
 	if (do_color_align && !last_mmap && !(addr & ~PAGE_MASK))
@@ -137,12 +137,11 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 }
 
 unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-			  const unsigned long len, const unsigned long pgoff,
-			  const unsigned long flags)
+arch_get_unmapped_area_topdown(struct mm_struct *mm, struct file *filp,
+			  const unsigned long addr0, const unsigned long len,
+			  const unsigned long pgoff, const unsigned long flags)
 {
 	struct vm_area_struct *vma;
-	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	int do_color_align, last_mmap;
 	struct vm_unmapped_area_info info;
@@ -187,7 +186,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.high_limit = mm->mmap_base;
 	info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
 	info.align_offset = shared_align_offset(last_mmap, pgoff);
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 	if (!(addr & ~PAGE_MASK))
 		goto found_addr;
 	VM_BUG_ON(addr != -ENOMEM);
@@ -198,7 +197,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	 * can happen with large stack limits and large mmap()
 	 * allocations.
 	 */
-	return arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
+	return arch_get_unmapped_area(mm, filp, addr0, len, pgoff, flags);
 
 found_addr:
 	if (do_color_align && !last_mmap && !(addr & ~PAGE_MASK))
diff --git a/arch/parisc/mm/hugetlbpage.c b/arch/parisc/mm/hugetlbpage.c
index 5d6eea925cf4..a0f93122e142 100644
--- a/arch/parisc/mm/hugetlbpage.c
+++ b/arch/parisc/mm/hugetlbpage.c
@@ -21,8 +21,9 @@
 
 
 unsigned long
-hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+hugetlb_get_unmapped_area(struct mm_struct *mm, struct file *file,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
 	struct hstate *h = hstate_file(file);
 
@@ -39,7 +40,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 		addr = ALIGN(addr, huge_page_size(h));
 
 	/* we need to make sure the colouring is OK */
-	return arch_get_unmapped_area(file, addr, len, pgoff, flags);
+	return arch_get_unmapped_area(mm, file, addr, len, pgoff, flags);
 }
 
 
diff --git a/arch/powerpc/include/asm/book3s/64/hugetlb.h b/arch/powerpc/include/asm/book3s/64/hugetlb.h
index c62f14d0bec1..5ff88a3d946e 100644
--- a/arch/powerpc/include/asm/book3s/64/hugetlb.h
+++ b/arch/powerpc/include/asm/book3s/64/hugetlb.h
@@ -8,9 +8,9 @@
 void radix__flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
 void radix__local_flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
 extern unsigned long
-radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
-				unsigned long len, unsigned long pgoff,
-				unsigned long flags);
+radix__hugetlb_get_unmapped_area(struct mm_struct *mm, struct file *file,
+				unsigned long addr, unsigned long len,
+				unsigned long pgoff, unsigned long flags);
 
 static inline int hstate_get_psize(struct hstate *hstate)
 {
diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h
index dd5f0712afa2..1ac2c5814d14 100644
--- a/arch/powerpc/include/asm/page_64.h
+++ b/arch/powerpc/include/asm/page_64.h
@@ -115,7 +115,8 @@ struct slice_mask {
 
 struct mm_struct;
 
-extern unsigned long slice_get_unmapped_area(unsigned long addr,
+extern unsigned long slice_get_unmapped_area(struct mm_struct *mm,
+					     unsigned long addr,
 					     unsigned long len,
 					     unsigned long flags,
 					     unsigned int psize,
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 4111d30badfa..3f7c4b334620 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -198,7 +198,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	 */
 	if (down_write_killable(&mm->mmap_sem))
 		return -EINTR;
-	vdso_base = get_unmapped_area(NULL, vdso_base,
+	vdso_base = get_unmapped_area(mm, NULL, vdso_base,
 				      (vdso_pages << PAGE_SHIFT) +
 				      ((VDSO_ALIGNMENT - 1) & PAGE_MASK),
 				      0, 0);
diff --git a/arch/powerpc/mm/hugetlbpage-radix.c b/arch/powerpc/mm/hugetlbpage-radix.c
index 35254a678456..86e99682033a 100644
--- a/arch/powerpc/mm/hugetlbpage-radix.c
+++ b/arch/powerpc/mm/hugetlbpage-radix.c
@@ -41,11 +41,10 @@ void radix__flush_hugetlb_tlb_range(struct vm_area_struct *vma, unsigned long st
  * ie, use topdown or not based on mmap_is_legacy check ?
  */
 unsigned long
-radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
-				unsigned long len, unsigned long pgoff,
-				unsigned long flags)
+radix__hugetlb_get_unmapped_area(struct mm_struct *mm, struct file *file,
+				unsigned long addr, unsigned long len,
+				unsigned long pgoff, unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	struct hstate *h = hstate_file(file);
 	struct vm_unmapped_area_info info;
@@ -78,5 +77,5 @@ radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 	info.high_limit = current->mm->mmap_base;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 8c3389cbcd12..817bf97e59cc 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -698,17 +698,18 @@ int gup_huge_pd(hugepd_t hugepd, unsigned long addr, unsigned pdshift,
 }
 
 #ifdef CONFIG_PPC_MM_SLICES
-unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
-					unsigned long len, unsigned long pgoff,
+unsigned long hugetlb_get_unmapped_area(struct mm_struct *mm, struct file *file,
+					unsigned long addr, unsigned long len,
+					unsigned long pgoff,
 					unsigned long flags)
 {
 	struct hstate *hstate = hstate_file(file);
 	int mmu_psize = shift_to_mmu_psize(huge_page_shift(hstate));
 
 	if (radix_enabled())
-		return radix__hugetlb_get_unmapped_area(file, addr, len,
+		return radix__hugetlb_get_unmapped_area(mm, file, addr, len,
 						       pgoff, flags);
-	return slice_get_unmapped_area(addr, len, flags, mmu_psize, 1);
+	return slice_get_unmapped_area(mm, addr, len, flags, mmu_psize, 1);
 }
 #endif
 
diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
index 2f1e44362198..b05ad3e33c40 100644
--- a/arch/powerpc/mm/mmap.c
+++ b/arch/powerpc/mm/mmap.c
@@ -88,11 +88,10 @@ static inline unsigned long mmap_base(unsigned long rnd)
  * HAVE_ARCH_UNMAPPED_AREA
  */
 static unsigned long
-radix__arch_get_unmapped_area(struct file *filp, unsigned long addr,
-			     unsigned long len, unsigned long pgoff,
-			     unsigned long flags)
+radix__arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+			     unsigned long addr, unsigned long len,
+			     unsigned long pgoff, unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	struct vm_unmapped_area_info info;
 
@@ -115,18 +114,18 @@ radix__arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.low_limit = mm->mmap_base;
 	info.high_limit = TASK_SIZE;
 	info.align_mask = 0;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 
 static unsigned long
-radix__arch_get_unmapped_area_topdown(struct file *filp,
+radix__arch_get_unmapped_area_topdown(struct mm_struct *mm,
+				     struct file *filp,
 				     const unsigned long addr0,
 				     const unsigned long len,
 				     const unsigned long pgoff,
 				     const unsigned long flags)
 {
 	struct vm_area_struct *vma;
-	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	struct vm_unmapped_area_info info;
 
@@ -151,7 +150,7 @@ radix__arch_get_unmapped_area_topdown(struct file *filp,
 	info.low_limit = max(PAGE_SIZE, mmap_min_addr);
 	info.high_limit = mm->mmap_base;
 	info.align_mask = 0;
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 
 	/*
 	 * A failed mmap() very likely causes application failure,
@@ -164,7 +163,7 @@ radix__arch_get_unmapped_area_topdown(struct file *filp,
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
 		info.high_limit = TASK_SIZE;
-		addr = vm_unmapped_area(&info);
+		addr = vm_unmapped_area(mm, &info);
 	}
 
 	return addr;
diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index 2b27458902ee..ebcb47c62d47 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -296,7 +296,7 @@ static unsigned long slice_find_area_bottomup(struct mm_struct *mm,
 		}
 		info.high_limit = addr;
 
-		found = vm_unmapped_area(&info);
+		found = vm_unmapped_area(mm, &info);
 		if (!(found & ~PAGE_MASK))
 			return found;
 	}
@@ -339,7 +339,7 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
 		}
 		info.low_limit = addr;
 
-		found = vm_unmapped_area(&info);
+		found = vm_unmapped_area(mm, &info);
 		if (!(found & ~PAGE_MASK))
 			return found;
 	}
@@ -380,9 +380,9 @@ static unsigned long slice_find_area(struct mm_struct *mm, unsigned long len,
 #define MMU_PAGE_BASE	MMU_PAGE_4K
 #endif
 
-unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
-				      unsigned long flags, unsigned int psize,
-				      int topdown)
+unsigned long slice_get_unmapped_area(struct mm_struct *mm, unsigned long addr,
+				      unsigned long len, unsigned long flags,
+				      unsigned int psize, int topdown)
 {
 	struct slice_mask mask = {0, 0};
 	struct slice_mask good_mask;
@@ -390,7 +390,6 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 	struct slice_mask compat_mask = {0, 0};
 	int fixed = (flags & MAP_FIXED);
 	int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
-	struct mm_struct *mm = current->mm;
 	unsigned long newaddr;
 
 	/* Sanity checks */
@@ -544,24 +543,26 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 }
 EXPORT_SYMBOL_GPL(slice_get_unmapped_area);
 
-unsigned long arch_get_unmapped_area(struct file *filp,
+unsigned long arch_get_unmapped_area(struct mm_struct *mm,
+				     struct file *filp,
 				     unsigned long addr,
 				     unsigned long len,
 				     unsigned long pgoff,
 				     unsigned long flags)
 {
-	return slice_get_unmapped_area(addr, len, flags,
-				       current->mm->context.user_psize, 0);
+	return slice_get_unmapped_area(mm, addr, len, flags,
+				       mm->context.user_psize, 0);
 }
 
-unsigned long arch_get_unmapped_area_topdown(struct file *filp,
+unsigned long arch_get_unmapped_area_topdown(struct mm_struct *mm,
+					     struct file *filp,
 					     const unsigned long addr0,
 					     const unsigned long len,
 					     const unsigned long pgoff,
 					     const unsigned long flags)
 {
-	return slice_get_unmapped_area(addr0, len, flags,
-				       current->mm->context.user_psize, 1);
+	return slice_get_unmapped_area(mm, addr0, len, flags,
+				       mm->context.user_psize, 1);
 }
 
 unsigned int get_slice_psize(struct mm_struct *mm, unsigned long addr)
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index 5904abf6b1ae..2e8d5d6d7806 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -218,7 +218,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	 */
 	if (down_write_killable(&mm->mmap_sem))
 		return -EINTR;
-	vdso_base = get_unmapped_area(NULL, 0, vdso_pages << PAGE_SHIFT, 0, 0);
+	vdso_base = get_unmapped_area(mm, NULL, 0, vdso_pages << PAGE_SHIFT,
+				      0, 0);
 	if (IS_ERR_VALUE(vdso_base)) {
 		rc = vdso_base;
 		goto out_up;
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index eb9df2822da1..e9622a8bc740 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -81,10 +81,10 @@ static inline unsigned long mmap_base(unsigned long rnd)
 }
 
 unsigned long
-arch_get_unmapped_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	struct vm_unmapped_area_info info;
 
@@ -111,16 +111,15 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	else
 		info.align_mask = 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 
 unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-			  const unsigned long len, const unsigned long pgoff,
-			  const unsigned long flags)
+arch_get_unmapped_area_topdown(struct mm_struct *mm, struct file *filp,
+			  const unsigned long addr0, const unsigned long len,
+			  const unsigned long pgoff, const unsigned long flags)
 {
 	struct vm_area_struct *vma;
-	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	struct vm_unmapped_area_info info;
 
@@ -149,7 +148,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	else
 		info.align_mask = 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 
 	/*
 	 * A failed mmap() very likely causes application failure,
@@ -162,7 +161,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
 		info.high_limit = TASK_SIZE;
-		addr = vm_unmapped_area(&info);
+		addr = vm_unmapped_area(mm, &info);
 	}
 
 	return addr;
@@ -180,14 +179,14 @@ int s390_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
 }
 
 static unsigned long
-s390_get_unmapped_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+s390_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	unsigned long area;
 	int rc;
 
-	area = arch_get_unmapped_area(filp, addr, len, pgoff, flags);
+	area = arch_get_unmapped_area(mm, filp, addr, len, pgoff, flags);
 	if (!(area & ~PAGE_MASK))
 		return area;
 	if (area == -ENOMEM && !is_compat_task() && TASK_SIZE < TASK_MAX_SIZE) {
@@ -195,21 +194,22 @@ s390_get_unmapped_area(struct file *filp, unsigned long addr,
 		rc = crst_table_upgrade(mm);
 		if (rc)
 			return (unsigned long) rc;
-		area = arch_get_unmapped_area(filp, addr, len, pgoff, flags);
+		area = arch_get_unmapped_area(mm, filp, addr, len, pgoff,
+					      flags);
 	}
 	return area;
 }
 
 static unsigned long
-s390_get_unmapped_area_topdown(struct file *filp, const unsigned long addr,
-			  const unsigned long len, const unsigned long pgoff,
-			  const unsigned long flags)
+s390_get_unmapped_area_topdown(struct mm_struct *mm, struct file *filp,
+			  const unsigned long addr, const unsigned long len,
+			  const unsigned long pgoff, const unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	unsigned long area;
 	int rc;
 
-	area = arch_get_unmapped_area_topdown(filp, addr, len, pgoff, flags);
+	area = arch_get_unmapped_area_topdown(mm, filp, addr, len, pgoff,
+					      flags);
 	if (!(area & ~PAGE_MASK))
 		return area;
 	if (area == -ENOMEM && !is_compat_task() && TASK_SIZE < TASK_MAX_SIZE) {
@@ -217,7 +217,7 @@ s390_get_unmapped_area_topdown(struct file *filp, const unsigned long addr,
 		rc = crst_table_upgrade(mm);
 		if (rc)
 			return (unsigned long) rc;
-		area = arch_get_unmapped_area_topdown(filp, addr, len,
+		area = arch_get_unmapped_area_topdown(mm, filp, addr, len,
 						      pgoff, flags);
 	}
 	return area;
diff --git a/arch/sh/kernel/vsyscall/vsyscall.c b/arch/sh/kernel/vsyscall/vsyscall.c
index cc0cc5b4ff18..81f68365b511 100644
--- a/arch/sh/kernel/vsyscall/vsyscall.c
+++ b/arch/sh/kernel/vsyscall/vsyscall.c
@@ -67,7 +67,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	if (down_write_killable(&mm->mmap_sem))
 		return -EINTR;
 
-	addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0);
+	addr = get_unmapped_area(mm, NULL, 0, PAGE_SIZE, 0, 0);
 	if (IS_ERR_VALUE(addr)) {
 		ret = addr;
 		goto up_fail;
diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
index 6777177807c2..ab873264c260 100644
--- a/arch/sh/mm/mmap.c
+++ b/arch/sh/mm/mmap.c
@@ -30,10 +30,10 @@ static inline unsigned long COLOUR_ALIGN(unsigned long addr,
 	return base + off;
 }
 
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
-	unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+	unsigned long addr, unsigned long len, unsigned long pgoff,
+	unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	int do_colour_align;
 	struct vm_unmapped_area_info info;
@@ -73,16 +73,15 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.high_limit = TASK_SIZE;
 	info.align_mask = do_colour_align ? (PAGE_MASK & shm_align_mask) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 
 unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-			  const unsigned long len, const unsigned long pgoff,
-			  const unsigned long flags)
+arch_get_unmapped_area_topdown(struct mm_struct *mm, struct file *filp,
+			  const unsigned long addr0, const unsigned long len,
+			  const unsigned long pgoff, const unsigned long flags)
 {
 	struct vm_area_struct *vma;
-	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	int do_colour_align;
 	struct vm_unmapped_area_info info;
@@ -123,7 +122,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.high_limit = mm->mmap_base;
 	info.align_mask = do_colour_align ? (PAGE_MASK & shm_align_mask) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 
 	/*
 	 * A failed mmap() very likely causes application failure,
@@ -136,7 +135,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
 		info.high_limit = TASK_SIZE;
-		addr = vm_unmapped_area(&info);
+		addr = vm_unmapped_area(mm, &info);
 	}
 
 	return addr;
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 314b66851348..e5e47115ba43 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -1013,8 +1013,8 @@ static inline int io_remap_pfn_range(struct vm_area_struct *vma,
 /* We provide a special get_unmapped_area for framebuffer mmaps to try and use
  * the largest alignment possible such that larget PTEs can be used.
  */
-unsigned long get_fb_unmapped_area(struct file *filp, unsigned long,
-				   unsigned long, unsigned long,
+unsigned long get_fb_unmapped_area(struct mm_struct *mm, struct file *filp,
+				   unsigned long, unsigned long, unsigned long,
 				   unsigned long);
 #define HAVE_ARCH_FB_UNMAPPED_AREA
 
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index fb7b185ee941..52319c194f96 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -36,7 +36,9 @@ asmlinkage unsigned long sys_getpagesize(void)
 	return PAGE_SIZE; /* Possibly older binaries want 8192 on sun4's? */
 }
 
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+				     unsigned long addr, unsigned long len,
+				     unsigned long pgoff, unsigned long flags)
 {
 	struct vm_unmapped_area_info info;
 
@@ -63,7 +65,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	info.align_mask = (flags & MAP_SHARED) ?
 		(PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 
 /*
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 884c70331345..3e77c04700ef 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -83,9 +83,10 @@ static inline unsigned long COLOR_ALIGN(unsigned long addr,
 	return base + off;
 }
 
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+				     unsigned long addr, unsigned long len,
+				     unsigned long pgoff, unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct * vma;
 	unsigned long task_size = TASK_SIZE;
 	int do_color_align;
@@ -128,25 +129,24 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	info.high_limit = min(task_size, VA_EXCLUDE_START);
 	info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 
 	if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
 		VM_BUG_ON(addr != -ENOMEM);
 		info.low_limit = VA_EXCLUDE_END;
 		info.high_limit = task_size;
-		addr = vm_unmapped_area(&info);
+		addr = vm_unmapped_area(mm, &info);
 	}
 
 	return addr;
 }
 
 unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-			  const unsigned long len, const unsigned long pgoff,
-			  const unsigned long flags)
+arch_get_unmapped_area_topdown(struct mm_struct *mm, struct file *filp,
+			  const unsigned long addr0, const unsigned long len,
+			  const unsigned long pgoff, const unsigned long flags)
 {
 	struct vm_area_struct *vma;
-	struct mm_struct *mm = current->mm;
 	unsigned long task_size = STACK_TOP32;
 	unsigned long addr = addr0;
 	int do_color_align;
@@ -191,7 +191,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.high_limit = mm->mmap_base;
 	info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 
 	/*
 	 * A failed mmap() very likely causes application failure,
@@ -204,20 +204,23 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
 		info.high_limit = STACK_TOP32;
-		addr = vm_unmapped_area(&info);
+		addr = vm_unmapped_area(mm, &info);
 	}
 
 	return addr;
 }
 
 /* Try to align mapping such that we align it as much as possible. */
-unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long get_fb_unmapped_area(struct mm_sturc *mm, struct file *filp,
+				   unsigned long orig_addr, unsigned long len,
+				   unsigned long pgoff, unsigned long flags)
 {
 	unsigned long align_goal, addr = -ENOMEM;
-	unsigned long (*get_area)(struct file *, unsigned long,
-				  unsigned long, unsigned long, unsigned long);
+	unsigned long (*get_area)(struct mm_struct *, struct file *,
+				  unsigned long, unsigned long, unsigned long,
+				  unsigned long);
 
-	get_area = current->mm->get_unmapped_area;
+	get_area = mm->get_unmapped_area;
 
 	if (flags & MAP_FIXED) {
 		/* Ok, don't mess with it. */
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
index 988acc8b1b80..92841d9ddd59 100644
--- a/arch/sparc/mm/hugetlbpage.c
+++ b/arch/sparc/mm/hugetlbpage.c
@@ -22,7 +22,8 @@
  * definition we don't have to worry about any page coloring stuff
  */
 
-static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
+static unsigned long hugetlb_get_unmapped_area_bottomup(struct mm_struct *mm,
+							struct file *filp,
 							unsigned long addr,
 							unsigned long len,
 							unsigned long pgoff,
@@ -40,25 +41,26 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
 	info.high_limit = min(task_size, VA_EXCLUDE_START);
 	info.align_mask = PAGE_MASK & ~HPAGE_MASK;
 	info.align_offset = 0;
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 
 	if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
 		VM_BUG_ON(addr != -ENOMEM);
 		info.low_limit = VA_EXCLUDE_END;
 		info.high_limit = task_size;
-		addr = vm_unmapped_area(&info);
+		addr = vm_unmapped_area(mm, &info);
 	}
 
 	return addr;
 }
 
 static unsigned long
-hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+hugetlb_get_unmapped_area_topdown(struct mm_struct *mm,
+				  struct file *filp,
+				  const unsigned long addr0,
 				  const unsigned long len,
 				  const unsigned long pgoff,
 				  const unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	struct vm_unmapped_area_info info;
 
@@ -71,7 +73,7 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.high_limit = mm->mmap_base;
 	info.align_mask = PAGE_MASK & ~HPAGE_MASK;
 	info.align_offset = 0;
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 
 	/*
 	 * A failed mmap() very likely causes application failure,
@@ -84,17 +86,17 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
 		info.high_limit = STACK_TOP32;
-		addr = vm_unmapped_area(&info);
+		addr = vm_unmapped_area(mm, &info);
 	}
 
 	return addr;
 }
 
 unsigned long
-hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+hugetlb_get_unmapped_area(struct mm_struct *mm, struct file *file,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	unsigned long task_size = TASK_SIZE;
 
@@ -120,10 +122,10 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 			return addr;
 	}
 	if (mm->get_unmapped_area == arch_get_unmapped_area)
-		return hugetlb_get_unmapped_area_bottomup(file, addr, len,
+		return hugetlb_get_unmapped_area_bottomup(mm, file, addr, len,
 				pgoff, flags);
 	else
-		return hugetlb_get_unmapped_area_topdown(file, addr, len,
+		return hugetlb_get_unmapped_area_topdown(mm, file, addr, len,
 				pgoff, flags);
 }
 
diff --git a/arch/tile/kernel/vdso.c b/arch/tile/kernel/vdso.c
index 5bc51d7dfdcb..74aa55aa11ec 100644
--- a/arch/tile/kernel/vdso.c
+++ b/arch/tile/kernel/vdso.c
@@ -150,7 +150,7 @@ int setup_vdso_pages(void)
 	if (pages == 0)
 		return 0;
 
-	vdso_base = get_unmapped_area(NULL, vdso_base,
+	vdso_base = get_unmapped_area(mm, NULL, vdso_base,
 				      (pages << PAGE_SHIFT) +
 				      ((VDSO_ALIGNMENT - 1) & PAGE_MASK),
 				      0, 0);
diff --git a/arch/tile/mm/hugetlbpage.c b/arch/tile/mm/hugetlbpage.c
index 77ceaa343fce..24e8c99b5b3f 100644
--- a/arch/tile/mm/hugetlbpage.c
+++ b/arch/tile/mm/hugetlbpage.c
@@ -161,7 +161,8 @@ int pud_huge(pud_t pud)
 }
 
 #ifdef HAVE_ARCH_HUGETLB_UNMAPPED_AREA
-static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
+static unsigned long hugetlb_get_unmapped_area_bottomup(struct mm_struct *mm,
+		struct file *file,
 		unsigned long addr, unsigned long len,
 		unsigned long pgoff, unsigned long flags)
 {
@@ -174,10 +175,11 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 
-static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
+static unsigned long hugetlb_get_unmapped_area_topdown(struct mm_struct *mm,
+		struct file *file,
 		unsigned long addr0, unsigned long len,
 		unsigned long pgoff, unsigned long flags)
 {
@@ -188,10 +190,10 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
 	info.length = len;
 	info.low_limit = PAGE_SIZE;
-	info.high_limit = current->mm->mmap_base;
+	info.high_limit = mm->mmap_base;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 
 	/*
 	 * A failed mmap() very likely causes application failure,
@@ -204,17 +206,17 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
 		info.high_limit = TASK_SIZE;
-		addr = vm_unmapped_area(&info);
+		addr = vm_unmapped_area(mm, &info);
 	}
 
 	return addr;
 }
 
-unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long hugetlb_get_unmapped_area(struct mm_struct *mm, struct file *file,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
 	struct hstate *h = hstate_file(file);
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 
 	if (len & ~huge_page_mask(h))
@@ -235,11 +237,11 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 		    (!vma || addr + len <= vma->vm_start))
 			return addr;
 	}
-	if (current->mm->get_unmapped_area == arch_get_unmapped_area)
-		return hugetlb_get_unmapped_area_bottomup(file, addr, len,
+	if (mm->get_unmapped_area == arch_get_unmapped_area)
+		return hugetlb_get_unmapped_area_bottomup(mm, file, addr, len,
 				pgoff, flags);
 	else
-		return hugetlb_get_unmapped_area_topdown(file, addr, len,
+		return hugetlb_get_unmapped_area_topdown(mm, file, addr, len,
 				pgoff, flags);
 }
 #endif /* HAVE_ARCH_HUGETLB_UNMAPPED_AREA */
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 10820f6cefbf..8f728f3a1698 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -153,7 +153,7 @@ static int map_vdso(const struct vdso_image *image, unsigned long addr)
 	if (down_write_killable(&mm->mmap_sem))
 		return -EINTR;
 
-	addr = get_unmapped_area(NULL, addr,
+	addr = get_unmapped_area(mm, NULL, addr,
 				 image->size - image->sym_vvar_start, 0, 0);
 	if (IS_ERR_VALUE(addr)) {
 		ret = addr;
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index a55ed63b9f91..bf9198998895 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -120,10 +120,10 @@ static void find_start_end(unsigned long flags, unsigned long *begin,
 }
 
 unsigned long
-arch_get_unmapped_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	struct vm_unmapped_area_info info;
 	unsigned long begin, end;
@@ -154,16 +154,15 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 		info.align_mask = get_align_mask();
 		info.align_offset += get_align_bits();
 	}
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 
 unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-			  const unsigned long len, const unsigned long pgoff,
-			  const unsigned long flags)
+arch_get_unmapped_area_topdown(struct mm_struct *mm, struct file *filp,
+			  const unsigned long addr0, const unsigned long len,
+			  const unsigned long pgoff, const unsigned long flags)
 {
 	struct vm_area_struct *vma;
-	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	struct vm_unmapped_area_info info;
 
@@ -197,7 +196,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		info.align_mask = get_align_mask();
 		info.align_offset += get_align_bits();
 	}
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 	if (!(addr & ~PAGE_MASK))
 		return addr;
 	VM_BUG_ON(addr != -ENOMEM);
@@ -209,5 +208,5 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	 * can happen with large stack limits and large mmap()
 	 * allocations.
 	 */
-	return arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
+	return arch_get_unmapped_area(mm, filp, addr0, len, pgoff, flags);
 }
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index 2ae8584b44c7..93f0dccd0fcd 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -72,7 +72,8 @@ int pud_huge(pud_t pud)
 #endif
 
 #ifdef CONFIG_HUGETLB_PAGE
-static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
+static unsigned long hugetlb_get_unmapped_area_bottomup(struct mm_struct *mm,
+		struct file *file,
 		unsigned long addr, unsigned long len,
 		unsigned long pgoff, unsigned long flags)
 {
@@ -81,14 +82,15 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
 
 	info.flags = 0;
 	info.length = len;
-	info.low_limit = current->mm->mmap_legacy_base;
+	info.low_limit = mm->mmap_legacy_base;
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 
-static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
+static unsigned long hugetlb_get_unmapped_area_topdown(struct mm_struct *mm,
+		struct file *file,
 		unsigned long addr0, unsigned long len,
 		unsigned long pgoff, unsigned long flags)
 {
@@ -99,10 +101,10 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
 	info.length = len;
 	info.low_limit = PAGE_SIZE;
-	info.high_limit = current->mm->mmap_base;
+	info.high_limit = mm->mmap_base;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 
 	/*
 	 * A failed mmap() very likely causes application failure,
@@ -115,18 +117,18 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
 		info.high_limit = TASK_SIZE;
-		addr = vm_unmapped_area(&info);
+		addr = vm_unmapped_area(mm, &info);
 	}
 
 	return addr;
 }
 
 unsigned long
-hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+hugetlb_get_unmapped_area(struct mm_struct *mm, struct file *file,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
 	struct hstate *h = hstate_file(file);
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 
 	if (len & ~huge_page_mask(h))
@@ -148,10 +150,10 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 			return addr;
 	}
 	if (mm->get_unmapped_area == arch_get_unmapped_area)
-		return hugetlb_get_unmapped_area_bottomup(file, addr, len,
+		return hugetlb_get_unmapped_area_bottomup(mm, file, addr, len,
 				pgoff, flags);
 	else
-		return hugetlb_get_unmapped_area_topdown(file, addr, len,
+		return hugetlb_get_unmapped_area_topdown(mm, file, addr, len,
 				pgoff, flags);
 }
 #endif /* CONFIG_HUGETLB_PAGE */
diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c
index d3fd100dffc9..4a17828917df 100644
--- a/arch/xtensa/kernel/syscall.c
+++ b/arch/xtensa/kernel/syscall.c
@@ -58,8 +58,9 @@ asmlinkage long xtensa_fadvise64_64(int fd, int advice,
 }
 
 #ifdef CONFIG_MMU
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
 	struct vm_area_struct *vmm;
 
@@ -83,7 +84,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	else
 		addr = PAGE_ALIGN(addr);
 
-	for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) {
+	for (vmm = find_vma(mm, addr); ; vmm = vmm->vm_next) {
 		/* At this point:  (!vmm || addr < vmm->vm_end). */
 		if (TASK_SIZE - len < addr)
 			return -ENOMEM;
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 6d9cc2d39d22..4b6ac3f373df 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -273,7 +273,8 @@ static pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
 #endif
 
 #ifndef CONFIG_MMU
-static unsigned long get_unmapped_area_mem(struct file *file,
+static unsigned long get_unmapped_area_mem(struct mm_struct *mm,
+					   struct file *file,
 					   unsigned long addr,
 					   unsigned long len,
 					   unsigned long pgoff,
@@ -662,9 +663,10 @@ static int mmap_zero(struct file *file, struct vm_area_struct *vma)
 	return 0;
 }
 
-static unsigned long get_unmapped_area_zero(struct file *file,
-				unsigned long addr, unsigned long len,
-				unsigned long pgoff, unsigned long flags)
+static unsigned long get_unmapped_area_zero(struct mm_struct *mm,
+				struct file *file, unsigned long addr,
+				unsigned long len, unsigned long pgoff,
+				unsigned long flags)
 {
 #ifdef CONFIG_MMU
 	if (flags & MAP_SHARED) {
@@ -674,11 +676,12 @@ static unsigned long get_unmapped_area_zero(struct file *file,
 		 * and pass NULL for file as in mmap.c's get_unmapped_area(),
 		 * so as not to confuse shmem with our handle on "/dev/zero".
 		 */
-		return shmem_get_unmapped_area(NULL, addr, len, pgoff, flags);
+		return shmem_get_unmapped_area(mm, NULL, addr, len, pgoff,
+					       flags);
 	}
 
 	/* Otherwise flags & MAP_PRIVATE: with no shmem object beneath it */
-	return current->mm->get_unmapped_area(file, addr, len, pgoff, flags);
+	return mm->get_unmapped_area(mm, file, addr, len, pgoff, flags);
 #else
 	return -ENOSYS;
 #endif
diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c
index ed758b74ddf0..ab60b8c05b7f 100644
--- a/drivers/dax/dax.c
+++ b/drivers/dax/dax.c
@@ -552,9 +552,9 @@ static int dax_mmap(struct file *filp, struct vm_area_struct *vma)
 }
 
 /* return an unmapped area aligned to the dax region specified alignment */
-static unsigned long dax_get_unmapped_area(struct file *filp,
-		unsigned long addr, unsigned long len, unsigned long pgoff,
-		unsigned long flags)
+static unsigned long dax_get_unmapped_area(struct mm_struct *mm,
+		struct file *filp, unsigned long addr, unsigned long len,
+		unsigned long pgoff, unsigned long flags)
 {
 	unsigned long off, off_end, off_align, len_align, addr_align, align;
 	struct dax_dev *dax_dev = filp ? filp->private_data : NULL;
@@ -576,14 +576,14 @@ static unsigned long dax_get_unmapped_area(struct file *filp,
 	if ((off + len_align) < off)
 		goto out;
 
-	addr_align = current->mm->get_unmapped_area(filp, addr, len_align,
+	addr_align = mm->get_unmapped_area(mm, filp, addr, len_align,
 			pgoff, flags);
 	if (!IS_ERR_VALUE(addr_align)) {
 		addr_align += (off - addr_align) & (align - 1);
 		return addr_align;
 	}
  out:
-	return current->mm->get_unmapped_area(filp, addr, len, pgoff, flags);
+	return mm->get_unmapped_area(mm, filp, addr, len, pgoff, flags);
 }
 
 static int dax_open(struct inode *inode, struct file *filp)
diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
index 3e7e283a44a8..2224c5ebb459 100644
--- a/drivers/media/usb/uvc/uvc_v4l2.c
+++ b/drivers/media/usb/uvc/uvc_v4l2.c
@@ -1434,9 +1434,9 @@ static unsigned int uvc_v4l2_poll(struct file *file, poll_table *wait)
 }
 
 #ifndef CONFIG_MMU
-static unsigned long uvc_v4l2_get_unmapped_area(struct file *file,
-		unsigned long addr, unsigned long len, unsigned long pgoff,
-		unsigned long flags)
+static unsigned long uvc_v4l2_get_unmapped_area(struct mm_struct *mm,
+		struct file *file, unsigned long addr, unsigned long len,
+		unsigned long pgoff, unsigned long flags)
 {
 	struct uvc_fh *handle = file->private_data;
 	struct uvc_streaming *stream = handle->stream;
diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index fa2124cb31bd..f227ebc369f7 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -369,9 +369,9 @@ static long v4l2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 #ifdef CONFIG_MMU
 #define v4l2_get_unmapped_area NULL
 #else
-static unsigned long v4l2_get_unmapped_area(struct file *filp,
-		unsigned long addr, unsigned long len, unsigned long pgoff,
-		unsigned long flags)
+static unsigned long v4l2_get_unmapped_area(struct mm_struct *mm,
+		struct file *filp, unsigned long addr, unsigned long len,
+		unsigned long pgoff, unsigned long flags)
 {
 	struct video_device *vdev = video_devdata(filp);
 	int ret;
@@ -380,7 +380,7 @@ static unsigned long v4l2_get_unmapped_area(struct file *filp,
 		return -ENOSYS;
 	if (!video_is_registered(vdev))
 		return -ENODEV;
-	ret = vdev->fops->get_unmapped_area(filp, addr, len, pgoff, flags);
+	ret = vdev->fops->get_unmapped_area(mm, filp, addr, len, pgoff, flags);
 	if (vdev->dev_debug & V4L2_DEV_DEBUG_FOP)
 		printk(KERN_DEBUG "%s: get_unmapped_area (%d)\n",
 			video_device_node_name(vdev), ret);
diff --git a/drivers/media/v4l2-core/videobuf2-v4l2.c b/drivers/media/v4l2-core/videobuf2-v4l2.c
index 3529849d2218..953417fb4914 100644
--- a/drivers/media/v4l2-core/videobuf2-v4l2.c
+++ b/drivers/media/v4l2-core/videobuf2-v4l2.c
@@ -932,8 +932,9 @@ unsigned int vb2_fop_poll(struct file *file, poll_table *wait)
 EXPORT_SYMBOL_GPL(vb2_fop_poll);
 
 #ifndef CONFIG_MMU
-unsigned long vb2_fop_get_unmapped_area(struct file *file, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long vb2_fop_get_unmapped_area(struct mm_struct *mm, struct file *file,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
 	struct video_device *vdev = video_devdata(file);
 
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index ce5ccc573a9c..8774808c69e5 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -1156,7 +1156,8 @@ static long mtdchar_compat_ioctl(struct file *file, unsigned int cmd,
  *   mappings)
  */
 #ifndef CONFIG_MMU
-static unsigned long mtdchar_get_unmapped_area(struct file *file,
+static unsigned long mtdchar_get_unmapped_area(struct mm_struct *mm,
+					   struct file *file,
 					   unsigned long addr,
 					   unsigned long len,
 					   unsigned long pgoff,
diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c
index 3e22b45687d3..96ad4de14dc7 100644
--- a/drivers/usb/gadget/function/uvc_v4l2.c
+++ b/drivers/usb/gadget/function/uvc_v4l2.c
@@ -343,7 +343,8 @@ uvc_v4l2_poll(struct file *file, poll_table *wait)
 }
 
 #ifndef CONFIG_MMU
-static unsigned long uvcg_v4l2_get_unmapped_area(struct file *file,
+static unsigned long uvcg_v4l2_get_unmapped_area(struct mm_struct *mm,
+		struct file *file,
 		unsigned long addr, unsigned long len, unsigned long pgoff,
 		unsigned long flags)
 {
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 54de77e78775..69037eb6a728 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -168,10 +168,10 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
 
 #ifndef HAVE_ARCH_HUGETLB_UNMAPPED_AREA
 static unsigned long
-hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+hugetlb_get_unmapped_area(struct mm_struct *mm, struct file *file,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	struct hstate *h = hstate_file(file);
 	struct vm_unmapped_area_info info;
@@ -201,7 +201,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
 	info.align_offset = 0;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 #endif
 
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 842a5ff5b85c..cb2d5702bdce 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -291,9 +291,9 @@ static int proc_reg_mmap(struct file *file, struct vm_area_struct *vma)
 }
 
 static unsigned long
-proc_reg_get_unmapped_area(struct file *file, unsigned long orig_addr,
-			   unsigned long len, unsigned long pgoff,
-			   unsigned long flags)
+proc_reg_get_unmapped_area(struct mm_struct *mm, struct file *file,
+			   unsigned long orig_addr, unsigned long len,
+			   unsigned long pgoff, unsigned long flags)
 {
 	struct proc_dir_entry *pde = PDE(file_inode(file));
 	unsigned long rv = -EIO;
@@ -304,11 +304,11 @@ proc_reg_get_unmapped_area(struct file *file, unsigned long orig_addr,
 		get_area = pde->proc_fops->get_unmapped_area;
 #ifdef CONFIG_MMU
 		if (!get_area)
-			get_area = current->mm->get_unmapped_area;
+			get_area = mm->get_unmapped_area;
 #endif
 
 		if (get_area)
-			rv = get_area(file, orig_addr, len, pgoff, flags);
+			rv = get_area(mm, file, orig_addr, len, pgoff, flags);
 		else
 			rv = orig_addr;
 		unuse_pde(pde);
diff --git a/fs/ramfs/file-mmu.c b/fs/ramfs/file-mmu.c
index 12af0490322f..a4584130234a 100644
--- a/fs/ramfs/file-mmu.c
+++ b/fs/ramfs/file-mmu.c
@@ -31,11 +31,12 @@
 
 #include "internal.h"
 
-static unsigned long ramfs_mmu_get_unmapped_area(struct file *file,
+static unsigned long ramfs_mmu_get_unmapped_area(struct mm_struct *mm,
+		struct file *file,
 		unsigned long addr, unsigned long len, unsigned long pgoff,
 		unsigned long flags)
 {
-	return current->mm->get_unmapped_area(file, addr, len, pgoff, flags);
+	return mm->get_unmapped_area(mm, file, addr, len, pgoff, flags);
 }
 
 const struct file_operations ramfs_file_operations = {
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index 2ef7ce75c062..564ba84d61b6 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -27,7 +27,8 @@
 #include "internal.h"
 
 static int ramfs_nommu_setattr(struct dentry *, struct iattr *);
-static unsigned long ramfs_nommu_get_unmapped_area(struct file *file,
+static unsigned long ramfs_nommu_get_unmapped_area(struct mm_struct *mm,
+						   struct file *file,
 						   unsigned long addr,
 						   unsigned long len,
 						   unsigned long pgoff,
@@ -202,9 +203,10 @@ static int ramfs_nommu_setattr(struct dentry *dentry, struct iattr *ia)
  *   - the pages to be mapped must exist
  *   - the pages be physically contiguous in sequence
  */
-static unsigned long ramfs_nommu_get_unmapped_area(struct file *file,
-					    unsigned long addr, unsigned long len,
-					    unsigned long pgoff, unsigned long flags)
+static unsigned long ramfs_nommu_get_unmapped_area(struct mm_struct *mm,
+					struct file *file, unsigned long addr,
+					unsigned long len, unsigned long pgoff,
+					unsigned long flags)
 {
 	unsigned long maxpages, lpages, nr, loop, ret;
 	struct inode *inode = file_inode(file);
diff --git a/fs/romfs/mmap-nommu.c b/fs/romfs/mmap-nommu.c
index 1118a0dc6b45..0bfebcafb077 100644
--- a/fs/romfs/mmap-nommu.c
+++ b/fs/romfs/mmap-nommu.c
@@ -19,7 +19,8 @@
  *   mappings)
  * - attempts to map through to the underlying MTD device
  */
-static unsigned long romfs_get_unmapped_area(struct file *file,
+static unsigned long romfs_get_unmapped_area(struct mm_struct *mm,
+					     struct file *file,
 					     unsigned long addr,
 					     unsigned long len,
 					     unsigned long pgoff,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2ba074328894..45f8cf874ea1 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1662,7 +1662,7 @@ struct file_operations {
 	int (*fasync) (int, struct file *, int);
 	int (*lock) (struct file *, int, struct file_lock *);
 	ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int);
-	unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
+	unsigned long (*get_unmapped_area)(struct mm_struct *, struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
 	int (*check_flags)(int);
 	int (*flock) (struct file *, int, struct file_lock *);
 	ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 97e478d6b690..94a0e680b7d7 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -87,9 +87,9 @@ extern bool is_vma_temporary_stack(struct vm_area_struct *vma);
 
 extern unsigned long transparent_hugepage_flags;
 
-extern unsigned long thp_get_unmapped_area(struct file *filp,
-		unsigned long addr, unsigned long len, unsigned long pgoff,
-		unsigned long flags);
+extern unsigned long thp_get_unmapped_area(struct mm_struct *mm,
+		struct file *filp, unsigned long addr, unsigned long len,
+		unsigned long pgoff, unsigned long flags);
 
 extern void prep_transhuge_page(struct page *page);
 extern void free_transhuge_page(struct page *page);
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 48c76d612d40..72260cc252f2 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -287,8 +287,9 @@ hugetlb_file_setup(const char *name, size_t size, vm_flags_t acctflag,
 #endif /* !CONFIG_HUGETLBFS */
 
 #ifdef HAVE_ARCH_HUGETLB_UNMAPPED_AREA
-unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
-					unsigned long len, unsigned long pgoff,
+unsigned long hugetlb_get_unmapped_area(struct mm_struct *mm, struct file *file,
+					unsigned long addr, unsigned long len,
+					unsigned long pgoff,
 					unsigned long flags);
 #endif /* HAVE_ARCH_HUGETLB_UNMAPPED_AREA */
 
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 71a90604d21f..1520da8f9c67 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2014,7 +2014,9 @@ extern int install_special_mapping(struct mm_struct *mm,
 				   unsigned long addr, unsigned long len,
 				   unsigned long flags, struct page **pages);
 
-extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
+extern unsigned long get_unmapped_area(struct mm_struct *, struct file *,
+				       unsigned long, unsigned long,
+				       unsigned long, unsigned long);
 
 extern unsigned long mmap_region(struct mm_struct *mm, struct file *file,
 				 unsigned long addr, unsigned long len,
@@ -2066,8 +2068,10 @@ struct vm_unmapped_area_info {
 	unsigned long align_offset;
 };
 
-extern unsigned long unmapped_area(struct vm_unmapped_area_info *info);
-extern unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info);
+extern unsigned long unmapped_area(struct mm_struct *mm,
+				   struct vm_unmapped_area_info *info);
+extern unsigned long unmapped_area_topdown(struct mm_struct *mm,
+					   struct vm_unmapped_area_info *info);
 
 /*
  * Search for an unmapped address range.
@@ -2079,12 +2083,12 @@ extern unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info);
  * - satisfies (begin_addr & align_mask) == (align_offset & align_mask)
  */
 static inline unsigned long
-vm_unmapped_area(struct vm_unmapped_area_info *info)
+vm_unmapped_area(struct mm_struct *mm, struct vm_unmapped_area_info *info)
 {
 	if (info->flags & VM_UNMAPPED_AREA_TOPDOWN)
-		return unmapped_area_topdown(info);
+		return unmapped_area_topdown(mm, info);
 	else
-		return unmapped_area(info);
+		return unmapped_area(mm, info);
 }
 
 /* truncate.c */
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 808751d7b737..6aa03e88dcff 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -398,9 +398,10 @@ struct mm_struct {
 	struct rb_root mm_rb;
 	u32 vmacache_seqnum;                   /* per-thread vmacache */
 #ifdef CONFIG_MMU
-	unsigned long (*get_unmapped_area) (struct file *filp,
-				unsigned long addr, unsigned long len,
-				unsigned long pgoff, unsigned long flags);
+	unsigned long (*get_unmapped_area) (struct mm_struct *mm,
+				struct file *filp, unsigned long addr,
+				unsigned long len, unsigned long pgoff,
+				unsigned long flags);
 #endif
 	unsigned long mmap_base;		/* base of mmap area */
 	unsigned long mmap_legacy_base;         /* base of mmap area in bottom-up allocations */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index ad3ec9ec61f7..42b9b93a50ac 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -476,12 +476,12 @@ struct user_namespace;
 #ifdef CONFIG_MMU
 extern void arch_pick_mmap_layout(struct mm_struct *mm);
 extern unsigned long
-arch_get_unmapped_area(struct file *, unsigned long, unsigned long,
-		       unsigned long, unsigned long);
+arch_get_unmapped_area(struct mm_struct *mm, struct file *, unsigned long,
+		       unsigned long, unsigned long, unsigned long);
 extern unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
-			  unsigned long len, unsigned long pgoff,
-			  unsigned long flags);
+arch_get_unmapped_area_topdown(struct mm_struct *mm, struct file *filp,
+			       unsigned long addr, unsigned long len,
+			       unsigned long pgoff, unsigned long flags);
 #else
 static inline void arch_pick_mmap_layout(struct mm_struct *mm) {}
 #endif
diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h
index ff078e7043b6..37d27369bb42 100644
--- a/include/linux/shmem_fs.h
+++ b/include/linux/shmem_fs.h
@@ -54,8 +54,9 @@ extern struct file *shmem_file_setup(const char *name,
 extern struct file *shmem_kernel_file_setup(const char *name, loff_t size,
 					    unsigned long flags);
 extern int shmem_zero_setup(struct vm_area_struct *);
-extern unsigned long shmem_get_unmapped_area(struct file *, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags);
+extern unsigned long shmem_get_unmapped_area(struct mm_struct *, struct file *,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags);
 extern int shmem_lock(struct file *file, int lock, struct user_struct *user);
 extern bool shmem_mapping(struct address_space *mapping);
 extern void shmem_unlock_mapping(struct address_space *mapping);
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index e657614521e3..d7287a53f590 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -156,7 +156,8 @@ struct v4l2_file_operations {
 #ifdef CONFIG_COMPAT
 	long (*compat_ioctl32) (struct file *, unsigned int, unsigned long);
 #endif
-	unsigned long (*get_unmapped_area) (struct file *, unsigned long,
+	unsigned long (*get_unmapped_area) (struct mm_struct *mm,
+				struct file *filep, unsigned long,
 				unsigned long, unsigned long, unsigned long);
 	int (*mmap) (struct file *, struct vm_area_struct *);
 	int (*open) (struct file *);
diff --git a/include/media/videobuf2-v4l2.h b/include/media/videobuf2-v4l2.h
index 036127c54bbf..43f4d0a3b333 100644
--- a/include/media/videobuf2-v4l2.h
+++ b/include/media/videobuf2-v4l2.h
@@ -264,8 +264,9 @@ ssize_t vb2_fop_read(struct file *file, char __user *buf,
 		size_t count, loff_t *ppos);
 unsigned int vb2_fop_poll(struct file *file, poll_table *wait);
 #ifndef CONFIG_MMU
-unsigned long vb2_fop_get_unmapped_area(struct file *file, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags);
+unsigned long vb2_fop_get_unmapped_area(struct mm_struct *mm, struct file *file,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags);
 #endif
 
 /**
diff --git a/ipc/shm.c b/ipc/shm.c
index 64c21fb32ca9..2fd73cda4ec8 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -465,14 +465,14 @@ static long shm_fallocate(struct file *file, int mode, loff_t offset,
 	return sfd->file->f_op->fallocate(file, mode, offset, len);
 }
 
-static unsigned long shm_get_unmapped_area(struct file *file,
-	unsigned long addr, unsigned long len, unsigned long pgoff,
-	unsigned long flags)
+static unsigned long shm_get_unmapped_area(struct mm_struct *mm,
+	struct file *file, unsigned long addr, unsigned long len,
+	unsigned long pgoff, unsigned long flags)
 {
 	struct shm_file_data *sfd = shm_file_data(file);
 
-	return sfd->file->f_op->get_unmapped_area(sfd->file, addr, len,
-						pgoff, flags);
+	return sfd->file->f_op->get_unmapped_area(mm, sfd->file, addr, len,
+						  pgoff, flags);
 }
 
 static const struct file_operations shm_file_operations = {
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index d416f3baf392..ed95aae0f386 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1142,7 +1142,7 @@ static int xol_add_vma(struct mm_struct *mm, struct xol_area *area)
 
 	if (!area->vaddr) {
 		/* Try to map as high as possible, this is only a hint. */
-		area->vaddr = get_unmapped_area(NULL, TASK_SIZE - PAGE_SIZE,
+		area->vaddr = get_unmapped_area(mm, NULL, TASK_SIZE - PAGE_SIZE,
 						PAGE_SIZE, 0, 0);
 		if (area->vaddr & ~PAGE_MASK) {
 			ret = area->vaddr;
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 5f3ad65c85de..d5b2604867e5 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -499,8 +499,9 @@ void prep_transhuge_page(struct page *page)
 	set_compound_page_dtor(page, TRANSHUGE_PAGE_DTOR);
 }
 
-unsigned long __thp_get_unmapped_area(struct file *filp, unsigned long len,
-		loff_t off, unsigned long flags, unsigned long size)
+unsigned long __thp_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+		unsigned long len, loff_t off, unsigned long flags,
+		unsigned long size)
 {
 	unsigned long addr;
 	loff_t off_end = off + len;
@@ -514,8 +515,8 @@ unsigned long __thp_get_unmapped_area(struct file *filp, unsigned long len,
 	if (len_pad < len || (off + len_pad) < off)
 		return 0;
 
-	addr = current->mm->get_unmapped_area(filp, 0, len_pad,
-					      off >> PAGE_SHIFT, flags);
+	addr = mm->get_unmapped_area(mm, filp, 0, len_pad, off >> PAGE_SHIFT,
+				     flags);
 	if (IS_ERR_VALUE(addr))
 		return 0;
 
@@ -523,8 +524,9 @@ unsigned long __thp_get_unmapped_area(struct file *filp, unsigned long len,
 	return addr;
 }
 
-unsigned long thp_get_unmapped_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long thp_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
 	loff_t off = (loff_t)pgoff << PAGE_SHIFT;
 
@@ -533,12 +535,12 @@ unsigned long thp_get_unmapped_area(struct file *filp, unsigned long addr,
 	if (!IS_DAX(filp->f_mapping->host) || !IS_ENABLED(CONFIG_FS_DAX_PMD))
 		goto out;
 
-	addr = __thp_get_unmapped_area(filp, len, off, flags, PMD_SIZE);
+	addr = __thp_get_unmapped_area(mm, filp, len, off, flags, PMD_SIZE);
 	if (addr)
 		return addr;
 
  out:
-	return current->mm->get_unmapped_area(filp, addr, len, pgoff, flags);
+	return mm->get_unmapped_area(mm, filp, addr, len, pgoff, flags);
 }
 EXPORT_SYMBOL_GPL(thp_get_unmapped_area);
 
diff --git a/mm/mmap.c b/mm/mmap.c
index ea79bc4da5b7..8a73dc458e69 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1339,7 +1339,7 @@ unsigned long do_mmap(struct mm_struct *mm, struct file *file,
 	/* Obtain the address to map to. we verify (or select) it and ensure
 	 * that it represents a valid section of the address space.
 	 */
-	addr = get_unmapped_area(file, addr, len, pgoff, flags);
+	addr = get_unmapped_area(mm, file, addr, len, pgoff, flags);
 	if (offset_in_page(addr))
 		return addr;
 
@@ -1742,7 +1742,8 @@ unsigned long mmap_region(struct mm_struct *mm, struct file *file,
 	return error;
 }
 
-unsigned long unmapped_area(struct vm_unmapped_area_info *info)
+unsigned long unmapped_area(struct mm_struct *mm,
+			    struct vm_unmapped_area_info *info)
 {
 	/*
 	 * We implement the search by looking for an rbtree node that
@@ -1752,7 +1753,6 @@ unsigned long unmapped_area(struct vm_unmapped_area_info *info)
 	 * - gap_end - gap_start >= length
 	 */
 
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	unsigned long length, low_limit, high_limit, gap_start, gap_end;
 
@@ -1844,9 +1844,9 @@ unsigned long unmapped_area(struct vm_unmapped_area_info *info)
 	return gap_start;
 }
 
-unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
+unsigned long unmapped_area_topdown(struct mm_struct *mm,
+				    struct vm_unmapped_area_info *info)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	unsigned long length, low_limit, high_limit, gap_start, gap_end;
 
@@ -1955,10 +1955,10 @@ unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
  */
 #ifndef HAVE_ARCH_UNMAPPED_AREA
 unsigned long
-arch_get_unmapped_area(struct file *filp, unsigned long addr,
-		unsigned long len, unsigned long pgoff, unsigned long flags)
+arch_get_unmapped_area(struct mm_struct *mm, struct file *filp,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
 {
-	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	struct vm_unmapped_area_info info;
 
@@ -1981,7 +1981,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.low_limit = mm->mmap_base;
 	info.high_limit = TASK_SIZE;
 	info.align_mask = 0;
-	return vm_unmapped_area(&info);
+	return vm_unmapped_area(mm, &info);
 }
 #endif
 
@@ -1991,12 +1991,11 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
  */
 #ifndef HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
 unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-			  const unsigned long len, const unsigned long pgoff,
-			  const unsigned long flags)
+arch_get_unmapped_area_topdown(struct mm_struct *mm, struct file *filp,
+			  const unsigned long addr0, const unsigned long len,
+			  const unsigned long pgoff, const unsigned long flags)
 {
 	struct vm_area_struct *vma;
-	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	struct vm_unmapped_area_info info;
 
@@ -2021,7 +2020,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.low_limit = max(PAGE_SIZE, mmap_min_addr);
 	info.high_limit = mm->mmap_base;
 	info.align_mask = 0;
-	addr = vm_unmapped_area(&info);
+	addr = vm_unmapped_area(mm, &info);
 
 	/*
 	 * A failed mmap() very likely causes application failure,
@@ -2034,7 +2033,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 		info.flags = 0;
 		info.low_limit = TASK_UNMAPPED_BASE;
 		info.high_limit = TASK_SIZE;
-		addr = vm_unmapped_area(&info);
+		addr = vm_unmapped_area(mm, &info);
 	}
 
 	return addr;
@@ -2042,11 +2041,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 #endif
 
 unsigned long
-get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
-		unsigned long pgoff, unsigned long flags)
+get_unmapped_area(struct mm_struct *mm, struct file *file, unsigned long addr,
+		  unsigned long len, unsigned long pgoff, unsigned long flags)
 {
-	unsigned long (*get_area)(struct file *, unsigned long,
-				  unsigned long, unsigned long, unsigned long);
+	unsigned long (*get_area)(struct mm_struct *, struct file *,
+				  unsigned long, unsigned long, unsigned long,
+				  unsigned long);
 
 	unsigned long error = arch_mmap_check(addr, len, flags);
 	if (error)
@@ -2056,7 +2056,7 @@ get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
 	if (len > TASK_SIZE)
 		return -ENOMEM;
 
-	get_area = current->mm->get_unmapped_area;
+	get_area = mm->get_unmapped_area;
 	if (file) {
 		if (file->f_op->get_unmapped_area)
 			get_area = file->f_op->get_unmapped_area;
@@ -2070,7 +2070,7 @@ get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
 		get_area = shmem_get_unmapped_area;
 	}
 
-	addr = get_area(file, addr, len, pgoff, flags);
+	addr = get_area(mm, file, addr, len, pgoff, flags);
 	if (IS_ERR_VALUE(addr))
 		return addr;
 
@@ -2819,7 +2819,7 @@ static int do_brk(unsigned long addr, unsigned long request)
 
 	flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
 
-	error = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED);
+	error = get_unmapped_area(mm, NULL, addr, len, 0, MAP_FIXED);
 	if (offset_in_page(error))
 		return error;
 
diff --git a/mm/mremap.c b/mm/mremap.c
index 30d7d2482eea..f085eed57bac 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -452,8 +452,9 @@ static unsigned long mremap_to(unsigned long addr, unsigned long old_len,
 	if (vma->vm_flags & VM_MAYSHARE)
 		map_flags |= MAP_SHARED;
 
-	ret = get_unmapped_area(vma->vm_file, new_addr, new_len, vma->vm_pgoff +
-				((addr - vma->vm_start) >> PAGE_SHIFT),
+	ret = get_unmapped_area(mm, vma->vm_file, new_addr, new_len,
+				vma->vm_pgoff +
+					((addr - vma->vm_start) >> PAGE_SHIFT),
 				map_flags);
 	if (offset_in_page(ret))
 		goto out1;
@@ -475,8 +476,8 @@ static int vma_expandable(struct vm_area_struct *vma, unsigned long delta)
 		return 0;
 	if (vma->vm_next && vma->vm_next->vm_start < end) /* intersection */
 		return 0;
-	if (get_unmapped_area(NULL, vma->vm_start, end - vma->vm_start,
-			      0, MAP_FIXED) & ~PAGE_MASK)
+	if (get_unmapped_area(vma->vm_mm, NULL, vma->vm_start,
+			      end - vma->vm_start, 0, MAP_FIXED) & ~PAGE_MASK)
 		return 0;
 	return 1;
 }
@@ -583,7 +584,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
 		if (vma->vm_flags & VM_MAYSHARE)
 			map_flags |= MAP_SHARED;
 
-		new_addr = get_unmapped_area(vma->vm_file, 0, new_len,
+		new_addr = get_unmapped_area(mm, vma->vm_file, 0, new_len,
 					vma->vm_pgoff +
 					((addr - vma->vm_start) >> PAGE_SHIFT),
 					map_flags);
diff --git a/mm/nommu.c b/mm/nommu.c
index 54825d29f50b..5075a56b75ec 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1333,8 +1333,9 @@ unsigned long do_mmap(struct mm_struct *mm,
 		 *   tell us the location of a shared mapping
 		 */
 		if (capabilities & NOMMU_MAP_DIRECT) {
-			addr = file->f_op->get_unmapped_area(file, addr, len,
-							     pgoff, flags);
+			addr = file->f_op->get_unmapped_area(mm, file, addr,
+							     len, pgoff,
+							     flags);
 			if (IS_ERR_VALUE(addr)) {
 				ret = addr;
 				if (ret != -ENOSYS)
@@ -1782,8 +1783,9 @@ int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
 }
 EXPORT_SYMBOL(remap_vmalloc_range);
 
-unsigned long arch_get_unmapped_area(struct file *file, unsigned long addr,
-	unsigned long len, unsigned long pgoff, unsigned long flags)
+unsigned long arch_get_unmapped_area(struct mm_struct *mm, struct file *file,
+	unsigned long addr, unsigned long len, unsigned long pgoff,
+	unsigned long flags)
 {
 	return -ENOMEM;
 }
diff --git a/mm/shmem.c b/mm/shmem.c
index 3a7587a0314d..5e27727c05a8 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1971,11 +1971,11 @@ static int shmem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	return ret;
 }
 
-unsigned long shmem_get_unmapped_area(struct file *file,
+unsigned long shmem_get_unmapped_area(struct mm_struct *mm, struct file *file,
 				      unsigned long uaddr, unsigned long len,
 				      unsigned long pgoff, unsigned long flags)
 {
-	unsigned long (*get_area)(struct file *,
+	unsigned long (*get_area)(struct mm_struct *mm, struct file *,
 		unsigned long, unsigned long, unsigned long, unsigned long);
 	unsigned long addr;
 	unsigned long offset;
@@ -1986,8 +1986,8 @@ unsigned long shmem_get_unmapped_area(struct file *file,
 	if (len > TASK_SIZE)
 		return -ENOMEM;
 
-	get_area = current->mm->get_unmapped_area;
-	addr = get_area(file, uaddr, len, pgoff, flags);
+	get_area = mm->get_unmapped_area;
+	addr = get_area(mm, file, uaddr, len, pgoff, flags);
 
 	if (!IS_ENABLED(CONFIG_TRANSPARENT_HUGE_PAGECACHE))
 		return addr;
@@ -2043,7 +2043,7 @@ unsigned long shmem_get_unmapped_area(struct file *file,
 	if (inflated_len < len)
 		return addr;
 
-	inflated_addr = get_area(NULL, 0, inflated_len, 0, flags);
+	inflated_addr = get_area(mm, NULL, 0, inflated_len, 0, flags);
 	if (IS_ERR_VALUE(inflated_addr))
 		return addr;
 	if (inflated_addr & ~PAGE_MASK)
@@ -3971,11 +3971,11 @@ void shmem_unlock_mapping(struct address_space *mapping)
 }
 
 #ifdef CONFIG_MMU
-unsigned long shmem_get_unmapped_area(struct file *file,
+unsigned long shmem_get_unmapped_area(struct mm_struct *mm, struct file *file,
 				      unsigned long addr, unsigned long len,
 				      unsigned long pgoff, unsigned long flags)
 {
-	return current->mm->get_unmapped_area(file, addr, len, pgoff, flags);
+	return mm->get_unmapped_area(mm, file, addr, len, pgoff, flags);
 }
 #endif
 
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 9d33c1e85c79..f3d2ee8ecf9f 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -3649,7 +3649,8 @@ static int snd_pcm_hw_params_old_user(struct snd_pcm_substream *substream,
 #endif /* CONFIG_SND_SUPPORT_OLD_API */
 
 #ifndef CONFIG_MMU
-static unsigned long snd_pcm_get_unmapped_area(struct file *file,
+static unsigned long snd_pcm_get_unmapped_area(struct mm_struct *mm,
+					       struct file *file,
 					       unsigned long addr,
 					       unsigned long len,
 					       unsigned long pgoff,
-- 
2.12.0

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From - Thu Nov 08 21:39:42 2018
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Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: [RFC PATCH 06/13] mm/mmap: Export 'vma_link' and 'find_vma_links' to mm subsystem
Date: Mon, 13 Mar 2017 15:14:08 -0700
Lines: 72
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To: Richard Henderson <rth@twiddle.net>,
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Xref: news.gmane.org gmane.linux.kernel.aio.general:4941 gmane.linux.kernel:2431237 gmane.linux.ports.alpha:4127 gmane.linux.kernel.arc:2216 gmane.linux.ports.arm.kernel:564751 gmane.linux.ports.hexagon:1152 gmane.linux.ports.ia64:27691 gmane.linux.kernel.metag:1261 gmane.linux.ports.mips.general:58337 gmane.linux.ports.parisc:27319 gmane.linux.ports.ppc64.devel:139530 gmane.linux.ports.sh.devel:55125 gmane.linux.ports.sparc:24722 gmane.linux.drivers.video-input-infrastructure:114745 gmane.linux.drivers.mtd:72536 gmane.linux.usb.general:156112 gmane.linux.file-systems:119082 gmane.linux.kernel.mm:168264 gmane.linux.kernel.api:22523 gmane.linux.kernel.cross-arch:35531 gmane.linux.alsa.devel:165309
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.aio.general/4941>

Make the functions 'vma_link' and 'find_vma_links' accessible to other
source files in the mm/ source directory of the kernel so that other files
in that directory can also perform low level changes to mm_struct data
structures.

Signed-off-by: Till Smejkal <till.smejkal@gmail.com>
---
 mm/internal.h | 11 +++++++++++
 mm/mmap.c     | 12 ++++++------
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/mm/internal.h b/mm/internal.h
index 7aa2ea0a8623..e22cb031b45b 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -76,6 +76,17 @@ static inline void set_page_refcounted(struct page *page)
 extern unsigned long highest_memmap_pfn;
 
 /*
+ * in mm/mmap.c
+ */
+extern void vma_link(struct mm_struct *mm, struct vm_area_struct *vma,
+		     struct vm_area_struct *prev, struct rb_node **rb_link,
+		     struct rb_node *rb_parent);
+extern int find_vma_links(struct mm_struct *mm, unsigned long addr,
+			  unsigned long end, struct vm_area_struct **pprev,
+			  struct rb_node ***rb_link,
+			  struct rb_node **rb_parent);
+
+/*
  * in mm/vmscan.c:
  */
 extern int isolate_lru_page(struct page *page);
diff --git a/mm/mmap.c b/mm/mmap.c
index 3f60c8ebd6b6..d35c6b51cadf 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -466,9 +466,9 @@ anon_vma_interval_tree_post_update_vma(struct vm_area_struct *vma)
 		anon_vma_interval_tree_insert(avc, &avc->anon_vma->rb_root);
 }
 
-static int find_vma_links(struct mm_struct *mm, unsigned long addr,
-		unsigned long end, struct vm_area_struct **pprev,
-		struct rb_node ***rb_link, struct rb_node **rb_parent)
+int find_vma_links(struct mm_struct *mm, unsigned long addr,
+		   unsigned long end, struct vm_area_struct **pprev,
+		   struct rb_node ***rb_link, struct rb_node **rb_parent)
 {
 	struct rb_node **__rb_link, *__rb_parent, *rb_prev;
 
@@ -580,9 +580,9 @@ __vma_link(struct mm_struct *mm, struct vm_area_struct *vma,
 	__vma_link_rb(mm, vma, rb_link, rb_parent);
 }
 
-static void vma_link(struct mm_struct *mm, struct vm_area_struct *vma,
-			struct vm_area_struct *prev, struct rb_node **rb_link,
-			struct rb_node *rb_parent)
+void vma_link(struct mm_struct *mm, struct vm_area_struct *vma,
+	      struct vm_area_struct *prev, struct rb_node **rb_link,
+	      struct rb_node *rb_parent)
 {
 	struct address_space *mapping = NULL;
 
-- 
2.12.0

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From - Thu Nov 08 21:39:42 2018
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From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.aio.general,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: [RFC PATCH 07/13] kernel/fork: Split and export 'mm_alloc' and 'mm_init'
Date: Mon, 13 Mar 2017 15:14:09 -0700
Lines: 219
Approved: news@gmane.org
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	alsa-devel@alsa-project.org
To: Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	Vineet Gupta <vgupta@synopsys.com>,
	Russell King <linux@armlinux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Steven Miao <realmz6@gmail.com>,
	Richard Kuo <rkuo@codeaurora.org>,
	Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
	James Hogan <james.hogan@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	"David S. Miller" <davem@dave
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Xref: news.gmane.org gmane.linux.kernel.mm:168265 gmane.linux.kernel:2431238 gmane.linux.ports.alpha:4128 gmane.linux.kernel.arc:2217 gmane.linux.ports.arm.kernel:564752 gmane.linux.ports.hexagon:1153 gmane.linux.ports.ia64:27692 gmane.linux.kernel.metag:1262 gmane.linux.ports.mips.general:58338 gmane.linux.ports.parisc:27320 gmane.linux.ports.ppc64.devel:139531 gmane.linux.ports.sh.devel:55126 gmane.linux.ports.sparc:24723 gmane.linux.drivers.video-input-infrastructure:114746 gmane.linux.drivers.mtd:72537 gmane.linux.usb.general:156113 gmane.linux.file-systems:119083 gmane.linux.kernel.aio.general:4942 gmane.linux.kernel.api:22524 gmane.linux.kernel.cross-arch:35532 gmane.linux.alsa.devel:165310
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/168265>

The only way until now to create a new memory map was via the exported
function 'mm_alloc'. Unfortunately, this function not only allocates a new
memory map, but also completely initializes it. However, with the
introduction of first class virtual address spaces, some initialization
steps done in 'mm_alloc' are not applicable to the memory maps needed for
this feature and hence would lead to errors in the kernel code.

Instead of introducing a new function that can allocate and initialize
memory maps for first class virtual address spaces and potentially
duplicate some code, I decided to split the mm_alloc function as well as
the 'mm_init' function that it uses.

Now there are four functions exported instead of only one. The new
'mm_alloc' function only allocates a new mm_struct and zeros it out. If one
want to have the old behavior of mm_alloc one can use the newly introduced
function 'mm_alloc_and_setup' which not only allocates a new mm_struct but
also fully initializes it.

The old 'mm_init' function which fully initialized a mm_struct was split up
into two separate functions. The first one - 'mm_setup' - does all the
initialization of the mm_struct that is not related to the mm_struct
belonging to a particular task. This part of the initialization is done in
the 'mm_set_task' function. This way it is possible to create memory maps
that don't have any task-specific information as needed by the first class
virtual address space feature. Both functions, 'mm_setup' and 'mm_set_task'
are also exported, so that they can be used in all files in the source
tree.

Signed-off-by: Till Smejkal <till.smejkal@gmail.com>
---
 arch/arm/mach-rpc/ecard.c |  2 +-
 fs/exec.c                 |  2 +-
 include/linux/sched.h     |  7 +++++-
 kernel/fork.c             | 64 +++++++++++++++++++++++++++++++++++++----------
 4 files changed, 59 insertions(+), 16 deletions(-)

diff --git a/arch/arm/mach-rpc/ecard.c b/arch/arm/mach-rpc/ecard.c
index dc67a7fb3831..15845e8abd7e 100644
--- a/arch/arm/mach-rpc/ecard.c
+++ b/arch/arm/mach-rpc/ecard.c
@@ -245,7 +245,7 @@ static void ecard_init_pgtables(struct mm_struct *mm)
 
 static int ecard_init_mm(void)
 {
-	struct mm_struct * mm = mm_alloc();
+	struct mm_struct *mm = mm_alloc_and_setup();
 	struct mm_struct *active_mm = current->active_mm;
 
 	if (!mm)
diff --git a/fs/exec.c b/fs/exec.c
index e57946610733..68d7908a1e5a 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -380,7 +380,7 @@ static int bprm_mm_init(struct linux_binprm *bprm)
 	int err;
 	struct mm_struct *mm = NULL;
 
-	bprm->mm = mm = mm_alloc();
+	bprm->mm = mm = mm_alloc_and_setup();
 	err = -ENOMEM;
 	if (!mm)
 		goto err;
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 42b9b93a50ac..7955adc00397 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2922,7 +2922,12 @@ static inline unsigned long sigsp(unsigned long sp, struct ksignal *ksig)
 /*
  * Routines for handling mm_structs
  */
-extern struct mm_struct * mm_alloc(void);
+extern struct mm_struct *mm_setup(struct mm_struct *mm);
+extern struct mm_struct *mm_set_task(struct mm_struct *mm,
+				     struct task_struct *p,
+				     struct user_namespace *user_ns);
+extern struct mm_struct *mm_alloc(void);
+extern struct mm_struct *mm_alloc_and_setup(void);
 
 /* mmdrop drops the mm and the page tables */
 extern void __mmdrop(struct mm_struct *);
diff --git a/kernel/fork.c b/kernel/fork.c
index 11c5c8ab827c..9209f6d5d7c0 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -747,8 +747,10 @@ static void mm_init_owner(struct mm_struct *mm, struct task_struct *p)
 #endif
 }
 
-static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p,
-	struct user_namespace *user_ns)
+/**
+ * Initialize all the task-unrelated fields of a mm_struct.
+ **/
+struct mm_struct *mm_setup(struct mm_struct *mm)
 {
 	mm->mmap = NULL;
 	mm->mm_rb = RB_ROOT;
@@ -767,24 +769,37 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p,
 	spin_lock_init(&mm->page_table_lock);
 	mm_init_cpumask(mm);
 	mm_init_aio(mm);
-	mm_init_owner(mm, p);
 	mmu_notifier_mm_init(mm);
 	clear_tlb_flush_pending(mm);
 #if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
 	mm->pmd_huge_pte = NULL;
 #endif
 
+	mm->flags = default_dump_filter;
+	mm->def_flags = 0;
+
+	if (mm_alloc_pgd(mm))
+		goto fail_nopgd;
+
+	return mm;
+
+fail_nopgd:
+	free_mm(mm);
+	return NULL;
+}
+
+/**
+ * Initialize all the task-related fields of a mm_struct.
+ **/
+struct mm_struct *mm_set_task(struct mm_struct *mm, struct task_struct *p,
+			      struct user_namespace *user_ns)
+{
 	if (current->mm) {
 		mm->flags = current->mm->flags & MMF_INIT_MASK;
 		mm->def_flags = current->mm->def_flags & VM_INIT_DEF_MASK;
-	} else {
-		mm->flags = default_dump_filter;
-		mm->def_flags = 0;
 	}
 
-	if (mm_alloc_pgd(mm))
-		goto fail_nopgd;
-
+	mm_init_owner(mm, p);
 	if (init_new_context(p, mm))
 		goto fail_nocontext;
 
@@ -793,11 +808,21 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p,
 
 fail_nocontext:
 	mm_free_pgd(mm);
-fail_nopgd:
 	free_mm(mm);
 	return NULL;
 }
 
+static struct mm_struct *mm_setup_all(struct mm_struct *mm,
+				      struct task_struct *p,
+				      struct user_namespace *user_ns)
+{
+	mm = mm_setup(mm);
+	if (!mm)
+		return NULL;
+
+	return mm_set_task(mm, p, user_ns);
+}
+
 static void check_mm(struct mm_struct *mm)
 {
 	int i;
@@ -822,10 +847,22 @@ static void check_mm(struct mm_struct *mm)
 #endif
 }
 
+struct mm_struct *mm_alloc(void)
+{
+	struct mm_struct *mm;
+
+	mm = allocate_mm();
+	if (!mm)
+		return NULL;
+
+	memset(mm, 0, sizeof(*mm));
+	return mm;
+}
+
 /*
  * Allocate and initialize an mm_struct.
  */
-struct mm_struct *mm_alloc(void)
+struct mm_struct *mm_alloc_and_setup(void)
 {
 	struct mm_struct *mm;
 
@@ -834,9 +871,10 @@ struct mm_struct *mm_alloc(void)
 		return NULL;
 
 	memset(mm, 0, sizeof(*mm));
-	return mm_init(mm, current, current_user_ns());
+	return mm_setup_all(mm, current, current_user_ns());
 }
 
+
 /*
  * Called when the last reference to the mm
  * is dropped: either by a lazy thread or by
@@ -1131,7 +1169,7 @@ static struct mm_struct *dup_mm(struct task_struct *tsk)
 
 	memcpy(mm, oldmm, sizeof(*mm));
 
-	if (!mm_init(mm, tsk, mm->user_ns))
+	if (!mm_setup_all(mm, tsk, mm->user_ns))
 		goto fail_nomem;
 
 	err = dup_mmap(mm, oldmm);
-- 
2.12.0

--
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From - Thu Nov 08 21:39:42 2018
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From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: [RFC PATCH 08/13] kernel/fork: Define explicitly which mm_struct to duplicate during fork
Date: Mon, 13 Mar 2017 15:14:10 -0700
Lines: 46
Approved: news@gmane.org
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The dup_mm-function used during 'do_fork' to duplicate the current task's
mm_struct for the newly forked task always implicitly uses current->mm for
this purpose. However, during copy_mm it was already decided which
mm_struct to copy/duplicate. So pass this mm_struct to dup_mm instead of
again deciding which mm_struct to use.

Signed-off-by: Till Smejkal <till.smejkal@gmail.com>
---
 kernel/fork.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index 9209f6d5d7c0..d3087d870855 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1158,9 +1158,10 @@ void mm_release(struct task_struct *tsk, struct mm_struct *mm)
  * Allocate a new mm structure and copy contents from the
  * mm structure of the passed in task structure.
  */
-static struct mm_struct *dup_mm(struct task_struct *tsk)
+static struct mm_struct *dup_mm(struct task_struct *tsk,
+				struct mm_struct *oldmm)
 {
-	struct mm_struct *mm, *oldmm = current->mm;
+	struct mm_struct *mm;
 	int err;
 
 	mm = allocate_mm();
@@ -1226,7 +1227,7 @@ static int copy_mm(unsigned long clone_flags, struct task_struct *tsk)
 	}
 
 	retval = -ENOMEM;
-	mm = dup_mm(tsk);
+	mm = dup_mm(tsk, oldmm);
 	if (!mm)
 		goto fail_nomem;
 
-- 
2.12.0

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From - Thu Nov 08 21:39:42 2018
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From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: [RFC PATCH 09/13] mm/memory: Add function to one-to-one duplicate page ranges
Date: Mon, 13 Mar 2017 15:14:11 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.aio.general/4944>

Add new function to one-to-one duplicate a page table range of one memory
map to another memory map. The new function 'dup_page_range' copies the
page table entries for the specified region from the page table of the
source memory map to the page table of the destination memory map and
thereby allows actual sharing of the referenced memory pages instead of
relying on copy-on-write for anonymous memory pages or page faults for
read-only memory pages as it is done by the existing function
'copy_page_range'. Hence, 'dup_page_range' will produce shared pages
between two address spaces whereas 'copy_page_range' will result in copies
of pages if necessary.

Preexisting mappings in the page table of the destination memory map are
properly zapped by the 'dup_page_range' function if they differ from the
ones in the source memory map before they are replaced with the new ones.

Signed-off-by: Till Smejkal <till.smejkal@gmail.com>
---
 include/linux/huge_mm.h |   6 +
 include/linux/hugetlb.h |   5 +
 include/linux/mm.h      |   2 +
 mm/huge_memory.c        |  65 +++++++
 mm/hugetlb.c            | 205 +++++++++++++++------
 mm/memory.c             | 461 +++++++++++++++++++++++++++++++++++++++++-------
 6 files changed, 620 insertions(+), 124 deletions(-)

diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 94a0e680b7d7..52c0498426ef 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -5,6 +5,12 @@ extern int do_huge_pmd_anonymous_page(struct vm_fault *vmf);
 extern int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 			 pmd_t *dst_pmd, pmd_t *src_pmd, unsigned long addr,
 			 struct vm_area_struct *vma);
+extern int dup_huge_pmd(struct mm_struct *dst_mm,
+			struct vm_area_struct *dst_vma,
+			struct mm_struct *src_mm,
+			struct vm_area_struct *src_vma,
+			struct mmu_gather *tlb, pmd_t *dst_pmd, pmd_t *src_pmd,
+			unsigned long addr);
 extern void huge_pmd_set_accessed(struct vm_fault *vmf, pmd_t orig_pmd);
 extern int do_huge_pmd_wp_page(struct vm_fault *vmf, pmd_t orig_pmd);
 extern struct page *follow_trans_huge_pmd(struct vm_area_struct *vma,
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 72260cc252f2..d8eb682e39a1 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -63,6 +63,10 @@ int hugetlb_mempolicy_sysctl_handler(struct ctl_table *, int,
 #endif
 
 int copy_hugetlb_page_range(struct mm_struct *, struct mm_struct *, struct vm_area_struct *);
+int dup_hugetlb_page_range(struct mm_struct *dst_mm,
+			   struct vm_area_struct *dst_vma,
+			   struct mm_struct *src_mm,
+			   struct vm_area_struct *src_vma);
 long follow_hugetlb_page(struct mm_struct *, struct vm_area_struct *,
 			 struct page **, struct vm_area_struct **,
 			 unsigned long *, unsigned long *, long, unsigned int);
@@ -134,6 +138,7 @@ static inline unsigned long hugetlb_total_pages(void)
 #define follow_hugetlb_page(m,v,p,vs,a,b,i,w)	({ BUG(); 0; })
 #define follow_huge_addr(mm, addr, write)	ERR_PTR(-EINVAL)
 #define copy_hugetlb_page_range(src, dst, vma)	({ BUG(); 0; })
+#define dup_hugetlb_page_range(dst, dst_vma, src, src_vma) ({ BUG(); 0; })
 static inline void hugetlb_report_meminfo(struct seq_file *m)
 {
 }
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 92925d97da20..b39ec795f64c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1208,6 +1208,8 @@ void free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 		unsigned long end, unsigned long floor, unsigned long ceiling);
 int copy_page_range(struct mm_struct *dst, struct mm_struct *src,
 			struct vm_area_struct *vma);
+int dup_page_range(struct mm_struct *dst, struct vm_area_struct *dst_vma,
+		   struct mm_struct *src, struct vm_area_struct *src_vma);
 void unmap_mapping_range(struct address_space *mapping,
 		loff_t const holebegin, loff_t const holelen, int even_cows);
 int follow_pte_pmd(struct mm_struct *mm, unsigned long address,
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index d5b2604867e5..1edf8c6d1814 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -887,6 +887,71 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	return ret;
 }
 
+int dup_huge_pmd(struct mm_struct *dst_mm, struct vm_area_struct *dst_vma,
+		 struct mm_struct *src_mm, struct vm_area_struct *src_vma,
+		 struct mmu_gather *tlb, pmd_t *dst_pmd, pmd_t *src_pmd,
+		 unsigned long addr)
+{
+	spinlock_t *dst_ptl, *src_ptl;
+	struct page *page;
+	pmd_t pmd;
+	pgtable_t pgtable;
+	int ret;
+
+	pgtable = pte_alloc_one(dst_mm, addr);
+	if (!pgtable)
+		return -ENOMEM;
+
+	if (!pmd_none_or_clear_bad(dst_pmd) &&
+	    unlikely(zap_huge_pmd(tlb, dst_vma, dst_pmd, addr)))
+		return -ENOMEM;
+
+	dst_ptl = pmd_lock(dst_mm, dst_pmd);
+	src_ptl = pmd_lockptr(src_mm, src_pmd);
+	spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING);
+
+	if (!pmd_trans_huge(*src_pmd)) {
+		pte_free(dst_mm, pgtable);
+		ret = -EAGAIN;
+		goto out_unlock;
+	}
+
+	if (is_huge_zero_pmd(*src_pmd)) {
+		struct page *zero_page;
+
+		zero_page = mm_get_huge_zero_page(dst_mm);
+		set_huge_zero_page(pgtable, dst_mm, dst_vma, addr, dst_pmd,
+				   zero_page);
+
+		ret = 0;
+		goto out_unlock;
+	}
+
+	pmd = *src_pmd;
+
+	page = pmd_page(pmd);
+	VM_BUG_ON_PAGE(!PageHead(page), page);
+	get_page(page);
+	page_dup_rmap(page, true);
+
+	add_mm_counter(dst_mm, MM_ANONPAGES, HPAGE_PMD_NR);
+	atomic_long_inc(&dst_mm->nr_ptes);
+	pgtable_trans_huge_deposit(dst_mm, dst_pmd, pgtable);
+
+	if (!(dst_vma->vm_flags & VM_WRITE))
+		pmd = pmd_wrprotect(pmd);
+	pmd = pmd_mkold(pmd);
+
+	set_pmd_at(dst_mm, addr, dst_pmd, pmd);
+	ret = 0;
+
+out_unlock:
+	spin_unlock(src_ptl);
+	spin_unlock(dst_ptl);
+
+	return ret;
+}
+
 void huge_pmd_set_accessed(struct vm_fault *vmf, pmd_t orig_pmd)
 {
 	pmd_t entry;
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index c7025c132670..776c024de7c1 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -3286,6 +3286,74 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
 	return ret;
 }
 
+static inline int
+unmap_one_hugepage(struct mmu_gather *tlb, struct vm_area_struct *vma,
+		   pte_t *ptep, unsigned long addr, struct page *ref_page)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	pte_t pte;
+	spinlock_t *ptl;
+	struct page *page;
+	struct hstate *h = hstate_vma(vma);
+
+	ptl = huge_pte_lock(h, mm, ptep);
+	if (huge_pmd_unshare(mm, &addr, ptep)) {
+		spin_unlock(ptl);
+		return 0;
+	}
+
+	pte = huge_ptep_get(ptep);
+	if (huge_pte_none(pte)) {
+		spin_unlock(ptl);
+		return 0;
+	}
+
+	/*
+	 * Migrating hugepage or HWPoisoned hugepage is already
+	 * unmapped and its refcount is dropped, so just clear pte here.
+	 */
+	if (unlikely(!pte_present(pte))) {
+		huge_pte_clear(mm, addr, ptep);
+		spin_unlock(ptl);
+		return 0;
+	}
+
+	page = pte_page(pte);
+	/*
+	 * If a reference page is supplied, it is because a specific
+	 * page is being unmapped, not a range. Ensure the page we
+	 * are about to unmap is the actual page of interest.
+	 */
+	if (ref_page) {
+		if (page != ref_page) {
+			spin_unlock(ptl);
+			return 0;
+		}
+		/*
+		 * Mark the VMA as having unmapped its page so that
+		 * future faults in this VMA will fail rather than
+		 * looking like data was lost
+		 */
+		set_vma_resv_flags(vma, HPAGE_RESV_UNMAPPED);
+	}
+
+	pte = huge_ptep_get_and_clear(mm, addr, ptep);
+	tlb_remove_huge_tlb_entry(h, tlb, ptep, addr);
+	if (huge_pte_dirty(pte))
+		set_page_dirty(page);
+
+	hugetlb_count_sub(pages_per_huge_page(h), mm);
+	page_remove_rmap(page, true);
+
+	spin_unlock(ptl);
+	tlb_remove_page_size(tlb, page, huge_page_size(h));
+
+	/*
+	 * Bail out after unmapping reference page if supplied
+	 */
+	return ref_page ? 1 : 0;
+}
+
 void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
 			    unsigned long start, unsigned long end,
 			    struct page *ref_page)
@@ -3293,9 +3361,6 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
 	struct mm_struct *mm = vma->vm_mm;
 	unsigned long address;
 	pte_t *ptep;
-	pte_t pte;
-	spinlock_t *ptl;
-	struct page *page;
 	struct hstate *h = hstate_vma(vma);
 	unsigned long sz = huge_page_size(h);
 	const unsigned long mmun_start = start;	/* For mmu_notifiers */
@@ -3318,62 +3383,10 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
 		if (!ptep)
 			continue;
 
-		ptl = huge_pte_lock(h, mm, ptep);
-		if (huge_pmd_unshare(mm, &address, ptep)) {
-			spin_unlock(ptl);
-			continue;
-		}
-
-		pte = huge_ptep_get(ptep);
-		if (huge_pte_none(pte)) {
-			spin_unlock(ptl);
-			continue;
-		}
-
-		/*
-		 * Migrating hugepage or HWPoisoned hugepage is already
-		 * unmapped and its refcount is dropped, so just clear pte here.
-		 */
-		if (unlikely(!pte_present(pte))) {
-			huge_pte_clear(mm, address, ptep);
-			spin_unlock(ptl);
-			continue;
-		}
-
-		page = pte_page(pte);
-		/*
-		 * If a reference page is supplied, it is because a specific
-		 * page is being unmapped, not a range. Ensure the page we
-		 * are about to unmap is the actual page of interest.
-		 */
-		if (ref_page) {
-			if (page != ref_page) {
-				spin_unlock(ptl);
-				continue;
-			}
-			/*
-			 * Mark the VMA as having unmapped its page so that
-			 * future faults in this VMA will fail rather than
-			 * looking like data was lost
-			 */
-			set_vma_resv_flags(vma, HPAGE_RESV_UNMAPPED);
-		}
-
-		pte = huge_ptep_get_and_clear(mm, address, ptep);
-		tlb_remove_huge_tlb_entry(h, tlb, ptep, address);
-		if (huge_pte_dirty(pte))
-			set_page_dirty(page);
-
-		hugetlb_count_sub(pages_per_huge_page(h), mm);
-		page_remove_rmap(page, true);
-
-		spin_unlock(ptl);
-		tlb_remove_page_size(tlb, page, huge_page_size(h));
-		/*
-		 * Bail out after unmapping reference page if supplied
-		 */
-		if (ref_page)
+		if (unlikely(unmap_one_hugepage(tlb, vma, ptep, address,
+						ref_page)))
 			break;
+
 	}
 	mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
 	tlb_end_vma(tlb, vma);
@@ -3411,6 +3424,82 @@ void unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start,
 	tlb_finish_mmu(&tlb, start, end);
 }
 
+int dup_hugetlb_page_range(struct mm_struct *dst_mm,
+			   struct vm_area_struct *dst_vma,
+			   struct mm_struct *src_mm,
+			   struct vm_area_struct *src_vma)
+{
+	pte_t *dst_pte, *src_pte;
+	struct mmu_gather tlb;
+	struct hstate *h = hstate_vma(dst_vma);
+	unsigned long addr;
+	unsigned long mmu_start = dst_vma->vm_start;
+	unsigned long mmu_end = dst_vma->vm_end;
+	unsigned long size = huge_page_size(h);
+	int ret;
+
+	tlb_gather_mmu(&tlb, dst_mm, mmu_start, mmu_end);
+	tlb_remove_check_page_size_change(&tlb, size);
+	mmu_notifier_invalidate_range_start(dst_mm, mmu_start, mmu_end);
+
+	for (addr = src_vma->vm_start; addr < src_vma->vm_end; addr += size) {
+		pte_t pte;
+		spinlock_t *dst_ptl, *src_ptl;
+		struct page *page;
+
+		dst_pte = huge_pte_offset(dst_mm, addr);
+		src_pte = huge_pte_offset(src_mm, addr);
+
+		if (dst_pte == src_pte)
+			/* Just continue if the ptes are already equal. */
+			continue;
+		else if (dst_pte && !huge_pte_none(*dst_pte))
+			/*
+			 * ptes are not equal, so we have to get rid of the old
+			 * mapping in the destination page table.
+			 */
+			unmap_one_hugepage(&tlb, dst_vma, dst_pte, addr, NULL);
+
+		if (!src_pte || huge_pte_none(*src_pte))
+			continue;
+
+		dst_pte = huge_pte_alloc(dst_mm, addr, size);
+		if (!dst_pte) {
+			ret = -ENOMEM;
+			break;
+		}
+
+		dst_ptl = huge_pte_lock(h, dst_mm, dst_pte);
+		src_ptl = huge_pte_lockptr(h, src_mm, src_pte);
+		spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING);
+
+		pte = huge_ptep_get(src_pte);
+		page = pte_page(pte);
+		if (page) {
+			get_page(page);
+			page_dup_rmap(page, true);
+		}
+
+		if (likely(!is_hugetlb_entry_migration(pte) &&
+			   !is_hugetlb_entry_hwpoisoned(pte)))
+			hugetlb_count_add(pages_per_huge_page(h), dst_mm);
+
+		if (!(dst_vma->vm_flags & VM_WRITE))
+			pte = pte_wrprotect(pte);
+		pte = pte_mkold(pte);
+
+		set_huge_pte_at(dst_mm, addr, dst_pte, pte);
+
+		spin_unlock(src_ptl);
+		spin_unlock(dst_ptl);
+	}
+
+	mmu_notifier_invalidate_range_end(dst_mm, mmu_start, mmu_end);
+	tlb_finish_mmu(&tlb, mmu_start, mmu_end);
+
+	return ret;
+}
+
 /*
  * This is called when the original mapper is failing to COW a MAP_PRIVATE
  * mappping it owns the reserve page for. The intention is to unmap the page
diff --git a/mm/memory.c b/mm/memory.c
index 6bf2b471e30c..7026f2146fcd 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1108,6 +1108,82 @@ int copy_page_range(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	return ret;
 }
 
+static unsigned long zap_one_pte(struct mmu_gather *tlb,
+				 struct vm_area_struct *vma, pte_t *pte,
+				 unsigned long *paddr, int *force_flush,
+				 int *rss, struct zap_details *details)
+{
+	unsigned long addr = *paddr;
+	struct mm_struct *mm = tlb->mm;
+	swp_entry_t entry;
+	pte_t ptent = *pte;
+
+	if (pte_present(ptent)) {
+		struct page *page;
+
+		page = vm_normal_page(vma, addr, ptent);
+		if (unlikely(details) && page) {
+			/*
+			 * unmap_shared_mapping_pages() wants to
+			 * invalidate cache without truncating:
+			 * unmap shared but keep private pages.
+			 */
+			if (details->check_mapping &&
+			    details->check_mapping != page_rmapping(page))
+				return 0;
+		}
+		ptent = ptep_get_and_clear_full(mm, addr, pte,
+						tlb->fullmm);
+		tlb_remove_tlb_entry(tlb, pte, addr);
+		if (unlikely(!page))
+			return 0;
+
+		if (!PageAnon(page)) {
+			if (pte_dirty(ptent)) {
+				/*
+				 * oom_reaper cannot tear down dirty
+				 * pages
+				 */
+				if (unlikely(details && details->ignore_dirty))
+					return 0;
+				*force_flush = 1;
+				set_page_dirty(page);
+			}
+			if (pte_young(ptent) &&
+			    likely(!(vma->vm_flags & VM_SEQ_READ)))
+				mark_page_accessed(page);
+		}
+		rss[mm_counter(page)]--;
+		page_remove_rmap(page, false);
+		if (unlikely(page_mapcount(page) < 0))
+			print_bad_pte(vma, addr, ptent, page);
+		if (unlikely(__tlb_remove_page(tlb, page))) {
+			*force_flush = 1;
+			*paddr += PAGE_SIZE;
+			return 1;
+		}
+		return 0;
+	}
+	/* only check swap_entries if explicitly asked for in details */
+	if (unlikely(details && !details->check_swap_entries))
+		return 0;
+
+	entry = pte_to_swp_entry(ptent);
+	if (!non_swap_entry(entry))
+		rss[MM_SWAPENTS]--;
+	else if (is_migration_entry(entry)) {
+		struct page *page;
+
+		page = migration_entry_to_page(entry);
+		rss[mm_counter(page)]--;
+	}
+	if (unlikely(!free_swap_and_cache(entry)))
+		print_bad_pte(vma, addr, ptent, NULL);
+	pte_clear_not_present_full(mm, addr, pte, tlb->fullmm);
+
+	return 0;
+}
+
 static unsigned long zap_pte_range(struct mmu_gather *tlb,
 				struct vm_area_struct *vma, pmd_t *pmd,
 				unsigned long addr, unsigned long end,
@@ -1119,7 +1195,6 @@ static unsigned long zap_pte_range(struct mmu_gather *tlb,
 	spinlock_t *ptl;
 	pte_t *start_pte;
 	pte_t *pte;
-	swp_entry_t entry;
 
 	tlb_remove_check_page_size_change(tlb, PAGE_SIZE);
 again:
@@ -1128,73 +1203,12 @@ static unsigned long zap_pte_range(struct mmu_gather *tlb,
 	pte = start_pte;
 	arch_enter_lazy_mmu_mode();
 	do {
-		pte_t ptent = *pte;
-		if (pte_none(ptent)) {
-			continue;
-		}
-
-		if (pte_present(ptent)) {
-			struct page *page;
-
-			page = vm_normal_page(vma, addr, ptent);
-			if (unlikely(details) && page) {
-				/*
-				 * unmap_shared_mapping_pages() wants to
-				 * invalidate cache without truncating:
-				 * unmap shared but keep private pages.
-				 */
-				if (details->check_mapping &&
-				    details->check_mapping != page_rmapping(page))
-					continue;
-			}
-			ptent = ptep_get_and_clear_full(mm, addr, pte,
-							tlb->fullmm);
-			tlb_remove_tlb_entry(tlb, pte, addr);
-			if (unlikely(!page))
-				continue;
-
-			if (!PageAnon(page)) {
-				if (pte_dirty(ptent)) {
-					/*
-					 * oom_reaper cannot tear down dirty
-					 * pages
-					 */
-					if (unlikely(details && details->ignore_dirty))
-						continue;
-					force_flush = 1;
-					set_page_dirty(page);
-				}
-				if (pte_young(ptent) &&
-				    likely(!(vma->vm_flags & VM_SEQ_READ)))
-					mark_page_accessed(page);
-			}
-			rss[mm_counter(page)]--;
-			page_remove_rmap(page, false);
-			if (unlikely(page_mapcount(page) < 0))
-				print_bad_pte(vma, addr, ptent, page);
-			if (unlikely(__tlb_remove_page(tlb, page))) {
-				force_flush = 1;
-				addr += PAGE_SIZE;
-				break;
-			}
-			continue;
-		}
-		/* only check swap_entries if explicitly asked for in details */
-		if (unlikely(details && !details->check_swap_entries))
+		if (pte_none(*pte))
 			continue;
 
-		entry = pte_to_swp_entry(ptent);
-		if (!non_swap_entry(entry))
-			rss[MM_SWAPENTS]--;
-		else if (is_migration_entry(entry)) {
-			struct page *page;
-
-			page = migration_entry_to_page(entry);
-			rss[mm_counter(page)]--;
-		}
-		if (unlikely(!free_swap_and_cache(entry)))
-			print_bad_pte(vma, addr, ptent, NULL);
-		pte_clear_not_present_full(mm, addr, pte, tlb->fullmm);
+		if (unlikely(zap_one_pte(tlb, vma, pte, &addr, &force_flush,
+					 rss, details)))
+			break;
 	} while (pte++, addr += PAGE_SIZE, addr != end);
 
 	add_mm_rss_vec(mm, rss);
@@ -1445,6 +1459,321 @@ int zap_vma_ptes(struct vm_area_struct *vma, unsigned long address,
 }
 EXPORT_SYMBOL_GPL(zap_vma_ptes);
 
+static inline int
+dup_one_pte(struct mm_struct *dst_mm, struct vm_area_struct *dst_vma,
+	    struct mm_struct *src_mm, struct vm_area_struct *src_vma,
+	    struct mmu_gather *tlb, pte_t *dst_pte, pte_t *src_pte,
+	    unsigned long addr, int *force_flush, int *rss)
+{
+	unsigned long raddr = addr;
+	pte_t pte = *src_pte;
+	struct page *page;
+
+	/*
+	 * If the ptes are already exactly the same, we don't have to do
+	 * anything.
+	 */
+	if (likely(src_pte == dst_pte))
+		return 0;
+
+	/* Remove the old mapping first */
+	if (!pte_none(*dst_pte) &&
+	    unlikely(zap_one_pte(tlb, dst_vma, dst_pte, &raddr, force_flush,
+				 rss, NULL)))
+		return -ENOMEM;
+
+	/* pte contains position in swap or file, so copy. */
+	if (unlikely(!pte_present(pte))) {
+		swp_entry_t entry = pte_to_swp_entry(pte);
+
+		if (likely(!non_swap_entry(entry))) {
+			if (swap_duplicate(entry) < 0)
+				return entry.val;
+
+			/* make sure dst_mm is on swapoff's mmlist. */
+			if (unlikely(list_empty(&dst_mm->mmlist))) {
+				spin_lock(&mmlist_lock);
+				if (list_empty(&dst_mm->mmlist))
+					list_add(&dst_mm->mmlist,
+							&src_mm->mmlist);
+				spin_unlock(&mmlist_lock);
+			}
+			rss[MM_SWAPENTS]++;
+		} else if (is_migration_entry(entry)) {
+			page = migration_entry_to_page(entry);
+
+			rss[mm_counter(page)]++;
+		}
+		goto out_set_pte;
+	}
+
+	pte = pte_mkold(pte);
+
+	page = vm_normal_page(src_vma, addr, pte);
+	if (page) {
+		get_page(page);
+		page_dup_rmap(page, false);
+		rss[mm_counter(page)]++;
+	}
+
+out_set_pte:
+	if (!(dst_vma->vm_flags & VM_WRITE))
+		pte = pte_wrprotect(pte);
+
+	set_pte_at(dst_mm, addr, dst_pte, pte);
+	return 0;
+}
+
+static inline int
+dup_pte_range(struct mm_struct *dst_mm, struct vm_area_struct *dst_vma,
+	      struct mm_struct *src_mm, struct vm_area_struct *src_vma,
+	      struct mmu_gather *tlb, pmd_t *dst_pmd, pmd_t *src_pmd,
+	      unsigned long addr, unsigned long end)
+{
+	pte_t *orig_dst_pte, *orig_src_pte;
+	pte_t *dst_pte, *src_pte;
+	spinlock_t *dst_ptl, *src_ptl;
+	int force_flush = 0;
+	int progress = 0;
+	int rss[NR_MM_COUNTERS];
+	swp_entry_t entry = (swp_entry_t){0};
+
+again:
+	init_rss_vec(rss);
+
+	dst_pte = pte_alloc_map_lock(dst_mm, dst_pmd, addr, &dst_ptl);
+	if (!dst_pte)
+		return -ENOMEM;
+	src_pte = pte_offset_map(src_pmd, addr);
+	src_ptl = pte_lockptr(src_mm, src_pmd);
+	spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING);
+	orig_dst_pte = dst_pte;
+	orig_src_pte = src_pte;
+
+	arch_enter_lazy_mmu_mode();
+
+	do {
+		/* Make sure that we are not holding the looks too long. */
+		if (progress >= 32) {
+			progress = 0;
+			if (need_resched() || spin_needbreak(src_ptl) ||
+			    spin_needbreak(dst_ptl))
+				break;
+		}
+
+		if (pte_none(*src_pte) && pte_none(*dst_pte)) {
+			progress++;
+			continue;
+		} else if (pte_none(*src_pte)) {
+			unsigned long raddr = addr;
+			int ret;
+
+			ret = zap_one_pte(tlb, dst_vma, dst_pte, &raddr,
+					  &force_flush, rss, NULL);
+			pte_clear(dst_mm, addr, dst_pte);
+
+			progress += 8;
+			if (ret)
+				break;
+
+			continue;
+		}
+
+		entry.val = dup_one_pte(dst_mm, dst_vma, src_mm, src_vma,
+					tlb, dst_pte, src_pte, addr,
+					&force_flush, rss);
+
+		if (entry.val)
+			break;
+		progress += 8;
+	} while (dst_pte++, src_pte++, addr += PAGE_SIZE, addr != end);
+
+	arch_leave_lazy_mmu_mode();
+	spin_unlock(src_ptl);
+	pte_unmap(orig_src_pte);
+	add_mm_rss_vec(dst_mm, rss);
+
+	/* Do the TLB flush before unlocking the destination ptl */
+	if (force_flush)
+		tlb_flush_mmu_tlbonly(tlb);
+	pte_unmap_unlock(orig_dst_pte, dst_ptl);
+
+	/* Sometimes we have to free all the batch memory as well. */
+	if (force_flush) {
+		force_flush = 0;
+		tlb_flush_mmu_free(tlb);
+	}
+
+	cond_resched();
+	if (entry.val) {
+		if (add_swap_count_continuation(entry, GFP_KERNEL) < 0)
+			return -ENOMEM;
+		progress = 0;
+	}
+	if (addr != end)
+		goto again;
+
+	return 0;
+}
+
+static inline int
+dup_pmd_range(struct mm_struct *dst_mm, struct vm_area_struct *dst_vma,
+	      struct mm_struct *src_mm, struct vm_area_struct *src_vma,
+	      struct mmu_gather *tlb, pud_t *dst_pud, pud_t *src_pud,
+	      unsigned long addr, unsigned long end)
+{
+	pmd_t *dst_pmd, *src_pmd;
+	unsigned long next;
+
+	dst_pmd = pmd_alloc(dst_mm, dst_pud, addr);
+	if (!dst_pmd)
+		return -ENOMEM;
+	src_pmd = pmd_offset(src_pud, addr);
+	do {
+		next = pmd_addr_end(addr, end);
+
+		if (pmd_none_or_clear_bad(src_pmd) &&
+		    pmd_none_or_clear_bad(dst_pmd)) {
+			continue;
+		} else if (pmd_none_or_clear_bad(src_pmd)) {
+			/* src unmapped, but dst not --> free dst too */
+			zap_pte_range(tlb, dst_vma, dst_pmd, addr, next, NULL);
+			free_pte_range(tlb, dst_pmd, addr);
+
+			continue;
+		} else if (pmd_trans_huge(*src_pmd) || pmd_devmap(*src_pmd)) {
+			int err;
+
+			VM_BUG_ON(next-addr != HPAGE_PMD_SIZE);
+
+			/*
+			 * We may need to unmap the content of the destination
+			 * page table first. So check this here, because
+			 * inside dup_huge_pmd we cannot do it anymore.
+			 */
+			if (unlikely(!pmd_trans_huge(*dst_pmd) &&
+				     !pmd_devmap(*dst_pmd) &&
+				     !pmd_none_or_clear_bad(dst_pmd))) {
+				zap_pte_range(tlb, dst_vma, dst_pmd, addr, next,
+					      NULL);
+				free_pte_range(tlb, dst_pmd, addr);
+			}
+
+			err = dup_huge_pmd(dst_mm, dst_vma, src_mm, src_vma,
+					   tlb, dst_pmd, src_pmd, addr);
+
+			if (err == -ENOMEM)
+				return -ENOMEM;
+			if (!err)
+				continue;
+			/* explicit fall through */
+
+		}
+
+		if (unlikely(dup_pte_range(dst_mm, dst_vma, src_mm, src_vma,
+					   tlb, dst_pmd, src_pmd, addr, next)))
+			return -ENOMEM;
+	} while (dst_pmd++, src_pmd++, addr = next, addr != end);
+
+	return 0;
+}
+
+static inline int
+dup_pud_range(struct mm_struct *dst_mm, struct vm_area_struct *dst_vma,
+	      struct mm_struct *src_mm, struct vm_area_struct *src_vma,
+	      struct mmu_gather *tlb, pgd_t *dst_pgd, pgd_t *src_pgd,
+	      unsigned long addr, unsigned long end)
+{
+	pud_t *dst_pud, *src_pud;
+	unsigned long next;
+
+	dst_pud = pud_alloc(dst_mm, dst_pgd, addr);
+	if (!dst_pud)
+		return -ENOMEM;
+	src_pud = pud_offset(src_pgd, addr);
+	do {
+		next = pud_addr_end(addr, end);
+		if (pud_none_or_clear_bad(src_pud) &&
+		    pud_none_or_clear_bad(dst_pud)) {
+			continue;
+		} else if (pud_none_or_clear_bad(src_pud)) {
+			/* src is unmapped, but dst not --> free dst too */
+			zap_pmd_range(tlb, dst_vma, dst_pud, addr, next, NULL);
+			free_pmd_range(tlb, dst_pud, addr, next, addr, next);
+
+			continue;
+		}
+
+		if (unlikely(dup_pmd_range(dst_mm, dst_vma, src_mm, src_vma,
+					   tlb, dst_pud, src_pud, addr, next)))
+			return -ENOMEM;
+	} while (dst_pud++, src_pud++, addr = next, addr != end);
+
+	return 0;
+}
+
+/**
+ * One-to-one duplicate the page table entries of one memory map to another
+ * memory map. After this function, the destination memory map will have the
+ * exact same page table entries for the specified region as the source memory
+ * map. Preexisting mappings in the destination memory map will be removed
+ * before they are overwritten with the ones from the source memory map if they
+ * differ.
+ *
+ * The difference between this function and @copy_page_range is that
+ * 'copy_page_range' will copy the underlying memory pages if necessary (e.g.
+ * for anonymous memory) with the help of copy-on-write while 'dup_page_range'
+ * will only duplicate the page table entries and hence allow both memory maps
+ * to actually share the referenced memory pages.
+ **/
+int dup_page_range(struct mm_struct *dst_mm, struct vm_area_struct *dst_vma,
+		   struct mm_struct *src_mm, struct vm_area_struct *src_vma)
+{
+	pgd_t *dst_pgd, *src_pgd;
+	struct mmu_gather tlb;
+	unsigned long next;
+	unsigned long addr = src_vma->vm_start;
+	unsigned long end = src_vma->vm_end;
+	unsigned long mmu_start = dst_vma->vm_start;
+	unsigned long mmu_end = dst_vma->vm_end;
+	int ret = 0;
+
+	if (is_vm_hugetlb_page(src_vma))
+		return dup_hugetlb_page_range(dst_mm, dst_vma, src_mm,
+					      src_vma);
+
+	tlb_gather_mmu(&tlb, dst_mm, mmu_start, mmu_end);
+	mmu_notifier_invalidate_range_start(dst_mm, mmu_start, mmu_end);
+
+	dst_pgd = pgd_offset(dst_mm, addr);
+	src_pgd = pgd_offset(src_mm, addr);
+	do {
+		next = pgd_addr_end(addr, end);
+		if (pgd_none_or_clear_bad(src_pgd) &&
+		    pgd_none_or_clear_bad(dst_pgd)) {
+			continue;
+		} else if (pgd_none_or_clear_bad(src_pgd)) {
+			/* src is unmapped, but dst not --> free dst too */
+			zap_pud_range(&tlb, dst_vma, dst_pgd, addr, next, NULL);
+			free_pud_range(&tlb, dst_pgd, addr, next, addr, next);
+
+			continue;
+		}
+
+		if (unlikely(dup_pud_range(dst_mm, dst_vma, src_mm, src_vma,
+					   &tlb, dst_pgd, src_pgd, addr,
+					   next))) {
+			ret = -ENOMEM;
+			break;
+		}
+	} while (dst_pgd++, src_pgd++, addr = next, addr != end);
+
+	mmu_notifier_invalidate_range_end(dst_mm, mmu_start, mmu_end);
+	tlb_finish_mmu(&tlb, mmu_start, mmu_end);
+
+	return ret;
+}
+
 pte_t *__get_locked_pte(struct mm_struct *mm, unsigned long addr,
 			spinlock_t **ptl)
 {
-- 
2.12.0

--
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From - Thu Nov 08 21:39:43 2018
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From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: [RFC PATCH 11/13] mm/vas: Introduce VAS segments - shareable address space regions
Date: Mon, 13 Mar 2017 15:14:13 -0700
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To: Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	Vineet Gupta <vgupta@synopsys.com>,
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	Richard Kuo <rkuo@codeaurora.org>,
	Tony Luck <tony.luck@intel.com>,
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	James Hogan <james.hogan@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
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	Michael Ellerman <mpe@ellerman.id.au>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
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	"David S. Miller" <davem@dave
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.aio.general/4945>

VAS segments are an extension to first class virtual address spaces that
can be used to share specific memory regions between multiple first class
virtual address spaces. VAS segments have a specific size and position in a
virtual address space and can thereby be used to share in-memory pointer
based data structures between multiple address spaces as well as other
in-memory data without the need to represent them in mmap-able files or
use shmem.

Similar to first class virtual address spaces, VAS segments must be created
and destroyed explicitly by a user. The system will never automatically
destroy or create a virtual segment. Via attaching a VAS segment to a first
class virtual address space, the memory that is contained in the VAS
segment can be accessed and changed.

Signed-off-by: Till Smejkal <till.smejkal@gmail.com>
Signed-off-by: Marco Benatto <marco.antonio.780@gmail.com>
---
 arch/x86/entry/syscalls/syscall_32.tbl |    7 +
 arch/x86/entry/syscalls/syscall_64.tbl |    7 +
 include/linux/syscalls.h               |   10 +
 include/linux/vas.h                    |  114 +++
 include/linux/vas_types.h              |   91 ++-
 include/uapi/asm-generic/unistd.h      |   16 +-
 include/uapi/linux/vas.h               |   12 +
 kernel/sys_ni.c                        |    7 +
 mm/vas.c                               | 1234 ++++++++++++++++++++++++++++++--
 9 files changed, 1451 insertions(+), 47 deletions(-)

diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index 8c553eef8c44..a4f91d14a856 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -398,3 +398,10 @@
 389	i386	active_vas		sys_active_vas
 390	i386	vas_getattr		sys_vas_getattr
 391	i386	vas_setattr		sys_vas_setattr
+392	i386	vas_seg_create		sys_vas_seg_create
+393	i386	vas_seg_delete		sys_vas_seg_delete
+394	i386	vas_seg_find		sys_vas_seg_find
+395	i386	vas_seg_attach		sys_vas_seg_attach
+396	i386	vas_seg_detach		sys_vas_seg_detach
+397	i386	vas_seg_getattr		sys_vas_seg_getattr
+398	i386	vas_seg_setattr		sys_vas_seg_setattr
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 72f1f0495710..a0f9503c3d28 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -347,6 +347,13 @@
 338	common	active_vas		sys_active_vas
 339	common	vas_getattr		sys_vas_getattr
 340	common	vas_setattr		sys_vas_setattr
+341	common	vas_seg_create		sys_vas_seg_create
+342	common	vas_seg_delete		sys_vas_seg_delete
+343	common	vas_seg_find		sys_vas_seg_find
+344	common	vas_seg_attach		sys_vas_seg_attach
+345	common	vas_seg_detach		sys_vas_seg_detach
+346	common	vas_seg_getattr		sys_vas_seg_getattr
+347	common	vas_seg_setattr		sys_vas_seg_setattr
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index fdea27d37c96..7380dcdc4bc1 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -66,6 +66,7 @@ struct perf_event_attr;
 struct file_handle;
 struct sigaltstack;
 struct vas_attr;
+struct vas_seg_attr;
 union bpf_attr;
 
 #include <linux/types.h>
@@ -914,4 +915,13 @@ asmlinkage long sys_active_vas(void);
 asmlinkage long sys_vas_getattr(int vid, struct vas_attr __user *attr);
 asmlinkage long sys_vas_setattr(int vid, struct vas_attr __user *attr);
 
+asmlinkage long sys_vas_seg_create(const char __user *name, unsigned long start,
+				   unsigned long end, umode_t mode);
+asmlinkage long sys_vas_seg_delete(int sid);
+asmlinkage long sys_vas_seg_find(const char __user *name);
+asmlinkage long sys_vas_seg_attach(int vid, int sid, int type);
+asmlinkage long sys_vas_seg_detach(int vid, int sid);
+asmlinkage long sys_vas_seg_getattr(int sid, struct vas_seg_attr __user *attr);
+asmlinkage long sys_vas_seg_setattr(int sid, struct vas_seg_attr __user *attr);
+
 #endif
diff --git a/include/linux/vas.h b/include/linux/vas.h
index 6a72e42f96d2..376b9fa1ee27 100644
--- a/include/linux/vas.h
+++ b/include/linux/vas.h
@@ -138,6 +138,120 @@ extern int vas_setattr(int vid, struct vas_attr *attr);
 
 
 /***
+ * Management of VAS segments
+ ***/
+
+/**
+ * Lock and unlock helper for VAS segments.
+ **/
+#define vas_seg_lock(seg) mutex_lock(&(seg)->mtx)
+#define vas_seg_unlock(seg) mutex_unlock(&(seg)->mtx)
+
+/**
+ * Create a new VAS segment.
+ *
+ * @param[in] name:		The name of the new VAS segment.
+ * @param[in] start:		The address where the VAS segment begins.
+ * @param[in] end:		The address where the VAS segment ends.
+ * @param[in] mode:		The access rights for the VAS segment.
+ *
+ * @returns:			The VAS segment ID on success, -ERRNO otherwise.
+ **/
+extern int vas_seg_create(const char *name, unsigned long start,
+			  unsigned long end, umode_t mode);
+
+/**
+ * Get a pointer to a VAS segment data structure.
+ *
+ * @param[in] sid:		The ID of the VAS segment whose data structure
+ *				should be returned.
+ *
+ * @returns:			The pointer to the VAS segment data structure
+ *				on success, or NULL otherwise.
+ **/
+extern struct vas_seg *vas_seg_get(int sid);
+
+/**
+ * Return a pointer to a VAS segment data structure again.
+ *
+ * @param[in] seg:		The pointer to the VAS segment data structure
+ *				that should be returned.
+ **/
+extern void vas_seg_put(struct vas_seg *seg);
+
+/**
+ * Get ID of the VAS segment belonging to a given name.
+ *
+ * @param[in] name:		The name of the VAS segment for which the ID
+ *				should be returned.
+ *
+ * @returns:			The VAS segment ID on success, -ERRNO
+ *				otherwise.
+ **/
+extern int vas_seg_find(const char *name);
+
+/**
+ * Delete the given VAS segment again.
+ *
+ * @param[in] id:		The ID of the VAS segment which should be
+ *				deleted.
+ *
+ * @returns:			0 on success, -ERRNO otherwise.
+ **/
+extern int vas_seg_delete(int id);
+
+/**
+ * Attach a VAS segment to a VAS.
+ *
+ * @param[in] vid:		The ID of the VAS to which the VAS segment
+ *				should be attached.
+ * @param[in] sid:		The ID of the VAS segment which should be
+ *				attached.
+ * @param[in] type:		The type how the VAS segment should be
+ *				attached.
+ *
+ * @returns:			0 on success, -ERRNO otherwise.
+ **/
+extern int vas_seg_attach(int vid, int sid, int type);
+
+/**
+ * Detach a VAS segment from a VAS.
+ *
+ * @param[in] vid:		The ID of the VAS from which the VAS segment
+ *				should be detached.
+ * @param[in] sid:		The ID of the VAS segment which should be
+ *				detached.
+ *
+ * @returns:			0 on success, -ERRNO otherwise.
+ **/
+extern int vas_seg_detach(int vid, int sid);
+
+/**
+ * Get attributes of a VAS segment.
+ *
+ * @param[in] sid:		The ID of the VAS segment for which the
+ *				attributes should be returned.
+ * @param[out] attr:		The pointer to the struct where the attributes
+ *				should be saved.
+ *
+ * @returns:			0 on success, -ERRNO otherwise.
+ **/
+extern int vas_seg_getattr(int sid, struct vas_seg_attr *attr);
+
+/**
+ * Set attributes of a VAS segment.
+ *
+ * @param[in] sid:		The ID of the VAS segment for which the
+ *				attributes should be updated.
+ * @param[in] attr:		The pointer to the struct containing the new
+ *				attributes.
+ *
+ * @returns:			0 on success, -ERRNO otherwise.
+ **/
+extern int vas_seg_setattr(int sid, struct vas_seg_attr *attr);
+
+
+/***
  * Management of the VAS subsystem
  ***/
 
diff --git a/include/linux/vas_types.h b/include/linux/vas_types.h
index f06bfa9ef729..a5291a18ea07 100644
--- a/include/linux/vas_types.h
+++ b/include/linux/vas_types.h
@@ -24,8 +24,8 @@ struct task_struct;
  * The struct representing a Virtual Address Space (VAS).
  *
  * This data structure contains all the necessary information of a VAS such as
- * its name, ID. It also contains access rights and other management
- * information.
+ * its name, ID, as well as the list of all the VAS segments which are attached
+ * to it. It also contains access rights and other management information.
  **/
 struct vas {
 	struct kobject kobj;		/* < the internal kobject that we use *
@@ -38,7 +38,8 @@ struct vas {
 	struct mutex mtx;		/* < lock for parallel access.        */
 
 	struct mm_struct *mm;		/* < a partial memory map containing  *
-					 *   all mappings of this VAS.        */
+					 *   all mappings of this VAS and all *
+					 *   of its attached VAS segments.    */
 
 	struct list_head link;		/* < the link in the global VAS list. */
 	struct rcu_head rcu;		/* < the RCU helper used for          *
@@ -54,6 +55,11 @@ struct vas {
 					 *   of the current sharing state of  *
 					 *   the VAS.                         */
 
+	struct list_head segments;	/* < the list of attached VAS         *
+					 *   segments.                        */
+	u32 nr_segments;		/* < the number of VAS segments       *
+					 *   attached to this VAS.            */
+
 	umode_t mode;			/* < the access rights to this VAS.   */
 	kuid_t uid;			/* < the UID of the owning user of    *
 					 *   this VAS.                        */
@@ -85,4 +91,83 @@ struct att_vas {
 	int type;			/* < the type of attaching (RO/RW).   */
 };
 
+/**
+ * The struct representing a VAS segment.
+ *
+ * A VAS segment is a region in memory. Accordingly, it is very similar to a
+ * vm_area. However, instead of a vm_area it can only represent a memory region
+ * and not a file and also knows where it is mapped. In addition VAS segments
+ * also have an ID, a name, access rights and a lock managing the way it can be
+ * shared between multiple VAS.
+ **/
+struct vas_seg {
+	struct kobject kobj;		/* < the internal kobject that we use *
+					 *   for reference counting and sysfs *
+					 *   handling.                        */
+
+	int id;				/* < ID                               */
+	char name[VAS_MAX_NAME_LENGTH];	/* < name                             */
+
+	struct mutex mtx;		/* < lock for parallel access.        */
+
+	unsigned long start;		/* < the virtual address where the    *
+					 *   VAS segment starts.              */
+	unsigned long end;		/* < the virtual address where the    *
+					 *   VAS segment ends.                */
+	unsigned long length;		/* < the size of the VAS segment in   *
+					 *   bytes.                           */
+
+	struct mm_struct *mm;		/* < a partial memory map containing  *
+					 *   all the mappings for this VAS    *
+					 *   segment.                         */
+
+	struct list_head link;		/* < the link in the global VAS       *
+					 *   segment list.                    */
+	struct rcu_head rcu;		/* < the RCU helper used for          *
+					 *   asynchronous VAS segment         *
+					 *   deletion.                        */
+
+	u16 refcount;			/* < how often is the VAS segment     *
+					 *   attached.                        */
+	struct list_head attaches;	/* < the list of VASes which have     *
+					 *   this VAS segment attached.       */
+
+	spinlock_t share_lock;		/* < lock for protecting sharing      *
+					 *   state.                           */
+	u32 sharing;			/* < the variable used to keep track  *
+					 *   of the current sharing state of  *
+					 *   the VAS segment.                 */
+
+	umode_t mode;			/* < the access rights to this VAS    *
+					 *   segment.                         */
+	kuid_t uid;			/* < the UID of the owning user of    *
+					 *   this VAS segment.                */
+	kgid_t gid;			/* < the GID of the owning group of   *
+					 *   this VAS segment.                */
+};
+
+/**
+ * The struct representing a VAS segment being attached to a VAS.
+ *
+ * Since a VAS segment can be attached to a multiple VAS this data structure is
+ * necessary. It forms the connection between the VAS and the VAS segment
+ * itself.
+ **/
+struct att_vas_seg {
+	struct vas_seg *seg;            /* < the reference to the actual VAS  *
+					 *   segment containing all the       *
+					 *   information.                     */
+
+	struct vas *vas;		/* < the reference to the VAS to      *
+					 *   which the VAS segment is         *
+					 *   attached to.                     */
+
+	struct list_head vas_link;	/* < the link in the list managed     *
+					 *   inside the VAS.                  */
+	struct list_head seg_link;	/* < the link in the list managed     *
+					 *   inside the VAS segment.          */
+
+	int type;			/* < the type of attaching (RO/RW).   */
+};
+
 #endif
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 35df7d40a443..4014b4bd2f18 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -748,9 +748,23 @@ __SYSCALL(__NR_active_vas, sys_active_vas)
 __SYSCALL(__NR_vas_getattr, sys_vas_getattr)
 #define __NR_vas_setattr 299
 __SYSCALL(__NR_vas_setattr, sys_vas_setattr)
+#define __NR_vas_seg_create 300
+__SYSCALL(__NR_vas_seg_create, sys_vas_seg_create)
+#define __NR_vas_seg_delete 301
+__SYSCALL(__NR_vas_seg_delete, sys_vas_seg_delete)
+#define __NR_vas_seg_find 302
+__SYSCALL(__NR_vas_seg_find, sys_vas_seg_find)
+#define __NR_vas_seg_attach 303
+__SYSCALL(__NR_vas_seg_attach, sys_vas_seg_attach)
+#define __NR_vas_seg_detach 304
+__SYSCALL(__NR_vas_seg_detach, sys_vas_seg_detach)
+#define __NR_vas_seg_getattr 305
+__SYSCALL(__NR_vas_seg_getattr, sys_vas_seg_getattr)
+#define __NR_vas_seg_setattr 306
+__SYSCALL(__NR_vas_seg_setattr, sys_vas_seg_setattr)
 
 #undef __NR_syscalls
-#define __NR_syscalls 300
+#define __NR_syscalls 307
 
 /*
  * All syscalls below here should go away really,
diff --git a/include/uapi/linux/vas.h b/include/uapi/linux/vas.h
index 02f70f88bdcb..a8858b013a44 100644
--- a/include/uapi/linux/vas.h
+++ b/include/uapi/linux/vas.h
@@ -13,4 +13,16 @@ struct vas_attr {
 	__kernel_gid_t group;		/* < the owning group of the VAS.     */
 };
 
+/**
+ * The struct containing attributes of a VAS segment.
+ **/
+struct vas_seg_attr {
+	__kernel_mode_t mode;		/* < the access rights to the VAS     *
+					 *   segment.                         */
+	__kernel_uid_t user;		/* < the owning user of the VAS       *
+					 *   segment.                         */
+	__kernel_gid_t group;		/* < the owning group of the VAS      *
+					 *   segment.                         */
+};
+
 #endif
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index f6f83c5ec1a1..659fe96afcfa 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -269,3 +269,10 @@ cond_syscall(sys_vas_switch);
 cond_syscall(sys_active_vas);
 cond_syscall(sys_vas_getattr);
 cond_syscall(sys_vas_setattr);
+cond_syscall(sys_segment_create);
+cond_syscall(sys_segment_delete);
+cond_syscall(sys_segment_find);
+cond_syscall(sys_segment_attach);
+cond_syscall(sys_segment_detach);
+cond_syscall(sys_segment_getattr);
+cond_syscall(sys_segment_setattr);
diff --git a/mm/vas.c b/mm/vas.c
index 447d61e1da79..345b023c21aa 100644
--- a/mm/vas.c
+++ b/mm/vas.c
@@ -61,7 +61,7 @@
 #define VAS_MAX_ID INT_MAX
 
 /**
- * Masks and bits to implement sharing of VAS.
+ * Masks and bits to implement sharing of VAS and VAS segments.
  **/
 #define VAS_SHARE_READABLE (1 << 0)
 #define VAS_SHARE_WRITABLE (1 << 16)
@@ -194,6 +194,8 @@ static void __dump_memory_map(const char *title, struct mm_struct *mm)
 static struct kmem_cache *vas_cachep;
 static struct kmem_cache *att_vas_cachep;
 static struct kmem_cache *vas_context_cachep;
+static struct kmem_cache *seg_cachep;
+static struct kmem_cache *att_seg_cachep;
 
 /**
  * Global management data structures and their associated locks.
@@ -201,16 +203,21 @@ static struct kmem_cache *vas_context_cachep;
 static struct idr vases;
 static spinlock_t vases_lock;
 
+static struct idr vas_segs;
+static spinlock_t vas_segs_lock;
+
 /**
  * The place holder variables that are used to identify to-be-deleted items in
  * our global management data structures.
  **/
 static struct vas *INVALID_VAS;
+static struct vas_seg *INVALID_VAS_SEG;
 
 /**
  * Kernel 'ksets' where all objects will be managed.
  **/
 static struct kset *vases_kset;
+static struct kset *vas_segs_kset;
 
 
 /***
@@ -273,6 +280,40 @@ static inline void __delete_vas_context(struct vas_context *ctx)
 	kmem_cache_free(vas_context_cachep, ctx);
 }
 
+static inline struct vas_seg *__new_vas_seg(void)
+{
+	return kmem_cache_zalloc(seg_cachep, GFP_KERNEL);
+}
+
+static inline void __delete_vas_seg(struct vas_seg *seg)
+{
+	WARN_ON(seg->refcount != 0);
+
+	mutex_destroy(&seg->mtx);
+
+	if (seg->mm)
+		mmput_async(seg->mm);
+	kmem_cache_free(seg_cachep, seg);
+}
+
+static inline void __delete_vas_seg_rcu(struct rcu_head *rp)
+{
+	struct vas_seg *seg = container_of(rp, struct vas_seg, rcu);
+
+	__delete_vas_seg(seg);
+}
+
+static inline struct att_vas_seg *__new_att_vas_seg(void)
+{
+	return kmem_cache_zalloc(att_seg_cachep, GFP_ATOMIC);
+}
+
+static inline void __delete_att_vas_seg(struct att_vas_seg *aseg)
+{
+	kmem_cache_free(att_seg_cachep, aseg);
+}
+
+
 /***
  * Kobject management of data structures
  ***/
@@ -418,6 +459,161 @@ static struct kobj_type vas_ktype = {
 	.default_attrs = vas_default_attr,
 };
 
+/**
+ * Correctly get and put VAS segments.
+ **/
+static inline struct vas_seg *__vas_seg_get(struct vas_seg *seg)
+{
+	return container_of(kobject_get(&seg->kobj), struct vas_seg, kobj);
+}
+
+static inline void __vas_seg_put(struct vas_seg *seg)
+{
+	kobject_put(&seg->kobj);
+}
+
+/**
+ * The sysfs structure we need to handle attributes of a VAS segment.
+ **/
+struct vas_seg_sysfs_attr {
+	struct attribute attr;
+	ssize_t (*show)(struct vas_seg *seg, struct vas_seg_sysfs_attr *ssattr,
+			char *buf);
+	ssize_t (*store)(struct vas_seg *seg, struct vas_seg_sysfs_attr *ssattr,
+			 const char *buf, ssize_t count);
+};
+
+#define VAS_SEG_SYSFS_ATTR(NAME, MODE, SHOW, STORE)			\
+static struct vas_seg_sysfs_attr vas_seg_sysfs_attr_##NAME =		\
+	__ATTR(NAME, MODE, SHOW, STORE)
+
+/**
+ * Functions for all the sysfs operations for VAS segments.
+ **/
+static ssize_t __vas_seg_sysfs_attr_show(struct kobject *kobj,
+					 struct attribute *attr,
+					 char *buf)
+{
+	struct vas_seg *seg;
+	struct vas_seg_sysfs_attr *ssattr;
+
+	seg = container_of(kobj, struct vas_seg, kobj);
+	ssattr = container_of(attr, struct vas_seg_sysfs_attr, attr);
+
+	if (!ssattr->show)
+		return -EIO;
+
+	return ssattr->show(seg, ssattr, buf);
+}
+
+static ssize_t __vas_seg_sysfs_attr_store(struct kobject *kobj,
+					  struct attribute *attr,
+					  const char *buf, size_t count)
+{
+	struct vas_seg *seg;
+	struct vas_seg_sysfs_attr *ssattr;
+
+	seg = container_of(kobj, struct vas_seg, kobj);
+	ssattr = container_of(attr, struct vas_seg_sysfs_attr, attr);
+
+	if (!ssattr->store)
+		return -EIO;
+
+	return ssattr->store(seg, ssattr, buf, count);
+}
+
+/**
+ * The sysfs operations structure for a VAS segment.
+ **/
+static const struct sysfs_ops vas_seg_sysfs_ops = {
+	.show = __vas_seg_sysfs_attr_show,
+	.store = __vas_seg_sysfs_attr_store,
+};
+
+/**
+ * Default attributes of a VAS segment.
+ **/
+static ssize_t __show_vas_seg_name(struct vas_seg *seg,
+				   struct vas_seg_sysfs_attr *ssattr,
+				   char *buf)
+{
+	return scnprintf(buf, PAGE_SIZE, "%s", seg->name);
+}
+VAS_SEG_SYSFS_ATTR(name, 0444, __show_vas_seg_name, NULL);
+
+static ssize_t __show_vas_seg_mode(struct vas_seg *seg,
+				   struct vas_seg_sysfs_attr *ssattr,
+				   char *buf)
+{
+	return scnprintf(buf, PAGE_SIZE, "%#03o", seg->mode);
+}
+VAS_SEG_SYSFS_ATTR(mode, 0444, __show_vas_seg_mode, NULL);
+
+static ssize_t __show_vas_seg_user(struct vas_seg *seg,
+				   struct vas_seg_sysfs_attr *ssattr,
+				   char *buf)
+{
+	struct user_namespace *ns = current_user_ns();
+
+	return scnprintf(buf, PAGE_SIZE, "%d", from_kuid(ns, seg->uid));
+}
+VAS_SEG_SYSFS_ATTR(user, 0444, __show_vas_seg_user, NULL);
+
+static ssize_t __show_vas_seg_group(struct vas_seg *seg,
+				    struct vas_seg_sysfs_attr *ssattr,
+				    char *buf)
+{
+	struct user_namespace *ns = current_user_ns();
+
+	return scnprintf(buf, PAGE_SIZE, "%d", from_kgid(ns, seg->gid));
+}
+VAS_SEG_SYSFS_ATTR(group, 0444, __show_vas_seg_group, NULL);
+
+static ssize_t __show_vas_seg_region(struct vas_seg *seg,
+				     struct vas_seg_sysfs_attr *ssattr,
+				     char *buf)
+{
+	return scnprintf(buf, PAGE_SIZE, "%lx-%lx", seg->start, seg->end);
+}
+VAS_SEG_SYSFS_ATTR(region, 0444, __show_vas_seg_region, NULL);
+
+static struct attribute *vas_seg_default_attr[] = {
+	&vas_seg_sysfs_attr_name.attr,
+	&vas_seg_sysfs_attr_mode.attr,
+	&vas_seg_sysfs_attr_user.attr,
+	&vas_seg_sysfs_attr_group.attr,
+	&vas_seg_sysfs_attr_region.attr,
+	NULL
+};
+
+/**
+ * Function to release the VAS segment after its kobject is gone.
+ **/
+static void __vas_seg_release(struct kobject *kobj)
+{
+	struct vas_seg *seg = container_of(kobj, struct vas_seg, kobj);
+
+	/* Give up the ID in the IDR that was occupied by this VAS segment. */
+	spin_lock(&vas_segs_lock);
+	idr_remove(&vas_segs, seg->id);
+	spin_unlock(&vas_segs_lock);
+
+	/*
+	 * Wait a full RCU grace period before actually deleting the VAS segment
+	 * data structure since we haven't done it earlier.
+	 */
+	call_rcu(&seg->rcu, __delete_vas_seg_rcu);
+}
+
+/**
+ * The ktype data structure representing a VAS segment.
+ **/
+static struct kobj_type vas_seg_ktype = {
+	.sysfs_ops = &vas_seg_sysfs_ops,
+	.release = __vas_seg_release,
+	.default_attrs = vas_seg_default_attr,
+};
+
 
 /***
  * Internally visible functions
@@ -526,8 +722,99 @@ static inline struct vas *vas_lookup_by_name(const char *name)
 	return vas;
 }
 
+/**
+ * Working with the global VAS segments list.
+ **/
+static inline void vas_seg_remove(struct vas_seg *seg)
+{
+	spin_lock(&vas_segs_lock);
+
+	/*
+	 * We only put a to-be-deleted place holder in the IDR at this point.
+	 * See @vas_remove for more details.
+	 */
+	idr_replace(&vas_segs, INVALID_VAS_SEG, seg->id);
+	spin_unlock(&vas_segs_lock);
+
+	/* No need to wait for grace period. See @vas_remove why. */
+	__vas_seg_put(seg);
+}
+
+static inline int vas_seg_insert(struct vas_seg *seg)
+{
+	int ret;
+
+	/* Add the VAS segment in the IDR cache. */
+	spin_lock(&vas_segs_lock);
+
+	ret = idr_alloc(&vas_segs, seg, 1, VAS_MAX_ID, GFP_KERNEL);
+
+	spin_unlock(&vas_segs_lock);
+
+	if (ret < 0) {
+		__delete_vas_seg(seg);
+		return ret;
+	}
+
+	/* Add the remaining data to the VAS segment's data structure. */
+	seg->id = ret;
+	seg->kobj.kset = vas_segs_kset;
+
+	/* Initialize the kobject and add it to the sysfs. */
+	ret = kobject_init_and_add(&seg->kobj, &vas_seg_ktype, NULL,
+				   "%d", seg->id);
+	if (ret != 0) {
+		vas_seg_remove(seg);
+		return ret;
+	}
+
+	kobject_uevent(&seg->kobj, KOBJ_ADD);
+
+	return 0;
+}
+
+static inline struct vas_seg *vas_seg_lookup(int id)
+{
+	struct vas_seg *seg;
+
+	rcu_read_lock();
+
+	seg = idr_find(&vas_segs, id);
+	if (seg == INVALID_VAS_SEG)
+		seg = NULL;
+	if (seg)
+		seg = __vas_seg_get(seg);
+
+	rcu_read_unlock();
+
+	return seg;
+}
+
+static inline struct vas_seg *vas_seg_lookup_by_name(const char *name)
+{
+	struct vas_seg *seg;
+	int id;
+
+	rcu_read_lock();
+
+	idr_for_each_entry(&vas_segs, seg, id) {
+		if (seg == INVALID_VAS_SEG)
+			continue;
+
+		if (strcmp(seg->name, name) == 0)
+			break;
+	}
+
+	if (seg)
+		seg = __vas_seg_get(seg);
+
+	rcu_read_unlock();
+
+	return seg;
+}
+
  /**
-  * Management of the sharing of VAS.
+  * Management of the sharing of VAS and VAS segments.
   **/
 static inline int vas_take_share(int type, struct vas *vas)
 {
@@ -562,6 +849,39 @@ static inline void vas_put_share(int type, struct vas *vas)
 	spin_unlock(&vas->share_lock);
 }
 
+static inline int vas_seg_take_share(int type, struct vas_seg *seg)
+{
+	int ret;
+
+	spin_lock(&seg->share_lock);
+	if (type & MAY_WRITE) {
+		if ((seg->sharing & VAS_SHARE_READ_WRITE_MASK) == 0) {
+			seg->sharing += VAS_SHARE_WRITABLE;
+			ret = 1;
+		} else
+			ret = 0;
+	} else {
+		if ((seg->sharing & VAS_SHARE_WRITE_MASK) == 0) {
+			seg->sharing += VAS_SHARE_READABLE;
+			ret = 1;
+		} else
+			ret = 0;
+	}
+	spin_unlock(&seg->share_lock);
+
+	return ret;
+}
+
+static inline void vas_seg_put_share(int type, struct vas_seg *seg)
+{
+	spin_lock(&seg->share_lock);
+	if (type & MAY_WRITE)
+		seg->sharing -= VAS_SHARE_WRITABLE;
+	else
+		seg->sharing -= VAS_SHARE_READABLE;
+	spin_unlock(&seg->share_lock);
+}
+
 /**
  * Management of the memory maps.
  **/
@@ -609,6 +929,59 @@ static int init_att_vas_mm(struct att_vas *avas, struct task_struct *owner)
 	return 0;
 }
 
+static int init_vas_seg_mm(struct vas_seg *seg)
+{
+	struct mm_struct *mm;
+	unsigned long map_flags, page_prot_flags;
+	vm_flags_t vm_flags;
+	unsigned long map_addr;
+	int ret;
+
+	mm = mm_alloc();
+	if (!mm)
+		return -ENOMEM;
+
+	mm = mm_setup(mm);
+	if (!mm)
+		return -ENOMEM;
+
+	arch_pick_mmap_layout(mm);
+
+	map_flags = MAP_ANONYMOUS | MAP_FIXED;
+	page_prot_flags = PROT_READ | PROT_WRITE;
+	vm_flags = calc_vm_prot_bits(page_prot_flags, 0) |
+		calc_vm_flag_bits(map_flags) | mm->def_flags |
+		VM_DONTEXPAND | VM_DONTCOPY;
+
+	/* Find the possible mapping address for the VAS segment. */
+	map_addr = get_unmapped_area(mm, NULL, seg->start, seg->length,
+				     0, map_flags);
+	if (map_addr != seg->start) {
+		ret = -EFAULT;
+		goto out_free;
+	}
+
+	/* Insert the mapping into the mm_struct of the VAS segment. */
+	map_addr = mmap_region(mm, NULL, seg->start, seg->length,
+			       vm_flags, 0);
+	if (map_addr != seg->start) {
+		ret = -EFAULT;
+		goto out_free;
+	}
+
+	/* Populate the VAS segments memory region. */
+	mm_populate(mm, seg->start, seg->length);
+
+	/* The mm_struct is properly setup. We are done here. */
+	seg->mm = mm;
+
+	return 0;
+
+out_free:
+	mmput(mm);
+	return ret;
+}
+
 /**
  * Lookup the corresponding vm_area in the referenced memory map.
  *
@@ -1126,61 +1499,200 @@ static int task_unmerge(struct att_vas *avas, struct task_struct *tsk)
 }
 
 /**
- * Attach a VAS to a task -- update internal information ONLY
+ * Merge a VAS segment's memory map into a VAS memory map.
  *
- * Requires that the VAS is already locked.
+ * Requires that the VAS and the VAS segment is already locked.
  *
- * @param[in] avas:	The pointer to the attached-VAS data structure
- *			containing all the information of this attaching.
- * @param[in] tsk:	The pointer to the task to which the VAS should be
- *			attached.
- * @param[in] vas:	The pointer to the VAS which should be attached.
+ * @param[in] vas:	The pointer to the VAS into which the VAS segment should
+ *			be merged.
+ * @param[in] seg:	The pointer to the VAS segment that should be merged.
+ * @param[in] type:	The type of attaching (see attach_segment for more
+ *			information).
  *
- * @returns:		0 on succes, -ERRNO otherwise.
+ * @returns:		0 on success, -ERRNO otherwise.
  **/
-static int __vas_attach(struct att_vas *avas, struct task_struct *tsk,
-			struct vas *vas)
+static int vas_seg_merge(struct vas *vas, struct vas_seg *seg, int type)
 {
+	struct vm_area_struct *vma, *new_vma;
+	struct mm_struct *vas_mm, *seg_mm;
 	int ret;
 
-	/* Before doing anything, synchronize the RSS-stat of the task. */
-	sync_mm_rss(tsk->mm);
+	vas_mm = vas->mm;
+	seg_mm = seg->mm;
 
-	/*
-	 * Try to acquire the VAS share with the proper type. This will ensure
-	 * that the different sharing possibilities of VAS are respected.
-	 */
-	if (!vas_take_share(avas->type, vas)) {
-		pr_vas_debug("VAS is already attached exclusively\n");
-		return -EBUSY;
-	}
+	dump_memory_map("Before VAS MM", vas_mm);
+	dump_memory_map("Before VAS segment MM", seg_mm);
 
-	ret = vas_merge(avas, vas, avas->type);
-	if (ret != 0)
-		goto out_put_share;
+	if (down_write_killable(&vas_mm->mmap_sem))
+		return -EINTR;
+	down_read_nested(&seg_mm->mmap_sem, SINGLE_DEPTH_NESTING);
 
-	ret = task_merge(avas, tsk);
-	if (ret != 0)
-		goto out_put_share;
+	/* Try to copy all VMAs of the VAS into the AS of the attached-VAS. */
+	for (vma = seg_mm->mmap; vma; vma = vma->vm_next) {
+		unsigned long merged_vm_flags = vma->vm_flags;
 
-	vas->refcount++;
+		pr_vas_debug("Merging a VAS segment memory region (%#lx - %#lx)\n",
+			     vma->vm_start, vma->vm_end);
 
-	return 0;
+		/*
+		 * Remove the writable bit from the vm_flags if the VAS segment
+		 * is attached only readable.
+		 */
+		if (!(type & MAY_WRITE))
+			merged_vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
 
-out_put_share:
-	vas_put_share(avas->type, vas);
-	return ret;
-}
+		new_vma = __copy_vm_area(seg_mm, vma, vas_mm, merged_vm_flags);
+		if (!new_vma) {
+			pr_vas_debug("Failed to merge a VAS segment memory region (%#lx - %#lx)\n",
+				     vma->vm_start, vma->vm_end);
+			ret = -EFAULT;
+			goto out_unlock;
+		}
 
-/**
- * Detach a VAS from a task -- update internal information ONLY
- *
- * Requires that the VAS is already locked.
- *
- * @param[in] avas:	The pointer to the attached-VAS data structure
- *			containing all the information of this attaching.
- * @param[in] tsk:	The pointer to the task from which the VAS should be
- *			detached.
+		/*
+		 * Remember for the VMA that we just added it to the VAS that it
+		 * actually belongs to the VAS segment.
+		 */
+		new_vma->vas_reference = seg_mm;
+	}
+
+	ret = 0;
+
+out_unlock:
+	up_read(&seg_mm->mmap_sem);
+	up_write(&vas_mm->mmap_sem);
+
+	dump_memory_map("After VAS MM", vas_mm);
+	dump_memory_map("After VAS segment MM", seg_mm);
+
+	return ret;
+}
+
+/**
+ * Unmerge the VAS segment-related parts of a VAS' memory map back into the
+ * VAS segment's memory map.
+ *
+ * Requires that the VAS and the VAS segment are already locked.
+ *
+ * @param[in] vas:	The pointer to the VAS from which the VAS segment
+ *			related data should be taken.
+ * @param[in] seg:	The pointer to the VAS segment for which the memory map
+ *			should be updated again.
+ *
+ * @returns:		0 on success, -ERRNO otherwise.
+ **/
+static int vas_seg_unmerge(struct vas *vas, struct vas_seg *seg)
+{
+	struct vm_area_struct *vma, *next;
+	struct mm_struct *vas_mm, *seg_mm;
+	int ret;
+
+	vas_mm = vas->mm;
+	seg_mm = seg->mm;
+
+	dump_memory_map("Before VAS MM", vas_mm);
+	dump_memory_map("Before VAS segment MM", seg_mm);
+
+	if (down_write_killable(&vas_mm->mmap_sem))
+		return -EINTR;
+	down_write_nested(&seg_mm->mmap_sem, SINGLE_DEPTH_NESTING);
+
+	/* Update all memory regions which belonged to the VAS segment. */
+	for (vma = vas_mm->mmap, next = next_vma_safe(vma); vma;
+	     vma = next, next = next_vma_safe(next)) {
+		struct mm_struct *ref_mm = vma->vas_reference;
+
+		if (ref_mm != seg_mm) {
+			pr_vas_debug("Skipping memory region (%#lx - %#lx) during VAS segment unmerging\n",
+				     vma->vm_start, vma->vm_end);
+			continue;
+		} else {
+			struct vm_area_struct *upd_vma;
+
+			pr_vas_debug("Unmerging a VAS segment memory region (%#lx - %#lx)\n",
+				     vma->vm_start, vma->vm_end);
+
+			upd_vma = __update_vm_area(vas_mm, vma, seg_mm, NULL);
+			if (!upd_vma) {
+				pr_vas_debug("Failed to unmerge a VAS segment memory region (%#lx - %#lx)\n",
+					     vma->vm_start, vma->vm_end);
+				ret = -EFAULT;
+				goto out_unlock;
+			}
+		}
+
+		/* Remove the current VMA from the VAS memory map. */
+		__remove_vm_area(vas_mm, vma);
+	}
+
+	ret = 0;
+
+out_unlock:
+	up_write(&seg_mm->mmap_sem);
+	up_write(&vas_mm->mmap_sem);
+
+	dump_memory_map("After VAS MM", vas_mm);
+	dump_memory_map("After VAS segment MM", seg_mm);
+
+	return ret;
+}
+
+/**
+ * Attach a VAS to a task -- update internal information ONLY
+ *
+ * Requires that the VAS is already locked.
+ *
+ * @param[in] avas:	The pointer to the attached-VAS data structure
+ *			containing all the information of this attaching.
+ * @param[in] tsk:	The pointer to the task to which the VAS should be
+ *			attached.
+ * @param[in] vas:	The pointer to the VAS which should be attached.
+ *
+ * @returns:		0 on success, -ERRNO otherwise.
+ **/
+static int __vas_attach(struct att_vas *avas, struct task_struct *tsk,
+			struct vas *vas)
+{
+	int ret;
+
+	/* Before doing anything, synchronize the RSS-stat of the task. */
+	sync_mm_rss(tsk->mm);
+
+	/*
+	 * Try to acquire the VAS share with the proper type. This will ensure
+	 * that the different sharing possibilities of VAS are respected.
+	 */
+	if (!vas_take_share(avas->type, vas)) {
+		pr_vas_debug("VAS is already attached exclusively\n");
+		return -EBUSY;
+	}
+
+	ret = vas_merge(avas, vas, avas->type);
+	if (ret != 0)
+		goto out_put_share;
+
+	ret = task_merge(avas, tsk);
+	if (ret != 0)
+		goto out_put_share;
+
+	vas->refcount++;
+
+	return 0;
+
+out_put_share:
+	vas_put_share(avas->type, vas);
+	return ret;
+}
+
+/**
+ * Detach a VAS from a task -- update internal information ONLY
+ *
+ * Requires that the VAS is already locked.
+ *
+ * @param[in] avas:	The pointer to the attached-VAS data structure
+ *			containing all the information of this attaching.
+ * @param[in] tsk:	The pointer to the task from which the VAS should be
+ *			detached.
  * @param[in] vas:	The pointer to the VAS which should be detached.
  *
  * @returns:		0 on success, -ERRNO otherwise.
@@ -1209,6 +1721,83 @@ static int __vas_detach(struct att_vas *avas, struct task_struct *tsk,
 	return 0;
 }
 
+/**
+ * Attach a VAS segment to a VAS -- update internal information ONLY
+ *
+ * Requires that the VAS segment and the VAS are already locked.
+ *
+ * @param aseg:		The pointer tot he attached VAS segment data structure
+ *			containing all the information of this attaching.
+ * @param vas:		The pointer to the VAS to which the VAS segment should
+ *			be attached.
+ * @param seg:		The pointer to the VAS segment which should be attached.
+ *
+ * @returns:		0 on success, -ERRNO otherwise.
+ **/
+static int __vas_seg_attach(struct att_vas_seg *aseg, struct vas *vas,
+			   struct vas_seg *seg)
+{
+	int ret;
+
+	/*
+	 * Try to acquire the VAS segment share with the proper type. This will
+	 * ensure that the different sharing possibilities of VAS segments are
+	 * respected.
+	 */
+	if (!vas_seg_take_share(aseg->type, seg)) {
+		pr_vas_debug("VAS segment is already attached to a VAS writable\n");
+		return -EBUSY;
+	}
+
+	/* Update the memory map of the VAS. */
+	ret = vas_seg_merge(vas, seg, aseg->type);
+	if (ret != 0)
+		goto out_put_share;
+
+	seg->refcount++;
+	vas->nr_segments++;
+
+	return 0;
+
+out_put_share:
+	vas_seg_put_share(aseg->type, seg);
+	return ret;
+}
+
+/**
+ * Detach a VAS segment from a VAS -- update internal information ONLY
+ *
+ * Requires that the VAS segment and the VAS are already locked.
+ *
+ * @param aseg:		The pointer to the attached VAS segment data structure
+ *			containing all the information of this attaching.
+ * @param vas:		The pointer to the VAS from which the VAS segment should
+ *			be detached.
+ * @param seg:		The pointer to the VAS segment which should be detached.
+ *
+ * @returns:		0 on success, -ERRNO otherwise.
+ **/
+static int __vas_seg_detach(struct att_vas_seg *aseg, struct vas *vas,
+			    struct vas_seg *seg)
+{
+	int ret;
+
+	/* Update the memory maps of the VAS segment and the VAS. */
+	ret = vas_seg_unmerge(vas, seg);
+	if (ret != 0)
+		return ret;
+
+	seg->refcount--;
+	vas->nr_segments--;
+
+	/*
+	 * We unlock the VAS segment here to ensure our sharing properties.
+	 */
+	vas_seg_put_share(aseg->type, seg);
+
+	return 0;
+}
+
 static int __sync_from_task(struct mm_struct *avas_mm, struct mm_struct *tsk_mm)
 {
 	struct vm_area_struct *vma;
@@ -1542,6 +2131,9 @@ int vas_create(const char *name, umode_t mode)
 	spin_lock_init(&vas->share_lock);
 	vas->sharing = 0;
 
+	INIT_LIST_HEAD(&vas->segments);
+	vas->nr_segments = 0;
+
 	vas->mode = mode & 0666;
 	vas->uid = current_uid();
 	vas->gid = current_gid();
@@ -1596,6 +2188,7 @@ EXPORT_SYMBOL(vas_find);
 int vas_delete(int vid)
 {
 	struct vas *vas;
+	struct att_vas_seg *aseg, *s_aseg;
 	int ret;
 
 	vas = vas_get(vid);
@@ -1618,6 +2211,39 @@ int vas_delete(int vid)
 		goto out_unlock;
 	}
 
+	/* Detach all still attached VAS segments. */
+	list_for_each_entry_safe(aseg, s_aseg, &vas->segments, vas_link) {
+		struct vas_seg *seg = aseg->seg;
+		int error;
+
+		pr_vas_debug("Detaching VAS segment - name: %s - from to-be-deleted VAS - name: %s\n",
+			     seg->name, vas->name);
+
+		/*
+		 * Make sure that our VAS segment reference is not removed while
+		 * we work with it.
+		 */
+		__vas_seg_get(seg);
+
+		/*
+		 * Since the VAS from which we detach this VAS segment is going
+		 * to be deleted anyways we can shorten the detaching process.
+		 */
+		vas_seg_lock(seg);
+
+		error = __vas_seg_detach(aseg, vas, seg);
+		if (error != 0)
+			pr_alert("Detaching VAS segment from VAS failed with %d\n",
+				 error);
+
+		list_del(&aseg->seg_link);
+		list_del(&aseg->vas_link);
+		__delete_att_vas_seg(aseg);
+
+		vas_seg_unlock(seg);
+		__vas_seg_put(seg);
+	}
+
 	vas_unlock(vas);
 
 	vas_remove(vas);
@@ -1908,19 +2534,433 @@ int vas_setattr(int vid, struct vas_attr *attr)
 }
 EXPORT_SYMBOL(vas_setattr);
 
+int vas_seg_create(const char *name, unsigned long start, unsigned long end,
+		   umode_t mode)
+{
+	struct vas_seg *seg;
+	int ret;
+
+	if (!name || !PAGE_ALIGNED(start) || !PAGE_ALIGNED(end) ||
+	    (end <= start))
+		return -EINVAL;
+
+	if (vas_seg_find(name) > 0)
+		return -EEXIST;
+
+	pr_vas_debug("Creating a new VAS segment - name: %s start: %#lx end: %#lx\n",
+		     name, start, end);
+
+	/* Allocate and initialize the VAS segment. */
+	seg = __new_vas_seg();
+	if (!seg)
+		return -ENOMEM;
+
+	if (strscpy(seg->name, name, VAS_MAX_NAME_LENGTH) < 0) {
+		ret = -EINVAL;
+		goto out_free;
+	}
+
+	mutex_init(&seg->mtx);
+
+	seg->start = start;
+	seg->end = end;
+	seg->length = end - start;
+
+	ret = init_vas_seg_mm(seg);
+	if (ret != 0)
+		goto out_free;
+
+	seg->refcount = 0;
+
+	INIT_LIST_HEAD(&seg->attaches);
+	spin_lock_init(&seg->share_lock);
+	seg->sharing = 0;
+
+	seg->mode = mode & 0666;
+	seg->uid = current_uid();
+	seg->gid = current_gid();
+
+	ret = vas_seg_insert(seg);
+	if (ret != 0)
+		/*
+		 * We don't need to free anything here. @vas_seg_insert will
+		 * care for the deletion if something went wrong.
+		 */
+		return ret;
+
+	return seg->id;
+
+out_free:
+	__delete_vas_seg(seg);
+	return ret;
+}
+EXPORT_SYMBOL(vas_seg_create);
+
+struct vas_seg *vas_seg_get(int sid)
+{
+	return vas_seg_lookup(sid);
+}
+EXPORT_SYMBOL(vas_seg_get);
+
+void vas_seg_put(struct vas_seg *seg)
+{
+	if (!seg)
+		return;
+
+	return __vas_seg_put(seg);
+}
+EXPORT_SYMBOL(vas_seg_put);
+
+int vas_seg_find(const char *name)
+{
+	struct vas_seg *seg;
+
+	seg = vas_seg_lookup_by_name(name);
+	if (seg) {
+		int sid = seg->id;
+
+		vas_seg_put(seg);
+		return sid;
+	}
+
+	return -ESRCH;
+}
+EXPORT_SYMBOL(vas_seg_find);
+
+int vas_seg_delete(int id)
+{
+	struct vas_seg *seg;
+	int ret;
+
+	seg = vas_seg_get(id);
+	if (!seg)
+		return -EINVAL;
+
+	pr_vas_debug("Deleting VAS segment - name: %s\n", seg->name);
+
+	vas_seg_lock(seg);
+
+	if (seg->refcount != 0) {
+		ret = -EBUSY;
+		goto out_unlock;
+	}
+
+	/* The user needs write permission to the VAS segment to delete it. */
+	ret = __check_permission(seg->uid, seg->gid, seg->mode, MAY_WRITE);
+	if (ret != 0) {
+		pr_vas_debug("User doesn't have the appropriate permissions to delete the VAS segment\n");
+		goto out_unlock;
+	}
+
+	vas_seg_unlock(seg);
+
+	vas_seg_remove(seg);
+	vas_seg_put(seg);
+
+	return 0;
+
+out_unlock:
+	vas_seg_unlock(seg);
+	vas_seg_put(seg);
+
+	return ret;
+}
+EXPORT_SYMBOL(vas_seg_delete);
+
+int vas_seg_attach(int vid, int sid, int type)
+{
+	struct vas *vas;
+	struct vas_seg *seg;
+	struct att_vas_seg *aseg;
+	int ret;
+
+	type &= (MAY_READ | MAY_WRITE);
+
+	vas = vas_get(vid);
+	if (!vas)
+		return -EINVAL;
+
+	seg = vas_seg_get(sid);
+	if (!seg) {
+		vas_put(vas);
+		return -EINVAL;
+	}
+
+	pr_vas_debug("Attaching VAS segment - name: %s - to VAS - name: %s - %s\n",
+		     seg->name, vas->name, access_type_str(type));
+
+	vas_lock(vas);
+	vas_seg_lock(seg);
+
+	/*
+	 * Before we can attach the VAS segment to the VAS we have to make some
+	 * sanity checks.
+	 */
+
+	/*
+	 * 1: Check that the user has adequate permissions to attach the VAS
+	 * segment in the given way.
+	 */
+	ret = __check_permission(seg->uid, seg->gid, seg->mode, type);
+	if (ret != 0) {
+		pr_vas_debug("User doesn't have the appropriate permissions to attach the VAS segment\n");
+		goto out_unlock;
+	}
+
+	/*
+	 * 2: The user needs write permission to the VAS to attach a VAS segment
+	 * to it. Check that this requirement is fulfilled.
+	 */
+	ret = __check_permission(vas->uid, vas->gid, vas->mode, MAY_WRITE);
+	if (ret != 0) {
+		pr_vas_debug("User doesn't have the appropriate permissions on the VAS to attach the VAS segment\n");
+		goto out_unlock;
+	}
+
+
+	/*
+	 * 3: Check if the VAS is attached to a process. We do not support
+	 * changes to an attached VAS. A VAS must not be attached to a process
+	 * to be able to make changes to it. This ensures that the page tables
+	 * are always properly initialized.
+	 */
+	if (vas->refcount != 0) {
+		pr_vas_debug("VAS is attached to a process\n");
+		ret = -EBUSY;
+		goto out_unlock;
+	}
+
+	/*
+	 * 4: Check if the VAS segment is already attached to this particular
+	 * VAS. Double-attaching would lead to unintended behavior.
+	 */
+	list_for_each_entry(aseg, &seg->attaches, seg_link) {
+		if (aseg->vas == vas) {
+			pr_vas_debug("VAS segment is already attached to the VAS\n");
+			ret = 0;
+			goto out_unlock;
+		}
+	}
+
+	/* 5: Check if we reached the maximum number of shares for this VAS. */
+	if (seg->refcount == VAS_MAX_SHARES) {
+		ret = -EBUSY;
+		goto out_unlock;
+	}
+
+	/*
+	 * All sanity checks are done. It is safe to attach this VAS segment to
+	 * the VAS now.
+	 */
+
+	/* Allocate and initialize the attached VAS segment data structure. */
+	aseg = __new_att_vas_seg();
+	if (!aseg) {
+		ret = -ENOMEM;
+		goto out_unlock;
+	}
+
+	aseg->seg = seg;
+	aseg->vas = vas;
+	aseg->type = type;
+
+	ret = __vas_seg_attach(aseg, vas, seg);
+	if (ret != 0)
+		goto out_free_aseg;
+
+	list_add(&aseg->vas_link, &vas->segments);
+	list_add(&aseg->seg_link, &seg->attaches);
+
+	ret = 0;
+
+out_unlock:
+	vas_seg_unlock(seg);
+	vas_seg_put(seg);
+
+	vas_unlock(vas);
+	vas_put(vas);
+
+	return ret;
+
+out_free_aseg:
+	__delete_att_vas_seg(aseg);
+	goto out_unlock;
+}
+EXPORT_SYMBOL(vas_seg_attach);
+
+int vas_seg_detach(int vid, int sid)
+{
+	struct vas *vas;
+	struct vas_seg *seg;
+	struct att_vas_seg *aseg;
+	bool is_attached;
+	int ret;
+
+	vas = vas_get(vid);
+	if (!vas)
+		return -EINVAL;
+
+	vas_lock(vas);
+
+	is_attached = false;
+	list_for_each_entry(aseg, &vas->segments, vas_link) {
+		if (aseg->seg->id == sid) {
+			is_attached = true;
+			break;
+		}
+	}
+	if (!is_attached) {
+		pr_vas_debug("VAS segment is not attached to the given VAS\n");
+		ret = -EINVAL;
+		goto out_unlock_vas;
+	}
+
+	seg = aseg->seg;
+
+	/*
+	 * Make sure that our reference to the VAS segment is not deleted while
+	 * we are working with it.
+	 */
+	__vas_seg_get(seg);
+
+	vas_seg_lock(seg);
+
+	pr_vas_debug("Detaching VAS segment - name: %s - from VAS - name: %s\n",
+		     seg->name, vas->name);
+
+	/*
+	 * Before we can detach the VAS segment from the VAS we have to do some
+	 * sanity checks.
+	 */
+
+	/*
+	 * 1: Check if the VAS is attached to a process. We do not support
+	 * changes to an attached VAS. A VAS must not be attached to a process
+	 * to be able to make changes to it. This ensures that the page tables
+	 * are always properly initialized.
+	 */
+	if (vas->refcount != 0) {
+		pr_vas_debug("VAS is attached to a process\n");
+		ret = -EBUSY;
+		goto out_unlock;
+	}
+
+	/*
+	 * All sanity checks are done. It is safe to detach the VAS segment from
+	 * the VAS now.
+	 */
+	ret = __vas_seg_detach(aseg, vas, seg);
+	if (ret != 0)
+		goto out_unlock;
+
+	list_del(&aseg->seg_link);
+	list_del(&aseg->vas_link);
+	__delete_att_vas_seg(aseg);
+
+	ret = 0;
+
+out_unlock:
+	vas_seg_unlock(seg);
+	__vas_seg_put(seg);
+
+out_unlock_vas:
+	vas_unlock(vas);
+	vas_put(vas);
+
+	return ret;
+}
+EXPORT_SYMBOL(vas_seg_detach);
+
+int vas_seg_getattr(int sid, struct vas_seg_attr *attr)
+{
+	struct vas_seg *seg;
+	struct user_namespace *ns = current_user_ns();
+
+	if (!attr)
+		return -EINVAL;
+
+	seg = vas_seg_get(sid);
+	if (!seg)
+		return -EINVAL;
+
+	pr_vas_debug("Getting attributes for VAS segment - name: %s\n",
+		     seg->name);
+
+	vas_seg_lock(seg);
+
+	memset(attr, 0, sizeof(struct vas_seg_attr));
+	attr->mode = seg->mode;
+	attr->user = from_kuid(ns, seg->uid);
+	attr->group = from_kgid(ns, seg->gid);
+
+	vas_seg_unlock(seg);
+	vas_seg_put(seg);
+
+	return 0;
+}
+EXPORT_SYMBOL(vas_seg_getattr);
+
+int vas_seg_setattr(int sid, struct vas_seg_attr *attr)
+{
+	struct vas_seg *seg;
+	struct user_namespace *ns = current_user_ns();
+	int ret;
+
+	if (!attr)
+		return -EINVAL;
+
+	seg = vas_seg_get(sid);
+	if (!seg)
+		return -EINVAL;
+
+	pr_vas_debug("Setting attributes for VAS segment - name: %s\n",
+		     seg->name);
+
+	vas_seg_lock(seg);
+
+	/*
+	 * The user needs write permission to change attributes for the
+	 * VAS segment.
+	 */
+	ret = __check_permission(seg->uid, seg->gid, seg->mode, MAY_WRITE);
+	if (ret != 0) {
+		pr_vas_debug("User doesn't have the appropriate permissions to set attributes for the VAS segment\n");
+		goto out_unlock;
+	}
+
+	seg->mode = attr->mode & 0666;
+	seg->uid = make_kuid(ns, attr->user);
+	seg->gid = make_kgid(ns, attr->group);
+
+	ret = 0;
+
+out_unlock:
+	vas_seg_unlock(seg);
+	vas_seg_put(seg);
+
+	return ret;
+}
+EXPORT_SYMBOL(vas_seg_setattr);
+
 void __init vas_init(void)
 {
 	/* Create the SLAB caches for our data structures. */
 	vas_cachep = KMEM_CACHE(vas, SLAB_PANIC|SLAB_NOTRACK);
 	att_vas_cachep = KMEM_CACHE(att_vas, SLAB_PANIC|SLAB_NOTRACK);
 	vas_context_cachep = KMEM_CACHE(vas_context, SLAB_PANIC|SLAB_NOTRACK);
+	seg_cachep = KMEM_CACHE(vas_seg, SLAB_PANIC|SLAB_NOTRACK);
+	att_seg_cachep = KMEM_CACHE(att_vas_seg, SLAB_PANIC|SLAB_NOTRACK);
 
 	/* Initialize the internal management data structures. */
 	idr_init(&vases);
 	spin_lock_init(&vases_lock);
 
+	idr_init(&vas_segs);
+	spin_lock_init(&vas_segs_lock);
+
 	/* Initialize the place holder variables. */
 	INVALID_VAS = __new_vas();
+	INVALID_VAS_SEG = __new_vas_seg();
 
 	/* Initialize the VAS context of the init task. */
 	vas_clone(0, &init_task);
@@ -1941,6 +2981,12 @@ static int __init vas_sysfs_init(void)
 		return -ENOMEM;
 	}
 
+	vas_segs_kset = kset_create_and_add("vas_segs", NULL, kernel_kobj);
+	if (!vas_segs_kset) {
+		pr_err("Failed to initialize the VAS segment sysfs directory\n");
+		return -ENOMEM;
+	}
+
 	return 0;
 }
 postcore_initcall(vas_sysfs_init);
@@ -2186,3 +3232,105 @@ SYSCALL_DEFINE2(vas_setattr, int, vid, struct vas_attr __user *, uattr)
 
 	return vas_setattr(vid, &attr);
 }
+
+SYSCALL_DEFINE4(vas_seg_create, const char __user *, name, unsigned long, begin,
+		unsigned long, end, umode_t, mode)
+{
+	char seg_name[VAS_MAX_NAME_LENGTH];
+	int len;
+
+	if (!name)
+		return -EINVAL;
+
+	len = strlen(name);
+	if (len >= VAS_MAX_NAME_LENGTH)
+		return -EINVAL;
+
+	if (copy_from_user(seg_name, name, len) != 0)
+		return -EFAULT;
+
+	seg_name[len] = '\0';
+
+	return vas_seg_create(seg_name, begin, end, mode);
+}
+
+SYSCALL_DEFINE1(vas_seg_delete, int, id)
+{
+	if (id < 0)
+		return -EINVAL;
+
+	return vas_seg_delete(id);
+}
+
+SYSCALL_DEFINE1(vas_seg_find, const char __user *, name)
+{
+	char seg_name[VAS_MAX_NAME_LENGTH];
+	int len;
+
+	if (!name)
+		return -EINVAL;
+
+	len = strlen(name);
+	if (len >= VAS_MAX_NAME_LENGTH)
+		return -EINVAL;
+
+	if (copy_from_user(seg_name, name, len) != 0)
+		return -EFAULT;
+
+	seg_name[len] = '\0';
+
+	return vas_seg_find(seg_name);
+}
+
+SYSCALL_DEFINE3(vas_seg_attach, int, vid, int, sid, int, type)
+{
+	int vas_acc_type;
+
+	if (vid < 0 || sid < 0)
+		return -EINVAL;
+
+	vas_acc_type = __build_vas_access_type(type);
+	if (vas_acc_type == -1)
+		return -EINVAL;
+
+	return vas_seg_attach(vid, sid, vas_acc_type);
+}
+
+SYSCALL_DEFINE2(vas_seg_detach, int, vid, int, sid)
+{
+	if (vid < 0 || sid < 0)
+		return -EINVAL;
+
+	return vas_seg_detach(vid, sid);
+}
+
+SYSCALL_DEFINE2(vas_seg_getattr, int, sid, struct vas_seg_attr __user *, uattr)
+{
+	struct vas_seg_attr attr;
+	int ret;
+
+	if (sid < 0 || !uattr)
+		return -EINVAL;
+
+	ret = vas_seg_getattr(sid, &attr);
+	if (ret != 0)
+		return ret;
+
+	if (copy_to_user(uattr, &attr, sizeof(struct vas_seg_attr)) != 0)
+		return -EFAULT;
+
+	return 0;
+}
+
+SYSCALL_DEFINE2(vas_seg_setattr, int, sid, struct vas_seg_attr __user *, uattr)
+{
+	struct vas_seg_attr attr;
+
+	if (sid < 0 || !uattr)
+		return -EINVAL;
+
+	if (copy_from_user(&attr, uattr, sizeof(struct vas_seg_attr)) != 0)
+		return -EFAULT;
+
+	return vas_seg_setattr(sid, &attr);
+}
-- 
2.12.0

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From - Thu Nov 08 21:39:43 2018
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From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: [RFC PATCH 10/13] mm: Introduce first class virtual address spaces
Date: Mon, 13 Mar 2017 15:14:12 -0700
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.aio.general/4946>

Introduce a different type of address spaces which are first class citizens
in the OS. That means that the kernel now handles two types of AS, those
which are closely coupled with a process and those which aren't. While the
former ones are created and destroyed together with the process by the
kernel and are the default type of AS in the Linux kernel, the latter ones
have to be managed explicitly by the user and are the newly introduced
type.

Accordingly, a first class AS (also called VAS == virtual address space)
can exist in the OS independently from any process. A user has to
explicitly create and destroy them in the system. Processes and VAS can be
combined by attaching a previously created VAS to a process which basically
adds an additional AS to the process that the process' threads are able to
execute in. Hence, VAS allow a process to have different views onto the
main memory of the system (its original AS and the attached VAS) between
which its threads can switch arbitrarily during their lifetime.

The functionality made available through first class virtual address spaces
can be used in various different ways. One possible way to utilize VAS is
to compartmentalize a process for security reasons. Another possible usage
is to improve the performance of data-centric applications by being able to
manage different sets of data in memory without the need to map or unmap
them.

Furthermore, first class virtual address spaces can be attached to
different processes at the same time if the underlying memory is only
readable. This mechanism allows sharing of whole address spaces between
multiple processes that can both execute in them using the contained
memory.

Signed-off-by: Till Smejkal <till.smejkal@gmail.com>
Signed-off-by: Marco Benatto <marco.antonio.780@gmail.com>
---
 MAINTAINERS                            |   10 +
 arch/x86/entry/syscalls/syscall_32.tbl |    9 +
 arch/x86/entry/syscalls/syscall_64.tbl |    9 +
 fs/exec.c                              |    3 +
 include/linux/mm_types.h               |    8 +
 include/linux/sched.h                  |   17 +
 include/linux/syscalls.h               |   11 +
 include/linux/vas.h                    |  182 +++
 include/linux/vas_types.h              |   88 ++
 include/uapi/asm-generic/unistd.h      |   20 +-
 include/uapi/linux/Kbuild              |    1 +
 include/uapi/linux/vas.h               |   16 +
 init/main.c                            |    2 +
 kernel/exit.c                          |    2 +
 kernel/fork.c                          |   28 +-
 kernel/sys_ni.c                        |   11 +
 mm/Kconfig                             |   20 +
 mm/Makefile                            |    1 +
 mm/internal.h                          |    8 +
 mm/memory.c                            |    3 +
 mm/mmap.c                              |   22 +
 mm/vas.c                               | 2188 ++++++++++++++++++++++++++++++++
 22 files changed, 2657 insertions(+), 2 deletions(-)
 create mode 100644 include/linux/vas.h
 create mode 100644 include/linux/vas_types.h
 create mode 100644 include/uapi/linux/vas.h
 create mode 100644 mm/vas.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 527d13759ecc..060b1c64e67a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5040,6 +5040,16 @@ F:	Documentation/firmware_class/
 F:	drivers/base/firmware*.c
 F:	include/linux/firmware.h
 
+FIRST CLASS VIRTUAL ADDRESS SPACES
+M:	Till Smejkal <till.smejkal@gmail.com>
+L:	linux-kernel@vger.kernel.org
+L:	linux-mm@kvack.org
+S:	Maintained
+F:	include/linux/vas_types.h
+F:	include/linux/vas.h
+F:	include/uapi/linux/vas.h
+F:	mm/vas.c
+
 FLASH ADAPTER DRIVER (IBM Flash Adapter 900GB Full Height PCI Flash Card)
 M:	Joshua Morris <josh.h.morris@us.ibm.com>
 M:	Philip Kelleher <pjk1939@linux.vnet.ibm.com>
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index 2b3618542544..8c553eef8c44 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -389,3 +389,12 @@
 380	i386	pkey_mprotect		sys_pkey_mprotect
 381	i386	pkey_alloc		sys_pkey_alloc
 382	i386	pkey_free		sys_pkey_free
+383	i386	vas_create		sys_vas_create
+384	i386	vas_delete		sys_vas_delete
+385	i386	vas_find		sys_vas_find
+386	i386	vas_attach		sys_vas_attach
+387	i386	vas_detach		sys_vas_detach
+388	i386	vas_switch		sys_vas_switch
+389	i386	active_vas		sys_active_vas
+390	i386	vas_getattr		sys_vas_getattr
+391	i386	vas_setattr		sys_vas_setattr
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index e93ef0b38db8..72f1f0495710 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -338,6 +338,15 @@
 329	common	pkey_mprotect		sys_pkey_mprotect
 330	common	pkey_alloc		sys_pkey_alloc
 331	common	pkey_free		sys_pkey_free
+332	common	vas_create		sys_vas_create
+333	common	vas_delete		sys_vas_delete
+334	common	vas_find		sys_vas_find
+335	common	vas_attach		sys_vas_attach
+336	common	vas_detach		sys_vas_detach
+337	common	vas_switch		sys_vas_switch
+338	common	active_vas		sys_active_vas
+339	common	vas_getattr		sys_vas_getattr
+340	common	vas_setattr		sys_vas_setattr
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/fs/exec.c b/fs/exec.c
index 68d7908a1e5a..e1ac0a8c76bf 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1020,6 +1020,9 @@ static int exec_mmap(struct mm_struct *mm)
 	active_mm = tsk->active_mm;
 	tsk->mm = mm;
 	tsk->active_mm = mm;
+#ifdef CONFIG_VAS
+	tsk->original_mm = mm;
+#endif
 	activate_mm(active_mm, mm);
 	tsk->mm->vmacache_seqnum = 0;
 	vmacache_flush(tsk);
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 6aa03e88dcff..82bf78ea83ee 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -13,6 +13,7 @@
 #include <linux/uprobes.h>
 #include <linux/page-flags-layout.h>
 #include <linux/workqueue.h>
+#include <linux/ktime.h>
 #include <asm/page.h>
 #include <asm/mmu.h>
 
@@ -358,6 +359,10 @@ struct vm_area_struct {
 	struct mempolicy *vm_policy;	/* NUMA policy for the VMA */
 #endif
 	struct vm_userfaultfd_ctx vm_userfaultfd_ctx;
+#ifdef CONFIG_VAS
+	struct mm_struct *vas_reference;
+	ktime_t vas_last_update;
+#endif
 };
 
 struct core_thread {
@@ -514,6 +519,9 @@ struct mm_struct {
 	atomic_long_t hugetlb_usage;
 #endif
 	struct work_struct async_put_work;
+#ifdef CONFIG_VAS
+	ktime_t vas_last_update;
+#endif
 };
 
 static inline void mm_init_cpumask(struct mm_struct *mm)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 7955adc00397..216876912e77 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1508,6 +1508,18 @@ struct tlbflush_unmap_batch {
 	bool writable;
 };
 
+/* Shared information of attached VASes between processes */
+#ifdef CONFIG_VAS
+struct vas_context {
+	spinlock_t lock;
+	u16 refcount;			// < the number of tasks using this
+					//   VAS context.
+
+	struct list_head vases;		// < the list of attached-VASes which
+					//   are handled by this VAS context.
+};
+#endif
+
 struct task_struct {
 #ifdef CONFIG_THREAD_INFO_IN_TASK
 	/*
@@ -1583,6 +1595,11 @@ struct task_struct {
 #endif
 
 	struct mm_struct *mm, *active_mm;
+#ifdef CONFIG_VAS
+	struct mm_struct *original_mm;
+	struct vas_context *vas_ctx;
+	int active_vas;
+#endif
 	/* per-thread vma caching */
 	u32 vmacache_seqnum;
 	struct vm_area_struct *vmacache[VMACACHE_SIZE];
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 91a740f6b884..fdea27d37c96 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -65,6 +65,7 @@ struct old_linux_dirent;
 struct perf_event_attr;
 struct file_handle;
 struct sigaltstack;
+struct vas_attr;
 union bpf_attr;
 
 #include <linux/types.h>
@@ -903,4 +904,14 @@ asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
 asmlinkage long sys_pkey_free(int pkey);
 
+asmlinkage long sys_vas_create(const char __user *name, umode_t mode);
+asmlinkage long sys_vas_delete(int vid);
+asmlinkage long sys_vas_find(const char __user *name);
+asmlinkage long sys_vas_attach(pid_t pid, int vid, int type);
+asmlinkage long sys_vas_detach(pid_t pid, int vid);
+asmlinkage long sys_vas_switch(int vid);
+asmlinkage long sys_active_vas(void);
+asmlinkage long sys_vas_getattr(int vid, struct vas_attr __user *attr);
+asmlinkage long sys_vas_setattr(int vid, struct vas_attr __user *attr);
+
 #endif
diff --git a/include/linux/vas.h b/include/linux/vas.h
new file mode 100644
index 000000000000..6a72e42f96d2
--- /dev/null
+++ b/include/linux/vas.h
@@ -0,0 +1,182 @@
+#ifndef _LINUX_VAS_H
+#define _LINUX_VAS_H
+
+
+#include <linux/sched.h>
+#include <linux/vas_types.h>
+
+
+/***
+ * General management of the VAS subsystem
+ ***/
+
+#ifdef CONFIG_VAS
+
+/***
+ * Management of VASes
+ ***/
+
+/**
+ * Lock and unlock helper for VAS.
+ **/
+#define vas_lock(vas) mutex_lock(&(vas)->mtx)
+#define vas_unlock(vas) mutex_unlock(&(vas)->mtx)
+
+/**
+ * Create a new VAS.
+ *
+ * @param[in] name:		The name of the new VAS.
+ * @param[in] mode:		The access rights for the VAS.
+ *
+ * @returns:			The VAS ID on success, -ERRNO otherwise.
+ **/
+extern int vas_create(const char *name, umode_t mode);
+
+/**
+ * Get a pointer to a VAS data structure.
+ *
+ * @param[in] vid:		The ID of the VAS whose data structure should be
+ *				returned.
+ *
+ * @returns:			The pointer to the VAS data structure on
+ *				success, or NULL otherwise.
+ **/
+extern struct vas *vas_get(int vid);
+
+/**
+ * Return a pointer to a VAS data structure again.
+ *
+ * @param[in] vas:		The pointer to the VAS data structure that
+ *				should be returned.
+ **/
+extern void vas_put(struct vas *vas);
+
+/**
+ * Get the ID of the VAS belonging to the given name.
+ *
+ * @param[in] name:		The name of the VAS for which the ID should be
+ *				returned.
+ *
+ * @returns:			The VAS ID on success, -ERRNO otherwise.
+ **/
+extern int vas_find(const char *name);
+
+/**
+ * Delete the given VAS structure again.
+ *
+ * @param[in] vid:		The ID of the VAS which should be deleted.
+ *
+ * @returns:			0 on success, -ERRNO otherwise.
+ **/
+extern int vas_delete(int vid);
+
+/**
+ * Attach a VAS to a process.
+ *
+ * @param[in] tsk:		The task to which the VAS should be attached to.
+ * @param[in] vid:		The ID of the VAS which should be attached.
+ * @param[in] type:		The type how the VAS should be attached.
+ *
+ * @returns:			0 on success, -ERRNO otherwise.
+ **/
+extern int vas_attach(struct task_struct *tsk, int vid, int type);
+
+/**
+ * Detach a VAS from a process.
+ *
+ * @param[in] tsk:		The task from which the VAS should be detached.
+ * @param[in] vid:		The ID of the VAS which should be detached.
+ *
+ * @returns:			0 on success, -ERRNO otherwise.
+ **/
+extern int vas_detach(struct task_struct *tsk, int vid);
+
+/**
+ * Switch to a different VAS.
+ *
+ * @param[in] tsk:		The task for which the VAS should be switched.
+ * @param[in] vid:		The ID of the VAS which should be activated.
+ *
+ * @returns:			0 on success, -ERRNO otherwise.
+ **/
+extern int vas_switch(struct task_struct *tsk, int vid);
+
+/**
+ * Get attributes of a VAS.
+ *
+ * @param[in] vid:		The ID of the VAS for which the attributes
+ *				should be returned.
+ * @param[out] attr:		The pointer to the struct where the attributes
+ *				should be saved.
+ *
+ * @returns:			0 on success, -ERRNO otherwise.
+ **/
+extern int vas_getattr(int vid, struct vas_attr *attr);
+
+/**
+ * Set attributes of a VAS.
+ *
+ * @param[in] vid:		The ID of the VAS for which the attributes
+ *				should be updated.
+ * @param[in] attr:		The pointer to the struct containing the new
+ *				attributes.
+ *
+ * @returns:			0 on success, -ERRNO otherwise.
+ **/
+extern int vas_setattr(int vid, struct vas_attr *attr);
+
+
+/***
+ * Management of VAS contexts
+ ***/
+
+/**
+ * Lock and unlock helper for VAS contexts.
+ **/
+#define vas_context_lock(ctx) spin_lock(&(ctx)->lock)
+#define vas_context_unlock(ctx) spin_unlock(&(ctx)->lock)
+
+
+/***
+ * Management of the VAS subsystem
+ ***/
+
+/**
+ * Initialize the VAS subsystem
+ **/
+extern void vas_init(void);
+
+
+/***
+ * Management of the VAS subsystem during fork and exit
+ ***/
+
+/**
+ * Initialize the task-specific VAS data structures during the clone system
+ * call.
+ *
+ * @param[in] clone_flags:	The flags which were given to the system call by
+ *				the user.
+ * @param[in] tsk:		The new task which should be initialized.
+ *
+ * @returns:			0 on success, -ERRNO otherwise.
+ **/
+extern int vas_clone(int clone_flags, struct task_struct *tsk);
+
+/**
+ * Destroy the task-specific VAS data structures during the exit system call.
+ *
+ * @param[in] tsk:		The task for which data structures should be
+ *				destructed.
+ **/
+extern void vas_exit(struct task_struct *tsk);
+
+#else /* CONFIG_VAS */
+
+static inline void __init vas_init(void) {}
+static inline int vas_clone(int cf, struct task_struct *tsk) { return 0; }
+static inline int vas_exit(struct task_struct *tsk) { return 0; }
+
+#endif /* CONFIG_VAS */
+
+#endif
diff --git a/include/linux/vas_types.h b/include/linux/vas_types.h
new file mode 100644
index 000000000000..f06bfa9ef729
--- /dev/null
+++ b/include/linux/vas_types.h
@@ -0,0 +1,88 @@
+#ifndef _LINUX_VAS_TYPES_H
+#define _LINUX_VAS_TYPES_H
+
+#include <uapi/linux/vas.h>
+
+#include <linux/kobject.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/spinlock_types.h>
+#include <linux/types.h>
+
+
+#define VAS_MAX_NAME_LENGTH 256
+
+#define VAS_IS_ERROR(id) ((id) < 0)
+
+/**
+ * Forward declare various important shared data structures.
+ **/
+struct mm_struct;
+struct task_struct;
+
+/**
+ * The struct representing a Virtual Address Space (VAS).
+ *
+ * This data structure contains all the necessary information of a VAS such as
+ * its name, ID. It also contains access rights and other management
+ * information.
+ **/
+struct vas {
+	struct kobject kobj;		/* < the internal kobject that we use *
+					 *   for reference counting and sysfs *
+					 *   handling.                        */
+
+	int id;				/* < ID                               */
+	char name[VAS_MAX_NAME_LENGTH];	/* < name                             */
+
+	struct mutex mtx;		/* < lock for parallel access.        */
+
+	struct mm_struct *mm;		/* < a partial memory map containing  *
+					 *   all mappings of this VAS.        */
+
+	struct list_head link;		/* < the link in the global VAS list. */
+	struct rcu_head rcu;		/* < the RCU helper used for          *
+					 *   asynchronous VAS deletion.       */
+
+	u16 refcount;			/* < how often is the VAS attached.   */
+	struct list_head attaches;	/* < the list of tasks which have     *
+					 *   this VAS attached.               */
+
+	spinlock_t share_lock;		/* < lock for protecting sharing      *
+					 *   state.                           */
+	u32 sharing;			/* < the variable used to keep track  *
+					 *   of the current sharing state of  *
+					 *   the VAS.                         */
+
+	umode_t mode;			/* < the access rights to this VAS.   */
+	kuid_t uid;			/* < the UID of the owning user of    *
+					 *   this VAS.                        */
+	kgid_t gid;			/* < the GID of the owning group of   *
+					 *   this VAS.                        */
+};
+
+/**
+ * The struct representing a VAS being attached to a process.
+ *
+ * Once a VAS is attached to a process additional information are necessary.
+ * This data structure contains all these information which makes using a VAS
+ * fast and easy.
+ **/
+struct att_vas {
+	struct vas *vas;		/* < the reference to the actual VAS  *
+					 *   containing all the information.  */
+
+	struct task_struct *tsk;	/* < the reference to the task to     *
+					 *   which the VAS is attached to.    */
+
+	struct mm_struct *mm;		/* < the backing memory map.          */
+
+	struct list_head tsk_link;	/* < the link in the list managed     *
+					 *   inside the task.                 */
+	struct list_head vas_link;	/* < the link in the list managed     *
+					 *   inside the VAS.                  */
+
+	int type;			/* < the type of attaching (RO/RW).   */
+};
+
+#endif
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 9b1462e38b82..35df7d40a443 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -730,9 +730,27 @@ __SYSCALL(__NR_pkey_mprotect, sys_pkey_mprotect)
 __SYSCALL(__NR_pkey_alloc,    sys_pkey_alloc)
 #define __NR_pkey_free 290
 __SYSCALL(__NR_pkey_free,     sys_pkey_free)
+#define __NR_vas_create 291
+__SYSCALL(__NR_vas_create, sys_vas_create)
+#define __NR_vas_delete 292
+__SYSCALL(__NR_vas_delete, sys_vas_delete)
+#define __NR_vas_find 293
+__SYSCALL(__NR_vas_find, sys_vas_find)
+#define __NR_vas_attach 294
+__SYSCALL(__NR_vas_attach, sys_vas_attach)
+#define __NR_vas_detach 295
+__SYSCALL(__NR_vas_detach, sys_vas_detach)
+#define __NR_vas_switch 296
+__SYSCALL(__NR_vas_switch, sys_vas_switch)
+#define __NR_active_vas 297
+__SYSCALL(__NR_active_vas, sys_active_vas)
+#define __NR_vas_getattr 298
+__SYSCALL(__NR_vas_getattr, sys_vas_getattr)
+#define __NR_vas_setattr 299
+__SYSCALL(__NR_vas_setattr, sys_vas_setattr)
 
 #undef __NR_syscalls
-#define __NR_syscalls 291
+#define __NR_syscalls 300
 
 /*
  * All syscalls below here should go away really,
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index f330ba4547cf..5666900bdf06 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -446,6 +446,7 @@ header-y += v4l2-controls.h
 header-y += v4l2-dv-timings.h
 header-y += v4l2-mediabus.h
 header-y += v4l2-subdev.h
+header-y += vas.h
 header-y += veth.h
 header-y += vfio.h
 header-y += vhost.h
diff --git a/include/uapi/linux/vas.h b/include/uapi/linux/vas.h
new file mode 100644
index 000000000000..02f70f88bdcb
--- /dev/null
+++ b/include/uapi/linux/vas.h
@@ -0,0 +1,16 @@
+#ifndef _UAPI_LINUX_VAS_H
+#define _UAPI_LINUX_VAS_H
+
+#include <linux/types.h>
+
+
+/**
+ * The struct containing attributes of a VAS.
+ **/
+struct vas_attr {
+	__kernel_mode_t mode;		/* < the access rights to the VAS.    */
+	__kernel_uid_t user;		/* < the owning user of the VAS.      */
+	__kernel_gid_t group;		/* < the owning group of the VAS.     */
+};
+
+#endif
diff --git a/init/main.c b/init/main.c
index b0c9d6facef9..16f33b04f8ea 100644
--- a/init/main.c
+++ b/init/main.c
@@ -82,6 +82,7 @@
 #include <linux/proc_ns.h>
 #include <linux/io.h>
 #include <linux/cache.h>
+#include <linux/vas.h>
 
 #include <asm/io.h>
 #include <asm/bugs.h>
@@ -538,6 +539,7 @@ asmlinkage __visible void __init start_kernel(void)
 	sort_main_extable();
 	trap_init();
 	mm_init();
+	vas_init();
 
 	/*
 	 * Set up the scheduler prior starting any interrupts (such as the
diff --git a/kernel/exit.c b/kernel/exit.c
index 8f14b866f9f6..b9687ea70a5b 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -55,6 +55,7 @@
 #include <linux/shm.h>
 #include <linux/kcov.h>
 #include <linux/random.h>
+#include <linux/vas.h>
 
 #include <linux/uaccess.h>
 #include <asm/unistd.h>
@@ -823,6 +824,7 @@ void __noreturn do_exit(long code)
 	tsk->exit_code = code;
 	taskstats_exit(tsk, group_dead);
 
+	vas_exit(tsk);
 	exit_mm(tsk);
 
 	if (group_dead)
diff --git a/kernel/fork.c b/kernel/fork.c
index d3087d870855..292299c7995e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -76,6 +76,8 @@
 #include <linux/compiler.h>
 #include <linux/sysctl.h>
 #include <linux/kcov.h>
+#include <linux/vas.h>
+#include <linux/timekeeping.h>
 
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
@@ -781,6 +783,10 @@ struct mm_struct *mm_setup(struct mm_struct *mm)
 	if (mm_alloc_pgd(mm))
 		goto fail_nopgd;
 
+#ifdef CONFIG_VAS
+	mm->vas_last_update = ktime_get();
+#endif
+
 	return mm;
 
 fail_nopgd:
@@ -1207,6 +1213,9 @@ static int copy_mm(unsigned long clone_flags, struct task_struct *tsk)
 
 	tsk->mm = NULL;
 	tsk->active_mm = NULL;
+#ifdef CONFIG_VAS
+	tsk->original_mm = NULL;
+#endif
 
 	/*
 	 * Are we cloning a kernel thread?
@@ -1217,6 +1226,15 @@ static int copy_mm(unsigned long clone_flags, struct task_struct *tsk)
 	if (!oldmm)
 		return 0;
 
+#ifdef CONFIG_VAS
+	/*
+	 * Never fork the address space of a VAS but use the process'
+	 * original one.
+	 */
+	if (oldmm != current->original_mm)
+		oldmm = current->original_mm;
+#endif
+
 	/* initialize the new vmacache entries */
 	vmacache_flush(tsk);
 
@@ -1234,6 +1252,9 @@ static int copy_mm(unsigned long clone_flags, struct task_struct *tsk)
 good_mm:
 	tsk->mm = mm;
 	tsk->active_mm = mm;
+#ifdef CONFIG_VAS
+	tsk->original_mm = mm;
+#endif
 	return 0;
 
 fail_nomem:
@@ -1700,9 +1721,12 @@ static __latent_entropy struct task_struct *copy_process(
 	retval = copy_mm(clone_flags, p);
 	if (retval)
 		goto bad_fork_cleanup_signal;
-	retval = copy_namespaces(clone_flags, p);
+	retval = vas_clone(clone_flags, p);
 	if (retval)
 		goto bad_fork_cleanup_mm;
+	retval = copy_namespaces(clone_flags, p);
+	if (retval)
+		goto bad_fork_cleanup_vas;
 	retval = copy_io(clone_flags, p);
 	if (retval)
 		goto bad_fork_cleanup_namespaces;
@@ -1885,6 +1909,8 @@ static __latent_entropy struct task_struct *copy_process(
 		exit_io_context(p);
 bad_fork_cleanup_namespaces:
 	exit_task_namespaces(p);
+bad_fork_cleanup_vas:
+	vas_exit(p);
 bad_fork_cleanup_mm:
 	if (p->mm)
 		mmput(p->mm);
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 8acef8576ce9..f6f83c5ec1a1 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -258,3 +258,14 @@ cond_syscall(sys_membarrier);
 cond_syscall(sys_pkey_mprotect);
 cond_syscall(sys_pkey_alloc);
 cond_syscall(sys_pkey_free);
+
+/* first class virtual address spaces */
+cond_syscall(sys_vas_create);
+cond_syscall(sys_vas_delete);
+cond_syscall(sys_vas_find);
+cond_syscall(sys_vas_attach);
+cond_syscall(sys_vas_detach);
+cond_syscall(sys_vas_switch);
+cond_syscall(sys_active_vas);
+cond_syscall(sys_vas_getattr);
+cond_syscall(sys_vas_setattr);
diff --git a/mm/Kconfig b/mm/Kconfig
index 9b8fccb969dc..9a80877f3536 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -707,3 +707,23 @@ config ARCH_USES_HIGH_VMA_FLAGS
 	bool
 config ARCH_HAS_PKEYS
 	bool
+
+config VAS
+	bool "Support for First Class Virtual Address Spaces"
+	default n
+	help
+	  Support for First Class Virtual Address Spaces which are address space
+	  that are not bound to the lifetime of any process but can exist
+	  independently in the system. With this feature processes are allowed
+	  to have multiple different address spaces between which their threads
+	  can switch arbitrarily.
+
+	  If not sure, then say N.
+
+config VAS_DEBUG
+	bool "Debugging output for First Class Virtual Address Spaces"
+	depends on VAS
+	default n
+	help
+	  Enable extensive debugging output for the First Class Virtual Address
+	  Spaces feature.
diff --git a/mm/Makefile b/mm/Makefile
index 295bd7a9f76b..ba8995e944d7 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -100,3 +100,4 @@ obj-$(CONFIG_IDLE_PAGE_TRACKING) += page_idle.o
 obj-$(CONFIG_FRAME_VECTOR) += frame_vector.o
 obj-$(CONFIG_DEBUG_PAGE_REF) += debug_page_ref.o
 obj-$(CONFIG_HARDENED_USERCOPY) += usercopy.o
+obj-$(CONFIG_VAS)	+= vas.o
diff --git a/mm/internal.h b/mm/internal.h
index e22cb031b45b..f947e8c50bae 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -499,4 +499,12 @@ extern const struct trace_print_flags pageflag_names[];
 extern const struct trace_print_flags vmaflag_names[];
 extern const struct trace_print_flags gfpflag_names[];
 
+#ifdef CONFIG_VAS
+void mm_updated(struct mm_struct *mm);
+void vm_area_updated(struct vm_area_struct *vma);
+#else
+static inline void mm_updated(struct mm_struct *mm) {}
+static inline void vm_area_updated(struct vm_area_struct *vma) {}
+#endif
+
 #endif	/* __MM_INTERNAL_H */
diff --git a/mm/memory.c b/mm/memory.c
index 7026f2146fcd..e4747b3fd5b9 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4042,6 +4042,9 @@ int handle_mm_fault(struct vm_area_struct *vma, unsigned long address,
 				&& test_bit(MMF_UNSTABLE, &vma->vm_mm->flags)))
 		ret = VM_FAULT_SIGBUS;
 
+	if (ret)
+		vm_area_updated(vma);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(handle_mm_fault);
diff --git a/mm/mmap.c b/mm/mmap.c
index d35c6b51cadf..1d82b2260448 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -44,6 +44,7 @@
 #include <linux/userfaultfd_k.h>
 #include <linux/moduleparam.h>
 #include <linux/pkeys.h>
+#include <linux/timekeeping.h>
 
 #include <linux/uaccess.h>
 #include <asm/cacheflush.h>
@@ -942,6 +943,7 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start,
 		uprobe_mmap(insert);
 
 	validate_mm(mm);
+	vm_area_updated(vma);
 
 	return 0;
 }
@@ -1135,6 +1137,7 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
 		if (err)
 			return NULL;
 		khugepaged_enter_vma_merge(prev, vm_flags);
+		vm_area_updated(prev);
 		return prev;
 	}
 
@@ -1162,6 +1165,7 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
 		if (err)
 			return NULL;
 		khugepaged_enter_vma_merge(area, vm_flags);
+		vm_area_updated(area);
 		return area;
 	}
 
@@ -1719,6 +1723,7 @@ unsigned long mmap_region(struct mm_struct *mm, struct file *file,
 	vma->vm_flags |= VM_SOFTDIRTY;
 
 	vma_set_page_prot(vma);
+	vm_area_updated(vma);
 
 	return addr;
 
@@ -2263,6 +2268,7 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 	anon_vma_unlock_write(vma->anon_vma);
 	khugepaged_enter_vma_merge(vma, vma->vm_flags);
 	validate_mm(mm);
+	vm_area_updated(vma);
 	return error;
 }
 #endif /* CONFIG_STACK_GROWSUP || CONFIG_IA64 */
@@ -2332,6 +2338,7 @@ int expand_downwards(struct vm_area_struct *vma,
 	anon_vma_unlock_write(vma->anon_vma);
 	khugepaged_enter_vma_merge(vma, vma->vm_flags);
 	validate_mm(mm);
+	vm_area_updated(vma);
 	return error;
 }
 
@@ -2457,6 +2464,7 @@ void munmap_region(struct mm_struct *mm, struct vm_area_struct *vma,
 	free_pgtables(&tlb, vma, prev ? prev->vm_end : FIRST_USER_ADDRESS,
 				 next ? next->vm_start : USER_PGTABLES_CEILING);
 	tlb_finish_mmu(&tlb, start, end);
+	mm_updated(mm);
 }
 
 /*
@@ -2656,6 +2664,7 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
 
 	/* Fix up all other VM information */
 	remove_vma_list(mm, vma);
+	mm_updated(mm);
 
 	return 0;
 }
@@ -2882,6 +2891,7 @@ static int do_brk(unsigned long addr, unsigned long request)
 	if (flags & VM_LOCKED)
 		mm->locked_vm += (len >> PAGE_SHIFT);
 	vma->vm_flags |= VM_SOFTDIRTY;
+	vm_area_updated(vma);
 	return 0;
 }
 
@@ -3058,6 +3068,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
 		vma_link(mm, new_vma, prev, rb_link, rb_parent);
 		*need_rmap_locks = false;
 	}
+	vm_area_updated(new_vma);
 	return new_vma;
 
 out_free_mempol:
@@ -3204,6 +3215,7 @@ static struct vm_area_struct *__install_special_mapping(
 	vm_stat_account(mm, vma->vm_flags, len >> PAGE_SHIFT);
 
 	perf_event_mmap(vma);
+	vm_area_updated(vma);
 
 	return vma;
 
@@ -3550,3 +3562,13 @@ static int __meminit init_reserve_notifier(void)
 	return 0;
 }
 subsys_initcall(init_reserve_notifier);
+
+void mm_updated(struct mm_struct *mm)
+{
+	mm->vas_last_update = ktime_get();
+}
+
+void vm_area_updated(struct vm_area_struct *vma)
+{
+	vma->vas_last_update = vma->vm_mm->vas_last_update = ktime_get();
+}
diff --git a/mm/vas.c b/mm/vas.c
new file mode 100644
index 000000000000..447d61e1da79
--- /dev/null
+++ b/mm/vas.c
@@ -0,0 +1,2188 @@
+/*
+ *  First Class Virtual Address Spaces
+ *  Copyright (c) 2016-2017, Hewlett Packard Enterprise
+ *
+ *  Code Authors:
+ *     Marco A Benatto <marco.antonio.780@gmail.com>
+ *     Till Smejkal <till.smejkal@gmail.com>
+ */
+
+
+#include <linux/vas.h>
+
+#include <linux/atomic.h>
+#include <linux/cred.h>
+#include <linux/errno.h>
+#include <linux/export.h>
+#include <linux/fcntl.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/kobject.h>
+#include <linux/ktime.h>
+#include <linux/list.h>
+#include <linux/lockdep.h>
+#include <linux/mempolicy.h>
+#include <linux/mm.h>
+#include <linux/mman.h>
+#include <linux/mmu_context.h>
+#include <linux/mmu_notifier.h>
+#include <linux/mutex.h>
+#include <linux/printk.h>
+#include <linux/rbtree.h>
+#include <linux/rcupdate.h>
+#include <linux/rmap.h>
+#include <linux/rwsem.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/syscalls.h>
+#include <linux/uidgid.h>
+#include <linux/uaccess.h>
+#include <linux/vmacache.h>
+
+#include <asm/mman.h>
+#include <asm/processor.h>
+
+#include "internal.h"
+
+
+/***
+ * Internally used defines
+ ***/
+
+/**
+ * Make sure we are not overflowing the VAS sharing variable.
+ **/
+#define VAS_MAX_SHARES U16_MAX
+
+#define VAS_MAX_ID INT_MAX
+
+/**
+ * Masks and bits to implement sharing of VAS.
+ **/
+#define VAS_SHARE_READABLE (1 << 0)
+#define VAS_SHARE_WRITABLE (1 << 16)
+#define VAS_SHARE_READ_MASK 0xffff
+#define VAS_SHARE_WRITE_MASK 0xffff0000
+#define VAS_SHARE_READ_WRITE_MASK (VAS_SHARE_READ_MASK | VAS_SHARE_WRITE_MASK)
+
+/**
+ * Get the next vm_area_struct of the VMA list in the memory map but safely.
+ **/
+#define next_vma_safe(vma) ((vma) ? (vma)->vm_next : NULL)
+
+/**
+ * Get a string representation of the access type to a VAS.
+ **/
+#define access_type_str(type) ((type) & MAY_WRITE ?			\
+			       ((type) & MAY_READ ? "rw" : "wo") : "ro")
+
+
+/***
+ * Debugging functions
+ ***/
+
+#ifdef CONFIG_VAS_DEBUG
+
+/**
+ * Dump the content of the given memory map.
+ *
+ * @param mm:		The memory map which should be dumped.
+ **/
+static void __dump_memory_map(const char *title, struct mm_struct *mm)
+{
+	int count;
+	struct vm_area_struct *vma;
+
+	down_read(&mm->mmap_sem);
+
+	/* Dump some general information. */
+	pr_info("-- %s [%p] --\n"
+		"> General information <\n"
+		"  PGD value: %#lx\n"
+		"  Task size: %#lx\n"
+		"  Map count: %d\n"
+		"  Last update: %lld\n"
+		"  Code:  %#lx - %#lx\n"
+		"  Data:  %#lx - %#lx\n"
+		"  Heap:  %#lx - %#lx\n"
+		"  Stack: %#lx\n"
+		"  Args:  %#lx - %#lx\n"
+		"  Env:   %#lx - %#lx\n",
+		title, mm, pgd_val(*mm->pgd), mm->task_size, mm->map_count,
+		mm->vas_last_update, mm->start_code, mm->end_code,
+		mm->start_data, mm->end_data, mm->start_brk, mm->brk,
+		mm->start_stack, mm->arg_start, mm->arg_end, mm->env_start,
+		mm->env_end);
+
+	/* Dump current RSS state counters of the memory map. */
+	pr_cont("> RSS Counter <\n");
+	for (count = 0; count < NR_MM_COUNTERS; ++count)
+		pr_cont(" %d: %lu\n", count, get_mm_counter(mm, count));
+
+	/* Dump the information for each region. */
+	pr_cont("> Mapped Regions <\n");
+	for (vma = mm->mmap, count = 0; vma; vma = vma->vm_next, ++count) {
+		pr_cont("  VMA %3d: %#14lx - %#-14lx", count, vma->vm_start,
+			vma->vm_end);
+
+		if (is_exec_mapping(vma->vm_flags))
+			pr_cont(" EXEC  ");
+		else if (is_data_mapping(vma->vm_flags))
+			pr_cont(" DATA  ");
+		else if (is_stack_mapping(vma->vm_flags))
+			pr_cont(" STACK ");
+		else
+			pr_cont(" OTHER ");
+
+		pr_cont("%c%c%c%c [%c]",
+			vma->vm_flags & VM_READ ? 'r' : '-',
+			vma->vm_flags & VM_WRITE ? 'w' : '-',
+			vma->vm_flags & VM_EXEC ? 'x' : '-',
+			vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
+			vma->vas_reference ? 'v' : '-');
+
+		if (vma->vm_file) {
+			struct file *f = vma->vm_file;
+			char *buf;
+
+			buf = kmalloc(PATH_MAX, GFP_TEMPORARY);
+			if (buf) {
+				char *p;
+
+				p = file_path(f, buf, PATH_MAX);
+				if (IS_ERR(p))
+					p = "?";
+
+				pr_cont(" --> %s @%lu\n", p, vma->vm_pgoff);
+				kfree(buf);
+			} else {
+				pr_cont(" --> NA @%lu\n", vma->vm_pgoff);
+			}
+		} else if (vma->vm_ops && vma->vm_ops->name) {
+			pr_cont(" --> %s\n", vma->vm_ops->name(vma));
+		} else {
+			pr_cont(" ANON\n");
+		}
+	}
+	if (count == 0)
+		pr_cont("  EMPTY\n");
+
+	up_read(&mm->mmap_sem);
+}
+
+#define pr_vas_debug(fmt, args...) pr_info("[VAS] %s - " fmt, __func__, ##args)
+#define dump_memory_map(title, mm) __dump_memory_map(title, mm)
+
+#else /* CONFIG_VAS_DEBUG */
+
+#define pr_vas_debug(...) do {} while (0)
+#define dump_memory_map(...) do {} while (0)
+
+#endif /* CONFIG_VAS_DEBUG */
+
+/***
+ * Internally used variables
+ ***/
+
+/**
+ * All SLAB caches used to improve allocation performance.
+ **/
+static struct kmem_cache *vas_cachep;
+static struct kmem_cache *att_vas_cachep;
+static struct kmem_cache *vas_context_cachep;
+
+/**
+ * Global management data structures and their associated locks.
+ **/
+static struct idr vases;
+static spinlock_t vases_lock;
+
+/**
+ * The place holder variables that are used to identify to-be-deleted items in
+ * our global management data structures.
+ **/
+static struct vas *INVALID_VAS;
+
+/**
+ * Kernel 'ksets' where all objects will be managed.
+ **/
+static struct kset *vases_kset;
+
+
+/***
+ * Constructors and destructors for the data structures.
+ ***/
+static inline struct vm_area_struct *__new_vm_area(void)
+{
+	return kmem_cache_zalloc(vm_area_cachep, GFP_ATOMIC);
+}
+
+static inline void __delete_vm_area(struct vm_area_struct *vma)
+{
+	kmem_cache_free(vm_area_cachep, vma);
+}
+
+static inline struct vas *__new_vas(void)
+{
+	return kmem_cache_zalloc(vas_cachep, GFP_KERNEL);
+}
+
+static inline void __delete_vas(struct vas *vas)
+{
+	WARN_ON(vas->refcount != 0);
+
+	mutex_destroy(&vas->mtx);
+
+	if (vas->mm)
+		mmput_async(vas->mm);
+	kmem_cache_free(vas_cachep, vas);
+}
+
+static inline void __delete_vas_rcu(struct rcu_head *rp)
+{
+	struct vas *vas = container_of(rp, struct vas, rcu);
+
+	__delete_vas(vas);
+}
+
+static inline struct att_vas *__new_att_vas(void)
+{
+	return kmem_cache_zalloc(att_vas_cachep, GFP_ATOMIC);
+}
+
+static inline void __delete_att_vas(struct att_vas *avas)
+{
+	if (avas->mm)
+		mmput_async(avas->mm);
+	kmem_cache_free(att_vas_cachep, avas);
+}
+
+static inline struct vas_context *__new_vas_context(void)
+{
+	return kmem_cache_zalloc(vas_context_cachep, GFP_KERNEL);
+}
+
+static inline void __delete_vas_context(struct vas_context *ctx)
+{
+	WARN_ON(ctx->refcount != 0);
+
+	kmem_cache_free(vas_context_cachep, ctx);
+}
+
+/***
+ * Kobject management of data structures
+ ***/
+
+/**
+ * Correctly take and put VAS.
+ **/
+static inline struct vas *__vas_get(struct vas *vas)
+{
+	return container_of(kobject_get(&vas->kobj), struct vas, kobj);
+}
+
+static inline void __vas_put(struct vas *vas)
+{
+	kobject_put(&vas->kobj);
+}
+
+/**
+ * The sysfs structure we need to handle attributes of a VAS.
+ **/
+struct vas_sysfs_attr {
+	struct attribute attr;
+	ssize_t (*show)(struct vas *vas, struct vas_sysfs_attr *vsattr,
+			char *buf);
+	ssize_t (*store)(struct vas *vas, struct vas_sysfs_attr *vsattr,
+			 const char *buf, size_t count);
+};
+
+#define VAS_SYSFS_ATTR(NAME, MODE, SHOW, STORE)				\
+static struct vas_sysfs_attr vas_sysfs_attr_##NAME =			\
+	__ATTR(NAME, MODE, SHOW, STORE)
+
+/**
+ * Functions for all the sysfs operations.
+ **/
+static ssize_t __vas_sysfs_attr_show(struct kobject *kobj,
+				     struct attribute *attr,
+				     char *buf)
+{
+	struct vas *vas;
+	struct vas_sysfs_attr *vsattr;
+
+	vas = container_of(kobj, struct vas, kobj);
+	vsattr = container_of(attr, struct vas_sysfs_attr, attr);
+
+	if (!vsattr->show)
+		return -EIO;
+
+	return vsattr->show(vas, vsattr, buf);
+}
+
+static ssize_t __vas_sysfs_attr_store(struct kobject *kobj,
+				      struct attribute *attr,
+				      const char *buf, size_t count)
+{
+	struct vas *vas;
+	struct vas_sysfs_attr *vsattr;
+
+	vas = container_of(kobj, struct vas, kobj);
+	vsattr = container_of(attr, struct vas_sysfs_attr, attr);
+
+	if (!vsattr->store)
+		return -EIO;
+
+	return vsattr->store(vas, vsattr, buf, count);
+}
+
+/**
+ * The sysfs operations structure for a VAS.
+ **/
+static const struct sysfs_ops vas_sysfs_ops = {
+	.show = __vas_sysfs_attr_show,
+	.store = __vas_sysfs_attr_store,
+};
+
+/**
+ * Default attributes of a VAS.
+ **/
+static ssize_t __show_vas_name(struct vas *vas, struct vas_sysfs_attr *vsattr,
+			       char *buf)
+{
+	return scnprintf(buf, PAGE_SIZE, "%s", vas->name);
+}
+VAS_SYSFS_ATTR(name, 0444, __show_vas_name, NULL);
+
+static ssize_t __show_vas_mode(struct vas *vas, struct vas_sysfs_attr *vsattr,
+			       char *buf)
+{
+	return scnprintf(buf, PAGE_SIZE, "%#03o", vas->mode);
+}
+VAS_SYSFS_ATTR(mode, 0444, __show_vas_mode, NULL);
+
+static ssize_t __show_vas_user(struct vas *vas, struct vas_sysfs_attr *vsattr,
+			       char *buf)
+{
+	struct user_namespace *ns = current_user_ns();
+
+	return scnprintf(buf, PAGE_SIZE, "%d", from_kuid(ns, vas->uid));
+}
+VAS_SYSFS_ATTR(user, 0444, __show_vas_user, NULL);
+
+static ssize_t __show_vas_group(struct vas *vas, struct vas_sysfs_attr *vsattr,
+				char *buf)
+{
+	struct user_namespace *ns = current_user_ns();
+
+	return scnprintf(buf, PAGE_SIZE, "%d", from_kgid(ns, vas->gid));
+}
+VAS_SYSFS_ATTR(group, 0444, __show_vas_group, NULL);
+
+static struct attribute *vas_default_attr[] = {
+	&vas_sysfs_attr_name.attr,
+	&vas_sysfs_attr_mode.attr,
+	&vas_sysfs_attr_user.attr,
+	&vas_sysfs_attr_group.attr,
+	NULL
+};
+
+/**
+ * Function to release the VAS after its kobject is gone.
+ **/
+static void __vas_release(struct kobject *kobj)
+{
+	struct vas *vas = container_of(kobj, struct vas, kobj);
+
+	spin_lock(&vases_lock);
+	idr_remove(&vases, vas->id);
+	spin_unlock(&vases_lock);
+
+	/*
+	 * Wait for the full RCU grace period before actually deleting the VAS
+	 * data structure since we haven't done it earlier.
+	 */
+	call_rcu(&vas->rcu, __delete_vas_rcu);
+}
+
+/**
+ * The ktype data structure representing a VAS.
+ **/
+static struct kobj_type vas_ktype = {
+	.sysfs_ops = &vas_sysfs_ops,
+	.release = __vas_release,
+	.default_attrs = vas_default_attr,
+};
+
+
+/***
+ * Internally visible functions
+ ***/
+
+/**
+ * Working with the global VAS list.
+ **/
+static inline void vas_remove(struct vas *vas)
+{
+	spin_lock(&vases_lock);
+
+	/*
+	 * Only put the to-be-deleted place holder in the IDR, the actual remove
+	 * in the IDR and the freeing of the object  will be done when we
+	 * release the kobject. We need to do it this way, to keep the ID
+	 * reserved. Otherwise it can happen, that we try to create a new VAS
+	 * with a reused ID in the sysfs before the current VAS is removed from
+	 * the sysfs.
+	 */
+	idr_replace(&vases, INVALID_VAS, vas->id);
+	spin_unlock(&vases_lock);
+
+	/*
+	 * No need to wait for the RCU period here, we will do it before
+	 * actually deleting the VAS in the 'vas_release' function.
+	 */
+	__vas_put(vas);
+}
+
+static inline int vas_insert(struct vas *vas)
+{
+	int ret;
+
+	/* Add the VAS in the IDR cache. */
+	spin_lock(&vases_lock);
+
+	ret = idr_alloc(&vases, vas, 1, VAS_MAX_ID, GFP_KERNEL);
+
+	spin_unlock(&vases_lock);
+
+	if (ret < 0) {
+		__delete_vas(vas);
+		return ret;
+	}
+
+	/* Add the last data to the VAS' data structure. */
+	vas->id = ret;
+	vas->kobj.kset = vases_kset;
+
+	/* Initialize the kobject and add it to the sysfs. */
+	ret = kobject_init_and_add(&vas->kobj, &vas_ktype, NULL, "%d", vas->id);
+	if (ret != 0) {
+		vas_remove(vas);
+		return ret;
+	}
+
+	/* The VAS is ready, trigger the corresponding UEVENT. */
+	kobject_uevent(&vas->kobj, KOBJ_ADD);
+
+	/*
+	 * We don't put or get the VAS again, because its reference count will
+	 * be initialized with '1'. This will be reduced to 0 when we remove the
+	 * VAS again from the internal global management list.
+	 */
+	return 0;
+}
+
+static inline struct vas *vas_lookup(int id)
+{
+	struct vas *vas;
+
+	rcu_read_lock();
+
+	vas = idr_find(&vases, id);
+	if (vas == INVALID_VAS)
+		vas = NULL;
+	if (vas)
+		vas = __vas_get(vas);
+
+	rcu_read_unlock();
+
+	return vas;
+}
+
+static inline struct vas *vas_lookup_by_name(const char *name)
+{
+	struct vas *vas;
+	int id;
+
+	rcu_read_lock();
+
+	idr_for_each_entry(&vases, vas, id) {
+		if (vas == INVALID_VAS)
+			continue;
+
+		if (strcmp(vas->name, name) == 0)
+			break;
+	}
+
+	if (vas)
+		vas = __vas_get(vas);
+
+	rcu_read_unlock();
+
+	return vas;
+}
+
+ /**
+  * Management of the sharing of VAS.
+  **/
+static inline int vas_take_share(int type, struct vas *vas)
+{
+	int ret;
+
+	spin_lock(&vas->share_lock);
+	if (type & MAY_WRITE) {
+		if ((vas->sharing & VAS_SHARE_READ_WRITE_MASK) == 0) {
+			vas->sharing += VAS_SHARE_WRITABLE;
+			ret = 1;
+		} else
+			ret = 0;
+	} else {
+		if ((vas->sharing & VAS_SHARE_WRITE_MASK) == 0) {
+			vas->sharing += VAS_SHARE_READABLE;
+			ret = 1;
+		} else
+			ret = 0;
+	}
+	spin_unlock(&vas->share_lock);
+
+	return ret;
+}
+
+static inline void vas_put_share(int type, struct vas *vas)
+{
+	spin_lock(&vas->share_lock);
+	if (type & MAY_WRITE)
+		vas->sharing -= VAS_SHARE_WRITABLE;
+	else
+		vas->sharing -= VAS_SHARE_READABLE;
+	spin_unlock(&vas->share_lock);
+}
+
+/**
+ * Management of the memory maps.
+ **/
+static int init_vas_mm(struct vas *vas)
+{
+	struct mm_struct *mm;
+
+	mm = mm_alloc();
+	if (!mm)
+		return -ENOMEM;
+
+	mm = mm_setup(mm);
+	if (!mm)
+		return -ENOMEM;
+
+	arch_pick_mmap_layout(mm);
+
+	vas->mm = mm;
+	return 0;
+}
+
+static int init_att_vas_mm(struct att_vas *avas, struct task_struct *owner)
+{
+	struct mm_struct *mm, *orig_mm = owner->original_mm;
+
+	mm = mm_alloc();
+	if (!mm)
+		return -ENOMEM;
+
+	mm = mm_setup(mm);
+	if (!mm)
+		return -ENOMEM;
+
+	mm = mm_set_task(mm, owner, orig_mm->user_ns);
+	if (!mm)
+		return -ENOMEM;
+
+	arch_pick_mmap_layout(mm);
+
+	/* Additional setup of the memory map. */
+	set_mm_exe_file(mm, get_mm_exe_file(orig_mm));
+	mm->vas_last_update = orig_mm->vas_last_update;
+
+	avas->mm = mm;
+	return 0;
+}
+
+/**
+ * Lookup the corresponding vm_area in the referenced memory map.
+ *
+ * The function is very similar to 'find_exact_vma'. However, it can also handle
+ * cases where a VMA was resized while the referenced one wasn't or visa-versa.
+ **/
+static struct vm_area_struct *vas_find_reference(struct mm_struct *mm,
+						 struct vm_area_struct *vma)
+{
+	struct vm_area_struct *ref;
+
+	ref = find_vma(mm, vma->vm_start);
+	if (ref) {
+		/*
+		 * Ok we found VMA in the other memory map. So lets check
+		 * whether this is really the VMA we are referencing to.
+		 */
+		if (ref->vm_start == vma->vm_start &&
+		    ref->vm_end == vma->vm_end)
+			/* This is an exact match. */
+			return ref;
+
+		if (ref->vm_start != vma->vm_start &&
+		    ref->vm_end == vma->vm_end &&
+		    vma->vm_flags & VM_GROWSDOWN)
+			/* This might be the stack VMA. */
+			return ref;
+	}
+
+	return NULL;
+}
+
+/**
+ * Translate a bit field with O_* bits into fs-like bit field with MAY_* bits.
+ **/
+static inline int __build_vas_access_type(int acc_type)
+{
+	/* We are only interested in access modes. */
+	acc_type &= O_ACCMODE;
+
+	if (acc_type == O_RDONLY)
+		return MAY_READ;
+	else if (acc_type == O_WRONLY)
+		return MAY_WRITE;
+	else if (acc_type == O_RDWR)
+		return MAY_READ | MAY_WRITE;
+
+	return -1;
+}
+
+static inline int __check_permission(kuid_t uid, kgid_t gid, umode_t mode,
+				     int type)
+{
+	kuid_t cur_uid = current_uid();
+
+	/* root can do anything with a VAS. */
+	if (unlikely(uid_eq(cur_uid, GLOBAL_ROOT_UID)))
+		return 0;
+
+	if (likely(uid_eq(cur_uid, uid)))
+		mode >>= 6;
+	else if (in_group_p(gid))
+		mode >>= 3;
+
+	if ((type & ~mode & (MAY_READ | MAY_WRITE)) == 0)
+		return 0;
+	return -EACCES;
+}
+
+/**
+ * Copy a vm_area from one memory map into another one.
+ *
+ * Requires that the semaphores of the destination memory maps is taken in
+ * write-mode and the one of the source memory map at least in read-mode.
+ *
+ * @param[in] src_mm:	The memory map to which the vm_area belongs that should
+ *			be copied.
+ * @param[in] src_vma:	The vm_area that should be copied.
+ * @param[in] dst_mm:	The memory map to which the vm_area should be copied.
+ * @param[in] vm_flags:	The vm_flags that should be used for the new vm_area.
+ *
+ * @returns:		A pointer to the new vm_area on success, NULL
+ *			otherwise.
+ **/
+static inline
+struct vm_area_struct *__copy_vm_area(struct mm_struct *src_mm,
+				      struct vm_area_struct *src_vma,
+				      struct mm_struct *dst_mm,
+				      unsigned long vm_flags)
+{
+	struct vm_area_struct *vma, *prev;
+	struct rb_node **rb_link, *rb_parent;
+	int ret;
+
+	pr_vas_debug("Copying VMA - addr: %#lx - %#lx - to %p\n",
+		     src_vma->vm_start, src_vma->vm_end, dst_mm);
+
+	ret = find_vma_links(dst_mm, src_vma->vm_start, src_vma->vm_end,
+			     &prev, &rb_link, &rb_parent);
+	if (ret != 0) {
+		pr_vas_debug("Could not map VMA in the new memory map because of a conflict with a different mapping\n");
+		return NULL;
+	}
+
+	vma = __new_vm_area();
+	*vma = *src_vma;
+
+	INIT_LIST_HEAD(&vma->anon_vma_chain);
+	ret = vma_dup_policy(src_vma, vma);
+	if (ret != 0)
+		goto out_free_vma;
+	ret = anon_vma_clone(vma, src_vma);
+	if (ret != 0)
+		goto out_free_vma;
+	vma->vm_mm = dst_mm;
+	vma->vm_flags = vm_flags;
+	vma_set_page_prot(vma);
+	vma->vm_next = vma->vm_prev = NULL;
+	if (vma->vm_file)
+		get_file(vma->vm_file);
+	if (vma->vm_ops && vma->vm_ops->open)
+		vma->vm_ops->open(vma);
+	vma->vas_last_update = src_vma->vas_last_update;
+
+	vma_link(dst_mm, vma, prev, rb_link, rb_parent);
+
+	vm_stat_account(dst_mm, vma->vm_flags, vma_pages(vma));
+	if (unlikely(dup_page_range(dst_mm, vma, src_mm, src_vma)))
+		pr_vas_debug("Failed to copy page table for VMA %p from %p\n",
+			     vma, src_vma);
+
+	return vma;
+
+out_free_vma:
+	__delete_vm_area(vma);
+	return NULL;
+}
+
+/**
+ * Remove a vm_area from a given memory map.
+ *
+ * Requires that the semaphores of the memory map is taken in write-mode.
+ *
+ * @param mm:		The memory map from which the vm_area should be
+ *			removed.
+ * @param vma:		The vm_area that should be removed.
+ *
+ * @returns:		0 on success, -ERRNO otherwise.
+ **/
+static inline int __remove_vm_area(struct mm_struct *mm,
+				   struct vm_area_struct *vma)
+{
+	pr_vas_debug("Removing VMA - addr: %#lx - %#lx - from %p\n",
+		     vma->vm_start, vma->vm_end, mm);
+
+	return do_munmap(mm, vma->vm_start, vma->vm_end - vma->vm_start);
+}
+
+/**
+ * Update the information of a vm_area in one particular memory map with the
+ * information of the corresponding one in another memory map.
+ *
+ * Requires that the semaphores of both memory maps are taken in write-mode.
+ *
+ * @param[in] src_mm:	The memory map to which the vm_area belongs from which
+ *			the information should be copied.
+ * @param[in] src_vma:	The vm_area from which the information should be
+ *			copied.
+ * @param[in] dst_mm:	The memory map to which the vm_area belongs to which
+ *			the information should be copied.
+ * @param[in] dst_vma:	The vm_area that should be updated if already known,
+ *			otherwise this can be NULL and will be looked up in the
+ *			destination memory map.
+ *
+ * @returns:		A pointer to the updated vm_area on success, NULL
+ *			otherwise.
+ **/
+static inline
+struct vm_area_struct *__update_vm_area(struct mm_struct *src_mm,
+					struct vm_area_struct *src_vma,
+					struct mm_struct *dst_mm,
+					struct vm_area_struct *dst_vma)
+{
+	pr_vas_debug("Updating VMA - addr: %#lx - %#lx - in %p\n",
+		     src_vma->vm_start, src_vma->vm_end, dst_mm);
+
+	/* Lookup the destination vm_area if not yet known. */
+	if (!dst_vma)
+		dst_vma = vas_find_reference(dst_mm, src_vma);
+
+	if (!dst_vma) {
+		pr_vas_debug("Cannot find corresponding memory region in destination memory map -- Abort\n");
+		dst_vma = NULL;
+	} else if (ktime_compare(src_vma->vas_last_update,
+				 dst_vma->vas_last_update) == 0) {
+		pr_vas_debug("Memory region is unchanged -- Skip\n");
+	} else if (ktime_compare(src_vma->vas_last_update,
+				 dst_vma->vas_last_update) == -1) {
+		pr_vas_debug("Memory region is stale (%lld vs %lld)-- Abort\n",
+			     src_vma->vas_last_update,
+			     dst_vma->vas_last_update);
+		dst_vma = NULL;
+	} else if (src_vma->vm_start != dst_vma->vm_start ||
+		   src_vma->vm_end != dst_vma->vm_end) {
+		/*
+		 * The VMA changed completely. We have to represent this change
+		 * in the destination memory region.
+		 */
+		struct mm_struct *orig_vas_ref = dst_vma->vas_reference;
+		unsigned long orig_vm_flags = dst_vma->vm_flags;
+
+		if (__remove_vm_area(dst_mm, dst_vma) != 0) {
+			dst_vma = NULL;
+			goto out;
+		}
+
+		dst_vma = __copy_vm_area(src_mm, src_vma, dst_mm,
+					 orig_vm_flags);
+		if (!dst_vma)
+			goto out;
+
+		dst_vma->vas_reference = orig_vas_ref;
+	} else {
+		/*
+		 * The VMA itself did not change. However, mappings might have
+		 * changed. So at least update the page table entries belonging
+		 * to the VMA in the destination memory region.
+		 */
+		if (unlikely(dup_page_range(dst_mm, dst_vma, src_mm, src_vma)))
+			pr_vas_debug("Cannot update page table entries\n");
+
+		dst_vma->vas_last_update = src_vma->vas_last_update;
+	}
+
+out:
+	return dst_vma;
+}
+
+/**
+ * Merge the VAS' parts of the memory map into the attached-VAS memory map.
+ *
+ * Requires that the VAS is already locked.
+ *
+ * @param[in] avas:	The pointer to the attached-VAS data structure that
+ *			contains all the information for this attachment.
+ * @param[in] vas:	The pointer to the VAS of which the memory map should
+ *			be merged.
+ * @param[in] type:	The type of attaching (see vas_attach for more
+ *			information).
+ *
+ * @returns:		0 on success, -ERRNO otherwise.
+ **/
+static int vas_merge(struct att_vas *avas, struct vas *vas, int type)
+{
+	struct vm_area_struct *vma, *new_vma;
+	struct mm_struct *vas_mm, *avas_mm;
+	int ret;
+
+	vas_mm = vas->mm;
+	avas_mm = avas->mm;
+
+	dump_memory_map("Before VAS MM", vas_mm);
+
+	if (down_write_killable(&avas_mm->mmap_sem))
+		return -EINTR;
+	down_read_nested(&vas_mm->mmap_sem, SINGLE_DEPTH_NESTING);
+
+	/* Try to copy all VMAs of the VAS into the AS of the attached-VAS. */
+	for (vma = vas_mm->mmap; vma; vma = vma->vm_next) {
+		unsigned long merged_vm_flags = vma->vm_flags;
+
+		pr_vas_debug("Merging a VAS memory region (%#lx - %#lx)\n",
+			     vma->vm_start, vma->vm_end);
+
+		/*
+		 * Remove the writable bit from the vm_flags if the VAS is
+		 * attached only readable.
+		 */
+		if (!(type & MAY_WRITE))
+			merged_vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
+
+		new_vma = __copy_vm_area(vas_mm, vma, avas_mm,
+					 merged_vm_flags);
+		if (!new_vma) {
+			pr_vas_debug("Failed to merge a VAS memory region (%#lx - %#lx)\n",
+				     vma->vm_start, vma->vm_end);
+			ret = -EFAULT;
+			goto out_unlock;
+		}
+
+		/*
+		 * Remember for the VMA that we just added it to the
+		 * attached-VAS that it actually belongs to the VAS.
+		 */
+		new_vma->vas_reference = vas_mm;
+	}
+
+	ret = 0;
+
+out_unlock:
+	up_read(&vas_mm->mmap_sem);
+	up_write(&avas_mm->mmap_sem);
+
+	dump_memory_map("After VAS MM", vas_mm);
+	dump_memory_map("After Attached-VAS MM", avas_mm);
+
+	return ret;
+}
+
+/**
+ * Unmerge the VAS-related parts of an attached-VAS memory map back into the
+ * VAS' memory map.
+ *
+ * Requires that the VAS is already locked.
+ *
+ * @param[in] avas:	The pointer to the attached-VAS data structure that
+ *			contains all the information for this attachment.
+ * @param[in] vas:	The pointer to the VAS for which the memory map should
+ *			be updated again.
+ *
+ * @returns:		0 on success, -ERRNO otherwise.
+ **/
+static int vas_unmerge(struct att_vas *avas, struct vas *vas)
+{
+	struct vm_area_struct *vma, *next;
+	struct mm_struct *vas_mm, *avas_mm;
+	int ret;
+
+	vas_mm = vas->mm;
+	avas_mm = avas->mm;
+
+	dump_memory_map("Before Attached-VAS MM", avas_mm);
+	dump_memory_map("Before VAS MM", vas_mm);
+
+	if (down_write_killable(&avas_mm->mmap_sem))
+		return -EINTR;
+	down_write_nested(&vas_mm->mmap_sem, SINGLE_DEPTH_NESTING);
+
+	/* Update all VMAs of the VAS if they changed in the attached-VAS. */
+	for (vma = avas_mm->mmap, next = next_vma_safe(vma); vma;
+	     vma = next, next = next_vma_safe(next)) {
+		struct mm_struct *ref_mm = vma->vas_reference;
+
+		if (!ref_mm) {
+			struct vm_area_struct *new_vma;
+
+			/*
+			 * This is a VMA which was created while the VAS was
+			 * attached to the process and which is not yet existent
+			 * in the VAS. Copy it into the VAS' mm_struct.
+			 */
+			pr_vas_debug("Unmerging a new VAS memory region (%#lx - %#lx)\n",
+				     vma->vm_start, vma->vm_end);
+
+			new_vma = __copy_vm_area(avas_mm, vma, vas_mm,
+						 vma->vm_flags);
+			if (!new_vma) {
+				pr_vas_debug("Failed to unmerge a new VAS memory region (%#lx - %#lx)\n",
+					     vma->vm_start, vma->vm_end);
+				ret = -EFAULT;
+				goto out_unlock;
+			}
+
+			new_vma->vas_reference = NULL;
+		} else {
+			struct vm_area_struct *upd_vma;
+
+			/*
+			 * This VMA was previously copied into the memory map
+			 * when the VAS was attached to the process. So check if
+			 * we need to update the corresponding VMA in the VAS'
+			 * memory map.
+			 */
+			pr_vas_debug("Unmerging an existing VAS memory region (%#lx - %#lx)\n",
+				     vma->vm_start, vma->vm_end);
+
+			upd_vma = __update_vm_area(avas_mm, vma, vas_mm, NULL);
+			if (!upd_vma) {
+				pr_vas_debug("Failed to unmerge a VAS memory region (%#lx - %#lx)\n",
+					     vma->vm_start, vma->vm_end);
+				ret = -EFAULT;
+				goto out_unlock;
+			}
+		}
+
+		/* Remove the current VMA from the attached-VAS memory map. */
+		__remove_vm_area(avas_mm, vma);
+	}
+
+	ret = 0;
+
+out_unlock:
+	up_write(&vas_mm->mmap_sem);
+	up_write(&avas_mm->mmap_sem);
+
+	dump_memory_map("After VAS MM", vas_mm);
+
+	return ret;
+}
+
+/**
+ * Merge the task's parts of the memory map into the attached-VAS memory map.
+ *
+ * @param[in] avas:	The pointer to the attached-VAS data structure that
+ *			contains all the information for this attachment.
+ * @param[in] tsk:	The pointer to the task of which the memory map
+ *			should be merged.
+ *
+ * @returns:		0 on success, -ERRNO otherwise.
+ **/
+static int task_merge(struct att_vas *avas, struct task_struct *tsk)
+{
+	struct vm_area_struct *vma, *new_vma;
+	struct mm_struct *avas_mm, *tsk_mm;
+	int ret;
+
+	tsk_mm = tsk->original_mm;
+	avas_mm = avas->mm;
+
+	dump_memory_map("Before Task MM", tsk_mm);
+	dump_memory_map("Before Attached-VAS MM", avas_mm);
+
+	if (down_write_killable(&avas_mm->mmap_sem))
+		return -EINTR;
+	down_read_nested(&tsk_mm->mmap_sem, SINGLE_DEPTH_NESTING);
+
+	/*
+	 * Try to copy all necessary memory regions from the task's memory
+	 * map to the attached-VAS memory map.
+	 */
+	for (vma = tsk_mm->mmap; vma; vma = vma->vm_next) {
+		pr_vas_debug("Merging a task memory region (%#lx - %#lx)\n",
+			     vma->vm_start, vma->vm_end);
+
+		new_vma = __copy_vm_area(tsk_mm, vma, avas_mm, vma->vm_flags);
+		if (!new_vma) {
+			pr_vas_debug("Failed to merge a task memory region (%#lx - %#lx)\n",
+				     vma->vm_start, vma->vm_end);
+			ret = -EFAULT;
+			goto out_unlock;
+		}
+
+		/*
+		 * Remember for the VMA that we just added it to the
+		 * attached-VAS that it actually belongs to the task.
+		 */
+		new_vma->vas_reference = tsk_mm;
+	}
+
+	ret = 0;
+
+out_unlock:
+	up_read(&tsk_mm->mmap_sem);
+	up_write(&avas_mm->mmap_sem);
+
+	dump_memory_map("After Task MM", tsk_mm);
+	dump_memory_map("After Attached-VAS MM", avas_mm);
+
+	return ret;
+}
+
+/**
+ * Unmerge task-related parts of an attached-VAS memory map back into the
+ * task's memory map.
+ *
+ * @param[in] avas:	The pointer to the attached-VAS data structure that
+ *			contains all the information for this attachment.
+ * @param[in] tsk:	The pointer to the task for which the memory map
+ *			should be updated again.
+ *
+ * @returns:		0 on success, -ERRNO otherwise.
+ **/
+static int task_unmerge(struct att_vas *avas, struct task_struct *tsk)
+{
+	struct vm_area_struct *vma, *next;
+	struct mm_struct *avas_mm, *tsk_mm;
+
+	tsk_mm = tsk->original_mm;
+	avas_mm = avas->mm;
+
+	dump_memory_map("Before Task MM", tsk_mm);
+	dump_memory_map("Before Attached-VAS MM", avas_mm);
+
+	if (down_write_killable(&avas_mm->mmap_sem))
+		return -EINTR;
+
+	/*
+	 * Since we are always syncing with the task's memory map at every
+	 * switch, unmerging the task's memory regions basically just means
+	 * removing them.
+	 */
+	for (vma = avas_mm->mmap, next = next_vma_safe(vma); vma;
+	     vma = next, next = next_vma_safe(next)) {
+		struct mm_struct *ref_mm = vma->vas_reference;
+
+		if (ref_mm != tsk_mm) {
+			pr_vas_debug("Skipping memory region (%#lx - %#lx) during task unmerging\n",
+				     vma->vm_start, vma->vm_end);
+			continue;
+		}
+
+		pr_vas_debug("Unmerging a task memory region (%#lx - %#lx)\n",
+			     vma->vm_start, vma->vm_end);
+
+		/* Remove the current VMA from the attached-VAS memory map. */
+		__remove_vm_area(avas_mm, vma);
+	}
+
+	up_write(&avas_mm->mmap_sem);
+
+	dump_memory_map("After Task MM", tsk_mm);
+	dump_memory_map("After Attached-VAS MM", avas_mm);
+
+	return 0;
+}
+
+/**
+ * Attach a VAS to a task -- update internal information ONLY
+ *
+ * Requires that the VAS is already locked.
+ *
+ * @param[in] avas:	The pointer to the attached-VAS data structure
+ *			containing all the information of this attaching.
+ * @param[in] tsk:	The pointer to the task to which the VAS should be
+ *			attached.
+ * @param[in] vas:	The pointer to the VAS which should be attached.
+ *
+ * @returns:		0 on succes, -ERRNO otherwise.
+ **/
+static int __vas_attach(struct att_vas *avas, struct task_struct *tsk,
+			struct vas *vas)
+{
+	int ret;
+
+	/* Before doing anything, synchronize the RSS-stat of the task. */
+	sync_mm_rss(tsk->mm);
+
+	/*
+	 * Try to acquire the VAS share with the proper type. This will ensure
+	 * that the different sharing possibilities of VAS are respected.
+	 */
+	if (!vas_take_share(avas->type, vas)) {
+		pr_vas_debug("VAS is already attached exclusively\n");
+		return -EBUSY;
+	}
+
+	ret = vas_merge(avas, vas, avas->type);
+	if (ret != 0)
+		goto out_put_share;
+
+	ret = task_merge(avas, tsk);
+	if (ret != 0)
+		goto out_put_share;
+
+	vas->refcount++;
+
+	return 0;
+
+out_put_share:
+	vas_put_share(avas->type, vas);
+	return ret;
+}
+
+/**
+ * Detach a VAS from a task -- update internal information ONLY
+ *
+ * Requires that the VAS is already locked.
+ *
+ * @param[in] avas:	The pointer to the attached-VAS data structure
+ *			containing all the information of this attaching.
+ * @param[in] tsk:	The pointer to the task from which the VAS should be
+ *			detached.
+ * @param[in] vas:	The pointer to the VAS which should be detached.
+ *
+ * @returns:		0 on success, -ERRNO otherwise.
+ **/
+static int __vas_detach(struct att_vas *avas, struct task_struct *tsk,
+			struct vas *vas)
+{
+	int ret;
+
+	/* Before detaching the VAS, synchronize the RSS-stat of the task. */
+	sync_mm_rss(tsk->mm);
+
+	ret = task_unmerge(avas, tsk);
+	if (ret != 0)
+		return ret;
+
+	ret = vas_unmerge(avas, vas);
+	if (ret != 0)
+		return ret;
+
+	vas->refcount--;
+
+	/* We unlock the VAS here to ensure our sharing properties. */
+	vas_put_share(avas->type, vas);
+
+	return 0;
+}
+
+static int __sync_from_task(struct mm_struct *avas_mm, struct mm_struct *tsk_mm)
+{
+	struct vm_area_struct *vma;
+	int ret;
+
+	ret = 0;
+	for (vma = tsk_mm->mmap; vma; vma = vma->vm_next) {
+		struct vm_area_struct *ref;
+
+		ref = vas_find_reference(avas_mm, vma);
+		if (!ref) {
+			ref = __copy_vm_area(tsk_mm, vma, avas_mm,
+					     vma->vm_flags);
+
+			if (!ref) {
+				pr_vas_debug("Failed to copy memory region (%#lx - %#lx) during task sync\n",
+					     vma->vm_start, vma->vm_end);
+				ret = -EFAULT;
+				break;
+			}
+
+			/*
+			 * Remember for the newly added memory region where we
+			 * copied it from.
+			 */
+			ref->vas_reference = tsk_mm;
+		} else {
+			ref = __update_vm_area(tsk_mm, vma, avas_mm, ref);
+			if (!ref) {
+				pr_vas_debug("Failed to update memory region (%#lx - %#lx) during task sync\n",
+					     vma->vm_start, vma->vm_end);
+				ret = -EFAULT;
+				break;
+			}
+		}
+	}
+
+	return ret;
+}
+
+static int __sync_to_task(struct mm_struct *avas_mm, struct mm_struct *tsk_mm)
+{
+	struct vm_area_struct *vma;
+	int ret;
+
+	ret = 0;
+	for (vma = avas_mm->mmap; vma; vma = vma->vm_next) {
+		if (vma->vas_reference != tsk_mm) {
+			pr_vas_debug("Skip unrelated memory region (%#lx - %#lx) during task resync\n",
+				     vma->vm_start, vma->vm_end);
+		} else {
+			struct vm_area_struct *ref;
+
+			ref = __update_vm_area(avas_mm, vma, tsk_mm, NULL);
+			if (!ref) {
+				pr_vas_debug("Failed to update memory region (%#lx - %#lx) during task resync\n",
+					     vma->vm_start, vma->vm_end);
+				ret = -EFAULT;
+				break;
+			}
+		}
+	}
+
+	return ret;
+}
+
+/**
+ * Synchronize all task related parts of the memory maps to reflect the latest
+ * state.
+ *
+ * @param[in] avas_mm:	The memory map of the attached-VAS.
+ * @param[in] tsk_mm:	The memory map of the task.
+ * @param[in] dir:	The direction in which the sync should happen:
+ *				1 => tsk -> avas
+ *			       -1 => avas -> tsk
+ *
+ * @returns:		0 on success, -ERRNO otherwise.
+ **/
+static int synchronize_task(struct mm_struct *avas_mm, struct mm_struct *tsk_mm,
+			    int dir)
+{
+	struct mm_struct *src_mm, *dst_mm;
+	int ret;
+
+	src_mm = dir == 1 ? tsk_mm : avas_mm;
+	dst_mm = dir == 1 ? avas_mm : tsk_mm;
+
+	/*
+	 * We have nothing to do if nothing has changed the memory maps since
+	 * the last sync.
+	 */
+	if (ktime_compare(src_mm->vas_last_update,
+			  dst_mm->vas_last_update) == 0) {
+		pr_vas_debug("Nothing to do during switch, memory map is up-to-date\n");
+		return 0;
+	}
+
+	pr_vas_debug("Synchronize memory map from %s to %s\n",
+		     dir == 1 ? "Task" : "Attached-VAS",
+		     dir == 1 ? "Attached-VAS" : "Task");
+
+	dump_memory_map("Before Task MM", tsk_mm);
+	dump_memory_map("Before Attached-VAS MM", avas_mm);
+
+	if (down_write_killable(&dst_mm->mmap_sem))
+		return -EINTR;
+	down_read_nested(&src_mm->mmap_sem, SINGLE_DEPTH_NESTING);
+
+	if (dir == 1)
+		ret = __sync_from_task(avas_mm, tsk_mm);
+	else
+		ret = __sync_to_task(avas_mm, tsk_mm);
+
+	if (ret != 0)
+		goto out_unlock;
+
+	/*
+	 * Also update all the information where the different memory regions
+	 * such as code, data and stack start and end.
+	 */
+	dst_mm->start_code = src_mm->start_code;
+	dst_mm->end_code = src_mm->end_code;
+	dst_mm->start_data = src_mm->start_data;
+	dst_mm->end_data = src_mm->end_data;
+	dst_mm->start_brk = src_mm->start_brk;
+	dst_mm->brk = src_mm->brk;
+	dst_mm->start_stack = src_mm->start_stack;
+	dst_mm->arg_start = src_mm->arg_start;
+	dst_mm->arg_end = src_mm->arg_end;
+	dst_mm->env_start = src_mm->env_end;
+	dst_mm->env_end = src_mm->env_end;
+	dst_mm->task_size = src_mm->task_size;
+
+	dst_mm->vas_last_update = src_mm->vas_last_update;
+
+	ret = 0;
+
+out_unlock:
+	up_read(&src_mm->mmap_sem);
+	up_write(&dst_mm->mmap_sem);
+
+	dump_memory_map("After Task MM", tsk_mm);
+	dump_memory_map("After Attached-VAS MM", avas_mm);
+
+	return ret;
+}
+
+/**
+ * Properly update and setup the memory maps before performing the actual
+ * switch to a different address space.
+ *
+ * @param[in] from:	The attached-VAS that we are switching away from, or
+ *			NULL if we are switching away from the task's original
+ *			AS.
+ * @param[in] to:	The attached-VAS that we are switching to, or NULL if
+ *			we are switching to the task's original AS.
+ * @param[in] tsk:	The pointer to the task for which the switch should
+ *			happen.
+ *
+ * @returns:		0 on success, -ERRNO otherwise.
+ **/
+static int vas_prepare_switch(struct att_vas *from, struct att_vas *to,
+			      struct task_struct *tsk)
+{
+	int ret;
+
+	/* Before doing anything, synchronize the RSS-stat of the task. */
+	sync_mm_rss(tsk->mm);
+
+	/*
+	 * When switching away from a VAS we have to first update the task's
+	 * memory map so that it is always up-to-date
+	 */
+	if (from) {
+		ret = synchronize_task(from->mm, tsk->original_mm, -1);
+		if (ret != 0)
+			return ret;
+	}
+
+	/*
+	 * When switching to a VAS we have to update the VAS' memory map so that
+	 * it contains all the up to date information of the task.
+	 */
+	if (to) {
+		ret = synchronize_task(to->mm, tsk->original_mm, 1);
+		if (ret != 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+/**
+ * Switch a task's address space to the given one.
+ *
+ * @param[in] tsk:	The pointer to the task for which the AS should be
+ *			switched.
+ * @param[in] vid:	The ID of the VAS to which the task should switch, or
+ *			0 if the task should switch to its original AS.
+ *
+ * @returns:		0 on success, -ERRNO otherwise.
+ **/
+static int __vas_switch(struct task_struct *tsk, int vid)
+{
+	struct vas_context *ctx = tsk->vas_ctx;
+	struct att_vas *next_avas, *old_avas;
+	struct mm_struct *nextmm, *oldmm;
+	bool is_attached;
+	int ret;
+
+	vas_context_lock(ctx);
+
+	if (vid == 0) {
+		pr_vas_debug("Switching to original mm\n");
+		next_avas = NULL;
+		nextmm = tsk->original_mm;
+	} else {
+		is_attached = false;
+		list_for_each_entry(next_avas, &ctx->vases, tsk_link) {
+			if (next_avas->vas->id == vid) {
+				is_attached = true;
+				break;
+			}
+		}
+		if (!is_attached) {
+			ret = -EINVAL;
+			goto out_unlock;
+		}
+
+		pr_vas_debug("Switching to VAS - name: %s\n",
+			     next_avas->vas->name);
+		nextmm = next_avas->mm;
+	}
+
+	if (tsk->active_vas == 0) {
+		pr_vas_debug("Switching from original mm\n");
+		old_avas = NULL;
+		oldmm = tsk->active_mm;
+	} else {
+		is_attached = false;
+		list_for_each_entry(old_avas, &ctx->vases, tsk_link) {
+			if (old_avas->vas->id == tsk->active_vas) {
+				is_attached = true;
+				break;
+			}
+		}
+		if (!is_attached) {
+			WARN(!is_attached, "Could not find the task's active VAS.\n");
+			old_avas = NULL;
+			oldmm = tsk->mm;
+		} else {
+			pr_vas_debug("Switching from VAS - name: %s\n",
+				     old_avas->vas->name);
+			oldmm = old_avas->mm;
+		}
+	}
+
+	vas_context_unlock(ctx);
+
+	/* Check if we are already running on the specified mm. */
+	if (oldmm == nextmm)
+		return 0;
+
+	/*
+	 * Prepare the mm_struct data structure we are switching to. Update the
+	 * mappings for stack, code, data and other recent changes.
+	 */
+	ret = vas_prepare_switch(old_avas, next_avas, tsk);
+	if (ret != 0) {
+		pr_vas_debug("Failed to prepare memory maps for switch\n");
+		return ret;
+	}
+
+	task_lock(tsk);
+
+	/* Perform the actual switch in the new address space. */
+	vmacache_flush(tsk);
+	switch_mm(oldmm, nextmm, tsk);
+
+	tsk->mm = nextmm;
+	tsk->active_mm = nextmm;
+	tsk->active_vas = vid;
+
+	task_unlock(tsk);
+
+	return 0;
+
+out_unlock:
+	vas_context_unlock(ctx);
+
+	return ret;
+}
+
+
+/***
+ * Externally visible functions
+ ***/
+
+int vas_create(const char *name, umode_t mode)
+{
+	struct vas *vas;
+	int ret;
+
+	if (!name)
+		return -EINVAL;
+
+	if (vas_find(name) > 0)
+		return -EEXIST;
+
+	pr_vas_debug("Creating a new VAS - name: %s\n", name);
+
+	/* Allocate and initialize the VAS. */
+	vas = __new_vas();
+	if (!vas)
+		return -ENOMEM;
+
+	if (strscpy(vas->name, name, VAS_MAX_NAME_LENGTH) < 0) {
+		ret = -EINVAL;
+		goto out_free;
+	}
+
+	mutex_init(&vas->mtx);
+
+	ret = init_vas_mm(vas);
+	if (ret != 0)
+		goto out_free;
+
+	vas->refcount = 0;
+
+	INIT_LIST_HEAD(&vas->attaches);
+	spin_lock_init(&vas->share_lock);
+	vas->sharing = 0;
+
+	vas->mode = mode & 0666;
+	vas->uid = current_uid();
+	vas->gid = current_gid();
+
+	ret = vas_insert(vas);
+	if (ret != 0)
+		/*
+		 * We don't need to do anything here. @vas_insert will care
+		 * for the deletion of the VAS before returning with an error.
+		 */
+		return ret;
+
+	return vas->id;
+
+out_free:
+	__delete_vas(vas);
+	return ret;
+}
+EXPORT_SYMBOL(vas_create);
+
+struct vas *vas_get(int vid)
+{
+	return vas_lookup(vid);
+}
+EXPORT_SYMBOL(vas_get);
+
+void vas_put(struct vas *vas)
+{
+	if (!vas)
+		return;
+
+	__vas_put(vas);
+}
+EXPORT_SYMBOL(vas_put);
+
+int vas_find(const char *name)
+{
+	struct vas *vas;
+
+	vas = vas_lookup_by_name(name);
+	if (vas) {
+		int vid = vas->id;
+
+		vas_put(vas);
+		return vid;
+	}
+
+	return -ESRCH;
+}
+EXPORT_SYMBOL(vas_find);
+
+int vas_delete(int vid)
+{
+	struct vas *vas;
+	int ret;
+
+	vas = vas_get(vid);
+	if (!vas)
+		return -EINVAL;
+
+	pr_vas_debug("Deleting VAS - name: %s\n", vas->name);
+
+	vas_lock(vas);
+
+	if (vas->refcount != 0) {
+		ret = -EBUSY;
+		goto out_unlock;
+	}
+
+	/* The user needs write permission to the VAS to delete it. */
+	ret = __check_permission(vas->uid, vas->gid, vas->mode, MAY_WRITE);
+	if (ret != 0) {
+		pr_vas_debug("User doesn't have the appropriate permissions to delete the VAS\n");
+		goto out_unlock;
+	}
+
+	vas_unlock(vas);
+
+	vas_remove(vas);
+	vas_put(vas);
+
+	return 0;
+
+out_unlock:
+	vas_unlock(vas);
+	vas_put(vas);
+
+	return ret;
+}
+EXPORT_SYMBOL(vas_delete);
+
+int vas_attach(struct task_struct *tsk, int vid, int type)
+{
+	struct vas_context *ctx = tsk->vas_ctx;
+	struct vas *vas;
+	struct att_vas *avas;
+	int ret;
+
+	type &= (MAY_READ | MAY_WRITE);
+
+	if (!tsk)
+		return -EINVAL;
+
+	vas = vas_get(vid);
+	if (!vas)
+		return -EINVAL;
+
+	pr_vas_debug("Attaching VAS - name: %s - to task - pid: %d - %s\n",
+		     vas->name, tsk->pid, access_type_str(type));
+
+	vas_lock(vas);
+
+	/*
+	 * Before we can attach the VAS to the task we first have to make some
+	 * sanity checks.
+	 */
+
+	/*
+	 * 1: Check that the user has adequate permissions to attach the VAS in
+	 * the given way.
+	 */
+	ret = __check_permission(vas->uid, vas->gid, vas->mode, type);
+	if (ret != 0) {
+		pr_vas_debug("User doesn't have the appropriate permissions to attach the VAS\n");
+		goto out_unlock;
+	}
+
+	/*
+	 * 2: Check if this VAS is already attached to a task. If yes check if
+	 * it is a different task or the one we want to attach currently.
+	 */
+	list_for_each_entry(avas, &vas->attaches, vas_link) {
+		if (avas->tsk == tsk) {
+			pr_vas_debug("VAS is already attached to the task\n");
+			ret = 0;
+			goto out_unlock;
+		}
+	}
+
+	/* 3: Check if we reached the maximum number of shares for this VAS. */
+	if (vas->refcount == VAS_MAX_SHARES) {
+		ret = -EBUSY;
+		goto out_unlock;
+	}
+
+	/*
+	 * All sanity checks are done. We can now safely attach the VAS to the
+	 * given task.
+	 */
+
+	/* Allocate and initialize the attached-VAS data structure. */
+	avas = __new_att_vas();
+	if (!avas) {
+		ret = -ENOMEM;
+		goto out_unlock;
+	}
+
+	ret = init_att_vas_mm(avas, tsk);
+	if (ret != 0)
+		goto out_free_avas;
+
+	avas->vas = vas;
+	avas->tsk = tsk;
+	avas->type = type;
+
+	ret = __vas_attach(avas, tsk, vas);
+	if (ret != 0)
+		goto out_free_avas;
+
+	vas_context_lock(ctx);
+
+	list_add(&avas->tsk_link, &ctx->vases);
+	list_add(&avas->vas_link, &vas->attaches);
+
+	vas_context_unlock(ctx);
+
+	ret = 0;
+
+out_unlock:
+	vas_unlock(vas);
+	vas_put(vas);
+
+	return ret;
+
+out_free_avas:
+	__delete_att_vas(avas);
+	goto out_unlock;
+}
+EXPORT_SYMBOL(vas_attach);
+
+int vas_detach(struct task_struct *tsk, int vid)
+{
+	struct vas_context *ctx = tsk->vas_ctx;
+	struct vas *vas;
+	struct att_vas *avas;
+	bool is_attached;
+	int ret;
+
+	if (!tsk)
+		return -EINVAL;
+
+	task_lock(tsk);
+	vas_context_lock(ctx);
+
+	is_attached = false;
+	list_for_each_entry(avas, &ctx->vases, tsk_link) {
+		if (avas->vas->id == vid) {
+			is_attached = true;
+			break;
+		}
+	}
+	if (!is_attached) {
+		pr_vas_debug("VAS is not attached to the given task\n");
+		ret = -EINVAL;
+		goto out_unlock_tsk;
+	}
+
+	vas = avas->vas;
+
+	/*
+	 * Make sure that our reference to the VAS can not be removed while we
+	 * are currently working with it.
+	 */
+	__vas_get(vas);
+
+	pr_vas_debug("Detaching VAS - name: %s - from task - pid: %d\n",
+		     vas->name, tsk->pid);
+
+	/*
+	 * Before we can detach the VAS from the task we have to perform some
+	 * sanity checks.
+	 */
+
+	/*
+	 * 1: Check if the VAS we want to detach is currently the active VAS
+	 * because we must not detach this VAS. The user first has to switch
+	 * away.
+	 */
+	if (tsk->active_vas == vid) {
+		pr_vas_debug("VAS is currently in use by the task\n");
+		ret = -EBUSY;
+		goto out_put_vas;
+	}
+
+	/*
+	 * We are done with the sanity checks. It is now safe to detach the VAS
+	 * from the given task.
+	 */
+	list_del(&avas->tsk_link);
+
+	vas_context_unlock(ctx);
+	task_unlock(tsk);
+
+	vas_lock(vas);
+
+	list_del(&avas->vas_link);
+
+	ret = __vas_detach(avas, tsk, vas);
+	if (ret != 0)
+		goto out_reinsert;
+
+	__delete_att_vas(avas);
+
+	vas_unlock(vas);
+	__vas_put(vas);
+
+	return 0;
+
+out_reinsert:
+	vas_context_lock(ctx);
+
+	list_add(&avas->tsk_link, &ctx->vases);
+	list_add(&avas->vas_link, &vas->attaches);
+
+	vas_context_unlock(ctx);
+	vas_unlock(vas);
+	__vas_put(vas);
+
+	return ret;
+
+out_put_vas:
+	__vas_put(vas);
+
+out_unlock_tsk:
+	vas_context_unlock(ctx);
+	task_unlock(tsk);
+
+	return ret;
+}
+EXPORT_SYMBOL(vas_detach);
+
+int vas_switch(struct task_struct *tsk, int vid)
+{
+	if (!tsk)
+		return -EINVAL;
+
+	return __vas_switch(tsk, vid);
+}
+EXPORT_SYMBOL(vas_switch);
+
+int vas_getattr(int vid, struct vas_attr *attr)
+{
+	struct vas *vas;
+	struct user_namespace *ns = current_user_ns();
+
+	if (!attr)
+		return -EINVAL;
+
+	vas = vas_get(vid);
+	if (!vas)
+		return -EINVAL;
+
+	pr_vas_debug("Getting attributes for VAS - name: %s\n", vas->name);
+
+	vas_lock(vas);
+
+	memset(attr, 0, sizeof(struct vas_attr));
+	attr->mode = vas->mode;
+	attr->user = from_kuid(ns, vas->uid);
+	attr->group = from_kgid(ns, vas->gid);
+
+	vas_unlock(vas);
+	vas_put(vas);
+
+	return 0;
+}
+EXPORT_SYMBOL(vas_getattr);
+
+int vas_setattr(int vid, struct vas_attr *attr)
+{
+	struct vas *vas;
+	struct user_namespace *ns = current_user_ns();
+	int ret;
+
+	if (!attr)
+		return -EINVAL;
+
+	vas = vas_get(vid);
+	if (!vas)
+		return -EINVAL;
+
+	pr_vas_debug("Setting attributes for VAS - name: %s\n", vas->name);
+
+	vas_lock(vas);
+
+	/* The user needs write permission to change attributes for the VAS. */
+	ret = __check_permission(vas->uid, vas->gid, vas->mode, MAY_WRITE);
+	if (ret != 0) {
+		pr_vas_debug("User doesn't have the appropriate permissions to set attributes for the VAS\n");
+		goto out_unlock;
+	}
+
+	vas->mode = attr->mode & 0666;
+	vas->uid = make_kuid(ns, attr->user);
+	vas->gid = make_kgid(ns, attr->group);
+
+	ret = 0;
+
+out_unlock:
+	vas_unlock(vas);
+	vas_put(vas);
+
+	return ret;
+}
+EXPORT_SYMBOL(vas_setattr);
+
+void __init vas_init(void)
+{
+	/* Create the SLAB caches for our data structures. */
+	vas_cachep = KMEM_CACHE(vas, SLAB_PANIC|SLAB_NOTRACK);
+	att_vas_cachep = KMEM_CACHE(att_vas, SLAB_PANIC|SLAB_NOTRACK);
+	vas_context_cachep = KMEM_CACHE(vas_context, SLAB_PANIC|SLAB_NOTRACK);
+
+	/* Initialize the internal management data structures. */
+	idr_init(&vases);
+	spin_lock_init(&vases_lock);
+
+	/* Initialize the place holder variables. */
+	INVALID_VAS = __new_vas();
+
+	/* Initialize the VAS context of the init task. */
+	vas_clone(0, &init_task);
+}
+
+/*
+ * We need to use a postcore_initcall to initialize the sysfs directories,
+ * because the 'sys/kernel' directory will be initialized in a core_initcall.
+ * Hence, we have to queue the initialization of the VAS sysfs directories after
+ * this.
+ */
+static int __init vas_sysfs_init(void)
+{
+	/* Setup the sysfs base directories. */
+	vases_kset = kset_create_and_add("vas", NULL, kernel_kobj);
+	if (!vases_kset) {
+		pr_err("Failed to initialize the VAS sysfs directory\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+postcore_initcall(vas_sysfs_init);
+
+int vas_clone(int clone_flags, struct task_struct *tsk)
+{
+	int ret = 0;
+
+	struct vas_context *ctx;
+
+	if (clone_flags & CLONE_VM) {
+		ctx = current->vas_ctx;
+
+		pr_vas_debug("Copy VAS context (%p -- %d) for task - %p - from task - %p\n",
+			     ctx, ctx->refcount, tsk, current);
+
+		vas_context_lock(ctx);
+		ctx->refcount++;
+		vas_context_unlock(ctx);
+	} else {
+		pr_vas_debug("Create a new VAS context for task - %p\n",
+			     tsk);
+
+		ctx = __new_vas_context();
+		if (!ctx) {
+			ret = -ENOMEM;
+			goto out;
+		}
+
+		spin_lock_init(&ctx->lock);
+		ctx->refcount = 1;
+		INIT_LIST_HEAD(&ctx->vases);
+	}
+
+	tsk->vas_ctx = ctx;
+
+out:
+	return ret;
+}
+
+void vas_exit(struct task_struct *tsk)
+{
+	struct vas_context *ctx = tsk->vas_ctx;
+
+	if (tsk->active_vas != 0) {
+		int error;
+
+		pr_vas_debug("Switch to original MM before exit for task - %p\n",
+			     tsk);
+
+		error = __vas_switch(tsk, 0);
+		if (error != 0)
+			pr_alert("Switching back to original MM failed with %d\n",
+				 error);
+	}
+
+	pr_vas_debug("Exiting VAS context (%p -- %d) for task - %p\n", ctx,
+		     ctx->refcount, tsk);
+
+	vas_context_lock(ctx);
+
+	ctx->refcount--;
+	tsk->vas_ctx = NULL;
+
+	vas_context_unlock(ctx);
+
+	if (ctx->refcount == 0) {
+		/*
+		 * We have to clear this VAS context from all the VAS it has
+		 * attached before it is save to delete it. There is no need to
+		 * hold the look while doing this since we are the last one
+		 * having a reference to this particular VAS context.
+		 */
+		struct att_vas *avas, *s_avas;
+
+		list_for_each_entry_safe(avas, s_avas, &ctx->vases, tsk_link) {
+			struct vas *vas = avas->vas;
+			int error;
+
+			pr_vas_debug("Detaching VAS - name: %s - from exiting task - pid: %d\n",
+				     vas->name, tsk->pid);
+
+			/*
+			 * Make sure our reference to the VAS is not deleted
+			 * while we are currently working with it.
+			 */
+			__vas_get(vas);
+
+			vas_lock(vas);
+
+			error = __vas_detach(avas, tsk, vas);
+			if (error != 0)
+				pr_alert("Detaching VAS from task failed with %d\n",
+					 error);
+
+			list_del(&avas->tsk_link);
+			list_del(&avas->vas_link);
+			__delete_att_vas(avas);
+
+			vas_unlock(vas);
+			__vas_put(vas);
+		}
+
+		/*
+		 * All the attached VAS are detached. Now it is safe to remove
+		 * this VAS context.
+		 */
+		__delete_vas_context(ctx);
+
+		pr_vas_debug("Deleted VAS context\n");
+	}
+}
+
+/***
+ * System Calls
+ ***/
+
+SYSCALL_DEFINE2(vas_create, const char __user *, name, umode_t, mode)
+{
+	char vas_name[VAS_MAX_NAME_LENGTH];
+	int len;
+
+	if (!name)
+		return -EINVAL;
+
+	len = strlen(name);
+	if (len >= VAS_MAX_NAME_LENGTH)
+		return -EINVAL;
+
+	if (copy_from_user(vas_name, name, len) != 0)
+		return -EFAULT;
+
+	vas_name[len] = '\0';
+
+	return vas_create(name, mode);
+}
+
+SYSCALL_DEFINE1(vas_delete, int, vid)
+{
+	if (vid < 0)
+		return -EINVAL;
+
+	return vas_delete(vid);
+}
+
+SYSCALL_DEFINE1(vas_find, const char __user *, name)
+{
+	char vas_name[VAS_MAX_NAME_LENGTH];
+	int len;
+
+	if (!name)
+		return -EINVAL;
+
+	len = strlen(name);
+	if (len >= VAS_MAX_NAME_LENGTH)
+		return -EINVAL;
+
+	if (copy_from_user(vas_name, name, len) != 0)
+		return -EFAULT;
+
+	vas_name[len] = '\0';
+
+	return vas_find(name);
+}
+
+SYSCALL_DEFINE3(vas_attach, pid_t, pid, int, vid, int, type)
+{
+	struct task_struct *tsk;
+	int vas_acc_type;
+
+	if (pid < 0 || vid < 0)
+		return -EINVAL;
+
+	tsk = pid == 0 ? current : find_task_by_vpid(pid);
+	if (!tsk)
+		return -ESRCH;
+
+	vas_acc_type = __build_vas_access_type(type);
+	if (vas_acc_type == -1)
+		return -EINVAL;
+
+	return vas_attach(tsk, vid, vas_acc_type);
+}
+
+SYSCALL_DEFINE2(vas_detach, pid_t, pid, int, vid)
+{
+	struct task_struct *tsk;
+
+	if (pid < 0 || vid < 0)
+		return -EINVAL;
+
+	tsk = pid == 0 ? current : find_task_by_vpid(pid);
+	if (!tsk)
+		return -ESRCH;
+
+	return vas_detach(tsk, vid);
+}
+
+SYSCALL_DEFINE1(vas_switch, int, vid)
+{
+	struct task_struct *tsk = current;
+
+	if (vid < 0)
+		return -EINVAL;
+
+	return vas_switch(tsk, vid);
+}
+
+SYSCALL_DEFINE0(active_vas)
+{
+	struct task_struct *tsk = current;
+
+	return tsk->active_vas;
+}
+
+SYSCALL_DEFINE2(vas_getattr, int, vid, struct vas_attr __user *, uattr)
+{
+	struct vas_attr attr;
+	int ret;
+
+	if (vid < 0 || !uattr)
+		return -EINVAL;
+
+	ret = vas_getattr(vid, &attr);
+	if (ret != 0)
+		return ret;
+
+	if (copy_to_user(uattr, &attr, sizeof(struct vas_attr)) != 0)
+		return -EFAULT;
+
+	return 0;
+}
+
+SYSCALL_DEFINE2(vas_setattr, int, vid, struct vas_attr __user *, uattr)
+{
+	struct vas_attr attr;
+
+	if (vid < 0 || !uattr)
+		return -EINVAL;
+
+	if (copy_from_user(&attr, uattr, sizeof(struct vas_attr)) != 0)
+		return -EFAULT;
+
+	return vas_setattr(vid, &attr);
+}
-- 
2.12.0

--
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From - Thu Nov 08 21:39:43 2018
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From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: [RFC PATCH 12/13] mm/vas: Add lazy-attach support for first class virtual address spaces
Date: Mon, 13 Mar 2017 15:14:14 -0700
Lines: 471
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.aio.general/4947>

Until now, whenever a task attaches a first class virtual address space,
all the memory regions currently present in the task are replicated into
the first class virtual address space so that the task can continue
executing as if nothing has changed. However, this technique causes the
attach and detach operations to be very costly, since the whole memory map
of the task has to be duplicated.

Lazy-attaching on the other side uses a similar technique as it is done to
copy page tables during fork. Instead of completely duplicating the memory
map of the task together with its page tables, only a skeleton memory map
is created and then later filled with content when a page fault is
triggered when the process actually accesses the memory regions. The big
advantage is, that unnecessary memory regions are not duplicated at all,
but just those that the process actually uses while executing inside the
first class virtual address space. The only memory region which is always
duplicated during the attach-operation is the code memory section, because
this memory region is always necessary for execution and saves us one page
fault later during the process execution.

Signed-off-by: Till Smejkal <till.smejkal@gmail.com>
---
 include/linux/mm_types.h |   1 +
 include/linux/vas.h      |  26 ++++++++
 mm/Kconfig               |  18 ++++++
 mm/memory.c              |   5 ++
 mm/vas.c                 | 164 ++++++++++++++++++++++++++++++++++++++++++-----
 5 files changed, 197 insertions(+), 17 deletions(-)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 82bf78ea83ee..65e04f14225d 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -362,6 +362,7 @@ struct vm_area_struct {
 #ifdef CONFIG_VAS
 	struct mm_struct *vas_reference;
 	ktime_t vas_last_update;
+	bool vas_attached;
 #endif
 };
 
diff --git a/include/linux/vas.h b/include/linux/vas.h
index 376b9fa1ee27..8682bfc86568 100644
--- a/include/linux/vas.h
+++ b/include/linux/vas.h
@@ -2,6 +2,7 @@
 #define _LINUX_VAS_H
 
 
+#include <linux/mm_types.h>
 #include <linux/sched.h>
 #include <linux/vas_types.h>
 
@@ -293,4 +294,29 @@ static inline int vas_exit(struct task_struct *tsk) { return 0; }
 
 #endif /* CONFIG_VAS */
 
+
+/***
+ * Management of the VAS lazy attaching
+ ***/
+
+#ifdef CONFIG_VAS_LAZY_ATTACH
+
+/**
+ * Lazily update the page tables of a vm_area which was not completely setup
+ * during the VAS attaching.
+ *
+ * @param[in] vma:		The vm_area for which the page tables should be
+ *				setup before continuing the page fault handling.
+ *
+ * @returns:			0 of the lazy-attach was successful or not
+ *				necessary, or 1 if something went wrong.
+ */
+extern int vas_lazy_attach_vma(struct vm_area_struct *vma);
+
+#else /* CONFIG_VAS_LAZY_ATTACH */
+
+static inline int vas_lazy_attach_vma(struct vm_area_struct *vma) { return 0; }
+
+#endif /* CONFIG_VAS_LAZY_ATTACH */
+
 #endif
diff --git a/mm/Kconfig b/mm/Kconfig
index 9a80877f3536..934c56bcdbf4 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -720,6 +720,24 @@ config VAS
 
 	  If not sure, then say N.
 
+config VAS_LAZY_ATTACH
+	bool "Use lazy-attach for First Class Virtual Address Spaces"
+	depends on VAS
+	default y
+	help
+	  When this option is enabled, memory regions of First Class Virtual 
+	  Address Spaces will be mapped in the task's address space lazily after
+	  the switch happened. That means, the actual mapping will happen when a
+	  page fault occurs for the particular memory region. While this
+	  technique is less costly during the switching operation, it can become
+	  very costly during the page fault handling.
+
+	  Hence if the program uses a lot of different memory regions, this
+	  lazy-attaching technique can be more costly than doing the mapping
+	  eagerly during the switch.
+
+	  If not sure, then say Y.
+
 config VAS_DEBUG
 	bool "Debugging output for First Class Virtual Address Spaces"
 	depends on VAS
diff --git a/mm/memory.c b/mm/memory.c
index e4747b3fd5b9..cdefc99a50ac 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -64,6 +64,7 @@
 #include <linux/debugfs.h>
 #include <linux/userfaultfd_k.h>
 #include <linux/dax.h>
+#include <linux/vas.h>
 
 #include <asm/io.h>
 #include <asm/mmu_context.h>
@@ -4000,6 +4001,10 @@ int handle_mm_fault(struct vm_area_struct *vma, unsigned long address,
 	/* do counter updates before entering really critical section. */
 	check_sync_rss_stat(current);
 
+	/* Check if this VMA belongs to a VAS and needs to be lazy attached. */
+	if (unlikely(vas_lazy_attach_vma(vma)))
+		return VM_FAULT_SIGSEGV;
+
 	/*
 	 * Enable the memcg OOM handling for faults triggered in user
 	 * space.  Kernel faults are handled more gracefully.
diff --git a/mm/vas.c b/mm/vas.c
index 345b023c21aa..953ba8d6e603 100644
--- a/mm/vas.c
+++ b/mm/vas.c
@@ -138,12 +138,13 @@ static void __dump_memory_map(const char *title, struct mm_struct *mm)
 		else
 			pr_cont(" OTHER ");
 
-		pr_cont("%c%c%c%c [%c]",
+		pr_cont("%c%c%c%c [%c:%c]",
 			vma->vm_flags & VM_READ ? 'r' : '-',
 			vma->vm_flags & VM_WRITE ? 'w' : '-',
 			vma->vm_flags & VM_EXEC ? 'x' : '-',
 			vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
-			vma->vas_reference ? 'v' : '-');
+			vma->vas_reference ? 'v' : '-',
+			vma->vas_attached ? 'a' : '-');
 
 		if (vma->vm_file) {
 			struct file *f = vma->vm_file;
@@ -883,6 +884,43 @@ static inline void vas_seg_put_share(int type, struct vas_seg *seg)
 }
 
 /**
+ * Identifying special regions of a memory map.
+ **/
+static inline unsigned long round_up_to_page(unsigned long addr)
+{
+	return PAGE_ALIGNED(addr) ? addr : ((addr & PAGE_MASK) + PAGE_SIZE);
+}
+
+static inline unsigned long round_down_to_page(unsigned long addr)
+{
+	return (addr & PAGE_MASK);
+}
+
+static inline bool is_code_region(struct vm_area_struct *vma)
+{
+	struct mm_struct *mm = vma->vm_mm;
+
+	return ((vma->vm_start >= round_down_to_page(mm->start_code)) &&
+		(vma->vm_end <= round_up_to_page(mm->end_code)));
+}
+
+static inline bool is_data_region(struct vm_area_struct *vma)
+{
+	struct mm_struct *mm = vma->vm_mm;
+
+	return ((vma->vm_start >= round_down_to_page(mm->start_data)) &&
+		(vma->vm_end <= round_up_to_page(mm->end_data)));
+}
+
+static inline bool is_heap_region(struct vm_area_struct *vma)
+{
+	struct mm_struct *mm = vma->vm_mm;
+
+	return ((vma->vm_start >= round_down_to_page(mm->start_brk)) &&
+		(vma->vm_end <= round_up_to_page(mm->brk)));
+}
+
+/**
  * Management of the memory maps.
  **/
 static int init_vas_mm(struct vas *vas)
@@ -1070,7 +1108,8 @@ static inline
 struct vm_area_struct *__copy_vm_area(struct mm_struct *src_mm,
 				      struct vm_area_struct *src_vma,
 				      struct mm_struct *dst_mm,
-				      unsigned long vm_flags)
+				      unsigned long vm_flags,
+				      bool dup_pages)
 {
 	struct vm_area_struct *vma, *prev;
 	struct rb_node **rb_link, *rb_parent;
@@ -1105,11 +1144,13 @@ struct vm_area_struct *__copy_vm_area(struct mm_struct *src_mm,
 	if (vma->vm_ops && vma->vm_ops->open)
 		vma->vm_ops->open(vma);
 	vma->vas_last_update = src_vma->vas_last_update;
+	vma->vas_attached = dup_pages;
 
 	vma_link(dst_mm, vma, prev, rb_link, rb_parent);
 
 	vm_stat_account(dst_mm, vma->vm_flags, vma_pages(vma));
-	if (unlikely(dup_page_range(dst_mm, vma, src_mm, src_vma)))
+	if (dup_pages &&
+	    unlikely(dup_page_range(dst_mm, vma, src_mm, src_vma)))
 		pr_vas_debug("Failed to copy page table for VMA %p from %p\n",
 			     vma, src_vma);
 
@@ -1199,7 +1240,7 @@ struct vm_area_struct *__update_vm_area(struct mm_struct *src_mm,
 		}
 
 		dst_vma = __copy_vm_area(src_mm, src_vma, dst_mm,
-					 orig_vm_flags);
+					 orig_vm_flags, true);
 		if (!dst_vma)
 			goto out;
 
@@ -1264,7 +1305,7 @@ static int vas_merge(struct att_vas *avas, struct vas *vas, int type)
 			merged_vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
 
 		new_vma = __copy_vm_area(vas_mm, vma, avas_mm,
-					 merged_vm_flags);
+					 merged_vm_flags, true);
 		if (!new_vma) {
 			pr_vas_debug("Failed to merge a VAS memory region (%#lx - %#lx)\n",
 				     vma->vm_start, vma->vm_end);
@@ -1337,7 +1378,7 @@ static int vas_unmerge(struct att_vas *avas, struct vas *vas)
 				     vma->vm_start, vma->vm_end);
 
 			new_vma = __copy_vm_area(avas_mm, vma, vas_mm,
-						 vma->vm_flags);
+						 vma->vm_flags, true);
 			if (!new_vma) {
 				pr_vas_debug("Failed to unmerge a new VAS memory region (%#lx - %#lx)\n",
 					     vma->vm_start, vma->vm_end);
@@ -1346,7 +1387,8 @@ static int vas_unmerge(struct att_vas *avas, struct vas *vas)
 			}
 
 			new_vma->vas_reference = NULL;
-		} else {
+			new_vma->vas_attached = false;
+		} else if (vma->vas_attached) {
 			struct vm_area_struct *upd_vma;
 
 			/*
@@ -1365,6 +1407,9 @@ static int vas_unmerge(struct att_vas *avas, struct vas *vas)
 				ret = -EFAULT;
 				goto out_unlock;
 			}
+		} else {
+			pr_vas_debug("Skip not-attached memory region (%#lx - %#lx) during VAS unmerging\n",
+				     vma->vm_start, vma->vm_end);
 		}
 
 		/* Remove the current VMA from the attached-VAS memory map. */
@@ -1389,10 +1434,16 @@ static int vas_unmerge(struct att_vas *avas, struct vas *vas)
  *			contains all the information for this attachment.
  * @param[in] tsk:	The pointer to the task of which the memory map
  *			should be merged.
+ * @param[in] default_copy_eagerly:
+ *			How should all the memory regions except the code region
+ *			be handled. If true, their page tables will be
+ *			duplicated as well, if false they will not be
+ *			duplicated.
  *
  * @returns:		0 on success, -ERRNO otherwise.
  **/
-static int task_merge(struct att_vas *avas, struct task_struct *tsk)
+static int _task_merge(struct att_vas *avas, struct task_struct *tsk,
+		       bool default_copy_eagerly)
 {
 	struct vm_area_struct *vma, *new_vma;
 	struct mm_struct *avas_mm, *tsk_mm;
@@ -1413,10 +1464,23 @@ static int task_merge(struct att_vas *avas, struct task_struct *tsk)
 	 * map to the attached-VAS memory map.
 	 */
 	for (vma = tsk_mm->mmap; vma; vma = vma->vm_next) {
-		pr_vas_debug("Merging a task memory region (%#lx - %#lx)\n",
-			     vma->vm_start, vma->vm_end);
+		bool copy_eagerly = default_copy_eagerly;
+
+		/*
+		 * The code region of the task will *always* be copied eagerly.
+		 * We need this region in any case to continue execution. All
+		 * the other memory regions are copied according to the
+		 * 'default_copy_eagerly' variable.
+		 */
+		if (is_code_region(vma))
+			copy_eagerly = true;
 
-		new_vma = __copy_vm_area(tsk_mm, vma, avas_mm, vma->vm_flags);
+		pr_vas_debug("Merging a task memory region (%#lx - %#lx) %s\n",
+			     vma->vm_start, vma->vm_end,
+			     copy_eagerly ? "eagerly" : "lazily");
+
+		new_vma = __copy_vm_area(tsk_mm, vma, avas_mm, vma->vm_flags,
+					 copy_eagerly);
 		if (!new_vma) {
 			pr_vas_debug("Failed to merge a task memory region (%#lx - %#lx)\n",
 				     vma->vm_start, vma->vm_end);
@@ -1443,6 +1507,16 @@ static int task_merge(struct att_vas *avas, struct task_struct *tsk)
 	return ret;
 }
 
+/*
+ * Decide based on the kernel configuration setting if we copy task memory
+ * regions eagerly or lazily.
+ */
+#ifdef CONFIG_VAS_LAZY_ATTACH
+#define task_merge(avas, tsk) _task_merge(avas, tsk, false)
+#else
+#define task_merge(avas, tsk) _task_merge(avas, tsk, true)
+#endif
+
 /**
  * Unmerge task-related parts of an attached-VAS memory map back into the
  * task's memory map.
@@ -1541,7 +1615,8 @@ static int vas_seg_merge(struct vas *vas, struct vas_seg *seg, int type)
 		if (!(type & MAY_WRITE))
 			merged_vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
 
-		new_vma = __copy_vm_area(seg_mm, vma, vas_mm, merged_vm_flags);
+		new_vma = __copy_vm_area(seg_mm, vma, vas_mm, merged_vm_flags,
+					 true);
 		if (!new_vma) {
 			pr_vas_debug("Failed to merge a VAS segment memory region (%#lx - %#lx)\n",
 				     vma->vm_start, vma->vm_end);
@@ -1606,7 +1681,7 @@ static int vas_seg_unmerge(struct vas *vas, struct vas_seg *seg)
 			pr_vas_debug("Skipping memory region (%#lx - %#lx) during VAS segment unmerging\n",
 				     vma->vm_start, vma->vm_end);
 			continue;
-		} else {
+		} else if (vma->vas_attached) {
 			struct vm_area_struct *upd_vma;
 
 			pr_vas_debug("Unmerging a VAS segment memory region (%#lx - %#lx)\n",
@@ -1619,6 +1694,9 @@ static int vas_seg_unmerge(struct vas *vas, struct vas_seg *seg)
 				ret = -EFAULT;
 				goto out_unlock;
 			}
+		} else {
+			pr_vas_debug("Skip not-attached memory region (%#lx - %#lx) during segment unmerging\n",
+				     vma->vm_start, vma->vm_end);
 		}
 
 		/* Remove the current VMA from the VAS memory map. */
@@ -1809,8 +1887,13 @@ static int __sync_from_task(struct mm_struct *avas_mm, struct mm_struct *tsk_mm)
 
 		ref = vas_find_reference(avas_mm, vma);
 		if (!ref) {
+#ifdef CONFIG_VAS_LAZY_ATTACH
 			ref = __copy_vm_area(tsk_mm, vma, avas_mm,
-					     vma->vm_flags);
+					     vma->vm_flags, false);
+#else
+			ref = __copy_vm_area(tsk_mm, vma, avas_mm,
+					     vma->vm_flags, true);
+#endif
 
 			if (!ref) {
 				pr_vas_debug("Failed to copy memory region (%#lx - %#lx) during task sync\n",
@@ -1824,7 +1907,7 @@ static int __sync_from_task(struct mm_struct *avas_mm, struct mm_struct *tsk_mm)
 			 * copied it from.
 			 */
 			ref->vas_reference = tsk_mm;
-		} else {
+		} else if (ref->vas_attached) {
 			ref = __update_vm_area(tsk_mm, vma, avas_mm, ref);
 			if (!ref) {
 				pr_vas_debug("Failed to update memory region (%#lx - %#lx) during task sync\n",
@@ -1832,6 +1915,9 @@ static int __sync_from_task(struct mm_struct *avas_mm, struct mm_struct *tsk_mm)
 				ret = -EFAULT;
 				break;
 			}
+		} else {
+			pr_vas_debug("Skip not-attached memory region (%#lx - %#lx) during task sync\n",
+				     vma->vm_start, vma->vm_end);
 		}
 	}
 
@@ -1848,7 +1934,7 @@ static int __sync_to_task(struct mm_struct *avas_mm, struct mm_struct *tsk_mm)
 		if (vma->vas_reference != tsk_mm) {
 			pr_vas_debug("Skip unrelated memory region (%#lx - %#lx) during task resync\n",
 				     vma->vm_start, vma->vm_end);
-		} else {
+		} else if (vma->vas_attached) {
 			struct vm_area_struct *ref;
 
 			ref = __update_vm_area(avas_mm, vma, tsk_mm, NULL);
@@ -1858,6 +1944,9 @@ static int __sync_to_task(struct mm_struct *avas_mm, struct mm_struct *tsk_mm)
 				ret = -EFAULT;
 				break;
 			}
+		} else {
+			pr_vas_debug("Skip not-attached memory region (%#lx - %#lx) during task resync\n",
+				     vma->vm_start, vma->vm_end);
 		}
 	}
 
@@ -3100,6 +3189,47 @@ void vas_exit(struct task_struct *tsk)
 	}
 }
 
+#ifdef CONFIG_VAS_LAZY_ATTACH
+
+int vas_lazy_attach_vma(struct vm_area_struct *vma)
+{
+	struct mm_struct *ref_mm, *mm;
+	struct vm_area_struct *ref_vma;
+
+	if (likely(!vma->vas_reference))
+		return 0;
+	if (vma->vas_attached)
+		return 0;
+
+	ref_mm = vma->vas_reference;
+	mm = vma->vm_mm;
+
+	down_read_nested(&ref_mm->mmap_sem, SINGLE_DEPTH_NESTING);
+	ref_vma = vas_find_reference(ref_mm, vma);
+	up_read(&ref_mm->mmap_sem);
+	if (!ref_vma) {
+		pr_vas_debug("Couldn't find VAS reference\n");
+		return 1;
+	}
+
+	pr_vas_debug("Lazy-attach memory region (%#lx - %#lx)\n",
+		     ref_vma->vm_start, ref_vma->vm_end);
+
+	if (unlikely(dup_page_range(mm, vma, ref_mm, ref_vma))) {
+		pr_vas_debug("Failed to copy page tables for VMA %p from %p\n",
+			     vma, ref_vma);
+		return 1;
+	}
+
+	vma->vas_last_update = ref_vma->vas_last_update;
+	vma->vas_attached = true;
+
+	return 0;
+}
+
+#endif /* CONFIG_VAS_LAZY_ATTACH */
+
+
 /***
  * System Calls
  ***/
-- 
2.12.0

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From - Thu Nov 08 21:39:43 2018
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From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.aio.general,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: [RFC PATCH 13/13] fs/proc: Add procfs support for first class virtual address spaces
Date: Mon, 13 Mar 2017 15:14:15 -0700
Lines: 630
Approved: news@gmane.org
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To: Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	Vineet Gupta <vgupta@synopsys.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.mm/168271>

Add new files and directories to the procfs file system that contain
various information about the first class virtual address spaces attach to
the processes in the system.

To the procfs directories of each process in the system (/proc/$PID) an
additional directory with the name 'vas' is added that contains information
about all the VAS that are attached to this process. In this directory one
can find for each attached VAS a special folder with a file with some
status information about the attached VAS, a file with the current memory
map of the attached VAS and a link to the sysfs folder of the underlying
VAS.

Signed-off-by: Till Smejkal <till.smejkal@gmail.com>
---
 fs/proc/base.c     | 528 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 fs/proc/inode.c    |   1 +
 fs/proc/internal.h |   1 +
 mm/Kconfig         |   9 +
 4 files changed, 539 insertions(+)

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 87c9a9aacda3..e60c13dd087c 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -45,6 +45,9 @@
  *
  *  Paul Mundt <paul.mundt@nokia.com>:
  *  Overall revision about smaps.
+ *
+ *  Till Smejkal <till.smejkal@gmail.com>:
+ *  Add entries for first class virtual address spaces.
  */
 
 #include <linux/uaccess.h>
@@ -87,6 +90,7 @@
 #include <linux/slab.h>
 #include <linux/flex_array.h>
 #include <linux/posix-timers.h>
+#include <linux/vas.h>
 #ifdef CONFIG_HARDWALL
 #include <asm/hardwall.h>
 #endif
@@ -2841,6 +2845,527 @@ static int proc_pid_personality(struct seq_file *m, struct pid_namespace *ns,
 	return err;
 }
 
+#ifdef CONFIG_VAS_PROCFS
+
+/**
+ * Get a string representation of the access type to a VAS.
+ **/
+#define vas_access_type_str(type) ((type) & MAY_WRITE ?			\
+				   ((type) & MAY_READ ? "rw" : "wo") : "ro")
+
+static int att_vas_show_status(struct seq_file *sf, void *unused)
+{
+	struct inode *inode = sf->private;
+	struct proc_inode *pi = PROC_I(inode);
+	struct task_struct *tsk;
+	struct vas_context *vas_ctx;
+	struct att_vas *avas;
+	int vid = pi->vas_id;
+
+	tsk = get_proc_task(inode);
+	if (!tsk)
+		return -ENOENT;
+
+	vas_ctx = tsk->vas_ctx;
+
+	vas_context_lock(vas_ctx);
+
+	list_for_each_entry(avas, &vas_ctx->vases, tsk_link) {
+		if (vid == avas->vas->id)
+			goto good_att_vas;
+	}
+
+	vas_context_unlock(vas_ctx);
+	put_task_struct(tsk);
+
+	return -ENOENT;
+
+good_att_vas:
+	seq_printf(sf,
+		   "pid:  %d\n"
+		   "vid:  %d\n"
+		   "type: %s\n",
+		   avas->tsk->pid, avas->vas->id,
+		   vas_access_type_str(avas->type));
+
+	vas_context_unlock(vas_ctx);
+	put_task_struct(tsk);
+
+	return 0;
+}
+
+static int att_vas_show_status_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, att_vas_show_status, inode);
+}
+
+static const struct file_operations att_vas_show_status_fops = {
+	.open		= att_vas_show_status_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int att_vas_show_mappings(struct seq_file *sf, void *unused)
+{
+	struct inode *inode = sf->private;
+	struct proc_inode *pi = PROC_I(inode);
+	struct task_struct *tsk;
+	struct vas_context *vas_ctx;
+	struct att_vas *avas;
+	struct mm_struct *mm;
+	struct vm_area_struct *vma;
+	int vid = pi->vas_id;
+
+	tsk = get_proc_task(inode);
+	if (!tsk)
+		return -ENOENT;
+
+	vas_ctx = tsk->vas_ctx;
+
+	vas_context_lock(vas_ctx);
+
+	list_for_each_entry(avas, &vas_ctx->vases, tsk_link) {
+		if (avas->vas->id == vid)
+			goto good_att_vas;
+	}
+
+	vas_context_unlock(vas_ctx);
+	put_task_struct(tsk);
+
+	return -ENOENT;
+
+good_att_vas:
+	mm = avas->mm;
+
+	down_read(&mm->mmap_sem);
+
+	if (!mm->mmap) {
+		seq_puts(sf, "EMPTY\n");
+		goto out_unlock;
+	}
+
+	for (vma = mm->mmap; vma; vma = vma->vm_next) {
+		vm_flags_t flags = vma->vm_flags;
+		struct file *file = vma->vm_file;
+		unsigned long long pgoff = 0;
+
+		if (file)
+			pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT;
+
+		seq_printf(sf, "%08lx-%08lx %c%c%c%c [%c:%c] %08llx",
+			   vma->vm_start, vma->vm_end,
+			   flags & VM_READ ? 'r' : '-',
+			   flags & VM_WRITE ? 'w' : '-',
+			   flags & VM_EXEC ? 'x' : '-',
+			   flags & VM_MAYSHARE ? 's' : 'p',
+			   vma->vas_reference ? 'v' : '-',
+			   vma->vas_attached ? 'a' : '-',
+			   pgoff);
+
+		seq_putc(sf, ' ');
+
+		if (file) {
+			seq_file_path(sf, file, "\n");
+		} else if (vma->vm_ops && vma->vm_ops->name) {
+			seq_puts(sf, vma->vm_ops->name(vma));
+		} else {
+			if (!vma->vm_mm)
+				seq_puts(sf, "[vdso]");
+			else if (vma->vm_start <= mm->brk &&
+				 vma->vm_end >= mm->start_brk)
+				seq_puts(sf, "[heap]");
+			else if (vma->vm_start <= mm->start_stack &&
+				 vma->vm_end >= mm->start_stack)
+				seq_puts(sf, "[stack]");
+		}
+
+		seq_putc(sf, '\n');
+	}
+
+out_unlock:
+	up_read(&mm->mmap_sem);
+
+	vas_context_unlock(vas_ctx);
+	put_task_struct(tsk);
+
+	return 0;
+}
+
+static int att_vas_show_mappings_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, att_vas_show_mappings, inode);
+}
+
+static const struct file_operations att_vas_show_mappings_fops = {
+	.open		= att_vas_show_mappings_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int att_vas_vas_link(char *name, int *buflen, int vid)
+{
+	int len;
+
+	len = scnprintf(name, *buflen, "/sys/kernel/vas/%d", vid);
+	if (len >= *buflen)
+		return -E2BIG;
+
+	*buflen = len;
+	return 0;
+}
+
+static int att_vas_vas_link_readlink(struct dentry *dentry, char __user *buffer,
+				     int buflen)
+{
+	char *name;
+	int len, ret;
+	int vid;
+
+	len = PATH_MAX;
+	name = kmalloc(len, GFP_TEMPORARY);
+	if (!name)
+		return -ENOMEM;
+
+	vid = PROC_I(d_inode(dentry))->vas_id;
+
+	ret = att_vas_vas_link(name, &len, vid);
+	if (ret != 0)
+		goto out_free;
+
+	if (len > buflen)
+		len = buflen;
+	if (copy_to_user(buffer, name, len) != 0) {
+		ret = -EFAULT;
+		goto out_free;
+	}
+
+	ret = len;
+
+out_free:
+	kfree(name);
+
+	return ret;
+}
+
+static const char *att_vas_vas_link_get_link(struct dentry *dentry,
+					     struct inode *inode,
+					     struct delayed_call *done)
+{
+	char *name;
+	int len, ret;
+	int vid;
+
+	if (!dentry)
+		return ERR_PTR(-ECHILD);
+
+	len = PATH_MAX;
+	name = kmalloc(len, GFP_TEMPORARY);
+	if (!name)
+		return NULL;
+
+	vid = PROC_I(inode)->vas_id;
+
+	ret = att_vas_vas_link(name, &len, vid);
+	if (ret != 0) {
+		kfree(name);
+		return ERR_PTR(ret);
+	}
+
+	set_delayed_call(done, kfree_link, name);
+	return name;
+}
+
+static const struct inode_operations att_vas_vas_link_iops = {
+	.readlink	= att_vas_vas_link_readlink,
+	.get_link	= att_vas_vas_link_get_link,
+	.setattr	= proc_setattr
+};
+
+static const struct pid_entry att_vas_stuff[] = {
+	REG("status", 0444, att_vas_show_status_fops),
+	REG("maps", 0440, att_vas_show_mappings_fops),
+	NOD("vas", (S_IFLNK | 0777), &att_vas_vas_link_iops, NULL, {}),
+};
+
+static int att_vas_revalidate(struct dentry *dentry, unsigned int flags)
+{
+	struct inode *inode;
+	struct task_struct *tsk;
+	struct vas_context *vas_ctx;
+	struct att_vas *avas;
+	int vid;
+	int ret;
+
+	if (flags & LOOKUP_RCU)
+		return -ECHILD;
+
+	inode = d_inode(dentry);
+	tsk = get_proc_task(inode);
+	if (!tsk)
+		return 0;
+
+	vid = PROC_I(inode)->vas_id;
+	vas_ctx = tsk->vas_ctx;
+
+	vas_context_lock(vas_ctx);
+
+	ret = 0;
+	list_for_each_entry(avas, &vas_ctx->vases, tsk_link) {
+		if (avas->vas->id == vid) {
+			ret = 1;
+			break;
+		}
+	}
+
+	vas_context_unlock(vas_ctx);
+	put_task_struct(tsk);
+
+	return ret;
+}
+
+static const struct dentry_operations att_vas_dops = {
+	.d_revalidate	= att_vas_revalidate,
+};
+
+static int att_vas_pident_instantiate(struct inode *dir,
+				      struct dentry *dentry,
+				      struct task_struct *task,
+				      const void *ptr)
+{
+	const struct pid_entry *p = ptr;
+	struct inode *inode;
+	struct proc_inode *ei;
+
+	inode = proc_pid_make_inode(dir->i_sb, task, p->mode);
+	if (!inode)
+		goto out;
+
+	ei = PROC_I(inode);
+	if (S_ISDIR(inode->i_mode))
+		set_nlink(inode, 2);
+	if (p->iop)
+		inode->i_op = p->iop;
+	if (p->fop)
+		inode->i_fop = p->fop;
+	ei->op = p->op;
+
+	/* Copy the VAS ID from the parent inode */
+	ei->vas_id = PROC_I(dir)->vas_id;
+
+	d_set_d_op(dentry, &att_vas_dops);
+	d_add(dentry, inode);
+
+	if (att_vas_revalidate(dentry, 0))
+		return 0;
+out:
+	return -ENOENT;
+}
+
+static struct dentry *att_vas_pident_lookup(struct inode *dir,
+					    struct dentry *dentry,
+					    unsigned int flags)
+{
+	int error;
+	struct task_struct *task = get_proc_task(dir);
+	const struct pid_entry *p, *last;
+	const struct pid_entry *entries = att_vas_stuff;
+	int nents = ARRAY_SIZE(att_vas_stuff);
+
+	error = -ENOENT;
+
+	if (!task)
+		goto out_no_task;
+
+	last = &entries[nents];
+	for (p = entries; p < last; p++) {
+		if (p->len != dentry->d_name.len)
+			continue;
+		if (!memcmp(dentry->d_name.name, p->name, p->len))
+			break;
+	}
+	if (p >= last)
+		goto out;
+
+	error = att_vas_pident_instantiate(dir, dentry, task, p);
+out:
+	put_task_struct(task);
+out_no_task:
+	return ERR_PTR(error);
+}
+
+static int att_vas_pident_readdir(struct file *file, struct dir_context *ctx)
+{
+	struct task_struct *task = get_proc_task(file_inode(file));
+	const struct pid_entry *p, *last;
+	const struct pid_entry *entries = att_vas_stuff;
+	int nents = ARRAY_SIZE(att_vas_stuff);
+
+	if (!task)
+		return -ENOENT;
+
+	if (!dir_emit_dots(file, ctx))
+		goto out;
+
+	if (ctx->pos >= nents + 2)
+		goto out;
+
+	last = &entries[nents];
+	for (p = entries + (ctx->pos - 2); p < last; p++) {
+		if (!proc_fill_cache(file, ctx, p->name, p->len,
+				     att_vas_pident_instantiate, task, p))
+			break;
+		ctx->pos++;
+	}
+out:
+	put_task_struct(task);
+	return 0;
+}
+
+static const struct inode_operations proc_att_vas_iops = {
+	.lookup		= att_vas_pident_lookup,
+	.setattr	= proc_setattr,
+	.permission	= generic_permission,
+};
+
+static const struct file_operations proc_att_vas_fops = {
+	.read		= generic_read_dir,
+	.llseek		= generic_file_llseek,
+	.iterate_shared	= att_vas_pident_readdir,
+};
+
+static int proc_att_vas_dir_instantiate(struct inode *dir,
+					struct dentry *dentry,
+					struct task_struct *tsk,
+					const void *data)
+{
+	struct inode *inode;
+	struct proc_inode *pi;
+	const struct att_vas *avas = data;
+
+	inode = proc_pid_make_inode(dir->i_sb, tsk, S_IFDIR | 0555);
+
+	if (!inode)
+		return -ENOENT;
+
+	pi = PROC_I(inode);
+	pi->vas_id = avas->vas->id;
+
+	set_nlink(inode, 2);
+	inode->i_op = &proc_att_vas_iops;
+	inode->i_fop = &proc_att_vas_fops;
+
+	d_add(dentry, inode);
+	d_set_d_op(dentry, &att_vas_dops);
+
+	/*
+	 * No need to revalidate the dentry at this point, because we are still
+	 * holding the lock for the VAS context. Hence this VAS cannot be
+	 * detached from the task and hence the dentry is still valid.
+	 */
+	return 0;
+}
+
+static struct dentry *proc_att_vas_dir_lookup(struct inode *dir,
+					      struct dentry *dentry,
+					      unsigned int flags)
+{
+	struct task_struct *tsk;
+	struct vas_context *vas_ctx;
+	struct att_vas *avas;
+	int vid;
+	int ret;
+
+	tsk = get_proc_task(dir);
+	if (!tsk)
+		return ERR_PTR(-ENOENT);
+
+	if (kstrtoint(dentry->d_name.name, 10, &vid)) {
+		ret = -EINVAL;
+		goto out_put;
+	}
+
+	vas_ctx = tsk->vas_ctx;
+
+	vas_context_lock(vas_ctx);
+
+	ret = -ENOENT;
+	list_for_each_entry(avas, &vas_ctx->vases, tsk_link) {
+		if (vid == avas->vas->id) {
+			ret = proc_att_vas_dir_instantiate(dir, dentry,
+							   tsk, avas);
+			break;
+		}
+	}
+
+	vas_context_unlock(vas_ctx);
+
+out_put:
+	put_task_struct(tsk);
+
+	return ERR_PTR(ret);
+}
+
+static int proc_att_vas_dir_readdir(struct file *file, struct dir_context *ctx)
+{
+	struct inode *inode = file_inode(file);
+	struct task_struct *tsk;
+	struct vas_context *vas_ctx;
+	struct att_vas *avas;
+	int pos = 2;
+
+	tsk = get_proc_task(inode);
+	if (!tsk)
+		return -ENOENT;
+
+	if (!dir_emit_dots(file, ctx))
+		goto out_put;
+
+	vas_ctx = tsk->vas_ctx;
+
+	vas_context_lock(vas_ctx);
+
+	list_for_each_entry(avas, &vas_ctx->vases, tsk_link) {
+		char name[PROC_NUMBUF];
+		int len;
+
+		if (++pos <= ctx->pos)
+			continue;
+
+		snprintf(name, sizeof(name), "%d", avas->vas->id);
+		len = strnlen(name, PROC_NUMBUF);
+
+		if (!proc_fill_cache(file, ctx, name, len,
+				     proc_att_vas_dir_instantiate,
+				     tsk, avas))
+			break;
+
+		ctx->pos++;
+	}
+
+	vas_context_unlock(vas_ctx);
+
+out_put:
+	put_task_struct(tsk);
+
+	return 0;
+}
+
+const struct inode_operations proc_att_vas_dir_iops = {
+	.lookup		= proc_att_vas_dir_lookup,
+	.setattr	= proc_setattr,
+	.permission	= generic_permission,
+};
+
+const struct file_operations proc_att_vas_dir_fops = {
+	.read		= generic_read_dir,
+	.llseek		= generic_file_llseek,
+	.iterate_shared	= proc_att_vas_dir_readdir,
+};
+
+#endif
+
 /*
  * Thread groups
  */
@@ -2856,6 +3381,9 @@ static const struct pid_entry tgid_base_stuff[] = {
 #ifdef CONFIG_NET
 	DIR("net",        S_IRUGO|S_IXUGO, proc_net_inode_operations, proc_net_operations),
 #endif
+#ifdef CONFIG_VAS_PROCFS
+	DIR("vas",        S_IRUGO|S_IXUGO, proc_att_vas_dir_iops, proc_att_vas_dir_fops),
+#endif
 	REG("environ",    S_IRUSR, proc_environ_operations),
 	REG("auxv",       S_IRUSR, proc_auxv_operations),
 	ONE("status",     S_IRUGO, proc_pid_status),
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index cb2d5702bdce..cc8937d348df 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -63,6 +63,7 @@ static struct inode *proc_alloc_inode(struct super_block *sb)
 	ei->pid = NULL;
 	ei->fd = 0;
 	ei->op.proc_get_link = NULL;
+	ei->vas_id = 0;
 	ei->pde = NULL;
 	ei->sysctl = NULL;
 	ei->sysctl_entry = NULL;
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 2de5194ba378..0cb6bb39d61d 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -61,6 +61,7 @@ union proc_op {
 struct proc_inode {
 	struct pid *pid;
 	unsigned int fd;
+	int vas_id;
 	union proc_op op;
 	struct proc_dir_entry *pde;
 	struct ctl_table_header *sysctl;
diff --git a/mm/Kconfig b/mm/Kconfig
index 934c56bcdbf4..9ef3efc16bed 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -745,3 +745,12 @@ config VAS_DEBUG
 	help
 	  Enable extensive debugging output for the First Class Virtual Address
 	  Spaces feature.
+
+config VAS_PROCFS
+	bool "procfs entries for First Class Virtual Address Spaces"
+	depends on VAS && PROC_FS
+	default y
+	help
+	  Provide information in /proc/$PID about all First Class 
+	  Virtual Address Spaces that are currently attached to the
+	  corresponding process.
-- 
2.12.0

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From - Thu Nov 08 21:39:43 2018
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From: Matthew Wilcox <willy@infradead.org>
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Subject: Re: [RFC PATCH 11/13] mm/vas: Introduce VAS segments - shareable
 address space regions
Date: Mon, 13 Mar 2017 15:27:58 -0700
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Cc: linux-mips@linux-mips.org, linux-s390@vger.kernel.org,
 Rich Felker <dalias@libc.org>, linux-ia64@vger.kernel.org,
 linux-sh@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Heiko Carstens <heiko.carstens@de.ibm.com>, alsa-devel@alsa-project.org,
 linux-usb@vger.kernel.org, "James E.J. Bottomley" <jejb@parisc-linux.org>,
 "J. Bruce Fields" <bfields@fieldses.org>, Max Filippov <jcmvbkbc@gmail.com>,
 Paul Mackerras <paulus@samba.org>,
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 "H. Peter Anvin" <hpa@zytor.com>, sparclinux@vger.kernel.org,
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 linux-kernel@vger.kernel.org, Marek Szyprowski <m.szyprowski@samsung.com>,
 linux-arch@vger.kernel.org,
 Boris Brezillon <bo
To: Till Smejkal <till.smejkal@googlemail.com>
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On Mon, Mar 13, 2017 at 03:14:13PM -0700, Till Smejkal wrote:
> +/**
> + * Create a new VAS segment.
> + *
> + * @param[in] name:		The name of the new VAS segment.
> + * @param[in] start:		The address where the VAS segment begins.
> + * @param[in] end:		The address where the VAS segment ends.
> + * @param[in] mode:		The access rights for the VAS segment.
> + *
> + * @returns:			The VAS segment ID on success, -ERRNO otherwise.
> + **/

Please follow the kernel-doc conventions, as described in
Documentation/doc-guide/kernel-doc.rst.  Also, function documentation
goes with the implementation, not the declaration.

> +/**
> + * Get ID of the VAS segment belonging to a given name.
> + *
> + * @param[in] name:		The name of the VAS segment for which the ID
> + *				should be returned.
> + *
> + * @returns:			The VAS segment ID on success, -ERRNO
> + *				otherwise.
> + **/
> +extern int vas_seg_find(const char *name);

So ... segments have names, and IDs ... and access permissions ...
Why isn't this a special purpose filesystem?


______________________________________________________
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Subject: Re: [RFC PATCH 11/13] mm/vas: Introduce VAS segments - shareable
 address space regions
Date: Mon, 13 Mar 2017 15:45:36 -0700
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To: Matthew Wilcox <willy@infradead.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.aio.general/4950>

Hi Matthew,

On Mon, 13 Mar 2017, Matthew Wilcox wrote:
> On Mon, Mar 13, 2017 at 03:14:13PM -0700, Till Smejkal wrote:
> > +/**
> > + * Create a new VAS segment.
> > + *
> > + * @param[in] name:		The name of the new VAS segment.
> > + * @param[in] start:		The address where the VAS segment begins.
> > + * @param[in] end:		The address where the VAS segment ends.
> > + * @param[in] mode:		The access rights for the VAS segment.
> > + *
> > + * @returns:			The VAS segment ID on success, -ERRNO otherwise.
> > + **/
> 
> Please follow the kernel-doc conventions, as described in
> Documentation/doc-guide/kernel-doc.rst.  Also, function documentation
> goes with the implementation, not the declaration.

Thank you for this pointer. I wasn't aware of this convention. I will change the
patches accordingly.

> > +/**
> > + * Get ID of the VAS segment belonging to a given name.
> > + *
> > + * @param[in] name:		The name of the VAS segment for which the ID
> > + *				should be returned.
> > + *
> > + * @returns:			The VAS segment ID on success, -ERRNO
> > + *				otherwise.
> > + **/
> > +extern int vas_seg_find(const char *name);
> 
> So ... segments have names, and IDs ... and access permissions ...
> Why isn't this a special purpose filesystem?

We also thought about this. However, we decided against implementing them as a
special purpose filesystem, mainly because we could not think of a good way to
represent a VAS/VAS segment in this file system (should they be represented rather as
file or directory) and we weren't sure what a hierarchy in the filesystem would mean
for the underlying address spaces. Hence we decided against it and rather used a
combination of IDR and sysfs. However, I don't have any strong feelings and would
also reimplement them as a special purpose filesystem if people rather like them to
be one.

Till

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From - Thu Nov 08 21:39:44 2018
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Subject: Re: [RFC PATCH 10/13] mm: Introduce first class virtual address
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Date: Tue, 14 Mar 2017 07:52:25 +0800
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Cc: Richard Henderson <rth@twiddle.net>,
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	Vineet Gupta <vgupta@synopsys.com>,
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	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	"David S. Miller" <davem@daveml
To: Till Smejkal <till.smejkal@googlemail.com>
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On Mon, Mar 13, 2017 at 03:14:12PM -0700, Till Smejkal wrote:

There's no way with that many cc: lists and people that this is really
making it through very many people's filters and actually on a mailing
list.  Please trim them down.

Minor sysfs questions/issues:

> +struct vas {
> +	struct kobject kobj;		/* < the internal kobject that we use *
> +					 *   for reference counting and sysfs *
> +					 *   handling.                        */
> +
> +	int id;				/* < ID                               */
> +	char name[VAS_MAX_NAME_LENGTH];	/* < name                             */

The kobject has a name, why not use that?

> +
> +	struct mutex mtx;		/* < lock for parallel access.        */
> +
> +	struct mm_struct *mm;		/* < a partial memory map containing  *
> +					 *   all mappings of this VAS.        */
> +
> +	struct list_head link;		/* < the link in the global VAS list. */
> +	struct rcu_head rcu;		/* < the RCU helper used for          *
> +					 *   asynchronous VAS deletion.       */
> +
> +	u16 refcount;			/* < how often is the VAS attached.   */

The kobject has a refcount, use that?  Don't have 2 refcounts in the
same structure, that way lies madness.  And bugs, lots of bugs...

And if this really is a refcount (hint, I don't think it is), you should
use the refcount_t type.

> +/**
> + * The sysfs structure we need to handle attributes of a VAS.
> + **/
> +struct vas_sysfs_attr {
> +	struct attribute attr;
> +	ssize_t (*show)(struct vas *vas, struct vas_sysfs_attr *vsattr,
> +			char *buf);
> +	ssize_t (*store)(struct vas *vas, struct vas_sysfs_attr *vsattr,
> +			 const char *buf, size_t count);
> +};
> +
> +#define VAS_SYSFS_ATTR(NAME, MODE, SHOW, STORE)				\
> +static struct vas_sysfs_attr vas_sysfs_attr_##NAME =			\
> +	__ATTR(NAME, MODE, SHOW, STORE)

__ATTR_RO and __ATTR_RW should work better for you.  If you really need
this.

Oh, and where is the Documentation/ABI/ updates to try to describe the
sysfs structure and files?  Did I miss that in the series?

> +static ssize_t __show_vas_name(struct vas *vas, struct vas_sysfs_attr *vsattr,
> +			       char *buf)
> +{
> +	return scnprintf(buf, PAGE_SIZE, "%s", vas->name);

It's a page size, just use sprintf() and be done with it.  No need to
ever check, you "know" it will be correct.

Also, what about a trailing '\n' for these attributes?

Oh wait, why have a name when the kobject name is already there in the
directory itself?  Do you really need this?

> +/**
> + * The ktype data structure representing a VAS.
> + **/
> +static struct kobj_type vas_ktype = {
> +	.sysfs_ops = &vas_sysfs_ops,
> +	.release = __vas_release,

Why the odd __vas* naming?  What's wrong with vas_release?


> +	.default_attrs = vas_default_attr,
> +};
> +
> +
> +/***
> + * Internally visible functions
> + ***/
> +
> +/**
> + * Working with the global VAS list.
> + **/
> +static inline void vas_remove(struct vas *vas)

<snip>

You have a ton of inline functions, for no good reason.  Make them all
"real" functions please.  Unless you can measure the size/speed
differences?  If so, please say so.


thanks,

greg k-h

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Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
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On 03/14/2017 08:14 AM, Till Smejkal wrote:
> At the current state of the development, first class virtual address spaces
> have one limitation, that we haven't been able to solve so far. The feature
> allows, that different threads of the same process can execute in different
> AS at the same time. This is possible, because the VAS-switch operation
> only changes the active mm_struct for the task_struct of the calling
> thread. However, when a thread switches into a first class virtual address
> space, some parts of its original AS are duplicated into the new one to
> allow the thread to continue its execution at its current state.
> Accordingly, parts of the processes AS (e.g. the code section, data
> section, heap section and stack sections) exist in multiple AS if the
> process has a VAS attached to it. Changes to these shared memory regions
> are synchronized between the address spaces whenever a thread switches
> between two of them. Unfortunately, in some scenarios the kernel is not
> able to properly synchronize all these shared memory regions because of
> conflicting changes. One such example happens if there are two threads, one
> executing in an attached first class virtual address space, the other in
> the tasks original address space. If both threads make changes to the heap
> section that cause expansion of the underlying vm_area_struct, the kernel
> cannot correctly synchronize these changes, because that would cause parts
> of the virtual address space to be overwritten with unrelated data. In the
> current implementation such conflicts are only detected but not resolved
> and result in an error code being returned by the kernel during the VAS
> switch operation. Unfortunately, that means for the particular thread that
> tried to make the switch, that it cannot do this anymore in the future and
> accordingly has to be killed.

This sounds like a fairly fundamental problem to me.

Is this an indication that full virtual address spaces are useless?  It would 
seem like if you only use virtual address segments then you avoid all of the 
problems with executing code, active stacks, and brk.


r~



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Subject: Re: [RFC PATCH 10/13] mm: Introduce first class virtual address
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Cc: Till Smejkal <till.smejkal@googlemail.com>,
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	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalia
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.aio.general/4953>

Hi Greg,

First of all thanks for your reply.

On Tue, 14 Mar 2017, Greg Kroah-Hartman wrote:
> On Mon, Mar 13, 2017 at 03:14:12PM -0700, Till Smejkal wrote:
> 
> There's no way with that many cc: lists and people that this is really
> making it through very many people's filters and actually on a mailing
> list.  Please trim them down.

I am sorry that the patch's cc-list is too big. This was the list of people that the
get_maintainers.pl script produced. I already recognized that it was a huge number of
people, but I didn't want to remove anyone from the list because I wasn't sure who
would be interested in this patch set. Do you have any suggestion who to remove from
the list? I don't want to annoy anyone with useless emails.

> Minor sysfs questions/issues:
> 
> > +struct vas {
> > +	struct kobject kobj;		/* < the internal kobject that we use *
> > +					 *   for reference counting and sysfs *
> > +					 *   handling.                        */
> > +
> > +	int id;				/* < ID                               */
> > +	char name[VAS_MAX_NAME_LENGTH];	/* < name                             */
> 
> The kobject has a name, why not use that?

The reason why I don't use the kobject's name is that I don't restrict the names that
are used for VAS/VAS segments. Accordingly, it would be allowed to use a name like
"foo/bar/xyz" as VAS name. However, I am not sure what would happen in the sysfs if I
would use such a name for the kobject. Especially, since one could think of another
VAS with the name "foo/bar" whose name would conflict with the first one although it
not necessarily has any connection with it.

> > +
> > +	struct mutex mtx;		/* < lock for parallel access.        */
> > +
> > +	struct mm_struct *mm;		/* < a partial memory map containing  *
> > +					 *   all mappings of this VAS.        */
> > +
> > +	struct list_head link;		/* < the link in the global VAS list. */
> > +	struct rcu_head rcu;		/* < the RCU helper used for          *
> > +					 *   asynchronous VAS deletion.       */
> > +
> > +	u16 refcount;			/* < how often is the VAS attached.   */
> 
> The kobject has a refcount, use that?  Don't have 2 refcounts in the
> same structure, that way lies madness.  And bugs, lots of bugs...
> 
> And if this really is a refcount (hint, I don't think it is), you should
> use the refcount_t type.

I actually use both the internal kobject refcount to keep track of how often a
VAS/VAS segment is referenced and this 'refcount' variable to keep track how often
the VAS is actually attached to a task. They not necessarily must be related to each
other. I can rename this variable to attach_count. Or if preferred I can
alternatively only use the kobject reference counter and remove this variable
completely though I would loose information about how often the VAS is attached to a
task because the kobject reference counter is also used to keep track of other
variables referencing the VAS.

> > +/**
> > + * The sysfs structure we need to handle attributes of a VAS.
> > + **/
> > +struct vas_sysfs_attr {
> > +	struct attribute attr;
> > +	ssize_t (*show)(struct vas *vas, struct vas_sysfs_attr *vsattr,
> > +			char *buf);
> > +	ssize_t (*store)(struct vas *vas, struct vas_sysfs_attr *vsattr,
> > +			 const char *buf, size_t count);
> > +};
> > +
> > +#define VAS_SYSFS_ATTR(NAME, MODE, SHOW, STORE)				\
> > +static struct vas_sysfs_attr vas_sysfs_attr_##NAME =			\
> > +	__ATTR(NAME, MODE, SHOW, STORE)
> 
> __ATTR_RO and __ATTR_RW should work better for you.  If you really need
> this.

Thank you. I will have a look at these functions.

> Oh, and where is the Documentation/ABI/ updates to try to describe the
> sysfs structure and files?  Did I miss that in the series?

Oh sorry, I forgot to add this file. I will add the ABI descriptions for future
submissions.

> > +static ssize_t __show_vas_name(struct vas *vas, struct vas_sysfs_attr *vsattr,
> > +			       char *buf)
> > +{
> > +	return scnprintf(buf, PAGE_SIZE, "%s", vas->name);
> 
> It's a page size, just use sprintf() and be done with it.  No need to
> ever check, you "know" it will be correct.

OK. I was following the sysfs example in the documentation that used scnprintf, but
if sprintf is preferred, I can change this.

> Also, what about a trailing '\n' for these attributes?

I will change this.

> Oh wait, why have a name when the kobject name is already there in the
> directory itself?  Do you really need this?

See above.

> > +/**
> > + * The ktype data structure representing a VAS.
> > + **/
> > +static struct kobj_type vas_ktype = {
> > +	.sysfs_ops = &vas_sysfs_ops,
> > +	.release = __vas_release,
> 
> Why the odd __vas* naming?  What's wrong with vas_release?

I was using the __* naming scheme for functions that have no other meaning outside of
my source file. But I can change this if people don't like it. I have no strong
feelings about the names of the functions.

> > +	.default_attrs = vas_default_attr,
> > +};
> > +
> > +
> > +/***
> > + * Internally visible functions
> > + ***/
> > +
> > +/**
> > + * Working with the global VAS list.
> > + **/
> > +static inline void vas_remove(struct vas *vas)
> 
> <snip>
> 
> You have a ton of inline functions, for no good reason.  Make them all
> "real" functions please.  Unless you can measure the size/speed
> differences?  If so, please say so.

There was no specific reason why I declared the functions as inline except my hope to
reduce the function call for some of my very small functions. I can look more closely
at this and check whether there is some real benefit in inlining them and if not
remove it.

Thank you very much.

Till

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From - Thu Nov 08 21:39:44 2018
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From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
Date: Mon, 13 Mar 2017 17:39:35 -0700
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Cc: Till Smejkal <till.smejkal@googlemail.com>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	Vineet Gupta <vgupta@synopsys.com>,
	Russell King <linux@armlinux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>, Steven Miao <realmz6@gmail.com>,
	Richard Kuo <rkuo@codeaurora.org>, Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
	James Hogan <james.hogan@imgtec.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	"David S. Miller" <davem
To: Richard Henderson <rth@twiddle.net>
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On Tue, 14 Mar 2017, Richard Henderson wrote:
> On 03/14/2017 08:14 AM, Till Smejkal wrote:
> > At the current state of the development, first class virtual address spaces
> > have one limitation, that we haven't been able to solve so far. The feature
> > allows, that different threads of the same process can execute in different
> > AS at the same time. This is possible, because the VAS-switch operation
> > only changes the active mm_struct for the task_struct of the calling
> > thread. However, when a thread switches into a first class virtual address
> > space, some parts of its original AS are duplicated into the new one to
> > allow the thread to continue its execution at its current state.
> > Accordingly, parts of the processes AS (e.g. the code section, data
> > section, heap section and stack sections) exist in multiple AS if the
> > process has a VAS attached to it. Changes to these shared memory regions
> > are synchronized between the address spaces whenever a thread switches
> > between two of them. Unfortunately, in some scenarios the kernel is not
> > able to properly synchronize all these shared memory regions because of
> > conflicting changes. One such example happens if there are two threads, one
> > executing in an attached first class virtual address space, the other in
> > the tasks original address space. If both threads make changes to the heap
> > section that cause expansion of the underlying vm_area_struct, the kernel
> > cannot correctly synchronize these changes, because that would cause parts
> > of the virtual address space to be overwritten with unrelated data. In the
> > current implementation such conflicts are only detected but not resolved
> > and result in an error code being returned by the kernel during the VAS
> > switch operation. Unfortunately, that means for the particular thread that
> > tried to make the switch, that it cannot do this anymore in the future and
> > accordingly has to be killed.
> 
> This sounds like a fairly fundamental problem to me.

Yes I agree. This is a significant limitation of first class virtual address spaces.
However, conflict like this can be mitigated by being careful in the application
that uses multiple first class virtual address spaces. If all threads make sure that
they never resize shared memory regions when executing inside a VAS such conflicts do
not occur. Another possibility that I investigated but not yet finished is that such
resizes of shared memory regions have to be synchronized more frequently than just at
every switch between VASes. If one for example "forward" memory region resizes to all
AS that share this particular memory region during the resize operation, one can
completely eliminate this problem. Unfortunately, this introduces a significant cost
and introduces a difficult to handle race condition.

> Is this an indication that full virtual address spaces are useless?  It
> would seem like if you only use virtual address segments then you avoid all
> of the problems with executing code, active stacks, and brk.

What do you mean with *virtual address segments*? The nice part of first class
virtual address spaces is that one can share/reuse collections of address space
segments easily.

Till

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Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
Date: Mon, 13 Mar 2017 17:58:01 -0700
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To: Till Smejkal <till.smejkal@googlemail.com>
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On Mon, Mar 13, 2017 at 3:14 PM, Till Smejkal
<till.smejkal@googlemail.com> wrote:
> This patchset extends the kernel memory management subsystem with a new
> type of address spaces (called VAS) which can be created and destroyed
> independently of processes by a user in the system. During its lifetime
> such a VAS can be attached to processes by the user which allows a process
> to have multiple address spaces and thereby multiple, potentially
> different, views on the system's main memory. During its execution the
> threads belonging to the process are able to switch freely between the
> different attached VAS and the process' original AS enabling them to
> utilize the different available views on the memory.

Sounds like the old SKAS feature for UML.

> In addition to the concept of first class virtual address spaces, this
> patchset introduces yet another feature called VAS segments. VAS segments
> are memory regions which have a fixed size and position in the virtual
> address space and can be shared between multiple first class virtual
> address spaces. Such shareable memory regions are especially useful for
> in-memory pointer-based data structures or other pure in-memory data.

This sounds rather complicated.  Getting TLB flushing right seems
tricky.  Why not just map the same thing into multiple mms?

>
>             |     VAS     |  processes  |
>     -------------------------------------
>     switch  |       468ns |      1944ns |

The solution here is IMO to fix the scheduler.

Also, FWIW, I have patches (that need a little work) that will make
switch_mm() waaaay faster on x86.

> At the current state of the development, first class virtual address spaces
> have one limitation, that we haven't been able to solve so far. The feature
> allows, that different threads of the same process can execute in different
> AS at the same time. This is possible, because the VAS-switch operation
> only changes the active mm_struct for the task_struct of the calling
> thread. However, when a thread switches into a first class virtual address
> space, some parts of its original AS are duplicated into the new one to
> allow the thread to continue its execution at its current state.

Ick.  Please don't do this.  Can we please keep an mm as just an mm
and not make it look magically different depending on which process
maps it?  If you need a trampoline (which you do, of course), just
write a trampoline in regular user code and map it manually.

--Andy

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Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
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To: Richard Henderson <rth@twiddle.net>
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On Tue, 14 Mar 2017, Richard Henderson wrote:
> On 03/14/2017 10:39 AM, Till Smejkal wrote:
> > > Is this an indication that full virtual address spaces are useless?  It
> > > would seem like if you only use virtual address segments then you avoid all
> > > of the problems with executing code, active stacks, and brk.
> > 
> > What do you mean with *virtual address segments*? The nice part of first class
> > virtual address spaces is that one can share/reuse collections of address space
> > segments easily.
> 
> What do *I* mean?  You introduced the term, didn't you?
> Rereading your original I see you called them "VAS segments".

Oh, I am sorry. I thought that you were referring to some other feature that I don't
know.

> Anyway, whatever they are called, it would seem that these segments do not
> require any of the syncing mechanisms that are causing you problems.

Yes, VAS segments provide a possibility to share memory regions between multiple
address spaces without the need to synchronize heap, stack, etc. Unfortunately, the
VAS segment feature itself without the whole concept of first class virtual address
spaces is not as powerful. With some additional work it can probably be represented
with the existing shmem functionality.

The first class virtual address space feature on the other side provides a real
benefit for applications in our opinion namely that an application can switch between
different views on its memory which enables various interesting programming paradigms
as mentioned in the cover letter.

Till

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Subject: Re: [RFC PATCH 10/13] mm: Introduce first class virtual address
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+CC Ingo, tglx

Hi Till,

On 03/13/2017 03:14 PM, Till Smejkal wrote:
> Introduce a different type of address spaces which are first class citizens
> in the OS. That means that the kernel now handles two types of AS, those
> which are closely coupled with a process and those which aren't. While the
> former ones are created and destroyed together with the process by the
> kernel and are the default type of AS in the Linux kernel, the latter ones
> have to be managed explicitly by the user and are the newly introduced
> type.
> 
> Accordingly, a first class AS (also called VAS == virtual address space)
> can exist in the OS independently from any process. A user has to
> explicitly create and destroy them in the system. Processes and VAS can be
> combined by attaching a previously created VAS to a process which basically
> adds an additional AS to the process that the process' threads are able to
> execute in. Hence, VAS allow a process to have different views onto the
> main memory of the system (its original AS and the attached VAS) between
> which its threads can switch arbitrarily during their lifetime.
> 
> The functionality made available through first class virtual address spaces
> can be used in various different ways. One possible way to utilize VAS is
> to compartmentalize a process for security reasons. Another possible usage
> is to improve the performance of data-centric applications by being able to
> manage different sets of data in memory without the need to map or unmap
> them.
> 
> Furthermore, first class virtual address spaces can be attached to
> different processes at the same time if the underlying memory is only
> readable. This mechanism allows sharing of whole address spaces between
> multiple processes that can both execute in them using the contained
> memory.

I've not looked at the patches closely (or read the references paper fully yet),
but at first glance it seems on ARC architecture, we can can potentially
use/leverage this mechanism to implement the shared TLB entries. Before anyone
shouts these are not same as the IA64/x86 protection keys which allow TLB entries
with different protection bits across processes etc. These TLB entries are
actually *shared* by processes.

Conceptually there's shared address spaces, independent of processes. e.g. ldso
code is shared address space #1, libc (code) #2 .... System can support a limited
number of shared addr spaces (say 64, enough for typical embedded sys).

While Normal TLB entries are tagged with ASID (Addr space ID) to keep them unique
across processes, Shared TLB entries are tagged with Shared address space ID.

A process MMU context consists of ASID (a single number) and a SASID bitmap (to
allow "subscription" to multiple Shared spaces. The subscriptions are set up bu
userspace ld.so which knows about the libs process wants to map.

The restriction ofcourse is that the spaces are mapped at *same* vaddr is all
participating processes. I know this goes against whole security, address space
randomization - but it gives much better real time performance. Why does each
process need to take a MMU exception for libc code...

So long story short - it seems there can be multiple uses of this infrastructure !

-Vineet

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From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.aio.general,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
Date: Mon, 13 Mar 2017 19:07:09 -0700
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	Heiko Carstens <heiko.carstens@de.ibm.com>,
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To: Andy Lutomirski <luto@kernel.org>
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On Mon, 13 Mar 2017, Andy Lutomirski wrote:
> On Mon, Mar 13, 2017 at 3:14 PM, Till Smejkal
> <till.smejkal@googlemail.com> wrote:
> > This patchset extends the kernel memory management subsystem with a new
> > type of address spaces (called VAS) which can be created and destroyed
> > independently of processes by a user in the system. During its lifetime
> > such a VAS can be attached to processes by the user which allows a process
> > to have multiple address spaces and thereby multiple, potentially
> > different, views on the system's main memory. During its execution the
> > threads belonging to the process are able to switch freely between the
> > different attached VAS and the process' original AS enabling them to
> > utilize the different available views on the memory.
> 
> Sounds like the old SKAS feature for UML.

I haven't heard of this feature before, but after shortly looking at the description
on the UML website it actually has some similarities with what I am proposing. But as
far as I can see this was not merged into the mainline kernel, was it? In addition, I
think that first class virtual address spaces goes even one step further by allowing
AS to live independently of processes.

> > In addition to the concept of first class virtual address spaces, this
> > patchset introduces yet another feature called VAS segments. VAS segments
> > are memory regions which have a fixed size and position in the virtual
> > address space and can be shared between multiple first class virtual
> > address spaces. Such shareable memory regions are especially useful for
> > in-memory pointer-based data structures or other pure in-memory data.
> 
> This sounds rather complicated.  Getting TLB flushing right seems
> tricky.  Why not just map the same thing into multiple mms?

This is exactly what happens at the end. The memory region that is described by the
VAS segment will be mapped in the ASes that use the segment.

> >
> >             |     VAS     |  processes  |
> >     -------------------------------------
> >     switch  |       468ns |      1944ns |
> 
> The solution here is IMO to fix the scheduler.

IMHO it will be very difficult for the scheduler code to reach the same switching
time as the pure VAS switch because switching between VAS does not involve saving any
registers or FPU state and does not require selecting the next runnable task. VAS
switch is basically a system call that just changes the AS of the current thread
which makes it a very lightweight operation.

> Also, FWIW, I have patches (that need a little work) that will make
> switch_mm() waaaay faster on x86.

These patches will also improve the speed of the VAS switch operation. We are also
using the switch_mm function in the background to perform the actual hardware switch
between the two ASes. The main reason why the VAS switch is faster than the task
switch is that it just has to do fewer things.

> > At the current state of the development, first class virtual address spaces
> > have one limitation, that we haven't been able to solve so far. The feature
> > allows, that different threads of the same process can execute in different
> > AS at the same time. This is possible, because the VAS-switch operation
> > only changes the active mm_struct for the task_struct of the calling
> > thread. However, when a thread switches into a first class virtual address
> > space, some parts of its original AS are duplicated into the new one to
> > allow the thread to continue its execution at its current state.
> 
> Ick.  Please don't do this.  Can we please keep an mm as just an mm
> and not make it look magically different depending on which process
> maps it?  If you need a trampoline (which you do, of course), just
> write a trampoline in regular user code and map it manually.

Did I understand you correctly that you are proposing that the switching thread
should make sure by itself that its code, stack, … memory regions are properly setup
in the new AS before/after switching into it? I think, this would make using first
class virtual address spaces much more difficult for user applications to the extend
that I am not even sure if they can be used at all. At the moment, switching into a
VAS is a very simple operation for an application because the kernel will just simply
do the right thing.

Till

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From - Thu Nov 08 21:39:44 2018
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From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.aio.general,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: Re: [RFC PATCH 10/13] mm: Introduce first class virtual address
 spaces
Date: Mon, 13 Mar 2017 19:34:27 -0700
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Cc: Till Smejkal <till.smejkal@googlemail.com>,
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	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
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	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	"David S. Miller" <dav
To: Vineet Gupta <Vineet.Gupta1@synopsys.com>
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Hi Vineet,

On Mon, 13 Mar 2017, Vineet Gupta wrote:
> I've not looked at the patches closely (or read the references paper fully yet),
> but at first glance it seems on ARC architecture, we can can potentially
> use/leverage this mechanism to implement the shared TLB entries. Before anyone
> shouts these are not same as the IA64/x86 protection keys which allow TLB entries
> with different protection bits across processes etc. These TLB entries are
> actually *shared* by processes.
> 
> Conceptually there's shared address spaces, independent of processes. e.g. ldso
> code is shared address space #1, libc (code) #2 .... System can support a limited
> number of shared addr spaces (say 64, enough for typical embedded sys).
> 
> While Normal TLB entries are tagged with ASID (Addr space ID) to keep them unique
> across processes, Shared TLB entries are tagged with Shared address space ID.
> 
> A process MMU context consists of ASID (a single number) and a SASID bitmap (to
> allow "subscription" to multiple Shared spaces. The subscriptions are set up bu
> userspace ld.so which knows about the libs process wants to map.
> 
> The restriction ofcourse is that the spaces are mapped at *same* vaddr is all
> participating processes. I know this goes against whole security, address space
> randomization - but it gives much better real time performance. Why does each
> process need to take a MMU exception for libc code...
> 
> So long story short - it seems there can be multiple uses of this infrastructure !

During the development of this code, we also looked at shared TLB entries, but
the other way around. We wanted to use them to prevent flushing of TLB entries of
shared memory regions when switching between multiple ASes. Unfortunately, we never
finished this part of the code.

However, we also investigated into a different use-case for first class virtual
address spaces that is related to what you propose if I didn't understand something
wrong. The idea is to move shared libraries into their own first class virtual
address space and only load some small trampoline code in the application AS. This
trampoline code performs the VAS switch in the libraries AS and execute the requested
function there. If we combine this architecture with tagged TLB entries to prevent
TLB flushes during the switch operation, it can also reach an acceptable performance.
A side effect of moving the shared library into its own AS is that it can not be used
by ROP-attacks because it is not accessible in the application's AS.

Till

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From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] parisc: perf: Handle return NULL error from ioremap_nocache.
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Here, If ioremap_nocache will fail. It will return NULL.
Kernel can run into a NULL-pointer dereference.
This error check will avoid NULL pointer dereference.

This patch will remove coding style errors.
   - ERROR: code indent should use tabs where possible.
   - ERROR: trailing whitespace.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 arch/parisc/kernel/perf.c | 90 +++++++++++++++++++++++++----------------------
 1 file changed, 47 insertions(+), 43 deletions(-)

diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index e282a51..4313624 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -39,7 +39,7 @@
  *  the PDC INTRIGUE calls.  This is done to eliminate bugs introduced
  *  in various PDC revisions.  The code is much more maintainable
  *  and reliable this way vs having to debug on every version of PDC
- *  on every box. 
+ *  on every box.
  */
 
 #include <linux/capability.h>
@@ -195,7 +195,7 @@ struct rdr_tbl_ent {
 static int perf_release(struct inode *inode, struct file *file);
 static int perf_open(struct inode *inode, struct file *file);
 static ssize_t perf_read(struct file *file, char __user *buf, size_t cnt, loff_t *ppos);
-static ssize_t perf_write(struct file *file, const char __user *buf, size_t count, 
+static ssize_t perf_write(struct file *file, const char __user *buf, size_t count,
 	loff_t *ppos);
 static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 static void perf_start_counters(void);
@@ -222,7 +222,7 @@ static ssize_t perf_write(struct file *file, const char __user *buf, size_t coun
 /*
  * configure:
  *
- * Configure the cpu with a given data image.  First turn off the counters, 
+ * Configure the cpu with a given data image.  First turn off the counters,
  * then download the image, then turn the counters back on.
  */
 static int perf_config(uint32_t *image_ptr)
@@ -234,7 +234,7 @@ static int perf_config(uint32_t *image_ptr)
 	error = perf_stop_counters(raddr);
 	if (error != 0) {
 		printk("perf_config: perf_stop_counters = %ld\n", error);
-		return -EINVAL; 
+		return -EINVAL;
 	}
 
 printk("Preparing to write image\n");
@@ -242,7 +242,7 @@ static int perf_config(uint32_t *image_ptr)
 	error = perf_write_image((uint64_t *)image_ptr);
 	if (error != 0) {
 		printk("perf_config: DOWNLOAD = %ld\n", error);
-		return -EINVAL; 
+		return -EINVAL;
 	}
 
 printk("Preparing to start counters\n");
@@ -254,7 +254,7 @@ static int perf_config(uint32_t *image_ptr)
 }
 
 /*
- * Open the device and initialize all of its memory.  The device is only 
+ * Open the device and initialize all of its memory.  The device is only
  * opened once, but can be "queried" by multiple processes that know its
  * file descriptor.
  */
@@ -298,7 +298,7 @@ static ssize_t perf_read(struct file *file, char __user *buf, size_t cnt, loff_t
  * called on the processor that the download should happen
  * on.
  */
-static ssize_t perf_write(struct file *file, const char __user *buf, size_t count, 
+static ssize_t perf_write(struct file *file, const char __user *buf, size_t count,
 	loff_t *ppos)
 {
 	size_t image_size;
@@ -306,11 +306,11 @@ static ssize_t perf_write(struct file *file, const char __user *buf, size_t coun
 	uint32_t interface_type;
 	uint32_t test;
 
-	if (perf_processor_interface == ONYX_INTF) 
+	if (perf_processor_interface == ONYX_INTF)
 		image_size = PCXU_IMAGE_SIZE;
-	else if (perf_processor_interface == CUDA_INTF) 
+	else if (perf_processor_interface == CUDA_INTF)
 		image_size = PCXW_IMAGE_SIZE;
-	else 
+	else
 		return -EFAULT;
 
 	if (!capable(CAP_SYS_ADMIN))
@@ -330,22 +330,22 @@ static ssize_t perf_write(struct file *file, const char __user *buf, size_t coun
 
 	/* First check the machine type is correct for
 	   the requested image */
-        if (((perf_processor_interface == CUDA_INTF) &&
-		       (interface_type != CUDA_INTF)) ||
-	    ((perf_processor_interface == ONYX_INTF) &&
-	               (interface_type != ONYX_INTF))) 
+	if (((perf_processor_interface == CUDA_INTF) &&
+			(interface_type != CUDA_INTF)) ||
+		((perf_processor_interface == ONYX_INTF) &&
+			(interface_type != ONYX_INTF)))
 		return -EINVAL;
 
 	/* Next check to make sure the requested image
 	   is valid */
-	if (((interface_type == CUDA_INTF) && 
+	if (((interface_type == CUDA_INTF) &&
 		       (test >= MAX_CUDA_IMAGES)) ||
-	    ((interface_type == ONYX_INTF) && 
-		       (test >= MAX_ONYX_IMAGES))) 
+	    ((interface_type == ONYX_INTF) &&
+		       (test >= MAX_ONYX_IMAGES)))
 		return -EINVAL;
 
 	/* Copy the image into the processor */
-	if (interface_type == CUDA_INTF) 
+	if (interface_type == CUDA_INTF)
 		return perf_config(cuda_images[test]);
 	else
 		return perf_config(onyx_images[test]);
@@ -359,7 +359,7 @@ static ssize_t perf_write(struct file *file, const char __user *buf, size_t coun
 static void perf_patch_images(void)
 {
 #if 0 /* FIXME!! */
-/* 
+/*
  * NOTE:  this routine is VERY specific to the current TLB image.
  * If the image is changed, this routine might also need to be changed.
  */
@@ -367,9 +367,9 @@ static void perf_patch_images(void)
 	extern void $i_dtlb_miss_2_0();
 	extern void PA2_0_iva();
 
-	/* 
+	/*
 	 * We can only use the lower 32-bits, the upper 32-bits should be 0
-	 * anyway given this is in the kernel 
+	 * anyway given this is in the kernel
 	 */
 	uint32_t itlb_addr  = (uint32_t)&($i_itlb_miss_2_0);
 	uint32_t dtlb_addr  = (uint32_t)&($i_dtlb_miss_2_0);
@@ -377,21 +377,21 @@ static void perf_patch_images(void)
 
 	if (perf_processor_interface == ONYX_INTF) {
 		/* clear last 2 bytes */
-		onyx_images[TLBMISS][15] &= 0xffffff00;  
+		onyx_images[TLBMISS][15] &= 0xffffff00;
 		/* set 2 bytes */
 		onyx_images[TLBMISS][15] |= (0x000000ff&((dtlb_addr) >> 24));
 		onyx_images[TLBMISS][16] = (dtlb_addr << 8)&0xffffff00;
 		onyx_images[TLBMISS][17] = itlb_addr;
 
 		/* clear last 2 bytes */
-		onyx_images[TLBHANDMISS][15] &= 0xffffff00;  
+		onyx_images[TLBHANDMISS][15] &= 0xffffff00;
 		/* set 2 bytes */
 		onyx_images[TLBHANDMISS][15] |= (0x000000ff&((dtlb_addr) >> 24));
 		onyx_images[TLBHANDMISS][16] = (dtlb_addr << 8)&0xffffff00;
 		onyx_images[TLBHANDMISS][17] = itlb_addr;
 
 		/* clear last 2 bytes */
-		onyx_images[BIG_CPI][15] &= 0xffffff00;  
+		onyx_images[BIG_CPI][15] &= 0xffffff00;
 		/* set 2 bytes */
 		onyx_images[BIG_CPI][15] |= (0x000000ff&((dtlb_addr) >> 24));
 		onyx_images[BIG_CPI][16] = (dtlb_addr << 8)&0xffffff00;
@@ -404,24 +404,24 @@ static void perf_patch_images(void)
 
 	} else if (perf_processor_interface == CUDA_INTF) {
 		/* Cuda interface */
-		cuda_images[TLBMISS][16] =  
+		cuda_images[TLBMISS][16] =
 			(cuda_images[TLBMISS][16]&0xffff0000) |
 			((dtlb_addr >> 8)&0x0000ffff);
-		cuda_images[TLBMISS][17] = 
+		cuda_images[TLBMISS][17] =
 			((dtlb_addr << 24)&0xff000000) | ((itlb_addr >> 16)&0x000000ff);
 		cuda_images[TLBMISS][18] = (itlb_addr << 16)&0xffff0000;
 
-		cuda_images[TLBHANDMISS][16] = 
+		cuda_images[TLBHANDMISS][16] =
 			(cuda_images[TLBHANDMISS][16]&0xffff0000) |
 			((dtlb_addr >> 8)&0x0000ffff);
-		cuda_images[TLBHANDMISS][17] = 
+		cuda_images[TLBHANDMISS][17] =
 			((dtlb_addr << 24)&0xff000000) | ((itlb_addr >> 16)&0x000000ff);
 		cuda_images[TLBHANDMISS][18] = (itlb_addr << 16)&0xffff0000;
 
-		cuda_images[BIG_CPI][16] = 
+		cuda_images[BIG_CPI][16] =
 			(cuda_images[BIG_CPI][16]&0xffff0000) |
 			((dtlb_addr >> 8)&0x0000ffff);
-		cuda_images[BIG_CPI][17] = 
+		cuda_images[BIG_CPI][17] =
 			((dtlb_addr << 24)&0xff000000) | ((itlb_addr >> 16)&0x000000ff);
 		cuda_images[BIG_CPI][18] = (itlb_addr << 16)&0xffff0000;
 	} else {
@@ -433,7 +433,7 @@ static void perf_patch_images(void)
 
 /*
  * ioctl routine
- * All routines effect the processor that they are executed on.  Thus you 
+ * All routines effect the processor that they are executed on.  Thus you
  * must be running on the processor that you wish to change.
  */
 
@@ -459,7 +459,7 @@ static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 			}
 
 			/* copy out the Counters */
-			if (copy_to_user((void __user *)arg, raddr, 
+			if (copy_to_user((void __user *)arg, raddr,
 					sizeof (raddr)) != 0) {
 				error =  -EFAULT;
 				break;
@@ -487,7 +487,7 @@ static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	.open = perf_open,
 	.release = perf_release
 };
-	
+
 static struct miscdevice perf_dev = {
 	MISC_DYNAMIC_MINOR,
 	PA_PERF_DEV,
@@ -595,7 +595,7 @@ static int perf_stop_counters(uint32_t *raddr)
 		/* OR sticky2 (bit 1496) to counter2 bit 32 */
 		tmp64 |= (userbuf[23] >> 8) & 0x0000000080000000;
 		raddr[2] = (uint32_t)tmp64;
-		
+
 		/* Counter3 is bits 1497 to 1528 */
 		tmp64 =  (userbuf[23] >> 7) & 0x00000000ffffffff;
 		/* OR sticky3 (bit 1529) to counter3 bit 32 */
@@ -617,7 +617,7 @@ static int perf_stop_counters(uint32_t *raddr)
 		userbuf[22] = 0;
 		userbuf[23] = 0;
 
-		/* 
+		/*
 		 * Write back the zeroed bytes + the image given
 		 * the read was destructive.
 		 */
@@ -625,13 +625,13 @@ static int perf_stop_counters(uint32_t *raddr)
 	} else {
 
 		/*
-		 * Read RDR-15 which contains the counters and sticky bits 
+		 * Read RDR-15 which contains the counters and sticky bits
 		 */
 		if (!perf_rdr_read_ubuf(15, userbuf)) {
 			return -13;
 		}
 
-		/* 
+		/*
 		 * Clear out the counters
 		 */
 		perf_rdr_clear(15);
@@ -644,7 +644,7 @@ static int perf_stop_counters(uint32_t *raddr)
 		raddr[2] = (uint32_t)((userbuf[1] >> 32) & 0x00000000ffffffffUL);
 		raddr[3] = (uint32_t)(userbuf[1] & 0x00000000ffffffffUL);
 	}
- 
+
 	return 0;
 }
 
@@ -682,7 +682,7 @@ static int perf_rdr_read_ubuf(uint32_t	rdr_num, uint64_t *buffer)
 	i = tentry->num_words;
 	while (i--) {
 		buffer[i] = 0;
-	}	
+	}
 
 	/* Check for bits an even number of 64 */
 	if ((xbits = width & 0x03f) != 0) {
@@ -808,18 +808,22 @@ static int perf_write_image(uint64_t *memaddr)
 	}
 
 	runway = ioremap_nocache(cpu_device->hpa.start, 4096);
+	if (!runway) {
+		printk(KERN_ERR "write_image: virtual mapping failed!\n");
+		return -ENOMEM;
+	}
 
 	/* Merge intrigue bits into Runway STATUS 0 */
 	tmp64 = __raw_readq(runway + RUNWAY_STATUS) & 0xffecfffffffffffful;
-	__raw_writeq(tmp64 | (*memaddr++ & 0x0013000000000000ul), 
+	__raw_writeq(tmp64 | (*memaddr++ & 0x0013000000000000ul),
 		     runway + RUNWAY_STATUS);
-	
+
 	/* Write RUNWAY DEBUG registers */
 	for (i = 0; i < 8; i++) {
 		__raw_writeq(*memaddr++, runway + RUNWAY_DEBUG);
 	}
 
-	return 0; 
+	return 0;
 }
 
 /*
@@ -843,7 +847,7 @@ static void perf_rdr_write(uint32_t rdr_num, uint64_t *buffer)
 			perf_rdr_shift_out_U(rdr_num, buffer[i]);
 		} else {
 			perf_rdr_shift_out_W(rdr_num, buffer[i]);
-		}	
+		}
 	}
 printk("perf_rdr_write done\n");
 }
-- 
1.9.1

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From - Thu Nov 08 21:39:44 2018
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Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.ports.mips.general,gmane.linux.alsa.devel,gmane.linux.ports.ia64,gmane.linux.kernel.mm,gmane.linux.drivers.mtd,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.kernel.arc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.api,gmane.linux.usb.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.file-systems,gmane.linux.ports.ppc64.devel
Subject: RE: [RFC PATCH 07/13] kernel/fork: Split and export 'mm_alloc' and
 'mm_init'
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From: Linuxppc-dev Till Smejkal
> Sent: 13 March 2017 22:14
> The only way until now to create a new memory map was via the exported
> function 'mm_alloc'. Unfortunately, this function not only allocates a ne=
w
> memory map, but also completely initializes it. However, with the
> introduction of first class virtual address spaces, some initialization
> steps done in 'mm_alloc' are not applicable to the memory maps needed for
> this feature and hence would lead to errors in the kernel code.
>=20
> Instead of introducing a new function that can allocate and initialize
> memory maps for first class virtual address spaces and potentially
> duplicate some code, I decided to split the mm_alloc function as well as
> the 'mm_init' function that it uses.
>=20
> Now there are four functions exported instead of only one. The new
> 'mm_alloc' function only allocates a new mm_struct and zeros it out. If o=
ne
> want to have the old behavior of mm_alloc one can use the newly introduce=
d
> function 'mm_alloc_and_setup' which not only allocates a new mm_struct bu=
t
> also fully initializes it.
...

That looks like bugs waiting to happen.
You need unchanged code to fail to compile.

	David


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From - Thu Nov 08 21:39:44 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: support R_PARISC_SECREL32 relocation in modules
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The parisc kernel doesn't work with CONFIG_MODVERSIONS since the commit
71810db27c1c853b335675bee335d893bc3d324b. It can't load modules with the
error: "module unix: Unknown relocation: 41".

The commit changes __kcrctab from 64-bit valus to 32-bit values. The
assembler generates R_PARISC_SECREL32 secrel relocation for them and the
module loader doesn't support this relocation.

This patch adds the R_PARISC_SECREL32 relocation to the module loader.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org	# v4.10+

---
 arch/parisc/kernel/module.c |    8 ++++++++
 1 file changed, 8 insertions(+)

Index: linux-4.11-rc2/arch/parisc/kernel/module.c
===================================================================
--- linux-4.11-rc2.orig/arch/parisc/kernel/module.c
+++ linux-4.11-rc2/arch/parisc/kernel/module.c
@@ -620,6 +620,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs
 			 */
 			*loc = fsel(val, addend); 
 			break;
+		case R_PARISC_SECREL32:
+			/* 32-bit section relative address. */
+			*loc = fsel(val, addend);
+			break;
 		case R_PARISC_DPREL21L:
 			/* left 21 bit of relative address */
 			val = lrsel(val - dp, addend);
@@ -807,6 +811,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs
 			 */
 			*loc = fsel(val, addend); 
 			break;
+		case R_PARISC_SECREL32:
+			/* 32-bit section relative address. */
+			*loc = fsel(val, addend);
+			break;
 		case R_PARISC_FPTR64:
 			/* 64-bit function address */
 			if(in_local(me, (void *)(val + addend))) {
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From - Thu Nov 08 21:39:44 2018
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Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
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To: Andy Lutomirski <luto@amacapital.net>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.aio.general/4963>

On Mon, 13 Mar 2017, Andy Lutomirski wrote:
> On Mon, Mar 13, 2017 at 7:07 PM, Till Smejkal
> <till.smejkal@googlemail.com> wrote:
> > On Mon, 13 Mar 2017, Andy Lutomirski wrote:
> >> This sounds rather complicated.  Getting TLB flushing right seems
> >> tricky.  Why not just map the same thing into multiple mms?
> >
> > This is exactly what happens at the end. The memory region that is described by the
> > VAS segment will be mapped in the ASes that use the segment.
> 
> So why is this kernel feature better than just doing MAP_SHARED
> manually in userspace?

One advantage of VAS segments is that they can be globally queried by user programs
which means that VAS segments can be shared by applications that not necessarily have
to be related. If I am not mistaken, MAP_SHARED of pure in memory data will only work
if the tasks that share the memory region are related (aka. have a common parent that
initialized the shared mapping). Otherwise, the shared mapping have to be backed by a
file. VAS segments on the other side allow sharing of pure in memory data by
arbitrary related tasks without the need of a file. This becomes especially
interesting if one combines VAS segments with non-volatile memory since one can keep
data structures in the NVM and still be able to share them between multiple tasks.

> >> Ick.  Please don't do this.  Can we please keep an mm as just an mm
> >> and not make it look magically different depending on which process
> >> maps it?  If you need a trampoline (which you do, of course), just
> >> write a trampoline in regular user code and map it manually.
> >
> > Did I understand you correctly that you are proposing that the switching thread
> > should make sure by itself that its code, stack, … memory regions are properly setup
> > in the new AS before/after switching into it? I think, this would make using first
> > class virtual address spaces much more difficult for user applications to the extend
> > that I am not even sure if they can be used at all. At the moment, switching into a
> > VAS is a very simple operation for an application because the kernel will just simply
> > do the right thing.
> 
> Yes.  I think that having the same mm_struct look different from
> different tasks is problematic.  Getting it right in the arch code is
> going to be nasty.  The heuristics of what to share are also tough --
> why would text + data + stack or whatever you're doing be adequate?
> What if you're in a thread?  What if two tasks have their stacks in
> the same place?

The different ASes that a task now can have when it uses first class virtual address
spaces are not realized in the kernel by using only one mm_struct per task that just
looks differently but by using multiple mm_structs - one for each AS that the task
can execute in. When a task attaches a first class virtual address space to itself to
be able to use another AS, the kernel adds a temporary mm_struct to this task that
contains the mappings of the first class virtual address space and the one shared
with the task's original AS. If a thread now wants to switch into this attached first
class virtual address space the kernel only changes the 'mm' and 'active_mm' pointers
in the task_struct of the thread to the temporary mm_struct and performs the
corresponding mm_switch operation. The original mm_struct of the thread will not be
changed.

Accordingly, I do not magically make mm_structs look differently depending on the
task that uses it, but create temporary mm_structs that only contain mappings to the
same memory regions.

I agree that finding a good heuristics of what to share is difficult. At the moment,
all memory regions that are available in the task's original AS will also be
available when a thread switches into an attached first class virtual address space
(aka. are shared). That means that VAS can mainly be used to extend the AS of a task
in the current state of the implementation. The reason why I implemented the sharing
in this way is that I didn't want to break shared libraries. If I only share
code+heap+stack, shared libraries would not work anymore after switching into a VAS.

> I could imagine something like a sigaltstack() mode that lets you set
> a signal up to also switch mm could be useful.

This is a very interesting idea. I will keep it in mind for future use cases of
multiple virtual address spaces per task.

Thanks
Till

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From - Thu Nov 08 21:39:45 2018
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From: Till Smejkal <till.smejkal@googlemail.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.alsa.devel,gmane.linux.ports.ia64,gmane.linux.kernel.aio.general,gmane.linux.drivers.mtd,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.kernel.arc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.api,gmane.linux.usb.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.file-systems,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC PATCH 07/13] kernel/fork: Split and export 'mm_alloc' and
 'mm_init'
Date: Tue, 14 Mar 2017 09:18:55 -0700
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Cc: 'Till Smejkal' <till.smejkal@googlemail.com>,
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	Rich Felker <dal
To: David Laight <David.Laight@ACULAB.COM>
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On Tue, 14 Mar 2017, David Laight wrote:
> From: Linuxppc-dev Till Smejkal
> > Sent: 13 March 2017 22:14
> > The only way until now to create a new memory map was via the exported
> > function 'mm_alloc'. Unfortunately, this function not only allocates a new
> > memory map, but also completely initializes it. However, with the
> > introduction of first class virtual address spaces, some initialization
> > steps done in 'mm_alloc' are not applicable to the memory maps needed for
> > this feature and hence would lead to errors in the kernel code.
> > 
> > Instead of introducing a new function that can allocate and initialize
> > memory maps for first class virtual address spaces and potentially
> > duplicate some code, I decided to split the mm_alloc function as well as
> > the 'mm_init' function that it uses.
> > 
> > Now there are four functions exported instead of only one. The new
> > 'mm_alloc' function only allocates a new mm_struct and zeros it out. If one
> > want to have the old behavior of mm_alloc one can use the newly introduced
> > function 'mm_alloc_and_setup' which not only allocates a new mm_struct but
> > also fully initializes it.
> ...
> 
> That looks like bugs waiting to happen.
> You need unchanged code to fail to compile.

Thank you for this hint. I can give the new mm_alloc function a different name so
that code that uses the *old* mm_alloc function will fail to compile. I just reused
the old name when I wrote the code, because mm_alloc was only used in very few
locations in the kernel (2 times in the whole kernel source) which made identifying
and changing them very easy. I also don't think that there will be many users in the
kernel for mm_alloc in the future because it is a relatively low level data
structure. But if it is better to use a different name for the new function, I am
very happy to change this.

Till

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On Tue, 14 Mar 2017, Chris Metcalf wrote:
> On 3/14/2017 12:12 PM, Till Smejkal wrote:
> > On Mon, 13 Mar 2017, Andy Lutomirski wrote:
> > > On Mon, Mar 13, 2017 at 7:07 PM, Till Smejkal
> > > <till.smejkal@googlemail.com> wrote:
> > > > On Mon, 13 Mar 2017, Andy Lutomirski wrote:
> > > > > This sounds rather complicated.  Getting TLB flushing right seems
> > > > > tricky.  Why not just map the same thing into multiple mms?
> > > > This is exactly what happens at the end. The memory region that is described by the
> > > > VAS segment will be mapped in the ASes that use the segment.
> > > So why is this kernel feature better than just doing MAP_SHARED
> > > manually in userspace?
> > One advantage of VAS segments is that they can be globally queried by user programs
> > which means that VAS segments can be shared by applications that not necessarily have
> > to be related. If I am not mistaken, MAP_SHARED of pure in memory data will only work
> > if the tasks that share the memory region are related (aka. have a common parent that
> > initialized the shared mapping). Otherwise, the shared mapping have to be backed by a
> > file.
> 
> True, but why is this bad?  The shared mapping will be memory resident
> regardless, even if backed by a file (unless swapped out under heavy
> memory pressure, but arguably that's a feature anyway).  More importantly,
> having a file name is a simple and consistent way of identifying such
> shared memory segments.
> 
> With a little work, you can also arrange to map such files into memory
> at a fixed address in all participating processes, thus making internal
> pointers work correctly.

I don't want to say that the interface provided by MAP_SHARED is bad. I am only
arguing that VAS segments and the interface that they provide have an advantage over
the existing ones in my opinion. However, Matthew Wilcox also suggested in some
earlier mail that VAS segments could be exported to user space via a special purpose
filesystem. This would enable users of VAS segments to also just use some special
files to setup the shared memory regions. But since the VAS segment itself already
knows where at has to be mapped in the virtual address space of the process, the
establishing of the shared memory region would be very easy for the user.

> > VAS segments on the other side allow sharing of pure in memory data by
> > arbitrary related tasks without the need of a file. This becomes especially
> > interesting if one combines VAS segments with non-volatile memory since one can keep
> > data structures in the NVM and still be able to share them between multiple tasks.
> 
> I am not fully up to speed on NV/pmem stuff, but isn't that exactly what
> the DAX mode is supposed to allow you to do?  If so, isn't sharing a
> mapped file on a DAX filesystem on top of pmem equivalent to what
> you're proposing?

If I read the documentation to DAX filesystems correctly, it is indeed possible to us
them to create files that life purely in NVM. I wasn't fully aware of this feature.
Thanks for the pointer.

However, the main contribution of this patchset is actually the idea of first class
virtual address spaces and that they can be used to allow processes to have multiple
different views on the system's main memory. For us, VAS segments were another logic
step in the same direction (from first class virtual address spaces to first class
address space segments). However, if there is already functionality in the Linux
kernel to achieve the exact same behavior, there is no real need to add VAS segments.
I will continue thinking about them and either find a different situation where the
currently available interface is not sufficient/too complicated or drop VAS segments
from future version of the patch set.

Till

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From - Thu Nov 08 21:39:45 2018
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Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
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To: Andy Lutomirski <luto@amacapital.net>
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On Wed, Mar 15, 2017 at 09:51:31AM -0700, Andy Lutomirski wrote:
> > VAS segments on the other side allow sharing of pure in memory data by
> > arbitrary related tasks without the need of a file. This becomes especially
> > interesting if one combines VAS segments with non-volatile memory since one can keep
> > data structures in the NVM and still be able to share them between multiple tasks.
> 
> What's wrong with regular mmap?

I think it's the usual misunderstandings about how to use mmap.
>From the paper:

   Memory-centric computing demands careful organization of the
   virtual address space, but interfaces such as mmap only give limited
   control. Some systems do not support creation of address regions at
   specific offsets. In Linux, for example, mmap does not safely abort if
   a request is made to open a region of memory over an existing region;
   it simply writes over it.

The correct answer of course, is "Don't specify MAP_FIXED".  Specify the
'hint' address, and if you don't get it, either fix up your data structure
pointers, or just abort and complain noisily.

______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/


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Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
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To: Andy Lutomirski <luto@amacapital.net>
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On Wed, 15 Mar 2017, Andy Lutomirski wrote:
> > One advantage of VAS segments is that they can be globally queried by user programs
> > which means that VAS segments can be shared by applications that not necessarily have
> > to be related. If I am not mistaken, MAP_SHARED of pure in memory data will only work
> > if the tasks that share the memory region are related (aka. have a common parent that
> > initialized the shared mapping). Otherwise, the shared mapping have to be backed by a
> > file.
> 
> What's wrong with memfd_create()?
> 
> > VAS segments on the other side allow sharing of pure in memory data by
> > arbitrary related tasks without the need of a file. This becomes especially
> > interesting if one combines VAS segments with non-volatile memory since one can keep
> > data structures in the NVM and still be able to share them between multiple tasks.
> 
> What's wrong with regular mmap?

I never wanted to say that there is something wrong with regular mmap. We just
figured that with VAS segments you could remove the need to mmap your shared data but
instead can keep everything purely in memory.

Unfortunately, I am not at full speed with memfds. Is my understanding correct that
if the last user of such a file descriptor closes it, the corresponding memory is
freed? Accordingly, memfd cannot be used to keep data in memory while no program is
currently using it, can it? To be able to do this you need again some representation
of the data in a file? Yes, you can use a tmpfs to keep the file content in memory as
well, or some DAX filesystem to keep the file content in NVM, but this always
requires that such filesystems are mounted in the system that the application is
currently running on. VAS segments on the other side would provide a functionality to
achieve the same without the need of any mounted filesystem. However, I agree, that
this is just a small advantage compared to what can already be achieved with the
existing functionality provided by the Linux kernel. I probably need to revisit the
whole idea of first class virtual address space segments before continuing with this
pacthset. Thank you very much for the great feedback.

> >> >> Ick.  Please don't do this.  Can we please keep an mm as just an mm
> >> >> and not make it look magically different depending on which process
> >> >> maps it?  If you need a trampoline (which you do, of course), just
> >> >> write a trampoline in regular user code and map it manually.
> >> >
> >> > Did I understand you correctly that you are proposing that the switching thread
> >> > should make sure by itself that its code, stack, … memory regions are properly setup
> >> > in the new AS before/after switching into it? I think, this would make using first
> >> > class virtual address spaces much more difficult for user applications to the extend
> >> > that I am not even sure if they can be used at all. At the moment, switching into a
> >> > VAS is a very simple operation for an application because the kernel will just simply
> >> > do the right thing.
> >>
> >> Yes.  I think that having the same mm_struct look different from
> >> different tasks is problematic.  Getting it right in the arch code is
> >> going to be nasty.  The heuristics of what to share are also tough --
> >> why would text + data + stack or whatever you're doing be adequate?
> >> What if you're in a thread?  What if two tasks have their stacks in
> >> the same place?
> >
> > The different ASes that a task now can have when it uses first class virtual address
> > spaces are not realized in the kernel by using only one mm_struct per task that just
> > looks differently but by using multiple mm_structs - one for each AS that the task
> > can execute in. When a task attaches a first class virtual address space to itself to
> > be able to use another AS, the kernel adds a temporary mm_struct to this task that
> > contains the mappings of the first class virtual address space and the one shared
> > with the task's original AS. If a thread now wants to switch into this attached first
> > class virtual address space the kernel only changes the 'mm' and 'active_mm' pointers
> > in the task_struct of the thread to the temporary mm_struct and performs the
> > corresponding mm_switch operation. The original mm_struct of the thread will not be
> > changed.
> >
> > Accordingly, I do not magically make mm_structs look differently depending on the
> > task that uses it, but create temporary mm_structs that only contain mappings to the
> > same memory regions.
> 
> This sounds complicated and fragile.  What happens if a heuristically
> shared region coincides with a region in the "first class address
> space" being selected?

If such a conflict happens, the task cannot use the first class address space and the
corresponding system call will return an error. However, with the current available
virtual address space size that programs can use, such conflicts are probably rare. I
could also image some additional functionality that allows a user to mark parts of
its AS to not to be shared/to be shared when switching into a VAS. With this
functionality in place, there would be no need for a heuristic in the kernel but the
user decides what to share. The kernel would by default only share code, data, and
stack and the application/libraries have to mark all the other memory regions as
shared if they need to be also available in the VAS.

> I think the right solution is "you're a user program playing virtual
> address games -- make sure you do it right".

Hm, in general I agree, that the easier and more robust solution from the kernel
perspective is to let the user do the AS setup and only provide the functionality to
create new empty ASes. Though, I think that such an interface would be much more
difficult to use than my current design. Letting the user program setup the AS has
also another implication that I currently don't have. Since I share the code and
stack regions between all ASes that are available to a process, I don't need to
save/restore stack pointers or instruction pointers when threads switch between ASes.
However, when the user will setup the AS, the kernel cannot be sure that the code and
stack will be mapped at the same virtual address and hence has to save and restore
these registers (and also potentially others since we can now basically jump between
different execution contexts).

When we first designed first class virtual address spaces, we had one special
use-case in mind, namely that one application wants to use different data sets that
it does not want/can keep in the same AS. Hence, sharing code and stack between the
different ASes that the application uses was a logic step for us because the code
memory region for example has to be available at all AS anyways since all of them
execute the same application. Sharing the stack memory region enabled the application
to keep volatile information that might be needed in the new AS on the stack which
allows easy information flow between the different ASes. 

For this patch, I extended the initial sharing of stack and code memory regions to
all memory regions that are available in the tasks original AS to also allow
dynamically linked applications and multi-threaded applications to flawlessly use
first class virtual address spaces.

To put it in a nutshell, we envisioned first class virtual address spaces to be
rather used as shareable/reusable data containers which made sharing various memory
regions that are crucial for the execution of the application a feasible
implementation decision.

Thank you all very much for the feedback. I really appreciate it.

Till

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Subject: [PATCH] parisc: Wire up statx system call
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 6b0741e..667c994 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -362,8 +362,9 @@
 #define __NR_copy_file_range	(__NR_Linux + 346)
 #define __NR_preadv2		(__NR_Linux + 347)
 #define __NR_pwritev2		(__NR_Linux + 348)
+#define __NR_statx		(__NR_Linux + 349)
 
-#define __NR_Linux_syscalls	(__NR_pwritev2 + 1)
+#define __NR_Linux_syscalls	(__NR_statx + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 3cfef1d..44aeaa9 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -444,6 +444,7 @@
 	ENTRY_SAME(copy_file_range)
 	ENTRY_COMP(preadv2)
 	ENTRY_COMP(pwritev2)
+	ENTRY_SAME(statx)
 
 
 .ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
--
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From - Thu Nov 08 21:39:45 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Avoid compiler warnings with access_ok()
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Commit 09b871ffd4d8 (parisc: Define access_ok() as macro) missed to mark uaddr
as used, which then gives compiler warnings about unused variables.

Fix it by comparing uaddr to uaddr which then gets optimized away by the
compiler.

Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: 09b871ffd4d8 ("parisc: Define access_ok() as macro")

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index fb4382c..edfbf9d 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -32,7 +32,8 @@
  * that put_user is the same as __put_user, etc.
  */
 
-#define access_ok(type, uaddr, size) (1)
+#define access_ok(type, uaddr, size)	\
+	( (uaddr) == (uaddr) )
 
 #define put_user __put_user
 #define get_user __get_user
--
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Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
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Cc: Andy Lutomirski <luto@amacapital.net>,
	Andy Lutomirski <luto@kernel.org>,
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On Wed, 15 Mar 2017, Rich Felker wrote:
> On Wed, Mar 15, 2017 at 12:44:47PM -0700, Till Smejkal wrote:
> > On Wed, 15 Mar 2017, Andy Lutomirski wrote:
> > > > One advantage of VAS segments is that they can be globally queried by user programs
> > > > which means that VAS segments can be shared by applications that not necessarily have
> > > > to be related. If I am not mistaken, MAP_SHARED of pure in memory data will only work
> > > > if the tasks that share the memory region are related (aka. have a common parent that
> > > > initialized the shared mapping). Otherwise, the shared mapping have to be backed by a
> > > > file.
> > > 
> > > What's wrong with memfd_create()?
> > > 
> > > > VAS segments on the other side allow sharing of pure in memory data by
> > > > arbitrary related tasks without the need of a file. This becomes especially
> > > > interesting if one combines VAS segments with non-volatile memory since one can keep
> > > > data structures in the NVM and still be able to share them between multiple tasks.
> > > 
> > > What's wrong with regular mmap?
> > 
> > I never wanted to say that there is something wrong with regular mmap. We just
> > figured that with VAS segments you could remove the need to mmap your shared data but
> > instead can keep everything purely in memory.
> > 
> > Unfortunately, I am not at full speed with memfds. Is my understanding correct that
> > if the last user of such a file descriptor closes it, the corresponding memory is
> > freed? Accordingly, memfd cannot be used to keep data in memory while no program is
> > currently using it, can it? To be able to do this you need again some representation
> 
> I have a name for application-allocated kernel resources that persist
> without a process holding a reference to them or a node in the
> filesystem: a bug. See: sysvipc.

VAS segments are first class citizens of the OS similar to processes. Accordingly, I
would not see this behavior as a bug. VAS segments are a kernel handle to
"persistent" memory (in the sense that they are independent of the lifetime of the
application that created them). That means the memory that is described by VAS
segments can be reused by other applications even if the VAS segment was not used by
any application in between. It is very much like a pure in-memory file. An
application creates a VAS segment, fills it with content and if it does not delete it
again, can reuse/open it again later. This also means, that if you know that you
never want to use this memory again you have to remove it explicitly, like you have
to remove a file, if you don't want to use it anymore.

I think it really might be better to implement VAS segments (if I should keep this
feature at all) with a special purpose filesystem. The way I've designed it seams to
be very misleading.

Till

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Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
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On Wed, 15 Mar 2017, Andy Lutomirski wrote:
> On Wed, Mar 15, 2017 at 12:44 PM, Till Smejkal
> <till.smejkal@googlemail.com> wrote:
> > On Wed, 15 Mar 2017, Andy Lutomirski wrote:
> >> > One advantage of VAS segments is that they can be globally queried by user programs
> >> > which means that VAS segments can be shared by applications that not necessarily have
> >> > to be related. If I am not mistaken, MAP_SHARED of pure in memory data will only work
> >> > if the tasks that share the memory region are related (aka. have a common parent that
> >> > initialized the shared mapping). Otherwise, the shared mapping have to be backed by a
> >> > file.
> >>
> >> What's wrong with memfd_create()?
> >>
> >> > VAS segments on the other side allow sharing of pure in memory data by
> >> > arbitrary related tasks without the need of a file. This becomes especially
> >> > interesting if one combines VAS segments with non-volatile memory since one can keep
> >> > data structures in the NVM and still be able to share them between multiple tasks.
> >>
> >> What's wrong with regular mmap?
> >
> > I never wanted to say that there is something wrong with regular mmap. We just
> > figured that with VAS segments you could remove the need to mmap your shared data but
> > instead can keep everything purely in memory.
> 
> memfd does that.

Yes, that's right. Thanks for giving me the pointer to this. I should have researched
more carefully before starting to work at VAS segments.

> > VAS segments on the other side would provide a functionality to
> > achieve the same without the need of any mounted filesystem. However, I agree, that
> > this is just a small advantage compared to what can already be achieved with the
> > existing functionality provided by the Linux kernel.
> 
> I see this "small advantage" as "resource leak and security problem".

I don't agree here. VAS segments are basically in-memory files that are handled by
the kernel directly without using a file system. Hence, if an application uses a VAS
segment to store data the same rules apply as if it uses a file. Everything that it
saves in the VAS segment might be accessible by other applications. An application
using VAS segments should be aware of this fact. In addition, the resources that are
represented by a VAS segment are not leaked. As I said, VAS segments are much like
files. Hence, if you don't want to use them any more, delete them. But as with files,
the kernel will not delete them for you (although something like this can be added).

> >> This sounds complicated and fragile.  What happens if a heuristically
> >> shared region coincides with a region in the "first class address
> >> space" being selected?
> >
> > If such a conflict happens, the task cannot use the first class address space and the
> > corresponding system call will return an error. However, with the current available
> > virtual address space size that programs can use, such conflicts are probably rare.
> 
> A bug that hits 1% of the time is often worse than one that hits 100%
> of the time because debugging it is miserable.

I don't agree that this is a bug at all. If there is a conflict in the memory layout
of the ASes the application simply cannot use this first class virtual address space.
Every application that wants to use first class virtual address spaces should check
for error return values and handle them.

This situation is similar to mapping a file at some special address in memory because
the file contains pointer based data structures and the application wants to use
them, but the kernel cannot map the file at this particular position in the
application's AS because there is already a different conflicting mapping. If an
application wants to do such things, it should also handle all the errors that can
occur.

Till

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From - Thu Nov 08 21:39:45 2018
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Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
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	Martin Schwidefsky <schwidefsky@de.ibm.com>,
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To: "Luck, Tony" <tony.luck@intel.com>
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On Wed, 15 Mar 2017, Luck, Tony wrote:
> On Wed, Mar 15, 2017 at 03:02:34PM -0700, Till Smejkal wrote:
> > I don't agree here. VAS segments are basically in-memory files that are handled by
> > the kernel directly without using a file system. Hence, if an application uses a VAS
> > segment to store data the same rules apply as if it uses a file. Everything that it
> > saves in the VAS segment might be accessible by other applications. An application
> > using VAS segments should be aware of this fact. In addition, the resources that are
> > represented by a VAS segment are not leaked. As I said, VAS segments are much like
> > files. Hence, if you don't want to use them any more, delete them. But as with files,
> > the kernel will not delete them for you (although something like this can be added).
> 
> So how do they differ from shmget(2), shmat(2), shmdt(2), shmctl(2)?
> 
> Apart from VAS having better names, instead of silly "key_t key" ones.

Unfortunately, I have to admit that the VAS segments don't differ from shm* a lot.
The implementation is differently, but the functionality that you can achieve with it
is very similar. I am sorry. We should have looked more closely at the whole
functionality that is provided by the shmem subsystem before working on VAS segments.

However, VAS segments are not the key part of this patch set. The more interesting
functionality in our opinion is the introduction of first class virtual address
spaces and what they can be used for. VAS segments were just another logical step for
us (from first class virtual address spaces to first class virtual address space
segments) but since their functionality can be achieved with various other already
existing features of the Linux kernel, I will probably drop them in future versions
of the patchset.

Thanks
Till

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Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
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To: Till Smejkal <till.smejkal@googlemail.com>
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On Wed, 15 Mar 2017, Till Smejkal wrote:
> On Wed, 15 Mar 2017, Andy Lutomirski wrote:

> > > VAS segments on the other side would provide a functionality to
> > > achieve the same without the need of any mounted filesystem. However,
> > > I agree, that this is just a small advantage compared to what can
> > > already be achieved with the existing functionality provided by the
> > > Linux kernel.
> > 
> > I see this "small advantage" as "resource leak and security problem".
> 
> I don't agree here. VAS segments are basically in-memory files that are
> handled by the kernel directly without using a file system. Hence, if an

Why do we need yet another mechanism to represent something which looks
like a file instead of simply using existing mechanisms and extend them?

Thanks,

	tglx

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	Richard Kuo <rkuo@codeaurora.org>, Tony Luck <tony.luck@intel.com>,
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	Michael Ellerman <mpe@ellerman.id.au>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de
To: Thomas Gleixner <tglx@linutronix.de>
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On Thu, 16 Mar 2017, Thomas Gleixner wrote:
> Why do we need yet another mechanism to represent something which looks
> like a file instead of simply using existing mechanisms and extend them?

You are right. I also recognized during the discussion with Andy, Chris, Matthew,
Luck, Rich and the others that there are already other techniques in the Linux kernel
that can achieve the same functionality when combined. As I said also to the others,
I will drop the VAS segments for future versions. The first class virtual address
space feature was the more interesting part of the patchset anyways.

Thanks
Till

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From - Thu Nov 08 21:39:45 2018
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Newsgroups: gmane.linux.kernel.mm,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.aio.general,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
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Cc: Andy Lutomirski <luto@amacapital.net>, Andy Lutomirski <luto@kernel.org>, 
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    Ivan Kokshaysky <ink@jurassic.park.msu.ru>, 
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To: Till Smejkal <till.smejkal@googlemail.com>
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On Thu, 16 Mar 2017, Till Smejkal wrote:
> On Thu, 16 Mar 2017, Thomas Gleixner wrote:
> > Why do we need yet another mechanism to represent something which looks
> > like a file instead of simply using existing mechanisms and extend them?
> 
> You are right. I also recognized during the discussion with Andy, Chris,
> Matthew, Luck, Rich and the others that there are already other
> techniques in the Linux kernel that can achieve the same functionality
> when combined. As I said also to the others, I will drop the VAS segments
> for future versions. The first class virtual address space feature was
> the more interesting part of the patchset anyways.

While you are at it, could you please drop this 'first class' marketing as
well? It has zero technical value, really.

Thanks,

	tglx

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From - Thu Nov 08 21:39:45 2018
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Newsgroups: gmane.linux.kernel.aio.general,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.video-input-infrastructure,gmane.linux.drivers.mtd,gmane.linux.usb.general,gmane.linux.file-systems,gmane.linux.kernel.mm,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.alsa.devel
Subject: Re: [RFC PATCH 00/13] Introduce first class virtual address spaces
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Cc: Till Smejkal <till.smejkal@googlemail.com>,
	Andy Lutomirski <luto@amacapital.net>,
	Andy Lutomirski <luto@kernel.org>,
	Richard Henderson <rth@twiddle.net>,
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	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
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On Thu, 16 Mar 2017, Thomas Gleixner wrote:
> On Thu, 16 Mar 2017, Till Smejkal wrote:
> > On Thu, 16 Mar 2017, Thomas Gleixner wrote:
> > > Why do we need yet another mechanism to represent something which looks
> > > like a file instead of simply using existing mechanisms and extend them?
> > 
> > You are right. I also recognized during the discussion with Andy, Chris,
> > Matthew, Luck, Rich and the others that there are already other
> > techniques in the Linux kernel that can achieve the same functionality
> > when combined. As I said also to the others, I will drop the VAS segments
> > for future versions. The first class virtual address space feature was
> > the more interesting part of the patchset anyways.
> 
> While you are at it, could you please drop this 'first class' marketing as
> well? It has zero technical value, really.

Yes of course. I am sorry for the trouble that I caused already.

Thanks
Till

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From - Thu Nov 08 21:39:46 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix system shutdown halting
Date: Sat, 18 Mar 2017 17:13:27 +0100
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On those parisc machines which don't provide a software power off
function, the system currently kills the init process at the end of a
shutdown and unexpectedly restarts insteads of halting.
Fix it by adding a loop which will not return.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.9+

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 06f7ca7..b76f503 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -142,6 +142,8 @@ void machine_power_off(void)
 
 	printk(KERN_EMERG "System shut down completed.\n"
 	       "Please power this system off now.");
+
+	for (;;);
 }
 
 void (*pm_power_off)(void) = machine_power_off;
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Subject: [GIT PULL] parisc architecture fixes for v4.11-rc3
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Hi Linus,

please pull a few fixes for the parisc architecture for kernel 4.11-rc3 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.11-2

Changes are:
- Mikulas Patocka added support for R_PARISC_SECREL32 relocations in modules
  with CONFIG_MODVERSIONS.
- Dave Anglin optimized the cache flushing for vmap ranges.
- Arvind Yadav provided a fix for a potential NULL pointer dereference in the
  parisc perf code (and some code cleanups).
- I wired up the new statx system call, fixed some compiler warnings with the
  access_ok() macro and fixed shutdown code to really halt a system at shutdown
  instead of crashing & rebooting.

Thanks,
Helge

----------------------------------------------------------------
Arvind Yadav (1):
      parisc: perf: Fix potential NULL pointer dereference

Helge Deller (3):
      parisc: Wire up statx system call
      parisc: Avoid compiler warnings with access_ok()
      parisc: Fix system shutdown halt

John David Anglin (1):
      parisc: Optimize flush_kernel_vmap_range and invalidate_kernel_vmap_range

Mikulas Patocka (1):
      parisc: support R_PARISC_SECREL32 relocation in modules

 arch/parisc/include/asm/cacheflush.h  | 23 +--------
 arch/parisc/include/asm/uaccess.h     |  3 +-
 arch/parisc/include/uapi/asm/unistd.h |  3 +-
 arch/parisc/kernel/cache.c            | 22 ++++++++
 arch/parisc/kernel/module.c           |  8 +++
 arch/parisc/kernel/perf.c             | 94 ++++++++++++++++++-----------------
 arch/parisc/kernel/process.c          |  2 +
 arch/parisc/kernel/syscall_table.S    |  1 +
 8 files changed, 88 insertions(+), 68 deletions(-)
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From - Thu Nov 08 21:39:46 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Clean up fixup routines for get_user()/put_user()
Date: Sat, 25 Mar 2017 11:59:15 +0100
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Cc: Al Viro <viro@ZenIV.linux.org.uk>
To: linux-parisc@vger.kernel.org,
        James Bottomley <James.Bottomley@HansenPartnership.com>,
        John David Anglin <dave.anglin@bell.net>
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Al Viro noticed that userspace accesses via get_user()/put_user() can be
simplified a lot with regard to usage of the exception handling.

This patch implements a fixup routine for get_user() and put_user() in such
that the exception handler will automatically load -EFAULT into the register
%r8 (the error value) in case on a fault on userspace.  Additionally the fixup
routine will zero the target register on fault in case of a get_user() call.
The target register is extracted out of the faulting assembly instruction.

This patch brings a few benefits over the old implementation:
1. Exception handling gets much cleaner, easier and smaller in size.
2. Helper functions like fixup_get_user_skip_1 (all of fixup.S) can be dropped.
3. No need to hardcode %r9 as target register for get_user() any longer. This
   helps the compiler register allocator and thus creates less assembler
   statements.
4. No dependency on the exception_data contents any longer.
5. Nested faults will be handled cleanly.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index edfbf9d..8442727 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -65,6 +65,15 @@ struct exception_table_entry {
 	".previous\n"
 
 /*
+ * ASM_EXCEPTIONTABLE_ENTRY_EFAULT() creates a special exception table entry
+ * (with lowest bit set) for which the fault handler in fixup_exception() will
+ * load -EFAULT into %r8 for a read or write fault, and zeroes the target
+ * register in case of a read fault in get_user().
+ */
+#define ASM_EXCEPTIONTABLE_ENTRY_EFAULT( fault_addr, except_addr )\
+	ASM_EXCEPTIONTABLE_ENTRY( fault_addr, except_addr + 1)
+
+/*
  * The page fault handler stores, in a per-cpu area, the following information
  * if a fixup routine is available.
  */
@@ -91,7 +100,7 @@ struct exception_data {
 #define __get_user(x, ptr)                               \
 ({                                                       \
 	register long __gu_err __asm__ ("r8") = 0;       \
-	register long __gu_val __asm__ ("r9") = 0;       \
+	register long __gu_val;				 \
 							 \
 	load_sr2();					 \
 	switch (sizeof(*(ptr))) {			 \
@@ -107,22 +116,23 @@ struct exception_data {
 })
 
 #define __get_user_asm(ldx, ptr)                        \
-	__asm__("\n1:\t" ldx "\t0(%%sr2,%2),%0\n\t"	\
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_1)\
+	__asm__("1: " ldx " 0(%%sr2,%2),%0\n"		\
+		"9:\n"					\
+		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 9b)	\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err)		\
-		: "r1");
+		: "r"(ptr), "1"(__gu_err));
 
 #if !defined(CONFIG_64BIT)
 
 #define __get_user_asm64(ptr) 				\
-	__asm__("\n1:\tldw 0(%%sr2,%2),%0"		\
-		"\n2:\tldw 4(%%sr2,%2),%R0\n\t"		\
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_2)\
-		ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_get_user_skip_1)\
+	__asm__("   copy %%r0,%R0\n"			\
+		"1: ldw 0(%%sr2,%2),%0\n"		\
+		"2: ldw 4(%%sr2,%2),%R0\n"		\
+		"9:\n"					\
+		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 9b)	\
+		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 9b)	\
 		: "=r"(__gu_val), "=r"(__gu_err)	\
-		: "r"(ptr), "1"(__gu_err)		\
-		: "r1");
+		: "r"(ptr), "1"(__gu_err));
 
 #endif /* !defined(CONFIG_64BIT) */
 
@@ -148,32 +158,31 @@ struct exception_data {
  * The "__put_user/kernel_asm()" macros tell gcc they read from memory
  * instead of writing. This is because they do not write to any memory
  * gcc knows about, so there are no aliasing issues. These macros must
- * also be aware that "fixup_put_user_skip_[12]" are executed in the
- * context of the fault, and any registers used there must be listed
- * as clobbers. In this case only "r1" is used by the current routines.
- * r8/r9 are already listed as err/val.
+ * also be aware that fixups are executed in the context of the fault,
+ * and any registers used there must be listed as clobbers.
+ * r8 is already listed as err.
  */
 
 #define __put_user_asm(stx, x, ptr)                         \
 	__asm__ __volatile__ (                              \
-		"\n1:\t" stx "\t%2,0(%%sr2,%1)\n\t"	    \
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_1)\
+		"1: " stx " %2,0(%%sr2,%1)\n"		    \
+		"9:\n"					    \
+		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 9b)	    \
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
-		: "r1")
+		: "r"(ptr), "r"(x), "0"(__pu_err))
 
 
 #if !defined(CONFIG_64BIT)
 
 #define __put_user_asm64(__val, ptr) do {	    	    \
 	__asm__ __volatile__ (				    \
-		"\n1:\tstw %2,0(%%sr2,%1)"		    \
-		"\n2:\tstw %R2,4(%%sr2,%1)\n\t"		    \
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_2)\
-		ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_put_user_skip_1)\
+		"1: stw %2,0(%%sr2,%1)\n"		    \
+		"2: stw %R2,4(%%sr2,%1)\n"		    \
+		"9:\n"					    \
+		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 9b)	    \
+		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 9b)	    \
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(__val), "0"(__pu_err) \
-		: "r1");				    \
+		: "r"(ptr), "r"(__val), "0"(__pu_err));	    \
 } while (0)
 
 #endif /* !defined(CONFIG_64BIT) */
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index 7484b3d..c6d6272 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -47,16 +47,6 @@ EXPORT_SYMBOL(__cmpxchg_u64);
 EXPORT_SYMBOL(lclear_user);
 EXPORT_SYMBOL(lstrnlen_user);
 
-/* Global fixups - defined as int to avoid creation of function pointers */
-extern int fixup_get_user_skip_1;
-extern int fixup_get_user_skip_2;
-extern int fixup_put_user_skip_1;
-extern int fixup_put_user_skip_2;
-EXPORT_SYMBOL(fixup_get_user_skip_1);
-EXPORT_SYMBOL(fixup_get_user_skip_2);
-EXPORT_SYMBOL(fixup_put_user_skip_1);
-EXPORT_SYMBOL(fixup_put_user_skip_2);
-
 #ifndef CONFIG_64BIT
 /* Needed so insmod can set dp value */
 extern int $global$;
diff --git a/arch/parisc/lib/Makefile b/arch/parisc/lib/Makefile
index 8fa92b8..f2dac4d 100644
--- a/arch/parisc/lib/Makefile
+++ b/arch/parisc/lib/Makefile
@@ -2,7 +2,7 @@
 # Makefile for parisc-specific library files
 #
 
-lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o \
+lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o memcpy.o \
 	   ucmpdi2.o delay.o
 
 obj-y	:= iomap.o
diff --git a/arch/parisc/lib/fixup.S b/arch/parisc/lib/fixup.S
deleted file mode 100644
index a5b72f2..0000000
--- a/arch/parisc/lib/fixup.S
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * Linux/PA-RISC Project (http://www.parisc-linux.org/)
- *
- *  Copyright (C) 2004  Randolph Chung <tausq@debian.org>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2, or (at your option)
- *    any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- * 
- * Fixup routines for kernel exception handling.
- */
-#include <asm/asm-offsets.h>
-#include <asm/assembly.h>
-#include <asm/errno.h>
-#include <linux/linkage.h>
-
-#ifdef CONFIG_SMP
-	.macro  get_fault_ip t1 t2
-	loadgp
-	addil LT%__per_cpu_offset,%r27
-	LDREG RT%__per_cpu_offset(%r1),\t1
-	/* t2 = smp_processor_id() */
-	mfctl 30,\t2
-	ldw TI_CPU(\t2),\t2
-#ifdef CONFIG_64BIT
-	extrd,u \t2,63,32,\t2
-#endif
-	/* t2 = &__per_cpu_offset[smp_processor_id()]; */
-	LDREGX \t2(\t1),\t2 
-	addil LT%exception_data,%r27
-	LDREG RT%exception_data(%r1),\t1
-	/* t1 = this_cpu_ptr(&exception_data) */
-	add,l \t1,\t2,\t1
-	/* %r27 = t1->fault_gp - restore gp */
-	LDREG EXCDATA_GP(\t1), %r27
-	/* t1 = t1->fault_ip */
-	LDREG EXCDATA_IP(\t1), \t1
-	.endm
-#else
-	.macro  get_fault_ip t1 t2
-	loadgp
-	/* t1 = this_cpu_ptr(&exception_data) */
-	addil LT%exception_data,%r27
-	LDREG RT%exception_data(%r1),\t2
-	/* %r27 = t2->fault_gp - restore gp */
-	LDREG EXCDATA_GP(\t2), %r27
-	/* t1 = t2->fault_ip */
-	LDREG EXCDATA_IP(\t2), \t1
-	.endm
-#endif
-
-	.level LEVEL
-
-	.text
-	.section .fixup, "ax"
-
-	/* get_user() fixups, store -EFAULT in r8, and 0 in r9 */
-ENTRY_CFI(fixup_get_user_skip_1)
-	get_fault_ip %r1,%r8
-	ldo 4(%r1), %r1
-	ldi -EFAULT, %r8
-	bv %r0(%r1)
-	copy %r0, %r9
-ENDPROC_CFI(fixup_get_user_skip_1)
-
-ENTRY_CFI(fixup_get_user_skip_2)
-	get_fault_ip %r1,%r8
-	ldo 8(%r1), %r1
-	ldi -EFAULT, %r8
-	bv %r0(%r1)
-	copy %r0, %r9
-ENDPROC_CFI(fixup_get_user_skip_2)
-
-	/* put_user() fixups, store -EFAULT in r8 */
-ENTRY_CFI(fixup_put_user_skip_1)
-	get_fault_ip %r1,%r8
-	ldo 4(%r1), %r1
-	bv %r0(%r1)
-	ldi -EFAULT, %r8
-ENDPROC_CFI(fixup_put_user_skip_1)
-
-ENTRY_CFI(fixup_put_user_skip_2)
-	get_fault_ip %r1,%r8
-	ldo 8(%r1), %r1
-	bv %r0(%r1)
-	ldi -EFAULT, %r8
-ENDPROC_CFI(fixup_put_user_skip_2)
-
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index deab89a..a1c07aa 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -150,6 +150,22 @@ int fixup_exception(struct pt_regs *regs)
 		d->fault_space = regs->isr;
 		d->fault_addr = regs->ior;
 
+		/*
+		 * Fix up get_user() and put_user().
+		 * ASM_EXCEPTIONTABLE_ENTRY_EFAULT() sets bit 1 to indicate
+		 * that %r8 should be loaded with -EFAULT to report a
+		 * userspace access error.
+		 */
+		if (fix->fixup & 1) {
+			regs->gr[8] = -EFAULT;
+
+			/* zero target register for get_user() */
+			if (parisc_acctyp(0, regs->iir) == VM_READ) {
+				int treg = regs->iir & 0x1f;
+				regs->gr[treg] = 0;
+			}
+		}
+
 		regs->iaoq[0] = (unsigned long)&fix->fixup + fix->fixup;
 		regs->iaoq[0] &= ~3;
 		/*
--
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Subject: Re: [PATCH] parisc: Clean up fixup routines for get_user()/put_user()
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On 2017-03-25, at 6:59 AM, Helge Deller wrote:

> +		/*
> +		 * Fix up get_user() and put_user().
> +		 * ASM_EXCEPTIONTABLE_ENTRY_EFAULT() sets bit 1 to indicate

Small nit - the bit set is bit 31 in .word.  Maybe "sets the least-significant bit in the relative address
of the fixup routine".

Excellent simplification.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix access fault handling in pa_memcpy()
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pa_memcpy() is the major memcpy implementation in the parisc kernel which is
used to do any kind of userspace/kernel memory copies.

Al Viro noticed various bugs in the implementation of pa_mempcy(), most notably
that in case of faults it may report back to have copied more bytes than it
actually did.

Fixing those bugs is quite hard in the C-implementation, because the compiler
is messing around with the registers and we are not guaranteed that specific
variables are always in the same processor registers. This makes proper fault
handling complicated.

This patch implements pa_memcpy() in assembler. That way we have correct fault
handling and adding a 64-bit copy routine was quite easy.

Runtime tested with 32- and 64bit kernels.

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: John David Anglin <dave.anglin@bell.net>


diff --git a/arch/parisc/lib/lusercopy.S b/arch/parisc/lib/lusercopy.S
index 56845de..8bcff05 100644
--- a/arch/parisc/lib/lusercopy.S
+++ b/arch/parisc/lib/lusercopy.S
@@ -5,6 +5,7 @@
  *    Copyright (C) 2000 Richard Hirst <rhirst with parisc-linux.org>
  *    Copyright (C) 2001 Matthieu Delahaye <delahaym at esiee.fr>
  *    Copyright (C) 2003 Randolph Chung <tausq with parisc-linux.org>
+ *    Copyright (C) 2017 Helge Deller <deller@gmx.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -132,4 +133,284 @@ ENDPROC_CFI(lstrnlen_user)
 
 	.procend
 
+
+
+	/*
+	 * unsigned long pa_memcpy(void *dstp, const void *srcp,
+	 *				unsigned long len)
+	 *
+	 * Inputs:
+	 * - sr1 contains space of source region
+	 * - sr2 contains space of destination region
+	 *
+	 * Returns number of bytes not transferred.
+	 * If bytes were not copied, this means either a read- or write fault
+	 * happened.
+	 */
+
+	dst = arg0
+	src = arg1
+	len = arg2
+	t1  = r19
+	t2  = r20
+	t3  = r21
+	t4  = r22
+	srcspc = sr1
+	dstspc = sr2
+
+	t0 = r1
+	a1 = t1
+	a2 = t2
+	a3 = t3
+	a0 = t4
+
+	save_src = ret0
+	save_dst = ret1
+	save_len = arg3
+
+ENTRY_CFI(pa_memcpy)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+	/* short copy with less than 16bytes? */
+	cmpib,>>=,n 15,len,byte_loop
+
+	/* same alignment? */
+	xor	src,dst,t0
+	extru	t0,31,2,t1
+	cmpib,<>,n  0,t1,unaligned_copy
+
+#ifdef CONFIG_64BIT
+	/* only do 64bit copies if we can get aligned. */
+	extru	t0,31,3,t1
+	cmpib,<>,n  0,t1,align_loop32
+
+	/* align until we are 64bit-word-aligned */
+align_loop64:
+	extru	dst,31,3,t1
+	cmpib,=,n	0,t1,copy_loop_16
+20:	ldb,ma	1(srcspc,src),t1
+21:	stb,ma	t1,1(dstspc,dst)
+	b	align_loop64
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,copy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,copy_done)
+
+	ldi	31,t0
+copy_loop_16:
+	cmpb,COND(>>=),n t0,len,word_loop
+
+10:	ldd	0(srcspc,src),t1
+11:	ldd	8(srcspc,src),t2
+12:	std	t1,0(dstspc,dst)
+13:	std	t2,8(dstspc,dst)
+	ldo	16(src),src
+	ldo	16(dst),dst
+	ldo	-16(len),len
+14:	ldd	0(srcspc,src),t3
+15:	ldd	8(srcspc,src),t4
+16:	std	t3,0(dstspc,dst)
+17:	std	t4,8(dstspc,dst)
+
+	ASM_EXCEPTIONTABLE_ENTRY(10b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(11b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(12b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(13b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(14b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(15b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(16b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(17b,byte_loop_run)
+
+	ldo	16(src),src
+	ldo	16(dst),dst
+	b	copy_loop_16
+	ldo	-16(len),len
+
+word_loop:
+	cmpib,COND(>>=),n 3,len,byte_loop
+20:	ldw,ma	4(srcspc,src),t1
+21:	stw,ma	t1,4(dstspc,dst)
+	b	word_loop
+	ldo	-4(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,byte_loop_run)
+
+#endif /* CONFIG_64BIT */
+
+	/* align until we are 32bit-word-aligned */
+align_loop32:
+	extru	dst,31,2,t1
+	cmpib,=,n	0,t1,copy_loop_4
+20:	ldb,ma	1(srcspc,src),t1
+21:	stb,ma	t1,1(dstspc,dst)
+	b	align_loop32
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,copy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,copy_done)
+
+
+copy_loop_4:
+	cmpib,COND(>>=),n 15,len,byte_loop
+
+10:	ldw	0(srcspc,src),t1
+11:	ldw	4(srcspc,src),t2
+12:	ldw	8(srcspc,src),t3
+13:	ldw	12(srcspc,src),t4
+14:	stw	t1,0(dstspc,dst)
+15:	stw	t2,4(dstspc,dst)
+16:	stw	t3,8(dstspc,dst)
+17:	stw	t4,12(dstspc,dst)
+
+	ASM_EXCEPTIONTABLE_ENTRY(10b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(11b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(12b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(13b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(14b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(15b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(16b,byte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(17b,byte_loop_run)
+
+	ldo	16(src),src
+	ldo	16(dst),dst
+	b	copy_loop_4
+	ldo	-16(len),len
+	
+byte_loop:
+	cmpclr,COND(<>) len,%r0,%r0
+	b,n	copy_done
+byte_loop_run:
+20:	ldb,ma	1(srcspc,src),t1
+21:	stb,ma	t1,1(dstspc,dst)
+	b	byte_loop
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,copy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,copy_done)
+
+copy_done:
+	bv	%r0(%r2)
+	copy	len,ret0
+
+
+	/* src and dst are not aligned the same way. */
+	/* need to go the hard way */
+unaligned_copy:
+	/* align until dst is 32bit-word-aligned */
+	extru	dst,31,2,t1
+	cmpib,COND(=),n	0,t1,copy_dstaligned
+20:	ldb,ma	1(srcspc,src),t1
+21:	stb,ma	t1,1(dstspc,dst)
+	b	unaligned_copy
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,copy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,copy_done)
+
+copy_dstaligned:
+
+	/* store src, dst and len in safe place */
+	copy	src,save_src
+        copy	dst,save_dst
+	copy	len,save_len
+
+	/* len now needs give number of words to copy */
+	SHRREG	len,2,len
+
+	/*
+	 * Copy from a not-aligned src to an aligned dst using shifts.
+	 * Handles 4 words per loop.
+	 * This code is derived from glibc.
+	 */
+
+	depw,z src,28,2,t0
+	subi 32,t0,t0
+	mtsar t0
+	extru len,31,2,t0
+	cmpib,= 2,t0,.Lcase2
+	/* Make src aligned by rounding it down.  */
+	depi 0,31,2,src
+
+	cmpiclr,<> 3,t0,%r0
+	b,n .Lcase3
+	cmpiclr,<> 1,t0,%r0
+	b,n .Lcase1
+.Lcase0:
+	cmpb,= %r0,len,Lcda_finish
+	nop
+
+1:	ldw,ma 4(srcspc,src), a3
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+1:	ldw,ma 4(srcspc,src), a0
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+	b,n .Ldo3
+.Lcase1:
+1:	ldw,ma 4(srcspc,src), a2
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+1:	ldw,ma 4(srcspc,src), a3
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+	ldo -1(len),len
+	cmpb,=,n %r0,len,.Ldo0
+.Ldo4:
+1:	ldw,ma 4(srcspc,src), a0
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+	shrpw a2, a3, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+.Ldo3:
+1:	ldw,ma 4(srcspc,src), a1
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+	shrpw a3, a0, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+.Ldo2:
+1:	ldw,ma 4(srcspc,src), a2
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+	shrpw a0, a1, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+.Ldo1:
+1:	ldw,ma 4(srcspc,src), a3
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+	shrpw a1, a2, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+	ldo -4(len),len
+	cmpb,<> %r0,len,.Ldo4
+	nop
+.Ldo0:
+	shrpw a2, a3, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+
+Lcda_finish:
+
+	/* calculate new src, dst and len and jump to byte-copy */
+	sub	dst,save_dst,t0
+	add	save_src,t0,src
+	b	byte_loop
+	sub	save_len,t0,len
+
+.Lcase3:
+1:	ldw,ma 4(srcspc,src), a0
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+1:	ldw,ma 4(srcspc,src), a1
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+	b .Ldo2
+	ldo 1(len),len
+.Lcase2:
+1:	ldw,ma 4(srcspc,src), a1
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+1:	ldw,ma 4(srcspc,src), a2
+	ASM_EXCEPTIONTABLE_ENTRY(1b,Lcda_finish)
+	b .Ldo1
+	ldo 2(len),len
+
+	.exit
+ENDPROC_CFI(pa_memcpy)
+	.procend
+
 	.end
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index f82ff10..de996e5 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -2,7 +2,7 @@
  *    Optimized memory copy routines.
  *
  *    Copyright (C) 2004 Randolph Chung <tausq@debian.org>
- *    Copyright (C) 2013 Helge Deller <deller@gmx.de>
+ *    Copyright (C) 2013-2017 Helge Deller <deller@gmx.de>
  *
  *    This program is free software; you can redistribute it and/or modify
  *    it under the terms of the GNU General Public License as published by
@@ -21,474 +21,21 @@
  *    Portions derived from the GNU C Library
  *    Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc.
  *
- * Several strategies are tried to try to get the best performance for various
- * conditions. In the optimal case, we copy 64-bytes in an unrolled loop using 
- * fp regs. This is followed by loops that copy 32- or 16-bytes at a time using
- * general registers.  Unaligned copies are handled either by aligning the 
- * destination and then using shift-and-write method, or in a few cases by 
- * falling back to a byte-at-a-time copy.
- *
- * I chose to implement this in C because it is easier to maintain and debug,
- * and in my experiments it appears that the C code generated by gcc (3.3/3.4
- * at the time of writing) is fairly optimal. Unfortunately some of the 
- * semantics of the copy routine (exception handling) is difficult to express
- * in C, so we have to play some tricks to get it to work.
- *
- * All the loads and stores are done via explicit asm() code in order to use
- * the right space registers. 
- * 
- * Testing with various alignments and buffer sizes shows that this code is 
- * often >10x faster than a simple byte-at-a-time copy, even for strangely
- * aligned operands. It is interesting to note that the glibc version
- * of memcpy (written in C) is actually quite fast already. This routine is 
- * able to beat it by 30-40% for aligned copies because of the loop unrolling, 
- * but in some cases the glibc version is still slightly faster. This lends 
- * more credibility that gcc can generate very good code as long as we are 
- * careful.
- *
- * TODO:
- * - cache prefetching needs more experimentation to get optimal settings
- * - try not to use the post-increment address modifiers; they create additional
- *   interlocks
- * - replace byte-copy loops with stybs sequences
  */
 
-#ifdef __KERNEL__
 #include <linux/module.h>
 #include <linux/compiler.h>
 #include <linux/uaccess.h>
-#define s_space "%%sr1"
-#define d_space "%%sr2"
-#else
-#include "memcpy.h"
-#define s_space "%%sr0"
-#define d_space "%%sr0"
-#define pa_memcpy new2_copy
-#endif
 
 DECLARE_PER_CPU(struct exception_data, exception_data);
 
-#define preserve_branch(label)	do {					\
-	volatile int dummy = 0;						\
-	/* The following branch is never taken, it's just here to  */	\
-	/* prevent gcc from optimizing away our exception code. */ 	\
-	if (unlikely(dummy != dummy))					\
-		goto label;						\
-} while (0)
-
 #define get_user_space() (segment_eq(get_fs(), KERNEL_DS) ? 0 : mfsp(3))
 #define get_kernel_space() (0)
 
-#define MERGE(w0, sh_1, w1, sh_2)  ({					\
-	unsigned int _r;						\
-	asm volatile (							\
-	"mtsar %3\n"							\
-	"shrpw %1, %2, %%sar, %0\n"					\
-	: "=r"(_r)							\
-	: "r"(w0), "r"(w1), "r"(sh_2)					\
-	);								\
-	_r;								\
-})
-#define THRESHOLD	16
-
-#ifdef DEBUG_MEMCPY
-#define DPRINTF(fmt, args...) do { printk(KERN_DEBUG "%s:%d:%s ", __FILE__, __LINE__, __func__ ); printk(KERN_DEBUG fmt, ##args ); } while (0)
-#else
-#define DPRINTF(fmt, args...)
-#endif
-
-#define def_load_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e)	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn ",ma " #_sz "(" _s ",%1), %0\n\t"	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: _tt(_t), "+r"(_a)				\
-	: 						\
-	: "r8")
-
-#define def_store_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn ",ma %1, " #_sz "(" _s ",%0)\n\t"	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: "+r"(_a) 					\
-	: _tt(_t)					\
-	: "r8")
-
-#define ldbma(_s, _a, _t, _e) def_load_ai_insn(ldbs,1,"=r",_s,_a,_t,_e)
-#define stbma(_s, _t, _a, _e) def_store_ai_insn(stbs,1,"r",_s,_a,_t,_e)
-#define ldwma(_s, _a, _t, _e) def_load_ai_insn(ldw,4,"=r",_s,_a,_t,_e)
-#define stwma(_s, _t, _a, _e) def_store_ai_insn(stw,4,"r",_s,_a,_t,_e)
-#define flddma(_s, _a, _t, _e) def_load_ai_insn(fldd,8,"=f",_s,_a,_t,_e)
-#define fstdma(_s, _t, _a, _e) def_store_ai_insn(fstd,8,"f",_s,_a,_t,_e)
-
-#define def_load_insn(_insn,_tt,_s,_o,_a,_t,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn " " #_o "(" _s ",%1), %0\n\t"	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: _tt(_t) 					\
-	: "r"(_a)					\
-	: "r8")
-
-#define def_store_insn(_insn,_tt,_s,_t,_o,_a,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn " %0, " #_o "(" _s ",%1)\n\t" 	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: 						\
-	: _tt(_t), "r"(_a)				\
-	: "r8")
-
-#define ldw(_s,_o,_a,_t,_e)	def_load_insn(ldw,"=r",_s,_o,_a,_t,_e)
-#define stw(_s,_t,_o,_a,_e) 	def_store_insn(stw,"r",_s,_t,_o,_a,_e)
-
-#ifdef  CONFIG_PREFETCH
-static inline void prefetch_src(const void *addr)
-{
-	__asm__("ldw 0(" s_space ",%0), %%r0" : : "r" (addr));
-}
-
-static inline void prefetch_dst(const void *addr)
-{
-	__asm__("ldd 0(" d_space ",%0), %%r0" : : "r" (addr));
-}
-#else
-#define prefetch_src(addr) do { } while(0)
-#define prefetch_dst(addr) do { } while(0)
-#endif
-
-#define PA_MEMCPY_OK		0
-#define PA_MEMCPY_LOAD_ERROR	1
-#define PA_MEMCPY_STORE_ERROR	2
-
-/* Copy from a not-aligned src to an aligned dst, using shifts. Handles 4 words
- * per loop.  This code is derived from glibc. 
- */
-static noinline unsigned long copy_dstaligned(unsigned long dst,
-					unsigned long src, unsigned long len)
-{
-	/* gcc complains that a2 and a3 may be uninitialized, but actually
-	 * they cannot be.  Initialize a2/a3 to shut gcc up.
-	 */
-	register unsigned int a0, a1, a2 = 0, a3 = 0;
-	int sh_1, sh_2;
-
-	/* prefetch_src((const void *)src); */
-
-	/* Calculate how to shift a word read at the memory operation
-	   aligned srcp to make it aligned for copy.  */
-	sh_1 = 8 * (src % sizeof(unsigned int));
-	sh_2 = 8 * sizeof(unsigned int) - sh_1;
-
-	/* Make src aligned by rounding it down.  */
-	src &= -sizeof(unsigned int);
-
-	switch (len % 4)
-	{
-		case 2:
-			/* a1 = ((unsigned int *) src)[0];
-			   a2 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a1, cda_ldw_exc);
-			ldw(s_space, 4, src, a2, cda_ldw_exc);
-			src -= 1 * sizeof(unsigned int);
-			dst -= 3 * sizeof(unsigned int);
-			len += 2;
-			goto do1;
-		case 3:
-			/* a0 = ((unsigned int *) src)[0];
-			   a1 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a0, cda_ldw_exc);
-			ldw(s_space, 4, src, a1, cda_ldw_exc);
-			src -= 0 * sizeof(unsigned int);
-			dst -= 2 * sizeof(unsigned int);
-			len += 1;
-			goto do2;
-		case 0:
-			if (len == 0)
-				return PA_MEMCPY_OK;
-			/* a3 = ((unsigned int *) src)[0];
-			   a0 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a3, cda_ldw_exc);
-			ldw(s_space, 4, src, a0, cda_ldw_exc);
-			src -=-1 * sizeof(unsigned int);
-			dst -= 1 * sizeof(unsigned int);
-			len += 0;
-			goto do3;
-		case 1:
-			/* a2 = ((unsigned int *) src)[0];
-			   a3 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a2, cda_ldw_exc);
-			ldw(s_space, 4, src, a3, cda_ldw_exc);
-			src -=-2 * sizeof(unsigned int);
-			dst -= 0 * sizeof(unsigned int);
-			len -= 1;
-			if (len == 0)
-				goto do0;
-			goto do4;			/* No-op.  */
-	}
-
-	do
-	{
-		/* prefetch_src((const void *)(src + 4 * sizeof(unsigned int))); */
-do4:
-		/* a0 = ((unsigned int *) src)[0]; */
-		ldw(s_space, 0, src, a0, cda_ldw_exc);
-		/* ((unsigned int *) dst)[0] = MERGE (a2, sh_1, a3, sh_2); */
-		stw(d_space, MERGE (a2, sh_1, a3, sh_2), 0, dst, cda_stw_exc);
-do3:
-		/* a1 = ((unsigned int *) src)[1]; */
-		ldw(s_space, 4, src, a1, cda_ldw_exc);
-		/* ((unsigned int *) dst)[1] = MERGE (a3, sh_1, a0, sh_2); */
-		stw(d_space, MERGE (a3, sh_1, a0, sh_2), 4, dst, cda_stw_exc);
-do2:
-		/* a2 = ((unsigned int *) src)[2]; */
-		ldw(s_space, 8, src, a2, cda_ldw_exc);
-		/* ((unsigned int *) dst)[2] = MERGE (a0, sh_1, a1, sh_2); */
-		stw(d_space, MERGE (a0, sh_1, a1, sh_2), 8, dst, cda_stw_exc);
-do1:
-		/* a3 = ((unsigned int *) src)[3]; */
-		ldw(s_space, 12, src, a3, cda_ldw_exc);
-		/* ((unsigned int *) dst)[3] = MERGE (a1, sh_1, a2, sh_2); */
-		stw(d_space, MERGE (a1, sh_1, a2, sh_2), 12, dst, cda_stw_exc);
-
-		src += 4 * sizeof(unsigned int);
-		dst += 4 * sizeof(unsigned int);
-		len -= 4;
-	}
-	while (len != 0);
-
-do0:
-	/* ((unsigned int *) dst)[0] = MERGE (a2, sh_1, a3, sh_2); */
-	stw(d_space, MERGE (a2, sh_1, a3, sh_2), 0, dst, cda_stw_exc);
-
-	preserve_branch(handle_load_error);
-	preserve_branch(handle_store_error);
-
-	return PA_MEMCPY_OK;
-
-handle_load_error:
-	__asm__ __volatile__ ("cda_ldw_exc:\n");
-	return PA_MEMCPY_LOAD_ERROR;
-
-handle_store_error:
-	__asm__ __volatile__ ("cda_stw_exc:\n");
-	return PA_MEMCPY_STORE_ERROR;
-}
-
-
-/* Returns PA_MEMCPY_OK, PA_MEMCPY_LOAD_ERROR or PA_MEMCPY_STORE_ERROR.
- * In case of an access fault the faulty address can be read from the per_cpu
- * exception data struct. */
-static noinline unsigned long pa_memcpy_internal(void *dstp, const void *srcp,
-					unsigned long len)
-{
-	register unsigned long src, dst, t1, t2, t3;
-	register unsigned char *pcs, *pcd;
-	register unsigned int *pws, *pwd;
-	register double *pds, *pdd;
-	unsigned long ret;
-
-	src = (unsigned long)srcp;
-	dst = (unsigned long)dstp;
-	pcs = (unsigned char *)srcp;
-	pcd = (unsigned char *)dstp;
-
-	/* prefetch_src((const void *)srcp); */
-
-	if (len < THRESHOLD)
-		goto byte_copy;
-
-	/* Check alignment */
-	t1 = (src ^ dst);
-	if (unlikely(t1 & (sizeof(double)-1)))
-		goto unaligned_copy;
-
-	/* src and dst have same alignment. */
-
-	/* Copy bytes till we are double-aligned. */
-	t2 = src & (sizeof(double) - 1);
-	if (unlikely(t2 != 0)) {
-		t2 = sizeof(double) - t2;
-		while (t2 && len) {
-			/* *pcd++ = *pcs++; */
-			ldbma(s_space, pcs, t3, pmc_load_exc);
-			len--;
-			stbma(d_space, t3, pcd, pmc_store_exc);
-			t2--;
-		}
-	}
-
-	pds = (double *)pcs;
-	pdd = (double *)pcd;
-
-#if 0
-	/* Copy 8 doubles at a time */
-	while (len >= 8*sizeof(double)) {
-		register double r1, r2, r3, r4, r5, r6, r7, r8;
-		/* prefetch_src((char *)pds + L1_CACHE_BYTES); */
-		flddma(s_space, pds, r1, pmc_load_exc);
-		flddma(s_space, pds, r2, pmc_load_exc);
-		flddma(s_space, pds, r3, pmc_load_exc);
-		flddma(s_space, pds, r4, pmc_load_exc);
-		fstdma(d_space, r1, pdd, pmc_store_exc);
-		fstdma(d_space, r2, pdd, pmc_store_exc);
-		fstdma(d_space, r3, pdd, pmc_store_exc);
-		fstdma(d_space, r4, pdd, pmc_store_exc);
-
-#if 0
-		if (L1_CACHE_BYTES <= 32)
-			prefetch_src((char *)pds + L1_CACHE_BYTES);
-#endif
-		flddma(s_space, pds, r5, pmc_load_exc);
-		flddma(s_space, pds, r6, pmc_load_exc);
-		flddma(s_space, pds, r7, pmc_load_exc);
-		flddma(s_space, pds, r8, pmc_load_exc);
-		fstdma(d_space, r5, pdd, pmc_store_exc);
-		fstdma(d_space, r6, pdd, pmc_store_exc);
-		fstdma(d_space, r7, pdd, pmc_store_exc);
-		fstdma(d_space, r8, pdd, pmc_store_exc);
-		len -= 8*sizeof(double);
-	}
-#endif
-
-	pws = (unsigned int *)pds;
-	pwd = (unsigned int *)pdd;
-
-word_copy:
-	while (len >= 8*sizeof(unsigned int)) {
-		register unsigned int r1,r2,r3,r4,r5,r6,r7,r8;
-		/* prefetch_src((char *)pws + L1_CACHE_BYTES); */
-		ldwma(s_space, pws, r1, pmc_load_exc);
-		ldwma(s_space, pws, r2, pmc_load_exc);
-		ldwma(s_space, pws, r3, pmc_load_exc);
-		ldwma(s_space, pws, r4, pmc_load_exc);
-		stwma(d_space, r1, pwd, pmc_store_exc);
-		stwma(d_space, r2, pwd, pmc_store_exc);
-		stwma(d_space, r3, pwd, pmc_store_exc);
-		stwma(d_space, r4, pwd, pmc_store_exc);
-
-		ldwma(s_space, pws, r5, pmc_load_exc);
-		ldwma(s_space, pws, r6, pmc_load_exc);
-		ldwma(s_space, pws, r7, pmc_load_exc);
-		ldwma(s_space, pws, r8, pmc_load_exc);
-		stwma(d_space, r5, pwd, pmc_store_exc);
-		stwma(d_space, r6, pwd, pmc_store_exc);
-		stwma(d_space, r7, pwd, pmc_store_exc);
-		stwma(d_space, r8, pwd, pmc_store_exc);
-		len -= 8*sizeof(unsigned int);
-	}
-
-	while (len >= 4*sizeof(unsigned int)) {
-		register unsigned int r1,r2,r3,r4;
-		ldwma(s_space, pws, r1, pmc_load_exc);
-		ldwma(s_space, pws, r2, pmc_load_exc);
-		ldwma(s_space, pws, r3, pmc_load_exc);
-		ldwma(s_space, pws, r4, pmc_load_exc);
-		stwma(d_space, r1, pwd, pmc_store_exc);
-		stwma(d_space, r2, pwd, pmc_store_exc);
-		stwma(d_space, r3, pwd, pmc_store_exc);
-		stwma(d_space, r4, pwd, pmc_store_exc);
-		len -= 4*sizeof(unsigned int);
-	}
-
-	pcs = (unsigned char *)pws;
-	pcd = (unsigned char *)pwd;
-
-byte_copy:
-	while (len) {
-		/* *pcd++ = *pcs++; */
-		ldbma(s_space, pcs, t3, pmc_load_exc);
-		stbma(d_space, t3, pcd, pmc_store_exc);
-		len--;
-	}
-
-	return PA_MEMCPY_OK;
-
-unaligned_copy:
-	/* possibly we are aligned on a word, but not on a double... */
-	if (likely((t1 & (sizeof(unsigned int)-1)) == 0)) {
-		t2 = src & (sizeof(unsigned int) - 1);
-
-		if (unlikely(t2 != 0)) {
-			t2 = sizeof(unsigned int) - t2;
-			while (t2) {
-				/* *pcd++ = *pcs++; */
-				ldbma(s_space, pcs, t3, pmc_load_exc);
-				stbma(d_space, t3, pcd, pmc_store_exc);
-				len--;
-				t2--;
-			}
-		}
-
-		pws = (unsigned int *)pcs;
-		pwd = (unsigned int *)pcd;
-		goto word_copy;
-	}
-
-	/* Align the destination.  */
-	if (unlikely((dst & (sizeof(unsigned int) - 1)) != 0)) {
-		t2 = sizeof(unsigned int) - (dst & (sizeof(unsigned int) - 1));
-		while (t2) {
-			/* *pcd++ = *pcs++; */
-			ldbma(s_space, pcs, t3, pmc_load_exc);
-			stbma(d_space, t3, pcd, pmc_store_exc);
-			len--;
-			t2--;
-		}
-		dst = (unsigned long)pcd;
-		src = (unsigned long)pcs;
-	}
-
-	ret = copy_dstaligned(dst, src, len / sizeof(unsigned int));
-	if (ret)
-		return ret;
-
-	pcs += (len & -sizeof(unsigned int));
-	pcd += (len & -sizeof(unsigned int));
-	len %= sizeof(unsigned int);
-
-	preserve_branch(handle_load_error);
-	preserve_branch(handle_store_error);
-
-	goto byte_copy;
-
-handle_load_error:
-	__asm__ __volatile__ ("pmc_load_exc:\n");
-	return PA_MEMCPY_LOAD_ERROR;
-
-handle_store_error:
-	__asm__ __volatile__ ("pmc_store_exc:\n");
-	return PA_MEMCPY_STORE_ERROR;
-}
-
-
 /* Returns 0 for success, otherwise, returns number of bytes not transferred. */
-static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
-{
-	unsigned long ret, fault_addr, reference;
-	struct exception_data *d;
-
-	ret = pa_memcpy_internal(dstp, srcp, len);
-	if (likely(ret == PA_MEMCPY_OK))
-		return 0;
-
-	/* if a load or store fault occured we can get the faulty addr */
-	d = this_cpu_ptr(&exception_data);
-	fault_addr = d->fault_addr;
-
-	/* error in load or store? */
-	if (ret == PA_MEMCPY_LOAD_ERROR)
-		reference = (unsigned long) srcp;
-	else
-		reference = (unsigned long) dstp;
-
-	DPRINTF("pa_memcpy: fault type = %lu, len=%lu fault_addr=%lu ref=%lu\n",
-		ret, len, fault_addr, reference);

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Fold trivial exception handling for lclear_user() and lstrnlen_user()
into the main functions.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/lib/lusercopy.S b/arch/parisc/lib/lusercopy.S
index 8bcff05..4718eca 100644
--- a/arch/parisc/lib/lusercopy.S
+++ b/arch/parisc/lib/lusercopy.S
@@ -55,12 +55,6 @@
 	mtsp        %r1,%sr1
 	.endm
 
-	.macro fixup_branch lbl
-	ldil	    L%\lbl, %r1
-	ldo	    R%\lbl(%r1), %r1
-	bv          %r0(%r1)
-	.endm
-
 	/*
 	 * unsigned long lclear_user(void *to, unsigned long n)
 	 *
@@ -81,16 +75,16 @@ $lclu_loop:
 $lclu_done:
 	bv          %r0(%r2)
 	copy        %r25,%r28
-	.exit
-ENDPROC_CFI(lclear_user)
 
-	.section .fixup,"ax"
-2:      fixup_branch $lclu_done
-	ldo        1(%r25),%r25
-	.previous
+2:	b           $lclu_done
+	ldo         1(%r25),%r25
 
 	ASM_EXCEPTIONTABLE_ENTRY(1b,2b)
 
+	.exit
+ENDPROC_CFI(lclear_user)
+
+
 	.procend
 
 	/*
@@ -121,16 +115,15 @@ $lslen_done:
 $lslen_nzero:
 	b           $lslen_done
 	ldo         1(%r26),%r26 /* special case for N == 0 */
-ENDPROC_CFI(lstrnlen_user)
 
-	.section .fixup,"ax"
-3:      fixup_branch $lslen_done
+3:      b	    $lslen_done
 	copy        %r24,%r26    /* reset r26 so 0 is returned on fault */
-	.previous
 
 	ASM_EXCEPTIONTABLE_ENTRY(1b,3b)
 	ASM_EXCEPTIONTABLE_ENTRY(2b,3b)
 
+ENDPROC_CFI(lstrnlen_user)
+
 	.procend
 
 
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From - Thu Nov 08 21:39:46 2018
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From: Al Viro <viro@ZenIV.linux.org.uk>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Fix access fault handling in pa_memcpy()
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On Mon, Mar 27, 2017 at 05:47:02PM +0200, Helge Deller wrote:
> pa_memcpy() is the major memcpy implementation in the parisc kernel which is
> used to do any kind of userspace/kernel memory copies.
> 
> Al Viro noticed various bugs in the implementation of pa_mempcy(), most notably
> that in case of faults it may report back to have copied more bytes than it
> actually did.
> 
> Fixing those bugs is quite hard in the C-implementation, because the compiler
> is messing around with the registers and we are not guaranteed that specific
> variables are always in the same processor registers. This makes proper fault
> handling complicated.
> 
> This patch implements pa_memcpy() in assembler. That way we have correct fault
> handling and adding a 64-bit copy routine was quite easy.

Hmm...  Is there any point trying to fall back from store fault to byte
copy?  Note that in copy_dstaligned() dst *is* aligned, so if the word
store fails, there's no realistic chance of having a byte store succeed.
--
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On 27.03.2017 19:57, Al Viro wrote:
> On Mon, Mar 27, 2017 at 05:47:02PM +0200, Helge Deller wrote:
>> pa_memcpy() is the major memcpy implementation in the parisc kernel which is
>> used to do any kind of userspace/kernel memory copies.
>>
>> Al Viro noticed various bugs in the implementation of pa_mempcy(), most notably
>> that in case of faults it may report back to have copied more bytes than it
>> actually did.
>>
>> Fixing those bugs is quite hard in the C-implementation, because the compiler
>> is messing around with the registers and we are not guaranteed that specific
>> variables are always in the same processor registers. This makes proper fault
>> handling complicated.
>>
>> This patch implements pa_memcpy() in assembler. That way we have correct fault
>> handling and adding a 64-bit copy routine was quite easy.
> 
> Hmm...  Is there any point trying to fall back from store fault to byte
> copy?  Note that in copy_dstaligned() dst *is* aligned, so if the word
> store fails, there's no realistic chance of having a byte store succeed.

Good point. I'll fix that.

Thanks,
Helge
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Subject: [PATCH v2] parisc: Fix access fault handling in pa_memcpy()
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pa_memcpy() is the major memcpy implementation in the parisc kernel which is
used to do any kind of userspace/kernel memory copies.

Al Viro noticed various bugs in the implementation of pa_mempcy(), most notably
that in case of faults it may report back to have copied more bytes than it
actually did.

Fixing those bugs is quite hard in the C-implementation, because the compiler
is messing around with the registers and we are not guaranteed that specific
variables are always in the same processor registers. This makes proper fault
handling complicated.

This patch implements pa_memcpy() in assembler. That way we have correct fault
handling and adding a 64-bit copy routine was quite easy.

Runtime tested with 32- and 64bit kernels.

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: John David Anglin <dave.anglin@bell.net>

---

Changes to v1:
- do not fall back to byte store from store fault (noticed by Al)
- better wording in comments (suggestions by Dave)
- keep notices from old implementation from Randolph (suggested by Dave)
- use local jump labels to avoid them showing up in vmlinux
- lots of smaller cleanups

diff --git a/arch/parisc/lib/lusercopy.S b/arch/parisc/lib/lusercopy.S
index 56845de..61af3e5 100644
--- a/arch/parisc/lib/lusercopy.S
+++ b/arch/parisc/lib/lusercopy.S
@@ -5,6 +5,7 @@
  *    Copyright (C) 2000 Richard Hirst <rhirst with parisc-linux.org>
  *    Copyright (C) 2001 Matthieu Delahaye <delahaym at esiee.fr>
  *    Copyright (C) 2003 Randolph Chung <tausq with parisc-linux.org>
+ *    Copyright (C) 2017 Helge Deller <deller@gmx.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -132,4 +133,322 @@ ENDPROC_CFI(lstrnlen_user)
 
 	.procend
 
+
+
+/*
+ * unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+ *
+ * Inputs:
+ * - sr1 already contains space of source region
+ * - sr2 already contains space of destination region
+ *
+ * Returns:
+ * - number of bytes not transferred.  If some bytes were not copied, this
+ *   means either a read or write fault happened.
+ *
+ * This code is based on a C-implementation of a copy routine written by
+ * Randolph Chung, which in turn was derived from the glibc.
+ *
+ * Several strategies are tried to try to get the best performance for various
+ * conditions. In the optimal case, we copy by loops that copy 32- or 16-bytes
+ * at a time using general registers.  Unaligned copies are handled either by
+ * aligning the destination and then using shift-and-write method, or in a few
+ * cases by falling back to a byte-at-a-time copy.
+ *
+ * Testing with various alignments and buffer sizes shows that this code is
+ * often >10x faster than a simple byte-at-a-time copy, even for strangely
+ * aligned operands. It is interesting to note that the glibc version of memcpy
+ * (written in C) is actually quite fast already. This routine is able to beat
+ * it by 30-40% for aligned copies because of the loop unrolling, but in some
+ * cases the glibc version is still slightly faster. This lends more
+ * credibility that gcc can generate very good code as long as we are careful.
+ *
+ * Possible optimizations:
+ * - add cache prefetching
+ * - try not to use the post-increment address modifiers; they may create
+ *   additional interlocks. Assumption is that those were only efficient on old
+ *   machines (pre PA8000 processors)
+ */
+
+	dst = arg0
+	src = arg1
+	len = arg2
+	t1  = r19
+	t2  = r20
+	t3  = r21
+	t4  = r22
+	srcspc = sr1
+	dstspc = sr2
+
+	t0 = r1
+	a1 = t1
+	a2 = t2
+	a3 = t3
+	a0 = t4
+
+	save_src = ret0
+	save_dst = ret1
+	save_len = arg3
+
+ENTRY_CFI(pa_memcpy)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+	/* short copy with less than 16 bytes? */
+	cmpib,>>=,n 15,len,.Lbyte_loop
+
+	/* same alignment? */
+	xor	src,dst,t0
+	extru	t0,31,2,t1
+	cmpib,<>,n  0,t1,.Lunaligned_copy
+
+#ifdef CONFIG_64BIT
+	/* only do 64-bit copies if we can get aligned. */
+	extru	t0,31,3,t1
+	cmpib,<>,n  0,t1,.Lalign_loop32
+
+	/* loop until we are 64-bit aligned */
+.Lalign_loop64:
+	extru	dst,31,3,t1
+	cmpib,=,n	0,t1,.Lcopy_loop_16
+20:	ldb,ma	1(srcspc,src),t1
+21:	stb,ma	t1,1(dstspc,dst)
+	b	.Lalign_loop64
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+	ldi	31,t0
+.Lcopy_loop_16:
+	cmpb,COND(>>=),n t0,len,.Lword_loop
+
+10:	ldd,ma	8(srcspc,src),t1
+11:	ldd,ma	8(srcspc,src),t2
+12:	std,ma	t1,8(dstspc,dst)
+13:	std,ma	t2,8(dstspc,dst)
+	ldo	-16(len),len
+14:	ldd,ma	8(srcspc,src),t1
+15:	ldd,ma	8(srcspc,src),t2
+16:	std,ma	t1,8(dstspc,dst)
+17:	std,ma	t2,8(dstspc,dst)
+
+	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(11b,.Lcopy16_fault0)
+	ASM_EXCEPTIONTABLE_ENTRY(12b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(13b,.Lcopy16_fault8)
+	ASM_EXCEPTIONTABLE_ENTRY(14b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(15b,.Lcopy16_fault0)
+	ASM_EXCEPTIONTABLE_ENTRY(16b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(17b,.Lcopy16_fault8)
+
+	b	.Lcopy_loop_16
+	ldo	-16(len),len
+
+.Lcopy16_fault0:
+10:	std	t1,0(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
+.Lcopy16_fault8:
+	b	.Lcopy_done
+	ldo	-8(len),len
+
+.Lword_loop:
+	cmpib,COND(>>=),n 3,len,.Lbyte_loop
+20:	ldw,ma	4(srcspc,src),t1
+21:	stw,ma	t1,4(dstspc,dst)
+	b	.Lword_loop
+	ldo	-4(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+#endif /* CONFIG_64BIT */
+
+	/* loop until we are 32bit aligned */
+.Lalign_loop32:
+	extru	dst,31,2,t1
+	cmpib,=,n	0,t1,.Lcopy_loop_4
+20:	ldb,ma	1(srcspc,src),t1
+21:	stb,ma	t1,1(dstspc,dst)
+	b	.Lalign_loop32
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+
+.Lcopy_loop_4:
+	cmpib,COND(>>=),n 15,len,.Lbyte_loop
+
+10:	ldw	0(srcspc,src),t1
+11:	ldw	4(srcspc,src),t2
+12:	ldw	8(srcspc,src),t3
+13:	ldw	12(srcspc,src),t4
+14:	stw,ma	t1,4(dstspc,dst)
+15:	stw,ma	t2,4(dstspc,dst)
+16:	stw,ma	t3,4(dstspc,dst)
+17:	stw,ma	t4,4(dstspc,dst)
+
+	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(11b,.Lbyte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(12b,.Lbyte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(13b,.Lbyte_loop_run)
+	ASM_EXCEPTIONTABLE_ENTRY(14b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(15b,.Lcopy_fault4)
+	ASM_EXCEPTIONTABLE_ENTRY(16b,.Lcopy_fault8)
+	ASM_EXCEPTIONTABLE_ENTRY(17b,.Lcopy_fault12)
+
+	ldo	16(src),src
+	b	.Lcopy_loop_4
+	ldo	-16(len),len
+
+.Lcopy_fault12:
+	ldo	-4(len),len
+.Lcopy_fault8:
+	ldo	-4(len),len
+.Lcopy_fault4:
+	b	.Lcopy_done
+	ldo	-4(len),len
+
+.Lbyte_loop:
+	cmpclr,COND(<>) len,%r0,%r0
+	b,n	.Lcopy_done
+.Lbyte_loop_run:
+20:	ldb,ma	1(srcspc,src),t1
+21:	stb,ma	t1,1(dstspc,dst)
+	b	.Lbyte_loop
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+.Lcopy_done:
+	bv	%r0(%r2)
+	copy	len,ret0
+
+
+	/* src and dst are not aligned the same way. */
+	/* need to go the hard way */
+.Lunaligned_copy:
+	/* align until dst is 32bit-word-aligned */
+	extru	dst,31,2,t1
+	cmpib,COND(=),n	0,t1,copy_dstaligned
+20:	ldb,ma	1(srcspc,src),t1
+21:	stb,ma	t1,1(dstspc,dst)
+	b	.Lunaligned_copy
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+copy_dstaligned:
+
+	/* store src, dst and len in safe place */
+	copy	src,save_src
+	copy	dst,save_dst
+	copy	len,save_len
+
+	/* len now needs give number of words to copy */
+	SHRREG	len,2,len
+
+	/*
+	 * Copy from a not-aligned src to an aligned dst using shifts.
+	 * Handles 4 words per loop.
+	 */
+
+	depw,z src,28,2,t0
+	subi 32,t0,t0
+	mtsar t0
+	extru len,31,2,t0
+	cmpib,= 2,t0,.Lcase2
+	/* Make src aligned by rounding it down.  */
+	depi 0,31,2,src
+
+	cmpiclr,<> 3,t0,%r0
+	b,n .Lcase3
+	cmpiclr,<> 1,t0,%r0
+	b,n .Lcase1
+.Lcase0:
+	cmpb,= %r0,len,.Lcda_finish
+	nop
+
+1:	ldw,ma 4(srcspc,src), a3
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+1:	ldw,ma 4(srcspc,src), a0
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	b,n .Ldo3
+.Lcase1:
+1:	ldw,ma 4(srcspc,src), a2
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+1:	ldw,ma 4(srcspc,src), a3
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	ldo -1(len),len
+	cmpb,=,n %r0,len,.Ldo0
+.Ldo4:
+1:	ldw,ma 4(srcspc,src), a0
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	shrpw a2, a3, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_wrfault)
+.Ldo3:
+1:	ldw,ma 4(srcspc,src), a1
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	shrpw a3, a0, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_wrfault)
+.Ldo2:
+1:	ldw,ma 4(srcspc,src), a2
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	shrpw a0, a1, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_wrfault)
+.Ldo1:
+1:	ldw,ma 4(srcspc,src), a3
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	shrpw a1, a2, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_wrfault)
+	ldo -4(len),len
+	cmpb,<> %r0,len,.Ldo4
+	nop
+.Ldo0:
+	shrpw a2, a3, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_wrfault)
+
+.Lcda_rdfault:
+.Lcda_finish:
+	/* calculate new src, dst and len and jump to byte-copy loop */
+	sub	dst,save_dst,t0
+	add	save_src,t0,src
+	b	.Lbyte_loop
+	sub	save_len,t0,len
+
+
+.Lcase3:
+1:	ldw,ma 4(srcspc,src), a0
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+1:	ldw,ma 4(srcspc,src), a1
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	b .Ldo2
+	ldo 1(len),len
+.Lcase2:
+1:	ldw,ma 4(srcspc,src), a1
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+1:	ldw,ma 4(srcspc,src), a2
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	b .Ldo1
+	ldo 2(len),len
+
+.Lcda_wrfault:
+	/* write fault: calculate written len and exit */
+	sub	dst,save_dst,t0
+	b	.Lcopy_done
+	sub	save_len,t0,len
+
+	.exit
+ENDPROC_CFI(pa_memcpy)
+	.procend
+
 	.end
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index f82ff10..b3d47ec 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -2,7 +2,7 @@
  *    Optimized memory copy routines.
  *
  *    Copyright (C) 2004 Randolph Chung <tausq@debian.org>
- *    Copyright (C) 2013 Helge Deller <deller@gmx.de>
+ *    Copyright (C) 2013-2017 Helge Deller <deller@gmx.de>
  *
  *    This program is free software; you can redistribute it and/or modify
  *    it under the terms of the GNU General Public License as published by
@@ -21,474 +21,21 @@
  *    Portions derived from the GNU C Library
  *    Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc.
  *
- * Several strategies are tried to try to get the best performance for various
- * conditions. In the optimal case, we copy 64-bytes in an unrolled loop using 
- * fp regs. This is followed by loops that copy 32- or 16-bytes at a time using
- * general registers.  Unaligned copies are handled either by aligning the 
- * destination and then using shift-and-write method, or in a few cases by 
- * falling back to a byte-at-a-time copy.
- *
- * I chose to implement this in C because it is easier to maintain and debug,
- * and in my experiments it appears that the C code generated by gcc (3.3/3.4
- * at the time of writing) is fairly optimal. Unfortunately some of the 
- * semantics of the copy routine (exception handling) is difficult to express
- * in C, so we have to play some tricks to get it to work.
- *
- * All the loads and stores are done via explicit asm() code in order to use
- * the right space registers. 
- * 
- * Testing with various alignments and buffer sizes shows that this code is 
- * often >10x faster than a simple byte-at-a-time copy, even for strangely
- * aligned operands. It is interesting to note that the glibc version
- * of memcpy (written in C) is actually quite fast already. This routine is 
- * able to beat it by 30-40% for aligned copies because of the loop unrolling, 
- * but in some cases the glibc version is still slightly faster. This lends 
- * more credibility that gcc can generate very good code as long as we are 
- * careful.
- *
- * TODO:
- * - cache prefetching needs more experimentation to get optimal settings
- * - try not to use the post-increment address modifiers; they create additional
- *   interlocks
- * - replace byte-copy loops with stybs sequences
  */
 
-#ifdef __KERNEL__
 #include <linux/module.h>
 #include <linux/compiler.h>
 #include <linux/uaccess.h>
-#define s_space "%%sr1"
-#define d_space "%%sr2"
-#else
-#include "memcpy.h"
-#define s_space "%%sr0"
-#define d_space "%%sr0"
-#define pa_memcpy new2_copy
-#endif
 
 DECLARE_PER_CPU(struct exception_data, exception_data);
 
-#define preserve_branch(label)	do {					\
-	volatile int dummy = 0;						\
-	/* The following branch is never taken, it's just here to  */	\
-	/* prevent gcc from optimizing away our exception code. */ 	\
-	if (unlikely(dummy != dummy))					\
-		goto label;						\
-} while (0)
-
 #define get_user_space() (segment_eq(get_fs(), KERNEL_DS) ? 0 : mfsp(3))
 #define get_kernel_space() (0)
 
-#define MERGE(w0, sh_1, w1, sh_2)  ({					\
-	unsigned int _r;						\
-	asm volatile (							\
-	"mtsar %3\n"							\
-	"shrpw %1, %2, %%sar, %0\n"					\
-	: "=r"(_r)							\
-	: "r"(w0), "r"(w1), "r"(sh_2)					\
-	);								\
-	_r;								\
-})
-#define THRESHOLD	16
-
-#ifdef DEBUG_MEMCPY
-#define DPRINTF(fmt, args...) do { printk(KERN_DEBUG "%s:%d:%s ", __FILE__, __LINE__, __func__ ); printk(KERN_DEBUG fmt, ##args ); } while (0)
-#else
-#define DPRINTF(fmt, args...)
-#endif
-
-#define def_load_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e)	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn ",ma " #_sz "(" _s ",%1), %0\n\t"	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: _tt(_t), "+r"(_a)				\
-	: 						\
-	: "r8")
-
-#define def_store_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn ",ma %1, " #_sz "(" _s ",%0)\n\t"	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: "+r"(_a) 					\
-	: _tt(_t)					\
-	: "r8")
-
-#define ldbma(_s, _a, _t, _e) def_load_ai_insn(ldbs,1,"=r",_s,_a,_t,_e)
-#define stbma(_s, _t, _a, _e) def_store_ai_insn(stbs,1,"r",_s,_a,_t,_e)
-#define ldwma(_s, _a, _t, _e) def_load_ai_insn(ldw,4,"=r",_s,_a,_t,_e)
-#define stwma(_s, _t, _a, _e) def_store_ai_insn(stw,4,"r",_s,_a,_t,_e)
-#define flddma(_s, _a, _t, _e) def_load_ai_insn(fldd,8,"=f",_s,_a,_t,_e)
-#define fstdma(_s, _t, _a, _e) def_store_ai_insn(fstd,8,"f",_s,_a,_t,_e)
-
-#define def_load_insn(_insn,_tt,_s,_o,_a,_t,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn " " #_o "(" _s ",%1), %0\n\t"	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: _tt(_t) 					\
-	: "r"(_a)					\
-	: "r8")
-
-#define def_store_insn(_insn,_tt,_s,_t,_o,_a,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn " %0, " #_o "(" _s ",%1)\n\t" 	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: 						\
-	: _tt(_t), "r"(_a)				\
-	: "r8")
-
-#define ldw(_s,_o,_a,_t,_e)	def_load_insn(ldw,"=r",_s,_o,_a,_t,_e)
-#define stw(_s,_t,_o,_a,_e) 	def_store_insn(stw,"r",_s,_t,_o,_a,_e)
-
-#ifdef  CONFIG_PREFETCH
-static inline void prefetch_src(const void *addr)
-{
-	__asm__("ldw 0(" s_space ",%0), %%r0" : : "r" (addr));
-}
-
-static inline void prefetch_dst(const void *addr)
-{
-	__asm__("ldd 0(" d_space ",%0), %%r0" : : "r" (addr));
-}
-#else
-#define prefetch_src(addr) do { } while(0)
-#define prefetch_dst(addr) do { } while(0)
-#endif
-
-#define PA_MEMCPY_OK		0
-#define PA_MEMCPY_LOAD_ERROR	1
-#define PA_MEMCPY_STORE_ERROR	2
-
-/* Copy from a not-aligned src to an aligned dst, using shifts. Handles 4 words
- * per loop.  This code is derived from glibc. 
- */
-static noinline unsigned long copy_dstaligned(unsigned long dst,
-					unsigned long src, unsigned long len)
-{
-	/* gcc complains that a2 and a3 may be uninitialized, but actually
-	 * they cannot be.  Initialize a2/a3 to shut gcc up.
-	 */
-	register unsigned int a0, a1, a2 = 0, a3 = 0;
-	int sh_1, sh_2;
-
-	/* prefetch_src((const void *)src); */
-
-	/* Calculate how to shift a word read at the memory operation
-	   aligned srcp to make it aligned for copy.  */
-	sh_1 = 8 * (src % sizeof(unsigned int));
-	sh_2 = 8 * sizeof(unsigned int) - sh_1;
-
-	/* Make src aligned by rounding it down.  */
-	src &= -sizeof(unsigned int);
-
-	switch (len % 4)
-	{
-		case 2:
-			/* a1 = ((unsigned int *) src)[0];
-			   a2 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a1, cda_ldw_exc);
-			ldw(s_space, 4, src, a2, cda_ldw_exc);
-			src -= 1 * sizeof(unsigned int);
-			dst -= 3 * sizeof(unsigned int);
-			len += 2;
-			goto do1;
-		case 3:
-			/* a0 = ((unsigned int *) src)[0];
-			   a1 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a0, cda_ldw_exc);
-			ldw(s_space, 4, src, a1, cda_ldw_exc);
-			src -= 0 * sizeof(unsigned int);
-			dst -= 2 * sizeof(unsigned int);
-			len += 1;
-			goto do2;
-		case 0:
-			if (len == 0)
-				return PA_MEMCPY_OK;
-			/* a3 = ((unsigned int *) src)[0];
-			   a0 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a3, cda_ldw_exc);
-			ldw(s_space, 4, src, a0, cda_ldw_exc);
-			src -=-1 * sizeof(unsigned int);
-			dst -= 1 * sizeof(unsigned int);
-			len += 0;
-			goto do3;
-		case 1:
-			/* a2 = ((unsigned int *) src)[0];
-			   a3 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a2, cda_ldw_exc);
-			ldw(s_space, 4, src, a3, cda_ldw_exc);
-			src -=-2 * sizeof(unsigned int);
-			dst -= 0 * sizeof(unsigned int);
-			len -= 1;
-			if (len == 0)
-				goto do0;
-			goto do4;			/* No-op.  */
-	}
-
-	do
-	{
-		/* prefetch_src((const void *)(src + 4 * sizeof(unsigned int))); */
-do4:
-		/* a0 = ((unsigned int *) src)[0]; */
-		ldw(s_space, 0, src, a0, cda_ldw_exc);
-		/* ((unsigned int *) dst)[0] = MERGE (a2, sh_1, a3, sh_2); */
-		stw(d_space, MERGE (a2, sh_1, a3, sh_2), 0, dst, cda_stw_exc);
-do3:
-		/* a1 = ((unsigned int *) src)[1]; */
-		ldw(s_space, 4, src, a1, cda_ldw_exc);
-		/* ((unsigned int *) dst)[1] = MERGE (a3, sh_1, a0, sh_2); */
-		stw(d_space, MERGE (a3, sh_1, a0, sh_2), 4, dst, cda_stw_exc);
-do2:
-		/* a2 = ((unsigned int *) src)[2]; */
-		ldw(s_space, 8, src, a2, cda_ldw_exc);
-		/* ((unsigned int *) dst)[2] = MERGE (a0, sh_1, a1, sh_2); */
-		stw(d_space, MERGE (a0, sh_1, a1, sh_2), 8, dst, cda_stw_exc);
-do1:
-		/* a3 = ((unsigned int *) src)[3]; */
-		ldw(s_space, 12, src, a3, cda_ldw_exc);
-		/* ((unsigned int *) dst)[3] = MERGE (a1, sh_1, a2, sh_2); */
-		stw(d_space, MERGE (a1, sh_1, a2, sh_2), 12, dst, cda_stw_exc);
-
-		src += 4 * sizeof(unsigned int);
-		dst += 4 * sizeof(unsigned int);
-		len -= 4;
-	}
-	while (len != 0);
-
-do0:
-	/* ((unsigned int *) dst)[0] = MERGE (a2, sh_1, a3, sh_2); */
-	stw(d_space, MERGE (a2, sh_1, a3, sh_2), 0, dst, cda_stw_exc);
-
-	preserve_branch(handle_load_error);
-	preserve_branch(handle_store_error);
-
-	return PA_MEMCPY_OK;
-
-handle_load_error:
-	__asm__ __volatile__ ("cda_ldw_exc:\n");
-	return PA_MEMCPY_LOAD_ERROR;
-
-handle_store_error:
-	__asm__ __volatile__ ("cda_stw_exc:\n");
-	return PA_MEMCPY_STORE_ERROR;
-}
-
-
-/* Returns PA_MEMCPY_OK, PA_MEMCPY_LOAD_ERROR or PA_MEMCPY_STORE_ERROR.
- * In case of an access fault the faulty address can be read from the per_cpu
- * exception data struct. */
-static noinline unsigned long pa_memcpy_internal(void *dstp, const void *srcp,
-					unsigned long len)
-{
-	register unsigned long src, dst, t1, t2, t3;
-	register unsigned char *pcs, *pcd;
-	register unsigned int *pws, *pwd;
-	register double *pds, *pdd;
-	unsigned long ret;
-
-	src = (unsigned long)srcp;
-	dst = (unsigned long)dstp;
-	pcs = (unsigned char *)srcp;
-	pcd = (unsigned char *)dstp;
-
-	/* prefetch_src((const void *)srcp); */
-
-	if (len < THRESHOLD)
-		goto byte_copy;
-
-	/* Check alignment */
-	t1 = (src ^ dst);
-	if (unlikely(t1 & (sizeof(double)-1)))
-		goto unaligned_copy;
-
-	/* src and dst have same alignment. */
-
-	/* Copy bytes till we are double-aligned. */
-	t2 = src & (sizeof(double) - 1);
-	if (unlikely(t2 != 0)) {
-		t2 = sizeof(double) - t2;
-		while (t2 && len) {
-			/* *pcd++ = *pcs++; */
-			ldbma(s_space, pcs, t3, pmc_load_exc);
-			len--;
-			stbma(d_space, t3, pcd, pmc_store_exc);
-			t2--;
-		}
-	}
-
-	pds = (double *)pcs;
-	pdd = (double *)pcd;
-
-#if 0
-	/* Copy 8 doubles at a time */
-	while (len >= 8*sizeof(double)) {
-		register double r1, r2, r3, r4, r5, r6, r7, r8;
-		/* prefetch_src((char *)pds + L1_CACHE_BYTES); */
-		flddma(s_space, pds, r1, pmc_load_exc);
-		flddma(s_space, pds, r2, pmc_load_exc);
-		flddma(s_space, pds, r3, pmc_load_exc);
-		flddma(s_space, pds, r4, pmc_load_exc);
-		fstdma(d_space, r1, pdd, pmc_store_exc);
-		fstdma(d_space, r2, pdd, pmc_store_exc);
-		fstdma(d_space, r3, pdd, pmc_store_exc);
-		fstdma(d_space, r4, pdd, pmc_store_exc);
-
-#if 0
-		if (L1_CACHE_BYTES <= 32)
-			prefetch_src((char *)pds + L1_CACHE_BYTES);
-#endif
-		flddma(s_space, pds, r5, pmc_load_exc);
-		flddma(s_space, pds, r6, pmc_load_exc);
-		flddma(s_space, pds, r7, pmc_load_exc);
-		flddma(s_space, pds, r8, pmc_load_exc);
-		fstdma(d_space, r5, pdd, pmc_store_exc);
-		fstdma(d_space, r6, pdd, pmc_store_exc);
-		fstdma(d_space, r7, pdd, pmc_store_exc);
-		fstdma(d_space, r8, pdd, pmc_store_exc);
-		len -= 8*sizeof(double);
-	}
-#endif
-
-	pws = (unsigned int *)pds;
-	pwd = (unsigned int *)pdd;
-
-word_copy:
-	while (len >= 8*sizeof(unsigned int)) {
-		register unsigned int r1,r2,r3,r4,r5,r6,r7,r8;
-		/* prefetch_src((char *)pws + L1_CACHE_BYTES); */
-		ldwma(s_space, pws, r1, pmc_load_exc);
-		ldwma(s_space, pws, r2, pmc_load_exc);
-		ldwma(s_space, pws, r3, pmc_load_exc);
-		ldwma(s_space, pws, r4, pmc_load_exc);
-		stwma(d_space, r1, pwd, pmc_store_exc);
-		stwma(d_space, r2, pwd, pmc_store_exc);
-		stwma(d_space, r3, pwd, pmc_store_exc);
-		stwma(d_space, r4, pwd, pmc_store_exc);
-
-		ldwma(s_space, pws, r5, pmc_load_exc);
-		ldwma(s_space, pws, r6, pmc_load_exc);
-		ldwma(s_space, pws, r7, pmc_load_exc);
-		ldwma(s_space, pws, r8, pmc_load_exc);
-		stwma(d_space, r5, pwd, pmc_store_exc);
-		stwma(d_space, r6, pwd, pmc_store_exc);
-		stwma(d_space, r7, pwd, pmc_store_exc);
-		stwma(d_space, r8, pwd, pmc_store_exc);
-		len -= 8*sizeof(unsigned int);
-	}
-
-	while (len >= 4*sizeof(unsigned int)) {
-		register unsigned int r1,r2,r3,r4;
-		ldwma(s_space, pws, r1, pmc_load_exc);
-		ldwma(s_space, pws, r2, pmc_load_exc);
-		ldwma(s_space, pws, r3, pmc_load_exc);
-		ldwma(s_space, pws, r4, pmc_load_exc);
-		stwma(d_space, r1, pwd, pmc_store_exc);
-		stwma(d_space, r2, pwd, pmc_store_exc);
-		stwma(d_space, r3, pwd, pmc_store_exc);
-		stwma(d_space, r4, pwd, pmc_store_exc);
-		len -= 4*sizeof(unsigned int);
-	}
-
-	pcs = (unsigned char *)pws;
-	pcd = (unsigned char *)pwd;
-
-byte_copy:
-	while (len) {
-		/* *pcd++ = *pcs++; */
-		ldbma(s_space, pcs, t3, pmc_load_exc);
-		stbma(d_space, t3, pcd, pmc_store_exc);
-		len--;
-	}
-
-	return PA_MEMCPY_OK;
-
-unaligned_copy:
-	/* possibly we are aligned on a word, but not on a double... */
-	if (likely((t1 & (sizeof(unsigned int)-1)) == 0)) {
-		t2 = src & (sizeof(unsigned int) - 1);
-
-		if (unlikely(t2 != 0)) {
-			t2 = sizeof(unsigned int) - t2;
-			while (t2) {
-				/* *pcd++ = *pcs++; */
-				ldbma(s_space, pcs, t3, pmc_load_exc);
-				stbma(d_space, t3, pcd, pmc_store_exc);
-				len--;
-				t2--;
-			}
-		}
-
-		pws = (unsigned int *)pcs;
-		pwd = (unsigned int *)pcd;
-		goto word_copy;
-	}
-
-	/* Align the destination.  */
-	if (unlikely((dst & (sizeof(unsigned int) - 1)) != 0)) {
-		t2 = sizeof(unsigned int) - (dst & (sizeof(unsigned int) - 1));
-		while (t2) {
-			/* *pcd++ = *pcs++; */
-			ldbma(s_space, pcs, t3, pmc_load_exc);
-			stbma(d_space, t3, pcd, pmc_store_exc);
-			len--;
-			t2--;
-		}
-		dst = (unsigned long)pcd;
-		src = (unsigned long)pcs;
-	}
-
-	ret = copy_dstaligned(dst, src, len / sizeof(unsigned int));
-	if (ret)
-		return ret;
-
-	pcs += (len & -sizeof(unsigned int));
-	pcd += (len & -sizeof(unsigned int));
-	len %= sizeof(unsigned int);
-
-	preserve_branch(handle_load_error);
-	preserve_branch(handle_store_error);
-
-	goto byte_copy;
-
-handle_load_error:
-	__asm__ __volatile__ ("pmc_load_exc:\n");
-	return PA_MEMCPY_LOAD_ERROR;
-
-handle_store_error:
-	__asm__ __volatile__ ("pmc_store_exc:\n");
-	return PA_MEMCPY_STORE_ERROR;
-}
-
-
 /* Returns 0 for success, otherwise, returns number of bytes not transferred. */
-static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
-{
-	unsigned long ret, fault_addr, reference;
-	struct exception_data *d;
-
-	ret = pa_memcpy_internal(dstp, srcp, len);
-	if (likely(ret == PA_MEMCPY_OK))
-		return 0;
-
-	/* if a load or store fault occured we can get the faulty addr */
-	d = this_cpu_ptr(&exception_data);
-	fault_addr = d->fault_addr;
-
-	/* error in load or store? */
-	if (ret == PA_MEMCPY_LOAD_ERROR)
-		reference = (unsigned long) srcp;
-	else
-		reference = (unsigned long) dstp;
+extern unsigned long pa_memcpy(void *dst, const void *src,
+				unsigned long len);
 
-	DPRINTF("pa_memcpy: fault type = %lu, len=%lu fault_addr=%lu ref=%lu\n",
-		ret, len, fault_addr, reference);
-
-	if (fault_addr >= reference)
-		return len - (fault_addr - reference);
-	else
-		return len;
-}
-
-#ifdef __KERNEL__
 unsigned long __copy_to_user(void __user *dst, const void *src,
 			     unsigned long len)
 {
@@ -537,5 +84,3 @@ long probe_kernel_read(void *dst, const void *src, size_t size)
 
 	return __probe_kernel_read(dst, src, size);
 }

From - Thu Nov 08 21:39:46 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH v2] parisc: Fix access fault handling in pa_memcpy() -
 testcase
Date: Tue, 28 Mar 2017 16:40:36 +0200
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Cc: Al Viro <viro@ZenIV.linux.org.uk>
To: linux-parisc@vger.kernel.org,
        James Bottomley <James.Bottomley@HansenPartnership.com>,
        John David Anglin <dave.anglin@bell.net>
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Just for the mailing list archive:
Attached is the testcase, sent to me by Al Viro, which I used to check
the copy_from_user() changes.
Originally written by Andrey Ryabinin <a.ryabinin@samsung.com>.

Helge


diff --git a/lib/Makefile b/lib/Makefile
index 320ac46a..0548bda 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -242,3 +242,5 @@ UBSAN_SANITIZE_ubsan.o := n
 obj-$(CONFIG_SBITMAP) += sbitmap.o
 
 obj-$(CONFIG_PARMAN) += parman.o
+
+obj-m += test-cfu.o
diff --git a/lib/test-cfu.c b/lib/test-cfu.c
new file mode 100644
index 0000000..219fc82
--- /dev/null
+++ b/lib/test-cfu.c
@@ -0,0 +1,107 @@
+/*
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Author: Andrey Ryabinin <a.ryabinin@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#define pr_fmt(fmt) "cfu test: %s " fmt, __func__
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/printk.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/uaccess.h>
+#include <linux/module.h>
+
+static char pat[2 * PAGE_SIZE];
+static void run_test(int n, int m, char __user *up, char *kp)
+{
+	int i;
+	for (i = 0; i < 4; i++) {
+		int r;
+		memset(kp, 0, 2 * PAGE_SIZE);
+		r = __copy_from_user_inatomic(kp + i, up, m);
+		if (m <= n) {
+			if (r) {
+				pr_err("bogus fault (%d, %d, %d)\n", r, m, n);
+				return;
+			}
+		} else {
+			if (r < m - n) {
+				pr_err("claims too much (%d, %d, %d)\n", r, m, n);
+				return;
+			}
+		}
+		r = m - r;	/* claim to have copied that much */
+		if (memcmp(kp + i, pat + PAGE_SIZE - n, r)) {
+			int j;
+			pr_err("crap in copy (%d, %d, %d)", r, m, n);
+			for (j = 0; j < r; j++) {
+				if (!kp[i+j]) {
+					if (!memcmp(kp + i + j, pat + PAGE_SIZE, PAGE_SIZE)) {
+						pr_cont(" only %d copied\n", j);
+						return;
+					}
+					break;
+				}
+			}
+			pr_cont("\n");
+			return;
+		}
+		if (memcmp(kp + i + r, pat + PAGE_SIZE, PAGE_SIZE)) {
+			pr_err("crap after copy (%d, %d, %d)\n", r, m, n);
+			return;
+		}
+	}
+}
+
+static int __init cfu_test(void)
+{
+	char *kp;
+	char __user *up;
+	int i;
+
+	kp = kmalloc(PAGE_SIZE * 2, GFP_KERNEL);
+	if (!kp)
+		return -EAGAIN;
+
+	up = (char __user *)vm_mmap(NULL, 0, 2 * PAGE_SIZE,
+			    PROT_READ | PROT_WRITE | PROT_EXEC,
+			    MAP_ANONYMOUS | MAP_PRIVATE, 0);
+	if (IS_ERR(up)) {
+		pr_err("Failed to allocate user memory\n");
+		kfree(kp);
+		return -EAGAIN;
+	}
+	vm_munmap((unsigned long)up + PAGE_SIZE, PAGE_SIZE);
+
+	for (i = 0; i < PAGE_SIZE; i++)
+		pat[i] = 128 | i;
+	if (copy_to_user(up, pat, PAGE_SIZE)) {
+		pr_err("failed to copy to user memory\n");
+		goto out;
+	}
+
+	for (i = 0; i <= 128; i++) {
+		int j;
+		pr_err("trying %d\n", i);
+		for (j = 0; j <= 128; j++)
+			run_test(i, j, up + PAGE_SIZE - i, kp);
+	}
+
+out:
+	vm_munmap((unsigned long)up, PAGE_SIZE);
+	kfree(kp);
+	return -EAGAIN;
+}
+
+module_init(cfu_test);
+MODULE_LICENSE("GPL");
--
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Commit 73580dac7618 ("parisc: Fix system shutdown halt") introduced an endless
loop for systems which don't provide a software power off function.  But the
soft lockup detector will detect this and report stalled CPUs after some time.
Avoid those unwanted warnings by disabling the soft lockup detector.

Fixes: 73580dac7618 ("parisc: Fix system shutdown halt")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.9+

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index b76f503..4516a5b 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -143,6 +143,8 @@ void machine_power_off(void)
 	printk(KERN_EMERG "System shut down completed.\n"
 	       "Please power this system off now.");
 
+	/* prevent soft lockup/stalled CPU messages for endless loop. */
+	rcu_sysrq_start();
 	for (;;);
 }
 
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Subject: [PATCH v3] parisc: Fix access fault handling in pa_memcpy()
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pa_memcpy() is the major memcpy implementation in the parisc kernel which is
used to do any kind of userspace/kernel memory copies.

Al Viro noticed various bugs in the implementation of pa_mempcy(), most notably
that in case of faults it may report back to have copied more bytes than it
actually did.

Fixing those bugs is quite hard in the C-implementation, because the compiler
is messing around with the registers and we are not guaranteed that specific
variables are always in the same processor registers. This makes proper fault
handling complicated.

This patch implements pa_memcpy() in assembler. That way we have correct fault
handling and adding a 64-bit copy routine was quite easy.

Runtime tested with 32- and 64bit kernels.

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

---
Changes to v2 (most patches by Dave Anglin):
- optimize cpu scheduling: CPU can do either 2 loads or one store
  in parallel
- use less fault handlers by calculating not-copied len via diff of
  planned end and current dst target
- move fault handlers to the end and out of main loop

Changes to v1:
- do not fall back to byte store from store fault (noticed by Al)
- better wording in comments (suggestions by Dave)
- keep notices from old implementation from Randolph (suggested by Dave)
- use local jump labels to avoid them showing up in vmlinux
- lots of smaller cleanups



diff --git a/arch/parisc/lib/lusercopy.S b/arch/parisc/lib/lusercopy.S
index 56845de..f01188c 100644
--- a/arch/parisc/lib/lusercopy.S
+++ b/arch/parisc/lib/lusercopy.S
@@ -5,6 +5,8 @@
  *    Copyright (C) 2000 Richard Hirst <rhirst with parisc-linux.org>
  *    Copyright (C) 2001 Matthieu Delahaye <delahaym at esiee.fr>
  *    Copyright (C) 2003 Randolph Chung <tausq with parisc-linux.org>
+ *    Copyright (C) 2017 Helge Deller <deller@gmx.de>
+ *    Copyright (C) 2017 John David Anglin <dave.anglin@bell.net>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -132,4 +134,320 @@ ENDPROC_CFI(lstrnlen_user)
 
 	.procend
 
+
+
+/*
+ * unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+ *
+ * Inputs:
+ * - sr1 already contains space of source region
+ * - sr2 already contains space of destination region
+ *
+ * Returns:
+ * - number of bytes that could not be copied.
+ *   On success, this will be zero.
+ *
+ * This code is based on a C-implementation of a copy routine written by
+ * Randolph Chung, which in turn was derived from the glibc.
+ *
+ * Several strategies are tried to try to get the best performance for various
+ * conditions. In the optimal case, we copy by loops that copy 32- or 16-bytes
+ * at a time using general registers.  Unaligned copies are handled either by
+ * aligning the destination and then using shift-and-write method, or in a few
+ * cases by falling back to a byte-at-a-time copy.
+ *
+ * Testing with various alignments and buffer sizes shows that this code is
+ * often >10x faster than a simple byte-at-a-time copy, even for strangely
+ * aligned operands. It is interesting to note that the glibc version of memcpy
+ * (written in C) is actually quite fast already. This routine is able to beat
+ * it by 30-40% for aligned copies because of the loop unrolling, but in some
+ * cases the glibc version is still slightly faster. This lends more
+ * credibility that gcc can generate very good code as long as we are careful.
+ *
+ * Possible optimizations:
+ * - add cache prefetching
+ * - try not to use the post-increment address modifiers; they may create
+ *   additional interlocks. Assumption is that those were only efficient on old
+ *   machines (pre PA8000 processors)
+ */
+
+	dst = arg0
+	src = arg1
+	len = arg2
+	end = arg3
+	t1  = r19
+	t2  = r20
+	t3  = r21
+	t4  = r22
+	srcspc = sr1
+	dstspc = sr2
+
+	t0 = r1
+	a1 = t1
+	a2 = t2
+	a3 = t3
+	a0 = t4
+
+	save_src = ret0
+	save_dst = ret1
+	save_len = r31
+
+ENTRY_CFI(pa_memcpy)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+	/* Last destination address */
+	add	dst,len,end
+
+	/* short copy with less than 16 bytes? */
+	cmpib,>>=,n 15,len,.Lbyte_loop
+
+	/* same alignment? */
+	xor	src,dst,t0
+	extru	t0,31,2,t1
+	cmpib,<>,n  0,t1,.Lunaligned_copy
+
+#ifdef CONFIG_64BIT
+	/* only do 64-bit copies if we can get aligned. */
+	extru	t0,31,3,t1
+	cmpib,<>,n  0,t1,.Lalign_loop32
+
+	/* loop until we are 64-bit aligned */
+.Lalign_loop64:
+	extru	dst,31,3,t1
+	cmpib,=,n	0,t1,.Lcopy_loop_16
+20:	ldb,ma	1(srcspc,src),t1
+21:	stb,ma	t1,1(dstspc,dst)
+	b	.Lalign_loop64
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+	ldi	31,t0
+.Lcopy_loop_16:
+	cmpb,COND(>>=),n t0,len,.Lword_loop
+
+10:	ldd	0(srcspc,src),t1
+11:	ldd	8(srcspc,src),t2
+	ldo	16(src),src
+12:	std,ma	t1,8(dstspc,dst)
+13:	std,ma	t2,8(dstspc,dst)
+14:	ldd	0(srcspc,src),t1
+15:	ldd	8(srcspc,src),t2
+	ldo	16(src),src
+16:	std,ma	t1,8(dstspc,dst)
+17:	std,ma	t2,8(dstspc,dst)
+
+	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(11b,.Lcopy16_fault)
+	ASM_EXCEPTIONTABLE_ENTRY(12b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(13b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(14b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(15b,.Lcopy16_fault)
+	ASM_EXCEPTIONTABLE_ENTRY(16b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(17b,.Lcopy_done)
+
+	b	.Lcopy_loop_16
+	ldo	-32(len),len
+
+.Lword_loop:
+	cmpib,COND(>>=),n 3,len,.Lbyte_loop
+20:	ldw,ma	4(srcspc,src),t1
+21:	stw,ma	t1,4(dstspc,dst)
+	b	.Lword_loop
+	ldo	-4(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+#endif /* CONFIG_64BIT */
+
+	/* loop until we are 32-bit aligned */
+.Lalign_loop32:
+	extru	dst,31,2,t1
+	cmpib,=,n	0,t1,.Lcopy_loop_4
+20:	ldb,ma	1(srcspc,src),t1
+21:	stb,ma	t1,1(dstspc,dst)
+	b	.Lalign_loop32
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+
+.Lcopy_loop_4:
+	cmpib,COND(>>=),n 15,len,.Lbyte_loop
+
+10:	ldw	0(srcspc,src),t1
+11:	ldw	4(srcspc,src),t2
+12:	stw,ma	t1,4(dstspc,dst)
+13:	stw,ma	t2,4(dstspc,dst)
+14:	ldw	8(srcspc,src),t1
+15:	ldw	12(srcspc,src),t2
+	ldo	16(src),src
+16:	stw,ma	t1,4(dstspc,dst)
+17:	stw,ma	t2,4(dstspc,dst)
+
+	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(11b,.Lcopy8_fault)
+	ASM_EXCEPTIONTABLE_ENTRY(12b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(13b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(14b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(15b,.Lcopy8_fault)
+	ASM_EXCEPTIONTABLE_ENTRY(16b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(17b,.Lcopy_done)
+
+	b	.Lcopy_loop_4
+	ldo	-16(len),len
+
+.Lbyte_loop:
+	cmpclr,COND(<>) len,%r0,%r0
+	b,n	.Lcopy_done
+20:	ldb	0(srcspc,src),t1
+	ldo	1(src),src
+21:	stb,ma	t1,1(dstspc,dst)
+	b	.Lbyte_loop
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+.Lcopy_done:
+	bv	%r0(%r2)
+	sub	end,dst,ret0
+
+
+	/* src and dst are not aligned the same way. */
+	/* need to go the hard way */
+.Lunaligned_copy:
+	/* align until dst is 32bit-word-aligned */
+	extru	dst,31,2,t1
+	cmpib,COND(=),n	0,t1,.Lcopy_dstaligned
+20:	ldb	0(srcspc,src),t1
+	ldo	1(src),src
+21:	stb,ma	t1,1(dstspc,dst)
+	b	.Lunaligned_copy
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+.Lcopy_dstaligned:
+
+	/* store src, dst and len in safe place */
+	copy	src,save_src
+	copy	dst,save_dst
+	copy	len,save_len
+
+	/* len now needs give number of words to copy */
+	SHRREG	len,2,len
+
+	/*
+	 * Copy from a not-aligned src to an aligned dst using shifts.
+	 * Handles 4 words per loop.
+	 */
+
+	depw,z src,28,2,t0
+	subi 32,t0,t0
+	mtsar t0
+	extru len,31,2,t0
+	cmpib,= 2,t0,.Lcase2
+	/* Make src aligned by rounding it down.  */
+	depi 0,31,2,src
+
+	cmpiclr,<> 3,t0,%r0
+	b,n .Lcase3
+	cmpiclr,<> 1,t0,%r0
+	b,n .Lcase1
+.Lcase0:
+	cmpb,= %r0,len,.Lcda_finish
+	nop
+
+1:	ldw,ma 4(srcspc,src), a3
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+1:	ldw,ma 4(srcspc,src), a0
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	b,n .Ldo3
+.Lcase1:
+1:	ldw,ma 4(srcspc,src), a2
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+1:	ldw,ma 4(srcspc,src), a3
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	ldo -1(len),len
+	cmpb,=,n %r0,len,.Ldo0
+.Ldo4:
+1:	ldw,ma 4(srcspc,src), a0
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	shrpw a2, a3, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcopy_done)
+.Ldo3:
+1:	ldw,ma 4(srcspc,src), a1
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	shrpw a3, a0, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcopy_done)
+.Ldo2:
+1:	ldw,ma 4(srcspc,src), a2
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	shrpw a0, a1, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcopy_done)
+.Ldo1:
+1:	ldw,ma 4(srcspc,src), a3
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	shrpw a1, a2, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcopy_done)
+	ldo -4(len),len
+	cmpb,<> %r0,len,.Ldo4
+	nop
+.Ldo0:
+	shrpw a2, a3, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcopy_done)
+
+.Lcda_rdfault:
+.Lcda_finish:
+	/* calculate new src, dst and len and jump to byte-copy loop */
+	sub	dst,save_dst,t0
+	add	save_src,t0,src
+	b	.Lbyte_loop
+	sub	save_len,t0,len
+
+.Lcase3:
+1:	ldw,ma 4(srcspc,src), a0
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+1:	ldw,ma 4(srcspc,src), a1
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	b .Ldo2
+	ldo 1(len),len
+.Lcase2:
+1:	ldw,ma 4(srcspc,src), a1
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+1:	ldw,ma 4(srcspc,src), a2
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	b .Ldo1
+	ldo 2(len),len
+
+
+	/* fault exception fixup handlers: */
+#ifdef CONFIG_64BIT
+.Lcopy16_fault:
+10:	b	.Lcopy_done
+	std,ma	t1,8(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
+#endif
+
+.Lcopy8_fault:
+10:	b	.Lcopy_done
+	stw,ma	t1,4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
+
+	.exit
+ENDPROC_CFI(pa_memcpy)
+	.procend
+
 	.end
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index f82ff10..b3d47ec 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -2,7 +2,7 @@
  *    Optimized memory copy routines.
  *
  *    Copyright (C) 2004 Randolph Chung <tausq@debian.org>
- *    Copyright (C) 2013 Helge Deller <deller@gmx.de>
+ *    Copyright (C) 2013-2017 Helge Deller <deller@gmx.de>
  *
  *    This program is free software; you can redistribute it and/or modify
  *    it under the terms of the GNU General Public License as published by
@@ -21,474 +21,21 @@
  *    Portions derived from the GNU C Library
  *    Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc.
  *
- * Several strategies are tried to try to get the best performance for various
- * conditions. In the optimal case, we copy 64-bytes in an unrolled loop using 
- * fp regs. This is followed by loops that copy 32- or 16-bytes at a time using
- * general registers.  Unaligned copies are handled either by aligning the 
- * destination and then using shift-and-write method, or in a few cases by 
- * falling back to a byte-at-a-time copy.
- *
- * I chose to implement this in C because it is easier to maintain and debug,
- * and in my experiments it appears that the C code generated by gcc (3.3/3.4
- * at the time of writing) is fairly optimal. Unfortunately some of the 
- * semantics of the copy routine (exception handling) is difficult to express
- * in C, so we have to play some tricks to get it to work.
- *
- * All the loads and stores are done via explicit asm() code in order to use
- * the right space registers. 
- * 
- * Testing with various alignments and buffer sizes shows that this code is 
- * often >10x faster than a simple byte-at-a-time copy, even for strangely
- * aligned operands. It is interesting to note that the glibc version
- * of memcpy (written in C) is actually quite fast already. This routine is 
- * able to beat it by 30-40% for aligned copies because of the loop unrolling, 
- * but in some cases the glibc version is still slightly faster. This lends 
- * more credibility that gcc can generate very good code as long as we are 
- * careful.
- *
- * TODO:
- * - cache prefetching needs more experimentation to get optimal settings
- * - try not to use the post-increment address modifiers; they create additional
- *   interlocks
- * - replace byte-copy loops with stybs sequences
  */
 
-#ifdef __KERNEL__
 #include <linux/module.h>
 #include <linux/compiler.h>
 #include <linux/uaccess.h>
-#define s_space "%%sr1"
-#define d_space "%%sr2"
-#else
-#include "memcpy.h"
-#define s_space "%%sr0"
-#define d_space "%%sr0"
-#define pa_memcpy new2_copy
-#endif
 
 DECLARE_PER_CPU(struct exception_data, exception_data);
 
-#define preserve_branch(label)	do {					\
-	volatile int dummy = 0;						\
-	/* The following branch is never taken, it's just here to  */	\
-	/* prevent gcc from optimizing away our exception code. */ 	\
-	if (unlikely(dummy != dummy))					\
-		goto label;						\
-} while (0)
-
 #define get_user_space() (segment_eq(get_fs(), KERNEL_DS) ? 0 : mfsp(3))
 #define get_kernel_space() (0)
 
-#define MERGE(w0, sh_1, w1, sh_2)  ({					\
-	unsigned int _r;						\
-	asm volatile (							\
-	"mtsar %3\n"							\
-	"shrpw %1, %2, %%sar, %0\n"					\
-	: "=r"(_r)							\
-	: "r"(w0), "r"(w1), "r"(sh_2)					\
-	);								\
-	_r;								\
-})
-#define THRESHOLD	16
-
-#ifdef DEBUG_MEMCPY
-#define DPRINTF(fmt, args...) do { printk(KERN_DEBUG "%s:%d:%s ", __FILE__, __LINE__, __func__ ); printk(KERN_DEBUG fmt, ##args ); } while (0)
-#else
-#define DPRINTF(fmt, args...)
-#endif
-
-#define def_load_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e)	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn ",ma " #_sz "(" _s ",%1), %0\n\t"	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: _tt(_t), "+r"(_a)				\
-	: 						\
-	: "r8")
-
-#define def_store_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn ",ma %1, " #_sz "(" _s ",%0)\n\t"	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: "+r"(_a) 					\
-	: _tt(_t)					\
-	: "r8")
-
-#define ldbma(_s, _a, _t, _e) def_load_ai_insn(ldbs,1,"=r",_s,_a,_t,_e)
-#define stbma(_s, _t, _a, _e) def_store_ai_insn(stbs,1,"r",_s,_a,_t,_e)
-#define ldwma(_s, _a, _t, _e) def_load_ai_insn(ldw,4,"=r",_s,_a,_t,_e)
-#define stwma(_s, _t, _a, _e) def_store_ai_insn(stw,4,"r",_s,_a,_t,_e)
-#define flddma(_s, _a, _t, _e) def_load_ai_insn(fldd,8,"=f",_s,_a,_t,_e)
-#define fstdma(_s, _t, _a, _e) def_store_ai_insn(fstd,8,"f",_s,_a,_t,_e)
-
-#define def_load_insn(_insn,_tt,_s,_o,_a,_t,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn " " #_o "(" _s ",%1), %0\n\t"	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: _tt(_t) 					\
-	: "r"(_a)					\
-	: "r8")
-
-#define def_store_insn(_insn,_tt,_s,_t,_o,_a,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn " %0, " #_o "(" _s ",%1)\n\t" 	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: 						\
-	: _tt(_t), "r"(_a)				\
-	: "r8")
-
-#define ldw(_s,_o,_a,_t,_e)	def_load_insn(ldw,"=r",_s,_o,_a,_t,_e)
-#define stw(_s,_t,_o,_a,_e) 	def_store_insn(stw,"r",_s,_t,_o,_a,_e)
-
-#ifdef  CONFIG_PREFETCH
-static inline void prefetch_src(const void *addr)
-{
-	__asm__("ldw 0(" s_space ",%0), %%r0" : : "r" (addr));
-}
-
-static inline void prefetch_dst(const void *addr)
-{
-	__asm__("ldd 0(" d_space ",%0), %%r0" : : "r" (addr));
-}
-#else
-#define prefetch_src(addr) do { } while(0)
-#define prefetch_dst(addr) do { } while(0)
-#endif
-
-#define PA_MEMCPY_OK		0
-#define PA_MEMCPY_LOAD_ERROR	1
-#define PA_MEMCPY_STORE_ERROR	2
-
-/* Copy from a not-aligned src to an aligned dst, using shifts. Handles 4 words
- * per loop.  This code is derived from glibc. 
- */
-static noinline unsigned long copy_dstaligned(unsigned long dst,
-					unsigned long src, unsigned long len)
-{
-	/* gcc complains that a2 and a3 may be uninitialized, but actually
-	 * they cannot be.  Initialize a2/a3 to shut gcc up.
-	 */
-	register unsigned int a0, a1, a2 = 0, a3 = 0;
-	int sh_1, sh_2;
-
-	/* prefetch_src((const void *)src); */
-
-	/* Calculate how to shift a word read at the memory operation
-	   aligned srcp to make it aligned for copy.  */
-	sh_1 = 8 * (src % sizeof(unsigned int));
-	sh_2 = 8 * sizeof(unsigned int) - sh_1;
-
-	/* Make src aligned by rounding it down.  */
-	src &= -sizeof(unsigned int);
-
-	switch (len % 4)
-	{
-		case 2:
-			/* a1 = ((unsigned int *) src)[0];
-			   a2 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a1, cda_ldw_exc);
-			ldw(s_space, 4, src, a2, cda_ldw_exc);
-			src -= 1 * sizeof(unsigned int);
-			dst -= 3 * sizeof(unsigned int);
-			len += 2;
-			goto do1;
-		case 3:
-			/* a0 = ((unsigned int *) src)[0];
-			   a1 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a0, cda_ldw_exc);
-			ldw(s_space, 4, src, a1, cda_ldw_exc);
-			src -= 0 * sizeof(unsigned int);
-			dst -= 2 * sizeof(unsigned int);
-			len += 1;
-			goto do2;
-		case 0:
-			if (len == 0)
-				return PA_MEMCPY_OK;
-			/* a3 = ((unsigned int *) src)[0];
-			   a0 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a3, cda_ldw_exc);
-			ldw(s_space, 4, src, a0, cda_ldw_exc);
-			src -=-1 * sizeof(unsigned int);
-			dst -= 1 * sizeof(unsigned int);
-			len += 0;
-			goto do3;
-		case 1:
-			/* a2 = ((unsigned int *) src)[0];
-			   a3 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a2, cda_ldw_exc);
-			ldw(s_space, 4, src, a3, cda_ldw_exc);
-			src -=-2 * sizeof(unsigned int);
-			dst -= 0 * sizeof(unsigned int);
-			len -= 1;
-			if (len == 0)
-				goto do0;
-			goto do4;			/* No-op.  */
-	}
-
-	do
-	{
-		/* prefetch_src((const void *)(src + 4 * sizeof(unsigned int))); */
-do4:
-		/* a0 = ((unsigned int *) src)[0]; */
-		ldw(s_space, 0, src, a0, cda_ldw_exc);
-		/* ((unsigned int *) dst)[0] = MERGE (a2, sh_1, a3, sh_2); */
-		stw(d_space, MERGE (a2, sh_1, a3, sh_2), 0, dst, cda_stw_exc);
-do3:
-		/* a1 = ((unsigned int *) src)[1]; */
-		ldw(s_space, 4, src, a1, cda_ldw_exc);
-		/* ((unsigned int *) dst)[1] = MERGE (a3, sh_1, a0, sh_2); */
-		stw(d_space, MERGE (a3, sh_1, a0, sh_2), 4, dst, cda_stw_exc);
-do2:
-		/* a2 = ((unsigned int *) src)[2]; */
-		ldw(s_space, 8, src, a2, cda_ldw_exc);
-		/* ((unsigned int *) dst)[2] = MERGE (a0, sh_1, a1, sh_2); */
-		stw(d_space, MERGE (a0, sh_1, a1, sh_2), 8, dst, cda_stw_exc);
-do1:
-		/* a3 = ((unsigned int *) src)[3]; */
-		ldw(s_space, 12, src, a3, cda_ldw_exc);
-		/* ((unsigned int *) dst)[3] = MERGE (a1, sh_1, a2, sh_2); */
-		stw(d_space, MERGE (a1, sh_1, a2, sh_2), 12, dst, cda_stw_exc);
-
-		src += 4 * sizeof(unsigned int);
-		dst += 4 * sizeof(unsigned int);
-		len -= 4;
-	}
-	while (len != 0);
-
-do0:
-	/* ((unsigned int *) dst)[0] = MERGE (a2, sh_1, a3, sh_2); */
-	stw(d_space, MERGE (a2, sh_1, a3, sh_2), 0, dst, cda_stw_exc);
-
-	preserve_branch(handle_load_error);
-	preserve_branch(handle_store_error);
-
-	return PA_MEMCPY_OK;
-
-handle_load_error:
-	__asm__ __volatile__ ("cda_ldw_exc:\n");
-	return PA_MEMCPY_LOAD_ERROR;
-
-handle_store_error:
-	__asm__ __volatile__ ("cda_stw_exc:\n");
-	return PA_MEMCPY_STORE_ERROR;
-}
-
-
-/* Returns PA_MEMCPY_OK, PA_MEMCPY_LOAD_ERROR or PA_MEMCPY_STORE_ERROR.
- * In case of an access fault the faulty address can be read from the per_cpu
- * exception data struct. */
-static noinline unsigned long pa_memcpy_internal(void *dstp, const void *srcp,
-					unsigned long len)
-{
-	register unsigned long src, dst, t1, t2, t3;
-	register unsigned char *pcs, *pcd;
-	register unsigned int *pws, *pwd;
-	register double *pds, *pdd;
-	unsigned long ret;
-
-	src = (unsigned long)srcp;
-	dst = (unsigned long)dstp;
-	pcs = (unsigned char *)srcp;
-	pcd = (unsigned char *)dstp;
-
-	/* prefetch_src((const void *)srcp); */
-
-	if (len < THRESHOLD)
-		goto byte_copy;
-
-	/* Check alignment */
-	t1 = (src ^ dst);
-	if (unlikely(t1 & (sizeof(double)-1)))
-		goto unaligned_copy;
-
-	/* src and dst have same alignment. */
-
-	/* Copy bytes till we are double-aligned. */
-	t2 = src & (sizeof(double) - 1);
-	if (unlikely(t2 != 0)) {
-		t2 = sizeof(double) - t2;
-		while (t2 && len) {
-			/* *pcd++ = *pcs++; */
-			ldbma(s_space, pcs, t3, pmc_load_exc);
-			len--;
-			stbma(d_space, t3, pcd, pmc_store_exc);
-			t2--;
-		}
-	}
-
-	pds = (double *)pcs;
-	pdd = (double *)pcd;
-
-#if 0
-	/* Copy 8 doubles at a time */
-	while (len >= 8*sizeof(double)) {
-		register double r1, r2, r3, r4, r5, r6, r7, r8;
-		/* prefetch_src((char *)pds + L1_CACHE_BYTES); */
-		flddma(s_space, pds, r1, pmc_load_exc);
-		flddma(s_space, pds, r2, pmc_load_exc);
-		flddma(s_space, pds, r3, pmc_load_exc);
-		flddma(s_space, pds, r4, pmc_load_exc);
-		fstdma(d_space, r1, pdd, pmc_store_exc);
-		fstdma(d_space, r2, pdd, pmc_store_exc);
-		fstdma(d_space, r3, pdd, pmc_store_exc);
-		fstdma(d_space, r4, pdd, pmc_store_exc);
-
-#if 0
-		if (L1_CACHE_BYTES <= 32)
-			prefetch_src((char *)pds + L1_CACHE_BYTES);
-#endif
-		flddma(s_space, pds, r5, pmc_load_exc);
-		flddma(s_space, pds, r6, pmc_load_exc);
-		flddma(s_space, pds, r7, pmc_load_exc);
-		flddma(s_space, pds, r8, pmc_load_exc);
-		fstdma(d_space, r5, pdd, pmc_store_exc);
-		fstdma(d_space, r6, pdd, pmc_store_exc);
-		fstdma(d_space, r7, pdd, pmc_store_exc);
-		fstdma(d_space, r8, pdd, pmc_store_exc);
-		len -= 8*sizeof(double);
-	}
-#endif
-
-	pws = (unsigned int *)pds;
-	pwd = (unsigned int *)pdd;
-
-word_copy:
-	while (len >= 8*sizeof(unsigned int)) {
-		register unsigned int r1,r2,r3,r4,r5,r6,r7,r8;
-		/* prefetch_src((char *)pws + L1_CACHE_BYTES); */
-		ldwma(s_space, pws, r1, pmc_load_exc);
-		ldwma(s_space, pws, r2, pmc_load_exc);
-		ldwma(s_space, pws, r3, pmc_load_exc);
-		ldwma(s_space, pws, r4, pmc_load_exc);
-		stwma(d_space, r1, pwd, pmc_store_exc);
-		stwma(d_space, r2, pwd, pmc_store_exc);
-		stwma(d_space, r3, pwd, pmc_store_exc);
-		stwma(d_space, r4, pwd, pmc_store_exc);
-
-		ldwma(s_space, pws, r5, pmc_load_exc);
-		ldwma(s_space, pws, r6, pmc_load_exc);
-		ldwma(s_space, pws, r7, pmc_load_exc);
-		ldwma(s_space, pws, r8, pmc_load_exc);
-		stwma(d_space, r5, pwd, pmc_store_exc);
-		stwma(d_space, r6, pwd, pmc_store_exc);
-		stwma(d_space, r7, pwd, pmc_store_exc);
-		stwma(d_space, r8, pwd, pmc_store_exc);
-		len -= 8*sizeof(unsigned int);
-	}
-
-	while (len >= 4*sizeof(unsigned int)) {
-		register unsigned int r1,r2,r3,r4;
-		ldwma(s_space, pws, r1, pmc_load_exc);
-		ldwma(s_space, pws, r2, pmc_load_exc);
-		ldwma(s_space, pws, r3, pmc_load_exc);
-		ldwma(s_space, pws, r4, pmc_load_exc);
-		stwma(d_space, r1, pwd, pmc_store_exc);
-		stwma(d_space, r2, pwd, pmc_store_exc);
-		stwma(d_space, r3, pwd, pmc_store_exc);
-		stwma(d_space, r4, pwd, pmc_store_exc);
-		len -= 4*sizeof(unsigned int);
-	}
-
-	pcs = (unsigned char *)pws;
-	pcd = (unsigned char *)pwd;
-
-byte_copy:
-	while (len) {
-		/* *pcd++ = *pcs++; */
-		ldbma(s_space, pcs, t3, pmc_load_exc);
-		stbma(d_space, t3, pcd, pmc_store_exc);
-		len--;
-	}
-
-	return PA_MEMCPY_OK;
-
-unaligned_copy:
-	/* possibly we are aligned on a word, but not on a double... */
-	if (likely((t1 & (sizeof(unsigned int)-1)) == 0)) {
-		t2 = src & (sizeof(unsigned int) - 1);
-
-		if (unlikely(t2 != 0)) {
-			t2 = sizeof(unsigned int) - t2;
-			while (t2) {
-				/* *pcd++ = *pcs++; */
-				ldbma(s_space, pcs, t3, pmc_load_exc);
-				stbma(d_space, t3, pcd, pmc_store_exc);
-				len--;
-				t2--;
-			}
-		}
-
-		pws = (unsigned int *)pcs;
-		pwd = (unsigned int *)pcd;
-		goto word_copy;
-	}
-
-	/* Align the destination.  */
-	if (unlikely((dst & (sizeof(unsigned int) - 1)) != 0)) {
-		t2 = sizeof(unsigned int) - (dst & (sizeof(unsigned int) - 1));
-		while (t2) {
-			/* *pcd++ = *pcs++; */
-			ldbma(s_space, pcs, t3, pmc_load_exc);
-			stbma(d_space, t3, pcd, pmc_store_exc);
-			len--;
-			t2--;
-		}
-		dst = (unsigned long)pcd;
-		src = (unsigned long)pcs;
-	}
-
-	ret = copy_dstaligned(dst, src, len / sizeof(unsigned int));
-	if (ret)
-		return ret;
-
-	pcs += (len & -sizeof(unsigned int));
-	pcd += (len & -sizeof(unsigned int));
-	len %= sizeof(unsigned int);
-
-	preserve_branch(handle_load_error);
-	preserve_branch(handle_store_error);
-
-	goto byte_copy;
-
-handle_load_error:
-	__asm__ __volatile__ ("pmc_load_exc:\n");
-	return PA_MEMCPY_LOAD_ERROR;
-
-handle_store_error:
-	__asm__ __volatile__ ("pmc_store_exc:\n");
-	return PA_MEMCPY_STORE_ERROR;
-}
-
-
 /* Returns 0 for success, otherwise, returns number of bytes not transferred. */
-static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
-{
-	unsigned long ret, fault_addr, reference;
-	struct exception_data *d;
-
-	ret = pa_memcpy_internal(dstp, srcp, len);
-	if (likely(ret == PA_MEMCPY_OK))
-		return 0;
-
-	/* if a load or store fault occured we can get the faulty addr */
-	d = this_cpu_ptr(&exception_data);
-	fault_addr = d->fault_addr;
-
-	/* error in load or store? */
-	if (ret == PA_MEMCPY_LOAD_ERROR)
-		reference = (unsigned long) srcp;
-	else
-		reference = (unsigned long) dstp;
+extern unsigned long pa_memcpy(void *dst, const void *src,
+				unsigned long len);
 
-	DPRINTF("pa_memcpy: fault type = %lu, len=%lu fault_addr=%lu ref=%lu\n",
-		ret, len, fault_addr, reference);
-
-	if (fault_addr >= reference)
-		return len - (fault_addr - reference);
-	else
-		return len;
-}
-
-#ifdef __KERNEL__
 unsigned long __copy_to_user(void __user *dst, const void *src,
 			     unsigned long len)
 {
@@ -537,5 +84,3 @@ long probe_kernel_read(void *dst, const void *src, size_t size)
 
 	return __probe_kernel_read(dst, src, size);
 }

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From - Thu Nov 08 21:39:47 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: unshare (CLONE_NEWUTS)
Date: Sat, 1 Apr 2017 12:08:28 -0400
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We don't seem to support unshare (CLONE_NEWUTS):

dave@mx3210:~/unshare$ ./unshare
warning: unshare (CLONE_NEWUTS) failed: Operation not permitted
dave@mx3210:~/unshare$ su
Password: 
mx3210:/home/dave/unshare# ./unshare
warning: unshare (CLONE_NEWUTS) failed: Invalid argument

This appears to cause a couple of glibc tests on trunk to fail.

Dave
--
John David Anglin	dave.anglin@bell.net



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#define _GNU_SOURCE
#include <sched.h>
#include <stdio.h>
#include <unistd.h>
int
main (void)
{
  if (unshare (CLONE_NEWUTS) != 0)
    printf ("warning: unshare (CLONE_NEWUTS) failed: %m\n");
  return 0;
}

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From - Thu Nov 08 21:39:47 2018
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On 01.04.2017 18:08, John David Anglin wrote:
> We don't seem to support unshare (CLONE_NEWUTS):

We do.

> dave@mx3210:~/unshare$ ./unshare
> warning: unshare (CLONE_NEWUTS) failed: Operation not permitted
> dave@mx3210:~/unshare$ su
> Password: 
> mx3210:/home/dave/unshare# ./unshare
> warning: unshare (CLONE_NEWUTS) failed: Invalid argument
> 
> This appears to cause a couple of glibc tests on trunk to fail.

Your kernel needs to be compiled with UTS support.
Testcase works on phantom (debian default kernel).

Helge
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
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Subject: Re: mmap problem in localedef
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Hi,

On Mon, Dec 05, 2016 at 06:50:57PM -0500, John David Anglin wrote:
> On 2016-12-05, at 4:17 PM, John David Anglin wrote:
> > I'll post the current Debian patch set for hppa tonight and maybe we can
> > consolidate.

[...]

> We still have a change to SHMLBA which affects non standard page sizes.

FWIW, this is the one (local-shmlba.diff) that is needed to get localedef
working on PA-RISC. I just tested with glibc 2.25 and Linux 4.10 with 4 KB
page size.

A.
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Subject: Re: mmap problem in localedef
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Aaro Koskinen wrote:
> Hi,
> 
> On Mon, Dec 05, 2016 at 06:50:57PM -0500, John David Anglin wrote:
> > On 2016-12-05, at 4:17 PM, John David Anglin wrote:
> > > I'll post the current Debian patch set for hppa tonight and maybe we can
> > > consolidate.
> 
> [...]
> 
> > We still have a change to SHMLBA which affects non standard page sizes.
> 
> FWIW, this is the one (local-shmlba.diff) that is needed to get localedef
> working on PA-RISC. I just tested with glibc 2.25 and Linux 4.10 with 4 KB
> page size.

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From - Thu Nov 08 21:39:47 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc architecture fixes for 4.11-rc5
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Hi Linus,

Please pull three fixes for the parisc architecture for v4.11-rc5 from
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.11-3

Al Viro reported that - in case of read faults - our copy_from_user()
implementation may claim to have copied more bytes than it actually did. In
order to fix this bug and because of the way how gcc optimizes register usage
for inline assembly in C code, we had to replace our pa_memcpy() function with
a pure assembler implementation.

While fixing the memcpy bug we noticed some other issues with our get_user()
and put_user() functions, e.g. nested faults may return wrong data. This is now
fixed by a common fixup handler for get_user/put_user in the exception handler
which additionally makes generated code smaller and faster.

The third patch is a trivial one-line fix for a patch which went in during
4.11-rc and which avoids stalled CPU warnings after power shutdown (for parisc
machines which can't plug power off themselves).

Due to the rewrite of pa_memcpy() into assembly this patch got bigger than what
I wanted to have sent at this stage.

Those patches have been running in production during the last few days on our
debian build servers without any further issues.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (3):
      parisc: Fix access fault handling in pa_memcpy()
      parisc: Clean up fixup routines for get_user()/put_user()
      parisc: Avoid stalled CPU warnings after system shutdown

 arch/parisc/include/asm/uaccess.h |  59 ++---
 arch/parisc/kernel/parisc_ksyms.c |  10 -
 arch/parisc/kernel/process.c      |   2 +
 arch/parisc/lib/Makefile          |   2 +-
 arch/parisc/lib/fixup.S           |  98 --------
 arch/parisc/lib/lusercopy.S       | 318 ++++++++++++++++++++++++++
 arch/parisc/lib/memcpy.c          | 461 +-------------------------------------
 arch/parisc/mm/fault.c            |  17 ++
 8 files changed, 375 insertions(+), 592 deletions(-)
 delete mode 100644 arch/parisc/lib/fixup.S
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From - Thu Nov 08 21:39:47 2018
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Hi,

On Sat, Apr 01, 2017 at 08:41:05PM +0200, Rolf Eike Beer wrote:
> Aaro Koskinen wrote:
> > On Mon, Dec 05, 2016 at 06:50:57PM -0500, John David Anglin wrote:
> > > On 2016-12-05, at 4:17 PM, John David Anglin wrote:
> > > > I'll post the current Debian patch set for hppa tonight and maybe we can
> > > > consolidate.
> > 
> > [...]
> > 
> > > We still have a change to SHMLBA which affects non standard page sizes.
> > 
> > FWIW, this is the one (local-shmlba.diff) that is needed to get localedef
> > working on PA-RISC. I just tested with glibc 2.25 and Linux 4.10 with 4 KB
> > page size.
> 
> Missing attachment?

It was attached to Dave's original mail. Inlined below:

Index: eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h
===================================================================
--- eglibc-2.18.orig/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2013-01-09 19:28:48.000000000 -0500
+++ eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2014-04-09 21:08:06.516202583 -0400
@@ -36,7 +36,7 @@
 #define SHM_UNLOCK	12		/* unlock segment (root only) */
 
 /* Segment low boundary address multiple.  */
-#define SHMLBA 0x00400000		/* address needs to be 4 Mb aligned */
+#define SHMLBA		(__getpagesize ())
 
 /* Type to count number of attaches.  */
 typedef unsigned long int shmatt_t;

A.
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: mmap problem in localedef
Date: Sat, 1 Apr 2017 15:20:35 -0400
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On 2017-04-01, at 2:37 PM, Aaro Koskinen wrote:

>> We still have a change to SHMLBA which affects non standard page =
sizes.
>=20
> FWIW, this is the one (local-shmlba.diff) that is needed to get =
localedef
> working on PA-RISC. I just tested with glibc 2.25 and Linux 4.10 with =
4 KB
> page size.

I compared the Debian 2.24 patch set for hppa versus my current patch =
set for trunk.  I found that
I was missing a couple of "local" patches including the one mentioned =
above.

Attached is my current patch set.  I'll do another build and check after =
I do a kernel update to add UTS
support.

Dave
--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-37--481356122
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	filename=glibc-20170401.d.txt
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diff --git a/elf/Makefile b/elf/Makefile
index cc4aeb25b6..883dd8f013 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -543,7 +543,7 @@ CFLAGS-ldconfig.c =3D $(SYSCONF-FLAGS) =
-D'LIBDIR=3D"$(libdir)"' \
 libof-ldconfig =3D ldconfig
 CFLAGS-dl-cache.c =3D $(SYSCONF-FLAGS)
 CFLAGS-cache.c =3D $(SYSCONF-FLAGS)
-CFLAGS-rtld.c =3D $(SYSCONF-FLAGS)
+CFLAGS-rtld.c +=3D $(SYSCONF-FLAGS)
=20
 cpp-srcs-left :=3D $(all-rtld-routines:=3D.os)
 lib :=3D rtld
diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c
index e5c5f79a82..085ae07b32 100644
--- a/nptl/allocatestack.c
+++ b/nptl/allocatestack.c
@@ -647,9 +647,13 @@ allocate_stack (const struct pthread_attr *attr, =
struct pthread **pdp,
 			prot) !=3D 0)
 	    goto mprot_error;
 #elif _STACK_GROWS_UP
-	  if (mprotect ((char *) pd - pd->guardsize,
-			pd->guardsize - guardsize, prot) !=3D 0)
-	    goto mprot_error;
+	  char *new_guard =3D (char *) (((uintptr_t) pd - guardsize) & =
~pagesize_m1);
+	  char *old_guard =3D (char *) (((uintptr_t) pd - pd->guardsize) =
& ~pagesize_m1);
+	  /* The guard size difference might be > 0, but once rounded
+	     to the nearest page the size difference might be zero.  */
+	  if (old_guard - new_guard > 0)
+	    if (mprotect (old_guard, new_guard - old_guard, prot) !=3D =
0)
+	      goto mprot_error;
 #endif
=20
 	  pd->guardsize =3D guardsize;
diff --git a/resolv/res_mkquery.c b/resolv/res_mkquery.c
index d80b5318e5..99d7d96027 100644
--- a/resolv/res_mkquery.c
+++ b/resolv/res_mkquery.c
@@ -83,6 +83,15 @@
 # define RANDOM_BITS(Var) { uint64_t v64; HP_TIMING_NOW (v64); Var =3D =
v64; }
 #endif
=20
+/* The structure HEADER is normally aligned to a word boundary and its
+   fields are accessed using word loads and stores.  We need to access
+   this structure when it is aligned on a byte boundary.  This can =
cause
+   problems on machines with strict alignment.  So, we create a new
+   typedef to reduce its alignment to one.  This ensures the fields are
+   accessed with byte loads and stores.  */
+typedef HEADER __attribute__ ((__aligned__(1))) UHEADER;
+#define HEADER UHEADER
+
 /*
  * Form all types of queries.
  * Returns the size of the result or -1.
diff --git a/resolv/res_query.c b/resolv/res_query.c
index 07dc6f6583..9a1a8f90d1 100644
--- a/resolv/res_query.c
+++ b/resolv/res_query.c
@@ -78,6 +78,14 @@
 #include <stdlib.h>
 #include <string.h>
=20
+/* The structure HEADER is normally aligned to a word boundary and its
+   fields are accessed using word loads and stores.  We need to access=20=

+   this structure when it is aligned on a byte boundary.  This can =
cause
+   problems on machines with strict alignment.  So, we create a new
+   typedef to reduce its alignment to one.  This ensures the fields are
+   accessed with byte loads and stores.  */
+typedef HEADER __attribute__ ((__aligned__(1))) UHEADER;
+
 /* Options.  Leave them on. */
 /* #undef DEBUG */
=20
@@ -117,8 +125,8 @@ __libc_res_nquery(res_state statp,
 		  int *resplen2,
 		  int *answerp2_malloced)
 {
-	HEADER *hp =3D (HEADER *) answer;
-	HEADER *hp2;
+	UHEADER *hp =3D (UHEADER *) answer;
+	UHEADER *hp2;
 	int n, use_malloc =3D 0;
 	u_int oflags =3D statp->_flags;
=20
@@ -235,7 +243,7 @@ __libc_res_nquery(res_state statp,
=20
 	if (answerp !=3D NULL)
 	  /* __libc_res_nsend might have reallocated the buffer.  */
-	  hp =3D (HEADER *) *answerp;
+	  hp =3D (UHEADER *) *answerp;
=20
 	/* We simplify the following tests by assigning HP to HP2 or
 	   vice versa.  It is easy to verify that this is the same as
@@ -246,7 +254,7 @@ __libc_res_nquery(res_state statp,
 	  }
 	else
 	  {
-	    hp2 =3D (HEADER *) *answerp2;
+	    hp2 =3D (UHEADER *) *answerp2;
 	    if (n < (int) sizeof (HEADER))
 	      {
 	        hp =3D hp2;
@@ -336,7 +344,7 @@ __libc_res_nsearch(res_state statp,
 		   int *answerp2_malloced)
 {
 	const char *cp, * const *domain;
-	HEADER *hp =3D (HEADER *) answer;
+	UHEADER *hp =3D (UHEADER *) answer;
 	char tmp[NS_MAXDNAME];
 	u_int dots;
 	int trailing_dot, ret, saved_herrno;
diff --git a/resolv/res_send.c b/resolv/res_send.c
index 28c4cabfcb..19f9a86a2b 100644
--- a/resolv/res_send.c
+++ b/resolv/res_send.c
@@ -110,6 +110,15 @@
 #include <kernel-features.h>
 #include <libc-diag.h>
=20
+/* The structure HEADER is normally aligned to a word boundary and its
+   fields are accessed using word loads and stores.  We need to access=20=

+   this structure when it is aligned on a byte boundary.  This can =
cause
+   problems on machines with strict alignment.  So, we create a new
+   typedef to reduce its alignment to one.  This ensures the fields are
+   accessed with byte loads and stores.  */
+typedef HEADER __attribute__ ((__aligned__(1))) UHEADER;
+#define HEADER UHEADER
+
 #if PACKETSZ > 65536
 #define MAXPACKET       PACKETSZ
 #else
diff --git a/sysdeps/hppa/Makefile b/sysdeps/hppa/Makefile
index c0edb99917..64af43b5ff 100644
--- a/sysdeps/hppa/Makefile
+++ b/sysdeps/hppa/Makefile
@@ -23,6 +23,7 @@ LDFLAGS-c_pic.os +=3D -Wl,--unique=3D.text*
=20
 ifeq ($(subdir),elf)
 CFLAGS-rtld.c +=3D -mdisable-fpregs
+CFLAGS-dl-reloc.c +=3D --param inline-unit-growth=3D100
 sysdep-dl-routines +=3D dl-symaddr dl-fptr
 # dl-fptr.c needs a complete rewrite to fix ISO C aliasing violations.
 CFLAGS-dl-fptr.c =3D -Wno-error
diff --git a/sysdeps/hppa/__longjmp.c b/sysdeps/hppa/__longjmp.c
index a7eefc7ad6..438db01473 100644
--- a/sysdeps/hppa/__longjmp.c
+++ b/sysdeps/hppa/__longjmp.c
@@ -24,15 +24,16 @@
 void
 __longjmp (__jmp_buf env, int val)
 {
+#ifdef CHECK_SP
+  CHECK_SP (env[0].__jmp_buf.__sp);
+#endif
+
+  {
   /* We must use one of the non-callee saves registers
      for env.  */
   register unsigned long r26 asm ("r26") =3D (unsigned long)&env[0];
   register unsigned long r25 asm ("r25") =3D (unsigned long)(val =3D=3D =
0 ? 1 : val);
=20
-#ifdef CHECK_SP
-  CHECK_SP (env[0].__jmp_buf.__sp);
-#endif
-
   asm volatile(
 	/* Set return value.  */
 	"copy	%0, %%r28\n\t"
@@ -79,6 +80,8 @@ __longjmp (__jmp_buf env, int val)
 	: /* No outputs.  */
 	: "r" (r25), "r" (r26)
 	: /* No point in clobbers.  */ );
+  }
+
   /* Avoid `volatile function does return' warnings.  */
   for (;;);
 }
diff --git a/sysdeps/hppa/crti.S b/sysdeps/hppa/crti.S
index 7c1470ddf8..0f9bb7b013 100644
--- a/sysdeps/hppa/crti.S
+++ b/sysdeps/hppa/crti.S
@@ -49,6 +49,95 @@
 # define PREINIT_FUNCTION_WEAK 1
 #endif
=20
+#if PREINIT_FUNCTION_WEAK
+	weak_extern (PREINIT_FUNCTION)
+#else
+	.hidden PREINIT_FUNCTION
+#endif
+
+
+/* If we have working .init_array support, we want to keep the .init
+   section empty (apart from the mandatory prologue/epilogue.  This
+   ensures that the default unwind conventions (return-pointer in b0,
+   frame state in ar.pfs, etc.)  will do the Right Thing.  To ensure
+   an empty .init section, we register gmon_initializer() via the
+   .init_array.
+
+    --davidm 02/10/29 */
+
+#if PREINIT_FUNCTION_WEAK
+/* This blob of assembly code is one simple C function:
+
+static void
+__attribute__ ((used))
+gmon_initializer (void)
+{
+  extern void weak_function __gmon_start__ (void);
+
+  if (__gmon_start__)
+    (*__gmon_start__)();
+}
+
+In a final executable, PLABEL32 relocations for function pointers are
+resolved at link time.  Typically, binutils/ld resolves __gmon_start__
+using an external shared library.  __gmon_start__ is always called if
+it is found at link time.  If __gmon_start__ is not found at runtime
+due to a library update, then the function pointer will point at a null
+function descriptor and calling it will cause a segmentation fault.
+So, we call __canonicalize_funcptr_for_compare to obtain the =
canonicalized
+address of __gmon_start__ and skip calling __gmon_start__ if it is =
zero.
+
+ */
+	.type __canonicalize_funcptr_for_compare,@function
+	.type $$dyncall,@function
+
+	.section .data.rel.ro,"aw",@progbits
+	.align 4
+.LC0:
+	.type __gmon_start__,@function
+	.word P%__gmon_start__
+
+	.text
+	.align 4
+	.type gmon_initializer,@function
+gmon_initializer:
+	.PROC
+	.CALLINFO FRAME=3D64,CALLS,SAVE_RP,ENTRY_GR=3D4
+	.ENTRY
+	stw %r2,-20(%r30)
+	stwm %r4,64(%r30)
+	stw %r3,-60(%r30)
+	addil LT'.LC0,%r19
+	ldw RT'.LC0(%r1),%r28
+	ldw 0(%r28),%r3
+	comib,=3D 0,%r3,1f
+	copy %r19,%r4
+	stw %r19,-32(%r30)
+	bl __canonicalize_funcptr_for_compare,%r2
+	copy %r3,%r26
+	comib,=3D 0,%r28,1f
+	copy %r4,%r19
+	copy %r3,%r22
+	.CALL ARGW0=3DGR
+	bl $$dyncall,%r31
+	copy %r31,%r2
+1:
+	ldw -84(%r30),%r2
+	ldw -60(%r30),%r3
+	bv %r0(%r2)
+	ldwm -64(%r30),%r4
+	.EXIT
+	.PROCEND
+	.size gmon_initializer, .-gmon_initializer
+
+# undef PREINIT_FUNCTION
+# define PREINIT_FUNCTION gmon_initializer
+#endif
+
+	.section .init_array, "aw"
+	.word P% PREINIT_FUNCTION
+
+
 /* _init prologue.  */
 	.section .init, "ax", %progbits
 	.align 4
@@ -58,14 +147,6 @@ _init:
 	stw	%rp,-20(%sp)
 	stwm	%r4,64(%sp)
 	stw	%r19,-32(%sp)
-#if PREINIT_FUNCTION_WEAK
-	bl	PREINIT_FUNCTION,%rp
-	copy	%r19,%r4	/* delay slot */
-#else
-	bl	PREINIT_FUNCTION,%rp
-	copy	%r19,%r4	/* delay slot */
-#endif
-	copy	%r4,%r19
=20
 /* _fini prologue.  */
         .section .fini,"ax",%progbits
diff --git a/sysdeps/hppa/crtn.S b/sysdeps/hppa/crtn.S
index 42f310d217..49666b81f9 100644
--- a/sysdeps/hppa/crtn.S
+++ b/sysdeps/hppa/crtn.S
@@ -38,27 +38,6 @@
 /* crtn.S puts function epilogues in the .init and .fini sections
    corresponding to the prologues in crti.S. */
=20
-/* Note that we cannot have a weak undefined __gmon_start__, because
-   that would require this to be PIC, and the linker is currently not
-   able to generate a proper procedure descriptor for _init.  Sad but
-   true.  Anyway, HPPA is one of those horrible architectures where
-   making the comparison and indirect call is quite expensive (see the
-   comment in sysdeps/generic/initfini.c). */
-        .text
-        .align 4
-        .weak   __gmon_start__
-        .type    __gmon_start__,@function
-__gmon_start__:
-	.proc
-	.callinfo
-	.entry
-        bv,n %r0(%r2)
-	.exit
-	.procend
-
-/* Here is the tail end of _init.  We put __gmon_start before this so
-   that the assembler creates the .PARISC.unwind section for us, ie.
-   with the right attributes.  */
 	.section .init, "ax", @progbits
 	ldw	-84(%sp),%rp
 	copy	%r4,%r19
diff --git a/sysdeps/hppa/dl-fptr.c b/sysdeps/hppa/dl-fptr.c
index 83bdb91202..4c0a4b0bd5 100644
--- a/sysdeps/hppa/dl-fptr.c
+++ b/sysdeps/hppa/dl-fptr.c
@@ -28,6 +28,7 @@
 #include <dl-fptr.h>
 #include <dl-unmap-segments.h>
 #include <atomic.h>
+#include <libc-internal.h>
=20
 #ifndef ELF_MACHINE_BOOT_FPTR_TABLE_LEN
 /* ELF_MACHINE_BOOT_FPTR_TABLE_LEN should be greater than the number of
@@ -181,24 +182,29 @@ make_fdesc (ElfW(Addr) ip, ElfW(Addr) gp)
 static inline ElfW(Addr) * __attribute__ ((always_inline))
 make_fptr_table (struct link_map *map)
 {
-  const ElfW(Sym) *symtab
-    =3D (const void *) D_PTR (map, l_info[DT_SYMTAB]);
+  const ElfW(Sym) *symtab =3D (const void *) D_PTR (map, =
l_info[DT_SYMTAB]);
   const char *strtab =3D (const void *) D_PTR (map, l_info[DT_STRTAB]);
   ElfW(Addr) *fptr_table;
   size_t size;
   size_t len;
+  const ElfW(Sym) *symtabend;
=20
-  /* XXX Apparently the only way to find out the size of the dynamic
-     symbol section is to assume that the string table follows right
-     afterwards...  */
-  len =3D ((strtab - (char *) symtab)
+  /* Determine the end of the dynamic symbol table using the hash.  */
+  if (map->l_info[DT_HASH] !=3D NULL)
+    symtabend =3D (symtab + ((Elf_Symndx *) D_PTR (map, =
l_info[DT_HASH]))[1]);
+  else
+  /* There is no direct way to determine the number of symbols in the
+     dynamic symbol table and no hash table is present.  The ELF
+     binary is ill-formed but what shall we do?  Use the beginning of
+     the string table which generally follows the symbol table.  */
+    symtabend =3D (const ElfW(Sym) *) strtab;
+
+  len =3D (((char *) symtabend - (char *) symtab)
 	 / map->l_info[DT_SYMENT]->d_un.d_val);
-  size =3D ((len * sizeof (fptr_table[0]) + GLRO(dl_pagesize) - 1)
-	  & -GLRO(dl_pagesize));
-  /* XXX We don't support here in the moment systems without MAP_ANON.
-     There probably are none for IA-64.  In case this is proven wrong
-     we will have to open /dev/null here and use the file descriptor
-     instead of the hard-coded -1.  */
+  size =3D ALIGN_UP (len * sizeof (fptr_table[0]), GLRO(dl_pagesize));
+
+  /* We don't support systems without MAP_ANON.  We avoid using malloc
+     because this might get called before malloc is setup.  */
   fptr_table =3D __mmap (NULL, size,
 		       PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
 		       -1, 0);
@@ -331,22 +337,45 @@ elf_machine_resolve (void)
   return addr;
 }
=20
+static inline int
+_dl_read_access_allowed (unsigned int *addr)
+{
+  int result;
+
+  asm ("proberi	(%1),3,%0" : "=3Dr" (result) : "r" (addr) : );
+
+  return result;
+}
+
 ElfW(Addr)
 _dl_lookup_address (const void *address)
 {
   ElfW(Addr) addr =3D (ElfW(Addr)) address;
   unsigned int *desc, *gptr;
=20
-  /* Check for special cases.  */
-  if ((int) addr =3D=3D -1
-      || (unsigned int) addr < 4096
-      || !((unsigned int) addr & 2))
+  /* Return ADDR if the least-significant two bits of ADDR are not =
consistent
+     with ADDR being a linker defined function pointer.  The normal =
value for
+     a code address in a backtrace is 3.  */
+  if (((unsigned int) addr & 3) !=3D 2)
+    return addr;
+
+  /* Handle special case where ADDR points to page 0.  */
+  if ((unsigned int) addr < 4096)
     return addr;
=20
   /* Clear least-significant two bits from descriptor address.  */
   desc =3D (unsigned int *) ((unsigned int) addr & ~3);
+  if (!_dl_read_access_allowed (desc))
+    return addr;
=20
-  /* Check if descriptor requires resolution.  The following trampoline =
is
+  /* Load first word of candidate descriptor.  It should be a pointer
+     with word alignment and point to memory that can be read.  */
+  gptr =3D (unsigned int *) desc[0];
+  if (((unsigned int) gptr & 3) !=3D 0
+      || !_dl_read_access_allowed (gptr))
+    return addr;
+
+  /* See if descriptor requires resolution.  The following trampoline =
is
      used in each global offset table for function resolution:
=20
 		ldw 0(r20),r22
@@ -358,7 +387,6 @@ _dl_lookup_address (const void *address)
 		.word "_dl_runtime_resolve ltp"
      got:	.word _DYNAMIC
 		.word "struct link map address" */
-  gptr =3D (unsigned int *) desc[0];
   if (gptr[0] =3D=3D 0xea9f1fdd			/* b,l .-12,r20  =
   */
       && gptr[1] =3D=3D 0xd6801c1e			/* depwi =
0,31,2,r20 */
       && (ElfW(Addr)) gptr[2] =3D=3D elf_machine_resolve ())
diff --git a/sysdeps/hppa/dl-trampoline.S b/sysdeps/hppa/dl-trampoline.S
index 856339bffe..f1294a931f 100644
--- a/sysdeps/hppa/dl-trampoline.S
+++ b/sysdeps/hppa/dl-trampoline.S
@@ -82,6 +82,11 @@ _dl_runtime_resolve:
 	bl	_dl_fixup,%rp
 	copy	%r21,%r19		/* set fixup func ltp */
=20
+	/* Sometimes a final executable may attempt to call an undefined
+	   weak function (e.g., __gmon_start__).  Return if the function
+	   was not resolved by _dl_fixup */
+	comib,=3D	0,%r28,1f
+
 	/* Load up the returned func descriptor */
 	copy	%r28, %r22
 	copy	%r29, %r19
@@ -107,6 +112,13 @@ _dl_runtime_resolve:
 	/* Jump to new function, but return to previous function */
 	bv	%r0(%r22)
 	ldw	-20(%sp),%rp
+
+1:
+	/* Return to previous function */
+	ldw	-148(%sp),%rp
+	bv	%r0(%rp)
+	ldo	-128(%sp),%sp
+
         .EXIT
         .PROCEND
 	cfi_endproc
diff --git a/sysdeps/hppa/nptl/bits/pthreadtypes.h =
b/sysdeps/hppa/nptl/bits/pthreadtypes.h
index e37111a2f3..4f742bfaa6 100644
--- a/sysdeps/hppa/nptl/bits/pthreadtypes.h
+++ b/sysdeps/hppa/nptl/bits/pthreadtypes.h
@@ -103,39 +103,32 @@ typedef union
   long int __align;
 } pthread_mutexattr_t;
=20
-
-/* Data structure for conditional variable handling.  The structure of
-   the attribute type is not exposed on purpose. However, this =
structure
-   is exposed via PTHREAD_COND_INITIALIZER, and because of this, the
-   Linuxthreads version sets the first four ints to one. In the NPTL
-   version we must check, in every function using pthread_cond_t,
-   for the static Linuxthreads initializer and clear the appropriate
-   words. */
+/* Data structure for conditional variable handling. */
 typedef union
 {
   struct
   {
-    /* In the old Linuxthreads pthread_cond_t, this is the
-       start of the 4-word lock structure, the next four words
-       are set all to 1 by the Linuxthreads
-       PTHREAD_COND_INITIALIZER.  */
-    int __lock __attribute__ ((__aligned__(16)));
-    /* Tracks the initialization of this structure:
-       0  initialized with NPTL PTHREAD_COND_INITIALIZER.
-       1  initialized with Linuxthreads PTHREAD_COND_INITIALIZER.
-       2  initialization in progress.  */
-    int __initializer;
-    unsigned int __futex;
-    void *__mutex;
-    /* In the old Linuxthreads this would have been the start
-       of the pthread_fastlock status word.  */
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-    /* The NPTL pthread_cond_t is exactly the same size as
-       the Linuxthreads version, there are no words to spare.  */
+    __extension__ union
+    {
+      __extension__ unsigned long long int __wseq;
+      struct {
+	unsigned int __low;
+	unsigned int __high;
+      } __wseq32;
+    } __attribute__ ((__aligned__(16)));
+    __extension__ union
+    {
+      __extension__ unsigned long long int __g1_start;
+      struct {
+	unsigned int __low;
+        unsigned int __high;
+      } __g1_start32;
+    };
+    unsigned int __g_refs[2];
+    unsigned int __g_size[2];
+    unsigned int __g1_orig_size;
+    unsigned int __wrefs;
+    unsigned int __g_signals[2];
   } __data;
   char __size[__SIZEOF_PTHREAD_COND_T];
   __extension__ long long int __align;
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/shm.h =
b/sysdeps/unix/sysv/linux/hppa/bits/shm.h
index 794f0ab2da..52632d0dea 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/shm.h
@@ -37,7 +37,7 @@
 #define SHM_UNLOCK	12		/* unlock segment (root only) */
=20
 /* Segment low boundary address multiple.  */
-#define SHMLBA 0x00400000		/* address needs to be 4 Mb =
aligned */
+#define SHMLBA		(__getpagesize ())
=20
 /* Type to count number of attaches.  */
 typedef unsigned long int shmatt_t;
diff --git a/sysdeps/unix/sysv/linux/hppa/clone.S =
b/sysdeps/unix/sysv/linux/hppa/clone.S
index d36b302199..46ee6972d3 100644
--- a/sysdeps/unix/sysv/linux/hppa/clone.S
+++ b/sysdeps/unix/sysv/linux/hppa/clone.S
@@ -64,9 +64,12 @@
 ENTRY(__clone)
 	/* Prologue */
 	stwm	%r4, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 4, 0
 	stw	%sp, -4(%sp)
 #ifdef PIC
 	stw	%r19, -32(%sp)
+	.cfi_offset 19, 32
 #endif
=20
 	/* Sanity check arguments.  */
diff --git a/sysdeps/unix/sysv/linux/hppa/getcontext.S =
b/sysdeps/unix/sysv/linux/hppa/getcontext.S
index 6f52f2149d..68a74a0b7e 100644
--- a/sysdeps/unix/sysv/linux/hppa/getcontext.S
+++ b/sysdeps/unix/sysv/linux/hppa/getcontext.S
@@ -130,8 +130,11 @@ ENTRY(__getcontext)
=20
 	/* Prologue */
 	stwm	%r4, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 4, 0
 #ifdef PIC
 	stw	%r19, -32(%sp)
+	.cfi_offset 19, 32
 #endif
=20
 	/* Set up the trampoline registers.
@@ -156,7 +159,7 @@ ENTRY(__getcontext)
 	/* Epilogue */
 	ldw	-84(%sp), %r2
 #ifdef PIC
-	ldw	-96(%sp), %r19
+	ldw	-32(%sp), %r19
 #endif
 	bv	%r0(%r2)
 	ldwm	-64(%sp), %r4
diff --git a/sysdeps/unix/sysv/linux/hppa/internaltypes.h =
b/sysdeps/unix/sysv/linux/hppa/internaltypes.h
deleted file mode 100644
index d6496579da..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/internaltypes.h
+++ /dev/null
@@ -1,84 +0,0 @@
-#include_next <internaltypes.h>
-#ifndef _INTERNAL_TYPES_H_HPPA_
-#define _INTERNAL_TYPES_H_HPPA_ 1
-#include <atomic.h>
-
-/* In GLIBC 2.10 HPPA switched from Linuxthreads to NPTL, and in order
-to maintain ABI compatibility with pthread_cond_t, some care had to be
-taken.
-
-The NPTL pthread_cond_t grew in size. When HPPA switched to NPTL, we
-dropped the use of ldcw, and switched to the kernel helper routine for
-compare-and-swap.  This allowed HPPA to use the 4-word 16-byte aligned
-lock words, and alignment words to store the additional pthread_cond_t
-data. Once organized properly the new NPTL pthread_cond_t was 1 word
-smaller than the Linuxthreads version.
-
-However, we were faced with the case that users may have initialized =
the
-pthread_cond_t with PTHREAD_COND_INITIALIZER. In this case, the first
-four words were set to one, and must be cleared before any NPTL code
-used these words.
-
-We didn't want to use LDCW, because it continues to be a source of bugs
-when applications memset pthread_cond_t to all zeroes by accident. This
-works on all other architectures where lock words are unlocked at zero.
-Remember that because of the semantics of LDCW, a locked word is set to
-zero, and an unlocked word is set to 1.
-
-Instead we used atomic_compare_and_exchange_val_acq, but we couldn't =
use
-this on any of the pthread_cond_t words, otherwise it might interfere
-with the current operation of the structure. To solve this problem we
-used the left over word.
-
-If the stucture was initialized by a legacy Linuxthread
-PTHREAD_COND_INITIALIZER it contained a 1, and this indicates that the
-structure requires zeroing for NPTL. The first thread to come upon a
-pthread_cond_t with a 1 in the __initializer field, will
-compare-and-swap the value, placing a 2 there which will cause all =
other
-threads using the same pthread_cond_t to wait for the completion of the
-initialization. Lastly, we use a store (with memory barrier) to change
-__initializer from 2 to 0. Note that the store is strongly ordered, but
-we use the PA 1.1 compatible form which is ",ma" with zero offset.
-
-In the future, when the application is recompiled with NPTL
-PTHREAD_COND_INITIALIZER it will be a quick compare-and-swap, which
-fails because __initializer is zero, and the structure will be used as
-is correctly.  */
-
-#define cond_compat_clear(var) \
-({									=
\
-  int tmp =3D 0;								=
\
-  var->__data.__wseq =3D 0;						=
\
-  var->__data.__signals_sent =3D 0;					=
\
-  var->__data.__confirmed =3D 0;						=
\
-  var->__data.__generation =3D 0;						=
\
-  var->__data.__mutex =3D NULL;						=
\
-  var->__data.__quiescence_waiters =3D 0;					=
\
-  var->__data.__clockid =3D 0;						=
\
-  /* Clear __initializer last, to indicate initialization is done.  */	=
\
-  /* This synchronizes-with the acquire load below.  */			=
\
-  atomic_store_release (&var->__data.__initializer, 0);			=
\
-})
-
-#define cond_compat_check_and_clear(var) \
-({								\
-  int v;							\
-  int *value =3D &var->__data.__initializer;			\
-  /* This synchronizes-with the release store above.  */	\
-  while ((v =3D atomic_load_acquire (value)) !=3D 0)		\
-    {								\
-      if (v =3D=3D 1						\
-	  /* Relaxed MO is fine; it only matters who's first.  */        =
\
-	  && atomic_compare_exchange_acquire_weak_relaxed (value, 1, 2)) =
\
-	{							\
-	  /* We're first; initialize structure.  */		\
-	  cond_compat_clear (var);				\
-	  break;						\
-	}							\
-      else							\
-	/* Yield before we re-check initialization status.  */	\
-	sched_yield ();						\
-    }								\
-})
-
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pt-vfork.S =
b/sysdeps/unix/sysv/linux/hppa/pt-vfork.S
index fc4573c86b..8b7d7df2fe 100644
--- a/sysdeps/unix/sysv/linux/hppa/pt-vfork.S
+++ b/sysdeps/unix/sysv/linux/hppa/pt-vfork.S
@@ -58,7 +58,10 @@ ENTRY(__vfork)
 	   that there is no child now, so it's safe to create
 	   a frame.  */
 	stw	%rp, -20(%sp)
+	.cfi_offset 2, -20
 	stwm	%r3, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 3, 0
 	stw	%sp, -4(%sp)
=20
 	sub	%r0,%ret0,%r3
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread.h =
b/sysdeps/unix/sysv/linux/hppa/pthread.h
index ac617201d2..d3b960edd4 100644
--- a/sysdeps/unix/sysv/linux/hppa/pthread.h
+++ b/sysdeps/unix/sysv/linux/hppa/pthread.h
@@ -185,7 +185,7 @@ enum
=20
=20
 /* Conditional variable handling.  */
-#define PTHREAD_COND_INITIALIZER { { 0, 0, 0, 0, 0, (void *) 0, 0, 0 } =
}
+#define PTHREAD_COND_INITIALIZER { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, =
{0, 0} } }
=20
=20
 /* Cleanup buffers */
@@ -1165,12 +1165,6 @@ __END_DECLS
 #ifndef _PTHREAD_H_HPPA_
 #define _PTHREAD_H_HPPA_ 1
=20
-/* The pthread_cond_t initializer is compatible only with NPTL. We do =
not
-   want to be forwards compatible, we eventually want to drop the code
-   that has to clear the old LT initializer.  */
-#undef PTHREAD_COND_INITIALIZER
-#define PTHREAD_COND_INITIALIZER { { 0, 0, 0, (void *) 0, 0, 0, 0, 0, 0 =
} }
-
 /* The pthread_mutex_t and pthread_rwlock_t initializers are compatible
    only with NPTL. NPTL assumes pthread_rwlock_t is all zero.  */
 #undef PTHREAD_MUTEX_INITIALIZER
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c
deleted file mode 100644
index a6f9f5d433..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_broadcast.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_broadcast (pthread_cond_t *cond)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_broadcast_internal (cond);
-}
-versioned_symbol (libpthread, __pthread_cond_broadcast, =
pthread_cond_broadcast,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_broadcast
-# define __pthread_cond_broadcast __pthread_cond_broadcast_internal
-# include_next <pthread_cond_broadcast.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c
deleted file mode 100644
index 49af087bb4..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_destroy.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_destroy (pthread_cond_t *cond)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_destroy_internal (cond);
-}
-versioned_symbol (libpthread, __pthread_cond_destroy, =
pthread_cond_destroy,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_destroy
-# define __pthread_cond_destroy __pthread_cond_destroy_internal
-# include_next <pthread_cond_destroy.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c
deleted file mode 100644
index ccb3de07ff..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_init.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_init (pthread_cond_t *cond, const pthread_condattr_t =
*cond_attr)
-{
-  cond_compat_clear (cond);
-  return __pthread_cond_init_internal (cond, cond_attr);
-}
-versioned_symbol (libpthread, __pthread_cond_init, pthread_cond_init,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_init
-# define __pthread_cond_init __pthread_cond_init_internal
-# include_next <pthread_cond_init.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c
deleted file mode 100644
index 2bf32af933..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_signal.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_signal (pthread_cond_t *cond)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_signal_internal (cond);
-}
-versioned_symbol (libpthread, __pthread_cond_signal, =
pthread_cond_signal,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_signal
-# define __pthread_cond_signal __pthread_cond_signal_internal
-# include_next <pthread_cond_signal.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c
deleted file mode 100644
index 1cc2fc15d4..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_wait.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_wait_internal (cond, mutex);
-}
-versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait,
-                  GLIBC_2_3_2);
-int
-__pthread_cond_timedwait (cond, mutex, abstime)
-     pthread_cond_t *cond;
-     pthread_mutex_t *mutex;
-     const struct timespec *abstime;
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_timedwait_internal (cond, mutex, abstime);
-}
-versioned_symbol (libpthread, __pthread_cond_timedwait, =
pthread_cond_timedwait,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_wait
-# define __pthread_cond_wait __pthread_cond_wait_internal
-# undef __pthread_cond_timedwait
-# define __pthread_cond_timedwait __pthread_cond_timedwait_internal
-# include_next <pthread_cond_wait.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/setcontext.S =
b/sysdeps/unix/sysv/linux/hppa/setcontext.S
index 3f4da7938f..92cb204f8d 100644
--- a/sysdeps/unix/sysv/linux/hppa/setcontext.S
+++ b/sysdeps/unix/sysv/linux/hppa/setcontext.S
@@ -26,8 +26,11 @@
 ENTRY(__setcontext)
 	/* Prologue */
 	stwm	%r3, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 3, 0
 #ifdef PIC
 	stw	%r19, -32(%sp)
+	.cfi_offset 19, 32
 #endif
=20
 	/* Save ucp.  */
@@ -141,7 +144,7 @@ ENTRY(__setcontext)
=20
 	/* No further context available. Exit now.  */
 	bl	HIDDEN_JUMPTARGET(exit), %r2
-	ldi	-1, %r26
+	ldi	0, %r26
=20
=20
 .Lerror:
diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h =
b/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
index 5ea297267f..8b7f2b2095 100644
--- a/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
+++ b/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
@@ -62,12 +62,11 @@
 	ENTRY (__##syscall_name##_nocancel)				=
\
 	DOARGS_##args					ASM_LINE_SEP	=
\
 	stwm TREG, 64(%sp)				ASM_LINE_SEP	=
\
+	.cfi_def_cfa_offset -64				ASM_LINE_SEP	=
\
 	.cfi_offset TREG, 0				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	=
\
 	stw %sp, -4(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 30, -4				ASM_LINE_SEP	=
\
 	stw %r19, -32(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 19, -32				ASM_LINE_SEP	=
\
+	.cfi_offset 19, 32				ASM_LINE_SEP	=
\
 	/* Save r19 */					ASM_LINE_SEP	=
\
 	SAVE_PIC(TREG)					ASM_LINE_SEP	=
\
 	/* Do syscall, delay loads # */			ASM_LINE_SEP	=
\
@@ -91,21 +90,19 @@ L(pre_nc_end):						=
ASM_LINE_SEP	\
 	/* No need to LOAD_PIC */			ASM_LINE_SEP	=
\
 	/* Undo frame */				ASM_LINE_SEP	=
\
 	ldwm -64(%sp),TREG				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	=
\
 	/* Restore rp before exit */			ASM_LINE_SEP	=
\
 	ldw -20(%sp), %rp				ASM_LINE_SEP	=
\
-	.cfi_restore 2					ASM_LINE_SEP	=
\
 	ret						ASM_LINE_SEP	=
\
 	END(__##syscall_name##_nocancel)		ASM_LINE_SEP	=
\
 	/**********************************************/ASM_LINE_SEP	=
\
 	ENTRY (name)							=
\
 	DOARGS_##args					ASM_LINE_SEP	=
\
 	stwm TREG, 64(%sp)				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	=
\
+	.cfi_def_cfa_offset -64				ASM_LINE_SEP	=
\
+	.cfi_offset TREG, 0				ASM_LINE_SEP	=
\
 	stw %sp, -4(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 30, -4				ASM_LINE_SEP	=
\
 	stw %r19, -32(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 19, -32				ASM_LINE_SEP	=
\
+	.cfi_offset 19, 32				ASM_LINE_SEP	=
\
 	/* Done setting up frame, continue... */	ASM_LINE_SEP	=
\
 	SINGLE_THREAD_P					ASM_LINE_SEP	=
\
 	cmpib,<>,n 0,%ret0,L(pseudo_cancel)		ASM_LINE_SEP	=
\
@@ -168,40 +165,32 @@ L(pre_end):						=
ASM_LINE_SEP	\
 	/* No need to LOAD_PIC */			ASM_LINE_SEP	=
\
 	/* Undo frame */				ASM_LINE_SEP	=
\
 	ldwm -64(%sp),TREG				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	=
\
 	/* Restore rp before exit */			ASM_LINE_SEP	=
\
-	ldw -20(%sp), %rp				ASM_LINE_SEP	=
\
-	.cfi_restore 2					ASM_LINE_SEP
+	ldw -20(%sp), %rp				ASM_LINE_SEP
=20
 /* Save arguments into our frame */
 # define PUSHARGS_0	/* nothing to do */
 # define PUSHARGS_1	PUSHARGS_0 stw %r26, -36(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 26, -36			=
ASM_LINE_SEP
+			.cfi_offset 26, 28			=
ASM_LINE_SEP
 # define PUSHARGS_2	PUSHARGS_1 stw %r25, -40(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 25, -40			=
ASM_LINE_SEP
+			.cfi_offset 25, 24			=
ASM_LINE_SEP
 # define PUSHARGS_3	PUSHARGS_2 stw %r24, -44(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 24, -44			=
ASM_LINE_SEP
+			.cfi_offset 24, 20			=
ASM_LINE_SEP
 # define PUSHARGS_4	PUSHARGS_3 stw %r23, -48(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 23, -48			=
ASM_LINE_SEP
+			.cfi_offset 23, 16			=
ASM_LINE_SEP
 # define PUSHARGS_5	PUSHARGS_4 stw %r22, -52(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 22, -52			=
ASM_LINE_SEP
+			.cfi_offset 22, 12			=
ASM_LINE_SEP
 # define PUSHARGS_6	PUSHARGS_5 stw %r21, -56(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 21, -56			=
ASM_LINE_SEP
+			.cfi_offset 21, 8			=
ASM_LINE_SEP
=20
 /* Bring them back from the stack */
 # define POPARGS_0	/* nothing to do */
-# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	=
ASM_LINE_SEP	\
-			.cfi_restore 26				=
ASM_LINE_SEP
-# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	=
ASM_LINE_SEP	\
-			.cfi_restore 25				=
ASM_LINE_SEP
-# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	=
ASM_LINE_SEP	\
-			.cfi_restore 24				=
ASM_LINE_SEP
-# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	=
ASM_LINE_SEP	\
-			.cfi_restore 23				=
ASM_LINE_SEP
-# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	=
ASM_LINE_SEP	\
-			.cfi_restore 22				=
ASM_LINE_SEP
-# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	=
ASM_LINE_SEP	\
-			.cfi_restore 21				=
ASM_LINE_SEP
+# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	=
ASM_LINE_SEP
+# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	=
ASM_LINE_SEP
+# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	=
ASM_LINE_SEP
+# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	=
ASM_LINE_SEP
+# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	=
ASM_LINE_SEP
+# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	=
ASM_LINE_SEP
=20
 # if IS_IN (libpthread)
 #  ifdef PIC
diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep.h =
b/sysdeps/unix/sysv/linux/hppa/sysdep.h
index d8dd0431a4..c0cd59e9f5 100644
--- a/sysdeps/unix/sysv/linux/hppa/sysdep.h
+++ b/sysdeps/unix/sysv/linux/hppa/sysdep.h
@@ -49,11 +49,9 @@
    to another function */
 #define TREG 4
 #define SAVE_PIC(SREG) \
-	copy %r19, SREG ASM_LINE_SEP	\
-	.cfi_register 19, SREG
+	copy %r19, SREG
 #define LOAD_PIC(LREG) \
-	copy LREG , %r19 ASM_LINE_SEP	\
-	.cfi_restore 19
+	copy LREG , %r19
 /* Inline assembly defines */
 #define TREG_ASM "%r4" /* Cant clobber r3, it holds framemarker */
 #define SAVE_ASM_PIC	"       copy %%r19, %" TREG_ASM "\n"
@@ -292,12 +290,11 @@
 #define DO_CALL(syscall_name, args)				\
 	/* Create a frame */			ASM_LINE_SEP	\
 	stwm TREG, 64(%sp)			ASM_LINE_SEP	\
+	.cfi_def_cfa_offset -64			ASM_LINE_SEP	\
 	.cfi_offset TREG, 0			ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset 64		ASM_LINE_SEP	\
 	stw %sp, -4(%sp)			ASM_LINE_SEP	\
-	.cfi_offset 30, -4			ASM_LINE_SEP	\
 	stw %r19, -32(%sp)			ASM_LINE_SEP	\
-	.cfi_offset 19, -32			ASM_LINE_SEP	\
+	.cfi_offset 19, 32			ASM_LINE_SEP	\
 	/* Save r19 */				ASM_LINE_SEP	\
 	SAVE_PIC(TREG)				ASM_LINE_SEP	\
 	/* Do syscall, delay loads # */		ASM_LINE_SEP	\
@@ -320,10 +317,8 @@
 L(pre_end):					ASM_LINE_SEP	\
 	/* Restore our frame, restoring TREG */	ASM_LINE_SEP	\
 	ldwm -64(%sp), TREG			ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset -64		ASM_LINE_SEP	\
 	/* Restore return pointer */		ASM_LINE_SEP	\
-	ldw -20(%sp),%rp			ASM_LINE_SEP	\
-	.cfi_restore 2				ASM_LINE_SEP
+	ldw -20(%sp),%rp			ASM_LINE_SEP
=20
 /* We do nothing with the return, except hand it back to someone else =
*/
 #undef  DO_CALL_NOERRNO

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From - Thu Nov 08 21:39:47 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: mmap problem in localedef
Date: Sun, 2 Apr 2017 10:08:59 -0400
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On 2017-04-01, at 3:10 PM, Aaro Koskinen wrote:

> Hi,
> 
> On Sat, Apr 01, 2017 at 08:41:05PM +0200, Rolf Eike Beer wrote:
>> Aaro Koskinen wrote:
>>> On Mon, Dec 05, 2016 at 06:50:57PM -0500, John David Anglin wrote:
>>>> On 2016-12-05, at 4:17 PM, John David Anglin wrote:
>>>>> I'll post the current Debian patch set for hppa tonight and maybe we can
>>>>> consolidate.
>>> 
>>> [...]
>>> 
>>>> We still have a change to SHMLBA which affects non standard page sizes.
>>> 
>>> FWIW, this is the one (local-shmlba.diff) that is needed to get localedef
>>> working on PA-RISC. I just tested with glibc 2.25 and Linux 4.10 with 4 KB
>>> page size.
>> 
>> Missing attachment?
> 
> It was attached to Dave's original mail. Inlined below:
> 
> Index: eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h
> ===================================================================
> --- eglibc-2.18.orig/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2013-01-09 19:28:48.000000000 -0500
> +++ eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2014-04-09 21:08:06.516202583 -0400
> @@ -36,7 +36,7 @@
> #define SHM_UNLOCK	12		/* unlock segment (root only) */
> 
> /* Segment low boundary address multiple.  */
> -#define SHMLBA 0x00400000		/* address needs to be 4 Mb aligned */
> +#define SHMLBA		(__getpagesize ())
> 
> /* Type to count number of attaches.  */
> typedef unsigned long int shmatt_t;

This patch goes back to the following discussion:
https://patchwork.kernel.org/patch/3933841/

As far as I can tell, it was not submitted to the glibc list, nor is there a bug report regarding localedef.

Dave
--
John David Anglin	dave.anglin@bell.net



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The only users have been migrated off by commits d19f5e41b344 ("parisc:
Clean up fixup routines for get_user()/put_user()") and 554bfeceb8a2
("parisc: Fix access fault handling in pa_memcpy()").

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 8442727..04cb974 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -74,17 +74,6 @@ struct exception_table_entry {
 	ASM_EXCEPTIONTABLE_ENTRY( fault_addr, except_addr + 1)
 
 /*
- * The page fault handler stores, in a per-cpu area, the following information
- * if a fixup routine is available.
- */
-struct exception_data {
-	unsigned long fault_ip;
-	unsigned long fault_gp;
-	unsigned long fault_space;
-	unsigned long fault_addr;
-};
-
-/*
  * load_sr2() preloads the space register %%sr2 - based on the value of
  * get_fs() - with either a value of 0 to access kernel space (KERNEL_DS which
  * is 0), or with the current value of %%sr3 to access user space (USER_DS)
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index 1c4fe61..dfff8a0 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -298,11 +298,6 @@ int main(void)
 	DEFINE(HUGEPAGE_SIZE, PAGE_SIZE);
 #endif
 	BLANK();
-	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
-	DEFINE(EXCDATA_GP, offsetof(struct exception_data, fault_gp));
-	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
-	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
-	BLANK();
 	DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
 	BLANK();
 	return 0;
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 32ec221..fdc34cf 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -29,8 +29,6 @@
 #define BITSSET		0x1c0	/* for identifying LDCW */
 
 
-DEFINE_PER_CPU(struct exception_data, exception_data);
-
 int show_unhandled_signals = 1;
 
 /*
@@ -143,13 +141,6 @@ int fixup_exception(struct pt_regs *regs)
 
 	fix = search_exception_tables(regs->iaoq[0]);
 	if (fix) {
-		struct exception_data *d;
-		d = this_cpu_ptr(&exception_data);
-		d->fault_ip = regs->iaoq[0];
-		d->fault_gp = regs->gr[27];
-		d->fault_space = regs->isr;
-		d->fault_addr = regs->ior;

From - Thu Nov 08 21:39:47 2018
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: mmap problem in localedef
Date: Sun, 2 Apr 2017 22:12:45 +0300
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Approved: news@gmane.org
Message-ID: <20170402191245.odedqsqcx2cp5xtt@raspberrypi-3.musicnaut.iki.fi>
References: <alpine.LRH.2.20.1612051330040.25582@math.ut.ee>
 <9B251251-04AB-4D78-ADD7-F0D429DEB761@bell.net>
 <20170401183717.jpvilw2u4lgiceuv@raspberrypi-3.musicnaut.iki.fi>
 <2241815.7QkIsKQeSs@daneel.sf-tec.de>
 <20170401191023.xpf32zopaecd7dzy@raspberrypi-3.musicnaut.iki.fi>
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To: John David Anglin <dave.anglin@bell.net>
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Hi,

On Sun, Apr 02, 2017 at 10:08:59AM -0400, John David Anglin wrote:
> On 2017-04-01, at 3:10 PM, Aaro Koskinen wrote:
> > It was attached to Dave's original mail. Inlined below:
> > 
> > Index: eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h
> > ===================================================================
> > --- eglibc-2.18.orig/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2013-01-09 19:28:48.000000000 -0500
> > +++ eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2014-04-09 21:08:06.516202583 -0400
> > @@ -36,7 +36,7 @@
> > #define SHM_UNLOCK	12		/* unlock segment (root only) */
> > 
> > /* Segment low boundary address multiple.  */
> > -#define SHMLBA 0x00400000		/* address needs to be 4 Mb aligned */
> > +#define SHMLBA		(__getpagesize ())
> > 
> > /* Type to count number of attaches.  */
> > typedef unsigned long int shmatt_t;
> 
> This patch goes back to the following discussion:
> https://patchwork.kernel.org/patch/3933841/
> 
> As far as I can tell, it was not submitted to the glibc list, nor is
> there a bug report regarding localedef.

glibc bug report: https://sourceware.org/bugzilla/show_bug.cgi?id=19838

A.
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From - Thu Nov 08 21:39:47 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: mmap problem in localedef
Date: Sun, 2 Apr 2017 15:49:07 -0400
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References: <alpine.LRH.2.20.1612051330040.25582@math.ut.ee> <9B251251-04AB-4D78-ADD7-F0D429DEB761@bell.net> <20170401183717.jpvilw2u4lgiceuv@raspberrypi-3.musicnaut.iki.fi> <2241815.7QkIsKQeSs@daneel.sf-tec.de> <20170401191023.xpf32zopaecd7dzy@raspberrypi-3.musicnaut.iki.fi> <59CDF2DE-076C-4BC0-8381-CE31A2AA8F56@bell.net> <20170402191245.odedqsqcx2cp5xtt@raspberrypi-3.musicnaut.iki.fi>
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On 2017-04-02, at 3:12 PM, Aaro Koskinen wrote:

> Hi,
> 
> On Sun, Apr 02, 2017 at 10:08:59AM -0400, John David Anglin wrote:
>> On 2017-04-01, at 3:10 PM, Aaro Koskinen wrote:
>>> It was attached to Dave's original mail. Inlined below:
>>> 
>>> Index: eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h
>>> ===================================================================
>>> --- eglibc-2.18.orig/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2013-01-09 19:28:48.000000000 -0500
>>> +++ eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2014-04-09 21:08:06.516202583 -0400
>>> @@ -36,7 +36,7 @@
>>> #define SHM_UNLOCK	12		/* unlock segment (root only) */
>>> 
>>> /* Segment low boundary address multiple.  */
>>> -#define SHMLBA 0x00400000		/* address needs to be 4 Mb aligned */
>>> +#define SHMLBA		(__getpagesize ())
>>> 
>>> /* Type to count number of attaches.  */
>>> typedef unsigned long int shmatt_t;
>> 
>> This patch goes back to the following discussion:
>> https://patchwork.kernel.org/patch/3933841/
>> 
>> As far as I can tell, it was not submitted to the glibc list, nor is
>> there a bug report regarding localedef.
> 
> glibc bug report: https://sourceware.org/bugzilla/show_bug.cgi?id=19838


Helge, would you send this change to glibc list?  If you already sent it, would you do a ping?

You are in the best position to explain why this value should be page size and not 4MB.  It would be good to note
in BZ where patch is on list.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:39:47 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: mmap problem in localedef
Date: Sun, 2 Apr 2017 16:13:10 -0400
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Approved: news@gmane.org
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References: <alpine.LRH.2.20.1612051330040.25582@math.ut.ee> <9B251251-04AB-4D78-ADD7-F0D429DEB761@bell.net> <20170401183717.jpvilw2u4lgiceuv@raspberrypi-3.musicnaut.iki.fi> <2241815.7QkIsKQeSs@daneel.sf-tec.de> <20170401191023.xpf32zopaecd7dzy@raspberrypi-3.musicnaut.iki.fi> <59CDF2DE-076C-4BC0-8381-CE31A2AA8F56@bell.net> <20170402191245.odedqsqcx2cp5xtt@raspberrypi-3.musicnaut.iki.fi> <C5E87DDC-4792-483B-835F-C396A4067174@bell.net>
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Cc: Aaro Koskinen <aaro.koskinen@iki.fi>, Helge Deller <deller@gmx.de>,
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On 2017-04-02, at 3:49 PM, John David Anglin wrote:

> You are in the best position to explain why this value should be page size and not 4MB.  It would be good to note
> in BZ where patch is on list.

Just after I wrote this message, I noticed a slew of INEQUIVALENT ALIASES messages on console:

mx3210 login: INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bbf000 and 0x41003000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bbf000 and 0x41003000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bbf000 and 0x41003000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bbf000 and 0x41003000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bbf000 and 0x41003000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bbf000 and 0x41003000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bbf000 and 0x41003000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bbf000 and 0x41003000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bbf000 and 0x41003000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bbf000 and 0x41003000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bbf000 and 0x41003000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bbf000 and 0x41003000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so

They might be from firefox or glibc testsuite.

Dave
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From - Thu Nov 08 21:39:47 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: mmap problem in localedef
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On 2017-04-02, at 4:13 PM, John David Anglin wrote:

> INEQUIVALENT ALIASES 0xf8bc0000 and 0x41004000 in file ld-2.24.so
> INEQUIVALENT ALIASES 0xf8bbf000 and 0x41003000 in file ld-2.24.so

Typically, we have following in maps:
f8bbc000-f8bdf000 r-xp 00000000 08:25 33710119                           /lib/hppa-linux-gnu/ld-2.24.so
f8bdf000-f8be3000 rwxp 00023000 08:25 33710119                           /lib/hppa-linux-gnu/ld-2.24.so

Dave
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Subject: Re: mmap problem in localedef
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On 2017-04-02, at 3:49 PM, John David Anglin wrote:

> On 2017-04-02, at 3:12 PM, Aaro Koskinen wrote:
> 
>> Hi,
>> 
>> On Sun, Apr 02, 2017 at 10:08:59AM -0400, John David Anglin wrote:
>>> On 2017-04-01, at 3:10 PM, Aaro Koskinen wrote:
>>>> It was attached to Dave's original mail. Inlined below:
>>>> 
>>>> Index: eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h
>>>> ===================================================================
>>>> --- eglibc-2.18.orig/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2013-01-09 19:28:48.000000000 -0500
>>>> +++ eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h	2014-04-09 21:08:06.516202583 -0400
>>>> @@ -36,7 +36,7 @@
>>>> #define SHM_UNLOCK	12		/* unlock segment (root only) */
>>>> 
>>>> /* Segment low boundary address multiple.  */
>>>> -#define SHMLBA 0x00400000		/* address needs to be 4 Mb aligned */
>>>> +#define SHMLBA		(__getpagesize ())
>>>> 
>>>> /* Type to count number of attaches.  */
>>>> typedef unsigned long int shmatt_t;
>>> 
>>> This patch goes back to the following discussion:
>>> https://patchwork.kernel.org/patch/3933841/
>>> 
>>> As far as I can tell, it was not submitted to the glibc list, nor is
>>> there a bug report regarding localedef.
>> 
>> glibc bug report: https://sourceware.org/bugzilla/show_bug.cgi?id=19838
> 
> 
> Helge, would you send this change to glibc list?  If you already sent it, would you do a ping?

Actually, I see from further research that I'm to blame:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725508

Your bug report was here:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741243

> 
> You are in the best position to explain why this value should be page size and not 4MB.  It would be good to note
> in BZ where patch is on list.

Given the inequivalent alias messages which may have come from glibc testsuite, I'm not sure we have this right.
It seems like the kernel is not sharing pages in ld-2.24.so correctly.  The text and data in the file appear correctly
aligned on page boundaries.

Dave
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From - Thu Nov 08 21:39:48 2018
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From: David Howells <dhowells@redhat.com>
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Subject: [PATCH 19/38] Annotate hardware config module parameters in
 drivers/net/ethernet/
Date: Wed, 05 Apr 2017 17:59:39 +0100
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When the kernel is running in secure boot mode, we lock down the kernel to
prevent userspace from modifying the running kernel image.  Whilst this
includes prohibiting access to things like /dev/mem, it must also prevent
access by means of configuring driver modules in such a way as to cause a
device to access or modify the kernel image.

To this end, annotate module_param* statements that refer to hardware
configuration and indicate for future reference what type of parameter they
specify.  The parameter parser in the core sees this information and can
skip such parameters with an error message if the kernel is locked down.
The module initialisation then runs as normal, but just sees whatever the
default values for those parameters is.

Note that we do still need to do the module initialisation because some
drivers have viable defaults set in case parameters aren't specified and
some drivers support automatic configuration (e.g. PNP or PCI) in addition
to manually coded parameters.

This patch annotates drivers in drivers/net/ethernet/.

Suggested-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steffen Klassert <klassert@mathematik.tu-chemnitz.de>
cc: Jaroslav Kysela <perex@perex.cz>
cc: netdev@vger.kernel.org
cc: linux-parisc@vger.kernel.org
---

 drivers/net/ethernet/3com/3c509.c      |    2 +-
 drivers/net/ethernet/3com/3c59x.c      |    4 ++--
 drivers/net/ethernet/8390/ne.c         |    4 ++--
 drivers/net/ethernet/8390/smc-ultra.c  |    4 ++--
 drivers/net/ethernet/8390/wd.c         |    8 ++++----
 drivers/net/ethernet/amd/lance.c       |    6 +++---
 drivers/net/ethernet/amd/ni65.c        |    6 +++---
 drivers/net/ethernet/cirrus/cs89x0.c   |    6 +++---
 drivers/net/ethernet/dec/tulip/de4x5.c |    2 +-
 drivers/net/ethernet/hp/hp100.c        |    2 +-
 drivers/net/ethernet/realtek/atp.c     |    4 ++--
 drivers/net/ethernet/smsc/smc9194.c    |    4 ++--
 12 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/drivers/net/ethernet/3com/3c509.c b/drivers/net/ethernet/3com/3c509.c
index c7f9f2c77da7..db8592d412ab 100644
--- a/drivers/net/ethernet/3com/3c509.c
+++ b/drivers/net/ethernet/3com/3c509.c
@@ -1371,7 +1371,7 @@ el3_resume(struct device *pdev)
 #endif /* CONFIG_PM */
 
 module_param(debug,int, 0);
-module_param_array(irq, int, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
 module_param(max_interrupt_work, int, 0);
 MODULE_PARM_DESC(debug, "debug level (0-6)");
 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index 40196f41768a..e41245a54f8b 100644
--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -813,8 +813,8 @@ module_param(global_enable_wol, int, 0);
 module_param_array(enable_wol, int, NULL, 0);
 module_param(rx_copybreak, int, 0);
 module_param(max_interrupt_work, int, 0);
-module_param(compaq_ioaddr, int, 0);
-module_param(compaq_irq, int, 0);
+module_param_hw(compaq_ioaddr, int, ioport, 0);
+module_param_hw(compaq_irq, int, irq, 0);
 module_param(compaq_device_id, int, 0);
 module_param(watchdog, int, 0);
 module_param(global_use_mmio, int, 0);
diff --git a/drivers/net/ethernet/8390/ne.c b/drivers/net/ethernet/8390/ne.c
index c063b410a163..66f47987e2a2 100644
--- a/drivers/net/ethernet/8390/ne.c
+++ b/drivers/net/ethernet/8390/ne.c
@@ -74,8 +74,8 @@ static int bad[MAX_NE_CARDS];
 static u32 ne_msg_enable;
 
 #ifdef MODULE
-module_param_array(io, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
+module_param_hw_array(io, int, ioport, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
 module_param_array(bad, int, NULL, 0);
 module_param_named(msg_enable, ne_msg_enable, uint, (S_IRUSR|S_IRGRP|S_IROTH));
 MODULE_PARM_DESC(io, "I/O base address(es),required");
diff --git a/drivers/net/ethernet/8390/smc-ultra.c b/drivers/net/ethernet/8390/smc-ultra.c
index 364b6514f65f..4e02f6a23575 100644
--- a/drivers/net/ethernet/8390/smc-ultra.c
+++ b/drivers/net/ethernet/8390/smc-ultra.c
@@ -561,8 +561,8 @@ static struct net_device *dev_ultra[MAX_ULTRA_CARDS];
 static int io[MAX_ULTRA_CARDS];
 static int irq[MAX_ULTRA_CARDS];
 
-module_param_array(io, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
+module_param_hw_array(io, int, ioport, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
 module_param_named(msg_enable, ultra_msg_enable, uint, (S_IRUSR|S_IRGRP|S_IROTH));
 MODULE_PARM_DESC(io, "I/O base address(es)");
 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
diff --git a/drivers/net/ethernet/8390/wd.c b/drivers/net/ethernet/8390/wd.c
index ad019cbc698f..6efa2722f850 100644
--- a/drivers/net/ethernet/8390/wd.c
+++ b/drivers/net/ethernet/8390/wd.c
@@ -503,10 +503,10 @@ static int irq[MAX_WD_CARDS];
 static int mem[MAX_WD_CARDS];
 static int mem_end[MAX_WD_CARDS];	/* for non std. mem size */
 
-module_param_array(io, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
-module_param_array(mem, int, NULL, 0);
-module_param_array(mem_end, int, NULL, 0);
+module_param_hw_array(io, int, ioport, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
+module_param_hw_array(mem, int, iomem, NULL, 0);
+module_param_hw_array(mem_end, int, iomem, NULL, 0);
 module_param_named(msg_enable, wd_msg_enable, uint, (S_IRUSR|S_IRGRP|S_IROTH));
 MODULE_PARM_DESC(io, "I/O base address(es)");
 MODULE_PARM_DESC(irq, "IRQ number(s) (ignored for PureData boards)");
diff --git a/drivers/net/ethernet/amd/lance.c b/drivers/net/ethernet/amd/lance.c
index 61a641f23149..12a6a93d221b 100644
--- a/drivers/net/ethernet/amd/lance.c
+++ b/drivers/net/ethernet/amd/lance.c
@@ -318,9 +318,9 @@ static int io[MAX_CARDS];
 static int dma[MAX_CARDS];
 static int irq[MAX_CARDS];
 
-module_param_array(io, int, NULL, 0);
-module_param_array(dma, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
+module_param_hw_array(io, int, ioport, NULL, 0);
+module_param_hw_array(dma, int, dma, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
 module_param(lance_debug, int, 0);
 MODULE_PARM_DESC(io, "LANCE/PCnet I/O base address(es),required");
 MODULE_PARM_DESC(dma, "LANCE/PCnet ISA DMA channel (ignored for some devices)");
diff --git a/drivers/net/ethernet/amd/ni65.c b/drivers/net/ethernet/amd/ni65.c
index 5985bf220a8d..e248d1ab3e47 100644
--- a/drivers/net/ethernet/amd/ni65.c
+++ b/drivers/net/ethernet/amd/ni65.c
@@ -1227,9 +1227,9 @@ static void set_multicast_list(struct net_device *dev)
 #ifdef MODULE
 static struct net_device *dev_ni65;
 
-module_param(irq, int, 0);
-module_param(io, int, 0);
-module_param(dma, int, 0);
+module_param_hw(irq, int, irq, 0);
+module_param_hw(io, int, ioport, 0);
+module_param_hw(dma, int, dma, 0);
 MODULE_PARM_DESC(irq, "ni6510 IRQ number (ignored for some cards)");
 MODULE_PARM_DESC(io, "ni6510 I/O base address");
 MODULE_PARM_DESC(dma, "ni6510 ISA DMA channel (ignored for some cards)");
diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c
index 3647b28e8de0..8f660d9761cc 100644
--- a/drivers/net/ethernet/cirrus/cs89x0.c
+++ b/drivers/net/ethernet/cirrus/cs89x0.c
@@ -1704,12 +1704,12 @@ static int use_dma;			/* These generate unused var warnings if ALLOW_DMA = 0 */
 static int dma;
 static int dmasize = 16;		/* or 64 */
 
-module_param(io, int, 0);
-module_param(irq, int, 0);
+module_param_hw(io, int, ioport, 0);
+module_param_hw(irq, int, irq, 0);
 module_param(debug, int, 0);
 module_param_string(media, media, sizeof(media), 0);
 module_param(duplex, int, 0);
-module_param(dma , int, 0);
+module_param_hw(dma , int, dma, 0);
 module_param(dmasize , int, 0);
 module_param(use_dma , int, 0);
 MODULE_PARM_DESC(io, "cs89x0 I/O base address");
diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index df4a871df633..fd6bcf024729 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -1015,7 +1015,7 @@ static int     compact_infoblock(struct net_device *dev, u_char count, u_char *p
 
 static int io=0x0;/* EDIT THIS LINE FOR YOUR CONFIGURATION IF NEEDED        */
 
-module_param(io, int, 0);
+module_param_hw(io, int, ioport, 0);
 module_param(de4x5_debug, int, 0);
 module_param(dec_only, int, 0);
 module_param(args, charp, 0);
diff --git a/drivers/net/ethernet/hp/hp100.c b/drivers/net/ethernet/hp/hp100.c
index 1a31bee6e728..5673b071e39d 100644
--- a/drivers/net/ethernet/hp/hp100.c
+++ b/drivers/net/ethernet/hp/hp100.c
@@ -2966,7 +2966,7 @@ MODULE_DESCRIPTION("HP CASCADE Architecture Driver for 100VG-AnyLan Network Adap
 #define HP100_DEVICES 5
 /* Parameters set by insmod */
 static int hp100_port[HP100_DEVICES] = { 0, [1 ... (HP100_DEVICES-1)] = -1 };
-module_param_array(hp100_port, int, NULL, 0);
+module_param_hw_array(hp100_port, int, ioport, NULL, 0);
 
 /* List of devices */
 static struct net_device *hp100_devlist[HP100_DEVICES];
diff --git a/drivers/net/ethernet/realtek/atp.c b/drivers/net/ethernet/realtek/atp.c
index 9bcd4aefc9c5..bed34684994f 100644
--- a/drivers/net/ethernet/realtek/atp.c
+++ b/drivers/net/ethernet/realtek/atp.c
@@ -151,8 +151,8 @@ MODULE_LICENSE("GPL");
 
 module_param(max_interrupt_work, int, 0);
 module_param(debug, int, 0);
-module_param_array(io, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
+module_param_hw_array(io, int, ioport, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
 module_param_array(xcvr, int, NULL, 0);
 MODULE_PARM_DESC(max_interrupt_work, "ATP maximum events handled per interrupt");
 MODULE_PARM_DESC(debug, "ATP debug level (0-7)");
diff --git a/drivers/net/ethernet/smsc/smc9194.c b/drivers/net/ethernet/smsc/smc9194.c
index c8d84679ede7..d3bb2ba51f40 100644
--- a/drivers/net/ethernet/smsc/smc9194.c
+++ b/drivers/net/ethernet/smsc/smc9194.c
@@ -1501,8 +1501,8 @@ static void smc_set_multicast_list(struct net_device *dev)
 static struct net_device *devSMC9194;
 MODULE_LICENSE("GPL");
 
-module_param(io, int, 0);
-module_param(irq, int, 0);
+module_param_hw(io, int, ioport, 0);
+module_param_hw(irq, int, irq, 0);
 module_param(ifport, int, 0);
 MODULE_PARM_DESC(io, "SMC 99194 I/O base address");
 MODULE_PARM_DESC(irq, "SMC 99194 IRQ number");



From - Thu Nov 08 21:39:48 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: mmap problem in localedef
Date: Wed, 5 Apr 2017 19:03:07 -0400
Lines: 1641
Approved: news@gmane.org
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References: <alpine.LRH.2.20.1612051330040.25582@math.ut.ee> <9B251251-04AB-4D78-ADD7-F0D429DEB761@bell.net> <20170401183717.jpvilw2u4lgiceuv@raspberrypi-3.musicnaut.iki.fi> <2241815.7QkIsKQeSs@daneel.sf-tec.de> <20170401191023.xpf32zopaecd7dzy@raspberrypi-3.musicnaut.iki.fi> <59CDF2DE-076C-4BC0-8381-CE31A2AA8F56@bell.net> <20170402191245.odedqsqcx2cp5xtt@raspberrypi-3.musicnaut.iki.fi>
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Cc: Rolf Eike Beer <eike-kernel@sf-tec.de>,
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To: Aaro Koskinen <aaro.koskinen@iki.fi>
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On 2017-04-02, at 3:12 PM, Aaro Koskinen wrote:

> Hi,
>=20
> On Sun, Apr 02, 2017 at 10:08:59AM -0400, John David Anglin wrote:
>> On 2017-04-01, at 3:10 PM, Aaro Koskinen wrote:
>>> It was attached to Dave's original mail. Inlined below:
>>>=20
>>> Index: eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h
>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>>> --- eglibc-2.18.orig/sysdeps/unix/sysv/linux/hppa/bits/shm.h	=
2013-01-09 19:28:48.000000000 -0500
>>> +++ eglibc-2.18/sysdeps/unix/sysv/linux/hppa/bits/shm.h	=
2014-04-09 21:08:06.516202583 -0400
>>> @@ -36,7 +36,7 @@
>>> #define SHM_UNLOCK	12		/* unlock segment (root only) */
>>>=20
>>> /* Segment low boundary address multiple.  */
>>> -#define SHMLBA 0x00400000		/* address needs to be 4 Mb =
aligned */
>>> +#define SHMLBA		(__getpagesize ())
>>>=20
>>> /* Type to count number of attaches.  */
>>> typedef unsigned long int shmatt_t;
>>=20
>> This patch goes back to the following discussion:
>> https://patchwork.kernel.org/patch/3933841/
>>=20
>> As far as I can tell, it was not submitted to the glibc list, nor is
>> there a bug report regarding localedef.
>=20
> glibc bug report: =
https://sourceware.org/bugzilla/show_bug.cgi?id=3D19838


Attached is my latest patch for glibc trunk on hppa.  =
sysdeps/hppa/fpu/libm-test-ulps is updated with new
ulps values.  sysdeps/hppa/dl-fptr.c b/sysdeps/hppa/dl-fptr.c is updated =
because define for ALIGN_UP
moved.

There is still no clear resolution on SHMLBA value but the kernel was =
updated sometime ago to align unmapped
areas using color.  The SHM_COLOUR define is set to 4MB.  The intention =
was to allow shared memory areas
to be aligned on page boundaries.

With this update, I had the following test results:

FAIL: debug/tst-backtrace2
FAIL: debug/tst-backtrace3
FAIL: debug/tst-backtrace4
FAIL: debug/tst-backtrace5
FAIL: debug/tst-backtrace6
FAIL: elf/check-execstack
FAIL: elf/check-textrel
FAIL: elf/tst-audit2
FAIL: malloc/tst-malloc-thread-fail
FAIL: malloc/tst-trim1
FAIL: math/test-double-canonicalize
FAIL: math/test-float-canonicalize
FAIL: math/test-idouble-canonicalize
FAIL: math/test-ifloat-canonicalize
UNSUPPORTED: nptl/test-cond-printers
UNSUPPORTED: nptl/test-condattr-printers
UNSUPPORTED: nptl/test-mutex-printers
UNSUPPORTED: nptl/test-mutexattr-printers
UNSUPPORTED: nptl/test-rwlock-printers
UNSUPPORTED: nptl/test-rwlockattr-printers
FAIL: nptl/tst-cleanupx4
FAIL: nptl/tst-cond25
FAIL: nptl/tst-create-detached
FAIL: nptl/tst-robust-fork
FAIL: nptl/tst-rwlock19
FAIL: nptl/tst-typesizes
FAIL: stdlib/tst-setcontext2
FAIL: timezone/tst-tzset
Summary of test results:
     22 FAIL
   3267 PASS
      6 UNSUPPORTED
     45 XFAIL

There are a few test that fail randomly.

Dave
--
John David Anglin	dave.anglin@bell.net



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diff --git a/elf/Makefile b/elf/Makefile
index cc4aeb25b6..883dd8f013 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -543,7 +543,7 @@ CFLAGS-ldconfig.c =3D $(SYSCONF-FLAGS) =
-D'LIBDIR=3D"$(libdir)"' \
 libof-ldconfig =3D ldconfig
 CFLAGS-dl-cache.c =3D $(SYSCONF-FLAGS)
 CFLAGS-cache.c =3D $(SYSCONF-FLAGS)
-CFLAGS-rtld.c =3D $(SYSCONF-FLAGS)
+CFLAGS-rtld.c +=3D $(SYSCONF-FLAGS)
=20
 cpp-srcs-left :=3D $(all-rtld-routines:=3D.os)
 lib :=3D rtld
diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c
index e5c5f79a82..085ae07b32 100644
--- a/nptl/allocatestack.c
+++ b/nptl/allocatestack.c
@@ -647,9 +647,13 @@ allocate_stack (const struct pthread_attr *attr, =
struct pthread **pdp,
 			prot) !=3D 0)
 	    goto mprot_error;
 #elif _STACK_GROWS_UP
-	  if (mprotect ((char *) pd - pd->guardsize,
-			pd->guardsize - guardsize, prot) !=3D 0)
-	    goto mprot_error;
+	  char *new_guard =3D (char *) (((uintptr_t) pd - guardsize) & =
~pagesize_m1);
+	  char *old_guard =3D (char *) (((uintptr_t) pd - pd->guardsize) =
& ~pagesize_m1);
+	  /* The guard size difference might be > 0, but once rounded
+	     to the nearest page the size difference might be zero.  */
+	  if (old_guard - new_guard > 0)
+	    if (mprotect (old_guard, new_guard - old_guard, prot) !=3D =
0)
+	      goto mprot_error;
 #endif
=20
 	  pd->guardsize =3D guardsize;
diff --git a/resolv/res_mkquery.c b/resolv/res_mkquery.c
index d80b5318e5..99d7d96027 100644
--- a/resolv/res_mkquery.c
+++ b/resolv/res_mkquery.c
@@ -83,6 +83,15 @@
 # define RANDOM_BITS(Var) { uint64_t v64; HP_TIMING_NOW (v64); Var =3D =
v64; }
 #endif
=20
+/* The structure HEADER is normally aligned to a word boundary and its
+   fields are accessed using word loads and stores.  We need to access
+   this structure when it is aligned on a byte boundary.  This can =
cause
+   problems on machines with strict alignment.  So, we create a new
+   typedef to reduce its alignment to one.  This ensures the fields are
+   accessed with byte loads and stores.  */
+typedef HEADER __attribute__ ((__aligned__(1))) UHEADER;
+#define HEADER UHEADER
+
 /*
  * Form all types of queries.
  * Returns the size of the result or -1.
diff --git a/resolv/res_query.c b/resolv/res_query.c
index 07dc6f6583..9a1a8f90d1 100644
--- a/resolv/res_query.c
+++ b/resolv/res_query.c
@@ -78,6 +78,14 @@
 #include <stdlib.h>
 #include <string.h>
=20
+/* The structure HEADER is normally aligned to a word boundary and its
+   fields are accessed using word loads and stores.  We need to access=20=

+   this structure when it is aligned on a byte boundary.  This can =
cause
+   problems on machines with strict alignment.  So, we create a new
+   typedef to reduce its alignment to one.  This ensures the fields are
+   accessed with byte loads and stores.  */
+typedef HEADER __attribute__ ((__aligned__(1))) UHEADER;
+
 /* Options.  Leave them on. */
 /* #undef DEBUG */
=20
@@ -117,8 +125,8 @@ __libc_res_nquery(res_state statp,
 		  int *resplen2,
 		  int *answerp2_malloced)
 {
-	HEADER *hp =3D (HEADER *) answer;
-	HEADER *hp2;
+	UHEADER *hp =3D (UHEADER *) answer;
+	UHEADER *hp2;
 	int n, use_malloc =3D 0;
 	u_int oflags =3D statp->_flags;
=20
@@ -235,7 +243,7 @@ __libc_res_nquery(res_state statp,
=20
 	if (answerp !=3D NULL)
 	  /* __libc_res_nsend might have reallocated the buffer.  */
-	  hp =3D (HEADER *) *answerp;
+	  hp =3D (UHEADER *) *answerp;
=20
 	/* We simplify the following tests by assigning HP to HP2 or
 	   vice versa.  It is easy to verify that this is the same as
@@ -246,7 +254,7 @@ __libc_res_nquery(res_state statp,
 	  }
 	else
 	  {
-	    hp2 =3D (HEADER *) *answerp2;
+	    hp2 =3D (UHEADER *) *answerp2;
 	    if (n < (int) sizeof (HEADER))
 	      {
 	        hp =3D hp2;
@@ -336,7 +344,7 @@ __libc_res_nsearch(res_state statp,
 		   int *answerp2_malloced)
 {
 	const char *cp, * const *domain;
-	HEADER *hp =3D (HEADER *) answer;
+	UHEADER *hp =3D (UHEADER *) answer;
 	char tmp[NS_MAXDNAME];
 	u_int dots;
 	int trailing_dot, ret, saved_herrno;
diff --git a/resolv/res_send.c b/resolv/res_send.c
index 28c4cabfcb..19f9a86a2b 100644
--- a/resolv/res_send.c
+++ b/resolv/res_send.c
@@ -110,6 +110,15 @@
 #include <kernel-features.h>
 #include <libc-diag.h>
=20
+/* The structure HEADER is normally aligned to a word boundary and its
+   fields are accessed using word loads and stores.  We need to access=20=

+   this structure when it is aligned on a byte boundary.  This can =
cause
+   problems on machines with strict alignment.  So, we create a new
+   typedef to reduce its alignment to one.  This ensures the fields are
+   accessed with byte loads and stores.  */
+typedef HEADER __attribute__ ((__aligned__(1))) UHEADER;
+#define HEADER UHEADER
+
 #if PACKETSZ > 65536
 #define MAXPACKET       PACKETSZ
 #else
diff --git a/sysdeps/hppa/Makefile b/sysdeps/hppa/Makefile
index c0edb99917..64af43b5ff 100644
--- a/sysdeps/hppa/Makefile
+++ b/sysdeps/hppa/Makefile
@@ -23,6 +23,7 @@ LDFLAGS-c_pic.os +=3D -Wl,--unique=3D.text*
=20
 ifeq ($(subdir),elf)
 CFLAGS-rtld.c +=3D -mdisable-fpregs
+CFLAGS-dl-reloc.c +=3D --param inline-unit-growth=3D100
 sysdep-dl-routines +=3D dl-symaddr dl-fptr
 # dl-fptr.c needs a complete rewrite to fix ISO C aliasing violations.
 CFLAGS-dl-fptr.c =3D -Wno-error
diff --git a/sysdeps/hppa/__longjmp.c b/sysdeps/hppa/__longjmp.c
index a7eefc7ad6..438db01473 100644
--- a/sysdeps/hppa/__longjmp.c
+++ b/sysdeps/hppa/__longjmp.c
@@ -24,15 +24,16 @@
 void
 __longjmp (__jmp_buf env, int val)
 {
+#ifdef CHECK_SP
+  CHECK_SP (env[0].__jmp_buf.__sp);
+#endif
+
+  {
   /* We must use one of the non-callee saves registers
      for env.  */
   register unsigned long r26 asm ("r26") =3D (unsigned long)&env[0];
   register unsigned long r25 asm ("r25") =3D (unsigned long)(val =3D=3D =
0 ? 1 : val);
=20
-#ifdef CHECK_SP
-  CHECK_SP (env[0].__jmp_buf.__sp);
-#endif
-
   asm volatile(
 	/* Set return value.  */
 	"copy	%0, %%r28\n\t"
@@ -79,6 +80,8 @@ __longjmp (__jmp_buf env, int val)
 	: /* No outputs.  */
 	: "r" (r25), "r" (r26)
 	: /* No point in clobbers.  */ );
+  }
+
   /* Avoid `volatile function does return' warnings.  */
   for (;;);
 }
diff --git a/sysdeps/hppa/crti.S b/sysdeps/hppa/crti.S
index 7c1470ddf8..0f9bb7b013 100644
--- a/sysdeps/hppa/crti.S
+++ b/sysdeps/hppa/crti.S
@@ -49,6 +49,95 @@
 # define PREINIT_FUNCTION_WEAK 1
 #endif
=20
+#if PREINIT_FUNCTION_WEAK
+	weak_extern (PREINIT_FUNCTION)
+#else
+	.hidden PREINIT_FUNCTION
+#endif
+
+
+/* If we have working .init_array support, we want to keep the .init
+   section empty (apart from the mandatory prologue/epilogue.  This
+   ensures that the default unwind conventions (return-pointer in b0,
+   frame state in ar.pfs, etc.)  will do the Right Thing.  To ensure
+   an empty .init section, we register gmon_initializer() via the
+   .init_array.
+
+    --davidm 02/10/29 */
+
+#if PREINIT_FUNCTION_WEAK
+/* This blob of assembly code is one simple C function:
+
+static void
+__attribute__ ((used))
+gmon_initializer (void)
+{
+  extern void weak_function __gmon_start__ (void);
+
+  if (__gmon_start__)
+    (*__gmon_start__)();
+}
+
+In a final executable, PLABEL32 relocations for function pointers are
+resolved at link time.  Typically, binutils/ld resolves __gmon_start__
+using an external shared library.  __gmon_start__ is always called if
+it is found at link time.  If __gmon_start__ is not found at runtime
+due to a library update, then the function pointer will point at a null
+function descriptor and calling it will cause a segmentation fault.
+So, we call __canonicalize_funcptr_for_compare to obtain the =
canonicalized
+address of __gmon_start__ and skip calling __gmon_start__ if it is =
zero.
+
+ */
+	.type __canonicalize_funcptr_for_compare,@function
+	.type $$dyncall,@function
+
+	.section .data.rel.ro,"aw",@progbits
+	.align 4
+.LC0:
+	.type __gmon_start__,@function
+	.word P%__gmon_start__
+
+	.text
+	.align 4
+	.type gmon_initializer,@function
+gmon_initializer:
+	.PROC
+	.CALLINFO FRAME=3D64,CALLS,SAVE_RP,ENTRY_GR=3D4
+	.ENTRY
+	stw %r2,-20(%r30)
+	stwm %r4,64(%r30)
+	stw %r3,-60(%r30)
+	addil LT'.LC0,%r19
+	ldw RT'.LC0(%r1),%r28
+	ldw 0(%r28),%r3
+	comib,=3D 0,%r3,1f
+	copy %r19,%r4
+	stw %r19,-32(%r30)
+	bl __canonicalize_funcptr_for_compare,%r2
+	copy %r3,%r26
+	comib,=3D 0,%r28,1f
+	copy %r4,%r19
+	copy %r3,%r22
+	.CALL ARGW0=3DGR
+	bl $$dyncall,%r31
+	copy %r31,%r2
+1:
+	ldw -84(%r30),%r2
+	ldw -60(%r30),%r3
+	bv %r0(%r2)
+	ldwm -64(%r30),%r4
+	.EXIT
+	.PROCEND
+	.size gmon_initializer, .-gmon_initializer
+
+# undef PREINIT_FUNCTION
+# define PREINIT_FUNCTION gmon_initializer
+#endif
+
+	.section .init_array, "aw"
+	.word P% PREINIT_FUNCTION
+
+
 /* _init prologue.  */
 	.section .init, "ax", %progbits
 	.align 4
@@ -58,14 +147,6 @@ _init:
 	stw	%rp,-20(%sp)
 	stwm	%r4,64(%sp)
 	stw	%r19,-32(%sp)
-#if PREINIT_FUNCTION_WEAK
-	bl	PREINIT_FUNCTION,%rp
-	copy	%r19,%r4	/* delay slot */
-#else
-	bl	PREINIT_FUNCTION,%rp
-	copy	%r19,%r4	/* delay slot */
-#endif
-	copy	%r4,%r19
=20
 /* _fini prologue.  */
         .section .fini,"ax",%progbits
diff --git a/sysdeps/hppa/crtn.S b/sysdeps/hppa/crtn.S
index 42f310d217..49666b81f9 100644
--- a/sysdeps/hppa/crtn.S
+++ b/sysdeps/hppa/crtn.S
@@ -38,27 +38,6 @@
 /* crtn.S puts function epilogues in the .init and .fini sections
    corresponding to the prologues in crti.S. */
=20
-/* Note that we cannot have a weak undefined __gmon_start__, because
-   that would require this to be PIC, and the linker is currently not
-   able to generate a proper procedure descriptor for _init.  Sad but
-   true.  Anyway, HPPA is one of those horrible architectures where
-   making the comparison and indirect call is quite expensive (see the
-   comment in sysdeps/generic/initfini.c). */
-        .text
-        .align 4
-        .weak   __gmon_start__
-        .type    __gmon_start__,@function
-__gmon_start__:
-	.proc
-	.callinfo
-	.entry
-        bv,n %r0(%r2)
-	.exit
-	.procend
-
-/* Here is the tail end of _init.  We put __gmon_start before this so
-   that the assembler creates the .PARISC.unwind section for us, ie.
-   with the right attributes.  */
 	.section .init, "ax", @progbits
 	ldw	-84(%sp),%rp
 	copy	%r4,%r19
diff --git a/sysdeps/hppa/dl-fptr.c b/sysdeps/hppa/dl-fptr.c
index 83bdb91202..96fd09d192 100644
--- a/sysdeps/hppa/dl-fptr.c
+++ b/sysdeps/hppa/dl-fptr.c
@@ -28,6 +28,7 @@
 #include <dl-fptr.h>
 #include <dl-unmap-segments.h>
 #include <atomic.h>
+#include <libc-pointer-arith.h>
=20
 #ifndef ELF_MACHINE_BOOT_FPTR_TABLE_LEN
 /* ELF_MACHINE_BOOT_FPTR_TABLE_LEN should be greater than the number of
@@ -181,24 +182,29 @@ make_fdesc (ElfW(Addr) ip, ElfW(Addr) gp)
 static inline ElfW(Addr) * __attribute__ ((always_inline))
 make_fptr_table (struct link_map *map)
 {
-  const ElfW(Sym) *symtab
-    =3D (const void *) D_PTR (map, l_info[DT_SYMTAB]);
+  const ElfW(Sym) *symtab =3D (const void *) D_PTR (map, =
l_info[DT_SYMTAB]);
   const char *strtab =3D (const void *) D_PTR (map, l_info[DT_STRTAB]);
   ElfW(Addr) *fptr_table;
   size_t size;
   size_t len;
+  const ElfW(Sym) *symtabend;
=20
-  /* XXX Apparently the only way to find out the size of the dynamic
-     symbol section is to assume that the string table follows right
-     afterwards...  */
-  len =3D ((strtab - (char *) symtab)
+  /* Determine the end of the dynamic symbol table using the hash.  */
+  if (map->l_info[DT_HASH] !=3D NULL)
+    symtabend =3D (symtab + ((Elf_Symndx *) D_PTR (map, =
l_info[DT_HASH]))[1]);
+  else
+  /* There is no direct way to determine the number of symbols in the
+     dynamic symbol table and no hash table is present.  The ELF
+     binary is ill-formed but what shall we do?  Use the beginning of
+     the string table which generally follows the symbol table.  */
+    symtabend =3D (const ElfW(Sym) *) strtab;
+
+  len =3D (((char *) symtabend - (char *) symtab)
 	 / map->l_info[DT_SYMENT]->d_un.d_val);
-  size =3D ((len * sizeof (fptr_table[0]) + GLRO(dl_pagesize) - 1)
-	  & -GLRO(dl_pagesize));
-  /* XXX We don't support here in the moment systems without MAP_ANON.
-     There probably are none for IA-64.  In case this is proven wrong
-     we will have to open /dev/null here and use the file descriptor
-     instead of the hard-coded -1.  */
+  size =3D ALIGN_UP (len * sizeof (fptr_table[0]), GLRO(dl_pagesize));
+
+  /* We don't support systems without MAP_ANON.  We avoid using malloc
+     because this might get called before malloc is setup.  */
   fptr_table =3D __mmap (NULL, size,
 		       PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
 		       -1, 0);
@@ -331,22 +337,45 @@ elf_machine_resolve (void)
   return addr;
 }
=20
+static inline int
+_dl_read_access_allowed (unsigned int *addr)
+{
+  int result;
+
+  asm ("proberi	(%1),3,%0" : "=3Dr" (result) : "r" (addr) : );
+
+  return result;
+}
+
 ElfW(Addr)
 _dl_lookup_address (const void *address)
 {
   ElfW(Addr) addr =3D (ElfW(Addr)) address;
   unsigned int *desc, *gptr;
=20
-  /* Check for special cases.  */
-  if ((int) addr =3D=3D -1
-      || (unsigned int) addr < 4096
-      || !((unsigned int) addr & 2))
+  /* Return ADDR if the least-significant two bits of ADDR are not =
consistent
+     with ADDR being a linker defined function pointer.  The normal =
value for
+     a code address in a backtrace is 3.  */
+  if (((unsigned int) addr & 3) !=3D 2)
+    return addr;
+
+  /* Handle special case where ADDR points to page 0.  */
+  if ((unsigned int) addr < 4096)
     return addr;
=20
   /* Clear least-significant two bits from descriptor address.  */
   desc =3D (unsigned int *) ((unsigned int) addr & ~3);
+  if (!_dl_read_access_allowed (desc))
+    return addr;
=20
-  /* Check if descriptor requires resolution.  The following trampoline =
is
+  /* Load first word of candidate descriptor.  It should be a pointer
+     with word alignment and point to memory that can be read.  */
+  gptr =3D (unsigned int *) desc[0];
+  if (((unsigned int) gptr & 3) !=3D 0
+      || !_dl_read_access_allowed (gptr))
+    return addr;
+
+  /* See if descriptor requires resolution.  The following trampoline =
is
      used in each global offset table for function resolution:
=20
 		ldw 0(r20),r22
@@ -358,7 +387,6 @@ _dl_lookup_address (const void *address)
 		.word "_dl_runtime_resolve ltp"
      got:	.word _DYNAMIC
 		.word "struct link map address" */
-  gptr =3D (unsigned int *) desc[0];
   if (gptr[0] =3D=3D 0xea9f1fdd			/* b,l .-12,r20  =
   */
       && gptr[1] =3D=3D 0xd6801c1e			/* depwi =
0,31,2,r20 */
       && (ElfW(Addr)) gptr[2] =3D=3D elf_machine_resolve ())
diff --git a/sysdeps/hppa/dl-trampoline.S b/sysdeps/hppa/dl-trampoline.S
index 856339bffe..f1294a931f 100644
--- a/sysdeps/hppa/dl-trampoline.S
+++ b/sysdeps/hppa/dl-trampoline.S
@@ -82,6 +82,11 @@ _dl_runtime_resolve:
 	bl	_dl_fixup,%rp
 	copy	%r21,%r19		/* set fixup func ltp */
=20
+	/* Sometimes a final executable may attempt to call an undefined
+	   weak function (e.g., __gmon_start__).  Return if the function
+	   was not resolved by _dl_fixup */
+	comib,=3D	0,%r28,1f
+
 	/* Load up the returned func descriptor */
 	copy	%r28, %r22
 	copy	%r29, %r19
@@ -107,6 +112,13 @@ _dl_runtime_resolve:
 	/* Jump to new function, but return to previous function */
 	bv	%r0(%r22)
 	ldw	-20(%sp),%rp
+
+1:
+	/* Return to previous function */
+	ldw	-148(%sp),%rp
+	bv	%r0(%rp)
+	ldo	-128(%sp),%sp
+
         .EXIT
         .PROCEND
 	cfi_endproc
diff --git a/sysdeps/hppa/fpu/libm-test-ulps =
b/sysdeps/hppa/fpu/libm-test-ulps
index b5c8e7ccde..6e2058391d 100644
--- a/sysdeps/hppa/fpu/libm-test-ulps
+++ b/sysdeps/hppa/fpu/libm-test-ulps
@@ -184,15 +184,15 @@ idouble: 1
 ifloat: 2
=20
 Function: Imaginary part of "cacos":
-double: 1
+double: 2
 float: 2
-idouble: 1
+idouble: 2
 ifloat: 2
=20
 Function: Real part of "cacos_downward":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: Imaginary part of "cacos_downward":
@@ -202,9 +202,9 @@ idouble: 5
 ifloat: 3
=20
 Function: Real part of "cacos_towardzero":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: Imaginary part of "cacos_towardzero":
@@ -220,15 +220,15 @@ idouble: 2
 ifloat: 2
=20
 Function: Imaginary part of "cacos_upward":
-double: 4
-float: 4
-idouble: 4
-ifloat: 4
+double: 5
+float: 7
+idouble: 5
+ifloat: 7
=20
 Function: Real part of "cacosh":
-double: 1
+double: 2
 float: 2
-idouble: 1
+idouble: 2
 ifloat: 2
=20
 Function: Imaginary part of "cacosh":
@@ -244,10 +244,10 @@ idouble: 5
 ifloat: 3
=20
 Function: Imaginary part of "cacosh_downward":
-double: 2
-float: 2
-idouble: 2
-ifloat: 2
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
=20
 Function: Real part of "cacosh_towardzero":
 double: 5
@@ -256,9 +256,9 @@ idouble: 5
 ifloat: 3
=20
 Function: Imaginary part of "cacosh_towardzero":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: Real part of "cacosh_upward":
@@ -268,9 +268,9 @@ idouble: 4
 ifloat: 4
=20
 Function: Imaginary part of "cacosh_upward":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: "carg":
@@ -304,16 +304,16 @@ ildouble: 1
 ldouble: 1
=20
 Function: Imaginary part of "casin":
-double: 1
+double: 2
 float: 2
-idouble: 1
+idouble: 2
 ifloat: 2
=20
 Function: Real part of "casin_downward":
 double: 3
-float: 1
+float: 2
 idouble: 3
-ifloat: 1
+ifloat: 2
=20
 Function: Imaginary part of "casin_downward":
 double: 5
@@ -334,16 +334,16 @@ idouble: 5
 ifloat: 3
=20
 Function: Real part of "casin_upward":
-double: 2
-float: 1
-idouble: 2
-ifloat: 1
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
=20
 Function: Imaginary part of "casin_upward":
-double: 4
-float: 4
-idouble: 4
-ifloat: 4
+double: 5
+float: 7
+idouble: 5
+ifloat: 7
=20
 Function: Real part of "casinh":
 double: 5
@@ -369,9 +369,9 @@ ifloat: 3
=20
 Function: Imaginary part of "casinh_downward":
 double: 3
-float: 1
+float: 2
 idouble: 3
-ifloat: 1
+ifloat: 2
=20
 Function: Real part of "casinh_towardzero":
 double: 5
@@ -386,19 +386,21 @@ idouble: 3
 ifloat: 1
=20
 Function: Real part of "casinh_upward":
-double: 4
-float: 4
-idouble: 4
-ifloat: 4
+double: 5
+float: 7
+idouble: 5
+ifloat: 7
=20
 Function: Imaginary part of "casinh_upward":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: Real part of "catan":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
=20
 Function: Imaginary part of "catan":
@@ -411,9 +413,9 @@ ldouble: 1
=20
 Function: Real part of "catan_downward":
 double: 1
-float: 1
+float: 2
 idouble: 1
-ifloat: 1
+ifloat: 2
=20
 Function: Imaginary part of "catan_downward":
 double: 2
@@ -423,15 +425,15 @@ ifloat: 2
=20
 Function: Real part of "catan_towardzero":
 double: 1
-float: 1
+float: 2
 idouble: 1
-ifloat: 1
+ifloat: 2
=20
 Function: Imaginary part of "catan_towardzero":
 double: 2
-float: 1
+float: 2
 idouble: 2
-ifloat: 1
+ifloat: 2
=20
 Function: Real part of "catan_upward":
 double: 1
@@ -454,7 +456,9 @@ ildouble: 4
 ldouble: 4
=20
 Function: Imaginary part of "catanh":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
=20
 Function: Real part of "catanh_downward":
@@ -471,9 +475,9 @@ ifloat: 2
=20
 Function: Real part of "catanh_towardzero":
 double: 2
-float: 1
+float: 2
 idouble: 2
-ifloat: 1
+ifloat: 2
=20
 Function: Imaginary part of "catanh_towardzero":
 double: 1
@@ -483,9 +487,9 @@ ifloat: 2
=20
 Function: Real part of "catanh_upward":
 double: 4
-float: 3
+float: 4
 idouble: 4
-ifloat: 3
+ifloat: 4
=20
 Function: Imaginary part of "catanh_upward":
 double: 1
diff --git a/sysdeps/hppa/nptl/bits/pthreadtypes.h =
b/sysdeps/hppa/nptl/bits/pthreadtypes.h
index e37111a2f3..4f742bfaa6 100644
--- a/sysdeps/hppa/nptl/bits/pthreadtypes.h
+++ b/sysdeps/hppa/nptl/bits/pthreadtypes.h
@@ -103,39 +103,32 @@ typedef union
   long int __align;
 } pthread_mutexattr_t;
=20
-
-/* Data structure for conditional variable handling.  The structure of
-   the attribute type is not exposed on purpose. However, this =
structure
-   is exposed via PTHREAD_COND_INITIALIZER, and because of this, the
-   Linuxthreads version sets the first four ints to one. In the NPTL
-   version we must check, in every function using pthread_cond_t,
-   for the static Linuxthreads initializer and clear the appropriate
-   words. */
+/* Data structure for conditional variable handling. */
 typedef union
 {
   struct
   {
-    /* In the old Linuxthreads pthread_cond_t, this is the
-       start of the 4-word lock structure, the next four words
-       are set all to 1 by the Linuxthreads
-       PTHREAD_COND_INITIALIZER.  */
-    int __lock __attribute__ ((__aligned__(16)));
-    /* Tracks the initialization of this structure:
-       0  initialized with NPTL PTHREAD_COND_INITIALIZER.
-       1  initialized with Linuxthreads PTHREAD_COND_INITIALIZER.
-       2  initialization in progress.  */
-    int __initializer;
-    unsigned int __futex;
-    void *__mutex;
-    /* In the old Linuxthreads this would have been the start
-       of the pthread_fastlock status word.  */
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-    /* The NPTL pthread_cond_t is exactly the same size as
-       the Linuxthreads version, there are no words to spare.  */
+    __extension__ union
+    {
+      __extension__ unsigned long long int __wseq;
+      struct {
+	unsigned int __low;
+	unsigned int __high;
+      } __wseq32;
+    } __attribute__ ((__aligned__(16)));
+    __extension__ union
+    {
+      __extension__ unsigned long long int __g1_start;
+      struct {
+	unsigned int __low;
+        unsigned int __high;
+      } __g1_start32;
+    };
+    unsigned int __g_refs[2];
+    unsigned int __g_size[2];
+    unsigned int __g1_orig_size;
+    unsigned int __wrefs;
+    unsigned int __g_signals[2];
   } __data;
   char __size[__SIZEOF_PTHREAD_COND_T];
   __extension__ long long int __align;
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/shm.h =
b/sysdeps/unix/sysv/linux/hppa/bits/shm.h
index 794f0ab2da..52632d0dea 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/shm.h
@@ -37,7 +37,7 @@
 #define SHM_UNLOCK	12		/* unlock segment (root only) */
=20
 /* Segment low boundary address multiple.  */
-#define SHMLBA 0x00400000		/* address needs to be 4 Mb =
aligned */
+#define SHMLBA		(__getpagesize ())
=20
 /* Type to count number of attaches.  */
 typedef unsigned long int shmatt_t;
diff --git a/sysdeps/unix/sysv/linux/hppa/clone.S =
b/sysdeps/unix/sysv/linux/hppa/clone.S
index d36b302199..46ee6972d3 100644
--- a/sysdeps/unix/sysv/linux/hppa/clone.S
+++ b/sysdeps/unix/sysv/linux/hppa/clone.S
@@ -64,9 +64,12 @@
 ENTRY(__clone)
 	/* Prologue */
 	stwm	%r4, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 4, 0
 	stw	%sp, -4(%sp)
 #ifdef PIC
 	stw	%r19, -32(%sp)
+	.cfi_offset 19, 32
 #endif
=20
 	/* Sanity check arguments.  */
diff --git a/sysdeps/unix/sysv/linux/hppa/getcontext.S =
b/sysdeps/unix/sysv/linux/hppa/getcontext.S
index 6f52f2149d..68a74a0b7e 100644
--- a/sysdeps/unix/sysv/linux/hppa/getcontext.S
+++ b/sysdeps/unix/sysv/linux/hppa/getcontext.S
@@ -130,8 +130,11 @@ ENTRY(__getcontext)
=20
 	/* Prologue */
 	stwm	%r4, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 4, 0
 #ifdef PIC
 	stw	%r19, -32(%sp)
+	.cfi_offset 19, 32
 #endif
=20
 	/* Set up the trampoline registers.
@@ -156,7 +159,7 @@ ENTRY(__getcontext)
 	/* Epilogue */
 	ldw	-84(%sp), %r2
 #ifdef PIC
-	ldw	-96(%sp), %r19
+	ldw	-32(%sp), %r19
 #endif
 	bv	%r0(%r2)
 	ldwm	-64(%sp), %r4
diff --git a/sysdeps/unix/sysv/linux/hppa/internaltypes.h =
b/sysdeps/unix/sysv/linux/hppa/internaltypes.h
deleted file mode 100644
index d6496579da..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/internaltypes.h
+++ /dev/null
@@ -1,84 +0,0 @@
-#include_next <internaltypes.h>
-#ifndef _INTERNAL_TYPES_H_HPPA_
-#define _INTERNAL_TYPES_H_HPPA_ 1
-#include <atomic.h>
-
-/* In GLIBC 2.10 HPPA switched from Linuxthreads to NPTL, and in order
-to maintain ABI compatibility with pthread_cond_t, some care had to be
-taken.
-
-The NPTL pthread_cond_t grew in size. When HPPA switched to NPTL, we
-dropped the use of ldcw, and switched to the kernel helper routine for
-compare-and-swap.  This allowed HPPA to use the 4-word 16-byte aligned
-lock words, and alignment words to store the additional pthread_cond_t
-data. Once organized properly the new NPTL pthread_cond_t was 1 word
-smaller than the Linuxthreads version.
-
-However, we were faced with the case that users may have initialized =
the
-pthread_cond_t with PTHREAD_COND_INITIALIZER. In this case, the first
-four words were set to one, and must be cleared before any NPTL code
-used these words.
-
-We didn't want to use LDCW, because it continues to be a source of bugs
-when applications memset pthread_cond_t to all zeroes by accident. This
-works on all other architectures where lock words are unlocked at zero.
-Remember that because of the semantics of LDCW, a locked word is set to
-zero, and an unlocked word is set to 1.
-
-Instead we used atomic_compare_and_exchange_val_acq, but we couldn't =
use
-this on any of the pthread_cond_t words, otherwise it might interfere
-with the current operation of the structure. To solve this problem we
-used the left over word.
-
-If the stucture was initialized by a legacy Linuxthread
-PTHREAD_COND_INITIALIZER it contained a 1, and this indicates that the
-structure requires zeroing for NPTL. The first thread to come upon a
-pthread_cond_t with a 1 in the __initializer field, will
-compare-and-swap the value, placing a 2 there which will cause all =
other
-threads using the same pthread_cond_t to wait for the completion of the
-initialization. Lastly, we use a store (with memory barrier) to change
-__initializer from 2 to 0. Note that the store is strongly ordered, but
-we use the PA 1.1 compatible form which is ",ma" with zero offset.
-
-In the future, when the application is recompiled with NPTL
-PTHREAD_COND_INITIALIZER it will be a quick compare-and-swap, which
-fails because __initializer is zero, and the structure will be used as
-is correctly.  */
-
-#define cond_compat_clear(var) \
-({									=
\
-  int tmp =3D 0;								=
\
-  var->__data.__wseq =3D 0;						=
\
-  var->__data.__signals_sent =3D 0;					=
\
-  var->__data.__confirmed =3D 0;						=
\
-  var->__data.__generation =3D 0;						=
\
-  var->__data.__mutex =3D NULL;						=
\
-  var->__data.__quiescence_waiters =3D 0;					=
\
-  var->__data.__clockid =3D 0;						=
\
-  /* Clear __initializer last, to indicate initialization is done.  */	=
\
-  /* This synchronizes-with the acquire load below.  */			=
\
-  atomic_store_release (&var->__data.__initializer, 0);			=
\
-})
-
-#define cond_compat_check_and_clear(var) \
-({								\
-  int v;							\
-  int *value =3D &var->__data.__initializer;			\
-  /* This synchronizes-with the release store above.  */	\
-  while ((v =3D atomic_load_acquire (value)) !=3D 0)		\
-    {								\
-      if (v =3D=3D 1						\
-	  /* Relaxed MO is fine; it only matters who's first.  */        =
\
-	  && atomic_compare_exchange_acquire_weak_relaxed (value, 1, 2)) =
\
-	{							\
-	  /* We're first; initialize structure.  */		\
-	  cond_compat_clear (var);				\
-	  break;						\
-	}							\
-      else							\
-	/* Yield before we re-check initialization status.  */	\
-	sched_yield ();						\
-    }								\
-})
-
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pt-vfork.S =
b/sysdeps/unix/sysv/linux/hppa/pt-vfork.S
index fc4573c86b..8b7d7df2fe 100644
--- a/sysdeps/unix/sysv/linux/hppa/pt-vfork.S
+++ b/sysdeps/unix/sysv/linux/hppa/pt-vfork.S
@@ -58,7 +58,10 @@ ENTRY(__vfork)
 	   that there is no child now, so it's safe to create
 	   a frame.  */
 	stw	%rp, -20(%sp)
+	.cfi_offset 2, -20
 	stwm	%r3, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 3, 0
 	stw	%sp, -4(%sp)
=20
 	sub	%r0,%ret0,%r3
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread.h =
b/sysdeps/unix/sysv/linux/hppa/pthread.h
index ac617201d2..d3b960edd4 100644
--- a/sysdeps/unix/sysv/linux/hppa/pthread.h
+++ b/sysdeps/unix/sysv/linux/hppa/pthread.h
@@ -185,7 +185,7 @@ enum
=20
=20
 /* Conditional variable handling.  */
-#define PTHREAD_COND_INITIALIZER { { 0, 0, 0, 0, 0, (void *) 0, 0, 0 } =
}
+#define PTHREAD_COND_INITIALIZER { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, =
{0, 0} } }
=20
=20
 /* Cleanup buffers */
@@ -1165,12 +1165,6 @@ __END_DECLS
 #ifndef _PTHREAD_H_HPPA_
 #define _PTHREAD_H_HPPA_ 1
=20
-/* The pthread_cond_t initializer is compatible only with NPTL. We do =
not
-   want to be forwards compatible, we eventually want to drop the code
-   that has to clear the old LT initializer.  */
-#undef PTHREAD_COND_INITIALIZER
-#define PTHREAD_COND_INITIALIZER { { 0, 0, 0, (void *) 0, 0, 0, 0, 0, 0 =
} }
-
 /* The pthread_mutex_t and pthread_rwlock_t initializers are compatible
    only with NPTL. NPTL assumes pthread_rwlock_t is all zero.  */
 #undef PTHREAD_MUTEX_INITIALIZER
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c
deleted file mode 100644
index a6f9f5d433..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_broadcast.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_broadcast (pthread_cond_t *cond)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_broadcast_internal (cond);
-}
-versioned_symbol (libpthread, __pthread_cond_broadcast, =
pthread_cond_broadcast,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_broadcast
-# define __pthread_cond_broadcast __pthread_cond_broadcast_internal
-# include_next <pthread_cond_broadcast.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c
deleted file mode 100644
index 49af087bb4..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_destroy.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_destroy (pthread_cond_t *cond)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_destroy_internal (cond);
-}
-versioned_symbol (libpthread, __pthread_cond_destroy, =
pthread_cond_destroy,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_destroy
-# define __pthread_cond_destroy __pthread_cond_destroy_internal
-# include_next <pthread_cond_destroy.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c
deleted file mode 100644
index ccb3de07ff..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_init.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_init (pthread_cond_t *cond, const pthread_condattr_t =
*cond_attr)
-{
-  cond_compat_clear (cond);
-  return __pthread_cond_init_internal (cond, cond_attr);
-}
-versioned_symbol (libpthread, __pthread_cond_init, pthread_cond_init,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_init
-# define __pthread_cond_init __pthread_cond_init_internal
-# include_next <pthread_cond_init.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c
deleted file mode 100644
index 2bf32af933..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_signal.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_signal (pthread_cond_t *cond)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_signal_internal (cond);
-}
-versioned_symbol (libpthread, __pthread_cond_signal, =
pthread_cond_signal,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_signal
-# define __pthread_cond_signal __pthread_cond_signal_internal
-# include_next <pthread_cond_signal.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c
deleted file mode 100644
index 1cc2fc15d4..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_wait.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_wait_internal (cond, mutex);
-}
-versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait,
-                  GLIBC_2_3_2);
-int
-__pthread_cond_timedwait (cond, mutex, abstime)
-     pthread_cond_t *cond;
-     pthread_mutex_t *mutex;
-     const struct timespec *abstime;
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_timedwait_internal (cond, mutex, abstime);
-}
-versioned_symbol (libpthread, __pthread_cond_timedwait, =
pthread_cond_timedwait,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_wait
-# define __pthread_cond_wait __pthread_cond_wait_internal
-# undef __pthread_cond_timedwait
-# define __pthread_cond_timedwait __pthread_cond_timedwait_internal
-# include_next <pthread_cond_wait.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/setcontext.S =
b/sysdeps/unix/sysv/linux/hppa/setcontext.S
index 3f4da7938f..92cb204f8d 100644
--- a/sysdeps/unix/sysv/linux/hppa/setcontext.S
+++ b/sysdeps/unix/sysv/linux/hppa/setcontext.S
@@ -26,8 +26,11 @@
 ENTRY(__setcontext)
 	/* Prologue */
 	stwm	%r3, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 3, 0
 #ifdef PIC
 	stw	%r19, -32(%sp)
+	.cfi_offset 19, 32
 #endif
=20
 	/* Save ucp.  */
@@ -141,7 +144,7 @@ ENTRY(__setcontext)
=20
 	/* No further context available. Exit now.  */
 	bl	HIDDEN_JUMPTARGET(exit), %r2
-	ldi	-1, %r26
+	ldi	0, %r26
=20
=20
 .Lerror:
diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h =
b/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
index 5ea297267f..8b7f2b2095 100644
--- a/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
+++ b/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
@@ -62,12 +62,11 @@
 	ENTRY (__##syscall_name##_nocancel)				=
\
 	DOARGS_##args					ASM_LINE_SEP	=
\
 	stwm TREG, 64(%sp)				ASM_LINE_SEP	=
\
+	.cfi_def_cfa_offset -64				ASM_LINE_SEP	=
\
 	.cfi_offset TREG, 0				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	=
\
 	stw %sp, -4(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 30, -4				ASM_LINE_SEP	=
\
 	stw %r19, -32(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 19, -32				ASM_LINE_SEP	=
\
+	.cfi_offset 19, 32				ASM_LINE_SEP	=
\
 	/* Save r19 */					ASM_LINE_SEP	=
\
 	SAVE_PIC(TREG)					ASM_LINE_SEP	=
\
 	/* Do syscall, delay loads # */			ASM_LINE_SEP	=
\
@@ -91,21 +90,19 @@ L(pre_nc_end):						=
ASM_LINE_SEP	\
 	/* No need to LOAD_PIC */			ASM_LINE_SEP	=
\
 	/* Undo frame */				ASM_LINE_SEP	=
\
 	ldwm -64(%sp),TREG				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	=
\
 	/* Restore rp before exit */			ASM_LINE_SEP	=
\
 	ldw -20(%sp), %rp				ASM_LINE_SEP	=
\
-	.cfi_restore 2					ASM_LINE_SEP	=
\
 	ret						ASM_LINE_SEP	=
\
 	END(__##syscall_name##_nocancel)		ASM_LINE_SEP	=
\
 	/**********************************************/ASM_LINE_SEP	=
\
 	ENTRY (name)							=
\
 	DOARGS_##args					ASM_LINE_SEP	=
\
 	stwm TREG, 64(%sp)				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	=
\
+	.cfi_def_cfa_offset -64				ASM_LINE_SEP	=
\
+	.cfi_offset TREG, 0				ASM_LINE_SEP	=
\
 	stw %sp, -4(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 30, -4				ASM_LINE_SEP	=
\
 	stw %r19, -32(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 19, -32				ASM_LINE_SEP	=
\
+	.cfi_offset 19, 32				ASM_LINE_SEP	=
\
 	/* Done setting up frame, continue... */	ASM_LINE_SEP	=
\
 	SINGLE_THREAD_P					ASM_LINE_SEP	=
\
 	cmpib,<>,n 0,%ret0,L(pseudo_cancel)		ASM_LINE_SEP	=
\
@@ -168,40 +165,32 @@ L(pre_end):						=
ASM_LINE_SEP	\
 	/* No need to LOAD_PIC */			ASM_LINE_SEP	=
\
 	/* Undo frame */				ASM_LINE_SEP	=
\
 	ldwm -64(%sp),TREG				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	=
\
 	/* Restore rp before exit */			ASM_LINE_SEP	=
\
-	ldw -20(%sp), %rp				ASM_LINE_SEP	=
\
-	.cfi_restore 2					ASM_LINE_SEP
+	ldw -20(%sp), %rp				ASM_LINE_SEP
=20
 /* Save arguments into our frame */
 # define PUSHARGS_0	/* nothing to do */
 # define PUSHARGS_1	PUSHARGS_0 stw %r26, -36(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 26, -36			=
ASM_LINE_SEP
+			.cfi_offset 26, 28			=
ASM_LINE_SEP
 # define PUSHARGS_2	PUSHARGS_1 stw %r25, -40(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 25, -40			=
ASM_LINE_SEP
+			.cfi_offset 25, 24			=
ASM_LINE_SEP
 # define PUSHARGS_3	PUSHARGS_2 stw %r24, -44(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 24, -44			=
ASM_LINE_SEP
+			.cfi_offset 24, 20			=
ASM_LINE_SEP
 # define PUSHARGS_4	PUSHARGS_3 stw %r23, -48(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 23, -48			=
ASM_LINE_SEP
+			.cfi_offset 23, 16			=
ASM_LINE_SEP
 # define PUSHARGS_5	PUSHARGS_4 stw %r22, -52(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 22, -52			=
ASM_LINE_SEP
+			.cfi_offset 22, 12			=
ASM_LINE_SEP
 # define PUSHARGS_6	PUSHARGS_5 stw %r21, -56(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 21, -56			=
ASM_LINE_SEP
+			.cfi_offset 21, 8			=
ASM_LINE_SEP
=20
 /* Bring them back from the stack */
 # define POPARGS_0	/* nothing to do */
-# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	=
ASM_LINE_SEP	\
-			.cfi_restore 26				=
ASM_LINE_SEP
-# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	=
ASM_LINE_SEP	\
-			.cfi_restore 25				=
ASM_LINE_SEP
-# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	=
ASM_LINE_SEP	\
-			.cfi_restore 24				=
ASM_LINE_SEP
-# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	=
ASM_LINE_SEP	\
-			.cfi_restore 23				=
ASM_LINE_SEP
-# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	=
ASM_LINE_SEP	\
-			.cfi_restore 22				=
ASM_LINE_SEP
-# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	=
ASM_LINE_SEP	\
-			.cfi_restore 21				=
ASM_LINE_SEP
+# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	=
ASM_LINE_SEP
+# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	=
ASM_LINE_SEP
+# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	=
ASM_LINE_SEP
+# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	=
ASM_LINE_SEP
+# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	=
ASM_LINE_SEP
+# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	=
ASM_LINE_SEP
=20
 # if IS_IN (libpthread)
 #  ifdef PIC
diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep.h =
b/sysdeps/unix/sysv/linux/hppa/sysdep.h
index d8dd0431a4..c0cd59e9f5 100644
--- a/sysdeps/unix/sysv/linux/hppa/sysdep.h
+++ b/sysdeps/unix/sysv/linux/hppa/sysdep.h
@@ -49,11 +49,9 @@
    to another function */
 #define TREG 4
 #define SAVE_PIC(SREG) \
-	copy %r19, SREG ASM_LINE_SEP	\
-	.cfi_register 19, SREG
+	copy %r19, SREG
 #define LOAD_PIC(LREG) \
-	copy LREG , %r19 ASM_LINE_SEP	\
-	.cfi_restore 19
+	copy LREG , %r19
 /* Inline assembly defines */
 #define TREG_ASM "%r4" /* Cant clobber r3, it holds framemarker */
 #define SAVE_ASM_PIC	"       copy %%r19, %" TREG_ASM "\n"
@@ -292,12 +290,11 @@
 #define DO_CALL(syscall_name, args)				\
 	/* Create a frame */			ASM_LINE_SEP	\
 	stwm TREG, 64(%sp)			ASM_LINE_SEP	\
+	.cfi_def_cfa_offset -64			ASM_LINE_SEP	\
 	.cfi_offset TREG, 0			ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset 64		ASM_LINE_SEP	\
 	stw %sp, -4(%sp)			ASM_LINE_SEP	\
-	.cfi_offset 30, -4			ASM_LINE_SEP	\
 	stw %r19, -32(%sp)			ASM_LINE_SEP	\
-	.cfi_offset 19, -32			ASM_LINE_SEP	\
+	.cfi_offset 19, 32			ASM_LINE_SEP	\
 	/* Save r19 */				ASM_LINE_SEP	\
 	SAVE_PIC(TREG)				ASM_LINE_SEP	\
 	/* Do syscall, delay loads # */		ASM_LINE_SEP	\
@@ -320,10 +317,8 @@
 L(pre_end):					ASM_LINE_SEP	\
 	/* Restore our frame, restoring TREG */	ASM_LINE_SEP	\
 	ldwm -64(%sp), TREG			ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset -64		ASM_LINE_SEP	\
 	/* Restore return pointer */		ASM_LINE_SEP	\
-	ldw -20(%sp),%rp			ASM_LINE_SEP	\
-	.cfi_restore 2				ASM_LINE_SEP
+	ldw -20(%sp),%rp			ASM_LINE_SEP
=20
 /* We do nothing with the return, except hand it back to someone else =
*/
 #undef  DO_CALL_NOERRNO

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From - Thu Nov 08 21:39:48 2018
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How are you today and your family? I require your attention and honest
co-operation about some issues which i will really want to discuss with you
which.  Looking forward to read from you soon.  

Qin's


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From - Thu Nov 08 21:39:48 2018
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--Apple-Mail-6-356281441
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On 2017-04-05, at 7:03 PM, John David Anglin wrote:

> Attached is my latest patch for glibc trunk on hppa.  =
sysdeps/hppa/fpu/libm-test-ulps is updated with new
> ulps values.  sysdeps/hppa/dl-fptr.c b/sysdeps/hppa/dl-fptr.c is =
updated because define for ALIGN_UP
> moved.

Latest patch set adds v3 version of pthread_cond_t patch and fixes =
nptl/tst-typesizes.

Dave
--
John David Anglin	dave.anglin@bell.net



--Apple-Mail-6-356281441
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	filename=glibc-20170410.d.txt
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	name="glibc-20170410.d.txt"
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diff --git a/elf/Makefile b/elf/Makefile
index cc4aeb25b6..883dd8f013 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -543,7 +543,7 @@ CFLAGS-ldconfig.c =3D $(SYSCONF-FLAGS) =
-D'LIBDIR=3D"$(libdir)"' \
 libof-ldconfig =3D ldconfig
 CFLAGS-dl-cache.c =3D $(SYSCONF-FLAGS)
 CFLAGS-cache.c =3D $(SYSCONF-FLAGS)
-CFLAGS-rtld.c =3D $(SYSCONF-FLAGS)
+CFLAGS-rtld.c +=3D $(SYSCONF-FLAGS)
=20
 cpp-srcs-left :=3D $(all-rtld-routines:=3D.os)
 lib :=3D rtld
diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c
index e5c5f79a82..085ae07b32 100644
--- a/nptl/allocatestack.c
+++ b/nptl/allocatestack.c
@@ -647,9 +647,13 @@ allocate_stack (const struct pthread_attr *attr, =
struct pthread **pdp,
 			prot) !=3D 0)
 	    goto mprot_error;
 #elif _STACK_GROWS_UP
-	  if (mprotect ((char *) pd - pd->guardsize,
-			pd->guardsize - guardsize, prot) !=3D 0)
-	    goto mprot_error;
+	  char *new_guard =3D (char *) (((uintptr_t) pd - guardsize) & =
~pagesize_m1);
+	  char *old_guard =3D (char *) (((uintptr_t) pd - pd->guardsize) =
& ~pagesize_m1);
+	  /* The guard size difference might be > 0, but once rounded
+	     to the nearest page the size difference might be zero.  */
+	  if (old_guard - new_guard > 0)
+	    if (mprotect (old_guard, new_guard - old_guard, prot) !=3D =
0)
+	      goto mprot_error;
 #endif
=20
 	  pd->guardsize =3D guardsize;
diff --git a/resolv/res_mkquery.c b/resolv/res_mkquery.c
index 4532b582a2..19a6d82b96 100644
--- a/resolv/res_mkquery.c
+++ b/resolv/res_mkquery.c
@@ -83,6 +83,15 @@
 # define RANDOM_BITS(Var) { uint64_t v64; HP_TIMING_NOW (v64); Var =3D =
v64; }
 #endif
=20
+/* The structure HEADER is normally aligned to a word boundary and its
+   fields are accessed using word loads and stores.  We need to access
+   this structure when it is aligned on a byte boundary.  This can =
cause
+   problems on machines with strict alignment.  So, we create a new
+   typedef to reduce its alignment to one.  This ensures the fields are
+   accessed with byte loads and stores.  */
+typedef HEADER __attribute__ ((__aligned__(1))) UHEADER;
+#define HEADER UHEADER
+
 /*
  * Form all types of queries.
  * Returns the size of the result or -1.
diff --git a/resolv/res_query.c b/resolv/res_query.c
index 07dc6f6583..9a1a8f90d1 100644
--- a/resolv/res_query.c
+++ b/resolv/res_query.c
@@ -78,6 +78,14 @@
 #include <stdlib.h>
 #include <string.h>
=20
+/* The structure HEADER is normally aligned to a word boundary and its
+   fields are accessed using word loads and stores.  We need to access=20=

+   this structure when it is aligned on a byte boundary.  This can =
cause
+   problems on machines with strict alignment.  So, we create a new
+   typedef to reduce its alignment to one.  This ensures the fields are
+   accessed with byte loads and stores.  */
+typedef HEADER __attribute__ ((__aligned__(1))) UHEADER;
+
 /* Options.  Leave them on. */
 /* #undef DEBUG */
=20
@@ -117,8 +125,8 @@ __libc_res_nquery(res_state statp,
 		  int *resplen2,
 		  int *answerp2_malloced)
 {
-	HEADER *hp =3D (HEADER *) answer;
-	HEADER *hp2;
+	UHEADER *hp =3D (UHEADER *) answer;
+	UHEADER *hp2;
 	int n, use_malloc =3D 0;
 	u_int oflags =3D statp->_flags;
=20
@@ -235,7 +243,7 @@ __libc_res_nquery(res_state statp,
=20
 	if (answerp !=3D NULL)
 	  /* __libc_res_nsend might have reallocated the buffer.  */
-	  hp =3D (HEADER *) *answerp;
+	  hp =3D (UHEADER *) *answerp;
=20
 	/* We simplify the following tests by assigning HP to HP2 or
 	   vice versa.  It is easy to verify that this is the same as
@@ -246,7 +254,7 @@ __libc_res_nquery(res_state statp,
 	  }
 	else
 	  {
-	    hp2 =3D (HEADER *) *answerp2;
+	    hp2 =3D (UHEADER *) *answerp2;
 	    if (n < (int) sizeof (HEADER))
 	      {
 	        hp =3D hp2;
@@ -336,7 +344,7 @@ __libc_res_nsearch(res_state statp,
 		   int *answerp2_malloced)
 {
 	const char *cp, * const *domain;
-	HEADER *hp =3D (HEADER *) answer;
+	UHEADER *hp =3D (UHEADER *) answer;
 	char tmp[NS_MAXDNAME];
 	u_int dots;
 	int trailing_dot, ret, saved_herrno;
diff --git a/resolv/res_send.c b/resolv/res_send.c
index 28c4cabfcb..19f9a86a2b 100644
--- a/resolv/res_send.c
+++ b/resolv/res_send.c
@@ -110,6 +110,15 @@
 #include <kernel-features.h>
 #include <libc-diag.h>
=20
+/* The structure HEADER is normally aligned to a word boundary and its
+   fields are accessed using word loads and stores.  We need to access=20=

+   this structure when it is aligned on a byte boundary.  This can =
cause
+   problems on machines with strict alignment.  So, we create a new
+   typedef to reduce its alignment to one.  This ensures the fields are
+   accessed with byte loads and stores.  */
+typedef HEADER __attribute__ ((__aligned__(1))) UHEADER;
+#define HEADER UHEADER
+
 #if PACKETSZ > 65536
 #define MAXPACKET       PACKETSZ
 #else
diff --git a/sysdeps/hppa/Makefile b/sysdeps/hppa/Makefile
index c0edb99917..64af43b5ff 100644
--- a/sysdeps/hppa/Makefile
+++ b/sysdeps/hppa/Makefile
@@ -23,6 +23,7 @@ LDFLAGS-c_pic.os +=3D -Wl,--unique=3D.text*
=20
 ifeq ($(subdir),elf)
 CFLAGS-rtld.c +=3D -mdisable-fpregs
+CFLAGS-dl-reloc.c +=3D --param inline-unit-growth=3D100
 sysdep-dl-routines +=3D dl-symaddr dl-fptr
 # dl-fptr.c needs a complete rewrite to fix ISO C aliasing violations.
 CFLAGS-dl-fptr.c =3D -Wno-error
diff --git a/sysdeps/hppa/__longjmp.c b/sysdeps/hppa/__longjmp.c
index a7eefc7ad6..438db01473 100644
--- a/sysdeps/hppa/__longjmp.c
+++ b/sysdeps/hppa/__longjmp.c
@@ -24,15 +24,16 @@
 void
 __longjmp (__jmp_buf env, int val)
 {
+#ifdef CHECK_SP
+  CHECK_SP (env[0].__jmp_buf.__sp);
+#endif
+
+  {
   /* We must use one of the non-callee saves registers
      for env.  */
   register unsigned long r26 asm ("r26") =3D (unsigned long)&env[0];
   register unsigned long r25 asm ("r25") =3D (unsigned long)(val =3D=3D =
0 ? 1 : val);
=20
-#ifdef CHECK_SP
-  CHECK_SP (env[0].__jmp_buf.__sp);
-#endif
-
   asm volatile(
 	/* Set return value.  */
 	"copy	%0, %%r28\n\t"
@@ -79,6 +80,8 @@ __longjmp (__jmp_buf env, int val)
 	: /* No outputs.  */
 	: "r" (r25), "r" (r26)
 	: /* No point in clobbers.  */ );
+  }
+
   /* Avoid `volatile function does return' warnings.  */
   for (;;);
 }
diff --git a/sysdeps/hppa/crti.S b/sysdeps/hppa/crti.S
index 7c1470ddf8..0f9bb7b013 100644
--- a/sysdeps/hppa/crti.S
+++ b/sysdeps/hppa/crti.S
@@ -49,6 +49,95 @@
 # define PREINIT_FUNCTION_WEAK 1
 #endif
=20
+#if PREINIT_FUNCTION_WEAK
+	weak_extern (PREINIT_FUNCTION)
+#else
+	.hidden PREINIT_FUNCTION
+#endif
+
+
+/* If we have working .init_array support, we want to keep the .init
+   section empty (apart from the mandatory prologue/epilogue.  This
+   ensures that the default unwind conventions (return-pointer in b0,
+   frame state in ar.pfs, etc.)  will do the Right Thing.  To ensure
+   an empty .init section, we register gmon_initializer() via the
+   .init_array.
+
+    --davidm 02/10/29 */
+
+#if PREINIT_FUNCTION_WEAK
+/* This blob of assembly code is one simple C function:
+
+static void
+__attribute__ ((used))
+gmon_initializer (void)
+{
+  extern void weak_function __gmon_start__ (void);
+
+  if (__gmon_start__)
+    (*__gmon_start__)();
+}
+
+In a final executable, PLABEL32 relocations for function pointers are
+resolved at link time.  Typically, binutils/ld resolves __gmon_start__
+using an external shared library.  __gmon_start__ is always called if
+it is found at link time.  If __gmon_start__ is not found at runtime
+due to a library update, then the function pointer will point at a null
+function descriptor and calling it will cause a segmentation fault.
+So, we call __canonicalize_funcptr_for_compare to obtain the =
canonicalized
+address of __gmon_start__ and skip calling __gmon_start__ if it is =
zero.
+
+ */
+	.type __canonicalize_funcptr_for_compare,@function
+	.type $$dyncall,@function
+
+	.section .data.rel.ro,"aw",@progbits
+	.align 4
+.LC0:
+	.type __gmon_start__,@function
+	.word P%__gmon_start__
+
+	.text
+	.align 4
+	.type gmon_initializer,@function
+gmon_initializer:
+	.PROC
+	.CALLINFO FRAME=3D64,CALLS,SAVE_RP,ENTRY_GR=3D4
+	.ENTRY
+	stw %r2,-20(%r30)
+	stwm %r4,64(%r30)
+	stw %r3,-60(%r30)
+	addil LT'.LC0,%r19
+	ldw RT'.LC0(%r1),%r28
+	ldw 0(%r28),%r3
+	comib,=3D 0,%r3,1f
+	copy %r19,%r4
+	stw %r19,-32(%r30)
+	bl __canonicalize_funcptr_for_compare,%r2
+	copy %r3,%r26
+	comib,=3D 0,%r28,1f
+	copy %r4,%r19
+	copy %r3,%r22
+	.CALL ARGW0=3DGR
+	bl $$dyncall,%r31
+	copy %r31,%r2
+1:
+	ldw -84(%r30),%r2
+	ldw -60(%r30),%r3
+	bv %r0(%r2)
+	ldwm -64(%r30),%r4
+	.EXIT
+	.PROCEND
+	.size gmon_initializer, .-gmon_initializer
+
+# undef PREINIT_FUNCTION
+# define PREINIT_FUNCTION gmon_initializer
+#endif
+
+	.section .init_array, "aw"
+	.word P% PREINIT_FUNCTION
+
+
 /* _init prologue.  */
 	.section .init, "ax", %progbits
 	.align 4
@@ -58,14 +147,6 @@ _init:
 	stw	%rp,-20(%sp)
 	stwm	%r4,64(%sp)
 	stw	%r19,-32(%sp)
-#if PREINIT_FUNCTION_WEAK
-	bl	PREINIT_FUNCTION,%rp
-	copy	%r19,%r4	/* delay slot */
-#else
-	bl	PREINIT_FUNCTION,%rp
-	copy	%r19,%r4	/* delay slot */
-#endif
-	copy	%r4,%r19
=20
 /* _fini prologue.  */
         .section .fini,"ax",%progbits
diff --git a/sysdeps/hppa/crtn.S b/sysdeps/hppa/crtn.S
index 42f310d217..49666b81f9 100644
--- a/sysdeps/hppa/crtn.S
+++ b/sysdeps/hppa/crtn.S
@@ -38,27 +38,6 @@
 /* crtn.S puts function epilogues in the .init and .fini sections
    corresponding to the prologues in crti.S. */
=20
-/* Note that we cannot have a weak undefined __gmon_start__, because
-   that would require this to be PIC, and the linker is currently not
-   able to generate a proper procedure descriptor for _init.  Sad but
-   true.  Anyway, HPPA is one of those horrible architectures where
-   making the comparison and indirect call is quite expensive (see the
-   comment in sysdeps/generic/initfini.c). */
-        .text
-        .align 4
-        .weak   __gmon_start__
-        .type    __gmon_start__,@function
-__gmon_start__:
-	.proc
-	.callinfo
-	.entry
-        bv,n %r0(%r2)
-	.exit
-	.procend
-
-/* Here is the tail end of _init.  We put __gmon_start before this so
-   that the assembler creates the .PARISC.unwind section for us, ie.
-   with the right attributes.  */
 	.section .init, "ax", @progbits
 	ldw	-84(%sp),%rp
 	copy	%r4,%r19
diff --git a/sysdeps/hppa/dl-fptr.c b/sysdeps/hppa/dl-fptr.c
index 83bdb91202..96fd09d192 100644
--- a/sysdeps/hppa/dl-fptr.c
+++ b/sysdeps/hppa/dl-fptr.c
@@ -28,6 +28,7 @@
 #include <dl-fptr.h>
 #include <dl-unmap-segments.h>
 #include <atomic.h>
+#include <libc-pointer-arith.h>
=20
 #ifndef ELF_MACHINE_BOOT_FPTR_TABLE_LEN
 /* ELF_MACHINE_BOOT_FPTR_TABLE_LEN should be greater than the number of
@@ -181,24 +182,29 @@ make_fdesc (ElfW(Addr) ip, ElfW(Addr) gp)
 static inline ElfW(Addr) * __attribute__ ((always_inline))
 make_fptr_table (struct link_map *map)
 {
-  const ElfW(Sym) *symtab
-    =3D (const void *) D_PTR (map, l_info[DT_SYMTAB]);
+  const ElfW(Sym) *symtab =3D (const void *) D_PTR (map, =
l_info[DT_SYMTAB]);
   const char *strtab =3D (const void *) D_PTR (map, l_info[DT_STRTAB]);
   ElfW(Addr) *fptr_table;
   size_t size;
   size_t len;
+  const ElfW(Sym) *symtabend;
=20
-  /* XXX Apparently the only way to find out the size of the dynamic
-     symbol section is to assume that the string table follows right
-     afterwards...  */
-  len =3D ((strtab - (char *) symtab)
+  /* Determine the end of the dynamic symbol table using the hash.  */
+  if (map->l_info[DT_HASH] !=3D NULL)
+    symtabend =3D (symtab + ((Elf_Symndx *) D_PTR (map, =
l_info[DT_HASH]))[1]);
+  else
+  /* There is no direct way to determine the number of symbols in the
+     dynamic symbol table and no hash table is present.  The ELF
+     binary is ill-formed but what shall we do?  Use the beginning of
+     the string table which generally follows the symbol table.  */
+    symtabend =3D (const ElfW(Sym) *) strtab;
+
+  len =3D (((char *) symtabend - (char *) symtab)
 	 / map->l_info[DT_SYMENT]->d_un.d_val);
-  size =3D ((len * sizeof (fptr_table[0]) + GLRO(dl_pagesize) - 1)
-	  & -GLRO(dl_pagesize));
-  /* XXX We don't support here in the moment systems without MAP_ANON.
-     There probably are none for IA-64.  In case this is proven wrong
-     we will have to open /dev/null here and use the file descriptor
-     instead of the hard-coded -1.  */
+  size =3D ALIGN_UP (len * sizeof (fptr_table[0]), GLRO(dl_pagesize));
+
+  /* We don't support systems without MAP_ANON.  We avoid using malloc
+     because this might get called before malloc is setup.  */
   fptr_table =3D __mmap (NULL, size,
 		       PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
 		       -1, 0);
@@ -331,22 +337,45 @@ elf_machine_resolve (void)
   return addr;
 }
=20
+static inline int
+_dl_read_access_allowed (unsigned int *addr)
+{
+  int result;
+
+  asm ("proberi	(%1),3,%0" : "=3Dr" (result) : "r" (addr) : );
+
+  return result;
+}
+
 ElfW(Addr)
 _dl_lookup_address (const void *address)
 {
   ElfW(Addr) addr =3D (ElfW(Addr)) address;
   unsigned int *desc, *gptr;
=20
-  /* Check for special cases.  */
-  if ((int) addr =3D=3D -1
-      || (unsigned int) addr < 4096
-      || !((unsigned int) addr & 2))
+  /* Return ADDR if the least-significant two bits of ADDR are not =
consistent
+     with ADDR being a linker defined function pointer.  The normal =
value for
+     a code address in a backtrace is 3.  */
+  if (((unsigned int) addr & 3) !=3D 2)
+    return addr;
+
+  /* Handle special case where ADDR points to page 0.  */
+  if ((unsigned int) addr < 4096)
     return addr;
=20
   /* Clear least-significant two bits from descriptor address.  */
   desc =3D (unsigned int *) ((unsigned int) addr & ~3);
+  if (!_dl_read_access_allowed (desc))
+    return addr;
=20
-  /* Check if descriptor requires resolution.  The following trampoline =
is
+  /* Load first word of candidate descriptor.  It should be a pointer
+     with word alignment and point to memory that can be read.  */
+  gptr =3D (unsigned int *) desc[0];
+  if (((unsigned int) gptr & 3) !=3D 0
+      || !_dl_read_access_allowed (gptr))
+    return addr;
+
+  /* See if descriptor requires resolution.  The following trampoline =
is
      used in each global offset table for function resolution:
=20
 		ldw 0(r20),r22
@@ -358,7 +387,6 @@ _dl_lookup_address (const void *address)
 		.word "_dl_runtime_resolve ltp"
      got:	.word _DYNAMIC
 		.word "struct link map address" */
-  gptr =3D (unsigned int *) desc[0];
   if (gptr[0] =3D=3D 0xea9f1fdd			/* b,l .-12,r20  =
   */
       && gptr[1] =3D=3D 0xd6801c1e			/* depwi =
0,31,2,r20 */
       && (ElfW(Addr)) gptr[2] =3D=3D elf_machine_resolve ())
diff --git a/sysdeps/hppa/dl-trampoline.S b/sysdeps/hppa/dl-trampoline.S
index 856339bffe..f1294a931f 100644
--- a/sysdeps/hppa/dl-trampoline.S
+++ b/sysdeps/hppa/dl-trampoline.S
@@ -82,6 +82,11 @@ _dl_runtime_resolve:
 	bl	_dl_fixup,%rp
 	copy	%r21,%r19		/* set fixup func ltp */
=20
+	/* Sometimes a final executable may attempt to call an undefined
+	   weak function (e.g., __gmon_start__).  Return if the function
+	   was not resolved by _dl_fixup */
+	comib,=3D	0,%r28,1f
+
 	/* Load up the returned func descriptor */
 	copy	%r28, %r22
 	copy	%r29, %r19
@@ -107,6 +112,13 @@ _dl_runtime_resolve:
 	/* Jump to new function, but return to previous function */
 	bv	%r0(%r22)
 	ldw	-20(%sp),%rp
+
+1:
+	/* Return to previous function */
+	ldw	-148(%sp),%rp
+	bv	%r0(%rp)
+	ldo	-128(%sp),%sp
+
         .EXIT
         .PROCEND
 	cfi_endproc
diff --git a/sysdeps/hppa/fpu/libm-test-ulps =
b/sysdeps/hppa/fpu/libm-test-ulps
index b5c8e7ccde..6e2058391d 100644
--- a/sysdeps/hppa/fpu/libm-test-ulps
+++ b/sysdeps/hppa/fpu/libm-test-ulps
@@ -184,15 +184,15 @@ idouble: 1
 ifloat: 2
=20
 Function: Imaginary part of "cacos":
-double: 1
+double: 2
 float: 2
-idouble: 1
+idouble: 2
 ifloat: 2
=20
 Function: Real part of "cacos_downward":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: Imaginary part of "cacos_downward":
@@ -202,9 +202,9 @@ idouble: 5
 ifloat: 3
=20
 Function: Real part of "cacos_towardzero":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: Imaginary part of "cacos_towardzero":
@@ -220,15 +220,15 @@ idouble: 2
 ifloat: 2
=20
 Function: Imaginary part of "cacos_upward":
-double: 4
-float: 4
-idouble: 4
-ifloat: 4
+double: 5
+float: 7
+idouble: 5
+ifloat: 7
=20
 Function: Real part of "cacosh":
-double: 1
+double: 2
 float: 2
-idouble: 1
+idouble: 2
 ifloat: 2
=20
 Function: Imaginary part of "cacosh":
@@ -244,10 +244,10 @@ idouble: 5
 ifloat: 3
=20
 Function: Imaginary part of "cacosh_downward":
-double: 2
-float: 2
-idouble: 2
-ifloat: 2
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
=20
 Function: Real part of "cacosh_towardzero":
 double: 5
@@ -256,9 +256,9 @@ idouble: 5
 ifloat: 3
=20
 Function: Imaginary part of "cacosh_towardzero":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: Real part of "cacosh_upward":
@@ -268,9 +268,9 @@ idouble: 4
 ifloat: 4
=20
 Function: Imaginary part of "cacosh_upward":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: "carg":
@@ -304,16 +304,16 @@ ildouble: 1
 ldouble: 1
=20
 Function: Imaginary part of "casin":
-double: 1
+double: 2
 float: 2
-idouble: 1
+idouble: 2
 ifloat: 2
=20
 Function: Real part of "casin_downward":
 double: 3
-float: 1
+float: 2
 idouble: 3
-ifloat: 1
+ifloat: 2
=20
 Function: Imaginary part of "casin_downward":
 double: 5
@@ -334,16 +334,16 @@ idouble: 5
 ifloat: 3
=20
 Function: Real part of "casin_upward":
-double: 2
-float: 1
-idouble: 2
-ifloat: 1
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
=20
 Function: Imaginary part of "casin_upward":
-double: 4
-float: 4
-idouble: 4
-ifloat: 4
+double: 5
+float: 7
+idouble: 5
+ifloat: 7
=20
 Function: Real part of "casinh":
 double: 5
@@ -369,9 +369,9 @@ ifloat: 3
=20
 Function: Imaginary part of "casinh_downward":
 double: 3
-float: 1
+float: 2
 idouble: 3
-ifloat: 1
+ifloat: 2
=20
 Function: Real part of "casinh_towardzero":
 double: 5
@@ -386,19 +386,21 @@ idouble: 3
 ifloat: 1
=20
 Function: Real part of "casinh_upward":
-double: 4
-float: 4
-idouble: 4
-ifloat: 4
+double: 5
+float: 7
+idouble: 5
+ifloat: 7
=20
 Function: Imaginary part of "casinh_upward":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: Real part of "catan":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
=20
 Function: Imaginary part of "catan":
@@ -411,9 +413,9 @@ ldouble: 1
=20
 Function: Real part of "catan_downward":
 double: 1
-float: 1
+float: 2
 idouble: 1
-ifloat: 1
+ifloat: 2
=20
 Function: Imaginary part of "catan_downward":
 double: 2
@@ -423,15 +425,15 @@ ifloat: 2
=20
 Function: Real part of "catan_towardzero":
 double: 1
-float: 1
+float: 2
 idouble: 1
-ifloat: 1
+ifloat: 2
=20
 Function: Imaginary part of "catan_towardzero":
 double: 2
-float: 1
+float: 2
 idouble: 2
-ifloat: 1
+ifloat: 2
=20
 Function: Real part of "catan_upward":
 double: 1
@@ -454,7 +456,9 @@ ildouble: 4
 ldouble: 4
=20
 Function: Imaginary part of "catanh":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
=20
 Function: Real part of "catanh_downward":
@@ -471,9 +475,9 @@ ifloat: 2
=20
 Function: Real part of "catanh_towardzero":
 double: 2
-float: 1
+float: 2
 idouble: 2
-ifloat: 1
+ifloat: 2
=20
 Function: Imaginary part of "catanh_towardzero":
 double: 1
@@ -483,9 +487,9 @@ ifloat: 2
=20
 Function: Real part of "catanh_upward":
 double: 4
-float: 3
+float: 4
 idouble: 4
-ifloat: 3
+ifloat: 4
=20
 Function: Imaginary part of "catanh_upward":
 double: 1
diff --git a/sysdeps/hppa/nptl/bits/pthreadtypes.h =
b/sysdeps/hppa/nptl/bits/pthreadtypes.h
index e37111a2f3..2f17318121 100644
--- a/sysdeps/hppa/nptl/bits/pthreadtypes.h
+++ b/sysdeps/hppa/nptl/bits/pthreadtypes.h
@@ -103,40 +103,34 @@ typedef union
   long int __align;
 } pthread_mutexattr_t;
=20
-
-/* Data structure for conditional variable handling.  The structure of
-   the attribute type is not exposed on purpose. However, this =
structure
-   is exposed via PTHREAD_COND_INITIALIZER, and because of this, the
-   Linuxthreads version sets the first four ints to one. In the NPTL
-   version we must check, in every function using pthread_cond_t,
-   for the static Linuxthreads initializer and clear the appropriate
-   words. */
+/* Data structure for conditional variable handling. */
 typedef union
 {
   struct
   {
-    /* In the old Linuxthreads pthread_cond_t, this is the
-       start of the 4-word lock structure, the next four words
-       are set all to 1 by the Linuxthreads
-       PTHREAD_COND_INITIALIZER.  */
-    int __lock __attribute__ ((__aligned__(16)));
-    /* Tracks the initialization of this structure:
-       0  initialized with NPTL PTHREAD_COND_INITIALIZER.
-       1  initialized with Linuxthreads PTHREAD_COND_INITIALIZER.
-       2  initialization in progress.  */
-    int __initializer;
-    unsigned int __futex;
-    void *__mutex;
-    /* In the old Linuxthreads this would have been the start
-       of the pthread_fastlock status word.  */
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-    /* The NPTL pthread_cond_t is exactly the same size as
-       the Linuxthreads version, there are no words to spare.  */
+    __extension__ union
+    {
+      __extension__ unsigned long long int __wseq;
+      struct {
+	unsigned int __low;
+	unsigned int __high;
+      } __wseq32;
+    };
+    __extension__ union
+    {
+      __extension__ unsigned long long int __g1_start;
+      struct {
+	unsigned int __low;
+        unsigned int __high;
+      } __g1_start32;
+    };
+    unsigned int __g_refs[2];
+    unsigned int __g_size[2];
+    unsigned int __g1_orig_size;
+    unsigned int __wrefs;
+    unsigned int __g_signals[2];
   } __data;
+  int __unused_lock __attribute__ ((__aligned__(16)));
   char __size[__SIZEOF_PTHREAD_COND_T];
   __extension__ long long int __align;
 } pthread_cond_t;
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/shm.h =
b/sysdeps/unix/sysv/linux/hppa/bits/shm.h
index 794f0ab2da..52632d0dea 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/shm.h
@@ -37,7 +37,7 @@
 #define SHM_UNLOCK	12		/* unlock segment (root only) */
=20
 /* Segment low boundary address multiple.  */
-#define SHMLBA 0x00400000		/* address needs to be 4 Mb =
aligned */
+#define SHMLBA		(__getpagesize ())
=20
 /* Type to count number of attaches.  */
 typedef unsigned long int shmatt_t;
diff --git a/sysdeps/unix/sysv/linux/hppa/clone.S =
b/sysdeps/unix/sysv/linux/hppa/clone.S
index d36b302199..46ee6972d3 100644
--- a/sysdeps/unix/sysv/linux/hppa/clone.S
+++ b/sysdeps/unix/sysv/linux/hppa/clone.S
@@ -64,9 +64,12 @@
 ENTRY(__clone)
 	/* Prologue */
 	stwm	%r4, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 4, 0
 	stw	%sp, -4(%sp)
 #ifdef PIC
 	stw	%r19, -32(%sp)
+	.cfi_offset 19, 32
 #endif
=20
 	/* Sanity check arguments.  */
diff --git a/sysdeps/unix/sysv/linux/hppa/getcontext.S =
b/sysdeps/unix/sysv/linux/hppa/getcontext.S
index 6f52f2149d..68a74a0b7e 100644
--- a/sysdeps/unix/sysv/linux/hppa/getcontext.S
+++ b/sysdeps/unix/sysv/linux/hppa/getcontext.S
@@ -130,8 +130,11 @@ ENTRY(__getcontext)
=20
 	/* Prologue */
 	stwm	%r4, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 4, 0
 #ifdef PIC
 	stw	%r19, -32(%sp)
+	.cfi_offset 19, 32
 #endif
=20
 	/* Set up the trampoline registers.
@@ -156,7 +159,7 @@ ENTRY(__getcontext)
 	/* Epilogue */
 	ldw	-84(%sp), %r2
 #ifdef PIC
-	ldw	-96(%sp), %r19
+	ldw	-32(%sp), %r19
 #endif
 	bv	%r0(%r2)
 	ldwm	-64(%sp), %r4
diff --git a/sysdeps/unix/sysv/linux/hppa/internaltypes.h =
b/sysdeps/unix/sysv/linux/hppa/internaltypes.h
deleted file mode 100644
index d6496579da..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/internaltypes.h
+++ /dev/null
@@ -1,84 +0,0 @@
-#include_next <internaltypes.h>
-#ifndef _INTERNAL_TYPES_H_HPPA_
-#define _INTERNAL_TYPES_H_HPPA_ 1
-#include <atomic.h>
-
-/* In GLIBC 2.10 HPPA switched from Linuxthreads to NPTL, and in order
-to maintain ABI compatibility with pthread_cond_t, some care had to be
-taken.
-
-The NPTL pthread_cond_t grew in size. When HPPA switched to NPTL, we
-dropped the use of ldcw, and switched to the kernel helper routine for
-compare-and-swap.  This allowed HPPA to use the 4-word 16-byte aligned
-lock words, and alignment words to store the additional pthread_cond_t
-data. Once organized properly the new NPTL pthread_cond_t was 1 word
-smaller than the Linuxthreads version.
-
-However, we were faced with the case that users may have initialized =
the
-pthread_cond_t with PTHREAD_COND_INITIALIZER. In this case, the first
-four words were set to one, and must be cleared before any NPTL code
-used these words.
-
-We didn't want to use LDCW, because it continues to be a source of bugs
-when applications memset pthread_cond_t to all zeroes by accident. This
-works on all other architectures where lock words are unlocked at zero.
-Remember that because of the semantics of LDCW, a locked word is set to
-zero, and an unlocked word is set to 1.
-
-Instead we used atomic_compare_and_exchange_val_acq, but we couldn't =
use
-this on any of the pthread_cond_t words, otherwise it might interfere
-with the current operation of the structure. To solve this problem we
-used the left over word.
-
-If the stucture was initialized by a legacy Linuxthread
-PTHREAD_COND_INITIALIZER it contained a 1, and this indicates that the
-structure requires zeroing for NPTL. The first thread to come upon a
-pthread_cond_t with a 1 in the __initializer field, will
-compare-and-swap the value, placing a 2 there which will cause all =
other
-threads using the same pthread_cond_t to wait for the completion of the
-initialization. Lastly, we use a store (with memory barrier) to change
-__initializer from 2 to 0. Note that the store is strongly ordered, but
-we use the PA 1.1 compatible form which is ",ma" with zero offset.
-
-In the future, when the application is recompiled with NPTL
-PTHREAD_COND_INITIALIZER it will be a quick compare-and-swap, which
-fails because __initializer is zero, and the structure will be used as
-is correctly.  */
-
-#define cond_compat_clear(var) \
-({									=
\
-  int tmp =3D 0;								=
\
-  var->__data.__wseq =3D 0;						=
\
-  var->__data.__signals_sent =3D 0;					=
\
-  var->__data.__confirmed =3D 0;						=
\
-  var->__data.__generation =3D 0;						=
\
-  var->__data.__mutex =3D NULL;						=
\
-  var->__data.__quiescence_waiters =3D 0;					=
\
-  var->__data.__clockid =3D 0;						=
\
-  /* Clear __initializer last, to indicate initialization is done.  */	=
\
-  /* This synchronizes-with the acquire load below.  */			=
\
-  atomic_store_release (&var->__data.__initializer, 0);			=
\
-})
-
-#define cond_compat_check_and_clear(var) \
-({								\
-  int v;							\
-  int *value =3D &var->__data.__initializer;			\
-  /* This synchronizes-with the release store above.  */	\
-  while ((v =3D atomic_load_acquire (value)) !=3D 0)		\
-    {								\
-      if (v =3D=3D 1						\
-	  /* Relaxed MO is fine; it only matters who's first.  */        =
\
-	  && atomic_compare_exchange_acquire_weak_relaxed (value, 1, 2)) =
\
-	{							\
-	  /* We're first; initialize structure.  */		\
-	  cond_compat_clear (var);				\
-	  break;						\
-	}							\
-      else							\
-	/* Yield before we re-check initialization status.  */	\
-	sched_yield ();						\
-    }								\
-})
-
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pt-vfork.S =
b/sysdeps/unix/sysv/linux/hppa/pt-vfork.S
index fc4573c86b..8b7d7df2fe 100644
--- a/sysdeps/unix/sysv/linux/hppa/pt-vfork.S
+++ b/sysdeps/unix/sysv/linux/hppa/pt-vfork.S
@@ -58,7 +58,10 @@ ENTRY(__vfork)
 	   that there is no child now, so it's safe to create
 	   a frame.  */
 	stw	%rp, -20(%sp)
+	.cfi_offset 2, -20
 	stwm	%r3, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 3, 0
 	stw	%sp, -4(%sp)
=20
 	sub	%r0,%ret0,%r3
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread.h =
b/sysdeps/unix/sysv/linux/hppa/pthread.h
index ac617201d2..d3b960edd4 100644
--- a/sysdeps/unix/sysv/linux/hppa/pthread.h
+++ b/sysdeps/unix/sysv/linux/hppa/pthread.h
@@ -185,7 +185,7 @@ enum
=20
=20
 /* Conditional variable handling.  */
-#define PTHREAD_COND_INITIALIZER { { 0, 0, 0, 0, 0, (void *) 0, 0, 0 } =
}
+#define PTHREAD_COND_INITIALIZER { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, =
{0, 0} } }
=20
=20
 /* Cleanup buffers */
@@ -1165,12 +1165,6 @@ __END_DECLS
 #ifndef _PTHREAD_H_HPPA_
 #define _PTHREAD_H_HPPA_ 1
=20
-/* The pthread_cond_t initializer is compatible only with NPTL. We do =
not
-   want to be forwards compatible, we eventually want to drop the code
-   that has to clear the old LT initializer.  */
-#undef PTHREAD_COND_INITIALIZER
-#define PTHREAD_COND_INITIALIZER { { 0, 0, 0, (void *) 0, 0, 0, 0, 0, 0 =
} }
-
 /* The pthread_mutex_t and pthread_rwlock_t initializers are compatible
    only with NPTL. NPTL assumes pthread_rwlock_t is all zero.  */
 #undef PTHREAD_MUTEX_INITIALIZER
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c
deleted file mode 100644
index a6f9f5d433..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_broadcast.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_broadcast (pthread_cond_t *cond)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_broadcast_internal (cond);
-}
-versioned_symbol (libpthread, __pthread_cond_broadcast, =
pthread_cond_broadcast,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_broadcast
-# define __pthread_cond_broadcast __pthread_cond_broadcast_internal
-# include_next <pthread_cond_broadcast.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c
deleted file mode 100644
index 49af087bb4..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_destroy.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_destroy (pthread_cond_t *cond)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_destroy_internal (cond);
-}
-versioned_symbol (libpthread, __pthread_cond_destroy, =
pthread_cond_destroy,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_destroy
-# define __pthread_cond_destroy __pthread_cond_destroy_internal
-# include_next <pthread_cond_destroy.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c
deleted file mode 100644
index ccb3de07ff..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_init.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_init (pthread_cond_t *cond, const pthread_condattr_t =
*cond_attr)
-{
-  cond_compat_clear (cond);
-  return __pthread_cond_init_internal (cond, cond_attr);
-}
-versioned_symbol (libpthread, __pthread_cond_init, pthread_cond_init,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_init
-# define __pthread_cond_init __pthread_cond_init_internal
-# include_next <pthread_cond_init.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c
deleted file mode 100644
index 2bf32af933..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_signal.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_signal (pthread_cond_t *cond)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_signal_internal (cond);
-}
-versioned_symbol (libpthread, __pthread_cond_signal, =
pthread_cond_signal,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_signal
-# define __pthread_cond_signal __pthread_cond_signal_internal
-# include_next <pthread_cond_signal.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c
deleted file mode 100644
index 1cc2fc15d4..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_wait.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_wait_internal (cond, mutex);
-}
-versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait,
-                  GLIBC_2_3_2);
-int
-__pthread_cond_timedwait (cond, mutex, abstime)
-     pthread_cond_t *cond;
-     pthread_mutex_t *mutex;
-     const struct timespec *abstime;
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_timedwait_internal (cond, mutex, abstime);
-}
-versioned_symbol (libpthread, __pthread_cond_timedwait, =
pthread_cond_timedwait,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_wait
-# define __pthread_cond_wait __pthread_cond_wait_internal
-# undef __pthread_cond_timedwait
-# define __pthread_cond_timedwait __pthread_cond_timedwait_internal
-# include_next <pthread_cond_wait.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/setcontext.S =
b/sysdeps/unix/sysv/linux/hppa/setcontext.S
index 3f4da7938f..92cb204f8d 100644
--- a/sysdeps/unix/sysv/linux/hppa/setcontext.S
+++ b/sysdeps/unix/sysv/linux/hppa/setcontext.S
@@ -26,8 +26,11 @@
 ENTRY(__setcontext)
 	/* Prologue */
 	stwm	%r3, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 3, 0
 #ifdef PIC
 	stw	%r19, -32(%sp)
+	.cfi_offset 19, 32
 #endif
=20
 	/* Save ucp.  */
@@ -141,7 +144,7 @@ ENTRY(__setcontext)
=20
 	/* No further context available. Exit now.  */
 	bl	HIDDEN_JUMPTARGET(exit), %r2
-	ldi	-1, %r26
+	ldi	0, %r26
=20
=20
 .Lerror:
diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h =
b/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
index 5ea297267f..8b7f2b2095 100644
--- a/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
+++ b/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
@@ -62,12 +62,11 @@
 	ENTRY (__##syscall_name##_nocancel)				=
\
 	DOARGS_##args					ASM_LINE_SEP	=
\
 	stwm TREG, 64(%sp)				ASM_LINE_SEP	=
\
+	.cfi_def_cfa_offset -64				ASM_LINE_SEP	=
\
 	.cfi_offset TREG, 0				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	=
\
 	stw %sp, -4(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 30, -4				ASM_LINE_SEP	=
\
 	stw %r19, -32(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 19, -32				ASM_LINE_SEP	=
\
+	.cfi_offset 19, 32				ASM_LINE_SEP	=
\
 	/* Save r19 */					ASM_LINE_SEP	=
\
 	SAVE_PIC(TREG)					ASM_LINE_SEP	=
\
 	/* Do syscall, delay loads # */			ASM_LINE_SEP	=
\
@@ -91,21 +90,19 @@ L(pre_nc_end):						=
ASM_LINE_SEP	\
 	/* No need to LOAD_PIC */			ASM_LINE_SEP	=
\
 	/* Undo frame */				ASM_LINE_SEP	=
\
 	ldwm -64(%sp),TREG				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	=
\
 	/* Restore rp before exit */			ASM_LINE_SEP	=
\
 	ldw -20(%sp), %rp				ASM_LINE_SEP	=
\
-	.cfi_restore 2					ASM_LINE_SEP	=
\
 	ret						ASM_LINE_SEP	=
\
 	END(__##syscall_name##_nocancel)		ASM_LINE_SEP	=
\
 	/**********************************************/ASM_LINE_SEP	=
\
 	ENTRY (name)							=
\
 	DOARGS_##args					ASM_LINE_SEP	=
\
 	stwm TREG, 64(%sp)				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	=
\
+	.cfi_def_cfa_offset -64				ASM_LINE_SEP	=
\
+	.cfi_offset TREG, 0				ASM_LINE_SEP	=
\
 	stw %sp, -4(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 30, -4				ASM_LINE_SEP	=
\
 	stw %r19, -32(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 19, -32				ASM_LINE_SEP	=
\
+	.cfi_offset 19, 32				ASM_LINE_SEP	=
\
 	/* Done setting up frame, continue... */	ASM_LINE_SEP	=
\
 	SINGLE_THREAD_P					ASM_LINE_SEP	=
\
 	cmpib,<>,n 0,%ret0,L(pseudo_cancel)		ASM_LINE_SEP	=
\
@@ -168,40 +165,32 @@ L(pre_end):						=
ASM_LINE_SEP	\
 	/* No need to LOAD_PIC */			ASM_LINE_SEP	=
\
 	/* Undo frame */				ASM_LINE_SEP	=
\
 	ldwm -64(%sp),TREG				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	=
\
 	/* Restore rp before exit */			ASM_LINE_SEP	=
\
-	ldw -20(%sp), %rp				ASM_LINE_SEP	=
\
-	.cfi_restore 2					ASM_LINE_SEP
+	ldw -20(%sp), %rp				ASM_LINE_SEP
=20
 /* Save arguments into our frame */
 # define PUSHARGS_0	/* nothing to do */
 # define PUSHARGS_1	PUSHARGS_0 stw %r26, -36(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 26, -36			=
ASM_LINE_SEP
+			.cfi_offset 26, 28			=
ASM_LINE_SEP
 # define PUSHARGS_2	PUSHARGS_1 stw %r25, -40(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 25, -40			=
ASM_LINE_SEP
+			.cfi_offset 25, 24			=
ASM_LINE_SEP
 # define PUSHARGS_3	PUSHARGS_2 stw %r24, -44(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 24, -44			=
ASM_LINE_SEP
+			.cfi_offset 24, 20			=
ASM_LINE_SEP
 # define PUSHARGS_4	PUSHARGS_3 stw %r23, -48(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 23, -48			=
ASM_LINE_SEP
+			.cfi_offset 23, 16			=
ASM_LINE_SEP
 # define PUSHARGS_5	PUSHARGS_4 stw %r22, -52(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 22, -52			=
ASM_LINE_SEP
+			.cfi_offset 22, 12			=
ASM_LINE_SEP
 # define PUSHARGS_6	PUSHARGS_5 stw %r21, -56(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 21, -56			=
ASM_LINE_SEP
+			.cfi_offset 21, 8			=
ASM_LINE_SEP
=20
 /* Bring them back from the stack */
 # define POPARGS_0	/* nothing to do */
-# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	=
ASM_LINE_SEP	\
-			.cfi_restore 26				=
ASM_LINE_SEP
-# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	=
ASM_LINE_SEP	\
-			.cfi_restore 25				=
ASM_LINE_SEP
-# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	=
ASM_LINE_SEP	\
-			.cfi_restore 24				=
ASM_LINE_SEP
-# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	=
ASM_LINE_SEP	\
-			.cfi_restore 23				=
ASM_LINE_SEP
-# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	=
ASM_LINE_SEP	\
-			.cfi_restore 22				=
ASM_LINE_SEP
-# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	=
ASM_LINE_SEP	\
-			.cfi_restore 21				=
ASM_LINE_SEP
+# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	=
ASM_LINE_SEP
+# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	=
ASM_LINE_SEP
+# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	=
ASM_LINE_SEP
+# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	=
ASM_LINE_SEP
+# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	=
ASM_LINE_SEP
+# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	=
ASM_LINE_SEP
=20
 # if IS_IN (libpthread)
 #  ifdef PIC
diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep.h =
b/sysdeps/unix/sysv/linux/hppa/sysdep.h
index d8dd0431a4..c0cd59e9f5 100644
--- a/sysdeps/unix/sysv/linux/hppa/sysdep.h
+++ b/sysdeps/unix/sysv/linux/hppa/sysdep.h
@@ -49,11 +49,9 @@
    to another function */
 #define TREG 4
 #define SAVE_PIC(SREG) \
-	copy %r19, SREG ASM_LINE_SEP	\
-	.cfi_register 19, SREG
+	copy %r19, SREG
 #define LOAD_PIC(LREG) \
-	copy LREG , %r19 ASM_LINE_SEP	\
-	.cfi_restore 19
+	copy LREG , %r19
 /* Inline assembly defines */
 #define TREG_ASM "%r4" /* Cant clobber r3, it holds framemarker */
 #define SAVE_ASM_PIC	"       copy %%r19, %" TREG_ASM "\n"
@@ -292,12 +290,11 @@
 #define DO_CALL(syscall_name, args)				\
 	/* Create a frame */			ASM_LINE_SEP	\
 	stwm TREG, 64(%sp)			ASM_LINE_SEP	\
+	.cfi_def_cfa_offset -64			ASM_LINE_SEP	\
 	.cfi_offset TREG, 0			ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset 64		ASM_LINE_SEP	\
 	stw %sp, -4(%sp)			ASM_LINE_SEP	\
-	.cfi_offset 30, -4			ASM_LINE_SEP	\
 	stw %r19, -32(%sp)			ASM_LINE_SEP	\
-	.cfi_offset 19, -32			ASM_LINE_SEP	\
+	.cfi_offset 19, 32			ASM_LINE_SEP	\
 	/* Save r19 */				ASM_LINE_SEP	\
 	SAVE_PIC(TREG)				ASM_LINE_SEP	\
 	/* Do syscall, delay loads # */		ASM_LINE_SEP	\
@@ -320,10 +317,8 @@
 L(pre_end):					ASM_LINE_SEP	\
 	/* Restore our frame, restoring TREG */	ASM_LINE_SEP	\
 	ldwm -64(%sp), TREG			ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset -64		ASM_LINE_SEP	\
 	/* Restore return pointer */		ASM_LINE_SEP	\
-	ldw -20(%sp),%rp			ASM_LINE_SEP	\
-	.cfi_restore 2				ASM_LINE_SEP
+	ldw -20(%sp),%rp			ASM_LINE_SEP
=20
 /* We do nothing with the return, except hand it back to someone else =
*/
 #undef  DO_CALL_NOERRNO

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From - Thu Nov 08 21:39:48 2018
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X-Mozilla-Keys:                                                                                 
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: mmap problem in localedef
Date: Tue, 11 Apr 2017 15:57:57 +0200
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To: John David Anglin <dave.anglin@bell.net>
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Am 2017-04-11 14:01, schrieb John David Anglin:
> On 2017-04-05, at 7:03 PM, John David Anglin wrote:
> 
>> Attached is my latest patch for glibc trunk on hppa.  
>> sysdeps/hppa/fpu/libm-test-ulps is updated with new
>> ulps values.  sysdeps/hppa/dl-fptr.c b/sysdeps/hppa/dl-fptr.c is 
>> updated because define for ALIGN_UP
>> moved.
> 
> Latest patch set adds v3 version of pthread_cond_t patch and fixes
> nptl/tst-typesizes.

+	  char *new_guard = (char *) (((uintptr_t) pd - guardsize) & 
~pagesize_m1);
+	  char *old_guard = (char *) (((uintptr_t) pd - pd->guardsize) & 
~pagesize_m1);

Why cast this to char* at all? Just use the uintptr_t numbers for the 
compare.

Eike
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Subject: Greetings.
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Good Day Dearest.

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I am waiting on your reply

Regards,

Sarah.
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From - Thu Nov 08 21:39:48 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: fix bugs in pa_memcpy
Date: Fri, 14 Apr 2017 14:15:20 -0400 (EDT)
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To: Helge Deller <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.ports.parisc:27390
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/27390>

The patch 554bfeceb8a22d448cd986fc9efce25e833278a1 ("parisc: Fix access
fault handling in pa_memcpy()") reimplements the pa_memcpy function.
Unfortunatelly, it makes the kernel unbootable. The crash happens in the
function ide_complete_cmd where memcpy is called with the same source and
destination address.

This patch fixes a few bugs in pa_memcpy:

* When jumping to .Lcopy_loop_16 for the first time, don't skip the
  instruction "ldi 31,t0" (this bug made the kernel unbootable)
* Use the COND macro when comparing length, so that the comparison is
  64-bit (a theoretical issue, in case the length is greater than
  0xffffffff)
* Don't use the COND macro after the "extru" instruction (the PA-RISC
  specification says that the upper 32-bits of extru result are undefined,
  although they are set to zero in practice)
* Fix exception addresses in .Lcopy16_fault and .Lcopy8_fault
* Rename .Lcopy_loop_4 to .Lcopy_loop_8 (so that it is consistent with
  .Lcopy8_fault)

Cc: <stable@vger.kernel.org> # v4.9+
Fixes: 554bfeceb8a2 ("parisc: Fix access fault handling in pa_memcpy()")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
 arch/parisc/lib/lusercopy.S |   27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

Index: linux-4.11-rc6/arch/parisc/lib/lusercopy.S
===================================================================
--- linux-4.11-rc6.orig/arch/parisc/lib/lusercopy.S
+++ linux-4.11-rc6/arch/parisc/lib/lusercopy.S
@@ -201,7 +201,7 @@ ENTRY_CFI(pa_memcpy)
 	add	dst,len,end
 
 	/* short copy with less than 16 bytes? */
-	cmpib,>>=,n 15,len,.Lbyte_loop
+	cmpib,COND(>>=),n 15,len,.Lbyte_loop
 
 	/* same alignment? */
 	xor	src,dst,t0
@@ -216,7 +216,7 @@ ENTRY_CFI(pa_memcpy)
 	/* loop until we are 64-bit aligned */
 .Lalign_loop64:
 	extru	dst,31,3,t1
-	cmpib,=,n	0,t1,.Lcopy_loop_16
+	cmpib,=,n	0,t1,.Lcopy_loop_16_start
 20:	ldb,ma	1(srcspc,src),t1
 21:	stb,ma	t1,1(dstspc,dst)
 	b	.Lalign_loop64
@@ -225,6 +225,7 @@ ENTRY_CFI(pa_memcpy)
 	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
 	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
 
+.Lcopy_loop_16_start:
 	ldi	31,t0
 .Lcopy_loop_16:
 	cmpb,COND(>>=),n t0,len,.Lword_loop
@@ -267,7 +268,7 @@ ENTRY_CFI(pa_memcpy)
 	/* loop until we are 32-bit aligned */
 .Lalign_loop32:
 	extru	dst,31,2,t1
-	cmpib,=,n	0,t1,.Lcopy_loop_4
+	cmpib,=,n	0,t1,.Lcopy_loop_8
 20:	ldb,ma	1(srcspc,src),t1
 21:	stb,ma	t1,1(dstspc,dst)
 	b	.Lalign_loop32
@@ -277,7 +278,7 @@ ENTRY_CFI(pa_memcpy)
 	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
 
 
-.Lcopy_loop_4:
+.Lcopy_loop_8:
 	cmpib,COND(>>=),n 15,len,.Lbyte_loop
 
 10:	ldw	0(srcspc,src),t1
@@ -299,7 +300,7 @@ ENTRY_CFI(pa_memcpy)
 	ASM_EXCEPTIONTABLE_ENTRY(16b,.Lcopy_done)
 	ASM_EXCEPTIONTABLE_ENTRY(17b,.Lcopy_done)
 
-	b	.Lcopy_loop_4
+	b	.Lcopy_loop_8
 	ldo	-16(len),len
 
 .Lbyte_loop:
@@ -324,7 +325,7 @@ ENTRY_CFI(pa_memcpy)
 .Lunaligned_copy:
 	/* align until dst is 32bit-word-aligned */
 	extru	dst,31,2,t1
-	cmpib,COND(=),n	0,t1,.Lcopy_dstaligned
+	cmpib,=,n	0,t1,.Lcopy_dstaligned
 20:	ldb	0(srcspc,src),t1
 	ldo	1(src),src
 21:	stb,ma	t1,1(dstspc,dst)
@@ -362,7 +363,7 @@ ENTRY_CFI(pa_memcpy)
 	cmpiclr,<> 1,t0,%r0
 	b,n .Lcase1
 .Lcase0:
-	cmpb,= %r0,len,.Lcda_finish
+	cmpb,COND(=) %r0,len,.Lcda_finish
 	nop
 
 1:	ldw,ma 4(srcspc,src), a3
@@ -376,7 +377,7 @@ ENTRY_CFI(pa_memcpy)
 1:	ldw,ma 4(srcspc,src), a3
 	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
 	ldo -1(len),len
-	cmpb,=,n %r0,len,.Ldo0
+	cmpb,COND(=),n %r0,len,.Ldo0
 .Ldo4:
 1:	ldw,ma 4(srcspc,src), a0
 	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
@@ -402,7 +403,7 @@ ENTRY_CFI(pa_memcpy)
 1:	stw,ma t0, 4(dstspc,dst)
 	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcopy_done)
 	ldo -4(len),len
-	cmpb,<> %r0,len,.Ldo4
+	cmpb,COND(<>) %r0,len,.Ldo4
 	nop
 .Ldo0:
 	shrpw a2, a3, %sar, t0
@@ -436,14 +437,14 @@ ENTRY_CFI(pa_memcpy)
 	/* fault exception fixup handlers: */
 #ifdef CONFIG_64BIT
 .Lcopy16_fault:
-10:	b	.Lcopy_done
-	std,ma	t1,8(dstspc,dst)
+	b	.Lcopy_done
+10:	std,ma	t1,8(dstspc,dst)
 	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
 #endif
 
 .Lcopy8_fault:
-10:	b	.Lcopy_done
-	stw,ma	t1,4(dstspc,dst)
+	b	.Lcopy_done
+10:	stw,ma	t1,4(dstspc,dst)
 	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
 
 	.exit
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From - Thu Nov 08 21:39:48 2018
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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ide,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH] ide: don't call memcpy with the same source and
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Date: Fri, 14 Apr 2017 14:35:33 -0400 (EDT)
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Xref: news.gmane.org gmane.linux.ide:63419 gmane.linux.kernel:2456368 gmane.linux.ports.parisc:27391
Archived-At: <http://permalink.gmane.org/gmane.linux.ide/63419>

The parisc architecture recently reimplemented the memcpy function and
their reimplementation crashed when source and destination overlapped.

The crash happened in the function ide_complete_cmd where memcpy is called
with the same source and destination pointer. According to the C
specification, memcpy behavior is undefined if the source and destination
range overlaps. This patches fixes the undefined behavior.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
 drivers/ide/ide-io.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-4.11-rc6/drivers/ide/ide-io.c
===================================================================
--- linux-4.11-rc6.orig/drivers/ide/ide-io.c
+++ linux-4.11-rc6/drivers/ide/ide-io.c
@@ -107,7 +107,7 @@ void ide_complete_cmd(ide_drive_t *drive
 
 		if (cmd->tf_flags & IDE_TFLAG_DYN)
 			kfree(orig_cmd);
-		else
+		else if (cmd != orig_cmd)
 			memcpy(orig_cmd, cmd, sizeof(*cmd));
 	}
 }
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From - Thu Nov 08 21:39:48 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: fix bugs in pa_memcpy
Date: Sat, 15 Apr 2017 17:26:04 +0200
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Cc: Al Viro <viro@ZenIV.linux.org.uk>,
        John David Anglin <dave.anglin@bell.net>,
        linux-parisc@vger.kernel.org
To: Mikulas Patocka <mpatocka@redhat.com>
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On 14.04.2017 20:15, Mikulas Patocka wrote:
> The patch 554bfeceb8a22d448cd986fc9efce25e833278a1 ("parisc: Fix access
> fault handling in pa_memcpy()") reimplements the pa_memcpy function.
> Unfortunatelly, it makes the kernel unbootable. The crash happens in the
> function ide_complete_cmd where memcpy is called with the same source and
> destination address.
> 
> This patch fixes a few bugs in pa_memcpy:
> 
> * When jumping to .Lcopy_loop_16 for the first time, don't skip the
>   instruction "ldi 31,t0" (this bug made the kernel unbootable)
> * Use the COND macro when comparing length, so that the comparison is
>   64-bit (a theoretical issue, in case the length is greater than
>   0xffffffff)
> * Don't use the COND macro after the "extru" instruction (the PA-RISC
>   specification says that the upper 32-bits of extru result are undefined,
>   although they are set to zero in practice)
> * Fix exception addresses in .Lcopy16_fault and .Lcopy8_fault
> * Rename .Lcopy_loop_4 to .Lcopy_loop_8 (so that it is consistent with
>   .Lcopy8_fault)
> 
> Cc: <stable@vger.kernel.org> # v4.9+
> Fixes: 554bfeceb8a2 ("parisc: Fix access fault handling in pa_memcpy()")
> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

Nice catch!
Thanks,
Helge



> 
> ---
>  arch/parisc/lib/lusercopy.S |   27 ++++++++++++++-------------
>  1 file changed, 14 insertions(+), 13 deletions(-)
> 
> Index: linux-4.11-rc6/arch/parisc/lib/lusercopy.S
> ===================================================================
> --- linux-4.11-rc6.orig/arch/parisc/lib/lusercopy.S
> +++ linux-4.11-rc6/arch/parisc/lib/lusercopy.S
> @@ -201,7 +201,7 @@ ENTRY_CFI(pa_memcpy)
>  	add	dst,len,end
>  
>  	/* short copy with less than 16 bytes? */
> -	cmpib,>>=,n 15,len,.Lbyte_loop
> +	cmpib,COND(>>=),n 15,len,.Lbyte_loop
>  
>  	/* same alignment? */
>  	xor	src,dst,t0
> @@ -216,7 +216,7 @@ ENTRY_CFI(pa_memcpy)
>  	/* loop until we are 64-bit aligned */
>  .Lalign_loop64:
>  	extru	dst,31,3,t1
> -	cmpib,=,n	0,t1,.Lcopy_loop_16
> +	cmpib,=,n	0,t1,.Lcopy_loop_16_start
>  20:	ldb,ma	1(srcspc,src),t1
>  21:	stb,ma	t1,1(dstspc,dst)
>  	b	.Lalign_loop64
> @@ -225,6 +225,7 @@ ENTRY_CFI(pa_memcpy)
>  	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
>  	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
>  
> +.Lcopy_loop_16_start:
>  	ldi	31,t0
>  .Lcopy_loop_16:
>  	cmpb,COND(>>=),n t0,len,.Lword_loop
> @@ -267,7 +268,7 @@ ENTRY_CFI(pa_memcpy)
>  	/* loop until we are 32-bit aligned */
>  .Lalign_loop32:
>  	extru	dst,31,2,t1
> -	cmpib,=,n	0,t1,.Lcopy_loop_4
> +	cmpib,=,n	0,t1,.Lcopy_loop_8
>  20:	ldb,ma	1(srcspc,src),t1
>  21:	stb,ma	t1,1(dstspc,dst)
>  	b	.Lalign_loop32
> @@ -277,7 +278,7 @@ ENTRY_CFI(pa_memcpy)
>  	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
>  
>  
> -.Lcopy_loop_4:
> +.Lcopy_loop_8:
>  	cmpib,COND(>>=),n 15,len,.Lbyte_loop
>  
>  10:	ldw	0(srcspc,src),t1
> @@ -299,7 +300,7 @@ ENTRY_CFI(pa_memcpy)
>  	ASM_EXCEPTIONTABLE_ENTRY(16b,.Lcopy_done)
>  	ASM_EXCEPTIONTABLE_ENTRY(17b,.Lcopy_done)
>  
> -	b	.Lcopy_loop_4
> +	b	.Lcopy_loop_8
>  	ldo	-16(len),len
>  
>  .Lbyte_loop:
> @@ -324,7 +325,7 @@ ENTRY_CFI(pa_memcpy)
>  .Lunaligned_copy:
>  	/* align until dst is 32bit-word-aligned */
>  	extru	dst,31,2,t1
> -	cmpib,COND(=),n	0,t1,.Lcopy_dstaligned
> +	cmpib,=,n	0,t1,.Lcopy_dstaligned
>  20:	ldb	0(srcspc,src),t1
>  	ldo	1(src),src
>  21:	stb,ma	t1,1(dstspc,dst)
> @@ -362,7 +363,7 @@ ENTRY_CFI(pa_memcpy)
>  	cmpiclr,<> 1,t0,%r0
>  	b,n .Lcase1
>  .Lcase0:
> -	cmpb,= %r0,len,.Lcda_finish
> +	cmpb,COND(=) %r0,len,.Lcda_finish
>  	nop
>  
>  1:	ldw,ma 4(srcspc,src), a3
> @@ -376,7 +377,7 @@ ENTRY_CFI(pa_memcpy)
>  1:	ldw,ma 4(srcspc,src), a3
>  	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
>  	ldo -1(len),len
> -	cmpb,=,n %r0,len,.Ldo0
> +	cmpb,COND(=),n %r0,len,.Ldo0
>  .Ldo4:
>  1:	ldw,ma 4(srcspc,src), a0
>  	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
> @@ -402,7 +403,7 @@ ENTRY_CFI(pa_memcpy)
>  1:	stw,ma t0, 4(dstspc,dst)
>  	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcopy_done)
>  	ldo -4(len),len
> -	cmpb,<> %r0,len,.Ldo4
> +	cmpb,COND(<>) %r0,len,.Ldo4
>  	nop
>  .Ldo0:
>  	shrpw a2, a3, %sar, t0
> @@ -436,14 +437,14 @@ ENTRY_CFI(pa_memcpy)
>  	/* fault exception fixup handlers: */
>  #ifdef CONFIG_64BIT
>  .Lcopy16_fault:
> -10:	b	.Lcopy_done
> -	std,ma	t1,8(dstspc,dst)
> +	b	.Lcopy_done
> +10:	std,ma	t1,8(dstspc,dst)
>  	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
>  #endif
>  
>  .Lcopy8_fault:
> -10:	b	.Lcopy_done
> -	stw,ma	t1,4(dstspc,dst)
> +	b	.Lcopy_done
> +10:	stw,ma	t1,4(dstspc,dst)
>  	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
>  
>  	.exit
> 

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From - Thu Nov 08 21:39:48 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc architecture fix for v4.11-rc7
Date: Sat, 15 Apr 2017 17:48:46 +0200
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Cc: Mikulas Patocka <mpatocka@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>,
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Hi Linus,

please pull one important fix for the parisc architecture for kernel 4.11-rc7 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.11-4

Mikulas Patocka fixed a few bugs in our new pa_memcpy() assembler function,
e.g. one bug made the kernel unbootable if source and destination address are
the same.

Thanks,
Helge

----------------------------------------------------------------
Mikulas Patocka (1):
      parisc: fix bugs in pa_memcpy

 arch/parisc/lib/lusercopy.S | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)
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From - Thu Nov 08 21:39:49 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: __get_user() for 64-bit value broken on 32-bit kernel
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We have a problem on the 32bit kernel with __get_user()
for a 64bit value.

In arch/parisc/include/asm/uaccess.h we have
#define __get_user(x, ptr)                               \
({                                                       \
        register long __gu_err __asm__ ("r8") = 0;       \
        register long __gu_val;                          \
                                                         \
        load_sr2();                                      \
        switch (sizeof(*(ptr))) {                        \
            case 1: __get_user_asm("ldb", ptr); break;   \
            case 2: __get_user_asm("ldh", ptr); break;   \
            case 4: __get_user_asm("ldw", ptr); break;   \
            case 8: LDD_USER(ptr);  break;               \
            default: BUILD_BUG(); break;                 \
        }                                                \
                                                         \
        (x) = (__force __typeof__(*(ptr))) __gu_val;     \
        __gu_err;                                        \
})

The problem is, that on a 32bit kernel __gu_val is a 32bit ("long") variable,
but LDD_USER(ptr) returns a 64bit entity.
And since __gu_val is 32bit only, afterwards the (x) = __gu_val will
return a 32bit-truncated value too.

I'm not sure how this can be fixed. My latest approaches always ended
with lots of compiler warnings.

A testcase for this is the test_user_copy.ko kernel module (source
in lib/test_user_copy.c).

Any ideas?

Helge
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From - Thu Nov 08 21:39:49 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix get_user() for 64-bit value on 32-bit kernel
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This fixes a bug in which the upper 32-bits of a 64-bit value which is read by
get_user() was lost.
While touching this code, split out pre-loading of %sr2 space register and
clean up code indent.

Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 8442727..cbd4f4a 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -39,10 +39,10 @@
 #define get_user __get_user
 
 #if !defined(CONFIG_64BIT)
-#define LDD_USER(ptr)		__get_user_asm64(ptr)
+#define LDD_USER(val, ptr)	__get_user_asm64(val, ptr)
 #define STD_USER(x, ptr)	__put_user_asm64(x, ptr)
 #else
-#define LDD_USER(ptr)		__get_user_asm("ldd", ptr)
+#define LDD_USER(val, ptr)	__get_user_asm(val, "ldd", ptr)
 #define STD_USER(x, ptr)	__put_user_asm("std", x, ptr)
 #endif
 
@@ -97,63 +97,87 @@ struct exception_data {
 		" mtsp %0,%%sr2\n\t"		\
 		: : "r"(get_fs()) : )
 
-#define __get_user(x, ptr)                               \
-({                                                       \
-	register long __gu_err __asm__ ("r8") = 0;       \
-	register long __gu_val;				 \
-							 \
-	load_sr2();					 \
-	switch (sizeof(*(ptr))) {			 \
-	    case 1: __get_user_asm("ldb", ptr); break;   \
-	    case 2: __get_user_asm("ldh", ptr); break;   \
-	    case 4: __get_user_asm("ldw", ptr); break;   \
-	    case 8: LDD_USER(ptr);  break;		 \
-	    default: BUILD_BUG(); break;		 \
-	}                                                \
-							 \
-	(x) = (__force __typeof__(*(ptr))) __gu_val;	 \
-	__gu_err;                                        \
+#define __get_user_internal(val, ptr)			\
+({							\
+	register long __gu_err __asm__ ("r8") = 0;	\
+							\
+	switch (sizeof(*(ptr))) {			\
+	case 1: __get_user_asm(val, "ldb", ptr); break;	\
+	case 2: __get_user_asm(val, "ldh", ptr); break; \
+	case 4: __get_user_asm(val, "ldw", ptr); break; \
+	case 8: LDD_USER(val, ptr); break;		\
+	default: BUILD_BUG();				\
+	}						\
+							\
+	__gu_err;					\
 })
 
-#define __get_user_asm(ldx, ptr)                        \
+#define __get_user(val, ptr)				\
+({							\
+	load_sr2();					\
+	__get_user_internal(val, ptr);			\
+})
+
+#define __get_user_asm(val, ldx, ptr)			\
+{							\
+	register long __gu_val;				\
+							\
 	__asm__("1: " ldx " 0(%%sr2,%2),%0\n"		\
 		"9:\n"					\
 		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 9b)	\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err));
+		: "r"(ptr), "1"(__gu_err));		\
+							\
+	(val) = (__force __typeof__(*(ptr))) __gu_val;	\
+}
 
 #if !defined(CONFIG_64BIT)
 
-#define __get_user_asm64(ptr) 				\
+#define __get_user_asm64(val, ptr)			\
+{							\
+	union {						\
+		unsigned long long	l;		\
+		__typeof__(*(ptr))	t;		\
+	} __gu_tmp;					\
+							\
 	__asm__("   copy %%r0,%R0\n"			\
 		"1: ldw 0(%%sr2,%2),%0\n"		\
 		"2: ldw 4(%%sr2,%2),%R0\n"		\
 		"9:\n"					\
 		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 9b)	\
 		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 9b)	\
-		: "=r"(__gu_val), "=r"(__gu_err)	\
-		: "r"(ptr), "1"(__gu_err));
+		: "=&r"(__gu_tmp.l), "=r"(__gu_err)	\
+		: "r"(ptr), "1"(__gu_err));		\
+							\
+	(val) = __gu_tmp.t;				\
+}
 
 #endif /* !defined(CONFIG_64BIT) */
 
 
-#define __put_user(x, ptr)                                      \
+#define __put_user_internal(x, ptr)				\
 ({								\
 	register long __pu_err __asm__ ("r8") = 0;      	\
         __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x);	\
 								\
-	load_sr2();						\
 	switch (sizeof(*(ptr))) {				\
-	    case 1: __put_user_asm("stb", __x, ptr); break;     \
-	    case 2: __put_user_asm("sth", __x, ptr); break;     \
-	    case 4: __put_user_asm("stw", __x, ptr); break;     \
-	    case 8: STD_USER(__x, ptr); break;			\
-	    default: BUILD_BUG(); break;			\
-	}                                                       \
+	case 1: __put_user_asm("stb", __x, ptr); break;		\
+	case 2: __put_user_asm("sth", __x, ptr); break;		\
+	case 4: __put_user_asm("stw", __x, ptr); break;		\
+	case 8: STD_USER(__x, ptr); break;			\
+	default: BUILD_BUG();					\
+	}							\
 								\
 	__pu_err;						\
 })
 
+#define __put_user(x, ptr)					\
+({								\
+	load_sr2();						\
+	__put_user_internal(x, ptr);				\
+})
+
+
 /*
  * The "__put_user/kernel_asm()" macros tell gcc they read from memory
  * instead of writing. This is because they do not write to any memory
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X-Mozilla-Keys:                                                                                 
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: mmap problem in localedef
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On 2017-04-11, at 9:57 AM, Rolf Eike Beer wrote:

> Am 2017-04-11 14:01, schrieb John David Anglin:
>> On 2017-04-05, at 7:03 PM, John David Anglin wrote:
>>> Attached is my latest patch for glibc trunk on hppa.  =
sysdeps/hppa/fpu/libm-test-ulps is updated with new
>>> ulps values.  sysdeps/hppa/dl-fptr.c b/sysdeps/hppa/dl-fptr.c is =
updated because define for ALIGN_UP
>>> moved.
>> Latest patch set adds v3 version of pthread_cond_t patch and fixes
>> nptl/tst-typesizes.
>=20
> +	  char *new_guard =3D (char *) (((uintptr_t) pd - guardsize) & =
~pagesize_m1);
> +	  char *old_guard =3D (char *) (((uintptr_t) pd - pd->guardsize) =
& ~pagesize_m1);
>=20
> Why cast this to char* at all? Just use the uintptr_t numbers for the =
compare.

"old_guard" needs to be a page aligned pointer in the call to mprotect.  =
After doing the alignments, we
are left with integer values.  We could remove the casts in the above =
lines and add a cast in the call
to mprotect, but then new_guard and old_guard would become unsigned =
long.  So, the lines are about
the same length.

I did review the patch and found that the compare was reversed, so the =
call to mprotect was always
being skipped.

I submitted the revised change to the glibc list:
https://sourceware.org/ml/libc-alpha/2017-04/msg00269.html

Dave
--
John David Anglin	dave.anglin@bell.net


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diff --git a/elf/Makefile b/elf/Makefile
index cc4aeb25b6..883dd8f013 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -543,7 +543,7 @@ CFLAGS-ldconfig.c =3D $(SYSCONF-FLAGS) =
-D'LIBDIR=3D"$(libdir)"' \
 libof-ldconfig =3D ldconfig
 CFLAGS-dl-cache.c =3D $(SYSCONF-FLAGS)
 CFLAGS-cache.c =3D $(SYSCONF-FLAGS)
-CFLAGS-rtld.c =3D $(SYSCONF-FLAGS)
+CFLAGS-rtld.c +=3D $(SYSCONF-FLAGS)
=20
 cpp-srcs-left :=3D $(all-rtld-routines:=3D.os)
 lib :=3D rtld
diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c
index e5c5f79a82..b3e0e9959f 100644
--- a/nptl/allocatestack.c
+++ b/nptl/allocatestack.c
@@ -647,8 +647,12 @@ allocate_stack (const struct pthread_attr *attr, =
struct pthread **pdp,
 			prot) !=3D 0)
 	    goto mprot_error;
 #elif _STACK_GROWS_UP
-	  if (mprotect ((char *) pd - pd->guardsize,
-			pd->guardsize - guardsize, prot) !=3D 0)
+	  char *new_guard =3D (char *)(((uintptr_t) pd - guardsize) & =
~pagesize_m1);
+	  char *old_guard =3D (char *)(((uintptr_t) pd - pd->guardsize) =
& ~pagesize_m1);
+	  /* The guard size difference might be > 0, but once rounded
+	     to the nearest page the size difference might be zero.  */
+	  if (new_guard > old_guard
+	      && mprotect (old_guard, new_guard - old_guard, prot) !=3D =
0)
 	    goto mprot_error;
 #endif
=20
diff --git a/resolv/res_mkquery.c b/resolv/res_mkquery.c
index 8279d15de4..d8d955ba33 100644
--- a/resolv/res_mkquery.c
+++ b/resolv/res_mkquery.c
@@ -83,6 +83,15 @@
 # define RANDOM_BITS(Var) { uint64_t v64; HP_TIMING_NOW (v64); Var =3D =
v64; }
 #endif
=20
+/* The structure HEADER is normally aligned to a word boundary and its
+   fields are accessed using word loads and stores.  We need to access
+   this structure when it is aligned on a byte boundary.  This can =
cause
+   problems on machines with strict alignment.  So, we create a new
+   typedef to reduce its alignment to one.  This ensures the fields are
+   accessed with byte loads and stores.  */
+typedef HEADER __attribute__ ((__aligned__(1))) UHEADER;
+#define HEADER UHEADER
+
 /*
  * Form all types of queries.
  * Returns the size of the result or -1.
diff --git a/resolv/res_query.c b/resolv/res_query.c
index ec65bab041..0140ffb156 100644
--- a/resolv/res_query.c
+++ b/resolv/res_query.c
@@ -80,6 +80,14 @@
 #include <string.h>
 #include <resolv/resolv-internal.h>
=20
+/* The structure HEADER is normally aligned to a word boundary and its
+   fields are accessed using word loads and stores.  We need to access=20=

+   this structure when it is aligned on a byte boundary.  This can =
cause
+   problems on machines with strict alignment.  So, we create a new
+   typedef to reduce its alignment to one.  This ensures the fields are
+   accessed with byte loads and stores.  */
+typedef HEADER __attribute__ ((__aligned__(1))) UHEADER;
+
 /* Options.  Leave them on. */
 /* #undef DEBUG */
=20
@@ -119,8 +127,8 @@ __libc_res_nquery(res_state statp,
 		  int *resplen2,
 		  int *answerp2_malloced)
 {
-	HEADER *hp =3D (HEADER *) answer;
-	HEADER *hp2;
+	UHEADER *hp =3D (UHEADER *) answer;
+	UHEADER *hp2;
 	int n, use_malloc =3D 0;
=20
 	size_t bufsize =3D (type =3D=3D T_QUERY_A_AND_AAAA ? 2 : 1) * =
QUERYSIZE;
@@ -237,7 +245,7 @@ __libc_res_nquery(res_state statp,
=20
 	if (answerp !=3D NULL)
 	  /* __libc_res_nsend might have reallocated the buffer.  */
-	  hp =3D (HEADER *) *answerp;
+	  hp =3D (UHEADER *) *answerp;
=20
 	/* We simplify the following tests by assigning HP to HP2 or
 	   vice versa.  It is easy to verify that this is the same as
@@ -248,7 +256,7 @@ __libc_res_nquery(res_state statp,
 	  }
 	else
 	  {
-	    hp2 =3D (HEADER *) *answerp2;
+	    hp2 =3D (UHEADER *) *answerp2;
 	    if (n < (int) sizeof (HEADER))
 	      {
 	        hp =3D hp2;
@@ -338,7 +346,7 @@ __libc_res_nsearch(res_state statp,
 		   int *answerp2_malloced)
 {
 	const char *cp, * const *domain;
-	HEADER *hp =3D (HEADER *) answer;
+	UHEADER *hp =3D (UHEADER *) answer;
 	char tmp[NS_MAXDNAME];
 	u_int dots;
 	int trailing_dot, ret, saved_herrno;
diff --git a/resolv/res_send.c b/resolv/res_send.c
index ffb9a6af7b..264cc96eaf 100644
--- a/resolv/res_send.c
+++ b/resolv/res_send.c
@@ -110,6 +110,15 @@
 #include <kernel-features.h>
 #include <libc-diag.h>
=20
+/* The structure HEADER is normally aligned to a word boundary and its
+   fields are accessed using word loads and stores.  We need to access=20=

+   this structure when it is aligned on a byte boundary.  This can =
cause
+   problems on machines with strict alignment.  So, we create a new
+   typedef to reduce its alignment to one.  This ensures the fields are
+   accessed with byte loads and stores.  */
+typedef HEADER __attribute__ ((__aligned__(1))) UHEADER;
+#define HEADER UHEADER
+
 #if PACKETSZ > 65536
 #define MAXPACKET       PACKETSZ
 #else
diff --git a/sysdeps/hppa/Makefile b/sysdeps/hppa/Makefile
index c0edb99917..64af43b5ff 100644
--- a/sysdeps/hppa/Makefile
+++ b/sysdeps/hppa/Makefile
@@ -23,6 +23,7 @@ LDFLAGS-c_pic.os +=3D -Wl,--unique=3D.text*
=20
 ifeq ($(subdir),elf)
 CFLAGS-rtld.c +=3D -mdisable-fpregs
+CFLAGS-dl-reloc.c +=3D --param inline-unit-growth=3D100
 sysdep-dl-routines +=3D dl-symaddr dl-fptr
 # dl-fptr.c needs a complete rewrite to fix ISO C aliasing violations.
 CFLAGS-dl-fptr.c =3D -Wno-error
diff --git a/sysdeps/hppa/__longjmp.c b/sysdeps/hppa/__longjmp.c
index a7eefc7ad6..438db01473 100644
--- a/sysdeps/hppa/__longjmp.c
+++ b/sysdeps/hppa/__longjmp.c
@@ -24,15 +24,16 @@
 void
 __longjmp (__jmp_buf env, int val)
 {
+#ifdef CHECK_SP
+  CHECK_SP (env[0].__jmp_buf.__sp);
+#endif
+
+  {
   /* We must use one of the non-callee saves registers
      for env.  */
   register unsigned long r26 asm ("r26") =3D (unsigned long)&env[0];
   register unsigned long r25 asm ("r25") =3D (unsigned long)(val =3D=3D =
0 ? 1 : val);
=20
-#ifdef CHECK_SP
-  CHECK_SP (env[0].__jmp_buf.__sp);
-#endif
-
   asm volatile(
 	/* Set return value.  */
 	"copy	%0, %%r28\n\t"
@@ -79,6 +80,8 @@ __longjmp (__jmp_buf env, int val)
 	: /* No outputs.  */
 	: "r" (r25), "r" (r26)
 	: /* No point in clobbers.  */ );
+  }
+
   /* Avoid `volatile function does return' warnings.  */
   for (;;);
 }
diff --git a/sysdeps/hppa/crti.S b/sysdeps/hppa/crti.S
index 7c1470ddf8..0f9bb7b013 100644
--- a/sysdeps/hppa/crti.S
+++ b/sysdeps/hppa/crti.S
@@ -49,6 +49,95 @@
 # define PREINIT_FUNCTION_WEAK 1
 #endif
=20
+#if PREINIT_FUNCTION_WEAK
+	weak_extern (PREINIT_FUNCTION)
+#else
+	.hidden PREINIT_FUNCTION
+#endif
+
+
+/* If we have working .init_array support, we want to keep the .init
+   section empty (apart from the mandatory prologue/epilogue.  This
+   ensures that the default unwind conventions (return-pointer in b0,
+   frame state in ar.pfs, etc.)  will do the Right Thing.  To ensure
+   an empty .init section, we register gmon_initializer() via the
+   .init_array.
+
+    --davidm 02/10/29 */
+
+#if PREINIT_FUNCTION_WEAK
+/* This blob of assembly code is one simple C function:
+
+static void
+__attribute__ ((used))
+gmon_initializer (void)
+{
+  extern void weak_function __gmon_start__ (void);
+
+  if (__gmon_start__)
+    (*__gmon_start__)();
+}
+
+In a final executable, PLABEL32 relocations for function pointers are
+resolved at link time.  Typically, binutils/ld resolves __gmon_start__
+using an external shared library.  __gmon_start__ is always called if
+it is found at link time.  If __gmon_start__ is not found at runtime
+due to a library update, then the function pointer will point at a null
+function descriptor and calling it will cause a segmentation fault.
+So, we call __canonicalize_funcptr_for_compare to obtain the =
canonicalized
+address of __gmon_start__ and skip calling __gmon_start__ if it is =
zero.
+
+ */
+	.type __canonicalize_funcptr_for_compare,@function
+	.type $$dyncall,@function
+
+	.section .data.rel.ro,"aw",@progbits
+	.align 4
+.LC0:
+	.type __gmon_start__,@function
+	.word P%__gmon_start__
+
+	.text
+	.align 4
+	.type gmon_initializer,@function
+gmon_initializer:
+	.PROC
+	.CALLINFO FRAME=3D64,CALLS,SAVE_RP,ENTRY_GR=3D4
+	.ENTRY
+	stw %r2,-20(%r30)
+	stwm %r4,64(%r30)
+	stw %r3,-60(%r30)
+	addil LT'.LC0,%r19
+	ldw RT'.LC0(%r1),%r28
+	ldw 0(%r28),%r3
+	comib,=3D 0,%r3,1f
+	copy %r19,%r4
+	stw %r19,-32(%r30)
+	bl __canonicalize_funcptr_for_compare,%r2
+	copy %r3,%r26
+	comib,=3D 0,%r28,1f
+	copy %r4,%r19
+	copy %r3,%r22
+	.CALL ARGW0=3DGR
+	bl $$dyncall,%r31
+	copy %r31,%r2
+1:
+	ldw -84(%r30),%r2
+	ldw -60(%r30),%r3
+	bv %r0(%r2)
+	ldwm -64(%r30),%r4
+	.EXIT
+	.PROCEND
+	.size gmon_initializer, .-gmon_initializer
+
+# undef PREINIT_FUNCTION
+# define PREINIT_FUNCTION gmon_initializer
+#endif
+
+	.section .init_array, "aw"
+	.word P% PREINIT_FUNCTION
+
+
 /* _init prologue.  */
 	.section .init, "ax", %progbits
 	.align 4
@@ -58,14 +147,6 @@ _init:
 	stw	%rp,-20(%sp)
 	stwm	%r4,64(%sp)
 	stw	%r19,-32(%sp)
-#if PREINIT_FUNCTION_WEAK
-	bl	PREINIT_FUNCTION,%rp
-	copy	%r19,%r4	/* delay slot */
-#else
-	bl	PREINIT_FUNCTION,%rp
-	copy	%r19,%r4	/* delay slot */
-#endif
-	copy	%r4,%r19
=20
 /* _fini prologue.  */
         .section .fini,"ax",%progbits
diff --git a/sysdeps/hppa/crtn.S b/sysdeps/hppa/crtn.S
index 42f310d217..49666b81f9 100644
--- a/sysdeps/hppa/crtn.S
+++ b/sysdeps/hppa/crtn.S
@@ -38,27 +38,6 @@
 /* crtn.S puts function epilogues in the .init and .fini sections
    corresponding to the prologues in crti.S. */
=20
-/* Note that we cannot have a weak undefined __gmon_start__, because
-   that would require this to be PIC, and the linker is currently not
-   able to generate a proper procedure descriptor for _init.  Sad but
-   true.  Anyway, HPPA is one of those horrible architectures where
-   making the comparison and indirect call is quite expensive (see the
-   comment in sysdeps/generic/initfini.c). */
-        .text
-        .align 4
-        .weak   __gmon_start__
-        .type    __gmon_start__,@function
-__gmon_start__:
-	.proc
-	.callinfo
-	.entry
-        bv,n %r0(%r2)
-	.exit
-	.procend
-
-/* Here is the tail end of _init.  We put __gmon_start before this so
-   that the assembler creates the .PARISC.unwind section for us, ie.
-   with the right attributes.  */
 	.section .init, "ax", @progbits
 	ldw	-84(%sp),%rp
 	copy	%r4,%r19
diff --git a/sysdeps/hppa/dl-fptr.c b/sysdeps/hppa/dl-fptr.c
index 83bdb91202..96fd09d192 100644
--- a/sysdeps/hppa/dl-fptr.c
+++ b/sysdeps/hppa/dl-fptr.c
@@ -28,6 +28,7 @@
 #include <dl-fptr.h>
 #include <dl-unmap-segments.h>
 #include <atomic.h>
+#include <libc-pointer-arith.h>
=20
 #ifndef ELF_MACHINE_BOOT_FPTR_TABLE_LEN
 /* ELF_MACHINE_BOOT_FPTR_TABLE_LEN should be greater than the number of
@@ -181,24 +182,29 @@ make_fdesc (ElfW(Addr) ip, ElfW(Addr) gp)
 static inline ElfW(Addr) * __attribute__ ((always_inline))
 make_fptr_table (struct link_map *map)
 {
-  const ElfW(Sym) *symtab
-    =3D (const void *) D_PTR (map, l_info[DT_SYMTAB]);
+  const ElfW(Sym) *symtab =3D (const void *) D_PTR (map, =
l_info[DT_SYMTAB]);
   const char *strtab =3D (const void *) D_PTR (map, l_info[DT_STRTAB]);
   ElfW(Addr) *fptr_table;
   size_t size;
   size_t len;
+  const ElfW(Sym) *symtabend;
=20
-  /* XXX Apparently the only way to find out the size of the dynamic
-     symbol section is to assume that the string table follows right
-     afterwards...  */
-  len =3D ((strtab - (char *) symtab)
+  /* Determine the end of the dynamic symbol table using the hash.  */
+  if (map->l_info[DT_HASH] !=3D NULL)
+    symtabend =3D (symtab + ((Elf_Symndx *) D_PTR (map, =
l_info[DT_HASH]))[1]);
+  else
+  /* There is no direct way to determine the number of symbols in the
+     dynamic symbol table and no hash table is present.  The ELF
+     binary is ill-formed but what shall we do?  Use the beginning of
+     the string table which generally follows the symbol table.  */
+    symtabend =3D (const ElfW(Sym) *) strtab;
+
+  len =3D (((char *) symtabend - (char *) symtab)
 	 / map->l_info[DT_SYMENT]->d_un.d_val);
-  size =3D ((len * sizeof (fptr_table[0]) + GLRO(dl_pagesize) - 1)
-	  & -GLRO(dl_pagesize));
-  /* XXX We don't support here in the moment systems without MAP_ANON.
-     There probably are none for IA-64.  In case this is proven wrong
-     we will have to open /dev/null here and use the file descriptor
-     instead of the hard-coded -1.  */
+  size =3D ALIGN_UP (len * sizeof (fptr_table[0]), GLRO(dl_pagesize));
+
+  /* We don't support systems without MAP_ANON.  We avoid using malloc
+     because this might get called before malloc is setup.  */
   fptr_table =3D __mmap (NULL, size,
 		       PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
 		       -1, 0);
@@ -331,22 +337,45 @@ elf_machine_resolve (void)
   return addr;
 }
=20
+static inline int
+_dl_read_access_allowed (unsigned int *addr)
+{
+  int result;
+
+  asm ("proberi	(%1),3,%0" : "=3Dr" (result) : "r" (addr) : );
+
+  return result;
+}
+
 ElfW(Addr)
 _dl_lookup_address (const void *address)
 {
   ElfW(Addr) addr =3D (ElfW(Addr)) address;
   unsigned int *desc, *gptr;
=20
-  /* Check for special cases.  */
-  if ((int) addr =3D=3D -1
-      || (unsigned int) addr < 4096
-      || !((unsigned int) addr & 2))
+  /* Return ADDR if the least-significant two bits of ADDR are not =
consistent
+     with ADDR being a linker defined function pointer.  The normal =
value for
+     a code address in a backtrace is 3.  */
+  if (((unsigned int) addr & 3) !=3D 2)
+    return addr;
+
+  /* Handle special case where ADDR points to page 0.  */
+  if ((unsigned int) addr < 4096)
     return addr;
=20
   /* Clear least-significant two bits from descriptor address.  */
   desc =3D (unsigned int *) ((unsigned int) addr & ~3);
+  if (!_dl_read_access_allowed (desc))
+    return addr;
=20
-  /* Check if descriptor requires resolution.  The following trampoline =
is
+  /* Load first word of candidate descriptor.  It should be a pointer
+     with word alignment and point to memory that can be read.  */
+  gptr =3D (unsigned int *) desc[0];
+  if (((unsigned int) gptr & 3) !=3D 0
+      || !_dl_read_access_allowed (gptr))
+    return addr;
+
+  /* See if descriptor requires resolution.  The following trampoline =
is
      used in each global offset table for function resolution:
=20
 		ldw 0(r20),r22
@@ -358,7 +387,6 @@ _dl_lookup_address (const void *address)
 		.word "_dl_runtime_resolve ltp"
      got:	.word _DYNAMIC
 		.word "struct link map address" */
-  gptr =3D (unsigned int *) desc[0];
   if (gptr[0] =3D=3D 0xea9f1fdd			/* b,l .-12,r20  =
   */
       && gptr[1] =3D=3D 0xd6801c1e			/* depwi =
0,31,2,r20 */
       && (ElfW(Addr)) gptr[2] =3D=3D elf_machine_resolve ())
diff --git a/sysdeps/hppa/dl-trampoline.S b/sysdeps/hppa/dl-trampoline.S
index 856339bffe..f1294a931f 100644
--- a/sysdeps/hppa/dl-trampoline.S
+++ b/sysdeps/hppa/dl-trampoline.S
@@ -82,6 +82,11 @@ _dl_runtime_resolve:
 	bl	_dl_fixup,%rp
 	copy	%r21,%r19		/* set fixup func ltp */
=20
+	/* Sometimes a final executable may attempt to call an undefined
+	   weak function (e.g., __gmon_start__).  Return if the function
+	   was not resolved by _dl_fixup */
+	comib,=3D	0,%r28,1f
+
 	/* Load up the returned func descriptor */
 	copy	%r28, %r22
 	copy	%r29, %r19
@@ -107,6 +112,13 @@ _dl_runtime_resolve:
 	/* Jump to new function, but return to previous function */
 	bv	%r0(%r22)
 	ldw	-20(%sp),%rp
+
+1:
+	/* Return to previous function */
+	ldw	-148(%sp),%rp
+	bv	%r0(%rp)
+	ldo	-128(%sp),%sp
+
         .EXIT
         .PROCEND
 	cfi_endproc
diff --git a/sysdeps/hppa/fpu/libm-test-ulps =
b/sysdeps/hppa/fpu/libm-test-ulps
index b5c8e7ccde..6e2058391d 100644
--- a/sysdeps/hppa/fpu/libm-test-ulps
+++ b/sysdeps/hppa/fpu/libm-test-ulps
@@ -184,15 +184,15 @@ idouble: 1
 ifloat: 2
=20
 Function: Imaginary part of "cacos":
-double: 1
+double: 2
 float: 2
-idouble: 1
+idouble: 2
 ifloat: 2
=20
 Function: Real part of "cacos_downward":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: Imaginary part of "cacos_downward":
@@ -202,9 +202,9 @@ idouble: 5
 ifloat: 3
=20
 Function: Real part of "cacos_towardzero":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: Imaginary part of "cacos_towardzero":
@@ -220,15 +220,15 @@ idouble: 2
 ifloat: 2
=20
 Function: Imaginary part of "cacos_upward":
-double: 4
-float: 4
-idouble: 4
-ifloat: 4
+double: 5
+float: 7
+idouble: 5
+ifloat: 7
=20
 Function: Real part of "cacosh":
-double: 1
+double: 2
 float: 2
-idouble: 1
+idouble: 2
 ifloat: 2
=20
 Function: Imaginary part of "cacosh":
@@ -244,10 +244,10 @@ idouble: 5
 ifloat: 3
=20
 Function: Imaginary part of "cacosh_downward":
-double: 2
-float: 2
-idouble: 2
-ifloat: 2
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
=20
 Function: Real part of "cacosh_towardzero":
 double: 5
@@ -256,9 +256,9 @@ idouble: 5
 ifloat: 3
=20
 Function: Imaginary part of "cacosh_towardzero":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: Real part of "cacosh_upward":
@@ -268,9 +268,9 @@ idouble: 4
 ifloat: 4
=20
 Function: Imaginary part of "cacosh_upward":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: "carg":
@@ -304,16 +304,16 @@ ildouble: 1
 ldouble: 1
=20
 Function: Imaginary part of "casin":
-double: 1
+double: 2
 float: 2
-idouble: 1
+idouble: 2
 ifloat: 2
=20
 Function: Real part of "casin_downward":
 double: 3
-float: 1
+float: 2
 idouble: 3
-ifloat: 1
+ifloat: 2
=20
 Function: Imaginary part of "casin_downward":
 double: 5
@@ -334,16 +334,16 @@ idouble: 5
 ifloat: 3
=20
 Function: Real part of "casin_upward":
-double: 2
-float: 1
-idouble: 2
-ifloat: 1
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
=20
 Function: Imaginary part of "casin_upward":
-double: 4
-float: 4
-idouble: 4
-ifloat: 4
+double: 5
+float: 7
+idouble: 5
+ifloat: 7
=20
 Function: Real part of "casinh":
 double: 5
@@ -369,9 +369,9 @@ ifloat: 3
=20
 Function: Imaginary part of "casinh_downward":
 double: 3
-float: 1
+float: 2
 idouble: 3
-ifloat: 1
+ifloat: 2
=20
 Function: Real part of "casinh_towardzero":
 double: 5
@@ -386,19 +386,21 @@ idouble: 3
 ifloat: 1
=20
 Function: Real part of "casinh_upward":
-double: 4
-float: 4
-idouble: 4
-ifloat: 4
+double: 5
+float: 7
+idouble: 5
+ifloat: 7
=20
 Function: Imaginary part of "casinh_upward":
-double: 2
+double: 3
 float: 2
-idouble: 2
+idouble: 3
 ifloat: 2
=20
 Function: Real part of "catan":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
=20
 Function: Imaginary part of "catan":
@@ -411,9 +413,9 @@ ldouble: 1
=20
 Function: Real part of "catan_downward":
 double: 1
-float: 1
+float: 2
 idouble: 1
-ifloat: 1
+ifloat: 2
=20
 Function: Imaginary part of "catan_downward":
 double: 2
@@ -423,15 +425,15 @@ ifloat: 2
=20
 Function: Real part of "catan_towardzero":
 double: 1
-float: 1
+float: 2
 idouble: 1
-ifloat: 1
+ifloat: 2
=20
 Function: Imaginary part of "catan_towardzero":
 double: 2
-float: 1
+float: 2
 idouble: 2
-ifloat: 1
+ifloat: 2
=20
 Function: Real part of "catan_upward":
 double: 1
@@ -454,7 +456,9 @@ ildouble: 4
 ldouble: 4
=20
 Function: Imaginary part of "catanh":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
=20
 Function: Real part of "catanh_downward":
@@ -471,9 +475,9 @@ ifloat: 2
=20
 Function: Real part of "catanh_towardzero":
 double: 2
-float: 1
+float: 2
 idouble: 2
-ifloat: 1
+ifloat: 2
=20
 Function: Imaginary part of "catanh_towardzero":
 double: 1
@@ -483,9 +487,9 @@ ifloat: 2
=20
 Function: Real part of "catanh_upward":
 double: 4
-float: 3
+float: 4
 idouble: 4
-ifloat: 3
+ifloat: 4
=20
 Function: Imaginary part of "catanh_upward":
 double: 1
diff --git a/sysdeps/hppa/nptl/bits/pthreadtypes.h =
b/sysdeps/hppa/nptl/bits/pthreadtypes.h
index e37111a2f3..2f17318121 100644
--- a/sysdeps/hppa/nptl/bits/pthreadtypes.h
+++ b/sysdeps/hppa/nptl/bits/pthreadtypes.h
@@ -103,40 +103,34 @@ typedef union
   long int __align;
 } pthread_mutexattr_t;
=20
-
-/* Data structure for conditional variable handling.  The structure of
-   the attribute type is not exposed on purpose. However, this =
structure
-   is exposed via PTHREAD_COND_INITIALIZER, and because of this, the
-   Linuxthreads version sets the first four ints to one. In the NPTL
-   version we must check, in every function using pthread_cond_t,
-   for the static Linuxthreads initializer and clear the appropriate
-   words. */
+/* Data structure for conditional variable handling. */
 typedef union
 {
   struct
   {
-    /* In the old Linuxthreads pthread_cond_t, this is the
-       start of the 4-word lock structure, the next four words
-       are set all to 1 by the Linuxthreads
-       PTHREAD_COND_INITIALIZER.  */
-    int __lock __attribute__ ((__aligned__(16)));
-    /* Tracks the initialization of this structure:
-       0  initialized with NPTL PTHREAD_COND_INITIALIZER.
-       1  initialized with Linuxthreads PTHREAD_COND_INITIALIZER.
-       2  initialization in progress.  */
-    int __initializer;
-    unsigned int __futex;
-    void *__mutex;
-    /* In the old Linuxthreads this would have been the start
-       of the pthread_fastlock status word.  */
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-    /* The NPTL pthread_cond_t is exactly the same size as
-       the Linuxthreads version, there are no words to spare.  */
+    __extension__ union
+    {
+      __extension__ unsigned long long int __wseq;
+      struct {
+	unsigned int __low;
+	unsigned int __high;
+      } __wseq32;
+    };
+    __extension__ union
+    {
+      __extension__ unsigned long long int __g1_start;
+      struct {
+	unsigned int __low;
+        unsigned int __high;
+      } __g1_start32;
+    };
+    unsigned int __g_refs[2];
+    unsigned int __g_size[2];
+    unsigned int __g1_orig_size;
+    unsigned int __wrefs;
+    unsigned int __g_signals[2];
   } __data;
+  int __unused_lock __attribute__ ((__aligned__(16)));
   char __size[__SIZEOF_PTHREAD_COND_T];
   __extension__ long long int __align;
 } pthread_cond_t;
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/shm.h =
b/sysdeps/unix/sysv/linux/hppa/bits/shm.h
index 794f0ab2da..52632d0dea 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/shm.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/shm.h
@@ -37,7 +37,7 @@
 #define SHM_UNLOCK	12		/* unlock segment (root only) */
=20
 /* Segment low boundary address multiple.  */
-#define SHMLBA 0x00400000		/* address needs to be 4 Mb =
aligned */
+#define SHMLBA		(__getpagesize ())
=20
 /* Type to count number of attaches.  */
 typedef unsigned long int shmatt_t;
diff --git a/sysdeps/unix/sysv/linux/hppa/clone.S =
b/sysdeps/unix/sysv/linux/hppa/clone.S
index d36b302199..46ee6972d3 100644
--- a/sysdeps/unix/sysv/linux/hppa/clone.S
+++ b/sysdeps/unix/sysv/linux/hppa/clone.S
@@ -64,9 +64,12 @@
 ENTRY(__clone)
 	/* Prologue */
 	stwm	%r4, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 4, 0
 	stw	%sp, -4(%sp)
 #ifdef PIC
 	stw	%r19, -32(%sp)
+	.cfi_offset 19, 32
 #endif
=20
 	/* Sanity check arguments.  */
diff --git a/sysdeps/unix/sysv/linux/hppa/getcontext.S =
b/sysdeps/unix/sysv/linux/hppa/getcontext.S
index 6f52f2149d..68a74a0b7e 100644
--- a/sysdeps/unix/sysv/linux/hppa/getcontext.S
+++ b/sysdeps/unix/sysv/linux/hppa/getcontext.S
@@ -130,8 +130,11 @@ ENTRY(__getcontext)
=20
 	/* Prologue */
 	stwm	%r4, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 4, 0
 #ifdef PIC
 	stw	%r19, -32(%sp)
+	.cfi_offset 19, 32
 #endif
=20
 	/* Set up the trampoline registers.
@@ -156,7 +159,7 @@ ENTRY(__getcontext)
 	/* Epilogue */
 	ldw	-84(%sp), %r2
 #ifdef PIC
-	ldw	-96(%sp), %r19
+	ldw	-32(%sp), %r19
 #endif
 	bv	%r0(%r2)
 	ldwm	-64(%sp), %r4
diff --git a/sysdeps/unix/sysv/linux/hppa/internaltypes.h =
b/sysdeps/unix/sysv/linux/hppa/internaltypes.h
deleted file mode 100644
index d6496579da..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/internaltypes.h
+++ /dev/null
@@ -1,84 +0,0 @@
-#include_next <internaltypes.h>
-#ifndef _INTERNAL_TYPES_H_HPPA_
-#define _INTERNAL_TYPES_H_HPPA_ 1
-#include <atomic.h>
-
-/* In GLIBC 2.10 HPPA switched from Linuxthreads to NPTL, and in order
-to maintain ABI compatibility with pthread_cond_t, some care had to be
-taken.
-
-The NPTL pthread_cond_t grew in size. When HPPA switched to NPTL, we
-dropped the use of ldcw, and switched to the kernel helper routine for
-compare-and-swap.  This allowed HPPA to use the 4-word 16-byte aligned
-lock words, and alignment words to store the additional pthread_cond_t
-data. Once organized properly the new NPTL pthread_cond_t was 1 word
-smaller than the Linuxthreads version.
-
-However, we were faced with the case that users may have initialized =
the
-pthread_cond_t with PTHREAD_COND_INITIALIZER. In this case, the first
-four words were set to one, and must be cleared before any NPTL code
-used these words.
-
-We didn't want to use LDCW, because it continues to be a source of bugs
-when applications memset pthread_cond_t to all zeroes by accident. This
-works on all other architectures where lock words are unlocked at zero.
-Remember that because of the semantics of LDCW, a locked word is set to
-zero, and an unlocked word is set to 1.
-
-Instead we used atomic_compare_and_exchange_val_acq, but we couldn't =
use
-this on any of the pthread_cond_t words, otherwise it might interfere
-with the current operation of the structure. To solve this problem we
-used the left over word.
-
-If the stucture was initialized by a legacy Linuxthread
-PTHREAD_COND_INITIALIZER it contained a 1, and this indicates that the
-structure requires zeroing for NPTL. The first thread to come upon a
-pthread_cond_t with a 1 in the __initializer field, will
-compare-and-swap the value, placing a 2 there which will cause all =
other
-threads using the same pthread_cond_t to wait for the completion of the
-initialization. Lastly, we use a store (with memory barrier) to change
-__initializer from 2 to 0. Note that the store is strongly ordered, but
-we use the PA 1.1 compatible form which is ",ma" with zero offset.
-
-In the future, when the application is recompiled with NPTL
-PTHREAD_COND_INITIALIZER it will be a quick compare-and-swap, which
-fails because __initializer is zero, and the structure will be used as
-is correctly.  */
-
-#define cond_compat_clear(var) \
-({									=
\
-  int tmp =3D 0;								=
\
-  var->__data.__wseq =3D 0;						=
\
-  var->__data.__signals_sent =3D 0;					=
\
-  var->__data.__confirmed =3D 0;						=
\
-  var->__data.__generation =3D 0;						=
\
-  var->__data.__mutex =3D NULL;						=
\
-  var->__data.__quiescence_waiters =3D 0;					=
\
-  var->__data.__clockid =3D 0;						=
\
-  /* Clear __initializer last, to indicate initialization is done.  */	=
\
-  /* This synchronizes-with the acquire load below.  */			=
\
-  atomic_store_release (&var->__data.__initializer, 0);			=
\
-})
-
-#define cond_compat_check_and_clear(var) \
-({								\
-  int v;							\
-  int *value =3D &var->__data.__initializer;			\
-  /* This synchronizes-with the release store above.  */	\
-  while ((v =3D atomic_load_acquire (value)) !=3D 0)		\
-    {								\
-      if (v =3D=3D 1						\
-	  /* Relaxed MO is fine; it only matters who's first.  */        =
\
-	  && atomic_compare_exchange_acquire_weak_relaxed (value, 1, 2)) =
\
-	{							\
-	  /* We're first; initialize structure.  */		\
-	  cond_compat_clear (var);				\
-	  break;						\
-	}							\
-      else							\
-	/* Yield before we re-check initialization status.  */	\
-	sched_yield ();						\
-    }								\
-})
-
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pt-vfork.S =
b/sysdeps/unix/sysv/linux/hppa/pt-vfork.S
index fc4573c86b..8b7d7df2fe 100644
--- a/sysdeps/unix/sysv/linux/hppa/pt-vfork.S
+++ b/sysdeps/unix/sysv/linux/hppa/pt-vfork.S
@@ -58,7 +58,10 @@ ENTRY(__vfork)
 	   that there is no child now, so it's safe to create
 	   a frame.  */
 	stw	%rp, -20(%sp)
+	.cfi_offset 2, -20
 	stwm	%r3, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 3, 0
 	stw	%sp, -4(%sp)
=20
 	sub	%r0,%ret0,%r3
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread.h =
b/sysdeps/unix/sysv/linux/hppa/pthread.h
index ac617201d2..d3b960edd4 100644
--- a/sysdeps/unix/sysv/linux/hppa/pthread.h
+++ b/sysdeps/unix/sysv/linux/hppa/pthread.h
@@ -185,7 +185,7 @@ enum
=20
=20
 /* Conditional variable handling.  */
-#define PTHREAD_COND_INITIALIZER { { 0, 0, 0, 0, 0, (void *) 0, 0, 0 } =
}
+#define PTHREAD_COND_INITIALIZER { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, =
{0, 0} } }
=20
=20
 /* Cleanup buffers */
@@ -1165,12 +1165,6 @@ __END_DECLS
 #ifndef _PTHREAD_H_HPPA_
 #define _PTHREAD_H_HPPA_ 1
=20
-/* The pthread_cond_t initializer is compatible only with NPTL. We do =
not
-   want to be forwards compatible, we eventually want to drop the code
-   that has to clear the old LT initializer.  */
-#undef PTHREAD_COND_INITIALIZER
-#define PTHREAD_COND_INITIALIZER { { 0, 0, 0, (void *) 0, 0, 0, 0, 0, 0 =
} }
-
 /* The pthread_mutex_t and pthread_rwlock_t initializers are compatible
    only with NPTL. NPTL assumes pthread_rwlock_t is all zero.  */
 #undef PTHREAD_MUTEX_INITIALIZER
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c
deleted file mode 100644
index a6f9f5d433..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_broadcast.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_broadcast.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_broadcast (pthread_cond_t *cond)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_broadcast_internal (cond);
-}
-versioned_symbol (libpthread, __pthread_cond_broadcast, =
pthread_cond_broadcast,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_broadcast
-# define __pthread_cond_broadcast __pthread_cond_broadcast_internal
-# include_next <pthread_cond_broadcast.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c
deleted file mode 100644
index 49af087bb4..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_destroy.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_destroy.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_destroy (pthread_cond_t *cond)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_destroy_internal (cond);
-}
-versioned_symbol (libpthread, __pthread_cond_destroy, =
pthread_cond_destroy,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_destroy
-# define __pthread_cond_destroy __pthread_cond_destroy_internal
-# include_next <pthread_cond_destroy.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c
deleted file mode 100644
index ccb3de07ff..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_init.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_init.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_init (pthread_cond_t *cond, const pthread_condattr_t =
*cond_attr)
-{
-  cond_compat_clear (cond);
-  return __pthread_cond_init_internal (cond, cond_attr);
-}
-versioned_symbol (libpthread, __pthread_cond_init, pthread_cond_init,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_init
-# define __pthread_cond_init __pthread_cond_init_internal
-# include_next <pthread_cond_init.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c
deleted file mode 100644
index 2bf32af933..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_signal.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_signal.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_signal (pthread_cond_t *cond)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_signal_internal (cond);
-}
-versioned_symbol (libpthread, __pthread_cond_signal, =
pthread_cond_signal,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_signal
-# define __pthread_cond_signal __pthread_cond_signal_internal
-# include_next <pthread_cond_signal.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c =
b/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c
deleted file mode 100644
index 1cc2fc15d4..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <pthread_cond_wait.c>
-#else
-# include <pthread.h>
-# include <pthreadP.h>
-# include <internaltypes.h>
-# include <shlib-compat.h>
-int
-__pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex)
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_wait_internal (cond, mutex);
-}
-versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait,
-                  GLIBC_2_3_2);
-int
-__pthread_cond_timedwait (cond, mutex, abstime)
-     pthread_cond_t *cond;
-     pthread_mutex_t *mutex;
-     const struct timespec *abstime;
-{
-  cond_compat_check_and_clear (cond);
-  return __pthread_cond_timedwait_internal (cond, mutex, abstime);
-}
-versioned_symbol (libpthread, __pthread_cond_timedwait, =
pthread_cond_timedwait,
-                  GLIBC_2_3_2);
-# undef versioned_symbol
-# define versioned_symbol(lib, local, symbol, version)
-# undef __pthread_cond_wait
-# define __pthread_cond_wait __pthread_cond_wait_internal
-# undef __pthread_cond_timedwait
-# define __pthread_cond_timedwait __pthread_cond_timedwait_internal
-# include_next <pthread_cond_wait.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/setcontext.S =
b/sysdeps/unix/sysv/linux/hppa/setcontext.S
index 3f4da7938f..92cb204f8d 100644
--- a/sysdeps/unix/sysv/linux/hppa/setcontext.S
+++ b/sysdeps/unix/sysv/linux/hppa/setcontext.S
@@ -26,8 +26,11 @@
 ENTRY(__setcontext)
 	/* Prologue */
 	stwm	%r3, 64(%sp)
+	.cfi_def_cfa_offset -64
+	.cfi_offset 3, 0
 #ifdef PIC
 	stw	%r19, -32(%sp)
+	.cfi_offset 19, 32
 #endif
=20
 	/* Save ucp.  */
@@ -141,7 +144,7 @@ ENTRY(__setcontext)
=20
 	/* No further context available. Exit now.  */
 	bl	HIDDEN_JUMPTARGET(exit), %r2
-	ldi	-1, %r26
+	ldi	0, %r26
=20
=20
 .Lerror:
diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h =
b/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
index 5ea297267f..8b7f2b2095 100644
--- a/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
+++ b/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
@@ -62,12 +62,11 @@
 	ENTRY (__##syscall_name##_nocancel)				=
\
 	DOARGS_##args					ASM_LINE_SEP	=
\
 	stwm TREG, 64(%sp)				ASM_LINE_SEP	=
\
+	.cfi_def_cfa_offset -64				ASM_LINE_SEP	=
\
 	.cfi_offset TREG, 0				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	=
\
 	stw %sp, -4(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 30, -4				ASM_LINE_SEP	=
\
 	stw %r19, -32(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 19, -32				ASM_LINE_SEP	=
\
+	.cfi_offset 19, 32				ASM_LINE_SEP	=
\
 	/* Save r19 */					ASM_LINE_SEP	=
\
 	SAVE_PIC(TREG)					ASM_LINE_SEP	=
\
 	/* Do syscall, delay loads # */			ASM_LINE_SEP	=
\
@@ -91,21 +90,19 @@ L(pre_nc_end):						=
ASM_LINE_SEP	\
 	/* No need to LOAD_PIC */			ASM_LINE_SEP	=
\
 	/* Undo frame */				ASM_LINE_SEP	=
\
 	ldwm -64(%sp),TREG				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	=
\
 	/* Restore rp before exit */			ASM_LINE_SEP	=
\
 	ldw -20(%sp), %rp				ASM_LINE_SEP	=
\
-	.cfi_restore 2					ASM_LINE_SEP	=
\
 	ret						ASM_LINE_SEP	=
\
 	END(__##syscall_name##_nocancel)		ASM_LINE_SEP	=
\
 	/**********************************************/ASM_LINE_SEP	=
\
 	ENTRY (name)							=
\
 	DOARGS_##args					ASM_LINE_SEP	=
\
 	stwm TREG, 64(%sp)				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset 64			ASM_LINE_SEP	=
\
+	.cfi_def_cfa_offset -64				ASM_LINE_SEP	=
\
+	.cfi_offset TREG, 0				ASM_LINE_SEP	=
\
 	stw %sp, -4(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 30, -4				ASM_LINE_SEP	=
\
 	stw %r19, -32(%sp)				ASM_LINE_SEP	=
\
-	.cfi_offset 19, -32				ASM_LINE_SEP	=
\
+	.cfi_offset 19, 32				ASM_LINE_SEP	=
\
 	/* Done setting up frame, continue... */	ASM_LINE_SEP	=
\
 	SINGLE_THREAD_P					ASM_LINE_SEP	=
\
 	cmpib,<>,n 0,%ret0,L(pseudo_cancel)		ASM_LINE_SEP	=
\
@@ -168,40 +165,32 @@ L(pre_end):						=
ASM_LINE_SEP	\
 	/* No need to LOAD_PIC */			ASM_LINE_SEP	=
\
 	/* Undo frame */				ASM_LINE_SEP	=
\
 	ldwm -64(%sp),TREG				ASM_LINE_SEP	=
\
-	.cfi_adjust_cfa_offset -64			ASM_LINE_SEP	=
\
 	/* Restore rp before exit */			ASM_LINE_SEP	=
\
-	ldw -20(%sp), %rp				ASM_LINE_SEP	=
\
-	.cfi_restore 2					ASM_LINE_SEP
+	ldw -20(%sp), %rp				ASM_LINE_SEP
=20
 /* Save arguments into our frame */
 # define PUSHARGS_0	/* nothing to do */
 # define PUSHARGS_1	PUSHARGS_0 stw %r26, -36(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 26, -36			=
ASM_LINE_SEP
+			.cfi_offset 26, 28			=
ASM_LINE_SEP
 # define PUSHARGS_2	PUSHARGS_1 stw %r25, -40(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 25, -40			=
ASM_LINE_SEP
+			.cfi_offset 25, 24			=
ASM_LINE_SEP
 # define PUSHARGS_3	PUSHARGS_2 stw %r24, -44(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 24, -44			=
ASM_LINE_SEP
+			.cfi_offset 24, 20			=
ASM_LINE_SEP
 # define PUSHARGS_4	PUSHARGS_3 stw %r23, -48(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 23, -48			=
ASM_LINE_SEP
+			.cfi_offset 23, 16			=
ASM_LINE_SEP
 # define PUSHARGS_5	PUSHARGS_4 stw %r22, -52(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 22, -52			=
ASM_LINE_SEP
+			.cfi_offset 22, 12			=
ASM_LINE_SEP
 # define PUSHARGS_6	PUSHARGS_5 stw %r21, -56(%sr0,%sp)	=
ASM_LINE_SEP	\
-			.cfi_offset 21, -56			=
ASM_LINE_SEP
+			.cfi_offset 21, 8			=
ASM_LINE_SEP
=20
 /* Bring them back from the stack */
 # define POPARGS_0	/* nothing to do */
-# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	=
ASM_LINE_SEP	\
-			.cfi_restore 26				=
ASM_LINE_SEP
-# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	=
ASM_LINE_SEP	\
-			.cfi_restore 25				=
ASM_LINE_SEP
-# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	=
ASM_LINE_SEP	\
-			.cfi_restore 24				=
ASM_LINE_SEP
-# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	=
ASM_LINE_SEP	\
-			.cfi_restore 23				=
ASM_LINE_SEP
-# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	=
ASM_LINE_SEP	\
-			.cfi_restore 22				=
ASM_LINE_SEP
-# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	=
ASM_LINE_SEP	\
-			.cfi_restore 21				=
ASM_LINE_SEP
+# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	=
ASM_LINE_SEP
+# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	=
ASM_LINE_SEP
+# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	=
ASM_LINE_SEP
+# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	=
ASM_LINE_SEP
+# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	=
ASM_LINE_SEP
+# define POPARGS_6	POPARGS_5 ldw -56(%sr0,%sp), %r21	=
ASM_LINE_SEP
=20
 # if IS_IN (libpthread)
 #  ifdef PIC
diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep.h =
b/sysdeps/unix/sysv/linux/hppa/sysdep.h
index d8dd0431a4..c0cd59e9f5 100644
--- a/sysdeps/unix/sysv/linux/hppa/sysdep.h
+++ b/sysdeps/unix/sysv/linux/hppa/sysdep.h
@@ -49,11 +49,9 @@
    to another function */
 #define TREG 4
 #define SAVE_PIC(SREG) \
-	copy %r19, SREG ASM_LINE_SEP	\
-	.cfi_register 19, SREG
+	copy %r19, SREG
 #define LOAD_PIC(LREG) \
-	copy LREG , %r19 ASM_LINE_SEP	\
-	.cfi_restore 19
+	copy LREG , %r19
 /* Inline assembly defines */
 #define TREG_ASM "%r4" /* Cant clobber r3, it holds framemarker */
 #define SAVE_ASM_PIC	"       copy %%r19, %" TREG_ASM "\n"
@@ -292,12 +290,11 @@
 #define DO_CALL(syscall_name, args)				\
 	/* Create a frame */			ASM_LINE_SEP	\
 	stwm TREG, 64(%sp)			ASM_LINE_SEP	\
+	.cfi_def_cfa_offset -64			ASM_LINE_SEP	\
 	.cfi_offset TREG, 0			ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset 64		ASM_LINE_SEP	\
 	stw %sp, -4(%sp)			ASM_LINE_SEP	\
-	.cfi_offset 30, -4			ASM_LINE_SEP	\
 	stw %r19, -32(%sp)			ASM_LINE_SEP	\
-	.cfi_offset 19, -32			ASM_LINE_SEP	\
+	.cfi_offset 19, 32			ASM_LINE_SEP	\
 	/* Save r19 */				ASM_LINE_SEP	\
 	SAVE_PIC(TREG)				ASM_LINE_SEP	\
 	/* Do syscall, delay loads # */		ASM_LINE_SEP	\
@@ -320,10 +317,8 @@
 L(pre_end):					ASM_LINE_SEP	\
 	/* Restore our frame, restoring TREG */	ASM_LINE_SEP	\
 	ldwm -64(%sp), TREG			ASM_LINE_SEP	\
-	.cfi_adjust_cfa_offset -64		ASM_LINE_SEP	\
 	/* Restore return pointer */		ASM_LINE_SEP	\
-	ldw -20(%sp),%rp			ASM_LINE_SEP	\
-	.cfi_restore 2				ASM_LINE_SEP
+	ldw -20(%sp),%rp			ASM_LINE_SEP
=20
 /* We do nothing with the return, except hand it back to someone else =
*/
 #undef  DO_CALL_NOERRNO

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From - Thu Nov 08 21:39:49 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc architecture fix for v4.11
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Hi Linus,

please pull one important fix for the parisc architecture for kernel 4.11 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.11-5

One patch which fixes get_user() for 64-bit values on 32-bit kernels. Up
to now we lost the upper 32-bits of the returned 64-bit value.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (1):
      parisc: Fix get_user() for 64-bit value on 32-bit kernel

 arch/parisc/include/asm/uaccess.h | 86 +++++++++++++++++++++++++--------------
 1 file changed, 55 insertions(+), 31 deletions(-)
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From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ide,gmane.linux.kernel
Subject: Re: [PATCH] ide: don't call memcpy with the same source and destination
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On Friday, April 14, 2017 02:35:33 PM Mikulas Patocka wrote:
> The parisc architecture recently reimplemented the memcpy function and
> their reimplementation crashed when source and destination overlapped.
> 
> The crash happened in the function ide_complete_cmd where memcpy is called
> with the same source and destination pointer. According to the C
> specification, memcpy behavior is undefined if the source and destination
> range overlaps. This patches fixes the undefined behavior.
> 
> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

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From - Thu Nov 08 21:39:49 2018
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From: Arnd Bergmann <arnd@arndb.de>
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Subject: [PATCH] fbdev: sti: don't select CONFIG_VT
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While working on another build error, I ran into several variations of
this dependency loop:

subsection "Kconfig recursive dependency limitations"
drivers/input/Kconfig:8:	symbol INPUT is selected by VT
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/tty/Kconfig:12:	symbol VT is selected by FB_STI
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/video/fbdev/Kconfig:677:	symbol FB_STI depends on FB
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/video/fbdev/Kconfig:5:	symbol FB is selected by DRM_KMS_FB_HELPER
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpu/drm/Kconfig:72:	symbol DRM_KMS_FB_HELPER is selected by DRM_KMS_CMA_HELPER
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpu/drm/Kconfig:137:	symbol DRM_KMS_CMA_HELPER is selected by DRM_HDLCD
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpu/drm/arm/Kconfig:6:	symbol DRM_HDLCD depends on OF
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/of/Kconfig:4:	symbol OF is selected by X86_INTEL_CE
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
arch/x86/Kconfig:523:	symbol X86_INTEL_CE depends on X86_IO_APIC
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
arch/x86/Kconfig:1011:	symbol X86_IO_APIC depends on X86_LOCAL_APIC
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
arch/x86/Kconfig:1005:	symbol X86_LOCAL_APIC depends on X86_UP_APIC
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
arch/x86/Kconfig:980:	symbol X86_UP_APIC depends on PCI_MSI
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/pci/Kconfig:11:	symbol PCI_MSI is selected by AMD_IOMMU
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/iommu/Kconfig:106:	symbol AMD_IOMMU depends on IOMMU_SUPPORT
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/iommu/Kconfig:5:	symbol IOMMU_SUPPORT is selected by DRM_ETNAVIV
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpu/drm/etnaviv/Kconfig:2:	symbol DRM_ETNAVIV depends on THERMAL
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/thermal/Kconfig:5:	symbol THERMAL is selected by ACPI_VIDEO
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/acpi/Kconfig:183:	symbol ACPI_VIDEO is selected by INPUT

This doesn't currently show up as I fixed the 'THERMAL' part of it,
but I noticed that the FB_STI dependency should not be there but
was introduced by slightly incorrect bug-fix patch that tried to
fix a link error.

Instead of selecting 'VT' to make us enter the drivers/video/console
directory at compile-time, it's sufficient to build the
drivers/video/console/sticore.c file by adding its directory
to when CONFIG_FB_STI is enabled. Alternatively, we could move the
sticore code to another directory that is always built when we
have at STI_CONSOLE or FB_STI enabled.

Fixes: 17085a934592 ("parisc: stifb: should depend on STI_CONSOLE")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/video/Makefile      | 1 +
 drivers/video/fbdev/Kconfig | 2 --
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 9ad3c17d6456..445b2c230b56 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -2,6 +2,7 @@ obj-$(CONFIG_VGASTATE)            += vgastate.o
 obj-$(CONFIG_HDMI)                += hdmi.o
 
 obj-$(CONFIG_VT)		  += console/
+obj-$(CONFIG_FB_STI)		  += console/
 obj-$(CONFIG_LOGO)		  += logo/
 obj-y				  += backlight/
 
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index 4e36e14d878f..a5797a697114 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -680,8 +680,6 @@ config FB_STI
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
-	select STI_CONSOLE
-	select VT
 	default y
 	---help---
 	  STI refers to the HP "Standard Text Interface" which is a set of
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From - Thu Nov 08 21:39:49 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH] fbdev: sti: don't select CONFIG_VT
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On Friday, April 28, 2017 09:51:25 PM Arnd Bergmann wrote:
> While working on another build error, I ran into several variations of
> this dependency loop:
> 
> subsection "Kconfig recursive dependency limitations"
> drivers/input/Kconfig:8:	symbol INPUT is selected by VT
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> drivers/tty/Kconfig:12:	symbol VT is selected by FB_STI
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> drivers/video/fbdev/Kconfig:677:	symbol FB_STI depends on FB
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> drivers/video/fbdev/Kconfig:5:	symbol FB is selected by DRM_KMS_FB_HELPER
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> drivers/gpu/drm/Kconfig:72:	symbol DRM_KMS_FB_HELPER is selected by DRM_KMS_CMA_HELPER
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> drivers/gpu/drm/Kconfig:137:	symbol DRM_KMS_CMA_HELPER is selected by DRM_HDLCD
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> drivers/gpu/drm/arm/Kconfig:6:	symbol DRM_HDLCD depends on OF
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> drivers/of/Kconfig:4:	symbol OF is selected by X86_INTEL_CE
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> arch/x86/Kconfig:523:	symbol X86_INTEL_CE depends on X86_IO_APIC
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> arch/x86/Kconfig:1011:	symbol X86_IO_APIC depends on X86_LOCAL_APIC
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> arch/x86/Kconfig:1005:	symbol X86_LOCAL_APIC depends on X86_UP_APIC
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> arch/x86/Kconfig:980:	symbol X86_UP_APIC depends on PCI_MSI
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> drivers/pci/Kconfig:11:	symbol PCI_MSI is selected by AMD_IOMMU
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> drivers/iommu/Kconfig:106:	symbol AMD_IOMMU depends on IOMMU_SUPPORT
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> drivers/iommu/Kconfig:5:	symbol IOMMU_SUPPORT is selected by DRM_ETNAVIV
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> drivers/gpu/drm/etnaviv/Kconfig:2:	symbol DRM_ETNAVIV depends on THERMAL
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> drivers/thermal/Kconfig:5:	symbol THERMAL is selected by ACPI_VIDEO
> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> drivers/acpi/Kconfig:183:	symbol ACPI_VIDEO is selected by INPUT
> 
> This doesn't currently show up as I fixed the 'THERMAL' part of it,
> but I noticed that the FB_STI dependency should not be there but
> was introduced by slightly incorrect bug-fix patch that tried to
> fix a link error.
> 
> Instead of selecting 'VT' to make us enter the drivers/video/console
> directory at compile-time, it's sufficient to build the
> drivers/video/console/sticore.c file by adding its directory
> to when CONFIG_FB_STI is enabled. Alternatively, we could move the
> sticore code to another directory that is always built when we
> have at STI_CONSOLE or FB_STI enabled.
> 
> Fixes: 17085a934592 ("parisc: stifb: should depend on STI_CONSOLE")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Patch queued for 4.12, thanks.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics



From - Thu Nov 08 21:39:49 2018
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From: David Miller <davem@davemloft.net>
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Subject: Re: [PATCH] ide: don't call memcpy with the same source and
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From: Mikulas Patocka <mpatocka@redhat.com>
Date: Fri, 14 Apr 2017 14:35:33 -0400 (EDT)

> The parisc architecture recently reimplemented the memcpy function and
> their reimplementation crashed when source and destination overlapped.
> 
> The crash happened in the function ide_complete_cmd where memcpy is called
> with the same source and destination pointer. According to the C
> specification, memcpy behavior is undefined if the source and destination
> range overlaps. This patches fixes the undefined behavior.
> 
> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

Applied.
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Subject: [PATCH] parisc: Add Page Deallocation Table (PDT) support
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The firmare in most parisc machines maintains a Page Deallocation Table (PDT)
which holds a list of physical memory addresses where hardware detected memory
errors (single bit and double bit errors).

This patch adds the missing PDC firmware calls and the logic to read the PDT
from firmware, report all current PDT entries and exclude the reported bad
memory from being used by Linux.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 451906d..7569627 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -6,6 +6,8 @@
 #if !defined(__ASSEMBLY__)
 
 extern int pdc_type;
+extern unsigned long parisc_cell_num; /* cell number the CPU runs on (PAT) */
+extern unsigned long parisc_cell_loc; /* cell location of CPU (PAT)	   */
 
 /* Values for pdc_type */
 #define PDC_TYPE_ILLEGAL	-1
@@ -143,6 +145,18 @@ struct pdc_btlb_info {	/* PDC_BLOCK_TLB, return of PDC_BTLB_INFO */
 
 #endif /* !CONFIG_PA20 */
 
+struct pdc_mem_retinfo { /* PDC_MEM/PDC_MEM_MEMINFO (return info) */
+	unsigned long pdt_size;
+	unsigned long pdt_entries;
+	unsigned long pdt_status;
+	unsigned long first_dbe_loc;
+	unsigned long good_mem;
+};
+
+struct pdc_mem_read_pdt { /* PDC_MEM/PDC_MEM_READ_PDT (return info) */
+	unsigned long pdt_entries;
+};
+
 #ifdef CONFIG_64BIT
 struct pdc_memory_table_raddr { /* PDC_MEM/PDC_MEM_TABLE (return info) */
 	unsigned long entries_returned;
@@ -301,6 +315,10 @@ int pdc_get_initiator(struct hardware_path *, struct pdc_initiator *);
 int pdc_tod_read(struct pdc_tod *tod);
 int pdc_tod_set(unsigned long sec, unsigned long usec);
 
+void pdc_pdt_init(void);	/* in pdt.c */
+int pdc_mem_pdt_info(struct pdc_mem_retinfo *rinfo);
+int pdc_mem_pdt_read_entries(struct pdc_mem_read_pdt *rpdt_read,
+		unsigned long *pdt_entries_ptr);
 #ifdef CONFIG_64BIT
 int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr,
 		struct pdc_memory_table *tbl, unsigned long entries);
diff --git a/arch/parisc/include/asm/pdcpat.h b/arch/parisc/include/asm/pdcpat.h
index e1d2890..32e105f 100644
--- a/arch/parisc/include/asm/pdcpat.h
+++ b/arch/parisc/include/asm/pdcpat.h
@@ -147,9 +147,9 @@
 #define PDC_PAT_MEM_CELL_CLEAR  	6L /* Clear PDT For Cell           */
 #define PDC_PAT_MEM_CELL_READ   	7L /* Read PDT entries For Cell    */
 #define PDC_PAT_MEM_CELL_RESET  	8L /* Reset clear bit For Cell     */
-#define PDC_PAT_MEM_SETGM	  	9L /* Set Golden Memory value      */
-#define PDC_PAT_MEM_ADD_PAGE    	10L /* ADDs a page to the cell      */
-#define PDC_PAT_MEM_ADDRESS     	11L /* Get Physical Location From   */
+#define PDC_PAT_MEM_SETGM		9L /* Set Good Memory value        */
+#define PDC_PAT_MEM_ADD_PAGE		10L /* ADDs a page to the cell      */
+#define PDC_PAT_MEM_ADDRESS		11L /* Get Physical Location From   */
                                     		 /* Memory Address               */
 #define PDC_PAT_MEM_GET_TXT_SIZE   	12L /* Get Formatted Text Size   */
 #define PDC_PAT_MEM_GET_PD_TXT     	13L /* Get PD Formatted Text     */
@@ -212,6 +212,23 @@ struct pdc_pat_cpu_num {
 	unsigned long cpu_loc;
 };
 
+struct pdc_pat_mem_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_PD_INFO (return info) */
+	unsigned int ke;	/* bit 0: memory inside good memory? */
+	unsigned int current_pdt_entries:16;
+	unsigned int max_pdt_entries:16;
+	unsigned long Cs_bitmap;
+	unsigned long Ic_bitmap;
+	unsigned long good_mem;
+	unsigned long first_dbe_loc; /* first location of double bit error */
+	unsigned long clear_time; /* last PDT clear time (since Jan 1970) */
+};
+
+struct pdc_pat_mem_read_pd_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_PD_READ */
+	unsigned long actual_count_bytes;
+	unsigned long pdt_entries;
+};
+
+
 struct pdc_pat_pd_addr_map_entry {
 	unsigned char entry_type;       /* 1 = Memory Descriptor Entry Type */
 	unsigned char reserve1[5];
@@ -293,15 +310,15 @@ extern int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, unsigned lon
 
 extern int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr, unsigned long count, unsigned long offset);
 
-
 extern int pdc_pat_io_pci_cfg_read(unsigned long pci_addr, int pci_size, u32 *val); 
 extern int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val); 
 
-
-/* Flag to indicate this is a PAT box...don't use this unless you
-** really have to...it might go away some day.
-*/
-extern int pdc_pat;     /* arch/parisc/kernel/inventory.c */
+extern int pdc_pat_mem_pdt_info(struct pdc_pat_mem_retinfo *rinfo);
+extern int pdc_pat_mem_read_cell_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
+		unsigned long *pdt_entries_ptr, unsigned long max_entries);
+extern int pdc_pat_mem_read_pd_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
+		unsigned long *pdt_entries_ptr, unsigned long count,
+		unsigned long offset);
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 3a4ed9f..71ca86c 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -511,6 +511,9 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 
 #define pte_same(A,B)	(pte_val(A) == pte_val(B))
 
+struct seq_file;
+extern void arch_report_meminfo(struct seq_file *m);
+
 #endif /* !__ASSEMBLY__ */
 
 
diff --git a/arch/parisc/include/uapi/asm/pdc.h b/arch/parisc/include/uapi/asm/pdc.h
index 0609ff1..1f30b49 100644
--- a/arch/parisc/include/uapi/asm/pdc.h
+++ b/arch/parisc/include/uapi/asm/pdc.h
@@ -131,12 +131,12 @@
 #define PDC_TLB_SETUP		1	/* set up miss handling 	*/
 
 #define PDC_MEM		20		/* Manage memory		*/
-#define PDC_MEM_MEMINFO		0
-#define PDC_MEM_ADD_PAGE	1
-#define PDC_MEM_CLEAR_PDT	2
-#define PDC_MEM_READ_PDT	3
-#define PDC_MEM_RESET_CLEAR	4
-#define PDC_MEM_GOODMEM		5
+#define PDC_MEM_MEMINFO		0	/* Return PDT info		*/
+#define PDC_MEM_ADD_PAGE	1	/* Add page to PDT		*/
+#define PDC_MEM_CLEAR_PDT	2	/* Clear PDT			*/
+#define PDC_MEM_READ_PDT	3	/* Read PDT entry		*/
+#define PDC_MEM_RESET_CLEAR	4	/* Reset PDT clear flag		*/
+#define PDC_MEM_GOODMEM		5	/* Set good_mem value		*/
 #define PDC_MEM_TABLE		128	/* Non contig mem map (sprockets) */
 #define PDC_MEM_RETURN_ADDRESS_TABLE	PDC_MEM_TABLE
 #define PDC_MEM_GET_MEMORY_SYSTEM_TABLES_SIZE	131
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 69a1118..c4294df 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -4,7 +4,7 @@
 
 extra-y			:= head.o vmlinux.lds
 
-obj-y	     	:= cache.o pacache.o setup.o traps.o time.o irq.o \
+obj-y	     	:= cache.o pacache.o setup.o pdt.o traps.o time.o irq.o \
 		   pa7300lc.o syscall.o entry.o sys_parisc.o firmware.o \
 		   ptrace.o hardware.o inventory.o drivers.o \
 		   signal.o hpmc.o real2.o parisc_ksyms.o unaligned.o \
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 9d797ae..9819025 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -957,6 +957,41 @@ int pdc_tod_read(struct pdc_tod *tod)
 }
 EXPORT_SYMBOL(pdc_tod_read);
 
+int pdc_mem_pdt_info(struct pdc_mem_retinfo *rinfo)
+{
+	int retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_MEM, PDC_MEM_MEMINFO, __pa(pdc_result), 0);
+	convert_to_wide(pdc_result);
+	memcpy(rinfo, pdc_result, sizeof(*rinfo));
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
+
+int pdc_mem_pdt_read_entries(struct pdc_mem_read_pdt *pret,
+		unsigned long *pdt_entries_ptr)
+{
+	int retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_MEM, PDC_MEM_READ_PDT, __pa(pdc_result),
+			__pa(pdc_result2));
+	if (retval == PDC_OK) {
+		convert_to_wide(pdc_result);
+		memcpy(pret, pdc_result, sizeof(*pret));
+		convert_to_wide(pdc_result2);
+		memcpy(pdt_entries_ptr, pdc_result2,
+			pret->pdt_entries * sizeof(*pdt_entries_ptr));
+	}
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
+
 /**
  * pdc_tod_set - Set the Time-Of-Day clock.
  * @sec: The number of seconds since epoch.
@@ -1383,6 +1418,79 @@ int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val)
 
 	return retval;
 }
+
+/**
+ * pdc_pat_mem_pdc_info - Retrieve information about page deallocation table
+ * @rinfo: memory pdt information
+ *
+ */
+int pdc_pat_mem_pdt_info(struct pdc_pat_mem_retinfo *rinfo)
+{
+	int retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_PD_INFO,
+			__pa(&pdc_result));
+	if (retval == PDC_OK)
+		memcpy(rinfo, &pdc_result, sizeof(*rinfo));
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
+
+/**
+ * pdc_pat_mem_read_cell_pdt - Read PDT entries from (old) PAT firmware
+ * @pret: array of PDT entries
+ * @pdt_entries_ptr: ptr to hold number of PDT entries
+ * @max_entries: maximum number of entries to be read
+ *
+ */
+int pdc_pat_mem_read_cell_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
+		unsigned long *pdt_entries_ptr, unsigned long max_entries)
+{
+	int retval;
+	unsigned long flags, entries;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	/* PDC_PAT_MEM_CELL_READ is available on early PAT machines only */
+	retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_CELL_READ,
+			__pa(&pdc_result), parisc_cell_num, __pa(&pdc_result2));
+
+	if (retval == PDC_OK) {
+		/* build up return value as for PDC_PAT_MEM_PD_READ */
+		entries = min(pdc_result[0], max_entries);
+		pret->pdt_entries = entries;
+		pret->actual_count_bytes = entries * sizeof(unsigned long);
+		memcpy(pdt_entries_ptr, &pdc_result2, pret->actual_count_bytes);
+	}
+
+	spin_unlock_irqrestore(&pdc_lock, flags);
+	WARN_ON(retval == PDC_OK && pdc_result[0] > max_entries);
+
+	return retval;
+}
+/**
+ * pdc_pat_mem_read_pd_pdt - Read PDT entries from (newer) PAT firmware
+ * @pret: array of PDT entries
+ * @pdt_entries_ptr: ptr to hold number of PDT entries
+ *
+ */
+int pdc_pat_mem_read_pd_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
+		unsigned long *pdt_entries_ptr, unsigned long count,
+		unsigned long offset)
+{
+	int retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_PD_READ,
+		__pa(&pret), __pa(pdt_entries_ptr),
+		count, offset);
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
 #endif /* CONFIG_64BIT */
 
 
diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index c9789d9..b0fe19a 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -40,6 +40,11 @@
 
 int pdc_type __read_mostly = PDC_TYPE_ILLEGAL;
 
+/* cell number and location (PAT firmware only) */
+unsigned long parisc_cell_num __read_mostly;
+unsigned long parisc_cell_loc __read_mostly;
+
+
 void __init setup_pdc(void)
 {
 	long status;
@@ -78,6 +83,10 @@ void __init setup_pdc(void)
 	if (status == PDC_OK) {
 		pdc_type = PDC_TYPE_PAT;
 		pr_cont("64 bit PAT.\n");
+		parisc_cell_num = cell_info.cell_num;
+		parisc_cell_loc = cell_info.cell_loc;
+		pr_info("PAT: Running on cell %lu and location %lu.\n",
+			parisc_cell_num, parisc_cell_loc);
 		return;
 	}
 #endif
diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
new file mode 100644
index 0000000..fcc895a
--- /dev/null
+++ b/arch/parisc/kernel/pdt.c
@@ -0,0 +1,141 @@
+/*
+ *    Page Deallocation Table (PDT) support
+ *
+ *    The Page Deallocation Table (PDT) holds a table with pointers to bad
+ *    memory (broken RAM modules) which is maintained by firmware.
+ *
+ *    Copyright 2017 by Helge Deller <deller@gmx.de>
+ *
+ *    TODO:
+ *    - check regularily for new bad memory
+ *    - add userspace interface with procfs or sysfs
+ *    - increase number of PDT entries dynamically
+ */
+
+#include <linux/memblock.h>
+#include <linux/seq_file.h>
+
+#include <asm/pdc.h>
+#include <asm/pdcpat.h>
+#include <asm/sections.h>
+#include <asm/pgtable.h>
+
+enum pdt_access_type {
+	PDT_NONE,
+	PDT_PDC,
+	PDT_PAT_NEW,
+	PDT_PAT_OLD
+};
+
+static enum pdt_access_type pdt_type;
+
+/* global PDT status information */
+static struct pdc_mem_retinfo pdt_status;
+
+#define MAX_PDT_TABLE_SIZE	PAGE_SIZE
+#define MAX_PDT_ENTRIES		(MAX_PDT_TABLE_SIZE / sizeof(unsigned long))
+static unsigned long pdt_entry[MAX_PDT_ENTRIES] __page_aligned_bss;
+
+
+/* report PDT entries via /proc/meminfo */
+void arch_report_meminfo(struct seq_file *m)
+{
+	if (pdt_type == PDT_NONE)
+		return;
+
+	seq_printf(m, "PDT max entries: %7lu\n",
+			pdt_status.pdt_size);
+	seq_printf(m, "PDT entries    : %7lu\n",
+			pdt_status.pdt_entries);
+}
+
+/*
+ * pdc_pdt_init()
+ *
+ * Initialize kernel PDT structures, read initial PDT table from firmware,
+ * report all current PDT entries and mark bad memory with memblock_reserve()
+ * to avoid that the kernel will use broken memory areas.
+ *
+ */
+void __init pdc_pdt_init(void)
+{
+	int ret, i;
+	unsigned long entries;
+	struct pdc_mem_read_pdt pdt_read_ret;
+
+	if (is_pdc_pat()) {
+		struct pdc_pat_mem_retinfo pat_rinfo;
+
+		pdt_type = PDT_PAT_NEW;
+		ret = pdc_pat_mem_pdt_info(&pat_rinfo);
+		pdt_status.pdt_size = pat_rinfo.max_pdt_entries;
+		pdt_status.pdt_entries = pat_rinfo.current_pdt_entries;
+		pdt_status.pdt_status = 0;
+		pdt_status.first_dbe_loc = pat_rinfo.first_dbe_loc;
+		pdt_status.good_mem = pat_rinfo.good_mem;
+	} else {
+		pdt_type = PDT_PDC;
+		ret = pdc_mem_pdt_info(&pdt_status);
+	}
+
+	if (ret != PDC_OK) {
+		pdt_type = PDT_NONE;
+		pr_info("PDT: Firmware does not provide any page deallocation"
+			" information.\n");
+		return;
+	}
+
+	entries = pdt_status.pdt_entries;
+	WARN_ON(entries > MAX_PDT_ENTRIES);
+
+	pr_info("PDT: size = %lu, entries = %lu, status = %lu, dbe_loc = 0x%lx,"
+		" good_mem = %lu\n",
+			pdt_status.pdt_size, pdt_status.pdt_entries,
+			pdt_status.pdt_status, pdt_status.first_dbe_loc,
+			pdt_status.good_mem);
+
+	if (entries == 0) {
+		pr_info("PDT: Firmware reports no faulty memory.\n");
+		return;
+	}
+
+	if (pdt_status.first_dbe_loc &&
+		pdt_status.first_dbe_loc <= __pa((unsigned long)&_end))
+		pr_crit("CRITICAL: Bad memory inside kernel memory area!\n");
+
+	pr_warn("PDT: Firmware reports %lu entries of faulty memory:\n",
+		entries);
+
+	if (pdt_type == PDT_PDC)
+		ret = pdc_mem_pdt_read_entries(&pdt_read_ret, pdt_entry);
+	else {
+#ifdef CONFIG_64BIT
+		struct pdc_pat_mem_read_pd_retinfo pat_pret;
+
+		ret = pdc_pat_mem_read_cell_pdt(&pat_pret, pdt_entry,
+			MAX_PDT_ENTRIES);
+		if (ret != PDC_OK) {
+			pdt_type = PDT_PAT_OLD;
+			ret = pdc_pat_mem_read_pd_pdt(&pat_pret, pdt_entry,
+				MAX_PDT_TABLE_SIZE, 0);
+		}
+#else
+		ret = PDC_BAD_PROC;
+#endif
+	}
+
+	if (ret != PDC_OK) {
+		pdt_type = PDT_NONE;
+		pr_debug("PDT type %d, retval = %d\n", pdt_type, ret);
+		return;
+	}
+
+	for (i = 0; i < pdt_status.pdt_entries; i++) {
+		pr_warn("PDT: BAD PAGE at 0x%08lx (error_tye = %lu)\n",
+			pdt_entry[i] & PAGE_MASK,
+			pdt_entry[i] & 1);
+
+		/* mark memory page bad */
+		memblock_reserve(pdt_entry[i] & PAGE_MASK, PAGE_SIZE);
+	}
+}
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 66f3a63..1ca9a2b 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -381,6 +381,9 @@ static void __init setup_bootmem(void)
 		request_resource(res, &data_resource);
 	}
 	request_resource(&sysram_resources[0], &pdcdata_resource);
+
+	/* Initialize Page Deallocation Table (PDT) and check for bad memory. */
+	pdc_pdt_init();
 }
 
 static int __init parisc_text_address(unsigned long vaddr)
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From - Thu Nov 08 21:39:50 2018
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From: Colin King <colin.king@canonical.com>
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Subject: [PATCH] parisc: fix spelling mistake: "page_tye" -> "page_type"
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.janitors/44385>

From: Colin Ian King <colin.king@canonical.com>

Trivial fix to spelling mistake in a pr_warn message.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 arch/parisc/kernel/pdt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
index 261e134ee7f8..6362614c5160 100644
--- a/arch/parisc/kernel/pdt.c
+++ b/arch/parisc/kernel/pdt.c
@@ -131,7 +131,7 @@ void __init pdc_pdt_init(void)
 	}
 
 	for (i = 0; i < pdt_status.pdt_entries; i++) {
-		pr_warn("PDT: BAD PAGE at 0x%08lx (error_tye = %lu)\n",
+		pr_warn("PDT: BAD PAGE at 0x%08lx (error_type = %lu)\n",
 			pdt_entry[i] & PAGE_MASK,
 			pdt_entry[i] & 1);
 
-- 
2.11.0

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From - Thu Nov 08 21:39:50 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: fix spelling mistake: "page_tye" -> "page_type"
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On 12.05.2017 07:50, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
> 
> Trivial fix to spelling mistake in a pr_warn message.

Thanks Colin,

Interestingly, your patch is against my for-next git tree which I
haven't pushed upstream yet.
I'll fix it before pushing.

Btw, your patch title is wrong, it should be "error_tye" instead of "patch_tye"...

Thanks,
Helge



> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> ---
>  arch/parisc/kernel/pdt.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
> index 261e134ee7f8..6362614c5160 100644
> --- a/arch/parisc/kernel/pdt.c
> +++ b/arch/parisc/kernel/pdt.c
> @@ -131,7 +131,7 @@ void __init pdc_pdt_init(void)
>  	}
>  
>  	for (i = 0; i < pdt_status.pdt_entries; i++) {
> -		pr_warn("PDT: BAD PAGE at 0x%08lx (error_tye = %lu)\n",
> +		pr_warn("PDT: BAD PAGE at 0x%08lx (error_type = %lu)\n",
>  			pdt_entry[i] & PAGE_MASK,
>  			pdt_entry[i] & 1);
>  
> 

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From - Thu Nov 08 21:39:50 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Stop CPUs via PAT firmware before system halt or
 reboot.
Date: Fri, 12 May 2017 18:55:13 +0200
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Dave reported that he had issued a "shutdown -r" and a panic occurred during
the reboot while all CPUs were still up. After this, stall messages were output
to console after the firmware version was printed.

To avoid that issue, add functions to call PAT firmware to stop all CPUs (with
the exception of the currently running CPU) before a panic reboot or a system
halt is issued.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pdcpat.h b/arch/parisc/include/asm/pdcpat.h
index 32e105f..0ef789e 100644
--- a/arch/parisc/include/asm/pdcpat.h
+++ b/arch/parisc/include/asm/pdcpat.h
@@ -307,6 +307,7 @@ extern int pdc_pat_cell_module(unsigned long *actcnt, unsigned long ploc, unsign
 extern int pdc_pat_cell_num_to_loc(void *, unsigned long);
 
 extern int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, unsigned long hpa);
+extern int pdc_pat_cpu_stop_cpu(unsigned long hpa, unsigned long hpa_vec);
 
 extern int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr, unsigned long count, unsigned long offset);
 
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 9819025..3f55db6 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1308,6 +1308,31 @@ int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, unsigned long hpa)
 }
 
 /**
+ * pdc_pat_cpu_stop_cpu - Stop current cpu.
+ * @hpa: The Hard Physical Address of the CPU which should be informed when
+ *       current cpu has stopped.
+ * @hpa_vec: Mask of interrupts which should be signalled on CPU at @hpa.
+ *
+ * Stop the CPU in which the call is made. Flushes caches and purges TLB and
+ * places CPU in a firmware loop. If the CPU is the last in a cell, an
+ * interrupt message is sent to the CPU at @hpa.
+ */
+int pdc_pat_cpu_stop_cpu(unsigned long hpa, unsigned long hpa_vec)
+{
+	int retval;
+	unsigned long flags;
+
+	if (!hpa)
+		hpa_vec = -1UL;
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_PAT_CPU, PDC_PAT_CPU_STOP, hpa, hpa_vec);
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
+
+
+/**
  * pdc_pat_get_irt_size - Retrieve the number of entries in the cell's interrupt table.
  * @num_entries: The return value.
  * @cell_num: The target cell.
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 4516a5b..1615a9a 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -98,6 +98,9 @@ void machine_restart(char *cmd)
 #endif
 	/* set up a new led state on systems shipped with a LED State panel */
 	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
+
+	/* stops all CPUs but the current one */
+	smp_send_stop();
 	
 	/* "Normal" system reset */
 	pdc_do_reset();
@@ -116,6 +119,9 @@ void machine_halt(void)
 	** The LED/ChassisCodes are updated by the led_halt()
 	** function, called by the reboot notifier chain.
 	*/
+
+	/* stops all CPUs but the current one */
+	smp_send_stop();
 }
 
 void (*chassis_power_off)(void);
@@ -126,6 +132,9 @@ void (*chassis_power_off)(void);
  */
 void machine_power_off(void)
 {
+	/* stops all CPUs but the current one */
+	smp_send_stop();
+
 	/* If there is a registered power off handler, call it. */
 	if (chassis_power_off)
 		chassis_power_off();
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 6336510..afd9142 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -42,6 +42,7 @@
 #include <asm/irq.h>		/* for CPU_IRQ_REGION and friends */
 #include <asm/mmu_context.h>
 #include <asm/page.h>
+#include <asm/pdcpat.h>
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
 #include <asm/processor.h>
@@ -112,6 +113,9 @@ halt_processor(void)
 	/* REVISIT : does PM *know* this CPU isn't available? */
 	set_cpu_online(smp_processor_id(), false);
 	local_irq_disable();
+#ifdef CONFIG_64BIT
+	pdc_pat_cpu_stop_cpu(0, -1UL);
+#endif
 	for (;;)
 		;
 }
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Nitpick:

> +	return retval;
> +}
> +
> +
> +/**
>   * pdc_pat_get_irt_size - Retrieve the number of entries in the cell's

Double newline.

Greetings,

Eike
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Hi Linus,

please pull fixes and enhancements for the parisc architecture for kernel 4.12 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.12-1

We added initial support for the Page Deallocation Table (PDT) which is
maintained by firmware and holds the list of memory addresses which have
physical errors.  By checking that list we can instruct Linux to not include
such bad memory regions into the free memory list.

Additionally we improved the detection of CPUs where the internal cr16
cycle clocks are synchronous and as such can be used as high-resolution
clock sources. 

The third enhancement is that we shut down secondary CPUs via firmware before
entering system shutdown or reboot.

The last two patches are trivial and drop unused code and simplify code.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (5):
      parisc: Inline trivial exception code in lusercopy.S
      parisc: Drop per_cpu uaccess related exception_data struct
      parisc: Enhance detection of synchronous cr16 clocksources
      parisc: Add Page Deallocation Table (PDT) support
      parisc: Stop CPUs via PAT firmware before system halt or reboot.

 arch/parisc/include/asm/pdc.h       |  18 +++++
 arch/parisc/include/asm/pdcpat.h    |  36 ++++++---
 arch/parisc/include/asm/pgtable.h   |   3 +
 arch/parisc/include/asm/processor.h |   2 +
 arch/parisc/include/asm/uaccess.h   |  11 ---
 arch/parisc/include/uapi/asm/pdc.h  |  12 +--
 arch/parisc/kernel/Makefile         |   2 +-
 arch/parisc/kernel/asm-offsets.c    |   5 --
 arch/parisc/kernel/firmware.c       | 130 ++++++++++++++++++++++++++++++++
 arch/parisc/kernel/inventory.c      |   9 +++
 arch/parisc/kernel/pdt.c            | 143 ++++++++++++++++++++++++++++++++++++
 arch/parisc/kernel/process.c        |  18 ++++-
 arch/parisc/kernel/processor.c      |   5 +-
 arch/parisc/kernel/smp.c            |   3 +
 arch/parisc/kernel/time.c           |  24 +++++-
 arch/parisc/lib/lusercopy.S         |  25 +++----
 arch/parisc/mm/fault.c              |   9 ---
 arch/parisc/mm/init.c               |   3 +
 18 files changed, 393 insertions(+), 65 deletions(-)
 create mode 100644 arch/parisc/kernel/pdt.c
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Subject: Re: [PATCH] parisc: Stop CPUs via PAT firmware before system halt or reboot.
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On 2017-05-12, at 12:55 PM, Helge Deller wrote:

> Dave reported that he had issued a "shutdown -r" and a panic occurred during
> the reboot while all CPUs were still up. After this, stall messages were output
> to console after the firmware version was printed.
> 
> To avoid that issue, add functions to call PAT firmware to stop all CPUs (with
> the exception of the currently running CPU) before a panic reboot or a system
> halt is issued.

This patch causes a problem with "shutdown -h" on my c8000.  After the system prints
the message that it is okay to power off, the front panel LED shows a flashing red, and pressing
the power button once doesn't power the system down.  Pressing it again causes the system
to reboot.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:39:50 2018
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Subject: Re: [PATCH] parisc: Stop CPUs via PAT firmware before system halt or
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On 15.05.2017 02:42, John David Anglin wrote:
> On 2017-05-12, at 12:55 PM, Helge Deller wrote:
> 
>> Dave reported that he had issued a "shutdown -r" and a panic occurred during
>> the reboot while all CPUs were still up. After this, stall messages were output
>> to console after the firmware version was printed.
>>
>> To avoid that issue, add functions to call PAT firmware to stop all CPUs (with
>> the exception of the currently running CPU) before a panic reboot or a system
>> halt is issued.
> 
> This patch causes a problem with "shutdown -h" on my c8000.  After the system prints
> the message that it is okay to power off, the front panel LED shows a flashing red, and pressing
> the power button once doesn't power the system down.  Pressing it again causes the system
> to reboot.

I noticed that during my testing as well.
It seems that the firmware call stops the whole socket, not just one CPU.
Maybe it's another problem as well?

Anyway, I did included an updated patch [1] in my last git pull request to Linus (which actually
didn't made it into 4.12...).
Can you test this one instead?

Helge


[1] https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git/commit/?h=parisc-4.12-1&id=5aa2aabff1ce642a0c16b8c25bce8dc5ad66ad81
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From - Thu Nov 08 21:39:50 2018
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From: Jiri Slaby <jslaby@suse.cz>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH 1/1] futex: remove duplicated code
Date: Mon, 15 May 2017 15:07:42 +0200
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Cc: linux-kernel@vger.kernel.org, Jiri Slaby <jslaby@suse.cz>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Richard Kuo <rkuo@codeaurora.org>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
        Jonas Bonn <jonas@southpole.se>,
        Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
        Stafford Horne <shorne@gmail.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
To: tglx@linutronix.de
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There is code duplicated over all architecture's headers for
futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
and comparison of the result.

Remove this duplication and leave up to the arches only the needed
assembly which is now in arch_futex_atomic_op_inuser.

Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
remove pointless access_ok() checks") as access_ok there returns true.
We introduce it back to the helper for the sake of simplicity (it gets
optimized away anyway).

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
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Cc: Richard Kuo <rkuo@codeaurora.org>
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Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stafford Horne <shorne@gmail.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390]
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Chris Metcalf <cmetcalf@mellanox.com> [for tile]
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: <x86@kernel.org>
Cc: <linux-alpha@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Cc: <linux-snps-arc@lists.infradead.org>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: <linux-hexagon@vger.kernel.org>
Cc: <linux-ia64@vger.kernel.org>
Cc: <linux-mips@linux-mips.org>
Cc: <openrisc@lists.librecores.org>
Cc: <linux-parisc@vger.kernel.org>
Cc: <linuxppc-dev@lists.ozlabs.org>
Cc: <linux-s390@vger.kernel.org>
Cc: <linux-sh@vger.kernel.org>
Cc: <sparclinux@vger.kernel.org>
Cc: <linux-xtensa@linux-xtensa.org>
Cc: <linux-arch@vger.kernel.org>
---
 arch/alpha/include/asm/futex.h      | 26 ++++---------------
 arch/arc/include/asm/futex.h        | 40 ++++-------------------------
 arch/arm/include/asm/futex.h        | 26 +++----------------
 arch/arm64/include/asm/futex.h      | 26 +++----------------
 arch/frv/include/asm/futex.h        |  3 ++-
 arch/frv/kernel/futex.c             | 27 +++-----------------
 arch/hexagon/include/asm/futex.h    | 38 +++-------------------------
 arch/ia64/include/asm/futex.h       | 25 +++----------------
 arch/microblaze/include/asm/futex.h | 38 +++-------------------------
 arch/mips/include/asm/futex.h       | 25 +++----------------
 arch/openrisc/include/asm/futex.h   | 39 +++--------------------------
 arch/parisc/include/asm/futex.h     | 26 +++----------------
 arch/powerpc/include/asm/futex.h    | 26 ++++---------------
 arch/s390/include/asm/futex.h       | 23 ++++-------------
 arch/sh/include/asm/futex.h         | 26 +++----------------
 arch/sparc/include/asm/futex_64.h   | 26 ++++---------------
 arch/tile/include/asm/futex.h       | 40 ++++-------------------------
 arch/x86/include/asm/futex.h        | 40 ++++-------------------------
 arch/xtensa/include/asm/futex.h     | 27 ++++----------------
 include/asm-generic/futex.h         | 50 +++++++------------------------------
 kernel/futex.c                      | 36 ++++++++++++++++++++++++++
 21 files changed, 127 insertions(+), 506 deletions(-)

diff --git a/arch/alpha/include/asm/futex.h b/arch/alpha/include/asm/futex.h
index fb01dfb760c2..05a70edd57b6 100644
--- a/arch/alpha/include/asm/futex.h
+++ b/arch/alpha/include/asm/futex.h
@@ -25,18 +25,10 @@
 	:	"r" (uaddr), "r"(oparg)				\
 	:	"memory")
 
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -62,17 +54,9 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/arc/include/asm/futex.h b/arch/arc/include/asm/futex.h
index 11e1b1f3acda..eb887dd13e74 100644
--- a/arch/arc/include/asm/futex.h
+++ b/arch/arc/include/asm/futex.h
@@ -73,20 +73,11 @@
 
 #endif
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
-
 #ifndef CONFIG_ARC_HAS_LLSC
 	preempt_disable();	/* to guarantee atomic r-m-w of futex op */
 #endif
@@ -118,30 +109,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	preempt_enable();
 #endif
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
index 6795368ad023..cc414382dab4 100644
--- a/arch/arm/include/asm/futex.h
+++ b/arch/arm/include/asm/futex.h
@@ -128,20 +128,10 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 #endif /* !SMP */
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 #ifndef CONFIG_SMP
 	preempt_disable();
 #endif
@@ -172,17 +162,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 	preempt_enable();
 #endif
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h
index 85c4a8981d47..5bb2fd4674e7 100644
--- a/arch/arm64/include/asm/futex.h
+++ b/arch/arm64/include/asm/futex.h
@@ -48,20 +48,10 @@ do {									\
 } while (0)
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -91,17 +81,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/frv/include/asm/futex.h b/arch/frv/include/asm/futex.h
index 2e1da71e27a4..ab346f5f8820 100644
--- a/arch/frv/include/asm/futex.h
+++ b/arch/frv/include/asm/futex.h
@@ -7,7 +7,8 @@
 #include <asm/errno.h>
 #include <linux/uaccess.h>
 
-extern int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr);
+extern int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr);
 
 static inline int
 futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
diff --git a/arch/frv/kernel/futex.c b/arch/frv/kernel/futex.c
index d155ca9e5098..37f7b2bf7f73 100644
--- a/arch/frv/kernel/futex.c
+++ b/arch/frv/kernel/futex.c
@@ -186,20 +186,10 @@ static inline int atomic_futex_op_xchg_xor(int oparg, u32 __user *uaddr, int *_o
 /*
  * do the futex operations
  */
-int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -225,18 +215,9 @@ int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS; break;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
 
 	return ret;
 
-} /* end futex_atomic_op_inuser() */
+} /* end arch_futex_atomic_op_inuser() */
diff --git a/arch/hexagon/include/asm/futex.h b/arch/hexagon/include/asm/futex.h
index 7e597f8434da..c607b77c8215 100644
--- a/arch/hexagon/include/asm/futex.h
+++ b/arch/hexagon/include/asm/futex.h
@@ -31,18 +31,9 @@
 
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -72,30 +63,9 @@ futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h
index 76acbcd5c060..6d67dc1eaf2b 100644
--- a/arch/ia64/include/asm/futex.h
+++ b/arch/ia64/include/asm/futex.h
@@ -45,18 +45,9 @@ do {									\
 } while (0)
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -84,17 +75,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/microblaze/include/asm/futex.h b/arch/microblaze/include/asm/futex.h
index 01848f056f43..a9dad9e5e132 100644
--- a/arch/microblaze/include/asm/futex.h
+++ b/arch/microblaze/include/asm/futex.h
@@ -29,18 +29,9 @@
 })
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -66,30 +57,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/mips/include/asm/futex.h b/arch/mips/include/asm/futex.h
index 1de190bdfb9c..a9e61ea54ca9 100644
--- a/arch/mips/include/asm/futex.h
+++ b/arch/mips/include/asm/futex.h
@@ -83,18 +83,9 @@
 }
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -125,17 +116,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/openrisc/include/asm/futex.h b/arch/openrisc/include/asm/futex.h
index 778087341977..8fed278a24b8 100644
--- a/arch/openrisc/include/asm/futex.h
+++ b/arch/openrisc/include/asm/futex.h
@@ -30,20 +30,10 @@
 })
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -68,30 +58,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 0ba14300cd8e..c601aab2fb36 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -32,22 +32,12 @@ _futex_spin_unlock_irqrestore(u32 __user *uaddr, unsigned long int *flags)
 }
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
 	unsigned long int flags;
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval, ret;
 	u32 tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(*uaddr)))
-		return -EFAULT;
-
 	_futex_spin_lock_irqsave(uaddr, &flags);
 	pagefault_disable();
 
@@ -85,17 +75,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 	pagefault_enable();
 	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
-	if (ret == 0) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/powerpc/include/asm/futex.h b/arch/powerpc/include/asm/futex.h
index eaada6c92344..719ed9b61ea7 100644
--- a/arch/powerpc/include/asm/futex.h
+++ b/arch/powerpc/include/asm/futex.h
@@ -29,18 +29,10 @@
 	: "b" (uaddr), "i" (-EFAULT), "r" (oparg) \
 	: "cr0", "memory")
 
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -66,17 +58,9 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h
index a4811aa0304d..8f8eec9e1198 100644
--- a/arch/s390/include/asm/futex.h
+++ b/arch/s390/include/asm/futex.h
@@ -21,17 +21,12 @@
 		: "0" (-EFAULT), "d" (oparg), "a" (uaddr),		\
 		  "m" (*uaddr) : "cc");
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, newval, ret;
 
 	load_kernel_asce();
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
 
 	pagefault_disable();
 	switch (op) {
@@ -60,17 +55,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	}
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/sh/include/asm/futex.h b/arch/sh/include/asm/futex.h
index d0078747d308..8f8cf941a8cd 100644
--- a/arch/sh/include/asm/futex.h
+++ b/arch/sh/include/asm/futex.h
@@ -27,21 +27,12 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	return atomic_futex_op_cmpxchg_inatomic(uval, uaddr, oldval, newval);
 }
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	u32 oparg = (encoded_op << 8) >> 20;
-	u32 cmparg = (encoded_op << 20) >> 20;
 	u32 oldval, newval, prev;
 	int ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	do {
@@ -80,17 +71,8 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = ((int)oldval < (int)cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = ((int)oldval >= (int)cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = ((int)oldval <= (int)cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = ((int)oldval > (int)cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
 
 	return ret;
 }
diff --git a/arch/sparc/include/asm/futex_64.h b/arch/sparc/include/asm/futex_64.h
index 4e899b0dabf7..1cfd89d92208 100644
--- a/arch/sparc/include/asm/futex_64.h
+++ b/arch/sparc/include/asm/futex_64.h
@@ -29,22 +29,14 @@
 	: "r" (uaddr), "r" (oparg), "i" (-EFAULT)	\
 	: "memory")
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tem;
 
-	if (unlikely(!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))))
-		return -EFAULT;
 	if (unlikely((((unsigned long) uaddr) & 0x3UL)))
 		return -EINVAL;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -69,17 +61,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/tile/include/asm/futex.h b/arch/tile/include/asm/futex.h
index e64a1b75fc38..83c1e639b411 100644
--- a/arch/tile/include/asm/futex.h
+++ b/arch/tile/include/asm/futex.h
@@ -106,12 +106,9 @@
 	lock = __atomic_hashed_lock((int __force *)uaddr)
 #endif
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int uninitialized_var(val), ret;
 
 	__futex_prolog();
@@ -119,12 +116,6 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	/* The 32-bit futex code makes this assumption, so validate it here. */
 	BUILD_BUG_ON(sizeof(atomic_t) != sizeof(int));
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 	switch (op) {
 	case FUTEX_OP_SET:
@@ -148,30 +139,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	}
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (val == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (val != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (val < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (val >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (val <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (val > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = val;
+
 	return ret;
 }
 
diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
index b4c1f5453436..f4dc9b63bdda 100644
--- a/arch/x86/include/asm/futex.h
+++ b/arch/x86/include/asm/futex.h
@@ -41,20 +41,11 @@
 		       "+m" (*uaddr), "=&r" (tem)		\
 		     : "r" (oparg), "i" (-EFAULT), "1" (0))
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tem;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -80,30 +71,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/xtensa/include/asm/futex.h b/arch/xtensa/include/asm/futex.h
index b39531babec0..eaaf1ebcc7a4 100644
--- a/arch/xtensa/include/asm/futex.h
+++ b/arch/xtensa/include/asm/futex.h
@@ -44,18 +44,10 @@
 	: "r" (uaddr), "I" (-EFAULT), "r" (oparg)	\
 	: "memory")
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 #if !XCHAL_HAVE_S32C1I
 	return -ENOSYS;
@@ -89,19 +81,10 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (ret)
-		return ret;
+	if (!ret)
+		*oval = oldval;
 
-	switch (cmp) {
-	case FUTEX_OP_CMP_EQ: return (oldval == cmparg);
-	case FUTEX_OP_CMP_NE: return (oldval != cmparg);
-	case FUTEX_OP_CMP_LT: return (oldval < cmparg);
-	case FUTEX_OP_CMP_GE: return (oldval >= cmparg);
-	case FUTEX_OP_CMP_LE: return (oldval <= cmparg);
-	case FUTEX_OP_CMP_GT: return (oldval > cmparg);
-	}
-
-	return -ENOSYS;
+	return ret;
 }
 
 static inline int
diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h
index bf2d34c9d804..f0d8b1c51343 100644
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -13,7 +13,7 @@
  */
 
 /**
- * futex_atomic_op_inuser() - Atomic arithmetic operation with constant
+ * arch_futex_atomic_op_inuser() - Atomic arithmetic operation with constant
  *			  argument and comparison of the previous
  *			  futex value with another constant.
  *
@@ -25,18 +25,11 @@
  * <0 - On error
  */
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval, ret;
 	u32 tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
 	preempt_disable();
 	pagefault_disable();
 
@@ -74,17 +67,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	pagefault_enable();
 	preempt_enable();
 
-	if (ret == 0) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (ret == 0)
+		*oval = oldval;
+
 	return ret;
 }
 
@@ -126,18 +111,9 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 
 #else
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -153,17 +129,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/kernel/futex.c b/kernel/futex.c
index 357348a6cf6b..28dc71b05250 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1546,6 +1546,42 @@ futex_wake(u32 __user *uaddr, unsigned int flags, int nr_wake, u32 bitset)
 	return ret;
 }
 
+static int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+{
+	int op = (encoded_op >> 28) & 7;
+	int cmp = (encoded_op >> 24) & 15;
+	int oparg = (encoded_op << 8) >> 20;
+	int cmparg = (encoded_op << 20) >> 20;
+	int oldval, ret;
+
+	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
+		oparg = 1 << oparg;
+
+	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+		return -EFAULT;
+
+	ret = arch_futex_atomic_op_inuser(op, oparg, &oldval, uaddr);
+	if (ret)
+		return ret;
+
+	switch (cmp) {
+	case FUTEX_OP_CMP_EQ:
+		return oldval == cmparg;
+	case FUTEX_OP_CMP_NE:
+		return oldval != cmparg;
+	case FUTEX_OP_CMP_LT:
+		return oldval < cmparg;
+	case FUTEX_OP_CMP_GE:
+		return oldval >= cmparg;
+	case FUTEX_OP_CMP_LE:
+		return oldval <= cmparg;
+	case FUTEX_OP_CMP_GT:
+		return oldval > cmparg;
+	default:
+		return -ENOSYS;
+	}
+}
+
 /*
  * Wake up all waiters hashed on the physical page that is mapped
  * to this virtual address:
-- 
2.13.0



From - Thu Nov 08 21:39:50 2018
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Will Deacon <will.deacon@arm.com>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 1/1] futex: remove duplicated code
Date: Mon, 15 May 2017 14:16:45 +0100
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Cc: tglx@linutronix.de, linux-kernel@vger.kernel.org,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Richard Kuo <rkuo@codeaurora.org>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
        Jonas Bonn <jonas@southpole.se>,
        Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
        Stafford Horne <shorne@gmail.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
To: Jiri Slaby <jslaby@suse.cz>
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Hi Jiri,

On Mon, May 15, 2017 at 03:07:42PM +0200, Jiri Slaby wrote:
> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
> 
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.
> 
> Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
> remove pointless access_ok() checks") as access_ok there returns true.
> We introduce it back to the helper for the sake of simplicity (it gets
> optimized away anyway).

Whilst I think this is a good idea, the code in question actually results
in undefined behaviour per the C spec and is reported by UBSAN. See my
patch fixing arm64 here (which I'd forgotten about):

https://www.spinics.net/lists/linux-arch/msg38564.html

But, as stated in the thread above, I think we should go a step further
and remove FUTEX_OP_{OR,ANDN,XOR,OPARG_SHIFT} altogether. They don't
appear to be used by userspace, and this whole thing is a total mess.

Any thoughts?

Will

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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Stop CPUs via PAT firmware before system halt or reboot.
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To: Helge Deller <deller@gmx.de>
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On 2017-05-15, at 3:39 AM, Helge Deller wrote:

> Anyway, I did included an updated patch [1] in my last git pull request to Linus (which actually
> didn't made it into 4.12...).
> Can you test this one instead?

I still see same behavior.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: Stop CPUs via PAT firmware before system halt or
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On 16.05.2017 02:29, John David Anglin wrote:
> On 2017-05-15, at 3:39 AM, Helge Deller wrote:
> 
>> Anyway, I did included an updated patch [1] in my last git pull request to Linus (which actually
>> didn't made it into 4.12...).
>> Can you test this one instead?
> 
> I still see same behavior.
> (After the system prints the message that it is okay to power off, 
> the front panel LED shows a flashing red, and pressing the power 
> button once doesn't power the system down. Pressing it again 
> causes the system to reboot.

I'll probably drop the patch then.
I didn't noticed that myself because I turn off/on the machine
via a remote power plug (via USB connected to a x86).

Helge
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Stop CPUs via PAT firmware before system halt or reboot.
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On 2017-05-16, at 3:22 PM, Helge Deller wrote:

> On 16.05.2017 02:29, John David Anglin wrote:
>> On 2017-05-15, at 3:39 AM, Helge Deller wrote:
>> 
>>> Anyway, I did included an updated patch [1] in my last git pull request to Linus (which actually
>>> didn't made it into 4.12...).
>>> Can you test this one instead?
>> 
>> I still see same behavior.
>> (After the system prints the message that it is okay to power off, 
>> the front panel LED shows a flashing red, and pressing the power 
>> button once doesn't power the system down. Pressing it again 
>> causes the system to reboot.
> 
> I'll probably drop the patch then.
> I didn't noticed that myself because I turn off/on the machine
> via a remote power plug (via USB connected to a x86).

I did a new kernel build after reverting change and tried "shutdown -h +0":

reboot: Power down                                                              
System shut down completed.                                                     
Please power this system off now.                                               
NMI watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [halt:2906]               
Modules linked in: ext2 ipv6 sg ext4 crc16 jbd2 mbcache sd_mod ohci_pci pata_sid
CPU: 0 PID: 2906 Comm: halt Not tainted 4.10.16+ #1                             
task: 000000007e5a6b30 task.stack: 000000007f140000                             
                                                                                
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI                                           
PSW: 00001000001011001111111100001111 Not tainted                               
r00-03  000000ff082cff0f 00000000406cf700 0000000040170870 000000007f140360     
r04-07  00000000406a5700 000000004321fedc 0000000028121969 0000000000000000     
r08-11  fffffffffee1dead 0000000000000000 0000000000013318 0000000000000000     
r12-15  0000000000000001 0000000000000001 0000000000000001 0000000000000001     
r16-19  0000000000000001 0000000000000000 00000000fffffff6 0000000000000000     
r20-23  0000000000000001 00000000000001c1 0000000000000000 00000000408d37d5     
r24-27  0000000000000000 000000000800000f 0000000040835c60 00000000406a5700     
r28-31  000000004080a784 000000007f1403b0 000000007f1403e0 0000000000000002     
sr00-03  000000000063f000 0000000000000000 0000000000000000 000000000063f000    
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000    
                                                                                
IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040170874 0000000040170870 
 IIR: 00000000    ISR: 000000000000003d  IOR: 00000000408d3332                  
 CPU:        0   CR30: 000000007f140000 CR31: ffffffffffffffff                  
 ORIG_R28: 00000000401e9ce0                                                     
 IAOQ[0]: machine_power_off+0x8c/0x90                                           
 IAOQ[1]: machine_power_off+0x88/0x90                                           
 RP(r2): machine_power_off+0x88/0x90                                            
Backtrace:                                                                      

Can we kill NMI watch dog?

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:39:50 2018
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Subject: Re: [PATCH 1/1] futex: remove duplicated code
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        Richard Henderson <rth@twiddle.net>,
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To: Will Deacon <will.deacon@arm.com>
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On 05/15/2017, 03:16 PM, Will Deacon wrote:
> Whilst I think this is a good idea, the code in question actually results
> in undefined behaviour per the C spec and is reported by UBSAN.

Hi, yes, I know -- this patch was the 1st from the series of 3 which I
sent a long time ago to fix that up too. But I remember your patch, so I
sent only this one this time.

> See my
> patch fixing arm64 here (which I'd forgotten about):
> 
> https://www.spinics.net/lists/linux-arch/msg38564.html
> 
> But, as stated in the thread above, I think we should go a step further
> and remove FUTEX_OP_{OR,ANDN,XOR,OPARG_SHIFT} altogether. They don't
> appear to be used by userspace, and this whole thing is a total mess.
> 
> Any thoughts?

Ok, I am all for that. I think the only question is who is going to do
the work and submit it :)? Do I understand correctly to eliminate all
these functions and the path into the kernel? But won't this break API
-- are there really no users of this interface?

thanks,
-- 
js
suse labs
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From - Thu Nov 08 21:39:51 2018
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From: Will Deacon <will.deacon@arm.com>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH 1/1] futex: remove duplicated code
Date: Thu, 18 May 2017 18:30:10 +0100
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To: Jiri Slaby <jslaby@suse.cz>
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On Wed, May 17, 2017 at 10:01:29AM +0200, Jiri Slaby wrote:
> On 05/15/2017, 03:16 PM, Will Deacon wrote:
> > Whilst I think this is a good idea, the code in question actually results
> > in undefined behaviour per the C spec and is reported by UBSAN.
> 
> Hi, yes, I know -- this patch was the 1st from the series of 3 which I
> sent a long time ago to fix that up too. But I remember your patch, so I
> sent only this one this time.
> 
> > See my
> > patch fixing arm64 here (which I'd forgotten about):
> > 
> > https://www.spinics.net/lists/linux-arch/msg38564.html
> > 
> > But, as stated in the thread above, I think we should go a step further
> > and remove FUTEX_OP_{OR,ANDN,XOR,OPARG_SHIFT} altogether. They don't
> > appear to be used by userspace, and this whole thing is a total mess.
> > 
> > Any thoughts?
> 
> Ok, I am all for that. I think the only question is who is going to do
> the work and submit it :)? Do I understand correctly to eliminate all
> these functions and the path into the kernel? But won't this break API
> -- are there really no users of this interface?

That's the million-dollar question, really. I don't know of any code using
it, and I couldn't find any when I looked (also nothing reported by Debian
Codesearch afaict), but I was hoping linux-arch might have some thoughts
on this too.

For now, I'll queue my arm64 patch before I forget about it again!

Will


From - Thu Nov 08 21:39:51 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [RFC][PATCH] parisc: Ignore AUX port of DIVA on rp34xx machines
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On rp34xx machines Linux detects the AUX port of the DIVA GSP card (PCI
subsystem id 0x1291) before the console port of DIVA GSP and as such the
AUX port becomes ttyS0 and the console port becomes ttyS1.  Since the
palo bootloader by default sets the console output to ttyS0 if no
keyboard & monitor is attached, all Linux kernel boot messages get lost.

Avoid this problem by ignoring the AUX port. There is no external serial
port connector for AUX, so we won't miss this serial port either.

(RFC, patch untested)

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 22d32d2..98261aa 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -174,6 +174,9 @@ static int pci_hp_diva_init(struct pci_dev *dev)
 	case PCI_DEVICE_ID_HP_DIVA_HURRICANE:
 		rc = 1;
 		break;
+	case PCI_DEVICE_ID_HP_DIVA_AUX2:
+		rc = -ENODEV; /* ignore on rp34xx */
+		break;
 	}
 
 	return rc;
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 3e5dbbe..633e738 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -760,6 +760,7 @@
 #define PCI_DEVICE_ID_HP_SX1000_IOC	0x127c
 #define PCI_DEVICE_ID_HP_DIVA_EVEREST	0x1282
 #define PCI_DEVICE_ID_HP_DIVA_AUX	0x1290
+#define PCI_DEVICE_ID_HP_DIVA_AUX2	0x1291
 #define PCI_DEVICE_ID_HP_DIVA_RMP3	0x1301
 #define PCI_DEVICE_ID_HP_DIVA_HURRICANE	0x132a
 #define PCI_DEVICE_ID_HP_CISSA		0x3220
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From - Thu Nov 08 21:39:51 2018
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Hi Arnd, Helge,

On Mon, May 22, 2017 at 11:35 AM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:
> Below is the list of build error/warning regressions/improvements in
> v4.12-rc2[1] compared to v4.11[2].
>
> Summarized:
>   - build errors: +2/-3
>   - build warnings: +27717/-896

> [1] http://kisskb.ellerman.id.au/kisskb/head/08332893e37af6ae779367e78e444f8f9571511d/ (267 out of 270 configs)

> 27717 warning regressions:
>
> [Deleted 26393 lines about "warning: ... [-Wpointer-sign]" on parisc-allmodconfig]

Do you know where these are coming from? They appeared in v4.12-rc1.
The toolchain on kisskb hasn't changed (still gcc-4.6.3-nolibc).

> [Deleted 1166 lines about "warning: -ffunction-sections disabled; it makes profiling impossible [enabled by default]" on parisc-allmodconfig]

This has been introduced a while ago.  Would be good to get it fixed, too.
I guess the "cflags-y += -ffunction-sections" still needs some CONFIG check,
despite commit 366dd4ea9d5f0eb7 ("parisc: Fix ftrace function tracer")?

Thanks!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds


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On Mon, May 22, 2017 at 11:49 AM, Geert Uytterhoeven
<geert@linux-m68k.org> wrote:
> Hi Arnd, Helge,
>
> On Mon, May 22, 2017 at 11:35 AM, Geert Uytterhoeven
> <geert@linux-m68k.org> wrote:
>> Below is the list of build error/warning regressions/improvements in
>> v4.12-rc2[1] compared to v4.11[2].
>>
>> Summarized:
>>   - build errors: +2/-3
>>   - build warnings: +27717/-896
>
>> [1] http://kisskb.ellerman.id.au/kisskb/head/08332893e37af6ae779367e78e444f8f9571511d/ (267 out of 270 configs)
>
>> 27717 warning regressions:
>>
>> [Deleted 26393 lines about "warning: ... [-Wpointer-sign]" on parisc-allmodconfig]
>
> Do you know where these are coming from? They appeared in v4.12-rc1.
> The toolchain on kisskb hasn't changed (still gcc-4.6.3-nolibc).
>
>> [Deleted 1166 lines about "warning: -ffunction-sections disabled; it makes profiling impossible [enabled by default]" on parisc-allmodconfig]
>
> This has been introduced a while ago.  Would be good to get it fixed, too.
> I guess the "cflags-y += -ffunction-sections" still needs some CONFIG check,
> despite commit 366dd4ea9d5f0eb7 ("parisc: Fix ftrace function tracer")?

I found this mailing list discussion:

https://gcc.gnu.org/ml/gcc-help/2008-11/msg00141.html
https://gcc.gnu.org/ml/gcc-help/2008-11/msg00139.html

This patch was merged into gcc-4.8:

https://patchwork.ozlabs.org/patch/197134/

As the -ffunction-sections is a workaround for another problem, we could
use make it conditional on having a more recent compiler here.

        Arnd
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On 22.05.2017 16:19, Arnd Bergmann wrote:
> On Mon, May 22, 2017 at 11:49 AM, Geert Uytterhoeven
> <geert@linux-m68k.org> wrote:
>> Hi Arnd, Helge,
>>
>> On Mon, May 22, 2017 at 11:35 AM, Geert Uytterhoeven
>> <geert@linux-m68k.org> wrote:
>>> Below is the list of build error/warning regressions/improvements in
>>> v4.12-rc2[1] compared to v4.11[2].
>>>
>>> Summarized:
>>>   - build errors: +2/-3
>>>   - build warnings: +27717/-896
>>
>>> [1] http://kisskb.ellerman.id.au/kisskb/head/08332893e37af6ae779367e78e444f8f9571511d/ (267 out of 270 configs)
>>
>>> 27717 warning regressions:
>>>
>>> [Deleted 26393 lines about "warning: ... [-Wpointer-sign]" on parisc-allmodconfig]
>>
>> Do you know where these are coming from? They appeared in v4.12-rc1.

No idea.

>> The toolchain on kisskb hasn't changed (still gcc-4.6.3-nolibc).

Ok.

>>> [Deleted 1166 lines about "warning: -ffunction-sections disabled; it makes profiling impossible [enabled by default]" on parisc-allmodconfig]
>>
>> This has been introduced a while ago.  Would be good to get it fixed, too.
>> I guess the "cflags-y += -ffunction-sections" still needs some CONFIG check,
>> despite commit 366dd4ea9d5f0eb7 ("parisc: Fix ftrace function tracer")?
> 
> I found this mailing list discussion:
> 
> https://gcc.gnu.org/ml/gcc-help/2008-11/msg00141.html
> https://gcc.gnu.org/ml/gcc-help/2008-11/msg00139.html
> 
> This patch was merged into gcc-4.8:
> 
> https://patchwork.ozlabs.org/patch/197134/
> 
> As the -ffunction-sections is a workaround for another problem, we could
> use make it conditional on having a more recent compiler here.

Yes, please update the compiler. I suggested that last time already.
I'm using gcc-6.1.1-cross from Fedora:
hppa-linux-gnu-gcc (GCC) 6.1.1 20160621 (Red Hat Cross 6.1.1-2)
downloaded the given parisc-allmodconfig and it does not show any of those warnings.  

Helge


From - Thu Nov 08 21:39:51 2018
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Subject: Re: Build regressions/improvements in v4.12-rc2
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On 2017-05-22, at 5:49 AM, Geert Uytterhoeven wrote:

>> [Deleted 1166 lines about "warning: -ffunction-sections disabled; it makes profiling impossible [enabled by default]" on parisc-allmodconfig]

Although this issue may be fixed in gcc, do we really want to enable profiling by default?

Dave
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On Mon, May 22, 2017 at 8:46 PM, John David Anglin <dave.anglin@bell.net> wrote:
> On 2017-05-22, at 5:49 AM, Geert Uytterhoeven wrote:
>
>>> [Deleted 1166 lines about "warning: -ffunction-sections disabled; it makes profiling impossible [enabled by default]" on parisc-allmodconfig]
>
> Although this issue may be fixed in gcc, do we really want to enable profiling by default?

This is ftrace, which uses the same compiler flag as gprof, and the option
is only enabled in allmodconfig, which seems reasonable.

       Arnd
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Subject: Re: [PATCH 1/1] futex: remove duplicated code
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On Mon, 15 May 2017, Will Deacon wrote:
> Hi Jiri,
> 
> On Mon, May 15, 2017 at 03:07:42PM +0200, Jiri Slaby wrote:
> > There is code duplicated over all architecture's headers for
> > futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> > and comparison of the result.
> > 
> > Remove this duplication and leave up to the arches only the needed
> > assembly which is now in arch_futex_atomic_op_inuser.
> > 
> > Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
> > remove pointless access_ok() checks") as access_ok there returns true.
> > We introduce it back to the helper for the sake of simplicity (it gets
> > optimized away anyway).
> 
> Whilst I think this is a good idea, the code in question actually results
> in undefined behaviour per the C spec and is reported by UBSAN. See my
> patch fixing arm64 here (which I'd forgotten about):
> 
> https://www.spinics.net/lists/linux-arch/msg38564.html
> 
> But, as stated in the thread above, I think we should go a step further
> and remove FUTEX_OP_{OR,ANDN,XOR,OPARG_SHIFT} altogether. They don't
> appear to be used by userspace, and this whole thing is a total mess.

You wish. The constants are not used, but FUTEX_WAKE_OP _IS_ used by
glibc. They only have one argument it seems:

   #define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE      ((4 << 24) | 1)

but I'm pretty sure that there is enough (probably horrible) code (think
java) out there using FUTEX_WAKE_OP for whatever (non)sensical reasons in
any available combination.

Thanks,

	tglx

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Subject: Re: [PATCH 1/1] futex: remove duplicated code
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On Mon, May 22, 2017 at 11:11:33PM +0200, Thomas Gleixner wrote:
> On Mon, 15 May 2017, Will Deacon wrote:
> > On Mon, May 15, 2017 at 03:07:42PM +0200, Jiri Slaby wrote:
> > > There is code duplicated over all architecture's headers for
> > > futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> > > and comparison of the result.
> > > 
> > > Remove this duplication and leave up to the arches only the needed
> > > assembly which is now in arch_futex_atomic_op_inuser.
> > > 
> > > Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
> > > remove pointless access_ok() checks") as access_ok there returns true.
> > > We introduce it back to the helper for the sake of simplicity (it gets
> > > optimized away anyway).
> > 
> > Whilst I think this is a good idea, the code in question actually results
> > in undefined behaviour per the C spec and is reported by UBSAN. See my
> > patch fixing arm64 here (which I'd forgotten about):
> > 
> > https://www.spinics.net/lists/linux-arch/msg38564.html
> > 
> > But, as stated in the thread above, I think we should go a step further
> > and remove FUTEX_OP_{OR,ANDN,XOR,OPARG_SHIFT} altogether. They don't
> > appear to be used by userspace, and this whole thing is a total mess.
> 
> You wish. The constants are not used, but FUTEX_WAKE_OP _IS_ used by
> glibc. They only have one argument it seems:
> 
>    #define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE      ((4 << 24) | 1)
> 
> but I'm pretty sure that there is enough (probably horrible) code (think
> java) out there using FUTEX_WAKE_OP for whatever (non)sensical reasons in
> any available combination.

Indeed, and I'm not proposing to get rid of that. It's the grossly
over-engineered array of operations and the FUTEX_OP_OPARG_SHIFT modifier
that I think we should kill. The latter likely behaves differently across
different architectures and potentially depending on the toolchain you used
to build the kernel.

Does anybody know the history behind the interface design?

Will

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Lieber Freund,

Ich bin Frau Dionisia Denis Perman aus Island, verheiratet mit Late Engineer
Denis Perman {PhD}, der mit MULTINATIONAL OIL COMPANY EXXON AS A gearbeitet hat
DRILLING RIG SUPPLIER in Kuwait seit 19 Jahren, bevor er auf der
22. August 2009. Wir waren seit vierundzwanzig Jahren verheiratet
Kind. Er starb nach einer kurzen Krankheit, die nur vier Tage dauerte.
Vor seinem Tod hat er die Summe von USD 10.142.728,00 Dollar
Mit einer Kurierfirma in Indien und dieser Fonds ist derzeit mit dem Kurier warten auf meine
Auszahlung als Begünstigter und nächste Angehörige der Mittel. Kürzlich, meine
Doktor sagte mir, dass ich nicht für die nächsten acht Monate dauern würde
Krebsproblem Nachdem ich meinen Zustand gekannt habe, habe ich beschlossen, dies zu spenden
Fonds für eine Kirche, Organisation oder gute Person, die dies nutzen wird
Geld in gutem Glauben.

Ich habe diese Entscheidung getroffen, weil ich kein Kind habe, das erben wird
dieses Geld. Ich hielt diese Kaution bis heute; Deshalb bin ich
Diese Entscheidung treffen Ich glaube nicht, dass ich ein Telefon brauchen werde
Kommunikation in dieser Hinsicht wegen der Vertraulichkeit dieser
Transaktion. Nach deiner Antwort werde ich dir den Kontakt des Kuriers geben. ich
Wird auch ein Genehmigungsschreiben an den Kurier ausstellen, der beweisen wird
Sie der gegenwärtige Begünstigte dieses Geldes. So solltest du mir deine Adresse, deinen Namen, dein Land und deine Hand schicken.

Erwarten Sie Ihre Antworten und Gott segnen Sie.
Frau Dionisia Denis Perman
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Subject: Re: [PATCH 1/1] futex: remove duplicated code
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To: Will Deacon <will.deacon@arm.com>
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On Thu, 25 May 2017, Will Deacon wrote:
> On Mon, May 22, 2017 at 11:11:33PM +0200, Thomas Gleixner wrote:
> > On Mon, 15 May 2017, Will Deacon wrote:
> > > On Mon, May 15, 2017 at 03:07:42PM +0200, Jiri Slaby wrote:
> > > > There is code duplicated over all architecture's headers for
> > > > futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> > > > and comparison of the result.
> > > > 
> > > > Remove this duplication and leave up to the arches only the needed
> > > > assembly which is now in arch_futex_atomic_op_inuser.
> > > > 
> > > > Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
> > > > remove pointless access_ok() checks") as access_ok there returns true.
> > > > We introduce it back to the helper for the sake of simplicity (it gets
> > > > optimized away anyway).
> > > 
> > > Whilst I think this is a good idea, the code in question actually results
> > > in undefined behaviour per the C spec and is reported by UBSAN. See my
> > > patch fixing arm64 here (which I'd forgotten about):
> > > 
> > > https://www.spinics.net/lists/linux-arch/msg38564.html
> > > 
> > > But, as stated in the thread above, I think we should go a step further
> > > and remove FUTEX_OP_{OR,ANDN,XOR,OPARG_SHIFT} altogether. They don't
> > > appear to be used by userspace, and this whole thing is a total mess.
> > 
> > You wish. The constants are not used, but FUTEX_WAKE_OP _IS_ used by
> > glibc. They only have one argument it seems:
> > 
> >    #define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE      ((4 << 24) | 1)
> > 
> > but I'm pretty sure that there is enough (probably horrible) code (think
> > java) out there using FUTEX_WAKE_OP for whatever (non)sensical reasons in
> > any available combination.
> 
> Indeed, and I'm not proposing to get rid of that. It's the grossly
> over-engineered array of operations and the FUTEX_OP_OPARG_SHIFT modifier
> that I think we should kill. The latter likely behaves differently across
> different architectures and potentially depending on the toolchain you used
> to build the kernel.
> 
> Does anybody know the history behind the interface design?

Which design?

4732efbeb997 ("[PATCH] FUTEX_WAKE_OP: pthread_cond_signal() speedup")

Thanks,

	tglx

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This is because of commit f98db6013c55 ("sched/core: Add switch_mm_irqs_off()
and use it in the scheduler") in which switch_mm_irqs_off() is called by the
scheduler, vs switch_mm() which is used by use_mm().

This patch lets the parisc code mirror the x86 and powerpc code, ie. it
disables interrupts in switch_mm(), and optimises the scheduler case by
defining switch_mm_irqs_off().

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v4.7+

diff --git a/arch/parisc/include/asm/mmu_context.h b/arch/parisc/include/asm/mmu_context.h
index 59be257..a812262 100644
--- a/arch/parisc/include/asm/mmu_context.h
+++ b/arch/parisc/include/asm/mmu_context.h
@@ -49,15 +49,26 @@ static inline void load_context(mm_context_t context)
 	mtctl(__space_to_prot(context), 8);
 }
 
-static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
+static inline void switch_mm_irqs_off(struct mm_struct *prev,
+		struct mm_struct *next, struct task_struct *tsk)
 {

From - Thu Nov 08 21:39:51 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH v2] serial/parisc: Ignore AUX port of DIVA on rp34xx machines
Date: Mon, 29 May 2017 22:05:45 +0200
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On rp34xx machines Linux detects the AUX port of the DIVA GSP card (PCI
subsystem id 0x1291) before the console port of DIVA GSP and as such the AUX
port becomes ttyS0 and the console port becomes ttyS1.
Since the palo bootloader by default sets the console output to ttyS0 if no
keyboard & monitor is attached, all Linux kernel boot messages get lost.

Avoid this problem by ignoring the AUX port. There is no external serial
port connector for AUX, so we won't miss this serial port either.

Tested on a rp3410 parisc machine.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 00e51a0..2ec120e 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -174,6 +174,9 @@ static int pci_hp_diva_init(struct pci_dev *dev)
 	case PCI_DEVICE_ID_HP_DIVA_HURRICANE:
 		rc = 1;
 		break;
+	case PCI_DEVICE_ID_HP_DIVA_AUX2:
+		rc = -ENODEV; /* ignore on rp34x0 machines */
+		break;
 	}
 
 	return rc;
@@ -1785,6 +1788,17 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
 		.setup		= pci_hp_diva_setup,
 	},
 	/*
+	 * HP Diva Auxiliary Serial Port
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_HP,
+		.device		= PCI_DEVICE_ID_HP_DIVA_AUX,
+		.subvendor	= PCI_VENDOR_ID_HP,
+		.subdevice	= PCI_DEVICE_ID_HP_DIVA_AUX2,
+		.init		= pci_hp_diva_init,
+		.setup		= pci_default_setup,
+	},
+	/*
 	 * Intel
 	 */
 	{
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 5f6b71d..ecc88a3 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -762,6 +762,7 @@
 #define PCI_DEVICE_ID_HP_SX1000_IOC	0x127c
 #define PCI_DEVICE_ID_HP_DIVA_EVEREST	0x1282
 #define PCI_DEVICE_ID_HP_DIVA_AUX	0x1290
+#define PCI_DEVICE_ID_HP_DIVA_AUX2	0x1291
 #define PCI_DEVICE_ID_HP_DIVA_RMP3	0x1301
 #define PCI_DEVICE_ID_HP_DIVA_HURRICANE	0x132a
 #define PCI_DEVICE_ID_HP_CISSA		0x3220
--
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Subject: Re: [PATCH v2] serial/parisc: Ignore AUX port of DIVA on rp34xx
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On 29.05.2017 22:05, Helge Deller wrote:
> On rp34xx machines Linux detects the AUX port of the DIVA GSP card (PCI
> subsystem id 0x1291) before the console port of DIVA GSP and as such the AUX
> port becomes ttyS0 and the console port becomes ttyS1.
> Since the palo bootloader by default sets the console output to ttyS0 if no
> keyboard & monitor is attached, all Linux kernel boot messages get lost.
> 
> Avoid this problem by ignoring the AUX port. There is no external serial
> port connector for AUX, so we won't miss this serial port either.
> 
> Tested on a rp3410 parisc machine.

I will drop this patch.
Instead I've committed changes to the palo bootloader
to default to ttyS1 on rp34x0 machines.
Patch is in palo git tree, palo v1.98 release will include that fix:
https://git.kernel.org/pub/scm/linux/kernel/git/deller/palo.git/commit/?id=9bb40b5ab775a077fd847c6ff99462249cc3f426

Helge
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From - Thu Nov 08 21:39:52 2018
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From: Aleksa Sarai <asarai@suse.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH] tty: add TIOCGPTPEER ioctl
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Cc: linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org,
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        linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
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        linux-arch@vger.kernel.org, Aleksa Sarai <asarai@suse.de>,
        Christian Brauner <christian.brauner@ubuntu.com>,
        Valentin Rothberg <vrothberg@suse.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/36935>

When opening the slave end of a PTY, it is not possible for userspace to
safely ensure that /dev/pts/$num is actually a slave (in cases where the
mount namespace in which devpts was mounted is controlled by an
untrusted process). In addition, there are several unresolvable
race conditions if userspace were to attempt to detect attacks through
stat(2) and other similar methods [in addition it is not clear how
userspace could detect attacks involving FUSE].

Resolve this by providing an interface for userpace to safely open the
"peer" end of a PTY file descriptor by using the dentry cached by
devpts. Since it is not possible to have an open master PTY without
having its slave exposed in /dev/pts this interface is safe. This
interface currently does not provide a way to get the master pty (since
it is not clear whether such an interface is safe or even useful).

Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Valentin Rothberg <vrothberg@suse.com>
Signed-off-by: Aleksa Sarai <asarai@suse.de>
---
 arch/alpha/include/uapi/asm/ioctls.h   |  1 +
 arch/mips/include/uapi/asm/ioctls.h    |  1 +
 arch/parisc/include/uapi/asm/ioctls.h  |  1 +
 arch/powerpc/include/uapi/asm/ioctls.h |  1 +
 arch/sh/include/uapi/asm/ioctls.h      |  1 +
 arch/sparc/include/uapi/asm/ioctls.h   |  3 +-
 arch/xtensa/include/uapi/asm/ioctls.h  |  1 +
 drivers/tty/pty.c                      | 71 ++++++++++++++++++++++++++++++++--
 include/uapi/asm-generic/ioctls.h      |  1 +
 9 files changed, 76 insertions(+), 5 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
index f30c94ae1bdb..f6ec120fdccd 100644
--- a/arch/alpha/include/uapi/asm/ioctls.h
+++ b/arch/alpha/include/uapi/asm/ioctls.h
@@ -94,6 +94,7 @@
 #define TIOCSRS485	_IOWR('T', 0x2F, struct serial_rs485)
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 #define TIOCGDEV	_IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
 #define TIOCSIG		_IOW('T',0x36, int)  /* Generate signal on Pty slave */
 #define TIOCVHANGUP	0x5437
diff --git a/arch/mips/include/uapi/asm/ioctls.h b/arch/mips/include/uapi/asm/ioctls.h
index 740219c2c894..6a44a4d82a6f 100644
--- a/arch/mips/include/uapi/asm/ioctls.h
+++ b/arch/mips/include/uapi/asm/ioctls.h
@@ -85,6 +85,7 @@
 #define TIOCSRS485	_IOWR('T', 0x2F, struct serial_rs485)
 #define TIOCGPTN	_IOR('T', 0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T', 0x31, int)  /* Lock/unlock Pty */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 #define TIOCGDEV	_IOR('T', 0x32, unsigned int) /* Get primary device node of /dev/console */
 #define TIOCSIG		_IOW('T', 0x36, int)  /* Generate signal on Pty slave */
 #define TIOCVHANGUP	0x5437
diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
index b6572f051b67..b89a7029a83f 100644
--- a/arch/parisc/include/uapi/asm/ioctls.h
+++ b/arch/parisc/include/uapi/asm/ioctls.h
@@ -54,6 +54,7 @@
 #define TIOCSRS485	_IOWR('T', 0x2F, struct serial_rs485)
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 #define TIOCGDEV	_IOR('T',0x32, int)  /* Get primary device node of /dev/console */
 #define TIOCSIG		_IOW('T',0x36, int)  /* Generate signal on Pty slave */
 #define TIOCVHANGUP	0x5437
diff --git a/arch/powerpc/include/uapi/asm/ioctls.h b/arch/powerpc/include/uapi/asm/ioctls.h
index 49a25796a61a..28ccc176e403 100644
--- a/arch/powerpc/include/uapi/asm/ioctls.h
+++ b/arch/powerpc/include/uapi/asm/ioctls.h
@@ -94,6 +94,7 @@
 #define TIOCSRS485	0x542f
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 #define TIOCGDEV	_IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
 #define TIOCSIG		_IOW('T',0x36, int)  /* Generate signal on Pty slave */
 #define TIOCVHANGUP	0x5437
diff --git a/arch/sh/include/uapi/asm/ioctls.h b/arch/sh/include/uapi/asm/ioctls.h
index c9903e56ccf4..c155812f75db 100644
--- a/arch/sh/include/uapi/asm/ioctls.h
+++ b/arch/sh/include/uapi/asm/ioctls.h
@@ -87,6 +87,7 @@
 #define TIOCSRS485	_IOWR('T', 47, struct serial_rs485)
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 #define TIOCGDEV	_IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
 #define TIOCSIG		_IOW('T',0x36, int)  /* Generate signal on Pty slave */
 #define TIOCVHANGUP	_IO('T', 0x37)
diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
index 06b3f6c3bb9a..6d27398632ea 100644
--- a/arch/sparc/include/uapi/asm/ioctls.h
+++ b/arch/sparc/include/uapi/asm/ioctls.h
@@ -27,7 +27,7 @@
 #define TIOCGRS485	_IOR('T', 0x41, struct serial_rs485)
 #define TIOCSRS485	_IOWR('T', 0x42, struct serial_rs485)
 
-/* Note that all the ioctls that are not available in Linux have a 
+/* Note that all the ioctls that are not available in Linux have a
  * double underscore on the front to: a) avoid some programs to
  * think we support some ioctls under Linux (autoconfiguration stuff)
  */
@@ -88,6 +88,7 @@
 #define TIOCGPTN	_IOR('t', 134, unsigned int) /* Get Pty Number */
 #define TIOCSPTLCK	_IOW('t', 135, int) /* Lock/unlock PTY */
 #define TIOCSIG		_IOW('t', 136, int) /* Generate signal on Pty slave */
+#define TIOCGPTPEER	_IOR('t', 137, int) /* Safely open the slave */
 
 /* Little f */
 #define FIOCLEX		_IO('f', 1)
diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/uapi/asm/ioctls.h
index 518954e74e6d..71f0a979647e 100644
--- a/arch/xtensa/include/uapi/asm/ioctls.h
+++ b/arch/xtensa/include/uapi/asm/ioctls.h
@@ -99,6 +99,7 @@
 #define TIOCSRS485	_IOWR('T', 47, struct serial_rs485)
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 #define TIOCGDEV	_IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
 #define TIOCSIG		_IOW('T',0x36, int)  /* Generate signal on Pty slave */
 #define TIOCVHANGUP	_IO('T', 0x37)
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 65799575c666..19c134ca47bb 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -24,6 +24,9 @@
 #include <linux/slab.h>
 #include <linux/mutex.h>
 #include <linux/poll.h>
+#include <linux/mount.h>
+#include <linux/file.h>
+#include <linux/ioctl.h>
 
 #undef TTY_DEBUG_HANGUP
 #ifdef TTY_DEBUG_HANGUP
@@ -66,8 +69,13 @@ static void pty_close(struct tty_struct *tty, struct file *filp)
 #ifdef CONFIG_UNIX98_PTYS
 		if (tty->driver == ptm_driver) {
 			mutex_lock(&devpts_mutex);
-			if (tty->link->driver_data)
-				devpts_pty_kill(tty->link->driver_data);
+			if (tty->link->driver_data) {
+				struct path *path = tty->link->driver_data;
+
+				devpts_pty_kill(path->dentry);
+				path_put(path);
+				kfree(path);
+			}
 			mutex_unlock(&devpts_mutex);
 		}
 #endif
@@ -440,6 +448,48 @@ static int pty_common_install(struct tty_driver *driver, struct tty_struct *tty,
 	return retval;
 }
 
+/**
+ *	pty_open_peer - open the peer of a pty
+ *	@tty: the peer of the pty being opened
+ *
+ *	Open the cached dentry in tty->link, providing a safe way for userspace
+ *	to get the slave end of a pty (where they have the master fd and cannot
+ *	access or trust the mount namespace /dev/pts was mounted inside).
+ */
+static struct file *pty_open_peer(struct tty_struct *tty, int flags)
+{
+	if (tty->driver->subtype != PTY_TYPE_MASTER)
+		return ERR_PTR(-EIO);
+	return dentry_open(tty->link->driver_data, flags, current_cred());
+}
+
+static int pty_get_peer(struct tty_struct *tty, int flags)
+{
+	int fd = -1;
+	struct file *filp = NULL;
+	int retval = -EINVAL;
+
+	fd = get_unused_fd_flags(0);
+	if (fd < 0) {
+		retval = fd;
+		goto err;
+	}
+
+	filp = pty_open_peer(tty, flags);
+	if (IS_ERR(filp)) {
+		retval = PTR_ERR(filp);
+		goto err_put;
+	}
+
+	fd_install(fd, filp);
+	return fd;
+
+err_put:
+	put_unused_fd(fd);
+err:
+	return retval;
+}
+
 static void pty_cleanup(struct tty_struct *tty)
 {
 	tty_port_put(tty->port);
@@ -602,6 +652,8 @@ static int pty_unix98_ioctl(struct tty_struct *tty,
 		return pty_get_pktmode(tty, (int __user *)arg);
 	case TIOCGPTN: /* Get PT Number */
 		return put_user(tty->index, (unsigned int __user *)arg);
+	case TIOCGPTPEER: /* Open the other end */
+		return pty_get_peer(tty, (int) arg);
 	case TIOCSIG:    /* Send signal to other side of pty */
 		return pty_signal(tty, (int) arg);
 	}
@@ -718,6 +770,7 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 {
 	struct pts_fs_info *fsi;
 	struct tty_struct *tty;
+	struct path *pts_path;
 	struct dentry *dentry;
 	int retval;
 	int index;
@@ -771,16 +824,26 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 		retval = PTR_ERR(dentry);
 		goto err_release;
 	}
-	tty->link->driver_data = dentry;
+	/* We need to cache a fake path for TIOCGPTPEER. */
+	pts_path = kmalloc(sizeof(struct path), GFP_KERNEL);
+	if (!pts_path)
+		goto err_release;
+	pts_path->mnt = filp->f_path.mnt;
+	pts_path->dentry = dentry;
+	path_get(pts_path);
+	tty->link->driver_data = pts_path;
 
 	retval = ptm_driver->ops->open(tty, filp);
 	if (retval)
-		goto err_release;
+		goto err_path_put;
 
 	tty_debug_hangup(tty, "opening (count=%d)\n", tty->count);
 
 	tty_unlock(tty);
 	return 0;
+err_path_put:
+	path_put(pts_path);
+	kfree(pts_path);
 err_release:
 	tty_unlock(tty);
 	// This will also put-ref the fsi
diff --git a/include/uapi/asm-generic/ioctls.h b/include/uapi/asm-generic/ioctls.h
index 143dacbb7d9a..e836dc677612 100644
--- a/include/uapi/asm-generic/ioctls.h
+++ b/include/uapi/asm-generic/ioctls.h
@@ -67,6 +67,7 @@
 #endif
 #define TIOCGPTN	_IOR('T', 0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T', 0x31, int)  /* Lock/unlock Pty */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 #define TIOCGDEV	_IOR('T', 0x32, unsigned int) /* Get primary device node of /dev/console */
 #define TCGETX		0x5432 /* SYS5 TCGETX compatibility */
 #define TCSETX		0x5433
-- 
2.13.0



From - Thu Nov 08 21:39:52 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH] tty: add TIOCGPTPEER ioctl
Date: Thu, 1 Jun 2017 20:46:29 +0200
Lines: 33
Approved: news@gmane.org
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Jiri Slaby <jslaby@suse.com>, Arnd Bergmann <arnd@arndb.de>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        alpha <linux-alpha@vger.kernel.org>,
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Hi Aleksa,

On Thu, Jun 1, 2017 at 7:38 PM, Aleksa Sarai <asarai@suse.de> wrote:
> --- a/arch/alpha/include/uapi/asm/ioctls.h
> +++ b/arch/alpha/include/uapi/asm/ioctls.h
> @@ -94,6 +94,7 @@
>  #define TIOCSRS485     _IOWR('T', 0x2F, struct serial_rs485)
>  #define TIOCGPTN       _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
>  #define TIOCSPTLCK     _IOW('T',0x31, int)  /* Lock/unlock Pty */
> +#define TIOCGPTPEER    _IOR('T', 0x41, int) /* Safely open the slave */

Shouldn't the list of definitions be kept sorted, by hex number?
(everywhere)

>  #define TIOCGDEV       _IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
>  #define TIOCSIG                _IOW('T',0x36, int)  /* Generate signal on Pty slave */
>  #define TIOCVHANGUP    0x5437

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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From - Thu Nov 08 21:39:52 2018
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Subject: Re: [PATCH] tty: add TIOCGPTPEER ioctl
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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>> --- a/arch/alpha/include/uapi/asm/ioctls.h
>> +++ b/arch/alpha/include/uapi/asm/ioctls.h
>> @@ -94,6 +94,7 @@
>>   #define TIOCSRS485     _IOWR('T', 0x2F, struct serial_rs485)
>>   #define TIOCGPTN       _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
>>   #define TIOCSPTLCK     _IOW('T',0x31, int)  /* Lock/unlock Pty */
>> +#define TIOCGPTPEER    _IOR('T', 0x41, int) /* Safely open the slave */
> 
> Shouldn't the list of definitions be kept sorted, by hex number?
> (everywhere)

Probably. The reason I put it here is because it logically is very 
similar to TIOCGPTN and TIOSPTLCK, but I can move it if the hex order is 
more important for maintainence.

-- 
Aleksa Sarai
Software Engineer (Containers)
SUSE Linux GmbH
https://www.cyphar.com/
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Subject: Re: [PATCH] tty: add TIOCGPTPEER ioctl
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On 06/01/2017 01:00 PM, Aleksa Sarai wrote:
>>> --- a/arch/alpha/include/uapi/asm/ioctls.h
>>> +++ b/arch/alpha/include/uapi/asm/ioctls.h
>>> @@ -94,6 +94,7 @@
>>>   #define TIOCSRS485     _IOWR('T', 0x2F, struct serial_rs485)
>>>   #define TIOCGPTN       _IOR('T',0x30, unsigned int) /* Get Pty Number (of 
>>> pty-mux device) */
>>>   #define TIOCSPTLCK     _IOW('T',0x31, int)  /* Lock/unlock Pty */
>>> +#define TIOCGPTPEER    _IOR('T', 0x41, int) /* Safely open the slave */
>>
>> Shouldn't the list of definitions be kept sorted, by hex number?
>> (everywhere)
> 
> Probably. The reason I put it here is because it logically is very similar to 
> TIOCGPTN and TIOSPTLCK, but I can move it if the hex order is more important 
> for maintainence.
> 

Yes please.


r~
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From - Thu Nov 08 21:39:52 2018
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Subject: [PATCH v2 0/1] tty: add TIOCGPTPEER ioctl
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Changes in v2:

  * Reordered addition to ioctls.h to follow correct hex ordering.

Aleksa Sarai (1):
  tty: add TIOCGPTPEER ioctl

 arch/alpha/include/uapi/asm/ioctls.h   |  1 +
 arch/mips/include/uapi/asm/ioctls.h    |  1 +
 arch/parisc/include/uapi/asm/ioctls.h  |  1 +
 arch/powerpc/include/uapi/asm/ioctls.h |  1 +
 arch/sh/include/uapi/asm/ioctls.h      |  1 +
 arch/sparc/include/uapi/asm/ioctls.h   |  3 +-
 arch/xtensa/include/uapi/asm/ioctls.h  |  1 +
 drivers/tty/pty.c                      | 71 ++++++++++++++++++++++++++++++++--
 include/uapi/asm-generic/ioctls.h      |  1 +
 9 files changed, 76 insertions(+), 5 deletions(-)

-- 
2.13.0



From - Thu Nov 08 21:39:52 2018
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Subject: [PATCH v2 1/1] tty: add TIOCGPTPEER ioctl
Date: Fri,  2 Jun 2017 18:48:58 +1000
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When opening the slave end of a PTY, it is not possible for userspace to
safely ensure that /dev/pts/$num is actually a slave (in cases where the
mount namespace in which devpts was mounted is controlled by an
untrusted process). In addition, there are several unresolvable
race conditions if userspace were to attempt to detect attacks through
stat(2) and other similar methods [in addition it is not clear how
userspace could detect attacks involving FUSE].

Resolve this by providing an interface for userpace to safely open the
"peer" end of a PTY file descriptor by using the dentry cached by
devpts. Since it is not possible to have an open master PTY without
having its slave exposed in /dev/pts this interface is safe. This
interface currently does not provide a way to get the master pty (since
it is not clear whether such an interface is safe or even useful).

Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Valentin Rothberg <vrothberg@suse.com>
Signed-off-by: Aleksa Sarai <asarai@suse.de>
---
 arch/alpha/include/uapi/asm/ioctls.h   |  1 +
 arch/mips/include/uapi/asm/ioctls.h    |  1 +
 arch/parisc/include/uapi/asm/ioctls.h  |  1 +
 arch/powerpc/include/uapi/asm/ioctls.h |  1 +
 arch/sh/include/uapi/asm/ioctls.h      |  1 +
 arch/sparc/include/uapi/asm/ioctls.h   |  3 +-
 arch/xtensa/include/uapi/asm/ioctls.h  |  1 +
 drivers/tty/pty.c                      | 71 ++++++++++++++++++++++++++++++++--
 include/uapi/asm-generic/ioctls.h      |  1 +
 9 files changed, 76 insertions(+), 5 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
index f30c94ae1bdb..ff67b8373bf7 100644
--- a/arch/alpha/include/uapi/asm/ioctls.h
+++ b/arch/alpha/include/uapi/asm/ioctls.h
@@ -100,6 +100,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/mips/include/uapi/asm/ioctls.h b/arch/mips/include/uapi/asm/ioctls.h
index 740219c2c894..68e19b689a00 100644
--- a/arch/mips/include/uapi/asm/ioctls.h
+++ b/arch/mips/include/uapi/asm/ioctls.h
@@ -91,6 +91,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 /* I hope the range from 0x5480 on is free ... */
 #define TIOCSCTTY	0x5480		/* become controlling tty */
diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
index b6572f051b67..674c68a5bbd0 100644
--- a/arch/parisc/include/uapi/asm/ioctls.h
+++ b/arch/parisc/include/uapi/asm/ioctls.h
@@ -60,6 +60,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define FIONCLEX	0x5450  /* these numbers need to be adjusted. */
 #define FIOCLEX		0x5451
diff --git a/arch/powerpc/include/uapi/asm/ioctls.h b/arch/powerpc/include/uapi/asm/ioctls.h
index 49a25796a61a..bfd609a3e928 100644
--- a/arch/powerpc/include/uapi/asm/ioctls.h
+++ b/arch/powerpc/include/uapi/asm/ioctls.h
@@ -100,6 +100,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/sh/include/uapi/asm/ioctls.h b/arch/sh/include/uapi/asm/ioctls.h
index c9903e56ccf4..eec7901e9e65 100644
--- a/arch/sh/include/uapi/asm/ioctls.h
+++ b/arch/sh/include/uapi/asm/ioctls.h
@@ -93,6 +93,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define TIOCSERCONFIG	_IO('T', 83) /* 0x5453 */
 #define TIOCSERGWILD	_IOR('T', 84,  int) /* 0x5454 */
diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
index 06b3f6c3bb9a..6d27398632ea 100644
--- a/arch/sparc/include/uapi/asm/ioctls.h
+++ b/arch/sparc/include/uapi/asm/ioctls.h
@@ -27,7 +27,7 @@
 #define TIOCGRS485	_IOR('T', 0x41, struct serial_rs485)
 #define TIOCSRS485	_IOWR('T', 0x42, struct serial_rs485)
 
-/* Note that all the ioctls that are not available in Linux have a 
+/* Note that all the ioctls that are not available in Linux have a
  * double underscore on the front to: a) avoid some programs to
  * think we support some ioctls under Linux (autoconfiguration stuff)
  */
@@ -88,6 +88,7 @@
 #define TIOCGPTN	_IOR('t', 134, unsigned int) /* Get Pty Number */
 #define TIOCSPTLCK	_IOW('t', 135, int) /* Lock/unlock PTY */
 #define TIOCSIG		_IOW('t', 136, int) /* Generate signal on Pty slave */
+#define TIOCGPTPEER	_IOR('t', 137, int) /* Safely open the slave */
 
 /* Little f */
 #define FIOCLEX		_IO('f', 1)
diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/uapi/asm/ioctls.h
index 518954e74e6d..98b004e24e85 100644
--- a/arch/xtensa/include/uapi/asm/ioctls.h
+++ b/arch/xtensa/include/uapi/asm/ioctls.h
@@ -105,6 +105,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define TIOCSERCONFIG	_IO('T', 83)
 #define TIOCSERGWILD	_IOR('T', 84,  int)
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 65799575c666..19c134ca47bb 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -24,6 +24,9 @@
 #include <linux/slab.h>
 #include <linux/mutex.h>
 #include <linux/poll.h>
+#include <linux/mount.h>
+#include <linux/file.h>
+#include <linux/ioctl.h>
 
 #undef TTY_DEBUG_HANGUP
 #ifdef TTY_DEBUG_HANGUP
@@ -66,8 +69,13 @@ static void pty_close(struct tty_struct *tty, struct file *filp)
 #ifdef CONFIG_UNIX98_PTYS
 		if (tty->driver == ptm_driver) {
 			mutex_lock(&devpts_mutex);
-			if (tty->link->driver_data)
-				devpts_pty_kill(tty->link->driver_data);
+			if (tty->link->driver_data) {
+				struct path *path = tty->link->driver_data;
+
+				devpts_pty_kill(path->dentry);
+				path_put(path);
+				kfree(path);
+			}
 			mutex_unlock(&devpts_mutex);
 		}
 #endif
@@ -440,6 +448,48 @@ static int pty_common_install(struct tty_driver *driver, struct tty_struct *tty,
 	return retval;
 }
 
+/**
+ *	pty_open_peer - open the peer of a pty
+ *	@tty: the peer of the pty being opened
+ *
+ *	Open the cached dentry in tty->link, providing a safe way for userspace
+ *	to get the slave end of a pty (where they have the master fd and cannot
+ *	access or trust the mount namespace /dev/pts was mounted inside).
+ */
+static struct file *pty_open_peer(struct tty_struct *tty, int flags)
+{
+	if (tty->driver->subtype != PTY_TYPE_MASTER)
+		return ERR_PTR(-EIO);
+	return dentry_open(tty->link->driver_data, flags, current_cred());
+}
+
+static int pty_get_peer(struct tty_struct *tty, int flags)
+{
+	int fd = -1;
+	struct file *filp = NULL;
+	int retval = -EINVAL;
+
+	fd = get_unused_fd_flags(0);
+	if (fd < 0) {
+		retval = fd;
+		goto err;
+	}
+
+	filp = pty_open_peer(tty, flags);
+	if (IS_ERR(filp)) {
+		retval = PTR_ERR(filp);
+		goto err_put;
+	}
+
+	fd_install(fd, filp);
+	return fd;
+
+err_put:
+	put_unused_fd(fd);
+err:
+	return retval;
+}
+
 static void pty_cleanup(struct tty_struct *tty)
 {
 	tty_port_put(tty->port);
@@ -602,6 +652,8 @@ static int pty_unix98_ioctl(struct tty_struct *tty,
 		return pty_get_pktmode(tty, (int __user *)arg);
 	case TIOCGPTN: /* Get PT Number */
 		return put_user(tty->index, (unsigned int __user *)arg);
+	case TIOCGPTPEER: /* Open the other end */
+		return pty_get_peer(tty, (int) arg);
 	case TIOCSIG:    /* Send signal to other side of pty */
 		return pty_signal(tty, (int) arg);
 	}
@@ -718,6 +770,7 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 {
 	struct pts_fs_info *fsi;
 	struct tty_struct *tty;
+	struct path *pts_path;
 	struct dentry *dentry;
 	int retval;
 	int index;
@@ -771,16 +824,26 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 		retval = PTR_ERR(dentry);
 		goto err_release;
 	}
-	tty->link->driver_data = dentry;
+	/* We need to cache a fake path for TIOCGPTPEER. */
+	pts_path = kmalloc(sizeof(struct path), GFP_KERNEL);
+	if (!pts_path)
+		goto err_release;
+	pts_path->mnt = filp->f_path.mnt;
+	pts_path->dentry = dentry;
+	path_get(pts_path);
+	tty->link->driver_data = pts_path;
 
 	retval = ptm_driver->ops->open(tty, filp);
 	if (retval)
-		goto err_release;
+		goto err_path_put;
 
 	tty_debug_hangup(tty, "opening (count=%d)\n", tty->count);
 
 	tty_unlock(tty);
 	return 0;
+err_path_put:
+	path_put(pts_path);
+	kfree(pts_path);
 err_release:
 	tty_unlock(tty);
 	// This will also put-ref the fsi
diff --git a/include/uapi/asm-generic/ioctls.h b/include/uapi/asm-generic/ioctls.h
index 143dacbb7d9a..06d5f7ddf84e 100644
--- a/include/uapi/asm-generic/ioctls.h
+++ b/include/uapi/asm-generic/ioctls.h
@@ -77,6 +77,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define FIONCLEX	0x5450
 #define FIOCLEX		0x5451
-- 
2.13.0



From - Thu Nov 08 21:39:52 2018
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Subject: Re: [PATCH v2 1/1] tty: add TIOCGPTPEER ioctl
Date: Fri, 2 Jun 2017 12:04:55 +0200
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Approved: news@gmane.org
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Jiri Slaby <jslaby@suse.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        linux-alpha@vger.kernel.org,
        "open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
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To: Aleksa Sarai <asarai@suse.de>
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On Fri, Jun 2, 2017 at 10:48 AM, Aleksa Sarai <asarai@suse.de> wrote:
> When opening the slave end of a PTY, it is not possible for userspace to
> safely ensure that /dev/pts/$num is actually a slave (in cases where the
> mount namespace in which devpts was mounted is controlled by an
> untrusted process). In addition, there are several unresolvable
> race conditions if userspace were to attempt to detect attacks through
> stat(2) and other similar methods [in addition it is not clear how
> userspace could detect attacks involving FUSE].
>
> Resolve this by providing an interface for userpace to safely open the
> "peer" end of a PTY file descriptor by using the dentry cached by
> devpts. Since it is not possible to have an open master PTY without
> having its slave exposed in /dev/pts this interface is safe. This
> interface currently does not provide a way to get the master pty (since
> it is not clear whether such an interface is safe or even useful).

This should be added to the compat ioctls as well. There are two ways
of doing this:

a) like the other ioctls handled by pty_unix98_ioctl(), add it to the
list in fs/compat_ioctl.c, and check that the list is still up-to-date with
the current driver (someone else may have missed one)

b) remove all compat handling for ioctls that are specific to
pty_unix98_ioctl() and pty_bsd_ioctl() from fs/compat_ioctl.c
and add compat_ioctl callback pointers to master_pty_ops_bsd
and ptm_unix98_ops, pointing to the respective ioctl handlers.

I would recommend b) as it avoids the problem in the future,
but it is a little more upfront work, and should be done as a
separate preparation patch.
All the ioctls here are compatible between 32-bit and 64-bit
user space, so no special translation is needed.

      Arnd


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Subject: [PATCH v3 0/2] tty: add TIOCGPTPEER ioctl
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Changes in v3:
  * Defined a compat_ioctl callback for all pty ioctls, since they are
    all 32-bit and 64-bit compatible.
  * Made TIOCGPTPEER support 32-bit userspace.

Aleksa Sarai (2):
  tty: add compat_ioctl callbacks
  tty: add TIOCGPTPEER ioctl

 Makefile                               |  1 +
 arch/alpha/include/uapi/asm/ioctls.h   |  1 +
 arch/mips/include/uapi/asm/ioctls.h    |  1 +
 arch/parisc/include/uapi/asm/ioctls.h  |  1 +
 arch/powerpc/include/uapi/asm/ioctls.h |  1 +
 arch/sh/include/uapi/asm/ioctls.h      |  1 +
 arch/sparc/include/uapi/asm/ioctls.h   |  3 +-
 arch/xtensa/include/uapi/asm/ioctls.h  |  1 +
 drivers/tty/pty.c                      | 93 ++++++++++++++++++++++++++++++++--
 fs/compat_ioctl.c                      |  6 ---
 include/uapi/asm-generic/ioctls.h      |  1 +
 11 files changed, 99 insertions(+), 11 deletions(-)

-- 
2.13.0

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From - Thu Nov 08 21:39:52 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Aleksa Sarai <asarai@suse.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 1/2] tty: add compat_ioctl callbacks
Date: Sat,  3 Jun 2017 23:51:10 +1000
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2491000>

In order to avoid future diversions between fs/compat_ioctl.c and
drivers/tty/pty.c, define .compat_ioctl callbacks for the relevant
tty_operations structs. Since both pty_unix98_ioctl() and
pty_bsd_ioctl() are compatible between 32-bit and 64-bit userspace no
special translation is required.

Signed-off-by: Aleksa Sarai <asarai@suse.de>
---
 Makefile          |  1 +
 drivers/tty/pty.c | 22 ++++++++++++++++++++++
 fs/compat_ioctl.c |  6 ------
 3 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/Makefile b/Makefile
index 470bd4d9513a..fb689286d83a 100644
--- a/Makefile
+++ b/Makefile
@@ -401,6 +401,7 @@ KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		   -fno-strict-aliasing -fno-common \
 		   -Werror-implicit-function-declaration \
 		   -Wno-format-security \
+		   -Wno-error=int-in-bool-context \
 		   -std=gnu89 $(call cc-option,-fno-PIE)
 
 
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 65799575c666..2a6bd9ae3f8b 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -481,6 +481,16 @@ static int pty_bsd_ioctl(struct tty_struct *tty,
 	return -ENOIOCTLCMD;
 }
 
+static long pty_bsd_compat_ioctl(struct tty_struct *tty,
+				 unsigned int cmd, unsigned long arg)
+{
+	/*
+	 * PTY ioctls don't require any special translation between 32-bit and
+	 * 64-bit userspace, they are already compatible.
+	 */
+	return pty_bsd_ioctl(tty, cmd, arg);
+}
+
 static int legacy_count = CONFIG_LEGACY_PTY_COUNT;
 /*
  * not really modular, but the easiest way to keep compat with existing
@@ -502,6 +512,7 @@ static const struct tty_operations master_pty_ops_bsd = {
 	.chars_in_buffer = pty_chars_in_buffer,
 	.unthrottle = pty_unthrottle,
 	.ioctl = pty_bsd_ioctl,
+	.compat_ioctl = pty_bsd_compat_ioctl,
 	.cleanup = pty_cleanup,
 	.resize = pty_resize,
 	.remove = pty_remove
@@ -609,6 +620,16 @@ static int pty_unix98_ioctl(struct tty_struct *tty,
 	return -ENOIOCTLCMD;
 }
 
+static long pty_unix98_compat_ioctl(struct tty_struct *tty,
+				 unsigned int cmd, unsigned long arg)
+{
+	/*
+	 * PTY ioctls don't require any special translation between 32-bit and
+	 * 64-bit userspace, they are already compatible.
+	 */
+	return pty_unix98_ioctl(tty, cmd, arg);
+}
+
 /**
  *	ptm_unix98_lookup	-	find a pty master
  *	@driver: ptm driver
@@ -681,6 +702,7 @@ static const struct tty_operations ptm_unix98_ops = {
 	.chars_in_buffer = pty_chars_in_buffer,
 	.unthrottle = pty_unthrottle,
 	.ioctl = pty_unix98_ioctl,
+	.compat_ioctl = pty_unix98_compat_ioctl,
 	.resize = pty_resize,
 	.cleanup = pty_cleanup
 };
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 6116d5275a3e..112b3e1e20e3 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -866,8 +866,6 @@ COMPATIBLE_IOCTL(TIOCGDEV)
 COMPATIBLE_IOCTL(TIOCCBRK)
 COMPATIBLE_IOCTL(TIOCGSID)
 COMPATIBLE_IOCTL(TIOCGICOUNT)
-COMPATIBLE_IOCTL(TIOCGPKT)
-COMPATIBLE_IOCTL(TIOCGPTLCK)
 COMPATIBLE_IOCTL(TIOCGEXCL)
 /* Little t */
 COMPATIBLE_IOCTL(TIOCGETD)
@@ -883,16 +881,12 @@ COMPATIBLE_IOCTL(TIOCMGET)
 COMPATIBLE_IOCTL(TIOCMBIC)
 COMPATIBLE_IOCTL(TIOCMBIS)
 COMPATIBLE_IOCTL(TIOCMSET)
-COMPATIBLE_IOCTL(TIOCPKT)
 COMPATIBLE_IOCTL(TIOCNOTTY)
 COMPATIBLE_IOCTL(TIOCSTI)
 COMPATIBLE_IOCTL(TIOCOUTQ)
 COMPATIBLE_IOCTL(TIOCSPGRP)
 COMPATIBLE_IOCTL(TIOCGPGRP)
-COMPATIBLE_IOCTL(TIOCGPTN)
-COMPATIBLE_IOCTL(TIOCSPTLCK)
 COMPATIBLE_IOCTL(TIOCSERGETLSR)
-COMPATIBLE_IOCTL(TIOCSIG)
 #ifdef TIOCSRS485
 COMPATIBLE_IOCTL(TIOCSRS485)
 #endif
-- 
2.13.0



From - Thu Nov 08 21:39:52 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Aleksa Sarai <asarai@suse.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH v3 2/2] tty: add TIOCGPTPEER ioctl
Date: Sat,  3 Jun 2017 23:51:11 +1000
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        Christian Brauner <christian.brauner@ubuntu.com>,
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        Aleksa Sarai <asarai@suse.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/36962>

When opening the slave end of a PTY, it is not possible for userspace to
safely ensure that /dev/pts/$num is actually a slave (in cases where the
mount namespace in which devpts was mounted is controlled by an
untrusted process). In addition, there are several unresolvable
race conditions if userspace were to attempt to detect attacks through
stat(2) and other similar methods [in addition it is not clear how
userspace could detect attacks involving FUSE].

Resolve this by providing an interface for userpace to safely open the
"peer" end of a PTY file descriptor by using the dentry cached by
devpts. Since it is not possible to have an open master PTY without
having its slave exposed in /dev/pts this interface is safe. This
interface currently does not provide a way to get the master pty (since
it is not clear whether such an interface is safe or even useful).

Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Valentin Rothberg <vrothberg@suse.com>
Signed-off-by: Aleksa Sarai <asarai@suse.de>
---
 arch/alpha/include/uapi/asm/ioctls.h   |  1 +
 arch/mips/include/uapi/asm/ioctls.h    |  1 +
 arch/parisc/include/uapi/asm/ioctls.h  |  1 +
 arch/powerpc/include/uapi/asm/ioctls.h |  1 +
 arch/sh/include/uapi/asm/ioctls.h      |  1 +
 arch/sparc/include/uapi/asm/ioctls.h   |  3 +-
 arch/xtensa/include/uapi/asm/ioctls.h  |  1 +
 drivers/tty/pty.c                      | 71 ++++++++++++++++++++++++++++++++--
 include/uapi/asm-generic/ioctls.h      |  1 +
 9 files changed, 76 insertions(+), 5 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
index f30c94ae1bdb..ff67b8373bf7 100644
--- a/arch/alpha/include/uapi/asm/ioctls.h
+++ b/arch/alpha/include/uapi/asm/ioctls.h
@@ -100,6 +100,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/mips/include/uapi/asm/ioctls.h b/arch/mips/include/uapi/asm/ioctls.h
index 740219c2c894..68e19b689a00 100644
--- a/arch/mips/include/uapi/asm/ioctls.h
+++ b/arch/mips/include/uapi/asm/ioctls.h
@@ -91,6 +91,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 /* I hope the range from 0x5480 on is free ... */
 #define TIOCSCTTY	0x5480		/* become controlling tty */
diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
index b6572f051b67..674c68a5bbd0 100644
--- a/arch/parisc/include/uapi/asm/ioctls.h
+++ b/arch/parisc/include/uapi/asm/ioctls.h
@@ -60,6 +60,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define FIONCLEX	0x5450  /* these numbers need to be adjusted. */
 #define FIOCLEX		0x5451
diff --git a/arch/powerpc/include/uapi/asm/ioctls.h b/arch/powerpc/include/uapi/asm/ioctls.h
index 49a25796a61a..bfd609a3e928 100644
--- a/arch/powerpc/include/uapi/asm/ioctls.h
+++ b/arch/powerpc/include/uapi/asm/ioctls.h
@@ -100,6 +100,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/sh/include/uapi/asm/ioctls.h b/arch/sh/include/uapi/asm/ioctls.h
index c9903e56ccf4..eec7901e9e65 100644
--- a/arch/sh/include/uapi/asm/ioctls.h
+++ b/arch/sh/include/uapi/asm/ioctls.h
@@ -93,6 +93,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define TIOCSERCONFIG	_IO('T', 83) /* 0x5453 */
 #define TIOCSERGWILD	_IOR('T', 84,  int) /* 0x5454 */
diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
index 06b3f6c3bb9a..6d27398632ea 100644
--- a/arch/sparc/include/uapi/asm/ioctls.h
+++ b/arch/sparc/include/uapi/asm/ioctls.h
@@ -27,7 +27,7 @@
 #define TIOCGRS485	_IOR('T', 0x41, struct serial_rs485)
 #define TIOCSRS485	_IOWR('T', 0x42, struct serial_rs485)
 
-/* Note that all the ioctls that are not available in Linux have a 
+/* Note that all the ioctls that are not available in Linux have a
  * double underscore on the front to: a) avoid some programs to
  * think we support some ioctls under Linux (autoconfiguration stuff)
  */
@@ -88,6 +88,7 @@
 #define TIOCGPTN	_IOR('t', 134, unsigned int) /* Get Pty Number */
 #define TIOCSPTLCK	_IOW('t', 135, int) /* Lock/unlock PTY */
 #define TIOCSIG		_IOW('t', 136, int) /* Generate signal on Pty slave */
+#define TIOCGPTPEER	_IOR('t', 137, int) /* Safely open the slave */
 
 /* Little f */
 #define FIOCLEX		_IO('f', 1)
diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/uapi/asm/ioctls.h
index 518954e74e6d..98b004e24e85 100644
--- a/arch/xtensa/include/uapi/asm/ioctls.h
+++ b/arch/xtensa/include/uapi/asm/ioctls.h
@@ -105,6 +105,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define TIOCSERCONFIG	_IO('T', 83)
 #define TIOCSERGWILD	_IOR('T', 84,  int)
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 2a6bd9ae3f8b..d1399aac05a1 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -24,6 +24,9 @@
 #include <linux/slab.h>
 #include <linux/mutex.h>
 #include <linux/poll.h>
+#include <linux/mount.h>
+#include <linux/file.h>
+#include <linux/ioctl.h>
 
 #undef TTY_DEBUG_HANGUP
 #ifdef TTY_DEBUG_HANGUP
@@ -66,8 +69,13 @@ static void pty_close(struct tty_struct *tty, struct file *filp)
 #ifdef CONFIG_UNIX98_PTYS
 		if (tty->driver == ptm_driver) {
 			mutex_lock(&devpts_mutex);
-			if (tty->link->driver_data)
-				devpts_pty_kill(tty->link->driver_data);
+			if (tty->link->driver_data) {
+				struct path *path = tty->link->driver_data;
+
+				devpts_pty_kill(path->dentry);
+				path_put(path);
+				kfree(path);
+			}
 			mutex_unlock(&devpts_mutex);
 		}
 #endif
@@ -440,6 +448,48 @@ static int pty_common_install(struct tty_driver *driver, struct tty_struct *tty,
 	return retval;
 }
 
+/**
+ *	pty_open_peer - open the peer of a pty
+ *	@tty: the peer of the pty being opened
+ *
+ *	Open the cached dentry in tty->link, providing a safe way for userspace
+ *	to get the slave end of a pty (where they have the master fd and cannot
+ *	access or trust the mount namespace /dev/pts was mounted inside).
+ */
+static struct file *pty_open_peer(struct tty_struct *tty, int flags)
+{
+	if (tty->driver->subtype != PTY_TYPE_MASTER)
+		return ERR_PTR(-EIO);
+	return dentry_open(tty->link->driver_data, flags, current_cred());
+}
+
+static int pty_get_peer(struct tty_struct *tty, int flags)
+{
+	int fd = -1;
+	struct file *filp = NULL;
+	int retval = -EINVAL;
+
+	fd = get_unused_fd_flags(0);
+	if (fd < 0) {
+		retval = fd;
+		goto err;
+	}
+
+	filp = pty_open_peer(tty, flags);
+	if (IS_ERR(filp)) {
+		retval = PTR_ERR(filp);
+		goto err_put;
+	}
+
+	fd_install(fd, filp);
+	return fd;
+
+err_put:
+	put_unused_fd(fd);
+err:
+	return retval;
+}
+
 static void pty_cleanup(struct tty_struct *tty)
 {
 	tty_port_put(tty->port);
@@ -613,6 +663,8 @@ static int pty_unix98_ioctl(struct tty_struct *tty,
 		return pty_get_pktmode(tty, (int __user *)arg);
 	case TIOCGPTN: /* Get PT Number */
 		return put_user(tty->index, (unsigned int __user *)arg);
+	case TIOCGPTPEER: /* Open the other end */
+		return pty_get_peer(tty, (int) arg);
 	case TIOCSIG:    /* Send signal to other side of pty */
 		return pty_signal(tty, (int) arg);
 	}
@@ -740,6 +792,7 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 {
 	struct pts_fs_info *fsi;
 	struct tty_struct *tty;
+	struct path *pts_path;
 	struct dentry *dentry;
 	int retval;
 	int index;
@@ -793,16 +846,26 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 		retval = PTR_ERR(dentry);
 		goto err_release;
 	}
-	tty->link->driver_data = dentry;
+	/* We need to cache a fake path for TIOCGPTPEER. */
+	pts_path = kmalloc(sizeof(struct path), GFP_KERNEL);
+	if (!pts_path)
+		goto err_release;
+	pts_path->mnt = filp->f_path.mnt;
+	pts_path->dentry = dentry;
+	path_get(pts_path);
+	tty->link->driver_data = pts_path;
 
 	retval = ptm_driver->ops->open(tty, filp);
 	if (retval)
-		goto err_release;
+		goto err_path_put;
 
 	tty_debug_hangup(tty, "opening (count=%d)\n", tty->count);
 
 	tty_unlock(tty);
 	return 0;
+err_path_put:
+	path_put(pts_path);
+	kfree(pts_path);
 err_release:
 	tty_unlock(tty);
 	// This will also put-ref the fsi
diff --git a/include/uapi/asm-generic/ioctls.h b/include/uapi/asm-generic/ioctls.h
index 143dacbb7d9a..06d5f7ddf84e 100644
--- a/include/uapi/asm-generic/ioctls.h
+++ b/include/uapi/asm-generic/ioctls.h
@@ -77,6 +77,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define FIONCLEX	0x5450
 #define FIOCLEX		0x5451
-- 
2.13.0



From - Thu Nov 08 21:39:52 2018
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Subject: Re: [PATCH v3 1/2] tty: add compat_ioctl callbacks
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> diff --git a/Makefile b/Makefile
> index 470bd4d9513a..fb689286d83a 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -401,6 +401,7 @@ KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
>   		   -fno-strict-aliasing -fno-common \
>   		   -Werror-implicit-function-declaration \
>   		   -Wno-format-security \
> +		   -Wno-error=int-in-bool-context \
>   		   -std=gnu89 $(call cc-option,-fno-PIE)


Ah sorry, I committed that by accident. I'll send a fixed version.

-- 
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https://www.cyphar.com/
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Changes in v4:
  * Dropped an accidental change to Makefile.

Aleksa Sarai (2):
  tty: add compat_ioctl callbacks
  tty: add TIOCGPTPEER ioctl

 arch/alpha/include/uapi/asm/ioctls.h   |  1 +
 arch/mips/include/uapi/asm/ioctls.h    |  1 +
 arch/parisc/include/uapi/asm/ioctls.h  |  1 +
 arch/powerpc/include/uapi/asm/ioctls.h |  1 +
 arch/sh/include/uapi/asm/ioctls.h      |  1 +
 arch/sparc/include/uapi/asm/ioctls.h   |  3 +-
 arch/xtensa/include/uapi/asm/ioctls.h  |  1 +
 drivers/tty/pty.c                      | 93 ++++++++++++++++++++++++++++++++--
 fs/compat_ioctl.c                      |  6 ---
 include/uapi/asm-generic/ioctls.h      |  1 +
 10 files changed, 98 insertions(+), 11 deletions(-)

-- 
2.13.0

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From - Thu Nov 08 21:39:52 2018
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Subject: [PATCH v4 1/2] tty: add compat_ioctl callbacks
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In order to avoid future diversions between fs/compat_ioctl.c and
drivers/tty/pty.c, define .compat_ioctl callbacks for the relevant
tty_operations structs. Since both pty_unix98_ioctl() and
pty_bsd_ioctl() are compatible between 32-bit and 64-bit userspace no
special translation is required.

Signed-off-by: Aleksa Sarai <asarai@suse.de>
---
 drivers/tty/pty.c | 22 ++++++++++++++++++++++
 fs/compat_ioctl.c |  6 ------
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 65799575c666..2a6bd9ae3f8b 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -481,6 +481,16 @@ static int pty_bsd_ioctl(struct tty_struct *tty,
 	return -ENOIOCTLCMD;
 }
 
+static long pty_bsd_compat_ioctl(struct tty_struct *tty,
+				 unsigned int cmd, unsigned long arg)
+{
+	/*
+	 * PTY ioctls don't require any special translation between 32-bit and
+	 * 64-bit userspace, they are already compatible.
+	 */
+	return pty_bsd_ioctl(tty, cmd, arg);
+}
+
 static int legacy_count = CONFIG_LEGACY_PTY_COUNT;
 /*
  * not really modular, but the easiest way to keep compat with existing
@@ -502,6 +512,7 @@ static const struct tty_operations master_pty_ops_bsd = {
 	.chars_in_buffer = pty_chars_in_buffer,
 	.unthrottle = pty_unthrottle,
 	.ioctl = pty_bsd_ioctl,
+	.compat_ioctl = pty_bsd_compat_ioctl,
 	.cleanup = pty_cleanup,
 	.resize = pty_resize,
 	.remove = pty_remove
@@ -609,6 +620,16 @@ static int pty_unix98_ioctl(struct tty_struct *tty,
 	return -ENOIOCTLCMD;
 }
 
+static long pty_unix98_compat_ioctl(struct tty_struct *tty,
+				 unsigned int cmd, unsigned long arg)
+{
+	/*
+	 * PTY ioctls don't require any special translation between 32-bit and
+	 * 64-bit userspace, they are already compatible.
+	 */
+	return pty_unix98_ioctl(tty, cmd, arg);
+}
+
 /**
  *	ptm_unix98_lookup	-	find a pty master
  *	@driver: ptm driver
@@ -681,6 +702,7 @@ static const struct tty_operations ptm_unix98_ops = {
 	.chars_in_buffer = pty_chars_in_buffer,
 	.unthrottle = pty_unthrottle,
 	.ioctl = pty_unix98_ioctl,
+	.compat_ioctl = pty_unix98_compat_ioctl,
 	.resize = pty_resize,
 	.cleanup = pty_cleanup
 };
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 6116d5275a3e..112b3e1e20e3 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -866,8 +866,6 @@ COMPATIBLE_IOCTL(TIOCGDEV)
 COMPATIBLE_IOCTL(TIOCCBRK)
 COMPATIBLE_IOCTL(TIOCGSID)
 COMPATIBLE_IOCTL(TIOCGICOUNT)
-COMPATIBLE_IOCTL(TIOCGPKT)
-COMPATIBLE_IOCTL(TIOCGPTLCK)
 COMPATIBLE_IOCTL(TIOCGEXCL)
 /* Little t */
 COMPATIBLE_IOCTL(TIOCGETD)
@@ -883,16 +881,12 @@ COMPATIBLE_IOCTL(TIOCMGET)
 COMPATIBLE_IOCTL(TIOCMBIC)
 COMPATIBLE_IOCTL(TIOCMBIS)
 COMPATIBLE_IOCTL(TIOCMSET)
-COMPATIBLE_IOCTL(TIOCPKT)
 COMPATIBLE_IOCTL(TIOCNOTTY)
 COMPATIBLE_IOCTL(TIOCSTI)
 COMPATIBLE_IOCTL(TIOCOUTQ)
 COMPATIBLE_IOCTL(TIOCSPGRP)
 COMPATIBLE_IOCTL(TIOCGPGRP)
-COMPATIBLE_IOCTL(TIOCGPTN)
-COMPATIBLE_IOCTL(TIOCSPTLCK)
 COMPATIBLE_IOCTL(TIOCSERGETLSR)
-COMPATIBLE_IOCTL(TIOCSIG)
 #ifdef TIOCSRS485
 COMPATIBLE_IOCTL(TIOCSRS485)
 #endif
-- 
2.13.0



From - Thu Nov 08 21:39:52 2018
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From: Aleksa Sarai <asarai@suse.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 2/2] tty: add TIOCGPTPEER ioctl
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When opening the slave end of a PTY, it is not possible for userspace to
safely ensure that /dev/pts/$num is actually a slave (in cases where the
mount namespace in which devpts was mounted is controlled by an
untrusted process). In addition, there are several unresolvable
race conditions if userspace were to attempt to detect attacks through
stat(2) and other similar methods [in addition it is not clear how
userspace could detect attacks involving FUSE].

Resolve this by providing an interface for userpace to safely open the
"peer" end of a PTY file descriptor by using the dentry cached by
devpts. Since it is not possible to have an open master PTY without
having its slave exposed in /dev/pts this interface is safe. This
interface currently does not provide a way to get the master pty (since
it is not clear whether such an interface is safe or even useful).

Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Valentin Rothberg <vrothberg@suse.com>
Signed-off-by: Aleksa Sarai <asarai@suse.de>
---
 arch/alpha/include/uapi/asm/ioctls.h   |  1 +
 arch/mips/include/uapi/asm/ioctls.h    |  1 +
 arch/parisc/include/uapi/asm/ioctls.h  |  1 +
 arch/powerpc/include/uapi/asm/ioctls.h |  1 +
 arch/sh/include/uapi/asm/ioctls.h      |  1 +
 arch/sparc/include/uapi/asm/ioctls.h   |  3 +-
 arch/xtensa/include/uapi/asm/ioctls.h  |  1 +
 drivers/tty/pty.c                      | 71 ++++++++++++++++++++++++++++++++--
 include/uapi/asm-generic/ioctls.h      |  1 +
 9 files changed, 76 insertions(+), 5 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
index f30c94ae1bdb..ff67b8373bf7 100644
--- a/arch/alpha/include/uapi/asm/ioctls.h
+++ b/arch/alpha/include/uapi/asm/ioctls.h
@@ -100,6 +100,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/mips/include/uapi/asm/ioctls.h b/arch/mips/include/uapi/asm/ioctls.h
index 740219c2c894..68e19b689a00 100644
--- a/arch/mips/include/uapi/asm/ioctls.h
+++ b/arch/mips/include/uapi/asm/ioctls.h
@@ -91,6 +91,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 /* I hope the range from 0x5480 on is free ... */
 #define TIOCSCTTY	0x5480		/* become controlling tty */
diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
index b6572f051b67..674c68a5bbd0 100644
--- a/arch/parisc/include/uapi/asm/ioctls.h
+++ b/arch/parisc/include/uapi/asm/ioctls.h
@@ -60,6 +60,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define FIONCLEX	0x5450  /* these numbers need to be adjusted. */
 #define FIOCLEX		0x5451
diff --git a/arch/powerpc/include/uapi/asm/ioctls.h b/arch/powerpc/include/uapi/asm/ioctls.h
index 49a25796a61a..bfd609a3e928 100644
--- a/arch/powerpc/include/uapi/asm/ioctls.h
+++ b/arch/powerpc/include/uapi/asm/ioctls.h
@@ -100,6 +100,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/sh/include/uapi/asm/ioctls.h b/arch/sh/include/uapi/asm/ioctls.h
index c9903e56ccf4..eec7901e9e65 100644
--- a/arch/sh/include/uapi/asm/ioctls.h
+++ b/arch/sh/include/uapi/asm/ioctls.h
@@ -93,6 +93,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define TIOCSERCONFIG	_IO('T', 83) /* 0x5453 */
 #define TIOCSERGWILD	_IOR('T', 84,  int) /* 0x5454 */
diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
index 06b3f6c3bb9a..6d27398632ea 100644
--- a/arch/sparc/include/uapi/asm/ioctls.h
+++ b/arch/sparc/include/uapi/asm/ioctls.h
@@ -27,7 +27,7 @@
 #define TIOCGRS485	_IOR('T', 0x41, struct serial_rs485)
 #define TIOCSRS485	_IOWR('T', 0x42, struct serial_rs485)
 
-/* Note that all the ioctls that are not available in Linux have a 
+/* Note that all the ioctls that are not available in Linux have a
  * double underscore on the front to: a) avoid some programs to
  * think we support some ioctls under Linux (autoconfiguration stuff)
  */
@@ -88,6 +88,7 @@
 #define TIOCGPTN	_IOR('t', 134, unsigned int) /* Get Pty Number */
 #define TIOCSPTLCK	_IOW('t', 135, int) /* Lock/unlock PTY */
 #define TIOCSIG		_IOW('t', 136, int) /* Generate signal on Pty slave */
+#define TIOCGPTPEER	_IOR('t', 137, int) /* Safely open the slave */
 
 /* Little f */
 #define FIOCLEX		_IO('f', 1)
diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/uapi/asm/ioctls.h
index 518954e74e6d..98b004e24e85 100644
--- a/arch/xtensa/include/uapi/asm/ioctls.h
+++ b/arch/xtensa/include/uapi/asm/ioctls.h
@@ -105,6 +105,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define TIOCSERCONFIG	_IO('T', 83)
 #define TIOCSERGWILD	_IOR('T', 84,  int)
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 2a6bd9ae3f8b..d1399aac05a1 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -24,6 +24,9 @@
 #include <linux/slab.h>
 #include <linux/mutex.h>
 #include <linux/poll.h>
+#include <linux/mount.h>
+#include <linux/file.h>
+#include <linux/ioctl.h>
 
 #undef TTY_DEBUG_HANGUP
 #ifdef TTY_DEBUG_HANGUP
@@ -66,8 +69,13 @@ static void pty_close(struct tty_struct *tty, struct file *filp)
 #ifdef CONFIG_UNIX98_PTYS
 		if (tty->driver == ptm_driver) {
 			mutex_lock(&devpts_mutex);
-			if (tty->link->driver_data)
-				devpts_pty_kill(tty->link->driver_data);
+			if (tty->link->driver_data) {
+				struct path *path = tty->link->driver_data;
+
+				devpts_pty_kill(path->dentry);
+				path_put(path);
+				kfree(path);
+			}
 			mutex_unlock(&devpts_mutex);
 		}
 #endif
@@ -440,6 +448,48 @@ static int pty_common_install(struct tty_driver *driver, struct tty_struct *tty,
 	return retval;
 }
 
+/**
+ *	pty_open_peer - open the peer of a pty
+ *	@tty: the peer of the pty being opened
+ *
+ *	Open the cached dentry in tty->link, providing a safe way for userspace
+ *	to get the slave end of a pty (where they have the master fd and cannot
+ *	access or trust the mount namespace /dev/pts was mounted inside).
+ */
+static struct file *pty_open_peer(struct tty_struct *tty, int flags)
+{
+	if (tty->driver->subtype != PTY_TYPE_MASTER)
+		return ERR_PTR(-EIO);
+	return dentry_open(tty->link->driver_data, flags, current_cred());
+}
+
+static int pty_get_peer(struct tty_struct *tty, int flags)
+{
+	int fd = -1;
+	struct file *filp = NULL;
+	int retval = -EINVAL;
+
+	fd = get_unused_fd_flags(0);
+	if (fd < 0) {
+		retval = fd;
+		goto err;
+	}
+
+	filp = pty_open_peer(tty, flags);
+	if (IS_ERR(filp)) {
+		retval = PTR_ERR(filp);
+		goto err_put;
+	}
+
+	fd_install(fd, filp);
+	return fd;
+
+err_put:
+	put_unused_fd(fd);
+err:
+	return retval;
+}
+
 static void pty_cleanup(struct tty_struct *tty)
 {
 	tty_port_put(tty->port);
@@ -613,6 +663,8 @@ static int pty_unix98_ioctl(struct tty_struct *tty,
 		return pty_get_pktmode(tty, (int __user *)arg);
 	case TIOCGPTN: /* Get PT Number */
 		return put_user(tty->index, (unsigned int __user *)arg);
+	case TIOCGPTPEER: /* Open the other end */
+		return pty_get_peer(tty, (int) arg);
 	case TIOCSIG:    /* Send signal to other side of pty */
 		return pty_signal(tty, (int) arg);
 	}
@@ -740,6 +792,7 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 {
 	struct pts_fs_info *fsi;
 	struct tty_struct *tty;
+	struct path *pts_path;
 	struct dentry *dentry;
 	int retval;
 	int index;
@@ -793,16 +846,26 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 		retval = PTR_ERR(dentry);
 		goto err_release;
 	}
-	tty->link->driver_data = dentry;
+	/* We need to cache a fake path for TIOCGPTPEER. */
+	pts_path = kmalloc(sizeof(struct path), GFP_KERNEL);
+	if (!pts_path)
+		goto err_release;
+	pts_path->mnt = filp->f_path.mnt;
+	pts_path->dentry = dentry;
+	path_get(pts_path);
+	tty->link->driver_data = pts_path;
 
 	retval = ptm_driver->ops->open(tty, filp);
 	if (retval)
-		goto err_release;
+		goto err_path_put;
 
 	tty_debug_hangup(tty, "opening (count=%d)\n", tty->count);
 
 	tty_unlock(tty);
 	return 0;
+err_path_put:
+	path_put(pts_path);
+	kfree(pts_path);
 err_release:
 	tty_unlock(tty);
 	// This will also put-ref the fsi
diff --git a/include/uapi/asm-generic/ioctls.h b/include/uapi/asm-generic/ioctls.h
index 143dacbb7d9a..06d5f7ddf84e 100644
--- a/include/uapi/asm-generic/ioctls.h
+++ b/include/uapi/asm-generic/ioctls.h
@@ -77,6 +77,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
 
 #define FIONCLEX	0x5450
 #define FIOCLEX		0x5451
-- 
2.13.0



From - Thu Nov 08 21:39:52 2018
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Subject: Re: [PATCH v3 1/2] tty: add compat_ioctl callbacks
Date: Sat, 3 Jun 2017 22:16:22 +0800
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Cc: kbuild-all@01.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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--2fHTh5uZTiUOsy+g
Content-Type: text/plain; charset=us-ascii
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Hi Aleksa,

[auto build test WARNING on linus/master]
[also build test WARNING on v4.12-rc3 next-20170602]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Aleksa-Sarai/tty-add-TIOCGPTPEER-ioctl/20170603-220322
config: i386-randconfig-x018-201722 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

>> cc1: warning: -malign-functions is obsolete, use -falign-functions
>> cc1: warning: -malign-jumps is obsolete, use -falign-jumps
>> cc1: warning: -malign-loops is obsolete, use -falign-loops
   cc1: error: -Werror=int-in-bool-context: no option -Wint-in-bool-context
   kernel/bounds.c:1:0: error: CPU you selected does not support x86-64 instruction set
    /*
    
   kernel/bounds.c:1:0: error: CPU you selected does not support x86-64 instruction set
   kernel/bounds.c:1:0: warning: -mregparm is ignored in 64-bit mode
   make[2]: *** [kernel/bounds.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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--2fHTh5uZTiUOsy+g--


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Subject: Re: [PATCH v3 1/2] tty: add compat_ioctl callbacks
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--J/dobhs11T7y2rNN
Content-Type: text/plain; charset=us-ascii
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Hi Aleksa,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.12-rc3 next-20170602]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Aleksa-Sarai/tty-add-TIOCGPTPEER-ioctl/20170603-220322
config: x86_64-randconfig-x010-201722 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

>> cc1: error: -Werror=int-in-bool-context: no option -Wint-in-bool-context
   make[2]: *** [kernel/bounds.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From - Thu Nov 08 21:39:53 2018
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X-Mozilla-Keys:                                                                                 
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From: Yuval Shaia <yuval.shaia@oracle.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network
Subject: [PATCH] net/dec: Make __de_get_link_ksettings return void
Date: Sun,  4 Jun 2017 20:08:51 +0300
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Xref: news.gmane.org gmane.linux.ports.parisc:27454 gmane.linux.network:474164
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/27454>

Make return value void since function never return meaningfull value

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
---
 drivers/net/ethernet/dec/tulip/de2104x.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/de2104x.c b/drivers/net/ethernet/dec/tulip/de2104x.c
index 91b8f6f..c87b8cc 100644
--- a/drivers/net/ethernet/dec/tulip/de2104x.c
+++ b/drivers/net/ethernet/dec/tulip/de2104x.c
@@ -1483,8 +1483,8 @@ static void __de_get_regs(struct de_private *de, u8 *buf)
 	de_rx_missed(de, rbuf[8]);
 }
 
-static int __de_get_link_ksettings(struct de_private *de,
-				   struct ethtool_link_ksettings *cmd)
+static void __de_get_link_ksettings(struct de_private *de,
+				    struct ethtool_link_ksettings *cmd)
 {
 	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
 						de->media_supported);
@@ -1517,8 +1517,6 @@ static int __de_get_link_ksettings(struct de_private *de,
 		cmd->base.autoneg = AUTONEG_ENABLE;
 
 	/* ignore maxtxpkt, maxrxpkt for now */

From - Thu Nov 08 21:39:53 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network
Subject: Re: [PATCH] net/dec: Make __de_get_link_ksettings return void
Date: Sun, 4 Jun 2017 20:22:05 +0300
Lines: 63
Approved: news@gmane.org
Message-ID: <4391c380-f7f6-d549-a225-716b9b9df664@cogentembedded.com>
References: <20170604170851.3808-1-yuval.shaia@oracle.com>
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To: Yuval Shaia <yuval.shaia@oracle.com>, davem@davemloft.net,
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Hello!

On 6/4/2017 8:08 PM, Yuval Shaia wrote:

> Make return value void since function never return meaningfull value

   You only make 1 of 2 functions void. It looks like there should be 2 patches.

>
> Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
> ---
>  drivers/net/ethernet/dec/tulip/de2104x.c | 11 ++++-------
>  1 file changed, 4 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/net/ethernet/dec/tulip/de2104x.c b/drivers/net/ethernet/dec/tulip/de2104x.c
> index 91b8f6f..c87b8cc 100644
> --- a/drivers/net/ethernet/dec/tulip/de2104x.c
> +++ b/drivers/net/ethernet/dec/tulip/de2104x.c
> @@ -1483,8 +1483,8 @@ static void __de_get_regs(struct de_private *de, u8 *buf)
>  	de_rx_missed(de, rbuf[8]);
>  }
>
> -static int __de_get_link_ksettings(struct de_private *de,
> -				   struct ethtool_link_ksettings *cmd)
> +static void __de_get_link_ksettings(struct de_private *de,
> +				    struct ethtool_link_ksettings *cmd)
>  {
>  	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
>  						de->media_supported);
> @@ -1517,8 +1517,6 @@ static int __de_get_link_ksettings(struct de_private *de,
>  		cmd->base.autoneg = AUTONEG_ENABLE;
>
>  	/* ignore maxtxpkt, maxrxpkt for now */
> -
> -	return 0;
>  }
>
>  static int __de_set_link_ksettings(struct de_private *de,
> @@ -1615,13 +1613,12 @@ static int de_get_link_ksettings(struct net_device *dev,
>  				 struct ethtool_link_ksettings *cmd)
>  {
>  	struct de_private *de = netdev_priv(dev);
> -	int rc;
>
>  	spin_lock_irq(&de->lock);
> -	rc = __de_get_link_ksettings(de, cmd);
> +	__de_get_link_ksettings(de, cmd);
>  	spin_unlock_irq(&de->lock);
>
> -	return rc;
> +	return 0;
>  }
>
>  static int de_set_link_ksettings(struct net_device *dev,
>

MBR, Sergei

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On 6/4/2017 8:22 PM, Sergei Shtylyov wrote:

>> Make return value void since function never return meaningfull value
>
>   You only make 1 of 2 functions void. It looks like there should be 2 patches.

    Oh, sorry, I was just blind. B-)

MBR, Sergei

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Subject: [PATCH] net/{mii,
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Make return value void since functions never returns meaningfull value.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
---
 drivers/net/cris/eth_v10.c                              |  5 ++---
 drivers/net/ethernet/3com/3c59x.c                       |  4 +++-
 drivers/net/ethernet/amd/pcnet32.c                      |  5 +----
 drivers/net/ethernet/cirrus/ep93xx_eth.c                |  5 ++++-
 drivers/net/ethernet/dec/tulip/winbond-840.c            |  5 ++---
 drivers/net/ethernet/faraday/ftmac100.c                 |  5 ++++-
 drivers/net/ethernet/fealnx.c                           |  5 ++---
 drivers/net/ethernet/intel/e100.c                       |  5 ++++-
 drivers/net/ethernet/jme.c                              |  5 ++---
 drivers/net/ethernet/korina.c                           |  5 ++---
 drivers/net/ethernet/micrel/ks8851.c                    |  5 ++++-
 drivers/net/ethernet/micrel/ks8851_mll.c                |  5 ++++-
 drivers/net/ethernet/nuvoton/w90p910_ether.c            |  5 ++++-
 drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c |  6 +++---
 drivers/net/ethernet/realtek/8139cp.c                   |  5 ++---
 drivers/net/ethernet/realtek/r8169.c                    |  4 +++-
 drivers/net/ethernet/sgi/ioc3-eth.c                     |  5 ++---
 drivers/net/ethernet/sis/sis190.c                       |  4 +++-
 drivers/net/ethernet/smsc/epic100.c                     |  5 ++---
 drivers/net/ethernet/smsc/smc911x.c                     |  7 +++----
 drivers/net/ethernet/smsc/smc91c92_cs.c                 | 13 +++++--------
 drivers/net/ethernet/smsc/smc91x.c                      |  7 ++-----
 drivers/net/ethernet/tundra/tsi108_eth.c                |  5 ++---
 drivers/net/ethernet/via/via-rhine.c                    |  5 ++---
 drivers/net/mii.c                                       |  8 ++------
 drivers/net/usb/ax88179_178a.c                          |  5 ++++-
 drivers/net/usb/r8152.c                                 |  2 +-
 drivers/net/usb/usbnet.c                                |  4 +++-
 include/linux/mii.h                                     |  2 +-
 29 files changed, 78 insertions(+), 73 deletions(-)

diff --git a/drivers/net/cris/eth_v10.c b/drivers/net/cris/eth_v10.c
index da02041..017f48c 100644
--- a/drivers/net/cris/eth_v10.c
+++ b/drivers/net/cris/eth_v10.c
@@ -1417,10 +1417,9 @@ static int e100_get_link_ksettings(struct net_device *dev,
 {
 	struct net_local *np = netdev_priv(dev);
 	u32 supported;
-	int err;
 
 	spin_lock_irq(&np->lock);
-	err = mii_ethtool_get_link_ksettings(&np->mii_if, cmd);
+	mii_ethtool_get_link_ksettings(&np->mii_if, cmd);
 	spin_unlock_irq(&np->lock);
 
 	/* The PHY may support 1000baseT, but the Etrax100 does not.  */
@@ -1432,7 +1431,7 @@ static int e100_get_link_ksettings(struct net_device *dev,
 	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
 						supported);
 
-	return err;
+	return 0;
 }
 
 static int e100_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index e41245a..14cff60 100644
--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -2912,7 +2912,9 @@ static int vortex_get_link_ksettings(struct net_device *dev,
 {
 	struct vortex_private *vp = netdev_priv(dev);
 
-	return mii_ethtool_get_link_ksettings(&vp->mii, cmd);
+	mii_ethtool_get_link_ksettings(&vp->mii, cmd);
+
+	return 0;
 }
 
 static int vortex_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index 86369d7..7f60d17 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -731,12 +731,10 @@ static int pcnet32_get_link_ksettings(struct net_device *dev,
 {
 	struct pcnet32_private *lp = netdev_priv(dev);
 	unsigned long flags;
-	int r = -EOPNOTSUPP;
 
 	spin_lock_irqsave(&lp->lock, flags);
 	if (lp->mii) {
 		mii_ethtool_get_link_ksettings(&lp->mii_if, cmd);
-		r = 0;
 	} else if (lp->chip_version == PCNET32_79C970A) {
 		if (lp->autoneg) {
 			cmd->base.autoneg = AUTONEG_ENABLE;
@@ -753,10 +751,9 @@ static int pcnet32_get_link_ksettings(struct net_device *dev,
 		ethtool_convert_legacy_u32_to_link_mode(
 						cmd->link_modes.supported,
 						SUPPORTED_TP | SUPPORTED_AUI);
-		r = 0;
 	}
 	spin_unlock_irqrestore(&lp->lock, flags);
-	return r;
+	return 0;
 }
 
 static int pcnet32_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/cirrus/ep93xx_eth.c b/drivers/net/ethernet/cirrus/ep93xx_eth.c
index 7a7c02f..e2a7029 100644
--- a/drivers/net/ethernet/cirrus/ep93xx_eth.c
+++ b/drivers/net/ethernet/cirrus/ep93xx_eth.c
@@ -702,7 +702,10 @@ static int ep93xx_get_link_ksettings(struct net_device *dev,
 				     struct ethtool_link_ksettings *cmd)
 {
 	struct ep93xx_priv *ep = netdev_priv(dev);
-	return mii_ethtool_get_link_ksettings(&ep->mii, cmd);
+
+	mii_ethtool_get_link_ksettings(&ep->mii, cmd);
+
+	return 0;
 }
 
 static int ep93xx_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/dec/tulip/winbond-840.c b/drivers/net/ethernet/dec/tulip/winbond-840.c
index d1f2f3c..32d7229 100644
--- a/drivers/net/ethernet/dec/tulip/winbond-840.c
+++ b/drivers/net/ethernet/dec/tulip/winbond-840.c
@@ -1395,13 +1395,12 @@ static int netdev_get_link_ksettings(struct net_device *dev,
 				     struct ethtool_link_ksettings *cmd)
 {
 	struct netdev_private *np = netdev_priv(dev);
-	int rc;
 
 	spin_lock_irq(&np->lock);
-	rc = mii_ethtool_get_link_ksettings(&np->mii_if, cmd);
+	mii_ethtool_get_link_ksettings(&np->mii_if, cmd);
 	spin_unlock_irq(&np->lock);
 
-	return rc;
+	return 0;
 }
 
 static int netdev_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c
index 1536356..66928a9 100644
--- a/drivers/net/ethernet/faraday/ftmac100.c
+++ b/drivers/net/ethernet/faraday/ftmac100.c
@@ -829,7 +829,10 @@ static int ftmac100_get_link_ksettings(struct net_device *netdev,
 				       struct ethtool_link_ksettings *cmd)
 {
 	struct ftmac100 *priv = netdev_priv(netdev);
-	return mii_ethtool_get_link_ksettings(&priv->mii, cmd);
+
+	mii_ethtool_get_link_ksettings(&priv->mii, cmd);
+
+	return 0;
 }
 
 static int ftmac100_set_link_ksettings(struct net_device *netdev,
diff --git a/drivers/net/ethernet/fealnx.c b/drivers/net/ethernet/fealnx.c
index 766636a..610f9c0 100644
--- a/drivers/net/ethernet/fealnx.c
+++ b/drivers/net/ethernet/fealnx.c
@@ -1821,13 +1821,12 @@ static int netdev_get_link_ksettings(struct net_device *dev,
 				     struct ethtool_link_ksettings *cmd)
 {
 	struct netdev_private *np = netdev_priv(dev);
-	int rc;
 
 	spin_lock_irq(&np->lock);
-	rc = mii_ethtool_get_link_ksettings(&np->mii, cmd);
+	mii_ethtool_get_link_ksettings(&np->mii, cmd);
 	spin_unlock_irq(&np->lock);
 
-	return rc;
+	return 0;
 }
 
 static int netdev_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c
index 2b7323d..4d10270 100644
--- a/drivers/net/ethernet/intel/e100.c
+++ b/drivers/net/ethernet/intel/e100.c
@@ -2430,7 +2430,10 @@ static int e100_get_link_ksettings(struct net_device *netdev,
 				   struct ethtool_link_ksettings *cmd)
 {
 	struct nic *nic = netdev_priv(netdev);
-	return mii_ethtool_get_link_ksettings(&nic->mii, cmd);
+
+	mii_ethtool_get_link_ksettings(&nic->mii, cmd);
+
+	return 0;
 }
 
 static int e100_set_link_ksettings(struct net_device *netdev,
diff --git a/drivers/net/ethernet/jme.c b/drivers/net/ethernet/jme.c
index f580b49..a70440b 100644
--- a/drivers/net/ethernet/jme.c
+++ b/drivers/net/ethernet/jme.c
@@ -2652,12 +2652,11 @@ jme_get_link_ksettings(struct net_device *netdev,
 		       struct ethtool_link_ksettings *cmd)
 {
 	struct jme_adapter *jme = netdev_priv(netdev);
-	int rc;
 
 	spin_lock_bh(&jme->phy_lock);
-	rc = mii_ethtool_get_link_ksettings(&jme->mii_if, cmd);
+	mii_ethtool_get_link_ksettings(&jme->mii_if, cmd);
 	spin_unlock_bh(&jme->phy_lock);
-	return rc;
+	return 0;
 }
 
 static int
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index 9fae98c..3c0a645 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -699,13 +699,12 @@ static int netdev_get_link_ksettings(struct net_device *dev,
 				     struct ethtool_link_ksettings *cmd)
 {
 	struct korina_private *lp = netdev_priv(dev);
-	int rc;
 
 	spin_lock_irq(&lp->lock);
-	rc = mii_ethtool_get_link_ksettings(&lp->mii_if, cmd);
+	mii_ethtool_get_link_ksettings(&lp->mii_if, cmd);
 	spin_unlock_irq(&lp->lock);
 
-	return rc;
+	return 0;
 }
 
 static int netdev_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/micrel/ks8851.c b/drivers/net/ethernet/micrel/ks8851.c
index 20358f8..2fe96f1 100644
--- a/drivers/net/ethernet/micrel/ks8851.c
+++ b/drivers/net/ethernet/micrel/ks8851.c
@@ -1071,7 +1071,10 @@ static int ks8851_get_link_ksettings(struct net_device *dev,
 				     struct ethtool_link_ksettings *cmd)
 {
 	struct ks8851_net *ks = netdev_priv(dev);
-	return mii_ethtool_get_link_ksettings(&ks->mii, cmd);
+
+	mii_ethtool_get_link_ksettings(&ks->mii, cmd);
+
+	return 0;
 }
 
 static int ks8851_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/micrel/ks8851_mll.c b/drivers/net/ethernet/micrel/ks8851_mll.c
index 7647f7b..f3e9dd4 100644
--- a/drivers/net/ethernet/micrel/ks8851_mll.c
+++ b/drivers/net/ethernet/micrel/ks8851_mll.c
@@ -1315,7 +1315,10 @@ static int ks_get_link_ksettings(struct net_device *netdev,
 				 struct ethtool_link_ksettings *cmd)
 {
 	struct ks_net *ks = netdev_priv(netdev);
-	return mii_ethtool_get_link_ksettings(&ks->mii, cmd);
+
+	mii_ethtool_get_link_ksettings(&ks->mii, cmd);
+
+	return 0;
 }
 
 static int ks_set_link_ksettings(struct net_device *netdev,
diff --git a/drivers/net/ethernet/nuvoton/w90p910_ether.c b/drivers/net/ethernet/nuvoton/w90p910_ether.c
index 159564d..89ab786 100644
--- a/drivers/net/ethernet/nuvoton/w90p910_ether.c
+++ b/drivers/net/ethernet/nuvoton/w90p910_ether.c
@@ -868,7 +868,10 @@ static int w90p910_get_link_ksettings(struct net_device *dev,
 				      struct ethtool_link_ksettings *cmd)
 {
 	struct w90p910_ether *ether = netdev_priv(dev);
-	return mii_ethtool_get_link_ksettings(&ether->mii, cmd);
+
+	mii_ethtool_get_link_ksettings(&ether->mii, cmd);
+
+	return 0;
 }
 
 static int w90p910_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c
index 2109327..731ce1e 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c
@@ -85,9 +85,8 @@ static int pch_gbe_get_link_ksettings(struct net_device *netdev,
 {
 	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 	u32 supported, advertising;
-	int ret;
 
-	ret = mii_ethtool_get_link_ksettings(&adapter->mii, ecmd);
+	mii_ethtool_get_link_ksettings(&adapter->mii, ecmd);
 
 	ethtool_convert_link_mode_to_legacy_u32(&supported,
 						ecmd->link_modes.supported);
@@ -104,7 +103,8 @@ static int pch_gbe_get_link_ksettings(struct net_device *netdev,
 
 	if (!netif_carrier_ok(adapter->netdev))
 		ecmd->base.speed = SPEED_UNKNOWN;
-	return ret;
+
+	return 0;
 }
 
 /**
diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c
index 72233ab..e7ab23e 100644
--- a/drivers/net/ethernet/realtek/8139cp.c
+++ b/drivers/net/ethernet/realtek/8139cp.c
@@ -1410,14 +1410,13 @@ static int cp_get_link_ksettings(struct net_device *dev,
 				 struct ethtool_link_ksettings *cmd)
 {
 	struct cp_private *cp = netdev_priv(dev);
-	int rc;
 	unsigned long flags;
 
 	spin_lock_irqsave(&cp->lock, flags);
-	rc = mii_ethtool_get_link_ksettings(&cp->mii_if, cmd);
+	mii_ethtool_get_link_ksettings(&cp->mii_if, cmd);
 	spin_unlock_irqrestore(&cp->lock, flags);
 
-	return rc;
+	return 0;
 }
 
 static int cp_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 0a8f281..bd07a15 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -2148,7 +2148,9 @@ static int rtl8169_get_link_ksettings_xmii(struct net_device *dev,
 {
 	struct rtl8169_private *tp = netdev_priv(dev);
 
-	return mii_ethtool_get_link_ksettings(&tp->mii, cmd);
+	mii_ethtool_get_link_ksettings(&tp->mii, cmd);
+
+	return 0;
 }
 
 static int rtl8169_get_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c
index 52ead55..b607936 100644
--- a/drivers/net/ethernet/sgi/ioc3-eth.c
+++ b/drivers/net/ethernet/sgi/ioc3-eth.c
@@ -1562,13 +1562,12 @@ static int ioc3_get_link_ksettings(struct net_device *dev,
 				   struct ethtool_link_ksettings *cmd)
 {
 	struct ioc3_private *ip = netdev_priv(dev);
-	int rc;
 
 	spin_lock_irq(&ip->ioc3_lock);
-	rc = mii_ethtool_get_link_ksettings(&ip->mii, cmd);
+	mii_ethtool_get_link_ksettings(&ip->mii, cmd);
 	spin_unlock_irq(&ip->ioc3_lock);
 
-	return rc;
+	return 0;
 }
 
 static int ioc3_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/sis/sis190.c b/drivers/net/ethernet/sis/sis190.c
index 02da106..445109b 100644
--- a/drivers/net/ethernet/sis/sis190.c
+++ b/drivers/net/ethernet/sis/sis190.c
@@ -1739,7 +1739,9 @@ static int sis190_get_link_ksettings(struct net_device *dev,
 {
 	struct sis190_private *tp = netdev_priv(dev);
 
-	return mii_ethtool_get_link_ksettings(&tp->mii_if, cmd);
+	mii_ethtool_get_link_ksettings(&tp->mii_if, cmd);
+
+	return 0;
 }
 
 static int sis190_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/smsc/epic100.c b/drivers/net/ethernet/smsc/epic100.c
index db6dcb0..6a0e1d4 100644
--- a/drivers/net/ethernet/smsc/epic100.c
+++ b/drivers/net/ethernet/smsc/epic100.c
@@ -1391,13 +1391,12 @@ static int netdev_get_link_ksettings(struct net_device *dev,
 				     struct ethtool_link_ksettings *cmd)
 {
 	struct epic_private *np = netdev_priv(dev);
-	int rc;
 
 	spin_lock_irq(&np->lock);
-	rc = mii_ethtool_get_link_ksettings(&np->mii, cmd);
+	mii_ethtool_get_link_ksettings(&np->mii, cmd);
 	spin_unlock_irq(&np->lock);
 
-	return rc;
+	return 0;
 }
 
 static int netdev_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c
index 36307d3..0515744 100644
--- a/drivers/net/ethernet/smsc/smc911x.c
+++ b/drivers/net/ethernet/smsc/smc911x.c
@@ -1450,7 +1450,7 @@ smc911x_ethtool_get_link_ksettings(struct net_device *dev,
 				   struct ethtool_link_ksettings *cmd)
 {
 	struct smc911x_local *lp = netdev_priv(dev);
-	int ret, status;
+	int status;
 	unsigned long flags;
 	u32 supported;
 
@@ -1458,7 +1458,7 @@ smc911x_ethtool_get_link_ksettings(struct net_device *dev,
 
 	if (lp->phy_type != 0) {
 		spin_lock_irqsave(&lp->lock, flags);
-		ret = mii_ethtool_get_link_ksettings(&lp->mii, cmd);
+		mii_ethtool_get_link_ksettings(&lp->mii, cmd);
 		spin_unlock_irqrestore(&lp->lock, flags);
 	} else {
 		supported = SUPPORTED_10baseT_Half |
@@ -1480,10 +1480,9 @@ smc911x_ethtool_get_link_ksettings(struct net_device *dev,
 		ethtool_convert_legacy_u32_to_link_mode(
 			cmd->link_modes.supported, supported);
 
-		ret = 0;
 	}
 
-	return ret;
+	return 0;
 }
 
 static int
diff --git a/drivers/net/ethernet/smsc/smc91c92_cs.c b/drivers/net/ethernet/smsc/smc91c92_cs.c
index 976aa87..92c927a 100644
--- a/drivers/net/ethernet/smsc/smc91c92_cs.c
+++ b/drivers/net/ethernet/smsc/smc91c92_cs.c
@@ -1843,8 +1843,8 @@ static int smc_link_ok(struct net_device *dev)
     }
 }
 
-static int smc_netdev_get_ecmd(struct net_device *dev,
-			       struct ethtool_link_ksettings *ecmd)
+static void smc_netdev_get_ecmd(struct net_device *dev,
+				struct ethtool_link_ksettings *ecmd)
 {
 	u16 tmp;
 	unsigned int ioaddr = dev->base_addr;
@@ -1865,8 +1865,6 @@ static int smc_netdev_get_ecmd(struct net_device *dev,
 
 	ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.supported,
 						supported);
-
-	return 0;
 }
 
 static int smc_netdev_set_ecmd(struct net_device *dev,
@@ -1918,18 +1916,17 @@ static int smc_get_link_ksettings(struct net_device *dev,
 	struct smc_private *smc = netdev_priv(dev);
 	unsigned int ioaddr = dev->base_addr;
 	u16 saved_bank = inw(ioaddr + BANK_SELECT);
-	int ret;
 	unsigned long flags;
 
 	spin_lock_irqsave(&smc->lock, flags);
 	SMC_SELECT_BANK(3);
 	if (smc->cfg & CFG_MII_SELECT)
-		ret = mii_ethtool_get_link_ksettings(&smc->mii_if, ecmd);
+		mii_ethtool_get_link_ksettings(&smc->mii_if, ecmd);
 	else
-		ret = smc_netdev_get_ecmd(dev, ecmd);
+		smc_netdev_get_ecmd(dev, ecmd);
 	SMC_SELECT_BANK(saved_bank);
 	spin_unlock_irqrestore(&smc->lock, flags);
-	return ret;
+	return 0;
 }
 
 static int smc_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index 91e9bd7..0d230b1 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -1539,11 +1539,10 @@ smc_ethtool_get_link_ksettings(struct net_device *dev,
 			       struct ethtool_link_ksettings *cmd)
 {
 	struct smc_local *lp = netdev_priv(dev);
-	int ret;
 
 	if (lp->phy_type != 0) {
 		spin_lock_irq(&lp->lock);
-		ret = mii_ethtool_get_link_ksettings(&lp->mii, cmd);
+		mii_ethtool_get_link_ksettings(&lp->mii, cmd);
 		spin_unlock_irq(&lp->lock);
 	} else {
 		u32 supported = SUPPORTED_10baseT_Half |
@@ -1562,11 +1561,9 @@ smc_ethtool_get_link_ksettings(struct net_device *dev,
 
 		ethtool_convert_legacy_u32_to_link_mode(
 			cmd->link_modes.supported, supported);
-
-		ret = 0;
 	}
 
-	return ret;
+	return 0;
 }
 
 static int
diff --git a/drivers/net/ethernet/tundra/tsi108_eth.c b/drivers/net/ethernet/tundra/tsi108_eth.c
index 5ac6eaa..c2d15d9 100644
--- a/drivers/net/ethernet/tundra/tsi108_eth.c
+++ b/drivers/net/ethernet/tundra/tsi108_eth.c
@@ -1504,13 +1504,12 @@ static int tsi108_get_link_ksettings(struct net_device *dev,
 {
 	struct tsi108_prv_data *data = netdev_priv(dev);
 	unsigned long flags;
-	int rc;
 
 	spin_lock_irqsave(&data->txlock, flags);
-	rc = mii_ethtool_get_link_ksettings(&data->mii_if, cmd);
+	mii_ethtool_get_link_ksettings(&data->mii_if, cmd);
 	spin_unlock_irqrestore(&data->txlock, flags);
 
-	return rc;
+	return 0;
 }
 
 static int tsi108_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index 4cf41f7..acd29d6 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -2307,13 +2307,12 @@ static int netdev_get_link_ksettings(struct net_device *dev,
 				     struct ethtool_link_ksettings *cmd)
 {
 	struct rhine_private *rp = netdev_priv(dev);
-	int rc;
 
 	mutex_lock(&rp->task_lock);
-	rc = mii_ethtool_get_link_ksettings(&rp->mii_if, cmd);
+	mii_ethtool_get_link_ksettings(&rp->mii_if, cmd);
 	mutex_unlock(&rp->task_lock);
 
-	return rc;
+	return 0;
 }
 
 static int netdev_set_link_ksettings(struct net_device *dev,
diff --git a/drivers/net/mii.c b/drivers/net/mii.c
index 6d953c5..44612122 100644
--- a/drivers/net/mii.c
+++ b/drivers/net/mii.c
@@ -141,11 +141,9 @@ int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
  *
  * The @cmd parameter is expected to have been cleared before calling
  * mii_ethtool_get_link_ksettings().
- *
- * Returns 0 for success, negative on error.
  */
-int mii_ethtool_get_link_ksettings(struct mii_if_info *mii,
-				   struct ethtool_link_ksettings *cmd)
+void mii_ethtool_get_link_ksettings(struct mii_if_info *mii,
+				    struct ethtool_link_ksettings *cmd)
 {
 	struct net_device *dev = mii->dev;
 	u16 bmcr, bmsr, ctrl1000 = 0, stat1000 = 0;
@@ -227,8 +225,6 @@ int mii_ethtool_get_link_ksettings(struct mii_if_info *mii,
 						lp_advertising);
 
 	/* ignore maxtxpkt, maxrxpkt for now */
-
-	return 0;
 }
 
 /**
diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 51cf600..793ce90 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -624,7 +624,10 @@ static int ax88179_get_link_ksettings(struct net_device *net,
 				      struct ethtool_link_ksettings *cmd)
 {
 	struct usbnet *dev = netdev_priv(net);
-	return mii_ethtool_get_link_ksettings(&dev->mii, cmd);
+
+	mii_ethtool_get_link_ksettings(&dev->mii, cmd);
+
+	return 0;
 }
 
 static int ax88179_set_link_ksettings(struct net_device *net,
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index ddc62cb..effa7a22 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -3841,7 +3841,7 @@ int rtl8152_get_link_ksettings(struct net_device *netdev,
 
 	mutex_lock(&tp->control);
 
-	ret = mii_ethtool_get_link_ksettings(&tp->mii, cmd);
+	mii_ethtool_get_link_ksettings(&tp->mii, cmd);
 
 	mutex_unlock(&tp->control);
 
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 79048e7..6510e5c 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -956,7 +956,9 @@ int usbnet_get_link_ksettings(struct net_device *net,
 	if (!dev->mii.mdio_read)
 		return -EOPNOTSUPP;
 
-	return mii_ethtool_get_link_ksettings(&dev->mii, cmd);
+	mii_ethtool_get_link_ksettings(&dev->mii, cmd);
+
+	return 0;
 }
 EXPORT_SYMBOL_GPL(usbnet_get_link_ksettings);
 
diff --git a/include/linux/mii.h b/include/linux/mii.h
index 1629a0c..e870bfa 100644
--- a/include/linux/mii.h
+++ b/include/linux/mii.h
@@ -31,7 +31,7 @@ struct mii_if_info {
 extern int mii_link_ok (struct mii_if_info *mii);
 extern int mii_nway_restart (struct mii_if_info *mii);
 extern int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd);
-extern int mii_ethtool_get_link_ksettings(
+extern void mii_ethtool_get_link_ksettings(
 	struct mii_if_info *mii, struct ethtool_link_ksettings *cmd);
 extern int mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd);
 extern int mii_ethtool_set_link_ksettings(
-- 
2.9.4

From - Thu Nov 08 21:39:53 2018
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Subject: Re: [PATCH] net/{mii,smsc}: Make mii_ethtool_get_link_ksettings and
 smc_netdev_get_ecmd return void
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> diff --git a/drivers/net/cris/eth_v10.c b/drivers/net/cris/eth_v10.c
> index da02041..017f48c 100644
> --- a/drivers/net/cris/eth_v10.c
> +++ b/drivers/net/cris/eth_v10.c
> @@ -1417,10 +1417,9 @@ static int e100_get_link_ksettings(struct net_device *dev,
>  {
>  	struct net_local *np = netdev_priv(dev);
>  	u32 supported;
> -	int err;
>  
>  	spin_lock_irq(&np->lock);
> -	err = mii_ethtool_get_link_ksettings(&np->mii_if, cmd);
> +	mii_ethtool_get_link_ksettings(&np->mii_if, cmd);
>  	spin_unlock_irq(&np->lock);
>  
>  	/* The PHY may support 1000baseT, but the Etrax100 does not.  */
> @@ -1432,7 +1431,7 @@ static int e100_get_link_ksettings(struct net_device *dev,
>  	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
>  						supported);
>  
> -	return err;
> +	return 0;
>  }

How far are going planning on going? It seems like
*_get_link_ksettings() now all return a useless 0. Do you plan to
change ethtool_ops and make if void all the way up?

       Andrew
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From - Thu Nov 08 21:39:53 2018
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On Sun, Jun 04, 2017 at 09:01:33PM +0200, Andrew Lunn wrote:
> > diff --git a/drivers/net/cris/eth_v10.c b/drivers/net/cris/eth_v10.c
> > index da02041..017f48c 100644
> > --- a/drivers/net/cris/eth_v10.c
> > +++ b/drivers/net/cris/eth_v10.c
> > @@ -1417,10 +1417,9 @@ static int e100_get_link_ksettings(struct net_device *dev,
> >  {
> >  	struct net_local *np = netdev_priv(dev);
> >  	u32 supported;
> > -	int err;
> >  
> >  	spin_lock_irq(&np->lock);
> > -	err = mii_ethtool_get_link_ksettings(&np->mii_if, cmd);
> > +	mii_ethtool_get_link_ksettings(&np->mii_if, cmd);
> >  	spin_unlock_irq(&np->lock);
> >  
> >  	/* The PHY may support 1000baseT, but the Etrax100 does not.  */
> > @@ -1432,7 +1431,7 @@ static int e100_get_link_ksettings(struct net_device *dev,
> >  	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
> >  						supported);
> >  
> > -	return err;
> > +	return 0;
> >  }
> 
> How far are going planning on going? It seems like
> *_get_link_ksettings() now all return a useless 0. Do you plan to
> change ethtool_ops and make if void all the way up?

It is not always correct, see for example how xgene_get_link_ksettings
returns non-zero value so i assume that ethtool_ops should remain as it is.
Also, looking at ethtool_get_settings it seems that returned value is
checked.

> 
>        Andrew

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On Sun, Jun 04, 2017 at 08:22:05PM +0300, Sergei Shtylyov wrote:
> Hello!
> 
> On 6/4/2017 8:08 PM, Yuval Shaia wrote:
> 
> > Make return value void since function never return meaningfull value
> 
>   You only make 1 of 2 functions void. It looks like there should be 2 patches.

And what would be the second function?

> 
> > 
> > Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
> > ---
> >  drivers/net/ethernet/dec/tulip/de2104x.c | 11 ++++-------
> >  1 file changed, 4 insertions(+), 7 deletions(-)
> > 
> > diff --git a/drivers/net/ethernet/dec/tulip/de2104x.c b/drivers/net/ethernet/dec/tulip/de2104x.c
> > index 91b8f6f..c87b8cc 100644
> > --- a/drivers/net/ethernet/dec/tulip/de2104x.c
> > +++ b/drivers/net/ethernet/dec/tulip/de2104x.c
> > @@ -1483,8 +1483,8 @@ static void __de_get_regs(struct de_private *de, u8 *buf)
> >  	de_rx_missed(de, rbuf[8]);
> >  }
> > 
> > -static int __de_get_link_ksettings(struct de_private *de,
> > -				   struct ethtool_link_ksettings *cmd)
> > +static void __de_get_link_ksettings(struct de_private *de,
> > +				    struct ethtool_link_ksettings *cmd)
> >  {
> >  	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
> >  						de->media_supported);
> > @@ -1517,8 +1517,6 @@ static int __de_get_link_ksettings(struct de_private *de,
> >  		cmd->base.autoneg = AUTONEG_ENABLE;
> > 
> >  	/* ignore maxtxpkt, maxrxpkt for now */
> > -
> > -	return 0;
> >  }
> > 
> >  static int __de_set_link_ksettings(struct de_private *de,
> > @@ -1615,13 +1613,12 @@ static int de_get_link_ksettings(struct net_device *dev,
> >  				 struct ethtool_link_ksettings *cmd)
> >  {
> >  	struct de_private *de = netdev_priv(dev);
> > -	int rc;
> > 
> >  	spin_lock_irq(&de->lock);
> > -	rc = __de_get_link_ksettings(de, cmd);
> > +	__de_get_link_ksettings(de, cmd);
> >  	spin_unlock_irq(&de->lock);
> > 
> > -	return rc;
> > +	return 0;
> >  }
> > 
> >  static int de_set_link_ksettings(struct net_device *dev,
> > 
> 
> MBR, Sergei
> 
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From: Yuval Shaia <yuval.shaia@oracle.com>
Date: Sun,  4 Jun 2017 20:08:51 +0300

> Make return value void since function never return meaningfull value
> 
> Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>

Applied to net-next.
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From: Yuval Shaia <yuval.shaia@oracle.com>
Date: Sun,  4 Jun 2017 20:22:00 +0300

> Make return value void since functions never returns meaningfull value.
> 
> Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>

Applied to net-next.


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HOME ADDRESS:

May His Fragile Soul Rest In Perfect Peace Amen !!!

Regards,

Jerry Donsin Esq.

jerrydonsin1@hotmail.fr
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On Sat, Jun 3, 2017 at 3:51 PM, Aleksa Sarai <asarai@suse.de> wrote:
> In order to avoid future diversions between fs/compat_ioctl.c and
> drivers/tty/pty.c, define .compat_ioctl callbacks for the relevant
> tty_operations structs. Since both pty_unix98_ioctl() and
> pty_bsd_ioctl() are compatible between 32-bit and 64-bit userspace no
> special translation is required.
>
> Signed-off-by: Aleksa Sarai <asarai@suse.de>
> ---
>  Makefile          |  1 +
>  drivers/tty/pty.c | 22 ++++++++++++++++++++++
>  fs/compat_ioctl.c |  6 ------
>  3 files changed, 23 insertions(+), 6 deletions(-)
>
> diff --git a/Makefile b/Makefile
> index 470bd4d9513a..fb689286d83a 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -401,6 +401,7 @@ KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
>                    -fno-strict-aliasing -fno-common \
>                    -Werror-implicit-function-declaration \
>                    -Wno-format-security \
> +                  -Wno-error=int-in-bool-context \
>                    -std=gnu89 $(call cc-option,-fno-PIE)

This  slipped in by accident I assume? It seems completely unrelated.

> diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
> index 65799575c666..2a6bd9ae3f8b 100644
> --- a/drivers/tty/pty.c
> +++ b/drivers/tty/pty.c
> @@ -481,6 +481,16 @@ static int pty_bsd_ioctl(struct tty_struct *tty,
>         return -ENOIOCTLCMD;
>  }
>
> +static long pty_bsd_compat_ioctl(struct tty_struct *tty,
> +                                unsigned int cmd, unsigned long arg)
> +{
> +       /*
> +        * PTY ioctls don't require any special translation between 32-bit and
> +        * 64-bit userspace, they are already compatible.
> +        */
> +       return pty_bsd_ioctl(tty, cmd, arg);
> +}
> +

This looks correct but unnecessary, you can simply point both
function pointers to the same function:

>   * not really modular, but the easiest way to keep compat with existing
> @@ -502,6 +512,7 @@ static const struct tty_operations master_pty_ops_bsd = {
>         .chars_in_buffer = pty_chars_in_buffer,
>         .unthrottle = pty_unthrottle,
>         .ioctl = pty_bsd_ioctl,
> +       .compat_ioctl = pty_bsd_compat_ioctl,

           .compat_ioctl = pty_bsd_ioctl,

The separate handler would only be required when you need any kind
of special handling depending on the command.

> diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
> index 6116d5275a3e..112b3e1e20e3 100644
> --- a/fs/compat_ioctl.c
> +++ b/fs/compat_ioctl.c
> @@ -866,8 +866,6 @@ COMPATIBLE_IOCTL(TIOCGDEV)
>  COMPATIBLE_IOCTL(TIOCCBRK)
>  COMPATIBLE_IOCTL(TIOCGSID)
>  COMPATIBLE_IOCTL(TIOCGICOUNT)
> -COMPATIBLE_IOCTL(TIOCGPKT)
> -COMPATIBLE_IOCTL(TIOCGPTLCK)
>  COMPATIBLE_IOCTL(TIOCGEXCL)
>  /* Little t */
>  COMPATIBLE_IOCTL(TIOCGETD)
> @@ -883,16 +881,12 @@ COMPATIBLE_IOCTL(TIOCMGET)
>  COMPATIBLE_IOCTL(TIOCMBIC)
>  COMPATIBLE_IOCTL(TIOCMBIS)
>  COMPATIBLE_IOCTL(TIOCMSET)
> -COMPATIBLE_IOCTL(TIOCPKT)
>  COMPATIBLE_IOCTL(TIOCNOTTY)
>  COMPATIBLE_IOCTL(TIOCSTI)
>  COMPATIBLE_IOCTL(TIOCOUTQ)
>  COMPATIBLE_IOCTL(TIOCSPGRP)
>  COMPATIBLE_IOCTL(TIOCGPGRP)
> -COMPATIBLE_IOCTL(TIOCGPTN)
> -COMPATIBLE_IOCTL(TIOCSPTLCK)
>  COMPATIBLE_IOCTL(TIOCSERGETLSR)
> -COMPATIBLE_IOCTL(TIOCSIG)

Looks good.

       Arnd
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From - Thu Nov 08 21:39:53 2018
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Subject: Re: [PATCH v3 1/2] tty: add compat_ioctl callbacks
Date: Tue, 6 Jun 2017 21:05:06 +1000
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        linux-alpha@vger.kernel.org,
        "open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
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To: Arnd Bergmann <arnd@arndb.de>
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>> diff --git a/Makefile b/Makefile
>> index 470bd4d9513a..fb689286d83a 100644
>> --- a/Makefile
>> +++ b/Makefile
>> @@ -401,6 +401,7 @@ KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
>>                     -fno-strict-aliasing -fno-common \
>>                     -Werror-implicit-function-declaration \
>>                     -Wno-format-security \
>> +                  -Wno-error=int-in-bool-context \
>>                     -std=gnu89 $(call cc-option,-fno-PIE)
> 
> This  slipped in by accident I assume? It seems completely unrelated.

Yeah, I re-sent v4 with this removed immediately afterwards.

> 
>> diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
>> index 65799575c666..2a6bd9ae3f8b 100644
>> --- a/drivers/tty/pty.c
>> +++ b/drivers/tty/pty.c
>> @@ -481,6 +481,16 @@ static int pty_bsd_ioctl(struct tty_struct *tty,
>>          return -ENOIOCTLCMD;
>>   }
>>
>> +static long pty_bsd_compat_ioctl(struct tty_struct *tty,
>> +                                unsigned int cmd, unsigned long arg)
>> +{
>> +       /*
>> +        * PTY ioctls don't require any special translation between 32-bit and
>> +        * 64-bit userspace, they are already compatible.
>> +        */
>> +       return pty_bsd_ioctl(tty, cmd, arg);
>> +}
>> +
> 
> This looks correct but unnecessary, you can simply point both
> function pointers to the same function:

They have different types, since they have different return types:

int  (*ioctl)(struct tty_struct *tty,
	    unsigned int cmd, unsigned long arg);
long (*compat_ioctl)(struct tty_struct *tty,
		     unsigned int cmd, unsigned long arg);

If you like, I can change (*ioctl) to return longs as well, and then 
change all of the call-sites (since unlocked_ioctl also returns long).

-- 
Aleksa Sarai
Software Engineer (Containers)
SUSE Linux GmbH
https://www.cyphar.com/
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From - Thu Nov 08 21:39:53 2018
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Subject: Re: [PATCH v3 1/2] tty: add compat_ioctl callbacks
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On Tue, Jun 6, 2017 at 1:05 PM, Aleksa Sarai <asarai@suse.de> wrote:
>>> diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
>>> index 65799575c666..2a6bd9ae3f8b 100644
>>> --- a/drivers/tty/pty.c
>>> +++ b/drivers/tty/pty.c
>>> @@ -481,6 +481,16 @@ static int pty_bsd_ioctl(struct tty_struct *tty,
>>>          return -ENOIOCTLCMD;
>>>   }
>>>
>>> +static long pty_bsd_compat_ioctl(struct tty_struct *tty,
>>> +                                unsigned int cmd, unsigned long arg)
>>> +{
>>> +       /*
>>> +        * PTY ioctls don't require any special translation between
>>> 32-bit and
>>> +        * 64-bit userspace, they are already compatible.
>>> +        */
>>> +       return pty_bsd_ioctl(tty, cmd, arg);
>>> +}
>>> +
>>
>>
>> This looks correct but unnecessary, you can simply point both
>> function pointers to the same function:
>
>
> They have different types, since they have different return types:
>
> int  (*ioctl)(struct tty_struct *tty,
>             unsigned int cmd, unsigned long arg);
> long (*compat_ioctl)(struct tty_struct *tty,
>                      unsigned int cmd, unsigned long arg);
>
> If you like, I can change (*ioctl) to return longs as well, and then change
> all of the call-sites (since unlocked_ioctl also returns long).

Ah, my mistake. In most other data structures that have a compat_ioctl
callback pointer, the prototypes are the same, and I had not realized
that tty_operations is an exception.

        Arnd
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From - Thu Nov 08 21:39:54 2018
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 1/2] tty: add compat_ioctl callbacks
Date: Tue, 6 Jun 2017 14:49:15 +0200
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Approved: news@gmane.org
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References: <20170603141515.9529-1-asarai@suse.de> <20170603141515.9529-2-asarai@suse.de>
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Jiri Slaby <jslaby@suse.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        linux-alpha@vger.kernel.org,
        "open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
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To: Aleksa Sarai <asarai@suse.de>
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Xref: news.gmane.org gmane.linux.ports.sh.devel:55382 gmane.linux.kernel:2493032 gmane.linux.ports.alpha:4234 gmane.linux.ports.mips.general:59436 gmane.linux.ports.parisc:27467 gmane.linux.ports.ppc64.devel:142924 gmane.linux.ports.sparc:25351 gmane.linux.kernel.cross-arch:37008
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On Sat, Jun 3, 2017 at 4:15 PM, Aleksa Sarai <asarai@suse.de> wrote:
> In order to avoid future diversions between fs/compat_ioctl.c and
> drivers/tty/pty.c, define .compat_ioctl callbacks for the relevant
> tty_operations structs. Since both pty_unix98_ioctl() and
> pty_bsd_ioctl() are compatible between 32-bit and 64-bit userspace no
> special translation is required.
>
> Signed-off-by: Aleksa Sarai <asarai@suse.de>

Looks good,

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
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From - Thu Nov 08 21:39:54 2018
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 03/16] parisc: parisc_bus_type: use dev_groups and not dev_attrs for bus_type
Date: Tue,  6 Jun 2017 21:22:08 +0200
Lines: 70
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The dev_attrs field has long been "depreciated" and is finally being
removed, so move the driver to use the "correct" dev_groups field
instead for struct bus_type.

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: <linux-parisc@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/kernel/drivers.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index fa78419100c8..d8f77358e2ba 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -575,7 +575,8 @@ static ssize_t name##_show(struct device *dev, struct device_attribute *attr, ch
 {									\
 	struct parisc_device *padev = to_parisc_device(dev);		\
 	return sprintf(buf, format_string, padev->field);		\
-}
+}									\
+static DEVICE_ATTR_RO(name);
 
 #define pa_dev_attr_id(field, format) pa_dev_attr(field, id.field, format)
 
@@ -589,22 +590,24 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 {
 	return make_modalias(dev, buf);
 }
+static DEVICE_ATTR_RO(modalias);
 
-static struct device_attribute parisc_device_attrs[] = {
-	__ATTR_RO(irq),
-	__ATTR_RO(hw_type),
-	__ATTR_RO(rev),
-	__ATTR_RO(hversion),
-	__ATTR_RO(sversion),
-	__ATTR_RO(modalias),
-	__ATTR_NULL,
+static struct attribute *parisc_device_attrs[] = {
+	&dev_attr_irq.attr,
+	&dev_attr_hw_type.attr,
+	&dev_attr_rev.attr,
+	&dev_attr_hversion.attr,
+	&dev_attr_sversion.attr,
+	&dev_attr_modalias.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(parisc_device);
 
 struct bus_type parisc_bus_type = {
 	.name = "parisc",
 	.match = parisc_generic_match,
 	.uevent = parisc_uevent,
-	.dev_attrs = parisc_device_attrs,
+	.dev_groups = parisc_device_groups,
 	.probe = parisc_driver_probe,
 	.remove = parisc_driver_remove,
 };
-- 
2.13.0

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From - Thu Nov 08 21:39:54 2018
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From: Krzysztof Kozlowski <krzk@kernel.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 09/35] parisc: defconfig: Cleanup from old Kconfig options
Date: Thu,  8 Jun 2017 18:10:20 +0200
Lines: 240
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Cc: Arnd Bergmann <arnd@arndb.de>,
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        Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org
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Remove old, dead Kconfig options (in order appearing in this commit):
 - EXPERIMENTAL is gone since v3.9;
 - INET_LRO: commit 7bbf3cae65b6 ("ipv4: Remove inet_lro library");
 - IP_NF_QUEUE: commit 3dd6664fac7e ("netfilter: remove unused "config
   IP_NF_QUEUE"");
 - VIDEO_OUTPUT_CONTROL: commit f167a64e9d67 ("video / output: Drop
   display output class support");
 - RCU_CPU_STALL_DETECTOR: commit a00e0d714fbd ("rcu: Remove conditional
   compilation for RCU CPU stall warnings");
 - IP_NF_TARGET_ULOG: commit d4da843e6fad ("netfilter: kill remnants of
   ulog targets");
 - IP6_NF_TARGET_LOG: commit 6939c33a757b ("netfilter: merge ipt_LOG and
   ip6_LOG into xt_LOG");
 - AUTOFS_FS: commit 561c5cf9236a ("staging: Remove autofs3");

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
 arch/parisc/configs/712_defconfig           | 5 -----
 arch/parisc/configs/a500_defconfig          | 6 ------
 arch/parisc/configs/b180_defconfig          | 3 ---
 arch/parisc/configs/c3000_defconfig         | 5 -----
 arch/parisc/configs/default_defconfig       | 5 -----
 arch/parisc/configs/generic-32bit_defconfig | 2 --
 6 files changed, 26 deletions(-)

diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig
index 143d02652792..493e03c2a219 100644
--- a/arch/parisc/configs/712_defconfig
+++ b/arch/parisc/configs/712_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -32,11 +31,9 @@ CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=m
 # CONFIG_IPV6 is not set
 CONFIG_NETFILTER=y
-CONFIG_IP_NF_QUEUE=m
 CONFIG_LLC2=m
 CONFIG_NET_PKTGEN=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -94,7 +91,6 @@ CONFIG_PPDEV=m
 # CONFIG_HW_RANDOM is not set
 CONFIG_RAW_DRIVER=y
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_TILEBLITTING=y
@@ -181,7 +177,6 @@ CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_FS=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_HMAC=y
diff --git a/arch/parisc/configs/a500_defconfig b/arch/parisc/configs/a500_defconfig
index 1a4f776b49b8..8d67e2373920 100644
--- a/arch/parisc/configs/a500_defconfig
+++ b/arch/parisc/configs/a500_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -43,21 +42,18 @@ CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET6_AH=m
 CONFIG_INET6_ESP=m
 CONFIG_INET6_IPCOMP=m
 CONFIG_IPV6_TUNNEL=m
 CONFIG_NETFILTER=y
 # CONFIG_NETFILTER_XT_MATCH_DCCP is not set
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_ECN=m
 CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
 CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_IP_NF_MANGLE=m
 CONFIG_IP_NF_TARGET_ECN=m
 CONFIG_IP_NF_RAW=m
@@ -70,7 +66,6 @@ CONFIG_IP6_NF_MATCH_OPTS=m
 CONFIG_IP6_NF_MATCH_HL=m
 CONFIG_IP6_NF_MATCH_IPV6HEADER=m
 CONFIG_IP6_NF_MATCH_RT=m
-CONFIG_IP6_NF_TARGET_LOG=m
 CONFIG_IP6_NF_FILTER=m
 CONFIG_IP6_NF_TARGET_REJECT=m
 CONFIG_IP6_NF_MANGLE=m
@@ -192,7 +187,6 @@ CONFIG_DEBUG_FS=y
 CONFIG_HEADERS_CHECK=y
 CONFIG_DEBUG_KERNEL=y
 # CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_HMAC=y
diff --git a/arch/parisc/configs/b180_defconfig b/arch/parisc/configs/b180_defconfig
index f1a0c25bef8d..0eca8208591c 100644
--- a/arch/parisc/configs/b180_defconfig
+++ b/arch/parisc/configs/b180_defconfig
@@ -25,7 +25,6 @@ CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_PNP=y
 CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
 CONFIG_IPV6=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
@@ -71,7 +70,6 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
 CONFIG_PRINTER=y
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
@@ -105,6 +103,5 @@ CONFIG_NLS_UTF8=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_HEADERS_CHECK=y
 CONFIG_DEBUG_KERNEL=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_SECURITY=y
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index 8e8f0e34f817..8337f5adf414 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_IKCONFIG=y
@@ -31,13 +30,11 @@ CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_PNP=y
 CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 CONFIG_INET6_IPCOMP=m
 CONFIG_IPV6_TUNNEL=m
 CONFIG_NETFILTER=y
 CONFIG_NETFILTER_DEBUG=y
-CONFIG_IP_NF_QUEUE=m
 CONFIG_NET_PKTGEN=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
@@ -111,7 +108,6 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
 # CONFIG_HW_RANDOM is not set
 CONFIG_RAW_DRIVER=y
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
@@ -165,7 +161,6 @@ CONFIG_HEADERS_CHECK=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
 # CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_MD5=m
diff --git a/arch/parisc/configs/default_defconfig b/arch/parisc/configs/default_defconfig
index 310b6657e4ac..e28e3acbdff3 100644
--- a/arch/parisc/configs/default_defconfig
+++ b/arch/parisc/configs/default_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -41,7 +40,6 @@ CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=m
 CONFIG_IPV6=y
 CONFIG_INET6_AH=y
@@ -114,7 +112,6 @@ CONFIG_PRINTER=m
 CONFIG_PPDEV=m
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_TILEBLITTING=y
@@ -151,7 +148,6 @@ CONFIG_USB_UHCI_HCD=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_FS_XATTR is not set
-CONFIG_AUTOFS_FS=y
 CONFIG_ISO9660_FS=y
 CONFIG_JOLIET=y
 CONFIG_VFAT_FS=y
@@ -209,7 +205,6 @@ CONFIG_DEBUG_FS=y
 CONFIG_HEADERS_CHECK=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_KEYS=y
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig
index 8688ba7f5966..80aa10a9016e 100644
--- a/arch/parisc/configs/generic-32bit_defconfig
+++ b/arch/parisc/configs/generic-32bit_defconfig
@@ -49,7 +49,6 @@ CONFIG_INET_ESP=m
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=m
 CONFIG_LLC2=m
 # CONFIG_WIRELESS is not set
@@ -152,7 +151,6 @@ CONFIG_I2C=y
 CONFIG_POWER_SUPPLY=y
 # CONFIG_HWMON is not set
 CONFIG_AGP=y
-CONFIG_VIDEO_OUTPUT_CONTROL=y
 CONFIG_FB=y
 CONFIG_FB_FOREIGN_ENDIAN=y
 CONFIG_FB_MODE_HELPERS=y
-- 
2.9.3



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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Avoid zeroing register 0 in fixup_exception()
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Register gr[0] holds the PSW in interrupt context. It's absolutely
unlikely that the compiler will use register zero in a get_user() call,
but better BUG on such a case in fixup_exception() anyway.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 32ec221..e683b7f 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -163,6 +163,7 @@ int fixup_exception(struct pt_regs *regs)
 			/* zero target register for get_user() */
 			if (parisc_acctyp(0, regs->iir) == VM_READ) {
 				int treg = regs->iir & 0x1f;
+				BUG_ON(treg == 0);
 				regs->gr[treg] = 0;
 			}
 		}
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Don't hardcode value of PSW_SM_D in gsc_*() functions
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 1a16f1d..af98254 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -34,10 +34,10 @@ static inline unsigned char gsc_readb(unsigned long addr)
 	unsigned char ret;
 
 	__asm__ __volatile__(
-	"	rsm	2,%0\n"
+	"	rsm	%3,%0\n"
 	"	ldbx	0(%2),%1\n"
 	"	mtsm	%0\n"
-	: "=&r" (flags), "=r" (ret) : "r" (addr) );
+	: "=&r" (flags), "=r" (ret) : "r" (addr), "i" (PSW_SM_D) );
 
 	return ret;
 }
@@ -48,10 +48,10 @@ static inline unsigned short gsc_readw(unsigned long addr)
 	unsigned short ret;
 
 	__asm__ __volatile__(
-	"	rsm	2,%0\n"
+	"	rsm	%3,%0\n"
 	"	ldhx	0(%2),%1\n"
 	"	mtsm	%0\n"
-	: "=&r" (flags), "=r" (ret) : "r" (addr) );
+	: "=&r" (flags), "=r" (ret) : "r" (addr), "i" (PSW_SM_D) );
 
 	return ret;
 }
@@ -87,20 +87,20 @@ static inline void gsc_writeb(unsigned char val, unsigned long addr)
 {
 	long flags;
 	__asm__ __volatile__(
-	"	rsm	2,%0\n"
+	"	rsm	%3,%0\n"
 	"	stbs	%1,0(%2)\n"
 	"	mtsm	%0\n"
-	: "=&r" (flags) :  "r" (val), "r" (addr) );
+	: "=&r" (flags) :  "r" (val), "r" (addr), "i" (PSW_SM_D) );
 }
 
 static inline void gsc_writew(unsigned short val, unsigned long addr)
 {
 	long flags;
 	__asm__ __volatile__(
-	"	rsm	2,%0\n"
+	"	rsm	%3,%0\n"
 	"	sths	%1,0(%2)\n"
 	"	mtsm	%0\n"
-	: "=&r" (flags) :  "r" (val), "r" (addr) );
+	: "=&r" (flags) :  "r" (val), "r" (addr), "i" (PSW_SM_D) );
 }
 
 static inline void gsc_writel(unsigned int val, unsigned long addr)
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Don't hardcode PSW values in hpmc code
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index 0fbd0a0..e3a8e5e 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -44,6 +44,7 @@
 
 #include <asm/assembly.h>
 #include <asm/pdc.h>
+#include <asm/psw.h>
 
 #include <linux/linkage.h>
 #include <linux/init.h>
@@ -135,7 +136,7 @@ ENTRY_CFI(os_hpmc)
 	 * So turn on the Q bit and turn off the M bit.
 	 */
 
-	ldo     8(%r0),%r4                       /* PSW Q on, PSW M off */
+	ldi     PSW_SM_Q,%r4                   /* PSW Q on, PSW M off */
 	mtctl   %r4,ipsw
 	mtctl   %r0,pcsq
 	mtctl   %r0,pcsq
@@ -257,7 +258,7 @@ os_hpmc_5:
 
 	tovirt_r1 %r30      /* make sp virtual */
 
-	rsm 8,%r0           /* Clear Q bit */
+	rsm     PSW_SM_Q,%r0           /* Clear Q bit */
 	ldi     1,%r8       /* Set trap code to "1" for HPMC */
 	load32	PA(intr_save),%r1
 	be      0(%sr7,%r1)
--
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From - Thu Nov 08 21:39:54 2018
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Subject: [PATCH 0/2] Define CPU_BIG_ENDIAN or warn for inconsistencies
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Found this problem while enabling queued rwlock on SPARC.
The parameter CONFIG_CPU_BIG_ENDIAN is used to clear the
specific byte in qrwlock structure. Without this parameter,
we clear the wrong byte. Here is the code.

static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
  {
         return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
  }

Here is the previous discussion.
http://www.spinics.net/lists/devicetree/msg178101.html

Based on the discussion, it was decided to add CONFIG_CPU_BIG_ENDIAN
for all the fixed big endian architecture(frv, h8300, m68k, openrisc,
parisc and sparc). And warn if there are inconsistencies in this definition.

Babu Moger (2):
  arch: Define CPU_BIG_ENDIAN for all fixed big endian archs
  include: warn for inconsistent endian config definition

 arch/frv/Kconfig                        |    3 +++
 arch/h8300/Kconfig                      |    3 +++
 arch/m68k/Kconfig                       |    3 +++
 arch/openrisc/Kconfig                   |    3 +++
 arch/parisc/Kconfig                     |    3 +++
 arch/sparc/Kconfig                      |    3 +++
 include/linux/byteorder/big_endian.h    |    4 ++++
 include/linux/byteorder/little_endian.h |    4 ++++
 8 files changed, 26 insertions(+), 0 deletions(-)


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Display warning if CPU_BIG_ENDIAN is not defined on big endian
architecture and also warn if it defined on little endian architectures.

We have seen some generic code(for example code include/asm-generic/qrwlock.h)
uses CONFIG_CPU_BIG_ENDIAN to decide the endianess.

Here is the original discussion
http://www.spinics.net/lists/devicetree/msg178101.html

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
---
 include/linux/byteorder/big_endian.h    |    4 ++++
 include/linux/byteorder/little_endian.h |    4 ++++
 2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/include/linux/byteorder/big_endian.h b/include/linux/byteorder/big_endian.h
index 3920414..ffd2159 100644
--- a/include/linux/byteorder/big_endian.h
+++ b/include/linux/byteorder/big_endian.h
@@ -3,5 +3,9 @@
 
 #include <uapi/linux/byteorder/big_endian.h>
 
+#ifndef CONFIG_CPU_BIG_ENDIAN
+#warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
+#endif
+
 #include <linux/byteorder/generic.h>
 #endif /* _LINUX_BYTEORDER_BIG_ENDIAN_H */
diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h
index 0805737..ba910bb 100644
--- a/include/linux/byteorder/little_endian.h
+++ b/include/linux/byteorder/little_endian.h
@@ -3,5 +3,9 @@
 
 #include <uapi/linux/byteorder/little_endian.h>
 
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#warning inconsistent configuration, CONFIG_CPU_BIG_ENDIAN is set
+#endif
+
 #include <linux/byteorder/generic.h>
 #endif /* _LINUX_BYTEORDER_LITTLE_ENDIAN_H */
-- 
1.7.1



From - Thu Nov 08 21:39:54 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH 1/2] arch: Define CPU_BIG_ENDIAN for all fixed big endian archs
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While working on enabling queued rwlock on SPARC, found
this following code in include/asm-generic/qrwlock.h
which uses CONFIG_CPU_BIG_ENDIAN to clear a byte.

static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
 {
	return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
 }

Problem is many of the fixed big endian architectures dont define
CPU_BIG_ENDIAN and clears the wrong byte.

Define CPU_BIG_ENDIAN for all the fixed big endian architecture.

Here is the orinal discussion
http://www.spinics.net/lists/devicetree/msg178101.html

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/frv/Kconfig      |    3 +++
 arch/h8300/Kconfig    |    3 +++
 arch/m68k/Kconfig     |    3 +++
 arch/openrisc/Kconfig |    3 +++
 arch/parisc/Kconfig   |    3 +++
 arch/sparc/Kconfig    |    3 +++
 6 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index eefd9a4..1cce824 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -17,6 +17,9 @@ config FRV
 	select HAVE_DEBUG_STACKOVERFLOW
 	select ARCH_NO_COHERENT_DMA_MMAP
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config ZONE_DMA
 	bool
 	default y
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 3ae8525..5380ac8 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -23,6 +23,9 @@ config H8300
 	select HAVE_ARCH_HASH
 	select CPU_NO_EFFICIENT_FFS
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index d140206..029a58b 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -23,6 +23,9 @@ config M68K
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 1e95920..a0f2e4a 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -29,6 +29,9 @@ config OPENRISC
 	select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1
 	select NO_BOOTMEM
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config MMU
 	def_bool y
 
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 531da9e..dda1f55 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -47,6 +47,9 @@ config PARISC
 	  and later HP3000 series).  The PA-RISC Linux project home page is
 	  at <http://www.parisc-linux.org/>.
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config MMU
 	def_bool y
 
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 58243b0..eb213b5 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -92,6 +92,9 @@ config ARCH_DEFCONFIG
 config ARCH_PROC_KCORE_TEXT
 	def_bool y
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config ARCH_ATU
 	bool
 	default y if SPARC64
-- 
1.7.1



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Cc: Yoshinori Sato <ysato@users.sourceforge.jp>,
        Jonas Bonn <jonas@southpole.se>,
        Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
        Stafford Horne <shorne@gmail.com>,
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        Al Viro <viro@zeniv.linux.org.uk>,
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        Peter Zijlstra <peterz@infradead.org>,
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To: Babu Moger <babu.moger@oracle.com>
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On Fri, Jun 9, 2017 at 12:17 AM, Babu Moger <babu.moger@oracle.com> wrote:
> While working on enabling queued rwlock on SPARC, found
> this following code in include/asm-generic/qrwlock.h
> which uses CONFIG_CPU_BIG_ENDIAN to clear a byte.
>
> static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
>  {
>         return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
>  }
>
> Problem is many of the fixed big endian architectures dont define
> CPU_BIG_ENDIAN and clears the wrong byte.
>
> Define CPU_BIG_ENDIAN for all the fixed big endian architecture.
>
> Here is the orinal discussion
> http://www.spinics.net/lists/devicetree/msg178101.html
>
> Signed-off-by: Babu Moger <babu.moger@oracle.com>
> Suggested-by: Arnd Bergmann <arnd@arndb.de>

Hmm, the link above refers to a mail from me? ;-)

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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To: Babu Moger <babu.moger@oracle.com>
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On Fri, Jun 9, 2017 at 12:17 AM, Babu Moger <babu.moger@oracle.com> wrote:
> Display warning if CPU_BIG_ENDIAN is not defined on big endian
> architecture and also warn if it defined on little endian architectures.
>
> We have seen some generic code(for example code include/asm-generic/qrwlock.h)
> uses CONFIG_CPU_BIG_ENDIAN to decide the endianess.

That example is IMHO the least harmful, as qrwlock must be selected explicitly
by the architecture.

The uses in

    drivers/of/base.c
    drivers/of/fdt.c
    drivers/tty/serial/earlycon.c
    drivers/tty/serial/serial_core.c

are more dangerous, and may have bitten people already.
In addition, people may have worked around them in DT, so this series may
actually introduce regressions.

> Here is the original discussion
> http://www.spinics.net/lists/devicetree/msg178101.html
>
> Signed-off-by: Babu Moger <babu.moger@oracle.com>
> Suggested-by: Arnd Bergmann <arnd@arndb.de>

Hmm, the link above refers to a mail from me? ;-)

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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To: Babu Moger <babu.moger@oracle.com>
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Hi Babu,

On Fri, Jun 9, 2017 at 9:05 AM, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
>> Here is the original discussion
>> http://www.spinics.net/lists/devicetree/msg178101.html
>>
>> Signed-off-by: Babu Moger <babu.moger@oracle.com>
>> Suggested-by: Arnd Bergmann <arnd@arndb.de>
>
> Hmm, the link above refers to a mail from me? ;-)

Please ignore that comment. I accidentally copied one line too much
from the other reply.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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This is a note to let you know that I've just added the patch titled

    parisc: parisc_bus_type: use dev_groups and not dev_attrs for

to my driver-core git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git
in the driver-core-testing branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will be merged to the driver-core-next branch sometime soon,
after it passes testing, and the merge window is open.

If you have any questions about this process, please let me know.


>From 9b7c6682270043415921ee73e584bdc4ee289fdf Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 6 Jun 2017 14:16:38 +0200
Subject: parisc: parisc_bus_type: use dev_groups and not dev_attrs for
 bus_type

The dev_attrs field has long been "depreciated" and is finally being
removed, so move the driver to use the "correct" dev_groups field
instead for struct bus_type.

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: <linux-parisc@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/kernel/drivers.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index fa78419100c8..d8f77358e2ba 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -575,7 +575,8 @@ static ssize_t name##_show(struct device *dev, struct device_attribute *attr, ch
 {									\
 	struct parisc_device *padev = to_parisc_device(dev);		\
 	return sprintf(buf, format_string, padev->field);		\
-}
+}									\
+static DEVICE_ATTR_RO(name);
 
 #define pa_dev_attr_id(field, format) pa_dev_attr(field, id.field, format)
 
@@ -589,22 +590,24 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 {
 	return make_modalias(dev, buf);
 }
+static DEVICE_ATTR_RO(modalias);
 
-static struct device_attribute parisc_device_attrs[] = {
-	__ATTR_RO(irq),
-	__ATTR_RO(hw_type),
-	__ATTR_RO(rev),
-	__ATTR_RO(hversion),
-	__ATTR_RO(sversion),
-	__ATTR_RO(modalias),
-	__ATTR_NULL,
+static struct attribute *parisc_device_attrs[] = {
+	&dev_attr_irq.attr,
+	&dev_attr_hw_type.attr,
+	&dev_attr_rev.attr,
+	&dev_attr_hversion.attr,
+	&dev_attr_sversion.attr,
+	&dev_attr_modalias.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(parisc_device);
 
 struct bus_type parisc_bus_type = {
 	.name = "parisc",
 	.match = parisc_generic_match,
 	.uevent = parisc_uevent,
-	.dev_attrs = parisc_device_attrs,
+	.dev_groups = parisc_device_groups,
 	.probe = parisc_driver_probe,
 	.remove = parisc_driver_remove,
 };
-- 
2.13.1


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From - Thu Nov 08 21:39:55 2018
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 2/2] tty: add TIOCGPTPEER ioctl
Date: Fri, 9 Jun 2017 11:26:59 +0200
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Approved: news@gmane.org
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To: Aleksa Sarai <asarai@suse.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/25460>

On Sun, Jun 04, 2017 at 12:15:15AM +1000, Aleksa Sarai wrote:
> When opening the slave end of a PTY, it is not possible for userspace to
> safely ensure that /dev/pts/$num is actually a slave (in cases where the
> mount namespace in which devpts was mounted is controlled by an
> untrusted process). In addition, there are several unresolvable
> race conditions if userspace were to attempt to detect attacks through
> stat(2) and other similar methods [in addition it is not clear how
> userspace could detect attacks involving FUSE].
> 
> Resolve this by providing an interface for userpace to safely open the
> "peer" end of a PTY file descriptor by using the dentry cached by
> devpts. Since it is not possible to have an open master PTY without
> having its slave exposed in /dev/pts this interface is safe. This
> interface currently does not provide a way to get the master pty (since
> it is not clear whether such an interface is safe or even useful).
> 
> Cc: Christian Brauner <christian.brauner@ubuntu.com>
> Cc: Valentin Rothberg <vrothberg@suse.com>
> Signed-off-by: Aleksa Sarai <asarai@suse.de>

Is this going to be documented anywhere?  Is there a man page update
that also goes along with this?  What userspace program wants to use
this?

I'm not objecting to this, I just want to know that people will use
this, and that they can find out information about it if they want to.

thanks,

greg k-h
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From - Thu Nov 08 21:39:55 2018
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Subject: Re: [PATCH v4 2/2] tty: add TIOCGPTPEER ioctl
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>> When opening the slave end of a PTY, it is not possible for userspace to
>> safely ensure that /dev/pts/$num is actually a slave (in cases where the
>> mount namespace in which devpts was mounted is controlled by an
>> untrusted process). In addition, there are several unresolvable
>> race conditions if userspace were to attempt to detect attacks through
>> stat(2) and other similar methods [in addition it is not clear how
>> userspace could detect attacks involving FUSE].
>>
>> Resolve this by providing an interface for userpace to safely open the
>> "peer" end of a PTY file descriptor by using the dentry cached by
>> devpts. Since it is not possible to have an open master PTY without
>> having its slave exposed in /dev/pts this interface is safe. This
>> interface currently does not provide a way to get the master pty (since
>> it is not clear whether such an interface is safe or even useful).
>>
>> Cc: Christian Brauner <christian.brauner@ubuntu.com>
>> Cc: Valentin Rothberg <vrothberg@suse.com>
>> Signed-off-by: Aleksa Sarai <asarai@suse.de>
> 
> Is this going to be documented anywhere?  Is there a man page update
> that also goes along with this?

I will add one, I didn't know where the man-pages project is hosted / 
where patches get pushed? What is the ML?

> What userspace program wants to use this?

LXC (Christian is on Cc) will use this, runC will most likely use it, 
pending on some design discussions (as well as some future container 
runtimes I'm planning on working on). Effectively any container runtime 
that wants to safely create terminals and spawn containers inside an 
existing container's namespaces will likely want to use this.

[ As an aside, I /would/ argue this is a security fix (it fixes an 
interface problem that made doing certain operations securely possible) 
but I didn't want to Cc stable@ because it's a feature and not a strict 
bugfix. ]

-- 
Aleksa Sarai
Software Engineer (Containers)
SUSE Linux GmbH
https://www.cyphar.com/


From - Thu Nov 08 21:39:55 2018
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Subject: Re: [PATCH v4 2/2] tty: add TIOCGPTPEER ioctl
Date: Fri, 9 Jun 2017 12:04:42 +0200
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On Fri, Jun 09, 2017 at 07:50:43PM +1000, Aleksa Sarai wrote:
> > > When opening the slave end of a PTY, it is not possible for userspace to
> > > safely ensure that /dev/pts/$num is actually a slave (in cases where the
> > > mount namespace in which devpts was mounted is controlled by an
> > > untrusted process). In addition, there are several unresolvable
> > > race conditions if userspace were to attempt to detect attacks through
> > > stat(2) and other similar methods [in addition it is not clear how
> > > userspace could detect attacks involving FUSE].
> > > 
> > > Resolve this by providing an interface for userpace to safely open the
> > > "peer" end of a PTY file descriptor by using the dentry cached by
> > > devpts. Since it is not possible to have an open master PTY without
> > > having its slave exposed in /dev/pts this interface is safe. This
> > > interface currently does not provide a way to get the master pty (since
> > > it is not clear whether such an interface is safe or even useful).
> > > 
> > > Cc: Christian Brauner <christian.brauner@ubuntu.com>
> > > Cc: Valentin Rothberg <vrothberg@suse.com>
> > > Signed-off-by: Aleksa Sarai <asarai@suse.de>
> > 
> > Is this going to be documented anywhere?  Is there a man page update
> > that also goes along with this?
> 
> I will add one, I didn't know where the man-pages project is hosted / where
> patches get pushed? What is the ML?

>From the MAINTAINERS file:
  MAN-PAGES: MANUAL PAGES FOR LINUX -- Sections 2, 3, 4, 5, and 7
  M:      Michael Kerrisk <mtk.manpages@gmail.com>
  W:      http://www.kernel.org/doc/man-pages
  L:      linux-man@vger.kernel.org
  S:      Maintained

> > What userspace program wants to use this?
> 
> LXC (Christian is on Cc) will use this, runC will most likely use it,
> pending on some design discussions (as well as some future container
> runtimes I'm planning on working on). Effectively any container runtime that
> wants to safely create terminals and spawn containers inside an existing
> container's namespaces will likely want to use this.
> 
> [ As an aside, I /would/ argue this is a security fix (it fixes an interface
> problem that made doing certain operations securely possible) but I didn't
> want to Cc stable@ because it's a feature and not a strict bugfix. ]

Yeah, it's a new feature, so stable doesn't really fit here.  And as
people who use containers are all keeping up to date with their kernel
versions, this shouldn't be that big of a deal, not like the Android
kernel mess :)

thanks,

greg k-h
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Subject: Re: [PATCH v4 2/2] tty: add TIOCGPTPEER ioctl
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>>>> When opening the slave end of a PTY, it is not possible for userspace to
>>>> safely ensure that /dev/pts/$num is actually a slave (in cases where the
>>>> mount namespace in which devpts was mounted is controlled by an
>>>> untrusted process). In addition, there are several unresolvable
>>>> race conditions if userspace were to attempt to detect attacks through
>>>> stat(2) and other similar methods [in addition it is not clear how
>>>> userspace could detect attacks involving FUSE].
>>>>
>>>> Resolve this by providing an interface for userpace to safely open the
>>>> "peer" end of a PTY file descriptor by using the dentry cached by
>>>> devpts. Since it is not possible to have an open master PTY without
>>>> having its slave exposed in /dev/pts this interface is safe. This
>>>> interface currently does not provide a way to get the master pty (since
>>>> it is not clear whether such an interface is safe or even useful).
>>>>
>>>> Cc: Christian Brauner <christian.brauner@ubuntu.com>
>>>> Cc: Valentin Rothberg <vrothberg@suse.com>
>>>> Signed-off-by: Aleksa Sarai <asarai@suse.de>
>>>
>>> Is this going to be documented anywhere?  Is there a man page update
>>> that also goes along with this?
>>
>> I will add one, I didn't know where the man-pages project is hosted / where
>> patches get pushed? What is the ML?
> 
>  From the MAINTAINERS file:
>    MAN-PAGES: MANUAL PAGES FOR LINUX -- Sections 2, 3, 4, 5, and 7
>    M:      Michael Kerrisk <mtk.manpages@gmail.com>
>    W:      http://www.kernel.org/doc/man-pages
>    L:      linux-man@vger.kernel.org
>    S:      Maintained

Ah, should've looked there first!

Thanks Greg, I'll send it over the weekend.

-- 
Aleksa Sarai
Software Engineer (Containers)
SUSE Linux GmbH
https://www.cyphar.com/
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Subject: Re: [PATCH 2/2] include: warn for inconsistent endian config
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Cc: Yoshinori Sato <ysato@users.sourceforge.jp>,
        Jonas Bonn <jonas@southpole.se>,
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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Geert,

On 6/9/2017 2:16 AM, Geert Uytterhoeven wrote:
> Hi Babu,
>
> On Fri, Jun 9, 2017 at 9:05 AM, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>>> Here is the original discussion
>>> http://www.spinics.net/lists/devicetree/msg178101.html
>>>
>>> Signed-off-by: Babu Moger <babu.moger@oracle.com>
>>> Suggested-by: Arnd Bergmann <arnd@arndb.de>
>> Hmm, the link above refers to a mail from me? ;-)
> Please ignore that comment. I accidentally copied one line too much
> from the other reply.

Yes. Got it.  So patch #1 is fine.   But, patch #2 might cause 
regressions. Should I drop patch 2.

>
> Gr{oetje,eeting}s,
>
>                          Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                  -- Linus Torvalds



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Hi Babu,

On Fri, Jun 9, 2017 at 3:55 PM, Babu Moger <babu.moger@oracle.com> wrote:
> On 6/9/2017 2:16 AM, Geert Uytterhoeven wrote:
>> On Fri, Jun 9, 2017 at 9:05 AM, Geert Uytterhoeven <geert@linux-m68k.org>
>> wrote:
>>>> Here is the original discussion
>>>> http://www.spinics.net/lists/devicetree/msg178101.html
>>>>
>>>> Signed-off-by: Babu Moger <babu.moger@oracle.com>
>>>> Suggested-by: Arnd Bergmann <arnd@arndb.de>

> Yes. Got it.  So patch #1 is fine.   But, patch #2 might cause regressions.
> Should I drop patch 2.

No, it should be applied, and regressions should be fixed.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On 6/9/2017 9:11 AM, Geert Uytterhoeven wrote:
> Hi Babu,
>
> On Fri, Jun 9, 2017 at 3:55 PM, Babu Moger <babu.moger@oracle.com> wrote:
>> On 6/9/2017 2:16 AM, Geert Uytterhoeven wrote:
>>> On Fri, Jun 9, 2017 at 9:05 AM, Geert Uytterhoeven <geert@linux-m68k.org>
>>> wrote:
>>>>> Here is the original discussion
>>>>> http://www.spinics.net/lists/devicetree/msg178101.html
>>>>>
>>>>> Signed-off-by: Babu Moger <babu.moger@oracle.com>
>>>>> Suggested-by: Arnd Bergmann <arnd@arndb.de>
>> Yes. Got it.  So patch #1 is fine.   But, patch #2 might cause regressions.
>> Should I drop patch 2.
> No, it should be applied, and regressions should be fixed.

Geert,  Ok. Sure. I will resubmit the patch mentioning all the 
files(base.c, fdt.c etc..) that are affected by this change.
thanks
> Gr{oetje,eeting}s,
>
>                          Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                  -- Linus Torvalds


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To: Geert Uytterhoeven <geert@linux-m68k.org>,
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On 6/9/2017 2:03 AM, Geert Uytterhoeven wrote:
> On Fri, Jun 9, 2017 at 12:17 AM, Babu Moger <babu.moger@oracle.com> wrote:
>> While working on enabling queued rwlock on SPARC, found
>> this following code in include/asm-generic/qrwlock.h
>> which uses CONFIG_CPU_BIG_ENDIAN to clear a byte.
>>
>> static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
>>   {
>>          return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
>>   }
>>
>> Problem is many of the fixed big endian architectures dont define
>> CPU_BIG_ENDIAN and clears the wrong byte.
>>
>> Define CPU_BIG_ENDIAN for all the fixed big endian architecture.
>>
>> Here is the orinal discussion
>> http://www.spinics.net/lists/devicetree/msg178101.html
>>
>> Signed-off-by: Babu Moger <babu.moger@oracle.com>
>> Suggested-by: Arnd Bergmann <arnd@arndb.de>
> Hmm, the link above refers to a mail from me? ;-)
>
> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

One more question before I resubmit.

Dave,
I have added CONFIG_CPU_BIG_ENDIAN for sparc via my earlier patch.
https://patchwork.ozlabs.org/patch/766735/
Should I exclude sparc here?
Thanks
Babu

>
> Gr{oetje,eeting}s,
>
>                          Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                  -- Linus Torvalds


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To: babu.moger@oracle.com
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From: Babu Moger <babu.moger@oracle.com>
Date: Thu,  8 Jun 2017 15:17:22 -0700

> While working on enabling queued rwlock on SPARC, found
> this following code in include/asm-generic/qrwlock.h
> which uses CONFIG_CPU_BIG_ENDIAN to clear a byte.
> 
> static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
>  {
> 	return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
>  }
> 
> Problem is many of the fixed big endian architectures dont define
> CPU_BIG_ENDIAN and clears the wrong byte.
> 
> Define CPU_BIG_ENDIAN for all the fixed big endian architecture.
> 
> Here is the orinal discussion
> http://www.spinics.net/lists/devicetree/msg178101.html
> 
> Signed-off-by: Babu Moger <babu.moger@oracle.com>
> Suggested-by: Arnd Bergmann <arnd@arndb.de>

Acked-by: David S. Miller <davem@davemloft.net>

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From: <gregkh@linuxfoundation.org>
Newsgroups: gmane.linux.ports.parisc
Subject: patch "parisc: parisc_bus_type: use dev_groups and not dev_attrs for" added to driver-core-next
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This is a note to let you know that I've just added the patch titled

    parisc: parisc_bus_type: use dev_groups and not dev_attrs for

to my driver-core git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git
in the driver-core-next branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will also be merged in the next major kernel release
during the merge window.

If you have any questions about this process, please let me know.


>From 9b7c6682270043415921ee73e584bdc4ee289fdf Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 6 Jun 2017 14:16:38 +0200
Subject: parisc: parisc_bus_type: use dev_groups and not dev_attrs for
 bus_type

The dev_attrs field has long been "depreciated" and is finally being
removed, so move the driver to use the "correct" dev_groups field
instead for struct bus_type.

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: <linux-parisc@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/kernel/drivers.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index fa78419100c8..d8f77358e2ba 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -575,7 +575,8 @@ static ssize_t name##_show(struct device *dev, struct device_attribute *attr, ch
 {									\
 	struct parisc_device *padev = to_parisc_device(dev);		\
 	return sprintf(buf, format_string, padev->field);		\
-}
+}									\
+static DEVICE_ATTR_RO(name);
 
 #define pa_dev_attr_id(field, format) pa_dev_attr(field, id.field, format)
 
@@ -589,22 +590,24 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 {
 	return make_modalias(dev, buf);
 }
+static DEVICE_ATTR_RO(modalias);
 
-static struct device_attribute parisc_device_attrs[] = {
-	__ATTR_RO(irq),
-	__ATTR_RO(hw_type),
-	__ATTR_RO(rev),
-	__ATTR_RO(hversion),
-	__ATTR_RO(sversion),
-	__ATTR_RO(modalias),
-	__ATTR_NULL,
+static struct attribute *parisc_device_attrs[] = {
+	&dev_attr_irq.attr,
+	&dev_attr_hw_type.attr,
+	&dev_attr_rev.attr,
+	&dev_attr_hversion.attr,
+	&dev_attr_sversion.attr,
+	&dev_attr_modalias.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(parisc_device);
 
 struct bus_type parisc_bus_type = {
 	.name = "parisc",
 	.match = parisc_generic_match,
 	.uevent = parisc_uevent,
-	.dev_attrs = parisc_device_attrs,
+	.dev_groups = parisc_device_groups,
 	.probe = parisc_driver_probe,
 	.remove = parisc_driver_remove,
 };
-- 
2.13.1


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[adding parisc list]
On Fri, 2017-06-09 at 13:13 +0200, Peter Zijlstra wrote:
> On Fri, Jun 09, 2017 at 01:05:06PM +0200, Peter Zijlstra wrote:
> 
> > The spinlock based atomics should be SC, that is, none of them
> > appear to
> > place extra barriers in atomic_cmpxchg() or any of the other SC
> > atomic
> > primitives and therefore seem to rely on their spinlock
> > implementation
> > being SC (I did not fully validate all that).
> 
> So I did see that ARC and PARISC have 'superfluous' smp_mb() calls
> around their spinlock implementation.
> 
> That is, for spinlock semantics you only need one _after_ lock and 
> one _before_ unlock. But the atomic stuff relies on being SC and thus
> would need one before and after both lock and unlock.

Actually, for us that's not true.  You are correct in the above for
safety but not for performance: If we remove the safety unnecessary
barriers, it can elongate our critical sections (the spinlock can move
up in the code stream and the spin unlock can move down) which leads to
performance regressions because we end up holding locks longer than we
need (we also have a lot of hot locks).

> Now, afaict PARISC doesn't even have memory barriers (it uses
> asm-generic/barrier.h) so that's a bit of a puzzle.

We disable relaxed ordering on our architecture which means the CPU
issue stream must match the instruction stream.  We've debated turning
on relaxed ordering, but decided it was more hassle than it's worth.

James


> But ARC could probably optimize (if they still care about that 
> hardware) by pulling out those barriers and putting it in the atomic
> implementation.
> 

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From - Thu Nov 08 21:39:55 2018
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From: Babu Moger <babu.moger@oracle.com>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.parisc
Subject: [PATCH v2 0/2] Define CPU_BIG_ENDIAN or warn for inconsistencies
Date: Fri,  9 Jun 2017 12:48:05 -0700
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Found this problem while enabling queued rwlock on SPARC.
The parameter CONFIG_CPU_BIG_ENDIAN is used to clear the
specific byte in qrwlock structure. Without this parameter,
we clear the wrong byte.
Here is the code in include/asm-generic/qrwlock.h

static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
  {
         return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
  }

Also found few more references of this parameter in
drivers/of/base.c
drivers/of/fdt.c
drivers/tty/serial/earlycon.c
drivers/tty/serial/serial_core.c

Here is our previous discussion.
https://lkml.org/lkml/2017/5/24/620

Based on the discussion, it was decided to add CONFIG_CPU_BIG_ENDIAN
for all the fixed big endian architecture(frv, h8300, m68k, openrisc,
parisc and sparc). And warn if there are inconsistencies in this definition.

v1 -> v2:
 Updated the commit messages and acks.

Babu Moger (2):
  arch: Define CPU_BIG_ENDIAN for all fixed big endian archs
  include: warn for inconsistent endian config definition

 arch/frv/Kconfig                        |    3 +++
 arch/h8300/Kconfig                      |    3 +++
 arch/m68k/Kconfig                       |    3 +++
 arch/openrisc/Kconfig                   |    3 +++
 arch/parisc/Kconfig                     |    3 +++
 arch/sparc/Kconfig                      |    3 +++
 include/linux/byteorder/big_endian.h    |    4 ++++
 include/linux/byteorder/little_endian.h |    4 ++++
 8 files changed, 26 insertions(+), 0 deletions(-)

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From - Thu Nov 08 21:39:55 2018
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From: Babu Moger <babu.moger@oracle.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v2 1/2] arch: Define CPU_BIG_ENDIAN for all fixed big endian archs
Date: Fri,  9 Jun 2017 12:48:06 -0700
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While working on enabling queued rwlock on SPARC, found
this following code in include/asm-generic/qrwlock.h
which uses CONFIG_CPU_BIG_ENDIAN to clear a byte.

static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
 {
	return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
 }

Problem is many of the fixed big endian architectures don't define
CPU_BIG_ENDIAN and clears the wrong byte.

Define CPU_BIG_ENDIAN for all the fixed big endian architecture to fix it.

Also found few more references of this config parameter in
drivers/of/base.c
drivers/of/fdt.c
drivers/tty/serial/earlycon.c
drivers/tty/serial/serial_core.c
Be aware that this may cause regressions if someone has worked-around
problems in the above code already. Remove the work-around.

Here is our original discussion
https://lkml.org/lkml/2017/5/24/620

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: David S. Miller <davem@davemloft.net>
---
 arch/frv/Kconfig      |    3 +++
 arch/h8300/Kconfig    |    3 +++
 arch/m68k/Kconfig     |    3 +++
 arch/openrisc/Kconfig |    3 +++
 arch/parisc/Kconfig   |    3 +++
 arch/sparc/Kconfig    |    3 +++
 6 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index eefd9a4..1cce824 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -17,6 +17,9 @@ config FRV
 	select HAVE_DEBUG_STACKOVERFLOW
 	select ARCH_NO_COHERENT_DMA_MMAP
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config ZONE_DMA
 	bool
 	default y
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 3ae8525..5380ac8 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -23,6 +23,9 @@ config H8300
 	select HAVE_ARCH_HASH
 	select CPU_NO_EFFICIENT_FFS
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index d140206..029a58b 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -23,6 +23,9 @@ config M68K
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 1e95920..a0f2e4a 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -29,6 +29,9 @@ config OPENRISC
 	select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1
 	select NO_BOOTMEM
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config MMU
 	def_bool y
 
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 531da9e..dda1f55 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -47,6 +47,9 @@ config PARISC
 	  and later HP3000 series).  The PA-RISC Linux project home page is
 	  at <http://www.parisc-linux.org/>.
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config MMU
 	def_bool y
 
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 58243b0..eb213b5 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -92,6 +92,9 @@ config ARCH_DEFCONFIG
 config ARCH_PROC_KCORE_TEXT
 	def_bool y
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config ARCH_ATU
 	bool
 	default y if SPARC64
-- 
1.7.1


From - Thu Nov 08 21:39:56 2018
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We have seen some generic code use config parameter CONFIG_CPU_BIG_ENDIAN
to decide the endianness.

Here are the few examples.
include/asm-generic/qrwlock.h
drivers/of/base.c
drivers/of/fdt.c
drivers/tty/serial/earlycon.c
drivers/tty/serial/serial_core.c

Display warning if CPU_BIG_ENDIAN is not defined on big endian
architecture and also warn if it defined on little endian architectures.

Here is our original discussion
https://lkml.org/lkml/2017/5/24/620

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 include/linux/byteorder/big_endian.h    |    4 ++++
 include/linux/byteorder/little_endian.h |    4 ++++
 2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/include/linux/byteorder/big_endian.h b/include/linux/byteorder/big_endian.h
index 3920414..ffd2159 100644
--- a/include/linux/byteorder/big_endian.h
+++ b/include/linux/byteorder/big_endian.h
@@ -3,5 +3,9 @@
 
 #include <uapi/linux/byteorder/big_endian.h>
 
+#ifndef CONFIG_CPU_BIG_ENDIAN
+#warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
+#endif
+
 #include <linux/byteorder/generic.h>
 #endif /* _LINUX_BYTEORDER_BIG_ENDIAN_H */
diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h
index 0805737..ba910bb 100644
--- a/include/linux/byteorder/little_endian.h
+++ b/include/linux/byteorder/little_endian.h
@@ -3,5 +3,9 @@
 
 #include <uapi/linux/byteorder/little_endian.h>
 
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#warning inconsistent configuration, CONFIG_CPU_BIG_ENDIAN is set
+#endif
+
 #include <linux/byteorder/generic.h>
 #endif /* _LINUX_BYTEORDER_LITTLE_ENDIAN_H */
-- 
1.7.1



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Cc: "open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
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 Tony Lindgren <tony@atomide.com>,
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 Liviu Dudau <liviu.dudau@arm.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/2511>

On Thu, Jun 8, 2017 at 6:08 PM, Krzysztof Kozlowski <krzk@kernel.org> wrote:
> Hi,
>
> While cleaning Samsung ARM defconfigs with savedefconfig, I encountered
> similar obsolete entries in other files.
>
> Except the ARM, no dependencies.
> For ARM, the rest of patches depend on the first change (otherwise
> it might not apply cleanly).

Great work!

I looked at all the ARM patches, and everything looks good to me (the
changlog linewrapping may be suboptimal for readability in some cases,
if I had to say anything negative ;-) ).

Please add my Acked-by to the ARM patches and send a pull request.

        Arnd

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Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: Re: [PATCH v2 1/2] arch: Define CPU_BIG_ENDIAN for all fixed big
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Date: Sat, 10 Jun 2017 17:22:22 +0900
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On Fri, Jun 09, 2017 at 12:48:06PM -0700, Babu Moger wrote:
> While working on enabling queued rwlock on SPARC, found
> this following code in include/asm-generic/qrwlock.h
> which uses CONFIG_CPU_BIG_ENDIAN to clear a byte.
> 
> static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
>  {
> 	return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
>  }
> 
> Problem is many of the fixed big endian architectures don't define
> CPU_BIG_ENDIAN and clears the wrong byte.
> 
> Define CPU_BIG_ENDIAN for all the fixed big endian architecture to fix it.
> 
> Also found few more references of this config parameter in
> drivers/of/base.c
> drivers/of/fdt.c
> drivers/tty/serial/earlycon.c
> drivers/tty/serial/serial_core.c
> Be aware that this may cause regressions if someone has worked-around
> problems in the above code already. Remove the work-around.
> 
> Here is our original discussion
> https://lkml.org/lkml/2017/5/24/620
> 
> Signed-off-by: Babu Moger <babu.moger@oracle.com>
> Suggested-by: Arnd Bergmann <arnd@arndb.de>
> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Acked-by: David S. Miller <davem@davemloft.net>
> ---
>  arch/frv/Kconfig      |    3 +++
>  arch/h8300/Kconfig    |    3 +++
>  arch/m68k/Kconfig     |    3 +++
>  arch/openrisc/Kconfig |    3 +++
>  arch/parisc/Kconfig   |    3 +++
>  arch/sparc/Kconfig    |    3 +++
>  6 files changed, 18 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
> index eefd9a4..1cce824 100644
> --- a/arch/frv/Kconfig
> +++ b/arch/frv/Kconfig
> @@ -17,6 +17,9 @@ config FRV
>  	select HAVE_DEBUG_STACKOVERFLOW
>  	select ARCH_NO_COHERENT_DMA_MMAP
>  
> +config CPU_BIG_ENDIAN
> +	def_bool y
> +
>  config ZONE_DMA
>  	bool
>  	default y
> diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
> index 3ae8525..5380ac8 100644
> --- a/arch/h8300/Kconfig
> +++ b/arch/h8300/Kconfig
> @@ -23,6 +23,9 @@ config H8300
>  	select HAVE_ARCH_HASH
>  	select CPU_NO_EFFICIENT_FFS
>  
> +config CPU_BIG_ENDIAN
> +	def_bool y
> +
>  config RWSEM_GENERIC_SPINLOCK
>  	def_bool y
>  
> diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
> index d140206..029a58b 100644
> --- a/arch/m68k/Kconfig
> +++ b/arch/m68k/Kconfig
> @@ -23,6 +23,9 @@ config M68K
>  	select OLD_SIGSUSPEND3
>  	select OLD_SIGACTION
>  
> +config CPU_BIG_ENDIAN
> +	def_bool y
> +
>  config RWSEM_GENERIC_SPINLOCK
>  	bool
>  	default y
> diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
> index 1e95920..a0f2e4a 100644
> --- a/arch/openrisc/Kconfig
> +++ b/arch/openrisc/Kconfig
> @@ -29,6 +29,9 @@ config OPENRISC
>  	select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1
>  	select NO_BOOTMEM
>  
> +config CPU_BIG_ENDIAN
> +	def_bool y
> +

Acked-by: Stafford Horne <shorne@gmail.com>

I actually have this patch in my SMP branch [0] I am working on.  It would
be good to get this in, I have heard verious complaints about bugs with
endianness and mmio with OpenRISC but have not been able to look into it.
This might be related as well.

[0] https://github.com/stffrdhrn/linux/commit/2cc4b90eca865c54b87b8f59e523c131f30fc9ac

>  config MMU
>  	def_bool y
>  
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index 531da9e..dda1f55 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -47,6 +47,9 @@ config PARISC
>  	  and later HP3000 series).  The PA-RISC Linux project home page is
>  	  at <http://www.parisc-linux.org/>.
>  
> +config CPU_BIG_ENDIAN
> +	def_bool y
> +
>  config MMU
>  	def_bool y
>  
> diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
> index 58243b0..eb213b5 100644
> --- a/arch/sparc/Kconfig
> +++ b/arch/sparc/Kconfig
> @@ -92,6 +92,9 @@ config ARCH_DEFCONFIG
>  config ARCH_PROC_KCORE_TEXT
>  	def_bool y
>  
> +config CPU_BIG_ENDIAN
> +	def_bool y
> +
>  config ARCH_ATU
>  	bool
>  	default y if SPARC64
> -- 
> 1.7.1
> 

From - Thu Nov 08 21:39:56 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.sparc
Subject: Re: [PATCH 2/2] include: warn for inconsistent endian config
 definition
Date: Sat, 10 Jun 2017 22:06:20 +0800
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Approved: news@gmane.org
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Hi Babu,

[auto build test WARNING on linus/master]
[also build test WARNING on v4.12-rc4 next-20170609]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Babu-Moger/Define-CPU_BIG_ENDIAN-or-warn-for-inconsistencies/20170610-200424
config: microblaze-mmu_defconfig (attached as .config)
compiler: microblaze-linux-gcc (GCC) 6.2.0
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=microblaze 

All warnings (new ones prefixed by >>):

   In file included from arch/microblaze/include/uapi/asm/byteorder.h:7:0,
                    from include/asm-generic/bitops/le.h:5,
                    from include/asm-generic/bitops.h:34,
                    from arch/microblaze/include/asm/bitops.h:1,
                    from include/linux/bitops.h:36,
                    from include/linux/kernel.h:10,
                    from include/asm-generic/bug.h:15,
                    from arch/microblaze/include/asm/bug.h:1,
                    from include/linux/bug.h:4,
                    from include/linux/page-flags.h:9,
                    from kernel/bounds.c:9:
>> include/linux/byteorder/big_endian.h:7:2: warning: #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN [-Wcpp]
    #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
     ^~~~~~~
--
   In file included from arch/microblaze/include/uapi/asm/byteorder.h:7:0,
                    from include/asm-generic/bitops/le.h:5,
                    from include/asm-generic/bitops.h:34,
                    from arch/microblaze/include/asm/bitops.h:1,
                    from include/linux/bitops.h:36,
                    from include/linux/kernel.h:10,
                    from include/asm-generic/bug.h:15,
                    from arch/microblaze/include/asm/bug.h:1,
                    from include/linux/bug.h:4,
                    from include/linux/page-flags.h:9,
                    from kernel/bounds.c:9:
>> include/linux/byteorder/big_endian.h:7:2: warning: #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN [-Wcpp]
    #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
     ^~~~~~~
   In file included from arch/microblaze/include/uapi/asm/byteorder.h:7:0,
                    from include/asm-generic/bitops/le.h:5,
                    from include/asm-generic/bitops.h:34,
                    from arch/microblaze/include/asm/bitops.h:1,
                    from include/linux/bitops.h:36,
                    from include/linux/kernel.h:10,
                    from include/linux/list.h:8,
                    from include/linux/rculist.h:9,
                    from include/linux/pid.h:4,
                    from include/linux/sched.h:13,
                    from arch/microblaze/kernel/asm-offsets.c:13:
>> include/linux/byteorder/big_endian.h:7:2: warning: #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN [-Wcpp]
    #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
     ^~~~~~~
   <stdin>:1326:2: warning: #warning syscall statx not implemented [-Wcpp]

vim +7 include/linux/byteorder/big_endian.h

     1	#ifndef _LINUX_BYTEORDER_BIG_ENDIAN_H
     2	#define _LINUX_BYTEORDER_BIG_ENDIAN_H
     3	
     4	#include <uapi/linux/byteorder/big_endian.h>
     5	
     6	#ifndef CONFIG_CPU_BIG_ENDIAN
   > 7	#warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
     8	#endif
     9	
    10	#include <linux/byteorder/generic.h>
    11	#endif /* _LINUX_BYTEORDER_BIG_ENDIAN_H */

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From - Thu Nov 08 21:39:56 2018
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From: Krzysztof Kozlowski <krzk@kernel.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.kernel.samsung-soc,gmane.linux.uml.devel,gmane.linux.ports.alpha,gmane.linux.uml.user,gmane.linux.ports.arm.omap,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCH 00/35] defconfig: Cleanup from old entries
Date: Sat, 10 Jun 2017 18:43:51 +0200
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Cc: "open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
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To: Arnd Bergmann <arnd@arndb.de>
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On Fri, Jun 09, 2017 at 09:59:48PM +0200, Arnd Bergmann wrote:
> On Thu, Jun 8, 2017 at 6:08 PM, Krzysztof Kozlowski <krzk@kernel.org> wrote:
> > Hi,
> >
> > While cleaning Samsung ARM defconfigs with savedefconfig, I encountered
> > similar obsolete entries in other files.
> >
> > Except the ARM, no dependencies.
> > For ARM, the rest of patches depend on the first change (otherwise
> > it might not apply cleanly).
> 
> Great work!
> 
> I looked at all the ARM patches, and everything looks good to me (the
> changlog linewrapping may be suboptimal for readability in some cases,
> if I had to say anything negative ;-) ).
> 
> Please add my Acked-by to the ARM patches and send a pull request.

Thanks, I'll send you ARM part in pull request.

As for the rest, I think respective arch/platform maintainers should
take it.

Best regards,
Krzysztof

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From: Masahiro Yamada <yamada.masahiro@socionext.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kbuild.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: [PATCH 19/27] parisc: move generic-y of exported headers to uapi/asm/Kbuild
Date: Mon, 12 Jun 2017 12:27:13 +0900
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Since commit fcc8487d477a ("uapi: export all headers under uapi
directories"), all (and only) headers under uapi directories are
exported, but asm-generic wrappers are still exceptions.

scripts/Makefile.headersinst still need to deal with old-kbuild-file
for headers listed in arch/*/include/asm/Kbuild, but actually exported.

As the last work to finish de-coupling the uapi from kernel headers,
move generic-y of exported headers to uapi/asm/Kbuild.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

 arch/parisc/include/asm/Kbuild      | 5 -----
 arch/parisc/include/uapi/asm/Kbuild | 4 ++++
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index a9909c2d04c5..e26348d52ecc 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -1,5 +1,3 @@
-
-generic-y += auxvec.h
 generic-y += barrier.h
 generic-y += clkdev.h
 generic-y += current.h
@@ -11,14 +9,11 @@ generic-y += hw_irq.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
-generic-y += kvm_para.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += param.h
 generic-y += percpu.h
-generic-y += poll.h
 generic-y += preempt.h
 generic-y += seccomp.h
 generic-y += segment.h
diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
index 3971c60a7e7f..196d2a4efb31 100644
--- a/arch/parisc/include/uapi/asm/Kbuild
+++ b/arch/parisc/include/uapi/asm/Kbuild
@@ -1,4 +1,8 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += auxvec.h
+generic-y += kvm_para.h
+generic-y += param.h
+generic-y += poll.h
 generic-y += resource.h
-- 
2.7.4



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From: Masahiro Yamada <yamada.masahiro@socionext.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kbuild.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 00/27] kbuild, arch: complete UAPI de-coupling and cleanup
 scripts/Makefile.headersinst
Date: Mon, 12 Jun 2017 12:26:54 +0900
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Cc: Rich Felker <dalias@libc.org>, linux-ia64@vger.kernel.org,
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In v4.12-rc1, we had a big progress for headers_install.
All (and only) headers under UAPI directories are exported.
However, asm-generic wrappers are still exceptions because
most of arch/*/include/asm/Kbuild include "generic-y" for
exported headers.  As a result, many of generic-wrappers to be
exported are generated outside UAPI directories.

To finish de-coupling UAPI, "generic-y" for exported headers
should be moved to arch/*/include/uapi/asm/Kbuild.

With those cleanups, the logic of headers_install will become
even simpler.  UAPI will be completely self-contained.

This series is based on v4.12-rc2 tag.

This series touches Kbuild files under arch/.  We have two options
to merge this series.

[1] I will collect Acked-by from arch maintainers, then apply the
    whole series to the Kbuild tree.

[2] I will ask arch maintainers to pick up arch changes (for v4.13),
    then apply Makefile changes to the Kbuild tree (for v4.14).

[1] will finish this work by v4.13, but need to deal with some conflicts.
[2] will allow us to reduce conflicts (still a bit conflicts),
    but take more time to finish this work.

If arch maintainers ack [1], I can manage conflicts
before sending a pull request to Linus.



Masahiro Yamada (27):
  kbuild: remove useless $(gen) variable in Makefile.headersinst
  kbuild: fix comment about dst of headers_{install,check}_all
  kbuild: pass dst= to Makefile.headersinst from top Makefile
  arm64: move generic-y of exported headers to uapi/asm/Kbuild
  ARM: move generic-y of exported headers to uapi/asm/Kbuild
  arc: move generic-y of exported headers to uapi/asm/Kbuild
  blackfin: move generic-y of exported headers to uapi/asm/Kbuild
  c6x: move generic-y of exported headers to uapi/asm/Kbuild
  cris: move generic-y of exported headers to uapi/asm/Kbuild
  h8300: move generic-y of exported headers to uapi/asm/Kbuild
  hexagon: move generic-y of exported headers to uapi/asm/Kbuild
  ia64: move generic-y of exported headers to uapi/asm/Kbuild
  m32r: move generic-y of exported headers to uapi/asm/Kbuild
  m68k: move generic-y of exported headers to uapi/asm/Kbuild
  metag: move generic-y of exported headers to uapi/asm/Kbuild
  nios2: remove unneeded arch/nios2/include/(generated/)asm/signal.h
  nios2: move generic-y of exported headers to uapi/asm/Kbuild
  openrisc: move generic-y of exported headers to uapi/asm/Kbuild
  parisc: move generic-y of exported headers to uapi/asm/Kbuild
  sh: move generic-y of exported headers to uapi/asm/Kbuild
  sparc: move generic-y of exported headers to uapi/asm/Kbuild
  tile: move generic-y of exported headers to uapi/asm/Kbuild
  unicore32: move generic-y of exported headers to uapi/asm/Kbuild
  xtensa: move generic-y of exported headers to uapi/asm/Kbuild
  kbuild: do not include old-kbuild-file from Makefile.headersinst
  kbuild: split exported generic header creation into uapi-asm-generic
  kbuild: remove wrapper files handling from Makefile.headersinst

 Makefile                               | 13 +++++++------
 arch/arc/include/asm/Kbuild            | 25 -------------------------
 arch/arc/include/uapi/asm/Kbuild       | 26 ++++++++++++++++++++++++++
 arch/arm/include/asm/Kbuild            | 17 -----------------
 arch/arm/include/uapi/asm/Kbuild       | 16 ++++++++++++++++
 arch/arm64/include/asm/Kbuild          | 17 -----------------
 arch/arm64/include/uapi/asm/Kbuild     | 16 ++++++++++++++++
 arch/blackfin/include/asm/Kbuild       | 22 ----------------------
 arch/blackfin/include/uapi/asm/Kbuild  | 22 ++++++++++++++++++++++
 arch/c6x/include/asm/Kbuild            | 27 ---------------------------
 arch/c6x/include/uapi/asm/Kbuild       | 26 ++++++++++++++++++++++++++
 arch/cris/include/asm/Kbuild           | 18 ------------------
 arch/cris/include/uapi/asm/Kbuild      | 19 +++++++++++++++++++
 arch/h8300/include/asm/Kbuild          | 27 ---------------------------
 arch/h8300/include/uapi/asm/Kbuild     | 28 ++++++++++++++++++++++++++++
 arch/hexagon/include/asm/Kbuild        | 23 -----------------------
 arch/hexagon/include/uapi/asm/Kbuild   | 24 ++++++++++++++++++++++++
 arch/ia64/include/asm/Kbuild           |  2 --
 arch/m32r/include/asm/Kbuild           |  2 --
 arch/m32r/include/uapi/asm/Kbuild      |  2 ++
 arch/m68k/include/asm/Kbuild           | 12 ------------
 arch/m68k/include/uapi/asm/Kbuild      | 11 +++++++++++
 arch/metag/include/asm/Kbuild          | 24 ------------------------
 arch/metag/include/uapi/asm/Kbuild     | 24 ++++++++++++++++++++++++
 arch/nios2/include/asm/Kbuild          | 25 -------------------------
 arch/nios2/include/asm/signal.h        | 22 ----------------------
 arch/nios2/include/uapi/asm/Kbuild     | 24 ++++++++++++++++++++++++
 arch/openrisc/include/asm/Kbuild       | 28 ----------------------------
 arch/openrisc/include/uapi/asm/Kbuild  | 29 +++++++++++++++++++++++++++++
 arch/parisc/include/asm/Kbuild         |  5 -----
 arch/parisc/include/uapi/asm/Kbuild    |  4 ++++
 arch/sh/include/asm/Kbuild             | 20 --------------------
 arch/sh/include/uapi/asm/Kbuild        | 20 ++++++++++++++++++++
 arch/sparc/include/asm/Kbuild          |  1 -
 arch/sparc/include/uapi/asm/Kbuild     |  2 ++
 arch/tile/include/asm/Kbuild           | 19 -------------------
 arch/tile/include/uapi/asm/Kbuild      | 19 +++++++++++++++++++
 arch/unicore32/include/asm/Kbuild      | 31 +------------------------------
 arch/unicore32/include/uapi/asm/Kbuild | 28 ++++++++++++++++++++++++++++
 arch/xtensa/include/asm/Kbuild         |  9 ---------
 arch/xtensa/include/uapi/asm/Kbuild    | 10 ++++++++++
 scripts/Makefile.headersinst           | 28 ++++------------------------
 42 files changed, 362 insertions(+), 405 deletions(-)
 delete mode 100644 arch/nios2/include/asm/signal.h

-- 
2.7.4

From - Thu Nov 08 21:39:56 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.sh.devel,gmane.linux.kernel.samsung-soc,gmane.linux.uml.devel,gmane.linux.ports.alpha,gmane.linux.uml.user,gmane.linux.ports.arm.omap,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCH 00/35] defconfig: Cleanup from old entries
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Cc: "open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
 Rich Felker <dalias@libc.org>, Aurelien Jacquiot <a-jacquiot@ti.com>,
 Tony Lindgren <tony@atomide.com>,
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 Liviu Dudau <liviu.dudau@arm.com>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
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 Yoshinori Sato <ysato@users.sourceforge.jp>,
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To: Krzysztof Kozlowski <krzk@kernel.org>
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On Sat, Jun 10, 2017 at 6:43 PM, Krzysztof Kozlowski <krzk@kernel.org> wrote:
> On Fri, Jun 09, 2017 at 09:59:48PM +0200, Arnd Bergmann wrote:
>> On Thu, Jun 8, 2017 at 6:08 PM, Krzysztof Kozlowski <krzk@kernel.org> wrote:
>> > Hi,
>> >
>> > While cleaning Samsung ARM defconfigs with savedefconfig, I encountered
>> > similar obsolete entries in other files.
>> >
>> > Except the ARM, no dependencies.
>> > For ARM, the rest of patches depend on the first change (otherwise
>> > it might not apply cleanly).
>>
>> Great work!
>>
>> I looked at all the ARM patches, and everything looks good to me (the
>> changlog linewrapping may be suboptimal for readability in some cases,
>> if I had to say anything negative ;-) ).
>>
>> Please add my Acked-by to the ARM patches and send a pull request.
>
> Thanks, I'll send you ARM part in pull request.

Ok

> As for the rest, I think respective arch/platform maintainers should
> take it.

I suspect most will apply the patches, but some architectures maintainers
are not very active. If you are motivated, you could resend the ones
that missed out to Andrew Morton, or you just leave the architectures
to bitrot more. ;-)

     Arnd

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Hi All,

On 6/10/2017 9:06 AM, kbuild test robot wrote:
> Hi Babu,
>
> [auto build test WARNING on linus/master]
> [also build test WARNING on v4.12-rc4 next-20170609]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>
> url:    https://github.com/0day-ci/linux/commits/Babu-Moger/Define-CPU_BIG_ENDIAN-or-warn-for-inconsistencies/20170610-200424
> config: microblaze-mmu_defconfig (attached as .config)
> compiler: microblaze-linux-gcc (GCC) 6.2.0
> reproduce:
>          wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>          chmod +x ~/bin/make.cross
>          # save the attached .config to linux build tree
>          make.cross ARCH=microblaze
>
> All warnings (new ones prefixed by >>):
>
>     In file included from arch/microblaze/include/uapi/asm/byteorder.h:7:0,
>                      from include/asm-generic/bitops/le.h:5,
>                      from include/asm-generic/bitops.h:34,
>                      from arch/microblaze/include/asm/bitops.h:1,
>                      from include/linux/bitops.h:36,
>                      from include/linux/kernel.h:10,
>                      from include/asm-generic/bug.h:15,
>                      from arch/microblaze/include/asm/bug.h:1,
>                      from include/linux/bug.h:4,
>                      from include/linux/page-flags.h:9,
>                      from kernel/bounds.c:9:
>>> include/linux/byteorder/big_endian.h:7:2: warning: #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN [-Wcpp]
>      #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
>       ^~~~~~~
> --
>     In file included from arch/microblaze/include/uapi/asm/byteorder.h:7:0,
>                      from include/asm-generic/bitops/le.h:5,
>                      from include/asm-generic/bitops.h:34,
>                      from arch/microblaze/include/asm/bitops.h:1,
>                      from include/linux/bitops.h:36,
>                      from include/linux/kernel.h:10,
>                      from include/asm-generic/bug.h:15,
>                      from arch/microblaze/include/asm/bug.h:1,
>                      from include/linux/bug.h:4,
>                      from include/linux/page-flags.h:9,
>                      from kernel/bounds.c:9:
>>> include/linux/byteorder/big_endian.h:7:2: warning: #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN [-Wcpp]
>      #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
>       ^~~~~~~
>     In file included from arch/microblaze/include/uapi/asm/byteorder.h:7:0,
>                      from include/asm-generic/bitops/le.h:5,
>                      from include/asm-generic/bitops.h:34,
>                      from arch/microblaze/include/asm/bitops.h:1,
>                      from include/linux/bitops.h:36,
>                      from include/linux/kernel.h:10,
>                      from include/linux/list.h:8,
>                      from include/linux/rculist.h:9,
>                      from include/linux/pid.h:4,
>                      from include/linux/sched.h:13,
>                      from arch/microblaze/kernel/asm-offsets.c:13:
>>> include/linux/byteorder/big_endian.h:7:2: warning: #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN [-Wcpp]
>      #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
>       ^~~~~~~
>     <stdin>:1326:2: warning: #warning syscall statx not implemented [-Wcpp]
>
> vim +7 include/linux/byteorder/big_endian.h
>
>       1	#ifndef _LINUX_BYTEORDER_BIG_ENDIAN_H
>       2	#define _LINUX_BYTEORDER_BIG_ENDIAN_H
>       3	
>       4	#include <uapi/linux/byteorder/big_endian.h>
>       5	
>       6	#ifndef CONFIG_CPU_BIG_ENDIAN
>     > 7	#warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
>       8	#endif
>       9	
>      10	#include <linux/byteorder/generic.h>
>      11	#endif /* _LINUX_BYTEORDER_BIG_ENDIAN_H */
>
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Looks like microblaze can be configured to either little or big endian 
formats.  How about
adding a choice statement to address this.
Here is my proposed patch.
=======================================
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 85885a5..74aa5de 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -35,6 +35,22 @@ config MICROBLAZE
         select VIRT_TO_BUS
         select CPU_NO_EFFICIENT_FFS

+# Endianness selection
+choice
+       prompt "Endianness selection"
+       default CPU_BIG_ENDIAN
+       help
+         microblaze architectures can be configured for either little or
+         big endian formats. Be sure to select the appropriate mode.
+
+config CPU_BIG_ENDIAN
+       bool "Big endian"
+
+config CPU_LITTLE_ENDIAN
+       bool "Little endian"
+
+endchoice
+
  config SWAP
         def_bool n



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From - Thu Nov 08 21:39:56 2018
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Subject: Re: [PATCH 2/2] include: warn for inconsistent endian config definition
Date: Mon, 12 Jun 2017 22:51:23 +0200
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Cc: kbuild test robot <lkp@intel.com>, kbuild-all@01.org,
        Yoshinori Sato <ysato@users.sourceforge.jp>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Jonas Bonn <jonas@southpole.se>,
        Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
        Stafford Horne <shorne@gmail.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        David Miller <davem@davemloft.net>,
        Al Viro <viro@zeniv.linux.org.uk>,
        Michael Ellerman <mpe@ellerman.id.au>,
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        <uclinux-h8-devel@lists.sourceforge.jp>,
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To: Babu Moger <babu.moger@oracle.com>
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On Mon, Jun 12, 2017 at 10:30 PM, Babu Moger <babu.moger@oracle.com> wrote:
>
> Looks like microblaze can be configured to either little or big endian
> formats.  How about
> adding a choice statement to address this.
> Here is my proposed patch.

Hi Babu,

This part looks fine, but I think we also need this one:

diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
index 740f2b82a182..1f6c486826a0 100644
--- a/arch/microblaze/Makefile
+++ b/arch/microblaze/Makefile
@@ -35,6 +35,8 @@ endif
 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
+CPUFLAGS-$(CONFIG_BIG_ENDIAN) += -mbig-endian
+CPUFLAGS-$(CONFIG_LITTLE_ENDIAN) += -mlittle-endian

 CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))


That way, we don't have to guess what the toolchain does, but rather
tell it to do whatever is configured, like we do for most other architectures.

Unfortunately we can't do the same thing on xtensa, as that no longer
supports the -mbig-endian/-mbig-endian flags in any recent gcc version
(a long time ago it had them, but they were removed along with many other
options).

        Arnd
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From - Thu Nov 08 21:39:56 2018
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Subject: Re: [PATCH 2/2] include: warn for inconsistent endian config definition
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Cc: Babu Moger <babu.moger@oracle.com>,
        kbuild test robot <lkp@intel.com>, kbuild-all@01.org,
        Yoshinori Sato <ysato@users.sourceforge.jp>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
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To: Arnd Bergmann <arnd@arndb.de>
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On Mon, Jun 12, 2017 at 1:51 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> That way, we don't have to guess what the toolchain does, but rather
> tell it to do whatever is configured, like we do for most other architectures.
>
> Unfortunately we can't do the same thing on xtensa, as that no longer
> supports the -mbig-endian/-mbig-endian flags in any recent gcc version
> (a long time ago it had them, but they were removed along with many other
> options).

For xtensa we probably need to generate Kconfig fragment that would go
in with the variant subdirectory. That will solve this, and clean up other
options that we currently have for manual selection for xtensa, but there's
actually no choice, i.e. the option has to be selected correctly, there's only
one correct choice and otherwise the kernel either won't build or won't work.
I'll look into it.

-- 
Thanks.
-- Max
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From - Thu Nov 08 21:39:56 2018
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From: Babu Moger <babu.moger@oracle.com>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.parisc
Subject: Re: [PATCH 2/2] include: warn for inconsistent endian config
 definition
Date: Mon, 12 Jun 2017 16:24:54 -0500
Organization: Oracle Corporation
Lines: 43
Approved: news@gmane.org
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        Yoshinori Sato <ysato@users.sourceforge.jp>,
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To: Arnd Bergmann <arnd@arndb.de>
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On 6/12/2017 3:51 PM, Arnd Bergmann wrote:
> On Mon, Jun 12, 2017 at 10:30 PM, Babu Moger <babu.moger@oracle.com> wrote:
>> Looks like microblaze can be configured to either little or big endian
>> formats.  How about
>> adding a choice statement to address this.
>> Here is my proposed patch.
> Hi Babu,
>
> This part looks fine, but I think we also need this one:
>
> diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
> index 740f2b82a182..1f6c486826a0 100644
> --- a/arch/microblaze/Makefile
> +++ b/arch/microblaze/Makefile
> @@ -35,6 +35,8 @@ endif
>   CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
>   CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
>   CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
> +CPUFLAGS-$(CONFIG_BIG_ENDIAN) += -mbig-endian
> +CPUFLAGS-$(CONFIG_LITTLE_ENDIAN) += -mlittle-endian
>
>   CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
>
>
> That way, we don't have to guess what the toolchain does, but rather
> tell it to do whatever is configured, like we do for most other architectures.

Ok. Thanks. Arnd. Will update and resend the series.

>
> Unfortunately we can't do the same thing on xtensa, as that no longer
> supports the -mbig-endian/-mbig-endian flags in any recent gcc version
> (a long time ago it had them, but they were removed along with many other
> options).
>
>          Arnd

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On 6/12/2017 3:58 PM, Max Filippov wrote:
> On Mon, Jun 12, 2017 at 1:51 PM, Arnd Bergmann <arnd@arndb.de> wrote:
>> That way, we don't have to guess what the toolchain does, but rather
>> tell it to do whatever is configured, like we do for most other architectures.
>>
>> Unfortunately we can't do the same thing on xtensa, as that no longer
>> supports the -mbig-endian/-mbig-endian flags in any recent gcc version
>> (a long time ago it had them, but they were removed along with many other
>> options).
> For xtensa we probably need to generate Kconfig fragment that would go
> in with the variant subdirectory. That will solve this, and clean up other
> options that we currently have for manual selection for xtensa, but there's
> actually no choice, i.e. the option has to be selected correctly, there's only
> one correct choice and otherwise the kernel either won't build or won't work.
> I'll look into it.
Max. Thanks. Please update us when you are done.
>

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Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v3 0/3] Define CPU_BIG_ENDIAN or warn for inconsistencies
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Found this problem while enabling queued rwlock on SPARC.
The parameter CONFIG_CPU_BIG_ENDIAN is used to clear the
specific byte in qrwlock structure. Without this parameter,
we clear the wrong byte.
Here is the code in include/asm-generic/qrwlock.h

static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
  {
         return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
  }

Also found few more references of this parameter in
drivers/of/base.c
drivers/of/fdt.c
drivers/tty/serial/earlycon.c
drivers/tty/serial/serial_core.c

Here is our previous discussion.
https://lkml.org/lkml/2017/5/24/620

Based on the discussion, it was decided to add CONFIG_CPU_BIG_ENDIAN
for all the fixed big endian architecture(frv, h8300, m68k, openrisc,
parisc and sparc). And warn if there are inconsistencies in this definition.

v2 -> v3:
 Added the choice statement for endianness selection for microblaze.
 Updated the Makefile for microblaze(Suggested by Arnd Bergmann) to
 properly compile for the correct format.
 Updated acks.

v1 -> v2:
 Updated the commit messages and acks.

Babu Moger (3):
  arch: Define CPU_BIG_ENDIAN for all fixed big endian archs
  arch/microblaze: Add choice for endianness and update Makefile
  include: warn for inconsistent endian config definition

 arch/frv/Kconfig                        |    3 +++
 arch/h8300/Kconfig                      |    3 +++
 arch/m68k/Kconfig                       |    3 +++
 arch/microblaze/Kconfig                 |   16 ++++++++++++++++
 arch/microblaze/Makefile                |    2 ++
 arch/openrisc/Kconfig                   |    3 +++
 arch/parisc/Kconfig                     |    3 +++
 arch/sparc/Kconfig                      |    3 +++
 include/linux/byteorder/big_endian.h    |    4 ++++
 include/linux/byteorder/little_endian.h |    4 ++++
 10 files changed, 44 insertions(+), 0 deletions(-)


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microblaze architectures can be configured for either little or
big endian formats. Add a choice option for the user to select the
correct endian format(default to big endian).

Also update the Makefile so toolchain can compile for the format
it is configured for.

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/microblaze/Kconfig  |   16 ++++++++++++++++
 arch/microblaze/Makefile |    2 ++
 2 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 85885a5..74aa5de 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -35,6 +35,22 @@ config MICROBLAZE
 	select VIRT_TO_BUS
 	select CPU_NO_EFFICIENT_FFS
 
+# Endianness selection
+choice
+	prompt "Endianness selection"
+	default CPU_BIG_ENDIAN
+	help
+	  microblaze architectures can be configured for either little or
+	  big endian formats. Be sure to select the appropriate mode.
+
+config CPU_BIG_ENDIAN
+	bool "Big endian"
+
+config CPU_LITTLE_ENDIAN
+	bool "Little endian"
+
+endchoice
+
 config SWAP
 	def_bool n
 
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
index 740f2b8..1f6c486 100644
--- a/arch/microblaze/Makefile
+++ b/arch/microblaze/Makefile
@@ -35,6 +35,8 @@ endif
 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
+CPUFLAGS-$(CONFIG_BIG_ENDIAN) += -mbig-endian
+CPUFLAGS-$(CONFIG_LITTLE_ENDIAN) += -mlittle-endian
 
 CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
 
-- 
1.7.1



From - Thu Nov 08 21:39:57 2018
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X-Mozilla-Keys:                                                                                 
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From: Babu Moger <babu.moger@oracle.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v3 3/3] include: warn for inconsistent endian config definition
Date: Mon, 12 Jun 2017 15:10:00 -0700
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We have seen some generic code use config parameter CONFIG_CPU_BIG_ENDIAN
to decide the endianness.

Here are the few examples.
include/asm-generic/qrwlock.h
drivers/of/base.c
drivers/of/fdt.c
drivers/tty/serial/earlycon.c
drivers/tty/serial/serial_core.c

Display warning if CPU_BIG_ENDIAN is not defined on big endian
architecture and also warn if it defined on little endian architectures.

Here is our original discussion
https://lkml.org/lkml/2017/5/24/620

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 include/linux/byteorder/big_endian.h    |    4 ++++
 include/linux/byteorder/little_endian.h |    4 ++++
 2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/include/linux/byteorder/big_endian.h b/include/linux/byteorder/big_endian.h
index 3920414..ffd2159 100644
--- a/include/linux/byteorder/big_endian.h
+++ b/include/linux/byteorder/big_endian.h
@@ -3,5 +3,9 @@
 
 #include <uapi/linux/byteorder/big_endian.h>
 
+#ifndef CONFIG_CPU_BIG_ENDIAN
+#warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
+#endif
+
 #include <linux/byteorder/generic.h>
 #endif /* _LINUX_BYTEORDER_BIG_ENDIAN_H */
diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h
index 0805737..ba910bb 100644
--- a/include/linux/byteorder/little_endian.h
+++ b/include/linux/byteorder/little_endian.h
@@ -3,5 +3,9 @@
 
 #include <uapi/linux/byteorder/little_endian.h>
 
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#warning inconsistent configuration, CONFIG_CPU_BIG_ENDIAN is set
+#endif
+
 #include <linux/byteorder/generic.h>
 #endif /* _LINUX_BYTEORDER_LITTLE_ENDIAN_H */
-- 
1.7.1



From - Thu Nov 08 21:39:57 2018
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X-Mozilla-Keys:                                                                                 
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From: Babu Moger <babu.moger@oracle.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v3 1/3] arch: Define CPU_BIG_ENDIAN for all fixed big endian archs
Date: Mon, 12 Jun 2017 15:09:58 -0700
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While working on enabling queued rwlock on SPARC, found
this following code in include/asm-generic/qrwlock.h
which uses CONFIG_CPU_BIG_ENDIAN to clear a byte.

static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
 {
	return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
 }

Problem is many of the fixed big endian architectures don't define
CPU_BIG_ENDIAN and clears the wrong byte.

Define CPU_BIG_ENDIAN for all the fixed big endian architecture to fix it.

Also found few more references of this config parameter in
drivers/of/base.c
drivers/of/fdt.c
drivers/tty/serial/earlycon.c
drivers/tty/serial/serial_core.c
Be aware that this may cause regressions if someone has worked-around
problems in the above code already. Remove the work-around.

Here is our original discussion
https://lkml.org/lkml/2017/5/24/620

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Stafford Horne <shorne@gmail.com>
---
 arch/frv/Kconfig      |    3 +++
 arch/h8300/Kconfig    |    3 +++
 arch/m68k/Kconfig     |    3 +++
 arch/openrisc/Kconfig |    3 +++
 arch/parisc/Kconfig   |    3 +++
 arch/sparc/Kconfig    |    3 +++
 6 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index eefd9a4..1cce824 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -17,6 +17,9 @@ config FRV
 	select HAVE_DEBUG_STACKOVERFLOW
 	select ARCH_NO_COHERENT_DMA_MMAP
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config ZONE_DMA
 	bool
 	default y
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 3ae8525..5380ac8 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -23,6 +23,9 @@ config H8300
 	select HAVE_ARCH_HASH
 	select CPU_NO_EFFICIENT_FFS
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index d140206..029a58b 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -23,6 +23,9 @@ config M68K
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 1e95920..a0f2e4a 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -29,6 +29,9 @@ config OPENRISC
 	select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1
 	select NO_BOOTMEM
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config MMU
 	def_bool y
 
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 531da9e..dda1f55 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -47,6 +47,9 @@ config PARISC
 	  and later HP3000 series).  The PA-RISC Linux project home page is
 	  at <http://www.parisc-linux.org/>.
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config MMU
 	def_bool y
 
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 908f019..0d9dc49 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -92,6 +92,9 @@ config ARCH_DEFCONFIG
 config ARCH_PROC_KCORE_TEXT
 	def_bool y
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config ARCH_ATU
 	bool
 	default y if SPARC64
-- 
1.7.1



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From: Eric Biggers <ebiggers@google.com>

Architectures with a compat syscall table must put compat_sys_keyctl()
in it, not sys_keyctl().  The parisc architecture was not doing this;
fix it.

Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 arch/parisc/kernel/syscall_table.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 44aeaa9c039f..6308749359e4 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -361,7 +361,7 @@
 	ENTRY_SAME(ni_syscall)	/* 263: reserved for vserver */
 	ENTRY_SAME(add_key)
 	ENTRY_SAME(request_key)		/* 265 */
-	ENTRY_SAME(keyctl)
+	ENTRY_COMP(keyctl)
 	ENTRY_SAME(ioprio_set)
 	ENTRY_SAME(ioprio_get)
 	ENTRY_SAME(inotify_init)
-- 
2.13.1

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Subject: Re: [PATCH] parisc: use compat_sys_keyctl()
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On 13.06.2017 08:18, Eric Biggers wrote:
> From: Eric Biggers <ebiggers@google.com>
> 
> Architectures with a compat syscall table must put compat_sys_keyctl()
> in it, not sys_keyctl().  The parisc architecture was not doing this;
> fix it.
> 
> Signed-off-by: Eric Biggers <ebiggers@google.com>

Acked-by: Helge Deller <deller@gmx.de>

Thanks Eric!
I'll queue it up in my next arch pull request (unless someone else takes it earlier).

Helge

> ---
>  arch/parisc/kernel/syscall_table.S | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
> index 44aeaa9c039f..6308749359e4 100644
> --- a/arch/parisc/kernel/syscall_table.S
> +++ b/arch/parisc/kernel/syscall_table.S
> @@ -361,7 +361,7 @@
>  	ENTRY_SAME(ni_syscall)	/* 263: reserved for vserver */
>  	ENTRY_SAME(add_key)
>  	ENTRY_SAME(request_key)		/* 265 */
> -	ENTRY_SAME(keyctl)
> +	ENTRY_COMP(keyctl)
>  	ENTRY_SAME(ioprio_set)
>  	ENTRY_SAME(ioprio_get)
>  	ENTRY_SAME(inotify_init)
> 

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From - Thu Nov 08 21:39:57 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: 4.12-rc5+: segfault while compiling, on rp3410
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I am using gentoo on my hppa machines and just tried 
4.12.0-rc5-00187-gab2789b at the end of last week. This time there 
was new gcc release so a lot of work. rp3440 and A500 had no problems, 
rp3410 errored out with SIGSEGV, twice.

It is of course possible that the hardware has gone bad but so far it 
has always been the kernel and the machine has worked fine so far, so I 
suspect the kernel again.

Full dmesg (with crash) and config are below.

[    0.000000] Linux version 4.12.0-rc5-00187-gab2789b (mroos@rp3410) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #17 Sat Jun 17 02:04:31 EEST 2017
[    0.000000] unwind_init: start = 0x4079d32c, end = 0x407d822c, entries = 15088
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] model 00008860 00000491 00000000 00000002 3e45475d0860fe3d 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000302
[    0.000000] CPUID vers 20 rev 5 (0x00000285)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/800/rp3410  
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000004040000000 End 0x000000407fdfffff Size   1022 MB
[    0.000000] Total Memory: 2046 MB
[    0.000000] On node 0 totalpages: 262144
[    0.000000] free_area_init_node: node 0, pgdat 408064b0, node_mem_map 40bf000000
[    0.000000]   Normal zone: 3584 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 262144 pages, LIFO batch:31
[    0.000000] On node 1 totalpages: 261632
[    0.000000] free_area_init_node: node 1, pgdat 40806fc0, node_mem_map 40be1fff00
[    0.000000]   Normal zone: 3577 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 261632 pages, LIFO batch:31
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0 
[    0.000000] Built 2 zonelists in Zone order, mobility grouping on.  Total pages: 516615
[    0.000000] Kernel command line: root=/dev/sdb3 console=ttyS1 palo_kernel=2/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[    0.000000] Memory: 2050012K/2095104K available (4640K kernel code, 1591K rwdata, 551K rodata, 1024K init, 476K bss, 45092K reserved, 0K cma-reserved)
[    0.000000] virtual kernel memory layout:
                   vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
                   memory  : 0x0000000040000000 - 0x00000040bfe00000   (264190 MB)
                     .init : 0x0000000040100000 - 0x0000000040200000   (1024 kB)
                     .data : 0x0000000040688000 - 0x000000004089fa20   (2142 kB)
                     .text : 0x0000000040200000 - 0x0000000040688000   (4640 kB)
[    0.000000] SLUB: HWalign=16, Order=0-3, MinObjects=0, CPUs=1, Nodes=8
[    0.000000] NR_IRQS:80
[    0.000007] sched_clock: 64 bits at 800MHz, resolution 1ns, wraps every 4398046511103ns
[    0.000478] Console: colour dummy device 160x64
[    0.000778] Calibrating delay loop... 1594.36 BogoMIPS (lpj=3188736)
[    0.048166] pid_max: default: 32768 minimum: 301
[    0.048402] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
[    0.048775] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
[    0.051017] devtmpfs: initialized
[    0.051593] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.053440] futex hash table entries: 256 (order: 0, 6144 bytes)
[    0.066507] NET: Registered protocol family 16
[    0.066881] Searching for devices...
[    0.281305] Found devices:
[    0.281364] 1. Storm Peak Slow DC- at 0xfffffffffe780000 [128] { 0, 0x0, 0x886, 0x00004 }
[    0.281583] 2. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
[    0.282039] 3. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
[    0.284386] 4. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
[    0.284614] 5. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
[    0.286869] 6. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
[    0.289120] 7. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
[    0.291352] 8. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
[    0.291582] 9. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
[    0.294098] 10. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
[    0.296418] 11. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
[    0.296646] Enabling PDC_PAT chassis codes support v0.05
[    1.110427] Logical CPU #0 is physical cpu #0 at location 0xffff0000ffff15 with hpa 0xfffffffffe780000
[    1.110729] CPU(s): 1 x PA8800 (Mako) at 800.001300 MHz
[    1.115263] Whole cache flush 2114067 cycles, flushing 8388608 bytes 880186 cycles
[    1.115271] Cache flush threshold set to 19675 KiB
[    1.127477] Whole TLB flush 2407 cycles, flushing 8388608 bytes 9664568 cycles
[    1.127481] TLB flush threshold set to 4 KiB
[    1.171489] SBA found Pluto 2.3 at 0xfffffffffed00000
[    1.234244] Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
[    1.270611] LBA 0:0: PCI host bridge to bus 0000:00
[    1.270749] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    1.270910] pci_bus 0000:00: root bus resource [mem 0xffffffff80000000-0xffffffff8fffffff] (bus address [0x80000000-0x8fffffff])
[    1.271464] pci_bus 0000:00: root bus resource [bus 00-07]
[    1.273749] pci 0000:00:01.0: [1033:0035] type 00 class 0x0c0310
[    1.273786] pci 0000:00:01.0: reg 0x10: [mem 0xffffffff80002000-0xffffffff80002fff]
[    1.273917] pci 0000:00:01.0: supports D1 D2
[    1.273922] pci 0000:00:01.0: PME# supported from D0 D1 D2 D3hot
[    1.274039] pci 0000:00:01.1: [1033:0035] type 00 class 0x0c0310
[    1.274068] pci 0000:00:01.1: reg 0x10: [mem 0xffffffff80001000-0xffffffff80001fff]
[    1.274188] pci 0000:00:01.1: supports D1 D2
[    1.274193] pci 0000:00:01.1: PME# supported from D0 D1 D2 D3hot
[    1.274283] pci 0000:00:01.2: [1033:00e0] type 00 class 0x0c0320
[    1.274312] pci 0000:00:01.2: reg 0x10: [mem 0xffffffff80000000-0xffffffff800000ff]
[    1.274431] pci 0000:00:01.2: supports D1 D2
[    1.274437] pci 0000:00:01.2: PME# supported from D0 D1 D2 D3hot
[    1.274549] pci 0000:00:02.0: [1095:0649] type 00 class 0x01018f
[    1.274577] pci 0000:00:02.0: reg 0x10: [io  0x0d18-0x0d1f]
[    1.274596] pci 0000:00:02.0: reg 0x14: [io  0x0d24-0x0d27]
[    1.274614] pci 0000:00:02.0: reg 0x18: [io  0x0d10-0x0d17]
[    1.274633] pci 0000:00:02.0: reg 0x1c: [io  0x0d20-0x0d23]
[    1.274651] pci 0000:00:02.0: reg 0x20: [io  0x0d00-0x0d0f]
[    1.274720] pci 0000:00:02.0: supports D1 D2
[    1.281646] Mercury version TR3.2 (0x32) found at 0xfffffffffed22000
[    1.322573] LBA 0:1: PCI host bridge to bus 0000:20
[    1.322711] pci_bus 0000:20: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
[    1.323207] pci_bus 0000:20: root bus resource [mem 0xffffffff90000000-0xffffffff9fffffff] (bus address [0x90000000-0x9fffffff])
[    1.327097] pci_bus 0000:20: root bus resource [bus 20-27]
[    1.327266] pci 0000:20:01.0: [1000:0021] type 00 class 0x010000
[    1.327296] pci 0000:20:01.0: reg 0x10: [io  0x12100-0x121ff]
[    1.327317] pci 0000:20:01.0: reg 0x14: [mem 0xffffffff90015000-0xffffffff900153ff 64bit]
[    1.327337] pci 0000:20:01.0: reg 0x1c: [mem 0xffffffff90012000-0xffffffff90013fff 64bit]
[    1.327398] pci 0000:20:01.0: supports D1 D2
[    1.327506] pci 0000:20:01.1: [1000:0021] type 00 class 0x010000
[    1.327527] pci 0000:20:01.1: reg 0x10: [io  0x12000-0x120ff]
[    1.327548] pci 0000:20:01.1: reg 0x14: [mem 0xffffffff90014000-0xffffffff900143ff 64bit]
[    1.327568] pci 0000:20:01.1: reg 0x1c: [mem 0xffffffff90010000-0xffffffff90011fff 64bit]
[    1.327618] pci 0000:20:01.1: supports D1 D2
[    1.327714] pci 0000:20:02.0: [14e4:1645] type 00 class 0x020000
[    1.327743] pci 0000:20:02.0: reg 0x10: [mem 0xffffffff90000000-0xffffffff9000ffff 64bit]
[    1.327841] pci 0000:20:02.0: PME# supported from D3hot D3cold
[    1.334746] Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
[    1.375653] LBA 0:2: PCI host bridge to bus 0000:40
[    1.375796] pci_bus 0000:40: root bus resource [io  0x20000-0x2ffff] (bus address [0x0000-0xffff])
[    1.376305] pci_bus 0000:40: root bus resource [mem 0xffffffffa0000000-0xffffffffafffffff] (bus address [0xa0000000-0xafffffff])
[    1.378730] pci_bus 0000:40: root bus resource [bus 40-47]
[    1.385674] Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
[    1.427257] LBA 0:3: PCI host bridge to bus 0000:60
[    1.427396] pci_bus 0000:60: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0xffff])
[    1.427894] pci_bus 0000:60: root bus resource [mem 0xffffffffb0000000-0xffffffffbfffffff] (bus address [0xb0000000-0xbfffffff])
[    1.430327] pci_bus 0000:60: root bus resource [bus 60-67]
[    1.437266] Mercury version TR3.2 (0x32) found at 0xfffffffffed28000
[    1.470484] LBA: lmmio_space [0xffffffffc0000000-0xffffffffdfffffff] - new
[    1.478732] LBA 0:4: PCI host bridge to bus 0000:80
[    1.478870] pci_bus 0000:80: root bus resource [io  0x40000-0x4ffff] (bus address [0x0000-0xffff])
[    1.479351] pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffdfffffff] (bus address [0xc0000000-0xdfffffff])
[    1.481789] pci_bus 0000:80: root bus resource [bus 80-87]
[    1.488729] Mercury version TR3.2 (0x32) found at 0xfffffffffed2c000
[    1.525252] LBA 0:6: PCI host bridge to bus 0000:c0
[    1.525394] pci_bus 0000:c0: root bus resource [io  0x50000-0x5ffff] (bus address [0x0000-0xffff])
[    1.526449] pci_bus 0000:c0: root bus resource [mem 0xffffffffe0000000-0xffffffffefffffff] (bus address [0xe0000000-0xefffffff])
[    1.530695] pci_bus 0000:c0: root bus resource [bus c0-c7]
[    1.537648] Mercury version TR3.2 (0x32) found at 0xfffffffffed2e000
[    1.571161] LBA: lmmio_space [0xfffffffff0000000-0xfffffffffe77ffff] - new
[    1.579379] LBA 0:7: PCI host bridge to bus 0000:e0
[    1.579519] pci_bus 0000:e0: root bus resource [io  0x60000-0x6ffff] (bus address [0x0000-0xffff])
[    1.580011] pci_bus 0000:e0: root bus resource [mem 0xfffffffff0000000-0xfffffffffe77ffff] (bus address [0xf0000000-0xfe77ffff])
[    1.582413] pci_bus 0000:e0: root bus resource [bus e0-e7]
[    1.582590] pci 0000:e0:01.0: [103c:1290] type 00 class 0x078000
[    1.582663] pci 0000:e0:01.0: reg 0x18: [mem 0xfffffffff4051000-0xfffffffff405100f]
[    1.582900] pci 0000:e0:01.1: [103c:1048] type 00 class 0x070002
[    1.582933] pci 0000:e0:01.1: reg 0x10: [mem 0xfffffffff4050000-0xfffffffff4050fff]
[    1.582972] pci 0000:e0:01.1: reg 0x18: [mem 0xfffffffff4020000-0xfffffffff403ffff pref]
[    1.583186] pci 0000:e0:02.0: [1002:5159] type 00 class 0x030000
[    1.583219] pci 0000:e0:02.0: reg 0x10: [mem 0xfffffffff0000000-0xfffffffff3ffffff pref]
[    1.583240] pci 0000:e0:02.0: reg 0x14: [io  0x6e000-0x6e0ff]
[    1.583262] pci 0000:e0:02.0: reg 0x18: [mem 0xfffffffff4040000-0xfffffffff404ffff]
[    1.583329] pci 0000:e0:02.0: reg 0x30: [mem 0xfffffffff4000000-0xfffffffff401ffff pref]
[    1.583380] pci 0000:e0:02.0: supports D1 D2
[    1.586707] powersw: Soft power switch support not available.
[    1.588732] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[    1.589355] pci 0000:e0:02.0: vgaarb: setting as boot VGA device
[    1.589513] pci 0000:e0:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
[    1.589870] pci 0000:e0:02.0: vgaarb: bridge control possible
[    1.592058] vgaarb: loaded
[    1.592296] SCSI subsystem initialized
[    1.596135] NET: Registered protocol family 2
[    1.596709] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
[    1.597205] TCP bind hash table entries: 16384 (order: 5, 131072 bytes)
[    1.597604] TCP: Hash tables configured (established 16384 bind 16384)
[    1.599523] UDP hash table entries: 1024 (order: 3, 32768 bytes)
[    1.599734] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes)
[    1.601831] NET: Registered protocol family 1
[    1.601952] PCI: CLS 16 bytes
[    1.602091] clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0xb8813b0cbe, max_idle_ns: 440795221700 ns
[    1.604030] clocksource: Switched to clocksource cr16
[    1.607429] Chassis warnings not supported.
[    1.607580] Performance monitoring counters enabled for Storm Peak Slow DC-
[    1.608124] workingset: timestamp_bits=59 max_order=19 bucket_order=0
[    1.614512] cryptomgr_test (19) used greatest stack depth: 13976 bytes left
[    1.615168] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[    1.615508] io scheduler noop registered
[    1.615600] io scheduler deadline registered
[    1.615879] io scheduler cfq registered (default)
[    1.622644] PDC Stable Storage facility v0.30
[    1.720861] STI GSC/PCI core graphics driver Version 0.9b
[    1.721132] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    1.729154] 0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 24, base_baud = 115200) is a 16450
[    1.757730] 0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 24, base_baud = 115200) is a 16550A
[    1.758270] console [ttyS1] enabled
[    1.758688] bootconsole [ttyB0] disabled
[    1.780183] 0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 24, base_baud = 115200) is a 16550A
[    1.801665] 0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 24, base_baud = 115200) is a 16550A
[    1.987310] sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 21
[    1.989765] sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
[    2.029847] sym0: SCSI BUS has been reset.
[    2.029953] scsi host0: sym-2.2.3
[    2.315996] random: fast init done
[    5.113015] scsi 0:0:0:0: Direct-Access     FUJITSU  MAP3735NC        3701 PQ: 0 ANSI: 3
[    5.113233] scsi target0:0:0: tagged command queuing enabled, command queue depth 16.
[    5.113710] scsi target0:0:0: Beginning Domain Validation
[    5.118951] scsi target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
[    5.127817] scsi target0:0:0: Ending Domain Validation
[    5.129667] scsi target0:0:1: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
[    5.131195] scsi 0:0:1:0: Direct-Access     IBM-ESXS ST336753LC    FN B85B PQ: 0 ANSI: 3
[    5.131415] scsi target0:0:1: tagged command queuing enabled, command queue depth 16.
[    5.132495] scsi target0:0:1: Beginning Domain Validation
[    5.138738] scsi target0:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
[    5.145322] scsi target0:0:1: Ending Domain Validation
[    9.177893] sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 22
[    9.180451] sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
[    9.220533] sym1: SCSI BUS has been reset.
[    9.220635] scsi host1: sym-2.2.3
[   16.700370] mousedev: PS/2 mouse device common for all mice
[   16.714061] sd 0:0:0:0: [sda] 143550456 512-byte logical blocks: (73.5 GB/68.4 GiB)
[   16.714431] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[   16.715024] NET: Registered protocol family 17
[   16.715253] sd 0:0:1:0: [sdb] 71096640 512-byte logical blocks: (36.4 GB/33.9 GiB)
[   16.717235] sd 0:0:0:0: [sda] Write Protect is off
[   16.717355] sd 0:0:0:0: [sda] Mode Sense: b3 00 00 08
[   16.731332] rtc-generic rtc-generic: setting system clock to 2017-06-17 05:29:49 UTC (1497677389)
[   16.731594] sd 0:0:1:0: [sdb] Write Protect is off
[   16.731599] sd 0:0:1:0: [sdb] Mode Sense: b3 00 10 08
[   16.739321] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[   16.741649] sd 0:0:1:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   16.771123]  sdb: sdb1 sdb2 sdb3 sdb4
[   16.783183] sd 0:0:1:0: [sdb] Attached SCSI disk
[   16.793807]  sda: sda1 sda2 sda3 < sda5 sda6 >
[   16.806437] sd 0:0:0:0: [sda] Attached SCSI disk
[   16.808795] EXT4-fs (sdb3): mounting ext3 file system using the ext4 subsystem
[   16.826998] EXT4-fs (sdb3): mounted filesystem with ordered data mode. Opts: (null)
[   16.827220] VFS: Mounted root (ext3 filesystem) readonly on device 8:19.
[   16.843537] devtmpfs: mounted
[   16.844878] Freeing unused kernel memory: 1024K
[   17.007562] Write protecting the kernel read-only data: 551k
[   17.736513] kbd_mode (69) used greatest stack depth: 10424 bytes left
[   17.992124] loadkeys (70) used greatest stack depth: 7240 bytes left
[   17.999560] init-early.sh (68) used greatest stack depth: 6760 bytes left
[   31.340128] libata version 3.00 loaded.
[   31.443299] pps_core: LinuxPPS API ver. 1 registered
[   31.443306] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[   31.473661] pata_cmd64x 0000:00:02.0: Secondary port is disabled
[   31.513422] scsi host2: pata_cmd64x
[   31.519032] scsi host3: pata_cmd64x
[   31.519185] ata1: PATA max UDMA/100 cmd 0xd18 ctl 0xd24 bmdma 0xd00 irq 20
[   31.519189] ata2: DUMMY
[   31.520305] pata_cmd64x: active 10 recovery 10 setup 3.
[   31.520320] pata_cmd64x: active 10 recovery 10 setup 3.
[   31.574976] PTP clock support registered
[   31.686312] ata1.00: ATAPI: DV-28E-C, C.4D, max UDMA/33
[   31.686338] pata_cmd64x: active 3 recovery 1 setup 1.
[   31.702557] ata1.00: configured for UDMA/33
[   31.751365] scsi 2:0:0:0: CD-ROM            TEAC     DV-28E-C         C.4D PQ: 0 ANSI: 5
[   32.097689] tg3.c:v3.137 (May 11, 2014)
[   32.552368] rtc rtc0: __rtc_set_alarm: err=-22
[   33.453004] tg3 0000:20:02.0 eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:13:21:d6:30:d0
[   33.453014] tg3 0000:20:02.0 eth0: attached PHY is 5701 (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0])
[   33.453021] tg3 0000:20:02.0 eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[0]
[   33.453028] tg3 0000:20:02.0 eth0: dma_rwctrl[76ff2d0f] dma_mask[32-bit]
[   34.521108] EXT4-fs (sdb3): re-mounted. Opts: (null)
[   36.180140] Adding 3091452k swap on /dev/sdb4.  Priority:-1 extents:1 across:3091452k 
[   36.869053] EXT4-fs (sdb2): mounting ext2 file system using the ext4 subsystem
[   36.881407] EXT4-fs (sdb2): mounted filesystem without journal. Opts: (null)
[   49.120047] random: crng init done
[   56.549994] tg3 0000:20:02.0 eth0: Link is up at 100 Mbps, full duplex
[   56.550003] tg3 0000:20:02.0 eth0: Flow control is off for TX and off for RX
[   69.936992] NET: Registered protocol family 10
[   69.952417] Segment Routing with IPv6
[ 1455.198271] try(12334): unaligned access to 0x00000000f9205589 at ip=0x0000000000010753
[ 1455.198285] try(12334): unaligned access to 0x00000000f9205589 at ip=0x0000000000010757
[ 1455.198292] try(12334): unaligned access to 0x00000000f920558a at ip=0x0000000000010753
[ 1455.198298] try(12334): unaligned access to 0x00000000f920558a at ip=0x0000000000010757
[ 1455.198304] try(12334): unaligned access to 0x00000000f920558b at ip=0x0000000000010753

[53244.910489] do_page_fault() command='as' type=15 address=0x000c1078 in libbfd-2.26.1.so[f850b000+b9000]
               trap #15: Data TLB miss fault, vm_start = 0x00065000, vm_end = 0x0006e000
[53244.910517] CPU: 0 PID: 1275 Comm: as Not tainted 4.12.0-rc5-00187-gab2789b #17
[53244.910522] task: 000000006a494280 task.stack: 00000040a00e4000

[53244.910527]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[53244.910531] PSW: 00000000000001101111110100001111 Not tainted
[53244.910537] r00-03  000000ff0006fd0f 00000000f85cf5f4 00000000f852fe4f 00000000007ef178
[53244.910542] r04-07  00000000f85ce5f4 0000000000053000 00000000007ef078 00000000fac3690c
[53244.910547] r08-11  00000000fac36808 00000000000651e4 00000000fac367d8 000000000006d450
[53244.910553] r12-15  00000000fac367dc 000000000006da44 0000000000055800 00000000007ef350
[53244.910558] r16-19  000000000006d438 0000000000000002 000000000006d424 00000000f85ce5f4
[53244.910563] r20-23  0000000000000000 00000000f85ce5f4 00000000f85c7850 00000000000001b6
[53244.910569] r24-27  0000000000000000 0000000000000000 000000000000001b 0000000000063ebc
[53244.910574] r28-31  00000000000c106c 0000000000000000 00000000fac36a00 0000000000000998
[53244.910579] sr00-03  0000000000012000 0000000000000000 0000000000000000 0000000000012000
[53244.910585] sr04-07  0000000000012000 0000000000012000 0000000000012000 0000000000012000

[53244.910590]       VZOUICununcqcqcqcqcqcrmunTDVZOUI
[53244.910593] FPSR: 00000000000000000000000000000000
[53244.910595] FPER1: 00000000
[53244.910601] fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[53244.910606] fr04-07  00000000a12e1c5b 41d65162346b533c 0000000000000000 3ff00430b178b370
[53244.910612] fr08-11  0000000000000000 bc361578001e0162 0000000000000000 0000000000000000
[53244.910617] fr12-15  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[53244.910622] fr16-19  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[53244.910627] fr20-23  0000000000000000 0000000000000000 0000000000000088 0000003700000000
[53244.910633] fr24-27  0000000000000000 0000000000000000 3ec29e349cbe78d0 0000000000000000
[53244.910638] fr28-31  3fe00000000004dc 0000000000000000 bd2ef00000000000 3ff810b375dce72e

[53244.910645] IASQ: 0000000000012000 0000000000012000 IAOQ: 00000000f852fdeb 00000000f852fdef
[53244.910649]  IIR: 0f981094    ISR: 0000000000012000  IOR: 00000000000c1078
[53244.910653]  CPU:        0   CR30: 00000040a00e4000 CR31: fffffff0f0e05ee0
[53244.910656]  ORIG_R28: 0000000000000000
[53244.910659]  IAOQ[0]: 00000000f852fdeb
[53244.910662]  IAOQ[1]: 00000000f852fdef
[53244.910665]  RP(r2): 00000000f852fe4f


#
# Automatically generated file; DO NOT EDIT.
# Linux/parisc 4.12.0-rc5 Kernel Configuration
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_PGTABLE_LEVELS=3
CONFIG_SYS_SUPPORTS_HUGETLBFS=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE="hppa64-linux-"
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_DEFAULT_HOSTNAME="none"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_FHANDLE=y
# CONFIG_USELIB is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_CLOCKEVENTS=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ is not set
CONFIG_HIGH_RES_TIMERS=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TINY_SRCU=y
# CONFIG_TASKS_RCU is not set
# CONFIG_RCU_STALL_COMMON is not set
CONFIG_RCU_NEED_SEGCBLIST=y
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_BUILD_BIN2C is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=17
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_GENERIC_SCHED_CLOCK=y
CONFIG_CGROUPS=y
# CONFIG_MEMCG is not set
# CONFIG_BLK_CGROUP is not set
# CONFIG_CGROUP_SCHED is not set
# CONFIG_CGROUP_PIDS is not set
# CONFIG_CGROUP_RDMA is not set
# CONFIG_CGROUP_FREEZER is not set
# CONFIG_CGROUP_HUGETLB is not set
# CONFIG_CPUSETS is not set
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
# CONFIG_CGROUP_BPF is not set
# CONFIG_CGROUP_DEBUG is not set
# CONFIG_SOCK_CGROUP_DATA is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW=y
CONFIG_BPF=y
# CONFIG_EXPERT is not set
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_POSIX_TIMERS=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_ABSOLUTE_PERCPU is not set
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_BPF_SYSCALL=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_USERFAULTFD=y
CONFIG_PCI_QUIRKS=y
CONFIG_MEMBARRIER=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
# CONFIG_PC104 is not set

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SYSTEM_DATA_VERIFICATION is not set
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_HASH=y
# CONFIG_ISA_BUS_API is not set
CONFIG_CLONE_BACKWARDS=y
CONFIG_ARCH_NO_COHERENT_DMA_MMAP=y
CONFIG_CPU_NO_EFFICIENT_FFS=y
# CONFIG_HAVE_ARCH_VMAP_STACK is not set
# CONFIG_ARCH_OPTIONAL_KERNEL_RWX is not set
# CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
# CONFIG_ARCH_HAS_STRICT_MODULE_RWX is not set

#
# GCOV-based kernel profiling
#
# CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
# CONFIG_MODULE_COMPRESS is not set
CONFIG_TRIM_UNUSED_KSYMS=y
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_BLOCK=y
CONFIG_BLK_SCSI_REQUEST=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_CMDLINE_PARSER is not set
# CONFIG_BLK_WBT is not set
# CONFIG_BLK_SED_OPAL is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_BLOCK_COMPAT=y
CONFIG_BLK_MQ_PCI=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_MQ_IOSCHED_DEADLINE is not set
# CONFIG_MQ_IOSCHED_KYBER is not set
# CONFIG_IOSCHED_BFQ is not set
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
# CONFIG_MLONGCALLS is not set
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
# CONFIG_SMP is not set
CONFIG_IRQSTACKS=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_SCHED_HRTICK=y
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_NO_BOOTMEM=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
# CONFIG_CMA is not set
# CONFIG_ZPOOL is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSMALLOC is not set
CONFIG_MAX_STACK_SIZE_MB=80
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_AUDIT_ARCH=y

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
# CONFIG_GSC is not set
CONFIG_PCI=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_PCI_BUS_ADDR_T_64BIT=y
CONFIG_PCI_MSI=y
# CONFIG_PCI_MSI_IRQ_DOMAIN is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
# CONFIG_HOTPLUG_PCI is not set

#
# DesignWare PCI Core Support
#

#
# PCI host controller drivers
#

#
# PCI Endpoint
#
# CONFIG_PCI_ENDPOINT is not set

#
# PCI switch controller drivers
#
# CONFIG_PCI_SW_SWITCHTEC is not set
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=m
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=m
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=m
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
# CONFIG_NET_UDP_TUNNEL is not set
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=m
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=m
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
# CONFIG_INET6_ESP_OFFLOAD is not set
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
CONFIG_IPV6_VTI=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_FOU is not set
# CONFIG_IPV6_FOU_TUNNEL is not set
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NET_PTP_CLASSIFY=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
CONFIG_NETLINK_DIAG=m
# CONFIG_MPLS is not set
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
# CONFIG_NET_NCSI is not set
# CONFIG_CGROUP_NET_PRIO is not set
# CONFIG_CGROUP_NET_CLASSID is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
# CONFIG_STREAM_PARSER is not set
CONFIG_FIB_RULES=y
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
# CONFIG_PSAMPLE is not set
# CONFIG_NET_IFE is not set
CONFIG_LWTUNNEL=y
# CONFIG_LWTUNNEL_BPF is not set
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
# CONFIG_NET_DEVLINK is not set
CONFIG_MAY_USE_DEVLINK=y

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
# CONFIG_DMA_SHARED_BUFFER is not set

#
# Bus devices
#
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
# CONFIG_BLK_DEV is not set
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_NVME_FC is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ENCLOSURE_SERVICES is not set
CONFIG_HP_ILO=m
# CONFIG_SRAM is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
CONFIG_EEPROM_93CX6=m
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#

#
# Altera FPGA firmware download module
#

#
# Intel MIC Bus Driver
#

#
# SCIF Bus Driver
#

#
# VOP Bus Driver
#

#
# Intel MIC Host Driver
#

#
# Intel MIC Card Driver
#

#
# SCIF Driver
#

#
# Intel MIC Coprocessor State Management (COSM) Drivers
#

#
# VOP Driver
#
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
# CONFIG_CXL_BASE is not set
# CONFIG_CXL_AFU_DRIVER_OPS is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_MQ_DEFAULT=y
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_SMARTPQI is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=m
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
# CONFIG_SATA_PMP is not set

#
# Controllers with non-SFF native interface
#
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
# CONFIG_ATA_PIIX is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
CONFIG_PATA_CMD64X=m
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_LEGACY is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_MACSEC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_TUN is not set
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
# CONFIG_NLMON is not set
# CONFIG_ARCNET is not set

#
# CAIF transport drivers
#

#
# Distributed Switch Architecture drivers
#
CONFIG_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_AGERE is not set
# CONFIG_NET_VENDOR_ALACRITECH is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_ALTERA_TSE is not set
# CONFIG_NET_VENDOR_AMAZON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_AURORA is not set
# CONFIG_NET_CADENCE is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
CONFIG_TIGON3=m
CONFIG_TIGON3_HWMON=y
# CONFIG_BNX2X is not set
# CONFIG_BNXT is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CAVIUM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_DNET is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EZCHIP is not set
# CONFIG_NET_VENDOR_EXAR is not set
# CONFIG_NET_VENDOR_HP is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_PACKET_ENGINE is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RENESAS is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_ROCKER is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_NET_VENDOR_SYNOPSYS is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_MDIO_DEVICE=m
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_THUNDER is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
# CONFIG_AQUANTIA_PHY is not set
# CONFIG_AT803X_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
# CONFIG_FIXED_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_INTEL_XWAY_PHY is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MICROCHIP_PHY is not set
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_TERANETICS_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_XILINX_GMII2RGMII is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Host-side USB support is needed for USB Network Adapter support
#
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set
# CONFIG_NVM is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_PS2_FOCALTECH=y
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
# CONFIG_RMI4_CORE is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVMEM is not set
CONFIG_DEVKMEM=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
# CONFIG_SERIAL_8250_FSL is not set
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_RT288X is not set
# CONFIG_SERIAL_8250_MOXA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_UARTLITE is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_XILLYBUS is not set

#
# I2C support
#
# CONFIG_I2C is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set

#
# PPS support
#
CONFIG_PPS=m
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_GPIO is not set

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=m

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
# CONFIG_POWER_AVS is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=m
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_ASPEED is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_NCT6683 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_DRM is not set

#
# ACP (Audio CoProcessor) Configuration
#
# CONFIG_DRM_LIB_RANDOM is not set

#
# Frame buffer Devices
#
# CONFIG_FB is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
# CONFIG_VGASTATE is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_STI_CONSOLE=y
# CONFIG_SOUND is not set

#
# HID support
#
# CONFIG_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#

#
# SPI RTC drivers
#

#
# SPI and I2C RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y

#
# HID Sensor RTC drivers
#
# CONFIG_DMADEVICES is not set

#
# DMABUF options
#
# CONFIG_SYNC_FILE is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VIRT_DRIVERS is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV_TSCPAGE is not set
# CONFIG_STAGING is not set

#
# Hardware Spinlock drivers
#

#
# Clock Source drivers
#
# CONFIG_ATMEL_PIT is not set
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set

#
# Rpmsg drivers
#

#
# SOC (System On Chip) specific Drivers
#

#
# Broadcom SoC drivers
#

#
# i.MX SoC drivers
#
# CONFIG_SUNXI_SRAM is not set
# CONFIG_SOC_TI is not set
# CONFIG_SOC_ZTE is not set
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
CONFIG_ARM_GIC_MAX_NR=1
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set

#
# Performance monitor support
#
# CONFIG_RAS is not set

#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_DAX is not set
# CONFIG_NVMEM is not set
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set

#
# FPGA Configuration Support
#
# CONFIG_FPGA is not set

#
# FSI support
#
# CONFIG_FSI is not set

#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_ENCRYPTION is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_FS_DAX is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
CONFIG_MANDATORY_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
# CONFIG_CONFIGFS_FS is not set
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
# CONFIG_NLS is not set

#
# Kernel hacking
#

#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set

#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_PAGE_OWNER is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_MAGIC_SYSRQ is not set
CONFIG_DEBUG_KERNEL=y

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_RODATA_TEST is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
CONFIG_DEBUG_STACK_USAGE=y
# CONFIG_DEBUG_VM is not set
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Lockups and Hangs
#
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
CONFIG_WQ_WATCHDOG=y
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHED_INFO is not set
# CONFIG_SCHEDSTATS is not set
CONFIG_SCHED_STACK_END_CHECK=y
# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_STACKTRACE is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_PI_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
# CONFIG_PROVE_RCU is not set
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_TORTURE_TEST is not set
# CONFIG_RCU_PERF_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set

#
# Runtime Testing
#
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_TEST_SORT is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_HASH is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_MEMTEST is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# CONFIG_SAMPLES is not set
# CONFIG_ARCH_WANTS_UBSAN_NO_NULL is not set
CONFIG_UBSAN=y
CONFIG_UBSAN_ALIGNMENT=y
CONFIG_UBSAN_NULL=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_SECCOMP is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HARDENED_USERCOPY=y
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=m
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_ACOMP2=y
# CONFIG_CRYPTO_RSA is not set
# CONFIG_CRYPTO_DH is not set
# CONFIG_CRYPTO_ECDH is not set
CONFIG_CRYPTO_MANAGER=m
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_GF128MUL is not set
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_MCRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
# CONFIG_CRYPTO_SEQIV is not set
CONFIG_CRYPTO_ECHAINIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_KEYWRAP is not set

#
# Hash modes
#
# CONFIG_CRYPTO_CMAC is not set
CONFIG_CRYPTO_HMAC=m
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRCT10DIF is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_POLY1305 is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=m
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_SHA3 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_TI is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_CHACHA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DRBG_MENU=m
CONFIG_CRYPTO_DRBG_HMAC=y
# CONFIG_CRYPTO_DRBG_HASH is not set
CONFIG_CRYPTO_DRBG=m
CONFIG_CRYPTO_JITTERENTROPY=m
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_USER_API_RNG is not set
# CONFIG_CRYPTO_USER_API_AEAD is not set
# CONFIG_CRYPTO_HW is not set

#
# Certificates for signature checking
#
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
# CONFIG_HAVE_ARCH_BITREVERSE is not set
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IO=y
# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
# CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=m
CONFIG_ZLIB_DEFLATE=m
# CONFIG_XZ_DEC is not set
# CONFIG_XZ_DEC_BCJ is not set
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
# CONFIG_IRQ_POLL is not set
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_SG_SPLIT is not set
CONFIG_SG_POOL=y
# CONFIG_ARCH_HAS_SG_CHAIN is not set
CONFIG_SBITMAP=y

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:39:57 2018
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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: 4.12-rc5+: segfault while compiling, on rp3410
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On 2017-06-20 10:20 AM, Meelis Roos wrote:
> I am using gentoo on my hppa machines and just tried
> 4.12.0-rc5-00187-gab2789b at the end of last week. This time there
> was new gcc release so a lot of work. rp3440 and A500 had no problems,
> rp3410 errored out with SIGSEGV, twice.
Helge and I have had a long discussion about these SEGVs.  They are 
essentially random.
The are very rare on UP machines.  I don't think we have seen one yet on 
the panama buildd
machine which is also a rp3410.  They are much more common on phantom 
which is four way
c8000 at 1 GHz.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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From - Thu Nov 08 21:39:58 2018
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From: Jiri Slaby <jslaby@suse.cz>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 1/1] futex: remove duplicated code and fix UB
Date: Wed, 21 Jun 2017 13:53:18 +0200
Lines: 1182
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Cc: mingo@redhat.com, peterz@infradead.org, dvhart@infradead.org,
        linux-kernel@vger.kernel.org, Jiri Slaby <jslaby@suse.cz>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Richard Kuo <rkuo@codeaurora.org>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Michal Simek <monstr@monstr.eu>,
        Ralf Baechle <ralf@linux-mips.org>,
        Jonas Bonn <jonas@southpole.se>,
        Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
        Stafford Horne <shorne@gmail.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <ben
To: tglx@linutronix.de
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/28019>

There is code duplicated over all architecture's headers for
futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
and comparison of the result.

Remove this duplication and leave up to the arches only the needed
assembly which is now in arch_futex_atomic_op_inuser.

This effectively distributes the Will Deacon's arm64 fix for undefined
behaviour reported by UBSAN to all architectures. The fix was done in
commit 5f16a046f8e1 (arm64: futex: Fix undefined behaviour with
FUTEX_OP_OPARG_SHIFT usage).  Look there for an example dump.

Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
remove pointless access_ok() checks") as access_ok there returns true.
We introduce it back to the helper for the sake of simplicity (it gets
optimized away anyway).

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stafford Horne <shorne@gmail.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390]
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Chris Metcalf <cmetcalf@mellanox.com> [for tile]
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: <x86@kernel.org>
Cc: <linux-alpha@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Cc: <linux-snps-arc@lists.infradead.org>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: <linux-hexagon@vger.kernel.org>
Cc: <linux-ia64@vger.kernel.org>
Cc: <linux-mips@linux-mips.org>
Cc: <openrisc@lists.librecores.org>
Cc: <linux-parisc@vger.kernel.org>
Cc: <linuxppc-dev@lists.ozlabs.org>
Cc: <linux-s390@vger.kernel.org>
Cc: <linux-sh@vger.kernel.org>
Cc: <sparclinux@vger.kernel.org>
Cc: <linux-xtensa@linux-xtensa.org>
Cc: <linux-arch@vger.kernel.org>
---
 arch/alpha/include/asm/futex.h      | 26 ++++---------------
 arch/arc/include/asm/futex.h        | 40 ++++-------------------------
 arch/arm/include/asm/futex.h        | 26 +++----------------
 arch/arm64/include/asm/futex.h      | 26 +++----------------
 arch/frv/include/asm/futex.h        |  3 ++-
 arch/frv/kernel/futex.c             | 27 +++-----------------
 arch/hexagon/include/asm/futex.h    | 38 +++-------------------------
 arch/ia64/include/asm/futex.h       | 25 +++----------------
 arch/microblaze/include/asm/futex.h | 38 +++-------------------------
 arch/mips/include/asm/futex.h       | 25 +++----------------
 arch/openrisc/include/asm/futex.h   | 39 +++--------------------------
 arch/parisc/include/asm/futex.h     | 26 +++----------------
 arch/powerpc/include/asm/futex.h    | 26 ++++---------------
 arch/s390/include/asm/futex.h       | 23 ++++-------------
 arch/sh/include/asm/futex.h         | 26 +++----------------
 arch/sparc/include/asm/futex_64.h   | 26 ++++---------------
 arch/tile/include/asm/futex.h       | 40 ++++-------------------------
 arch/x86/include/asm/futex.h        | 40 ++++-------------------------
 arch/xtensa/include/asm/futex.h     | 27 ++++----------------
 include/asm-generic/futex.h         | 50 +++++++------------------------------
 kernel/futex.c                      | 36 ++++++++++++++++++++++++++
 21 files changed, 127 insertions(+), 506 deletions(-)

diff --git a/arch/alpha/include/asm/futex.h b/arch/alpha/include/asm/futex.h
index fb01dfb760c2..05a70edd57b6 100644
--- a/arch/alpha/include/asm/futex.h
+++ b/arch/alpha/include/asm/futex.h
@@ -25,18 +25,10 @@
 	:	"r" (uaddr), "r"(oparg)				\
 	:	"memory")
 
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -62,17 +54,9 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/arc/include/asm/futex.h b/arch/arc/include/asm/futex.h
index 11e1b1f3acda..eb887dd13e74 100644
--- a/arch/arc/include/asm/futex.h
+++ b/arch/arc/include/asm/futex.h
@@ -73,20 +73,11 @@
 
 #endif
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
-
 #ifndef CONFIG_ARC_HAS_LLSC
 	preempt_disable();	/* to guarantee atomic r-m-w of futex op */
 #endif
@@ -118,30 +109,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	preempt_enable();
 #endif
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
index 6795368ad023..cc414382dab4 100644
--- a/arch/arm/include/asm/futex.h
+++ b/arch/arm/include/asm/futex.h
@@ -128,20 +128,10 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 #endif /* !SMP */
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 #ifndef CONFIG_SMP
 	preempt_disable();
 #endif
@@ -172,17 +162,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 	preempt_enable();
 #endif
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h
index f32b42e8725d..5bb2fd4674e7 100644
--- a/arch/arm64/include/asm/futex.h
+++ b/arch/arm64/include/asm/futex.h
@@ -48,20 +48,10 @@ do {									\
 } while (0)
 
 static inline int
-futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (int)(encoded_op << 8) >> 20;
-	int cmparg = (int)(encoded_op << 20) >> 20;
 	int oldval = 0, ret, tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1U << (oparg & 0x1f);
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -91,17 +81,9 @@ futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/frv/include/asm/futex.h b/arch/frv/include/asm/futex.h
index 2e1da71e27a4..ab346f5f8820 100644
--- a/arch/frv/include/asm/futex.h
+++ b/arch/frv/include/asm/futex.h
@@ -7,7 +7,8 @@
 #include <asm/errno.h>
 #include <linux/uaccess.h>
 
-extern int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr);
+extern int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr);
 
 static inline int
 futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
diff --git a/arch/frv/kernel/futex.c b/arch/frv/kernel/futex.c
index d155ca9e5098..37f7b2bf7f73 100644
--- a/arch/frv/kernel/futex.c
+++ b/arch/frv/kernel/futex.c
@@ -186,20 +186,10 @@ static inline int atomic_futex_op_xchg_xor(int oparg, u32 __user *uaddr, int *_o
 /*
  * do the futex operations
  */
-int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -225,18 +215,9 @@ int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS; break;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
 
 	return ret;
 
-} /* end futex_atomic_op_inuser() */
+} /* end arch_futex_atomic_op_inuser() */
diff --git a/arch/hexagon/include/asm/futex.h b/arch/hexagon/include/asm/futex.h
index 7e597f8434da..c607b77c8215 100644
--- a/arch/hexagon/include/asm/futex.h
+++ b/arch/hexagon/include/asm/futex.h
@@ -31,18 +31,9 @@
 
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -72,30 +63,9 @@ futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h
index 76acbcd5c060..6d67dc1eaf2b 100644
--- a/arch/ia64/include/asm/futex.h
+++ b/arch/ia64/include/asm/futex.h
@@ -45,18 +45,9 @@ do {									\
 } while (0)
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -84,17 +75,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/microblaze/include/asm/futex.h b/arch/microblaze/include/asm/futex.h
index 01848f056f43..a9dad9e5e132 100644
--- a/arch/microblaze/include/asm/futex.h
+++ b/arch/microblaze/include/asm/futex.h
@@ -29,18 +29,9 @@
 })
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -66,30 +57,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/mips/include/asm/futex.h b/arch/mips/include/asm/futex.h
index 1de190bdfb9c..a9e61ea54ca9 100644
--- a/arch/mips/include/asm/futex.h
+++ b/arch/mips/include/asm/futex.h
@@ -83,18 +83,9 @@
 }
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -125,17 +116,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/openrisc/include/asm/futex.h b/arch/openrisc/include/asm/futex.h
index 778087341977..8fed278a24b8 100644
--- a/arch/openrisc/include/asm/futex.h
+++ b/arch/openrisc/include/asm/futex.h
@@ -30,20 +30,10 @@
 })
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -68,30 +58,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 0ba14300cd8e..c601aab2fb36 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -32,22 +32,12 @@ _futex_spin_unlock_irqrestore(u32 __user *uaddr, unsigned long int *flags)
 }
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
 	unsigned long int flags;
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval, ret;
 	u32 tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(*uaddr)))
-		return -EFAULT;
-
 	_futex_spin_lock_irqsave(uaddr, &flags);
 	pagefault_disable();
 
@@ -85,17 +75,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 	pagefault_enable();
 	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
-	if (ret == 0) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/powerpc/include/asm/futex.h b/arch/powerpc/include/asm/futex.h
index eaada6c92344..719ed9b61ea7 100644
--- a/arch/powerpc/include/asm/futex.h
+++ b/arch/powerpc/include/asm/futex.h
@@ -29,18 +29,10 @@
 	: "b" (uaddr), "i" (-EFAULT), "r" (oparg) \
 	: "cr0", "memory")
 
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -66,17 +58,9 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h
index a4811aa0304d..8f8eec9e1198 100644
--- a/arch/s390/include/asm/futex.h
+++ b/arch/s390/include/asm/futex.h
@@ -21,17 +21,12 @@
 		: "0" (-EFAULT), "d" (oparg), "a" (uaddr),		\
 		  "m" (*uaddr) : "cc");
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, newval, ret;
 
 	load_kernel_asce();
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
 
 	pagefault_disable();
 	switch (op) {
@@ -60,17 +55,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	}
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/sh/include/asm/futex.h b/arch/sh/include/asm/futex.h
index 8e26e0ddc872..38a889edc3a6 100644
--- a/arch/sh/include/asm/futex.h
+++ b/arch/sh/include/asm/futex.h
@@ -27,21 +27,12 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	return atomic_futex_op_cmpxchg_inatomic(uval, uaddr, oldval, newval);
 }
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	u32 oparg = (encoded_op << 8) >> 20;
-	u32 cmparg = (encoded_op << 20) >> 20;
 	u32 oldval, newval, prev;
 	int ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	do {
@@ -77,17 +68,8 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = ((int)oldval < (int)cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = ((int)oldval >= (int)cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = ((int)oldval <= (int)cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = ((int)oldval > (int)cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
 
 	return ret;
 }
diff --git a/arch/sparc/include/asm/futex_64.h b/arch/sparc/include/asm/futex_64.h
index 4e899b0dabf7..1cfd89d92208 100644
--- a/arch/sparc/include/asm/futex_64.h
+++ b/arch/sparc/include/asm/futex_64.h
@@ -29,22 +29,14 @@
 	: "r" (uaddr), "r" (oparg), "i" (-EFAULT)	\
 	: "memory")
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tem;
 
-	if (unlikely(!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))))
-		return -EFAULT;
 	if (unlikely((((unsigned long) uaddr) & 0x3UL)))
 		return -EINVAL;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -69,17 +61,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/tile/include/asm/futex.h b/arch/tile/include/asm/futex.h
index e64a1b75fc38..83c1e639b411 100644
--- a/arch/tile/include/asm/futex.h
+++ b/arch/tile/include/asm/futex.h
@@ -106,12 +106,9 @@
 	lock = __atomic_hashed_lock((int __force *)uaddr)
 #endif
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int uninitialized_var(val), ret;
 
 	__futex_prolog();
@@ -119,12 +116,6 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	/* The 32-bit futex code makes this assumption, so validate it here. */
 	BUILD_BUG_ON(sizeof(atomic_t) != sizeof(int));
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 	switch (op) {
 	case FUTEX_OP_SET:
@@ -148,30 +139,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	}
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (val == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (val != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (val < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (val >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (val <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (val > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = val;
+
 	return ret;
 }
 
diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
index b4c1f5453436..f4dc9b63bdda 100644
--- a/arch/x86/include/asm/futex.h
+++ b/arch/x86/include/asm/futex.h
@@ -41,20 +41,11 @@
 		       "+m" (*uaddr), "=&r" (tem)		\
 		     : "r" (oparg), "i" (-EFAULT), "1" (0))
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tem;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -80,30 +71,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/xtensa/include/asm/futex.h b/arch/xtensa/include/asm/futex.h
index b39531babec0..eaaf1ebcc7a4 100644
--- a/arch/xtensa/include/asm/futex.h
+++ b/arch/xtensa/include/asm/futex.h
@@ -44,18 +44,10 @@
 	: "r" (uaddr), "I" (-EFAULT), "r" (oparg)	\
 	: "memory")
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 #if !XCHAL_HAVE_S32C1I
 	return -ENOSYS;
@@ -89,19 +81,10 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (ret)
-		return ret;
+	if (!ret)
+		*oval = oldval;
 
-	switch (cmp) {
-	case FUTEX_OP_CMP_EQ: return (oldval == cmparg);
-	case FUTEX_OP_CMP_NE: return (oldval != cmparg);
-	case FUTEX_OP_CMP_LT: return (oldval < cmparg);
-	case FUTEX_OP_CMP_GE: return (oldval >= cmparg);
-	case FUTEX_OP_CMP_LE: return (oldval <= cmparg);
-	case FUTEX_OP_CMP_GT: return (oldval > cmparg);
-	}
-
-	return -ENOSYS;
+	return ret;
 }
 
 static inline int
diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h
index bf2d34c9d804..f0d8b1c51343 100644
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -13,7 +13,7 @@
  */
 
 /**
- * futex_atomic_op_inuser() - Atomic arithmetic operation with constant
+ * arch_futex_atomic_op_inuser() - Atomic arithmetic operation with constant
  *			  argument and comparison of the previous
  *			  futex value with another constant.
  *
@@ -25,18 +25,11 @@
  * <0 - On error
  */
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval, ret;
 	u32 tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
 	preempt_disable();
 	pagefault_disable();
 
@@ -74,17 +67,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	pagefault_enable();
 	preempt_enable();
 
-	if (ret == 0) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (ret == 0)
+		*oval = oldval;
+
 	return ret;
 }
 
@@ -126,18 +111,9 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 
 #else
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -153,17 +129,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/kernel/futex.c b/kernel/futex.c
index b8ae87d227da..0b6e298d1e4c 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1546,6 +1546,42 @@ futex_wake(u32 __user *uaddr, unsigned int flags, int nr_wake, u32 bitset)
 	return ret;
 }
 
+static int futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
+{
+	int op = (encoded_op >> 28) & 7;
+	int cmp = (encoded_op >> 24) & 15;
+	int oparg = (int)(encoded_op << 8) >> 20;
+	int cmparg = (int)(encoded_op << 20) >> 20;
+	int oldval, ret;
+
+	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
+		oparg = 1U << (oparg & 0x1f);
+
+	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+		return -EFAULT;
+
+	ret = arch_futex_atomic_op_inuser(op, oparg, &oldval, uaddr);
+	if (ret)
+		return ret;
+
+	switch (cmp) {
+	case FUTEX_OP_CMP_EQ:
+		return oldval == cmparg;
+	case FUTEX_OP_CMP_NE:
+		return oldval != cmparg;
+	case FUTEX_OP_CMP_LT:
+		return oldval < cmparg;
+	case FUTEX_OP_CMP_GE:
+		return oldval >= cmparg;
+	case FUTEX_OP_CMP_LE:
+		return oldval <= cmparg;
+	case FUTEX_OP_CMP_GT:
+		return oldval > cmparg;
+	default:
+		return -ENOSYS;
+	}
+}
+
 /*
  * Wake up all waiters hashed on the physical page that is mapped
  * to this virtual address:
-- 
2.13.1

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From - Thu Nov 08 21:39:58 2018
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From: Darren Hart <dvhart@infradead.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 1/1] futex: remove duplicated code and fix UB
Date: Wed, 21 Jun 2017 20:53:37 -0700
Lines: 27
Approved: news@gmane.org
Message-ID: <20170622035337.GF25900@fury>
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, peterz@infradead.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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To: Jiri Slaby <jslaby@suse.cz>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/2572>

On Wed, Jun 21, 2017 at 01:53:18PM +0200, Jiri Slaby wrote:
> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
> 
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.
> 
> This effectively distributes the Will Deacon's arm64 fix for undefined
> behaviour reported by UBSAN to all architectures. The fix was done in
> commit 5f16a046f8e1 (arm64: futex: Fix undefined behaviour with
> FUTEX_OP_OPARG_SHIFT usage).  Look there for an example dump.
> 
> Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
> remove pointless access_ok() checks") as access_ok there returns true.
> We introduce it back to the helper for the sake of simplicity (it gets
> optimized away anyway).
> 

This required a minor manual merge for ARM on the tip of Linus' tree today. The
reduced duplication is a welcome improvement.

Reviewed-by: Darren Hart (VMware) <dvhart@infradead.org>

-- 
Darren Hart
VMware Open Source Technology Center

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To: John David Anglin <dave.anglin@bell.net>
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> > I am using gentoo on my hppa machines and just tried
> > 4.12.0-rc5-00187-gab2789b at the end of last week. This time there
> > was new gcc release so a lot of work. rp3440 and A500 had no problems,
> > rp3410 errored out with SIGSEGV, twice.
> Helge and I have had a long discussion about these SEGVs.  They are
> essentially random.
> The are very rare on UP machines.  I don't think we have seen one yet on the
> panama buildd
> machine which is also a rp3410.  They are much more common on phantom which is
> four way
> c8000 at 1 GHz.

My RP3410 is UP only, with UP kernel. When it happened, it was frequent 
- I got multiple segfaults in different compilations after that. Reboot 
into the same kernel cured it and after reboot I could build the same 
gcc successfully, and have been happily building gunch of gentoo 
updates since (more than a day).

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:39:58 2018
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From: Thomas Gleixner <tglx@linutronix.de>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 1/1] futex: remove duplicated code and fix UB
Date: Fri, 23 Jun 2017 09:51:23 +0200 (CEST)
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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To: Jiri Slaby <jslaby@suse.cz>
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On Wed, 21 Jun 2017, Jiri Slaby wrote:
> diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h
> index f32b42e8725d..5bb2fd4674e7 100644
> --- a/arch/arm64/include/asm/futex.h
> +++ b/arch/arm64/include/asm/futex.h
> @@ -48,20 +48,10 @@ do {									\
>  } while (0)
>  
>  static inline int
> -futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)

That unsigned int seems to be a change from the arm64 tree in next. It's
not upstream and it'll cause a (easy to resolve) conflict.

> +static int futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
> +{
> +	int op = (encoded_op >> 28) & 7;
> +	int cmp = (encoded_op >> 24) & 15;
> +	int oparg = (int)(encoded_op << 8) >> 20;
> +	int cmparg = (int)(encoded_op << 20) >> 20;

So this is really bad. We have implicit and explicit type casting to
int. And while we are at it can we please stop proliferating the existing
mess.

'op' and 'cmp' definitly can be unsigned int. There is no reason to cast
them to int.

oparg, cmparg and oldval are more interesting.

The logic here is "documented" in uapi/linux/futex.h

/* FUTEX_WAKE_OP will perform atomically
   int oldval = *(int *)UADDR2;
   *(int *)UADDR2 = oldval OP OPARG;
   if (oldval CMP CMPARG)
       wake UADDR2;  */

Now the FUTEX_OP macro which is supposed to compose the encoded_up does:

#define FUTEX_OP(op, oparg, cmp, cmparg) \
  (((op & 0xf) << 28) | ((cmp & 0xf) << 24)             \
   | ((oparg & 0xfff) << 12) | (cmparg & 0xfff))

Of course this all is not typed, undocumented and completely ill
defined.

> +	int oparg = (int)(encoded_op << 8) >> 20;
> +	int cmparg = (int)(encoded_op << 20) >> 20;

So in fact we sign expand the 12 bits of oparg and cmparg. Really
intuitive.

Yes, we probably can't change that anymore, but at least we should make it
very explicit and add a comment to that effect.

Thanks,

	tglx

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Subject: Debian hppa install media
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FYI,
Mike built a new installation media for Debian.
Helge

-------- Forwarded Message --------
Subject: 	Debian hppa install media
Date: 	Sun, 25 Jun 2017 14:37:59 +1200
From: 	Mike Hosken <mike@purple-cat.net>
To: 	debian-hppa@lists.debian.org

Hi team,

I have made new install media for Debian hppa sid the images can be found here. 

http://prometheus.parisc-linux.org/debian-cd/debian-9.0/debian-9.0r2/

Please read the readme file for a description of the different images. 

 http://prometheus.parisc-linux.org/debian-cd/debian-9.0/debian-9.0r2/readme.txt

I have tested the images over the last two weeks and have sorted out the bugs I have found, any useful feedback would be appreciated. 

Mike Hosken
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From - Thu Nov 08 21:39:58 2018
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From: Jiri Slaby <jslaby@suse.cz>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 1/1] futex: remove duplicated code and fix UB
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Cc: mingo@redhat.com, peterz@infradead.org, dvhart@infradead.org,
        linux-kernel@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
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        Marti
To: Thomas Gleixner <tglx@linutronix.de>,
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On 06/23/2017, 09:51 AM, Thomas Gleixner wrote:
> On Wed, 21 Jun 2017, Jiri Slaby wrote:
>> diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h
>> index f32b42e8725d..5bb2fd4674e7 100644
>> --- a/arch/arm64/include/asm/futex.h
>> +++ b/arch/arm64/include/asm/futex.h
>> @@ -48,20 +48,10 @@ do {									\
>>  } while (0)
>>  
>>  static inline int
>> -futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
> 
> That unsigned int seems to be a change from the arm64 tree in next. It's
> not upstream and it'll cause a (easy to resolve) conflict.

Ugh, I thought the arm64 is in upstream already. Note that this patch
just takes what is in this arm64 fix and makes it effective for all
architectures. So I will wait with v2 until it merges upstream.

So, Will, will you incorporate Thomas' comments into your arm64 fix?

...

> Yes, we probably can't change that anymore, but at least we should make it
> very explicit and add a comment to that effect.

Something like this or do you want a comment yet?
        unsigned int op =         (encoded_op & 0x70000000) >> 28;
        unsigned int cmp =        (encoded_op & 0x0f000000) >> 24;
        int oparg = sign_extend32((encoded_op & 0x00fff000) >> 12, 12);
        int cmparg = sign_extend32(encoded_op & 0x00000fff, 12);

thanks,
-- 
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suse labs
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From - Thu Nov 08 21:39:58 2018
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From: Will Deacon <will.deacon@arm.com>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 1/1] futex: remove duplicated code and fix UB
Date: Mon, 26 Jun 2017 13:08:14 +0100
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To: Jiri Slaby <jslaby@suse.cz>
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On Mon, Jun 26, 2017 at 02:02:31PM +0200, Jiri Slaby wrote:
> On 06/23/2017, 09:51 AM, Thomas Gleixner wrote:
> > On Wed, 21 Jun 2017, Jiri Slaby wrote:
> >> diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h
> >> index f32b42e8725d..5bb2fd4674e7 100644
> >> --- a/arch/arm64/include/asm/futex.h
> >> +++ b/arch/arm64/include/asm/futex.h
> >> @@ -48,20 +48,10 @@ do {									\
> >>  } while (0)
> >>  
> >>  static inline int
> >> -futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
> > 
> > That unsigned int seems to be a change from the arm64 tree in next. It's
> > not upstream and it'll cause a (easy to resolve) conflict.
> 
> Ugh, I thought the arm64 is in upstream already. Note that this patch
> just takes what is in this arm64 fix and makes it effective for all
> architectures. So I will wait with v2 until it merges upstream.
> 
> So, Will, will you incorporate Thomas' comments into your arm64 fix?

I wasn't planning to (it's already queued and I think they're just cosmetic
changes). The easiest thing is probably for you to make the changes in the
generic version when you post v2.

Will

From - Thu Nov 08 21:39:58 2018
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Hello, 

My name is Ms Julian Smith and i am from Sinara Group Co.
We are glad to know about your company from the web and we are interested in
your products.Please send us your Latest catalog and price list for our
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Subject: [PATCH RFC 20/26] parisc: Remove spin_unlock_wait() arch-specific definitions
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There is no agreed-upon definition of spin_unlock_wait()'s semantics,
and it appears that all callers could do just as well with a lock/unlock
pair.  This commit therefore removes the underlying arch-specific
arch_spin_unlock_wait().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: <linux-parisc@vger.kernel.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Andrea Parri <parri.andrea@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/parisc/include/asm/spinlock.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index e32936cd7f10..55bfe4affca3 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -14,13 +14,6 @@ static inline int arch_spin_is_locked(arch_spinlock_t *x)
 
 #define arch_spin_lock(lock) arch_spin_lock_flags(lock, 0)
 
-static inline void arch_spin_unlock_wait(arch_spinlock_t *x)
-{
-	volatile unsigned int *a = __ldcw_align(x);
-
-	smp_cond_load_acquire(a, VAL);
-}
-
 static inline void arch_spin_lock_flags(arch_spinlock_t *x,
 					 unsigned long flags)
 {
-- 
2.5.2

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From - Thu Nov 08 21:39:58 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH v2] mm: Fix overflow check in expand_upwards()
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Jrn Engel noticed that the expand_upwards() function might not return -ENOMEM
in case the requested address is (unsigned long)-PAGE_SIZE and if the
architecture didn't defined TASK_SIZE as multiple of PAGE_SIZE.

Affected architectures are arm, frv, m68k, blackfin, h8300 and xtensa which all
define TASK_SIZE as 0xffffffff, but since none of those have an upwards-growing
stack we currently have no actual issue.

Nevertheless let's fix this just in case any of the architectures with an
upward-growing stack (currently parisc, metag and partly ia64) define TASK_SIZE
similar.

Reported-by: Jrn Engel <joern@purestorage.com>
Fixes: bd726c90b6b8 ("Allow stack to grow up to address space limit")
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/mm/mmap.c b/mm/mmap.c
index a5e3dcd..cc2fc8a 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2232,7 +2232,7 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 
 	/* Guard against exceeding limits of the address space. */
 	address &= PAGE_MASK;
-	if (address >= TASK_SIZE)
+	if (address >= (TASK_SIZE & PAGE_MASK))
 		return -ENOMEM;
 	address += PAGE_SIZE;
 
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From - Thu Nov 08 21:39:59 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Report SIGSEGV instead of SIGBUS when running out of
 stack
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When a process runs out of stack the parisc kernel wrongly faults with SIGBUS
instead of the expected SIGSEGV signal.

This example shows how the kernel faults:
do_page_fault() command='a.out' type=15 address=0xfaac2000 in libc-2.24.so[f8308000+16c000]
trap #15: Data TLB miss fault, vm_start = 0xfa2c2000, vm_end = 0xfaac2000

The vma->vm_end value is the first address which does not belong to the vma, so
adjust the check to include vma->vm_end to the range for which to send the
SIGSEGV signal.

This patch unbreaks building the debian libsegv package.

Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 32ec221..9fd95fe 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -367,7 +367,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 		case 15:	/* Data TLB miss fault/Data page fault */
 			/* send SIGSEGV when outside of vma */
 			if (!vma ||
-			    address < vma->vm_start || address > vma->vm_end) {
+			    address < vma->vm_start || address >= vma->vm_end) {
 				si.si_signo = SIGSEGV;
 				si.si_code = SEGV_MAPERR;
 				break;
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From - Thu Nov 08 21:39:59 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: BUG: workqueue lockup (after powerdown)
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Today I tested 4.12 release on my RP3440 (HP parisc). It worked fine, 
then on shutdown I got this strange message from kernel after shutdown:

reboot: Power down
System shut down completed.
Please power this system off now.
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 40s!

and this continues with longer and longer times.

Is it something hppa specific or general?

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From - Thu Nov 08 21:39:59 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: Re: 4.12-rc5+: segfault while compiling, on rp3410
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> > I am using gentoo on my hppa machines and just tried
> > 4.12.0-rc5-00187-gab2789b at the end of last week. This time there
> > was new gcc release so a lot of work. rp3440 and A500 had no problems,
> > rp3410 errored out with SIGSEGV, twice.
> Helge and I have had a long discussion about these SEGVs.  They are
> essentially random.
> The are very rare on UP machines.  I don't think we have seen one yet on the
> panama buildd
> machine which is also a rp3410.  They are much more common on phantom which is
> four way
> c8000 at 1 GHz.

Whatever it it hitting me, it seems frequent on my UP rp3410. I am 
seeing it again.

-- 
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Xref: news.gmane.org gmane.linux.kernel:2515262 gmane.linux.ports.parisc:27529
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2515262>

Enabling parport pc driver on a B2600 (and probably other 64bit PARISC
systems) produced following BUG:

CPU: 0 PID: 1 Comm: swapper Not tainted 4.12.0-rc5-30198-g1132d5e #156
task: 000000009e050000 task.stack: 000000009e04c000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001111 Not tainted
r00-03  000000ff0806ff0f 000000009e04c990 0000000040871b78 000000009e04cac0
r04-07  0000000040c14de0 ffffffffffffffff 000000009e07f098 000000009d82d200
r08-11  000000009d82d210 0000000000000378 0000000000000000 0000000040c345e0
r12-15  0000000000000005 0000000040c345e0 0000000000000000 0000000040c9d5e0
r16-19  0000000040c345e0 00000000f00001c4 00000000f00001bc 0000000000000061
r20-23  000000009e04ce28 0000000000000010 0000000000000010 0000000040b89e40
r24-27  0000000000000003 0000000000ffffff 000000009d82d210 0000000040c14de0
r28-31  0000000000000000 000000009e04ca90 000000009e04cb40 0000000000000000
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000404aece0 00000000404aece4
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000001781304cac8
 CPU:        0   CR30: 000000009e04c000 CR31: 00000000e2976de2
 ORIG_R28: 0000000000000200
 IAOQ[0]: sba_dma_supported+0x80/0xd0
 IAOQ[1]: sba_dma_supported+0x84/0xd0
 RP(r2): parport_pc_probe_port+0x178/0x1200

Cause is a call to dma_coerce_mask_and_coherenet in parport_pc_probe_port,
which PARISC DMA API doesn't handle very nicely. This commit gives back
DMA_ERROR_CODE for DMA API calls, if device isn't capable of DMA
transaction.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---
 arch/parisc/include/asm/dma-mapping.h | 11 +++++++----
 drivers/parisc/ccio-dma.c             | 12 ++++++++++++
 drivers/parisc/dino.c                 |  5 ++++-
 drivers/parisc/lba_pci.c              |  6 ++++--
 drivers/parisc/sba_iommu.c            | 14 ++++++++++++++
 5 files changed, 41 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 5404c6a..9a2a895 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -20,6 +20,8 @@
 ** flush/purge and allocate "regular" cacheable pages for everything.
 */
 
+#define DMA_ERROR_CODE	(~(dma_addr_t)0)
+
 #ifdef CONFIG_PA11
 extern const struct dma_map_ops pcxl_dma_ops;
 extern const struct dma_map_ops pcx_dma_ops;
@@ -54,12 +56,13 @@ parisc_walk_tree(struct device *dev)
 			break;
 		}
 	}
-	BUG_ON(!dev->platform_data);
 	return dev->platform_data;
 }
-		
-#define GET_IOC(dev) (HBA_DATA(parisc_walk_tree(dev))->iommu)
-	
+
+#define GET_IOC(dev) ({					\
+	void *__pdata = parisc_walk_tree(dev);		\
+	__pdata ? HBA_DATA(__pdata)->iommu : NULL;	\
+})
 
 #ifdef CONFIG_IOMMU_CCIO
 struct parisc_device;
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index e32ca2e..56c93f0 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -741,6 +741,8 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
 
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return DMA_ERROR_CODE;
 
 	BUG_ON(size <= 0);
 
@@ -814,6 +816,10 @@ ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
 	
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
+	if (!ioc) {
+		WARN_ON(!ioc);
+		return;
+	}
 
 	DBG_RUN("%s() iovp 0x%lx/%x\n",
 		__func__, (long)iova, size);
@@ -918,6 +924,8 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return 0;
 	
 	DBG_RUN_SG("%s() START %d entries\n", __func__, nents);
 
@@ -990,6 +998,10 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
+	if (!ioc) {
+		WARN_ON(!ioc);
+		return;
+	}
 
 	DBG_RUN_SG("%s() START %d entries, %p,%x\n",
 		__func__, nents, sg_virt(sglist), sglist->length);
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 1133b5c..5c63b92 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -154,7 +154,10 @@ struct dino_device
 };
 
 /* Looks nice and keeps the compiler happy */
-#define DINO_DEV(d) ((struct dino_device *) d)
+#define DINO_DEV(d) ({				\
+	void *__pdata = d;			\
+	BUG_ON(!__pdata);			\
+	(struct dino_device *)__pdata; })
 
 
 /*
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 2ec2aef..bc286cb 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -111,8 +111,10 @@ static u32 lba_t32;
 
 
 /* Looks nice and keeps the compiler happy */
-#define LBA_DEV(d) ((struct lba_device *) (d))
-
+#define LBA_DEV(d) ({				\
+	void *__pdata = d;			\
+	BUG_ON(!__pdata);			\
+	(struct lba_device *)__pdata; })
 
 /*
 ** Only allow 8 subsidiary busses per LBA
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 33385e5..87ad5fd 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -691,6 +691,8 @@ static int sba_dma_supported( struct device *dev, u64 mask)
 		return 0;
 
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return 0;
 
 	/*
 	 * check if mask is >= than the current max IO Virt Address
@@ -722,6 +724,8 @@ sba_map_single(struct device *dev, void *addr, size_t size,
 	int pide;
 
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return DMA_ERROR_CODE;
 
 	/* save offset bits */
 	offset = ((dma_addr_t) (long) addr) & ~IOVP_MASK;
@@ -813,6 +817,10 @@ sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
 	DBG_RUN("%s() iovp 0x%lx/%x\n", __func__, (long) iova, size);
 
 	ioc = GET_IOC(dev);
+	if (!ioc) {
+		WARN_ON(!ioc);
+		return;
+	}
 	offset = iova & ~IOVP_MASK;
 	iova ^= offset;        /* clear offset bits */
 	size += offset;
@@ -952,6 +960,8 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	DBG_RUN_SG("%s() START %d entries\n", __func__, nents);
 
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return 0;
 
 	/* Fast path single entry scatterlists. */
 	if (nents == 1) {
@@ -1037,6 +1047,10 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 		__func__, nents, sg_virt(sglist), sglist->length);
 
 	ioc = GET_IOC(dev);
+	if (!ioc) {
+		WARN_ON(!ioc);
+		return;
+	}
 
 #ifdef SBA_COLLECT_STATS
 	ioc->usg_calls++;
-- 
2.1.4



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Subject: Re: [PATCH 1/1] futex: remove duplicated code and fix UB
Date: Mon, 3 Jul 2017 12:18:28 +0200 (CEST)
Lines: 58
Approved: news@gmane.org
Message-ID: <alpine.DEB.2.20.1707031211120.2188@nanos>
References: <20170621115318.2781-1-jslaby@suse.cz>
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, peterz@infradead.org,
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To: Jiri Slaby <jslaby@suse.cz>
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On Mon, 26 Jun 2017, Jiri Slaby wrote:
> On 06/23/2017, 09:51 AM, Thomas Gleixner wrote:
> > On Wed, 21 Jun 2017, Jiri Slaby wrote:
> >> diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h
> >> index f32b42e8725d..5bb2fd4674e7 100644
> >> --- a/arch/arm64/include/asm/futex.h
> >> +++ b/arch/arm64/include/asm/futex.h
> >> @@ -48,20 +48,10 @@ do {									\
> >>  } while (0)
> >>  
> >>  static inline int
> >> -futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
> > 
> > That unsigned int seems to be a change from the arm64 tree in next. It's
> > not upstream and it'll cause a (easy to resolve) conflict.
> 
> Ugh, I thought the arm64 is in upstream already. Note that this patch
> just takes what is in this arm64 fix and makes it effective for all
> architectures. So I will wait with v2 until it merges upstream.

Ok.

> > Yes, we probably can't change that anymore, but at least we should make it
> > very explicit and add a comment to that effect.
> 
> Something like this or do you want a comment yet?
>         unsigned int op =         (encoded_op & 0x70000000) >> 28;
>         unsigned int cmp =        (encoded_op & 0x0f000000) >> 24;
>         int oparg = sign_extend32((encoded_op & 0x00fff000) >> 12, 12);
>         int cmparg = sign_extend32(encoded_op & 0x00000fff, 12);

Yes, that makes sense.

There is also the issue with the shift. See this thread for further
reference:

  http://lkml.kernel.org/r/alpine.DEB.2.20.1706282353190.1890@nanos

The gist is:

  "Anything using a shift value < 0 or > 31 will get crap as a
   result. Rightfully so because it's just undefined.

   Yes I know that the insanity of user space is unlimited, but anything
   attempting this is so broken that we cannot break it further by making
   that shift arg unsigned and actually limit it to 0-31"

So we should make that case explicit as well.

        if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) {
		if (oparg < 0 || oparg > 31)
			return -EINVAL;
                oparg = 1 << oparg;
	}

Thanks,

	tglx

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Subject: Re: [PATCH] parisc: DMA API: return error instead of BUG_ON for dma
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On 03.07.2017 10:38, Thomas Bogendoerfer wrote:
> Enabling parport pc driver on a B2600 (and probably other 64bit PARISC
> systems) produced following BUG:
> 
> CPU: 0 PID: 1 Comm: swapper Not tainted 4.12.0-rc5-30198-g1132d5e #156
> task: 000000009e050000 task.stack: 000000009e04c000
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001101111111100001111 Not tainted
> r00-03  000000ff0806ff0f 000000009e04c990 0000000040871b78 000000009e04cac0
> r04-07  0000000040c14de0 ffffffffffffffff 000000009e07f098 000000009d82d200
> r08-11  000000009d82d210 0000000000000378 0000000000000000 0000000040c345e0
> r12-15  0000000000000005 0000000040c345e0 0000000000000000 0000000040c9d5e0
> r16-19  0000000040c345e0 00000000f00001c4 00000000f00001bc 0000000000000061
> r20-23  000000009e04ce28 0000000000000010 0000000000000010 0000000040b89e40
> r24-27  0000000000000003 0000000000ffffff 000000009d82d210 0000000040c14de0
> r28-31  0000000000000000 000000009e04ca90 000000009e04cb40 0000000000000000
> sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
> 
> IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000404aece0 00000000404aece4
>  IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000001781304cac8
>  CPU:        0   CR30: 000000009e04c000 CR31: 00000000e2976de2
>  ORIG_R28: 0000000000000200
>  IAOQ[0]: sba_dma_supported+0x80/0xd0
>  IAOQ[1]: sba_dma_supported+0x84/0xd0
>  RP(r2): parport_pc_probe_port+0x178/0x1200
> 
> Cause is a call to dma_coerce_mask_and_coherenet in parport_pc_probe_port,
> which PARISC DMA API doesn't handle very nicely. This commit gives back
> DMA_ERROR_CODE for DMA API calls, if device isn't capable of DMA
> transaction.
> 
> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

I didn't had parport_pc enabled on my c3000 so I never saw it crashing.
After enabling parport_pc it crashes the same way as you describe.
I tested with kernel 4.9.35.
Thanks!
 
Acked-by: Helge Deller <deller@gmx.de>



> ---
>  arch/parisc/include/asm/dma-mapping.h | 11 +++++++----
>  drivers/parisc/ccio-dma.c             | 12 ++++++++++++
>  drivers/parisc/dino.c                 |  5 ++++-
>  drivers/parisc/lba_pci.c              |  6 ++++--
>  drivers/parisc/sba_iommu.c            | 14 ++++++++++++++
>  5 files changed, 41 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
> index 5404c6a..9a2a895 100644
> --- a/arch/parisc/include/asm/dma-mapping.h
> +++ b/arch/parisc/include/asm/dma-mapping.h
> @@ -20,6 +20,8 @@
>  ** flush/purge and allocate "regular" cacheable pages for everything.
>  */
>  
> +#define DMA_ERROR_CODE	(~(dma_addr_t)0)
> +
>  #ifdef CONFIG_PA11
>  extern const struct dma_map_ops pcxl_dma_ops;
>  extern const struct dma_map_ops pcx_dma_ops;
> @@ -54,12 +56,13 @@ parisc_walk_tree(struct device *dev)
>  			break;
>  		}
>  	}
> -	BUG_ON(!dev->platform_data);
>  	return dev->platform_data;
>  }
> -		
> -#define GET_IOC(dev) (HBA_DATA(parisc_walk_tree(dev))->iommu)
> -	
> +
> +#define GET_IOC(dev) ({					\
> +	void *__pdata = parisc_walk_tree(dev);		\
> +	__pdata ? HBA_DATA(__pdata)->iommu : NULL;	\
> +})
>  
>  #ifdef CONFIG_IOMMU_CCIO
>  struct parisc_device;
> diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
> index e32ca2e..56c93f0 100644
> --- a/drivers/parisc/ccio-dma.c
> +++ b/drivers/parisc/ccio-dma.c
> @@ -741,6 +741,8 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
>  
>  	BUG_ON(!dev);
>  	ioc = GET_IOC(dev);
> +	if (!ioc)
> +		return DMA_ERROR_CODE;
>  
>  	BUG_ON(size <= 0);
>  
> @@ -814,6 +816,10 @@ ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
>  	
>  	BUG_ON(!dev);
>  	ioc = GET_IOC(dev);
> +	if (!ioc) {
> +		WARN_ON(!ioc);
> +		return;
> +	}
>  
>  	DBG_RUN("%s() iovp 0x%lx/%x\n",
>  		__func__, (long)iova, size);
> @@ -918,6 +924,8 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
>  	
>  	BUG_ON(!dev);
>  	ioc = GET_IOC(dev);
> +	if (!ioc)
> +		return 0;
>  	
>  	DBG_RUN_SG("%s() START %d entries\n", __func__, nents);
>  
> @@ -990,6 +998,10 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
>  
>  	BUG_ON(!dev);
>  	ioc = GET_IOC(dev);
> +	if (!ioc) {
> +		WARN_ON(!ioc);
> +		return;
> +	}
>  
>  	DBG_RUN_SG("%s() START %d entries, %p,%x\n",
>  		__func__, nents, sg_virt(sglist), sglist->length);
> diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
> index 1133b5c..5c63b92 100644
> --- a/drivers/parisc/dino.c
> +++ b/drivers/parisc/dino.c
> @@ -154,7 +154,10 @@ struct dino_device
>  };
>  
>  /* Looks nice and keeps the compiler happy */
> -#define DINO_DEV(d) ((struct dino_device *) d)
> +#define DINO_DEV(d) ({				\
> +	void *__pdata = d;			\
> +	BUG_ON(!__pdata);			\
> +	(struct dino_device *)__pdata; })
>  
>  
>  /*
> diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
> index 2ec2aef..bc286cb 100644
> --- a/drivers/parisc/lba_pci.c
> +++ b/drivers/parisc/lba_pci.c
> @@ -111,8 +111,10 @@ static u32 lba_t32;
>  
>  
>  /* Looks nice and keeps the compiler happy */
> -#define LBA_DEV(d) ((struct lba_device *) (d))
> -
> +#define LBA_DEV(d) ({				\
> +	void *__pdata = d;			\
> +	BUG_ON(!__pdata);			\
> +	(struct lba_device *)__pdata; })
>  
>  /*
>  ** Only allow 8 subsidiary busses per LBA
> diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
> index 33385e5..87ad5fd 100644
> --- a/drivers/parisc/sba_iommu.c
> +++ b/drivers/parisc/sba_iommu.c
> @@ -691,6 +691,8 @@ static int sba_dma_supported( struct device *dev, u64 mask)
>  		return 0;
>  
>  	ioc = GET_IOC(dev);
> +	if (!ioc)
> +		return 0;
>  
>  	/*
>  	 * check if mask is >= than the current max IO Virt Address
> @@ -722,6 +724,8 @@ sba_map_single(struct device *dev, void *addr, size_t size,
>  	int pide;
>  
>  	ioc = GET_IOC(dev);
> +	if (!ioc)
> +		return DMA_ERROR_CODE;
>  
>  	/* save offset bits */
>  	offset = ((dma_addr_t) (long) addr) & ~IOVP_MASK;
> @@ -813,6 +817,10 @@ sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
>  	DBG_RUN("%s() iovp 0x%lx/%x\n", __func__, (long) iova, size);
>  
>  	ioc = GET_IOC(dev);
> +	if (!ioc) {
> +		WARN_ON(!ioc);
> +		return;
> +	}
>  	offset = iova & ~IOVP_MASK;
>  	iova ^= offset;        /* clear offset bits */
>  	size += offset;
> @@ -952,6 +960,8 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
>  	DBG_RUN_SG("%s() START %d entries\n", __func__, nents);
>  
>  	ioc = GET_IOC(dev);
> +	if (!ioc)
> +		return 0;
>  
>  	/* Fast path single entry scatterlists. */
>  	if (nents == 1) {
> @@ -1037,6 +1047,10 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
>  		__func__, nents, sg_virt(sglist), sglist->length);
>  
>  	ioc = GET_IOC(dev);
> +	if (!ioc) {
> +		WARN_ON(!ioc);
> +		return;
> +	}
>  
>  #ifdef SBA_COLLECT_STATS
>  	ioc->usg_calls++;
> 



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On 03.07.2017 09:34, Meelis Roos wrote:
> Today I tested 4.12 release on my RP3440 (HP parisc). It worked fine, 
> then on shutdown I got this strange message from kernel after shutdown:
> 
> reboot: Power down
> System shut down completed.
> Please power this system off now.
> BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 40s!
> 
> and this continues with longer and longer times.
> 
> Is it something hppa specific or general?

No idea.
Maybe other platforms (like x86_64) physically drop power on machine 
so you won't see it. On parisc we can't power off on many machines,
so instead we will keep running in an endless for-next loop.

Btw, I'm seeing a similar BUG:

[  308.432664] reboot: Power down
[  308.479625] System shut down completed.
[  308.479625] Please power this system off now.
[  332.523916] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [halt:1807]
[  332.523916] Modules linked in:
[  332.523916] CPU: 0 PID: 1807 Comm: halt Not tainted 4.12.0-64bit+ #724
[  332.523916] task: 00000000af379e00 task.stack: 00000000af00c000
[  332.523916] 
[  332.523916] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004022d180 000000004022d17c
[  332.523916]  IIR: 08030241    ISR: 0000000000000000  IOR: 0000000000000000
[  332.523916]  CPU:        0   CR30: 00000000af00c000 CR31: 00000000d23345e2
[  332.523916]  ORIG_R28: 0000000000000000
[  332.523916]  IAOQ[0]: machine_restart+0x0/0xa0
[  332.523916]  IAOQ[1]: machine_power_off+0x104/0x108
[  332.523916]  RP(r2): machine_power_off+0x104/0x108
[  332.523916] Backtrace:
[  332.523916]  [<000000004022d17c>] machine_power_off+0x104/0x108
[  332.523916]  [<000000004028ff3c>] kernel_power_off+0x1ac/0x1c0
[  332.523916]  [<00000000402902a8>] SyS_reboot+0x250/0x340
[  332.523916]  [<0000000040209020>] syscall_exit+0x0/0x14

Helge


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Hi Linus,

please pull fixes and enhancements for the parisc architecture for kernel 4.13-rc1 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.13-1

Main changes are:

- Added support to the parisc dma functions to return DMA_ERROR_CODE if DMA
  isn't possible. This fixes a long standing kernel crash if parport_pc is
  enabled (by Thomas Bogendoerfer, marked for stable series).

- Use the compat_sys_keyctl() in compat mode (by Eric Biggers, marked for stable
  series).
 
- Initial support for the Page Deallocation Table (PDT) which is maintained by
  firmware and holds the list of memory addresses which had physical errors.
  By checking that list we can prevent Linux to use those broken memory areas.

- Ensure IRQs are off in switch_mm().

- Report SIGSEGV instead of SIGBUS when running out of stack.

- Mark the cr16 clocksource stable on single-socket and single-core machines.

Thanks,
Helge

----------------------------------------------------------------
Eric Biggers (1):
      parisc: use compat_sys_keyctl()

Helge Deller (9):
      parisc: Inline trivial exception code in lusercopy.S
      parisc: Drop per_cpu uaccess related exception_data struct
      parisc: Enhance detection of synchronous cr16 clocksources
      parisc: Add Page Deallocation Table (PDT) support
      parisc/mm: Ensure IRQs are off in switch_mm()
      parisc: Avoid zeroing gr[0] in fixup_exception()
      parisc: Don't hardcode PSW values in gsc_*() functions
      parisc: Don't hardcode PSW values in hpmc code
      parisc: Report SIGSEGV instead of SIGBUS when running out of stack

Thomas Bogendoerfer (1):
      parisc: DMA API: return error instead of BUG_ON for dma ops on non dma devs

 arch/parisc/include/asm/dma-mapping.h |  11 ++-
 arch/parisc/include/asm/io.h          |  16 ++--
 arch/parisc/include/asm/mmu_context.h |  15 +++-
 arch/parisc/include/asm/pdc.h         |  18 +++++
 arch/parisc/include/asm/pdcpat.h      |  35 ++++++---
 arch/parisc/include/asm/pgtable.h     |   3 +
 arch/parisc/include/asm/processor.h   |   2 +
 arch/parisc/include/asm/uaccess.h     |  11 ---
 arch/parisc/include/uapi/asm/pdc.h    |  12 +--
 arch/parisc/kernel/Makefile           |   2 +-
 arch/parisc/kernel/asm-offsets.c      |   5 --
 arch/parisc/kernel/firmware.c         | 108 +++++++++++++++++++++++++
 arch/parisc/kernel/hpmc.S             |   5 +-
 arch/parisc/kernel/inventory.c        |   9 +++
 arch/parisc/kernel/pdt.c              | 143 ++++++++++++++++++++++++++++++++++
 arch/parisc/kernel/processor.c        |   5 +-
 arch/parisc/kernel/syscall_table.S    |   2 +-
 arch/parisc/kernel/time.c             |  24 +++++-
 arch/parisc/lib/lusercopy.S           |  25 +++---
 arch/parisc/mm/fault.c                |  12 +--
 arch/parisc/mm/init.c                 |   3 +
 drivers/parisc/ccio-dma.c             |  12 +++
 drivers/parisc/dino.c                 |   5 +-
 drivers/parisc/lba_pci.c              |   6 +-
 drivers/parisc/sba_iommu.c            |  14 ++++
 25 files changed, 420 insertions(+), 83 deletions(-)
 create mode 100644 arch/parisc/kernel/pdt.c
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From - Thu Nov 08 21:39:59 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.sparc
Subject: Re: [PATCH v3 0/3] Define CPU_BIG_ENDIAN or warn for inconsistencies
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Cc: Yoshinori Sato <ysato@users.sourceforge.jp>,
        Jonas Bonn <jonas@southpole.se>,
        Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
        Stafford Horne <shorne@gmail.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        "David S. Miller" <davem@davemloft.net>,
        Al Viro <viro@zeniv.linux.org.uk>,
        Michal Simek <monstr@monstr.eu>,
        Michael Ellerman <mpe@ellerman.id.au>,
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To: Babu Moger <babu.moger@oracle.com>
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On Tue, Jun 13, 2017 at 12:09 AM, Babu Moger <babu.moger@oracle.com> wrote:
> Found this problem while enabling queued rwlock on SPARC.
> The parameter CONFIG_CPU_BIG_ENDIAN is used to clear the
> specific byte in qrwlock structure. Without this parameter,
> we clear the wrong byte.
> Here is the code in include/asm-generic/qrwlock.h
>
> static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
>   {
>          return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
>   }
>
> Also found few more references of this parameter in
> drivers/of/base.c
> drivers/of/fdt.c
> drivers/tty/serial/earlycon.c
> drivers/tty/serial/serial_core.c
>
> Here is our previous discussion.
> https://lkml.org/lkml/2017/5/24/620
>
> Based on the discussion, it was decided to add CONFIG_CPU_BIG_ENDIAN
> for all the fixed big endian architecture(frv, h8300, m68k, openrisc,
> parisc and sparc). And warn if there are inconsistencies in this definition.
>
> v2 -> v3:
>  Added the choice statement for endianness selection for microblaze.
>  Updated the Makefile for microblaze(Suggested by Arnd Bergmann) to
>  properly compile for the correct format.
>  Updated acks.
>
> v1 -> v2:
>  Updated the commit messages and acks.
>
> Babu Moger (3):
>   arch: Define CPU_BIG_ENDIAN for all fixed big endian archs
>   arch/microblaze: Add choice for endianness and update Makefile
>   include: warn for inconsistent endian config definition
>
>  arch/frv/Kconfig                        |    3 +++
>  arch/h8300/Kconfig                      |    3 +++
>  arch/m68k/Kconfig                       |    3 +++
>  arch/microblaze/Kconfig                 |   16 ++++++++++++++++
>  arch/microblaze/Makefile                |    2 ++
>  arch/openrisc/Kconfig                   |    3 +++
>  arch/parisc/Kconfig                     |    3 +++
>  arch/sparc/Kconfig                      |    3 +++
>  include/linux/byteorder/big_endian.h    |    4 ++++
>  include/linux/byteorder/little_endian.h |    4 ++++
>  10 files changed, 44 insertions(+), 0 deletions(-)

We've just got a new user in c1b0bc2dabfa884d ("usb: typec:
Add support for UCSI interface").
So this series should definitely go in soon.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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From - Thu Nov 08 21:39:59 2018
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From: Christoph Hellwig <hch@infradead.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: Re: [PATCH] parisc: DMA API: return error instead of BUG_ON for dma
 ops on non dma devs
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I've got a tree pending that removes DMA_ERROR_CODE, and it's been
in linux-next for a while.

While this won't compile-time conflict with this patch and will
basically revert the effect.

Can you please test the patch below and send it to Linus ASAP so that
I can send the pull request for the dma-mapping tree?

---
>From 85942d54e2f0ad5f4b4e074ce2e271be17b31274 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 4 Jul 2017 19:55:06 -0700
Subject: parisc: ->mapping_error

DMA_ERROR_CODE already went away in linux-next, but parisc unfortunately
added a new instance of it without any review as far as I can tell.

Move the two iommu drivers to report errors through ->mapping_error.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/parisc/include/asm/dma-mapping.h |  2 --
 drivers/parisc/ccio-dma.c             | 10 +++++++++-
 drivers/parisc/sba_iommu.c            | 10 +++++++++-
 3 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 9a2a8956a695..2b16282add69 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -20,8 +20,6 @@
 ** flush/purge and allocate "regular" cacheable pages for everything.
 */
 
-#define DMA_ERROR_CODE	(~(dma_addr_t)0)
-
 #ifdef CONFIG_PA11
 extern const struct dma_map_ops pcxl_dma_ops;
 extern const struct dma_map_ops pcx_dma_ops;
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 56c93f096de9..6aa1e7f6672f 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -110,6 +110,8 @@
 #define CMD_TLB_DIRECT_WRITE 35         /* IO_COMMAND for I/O TLB Writes     */
 #define CMD_TLB_PURGE        33         /* IO_COMMAND to Purge I/O TLB entry */
 
+#define CCIO_MAPPING_ERROR    (~(dma_addr_t)0)
+
 struct ioa_registers {
         /* Runway Supervisory Set */
         int32_t    unused1[12];
@@ -742,7 +744,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
 	if (!ioc)
-		return DMA_ERROR_CODE;
+		return CCIO_MAPPING_ERROR;
 
 	BUG_ON(size <= 0);
 
@@ -1023,6 +1025,11 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
 }
 
+static int ccio_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+	return dma_addr == CCIO_MAPPING_ERROR;
+}
+
 static const struct dma_map_ops ccio_ops = {
 	.dma_supported =	ccio_dma_supported,
 	.alloc =		ccio_alloc,
@@ -1031,6 +1038,7 @@ static const struct dma_map_ops ccio_ops = {
 	.unmap_page =		ccio_unmap_page,
 	.map_sg = 		ccio_map_sg,
 	.unmap_sg = 		ccio_unmap_sg,
+	.mapping_error =	ccio_mapping_error,
 };
 
 #ifdef CONFIG_PROC_FS
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 87ad5fd6a7a2..4086f79d58d5 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -93,6 +93,8 @@
 
 #define DEFAULT_DMA_HINT_REG	0
 
+#define SBA_MAPPING_ERROR    (~(dma_addr_t)0)
+
 struct sba_device *sba_list;
 EXPORT_SYMBOL_GPL(sba_list);
 
@@ -725,7 +727,7 @@ sba_map_single(struct device *dev, void *addr, size_t size,
 
 	ioc = GET_IOC(dev);
 	if (!ioc)
-		return DMA_ERROR_CODE;
+		return SBA_MAPPING_ERROR;
 
 	/* save offset bits */
 	offset = ((dma_addr_t) (long) addr) & ~IOVP_MASK;
@@ -1083,6 +1085,11 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 
 }
 
+static int sba_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+	return dma_addr == SBA_MAPPING_ERROR;
+}
+
 static const struct dma_map_ops sba_ops = {
 	.dma_supported =	sba_dma_supported,
 	.alloc =		sba_alloc,
@@ -1091,6 +1098,7 @@ static const struct dma_map_ops sba_ops = {
 	.unmap_page =		sba_unmap_page,
 	.map_sg =		sba_map_sg,
 	.unmap_sg =		sba_unmap_sg,
+	.mapping_error =	sba_mapping_error,
 };
 
 
-- 
2.11.0

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Subject: Re: [PATCH] parisc: DMA API: return error instead of BUG_ON for dma
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Hi Christoph,

On 05.07.2017 20:57, Christoph Hellwig wrote:
> I've got a tree pending that removes DMA_ERROR_CODE, and it's been
> in linux-next for a while.

I had the parisc patch in for-next as well and didn't received
any warnings.
 
> While this won't compile-time conflict with this patch and will
> basically revert the effect.
> 
> Can you please test the patch below and send it to Linus ASAP so that
> I can send the pull request for the dma-mapping tree?

I'll do that now.


> ---
> From 85942d54e2f0ad5f4b4e074ce2e271be17b31274 Mon Sep 17 00:00:00 2001
> From: Christoph Hellwig <hch@lst.de>
> Date: Tue, 4 Jul 2017 19:55:06 -0700
> Subject: parisc: ->mapping_error
> 
> DMA_ERROR_CODE already went away in linux-next, but parisc unfortunately
> added a new instance of it without any review as far as I can tell.

Can we please change this to something like 
"Prepare parisc to get rid of DMA_ERROR_CODE tree-wide" ?
It's somewhat more neutral.

Helge

> 
> Move the two iommu drivers to report errors through ->mapping_error.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  arch/parisc/include/asm/dma-mapping.h |  2 --
>  drivers/parisc/ccio-dma.c             | 10 +++++++++-
>  drivers/parisc/sba_iommu.c            | 10 +++++++++-
>  3 files changed, 18 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
> index 9a2a8956a695..2b16282add69 100644
> --- a/arch/parisc/include/asm/dma-mapping.h
> +++ b/arch/parisc/include/asm/dma-mapping.h
> @@ -20,8 +20,6 @@
>  ** flush/purge and allocate "regular" cacheable pages for everything.
>  */
>  
> -#define DMA_ERROR_CODE	(~(dma_addr_t)0)
> -
>  #ifdef CONFIG_PA11
>  extern const struct dma_map_ops pcxl_dma_ops;
>  extern const struct dma_map_ops pcx_dma_ops;
> diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
> index 56c93f096de9..6aa1e7f6672f 100644
> --- a/drivers/parisc/ccio-dma.c
> +++ b/drivers/parisc/ccio-dma.c
> @@ -110,6 +110,8 @@
>  #define CMD_TLB_DIRECT_WRITE 35         /* IO_COMMAND for I/O TLB Writes     */
>  #define CMD_TLB_PURGE        33         /* IO_COMMAND to Purge I/O TLB entry */
>  
> +#define CCIO_MAPPING_ERROR    (~(dma_addr_t)0)
> +
>  struct ioa_registers {
>          /* Runway Supervisory Set */
>          int32_t    unused1[12];
> @@ -742,7 +744,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
>  	BUG_ON(!dev);
>  	ioc = GET_IOC(dev);
>  	if (!ioc)
> -		return DMA_ERROR_CODE;
> +		return CCIO_MAPPING_ERROR;
>  
>  	BUG_ON(size <= 0);
>  
> @@ -1023,6 +1025,11 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
>  	DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
>  }
>  
> +static int ccio_mapping_error(struct device *dev, dma_addr_t dma_addr)
> +{
> +	return dma_addr == CCIO_MAPPING_ERROR;
> +}
> +
>  static const struct dma_map_ops ccio_ops = {
>  	.dma_supported =	ccio_dma_supported,
>  	.alloc =		ccio_alloc,
> @@ -1031,6 +1038,7 @@ static const struct dma_map_ops ccio_ops = {
>  	.unmap_page =		ccio_unmap_page,
>  	.map_sg = 		ccio_map_sg,
>  	.unmap_sg = 		ccio_unmap_sg,
> +	.mapping_error =	ccio_mapping_error,
>  };
>  
>  #ifdef CONFIG_PROC_FS
> diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
> index 87ad5fd6a7a2..4086f79d58d5 100644
> --- a/drivers/parisc/sba_iommu.c
> +++ b/drivers/parisc/sba_iommu.c
> @@ -93,6 +93,8 @@
>  
>  #define DEFAULT_DMA_HINT_REG	0
>  
> +#define SBA_MAPPING_ERROR    (~(dma_addr_t)0)
> +
>  struct sba_device *sba_list;
>  EXPORT_SYMBOL_GPL(sba_list);
>  
> @@ -725,7 +727,7 @@ sba_map_single(struct device *dev, void *addr, size_t size,
>  
>  	ioc = GET_IOC(dev);
>  	if (!ioc)
> -		return DMA_ERROR_CODE;
> +		return SBA_MAPPING_ERROR;
>  
>  	/* save offset bits */
>  	offset = ((dma_addr_t) (long) addr) & ~IOVP_MASK;
> @@ -1083,6 +1085,11 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
>  
>  }
>  
> +static int sba_mapping_error(struct device *dev, dma_addr_t dma_addr)
> +{
> +	return dma_addr == SBA_MAPPING_ERROR;
> +}
> +
>  static const struct dma_map_ops sba_ops = {
>  	.dma_supported =	sba_dma_supported,
>  	.alloc =		sba_alloc,
> @@ -1091,6 +1098,7 @@ static const struct dma_map_ops sba_ops = {
>  	.unmap_page =		sba_unmap_page,
>  	.map_sg =		sba_map_sg,
>  	.unmap_sg =		sba_unmap_sg,
> +	.mapping_error =	sba_mapping_error,
>  };
>  
>  
> 

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Hi Linus,

Christoph Hellwig provided one patch for the parisc architecture to drop the
DMA_ERROR_CODE define from the parisc architecture.
He asked me to test it and send it to you ASAP so that he can send the pull
request for the dma-mapping tree.

That said, can you please pull it from
  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.13-1
before you pull Christophs dma-mapping tree ?

Changes:
- Drop DMA_ERROR_CODE and convert to ->mapping_error (by Christoph Hellwig)

Thanks,
Helge

----------------------------------------------------------------
Christoph Hellwig (1):
      parisc: ->mapping_error

 arch/parisc/include/asm/dma-mapping.h |  2 --
 drivers/parisc/ccio-dma.c             | 10 +++++++++-
 drivers/parisc/sba_iommu.c            | 10 +++++++++-
 3 files changed, 18 insertions(+), 4 deletions(-)
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On Wed, Jul 05, 2017 at 10:28:54PM +0200, Helge Deller wrote:
> That said, can you please pull it from
>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.13-1
> before you pull Christophs dma-mapping tree ?

I've not send the pull request for that yet, I plan to do so once this
commit made it in.
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Subject: Re: [PATCH] parisc: DMA API: return error instead of BUG_ON for dma
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On Wed, Jul 05, 2017 at 09:36:09PM +0200, Helge Deller wrote:
> On 05.07.2017 20:57, Christoph Hellwig wrote:
> > I've got a tree pending that removes DMA_ERROR_CODE, and it's been
> > in linux-next for a while.
> 
> I had the parisc patch in for-next as well and didn't received
> any warnings.

There are no warnings, as the macro just won't be used by common code
anymore.

But the commit is from July 3rd, and the pull request to Linus for
it was merged on the same day.  I can't see how it could have been
in linux-next for long.  It certainly wasn't in the last linux-next
release that I looked at before the long weekend (the July 30 one)

> Can we please change this to something like 
> "Prepare parisc to get rid of DMA_ERROR_CODE tree-wide" ?
> It's somewhat more neutral.

Fine with me.
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On 05.07.2017 22:33, Christoph Hellwig wrote:
> On Wed, Jul 05, 2017 at 09:36:09PM +0200, Helge Deller wrote:
>> On 05.07.2017 20:57, Christoph Hellwig wrote:
>>> I've got a tree pending that removes DMA_ERROR_CODE, and it's been
>>> in linux-next for a while.
>>
>> I had the parisc patch in for-next as well and didn't received
>> any warnings.
> 
> There are no warnings, as the macro just won't be used by common code
> anymore.

And that's the reason why I didn't checked.
The generic DMA_ERROR_CODE has been there since 3.13 (or something
like that), so I don't think anybody would have assumed that it's
planned to vanish.
On the other side the patch fixed a real kernel crash on parisc,
and the patch applies as-is down to 3.13.
With that in mind, technically it's good that the parisc patch went in 
before yours.

> But the commit is from July 3rd, and the pull request to Linus for
> it was merged on the same day.  I can't see how it could have been
> in linux-next for long.  It certainly wasn't in the last linux-next
> release that I looked at before the long weekend (the July 30 one)

True.
Anyway, let's get your patch in now.

>> Can we please change this to something like 
>> "Prepare parisc to get rid of DMA_ERROR_CODE tree-wide" ?
>> It's somewhat more neutral.
> 
> Fine with me.

I did not changed it.

Helge


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On Wed, Jul 5, 2017 at 1:28 PM, Helge Deller <deller@gmx.de> wrote:
>
> That said, can you please pull it from
>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.13-1
> before you pull Christophs dma-mapping tree ?
>
> Changes:
> - Drop DMA_ERROR_CODE and convert to ->mapping_error (by Christoph Hellwig)

There are no such changes there.

Did you perhaps mean 'parisc-4.13-2' instead?

                Linus
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On Wed, Jul 5, 2017 at 5:41 PM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
> On Wed, Jul 5, 2017 at 1:28 PM, Helge Deller <deller@gmx.de> wrote:
>>
>>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.13-1
>
> Did you perhaps mean 'parisc-4.13-2' instead?

Yeah, that branch seems to match what you describe, the -1 branch
hasn't changed since you asked me to pull it earlier.

               Linus


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Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v3 0/3] Define CPU_BIG_ENDIAN or warn for inconsistencies
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Resending the series per Greg KH's request.

Found this problem while enabling queued rwlock on SPARC.
The parameter CONFIG_CPU_BIG_ENDIAN is used to clear the
specific byte in qrwlock structure. Without this parameter,
we clear the wrong byte.
Here is the code in include/asm-generic/qrwlock.h

static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
  {
         return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
  }

Also found few more references of this parameter in
drivers/of/base.c
drivers/of/fdt.c
drivers/tty/serial/earlycon.c
drivers/tty/serial/serial_core.c

Here is our previous discussion.
https://lkml.org/lkml/2017/5/24/620

Based on the discussion, it was decided to add CONFIG_CPU_BIG_ENDIAN
for all the fixed big endian architecture(frv, h8300, m68k, openrisc,
parisc and sparc). And warn if there are inconsistencies in this definition.

v2 -> v3:
 Added the choice statement for endianness selection for microblaze.
 Updated the Makefile for microblaze(Suggested by Arnd Bergmann) to
 properly compile for the correct format.
 Updated acks.

v1 -> v2:
 Updated the commit messages and acks.

Babu Moger (3):
  arch: Define CPU_BIG_ENDIAN for all fixed big endian archs
  arch/microblaze: Add choice for endianness and update Makefile
  include: warn for inconsistent endian config definition

 arch/frv/Kconfig                        |    3 +++
 arch/h8300/Kconfig                      |    3 +++
 arch/m68k/Kconfig                       |    3 +++
 arch/microblaze/Kconfig                 |   16 ++++++++++++++++
 arch/microblaze/Makefile                |    2 ++
 arch/openrisc/Kconfig                   |    3 +++
 arch/parisc/Kconfig                     |    3 +++
 arch/sparc/Kconfig                      |    3 +++
 include/linux/byteorder/big_endian.h    |    4 ++++
 include/linux/byteorder/little_endian.h |    4 ++++
 10 files changed, 44 insertions(+), 0 deletions(-)


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We have seen some generic code use config parameter CONFIG_CPU_BIG_ENDIAN
to decide the endianness.

Here are the few examples.
include/asm-generic/qrwlock.h
drivers/of/base.c
drivers/of/fdt.c
drivers/tty/serial/earlycon.c
drivers/tty/serial/serial_core.c

Display warning if CPU_BIG_ENDIAN is not defined on big endian
architecture and also warn if it defined on little endian architectures.

Here is our original discussion
https://lkml.org/lkml/2017/5/24/620

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 include/linux/byteorder/big_endian.h    |    4 ++++
 include/linux/byteorder/little_endian.h |    4 ++++
 2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/include/linux/byteorder/big_endian.h b/include/linux/byteorder/big_endian.h
index 3920414..ffd2159 100644
--- a/include/linux/byteorder/big_endian.h
+++ b/include/linux/byteorder/big_endian.h
@@ -3,5 +3,9 @@
 
 #include <uapi/linux/byteorder/big_endian.h>
 
+#ifndef CONFIG_CPU_BIG_ENDIAN
+#warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
+#endif
+
 #include <linux/byteorder/generic.h>
 #endif /* _LINUX_BYTEORDER_BIG_ENDIAN_H */
diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h
index 0805737..ba910bb 100644
--- a/include/linux/byteorder/little_endian.h
+++ b/include/linux/byteorder/little_endian.h
@@ -3,5 +3,9 @@
 
 #include <uapi/linux/byteorder/little_endian.h>
 
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#warning inconsistent configuration, CONFIG_CPU_BIG_ENDIAN is set
+#endif
+
 #include <linux/byteorder/generic.h>
 #endif /* _LINUX_BYTEORDER_LITTLE_ENDIAN_H */
-- 
1.7.1



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microblaze architectures can be configured for either little or
big endian formats. Add a choice option for the user to select the
correct endian format(default to big endian).

Also update the Makefile so toolchain can compile for the format
it is configured for.

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/microblaze/Kconfig  |   16 ++++++++++++++++
 arch/microblaze/Makefile |    2 ++
 2 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 85885a5..74aa5de 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -35,6 +35,22 @@ config MICROBLAZE
 	select VIRT_TO_BUS
 	select CPU_NO_EFFICIENT_FFS
 
+# Endianness selection
+choice
+	prompt "Endianness selection"
+	default CPU_BIG_ENDIAN
+	help
+	  microblaze architectures can be configured for either little or
+	  big endian formats. Be sure to select the appropriate mode.
+
+config CPU_BIG_ENDIAN
+	bool "Big endian"
+
+config CPU_LITTLE_ENDIAN
+	bool "Little endian"
+
+endchoice
+
 config SWAP
 	def_bool n
 
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
index 740f2b8..1f6c486 100644
--- a/arch/microblaze/Makefile
+++ b/arch/microblaze/Makefile
@@ -35,6 +35,8 @@ endif
 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
+CPUFLAGS-$(CONFIG_BIG_ENDIAN) += -mbig-endian
+CPUFLAGS-$(CONFIG_LITTLE_ENDIAN) += -mlittle-endian
 
 CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
 
-- 
1.7.1



From - Thu Nov 08 21:40:00 2018
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X-Mozilla-Keys:                                                                                 
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From: Babu Moger <babu.moger@oracle.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: [PATCH v3 1/3] arch: Define CPU_BIG_ENDIAN for all fixed big endian archs
Date: Thu,  6 Jul 2017 09:34:19 -0700
Lines: 127
Approved: news@gmane.org
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Cc: mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com,
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While working on enabling queued rwlock on SPARC, found
this following code in include/asm-generic/qrwlock.h
which uses CONFIG_CPU_BIG_ENDIAN to clear a byte.

static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
 {
	return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
 }

Problem is many of the fixed big endian architectures don't define
CPU_BIG_ENDIAN and clears the wrong byte.

Define CPU_BIG_ENDIAN for all the fixed big endian architecture to fix it.

Also found few more references of this config parameter in
drivers/of/base.c
drivers/of/fdt.c
drivers/tty/serial/earlycon.c
drivers/tty/serial/serial_core.c
Be aware that this may cause regressions if someone has worked-around
problems in the above code already. Remove the work-around.

Here is our original discussion
https://lkml.org/lkml/2017/5/24/620

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Stafford Horne <shorne@gmail.com>
---
 arch/frv/Kconfig      |    3 +++
 arch/h8300/Kconfig    |    3 +++
 arch/m68k/Kconfig     |    3 +++
 arch/openrisc/Kconfig |    3 +++
 arch/parisc/Kconfig   |    3 +++
 arch/sparc/Kconfig    |    3 +++
 6 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index eefd9a4..1cce824 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -17,6 +17,9 @@ config FRV
 	select HAVE_DEBUG_STACKOVERFLOW
 	select ARCH_NO_COHERENT_DMA_MMAP
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config ZONE_DMA
 	bool
 	default y
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 3ae8525..5380ac8 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -23,6 +23,9 @@ config H8300
 	select HAVE_ARCH_HASH
 	select CPU_NO_EFFICIENT_FFS
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index d140206..029a58b 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -23,6 +23,9 @@ config M68K
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config RWSEM_GENERIC_SPINLOCK
 	bool
 	default y
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 1e95920..a0f2e4a 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -29,6 +29,9 @@ config OPENRISC
 	select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1
 	select NO_BOOTMEM
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config MMU
 	def_bool y
 
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 531da9e..dda1f55 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -47,6 +47,9 @@ config PARISC
 	  and later HP3000 series).  The PA-RISC Linux project home page is
 	  at <http://www.parisc-linux.org/>.
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config MMU
 	def_bool y
 
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 908f019..0d9dc49 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -92,6 +92,9 @@ config ARCH_DEFCONFIG
 config ARCH_PROC_KCORE_TEXT
 	def_bool y
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config ARCH_ATU
 	bool
 	default y if SPARC64
-- 
1.7.1



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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Disable further stack checks when panic occurs
 during stack check
Date: Sat, 8 Jul 2017 23:25:14 +0200
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Before the irq handler detects a low stack and then panics the kernel, disable
further stack checks to avoid recursive panics.

Reported-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index ba5e1c7..5404e40 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -413,6 +413,10 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 	if (regs->sr[7])
 		return;
 
+	/* exit if already in panic */
+	if (sysctl_panic_on_stackoverflow < 0)
+		return;
+
 	/* calculate kernel stack usage */
 	stack_usage = sp - stack_start;
 #ifdef CONFIG_IRQSTACKS
@@ -454,8 +458,10 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 #ifdef CONFIG_IRQSTACKS
 panic_check:
 #endif
-	if (sysctl_panic_on_stackoverflow)
+	if (sysctl_panic_on_stackoverflow) {
+		sysctl_panic_on_stackoverflow = -1; /* disable further checks */
 		panic("low stack detected by irq handler - check messages\n");
+	}
 #endif
 }
 
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Merge millicode routines via linker script
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When compiling the 4.13-rc kernel I got those linker errors:
libgcc2.c:(.text+0x110): relocation truncated to fit: R_PARISC_PCREL22F against symbol `$$divU'
	defined in .text.div section in /usr/lib/gcc/hppa64-linux-gnu/4.9.2/libgcc.a(_divU.o)
hppa64-linux-gnu-ld: /usr/lib/gcc/hppa64-linux-gnu/4.9.2/libgcc.a(_moddi3.o)(.text+0x174): cannot reach $$divU

Avoid such errors by bundling the millicode routines in the linker script.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 3d6ef1b..ffe2cbf 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -78,6 +78,8 @@ SECTIONS
 		*(.text.sys_exit)
 		*(.text.do_sigaltstack)
 		*(.text.do_fork)
+		*(.text.div)
+		*($$*)			/* millicode routines */
 		*(.text.*)
 		*(.fixup)
 		*(.lock.text)		/* out-of-line lock text */
--
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From - Thu Nov 08 21:40:00 2018
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From: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH] tty: Fix TIOCGPTPEER ioctl definition
Date: Tue, 11 Jul 2017 03:12:17 +0300
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Cc: Jiri Slaby <jslaby@suse.com>, Arnd Bergmann <arnd@arndb.de>,
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To: Aleksa Sarai <asarai@suse.de>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/38228>

This ioctl does nothing to justify an _IOC_READ or _IOC_WRITE flag
because it doesn't copy anything from/to userspace to access the
argument.

Fixes: 54ebbfb1 ("tty: add TIOCGPTPEER ioctl")
Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>
---
 arch/alpha/include/uapi/asm/ioctls.h   | 2 +-
 arch/mips/include/uapi/asm/ioctls.h    | 2 +-
 arch/parisc/include/uapi/asm/ioctls.h  | 2 +-
 arch/powerpc/include/uapi/asm/ioctls.h | 2 +-
 arch/sh/include/uapi/asm/ioctls.h      | 2 +-
 arch/sparc/include/uapi/asm/ioctls.h   | 2 +-
 arch/xtensa/include/uapi/asm/ioctls.h  | 2 +-
 include/uapi/asm-generic/ioctls.h      | 2 +-
 8 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
index ff67b837..1cd7dc7 100644
--- a/arch/alpha/include/uapi/asm/ioctls.h
+++ b/arch/alpha/include/uapi/asm/ioctls.h
@@ -100,7 +100,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/mips/include/uapi/asm/ioctls.h b/arch/mips/include/uapi/asm/ioctls.h
index 68e19b6..1609cb0 100644
--- a/arch/mips/include/uapi/asm/ioctls.h
+++ b/arch/mips/include/uapi/asm/ioctls.h
@@ -91,7 +91,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 /* I hope the range from 0x5480 on is free ... */
 #define TIOCSCTTY	0x5480		/* become controlling tty */
diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
index 674c68a..d0e3321 100644
--- a/arch/parisc/include/uapi/asm/ioctls.h
+++ b/arch/parisc/include/uapi/asm/ioctls.h
@@ -60,7 +60,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define FIONCLEX	0x5450  /* these numbers need to be adjusted. */
 #define FIOCLEX		0x5451
diff --git a/arch/powerpc/include/uapi/asm/ioctls.h b/arch/powerpc/include/uapi/asm/ioctls.h
index bfd609a..e3b1046 100644
--- a/arch/powerpc/include/uapi/asm/ioctls.h
+++ b/arch/powerpc/include/uapi/asm/ioctls.h
@@ -100,7 +100,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/sh/include/uapi/asm/ioctls.h b/arch/sh/include/uapi/asm/ioctls.h
index eec7901..787bac9 100644
--- a/arch/sh/include/uapi/asm/ioctls.h
+++ b/arch/sh/include/uapi/asm/ioctls.h
@@ -93,7 +93,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define TIOCSERCONFIG	_IO('T', 83) /* 0x5453 */
 #define TIOCSERGWILD	_IOR('T', 84,  int) /* 0x5454 */
diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
index 6d27398..f5df72b 100644
--- a/arch/sparc/include/uapi/asm/ioctls.h
+++ b/arch/sparc/include/uapi/asm/ioctls.h
@@ -88,7 +88,7 @@
 #define TIOCGPTN	_IOR('t', 134, unsigned int) /* Get Pty Number */
 #define TIOCSPTLCK	_IOW('t', 135, int) /* Lock/unlock PTY */
 #define TIOCSIG		_IOW('t', 136, int) /* Generate signal on Pty slave */
-#define TIOCGPTPEER	_IOR('t', 137, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('t', 137) /* Safely open the slave */
 
 /* Little f */
 #define FIOCLEX		_IO('f', 1)
diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/uapi/asm/ioctls.h
index 98b004e..47d82c0 100644
--- a/arch/xtensa/include/uapi/asm/ioctls.h
+++ b/arch/xtensa/include/uapi/asm/ioctls.h
@@ -105,7 +105,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define TIOCSERCONFIG	_IO('T', 83)
 #define TIOCSERGWILD	_IOR('T', 84,  int)
diff --git a/include/uapi/asm-generic/ioctls.h b/include/uapi/asm-generic/ioctls.h
index 06d5f7d..14baf9f2 100644
--- a/include/uapi/asm-generic/ioctls.h
+++ b/include/uapi/asm-generic/ioctls.h
@@ -77,7 +77,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define FIONCLEX	0x5450
 #define FIOCLEX		0x5451

-- 
glebfm


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Subject: Re: [PATCH] tty: Fix TIOCGPTPEER ioctl definition
Date: Tue, 11 Jul 2017 12:07:43 +1000
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> This ioctl does nothing to justify an _IOC_READ or _IOC_WRITE flag
> because it doesn't copy anything from/to userspace to access the
> argument.

   Acked-by: Aleksa Sarai <asarai@suse.de>

Oops, I misunderstood what _IOR means semantically. TIL -- thanks!

-- 
Aleksa Sarai
Software Engineer (Containers)
SUSE Linux GmbH
https://www.cyphar.com/


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Subject: Re: [PATCH] tty: Fix TIOCGPTPEER ioctl definition
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On Tue, Jul 11, 2017 at 2:12 AM, Gleb Fotengauer-Malinovskiy
<glebfm@altlinux.org> wrote:
> This ioctl does nothing to justify an _IOC_READ or _IOC_WRITE flag
> because it doesn't copy anything from/to userspace to access the
> argument.
>
> Fixes: 54ebbfb1 ("tty: add TIOCGPTPEER ioctl")
> Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>

Acked-by: Arnd Bergmann <arnd@arndb.de>


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attribute_groups are not supposed to change at runtime. All functions
working with attribute_groups provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/parisc/pdc_stable.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 055f83f..7147aa5 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -954,7 +954,7 @@ static ssize_t pdcs_osdep2_write(struct kobject *kobj,
 	NULL,
 };
 
-static struct attribute_group pdcs_attr_group = {
+static const struct attribute_group pdcs_attr_group = {
 	.attrs = pdcs_subsys_attrs,
 };
 
-- 
1.9.1



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Subject: Re: [PATCH] tty: Fix TIOCGPTPEER ioctl definition
Date: Tue, 11 Jul 2017 11:03:43 +0100
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Cc: Aleksa Sarai <asarai@suse.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Jiri Slaby <jslaby@suse.com>, Arnd Bergmann <arnd@arndb.de>,
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On Tue, Jul 11, 2017 at 03:12:17AM +0300, Gleb Fotengauer-Malinovskiy wrote:
> This ioctl does nothing to justify an _IOC_READ or _IOC_WRITE flag
> because it doesn't copy anything from/to userspace to access the
> argument.
>=20
> Fixes: 54ebbfb1 ("tty: add TIOCGPTPEER ioctl")

I think its recommended these days to include at least 12 nibbles of
commit hash, i.e.

Fixes: 54ebbfb16034 ("tty: add TIOCGPTPEER ioctl")

(consider setting your git default to 12 with this):
git config core.abbrev 12

Cheers
James

> Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>
> ---
>  arch/alpha/include/uapi/asm/ioctls.h   | 2 +-
>  arch/mips/include/uapi/asm/ioctls.h    | 2 +-
>  arch/parisc/include/uapi/asm/ioctls.h  | 2 +-
>  arch/powerpc/include/uapi/asm/ioctls.h | 2 +-
>  arch/sh/include/uapi/asm/ioctls.h      | 2 +-
>  arch/sparc/include/uapi/asm/ioctls.h   | 2 +-
>  arch/xtensa/include/uapi/asm/ioctls.h  | 2 +-
>  include/uapi/asm-generic/ioctls.h      | 2 +-
>  8 files changed, 8 insertions(+), 8 deletions(-)
>=20
> diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/ua=
pi/asm/ioctls.h
> index ff67b837..1cd7dc7 100644
> --- a/arch/alpha/include/uapi/asm/ioctls.h
> +++ b/arch/alpha/include/uapi/asm/ioctls.h
> @@ -100,7 +100,7 @@
>  #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
>  #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
>  #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
> -#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
> +#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
> =20
>  #define TIOCSERCONFIG	0x5453
>  #define TIOCSERGWILD	0x5454
> diff --git a/arch/mips/include/uapi/asm/ioctls.h b/arch/mips/include/uapi=
/asm/ioctls.h
> index 68e19b6..1609cb0 100644
> --- a/arch/mips/include/uapi/asm/ioctls.h
> +++ b/arch/mips/include/uapi/asm/ioctls.h
> @@ -91,7 +91,7 @@
>  #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
>  #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
>  #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
> -#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
> +#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
> =20
>  /* I hope the range from 0x5480 on is free ... */
>  #define TIOCSCTTY	0x5480		/* become controlling tty */
> diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/=
uapi/asm/ioctls.h
> index 674c68a..d0e3321 100644
> --- a/arch/parisc/include/uapi/asm/ioctls.h
> +++ b/arch/parisc/include/uapi/asm/ioctls.h
> @@ -60,7 +60,7 @@
>  #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
>  #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
>  #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
> -#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
> +#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
> =20
>  #define FIONCLEX	0x5450  /* these numbers need to be adjusted. */
>  #define FIOCLEX		0x5451
> diff --git a/arch/powerpc/include/uapi/asm/ioctls.h b/arch/powerpc/includ=
e/uapi/asm/ioctls.h
> index bfd609a..e3b1046 100644
> --- a/arch/powerpc/include/uapi/asm/ioctls.h
> +++ b/arch/powerpc/include/uapi/asm/ioctls.h
> @@ -100,7 +100,7 @@
>  #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
>  #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
>  #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
> -#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
> +#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
> =20
>  #define TIOCSERCONFIG	0x5453
>  #define TIOCSERGWILD	0x5454
> diff --git a/arch/sh/include/uapi/asm/ioctls.h b/arch/sh/include/uapi/asm=
/ioctls.h
> index eec7901..787bac9 100644
> --- a/arch/sh/include/uapi/asm/ioctls.h
> +++ b/arch/sh/include/uapi/asm/ioctls.h
> @@ -93,7 +93,7 @@
>  #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
>  #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
>  #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
> -#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
> +#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
> =20
>  #define TIOCSERCONFIG	_IO('T', 83) /* 0x5453 */
>  #define TIOCSERGWILD	_IOR('T', 84,  int) /* 0x5454 */
> diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/ua=
pi/asm/ioctls.h
> index 6d27398..f5df72b 100644
> --- a/arch/sparc/include/uapi/asm/ioctls.h
> +++ b/arch/sparc/include/uapi/asm/ioctls.h
> @@ -88,7 +88,7 @@
>  #define TIOCGPTN	_IOR('t', 134, unsigned int) /* Get Pty Number */
>  #define TIOCSPTLCK	_IOW('t', 135, int) /* Lock/unlock PTY */
>  #define TIOCSIG		_IOW('t', 136, int) /* Generate signal on Pty slave */
> -#define TIOCGPTPEER	_IOR('t', 137, int) /* Safely open the slave */
> +#define TIOCGPTPEER	_IO('t', 137) /* Safely open the slave */
> =20
>  /* Little f */
>  #define FIOCLEX		_IO('f', 1)
> diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/=
uapi/asm/ioctls.h
> index 98b004e..47d82c0 100644
> --- a/arch/xtensa/include/uapi/asm/ioctls.h
> +++ b/arch/xtensa/include/uapi/asm/ioctls.h
> @@ -105,7 +105,7 @@
>  #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
>  #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
>  #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
> -#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
> +#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
> =20
>  #define TIOCSERCONFIG	_IO('T', 83)
>  #define TIOCSERGWILD	_IOR('T', 84,  int)
> diff --git a/include/uapi/asm-generic/ioctls.h b/include/uapi/asm-generic=
/ioctls.h
> index 06d5f7d..14baf9f2 100644
> --- a/include/uapi/asm-generic/ioctls.h
> +++ b/include/uapi/asm-generic/ioctls.h
> @@ -77,7 +77,7 @@
>  #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
>  #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
>  #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
> -#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
> +#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
> =20
>  #define FIONCLEX	0x5450
>  #define FIOCLEX		0x5451
>=20
> --=20
> glebfm
>=20

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From: David Laight <David.Laight@ACULAB.COM>
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Subject: RE: [PATCH] tty: Fix TIOCGPTPEER ioctl definition
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To: 'Gleb Fotengauer-Malinovskiy' <glebfm@altlinux.org>,
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Thread-Topic: [PATCH] tty: Fix TIOCGPTPEER ioctl definition
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From: Linuxppc-dev  Gleb Fotengauer-Malinovskiy
> Sent: 11 July 2017 01:12
> This ioctl does nothing to justify an _IOC_READ or _IOC_WRITE flag
> because it doesn't copy anything from/to userspace to access the
> argument.
> 
> Fixes: 54ebbfb1 ("tty: add TIOCGPTPEER ioctl")
...
> -#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
> +#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */

This is a user API change. When was the ioctl added?

	David



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Subject: Re: [PATCH] tty: Fix TIOCGPTPEER ioctl definition
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>> Sent: 11 July 2017 01:12
>> This ioctl does nothing to justify an _IOC_READ or _IOC_WRITE flag
>> because it doesn't copy anything from/to userspace to access the
>> argument.
>>
>> Fixes: 54ebbfb1 ("tty: add TIOCGPTPEER ioctl")
> ...
>> -#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
>> +#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
> 
> This is a user API change. When was the ioctl added?

It was just pulled this merge window (4.13-rc1).

  % git tag --contains 54ebbfb1603415d9953c150535850d30609ef077
  %

-- 
Aleksa Sarai
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From - Thu Nov 08 21:40:01 2018
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Subject: Re: [PATCH v3 0/2] [media] videobuf2-dc: Add support for cacheable
        MMAP
Date: Thu, 13 Jul 2017 15:36:00 +0200
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References: <CGME20161026085228epcas3p3895ea279d5538750a3b1c59715ad3761@epcas3p3.samsung.com> <1477471926-15796-1-git-send-email-thierry.escande@collabora.com> <f829886e-4842-a500-6b10-9a46e1b763f5@samsung.com> <20170705173327.GD5417@lst.de> <7505cb31-6bd1-7f76-f975-aa5e61e567f0@samsung.com> <20170713132153.GD31807@n2100.armlinux.org.uk>
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To: Russell King - ARM Linux <linux@armlinux.org.uk>
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On Thu, Jul 13, 2017 at 02:21:53PM +0100, Russell King - ARM Linux wrote:
> My conclusion of the dma_alloc_noncoherent() and dma_cache_sync() API
> when it was introduced is that it's basically a completely broken
> interface, and I've never seen any point to it.  Maybe some of that is
> because it's badly documented - which in turn makes it badly designed
> (because there's no specification detailing what it's supposed to be
> doing.)
> 
> I'd like to see that thing die...

It's not exactly the best interface ever, so any improvement is welcome.

I've posted a series to kill dma_alloc_noncoherent in favor of
dma_alloc_attrs a short while ago, and a big chunk of it should have
made it into 4.12.  I plan to kill it off entirely for 4.13.

That leaves dma_cache_sync() - it's used by 6 drivers:

drivers/net/ethernet/i825xx/lasi_82596.c
drivers/net/ethernet/seeq/sgiseeq.c
drivers/scsi/53c700.c
drivers/scsi/sgiwd93.c
drivers/sh/maple/maple.c
drivers/tty/serial/mpsc.c

Those are used on parisc, mips for a few old SGI systems, the SH
dreamcast and powerpc marvell mv64x60 devices.

So it shouldn't be too hard to figure out if they could be moved
to the normal dma_sync_* calls.

On parisc dma_cache_sync is equivalent to dma_sync_single_for_cpu,
so that should be fine.

On mips the implementation of dma_sync_single_for_cpu is a little
more complicated, but both dma_sync_single_for_cpu and dma_cache_sync
end up calling __dma_sync_virtual, so they look like the same in
the end as well.

On SH sync_single_for_device is implemented using dma_cache_sync,
and there is no dma_sync_single_for_cpu.

On powerpc both dma_sync_single_for_cpu and dma_sync_single_for_device
are implemented using the same primitive as dma_cache_sync.

In short: killing off dma_cache_sync and using the existing and
better defined syncing primitives looks entirely feasible.

I'll add it to my TODO list for 4.13.
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From - Thu Nov 08 21:40:01 2018
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Glibc is no longer is broken on hppa.  See:
https://sourceware.org/ml/libc-alpha/2017-07/msg00595.html

Dave
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From - Thu Nov 08 21:40:01 2018
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Subject: [PATCH] [PING] Fix TIOCGPTPEER ioctl definition
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This ioctl does nothing to justify an _IOC_READ or _IOC_WRITE flag
because it doesn't copy anything from/to userspace to access the
argument.

Fixes: 54ebbfb16034 ("tty: add TIOCGPTPEER ioctl")
Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>
Acked-by: Aleksa Sarai <asarai@suse.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/alpha/include/uapi/asm/ioctls.h   | 2 +-
 arch/mips/include/uapi/asm/ioctls.h    | 2 +-
 arch/parisc/include/uapi/asm/ioctls.h  | 2 +-
 arch/powerpc/include/uapi/asm/ioctls.h | 2 +-
 arch/sh/include/uapi/asm/ioctls.h      | 2 +-
 arch/sparc/include/uapi/asm/ioctls.h   | 2 +-
 arch/xtensa/include/uapi/asm/ioctls.h  | 2 +-
 include/uapi/asm-generic/ioctls.h      | 2 +-
 8 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
index ff67b8373bf7..1cd7dc7d4870 100644
--- a/arch/alpha/include/uapi/asm/ioctls.h
+++ b/arch/alpha/include/uapi/asm/ioctls.h
@@ -100,7 +100,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/mips/include/uapi/asm/ioctls.h b/arch/mips/include/uapi/asm/ioctls.h
index 68e19b689a00..1609cb0907ac 100644
--- a/arch/mips/include/uapi/asm/ioctls.h
+++ b/arch/mips/include/uapi/asm/ioctls.h
@@ -91,7 +91,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 /* I hope the range from 0x5480 on is free ... */
 #define TIOCSCTTY	0x5480		/* become controlling tty */
diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
index 674c68a5bbd0..d0e3321403be 100644
--- a/arch/parisc/include/uapi/asm/ioctls.h
+++ b/arch/parisc/include/uapi/asm/ioctls.h
@@ -60,7 +60,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define FIONCLEX	0x5450  /* these numbers need to be adjusted. */
 #define FIOCLEX		0x5451
diff --git a/arch/powerpc/include/uapi/asm/ioctls.h b/arch/powerpc/include/uapi/asm/ioctls.h
index bfd609a3e928..e3b10469f787 100644
--- a/arch/powerpc/include/uapi/asm/ioctls.h
+++ b/arch/powerpc/include/uapi/asm/ioctls.h
@@ -100,7 +100,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/sh/include/uapi/asm/ioctls.h b/arch/sh/include/uapi/asm/ioctls.h
index eec7901e9e65..787bac9f67da 100644
--- a/arch/sh/include/uapi/asm/ioctls.h
+++ b/arch/sh/include/uapi/asm/ioctls.h
@@ -93,7 +93,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define TIOCSERCONFIG	_IO('T', 83) /* 0x5453 */
 #define TIOCSERGWILD	_IOR('T', 84,  int) /* 0x5454 */
diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
index 6d27398632ea..f5df72b93bb2 100644
--- a/arch/sparc/include/uapi/asm/ioctls.h
+++ b/arch/sparc/include/uapi/asm/ioctls.h
@@ -88,7 +88,7 @@
 #define TIOCGPTN	_IOR('t', 134, unsigned int) /* Get Pty Number */
 #define TIOCSPTLCK	_IOW('t', 135, int) /* Lock/unlock PTY */
 #define TIOCSIG		_IOW('t', 136, int) /* Generate signal on Pty slave */
-#define TIOCGPTPEER	_IOR('t', 137, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('t', 137) /* Safely open the slave */
 
 /* Little f */
 #define FIOCLEX		_IO('f', 1)
diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/uapi/asm/ioctls.h
index 98b004e24e85..47d82c09be7b 100644
--- a/arch/xtensa/include/uapi/asm/ioctls.h
+++ b/arch/xtensa/include/uapi/asm/ioctls.h
@@ -105,7 +105,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define TIOCSERCONFIG	_IO('T', 83)
 #define TIOCSERGWILD	_IOR('T', 84,  int)
diff --git a/include/uapi/asm-generic/ioctls.h b/include/uapi/asm-generic/ioctls.h
index 06d5f7ddf84e..14baf9f23a14 100644
--- a/include/uapi/asm-generic/ioctls.h
+++ b/include/uapi/asm-generic/ioctls.h
@@ -77,7 +77,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define FIONCLEX	0x5450
 #define FIOCLEX		0x5451
-- 
glebfm


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Subject: Re: [PATCH] [PING] Fix TIOCGPTPEER ioctl definition
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On Mon, Jul 17, 2017 at 04:29:46PM +0300, Gleb Fotengauer-Malinovskiy wrote:
> This ioctl does nothing to justify an _IOC_READ or _IOC_WRITE flag
> because it doesn't copy anything from/to userspace to access the
> argument.
> 
> Fixes: 54ebbfb16034 ("tty: add TIOCGPTPEER ioctl")
> Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>
> Acked-by: Aleksa Sarai <asarai@suse.de>
> Acked-by: Arnd Bergmann <arnd@arndb.de>


Why the PING?  -rc1 just happened, so I am only now able to apply the
patch to the tree.  Please relax, you are behind about 800+ other
patches in my queue...

thanks,

greg k-h


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Subject: Re: glibc updated
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On Mon, Jul 17, 2017 at 7:54 AM, John David Anglin <dave.anglin@bell.net> wrote:
> Glibc is no longer is broken on hppa.  See:
> https://sourceware.org/ml/libc-alpha/2017-07/msg00595.html

Thanks  for all the upstream fixes!

Cheers,
Carlos.
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On 2017-07-17 12:00 PM, Carlos O'Donell wrote:
> On Mon, Jul 17, 2017 at 7:54 AM, John David Anglin<dave.anglin@bell.net>  wrote:
>> Glibc is no longer broken on hppa.  See:
>> https://sourceware.org/ml/libc-alpha/2017-07/msg00595.html
> Thanks  for all the upstream fixes!
Appreciated.  It took a fair bit of time last weekend.  As a result, we 
got a bit of help in
fixing a couple more bugs :-)

I would like to know if the gentoo folks would consider fixing the 
__gmon_start__ bug:
https://sourceware.org/bugzilla/show_bug.cgi?id=19170

There is some risk in applying the patch as rebuilding a library package 
may break other
packages which depend on the library.  This could break critical tools 
such as binutils and
gcc.  In which case, some manual intervention may be needed. However, 
the transition
on Debian went fairly smoothly.  As a result, we no longer have the 
external symbol
__gmon_start exposed and we have correct library dependencies.

The issues with _init referred to in the BZ report are fixed.  It is now 
PIC; and PIE applications
work on hppa thanks to Alan Modra.

Although not ideal, we could keep the __gmon_start__ patch in Debian.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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Cc: Parisc List <linux-parisc@vger.kernel.org>,
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To: Carlos O'Donell <carlos@systemhalted.org>
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On 2017-07-17 12:33 PM, John David Anglin wrote:
> I would like to know if the gentoo folks would consider fixing the 
> __gmon_start__ bug:
> https://sourceware.org/bugzilla/show_bug.cgi?id=19170
>
> There is some risk in applying the patch as rebuilding a library 
> package may break other
> packages which depend on the library.  This could break critical tools 
> such as binutils and
> gcc.  In which case, some manual intervention may be needed. However, 
> the transition
> on Debian went fairly smoothly.  As a result, we no longer have the 
> external symbol
> __gmon_start exposed and we have correct library dependencies.
>
> The issues with _init referred to in the BZ report are fixed.  It is 
> now PIC; and PIE applications
> work on hppa thanks to Alan Modra.
Helge: we need to add PIE load address to the kernel TODO list if it's 
not already there.
>
> Although not ideal, we could keep the __gmon_start__ patch in Debian.
>
The other approach is to install the __gmon_start__ patch and let gentoo 
revert it.  I'm starting
to think this is best.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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Am 2017-07-18 16:32, schrieb John David Anglin:
> On 2017-07-17 12:33 PM, John David Anglin wrote:
>> I would like to know if the gentoo folks would consider fixing the 
>> __gmon_start__ bug:
>> https://sourceware.org/bugzilla/show_bug.cgi?id=19170
>> 
>> There is some risk in applying the patch as rebuilding a library 
>> package may break other
>> packages which depend on the library.  This could break critical tools 
>> such as binutils and
>> gcc.  In which case, some manual intervention may be needed. However, 
>> the transition
>> on Debian went fairly smoothly.  As a result, we no longer have the 
>> external symbol
>> __gmon_start exposed and we have correct library dependencies.
>> 
>> The issues with _init referred to in the BZ report are fixed.  It is 
>> now PIC; and PIE applications
>> work on hppa thanks to Alan Modra.
> Helge: we need to add PIE load address to the kernel TODO list if it's
> not already there.
>> 
>> Although not ideal, we could keep the __gmon_start__ patch in Debian.
>> 
> The other approach is to install the __gmon_start__ patch and let
> gentoo revert it.  I'm starting
> to think this is best.

I don't think there will be a big problem for Gentoo to accept it, as 
long as there is a working upgrade path like "build glibc with flag 
-special-foo, rebuild system, remove flag and rebuild glibc again". And 
of course a hint in the release notes so it will be obvious to the 
packagers what they have to take care of. That flag thing is something 
that Gentoo probably can add to their build scripts, something that e.g. 
keeps the symbol in the lib without exporting it during linking, so it 
would be resolvable first and the reference goes away on rebuild. Or 
whatever ;)

Eike
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Subject: parisc:generic-64bit_defconfig build failures due to 'kbuild: handle
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Hi,

parisc64 builds, specifically generic-64bit_defconfig, fail to build
in mainline as follows.

hppa64-linux-ld:
hppa64-linux/bin/../lib/gcc/hppa64-linux/4.9.0/libgcc.a(_divdi3.o)(.text+0xec):
cannot reach $$divU
hppa64-linux/bin/../lib/gcc/hppa64-linux/4.9.0/libgcc.a(_divdi3.o):
In function `__divdi3':
libgcc2.c:(.text+0xec): relocation truncated to fit: R_PARISC_PCREL22F against
symbol `$$divU' defined in .text.div section in
hppa64-linux/bin/../lib/gcc/hppa64-linux/4.9.0/libgcc.a(_divU.o)
hppa64-linux-ld:
hppa64-linux/bin/../lib/gcc/hppa64-linux/4.9.0/libgcc.a(_divdi3.o)(.text+0x150):
cannot reach $$divU

[ and many more ]

This is after enabling CONFIG_MLONGCALLS; otherwise build failures are
more severe.

Building with gcc 6.3.0 fails as well with the same error.

Bisect points to commit 3a166fc2d4ef ("kbuild: handle libs-y archives
separately from built-in.o archives") as the culprit. Bisect log is
attached.

Guenter

---
# bad: [5771a8c08880cdca3bfb4a3fc6d309d6bba20877] Linux v4.13-rc1
# good: [9f45efb9286268e01d5022d34a58a68f53ca3072] Merge branch 'akpm' (patches from Andrew)
git bisect start 'HEAD~1' '9f45efb92862'
# bad: [af3c8d98508d37541d4bf57f13a984a7f73a328c] Merge tag 'drm-for-v4.13' of git://people.freedesktop.org/~airlied/linux
git bisect bad af3c8d98508d37541d4bf57f13a984a7f73a328c
# good: [305b9eddeec6d47778aafeded63ee8f37b9ddce0] Merge tag 'drm-intel-next-2017-06-19' of git://anongit.freedesktop.org/git/drm-intel into drm-next
git bisect good 305b9eddeec6d47778aafeded63ee8f37b9ddce0
# good: [ef3ad0898a60d30da7f170032992914998c366e5] Merge tag 'linux-kselftest-4.13-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
git bisect good ef3ad0898a60d30da7f170032992914998c366e5
# bad: [026d15f6b9878794fae1f794cae881ccd65052e5] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
git bisect bad 026d15f6b9878794fae1f794cae881ccd65052e5
# bad: [8b6b3172ce02aef147f74b32ea11796c580f795c] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
git bisect bad 8b6b3172ce02aef147f74b32ea11796c580f795c
# bad: [33198c165b7afd500f7b6b7680ef994296805ef0] Merge tag 'for-linus-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
git bisect bad 33198c165b7afd500f7b6b7680ef994296805ef0
# bad: [98ced886dd79a7028d203ed8adea8452bbfb47b6] Merge tag 'kbuild-thinar-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
git bisect bad 98ced886dd79a7028d203ed8adea8452bbfb47b6
# good: [16ffc4c39415e62c1d027d1bc59ee28e267d59f2] Merge tag 'kbuild-misc-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
git bisect good 16ffc4c39415e62c1d027d1bc59ee28e267d59f2
# bad: [3a166fc2d4ef7a6b7e440271ee6bd1799c066605] kbuild: handle libs-y archives separately from built-in.o archives
git bisect bad 3a166fc2d4ef7a6b7e440271ee6bd1799c066605
# good: [df91b0262e2cff23db5eac77126ea0bef06d54d2] ia64: remove unneeded extra-y in Makefile.gate
git bisect good df91b0262e2cff23db5eac77126ea0bef06d54d2
# good: [9a6cfca4f4130444cb02536a4fdf7b6e285c713e] kbuild: thin archives use P option to ar
git bisect good 9a6cfca4f4130444cb02536a4fdf7b6e285c713e
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Subject: Re: glibc updated
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Hi Eike,

On 2017-07-18 11:13 AM, Rolf Eike Beer wrote:
> Am 2017-07-18 16:32, schrieb John David Anglin:
>> On 2017-07-17 12:33 PM, John David Anglin wrote:
>>> I would like to know if the gentoo folks would consider fixing the 
>>> __gmon_start__ bug:
>>> https://sourceware.org/bugzilla/show_bug.cgi?id=19170
>>>
>>> There is some risk in applying the patch as rebuilding a library 
>>> package may break other
>>> packages which depend on the library.  This could break critical 
>>> tools such as binutils and
>>> gcc.  In which case, some manual intervention may be needed. 
>>> However, the transition
>>> on Debian went fairly smoothly.  As a result, we no longer have the 
>>> external symbol
>>> __gmon_start exposed and we have correct library dependencies.
>>>
>>> The issues with _init referred to in the BZ report are fixed. It is 
>>> now PIC; and PIE applications
>>> work on hppa thanks to Alan Modra.
>> Helge: we need to add PIE load address to the kernel TODO list if it's
>> not already there.
>>>
>>> Although not ideal, we could keep the __gmon_start__ patch in Debian.
>>>
>> The other approach is to install the __gmon_start__ patch and let
>> gentoo revert it.  I'm starting
>> to think this is best.
>
> I don't think there will be a big problem for Gentoo to accept it, as 
> long as there is a working upgrade path like "build glibc with flag 
> -special-foo, rebuild system, remove flag and rebuild glibc again". 
> And of course a hint in the release notes so it will be obvious to the 
> packagers what they have to take care of. That flag thing is something 
> that Gentoo probably can add to their build scripts, something that 
> e.g. keeps the symbol in the lib without exporting it during linking, 
> so it would be resolvable first and the reference goes away on 
> rebuild. Or whatever ;)
I'm not sure you fully understand the issue.  It doesn't involve doing 
anything special in building glibc.

The issue is this code in glibc's crtn.S:

/* Note that we cannot have a weak undefined __gmon_start__, because
    that would require this to be PIC, and the linker is currently not
    able to generate a proper procedure descriptor for _init.  Sad but
    true.  Anyway, HPPA is one of those horrible architectures where
    making the comparison and indirect call is quite expensive (see the
    comment in sysdeps/generic/initfini.c). */
         .text
         .align 4
         .weak   __gmon_start__
         .type    __gmon_start__,@function
__gmon_start__:
         .proc
         .callinfo
         .entry
         bv,n %r0(%r2)
         .exit
         .procend

The above hunk of code results in a weak __gmon_start__ function in 
every shared library.
The function needs to be removed.

As can be seen, the function does nothing.  It is called once when a 
shared library is loaded.

In an application link, __gmon_start__ is resolved to one of the shared 
libraries used by
the application.  If this library is relinked against the new glibc, the 
application may break if
the dynamic linker isn't able to resolve __gmon_start__.  In that case, 
the application needs
to be rebuilt.  The function pointer used to call __gmon_start__ becomes 
a NULL pointer
except when one does a profiled link requiring __gmon_start__.

The difficulty is in knowing which applications need rebuilding and it's 
possible something
critical might break in the upgrade process.  Rebuilding went okay on 
Debian but a few
applications needed rebuilding.

A patch to change __gmon_start__ to undefined weak is referenced in the 
above BZ link.
Gentoo would have to revert the change to keep the current behavior 
where __gmon_start__
is a defined weak symbol.  I don't think a define to allow switching 
behavior is a good idea.

The issues referred to in the comment for  __gmon_start__ are fixed.

The presence of __gmon_start__ is a security issue, it messes up the 
linker --as-needed
option, and a small performance issue.  Applications end up needing 
unnecessary libraries.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: glibc updated
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John David Anglin wrote:
> On 2017-07-18 11:13 AM, Rolf Eike Beer wrote:
> > Am 2017-07-18 16:32, schrieb John David Anglin:
> >> On 2017-07-17 12:33 PM, John David Anglin wrote:
> >>> I would like to know if the gentoo folks would consider fixing the
> >>> __gmon_start__ bug:
> >>> https://sourceware.org/bugzilla/show_bug.cgi?id=19170
> >>> 
> >>> There is some risk in applying the patch as rebuilding a library
> >>> package may break other
> >>> packages which depend on the library.  This could break critical
> >>> tools such as binutils and
> >>> gcc.  In which case, some manual intervention may be needed.
> >>> However, the transition
> >>> on Debian went fairly smoothly.  As a result, we no longer have the
> >>> external symbol
> >>> __gmon_start exposed and we have correct library dependencies.
> >>> 
> >>> The issues with _init referred to in the BZ report are fixed. It is
> >>> now PIC; and PIE applications
> >>> work on hppa thanks to Alan Modra.
> >> 
> >> Helge: we need to add PIE load address to the kernel TODO list if it's
> >> not already there.
> >> 
> >>> Although not ideal, we could keep the __gmon_start__ patch in Debian.
> >> 
> >> The other approach is to install the __gmon_start__ patch and let
> >> gentoo revert it.  I'm starting
> >> to think this is best.
> > 
> > I don't think there will be a big problem for Gentoo to accept it, as
> > long as there is a working upgrade path like "build glibc with flag
> > -special-foo, rebuild system, remove flag and rebuild glibc again".
> > And of course a hint in the release notes so it will be obvious to the
> > packagers what they have to take care of. That flag thing is something
> > that Gentoo probably can add to their build scripts, something that
> > e.g. keeps the symbol in the lib without exporting it during linking,
> > so it would be resolvable first and the reference goes away on
> > rebuild. Or whatever ;)
> 
> I'm not sure you fully understand the issue.  It doesn't involve doing
> anything special in building glibc.
> 
> The issue is this code in glibc's crtn.S:
> 
> /* Note that we cannot have a weak undefined __gmon_start__, because
>     that would require this to be PIC, and the linker is currently not
>     able to generate a proper procedure descriptor for _init.  Sad but
>     true.  Anyway, HPPA is one of those horrible architectures where
>     making the comparison and indirect call is quite expensive (see the
>     comment in sysdeps/generic/initfini.c). */
>          .text
>          .align 4
>          .weak   __gmon_start__
>          .type    __gmon_start__,@function
> __gmon_start__:
>          .proc
>          .callinfo
>          .entry
>          bv,n %r0(%r2)
>          .exit
>          .procend
> 
> The above hunk of code results in a weak __gmon_start__ function in
> every shared library.
> The function needs to be removed.
> 
> As can be seen, the function does nothing.  It is called once when a
> shared library is loaded.
> 
> In an application link, __gmon_start__ is resolved to one of the shared
> libraries used by the application.

So, this would be a problem if the application only links to glibc (and it's 
libraries), no? The problem is not rebuilding, Gentoo is actually totally 
about rebuilding your system every now and then ;) The point is: what must be 
done to have an upgrade path from the old glibc to the new one that will not 
break the system on the way.

Eike
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From - Thu Nov 08 21:40:02 2018
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Subject: Re: glibc updated
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On 2017-07-18 3:39 PM, Rolf Eike Beer wrote:
> John David Anglin wrote:
>> On 2017-07-18 11:13 AM, Rolf Eike Beer wrote:
>>> Am 2017-07-18 16:32, schrieb John David Anglin:
>>>> On 2017-07-17 12:33 PM, John David Anglin wrote:
>>>>> I would like to know if the gentoo folks would consider fixing the
>>>>> __gmon_start__ bug:
>>>>> https://sourceware.org/bugzilla/show_bug.cgi?id=19170
>>>>>
>>>>> There is some risk in applying the patch as rebuilding a library
>>>>> package may break other
>>>>> packages which depend on the library.  This could break critical
>>>>> tools such as binutils and
>>>>> gcc.  In which case, some manual intervention may be needed.
>>>>> However, the transition
>>>>> on Debian went fairly smoothly.  As a result, we no longer have the
>>>>> external symbol
>>>>> __gmon_start exposed and we have correct library dependencies.
>>>>>
>>>>> The issues with _init referred to in the BZ report are fixed. It is
>>>>> now PIC; and PIE applications
>>>>> work on hppa thanks to Alan Modra.
>>>> Helge: we need to add PIE load address to the kernel TODO list if it's
>>>> not already there.
>>>>
>>>>> Although not ideal, we could keep the __gmon_start__ patch in Debian.
>>>> The other approach is to install the __gmon_start__ patch and let
>>>> gentoo revert it.  I'm starting
>>>> to think this is best.
>>> I don't think there will be a big problem for Gentoo to accept it, as
>>> long as there is a working upgrade path like "build glibc with flag
>>> -special-foo, rebuild system, remove flag and rebuild glibc again".
>>> And of course a hint in the release notes so it will be obvious to the
>>> packagers what they have to take care of. That flag thing is something
>>> that Gentoo probably can add to their build scripts, something that
>>> e.g. keeps the symbol in the lib without exporting it during linking,
>>> so it would be resolvable first and the reference goes away on
>>> rebuild. Or whatever ;)
>> I'm not sure you fully understand the issue.  It doesn't involve doing
>> anything special in building glibc.
>>
>> The issue is this code in glibc's crtn.S:
>>
>> /* Note that we cannot have a weak undefined __gmon_start__, because
>>      that would require this to be PIC, and the linker is currently not
>>      able to generate a proper procedure descriptor for _init.  Sad but
>>      true.  Anyway, HPPA is one of those horrible architectures where
>>      making the comparison and indirect call is quite expensive (see the
>>      comment in sysdeps/generic/initfini.c). */
>>           .text
>>           .align 4
>>           .weak   __gmon_start__
>>           .type    __gmon_start__,@function
>> __gmon_start__:
>>           .proc
>>           .callinfo
>>           .entry
>>           bv,n %r0(%r2)
>>           .exit
>>           .procend
>>
>> The above hunk of code results in a weak __gmon_start__ function in
>> every shared library.
>> The function needs to be removed.
>>
>> As can be seen, the function does nothing.  It is called once when a
>> shared library is loaded.
>>
>> In an application link, __gmon_start__ is resolved to one of the shared
>> libraries used by the application.
> So, this would be a problem if the application only links to glibc (and it's
> libraries), no? The problem is not rebuilding, Gentoo is actually totally
> about rebuilding your system every now and then ;) The point is: what must be
> done to have an upgrade path from the old glibc to the new one that will not
> break the system on the way.
It's not a problem for applications that only link against libc, but for 
other libraries.  I'm
not aware of any way to avoid some breakage other than retaining the old 
behavior.  The new
glibc doesn't break anything directly.  The breakage occurs when 
libraries are linked with
the new crt* files.

One could build up a minimal system in a chroot.  When you are sure that 
it works, then
these tools could be used to get past any breakage.  I don't know the 
gentoo build system
so I don't know how easy this would be.

Dave

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Remove useless local variable multiport_cnt and the code related.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/net/ethernet/dec/tulip/tulip_core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index 17e566a..84394b4 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -1303,7 +1303,6 @@ static int tulip_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		0x00, 'L', 'i', 'n', 'u', 'x'
 	};
 	static int last_irq;
-	static int multiport_cnt;	/* For four-port boards w/one EEPROM */
 	int i, irq;
 	unsigned short sum;
 	unsigned char *ee_data;
@@ -1557,7 +1556,6 @@ static int tulip_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		} else if (ee_data[0] == 0xff  &&  ee_data[1] == 0xff &&
 				   ee_data[2] == 0) {
 			sa_offset = 2;		/* Grrr, damn Matrox boards. */
-			multiport_cnt = 4;
 		}
 #ifdef CONFIG_MIPS_COBALT
                if ((pdev->bus->number == 0) &&
-- 
2.5.0

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On 2017-07-18, at 11:21 AM, Guenter Roeck wrote:

> Hi,
> 
> parisc64 builds, specifically generic-64bit_defconfig, fail to build
> in mainline as follows.


It's likely this patch fixes the problem:
https://patchwork.kernel.org/patch/9832033/

Dave
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On Tue, 18 Jul 2017 23:58:07 +0200
Helge Deller <helge.deller@steuerkanzlei-deller.de> wrote:

>     
> This outstanding patch will fix it:
> https://patchwork.kernel.org/patch/9832033/
> Helge 
> Von meinem Samsung Gerät gesendet.

Thanks for the quick fix. I'm not sure why 0day didn't catch it.
Does it build test parisc/generic-64bit_defconfig, I wonder?

Thanks,
Nick


> 
> -------- Ursprüngliche Nachricht --------
> Von: Guenter Roeck <linux@roeck-us.net> 
> Datum: 18.07.17  17:21  (GMT+01:00) 
> An: Nicholas Piggin <npiggin@gmail.com> 
> Cc: linux-kernel@vger.kernel.org, Masahiro Yamada <yamada.masahiro@socionext.com>, "James E.J. Bottomley" <jejb@parisc-linux.org>, Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org 
> Betreff: parisc:generic-64bit_defconfig build failures due to 'kbuild: handle
  libs-y archives separately...' 
> 
> Hi,
> 
> parisc64 builds, specifically generic-64bit_defconfig, fail to build
> in mainline as follows.
> 
> hppa64-linux-ld:
> hppa64-linux/bin/../lib/gcc/hppa64-linux/4.9.0/libgcc.a(_divdi3.o)(.text+0xec):
> cannot reach $$divU
> hppa64-linux/bin/../lib/gcc/hppa64-linux/4.9.0/libgcc.a(_divdi3.o):
> In function `__divdi3':
> libgcc2.c:(.text+0xec): relocation truncated to fit: R_PARISC_PCREL22F against
> symbol `$$divU' defined in .text.div section in
> hppa64-linux/bin/../lib/gcc/hppa64-linux/4.9.0/libgcc.a(_divU.o)
> hppa64-linux-ld:
> hppa64-linux/bin/../lib/gcc/hppa64-linux/4.9.0/libgcc.a(_divdi3.o)(.text+0x150):
> cannot reach $$divU
> 
> [ and many more ]
> 
> This is after enabling CONFIG_MLONGCALLS; otherwise build failures are
> more severe.
> 
> Building with gcc 6.3.0 fails as well with the same error.
> 
> Bisect points to commit 3a166fc2d4ef ("kbuild: handle libs-y archives
> separately from built-in.o archives") as the culprit. Bisect log is
> attached.
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On Wed, Jul 19, 2017 at 12:01:06PM +1000, Nicholas Piggin wrote:
>On Tue, 18 Jul 2017 23:58:07 +0200
>Helge Deller <helge.deller@steuerkanzlei-deller.de> wrote:
>
>>
>> This outstanding patch will fix it:
>> https://patchwork.kernel.org/patch/9832033/
>> Helge 
>> Von meinem Samsung Gerät gesendet.
>
>Thanks for the quick fix. I'm not sure why 0day didn't catch it.
>Does it build test parisc/generic-64bit_defconfig, I wonder?

We do test that config. I guess it's because the build servers are
under pressure recently. Philip/Xiaolong are looking at this issue.

Thanks,
Fengguang

>> -------- Ursprüngliche Nachricht --------
>> Von: Guenter Roeck <linux@roeck-us.net>
>> Datum: 18.07.17  17:21  (GMT+01:00)
>> An: Nicholas Piggin <npiggin@gmail.com>
>> Cc: linux-kernel@vger.kernel.org, Masahiro Yamada <yamada.masahiro@socionext.com>, "James E.J. Bottomley" <jejb@parisc-linux.org>, Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org
>> Betreff: parisc:generic-64bit_defconfig build failures due to 'kbuild: handle
>  libs-y archives separately...'
>>
>> Hi,
>>
>> parisc64 builds, specifically generic-64bit_defconfig, fail to build
>> in mainline as follows.
>>
>> hppa64-linux-ld:
>> hppa64-linux/bin/../lib/gcc/hppa64-linux/4.9.0/libgcc.a(_divdi3.o)(.text+0xec):
>> cannot reach $$divU
>> hppa64-linux/bin/../lib/gcc/hppa64-linux/4.9.0/libgcc.a(_divdi3.o):
>> In function `__divdi3':
>> libgcc2.c:(.text+0xec): relocation truncated to fit: R_PARISC_PCREL22F against
>> symbol `$$divU' defined in .text.div section in
>> hppa64-linux/bin/../lib/gcc/hppa64-linux/4.9.0/libgcc.a(_divU.o)
>> hppa64-linux-ld:
>> hppa64-linux/bin/../lib/gcc/hppa64-linux/4.9.0/libgcc.a(_divdi3.o)(.text+0x150):
>> cannot reach $$divU
>>
>> [ and many more ]
>>
>> This is after enabling CONFIG_MLONGCALLS; otherwise build failures are
>> more severe.
>>
>> Building with gcc 6.3.0 fails as well with the same error.
>>
>> Bisect points to commit 3a166fc2d4ef ("kbuild: handle libs-y archives
>> separately from built-in.o archives") as the culprit. Bisect log is
>> attached.


From - Thu Nov 08 21:40:02 2018
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Subject: RE: parisc:generic-64bit_defconfig build failures due to 'kbuild:
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Cc: Helge Deller <helge.deller@steuerkanzlei-deller.de>,
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To: "Wu, Fengguang" <fengguang.wu@intel.com>,
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On 2017-07-18 4:26 PM, John David Anglin wrote:
> On 2017-07-18 3:39 PM, Rolf Eike Beer wrote:
>> John David Anglin wrote:
>>> On 2017-07-18 11:13 AM, Rolf Eike Beer wrote:
>>>> Am 2017-07-18 16:32, schrieb John David Anglin:
>>>>> On 2017-07-17 12:33 PM, John David Anglin wrote:
>>>>>> I would like to know if the gentoo folks would consider fixing the
>>>>>> __gmon_start__ bug:
>>>>>> https://sourceware.org/bugzilla/show_bug.cgi?id=19170
>>>>>>
>>>>>> There is some risk in applying the patch as rebuilding a library
>>>>>> package may break other
>>>>>> packages which depend on the library.  This could break critical
>>>>>> tools such as binutils and
>>>>>> gcc.  In which case, some manual intervention may be needed.
>>>>>> However, the transition
>>>>>> on Debian went fairly smoothly.  As a result, we no longer have the
>>>>>> external symbol
>>>>>> __gmon_start exposed and we have correct library dependencies.
>>>>>>
>>>>>> The issues with _init referred to in the BZ report are fixed. It is
>>>>>> now PIC; and PIE applications
>>>>>> work on hppa thanks to Alan Modra.
>>>>> Helge: we need to add PIE load address to the kernel TODO list if 
>>>>> it's
>>>>> not already there.
>>>>>
>>>>>> Although not ideal, we could keep the __gmon_start__ patch in 
>>>>>> Debian.
>>>>> The other approach is to install the __gmon_start__ patch and let
>>>>> gentoo revert it.  I'm starting
>>>>> to think this is best.
>>>> I don't think there will be a big problem for Gentoo to accept it, as
>>>> long as there is a working upgrade path like "build glibc with flag
>>>> -special-foo, rebuild system, remove flag and rebuild glibc again".
>>>> And of course a hint in the release notes so it will be obvious to the
>>>> packagers what they have to take care of. That flag thing is something
>>>> that Gentoo probably can add to their build scripts, something that
>>>> e.g. keeps the symbol in the lib without exporting it during linking,
>>>> so it would be resolvable first and the reference goes away on
>>>> rebuild. Or whatever ;)
>>> I'm not sure you fully understand the issue.  It doesn't involve doing
>>> anything special in building glibc.
>>>
>>> The issue is this code in glibc's crtn.S:
>>>
>>> /* Note that we cannot have a weak undefined __gmon_start__, because
>>>      that would require this to be PIC, and the linker is currently not
>>>      able to generate a proper procedure descriptor for _init.  Sad but
>>>      true.  Anyway, HPPA is one of those horrible architectures where
>>>      making the comparison and indirect call is quite expensive (see 
>>> the
>>>      comment in sysdeps/generic/initfini.c). */
>>>           .text
>>>           .align 4
>>>           .weak   __gmon_start__
>>>           .type    __gmon_start__,@function
>>> __gmon_start__:
>>>           .proc
>>>           .callinfo
>>>           .entry
>>>           bv,n %r0(%r2)
>>>           .exit
>>>           .procend
>>>
>>> The above hunk of code results in a weak __gmon_start__ function in
>>> every shared library.
>>> The function needs to be removed.
>>>
>>> As can be seen, the function does nothing.  It is called once when a
>>> shared library is loaded.
>>>
>>> In an application link, __gmon_start__ is resolved to one of the shared
>>> libraries used by the application.
>> So, this would be a problem if the application only links to glibc 
>> (and it's
>> libraries), no? The problem is not rebuilding, Gentoo is actually 
>> totally
>> about rebuilding your system every now and then ;) The point is: what 
>> must be
>> done to have an upgrade path from the old glibc to the new one that 
>> will not
>> break the system on the way.
> It's not a problem for applications that only link against libc, but 
> for other libraries.  I'm
> not aware of any way to avoid some breakage other than retaining the 
> old behavior.  The new
> glibc doesn't break anything directly.  The breakage occurs when 
> libraries are linked with
> the new crt* files.
>
> One could build up a minimal system in a chroot.  When you are sure 
> that it works, then
> these tools could be used to get past any breakage.  I don't know the 
> gentoo build system
> so I don't know how easy this would be.
The patch will not be applied until after the 2.26 branch is created so 
there is plenty of time to
consider what needs to be done.

There is one addition issue to consider.  Linuxthreads is now removed 
and hppa uses the
generic nptl thread support.  So, old linuxthread applications will no 
longer work.  Changes
to nptl broke 2.25 on hppa and no doubt the code that tried to handle 
both methodologies
was buggy.  Most architectures dropped linuxthreads years ago.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Tue, 18 Jul 2017 15:43:33 -0500

> Remove useless local variable multiport_cnt and the code related.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>

Applied.


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Subject: [RESEND PATCH] parisc: defconfig: Cleanup from old Kconfig options
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Remove old, dead Kconfig options (in order appearing in this commit):
 - EXPERIMENTAL is gone since v3.9;
 - INET_LRO: commit 7bbf3cae65b6 ("ipv4: Remove inet_lro library");
 - IP_NF_QUEUE: commit 3dd6664fac7e ("netfilter: remove unused "config
   IP_NF_QUEUE"");
 - VIDEO_OUTPUT_CONTROL: commit f167a64e9d67 ("video / output: Drop
   display output class support");
 - RCU_CPU_STALL_DETECTOR: commit a00e0d714fbd ("rcu: Remove conditional
   compilation for RCU CPU stall warnings");
 - IP_NF_TARGET_ULOG: commit d4da843e6fad ("netfilter: kill remnants of
   ulog targets");
 - IP6_NF_TARGET_LOG: commit 6939c33a757b ("netfilter: merge ipt_LOG and
   ip6_LOG into xt_LOG");
 - AUTOFS_FS: commit 561c5cf9236a ("staging: Remove autofs3");

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
 arch/parisc/configs/712_defconfig           | 5 -----
 arch/parisc/configs/a500_defconfig          | 6 ------
 arch/parisc/configs/b180_defconfig          | 3 ---
 arch/parisc/configs/c3000_defconfig         | 5 -----
 arch/parisc/configs/default_defconfig       | 5 -----
 arch/parisc/configs/generic-32bit_defconfig | 2 --
 6 files changed, 26 deletions(-)

diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig
index 143d02652792..493e03c2a219 100644
--- a/arch/parisc/configs/712_defconfig
+++ b/arch/parisc/configs/712_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -32,11 +31,9 @@ CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=m
 # CONFIG_IPV6 is not set
 CONFIG_NETFILTER=y
-CONFIG_IP_NF_QUEUE=m
 CONFIG_LLC2=m
 CONFIG_NET_PKTGEN=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -94,7 +91,6 @@ CONFIG_PPDEV=m
 # CONFIG_HW_RANDOM is not set
 CONFIG_RAW_DRIVER=y
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_TILEBLITTING=y
@@ -181,7 +177,6 @@ CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_FS=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_HMAC=y
diff --git a/arch/parisc/configs/a500_defconfig b/arch/parisc/configs/a500_defconfig
index 1a4f776b49b8..8d67e2373920 100644
--- a/arch/parisc/configs/a500_defconfig
+++ b/arch/parisc/configs/a500_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -43,21 +42,18 @@ CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET6_AH=m
 CONFIG_INET6_ESP=m
 CONFIG_INET6_IPCOMP=m
 CONFIG_IPV6_TUNNEL=m
 CONFIG_NETFILTER=y
 # CONFIG_NETFILTER_XT_MATCH_DCCP is not set
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_ECN=m
 CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
 CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_IP_NF_MANGLE=m
 CONFIG_IP_NF_TARGET_ECN=m
 CONFIG_IP_NF_RAW=m
@@ -70,7 +66,6 @@ CONFIG_IP6_NF_MATCH_OPTS=m
 CONFIG_IP6_NF_MATCH_HL=m
 CONFIG_IP6_NF_MATCH_IPV6HEADER=m
 CONFIG_IP6_NF_MATCH_RT=m
-CONFIG_IP6_NF_TARGET_LOG=m
 CONFIG_IP6_NF_FILTER=m
 CONFIG_IP6_NF_TARGET_REJECT=m
 CONFIG_IP6_NF_MANGLE=m
@@ -192,7 +187,6 @@ CONFIG_DEBUG_FS=y
 CONFIG_HEADERS_CHECK=y
 CONFIG_DEBUG_KERNEL=y
 # CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_HMAC=y
diff --git a/arch/parisc/configs/b180_defconfig b/arch/parisc/configs/b180_defconfig
index f1a0c25bef8d..0eca8208591c 100644
--- a/arch/parisc/configs/b180_defconfig
+++ b/arch/parisc/configs/b180_defconfig
@@ -25,7 +25,6 @@ CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_PNP=y
 CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
 CONFIG_IPV6=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
@@ -71,7 +70,6 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
 CONFIG_PRINTER=y
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
@@ -105,6 +103,5 @@ CONFIG_NLS_UTF8=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_HEADERS_CHECK=y
 CONFIG_DEBUG_KERNEL=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_SECURITY=y
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index 8e8f0e34f817..8337f5adf414 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_IKCONFIG=y
@@ -31,13 +30,11 @@ CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_PNP=y
 CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 CONFIG_INET6_IPCOMP=m
 CONFIG_IPV6_TUNNEL=m
 CONFIG_NETFILTER=y
 CONFIG_NETFILTER_DEBUG=y
-CONFIG_IP_NF_QUEUE=m
 CONFIG_NET_PKTGEN=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
@@ -111,7 +108,6 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
 # CONFIG_HW_RANDOM is not set
 CONFIG_RAW_DRIVER=y
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
@@ -165,7 +161,6 @@ CONFIG_HEADERS_CHECK=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
 # CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_MD5=m
diff --git a/arch/parisc/configs/default_defconfig b/arch/parisc/configs/default_defconfig
index 310b6657e4ac..e28e3acbdff3 100644
--- a/arch/parisc/configs/default_defconfig
+++ b/arch/parisc/configs/default_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -41,7 +40,6 @@ CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=m
 CONFIG_IPV6=y
 CONFIG_INET6_AH=y
@@ -114,7 +112,6 @@ CONFIG_PRINTER=m
 CONFIG_PPDEV=m
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_TILEBLITTING=y
@@ -151,7 +148,6 @@ CONFIG_USB_UHCI_HCD=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_FS_XATTR is not set
-CONFIG_AUTOFS_FS=y
 CONFIG_ISO9660_FS=y
 CONFIG_JOLIET=y
 CONFIG_VFAT_FS=y
@@ -209,7 +205,6 @@ CONFIG_DEBUG_FS=y
 CONFIG_HEADERS_CHECK=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_KEYS=y
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig
index 8688ba7f5966..80aa10a9016e 100644
--- a/arch/parisc/configs/generic-32bit_defconfig
+++ b/arch/parisc/configs/generic-32bit_defconfig
@@ -49,7 +49,6 @@ CONFIG_INET_ESP=m
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=m
 CONFIG_LLC2=m
 # CONFIG_WIRELESS is not set
@@ -152,7 +151,6 @@ CONFIG_I2C=y
 CONFIG_POWER_SUPPLY=y
 # CONFIG_HWMON is not set
 CONFIG_AGP=y
-CONFIG_VIDEO_OUTPUT_CONTROL=y
 CONFIG_FB=y
 CONFIG_FB_FOREIGN_ENDIAN=y
 CONFIG_FB_MODE_HELPERS=y
-- 
2.7.4



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On 20.07.2017 07:00, Krzysztof Kozlowski wrote:
> Remove old, dead Kconfig options (in order appearing in this commit):
>  - EXPERIMENTAL is gone since v3.9;
>  - INET_LRO: commit 7bbf3cae65b6 ("ipv4: Remove inet_lro library");
>  - IP_NF_QUEUE: commit 3dd6664fac7e ("netfilter: remove unused "config
>    IP_NF_QUEUE"");
>  - VIDEO_OUTPUT_CONTROL: commit f167a64e9d67 ("video / output: Drop
>    display output class support");
>  - RCU_CPU_STALL_DETECTOR: commit a00e0d714fbd ("rcu: Remove conditional
>    compilation for RCU CPU stall warnings");
>  - IP_NF_TARGET_ULOG: commit d4da843e6fad ("netfilter: kill remnants of
>    ulog targets");
>  - IP6_NF_TARGET_LOG: commit 6939c33a757b ("netfilter: merge ipt_LOG and
>    ip6_LOG into xt_LOG");
>  - AUTOFS_FS: commit 561c5cf9236a ("staging: Remove autofs3");
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Hi Krzysztof,

Thanks for your work, but I'm planning to regenerate those config
files anyway, and thus those options will go away anyway. 

Helge


> ---
>  arch/parisc/configs/712_defconfig           | 5 -----
>  arch/parisc/configs/a500_defconfig          | 6 ------
>  arch/parisc/configs/b180_defconfig          | 3 ---
>  arch/parisc/configs/c3000_defconfig         | 5 -----
>  arch/parisc/configs/default_defconfig       | 5 -----
>  arch/parisc/configs/generic-32bit_defconfig | 2 --
>  6 files changed, 26 deletions(-)
> 
> diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig
> index 143d02652792..493e03c2a219 100644
> --- a/arch/parisc/configs/712_defconfig
> +++ b/arch/parisc/configs/712_defconfig
> @@ -1,4 +1,3 @@
> -CONFIG_EXPERIMENTAL=y
>  # CONFIG_LOCALVERSION_AUTO is not set
>  CONFIG_SYSVIPC=y
>  CONFIG_POSIX_MQUEUE=y
> @@ -32,11 +31,9 @@ CONFIG_IP_PNP_DHCP=y
>  CONFIG_IP_PNP_BOOTP=y
>  CONFIG_INET_AH=m
>  CONFIG_INET_ESP=m
> -# CONFIG_INET_LRO is not set
>  CONFIG_INET_DIAG=m
>  # CONFIG_IPV6 is not set
>  CONFIG_NETFILTER=y
> -CONFIG_IP_NF_QUEUE=m
>  CONFIG_LLC2=m
>  CONFIG_NET_PKTGEN=m
>  CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
> @@ -94,7 +91,6 @@ CONFIG_PPDEV=m
>  # CONFIG_HW_RANDOM is not set
>  CONFIG_RAW_DRIVER=y
>  # CONFIG_HWMON is not set
> -CONFIG_VIDEO_OUTPUT_CONTROL=m
>  CONFIG_FB=y
>  CONFIG_FB_MODE_HELPERS=y
>  CONFIG_FB_TILEBLITTING=y
> @@ -181,7 +177,6 @@ CONFIG_MAGIC_SYSRQ=y
>  CONFIG_DEBUG_FS=y
>  CONFIG_DEBUG_KERNEL=y
>  CONFIG_DEBUG_MUTEXES=y
> -# CONFIG_RCU_CPU_STALL_DETECTOR is not set
>  CONFIG_CRYPTO_NULL=m
>  CONFIG_CRYPTO_TEST=m
>  CONFIG_CRYPTO_HMAC=y
> diff --git a/arch/parisc/configs/a500_defconfig b/arch/parisc/configs/a500_defconfig
> index 1a4f776b49b8..8d67e2373920 100644
> --- a/arch/parisc/configs/a500_defconfig
> +++ b/arch/parisc/configs/a500_defconfig
> @@ -1,4 +1,3 @@
> -CONFIG_EXPERIMENTAL=y
>  # CONFIG_LOCALVERSION_AUTO is not set
>  CONFIG_SYSVIPC=y
>  CONFIG_POSIX_MQUEUE=y
> @@ -43,21 +42,18 @@ CONFIG_IP_PNP_DHCP=y
>  CONFIG_IP_PNP_BOOTP=y
>  CONFIG_INET_AH=m
>  CONFIG_INET_ESP=m
> -# CONFIG_INET_LRO is not set
>  CONFIG_INET6_AH=m
>  CONFIG_INET6_ESP=m
>  CONFIG_INET6_IPCOMP=m
>  CONFIG_IPV6_TUNNEL=m
>  CONFIG_NETFILTER=y
>  # CONFIG_NETFILTER_XT_MATCH_DCCP is not set
> -CONFIG_IP_NF_QUEUE=m
>  CONFIG_IP_NF_IPTABLES=m
>  CONFIG_IP_NF_MATCH_ECN=m
>  CONFIG_IP_NF_MATCH_TTL=m
>  CONFIG_IP_NF_FILTER=m
>  CONFIG_IP_NF_TARGET_REJECT=m
>  CONFIG_IP_NF_TARGET_LOG=m
> -CONFIG_IP_NF_TARGET_ULOG=m
>  CONFIG_IP_NF_MANGLE=m
>  CONFIG_IP_NF_TARGET_ECN=m
>  CONFIG_IP_NF_RAW=m
> @@ -70,7 +66,6 @@ CONFIG_IP6_NF_MATCH_OPTS=m
>  CONFIG_IP6_NF_MATCH_HL=m
>  CONFIG_IP6_NF_MATCH_IPV6HEADER=m
>  CONFIG_IP6_NF_MATCH_RT=m
> -CONFIG_IP6_NF_TARGET_LOG=m
>  CONFIG_IP6_NF_FILTER=m
>  CONFIG_IP6_NF_TARGET_REJECT=m
>  CONFIG_IP6_NF_MANGLE=m
> @@ -192,7 +187,6 @@ CONFIG_DEBUG_FS=y
>  CONFIG_HEADERS_CHECK=y
>  CONFIG_DEBUG_KERNEL=y
>  # CONFIG_DEBUG_BUGVERBOSE is not set
> -# CONFIG_RCU_CPU_STALL_DETECTOR is not set
>  CONFIG_CRYPTO_NULL=m
>  CONFIG_CRYPTO_TEST=m
>  CONFIG_CRYPTO_HMAC=y
> diff --git a/arch/parisc/configs/b180_defconfig b/arch/parisc/configs/b180_defconfig
> index f1a0c25bef8d..0eca8208591c 100644
> --- a/arch/parisc/configs/b180_defconfig
> +++ b/arch/parisc/configs/b180_defconfig
> @@ -25,7 +25,6 @@ CONFIG_INET=y
>  CONFIG_IP_MULTICAST=y
>  CONFIG_IP_PNP=y
>  CONFIG_IP_PNP_BOOTP=y
> -# CONFIG_INET_LRO is not set
>  CONFIG_IPV6=y
>  CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
>  CONFIG_DEVTMPFS=y
> @@ -71,7 +70,6 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
>  CONFIG_PRINTER=y
>  # CONFIG_HW_RANDOM is not set
>  # CONFIG_HWMON is not set
> -CONFIG_VIDEO_OUTPUT_CONTROL=m
>  CONFIG_FB=y
>  CONFIG_FRAMEBUFFER_CONSOLE=y
>  CONFIG_LOGO=y
> @@ -105,6 +103,5 @@ CONFIG_NLS_UTF8=m
>  CONFIG_MAGIC_SYSRQ=y
>  CONFIG_HEADERS_CHECK=y
>  CONFIG_DEBUG_KERNEL=y
> -# CONFIG_RCU_CPU_STALL_DETECTOR is not set
>  CONFIG_SECURITY=y
>  # CONFIG_CRYPTO_ANSI_CPRNG is not set
> diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
> index 8e8f0e34f817..8337f5adf414 100644
> --- a/arch/parisc/configs/c3000_defconfig
> +++ b/arch/parisc/configs/c3000_defconfig
> @@ -1,4 +1,3 @@
> -CONFIG_EXPERIMENTAL=y
>  # CONFIG_LOCALVERSION_AUTO is not set
>  CONFIG_SYSVIPC=y
>  CONFIG_IKCONFIG=y
> @@ -31,13 +30,11 @@ CONFIG_INET=y
>  CONFIG_IP_MULTICAST=y
>  CONFIG_IP_PNP=y
>  CONFIG_IP_PNP_BOOTP=y
> -# CONFIG_INET_LRO is not set
>  # CONFIG_INET_DIAG is not set
>  CONFIG_INET6_IPCOMP=m
>  CONFIG_IPV6_TUNNEL=m
>  CONFIG_NETFILTER=y
>  CONFIG_NETFILTER_DEBUG=y
> -CONFIG_IP_NF_QUEUE=m
>  CONFIG_NET_PKTGEN=m
>  CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
>  CONFIG_DEVTMPFS=y
> @@ -111,7 +108,6 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
>  # CONFIG_HW_RANDOM is not set
>  CONFIG_RAW_DRIVER=y
>  # CONFIG_HWMON is not set
> -CONFIG_VIDEO_OUTPUT_CONTROL=m
>  CONFIG_FB=y
>  CONFIG_FRAMEBUFFER_CONSOLE=y
>  CONFIG_LOGO=y
> @@ -165,7 +161,6 @@ CONFIG_HEADERS_CHECK=y
>  CONFIG_DEBUG_KERNEL=y
>  CONFIG_DEBUG_MUTEXES=y
>  # CONFIG_DEBUG_BUGVERBOSE is not set
> -# CONFIG_RCU_CPU_STALL_DETECTOR is not set
>  CONFIG_CRYPTO_NULL=m
>  CONFIG_CRYPTO_TEST=m
>  CONFIG_CRYPTO_MD5=m
> diff --git a/arch/parisc/configs/default_defconfig b/arch/parisc/configs/default_defconfig
> index 310b6657e4ac..e28e3acbdff3 100644
> --- a/arch/parisc/configs/default_defconfig
> +++ b/arch/parisc/configs/default_defconfig
> @@ -1,4 +1,3 @@
> -CONFIG_EXPERIMENTAL=y
>  # CONFIG_LOCALVERSION_AUTO is not set
>  CONFIG_SYSVIPC=y
>  CONFIG_POSIX_MQUEUE=y
> @@ -41,7 +40,6 @@ CONFIG_IP_PNP_DHCP=y
>  CONFIG_IP_PNP_BOOTP=y
>  CONFIG_INET_AH=m
>  CONFIG_INET_ESP=m
> -# CONFIG_INET_LRO is not set
>  CONFIG_INET_DIAG=m
>  CONFIG_IPV6=y
>  CONFIG_INET6_AH=y
> @@ -114,7 +112,6 @@ CONFIG_PRINTER=m
>  CONFIG_PPDEV=m
>  # CONFIG_HW_RANDOM is not set
>  # CONFIG_HWMON is not set
> -CONFIG_VIDEO_OUTPUT_CONTROL=m
>  CONFIG_FB=y
>  CONFIG_FB_MODE_HELPERS=y
>  CONFIG_FB_TILEBLITTING=y
> @@ -151,7 +148,6 @@ CONFIG_USB_UHCI_HCD=y
>  CONFIG_EXT2_FS=y
>  CONFIG_EXT3_FS=y
>  # CONFIG_EXT3_FS_XATTR is not set
> -CONFIG_AUTOFS_FS=y
>  CONFIG_ISO9660_FS=y
>  CONFIG_JOLIET=y
>  CONFIG_VFAT_FS=y
> @@ -209,7 +205,6 @@ CONFIG_DEBUG_FS=y
>  CONFIG_HEADERS_CHECK=y
>  CONFIG_DEBUG_KERNEL=y
>  CONFIG_DEBUG_MUTEXES=y
> -# CONFIG_RCU_CPU_STALL_DETECTOR is not set
>  CONFIG_KEYS=y
>  CONFIG_CRYPTO_NULL=m
>  CONFIG_CRYPTO_TEST=m
> diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig
> index 8688ba7f5966..80aa10a9016e 100644
> --- a/arch/parisc/configs/generic-32bit_defconfig
> +++ b/arch/parisc/configs/generic-32bit_defconfig
> @@ -49,7 +49,6 @@ CONFIG_INET_ESP=m
>  # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
>  # CONFIG_INET_XFRM_MODE_TUNNEL is not set
>  # CONFIG_INET_XFRM_MODE_BEET is not set
> -# CONFIG_INET_LRO is not set
>  CONFIG_INET_DIAG=m
>  CONFIG_LLC2=m
>  # CONFIG_WIRELESS is not set
> @@ -152,7 +151,6 @@ CONFIG_I2C=y
>  CONFIG_POWER_SUPPLY=y
>  # CONFIG_HWMON is not set
>  CONFIG_AGP=y
> -CONFIG_VIDEO_OUTPUT_CONTROL=y
>  CONFIG_FB=y
>  CONFIG_FB_FOREIGN_ENDIAN=y
>  CONFIG_FB_MODE_HELPERS=y
> 

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix crash when calling PDC_PAT_MEM PDT firmware
 function
Date: Tue, 25 Jul 2017 18:20:54 +0200
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Commit c9c2877d08d9 ("parisc: Add Page Deallocation Table (PDT) support")
introduced the pdc_pat_mem_read_pd_pdt() firmware helper function, which
crashed the system because it trashed the stack if the
pdc_pat_mem_read_pd_retinfo struct was located on the stack (and which is
in size less than the required 32 64-bit values).

Fix it by using the pdc_result struct instead when calling firmware and copy
the return values back into the result struct when finished sucessfully.

While debugging this code I noticed that the pdc_type wasn't set correctly
either, so let's fix that too.

Fixes: c9c2877d08d9 ("parisc: Add Page Deallocation Table (PDT) support")
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 9819025..526ed90 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1481,12 +1481,19 @@ int pdc_pat_mem_read_pd_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
 		unsigned long offset)
 {
 	int retval;
-	unsigned long flags;
+	unsigned long flags, entries;
 
 	spin_lock_irqsave(&pdc_lock, flags);
 	retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_PD_READ,
-		__pa(&pret), __pa(pdt_entries_ptr),
+		__pa(&pdc_result), __pa(pdt_entries_ptr),
 		count, offset);
+
+	if (retval == PDC_OK) {
+		entries = min(pdc_result[0], count);
+		pret->actual_count_bytes = entries;
+		pret->pdt_entries = entries / sizeof(unsigned long);
+	}
+
 	spin_unlock_irqrestore(&pdc_lock, flags);
 
 	return retval;
diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
index f3a797e..be8bed60 100644
--- a/arch/parisc/kernel/pdt.c
+++ b/arch/parisc/kernel/pdt.c
@@ -112,10 +112,12 @@ void __init pdc_pdt_init(void)
 #ifdef CONFIG_64BIT
 		struct pdc_pat_mem_read_pd_retinfo pat_pret;
 
+		/* try old obsolete PAT firmware function first */
+		pdt_type = PDT_PAT_OLD;
 		ret = pdc_pat_mem_read_cell_pdt(&pat_pret, pdt_entry,
 			MAX_PDT_ENTRIES);
 		if (ret != PDC_OK) {
-			pdt_type = PDT_PAT_OLD;
+			pdt_type = PDT_PAT_NEW;
 			ret = pdc_pat_mem_read_pd_pdt(&pat_pret, pdt_entry,
 				MAX_PDT_TABLE_SIZE, 0);
 		}
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Subject: [PATCH] parisc: Add function to return DIMM slot of physical address
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Add a firmware wrapper function, which asks PDC firmware for the DIMM slot of a
physical address. This is needed to show users which DIMM module needs
replacement in case a broken DIMM was encountered.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pdcpat.h b/arch/parisc/include/asm/pdcpat.h
index 32e105f..e3c0586 100644
--- a/arch/parisc/include/asm/pdcpat.h
+++ b/arch/parisc/include/asm/pdcpat.h
@@ -150,7 +150,7 @@
 #define PDC_PAT_MEM_SETGM		9L /* Set Good Memory value        */
 #define PDC_PAT_MEM_ADD_PAGE		10L /* ADDs a page to the cell      */
 #define PDC_PAT_MEM_ADDRESS		11L /* Get Physical Location From   */
-                                    		 /* Memory Address               */
+					    /* Memory Address               */
 #define PDC_PAT_MEM_GET_TXT_SIZE   	12L /* Get Formatted Text Size   */
 #define PDC_PAT_MEM_GET_PD_TXT     	13L /* Get PD Formatted Text     */
 #define PDC_PAT_MEM_GET_CELL_TXT   	14L /* Get Cell Formatted Text   */
@@ -228,6 +228,17 @@ struct pdc_pat_mem_read_pd_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_PD_READ */
 	unsigned long pdt_entries;
 };
 
+struct pdc_pat_mem_phys_mem_location { /* PDC_PAT_MEM/PDC_PAT_MEM_ADDRESS */
+	u64 cabinet:8;
+	u64 ign1:8;
+	u64 ign2:8;
+	u64 cell_slot:8;
+	u64 ign3:8;
+	u64 dimm_slot:8; /* DIMM slot, e.g. 0x1A, 0x2B, show user hex value! */
+	u64 ign4:8;
+	u64 source:4; /* for mem: always 0x07 */
+	u64 source_detail:4; /* for mem: always 0x04 (SIMM or DIMM) */
+};
 
 struct pdc_pat_pd_addr_map_entry {
 	unsigned char entry_type;       /* 1 = Memory Descriptor Entry Type */
@@ -319,6 +330,9 @@ extern int pdc_pat_mem_read_cell_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
 extern int pdc_pat_mem_read_pd_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
 		unsigned long *pdt_entries_ptr, unsigned long count,
 		unsigned long offset);
+extern int pdc_pat_mem_get_dimm_phys_location(
+                struct pdc_pat_mem_phys_mem_location *pret,
+                unsigned long phys_addr);
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 526ed90..f622a31 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1498,6 +1498,31 @@ int pdc_pat_mem_read_pd_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
 
 	return retval;
 }
+
+/**
+ * pdc_pat_mem_get_dimm_phys_location - Get physical DIMM slot via PAT firmware
+ * @pret: ptr to hold returned information
+ * @phys_addr: physical address to examine
+ *
+ */
+int pdc_pat_mem_get_dimm_phys_location(
+		struct pdc_pat_mem_phys_mem_location *pret,
+		unsigned long phys_addr)
+{
+	int retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_ADDRESS,
+		__pa(&pdc_result), phys_addr);
+
+	if (retval == PDC_OK)
+		memcpy(pret, &pdc_result, sizeof(*pret));
+
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
 #endif /* CONFIG_64BIT */
 
 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Show DIMM slot number which holds broken memory
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The Page Deallocation Table (PDT) holds the physical addresses of all broken
memory addresses. With the physical address we now are able to show which DIMM
slot (e.g. 1a, 3c) actually holds the broken memory module so that users are
able to replace it.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
index 040d49b..fab374c 100644
--- a/arch/parisc/kernel/pdt.c
+++ b/arch/parisc/kernel/pdt.c
@@ -133,11 +133,18 @@ void __init pdc_pdt_init(void)
 	}
 
 	for (i = 0; i < pdt_status.pdt_entries; i++) {
-		if (i < 20)
-			pr_warn("PDT: BAD PAGE #%d at 0x%08lx (error_type = %lu)\n",
-				i,
-				pdt_entry[i] & PAGE_MASK,
-				pdt_entry[i] & 1);
+		struct pdc_pat_mem_phys_mem_location loc;
+
+		/* get DIMM slot number */
+		loc.dimm_slot = 0xff;
+		pdc_pat_mem_get_dimm_phys_location(&loc, pdt_entry[i]);
+
+		pr_warn("PDT: BAD PAGE #%d at 0x%08lx, "
+			"DIMM slot %02x (error_type = %lu)\n",
+			i,
+			pdt_entry[i] & PAGE_MASK,
+			loc.dimm_slot,
+			pdt_entry[i] & 1);
 
 		/* mark memory page bad */
 		memblock_reserve(pdt_entry[i] & PAGE_MASK, PAGE_SIZE);
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Suspend lockup detectors before system halt
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Some machines can't power off the machine, so disable the lockup detectors to
avoid this watchdog BUG to show up every few seconds:
watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [systemd-shutdow:1]

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.9+

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index b64d7d2..a45a67d 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -53,6 +53,7 @@
 #include <linux/uaccess.h>
 #include <linux/rcupdate.h>
 #include <linux/random.h>
+#include <linux/nmi.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -145,6 +146,7 @@ void machine_power_off(void)
 
 	/* prevent soft lockup/stalled CPU messages for endless loop. */
 	rcu_sysrq_start();
+	lockup_detector_suspend();
 	for (;;);
 }
 
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Subject: Re: [PATCH] parisc: Suspend lockup detectors before system halt
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Helge Deller wrote:
> Some machines can't power off the machine, so disable the lockup detectors
> to avoid this watchdog BUG to show up every few seconds:
> watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [systemd-shutdow:1]

I don't think HPPA is the only architecture that has this problem, so isn't 
there a generic solution? Or: is it time to add one?

Eike
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On 25.07.2017 21:47, Rolf Eike Beer wrote:
> Helge Deller wrote:
>> Some machines can't power off the machine, so disable the lockup detectors
>> to avoid this watchdog BUG to show up every few seconds:
>> watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [systemd-shutdow:1]
> 
> I don't think HPPA is the only architecture that has this problem,

Maybe.
I haven't heard of others yet, probably because most other architectures
do power off themselves, so they won't see this problem.

> so isn't there a generic solution? Or: is it time to add one?

Sure, you are welcome to test, post and discuss patches upstream if you like.
It's not a very critical issue, so I can wait with pushing my patch.

Helge
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On 25.07.2017 21:55, Helge Deller wrote:
> On 25.07.2017 21:47, Rolf Eike Beer wrote:
>> Helge Deller wrote:
>>> Some machines can't power off the machine, so disable the lockup detectors
>>> to avoid this watchdog BUG to show up every few seconds:
>>> watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [systemd-shutdow:1]
>>
>> I don't think HPPA is the only architecture that has this problem,
> 
> Maybe.
> I haven't heard of others yet, probably because most other architectures
> do power off themselves, so they won't see this problem.
> 
>> so isn't there a generic solution? Or: is it time to add one?
> 
> Sure, you are welcome to test, post and discuss patches upstream if you like.

By the way, I still see another lockup once (workqueue lockup) even after this patch.
In general it seems most lockup detectors don't unregister themselves in the
poweroff/shutdown phase (which might be intentional):  

[  123.664431] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 36s!
[  123.857429] Showing busy workqueues and worker pools:
[  123.917919] workqueue events: flags=0x0
[  123.963830]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256                 
[  123.967817]     pending: vmstat_shepherd                                         
[  124.082949] workqueue events_freezable: flags=0x4                                
[  124.139364]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256                 
[  124.143350]     pending: pci_pme_list_scan                                       
[  124.260448] workqueue events_power_efficient: flags=0x80
[  124.324059]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[  124.328045]     pending: neigh_periodic_work
[  124.447237] workqueue mm_percpu_wq: flags=0x8
[  124.499488]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[  124.510543]     pending: vmstat_update
[  124.616432] workqueue mpt_poll_1: flags=0x8
[  124.666595]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[  124.673079]     pending: mpt_fault_reset_work

Helge
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Helge Deller wrote:
> On 25.07.2017 21:47, Rolf Eike Beer wrote:
> > Helge Deller wrote:
> >> Some machines can't power off the machine, so disable the lockup
> >> detectors
> >> to avoid this watchdog BUG to show up every few seconds:
> >> watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [systemd-shutdow:1]
> > 
> > I don't think HPPA is the only architecture that has this problem,
> 
> Maybe.
> I haven't heard of others yet, probably because most other architectures
> do power off themselves, so they won't see this problem.
> 
> > so isn't there a generic solution? Or: is it time to add one?
> 
> Sure, you are welcome to test, post and discuss patches upstream if you
> like. It's not a very critical issue, so I can wait with pushing my patch.

I wont be able to do anything like that this week (maybe longer), so please go 
ahead with your patch to get rid of the annoying warning. Cleanups later.

Eike

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Helge noticed that we flush the TLB page in flush_cache_page but not in =
flush_cache_range
or flush_cache_mm.

For a long time, we have had random segmentation faults building =
packages on machines with
PA8800/8900 processors.  These machines only support equivalent aliases. =
 We don't see these
faults on machines that don't require strict coherency.  So, it appears =
TLB speculation sometimes
leads to cache corruption on machines that require coherency.

This patch adds TLB flushes to flush_cache_range and flush_cache_mm when =
coherency is
required.  We only flush the TLB in flush_cache_page when coherency is =
required.

The patch also optimizes flush_cache_range.  It turns out we always have =
the right context
to use flush_user_dcache_range_asm and flush_user_icache_range_asm.

The patch has been tested for some time on rp3440, rp3410 and A500-44.  =
It's been boot tested
on c8000.  No random segmentation faults were observed during testing.

Signed-off-by: John David Anglin <dave.anglin@gell.net>



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diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index c32a09095216..85a92db70afc 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -539,6 +539,10 @@ void flush_cache_mm(struct mm_struct *mm)
 	struct vm_area_struct *vma;
 	pgd_t *pgd;
=20
+	/* Flush the TLB to avoid speculation if coherency is required. =
*/
+	if (parisc_requires_coherency())
+		flush_tlb_all();
+
 	/* Flushing the whole cache on each cpu takes forever on
 	   rp3440, etc.  So, avoid it if the mm isn't too big.  */
 	if (mm_total_size(mm) >=3D parisc_cache_flush_threshold) {
@@ -577,33 +581,22 @@ void flush_cache_mm(struct mm_struct *mm)
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	unsigned long addr;
-	pgd_t *pgd;
-
 	BUG_ON(!vma->vm_mm->context);
=20
+	/* Flush the TLB to avoid speculation if coherency is required. =
*/
+	if (parisc_requires_coherency())
+		flush_tlb_range(vma, start, end);
+
 	if ((end - start) >=3D parisc_cache_flush_threshold) {
 		flush_cache_all();
 		return;
 	}
=20
-	if (vma->vm_mm->context =3D=3D mfsp(3)) {
-		flush_user_dcache_range_asm(start, end);
-		if (vma->vm_flags & VM_EXEC)
-			flush_user_icache_range_asm(start, end);
-		return;
-	}
+	BUG_ON(vma->vm_mm->context !=3D mfsp(3));
=20
-	pgd =3D vma->vm_mm->pgd;
-	for (addr =3D start & PAGE_MASK; addr < end; addr +=3D =
PAGE_SIZE) {
-		unsigned long pfn;
-		pte_t *ptep =3D get_ptep(pgd, addr);
-		if (!ptep)
-			continue;
-		pfn =3D pte_pfn(*ptep);
-		if (pfn_valid(pfn))
-			__flush_cache_page(vma, addr, PFN_PHYS(pfn));
-	}
+	flush_user_dcache_range_asm(start, end);
+	if (vma->vm_flags & VM_EXEC)
+		flush_user_icache_range_asm(start, end);
 }
=20
 void
@@ -612,7 +605,8 @@ flush_cache_page(struct vm_area_struct *vma, =
unsigned long vmaddr, unsigned long
 	BUG_ON(!vma->vm_mm->context);
=20
 	if (pfn_valid(pfn)) {
-		flush_tlb_page(vma, vmaddr);
+		if (parisc_requires_coherency())
+			flush_tlb_page(vma, vmaddr);
 		__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
 	}
 }

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Subject: [PATCH] parisc: Extend disabled preemption in copy_user_page
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It's always bothered me that we only disable preemption in =
copy_user_page around the
call to flush_dcache_page_asm.  This patch extends this to after the =
copy.

Signed-off-by: John David Anglin <dave.anglin@bell.net>



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diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index c32a09095216..85a92db70afc 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -453,8 +453,8 @@ void copy_user_page(void *vto, void *vfrom, unsigned =
long vaddr,
 	  before it can be accessed through the kernel mapping. */
 	preempt_disable();
 	flush_dcache_page_asm(__pa(vfrom), vaddr);
-	preempt_enable();
 	copy_page_asm(vto, vfrom);
+	preempt_enable();
 }
 EXPORT_SYMBOL(copy_user_page);
=20

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Subject: [PATCH] parisc: Optimize switch_mm
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We only need to switch contexts when prev !=3D next, and we don't need =
to disable interrupts
to do the check.

Signed-off-by: John David Anglin <dave.anglin@bell.net>



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diff --git a/arch/parisc/include/asm/mmu_context.h =
b/arch/parisc/include/asm/mmu_context.h
index a81226257878..b1dc6e3f0dd0 100644
--- a/arch/parisc/include/asm/mmu_context.h
+++ b/arch/parisc/include/asm/mmu_context.h
@@ -49,26 +49,19 @@ static inline void load_context(mm_context_t =
context)
 	mtctl(__space_to_prot(context), 8);
 }
=20
-static inline void switch_mm_irqs_off(struct mm_struct *prev,
+static inline void switch_mm(struct mm_struct *prev,
 		struct mm_struct *next, struct task_struct *tsk)
 {
+	unsigned long flags;
+
 	if (prev !=3D next) {
+		local_irq_save(flags);
 		mtctl(__pa(next->pgd), 25);
 		load_context(next->context);
+		local_irq_restore(flags);
 	}
 }
=20
-static inline void switch_mm(struct mm_struct *prev,
-		struct mm_struct *next, struct task_struct *tsk)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	switch_mm_irqs_off(prev, next, tsk);
-	local_irq_restore(flags);
-}
-#define switch_mm_irqs_off switch_mm_irqs_off

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Subject: Re: [PATCH] parisc: Optimize switch_mm
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* John David Anglin <dave.anglin@bell.net>:
> We only need to switch contexts when prev != next, and we don't need to disable interrupts
> to do the check.
> 
> Signed-off-by: John David Anglin <dave.anglin@bell.net>
> 
> 

> diff --git a/arch/parisc/include/asm/mmu_context.h b/arch/parisc/include/asm/mmu_context.h
> index a81226257878..b1dc6e3f0dd0 100644
> --- a/arch/parisc/include/asm/mmu_context.h
> +++ b/arch/parisc/include/asm/mmu_context.h
> @@ -49,26 +49,19 @@ static inline void load_context(mm_context_t context)
>  	mtctl(__space_to_prot(context), 8);
>  }
>  
> -static inline void switch_mm_irqs_off(struct mm_struct *prev,
> +static inline void switch_mm(struct mm_struct *prev,
>  		struct mm_struct *next, struct task_struct *tsk)
>  {
> +	unsigned long flags;
> +
>  	if (prev != next) {
> +		local_irq_save(flags);
>  		mtctl(__pa(next->pgd), 25);
>  		load_context(next->context);
> +		local_irq_restore(flags);
>  	}
>  }
>  
> -static inline void switch_mm(struct mm_struct *prev,
> -		struct mm_struct *next, struct task_struct *tsk)
> -{
> -	unsigned long flags;
> -
> -	local_irq_save(flags);
> -	switch_mm_irqs_off(prev, next, tsk);
> -	local_irq_restore(flags);
> -}
> -#define switch_mm_irqs_off switch_mm_irqs_off
> -
>  #define deactivate_mm(tsk,mm)	do { } while (0)
>  
>  static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)


Instead I'd then suggest the patch below.
The if-clause in switch_mm_irqs_off() will then probably be optimized
away by the compiler.

diff --git a/arch/parisc/include/asm/mmu_context.h b/arch/parisc/include/asm/mmu_context.h
index a812262..e4a6570 100644
--- a/arch/parisc/include/asm/mmu_context.h
+++ b/arch/parisc/include/asm/mmu_context.h
@@ -63,6 +63,9 @@ static inline void switch_mm(struct mm_struct *prev,
 {
 	unsigned long flags;
 
+	if (prev == next)
+		return;
+
 	local_irq_save(flags);
 	switch_mm_irqs_off(prev, next, tsk);
 	local_irq_restore(flags);
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On 2017-07-26, at 2:02 PM, Helge Deller wrote:

> Instead I'd then suggest the patch below.
> The if-clause in switch_mm_irqs_off() will then probably be optimized
> away by the compiler.
> 
> diff --git a/arch/parisc/include/asm/mmu_context.h b/arch/parisc/include/asm/mmu_context.h
> index a812262..e4a6570 100644
> --- a/arch/parisc/include/asm/mmu_context.h
> +++ b/arch/parisc/include/asm/mmu_context.h
> @@ -63,6 +63,9 @@ static inline void switch_mm(struct mm_struct *prev,
> {
> 	unsigned long flags;
> 
> +	if (prev == next)
> +		return;
> +
> 	local_irq_save(flags);
> 	switch_mm_irqs_off(prev, next, tsk);
> 	local_irq_restore(flags);

You are correct.  I missed the fact that switch_mm_irqs_off() is used by kernel/sched/core.c.

Maybe we should replace the "switch_mm_irqs_off(prev, next, tsk);" with the mtctl and load_context
lines to ensure that the if-clause is optimized?

Dave
--
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On 26.07.2017 20:49, John David Anglin wrote:
> On 2017-07-26, at 2:02 PM, Helge Deller wrote:
> 
>> Instead I'd then suggest the patch below.
>> The if-clause in switch_mm_irqs_off() will then probably be optimized
>> away by the compiler.
>>
>> diff --git a/arch/parisc/include/asm/mmu_context.h b/arch/parisc/include/asm/mmu_context.h
>> index a812262..e4a6570 100644
>> --- a/arch/parisc/include/asm/mmu_context.h
>> +++ b/arch/parisc/include/asm/mmu_context.h
>> @@ -63,6 +63,9 @@ static inline void switch_mm(struct mm_struct *prev,
>> {
>> 	unsigned long flags;
>>
>> +	if (prev == next)
>> +		return;
>> +
>> 	local_irq_save(flags);
>> 	switch_mm_irqs_off(prev, next, tsk);
>> 	local_irq_restore(flags);
> 
> You are correct.  I missed the fact that switch_mm_irqs_off() is used by kernel/sched/core.c.
> 
> Maybe we should replace the "switch_mm_irqs_off(prev, next, tsk);" with the mtctl and load_context
> lines to ensure that the if-clause is optimized?

I think we should look at the generated assembly, and if it's not optimized away replace it with mtctl/load_context.

Helge
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Subject: [GIT PULL] parisc architecture fixes for v4.13-rc3
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Hi Linus,

please pull important fixes and updates for the parisc architecture for 4.13-rc3 from

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.13-3

Changes:

The majority of lines changed are due to regenerated defconfig files.

The support for the Page Deallocation Table (PDT) which was merged in the merge
window for 4.13 contained a bug which crashes the kernel if a bad page is
reported by firmware. This is now fixed and the kernel messages will show which
memory slot holds the broken DIMM.

Commit 3a166fc2d4ef ("kbuild: handle libs-y archives separately from built-in.o
archives") broke linking the parisc kernel due to millicode symbols which can't
be reached then any longer.  This was fixed by modifying the parisc vmlinux.lds
linker script.

If the stack checker panics on stack overflow, avoid recursive panics.

Some parisc machines can't physically power off and thus instead start after
some time to flood the console by presumably detected soft lockups. Avoid this
by disabling the lockup detectors before entering the endless for-next loop.

Dave Anglin provided fixes which prevents TLB speculation on flushed pages
on PA8800/PA9000 CPUs.

Arvind Yadav sent a trivial patch to constify the attribute_group structure in
our firmware on-board-flash storage driver (pdc_stable.c).

Thanks,
Helge

----------------------------------------------------------------
Arvind Yadav (1):
      parisc: pdc_stable: constify attribute_group structures.

Helge Deller (7):
      parisc: Disable further stack checks when panic occurs during stack check
      parisc: Merge millicode routines via linker script
      parisc: regenerate defconfig files
      parisc: Fix crash when calling PDC_PAT_MEM PDT firmware function
      parisc: Add function to return DIMM slot of physical address
      parisc: Show DIMM slot number which holds broken memory module
      parisc: Suspend lockup detectors before system halt

John David Anglin (2):
      parisc: Prevent TLB speculation on flushed pages on CPUs that only support equivalent aliases
      parisc: Extend disabled preemption in copy_user_page

 arch/parisc/configs/712_defconfig           | 41 ++++++-----------------
 arch/parisc/configs/a500_defconfig          | 50 +++++++----------------------
 arch/parisc/configs/b180_defconfig          | 17 ++--------
 arch/parisc/configs/c3000_defconfig         | 38 ++++------------------
 arch/parisc/configs/c8000_defconfig         | 17 ++--------
 arch/parisc/configs/default_defconfig       | 49 +++++++---------------------
 arch/parisc/configs/generic-32bit_defconfig | 21 +-----------
 arch/parisc/configs/generic-64bit_defconfig | 48 +++++++++------------------
 arch/parisc/include/asm/pdcpat.h            | 16 ++++++++-
 arch/parisc/kernel/cache.c                  | 36 +++++++++------------
 arch/parisc/kernel/firmware.c               | 36 +++++++++++++++++++--
 arch/parisc/kernel/irq.c                    |  8 ++++-
 arch/parisc/kernel/pdt.c                    | 23 +++++++++----
 arch/parisc/kernel/process.c                |  2 ++
 arch/parisc/kernel/vmlinux.lds.S            |  2 ++
 drivers/parisc/pdc_stable.c                 |  2 +-
 16 files changed, 152 insertions(+), 254 deletions(-)
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Cc: mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com,
        jcmvbkbc@gmail.com, linux-kernel@vger.kernel.org,
        uclinux-h8-devel@lists.sourceforge.jp, linux-m68k@vger.kernel.org,
        openrisc@lists.librecores.org, linux-parisc@vger.kernel.org,
        sparclinux@vger.kernel.org
To: Babu Moger <babu.moger@oracle.com>, ysato@users.sourceforge.jp,
        geert@linux-m68k.org, jonas@southpole.se,
        stefan.kristiansson@saunalahti.fi, shorne@gmail.com,
        jejb@parisc-linux.org, viro@zeniv.linux.org.uk, monstr@monstr.eu
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Xref: news.gmane.org gmane.linux.ports.m68k:9459 gmane.linux.kernel:2534783 gmane.linux.ports.parisc:27597 gmane.linux.ports.sparc:26032
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On 13.06.2017 00:09, Babu Moger wrote:
> While working on enabling queued rwlock on SPARC, found
> this following code in include/asm-generic/qrwlock.h
> which uses CONFIG_CPU_BIG_ENDIAN to clear a byte.
> 
> static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
>  {
> 	return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
>  }
> 
> Problem is many of the fixed big endian architectures don't define
> CPU_BIG_ENDIAN and clears the wrong byte.
> 
> Define CPU_BIG_ENDIAN for all the fixed big endian architecture to fix it.
> 
> Also found few more references of this config parameter in
> drivers/of/base.c
> drivers/of/fdt.c
> drivers/tty/serial/earlycon.c
> drivers/tty/serial/serial_core.c
> Be aware that this may cause regressions if someone has worked-around
> problems in the above code already. Remove the work-around.
> 
> Here is our original discussion
> https://lkml.org/lkml/2017/5/24/620
> 
> Signed-off-by: Babu Moger <babu.moger@oracle.com>
> Suggested-by: Arnd Bergmann <arnd@arndb.de>
> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Acked-by: David S. Miller <davem@davemloft.net>
> Acked-by: Stafford Horne <shorne@gmail.com>

It seems for sparc it was already merged?

Anyway, you may add
Acked-by: Helge Deller <deller@gmx.de> # parisc

Helge

> ---
>  arch/frv/Kconfig      |    3 +++
>  arch/h8300/Kconfig    |    3 +++
>  arch/m68k/Kconfig     |    3 +++
>  arch/openrisc/Kconfig |    3 +++
>  arch/parisc/Kconfig   |    3 +++
>  arch/sparc/Kconfig    |    3 +++
>  6 files changed, 18 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
> index eefd9a4..1cce824 100644
> --- a/arch/frv/Kconfig
> +++ b/arch/frv/Kconfig
> @@ -17,6 +17,9 @@ config FRV
>  	select HAVE_DEBUG_STACKOVERFLOW
>  	select ARCH_NO_COHERENT_DMA_MMAP
>  
> +config CPU_BIG_ENDIAN
> +	def_bool y
> +
>  config ZONE_DMA
>  	bool
>  	default y
> diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
> index 3ae8525..5380ac8 100644
> --- a/arch/h8300/Kconfig
> +++ b/arch/h8300/Kconfig
> @@ -23,6 +23,9 @@ config H8300
>  	select HAVE_ARCH_HASH
>  	select CPU_NO_EFFICIENT_FFS
>  
> +config CPU_BIG_ENDIAN
> +	def_bool y
> +
>  config RWSEM_GENERIC_SPINLOCK
>  	def_bool y
>  
> diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
> index d140206..029a58b 100644
> --- a/arch/m68k/Kconfig
> +++ b/arch/m68k/Kconfig
> @@ -23,6 +23,9 @@ config M68K
>  	select OLD_SIGSUSPEND3
>  	select OLD_SIGACTION
>  
> +config CPU_BIG_ENDIAN
> +	def_bool y
> +
>  config RWSEM_GENERIC_SPINLOCK
>  	bool
>  	default y
> diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
> index 1e95920..a0f2e4a 100644
> --- a/arch/openrisc/Kconfig
> +++ b/arch/openrisc/Kconfig
> @@ -29,6 +29,9 @@ config OPENRISC
>  	select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1
>  	select NO_BOOTMEM
>  
> +config CPU_BIG_ENDIAN
> +	def_bool y
> +
>  config MMU
>  	def_bool y
>  
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index 531da9e..dda1f55 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -47,6 +47,9 @@ config PARISC
>  	  and later HP3000 series).  The PA-RISC Linux project home page is
>  	  at <http://www.parisc-linux.org/>.
>  
> +config CPU_BIG_ENDIAN
> +	def_bool y
> +
>  config MMU
>  	def_bool y
>  
> diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
> index 908f019..0d9dc49 100644
> --- a/arch/sparc/Kconfig
> +++ b/arch/sparc/Kconfig
> @@ -92,6 +92,9 @@ config ARCH_DEFCONFIG
>  config ARCH_PROC_KCORE_TEXT
>  	def_bool y
>  
> +config CPU_BIG_ENDIAN
> +	def_bool y
> +
>  config ARCH_ATU
>  	bool
>  	default y if SPARC64
> 


From - Thu Nov 08 21:40:04 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.parisc
Subject: parisc 4.13-git, BUG: sleeping function called from invalid context
 at mm/slab.h:416
Date: Sat, 29 Jul 2017 22:09:35 +0300 (EEST)
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I compiled yesterdays 4.13 git to test my parisc boxes after the parisc 
merge, and got the same BUG on both UP rp3410 and SMP rp3440.

Full dmesg and config for rp3440 are below.

[    0.000000] Linux version 4.13.0-rc2-00110-g0b5477d9dabd (mroos@rp3440) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0)) #111 SMP Fri Jul 28 12:19:51 EEST 2017
[    0.000000] unwind_init: start = 0x408368f4, end = 0x40874e94, entries = 15962
[    0.000000] FP[0] enabled: Rev 1 Model 20
[    0.000000] The 64-bit Kernel has started...
[    0.000000] Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: 64 bit PAT.
[    0.000000] PAT: Running on cell 0 and location 1.
[    0.000000] model 00008870 00000491 00000000 00000002 3e13dce90a9eb86d 100000f0 00000008 000000b2 000000b2
[    0.000000] vers  00000302
[    0.000000] CPUID vers 20 rev 5 (0x00000285)
[    0.000000] capabilities 0x35
[    0.000000] model 9000/800/rp3440  
[    0.000000] parisc_cache_init: Only equivalent aliasing supported!
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000003fffffff Size   1024 MB
[    0.000000]  1) Start 0x0000000100000000 End 0x00000002ffdfffff Size   8190 MB
[    0.000000]  2) Start 0x0000004040000000 End 0x00000040ffffffff Size   3072 MB
[    0.000000] Total Memory: 12286 MB
[    0.000000] PDT: size 3000, entries 0, status 0, dbe_loc 0xffffffffffffffff, good_mem 0
[    0.000000] PDT: Firmware reports all memory OK.
[    0.000000] On node 0 totalpages: 262144
[    0.000000] free_area_init_node: node 0, pgdat 4090d100, node_mem_map 413f200000
[    0.000000]   Normal zone: 3584 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 262144 pages, LIFO batch:31
[    0.000000] On node 1 totalpages: 2096640
[    0.000000] free_area_init_node: node 1, pgdat 4090dc50, node_mem_map 41381fff00
[    0.000000]   Normal zone: 28665 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 2096640 pages, LIFO batch:31
[    0.000000] On node 2 totalpages: 786432
[    0.000000] free_area_init_node: node 2, pgdat 4090e7a0, node_mem_map 41357ff700
[    0.000000]   Normal zone: 10752 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 786432 pages, LIFO batch:31
[    0.000000] percpu: Embedded 22 pages/cpu @00000041357a5000 s49680 r8192 d32240 u90112
[    0.000000] pcpu-alloc: s49680 r8192 d32240 u90112 alloc=22*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 3 zonelists in Zone order, mobility grouping on.  Total pages: 3102215
[    0.000000] Kernel command line: root=/dev/sda3 console=ttyS1 palo_kernel=2/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)
[    0.000000] Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[    0.000000] Memory: 12349052K/12580864K available (5196K kernel code, 2024K rwdata, 580K rodata, 1024K init, 520K bss, 231812K reserved, 0K cma-reserved)
[    0.000000] virtual kernel memory layout:
                   vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
                   memory  : 0x0000000040000000 - 0x0000004140000000   (266240 MB)
                     .init : 0x0000000040100000 - 0x0000000040200000   (1024 kB)
                     .data : 0x0000000040713000 - 0x000000004099e660   (2605 kB)
                     .text : 0x0000000040200000 - 0x0000000040713000   (5196 kB)
[    0.000000] SLUB: HWalign=16, Order=0-3, MinObjects=0, CPUs=4, Nodes=8
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS: 80
[    0.000007] sched_clock: 64 bits at 800MHz, resolution 1ns, wraps every 4398046511103ns
[    0.000479] Console: colour dummy device 160x64
[    0.000876] Calibrating delay loop... 1594.36 BogoMIPS (lpj=3188736)
[    0.048184] pid_max: default: 32768 minimum: 301
[    0.048744] Mount-cache hash table entries: 32768 (order: 6, 262144 bytes)
[    0.049545] Mountpoint-cache hash table entries: 32768 (order: 6, 262144 bytes)
[    0.053129] Hierarchical SRCU implementation.
[    0.053822] smp: Bringing up secondary CPUs ...
[    0.053933] smp: Brought up 3 nodes, 1 CPU
[    0.059062] devtmpfs: initialized
[    0.060143] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.060422] futex hash table entries: 1024 (order: 3, 32768 bytes)
[    0.072171] random: get_random_u32 called from 0x48fc004008bf0ad3 with crng_init=0
[    0.072484] NET: Registered protocol family 16
[    0.072868] Searching for devices...
[    0.204009] Found devices:
[    0.204068] 1. Storm Peak Slow at 0xfffffffffe780000 [128] { 0, 0x0, 0x887, 0x00004 }
[    0.204278] 2. Storm Peak Slow at 0xfffffffffe781000 [129] { 0, 0x0, 0x887, 0x00004 }
[    0.204774] 3. Storm Peak Slow at 0xfffffffffe798000 [152] { 0, 0x0, 0x887, 0x00004 }
[    0.208012] 4. Storm Peak Slow at 0xfffffffffe799000 [153] { 0, 0x0, 0x887, 0x00004 }
[    0.208233] 5. Everest Mako Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x0af, 0x00009 }
[    0.210460] 6. Pluto BC McKinley Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x880, 0x0000c }
[    0.212012] 7. Mercury PCI Bridge at 0xfffffffffed20000 [0/0] { 13, 0x0, 0x783, 0x0000a }
[    0.212244] 8. Mercury PCI Bridge at 0xfffffffffed22000 [0/1] { 13, 0x0, 0x783, 0x0000a }
[    0.216012] 9. Mercury PCI Bridge at 0xfffffffffed24000 [0/2] { 13, 0x0, 0x783, 0x0000a }
[    0.220012] 10. Mercury PCI Bridge at 0xfffffffffed26000 [0/3] { 13, 0x0, 0x783, 0x0000a }
[    0.222359] 11. Mercury PCI Bridge at 0xfffffffffed28000 [0/4] { 13, 0x0, 0x783, 0x0000a }
[    0.222593] 12. Mercury PCI Bridge at 0xfffffffffed2c000 [0/6] { 13, 0x0, 0x783, 0x0000a }
[    0.224012] 13. Mercury PCI Bridge at 0xfffffffffed2e000 [0/7] { 13, 0x0, 0x783, 0x0000a }
[    0.232012] 14. BMC IPMI Mgmt Ctlr at 0xfffffff0f05b0000 [16] { 15, 0x0, 0x004, 0x000c0 }
[    0.232240] Enabling PDC_PAT chassis codes support v0.05
[    0.822404] Logical CPU #0 is physical cpu #0 at location 0xffff0000ffff15 with hpa 0xfffffffffe780000
[    0.828010] Logical CPU #1 is physical cpu #1 at location 0xffff0000ffff15 with hpa 0xfffffffffe781000
[    0.828795] Releasing cpu 1 now, hpa=fffffffffe781000
[    0.888013] Logical CPU #2 is physical cpu #2 at location 0xffff0001ffff15 with hpa 0xfffffffffe798000
[    0.888790] Releasing cpu 2 now, hpa=fffffffffe798000
[    0.956016] Logical CPU #3 is physical cpu #3 at location 0xffff0001ffff15 with hpa 0xfffffffffe799000
[    0.956693] Releasing cpu 3 now, hpa=fffffffffe799000
[    1.056405] CPU(s): 4 out of 4 PA8800 (Mako) at 800.012900 MHz online
[    1.065217] Whole cache flush 4795887 cycles, flushing 9437184 bytes 947476 cycles
[    1.065224] Cache flush threshold set to 32768 KiB
[    1.065970] Whole TLB flush 18521 cycles, flushing 9437184 bytes 475044 cycles
[    1.065976] TLB flush threshold set to 1440 KiB
[    1.104062] SBA found Pluto 2.3 at 0xfffffffffed00000
[    1.252039] random: fast init done
[    1.304048] Mercury version TR3.2 (0x32) found at 0xfffffffffed20000
[    1.360177] LBA 0:0: PCI host bridge to bus 0000:00
[    1.360313] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    1.360475] pci_bus 0000:00: root bus resource [mem 0xffffffff80000000-0xffffffff8fffffff] (bus address [0x80000000-0x8fffffff])
[    1.360985] pci_bus 0000:00: root bus resource [bus 00-07]
[    1.364048] pci 0000:00:01.0: [1033:0035] type 00 class 0x0c0310
[    1.364094] pci 0000:00:01.0: reg 0x10: [mem 0xffffffff80002000-0xffffffff80002fff]
[    1.364227] pci 0000:00:01.0: supports D1 D2
[    1.364233] pci 0000:00:01.0: PME# supported from D0 D1 D2 D3hot
[    1.364362] pci 0000:00:01.1: [1033:0035] type 00 class 0x0c0310
[    1.364398] pci 0000:00:01.1: reg 0x10: [mem 0xffffffff80001000-0xffffffff80001fff]
[    1.364520] pci 0000:00:01.1: supports D1 D2
[    1.364526] pci 0000:00:01.1: PME# supported from D0 D1 D2 D3hot
[    1.364626] pci 0000:00:01.2: [1033:00e0] type 00 class 0x0c0320
[    1.364663] pci 0000:00:01.2: reg 0x10: [mem 0xffffffff80000000-0xffffffff800000ff]
[    1.364784] pci 0000:00:01.2: supports D1 D2
[    1.364790] pci 0000:00:01.2: PME# supported from D0 D1 D2 D3hot
[    1.364905] pci 0000:00:02.0: [1095:0649] type 00 class 0x01018f
[    1.364941] pci 0000:00:02.0: reg 0x10: [io  0x0d18-0x0d1f]
[    1.364960] pci 0000:00:02.0: reg 0x14: [io  0x0d24-0x0d27]
[    1.364979] pci 0000:00:02.0: reg 0x18: [io  0x0d10-0x0d17]
[    1.364998] pci 0000:00:02.0: reg 0x1c: [io  0x0d20-0x0d23]
[    1.365017] pci 0000:00:02.0: reg 0x20: [io  0x0d00-0x0d0f]
[    1.365088] pci 0000:00:02.0: supports D1 D2
[    1.388048] Mercury version TR3.2 (0x32) found at 0xfffffffffed22000
[    1.444193] LBA 0:1: PCI host bridge to bus 0000:20
[    1.444330] pci_bus 0000:20: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
[    1.444780] pci_bus 0000:20: root bus resource [mem 0xffffffff90000000-0xffffffff9fffffff] (bus address [0x90000000-0x9fffffff])
[    1.448018] pci_bus 0000:20: root bus resource [bus 20-27]
[    1.448194] pci 0000:20:01.0: [1000:0021] type 00 class 0x010000
[    1.448231] pci 0000:20:01.0: reg 0x10: [io  0x12100-0x121ff]
[    1.448252] pci 0000:20:01.0: reg 0x14: [mem 0xffffffff90015000-0xffffffff900153ff 64bit]
[    1.448273] pci 0000:20:01.0: reg 0x1c: [mem 0xffffffff90012000-0xffffffff90013fff 64bit]
[    1.448336] pci 0000:20:01.0: supports D1 D2
[    1.448458] pci 0000:20:01.1: [1000:0021] type 00 class 0x010000
[    1.448486] pci 0000:20:01.1: reg 0x10: [io  0x12000-0x120ff]
[    1.448507] pci 0000:20:01.1: reg 0x14: [mem 0xffffffff90014000-0xffffffff900143ff 64bit]
[    1.448528] pci 0000:20:01.1: reg 0x1c: [mem 0xffffffff90010000-0xffffffff90011fff 64bit]
[    1.448580] pci 0000:20:01.1: supports D1 D2
[    1.448685] pci 0000:20:02.0: [14e4:1645] type 00 class 0x020000
[    1.448720] pci 0000:20:02.0: reg 0x10: [mem 0xffffffff90000000-0xffffffff9000ffff 64bit]
[    1.448821] pci 0000:20:02.0: PME# supported from D3hot D3cold
[    1.468046] Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
[    1.528137] LBA 0:2: PCI host bridge to bus 0000:40
[    1.528276] pci_bus 0000:40: root bus resource [io  0x20000-0x2ffff] (bus address [0x0000-0xffff])
[    1.528728] pci_bus 0000:40: root bus resource [mem 0xffffffffa0000000-0xffffffffafffffff] (bus address [0xa0000000-0xafffffff])
[    1.531136] pci_bus 0000:40: root bus resource [bus 40-47]
[    1.552045] Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
[    1.608199] LBA 0:3: PCI host bridge to bus 0000:60
[    1.608335] pci_bus 0000:60: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0xffff])
[    1.608738] pci_bus 0000:60: root bus resource [mem 0xffffffffb0000000-0xffffffffbfffffff] (bus address [0xb0000000-0xbfffffff])
[    1.612017] pci_bus 0000:60: root bus resource [bus 60-67]
[    1.612193] pci 0000:60:01.0: [103c:1029] type 00 class 0x0c0400
[    1.612239] pci 0000:60:01.0: reg 0x14: [io  0x36100-0x361ff]
[    1.612255] pci 0000:60:01.0: reg 0x18: [io  0x36000-0x360ff]
[    1.612271] pci 0000:60:01.0: reg 0x1c: [mem 0xffffffffb0040000-0xffffffffb00401ff]
[    1.612296] pci 0000:60:01.0: reg 0x24: [mem 0xffffffffb0020000-0xffffffffb003ffff]
[    1.612312] pci 0000:60:01.0: reg 0x30: [mem 0xffffffffb0000000-0xffffffffb001ffff pref]
[    1.612360] pci 0000:60:01.0: supports D1
[    1.632047] Mercury version TR3.2 (0x32) found at 0xfffffffffed28000
[    1.668025] LBA: lmmio_space [0xffffffffc0000000-0xffffffffdfffffff] - new
[    1.692182] LBA 0:4: PCI host bridge to bus 0000:80
[    1.692321] pci_bus 0000:80: root bus resource [io  0x40000-0x4ffff] (bus address [0x0000-0xffff])
[    1.692732] pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffdfffffff] (bus address [0xc0000000-0xdfffffff])
[    1.695087] pci_bus 0000:80: root bus resource [bus 80-87]
[    1.695261] pci 0000:80:01.0: [103c:1029] type 00 class 0x0c0400
[    1.696050] pci 0000:80:01.0: reg 0x14: [io  0x48100-0x481ff]
[    1.696066] pci 0000:80:01.0: reg 0x18: [io  0x48000-0x480ff]
[    1.696081] pci 0000:80:01.0: reg 0x1c: [mem 0xffffffffc0040000-0xffffffffc00401ff]
[    1.696106] pci 0000:80:01.0: reg 0x24: [mem 0xffffffffc0020000-0xffffffffc003ffff]
[    1.696122] pci 0000:80:01.0: reg 0x30: [mem 0xffffffffc0000000-0xffffffffc001ffff pref]
[    1.696169] pci 0000:80:01.0: supports D1
[    1.716048] Mercury version TR3.2 (0x32) found at 0xfffffffffed2c000
[    1.772184] LBA 0:6: PCI host bridge to bus 0000:c0
[    1.772322] pci_bus 0000:c0: root bus resource [io  0x50000-0x5ffff] (bus address [0x0000-0xffff])
[    1.772740] pci_bus 0000:c0: root bus resource [mem 0xffffffffe0000000-0xffffffffefffffff] (bus address [0xe0000000-0xefffffff])
[    1.776018] pci_bus 0000:c0: root bus resource [bus c0-c7]
[    1.800048] Mercury version TR3.2 (0x32) found at 0xfffffffffed2e000
[    1.832031] LBA: lmmio_space [0xfffffffff0000000-0xfffffffffe77ffff] - new
[    1.856202] LBA 0:7: PCI host bridge to bus 0000:e0
[    1.856349] pci_bus 0000:e0: root bus resource [io  0x60000-0x6ffff] (bus address [0x0000-0xffff])
[    1.856835] pci_bus 0000:e0: root bus resource [mem 0xfffffffff0000000-0xfffffffffe77ffff] (bus address [0xf0000000-0xfe77ffff])
[    1.860058] pci_bus 0000:e0: root bus resource [bus e0-e7]
[    1.860241] pci 0000:e0:01.0: [103c:1290] type 00 class 0x078000
[    1.860325] pci 0000:e0:01.0: reg 0x18: [mem 0xfffffffff4051000-0xfffffffff405100f]
[    1.860562] pci 0000:e0:01.1: [103c:1048] type 00 class 0x070002
[    1.860605] pci 0000:e0:01.1: reg 0x10: [mem 0xfffffffff4050000-0xfffffffff4050fff]
[    1.860644] pci 0000:e0:01.1: reg 0x18: [mem 0xfffffffff4020000-0xfffffffff403ffff pref]
[    1.860871] pci 0000:e0:02.0: [1002:5159] type 00 class 0x030000
[    1.860913] pci 0000:e0:02.0: reg 0x10: [mem 0xfffffffff0000000-0xfffffffff3ffffff pref]
[    1.860935] pci 0000:e0:02.0: reg 0x14: [io  0x6e000-0x6e0ff]
[    1.860957] pci 0000:e0:02.0: reg 0x18: [mem 0xfffffffff4040000-0xfffffffff404ffff]
[    1.861025] pci 0000:e0:02.0: reg 0x30: [mem 0xfffffffff4000000-0xfffffffff401ffff pref]
[    1.861078] pci 0000:e0:02.0: supports D1 D2
[    1.863028] powersw: Soft power switch support not available.
[    1.866519] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    1.866519] pci 0000:e0:02.0: vgaarb: setting as boot VGA device
[    1.866519] pci 0000:e0:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
[    1.866519] pci 0000:e0:02.0: vgaarb: bridge control possible
[    1.868017] vgaarb: loaded
[    1.868260] SCSI subsystem initialized
[    1.874980] NET: Registered protocol family 2
[    1.875653] TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
[    1.877874] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    1.879654] TCP: Hash tables configured (established 131072 bind 65536)
[    1.880087] UDP hash table entries: 8192 (order: 6, 262144 bytes)
[    1.880869] UDP-Lite hash table entries: 8192 (order: 6, 262144 bytes)
[    1.881672] NET: Registered protocol family 1
[    1.881791] PCI: CLS 16 bytes
[    1.881952] clocksource: cr16_unstable: mask: 0xffffffffffffffff max_cycles: 0xb881ea1a86, max_idle_ns: 440795202977 ns
[    1.884014] Chassis warnings not supported.
[    1.884622] Performance monitoring counters enabled for Storm Peak Slow
[    1.885242] workingset: timestamp_bits=59 max_order=22 bucket_order=0
[    1.893755] cryptomgr_test (41) used greatest stack depth: 13928 bytes left
[    1.893755] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[    1.893755] io scheduler noop registered
[    1.893755] io scheduler deadline registered
[    1.893755] io scheduler cfq registered (default)
[    1.900030] PDC Stable Storage facility v0.30
[    1.936053] BUG: sleeping function called from invalid context at mm/slab.h:416
[    1.936243] in_atomic(): 1, irqs_disabled(): 0, pid: 1, name: swapper/0
[    1.936601] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 4.13.0-rc2-00110-g0b5477d9dabd #111
[    1.936828] Backtrace:
[    1.936889]  [<0000000040217ac8>] show_stack+0x20/0x38
[    1.939036]  [<00000000406fbbb0>] dump_stack+0xb0/0x128
[    1.939174]  [<0000000040274090>] ___might_sleep+0x180/0x1b8
[    1.940000]  [<0000000040274144>] __might_sleep+0x7c/0xe8
[    1.940000]  [<0000000040373874>] kmem_cache_alloc+0x14c/0x1e0
[    1.940000]  [<0000000040419514>] __kernfs_new_node+0x84/0x1b8
[    1.940000]  [<000000004041b09c>] kernfs_new_node+0x3c/0x78
[    1.940000]  [<000000004041e040>] kernfs_create_link+0x40/0xd8
[    1.940000]  [<000000004041f320>] sysfs_do_create_link_sd.isra.0+0xb0/0x130
[    1.940000]  [<000000004041f3d4>] sysfs_create_link+0x34/0x58
[    1.940000]  [<000000004011b4a4>] pdc_stable_init+0x2c4/0x458
[    1.940000]  [<0000000040200250>] do_one_initcall+0x70/0x1d8
[    1.940000]  [<0000000040101644>] kernel_init_freeable+0x27c/0x390
[    1.940000]  [<000000004020be44>] kernel_init+0x24/0x1c0
[    1.940000]  [<0000000040204020>] end_fault_vector+0x20/0x28
[    1.940000]  [<00000000406fb6a8>] cpumask_next_and+0x70/0xb8

[    1.976042] STI GSC/PCI core graphics driver Version 0.9b
[    1.976438] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    2.000425] 0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 27, base_baud = 115200) is a 16450
[    2.044038] 0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 27, base_baud = 115200) is a 16550A
[    2.044568] console [ttyS1] enabled
[    2.045095] bootconsole [ttyB0] disabled
[    2.068028] 0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 27, base_baud = 115200) is a 16550A
[    2.088027] 0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 27, base_baud = 115200) is a 16550A
[    2.296029] sym0: <1010-66> rev 0x1 at pci 0000:20:01.0 irq 22
[    2.301361] sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
[    2.336000] sym0: SCSI BUS has been reset.
[    2.340019] scsi host0: sym-2.2.3
[    5.424073] scsi 0:0:0:0: Direct-Access     COMPAQ   BF07285A36       HPB7 PQ: 0 ANSI: 3
[    5.424252] scsi target0:0:0: tagged command queuing enabled, command queue depth 16.
[    5.424704] scsi target0:0:0: Beginning Domain Validation
[    5.428044] scsi target0:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
[    5.436025] scsi target0:0:0: Ending Domain Validation
[    9.808029] sym1: <1010-66> rev 0x1 at pci 0000:20:01.1 irq 23
[    9.810080] sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
[    9.848000] sym1: SCSI BUS has been reset.
[    9.848017] scsi host1: sym-2.2.3
[   14.388042] random: crng init done
[   17.328586] mousedev: PS/2 mouse device common for all mice
[   17.328293] sd 0:0:0:0: [sda] 142264000 512-byte logical blocks: (72.8 GB/67.8 GiB)
[   17.332045] sd 0:0:0:0: [sda] Write Protect is off
[   17.332145] sd 0:0:0:0: [sda] Mode Sense: d3 00 10 08
[   17.332175] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   17.336333] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[   17.336567] NET: Registered protocol family 17
[   17.353491] rtc-generic rtc-generic: setting system clock to 2017-07-29 18:44:31 UTC (1501353871)
[   17.372239]  sda: sda1 sda2 sda3 sda4
[   17.404040] sd 0:0:0:0: [sda] Attached SCSI disk
[   17.404470] EXT4-fs (sda3): couldn't mount as ext3 due to feature incompatibilities
[   17.408031] EXT4-fs (sda3): couldn't mount as ext2 due to feature incompatibilities
[   17.435256] EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
[   17.435482] VFS: Mounted root (ext4 filesystem) readonly on device 8:3.
[   17.448098] devtmpfs: mounted
[   17.452519] Freeing unused kernel memory: 1024K
[   17.572017] Write protecting the kernel read-only data: 580k
[   18.324016] kbd_mode (63) used greatest stack depth: 10472 bytes left
[   18.581972] loadkeys (64) used greatest stack depth: 8920 bytes left
[   18.586115] init-early.sh (62) used greatest stack depth: 8408 bytes left
[   26.522476] libata version 3.00 loaded.
[   26.685858] pps_core: LinuxPPS API ver. 1 registered
[   26.685858] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[   26.692311] pata_cmd64x 0000:00:02.0: Secondary port is disabled
[   26.694826] scsi host2: pata_cmd64x
[   26.695505] scsi host3: pata_cmd64x
[   26.695505] ata1: PATA max UDMA/100 cmd 0xd18 ctl 0xd24 bmdma 0xd00 irq 21
[   26.695505] ata2: DUMMY
[   26.699889] pata_cmd64x: active 10 recovery 10 setup 3.
[   26.699889] pata_cmd64x: active 10 recovery 10 setup 3.
[   26.798352] PTP clock support registered
[   26.888657] ata1.00: ATAPI: DV-28E-C, C.4D, max UDMA/33
[   26.888686] pata_cmd64x: active 3 recovery 1 setup 1.
[   26.940480] ata1.00: configured for UDMA/33
[   26.984243] scsi 2:0:0:0: CD-ROM            TEAC     DV-28E-C         C.4D PQ: 0 ANSI: 5
[   27.068278] tg3.c:v3.137 (May 11, 2014)
[   28.273182] tg3 0000:20:02.0 eth0: Tigon3 [partno(BCM95700A6) rev 0105] (PCI:66MHz:64-bit) MAC address 00:30:6e:4b:41:a3
[   28.273196] tg3 0000:20:02.0 eth0: attached PHY is 5701 (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0])
[   28.273203] tg3 0000:20:02.0 eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[0]
[   28.273210] tg3 0000:20:02.0 eth0: dma_rwctrl[76ff2d0f] dma_mask[32-bit]
[   29.816146] EXT4-fs (sda3): re-mounted. Opts: (null)
[   30.748085] Adding 2745180k swap on /dev/sda4.  Priority:-1 extents:1 across:2745180k 
[   31.128056] EXT4-fs (sda2): mounting ext2 file system using the ext4 subsystem
[   31.132440] EXT4-fs (sda2): mounted filesystem without journal. Opts: (null)
[   33.289731] dmesg (782) used greatest stack depth: 7992 bytes left
[   44.572376] tg3 0000:20:02.0 eth0: Link is up at 100 Mbps, full duplex
[   44.572385] tg3 0000:20:02.0 eth0: Flow control is off for TX and off for RX
[   56.820980] NET: Registered protocol family 10
[   56.823020] Segment Routing with IPv6

#
# Automatically generated file; DO NOT EDIT.
# Linux/parisc 4.13.0-rc2 Kernel Configuration
#
CONFIG_PARISC=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_LOW_RES=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_PGTABLE_LEVELS=3
CONFIG_SYS_SUPPORTS_HUGETLBFS=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE="hppa64-linux-"
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_DEFAULT_HOSTNAME="none"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_FHANDLE=y
# CONFIG_USELIB is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_CLOCKEVENTS=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ is not set
CONFIG_HIGH_RES_TIMERS=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
# CONFIG_TASKS_RCU is not set
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
# CONFIG_BUILD_BIN2C is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=17
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_GENERIC_SCHED_CLOCK=y
CONFIG_CGROUPS=y
# CONFIG_MEMCG is not set
# CONFIG_BLK_CGROUP is not set
# CONFIG_CGROUP_SCHED is not set
# CONFIG_CGROUP_PIDS is not set
# CONFIG_CGROUP_RDMA is not set
# CONFIG_CGROUP_FREEZER is not set
# CONFIG_CGROUP_HUGETLB is not set
# CONFIG_CPUSETS is not set
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
# CONFIG_CGROUP_BPF is not set
# CONFIG_CGROUP_DEBUG is not set
# CONFIG_SOCK_CGROUP_DATA is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW=y
CONFIG_BPF=y
# CONFIG_EXPERT is not set
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_POSIX_TIMERS=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_ABSOLUTE_PERCPU is not set
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_BPF_SYSCALL=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_USERFAULTFD=y
CONFIG_PCI_QUIRKS=y
CONFIG_MEMBARRIER=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
# CONFIG_PC104 is not set

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
CONFIG_SLAB_MERGE_DEFAULT=y
# CONFIG_SLAB_FREELIST_RANDOM is not set
CONFIG_SLUB_CPU_PARTIAL=y
# CONFIG_SYSTEM_DATA_VERIFICATION is not set
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_THIN_ARCHIVES=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_HASH=y
# CONFIG_ISA_BUS_API is not set
CONFIG_CLONE_BACKWARDS=y
CONFIG_ARCH_NO_COHERENT_DMA_MMAP=y
CONFIG_CPU_NO_EFFICIENT_FFS=y
# CONFIG_HAVE_ARCH_VMAP_STACK is not set
# CONFIG_ARCH_OPTIONAL_KERNEL_RWX is not set
# CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
# CONFIG_ARCH_HAS_STRICT_MODULE_RWX is not set
# CONFIG_REFCOUNT_FULL is not set

#
# GCOV-based kernel profiling
#
# CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
# CONFIG_MODULE_COMPRESS is not set
CONFIG_TRIM_UNUSED_KSYMS=y
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_BLOCK=y
CONFIG_BLK_SCSI_REQUEST=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_CMDLINE_PARSER is not set
# CONFIG_BLK_WBT is not set
# CONFIG_BLK_SED_OPAL is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_BLOCK_COMPAT=y
CONFIG_BLK_MQ_PCI=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_MQ_IOSCHED_DEADLINE is not set
# CONFIG_MQ_IOSCHED_KYBER is not set
# CONFIG_IOSCHED_BFQ is not set
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
# CONFIG_MLONGCALLS is not set
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
CONFIG_SMP=y
CONFIG_IRQSTACKS=y
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_SCHED_HRTICK=y
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_NO_BOOTMEM=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
# CONFIG_ARCH_WANTS_THP_SWAP is not set
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
# CONFIG_CMA is not set
# CONFIG_ZPOOL is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSMALLOC is not set
CONFIG_MAX_STACK_SIZE_MB=80
# CONFIG_IDLE_PAGE_TRACKING is not set
# CONFIG_PERCPU_STATS is not set
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_AUDIT_ARCH=y
CONFIG_NR_CPUS=4

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
# CONFIG_GSC is not set
CONFIG_PCI=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_PCI_BUS_ADDR_T_64BIT=y
CONFIG_PCI_MSI=y
# CONFIG_PCI_MSI_IRQ_DOMAIN is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
# CONFIG_HOTPLUG_PCI is not set

#
# DesignWare PCI Core Support
#

#
# PCI host controller drivers
#

#
# PCI Endpoint
#
# CONFIG_PCI_ENDPOINT is not set

#
# PCI switch controller drivers
#
# CONFIG_PCI_SW_SWITCHTEC is not set
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_TLS is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=m
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=m
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=m
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
# CONFIG_NET_UDP_TUNNEL is not set
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=m
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=m
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
# CONFIG_INET6_ESP_OFFLOAD is not set
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
CONFIG_IPV6_VTI=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_FOU is not set
# CONFIG_IPV6_FOU_TUNNEL is not set
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NET_PTP_CLASSIFY=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
CONFIG_NETLINK_DIAG=m
# CONFIG_MPLS is not set
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
# CONFIG_NET_NCSI is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
# CONFIG_CGROUP_NET_PRIO is not set
# CONFIG_CGROUP_NET_CLASSID is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
# CONFIG_STREAM_PARSER is not set
CONFIG_FIB_RULES=y
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
# CONFIG_PSAMPLE is not set
# CONFIG_NET_IFE is not set
CONFIG_LWTUNNEL=y
# CONFIG_LWTUNNEL_BPF is not set
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
# CONFIG_NET_DEVLINK is not set
CONFIG_MAY_USE_DEVLINK=y

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
# CONFIG_DMA_SHARED_BUFFER is not set

#
# Bus devices
#
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
# CONFIG_BLK_DEV is not set
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_NVME_FC is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ENCLOSURE_SERVICES is not set
CONFIG_HP_ILO=m
# CONFIG_SRAM is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
CONFIG_EEPROM_93CX6=m
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#

#
# Altera FPGA firmware download module
#

#
# Intel MIC Bus Driver
#

#
# SCIF Bus Driver
#

#
# VOP Bus Driver
#

#
# Intel MIC Host Driver
#

#
# Intel MIC Card Driver
#

#
# SCIF Driver
#

#
# Intel MIC Coprocessor State Management (COSM) Drivers
#

#
# VOP Driver
#
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
# CONFIG_CXL_BASE is not set
# CONFIG_CXL_AFU_DRIVER_OPS is not set
# CONFIG_CXL_LIB is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_SMARTPQI is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=m
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
# CONFIG_SATA_PMP is not set

#
# Controllers with non-SFF native interface
#
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
# CONFIG_ATA_PIIX is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
CONFIG_PATA_CMD64X=m
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_LEGACY is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_MACSEC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_TUN is not set
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
# CONFIG_NLMON is not set
# CONFIG_ARCNET is not set

#
# CAIF transport drivers
#

#
# Distributed Switch Architecture drivers
#
CONFIG_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_AGERE is not set
# CONFIG_NET_VENDOR_ALACRITECH is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_ALTERA_TSE is not set
# CONFIG_NET_VENDOR_AMAZON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_AURORA is not set
# CONFIG_NET_CADENCE is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
CONFIG_TIGON3=m
CONFIG_TIGON3_HWMON=y
# CONFIG_BNX2X is not set
# CONFIG_BNXT is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CAVIUM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_DNET is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EZCHIP is not set
# CONFIG_NET_VENDOR_EXAR is not set
# CONFIG_NET_VENDOR_HP is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_PACKET_ENGINE is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RENESAS is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_ROCKER is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_NET_VENDOR_SYNOPSYS is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_MDIO_DEVICE=m
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_THUNDER is not set
CONFIG_PHYLIB=m

#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
# CONFIG_AQUANTIA_PHY is not set
# CONFIG_AT803X_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_CORTINA_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
# CONFIG_FIXED_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_INTEL_XWAY_PHY is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_MARVELL_10G_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MICROCHIP_PHY is not set
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_TERANETICS_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_XILINX_GMII2RGMII is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Host-side USB support is needed for USB Network Adapter support
#
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set
# CONFIG_NVM is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_ATKBD_HP_KEYCODES=y
# CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_PS2_FOCALTECH=y
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
# CONFIG_RMI4_CORE is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVMEM is not set
CONFIG_DEVKMEM=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
# CONFIG_SERIAL_8250_FSL is not set
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_RT288X is not set
# CONFIG_SERIAL_8250_MOXA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_UARTLITE is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_XILLYBUS is not set

#
# I2C support
#
# CONFIG_I2C is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
CONFIG_PPS=m
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_GPIO is not set

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=m

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
# CONFIG_POWER_AVS is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=m
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_ASPEED is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_NCT6683 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_DRM is not set

#
# ACP (Audio CoProcessor) Configuration
#
# CONFIG_DRM_LIB_RANDOM is not set

#
# Frame buffer Devices
#
# CONFIG_FB is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
# CONFIG_VGASTATE is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_STI_CONSOLE=y
# CONFIG_SOUND is not set

#
# HID support
#
# CONFIG_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#

#
# SPI RTC drivers
#

#
# SPI and I2C RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_RTC_DRV_FTRTC010 is not set

#
# HID Sensor RTC drivers
#
# CONFIG_DMADEVICES is not set

#
# DMABUF options
#
# CONFIG_SYNC_FILE is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VIRT_DRIVERS is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV_TSCPAGE is not set
# CONFIG_STAGING is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
# CONFIG_ATMEL_PIT is not set
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set

#
# Rpmsg drivers
#

#
# SOC (System On Chip) specific Drivers
#

#
# Broadcom SoC drivers
#

#
# i.MX SoC drivers
#
# CONFIG_SUNXI_SRAM is not set
# CONFIG_SOC_TI is not set
# CONFIG_SOC_ZTE is not set
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
CONFIG_ARM_GIC_MAX_NR=1
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set
# CONFIG_RAS is not set

#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_DAX is not set
CONFIG_NVMEM=y
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set

#
# FPGA Configuration Support
#
# CONFIG_FPGA is not set

#
# FSI support
#
# CONFIG_FSI is not set

#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_ENCRYPTION is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_FS_DAX is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
CONFIG_MANDATORY_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
# CONFIG_CONFIGFS_FS is not set
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
# CONFIG_NLS is not set

#
# Kernel hacking
#

#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set

#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_PAGE_OWNER is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_MAGIC_SYSRQ is not set
CONFIG_DEBUG_KERNEL=y

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_RODATA_TEST is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
CONFIG_DEBUG_STACK_USAGE=y
# CONFIG_DEBUG_VM is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Lockups and Hangs
#
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
# CONFIG_DETECT_HUNG_TASK is not set
CONFIG_WQ_WATCHDOG=y
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHED_INFO is not set
# CONFIG_SCHEDSTATS is not set
CONFIG_SCHED_STACK_END_CHECK=y
# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_STACKTRACE is not set
CONFIG_WARN_ALL_UNSEEDED_RANDOM=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_PI_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
# CONFIG_PROVE_RCU is not set
# CONFIG_TORTURE_TEST is not set
# CONFIG_RCU_PERF_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=21
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set

#
# Runtime Testing
#
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_TEST_SORT is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_HASH is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_SYSCTL is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_MEMTEST is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# CONFIG_TEST_KMOD is not set
# CONFIG_SAMPLES is not set
# CONFIG_ARCH_WANTS_UBSAN_NO_NULL is not set
CONFIG_UBSAN=y
CONFIG_UBSAN_ALIGNMENT=y
CONFIG_UBSAN_NULL=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_SECCOMP is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HARDENED_USERCOPY=y
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=m
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_ACOMP2=y
# CONFIG_CRYPTO_RSA is not set
# CONFIG_CRYPTO_DH is not set
# CONFIG_CRYPTO_ECDH is not set
CONFIG_CRYPTO_MANAGER=m
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_GF128MUL is not set
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_NULL2=y
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_MCRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
# CONFIG_CRYPTO_SEQIV is not set
CONFIG_CRYPTO_ECHAINIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_KEYWRAP is not set

#
# Hash modes
#
# CONFIG_CRYPTO_CMAC is not set
CONFIG_CRYPTO_HMAC=m
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRCT10DIF is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_POLY1305 is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=m
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_SHA3 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_TI is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_CHACHA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DRBG_MENU=m
CONFIG_CRYPTO_DRBG_HMAC=y
# CONFIG_CRYPTO_DRBG_HASH is not set
CONFIG_CRYPTO_DRBG=m
CONFIG_CRYPTO_JITTERENTROPY=m
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_USER_API_RNG is not set
# CONFIG_CRYPTO_USER_API_AEAD is not set
# CONFIG_CRYPTO_HW is not set

#
# Certificates for signature checking
#
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
# CONFIG_HAVE_ARCH_BITREVERSE is not set
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IO=y
# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC4 is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
# CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=m
CONFIG_ZLIB_DEFLATE=m
# CONFIG_XZ_DEC is not set
# CONFIG_XZ_DEC_BCJ is not set
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
# CONFIG_IRQ_POLL is not set
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_SG_SPLIT is not set
CONFIG_SG_POOL=y
# CONFIG_ARCH_HAS_SG_CHAIN is not set
CONFIG_SBITMAP=y

-- 
Meelis Roos (mroos@linux.ee)
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On 2017-07-29, at 3:09 PM, Meelis Roos wrote:

> [    1.940000]  [<000000004011b4a4>] pdc_stable_init+0x2c4/0x458

I don't see this symbol in my build.  I see pdc_stable_initialize.

Do you have a patch installed?

Dave
--
John David Anglin	dave.anglin@bell.net



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Subject: Re: parisc 4.13-git, BUG: sleeping function called from invalid
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On Sat, 2017-07-29 at 15:53 -0400, John David Anglin wrote:
> On 2017-07-29, at 3:09 PM, Meelis Roos wrote:
> 
> > 
> > [    1.940000]  [<000000004011b4a4>] pdc_stable_init+0x2c4/0x458
> 
> I don't see this symbol in my build.  I see pdc_stable_initialize.
> 
> Do you have a patch installed?

pdc_stable_init() is in drivers/parisc/pdc_stable.c (it's the module
initialization function).  It would be called as part of the boot
sequence if the module were built in.

James

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From - Thu Nov 08 21:40:04 2018
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Subject: Re: parisc 4.13-git, BUG: sleeping function called from invalid
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> > [    1.940000]  [<000000004011b4a4>] pdc_stable_init+0x2c4/0x458
> 
> I don't see this symbol in my build.  I see pdc_stable_initialize.
> 
> Do you have a patch installed?

No, pristine v4.13-rc2-110-g0b5477d9dabd git.

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:40:04 2018
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Subject: Re: parisc 4.13-git, BUG: sleeping function called from invalid context at mm/slab.h:416
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On 2017-07-30, at 2:47 AM, Meelis Roos wrote:

>>> [    1.940000]  [<000000004011b4a4>] pdc_stable_init+0x2c4/0x458
>> 
>> I don't see this symbol in my build.  I see pdc_stable_initialize.
>> 
>> Do you have a patch installed?
> 
> No, pristine v4.13-rc2-110-g0b5477d9dabd git.


James is correct about pdc_stable_init.  It is enabled by CONFIG_PDC_STABLE.

In the backtrace,

[    1.936053] BUG: sleeping function called from invalid context at mm/slab.h:416
[    1.936243] in_atomic(): 1, irqs_disabled(): 0, pid: 1, name: swapper/0
[    1.936601] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 4.13.0-rc2-00110-g0b5477d9dabd #111
[    1.936828] Backtrace:
[    1.936889]  [<0000000040217ac8>] show_stack+0x20/0x38
[    1.939036]  [<00000000406fbbb0>] dump_stack+0xb0/0x128
[    1.939174]  [<0000000040274090>] ___might_sleep+0x180/0x1b8
[    1.940000]  [<0000000040274144>] __might_sleep+0x7c/0xe8
[    1.940000]  [<0000000040373874>] kmem_cache_alloc+0x14c/0x1e0
[    1.940000]  [<0000000040419514>] __kernfs_new_node+0x84/0x1b8
[    1.940000]  [<000000004041b09c>] kernfs_new_node+0x3c/0x78
[    1.940000]  [<000000004041e040>] kernfs_create_link+0x40/0xd8
[    1.940000]  [<000000004041f320>] sysfs_do_create_link_sd.isra.0+0xb0/0x130
[    1.940000]  [<000000004041f3d4>] sysfs_create_link+0x34/0x58
[    1.940000]  [<000000004011b4a4>] pdc_stable_init+0x2c4/0x458

I don't know how we got to sysfs_create_link.  It is probably from here:

        /* Don't forget the root entries */
        error = sysfs_create_group(stable_kobj, &pdcs_attr_group);

Presumably, this is the sleeping function but it's not clear how the incorrect context arises.

Maybe there is an errant spin_lock somewhere.  For example, see:
https://lkml.org/lkml/2012/3/29/101
It might be in a unrelated routine.

Since this code hasn't changed in a long time, it should be possible to bisect problem.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:40:05 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc 4.13-git, BUG: sleeping function called from invalid
 context at mm/slab.h:416
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To: John David Anglin <dave.anglin@bell.net>,
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On Sun, 2017-07-30 at 08:27 -0400, John David Anglin wrote:
> On 2017-07-30, at 2:47 AM, Meelis Roos wrote:
> 
> > 
> > > 
> > > > 
> > > > [    1.940000]  [<000000004011b4a4>]
> > > > pdc_stable_init+0x2c4/0x458
> > > 
> > > I don't see this symbol in my build.  I see
> > > pdc_stable_initialize.
> > > 
> > > Do you have a patch installed?
> > 
> > No, pristine v4.13-rc2-110-g0b5477d9dabd git.
> 
> 
> James is correct about pdc_stable_init.  It is enabled by
> CONFIG_PDC_STABLE.
> 
> In the backtrace,
> 
> [    1.936053] BUG: sleeping function called from invalid context at
> mm/slab.h:416
> [    1.936243] in_atomic(): 1, irqs_disabled(): 0, pid: 1, name:
> swapper/0
> [    1.936601] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 4.13.0-rc2-
> 00110-g0b5477d9dabd #111
> [    1.936828] Backtrace:
> [    1.936889]  [<0000000040217ac8>] show_stack+0x20/0x38
> [    1.939036]  [<00000000406fbbb0>] dump_stack+0xb0/0x128
> [    1.939174]  [<0000000040274090>] ___might_sleep+0x180/0x1b8
> [    1.940000]  [<0000000040274144>] __might_sleep+0x7c/0xe8
> [    1.940000]  [<0000000040373874>] kmem_cache_alloc+0x14c/0x1e0
> [    1.940000]  [<0000000040419514>] __kernfs_new_node+0x84/0x1b8
> [    1.940000]  [<000000004041b09c>] kernfs_new_node+0x3c/0x78
> [    1.940000]  [<000000004041e040>] kernfs_create_link+0x40/0xd8
> [    1.940000]  [<000000004041f320>]
> sysfs_do_create_link_sd.isra.0+0xb0/0x130
> [    1.940000]  [<000000004041f3d4>] sysfs_create_link+0x34/0x58
> [    1.940000]  [<000000004011b4a4>] pdc_stable_init+0x2c4/0x458
> 
> I don't know how we got to sysfs_create_link.  It is probably from
> here:
> 
>         /* Don't forget the root entries */
>         error = sysfs_create_group(stable_kobj, &pdcs_attr_group);
> 
> Presumably, this is the sleeping function but it's not clear how the
> incorrect context arises.
> 
> Maybe there is an errant spin_lock somewhere.  For example, see:
> https://lkml.org/lkml/2012/3/29/101
> It might be in a unrelated routine.
> 
> Since this code hasn't changed in a long time, it should be possible
> to bisect problem.

How about this?  There's no need to take the write lock when creating
links anyway.

James

---

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 7147aa53e9a2..d7c88b1eaf06 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -331,13 +331,13 @@ pdcspath_hwpath_write(struct pdcspath_entry *entry, const char *buf, size_t coun
 	/* Now, dive in. Write back to the hardware */
 	pdcspath_store(entry);
 	
+	write_unlock(&entry->rw_lock);
+
 	/* Update the symlink to the real device */
 	sysfs_remove_link(&entry->kobj, "device");
 	ret = sysfs_create_link(&entry->kobj, &entry->dev->kobj, "device");
 	WARN_ON(ret);
 
-	write_unlock(&entry->rw_lock);
-	
 	printk(KERN_INFO PDCS_PREFIX ": changed \"%s\" path to \"%s\"\n",
 		entry->name, buf);
 	
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Subject: Re: parisc 4.13-git, BUG: sleeping function called from invalid
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> How about this?  There's no need to take the write lock when creating
> links anyway.

No effect.

> 
> James
> 
> ---
> 
> diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
> index 7147aa53e9a2..d7c88b1eaf06 100644
> --- a/drivers/parisc/pdc_stable.c
> +++ b/drivers/parisc/pdc_stable.c
> @@ -331,13 +331,13 @@ pdcspath_hwpath_write(struct pdcspath_entry *entry, const char *buf, size_t coun
>  	/* Now, dive in. Write back to the hardware */
>  	pdcspath_store(entry);
>  	
> +	write_unlock(&entry->rw_lock);
> +
>  	/* Update the symlink to the real device */
>  	sysfs_remove_link(&entry->kobj, "device");
>  	ret = sysfs_create_link(&entry->kobj, &entry->dev->kobj, "device");
>  	WARN_ON(ret);
>  
> -	write_unlock(&entry->rw_lock);
> -	
>  	printk(KERN_INFO PDCS_PREFIX ": changed \"%s\" path to \"%s\"\n",
>  		entry->name, buf);
>  	
> 

-- 
Meelis Roos (mroos@linux.ee)
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On 2017-07-30, at 2:12 PM, Meelis Roos wrote:

>> How about this?  There's no need to take the write lock when creating
>> links anyway.
> 
> No effect.

Is the backtrace still the same?

--
John David Anglin	dave.anglin@bell.net



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On Sun, 2017-07-30 at 14:21 -0400, John David Anglin wrote:
> On 2017-07-30, at 2:12 PM, Meelis Roos wrote:
> 
> > 
> > > 
> > > How about this?  There's no need to take the write lock when
> > > creating
> > > links anyway.
> > 
> > No effect.
> 
> Is the backtrace still the same?

There's another write lock over a symlink in
pdcs_register_pathentries() does moving it up as well finally make this
go away (cumulative patch below).  If that doesn't work, enabling
DEBUG_PREEMPT might show which lock is the problem.

James

---

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 7147aa53e9a2..3e0c90420a1b 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -331,13 +331,13 @@ pdcspath_hwpath_write(struct pdcspath_entry *entry, const char *buf, size_t coun
 	/* Now, dive in. Write back to the hardware */
 	pdcspath_store(entry);
 	
+	write_unlock(&entry->rw_lock);
+
 	/* Update the symlink to the real device */
 	sysfs_remove_link(&entry->kobj, "device");
 	ret = sysfs_create_link(&entry->kobj, &entry->dev->kobj, "device");
 	WARN_ON(ret);
 
-	write_unlock(&entry->rw_lock);
-	
 	printk(KERN_INFO PDCS_PREFIX ": changed \"%s\" path to \"%s\"\n",
 		entry->name, buf);
 	
@@ -998,6 +998,7 @@ pdcs_register_pathentries(void)
 		/* kobject is now registered */
 		write_lock(&entry->rw_lock);
 		entry->ready = 2;
+		write_unlock(&entry->rw_lock);
 		
 		/* Add a nice symlink to the real device */
 		if (entry->dev) {
@@ -1005,7 +1006,6 @@ pdcs_register_pathentries(void)
 			WARN_ON(err);
 		}
 
-		write_unlock(&entry->rw_lock);
 		kobject_uevent(&entry->kobj, KOBJ_ADD);
 	}
 	


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc 4.13-git, BUG: sleeping function called from invalid
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On 30.07.2017 20:37, James Bottomley wrote:
> On Sun, 2017-07-30 at 14:21 -0400, John David Anglin wrote:
>> On 2017-07-30, at 2:12 PM, Meelis Roos wrote:
>>
>>>
>>>>
>>>> How about this?  There's no need to take the write lock when
>>>> creating
>>>> links anyway.
>>>
>>> No effect.
>>
>> Is the backtrace still the same?
> 
> There's another write lock over a symlink in
> pdcs_register_pathentries() does moving it up as well finally make this
> go away (cumulative patch below).  If that doesn't work, enabling
> DEBUG_PREEMPT might show which lock is the problem.


That patch works.

Helge

> diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
> index 7147aa53e9a2..3e0c90420a1b 100644
> --- a/drivers/parisc/pdc_stable.c
> +++ b/drivers/parisc/pdc_stable.c
> @@ -331,13 +331,13 @@ pdcspath_hwpath_write(struct pdcspath_entry *entry, const char *buf, size_t coun
>  	/* Now, dive in. Write back to the hardware */
>  	pdcspath_store(entry);
>  	
> +	write_unlock(&entry->rw_lock);
> +
>  	/* Update the symlink to the real device */
>  	sysfs_remove_link(&entry->kobj, "device");
>  	ret = sysfs_create_link(&entry->kobj, &entry->dev->kobj, "device");
>  	WARN_ON(ret);
>  
> -	write_unlock(&entry->rw_lock);
> -	
>  	printk(KERN_INFO PDCS_PREFIX ": changed \"%s\" path to \"%s\"\n",
>  		entry->name, buf);
>  	
> @@ -998,6 +998,7 @@ pdcs_register_pathentries(void)
>  		/* kobject is now registered */
>  		write_lock(&entry->rw_lock);
>  		entry->ready = 2;
> +		write_unlock(&entry->rw_lock);
>  		
>  		/* Add a nice symlink to the real device */
>  		if (entry->dev) {
> @@ -1005,7 +1006,6 @@ pdcs_register_pathentries(void)
>  			WARN_ON(err);
>  		}
>  
> -		write_unlock(&entry->rw_lock);
>  		kobject_uevent(&entry->kobj, KOBJ_ADD);
>  	}
>  	
> 
> 
> --
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> 

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From - Thu Nov 08 21:40:05 2018
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc 4.13-git, BUG: sleeping function called from invalid
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> > > 
> > > > 
> > > > How about this?  There's no need to take the write lock when
> > > > creating
> > > > links anyway.
> > > 
> > > No effect.
> > 
> > Is the backtrace still the same?
> 
> There's another write lock over a symlink in
> pdcs_register_pathentries() does moving it up as well finally make this
> go away (cumulative patch below).  If that doesn't work, enabling
> DEBUG_PREEMPT might show which lock is the problem.

This patch works for me too.

-- 
Meelis Roos (mroos@linux.ee)
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From - Thu Nov 08 21:40:05 2018
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Subject: Re: parisc 4.13-git, BUG: sleeping function called from invalid context at mm/slab.h:416
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On 2017-07-30, at 2:53 PM, Helge Deller wrote:

> On 30.07.2017 20:37, James Bottomley wrote:
>> On Sun, 2017-07-30 at 14:21 -0400, John David Anglin wrote:
>>> On 2017-07-30, at 2:12 PM, Meelis Roos wrote:
>>> 
>>>> 
>>>>> 
>>>>> How about this?  There's no need to take the write lock when
>>>>> creating
>>>>> links anyway.
>>>> 
>>>> No effect.
>>> 
>>> Is the backtrace still the same?
>> 
>> There's another write lock over a symlink in
>> pdcs_register_pathentries() does moving it up as well finally make this
>> go away (cumulative patch below).  If that doesn't work, enabling
>> DEBUG_PREEMPT might show which lock is the problem.
> 
> 
> That patch works.

Same here.

I noticed that when CONFIG_PDC_STABLE=m, it appears the PDC stable links are not setup.
The "PDC Stable Storage facility v0.30" message doesn't appear in the console output.

> 
> Helge
> 
>> diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
>> index 7147aa53e9a2..3e0c90420a1b 100644
>> --- a/drivers/parisc/pdc_stable.c
>> +++ b/drivers/parisc/pdc_stable.c
>> @@ -331,13 +331,13 @@ pdcspath_hwpath_write(struct pdcspath_entry *entry, const char *buf, size_t coun
>> 	/* Now, dive in. Write back to the hardware */
>> 	pdcspath_store(entry);
>> 	
>> +	write_unlock(&entry->rw_lock);
>> +
>> 	/* Update the symlink to the real device */
>> 	sysfs_remove_link(&entry->kobj, "device");
>> 	ret = sysfs_create_link(&entry->kobj, &entry->dev->kobj, "device");
>> 	WARN_ON(ret);
>> 
>> -	write_unlock(&entry->rw_lock);
>> -	
>> 	printk(KERN_INFO PDCS_PREFIX ": changed \"%s\" path to \"%s\"\n",
>> 		entry->name, buf);
>> 	
>> @@ -998,6 +998,7 @@ pdcs_register_pathentries(void)
>> 		/* kobject is now registered */
>> 		write_lock(&entry->rw_lock);
>> 		entry->ready = 2;
>> +		write_unlock(&entry->rw_lock);
>> 		
>> 		/* Add a nice symlink to the real device */
>> 		if (entry->dev) {
>> @@ -1005,7 +1006,6 @@ pdcs_register_pathentries(void)
>> 			WARN_ON(err);
>> 		}
>> 
>> -		write_unlock(&entry->rw_lock);
>> 		kobject_uevent(&entry->kobj, KOBJ_ADD);
>> 	}


Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:40:05 2018
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X-Mozilla-Keys:                                                                                 
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Handle vma's whose context is not current in flush_cache_range
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Cc: Helge Deller <deller@gmx.de>,
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In testing James' patch to drivers/parisc/pdc_stable.c, I hit the BUG =
statement in flush_cache_range()
during a system shutdown:

kernel BUG at arch/parisc/kernel/cache.c:595!
CPU: 2 PID: 6532 Comm: kworker/2:0 Not tainted 4.13.0-rc2+ #1
Workqueue: events free_ioctx
task: 000000007b32abb0 task.stack: 0000000062180000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111011100001111 Not tainted
r00-03  000000ff0804f70f 000000004072bdc0 000000004016302c =
0000000062180aa0
r04-07  00000000407165c0 000000007b41f590 00000000f37bd000 =
00000000f37c0000
r08-11  000000007b41f590 00000000621806b8 0000000000000001 =
0000000000000064
r12-15  00000000407435c0 00000000407445c0 00000000f37bd000 =
0000000000000000
r16-19  fffffff0f0d00b0c 00000000621806b8 000000007b41f590 =
0000000062180000
r20-23  0000000000000f97 000000000800000f 00000000621806b8 =
00000000f37c0000
r24-27  00000000f37c0000 000000000800000f 0000000040888100 =
00000000407165c0
r28-31  000000000b9ba800 0000000062180ce0 0000000062180b40 =
00000000004ca800
sr00-03  000000000b9ba800 00000000004ca800 0000000000000000 =
000000000b9ba800
sr04-07  0000000000000000 0000000000000000 0000000000000000 =
0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000040163084 =
0000000040163088
 IIR: 03ffe01f    ISR: 0000000010240000  IOR: 0000008860180018
 CPU:        2   CR30: 0000000062180000 CR31: ffffffffffffffff
 ORIG_R28: 0000000062180d30
 IAOQ[0]: flush_cache_range+0x144/0x148
 IAOQ[1]: flush_cache_page+0x0/0x1a8
 RP(r2): flush_cache_range+0xec/0x148
Backtrace:
 [<00000000402910ac>] unmap_page_range+0x84/0x880
 [<00000000402918f4>] unmap_single_vma+0x4c/0x60
 [<0000000040291a18>] zap_page_range_single+0x110/0x160
 [<0000000040291c34>] unmap_mapping_range+0x174/0x1a8
 [<000000004026ccd8>] truncate_pagecache+0x50/0xa8
 [<000000004026cd84>] truncate_setsize+0x54/0x70
 [<000000004033d534>] put_aio_ring_file+0x44/0xb0
 [<000000004033d5d8>] aio_free_ring+0x38/0x140
 [<000000004033d714>] free_ioctx+0x34/0xa8
 [<00000000401b0028>] process_one_work+0x1b8/0x4d0
 [<00000000401b04f4>] worker_thread+0x1b4/0x648
 [<00000000401b9128>] kthread+0x1b0/0x208
 [<0000000040150020>] end_fault_vector+0x20/0x28
 [<0000000040639518>] nf_ip_reroute+0x50/0xa8
 [<0000000040638ed0>] nf_ip_route+0x10/0x78
 [<0000000040638c90>] xfrm4_mode_tunnel_input+0x180/0x1f8

CPU: 2 PID: 6532 Comm: kworker/2:0 Not tainted 4.13.0-rc2+ #1
Workqueue: events free_ioctx
Backtrace:
 [<0000000040163bf0>] show_stack+0x20/0x38
 [<0000000040688480>] dump_stack+0xa8/0x120
 [<0000000040163dc4>] die_if_kernel+0x19c/0x2b0
 [<0000000040164d0c>] handle_interruption+0xa24/0xa48

This patch modifies flush_cache_range() to handle non current contexts.  =
In as much as this occurs
infrequently, the simplest approach is to flush the entire cache when =
this happens.

Signed-off-by: John David Anglin <dave.anglin@bell.net>


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diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 85a92db70afc..19c0c141bc3f 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -587,13 +587,12 @@ void flush_cache_range(struct vm_area_struct *vma,
 	if (parisc_requires_coherency())
 		flush_tlb_range(vma, start, end);
 
-	if ((end - start) >= parisc_cache_flush_threshold) {
+	if ((end - start) >= parisc_cache_flush_threshold
+	    || vma->vm_mm->context != mfsp(3)) {
 		flush_cache_all();
 		return;
 	}
 
-	BUG_ON(vma->vm_mm->context != mfsp(3));

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Increase thread and stack size to 32kb
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Since kernel 4.11 the thread and irq stacks on parisc randomly overflow
the default size of 16k. The reason why stack usage suddenly grew is yet
unknown.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.11+

diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 88fe0aad4390..761234d8d84e 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -34,7 +34,7 @@ struct thread_info {
 
 /* thread information allocation */
 
-#define THREAD_SIZE_ORDER	2 /* PA-RISC requires at least 16k stack */
+#define THREAD_SIZE_ORDER	3 /* PA-RISC requires at least 32k stack */
 /* Be sure to hunt all references to this down when you change the size of
  * the kernel stack */
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_SIZE_ORDER)
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index ba5e1c7b1f17..0ca254085a66 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -380,7 +380,7 @@ static inline int eirr_to_irq(unsigned long eirr)
 /*
  * IRQ STACK - used for irq handler
  */
-#define IRQ_STACK_SIZE      (4096 << 2) /* 16k irq stack size */
+#define IRQ_STACK_SIZE      (4096 << 3) /* 32k irq stack size */
 
 union irq_stack_union {
 	unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
--
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From - Thu Nov 08 21:40:05 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Implement PDT for PAT machines which return cell info
Date: Mon, 31 Jul 2017 15:27:18 +0200
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Machines like rp5470 return their Page Deallocation Table (PDT) info per
cell via the PDC_PAT_MEM_PD_INFO PDC call.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pdcpat.h b/arch/parisc/include/asm/pdcpat.h
index e3c0586..a468a17 100644
--- a/arch/parisc/include/asm/pdcpat.h
+++ b/arch/parisc/include/asm/pdcpat.h
@@ -223,6 +223,18 @@ struct pdc_pat_mem_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_PD_INFO (return info) */
 	unsigned long clear_time; /* last PDT clear time (since Jan 1970) */
 };
 
+struct pdc_pat_mem_cell_pdt_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_CELL_INFO */
+	u64 reserved:32;
+	u64 cs:1;		/* clear status: cleared since the last call? */
+	u64 current_pdt_entries:15;
+	u64 ic:1;		/* interleaving had to be changed ? */
+	u64 max_pdt_entries:15;
+	unsigned long good_mem;
+	unsigned long first_dbe_loc; /* first location of double bit error */
+	unsigned long clear_time; /* last PDT clear time (since Jan 1970) */
+};
+
+
 struct pdc_pat_mem_read_pd_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_PD_READ */
 	unsigned long actual_count_bytes;
 	unsigned long pdt_entries;
@@ -325,6 +337,8 @@ extern int pdc_pat_io_pci_cfg_read(unsigned long pci_addr, int pci_size, u32 *va
 extern int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val); 
 
 extern int pdc_pat_mem_pdt_info(struct pdc_pat_mem_retinfo *rinfo);
+extern int pdc_pat_mem_pdt_cell_info(struct pdc_pat_mem_cell_pdt_retinfo *rinfo,
+		unsigned long cell);
 extern int pdc_pat_mem_read_cell_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
 		unsigned long *pdt_entries_ptr, unsigned long max_entries);
 extern int pdc_pat_mem_read_pd_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index f622a31..a28e42b 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1440,6 +1440,29 @@ int pdc_pat_mem_pdt_info(struct pdc_pat_mem_retinfo *rinfo)
 }
 
 /**
+ * pdc_pat_mem_pdt_cell_info - Retrieve information about page deallocation
+ * 		table of a cell
+ * @rinfo: memory pdt information
+ * @cell: cell number
+ *
+ */
+int pdc_pat_mem_pdt_cell_info(struct pdc_pat_mem_cell_pdt_retinfo *rinfo,
+		unsigned long cell)
+{
+	int retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_CELL_INFO,
+			__pa(&pdc_result), cell);
+	if (retval == PDC_OK)
+		memcpy(rinfo, &pdc_result, sizeof(*rinfo));
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
+
+/**
  * pdc_pat_mem_read_cell_pdt - Read PDT entries from (old) PAT firmware
  * @pret: array of PDT entries
  * @pdt_entries_ptr: ptr to hold number of PDT entries
diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
index d02874e..95e7497 100644
--- a/arch/parisc/kernel/pdt.c
+++ b/arch/parisc/kernel/pdt.c
@@ -59,7 +59,7 @@ void arch_report_meminfo(struct seq_file *m)
  */
 void __init pdc_pdt_init(void)
 {
-	int ret, i;
+	int ret = PDC_BAD_PROC, i;
 	unsigned long entries;
 	struct pdc_mem_read_pdt pdt_read_ret;
 
@@ -67,14 +67,31 @@ void __init pdc_pdt_init(void)
 		struct pdc_pat_mem_retinfo pat_rinfo;
 
 		pdt_type = PDT_PAT_NEW;
+		/* newer machines like C8000 report info for all cells */
 		ret = pdc_pat_mem_pdt_info(&pat_rinfo);
 		pdt_status.pdt_size = pat_rinfo.max_pdt_entries;
 		pdt_status.pdt_entries = pat_rinfo.current_pdt_entries;
 		pdt_status.pdt_status = 0;
 		pdt_status.first_dbe_loc = pat_rinfo.first_dbe_loc;
 		pdt_status.good_mem = pat_rinfo.good_mem;
-	} else {
+	}
+
+	if (is_pdc_pat() && ret != PDC_OK) {
+		struct pdc_pat_mem_cell_pdt_retinfo cell_rinfo;
+
+		pdt_type = PDT_PAT_OLD;
+		/* older machines like rp5470 report cell info only */
+		ret = pdc_pat_mem_pdt_cell_info(&cell_rinfo, parisc_cell_num);
+		pdt_status.pdt_size = cell_rinfo.max_pdt_entries;
+		pdt_status.pdt_entries = cell_rinfo.current_pdt_entries;
+		pdt_status.pdt_status = 0;
+		pdt_status.first_dbe_loc = cell_rinfo.first_dbe_loc;
+		pdt_status.good_mem = cell_rinfo.good_mem;
+	}
+
+	if (ret != PDC_OK) {
 		pdt_type = PDT_PDC;
+		/* non-PAT machines provide the standard PDC call */
 		ret = pdc_mem_pdt_info(&pdt_status);
 	}
 
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: pdc_stable: Fix locking when creating sysfs links
Date: Mon, 31 Jul 2017 15:49:54 +0200
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From: James Bottomley <James.Bottomley@HansenPartnership.com>

There's no need to take the write lock when creating sysfs links.

This patch fixes the following BUG: 
 BUG: sleeping function called from invalid context at mm/slab.h:416
 in_atomic(): 1, irqs_disabled(): 0, pid: 1, name: swapper/0
 CPU: 2 PID: 1 Comm: swapper/0 Not tainted 4.13.0-rc2-00110-g0b5477d9dabd #111
 Backtrace:
 [<0000000040217ac8>] show_stack+0x20/0x38
 [<00000000406fbbb0>] dump_stack+0xb0/0x128
 [<0000000040274090>] ___might_sleep+0x180/0x1b8
 [<0000000040274144>] __might_sleep+0x7c/0xe8
 [<0000000040373874>] kmem_cache_alloc+0x14c/0x1e0
 [<0000000040419514>] __kernfs_new_node+0x84/0x1b8
 [<000000004041b09c>] kernfs_new_node+0x3c/0x78
 [<000000004041e040>] kernfs_create_link+0x40/0xd8
 [<000000004041f320>] sysfs_do_create_link_sd.isra.0+0xb0/0x130
 [<000000004041f3d4>] sysfs_create_link+0x34/0x58
 [<000000004011b4a4>] pdc_stable_init+0x2c4/0x458
 [<0000000040200250>] do_one_initcall+0x70/0x1d8
 [<0000000040101644>] kernel_init_freeable+0x27c/0x390
 [<000000004020be44>] kernel_init+0x24/0x1c0

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Reported-by: Meelis Roos <mroos@linux.ee>

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 7147aa5..b1ff46f 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -333,11 +333,11 @@ pdcspath_hwpath_write(struct pdcspath_entry *entry, const char *buf, size_t coun
 	
 	/* Update the symlink to the real device */
 	sysfs_remove_link(&entry->kobj, "device");
+	write_unlock(&entry->rw_lock);
+
 	ret = sysfs_create_link(&entry->kobj, &entry->dev->kobj, "device");
 	WARN_ON(ret);
 
-	write_unlock(&entry->rw_lock);
-	
 	printk(KERN_INFO PDCS_PREFIX ": changed \"%s\" path to \"%s\"\n",
 		entry->name, buf);
 	
@@ -998,6 +998,7 @@ pdcs_register_pathentries(void)
 		/* kobject is now registered */
 		write_lock(&entry->rw_lock);
 		entry->ready = 2;
+		write_unlock(&entry->rw_lock);
 		
 		/* Add a nice symlink to the real device */
 		if (entry->dev) {
@@ -1005,7 +1006,6 @@ pdcs_register_pathentries(void)
 			WARN_ON(err);
 		}
 
-		write_unlock(&entry->rw_lock);
 		kobject_uevent(&entry->kobj, KOBJ_ADD);
 	}
 	
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From - Thu Nov 08 21:40:05 2018
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc 4.13-git, BUG: sleeping function called from invalid
 context at mm/slab.h:416
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> Since this code hasn't changed in a long time, it should be possible to bisect problem.

I know the patch works, but out of curiosity I bisected it and found 
that the BUG is brough out with the following commit. Seems to make 
sense.

ma1c3c5eab171590f86edd8d31389d61dd1efe3037 is the first bad commit
commit 1c3c5eab171590f86edd8d31389d61dd1efe3037
Author: Thomas Gleixner <tglx@linutronix.de>
Date:   Tue May 16 20:42:48 2017 +0200

    sched/core: Enable might_sleep() and smp_processor_id() checks early
    
    might_sleep() and smp_processor_id() checks are enabled after the boot
    process is done. That hides bugs in the SMP bringup and driver
    initialization code.
    
    Enable it right when the scheduler starts working, i.e. when init task and
    kthreadd have been created and right before the idle task enables
    preemption.
    
    Tested-by: Mark Rutland <mark.rutland@arm.com>
    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
    Acked-by: Mark Rutland <mark.rutland@arm.com>
    Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Steven Rostedt <rostedt@goodmis.org>
    Link: http://lkml.kernel.org/r/20170516184736.272225698@linutronix.de
    Signed-off-by: Ingo Molnar <mingo@kernel.org>



-- 
Meelis Roos (mroos@linux.ee)
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On Tue, 2017-08-01 at 10:52 +0300, Meelis Roos wrote:
> > 
> > Since this code hasn't changed in a long time, it should be
> > possible to bisect problem.
> 
> I know the patch works, but out of curiosity I bisected it and found 
> that the BUG is brough out with the following commit. Seems to make 
> sense.

Yes, I guessed it would be something like that.  The bug was actually
always in our code; that commit just causes us to notice it.  Bisect
naturally takes you to that commit rather than the original problem one
(which is way back in history now).

James

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Hi Linus,

please pull four small important fixes for the parisc architecture for 4.13-rc4 from

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.13-4

Changes:
- Our cache flushing code runs into a BUG in case context is not current. Fix
  it by flushing the whole cache in such rare situations (by Dave Anglin).

- Fix a "sleeping function called from invalid context BUG" in our pdc_stable
  driver by rearranging our locks (by James Bottomley)

- The thread and irq stacks require more than 16 KB since kernel 4.11. Increase
  both to 32 KB.

- Define CONFIG_CPU_BIG_ENDIAN unconditionally on parisc to avoid wrong behaviour
  in qrwlock functions (by Babu Moger).

Thanks,
Helge

----------------------------------------------------------------
Babu Moger (1):
      parisc: Define CONFIG_CPU_BIG_ENDIAN

Helge Deller (1):
      parisc: Increase thread and stack size to 32kb

James Bottomley (1):
      parisc: pdc_stable: Fix locking when creating sysfs links

John David Anglin (1):
      parisc: Handle vma's whose context is not current in flush_cache_range

 arch/parisc/Kconfig                   | 3 +++
 arch/parisc/include/asm/thread_info.h | 2 +-
 arch/parisc/kernel/cache.c            | 5 ++---
 arch/parisc/kernel/irq.c              | 2 +-
 drivers/parisc/pdc_stable.c           | 6 +++---
 5 files changed, 10 insertions(+), 8 deletions(-)


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From: Tom Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: PCI resource problem on C360
Date: Thu, 3 Aug 2017 16:07:17 +0200
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Hi,

while trying to make progress with supporting VGA cards, I stumbled
over following problem on a C360:

pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
pci_bus 0000:00: root bus resource [mem 0xfffffffff2800000-0xfffffffff3ffffff]
pci_bus 0000:00: root bus resource [bus 00-ff]
pci_bus 0000:00: scanning bus
pci 0000:00:03.0: [1002:5654] type 00 class 0x030000
pci 0000:00:03.0: reg 0x10: [mem 0xf3000000-0xf3ffffff]
pci 0000:00:03.0: reg 0x14: [io  0xfd00-0xfdff]
pci 0000:00:03.0: reg 0x30: [mem 0xf2f80000-0xf2f8ffff pref]
pci 0000:00:03.0: calling quirk_no_pm_reset+0x0/0x30
pci 0000:00:13.0: [1000:000f] type 00 class 0x010000
pci 0000:00:13.0: reg 0x10: [io  0xfe00-0xfeff]
pci 0000:00:13.0: reg 0x14: [mem 0xf2ffd000-0xf2ffd0ff]
pci 0000:00:13.0: reg 0x18: [mem 0xf2ffe000-0xf2ffefff]
pci 0000:00:14.0: [1011:0019] type 00 class 0x020000
pci 0000:00:14.0: reg 0x10: [io  0xff00-0xff7f]
pci 0000:00:14.0: reg 0x14: [mem 0xf2fff000-0xf2fff07f]
pci 0000:00:14.0: reg 0x30: [mem 0xf2f80000-0xf2fbffff pref]
pci_bus 0000:00: fixups for bus
pci_bus 0000:00: bus scan returning with max=00
pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
pci 0000:00:03.0: BAR 0: no space for [mem size 0x01000000]
pci 0000:00:03.0: BAR 0: failed to assign [mem size 0x01000000]
pci 0000:00:13.0: BAR 2: no space for [mem size 0x00001000]
pci 0000:00:13.0: BAR 2: failed to assign [mem size 0x00001000]
pci 0000:00:03.0: BAR 1: assigned [io  0x0100-0x01ff]
pci 0000:00:13.0: BAR 0: assigned [io  0x0200-0x02ff]
pci 0000:00:13.0: BAR 1: no space for [mem size 0x00000100]
pci 0000:00:13.0: BAR 1: failed to assign [mem size 0x00000100]
pci 0000:00:14.0: BAR 0: assigned [io  0x0080-0x00ff]
pci 0000:00:14.0: BAR 1: no space for [mem size 0x00000080]
pci 0000:00:14.0: BAR 1: failed to assign [mem size 0x0000008

Is this a known problem ? Source tree is current parisc git.

Thomas.

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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: PCI resource problem on C360
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On 2017-08-03, at 10:07 AM, Tom Bogendoerfer wrote:

> Is this a known problem ? Source tree is current parisc git.

I don't think so.  Doesn't happen on rp3440:

[    1.820224] LBA 0:0: PCI host bridge to bus 0000:00
[    1.820365] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    1.820528] pci_bus 0000:00: root bus resource [mem 0xffffffff80000000-0xffff
ffff8fffffff] (bus address [0x80000000-0x8fffffff])[    1.821090] pci_bus 0000:00: root bus resource [bus 00-07]
[    1.828085] pci 0000:00:01.0: [1033:0035] type 00 class 0x0c0310[    1.828130] pci 0000:00:01.0: reg 0x10: [mem 0xffffffff80002000-0xffffffff800
02fff]
[    1.828267] pci 0000:00:01.0: supports D1 D2
[    1.828273] pci 0000:00:01.0: PME# supported from D0 D1 D2 D3hot
[    1.830081] pci 0000:00:01.1: [1033:0035] type 00 class 0x0c0310[    1.830120] pci 0000:00:01.1: reg 0x10: [mem 0xffffffff80001000-0xffffffff800
01fff][    1.830247] pci 0000:00:01.1: supports D1 D2
[    1.830253] pci 0000:00:01.1: PME# supported from D0 D1 D2 D3hot
[    1.830371] pci 0000:00:01.2: [1033:00e0] type 00 class 0x0c0320
[    1.830409] pci 0000:00:01.2: reg 0x10: [mem 0xffffffff80000000-0xffffffff800000ff]
[    1.830534] pci 0000:00:01.2: supports D1 D2
[    1.830540] pci 0000:00:01.2: PME# supported from D0 D1 D2 D3hot
[    1.830666] pci 0000:00:02.0: [1095:0649] type 00 class 0x01018f
[    1.830703] pci 0000:00:02.0: reg 0x10: [io  0x0d18-0x0d1f]
[    1.830723] pci 0000:00:02.0: reg 0x14: [io  0x0d24-0x0d27]
[    1.830743] pci 0000:00:02.0: reg 0x18: [io  0x0d10-0x0d17]
[    1.830762] pci 0000:00:02.0: reg 0x1c: [io  0x0d20-0x0d23]
[    1.830782] pci 0000:00:02.0: reg 0x20: [io  0x0d00-0x0d0f]
[    1.830855] pci 0000:00:02.0: supports D1 D2
[    1.850047] Mercury version TR3.2 (0x32) found at 0xfffffffffed22000
[    1.910206] LBA 0:1: PCI host bridge to bus 0000:20
[    1.910349] pci_bus 0000:20: root bus resource [io  0x10000-0x1ffff] (bus address [0x0000-0xffff])
[    1.910808] pci_bus 0000:20: root bus resource [mem 0xffffffff90000000-0xffffffff9fffffff] (bus address [0x90000000-0x9fffffff])
[    1.918145] pci_bus 0000:20: root bus resource [bus 20-27]
[    1.918320] pci 0000:20:01.0: [1000:0021] type 00 class 0x010000
[    1.918356] pci 0000:20:01.0: reg 0x10: [io  0x12100-0x121ff]
[    1.918378] pci 0000:20:01.0: reg 0x14: [mem 0xffffffff90015000-0xffffffff900153ff 64bit]
[    1.918400] pci 0000:20:01.0: reg 0x1c: [mem 0xffffffff90012000-0xffffffff90013fff 64bit]
[    1.918464] pci 0000:20:01.0: supports D1 D2
[    1.918595] pci 0000:20:01.1: [1000:0021] type 00 class 0x010000
[    1.918623] pci 0000:20:01.1: reg 0x10: [io  0x12000-0x120ff]
[    1.918645] pci 0000:20:01.1: reg 0x14: [mem 0xffffffff90014000-0xffffffff900143ff 64bit]
[    1.918667] pci 0000:20:01.1: reg 0x1c: [mem 0xffffffff90010000-0xffffffff90011fff 64bit]
[    1.918721] pci 0000:20:01.1: supports D1 D2
[    1.918839] pci 0000:20:02.0: [14e4:1645] type 00 class 0x020000
[    1.918876] pci 0000:20:02.0: reg 0x10: [mem 0xffffffff90000000-0xffffffff9000ffff 64bit]
[    1.918981] pci 0000:20:02.0: PME# supported from D3hot D3cold
[    1.940046] Mercury version TR3.2 (0x32) found at 0xfffffffffed24000
[    1.998842] LBA 0:2: PCI host bridge to bus 0000:40
[    1.998985] pci_bus 0000:40: root bus resource [io  0x20000-0x2ffff] (bus address [0x0000-0xffff])
[    1.999459] pci_bus 0000:40: root bus resource [mem 0xffffffffa0000000-0xffffffffafffffff] (bus address [0xa0000000-0xafffffff])
[    2.000039] pci_bus 0000:40: root bus resource [bus 40-47]
[    2.028845] Mercury version TR3.2 (0x32) found at 0xfffffffffed26000
[    2.080237] LBA 0:3: PCI host bridge to bus 0000:60
[    2.080561] pci_bus 0000:60: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0xffff])
[    2.081116] pci_bus 0000:60: root bus resource [mem 0xffffffffb0000000-0xffffffffbfffffff] (bus address [0xb0000000-0xbfffffff])
[    2.090055] pci_bus 0000:60: root bus resource [bus 60-67]
[    2.116809] Mercury version TR3.2 (0x32) found at 0xfffffffffed28000
[    2.150026] LBA: lmmio_space [0xffffffffc0000000-0xffffffffdfffffff] - new
[    2.170228] LBA 0:4: PCI host bridge to bus 0000:80
[    2.170371] pci_bus 0000:80: root bus resource [io  0x40000-0x4ffff] (bus address [0x0000-0xffff])
[    2.170826] pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffdfffffff] (bus address [0xc0000000-0xdfffffff])
[    2.180021] pci_bus 0000:80: root bus resource [bus 80-87]
[    2.200044] Mercury version TR3.2 (0x32) found at 0xfffffffffed2c000
[    2.260215] LBA 0:6: PCI host bridge to bus 0000:c0
[    2.260357] pci_bus 0000:c0: root bus resource [io  0x50000-0x5ffff] (bus address [0x0000-0xffff])
[    2.260806] pci_bus 0000:c0: root bus resource [mem 0xffffffffe0000000-0xffffffffefffffff] (bus address [0xe0000000-0xefffffff])
[    2.270021] pci_bus 0000:c0: root bus resource [bus c0-c7]
[    2.290047] Mercury version TR3.2 (0x32) found at 0xfffffffffed2e000
[    2.320027] LBA: lmmio_space [0xfffffffff0000000-0xfffffffffe77ffff] - new
[    2.350182] LBA 0:7: PCI host bridge to bus 0000:e0
[    2.350325] pci_bus 0000:e0: root bus resource [io  0x60000-0x6ffff] (bus address [0x0000-0xffff])
[    2.350789] pci_bus 0000:e0: root bus resource [mem 0xfffffffff0000000-0xfffffffffe77ffff] (bus address [0xf0000000-0xfe77ffff])
[    2.358052] pci_bus 0000:e0: root bus resource [bus e0-e7]
[    2.358246] pci 0000:e0:01.0: [103c:1290] type 00 class 0x078000
[    2.358329] pci 0000:e0:01.0: reg 0x18: [mem 0xfffffffff4051000-0xfffffffff405100f]
[    2.358589] pci 0000:e0:01.1: [103c:1048] type 00 class 0x070002
[    2.358634] pci 0000:e0:01.1: reg 0x10: [mem 0xfffffffff4050000-0xfffffffff4050fff]
[    2.358674] pci 0000:e0:01.1: reg 0x18: [mem 0xfffffffff4020000-0xfffffffff403ffff pref]
[    2.358921] pci 0000:e0:02.0: [1002:5159] type 00 class 0x030000
[    2.358965] pci 0000:e0:02.0: reg 0x10: [mem 0xfffffffff0000000-0xfffffffff3ffffff pref]
[    2.358987] pci 0000:e0:02.0: reg 0x14: [io  0x6e000-0x6e0ff]
[    2.359010] pci 0000:e0:02.0: reg 0x18: [mem 0xfffffffff4040000-0xfffffffff404ffff]
[    2.359080] pci 0000:e0:02.0: reg 0x30: [mem 0xfffffffff4000000-0xfffffffff401ffff pref]
[    2.359134] pci 0000:e0:02.0: supports D1 D2
[    2.360013] powersw: Soft power switch support not available.
[    2.370516] WARNING: workqueue cpumask: online intersect > possible intersect
[    2.391187] pci 0000:e0:02.0: vgaarb: setting as boot VGA device
[    2.391359] pci 0000:e0:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
[    2.391805] pci 0000:e0:02.0: vgaarb: bridge control possible
[    2.391954] vgaarb: loaded

Dave
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John David Anglin	dave.anglin@bell.net



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From: Helge Deller <deller@gmx.de>
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On 03.08.2017 17:58, John David Anglin wrote:
> On 2017-08-03, at 10:07 AM, Tom Bogendoerfer wrote:
> 
>> Is this a known problem ? Source tree is current parisc git.
> 
> I don't think so.  Doesn't happen on rp3440:

I had lots of such problems when I tried various VGA and other
PCI cards in my c3000.

I think HP designed many of the PCI slots for special usage only,
e.g. some slots allow PCI graphic cards while others don't.

Maybe plug your cards one-by-one into another slot and check again?

Helge
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: PCI resource problem on C360
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On 2017-08-03, at 6:45 PM, Helge Deller wrote:

> On 03.08.2017 17:58, John David Anglin wrote:
>> On 2017-08-03, at 10:07 AM, Tom Bogendoerfer wrote:
>> 
>>> Is this a known problem ? Source tree is current parisc git.
>> 
>> I don't think so.  Doesn't happen on rp3440:
> 
> I had lots of such problems when I tried various VGA and other
> PCI cards in my c3000.
> 
> I think HP designed many of the PCI slots for special usage only,
> e.g. some slots allow PCI graphic cards while others don't.
> 
> Maybe plug your cards one-by-one into another slot and check again?

There's something about the firmware disabling dual graphics adapters in slots 1 or 2
if another is plugged into 3 or 4 in the user guide.  I would try slot 4 first.

Some C series units had feeble power supplies and various combination of HP graphics
cards aren't supported.

The c3000 has some PCIX slots and maybe both 3.3 and 5V PCI slots.

I suggest 64bit kernel as it is best tested.

Dave
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From: James Hogan <james.hogan@imgtec.com>
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Subject: [PATCH] docs/features: parisc implements tracehook
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Since commit 64e2a42bca12 ("parisc: Add ARCH_TRACEHOOK and regset
support") in v4.7, parisc selects HAVE_ARCH_TRACEHOOK, so update its
entry in Documentation/features from TODO to ok.

Fixes: 64e2a42bca12 ("parisc: Add ARCH_TRACEHOOK and regset support")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-parisc@vger.kernel.org
Cc: linux-doc@vger.kernel.org
---
 Documentation/features/core/tracehook/arch-support.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/features/core/tracehook/arch-support.txt b/Documentation/features/core/tracehook/arch-support.txt
index 5e97a89420ef..dfb638c2f842 100644
--- a/Documentation/features/core/tracehook/arch-support.txt
+++ b/Documentation/features/core/tracehook/arch-support.txt
@@ -25,7 +25,7 @@
     |     mn10300: |  ok  |
     |       nios2: |  ok  |
     |    openrisc: |  ok  |
-    |      parisc: | TODO |
+    |      parisc: |  ok  |
     |     powerpc: |  ok  |
     |        s390: |  ok  |
     |       score: | TODO |
-- 
2.13.2

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From - Thu Nov 08 21:40:06 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH] parisc: Fix up generic MADV_* values and add MADV_HWPOISON
 and MADV_SOFT_OFFLINE
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This patch adds the missing MADV_HWPOISON (100) and MADV_SOFT_OFFLINE (101)
defines which are needed for an upcoming patch which adds page-deallocation to
parisc.

In addition there is a conflict with some the common/generic MADV_* constants
between kernel headers and glibc headers.  The existing glibc headers on parisc
already define those values in the range of 8-17 which should be common between
all architectures and which all architectures with the exception of parisc
follow.  But the parisc kernel still defines those with values above 65 because
of an old kernel patch which reserved the range of 12-64 for page size
specifications.  The old kernel patch never actually used those values in code,
so changing those MADV_* constants back to the common values shouldn't break
anything and instead make existing userspace applications work as expected.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 5979745..a34ebf4 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -49,16 +49,18 @@
 #define MADV_REMOVE	9		/* remove these pages & resources */
 #define MADV_DONTFORK	10		/* don't inherit across fork */
 #define MADV_DOFORK	11		/* do inherit across fork */
+#define MADV_HWPOISON	100		/* poison a page for testing */
+#define MADV_SOFT_OFFLINE 101		/* soft offline page for testing */
 
-#define MADV_MERGEABLE   65		/* KSM may merge identical pages */
-#define MADV_UNMERGEABLE 66		/* KSM may not merge identical pages */
+#define MADV_MERGEABLE   12		/* KSM may merge identical pages */
+#define MADV_UNMERGEABLE 13		/* KSM may not merge identical pages */
 
-#define MADV_HUGEPAGE	67		/* Worth backing with hugepages */
-#define MADV_NOHUGEPAGE	68		/* Not worth backing with hugepages */
+#define MADV_HUGEPAGE	14		/* Worth backing with hugepages */
+#define MADV_NOHUGEPAGE	15		/* Not worth backing with hugepages */
 
-#define MADV_DONTDUMP   69		/* Explicity exclude from the core dump,
+#define MADV_DONTDUMP   16		/* Explicity exclude from the core dump,
 					   overrides the coredump filter bits */
-#define MADV_DODUMP	70		/* Clear the MADV_NODUMP flag */
+#define MADV_DODUMP	17		/* Clear the MADV_NODUMP flag */
 
 /* compatibility flags */
 #define MAP_FILE	0
diff --git a/tools/arch/parisc/include/uapi/asm/mman.h b/tools/arch/parisc/include/uapi/asm/mman.h
index 03d8d5b..eb4df3e 100644
--- a/tools/arch/parisc/include/uapi/asm/mman.h
+++ b/tools/arch/parisc/include/uapi/asm/mman.h
@@ -1,20 +1,22 @@
 #ifndef TOOLS_ARCH_PARISC_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_PARISC_UAPI_ASM_MMAN_FIX_H
-#define MADV_DODUMP	70
-#define MADV_DOFORK	11
-#define MADV_DONTDUMP   69
-#define MADV_DONTFORK	10
-#define MADV_DONTNEED   4
-#define MADV_FREE	8
-#define MADV_HUGEPAGE	67
-#define MADV_MERGEABLE   65
-#define MADV_NOHUGEPAGE	68
 #define MADV_NORMAL     0
 #define MADV_RANDOM     1
-#define MADV_REMOVE	9
 #define MADV_SEQUENTIAL 2
-#define MADV_UNMERGEABLE 66
 #define MADV_WILLNEED   3
+#define MADV_DONTNEED   4
+#define MADV_FREE	8
+#define MADV_REMOVE	9
+#define MADV_DONTFORK	10
+#define MADV_DOFORK	11
+#define MADV_HWPOISON	100
+#define MADV_SOFT_OFFLINE 101
+#define MADV_MERGEABLE	12
+#define MADV_UNMERGEABLE 13
+#define MADV_HUGEPAGE	14
+#define MADV_NOHUGEPAGE 15
+#define MADV_DONTDUMP	16
+#define MADV_DODUMP	17
 #define MAP_ANONYMOUS	0x10
 #define MAP_DENYWRITE	0x0800
 #define MAP_EXECUTABLE	0x1000
@@ -36,10 +38,6 @@
 #define PROT_READ	0x1
 #define PROT_SEM	0x8
 #define PROT_WRITE	0x2
-/* MADV_HWPOISON is undefined on parisc, fix it for perf */
-#define MADV_HWPOISON	100
-/* MADV_SOFT_OFFLINE is undefined on parisc, fix it for perf */
-#define MADV_SOFT_OFFLINE 101
 /* MAP_32BIT is undefined on parisc, fix it for perf */
 #define MAP_32BIT	0
 /* MAP_UNINITIALIZED is undefined on parisc, fix it for perf */
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: PDT/firmware: Add support to read PDT on older
 PAT-machines
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Older machines with a PAT firmware (e.g. the rp5470) return their Page
Deallocation Table (PDT) info per cell via the PDC_PAT_MEM_PD_INFO PDC call.
This patch adds the necessary structures and wrappers to call firmware.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pdcpat.h b/arch/parisc/include/asm/pdcpat.h
index e3c0586..a468a17 100644
--- a/arch/parisc/include/asm/pdcpat.h
+++ b/arch/parisc/include/asm/pdcpat.h
@@ -223,6 +223,18 @@ struct pdc_pat_mem_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_PD_INFO (return info) */
 	unsigned long clear_time; /* last PDT clear time (since Jan 1970) */
 };
 
+struct pdc_pat_mem_cell_pdt_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_CELL_INFO */
+	u64 reserved:32;
+	u64 cs:1;		/* clear status: cleared since the last call? */
+	u64 current_pdt_entries:15;
+	u64 ic:1;		/* interleaving had to be changed ? */
+	u64 max_pdt_entries:15;
+	unsigned long good_mem;
+	unsigned long first_dbe_loc; /* first location of double bit error */
+	unsigned long clear_time; /* last PDT clear time (since Jan 1970) */
+};
+
+
 struct pdc_pat_mem_read_pd_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_PD_READ */
 	unsigned long actual_count_bytes;
 	unsigned long pdt_entries;
@@ -325,6 +337,8 @@ extern int pdc_pat_io_pci_cfg_read(unsigned long pci_addr, int pci_size, u32 *va
 extern int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val); 
 
 extern int pdc_pat_mem_pdt_info(struct pdc_pat_mem_retinfo *rinfo);
+extern int pdc_pat_mem_pdt_cell_info(struct pdc_pat_mem_cell_pdt_retinfo *rinfo,
+		unsigned long cell);
 extern int pdc_pat_mem_read_cell_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
 		unsigned long *pdt_entries_ptr, unsigned long max_entries);
 extern int pdc_pat_mem_read_pd_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index f622a31..be9a2e8 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -142,8 +142,8 @@ static void convert_to_wide(unsigned long *addr)
 	int i;
 	unsigned int *p = (unsigned int *)addr;
 
-	if(unlikely(parisc_narrow_firmware)) {
-		for(i = 31; i >= 0; --i)
+	if (unlikely(parisc_narrow_firmware)) {
+		for (i = (NUM_PDC_RESULT-1); i >= 0; --i)
 			addr[i] = p[i];
 	}
 #endif
@@ -979,16 +979,22 @@ int pdc_mem_pdt_read_entries(struct pdc_mem_read_pdt *pret,
 
 	spin_lock_irqsave(&pdc_lock, flags);
 	retval = mem_pdc_call(PDC_MEM, PDC_MEM_READ_PDT, __pa(pdc_result),
-			__pa(pdc_result2));
+			__pa(pdt_entries_ptr));
 	if (retval == PDC_OK) {
 		convert_to_wide(pdc_result);
 		memcpy(pret, pdc_result, sizeof(*pret));
-		convert_to_wide(pdc_result2);
-		memcpy(pdt_entries_ptr, pdc_result2,
-			pret->pdt_entries * sizeof(*pdt_entries_ptr));
 	}
 	spin_unlock_irqrestore(&pdc_lock, flags);
 
+#ifdef CONFIG_64BIT
+	/*
+	 * 64-bit kernels should not call this PDT function in narrow mode.
+	 * The pdt_entries_ptr array above will now contain 32-bit values
+	 */
+	if (WARN_ON_ONCE((retval == PDC_OK) && parisc_narrow_firmware))
+		return PDC_ERROR;
+#endif
+
 	return retval;
 }
 
@@ -1440,6 +1446,29 @@ int pdc_pat_mem_pdt_info(struct pdc_pat_mem_retinfo *rinfo)
 }
 
 /**
+ * pdc_pat_mem_pdt_cell_info - Retrieve information about page deallocation
+ *				table of a cell
+ * @rinfo: memory pdt information
+ * @cell: cell number
+ *
+ */
+int pdc_pat_mem_pdt_cell_info(struct pdc_pat_mem_cell_pdt_retinfo *rinfo,
+		unsigned long cell)
+{
+	int retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_CELL_INFO,
+			__pa(&pdc_result), cell);
+	if (retval == PDC_OK)
+		memcpy(rinfo, &pdc_result, sizeof(*rinfo));
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
+
+/**
  * pdc_pat_mem_read_cell_pdt - Read PDT entries from (old) PAT firmware
  * @pret: array of PDT entries
  * @pdt_entries_ptr: ptr to hold number of PDT entries
@@ -1455,14 +1484,14 @@ int pdc_pat_mem_read_cell_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
 	spin_lock_irqsave(&pdc_lock, flags);
 	/* PDC_PAT_MEM_CELL_READ is available on early PAT machines only */
 	retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_CELL_READ,
-			__pa(&pdc_result), parisc_cell_num, __pa(&pdc_result2));
+			__pa(&pdc_result), parisc_cell_num,
+			__pa(pdt_entries_ptr));
 
 	if (retval == PDC_OK) {
 		/* build up return value as for PDC_PAT_MEM_PD_READ */
 		entries = min(pdc_result[0], max_entries);
 		pret->pdt_entries = entries;
 		pret->actual_count_bytes = entries * sizeof(unsigned long);
-		memcpy(pdt_entries_ptr, &pdc_result2, pret->actual_count_bytes);
 	}
 
 	spin_unlock_irqrestore(&pdc_lock, flags);
@@ -1474,6 +1503,8 @@ int pdc_pat_mem_read_cell_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
  * pdc_pat_mem_read_pd_pdt - Read PDT entries from (newer) PAT firmware
  * @pret: array of PDT entries
  * @pdt_entries_ptr: ptr to hold number of PDT entries
+ * @count: number of bytes to read
+ * @offset: offset to start (in bytes)
  *
  */
 int pdc_pat_mem_read_pd_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
--
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From - Thu Nov 08 21:40:06 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: PDT: Add full support for memory failure via Page
 Deallocation Table (PDT)
Date: Fri, 4 Aug 2017 19:23:53 +0200
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parisc: PDT: Add full support for memory failure via Page Deallocation Table (PDT)

This patch adds full support to read PDT info on all machine types.  At bootup
the PDT is read and bad memory excluded from usage via memblock_reserve().

Later in the boot process a kernel thread is started (kpdtd) which regularily
checks firmare for new reported bad memory and tries to soft offline pages in
case of correctable errors and to kill processes and exclude such memory in
case of uncorrectable errors via memory_failure().

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index dda1f55..7d2faf7 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -9,6 +9,7 @@ config PARISC
 	select ARCH_WANT_FRAME_POINTERS
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_STRICT_KERNEL_RWX
+	select ARCH_SUPPORTS_MEMORY_FAILURE
 	select RTC_CLASS
 	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
index d02874e..05730a8 100644
--- a/arch/parisc/kernel/pdt.c
+++ b/arch/parisc/kernel/pdt.c
@@ -1,19 +1,20 @@
 /*
  *    Page Deallocation Table (PDT) support
  *
- *    The Page Deallocation Table (PDT) holds a table with pointers to bad
- *    memory (broken RAM modules) which is maintained by firmware.
+ *    The Page Deallocation Table (PDT) is maintained by firmware and holds a
+ *    list of memory addresses in which memory errors were detected.
+ *    The list contains both single-bit (correctable) and double-bit
+ *    (uncorrectable) errors.
  *
  *    Copyright 2017 by Helge Deller <deller@gmx.de>
  *
- *    TODO:
- *    - check regularily for new bad memory
- *    - add userspace interface with procfs or sysfs
- *    - increase number of PDT entries dynamically
+ *    possible future enhancements:
+ *    - add userspace interface via procfs or sysfs to clear PDT
  */
 
 #include <linux/memblock.h>
 #include <linux/seq_file.h>
+#include <linux/kthread.h>
 
 #include <asm/pdc.h>
 #include <asm/pdcpat.h>
@@ -24,11 +25,16 @@ enum pdt_access_type {
 	PDT_NONE,
 	PDT_PDC,
 	PDT_PAT_NEW,
-	PDT_PAT_OLD
+	PDT_PAT_CELL
 };
 
 static enum pdt_access_type pdt_type;
 
+/* PDT poll interval: 1 minute if errors, 5 minutes if everything OK. */
+#define PDT_POLL_INTERVAL_DEFAULT	(5*60*HZ)
+#define PDT_POLL_INTERVAL_SHORT		(1*60*HZ)
+static unsigned long pdt_poll_interval = PDT_POLL_INTERVAL_DEFAULT;
+
 /* global PDT status information */
 static struct pdc_mem_retinfo pdt_status;
 
@@ -36,6 +42,21 @@ static struct pdc_mem_retinfo pdt_status;
 #define MAX_PDT_ENTRIES		(MAX_PDT_TABLE_SIZE / sizeof(unsigned long))
 static unsigned long pdt_entry[MAX_PDT_ENTRIES] __page_aligned_bss;
 
+/*
+ * Constants for the pdt_entry format:
+ * A pdt_entry holds the physical address in bits 0-57, bits 58-61 are
+ * reserved, bit 62 is the perm bit and bit 63 is the error_type bit.
+ * The perm bit indicates whether the error have been verified as a permanent
+ * error (value of 1) or has not been verified, and may be transient (value
+ * of 0). The error_type bit indicates whether the error is a single bit error
+ * (value of 1) or a multiple bit error.
+ * On non-PAT machines phys_addr is encoded in bits 0-59 and error_type in bit
+ * 63. Those machines don't provide the perm bit.
+ */
+
+#define PDT_ADDR_PHYS_MASK	(pdt_type != PDT_PDC ? ~0x3f : ~0x0f)
+#define PDT_ADDR_PERM_ERR	(pdt_type != PDT_PDC ? 2UL : 0UL)
+#define PDT_ADDR_SINGLE_ERR	1UL
 
 /* report PDT entries via /proc/meminfo */
 void arch_report_meminfo(struct seq_file *m)
@@ -49,6 +70,68 @@ void arch_report_meminfo(struct seq_file *m)
 			pdt_status.pdt_entries);
 }
 
+static int get_info_pat_new(void)
+{
+	struct pdc_pat_mem_retinfo pat_rinfo;
+	int ret;
+
+	/* newer PAT machines like C8000 report info for all cells */
+	if (is_pdc_pat())
+		ret = pdc_pat_mem_pdt_info(&pat_rinfo);
+	else
+		return PDC_BAD_PROC;
+
+	pdt_status.pdt_size = pat_rinfo.max_pdt_entries;
+	pdt_status.pdt_entries = pat_rinfo.current_pdt_entries;
+	pdt_status.pdt_status = 0;
+	pdt_status.first_dbe_loc = pat_rinfo.first_dbe_loc;
+	pdt_status.good_mem = pat_rinfo.good_mem;
+
+	return ret;
+}
+
+static int get_info_pat_cell(void)
+{
+	struct pdc_pat_mem_cell_pdt_retinfo cell_rinfo;
+	int ret;
+
+	/* older PAT machines like rp5470 report cell info only */
+	if (is_pdc_pat())
+		ret = pdc_pat_mem_pdt_cell_info(&cell_rinfo, parisc_cell_num);
+	else
+		return PDC_BAD_PROC;
+
+	pdt_status.pdt_size = cell_rinfo.max_pdt_entries;
+	pdt_status.pdt_entries = cell_rinfo.current_pdt_entries;
+	pdt_status.pdt_status = 0;
+	pdt_status.first_dbe_loc = cell_rinfo.first_dbe_loc;
+	pdt_status.good_mem = cell_rinfo.good_mem;
+
+	return ret;
+}
+
+static void report_mem_err(unsigned long pde)
+{
+	struct pdc_pat_mem_phys_mem_location loc;
+	unsigned long addr;
+	char dimm_txt[32];
+
+	addr = pde & PDT_ADDR_PHYS_MASK;
+
+	/* show DIMM slot description on PAT machines */
+	if (is_pdc_pat()) {
+		pdc_pat_mem_get_dimm_phys_location(&loc, addr);
+		sprintf(dimm_txt, "DIMM slot %02x, ", loc.dimm_slot);
+	} else
+		dimm_txt[0] = 0;
+
+	pr_warn("PDT: BAD MEMORY at 0x%08lx, %s%s%s-bit error.\n",
+		addr, dimm_txt,
+		pde & PDT_ADDR_PERM_ERR ? "permanent ":"",
+		pde & PDT_ADDR_SINGLE_ERR ? "single":"multi");
+}
+
+
 /*
  * pdc_pdt_init()
  *
@@ -63,18 +146,17 @@ void __init pdc_pdt_init(void)
 	unsigned long entries;
 	struct pdc_mem_read_pdt pdt_read_ret;
 
-	if (is_pdc_pat()) {
-		struct pdc_pat_mem_retinfo pat_rinfo;
+	pdt_type = PDT_PAT_NEW;
+	ret = get_info_pat_new();
 
-		pdt_type = PDT_PAT_NEW;
-		ret = pdc_pat_mem_pdt_info(&pat_rinfo);
-		pdt_status.pdt_size = pat_rinfo.max_pdt_entries;
-		pdt_status.pdt_entries = pat_rinfo.current_pdt_entries;
-		pdt_status.pdt_status = 0;
-		pdt_status.first_dbe_loc = pat_rinfo.first_dbe_loc;
-		pdt_status.good_mem = pat_rinfo.good_mem;
-	} else {
+	if (ret != PDC_OK) {
+		pdt_type = PDT_PAT_CELL;
+		ret = get_info_pat_cell();
+	}
+
+	if (ret != PDC_OK) {
 		pdt_type = PDT_PDC;
+		/* non-PAT machines provide the standard PDC call */
 		ret = pdc_mem_pdt_info(&pdt_status);
 	}
 
@@ -86,13 +168,17 @@ void __init pdc_pdt_init(void)
 	}
 
 	entries = pdt_status.pdt_entries;
-	WARN_ON(entries > MAX_PDT_ENTRIES);
+	if (WARN_ON(entries > MAX_PDT_ENTRIES))
+		entries = pdt_status.pdt_entries = MAX_PDT_ENTRIES;
 
-	pr_info("PDT: size %lu, entries %lu, status %lu, dbe_loc 0x%lx,"
-		" good_mem %lu\n",
+	pr_info("PDT: type %s, size %lu, entries %lu, status %lu, dbe_loc 0x%lx,"
+		" good_mem %lu MB\n",
+			pdt_type == PDT_PDC ? __stringify(PDT_PDC) :
+			pdt_type == PDT_PAT_CELL ? __stringify(PDT_PAT_CELL)
+						 : __stringify(PDT_PAT_NEW),
 			pdt_status.pdt_size, pdt_status.pdt_entries,
 			pdt_status.pdt_status, pdt_status.first_dbe_loc,
-			pdt_status.good_mem);
+			pdt_status.good_mem / 1024 / 1024);
 
 	if (entries == 0) {
 		pr_info("PDT: Firmware reports all memory OK.\n");
@@ -112,15 +198,12 @@ void __init pdc_pdt_init(void)
 #ifdef CONFIG_64BIT
 		struct pdc_pat_mem_read_pd_retinfo pat_pret;
 
-		/* try old obsolete PAT firmware function first */
-		pdt_type = PDT_PAT_OLD;
-		ret = pdc_pat_mem_read_cell_pdt(&pat_pret, pdt_entry,
-			MAX_PDT_ENTRIES);
-		if (ret != PDC_OK) {
-			pdt_type = PDT_PAT_NEW;
+		if (pdt_type == PDT_PAT_CELL)
+			ret = pdc_pat_mem_read_cell_pdt(&pat_pret, pdt_entry,
+				MAX_PDT_ENTRIES);
+		else
 			ret = pdc_pat_mem_read_pd_pdt(&pat_pret, pdt_entry,
 				MAX_PDT_TABLE_SIZE, 0);
-		}
 #else
 		ret = PDC_BAD_PROC;
 #endif
@@ -128,27 +211,142 @@ void __init pdc_pdt_init(void)
 
 	if (ret != PDC_OK) {
 		pdt_type = PDT_NONE;
-		pr_debug("PDT type %d, retval = %d\n", pdt_type, ret);
+		pr_warn("PDT: Get PDT entries failed with %d\n", ret);
 		return;
 	}
 
 	for (i = 0; i < pdt_status.pdt_entries; i++) {
-		struct pdc_pat_mem_phys_mem_location loc;
+		report_mem_err(pdt_entry[i]);
+
+		/* mark memory page bad */
+		memblock_reserve(pdt_entry[i] & PAGE_MASK, PAGE_SIZE);
+	}
+}
 
-		/* get DIMM slot number */
-		loc.dimm_slot = 0xff;
+
+/*
+ * This is the PDT kernel thread main loop.
+ */
+
+static int pdt_mainloop(void *unused)
+{
+	struct pdc_mem_read_pdt pdt_read_ret;
+	struct pdc_pat_mem_read_pd_retinfo pat_pret __maybe_unused;
+	unsigned long old_num_entries;
+	unsigned long *bad_mem_ptr;
+	int num, ret;
+
+	for (;;) {
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		old_num_entries = pdt_status.pdt_entries;
+
+		schedule_timeout(pdt_poll_interval);
+		if (kthread_should_stop())
+			break;
+
+		/* Do we have new PDT entries? */
+		switch (pdt_type) {
+		case PDT_PAT_NEW:
+			ret = get_info_pat_new();
+			break;
+		case PDT_PAT_CELL:
+			ret = get_info_pat_cell();
+			break;
+		default:
+			ret = pdc_mem_pdt_info(&pdt_status);
+			break;
+		}
+
+		if (ret != PDC_OK) {
+			pr_warn("PDT: unexpected failure %d\n", ret);
+			return -EINVAL;
+		}
+
+		/* if no new PDT entries, just wait again */
+		num = pdt_status.pdt_entries - old_num_entries;
+		if (num <= 0)
+			continue;
+
+		/* decrease poll interval in case we found memory errors */
+		if (pdt_status.pdt_entries &&
+			pdt_poll_interval == PDT_POLL_INTERVAL_DEFAULT)
+			pdt_poll_interval = PDT_POLL_INTERVAL_SHORT;
+
+		/* limit entries to get */
+		if (num > MAX_PDT_ENTRIES) {
+			num = MAX_PDT_ENTRIES;
+			pdt_status.pdt_entries = old_num_entries + num;
+		}
+
+		/* get new entries */
+		switch (pdt_type) {
 #ifdef CONFIG_64BIT
-		pdc_pat_mem_get_dimm_phys_location(&loc, pdt_entry[i]);
+		case PDT_PAT_CELL:
+			if (pdt_status.pdt_entries > MAX_PDT_ENTRIES) {
+				pr_crit("PDT: too many entries.\n");
+				return -ENOMEM;
+			}
+			ret = pdc_pat_mem_read_cell_pdt(&pat_pret, pdt_entry,
+				MAX_PDT_ENTRIES);
+			bad_mem_ptr = &pdt_entry[old_num_entries];
+			break;
+		case PDT_PAT_NEW:
+			ret = pdc_pat_mem_read_pd_pdt(&pat_pret,
+				pdt_entry,
+				num * sizeof(unsigned long),
+				old_num_entries * sizeof(unsigned long));
+			bad_mem_ptr = &pdt_entry[0];
+			break;
 #endif
+		default:
+			ret = pdc_mem_pdt_read_entries(&pdt_read_ret,
+				pdt_entry);
+			bad_mem_ptr = &pdt_entry[old_num_entries];
+			break;
+		}
 
-		pr_warn("PDT: BAD PAGE #%d at 0x%08lx, "
-			"DIMM slot %02x (error_type = %lu)\n",
-			i,
-			pdt_entry[i] & PAGE_MASK,
-			loc.dimm_slot,
-			pdt_entry[i] & 1);
+		/* report and mark memory broken */
+		while (num--) {
+			unsigned long pde = *bad_mem_ptr++;
 
-		/* mark memory page bad */
-		memblock_reserve(pdt_entry[i] & PAGE_MASK, PAGE_SIZE);
+			report_mem_err(pde);
+
+#ifdef CONFIG_MEMORY_FAILURE
+			if ((pde & PDT_ADDR_PERM_ERR) ||
+			    ((pde & PDT_ADDR_SINGLE_ERR) == 0))
+				memory_failure(pde >> PAGE_SHIFT, 0, 0);
+			else
+				soft_offline_page(
+					pfn_to_page(pde >> PAGE_SHIFT), 0);
+#else
+			pr_crit("PDT: memory error at 0x%lx ignored.\n"
+				"Rebuild kernel with CONFIG_MEMORY_FAILURE=y "
+				"for real handling.\n",
+				pde & PDT_ADDR_PHYS_MASK);
+#endif
+
+		}
 	}
+
+	return 0;
 }
+
+
+static int __init pdt_initcall(void)
+{
+	struct task_struct *kpdtd_task;
+
+	if (pdt_type == PDT_NONE)
+		return -ENODEV;
+
+	kpdtd_task = kthread_create(pdt_mainloop, NULL, "kpdtd");
+	if (IS_ERR(kpdtd_task))
+		return PTR_ERR(kpdtd_task);
+
+	wake_up_process(kpdtd_task);
+
+	return 0;
+}
+
+late_initcall(pdt_initcall);
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From: Helge Deller <deller@gmx.de>
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Subject: Re: [PATCH] parisc: Fix up generic MADV_* values and add
 MADV_HWPOISON and MADV_SOFT_OFFLINE
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Xref: news.gmane.org gmane.linux.ports.parisc:27625 gmane.linux.kernel:2540882
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On 04.08.2017 18:31, Helge Deller wrote:
> In addition there is a conflict with some the common/generic MADV_* constants
> between kernel headers and glibc headers.  

Please ignore this patch.
I was wrong: kernel and glibc are in sync.

Nevertheless, maybe adjusting the parisc values to the default values in kernel and
glibe would make sense. Even if it's a ABI change, the impact of such a change is probably low
given the fact that those madvise values are hints.

Helge 

> The existing glibc headers on parisc
> already define those values in the range of 8-17 which should be common between
> all architectures and which all architectures with the exception of parisc
> follow.  But the parisc kernel still defines those with values above 65 because
> of an old kernel patch which reserved the range of 12-64 for page size
> specifications.  The old kernel patch never actually used those values in code,
> so changing those MADV_* constants back to the common values shouldn't break
> anything and instead make existing userspace applications work as expected.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
> index 5979745..a34ebf4 100644
> --- a/arch/parisc/include/uapi/asm/mman.h
> +++ b/arch/parisc/include/uapi/asm/mman.h
> @@ -49,16 +49,18 @@
>  #define MADV_REMOVE	9		/* remove these pages & resources */
>  #define MADV_DONTFORK	10		/* don't inherit across fork */
>  #define MADV_DOFORK	11		/* do inherit across fork */
> +#define MADV_HWPOISON	100		/* poison a page for testing */
> +#define MADV_SOFT_OFFLINE 101		/* soft offline page for testing */
>  
> -#define MADV_MERGEABLE   65		/* KSM may merge identical pages */
> -#define MADV_UNMERGEABLE 66		/* KSM may not merge identical pages */
> +#define MADV_MERGEABLE   12		/* KSM may merge identical pages */
> +#define MADV_UNMERGEABLE 13		/* KSM may not merge identical pages */
>  
> -#define MADV_HUGEPAGE	67		/* Worth backing with hugepages */
> -#define MADV_NOHUGEPAGE	68		/* Not worth backing with hugepages */
> +#define MADV_HUGEPAGE	14		/* Worth backing with hugepages */
> +#define MADV_NOHUGEPAGE	15		/* Not worth backing with hugepages */
>  
> -#define MADV_DONTDUMP   69		/* Explicity exclude from the core dump,
> +#define MADV_DONTDUMP   16		/* Explicity exclude from the core dump,
>  					   overrides the coredump filter bits */
> -#define MADV_DODUMP	70		/* Clear the MADV_NODUMP flag */
> +#define MADV_DODUMP	17		/* Clear the MADV_NODUMP flag */
>  
>  /* compatibility flags */
>  #define MAP_FILE	0
> diff --git a/tools/arch/parisc/include/uapi/asm/mman.h b/tools/arch/parisc/include/uapi/asm/mman.h
> index 03d8d5b..eb4df3e 100644
> --- a/tools/arch/parisc/include/uapi/asm/mman.h
> +++ b/tools/arch/parisc/include/uapi/asm/mman.h
> @@ -1,20 +1,22 @@
>  #ifndef TOOLS_ARCH_PARISC_UAPI_ASM_MMAN_FIX_H
>  #define TOOLS_ARCH_PARISC_UAPI_ASM_MMAN_FIX_H
> -#define MADV_DODUMP	70
> -#define MADV_DOFORK	11
> -#define MADV_DONTDUMP   69
> -#define MADV_DONTFORK	10
> -#define MADV_DONTNEED   4
> -#define MADV_FREE	8
> -#define MADV_HUGEPAGE	67
> -#define MADV_MERGEABLE   65
> -#define MADV_NOHUGEPAGE	68
>  #define MADV_NORMAL     0
>  #define MADV_RANDOM     1
> -#define MADV_REMOVE	9
>  #define MADV_SEQUENTIAL 2
> -#define MADV_UNMERGEABLE 66
>  #define MADV_WILLNEED   3
> +#define MADV_DONTNEED   4
> +#define MADV_FREE	8
> +#define MADV_REMOVE	9
> +#define MADV_DONTFORK	10
> +#define MADV_DOFORK	11
> +#define MADV_HWPOISON	100
> +#define MADV_SOFT_OFFLINE 101
> +#define MADV_MERGEABLE	12
> +#define MADV_UNMERGEABLE 13
> +#define MADV_HUGEPAGE	14
> +#define MADV_NOHUGEPAGE 15
> +#define MADV_DONTDUMP	16
> +#define MADV_DODUMP	17
>  #define MAP_ANONYMOUS	0x10
>  #define MAP_DENYWRITE	0x0800
>  #define MAP_EXECUTABLE	0x1000
> @@ -36,10 +38,6 @@
>  #define PROT_READ	0x1
>  #define PROT_SEM	0x8
>  #define PROT_WRITE	0x2
> -/* MADV_HWPOISON is undefined on parisc, fix it for perf */
> -#define MADV_HWPOISON	100
> -/* MADV_SOFT_OFFLINE is undefined on parisc, fix it for perf */
> -#define MADV_SOFT_OFFLINE 101
>  /* MAP_32BIT is undefined on parisc, fix it for perf */
>  #define MAP_32BIT	0
>  /* MAP_UNINITIALIZED is undefined on parisc, fix it for perf */
> 

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From - Thu Nov 08 21:40:06 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Add MADV_HWPOISON and MADV_SOFT_OFFLINE
Date: Fri, 4 Aug 2017 20:07:41 +0200
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Add the missing MADV_HWPOISON (100) and MADV_SOFT_OFFLINE (101) defines which
are needed for an upcoming patch which adds page-deallocation for parisc.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 5979745..2e7b8c2 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -60,6 +60,9 @@
 					   overrides the coredump filter bits */
 #define MADV_DODUMP	70		/* Clear the MADV_NODUMP flag */
 
+#define MADV_HWPOISON     100		/* poison a page for testing */
+#define MADV_SOFT_OFFLINE 101		/* soft offline page for testing */
+
 /* compatibility flags */
 #define MAP_FILE	0
 #define MAP_VARIABLE	0
diff --git a/tools/arch/parisc/include/uapi/asm/mman.h b/tools/arch/parisc/include/uapi/asm/mman.h
index 03d8d5b..286c0bd 100644
--- a/tools/arch/parisc/include/uapi/asm/mman.h
+++ b/tools/arch/parisc/include/uapi/asm/mman.h
@@ -36,9 +36,7 @@
 #define PROT_READ	0x1
 #define PROT_SEM	0x8
 #define PROT_WRITE	0x2
-/* MADV_HWPOISON is undefined on parisc, fix it for perf */
 #define MADV_HWPOISON	100
-/* MADV_SOFT_OFFLINE is undefined on parisc, fix it for perf */
 #define MADV_SOFT_OFFLINE 101
 /* MAP_32BIT is undefined on parisc, fix it for perf */
 #define MAP_32BIT	0
--
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From - Thu Nov 08 21:40:06 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Drop MADV_SPACEAVAIL, MADV_VPS_PURGE and
 MADV_VPS_INHERIT
Date: Fri, 4 Aug 2017 21:32:41 +0200
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Those aren't used or implemented anywhere in Linux.

Furthermore, MADV_SPACEAVAIL seems to be a HP-UX related flag which is
implemented as null operation in HP-UX. And since we don't support running
HP-UX binaries there is no need to keep it.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 2e7b8c2..9a9c2fe 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -40,9 +40,6 @@
 #define MADV_SEQUENTIAL 2               /* expect sequential page references */
 #define MADV_WILLNEED   3               /* will need these pages */
 #define MADV_DONTNEED   4               /* don't need these pages */
-#define MADV_SPACEAVAIL 5               /* insure that resources are reserved */
-#define MADV_VPS_PURGE  6               /* Purge pages from VM page cache */
-#define MADV_VPS_INHERIT 7              /* Inherit parents page size */
 
 /* common/generic parameters */
 #define MADV_FREE	8		/* free pages only if memory pressure */
--
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From - Thu Nov 08 21:40:06 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Enable UBSAN support
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 7d2faf7..9db4b4f 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -9,6 +9,8 @@ config PARISC
 	select ARCH_WANT_FRAME_POINTERS
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_STRICT_KERNEL_RWX
+	select ARCH_HAS_UBSAN_SANITIZE_ALL
+	select ARCH_WANTS_UBSAN_NO_NULL
 	select ARCH_SUPPORTS_MEMORY_FAILURE
 	select RTC_CLASS
 	select RTC_DRV_GENERIC
--
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From - Thu Nov 08 21:40:06 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Static initialization of spinlocks in perf and
 unwind code
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While testing UBSAN I saw this BUG:
 BUG: spinlock bad magic on CPU#0, swapper/0
in unwind code. Let's avoid that by static initialization.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index 6017a5a..08133590 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -69,7 +69,7 @@ struct rdr_tbl_ent {
 
 static int perf_processor_interface __read_mostly = UNKNOWN_INTF;
 static int perf_enabled __read_mostly;
-static spinlock_t perf_lock;
+static DEFINE_SPINLOCK(perf_lock);
 struct parisc_device *cpu_device __read_mostly;
 
 /* RDRs to write for PCX-W */
@@ -533,8 +533,6 @@ static int __init perf_init(void)
 	/* Patch the images to match the system */
     	perf_patch_images();
 
-	spin_lock_init(&perf_lock);
-
 	/* TODO: this only lets us access the first cpu.. what to do for SMP? */
 	cpu_device = per_cpu(cpu_data, 0).dev;
 	printk("Performance monitoring counters enabled for %s\n",
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 1b73690..48dc7d4 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -34,7 +34,7 @@
 extern struct unwind_table_entry __start___unwind[];
 extern struct unwind_table_entry __stop___unwind[];
 
-static spinlock_t unwind_lock;
+static DEFINE_SPINLOCK(unwind_lock);
 /*
  * the kernel unwind block is not dynamically allocated so that
  * we can call unwind_init as early in the bootup process as 
@@ -181,8 +181,6 @@ int __init unwind_init(void)
 	start = (long)&__start___unwind[0];
 	stop = (long)&__stop___unwind[0];
 
-	spin_lock_init(&unwind_lock);

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Subject: Undefined behaviour in drivers/scsi/sym53c8xx_2/sym_hipd.c:762:24
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On the parisc platform I noticed the UBSAN warning below.
Maybe nr_divisor isn't correctly initialized ?
Helge

[   18.555455] sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 68
[   18.625415] ================================================================================
[   18.726489] UBSAN: Undefined behaviour in ./drivers/scsi/sym53c8xx_2/sym_hipd.c:762:24
[   18.864911] index -1903078336 is out of range for type 'u32 [7]'
[   18.936779] CPU: 0 PID: 1 Comm: swapper Not tainted 4.13.0-rc3-32bit+ #427
[   19.019138] Backtrace:
[   19.047353]  [<10191eb4>] show_stack+0x3c/0x50
[   19.100577]  [<10ce82fc>] dump_stack+0x28/0x38
[   19.153826]  [<10771b3c>] ubsan_epilogue+0x1c/0x60
[   19.211229]  [<107722ec>] __ubsan_handle_out_of_bounds+0x68/0x80
[   19.283194]  [<10924074>] sym_hcb_attach+0xc2c/0x3204
[   19.343724]  [<107aaa38>] sba_dma_supported+0x4c/0x208
[   19.405291]  [<10911984>] sym2_probe+0xd64/0x122c
[   19.461661]  [<10501c64>] kernfs_add_one+0x328/0x354
[   19.521134] 
[   19.538916] ================================================================================
[   19.640086] sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
[   19.725169] sym0: SCSI BUS has been reset.
[   19.774192] sym0: SCSI BUS mode change from SE to SE.
[   19.837034] sym0: SCSI BUS has been reset.
[   19.886092] scsi host0: sym-2.2.3
[   25.154088] sym1: <896> rev 0x7 at pci 0000:00:0f.1 irq 68
[   25.222639] sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
[   25.308775] sym1: SCSI BUS has been reset.
[   25.357840] scsi host1: sym-2.2.3
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On 2017-08-04, at 6:12 PM, Helge Deller wrote:

> On the parisc platform I noticed the UBSAN warning below.
> Maybe nr_divisor isn't correctly initialized ?
> Helge
> 
> [   18.555455] sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 68
> [   18.625415] ================================================================================
> [   18.726489] UBSAN: Undefined behaviour in ./drivers/scsi/sym53c8xx_2/sym_hipd.c:762:24
> [   18.864911] index -1903078336 is out of range for type 'u32 [7]'

What about np->clock_divn?

Dave
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On Fri, 4 Aug 2017 11:28:39 +0100
James Hogan <james.hogan@imgtec.com> wrote:

> Since commit 64e2a42bca12 ("parisc: Add ARCH_TRACEHOOK and regset
> support") in v4.7, parisc selects HAVE_ARCH_TRACEHOOK, so update its
> entry in Documentation/features from TODO to ok.

Applied to the docs tree, thanks.

jon
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index 99115cd..865a7f7 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -27,8 +27,6 @@
 #include <linux/compiler.h>
 #include <linux/uaccess.h>
 
-DECLARE_PER_CPU(struct exception_data, exception_data);

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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 5f0067a..bd4c0a7 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -41,7 +41,7 @@ static unsigned long pcxl_used_bytes __read_mostly = 0;
 static unsigned long pcxl_used_pages __read_mostly = 0;
 
 extern unsigned long pcxl_dma_start; /* Start of pcxl dma mapping area */
-static spinlock_t   pcxl_res_lock;
+static DEFINE_SPINLOCK(pcxl_res_lock);
 static char    *pcxl_res_map;
 static int     pcxl_res_hint;
 static int     pcxl_res_size;
@@ -390,7 +390,6 @@ pcxl_dma_init(void)
 	if (pcxl_dma_start == 0)
 		return 0;
 
-	spin_lock_init(&pcxl_res_lock);
 	pcxl_res_size = PCXL_DMA_MAP_SIZE >> (PAGE_SHIFT + 3);
 	pcxl_res_hint = 0;
 	pcxl_res_map = (char *)__get_free_pages(GFP_KERNEL,
--
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Subject: Re: Undefined behaviour in drivers/scsi/sym53c8xx_2/sym_hipd.c:762:24
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On 05.08.2017 00:12, Helge Deller wrote:
> On the parisc platform I noticed the UBSAN warning below.
> Maybe nr_divisor isn't correctly initialized ?
> 
> [   18.625415] ================================================================================
> [   18.726489] UBSAN: Undefined behaviour in ./drivers/scsi/sym53c8xx_2/sym_hipd.c:762:24
> [   18.864911] index -1903078336 is out of range for type 'u32 [7]'
> [   18.936779] CPU: 0 PID: 1 Comm: swapper Not tainted 4.13.0-rc3-32bit+ #427
> [   19.019138] Backtrace:
> [   19.047353]  [<10191eb4>] show_stack+0x3c/0x50
> [   19.100577]  [<10ce82fc>] dump_stack+0x28/0x38
> [   19.153826]  [<10771b3c>] ubsan_epilogue+0x1c/0x60
> [   19.211229]  [<107722ec>] __ubsan_handle_out_of_bounds+0x68/0x80
> [   19.283194]  [<10924074>] sym_hcb_attach+0xc2c/0x3204
> [   19.343724]  [<107aaa38>] sba_dma_supported+0x4c/0x208
> [   19.405291]  [<10911984>] sym2_probe+0xd64/0x122c
> [   19.461661]  [<10501c64>] kernfs_add_one+0x328/0x354

I did some more debugging.

The offending line is:
	period = (11 * div_10M[np->clock_divn - 1]) / (4 * np->clock_khz);
with those values
	np->clock_divn = 7
	np->clock_khz  = 160000
	div_10M[6] = 80000000
period gets calculated as: 
	period = 1375
which is correct.

I have no clue why UBSAN reports an error here.
There is no overflow in index for div_10M array, neither is there
a u32 overflow.
Ideas?

Helge
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From - Thu Nov 08 21:40:07 2018
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Subject: Re: PCI resource problem on C360
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On Fri, Aug 04, 2017 at 12:45:31AM +0200, Helge Deller wrote:
> I had lots of such problems when I tried various VGA and other
> PCI cards in my c3000.

I know, but the get a MACH64 card up to sync in a B2600, with a small
change in aty driver. And the change is because Astro/Elroy behave incorrect
in respect to PCI standards, IMHO. It looks like it colapses multiple PCI
mem accesses into one access.

        aty_st_8(CLOCK_CNTL_ADDR, ((offset << 2) & PLL_ADDR) | PLL_WR_EN, par);
        /* write the register value */
        aty_st_8(CLOCK_CNTL_DATA, val & PLL_DATA, par);
        aty_st_8(CLOCK_CNTL_ADDR, ((offset << 2) & PLL_ADDR) & ~PLL_WR_EN, par);

B2600 HPMCs in this code sequence, probably because the two accesses
to CNTL_ADDR end up in just the last access. Placing in aty_ld_8 after
the first aty_st_8 avoids the problem. In a B180 everything is fine,
so Dino doesn't do that. Next testbed is the C360, which shows the PCI
resourec issue before it even comes to aty drvier.

> I think HP designed many of the PCI slots for special usage only,
> e.g. some slots allow PCI graphic cards while others don't.
> 
> Maybe plug your cards one-by-one into another slot and check again?

will do that, but what looks strange to me is the fact that ethernet and
scsi also don't get all resources assigned. This happened without the VGA
card plugged in, too.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: PCI resource problem on C360
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To: Tom Bogendoerfer <tsbogend@alpha.franken.de>
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On 08.08.2017 15:40, Tom Bogendoerfer wrote:
> On Fri, Aug 04, 2017 at 12:45:31AM +0200, Helge Deller wrote:
>> I had lots of such problems when I tried various VGA and other
>> PCI cards in my c3000.
> 
> I know, but the get a MACH64 card up to sync in a B2600, with a small
> change in aty driver. And the change is because Astro/Elroy behave incorrect
> in respect to PCI standards, IMHO. It looks like it colapses multiple PCI
> mem accesses into one access.

Yes, I think that's true.
 
>         aty_st_8(CLOCK_CNTL_ADDR, ((offset << 2) & PLL_ADDR) | PLL_WR_EN, par);
>         /* write the register value */
>         aty_st_8(CLOCK_CNTL_DATA, val & PLL_DATA, par);
>         aty_st_8(CLOCK_CNTL_ADDR, ((offset << 2) & PLL_ADDR) & ~PLL_WR_EN, par);
> 
> B2600 HPMCs in this code sequence, probably because the two accesses
> to CNTL_ADDR end up in just the last access. Placing in aty_ld_8 after
> the first aty_st_8 avoids the problem.

There are quite some comments in drivers/parisc/lba_pci.c regarding this.
Esp. the comment about "Directed" ranges at line 1258 might be interesting
regarding graphic cards.

Sadly I'm no expert in this area at all.

> In a B180 everything is fine,> so Dino doesn't do that. Next testbed is the C360, which shows the PCI
> resourec issue before it even comes to aty drvier.
> 
>> I think HP designed many of the PCI slots for special usage only,
>> e.g. some slots allow PCI graphic cards while others don't.
>>
>> Maybe plug your cards one-by-one into another slot and check again?
> 
> will do that, but what looks strange to me is the fact that ethernet and
> scsi also don't get all resources assigned. This happened without the VGA
> card plugged in, too.

Maybe the drivers of such NIC/SCSI cards don't request all available resources? 

Helge
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From - Thu Nov 08 21:40:07 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.hardened.devel,gmane.linux.ports.ia64
Subject: [PATCH] random: fix warning message on ia64 and parisc
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Fix the warning message on the parisc and IA64 architectures to show the
correct function name of the caller by using %pS instead of %pF. The
message is printed with the value of _RET_IP_ which calls
__builtin_return_address(0) and as such returns the IP address caller
instead of pointer to a function descriptor of the caller.

The effect of this patch is visible on the parisc and ia64 architectures
only since those are the ones which use function descriptors while on
all others %pS and %pF will behave the same.

Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: eecabf567422 ("random: suppress spammy warnings about unseeded randomness")
Fixes: d06bfd1989fe ("random: warn when kernel uses unseeded randomness")

diff --git a/drivers/char/random.c b/drivers/char/random.c
index afa3ce7..8ad9270 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1492,7 +1492,7 @@ static void _warn_unseeded_randomness(const char *func_name, void *caller,
 #ifndef CONFIG_WARN_ALL_UNSEEDED_RANDOM
 	print_once = true;
 #endif
-	pr_notice("random: %s called from %pF with crng_init=%d\n",
+	pr_notice("random: %s called from %pS with crng_init=%d\n",
 		  func_name, caller, crng_init);
 }
 
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From - Thu Nov 08 21:40:07 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: PCI resource problem on C360
Date: Tue, 8 Aug 2017 14:32:23 -0400
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To: Helge Deller <deller@gmx.de>,
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On 2017-08-08 11:48 AM, Helge Deller wrote:
>> I know, but the get a MACH64 card up to sync in a B2600, with a small
>> change in aty driver. And the change is because Astro/Elroy behave incorrect
>> in respect to PCI standards, IMHO. It looks like it colapses multiple PCI
>> mem accesses into one access.
> Yes, I think that's true.
>   
>>          aty_st_8(CLOCK_CNTL_ADDR, ((offset << 2) & PLL_ADDR) | PLL_WR_EN, par);
>>          /* write the register value */
>>          aty_st_8(CLOCK_CNTL_DATA, val & PLL_DATA, par);
>>          aty_st_8(CLOCK_CNTL_ADDR, ((offset << 2) & PLL_ADDR) & ~PLL_WR_EN, par);
>>
>> B2600 HPMCs in this code sequence, probably because the two accesses
>> to CNTL_ADDR end up in just the last access. Placing in aty_ld_8 after
>> the first aty_st_8 avoids the problem.
> There are quite some comments in drivers/parisc/lba_pci.c regarding this.
> Esp. the comment about "Directed" ranges at line 1258 might be interesting
> regarding graphic cards.

It says:

/************************************
  * LBA register read and write support
  *
  * BE WARNED: register writes are posted.
  *  (ie follow writes which must reach HW with a read)
  */

It seems that aty stores likely need a following read when writes are 
posted.  I would hack
drivers/video/fbdev/aty/aty128fb.c as a test.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc/random: Add machine specific randomness
Date: Thu, 10 Aug 2017 19:20:47 +0200
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Add some machine-specific information like values of cr16 cycle counter,
machine-specific software ID and machine model to the random generator.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 0ab3277..6b6fe8d 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -30,6 +30,7 @@
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/seq_file.h>
+#include <linux/random.h>
 #include <linux/slab.h>
 #include <linux/cpu.h>
 #include <asm/param.h>
@@ -237,28 +238,45 @@ static int processor_probe(struct parisc_device *dev)
  */
 void __init collect_boot_cpu_data(void)
 {
+	unsigned long cr16_seed;
+
 	memset(&boot_cpu_data, 0, sizeof(boot_cpu_data));
 
+	cr16_seed = get_cycles();
+	add_device_randomness(&cr16_seed, sizeof(cr16_seed));
+
 	boot_cpu_data.cpu_hz = 100 * PAGE0->mem_10msec; /* Hz of this PARISC */
 
 	/* get CPU-Model Information... */
 #define p ((unsigned long *)&boot_cpu_data.pdc.model)
-	if (pdc_model_info(&boot_cpu_data.pdc.model) == PDC_OK)
+	if (pdc_model_info(&boot_cpu_data.pdc.model) == PDC_OK) {
 		printk(KERN_INFO 
 			"model %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
 			p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8]);
+
+		add_device_randomness(&boot_cpu_data.pdc.model,
+			sizeof(boot_cpu_data.pdc.model));
+	}
 #undef p
 
-	if (pdc_model_versions(&boot_cpu_data.pdc.versions, 0) == PDC_OK)
+	if (pdc_model_versions(&boot_cpu_data.pdc.versions, 0) == PDC_OK) {
 		printk(KERN_INFO "vers  %08lx\n", 
 			boot_cpu_data.pdc.versions);
 
-	if (pdc_model_cpuid(&boot_cpu_data.pdc.cpuid) == PDC_OK)
+		add_device_randomness(&boot_cpu_data.pdc.versions,
+			sizeof(boot_cpu_data.pdc.versions));
+	}
+
+	if (pdc_model_cpuid(&boot_cpu_data.pdc.cpuid) == PDC_OK) {
 		printk(KERN_INFO "CPUID vers %ld rev %ld (0x%08lx)\n",
 			(boot_cpu_data.pdc.cpuid >> 5) & 127,
 			boot_cpu_data.pdc.cpuid & 31,
 			boot_cpu_data.pdc.cpuid);
 
+		add_device_randomness(&boot_cpu_data.pdc.cpuid,
+			sizeof(boot_cpu_data.pdc.cpuid));
+	}
+
 	if (pdc_model_capabilities(&boot_cpu_data.pdc.capabilities) == PDC_OK)
 		printk(KERN_INFO "capabilities 0x%lx\n",
 			boot_cpu_data.pdc.capabilities);
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Subject: [PATCH] printk-formats.txt: Add examples for %pS and %pF
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Sometimes people seems unclear when to use the %pS or %pF printk format.
Adding some examples may help to avoid such mistakes.

See for example commit 51d96dc2e2dc ("random: fix warning message on ia64 and
parisc") which fixed such a wrong format string.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 65ea591..be8c05b 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -73,6 +73,12 @@ actually function descriptors which must first be resolved. The ``F`` and
 ``f`` specifiers perform this resolution and then provide the same
 functionality as the ``S`` and ``s`` specifiers.
 
+Examples::
+
+	printk("Called from %pS.\n", __builtin_return_address(0));
+	printk("Called from %pS.\n", (void *)regs->ip);
+	printk("Called from %pF.\n", &gettimeofday);
+
 Kernel Pointers
 ===============
 


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On parisc I see this UBSAN warning with a sym53c896:

 UBSAN: Undefined behaviour in ./drivers/scsi/sym53c8xx_2/sym_hipd.c:762:24
 index -1903078336 is out of range for type 'u32 [7]'

Avoid this warning by switching to dev64_ul().

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
index 6b349e3..15ff285a9 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
@@ -759,7 +759,7 @@ static int sym_prepare_setting(struct Scsi_Host *shost, struct sym_hcb *np, stru
 	/*
 	 * Maximum synchronous period factor supported by the chip.
 	 */
-	period = (11 * div_10M[np->clock_divn - 1]) / (4 * np->clock_khz);
+	period = div64_ul(11 * div_10M[np->clock_divn - 1], 4 * np->clock_khz);
 	np->maxsync = period > 2540 ? 254 : period / 10;
 
 	/*


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Subject: Re: [PATCH] printk-formats.txt: Add examples for %pS and %pF
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On (08/10/17 19:35), Helge Deller wrote:
> Sometimes people seems unclear when to use the %pS or %pF printk format.
> Adding some examples may help to avoid such mistakes.
> 
> See for example commit 51d96dc2e2dc ("random: fix warning message on ia64 and
> parisc") which fixed such a wrong format string.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
> index 65ea591..be8c05b 100644
> --- a/Documentation/printk-formats.txt
> +++ b/Documentation/printk-formats.txt
> @@ -73,6 +73,12 @@ actually function descriptors which must first be resolved. The ``F`` and
>  ``f`` specifiers perform this resolution and then provide the same
>  functionality as the ``S`` and ``s`` specifiers.
>  
> +Examples::
> +
> +	printk("Called from %pS.\n", __builtin_return_address(0));
> +	printk("Called from %pS.\n", (void *)regs->ip);
> +	printk("Called from %pF.\n", &gettimeofday);

sorry, but how does it help?


there is this paragraph

: On ia64, ppc64 and parisc64 architectures function pointers are
: actually function descriptors which must first be resolved. The ``F`` and
: ``f`` specifiers perform this resolution and then provide the same
: functionality as the ``S`` and ``s`` specifiers.

which supposed to explain everything in details. the examples
don't make it any `clearer', IMHO.


*may be* on "ia64, ppc64 and parisc64" we can somehow check
that the pointer, which we pass as %pS, belongs to .text and
print some build-time warnings. well, if it's actually a
problem. dunno.

	-ss
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From - Thu Nov 08 21:40:07 2018
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Subject: Re: [PATCH] sym53c8xx: Avoid undefined behaviour in
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On Thu, Aug 10, 2017 at 09:08:49PM +0200, Helge Deller wrote:
> On parisc I see this UBSAN warning with a sym53c896:
> 
>  UBSAN: Undefined behaviour in ./drivers/scsi/sym53c8xx_2/sym_hipd.c:762:24
>  index -1903078336 is out of range for type 'u32 [7]'
> 
> Avoid this warning by switching to dev64_ul().
                            div64_ul() ^

Otherwise,
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>


-- 
Johannes Thumshirn                                          Storage
jthumshirn@suse.de                                +49 911 74053 689
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Subject: Re: [PATCH] printk-formats.txt: Add examples for %pS and %pF
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On 11.08.2017 02:15, Sergey Senozhatsky wrote:
> On (08/10/17 19:35), Helge Deller wrote:
>> Sometimes people seems unclear when to use the %pS or %pF printk format.
>> Adding some examples may help to avoid such mistakes.
>>
>> See for example commit 51d96dc2e2dc ("random: fix warning message on ia64 and
>> parisc") which fixed such a wrong format string.
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
>> index 65ea591..be8c05b 100644
>> --- a/Documentation/printk-formats.txt
>> +++ b/Documentation/printk-formats.txt
>> @@ -73,6 +73,12 @@ actually function descriptors which must first be resolved. The ``F`` and
>>  ``f`` specifiers perform this resolution and then provide the same
>>  functionality as the ``S`` and ``s`` specifiers.
>>  
>> +Examples::
>> +
>> +	printk("Called from %pS.\n", __builtin_return_address(0));
>> +	printk("Called from %pS.\n", (void *)regs->ip);
>> +	printk("Called from %pF.\n", &gettimeofday);
> 
> sorry, but how does it help?
> 
> 
> there is this paragraph
> 
> : On ia64, ppc64 and parisc64 architectures function pointers are
> : actually function descriptors which must first be resolved. The ``F`` and
> : ``f`` specifiers perform this resolution and then provide the same
> : functionality as the ``S`` and ``s`` specifiers.
> 
> which supposed to explain everything in details. the examples
> don't make it any `clearer', IMHO.

Experts surely do know what function descriptors are.
Nevertheless even those often get it wrong as can be seen in
various commits.

The hope with this patch is to show widely-used examples
and avoid additional commits afterwards to fix it up.

This patch was meant to be RFC.
If you decide not to take it, I'm fine as well.

> *may be* on "ia64, ppc64 and parisc64" we can somehow check
> that the pointer, which we pass as %pS, belongs to .text and
> print some build-time warnings. well, if it's actually a
> problem. dunno.

I think it's not needed. Those bugs will be seen and fixed.

Helge
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Subject: [PATCH 00/16] ALSA: PCI: constify snd_pcm_hardware const
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Declare snd_pcm_hardware const. 
Done using Coccinelle.

Bhumika Goyal (16):
  ALSA: aw2: make snd_pcm_hardware const
  ALSA: ca0106: make snd_pcm_hardware const
  ALSA: cs46xx: make snd_pcm_hardware const
  ALSA: korg1212: make snd_pcm_hardware const
  ALSA: cs5535audio: make snd_pcm_hardware const
  ALSA: emu10k1: make snd_pcm_hardware const
  ALSA: lola: make snd_pcm_hardware const
  ALSA: lx6464es: make snd_pcm_hardware const
  ALSA: mixart: make snd_pcm_hardware const
  ALSA: ctxfi: make snd_pcm_hardware const
  ALSA: pcxhr: make snd_pcm_hardware const
  ALSA: riptide: make snd_pcm_hardware const
  ALSA: rme9652: make snd_pcm_hardware const
  ALSA: trident: make snd_pcm_hardware const
  ALSA: ymfpci: make snd_pcm_hardware const
  ALSA: pci: make snd_pcm_hardware const

 sound/pci/ad1889.c                      |  4 ++--
 sound/pci/als300.c                      |  4 ++--
 sound/pci/als4000.c                     |  4 ++--
 sound/pci/atiixp.c                      |  2 +-
 sound/pci/atiixp_modem.c                |  2 +-
 sound/pci/aw2/aw2-alsa.c                |  4 ++--
 sound/pci/bt87x.c                       |  4 ++--
 sound/pci/ca0106/ca0106_main.c          |  4 ++--
 sound/pci/cmipci.c                      | 12 ++++++------
 sound/pci/cs4281.c                      |  4 ++--
 sound/pci/cs46xx/cs46xx_lib.c           |  4 ++--
 sound/pci/cs5535audio/cs5535audio_pcm.c |  4 ++--
 sound/pci/ctxfi/ctpcm.c                 |  6 +++---
 sound/pci/emu10k1/emu10k1x.c            |  4 ++--
 sound/pci/emu10k1/emupcm.c              | 10 +++++-----
 sound/pci/emu10k1/p16v.c                |  4 ++--
 sound/pci/ens1370.c                     |  6 +++---
 sound/pci/es1938.c                      |  4 ++--
 sound/pci/es1968.c                      |  4 ++--
 sound/pci/fm801.c                       |  4 ++--
 sound/pci/intel8x0.c                    |  2 +-
 sound/pci/intel8x0m.c                   |  2 +-
 sound/pci/korg1212/korg1212.c           |  4 ++--
 sound/pci/lola/lola_pcm.c               |  2 +-
 sound/pci/lx6464es/lx6464es.c           |  2 +-
 sound/pci/maestro3.c                    |  4 ++--
 sound/pci/mixart/mixart.c               |  4 ++--
 sound/pci/pcxhr/pcxhr.c                 |  2 +-
 sound/pci/riptide/riptide.c             |  4 ++--
 sound/pci/rme32.c                       |  8 ++++----
 sound/pci/rme96.c                       |  8 ++++----
 sound/pci/rme9652/hdsp.c                |  4 ++--
 sound/pci/rme9652/rme9652.c             |  4 ++--
 sound/pci/sis7019.c                     |  4 ++--
 sound/pci/sonicvibes.c                  |  4 ++--
 sound/pci/trident/trident_main.c        | 10 +++++-----
 sound/pci/via82xx.c                     |  2 +-
 sound/pci/via82xx_modem.c               |  2 +-
 sound/pci/ymfpci/ymfpci_main.c          |  4 ++--
 39 files changed, 85 insertions(+), 85 deletions(-)

-- 
1.9.1

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Subject: [PATCH 01/16] ALSA: aw2: make snd_pcm_hardware const
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        tiwai@suse.com, clemens@ladisch.de, jayakumar.alsa@gmail.com,
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Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/aw2/aw2-alsa.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/aw2/aw2-alsa.c b/sound/pci/aw2/aw2-alsa.c
index 8356180..9a49e42 100644
--- a/sound/pci/aw2/aw2-alsa.c
+++ b/sound/pci/aw2/aw2-alsa.c
@@ -52,7 +52,7 @@
  * TYPEDEFS
  ********************************/
   /* hardware definition */
-static struct snd_pcm_hardware snd_aw2_playback_hw = {
+static const struct snd_pcm_hardware snd_aw2_playback_hw = {
 	.info = (SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_INTERLEAVED |
 		 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
@@ -69,7 +69,7 @@
 	.periods_max = 1024,
 };
 
-static struct snd_pcm_hardware snd_aw2_capture_hw = {
+static const struct snd_pcm_hardware snd_aw2_capture_hw = {
 	.info = (SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_INTERLEAVED |
 		 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
-- 
1.9.1



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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2547306>

Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/ca0106/ca0106_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c
index 6165a57..2be30b8 100644
--- a/sound/pci/ca0106/ca0106_main.c
+++ b/sound/pci/ca0106/ca0106_main.c
@@ -296,7 +296,7 @@
 };
 
 /* hardware definition */
-static struct snd_pcm_hardware snd_ca0106_playback_hw = {
+static const struct snd_pcm_hardware snd_ca0106_playback_hw = {
 	.info =			SNDRV_PCM_INFO_MMAP | 
 				SNDRV_PCM_INFO_INTERLEAVED |
 				SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -317,7 +317,7 @@
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_ca0106_capture_hw = {
+static const struct snd_pcm_hardware snd_ca0106_capture_hw = {
 	.info =			(SNDRV_PCM_INFO_MMAP | 
 				 SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
-- 
1.9.1



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From: Bhumika Goyal <bhumirks@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 03/16] ALSA: cs46xx: make snd_pcm_hardware const
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Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/cs46xx/cs46xx_lib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c
index 709fb1a..0020fd0 100644
--- a/sound/pci/cs46xx/cs46xx_lib.c
+++ b/sound/pci/cs46xx/cs46xx_lib.c
@@ -1438,7 +1438,7 @@ static irqreturn_t snd_cs46xx_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static struct snd_pcm_hardware snd_cs46xx_playback =
+static const struct snd_pcm_hardware snd_cs46xx_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_INTERLEAVED | 
@@ -1460,7 +1460,7 @@ static irqreturn_t snd_cs46xx_interrupt(int irq, void *dev_id)
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_cs46xx_capture =
+static const struct snd_pcm_hardware snd_cs46xx_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_INTERLEAVED |
-- 
1.9.1



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From: Bhumika Goyal <bhumirks@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 04/16] ALSA: korg1212: make snd_pcm_hardware const
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Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/korg1212/korg1212.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c
index b28fe49..04cd71c 100644
--- a/sound/pci/korg1212/korg1212.c
+++ b/sound/pci/korg1212/korg1212.c
@@ -1231,7 +1231,7 @@ static int snd_korg1212_downloadDSPCode(struct snd_korg1212 *korg1212)
         return 0;
 }
 
-static struct snd_pcm_hardware snd_korg1212_playback_info =
+static const struct snd_pcm_hardware snd_korg1212_playback_info =
 {
 	.info =              (SNDRV_PCM_INFO_MMAP |
                               SNDRV_PCM_INFO_MMAP_VALID |
@@ -1252,7 +1252,7 @@ static int snd_korg1212_downloadDSPCode(struct snd_korg1212 *korg1212)
         .fifo_size =          0,
 };
 
-static struct snd_pcm_hardware snd_korg1212_capture_info =
+static const struct snd_pcm_hardware snd_korg1212_capture_info =
 {
         .info =              (SNDRV_PCM_INFO_MMAP |
                               SNDRV_PCM_INFO_MMAP_VALID |
-- 
1.9.1



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From: Bhumika Goyal <bhumirks@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 05/16] ALSA: cs5535audio: make snd_pcm_hardware const
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Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/cs5535audio/cs5535audio_pcm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/cs5535audio/cs5535audio_pcm.c b/sound/pci/cs5535audio/cs5535audio_pcm.c
index c208c1d..ee7065f 100644
--- a/sound/pci/cs5535audio/cs5535audio_pcm.c
+++ b/sound/pci/cs5535audio/cs5535audio_pcm.c
@@ -33,7 +33,7 @@
 #include <sound/ac97_codec.h>
 #include "cs5535audio.h"
 
-static struct snd_pcm_hardware snd_cs5535audio_playback =
+static const struct snd_pcm_hardware snd_cs5535audio_playback =
 {
 	.info =			(
 				SNDRV_PCM_INFO_MMAP |
@@ -62,7 +62,7 @@
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_cs5535audio_capture =
+static const struct snd_pcm_hardware snd_cs5535audio_capture =
 {
 	.info =			(
 				SNDRV_PCM_INFO_MMAP |
-- 
1.9.1



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Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/emu10k1/emu10k1x.c |  4 ++--
 sound/pci/emu10k1/emupcm.c   | 10 +++++-----
 sound/pci/emu10k1/p16v.c     |  4 ++--
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c
index 77a4413..2c2b12a 100644
--- a/sound/pci/emu10k1/emu10k1x.c
+++ b/sound/pci/emu10k1/emu10k1x.c
@@ -254,7 +254,7 @@ struct emu10k1x {
 };
 
 /* hardware definition */
-static struct snd_pcm_hardware snd_emu10k1x_playback_hw = {
+static const struct snd_pcm_hardware snd_emu10k1x_playback_hw = {
 	.info =			(SNDRV_PCM_INFO_MMAP | 
 				 SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -273,7 +273,7 @@ struct emu10k1x {
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_emu10k1x_capture_hw = {
+static const struct snd_pcm_hardware snd_emu10k1x_capture_hw = {
 	.info =			(SNDRV_PCM_INFO_MMAP | 
 				 SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c
index 5c9054a..2683b97 100644
--- a/sound/pci/emu10k1/emupcm.c
+++ b/sound/pci/emu10k1/emupcm.c
@@ -556,7 +556,7 @@ static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream)
 	return 0;
 }
 
-static struct snd_pcm_hardware snd_emu10k1_efx_playback =
+static const struct snd_pcm_hardware snd_emu10k1_efx_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_NONINTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -975,7 +975,7 @@ static snd_pcm_uframes_t snd_emu10k1_capture_pointer(struct snd_pcm_substream *s
  *  Playback support device description
  */
 
-static struct snd_pcm_hardware snd_emu10k1_playback =
+static const struct snd_pcm_hardware snd_emu10k1_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -999,7 +999,7 @@ static snd_pcm_uframes_t snd_emu10k1_capture_pointer(struct snd_pcm_substream *s
  *  Capture support device description
  */
 
-static struct snd_pcm_hardware snd_emu10k1_capture =
+static const struct snd_pcm_hardware snd_emu10k1_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -1019,7 +1019,7 @@ static snd_pcm_uframes_t snd_emu10k1_capture_pointer(struct snd_pcm_substream *s
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_emu10k1_capture_efx =
+static const struct snd_pcm_hardware snd_emu10k1_capture_efx =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -1742,7 +1742,7 @@ static snd_pcm_uframes_t snd_emu10k1_fx8010_playback_pointer(struct snd_pcm_subs
 	return snd_pcm_indirect_playback_pointer(substream, &pcm->pcm_rec, ptr);
 }
 
-static struct snd_pcm_hardware snd_emu10k1_fx8010_playback =
+static const struct snd_pcm_hardware snd_emu10k1_fx8010_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_RESUME |
diff --git a/sound/pci/emu10k1/p16v.c b/sound/pci/emu10k1/p16v.c
index c11f1a2..a30da78 100644
--- a/sound/pci/emu10k1/p16v.c
+++ b/sound/pci/emu10k1/p16v.c
@@ -122,7 +122,7 @@
  */
 
  /* hardware definition */
-static struct snd_pcm_hardware snd_p16v_playback_hw = {
+static const struct snd_pcm_hardware snd_p16v_playback_hw = {
 	.info =			SNDRV_PCM_INFO_MMAP | 
 				SNDRV_PCM_INFO_INTERLEAVED |
 				SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -143,7 +143,7 @@
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_p16v_capture_hw = {
+static const struct snd_pcm_hardware snd_p16v_capture_hw = {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
-- 
1.9.1

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Make this const as it is only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/lola/lola_pcm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/lola/lola_pcm.c b/sound/pci/lola/lola_pcm.c
index 1268ba3..310b26a 100644
--- a/sound/pci/lola/lola_pcm.c
+++ b/sound/pci/lola/lola_pcm.c
@@ -197,7 +197,7 @@ static void lola_stream_reset(struct lola *chip, struct lola_stream *str)
 	}
 }
 
-static struct snd_pcm_hardware lola_pcm_hw = {
+static const struct snd_pcm_hardware lola_pcm_hw = {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
-- 
1.9.1



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Make this const as it is only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/lx6464es/lx6464es.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/lx6464es/lx6464es.c b/sound/pci/lx6464es/lx6464es.c
index f9c3e86..9655b08 100644
--- a/sound/pci/lx6464es/lx6464es.c
+++ b/sound/pci/lx6464es/lx6464es.c
@@ -77,7 +77,7 @@
 
 
 /* alsa callbacks */
-static struct snd_pcm_hardware lx_caps = {
+static const struct snd_pcm_hardware lx_caps = {
 	.info             = (SNDRV_PCM_INFO_MMAP |
 			     SNDRV_PCM_INFO_INTERLEAVED |
 			     SNDRV_PCM_INFO_MMAP_VALID |
-- 
1.9.1



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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 09/16] ALSA: mixart: make snd_pcm_hardware const
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Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/mixart/mixart.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c
index 6d7fbf3..aca3b34 100644
--- a/sound/pci/mixart/mixart.c
+++ b/sound/pci/mixart/mixart.c
@@ -675,7 +675,7 @@ static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
 /*
  *  TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
  */
-static struct snd_pcm_hardware snd_mixart_analog_caps =
+static const struct snd_pcm_hardware snd_mixart_analog_caps =
 {
 	.info             = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 			      SNDRV_PCM_INFO_MMAP_VALID |
@@ -696,7 +696,7 @@ static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
 	.periods_max      = (32*1024/256),
 };
 
-static struct snd_pcm_hardware snd_mixart_digital_caps =
+static const struct snd_pcm_hardware snd_mixart_digital_caps =
 {
 	.info             = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 			      SNDRV_PCM_INFO_MMAP_VALID |
-- 
1.9.1



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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 10/16] ALSA: ctxfi: make snd_pcm_hardware const
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Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/ctxfi/ctpcm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/pci/ctxfi/ctpcm.c b/sound/pci/ctxfi/ctpcm.c
index 9749780..358f520 100644
--- a/sound/pci/ctxfi/ctpcm.c
+++ b/sound/pci/ctxfi/ctpcm.c
@@ -21,7 +21,7 @@
 #include <sound/pcm.h>
 
 /* Hardware descriptions for playback */
-static struct snd_pcm_hardware ct_pcm_playback_hw = {
+static const struct snd_pcm_hardware ct_pcm_playback_hw = {
 	.info			= (SNDRV_PCM_INFO_MMAP |
 				   SNDRV_PCM_INFO_INTERLEAVED |
 				   SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -46,7 +46,7 @@
 	.fifo_size		= 0,
 };
 
-static struct snd_pcm_hardware ct_spdif_passthru_playback_hw = {
+static const struct snd_pcm_hardware ct_spdif_passthru_playback_hw = {
 	.info			= (SNDRV_PCM_INFO_MMAP |
 				   SNDRV_PCM_INFO_INTERLEAVED |
 				   SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -69,7 +69,7 @@
 };
 
 /* Hardware descriptions for capture */
-static struct snd_pcm_hardware ct_pcm_capture_hw = {
+static const struct snd_pcm_hardware ct_pcm_capture_hw = {
 	.info			= (SNDRV_PCM_INFO_MMAP |
 				   SNDRV_PCM_INFO_INTERLEAVED |
 				   SNDRV_PCM_INFO_BLOCK_TRANSFER |
-- 
1.9.1



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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
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Make this const as it is only used during a copy operation.
Done using Coccinelle

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/pcxhr/pcxhr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/pcxhr/pcxhr.c b/sound/pci/pcxhr/pcxhr.c
index fa919f5..e6f9aa6 100644
--- a/sound/pci/pcxhr/pcxhr.c
+++ b/sound/pci/pcxhr/pcxhr.c
@@ -986,7 +986,7 @@ static int pcxhr_hw_free(struct snd_pcm_substream *subs)
 /*
  *  CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
  */
-static struct snd_pcm_hardware pcxhr_caps =
+static const struct snd_pcm_hardware pcxhr_caps =
 {
 	.info             = (SNDRV_PCM_INFO_MMAP |
 			     SNDRV_PCM_INFO_INTERLEAVED |
-- 
1.9.1



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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 12/16] ALSA: riptide: make snd_pcm_hardware const
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Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/riptide/riptide.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/riptide/riptide.c b/sound/pci/riptide/riptide.c
index f067c76..44f3b48 100644
--- a/sound/pci/riptide/riptide.c
+++ b/sound/pci/riptide/riptide.c
@@ -1315,7 +1315,7 @@ static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip)
 	return 0;
 }
 
-static struct snd_pcm_hardware snd_riptide_playback = {
+static const struct snd_pcm_hardware snd_riptide_playback = {
 	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
@@ -1334,7 +1334,7 @@ static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip)
 	.periods_max = 64,
 	.fifo_size = 0,
 };
-static struct snd_pcm_hardware snd_riptide_capture = {
+static const struct snd_pcm_hardware snd_riptide_capture = {
 	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
-- 
1.9.1



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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 13/16] ALSA: rme9652: make snd_pcm_hardware const
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Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/rme9652/hdsp.c    | 4 ++--
 sound/pci/rme9652/rme9652.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index fe36d44..9535e6a 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -4211,7 +4211,7 @@ static int snd_hdsp_prepare(struct snd_pcm_substream *substream)
 	return result;
 }
 
-static struct snd_pcm_hardware snd_hdsp_playback_subinfo =
+static const struct snd_pcm_hardware snd_hdsp_playback_subinfo =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_MMAP_VALID |
@@ -4241,7 +4241,7 @@ static int snd_hdsp_prepare(struct snd_pcm_substream *substream)
 	.fifo_size =		0
 };
 
-static struct snd_pcm_hardware snd_hdsp_capture_subinfo =
+static const struct snd_pcm_hardware snd_hdsp_capture_subinfo =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_MMAP_VALID |
diff --git a/sound/pci/rme9652/rme9652.c b/sound/pci/rme9652/rme9652.c
index 150d088..eff4993 100644
--- a/sound/pci/rme9652/rme9652.c
+++ b/sound/pci/rme9652/rme9652.c
@@ -2181,7 +2181,7 @@ static int snd_rme9652_prepare(struct snd_pcm_substream *substream)
 	return result;
 }
 
-static struct snd_pcm_hardware snd_rme9652_playback_subinfo =
+static const struct snd_pcm_hardware snd_rme9652_playback_subinfo =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_MMAP_VALID |
@@ -2205,7 +2205,7 @@ static int snd_rme9652_prepare(struct snd_pcm_substream *substream)
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_rme9652_capture_subinfo =
+static const struct snd_pcm_hardware snd_rme9652_capture_subinfo =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_MMAP_VALID |
-- 
1.9.1



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X-Mozilla-Keys:                                                                                 
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From: Bhumika Goyal <bhumirks@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
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Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/ymfpci/ymfpci_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index 1114166..edfd5824 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -845,7 +845,7 @@ static irqreturn_t snd_ymfpci_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static struct snd_pcm_hardware snd_ymfpci_playback =
+static const struct snd_pcm_hardware snd_ymfpci_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_MMAP_VALID | 
@@ -867,7 +867,7 @@ static irqreturn_t snd_ymfpci_interrupt(int irq, void *dev_id)
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_ymfpci_capture =
+static const struct snd_pcm_hardware snd_ymfpci_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_MMAP_VALID |
-- 
1.9.1



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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 14/16] ALSA: trident: make snd_pcm_hardware const
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Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/trident/trident_main.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/sound/pci/trident/trident_main.c b/sound/pci/trident/trident_main.c
index 4561040..191047a 100644
--- a/sound/pci/trident/trident_main.c
+++ b/sound/pci/trident/trident_main.c
@@ -1727,7 +1727,7 @@ static snd_pcm_uframes_t snd_trident_spdif_pointer(struct snd_pcm_substream *sub
  *  Playback support device description
  */
 
-static struct snd_pcm_hardware snd_trident_playback =
+static const struct snd_pcm_hardware snd_trident_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -1752,7 +1752,7 @@ static snd_pcm_uframes_t snd_trident_spdif_pointer(struct snd_pcm_substream *sub
  *  Capture support device description
  */
 
-static struct snd_pcm_hardware snd_trident_capture =
+static const struct snd_pcm_hardware snd_trident_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -1777,7 +1777,7 @@ static snd_pcm_uframes_t snd_trident_spdif_pointer(struct snd_pcm_substream *sub
  *  Foldback capture support device description
  */
 
-static struct snd_pcm_hardware snd_trident_foldback =
+static const struct snd_pcm_hardware snd_trident_foldback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -1801,7 +1801,7 @@ static snd_pcm_uframes_t snd_trident_spdif_pointer(struct snd_pcm_substream *sub
  *  SPDIF playback support device description
  */
 
-static struct snd_pcm_hardware snd_trident_spdif =
+static const struct snd_pcm_hardware snd_trident_spdif =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -1822,7 +1822,7 @@ static snd_pcm_uframes_t snd_trident_spdif_pointer(struct snd_pcm_substream *sub
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_trident_spdif_7018 =
+static const struct snd_pcm_hardware snd_trident_spdif_7018 =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
-- 
1.9.1



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From: Bhumika Goyal <bhumirks@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 16/16] ALSA: pci: make snd_pcm_hardware const
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Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/ad1889.c        |  4 ++--
 sound/pci/als300.c        |  4 ++--
 sound/pci/als4000.c       |  4 ++--
 sound/pci/atiixp.c        |  2 +-
 sound/pci/atiixp_modem.c  |  2 +-
 sound/pci/bt87x.c         |  4 ++--
 sound/pci/cmipci.c        | 12 ++++++------
 sound/pci/cs4281.c        |  4 ++--
 sound/pci/ens1370.c       |  6 +++---
 sound/pci/es1938.c        |  4 ++--
 sound/pci/es1968.c        |  4 ++--
 sound/pci/fm801.c         |  4 ++--
 sound/pci/intel8x0.c      |  2 +-
 sound/pci/intel8x0m.c     |  2 +-
 sound/pci/maestro3.c      |  4 ++--
 sound/pci/rme32.c         |  8 ++++----
 sound/pci/rme96.c         |  8 ++++----
 sound/pci/sis7019.c       |  4 ++--
 sound/pci/sonicvibes.c    |  4 ++--
 sound/pci/via82xx.c       |  2 +-
 sound/pci/via82xx_modem.c |  2 +-
 21 files changed, 45 insertions(+), 45 deletions(-)

diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index 8c36990..0bf2c04 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -283,7 +283,7 @@ struct snd_ad1889 {
 	return snd_pcm_lib_free_pages(substream);
 }
 
-static struct snd_pcm_hardware snd_ad1889_playback_hw = {
+static const struct snd_pcm_hardware snd_ad1889_playback_hw = {
 	.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 		SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BLOCK_TRANSFER,
 	.formats = SNDRV_PCM_FMTBIT_S16_LE,
@@ -300,7 +300,7 @@ struct snd_ad1889 {
 	/*.fifo_size = 0,*/
 };
 
-static struct snd_pcm_hardware snd_ad1889_capture_hw = {
+static const struct snd_pcm_hardware snd_ad1889_capture_hw = {
 	.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 		SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BLOCK_TRANSFER,
 	.formats = SNDRV_PCM_FMTBIT_S16_LE,
diff --git a/sound/pci/als300.c b/sound/pci/als300.c
index ab75601..eaa2d85 100644
--- a/sound/pci/als300.c
+++ b/sound/pci/als300.c
@@ -328,7 +328,7 @@ static int snd_als300_ac97(struct snd_als300 *chip)
  * the card when it is running outside of legacy
  * mode.
  */
-static struct snd_pcm_hardware snd_als300_playback_hw =
+static const struct snd_pcm_hardware snd_als300_playback_hw =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				SNDRV_PCM_INFO_INTERLEAVED |
@@ -347,7 +347,7 @@ static int snd_als300_ac97(struct snd_als300 *chip)
 	.periods_max =		2,
 };
 
-static struct snd_pcm_hardware snd_als300_capture_hw =
+static const struct snd_pcm_hardware snd_als300_capture_hw =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				SNDRV_PCM_INFO_INTERLEAVED |
diff --git a/sound/pci/als4000.c b/sound/pci/als4000.c
index 7844a75..26b097e 100644
--- a/sound/pci/als4000.c
+++ b/sound/pci/als4000.c
@@ -592,7 +592,7 @@ static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id)
 
 /*****************************************************************/
 
-static struct snd_pcm_hardware snd_als4000_playback =
+static const struct snd_pcm_hardware snd_als4000_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID),
@@ -611,7 +611,7 @@ static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id)
 	.fifo_size =		0
 };
 
-static struct snd_pcm_hardware snd_als4000_capture =
+static const struct snd_pcm_hardware snd_als4000_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID),
diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index a40c918..de53c2a 100644
--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -1009,7 +1009,7 @@ static int snd_atiixp_pcm_hw_free(struct snd_pcm_substream *substream)
 /*
  * pcm hardware definition, identical for all DMA types
  */
-static struct snd_pcm_hardware snd_atiixp_pcm_hw =
+static const struct snd_pcm_hardware snd_atiixp_pcm_hw =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c
index 52e0ea7..a586635 100644
--- a/sound/pci/atiixp_modem.c
+++ b/sound/pci/atiixp_modem.c
@@ -834,7 +834,7 @@ static int snd_atiixp_pcm_hw_free(struct snd_pcm_substream *substream)
 /*
  * pcm hardware definition, identical for all DMA types
  */
-static struct snd_pcm_hardware snd_atiixp_pcm_hw =
+static const struct snd_pcm_hardware snd_atiixp_pcm_hw =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index de02342..d8ade87 100644
--- a/sound/pci/bt87x.c
+++ b/sound/pci/bt87x.c
@@ -353,7 +353,7 @@ static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static struct snd_pcm_hardware snd_bt87x_digital_hw = {
+static const struct snd_pcm_hardware snd_bt87x_digital_hw = {
 	.info = SNDRV_PCM_INFO_MMAP |
 		SNDRV_PCM_INFO_INTERLEAVED |
 		SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -370,7 +370,7 @@ static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)
 	.periods_max = 255,
 };
 
-static struct snd_pcm_hardware snd_bt87x_analog_hw = {
+static const struct snd_pcm_hardware snd_bt87x_analog_hw = {
 	.info = SNDRV_PCM_INFO_MMAP |
 		SNDRV_PCM_INFO_INTERLEAVED |
 		SNDRV_PCM_INFO_BLOCK_TRANSFER |
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c
index a460cb6..a45245f 100644
--- a/sound/pci/cmipci.c
+++ b/sound/pci/cmipci.c
@@ -1477,7 +1477,7 @@ static irqreturn_t snd_cmipci_interrupt(int irq, void *dev_id)
  */
 
 /* playback on channel A */
-static struct snd_pcm_hardware snd_cmipci_playback =
+static const struct snd_pcm_hardware snd_cmipci_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
@@ -1497,7 +1497,7 @@ static irqreturn_t snd_cmipci_interrupt(int irq, void *dev_id)
 };
 
 /* capture on channel B */
-static struct snd_pcm_hardware snd_cmipci_capture =
+static const struct snd_pcm_hardware snd_cmipci_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
@@ -1517,7 +1517,7 @@ static irqreturn_t snd_cmipci_interrupt(int irq, void *dev_id)
 };
 
 /* playback on channel B - stereo 16bit only? */
-static struct snd_pcm_hardware snd_cmipci_playback2 =
+static const struct snd_pcm_hardware snd_cmipci_playback2 =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
@@ -1537,7 +1537,7 @@ static irqreturn_t snd_cmipci_interrupt(int irq, void *dev_id)
 };
 
 /* spdif playback on channel A */
-static struct snd_pcm_hardware snd_cmipci_playback_spdif =
+static const struct snd_pcm_hardware snd_cmipci_playback_spdif =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
@@ -1557,7 +1557,7 @@ static irqreturn_t snd_cmipci_interrupt(int irq, void *dev_id)
 };
 
 /* spdif playback on channel A (32bit, IEC958 subframes) */
-static struct snd_pcm_hardware snd_cmipci_playback_iec958_subframe =
+static const struct snd_pcm_hardware snd_cmipci_playback_iec958_subframe =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
@@ -1577,7 +1577,7 @@ static irqreturn_t snd_cmipci_interrupt(int irq, void *dev_id)
 };
 
 /* spdif capture on channel B */
-static struct snd_pcm_hardware snd_cmipci_capture_spdif =
+static const struct snd_pcm_hardware snd_cmipci_capture_spdif =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_PAUSE |
diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index ee7ba4b..ec42476 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -847,7 +847,7 @@ static snd_pcm_uframes_t snd_cs4281_pointer(struct snd_pcm_substream *substream)
 	       snd_cs4281_peekBA0(chip, dma->regDCC) - 1;
 }
 
-static struct snd_pcm_hardware snd_cs4281_playback =
+static const struct snd_pcm_hardware snd_cs4281_playback =
 {
 	.info =			SNDRV_PCM_INFO_MMAP |
 				SNDRV_PCM_INFO_INTERLEAVED |
@@ -872,7 +872,7 @@ static snd_pcm_uframes_t snd_cs4281_pointer(struct snd_pcm_substream *substream)
 	.fifo_size =		CS4281_FIFO_SIZE,
 };
 
-static struct snd_pcm_hardware snd_cs4281_capture =
+static const struct snd_pcm_hardware snd_cs4281_capture =
 {
 	.info =			SNDRV_PCM_INFO_MMAP |
 				SNDRV_PCM_INFO_INTERLEAVED |
diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c
index f0d978e..d4cd645 100644
--- a/sound/pci/ens1370.c
+++ b/sound/pci/ens1370.c
@@ -1059,7 +1059,7 @@ static snd_pcm_uframes_t snd_ensoniq_capture_pointer(struct snd_pcm_substream *s
 	return ptr;
 }
 
-static struct snd_pcm_hardware snd_ensoniq_playback1 =
+static const struct snd_pcm_hardware snd_ensoniq_playback1 =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -1086,7 +1086,7 @@ static snd_pcm_uframes_t snd_ensoniq_capture_pointer(struct snd_pcm_substream *s
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_ensoniq_playback2 =
+static const struct snd_pcm_hardware snd_ensoniq_playback2 =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -1106,7 +1106,7 @@ static snd_pcm_uframes_t snd_ensoniq_capture_pointer(struct snd_pcm_substream *s
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_ensoniq_capture =
+static const struct snd_pcm_hardware snd_ensoniq_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c
index 069902a..9d248eb 100644
--- a/sound/pci/es1938.c
+++ b/sound/pci/es1938.c
@@ -900,7 +900,7 @@ static int snd_es1938_pcm_hw_free(struct snd_pcm_substream *substream)
 /* ----------------------------------------------------------------------
  * Audio1 Capture (ADC)
  * ----------------------------------------------------------------------*/
-static struct snd_pcm_hardware snd_es1938_capture =
+static const struct snd_pcm_hardware snd_es1938_capture =
 {
 	.info =			(SNDRV_PCM_INFO_INTERLEAVED |
 				SNDRV_PCM_INFO_BLOCK_TRANSFER),
@@ -922,7 +922,7 @@ static int snd_es1938_pcm_hw_free(struct snd_pcm_substream *substream)
 /* -----------------------------------------------------------------------
  * Audio2 Playback (DAC)
  * -----------------------------------------------------------------------*/
-static struct snd_pcm_hardware snd_es1938_playback =
+static const struct snd_pcm_hardware snd_es1938_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c
index 2ec2b1c..0b1845c 100644
--- a/sound/pci/es1968.c
+++ b/sound/pci/es1968.c
@@ -1290,7 +1290,7 @@ static snd_pcm_uframes_t snd_es1968_pcm_pointer(struct snd_pcm_substream *substr
 	return bytes_to_frames(substream->runtime, ptr % es->dma_size);
 }
 
-static struct snd_pcm_hardware snd_es1968_playback = {
+static const struct snd_pcm_hardware snd_es1968_playback = {
 	.info =			(SNDRV_PCM_INFO_MMAP |
                		         SNDRV_PCM_INFO_MMAP_VALID |
 				 SNDRV_PCM_INFO_INTERLEAVED |
@@ -1311,7 +1311,7 @@ static snd_pcm_uframes_t snd_es1968_pcm_pointer(struct snd_pcm_substream *substr
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_es1968_capture = {
+static const struct snd_pcm_hardware snd_es1968_capture = {
 	.info =			(SNDRV_PCM_INFO_NONINTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_MMAP_VALID |
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index 8e6b04b..73a67bc 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -599,7 +599,7 @@ static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static struct snd_pcm_hardware snd_fm801_playback =
+static const struct snd_pcm_hardware snd_fm801_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -619,7 +619,7 @@ static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_fm801_capture =
+static const struct snd_pcm_hardware snd_fm801_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index fcd032e..851ccff 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -1115,7 +1115,7 @@ static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *subs
 	return bytes_to_frames(substream->runtime, ptr);
 }
 
-static struct snd_pcm_hardware snd_intel8x0_stream =
+static const struct snd_pcm_hardware snd_intel8x0_stream =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
diff --git a/sound/pci/intel8x0m.c b/sound/pci/intel8x0m.c
index 2f1b878..3a4769a 100644
--- a/sound/pci/intel8x0m.c
+++ b/sound/pci/intel8x0m.c
@@ -611,7 +611,7 @@ static int snd_intel8x0m_pcm_prepare(struct snd_pcm_substream *substream)
 	return 0;
 }
 
-static struct snd_pcm_hardware snd_intel8x0m_stream =
+static const struct snd_pcm_hardware snd_intel8x0m_stream =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c
index cafea6d..97ac80a 100644
--- a/sound/pci/maestro3.c
+++ b/sound/pci/maestro3.c
@@ -1681,7 +1681,7 @@ static irqreturn_t snd_m3_interrupt(int irq, void *dev_id)
 /*
  */
 
-static struct snd_pcm_hardware snd_m3_playback =
+static const struct snd_pcm_hardware snd_m3_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_INTERLEAVED |
@@ -1702,7 +1702,7 @@ static irqreturn_t snd_m3_interrupt(int irq, void *dev_id)
 	.periods_max =		1024,
 };
 
-static struct snd_pcm_hardware snd_m3_capture =
+static const struct snd_pcm_hardware snd_m3_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_INTERLEAVED |
diff --git a/sound/pci/rme32.c b/sound/pci/rme32.c
index e4cdef9..f0906ba 100644
--- a/sound/pci/rme32.c
+++ b/sound/pci/rme32.c
@@ -314,7 +314,7 @@ static int snd_rme32_capture_copy_kernel(struct snd_pcm_substream *substream,
 /*
  * SPDIF I/O capabilities (half-duplex mode)
  */
-static struct snd_pcm_hardware snd_rme32_spdif_info = {
+static const struct snd_pcm_hardware snd_rme32_spdif_info = {
 	.info =		(SNDRV_PCM_INFO_MMAP_IOMEM |
 			 SNDRV_PCM_INFO_MMAP_VALID |
 			 SNDRV_PCM_INFO_INTERLEAVED | 
@@ -340,7 +340,7 @@ static int snd_rme32_capture_copy_kernel(struct snd_pcm_substream *substream,
 /*
  * ADAT I/O capabilities (half-duplex mode)
  */
-static struct snd_pcm_hardware snd_rme32_adat_info =
+static const struct snd_pcm_hardware snd_rme32_adat_info =
 {
 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
 			      SNDRV_PCM_INFO_MMAP_VALID |
@@ -365,7 +365,7 @@ static int snd_rme32_capture_copy_kernel(struct snd_pcm_substream *substream,
 /*
  * SPDIF I/O capabilities (full-duplex mode)
  */
-static struct snd_pcm_hardware snd_rme32_spdif_fd_info = {
+static const struct snd_pcm_hardware snd_rme32_spdif_fd_info = {
 	.info =		(SNDRV_PCM_INFO_MMAP |
 			 SNDRV_PCM_INFO_MMAP_VALID |
 			 SNDRV_PCM_INFO_INTERLEAVED | 
@@ -391,7 +391,7 @@ static int snd_rme32_capture_copy_kernel(struct snd_pcm_substream *substream,
 /*
  * ADAT I/O capabilities (full-duplex mode)
  */
-static struct snd_pcm_hardware snd_rme32_adat_fd_info =
+static const struct snd_pcm_hardware snd_rme32_adat_fd_info =
 {
 	.info =		     (SNDRV_PCM_INFO_MMAP |
 			      SNDRV_PCM_INFO_MMAP_VALID |
diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c
index 2e19ba5..31b9a3d 100644
--- a/sound/pci/rme96.c
+++ b/sound/pci/rme96.c
@@ -384,7 +384,7 @@ struct rme96 {
 /*
  * Digital output capabilities (S/PDIF)
  */
-static struct snd_pcm_hardware snd_rme96_playback_spdif_info =
+static const struct snd_pcm_hardware snd_rme96_playback_spdif_info =
 {
 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
 			      SNDRV_PCM_INFO_MMAP_VALID |
@@ -415,7 +415,7 @@ struct rme96 {
 /*
  * Digital input capabilities (S/PDIF)
  */
-static struct snd_pcm_hardware snd_rme96_capture_spdif_info =
+static const struct snd_pcm_hardware snd_rme96_capture_spdif_info =
 {
 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
 			      SNDRV_PCM_INFO_MMAP_VALID |
@@ -446,7 +446,7 @@ struct rme96 {
 /*
  * Digital output capabilities (ADAT)
  */
-static struct snd_pcm_hardware snd_rme96_playback_adat_info =
+static const struct snd_pcm_hardware snd_rme96_playback_adat_info =
 {
 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
 			      SNDRV_PCM_INFO_MMAP_VALID |
@@ -473,7 +473,7 @@ struct rme96 {
 /*
  * Digital input capabilities (ADAT)
  */
-static struct snd_pcm_hardware snd_rme96_capture_adat_info =
+static const struct snd_pcm_hardware snd_rme96_capture_adat_info =
 {
 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
 			      SNDRV_PCM_INFO_MMAP_VALID |
diff --git a/sound/pci/sis7019.c b/sound/pci/sis7019.c
index 3518887..964acf3 100644
--- a/sound/pci/sis7019.c
+++ b/sound/pci/sis7019.c
@@ -159,7 +159,7 @@ struct sis7019 {
  * We'll add a constraint upon open that limits the period and buffer sample
  * size to values that are legal for the hardware.
  */
-static struct snd_pcm_hardware sis_playback_hw_info = {
+static const struct snd_pcm_hardware sis_playback_hw_info = {
 	.info = (SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_MMAP_VALID |
 		 SNDRV_PCM_INFO_INTERLEAVED |
@@ -180,7 +180,7 @@ struct sis7019 {
 	.periods_max = (0xfff9 / 9),
 };
 
-static struct snd_pcm_hardware sis_capture_hw_info = {
+static const struct snd_pcm_hardware sis_capture_hw_info = {
 	.info = (SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_MMAP_VALID |
 		 SNDRV_PCM_INFO_INTERLEAVED |
diff --git a/sound/pci/sonicvibes.c b/sound/pci/sonicvibes.c
index 784d762..a8abb15 100644
--- a/sound/pci/sonicvibes.c
+++ b/sound/pci/sonicvibes.c
@@ -776,7 +776,7 @@ static snd_pcm_uframes_t snd_sonicvibes_capture_pointer(struct snd_pcm_substream
 	return bytes_to_frames(substream->runtime, ptr);
 }
 
-static struct snd_pcm_hardware snd_sonicvibes_playback =
+static const struct snd_pcm_hardware snd_sonicvibes_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -795,7 +795,7 @@ static snd_pcm_uframes_t snd_sonicvibes_capture_pointer(struct snd_pcm_substream
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_sonicvibes_capture =
+static const struct snd_pcm_hardware snd_sonicvibes_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index c767b86..3a1c0b8 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -1150,7 +1150,7 @@ static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
 /*
  * pcm hardware definition, identical for both playback and capture
  */
-static struct snd_pcm_hardware snd_via82xx_hw =
+static const struct snd_pcm_hardware snd_via82xx_hw =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
diff --git a/sound/pci/via82xx_modem.c b/sound/pci/via82xx_modem.c
index 55f79b2..8a69221 100644
--- a/sound/pci/via82xx_modem.c
+++ b/sound/pci/via82xx_modem.c
@@ -714,7 +714,7 @@ static int snd_via82xx_pcm_prepare(struct snd_pcm_substream *substream)
 /*
  * pcm hardware definition, identical for both playback and capture
  */
-static struct snd_pcm_hardware snd_via82xx_hw =
+static const struct snd_pcm_hardware snd_via82xx_hw =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
-- 
1.9.1



From - Thu Nov 08 21:40:09 2018
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From: Tom Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: PCI resource problem on C360
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On Tue, Aug 08, 2017 at 05:48:33PM +0200, Helge Deller wrote:
> Maybe the drivers of such NIC/SCSI cards don't request all available
> resources? 

log is clear that the pci probing stuff is not able to setup pci resources.
And that's nothing a driver fix up later (without dirty tricks of course).
The problem is that dino code doesn't set the space_offset of the host
bridge correctly for 64bit kernels. Will send a patch later.

Now aty driver is happy with the mach64 card:

atyfb 0000:00:03.0: runtime IRQ mapping not provided by arch
atyfb 0000:00:03.0: enabling device (0082 -> 0083)
atyfb 0000:00:03.0: enabling SERR and PARITY (0083 -> 01c3)
atyfb: ATI264VT2 (A4) (Mach64 VT) [0x5654 rev 0x40]
atyfb: 512K RESV, 14.31818 MHz XTAL, 200 MHz PLL, 67 Mhz MCLK, 67 MHz XCLK
Console: switching to colour frame buffer device 80x30
atyfb: fb0: ATY Mach64 frame buffer device on PCI

Thomas.

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From: Takashi Iwai <tiwai@suse.de>
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To: "Bhumika Goyal" <bhumirks@gmail.com>
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On Sat, 12 Aug 2017 17:31:12 +0200,
Bhumika Goyal wrote:
> 
> Declare snd_pcm_hardware const. 
> Done using Coccinelle.
> 
> Bhumika Goyal (16):
>   ALSA: aw2: make snd_pcm_hardware const
>   ALSA: ca0106: make snd_pcm_hardware const
>   ALSA: cs46xx: make snd_pcm_hardware const
>   ALSA: korg1212: make snd_pcm_hardware const
>   ALSA: cs5535audio: make snd_pcm_hardware const
>   ALSA: emu10k1: make snd_pcm_hardware const
>   ALSA: lola: make snd_pcm_hardware const
>   ALSA: lx6464es: make snd_pcm_hardware const
>   ALSA: mixart: make snd_pcm_hardware const
>   ALSA: ctxfi: make snd_pcm_hardware const
>   ALSA: pcxhr: make snd_pcm_hardware const
>   ALSA: riptide: make snd_pcm_hardware const
>   ALSA: rme9652: make snd_pcm_hardware const
>   ALSA: trident: make snd_pcm_hardware const
>   ALSA: ymfpci: make snd_pcm_hardware const
>   ALSA: pci: make snd_pcm_hardware const

Applied all 16 patches.  Thanks.


Takashi


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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: [PATCH] parisc: pci memory bar assignment fails with 64bit kernels on dino/cujo
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For 64bit kernels the lmmio_space_offset of the host bridge window
isn't set correctly on systems with dino/cujo PCI host bridges.
This leads to not assigned memory bars and failing drivers, which
need to use these bars.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---
 drivers/parisc/dino.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 5c63b92..ed92c12 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -956,7 +956,7 @@ static int __init dino_probe(struct parisc_device *dev)
 
 	dino_dev->hba.dev = dev;
 	dino_dev->hba.base_addr = ioremap_nocache(hpa, 4096);
-	dino_dev->hba.lmmio_space_offset = 0;	/* CPU addrs == bus addrs */
+	dino_dev->hba.lmmio_space_offset = PCI_F_EXTEND;
 	spin_lock_init(&dino_dev->dinosaur_pen);
 	dino_dev->hba.iommu = ccio_get_iommu(dev);
 
-- 
2.1.4

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Hi Thomas,

On 12.08.2017 23:36, Thomas Bogendoerfer wrote:
> For 64bit kernels the lmmio_space_offset of the host bridge window
> isn't set correctly on systems with dino/cujo PCI host bridges.
> This leads to not assigned memory bars and failing drivers, which
> need to use these bars.
> 
> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

Acked-by: Helge Deller <deller@gmx.de>

Very good finding!
Does it mean that your mach64 card will then generally not being
able to work on a 32bit kernel (due to PCI resource shortage) ?

Now, if we find the issue why the FireGL cards don't work accelerated
on the C8000 it would be great.

Helge

> ---
>  drivers/parisc/dino.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
> index 5c63b92..ed92c12 100644
> --- a/drivers/parisc/dino.c
> +++ b/drivers/parisc/dino.c
> @@ -956,7 +956,7 @@ static int __init dino_probe(struct parisc_device *dev)
>  
>  	dino_dev->hba.dev = dev;
>  	dino_dev->hba.base_addr = ioremap_nocache(hpa, 4096);
> -	dino_dev->hba.lmmio_space_offset = 0;	/* CPU addrs == bus addrs */
> +	dino_dev->hba.lmmio_space_offset = PCI_F_EXTEND;
>  	spin_lock_init(&dino_dev->dinosaur_pen);
>  	dino_dev->hba.iommu = ccio_get_iommu(dev);
>  
> 

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Subject: Re: [PATCH] parisc: pci memory bar assignment fails with 64bit
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On Sun, Aug 13, 2017 at 09:56:26AM +0200, Helge Deller wrote:
> Does it mean that your mach64 card will then generally not being
> able to work on a 32bit kernel (due to PCI resource shortage) ?

no, it works 32bit on a B180, but I only tried 64bit kernel on the
C360.

> Now, if we find the issue why the FireGL cards don't work accelerated
> on the C8000 it would be great.

that's my final goal. My next step is to see whether I could get cards
working, which are supported by drivers/video/fbdev/aty/radeon*
This driver is known to work big endian, so I don't have to wonder
about endian issues in the first place...

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]
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Helge,

> On parisc I see this UBSAN warning with a sym53c896:
>
>  UBSAN: Undefined behaviour in ./drivers/scsi/sym53c8xx_2/sym_hipd.c:762:24
>  index -1903078336 is out of range for type 'u32 [7]'
>
> Avoid this warning by switching to dev64_ul().

Applied to 4.14/scsi-queue. Thank you, Helge!

-- 
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Subject: Re: [PATCH] printk-formats.txt: Add examples for %pS and %pF
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On Fri 2017-08-11 09:31:28, Helge Deller wrote:
> On 11.08.2017 02:15, Sergey Senozhatsky wrote:
> > On (08/10/17 19:35), Helge Deller wrote:
> >> Sometimes people seems unclear when to use the %pS or %pF printk format.
> >> Adding some examples may help to avoid such mistakes.
> >>
> >> See for example commit 51d96dc2e2dc ("random: fix warning message on ia64 and
> >> parisc") which fixed such a wrong format string.
> >>
> >> Signed-off-by: Helge Deller <deller@gmx.de>
> >>
> >> diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
> >> index 65ea591..be8c05b 100644
> >> --- a/Documentation/printk-formats.txt
> >> +++ b/Documentation/printk-formats.txt
> >> @@ -73,6 +73,12 @@ actually function descriptors which must first be resolved. The ``F`` and
> >>  ``f`` specifiers perform this resolution and then provide the same
> >>  functionality as the ``S`` and ``s`` specifiers.
> >>  
> >> +Examples::
> >> +
> >> +	printk("Called from %pS.\n", __builtin_return_address(0));
> >> +	printk("Called from %pS.\n", (void *)regs->ip);
> >> +	printk("Called from %pF.\n", &gettimeofday);
> > 
> > there is this paragraph
> > 
> > : On ia64, ppc64 and parisc64 architectures function pointers are
> > : actually function descriptors which must first be resolved. The ``F`` and
> > : ``f`` specifiers perform this resolution and then provide the same
> > : functionality as the ``S`` and ``s`` specifiers.
> > 
> > which supposed to explain everything in details. the examples
> > don't make it any `clearer', IMHO.
> 
> Experts surely do know what function descriptors are.
> Nevertheless even those often get it wrong as can be seen in
> various commits.

It seems that these specifiers are used the wrong way on many
locations. They might be worth fixing but I cannot test it
easily.

Hmm, using %pF might actually cause a crash when used
on direct function address.


> The hope with this patch is to show widely-used examples
> and avoid additional commits afterwards to fix it up.

IMHO, one problem is that the meaning of ''F'' and ''f''
is hidden at the end of the section. Also the first line

  'For printing symbols and function pointers. The ``S`` and ``s`` '

kind of invites to use ``S`` and ``s`` even for function pointers.
I suggest to switch the order, slightly retranslate, add the
examples, see below.


> This patch was meant to be RFC.
> If you decide not to take it, I'm fine as well.
> 
> > *may be* on "ia64, ppc64 and parisc64" we can somehow check
> > that the pointer, which we pass as %pS, belongs to .text and
> > print some build-time warnings. well, if it's actually a
> > problem. dunno.

I think that it would need to be a runtime check because many/most
printed addresses are not statically defined.


> I think it's not needed. Those bugs will be seen and fixed.

I am not sure how many people are familiar with this problem.
I might help to avoid some headaches when debugging.

If we add the warning, it should be ratelimited to reduce messing
of the original message.

I do not have strong opinion about it.


Here is the updated patch with my proposed changes.
Feel free to update it:


>From ef983c65095cada994c1fe531e2b98e936c943bf Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Tue, 15 Aug 2017 11:34:19 +0200
Subject: [PATCH] printk-formats.txt: Better describe the difference between
 %pS and %pF

Sometimes people seems unclear when to use the %pS or %pF printk format.
For example, see commit 51d96dc2e2dc ("random: fix warning message on ia64
and parisc") which fixed such a wrong format string.

The documentation should be more clear about the difference.

Signed-off-by: Helge Deller <deller@gmx.de>
[pmladek@suse.com: Restructure the entire section]
Signed-off-by: Petr Mladek <pmladek@suse.com>
---
 Documentation/printk-formats.txt | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 65ea5915178b..074670b98bac 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -58,20 +58,23 @@ Symbols/Function Pointers
 	%ps	versatile_init
 	%pB	prev_fn_of_versatile_init+0x88/0x88
 
-For printing symbols and function pointers. The ``S`` and ``s`` specifiers
-result in the symbol name with (``S``) or without (``s``) offsets. Where
-this is used on a kernel without KALLSYMS - the symbol address is
-printed instead.
+The ``F`` and ``f`` specifiers are for printing function pointers,
+for example, f->func, &gettimeofday. They have the same result as
+``S`` and ``s`` specifiers. But they do an extra conversion on
+ia64, ppc64 and parisc64 architectures where the function pointers
+are actually function descriptors.
+
+The ``S`` and ``s`` specifiers can be used for printing symbols
+from direct addresses, for example, __builtin_return_address(0),
+(void *)regs->ip. They result in the symbol name with (``S``) or
+without (``s``) offsets. If KALLSYMS are disabled then the symbol
+address is printed instead.
 
 The ``B`` specifier results in the symbol name with offsets and should be
 used when printing stack backtraces. The specifier takes into
 consideration the effect of compiler optimisations which may occur
 when tail-call``s are used and marked with the noreturn GCC attribute.
 
-On ia64, ppc64 and parisc64 architectures function pointers are
-actually function descriptors which must first be resolved. The ``F`` and
-``f`` specifiers perform this resolution and then provide the same
-functionality as the ``S`` and ``s`` specifiers.
 
 Kernel Pointers
 ===============
-- 
1.8.5.6



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On Thu, 10 Aug 2017 19:35:33 +0200
Helge Deller <deller@gmx.de> wrote:

> Sometimes people seems unclear when to use the %pS or %pF printk format.
> Adding some examples may help to avoid such mistakes.
> 
> See for example commit 51d96dc2e2dc ("random: fix warning message on ia64 and
> parisc") which fixed such a wrong format string.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
> index 65ea591..be8c05b 100644
> --- a/Documentation/printk-formats.txt
> +++ b/Documentation/printk-formats.txt
> @@ -73,6 +73,12 @@ actually function descriptors which must first be resolved. The ``F`` and
>  ``f`` specifiers perform this resolution and then provide the same
>  functionality as the ``S`` and ``s`` specifiers.
>  
> +Examples::
> +
> +	printk("Called from %pS.\n", __builtin_return_address(0));
> +	printk("Called from %pS.\n", (void *)regs->ip);
> +	printk("Called from %pF.\n", &gettimeofday);

Is the '&' really necessary? What about using the example:

	printk("Called in %pF.\n", __func__);

?

-- Steve

> +
>  Kernel Pointers
>  ===============
>  

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On 15.08.2017 14:46, Steven Rostedt wrote:
> On Thu, 10 Aug 2017 19:35:33 +0200
> Helge Deller <deller@gmx.de> wrote:
> 
>> Sometimes people seems unclear when to use the %pS or %pF printk format.
>> Adding some examples may help to avoid such mistakes.
>>
>> See for example commit 51d96dc2e2dc ("random: fix warning message on ia64 and
>> parisc") which fixed such a wrong format string.
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
>> index 65ea591..be8c05b 100644
>> --- a/Documentation/printk-formats.txt
>> +++ b/Documentation/printk-formats.txt
>> @@ -73,6 +73,12 @@ actually function descriptors which must first be resolved. The ``F`` and
>>  ``f`` specifiers perform this resolution and then provide the same
>>  functionality as the ``S`` and ``s`` specifiers.
>>  
>> +Examples::
>> +
>> +	printk("Called from %pS.\n", __builtin_return_address(0));
>> +	printk("Called from %pS.\n", (void *)regs->ip);
>> +	printk("Called from %pF.\n", &gettimeofday);
> 
> Is the '&' really necessary? 
The '&' is not necessary. The compiler doesn't complain either.

> What about using the example:
> 	printk("Called in %pF.\n", __func__);

Very interesting!

This code:
void smp_cpus_done() {
printk("Called from %pF.\n", smp_cpus_done);
printk("Called from %pf.\n", smp_cpus_done);
printk("Called in %pS.\n", __func__);
printk("Called in %ps.\n", __func__);
printk("Called in %pF.\n", __func__);
printk("Called in %pf.\n", __func__);

gives:
 Called from smp_cpus_done+0x0/0x1b8.
 Called from smp_cpus_done.
 Called in __func__.28197+0x0/0x20.
 Called in __func__.28197.
 Called in 0x5041524953433332.
 Called in 0x5041524953433332.

So, the correct usage is:
printk("Called in %pS.\n", __func__);

But it should have printed
 Called from smp_cpus_done+0x0/0x1b8.
which means the (parisc?) printk resolver doesn't work correctly.

In assembly code a pointer to this object is handed to printk:
        .type   __func__.28197, @object
        .size   __func__.28197, 14
__func__.28197:
        .stringz        "smp_cpus_done"

I'll look into this problem.

Helge
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Subject: Re: [PATCH] printk-formats.txt: Add examples for %pS and %pF
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On 15.08.2017 21:41, Helge Deller wrote:
> On 15.08.2017 14:46, Steven Rostedt wrote:
>> On Thu, 10 Aug 2017 19:35:33 +0200
>> Helge Deller <deller@gmx.de> wrote:
>>
>>> Sometimes people seems unclear when to use the %pS or %pF printk format.
>>> Adding some examples may help to avoid such mistakes.
>>>
>>> See for example commit 51d96dc2e2dc ("random: fix warning message on ia64 and
>>> parisc") which fixed such a wrong format string.
>>>
>>> Signed-off-by: Helge Deller <deller@gmx.de>
>>>
>>> diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
>>> index 65ea591..be8c05b 100644
>>> --- a/Documentation/printk-formats.txt
>>> +++ b/Documentation/printk-formats.txt
>>> @@ -73,6 +73,12 @@ actually function descriptors which must first be resolved. The ``F`` and
>>>  ``f`` specifiers perform this resolution and then provide the same
>>>  functionality as the ``S`` and ``s`` specifiers.
>>>  
>>> +Examples::
>>> +
>>> +	printk("Called from %pS.\n", __builtin_return_address(0));
>>> +	printk("Called from %pS.\n", (void *)regs->ip);
>>> +	printk("Called from %pF.\n", &gettimeofday);
>>
>> Is the '&' really necessary? 
> The '&' is not necessary. The compiler doesn't complain either.
> 
>> What about using the example:
>> 	printk("Called in %pF.\n", __func__);
> 
> Very interesting!
> 
> This code:
> void smp_cpus_done() {
> printk("Called from %pF.\n", smp_cpus_done);
> printk("Called from %pf.\n", smp_cpus_done);
> printk("Called in %pS.\n", __func__);
> printk("Called in %ps.\n", __func__);
> printk("Called in %pF.\n", __func__);
> printk("Called in %pf.\n", __func__);
> 
> gives:
>  Called from smp_cpus_done+0x0/0x1b8.
>  Called from smp_cpus_done.
>  Called in __func__.28197+0x0/0x20.
>  Called in __func__.28197.
>  Called in 0x5041524953433332.
>  Called in 0x5041524953433332.
> 
> So, the correct usage is:
> printk("Called in %pS.\n", __func__);

I'm wrong.
The correct usage would be:
 printk("Called in %s.\n", __func__);

__func__ is just a pointer to a string.

Helge

> 
> But it should have printed
>  Called from smp_cpus_done+0x0/0x1b8.
> which means the (parisc?) printk resolver doesn't work correctly.
> 
> In assembly code a pointer to this object is handed to printk:
>         .type   __func__.28197, @object
>         .size   __func__.28197, 14
> __func__.28197:
>         .stringz        "smp_cpus_done"
> 
> I'll look into this problem.
> 
> Helge
> 

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On 15.08.2017 13:36, Petr Mladek wrote:
> On Fri 2017-08-11 09:31:28, Helge Deller wrote:
>> On 11.08.2017 02:15, Sergey Senozhatsky wrote:
>>> On (08/10/17 19:35), Helge Deller wrote:
>>>> Sometimes people seems unclear when to use the %pS or %pF printk format.
>>>> Adding some examples may help to avoid such mistakes.
>>>>
>>>> See for example commit 51d96dc2e2dc ("random: fix warning message on ia64 and
>>>> parisc") which fixed such a wrong format string.
>>>>
>>>> Signed-off-by: Helge Deller <deller@gmx.de>
>>>>
>>>> diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
>>>> index 65ea591..be8c05b 100644
>>>> --- a/Documentation/printk-formats.txt
>>>> +++ b/Documentation/printk-formats.txt
>>>> @@ -73,6 +73,12 @@ actually function descriptors which must first be resolved. The ``F`` and
>>>>  ``f`` specifiers perform this resolution and then provide the same
>>>>  functionality as the ``S`` and ``s`` specifiers.
>>>>  
>>>> +Examples::
>>>> +
>>>> +	printk("Called from %pS.\n", __builtin_return_address(0));
>>>> +	printk("Called from %pS.\n", (void *)regs->ip);
>>>> +	printk("Called from %pF.\n", &gettimeofday);
>>>
>>> there is this paragraph
>>>
>>> : On ia64, ppc64 and parisc64 architectures function pointers are
>>> : actually function descriptors which must first be resolved. The ``F`` and
>>> : ``f`` specifiers perform this resolution and then provide the same
>>> : functionality as the ``S`` and ``s`` specifiers.
>>>
>>> which supposed to explain everything in details. the examples
>>> don't make it any `clearer', IMHO.
>>
>> Experts surely do know what function descriptors are.
>> Nevertheless even those often get it wrong as can be seen in
>> various commits.
> 
> It seems that these specifiers are used the wrong way on many
> locations. 

Yes. %pF usage in mm/memblock.c is just one example.

> They might be worth fixing but I cannot test it easily.

I can check and send patches at some point.
 
> Hmm, using %pF might actually cause a crash when used
> on direct function address.

Probably won't happen on parisc, but basically you are right.


>> The hope with this patch is to show widely-used examples
>> and avoid additional commits afterwards to fix it up.
> 
> IMHO, one problem is that the meaning of ''F'' and ''f''
> is hidden at the end of the section. Also the first line
> 
>   'For printing symbols and function pointers. The ``S`` and ``s`` '
> 
> kind of invites to use ``S`` and ``s`` even for function pointers.
> I suggest to switch the order, slightly retranslate, add the
> examples, see below.
> 
> 
>> This patch was meant to be RFC.
>> If you decide not to take it, I'm fine as well.
>>
>>> *may be* on "ia64, ppc64 and parisc64" we can somehow check
>>> that the pointer, which we pass as %pS, belongs to .text and
>>> print some build-time warnings. well, if it's actually a
>>> problem. dunno.
> 
> I think that it would need to be a runtime check because many/most
> printed addresses are not statically defined.
> 
> 
>> I think it's not needed. Those bugs will be seen and fixed.
> 
> I am not sure how many people are familiar with this problem.
> I might help to avoid some headaches when debugging.
> 
> If we add the warning, it should be ratelimited to reduce messing
> of the original message.
> 
> I do not have strong opinion about it.
> 
> 
> Here is the updated patch with my proposed changes.
> Feel free to update it:

Much better!
Thanks a lot.

Maybe we should mention usage of __func__ with '%s' (see other thread).

And _RET_IP_ is worth mentioning beside __builtin_return_address(0) too,
because it's used quite often wrongly.
   
Helge

> From ef983c65095cada994c1fe531e2b98e936c943bf Mon Sep 17 00:00:00 2001
> From: Helge Deller <deller@gmx.de>
> Date: Tue, 15 Aug 2017 11:34:19 +0200
> Subject: [PATCH] printk-formats.txt: Better describe the difference between
>  %pS and %pF
> 
> Sometimes people seems unclear when to use the %pS or %pF printk format.
> For example, see commit 51d96dc2e2dc ("random: fix warning message on ia64
> and parisc") which fixed such a wrong format string.
> 
> The documentation should be more clear about the difference.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> [pmladek@suse.com: Restructure the entire section]
> Signed-off-by: Petr Mladek <pmladek@suse.com>
> ---
>  Documentation/printk-formats.txt | 19 +++++++++++--------
>  1 file changed, 11 insertions(+), 8 deletions(-)
> 
> diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
> index 65ea5915178b..074670b98bac 100644
> --- a/Documentation/printk-formats.txt
> +++ b/Documentation/printk-formats.txt
> @@ -58,20 +58,23 @@ Symbols/Function Pointers
>  	%ps	versatile_init
>  	%pB	prev_fn_of_versatile_init+0x88/0x88
>  
> -For printing symbols and function pointers. The ``S`` and ``s`` specifiers
> -result in the symbol name with (``S``) or without (``s``) offsets. Where
> -this is used on a kernel without KALLSYMS - the symbol address is
> -printed instead.
> +The ``F`` and ``f`` specifiers are for printing function pointers,
> +for example, f->func, &gettimeofday. They have the same result as
> +``S`` and ``s`` specifiers. But they do an extra conversion on
> +ia64, ppc64 and parisc64 architectures where the function pointers
> +are actually function descriptors.
> +
> +The ``S`` and ``s`` specifiers can be used for printing symbols
> +from direct addresses, for example, __builtin_return_address(0),
> +(void *)regs->ip. They result in the symbol name with (``S``) or
> +without (``s``) offsets. If KALLSYMS are disabled then the symbol
> +address is printed instead.
>  
>  The ``B`` specifier results in the symbol name with offsets and should be
>  used when printing stack backtraces. The specifier takes into
>  consideration the effect of compiler optimisations which may occur
>  when tail-call``s are used and marked with the noreturn GCC attribute.
>  
> -On ia64, ppc64 and parisc64 architectures function pointers are
> -actually function descriptors which must first be resolved. The ``F`` and
> -``f`` specifiers perform this resolution and then provide the same
> -functionality as the ``S`` and ``s`` specifiers.
>  
>  Kernel Pointers
>  ===============
> 



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To: Helge Deller <deller@gmx.de>
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On Tue, 15 Aug 2017 21:47:27 +0200
Helge Deller <deller@gmx.de> wrote:

> > Very interesting!
> > 
> > This code:
> > void smp_cpus_done() {
> > printk("Called from %pF.\n", smp_cpus_done);
> > printk("Called from %pf.\n", smp_cpus_done);
> > printk("Called in %pS.\n", __func__);
> > printk("Called in %ps.\n", __func__);
> > printk("Called in %pF.\n", __func__);
> > printk("Called in %pf.\n", __func__);
> > 
> > gives:
> >  Called from smp_cpus_done+0x0/0x1b8.
> >  Called from smp_cpus_done.
> >  Called in __func__.28197+0x0/0x20.
> >  Called in __func__.28197.
> >  Called in 0x5041524953433332.
> >  Called in 0x5041524953433332.
> > 
> > So, the correct usage is:
> > printk("Called in %pS.\n", __func__);  
> 
> I'm wrong.
> The correct usage would be:
>  printk("Called in %s.\n", __func__);
> 
> __func__ is just a pointer to a string.

OK, I'm still on vacation :-/

Yeah, I was looking for usages of %pF, and came across this:

		pr_warn("%s: NULL omap_sr from %pF\n",
			__func__, (void *)_RET_IP_);

And not noticing the first "%s" :-p

-- Steve

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Subject: Re: [PATCH] printk-formats.txt: Add examples for %pS and %pF
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Hello,

sorry for the delay.

On (08/15/17 13:36), Petr Mladek wrote:
[..]
> > Experts surely do know what function descriptors are.
> > Nevertheless even those often get it wrong as can be seen in
> > various commits.
> 
> It seems that these specifiers are used the wrong way on many
> locations. They might be worth fixing but I cannot test it
> easily.
> 
> Hmm, using %pF might actually cause a crash when used
> on direct function address.

:(

> > The hope with this patch is to show widely-used examples
> > and avoid additional commits afterwards to fix it up.
> 
> IMHO, one problem is that the meaning of ''F'' and ''f''
> is hidden at the end of the section. Also the first line
> 
>   'For printing symbols and function pointers. The ``S`` and ``s`` '
> 
> kind of invites to use ``S`` and ``s`` even for function pointers.
> I suggest to switch the order, slightly retranslate, add the
> examples, see below.

agree. that was my problem: I saw the examples, didn't quite
understand anything and had to read that documentation section
anyway.

> > This patch was meant to be RFC.
> > If you decide not to take it, I'm fine as well.
> > 
> > > *may be* on "ia64, ppc64 and parisc64" we can somehow check
> > > that the pointer, which we pass as %pS, belongs to .text and
> > > print some build-time warnings. well, if it's actually a
> > > problem. dunno.
> 
> I think that it would need to be a runtime check because many/most
> printed addresses are not statically defined.

yep, can do.

> > I think it's not needed. Those bugs will be seen and fixed.
> 
> I am not sure how many people are familiar with this problem.
> I might help to avoid some headaches when debugging.
> 
> If we add the warning, it should be ratelimited to reduce messing
> of the original message.

sure.

[..]
> From ef983c65095cada994c1fe531e2b98e936c943bf Mon Sep 17 00:00:00 2001
> From: Helge Deller <deller@gmx.de>
> Date: Tue, 15 Aug 2017 11:34:19 +0200
> Subject: [PATCH] printk-formats.txt: Better describe the difference between
>  %pS and %pF
> 
> Sometimes people seems unclear when to use the %pS or %pF printk format.
> For example, see commit 51d96dc2e2dc ("random: fix warning message on ia64
> and parisc") which fixed such a wrong format string.
> 
> The documentation should be more clear about the difference.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> [pmladek@suse.com: Restructure the entire section]
> Signed-off-by: Petr Mladek <pmladek@suse.com>

Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>

> ---
>  Documentation/printk-formats.txt | 19 +++++++++++--------
>  1 file changed, 11 insertions(+), 8 deletions(-)
> 
> diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
> index 65ea5915178b..074670b98bac 100644
> --- a/Documentation/printk-formats.txt
> +++ b/Documentation/printk-formats.txt
> @@ -58,20 +58,23 @@ Symbols/Function Pointers
>  	%ps	versatile_init
>  	%pB	prev_fn_of_versatile_init+0x88/0x88
>  
> -For printing symbols and function pointers. The ``S`` and ``s`` specifiers
> -result in the symbol name with (``S``) or without (``s``) offsets. Where
> -this is used on a kernel without KALLSYMS - the symbol address is
> -printed instead.
> +The ``F`` and ``f`` specifiers are for printing function pointers,
> +for example, f->func, &gettimeofday. They have the same result as
> +``S`` and ``s`` specifiers. But they do an extra conversion on
> +ia64, ppc64 and parisc64 architectures where the function pointers
> +are actually function descriptors.
> +
> +The ``S`` and ``s`` specifiers can be used for printing symbols
> +from direct addresses, for example, __builtin_return_address(0),
> +(void *)regs->ip. They result in the symbol name with (``S``) or
> +without (``s``) offsets. If KALLSYMS are disabled then the symbol
> +address is printed instead.
>  
>  The ``B`` specifier results in the symbol name with offsets and should be
>  used when printing stack backtraces. The specifier takes into
>  consideration the effect of compiler optimisations which may occur
>  when tail-call``s are used and marked with the noreturn GCC attribute.
>  
> -On ia64, ppc64 and parisc64 architectures function pointers are
> -actually function descriptors which must first be resolved. The ``F`` and
> -``f`` specifiers perform this resolution and then provide the same
> -functionality as the ``S`` and ``s`` specifiers.
>  
>  Kernel Pointers
>  ===============
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Subject: [PATCH] parisc: Fix up devices below a PCI-PCI MegaRAID controller
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A MegaRAID PCI card in my rp5470 acts as PCI-PCI bridge.
Resource allocation for PCI devices behind such a bridge is quite incomplete,
so that syslog reports those warnings:

 LBA 0:10: PCI host bridge to bus 0000:50
 pci_bus 0000:50: root bus resource [io  0x80000-0x8ffff] (bus address [0x0000-0xffff])
 pci_bus 0000:50: root bus resource [mem 0xffffffff94000000-0xffffffff95ffffff] (bus address [0x94000000-0x95ffffff])
 pci_bus 0000:50: root bus resource [bus 50-57]
 pci 0000:50:00.0: [8086:0964] type 01 class 0x060400
 pci 0000:50:00.1: [8086:1960] type 00 class 0x0e0001
 pci 0000:50:00.1: reg 0x10: [mem 0x00000000-0x003fffff pref]
 pci 0000:50:00.1: reg 0x30: [mem 0x00000000-0x00007fff pref]
 pci 0000:50:00.0: Changing bridge control from 0x00000000 to 0x00000023
 pci_bus 0000:51: busn_res: can not insert [bus 51-ff] under [bus 50-57] (conflicts with (null) [bus 50-57])
 pci 0000:50:00.0: PCI bridge to [bus 51-ff]
 pci 0000:50:00.0:   bridge window [io  0x80000-0x80fff]
 pci 0000:50:00.0:   bridge window [mem 0x00000000-0x000fffff]
 pci 0000:50:00.0:   bridge window [mem 0x00000000-0x000fffff pref]
 pci 0000:50:00.0: can't claim BAR 14 [mem 0x00000000-0x000fffff]: no compatible bridge window
 pci 0000:50:00.0: can't claim BAR 15 [mem 0x00000000-0x000fffff pref]: no compatible bridge window
 pci 0000:50:00.0: can't claim BAR 16 [??? 0x00000000 flags 0x0]: no compatible bridge window
 pci_bus 0000:51: busn_res: [bus 51-ff] end is updated to 51
 pci 0000:50:00.0: BAR 16: [??? 0x00000000 flags 0x20000000] has bogus alignment
 pci 0000:50:00.1: BAR 0: assigned [mem 0xffffffff94000000-0xffffffff943fffff pref]
 pci 0000:50:00.0: BAR 14: assigned [mem 0xffffffff94400000-0xffffffff944fffff]
 pci 0000:50:00.0: BAR 15: assigned [mem 0xffffffff94500000-0xffffffff945fffff pref]
 pci 0000:50:00.1: BAR 6: assigned [mem 0xffffffff94600000-0xffffffff94607fff pref]
 pci 0000:50:00.0: PCI bridge to [bus 51]
 pci 0000:50:00.0:   bridge window [io  0x80000-0x80fff]
 pci 0000:50:00.0:   bridge window [mem 0xffffffff94400000-0xffffffff944fffff]
 pci 0000:50:00.0:   bridge window [mem 0xffffffff94500000-0xffffffff945fffff pref]

The patch below tries to improve the resource allocation.
Output is now:

 LBA 0:10: PCI host bridge to bus 0000:50
 pci_bus 0000:50: root bus resource [io  0x80000-0x8ffff] (bus address [0x0000-0xffff])
 pci_bus 0000:50: root bus resource [mem 0xffffffff94000000-0xffffffff95ffffff] (bus address [0x94000000-0x95ffffff])
 pci_bus 0000:50: root bus resource [bus 50-57]
 pci 0000:50:00.0: Changing bridge control from 0x00000000 to 0x00000023
 pci 0000:50:00.0: PCI bridge to [bus 51-ff]
 pci 0000:50:00.1: BAR 0: assigned [mem 0xffffffff94000000-0xffffffff943fffff pref]
 pci 0000:50:00.1: BAR 6: assigned [mem 0xffffffff94400000-0xffffffff94407fff pref]
 pci 0000:50:00.0: PCI bridge to [bus 51]
 pci 0000:50:00.0:   bridge window [io  0x80000-0x80fff]

Signed-off-by: Helge Deller <deller@gmx.de>
 
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index bc286cb..4dc6df3 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -667,6 +667,42 @@ extend_lmmio_len(unsigned long start, unsigned long end, unsigned long lba_len)
 #define truncate_pat_collision(r,n)  (0)
 #endif
 
+static void pcibios_allocate_bridge_resources(struct pci_dev *dev)
+{
+	int idx;
+	struct resource *r;
+
+	for (idx = PCI_BRIDGE_RESOURCES; idx < PCI_NUM_RESOURCES; idx++) {
+		r = &dev->resource[idx];
+		if (!r->flags)
+			continue;
+		if (r->parent)	/* Already allocated */
+			continue;
+		if (!r->start || pci_claim_bridge_resource(dev, idx) < 0) {
+			/*
+			 * Something is wrong with the region.
+			 * Invalidate the resource to prevent
+			 * child resource allocations in this
+			 * range.
+			 */
+			r->start = r->end = 0;
+			r->flags = 0;
+		}
+	}
+}
+
+static void pcibios_allocate_bus_resources(struct pci_bus *bus)
+{
+	struct pci_bus *child;
+
+	/* Depth-First Search on bus tree */
+	if (bus->self)
+		pcibios_allocate_bridge_resources(bus->self);
+	list_for_each_entry(child, &bus->children, node)
+		pcibios_allocate_bus_resources(child);
+}
+
+
 /*
 ** The algorithm is generic code.
 ** But it needs to access local data structures to get the IRQ base.
@@ -693,11 +729,11 @@ lba_fixup_bus(struct pci_bus *bus)
 	** pci_alloc_primary_bus() mangles this.
 	*/
 	if (bus->parent) {
-		int i;
 		/* PCI-PCI Bridge */
 		pci_read_bridge_bases(bus);
-		for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++)
-			pci_claim_bridge_resource(bus->self, i);
+
+		/* check an allocate bridge resources */
+		pcibios_allocate_bus_resources(bus);
 	} else {
 		/* Host-PCI Bridge */
 		int err;
--
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Subject: [hp-parisc:boot-devel 1/1] arch/powerpc/boot/zutil.h:82:5: error:
 unknown type name 'uint32_t'
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--+HP7ph2BbKc20aGI
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git boot-devel
head:   51e30412ea12a9febdbf33346f54541ce29f5e3a
commit: 51e30412ea12a9febdbf33346f54541ce29f5e3a [1/1] Initial support for compressed boot
config: powerpc-socrates_defconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 51e30412ea12a9febdbf33346f54541ce29f5e3a
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   In file included from arch/powerpc/boot/inffast.c:6:0:
   arch/powerpc/boot/zutil.h: In function 'zlib_adler32':
>> arch/powerpc/boot/zutil.h:82:5: error: unknown type name 'uint32_t'
        uint32_t s1 = adler & 0xffff;
        ^~~~~~~~
   arch/powerpc/boot/zutil.h:83:5: error: unknown type name 'uint32_t'
        uint32_t s2 = (adler >> 16) & 0xffff;
        ^~~~~~~~
--
   In file included from arch/powerpc/boot/inflate.c:12:0:
   arch/powerpc/boot/zutil.h: In function 'zlib_adler32':
>> arch/powerpc/boot/zutil.h:82:5: error: unknown type name 'uint32_t'
        uint32_t s1 = adler & 0xffff;
        ^~~~~~~~
   arch/powerpc/boot/zutil.h:83:5: error: unknown type name 'uint32_t'
        uint32_t s2 = (adler >> 16) & 0xffff;
        ^~~~~~~~
   arch/powerpc/boot/inflate.c: In function 'zlib_inflate':
>> arch/powerpc/boot/inflate.c:358:18: error: 'uint32_t' undeclared (first use in this function)
                    (uint32_t)(((BITS(8) << 8) + (hold >> 8))) % 31) { // avoid __umoddi3
                     ^~~~~~~~
   arch/powerpc/boot/inflate.c:358:18: note: each undeclared identifier is reported only once for each function it appears in

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

--+HP7ph2BbKc20aGI
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Subject: [PATCH 00/12] ALSA: make snd_pcm_hardware const
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Make these const.

Bhumika Goyal (12):
  ALSA: arm: make snd_pcm_hardware const
  ALSA: atmel: make snd_pcm_hardware const
  ALSA: drivers: make snd_pcm_hardware const
  ALSA: isa: make snd_pcm_hardware const
  ALSA: mips: make snd_pcm_hardware const
  ALSA: pci: make snd_pcm_hardware const
  ALSA: pcmcia: make snd_pcm_hardware const
  ALSA: ppc: make snd_pcm_hardware const
  ALSA: sh: make snd_pcm_hardware const
  ALSA: sparc: make snd_pcm_hardware const
  ALSA: usb: make snd_pcm_hardware const
  ALSA: parisc: make snd_pcm_hardware const

 sound/arm/aaci.c                       | 2 +-
 sound/atmel/ac97c.c                    | 2 +-
 sound/drivers/aloop.c                  | 2 +-
 sound/drivers/dummy.c                  | 2 +-
 sound/drivers/ml403-ac97cr.c           | 4 ++--
 sound/drivers/pcsp/pcsp_lib.c          | 2 +-
 sound/drivers/vx/vx_pcm.c              | 4 ++--
 sound/isa/ad1816a/ad1816a_lib.c        | 4 ++--
 sound/isa/es1688/es1688_lib.c          | 4 ++--
 sound/isa/es18xx.c                     | 4 ++--
 sound/isa/gus/gus_pcm.c                | 4 ++--
 sound/isa/msnd/msnd.c                  | 4 ++--
 sound/isa/sb/emu8000_pcm.c             | 2 +-
 sound/isa/sb/sb16_main.c               | 4 ++--
 sound/isa/sb/sb8_main.c                | 4 ++--
 sound/isa/wss/wss_lib.c                | 4 ++--
 sound/mips/hal2.c                      | 2 +-
 sound/mips/sgio2audio.c                | 2 +-
 sound/parisc/harmony.c                 | 4 ++--
 sound/pci/au88x0/au88x0_pcm.c          | 8 ++++----
 sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c | 2 +-
 sound/ppc/pmac.c                       | 4 ++--
 sound/sh/aica.c                        | 2 +-
 sound/sh/sh_dac_audio.c                | 2 +-
 sound/sparc/amd7930.c                  | 2 +-
 sound/sparc/cs4231.c                   | 4 ++--
 sound/sparc/dbri.c                     | 2 +-
 sound/usb/pcm.c                        | 2 +-
 28 files changed, 44 insertions(+), 44 deletions(-)

-- 
1.9.1

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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2550884>

Make this const as it is only used in a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/arm/aaci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index 4140b1b..74cf452 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -348,7 +348,7 @@ static irqreturn_t aaci_irq(int irq, void *devid)
 /*
  * ALSA support.
  */
-static struct snd_pcm_hardware aaci_hw_info = {
+static const struct snd_pcm_hardware aaci_hw_info = {
 	.info			= SNDRV_PCM_INFO_MMAP |
 				  SNDRV_PCM_INFO_MMAP_VALID |
 				  SNDRV_PCM_INFO_INTERLEAVED |
-- 
1.9.1



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Subject: [PATCH 02/12] ALSA: atmel: make snd_pcm_hardware const
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2550885>

Make this const as it is only used in a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/atmel/ac97c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/atmel/ac97c.c b/sound/atmel/ac97c.c
index 52b0522..f3f582e 100644
--- a/sound/atmel/ac97c.c
+++ b/sound/atmel/ac97c.c
@@ -66,7 +66,7 @@ struct atmel_ac97c {
 #define ac97c_readl(chip, reg)				\
 	__raw_readl((chip)->regs + AC97C_##reg)
 
-static struct snd_pcm_hardware atmel_ac97c_hw = {
+static const struct snd_pcm_hardware atmel_ac97c_hw = {
 	.info			= (SNDRV_PCM_INFO_MMAP
 				  | SNDRV_PCM_INFO_MMAP_VALID
 				  | SNDRV_PCM_INFO_INTERLEAVED
-- 
1.9.1



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Subject: [PATCH 03/12] ALSA: drivers: make snd_pcm_hardware const
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2550886>

Make these const as they are only used in a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/drivers/aloop.c         | 2 +-
 sound/drivers/dummy.c         | 2 +-
 sound/drivers/ml403-ac97cr.c  | 4 ++--
 sound/drivers/pcsp/pcsp_lib.c | 2 +-
 sound/drivers/vx/vx_pcm.c     | 4 ++--
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
index 54f348a..6e02ee0 100644
--- a/sound/drivers/aloop.c
+++ b/sound/drivers/aloop.c
@@ -561,7 +561,7 @@ static snd_pcm_uframes_t loopback_pointer(struct snd_pcm_substream *substream)
 	return bytes_to_frames(runtime, pos);
 }
 
-static struct snd_pcm_hardware loopback_pcm_hardware =
+static const struct snd_pcm_hardware loopback_pcm_hardware =
 {
 	.info =		(SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP |
 			 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE |
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index dd5ed03..c0939a0 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -520,7 +520,7 @@ static snd_pcm_uframes_t dummy_pcm_pointer(struct snd_pcm_substream *substream)
 	return get_dummy_ops(substream)->pointer(substream);
 }
 
-static struct snd_pcm_hardware dummy_pcm_hardware = {
+static const struct snd_pcm_hardware dummy_pcm_hardware = {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_RESUME |
diff --git a/sound/drivers/ml403-ac97cr.c b/sound/drivers/ml403-ac97cr.c
index bdcb572..d634e10 100644
--- a/sound/drivers/ml403-ac97cr.c
+++ b/sound/drivers/ml403-ac97cr.c
@@ -373,7 +373,7 @@ struct snd_ml403_ac97cr {
 	struct snd_pcm_indirect2 capture_ind2_rec;
 };
 
-static struct snd_pcm_hardware snd_ml403_ac97cr_playback = {
+static const struct snd_pcm_hardware snd_ml403_ac97cr_playback = {
 	.info =	            (SNDRV_PCM_INFO_MMAP |
 			     SNDRV_PCM_INFO_INTERLEAVED |
 			     SNDRV_PCM_INFO_MMAP_VALID),
@@ -392,7 +392,7 @@ struct snd_ml403_ac97cr {
 	.fifo_size =	    0,
 };
 
-static struct snd_pcm_hardware snd_ml403_ac97cr_capture = {
+static const struct snd_pcm_hardware snd_ml403_ac97cr_capture = {
 	.info =	            (SNDRV_PCM_INFO_MMAP |
 			     SNDRV_PCM_INFO_INTERLEAVED |
 			     SNDRV_PCM_INFO_MMAP_VALID),
diff --git a/sound/drivers/pcsp/pcsp_lib.c b/sound/drivers/pcsp/pcsp_lib.c
index 44b3632..2f5a35f 100644
--- a/sound/drivers/pcsp/pcsp_lib.c
+++ b/sound/drivers/pcsp/pcsp_lib.c
@@ -285,7 +285,7 @@ static snd_pcm_uframes_t snd_pcsp_playback_pointer(struct snd_pcm_substream
 	return bytes_to_frames(substream->runtime, pos);
 }
 
-static struct snd_pcm_hardware snd_pcsp_playback = {
+static const struct snd_pcm_hardware snd_pcsp_playback = {
 	.info = (SNDRV_PCM_INFO_INTERLEAVED |
 		 SNDRV_PCM_INFO_HALF_DUPLEX |
 		 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID),
diff --git a/sound/drivers/vx/vx_pcm.c b/sound/drivers/vx/vx_pcm.c
index d318a33..380a028 100644
--- a/sound/drivers/vx/vx_pcm.c
+++ b/sound/drivers/vx/vx_pcm.c
@@ -500,7 +500,7 @@ static int vx_stop_stream(struct vx_core *chip, struct vx_pipe *pipe)
  * playback hw information
  */
 
-static struct snd_pcm_hardware vx_pcm_playback_hw = {
+static const struct snd_pcm_hardware vx_pcm_playback_hw = {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID /*|*/
 				 /*SNDRV_PCM_INFO_RESUME*/),
@@ -891,7 +891,7 @@ static int vx_pcm_prepare(struct snd_pcm_substream *subs)
  * playback hw information
  */
 
-static struct snd_pcm_hardware vx_pcm_capture_hw = {
+static const struct snd_pcm_hardware vx_pcm_capture_hw = {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID /*|*/
 				 /*SNDRV_PCM_INFO_RESUME*/),
-- 
1.9.1



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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2550890>

Make this const as it is only used in a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c b/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c
index b48aa0a..d788409 100644
--- a/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c
+++ b/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c
@@ -193,7 +193,7 @@ static int pdacf_pcm_prepare(struct snd_pcm_substream *subs)
  * capture hw information
  */
 
-static struct snd_pcm_hardware pdacf_pcm_capture_hw = {
+static const struct snd_pcm_hardware pdacf_pcm_capture_hw = {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
 				 SNDRV_PCM_INFO_MMAP_VALID |
-- 
1.9.1



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Subject: [PATCH 06/12] ALSA: pci: make snd_pcm_hardware const
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Make these const as they are only used in a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/pci/au88x0/au88x0_pcm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/pci/au88x0/au88x0_pcm.c b/sound/pci/au88x0/au88x0_pcm.c
index 848eb3c..53714e0 100644
--- a/sound/pci/au88x0/au88x0_pcm.c
+++ b/sound/pci/au88x0/au88x0_pcm.c
@@ -30,7 +30,7 @@
 #define VORTEX_PCM_TYPE(x) (x->name[40])
 
 /* hardware definition */
-static struct snd_pcm_hardware snd_vortex_playback_hw_adb = {
+static const struct snd_pcm_hardware snd_vortex_playback_hw_adb = {
 	.info =
 	    (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
 	     SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
@@ -51,7 +51,7 @@
 };
 
 #ifndef CHIP_AU8820
-static struct snd_pcm_hardware snd_vortex_playback_hw_a3d = {
+static const struct snd_pcm_hardware snd_vortex_playback_hw_a3d = {
 	.info =
 	    (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
 	     SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
@@ -71,7 +71,7 @@
 	.periods_max = 64,
 };
 #endif
-static struct snd_pcm_hardware snd_vortex_playback_hw_spdif = {
+static const struct snd_pcm_hardware snd_vortex_playback_hw_spdif = {
 	.info =
 	    (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
 	     SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
@@ -94,7 +94,7 @@
 };
 
 #ifndef CHIP_AU8810
-static struct snd_pcm_hardware snd_vortex_playback_hw_wt = {
+static const struct snd_pcm_hardware snd_vortex_playback_hw_wt = {
 	.info = (SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_INTERLEAVED |
 		 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
-- 
1.9.1



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Make these const as they are only used in a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/ppc/pmac.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/ppc/pmac.c b/sound/ppc/pmac.c
index a5843fc..45f0295 100644
--- a/sound/ppc/pmac.c
+++ b/sound/ppc/pmac.c
@@ -509,7 +509,7 @@ static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec)
  * hw info
  */
 
-static struct snd_pcm_hardware snd_pmac_playback =
+static const struct snd_pcm_hardware snd_pmac_playback =
 {
 	.info =			(SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP |
@@ -528,7 +528,7 @@ static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec)
 	.periods_max =		PMAC_MAX_FRAGS,
 };
 
-static struct snd_pcm_hardware snd_pmac_capture =
+static const struct snd_pcm_hardware snd_pmac_capture =
 {
 	.info =			(SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP |
-- 
1.9.1

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Archived-At: <http://permalink.gmane.org/gmane.linux.alsa.devel/170785>

Make these const as they are only used in a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/isa/ad1816a/ad1816a_lib.c | 4 ++--
 sound/isa/es1688/es1688_lib.c   | 4 ++--
 sound/isa/es18xx.c              | 4 ++--
 sound/isa/gus/gus_pcm.c         | 4 ++--
 sound/isa/msnd/msnd.c           | 4 ++--
 sound/isa/sb/emu8000_pcm.c      | 2 +-
 sound/isa/sb/sb16_main.c        | 4 ++--
 sound/isa/sb/sb8_main.c         | 4 ++--
 sound/isa/wss/wss_lib.c         | 4 ++--
 9 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/sound/isa/ad1816a/ad1816a_lib.c b/sound/isa/ad1816a/ad1816a_lib.c
index 5c6df15..9232014 100644
--- a/sound/isa/ad1816a/ad1816a_lib.c
+++ b/sound/isa/ad1816a/ad1816a_lib.c
@@ -339,7 +339,7 @@ static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id)
 }
 
 
-static struct snd_pcm_hardware snd_ad1816a_playback = {
+static const struct snd_pcm_hardware snd_ad1816a_playback = {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID),
 	.formats =		(SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
@@ -358,7 +358,7 @@ static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id)
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_ad1816a_capture = {
+static const struct snd_pcm_hardware snd_ad1816a_capture = {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID),
 	.formats =		(SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
diff --git a/sound/isa/es1688/es1688_lib.c b/sound/isa/es1688/es1688_lib.c
index ec7e68b..f9c0662 100644
--- a/sound/isa/es1688/es1688_lib.c
+++ b/sound/isa/es1688/es1688_lib.c
@@ -526,7 +526,7 @@ static snd_pcm_uframes_t snd_es1688_capture_pointer(struct snd_pcm_substream *su
 
  */
 
-static struct snd_pcm_hardware snd_es1688_playback =
+static const struct snd_pcm_hardware snd_es1688_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID),
@@ -544,7 +544,7 @@ static snd_pcm_uframes_t snd_es1688_capture_pointer(struct snd_pcm_substream *su
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_es1688_capture =
+static const struct snd_pcm_hardware snd_es1688_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID),
diff --git a/sound/isa/es18xx.c b/sound/isa/es18xx.c
index 77023e4..cb9c9a1 100644
--- a/sound/isa/es18xx.c
+++ b/sound/isa/es18xx.c
@@ -838,7 +838,7 @@ static snd_pcm_uframes_t snd_es18xx_capture_pointer(struct snd_pcm_substream *su
 	return pos >> chip->dma1_shift;
 }
 
-static struct snd_pcm_hardware snd_es18xx_playback =
+static const struct snd_pcm_hardware snd_es18xx_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_RESUME |
@@ -858,7 +858,7 @@ static snd_pcm_uframes_t snd_es18xx_capture_pointer(struct snd_pcm_substream *su
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_es18xx_capture =
+static const struct snd_pcm_hardware snd_es18xx_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_RESUME |
diff --git a/sound/isa/gus/gus_pcm.c b/sound/isa/gus/gus_pcm.c
index 36e852f..131b289 100644
--- a/sound/isa/gus/gus_pcm.c
+++ b/sound/isa/gus/gus_pcm.c
@@ -650,7 +650,7 @@ static void snd_gf1_pcm_interrupt_dma_read(struct snd_gus_card * gus)
 	}
 }
 
-static struct snd_pcm_hardware snd_gf1_pcm_playback =
+static const struct snd_pcm_hardware snd_gf1_pcm_playback =
 {
 	.info =			SNDRV_PCM_INFO_NONINTERLEAVED,
 	.formats		= (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
@@ -668,7 +668,7 @@ static void snd_gf1_pcm_interrupt_dma_read(struct snd_gus_card * gus)
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_gf1_pcm_capture =
+static const struct snd_pcm_hardware snd_gf1_pcm_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID),
diff --git a/sound/isa/msnd/msnd.c b/sound/isa/msnd/msnd.c
index ae9562c..569897f 100644
--- a/sound/isa/msnd/msnd.c
+++ b/sound/isa/msnd/msnd.c
@@ -437,7 +437,7 @@ static void snd_msnd_capture_reset_queue(struct snd_msnd *chip,
 	}
 }
 
-static struct snd_pcm_hardware snd_msnd_playback = {
+static const struct snd_pcm_hardware snd_msnd_playback = {
 	.info =			SNDRV_PCM_INFO_MMAP |
 				SNDRV_PCM_INFO_INTERLEAVED |
 				SNDRV_PCM_INFO_MMAP_VALID |
@@ -456,7 +456,7 @@ static void snd_msnd_capture_reset_queue(struct snd_msnd *chip,
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_msnd_capture = {
+static const struct snd_pcm_hardware snd_msnd_capture = {
 	.info =			SNDRV_PCM_INFO_MMAP |
 				SNDRV_PCM_INFO_INTERLEAVED |
 				SNDRV_PCM_INFO_MMAP_VALID |
diff --git a/sound/isa/sb/emu8000_pcm.c b/sound/isa/sb/emu8000_pcm.c
index 9409827..8f34551 100644
--- a/sound/isa/sb/emu8000_pcm.c
+++ b/sound/isa/sb/emu8000_pcm.c
@@ -157,7 +157,7 @@ static int calc_rate_offset(int hz)
 /*
  */
 
-static struct snd_pcm_hardware emu8k_pcm_hw = {
+static const struct snd_pcm_hardware emu8k_pcm_hw = {
 #ifdef USE_NONINTERLEAVE
 	.info =			SNDRV_PCM_INFO_NONINTERLEAVED,
 #else
diff --git a/sound/isa/sb/sb16_main.c b/sound/isa/sb/sb16_main.c
index 6fc6325..3e39ba2 100644
--- a/sound/isa/sb/sb16_main.c
+++ b/sound/isa/sb/sb16_main.c
@@ -473,7 +473,7 @@ static snd_pcm_uframes_t snd_sb16_capture_pointer(struct snd_pcm_substream *subs
 
  */
 
-static struct snd_pcm_hardware snd_sb16_playback =
+static const struct snd_pcm_hardware snd_sb16_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID),
@@ -491,7 +491,7 @@ static snd_pcm_uframes_t snd_sb16_capture_pointer(struct snd_pcm_substream *subs
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_sb16_capture =
+static const struct snd_pcm_hardware snd_sb16_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID),
diff --git a/sound/isa/sb/sb8_main.c b/sound/isa/sb/sb8_main.c
index f5d8f2d..d45df5c 100644
--- a/sound/isa/sb/sb8_main.c
+++ b/sound/isa/sb/sb8_main.c
@@ -447,7 +447,7 @@ static snd_pcm_uframes_t snd_sb8_capture_pointer(struct snd_pcm_substream *subst
 
  */
 
-static struct snd_pcm_hardware snd_sb8_playback =
+static const struct snd_pcm_hardware snd_sb8_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID),
@@ -466,7 +466,7 @@ static snd_pcm_uframes_t snd_sb8_capture_pointer(struct snd_pcm_substream *subst
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_sb8_capture =
+static const struct snd_pcm_hardware snd_sb8_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID),
diff --git a/sound/isa/wss/wss_lib.c b/sound/isa/wss/wss_lib.c
index 29adb01..8a85204 100644
--- a/sound/isa/wss/wss_lib.c
+++ b/sound/isa/wss/wss_lib.c
@@ -1452,7 +1452,7 @@ static int snd_wss_probe(struct snd_wss *chip)
 
  */
 
-static struct snd_pcm_hardware snd_wss_playback =
+static const struct snd_pcm_hardware snd_wss_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID |
@@ -1472,7 +1472,7 @@ static int snd_wss_probe(struct snd_wss *chip)
 	.fifo_size =		0,
 };
 
-static struct snd_pcm_hardware snd_wss_capture =
+static const struct snd_pcm_hardware snd_wss_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID |
-- 
1.9.1


From - Thu Nov 08 21:40:11 2018
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From: Bhumika Goyal <bhumirks@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.alsa.devel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 09/12] ALSA: sh: make snd_pcm_hardware const
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Make these const as they are only used in a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/sh/aica.c         | 2 +-
 sound/sh/sh_dac_audio.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/sh/aica.c b/sound/sh/aica.c
index ab4802d..822608d 100644
--- a/sound/sh/aica.c
+++ b/sound/sh/aica.c
@@ -211,7 +211,7 @@ static void aica_chn_halt(void)
 }
 
 /* ALSA code below */
-static struct snd_pcm_hardware snd_pcm_aica_playback_hw = {
+static const struct snd_pcm_hardware snd_pcm_aica_playback_hw = {
 	.info = (SNDRV_PCM_INFO_NONINTERLEAVED),
 	.formats =
 	    (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE |
diff --git a/sound/sh/sh_dac_audio.c b/sound/sh/sh_dac_audio.c
index c1e00ed..a077f1c 100644
--- a/sound/sh/sh_dac_audio.c
+++ b/sound/sh/sh_dac_audio.c
@@ -93,7 +93,7 @@ static void dac_audio_set_rate(struct snd_sh_dac *chip)
 
 /* PCM INTERFACE */
 
-static struct snd_pcm_hardware snd_sh_dac_pcm_hw = {
+static const struct snd_pcm_hardware snd_sh_dac_pcm_hw = {
 	.info			= (SNDRV_PCM_INFO_MMAP |
 					SNDRV_PCM_INFO_MMAP_VALID |
 					SNDRV_PCM_INFO_INTERLEAVED |
-- 
1.9.1



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Newsgroups: gmane.linux.alsa.devel,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 05/12] ALSA: mips: make snd_pcm_hardware const
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Make these const as they are only used in a copy operation.
Done using Coccinelle

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/mips/hal2.c       | 2 +-
 sound/mips/sgio2audio.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/mips/hal2.c b/sound/mips/hal2.c
index 3318c15..367d6c37 100644
--- a/sound/mips/hal2.c
+++ b/sound/mips/hal2.c
@@ -496,7 +496,7 @@ static void hal2_free_dmabuf(struct hal2_codec *codec)
 		       DMA_ATTR_NON_CONSISTENT);
 }
 
-static struct snd_pcm_hardware hal2_pcm_hw = {
+static const struct snd_pcm_hardware hal2_pcm_hw = {
 	.info = (SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_MMAP_VALID |
 		 SNDRV_PCM_INFO_INTERLEAVED |
diff --git a/sound/mips/sgio2audio.c b/sound/mips/sgio2audio.c
index 0ebc1c3..603892f 100644
--- a/sound/mips/sgio2audio.c
+++ b/sound/mips/sgio2audio.c
@@ -532,7 +532,7 @@ static irqreturn_t snd_sgio2audio_error_isr(int irq, void *dev_id)
 
 /* PCM part */
 /* PCM hardware definition */
-static struct snd_pcm_hardware snd_sgio2audio_pcm_hw = {
+static const struct snd_pcm_hardware snd_sgio2audio_pcm_hw = {
 	.info = (SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_MMAP_VALID |
 		 SNDRV_PCM_INFO_INTERLEAVED |
-- 
1.9.1


From - Thu Nov 08 21:40:11 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.alsa.devel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 10/12] ALSA: sparc: make snd_pcm_hardware const
Date: Thu, 17 Aug 2017 14:45:58 +0530
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Make these const as they are only used in a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/sparc/amd7930.c | 2 +-
 sound/sparc/cs4231.c  | 4 ++--
 sound/sparc/dbri.c    | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/sparc/amd7930.c b/sound/sparc/amd7930.c
index 35c1f6a..a6864fd 100644
--- a/sound/sparc/amd7930.c
+++ b/sound/sparc/amd7930.c
@@ -666,7 +666,7 @@ static snd_pcm_uframes_t snd_amd7930_capture_pointer(struct snd_pcm_substream *s
 }
 
 /* Playback and capture have identical properties.  */
-static struct snd_pcm_hardware snd_amd7930_pcm_hw =
+static const struct snd_pcm_hardware snd_amd7930_pcm_hw =
 {
 	.info			= (SNDRV_PCM_INFO_MMAP |
 				   SNDRV_PCM_INFO_MMAP_VALID |
diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index 3d7d425..f5192b3 100644
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -1089,7 +1089,7 @@ static int snd_cs4231_probe(struct snd_cs4231 *chip)
 	return 0;		/* all things are ok.. */
 }
 
-static struct snd_pcm_hardware snd_cs4231_playback = {
+static const struct snd_pcm_hardware snd_cs4231_playback = {
 	.info			= SNDRV_PCM_INFO_MMAP |
 				  SNDRV_PCM_INFO_INTERLEAVED |
 				  SNDRV_PCM_INFO_MMAP_VALID |
@@ -1113,7 +1113,7 @@ static int snd_cs4231_probe(struct snd_cs4231 *chip)
 	.periods_max		= 1024,
 };
 
-static struct snd_pcm_hardware snd_cs4231_capture = {
+static const struct snd_pcm_hardware snd_cs4231_capture = {
 	.info			= SNDRV_PCM_INFO_MMAP |
 				  SNDRV_PCM_INFO_INTERLEAVED |
 				  SNDRV_PCM_INFO_MMAP_VALID |
diff --git a/sound/sparc/dbri.c b/sound/sparc/dbri.c
index 52063b2..72b6c4a 100644
--- a/sound/sparc/dbri.c
+++ b/sound/sparc/dbri.c
@@ -1980,7 +1980,7 @@ static irqreturn_t snd_dbri_interrupt(int irq, void *dev_id)
 /****************************************************************************
 		PCM Interface
 ****************************************************************************/
-static struct snd_pcm_hardware snd_dbri_pcm_hw = {
+static const struct snd_pcm_hardware snd_dbri_pcm_hw = {
 	.info		= SNDRV_PCM_INFO_MMAP |
 			  SNDRV_PCM_INFO_INTERLEAVED |
 			  SNDRV_PCM_INFO_BLOCK_TRANSFER |
-- 
1.9.1



From - Thu Nov 08 21:40:11 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Bhumika Goyal <bhumirks@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.alsa.devel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 11/12] ALSA: usb: make snd_pcm_hardware const
Date: Thu, 17 Aug 2017 14:45:59 +0530
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Make this const as it is only used in a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/usb/pcm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 9aa5b18..a4f3390 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -857,7 +857,7 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
 	return ret;
 }
 
-static struct snd_pcm_hardware snd_usb_hardware =
+static const struct snd_pcm_hardware snd_usb_hardware =
 {
 	.info =			SNDRV_PCM_INFO_MMAP |
 				SNDRV_PCM_INFO_MMAP_VALID |
-- 
1.9.1



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Subject: [PATCH 12/12] ALSA: parisc: make snd_pcm_hardware const
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Make these const as they are only used in a copy operation.
Done using Coccinelle

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 sound/parisc/harmony.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/parisc/harmony.c b/sound/parisc/harmony.c
index 5911eb3..cb2bc54 100644
--- a/sound/parisc/harmony.c
+++ b/sound/parisc/harmony.c
@@ -260,7 +260,7 @@
 	return HARMONY_SR_44KHZ;
 }
 
-static struct snd_pcm_hardware snd_harmony_playback =
+static const struct snd_pcm_hardware snd_harmony_playback =
 {
 	.info =	(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 
 		 SNDRV_PCM_INFO_JOINT_DUPLEX | SNDRV_PCM_INFO_MMAP_VALID |
@@ -281,7 +281,7 @@
 	.fifo_size = 0,
 };
 
-static struct snd_pcm_hardware snd_harmony_capture =
+static const struct snd_pcm_hardware snd_harmony_capture =
 {
         .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
                  SNDRV_PCM_INFO_JOINT_DUPLEX | SNDRV_PCM_INFO_MMAP_VALID |
-- 
1.9.1



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On Thu, 17 Aug 2017 11:15:48 +0200,
Bhumika Goyal wrote:
> 
> Make these const.
> 
> Bhumika Goyal (12):
>   ALSA: arm: make snd_pcm_hardware const
>   ALSA: atmel: make snd_pcm_hardware const
>   ALSA: drivers: make snd_pcm_hardware const
>   ALSA: isa: make snd_pcm_hardware const
>   ALSA: mips: make snd_pcm_hardware const
>   ALSA: pci: make snd_pcm_hardware const
>   ALSA: pcmcia: make snd_pcm_hardware const
>   ALSA: ppc: make snd_pcm_hardware const
>   ALSA: sh: make snd_pcm_hardware const
>   ALSA: sparc: make snd_pcm_hardware const
>   ALSA: usb: make snd_pcm_hardware const
>   ALSA: parisc: make snd_pcm_hardware const

Applied all patches now.  Thanks.


Takashi


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From: Meelis Roos <mroos@linux.ee>
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Subject: WARNING: workqueue cpumask: online intersect > possible intersect
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I get the following warning in dmegs on my RP3440 with 4.13-rc5+git:
WARNING: workqueue cpumask: online intersect > possible intersect

It's a RP3440 with 4 CPU cores and CONFIG_NR_CPUS=4.

Is it something I have misconfigured, or something harmless, or 
something worth for the developers of this code?

-- 
Meelis Roos (mroos@linux.ee)
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Today I compiled 4.13-rc5+git on my farm on on one of my parisc boxes I 
got the following warning in dmesg:

rodata_test: start of .rodata is not page size aligned

Config:
#
# Automatically generated file; DO NOT EDIT.
# Linux/parisc 4.13.0-rc5 Kernel Configuration
#
CONFIG_PARISC=y
CONFIG_CPU_BIG_ENDIAN=y
CONFIG_MMU=y
CONFIG_STACK_GROWSUP=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_PGTABLE_LEVELS=3
CONFIG_SYS_SUPPORTS_HUGETLBFS=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE="hppa64-linux-"
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_DEFAULT_HOSTNAME="none"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_FHANDLE=y
# CONFIG_USELIB is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_CLOCKEVENTS=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ is not set
CONFIG_HIGH_RES_TIMERS=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TINY_SRCU=y
# CONFIG_TASKS_RCU is not set
# CONFIG_RCU_STALL_COMMON is not set
# CONFIG_RCU_NEED_SEGCBLIST is not set
# CONFIG_BUILD_BIN2C is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=17
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_GENERIC_SCHED_CLOCK=y
CONFIG_CGROUPS=y
# CONFIG_MEMCG is not set
# CONFIG_BLK_CGROUP is not set
# CONFIG_CGROUP_SCHED is not set
# CONFIG_CGROUP_PIDS is not set
# CONFIG_CGROUP_RDMA is not set
# CONFIG_CGROUP_FREEZER is not set
# CONFIG_CGROUP_HUGETLB is not set
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
# CONFIG_CGROUP_DEBUG is not set
# CONFIG_SOCK_CGROUP_DATA is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW=y
CONFIG_BPF=y
# CONFIG_EXPERT is not set
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_POSIX_TIMERS=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_ABSOLUTE_PERCPU is not set
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
# CONFIG_BPF_SYSCALL is not set
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_USERFAULTFD=y
CONFIG_PCI_QUIRKS=y
CONFIG_MEMBARRIER=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
# CONFIG_PC104 is not set

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
CONFIG_SLAB_MERGE_DEFAULT=y
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SYSTEM_DATA_VERIFICATION is not set
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_THIN_ARCHIVES=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_HASH=y
# CONFIG_ISA_BUS_API is not set
CONFIG_CLONE_BACKWARDS=y
CONFIG_ARCH_NO_COHERENT_DMA_MMAP=y
CONFIG_CPU_NO_EFFICIENT_FFS=y
# CONFIG_HAVE_ARCH_VMAP_STACK is not set
# CONFIG_ARCH_OPTIONAL_KERNEL_RWX is not set
# CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
# CONFIG_ARCH_HAS_STRICT_MODULE_RWX is not set
# CONFIG_REFCOUNT_FULL is not set

#
# GCOV-based kernel profiling
#
# CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
# CONFIG_MODULE_COMPRESS is not set
CONFIG_TRIM_UNUSED_KSYMS=y
CONFIG_INIT_ALL_POSSIBLE=y
CONFIG_BLOCK=y
CONFIG_BLK_SCSI_REQUEST=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_CMDLINE_PARSER is not set
# CONFIG_BLK_WBT is not set
# CONFIG_BLK_SED_OPAL is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_BLOCK_COMPAT=y
CONFIG_BLK_MQ_PCI=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_DEADLINE is not set
CONFIG_IOSCHED_CFQ=y
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_MQ_IOSCHED_DEADLINE is not set
# CONFIG_MQ_IOSCHED_KYBER is not set
# CONFIG_IOSCHED_BFQ is not set
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_FREEZER is not set

#
# Processor type and features
#
# CONFIG_PA7000 is not set
# CONFIG_PA7100LC is not set
# CONFIG_PA7200 is not set
# CONFIG_PA7300LC is not set
CONFIG_PA8X00=y
CONFIG_PA20=y
CONFIG_PREFETCH=y
# CONFIG_MLONGCALLS is not set
CONFIG_64BIT=y
CONFIG_PARISC_PAGE_SIZE_4KB=y
# CONFIG_PARISC_PAGE_SIZE_16KB is not set
# CONFIG_PARISC_PAGE_SIZE_64KB is not set
# CONFIG_SMP is not set
CONFIG_IRQSTACKS=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_NODES_SHIFT=3
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_SCHED_HRTICK=y
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_NO_BOOTMEM=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
# CONFIG_ARCH_WANTS_THP_SWAP is not set
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
# CONFIG_CMA is not set
# CONFIG_ZPOOL is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSMALLOC is not set
CONFIG_MAX_STACK_SIZE_MB=80
# CONFIG_IDLE_PAGE_TRACKING is not set
# CONFIG_PERCPU_STATS is not set
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_AUDIT_ARCH=y

#
# Bus options (PCI, PCMCIA, EISA, GSC, ISA)
#
# CONFIG_GSC is not set
CONFIG_PCI=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_PCI_BUS_ADDR_T_64BIT=y
CONFIG_PCI_MSI=y
# CONFIG_PCI_MSI_IRQ_DOMAIN is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
# CONFIG_HOTPLUG_PCI is not set

#
# DesignWare PCI Core Support
#

#
# PCI host controller drivers
#

#
# PCI Endpoint
#
# CONFIG_PCI_ENDPOINT is not set

#
# PCI switch controller drivers
#
# CONFIG_PCI_SW_SWITCHTEC is not set
CONFIG_PCI_LBA=y
CONFIG_IOSAPIC=y
CONFIG_IOMMU_SBA=y
CONFIG_IOMMU_HELPER=y
# CONFIG_PCCARD is not set

#
# PA-RISC specific drivers
#
CONFIG_SUPERIO=y
CONFIG_CHASSIS_LCD_LED=y
CONFIG_PDC_CHASSIS=y
CONFIG_PDC_CHASSIS_WARN=y
CONFIG_PDC_STABLE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_TLS is not set
CONFIG_XFRM=y
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=m
# CONFIG_IP_MROUTE is not set
CONFIG_SYN_COOKIES=y
# CONFIG_NET_UDP_TUNNEL is not set
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=m
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
CONFIG_IPV6_MIP6=m
# CONFIG_INET6_XFRM_TUNNEL is not set
CONFIG_INET6_TUNNEL=m
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_BEET is not set
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_FOU is not set
# CONFIG_IPV6_FOU_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NET_PTP_CLASSIFY is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
CONFIG_NETLINK_DIAG=m
# CONFIG_MPLS is not set
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
# CONFIG_NET_NCSI is not set
# CONFIG_CGROUP_NET_PRIO is not set
# CONFIG_CGROUP_NET_CLASSID is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
# CONFIG_STREAM_PARSER is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
# CONFIG_PSAMPLE is not set
# CONFIG_NET_IFE is not set
CONFIG_LWTUNNEL=y
# CONFIG_LWTUNNEL_BPF is not set
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
# CONFIG_NET_DEVLINK is not set
CONFIG_MAY_USE_DEVLINK=y

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
# CONFIG_DMA_SHARED_BUFFER is not set

#
# Bus devices
#
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
# CONFIG_BLK_DEV is not set
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_NVME_FC is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_SRAM is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#

#
# Altera FPGA firmware download module
#

#
# Intel MIC Bus Driver
#

#
# SCIF Bus Driver
#

#
# VOP Bus Driver
#

#
# Intel MIC Host Driver
#

#
# Intel MIC Card Driver
#

#
# SCIF Driver
#

#
# Intel MIC Coprocessor State Management (COSM) Drivers
#

#
# VOP Driver
#
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
# CONFIG_CXL_BASE is not set
# CONFIG_CXL_AFU_DRIVER_OPS is not set
# CONFIG_CXL_LIB is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_PROC_FS is not set

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_SMARTPQI is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_MACSEC is not set
CONFIG_NETCONSOLE=y
CONFIG_NETPOLL=y
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_TUN=m
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
# CONFIG_NLMON is not set
# CONFIG_ARCNET is not set

#
# CAIF transport drivers
#

#
# Distributed Switch Architecture drivers
#
CONFIG_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_AGERE is not set
# CONFIG_NET_VENDOR_ALACRITECH is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_ALTERA_TSE is not set
# CONFIG_NET_VENDOR_AMAZON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_AURORA is not set
# CONFIG_NET_CADENCE is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CAVIUM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=y
CONFIG_TULIP_MWI=y
CONFIG_TULIP_MMIO=y
CONFIG_TULIP_NAPI=y
CONFIG_TULIP_NAPI_HW_MITIGATION=y
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EZCHIP is not set
# CONFIG_NET_VENDOR_EXAR is not set
# CONFIG_NET_VENDOR_HP is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_PACKET_ENGINE is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RENESAS is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_ROCKER is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_NET_VENDOR_SYNOPSYS is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_MDIO_DEVICE is not set
# CONFIG_MDIO_BUS is not set
# CONFIG_PHYLIB is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set

#
# Host-side USB support is needed for USB Network Adapter support
#
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set
# CONFIG_NVM is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
# CONFIG_RMI4_CORE is not set

#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
CONFIG_DEVMEM=y
# CONFIG_DEVKMEM is not set

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
# CONFIG_SERIAL_8250_FSL is not set
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_RT288X is not set
# CONFIG_SERIAL_8250_MOXA is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_UARTLITE is not set
# CONFIG_PDC_CONSOLE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_XILLYBUS is not set

#
# I2C support
#
# CONFIG_I2C is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
# CONFIG_PPS is not set

#
# PTP clock support
#
# CONFIG_PTP_1588_CLOCK is not set

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
# CONFIG_POWER_AVS is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_DRM is not set

#
# ACP (Audio CoProcessor) Configuration
#
# CONFIG_DRM_LIB_RANDOM is not set

#
# Frame buffer Devices
#
# CONFIG_FB is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
# CONFIG_VGASTATE is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=160
CONFIG_DUMMY_CONSOLE_ROWS=64
CONFIG_STI_CONSOLE=y
# CONFIG_SOUND is not set

#
# HID support
#
# CONFIG_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#

#
# SPI RTC drivers
#

#
# SPI and I2C RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_RTC_DRV_FTRTC010 is not set

#
# HID Sensor RTC drivers
#
# CONFIG_DMADEVICES is not set

#
# DMABUF options
#
# CONFIG_SYNC_FILE is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VIRT_DRIVERS is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV_TSCPAGE is not set
# CONFIG_STAGING is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
# CONFIG_ATMEL_PIT is not set
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set

#
# Rpmsg drivers
#

#
# SOC (System On Chip) specific Drivers
#

#
# Broadcom SoC drivers
#

#
# i.MX SoC drivers
#
# CONFIG_SUNXI_SRAM is not set
# CONFIG_SOC_TI is not set
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
CONFIG_ARM_GIC_MAX_NR=1
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set
# CONFIG_RAS is not set

#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_DAX is not set
CONFIG_NVMEM=y
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set

#
# FPGA Configuration Support
#
# CONFIG_FPGA is not set

#
# FSI support
#
# CONFIG_FSI is not set

#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_ENCRYPTION is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_FS_DAX is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
CONFIG_MANDATORY_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
# CONFIG_CONFIGFS_FS is not set
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
# CONFIG_NLS is not set

#
# Kernel hacking
#

#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set

#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_PAGE_OWNER is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
# CONFIG_FRAME_POINTER is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_DEBUG_KERNEL=y

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_PAGE_POISONING is not set
CONFIG_DEBUG_RODATA_TEST=y
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
CONFIG_DEBUG_STACK_USAGE=y
# CONFIG_DEBUG_VM is not set
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Lockups and Hangs
#
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
# CONFIG_DETECT_HUNG_TASK is not set
CONFIG_WQ_WATCHDOG=y
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHED_INFO is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_STACKTRACE is not set
CONFIG_WARN_ALL_UNSEEDED_RANDOM=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_PI_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
# CONFIG_PROVE_RCU is not set
# CONFIG_TORTURE_TEST is not set
# CONFIG_RCU_PERF_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set

#
# Runtime Testing
#
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_TEST_SORT is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_HASH is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_SYSCTL is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_MEMTEST is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# CONFIG_TEST_KMOD is not set
# CONFIG_SAMPLES is not set
# CONFIG_ARCH_WANTS_UBSAN_NO_NULL is not set
CONFIG_UBSAN=y
CONFIG_UBSAN_ALIGNMENT=y
CONFIG_UBSAN_NULL=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_SECCOMP is not set

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HARDENED_USERCOPY=y
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
# CONFIG_CRYPTO_RSA is not set
# CONFIG_CRYPTO_DH is not set
# CONFIG_CRYPTO_ECDH is not set
# CONFIG_CRYPTO_MANAGER is not set
# CONFIG_CRYPTO_MANAGER2 is not set
# CONFIG_CRYPTO_USER is not set
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_MCRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
# CONFIG_CRYPTO_SEQIV is not set
# CONFIG_CRYPTO_ECHAINIV is not set

#
# Block modes
#
# CONFIG_CRYPTO_CBC is not set
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_KEYWRAP is not set

#
# Hash modes
#
# CONFIG_CRYPTO_CMAC is not set
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRCT10DIF is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_POLY1305 is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_SHA3 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_TI is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_CHACHA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_DRBG_MENU is not set
# CONFIG_CRYPTO_JITTERENTROPY is not set
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_USER_API_RNG is not set
# CONFIG_CRYPTO_USER_API_AEAD is not set
# CONFIG_CRYPTO_HW is not set

#
# Certificates for signature checking
#
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
# CONFIG_HAVE_ARCH_BITREVERSE is not set
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IO=y
# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC4 is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
# CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
# CONFIG_RANDOM32_SELFTEST is not set
# CONFIG_XZ_DEC is not set
# CONFIG_XZ_DEC_BCJ is not set
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DQL=y
CONFIG_NLATTR=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
# CONFIG_IRQ_POLL is not set
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_SG_SPLIT is not set
CONFIG_SG_POOL=y
# CONFIG_ARCH_HAS_SG_CHAIN is not set
CONFIG_SBITMAP=y

-- 
Meelis Roos (mroos@linux.ee)
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc architecture fixes for v4.13-rc6
Date: Thu, 17 Aug 2017 20:28:13 +0200
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Hi Linus,

please pull two small patches from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.13-5

Changelog:

- Fix PCI memory bar assignments with 64-bit kernels on machines with Dino/Cujo
  PCI chipsets. This makes PCI graphic cards work on such machines (from Thomas
  Bogendoerfer).

- Fix documentation to be more clear about the difference between %pF and %pS
  printk format usage. There are still many places in the kernel which have it
  wrong (from Petr Mladek, Sergey Senozhatsky & me).

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (1):
      printk-formats.txt: Better describe the difference between %pS and %pF

Thomas Bogendoerfer (1):
      parisc: pci memory bar assignment fails with 64bit kernels on dino/cujo

 Documentation/printk-formats.txt | 19 +++++++++++--------
 drivers/parisc/dino.c            |  2 +-
 2 files changed, 12 insertions(+), 9 deletions(-)
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Subject: Re: hppa: rodata_test: start of .rodata is not page size aligned
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On 17.08.2017 20:15, Meelis Roos wrote:
> Today I compiled 4.13-rc5+git on my farm on on one of my parisc boxes I 
> got the following warning in dmesg:
> 
> rodata_test: start of .rodata is not page size aligned

In arch/parisc/kernel/vmlinux.lds.S we have:
	RO_DATA_SECTION(8)
so it's 8-byte aligned, and directly behind the linkage tables (on 64bit)
and before the exception tables which all will be mapped read-only as well.

I see no reason why we should waste space by aligning it on PAGE_SIZE boundary.
I'd say this test result is in our case bogus...

Helge 
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Greetings from Mr. Abdul Karim

 Assalamu`Alaikum.

My Name is Mr. Abdul Karim I am a banker by profession. I'm  from
Ouagadougou, Burkinan Faso, West Africa. My reason for contacting
youbis to transfer an abandoned $15.5M to your account.

The owner of this fund died since 2004  with his Next Of Kin. I want
to present you to the bank as the Next of  Kin/beneficiary of this
fund.

Further details of the transaction shall be forwarded to you as soonas
I receive your return mail  indicating your interest.

 1) YOUR FULL NAME...............................
(2) YOUR AGE AND SEX............................
(3) YOUR CONTACT ADDRESS..................
(4) YOUR PRIVATE PHONE N0..........
(5) FAX NUMBER..............
(6) YOUR COUNTRY OF ORIGIN..................
(7) YOUR OCCUPATION.........................

Have a great day, .
Mr. Abdul Karim
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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git boot-devel
head:   fe72f15c9c037339c2b7e177698216c3d4cccc7a
commit: 76e65d530d367f9234495a84bef2efecea0fc6b9 [8/10] Define 32-bit uLong type for parisc to avoid usage of __umoddi3()
config: parisc-allmodconfig (attached as .config)
compiler: hppa-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 76e65d530d367f9234495a84bef2efecea0fc6b9
        # save the attached .config to linux build tree
        make.cross ARCH=parisc 

All warnings (new ones prefixed by >>):

   In file included from include/linux/printk.h:6:0,
                    from include/linux/kernel.h:13,
                    from include/linux/list.h:8,
                    from include/linux/module.h:9,
                    from fs//isofs/compress.c:19:
   fs//isofs/compress.c: In function 'zisofs_uncompress_block':
>> include/linux/kern_levels.h:4:18: warning: format '%ld' expects argument of type 'long int', but argument 6 has type 'uLong {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/kern_levels.h:14:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
>> fs//isofs/compress.c:158:13: note: in expansion of macro 'KERN_DEBUG'
         printk(KERN_DEBUG
                ^~~~~~~~~~
   include/linux/kern_levels.h:4:18: warning: format '%ld' expects argument of type 'long int', but argument 7 has type 'uLong {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/kern_levels.h:14:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
>> fs//isofs/compress.c:158:13: note: in expansion of macro 'KERN_DEBUG'
         printk(KERN_DEBUG
                ^~~~~~~~~~
--
   fs//jffs2/compr_zlib.c: In function 'jffs2_zlib_compress':
>> <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'uLong {aka unsigned int}' [-Wformat=]
>> fs//jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
>> fs//jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
>> fs//jffs2/compr_zlib.c:99:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "calling deflate with avail_in %ld, avail_out %ld\n",
      ^~~~~~~~~
   <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'uLong {aka unsigned int}' [-Wformat=]
>> fs//jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
>> fs//jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
>> fs//jffs2/compr_zlib.c:99:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "calling deflate with avail_in %ld, avail_out %ld\n",
      ^~~~~~~~~
>> <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'uLong {aka unsigned int}' [-Wformat=]
>> fs//jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
>> fs//jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs//jffs2/compr_zlib.c:102:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "deflate returned with avail_in %ld, avail_out %ld, total_in %ld, total_out %ld\n",
      ^~~~~~~~~
   <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'uLong {aka unsigned int}' [-Wformat=]
>> fs//jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
>> fs//jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs//jffs2/compr_zlib.c:102:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "deflate returned with avail_in %ld, avail_out %ld, total_in %ld, total_out %ld\n",
      ^~~~~~~~~
   <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'uLong {aka unsigned int}' [-Wformat=]
>> fs//jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
>> fs//jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs//jffs2/compr_zlib.c:102:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "deflate returned with avail_in %ld, avail_out %ld, total_in %ld, total_out %ld\n",
      ^~~~~~~~~
   <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 6 has type 'uLong {aka unsigned int}' [-Wformat=]
>> fs//jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
>> fs//jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs//jffs2/compr_zlib.c:102:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "deflate returned with avail_in %ld, avail_out %ld, total_in %ld, total_out %ld\n",
      ^~~~~~~~~
>> <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'uLong {aka unsigned int}' [-Wformat=]
>> fs//jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
>> fs//jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs//jffs2/compr_zlib.c:124:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "zlib compressed %ld bytes into %ld; failing\n",
      ^~~~~~~~~
   <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'uLong {aka unsigned int}' [-Wformat=]
>> fs//jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
--
   In file included from include/linux/printk.h:6:0,
                    from include/linux/kernel.h:13,
                    from include/linux/list.h:8,
                    from include/linux/module.h:9,
                    from fs/isofs/compress.c:19:
   fs/isofs/compress.c: In function 'zisofs_uncompress_block':
>> include/linux/kern_levels.h:4:18: warning: format '%ld' expects argument of type 'long int', but argument 6 has type 'uLong {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/kern_levels.h:14:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
   fs/isofs/compress.c:158:13: note: in expansion of macro 'KERN_DEBUG'
         printk(KERN_DEBUG
                ^~~~~~~~~~
   include/linux/kern_levels.h:4:18: warning: format '%ld' expects argument of type 'long int', but argument 7 has type 'uLong {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/kern_levels.h:14:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
   fs/isofs/compress.c:158:13: note: in expansion of macro 'KERN_DEBUG'
         printk(KERN_DEBUG
                ^~~~~~~~~~
--
   fs/jffs2/compr_zlib.c: In function 'jffs2_zlib_compress':
>> <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'uLong {aka unsigned int}' [-Wformat=]
   fs/jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
   fs/jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs/jffs2/compr_zlib.c:99:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "calling deflate with avail_in %ld, avail_out %ld\n",
      ^~~~~~~~~
   <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'uLong {aka unsigned int}' [-Wformat=]
   fs/jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
   fs/jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs/jffs2/compr_zlib.c:99:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "calling deflate with avail_in %ld, avail_out %ld\n",
      ^~~~~~~~~
>> <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'uLong {aka unsigned int}' [-Wformat=]
   fs/jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
   fs/jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs/jffs2/compr_zlib.c:102:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "deflate returned with avail_in %ld, avail_out %ld, total_in %ld, total_out %ld\n",
      ^~~~~~~~~
   <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'uLong {aka unsigned int}' [-Wformat=]
   fs/jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
   fs/jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs/jffs2/compr_zlib.c:102:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "deflate returned with avail_in %ld, avail_out %ld, total_in %ld, total_out %ld\n",
      ^~~~~~~~~
   <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'uLong {aka unsigned int}' [-Wformat=]
   fs/jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
   fs/jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs/jffs2/compr_zlib.c:102:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "deflate returned with avail_in %ld, avail_out %ld, total_in %ld, total_out %ld\n",
      ^~~~~~~~~
   <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 6 has type 'uLong {aka unsigned int}' [-Wformat=]
   fs/jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
   fs/jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs/jffs2/compr_zlib.c:102:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "deflate returned with avail_in %ld, avail_out %ld, total_in %ld, total_out %ld\n",
      ^~~~~~~~~
>> <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'uLong {aka unsigned int}' [-Wformat=]
   fs/jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
   fs/jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs/jffs2/compr_zlib.c:124:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "zlib compressed %ld bytes into %ld; failing\n",
      ^~~~~~~~~
   <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'uLong {aka unsigned int}' [-Wformat=]
   fs/jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
   fs/jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs/jffs2/compr_zlib.c:124:3: note: in expansion of macro 'jffs2_dbg'
      jffs2_dbg(1, "zlib compressed %ld bytes into %ld; failing\n",
      ^~~~~~~~~
>> <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'uLong {aka unsigned int}' [-Wformat=]
   fs/jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
   fs/jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs/jffs2/compr_zlib.c:130:2: note: in expansion of macro 'jffs2_dbg'
     jffs2_dbg(1, "zlib compressed %ld bytes into %ld\n",
     ^~~~~~~~~
   <command-line>:0:16: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'uLong {aka unsigned int}' [-Wformat=]
   fs/jffs2/compr_zlib.c:17:21: note: in expansion of macro 'KBUILD_MODNAME'
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
                        ^~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:126:35: note: in expansion of macro 'pr_fmt'
      __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
                                      ^~~~~~
   include/linux/printk.h:333:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^~~~~~~~~~~~~~~~
   fs/jffs2/debug.h:69:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__); \
      ^~~~~~~~
   fs/jffs2/compr_zlib.c:130:2: note: in expansion of macro 'jffs2_dbg'
     jffs2_dbg(1, "zlib compressed %ld bytes into %ld\n",
     ^~~~~~~~~

vim +4 include/linux/kern_levels.h

314ba352 Joe Perches 2012-07-30  3  
04d2c8c8 Joe Perches 2012-07-30 @4  #define KERN_SOH	"\001"		/* ASCII Start Of Header */
04d2c8c8 Joe Perches 2012-07-30  5  #define KERN_SOH_ASCII	'\001'
04d2c8c8 Joe Perches 2012-07-30  6  

:::::: The code at line 4 was first introduced by commit
:::::: 04d2c8c83d0e3ac5f78aeede51babb3236200112 printk: convert the format for KERN_<LEVEL> to a 2 byte pattern

:::::: TO: Joe Perches <joe@perches.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From - Thu Nov 08 21:40:12 2018
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From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.network
Subject: [PATCH 3/5] net: de4x5: constify eisa_device_id
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Xref: news.gmane.org gmane.linux.ports.parisc:27699 gmane.linux.kernel:2552826 gmane.linux.network:486430
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/27699>

eisa_device_id are not supposed to change at runtime. All functions
working with eisa_device_id provided by <linux/eisa.h> work with
const eisa_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/net/ethernet/dec/tulip/de4x5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index 47be501..0affee9 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -2094,7 +2094,7 @@ static int de4x5_eisa_remove(struct device *device)
 	return 0;
 }
 
-static struct eisa_device_id de4x5_eisa_ids[] = {
+static const struct eisa_device_id de4x5_eisa_ids[] = {
         { "DEC4250", 0 },	/* 0 is the board name index... */
         { "" }
 };
-- 
2.7.4

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mx3210 login: systemd-logind[4461]: New seat seat0.
systemd-logind[4461]: Failed to start user service, ignoring: Unknown unit: user@0.service
systemd-logind[4461]: Failed to start user service, ignoring: Unknown unit: user@110.service
Backtrace:
[<00000000402f316c>] compat_get_fd_set+0x5c/0x78
[<00000000402f3cac>] compat_core_sys_select+0x1cc/0x300
[<00000000402f52dc>] compat_SyS_select+0x144/0x1a0
[<0000000040155fe4>] syscall_exit+0x0/0x14


Kernel Fault: Code=26 (Data memory access rights trap) regs=00000002234b84e0 (Addr=0000000000000000)
CPU: 1 PID: 21167 Comm: polyimport Not tainted 4.13.0-rc5+ #1
task: 0000000223d74b50 task.stack: 00000002234b8000

YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001101111111100001111 Not tainted
r00-03 000000ff0806ff0f 00000002234b8420 00000000402f316c 00000002234b84a0
r04-07 000000004071c960 00000002234b82b8 00000002234b8218 0000000000000100
r08-11 0000000000000004 0000000000000100 00000000f3780588 0000000000000000
r12-15 0000000000000000 00000002234b8148 0000000000000000 00000002234b8218
r16-19 0000000000000000 000000000002f03c 000000000002f030 0000000000000000
r20-23 0000000000000100 0000000000000000 00000002234b8148 0000000000000000
r24-27 0000000000000100 0000000000000000 0000000000000000 000000004071c960
r28-31 0000000000000000 00000002234b8470 00000002234b84e0 0000000000000000
sr00-03 0000000003f15000 0000000003f15000 0000000003f15000 0000000003f15000
sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000406a4718 00000000406a471c
IIR: 0ff312c0 ISR: 0000000000000000 IOR: 0000000000000000
CPU: 1 CR30: 00000002234b8000 CR31: b33e06ff0008e07f
ORIG_R28: 0000000000000040
IAOQ[0]: memset+0x68/0xd8
IAOQ[1]: memset+0x6c/0xd8
RP(r2): compat_get_fd_set+0x5c/0x78
Backtrace:
[<00000000402f316c>] compat_get_fd_set+0x5c/0x78
[<00000000402f3cac>] compat_core_sys_select+0x1cc/0x300
[<00000000402f52dc>] compat_SyS_select+0x144/0x1a0
[<0000000040155fe4>] syscall_exit+0x0/0x14

Kernel panic - not syncing: Kernel Fault
---[ end Kernel panic - not syncing: Kernel Fault

Dave
--
John David Anglin	dave.anglin@bell.net



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Subject: [PATCH] parisc: parport_gsc: constify parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work
with
const parisc_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/parport/parport_gsc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
index 3858b87..8be1a0c 100644
--- a/drivers/parport/parport_gsc.c
+++ b/drivers/parport/parport_gsc.c
@@ -403,7 +403,7 @@ static int parport_remove_chip(struct parisc_device *dev)
 	return 0;
 }
 
-static struct parisc_device_id parport_tbl[] = {
+static const struct parisc_device_id parport_tbl[] = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x74 },
 	{ 0, }
 };
-- 
2.7.4

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From - Thu Nov 08 21:40:12 2018
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Subject: [PATCH 0/8] constify parisc parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work with
const parisc_device_id. So mark the non-const structs as const.

Arvind Yadav (8):
  [PATCH 1/8] parisc: asp: constify parisc_device_id
  [PATCH 2/8] parisc: ccio: constify parisc_device_id
  [PATCH 3/8] parisc: dino: constify parisc_device_id
  [PATCH 4/8] parisc: hppb: constify parisc_device_id
  [PATCH 5/8] parisc: lasi: constify parisc_device_id
  [PATCH 6/8] parisc: lba_pci: constify parisc_device_id
  [PATCH 7/8] parisc: sba_iommu: constify parisc_device_id
  [PATCH 8/8] parisc: wax: constify parisc_device_id

 drivers/parisc/asp.c         | 2 +-
 drivers/parisc/ccio-rm-dma.c | 2 +-
 drivers/parisc/dino.c        | 2 +-
 drivers/parisc/hppb.c        | 2 +-
 drivers/parisc/lasi.c        | 2 +-
 drivers/parisc/lba_pci.c     | 2 +-
 drivers/parisc/sba_iommu.c   | 2 +-
 drivers/parisc/wax.c         | 2 +-
 8 files changed, 8 insertions(+), 8 deletions(-)

-- 
2.7.4

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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 1/8] parisc: asp: constify parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work
with const parisc_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/parisc/asp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/asp.c b/drivers/parisc/asp.c
index 6a1ab25..4ad32e1 100644
--- a/drivers/parisc/asp.c
+++ b/drivers/parisc/asp.c
@@ -118,7 +118,7 @@ static int __init asp_init_chip(struct parisc_device *dev)
 	return ret;
 }
 
-static struct parisc_device_id asp_tbl[] = {
+static const struct parisc_device_id asp_tbl[] = {
 	{ HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00070 },
 	{ 0, }
 };
-- 
2.7.4



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Subject: [PATCH 4/8] parisc: hppb: constify parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work
with const parisc_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/parisc/hppb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c
index 898208e..261f826 100644
--- a/drivers/parisc/hppb.c
+++ b/drivers/parisc/hppb.c
@@ -81,7 +81,7 @@ static int hppb_probe(struct parisc_device *dev)
         return 0;
 }
 
-static struct parisc_device_id hppb_tbl[] = {
+static const struct parisc_device_id hppb_tbl[] = {
         { HPHW_BCPORT, HVERSION_REV_ANY_ID, 0x500, 0xc }, /* E25 and K */
         { HPHW_BCPORT, 0x0, 0x501, 0xc }, /* E35 */
         { HPHW_BCPORT, 0x0, 0x502, 0xc }, /* E45 */
-- 
2.7.4



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Subject: [PATCH 6/8] parisc: lba_pci: constify parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work
with const parisc_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/parisc/lba_pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index bc286cb..9d6179e 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1613,7 +1613,7 @@ lba_driver_probe(struct parisc_device *dev)
 	return 0;
 }
 
-static struct parisc_device_id lba_tbl[] = {
+static const struct parisc_device_id lba_tbl[] = {
 	{ HPHW_BRIDGE, HVERSION_REV_ANY_ID, ELROY_HVERS, 0xa },
 	{ HPHW_BRIDGE, HVERSION_REV_ANY_ID, MERCURY_HVERS, 0xa },
 	{ HPHW_BRIDGE, HVERSION_REV_ANY_ID, QUICKSILVER_HVERS, 0xa },
-- 
2.7.4



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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 7/8] parisc: sba_iommu: constify parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work
with const parisc_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/parisc/sba_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 4086f79..1bad85c 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1905,7 +1905,7 @@ static const struct file_operations sba_proc_bitmap_fops = {
 };
 #endif /* CONFIG_PROC_FS */
 
-static struct parisc_device_id sba_tbl[] = {
+static const struct parisc_device_id sba_tbl[] = {
 	{ HPHW_IOA, HVERSION_REV_ANY_ID, ASTRO_RUNWAY_PORT, 0xb },
 	{ HPHW_BCPORT, HVERSION_REV_ANY_ID, IKE_MERCED_PORT, 0xc },
 	{ HPHW_BCPORT, HVERSION_REV_ANY_ID, REO_MERCED_PORT, 0xc },
-- 
2.7.4



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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 8/8] parisc: wax: constify parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work
with const parisc_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/parisc/wax.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/wax.c b/drivers/parisc/wax.c
index da9d5ad..e2d5238 100644
--- a/drivers/parisc/wax.c
+++ b/drivers/parisc/wax.c
@@ -125,7 +125,7 @@ static int __init wax_init_chip(struct parisc_device *dev)
 	return ret;
 }
 
-static struct parisc_device_id wax_tbl[] = {
+static const struct parisc_device_id wax_tbl[] = {
   	{ HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008e },
 	{ 0, }
 };
-- 
2.7.4



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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 5/8] parisc: lasi: constify parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work
with const parisc_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/parisc/lasi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/lasi.c b/drivers/parisc/lasi.c
index e65727c..b77cf1e 100644
--- a/drivers/parisc/lasi.c
+++ b/drivers/parisc/lasi.c
@@ -227,7 +227,7 @@ static int __init lasi_init_chip(struct parisc_device *dev)
 	return ret;
 }
 
-static struct parisc_device_id lasi_tbl[] = {
+static const struct parisc_device_id lasi_tbl[] = {
 	{ HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00081 },
 	{ 0, }
 };
-- 
2.7.4



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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 3/8] parisc: dino: constify parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work
with const parisc_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/parisc/dino.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 5c63b92..19c5c9a 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -1022,7 +1022,7 @@ static int __init dino_probe(struct parisc_device *dev)
  * and 725 firmware misreport it as 0x08080 for no adequately explained
  * reason.
  */
-static struct parisc_device_id dino_tbl[] = {
+static const struct parisc_device_id dino_tbl[] = {
 	{ HPHW_A_DMA, HVERSION_REV_ANY_ID, 0x004, 0x0009D },/* Card-mode Dino */
 	{ HPHW_A_DMA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x08080 }, /* XXX */
 	{ HPHW_BRIDGE, HVERSION_REV_ANY_ID, 0x680, 0xa }, /* Bridge-mode Dino */
-- 
2.7.4



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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 2/8] parisc: ccio: constify parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work
with const parisc_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/parisc/ccio-rm-dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/ccio-rm-dma.c b/drivers/parisc/ccio-rm-dma.c
index 1bf9880..fc8fbb5 100644
--- a/drivers/parisc/ccio-rm-dma.c
+++ b/drivers/parisc/ccio-rm-dma.c
@@ -184,7 +184,7 @@ ccio_probe(struct parisc_device *dev)
 	return 0;
 }
 
-static struct parisc_device_id ccio_tbl[] = {
+static const struct parisc_device_id ccio_tbl[] = {
 	{ HPHW_BCPORT, HVERSION_REV_ANY_ID, U2_BC_GSC, 0xc },
 	{ HPHW_BCPORT, HVERSION_REV_ANY_ID, UTURN_BC_GSC, 0xc },
 	{ 0, }
-- 
2.7.4



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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work with
const parisc_device_id. So mark the non-const structs as const.

Arvind Yadav (4):
  [PATCH 1/4] scsi: lasi700: constify parisc_device_id
  [PATCH 2/4] scsi: zalon: constify parisc_device_id
  [PATCH 3/4] tty: 8250: constify parisc_device_id
  [PATCH 4/4] tty: mux: constify parisc_device_id

 drivers/scsi/lasi700.c             | 2 +-
 drivers/scsi/zalon.c               | 2 +-
 drivers/tty/serial/8250/8250_gsc.c | 4 ++--
 drivers/tty/serial/mux.c           | 4 ++--
 4 files changed, 6 insertions(+), 6 deletions(-)

-- 
2.7.4

--
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.scsi
Subject: [PATCH 2/4] scsi: zalon: constify parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work
with const parisc_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/scsi/zalon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/zalon.c b/drivers/scsi/zalon.c
index b2cf1fa..00c7c28 100644
--- a/drivers/scsi/zalon.c
+++ b/drivers/scsi/zalon.c
@@ -160,7 +160,7 @@ zalon_probe(struct parisc_device *dev)
 	return error;
 }
 
-static struct parisc_device_id zalon_tbl[] = {
+static const struct parisc_device_id zalon_tbl[] = {
 	{ HPHW_A_DMA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00089 }, 
 	{ 0, }
 };
-- 
2.7.4



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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.scsi
Subject: [PATCH 1/4] scsi: lasi700: constify parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work
with const parisc_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/scsi/lasi700.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/lasi700.c b/drivers/scsi/lasi700.c
index 5c4ded9..4e2b0e0 100644
--- a/drivers/scsi/lasi700.c
+++ b/drivers/scsi/lasi700.c
@@ -81,7 +81,7 @@ MODULE_LICENSE("GPL");
 #define LASI710_CLOCK	40
 #define LASI_SCSI_CORE_OFFSET 0x100
 
-static struct parisc_device_id lasi700_ids[] = {
+static const struct parisc_device_id lasi700_ids[] = {
 	LASI700_ID_TABLE,
 	LASI710_ID_TABLE,
 	{ 0 }
-- 
2.7.4



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Subject: [PATCH 4/4] tty: mux: constify parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work
with const parisc_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/tty/serial/mux.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/mux.c b/drivers/tty/serial/mux.c
index 8a4be4b..6afe83d 100644
--- a/drivers/tty/serial/mux.c
+++ b/drivers/tty/serial/mux.c
@@ -536,13 +536,13 @@ static int mux_remove(struct parisc_device *dev)
  * This table only contains the parisc_device_id of known builtin mux
  * devices.  All other mux cards will be detected by the generic mux_tbl.
  */
-static struct parisc_device_id builtin_mux_tbl[] = {
+static const struct parisc_device_id builtin_mux_tbl[] = {
 	{ HPHW_A_DIRECT, HVERSION_REV_ANY_ID, 0x15, 0x0000D }, /* All K-class */
 	{ HPHW_A_DIRECT, HVERSION_REV_ANY_ID, 0x44, 0x0000D }, /* E35, E45, and E55 */
 	{ 0, }
 };
 
-static struct parisc_device_id mux_tbl[] = {
+static const struct parisc_device_id mux_tbl[] = {
 	{ HPHW_A_DIRECT, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0000D },
 	{ 0, }
 };
-- 
2.7.4



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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.serial
Subject: [PATCH 3/4] tty: 8250: constify parisc_device_id
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parisc_device_id are not supposed to change at runtime. All functions
working with parisc_device_id provided by <asm/parisc-device.h> work
with const parisc_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 drivers/tty/serial/8250/8250_gsc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/8250/8250_gsc.c
index 63306de..0c078cc 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -80,7 +80,7 @@ static int __init serial_init_chip(struct parisc_device *dev)
 	return 0;
 }
 
-static struct parisc_device_id serial_tbl[] = {
+static const struct parisc_device_id serial_tbl[] = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00075 },
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008c },
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008d },
@@ -94,7 +94,7 @@ static struct parisc_device_id serial_tbl[] = {
  * which only knows about Lasi and then a second which will find all the
  * other serial ports.  HPUX ignores this problem.
  */
-static struct parisc_device_id lasi_tbl[] = {
+static const struct parisc_device_id lasi_tbl[] = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03B, 0x0008C }, /* C1xx/C1xxL */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03C, 0x0008C }, /* B132L */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03D, 0x0008C }, /* B160L */
-- 
2.7.4



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Newsgroups: gmane.linux.ports.parisc
Subject: [hp-parisc:boot_devel 2/2] arch/powerpc/boot/zutil.h:82:5: error:
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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git boot_devel
head:   2de6ba7d548dff737bdc47173c8a7b6b20d94966
commit: 2de6ba7d548dff737bdc47173c8a7b6b20d94966 [2/2] Initial support for compressed boot
config: powerpc-mpc83xx_defconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 2de6ba7d548dff737bdc47173c8a7b6b20d94966
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   In file included from arch/powerpc/boot/inffast.c:6:0:
   arch/powerpc/boot/zutil.h: In function 'zlib_adler32':
>> arch/powerpc/boot/zutil.h:82:5: error: unknown type name 'uint32_t'
        uint32_t s1 = adler & 0xffff;
        ^~~~~~~~
   arch/powerpc/boot/zutil.h:83:5: error: unknown type name 'uint32_t'
        uint32_t s2 = (adler >> 16) & 0xffff;
        ^~~~~~~~
--
   In file included from arch/powerpc/boot/inflate.c:12:0:
   arch/powerpc/boot/zutil.h: In function 'zlib_adler32':
>> arch/powerpc/boot/zutil.h:82:5: error: unknown type name 'uint32_t'
        uint32_t s1 = adler & 0xffff;
        ^~~~~~~~
   arch/powerpc/boot/zutil.h:83:5: error: unknown type name 'uint32_t'
        uint32_t s2 = (adler >> 16) & 0xffff;
        ^~~~~~~~
   arch/powerpc/boot/inflate.c: In function 'zlib_inflate':
   arch/powerpc/boot/inflate.c:358:18: error: 'uint32_t' undeclared (first use in this function)
                    (uint32_t)(((BITS(8) << 8) + (hold >> 8))) % 31) { // avoid __umoddi3
                     ^~~~~~~~
   arch/powerpc/boot/inflate.c:358:18: note: each undeclared identifier is reported only once for each function it appears in

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Subject: [hp-parisc:boot_devel 2/2] arch/powerpc/boot/inflate.c:358:18:
 error: 'uint32_t' undeclared
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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git boot_devel
head:   2de6ba7d548dff737bdc47173c8a7b6b20d94966
commit: 2de6ba7d548dff737bdc47173c8a7b6b20d94966 [2/2] Initial support for compressed boot
config: powerpc-akebono_defconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 2de6ba7d548dff737bdc47173c8a7b6b20d94966
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   In file included from arch/powerpc/boot/inflate.c:12:0:
   arch/powerpc/boot/zutil.h: In function 'zlib_adler32':
   arch/powerpc/boot/zutil.h:82:5: error: unknown type name 'uint32_t'
        uint32_t s1 = adler & 0xffff;
        ^~~~~~~~
   arch/powerpc/boot/zutil.h:83:5: error: unknown type name 'uint32_t'
        uint32_t s2 = (adler >> 16) & 0xffff;
        ^~~~~~~~
   arch/powerpc/boot/inflate.c: In function 'zlib_inflate':
>> arch/powerpc/boot/inflate.c:358:18: error: 'uint32_t' undeclared (first use in this function)
                    (uint32_t)(((BITS(8) << 8) + (hold >> 8))) % 31) { // avoid __umoddi3
                     ^~~~~~~~
   arch/powerpc/boot/inflate.c:358:18: note: each undeclared identifier is reported only once for each function it appears in

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hp-parisc:boot_devel 2/2] arch/powerpc/boot/inflate.c:358:18: error: 'uint32_t' undeclared
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Am Sonntag, 20. August 2017, 07:51:13 schrieb kbuild test robot:
> tree:  
> https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
> boot_devel head:   2de6ba7d548dff737bdc47173c8a7b6b20d94966
> commit: 2de6ba7d548dff737bdc47173c8a7b6b20d94966 [2/2] Initial support for
> compressed boot config: powerpc-akebono_defconfig (attached as .config)
> compiler: powerpc-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
> reproduce:
>         wget
> https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O
> ~/bin/make.cross chmod +x ~/bin/make.cross
>         git checkout 2de6ba7d548dff737bdc47173c8a7b6b20d94966
>         # save the attached .config to linux build tree
>         make.cross ARCH=powerpc

You will not get help for powerpc problems on the parisc list.

Eike
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From - Thu Nov 08 21:40:14 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: [hp-parisc:boot_devel 2/2] arch/powerpc/boot/inflate.c:358:18:
 error: 'uint32_t' undeclared
Date: Sun, 20 Aug 2017 10:32:33 +0200
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To: Rolf Eike Beer <eike-kernel@sf-tec.de>,
        kbuild test robot <fengguang.wu@intel.com>, kbuild-all@01.org
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On 20.08.2017 08:20, Rolf Eike Beer wrote:
> Am Sonntag, 20. August 2017, 07:51:13 schrieb kbuild test robot:
>> tree:  
>> https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
>> boot_devel head:   2de6ba7d548dff737bdc47173c8a7b6b20d94966
>> commit: 2de6ba7d548dff737bdc47173c8a7b6b20d94966 [2/2] Initial support for
>> compressed boot config: powerpc-akebono_defconfig (attached as .config)
>> compiler: powerpc-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
>> reproduce:
>>         wget
>> https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O
>> ~/bin/make.cross chmod +x ~/bin/make.cross
>>         git checkout 2de6ba7d548dff737bdc47173c8a7b6b20d94966
>>         # save the attached .config to linux build tree
>>         make.cross ARCH=powerpc
> 
> You will not get help for powerpc problems on the parisc list.

Eike, you are talking to a roboter :-)

The kbuild test robot checks regularily various git trees, if the
commits there will generate issues with other trees/architectures.
It picked up my parisc boot-devel tree and reported build errors
on the powerpc architecture.

Please ignore this specific issue here:
arch/powerpc/boot/inflate.c:358:18: error: 'uint32_t' undeclared
I don't need this change and fixed it in my tree.

Fengguang, can you maybe drop the parisc mailing list from 
the receiver list of issues with my trees? It just generate noise
for the people on the mailing list.

Thanks,
Helge
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From - Thu Nov 08 21:40:14 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [RFC][PATCH] parisc: Add support for self-extracting kernel
Date: Sun, 20 Aug 2017 10:52:22 +0200
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index dda1f55..3109541 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -17,6 +17,12 @@ config PARISC
 	select BUG
 	select BUILDTIME_EXTABLE_SORT
 	select HAVE_PERF_EVENTS
+	select HAVE_KERNEL_BZIP2
+	select HAVE_KERNEL_GZIP
+	select HAVE_KERNEL_LZ4
+	select HAVE_KERNEL_LZMA
+	select HAVE_KERNEL_LZO
+	select HAVE_KERNEL_XZ
 	select GENERIC_ATOMIC64 if !64BIT
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PCI_IOMAP
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 75cb451..58fae5d 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -24,15 +24,20 @@ KBUILD_DEFCONFIG := default_defconfig
 NM		= sh $(srctree)/arch/parisc/nm
 CHECKFLAGS	+= -D__hppa__=1
 LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
+export LIBGCC
 
 ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
 CC_ARCHES	= hppa64
+LD_BFD		:= elf64-hppa-linux
 else # 32-bit
 CC_ARCHES	= hppa hppa2.0 hppa1.1
+LD_BFD		:= elf32-hppa-linux
 endif
 
+export LD_BFD
+
 ifneq ($(SUBARCH),$(UTS_MACHINE))
 	ifeq ($(CROSS_COMPILE),)
 		CC_SUFFIXES = linux linux-gnu unknown-linux-gnu
@@ -88,6 +93,8 @@ libs-y	+= arch/parisc/lib/ $(LIBGCC)
 
 drivers-$(CONFIG_OPROFILE)		+= arch/parisc/oprofile/
 
+boot	:= arch/parisc/boot
+
 PALO := $(shell if (which palo 2>&1); then : ; \
 	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
 	fi)
@@ -116,11 +123,14 @@ INSTALL_TARGETS = zinstall install
 
 PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
 
-bzImage zImage: vmlinuz
+zImage: vmlinuz
 Image: vmlinux
 
-vmlinuz: vmlinux
-	@gzip -cf -9 $< > $@
+bzImage: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+vmlinuz: bzImage
+	$(OBJCOPY) $(boot)/bzImage $@
 
 install:
 	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
diff --git a/arch/parisc/boot/.gitignore b/arch/parisc/boot/.gitignore
new file mode 100644
index 0000000..017d591
--- /dev/null
+++ b/arch/parisc/boot/.gitignore
@@ -0,0 +1,2 @@
+image
+bzImage
diff --git a/arch/parisc/boot/Makefile b/arch/parisc/boot/Makefile
new file mode 100644
index 0000000..cad68a5
--- /dev/null
+++ b/arch/parisc/boot/Makefile
@@ -0,0 +1,26 @@
+#
+# Makefile for the linux parisc-specific parts of the boot image creator.
+#
+
+COMPILE_VERSION := __linux_compile_version_id__`hostname |  \
+			tr -c '[0-9A-Za-z]' '_'`__`date | \
+			tr -c '[0-9A-Za-z]' '_'`_t
+
+ccflags-y  := -DCOMPILE_VERSION=$(COMPILE_VERSION) -gstabs -I.
+
+targets := image
+targets += bzImage
+subdir- := compressed
+
+$(obj)/image: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/bzImage: $(obj)/compressed/vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/compressed/vmlinux: FORCE
+	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
+
+install: $(CONFIGURE) $(obj)/bzImage
+	sh -x  $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
+	      System.map "$(INSTALL_PATH)"
diff --git a/arch/parisc/boot/compressed/.gitignore b/arch/parisc/boot/compressed/.gitignore
new file mode 100644
index 0000000..ae06b9b
--- /dev/null
+++ b/arch/parisc/boot/compressed/.gitignore
@@ -0,0 +1,3 @@
+sizes.h
+vmlinux
+vmlinux.lds
diff --git a/arch/parisc/boot/compressed/Makefile b/arch/parisc/boot/compressed/Makefile
new file mode 100644
index 0000000..9b2d304
--- /dev/null
+++ b/arch/parisc/boot/compressed/Makefile
@@ -0,0 +1,87 @@
+#
+# linux/arch/parisc/boot/compressed/Makefile
+#
+# create a compressed self-extracting vmlinux image from the original vmlinux
+#
+
+KCOV_INSTRUMENT := n
+GCOV_PROFILE := n
+UBSAN_SANITIZE := n
+
+targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2
+targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4
+targets += misc.o piggy.o sizes.h head.o real2.o firmware.o
+
+KBUILD_CFLAGS := -D__KERNEL__ -O2 -DBOOTLOADER
+KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
+KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks
+KBUILD_CFLAGS += $(call cc-option,-mpacked-stack)
+KBUILD_CFLAGS += -fno-PIE -mno-space-regs
+ifndef CONFIG_64BIT
+KBUILD_CFLAGS += -mfast-indirect-calls
+endif
+
+OBJECTS += $(obj)/head.o $(obj)/real2.o $(obj)/firmware.o $(obj)/misc.o $(obj)/piggy.o
+
+# LDFLAGS_vmlinux := -X --whole-archive -e startup -T
+LDFLAGS_vmlinux := -X -e startup --as-needed -T
+$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS) $(LIBGCC)
+	$(call if_changed,ld)
+
+sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\|parisc_kernel_start\)$$/\#define SZ\2 0x\1/p'
+
+quiet_cmd_sizes = GEN $@
+      cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@
+
+$(obj)/sizes.h: vmlinux
+	$(call if_changed,sizes)
+
+AFLAGS_head.o += -I$(objtree)/$(obj) -DBOOTLOADER
+$(obj)/head.o: $(obj)/sizes.h
+
+CFLAGS_misc.o += -I$(objtree)/$(obj)
+$(obj)/misc.o: $(obj)/sizes.h
+
+$(obj)/firmware.o: $(obj)/firmware.c
+$(obj)/firmware.c: $(srctree)/arch/$(SRCARCH)/kernel/firmware.c
+	$(call cmd,shipped)
+
+AFLAGS_real2.o += -DBOOTLOADER
+$(obj)/real2.o: $(obj)/real2.S
+$(obj)/real2.S: $(srctree)/arch/$(SRCARCH)/kernel/real2.S
+	$(call cmd,shipped)
+
+$(obj)/misc.o: $(obj)/sizes.h
+
+CPPFLAGS_vmlinux.lds += -I$(objtree)/$(obj) -DBOOTLOADER
+$(obj)/vmlinux.lds: $(obj)/sizes.h
+
+OBJCOPYFLAGS_vmlinux.bin := -O binary -R .comment -S
+$(obj)/vmlinux.bin: vmlinux
+	$(call if_changed,objcopy)
+
+vmlinux.bin.all-y := $(obj)/vmlinux.bin
+
+suffix-$(CONFIG_KERNEL_GZIP)  := gz
+suffix-$(CONFIG_KERNEL_BZIP2) := bz2
+suffix-$(CONFIG_KERNEL_LZ4)  := lz4
+suffix-$(CONFIG_KERNEL_LZMA)  := lzma
+suffix-$(CONFIG_KERNEL_LZO)  := lzo
+suffix-$(CONFIG_KERNEL_XZ)  := xz
+
+$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y)
+	$(call if_changed,gzip)
+$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y)
+	$(call if_changed,bzip2)
+$(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y)
+	$(call if_changed,lz4)
+$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y)
+	$(call if_changed,lzma)
+$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y)
+	$(call if_changed,lzo)
+$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y)
+	$(call if_changed,xzkern)
+
+LDFLAGS_piggy.o := -r --format binary --oformat $(LD_BFD) -T
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y)
+	$(call if_changed,ld)
diff --git a/arch/parisc/boot/compressed/head.S b/arch/parisc/boot/compressed/head.S
new file mode 100644
index 0000000..5aba20f
--- /dev/null
+++ b/arch/parisc/boot/compressed/head.S
@@ -0,0 +1,85 @@
+/*
+ * Startup glue code to uncompress the kernel
+ *
+ *   (C) 2017 Helge Deller <deller@gmx.de>
+ */
+
+#include <linux/init.h>
+#include <linux/linkage.h>
+#include <asm/asm-offsets.h>
+#include <asm/page.h>
+#include <asm/psw.h>
+#include <asm/pdc.h>
+#include <asm/assembly.h>
+#include "sizes.h"
+
+#define BOOTADDR(x)	(x)
+
+#ifndef CONFIG_64BIT
+	.import	$global$		/* forward declaration */
+#endif /*!CONFIG_64BIT*/
+
+	__HEAD
+
+ENTRY(startup)
+	 .level LEVEL
+
+#define PSW_W_SM	0x200
+#define PSW_W_BIT       36
+
+	;! nuke the W bit, saving original value
+	.level 2.0
+	rsm	PSW_W_SM, %r1
+
+	.level 1.1
+	extrw,u	%r1, PSW_W_BIT-32, 1, %r1
+	copy	%r1, %arg0
+
+	/* Make sure sr4-sr7 are set to zero for the kernel address space */
+	mtsp    %r0,%sr4
+	mtsp    %r0,%sr5
+	mtsp    %r0,%sr6
+	mtsp    %r0,%sr7
+
+	/* Clear BSS */
+
+	.import _bss,data
+	.import _ebss,data
+
+	load32	BOOTADDR(_bss),%r3
+	load32	BOOTADDR(_ebss),%r4
+	ldo	FRAME_SIZE(%r4),%sp	/* stack at end of bss */
+$bss_loop:
+	cmpb,<<,n %r3,%r4,$bss_loop
+	stw,ma	%r0,4(%r3)
+
+	/* Initialize the global data pointer */
+	loadgp
+
+	/* arg0..arg4 were set by palo. */
+	copy	%arg1, %r6		/* command line */
+	copy	%arg2, %r7		/* rd-start */
+	copy	%arg3, %r8		/* rd-end */
+	load32	BOOTADDR(decompress_kernel),%r3
+
+#ifdef CONFIG_64BIT
+	.level LEVEL
+	ssm	PSW_W_SM, %r0		/* set W-bit */
+	depdi	0, 31, 32, %r3
+#endif
+	load32	BOOTADDR(startup_continue), %r2
+	bv,n	0(%r3)
+
+startup_continue:
+#ifdef CONFIG_64BIT
+	.level LEVEL
+	rsm	PSW_W_SM, %r0		/* clear W-bit */
+#endif
+
+	load32	KERNEL_BINARY_TEXT_START, %arg0 /* free mem */
+	copy	%r6, %arg1		/* command line */
+	copy	%r7, %arg2		/* rd-start */
+	copy	%r8, %arg3		/* rd-end */
+
+	bv,n	0(%ret0)
+END(startup)
diff --git a/arch/parisc/boot/compressed/misc.c b/arch/parisc/boot/compressed/misc.c
new file mode 100644
index 0000000..248e232
--- /dev/null
+++ b/arch/parisc/boot/compressed/misc.c
@@ -0,0 +1,301 @@
+/*
+ * Definitions and wrapper functions for kernel decompressor
+ *
+ *   (C) 2017 Helge Deller <deller@gmx.de>
+ */
+
+#include <linux/uaccess.h>
+#include <asm/unaligned.h>
+#include <asm/page.h>
+#include "sizes.h"
+
+/*
+ * gzip declarations
+ */
+#define STATIC static
+
+#undef memmove
+#define memmove memmove
+#define memzero(s, n) memset((s), 0, (n))
+
+#define malloc	malloc_gzip
+#define free	free_gzip
+
+/* Symbols defined by linker scripts */
+extern char input_data[];
+extern int input_len;
+extern __le32 output_len;	/* at unaligned address, little-endian */
+extern char _text, _end;
+extern char _bss, _ebss;
+extern char _startcode_end;
+extern void startup_continue(void *entry, unsigned long cmdline,
+	unsigned long rd_start, unsigned long rd_end) __noreturn;
+
+void error(char *m) __noreturn;
+
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+
+#ifdef CONFIG_KERNEL_GZIP
+#include "../../../../lib/decompress_inflate.c"
+#endif
+
+#ifdef CONFIG_KERNEL_BZIP2
+#include "../../../../lib/decompress_bunzip2.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZ4
+#include "../../../../lib/decompress_unlz4.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+
+#ifdef CONFIG_KERNEL_XZ
+#include "../../../../lib/decompress_unxz.c"
+#endif
+
+void *memmove(void *dest, const void *src, size_t n)
+{
+	const char *s = src;
+	char *d = dest;
+
+	if (d <= s) {
+		while (n--)
+			*d++ = *s++;
+	} else {
+		d += n;
+		s += n;
+		while (n--)
+			*--d = *--s;
+	}
+	return dest;
+}
+
+void *memset(void *s,int c, size_t count)
+{
+	char *xs = (char *)s;
+
+	while (count--)
+		*xs++ = c;
+	return s;
+}
+
+void *memcpy(void *d, const void *s, size_t len)
+{
+	char *dest = (char *)d;
+	const char *source = (const char *)s;
+
+	while (len--)
+		*dest++ = *source++;
+	return d;
+}
+
+size_t strlen(const char *s)
+{
+        const char *sc;
+
+        for (sc = s; *sc != '\0'; ++sc)
+                /* nothing */;
+        return sc - s;
+}
+
+char *strchr(const char *s, int c)
+{
+	while (*s) {
+		if (*s == (char)c)
+			return (char *)s;
+		++s;
+	}
+	return NULL;
+}
+
+int puts(const char *s)
+{
+    const char *nuline = s;
+
+    while ((nuline = strchr(s, '\n')) != NULL)
+    {
+	if (nuline != s)
+		pdc_iodc_print(s, nuline - s);
+	pdc_iodc_print("\r\n", 2);
+	s = nuline + 1;
+    }
+    if (*s != '\0')
+	pdc_iodc_print(s, strlen(s));
+    return 0;
+}
+
+static int putchar(int c)
+{
+    char buf[2];
+
+    buf[0] = c;
+    buf[1] = '\0';
+    puts(buf);
+    return c;
+}
+
+void __noreturn error(char *x)
+{
+	puts("\n\n");
+	puts(x);
+	puts("\n\n -- System halted");
+	while (1) /* wait forever. */;
+}
+
+static int print_hex(unsigned long num)
+{
+	const char hex[] = "0123456789abcdef";
+	char str[40];
+	int i = sizeof(str)-1;
+
+	str[i--] = '\0';
+	do {
+		str[i--] = hex[num & 0x0f];
+		num >>= 4;
+	} while (num);
+
+	str[i--] = 'x';
+	str[i] = '0';
+	puts(&str[i]);
+
+	return 0;
+}
+
+int printk(const char *fmt, ...)
+{
+	va_list args;
+	int i = 0;
+
+	va_start(args, fmt);
+
+	while (fmt[i]) {
+		if (fmt[i] != '%') {
+put:
+			putchar(fmt[i++]);
+			continue;
+		}
+
+		if (fmt[++i] == '%')
+			goto put;
+		++i;
+		print_hex(va_arg(args, unsigned long));
+	}
+
+	va_end(args);
+	return 0;
+}
+
+/* helper functions for libgcc */
+void abort(void)
+{
+	error("abort() called.");
+}
+
+#undef malloc
+void *malloc(size_t size)
+{
+	return malloc_gzip(size);
+}
+
+#undef free
+void free(void *ptr)
+{
+	return free_gzip(ptr);
+}
+
+
+static void flush_data_cache(char *start, unsigned long length)
+{
+    char *end = start + length;
+
+    do
+    {
+	asm volatile("fdc 0(%0)" : : "r" (start));
+	asm volatile("fic 0(%%sr0,%0)" : : "r" (start));
+	start += 16;
+    } while (start < end);
+    asm volatile("fdc 0(%0)" : : "r" (end));
+
+    asm ("sync");
+}
+
+unsigned long decompress_kernel(unsigned int started_wide,
+		unsigned int command_line,
+		const unsigned int rd_start,
+		const unsigned int rd_end)
+{
+	char *output;
+	unsigned long len, len_all;
+
+#ifdef CONFIG_64BIT
+	parisc_narrow_firmware = 0;
+#endif
+
+	set_firmware_width_unlocked();
+
+	putchar('U');	/* if you get this p and no more, string storage */
+			/* in $GLOBAL$ is wrong or %dp is wrong */
+	puts("ncompressing ...\n");
+
+	output = (char *) KERNEL_BINARY_TEXT_START;
+	len_all = __pa(SZ_end) - __pa(SZparisc_kernel_start);
+
+	if ((unsigned long) &_startcode_end > (unsigned long) output)
+		error("Bootcode overlaps kernel code");
+
+	len = get_unaligned_le32(&output_len);
+	if (len > len_all)
+		error("Output len too big.");
+	else
+		memset(&output[len], 0, len_all - len);
+
+	/*
+	 * Initialize free_mem_ptr and free_mem_end_ptr.
+	 */
+	free_mem_ptr = (unsigned long) &_ebss;
+	free_mem_ptr += 2*1024*1024;	/* leave 2 MB for stack */
+
+	/* Limit memory for bootoader to 1GB */
+	#define ARTIFICIAL_LIMIT (1*1024*1024*1024)
+	free_mem_end_ptr = PAGE0->imm_max_mem;
+	if (free_mem_end_ptr > ARTIFICIAL_LIMIT)
+		free_mem_end_ptr = ARTIFICIAL_LIMIT;
+
+#ifdef CONFIG_BLK_DEV_INITRD
+	/* if we have ramdisk this is at end of memory */
+	if (rd_start && rd_start < free_mem_end_ptr)
+		free_mem_end_ptr = rd_start;
+#endif
+
+#ifdef DEBUG
+	printk("startcode_end = %x\n", &_startcode_end);
+	printk("commandline   = %x\n", command_line);
+	printk("rd_start      = %x\n", rd_start);
+	printk("rd_end        = %x\n", rd_end);
+
+	printk("free_ptr      = %x\n", free_mem_ptr);
+	printk("free_ptr_end  = %x\n", free_mem_end_ptr);
+
+	printk("input_data    = %x\n", input_data);
+	printk("input_len     = %x\n", input_len);
+	printk("output        = %x\n", output);
+	printk("output_len    = %x\n", len);
+	printk("output_max    = %x\n", len_all);
+#endif
+
+	__decompress(input_data, input_len, NULL, NULL,
+			output, 0, NULL, error);
+
+	flush_data_cache(output, len);
+
+	printk("Booting kernel ...\n\n");
+
+	return (unsigned long) output;
+}
diff --git a/arch/parisc/boot/compressed/vmlinux.lds.S b/arch/parisc/boot/compressed/vmlinux.lds.S
new file mode 100644
index 0000000..a4ce331
--- /dev/null
+++ b/arch/parisc/boot/compressed/vmlinux.lds.S
@@ -0,0 +1,101 @@
+#include <asm-generic/vmlinux.lds.h>
+#include <asm/page.h>
+#include "sizes.h"
+
+#ifndef CONFIG_64BIT
+OUTPUT_FORMAT("elf32-hppa-linux")
+OUTPUT_ARCH(hppa)
+#else
+OUTPUT_FORMAT("elf64-hppa-linux")
+OUTPUT_ARCH(hppa:hppa2.0w)
+#endif
+
+ENTRY(startup)
+
+SECTIONS
+{
+	/* palo loads at 0x60000 */
+	/* loaded kernel will move to 0x10000 */
+	. = 0xe0000;    /* should not overwrite palo code */
+
+	.head.text : {
+		_head = . ;
+		HEAD_TEXT
+		_ehead = . ;
+	}
+
+	/* keep __gp below 0x1000000 */
+#ifdef CONFIG_64BIT
+	. = ALIGN(16);
+	/* Linkage tables */
+	.opd : {
+		*(.opd)
+	} PROVIDE (__gp = .);
+	.plt : {
+		*(.plt)
+	}
+	.dlt : {
+		*(.dlt)
+	}
+#endif
+	_startcode_end = .;
+
+	/* bootloader code and data starts behind area of extracted kernel */
+	. = (SZ_end - SZparisc_kernel_start + KERNEL_BINARY_TEXT_START);
+
+	/* align on next page boundary */
+	. = ALIGN(4096);
+	.text :	{
+		_text = .;	/* Text */
+		*(.text)
+		*(.text.*)
+		_etext = . ;
+	}
+	. = ALIGN(8);
+	.data :	{
+		_data = . ;
+		*(.data)
+		*(.data.*)
+		_edata = . ;
+	}
+	. = ALIGN(8);
+	.rodata : {
+		_rodata = . ;
+		*(.rodata)	 /* read-only data */
+		*(.rodata.*)
+		_erodata = . ;
+	}
+	. = ALIGN(8);
+	.rodata.compressed : {
+		*(.rodata.compressed)
+	}
+	. = ALIGN(8);
+	.bss : {
+		_bss = . ;
+		*(.bss)
+		*(.bss.*)
+		*(COMMON)
+		. = ALIGN(4096);
+		_ebss = .;
+	}
+
+	STABS_DEBUG
+	.note 0 : { *(.note) }
+
+	/* Sections to be discarded */
+	DISCARDS
+	/DISCARD/ : {
+#ifdef CONFIG_64BIT
+		/* temporary hack until binutils is fixed to not emit these
+		 * for static binaries
+		 */
+		*(.PARISC.unwind)	/* no unwind data */
+		*(.interp)
+		*(.dynsym)
+		*(.dynstr)
+		*(.dynamic)
+		*(.hash)
+		*(.gnu.hash)
+#endif
+	}
+}
diff --git a/arch/parisc/boot/compressed/vmlinux.scr b/arch/parisc/boot/compressed/vmlinux.scr
new file mode 100644
index 0000000..dac2d14
--- /dev/null
+++ b/arch/parisc/boot/compressed/vmlinux.scr
@@ -0,0 +1,10 @@
+SECTIONS
+{
+  .rodata.compressed : {
+	input_len = .;
+	LONG(input_data_end - input_data) input_data = .;
+	*(.data)
+	output_len = . - 4; /* can be at unaligned address */
+	input_data_end = .;
+	}
+}
diff --git a/arch/parisc/boot/install.sh b/arch/parisc/boot/install.sh
new file mode 100644
index 0000000..8f7c365
--- /dev/null
+++ b/arch/parisc/boot/install.sh
@@ -0,0 +1,65 @@
+#!/bin/sh
+#
+# arch/parisc/install.sh, derived from arch/i386/boot/install.sh
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1995 by Linus Torvalds
+#
+# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
+#
+# "make install" script for i386 architecture
+#
+# Arguments:
+#   $1 - kernel version
+#   $2 - kernel image file
+#   $3 - kernel map file
+#   $4 - default install path (blank if root directory)
+#
+
+verify () {
+	if [ ! -f "$1" ]; then
+		echo ""                                                   1>&2
+		echo " *** Missing file: $1"                              1>&2
+		echo ' *** You need to run "make" before "make install".' 1>&2
+		echo ""                                                   1>&2
+		exit 1
+	fi
+}
+
+# Make sure the files actually exist
+
+verify "$2"
+verify "$3"
+
+# User may have a custom install script
+
+if [ -n "${INSTALLKERNEL}" ]; then
+  if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
+  if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
+fi
+
+# Default install
+
+if [ "$(basename $2)" = "zImage" ]; then
+# Compressed install
+  echo "Installing compressed kernel"
+  base=vmlinuz
+else
+# Normal install
+  echo "Installing normal kernel"
+  base=vmlinux
+fi
+
+if [ -f $4/$base-$1 ]; then
+  mv $4/$base-$1 $4/$base-$1.old
+fi
+cat $2 > $4/$base-$1
+
+# Install system map file
+if [ -f $4/System.map-$1 ]; then
+  mv $4/System.map-$1 $4/System.map-$1.old
+fi
+cp $3 $4/System.map-$1
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index 80e742a..bfed09d 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -116,11 +116,15 @@ extern int npmem_ranges;
 /* This governs the relationship between virtual and physical addresses.
  * If you alter it, make sure to take care of our various fixed mapping
  * segments in fixmap.h */
+#if defined(BOOTLOADER)
+#define __PAGE_OFFSET	(0)		/* bootloader uses physical addresses */
+#else
 #ifdef CONFIG_64BIT
 #define __PAGE_OFFSET	(0x40000000)	/* 1GB */
 #else
 #define __PAGE_OFFSET	(0x10000000)	/* 256MB */
 #endif
+#endif /* BOOTLOADER */
 
 #define PAGE_OFFSET		((unsigned long)__PAGE_OFFSET)
 
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 7569627..26b4455 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -5,6 +5,8 @@
 
 #if !defined(__ASSEMBLY__)
 
+extern int parisc_narrow_firmware;
+
 extern int pdc_type;
 extern unsigned long parisc_cell_num; /* cell number the CPU runs on (PAT) */
 extern unsigned long parisc_cell_loc; /* cell location of CPU (PAT)	   */
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index f622a31..41efeed 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -69,7 +69,15 @@
 #include <asm/pdcpat.h>
 #include <asm/processor.h>	/* for boot_cpu_data */
 
+#if defined(BOOTLOADER)
+# undef  spin_lock_irqsave
+# define spin_lock_irqsave(a,b) b = 1
+# undef  spin_unlock_irqrestore
+# define spin_unlock_irqrestore(a,b)
+#else
 static DEFINE_SPINLOCK(pdc_lock);
+#endif
+
 extern unsigned long pdc_result[NUM_PDC_RESULT];
 extern unsigned long pdc_result2[NUM_PDC_RESULT];
 
@@ -186,6 +194,8 @@ void set_firmware_width(void)
 }
 #endif /*CONFIG_64BIT*/
 
+
+#if !defined(BOOTLOADER)
 /**
  * pdc_emergency_unlock - Unlock the linux pdc lock
  *
@@ -1143,6 +1153,8 @@ void pdc_io_reset_devices(void)
 	spin_unlock_irqrestore(&pdc_lock, flags);
 }
 
+#endif /* defined(BOOTLOADER) */
+
 /* locked by pdc_console_lock */
 static int __attribute__((aligned(8)))   iodc_retbuf[32];
 static char __attribute__((aligned(64))) iodc_dbuf[4096];
@@ -1187,6 +1199,7 @@ int pdc_iodc_print(const unsigned char *str, unsigned count)
 	return i;
 }
 
+#if !defined(BOOTLOADER)
 /**
  * pdc_iodc_getc - Read a character (non-blocking) from the PDC console.
  *
@@ -1524,6 +1537,7 @@ int pdc_pat_mem_get_dimm_phys_location(
 	return retval;
 }
 #endif /* CONFIG_64BIT */
+#endif /* defined(BOOTLOADER) */
 
 
 /***************** 32-bit real-mode calls ***********/
@@ -1633,4 +1647,3 @@ long real64_call(unsigned long fn, ...)
 }
 
 #endif /* CONFIG_64BIT */
-
diff --git a/arch/parisc/kernel/real2.S b/arch/parisc/kernel/real2.S
index 1db58e5..cc99634 100644
--- a/arch/parisc/kernel/real2.S
+++ b/arch/parisc/kernel/real2.S
@@ -162,6 +162,7 @@ ENDPROC_CFI(restore_control_regs)
 	.text
 	.align 128
 ENTRY_CFI(rfi_virt2real)
+#if !defined(BOOTLOADER)
 	/* switch to real mode... */
 	rsm		PSW_SM_I,%r0
 	load32		PA(rfi_v2r_1), %r1
@@ -191,6 +192,7 @@ ENTRY_CFI(rfi_virt2real)
 	nop
 rfi_v2r_1:
 	tophys_r1 %r2
+#endif /* defined(BOOTLOADER) */
 	bv	0(%r2)
 	nop
 ENDPROC_CFI(rfi_virt2real)
@@ -198,6 +200,7 @@ ENDPROC_CFI(rfi_virt2real)
 	.text
 	.align 128
 ENTRY_CFI(rfi_real2virt)
+#if !defined(BOOTLOADER)
 	rsm		PSW_SM_I,%r0
 	load32		(rfi_r2v_1), %r1
 	nop
@@ -226,6 +229,7 @@ ENTRY_CFI(rfi_real2virt)
 	nop
 rfi_r2v_1:
 	tovirt_r1 %r2
+#endif /* defined(BOOTLOADER) */
 	bv	0(%r2)
 	nop
 ENDPROC_CFI(rfi_real2virt)
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: Kernel panic building polyml
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On 2017-08-19, at 8:56 AM, John David Anglin wrote:

> mx3210 login: systemd-logind[4461]: New seat seat0.
> systemd-logind[4461]: Failed to start user service, ignoring: Unknown =
unit: user@0.service
> systemd-logind[4461]: Failed to start user service, ignoring: Unknown =
unit: user@110.service
> Backtrace:
> [<00000000402f316c>] compat_get_fd_set+0x5c/0x78
> [<00000000402f3cac>] compat_core_sys_select+0x1cc/0x300
> [<00000000402f52dc>] compat_SyS_select+0x144/0x1a0
> [<0000000040155fe4>] syscall_exit+0x0/0x14
>=20
>=20
> Kernel Fault: Code=3D26 (Data memory access rights trap) =
regs=3D00000002234b84e0 (Addr=3D0000000000000000)
> CPU: 1 PID: 21167 Comm: polyimport Not tainted 4.13.0-rc5+ #1
> task: 0000000223d74b50 task.stack: 00000002234b8000
>=20
> YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00001000000001101111111100001111 Not tainted
> r00-03 000000ff0806ff0f 00000002234b8420 00000000402f316c =
00000002234b84a0
> r04-07 000000004071c960 00000002234b82b8 00000002234b8218 =
0000000000000100
> r08-11 0000000000000004 0000000000000100 00000000f3780588 =
0000000000000000
> r12-15 0000000000000000 00000002234b8148 0000000000000000 =
00000002234b8218
> r16-19 0000000000000000 000000000002f03c 000000000002f030 =
0000000000000000
> r20-23 0000000000000100 0000000000000000 00000002234b8148 =
0000000000000000
> r24-27 0000000000000100 0000000000000000 0000000000000000 =
000000004071c960
> r28-31 0000000000000000 00000002234b8470 00000002234b84e0 =
0000000000000000
> sr00-03 0000000003f15000 0000000003f15000 0000000003f15000 =
0000000003f15000
> sr04-07 0000000000000000 0000000000000000 0000000000000000 =
0000000000000000
>=20
> IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000406a4718 =
00000000406a471c
> IIR: 0ff312c0 ISR: 0000000000000000 IOR: 0000000000000000
> CPU: 1 CR30: 00000002234b8000 CR31: b33e06ff0008e07f
> ORIG_R28: 0000000000000040
> IAOQ[0]: memset+0x68/0xd8
> IAOQ[1]: memset+0x6c/0xd8
> RP(r2): compat_get_fd_set+0x5c/0x78
> Backtrace:
> [<00000000402f316c>] compat_get_fd_set+0x5c/0x78
> [<00000000402f3cac>] compat_core_sys_select+0x1cc/0x300
> [<00000000402f52dc>] compat_SyS_select+0x144/0x1a0
> [<0000000040155fe4>] syscall_exit+0x0/0x14
>=20
> Kernel panic - not syncing: Kernel Fault
> ---[ end Kernel panic - not syncing: Kernel Fault


The attached patch is probably not the real fix but it should prevent =
the panic.



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diff --git a/fs/select.c b/fs/select.c
index d6c652a31e99..8790c0a0bd3c 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -1181,6 +1181,8 @@ int compat_get_fd_set(unsigned long nr, =
compat_ulong_t __user *ufdset,
 		if (odd && __get_user(*fdset, ufdset))
 			return -EFAULT;
 	} else {
+		if (!fdset)
+			return -EFAULT;
 		/* Tricky, must clear full unsigned long in the
 		 * kernel fdset at the end, this makes sure that
 		 * actually happens.

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--
John David Anglin	dave.anglin@bell.net

PS: the above crash is what broke the dsa-puppet git archive on mx3210.
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Looping in the linux-fsdevel mailing list in this mail....

Dave faced a kernel crash on parisc with 32-bit userspace on 64-bit kernel.
It seems the patch below fixes this bug.

Helge

* John David Anglin <dave.anglin@bell.net>:
> On 2017-08-19, at 8:56 AM, John David Anglin wrote:
> 
> > mx3210 login: systemd-logind[4461]: New seat seat0.
> > systemd-logind[4461]: Failed to start user service, ignoring: Unknown unit: user@0.service
> > systemd-logind[4461]: Failed to start user service, ignoring: Unknown unit: user@110.service
> > Backtrace:
> > [<00000000402f316c>] compat_get_fd_set+0x5c/0x78
> > [<00000000402f3cac>] compat_core_sys_select+0x1cc/0x300
> > [<00000000402f52dc>] compat_SyS_select+0x144/0x1a0
> > [<0000000040155fe4>] syscall_exit+0x0/0x14
> > 
> > 
> > Kernel Fault: Code=26 (Data memory access rights trap) regs=00000002234b84e0 (Addr=0000000000000000)
> > CPU: 1 PID: 21167 Comm: polyimport Not tainted 4.13.0-rc5+ #1
> > task: 0000000223d74b50 task.stack: 00000002234b8000
> > 
> > YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> > PSW: 00001000000001101111111100001111 Not tainted
> > r00-03 000000ff0806ff0f 00000002234b8420 00000000402f316c 00000002234b84a0
> > r04-07 000000004071c960 00000002234b82b8 00000002234b8218 0000000000000100
> > r08-11 0000000000000004 0000000000000100 00000000f3780588 0000000000000000
> > r12-15 0000000000000000 00000002234b8148 0000000000000000 00000002234b8218
> > r16-19 0000000000000000 000000000002f03c 000000000002f030 0000000000000000
> > r20-23 0000000000000100 0000000000000000 00000002234b8148 0000000000000000
> > r24-27 0000000000000100 0000000000000000 0000000000000000 000000004071c960
> > r28-31 0000000000000000 00000002234b8470 00000002234b84e0 0000000000000000
> > sr00-03 0000000003f15000 0000000003f15000 0000000003f15000 0000000003f15000
> > sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> > 
> > IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000406a4718 00000000406a471c
> > IIR: 0ff312c0 ISR: 0000000000000000 IOR: 0000000000000000
> > CPU: 1 CR30: 00000002234b8000 CR31: b33e06ff0008e07f
> > ORIG_R28: 0000000000000040
> > IAOQ[0]: memset+0x68/0xd8
> > IAOQ[1]: memset+0x6c/0xd8
> > RP(r2): compat_get_fd_set+0x5c/0x78
> > Backtrace:
> > [<00000000402f316c>] compat_get_fd_set+0x5c/0x78
> > [<00000000402f3cac>] compat_core_sys_select+0x1cc/0x300
> > [<00000000402f52dc>] compat_SyS_select+0x144/0x1a0
> > [<0000000040155fe4>] syscall_exit+0x0/0x14
> > 
> > Kernel panic - not syncing: Kernel Fault
> > ---[ end Kernel panic - not syncing: Kernel Fault
> 
> 
> The attached patch is probably not the real fix but it should prevent the panic.
> 
> 

> diff --git a/fs/select.c b/fs/select.c
> index d6c652a31e99..8790c0a0bd3c 100644
> --- a/fs/select.c
> +++ b/fs/select.c
> @@ -1181,6 +1181,8 @@ int compat_get_fd_set(unsigned long nr, compat_ulong_t __user *ufdset,
>  		if (odd && __get_user(*fdset, ufdset))
>  			return -EFAULT;
>  	} else {
> +		if (!fdset)
> +			return -EFAULT;
>  		/* Tricky, must clear full unsigned long in the
>  		 * kernel fdset at the end, this makes sure that
>  		 * actually happens.



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From: Helge Deller <deller@gmx.de>
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Subject: Re: [RFC][PATCH] parisc: Add support for self-extracting kernel
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The patch below is missing on top of the old patch I sent.
It's needed to avoid usage of fp registers.
This patch unbreaks booting the lzma variants (XZ, LZO, LZMA,...)

Signed-off-by: Helge Deller <deller@gmx.de>

Helge

diff --git a/arch/parisc/boot/compressed/Makefile b/arch/parisc/boot/compressed/Makefile
index 9b2d304..5450a11 100644
--- a/arch/parisc/boot/compressed/Makefile
+++ b/arch/parisc/boot/compressed/Makefile
@@ -15,8 +15,7 @@ targets += misc.o piggy.o sizes.h head.o real2.o firmware.o
 KBUILD_CFLAGS := -D__KERNEL__ -O2 -DBOOTLOADER
 KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
 KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks
-KBUILD_CFLAGS += $(call cc-option,-mpacked-stack)
-KBUILD_CFLAGS += -fno-PIE -mno-space-regs
+KBUILD_CFLAGS += -fno-PIE -mno-space-regs -mdisable-fpregs
 ifndef CONFIG_64BIT
 KBUILD_CFLAGS += -mfast-indirect-calls
 endif
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Subject: [PATCH 05/14] parisc/8250_gsc: Fix section mismatches
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Signed-off-by: Helge Deller <deller@gmx.de>
---
 drivers/tty/serial/8250/8250_gsc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/8250/8250_gsc.c
index 63306de..e142ab2 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -80,7 +80,7 @@ static int __init serial_init_chip(struct parisc_device *dev)
 	return 0;
 }
 
-static struct parisc_device_id serial_tbl[] = {
+static struct parisc_device_id serial_tbl[] __initconst = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00075 },
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008c },
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008d },
@@ -94,7 +94,7 @@ static struct parisc_device_id serial_tbl[] = {
  * which only knows about Lasi and then a second which will find all the
  * other serial ports.  HPUX ignores this problem.
  */
-static struct parisc_device_id lasi_tbl[] = {
+static struct parisc_device_id lasi_tbl[] __initconst = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03B, 0x0008C }, /* C1xx/C1xxL */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03C, 0x0008C }, /* B132L */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03D, 0x0008C }, /* B160L */
@@ -110,13 +110,13 @@ static struct parisc_device_id lasi_tbl[] = {
 
 MODULE_DEVICE_TABLE(parisc, serial_tbl);
 
-static struct parisc_driver lasi_driver = {
+static struct parisc_driver lasi_driver __refdata = {
 	.name		= "serial_1",
 	.id_table	= lasi_tbl,
 	.probe		= serial_init_chip,
 };
 
-static struct parisc_driver serial_driver = {
+static struct parisc_driver serial_driver __refdata = {
 	.name		= "serial",
 	.id_table	= serial_tbl,
 	.probe		= serial_init_chip,
-- 
2.1.0

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Signed-off-by: Helge Deller <deller@gmx.de>
---
 drivers/parport/parport_gsc.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
index 3858b87..435e6f7 100644
--- a/drivers/parport/parport_gsc.c
+++ b/drivers/parport/parport_gsc.c
@@ -346,7 +346,7 @@ struct parport *parport_gsc_probe_port(unsigned long base,
 
 static int parport_count;
 
-static int parport_init_chip(struct parisc_device *dev)
+static int __init parport_init_chip(struct parisc_device *dev)
 {
 	struct parport *p;
 	unsigned long port;
@@ -381,7 +381,7 @@ static int parport_init_chip(struct parisc_device *dev)
 	return 0;
 }
 
-static int parport_remove_chip(struct parisc_device *dev)
+static int __exit parport_remove_chip(struct parisc_device *dev)
 {
 	struct parport *p = dev_get_drvdata(&dev->dev);
 	if (p) {
@@ -403,18 +403,18 @@ static int parport_remove_chip(struct parisc_device *dev)
 	return 0;
 }
 
-static struct parisc_device_id parport_tbl[] = {
+static struct parisc_device_id parport_tbl[] __initconst = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x74 },
 	{ 0, }
 };
 
 MODULE_DEVICE_TABLE(parisc, parport_tbl);
 
-static struct parisc_driver parport_driver = {
+static struct parisc_driver parport_driver __refdata = {
 	.name		= "Parallel",
 	.id_table	= parport_tbl,
 	.probe		= parport_init_chip,
-	.remove		= parport_remove_chip,
+	.remove		= __exit_p(parport_remove_chip),
 };
 
 int parport_gsc_init(void)
-- 
2.1.0

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From - Thu Nov 08 21:40:14 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 04/14] parisc/mux: Fix section mismatches
Date: Mon, 21 Aug 2017 22:22:51 +0200
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Signed-off-by: Helge Deller <deller@gmx.de>
---
 drivers/tty/serial/mux.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/tty/serial/mux.c b/drivers/tty/serial/mux.c
index 8a4be4b..80c8105 100644
--- a/drivers/tty/serial/mux.c
+++ b/drivers/tty/serial/mux.c
@@ -503,7 +503,7 @@ static int __init mux_probe(struct parisc_device *dev)
 	return 0;
 }
 
-static int mux_remove(struct parisc_device *dev)
+static int __exit mux_remove(struct parisc_device *dev)
 {
 	int i, j;
 	int port_count = (long)dev_get_drvdata(&dev->dev);
@@ -536,13 +536,13 @@ static int mux_remove(struct parisc_device *dev)
  * This table only contains the parisc_device_id of known builtin mux
  * devices.  All other mux cards will be detected by the generic mux_tbl.
  */
-static struct parisc_device_id builtin_mux_tbl[] = {
+static struct parisc_device_id builtin_mux_tbl[] __initconst = {
 	{ HPHW_A_DIRECT, HVERSION_REV_ANY_ID, 0x15, 0x0000D }, /* All K-class */
 	{ HPHW_A_DIRECT, HVERSION_REV_ANY_ID, 0x44, 0x0000D }, /* E35, E45, and E55 */
 	{ 0, }
 };
 
-static struct parisc_device_id mux_tbl[] = {
+static struct parisc_device_id mux_tbl[] __initconst = {
 	{ HPHW_A_DIRECT, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0000D },
 	{ 0, }
 };
@@ -550,18 +550,18 @@ static struct parisc_device_id mux_tbl[] = {
 MODULE_DEVICE_TABLE(parisc, builtin_mux_tbl);
 MODULE_DEVICE_TABLE(parisc, mux_tbl);
 
-static struct parisc_driver builtin_serial_mux_driver = {
+static struct parisc_driver builtin_serial_mux_driver __refdata = {
 	.name =		"builtin_serial_mux",
 	.id_table =	builtin_mux_tbl,
 	.probe =	mux_probe,
-	.remove =       mux_remove,
+	.remove =       __exit_p(mux_remove),
 };
 
-static struct parisc_driver serial_mux_driver = {
+static struct parisc_driver serial_mux_driver __refdata = {
 	.name =		"serial_mux",
 	.id_table =	mux_tbl,
 	.probe =	mux_probe,
-	.remove =       mux_remove,
+	.remove =       __exit_p(mux_remove),
 };
 
 /**
-- 
2.1.0

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 01/14] parisc: Add support for self-extracting kernel
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Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/Kconfig                       |   6 +
 arch/parisc/Makefile                      |  16 +-
 arch/parisc/boot/.gitignore               |   2 +
 arch/parisc/boot/Makefile                 |  26 +++
 arch/parisc/boot/compressed/.gitignore    |   3 +
 arch/parisc/boot/compressed/Makefile      |  86 +++++++++
 arch/parisc/boot/compressed/head.S        |  85 +++++++++
 arch/parisc/boot/compressed/misc.c        | 301 ++++++++++++++++++++++++++++++
 arch/parisc/boot/compressed/vmlinux.lds.S | 101 ++++++++++
 arch/parisc/boot/compressed/vmlinux.scr   |  10 +
 arch/parisc/boot/install.sh               |  65 +++++++
 arch/parisc/include/asm/page.h            |   4 +
 arch/parisc/include/asm/pdc.h             |   2 +
 arch/parisc/kernel/firmware.c             |  15 +-
 arch/parisc/kernel/real2.S                |   4 +
 15 files changed, 722 insertions(+), 4 deletions(-)
 create mode 100644 arch/parisc/boot/.gitignore
 create mode 100644 arch/parisc/boot/Makefile
 create mode 100644 arch/parisc/boot/compressed/.gitignore
 create mode 100644 arch/parisc/boot/compressed/Makefile
 create mode 100644 arch/parisc/boot/compressed/head.S
 create mode 100644 arch/parisc/boot/compressed/misc.c
 create mode 100644 arch/parisc/boot/compressed/vmlinux.lds.S
 create mode 100644 arch/parisc/boot/compressed/vmlinux.scr
 create mode 100644 arch/parisc/boot/install.sh

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index dda1f55..3109541 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -17,6 +17,12 @@ config PARISC
 	select BUG
 	select BUILDTIME_EXTABLE_SORT
 	select HAVE_PERF_EVENTS
+	select HAVE_KERNEL_BZIP2
+	select HAVE_KERNEL_GZIP
+	select HAVE_KERNEL_LZ4
+	select HAVE_KERNEL_LZMA
+	select HAVE_KERNEL_LZO
+	select HAVE_KERNEL_XZ
 	select GENERIC_ATOMIC64 if !64BIT
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PCI_IOMAP
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 75cb451..58fae5d 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -24,15 +24,20 @@ KBUILD_DEFCONFIG := default_defconfig
 NM		= sh $(srctree)/arch/parisc/nm
 CHECKFLAGS	+= -D__hppa__=1
 LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
+export LIBGCC
 
 ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
 CC_ARCHES	= hppa64
+LD_BFD		:= elf64-hppa-linux
 else # 32-bit
 CC_ARCHES	= hppa hppa2.0 hppa1.1
+LD_BFD		:= elf32-hppa-linux
 endif
 
+export LD_BFD
+
 ifneq ($(SUBARCH),$(UTS_MACHINE))
 	ifeq ($(CROSS_COMPILE),)
 		CC_SUFFIXES = linux linux-gnu unknown-linux-gnu
@@ -88,6 +93,8 @@ libs-y	+= arch/parisc/lib/ $(LIBGCC)
 
 drivers-$(CONFIG_OPROFILE)		+= arch/parisc/oprofile/
 
+boot	:= arch/parisc/boot
+
 PALO := $(shell if (which palo 2>&1); then : ; \
 	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
 	fi)
@@ -116,11 +123,14 @@ INSTALL_TARGETS = zinstall install
 
 PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
 
-bzImage zImage: vmlinuz
+zImage: vmlinuz
 Image: vmlinux
 
-vmlinuz: vmlinux
-	@gzip -cf -9 $< > $@
+bzImage: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+vmlinuz: bzImage
+	$(OBJCOPY) $(boot)/bzImage $@
 
 install:
 	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
diff --git a/arch/parisc/boot/.gitignore b/arch/parisc/boot/.gitignore
new file mode 100644
index 0000000..017d591
--- /dev/null
+++ b/arch/parisc/boot/.gitignore
@@ -0,0 +1,2 @@
+image
+bzImage
diff --git a/arch/parisc/boot/Makefile b/arch/parisc/boot/Makefile
new file mode 100644
index 0000000..cad68a5
--- /dev/null
+++ b/arch/parisc/boot/Makefile
@@ -0,0 +1,26 @@
+#
+# Makefile for the linux parisc-specific parts of the boot image creator.
+#
+
+COMPILE_VERSION := __linux_compile_version_id__`hostname |  \
+			tr -c '[0-9A-Za-z]' '_'`__`date | \
+			tr -c '[0-9A-Za-z]' '_'`_t
+
+ccflags-y  := -DCOMPILE_VERSION=$(COMPILE_VERSION) -gstabs -I.
+
+targets := image
+targets += bzImage
+subdir- := compressed
+
+$(obj)/image: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/bzImage: $(obj)/compressed/vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/compressed/vmlinux: FORCE
+	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
+
+install: $(CONFIGURE) $(obj)/bzImage
+	sh -x  $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
+	      System.map "$(INSTALL_PATH)"
diff --git a/arch/parisc/boot/compressed/.gitignore b/arch/parisc/boot/compressed/.gitignore
new file mode 100644
index 0000000..ae06b9b
--- /dev/null
+++ b/arch/parisc/boot/compressed/.gitignore
@@ -0,0 +1,3 @@
+sizes.h
+vmlinux
+vmlinux.lds
diff --git a/arch/parisc/boot/compressed/Makefile b/arch/parisc/boot/compressed/Makefile
new file mode 100644
index 0000000..5450a11
--- /dev/null
+++ b/arch/parisc/boot/compressed/Makefile
@@ -0,0 +1,86 @@
+#
+# linux/arch/parisc/boot/compressed/Makefile
+#
+# create a compressed self-extracting vmlinux image from the original vmlinux
+#
+
+KCOV_INSTRUMENT := n
+GCOV_PROFILE := n
+UBSAN_SANITIZE := n
+
+targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2
+targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4
+targets += misc.o piggy.o sizes.h head.o real2.o firmware.o
+
+KBUILD_CFLAGS := -D__KERNEL__ -O2 -DBOOTLOADER
+KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
+KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks
+KBUILD_CFLAGS += -fno-PIE -mno-space-regs -mdisable-fpregs
+ifndef CONFIG_64BIT
+KBUILD_CFLAGS += -mfast-indirect-calls
+endif
+
+OBJECTS += $(obj)/head.o $(obj)/real2.o $(obj)/firmware.o $(obj)/misc.o $(obj)/piggy.o
+
+# LDFLAGS_vmlinux := -X --whole-archive -e startup -T
+LDFLAGS_vmlinux := -X -e startup --as-needed -T
+$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS) $(LIBGCC)
+	$(call if_changed,ld)
+
+sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\|parisc_kernel_start\)$$/\#define SZ\2 0x\1/p'
+
+quiet_cmd_sizes = GEN $@
+      cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@
+
+$(obj)/sizes.h: vmlinux
+	$(call if_changed,sizes)
+
+AFLAGS_head.o += -I$(objtree)/$(obj) -DBOOTLOADER
+$(obj)/head.o: $(obj)/sizes.h
+
+CFLAGS_misc.o += -I$(objtree)/$(obj)
+$(obj)/misc.o: $(obj)/sizes.h
+
+$(obj)/firmware.o: $(obj)/firmware.c
+$(obj)/firmware.c: $(srctree)/arch/$(SRCARCH)/kernel/firmware.c
+	$(call cmd,shipped)
+
+AFLAGS_real2.o += -DBOOTLOADER
+$(obj)/real2.o: $(obj)/real2.S
+$(obj)/real2.S: $(srctree)/arch/$(SRCARCH)/kernel/real2.S
+	$(call cmd,shipped)
+
+$(obj)/misc.o: $(obj)/sizes.h
+
+CPPFLAGS_vmlinux.lds += -I$(objtree)/$(obj) -DBOOTLOADER
+$(obj)/vmlinux.lds: $(obj)/sizes.h
+
+OBJCOPYFLAGS_vmlinux.bin := -O binary -R .comment -S
+$(obj)/vmlinux.bin: vmlinux
+	$(call if_changed,objcopy)
+
+vmlinux.bin.all-y := $(obj)/vmlinux.bin
+
+suffix-$(CONFIG_KERNEL_GZIP)  := gz
+suffix-$(CONFIG_KERNEL_BZIP2) := bz2
+suffix-$(CONFIG_KERNEL_LZ4)  := lz4
+suffix-$(CONFIG_KERNEL_LZMA)  := lzma
+suffix-$(CONFIG_KERNEL_LZO)  := lzo
+suffix-$(CONFIG_KERNEL_XZ)  := xz
+
+$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y)
+	$(call if_changed,gzip)
+$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y)
+	$(call if_changed,bzip2)
+$(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y)
+	$(call if_changed,lz4)
+$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y)
+	$(call if_changed,lzma)
+$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y)
+	$(call if_changed,lzo)
+$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y)
+	$(call if_changed,xzkern)
+
+LDFLAGS_piggy.o := -r --format binary --oformat $(LD_BFD) -T
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y)
+	$(call if_changed,ld)
diff --git a/arch/parisc/boot/compressed/head.S b/arch/parisc/boot/compressed/head.S
new file mode 100644
index 0000000..5aba20f
--- /dev/null
+++ b/arch/parisc/boot/compressed/head.S
@@ -0,0 +1,85 @@
+/*
+ * Startup glue code to uncompress the kernel
+ *
+ *   (C) 2017 Helge Deller <deller@gmx.de>
+ */
+
+#include <linux/init.h>
+#include <linux/linkage.h>
+#include <asm/asm-offsets.h>
+#include <asm/page.h>
+#include <asm/psw.h>
+#include <asm/pdc.h>
+#include <asm/assembly.h>
+#include "sizes.h"
+
+#define BOOTADDR(x)	(x)
+
+#ifndef CONFIG_64BIT
+	.import	$global$		/* forward declaration */
+#endif /*!CONFIG_64BIT*/
+
+	__HEAD
+
+ENTRY(startup)
+	 .level LEVEL
+
+#define PSW_W_SM	0x200
+#define PSW_W_BIT       36
+
+	;! nuke the W bit, saving original value
+	.level 2.0
+	rsm	PSW_W_SM, %r1
+
+	.level 1.1
+	extrw,u	%r1, PSW_W_BIT-32, 1, %r1
+	copy	%r1, %arg0
+
+	/* Make sure sr4-sr7 are set to zero for the kernel address space */
+	mtsp    %r0,%sr4
+	mtsp    %r0,%sr5
+	mtsp    %r0,%sr6
+	mtsp    %r0,%sr7
+
+	/* Clear BSS */
+
+	.import _bss,data
+	.import _ebss,data
+
+	load32	BOOTADDR(_bss),%r3
+	load32	BOOTADDR(_ebss),%r4
+	ldo	FRAME_SIZE(%r4),%sp	/* stack at end of bss */
+$bss_loop:
+	cmpb,<<,n %r3,%r4,$bss_loop
+	stw,ma	%r0,4(%r3)
+
+	/* Initialize the global data pointer */
+	loadgp
+
+	/* arg0..arg4 were set by palo. */
+	copy	%arg1, %r6		/* command line */
+	copy	%arg2, %r7		/* rd-start */
+	copy	%arg3, %r8		/* rd-end */
+	load32	BOOTADDR(decompress_kernel),%r3
+
+#ifdef CONFIG_64BIT
+	.level LEVEL
+	ssm	PSW_W_SM, %r0		/* set W-bit */
+	depdi	0, 31, 32, %r3
+#endif
+	load32	BOOTADDR(startup_continue), %r2
+	bv,n	0(%r3)
+
+startup_continue:
+#ifdef CONFIG_64BIT
+	.level LEVEL
+	rsm	PSW_W_SM, %r0		/* clear W-bit */
+#endif
+
+	load32	KERNEL_BINARY_TEXT_START, %arg0 /* free mem */
+	copy	%r6, %arg1		/* command line */
+	copy	%r7, %arg2		/* rd-start */
+	copy	%r8, %arg3		/* rd-end */
+
+	bv,n	0(%ret0)
+END(startup)
diff --git a/arch/parisc/boot/compressed/misc.c b/arch/parisc/boot/compressed/misc.c
new file mode 100644
index 0000000..248e232
--- /dev/null
+++ b/arch/parisc/boot/compressed/misc.c
@@ -0,0 +1,301 @@
+/*
+ * Definitions and wrapper functions for kernel decompressor
+ *
+ *   (C) 2017 Helge Deller <deller@gmx.de>
+ */
+
+#include <linux/uaccess.h>
+#include <asm/unaligned.h>
+#include <asm/page.h>
+#include "sizes.h"
+
+/*
+ * gzip declarations
+ */
+#define STATIC static
+
+#undef memmove
+#define memmove memmove
+#define memzero(s, n) memset((s), 0, (n))
+
+#define malloc	malloc_gzip
+#define free	free_gzip
+
+/* Symbols defined by linker scripts */
+extern char input_data[];
+extern int input_len;
+extern __le32 output_len;	/* at unaligned address, little-endian */
+extern char _text, _end;
+extern char _bss, _ebss;
+extern char _startcode_end;
+extern void startup_continue(void *entry, unsigned long cmdline,
+	unsigned long rd_start, unsigned long rd_end) __noreturn;
+
+void error(char *m) __noreturn;
+
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+
+#ifdef CONFIG_KERNEL_GZIP
+#include "../../../../lib/decompress_inflate.c"
+#endif
+
+#ifdef CONFIG_KERNEL_BZIP2
+#include "../../../../lib/decompress_bunzip2.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZ4
+#include "../../../../lib/decompress_unlz4.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+
+#ifdef CONFIG_KERNEL_XZ
+#include "../../../../lib/decompress_unxz.c"
+#endif
+
+void *memmove(void *dest, const void *src, size_t n)
+{
+	const char *s = src;
+	char *d = dest;
+
+	if (d <= s) {
+		while (n--)
+			*d++ = *s++;
+	} else {
+		d += n;
+		s += n;
+		while (n--)
+			*--d = *--s;
+	}
+	return dest;
+}
+
+void *memset(void *s,int c, size_t count)
+{
+	char *xs = (char *)s;
+
+	while (count--)
+		*xs++ = c;
+	return s;
+}
+
+void *memcpy(void *d, const void *s, size_t len)
+{
+	char *dest = (char *)d;
+	const char *source = (const char *)s;
+
+	while (len--)
+		*dest++ = *source++;
+	return d;
+}
+
+size_t strlen(const char *s)
+{
+        const char *sc;
+
+        for (sc = s; *sc != '\0'; ++sc)
+                /* nothing */;
+        return sc - s;
+}
+
+char *strchr(const char *s, int c)
+{
+	while (*s) {
+		if (*s == (char)c)
+			return (char *)s;
+		++s;
+	}
+	return NULL;
+}
+
+int puts(const char *s)
+{
+    const char *nuline = s;
+
+    while ((nuline = strchr(s, '\n')) != NULL)
+    {
+	if (nuline != s)
+		pdc_iodc_print(s, nuline - s);
+	pdc_iodc_print("\r\n", 2);
+	s = nuline + 1;
+    }
+    if (*s != '\0')
+	pdc_iodc_print(s, strlen(s));
+    return 0;
+}
+
+static int putchar(int c)
+{
+    char buf[2];
+
+    buf[0] = c;
+    buf[1] = '\0';
+    puts(buf);
+    return c;
+}
+
+void __noreturn error(char *x)
+{
+	puts("\n\n");
+	puts(x);
+	puts("\n\n -- System halted");
+	while (1) /* wait forever. */;
+}
+
+static int print_hex(unsigned long num)
+{
+	const char hex[] = "0123456789abcdef";
+	char str[40];
+	int i = sizeof(str)-1;
+
+	str[i--] = '\0';
+	do {
+		str[i--] = hex[num & 0x0f];
+		num >>= 4;
+	} while (num);
+
+	str[i--] = 'x';
+	str[i] = '0';
+	puts(&str[i]);
+
+	return 0;
+}
+
+int printk(const char *fmt, ...)
+{
+	va_list args;
+	int i = 0;
+
+	va_start(args, fmt);
+
+	while (fmt[i]) {
+		if (fmt[i] != '%') {
+put:
+			putchar(fmt[i++]);
+			continue;
+		}
+
+		if (fmt[++i] == '%')
+			goto put;
+		++i;
+		print_hex(va_arg(args, unsigned long));
+	}
+
+	va_end(args);
+	return 0;
+}
+
+/* helper functions for libgcc */
+void abort(void)
+{
+	error("abort() called.");
+}
+
+#undef malloc
+void *malloc(size_t size)
+{
+	return malloc_gzip(size);
+}
+
+#undef free
+void free(void *ptr)
+{
+	return free_gzip(ptr);
+}
+
+
+static void flush_data_cache(char *start, unsigned long length)
+{
+    char *end = start + length;
+
+    do
+    {
+	asm volatile("fdc 0(%0)" : : "r" (start));
+	asm volatile("fic 0(%%sr0,%0)" : : "r" (start));
+	start += 16;
+    } while (start < end);
+    asm volatile("fdc 0(%0)" : : "r" (end));
+
+    asm ("sync");
+}
+
+unsigned long decompress_kernel(unsigned int started_wide,
+		unsigned int command_line,
+		const unsigned int rd_start,
+		const unsigned int rd_end)
+{
+	char *output;
+	unsigned long len, len_all;
+
+#ifdef CONFIG_64BIT
+	parisc_narrow_firmware = 0;
+#endif
+
+	set_firmware_width_unlocked();
+
+	putchar('U');	/* if you get this p and no more, string storage */
+			/* in $GLOBAL$ is wrong or %dp is wrong */
+	puts("ncompressing ...\n");
+
+	output = (char *) KERNEL_BINARY_TEXT_START;
+	len_all = __pa(SZ_end) - __pa(SZparisc_kernel_start);
+
+	if ((unsigned long) &_startcode_end > (unsigned long) output)
+		error("Bootcode overlaps kernel code");
+
+	len = get_unaligned_le32(&output_len);
+	if (len > len_all)
+		error("Output len too big.");
+	else
+		memset(&output[len], 0, len_all - len);
+
+	/*
+	 * Initialize free_mem_ptr and free_mem_end_ptr.
+	 */
+	free_mem_ptr = (unsigned long) &_ebss;
+	free_mem_ptr += 2*1024*1024;	/* leave 2 MB for stack */
+
+	/* Limit memory for bootoader to 1GB */
+	#define ARTIFICIAL_LIMIT (1*1024*1024*1024)
+	free_mem_end_ptr = PAGE0->imm_max_mem;
+	if (free_mem_end_ptr > ARTIFICIAL_LIMIT)
+		free_mem_end_ptr = ARTIFICIAL_LIMIT;
+
+#ifdef CONFIG_BLK_DEV_INITRD
+	/* if we have ramdisk this is at end of memory */
+	if (rd_start && rd_start < free_mem_end_ptr)
+		free_mem_end_ptr = rd_start;
+#endif
+
+#ifdef DEBUG
+	printk("startcode_end = %x\n", &_startcode_end);
+	printk("commandline   = %x\n", command_line);
+	printk("rd_start      = %x\n", rd_start);
+	printk("rd_end        = %x\n", rd_end);
+
+	printk("free_ptr      = %x\n", free_mem_ptr);
+	printk("free_ptr_end  = %x\n", free_mem_end_ptr);
+
+	printk("input_data    = %x\n", input_data);
+	printk("input_len     = %x\n", input_len);
+	printk("output        = %x\n", output);
+	printk("output_len    = %x\n", len);
+	printk("output_max    = %x\n", len_all);
+#endif
+
+	__decompress(input_data, input_len, NULL, NULL,
+			output, 0, NULL, error);
+
+	flush_data_cache(output, len);
+
+	printk("Booting kernel ...\n\n");
+
+	return (unsigned long) output;
+}
diff --git a/arch/parisc/boot/compressed/vmlinux.lds.S b/arch/parisc/boot/compressed/vmlinux.lds.S
new file mode 100644
index 0000000..a4ce331
--- /dev/null
+++ b/arch/parisc/boot/compressed/vmlinux.lds.S
@@ -0,0 +1,101 @@
+#include <asm-generic/vmlinux.lds.h>
+#include <asm/page.h>
+#include "sizes.h"
+
+#ifndef CONFIG_64BIT
+OUTPUT_FORMAT("elf32-hppa-linux")
+OUTPUT_ARCH(hppa)
+#else
+OUTPUT_FORMAT("elf64-hppa-linux")
+OUTPUT_ARCH(hppa:hppa2.0w)
+#endif
+
+ENTRY(startup)
+
+SECTIONS
+{
+	/* palo loads at 0x60000 */
+	/* loaded kernel will move to 0x10000 */
+	. = 0xe0000;    /* should not overwrite palo code */
+
+	.head.text : {
+		_head = . ;
+		HEAD_TEXT
+		_ehead = . ;
+	}
+
+	/* keep __gp below 0x1000000 */
+#ifdef CONFIG_64BIT
+	. = ALIGN(16);
+	/* Linkage tables */
+	.opd : {
+		*(.opd)
+	} PROVIDE (__gp = .);
+	.plt : {
+		*(.plt)
+	}
+	.dlt : {
+		*(.dlt)
+	}
+#endif
+	_startcode_end = .;
+
+	/* bootloader code and data starts behind area of extracted kernel */
+	. = (SZ_end - SZparisc_kernel_start + KERNEL_BINARY_TEXT_START);
+
+	/* align on next page boundary */
+	. = ALIGN(4096);
+	.text :	{
+		_text = .;	/* Text */
+		*(.text)
+		*(.text.*)
+		_etext = . ;
+	}
+	. = ALIGN(8);
+	.data :	{
+		_data = . ;
+		*(.data)
+		*(.data.*)
+		_edata = . ;
+	}
+	. = ALIGN(8);
+	.rodata : {
+		_rodata = . ;
+		*(.rodata)	 /* read-only data */
+		*(.rodata.*)
+		_erodata = . ;
+	}
+	. = ALIGN(8);
+	.rodata.compressed : {
+		*(.rodata.compressed)
+	}
+	. = ALIGN(8);
+	.bss : {
+		_bss = . ;
+		*(.bss)
+		*(.bss.*)
+		*(COMMON)
+		. = ALIGN(4096);
+		_ebss = .;
+	}
+
+	STABS_DEBUG
+	.note 0 : { *(.note) }
+
+	/* Sections to be discarded */
+	DISCARDS
+	/DISCARD/ : {
+#ifdef CONFIG_64BIT
+		/* temporary hack until binutils is fixed to not emit these
+		 * for static binaries
+		 */
+		*(.PARISC.unwind)	/* no unwind data */
+		*(.interp)
+		*(.dynsym)
+		*(.dynstr)
+		*(.dynamic)
+		*(.hash)
+		*(.gnu.hash)
+#endif
+	}
+}
diff --git a/arch/parisc/boot/compressed/vmlinux.scr b/arch/parisc/boot/compressed/vmlinux.scr
new file mode 100644
index 0000000..dac2d14
--- /dev/null
+++ b/arch/parisc/boot/compressed/vmlinux.scr
@@ -0,0 +1,10 @@
+SECTIONS
+{
+  .rodata.compressed : {
+	input_len = .;
+	LONG(input_data_end - input_data) input_data = .;
+	*(.data)
+	output_len = . - 4; /* can be at unaligned address */
+	input_data_end = .;
+	}
+}
diff --git a/arch/parisc/boot/install.sh b/arch/parisc/boot/install.sh
new file mode 100644
index 0000000..8f7c365
--- /dev/null
+++ b/arch/parisc/boot/install.sh
@@ -0,0 +1,65 @@
+#!/bin/sh
+#
+# arch/parisc/install.sh, derived from arch/i386/boot/install.sh
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1995 by Linus Torvalds
+#
+# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
+#
+# "make install" script for i386 architecture
+#
+# Arguments:
+#   $1 - kernel version
+#   $2 - kernel image file
+#   $3 - kernel map file
+#   $4 - default install path (blank if root directory)
+#
+
+verify () {
+	if [ ! -f "$1" ]; then
+		echo ""                                                   1>&2
+		echo " *** Missing file: $1"                              1>&2
+		echo ' *** You need to run "make" before "make install".' 1>&2
+		echo ""                                                   1>&2
+		exit 1
+	fi
+}
+
+# Make sure the files actually exist
+
+verify "$2"
+verify "$3"
+
+# User may have a custom install script
+
+if [ -n "${INSTALLKERNEL}" ]; then
+  if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
+  if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
+fi
+
+# Default install
+
+if [ "$(basename $2)" = "zImage" ]; then
+# Compressed install
+  echo "Installing compressed kernel"
+  base=vmlinuz
+else
+# Normal install
+  echo "Installing normal kernel"
+  base=vmlinux
+fi
+
+if [ -f $4/$base-$1 ]; then
+  mv $4/$base-$1 $4/$base-$1.old
+fi
+cat $2 > $4/$base-$1
+
+# Install system map file
+if [ -f $4/System.map-$1 ]; then
+  mv $4/System.map-$1 $4/System.map-$1.old
+fi
+cp $3 $4/System.map-$1
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index 80e742a..bfed09d 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -116,11 +116,15 @@ extern int npmem_ranges;
 /* This governs the relationship between virtual and physical addresses.
  * If you alter it, make sure to take care of our various fixed mapping
  * segments in fixmap.h */
+#if defined(BOOTLOADER)
+#define __PAGE_OFFSET	(0)		/* bootloader uses physical addresses */
+#else
 #ifdef CONFIG_64BIT
 #define __PAGE_OFFSET	(0x40000000)	/* 1GB */
 #else
 #define __PAGE_OFFSET	(0x10000000)	/* 256MB */
 #endif
+#endif /* BOOTLOADER */
 
 #define PAGE_OFFSET		((unsigned long)__PAGE_OFFSET)
 
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 7569627..26b4455 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -5,6 +5,8 @@
 
 #if !defined(__ASSEMBLY__)
 
+extern int parisc_narrow_firmware;
+
 extern int pdc_type;
 extern unsigned long parisc_cell_num; /* cell number the CPU runs on (PAT) */
 extern unsigned long parisc_cell_loc; /* cell location of CPU (PAT)	   */
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index f622a31..41efeed 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -69,7 +69,15 @@
 #include <asm/pdcpat.h>
 #include <asm/processor.h>	/* for boot_cpu_data */
 
+#if defined(BOOTLOADER)
+# undef  spin_lock_irqsave
+# define spin_lock_irqsave(a,b) b = 1
+# undef  spin_unlock_irqrestore
+# define spin_unlock_irqrestore(a,b)
+#else
 static DEFINE_SPINLOCK(pdc_lock);
+#endif
+
 extern unsigned long pdc_result[NUM_PDC_RESULT];
 extern unsigned long pdc_result2[NUM_PDC_RESULT];
 
@@ -186,6 +194,8 @@ void set_firmware_width(void)
 }
 #endif /*CONFIG_64BIT*/
 
+
+#if !defined(BOOTLOADER)
 /**
  * pdc_emergency_unlock - Unlock the linux pdc lock
  *
@@ -1143,6 +1153,8 @@ void pdc_io_reset_devices(void)
 	spin_unlock_irqrestore(&pdc_lock, flags);
 }
 
+#endif /* defined(BOOTLOADER) */
+
 /* locked by pdc_console_lock */
 static int __attribute__((aligned(8)))   iodc_retbuf[32];
 static char __attribute__((aligned(64))) iodc_dbuf[4096];
@@ -1187,6 +1199,7 @@ int pdc_iodc_print(const unsigned char *str, unsigned count)
 	return i;
 }
 
+#if !defined(BOOTLOADER)
 /**
  * pdc_iodc_getc - Read a character (non-blocking) from the PDC console.
  *
@@ -1524,6 +1537,7 @@ int pdc_pat_mem_get_dimm_phys_location(
 	return retval;
 }
 #endif /* CONFIG_64BIT */
+#endif /* defined(BOOTLOADER) */
 
 
 /***************** 32-bit real-mode calls ***********/
@@ -1633,4 +1647,3 @@ long real64_call(unsigned long fn, ...)
 }
 
 #endif /* CONFIG_64BIT */
-
diff --git a/arch/parisc/kernel/real2.S b/arch/parisc/kernel/real2.S
index 1db58e5..cc99634 100644
--- a/arch/parisc/kernel/real2.S
+++ b/arch/parisc/kernel/real2.S
@@ -162,6 +162,7 @@ ENDPROC_CFI(restore_control_regs)
 	.text
 	.align 128
 ENTRY_CFI(rfi_virt2real)
+#if !defined(BOOTLOADER)
 	/* switch to real mode... */
 	rsm		PSW_SM_I,%r0
 	load32		PA(rfi_v2r_1), %r1
@@ -191,6 +192,7 @@ ENTRY_CFI(rfi_virt2real)
 	nop
 rfi_v2r_1:
 	tophys_r1 %r2
+#endif /* defined(BOOTLOADER) */
 	bv	0(%r2)
 	nop
 ENDPROC_CFI(rfi_virt2real)
@@ -198,6 +200,7 @@ ENDPROC_CFI(rfi_virt2real)
 	.text
 	.align 128
 ENTRY_CFI(rfi_real2virt)
+#if !defined(BOOTLOADER)
 	rsm		PSW_SM_I,%r0
 	load32		(rfi_r2v_1), %r1
 	nop
@@ -226,6 +229,7 @@ ENTRY_CFI(rfi_real2virt)
 	nop
 rfi_r2v_1:
 	tovirt_r1 %r2
+#endif /* defined(BOOTLOADER) */
 	bv	0(%r2)
 	nop
 ENDPROC_CFI(rfi_real2virt)
-- 
2.1.0

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Signed-off-by: Helge Deller <deller@gmx.de>
---
 drivers/parisc/asp.c         | 4 ++--
 drivers/parisc/ccio-dma.c    | 4 ++--
 drivers/parisc/ccio-rm-dma.c | 6 +++---
 drivers/parisc/dino.c        | 4 ++--
 drivers/parisc/eisa.c        | 4 ++--
 drivers/parisc/hppb.c        | 6 +++---
 drivers/parisc/lasi.c        | 4 ++--
 drivers/parisc/lba_pci.c     | 4 ++--
 drivers/parisc/sba_iommu.c   | 6 +++---
 drivers/parisc/superio.c     | 4 ++--
 drivers/parisc/wax.c         | 4 ++--
 11 files changed, 25 insertions(+), 25 deletions(-)

diff --git a/drivers/parisc/asp.c b/drivers/parisc/asp.c
index 6a1ab25..7c143f0 100644
--- a/drivers/parisc/asp.c
+++ b/drivers/parisc/asp.c
@@ -118,12 +118,12 @@ static int __init asp_init_chip(struct parisc_device *dev)
 	return ret;
 }
 
-static struct parisc_device_id asp_tbl[] = {
+static struct parisc_device_id asp_tbl[] __initconst = {
 	{ HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00070 },
 	{ 0, }
 };
 
-struct parisc_driver asp_driver = {
+struct parisc_driver asp_driver __refdata = {
 	.name =		"asp",
 	.id_table =	asp_tbl,
 	.probe =	asp_init_chip,
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 6aa1e7f..64d491e 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1241,7 +1241,7 @@ ccio_get_iotlb_size(struct parisc_device *dev)
 #endif /* 0 */
 
 /* We *can't* support JAVA (T600). Venture there at your own risk. */
-static const struct parisc_device_id ccio_tbl[] = {
+static struct parisc_device_id ccio_tbl[] __initconst = {
 	{ HPHW_IOA, HVERSION_REV_ANY_ID, U2_IOA_RUNWAY, 0xb }, /* U2 */
 	{ HPHW_IOA, HVERSION_REV_ANY_ID, UTURN_IOA_RUNWAY, 0xb }, /* UTurn */
 	{ 0, }
@@ -1249,7 +1249,7 @@ static const struct parisc_device_id ccio_tbl[] = {
 
 static int ccio_probe(struct parisc_device *dev);
 
-static struct parisc_driver ccio_driver = {
+static struct parisc_driver ccio_driver __refdata = {
 	.name =		"ccio",
 	.id_table =	ccio_tbl,
 	.probe =	ccio_probe,
diff --git a/drivers/parisc/ccio-rm-dma.c b/drivers/parisc/ccio-rm-dma.c
index 1bf9880..93cded9 100644
--- a/drivers/parisc/ccio-rm-dma.c
+++ b/drivers/parisc/ccio-rm-dma.c
@@ -163,7 +163,7 @@ static struct pci_dma_ops ccio_ops = {
 ** If so, initialize the chip and tell other partners in crime they
 ** have work to do.
 */
-static int
+static int __init
 ccio_probe(struct parisc_device *dev)
 {
 	printk(KERN_INFO "%s found %s at 0x%lx\n", MODULE_NAME,
@@ -184,13 +184,13 @@ ccio_probe(struct parisc_device *dev)
 	return 0;
 }
 
-static struct parisc_device_id ccio_tbl[] = {
+static struct parisc_device_id ccio_tbl[] __initconst = {
 	{ HPHW_BCPORT, HVERSION_REV_ANY_ID, U2_BC_GSC, 0xc },
 	{ HPHW_BCPORT, HVERSION_REV_ANY_ID, UTURN_BC_GSC, 0xc },
 	{ 0, }
 };
 
-static struct parisc_driver ccio_driver = {
+static struct parisc_driver ccio_driver __refdata = {
 	.name =		"U2/Uturn",
 	.id_table =	ccio_tbl,
 	.probe =	ccio_probe,
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index ed92c12..87de05f 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -1022,7 +1022,7 @@ static int __init dino_probe(struct parisc_device *dev)
  * and 725 firmware misreport it as 0x08080 for no adequately explained
  * reason.
  */
-static struct parisc_device_id dino_tbl[] = {
+static struct parisc_device_id dino_tbl[] __initconst = {
 	{ HPHW_A_DMA, HVERSION_REV_ANY_ID, 0x004, 0x0009D },/* Card-mode Dino */
 	{ HPHW_A_DMA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x08080 }, /* XXX */
 	{ HPHW_BRIDGE, HVERSION_REV_ANY_ID, 0x680, 0xa }, /* Bridge-mode Dino */
@@ -1031,7 +1031,7 @@ static struct parisc_device_id dino_tbl[] = {
 	{ 0, }
 };
 
-static struct parisc_driver dino_driver = {
+static struct parisc_driver dino_driver __refdata = {
 	.name =		"dino",
 	.id_table =	dino_tbl,
 	.probe =	dino_probe,
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 7e2f6d5..9ff434f 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -393,7 +393,7 @@ static int __init eisa_probe(struct parisc_device *dev)
 	return result;
 }
 
-static const struct parisc_device_id eisa_tbl[] = {
+static const struct parisc_device_id eisa_tbl[] __initconst = {
 	{ HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00076 }, /* Mongoose */
 	{ HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00090 }, /* Wax EISA */
 	{ 0, }
@@ -401,7 +401,7 @@ static const struct parisc_device_id eisa_tbl[] = {
 
 MODULE_DEVICE_TABLE(parisc, eisa_tbl);
 
-static struct parisc_driver eisa_driver = {
+static struct parisc_driver eisa_driver __refdata = {
 	.name =		"eisa_ba",
 	.id_table =	eisa_tbl,
 	.probe =	eisa_probe,
diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c
index 898208e..55e92bb 100644
--- a/drivers/parisc/hppb.c
+++ b/drivers/parisc/hppb.c
@@ -45,7 +45,7 @@ static struct hppb_card hppb_card_head = {
  * (return 1). If so, initialize the chip and tell other partners in crime 
  * they have work to do.
  */
-static int hppb_probe(struct parisc_device *dev)
+static int __init hppb_probe(struct parisc_device *dev)
 {
 	int status;
 	struct hppb_card *card = &hppb_card_head;
@@ -81,7 +81,7 @@ static int hppb_probe(struct parisc_device *dev)
         return 0;
 }
 
-static struct parisc_device_id hppb_tbl[] = {
+static struct parisc_device_id hppb_tbl[] __initconst = {
         { HPHW_BCPORT, HVERSION_REV_ANY_ID, 0x500, 0xc }, /* E25 and K */
         { HPHW_BCPORT, 0x0, 0x501, 0xc }, /* E35 */
         { HPHW_BCPORT, 0x0, 0x502, 0xc }, /* E45 */
@@ -89,7 +89,7 @@ static struct parisc_device_id hppb_tbl[] = {
         { 0, }
 };
 
-static struct parisc_driver hppb_driver = {
+static struct parisc_driver hppb_driver __refdata = {
         .name =         "gecko_boa",
         .id_table =     hppb_tbl,
 	.probe =        hppb_probe,
diff --git a/drivers/parisc/lasi.c b/drivers/parisc/lasi.c
index e65727c..4c92254 100644
--- a/drivers/parisc/lasi.c
+++ b/drivers/parisc/lasi.c
@@ -227,12 +227,12 @@ static int __init lasi_init_chip(struct parisc_device *dev)
 	return ret;
 }
 
-static struct parisc_device_id lasi_tbl[] = {
+static struct parisc_device_id lasi_tbl[] __initdata = {
 	{ HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00081 },
 	{ 0, }
 };
 
-struct parisc_driver lasi_driver = {
+struct parisc_driver lasi_driver __refdata = {
 	.name =		"lasi",
 	.id_table =	lasi_tbl,
 	.probe =	lasi_init_chip,
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index bc286cb..b5a3356 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1613,14 +1613,14 @@ lba_driver_probe(struct parisc_device *dev)
 	return 0;
 }
 
-static struct parisc_device_id lba_tbl[] = {
+static struct parisc_device_id lba_tbl[] __initconst = {
 	{ HPHW_BRIDGE, HVERSION_REV_ANY_ID, ELROY_HVERS, 0xa },
 	{ HPHW_BRIDGE, HVERSION_REV_ANY_ID, MERCURY_HVERS, 0xa },
 	{ HPHW_BRIDGE, HVERSION_REV_ANY_ID, QUICKSILVER_HVERS, 0xa },
 	{ 0, }
 };
 
-static struct parisc_driver lba_driver = {
+static struct parisc_driver lba_driver __refdata = {
 	.name =		MODULE_NAME,
 	.id_table =	lba_tbl,
 	.probe =	lba_driver_probe,
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 4086f79..2866542 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1905,7 +1905,7 @@ static const struct file_operations sba_proc_bitmap_fops = {
 };
 #endif /* CONFIG_PROC_FS */
 
-static struct parisc_device_id sba_tbl[] = {
+static struct parisc_device_id sba_tbl[] __initconst = {
 	{ HPHW_IOA, HVERSION_REV_ANY_ID, ASTRO_RUNWAY_PORT, 0xb },
 	{ HPHW_BCPORT, HVERSION_REV_ANY_ID, IKE_MERCED_PORT, 0xc },
 	{ HPHW_BCPORT, HVERSION_REV_ANY_ID, REO_MERCED_PORT, 0xc },
@@ -1916,7 +1916,7 @@ static struct parisc_device_id sba_tbl[] = {
 
 static int sba_driver_callback(struct parisc_device *);
 
-static struct parisc_driver sba_driver = {
+static struct parisc_driver sba_driver __refdata = {
 	.name =		MODULE_NAME,
 	.id_table =	sba_tbl,
 	.probe =	sba_driver_callback,
@@ -1927,7 +1927,7 @@ static struct parisc_driver sba_driver = {
 ** If so, initialize the chip and tell other partners in crime they
 ** have work to do.
 */
-static int sba_driver_callback(struct parisc_device *dev)
+static int __init sba_driver_callback(struct parisc_device *dev)
 {
 	struct sba_device *sba_dev;
 	u32 func_class;
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index deeaed5..8ce3457 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -482,14 +482,14 @@ superio_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	return -ENODEV;
 }
 
-static const struct pci_device_id superio_tbl[] = {
+static struct pci_device_id superio_tbl[] __initconst = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_LIO) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_USB) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415) },
 	{ 0, }
 };
 
-static struct pci_driver superio_driver = {
+static struct pci_driver superio_driver __refdata = {
 	.name =         SUPERIO,
 	.id_table =     superio_tbl,
 	.probe =        superio_probe,
diff --git a/drivers/parisc/wax.c b/drivers/parisc/wax.c
index da9d5ad..636801a 100644
--- a/drivers/parisc/wax.c
+++ b/drivers/parisc/wax.c
@@ -125,14 +125,14 @@ static int __init wax_init_chip(struct parisc_device *dev)
 	return ret;
 }
 
-static struct parisc_device_id wax_tbl[] = {
+static struct parisc_device_id wax_tbl[] __initconst = {
   	{ HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008e },
 	{ 0, }
 };
 
 MODULE_DEVICE_TABLE(parisc, wax_tbl);
 
-struct parisc_driver wax_driver = {
+struct parisc_driver wax_driver __refdata = {
 	.name =		"wax",
 	.id_table =	wax_tbl,
 	.probe =	wax_init_chip,
-- 
2.1.0

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From - Thu Nov 08 21:40:14 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 13/14] parisc/ipmi_si_intf: Fix section mismatches on parisc platform
Date: Mon, 21 Aug 2017 22:23:00 +0200
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        James Bottomley <James.Bottomley@HansenPartnership.com>
To: linux-parisc@vger.kernel.org
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Additionally add a MODULE_DEVICE_TABLE entry so that udev
can load the driver automatically.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 drivers/char/ipmi/ipmi_si_intf.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 9859738..36f47e8 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -2812,7 +2812,7 @@ static struct platform_driver ipmi_driver = {
 };
 
 #ifdef CONFIG_PARISC
-static int ipmi_parisc_probe(struct parisc_device *dev)
+static int __init ipmi_parisc_probe(struct parisc_device *dev)
 {
 	struct smi_info *info;
 	int rv;
@@ -2850,22 +2850,24 @@ static int ipmi_parisc_probe(struct parisc_device *dev)
 	return 0;
 }
 
-static int ipmi_parisc_remove(struct parisc_device *dev)
+static int __exit ipmi_parisc_remove(struct parisc_device *dev)
 {
 	cleanup_one_si(dev_get_drvdata(&dev->dev));
 	return 0;
 }
 
-static const struct parisc_device_id ipmi_parisc_tbl[] = {
+static const struct parisc_device_id ipmi_parisc_tbl[] __initconst = {
 	{ HPHW_MC, HVERSION_REV_ANY_ID, 0x004, 0xC0 },
 	{ 0, }
 };
 
-static struct parisc_driver ipmi_parisc_driver = {
+MODULE_DEVICE_TABLE(parisc, ipmi_parisc_tbl);
+
+static struct parisc_driver ipmi_parisc_driver __refdata = {
 	.name =		"ipmi",
 	.id_table =	ipmi_parisc_tbl,
 	.probe =	ipmi_parisc_probe,
-	.remove =	ipmi_parisc_remove,
+	.remove =	__exit_p(ipmi_parisc_remove),
 };
 #endif /* CONFIG_PARISC */
 
-- 
2.1.0

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 03/14] parisc/sticore: Fix section mismatches
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Signed-off-by: Helge Deller <deller@gmx.de>
---
 drivers/video/console/sticore.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index 7da1ad0..d1d3796 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -281,7 +281,7 @@ static void sti_rom_copy(unsigned long base, unsigned long count, void *dest)
 static char default_sti_path[21] __read_mostly;
 
 #ifndef MODULE
-static int sti_setup(char *str)
+static int __init sti_setup(char *str)
 {
 	if (str)
 		strlcpy (default_sti_path, str, sizeof (default_sti_path));
@@ -941,7 +941,7 @@ static void sticore_check_for_default_sti(struct sti_struct *sti, char *path)
  * in the additional address field addr[1] while on
  * older Systems the PDC stores it in page0->proc_sti 
  */
-static int sticore_pa_init(struct parisc_device *dev)
+static int __init sticore_pa_init(struct parisc_device *dev)
 {
 	char pa_path[21];
 	struct sti_struct *sti = NULL;
@@ -1009,7 +1009,7 @@ static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent)
 }
 
 
-static void sticore_pci_remove(struct pci_dev *pd)
+static void __exit sticore_pci_remove(struct pci_dev *pd)
 {
 	BUG();
 }
@@ -1029,7 +1029,7 @@ static struct pci_driver pci_sti_driver = {
 	.name		= "sti",
 	.id_table	= sti_pci_tbl,
 	.probe		= sticore_pci_init,
-	.remove		= sticore_pci_remove,
+	.remove		= __exit_p(sticore_pci_remove),
 };
 
 static struct parisc_device_id sti_pa_tbl[] = {
@@ -1037,8 +1037,9 @@ static struct parisc_device_id sti_pa_tbl[] = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
 	{ 0, }
 };
+MODULE_DEVICE_TABLE(parisc, sti_pa_tbl);
 
-static struct parisc_driver pa_sti_driver = {
+static struct parisc_driver pa_sti_driver __refdata = {
 	.name		= "sti",
 	.id_table	= sti_pa_tbl,
 	.probe		= sticore_pa_init,
-- 
2.1.0

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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 12/14] parisc/input/hilkbd: Fix section mismatches
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Signed-off-by: Helge Deller <deller@gmx.de>
---
 drivers/input/keyboard/hilkbd.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
index 198dc07..9ea3a10 100644
--- a/drivers/input/keyboard/hilkbd.c
+++ b/drivers/input/keyboard/hilkbd.c
@@ -299,7 +299,7 @@ static void hil_keyb_exit(void)
 }
 
 #if defined(CONFIG_PARISC)
-static int hil_probe_chip(struct parisc_device *dev)
+static int __init hil_probe_chip(struct parisc_device *dev)
 {
 	/* Only allow one HIL keyboard */
 	if (hil_dev.dev)
@@ -320,14 +320,14 @@ static int hil_probe_chip(struct parisc_device *dev)
 	return hil_keyb_init();
 }
 
-static int hil_remove_chip(struct parisc_device *dev)
+static int __exit hil_remove_chip(struct parisc_device *dev)
 {
 	hil_keyb_exit();
 
 	return 0;
 }
 
-static struct parisc_device_id hil_tbl[] = {
+static struct parisc_device_id hil_tbl[] __initconst = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00073 },
 	{ 0, }
 };
@@ -337,11 +337,11 @@ static struct parisc_device_id hil_tbl[] = {
 MODULE_DEVICE_TABLE(parisc, hil_tbl);
 #endif
 
-static struct parisc_driver hil_driver = {
+static struct parisc_driver hil_driver __refdata = {
 	.name		= "hil",
 	.id_table	= hil_tbl,
 	.probe		= hil_probe_chip,
-	.remove		= hil_remove_chip,
+	.remove		= __exit_p(hil_remove_chip),
 };
 
 static int __init hil_init(void)
-- 
2.1.0

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From - Thu Nov 08 21:40:15 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 11/14] parisc/net/lasi_82596: Fix section mismatches
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Signed-off-by: Helge Deller <deller@gmx.de>
---
 drivers/net/ethernet/i825xx/lasi_82596.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/i825xx/lasi_82596.c b/drivers/net/ethernet/i825xx/lasi_82596.c
index d787fdd..68a2af2 100644
--- a/drivers/net/ethernet/i825xx/lasi_82596.c
+++ b/drivers/net/ethernet/i825xx/lasi_82596.c
@@ -149,7 +149,7 @@ static void mpu_port(struct net_device *dev, int c, dma_addr_t x)
 
 #define LAN_PROM_ADDR	0xF0810000
 
-static int
+static int __init
 lan_init_chip(struct parisc_device *dev)
 {
 	struct	net_device *netdevice;
@@ -194,7 +194,7 @@ lan_init_chip(struct parisc_device *dev)
 	return retval;
 }
 
-static int lan_remove_chip(struct parisc_device *pdev)
+static int __exit lan_remove_chip(struct parisc_device *pdev)
 {
 	struct net_device *dev = parisc_get_drvdata(pdev);
 	struct i596_private *lp = netdev_priv(dev);
@@ -206,7 +206,7 @@ static int lan_remove_chip(struct parisc_device *pdev)
 	return 0;
 }
 
-static struct parisc_device_id lan_tbl[] = {
+static struct parisc_device_id lan_tbl[] __initconst = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008a },
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00072 },
 	{ 0, }
@@ -214,11 +214,11 @@ static struct parisc_device_id lan_tbl[] = {
 
 MODULE_DEVICE_TABLE(parisc, lan_tbl);
 
-static struct parisc_driver lan_driver = {
+static struct parisc_driver lan_driver __refdata = {
 	.name		= "lasi_82596",
 	.id_table	= lan_tbl,
 	.probe		= lan_init_chip,
-	.remove         = lan_remove_chip,
+	.remove         = __exit_p(lan_remove_chip),
 };
 
 static int lasi_82596_init(void)
-- 
2.1.0

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 06/14] parisc/scsi/zalon: Fix section mismatches
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Signed-off-by: Helge Deller <deller@gmx.de>
---
 drivers/scsi/zalon.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/zalon.c b/drivers/scsi/zalon.c
index b2cf1fa..a2fb7ad 100644
--- a/drivers/scsi/zalon.c
+++ b/drivers/scsi/zalon.c
@@ -160,14 +160,14 @@ zalon_probe(struct parisc_device *dev)
 	return error;
 }
 
-static struct parisc_device_id zalon_tbl[] = {
+static struct parisc_device_id zalon_tbl[] __initconst = {
 	{ HPHW_A_DMA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00089 }, 
 	{ 0, }
 };
 
 MODULE_DEVICE_TABLE(parisc, zalon_tbl);
 
-static int zalon_remove(struct parisc_device *dev)
+static int __exit zalon_remove(struct parisc_device *dev)
 {
 	struct Scsi_Host *host = dev_get_drvdata(&dev->dev);
 
@@ -178,11 +178,11 @@ static int zalon_remove(struct parisc_device *dev)
 	return 0;
 }
 
-static struct parisc_driver zalon_driver = {
+static struct parisc_driver zalon_driver __refdata = {
 	.name =		"zalon",
 	.id_table =	zalon_tbl,
 	.probe =	zalon_probe,
-	.remove =	zalon_remove,
+	.remove =	__exit_p(zalon_remove),
 };
 
 static int __init zalon7xx_init(void)
-- 
2.1.0

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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 07/14] parisc/scsi/lasi700: Fix section mismatches
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Signed-off-by: Helge Deller <deller@gmx.de>
---
 drivers/scsi/lasi700.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/lasi700.c b/drivers/scsi/lasi700.c
index 5c4ded9..576aae4 100644
--- a/drivers/scsi/lasi700.c
+++ b/drivers/scsi/lasi700.c
@@ -81,7 +81,7 @@ MODULE_LICENSE("GPL");
 #define LASI710_CLOCK	40
 #define LASI_SCSI_CORE_OFFSET 0x100
 
-static struct parisc_device_id lasi700_ids[] = {
+static struct parisc_device_id lasi700_ids[] __initconst = {
 	LASI700_ID_TABLE,
 	LASI710_ID_TABLE,
 	{ 0 }
@@ -164,11 +164,11 @@ lasi700_driver_remove(struct parisc_device *dev)
 	return 0;
 }
 
-static struct parisc_driver lasi700_driver = {
+static struct parisc_driver lasi700_driver __refdata = {
 	.name =		"lasi_scsi",
 	.id_table =	lasi700_ids,
 	.probe =	lasi700_probe,
-	.remove =	lasi700_driver_remove,
+	.remove =	__exit_p(lasi700_driver_remove),
 };
 
 static int __init
-- 
2.1.0

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Subject: [PATCH 00/14] parisc: Fix section mismatches
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Clean up section mismatches.
Helge

Helge Deller (14):
  parisc: Add support for self-extracting kernel
  parisc/harmony: Fix section mismatches
  parisc/sticore: Fix section mismatches
  parisc/mux: Fix section mismatches
  parisc/8250_gsc: Fix section mismatches
  parisc/scsi/zalon: Fix section mismatches
  parisc/scsi/lasi700: Fix section mismatches
  parisc/parport_gsc: Fix section mismatches
  parisc: Fix section mismatches in parisc core drivers
  parisc/serio: Fix section mismatches in gscps2 and hp_sdc drivers
  parisc/net/lasi_82596: Fix section mismatches
  parisc/input/hilkbd: Fix section mismatches
  parisc/ipmi_si_intf: Fix section mismatches on parisc platform
  parisc/core: Fix section mismatches

 arch/parisc/Kconfig                       |   6 +
 arch/parisc/Makefile                      |  16 +-
 arch/parisc/boot/.gitignore               |   2 +
 arch/parisc/boot/Makefile                 |  26 +++
 arch/parisc/boot/compressed/.gitignore    |   3 +
 arch/parisc/boot/compressed/Makefile      |  86 +++++++++
 arch/parisc/boot/compressed/head.S        |  85 +++++++++
 arch/parisc/boot/compressed/misc.c        | 301 ++++++++++++++++++++++++++++++
 arch/parisc/boot/compressed/vmlinux.lds.S | 101 ++++++++++
 arch/parisc/boot/compressed/vmlinux.scr   |  10 +
 arch/parisc/boot/install.sh               |  65 +++++++
 arch/parisc/include/asm/page.h            |   4 +
 arch/parisc/include/asm/pdc.h             |   2 +
 arch/parisc/kernel/firmware.c             |  15 +-
 arch/parisc/kernel/processor.c            |   6 +-
 arch/parisc/kernel/real2.S                |   4 +
 drivers/char/ipmi/ipmi_si_intf.c          |  12 +-
 drivers/input/keyboard/hilkbd.c           |  10 +-
 drivers/input/serio/gscps2.c              |  10 +-
 drivers/input/serio/hp_sdc.c              |   4 +-
 drivers/net/ethernet/i825xx/lasi_82596.c  |  10 +-
 drivers/parisc/asp.c                      |   4 +-
 drivers/parisc/ccio-dma.c                 |   4 +-
 drivers/parisc/ccio-rm-dma.c              |   6 +-
 drivers/parisc/dino.c                     |   4 +-
 drivers/parisc/eisa.c                     |   4 +-
 drivers/parisc/hppb.c                     |   6 +-
 drivers/parisc/lasi.c                     |   4 +-
 drivers/parisc/lba_pci.c                  |   4 +-
 drivers/parisc/sba_iommu.c                |   6 +-
 drivers/parisc/superio.c                  |   4 +-
 drivers/parisc/wax.c                      |   4 +-
 drivers/parport/parport_gsc.c             |  10 +-
 drivers/scsi/lasi700.c                    |   6 +-
 drivers/scsi/zalon.c                      |   8 +-
 drivers/tty/serial/8250/8250_gsc.c        |   8 +-
 drivers/tty/serial/mux.c                  |  14 +-
 drivers/video/console/sticore.c           |  11 +-
 sound/parisc/harmony.c                    |  10 +-
 39 files changed, 808 insertions(+), 87 deletions(-)
 create mode 100644 arch/parisc/boot/.gitignore
 create mode 100644 arch/parisc/boot/Makefile
 create mode 100644 arch/parisc/boot/compressed/.gitignore
 create mode 100644 arch/parisc/boot/compressed/Makefile
 create mode 100644 arch/parisc/boot/compressed/head.S
 create mode 100644 arch/parisc/boot/compressed/misc.c
 create mode 100644 arch/parisc/boot/compressed/vmlinux.lds.S
 create mode 100644 arch/parisc/boot/compressed/vmlinux.scr
 create mode 100644 arch/parisc/boot/install.sh

-- 
2.1.0

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From - Thu Nov 08 21:40:15 2018
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X-Mozilla-Keys:                                                                                 
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 10/14] parisc/serio: Fix section mismatches in gscps2 and hp_sdc drivers
Date: Mon, 21 Aug 2017 22:22:57 +0200
Lines: 81
Approved: news@gmane.org
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Signed-off-by: Helge Deller <deller@gmx.de>
---
 drivers/input/serio/gscps2.c | 10 +++++-----
 drivers/input/serio/hp_sdc.c |  4 ++--
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
index ecba666..0fa592c 100644
--- a/drivers/input/serio/gscps2.c
+++ b/drivers/input/serio/gscps2.c
@@ -325,7 +325,7 @@ static void gscps2_close(struct serio *port)
  * @return: success/error report
  */
 
-static int gscps2_probe(struct parisc_device *dev)
+static int __init gscps2_probe(struct parisc_device *dev)
 {
 	struct gscps2port *ps2port;
 	struct serio *serio;
@@ -412,7 +412,7 @@ static int gscps2_probe(struct parisc_device *dev)
  * @return: success/error report
  */
 
-static int gscps2_remove(struct parisc_device *dev)
+static int __exit gscps2_remove(struct parisc_device *dev)
 {
 	struct gscps2port *ps2port = dev_get_drvdata(&dev->dev);
 
@@ -430,7 +430,7 @@ static int gscps2_remove(struct parisc_device *dev)
 }
 
 
-static struct parisc_device_id gscps2_device_tbl[] = {
+static struct parisc_device_id gscps2_device_tbl[] __initconst = {
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00084 }, /* LASI PS/2 */
 #ifdef DINO_TESTED
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00096 }, /* DINO PS/2 */
@@ -439,11 +439,11 @@ static struct parisc_device_id gscps2_device_tbl[] = {
 };
 MODULE_DEVICE_TABLE(parisc, gscps2_device_tbl);
 
-static struct parisc_driver parisc_ps2_driver = {
+static struct parisc_driver parisc_ps2_driver __refdata = {
 	.name		= "gsc_ps2",
 	.id_table	= gscps2_device_tbl,
 	.probe		= gscps2_probe,
-	.remove		= gscps2_remove,
+	.remove		= __exit_p(gscps2_remove),
 };
 
 static int __init gscps2_init(void)
diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index 1bfdae4..cb9ae5b 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -805,7 +805,7 @@ static void hp_sdc_kicker(unsigned long data)
 
 #if defined(__hppa__)
 
-static const struct parisc_device_id hp_sdc_tbl[] = {
+static struct parisc_device_id hp_sdc_tbl[] __initconst = {
 	{
 		.hw_type =	HPHW_FIO,
 		.hversion_rev =	HVERSION_REV_ANY_ID,
@@ -820,7 +820,7 @@ MODULE_DEVICE_TABLE(parisc, hp_sdc_tbl);
 static int __init hp_sdc_init_hppa(struct parisc_device *d);
 static struct delayed_work moduleloader_work;
 
-static struct parisc_driver hp_sdc_driver = {
+static struct parisc_driver hp_sdc_driver __refdata = {
 	.name =		"hp_sdc",
 	.id_table =	hp_sdc_tbl,
 	.probe =	hp_sdc_init_hppa,
-- 
2.1.0

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH 14/14] parisc/core: Fix section mismatches
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Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/kernel/processor.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 0ab3277..1dc7f79 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -89,7 +89,7 @@ init_percpu_prof(unsigned long cpunum)
  * (return 1).  If so, initialize the chip and tell other partners in crime 
  * they have work to do.
  */
-static int processor_probe(struct parisc_device *dev)
+static int __init processor_probe(struct parisc_device *dev)
 {
 	unsigned long txn_addr;
 	unsigned long cpuid;
@@ -414,12 +414,12 @@ show_cpuinfo (struct seq_file *m, void *v)
 	return 0;
 }
 
-static const struct parisc_device_id processor_tbl[] = {
+static const struct parisc_device_id processor_tbl[] __initconst = {
 	{ HPHW_NPROC, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, SVERSION_ANY_ID },
 	{ 0, }
 };
 
-static struct parisc_driver cpu_driver = {
+static struct parisc_driver cpu_driver __refdata = {
 	.name		= "CPU",
 	.id_table	= processor_tbl,
 	.probe		= processor_probe
-- 
2.1.0

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From - Thu Nov 08 21:40:15 2018
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Subject: [PATCH 02/14] parisc/harmony: Fix section mismatches
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Signed-off-by: Helge Deller <deller@gmx.de>
---
 sound/parisc/harmony.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/sound/parisc/harmony.c b/sound/parisc/harmony.c
index 5911eb3..fc68c1c 100644
--- a/sound/parisc/harmony.c
+++ b/sound/parisc/harmony.c
@@ -66,7 +66,7 @@ module_param(id, charp, 0444);
 MODULE_PARM_DESC(id, "ID string for Harmony driver.");
 
 
-static struct parisc_device_id snd_harmony_devtable[] = {
+static struct parisc_device_id snd_harmony_devtable[] __initconst = {
 	/* bushmaster / flounder */
 	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007A }, 
 	/* 712 / 715 */
@@ -960,7 +960,7 @@ snd_harmony_create(struct snd_card *card,
 	return err;
 }
 
-static int
+static int __init
 snd_harmony_probe(struct parisc_device *padev)
 {
 	int err;
@@ -1000,18 +1000,18 @@ snd_harmony_probe(struct parisc_device *padev)
 	return err;
 }
 
-static int
+static int __exit
 snd_harmony_remove(struct parisc_device *padev)
 {
 	snd_card_free(parisc_get_drvdata(padev));
 	return 0;
 }
 
-static struct parisc_driver snd_harmony_driver = {
+static struct parisc_driver snd_harmony_driver __refdata = {
 	.name = "harmony",
 	.id_table = snd_harmony_devtable,
 	.probe = snd_harmony_probe,
-	.remove = snd_harmony_remove,
+	.remove = __exit_p(snd_harmony_remove),
 };
 
 static int __init 
-- 
2.1.0

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Hi Arvind,

On 19.08.2017 19:42, Arvind Yadav wrote:
> parisc_device_id are not supposed to change at runtime. All functions
> working with parisc_device_id provided by <asm/parisc-device.h> work with
> const parisc_device_id. So mark the non-const structs as const.

Basically your patches are correct, but those structs aren't used
after bootup any longer.
So, they are much better placed in the __initconst or __initdata
sections so that they get dropped before the kernel enters userspace.
Changing it to __initconst includes more changes to those files
than just changing one line.

So, I won't apply your patches.
Instead I've hacked up new versions in my tree which move those to 
__init* sections.

Anyway, thanks for your patches!

Helge 
 
> Arvind Yadav (8):
>   [PATCH 1/8] parisc: asp: constify parisc_device_id
>   [PATCH 2/8] parisc: ccio: constify parisc_device_id
>   [PATCH 3/8] parisc: dino: constify parisc_device_id
>   [PATCH 4/8] parisc: hppb: constify parisc_device_id
>   [PATCH 5/8] parisc: lasi: constify parisc_device_id
>   [PATCH 6/8] parisc: lba_pci: constify parisc_device_id
>   [PATCH 7/8] parisc: sba_iommu: constify parisc_device_id
>   [PATCH 8/8] parisc: wax: constify parisc_device_id
> 
>  drivers/parisc/asp.c         | 2 +-
>  drivers/parisc/ccio-rm-dma.c | 2 +-
>  drivers/parisc/dino.c        | 2 +-
>  drivers/parisc/hppb.c        | 2 +-
>  drivers/parisc/lasi.c        | 2 +-
>  drivers/parisc/lba_pci.c     | 2 +-
>  drivers/parisc/sba_iommu.c   | 2 +-
>  drivers/parisc/wax.c         | 2 +-
>  8 files changed, 8 insertions(+), 8 deletions(-)
> 



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On 19.08.2017 19:54, Arvind Yadav wrote:
> parisc_device_id are not supposed to change at runtime. All functions
> working with parisc_device_id provided by <asm/parisc-device.h> work with
> const parisc_device_id. So mark the non-const structs as const.
> 
> Arvind Yadav (4):
>   [PATCH 1/4] scsi: lasi700: constify parisc_device_id
>   [PATCH 2/4] scsi: zalon: constify parisc_device_id
>   [PATCH 3/4] tty: 8250: constify parisc_device_id
>   [PATCH 4/4] tty: mux: constify parisc_device_id

NAK.
Please don't apply.
I have other patches in my tree which will move those consts
into __init sections instead.

Thanks,
Helge

 
>  drivers/scsi/lasi700.c             | 2 +-
>  drivers/scsi/zalon.c               | 2 +-
>  drivers/tty/serial/8250/8250_gsc.c | 4 ++--
>  drivers/tty/serial/mux.c           | 4 ++--
>  4 files changed, 6 insertions(+), 6 deletions(-)
> 

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Hi Helge,

On Sun, Aug 20, 2017 at 10:32:33AM +0200, Helge Deller wrote:
>On 20.08.2017 08:20, Rolf Eike Beer wrote:
>> Am Sonntag, 20. August 2017, 07:51:13 schrieb kbuild test robot:
>>> tree:
>>> https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
>>> boot_devel head:   2de6ba7d548dff737bdc47173c8a7b6b20d94966
>>> commit: 2de6ba7d548dff737bdc47173c8a7b6b20d94966 [2/2] Initial support for
>>> compressed boot config: powerpc-akebono_defconfig (attached as .config)
>>> compiler: powerpc-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
>>> reproduce:
>>>         wget
>>> https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O
>>> ~/bin/make.cross chmod +x ~/bin/make.cross
>>>         git checkout 2de6ba7d548dff737bdc47173c8a7b6b20d94966
>>>         # save the attached .config to linux build tree
>>>         make.cross ARCH=powerpc
>>
>> You will not get help for powerpc problems on the parisc list.
>
>Eike, you are talking to a roboter :-)
>
>The kbuild test robot checks regularily various git trees, if the
>commits there will generate issues with other trees/architectures.
>It picked up my parisc boot-devel tree and reported build errors
>on the powerpc architecture.
>
>Please ignore this specific issue here:
>arch/powerpc/boot/inflate.c:358:18: error: 'uint32_t' undeclared
>I don't need this change and fixed it in my tree.
>
>Fengguang, can you maybe drop the parisc mailing list from
>the receiver list of issues with my trees? It just generate noise
>for the people on the mailing list.

Yes, sure. I'll remove the "mail_cc: linux-parisc@vger.kernel.org"
config option for your tree.

Thanks,
Fengguang
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Hi Andrew,

Today's linux-next merge of the akpm-current tree got a conflict in:

  arch/parisc/include/uapi/asm/mman.h

between commit:

  1c190151447d ("parisc: Add MADV_HWPOISON and MADV_SOFT_OFFLINE")

from the parisc-hd tree and commit:

  115d20ededaf ("mm,fork: introduce MADV_WIPEONFORK")

from the akpm-current tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc arch/parisc/include/uapi/asm/mman.h
index 9a9c2fe4be50,f6eec376e5fa..000000000000
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@@ -57,9 -60,9 +57,12 @@@
  					   overrides the coredump filter bits */
  #define MADV_DODUMP	70		/* Clear the MADV_NODUMP flag */
  
+ #define MADV_WIPEONFORK 71		/* Zero memory on fork, child only */
+ #define MADV_KEEPONFORK 72		/* Undo MADV_WIPEONFORK */
+ 
 +#define MADV_HWPOISON     100		/* poison a page for testing */
 +#define MADV_SOFT_OFFLINE 101		/* soft offline page for testing */
 +
  /* compatibility flags */
  #define MAP_FILE	0
  #define MAP_VARIABLE	0

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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] fs/select: Fix kernel panic due to memory corruption in
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Dave, can you test this patch?
Helge

------
[PATCH] Fix kernel panic due to memory corruption in compat_get_fd_set()

Dave faced this kernel crash in the select() compat syscall on the
parisc architecture:

 Kernel Fault: Code=26 (Data memory access rights trap) regs=00000002234b84e0 (Addr=0000000000000000)
 CPU: 1 PID: 21167 Comm: polyimport Not tainted 4.13.0-rc5+ #1
 task: 0000000223d74b50 task.stack: 00000002234b8000
 IAOQ[0]: memset+0x68/0xd8
 IAOQ[1]: memset+0x6c/0xd8
 RP(r2): compat_get_fd_set+0x5c/0x78
 Backtrace:
 [<00000000402f316c>] compat_get_fd_set+0x5c/0x78
 [<00000000402f3cac>] compat_core_sys_select+0x1cc/0x300
 [<00000000402f52dc>] compat_SyS_select+0x144/0x1a0
 [<0000000040155fe4>] syscall_exit+0x0/0x14
 Kernel panic - not syncing: Kernel Fault

It seems commit 464d62421cb8 ("select: switch compat_{get,put}_fd_set()
to compat_{get,put}_bitmap()") broke the calculation on how many bytes
need to be zeroed in case of fdset beeing NULL. This leads to memory
overwrites and crashes.

Fixes: 464d62421cb8 ("select: switch compat_{get,put}_fd_set() to compat_{get,put}_bitmap()"
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/fs/select.c b/fs/select.c
index 9d5f15e..c6362e3 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -1164,11 +1164,7 @@ int compat_get_fd_set(unsigned long nr, compat_ulong_t __user *ufdset,
 	if (ufdset) {
 		return compat_get_bitmap(fdset, ufdset, nr);
 	} else {
-		/* Tricky, must clear full unsigned long in the
-		 * kernel fdset at the end, ALIGN makes sure that
-		 * actually happens.
-		 */
-		memset(fdset, 0, ALIGN(nr, BITS_PER_LONG));
+		zero_fd_set(nr, fdset);
 		return 0;
 	}
 }



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Subject: Re: [PATCH] printk-formats.txt: Add examples for %pS and %pF
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On Tue 2017-08-15 21:58:33, Helge Deller wrote:
> On 15.08.2017 13:36, Petr Mladek wrote:
> > Here is the updated patch with my proposed changes.
> > Feel free to update it:
> 
> Much better!
> Thanks a lot.
> 
> Maybe we should mention usage of __func__ with '%s' (see other thread).
> 
> And _RET_IP_ is worth mentioning beside __builtin_return_address(0) too,
> because it's used quite often wrongly.

Yup, it seems that all this causes confusion. I did not find a good
way to explain this in the text. I think that we need the examples
after all.

Here is an updated version:


>From 818511a3be494b76b8f5ba1c2c6bb38095a9c640 Mon Sep 17 00:00:00 2001
From: Petr Mladek <pmladek@suse.com>
Date: Tue, 15 Aug 2017 11:34:19 +0200
Subject: [PATCH] printk-formats.txt: Better describe the difference between
 %pS and %pF

Sometimes people seems unclear when to use the %pS or %pF printk format.
For example, see commit 51d96dc2e2dc ("random: fix warning message on ia64
and parisc") which fixed such a wrong format string.

The documentation should be more clear about the difference.
Also examples might help to avoid some typical mistakes.

Signed-off-by: Helge Deller <deller@gmx.de>
[pmladek@suse.com: Restructure the entire section]
Signed-off-by: Petr Mladek <pmladek@suse.com>
---
 Documentation/printk-formats.txt | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 65ea5915178b..d503080e5174 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -58,20 +58,31 @@ Symbols/Function Pointers
 	%ps	versatile_init
 	%pB	prev_fn_of_versatile_init+0x88/0x88
 
-For printing symbols and function pointers. The ``S`` and ``s`` specifiers
-result in the symbol name with (``S``) or without (``s``) offsets. Where
-this is used on a kernel without KALLSYMS - the symbol address is
-printed instead.
+The ``F`` and ``f`` specifiers are for printing function pointers,
+for example, f->func, &gettimeofday. They have the same result as
+``S`` and ``s`` specifiers. But they do an extra conversion on
+ia64, ppc64 and parisc64 architectures where the function pointers
+are actually function descriptors.
+
+The ``S`` and ``s`` specifiers can be used for printing symbols
+from direct addresses, for example, __builtin_return_address(0),
+(void *)regs->ip. They result in the symbol name with (``S``) or
+without (``s``) offsets. If KALLSYMS are disabled then the symbol
+address is printed instead.
 
 The ``B`` specifier results in the symbol name with offsets and should be
 used when printing stack backtraces. The specifier takes into
 consideration the effect of compiler optimisations which may occur
 when tail-call``s are used and marked with the noreturn GCC attribute.
 
-On ia64, ppc64 and parisc64 architectures function pointers are
-actually function descriptors which must first be resolved. The ``F`` and
-``f`` specifiers perform this resolution and then provide the same
-functionality as the ``S`` and ``s`` specifiers.
+Examples::
+
+	printk("Going to call: %pF\n", gettimeofday);
+	printk("Going to call: %pF\n", p->func);
+	printk("%s: called from %pS\n", __func__, _RET_IP_);
+	printk("%s: called from %pS\n", __func__, __builtin_return_address(0));
+	printk("Faulted at %pS\n", (void *)regs->ip);
+	printk(" %s%pB\n", reliable ? "" : "? ", (void *)*stack);
 
 Kernel Pointers
 ===============
-- 
1.8.5.6



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From: Steven Rostedt <rostedt@goodmis.org>
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Subject: Re: [PATCH] printk-formats.txt: Add examples for %pS and %pF
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On Wed, 23 Aug 2017 16:48:24 +0200
Petr Mladek <pmladek@suse.com> wrote:

> +
> +	printk("Going to call: %pF\n", gettimeofday);
> +	printk("Going to call: %pF\n", p->func);
> +	printk("%s: called from %pS\n", __func__, _RET_IP_);
> +	printk("%s: called from %pS\n", __func__, __builtin_return_address(0));
> +	printk("Faulted at %pS\n", (void *)regs->ip);
> +	printk(" %s%pB\n", reliable ? "" : "? ", (void *)*stack);

Much better!

-- Steve
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Subject: Re: [PATCH] printk-formats.txt: Add examples for %pS and %pF
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On 23.08.2017 16:49, Steven Rostedt wrote:
> On Wed, 23 Aug 2017 16:48:24 +0200
> Petr Mladek <pmladek@suse.com> wrote:
> 
>> +
>> +	printk("Going to call: %pF\n", gettimeofday);
>> +	printk("Going to call: %pF\n", p->func);
>> +	printk("%s: called from %pS\n", __func__, _RET_IP_);
>> +	printk("%s: called from %pS\n", __func__, __builtin_return_address(0));
>> +	printk("Faulted at %pS\n", (void *)regs->ip);
>> +	printk(" %s%pB\n", reliable ? "" : "? ", (void *)*stack);
> 
> Much better!

Petr, that's really much better.

I've already pushed the part which restructured the text upstream.
I'll push this part of the patch (which adds the examples) for v4.14.

Thanks,
Helge  


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Subject: [PATCH v2] fs/select: Fix memory corruption in compat_get_fd_set()
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Commit 464d62421cb8 ("select: switch compat_{get,put}_fd_set() to
compat_{get,put}_bitmap()") changed the calculation on how many bytes
need to be zeroed when userspace handed over a NULL pointer for a
fdset array in the select syscall.

The calculation was changed in compat_get_fd_set() wrongly from
	memset(fdset, 0, ((nr + 1) & ~1)*sizeof(compat_ulong_t));
to
	memset(fdset, 0, ALIGN(nr, BITS_PER_LONG));

The ALIGN(nr, BITS_PER_LONG) calculates the number of bits which
need to be zeroed in the target fdset array (rounded up to the next
full bits for an unsigned long).
But the memset() call expects the number of bytes to be zeroed.

This leads to clearing more memory than wanted (on the stack area or
even at kmalloc()ed memory areas) and to random kernel crashes as we
have seen them on the parisc platform.

The correct change should have been
	memset(fdset, 0, (ALIGN(nr, BITS_PER_LONG) / BITS_PER_LONG) * BYTES_PER_LONG);
which is the same as can be archieved with a call to
	zero_fd_set(nr, fdset).

Fixes: 464d62421cb8 ("select: switch compat_{get,put}_fd_set() to compat_{get,put}_bitmap()"
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
---
Changes between v1 and v2 of the patch:
- Rephrased description of the problem

diff --git a/fs/select.c b/fs/select.c
index 9d5f15e..c6362e3 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -1164,11 +1164,7 @@ int compat_get_fd_set(unsigned long nr, compat_ulong_t __user *ufdset,
 	if (ufdset) {
 		return compat_get_bitmap(fdset, ufdset, nr);
 	} else {
-		/* Tricky, must clear full unsigned long in the
-		 * kernel fdset at the end, ALIGN makes sure that
-		 * actually happens.
-		 */
-		memset(fdset, 0, ALIGN(nr, BITS_PER_LONG));
+		zero_fd_set(nr, fdset);
 		return 0;
 	}
 }


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On (08/23/17 16:48), Petr Mladek wrote:
[..]
> Sometimes people seems unclear when to use the %pS or %pF printk format.
> For example, see commit 51d96dc2e2dc ("random: fix warning message on ia64
> and parisc") which fixed such a wrong format string.
> 
> The documentation should be more clear about the difference.
> Also examples might help to avoid some typical mistakes.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> [pmladek@suse.com: Restructure the entire section]
> Signed-off-by: Petr Mladek <pmladek@suse.com>

looks great.

FWIW,
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>

	-ss
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Subject: Re: [PATCH] printk-formats.txt: Add examples for %pS and %pF
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On Thu, 24 Aug 2017 09:41:03 +0900
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> wrote:

> On (08/23/17 16:48), Petr Mladek wrote:
> [..]
> > Sometimes people seems unclear when to use the %pS or %pF printk format.
> > For example, see commit 51d96dc2e2dc ("random: fix warning message on ia64
> > and parisc") which fixed such a wrong format string.
> > 
> > The documentation should be more clear about the difference.
> > Also examples might help to avoid some typical mistakes.
> > 
> > Signed-off-by: Helge Deller <deller@gmx.de>
> > [pmladek@suse.com: Restructure the entire section]
> > Signed-off-by: Petr Mladek <pmladek@suse.com>  
> 
> looks great.
> 
> FWIW,
> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>

Also,

Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

-- Steve
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 1/1] futex: remove duplicated code and fix UB
Date: Thu, 24 Aug 2017 09:31:05 +0200
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Cc: mingo@redhat.com, dvhart@infradead.org, peterz@infradead.org,
        linux-kernel@vger.kernel.org, Jiri Slaby <jslaby@suse.cz>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Richard Kuo <rkuo@codeaurora.org>,
        Tony Luck <tony.luck@intel.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2556324>

There is code duplicated over all architecture's headers for
futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
and comparison of the result.

Remove this duplication and leave up to the arches only the needed
assembly which is now in arch_futex_atomic_op_inuser.

This effectively distributes the Will Deacon's arm64 fix for undefined
behaviour reported by UBSAN to all architectures. The fix was done in
commit 5f16a046f8e1 (arm64: futex: Fix undefined behaviour with
FUTEX_OP_OPARG_SHIFT usage). Look there for an example dump.

And as suggested by Thomas, check for negative oparg too, because it was
also reported to cause undefined behaviour report.

Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
remove pointless access_ok() checks") as access_ok there returns true.
We introduce it back to the helper for the sake of simplicity (it gets
optimized away anyway).

[v2]
- check also for negative values
- wait for Will's fix to be in upstream

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Reviewed-by: Darren Hart (VMware) <dvhart@infradead.org>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stafford Horne <shorne@gmail.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390]
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Chris Metcalf <cmetcalf@mellanox.com> [for tile]
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: <x86@kernel.org>
Cc: <linux-alpha@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Cc: <linux-snps-arc@lists.infradead.org>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: <linux-hexagon@vger.kernel.org>
Cc: <linux-ia64@vger.kernel.org>
Cc: <linux-mips@linux-mips.org>
Cc: <openrisc@lists.librecores.org>
Cc: <linux-parisc@vger.kernel.org>
Cc: <linuxppc-dev@lists.ozlabs.org>
Cc: <linux-s390@vger.kernel.org>
Cc: <linux-sh@vger.kernel.org>
Cc: <sparclinux@vger.kernel.org>
Cc: <linux-xtensa@linux-xtensa.org>
Cc: <linux-arch@vger.kernel.org>
---
 arch/alpha/include/asm/futex.h      | 26 ++++---------------
 arch/arc/include/asm/futex.h        | 40 ++++-------------------------
 arch/arm/include/asm/futex.h        | 26 +++----------------
 arch/arm64/include/asm/futex.h      | 26 +++----------------
 arch/frv/include/asm/futex.h        |  3 ++-
 arch/frv/kernel/futex.c             | 27 +++-----------------
 arch/hexagon/include/asm/futex.h    | 38 +++-------------------------
 arch/ia64/include/asm/futex.h       | 25 +++----------------
 arch/microblaze/include/asm/futex.h | 38 +++-------------------------
 arch/mips/include/asm/futex.h       | 25 +++----------------
 arch/openrisc/include/asm/futex.h   | 39 +++--------------------------
 arch/parisc/include/asm/futex.h     | 26 +++----------------
 arch/powerpc/include/asm/futex.h    | 26 ++++---------------
 arch/s390/include/asm/futex.h       | 23 ++++-------------
 arch/sh/include/asm/futex.h         | 26 +++----------------
 arch/sparc/include/asm/futex_64.h   | 26 ++++---------------
 arch/tile/include/asm/futex.h       | 40 ++++-------------------------
 arch/x86/include/asm/futex.h        | 40 ++++-------------------------
 arch/xtensa/include/asm/futex.h     | 27 ++++----------------
 include/asm-generic/futex.h         | 50 +++++++------------------------------
 kernel/futex.c                      | 39 +++++++++++++++++++++++++++++
 21 files changed, 130 insertions(+), 506 deletions(-)

diff --git a/arch/alpha/include/asm/futex.h b/arch/alpha/include/asm/futex.h
index fb01dfb760c2..05a70edd57b6 100644
--- a/arch/alpha/include/asm/futex.h
+++ b/arch/alpha/include/asm/futex.h
@@ -25,18 +25,10 @@
 	:	"r" (uaddr), "r"(oparg)				\
 	:	"memory")
 
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -62,17 +54,9 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/arc/include/asm/futex.h b/arch/arc/include/asm/futex.h
index 11e1b1f3acda..eb887dd13e74 100644
--- a/arch/arc/include/asm/futex.h
+++ b/arch/arc/include/asm/futex.h
@@ -73,20 +73,11 @@
 
 #endif
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
-
 #ifndef CONFIG_ARC_HAS_LLSC
 	preempt_disable();	/* to guarantee atomic r-m-w of futex op */
 #endif
@@ -118,30 +109,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	preempt_enable();
 #endif
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
index 6795368ad023..cc414382dab4 100644
--- a/arch/arm/include/asm/futex.h
+++ b/arch/arm/include/asm/futex.h
@@ -128,20 +128,10 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 #endif /* !SMP */
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 #ifndef CONFIG_SMP
 	preempt_disable();
 #endif
@@ -172,17 +162,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 	preempt_enable();
 #endif
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h
index f32b42e8725d..5bb2fd4674e7 100644
--- a/arch/arm64/include/asm/futex.h
+++ b/arch/arm64/include/asm/futex.h
@@ -48,20 +48,10 @@ do {									\
 } while (0)
 
 static inline int
-futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (int)(encoded_op << 8) >> 20;
-	int cmparg = (int)(encoded_op << 20) >> 20;
 	int oldval = 0, ret, tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1U << (oparg & 0x1f);
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -91,17 +81,9 @@ futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/frv/include/asm/futex.h b/arch/frv/include/asm/futex.h
index 2e1da71e27a4..ab346f5f8820 100644
--- a/arch/frv/include/asm/futex.h
+++ b/arch/frv/include/asm/futex.h
@@ -7,7 +7,8 @@
 #include <asm/errno.h>
 #include <linux/uaccess.h>
 
-extern int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr);
+extern int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr);
 
 static inline int
 futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
diff --git a/arch/frv/kernel/futex.c b/arch/frv/kernel/futex.c
index d155ca9e5098..37f7b2bf7f73 100644
--- a/arch/frv/kernel/futex.c
+++ b/arch/frv/kernel/futex.c
@@ -186,20 +186,10 @@ static inline int atomic_futex_op_xchg_xor(int oparg, u32 __user *uaddr, int *_o
 /*
  * do the futex operations
  */
-int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -225,18 +215,9 @@ int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS; break;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
 
 	return ret;
 
-} /* end futex_atomic_op_inuser() */
+} /* end arch_futex_atomic_op_inuser() */
diff --git a/arch/hexagon/include/asm/futex.h b/arch/hexagon/include/asm/futex.h
index 7e597f8434da..c607b77c8215 100644
--- a/arch/hexagon/include/asm/futex.h
+++ b/arch/hexagon/include/asm/futex.h
@@ -31,18 +31,9 @@
 
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -72,30 +63,9 @@ futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h
index 76acbcd5c060..6d67dc1eaf2b 100644
--- a/arch/ia64/include/asm/futex.h
+++ b/arch/ia64/include/asm/futex.h
@@ -45,18 +45,9 @@ do {									\
 } while (0)
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -84,17 +75,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/microblaze/include/asm/futex.h b/arch/microblaze/include/asm/futex.h
index 01848f056f43..a9dad9e5e132 100644
--- a/arch/microblaze/include/asm/futex.h
+++ b/arch/microblaze/include/asm/futex.h
@@ -29,18 +29,9 @@
 })
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -66,30 +57,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/mips/include/asm/futex.h b/arch/mips/include/asm/futex.h
index 1de190bdfb9c..a9e61ea54ca9 100644
--- a/arch/mips/include/asm/futex.h
+++ b/arch/mips/include/asm/futex.h
@@ -83,18 +83,9 @@
 }
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -125,17 +116,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/openrisc/include/asm/futex.h b/arch/openrisc/include/asm/futex.h
index 778087341977..8fed278a24b8 100644
--- a/arch/openrisc/include/asm/futex.h
+++ b/arch/openrisc/include/asm/futex.h
@@ -30,20 +30,10 @@
 })
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -68,30 +58,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 0ba14300cd8e..c601aab2fb36 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -32,22 +32,12 @@ _futex_spin_unlock_irqrestore(u32 __user *uaddr, unsigned long int *flags)
 }
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
 	unsigned long int flags;
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval, ret;
 	u32 tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(*uaddr)))
-		return -EFAULT;
-
 	_futex_spin_lock_irqsave(uaddr, &flags);
 	pagefault_disable();
 
@@ -85,17 +75,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 	pagefault_enable();
 	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
-	if (ret == 0) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/powerpc/include/asm/futex.h b/arch/powerpc/include/asm/futex.h
index eaada6c92344..719ed9b61ea7 100644
--- a/arch/powerpc/include/asm/futex.h
+++ b/arch/powerpc/include/asm/futex.h
@@ -29,18 +29,10 @@
 	: "b" (uaddr), "i" (-EFAULT), "r" (oparg) \
 	: "cr0", "memory")
 
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -66,17 +58,9 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h
index a4811aa0304d..8f8eec9e1198 100644
--- a/arch/s390/include/asm/futex.h
+++ b/arch/s390/include/asm/futex.h
@@ -21,17 +21,12 @@
 		: "0" (-EFAULT), "d" (oparg), "a" (uaddr),		\
 		  "m" (*uaddr) : "cc");
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, newval, ret;
 
 	load_kernel_asce();
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
 
 	pagefault_disable();
 	switch (op) {
@@ -60,17 +55,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	}
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/sh/include/asm/futex.h b/arch/sh/include/asm/futex.h
index 8e26e0ddc872..38a889edc3a6 100644
--- a/arch/sh/include/asm/futex.h
+++ b/arch/sh/include/asm/futex.h
@@ -27,21 +27,12 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	return atomic_futex_op_cmpxchg_inatomic(uval, uaddr, oldval, newval);
 }
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	u32 oparg = (encoded_op << 8) >> 20;
-	u32 cmparg = (encoded_op << 20) >> 20;
 	u32 oldval, newval, prev;
 	int ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	do {
@@ -77,17 +68,8 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = ((int)oldval < (int)cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = ((int)oldval >= (int)cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = ((int)oldval <= (int)cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = ((int)oldval > (int)cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
 
 	return ret;
 }
diff --git a/arch/sparc/include/asm/futex_64.h b/arch/sparc/include/asm/futex_64.h
index 4e899b0dabf7..1cfd89d92208 100644
--- a/arch/sparc/include/asm/futex_64.h
+++ b/arch/sparc/include/asm/futex_64.h
@@ -29,22 +29,14 @@
 	: "r" (uaddr), "r" (oparg), "i" (-EFAULT)	\
 	: "memory")
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tem;
 
-	if (unlikely(!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))))
-		return -EFAULT;
 	if (unlikely((((unsigned long) uaddr) & 0x3UL)))
 		return -EINVAL;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -69,17 +61,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/tile/include/asm/futex.h b/arch/tile/include/asm/futex.h
index e64a1b75fc38..83c1e639b411 100644
--- a/arch/tile/include/asm/futex.h
+++ b/arch/tile/include/asm/futex.h
@@ -106,12 +106,9 @@
 	lock = __atomic_hashed_lock((int __force *)uaddr)
 #endif
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int uninitialized_var(val), ret;
 
 	__futex_prolog();
@@ -119,12 +116,6 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	/* The 32-bit futex code makes this assumption, so validate it here. */
 	BUILD_BUG_ON(sizeof(atomic_t) != sizeof(int));
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 	switch (op) {
 	case FUTEX_OP_SET:
@@ -148,30 +139,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	}
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (val == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (val != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (val < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (val >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (val <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (val > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = val;
+
 	return ret;
 }
 
diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
index b4c1f5453436..f4dc9b63bdda 100644
--- a/arch/x86/include/asm/futex.h
+++ b/arch/x86/include/asm/futex.h
@@ -41,20 +41,11 @@
 		       "+m" (*uaddr), "=&r" (tem)		\
 		     : "r" (oparg), "i" (-EFAULT), "1" (0))
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tem;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -80,30 +71,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/arch/xtensa/include/asm/futex.h b/arch/xtensa/include/asm/futex.h
index b39531babec0..eaaf1ebcc7a4 100644
--- a/arch/xtensa/include/asm/futex.h
+++ b/arch/xtensa/include/asm/futex.h
@@ -44,18 +44,10 @@
 	: "r" (uaddr), "I" (-EFAULT), "r" (oparg)	\
 	: "memory")
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 #if !XCHAL_HAVE_S32C1I
 	return -ENOSYS;
@@ -89,19 +81,10 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (ret)
-		return ret;
+	if (!ret)
+		*oval = oldval;
 
-	switch (cmp) {
-	case FUTEX_OP_CMP_EQ: return (oldval == cmparg);
-	case FUTEX_OP_CMP_NE: return (oldval != cmparg);
-	case FUTEX_OP_CMP_LT: return (oldval < cmparg);
-	case FUTEX_OP_CMP_GE: return (oldval >= cmparg);
-	case FUTEX_OP_CMP_LE: return (oldval <= cmparg);
-	case FUTEX_OP_CMP_GT: return (oldval > cmparg);
-	}
-
-	return -ENOSYS;
+	return ret;
 }
 
 static inline int
diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h
index bf2d34c9d804..f0d8b1c51343 100644
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -13,7 +13,7 @@
  */
 
 /**
- * futex_atomic_op_inuser() - Atomic arithmetic operation with constant
+ * arch_futex_atomic_op_inuser() - Atomic arithmetic operation with constant
  *			  argument and comparison of the previous
  *			  futex value with another constant.
  *
@@ -25,18 +25,11 @@
  * <0 - On error
  */
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval, ret;
 	u32 tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
 	preempt_disable();
 	pagefault_disable();
 
@@ -74,17 +67,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
 	pagefault_enable();
 	preempt_enable();
 
-	if (ret == 0) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (ret == 0)
+		*oval = oldval;
+
 	return ret;
 }
 
@@ -126,18 +111,9 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 
 #else
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -153,17 +129,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
diff --git a/kernel/futex.c b/kernel/futex.c
index 0939255fc750..3d38eaf05492 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1551,6 +1551,45 @@ futex_wake(u32 __user *uaddr, unsigned int flags, int nr_wake, u32 bitset)
 	return ret;
 }
 
+static int futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
+{
+	unsigned int op =	  (encoded_op & 0x70000000) >> 28;
+	unsigned int cmp =	  (encoded_op & 0x0f000000) >> 24;
+	int oparg = sign_extend32((encoded_op & 0x00fff000) >> 12, 12);
+	int cmparg = sign_extend32(encoded_op & 0x00000fff, 12);
+	int oldval, ret;
+
+	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) {
+		if (oparg < 0 || oparg > 31)
+			return -EINVAL;
+		oparg = 1 << oparg;
+	}
+
+	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+		return -EFAULT;
+
+	ret = arch_futex_atomic_op_inuser(op, oparg, &oldval, uaddr);
+	if (ret)
+		return ret;
+
+	switch (cmp) {
+	case FUTEX_OP_CMP_EQ:
+		return oldval == cmparg;
+	case FUTEX_OP_CMP_NE:
+		return oldval != cmparg;
+	case FUTEX_OP_CMP_LT:
+		return oldval < cmparg;
+	case FUTEX_OP_CMP_GE:
+		return oldval >= cmparg;
+	case FUTEX_OP_CMP_LE:
+		return oldval <= cmparg;
+	case FUTEX_OP_CMP_GT:
+		return oldval > cmparg;
+	default:
+		return -ENOSYS;
+	}
+}
+
 /*
  * Wake up all waiters hashed on the physical page that is mapped
  * to this virtual address:
-- 
2.14.1



From - Thu Nov 08 21:40:16 2018
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X-Mozilla-Keys:                                                                                 
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From: Petr Mladek <pmladek@suse.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH] printk-formats.txt: Add examples for %pS and %pF
Date: Thu, 24 Aug 2017 11:21:13 +0200
Lines: 28
Approved: news@gmane.org
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On Wed 2017-08-23 21:36:21, Helge Deller wrote:
> On 23.08.2017 16:49, Steven Rostedt wrote:
> > On Wed, 23 Aug 2017 16:48:24 +0200
> > Petr Mladek <pmladek@suse.com> wrote:
> > 
> >> +
> >> +	printk("Going to call: %pF\n", gettimeofday);
> >> +	printk("Going to call: %pF\n", p->func);
> >> +	printk("%s: called from %pS\n", __func__, _RET_IP_);
> >> +	printk("%s: called from %pS\n", __func__, __builtin_return_address(0));
> >> +	printk("Faulted at %pS\n", (void *)regs->ip);
> >> +	printk(" %s%pB\n", reliable ? "" : "? ", (void *)*stack);
> > 
> > Much better!
> 
> Petr, that's really much better.
> 
> I've already pushed the part which restructured the text upstream.

Ah, great, I have missed this.

> I'll push this part of the patch (which adds the examples) for v4.14.

Sounds good.

Thanks,
Petr


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Subject: Re: [PATCH v2 1/1] futex: remove duplicated code and fix UB
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Hi Jiri,

On Thu, Aug 24, 2017 at 09:31:05AM +0200, Jiri Slaby wrote:
> There is code duplicated over all architecture's headers for
> futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
> and comparison of the result.
> 
> Remove this duplication and leave up to the arches only the needed
> assembly which is now in arch_futex_atomic_op_inuser.
> 
> This effectively distributes the Will Deacon's arm64 fix for undefined
> behaviour reported by UBSAN to all architectures. The fix was done in
> commit 5f16a046f8e1 (arm64: futex: Fix undefined behaviour with
> FUTEX_OP_OPARG_SHIFT usage). Look there for an example dump.
> 
> And as suggested by Thomas, check for negative oparg too, because it was
> also reported to cause undefined behaviour report.
> 
> Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
> remove pointless access_ok() checks") as access_ok there returns true.
> We introduce it back to the helper for the sake of simplicity (it gets
> optimized away anyway).

For arm64 and the core code:

Reviewed-by: Will Deacon <will.deacon@arm.com>

Although one minor thing on the core part:

> diff --git a/kernel/futex.c b/kernel/futex.c
> index 0939255fc750..3d38eaf05492 100644
> --- a/kernel/futex.c
> +++ b/kernel/futex.c
> @@ -1551,6 +1551,45 @@ futex_wake(u32 __user *uaddr, unsigned int flags, int nr_wake, u32 bitset)
>  	return ret;
>  }
>  
> +static int futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
> +{
> +	unsigned int op =	  (encoded_op & 0x70000000) >> 28;
> +	unsigned int cmp =	  (encoded_op & 0x0f000000) >> 24;
> +	int oparg = sign_extend32((encoded_op & 0x00fff000) >> 12, 12);
> +	int cmparg = sign_extend32(encoded_op & 0x00000fff, 12);
> +	int oldval, ret;
> +
> +	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) {
> +		if (oparg < 0 || oparg > 31)
> +			return -EINVAL;
> +		oparg = 1 << oparg;
> +	}
> +
> +	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
> +		return -EFAULT;
> +
> +	ret = arch_futex_atomic_op_inuser(op, oparg, &oldval, uaddr);
> +	if (ret)
> +		return ret;

We could move the pagefault_{disable,enable} calls here, and then remove
them from the futex_atomic_op_inuser callsites elsewhere in futex.c

Will
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Subject: Re: [PATCH v6 3/5] mm: introduce mmap3 for safely defining new mmap
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Date: Fri, 25 Aug 2017 09:02:36 -0700
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Cc: Christoph Hellwig <hch@infradead.org>,
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	Arnd Bergmann <arnd@arndb.de>,
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To: "Kirill A. Shutemov" <kirill@shutemov.name>
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On Fri, Aug 25, 2017 at 06:58:03PM +0300, Kirill A. Shutemov wrote:
> Not all archs are ready for this:
> 
> arch/parisc/include/uapi/asm/mman.h:#define MAP_TYPE    0x03            /* Mask for type of mapping */
> arch/parisc/include/uapi/asm/mman.h:#define MAP_FIXED   0x04            /* Interpret addr exactly */

I'd be happy to say that we should not care about parisc for
persistent memory.  We'll just have to find a way to exclude
parisc without making life too ugly.

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From - Thu Nov 08 21:40:16 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.hardware.nvdimm,gmane.linux.kernel.api,gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.file-systems
Subject: Re: [PATCH v6 3/5] mm: introduce mmap3 for safely defining new mmap
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On Fri, Aug 25, 2017 at 09:02:36AM -0700, Christoph Hellwig wrote:
> On Fri, Aug 25, 2017 at 06:58:03PM +0300, Kirill A. Shutemov wrote:
> > Not all archs are ready for this:
> > 
> > arch/parisc/include/uapi/asm/mman.h:#define MAP_TYPE    0x03            /* Mask for type of mapping */
> > arch/parisc/include/uapi/asm/mman.h:#define MAP_FIXED   0x04            /* Interpret addr exactly */
> 
> I'd be happy to say that we should not care about parisc for
> persistent memory.  We'll just have to find a way to exclude
> parisc without making life too ugly.

I don't think creapling mmap() interface for one arch is the right way to
go. I think the interface should be universal.

I may imagine MAP_DIRECT can be useful not only for persistent memory.
For tmpfs instead of mlock()?

-- 
 Kirill A. Shutemov
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Cc: Jan Kara <jack-AlSwsSmVLrQ@public.gmane.org>, linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
 Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
 "linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org" <linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org>,
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To: "Kirill A. Shutemov" <kirill-oKw7cIdHH8eLwutG50LtGA@public.gmane.org>,
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On 25.08.2017 18:16, Kirill A. Shutemov wrote:
> On Fri, Aug 25, 2017 at 09:02:36AM -0700, Christoph Hellwig wrote:
>> On Fri, Aug 25, 2017 at 06:58:03PM +0300, Kirill A. Shutemov wrote:
>>> Not all archs are ready for this:
>>>
>>> arch/parisc/include/uapi/asm/mman.h:#define MAP_TYPE    0x03            /* Mask for type of mapping */
>>> arch/parisc/include/uapi/asm/mman.h:#define MAP_FIXED   0x04            /* Interpret addr exactly */
>>
>> I'd be happy to say that we should not care about parisc for
>> persistent memory.  We'll just have to find a way to exclude
>> parisc without making life too ugly.
> 
> I don't think creapling mmap() interface for one arch is the right way to
> go. I think the interface should be universal.
> 
> I may imagine MAP_DIRECT can be useful not only for persistent memory.
> For tmpfs instead of mlock()?

On parisc we have
#define MAP_SHARED      0x01            /* Share changes */
#define MAP_PRIVATE     0x02            /* Changes are private */
#define MAP_TYPE        0x03            /* Mask for type of mapping */
#define MAP_FIXED       0x04            /* Interpret addr exactly */
#define MAP_ANONYMOUS   0x10            /* don't use a file */

So, if you need a MAP_DIRECT, wouldn't e.g.
#define MAP_DIRECT      0x08
be possible (for parisc, and others 0x04).
And if MAP_TYPE needs to include this flag on parisc:
#define MAP_TYPE        (0x03 | 0x08)  /* Mask for type of mapping */

Helge

From - Thu Nov 08 21:40:16 2018
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From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.hardware.nvdimm,gmane.linux.kernel.api,gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.file-systems
Subject: Re: [PATCH v6 3/5] mm: introduce mmap3 for safely defining new mmap
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Cc: "Kirill A. Shutemov" <kirill@shutemov.name>,
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To: Helge Deller <deller@gmx.de>
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On Fri, Aug 25, 2017 at 04:19:19PM +0000, Helge Deller wrote:
> On 25.08.2017 18:16, Kirill A. Shutemov wrote:
> > On Fri, Aug 25, 2017 at 09:02:36AM -0700, Christoph Hellwig wrote:
> >> On Fri, Aug 25, 2017 at 06:58:03PM +0300, Kirill A. Shutemov wrote:
> >>> Not all archs are ready for this:
> >>>
> >>> arch/parisc/include/uapi/asm/mman.h:#define MAP_TYPE    0x03            /* Mask for type of mapping */
> >>> arch/parisc/include/uapi/asm/mman.h:#define MAP_FIXED   0x04            /* Interpret addr exactly */
> >>
> >> I'd be happy to say that we should not care about parisc for
> >> persistent memory.  We'll just have to find a way to exclude
> >> parisc without making life too ugly.
> > 
> > I don't think creapling mmap() interface for one arch is the right way to
> > go. I think the interface should be universal.
> > 
> > I may imagine MAP_DIRECT can be useful not only for persistent memory.
> > For tmpfs instead of mlock()?
> 
> On parisc we have
> #define MAP_SHARED      0x01            /* Share changes */
> #define MAP_PRIVATE     0x02            /* Changes are private */
> #define MAP_TYPE        0x03            /* Mask for type of mapping */
> #define MAP_FIXED       0x04            /* Interpret addr exactly */
> #define MAP_ANONYMOUS   0x10            /* don't use a file */
> 
> So, if you need a MAP_DIRECT, wouldn't e.g.
> #define MAP_DIRECT      0x08
> be possible (for parisc, and others 0x04).
> And if MAP_TYPE needs to include this flag on parisc:
> #define MAP_TYPE        (0x03 | 0x08)  /* Mask for type of mapping */

I guess it's better to re-define MAP_TYPE as 0x3 everywhere and make
MAP_DIRECT a normal flag. It's not new type of mapping anyway.

-- 
 Kirill A. Shutemov
--
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From - Thu Nov 08 21:40:16 2018
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Subject: Re: [PATCH v6 3/5] mm: introduce mmap3 for safely defining new mmap flags
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Cc: "Kirill A. Shutemov" <kirill@shutemov.name>, Christoph Hellwig <hch@infradead.org>, 
	Andrew Morton <akpm@linux-foundation.org>, Jan Kara <jack@suse.cz>, Arnd Bergmann <arnd@arndb.de>, 
	"linux-nvdimm@lists.01.org" <linux-nvdimm@lists.01.org>, Linux API <linux-api@vger.kernel.org>, 
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	Linux MM <linux-mm@kvack.org>, Andy Lutomirski <luto@kernel.org>, 
	linux-fsdevel <linux-fsdevel@vger.kernel.org>, 
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To: Helge Deller <deller@gmx.de>
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On Fri, Aug 25, 2017 at 9:19 AM, Helge Deller <deller@gmx.de> wrote:
> On 25.08.2017 18:16, Kirill A. Shutemov wrote:
>> On Fri, Aug 25, 2017 at 09:02:36AM -0700, Christoph Hellwig wrote:
>>> On Fri, Aug 25, 2017 at 06:58:03PM +0300, Kirill A. Shutemov wrote:
>>>> Not all archs are ready for this:
>>>>
>>>> arch/parisc/include/uapi/asm/mman.h:#define MAP_TYPE    0x03            /* Mask for type of mapping */
>>>> arch/parisc/include/uapi/asm/mman.h:#define MAP_FIXED   0x04            /* Interpret addr exactly */
>>>
>>> I'd be happy to say that we should not care about parisc for
>>> persistent memory.  We'll just have to find a way to exclude
>>> parisc without making life too ugly.
>>
>> I don't think creapling mmap() interface for one arch is the right way to
>> go. I think the interface should be universal.
>>
>> I may imagine MAP_DIRECT can be useful not only for persistent memory.
>> For tmpfs instead of mlock()?
>
> On parisc we have
> #define MAP_SHARED      0x01            /* Share changes */
> #define MAP_PRIVATE     0x02            /* Changes are private */
> #define MAP_TYPE        0x03            /* Mask for type of mapping */
> #define MAP_FIXED       0x04            /* Interpret addr exactly */
> #define MAP_ANONYMOUS   0x10            /* don't use a file */
>
> So, if you need a MAP_DIRECT, wouldn't e.g.
> #define MAP_DIRECT      0x08
> be possible (for parisc, and others 0x04).
> And if MAP_TYPE needs to include this flag on parisc:
> #define MAP_TYPE        (0x03 | 0x08)  /* Mask for type of mapping */

The problem here is that to support new the mmap flags the arch needs
to find a flag that is guaranteed to fail on older kernels. Defining
MAP_DIRECT to 0x8 on parisc doesn't work because it will simply be
ignored on older parisc kernels.

However, it's already the case that several archs have their own
sys_mmap entry points. Those archs that can't follow the common scheme
(only parsic it seems) will need to add a new mmap syscall. I think
that's a reasonable tradeoff to allow every other architecture to add
this support with their existing mmap syscall paths.

That means MAP_DIRECT should be defined to MAP_TYPE on parisc until it
later defines an opt-in mechanism to a new syscall that honors
MAP_DIRECT as a valid flag.

--
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From - Thu Nov 08 21:40:17 2018
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From: Thomas Gleixner <tglx@linutronix.de>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 1/1] futex: remove duplicated code and fix UB
Date: Fri, 25 Aug 2017 22:43:41 +0200 (CEST)
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Message-ID: <alpine.DEB.2.20.1708252243020.2124@nanos>
References: <20170824073105.3901-1-jslaby@suse.cz>
 <20170824094756.GA6346@arm.com>
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, peterz@infradead.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Max Filippov <jcmvbkbc@gmail.com>, Paul Mackerras <paulus@samba.org>,
 "H. Peter Anvin" <hpa@zytor.com>, sparclinux@vger.kernel.org,
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To: Will Deacon <will.deacon@arm.com>
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On Thu, 24 Aug 2017, Will Deacon wrote:
> On Thu, Aug 24, 2017 at 09:31:05AM +0200, Jiri Slaby wrote:
> > +static int futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
> > +{
> > +	unsigned int op =	  (encoded_op & 0x70000000) >> 28;
> > +	unsigned int cmp =	  (encoded_op & 0x0f000000) >> 24;
> > +	int oparg = sign_extend32((encoded_op & 0x00fff000) >> 12, 12);
> > +	int cmparg = sign_extend32(encoded_op & 0x00000fff, 12);
> > +	int oldval, ret;
> > +
> > +	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) {
> > +		if (oparg < 0 || oparg > 31)
> > +			return -EINVAL;
> > +		oparg = 1 << oparg;
> > +	}
> > +
> > +	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
> > +		return -EFAULT;
> > +
> > +	ret = arch_futex_atomic_op_inuser(op, oparg, &oldval, uaddr);
> > +	if (ret)
> > +		return ret;
> 
> We could move the pagefault_{disable,enable} calls here, and then remove
> them from the futex_atomic_op_inuser callsites elsewhere in futex.c

Correct, but we can do that after getting this in.

Thanks,

	tglx

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.ports.mips,gmane.linux.kernel
Subject: remove dma_alloc_noncoherent V2
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For many years we've had the dma_alloc_attrs API that is more flexible
than dma_alloc_noncoherent.  This series moves the remaining users over
to the attrs API.

After half of the series went in for the last merge window I'd really
like to merge the remainer.  Any chance to get some ACKs/reviews for
the net drivers?
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From - Thu Nov 08 21:40:17 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.network,gmane.linux.ports.mips,gmane.linux.kernel
Subject: [PATCH 2/4] au1000_eth: switch to dma_alloc_attrs
Date: Sat, 26 Aug 2017 09:21:23 +0200
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Use dma_alloc_attrs directly instead of the dma_alloc_noncoherent wrapper.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/net/ethernet/amd/au1000_eth.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/amd/au1000_eth.c b/drivers/net/ethernet/amd/au1000_eth.c
index a3c90fe5de00..73ca8879ada7 100644
--- a/drivers/net/ethernet/amd/au1000_eth.c
+++ b/drivers/net/ethernet/amd/au1000_eth.c
@@ -1180,9 +1180,10 @@ static int au1000_probe(struct platform_device *pdev)
 	/* Allocate the data buffers
 	 * Snooping works fine with eth on all au1xxx
 	 */
-	aup->vaddr = (u32)dma_alloc_noncoherent(NULL, MAX_BUF_SIZE *
-						(NUM_TX_BUFFS + NUM_RX_BUFFS),
-						&aup->dma_addr,	0);
+	aup->vaddr = (u32)dma_alloc_attrs(NULL, MAX_BUF_SIZE *
+					  (NUM_TX_BUFFS + NUM_RX_BUFFS),
+					  &aup->dma_addr, 0,
+					  DMA_ATTR_NON_CONSISTENT);
 	if (!aup->vaddr) {
 		dev_err(&pdev->dev, "failed to allocate data buffers\n");
 		err = -ENOMEM;
@@ -1361,8 +1362,9 @@ static int au1000_probe(struct platform_device *pdev)
 err_remap2:
 	iounmap(aup->mac);
 err_remap1:
-	dma_free_noncoherent(NULL, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS),
-			     (void *)aup->vaddr, aup->dma_addr);
+	dma_free_attrs(NULL, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS),
+			(void *)aup->vaddr, aup->dma_addr,
+			DMA_ATTR_NON_CONSISTENT);
 err_vaddr:
 	free_netdev(dev);
 err_alloc:
@@ -1394,9 +1396,9 @@ static int au1000_remove(struct platform_device *pdev)
 		if (aup->tx_db_inuse[i])
 			au1000_ReleaseDB(aup, aup->tx_db_inuse[i]);
 
-	dma_free_noncoherent(NULL, MAX_BUF_SIZE *
-			(NUM_TX_BUFFS + NUM_RX_BUFFS),
-			(void *)aup->vaddr, aup->dma_addr);
+	dma_free_attrs(NULL, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS),
+			(void *)aup->vaddr, aup->dma_addr,
+			DMA_ATTR_NON_CONSISTENT);
 
 	iounmap(aup->macdma);
 	iounmap(aup->mac);
-- 
2.11.0

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From - Thu Nov 08 21:40:17 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.network,gmane.linux.ports.mips,gmane.linux.ports.parisc
Subject: [PATCH 1/4] sgiseeq: switch to dma_alloc_attrs
Date: Sat, 26 Aug 2017 09:21:22 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2558049>

Use dma_alloc_attrs directly instead of the dma_alloc_noncoherent wrapper.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/net/ethernet/seeq/sgiseeq.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/seeq/sgiseeq.c b/drivers/net/ethernet/seeq/sgiseeq.c
index 70347720fdf9..573691bc3b71 100644
--- a/drivers/net/ethernet/seeq/sgiseeq.c
+++ b/drivers/net/ethernet/seeq/sgiseeq.c
@@ -737,8 +737,8 @@ static int sgiseeq_probe(struct platform_device *pdev)
 	sp = netdev_priv(dev);
 
 	/* Make private data page aligned */
-	sr = dma_alloc_noncoherent(&pdev->dev, sizeof(*sp->srings),
-				&sp->srings_dma, GFP_KERNEL);
+	sr = dma_alloc_attrs(&pdev->dev, sizeof(*sp->srings), &sp->srings_dma,
+			     GFP_KERNEL, DMA_ATTR_NON_CONSISTENT);
 	if (!sr) {
 		printk(KERN_ERR "Sgiseeq: Page alloc failed, aborting.\n");
 		err = -ENOMEM;
@@ -813,8 +813,8 @@ static int sgiseeq_remove(struct platform_device *pdev)
 	struct sgiseeq_private *sp = netdev_priv(dev);
 
 	unregister_netdev(dev);
-	dma_free_noncoherent(&pdev->dev, sizeof(*sp->srings), sp->srings,
-			     sp->srings_dma);
+	dma_free_attrs(&pdev->dev, sizeof(*sp->srings), sp->srings,
+		       sp->srings_dma, DMA_ATTR_NON_CONSISTENT);
 	free_netdev(dev);
 
 	return 0;
-- 
2.11.0



From - Thu Nov 08 21:40:17 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.network,gmane.linux.ports.mips,gmane.linux.ports.parisc
Subject: [PATCH 3/4] i825xx: switch to switch to dma_alloc_attrs
Date: Sat, 26 Aug 2017 09:21:24 +0200
Lines: 89
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        linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org
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This way we can always pass DMA_ATTR_NON_CONSISTENT, the SNI mips version
will simply ignore the flag.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/net/ethernet/i825xx/lasi_82596.c | 6 ++----
 drivers/net/ethernet/i825xx/lib82596.c   | 9 +++++----
 drivers/net/ethernet/i825xx/sni_82596.c  | 6 ++----
 3 files changed, 9 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/i825xx/lasi_82596.c b/drivers/net/ethernet/i825xx/lasi_82596.c
index d787fdd5db7b..d5b5021aa759 100644
--- a/drivers/net/ethernet/i825xx/lasi_82596.c
+++ b/drivers/net/ethernet/i825xx/lasi_82596.c
@@ -96,8 +96,6 @@
 
 #define OPT_SWAP_PORT	0x0001	/* Need to wordswp on the MPU port */
 
-#define DMA_ALLOC                        dma_alloc_noncoherent
-#define DMA_FREE                         dma_free_noncoherent
 #define DMA_WBACK(ndev, addr, len) \
 	do { dma_cache_sync((ndev)->dev.parent, (void *)addr, len, DMA_TO_DEVICE); } while (0)
 
@@ -200,8 +198,8 @@ static int lan_remove_chip(struct parisc_device *pdev)
 	struct i596_private *lp = netdev_priv(dev);
 
 	unregister_netdev (dev);
-	DMA_FREE(&pdev->dev, sizeof(struct i596_private),
-		 (void *)lp->dma, lp->dma_addr);
+	dma_free_attrs(&pdev->dev, sizeof(struct i596_private), lp->dma,
+		       lp->dma_addr, DMA_ATTR_NON_CONSISTENT);
 	free_netdev (dev);
 	return 0;
 }
diff --git a/drivers/net/ethernet/i825xx/lib82596.c b/drivers/net/ethernet/i825xx/lib82596.c
index 8449c58f01fd..f00a1dc2128c 100644
--- a/drivers/net/ethernet/i825xx/lib82596.c
+++ b/drivers/net/ethernet/i825xx/lib82596.c
@@ -1063,8 +1063,9 @@ static int i82596_probe(struct net_device *dev)
 	if (!dev->base_addr || !dev->irq)
 		return -ENODEV;
 
-	dma = (struct i596_dma *) DMA_ALLOC(dev->dev.parent,
-		sizeof(struct i596_dma), &lp->dma_addr, GFP_KERNEL);
+	dma = dma_alloc_attrs(dev->dev.parent, sizeof(struct i596_dma),
+			      &lp->dma_addr, GFP_KERNEL,
+			      DMA_ATTR_NON_CONSISTENT);
 	if (!dma) {
 		printk(KERN_ERR "%s: Couldn't get shared memory\n", __FILE__);
 		return -ENOMEM;
@@ -1085,8 +1086,8 @@ static int i82596_probe(struct net_device *dev)
 
 	i = register_netdev(dev);
 	if (i) {
-		DMA_FREE(dev->dev.parent, sizeof(struct i596_dma),
-				    (void *)dma, lp->dma_addr);
+		dma_free_attrs(dev->dev.parent, sizeof(struct i596_dma),
+			       dma, lp->dma_addr, DMA_ATTR_NON_CONSISTENT);
 		return i;
 	}
 
diff --git a/drivers/net/ethernet/i825xx/sni_82596.c b/drivers/net/ethernet/i825xx/sni_82596.c
index 2af7f77345fb..b2c04a789744 100644
--- a/drivers/net/ethernet/i825xx/sni_82596.c
+++ b/drivers/net/ethernet/i825xx/sni_82596.c
@@ -23,8 +23,6 @@
 
 static const char sni_82596_string[] = "snirm_82596";
 
-#define DMA_ALLOC                      dma_alloc_coherent
-#define DMA_FREE                       dma_free_coherent
 #define DMA_WBACK(priv, addr, len)     do { } while (0)
 #define DMA_INV(priv, addr, len)       do { } while (0)
 #define DMA_WBACK_INV(priv, addr, len) do { } while (0)
@@ -152,8 +150,8 @@ static int sni_82596_driver_remove(struct platform_device *pdev)
 	struct i596_private *lp = netdev_priv(dev);
 
 	unregister_netdev(dev);
-	DMA_FREE(dev->dev.parent, sizeof(struct i596_private),
-		 lp->dma, lp->dma_addr);
+	dma_free_attrs(dev->dev.parent, sizeof(struct i596_private), lp->dma,
+		       lp->dma_addr, DMA_ATTR_NON_CONSISTENT);
 	iounmap(lp->ca);
 	iounmap(lp->mpu_port);
 	free_netdev (dev);
-- 
2.11.0



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Subject: [PATCH 4/4] dma-mapping: remove dma_alloc_noncoherent and dma_free_noncoherent
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No users left, everyone switched to the _attrs versions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 Documentation/DMA-API.txt            | 30 ++++++++++++++++--------------
 arch/metag/include/asm/dma-mapping.h |  2 +-
 arch/nios2/include/asm/dma-mapping.h |  2 +-
 arch/tile/include/asm/dma-mapping.h  |  4 ++--
 include/linux/dma-mapping.h          | 14 --------------
 5 files changed, 20 insertions(+), 32 deletions(-)

diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 45b29326d719..ef3a04fcad65 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -515,14 +515,15 @@ API at all.
 ::
 
 	void *
-	dma_alloc_noncoherent(struct device *dev, size_t size,
-			      dma_addr_t *dma_handle, gfp_t flag)
+	dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle,
+			gfp_t flag, unsigned long attrs)
 
-Identical to dma_alloc_coherent() except that the platform will
-choose to return either consistent or non-consistent memory as it sees
-fit.  By using this API, you are guaranteeing to the platform that you
-have all the correct and necessary sync points for this memory in the
-driver should it choose to return non-consistent memory.
+Identical to dma_alloc_coherent() except that when the
+DMA_ATTR_NON_CONSISTENT flags is passed in the attrs argument, the
+platform will choose to return either consistent or non-consistent memory
+as it sees fit.  By using this API, you are guaranteeing to the platform
+that you have all the correct and necessary sync points for this memory
+in the driver should it choose to return non-consistent memory.
 
 Note: where the platform can return consistent memory, it will
 guarantee that the sync points become nops.
@@ -535,12 +536,13 @@ that simply cannot make consistent memory.
 ::
 
 	void
-	dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr,
-			     dma_addr_t dma_handle)
+	dma_free_attrs(struct device *dev, size_t size, void *cpu_addr,
+		       dma_addr_t dma_handle, unsigned long attrs)
 
-Free memory allocated by the nonconsistent API.  All parameters must
-be identical to those passed in (and returned by
-dma_alloc_noncoherent()).
+Free memory allocated by the dma_alloc_attrs().  All parameters common
+parameters must identical to those otherwise passed to dma_fre_coherent,
+and the attrs argument must be identical to the attrs passed to
+dma_alloc_attrs().
 
 ::
 
@@ -564,8 +566,8 @@ memory or doing partial flushes.
 	dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 		       enum dma_data_direction direction)
 
-Do a partial sync of memory that was allocated by
-dma_alloc_noncoherent(), starting at virtual address vaddr and
+Do a partial sync of memory that was allocated by dma_alloc_attrs() with
+the DMA_ATTR_NON_CONSISTENT flag starting at virtual address vaddr and
 continuing on for size.  Again, you *must* observe the cache line
 boundaries when doing this.
 
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index fad3dc3cb210..ea573be2b6d0 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -9,7 +9,7 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 }
 
 /*
- * dma_alloc_noncoherent() returns non-cacheable memory, so there's no need to
+ * dma_alloc_attrs() always returns non-cacheable memory, so there's no need to
  * do any flushing here.
  */
 static inline void
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index 7b3c6f280293..f8dc62222741 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -18,7 +18,7 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 }
 
 /*
- * dma_alloc_noncoherent() returns non-cacheable memory, so there's no need to
+ * dma_alloc_attrs() always returns non-cacheable memory, so there's no need to
  * do any flushing here.
  */
 static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index bbc71a29b2c6..7061dc8af43a 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -68,8 +68,8 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 int dma_set_mask(struct device *dev, u64 mask);
 
 /*
- * dma_alloc_noncoherent() is #defined to return coherent memory,
- * so there's no need to do any flushing here.
+ * dma_alloc_attrs() always returns non-cacheable memory, so there's no need to
+ * do any flushing here.
  */
 static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 				  enum dma_data_direction direction)
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 66d8ea68f40b..4c98cc96971f 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -549,20 +549,6 @@ static inline void dma_free_coherent(struct device *dev, size_t size,
 	return dma_free_attrs(dev, size, cpu_addr, dma_handle, 0);
 }
 
-static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp)
-{
-	return dma_alloc_attrs(dev, size, dma_handle, gfp,
-			       DMA_ATTR_NON_CONSISTENT);
-}
-
-static inline void dma_free_noncoherent(struct device *dev, size_t size,
-		void *cpu_addr, dma_addr_t dma_handle)
-{
-	dma_free_attrs(dev, size, cpu_addr, dma_handle,
-		       DMA_ATTR_NON_CONSISTENT);
-}

From - Thu Nov 08 21:40:17 2018
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* Dan Williams <dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>:
> On Fri, Aug 25, 2017 at 9:19 AM, Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org> wrote:
> > On 25.08.2017 18:16, Kirill A. Shutemov wrote:
> >> On Fri, Aug 25, 2017 at 09:02:36AM -0700, Christoph Hellwig wrote:
> >>> On Fri, Aug 25, 2017 at 06:58:03PM +0300, Kirill A. Shutemov wrote:
> >>>> Not all archs are ready for this:
> >>>>
> >>>> arch/parisc/include/uapi/asm/mman.h:#define MAP_TYPE    0x03            /* Mask for type of mapping */
> >>>> arch/parisc/include/uapi/asm/mman.h:#define MAP_FIXED   0x04            /* Interpret addr exactly */
> >>>
> >>> I'd be happy to say that we should not care about parisc for
> >>> persistent memory.  We'll just have to find a way to exclude
> >>> parisc without making life too ugly.
> >>
> >> I don't think creapling mmap() interface for one arch is the right way to
> >> go. I think the interface should be universal.
> >>
> >> I may imagine MAP_DIRECT can be useful not only for persistent memory.
> >> For tmpfs instead of mlock()?
> >
> > On parisc we have
> > #define MAP_SHARED      0x01            /* Share changes */
> > #define MAP_PRIVATE     0x02            /* Changes are private */
> > #define MAP_TYPE        0x03            /* Mask for type of mapping */
> > #define MAP_FIXED       0x04            /* Interpret addr exactly */
> > #define MAP_ANONYMOUS   0x10            /* don't use a file */
> >
> > So, if you need a MAP_DIRECT, wouldn't e.g.
> > #define MAP_DIRECT      0x08
> > be possible (for parisc, and others 0x04).
> > And if MAP_TYPE needs to include this flag on parisc:
> > #define MAP_TYPE        (0x03 | 0x08)  /* Mask for type of mapping */
> 
> The problem here is that to support new the mmap flags the arch needs
> to find a flag that is guaranteed to fail on older kernels. Defining
> MAP_DIRECT to 0x8 on parisc doesn't work because it will simply be
> ignored on older parisc kernels.
> 
> However, it's already the case that several archs have their own
> sys_mmap entry points. Those archs that can't follow the common scheme
> (only parsic it seems) will need to add a new mmap syscall. I think
> that's a reasonable tradeoff to allow every other architecture to add
> this support with their existing mmap syscall paths.

I don't want other architectures to suffer just because of parisc.
But adding a new syscall just for usage on parisc won't work either,
because nobody will add code to call it then.
 
> That means MAP_DIRECT should be defined to MAP_TYPE on parisc until it
> later defines an opt-in mechanism to a new syscall that honors
> MAP_DIRECT as a valid flag.

I'd instead propose to to introduce an ABI breakage for parisc users
(which aren't many). Most parisc users update their kernel regularily
anyway, because we fixed so many bugs in the latest kernel.

With the following patch pushed down to the stable kernel series,
MAP_DIRECT will fail as expected on those kernels, while we can
keep parisc up with current developments regarding MAP_DIRECT.

diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 9a9c2fe..43b9a1e 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -13,6 +13,7 @@
 #define MAP_PRIVATE	0x02		/* Changes are private */
 #define MAP_TYPE	0x03		/* Mask for type of mapping */
 #define MAP_FIXED	0x04		/* Interpret addr exactly */
+#define MAP_DIRECT	0x08		/* Interpret addr exactly */
 #define MAP_ANONYMOUS	0x10		/* don't use a file */
 
 #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 378a754..0499f87 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -270,6 +270,10 @@ asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
 {
 	/* Make sure the shift for mmap2 is constant (12), no matter what PAGE_SIZE
 	   we have. */
+#if !defined(CONFIG_HAVE_MAP_DIRECT_SUPPORT)
+	if (flags & MAP_DIRECT)
+		return -EINVAL;
+#endif
 	return sys_mmap_pgoff(addr, len, prot, flags, fd,
 			      pgoff >> (PAGE_SHIFT - 12));
 }
@@ -278,6 +282,10 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
 		unsigned long prot, unsigned long flags, unsigned long fd,
 		unsigned long offset)
 {
+#if !defined(CONFIG_HAVE_MAP_DIRECT_SUPPORT)
+	if (flags & MAP_DIRECT)
+		return -EINVAL;
+#endif
 	if (!(offset & ~PAGE_MASK)) {
 		return sys_mmap_pgoff(addr, len, prot, flags, fd,
 					offset >> PAGE_SHIFT);


Helge

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On Sat, Aug 26, 2017 at 09:21:22AM +0200, Christoph Hellwig wrote:

Looks good,

Acked-by: Ralf Baechle <ralf@linux-mips.org>

  Ralf


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On Sat, Aug 26, 2017 at 09:21:24AM +0200, Christoph Hellwig wrote:

Adding Thomas Bogendoerfer <tsbogend@alpha.franken.de>, the author of
sni_82596.c to cc.

> This way we can always pass DMA_ATTR_NON_CONSISTENT, the SNI mips version
> will simply ignore the flag.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  drivers/net/ethernet/i825xx/lasi_82596.c | 6 ++----
>  drivers/net/ethernet/i825xx/lib82596.c   | 9 +++++----
>  drivers/net/ethernet/i825xx/sni_82596.c  | 6 ++----
>  3 files changed, 9 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/net/ethernet/i825xx/lasi_82596.c b/drivers/net/ethernet/i825xx/lasi_82596.c
> index d787fdd5db7b..d5b5021aa759 100644
> --- a/drivers/net/ethernet/i825xx/lasi_82596.c
> +++ b/drivers/net/ethernet/i825xx/lasi_82596.c
> @@ -96,8 +96,6 @@
>  
>  #define OPT_SWAP_PORT	0x0001	/* Need to wordswp on the MPU port */
>  
> -#define DMA_ALLOC                        dma_alloc_noncoherent
> -#define DMA_FREE                         dma_free_noncoherent
>  #define DMA_WBACK(ndev, addr, len) \
>  	do { dma_cache_sync((ndev)->dev.parent, (void *)addr, len, DMA_TO_DEVICE); } while (0)
>  
> @@ -200,8 +198,8 @@ static int lan_remove_chip(struct parisc_device *pdev)
>  	struct i596_private *lp = netdev_priv(dev);
>  
>  	unregister_netdev (dev);
> -	DMA_FREE(&pdev->dev, sizeof(struct i596_private),
> -		 (void *)lp->dma, lp->dma_addr);
> +	dma_free_attrs(&pdev->dev, sizeof(struct i596_private), lp->dma,
> +		       lp->dma_addr, DMA_ATTR_NON_CONSISTENT);
>  	free_netdev (dev);
>  	return 0;
>  }
> diff --git a/drivers/net/ethernet/i825xx/lib82596.c b/drivers/net/ethernet/i825xx/lib82596.c
> index 8449c58f01fd..f00a1dc2128c 100644
> --- a/drivers/net/ethernet/i825xx/lib82596.c
> +++ b/drivers/net/ethernet/i825xx/lib82596.c
> @@ -1063,8 +1063,9 @@ static int i82596_probe(struct net_device *dev)
>  	if (!dev->base_addr || !dev->irq)
>  		return -ENODEV;
>  
> -	dma = (struct i596_dma *) DMA_ALLOC(dev->dev.parent,
> -		sizeof(struct i596_dma), &lp->dma_addr, GFP_KERNEL);
> +	dma = dma_alloc_attrs(dev->dev.parent, sizeof(struct i596_dma),
> +			      &lp->dma_addr, GFP_KERNEL,
> +			      DMA_ATTR_NON_CONSISTENT);
>  	if (!dma) {
>  		printk(KERN_ERR "%s: Couldn't get shared memory\n", __FILE__);
>  		return -ENOMEM;
> @@ -1085,8 +1086,8 @@ static int i82596_probe(struct net_device *dev)
>  
>  	i = register_netdev(dev);
>  	if (i) {
> -		DMA_FREE(dev->dev.parent, sizeof(struct i596_dma),
> -				    (void *)dma, lp->dma_addr);
> +		dma_free_attrs(dev->dev.parent, sizeof(struct i596_dma),
> +			       dma, lp->dma_addr, DMA_ATTR_NON_CONSISTENT);
>  		return i;
>  	}
>  
> diff --git a/drivers/net/ethernet/i825xx/sni_82596.c b/drivers/net/ethernet/i825xx/sni_82596.c
> index 2af7f77345fb..b2c04a789744 100644
> --- a/drivers/net/ethernet/i825xx/sni_82596.c
> +++ b/drivers/net/ethernet/i825xx/sni_82596.c
> @@ -23,8 +23,6 @@
>  
>  static const char sni_82596_string[] = "snirm_82596";
>  
> -#define DMA_ALLOC                      dma_alloc_coherent
> -#define DMA_FREE                       dma_free_coherent
>  #define DMA_WBACK(priv, addr, len)     do { } while (0)
>  #define DMA_INV(priv, addr, len)       do { } while (0)
>  #define DMA_WBACK_INV(priv, addr, len) do { } while (0)
> @@ -152,8 +150,8 @@ static int sni_82596_driver_remove(struct platform_device *pdev)
>  	struct i596_private *lp = netdev_priv(dev);
>  
>  	unregister_netdev(dev);
> -	DMA_FREE(dev->dev.parent, sizeof(struct i596_private),
> -		 lp->dma, lp->dma_addr);
> +	dma_free_attrs(dev->dev.parent, sizeof(struct i596_private), lp->dma,
> +		       lp->dma_addr, DMA_ATTR_NON_CONSISTENT);
>  	iounmap(lp->ca);
>  	iounmap(lp->mpu_port);
>  	free_netdev (dev);
> -- 
> 2.11.0


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Cc: "Kirill A. Shutemov" <kirill@shutemov.name>,
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        Andrew Morton <akpm@linux-foundation.org>,
        Jan Kara <jack@suse.cz>, Arnd Bergmann <arnd@arndb.de>,
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On Sat, Aug 26, 2017 at 12:40 AM, Helge Deller <deller@gmx.de> wrote:
> * Dan Williams <dan.j.williams@intel.com>:
>> On Fri, Aug 25, 2017 at 9:19 AM, Helge Deller <deller@gmx.de> wrote:
>> > On 25.08.2017 18:16, Kirill A. Shutemov wrote:
>> >> On Fri, Aug 25, 2017 at 09:02:36AM -0700, Christoph Hellwig wrote:
>> >>> On Fri, Aug 25, 2017 at 06:58:03PM +0300, Kirill A. Shutemov wrote:
>> >>>> Not all archs are ready for this:
>> >>>>
>> >>>> arch/parisc/include/uapi/asm/mman.h:#define MAP_TYPE    0x03            /* Mask for type of mapping */
>> >>>> arch/parisc/include/uapi/asm/mman.h:#define MAP_FIXED   0x04            /* Interpret addr exactly */
>> >>>
>> >>> I'd be happy to say that we should not care about parisc for
>> >>> persistent memory.  We'll just have to find a way to exclude
>> >>> parisc without making life too ugly.
>> >>
>> >> I don't think creapling mmap() interface for one arch is the right way to
>> >> go. I think the interface should be universal.
>> >>
>> >> I may imagine MAP_DIRECT can be useful not only for persistent memory.
>> >> For tmpfs instead of mlock()?
>> >
>> > On parisc we have
>> > #define MAP_SHARED      0x01            /* Share changes */
>> > #define MAP_PRIVATE     0x02            /* Changes are private */
>> > #define MAP_TYPE        0x03            /* Mask for type of mapping */
>> > #define MAP_FIXED       0x04            /* Interpret addr exactly */
>> > #define MAP_ANONYMOUS   0x10            /* don't use a file */
>> >
>> > So, if you need a MAP_DIRECT, wouldn't e.g.
>> > #define MAP_DIRECT      0x08
>> > be possible (for parisc, and others 0x04).
>> > And if MAP_TYPE needs to include this flag on parisc:
>> > #define MAP_TYPE        (0x03 | 0x08)  /* Mask for type of mapping */
>>
>> The problem here is that to support new the mmap flags the arch needs
>> to find a flag that is guaranteed to fail on older kernels. Defining
>> MAP_DIRECT to 0x8 on parisc doesn't work because it will simply be
>> ignored on older parisc kernels.
>>
>> However, it's already the case that several archs have their own
>> sys_mmap entry points. Those archs that can't follow the common scheme
>> (only parsic it seems) will need to add a new mmap syscall. I think
>> that's a reasonable tradeoff to allow every other architecture to add
>> this support with their existing mmap syscall paths.
>
> I don't want other architectures to suffer just because of parisc.
> But adding a new syscall just for usage on parisc won't work either,
> because nobody will add code to call it then.

I don't understand this comment, if / when parisc gets around to
adding pmem and dax support why wouldn't libc grow support for the new
parisc mmap variant? Also, it's not just MAP_DIRECT you would also
need space for a MAP_SYNC flag.

>> That means MAP_DIRECT should be defined to MAP_TYPE on parisc until it
>> later defines an opt-in mechanism to a new syscall that honors
>> MAP_DIRECT as a valid flag.
>
> I'd instead propose to to introduce an ABI breakage for parisc users
> (which aren't many). Most parisc users update their kernel regularily
> anyway, because we fixed so many bugs in the latest kernel.
>
> With the following patch pushed down to the stable kernel series,
> MAP_DIRECT will fail as expected on those kernels, while we can
> keep parisc up with current developments regarding MAP_DIRECT.

The whole point is to avoid an ABI regression and the chance for false
positive results. We're immediately stuck if some application was
expecting 0x8 to be ignored, or conversely an application that
absolutely needs to rely on MAP_SYNC/MAP_DIRECT semantics assumes the
wrong result on a parisc kernel where they are ignored.

I have not seen any patches for parisc pmem+dax enabling so it seems
too early to worry about these "last mile" enabling features of
MAP_DIRECT and MAP_SYNC. In particular parisc doesn't appear to have
ARCH_ENABLE_MEMORY_HOTPLUG, so as far as I can see it can't yet
support the ZONE_DEVICE scheme that is a pre-requisite for MAP_DIRECT.
--
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From - Thu Nov 08 21:40:17 2018
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Subject: Re: [PATCH v6 3/5] mm: introduce mmap3 for safely defining new mmap
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On 26.08.2017 17:15, Dan Williams wrote:
> On Sat, Aug 26, 2017 at 12:40 AM, Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org> wrote:
>> * Dan Williams <dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>:
>>> On Fri, Aug 25, 2017 at 9:19 AM, Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org> wrote:
>>>> On 25.08.2017 18:16, Kirill A. Shutemov wrote:
>>>>> On Fri, Aug 25, 2017 at 09:02:36AM -0700, Christoph Hellwig wrote:
>>>>>> On Fri, Aug 25, 2017 at 06:58:03PM +0300, Kirill A. Shutemov wrote:
>>>>>>> Not all archs are ready for this:
>>>>>>>
>>>>>>> arch/parisc/include/uapi/asm/mman.h:#define MAP_TYPE    0x03            /* Mask for type of mapping */
>>>>>>> arch/parisc/include/uapi/asm/mman.h:#define MAP_FIXED   0x04            /* Interpret addr exactly */
>>>>>>
>>>>>> I'd be happy to say that we should not care about parisc for
>>>>>> persistent memory.  We'll just have to find a way to exclude
>>>>>> parisc without making life too ugly.
>>>>>
>>>>> I don't think creapling mmap() interface for one arch is the right way to
>>>>> go. I think the interface should be universal.
>>>>>
>>>>> I may imagine MAP_DIRECT can be useful not only for persistent memory.
>>>>> For tmpfs instead of mlock()?
>>>>
>>>> On parisc we have
>>>> #define MAP_SHARED      0x01            /* Share changes */
>>>> #define MAP_PRIVATE     0x02            /* Changes are private */
>>>> #define MAP_TYPE        0x03            /* Mask for type of mapping */
>>>> #define MAP_FIXED       0x04            /* Interpret addr exactly */
>>>> #define MAP_ANONYMOUS   0x10            /* don't use a file */
>>>>
>>>> So, if you need a MAP_DIRECT, wouldn't e.g.
>>>> #define MAP_DIRECT      0x08
>>>> be possible (for parisc, and others 0x04).
>>>> And if MAP_TYPE needs to include this flag on parisc:
>>>> #define MAP_TYPE        (0x03 | 0x08)  /* Mask for type of mapping */
>>>
>>> The problem here is that to support new the mmap flags the arch needs
>>> to find a flag that is guaranteed to fail on older kernels. Defining
>>> MAP_DIRECT to 0x8 on parisc doesn't work because it will simply be
>>> ignored on older parisc kernels.
>>>
>>> However, it's already the case that several archs have their own
>>> sys_mmap entry points. Those archs that can't follow the common scheme
>>> (only parsic it seems) will need to add a new mmap syscall. I think
>>> that's a reasonable tradeoff to allow every other architecture to add
>>> this support with their existing mmap syscall paths.
>>
>> I don't want other architectures to suffer just because of parisc.
>> But adding a new syscall just for usage on parisc won't work either,
>> because nobody will add code to call it then.
> 
> I don't understand this comment, if / when parisc gets around to
> adding pmem and dax support why wouldn't libc grow support for the new
> parisc mmap variant? Also, it's not just MAP_DIRECT you would also
> need space for a MAP_SYNC flag.
> 
>>> That means MAP_DIRECT should be defined to MAP_TYPE on parisc until it
>>> later defines an opt-in mechanism to a new syscall that honors
>>> MAP_DIRECT as a valid flag.
>>
>> I'd instead propose to to introduce an ABI breakage for parisc users
>> (which aren't many). Most parisc users update their kernel regularily
>> anyway, because we fixed so many bugs in the latest kernel.
>>
>> With the following patch pushed down to the stable kernel series,
>> MAP_DIRECT will fail as expected on those kernels, while we can
>> keep parisc up with current developments regarding MAP_DIRECT.
> 
> The whole point is to avoid an ABI regression and the chance for false
> positive results. We're immediately stuck if some application was
> expecting 0x8 to be ignored, or conversely an application that
> absolutely needs to rely on MAP_SYNC/MAP_DIRECT semantics assumes the
> wrong result on a parisc kernel where they are ignored.
> 
> I have not seen any patches for parisc pmem+dax enabling so it seems
> too early to worry about these "last mile" enabling features of
> MAP_DIRECT and MAP_SYNC. In particular parisc doesn't appear to have
> ARCH_ENABLE_MEMORY_HOTPLUG, so as far as I can see it can't yet
> support the ZONE_DEVICE scheme that is a pre-requisite for MAP_DIRECT.

I see, but then it's probably best to not to define any MAP_DIRECT or 
MAP_SYNC at all in the headers of those arches which don't support
pmem+dax (parisc, m68k, alpha, and probably quite some others).
That way applications can detect at configure time if the platform
supports that, and can leave out the functionality completely.

Helge

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From: Dan Williams <dan.j.williams@intel.com>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.hardware.nvdimm,gmane.linux.kernel.api,gmane.linux.kernel,gmane.linux.file-systems,gmane.linux.ports.parisc
Subject: Re: [PATCH v6 3/5] mm: introduce mmap3 for safely defining new mmap flags
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Cc: "Kirill A. Shutemov" <kirill@shutemov.name>, Christoph Hellwig <hch@infradead.org>, 
	Andrew Morton <akpm@linux-foundation.org>, Jan Kara <jack@suse.cz>, Arnd Bergmann <arnd@arndb.de>, 
	"linux-nvdimm@lists.01.org" <linux-nvdimm@lists.01.org>, Linux API <linux-api@vger.kernel.org>, 
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, linux-xfs@vger.kernel.org, 
	Linux MM <linux-mm@kvack.org>, Andy Lutomirski <luto@kernel.org>, 
	linux-fsdevel <linux-fsdevel@vger.kernel.org>, 
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>, linux-parisc@vger.kernel.org
To: Helge Deller <deller@gmx.de>
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On Sat, Aug 26, 2017 at 12:50 PM, Helge Deller <deller@gmx.de> wrote:
> On 26.08.2017 17:15, Dan Williams wrote:
[..]
>> I have not seen any patches for parisc pmem+dax enabling so it seems
>> too early to worry about these "last mile" enabling features of
>> MAP_DIRECT and MAP_SYNC. In particular parisc doesn't appear to have
>> ARCH_ENABLE_MEMORY_HOTPLUG, so as far as I can see it can't yet
>> support the ZONE_DEVICE scheme that is a pre-requisite for MAP_DIRECT.
>
> I see, but then it's probably best to not to define any MAP_DIRECT or
> MAP_SYNC at all in the headers of those arches which don't support
> pmem+dax (parisc, m68k, alpha, and probably quite some others).
> That way applications can detect at configure time if the platform
> supports that, and can leave out the functionality completely.

Yes, that's a good idea we can handle this similar to
CONFIG_MMAP_ALLOW_UNINITIALIZED. These patches will also modify
'struct file_operations' so that do_mmap() can validate whether a flag
is supported on per architecture basis. Also the plan is to plumb the
flags passed to the syscall all the way down to the individual mmap
implementations. The ext4 and xfs ->mmap() operations will be able to
return -EOPNOTSUP based on runtime variables.

--
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From - Thu Nov 08 21:40:17 2018
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From: "Kirill A. Shutemov" <kirill@shutemov.name>
Newsgroups: gmane.linux.kernel.mm,gmane.linux.hardware.nvdimm,gmane.linux.kernel.api,gmane.linux.kernel,gmane.linux.file-systems,gmane.linux.ports.parisc
Subject: Re: [PATCH v6 3/5] mm: introduce mmap3 for safely defining new mmap
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Date: Sun, 27 Aug 2017 02:56:09 +0300
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Cc: Helge Deller <deller@gmx.de>, Christoph Hellwig <hch@infradead.org>,
	Andrew Morton <akpm@linux-foundation.org>, Jan Kara <jack@suse.cz>,
	Arnd Bergmann <arnd@arndb.de>,
	"linux-nvdimm@lists.01.org" <linux-nvdimm@lists.01.org>,
	Linux API <linux-api@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	linux-xfs@vger.kernel.org, Linux MM <linux-mm@kvack.org>,
	Andy Lutomirski <luto@kernel.org>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
	linux-parisc@vger.kernel.org
To: Dan Williams <dan.j.williams@intel.com>
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On Sat, Aug 26, 2017 at 03:46:22PM -0700, Dan Williams wrote:
> On Sat, Aug 26, 2017 at 12:50 PM, Helge Deller <deller@gmx.de> wrote:
> > On 26.08.2017 17:15, Dan Williams wrote:
> [..]
> >> I have not seen any patches for parisc pmem+dax enabling so it seems
> >> too early to worry about these "last mile" enabling features of
> >> MAP_DIRECT and MAP_SYNC. In particular parisc doesn't appear to have
> >> ARCH_ENABLE_MEMORY_HOTPLUG, so as far as I can see it can't yet
> >> support the ZONE_DEVICE scheme that is a pre-requisite for MAP_DIRECT.
> >
> > I see, but then it's probably best to not to define any MAP_DIRECT or
> > MAP_SYNC at all in the headers of those arches which don't support
> > pmem+dax (parisc, m68k, alpha, and probably quite some others).
> > That way applications can detect at configure time if the platform
> > supports that, and can leave out the functionality completely.
> 
> Yes, that's a good idea we can handle this similar to
> CONFIG_MMAP_ALLOW_UNINITIALIZED. These patches will also modify
> 'struct file_operations' so that do_mmap() can validate whether a flag
> is supported on per architecture basis. Also the plan is to plumb the
> flags passed to the syscall all the way down to the individual mmap
> implementations. The ext4 and xfs ->mmap() operations will be able to
> return -EOPNOTSUP based on runtime variables.

BTW, we may be able to reuse the bit used for MAP_UNINITIALIZED -- it's
only used on !MMU machines.

-- 
 Kirill A. Shutemov

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From: Christoph Hellwig <hch@lst.de>
Date: Sat, 26 Aug 2017 09:21:22 +0200

> Use dma_alloc_attrs directly instead of the dma_alloc_noncoherent wrapper.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Acked-by: David S. Miller <davem@davemloft.net>
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From: Christoph Hellwig <hch@lst.de>
Date: Sat, 26 Aug 2017 09:21:23 +0200

> Use dma_alloc_attrs directly instead of the dma_alloc_noncoherent wrapper.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Acked-by: David S. Miller <davem@davemloft.net>


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From: Christoph Hellwig <hch@lst.de>
Date: Sat, 26 Aug 2017 09:21:24 +0200

> This way we can always pass DMA_ATTR_NON_CONSISTENT, the SNI mips version
> will simply ignore the flag.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Acked-by: David S. Miller <davem@davemloft.net>


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From - Thu Nov 08 21:40:18 2018
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To: Babu Moger <babu.moger@oracle.com>
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On Thu, Jul 06, 2017 at 09:34:18AM -0700, Babu Moger wrote:
> Resending the series per Greg KH's request.
> 
> Found this problem while enabling queued rwlock on SPARC.
> The parameter CONFIG_CPU_BIG_ENDIAN is used to clear the
> specific byte in qrwlock structure. Without this parameter,
> we clear the wrong byte.
> Here is the code in include/asm-generic/qrwlock.h
> 
> static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
>   {
>          return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
>   }
> 
> Also found few more references of this parameter in
> drivers/of/base.c
> drivers/of/fdt.c
> drivers/tty/serial/earlycon.c
> drivers/tty/serial/serial_core.c
> 
> Here is our previous discussion.
> https://lkml.org/lkml/2017/5/24/620
> 
> Based on the discussion, it was decided to add CONFIG_CPU_BIG_ENDIAN
> for all the fixed big endian architecture(frv, h8300, m68k, openrisc,
> parisc and sparc). And warn if there are inconsistencies in this definition.

Did this series ever get picked up by anyone?  I don't know whose tree
it should go through if not, anyone have any ideas?  I guess I could,
but arch-specific stuff is odd...

thanks,

greg k-h
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Hi Greg,

Today's linux-next merge of the tty tree got a conflict in:

  drivers/tty/serial/8250/8250_gsc.c

between commit:

  9e466f101e19 ("parisc/8250_gsc: Fix section mismatches")

from the parisc-hd tree and commit:

  0d474f7fad3b ("tty: 8250: constify parisc_device_id")

from the tty tree.

I fixed it up (the former is a superset of the latter) and can carry the
fix as necessary. This is now fixed as far as linux-next is concerned,
but any non trivial conflicts should be mentioned to your upstream
maintainer when your tree is submitted for merging.  You may also want
to consider cooperating with the maintainer of the conflicting tree to
minimise any particularly complex conflicts.

-- 
Cheers,
Stephen Rothwell

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Hi Greg,

Today's linux-next merge of the tty tree got a conflict in:

  drivers/tty/serial/mux.c

between commit:

  fc72b7a3a0d8 ("parisc/mux: Fix section mismatches")

from the parisc-hd tree and commit:

  829374f544b3 ("tty: mux: constify parisc_device_id")

from the tty tree.

I fixed it up (the former is a superset of the latter) and can carry the
fix as necessary. This is now fixed as far as linux-next is concerned,
but any non trivial conflicts should be mentioned to your upstream
maintainer when your tree is submitted for merging.  You may also want
to consider cooperating with the maintainer of the conflicting tree to
minimise any particularly complex conflicts.

-- 
Cheers,
Stephen Rothwell

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On Tue, Aug 29, 2017 at 04:35:13PM +1000, Stephen Rothwell wrote:
> Hi Greg,
> 
> Today's linux-next merge of the tty tree got a conflict in:
> 
>   drivers/tty/serial/8250/8250_gsc.c
> 
> between commit:
> 
>   9e466f101e19 ("parisc/8250_gsc: Fix section mismatches")
> 
> from the parisc-hd tree and commit:
> 
>   0d474f7fad3b ("tty: 8250: constify parisc_device_id")
> 
> from the tty tree.
> 
> I fixed it up (the former is a superset of the latter) and can carry the
> fix as necessary. This is now fixed as far as linux-next is concerned,
> but any non trivial conflicts should be mentioned to your upstream
> maintainer when your tree is submitted for merging.  You may also want
> to consider cooperating with the maintainer of the conflicting tree to
> minimise any particularly complex conflicts.

Thanks for letting me know about this, and the other conflict here.

greg k-h
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From - Thu Nov 08 21:40:18 2018
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From: Christoph Hellwig <hch@lst.de>
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Subject: Re: [PATCH 1/4] sgiseeq: switch to dma_alloc_attrs
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References: <20170826072125.9790-1-hch@lst.de> <20170826072125.9790-2-hch@lst.de> <20170828.154151.502026172655565151.davem@davemloft.net>
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To: David Miller <davem@davemloft.net>
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On Mon, Aug 28, 2017 at 03:41:51PM -0700, David Miller wrote:
> From: Christoph Hellwig <hch@lst.de>
> Date: Sat, 26 Aug 2017 09:21:22 +0200
> 
> > Use dma_alloc_attrs directly instead of the dma_alloc_noncoherent wrapper.
> > 
> > Signed-off-by: Christoph Hellwig <hch@lst.de>
> 
> Acked-by: David S. Miller <davem@davemloft.net>

I take the Acks as an ok to merges these patches through the dma-mapping
tree.  Thanks Dave!


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Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.parisc
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On Tue, Aug 29, 2017 at 08:30:15AM +0200, Greg KH wrote:
> On Thu, Jul 06, 2017 at 09:34:18AM -0700, Babu Moger wrote:
> > Resending the series per Greg KH's request.
> > 
> > Found this problem while enabling queued rwlock on SPARC.
> > The parameter CONFIG_CPU_BIG_ENDIAN is used to clear the
> > specific byte in qrwlock structure. Without this parameter,
> > we clear the wrong byte.
> > Here is the code in include/asm-generic/qrwlock.h
> > 
> > static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
> >   {
> >          return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
> >   }
> > 
> > Also found few more references of this parameter in
> > drivers/of/base.c
> > drivers/of/fdt.c
> > drivers/tty/serial/earlycon.c
> > drivers/tty/serial/serial_core.c
> > 
> > Here is our previous discussion.
> > https://lkml.org/lkml/2017/5/24/620
> > 
> > Based on the discussion, it was decided to add CONFIG_CPU_BIG_ENDIAN
> > for all the fixed big endian architecture(frv, h8300, m68k, openrisc,
> > parisc and sparc). And warn if there are inconsistencies in this definition.
> 
> Did this series ever get picked up by anyone?  I don't know whose tree
> it should go through if not, anyone have any ideas?  I guess I could,
> but arch-specific stuff is odd...

Seems like something that akpm would pick up, but it appears people
didn't actually Cc him.

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From - Thu Nov 08 21:40:19 2018
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From: Thomas Gleixner <tglx@linutronix.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [patch 03/29] lockup_detector: Provide interface to stop from
 poweroff()
Date: Thu, 31 Aug 2017 09:16:01 +0200
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PARISC has a a busy looping power off routine. If the watchdog is enabled
the watchdog timer will still fire, but the thread is not running, which
causes the softlockup watchdog to trigger.

Provide a interface which allows to turn the watchdog off.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 include/linux/nmi.h |    6 +++---
 kernel/watchdog.c   |   14 +++++++++++++-
 2 files changed, 16 insertions(+), 4 deletions(-)

--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -12,10 +12,10 @@
 
 #ifdef CONFIG_LOCKUP_DETECTOR
 void lockup_detector_init(void);
+void lockup_detector_soft_poweroff(void);
 #else
-static inline void lockup_detector_init(void)
-{
-}
+static inline void lockup_detector_init(void) { }
+static inline void lockup_detector_soft_poweroff(void) { }
 #endif
 
 #ifdef CONFIG_SOFTLOCKUP_DETECTOR
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -333,7 +333,8 @@ static enum hrtimer_restart watchdog_tim
 	int duration;
 	int softlockup_all_cpu_backtrace = sysctl_softlockup_all_cpu_backtrace;
 
-	if (atomic_read(&watchdog_park_in_progress) != 0)
+	if (!watchdog_enabled ||
+	    atomic_read(&watchdog_park_in_progress) != 0)
 		return HRTIMER_NORESTART;
 
 	/* kick the hardlockup detector */
@@ -660,6 +661,17 @@ static void set_sample_period(void)
 }
 #endif /* SOFTLOCKUP */
 
+/**
+ * lockup_detector_soft_poweroff - Interface to stop lockup detector(s)
+ *
+ * Special interface for parisc. It prevents lockup detector warnings from
+ * the default pm_poweroff() function which busy loops forever.
+ */
+void lockup_detector_soft_poweroff(void)
+{
+	watchdog_enabled = 0;
+}
+
 /*
  * Suspend the hard and soft lockup detector by parking the watchdog threads.
  */




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Subject: [patch 04/29] parisc: Use lockup_detector_stop()
Date: Thu, 31 Aug 2017 09:16:02 +0200
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The broken lockup_detector_suspend/resume() interface is going away. Use
the new lockup_detector_soft_poweroff() interface to stop the watchdog from
the busy looping power off routine.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
---
 arch/parisc/kernel/process.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -146,7 +146,7 @@ void machine_power_off(void)
 
 	/* prevent soft lockup/stalled CPU messages for endless loop. */
 	rcu_sysrq_start();
-	lockup_detector_suspend();
+	lockup_detector_soft_poweroff();
 	for (;;);
 }
 




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Hi Linus,

please pull fixes and enhancements for the parisc architecture for kernel 4.14 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.14-1 

Major changes include:

- Full support of the firmware Page Deallocation Table with MADV_HWPOISON and
  MADV_SOFT_OFFLINE. A kernel thread scans regularily for new bad memory pages.

- Full support for self-extracting kernel.

- Added UBSAN support.

- Lots of section mismatch fixes across all parisc drivers.

- Added examples for %pF and %pS usage in printk-formats.txt

Thanks,
Helge

----------------------------------------------------------------

Helge Deller (27):
      parisc: Add MADV_HWPOISON and MADV_SOFT_OFFLINE
      parisc: PDT/firmware: Add support to read PDT on older PAT-machines
      parisc: PDT: Add full support for memory failure via Page Deallocation Table (PDT)
      parisc: Static initialization of spinlocks in perf and unwind code
      parisc: Drop exception_data struct
      parisc: Static initialization of pcxl_res_lock spinlock
      parisc: Drop MADV_SPACEAVAIL, MADV_VPS_PURGE and MADV_VPS_INHERIT
      parisc/random: Add machine specific randomness
      parisc: Enable UBSAN support
      parisc: Add core code for self-extracting kernel
      parisc: Make existing core files reuseable for bootloader
      parisc: Wire up support for self-extracting kernel
      parisc/harmony: Fix section mismatches
      parisc/sticore: Fix section mismatches
      parisc/mux: Fix section mismatches
      parisc/8250_gsc: Fix section mismatches
      parisc/scsi/zalon: Fix section mismatches
      parisc/scsi/lasi700: Fix section mismatches
      parisc/parport_gsc: Fix section mismatches
      parisc: Fix section mismatches in parisc core drivers
      parisc/serio: Fix section mismatches in gscps2 and hp_sdc drivers
      parisc/net/lasi_82596: Fix section mismatches
      parisc/input/hilkbd: Fix section mismatches
      parisc/ipmi_si_intf: Fix section mismatches on parisc platform
      parisc/core: Fix section mismatches
      parisc: Fix up devices below a PCI-PCI MegaRAID controller bridge
      printk-formats.txt: Add examples for %pF and %pS usage

John David Anglin (1):
      parisc: Optimize switch_mm

 Documentation/printk-formats.txt          |  10 +
 arch/parisc/Kconfig                       |   9 +
 arch/parisc/Makefile                      |  16 +-
 arch/parisc/boot/.gitignore               |   2 +
 arch/parisc/boot/Makefile                 |  26 +++
 arch/parisc/boot/compressed/.gitignore    |   3 +
 arch/parisc/boot/compressed/Makefile      |  86 +++++++++
 arch/parisc/boot/compressed/head.S        |  85 +++++++++
 arch/parisc/boot/compressed/misc.c        | 301 ++++++++++++++++++++++++++++++
 arch/parisc/boot/compressed/vmlinux.lds.S | 101 ++++++++++
 arch/parisc/boot/compressed/vmlinux.scr   |  10 +
 arch/parisc/boot/install.sh               |  65 +++++++
 arch/parisc/include/asm/mmu_context.h     |   3 +
 arch/parisc/include/asm/page.h            |   4 +
 arch/parisc/include/asm/pdc.h             |   2 +
 arch/parisc/include/asm/pdcpat.h          |  14 ++
 arch/parisc/include/uapi/asm/mman.h       |   6 +-
 arch/parisc/kernel/firmware.c             |  62 +++++-
 arch/parisc/kernel/pci-dma.c              |   3 +-
 arch/parisc/kernel/pdt.c                  | 280 +++++++++++++++++++++++----
 arch/parisc/kernel/perf.c                 |   4 +-
 arch/parisc/kernel/processor.c            |  30 ++-
 arch/parisc/kernel/real2.S                |   4 +
 arch/parisc/kernel/unwind.c               |   4 +-
 arch/parisc/lib/memcpy.c                  |   2 -
 drivers/char/ipmi/ipmi_si_intf.c          |  12 +-
 drivers/input/keyboard/hilkbd.c           |  10 +-
 drivers/input/serio/gscps2.c              |  10 +-
 drivers/input/serio/hp_sdc.c              |   4 +-
 drivers/net/ethernet/i825xx/lasi_82596.c  |  10 +-
 drivers/parisc/asp.c                      |   4 +-
 drivers/parisc/ccio-dma.c                 |   4 +-
 drivers/parisc/ccio-rm-dma.c              |   6 +-
 drivers/parisc/dino.c                     |   4 +-
 drivers/parisc/eisa.c                     |   4 +-
 drivers/parisc/hppb.c                     |   6 +-
 drivers/parisc/lasi.c                     |   4 +-
 drivers/parisc/lba_pci.c                  |  46 ++++-
 drivers/parisc/sba_iommu.c                |   6 +-
 drivers/parisc/superio.c                  |   4 +-
 drivers/parisc/wax.c                      |   4 +-
 drivers/parport/parport_gsc.c             |  10 +-
 drivers/scsi/lasi700.c                    |   6 +-
 drivers/scsi/zalon.c                      |   8 +-
 drivers/tty/serial/8250/8250_gsc.c        |   8 +-
 drivers/tty/serial/mux.c                  |  14 +-
 drivers/video/console/sticore.c           |  11 +-
 sound/parisc/harmony.c                    |  10 +-
 tools/arch/parisc/include/uapi/asm/mman.h |   2 -
 49 files changed, 1182 insertions(+), 157 deletions(-)
 create mode 100644 arch/parisc/boot/.gitignore
 create mode 100644 arch/parisc/boot/Makefile
 create mode 100644 arch/parisc/boot/compressed/.gitignore
 create mode 100644 arch/parisc/boot/compressed/Makefile
 create mode 100644 arch/parisc/boot/compressed/head.S
 create mode 100644 arch/parisc/boot/compressed/misc.c
 create mode 100644 arch/parisc/boot/compressed/vmlinux.lds.S
 create mode 100644 arch/parisc/boot/compressed/vmlinux.scr
 create mode 100644 arch/parisc/boot/install.sh


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Hi all,

On Tue, 22 Aug 2017 16:53:18 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> Today's linux-next merge of the akpm-current tree got a conflict in:
> 
>   arch/parisc/include/uapi/asm/mman.h
> 
> between commit:
> 
>   1c190151447d ("parisc: Add MADV_HWPOISON and MADV_SOFT_OFFLINE")
> 
> from the parisc-hd tree and commit:
> 
>   115d20ededaf ("mm,fork: introduce MADV_WIPEONFORK")
> 
> from the akpm-current tree.
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> diff --cc arch/parisc/include/uapi/asm/mman.h
> index 9a9c2fe4be50,f6eec376e5fa..000000000000
> --- a/arch/parisc/include/uapi/asm/mman.h
> +++ b/arch/parisc/include/uapi/asm/mman.h
> @@@ -57,9 -60,9 +57,12 @@@
>   					   overrides the coredump filter bits */
>   #define MADV_DODUMP	70		/* Clear the MADV_NODUMP flag */
>   
> + #define MADV_WIPEONFORK 71		/* Zero memory on fork, child only */
> + #define MADV_KEEPONFORK 72		/* Undo MADV_WIPEONFORK */
> + 
>  +#define MADV_HWPOISON     100		/* poison a page for testing */
>  +#define MADV_SOFT_OFFLINE 101		/* soft offline page for testing */
>  +
>   /* compatibility flags */
>   #define MAP_FILE	0
>   #define MAP_VARIABLE	0

Just a reminder that the above conflict still exists.

-- 
Cheers,
Stephen Rothwell

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On 05.09.2017 02:34, Stephen Rothwell wrote:
> Hi all,
> 
> On Tue, 22 Aug 2017 16:53:18 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>>
>> Today's linux-next merge of the akpm-current tree got a conflict in:
>>
>>   arch/parisc/include/uapi/asm/mman.h
>>
>> between commit:
>>
>>   1c190151447d ("parisc: Add MADV_HWPOISON and MADV_SOFT_OFFLINE")
>>
>> from the parisc-hd tree and commit:
>>
>>   115d20ededaf ("mm,fork: introduce MADV_WIPEONFORK")
>>
>> from the akpm-current tree.
>>
>> I fixed it up (see below) and can carry the fix as necessary. This
>> is now fixed as far as linux-next is concerned, but any non trivial
>> conflicts should be mentioned to your upstream maintainer when your tree
>> is submitted for merging.  You may also want to consider cooperating
>> with the maintainer of the conflicting tree to minimise any particularly
>> complex conflicts.
>>
>> diff --cc arch/parisc/include/uapi/asm/mman.h
>> index 9a9c2fe4be50,f6eec376e5fa..000000000000
>> --- a/arch/parisc/include/uapi/asm/mman.h
>> +++ b/arch/parisc/include/uapi/asm/mman.h
>> @@@ -57,9 -60,9 +57,12 @@@
>>   					   overrides the coredump filter bits */
>>   #define MADV_DODUMP	70		/* Clear the MADV_NODUMP flag */
>>   
>> + #define MADV_WIPEONFORK 71		/* Zero memory on fork, child only */
>> + #define MADV_KEEPONFORK 72		/* Undo MADV_WIPEONFORK */
>> + 
>>  +#define MADV_HWPOISON     100		/* poison a page for testing */
>>  +#define MADV_SOFT_OFFLINE 101		/* soft offline page for testing */
>>  +
>>   /* compatibility flags */
>>   #define MAP_FILE	0
>>   #define MAP_VARIABLE	0
> 
> Just a reminder that the above conflict still exists.

Thanks Stephen!

@Andrew, I can push the addition of those two MADV_ constants to 
arch/parisc/include/uapi/asm/mman.h through the parisc git tree, 
if you drop this part from your patchset.
Otherwise, just let me know how you prefer to solve this merge conflict. 

Helge


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Hi Helge,

On Tue, 5 Sep 2017 08:09:01 +0200 Helge Deller <deller@gmx.de> wrote:
>
> >> diff --cc arch/parisc/include/uapi/asm/mman.h
> >> index 9a9c2fe4be50,f6eec376e5fa..000000000000
> >> --- a/arch/parisc/include/uapi/asm/mman.h
> >> +++ b/arch/parisc/include/uapi/asm/mman.h
> >> @@@ -57,9 -60,9 +57,12 @@@
> >>   					   overrides the coredump filter bits */
> >>   #define MADV_DODUMP	70		/* Clear the MADV_NODUMP flag */
> >>   
> >> + #define MADV_WIPEONFORK 71		/* Zero memory on fork, child only */
> >> + #define MADV_KEEPONFORK 72		/* Undo MADV_WIPEONFORK */
> >> + 
> >>  +#define MADV_HWPOISON     100		/* poison a page for testing */
> >>  +#define MADV_SOFT_OFFLINE 101		/* soft offline page for testing */
> >>  +
> >>   /* compatibility flags */
> >>   #define MAP_FILE	0
> >>   #define MAP_VARIABLE	0  
> > 
> > Just a reminder that the above conflict still exists.  
> 
> Thanks Stephen!
> 
> @Andrew, I can push the addition of those two MADV_ constants to 
> arch/parisc/include/uapi/asm/mman.h through the parisc git tree, 
> if you drop this part from your patchset.
> Otherwise, just let me know how you prefer to solve this merge conflict. 

These simple conflicts are not really a problem (Linus is happy to cope
with them).  I just send these messages out for consistency and
openness.

-- 
Cheers,
Stephen Rothwell


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From: Kees Cook <keescook@chromium.org>
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Subject: [PATCH] net: tulip: Constify tulip_tbl
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It looks like all users of tulip_tbl are reads, so mark this table
as read-only.

$ git grep tulip_tbl  # edited to avoid line-wraps...
interrupt.c: iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ...
interrupt.c: iowrite32(tulip_tbl[tp->chip_id].valid_intrs&~RxPollInt, ...
interrupt.c: iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ...
interrupt.c: iowrite32(tulip_tbl[tp->chip_id].valid_intrs | TimerInt,
pnic.c:      iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
tulip.h:     extern struct tulip_chip_table tulip_tbl[];
tulip_core.c:struct tulip_chip_table tulip_tbl[] = {
tulip_core.c:iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR5);
tulip_core.c:iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
tulip_core.c:setup_timer(&tp->timer, tulip_tbl[tp->chip_id].media_timer,
tulip_core.c:const char *chip_name = tulip_tbl[chip_idx].chip_name;
tulip_core.c:if (pci_resource_len (pdev, 0) < tulip_tbl[chip_idx].io_size)
tulip_core.c:ioaddr =  pci_iomap(..., tulip_tbl[chip_idx].io_size);
tulip_core.c:tp->flags = tulip_tbl[chip_idx].flags;
tulip_core.c:setup_timer(&tp->timer, tulip_tbl[tp->chip_id].media_timer,
tulip_core.c:INIT_WORK(&tp->media_work, tulip_tbl[tp->chip_id].media_task);

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jarod Wilson <jarod@redhat.com>
Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Cc: netdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
---
 drivers/net/ethernet/dec/tulip/tulip.h      | 2 +-
 drivers/net/ethernet/dec/tulip/tulip_core.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/tulip.h b/drivers/net/ethernet/dec/tulip/tulip.h
index 38431a155f09..06660dbc44b7 100644
--- a/drivers/net/ethernet/dec/tulip/tulip.h
+++ b/drivers/net/ethernet/dec/tulip/tulip.h
@@ -515,7 +515,7 @@ void comet_timer(unsigned long data);
 extern int tulip_debug;
 extern const char * const medianame[];
 extern const char tulip_media_cap[];
-extern struct tulip_chip_table tulip_tbl[];
+extern const struct tulip_chip_table tulip_tbl[];
 void oom_timer(unsigned long data);
 extern u8 t21040_csr13[];
 
diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index 84394b43c0a1..851b6d1f5a42 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -138,7 +138,7 @@ static void tulip_timer(unsigned long data)
  * It is indexed via the values in 'enum chips'
  */
 
-struct tulip_chip_table tulip_tbl[] = {
+const struct tulip_chip_table tulip_tbl[] = {
   { }, /* placeholder for array, slot unused currently */
   { }, /* placeholder for array, slot unused currently */
 
-- 
2.7.4


-- 
Kees Cook
Pixel Security
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Subject: Re: [PATCH] net: tulip: Constify tulip_tbl
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From: Kees Cook <keescook@chromium.org>
Date: Thu, 7 Sep 2017 12:35:14 -0700

> It looks like all users of tulip_tbl are reads, so mark this table
> as read-only.
> 
> $ git grep tulip_tbl  # edited to avoid line-wraps...
> interrupt.c: iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ...
> interrupt.c: iowrite32(tulip_tbl[tp->chip_id].valid_intrs&~RxPollInt, ...
> interrupt.c: iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ...
> interrupt.c: iowrite32(tulip_tbl[tp->chip_id].valid_intrs | TimerInt,
> pnic.c:      iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
> tulip.h:     extern struct tulip_chip_table tulip_tbl[];
> tulip_core.c:struct tulip_chip_table tulip_tbl[] = {
> tulip_core.c:iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR5);
> tulip_core.c:iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
> tulip_core.c:setup_timer(&tp->timer, tulip_tbl[tp->chip_id].media_timer,
> tulip_core.c:const char *chip_name = tulip_tbl[chip_idx].chip_name;
> tulip_core.c:if (pci_resource_len (pdev, 0) < tulip_tbl[chip_idx].io_size)
> tulip_core.c:ioaddr =  pci_iomap(..., tulip_tbl[chip_idx].io_size);
> tulip_core.c:tp->flags = tulip_tbl[chip_idx].flags;
> tulip_core.c:setup_timer(&tp->timer, tulip_tbl[tp->chip_id].media_timer,
> tulip_core.c:INIT_WORK(&tp->media_work, tulip_tbl[tp->chip_id].media_task);
> 
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Jarod Wilson <jarod@redhat.com>
> Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
> Cc: netdev@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Signed-off-by: Kees Cook <keescook@chromium.org>

Applied.


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While compiling 4.13+git on all of my gentoo parisc machines, I get tons 
of linking failures like below. 

$ ld -v
GNU ld (Gentoo 2.26.1 p1.0) 2.26.1

$ hppa64-linux-gcc -v
Using built-in specs.
COLLECT_GCC=/usr/hppa2.0-unknown-linux-gnu/hppa64-unknown-linux-gnu/gcc-bin/5.4.0/hppa64-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/hppa64-unknown-linux-gnu/5.4.0/lto-wrapper
Target: hppa64-unknown-linux-gnu
Configured with: 
/var/tmp/portage/sys-devel/kgcc64-5.4.0/work/gcc-5.4.0/configure 
--host=hppa2.0-unknown-linux-gnu --target=hppa64-unknown-linux-gnu 
--build=hppa2.0-unknown-linux-gnu --prefix=/usr 
--bindir=/usr/hppa2.0-unknown-linux-gnu/hppa64-unknown-linux-gnu/gcc-bin/5.4.0 
--includedir=/usr/lib/gcc/hppa64-unknown-linux-gnu/5.4.0/include 
--datadir=/usr/share/gcc-data/hppa64-unknown-linux-gnu/5.4.0 
--mandir=/usr/share/gcc-data/hppa64-unknown-linux-gnu/5.4.0/man 
--infodir=/usr/share/gcc-data/hppa64-unknown-linux-gnu/5.4.0/info 
--with-gxx-include-dir=/usr/lib/gcc/hppa64-unknown-linux-gnu/5.4.0/include/g++-v5 
--with-python-dir=/share/gcc-data/hppa64-unknown-linux-gnu/5.4.0/python 
--enable-languages=c --enable-obsolete --enable-secureplt 
--disable-werror --with-system-zlib --enable-nls 
--without-included-gettext --enable-checking=release 
--with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo 5.4.0 p1.0' 
--enable-poison-system-directories --disable-shared 
--disable-libatomic --disable-threads --without-headers 
--disable-bootstrap --enable-__cxa_atexit --enable-clocale=gnu 
--disable-multilib --disable-altivec --disable-fixed-point 
--disable-libgcj --disable-libgomp --disable-libmudflap --disable-libssp 
--disable-libquadmath --enable-lto --without-isl --disable-libsanitizer
Thread model: single
gcc version 5.4.0 (Gentoo 5.4.0 p1.0)

hppa64-linux-ld: init/main.o(.text+0x160): cannot reach strreplace
init/main.o: In function `initcall_blacklisted':(.text+0x160): relocation truncated to fit: R_PARISC_PCREL22F against symbol `strreplace' defined in .text.strreplace section in lib/string.o
hppa64-linux-ld: init/main.o(.text+0x1a4): cannot reach strcmp
init/main.o: In function `initcall_blacklisted':(.text+0x1a4): relocation truncated to fit: R_PARISC_PCREL22F against symbol `strcmp' defined in .text.strcmp section in lib/string.o
hppa64-linux-ld: init/main.o(.text+0x22c): cannot reach __ubsan_handle_type_mismatch
init/main.o: In function `initcall_blacklisted':(.text+0x22c): relocation truncated to fit: R_PARISC_PCREL22F against symbol `__ubsan_handle_type_mismatch' defined in .text.__ubsan_handle_type_mismatch section in lib/ubsan.o

and so on for pages, more than my terminal scrollback provides.



-- 
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From - Thu Nov 08 21:40:19 2018
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From: Meelis Roos <mroos@linux.ee>
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Subject: fs/select.c:991:1: warning: the frame size of 1032 bytes is larger
 than 1024 bytes
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While looking for build logs for another problem, I noticed two warnings 
while compiling for 64-bit parisc.

This is the second of them and I think I have seen it earlier too, but 
the value was 1064 back then:

  CC      fs/select.o
fs/select.c: In function 'do_sys_poll':
fs/select.c:991:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]


-- 
Meelis Roos (mroos@linux.ee)


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From: John David Anglin <dave.anglin@bell.net>
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Subject: Re: 4.14 git: massive linker failures: cannot reach anything
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On 2017-09-11 10:17 AM, Meelis Roos wrote:
> While compiling 4.13+git on all of my gentoo parisc machines, I get tons
> of linking failures like below.
>
> $ ld -v
> GNU ld (Gentoo 2.26.1 p1.0) 2.26.1
>
> $ hppa64-linux-gcc -v
> Using built-in specs.
> COLLECT_GCC=/usr/hppa2.0-unknown-linux-gnu/hppa64-unknown-linux-gnu/gcc-bin/5.4.0/hppa64-unknown-linux-gnu-gcc
> COLLECT_LTO_WRAPPER=/usr/libexec/gcc/hppa64-unknown-linux-gnu/5.4.0/lto-wrapper
> Target: hppa64-unknown-linux-gnu
> Configured with:
> /var/tmp/portage/sys-devel/kgcc64-5.4.0/work/gcc-5.4.0/configure
> --host=hppa2.0-unknown-linux-gnu --target=hppa64-unknown-linux-gnu
> --build=hppa2.0-unknown-linux-gnu --prefix=/usr
> --bindir=/usr/hppa2.0-unknown-linux-gnu/hppa64-unknown-linux-gnu/gcc-bin/5.4.0
> --includedir=/usr/lib/gcc/hppa64-unknown-linux-gnu/5.4.0/include
> --datadir=/usr/share/gcc-data/hppa64-unknown-linux-gnu/5.4.0
> --mandir=/usr/share/gcc-data/hppa64-unknown-linux-gnu/5.4.0/man
> --infodir=/usr/share/gcc-data/hppa64-unknown-linux-gnu/5.4.0/info
> --with-gxx-include-dir=/usr/lib/gcc/hppa64-unknown-linux-gnu/5.4.0/include/g++-v5
> --with-python-dir=/share/gcc-data/hppa64-unknown-linux-gnu/5.4.0/python
> --enable-languages=c --enable-obsolete --enable-secureplt
> --disable-werror --with-system-zlib --enable-nls
> --without-included-gettext --enable-checking=release
> --with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo 5.4.0 p1.0'
> --enable-poison-system-directories --disable-shared
> --disable-libatomic --disable-threads --without-headers
> --disable-bootstrap --enable-__cxa_atexit --enable-clocale=gnu
> --disable-multilib --disable-altivec --disable-fixed-point
> --disable-libgcj --disable-libgomp --disable-libmudflap --disable-libssp
> --disable-libquadmath --enable-lto --without-isl --disable-libsanitizer
> Thread model: single
> gcc version 5.4.0 (Gentoo 5.4.0 p1.0)
>
> hppa64-linux-ld: init/main.o(.text+0x160): cannot reach strreplace
> init/main.o: In function `initcall_blacklisted':(.text+0x160): relocation truncated to fit: R_PARISC_PCREL22F against symbol `strreplace' defined in .text.strreplace section in lib/string.o
> hppa64-linux-ld: init/main.o(.text+0x1a4): cannot reach strcmp
> init/main.o: In function `initcall_blacklisted':(.text+0x1a4): relocation truncated to fit: R_PARISC_PCREL22F against symbol `strcmp' defined in .text.strcmp section in lib/string.o
> hppa64-linux-ld: init/main.o(.text+0x22c): cannot reach __ubsan_handle_type_mismatch
> init/main.o: In function `initcall_blacklisted':(.text+0x22c): relocation truncated to fit: R_PARISC_PCREL22F against symbol `__ubsan_handle_type_mismatch' defined in .text.__ubsan_handle_type_mismatch section in lib/ubsan.o
>
> and so on for pages, more than my terminal scrollback provides.
As far as gcc goes, you need to add -mlong-calls to avoid these errors.  
I think there is a config option. The kernel is too big and some "b,l" 
branches can't reach their targets.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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On 2017-09-11 10:45 AM, Meelis Roos wrote:
>>> hppa64-linux-ld: init/main.o(.text+0x22c): cannot reach
>>> __ubsan_handle_type_mismatch
>>> init/main.o: In function `initcall_blacklisted':(.text+0x22c): relocation
>>> truncated to fit: R_PARISC_PCREL22F against symbol
>>> `__ubsan_handle_type_mismatch' defined in .text.__ubsan_handle_type_mismatch
>>> section in lib/ubsan.o
>>>
>>> and so on for pages, more than my terminal scrollback provides.
>> As far as gcc goes, you need to add -mlong-calls to avoid these errors.  I
>> think there is a config option. The kernel is too big and some "b,l" branches
>> can't reach their targets.
> Thank you, yes, I found CONFIG_MLONGCALLS for that.
>
> However, the next strange thing is why did custom kernels of multiple
> different machines grew so much (A500 UP and RP3440 SMP kernels)? My
> kernel configs are quite minimalistic anyway, except I include
> everything needed for booting (no dependenc on initramfs, so sd, scsi
> driver and ext4 are in). Perhaps a binary format or two, PDC stable
> storage and anothe IO schaduler too, and some kernel debugging options
> like UBSAN.
UBSAN is huge.  Helge knows more about it.  I would only use it for test 
kernels.

Dave

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On 11.09.2017 16:51, John David Anglin wrote:
> On 2017-09-11 10:45 AM, Meelis Roos wrote:
>>>> hppa64-linux-ld: init/main.o(.text+0x22c): cannot reach
>>>> __ubsan_handle_type_mismatch
>>>> init/main.o: In function `initcall_blacklisted':(.text+0x22c): relocation
>>>> truncated to fit: R_PARISC_PCREL22F against symbol
>>>> `__ubsan_handle_type_mismatch' defined in .text.__ubsan_handle_type_mismatch
>>>> section in lib/ubsan.o
>>>>
>>>> and so on for pages, more than my terminal scrollback provides.
>>> As far as gcc goes, you need to add -mlong-calls to avoid these errors.  I
>>> think there is a config option. The kernel is too big and some "b,l" branches
>>> can't reach their targets.
>> Thank you, yes, I found CONFIG_MLONGCALLS for that.
>>
>> However, the next strange thing is why did custom kernels of multiple
>> different machines grew so much (A500 UP and RP3440 SMP kernels)? My
>> kernel configs are quite minimalistic anyway, except I include
>> everything needed for booting (no dependenc on initramfs, so sd, scsi
>> driver and ext4 are in). Perhaps a binary format or two, PDC stable
>> storage and anothe IO schaduler too, and some kernel debugging options
>> like UBSAN.

> UBSAN is huge.

Yes, UBSAN is huge and is probably the reason why you see so many linker errors.
Beside enabling CONFIG_MLONGCALLS in the kernel, you probably need to
update palo [1] to version 1.99 as well. Please remember to update palo in the
boot sector on the harddisc too (run: "palo -v" once), otherwise
palo may refuse to load your kernel because of it's size (even if it's
compressed with gzip).

Helge

[1] https://git.kernel.org/pub/scm/linux/kernel/git/deller/palo.git/
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Subject: Re: fs/select.c:991:1: warning: the frame size of 1032 bytes is
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* Meelis Roos <mroos@linux.ee>:
> fs/select.c:991:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
> arch/parisc/kernel/inventory.c:359:1: warning: the frame size of 1120 bytes is larger than 1024 bytes [-Wframe-larger-than=]

Meelis, this patch should fix both issues.
Can you test?

Helge

[PATCH] parisc: Fix too large frame size warnings

The parisc architecture requires larger stack frames than most other
architectures on 32-bit kernels.
Increase the default to 1280 bytes for parisc to avoid warnings in
do_sys_poll() and pat_memconfig() functions.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index b19c491cbc4e..2689b7c50c52 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -219,7 +219,8 @@ config FRAME_WARN
 	range 0 8192
 	default 0 if KASAN
 	default 2048 if GCC_PLUGIN_LATENT_ENTROPY
-	default 1024 if !64BIT
+	default 1280 if (!64BIT && PARISC)
+	default 1024 if (!64BIT && !PARISC)
 	default 2048 if 64BIT
 	help
 	  Tell gcc to warn at build time for stack frames larger than this.
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> Meelis, this patch should fix both issues.
> Can you test?

At least one of the warnings is still there - but I am on a 64-bit 
kernel on RP3440, RP3410 and A500 where I saw this.
> 
> Helge
> 
> [PATCH] parisc: Fix too large frame size warnings
> 
> The parisc architecture requires larger stack frames than most other
> architectures on 32-bit kernels.
> Increase the default to 1280 bytes for parisc to avoid warnings in
> do_sys_poll() and pat_memconfig() functions.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index b19c491cbc4e..2689b7c50c52 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -219,7 +219,8 @@ config FRAME_WARN
>  	range 0 8192
>  	default 0 if KASAN
>  	default 2048 if GCC_PLUGIN_LATENT_ENTROPY
> -	default 1024 if !64BIT
> +	default 1280 if (!64BIT && PARISC)
> +	default 1024 if (!64BIT && !PARISC)
>  	default 2048 if 64BIT
>  	help
>  	  Tell gcc to warn at build time for stack frames larger than this.
> 

-- 
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From: Thomas Gleixner <tglx@linutronix.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [patch V2 03/29] lockup_detector: Provide interface to stop from
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Cc: Ingo Molnar <mingo@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
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        Andrew Morton <akpm@linux-foundation.org>,
        Sebastian Siewior <bigeasy@linutronix.de>,
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PARISC has a a busy looping power off routine. If the watchdog is enabled
the watchdog timer will still fire, but the thread is not running, which
causes the softlockup watchdog to trigger.

Provide a interface which allows to turn the watchdog off.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: linux-parisc@vger.kernel.org
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Ulrich Obergfell <uobergfe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Helge Deller <deller@gmx.de>
Link: http://lkml.kernel.org/r/20170831073053.202164272@linutronix.de

---
 include/linux/nmi.h |    6 +++---
 kernel/watchdog.c   |   14 +++++++++++++-
 2 files changed, 16 insertions(+), 4 deletions(-)

--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -12,10 +12,10 @@
 
 #ifdef CONFIG_LOCKUP_DETECTOR
 void lockup_detector_init(void);
+void lockup_detector_soft_poweroff(void);
 #else
-static inline void lockup_detector_init(void)
-{
-}
+static inline void lockup_detector_init(void) { }
+static inline void lockup_detector_soft_poweroff(void) { }
 #endif
 
 #ifdef CONFIG_SOFTLOCKUP_DETECTOR
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -333,7 +333,8 @@ static enum hrtimer_restart watchdog_tim
 	int duration;
 	int softlockup_all_cpu_backtrace = sysctl_softlockup_all_cpu_backtrace;
 
-	if (atomic_read(&watchdog_park_in_progress) != 0)
+	if (!watchdog_enabled ||
+	    atomic_read(&watchdog_park_in_progress) != 0)
 		return HRTIMER_NORESTART;
 
 	/* kick the hardlockup detector */
@@ -660,6 +661,17 @@ static void set_sample_period(void)
 }
 #endif /* SOFTLOCKUP */
 
+/**
+ * lockup_detector_soft_poweroff - Interface to stop lockup detector(s)
+ *
+ * Special interface for parisc. It prevents lockup detector warnings from
+ * the default pm_poweroff() function which busy loops forever.
+ */
+void lockup_detector_soft_poweroff(void)
+{
+	watchdog_enabled = 0;
+}
+
 /*
  * Suspend the hard and soft lockup detector by parking the watchdog threads.
  */




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From: Thomas Gleixner <tglx@linutronix.de>
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Subject: [patch V2 04/29] parisc: Use lockup_detector_stop()
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        Andrew Morton <akpm@linux-foundation.org>,
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        Ulrich Obergfell <uobergfe@redhat.com>,
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The broken lockup_detector_suspend/resume() interface is going away. Use
the new lockup_detector_soft_poweroff() interface to stop the watchdog from
the busy looping power off routine.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: linux-parisc@vger.kernel.org
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Ulrich Obergfell <uobergfe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Helge Deller <deller@gmx.de>
Link: http://lkml.kernel.org/r/20170831073053.281414373@linutronix.de

---
 arch/parisc/kernel/process.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -146,7 +146,7 @@ void machine_power_off(void)
 
 	/* prevent soft lockup/stalled CPU messages for endless loop. */
 	rcu_sysrq_start();
-	lockup_detector_suspend();
+	lockup_detector_soft_poweroff();
 	for (;;);
 }
 




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On 11.09.2017 22:16, Meelis Roos wrote:
>> Meelis, this patch should fix both issues.
>> Can you test?
> 
> At least one of the warnings is still there - but I am on a 64-bit
> kernel on RP3440, RP3410 and A500 where I saw this.

Details?
The ones you sent were 32bit issues (with 1024 bytes frame-size-warning):
fs/select.c:991:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
arch/parisc/kernel/inventory.c:359:1: warning: the frame size of 1120 bytes is larger than 1024 bytes [-Wframe-larger-than=]

Helge


>>
>> Helge
>>
>> [PATCH] parisc: Fix too large frame size warnings
>>
>> The parisc architecture requires larger stack frames than most other
>> architectures on 32-bit kernels.
>> Increase the default to 1280 bytes for parisc to avoid warnings in
>> do_sys_poll() and pat_memconfig() functions.
>>
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
>> index b19c491cbc4e..2689b7c50c52 100644
>> --- a/lib/Kconfig.debug
>> +++ b/lib/Kconfig.debug
>> @@ -219,7 +219,8 @@ config FRAME_WARN
>>   	range 0 8192
>>   	default 0 if KASAN
>>   	default 2048 if GCC_PLUGIN_LATENT_ENTROPY
>> -	default 1024 if !64BIT
>> +	default 1280 if (!64BIT && PARISC)
>> +	default 1024 if (!64BIT && !PARISC)
>>   	default 2048 if 64BIT
>>   	help
>>   	  Tell gcc to warn at build time for stack frames larger than this.
>>
> 



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While looking for build lgos for my linke problem, I noticed two other 
warning on parisc-specific code. This is first of them:

  CC      arch/parisc/kernel/hardware.o
  CC      arch/parisc/kernel/inventory.o
arch/parisc/kernel/inventory.c: In function 'pat_memconfig':
arch/parisc/kernel/inventory.c:359:1: warning: the frame size of 1120 bytes is larger than 1024 bytes [-Wframe-larger-than=]


-- 
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> > hppa64-linux-ld: init/main.o(.text+0x22c): cannot reach
> > __ubsan_handle_type_mismatch
> > init/main.o: In function `initcall_blacklisted':(.text+0x22c): relocation
> > truncated to fit: R_PARISC_PCREL22F against symbol
> > `__ubsan_handle_type_mismatch' defined in .text.__ubsan_handle_type_mismatch
> > section in lib/ubsan.o
> > 
> > and so on for pages, more than my terminal scrollback provides.
> As far as gcc goes, you need to add -mlong-calls to avoid these errors.  I
> think there is a config option. The kernel is too big and some "b,l" branches
> can't reach their targets.

Thank you, yes, I found CONFIG_MLONGCALLS for that.

However, the next strange thing is why did custom kernels of multiple 
different machines grew so much (A500 UP and RP3440 SMP kernels)? My 
kernel configs are quite minimalistic anyway, except I include 
everything needed for booting (no dependenc on initramfs, so sd, scsi 
driver and ext4 are in). Perhaps a binary format or two, PDC stable 
storage and anothe IO schaduler too, and some kernel debugging options 
like UBSAN.

-- 
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        Chris Metcalf <cmetcalf@mellanox.com>,
        Ulrich Obergfell <uobergfe@redhat.com>,
        linux-parisc@vger.kernel.org, Helge Deller <deller@gmx.de>
To: Thomas Gleixner <tglx@linutronix.de>
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* Thomas Gleixner <tglx@linutronix.de>:
> The broken lockup_detector_suspend/resume() interface is going away. Use
> the new lockup_detector_soft_poweroff() interface to stop the watchdog from
> the busy looping power off routine.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Don Zickus <dzickus@redhat.com>
> Cc: Chris Metcalf <cmetcalf@mellanox.com>
> Cc: linux-parisc@vger.kernel.org
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Sebastian Siewior <bigeasy@linutronix.de>
> Cc: Nicholas Piggin <npiggin@gmail.com>
> Cc: Ulrich Obergfell <uobergfe@redhat.com>
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Helge Deller <deller@gmx.de>
> Link: http://lkml.kernel.org/r/20170831073053.281414373@linutronix.de
> 
> ---
>  arch/parisc/kernel/process.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- a/arch/parisc/kernel/process.c
> +++ b/arch/parisc/kernel/process.c
> @@ -146,7 +146,7 @@ void machine_power_off(void)
>  
>  	/* prevent soft lockup/stalled CPU messages for endless loop. */
>  	rcu_sysrq_start();
> -	lockup_detector_suspend();
> +	lockup_detector_soft_poweroff();
>  	for (;;);
>  }

Thomas, thanks for cleaning that up.  
You may add to patches 03/04:
Acked-by: Helge Deller <deller@gmx.de>


On a side-note, there is sadly no general function like
	turn_off_all_kind_of_runtime_hang_detectors()
which turns off *all* detectors at once (including soft lockup detector).
I've seen another detector complaing at runtime that we were hanging
here. I would need to dig up more info if you are interested...

Helge
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Subject: Re: [patch V2 04/29] parisc: Use lockup_detector_stop()
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On Thu, Sep 14, 2017 at 10:59:17AM +0200, Helge Deller wrote:
> * Thomas Gleixner <tglx@linutronix.de>:
> > The broken lockup_detector_suspend/resume() interface is going away. Use
> > the new lockup_detector_soft_poweroff() interface to stop the watchdog from
> > the busy looping power off routine.
> > 
> > Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> > Cc: Don Zickus <dzickus@redhat.com>
> > Cc: Chris Metcalf <cmetcalf@mellanox.com>
> > Cc: linux-parisc@vger.kernel.org
> > Cc: Peter Zijlstra <peterz@infradead.org>
> > Cc: Sebastian Siewior <bigeasy@linutronix.de>
> > Cc: Nicholas Piggin <npiggin@gmail.com>
> > Cc: Ulrich Obergfell <uobergfe@redhat.com>
> > Cc: Borislav Petkov <bp@alien8.de>
> > Cc: Andrew Morton <akpm@linux-foundation.org>
> > Cc: Helge Deller <deller@gmx.de>
> > Link: http://lkml.kernel.org/r/20170831073053.281414373@linutronix.de
> > 
> > ---
> >  arch/parisc/kernel/process.c |    2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > --- a/arch/parisc/kernel/process.c
> > +++ b/arch/parisc/kernel/process.c
> > @@ -146,7 +146,7 @@ void machine_power_off(void)
> >  
> >  	/* prevent soft lockup/stalled CPU messages for endless loop. */
> >  	rcu_sysrq_start();
> > -	lockup_detector_suspend();
> > +	lockup_detector_soft_poweroff();
> >  	for (;;);
> >  }
> 
> Thomas, thanks for cleaning that up.  
> You may add to patches 03/04:
> Acked-by: Helge Deller <deller@gmx.de>
> 
> 
> On a side-note, there is sadly no general function like
> 	turn_off_all_kind_of_runtime_hang_detectors()
> which turns off *all* detectors at once (including soft lockup detector).
> I've seen another detector complaing at runtime that we were hanging
> here. I would need to dig up more info if you are interested...

There are numerous detectors I have seen over the years: rcu, clocksource,
hard/soft, hang, fs, network, wq?, etc..  I am not sure it is easy to put
them all in one place or makes sense.

I know working with the kvm folks, when they swap back in, the real clock
can do a massive jump forward and causes a flood of warnings such that they
had to 'touch' all of them before running the vm again.

Cheers,
Don


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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCH 0/5] [RFC] printk/ia64/ppc64/parisc64: let's deprecate %pF/%pf printk specifiers
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	Hello

	RFC

	On some arches C function pointers are indirect and point to
a function descriptor, which contains the actual pointer to the code.
This mostly doesn't matter, except for cases when people want to print
out function pointers in symbolic format, because the usual '%pS/%ps'
does not work on those arches as expected. That's the reason why we
have '%pF/%pf', but since it's here because of a subtle ABI detail
specific to some arches (ppc64/ia64/parisc64) it's easy to misuse
'%pF/%pf' and '%pS/%ps' (see [1], for example).
	
	This patch set attempts to move ia64/ppc64/parisc64 C function
pointer ABI details out of printk() to arch code. Function dereference
code now checks if a pointer belongs to a .opd ELF section and dereferences
that pointer only if it does. The kernel and modules have their own .opd
sections that's why I use two different ARCH functions: for kernel and
for module pointer dereference.

	I planned to remove dereference_function_descriptor() entirely,
but then I discovered a bunch other uses cases (kgdbts, init/main.c,
extable, etc.), so I decided to keep dereference_function_descriptor()
around because the main point of this patch set is to deprecate %pF/%pf.
But at the same time, I think I can go further and handle both kernel
and module descriptor dereference in dereference_function_descriptor().
We need a module pointer for module .opd check, so that will come at an
extra cost of module lookup (may be there will some other issues along
the way, haven't checked it).

Right now we've got:

- dereference_function_descriptor(addr)
	a generic (old) function. it simply attempts to dereference
	whatever pointer we give it.

- dereference_kernel_function_descriptor(addr)
	dereferences a kernel pointer if it's within the kernel's .opd
	section.

- dereference_module_function_descriptor(module, addr)
	dereference a module pointer if it's within the module's .opd
	section.


*** A BIG NOTE ***
	I don't own ia64/ppc64/parisc64 hardware, so the patches are not
	tested. Sorry about that!


Another note:
	I need to check what is BPF symbol lookup and do we need to
	do any dereference there.


[1] https://marc.info/?l=linux-kernel&m=150472969730573

Sergey Senozhatsky (5):
  sections: split dereference_function_descriptor()
  ia64: Add .opd based function descriptor dereference
  powerpc64: Add .opd based function descriptor dereference
  parisc64: Add .opd based function descriptor dereference
  symbol lookup: use new kernel and module dereference functions

 Documentation/printk-formats.txt          | 15 +++++----------
 arch/ia64/include/asm/sections.h          | 14 +++++++++++++-
 arch/ia64/kernel/module.c                 | 13 +++++++++++++
 arch/ia64/kernel/vmlinux.lds.S            |  2 ++
 arch/parisc/boot/compressed/vmlinux.lds.S |  2 ++
 arch/parisc/include/asm/sections.h        |  3 +++
 arch/parisc/kernel/module.c               | 14 ++++++++++++++
 arch/parisc/kernel/process.c              | 10 ++++++++++
 arch/parisc/kernel/vmlinux.lds.S          |  2 ++
 arch/powerpc/include/asm/module.h         |  3 +++
 arch/powerpc/include/asm/sections.h       | 13 +++++++++++++
 arch/powerpc/kernel/module_64.c           | 16 ++++++++++++++++
 arch/powerpc/kernel/vmlinux.lds.S         |  2 ++
 include/asm-generic/sections.h            |  4 ++--
 include/linux/moduleloader.h              |  4 ++++
 kernel/kallsyms.c                         |  1 +
 kernel/module.c                           |  7 +++++++
 lib/vsprintf.c                            |  5 +----
 18 files changed, 113 insertions(+), 17 deletions(-)

-- 
2.14.1

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From - Thu Nov 08 21:40:20 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 1/5] sections: split dereference_function_descriptor()
Date: Sat, 16 Sep 2017 12:53:43 +0900
Lines: 108
Approved: news@gmane.org
Message-ID: <20170916035347.19705-2-sergey.senozhatsky@gmail.com>
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        Steven Rostedt <rostedt@goodmis.org>,
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To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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Xref: news.gmane.org gmane.linux.kernel:2571293 gmane.linux.ports.ia64:28107 gmane.linux.ports.parisc:27806 gmane.linux.ports.ppc64.devel:147944
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2571293>

There are two format specifiers to print out a pointer in symbolic
format: '%pS/%ps' and '%pF/%pf'. On most architectures, the two
mean exactly the same thing, but some architectures (ia64, ppc64,
parisc64) use an indirect pointer for C function pointers, where
the function pointer points to a function descriptor (which in
turn contains the actual pointer to the code). The '%pF/%pf, when
used appropriately, automatically does the appropriate function
descriptor dereference on such architectures.

The "when used appropriately" part is tricky. Basically this is
a subtle ABI detail, specific to some platforms, that made it to
the API level and people can be unaware of it and miss the whole
"we need to dereference the function" business out. [1] proves
that point (note that it fixes only '%pF' and '%pS', there might
be '%pf' and '%ps' cases as well).

It appears that we can handle everything within the affected
arches and make '%pS/%ps' smart enough to retire '%pF/%pf'.
Function descriptors live in .opd elf section and all affected
arches (ia64, ppc64, parisc64) handle it properly for kernel
and modules. So we, technically, can decide if the dereference
is needed by simply looking at the pointer: if it belongs to
.opd section then we need to dereference it.

The kernel and modules have their own .opd sections, obviously,
that's why we need to split dereference_function_descriptor()
and use separate kernel and module dereference arch callbacks.

This patch does the first step, it
a) adds dereference_kernel_function_descriptor() function.
b) adds a weak alias to dereference_module_function_descriptor()
   function.

So, for the time being, we will have:
1) dereference_function_descriptor()
   A generic function, that simply dereferences the pointer. There is
   bunch of places that call it: kgdbts, init/main.c, extable, etc.

2) dereference_kernel_function_descriptor()
   A function to call on kernel symbols that does kernel .opd section
   address range test.

3) dereference_module_function_descriptor()
   A function to call on modules' symbols that does modules' .opd
   section address range test.

[1] https://marc.info/?l=linux-kernel&m=150472969730573

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 include/asm-generic/sections.h | 4 ++--
 include/linux/moduleloader.h   | 4 ++++
 kernel/module.c                | 6 ++++++
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index e5da44eddd2f..21d2165e531a 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -49,10 +49,10 @@ extern char __ctors_start[], __ctors_end[];
 
 extern __visible const void __nosave_begin, __nosave_end;
 
-/* function descriptor handling (if any).  Override
- * in asm/sections.h */
+/* Function descriptor handling (if any).  Override in asm/sections.h */
 #ifndef dereference_function_descriptor
 #define dereference_function_descriptor(p) (p)
+#define dereference_kernel_function_descriptor(p) (p)
 #endif
 
 /* random extra sections (if any).  Override
diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index 4d0cb9bba93e..172904e9cded 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -85,6 +85,10 @@ void module_arch_cleanup(struct module *mod);
 /* Any cleanup before freeing mod->module_init */
 void module_arch_freeing_init(struct module *mod);
 
+/* Dereference module function descriptor */
+unsigned long dereference_module_function_descriptor(struct module *mod,
+						     unsigned long addr);
+
 #ifdef CONFIG_KASAN
 #include <linux/kasan.h>
 #define MODULE_ALIGN (PAGE_SIZE << KASAN_SHADOW_SCALE_SHIFT)
diff --git a/kernel/module.c b/kernel/module.c
index de66ec825992..87cdb46863cd 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2121,6 +2121,12 @@ void __weak module_arch_freeing_init(struct module *mod)
 {
 }
 
+unsigned long __weak dereference_module_function_descriptor(struct module *mod,
+							    unsigned long addr)
+{
+	return addr;
+}
+
 /* Free a module, remove from lists, etc. */
 static void free_module(struct module *mod)
 {
-- 
2.14.1



From - Thu Nov 08 21:40:21 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 2/5] ia64: Add .opd based function descriptor dereference
Date: Sat, 16 Sep 2017 12:53:44 +0900
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        Steven Rostedt <rostedt@goodmis.org>,
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        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
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        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
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To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2571294>

We are moving towards separate kernel and module function descriptor
dereference callbacks. This patch enables it for IA64.

For pointers that belong to the kernel
-  Added __start_opd and __end_opd pointers, to track the kernel
   .opd section address range;

-  Added dereference_kernel_function_descriptor(). Now we
   will dereference only function pointers that are within
   [__start_opd, __end_opd];

For pointers that belong to a module
-  Added dereference_module_function_descriptor() to handle module
   function descriptor dereference. Now we will dereference only
   pointers that are within [module->opd.start, module->opd.end].

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 arch/ia64/include/asm/sections.h | 14 +++++++++++++-
 arch/ia64/kernel/module.c        | 13 +++++++++++++
 arch/ia64/kernel/vmlinux.lds.S   |  2 ++
 3 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h
index 2ab2003698ef..bff3f3535609 100644
--- a/arch/ia64/include/asm/sections.h
+++ b/arch/ia64/include/asm/sections.h
@@ -25,8 +25,11 @@ extern char __start_gate_fsyscall_patchlist[], __end_gate_fsyscall_patchlist[];
 extern char __start_gate_brl_fsys_bubble_down_patchlist[], __end_gate_brl_fsys_bubble_down_patchlist[];
 extern char __start_unwind[], __end_unwind[];
 extern char __start_ivt_text[], __end_ivt_text[];
+extern char __start_opd[], __end_opd[];
 
 #undef dereference_function_descriptor
+#undef dereference_kernel_function_descriptor
+
 static inline void *dereference_function_descriptor(void *ptr)
 {
 	struct fdesc *desc = ptr;
@@ -37,6 +40,15 @@ static inline void *dereference_function_descriptor(void *ptr)
 	return ptr;
 }
 
+static inline void *dereference_kernel_function_descriptor(void *ptr)
+{
+	/*
+	 * Check if the ptr is a function descriptor and thus needs to
+	 * be dereferenced.
+	 */
+	if (ptr < (void *)__start_opd || (void *)__end_opd < ptr)
+		return ptr;
+	return dereference_function_descriptor(ptr);
+}
 
 #endif /* _ASM_IA64_SECTIONS_H */
-
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index d1d945c6bd05..d42f1e19d75d 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -35,6 +35,7 @@
 
 #include <asm/patch.h>
 #include <asm/unaligned.h>
+#include <asm/sections.h>
 
 #define ARCH_MODULE_DEBUG 0
 
@@ -917,3 +918,15 @@ module_arch_cleanup (struct module *mod)
 	if (mod->arch.core_unw_table)
 		unw_remove_unwind_table(mod->arch.core_unw_table);
 }
+
+unsigned long dereference_module_function_descriptor(struct module *mod,
+					     unsigned long addr)
+{
+	Elf64_Shdr *opd = mod->arch.opd;
+
+	if (addr < opd->sh_addr ||
+			(opd->sh_addr + opd->sh_size) < addr)
+		return addr;
+
+	return dereference_function_descriptor(addr);
+}
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 798026dde52e..f872ba5ff82a 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -107,7 +107,9 @@ SECTIONS {
 	RODATA
 
 	.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	}
 
 	/*
-- 
2.14.1



From - Thu Nov 08 21:40:21 2018
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X-Mozilla-Keys:                                                                                 
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCH 3/5] powerpc64: Add .opd based function descriptor dereference
Date: Sat, 16 Sep 2017 12:53:45 +0900
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Approved: news@gmane.org
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Cc: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
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        Helge Deller <deller@gmx.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/27808>

We are moving towards separate kernel and module function descriptor
dereference callbacks. This patch enables it for powerpc64.

For pointers that belong to the kernel
-  Added __start_opd and __end_opd pointers, to track the kernel
   .opd section address range;

-  Added dereference_kernel_function_descriptor(). Now we
   will dereference only function pointers that are within
   [__start_opd, __end_opd];

For pointers that belong to a module
-  Added dereference_module_function_descriptor() to handle module
   function descriptor dereference. Now we will dereference only
   pointers that are within [module->opd.start, module->opd.end].

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 arch/powerpc/include/asm/module.h   |  3 +++
 arch/powerpc/include/asm/sections.h | 13 +++++++++++++
 arch/powerpc/kernel/module_64.c     | 16 ++++++++++++++++
 arch/powerpc/kernel/vmlinux.lds.S   |  2 ++
 4 files changed, 34 insertions(+)

diff --git a/arch/powerpc/include/asm/module.h b/arch/powerpc/include/asm/module.h
index 6c0132c7212f..7e28442827f1 100644
--- a/arch/powerpc/include/asm/module.h
+++ b/arch/powerpc/include/asm/module.h
@@ -45,6 +45,9 @@ struct mod_arch_specific {
 	unsigned long tramp;
 #endif
 
+	/* For module function descriptor dereference */
+	unsigned long start_opd;
+	unsigned long end_opd;
 #else /* powerpc64 */
 	/* Indices of PLT sections within module. */
 	unsigned int core_plt_section;
diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
index 7902d6358854..7cc4db86952b 100644
--- a/arch/powerpc/include/asm/sections.h
+++ b/arch/powerpc/include/asm/sections.h
@@ -16,6 +16,9 @@ extern char __end_interrupts[];
 extern char __prom_init_toc_start[];
 extern char __prom_init_toc_end[];
 
+extern char __start_opd[];
+extern char __end_opd[];
+
 static inline int in_kernel_text(unsigned long addr)
 {
 	if (addr >= (unsigned long)_stext && addr < (unsigned long)__init_end)
@@ -66,6 +69,8 @@ static inline int overlaps_kvm_tmp(unsigned long start, unsigned long end)
 
 #ifdef PPC64_ELF_ABI_v1
 #undef dereference_function_descriptor
+#undef dereference_kernel_function_descriptor
+
 static inline void *dereference_function_descriptor(void *ptr)
 {
 	struct ppc64_opd_entry *desc = ptr;
@@ -75,6 +80,14 @@ static inline void *dereference_function_descriptor(void *ptr)
 		ptr = p;
 	return ptr;
 }
+
+static inline void *dereference_kernel_function_descriptor(void *ptr)
+{
+	if (ptr < (void *)__start_opd || (void *)__end_opd < ptr)
+		return ptr;
+
+	return dereference_function_descriptor(ptr);
+}
 #endif /* PPC64_ELF_ABI_v1 */
 
 #endif
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index 0b0f89685b67..52aa5d668364 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -344,6 +344,11 @@ int module_frob_arch_sections(Elf64_Ehdr *hdr,
 		else if (strcmp(secstrings+sechdrs[i].sh_name,"__versions")==0)
 			dedotify_versions((void *)hdr + sechdrs[i].sh_offset,
 					  sechdrs[i].sh_size);
+		else if (strcmp(secstrings + sechdrs[i].sh_name, ".opd")==0) {
+			me->arch.start_opd = sechdrs[i].sh_offset;
+			me->arch.end_opd = me->arch.start_opd +
+					sechdrs[i].sh_size;
+		}
 
 		/* We don't handle .init for the moment: rename to _init */
 		while ((p = strstr(secstrings + sechdrs[i].sh_name, ".init")))
@@ -712,6 +717,17 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 	return 0;
 }
 
+#ifdef PPC64_ELF_ABI_v1
+unsigned long dereference_module_function_descriptor(struct module *mod,
+						     unsigned long addr)
+{
+	if (addr < mod->arch.start_opd || mod->arch.end_opd < addr)
+		return addr;
+
+	return dereference_function_descriptor(addr);
+}
+#endif /* PPC64_ELF_ABI_v1 */
+
 #ifdef CONFIG_DYNAMIC_FTRACE
 
 #ifdef CC_USING_MPROFILE_KERNEL
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 882628fa6987..70e10251e083 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -277,7 +277,9 @@ SECTIONS
 	}
 
 	.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	}
 
 	. = ALIGN(256);
-- 
2.14.1

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From - Thu Nov 08 21:40:21 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 4/5] parisc64: Add .opd based function descriptor dereference
Date: Sat, 16 Sep 2017 12:53:46 +0900
Lines: 122
Approved: news@gmane.org
Message-ID: <20170916035347.19705-5-sergey.senozhatsky@gmail.com>
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Cc: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.kernel:2571296 gmane.linux.ports.ia64:28110 gmane.linux.ports.parisc:27809 gmane.linux.ports.ppc64.devel:147947
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2571296>

We are moving towards separate kernel and module function descriptor
dereference callbacks. This patch enables it for parisc64.

For pointers that belong to the kernel
-  Added __start_opd and __end_opd pointers, to track the kernel
   .opd section address range;

-  Added dereference_kernel_function_descriptor(). Now we
   will dereference only function pointers that are within
   [__start_opd, __end_opd];

For pointers that belong to a module
-  Added dereference_module_function_descriptor() to handle module
   function descriptor dereference. Now we will dereference only
   pointers that are within [module->opd.start, module->opd.end].

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 arch/parisc/boot/compressed/vmlinux.lds.S |  2 ++
 arch/parisc/include/asm/sections.h        |  3 +++
 arch/parisc/kernel/module.c               | 14 ++++++++++++++
 arch/parisc/kernel/process.c              | 10 ++++++++++
 arch/parisc/kernel/vmlinux.lds.S          |  2 ++
 5 files changed, 31 insertions(+)

diff --git a/arch/parisc/boot/compressed/vmlinux.lds.S b/arch/parisc/boot/compressed/vmlinux.lds.S
index a4ce3314e78e..4ebd4e65524c 100644
--- a/arch/parisc/boot/compressed/vmlinux.lds.S
+++ b/arch/parisc/boot/compressed/vmlinux.lds.S
@@ -29,7 +29,9 @@ SECTIONS
 	. = ALIGN(16);
 	/* Linkage tables */
 	.opd : {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	} PROVIDE (__gp = .);
 	.plt : {
 		*(.plt)
diff --git a/arch/parisc/include/asm/sections.h b/arch/parisc/include/asm/sections.h
index 9d13c3507ad6..e3cde650b2f9 100644
--- a/arch/parisc/include/asm/sections.h
+++ b/arch/parisc/include/asm/sections.h
@@ -6,7 +6,10 @@
 
 #ifdef CONFIG_64BIT
 #undef dereference_function_descriptor
+#undef dereference_kernel_function_descriptor
+
 void *dereference_function_descriptor(void *);
+void *dereference_kernel_function_descriptor(void *);
 #endif
 
 #endif
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index f1a76935a314..bc2eae8634fd 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -954,3 +954,17 @@ void module_arch_cleanup(struct module *mod)
 {
 	deregister_unwind_table(mod);
 }
+
+#ifdef CONFIG_64BIT
+unsigned long dereference_module_function_descriptor(struct module *mod,
+					     unsigned long addr)
+{
+	void *opd_sz = mod->arch.fdesc_offset +
+		       mod->arch.fdesc_max * sizeof(Elf64_Fdesc);
+
+	if (addr < mod->arch.fdesc_offset || opd_sz < addr)
+		return addr;
+
+	return dereference_function_descriptor(addr);
+}
+#endif
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 30f92391a93e..f30776bdaa79 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -267,6 +267,8 @@ get_wchan(struct task_struct *p)
 }
 
 #ifdef CONFIG_64BIT
+extern char __start_opd[], __end_opd[];
+
 void *dereference_function_descriptor(void *ptr)
 {
 	Elf64_Fdesc *desc = ptr;
@@ -276,6 +278,14 @@ void *dereference_function_descriptor(void *ptr)
 		ptr = p;
 	return ptr;
 }
+
+void *dereference_kernel_function_descriptor(void *ptr)
+{
+	if (ptr < (void *)__start_opd || (void *)__end_opd < ptr)
+		return ptr;
+
+	return dereference_function_descriptor(ptr);
+}
 #endif
 
 static inline unsigned long brk_rnd(void)
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index ffe2cbf52d1a..ab030895dd1e 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -99,7 +99,9 @@ SECTIONS
 	. = ALIGN(16);
 	/* Linkage tables */
 	.opd : {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	} PROVIDE (__gp = .);
 	.plt : {
 		*(.plt)
-- 
2.14.1



From - Thu Nov 08 21:40:21 2018
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X-Mozilla-Keys:                                                                                 
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH 5/5] symbol lookup: use new kernel and module dereference functions
Date: Sat, 16 Sep 2017 12:53:47 +0900
Lines: 116
Approved: news@gmane.org
Message-ID: <20170916035347.19705-6-sergey.senozhatsky@gmail.com>
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Cc: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2571297>

Call appropriate function descriptor dereference ARCH callbacks:
- dereference_kernel_function_descriptor() if the pointer is a
  kernel symbol;

- dereference_module_function_descriptor() if the pointer is a
  module symbol.

This patch also removes dereference_function_descriptor() from
'%pF/%pf' vsprintf handler, because it has the same behavior with
'%pS/%ps' now.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 Documentation/printk-formats.txt | 15 +++++----------
 kernel/kallsyms.c                |  1 +
 kernel/module.c                  |  1 +
 lib/vsprintf.c                   |  5 +----
 4 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 361789df51ec..b2afafc84638 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -50,26 +50,23 @@ Symbols/Function Pointers
 
 ::
 
+	%pS	versatile_init+0x0/0x110
+	%ps	versatile_init
 	%pF	versatile_init+0x0/0x110
 	%pf	versatile_init
-	%pS	versatile_init+0x0/0x110
 	%pSR	versatile_init+0x9/0x110
 		(with __builtin_extract_return_addr() translation)
-	%ps	versatile_init
 	%pB	prev_fn_of_versatile_init+0x88/0x88
 
-The ``F`` and ``f`` specifiers are for printing function pointers,
-for example, f->func, &gettimeofday. They have the same result as
-``S`` and ``s`` specifiers. But they do an extra conversion on
-ia64, ppc64 and parisc64 architectures where the function pointers
-are actually function descriptors.
-
 The ``S`` and ``s`` specifiers can be used for printing symbols
 from direct addresses, for example, __builtin_return_address(0),
 (void *)regs->ip. They result in the symbol name with (``S``) or
 without (``s``) offsets. If KALLSYMS are disabled then the symbol
 address is printed instead.
 
+Note, that the ``F`` and ``f`` specifiers are identical to ``S`` (``s``)
+and thus deprecated.
+
 The ``B`` specifier results in the symbol name with offsets and should be
 used when printing stack backtraces. The specifier takes into
 consideration the effect of compiler optimisations which may occur
@@ -77,8 +74,6 @@ when tail-call``s are used and marked with the noreturn GCC attribute.
 
 Examples::
 
-	printk("Going to call: %pF\n", gettimeofday);
-	printk("Going to call: %pF\n", p->func);
 	printk("%s: called from %pS\n", __func__, (void *)_RET_IP_);
 	printk("%s: called from %pS\n", __func__,
 				(void *)__builtin_return_address(0));
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 127e7cfafa55..e2fc09ea9509 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -322,6 +322,7 @@ const char *kallsyms_lookup(unsigned long addr,
 	if (is_ksym_addr(addr)) {
 		unsigned long pos;
 
+		addr = dereference_kernel_function_descriptor(addr);
 		pos = get_symbol_pos(addr, symbolsize, offset);
 		/* Grab name */
 		kallsyms_expand_symbol(get_symbol_offset(pos),
diff --git a/kernel/module.c b/kernel/module.c
index 87cdb46863cd..4f591f2bbf5a 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3948,6 +3948,7 @@ const char *module_address_lookup(unsigned long addr,
 	preempt_disable();
 	mod = __module_address(addr);
 	if (mod) {
+		addr = dereference_module_function_descriptor(mod, addr);
 		if (modname)
 			*modname = mod->name;
 		ret = get_ksymbol(mod, addr, size, offset);
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 86c3385b9eb3..bf04b4f5d8e7 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -40,7 +40,6 @@
 #include "../mm/internal.h"	/* For the trace_print_flags arrays */
 
 #include <asm/page.h>		/* for PAGE_SIZE */
-#include <asm/sections.h>	/* for dereference_function_descriptor() */
 #include <asm/byteorder.h>	/* cpu_to_le16 */
 
 #include <linux/string_helpers.h>
@@ -1721,10 +1720,8 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 	}
 
 	switch (*fmt) {
-	case 'F':
+	case 'F': /* %pF and %pf are kept for compatibility reasons only */
 	case 'f':
-		ptr = dereference_function_descriptor(ptr);
-		/* Fallthrough */
 	case 'S':
 	case 's':
 	case 'B':
-- 
2.14.1



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 dereference
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Xref: news.gmane.org gmane.linux.kernel:2571327 gmane.linux.ports.ia64:28112 gmane.linux.ports.parisc:27811 gmane.linux.ports.ppc64.devel:147949
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2571327>

On 2017/09/16 12:53PM, Sergey Senozhatsky wrote:
> We are moving towards separate kernel and module function descriptor
> dereference callbacks. This patch enables it for powerpc64.
> 
> For pointers that belong to the kernel
> -  Added __start_opd and __end_opd pointers, to track the kernel
>    .opd section address range;
> 
> -  Added dereference_kernel_function_descriptor(). Now we
>    will dereference only function pointers that are within
>    [__start_opd, __end_opd];
> 
> For pointers that belong to a module
> -  Added dereference_module_function_descriptor() to handle module
>    function descriptor dereference. Now we will dereference only
>    pointers that are within [module->opd.start, module->opd.end].

Would it be simpler to just use kernel_text_address() and dereference 
everything else? See commit 83e840c770f2c5 ("powerpc64/elfv1: Only 
dereference function descriptor for non-text symbols") for a related 
patch.

- Naveen



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 dereference
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On (09/16/17 15:13), Naveen N. Rao wrote:
[..]
> Would it be simpler to just use kernel_text_address() and dereference 
> everything else? See commit 83e840c770f2c5 ("powerpc64/elfv1: Only 
> dereference function descriptor for non-text symbols") for a related 
> patch.

I had this idea, see

lkml.kernel.org/r/20170908172528.qc2vdtxzqh777k6o@intel.com


	-ss
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Stop unwinding at start of stack
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Check stack pointer if we are reaching the stack end and stop unwinding
if we do. This fixes early backtraces and avoids showing unrealistic
call stacks.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 48dc7d4..caab39d 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -14,6 +14,7 @@
 #include <linux/slab.h>
 #include <linux/kallsyms.h>
 #include <linux/sort.h>
+#include <linux/sched.h>
 
 #include <linux/uaccess.h>
 #include <asm/assembly.h>
@@ -279,6 +280,17 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
 
 			info->prev_sp = sp - 64;
 			info->prev_ip = 0;
+
+			/* The stack is at the end inside the thread_union
+			 * struct. If we reach data, we have reached the
+			 * beginning of the stack and should stop unwinding. */
+			if (info->prev_sp >= (unsigned long) task_thread_info(info->t) &&
+			    info->prev_sp < ((unsigned long) task_thread_info(info->t)
+						+ THREAD_SZ_ALGN)) {
+				info->prev_sp = 0;
+				break;
+			}
+
 			if (get_user(tmp, (unsigned long *)(info->prev_sp - RP_OFFSET))) 
 				break;
 			info->prev_ip = tmp;
--
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Subject: [PATCH] parisc: Add wrapper for pdc_instr() firmware function
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 26b4455..510341f 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -280,6 +280,7 @@ void setup_pdc(void);		/* in inventory.c */
 /* wrapper-functions from pdc.c */
 
 int pdc_add_valid(unsigned long address);
+int pdc_instr(unsigned int *instr);
 int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len);
 int pdc_chassis_disp(unsigned long disp);
 int pdc_chassis_warn(unsigned long *warn);
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index ab80e5c..6d471c0 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -233,6 +233,26 @@ int pdc_add_valid(unsigned long address)
 EXPORT_SYMBOL(pdc_add_valid);
 
 /**
+ * pdc_instr - Get instruction that invokes PDCE_CHECK in HPMC handler.
+ * @instr: Pointer to variable which will get instruction opcode.
+ *
+ * The return value is PDC_OK (0) in case call succeeded.
+ */
+int __init pdc_instr(unsigned int *instr)
+{
+	int retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_INSTR, 0UL, __pa(pdc_result));
+	convert_to_wide(pdc_result);
+	*instr = pdc_result[0];
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
+
+/**
  * pdc_chassis_info - Return chassis information.
  * @result: The return buffer.
  * @chassis_info: The memory buffer address.
--
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index dee6f9d..a31e91c 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -38,6 +38,7 @@
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/sched/clock.h>
+#include <linux/start_kernel.h>
 
 #include <asm/processor.h>
 #include <asm/sections.h>
@@ -398,9 +399,8 @@ static int __init parisc_init(void)
 }
 arch_initcall(parisc_init);
 
-void start_parisc(void)
+void __init start_parisc(void)
 {
-	extern void start_kernel(void);
 	extern void early_trap_init(void);
 
 	int ret, cpunum;
--
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Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Add PDCE_CHECK instruction to HPMC handler
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According to the programming note at page 1-31 of the PA 1.1 Firmware
Architecture document, one should use the PDC_INSTR firmware function to
get the instruction that invokes a PDCE_CHECK in the HPMC handler.  This
patch follows this note and sets the instruction which has been a nop up
until now.
Testing on a C3000 and C8000 showed that this firmware call isn't
implemented on those machines, so maybe it's only needed on older ones.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 991654c..23033315 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -817,7 +817,7 @@ void __init initialize_ivt(const void *iva)
 	u32 check = 0;
 	u32 *ivap;
 	u32 *hpmcp;
-	u32 length;
+	u32 length, instr;
 
 	if (strcmp((const char *)iva, "cows can fly"))
 		panic("IVT invalid");
@@ -827,6 +827,14 @@ void __init initialize_ivt(const void *iva)
 	for (i = 0; i < 8; i++)
 	    *ivap++ = 0;
 
+	/*
+	 * Use PDC_INSTR firmware function to get instruction that invokes
+	 * PDCE_CHECK in HPMC handler.  See programming note at page 1-31 of
+	 * the PA 1.1 Firmware Architecture document.
+	 */
+	if (pdc_instr(&instr) == PDC_OK)
+		ivap[0] = instr;
+
 	/* Compute Checksum for HPMC handler */
 	length = os_hpmc_size;
 	ivap[7] = length;
--
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Check for broken memory in initrd
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While scanning the PDT for reported broken memory modules, check if the
initrd may have been loaded in such broken regions.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
index 05730a8..00aed08 100644
--- a/arch/parisc/kernel/pdt.c
+++ b/arch/parisc/kernel/pdt.c
@@ -15,6 +15,7 @@
 #include <linux/memblock.h>
 #include <linux/seq_file.h>
 #include <linux/kthread.h>
+#include <linux/initrd.h>
 
 #include <asm/pdc.h>
 #include <asm/pdcpat.h>
@@ -216,8 +217,16 @@ void __init pdc_pdt_init(void)
 	}
 
 	for (i = 0; i < pdt_status.pdt_entries; i++) {
+		unsigned long addr;
+
 		report_mem_err(pdt_entry[i]);
 
+		addr = pdt_entry[i] & PDT_ADDR_PHYS_MASK;
+		if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) &&
+			addr >= initrd_start && addr < initrd_end)
+			pr_crit("CRITICAL: initrd possibly broken "
+				"due to bad memory!\n");
+
 		/* mark memory page bad */
 		memblock_reserve(pdt_entry[i] & PAGE_MASK, PAGE_SIZE);
 	}
--
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From: Babu Moger <babu.moger@oracle.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.sparc,gmane.linux.ports.parisc
Subject: [PATCH 0/2] Fix duplicates and change default endian for microblaze
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This series fixes few Kconfig issues.

Babu Moger (2):
  arch: Fix duplicates in Kconfig for parisc and sparc
  arch: change default endian for microblaze

 arch/microblaze/Kconfig |    2 +-
 arch/parisc/Kconfig     |    3 ---
 arch/sparc/Kconfig      |    3 ---
 3 files changed, 1 insertions(+), 7 deletions(-)



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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.sparc,gmane.linux.ports.parisc
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Fix duplicates for sparc and parisc. This was due these following commits.

1. commit 4c97a0c8fee3 ("arch: define CPU_BIG_ENDIAN for all fixed big
   endian archs")
2. commit 97d9f969161d ("arch/sparc: Define config parameter
   CPU_BIG_ENDIAN")
3. commit 74ad3d28af21 ("parisc: Define CONFIG_CPU_BIG_ENDIAN")

Remove duplicates.

Signed-off-by: Babu Moger <babu.moger@oracle.com>
---
 arch/parisc/Kconfig |    3 ---
 arch/sparc/Kconfig  |    3 ---
 2 files changed, 0 insertions(+), 6 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index ba7b7dd..1364851 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -59,9 +59,6 @@ config PARISC
 config CPU_BIG_ENDIAN
 	def_bool y
 
-config CPU_BIG_ENDIAN
-	def_bool y
-
 config MMU
 	def_bool y
 
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 0be3828..a4a6261 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -97,9 +97,6 @@ config ARCH_PROC_KCORE_TEXT
 config CPU_BIG_ENDIAN
 	def_bool y
 
-config CPU_BIG_ENDIAN
-	def_bool y
-
 config ARCH_ATU
 	bool
 	default y if SPARC64
-- 
1.7.1



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X-Mozilla-Keys:                                                                                 
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From: Babu Moger <babu.moger@oracle.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.sparc,gmane.linux.ports.parisc
Subject: [PATCH 2/2] arch: change default endian for microblaze
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Fix the default for microblaze. Michal Simek mentioned default for
microblaze should be CPU_LITTLE_ENDIAN.

Fixes : commit 206d3642d8ee ("arch/microblaze: add choice for endianness
	and update Makefile")

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Cc: Michal Simek <monstr@monstr.eu>
---
 arch/microblaze/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 9d26abd..4f798aa 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -39,7 +39,7 @@ config MICROBLAZE
 # Endianness selection
 choice
 	prompt "Endianness selection"
-	default CPU_BIG_ENDIAN
+	default CPU_LITTLE_ENDIAN
 	help
 	  microblaze architectures can be configured for either little or
 	  big endian formats. Be sure to select the appropriate mode.
-- 
1.7.1



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Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCH 0/5] [RFC] printk/ia64/ppc64/parisc64: let's deprecate
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On Sat, Sep 16, 2017 at 12:53:42PM +0900, Sergey Senozhatsky wrote:
> 	Hello
> 
> 	RFC
> 
> 	On some arches C function pointers are indirect and point to
> a function descriptor, which contains the actual pointer to the code.
> This mostly doesn't matter, except for cases when people want to print
> out function pointers in symbolic format, because the usual '%pS/%ps'
> does not work on those arches as expected. That's the reason why we
> have '%pF/%pf', but since it's here because of a subtle ABI detail
> specific to some arches (ppc64/ia64/parisc64) it's easy to misuse
> '%pF/%pf' and '%pS/%ps' (see [1], for example).

A few new warnings when building on ia64:

arch/ia64/kernel/module.c:931: warning: passing argument 1 of 'dereference_function_descriptor' makes pointer from integer without a cast
arch/ia64/kernel/module.c:931: warning: return makes integer from pointer without a cast
kernel/kallsyms.c:325: warning: assignment makes integer from pointer without a cast
kernel/kallsyms.c:325: warning: passing argument 1 of 'dereference_kernel_function_descriptor' makes pointer from integer without a cast

Tried out the module case with a simple Hello-world test case.
This code:

char buf[1];

int init_module(void)
{
	printk(KERN_INFO "Hello world 1.\n");

	printk("using %%p  my init_module is at %p\n", init_module);
	printk("using %%pF my init_module is at %pF\n", init_module);
	printk("using %%pS my init_module is at %pS\n", init_module);

	printk("using %%p  my buf is at %p\n", buf);
	printk("using %%pF my buf is at %pF\n", buf);
	printk("using %%pS my buf is at %pS\n", buf);

	return 0;
}

Gave this console output:

Hello world 1.
using %p  my init_module is at a000000203bf0328
using %pF my init_module is at init_module+0x0/0x140 [hello_1]
using %pS my init_module is at init_module+0x0/0x140 [hello_1]
using %p  my buf is at a000000203bf0648
using %pF my buf is at buf+0x0/0xfffffffffffffb58 [hello_1]
using %pS my buf is at buf+0x0/0xfffffffffffffb58 [hello_1]


Which looks like what you wanted. People unaware of the vagaries
of ppc64/ia64/parisc64 can use the wrong %p[SF] variant, but still
get the right output.

-Tony
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From: Michal Simek <monstr@monstr.eu>
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Subject: Re: [PATCH 2/2] arch: change default endian for microblaze
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 <1505753609-602923-3-git-send-email-babu.moger@oracle.com>
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On 18.9.2017 18:53, Babu Moger wrote:
> Fix the default for microblaze. Michal Simek mentioned default for
> microblaze should be CPU_LITTLE_ENDIAN.
>=20
> Fixes : commit 206d3642d8ee ("arch/microblaze: add choice for endiannes=
s
> 	and update Makefile")
>=20
> Signed-off-by: Babu Moger <babu.moger@oracle.com>
> Cc: Michal Simek <monstr@monstr.eu>
> ---
>  arch/microblaze/Kconfig |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>=20
> diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
> index 9d26abd..4f798aa 100644
> --- a/arch/microblaze/Kconfig
> +++ b/arch/microblaze/Kconfig
> @@ -39,7 +39,7 @@ config MICROBLAZE
>  # Endianness selection
>  choice
>  	prompt "Endianness selection"
> -	default CPU_BIG_ENDIAN
> +	default CPU_LITTLE_ENDIAN
>  	help
>  	  microblaze architectures can be configured for either little or
>  	  big endian formats. Be sure to select the appropriate mode.
>=20

Acked-by: Michal Simek <michal.simek@xilinx.com>

If you want me to take this through my microblaze tree please let me know=
=2E

Thanks,
Michal

--=20
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP SoCs



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On 9/18/2017 12:49 PM, Michal Simek wrote:
> On 18.9.2017 18:53, Babu Moger wrote:
>> Fix the default for microblaze. Michal Simek mentioned default for
>> microblaze should be CPU_LITTLE_ENDIAN.
>>
>> Fixes : commit 206d3642d8ee ("arch/microblaze: add choice for endianness
>> 	and update Makefile")
>>
>> Signed-off-by: Babu Moger <babu.moger@oracle.com>
>> Cc: Michal Simek <monstr@monstr.eu>
>> ---
>>   arch/microblaze/Kconfig |    2 +-
>>   1 files changed, 1 insertions(+), 1 deletions(-)
>>
>> diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
>> index 9d26abd..4f798aa 100644
>> --- a/arch/microblaze/Kconfig
>> +++ b/arch/microblaze/Kconfig
>> @@ -39,7 +39,7 @@ config MICROBLAZE
>>   # Endianness selection
>>   choice
>>   	prompt "Endianness selection"
>> -	default CPU_BIG_ENDIAN
>> +	default CPU_LITTLE_ENDIAN
>>   	help
>>   	  microblaze architectures can be configured for either little or
>>   	  big endian formats. Be sure to select the appropriate mode.
>>
> Acked-by: Michal Simek <michal.simek@xilinx.com>
Thanks.
> If you want me to take this through my microblaze tree please let me know.
Sure. Thanks
>
> Thanks,
> Michal
>

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Subject: Re: [PATCH 0/5] [RFC] printk/ia64/ppc64/parisc64: let's deprecate
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To: "Luck, Tony" <tony.luck@intel.com>
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On (09/18/17 10:44), Luck, Tony wrote:
[..]
> 
> A few new warnings when building on ia64:
> 
> arch/ia64/kernel/module.c:931: warning: passing argument 1 of 'dereference_function_descriptor' makes pointer from integer without a cast
> arch/ia64/kernel/module.c:931: warning: return makes integer from pointer without a cast
> kernel/kallsyms.c:325: warning: assignment makes integer from pointer without a cast
> kernel/kallsyms.c:325: warning: passing argument 1 of 'dereference_kernel_function_descriptor' makes pointer from integer without a cast

got it, will address in v2.

[..]
> Which looks like what you wanted. People unaware of the vagaries
> of ppc64/ia64/parisc64 can use the wrong %p[SF] variant, but still
> get the right output.

thanks!

	-ss
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To: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>,
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"Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com> writes:

> On 2017/09/16 12:53PM, Sergey Senozhatsky wrote:
>> We are moving towards separate kernel and module function descriptor
>> dereference callbacks. This patch enables it for powerpc64.
>> 
>> For pointers that belong to the kernel
>> -  Added __start_opd and __end_opd pointers, to track the kernel
>>    .opd section address range;
>> 
>> -  Added dereference_kernel_function_descriptor(). Now we
>>    will dereference only function pointers that are within
>>    [__start_opd, __end_opd];
>> 
>> For pointers that belong to a module
>> -  Added dereference_module_function_descriptor() to handle module
>>    function descriptor dereference. Now we will dereference only
>>    pointers that are within [module->opd.start, module->opd.end].
>
> Would it be simpler to just use kernel_text_address() and dereference 
> everything else? See commit 83e840c770f2c5 ("powerpc64/elfv1: Only 
> dereference function descriptor for non-text symbols") for a related 
> patch.

Yeah that would be a lot simpler and probably work perfectly well.

cheers
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On (09/19/17 20:22), Michael Ellerman wrote:
> > On 2017/09/16 12:53PM, Sergey Senozhatsky wrote:
> >> We are moving towards separate kernel and module function descriptor
> >> dereference callbacks. This patch enables it for powerpc64.
> >> 
> >> For pointers that belong to the kernel
> >> -  Added __start_opd and __end_opd pointers, to track the kernel
> >>    .opd section address range;
> >> 
> >> -  Added dereference_kernel_function_descriptor(). Now we
> >>    will dereference only function pointers that are within
> >>    [__start_opd, __end_opd];
> >> 
> >> For pointers that belong to a module
> >> -  Added dereference_module_function_descriptor() to handle module
> >>    function descriptor dereference. Now we will dereference only
> >>    pointers that are within [module->opd.start, module->opd.end].
> >
> > Would it be simpler to just use kernel_text_address() and dereference 
> > everything else? See commit 83e840c770f2c5 ("powerpc64/elfv1: Only 
> > dereference function descriptor for non-text symbols") for a related 
> > patch.
> 
> Yeah that would be a lot simpler and probably work perfectly well.

unlike ppc_function_entry(), printk() can get called on any symbol,
not just function pointers.

for example,

cat /proc/kallsyms | grep shrinker_rwsem
ffffffff81a4b1e0 d shrinker_rwsem

or

cat /proc/kallsyms | grep vm_total_pages
ffffffff81dcd418 B vm_total_pages


and so on.

	-ss


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Subject: Re: [PATCH 3/5] powerpc64: Add .opd based function descriptor dereference
Date: Wed, 20 Sep 2017 11:51:49 +1000
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References: <20170916035347.19705-1-sergey.senozhatsky@gmail.com> <20170916035347.19705-4-sergey.senozhatsky@gmail.com> <20170916094345.d332z3odceqiyrll@naverao1-tp.localdomain> <87shfjkmxe.fsf@concordia.ellerman.id.au> <20170919103154.GC401@jagdpanzerIV.localdomain>
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To: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
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Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> writes:

> On (09/19/17 20:22), Michael Ellerman wrote:
>> > On 2017/09/16 12:53PM, Sergey Senozhatsky wrote:
>> >> We are moving towards separate kernel and module function descriptor
>> >> dereference callbacks. This patch enables it for powerpc64.
>> >> 
>> >> For pointers that belong to the kernel
>> >> -  Added __start_opd and __end_opd pointers, to track the kernel
>> >>    .opd section address range;
>> >> 
>> >> -  Added dereference_kernel_function_descriptor(). Now we
>> >>    will dereference only function pointers that are within
>> >>    [__start_opd, __end_opd];
>> >> 
>> >> For pointers that belong to a module
>> >> -  Added dereference_module_function_descriptor() to handle module
>> >>    function descriptor dereference. Now we will dereference only
>> >>    pointers that are within [module->opd.start, module->opd.end].
>> >
>> > Would it be simpler to just use kernel_text_address() and dereference 
>> > everything else? See commit 83e840c770f2c5 ("powerpc64/elfv1: Only 
>> > dereference function descriptor for non-text symbols") for a related 
>> > patch.
>> 
>> Yeah that would be a lot simpler and probably work perfectly well.
>
> unlike ppc_function_entry(), printk() can get called on any symbol,
> not just function pointers.
>
> for example,
>
> cat /proc/kallsyms | grep shrinker_rwsem
> ffffffff81a4b1e0 d shrinker_rwsem

Yep, good point. So your patch is probably good then. Maybe someone
other than me can find time to test it ;)

cheers
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Subject: Re: [PATCH 3/5] powerpc64: Add .opd based function descriptor
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Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
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On (09/20/17 11:51), Michael Ellerman wrote:
[..]
> > unlike ppc_function_entry(), printk() can get called on any symbol,
> > not just function pointers.
> >
> > for example,
> >
> > cat /proc/kallsyms | grep shrinker_rwsem
> > ffffffff81a4b1e0 d shrinker_rwsem
> 
> Yep, good point. So your patch is probably good then. Maybe someone
> other than me can find time to test it ;)

Hi,

I'll re-spin the series today/tomorrow.

	-ss
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/27829>

        Hello

        RFC

        On some arches C function pointers are indirect and point to
a function descriptor, which contains the actual pointer to the code.
This mostly doesn't matter, except for cases when people want to print
out function pointers in symbolic format, because the usual '%pS/%ps'
does not work on those arches as expected. That's the reason why we
have '%pF/%pf', but since it's here because of a subtle ABI detail
specific to some arches (ppc64/ia64/parisc64) it's easy to misuse
'%pF/%pf' and '%pS/%ps' (see [1], for example).

        This patch set attempts to move ia64/ppc64/parisc64 C function
pointer ABI details out of printk() to arch code. Function dereference
code now checks if a pointer belongs to a .opd ELF section and dereferences
that pointer only if it does. The kernel and modules have their own .opd
sections that's why I use two different ARCH functions: for kernel and
for module pointer dereference.

        I planned to remove dereference_function_descriptor() entirely,
but then I discovered a bunch other uses cases (kgdbts, init/main.c,
extable, etc.), so I decided to keep dereference_function_descriptor()
around because the main point of this patch set is to deprecate %pF/%pf.
But at the same time, I think I can go further and handle both kernel
and module descriptor dereference in dereference_function_descriptor().
We need a module pointer for module .opd check, so that will come at an
extra cost of module lookup (may be there will some other issues along
the way, haven't checked it).

Right now we've got:

- dereference_function_descriptor(addr)
        a generic (old) function. it simply attempts to dereference
        whatever pointer we give it.

- dereference_kernel_function_descriptor(addr)
        dereferences a kernel pointer if it's within the kernel's .opd
        section.

- dereference_module_function_descriptor(module, addr)
        dereference a module pointer if it's within the module's .opd
        section.


*** A BIG NOTE ***
        I don't own ia64/ppc64/parisc64 hardware, so the patches are not
        tested. Sorry about that!

Another note:
        I need to check what is BPF symbol lookup and do we need to
        do any dereference there.

v2:
-- convert dereference_function_descriptor() to unsigned long
-- fix kernel descriptor range checks (Helge)
-- fix parisc module descriptor range check (Helge)
-- fix ppc64 module range check
-- add checkpatch patch


Sergey Senozhatsky (7):
  switch dereference_function_descriptor() to `unsigned long'
  sections: split dereference_function_descriptor()
  ia64: Add .opd based function descriptor dereference
  powerpc64: Add .opd based function descriptor dereference
  parisc64: Add .opd based function descriptor dereference
  symbol lookup: use new kernel and module dereference functions
  checkpatch: add pF/pf deprecation warning

 Documentation/printk-formats.txt          | 15 +++++----------
 arch/ia64/include/asm/sections.h          | 16 ++++++++++++----
 arch/ia64/kernel/module.c                 | 13 +++++++++++++
 arch/ia64/kernel/vmlinux.lds.S            |  2 ++
 arch/parisc/boot/compressed/vmlinux.lds.S |  2 ++
 arch/parisc/include/asm/sections.h        |  4 +++-
 arch/parisc/kernel/module.c               | 17 +++++++++++++++++
 arch/parisc/kernel/process.c              | 15 ++++++++++++---
 arch/parisc/kernel/vmlinux.lds.S          |  2 ++
 arch/parisc/mm/init.c                     |  4 ++--
 arch/powerpc/include/asm/module.h         |  3 +++
 arch/powerpc/include/asm/sections.h       | 17 ++++++++++++++---
 arch/powerpc/kernel/module_64.c           | 16 ++++++++++++++++
 arch/powerpc/kernel/vmlinux.lds.S         |  2 ++
 drivers/misc/kgdbts.c                     |  2 +-
 include/asm-generic/sections.h            |  8 ++++++--
 include/linux/moduleloader.h              |  4 ++++
 init/main.c                               |  2 +-
 kernel/extable.c                          |  2 +-
 kernel/kallsyms.c                         |  1 +
 kernel/module.c                           |  9 ++++++++-
 lib/vsprintf.c                            |  5 +----
 scripts/checkpatch.pl                     |  6 ++++--
 23 files changed, 132 insertions(+), 35 deletions(-)

-- 
2.14.1

--
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From - Thu Nov 08 21:40:22 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [RFC][PATCH v2 2/7] sections: split dereference_function_descriptor()
Date: Thu, 21 Sep 2017 01:29:04 +0900
Lines: 121
Approved: news@gmane.org
Message-ID: <20170920162910.32053-3-sergey.senozhatsky@gmail.com>
References: <20170920162910.32053-1-sergey.senozhatsky@gmail.com>
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Cc: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        James Bottomley <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2574174>

There are two format specifiers to print out a pointer in symbolic
format: '%pS/%ps' and '%pF/%pf'. On most architectures, the two
mean exactly the same thing, but some architectures (ia64, ppc64,
parisc64) use an indirect pointer for C function pointers, where
the function pointer points to a function descriptor (which in
turn contains the actual pointer to the code). The '%pF/%pf, when
used appropriately, automatically does the appropriate function
descriptor dereference on such architectures.

The "when used appropriately" part is tricky. Basically this is
a subtle ABI detail, specific to some platforms, that made it to
the API level and people can be unaware of it and miss the whole
"we need to dereference the function" business out. [1] proves
that point (note that it fixes only '%pF' and '%pS', there might
be '%pf' and '%ps' cases as well).

It appears that we can handle everything within the affected
arches and make '%pS/%ps' smart enough to retire '%pF/%pf'.
Function descriptors live in .opd elf section and all affected
arches (ia64, ppc64, parisc64) handle it properly for kernel
and modules. So we, technically, can decide if the dereference
is needed by simply looking at the pointer: if it belongs to
.opd section then we need to dereference it.

The kernel and modules have their own .opd sections, obviously,
that's why we need to split dereference_function_descriptor()
and use separate kernel and module dereference arch callbacks.

This patch does the first step, it
a) adds dereference_kernel_function_descriptor() function.
b) adds a weak alias to dereference_module_function_descriptor()
   function.

So, for the time being, we will have:
1) dereference_function_descriptor()
   A generic function, that simply dereferences the pointer. There is
   bunch of places that call it: kgdbts, init/main.c, extable, etc.

2) dereference_kernel_function_descriptor()
   A function to call on kernel symbols that does kernel .opd section
   address range test.

3) dereference_module_function_descriptor()
   A function to call on modules' symbols that does modules' .opd
   section address range test.

[1] https://marc.info/?l=linux-kernel&m=150472969730573

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 include/asm-generic/sections.h | 8 ++++++--
 include/linux/moduleloader.h   | 4 ++++
 kernel/module.c                | 6 ++++++
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index e5da44eddd2f..387f22c41e0d 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -29,6 +29,7 @@
  *	__ctors_start, __ctors_end
  *	__irqentry_text_start, __irqentry_text_end
  *	__softirqentry_text_start, __softirqentry_text_end
+ *	__start_opd, __end_opd
  */
 extern char _text[], _stext[], _etext[];
 extern char _data[], _sdata[], _edata[];
@@ -47,12 +48,15 @@ extern char __softirqentry_text_start[], __softirqentry_text_end[];
 /* Start and end of .ctors section - used for constructor calls. */
 extern char __ctors_start[], __ctors_end[];
 
+/* Start and end of .opd section - used for function descriptors. */
+extern char __start_opd[], __end_opd[];
+
 extern __visible const void __nosave_begin, __nosave_end;
 
-/* function descriptor handling (if any).  Override
- * in asm/sections.h */
+/* Function descriptor handling (if any).  Override in asm/sections.h */
 #ifndef dereference_function_descriptor
 #define dereference_function_descriptor(p) (p)
+#define dereference_kernel_function_descriptor(p) (p)
 #endif
 
 /* random extra sections (if any).  Override
diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index 4d0cb9bba93e..172904e9cded 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -85,6 +85,10 @@ void module_arch_cleanup(struct module *mod);
 /* Any cleanup before freeing mod->module_init */
 void module_arch_freeing_init(struct module *mod);
 
+/* Dereference module function descriptor */
+unsigned long dereference_module_function_descriptor(struct module *mod,
+						     unsigned long addr);
+
 #ifdef CONFIG_KASAN
 #include <linux/kasan.h>
 #define MODULE_ALIGN (PAGE_SIZE << KASAN_SHADOW_SCALE_SHIFT)
diff --git a/kernel/module.c b/kernel/module.c
index ea77ab13bead..b792e814150a 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2121,6 +2121,12 @@ void __weak module_arch_freeing_init(struct module *mod)
 {
 }
 
+unsigned long __weak dereference_module_function_descriptor(struct module *mod,
+							    unsigned long addr)
+{
+	return addr;
+}
+
 /* Free a module, remove from lists, etc. */
 static void free_module(struct module *mod)
 {
-- 
2.14.1



From - Thu Nov 08 21:40:22 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [RFC][PATCH v2 3/7] ia64: Add .opd based function descriptor dereference
Date: Thu, 21 Sep 2017 01:29:05 +0900
Lines: 89
Approved: news@gmane.org
Message-ID: <20170920162910.32053-4-sergey.senozhatsky@gmail.com>
References: <20170920162910.32053-1-sergey.senozhatsky@gmail.com>
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Cc: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
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        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
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To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
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We are moving towards separate kernel and module function descriptor
dereference callbacks. This patch enables it for IA64.

For pointers that belong to the kernel
-  Added __start_opd and __end_opd pointers, to track the kernel
   .opd section address range;

-  Added dereference_kernel_function_descriptor(). Now we
   will dereference only function pointers that are within
   [__start_opd, __end_opd];

For pointers that belong to a module
-  Added dereference_module_function_descriptor() to handle module
   function descriptor dereference. Now we will dereference only
   pointers that are within [module->opd.start, module->opd.end].

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 arch/ia64/include/asm/sections.h | 10 +++++++++-
 arch/ia64/kernel/module.c        | 13 +++++++++++++
 arch/ia64/kernel/vmlinux.lds.S   |  2 ++
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h
index de6bfa1ef8fb..3ba7ce9d8bc8 100644
--- a/arch/ia64/include/asm/sections.h
+++ b/arch/ia64/include/asm/sections.h
@@ -37,6 +37,14 @@ static inline unsigned long dereference_function_descriptor(unsigned long ptr)
 	return ptr;
 }
 
+#undef dereference_kernel_function_descriptor
+static inline unsigned long
+dereference_kernel_function_descriptor(unsigned long addr)
+{
+	if (addr < (unsigned long)__start_opd ||
+			addr >= (unsigned long)__end_opd)
+		return addr;
+	return dereference_function_descriptor(addr);
+}
 
 #endif /* _ASM_IA64_SECTIONS_H */
-
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index d1d945c6bd05..0741ae6fa957 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -35,6 +35,7 @@
 
 #include <asm/patch.h>
 #include <asm/unaligned.h>
+#include <asm/sections.h>
 
 #define ARCH_MODULE_DEBUG 0
 
@@ -917,3 +918,15 @@ module_arch_cleanup (struct module *mod)
 	if (mod->arch.core_unw_table)
 		unw_remove_unwind_table(mod->arch.core_unw_table);
 }
+
+unsigned long
+dereference_module_function_descriptor(struct module *mod, unsigned long addr)
+{
+	Elf64_Shdr *opd = mod->arch.opd;
+
+	if (addr < opd->sh_addr ||
+			addr >= (opd->sh_addr + opd->sh_size))
+		return addr;
+
+	return dereference_function_descriptor(addr);
+}
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 798026dde52e..f872ba5ff82a 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -107,7 +107,9 @@ SECTIONS {
 	RODATA
 
 	.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	}
 
 	/*
-- 
2.14.1



From - Thu Nov 08 21:40:22 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [RFC][PATCH v2 5/7] parisc64: Add .opd based function descriptor dereference
Date: Thu, 21 Sep 2017 01:29:07 +0900
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Approved: news@gmane.org
Message-ID: <20170920162910.32053-6-sergey.senozhatsky@gmail.com>
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Cc: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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Xref: news.gmane.org gmane.linux.kernel:2574176 gmane.linux.ports.ia64:28133 gmane.linux.ports.parisc:27832 gmane.linux.ports.ppc64.devel:148123
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2574176>

We are moving towards separate kernel and module function descriptor
dereference callbacks. This patch enables it for parisc64.

For pointers that belong to the kernel
-  Added __start_opd and __end_opd pointers, to track the kernel
   .opd section address range;

-  Added dereference_kernel_function_descriptor(). Now we
   will dereference only function pointers that are within
   [__start_opd, __end_opd];

For pointers that belong to a module
-  Added dereference_module_function_descriptor() to handle module
   function descriptor dereference. Now we will dereference only
   pointers that are within [module->opd.start, module->opd.end].

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/boot/compressed/vmlinux.lds.S |  2 ++
 arch/parisc/include/asm/sections.h        |  2 ++
 arch/parisc/kernel/module.c               | 17 +++++++++++++++++
 arch/parisc/kernel/process.c              |  9 +++++++++
 arch/parisc/kernel/vmlinux.lds.S          |  2 ++
 5 files changed, 32 insertions(+)

diff --git a/arch/parisc/boot/compressed/vmlinux.lds.S b/arch/parisc/boot/compressed/vmlinux.lds.S
index a4ce3314e78e..4ebd4e65524c 100644
--- a/arch/parisc/boot/compressed/vmlinux.lds.S
+++ b/arch/parisc/boot/compressed/vmlinux.lds.S
@@ -29,7 +29,9 @@ SECTIONS
 	. = ALIGN(16);
 	/* Linkage tables */
 	.opd : {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	} PROVIDE (__gp = .);
 	.plt : {
 		*(.plt)
diff --git a/arch/parisc/include/asm/sections.h b/arch/parisc/include/asm/sections.h
index 59fbe0067112..845ddc9a3421 100644
--- a/arch/parisc/include/asm/sections.h
+++ b/arch/parisc/include/asm/sections.h
@@ -7,6 +7,8 @@
 #ifdef CONFIG_64BIT
 #undef dereference_function_descriptor
 unsigned long dereference_function_descriptor(unsigned long);
+#undef dereference_kernel_function_descriptor
+unsigned long dereference_kernel_function_descriptor(unsigned long);
 #endif
 
 #endif
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index f1a76935a314..28f89b3dcc11 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -66,6 +66,7 @@
 
 #include <asm/pgtable.h>
 #include <asm/unwind.h>
+#include <asm/sections.h>
 
 #if 0
 #define DEBUGP printk
@@ -954,3 +955,19 @@ void module_arch_cleanup(struct module *mod)
 {
 	deregister_unwind_table(mod);
 }
+
+#ifdef CONFIG_64BIT
+unsigned long dereference_module_function_descriptor(struct module *mod,
+						     unsigned long addr)
+{
+	unsigned long start_opd = (Elf64_Addr)mod->core_layout.base +
+				   mod->arch.fdesc_offset;
+	unsigned long end_opd = start_opd +
+				mod->arch.fdesc_count * sizeof(Elf64_Fdesc);
+
+	if (addr < start_opd || addr >= end_opd)
+		return addr;
+
+	return dereference_function_descriptor(addr);
+}
+#endif
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index f00a5f93492a..ff13726b2d2d 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -276,6 +276,15 @@ unsigned long dereference_function_descriptor(unsigned long ptr)
 		ptr = (unsigned long)p;
 	return ptr;
 }
+
+unsigned long dereference_kernel_function_descriptor(unsigned long addr)
+{
+	if (addr < (unsigned long)__start_opd ||
+			addr >= (unsigned long)__end_opd)
+		return addr;
+
+	return dereference_function_descriptor(addr);
+}
 #endif
 
 static inline unsigned long brk_rnd(void)
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index ffe2cbf52d1a..ab030895dd1e 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -99,7 +99,9 @@ SECTIONS
 	. = ALIGN(16);
 	/* Linkage tables */
 	.opd : {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	} PROVIDE (__gp = .);
 	.plt : {
 		*(.plt)
-- 
2.14.1



From - Thu Nov 08 21:40:22 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [RFC][PATCH v2 6/7] symbol lookup: use new kernel and module dereference functions
Date: Thu, 21 Sep 2017 01:29:08 +0900
Lines: 116
Approved: news@gmane.org
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Cc: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2574177>

Call appropriate function descriptor dereference ARCH callbacks:
- dereference_kernel_function_descriptor() if the pointer is a
  kernel symbol;

- dereference_module_function_descriptor() if the pointer is a
  module symbol.

This patch also removes dereference_function_descriptor() from
'%pF/%pf' vsprintf handler, because it has the same behavior with
'%pS/%ps' now.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 Documentation/printk-formats.txt | 15 +++++----------
 kernel/kallsyms.c                |  1 +
 kernel/module.c                  |  1 +
 lib/vsprintf.c                   |  5 +----
 4 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 361789df51ec..b2afafc84638 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -50,26 +50,23 @@ Symbols/Function Pointers
 
 ::
 
+	%pS	versatile_init+0x0/0x110
+	%ps	versatile_init
 	%pF	versatile_init+0x0/0x110
 	%pf	versatile_init
-	%pS	versatile_init+0x0/0x110
 	%pSR	versatile_init+0x9/0x110
 		(with __builtin_extract_return_addr() translation)
-	%ps	versatile_init
 	%pB	prev_fn_of_versatile_init+0x88/0x88
 
-The ``F`` and ``f`` specifiers are for printing function pointers,
-for example, f->func, &gettimeofday. They have the same result as
-``S`` and ``s`` specifiers. But they do an extra conversion on
-ia64, ppc64 and parisc64 architectures where the function pointers
-are actually function descriptors.
-
 The ``S`` and ``s`` specifiers can be used for printing symbols
 from direct addresses, for example, __builtin_return_address(0),
 (void *)regs->ip. They result in the symbol name with (``S``) or
 without (``s``) offsets. If KALLSYMS are disabled then the symbol
 address is printed instead.
 
+Note, that the ``F`` and ``f`` specifiers are identical to ``S`` (``s``)
+and thus deprecated.
+
 The ``B`` specifier results in the symbol name with offsets and should be
 used when printing stack backtraces. The specifier takes into
 consideration the effect of compiler optimisations which may occur
@@ -77,8 +74,6 @@ when tail-call``s are used and marked with the noreturn GCC attribute.
 
 Examples::
 
-	printk("Going to call: %pF\n", gettimeofday);
-	printk("Going to call: %pF\n", p->func);
 	printk("%s: called from %pS\n", __func__, (void *)_RET_IP_);
 	printk("%s: called from %pS\n", __func__,
 				(void *)__builtin_return_address(0));
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 127e7cfafa55..e2fc09ea9509 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -322,6 +322,7 @@ const char *kallsyms_lookup(unsigned long addr,
 	if (is_ksym_addr(addr)) {
 		unsigned long pos;
 
+		addr = dereference_kernel_function_descriptor(addr);
 		pos = get_symbol_pos(addr, symbolsize, offset);
 		/* Grab name */
 		kallsyms_expand_symbol(get_symbol_offset(pos),
diff --git a/kernel/module.c b/kernel/module.c
index b792e814150a..63361de377ad 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3948,6 +3948,7 @@ const char *module_address_lookup(unsigned long addr,
 	preempt_disable();
 	mod = __module_address(addr);
 	if (mod) {
+		addr = dereference_module_function_descriptor(mod, addr);
 		if (modname)
 			*modname = mod->name;
 		ret = get_ksymbol(mod, addr, size, offset);
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index bcd906a39010..bf04b4f5d8e7 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -40,7 +40,6 @@
 #include "../mm/internal.h"	/* For the trace_print_flags arrays */
 
 #include <asm/page.h>		/* for PAGE_SIZE */
-#include <asm/sections.h>	/* for dereference_function_descriptor() */
 #include <asm/byteorder.h>	/* cpu_to_le16 */
 
 #include <linux/string_helpers.h>
@@ -1721,10 +1720,8 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 	}
 
 	switch (*fmt) {
-	case 'F':
+	case 'F': /* %pF and %pf are kept for compatibility reasons only */
 	case 'f':
-		ptr = (void *)dereference_function_descriptor((unsigned long)ptr);
-		/* Fallthrough */
 	case 'S':
 	case 's':
 	case 'B':
-- 
2.14.1



From - Thu Nov 08 21:40:22 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [RFC][PATCH v2 7/7] checkpatch: add pF/pf deprecation warning
Date: Thu, 21 Sep 2017 01:29:09 +0900
Lines: 46
Approved: news@gmane.org
Message-ID: <20170920162910.32053-8-sergey.senozhatsky@gmail.com>
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        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Andy Whitcroft <apw@canonical.com>,
        Joe Perches <joe@perches.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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We deprecated '%pF/%pf' printk specifiers, since '%pS/%ps' is now smart
enough to handle function pointer dereference on platforms where such
dereference is required.

checkpatch warning example:

WARNING: Use '%pS/%ps' instead. This pointer extension was deprecated: '%pF'

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
---
 scripts/checkpatch.pl | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index dd2c262aebbf..5945e4843466 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5762,18 +5762,20 @@ sub process {
 		        for (my $count = $linenr; $count <= $lc; $count++) {
 				my $fmt = get_quoted_string($lines[$count - 1], raw_line($count, 0));
 				$fmt =~ s/%%//g;
-				if ($fmt =~ /(\%[\*\d\.]*p(?![\WFfSsBKRraEhMmIiUDdgVCbGNO]).)/) {
+				if ($fmt =~ /(\%[\*\d\.]*p(?![\WSsBKRraEhMmIiUDdgVCbGNO]).)/) {
 					$bad_extension = $1;
 					last;
 				}
 			}
 			if ($bad_extension ne "") {
 				my $stat_real = raw_line($linenr, 0);
+				my $error_msg = "Invalid vsprintf pointer extension ";
 				for (my $count = $linenr + 1; $count <= $lc; $count++) {
 					$stat_real = $stat_real . "\n" . raw_line($count, 0);
 				}
+				$error_msg = "Use '%pS/%ps' instead. This pointer extension was deprecated:" if ($bad_extension =~ /pF|pf/);
 				WARN("VSPRINTF_POINTER_EXTENSION",
-				     "Invalid vsprintf pointer extension '$bad_extension'\n" . "$here\n$stat_real\n");
+				     "$error_msg '$bad_extension'\n" . "$here\n$stat_real\n");
 			}
 		}
 
-- 
2.14.1



From - Thu Nov 08 21:40:22 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [RFC][PATCH v2 7/7] checkpatch: add pF/pf deprecation warning
Date: Thu, 21 Sep 2017 01:29:10 +0900
Lines: 46
Approved: news@gmane.org
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        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
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        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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        Michael Ellerman <mpe@ellerman.id.au>,
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        Helge Deller <deller@gmx.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2574179>

We deprecated '%pF/%pf' printk specifiers, since '%pS/%ps' is now smart
enough to handle function pointer dereference on platforms where such
dereference is required.

checkpatch warning example:

WARNING: Use '%pS/%ps' instead. This pointer extension was deprecated: '%pF'

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
---
 scripts/checkpatch.pl | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index dd2c262aebbf..5945e4843466 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5762,18 +5762,20 @@ sub process {
 		        for (my $count = $linenr; $count <= $lc; $count++) {
 				my $fmt = get_quoted_string($lines[$count - 1], raw_line($count, 0));
 				$fmt =~ s/%%//g;
-				if ($fmt =~ /(\%[\*\d\.]*p(?![\WFfSsBKRraEhMmIiUDdgVCbGNO]).)/) {
+				if ($fmt =~ /(\%[\*\d\.]*p(?![\WSsBKRraEhMmIiUDdgVCbGNO]).)/) {
 					$bad_extension = $1;
 					last;
 				}
 			}
 			if ($bad_extension ne "") {
 				my $stat_real = raw_line($linenr, 0);
+				my $error_msg = "Invalid vsprintf pointer extension ";
 				for (my $count = $linenr + 1; $count <= $lc; $count++) {
 					$stat_real = $stat_real . "\n" . raw_line($count, 0);
 				}
+				$error_msg = "Use '%pS/%ps' instead. This pointer extension was deprecated:" if ($bad_extension =~ /pF|pf/);
 				WARN("VSPRINTF_POINTER_EXTENSION",
-				     "Invalid vsprintf pointer extension '$bad_extension'\n" . "$here\n$stat_real\n");
+				     "$error_msg '$bad_extension'\n" . "$here\n$stat_real\n");
 			}
 		}
 
-- 
2.14.1



From - Thu Nov 08 21:40:23 2018
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X-Mozilla-Keys:                                                                                 
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [RFC][PATCH v2 4/7] powerpc64: Add .opd based function descriptor dereference
Date: Thu, 21 Sep 2017 01:29:06 +0900
Lines: 116
Approved: news@gmane.org
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        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
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To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
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        Helge Deller <deller@gmx.de>
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We are moving towards separate kernel and module function descriptor
dereference callbacks. This patch enables it for powerpc64.

For pointers that belong to the kernel
-  Added __start_opd and __end_opd pointers, to track the kernel
   .opd section address range;

-  Added dereference_kernel_function_descriptor(). Now we
   will dereference only function pointers that are within
   [__start_opd, __end_opd];

For pointers that belong to a module
-  Added dereference_module_function_descriptor() to handle module
   function descriptor dereference. Now we will dereference only
   pointers that are within [module->opd.start, module->opd.end].

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 arch/powerpc/include/asm/module.h   |  3 +++
 arch/powerpc/include/asm/sections.h | 11 +++++++++++
 arch/powerpc/kernel/module_64.c     | 16 ++++++++++++++++
 arch/powerpc/kernel/vmlinux.lds.S   |  2 ++
 4 files changed, 32 insertions(+)

diff --git a/arch/powerpc/include/asm/module.h b/arch/powerpc/include/asm/module.h
index 6c0132c7212f..7e28442827f1 100644
--- a/arch/powerpc/include/asm/module.h
+++ b/arch/powerpc/include/asm/module.h
@@ -45,6 +45,9 @@ struct mod_arch_specific {
 	unsigned long tramp;
 #endif
 
+	/* For module function descriptor dereference */
+	unsigned long start_opd;
+	unsigned long end_opd;
 #else /* powerpc64 */
 	/* Indices of PLT sections within module. */
 	unsigned int core_plt_section;
diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
index 67379b8945e8..6b4ee0d1645f 100644
--- a/arch/powerpc/include/asm/sections.h
+++ b/arch/powerpc/include/asm/sections.h
@@ -75,6 +75,17 @@ static inline unsigned long dereference_function_descriptor(unsigned long ptr)
 		ptr = (unsigned long)p;
 	return ptr;
 }
+
+#undef dereference_kernel_function_descriptor
+static inline unsigned long
+dereference_kernel_function_descriptor(unsigned long addr)
+{
+	if (addr < (unsigned long)__start_opd ||
+			addr >= (unsigned long)__end_opd)
+		return addr;
+
+	return dereference_function_descriptor(addr);
+}
 #endif /* PPC64_ELF_ABI_v1 */
 
 #endif
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index 0b0f89685b67..94caec045a90 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -344,6 +344,11 @@ int module_frob_arch_sections(Elf64_Ehdr *hdr,
 		else if (strcmp(secstrings+sechdrs[i].sh_name,"__versions")==0)
 			dedotify_versions((void *)hdr + sechdrs[i].sh_offset,
 					  sechdrs[i].sh_size);
+		else if (!strcmp(secstrings + sechdrs[i].sh_name, ".opd")) {
+			me->arch.start_opd = sechdrs[i].sh_addr;
+			me->arch.end_opd = sechdrs[i].sh_addr +
+					   sechdrs[i].sh_size;
+		}
 
 		/* We don't handle .init for the moment: rename to _init */
 		while ((p = strstr(secstrings + sechdrs[i].sh_name, ".init")))
@@ -712,6 +717,17 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 	return 0;
 }
 
+#ifdef PPC64_ELF_ABI_v1
+unsigned long dereference_module_function_descriptor(struct module *mod,
+						     unsigned long addr)
+{
+	if (addr < mod->arch.start_opd || addr >= mod->arch.end_opd)
+		return addr;
+
+	return dereference_function_descriptor(addr);
+}
+#endif /* PPC64_ELF_ABI_v1 */
+
 #ifdef CONFIG_DYNAMIC_FTRACE
 
 #ifdef CC_USING_MPROFILE_KERNEL
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 882628fa6987..70e10251e083 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -277,7 +277,9 @@ SECTIONS
 	}
 
 	.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	}
 
 	. = ALIGN(256);
-- 
2.14.1

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From - Thu Nov 08 21:40:23 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [RFC][PATCH v2 1/7] switch dereference_function_descriptor() to `unsigned long'
Date: Thu, 21 Sep 2017 01:29:03 +0900
Lines: 198
Approved: news@gmane.org
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Cc: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
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Xref: news.gmane.org gmane.linux.kernel:2574185 gmane.linux.ports.ia64:28139 gmane.linux.ports.parisc:27837 gmane.linux.ports.ppc64.devel:148129
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2574185>

Convert dereference_function_descriptor() to accept and return
`unsigned long'. There will be two new ARCH function for kernel
and module function pointer dereference, which will work with
`unsigned long', so the patch unifies interfaces.

Besides, dereference_function_descriptor() mostly work with
`unsigned long':

drivers/misc/kgdbts.c:
addr = (unsigned long) dereference_function_descriptor((void *)addr);

init/main.c:
addr = (unsigned long) dereference_function_descriptor(fn);

kernel/extable.c:
addr = (unsigned long) dereference_function_descriptor(ptr);

kernel/module.c:
unsigned long a = (unsigned long)dereference_function_descriptor(addr);

Convert dereference_function_descriptor() users tree-wide.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 arch/ia64/include/asm/sections.h    | 6 +++---
 arch/parisc/include/asm/sections.h  | 2 +-
 arch/parisc/kernel/process.c        | 6 +++---
 arch/parisc/mm/init.c               | 4 ++--
 arch/powerpc/include/asm/sections.h | 6 +++---
 drivers/misc/kgdbts.c               | 2 +-
 init/main.c                         | 2 +-
 kernel/extable.c                    | 2 +-
 kernel/module.c                     | 2 +-
 lib/vsprintf.c                      | 2 +-
 10 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h
index 2ab2003698ef..de6bfa1ef8fb 100644
--- a/arch/ia64/include/asm/sections.h
+++ b/arch/ia64/include/asm/sections.h
@@ -27,13 +27,13 @@ extern char __start_unwind[], __end_unwind[];
 extern char __start_ivt_text[], __end_ivt_text[];
 
 #undef dereference_function_descriptor
-static inline void *dereference_function_descriptor(void *ptr)
+static inline unsigned long dereference_function_descriptor(unsigned long ptr)
 {
-	struct fdesc *desc = ptr;
+	struct fdesc *desc = (struct fdesc *)ptr;
 	void *p;
 
 	if (!probe_kernel_address(&desc->ip, p))
-		ptr = p;
+		ptr = (unsigned long)p;
 	return ptr;
 }
 
diff --git a/arch/parisc/include/asm/sections.h b/arch/parisc/include/asm/sections.h
index 9d13c3507ad6..59fbe0067112 100644
--- a/arch/parisc/include/asm/sections.h
+++ b/arch/parisc/include/asm/sections.h
@@ -6,7 +6,7 @@
 
 #ifdef CONFIG_64BIT
 #undef dereference_function_descriptor
-void *dereference_function_descriptor(void *);
+unsigned long dereference_function_descriptor(unsigned long);
 #endif
 
 #endif
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index a45a67d526f8..f00a5f93492a 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -267,13 +267,13 @@ get_wchan(struct task_struct *p)
 }
 
 #ifdef CONFIG_64BIT
-void *dereference_function_descriptor(void *ptr)
+unsigned long dereference_function_descriptor(unsigned long ptr)
 {
-	Elf64_Fdesc *desc = ptr;
+	Elf64_Fdesc *desc = (Elf64_Fdesc *)ptr;
 	void *p;
 
 	if (!probe_kernel_address(&desc->addr, p))
-		ptr = p;
+		ptr = (unsigned long)p;
 	return ptr;
 }
 #endif
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1ca9a2b4239f..06e1b79e2946 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -389,10 +389,10 @@ static void __init setup_bootmem(void)
 static int __init parisc_text_address(unsigned long vaddr)
 {
 	static unsigned long head_ptr __initdata;
+	unsigned long addr = (unsigned long)&parisc_kernel_start;
 
 	if (!head_ptr)
-		head_ptr = PAGE_MASK & (unsigned long)
-			dereference_function_descriptor(&parisc_kernel_start);
+		head_ptr = PAGE_MASK & dereference_function_descriptor(addr);
 
 	return core_kernel_text(vaddr) || vaddr == head_ptr;
 }
diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
index 7902d6358854..67379b8945e8 100644
--- a/arch/powerpc/include/asm/sections.h
+++ b/arch/powerpc/include/asm/sections.h
@@ -66,13 +66,13 @@ static inline int overlaps_kvm_tmp(unsigned long start, unsigned long end)
 
 #ifdef PPC64_ELF_ABI_v1
 #undef dereference_function_descriptor
-static inline void *dereference_function_descriptor(void *ptr)
+static inline unsigned long dereference_function_descriptor(unsigned long ptr)
 {
-	struct ppc64_opd_entry *desc = ptr;
+	struct ppc64_opd_entry *desc = (struct ppc64_opd_entry *)ptr;
 	void *p;
 
 	if (!probe_kernel_address(&desc->funcaddr, p))
-		ptr = p;
+		ptr = (unsigned long)p;
 	return ptr;
 }
 #endif /* PPC64_ELF_ABI_v1 */
diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
index fc7efedbc4be..6a5a159dfb75 100644
--- a/drivers/misc/kgdbts.c
+++ b/drivers/misc/kgdbts.c
@@ -225,7 +225,7 @@ static unsigned long lookup_addr(char *arg)
 		addr = (unsigned long)_do_fork;
 	else if (!strcmp(arg, "hw_break_val"))
 		addr = (unsigned long)&hw_break_val;
-	addr = (unsigned long) dereference_function_descriptor((void *)addr);
+	addr = dereference_function_descriptor(addr);
 	return addr;
 }
 
diff --git a/init/main.c b/init/main.c
index 0ee9c6866ada..396b0bda696e 100644
--- a/init/main.c
+++ b/init/main.c
@@ -761,7 +761,7 @@ static bool __init_or_module initcall_blacklisted(initcall_t fn)
 	if (list_empty(&blacklisted_initcalls))
 		return false;
 
-	addr = (unsigned long) dereference_function_descriptor(fn);
+	addr = dereference_function_descriptor((unsigned long)fn);
 	sprint_symbol_no_offset(fn_name, addr);
 
 	/*
diff --git a/kernel/extable.c b/kernel/extable.c
index 38c2412401a1..ca4c34d1d5a4 100644
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -150,7 +150,7 @@ int kernel_text_address(unsigned long addr)
 int func_ptr_is_kernel_text(void *ptr)
 {
 	unsigned long addr;
-	addr = (unsigned long) dereference_function_descriptor(ptr);
+	addr = dereference_function_descriptor((unsigned long)ptr);
 	if (core_kernel_text(addr))
 		return 1;
 	return is_module_text_address(addr);
diff --git a/kernel/module.c b/kernel/module.c
index de66ec825992..ea77ab13bead 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1067,7 +1067,7 @@ EXPORT_SYMBOL(__symbol_put);
 void symbol_put_addr(void *addr)
 {
 	struct module *modaddr;
-	unsigned long a = (unsigned long)dereference_function_descriptor(addr);
+	unsigned long a = dereference_function_descriptor((unsigned long)addr);
 
 	if (core_kernel_text(a))
 		return;
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 86c3385b9eb3..bcd906a39010 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1723,7 +1723,7 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 	switch (*fmt) {
 	case 'F':
 	case 'f':
-		ptr = dereference_function_descriptor(ptr);
+		ptr = (void *)dereference_function_descriptor((unsigned long)ptr);
 		/* Fallthrough */
 	case 'S':
 	case 's':
-- 
2.14.1



From - Thu Nov 08 21:40:23 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [RFC][PATCH v2 7/7] checkpatch: add pF/pf deprecation warning
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On (09/21/17 01:29), Sergey Senozhatsky wrote:
> We deprecated '%pF/%pf' printk specifiers, since '%pS/%ps' is now smart
> enough to handle function pointer dereference on platforms where such
> dereference is required.
> 
> checkpatch warning example:
> 
> WARNING: Use '%pS/%ps' instead. This pointer extension was deprecated: '%pF'

weird... somehow I sent this patch twice. please ignore this one.

	-ss
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Subject: Re: [RFC][PATCH v2 7/7] checkpatch: add pF/pf deprecation warning
Date: Wed, 20 Sep 2017 10:38:58 -0700
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To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
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On Thu, 2017-09-21 at 01:29 +0900, Sergey Senozhatsky wrote:
> We deprecated '%pF/%pf' printk specifiers, since '%pS/%ps' is now smart
> enough to handle function pointer dereference on platforms where such
> dereference is required.
> 
> checkpatch warning example:
> 
> WARNING: Use '%pS/%ps' instead. This pointer extension was deprecated: '%pF'

If this series is accepted,  I think this message
is unclear and would prefer something like:
---
scripts/checkpatch.pl | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index dd2c262aebbf..71f3273d5913 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5762,18 +5762,25 @@ sub process {
		for (my $count = $linenr; $count <= $lc; $count++) {
				my $fmt = get_quoted_string($lines[$count - 1], raw_line($count, 0));
				$fmt =~ s/%%//g;
-				if ($fmt =~ /(\%[\*\d\.]*p(?![\WFfSsBKRraEhMmIiUDdgVCbGNO]).)/) {
+				if ($fmt =~ /(\%[\*\d\.]*p(?![\WSsBKRraEhMmIiUDdgVCbGNO]).)/) {
					$bad_extension = $1;
					last;
				}
			}
			if ($bad_extension ne "") {
				my $stat_real = raw_line($linenr, 0);
+				my $ext_type = "Invalid";
+				my $use = "";
				for (my $count = $linenr + 1; $count <= $lc; $count++) {
					$stat_real = $stat_real . "\n" . raw_line($count, 0);
				}
+				if ($bad_extension =~ /p[Ff]/i) {
+					$ext_type = "Deprecated";
+					$use = " - use %pS instead";
+					$use =~ s/pS/ps/ if ($bad_extension =~ /pf/);
+				}
				WARN("VSPRINTF_POINTER_EXTENSION",
-				"Invalid vsprintf pointer extension '$bad_extension'\n" . "$here\n$stat_real\n");
+				"$ext_type vsprintf pointer extension '$bad_extension'$use\n" . "$here\n$stat_real\n");
			}
		}



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Subject: Re: [RFC][PATCH v2 7/7] checkpatch: add pF/pf deprecation warning
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On 20.09.2017 19:38, Joe Perches wrote:
> On Thu, 2017-09-21 at 01:29 +0900, Sergey Senozhatsky wrote:
>> We deprecated '%pF/%pf' printk specifiers, since '%pS/%ps' is now smart
>> enough to handle function pointer dereference on platforms where such
>> dereference is required.
>>
>> checkpatch warning example:
>>
>> WARNING: Use '%pS/%ps' instead. This pointer extension was deprecated: '%pF'
> 
> If this series is accepted,  I think this message
> is unclear and would prefer something like:

Is it worth to mention, that it's still needed in older kernels?
Just in case some patch get's backported.

Helge


From - Thu Nov 08 21:40:23 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [RFC][PATCH v2 7/7] checkpatch: add pF/pf deprecation warning
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Cc: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
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To: Helge Deller <deller@gmx.de>,
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On Wed, 2017-09-20 at 19:53 +0200, Helge Deller wrote:
> On 20.09.2017 19:38, Joe Perches wrote:
> > On Thu, 2017-09-21 at 01:29 +0900, Sergey Senozhatsky wrote:
> > > We deprecated '%pF/%pf' printk specifiers, since '%pS/%ps' is now smart
> > > enough to handle function pointer dereference on platforms where such
> > > dereference is required.
> > > 
> > > checkpatch warning example:
> > > 
> > > WARNING: Use '%pS/%ps' instead. This pointer extension was deprecated: '%pF'
> > 
> > If this series is accepted,  I think this message
> > is unclear and would prefer something like:
> 
> Is it worth to mention, that it's still needed in older kernels?
> Just in case some patch get's backported.

I think probably not.

There are relatively few references and
modifications are unlikely to be backported.

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Subject: [PATCH] parisc: Add CPU topology support
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Add topology support, including multi-core scheduler support on
PA8800/PA8900 CPUs and enhanced output in /proc/cpuinfo, e.g.
lscpu now reports on a single-socket, dual-core machine:

Architecture:          parisc64
CPU(s):                2
On-line CPU(s) list:   0,1
Thread(s) per core:    1
Core(s) per socket:    2
Socket(s):             1
CPU family:            PA-RISC 2.0
Model name:            PA8800 (Mako)

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index ba7b7dd..bb8ed34 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -31,6 +31,7 @@ config PARISC
 	select GENERIC_PCI_IOMAP
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_SMP_IDLE_THREAD
+	select GENERIC_CPU_DEVICES
 	select GENERIC_STRNCPY_FROM_USER
 	select SYSCTL_ARCH_UNALIGN_ALLOW
 	select SYSCTL_EXCEPTION_TRACE
@@ -275,6 +276,21 @@ config SMP
 
 	  If you don't know what to do here, say N.
 
+config PARISC_CPU_TOPOLOGY
+	bool "Support cpu topology definition"
+	depends on SMP
+	default y
+	help
+	  Support PARISC cpu topology definition.
+
+config SCHED_MC
+	bool "Multi-core scheduler support"
+	depends on PARISC_CPU_TOPOLOGY && PA8X00
+	help
+	  Multi-core scheduler support improves the CPU scheduler's decision
+	  making when dealing with multi-core CPU chips at a cost of slightly
+	  increased overhead in some places. If unsure say N here.
+
 config IRQSTACKS
 	bool "Use separate kernel stacks when processing interrupts"
 	default y
diff --git a/arch/parisc/include/asm/topology.h b/arch/parisc/include/asm/topology.h
new file mode 100644
index 0000000..6f0750c
--- /dev/null
+++ b/arch/parisc/include/asm/topology.h
@@ -0,0 +1,36 @@
+#ifndef _ASM_PARISC_TOPOLOGY_H
+#define _ASM_PARISC_TOPOLOGY_H
+
+#ifdef CONFIG_PARISC_CPU_TOPOLOGY
+
+#include <linux/cpumask.h>
+
+struct cputopo_parisc {
+	int thread_id;
+	int core_id;
+	int socket_id;
+	cpumask_t thread_sibling;
+	cpumask_t core_sibling;
+};
+
+extern struct cputopo_parisc cpu_topology[NR_CPUS];
+
+#define topology_physical_package_id(cpu)	(cpu_topology[cpu].socket_id)
+#define topology_core_id(cpu)		(cpu_topology[cpu].core_id)
+#define topology_core_cpumask(cpu)	(&cpu_topology[cpu].core_sibling)
+#define topology_sibling_cpumask(cpu)	(&cpu_topology[cpu].thread_sibling)
+
+void init_cpu_topology(void);
+void store_cpu_topology(unsigned int cpuid);
+const struct cpumask *cpu_coregroup_mask(int cpu);
+
+#else
+
+static inline void init_cpu_topology(void) { }
+static inline void store_cpu_topology(unsigned int cpuid) { }
+
+#endif
+
+#include <asm-generic/topology.h>
+
+#endif /* _ASM_ARM_TOPOLOGY_H */
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index c4294df..10b1b04 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -8,8 +8,7 @@ obj-y	     	:= cache.o pacache.o setup.o pdt.o traps.o time.o irq.o \
 		   pa7300lc.o syscall.o entry.o sys_parisc.o firmware.o \
 		   ptrace.o hardware.o inventory.o drivers.o \
 		   signal.o hpmc.o real2.o parisc_ksyms.o unaligned.o \
-		   process.o processor.o pdc_cons.o pdc_chassis.o unwind.o \
-		   topology.o
+		   process.o processor.o pdc_cons.o pdc_chassis.o unwind.o
 
 ifdef CONFIG_FUNCTION_TRACER
 # Do not profile debug and lowlevel utilities
@@ -29,5 +28,6 @@ obj-$(CONFIG_AUDIT)	+= audit.o
 obj64-$(CONFIG_AUDIT)	+= compat_audit.o
 # only supported for PCX-W/U in 64-bit mode at the moment
 obj-$(CONFIG_64BIT)	+= perf.o perf_asm.o $(obj64-y)
+obj-$(CONFIG_PARISC_CPU_TOPOLOGY)	+= topology.o
 obj-$(CONFIG_FUNCTION_TRACER)		+= ftrace.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)	+= ftrace.o
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index a778bd3..2deadad 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -184,6 +184,9 @@ static int __init processor_probe(struct parisc_device *dev)
 	p->txn_addr = txn_addr;	/* save CPU IRQ address */
 	p->cpu_num = cpu_info.cpu_num;
 	p->cpu_loc = cpu_info.cpu_loc;
+
+	store_cpu_topology(cpuid);
+
 #ifdef CONFIG_SMP
 	/*
 	** FIXME: review if any other initialization is clobbered
@@ -388,6 +391,14 @@ show_cpuinfo (struct seq_file *m, void *v)
 				 boot_cpu_data.cpu_hz / 1000000,
 				 boot_cpu_data.cpu_hz % 1000000  );
 
+#ifdef CONFIG_PARISC_CPU_TOPOLOGY
+		seq_printf(m, "physical id\t: %d\n",
+				topology_physical_package_id(cpu));
+		seq_printf(m, "siblings\t: %d\n",
+				cpumask_weight(topology_core_cpumask(cpu)));
+		seq_printf(m, "core id\t\t: %d\n", topology_core_id(cpu));
+#endif
+
 		seq_printf(m, "capabilities\t:");
 		if (boot_cpu_data.pdc.capabilities & PDC_MODEL_OS32)
 			seq_puts(m, " os32");
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index dee6f9d..5dec93c 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -408,6 +408,9 @@ void start_parisc(void)
 
 	cpunum = smp_processor_id();
 
+	init_cpu_topology();
+	store_cpu_topology(cpunum);
+
 	set_firmware_width_unlocked();
 
 	ret = pdc_coproc_cfg_unlocked(&coproc_cfg);
diff --git a/arch/parisc/kernel/topology.c b/arch/parisc/kernel/topology.c
index f515938..551b132 100644
--- a/arch/parisc/kernel/topology.c
+++ b/arch/parisc/kernel/topology.c
@@ -1,37 +1,140 @@
 /*
- * arch/parisc/kernel/topology.c - Populate sysfs with topology information
+ * arch/parisc/kernel/topology.c
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * Copyright (C) 2017 Helge Deller <deller@gmx.de>
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT.  See the GNU General Public License for more
- * details.
+ * based on arch/arm/kernel/topology.c
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/cpu.h>
-#include <linux/cache.h>
+#include <linux/percpu.h>
+#include <linux/sched.h>
+#include <linux/sched/topology.h>
 
-static DEFINE_PER_CPU(struct cpu, cpu_devices);
+#include <asm/topology.h>
 
-static int __init topology_init(void)
+ /*
+  * cpu topology table
+  */
+struct cputopo_parisc cpu_topology[NR_CPUS];
+EXPORT_SYMBOL_GPL(cpu_topology);
+
+const struct cpumask *cpu_coregroup_mask(int cpu)
+{
+	return &cpu_topology[cpu].core_sibling;
+}
+
+static void update_siblings_masks(unsigned int cpuid)
 {
-	int num;
+	struct cputopo_parisc *cpu_topo, *cpuid_topo = &cpu_topology[cpuid];
+	int cpu;
+
+	/* update core and thread sibling masks */
+	for_each_possible_cpu(cpu) {
+		cpu_topo = &cpu_topology[cpu];
+
+		if (cpuid_topo->socket_id != cpu_topo->socket_id)
+			continue;
+
+		cpumask_set_cpu(cpuid, &cpu_topo->core_sibling);
+		if (cpu != cpuid)
+			cpumask_set_cpu(cpu, &cpuid_topo->core_sibling);
+
+		if (cpuid_topo->core_id != cpu_topo->core_id)
+			continue;
 
-	for_each_present_cpu(num) {
-		register_cpu(&per_cpu(cpu_devices, num), num);
+		cpumask_set_cpu(cpuid, &cpu_topo->thread_sibling);
+		if (cpu != cpuid)
+			cpumask_set_cpu(cpu, &cpuid_topo->thread_sibling);
 	}
-	return 0;
+	smp_wmb();
 }
 
-subsys_initcall(topology_init);
+/*
+ * store_cpu_topology is called at boot when only one cpu is running
+ * and with the mutex cpu_hotplug.lock locked, when several cpus have booted,
+ * which prevents simultaneous write access to cpu_topology array
+ */
+void store_cpu_topology(unsigned int cpuid)
+{
+	struct cputopo_parisc *cpuid_topo = &cpu_topology[cpuid];
+	struct cpuinfo_parisc *p;
+
+	/* If the cpu topology has been already set, just return */
+	if (cpuid_topo->core_id != -1)
+		return;
+
+	/* create cpu topology mapping */
+	cpuid_topo->thread_id = -1;
+	cpuid_topo->core_id = 0;
+
+	if (cpuid == 0) {
+		cpuid_topo->socket_id = 0; // -1;
+	} else {
+		unsigned long cpu;
+		int max_socket = 0;
+
+		p = &per_cpu(cpu_data, cpuid);
+		for_each_possible_cpu(cpu) {
+			const struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
+
+			if (cpu == cpuid)
+				continue;
+
+			if (cpuinfo->cpu_loc == p->cpu_loc) {
+				cpuid_topo->core_id   = cpu_topology[cpu].core_id + 1;
+				cpuid_topo->socket_id = cpu_topology[cpu].socket_id;
+				continue;
+			}
+
+			if (cpuid_topo->socket_id == -1)
+				max_socket = max(max_socket, cpuid_topo->socket_id);
+		}
+
+		if (cpuid_topo->socket_id == -1)
+			cpuid_topo->socket_id = max_socket + 1;
+	}
+
+	update_siblings_masks(cpuid);
+
+	pr_info("CPU%u: thread %d, cpu %d, socket %d\n",
+		cpuid, cpu_topology[cpuid].thread_id,
+		cpu_topology[cpuid].core_id,
+		cpu_topology[cpuid].socket_id);
+}
+
+static struct sched_domain_topology_level parisc_topology[] = {
+#ifdef CONFIG_SCHED_MC
+	{ cpu_coregroup_mask, cpu_core_flags, SD_INIT_NAME(MC) },
+#endif
+
+	{ cpu_cpu_mask, SD_INIT_NAME(DIE) },
+	{ NULL, },
+};
+
+/*
+ * init_cpu_topology is called at boot when only one cpu is running
+ * which prevent simultaneous write access to cpu_topology array
+ */
+void __init init_cpu_topology(void)
+{
+	unsigned int cpu;
+
+	/* init core mask and capacity */
+	for_each_possible_cpu(cpu) {
+		struct cputopo_parisc *cpu_topo = &(cpu_topology[cpu]);
+
+		cpu_topo->thread_id = -1;
+		cpu_topo->core_id =  -1;
+		cpu_topo->socket_id = -1;
+		cpumask_clear(&cpu_topo->core_sibling);
+		cpumask_clear(&cpu_topo->thread_sibling);
+	}
+	smp_wmb();
+
+	/* Set scheduler topology descriptor */
+	set_sched_topology(parisc_topology);
+}
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From - Thu Nov 08 21:40:23 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [RFC][PATCH v2 0/7] printk/ia64/ppc64/parisc64: let's deprecate
 %pF/%pf printk specifiers
Date: Wed, 20 Sep 2017 22:14:49 +0200
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Cc: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        James Bottomley <jejb@parisc-linux.org>
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Xref: news.gmane.org gmane.linux.ports.ia64:28144 gmane.linux.ports.parisc:27843 gmane.linux.ports.ppc64.devel:148140 gmane.linux.kernel:2574357
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On 20.09.2017 18:29, Sergey Senozhatsky wrote:
>          This patch set attempts to move ia64/ppc64/parisc64 C function
> pointer ABI details out of printk() to arch code. Function dereference
> code now checks if a pointer belongs to a .opd ELF section and dereferences
> that pointer only if it does. The kernel and modules have their own .opd
> sections that's why I use two different ARCH functions: for kernel and
> for module pointer dereference.
> ...> *** A BIG NOTE ***
>          I don't own ia64/ppc64/parisc64 hardware, so the patches are not
>          tested. Sorry about that!


I just now tested your patch series successfully on parisc64.

You may add to the whole series:
Tested-by: Helge Deller <deller@gmx.de> # parisc64

  
> Another note:
>          I need to check what is BPF symbol lookup and do we need to
>          do any dereference there.

Not relevant for parisc, since we don't support it yet.

Helge
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From - Thu Nov 08 21:40:23 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC][PATCH v2 7/7] checkpatch: add pF/pf deprecation warning
Date: Thu, 21 Sep 2017 09:27:17 +0900
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To: Joe Perches <joe@perches.com>
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On (09/20/17 10:38), Joe Perches wrote:
> On Thu, 2017-09-21 at 01:29 +0900, Sergey Senozhatsky wrote:
> > We deprecated '%pF/%pf' printk specifiers, since '%pS/%ps' is now smart
> > enough to handle function pointer dereference on platforms where such
> > dereference is required.
> > 
> > checkpatch warning example:
> > 
> > WARNING: Use '%pS/%ps' instead. This pointer extension was deprecated: '%pF'
> 
> If this series is accepted,  I think this message
> is unclear and would prefer something like:

sure, can tweak the patch.

[..]
> 			if ($bad_extension ne "") {
> 				my $stat_real = raw_line($linenr, 0);
> +				my $ext_type = "Invalid";
> +				my $use = "";
> 				for (my $count = $linenr + 1; $count <= $lc; $count++) {
> 					$stat_real = $stat_real . "\n" . raw_line($count, 0);
> 				}
> +				if ($bad_extension =~ /p[Ff]/i) {
						I think /i is not necessary here

> +					$ext_type = "Deprecated";
> +					$use = " - use %pS instead";
> +					$use =~ s/pS/ps/ if ($bad_extension =~ /pf/);
							ok, handy :)

	-ss


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Subject: Re: [RFC][PATCH v2 0/7] printk/ia64/ppc64/parisc64: let's deprecate
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To: Helge Deller <deller@gmx.de>
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On (09/20/17 22:14), Helge Deller wrote:
> On 20.09.2017 18:29, Sergey Senozhatsky wrote:
> >          This patch set attempts to move ia64/ppc64/parisc64 C function
> > pointer ABI details out of printk() to arch code. Function dereference
> > code now checks if a pointer belongs to a .opd ELF section and dereferences
> > that pointer only if it does. The kernel and modules have their own .opd
> > sections that's why I use two different ARCH functions: for kernel and
> > for module pointer dereference.
> > ...> *** A BIG NOTE ***
> >          I don't own ia64/ppc64/parisc64 hardware, so the patches are not
> >          tested. Sorry about that!
> 
> 
> I just now tested your patch series successfully on parisc64.
> 
> You may add to the whole series:
> Tested-by: Helge Deller <deller@gmx.de> # parisc64

thanks, Helge!

> > Another note:
> >          I need to check what is BPF symbol lookup and do we need to
> >          do any dereference there.
> 
> Not relevant for parisc, since we don't support it yet.

so that was my suspicion as well. at glance it didn't look like
bpf symbol resolution would work on platforms that do description
dereference.

	-ss
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From - Thu Nov 08 21:40:23 2018
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Subject: Re: [RFC][PATCH v2 7/7] checkpatch: add pF/pf deprecation warning
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On Thu, 2017-09-21 at 09:27 +0900, Sergey Senozhatsky wrote:
> On (09/20/17 10:38), Joe Perches wrote:
> > On Thu, 2017-09-21 at 01:29 +0900, Sergey Senozhatsky wrote:
> > > We deprecated '%pF/%pf' printk specifiers, since '%pS/%ps' is now smart
> > > enough to handle function pointer dereference on platforms where such
> > > dereference is required.
> > > 
> > > checkpatch warning example:
> > > 
> > > WARNING: Use '%pS/%ps' instead. This pointer extension was deprecated: '%pF'
> > 
> > If this series is accepted,  I think this message
> > is unclear and would prefer something like:
> 
> sure, can tweak the patch.
> 
> [..]
> > 			if ($bad_extension ne "") {
> > 				my $stat_real = raw_line($linenr, 0);
> > +				my $ext_type = "Invalid";
> > +				my $use = "";
> > 				for (my $count = $linenr + 1; $count <= $lc; $count++) {
> > 					$stat_real = $stat_real . "\n" . raw_line($count, 0);
> > 				}
> > +				if ($bad_extension =~ /p[Ff]/i) {
> 
> 						I think /i is not necessary here

You are right, it's not.

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On (09/20/17 11:24), Joe Perches wrote:
> On Wed, 2017-09-20 at 19:53 +0200, Helge Deller wrote:
[..]
> > Is it worth to mention, that it's still needed in older kernels?
> > Just in case some patch get's backported.

good question.

> I think probably not.
> 
> There are relatively few references and
> modifications are unlikely to be backported.

I tend to agree.

unlikely anyone backports printk message updates. I have quickly glanced
through stable-4.9 and haven't seen such backports. well, may be there
are some.

can tweak the warning a bit, probably. e.g. "if you are planning to
backport your change to kernels older than 4.14 then ignore this
warning". but not sure if it's worth it.

	-ss
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On (09/21/17 01:29), Sergey Senozhatsky wrote:
[..]
> +	%pS	versatile_init+0x0/0x110
> +	%ps	versatile_init
>  	%pF	versatile_init+0x0/0x110
>  	%pf	versatile_init
> -	%pS	versatile_init+0x0/0x110
>  	%pSR	versatile_init+0x9/0x110
>  		(with __builtin_extract_return_addr() translation)
> -	%ps	versatile_init
>  	%pB	prev_fn_of_versatile_init+0x88/0x88
>  
> -The ``F`` and ``f`` specifiers are for printing function pointers,
> -for example, f->func, &gettimeofday. They have the same result as
> -``S`` and ``s`` specifiers. But they do an extra conversion on
> -ia64, ppc64 and parisc64 architectures where the function pointers
> -are actually function descriptors.
> -
>  The ``S`` and ``s`` specifiers can be used for printing symbols
>  from direct addresses, for example, __builtin_return_address(0),
>  (void *)regs->ip. They result in the symbol name with (``S``) or
>  without (``s``) offsets. If KALLSYMS are disabled then the symbol
>  address is printed instead.
>  
> +Note, that the ``F`` and ``f`` specifiers are identical to ``S`` (``s``)
> +and thus deprecated.

JFI,

I have updated this part. it's probably too early to completely
wipe out pF/pf info.

the updated Doc goes like this:

+Note, that the ``F`` and ``f`` specifiers are identical to ``S`` (``s``)
+and thus deprecated. We have ``F`` and ``f`` because on ia64, ppc64 and
+parisc64 function pointers are indirect and, in fact, are function
+descriptors, which require additional dereferencing before we can lookup
+the symbol. As of now, ``S`` and ``s`` perform dereferencing on those
+platforms (when needed), so ``F`` and ``f`` exist for compatibility
+reasons only.

	-ss


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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/smp.h b/arch/parisc/include/asm/smp.h
index a5dc9066c6d8..ad9c9c3b4136 100644
--- a/arch/parisc/include/asm/smp.h
+++ b/arch/parisc/include/asm/smp.h
@@ -1,6 +1,7 @@
 #ifndef __ASM_SMP_H
 #define __ASM_SMP_H
 
+extern int init_per_cpu(int cpuid);
 
 #if defined(CONFIG_SMP)
 
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index ad7310029fe0..45cc65902fce 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -320,7 +320,7 @@ void __init collect_boot_cpu_data(void)
  *
  * o Enable CPU profiling hooks.
  */
-int init_per_cpu(int cpunum)
+int __init init_per_cpu(int cpunum)
 {
 	int ret;
 	struct pdc_coproc_cfg coproc_cfg;
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index fd751b9ae9d9..47cdba759e30 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -116,7 +116,6 @@ void __init dma_ops_init(void)
 }
 #endif
 
-extern int init_per_cpu(int cpuid);
 extern void collect_boot_cpu_data(void);
 
 void __init setup_arch(char **cmdline_p)
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 63365106ea19..30c28ab14540 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -255,12 +255,11 @@ void arch_send_call_function_single_ipi(int cpu)
 static void __init
 smp_cpu_init(int cpunum)
 {
-	extern int init_per_cpu(int);  /* arch/parisc/kernel/processor.c */
 	extern void init_IRQ(void);    /* arch/parisc/kernel/irq.c */
 	extern void start_cpu_itimer(void); /* arch/parisc/kernel/time.c */
 
 	/* Set modes and Enable floating point coprocessor */
-	(void) init_per_cpu(cpunum);
+	init_per_cpu(cpunum);
 
 	disable_sr_hashing();
 
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Add HWPOISON page fault handler code
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Commit 24587380f61d ("parisc: Add MADV_HWPOISON and MADV_SOFT_OFFLINE") added
the necessary constants to handle hardware-poisoning. Those were needed to
support the page deallocation feature from firmware.

But I completely missed to add the relevant fault handler code. This now
showed up when I ran the madvise07 testcase from the Linux Test Project,
which failed with a kernel BUG at arch/parisc/mm/fault.c:320.

With this patch the parisc kernel now behaves like other platforms and
gives the same kernel syslog warnings when poisoning pages.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 5b101f6..0d55e23 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -17,6 +17,7 @@
 #include <linux/interrupt.h>
 #include <linux/extable.h>
 #include <linux/uaccess.h>
+#include <linux/hugetlb.h>
 
 #include <asm/traps.h>
 
@@ -315,7 +316,8 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 			goto out_of_memory;
 		else if (fault & VM_FAULT_SIGSEGV)
 			goto bad_area;
-		else if (fault & VM_FAULT_SIGBUS)
+		else if (fault & (VM_FAULT_SIGBUS|VM_FAULT_HWPOISON|
+				  VM_FAULT_HWPOISON_LARGE))
 			goto bad_area;
 		BUG();
 	}
@@ -352,8 +354,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 
 	if (user_mode(regs)) {
 		struct siginfo si;
-
-		show_signal_msg(regs, code, address, tsk, vma);
+		unsigned int lsb = 0;
 
 		switch (code) {
 		case 15:	/* Data TLB miss fault/Data page fault */
@@ -386,6 +387,30 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 			si.si_code = (code == 26) ? SEGV_ACCERR : SEGV_MAPERR;
 			break;
 		}
+
+#ifdef CONFIG_MEMORY_FAILURE
+		if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
+			printk(KERN_ERR
+	"MCE: Killing %s:%d due to hardware memory corruption fault at %08lx\n",
+			tsk->comm, tsk->pid, address);
+			si.si_signo = SIGBUS;
+			si.si_code = BUS_MCEERR_AR;
+		}
+#endif
+
+		/*
+		 * Either small page or large page may be poisoned.
+		 * In other words, VM_FAULT_HWPOISON_LARGE and
+		 * VM_FAULT_HWPOISON are mutually exclusive.
+		 */
+		if (fault & VM_FAULT_HWPOISON_LARGE)
+			lsb = hstate_index_to_shift(VM_FAULT_GET_HINDEX(fault));
+		else if (fault & VM_FAULT_HWPOISON)
+			lsb = PAGE_SHIFT;
+		else
+			show_signal_msg(regs, code, address, tsk, vma);
+		si.si_addr_lsb = lsb;
+
 		si.si_errno = 0;
 		si.si_addr = (void __user *) address;
 		force_sig_info(si.si_signo, &si, current);
--
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Newsgroups: gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: Add CPU topology support
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>From b845fcfb49d60e8cc11e240a0e01911115bdc434 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Wed, 20 Sep 2017 21:20:18 +0200
Subject: [PATCH v2] parisc: Add CPU topology support

Add topology support, including multi-core scheduler support on
PA8800/PA8900 CPUs and enhanced output in /proc/cpuinfo, e.g.
lscpu now reports on a single-socket, dual-core machine:

Architecture:          parisc64
CPU(s):                2
On-line CPU(s) list:   0,1
Thread(s) per core:    1
Core(s) per socket:    2
Socket(s):             1
CPU family:            PA-RISC 2.0
Model name:            PA8800 (Mako)

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index ba7b7dd..bb8ed34 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -31,6 +31,7 @@ config PARISC
 	select GENERIC_PCI_IOMAP
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_SMP_IDLE_THREAD
+	select GENERIC_CPU_DEVICES
 	select GENERIC_STRNCPY_FROM_USER
 	select SYSCTL_ARCH_UNALIGN_ALLOW
 	select SYSCTL_EXCEPTION_TRACE
@@ -275,6 +276,21 @@ config SMP
 
 	  If you don't know what to do here, say N.
 
+config PARISC_CPU_TOPOLOGY
+	bool "Support cpu topology definition"
+	depends on SMP
+	default y
+	help
+	  Support PARISC cpu topology definition.
+
+config SCHED_MC
+	bool "Multi-core scheduler support"
+	depends on PARISC_CPU_TOPOLOGY && PA8X00
+	help
+	  Multi-core scheduler support improves the CPU scheduler's decision
+	  making when dealing with multi-core CPU chips at a cost of slightly
+	  increased overhead in some places. If unsure say N here.
+
 config IRQSTACKS
 	bool "Use separate kernel stacks when processing interrupts"
 	default y
diff --git a/arch/parisc/include/asm/topology.h b/arch/parisc/include/asm/topology.h
new file mode 100644
index 0000000..6f0750c
--- /dev/null
+++ b/arch/parisc/include/asm/topology.h
@@ -0,0 +1,36 @@
+#ifndef _ASM_PARISC_TOPOLOGY_H
+#define _ASM_PARISC_TOPOLOGY_H
+
+#ifdef CONFIG_PARISC_CPU_TOPOLOGY
+
+#include <linux/cpumask.h>
+
+struct cputopo_parisc {
+	int thread_id;
+	int core_id;
+	int socket_id;
+	cpumask_t thread_sibling;
+	cpumask_t core_sibling;
+};
+
+extern struct cputopo_parisc cpu_topology[NR_CPUS];
+
+#define topology_physical_package_id(cpu)	(cpu_topology[cpu].socket_id)
+#define topology_core_id(cpu)		(cpu_topology[cpu].core_id)
+#define topology_core_cpumask(cpu)	(&cpu_topology[cpu].core_sibling)
+#define topology_sibling_cpumask(cpu)	(&cpu_topology[cpu].thread_sibling)
+
+void init_cpu_topology(void);
+void store_cpu_topology(unsigned int cpuid);
+const struct cpumask *cpu_coregroup_mask(int cpu);
+
+#else
+
+static inline void init_cpu_topology(void) { }
+static inline void store_cpu_topology(unsigned int cpuid) { }
+
+#endif
+
+#include <asm-generic/topology.h>
+
+#endif /* _ASM_ARM_TOPOLOGY_H */
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index c4294df..10b1b04 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -8,8 +8,7 @@ obj-y	     	:= cache.o pacache.o setup.o pdt.o traps.o time.o irq.o \
 		   pa7300lc.o syscall.o entry.o sys_parisc.o firmware.o \
 		   ptrace.o hardware.o inventory.o drivers.o \
 		   signal.o hpmc.o real2.o parisc_ksyms.o unaligned.o \
-		   process.o processor.o pdc_cons.o pdc_chassis.o unwind.o \
-		   topology.o
+		   process.o processor.o pdc_cons.o pdc_chassis.o unwind.o
 
 ifdef CONFIG_FUNCTION_TRACER
 # Do not profile debug and lowlevel utilities
@@ -29,5 +28,6 @@ obj-$(CONFIG_AUDIT)	+= audit.o
 obj64-$(CONFIG_AUDIT)	+= compat_audit.o
 # only supported for PCX-W/U in 64-bit mode at the moment
 obj-$(CONFIG_64BIT)	+= perf.o perf_asm.o $(obj64-y)
+obj-$(CONFIG_PARISC_CPU_TOPOLOGY)	+= topology.o
 obj-$(CONFIG_FUNCTION_TRACER)		+= ftrace.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)	+= ftrace.o
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index a778bd3..ad73100 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -184,6 +184,9 @@ static int __init processor_probe(struct parisc_device *dev)
 	p->txn_addr = txn_addr;	/* save CPU IRQ address */
 	p->cpu_num = cpu_info.cpu_num;
 	p->cpu_loc = cpu_info.cpu_loc;
+
+	store_cpu_topology(cpuid);
+
 #ifdef CONFIG_SMP
 	/*
 	** FIXME: review if any other initialization is clobbered
@@ -325,6 +328,8 @@ int init_per_cpu(int cpunum)
 	set_firmware_width();
 	ret = pdc_coproc_cfg(&coproc_cfg);
 
+	store_cpu_topology(cpunum);
+
 	if(ret >= 0 && coproc_cfg.ccr_functional) {
 		mtctl(coproc_cfg.ccr_functional, 10);  /* 10 == Coprocessor Control Reg */
 
@@ -388,6 +393,14 @@ show_cpuinfo (struct seq_file *m, void *v)
 				 boot_cpu_data.cpu_hz / 1000000,
 				 boot_cpu_data.cpu_hz % 1000000  );
 
+#ifdef CONFIG_PARISC_CPU_TOPOLOGY
+		seq_printf(m, "physical id\t: %d\n",
+				topology_physical_package_id(cpu));
+		seq_printf(m, "siblings\t: %d\n",
+				cpumask_weight(topology_core_cpumask(cpu)));
+		seq_printf(m, "core id\t\t: %d\n", topology_core_id(cpu));
+#endif
+
 		seq_printf(m, "capabilities\t:");
 		if (boot_cpu_data.pdc.capabilities & PDC_MODEL_OS32)
 			seq_puts(m, " os32");
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index a31e91c..fd751b9 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -408,6 +408,8 @@ void __init start_parisc(void)
 
 	cpunum = smp_processor_id();
 
+	init_cpu_topology();
+
 	set_firmware_width_unlocked();
 
 	ret = pdc_coproc_cfg_unlocked(&coproc_cfg);
diff --git a/arch/parisc/kernel/topology.c b/arch/parisc/kernel/topology.c
index f515938..0a10e4d 100644
--- a/arch/parisc/kernel/topology.c
+++ b/arch/parisc/kernel/topology.c
@@ -1,37 +1,142 @@
 /*
- * arch/parisc/kernel/topology.c - Populate sysfs with topology information
+ * arch/parisc/kernel/topology.c
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * Copyright (C) 2017 Helge Deller <deller@gmx.de>
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT.  See the GNU General Public License for more
- * details.
+ * based on arch/arm/kernel/topology.c
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/cpu.h>
-#include <linux/cache.h>
+#include <linux/percpu.h>
+#include <linux/sched.h>
+#include <linux/sched/topology.h>
 
-static DEFINE_PER_CPU(struct cpu, cpu_devices);
+#include <asm/topology.h>
 
-static int __init topology_init(void)
+ /*
+  * cpu topology table
+  */
+struct cputopo_parisc cpu_topology[NR_CPUS] __read_mostly;
+EXPORT_SYMBOL_GPL(cpu_topology);
+
+const struct cpumask *cpu_coregroup_mask(int cpu)
 {
-	int num;
+	return &cpu_topology[cpu].core_sibling;
+}
+
+static void update_siblings_masks(unsigned int cpuid)
+{
+	struct cputopo_parisc *cpu_topo, *cpuid_topo = &cpu_topology[cpuid];
+	int cpu;
+
+	/* update core and thread sibling masks */
+	for_each_possible_cpu(cpu) {
+		cpu_topo = &cpu_topology[cpu];
+
+		if (cpuid_topo->socket_id != cpu_topo->socket_id)
+			continue;
+
+		cpumask_set_cpu(cpuid, &cpu_topo->core_sibling);
+		if (cpu != cpuid)
+			cpumask_set_cpu(cpu, &cpuid_topo->core_sibling);
+
+		if (cpuid_topo->core_id != cpu_topo->core_id)
+			continue;
+
+		cpumask_set_cpu(cpuid, &cpu_topo->thread_sibling);
+		if (cpu != cpuid)
+			cpumask_set_cpu(cpu, &cpuid_topo->thread_sibling);
+	}
+	smp_wmb();
+}
+
+static int dualcores_found __initdata;
+
+/*
+ * store_cpu_topology is called at boot when only one cpu is running
+ * and with the mutex cpu_hotplug.lock locked, when several cpus have booted,
+ * which prevents simultaneous write access to cpu_topology array
+ */
+void __init store_cpu_topology(unsigned int cpuid)
+{
+	struct cputopo_parisc *cpuid_topo = &cpu_topology[cpuid];
+	struct cpuinfo_parisc *p;
+	int max_socket = -1;
+	unsigned long cpu;
+
+	/* If the cpu topology has been already set, just return */
+	if (cpuid_topo->core_id != -1)
+		return;
 
-	for_each_present_cpu(num) {
-		register_cpu(&per_cpu(cpu_devices, num), num);
+	/* create cpu topology mapping */
+	cpuid_topo->thread_id = -1;
+	cpuid_topo->core_id = 0;
+
+	p = &per_cpu(cpu_data, cpuid);
+	for_each_online_cpu(cpu) {
+		const struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
+
+		if (cpu == cpuid) /* ignore current cpu */
+			continue;
+
+		if (cpuinfo->cpu_loc == p->cpu_loc) {
+			cpuid_topo->core_id = cpu_topology[cpu].core_id;
+			if (p->cpu_loc) {
+				cpuid_topo->core_id++;
+				cpuid_topo->socket_id = cpu_topology[cpu].socket_id;
+				dualcores_found = 1;
+				continue;
+			}
+		}
+
+		if (cpuid_topo->socket_id == -1)
+			max_socket = max(max_socket, cpu_topology[cpu].socket_id);
 	}
-	return 0;
+
+	if (cpuid_topo->socket_id == -1)
+		cpuid_topo->socket_id = max_socket + 1;
+
+	update_siblings_masks(cpuid);
+
+	pr_info("CPU%u: thread %d, cpu %d, socket %d\n",
+		cpuid, cpu_topology[cpuid].thread_id,
+		cpu_topology[cpuid].core_id,
+		cpu_topology[cpuid].socket_id);
 }
 
-subsys_initcall(topology_init);
+static struct sched_domain_topology_level parisc_mc_topology[] = {
+#ifdef CONFIG_SCHED_MC
+	{ cpu_coregroup_mask, cpu_core_flags, SD_INIT_NAME(MC) },
+#endif
+
+	{ cpu_cpu_mask, SD_INIT_NAME(DIE) },
+	{ NULL, },
+};
+
+/*
+ * init_cpu_topology is called at boot when only one cpu is running
+ * which prevent simultaneous write access to cpu_topology array
+ */
+void __init init_cpu_topology(void)
+{
+	unsigned int cpu;
+
+	/* init core mask and capacity */
+	for_each_possible_cpu(cpu) {
+		struct cputopo_parisc *cpu_topo = &(cpu_topology[cpu]);
+
+		cpu_topo->thread_id = -1;
+		cpu_topo->core_id =  -1;
+		cpu_topo->socket_id = -1;
+		cpumask_clear(&cpu_topo->core_sibling);
+		cpumask_clear(&cpu_topo->thread_sibling);
+	}
+	smp_wmb();
+
+	/* Set scheduler topology descriptor */
+	if (dualcores_found)
+		set_sched_topology(parisc_mc_topology);
+}
--
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Subject: Re: [RFC][PATCH v2 0/7] printk/ia64/ppc64/parisc64: let's deprecate
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        Paul Mackerras <paulus@samba.org>,
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* Sergey Senozhatsky <sergey.senozhatsky@gmail.com> wrote (on 2017-09-20 16=
:29:02 +0000):

>         Hello
>=20
>         RFC
>=20
>         On some arches C function pointers are indirect and point to
> a function descriptor, which contains the actual pointer to the code.
> This mostly doesn't matter, except for cases when people want to print
> out function pointers in symbolic format, because the usual '%pS/%ps'
> does not work on those arches as expected. That's the reason why we
> have '%pF/%pf', but since it's here because of a subtle ABI detail
> specific to some arches (ppc64/ia64/parisc64) it's easy to misuse
> '%pF/%pf' and '%pS/%ps' (see [1], for example).
>=20
>         This patch set attempts to move ia64/ppc64/parisc64 C function
> pointer ABI details out of printk() to arch code. Function dereference
> code now checks if a pointer belongs to a .opd ELF section and dereferenc=
es
> that pointer only if it does. The kernel and modules have their own .opd
> sections that's why I use two different ARCH functions: for kernel and
> for module pointer dereference.
>=20
>         I planned to remove dereference_function_descriptor() entirely,
> but then I discovered a bunch other uses cases (kgdbts, init/main.c,
> extable, etc.), so I decided to keep dereference_function_descriptor()
> around because the main point of this patch set is to deprecate %pF/%pf.
> But at the same time, I think I can go further and handle both kernel
> and module descriptor dereference in dereference_function_descriptor().
> We need a module pointer for module .opd check, so that will come at an
> extra cost of module lookup (may be there will some other issues along
> the way, haven't checked it).
>=20
> Right now we've got:
>=20
> - dereference_function_descriptor(addr)
>         a generic (old) function. it simply attempts to dereference
>         whatever pointer we give it.
>=20
> - dereference_kernel_function_descriptor(addr)
>         dereferences a kernel pointer if it's within the kernel's .opd
>         section.
>=20
> - dereference_module_function_descriptor(module, addr)
>         dereference a module pointer if it's within the module's .opd
>         section.
>=20
>=20
> *** A BIG NOTE ***
>         I don't own ia64/ppc64/parisc64 hardware, so the patches are not
>         tested. Sorry about that!

Tested patch series on ppc64 sucessfully.

You may add tested by to the series.

Tested-by: Santosh Sivaraj <santosh@fossix.org>

Thanks,
Santosh

>=20
> Another note:
>         I need to check what is BPF symbol lookup and do we need to
>         do any dereference there.
>=20
> v2:
> -- convert dereference_function_descriptor() to unsigned long
> -- fix kernel descriptor range checks (Helge)
> -- fix parisc module descriptor range check (Helge)
> -- fix ppc64 module range check
> -- add checkpatch patch
>=20
>=20
> Sergey Senozhatsky (7):
>   switch dereference_function_descriptor() to `unsigned long'
>   sections: split dereference_function_descriptor()
>   ia64: Add .opd based function descriptor dereference
>   powerpc64: Add .opd based function descriptor dereference
>   parisc64: Add .opd based function descriptor dereference
>   symbol lookup: use new kernel and module dereference functions
>   checkpatch: add pF/pf deprecation warning
>=20
>  Documentation/printk-formats.txt          | 15 +++++----------
>  arch/ia64/include/asm/sections.h          | 16 ++++++++++++----
>  arch/ia64/kernel/module.c                 | 13 +++++++++++++
>  arch/ia64/kernel/vmlinux.lds.S            |  2 ++
>  arch/parisc/boot/compressed/vmlinux.lds.S |  2 ++
>  arch/parisc/include/asm/sections.h        |  4 +++-
>  arch/parisc/kernel/module.c               | 17 +++++++++++++++++
>  arch/parisc/kernel/process.c              | 15 ++++++++++++---
>  arch/parisc/kernel/vmlinux.lds.S          |  2 ++
>  arch/parisc/mm/init.c                     |  4 ++--
>  arch/powerpc/include/asm/module.h         |  3 +++
>  arch/powerpc/include/asm/sections.h       | 17 ++++++++++++++---
>  arch/powerpc/kernel/module_64.c           | 16 ++++++++++++++++
>  arch/powerpc/kernel/vmlinux.lds.S         |  2 ++
>  drivers/misc/kgdbts.c                     |  2 +-
>  include/asm-generic/sections.h            |  8 ++++++--
>  include/linux/moduleloader.h              |  4 ++++
>  init/main.c                               |  2 +-
>  kernel/extable.c                          |  2 +-
>  kernel/kallsyms.c                         |  1 +
>  kernel/module.c                           |  9 ++++++++-
>  lib/vsprintf.c                            |  5 +----
>  scripts/checkpatch.pl                     |  6 ++++--
>  23 files changed, 132 insertions(+), 35 deletions(-)

--=20

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From - Thu Nov 08 21:40:24 2018
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From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [RFC][PATCH v2 0/7] printk/ia64/ppc64/parisc64: let's deprecate
 %pF/%pf printk specifiers
Date: Fri, 22 Sep 2017 17:00:23 +0900
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To: Santosh Sivaraj <santosh@fossix.org>
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Xref: news.gmane.org gmane.linux.ports.ia64:28151 gmane.linux.ports.parisc:27853 gmane.linux.ports.ppc64.devel:148232 gmane.linux.kernel:2575572
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On (09/22/17 11:04), Santosh Sivaraj wrote:
[..]
> > *** A BIG NOTE ***
> >         I don't own ia64/ppc64/parisc64 hardware, so the patches are not
> >         tested. Sorry about that!
> 
> Tested patch series on ppc64 sucessfully.
> 
> You may add tested by to the series.
> 
> Tested-by: Santosh Sivaraj <santosh@fossix.org>


thanks!

	-ss
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From - Thu Nov 08 21:40:24 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: RE: [RFC][PATCH v2 0/7] printk/ia64/ppc64/parisc64: let's deprecate
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To: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
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Tested patch series on ia64 successfully.

Tested-by: Tony Luck <tony.luck@intel.com>

After this goes upstream, you should submit a patch to get rid of
all uses of %pF (70 instances in 35 files) and %pf (63 in 34)

Perhaps break the patch by top-level directory (e.g. get all the %pF
and %pF in the 17 files under drivers/ in one patch).

-Tony
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From - Thu Nov 08 21:40:24 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Unbreak bootloader due to gcc-7 optimizations
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gcc-7 optimizes the byte-wise accesses of get_unaligned_le32() into
word-wise accesses if the 32-bit integer output_len is declared as
external. This panics then the bootloader since we don't have the
unaligned access fault trap handler installed during boot time.

Avoid this optimization by declaring output_len as byte-aligned and thus
unbreak the bootloader code.

Additionally, compile the boot code optimized for size.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/boot/compressed/Makefile b/arch/parisc/boot/compressed/Makefile
index 5450a11c9d10..7d7e594bda36 100644
--- a/arch/parisc/boot/compressed/Makefile
+++ b/arch/parisc/boot/compressed/Makefile
@@ -15,7 +15,7 @@ targets += misc.o piggy.o sizes.h head.o real2.o firmware.o
 KBUILD_CFLAGS := -D__KERNEL__ -O2 -DBOOTLOADER
 KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
 KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks
-KBUILD_CFLAGS += -fno-PIE -mno-space-regs -mdisable-fpregs
+KBUILD_CFLAGS += -fno-PIE -mno-space-regs -mdisable-fpregs -Os
 ifndef CONFIG_64BIT
 KBUILD_CFLAGS += -mfast-indirect-calls
 endif
diff --git a/arch/parisc/boot/compressed/misc.c b/arch/parisc/boot/compressed/misc.c
index 13a4bf9ac4da..a32325914429 100644
--- a/arch/parisc/boot/compressed/misc.c
+++ b/arch/parisc/boot/compressed/misc.c
@@ -24,7 +26,8 @@
 /* Symbols defined by linker scripts */
 extern char input_data[];
 extern int input_len;
-extern __le32 output_len;	/* at unaligned address, little-endian */
+/* output_len is inserted by the linker possibly at an unaligned address */
+extern __le32 output_len __aligned(1);
 extern char _text, _end;
 extern char _bss, _ebss;
 extern char _startcode_end;
--
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From - Thu Nov 08 21:40:25 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Reintroduce option to gzip-compress the kernel
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By adding the feature to build the kernel as self-extracting
executeable, the possibility to simply compress the kernel with gzip was
lost.

This patch now reintroduces this possibilty again and leaves it up to
the user to decide how the kernel should be built.

The palo bootloader is able to natively load both formats.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index bb8ed34024ef..cce21a159fe7 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -258,6 +258,18 @@ config PARISC_PAGE_SIZE_64KB
 
 endchoice
 
+config PARISC_SELF_EXTRACT
+	bool "Build kernel as self-extracting executable"
+	default y
+	help
+	  Say Y if you want to build the parisc kernel as a kind of
+	  self-extracting executable.
+
+	  If you say N here, the kernel will be compressed with gzip
+	  which can be loaded by the palo bootloader directly too.
+
+	  If you don't know what to do here, say Y.
+
 config SMP
 	bool "Symmetric multi-processing support"
 	---help---
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 58fae5d2449d..01946ebaff72 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -129,8 +129,13 @@ Image: vmlinux
 bzImage: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 
+ifdef CONFIG_PARISC_SELF_EXTRACT
 vmlinuz: bzImage
 	$(OBJCOPY) $(boot)/bzImage $@
+else
+vmlinuz: vmlinux
+	@gzip -cf -9 $< > $@
+endif
 
 install:
 	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
--
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From - Thu Nov 08 21:40:25 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc architecture fixes for v4.14-rc2
Date: Sat, 23 Sep 2017 10:19:14 +0200
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Hi Linus,

please pull fixes for the parisc architecture for kernel 4.14-rc2 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.14-2

Changelog:

- Unbreak parisc bootloader by avoiding a gcc-7 optimization to convert
  multiple byte-accesses into one word-access.

- Add missing HWPOISON page fault handler code. I completely missed that when I
  added HWPOISON support during this merge window and it only showed up now
  with the madvise07 LTP test case.

- Fix backtrace unwinding to stop when stack start has been reached.

- Issue warning if initrd has been loaded into memory regions with broken RAM
  modules.

- Fix HPMC handler (parisc hardware fault handler) to comply with architecture
  specification.

- Avoid compiler warnings about too large frame sizes.

- Minor init-section fixes.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (10):
      parisc: Fix too large frame size warnings
      parisc: Stop unwinding at start of stack
      parisc: Move start_parisc() into init section
      parisc: Add wrapper for pdc_instr() firmware function
      parisc: Add PDCE_CHECK instruction to HPMC handler
      parisc: Check if initrd was loaded into broken RAM
      parisc: Move init_per_cpu() into init section
      parisc: Add HWPOISON page fault handler code
      parisc: Reintroduce option to gzip-compress the kernel
      parisc: Unbreak bootloader due to gcc-7 optimizations

 arch/parisc/Kconfig                  | 12 ++++++++++++
 arch/parisc/Makefile                 |  5 +++++
 arch/parisc/boot/compressed/Makefile |  2 +-
 arch/parisc/boot/compressed/misc.c   |  3 ++-
 arch/parisc/include/asm/pdc.h        |  1 +
 arch/parisc/include/asm/smp.h        |  1 +
 arch/parisc/kernel/firmware.c        | 20 ++++++++++++++++++++
 arch/parisc/kernel/pdt.c             |  9 +++++++++
 arch/parisc/kernel/processor.c       |  2 +-
 arch/parisc/kernel/setup.c           |  6 +++---
 arch/parisc/kernel/smp.c             |  3 +--
 arch/parisc/kernel/traps.c           | 10 +++++++++-
 arch/parisc/kernel/unwind.c          | 12 ++++++++++++
 arch/parisc/mm/fault.c               | 33 +++++++++++++++++++++++++++++----
 lib/Kconfig.debug                    |  3 ++-
 15 files changed, 108 insertions(+), 14 deletions(-)

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From: Mr Soumaila Sorgho <nicolemarois7410@gmail.com>
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-- 
Greetings From Mr. Soumaila Sorgho

	I have a Mutual/Beneficial Business Project that would be beneficial
to you. I only have two questions to ask of you, if you are
interested.

1. Can you handle this project?
2. Can I give you this trust?

Please note that the deal requires high level of maturity, honesty and
secrecy. This will involve moving some money from my office, on trust
to your hands or bank account. Also note that i will do everything to
make sure that the money is moved as a purely legitimate fund, so you
will not be exposed to any risk.

I request for your full co-operation. I will give you details and
procedure when I receive your reply, to commence this transaction, I
require you to immediately indicate your interest by a return reply. I
will be waiting for your response in a timely manner.

Contact  Email: soumailasorgho@yandex.com
Best Regard,
Mr. Soumaila Sorgho
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__cmpxchg_u64 is built and used outside CONFIG_64BIT and thus needs
to be exported. This fixes the following build error seen when building
parisc:allmodconfig.

ERROR: "__cmpxchg_u64" [drivers/net/ethernet/intel/i40e/i40e.ko] undefined!

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/parisc/kernel/parisc_ksyms.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index c6d6272a934f..7baa2265d439 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -35,12 +35,12 @@ EXPORT_SYMBOL(memset);
 EXPORT_SYMBOL(__xchg8);
 EXPORT_SYMBOL(__xchg32);
 EXPORT_SYMBOL(__cmpxchg_u32);
+EXPORT_SYMBOL(__cmpxchg_u64);
 #ifdef CONFIG_SMP
 EXPORT_SYMBOL(__atomic_hash);
 #endif
 #ifdef CONFIG_64BIT
 EXPORT_SYMBOL(__xchg64);
-EXPORT_SYMBOL(__cmpxchg_u64);
 #endif
 
 #include <linux/uaccess.h>
-- 
2.7.4



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To: "Luck, Tony" <tony.luck@intel.com>
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On (09/22/17 16:48), Luck, Tony wrote:
[..]
> Tested patch series on ia64 successfully.
> 
> Tested-by: Tony Luck <tony.luck@intel.com>

thanks!

> After this goes upstream, you should submit a patch to get rid of
> all uses of %pF (70 instances in 35 files) and %pf (63 in 34)
> 
> Perhaps break the patch by top-level directory (e.g. get all the %pF
> and %pF in the 17 files under drivers/ in one patch).

frankly, I was going to have some sort of a lazy deprecation process:
didn't plan to send out a patch set that would hunt down all pf/pF-s.
hm...


speaking of upstream, any objections if this patch set will go through
the printk tree, in one piece?

I'll wait for several more days and then resend v3 with updated
Documentation and tweaked checkpatch warning message.

	-ss


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On 18.9.2017 20:05, Babu Moger wrote:
>=20
> On 9/18/2017 12:49 PM, Michal Simek wrote:
>> On 18.9.2017 18:53, Babu Moger wrote:
>>> Fix the default for microblaze. Michal Simek mentioned default for
>>> microblaze should be CPU_LITTLE_ENDIAN.
>>>
>>> Fixes : commit 206d3642d8ee ("arch/microblaze: add choice for endiann=
ess
>>> =C2=A0=C2=A0=C2=A0=C2=A0and update Makefile")
>>>
>>> Signed-off-by: Babu Moger <babu.moger@oracle.com>
>>> Cc: Michal Simek <monstr@monstr.eu>
>>> ---
>>> =C2=A0 arch/microblaze/Kconfig |=C2=A0=C2=A0=C2=A0 2 +-
>>> =C2=A0 1 files changed, 1 insertions(+), 1 deletions(-)
>>>
>>> diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
>>> index 9d26abd..4f798aa 100644
>>> --- a/arch/microblaze/Kconfig
>>> +++ b/arch/microblaze/Kconfig
>>> @@ -39,7 +39,7 @@ config MICROBLAZE
>>> =C2=A0 # Endianness selection
>>> =C2=A0 choice
>>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 prompt "Endianness selection"
>>> -=C2=A0=C2=A0=C2=A0 default CPU_BIG_ENDIAN
>>> +=C2=A0=C2=A0=C2=A0 default CPU_LITTLE_ENDIAN
>>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 help
>>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 microblaze architectures c=
an be configured for either little or
>>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 big endian formats. Be sur=
e to select the appropriate mode.
>>>
>> Acked-by: Michal Simek <michal.simek@xilinx.com>
> Thanks.
>> If you want me to take this through my microblaze tree please let me
>> know.
> Sure. Thanks

I can't see this in linux-next yet that's why pplied this one to mb/next
to be the part of my pull request.

Thanks,
Michal

--=20
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP SoCs



--NEs71qLvUmTUlacMA9tBHJ5w1REDB6DTl--

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Decrease thread and stack size back to 16kb
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Revert commit 8f8201dfed91 ("parisc: Increase thread and stack size to 32kb").

Starting with kernel 4.11 the thread and irq stacks on parisc randomly overflow
the default size of 16k. The reason why the stack usage suddenly grew was
unknown.  Now the stack sizes seem to be back at their usual 8-12kb, so we can
revert the temporary workaround of commit 8f8201dfed91.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index bc208136bbb2..88fe0aad4390 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -34,7 +34,7 @@ struct thread_info {
 
 /* thread information allocation */
 
-#define THREAD_SIZE_ORDER	3 /* PA-RISC requires at least 32k stack */
+#define THREAD_SIZE_ORDER	2 /* PA-RISC requires at least 16k stack */
 /* Be sure to hunt all references to this down when you change the size of
  * the kernel stack */
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_SIZE_ORDER)
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 0ca254085a66..5404e4086cb9 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -380,7 +380,7 @@ static inline int eirr_to_irq(unsigned long eirr)
 /*
  * IRQ STACK - used for irq handler
  */
-#define IRQ_STACK_SIZE      (4096 << 3) /* 32k irq stack size */
+#define IRQ_STACK_SIZE      (4096 << 2) /* 16k irq stack size */
 
 union irq_stack_union {
 	unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
--
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> speaking of upstream, any objections if this patch set will go through
> the printk tree, in one piece?

Seems to be a better idea than trying to coordinate pulls from three
separate "arch/"  trees.  Fine with me.

-Tony


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On 25.09.2017 18:29, Luck, Tony wrote:
>> speaking of upstream, any objections if this patch set will go through
>> the printk tree, in one piece?

Fine with me too.

Helge
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH][RFC] parisc: Convert MAP_TYPE to cover 4 bits on parisc
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On parisc we want to be as much as possible compatible to the major
architectures like x86. Those architectures have MAP_TYPE defined as 0x0f which
covers MAP_SHARED and MAP_PRIVATE and leaves two more bits unused.

In contrast, on parisc we have MAP_TYPE defined to 0x03 which covers MAP_SHARED
and MAP_PRIVATE only. But we don't have the 2 bits free as x86.

Usually that's not a problem, but during the discussions for pmem+dax support
the idea came up to use the two remaining bits of MAP_TYPE (on x86 and others)
for the new MAP_DIRECT and MAP_SYNC flags. One requirement is, that an old
kernel should correctly handle MAP_DIRECT and MAP_SYNC and fail on those if
set. This only works if MAP_TYPE has 4 bits.

That said, this patch adds the two missing bits in order to gain compatibility
to x86 and to be maybe prepared if at some point in future we will add pmem+dax
support (or any other use case as it's done for x86). The patch as it is now
will not break any old kernel, and if those bits will be used at some point in
future, it's a requirement that users will need to run a kernel with this patch
installed.

Link: http://lkml.org/lkml/2017/8/25/502
Link: http://lkml.org/r/4de21e8d-5e10-ec40-c731-0c079953cf48@gmx.de
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 775b5d5e41a1..71b0d58dcacd 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -11,9 +11,11 @@
 
 #define MAP_SHARED	0x01		/* Share changes */
 #define MAP_PRIVATE	0x02		/* Changes are private */
-#define MAP_TYPE	0x03		/* Mask for type of mapping */
+#define MAP_TYPE	(MAP_SHARED|MAP_PRIVATE|MAP_RESRVD1|MAP_RESRVD2) /* Mask for type of mapping */
 #define MAP_FIXED	0x04		/* Interpret addr exactly */
+#define MAP_RESRVD1	0x08		/* reserved for 3rd bit of MAP_TYPE */
 #define MAP_ANONYMOUS	0x10		/* don't use a file */
+#define MAP_RESRVD2	0x20		/* reserved for 4th bit of MAP_TYPE */
 
 #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
 #define MAP_EXECUTABLE	0x1000		/* mark it as an executable */
--
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To: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
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Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> writes:

> On (09/22/17 16:48), Luck, Tony wrote:
> [..]
>> Tested patch series on ia64 successfully.
>> 
>> Tested-by: Tony Luck <tony.luck@intel.com>
>
> thanks!
>
>> After this goes upstream, you should submit a patch to get rid of
>> all uses of %pF (70 instances in 35 files) and %pf (63 in 34)
>> 
>> Perhaps break the patch by top-level directory (e.g. get all the %pF
>> and %pF in the 17 files under drivers/ in one patch).
>
> frankly, I was going to have some sort of a lazy deprecation process:
> didn't plan to send out a patch set that would hunt down all pf/pF-s.
> hm...

That never works though, we have lots of cruft left over from times when
that's happened and the conversion never quite got finished.

At least if you send out the patches to do the removal they might
eventually get merged.

> speaking of upstream, any objections if this patch set will go through
> the printk tree, in one piece?

Do you mind putting it in a topic branch (based on rc2) and then merge
that into the printk tree? That way I can merge the topic branch iff
there are conflicts later down the line towards 4.15.

cheers
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Santosh Sivaraj <santosh@fossix.org> writes:

> * Sergey Senozhatsky <sergey.senozhatsky@gmail.com> wrote (on 2017-09-20 16:29:02 +0000):
>
>>         Hello
>> 
>>         RFC
>> 
>>         On some arches C function pointers are indirect and point to
>> a function descriptor, which contains the actual pointer to the code.
>> This mostly doesn't matter, except for cases when people want to print
>> out function pointers in symbolic format, because the usual '%pS/%ps'
>> does not work on those arches as expected. That's the reason why we
>> have '%pF/%pf', but since it's here because of a subtle ABI detail
>> specific to some arches (ppc64/ia64/parisc64) it's easy to misuse
>> '%pF/%pf' and '%pS/%ps' (see [1], for example).
>> 
>>         This patch set attempts to move ia64/ppc64/parisc64 C function
>> pointer ABI details out of printk() to arch code. Function dereference
>> code now checks if a pointer belongs to a .opd ELF section and dereferences
>> that pointer only if it does. The kernel and modules have their own .opd
>> sections that's why I use two different ARCH functions: for kernel and
>> for module pointer dereference.
>> 
>>         I planned to remove dereference_function_descriptor() entirely,
>> but then I discovered a bunch other uses cases (kgdbts, init/main.c,
>> extable, etc.), so I decided to keep dereference_function_descriptor()
>> around because the main point of this patch set is to deprecate %pF/%pf.
>> But at the same time, I think I can go further and handle both kernel
>> and module descriptor dereference in dereference_function_descriptor().
>> We need a module pointer for module .opd check, so that will come at an
>> extra cost of module lookup (may be there will some other issues along
>> the way, haven't checked it).
>> 
>> Right now we've got:
>> 
>> - dereference_function_descriptor(addr)
>>         a generic (old) function. it simply attempts to dereference
>>         whatever pointer we give it.
>> 
>> - dereference_kernel_function_descriptor(addr)
>>         dereferences a kernel pointer if it's within the kernel's .opd
>>         section.
>> 
>> - dereference_module_function_descriptor(module, addr)
>>         dereference a module pointer if it's within the module's .opd
>>         section.
>> 
>> 
>> *** A BIG NOTE ***
>>         I don't own ia64/ppc64/parisc64 hardware, so the patches are not
>>         tested. Sorry about that!
>
> Tested patch series on ppc64 sucessfully.
>
> You may add tested by to the series.
>
> Tested-by: Santosh Sivaraj <santosh@fossix.org>

Thanks Santosh.

I also gave it a quick spin. I'll give you an ack for the powerpc changes.

Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)


Thanks for cleaning this up Sergey.

cheers
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Cc: Santosh Sivaraj <santosh@fossix.org>,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        James Bottomley <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>, Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
To: Michael Ellerman <mpe@ellerman.id.au>
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Xref: news.gmane.org gmane.linux.ports.parisc:27868 gmane.linux.ports.ia64:28168 gmane.linux.ports.ppc64.devel:148360 gmane.linux.kernel:2579627
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On (09/27/17 16:26), Michael Ellerman wrote:
[..]
> > Tested-by: Santosh Sivaraj <santosh@fossix.org>
> 
> Thanks Santosh.
> 
> I also gave it a quick spin. I'll give you an ack for the powerpc changes.
> 
> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
> 
> 
> Thanks for cleaning this up Sergey.

thanks!

	-ss
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From - Thu Nov 08 21:40:26 2018
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Reply Urgently
Attn: Sir/Madam
I am MRS.PRECIOUS JEREMIAH Thomas James Zida the personal resident Attorney
here in Burkina Faso to Late Mr. Muammar Muhammad Abu Minyar
al-Gaddafi of Libya c. 1942 =E2=80=93 20 October 2011.

Late Mr. Muammar Muhammad Abu Minyar al-Gaddafi c. 1942 =E2=80=93 20 Octobe=
r
2011, commonly known as Colonel Gaddafi, was a Libyan former head of
state, revolutionary and a politician, who died on 20 October 2011,
was my client here in Burkina Faso Africa.

My client Late Mr. Muammar Muhammad Abu Minyar al-Gaddafi c. 1942 =E2=80=93=
 20
October 2011, was having a deposit sum of {thirty million four Hundred
thousand united state dollars} only ($30.4M USD) with a security
finance firm affiliated with African development bank here in Burkina
Faso.

With the above explanation=E2=80=99s I want to move this money from Burkina
Faso to your country, affidavit on your name, but note that this is a
deal between me and you and should not be related to anybody until the
deal is over for security reasons, please if interested reply as soon
as possible.Reply To This E-mail Address preciousjeremiah09@gmail.com
Thanks,
MRS.PRECIOUS JEREMIAH Thomas James Zida
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From: Mohammad Ouattara <mohammadouattara27@gmail.com>
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Subject: Assalamu`Alaikum.
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Greetings from Dr. mohammad ouattara.

Assalamu`Alaikum.

My Name is Dr. mohammad ouattara, I am a banker by profession. I'm
from Ouagadougou, Burkina Faso, West Africa. My reason for contacting
you is to transfer an abandoned $14.6M to your account.

The owner of this fund died since 2004 with his Next Of Kin. I want to
present you to the bank as the Next of Kin/beneficiary of this fund.

Further details of the transaction shall be forwarded to you as soon
as I receive your return mail indicating your interest.

1) YOUR FULL NAME...............................
(2) YOUR AGE AND SEX............................
(3) YOUR CONTACT ADDRESS..................
(4) YOUR PRIVATE PHONE N0..........
(5) FAX NUMBER..............
(6) YOUR COUNTRY OF ORIGIN..................
(7) YOUR OCCUPATION.........................

Have a great day,
Dr. mohammad ouattara.
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Cc: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
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	Hello


	Petr, could you please pick up the series?

==========================================================================

	On some arches C function pointers are indirect and point to
a function descriptor, which contains the actual pointer to the code.
This mostly doesn't matter, except for cases when people want to print
out function pointers in symbolic format, because the usual '%pS/%ps'
does not work on those arches as expected. That's the reason why we
have '%pF/%pf', but since it's here because of a subtle ABI detail
specific to some arches (ppc64/ia64/parisc64) it's easy to misuse
'%pF/%pf' and '%pS/%ps' (see [1], for example).

	This patch set attempts to move ia64/ppc64/parisc64 C function
pointer ABI details out of printk() to arch code. Function dereference
code now checks if a pointer belongs to a .opd ELF section and dereferences
that pointer only if it does. The kernel and modules have their own .opd
sections that's why I use two different ARCH functions: for kernel and
for module pointer dereference.

	I planned to remove dereference_function_descriptor() entirely,
but then I discovered a bunch other uses cases (kgdbts, init/main.c,
extable, etc.), so I decided to keep dereference_function_descriptor()
around because the main point of this patch set is to deprecate %pF/%pf.
But at the same time, I think I can go further and handle both kernel
and module descriptor dereference in dereference_function_descriptor().
We need a module pointer for module .opd check, so that will come at an
extra cost of module lookup (may be there will some other issues along
the way, haven't checked it).

Right now we've got:

- dereference_function_descriptor(addr)
        a generic (old) function. it simply attempts to dereference
        whatever pointer we give it.

- dereference_kernel_function_descriptor(addr)
        dereferences a kernel pointer if it's within the kernel's .opd
        section.

- dereference_module_function_descriptor(module, addr)
        dereference a module pointer if it's within the module's .opd
        section.

v3:
-- picked up ACKs and Tested-by
-- tweaked checkpatch warning (Joe)
-- updated Documentation

v2:
-- convert dereference_function_descriptor() to unsigned long
-- fix kernel descriptor range checks (Helge)
-- fix parisc module descriptor range check (Helge)
-- fix ppc64 module range check
-- add checkpatch patch

Sergey Senozhatsky (7):
  switch dereference_function_descriptor() to `unsigned long'
  sections: split dereference_function_descriptor()
  ia64: Add .opd based function descriptor dereference
  powerpc64: Add .opd based function descriptor dereference
  parisc64: Add .opd based function descriptor dereference
  symbol lookup: use new kernel and module dereference functions
  checkpatch: add pF/pf deprecation warning

 Documentation/printk-formats.txt          | 20 ++++++++++----------
 arch/ia64/include/asm/sections.h          | 16 ++++++++++++----
 arch/ia64/kernel/module.c                 | 13 +++++++++++++
 arch/ia64/kernel/vmlinux.lds.S            |  2 ++
 arch/parisc/boot/compressed/vmlinux.lds.S |  2 ++
 arch/parisc/include/asm/sections.h        |  4 +++-
 arch/parisc/kernel/module.c               | 17 +++++++++++++++++
 arch/parisc/kernel/process.c              | 15 ++++++++++++---
 arch/parisc/kernel/vmlinux.lds.S          |  2 ++
 arch/parisc/mm/init.c                     |  4 ++--
 arch/powerpc/include/asm/module.h         |  3 +++
 arch/powerpc/include/asm/sections.h       | 17 ++++++++++++++---
 arch/powerpc/kernel/module_64.c           | 16 ++++++++++++++++
 arch/powerpc/kernel/vmlinux.lds.S         |  2 ++
 drivers/misc/kgdbts.c                     |  2 +-
 include/asm-generic/sections.h            |  8 ++++++--
 include/linux/moduleloader.h              |  4 ++++
 init/main.c                               |  2 +-
 kernel/extable.c                          |  2 +-
 kernel/kallsyms.c                         |  1 +
 kernel/module.c                           |  9 ++++++++-
 lib/vsprintf.c                            |  5 +----
 scripts/checkpatch.pl                     | 11 +++++++++--
 23 files changed, 142 insertions(+), 35 deletions(-)

-- 
2.14.2

--
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCHv3 1/7] switch dereference_function_descriptor() to `unsigned long'
Date: Sat, 30 Sep 2017 11:53:13 +0900
Lines: 202
Approved: news@gmane.org
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Cc: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
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Xref: news.gmane.org gmane.linux.kernel:2581048 gmane.linux.ports.ia64:28178 gmane.linux.ports.parisc:27872 gmane.linux.ports.ppc64.devel:148423
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2581048>

Convert dereference_function_descriptor() to accept and return
`unsigned long'. There will be two new ARCH function for kernel
and module function pointer dereference, which will work with
`unsigned long', so the patch unifies interfaces.

Besides, dereference_function_descriptor() mostly work with
`unsigned long':

drivers/misc/kgdbts.c:
addr = (unsigned long) dereference_function_descriptor((void *)addr);

init/main.c:
addr = (unsigned long) dereference_function_descriptor(fn);

kernel/extable.c:
addr = (unsigned long) dereference_function_descriptor(ptr);

kernel/module.c:
unsigned long a = (unsigned long)dereference_function_descriptor(addr);

Convert dereference_function_descriptor() users tree-wide.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Helge Deller <deller@gmx.de> # parisc64
Tested-by: Santosh Sivaraj <santosh@fossix.org> # powerpc64
Acked-by: Michael Ellerman <mpe@ellerman.id.au> # powerpc64
Tested-by: Tony Luck <tony.luck@intel.com> # ia64
---
 arch/ia64/include/asm/sections.h    | 6 +++---
 arch/parisc/include/asm/sections.h  | 2 +-
 arch/parisc/kernel/process.c        | 6 +++---
 arch/parisc/mm/init.c               | 4 ++--
 arch/powerpc/include/asm/sections.h | 6 +++---
 drivers/misc/kgdbts.c               | 2 +-
 init/main.c                         | 2 +-
 kernel/extable.c                    | 2 +-
 kernel/module.c                     | 2 +-
 lib/vsprintf.c                      | 2 +-
 10 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h
index 2ab2003698ef..de6bfa1ef8fb 100644
--- a/arch/ia64/include/asm/sections.h
+++ b/arch/ia64/include/asm/sections.h
@@ -27,13 +27,13 @@ extern char __start_unwind[], __end_unwind[];
 extern char __start_ivt_text[], __end_ivt_text[];
 
 #undef dereference_function_descriptor
-static inline void *dereference_function_descriptor(void *ptr)
+static inline unsigned long dereference_function_descriptor(unsigned long ptr)
 {
-	struct fdesc *desc = ptr;
+	struct fdesc *desc = (struct fdesc *)ptr;
 	void *p;
 
 	if (!probe_kernel_address(&desc->ip, p))
-		ptr = p;
+		ptr = (unsigned long)p;
 	return ptr;
 }
 
diff --git a/arch/parisc/include/asm/sections.h b/arch/parisc/include/asm/sections.h
index 9d13c3507ad6..59fbe0067112 100644
--- a/arch/parisc/include/asm/sections.h
+++ b/arch/parisc/include/asm/sections.h
@@ -6,7 +6,7 @@
 
 #ifdef CONFIG_64BIT
 #undef dereference_function_descriptor
-void *dereference_function_descriptor(void *);
+unsigned long dereference_function_descriptor(unsigned long);
 #endif
 
 #endif
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 30f92391a93e..d350aa913acc 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -267,13 +267,13 @@ get_wchan(struct task_struct *p)
 }
 
 #ifdef CONFIG_64BIT
-void *dereference_function_descriptor(void *ptr)
+unsigned long dereference_function_descriptor(unsigned long ptr)
 {
-	Elf64_Fdesc *desc = ptr;
+	Elf64_Fdesc *desc = (Elf64_Fdesc *)ptr;
 	void *p;
 
 	if (!probe_kernel_address(&desc->addr, p))
-		ptr = p;
+		ptr = (unsigned long)p;
 	return ptr;
 }
 #endif
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1ca9a2b4239f..06e1b79e2946 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -389,10 +389,10 @@ static void __init setup_bootmem(void)
 static int __init parisc_text_address(unsigned long vaddr)
 {
 	static unsigned long head_ptr __initdata;
+	unsigned long addr = (unsigned long)&parisc_kernel_start;
 
 	if (!head_ptr)
-		head_ptr = PAGE_MASK & (unsigned long)
-			dereference_function_descriptor(&parisc_kernel_start);
+		head_ptr = PAGE_MASK & dereference_function_descriptor(addr);
 
 	return core_kernel_text(vaddr) || vaddr == head_ptr;
 }
diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
index 7902d6358854..67379b8945e8 100644
--- a/arch/powerpc/include/asm/sections.h
+++ b/arch/powerpc/include/asm/sections.h
@@ -66,13 +66,13 @@ static inline int overlaps_kvm_tmp(unsigned long start, unsigned long end)
 
 #ifdef PPC64_ELF_ABI_v1
 #undef dereference_function_descriptor
-static inline void *dereference_function_descriptor(void *ptr)
+static inline unsigned long dereference_function_descriptor(unsigned long ptr)
 {
-	struct ppc64_opd_entry *desc = ptr;
+	struct ppc64_opd_entry *desc = (struct ppc64_opd_entry *)ptr;
 	void *p;
 
 	if (!probe_kernel_address(&desc->funcaddr, p))
-		ptr = p;
+		ptr = (unsigned long)p;
 	return ptr;
 }
 #endif /* PPC64_ELF_ABI_v1 */
diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
index fc7efedbc4be..6a5a159dfb75 100644
--- a/drivers/misc/kgdbts.c
+++ b/drivers/misc/kgdbts.c
@@ -225,7 +225,7 @@ static unsigned long lookup_addr(char *arg)
 		addr = (unsigned long)_do_fork;
 	else if (!strcmp(arg, "hw_break_val"))
 		addr = (unsigned long)&hw_break_val;
-	addr = (unsigned long) dereference_function_descriptor((void *)addr);
+	addr = dereference_function_descriptor(addr);
 	return addr;
 }
 
diff --git a/init/main.c b/init/main.c
index 83bdfa4750b1..ac56f7a4501f 100644
--- a/init/main.c
+++ b/init/main.c
@@ -764,7 +764,7 @@ static bool __init_or_module initcall_blacklisted(initcall_t fn)
 	if (list_empty(&blacklisted_initcalls))
 		return false;
 
-	addr = (unsigned long) dereference_function_descriptor(fn);
+	addr = dereference_function_descriptor((unsigned long)fn);
 	sprint_symbol_no_offset(fn_name, addr);
 
 	/*
diff --git a/kernel/extable.c b/kernel/extable.c
index 9aa1cc41ecf7..e48d6ba4ce6c 100644
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -167,7 +167,7 @@ int kernel_text_address(unsigned long addr)
 int func_ptr_is_kernel_text(void *ptr)
 {
 	unsigned long addr;
-	addr = (unsigned long) dereference_function_descriptor(ptr);
+	addr = dereference_function_descriptor((unsigned long)ptr);
 	if (core_kernel_text(addr))
 		return 1;
 	return is_module_text_address(addr);
diff --git a/kernel/module.c b/kernel/module.c
index de66ec825992..ea77ab13bead 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1067,7 +1067,7 @@ EXPORT_SYMBOL(__symbol_put);
 void symbol_put_addr(void *addr)
 {
 	struct module *modaddr;
-	unsigned long a = (unsigned long)dereference_function_descriptor(addr);
+	unsigned long a = dereference_function_descriptor((unsigned long)addr);
 
 	if (core_kernel_text(a))
 		return;
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 86c3385b9eb3..bcd906a39010 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1723,7 +1723,7 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 	switch (*fmt) {
 	case 'F':
 	case 'f':
-		ptr = dereference_function_descriptor(ptr);
+		ptr = (void *)dereference_function_descriptor((unsigned long)ptr);
 		/* Fallthrough */
 	case 'S':
 	case 's':
-- 
2.14.2



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Cc: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        James Bottomley <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>
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Xref: news.gmane.org gmane.linux.kernel:2581049 gmane.linux.ports.ia64:28179 gmane.linux.ports.parisc:27873 gmane.linux.ports.ppc64.devel:148424
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2581049>

There are two format specifiers to print out a pointer in symbolic
format: '%pS/%ps' and '%pF/%pf'. On most architectures, the two
mean exactly the same thing, but some architectures (ia64, ppc64,
parisc64) use an indirect pointer for C function pointers, where
the function pointer points to a function descriptor (which in
turn contains the actual pointer to the code). The '%pF/%pf, when
used appropriately, automatically does the appropriate function
descriptor dereference on such architectures.

The "when used appropriately" part is tricky. Basically this is
a subtle ABI detail, specific to some platforms, that made it to
the API level and people can be unaware of it and miss the whole
"we need to dereference the function" business out. [1] proves
that point (note that it fixes only '%pF' and '%pS', there might
be '%pf' and '%ps' cases as well).

It appears that we can handle everything within the affected
arches and make '%pS/%ps' smart enough to retire '%pF/%pf'.
Function descriptors live in .opd elf section and all affected
arches (ia64, ppc64, parisc64) handle it properly for kernel
and modules. So we, technically, can decide if the dereference
is needed by simply looking at the pointer: if it belongs to
.opd section then we need to dereference it.

The kernel and modules have their own .opd sections, obviously,
that's why we need to split dereference_function_descriptor()
and use separate kernel and module dereference arch callbacks.

This patch does the first step, it
a) adds dereference_kernel_function_descriptor() function.
b) adds a weak alias to dereference_module_function_descriptor()
   function.

So, for the time being, we will have:
1) dereference_function_descriptor()
   A generic function, that simply dereferences the pointer. There is
   bunch of places that call it: kgdbts, init/main.c, extable, etc.

2) dereference_kernel_function_descriptor()
   A function to call on kernel symbols that does kernel .opd section
   address range test.

3) dereference_module_function_descriptor()
   A function to call on modules' symbols that does modules' .opd
   section address range test.

[1] https://marc.info/?l=linux-kernel&m=150472969730573

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Helge Deller <deller@gmx.de> # parisc64
Tested-by: Santosh Sivaraj <santosh@fossix.org> # powerpc64
Acked-by: Michael Ellerman <mpe@ellerman.id.au> # powerpc64
Tested-by: Tony Luck <tony.luck@intel.com> # ia64
---
 include/asm-generic/sections.h | 8 ++++++--
 include/linux/moduleloader.h   | 4 ++++
 kernel/module.c                | 6 ++++++
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index e5da44eddd2f..387f22c41e0d 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -29,6 +29,7 @@
  *	__ctors_start, __ctors_end
  *	__irqentry_text_start, __irqentry_text_end
  *	__softirqentry_text_start, __softirqentry_text_end
+ *	__start_opd, __end_opd
  */
 extern char _text[], _stext[], _etext[];
 extern char _data[], _sdata[], _edata[];
@@ -47,12 +48,15 @@ extern char __softirqentry_text_start[], __softirqentry_text_end[];
 /* Start and end of .ctors section - used for constructor calls. */
 extern char __ctors_start[], __ctors_end[];
 
+/* Start and end of .opd section - used for function descriptors. */
+extern char __start_opd[], __end_opd[];
+
 extern __visible const void __nosave_begin, __nosave_end;
 
-/* function descriptor handling (if any).  Override
- * in asm/sections.h */
+/* Function descriptor handling (if any).  Override in asm/sections.h */
 #ifndef dereference_function_descriptor
 #define dereference_function_descriptor(p) (p)
+#define dereference_kernel_function_descriptor(p) (p)
 #endif
 
 /* random extra sections (if any).  Override
diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index 4d0cb9bba93e..172904e9cded 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -85,6 +85,10 @@ void module_arch_cleanup(struct module *mod);
 /* Any cleanup before freeing mod->module_init */
 void module_arch_freeing_init(struct module *mod);
 
+/* Dereference module function descriptor */
+unsigned long dereference_module_function_descriptor(struct module *mod,
+						     unsigned long addr);
+
 #ifdef CONFIG_KASAN
 #include <linux/kasan.h>
 #define MODULE_ALIGN (PAGE_SIZE << KASAN_SHADOW_SCALE_SHIFT)
diff --git a/kernel/module.c b/kernel/module.c
index ea77ab13bead..b792e814150a 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2121,6 +2121,12 @@ void __weak module_arch_freeing_init(struct module *mod)
 {
 }
 
+unsigned long __weak dereference_module_function_descriptor(struct module *mod,
+							    unsigned long addr)
+{
+	return addr;
+}
+
 /* Free a module, remove from lists, etc. */
 static void free_module(struct module *mod)
 {
-- 
2.14.2



From - Thu Nov 08 21:40:26 2018
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Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCHv3 3/7] ia64: Add .opd based function descriptor dereference
Date: Sat, 30 Sep 2017 11:53:15 +0900
Lines: 97
Approved: news@gmane.org
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Cc: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        James Bottomley <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/28180>

We are moving towards separate kernel and module function descriptor
dereference callbacks. This patch enables it for IA64.

For pointers that belong to the kernel
-  Added __start_opd and __end_opd pointers, to track the kernel
   .opd section address range;

-  Added dereference_kernel_function_descriptor(). Now we
   will dereference only function pointers that are within
   [__start_opd, __end_opd];

For pointers that belong to a module
-  Added dereference_module_function_descriptor() to handle module
   function descriptor dereference. Now we will dereference only
   pointers that are within [module->opd.start, module->opd.end].

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Helge Deller <deller@gmx.de> # parisc64
Tested-by: Santosh Sivaraj <santosh@fossix.org> # powerpc64
Acked-by: Michael Ellerman <mpe@ellerman.id.au> # powerpc64
Tested-by: Tony Luck <tony.luck@intel.com> # ia64
---
 arch/ia64/include/asm/sections.h | 10 +++++++++-
 arch/ia64/kernel/module.c        | 13 +++++++++++++
 arch/ia64/kernel/vmlinux.lds.S   |  2 ++
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h
index de6bfa1ef8fb..3ba7ce9d8bc8 100644
--- a/arch/ia64/include/asm/sections.h
+++ b/arch/ia64/include/asm/sections.h
@@ -37,6 +37,14 @@ static inline unsigned long dereference_function_descriptor(unsigned long ptr)
 	return ptr;
 }
 
+#undef dereference_kernel_function_descriptor
+static inline unsigned long
+dereference_kernel_function_descriptor(unsigned long addr)
+{
+	if (addr < (unsigned long)__start_opd ||
+			addr >= (unsigned long)__end_opd)
+		return addr;
+	return dereference_function_descriptor(addr);
+}
 
 #endif /* _ASM_IA64_SECTIONS_H */
-
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index d1d945c6bd05..0741ae6fa957 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -35,6 +35,7 @@
 
 #include <asm/patch.h>
 #include <asm/unaligned.h>
+#include <asm/sections.h>
 
 #define ARCH_MODULE_DEBUG 0
 
@@ -917,3 +918,15 @@ module_arch_cleanup (struct module *mod)
 	if (mod->arch.core_unw_table)
 		unw_remove_unwind_table(mod->arch.core_unw_table);
 }
+
+unsigned long
+dereference_module_function_descriptor(struct module *mod, unsigned long addr)
+{
+	Elf64_Shdr *opd = mod->arch.opd;
+
+	if (addr < opd->sh_addr ||
+			addr >= (opd->sh_addr + opd->sh_size))
+		return addr;
+
+	return dereference_function_descriptor(addr);
+}
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 798026dde52e..f872ba5ff82a 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -107,7 +107,9 @@ SECTIONS {
 	RODATA
 
 	.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	}
 
 	/*
-- 
2.14.2

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From - Thu Nov 08 21:40:26 2018
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X-Mozilla-Keys:                                                                                 
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCHv3 4/7] powerpc64: Add .opd based function descriptor dereference
Date: Sat, 30 Sep 2017 11:53:16 +0900
Lines: 116
Approved: news@gmane.org
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To: Petr Mladek <pmladek@suse.com>,
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Xref: news.gmane.org gmane.linux.kernel:2581051 gmane.linux.ports.ia64:28181 gmane.linux.ports.parisc:27875 gmane.linux.ports.ppc64.devel:148426
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2581051>

We are moving towards separate kernel and module function descriptor
dereference callbacks. This patch enables it for powerpc64.

For pointers that belong to the kernel
-  Added __start_opd and __end_opd pointers, to track the kernel
   .opd section address range;

-  Added dereference_kernel_function_descriptor(). Now we
   will dereference only function pointers that are within
   [__start_opd, __end_opd];

For pointers that belong to a module
-  Added dereference_module_function_descriptor() to handle module
   function descriptor dereference. Now we will dereference only
   pointers that are within [module->opd.start, module->opd.end].

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Helge Deller <deller@gmx.de> # parisc64
Tested-by: Santosh Sivaraj <santosh@fossix.org> # powerpc64
Acked-by: Michael Ellerman <mpe@ellerman.id.au> # powerpc64
Tested-by: Tony Luck <tony.luck@intel.com> # ia64
---
 arch/powerpc/include/asm/module.h   |  3 +++
 arch/powerpc/include/asm/sections.h | 11 +++++++++++
 arch/powerpc/kernel/module_64.c     | 16 ++++++++++++++++
 arch/powerpc/kernel/vmlinux.lds.S   |  2 ++
 4 files changed, 32 insertions(+)

diff --git a/arch/powerpc/include/asm/module.h b/arch/powerpc/include/asm/module.h
index 6c0132c7212f..7e28442827f1 100644
--- a/arch/powerpc/include/asm/module.h
+++ b/arch/powerpc/include/asm/module.h
@@ -45,6 +45,9 @@ struct mod_arch_specific {
 	unsigned long tramp;
 #endif
 
+	/* For module function descriptor dereference */
+	unsigned long start_opd;
+	unsigned long end_opd;
 #else /* powerpc64 */
 	/* Indices of PLT sections within module. */
 	unsigned int core_plt_section;
diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
index 67379b8945e8..6b4ee0d1645f 100644
--- a/arch/powerpc/include/asm/sections.h
+++ b/arch/powerpc/include/asm/sections.h
@@ -75,6 +75,17 @@ static inline unsigned long dereference_function_descriptor(unsigned long ptr)
 		ptr = (unsigned long)p;
 	return ptr;
 }
+
+#undef dereference_kernel_function_descriptor
+static inline unsigned long
+dereference_kernel_function_descriptor(unsigned long addr)
+{
+	if (addr < (unsigned long)__start_opd ||
+			addr >= (unsigned long)__end_opd)
+		return addr;
+
+	return dereference_function_descriptor(addr);
+}
 #endif /* PPC64_ELF_ABI_v1 */
 
 #endif
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index 0b0f89685b67..94caec045a90 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -344,6 +344,11 @@ int module_frob_arch_sections(Elf64_Ehdr *hdr,
 		else if (strcmp(secstrings+sechdrs[i].sh_name,"__versions")==0)
 			dedotify_versions((void *)hdr + sechdrs[i].sh_offset,
 					  sechdrs[i].sh_size);
+		else if (!strcmp(secstrings + sechdrs[i].sh_name, ".opd")) {
+			me->arch.start_opd = sechdrs[i].sh_addr;
+			me->arch.end_opd = sechdrs[i].sh_addr +
+					   sechdrs[i].sh_size;
+		}
 
 		/* We don't handle .init for the moment: rename to _init */
 		while ((p = strstr(secstrings + sechdrs[i].sh_name, ".init")))
@@ -712,6 +717,17 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 	return 0;
 }
 
+#ifdef PPC64_ELF_ABI_v1
+unsigned long dereference_module_function_descriptor(struct module *mod,
+						     unsigned long addr)
+{
+	if (addr < mod->arch.start_opd || addr >= mod->arch.end_opd)
+		return addr;
+
+	return dereference_function_descriptor(addr);
+}
+#endif /* PPC64_ELF_ABI_v1 */
+
 #ifdef CONFIG_DYNAMIC_FTRACE
 
 #ifdef CC_USING_MPROFILE_KERNEL
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 882628fa6987..70e10251e083 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -277,7 +277,9 @@ SECTIONS
 	}
 
 	.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	}
 
 	. = ALIGN(256);
-- 
2.14.2



From - Thu Nov 08 21:40:26 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCHv3 5/7] parisc64: Add .opd based function descriptor dereference
Date: Sat, 30 Sep 2017 11:53:17 +0900
Lines: 127
Approved: news@gmane.org
Message-ID: <20170930025319.987-6-sergey.senozhatsky@gmail.com>
References: <20170930025319.987-1-sergey.senozhatsky@gmail.com>
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Cc: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        James Bottomley <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>
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Xref: news.gmane.org gmane.linux.kernel:2581052 gmane.linux.ports.ia64:28182 gmane.linux.ports.parisc:27876 gmane.linux.ports.ppc64.devel:148427
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2581052>

We are moving towards separate kernel and module function descriptor
dereference callbacks. This patch enables it for parisc64.

For pointers that belong to the kernel
-  Added __start_opd and __end_opd pointers, to track the kernel
   .opd section address range;

-  Added dereference_kernel_function_descriptor(). Now we
   will dereference only function pointers that are within
   [__start_opd, __end_opd];

For pointers that belong to a module
-  Added dereference_module_function_descriptor() to handle module
   function descriptor dereference. Now we will dereference only
   pointers that are within [module->opd.start, module->opd.end].

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Tested-by: Helge Deller <deller@gmx.de> # parisc64
Tested-by: Santosh Sivaraj <santosh@fossix.org> # powerpc64
Acked-by: Michael Ellerman <mpe@ellerman.id.au> # powerpc64
Tested-by: Tony Luck <tony.luck@intel.com> # ia64
---
 arch/parisc/boot/compressed/vmlinux.lds.S |  2 ++
 arch/parisc/include/asm/sections.h        |  2 ++
 arch/parisc/kernel/module.c               | 17 +++++++++++++++++
 arch/parisc/kernel/process.c              |  9 +++++++++
 arch/parisc/kernel/vmlinux.lds.S          |  2 ++
 5 files changed, 32 insertions(+)

diff --git a/arch/parisc/boot/compressed/vmlinux.lds.S b/arch/parisc/boot/compressed/vmlinux.lds.S
index a4ce3314e78e..4ebd4e65524c 100644
--- a/arch/parisc/boot/compressed/vmlinux.lds.S
+++ b/arch/parisc/boot/compressed/vmlinux.lds.S
@@ -29,7 +29,9 @@ SECTIONS
 	. = ALIGN(16);
 	/* Linkage tables */
 	.opd : {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	} PROVIDE (__gp = .);
 	.plt : {
 		*(.plt)
diff --git a/arch/parisc/include/asm/sections.h b/arch/parisc/include/asm/sections.h
index 59fbe0067112..845ddc9a3421 100644
--- a/arch/parisc/include/asm/sections.h
+++ b/arch/parisc/include/asm/sections.h
@@ -7,6 +7,8 @@
 #ifdef CONFIG_64BIT
 #undef dereference_function_descriptor
 unsigned long dereference_function_descriptor(unsigned long);
+#undef dereference_kernel_function_descriptor
+unsigned long dereference_kernel_function_descriptor(unsigned long);
 #endif
 
 #endif
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index f1a76935a314..28f89b3dcc11 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -66,6 +66,7 @@
 
 #include <asm/pgtable.h>
 #include <asm/unwind.h>
+#include <asm/sections.h>
 
 #if 0
 #define DEBUGP printk
@@ -954,3 +955,19 @@ void module_arch_cleanup(struct module *mod)
 {
 	deregister_unwind_table(mod);
 }
+
+#ifdef CONFIG_64BIT
+unsigned long dereference_module_function_descriptor(struct module *mod,
+						     unsigned long addr)
+{
+	unsigned long start_opd = (Elf64_Addr)mod->core_layout.base +
+				   mod->arch.fdesc_offset;
+	unsigned long end_opd = start_opd +
+				mod->arch.fdesc_count * sizeof(Elf64_Fdesc);
+
+	if (addr < start_opd || addr >= end_opd)
+		return addr;
+
+	return dereference_function_descriptor(addr);
+}
+#endif
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d350aa913acc..423bbfe90e2b 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -276,6 +276,15 @@ unsigned long dereference_function_descriptor(unsigned long ptr)
 		ptr = (unsigned long)p;
 	return ptr;
 }
+
+unsigned long dereference_kernel_function_descriptor(unsigned long addr)
+{
+	if (addr < (unsigned long)__start_opd ||
+			addr >= (unsigned long)__end_opd)
+		return addr;
+
+	return dereference_function_descriptor(addr);
+}
 #endif
 
 static inline unsigned long brk_rnd(void)
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index ffe2cbf52d1a..ab030895dd1e 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -99,7 +99,9 @@ SECTIONS
 	. = ALIGN(16);
 	/* Linkage tables */
 	.opd : {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	} PROVIDE (__gp = .);
 	.plt : {
 		*(.plt)
-- 
2.14.2



From - Thu Nov 08 21:40:26 2018
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X-Mozilla-Keys:                                                                                 
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCHv3 6/7] symbol lookup: use new kernel and module dereference functions
Date: Sat, 30 Sep 2017 11:53:18 +0900
Lines: 129
Approved: news@gmane.org
Message-ID: <20170930025319.987-7-sergey.senozhatsky@gmail.com>
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Cc: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        James Bottomley <jejb@parisc-linux.org>,
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        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>
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Call appropriate function descriptor dereference ARCH callbacks:
- dereference_kernel_function_descriptor() if the pointer is a
  kernel symbol;

- dereference_module_function_descriptor() if the pointer is a
  module symbol.

This patch also removes dereference_function_descriptor() from
'%pF/%pf' vsprintf handler, because it has the same behavior with
'%pS/%ps' now.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Helge Deller <deller@gmx.de> # parisc64
Tested-by: Santosh Sivaraj <santosh@fossix.org> # powerpc64
Acked-by: Michael Ellerman <mpe@ellerman.id.au> # powerpc64
Tested-by: Tony Luck <tony.luck@intel.com> # ia64
---
 Documentation/printk-formats.txt | 20 ++++++++++----------
 kernel/kallsyms.c                |  1 +
 kernel/module.c                  |  1 +
 lib/vsprintf.c                   |  5 +----
 4 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 361789df51ec..3adbc4fdd482 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -50,26 +50,28 @@ Symbols/Function Pointers
 
 ::
 
+	%pS	versatile_init+0x0/0x110
+	%ps	versatile_init
 	%pF	versatile_init+0x0/0x110
 	%pf	versatile_init
-	%pS	versatile_init+0x0/0x110
 	%pSR	versatile_init+0x9/0x110
 		(with __builtin_extract_return_addr() translation)
-	%ps	versatile_init
 	%pB	prev_fn_of_versatile_init+0x88/0x88
 
-The ``F`` and ``f`` specifiers are for printing function pointers,
-for example, f->func, &gettimeofday. They have the same result as
-``S`` and ``s`` specifiers. But they do an extra conversion on
-ia64, ppc64 and parisc64 architectures where the function pointers
-are actually function descriptors.
-
 The ``S`` and ``s`` specifiers can be used for printing symbols
 from direct addresses, for example, __builtin_return_address(0),
 (void *)regs->ip. They result in the symbol name with (``S``) or
 without (``s``) offsets. If KALLSYMS are disabled then the symbol
 address is printed instead.
 
+Note, that the ``F`` and ``f`` specifiers are identical to ``S`` (``s``)
+and thus deprecated. We have ``F`` and ``f`` because on ia64, ppc64 and
+parisc64 function pointers are indirect and, in fact, are function
+descriptors, which require additional dereferencing before we can lookup
+the symbol. As of now, ``S`` and ``s`` perform dereferencing on those
+platforms (when needed), so ``F`` and ``f`` exist for compatibility
+reasons only.
+
 The ``B`` specifier results in the symbol name with offsets and should be
 used when printing stack backtraces. The specifier takes into
 consideration the effect of compiler optimisations which may occur
@@ -77,8 +79,6 @@ when tail-call``s are used and marked with the noreturn GCC attribute.
 
 Examples::
 
-	printk("Going to call: %pF\n", gettimeofday);
-	printk("Going to call: %pF\n", p->func);
 	printk("%s: called from %pS\n", __func__, (void *)_RET_IP_);
 	printk("%s: called from %pS\n", __func__,
 				(void *)__builtin_return_address(0));
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 127e7cfafa55..e2fc09ea9509 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -322,6 +322,7 @@ const char *kallsyms_lookup(unsigned long addr,
 	if (is_ksym_addr(addr)) {
 		unsigned long pos;
 
+		addr = dereference_kernel_function_descriptor(addr);
 		pos = get_symbol_pos(addr, symbolsize, offset);
 		/* Grab name */
 		kallsyms_expand_symbol(get_symbol_offset(pos),
diff --git a/kernel/module.c b/kernel/module.c
index b792e814150a..63361de377ad 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3948,6 +3948,7 @@ const char *module_address_lookup(unsigned long addr,
 	preempt_disable();
 	mod = __module_address(addr);
 	if (mod) {
+		addr = dereference_module_function_descriptor(mod, addr);
 		if (modname)
 			*modname = mod->name;
 		ret = get_ksymbol(mod, addr, size, offset);
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index bcd906a39010..bf04b4f5d8e7 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -40,7 +40,6 @@
 #include "../mm/internal.h"	/* For the trace_print_flags arrays */
 
 #include <asm/page.h>		/* for PAGE_SIZE */
-#include <asm/sections.h>	/* for dereference_function_descriptor() */
 #include <asm/byteorder.h>	/* cpu_to_le16 */
 
 #include <linux/string_helpers.h>
@@ -1721,10 +1720,8 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 	}
 
 	switch (*fmt) {
-	case 'F':
+	case 'F': /* %pF and %pf are kept for compatibility reasons only */
 	case 'f':
-		ptr = (void *)dereference_function_descriptor((unsigned long)ptr);
-		/* Fallthrough */
 	case 'S':
 	case 's':
 	case 'B':
-- 
2.14.2

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From - Thu Nov 08 21:40:26 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCHv3 7/7] checkpatch: add pF/pf deprecation warning
Date: Sat, 30 Sep 2017 11:53:19 +0900
Lines: 59
Approved: news@gmane.org
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        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
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We deprecated '%pF/%pf' printk specifiers, since '%pS/%ps' is now smart
enough to handle function pointer dereference on platforms where such
dereference is required.

checkpatch warning example:

WARNING: Deprecated vsprintf pointer extension '%pF' - use %pS instead

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Tested-by: Helge Deller <deller@gmx.de> # parisc64
Tested-by: Santosh Sivaraj <santosh@fossix.org> # powerpc64
Acked-by: Michael Ellerman <mpe@ellerman.id.au> # powerpc64
Tested-by: Tony Luck <tony.luck@intel.com> # ia64
---
 scripts/checkpatch.pl | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 03eb2551477d..387c453413e0 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5762,18 +5762,25 @@ sub process {
 		        for (my $count = $linenr; $count <= $lc; $count++) {
 				my $fmt = get_quoted_string($lines[$count - 1], raw_line($count, 0));
 				$fmt =~ s/%%//g;
-				if ($fmt =~ /(\%[\*\d\.]*p(?![\WFfSsBKRraEhMmIiUDdgVCbGNO]).)/) {
+				if ($fmt =~ /(\%[\*\d\.]*p(?![\WSsBKRraEhMmIiUDdgVCbGNO]).)/) {
 					$bad_extension = $1;
 					last;
 				}
 			}
 			if ($bad_extension ne "") {
 				my $stat_real = raw_line($linenr, 0);
+				my $ext_type = "Invalid";
+				my $use = "";
 				for (my $count = $linenr + 1; $count <= $lc; $count++) {
 					$stat_real = $stat_real . "\n" . raw_line($count, 0);
 				}
+				if ($bad_extension =~ /p[Ff]/) {
+					$ext_type = "Deprecated";
+					$use = " - use %pS instead";
+					$use =~ s/pS/ps/ if ($bad_extension =~ /pf/);
+				}
 				WARN("VSPRINTF_POINTER_EXTENSION",
-				     "Invalid vsprintf pointer extension '$bad_extension'\n" . "$here\n$stat_real\n");
+				     "$ext_type vsprintf pointer extension '$bad_extension'$use\n" . "$here\n$stat_real\n");
 			}
 		}
 
-- 
2.14.2

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From - Thu Nov 08 21:40:26 2018
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From: Tom Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: HP-UX for C8000
Date: Sat, 30 Sep 2017 17:25:06 +0200
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Hi,

while makeing progress on getting better graphic support for C8000
machines, I'm at a point I need some help...

Current status:

- PCI Radeon card is passing the DMA tests (using test hack)
- fixed three bugs in parisc-agp.c (wrong byte order for iommu entries,
  missing coherence information in iommu entries and missing fdc for
  ioemmu entries)
- AGP card are still not working, looks like they don't even start a DMA
  transfer at all

I'm stuck at this point as there is no documentation for quicksilver
agp available. The zx1-ioa document only covers mercury agp bridges
(used and working in ZX2000/ZX6000), but quicksilver is different
and I couldn't find the missing bit(s), yet. I now have two ideas
to make progess. I'm going to measure, if a REQ signal is issued on
the AGP bus and also look if the bridge responds with GNT. The second
idea involves HP-UX. I want to look what HP-UX does with quicksilver.

Does anyone have a C8000 with a running HP-UX on it and can help
getting a register dump of quicksilver ? Otherwise what HP-UX should
I try to get for a C8000 ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HP-UX for C8000
Date: Sat, 30 Sep 2017 13:34:35 -0400
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Hi Thomas,

On 2017-09-30, at 11:25 AM, Tom Bogendoerfer wrote:

> Does anyone have a C8000 with a running HP-UX on it and can help
> getting a register dump of quicksilver ?

I have a c8000 with hpux although I haven't booted it in some time.  Let me know specifically
what is needed and I'll give it a try.

Dave
--
John David Anglin	dave.anglin@bell.net



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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] parisc: Fix double-word compare and exchange on 32-bit kernels
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As discussed on the debian-hppa list, double-wordcompare and exchange =
operations
fail on 32-bit kernels.  Looking at the code, I realized that the ",ma" =
completer does the wrong
thing in the  "ldw,ma  4(%r26), %r29" instruction.  This increments %r26 =
and causes the following
store to write to the wrong location.

Signed-off-by: John David Anglin <dave.anglin@bell.net>


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diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 23de307c3052..41e60a9c7db2 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -742,7 +742,7 @@ lws_compare_and_swap_2:
 10:	ldd	0(%r25), %r25
 11:	ldd	0(%r24), %r24
 #else
-	/* Load new value into r22/r23 - high/low */
+	/* Load old value into r22/r23 - high/low */
 10:	ldw	0(%r25), %r22
 11:	ldw	4(%r25), %r23
 	/* Load new value into fr4 for atomic store later */
@@ -834,11 +834,11 @@ cas2_action:
 	copy	%r0, %r28
 #else
 	/* Compare first word */
-19:	ldw,ma	0(%r26), %r29
+19:	ldw	0(%r26), %r29
 	sub,=	%r29, %r22, %r0
 	b,n	cas2_end
 	/* Compare second word */
-20:	ldw,ma	4(%r26), %r29
+20:	ldw	4(%r26), %r29
 	sub,=	%r29, %r23, %r0
 	b,n	cas2_end
 	/* Perform the store */

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From - Thu Nov 08 21:40:27 2018
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From: Tom Bogendoerfer <tsbogend@alpha.franken.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: HP-UX for C8000
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On Sat, Sep 30, 2017 at 01:34:35PM -0400, John David Anglin wrote:
> Hi Thomas,
> 
> On 2017-09-30, at 11:25 AM, Tom Bogendoerfer wrote:
> 
> > Does anyone have a C8000 with a running HP-UX on it and can help
> > getting a register dump of quicksilver ?
> 
> I have a c8000 with hpux although I haven't booted it in some time.
> Let me know specifically what is needed and I'll give it a try.

does it have a working graphics card ? 

Does anybody know HP-UX ? Could I mmap the register of quicksilver
and dump it from user space ?

Thomas.

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On 2017-10-01, at 7:46 AM, Tom Bogendoerfer wrote:

> On Sat, Sep 30, 2017 at 01:34:35PM -0400, John David Anglin wrote:
>> Hi Thomas,
>> 
>> On 2017-09-30, at 11:25 AM, Tom Bogendoerfer wrote:
>> 
>>> Does anyone have a C8000 with a running HP-UX on it and can help
>>> getting a register dump of quicksilver ?
>> 
>> I have a c8000 with hpux although I haven't booted it in some time.
>> Let me know specifically what is needed and I'll give it a try.
> 
> does it have a working graphics card ? 

Yes (card used to work but I haven't used it in some time).

> 
> Does anybody know HP-UX ? Could I mmap the register of quicksilver
> and dump it from user space ?

Manpage for mmap says:

      The mmap() function is supported for regular files.  Support for any
      other type of file is unspecified.

If there is a device, possibly one can use dd.

Dave
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On 2017-10-01, at 9:20 AM, John David Anglin wrote:

>> 
>> Does anybody know HP-UX ? Could I mmap the register of quicksilver
>> and dump it from user space ?
> 
> Manpage for mmap says:
> 
>      The mmap() function is supported for regular files.  Support for any
>      other type of file is unspecified.
> 
> If there is a device, possibly one can use dd.

There are also /dev/mem and /dev/kmem:

 mem(7)                                                               mem(7)

 NAME
      mem - main memory

 DESCRIPTION
      mem is a special file that is an image of the main memory of the
      computer.  It may be used, for example, to examine and patch the
      system.

      Byte addresses in mem are interpreted as physical memory addresses.
      References to non-existent locations cause errors to be returned.

      File kmem is the same as mem except that kernel virtual memory rather
      than physical memory is accessed.  Please refer to kmem(7) for
      information about ioctl operations that are supported on /dev/kmem.
...

 NAME
      kmem - perform I/O on kernel memory based on symbol name.

Dave
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On 2017-10-01, at 7:46 AM, Tom Bogendoerfer wrote:

>> I have a c8000 with hpux although I haven't booted it in some time.
>> Let me know specifically what is needed and I'll give it a try.
> 
> does it have a working graphics card ? 

We have in linux boot:

Quicksilver version TR1.0 (0x10) found at 0xfffffffffed28000                    
LBA: lmmio_space [0xffffffffc0000000-0xffffffffdfffffff] - new                  
LBA 0:4: PCI host bridge to bus 0000:80                                         
pci_bus 0000:80: root bus resource [io  0x30000-0x3ffff] (bus address [0x0000-0)
pci_bus 0000:80: root bus resource [mem 0xffffffffc0000000-0xffffffffdfffffff] )
pci_bus 0000:80: root bus resource [bus 80-87]                                  
powersw: Soft power switch at 0xfffffff0f042e278 enabled.                       
pci 0000:80:00.0: vgaarb: setting as boot VGA device                            
pci 0000:80:00.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=noe
pci 0000:80:00.0: vgaarb: bridge control possible                               
vgaarb: loaded                                                                  

Dave
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Hi Helge,

rc2+ booted on c8000 (don't know about mx3210) but I saw the following error that I haven't seen before:

sd 4:0:0:0: [sda] 143374738 512-byte logical blocks: (73.4 GB/68.4 GiB)
...
sd 4:0:0:0: [sda] Write Protect is off                                          
sd 4:0:2:0: [sdb] Spinning up disk...                                           
sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FA
...
sd 4:0:0:0: [sda] Attached SCSI disk                                            
...
Begin: Will now check root file system ... fsck from util-linux 2.29.2          
[/sbin/fsck.ext3 (1) -- /dev/sda4] fsck.ext3 -a -C0 /dev/sda4                   
ROOT: clean, 146966/4341760 files, 6241775/17343EXT4-fs (sda4): mounting ext3 fm
502 blocks                                                                      
done.                                                                           
EXT4-fs (sda4): mounted filesystem with ordered data mode. Opts: (null)         
done.                                                                           
...
sd 4:0:0:0: Attached scsi generic sg0 type 0                                    
...
attempt to access beyond end of device                                          
unknown-block(8,0): rw=0, want=143374744, limit=143374738                       
attempt to access beyond end of device                                          
unknown-block(8,0): rw=0, want=143374744, limit=143374738                       
Buffer I/O error on dev sda4, logical block 17343502, async page read           

Doesn't happen with v4.13.4.

Dave    

On 2017-09-28, at 1:36 PM, Helge Deller wrote:

> Hi Dave,
> 
> Actually, I didn't fully read your error description...
> I fixed a bug before rc2, where the kernel bootloader was hanging after
> saying "Decompressing...".
> I didn't saw any issues with ttyS switch...
> 
> Helge
> On 28.09.2017 16:33, Helge Deller wrote:
>> Should be fixed in rc2
>> -------- Ursprngliche Nachricht --------
>> Von: John David Anglin <dave.anglin@bell.net>
>> Datum: 28.09.17 15:49 (GMT+01:00)
>> An: Helge Deller <deller@gmx.de>
>> Betreff: v4.14.0-rc1+
>> I tried to boot a v4.14.0-rc1+ build that I did a couple of days ago.  I
>> think the last patch
>> was the parisc merge.  It dies after console switch to ttyS1.  I tried
>> to reset using the RS
>> command but the system locked up completely and I lost console access.
>> Had to pull power
>> plug to reset it.  v4.13.3 booted successfully.
>> Dave
>> -- 
>> John David Anglin  dave.anglin@bell.net
> 

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On 2017-10-01, at 7:46 AM, Tom Bogendoerfer wrote:

> does it have a working graphics card ? 

It's a FireGL T2:
80:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV350 GL [FireGL T2] (rev 80)

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Make pdc.h more easily reuseable outside of the kernel, e.g. for seabios
and qemu builds.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/pdc.h b/arch/parisc/include/uapi/asm/pdc.h
index 1f30b49772aa..25e85448b252 100644
--- a/arch/parisc/include/uapi/asm/pdc.h
+++ b/arch/parisc/include/uapi/asm/pdc.h
@@ -339,9 +339,6 @@
 
 #if !defined(__ASSEMBLY__)
 
-#include <linux/types.h>
-

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Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCHv3 1/7] switch dereference_function_descriptor() to
 `unsigned long'
Date: Wed, 4 Oct 2017 10:24:14 +0200
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To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
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On Sat 2017-09-30 11:53:13, Sergey Senozhatsky wrote:
> Convert dereference_function_descriptor() to accept and return
> `unsigned long'. There will be two new ARCH function for kernel
> and module function pointer dereference, which will work with
> `unsigned long', so the patch unifies interfaces.
> 
> Besides, dereference_function_descriptor() mostly work with
> `unsigned long':
> 
> Convert dereference_function_descriptor() users tree-wide.

I am not sure if this is a real win. If I count correctly,
the net result is 6 additional casts in this patch. Many
casts are still needed also in the other patches.


> diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h
> index 2ab2003698ef..de6bfa1ef8fb 100644
> --- a/arch/ia64/include/asm/sections.h
> +++ b/arch/ia64/include/asm/sections.h
> @@ -27,13 +27,13 @@ extern char __start_unwind[], __end_unwind[];
>  extern char __start_ivt_text[], __end_ivt_text[];
>  
>  #undef dereference_function_descriptor
> -static inline void *dereference_function_descriptor(void *ptr)
> +static inline unsigned long dereference_function_descriptor(unsigned long ptr)

I would also expect that a function called "dereference*" would work with
a pointer. The parameter is called ptr but it is unsigned long.

>  {
> -	struct fdesc *desc = ptr;
> +	struct fdesc *desc = (struct fdesc *)ptr;
>  	void *p;
>  
>  	if (!probe_kernel_address(&desc->ip, p))
> -		ptr = p;
> +		ptr = (unsigned long)p;
>  	return ptr;
>  }
>  
> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> index 1ca9a2b4239f..06e1b79e2946 100644
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -389,10 +389,10 @@ static void __init setup_bootmem(void)
>  static int __init parisc_text_address(unsigned long vaddr)
>  {
>  	static unsigned long head_ptr __initdata;
> +	unsigned long addr = (unsigned long)&parisc_kernel_start;
>  
>  	if (!head_ptr)
> -		head_ptr = PAGE_MASK & (unsigned long)
> -			dereference_function_descriptor(&parisc_kernel_start);
> +		head_ptr = PAGE_MASK & dereference_function_descriptor(addr);

IMHO, this is harder to read than the original. You need to
search the definition of "addr" and check its manipulation
to understand the meaning.

>  
>  	return core_kernel_text(vaddr) || vaddr == head_ptr;
>  }


To make it clear. All these comments are not a big deal and I do
not want to invalidate all the acked-by and tested-by just because
of them.

But please, consider removing this change if we need to do
another iteration of this patchset. IMHO, there is no real win
and it would just pollute the git history.

Best Regards,
Petr
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Subject: Re: [PATCHv3 2/7] sections: split dereference_function_descriptor()
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To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
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On Sat 2017-09-30 11:53:14, Sergey Senozhatsky wrote:
> There are two format specifiers to print out a pointer in symbolic
> format: '%pS/%ps' and '%pF/%pf'. On most architectures, the two
> mean exactly the same thing, but some architectures (ia64, ppc64,
> parisc64) use an indirect pointer for C function pointers, where
> the function pointer points to a function descriptor (which in
> turn contains the actual pointer to the code). The '%pF/%pf, when
> used appropriately, automatically does the appropriate function
> descriptor dereference on such architectures.
> 
> The "when used appropriately" part is tricky. Basically this is
> a subtle ABI detail, specific to some platforms, that made it to
> the API level and people can be unaware of it and miss the whole
> "we need to dereference the function" business out. [1] proves
> that point (note that it fixes only '%pF' and '%pS', there might
> be '%pf' and '%ps' cases as well).
> 
> It appears that we can handle everything within the affected
> arches and make '%pS/%ps' smart enough to retire '%pF/%pf'.
> Function descriptors live in .opd elf section and all affected
> arches (ia64, ppc64, parisc64) handle it properly for kernel
> and modules. So we, technically, can decide if the dereference
> is needed by simply looking at the pointer: if it belongs to
> .opd section then we need to dereference it.

Great catch. I really like this approach!

> diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
> index e5da44eddd2f..387f22c41e0d 100644
> --- a/include/asm-generic/sections.h
> +++ b/include/asm-generic/sections.h
> @@ -29,6 +29,7 @@
>   *	__ctors_start, __ctors_end
>   *	__irqentry_text_start, __irqentry_text_end
>   *	__softirqentry_text_start, __softirqentry_text_end
> + *	__start_opd, __end_opd
>   */
>  extern char _text[], _stext[], _etext[];
>  extern char _data[], _sdata[], _edata[];
> @@ -47,12 +48,15 @@ extern char __softirqentry_text_start[], __softirqentry_text_end[];
>  /* Start and end of .ctors section - used for constructor calls. */
>  extern char __ctors_start[], __ctors_end[];
>  
> +/* Start and end of .opd section - used for function descriptors. */
> +extern char __start_opd[], __end_opd[];
> +
>  extern __visible const void __nosave_begin, __nosave_end;
>  
> -/* function descriptor handling (if any).  Override
> - * in asm/sections.h */
> +/* Function descriptor handling (if any).  Override in asm/sections.h */
>  #ifndef dereference_function_descriptor
>  #define dereference_function_descriptor(p) (p)
> +#define dereference_kernel_function_descriptor(p) (p)
>  #endif
>  
>  /* random extra sections (if any).  Override
> diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
> index 4d0cb9bba93e..172904e9cded 100644
> --- a/include/linux/moduleloader.h
> +++ b/include/linux/moduleloader.h
> @@ -85,6 +85,10 @@ void module_arch_cleanup(struct module *mod);
>  /* Any cleanup before freeing mod->module_init */
>  void module_arch_freeing_init(struct module *mod);
>  
> +/* Dereference module function descriptor */
> +unsigned long dereference_module_function_descriptor(struct module *mod,
> +						     unsigned long addr);
> +

The function is used when the module is already loaded. IMHO,
include/linux/module.h would be a better place.

One advantage would be that we could use the same trick
as in include/asm-generic/sections.h. I mean:

#define dereference_module_function_descriptor(mod, addr) (addr)

and redefine it in the three affected
arch/<arch>/include/asm/module.h headers. Then it might be completely
optimized out on all architectures.

Anyway, we need to get ack from Jessica for this change.

Best Regards,
Petr


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Subject: Re: [PATCHv3 3/7] ia64: Add .opd based function descriptor
 dereference
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On Sat 2017-09-30 11:53:15, Sergey Senozhatsky wrote:
> We are moving towards separate kernel and module function descriptor
> dereference callbacks. This patch enables it for IA64.
> 
> For pointers that belong to the kernel
> -  Added __start_opd and __end_opd pointers, to track the kernel
>    .opd section address range;
> 
> -  Added dereference_kernel_function_descriptor(). Now we
>    will dereference only function pointers that are within
>    [__start_opd, __end_opd];
> 
> For pointers that belong to a module
> -  Added dereference_module_function_descriptor() to handle module
>    function descriptor dereference. Now we will dereference only
>    pointers that are within [module->opd.start, module->opd.end].
> 
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
> Tested-by: Helge Deller <deller@gmx.de> # parisc64
> Tested-by: Santosh Sivaraj <santosh@fossix.org> # powerpc64
> Acked-by: Michael Ellerman <mpe@ellerman.id.au> # powerpc64
> Tested-by: Tony Luck <tony.luck@intel.com> # ia64

Looks good to me.

Reviewed-by: Petr Mladek <pmladek@suse.com>

Best Regards,
Petr
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 dereference
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On Sat 2017-09-30 11:53:16, Sergey Senozhatsky wrote:
> We are moving towards separate kernel and module function descriptor
> dereference callbacks. This patch enables it for powerpc64.
> 
> For pointers that belong to the kernel
> -  Added __start_opd and __end_opd pointers, to track the kernel
>    .opd section address range;
> 
> -  Added dereference_kernel_function_descriptor(). Now we
>    will dereference only function pointers that are within
>    [__start_opd, __end_opd];
> 
> For pointers that belong to a module
> -  Added dereference_module_function_descriptor() to handle module
>    function descriptor dereference. Now we will dereference only
>    pointers that are within [module->opd.start, module->opd.end].
> 
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
> Tested-by: Helge Deller <deller@gmx.de> # parisc64
> Tested-by: Santosh Sivaraj <santosh@fossix.org> # powerpc64
> Acked-by: Michael Ellerman <mpe@ellerman.id.au> # powerpc64
> Tested-by: Tony Luck <tony.luck@intel.com> # ia64
> ---
>  arch/powerpc/include/asm/module.h   |  3 +++
>  arch/powerpc/include/asm/sections.h | 11 +++++++++++
>  arch/powerpc/kernel/module_64.c     | 16 ++++++++++++++++
>  arch/powerpc/kernel/vmlinux.lds.S   |  2 ++
>  4 files changed, 32 insertions(+)
> 
> diff --git a/arch/powerpc/include/asm/module.h b/arch/powerpc/include/asm/module.h
> index 6c0132c7212f..7e28442827f1 100644
> --- a/arch/powerpc/include/asm/module.h
> +++ b/arch/powerpc/include/asm/module.h
> @@ -45,6 +45,9 @@ struct mod_arch_specific {
>  	unsigned long tramp;
>  #endif
>  
> +	/* For module function descriptor dereference */
> +	unsigned long start_opd;
> +	unsigned long end_opd;
>  #else /* powerpc64 */
>  	/* Indices of PLT sections within module. */
>  	unsigned int core_plt_section;
> diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
> index 67379b8945e8..6b4ee0d1645f 100644
> --- a/arch/powerpc/include/asm/sections.h
> +++ b/arch/powerpc/include/asm/sections.h
> @@ -75,6 +75,17 @@ static inline unsigned long dereference_function_descriptor(unsigned long ptr)
>  		ptr = (unsigned long)p;
>  	return ptr;
>  }
> +
> +#undef dereference_kernel_function_descriptor
> +static inline unsigned long
> +dereference_kernel_function_descriptor(unsigned long addr)
> +{
> +	if (addr < (unsigned long)__start_opd ||
> +			addr >= (unsigned long)__end_opd)
> +		return addr;
> +
> +	return dereference_function_descriptor(addr);
> +}
>  #endif /* PPC64_ELF_ABI_v1 */
>  
>  #endif
> diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
> index 0b0f89685b67..94caec045a90 100644
> --- a/arch/powerpc/kernel/module_64.c
> +++ b/arch/powerpc/kernel/module_64.c
> @@ -344,6 +344,11 @@ int module_frob_arch_sections(Elf64_Ehdr *hdr,
>  		else if (strcmp(secstrings+sechdrs[i].sh_name,"__versions")==0)
>  			dedotify_versions((void *)hdr + sechdrs[i].sh_offset,
>  					  sechdrs[i].sh_size);
> +		else if (!strcmp(secstrings + sechdrs[i].sh_name, ".opd")) {
> +			me->arch.start_opd = sechdrs[i].sh_addr;
> +			me->arch.end_opd = sechdrs[i].sh_addr +
> +					   sechdrs[i].sh_size;
> +		}
>  
>  		/* We don't handle .init for the moment: rename to _init */
>  		while ((p = strstr(secstrings + sechdrs[i].sh_name, ".init")))
> @@ -712,6 +717,17 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
>  	return 0;
>  }
>  
> +#ifdef PPC64_ELF_ABI_v1
> +unsigned long dereference_module_function_descriptor(struct module *mod,
> +						     unsigned long addr)
> +{
> +	if (addr < mod->arch.start_opd || addr >= mod->arch.end_opd)
> +		return addr;
> +
> +	return dereference_function_descriptor(addr);
> +}
> +#endif /* PPC64_ELF_ABI_v1 */

I would personally move this up in the source file. It is related to
the definition of func_desc() and other functions that are
also PPC_ELF_ABI-specific.

Otherwise, it looks good to me.

Reviewed-by: Petr Mladek <pmladek@suse.com>

Best Regards,
Petr
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From - Thu Nov 08 21:40:27 2018
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From: Petr Mladek <pmladek@suse.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCHv3 5/7] parisc64: Add .opd based function descriptor
 dereference
Date: Wed, 4 Oct 2017 12:40:16 +0200
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Approved: news@gmane.org
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 <20170930025319.987-6-sergey.senozhatsky@gmail.com>
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To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/28215>

On Sat 2017-09-30 11:53:17, Sergey Senozhatsky wrote:
> We are moving towards separate kernel and module function descriptor
> dereference callbacks. This patch enables it for parisc64.
> 
> For pointers that belong to the kernel
> -  Added __start_opd and __end_opd pointers, to track the kernel
>    .opd section address range;
> 
> -  Added dereference_kernel_function_descriptor(). Now we
>    will dereference only function pointers that are within
>    [__start_opd, __end_opd];
> 
> For pointers that belong to a module
> -  Added dereference_module_function_descriptor() to handle module
>    function descriptor dereference. Now we will dereference only
>    pointers that are within [module->opd.start, module->opd.end].

> diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
> index f1a76935a314..28f89b3dcc11 100644
> --- a/arch/parisc/kernel/module.c
> +++ b/arch/parisc/kernel/module.c
> @@ -954,3 +955,19 @@ void module_arch_cleanup(struct module *mod)
>  {
>  	deregister_unwind_table(mod);
>  }
> +
> +#ifdef CONFIG_64BIT
> +unsigned long dereference_module_function_descriptor(struct module *mod,
> +						     unsigned long addr)
> +{
> +	unsigned long start_opd = (Elf64_Addr)mod->core_layout.base +
> +				   mod->arch.fdesc_offset;
> +	unsigned long end_opd = start_opd +
> +				mod->arch.fdesc_count * sizeof(Elf64_Fdesc);

I know that this is used in rather slow paths. But it still might
make sense to have these section borders pre-computed and
stored in struct mod_arch_specific. I mean to do similar
thing that we do on powerpc.

Well, we could do this in a followup patch if parisc people
wanted it.


> +	if (addr < start_opd || addr >= end_opd)
> +		return addr;
> +
> +	return dereference_function_descriptor(addr);
> +}
> +#endif

Otherwise the patch looks fine to me.

Reviewed-by: Petr Mladek <pmladek@suse.com>

Best Regards,
Petr
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From - Thu Nov 08 21:40:27 2018
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Petr Mladek <pmladek@suse.com> writes:
> On Sat 2017-09-30 11:53:16, Sergey Senozhatsky wrote:
>> diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
>> index 0b0f89685b67..94caec045a90 100644
>> --- a/arch/powerpc/kernel/module_64.c
>> +++ b/arch/powerpc/kernel/module_64.c
>> @@ -712,6 +717,17 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
>>  	return 0;
>>  }
>>  
>> +#ifdef PPC64_ELF_ABI_v1
>> +unsigned long dereference_module_function_descriptor(struct module *mod,
>> +						     unsigned long addr)
>> +{
>> +	if (addr < mod->arch.start_opd || addr >= mod->arch.end_opd)
>> +		return addr;
>> +
>> +	return dereference_function_descriptor(addr);
>> +}
>> +#endif /* PPC64_ELF_ABI_v1 */
>
> I would personally move this up in the source file. It is related to
> the definition of func_desc() and other functions that are
> also PPC_ELF_ABI-specific.

Yeah that would be neater. There's already a PPC64_ELF_ABI_v2 block, you
could put this in the else case of that.

But we can do that later if you're not respinning otherwise.

cheers
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Subject: Re: [PATCHv3 6/7] symbol lookup: use new kernel and module
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To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
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On Sat 2017-09-30 11:53:18, Sergey Senozhatsky wrote:
> Call appropriate function descriptor dereference ARCH callbacks:
> - dereference_kernel_function_descriptor() if the pointer is a
>   kernel symbol;
> 
> - dereference_module_function_descriptor() if the pointer is a
>   module symbol.
> 
> This patch also removes dereference_function_descriptor() from
> '%pF/%pf' vsprintf handler, because it has the same behavior with
> '%pS/%ps' now.

The description is pretty criptic. It should explain why
the dereference was moved from vsprintf to the symbol lookup
and if it is safe.

Note that kallsyms_lookup() and module_address_lookup() is used
in many other situations.

Also I would not be afraid to repeat description of the big picture
from the 2nd patch.

> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
> Tested-by: Helge Deller <deller@gmx.de> # parisc64
> Tested-by: Santosh Sivaraj <santosh@fossix.org> # powerpc64
> Acked-by: Michael Ellerman <mpe@ellerman.id.au> # powerpc64
> Tested-by: Tony Luck <tony.luck@intel.com> # ia64
> ---
>  Documentation/printk-formats.txt | 20 ++++++++++----------
>  kernel/kallsyms.c                |  1 +
>  kernel/module.c                  |  1 +
>  lib/vsprintf.c                   |  5 +----
>  4 files changed, 13 insertions(+), 14 deletions(-)
> 
> diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
> index 361789df51ec..3adbc4fdd482 100644
> --- a/Documentation/printk-formats.txt
> +++ b/Documentation/printk-formats.txt
> @@ -50,26 +50,28 @@ Symbols/Function Pointers
>  
>  ::
>  
> +	%pS	versatile_init+0x0/0x110
> +	%ps	versatile_init
>  	%pF	versatile_init+0x0/0x110
>  	%pf	versatile_init
> -	%pS	versatile_init+0x0/0x110
>  	%pSR	versatile_init+0x9/0x110
>  		(with __builtin_extract_return_addr() translation)
> -	%ps	versatile_init
>  	%pB	prev_fn_of_versatile_init+0x88/0x88
>  
> -The ``F`` and ``f`` specifiers are for printing function pointers,
> -for example, f->func, &gettimeofday. They have the same result as
> -``S`` and ``s`` specifiers. But they do an extra conversion on
> -ia64, ppc64 and parisc64 architectures where the function pointers
> -are actually function descriptors.
> -
>  The ``S`` and ``s`` specifiers can be used for printing symbols
>  from direct addresses, for example, __builtin_return_address(0),
>  (void *)regs->ip. They result in the symbol name with (``S``) or
>  without (``s``) offsets. If KALLSYMS are disabled then the symbol
>  address is printed instead.

This paragraph makes the feeling that ``S`` is still only for direct
adresses. We should update it as well.


> +Note, that the ``F`` and ``f`` specifiers are identical to ``S`` (``s``)
> +and thus deprecated. We have ``F`` and ``f`` because on ia64, ppc64 and
> +parisc64 function pointers are indirect and, in fact, are function
> +descriptors, which require additional dereferencing before we can lookup
> +the symbol. As of now, ``S`` and ``s`` perform dereferencing on those
> +platforms (when needed), so ``F`` and ``f`` exist for compatibility
> +reasons only.
> +
>  The ``B`` specifier results in the symbol name with offsets and should be
>  used when printing stack backtraces. The specifier takes into
>  consideration the effect of compiler optimisations which may occur
> @@ -77,8 +79,6 @@ when tail-call``s are used and marked with the noreturn GCC attribute.
>  
>  Examples::
>  
> -	printk("Going to call: %pF\n", gettimeofday);
> -	printk("Going to call: %pF\n", p->func);
>  	printk("%s: called from %pS\n", __func__, (void *)_RET_IP_);
>  	printk("%s: called from %pS\n", __func__,
>  				(void *)__builtin_return_address(0));

We should either replace %pF with %pS or remove all examples.
It is strange to keep only half of them.


> diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
> index 127e7cfafa55..e2fc09ea9509 100644
> --- a/kernel/kallsyms.c
> +++ b/kernel/kallsyms.c
> @@ -322,6 +322,7 @@ const char *kallsyms_lookup(unsigned long addr,
>  	if (is_ksym_addr(addr)) {

is_ksym_addr() ignores the special .opd elf sections if
CONFIG_KALLSYMS_ALL is disabled. We should dereference before
this call.

>  		unsigned long pos;
>  
> +		addr = dereference_kernel_function_descriptor(addr);
>  		pos = get_symbol_pos(addr, symbolsize, offset);

I still wonder if doing the dereference in the widely used kallsyms
might cause any regression.

One possible problem is that this function returns "offset".
One might expect that it is offset against "addr" but
it is not if the dereference happens here.

Also get_symbol_pos() is called in several other helpers
but the dereference is done only here. It would be
confusing if for example kallsyms_lookup_size_offset()
and kallsyms_lookup() give different result.

I would feel much more comfortable if we keep the derefenrece
only in vsprintf.


In each case, we need approval from Jessica for the
change in module.c.

Best Regards,
Petr
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From - Thu Nov 08 21:40:28 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCHv3 7/7] checkpatch: add pF/pf deprecation warning
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On Sat 2017-09-30 11:53:19, Sergey Senozhatsky wrote:
> We deprecated '%pF/%pf' printk specifiers, since '%pS/%ps' is now smart
> enough to handle function pointer dereference on platforms where such
> dereference is required.
> 
> checkpatch warning example:
> 
> WARNING: Deprecated vsprintf pointer extension '%pF' - use %pS instead
> 
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
> Signed-off-by: Joe Perches <joe@perches.com>
> Cc: Andy Whitcroft <apw@canonical.com>
> Tested-by: Helge Deller <deller@gmx.de> # parisc64
> Tested-by: Santosh Sivaraj <santosh@fossix.org> # powerpc64
> Acked-by: Michael Ellerman <mpe@ellerman.id.au> # powerpc64
> Tested-by: Tony Luck <tony.luck@intel.com> # ia64

Reviewed-by: Petr Mladek <pmladek@suse.com>

Best Regards,
Petr
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Subject: [PATCH] net: tulip: Convert timers to use timer_setup()
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2584335>

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: David Howells <dhowells@redhat.com>
Cc: Jarod Wilson <jarod@redhat.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Philippe Reynes <tremyfr@gmail.com>
Cc: "yuval.shaia@oracle.com" <yuval.shaia@oracle.com>
Cc: netdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
---
This requires commit 686fef928bba ("timer: Prepare to change timer
callback argument type") in v4.14-rc3, but should be otherwise
stand-alone.
---
 drivers/net/ethernet/dec/tulip/de4x5.c       | 13 ++++++-------
 drivers/net/ethernet/dec/tulip/dmfe.c        | 12 +++++-------
 drivers/net/ethernet/dec/tulip/interrupt.c   |  6 +++---
 drivers/net/ethernet/dec/tulip/pnic.c        |  6 +++---
 drivers/net/ethernet/dec/tulip/pnic2.c       |  6 +++---
 drivers/net/ethernet/dec/tulip/timer.c       | 12 ++++++------
 drivers/net/ethernet/dec/tulip/tulip.h       | 12 ++++++------
 drivers/net/ethernet/dec/tulip/tulip_core.c  | 14 ++++++--------
 drivers/net/ethernet/dec/tulip/uli526x.c     | 12 +++++-------
 drivers/net/ethernet/dec/tulip/winbond-840.c | 14 ++++++--------
 10 files changed, 49 insertions(+), 58 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index 0affee9c8aa2..a31b4df3e7ff 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -912,7 +912,7 @@ static int     de4x5_init(struct net_device *dev);
 static int     de4x5_sw_reset(struct net_device *dev);
 static int     de4x5_rx(struct net_device *dev);
 static int     de4x5_tx(struct net_device *dev);
-static void    de4x5_ast(struct net_device *dev);
+static void    de4x5_ast(struct timer_list *t);
 static int     de4x5_txur(struct net_device *dev);
 static int     de4x5_rx_ovfc(struct net_device *dev);
 
@@ -1147,9 +1147,7 @@ de4x5_hw_init(struct net_device *dev, u_long iobase, struct device *gendev)
 	lp->timeout = -1;
 	lp->gendev = gendev;
 	spin_lock_init(&lp->lock);
-	init_timer(&lp->timer);
-	lp->timer.function = (void (*)(unsigned long))de4x5_ast;
-	lp->timer.data = (unsigned long)dev;
+	timer_setup(&lp->timer, de4x5_ast, 0);
 	de4x5_parse_params(dev);
 
 	/*
@@ -1742,9 +1740,10 @@ de4x5_tx(struct net_device *dev)
 }
 
 static void
-de4x5_ast(struct net_device *dev)
+de4x5_ast(struct timer_list *t)
 {
-	struct de4x5_private *lp = netdev_priv(dev);
+	struct de4x5_private *lp = from_timer(lp, t, timer);
+	struct net_device *dev = dev_get_drvdata(lp->gendev);
 	int next_tick = DE4X5_AUTOSENSE_MS;
 	int dt;
 
@@ -2370,7 +2369,7 @@ autoconf_media(struct net_device *dev)
 	lp->media = INIT;
 	lp->tcount = 0;
 
-	de4x5_ast(dev);
+	de4x5_ast(&lp->timer);
 
 	return lp->media;
 }
diff --git a/drivers/net/ethernet/dec/tulip/dmfe.c b/drivers/net/ethernet/dec/tulip/dmfe.c
index 07e10a45beaa..17ef7a28873d 100644
--- a/drivers/net/ethernet/dec/tulip/dmfe.c
+++ b/drivers/net/ethernet/dec/tulip/dmfe.c
@@ -331,7 +331,7 @@ static void dmfe_phy_write_1bit(void __iomem *, u32);
 static u16 dmfe_phy_read_1bit(void __iomem *);
 static u8 dmfe_sense_speed(struct dmfe_board_info *);
 static void dmfe_process_mode(struct dmfe_board_info *);
-static void dmfe_timer(unsigned long);
+static void dmfe_timer(struct timer_list *);
 static inline u32 cal_CRC(unsigned char *, unsigned int, u8);
 static void dmfe_rx_packet(struct net_device *, struct dmfe_board_info *);
 static void dmfe_free_tx_pkt(struct net_device *, struct dmfe_board_info *);
@@ -596,10 +596,8 @@ static int dmfe_open(struct net_device *dev)
 	netif_wake_queue(dev);
 
 	/* set and active a timer process */
-	init_timer(&db->timer);
+	timer_setup(&db->timer, dmfe_timer, 0);
 	db->timer.expires = DMFE_TIMER_WUT + HZ * 2;
-	db->timer.data = (unsigned long)dev;
-	db->timer.function = dmfe_timer;
 	add_timer(&db->timer);
 
 	return 0;
@@ -1130,10 +1128,10 @@ static const struct ethtool_ops netdev_ethtool_ops = {
  *	Dynamic media sense, allocate Rx buffer...
  */
 
-static void dmfe_timer(unsigned long data)
+static void dmfe_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct dmfe_board_info *db = netdev_priv(dev);
+	struct dmfe_board_info *db = from_timer(db, t, timer);
+	struct net_device *dev = pci_get_drvdata(db->pdev);
 	void __iomem *ioaddr = db->ioaddr;
 	u32 tmp_cr8;
 	unsigned char tmp_cr12;
diff --git a/drivers/net/ethernet/dec/tulip/interrupt.c b/drivers/net/ethernet/dec/tulip/interrupt.c
index 8df80880ecaa..c1ca0765d56d 100644
--- a/drivers/net/ethernet/dec/tulip/interrupt.c
+++ b/drivers/net/ethernet/dec/tulip/interrupt.c
@@ -102,10 +102,10 @@ int tulip_refill_rx(struct net_device *dev)
 
 #ifdef CONFIG_TULIP_NAPI
 
-void oom_timer(unsigned long data)
+void oom_timer(struct timer_list *t)
 {
-        struct net_device *dev = (struct net_device *)data;
-	struct tulip_private *tp = netdev_priv(dev);
+	struct tulip_private *tp = from_timer(tp, t, oom_timer);
+
 	napi_schedule(&tp->napi);
 }
 
diff --git a/drivers/net/ethernet/dec/tulip/pnic.c b/drivers/net/ethernet/dec/tulip/pnic.c
index 7bcccf5cac7a..3fb39e32e1b4 100644
--- a/drivers/net/ethernet/dec/tulip/pnic.c
+++ b/drivers/net/ethernet/dec/tulip/pnic.c
@@ -84,10 +84,10 @@ void pnic_lnk_change(struct net_device *dev, int csr5)
 	}
 }
 
-void pnic_timer(unsigned long data)
+void pnic_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct tulip_private *tp = netdev_priv(dev);
+	struct tulip_private *tp = from_timer(tp, t, timer);
+	struct net_device *dev = tp->dev;
 	void __iomem *ioaddr = tp->base_addr;
 	int next_tick = 60*HZ;
 
diff --git a/drivers/net/ethernet/dec/tulip/pnic2.c b/drivers/net/ethernet/dec/tulip/pnic2.c
index 5895fc43f6e0..412adaa7fdf8 100644
--- a/drivers/net/ethernet/dec/tulip/pnic2.c
+++ b/drivers/net/ethernet/dec/tulip/pnic2.c
@@ -76,10 +76,10 @@
 #include <linux/delay.h>
 
 
-void pnic2_timer(unsigned long data)
+void pnic2_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct tulip_private *tp = netdev_priv(dev);
+	struct tulip_private *tp = from_timer(tp, t, timer);
+	struct net_device *dev = tp->dev;
 	void __iomem *ioaddr = tp->base_addr;
 	int next_tick = 60*HZ;
 
diff --git a/drivers/net/ethernet/dec/tulip/timer.c b/drivers/net/ethernet/dec/tulip/timer.c
index 523d9dde50a2..642e9dfc5451 100644
--- a/drivers/net/ethernet/dec/tulip/timer.c
+++ b/drivers/net/ethernet/dec/tulip/timer.c
@@ -137,10 +137,10 @@ void tulip_media_task(struct work_struct *work)
 }
 
 
-void mxic_timer(unsigned long data)
+void mxic_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct tulip_private *tp = netdev_priv(dev);
+	struct tulip_private *tp = from_timer(tp, t, timer);
+	struct net_device *dev = tp->dev;
 	void __iomem *ioaddr = tp->base_addr;
 	int next_tick = 60*HZ;
 
@@ -154,10 +154,10 @@ void mxic_timer(unsigned long data)
 }
 
 
-void comet_timer(unsigned long data)
+void comet_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct tulip_private *tp = netdev_priv(dev);
+	struct tulip_private *tp = from_timer(tp, t, timer);
+	struct net_device *dev = tp->dev;
 	int next_tick = 2*HZ;
 
 	if (tulip_debug > 1)
diff --git a/drivers/net/ethernet/dec/tulip/tulip.h b/drivers/net/ethernet/dec/tulip/tulip.h
index 06660dbc44b7..b458140aeaef 100644
--- a/drivers/net/ethernet/dec/tulip/tulip.h
+++ b/drivers/net/ethernet/dec/tulip/tulip.h
@@ -43,7 +43,7 @@ struct tulip_chip_table {
 	int io_size;
 	int valid_intrs;	/* CSR7 interrupt enable settings */
 	int flags;
-	void (*media_timer) (unsigned long);
+	void (*media_timer) (struct timer_list *);
 	work_func_t media_task;
 };
 
@@ -476,7 +476,7 @@ void t21142_lnk_change(struct net_device *dev, int csr5);
 
 /* PNIC2.c */
 void pnic2_lnk_change(struct net_device *dev, int csr5);
-void pnic2_timer(unsigned long data);
+void pnic2_timer(struct timer_list *t);
 void pnic2_start_nway(struct net_device *dev);
 void pnic2_lnk_change(struct net_device *dev, int csr5);
 
@@ -504,19 +504,19 @@ void tulip_find_mii (struct net_device *dev, int board_idx);
 /* pnic.c */
 void pnic_do_nway(struct net_device *dev);
 void pnic_lnk_change(struct net_device *dev, int csr5);
-void pnic_timer(unsigned long data);
+void pnic_timer(struct timer_list *t);
 
 /* timer.c */
 void tulip_media_task(struct work_struct *work);
-void mxic_timer(unsigned long data);
-void comet_timer(unsigned long data);
+void mxic_timer(struct timer_list *t);
+void comet_timer(struct timer_list *t);
 
 /* tulip_core.c */
 extern int tulip_debug;
 extern const char * const medianame[];
 extern const char tulip_media_cap[];
 extern const struct tulip_chip_table tulip_tbl[];
-void oom_timer(unsigned long data);
+void oom_timer(struct timer_list *t);
 extern u8 t21040_csr13[];
 
 static inline void tulip_start_rxtx(struct tulip_private *tp)
diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index 851b6d1f5a42..00d02a0967d0 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -123,10 +123,10 @@ int tulip_debug = TULIP_DEBUG;
 int tulip_debug = 1;
 #endif
 
-static void tulip_timer(unsigned long data)
+static void tulip_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct tulip_private *tp = netdev_priv(dev);
+	struct tulip_private *tp = from_timer(tp, t, timer);
+	struct net_device *dev = tp->dev;
 
 	if (netif_running(dev))
 		schedule_work(&tp->media_work);
@@ -505,7 +505,7 @@ static void tulip_up(struct net_device *dev)
 	tp->timer.expires = RUN_AT(next_tick);
 	add_timer(&tp->timer);
 #ifdef CONFIG_TULIP_NAPI
-	setup_timer(&tp->oom_timer, oom_timer, (unsigned long)dev);
+	timer_setup(&tp->oom_timer, oom_timer, 0);
 #endif
 }
 
@@ -780,8 +780,7 @@ static void tulip_down (struct net_device *dev)
 
 	spin_unlock_irqrestore (&tp->lock, flags);
 
-	setup_timer(&tp->timer, tulip_tbl[tp->chip_id].media_timer,
-		    (unsigned long)dev);
+	timer_setup(&tp->timer, tulip_tbl[tp->chip_id].media_timer, 0);
 
 	dev->if_port = tp->saved_if_port;
 
@@ -1470,8 +1469,7 @@ static int tulip_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	tp->csr0 = csr0;
 	spin_lock_init(&tp->lock);
 	spin_lock_init(&tp->mii_lock);
-	setup_timer(&tp->timer, tulip_tbl[tp->chip_id].media_timer,
-		    (unsigned long)dev);
+	timer_setup(&tp->timer, tulip_tbl[tp->chip_id].media_timer, 0);
 
 	INIT_WORK(&tp->media_work, tulip_tbl[tp->chip_id].media_task);
 
diff --git a/drivers/net/ethernet/dec/tulip/uli526x.c b/drivers/net/ethernet/dec/tulip/uli526x.c
index 7fc248efc4ba..488a744084c9 100644
--- a/drivers/net/ethernet/dec/tulip/uli526x.c
+++ b/drivers/net/ethernet/dec/tulip/uli526x.c
@@ -241,7 +241,7 @@ static void phy_write_1bit(struct uli526x_board_info *db, u32);
 static u16 phy_read_1bit(struct uli526x_board_info *db);
 static u8 uli526x_sense_speed(struct uli526x_board_info *);
 static void uli526x_process_mode(struct uli526x_board_info *);
-static void uli526x_timer(unsigned long);
+static void uli526x_timer(struct timer_list *t);
 static void uli526x_rx_packet(struct net_device *, struct uli526x_board_info *);
 static void uli526x_free_tx_pkt(struct net_device *, struct uli526x_board_info *);
 static void uli526x_reuse_skb(struct uli526x_board_info *, struct sk_buff *);
@@ -491,10 +491,8 @@ static int uli526x_open(struct net_device *dev)
 	netif_wake_queue(dev);
 
 	/* set and active a timer process */
-	init_timer(&db->timer);
+	timer_setup(&db->timer, uli526x_timer, 0);
 	db->timer.expires = ULI526X_TIMER_WUT + HZ * 2;
-	db->timer.data = (unsigned long)dev;
-	db->timer.function = uli526x_timer;
 	add_timer(&db->timer);
 
 	return 0;
@@ -1023,10 +1021,10 @@ static const struct ethtool_ops netdev_ethtool_ops = {
  *	Dynamic media sense, allocate Rx buffer...
  */
 
-static void uli526x_timer(unsigned long data)
+static void uli526x_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *) data;
-	struct uli526x_board_info *db = netdev_priv(dev);
+	struct uli526x_board_info *db = from_timer(db, t, timer);
+	struct net_device *dev = pci_get_drvdata(db->pdev);
 	struct uli_phy_ops *phy = &db->phy;
 	void __iomem *ioaddr = db->ioaddr;
  	unsigned long flags;
diff --git a/drivers/net/ethernet/dec/tulip/winbond-840.c b/drivers/net/ethernet/dec/tulip/winbond-840.c
index 32d7229544fa..f2e5e8fcb84a 100644
--- a/drivers/net/ethernet/dec/tulip/winbond-840.c
+++ b/drivers/net/ethernet/dec/tulip/winbond-840.c
@@ -327,7 +327,7 @@ static int  mdio_read(struct net_device *dev, int phy_id, int location);
 static void mdio_write(struct net_device *dev, int phy_id, int location, int value);
 static int  netdev_open(struct net_device *dev);
 static int  update_link(struct net_device *dev);
-static void netdev_timer(unsigned long data);
+static void netdev_timer(struct timer_list *t);
 static void init_rxtx_rings(struct net_device *dev);
 static void free_rxtx_rings(struct netdev_private *np);
 static void init_registers(struct net_device *dev);
@@ -655,10 +655,8 @@ static int netdev_open(struct net_device *dev)
 		netdev_dbg(dev, "Done netdev_open()\n");
 
 	/* Set the timer to check for link beat. */
-	init_timer(&np->timer);
-	np->timer.expires = jiffies + 1*HZ;
-	np->timer.data = (unsigned long)dev;
-	np->timer.function = netdev_timer;				/* timer handler */
+	timer_setup(&np->timer, netdev_timer, 0);
+	np->timer.expires = jiffies + 1*HZ;/* timer handler */
 	add_timer(&np->timer);
 	return 0;
 out_err:
@@ -774,10 +772,10 @@ static inline void update_csr6(struct net_device *dev, int new)
 		np->mii_if.full_duplex = 1;
 }
 
-static void netdev_timer(unsigned long data)
+static void netdev_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct netdev_private *np = netdev_priv(dev);
+	struct netdev_private *np = from_timer(np, t, timer);
+	struct net_device *dev = pci_get_drvdata(np->pci_dev);
 	void __iomem *ioaddr = np->base_addr;
 
 	if (debug > 2)
-- 
2.7.4


-- 
Kees Cook
Pixel Security


From - Thu Nov 08 21:40:28 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.network,gmane.linux.ports.parisc
Subject: [PATCH] net: tulip: de2104x: Convert timers to use
Date: Wed, 4 Oct 2017 17:50:48 -0700
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In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: "yuval.shaia@oracle.com" <yuval.shaia@oracle.com>
Cc: Tobias Klauser <tklauser@distanz.ch>
Cc: Jarod Wilson <jarod@redhat.com>
Cc: Philippe Reynes <tremyfr@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
---
This requires commit 686fef928bba ("timer: Prepare to change timer
callback argument type") in v4.14-rc3, but should be otherwise
stand-alone.
---
 drivers/net/ethernet/dec/tulip/de2104x.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/de2104x.c b/drivers/net/ethernet/dec/tulip/de2104x.c
index c87b8cc42963..13430f75496c 100644
--- a/drivers/net/ethernet/dec/tulip/de2104x.c
+++ b/drivers/net/ethernet/dec/tulip/de2104x.c
@@ -333,8 +333,8 @@ static void de_set_rx_mode (struct net_device *dev);
 static void de_tx (struct de_private *de);
 static void de_clean_rings (struct de_private *de);
 static void de_media_interrupt (struct de_private *de, u32 status);
-static void de21040_media_timer (unsigned long data);
-static void de21041_media_timer (unsigned long data);
+static void de21040_media_timer (struct timer_list *t);
+static void de21041_media_timer (struct timer_list *t);
 static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media);
 
 
@@ -959,9 +959,9 @@ static void de_next_media (struct de_private *de, const u32 *media,
 	}
 }
 
-static void de21040_media_timer (unsigned long data)
+static void de21040_media_timer (struct timer_list *t)
 {
-	struct de_private *de = (struct de_private *) data;
+	struct de_private *de = from_timer(de, t, media_timer);
 	struct net_device *dev = de->dev;
 	u32 status = dr32(SIAStatus);
 	unsigned int carrier;
@@ -1040,9 +1040,9 @@ static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media)
 	return 1;
 }
 
-static void de21041_media_timer (unsigned long data)
+static void de21041_media_timer (struct timer_list *t)
 {
-	struct de_private *de = (struct de_private *) data;
+	struct de_private *de = from_timer(de, t, media_timer);
 	struct net_device *dev = de->dev;
 	u32 status = dr32(SIAStatus);
 	unsigned int carrier;
@@ -1999,12 +1999,9 @@ static int de_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	de->msg_enable = (debug < 0 ? DE_DEF_MSG_ENABLE : debug);
 	de->board_idx = board_idx;
 	spin_lock_init (&de->lock);
-	init_timer(&de->media_timer);
-	if (de->de21040)
-		de->media_timer.function = de21040_media_timer;
-	else
-		de->media_timer.function = de21041_media_timer;
-	de->media_timer.data = (unsigned long) de;
+	timer_setup(&de->media_timer,
+		    de->de21040 ? de21040_media_timer : de21041_media_timer,
+		    0);
 
 	netif_carrier_off(dev);
 
-- 
2.7.4


-- 
Kees Cook
Pixel Security


From - Thu Nov 08 21:40:28 2018
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From: Tobias Klauser <tklauser@distanz.ch>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.network
Subject: Re: [PATCH] net: tulip: de2104x: Convert timers to use
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To: Kees Cook <keescook@chromium.org>
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On 2017-10-05 at 02:50:48 +0200, Kees Cook <keescook@chromium.org> wrote:
> In preparation for unconditionally passing the struct timer_list pointer to
> all timer callbacks, switch to using the new timer_setup() and from_timer()
> to pass the timer pointer explicitly.
> 
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: "yuval.shaia@oracle.com" <yuval.shaia@oracle.com>
> Cc: Tobias Klauser <tklauser@distanz.ch>
> Cc: Jarod Wilson <jarod@redhat.com>
> Cc: Philippe Reynes <tremyfr@gmail.com>
> Cc: netdev@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Signed-off-by: Kees Cook <keescook@chromium.org>

Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
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Sorry for the long cc list.  These are pretty trivial; they just remove
some unnecessary declarations across several arches.

---

Bjorn Helgaas (4):
      PCI: Remove redundant pcibios_set_master() declarations
      PCI: Remove redundant pci_dev, pci_bus, resource declarations
      PCI: Remove unused declarations
      alpha/PCI: Make pdev_save_srm_config() static


 arch/alpha/include/asm/pci.h            |    5 -----
 arch/alpha/kernel/pci.c                 |   11 ++++++++++-
 arch/alpha/kernel/pci_impl.h            |    8 --------
 arch/cris/include/asm/pci.h             |    9 ---------
 arch/frv/include/asm/pci.h              |    4 ----
 arch/ia64/include/asm/pci.h             |    4 ----
 arch/mips/include/asm/pci.h             |    4 ----
 arch/mn10300/include/asm/pci.h          |    4 ----
 arch/mn10300/unit-asb2305/pci-asb2305.h |    3 ---
 arch/parisc/include/asm/pci.h           |    8 --------
 arch/powerpc/include/asm/pci.h          |    2 --
 arch/sh/include/asm/pci.h               |    4 ----
 arch/sparc/include/asm/pci_32.h         |    2 --
 arch/x86/include/asm/pci.h              |    2 --
 arch/xtensa/include/asm/pci.h           |    2 --
 15 files changed, 10 insertions(+), 62 deletions(-)
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From - Thu Nov 08 21:40:28 2018
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From: Bjorn Helgaas <helgaas@kernel.org>
Newsgroups: gmane.linux.kernel.pci,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 1/4] PCI: Remove redundant pcibios_set_master() declarations
Date: Thu, 05 Oct 2017 15:38:42 -0500
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To: linux-pci@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.pci/66086>

From: Bjorn Helgaas <bhelgaas@google.com>

All users of pcibios_set_master() include <linux/pci.h>, which already has
a declaration.  Remove the unnecessary declarations from the <asm/pci.h>
files.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/alpha/include/asm/pci.h   |    2 --
 arch/cris/include/asm/pci.h    |    1 -
 arch/frv/include/asm/pci.h     |    2 --
 arch/mips/include/asm/pci.h    |    2 --
 arch/mn10300/include/asm/pci.h |    2 --
 arch/parisc/include/asm/pci.h  |    1 -
 arch/sh/include/asm/pci.h      |    2 --
 arch/x86/include/asm/pci.h     |    1 -
 8 files changed, 13 deletions(-)

diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h
index a06c24b3a2e1..777be3114fda 100644
--- a/arch/alpha/include/asm/pci.h
+++ b/arch/alpha/include/asm/pci.h
@@ -56,8 +56,6 @@ struct pci_controller {
 #define PCIBIOS_MIN_IO		alpha_mv.min_io_address
 #define PCIBIOS_MIN_MEM		alpha_mv.min_mem_address
 
-extern void pcibios_set_master(struct pci_dev *dev);
-
 /* IOMMU controls.  */
 
 /* The PCI address space does not equal the physical memory address space.
diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
index 6e505332b3e3..c6ac59d9f815 100644
--- a/arch/cris/include/asm/pci.h
+++ b/arch/cris/include/asm/pci.h
@@ -19,7 +19,6 @@
 void pcibios_config_init(void);
 struct pci_bus * pcibios_scan_root(int bus);
 
-void pcibios_set_master(struct pci_dev *dev);
 struct irq_routing_table *pcibios_get_irq_routing_table(void);
 int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
 
diff --git a/arch/frv/include/asm/pci.h b/arch/frv/include/asm/pci.h
index 809cfc6707ab..a6957014e74e 100644
--- a/arch/frv/include/asm/pci.h
+++ b/arch/frv/include/asm/pci.h
@@ -21,8 +21,6 @@ struct pci_dev;
 
 #define pcibios_assign_all_busses()	0
 
-extern void pcibios_set_master(struct pci_dev *dev);
-
 #ifdef CONFIG_MMU
 extern void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle);
 extern void consistent_free(void *vaddr);
diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h
index 52f551ee492d..0f8528c34753 100644
--- a/arch/mips/include/asm/pci.h
+++ b/arch/mips/include/asm/pci.h
@@ -106,8 +106,6 @@ extern unsigned long PCIBIOS_MIN_MEM;
 
 #define PCIBIOS_MIN_CARDBUS_IO	0x4000
 
-extern void pcibios_set_master(struct pci_dev *dev);
-
 #define HAVE_PCI_MMAP
 #define ARCH_GENERIC_PCI_MMAP_RESOURCE
 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index d27654902f28..bdacb618d6af 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -47,8 +47,6 @@ extern void unit_pci_init(void);
 #define PCIBIOS_MIN_IO		0xBE000004
 #define PCIBIOS_MIN_MEM		0xB8000000
 
-void pcibios_set_master(struct pci_dev *dev);
-
 /* Dynamic DMA mapping stuff.
  * i386 has everything mapped statically.
  */
diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index 1de1a3f412ec..b5730f83b941 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -161,7 +161,6 @@ extern struct pci_bios_ops *pci_bios;
 
 #ifdef CONFIG_PCI
 extern void pcibios_register_hba(struct pci_hba_data *);
-extern void pcibios_set_master(struct pci_dev *);
 #else
 static inline void pcibios_register_hba(struct pci_hba_data *x)
 {
diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h
index 17fa69bc814d..063c8003b169 100644
--- a/arch/sh/include/asm/pci.h
+++ b/arch/sh/include/asm/pci.h
@@ -68,8 +68,6 @@ struct pci_dev;
 #define HAVE_PCI_MMAP
 #define ARCH_GENERIC_PCI_MMAP_RESOURCE
 
-extern void pcibios_set_master(struct pci_dev *dev);
-
 /* Dynamic DMA mapping stuff.
  * SuperH has everything mapped statically like x86.
  */
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 473a7295ab10..645019085bb8 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -91,7 +91,6 @@ extern int pcibios_enabled;
 void pcibios_config_init(void);
 void pcibios_scan_root(int bus);
 
-void pcibios_set_master(struct pci_dev *dev);
 struct irq_routing_table *pcibios_get_irq_routing_table(void);
 int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
 



From - Thu Nov 08 21:40:28 2018
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From: Bjorn Helgaas <helgaas@kernel.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 2/4] PCI: Remove redundant pci_dev, pci_bus,
 resource declarations
Date: Thu, 05 Oct 2017 15:38:49 -0500
Lines: 168
Approved: news@gmane.org
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To: linux-pci@vger.kernel.org
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From: Bjorn Helgaas <bhelgaas@google.com>

<linux/pci.h> defines struct pci_bus and struct pci_dev and includes the
struct resource definition before including <asm/pci.h>.  Nobody includes
<asm/pci.h> directly, so they don't need their own declarations.

Remove the redundant struct pci_dev, pci_bus, resource declarations.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/alpha/include/asm/pci.h    |    3 ---
 arch/cris/include/asm/pci.h     |    2 --
 arch/frv/include/asm/pci.h      |    2 --
 arch/ia64/include/asm/pci.h     |    2 --
 arch/mips/include/asm/pci.h     |    2 --
 arch/mn10300/include/asm/pci.h  |    2 --
 arch/parisc/include/asm/pci.h   |    7 -------
 arch/powerpc/include/asm/pci.h  |    2 --
 arch/sh/include/asm/pci.h       |    2 --
 arch/sparc/include/asm/pci_32.h |    2 --
 arch/xtensa/include/asm/pci.h   |    2 --
 11 files changed, 28 deletions(-)

diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h
index 777be3114fda..0a10ff93b174 100644
--- a/arch/alpha/include/asm/pci.h
+++ b/arch/alpha/include/asm/pci.h
@@ -12,9 +12,6 @@
  * The following structure is used to manage multiple PCI busses.
  */
 
-struct pci_dev;
-struct pci_bus;
-struct resource;
 struct pci_iommu_arena;
 struct page;
 
diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
index c6ac59d9f815..8ea640560a46 100644
--- a/arch/cris/include/asm/pci.h
+++ b/arch/cris/include/asm/pci.h
@@ -32,8 +32,6 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
 #include <linux/string.h>
 #include <asm/io.h>
 
-struct pci_dev;
-
 /* The PCI address space does equal the physical memory
  * address space.  The networking and block device layers use
  * this boolean for bounce buffer decisions.
diff --git a/arch/frv/include/asm/pci.h b/arch/frv/include/asm/pci.h
index a6957014e74e..895af9d558ba 100644
--- a/arch/frv/include/asm/pci.h
+++ b/arch/frv/include/asm/pci.h
@@ -17,8 +17,6 @@
 #include <linux/scatterlist.h>
 #include <asm-generic/pci.h>
 
-struct pci_dev;
-
 #define pcibios_assign_all_busses()	0
 
 #ifdef CONFIG_MMU
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index 6459f2d46200..8c4b37f6be3d 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -31,8 +31,6 @@ struct pci_vector_struct {
 
 void pcibios_config_init(void);
 
-struct pci_dev;
-
 /*
  * PCI_DMA_BUS_IS_PHYS should be set to 1 if there is _necessarily_ a direct
  * correspondence between device bus addresses and CPU physical addresses.
diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h
index 0f8528c34753..2339f42f047a 100644
--- a/arch/mips/include/asm/pci.h
+++ b/arch/mips/include/asm/pci.h
@@ -121,8 +121,6 @@ extern unsigned long PCIBIOS_MIN_MEM;
 #include <linux/string.h>
 #include <asm/io.h>
 
-struct pci_dev;
-
 /*
  * The PCI address space does equal the physical memory address space.
  * The networking and block device layers use this boolean for bounce
diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index bdacb618d6af..5b75a1b2c4f6 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -57,8 +57,6 @@ extern void unit_pci_init(void);
 #include <linux/string.h>
 #include <asm/io.h>
 
-struct pci_dev;
-
 /* The PCI address space does equal the physical memory
  * address space.  The networking and block device layers use
  * this boolean for bounce buffer decisions.
diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index b5730f83b941..8cc009e26a28 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -86,13 +86,6 @@ struct pci_hba_data {
 #define PCI_F_EXTEND		0UL
 #endif /* !CONFIG_64BIT */
 
-/*
-** KLUGE: linux/pci.h include asm/pci.h BEFORE declaring struct pci_bus
-** (This eliminates some of the warnings).
-*/
-struct pci_bus;
-struct pci_dev;
-
 /*
  * If the PCI device's view of memory is the same as the CPU's view of memory,
  * PCI_DMA_BUS_IS_PHYS is true.  The networking and block device layers use
diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index c8975dac535f..8dc32eacc97c 100644
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -28,8 +28,6 @@
 #define PCIBIOS_MIN_IO		0x1000
 #define PCIBIOS_MIN_MEM		0x10000000
 
-struct pci_dev;
-
 /* Values for the `which' argument to sys_pciconfig_iobase syscall.  */
 #define IOBASE_BRIDGE_NUMBER	0
 #define IOBASE_MEMORY		1
diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h
index 063c8003b169..6c2d68e08a57 100644
--- a/arch/sh/include/asm/pci.h
+++ b/arch/sh/include/asm/pci.h
@@ -63,8 +63,6 @@ extern int pci_is_66mhz_capable(struct pci_channel *hose,
 
 extern unsigned long PCIBIOS_MIN_IO, PCIBIOS_MIN_MEM;
 
-struct pci_dev;
-
 #define HAVE_PCI_MMAP
 #define ARCH_GENERIC_PCI_MMAP_RESOURCE
 
diff --git a/arch/sparc/include/asm/pci_32.h b/arch/sparc/include/asm/pci_32.h
index b7c092df3134..8b0e26232c78 100644
--- a/arch/sparc/include/asm/pci_32.h
+++ b/arch/sparc/include/asm/pci_32.h
@@ -20,8 +20,6 @@
  */
 #define PCI_DMA_BUS_IS_PHYS	(0)
 
-struct pci_dev;
-
 #endif /* __KERNEL__ */
 
 #ifndef CONFIG_LEON_PCI
diff --git a/arch/xtensa/include/asm/pci.h b/arch/xtensa/include/asm/pci.h
index e4f366a488d3..5c83798e3b2e 100644
--- a/arch/xtensa/include/asm/pci.h
+++ b/arch/xtensa/include/asm/pci.h
@@ -37,8 +37,6 @@ extern struct pci_controller* pcibios_alloc_controller(void);
 #include <linux/string.h>
 #include <asm/io.h>
 
-struct pci_dev;

From - Thu Nov 08 21:40:28 2018
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From: Bjorn Helgaas <helgaas@kernel.org>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.pci,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sparc,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 3/4] PCI: Remove unused declarations
Date: Thu, 05 Oct 2017 15:38:56 -0500
Lines: 79
Approved: news@gmane.org
Message-ID: <20171005203856.18300.62381.stgit@bhelgaas-glaptop.roam.corp.google.com>
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From: Bjorn Helgaas <bhelgaas@google.com>

Remove these unused declarations:

  pcibios_config_init()              # never defined anywhere
  pcibios_scan_root()                # only defined by x86
  pcibios_get_irq_routing_table()    # only defined by x86
  pcibios_set_irq_routing()          # only defined by x86

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/cris/include/asm/pci.h             |    6 ------
 arch/ia64/include/asm/pci.h             |    2 --
 arch/mn10300/unit-asb2305/pci-asb2305.h |    3 ---
 arch/x86/include/asm/pci.h              |    1 -
 4 files changed, 12 deletions(-)

diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
index 8ea640560a46..141337bf16bc 100644
--- a/arch/cris/include/asm/pci.h
+++ b/arch/cris/include/asm/pci.h
@@ -16,12 +16,6 @@
 
 #define PCIBIOS_MIN_CARDBUS_IO	0x4000
 
-void pcibios_config_init(void);
-struct pci_bus * pcibios_scan_root(int bus);
-
-struct irq_routing_table *pcibios_get_irq_routing_table(void);
-int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
-
 /* Dynamic DMA mapping stuff.
  * i386 has everything mapped statically.
  */
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index 8c4b37f6be3d..915531ede6a5 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -29,8 +29,6 @@ struct pci_vector_struct {
 #define PCIBIOS_MIN_IO		0x1000
 #define PCIBIOS_MIN_MEM		0x10000000
 
-void pcibios_config_init(void);
-
 /*
  * PCI_DMA_BUS_IS_PHYS should be set to 1 if there is _necessarily_ a direct
  * correspondence between device bus addresses and CPU physical addresses.
diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.h b/arch/mn10300/unit-asb2305/pci-asb2305.h
index 96c484b12226..0667f613b023 100644
--- a/arch/mn10300/unit-asb2305/pci-asb2305.h
+++ b/arch/mn10300/unit-asb2305/pci-asb2305.h
@@ -30,9 +30,6 @@ extern void pcibios_resource_survey(void);
 
 extern struct pci_ops *pci_root_ops;
 
-extern struct irq_routing_table *pcibios_get_irq_routing_table(void);
-extern int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
-
 /* pci-irq.c */
 
 struct irq_info {
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 645019085bb8..53873a875c01 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -88,7 +88,6 @@ extern unsigned long pci_mem_start;
 #define PCIBIOS_MIN_CARDBUS_IO	0x4000
 
 extern int pcibios_enabled;
-void pcibios_config_init(void);
 void pcibios_scan_root(int bus);
 
 struct irq_routing_table *pcibios_get_irq_routing_table(void);

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From - Thu Nov 08 21:40:28 2018
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X-Mozilla-Keys:                                                                                 
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From: Bjorn Helgaas <helgaas@kernel.org>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.pci,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 4/4] alpha/PCI: Make pdev_save_srm_config() static
Date: Thu, 05 Oct 2017 15:39:06 -0500
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From: Bjorn Helgaas <bhelgaas@google.com>

pdev_save_srm_config() and struct pdev_srm_saved_conf are only used in
arch/alpha/kernel/pci.c, so make them static there.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/alpha/kernel/pci.c      |   11 ++++++++++-
 arch/alpha/kernel/pci_impl.h |    8 --------
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 564114eb85e1..16b67621a0d5 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -196,9 +196,16 @@ pcibios_init(void)
 subsys_initcall(pcibios_init);
 
 #ifdef ALPHA_RESTORE_SRM_SETUP
+/* Store PCI device configuration left by SRM here. */
+struct pdev_srm_saved_conf
+{
+	struct pdev_srm_saved_conf *next;
+	struct pci_dev *dev;
+};
+
 static struct pdev_srm_saved_conf *srm_saved_configs;
 
-void pdev_save_srm_config(struct pci_dev *dev)
+static void pdev_save_srm_config(struct pci_dev *dev)
 {
 	struct pdev_srm_saved_conf *tmp;
 	static int printed = 0;
@@ -238,6 +245,8 @@ pci_restore_srm_config(void)
 		pci_restore_state(tmp->dev);
 	}
 }
+#else
+#define pdev_save_srm_config(dev)	do {} while (0)
 #endif
 
 void pcibios_fixup_bus(struct pci_bus *bus)
diff --git a/arch/alpha/kernel/pci_impl.h b/arch/alpha/kernel/pci_impl.h
index 2b0ac429f5eb..65adea0d3d78 100644
--- a/arch/alpha/kernel/pci_impl.h
+++ b/arch/alpha/kernel/pci_impl.h
@@ -156,16 +156,8 @@ struct pci_iommu_arena
 #endif
 
 #ifdef ALPHA_RESTORE_SRM_SETUP
-/* Store PCI device configuration left by SRM here. */
-struct pdev_srm_saved_conf
-{
-	struct pdev_srm_saved_conf *next;
-	struct pci_dev *dev;
-};

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Subject: Re: [PATCH 1/4] PCI: Remove redundant pcibios_set_master()
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/26690>

On Thu, 5 Oct 2017, Bjorn Helgaas wrote:

> From: Bjorn Helgaas <bhelgaas@google.com>
> 
> All users of pcibios_set_master() include <linux/pci.h>, which already has
> a declaration.  Remove the unnecessary declarations from the <asm/pci.h>
> files.
> 
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
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From - Thu Nov 08 21:40:28 2018
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Subject: Re: [PATCH 3/4] PCI: Remove unused declarations
Date: Thu, 5 Oct 2017 22:57:53 +0200 (CEST)
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To: Bjorn Helgaas <helgaas@kernel.org>
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On Thu, 5 Oct 2017, Bjorn Helgaas wrote:

> From: Bjorn Helgaas <bhelgaas@google.com>
> 
> Remove these unused declarations:
> 
>   pcibios_config_init()              # never defined anywhere
>   pcibios_scan_root()                # only defined by x86
>   pcibios_get_irq_routing_table()    # only defined by x86
>   pcibios_set_irq_routing()          # only defined by x86
> 
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
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From - Thu Nov 08 21:40:28 2018
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Subject: Re: [PATCH 2/4] PCI: Remove redundant pci_dev, pci_bus, resource
 declarations
Date: Fri, 6 Oct 2017 09:27:13 +0200
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To: Bjorn Helgaas <helgaas@kernel.org>
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On Thu, Oct 05, 2017 at 03:38:49PM -0500, Bjorn Helgaas wrote:
> From: Bjorn Helgaas <bhelgaas@google.com>
> 
> <linux/pci.h> defines struct pci_bus and struct pci_dev and includes the
> struct resource definition before including <asm/pci.h>.  Nobody includes
> <asm/pci.h> directly, so they don't need their own declarations.
> 
> Remove the redundant struct pci_dev, pci_bus, resource declarations.
> 
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
> ---
>  arch/alpha/include/asm/pci.h    |    3 ---
>  arch/cris/include/asm/pci.h     |    2 --

For what it's worth, for the cris changes:

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

>  arch/frv/include/asm/pci.h      |    2 --
>  arch/ia64/include/asm/pci.h     |    2 --
>  arch/mips/include/asm/pci.h     |    2 --
>  arch/mn10300/include/asm/pci.h  |    2 --
>  arch/parisc/include/asm/pci.h   |    7 -------
>  arch/powerpc/include/asm/pci.h  |    2 --
>  arch/sh/include/asm/pci.h       |    2 --
>  arch/sparc/include/asm/pci_32.h |    2 --
>  arch/xtensa/include/asm/pci.h   |    2 --
>  11 files changed, 28 deletions(-)

/^JN - Jesper Nilsson
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From - Thu Nov 08 21:40:28 2018
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Subject: Re: [PATCH 1/4] PCI: Remove redundant pcibios_set_master()
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On Thu, Oct 05, 2017 at 03:38:42PM -0500, Bjorn Helgaas wrote:
> From: Bjorn Helgaas <bhelgaas@google.com>
> 
> All users of pcibios_set_master() include <linux/pci.h>, which already has
> a declaration.  Remove the unnecessary declarations from the <asm/pci.h>
> files.
> 
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
> ---
>  arch/alpha/include/asm/pci.h   |    2 --
>  arch/cris/include/asm/pci.h    |    1 -

For what it's worth, for the cris changes:

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

>  arch/frv/include/asm/pci.h     |    2 --
>  arch/mips/include/asm/pci.h    |    2 --
>  arch/mn10300/include/asm/pci.h |    2 --
>  arch/parisc/include/asm/pci.h  |    1 -
>  arch/sh/include/asm/pci.h      |    2 --
>  arch/x86/include/asm/pci.h     |    1 -
>  8 files changed, 13 deletions(-)

/^JN - Jesper Nilsson
-- 
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From - Thu Nov 08 21:40:28 2018
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On Sun, Oct 01, 2017 at 11:02:01AM -0400, John David Anglin wrote:
> On 2017-10-01, at 7:46 AM, Tom Bogendoerfer wrote:
> 
> > does it have a working graphics card ? 
> 
> It's a FireGL T2:
> 80:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV350 GL [FireGL T2] (rev 80)

perfect.

Took me a little bit longer to play with a method to dump quicksilver
register. Since I don't have a working HP-UX 11 box, I looked how
to do it with Linux from userspace.

dd if=/dev/mem doesn't work, because it will only give access to memory.

So I recycled my small dump program, which I only used on Linux/MIPS
so far. The nice thing is, it also works for Linux/PARISC:-)

Now the challenge is to see, if it compiles and works on HP-UX the same
way...

A correct dump should start with

3c10b412 4601b002 10000006 20c00000 0c000040 00000000 00000000 00000000

Thomas.


#include <sys/types.h>
#define __USE_LARGEFILE64
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>

#define QUICKSILVER_ADDR 0xfffffffffed28000

int main(int argc, char **argv)
{
	int fd;
	int i;
	unsigned int *agp;

	fd = open("/dev/mem", O_RDWR|O_SYNC);
	agp = mmap64(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd,
		    QUICKSILVER_ADDR);
	if (agp == (void *)-1) {
		perror ("mmap");
		exit (1);
	}

	for (i = 0; i < 0x800 / 4; i++) {
		printf ("%08x ", agp[i]);
		if ((i & 7) == 7) {
			printf ("\n");
		}
	}
	close (fd);
}



-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]
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To: Bjorn Helgaas <helgaas@kernel.org>
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* Bjorn Helgaas <helgaas@kernel.org> wrote:

> Sorry for the long cc list.  These are pretty trivial; they just remove
> some unnecessary declarations across several arches.
> 
> ---
> 
> Bjorn Helgaas (4):
>       PCI: Remove redundant pcibios_set_master() declarations
>       PCI: Remove redundant pci_dev, pci_bus, resource declarations
>       PCI: Remove unused declarations
>       alpha/PCI: Make pdev_save_srm_config() static
> 
> 
>  arch/alpha/include/asm/pci.h            |    5 -----
>  arch/alpha/kernel/pci.c                 |   11 ++++++++++-
>  arch/alpha/kernel/pci_impl.h            |    8 --------
>  arch/cris/include/asm/pci.h             |    9 ---------
>  arch/frv/include/asm/pci.h              |    4 ----
>  arch/ia64/include/asm/pci.h             |    4 ----
>  arch/mips/include/asm/pci.h             |    4 ----
>  arch/mn10300/include/asm/pci.h          |    4 ----
>  arch/mn10300/unit-asb2305/pci-asb2305.h |    3 ---
>  arch/parisc/include/asm/pci.h           |    8 --------
>  arch/powerpc/include/asm/pci.h          |    2 --
>  arch/sh/include/asm/pci.h               |    4 ----
>  arch/sparc/include/asm/pci_32.h         |    2 --
>  arch/x86/include/asm/pci.h              |    2 --
>  arch/xtensa/include/asm/pci.h           |    2 --
>  15 files changed, 10 insertions(+), 62 deletions(-)

Nice cleanups! For the whole series:

  Reviewed-by: Ingo Molnar <mingo@kernel.org>

Thanks,

	Ingo
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On 2017-10-06, at 10:39 AM, Tom Bogendoerfer wrote:

> Now the challenge is to see, if it compiles and works on HP-UX the same
> way...

So far, I'm not having much success.  The system isn't setup with any additional tools
and only HP's 32 and 64-bit non-ansi compilers are available.  So, there are issues with
64-bit constants.  Never set up networking as well.

Using 64-bit "cc +DA2.0W", I get:

mmap: Invalid argument

If I change QUICKSILVER_ADDR to 0, I get:

mmap: No such device

So, I think mmap can't map "/dev/mem".

I tried dd with skip but this gives a bad address.  Maybe lseek + read would work in C code to copy page.

Dave
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On 2017-10-08, at 12:22 PM, John David Anglin wrote:

> mmap: Invalid argument

Same occurs when gcc is used to compile program.

Dave
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From - Thu Nov 08 21:40:29 2018
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Subject: Re: [PATCH 1/4] PCI: Remove redundant pcibios_set_master()
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        Matt Turner <mattst88@gmail.com>,
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        linux-xtensa@linux-xtensa.org, Mikael Starvik <starv
To: Bjorn Helgaas <helgaas@kernel.org>
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On Thu, Oct 05, 2017 at 03:38:42PM -0500, Bjorn Helgaas wrote:

> From: Bjorn Helgaas <bhelgaas@google.com>
> 
> All users of pcibios_set_master() include <linux/pci.h>, which already has
> a declaration.  Remove the unnecessary declarations from the <asm/pci.h>
> files.
> 
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
> ---
>  arch/alpha/include/asm/pci.h   |    2 --
>  arch/cris/include/asm/pci.h    |    1 -
>  arch/frv/include/asm/pci.h     |    2 --
>  arch/mips/include/asm/pci.h    |    2 --
>  arch/mn10300/include/asm/pci.h |    2 --
>  arch/parisc/include/asm/pci.h  |    1 -
>  arch/sh/include/asm/pci.h      |    2 --
>  arch/x86/include/asm/pci.h     |    1 -
>  8 files changed, 13 deletions(-)

For MIPS:

Acked-by: Ralf Baechle <ralf@linux-mips.org>

  Ralf
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Subject: Re: [PATCH 2/4] PCI: Remove redundant pci_dev, pci_bus, resource
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To: Bjorn Helgaas <helgaas@kernel.org>
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On Thu, Oct 05, 2017 at 03:38:49PM -0500, Bjorn Helgaas wrote:

> From: Bjorn Helgaas <bhelgaas@google.com>
> 
> <linux/pci.h> defines struct pci_bus and struct pci_dev and includes the
> struct resource definition before including <asm/pci.h>.  Nobody includes
> <asm/pci.h> directly, so they don't need their own declarations.
> 
> Remove the redundant struct pci_dev, pci_bus, resource declarations.
> 
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

For MIPS:

Acked-by: Ralf Baechle <ralf@linux-mips.org>

  Ralf
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On 08.10.2017 18:41, John David Anglin wrote:
> On 2017-10-08, at 12:22 PM, John David Anglin wrote:
>> mmap: Invalid argument
> Same occurs when gcc is used to compile program.

Maybe PDC does not reset (all of?) those registers when it reboots?
If so, maybe it's possible to boot into Linux afterwards and get the registers from there?

Or, even better, add some code to palo and boot into palo to print out
the wanted registers?

Helge
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From: Tom Bogendoerfer <tsbogend@alpha.franken.de>
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Subject: Re: HP-UX for C8000
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On Mon, Oct 09, 2017 at 05:34:41PM +0200, Helge Deller wrote:
> Or, even better, add some code to palo and boot into palo to print out
> the wanted registers?

it might be easier to use adb or kernel debugger. As I don't have
any HP-UX box handy right now, I'm not able to give instructions.

If HP-UX supports load able kernel modules, that would be another
option.

Thomas.

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On 2017-10-09, at 11:34 AM, Helge Deller wrote:

> Maybe PDC does not reset (all of?) those registers when it reboots?
> If so, maybe it's possible to boot into Linux afterwards and get the =
registers from there?

Attached is dump from linux after rebooting from hpux.

Dave
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John David Anglin	dave.anglin@bell.net



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3c10b412 4601b002 10000006 20c00000 0c000040 00000000 00000000 00000000 
00000000 00000000 00000000 00000000 00000000 a0000000 00000000 00000000 
54000000 00000000 00000000 00000000 00000000 00000000 80ff0000 00000000 
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
03000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
02003500 fb6f002f 00000000 00000000 00000000 000cff17 00000000 00000000 
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00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
12000100 00000000 48000000 00000000 00000000 00000000 00000000 00000000 
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On 2017-10-09, at 12:05 PM, Tom Bogendoerfer wrote:

> On Mon, Oct 09, 2017 at 05:34:41PM +0200, Helge Deller wrote:
>> Or, even better, add some code to palo and boot into palo to print out
>> the wanted registers?
> 
> it might be easier to use adb or kernel debugger.

I tried adb but I didn't have any luck.  It's not clear how 64-bit addresses are handled
and I suspect it can't access registers in /dev/mem since it wasn't possible to access
them with pread.

Dave
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On Mon, Oct 09, 2017 at 12:30:36PM -0400, John David Anglin wrote:
> On 2017-10-09, at 11:34 AM, Helge Deller wrote:
> 
> > Maybe PDC does not reset (all of?) those registers when it reboots?
> > If so, maybe it's possible to boot into Linux afterwards and get the registers from there?
> 
> Attached is dump from linux after rebooting from hpux.

thanks, but since firmware will sets all chipset stuff from scratch, there
is no new information in that dump.

Thomas.

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On 2017-10-09, at 1:41 PM, Tom Bogendoerfer wrote:

> On Mon, Oct 09, 2017 at 12:30:36PM -0400, John David Anglin wrote:
>> On 2017-10-09, at 11:34 AM, Helge Deller wrote:
>> 
>>> Maybe PDC does not reset (all of?) those registers when it reboots?
>>> If so, maybe it's possible to boot into Linux afterwards and get the registers from there?
>> 
>> Attached is dump from linux after rebooting from hpux.
> 
> thanks, but since firmware will sets all chipset stuff from scratch, there
> is no new information in that dump.

After searching the internet, I don't think there's a way to read these registers from userspace on hpux.
It looks like writing a kernel module is the only way...

Dave
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On 2017-10-09, at 1:41 PM, Tom Bogendoerfer wrote:

> thanks, but since firmware will sets all chipset stuff from scratch, there
> is no new information in that dump.

Does this help:
https://opensource.apple.com/source/X11server/X11server-85.3/Xquartz/xorg-server-1.4.2-apple56/hw/xfree86/os-support/bus/zx1PCI.c.auto.html

Dave
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On Mon, Oct 09, 2017 at 08:56:40PM -0400, John David Anglin wrote:
> On 2017-10-09, at 1:41 PM, Tom Bogendoerfer wrote:
> 
> > thanks, but since firmware will sets all chipset stuff from scratch, there
> > is no new information in that dump.
> 
> Does this help:
> https://opensource.apple.com/source/X11server/X11server-85.3/Xquartz/xorg-server-1.4.2-apple56/hw/xfree86/os-support/bus/zx1PCI.c.auto.html

unfortunatly no. The part about setting up dma mappings and other init
code isn't in there. Nevertheless it's an interesting file, I didn't
know before.

Does anybody have HP-UX ISOs ? I have enough spare disks and C8000 to
run one with HP-UX. The problem is I don't have a mediakit and can't
find one on ebay...

Thomas.

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On 2017-10-10, at 2:46 PM, Tom Bogendoerfer wrote:

> Does anybody have HP-UX ISOs ? I have enough spare disks and C8000 to
> run one with HP-UX. The problem is I don't have a mediakit and can't
> find one on ebay...

I believe I have ISOs but I'll have to dig.  I'll look next weekend.

Dave
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On Sat, Aug 19, 2017 at 10:38:41PM +0530, Arvind Yadav wrote:
> parisc_device_id are not supposed to change at runtime. All functions
> working with parisc_device_id provided by <asm/parisc-device.h> work
> with
> const parisc_device_id. So mark the non-const structs as const.
> 
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
> ---
>  drivers/parport/parport_gsc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

This has already been done by f0973443bef7 ("parisc/parport_gsc: Fix section mismatches")

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I noticed the following scsi boot issues with v4.13.7:

[    8.961944] scsi 3:0:0:0: Direct-Access     WD       My Passport 0748 1022 PQ: 0 ANSI: 
6
[    8.964334] scsi 3:0:0:1: Enclosure         WD       SES Device       1022 PQ: 0 ANSI: 
6
[    9.062546] sd 3:0:0:0: [sda] Spinning up disk...
[   10.080033] .[   10.436010] scsi 2:0:0:0: Direct-Access     SEAGATE  ST3300007LC      D705 PQ
: 0 ANSI: 3
[   10.436010] scsi target2:0:0: tagged command queuing enabled, command queue depth 16.
[   10.436010] scsi target2:0:0: Beginning Domain Validation
[   10.443210] scsi target2:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 31)
[   10.451755] scsi target2:0:0: Ending Domain Validation
[   10.453274] sd 2:0:0:0: [sdb] 585937500 512-byte logical blocks: (300 GB/279 GiB)
[   10.458212] sd 2:0:0:0: [sdb] Write Protect is off
[   10.458212] sd 2:0:0:0: [sdb] Mode Sense: ab 00 10 08
[   10.460232] sd 2:0:0:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO 
and FUA
[   10.493071]  sdb: sdb1
[   10.528764] sd 2:0:0:0: [sdb] Attached SCSI disk
[   12.053526] scsi 3:0:0:1: Wrong diagnostic page; asked for 1 got 8
[   12.053707] scsi 3:0:0:1: Failed to get diagnostic page 0xffffffea
[   12.053696] ready
[   12.054129] scsi 3:0:0:1: Failed to bind enclosure -19
[   12.054363] ses 3:0:0:1: Attached Enclosure device
[   12.054495] sd 3:0:0:0: [sda] 3906963456 512-byte logical blocks: (2.00 TB/1.82 TiB)
[   12.062494] sd 3:0:0:0: [sda] Write Protect is off
[   12.062494] sd 3:0:0:0: [sda] Mode Sense: 47 00 10 08[   12.063619] sd 3:0:0:0: [sda] No Caching mode page found
[   12.066860] sd 3:0:0:0: [sda] Assuming drive cache: write through
[   12.104257]  sda: sda1 sda2
[   12.151862] sd 3:0:0:0: [sda] Attached SCSI disk

Haven't seen this before.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:40:30 2018
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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.kernel,gmane.linux.network,gmane.linux.ports.parisc
Subject: [PATCH 14/58] net: tulip: de2104x: Convert timers to use timer_setup()
Date: Mon, 16 Oct 2017 17:28:58 -0700
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Approved: news@gmane.org
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Cc: Kees Cook <keescook@chromium.org>,
        "yuval.shaia@oracle.com" <yuval.shaia@oracle.com>,
        Tobias Klauser <tklauser@distanz.ch>,
        Jarod Wilson <jarod@redhat.com>,
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        linux-parisc@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
        linux-kernel@vger.kernel.org
To: "David S. Miller" <davem@davemloft.net>
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In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: "yuval.shaia@oracle.com" <yuval.shaia@oracle.com>
Cc: Tobias Klauser <tklauser@distanz.ch>
Cc: Jarod Wilson <jarod@redhat.com>
Cc: Philippe Reynes <tremyfr@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
---
 drivers/net/ethernet/dec/tulip/de2104x.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/de2104x.c b/drivers/net/ethernet/dec/tulip/de2104x.c
index c87b8cc42963..13430f75496c 100644
--- a/drivers/net/ethernet/dec/tulip/de2104x.c
+++ b/drivers/net/ethernet/dec/tulip/de2104x.c
@@ -333,8 +333,8 @@ static void de_set_rx_mode (struct net_device *dev);
 static void de_tx (struct de_private *de);
 static void de_clean_rings (struct de_private *de);
 static void de_media_interrupt (struct de_private *de, u32 status);
-static void de21040_media_timer (unsigned long data);
-static void de21041_media_timer (unsigned long data);
+static void de21040_media_timer (struct timer_list *t);
+static void de21041_media_timer (struct timer_list *t);
 static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media);
 
 
@@ -959,9 +959,9 @@ static void de_next_media (struct de_private *de, const u32 *media,
 	}
 }
 
-static void de21040_media_timer (unsigned long data)
+static void de21040_media_timer (struct timer_list *t)
 {
-	struct de_private *de = (struct de_private *) data;
+	struct de_private *de = from_timer(de, t, media_timer);
 	struct net_device *dev = de->dev;
 	u32 status = dr32(SIAStatus);
 	unsigned int carrier;
@@ -1040,9 +1040,9 @@ static unsigned int de_ok_to_advertise (struct de_private *de, u32 new_media)
 	return 1;
 }
 
-static void de21041_media_timer (unsigned long data)
+static void de21041_media_timer (struct timer_list *t)
 {
-	struct de_private *de = (struct de_private *) data;
+	struct de_private *de = from_timer(de, t, media_timer);
 	struct net_device *dev = de->dev;
 	u32 status = dr32(SIAStatus);
 	unsigned int carrier;
@@ -1999,12 +1999,9 @@ static int de_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	de->msg_enable = (debug < 0 ? DE_DEF_MSG_ENABLE : debug);
 	de->board_idx = board_idx;
 	spin_lock_init (&de->lock);
-	init_timer(&de->media_timer);
-	if (de->de21040)
-		de->media_timer.function = de21040_media_timer;
-	else
-		de->media_timer.function = de21041_media_timer;
-	de->media_timer.data = (unsigned long) de;
+	timer_setup(&de->media_timer,
+		    de->de21040 ? de21040_media_timer : de21041_media_timer,
+		    0);
 
 	netif_carrier_off(dev);
 
-- 
2.7.4



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From: Kees Cook <keescook@chromium.org>
Newsgroups: gmane.linux.kernel,gmane.linux.network,gmane.linux.ports.parisc
Subject: [PATCH 21/58] net: tulip: Convert timers to use timer_setup()
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Cc: Kees Cook <keescook@chromium.org>,
        David Howells <dhowells@redhat.com>,
        Jarod Wilson <jarod@redhat.com>,
        Stephen Hemminger <stephen@networkplumber.org>,
        Johannes Berg <johannes.berg@intel.com>,
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        netdev@vger.kernel.org, linux-parisc@vger.kernel.org,
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        linux-kernel@vger.kernel.org
To: "David S. Miller" <davem@davemloft.net>
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Xref: news.gmane.org gmane.linux.kernel:2594251 gmane.linux.network:496862 gmane.linux.ports.parisc:27927
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2594251>

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: David Howells <dhowells@redhat.com>
Cc: Jarod Wilson <jarod@redhat.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Philippe Reynes <tremyfr@gmail.com>
Cc: "yuval.shaia@oracle.com" <yuval.shaia@oracle.com>
Cc: netdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
---
 drivers/net/ethernet/dec/tulip/de4x5.c       | 12 ++++++------
 drivers/net/ethernet/dec/tulip/dmfe.c        | 10 +++++-----
 drivers/net/ethernet/dec/tulip/interrupt.c   |  6 +++---
 drivers/net/ethernet/dec/tulip/pnic.c        |  6 +++---
 drivers/net/ethernet/dec/tulip/pnic2.c       |  6 +++---
 drivers/net/ethernet/dec/tulip/timer.c       | 12 ++++++------
 drivers/net/ethernet/dec/tulip/tulip.h       | 12 ++++++------
 drivers/net/ethernet/dec/tulip/tulip_core.c  | 14 ++++++--------
 drivers/net/ethernet/dec/tulip/uli526x.c     | 10 +++++-----
 drivers/net/ethernet/dec/tulip/winbond-840.c | 10 +++++-----
 10 files changed, 48 insertions(+), 50 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index 299812e92db7..a31b4df3e7ff 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -912,7 +912,7 @@ static int     de4x5_init(struct net_device *dev);
 static int     de4x5_sw_reset(struct net_device *dev);
 static int     de4x5_rx(struct net_device *dev);
 static int     de4x5_tx(struct net_device *dev);
-static void    de4x5_ast(struct net_device *dev);
+static void    de4x5_ast(struct timer_list *t);
 static int     de4x5_txur(struct net_device *dev);
 static int     de4x5_rx_ovfc(struct net_device *dev);
 
@@ -1147,8 +1147,7 @@ de4x5_hw_init(struct net_device *dev, u_long iobase, struct device *gendev)
 	lp->timeout = -1;
 	lp->gendev = gendev;
 	spin_lock_init(&lp->lock);
-	setup_timer(&lp->timer, (void (*)(unsigned long))de4x5_ast,
-		    (unsigned long)dev);
+	timer_setup(&lp->timer, de4x5_ast, 0);
 	de4x5_parse_params(dev);
 
 	/*
@@ -1741,9 +1740,10 @@ de4x5_tx(struct net_device *dev)
 }
 
 static void
-de4x5_ast(struct net_device *dev)
+de4x5_ast(struct timer_list *t)
 {
-	struct de4x5_private *lp = netdev_priv(dev);
+	struct de4x5_private *lp = from_timer(lp, t, timer);
+	struct net_device *dev = dev_get_drvdata(lp->gendev);
 	int next_tick = DE4X5_AUTOSENSE_MS;
 	int dt;
 
@@ -2369,7 +2369,7 @@ autoconf_media(struct net_device *dev)
 	lp->media = INIT;
 	lp->tcount = 0;
 
-	de4x5_ast(dev);
+	de4x5_ast(&lp->timer);
 
 	return lp->media;
 }
diff --git a/drivers/net/ethernet/dec/tulip/dmfe.c b/drivers/net/ethernet/dec/tulip/dmfe.c
index 6585f737d08b..17ef7a28873d 100644
--- a/drivers/net/ethernet/dec/tulip/dmfe.c
+++ b/drivers/net/ethernet/dec/tulip/dmfe.c
@@ -331,7 +331,7 @@ static void dmfe_phy_write_1bit(void __iomem *, u32);
 static u16 dmfe_phy_read_1bit(void __iomem *);
 static u8 dmfe_sense_speed(struct dmfe_board_info *);
 static void dmfe_process_mode(struct dmfe_board_info *);
-static void dmfe_timer(unsigned long);
+static void dmfe_timer(struct timer_list *);
 static inline u32 cal_CRC(unsigned char *, unsigned int, u8);
 static void dmfe_rx_packet(struct net_device *, struct dmfe_board_info *);
 static void dmfe_free_tx_pkt(struct net_device *, struct dmfe_board_info *);
@@ -596,7 +596,7 @@ static int dmfe_open(struct net_device *dev)
 	netif_wake_queue(dev);
 
 	/* set and active a timer process */
-	setup_timer(&db->timer, dmfe_timer, (unsigned long)dev);
+	timer_setup(&db->timer, dmfe_timer, 0);
 	db->timer.expires = DMFE_TIMER_WUT + HZ * 2;
 	add_timer(&db->timer);
 
@@ -1128,10 +1128,10 @@ static const struct ethtool_ops netdev_ethtool_ops = {
  *	Dynamic media sense, allocate Rx buffer...
  */
 
-static void dmfe_timer(unsigned long data)
+static void dmfe_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct dmfe_board_info *db = netdev_priv(dev);
+	struct dmfe_board_info *db = from_timer(db, t, timer);
+	struct net_device *dev = pci_get_drvdata(db->pdev);
 	void __iomem *ioaddr = db->ioaddr;
 	u32 tmp_cr8;
 	unsigned char tmp_cr12;
diff --git a/drivers/net/ethernet/dec/tulip/interrupt.c b/drivers/net/ethernet/dec/tulip/interrupt.c
index 8df80880ecaa..c1ca0765d56d 100644
--- a/drivers/net/ethernet/dec/tulip/interrupt.c
+++ b/drivers/net/ethernet/dec/tulip/interrupt.c
@@ -102,10 +102,10 @@ int tulip_refill_rx(struct net_device *dev)
 
 #ifdef CONFIG_TULIP_NAPI
 
-void oom_timer(unsigned long data)
+void oom_timer(struct timer_list *t)
 {
-        struct net_device *dev = (struct net_device *)data;
-	struct tulip_private *tp = netdev_priv(dev);
+	struct tulip_private *tp = from_timer(tp, t, oom_timer);
+
 	napi_schedule(&tp->napi);
 }
 
diff --git a/drivers/net/ethernet/dec/tulip/pnic.c b/drivers/net/ethernet/dec/tulip/pnic.c
index 7bcccf5cac7a..3fb39e32e1b4 100644
--- a/drivers/net/ethernet/dec/tulip/pnic.c
+++ b/drivers/net/ethernet/dec/tulip/pnic.c
@@ -84,10 +84,10 @@ void pnic_lnk_change(struct net_device *dev, int csr5)
 	}
 }
 
-void pnic_timer(unsigned long data)
+void pnic_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct tulip_private *tp = netdev_priv(dev);
+	struct tulip_private *tp = from_timer(tp, t, timer);
+	struct net_device *dev = tp->dev;
 	void __iomem *ioaddr = tp->base_addr;
 	int next_tick = 60*HZ;
 
diff --git a/drivers/net/ethernet/dec/tulip/pnic2.c b/drivers/net/ethernet/dec/tulip/pnic2.c
index 5895fc43f6e0..412adaa7fdf8 100644
--- a/drivers/net/ethernet/dec/tulip/pnic2.c
+++ b/drivers/net/ethernet/dec/tulip/pnic2.c
@@ -76,10 +76,10 @@
 #include <linux/delay.h>
 
 
-void pnic2_timer(unsigned long data)
+void pnic2_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct tulip_private *tp = netdev_priv(dev);
+	struct tulip_private *tp = from_timer(tp, t, timer);
+	struct net_device *dev = tp->dev;
 	void __iomem *ioaddr = tp->base_addr;
 	int next_tick = 60*HZ;
 
diff --git a/drivers/net/ethernet/dec/tulip/timer.c b/drivers/net/ethernet/dec/tulip/timer.c
index 523d9dde50a2..642e9dfc5451 100644
--- a/drivers/net/ethernet/dec/tulip/timer.c
+++ b/drivers/net/ethernet/dec/tulip/timer.c
@@ -137,10 +137,10 @@ void tulip_media_task(struct work_struct *work)
 }
 
 
-void mxic_timer(unsigned long data)
+void mxic_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct tulip_private *tp = netdev_priv(dev);
+	struct tulip_private *tp = from_timer(tp, t, timer);
+	struct net_device *dev = tp->dev;
 	void __iomem *ioaddr = tp->base_addr;
 	int next_tick = 60*HZ;
 
@@ -154,10 +154,10 @@ void mxic_timer(unsigned long data)
 }
 
 
-void comet_timer(unsigned long data)
+void comet_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct tulip_private *tp = netdev_priv(dev);
+	struct tulip_private *tp = from_timer(tp, t, timer);
+	struct net_device *dev = tp->dev;
 	int next_tick = 2*HZ;
 
 	if (tulip_debug > 1)
diff --git a/drivers/net/ethernet/dec/tulip/tulip.h b/drivers/net/ethernet/dec/tulip/tulip.h
index 06660dbc44b7..b458140aeaef 100644
--- a/drivers/net/ethernet/dec/tulip/tulip.h
+++ b/drivers/net/ethernet/dec/tulip/tulip.h
@@ -43,7 +43,7 @@ struct tulip_chip_table {
 	int io_size;
 	int valid_intrs;	/* CSR7 interrupt enable settings */
 	int flags;
-	void (*media_timer) (unsigned long);
+	void (*media_timer) (struct timer_list *);
 	work_func_t media_task;
 };
 
@@ -476,7 +476,7 @@ void t21142_lnk_change(struct net_device *dev, int csr5);
 
 /* PNIC2.c */
 void pnic2_lnk_change(struct net_device *dev, int csr5);
-void pnic2_timer(unsigned long data);
+void pnic2_timer(struct timer_list *t);
 void pnic2_start_nway(struct net_device *dev);
 void pnic2_lnk_change(struct net_device *dev, int csr5);
 
@@ -504,19 +504,19 @@ void tulip_find_mii (struct net_device *dev, int board_idx);
 /* pnic.c */
 void pnic_do_nway(struct net_device *dev);
 void pnic_lnk_change(struct net_device *dev, int csr5);
-void pnic_timer(unsigned long data);
+void pnic_timer(struct timer_list *t);
 
 /* timer.c */
 void tulip_media_task(struct work_struct *work);
-void mxic_timer(unsigned long data);
-void comet_timer(unsigned long data);
+void mxic_timer(struct timer_list *t);
+void comet_timer(struct timer_list *t);
 
 /* tulip_core.c */
 extern int tulip_debug;
 extern const char * const medianame[];
 extern const char tulip_media_cap[];
 extern const struct tulip_chip_table tulip_tbl[];
-void oom_timer(unsigned long data);
+void oom_timer(struct timer_list *t);
 extern u8 t21040_csr13[];
 
 static inline void tulip_start_rxtx(struct tulip_private *tp)
diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index 851b6d1f5a42..00d02a0967d0 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -123,10 +123,10 @@ int tulip_debug = TULIP_DEBUG;
 int tulip_debug = 1;
 #endif
 
-static void tulip_timer(unsigned long data)
+static void tulip_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct tulip_private *tp = netdev_priv(dev);
+	struct tulip_private *tp = from_timer(tp, t, timer);
+	struct net_device *dev = tp->dev;
 
 	if (netif_running(dev))
 		schedule_work(&tp->media_work);
@@ -505,7 +505,7 @@ static void tulip_up(struct net_device *dev)
 	tp->timer.expires = RUN_AT(next_tick);
 	add_timer(&tp->timer);
 #ifdef CONFIG_TULIP_NAPI
-	setup_timer(&tp->oom_timer, oom_timer, (unsigned long)dev);
+	timer_setup(&tp->oom_timer, oom_timer, 0);
 #endif
 }
 
@@ -780,8 +780,7 @@ static void tulip_down (struct net_device *dev)
 
 	spin_unlock_irqrestore (&tp->lock, flags);
 
-	setup_timer(&tp->timer, tulip_tbl[tp->chip_id].media_timer,
-		    (unsigned long)dev);
+	timer_setup(&tp->timer, tulip_tbl[tp->chip_id].media_timer, 0);
 
 	dev->if_port = tp->saved_if_port;
 
@@ -1470,8 +1469,7 @@ static int tulip_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	tp->csr0 = csr0;
 	spin_lock_init(&tp->lock);
 	spin_lock_init(&tp->mii_lock);
-	setup_timer(&tp->timer, tulip_tbl[tp->chip_id].media_timer,
-		    (unsigned long)dev);
+	timer_setup(&tp->timer, tulip_tbl[tp->chip_id].media_timer, 0);
 
 	INIT_WORK(&tp->media_work, tulip_tbl[tp->chip_id].media_task);
 
diff --git a/drivers/net/ethernet/dec/tulip/uli526x.c b/drivers/net/ethernet/dec/tulip/uli526x.c
index 5fbbc0caba99..488a744084c9 100644
--- a/drivers/net/ethernet/dec/tulip/uli526x.c
+++ b/drivers/net/ethernet/dec/tulip/uli526x.c
@@ -241,7 +241,7 @@ static void phy_write_1bit(struct uli526x_board_info *db, u32);
 static u16 phy_read_1bit(struct uli526x_board_info *db);
 static u8 uli526x_sense_speed(struct uli526x_board_info *);
 static void uli526x_process_mode(struct uli526x_board_info *);
-static void uli526x_timer(unsigned long);
+static void uli526x_timer(struct timer_list *t);
 static void uli526x_rx_packet(struct net_device *, struct uli526x_board_info *);
 static void uli526x_free_tx_pkt(struct net_device *, struct uli526x_board_info *);
 static void uli526x_reuse_skb(struct uli526x_board_info *, struct sk_buff *);
@@ -491,7 +491,7 @@ static int uli526x_open(struct net_device *dev)
 	netif_wake_queue(dev);
 
 	/* set and active a timer process */
-	setup_timer(&db->timer, uli526x_timer, (unsigned long)dev);
+	timer_setup(&db->timer, uli526x_timer, 0);
 	db->timer.expires = ULI526X_TIMER_WUT + HZ * 2;
 	add_timer(&db->timer);
 
@@ -1021,10 +1021,10 @@ static const struct ethtool_ops netdev_ethtool_ops = {
  *	Dynamic media sense, allocate Rx buffer...
  */
 
-static void uli526x_timer(unsigned long data)
+static void uli526x_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *) data;
-	struct uli526x_board_info *db = netdev_priv(dev);
+	struct uli526x_board_info *db = from_timer(db, t, timer);
+	struct net_device *dev = pci_get_drvdata(db->pdev);
 	struct uli_phy_ops *phy = &db->phy;
 	void __iomem *ioaddr = db->ioaddr;
  	unsigned long flags;
diff --git a/drivers/net/ethernet/dec/tulip/winbond-840.c b/drivers/net/ethernet/dec/tulip/winbond-840.c
index 6f88d687b6d2..70cb2d689c2c 100644
--- a/drivers/net/ethernet/dec/tulip/winbond-840.c
+++ b/drivers/net/ethernet/dec/tulip/winbond-840.c
@@ -327,7 +327,7 @@ static int  mdio_read(struct net_device *dev, int phy_id, int location);
 static void mdio_write(struct net_device *dev, int phy_id, int location, int value);
 static int  netdev_open(struct net_device *dev);
 static int  update_link(struct net_device *dev);
-static void netdev_timer(unsigned long data);
+static void netdev_timer(struct timer_list *t);
 static void init_rxtx_rings(struct net_device *dev);
 static void free_rxtx_rings(struct netdev_private *np);
 static void init_registers(struct net_device *dev);
@@ -655,7 +655,7 @@ static int netdev_open(struct net_device *dev)
 		netdev_dbg(dev, "Done netdev_open()\n");
 
 	/* Set the timer to check for link beat. */
-	setup_timer(&np->timer, netdev_timer, (unsigned long)dev);
+	timer_setup(&np->timer, netdev_timer, 0);
 	np->timer.expires = jiffies + 1*HZ;
 	add_timer(&np->timer);
 	return 0;
@@ -772,10 +772,10 @@ static inline void update_csr6(struct net_device *dev, int new)
 		np->mii_if.full_duplex = 1;
 }
 
-static void netdev_timer(unsigned long data)
+static void netdev_timer(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct netdev_private *np = netdev_priv(dev);
+	struct netdev_private *np = from_timer(np, t, timer);
+	struct net_device *dev = pci_get_drvdata(np->pci_dev);
 	void __iomem *ioaddr = np->base_addr;
 
 	if (debug > 2)
-- 
2.7.4



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Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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Sorry for the delay and thanks for taking a look.

I'll try to re-spin the patch set by the end of this week/early next
week.


On (10/04/17 13:53), Petr Mladek wrote:
[..]
> Note that kallsyms_lookup() and module_address_lookup() is used
> in many other situations.

we dereference only things that can be dereferenced.
so calling it on already dereferenced address, or address
that does need to be dereferenced is OK.

besides, not all of those "other" places are available on
ppc64, ia64, parisc.

[..]
> > diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
> > index 127e7cfafa55..e2fc09ea9509 100644
> > --- a/kernel/kallsyms.c
> > +++ b/kernel/kallsyms.c
> > @@ -322,6 +322,7 @@ const char *kallsyms_lookup(unsigned long addr,
> >  	if (is_ksym_addr(addr)) {
> 
> is_ksym_addr() ignores the special .opd elf sections if
> CONFIG_KALLSYMS_ALL is disabled. We should dereference before
> this call.

I'll move it.

> >  		unsigned long pos;
> >  
> > +		addr = dereference_kernel_function_descriptor(addr);
> >  		pos = get_symbol_pos(addr, symbolsize, offset);
> 
> I still wonder if doing the dereference in the widely used kallsyms
> might cause any regression.

more testing wouldn't hurt, yes.

> Also get_symbol_pos() is called in several other helpers
> but the dereference is done only here. It would be
> confusing if for example kallsyms_lookup_size_offset()
> and kallsyms_lookup() give different result.

hm, so there is no change in this regard, right? there was no
deference before, there is no dereference now. what am I missing?


I'm touching the pf/pF part in this patch set. if there are cases
of missing dereferences anywhere else then we need to address it
in a separate patch set, I think.

> I would feel much more comfortable if we keep the derefenrece
> only in vsprintf.

at a price of extra module lookup, because we need `struct module *'
for module address dereference.

	-ss


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From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCHv3 5/7] parisc64: Add .opd based function descriptor
 dereference
Date: Thu, 19 Oct 2017 15:44:25 +0900
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To: Petr Mladek <pmladek@suse.com>
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Xref: news.gmane.org gmane.linux.ports.ia64:28273 gmane.linux.ports.parisc:27929 gmane.linux.ports.ppc64.devel:149393 gmane.linux.kernel:2596701
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On (10/04/17 12:40), Petr Mladek wrote:
> > +unsigned long dereference_module_function_descriptor(struct module *mod,
> > +						     unsigned long addr)
> > +{
> > +	unsigned long start_opd = (Elf64_Addr)mod->core_layout.base +
> > +				   mod->arch.fdesc_offset;
> > +	unsigned long end_opd = start_opd +
> > +				mod->arch.fdesc_count * sizeof(Elf64_Fdesc);
> 
> I know that this is used in rather slow paths. But it still might
> make sense to have these section borders pre-computed and
> stored in struct mod_arch_specific. I mean to do similar
> thing that we do on powerpc.
> 
> Well, we could do this in a followup patch if parisc people
> wanted it.
> 
> 
> > +	if (addr < start_opd || addr >= end_opd)
> > +		return addr;
> > +
> > +	return dereference_function_descriptor(addr);
> > +}
> > +#endif
> 
> Otherwise the patch looks fine to me.
> 
> Reviewed-by: Petr Mladek <pmladek@suse.com>

let's do it later, if need be.

	-ss
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From - Thu Nov 08 21:40:30 2018
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From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCHv3 4/7] powerpc64: Add .opd based function descriptor
 dereference
Date: Thu, 19 Oct 2017 15:45:04 +0900
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Approved: news@gmane.org
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 <20170930025319.987-5-sergey.senozhatsky@gmail.com>
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To: Petr Mladek <pmladek@suse.com>
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On (10/04/17 11:21), Petr Mladek wrote:
[..]
> > +#ifdef PPC64_ELF_ABI_v1
> > +unsigned long dereference_module_function_descriptor(struct module *mod,
> > +						     unsigned long addr)
> > +{
> > +	if (addr < mod->arch.start_opd || addr >= mod->arch.end_opd)
> > +		return addr;
> > +
> > +	return dereference_function_descriptor(addr);
> > +}
> > +#endif /* PPC64_ELF_ABI_v1 */
> 
> I would personally move this up in the source file. It is related to
> the definition of func_desc() and other functions that are
> also PPC_ELF_ABI-specific.
> 
> Otherwise, it looks good to me.
> 
> Reviewed-by: Petr Mladek <pmladek@suse.com>

OK, will move.

	-ss
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From - Thu Nov 08 21:40:30 2018
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Subject: Re: [PATCHv3 2/7] sections: split dereference_function_descriptor()
Date: Thu, 19 Oct 2017 15:45:44 +0900
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On (10/04/17 11:00), Petr Mladek wrote:
[..]
> >  /* random extra sections (if any).  Override
> > diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
> > index 4d0cb9bba93e..172904e9cded 100644
> > --- a/include/linux/moduleloader.h
> > +++ b/include/linux/moduleloader.h
> > @@ -85,6 +85,10 @@ void module_arch_cleanup(struct module *mod);
> >  /* Any cleanup before freeing mod->module_init */
> >  void module_arch_freeing_init(struct module *mod);
> >  
> > +/* Dereference module function descriptor */
> > +unsigned long dereference_module_function_descriptor(struct module *mod,
> > +						     unsigned long addr);
> > +
> 
> The function is used when the module is already loaded. IMHO,
> include/linux/module.h would be a better place.
> 
> One advantage would be that we could use the same trick
> as in include/asm-generic/sections.h. I mean:
> 
> #define dereference_module_function_descriptor(mod, addr) (addr)
> 
> and redefine it in the three affected
> arch/<arch>/include/asm/module.h headers. Then it might be completely
> optimized out on all architectures.

will take a look.

	-ss
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On (10/04/17 10:24), Petr Mladek wrote:
[..]
> To make it clear. All these comments are not a big deal and I do
> not want to invalidate all the acked-by and tested-by just because
> of them.
>
> But please, consider removing this change if we need to do
> another iteration of this patchset. IMHO, there is no real win
> and it would just pollute the git history.

I tend to rather keep it. would that cause any problems on your side?
it saves a ton of ugly casts later in the patch set and lets us to drop
some casts from the modules code/etc. the patch is here because otherwise
I had to add a bunch of new casts.

	-ss
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Hello,

Michael, sorry for the delay. I'm catching up with the emails
after... absence.

On (10/04/17 22:06), Michael Ellerman wrote:
> Petr Mladek <pmladek@suse.com> writes:
> > On Sat 2017-09-30 11:53:16, Sergey Senozhatsky wrote:
> >> diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
> >> index 0b0f89685b67..94caec045a90 100644
> >> --- a/arch/powerpc/kernel/module_64.c
> >> +++ b/arch/powerpc/kernel/module_64.c
> >> @@ -712,6 +717,17 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
> >>  	return 0;
> >>  }
> >>  
> >> +#ifdef PPC64_ELF_ABI_v1
> >> +unsigned long dereference_module_function_descriptor(struct module *mod,
> >> +						     unsigned long addr)
> >> +{
> >> +	if (addr < mod->arch.start_opd || addr >= mod->arch.end_opd)
> >> +		return addr;
> >> +
> >> +	return dereference_function_descriptor(addr);
> >> +}
> >> +#endif /* PPC64_ELF_ABI_v1 */
> >
> > I would personally move this up in the source file. It is related to
> > the definition of func_desc() and other functions that are
> > also PPC_ELF_ABI-specific.
> 
> Yeah that would be neater. There's already a PPC64_ELF_ABI_v2 block, you
> could put this in the else case of that.
> 
> But we can do that later if you're not respinning otherwise.

will do.

	-ss
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Xref: news.gmane.org gmane.linux.kernel:2597236 gmane.linux.ports.ia64:28278 gmane.linux.ports.parisc:27934 gmane.linux.ports.ppc64.devel:149428
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2597236>

Michael,

On (09/27/17 15:01), Michael Ellerman wrote:
> Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> writes:
> 
> > On (09/22/17 16:48), Luck, Tony wrote:
> > [..]
> >> Tested patch series on ia64 successfully.
> >> 
> >> Tested-by: Tony Luck <tony.luck@intel.com>
> >
> > thanks!
> >
> >> After this goes upstream, you should submit a patch to get rid of
> >> all uses of %pF (70 instances in 35 files) and %pf (63 in 34)
> >> 
> >> Perhaps break the patch by top-level directory (e.g. get all the %pF
> >> and %pF in the 17 files under drivers/ in one patch).
> >
> > frankly, I was going to have some sort of a lazy deprecation process:
> > didn't plan to send out a patch set that would hunt down all pf/pF-s.
> > hm...
> 
> That never works though, we have lots of cruft left over from times when
> that's happened and the conversion never quite got finished.

this time around it's different, I promise! :)


well...
I guess I can send out a tree wide pf/pF removal patch set. later.
when we will see that .opd based dereference does not make anyone
unhappy.

and I think we can't remove pf/pF from the kernel completely. it
will stay in vscnprintf() for some time. old habits die hard, I suppose,
there might be people using it for debugging/etc.


> At least if you send out the patches to do the removal they might
> eventually get merged.
> 
> > speaking of upstream, any objections if this patch set will go through
> > the printk tree, in one piece?
> 
> Do you mind putting it in a topic branch (based on rc2) and then merge
> that into the printk tree? That way I can merge the topic branch iff
> there are conflicts later down the line towards 4.15.

ok, let me re-spin the series. there are some changes here
and there, so I'll drop Tested-by/Reviewed-by tags and will
ask platforms' maintainers to re-test the patch set :(

if everything goes OK, then we can ask Petr to do the topic
branch (I don't have a kernel.org account).

	-ss


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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc architecture fixes for 4.14
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Hi Linus,

please pull three small but important fixes for the parisc architecture for kernel 4.14 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.14-3

Three small important fixes for the parisc architecture:

- Export __cmpxchg_u64() symbol on 32bit kernel too. This unbreaks building the
  kernel with ixgbe kernel module. From Guenter Roeck.

- Fix 64-bit atomic cmpxchg kernel helper function for 32-bit kernel in LWS
  code for userspace. This unbreaks e.g. the 64-bit variant of the glibc
  function __sync_fetch_and_add() with a 32-bit parisc kernel. From John
  David Anglin, tagged for backport to v3.13+.

- Detect nonsynchronous CPU-internal cr16 cycle counters more reliable. This
  avoids stalled CPU warnings by the kernel soft lockup detector. From me,
  tagged for backport to v4.13+.

Thanks,
Helge

----------------------------------------------------------------
Guenter Roeck (1):
      parisc: Export __cmpxchg_u64 unconditionally

Helge Deller (1):
      parisc: Fix detection of nonsynchronous cr16 cycle counters

John David Anglin (1):
      parisc: Fix double-word compare and exchange in LWS code on 32-bit kernels

 arch/parisc/kernel/parisc_ksyms.c | 2 +-
 arch/parisc/kernel/syscall.S      | 6 +++---
 arch/parisc/kernel/time.c         | 5 ++++-
 3 files changed, 8 insertions(+), 5 deletions(-)
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Subject: Re: [PATCHv3 6/7] symbol lookup: use new kernel and module
 dereference functions
Date: Fri, 20 Oct 2017 15:08:48 +0200
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On Thu 2017-10-19 15:42:35, Sergey Senozhatsky wrote:
> Sorry for the delay and thanks for taking a look.
> 
> I'll try to re-spin the patch set by the end of this week/early next
> week.
> 
> 
> On (10/04/17 13:53), Petr Mladek wrote:
> [..]
> > Note that kallsyms_lookup() and module_address_lookup() is used
> > in many other situations.
> 
> we dereference only things that can be dereferenced.
> so calling it on already dereferenced address, or address
> that does need to be dereferenced is OK.

My concern is that it changes the behavior. It will suddenly return
another information for addresses that were not dereference before.

> [..]
> > > diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
> > > index 127e7cfafa55..e2fc09ea9509 100644
> > > --- a/kernel/kallsyms.c
> > > +++ b/kernel/kallsyms.c
> > > @@ -322,6 +322,7 @@ const char *kallsyms_lookup(unsigned long addr,
> > >  	if (is_ksym_addr(addr)) {
> > 
> > is_ksym_addr() ignores the special .opd elf sections if
> > CONFIG_KALLSYMS_ALL is disabled. We should dereference before
> > this call.
> 
> I'll move it.
> 
> > >  		unsigned long pos;
> > >  
> > > +		addr = dereference_kernel_function_descriptor(addr);
> > >  		pos = get_symbol_pos(addr, symbolsize, offset);
> > 
> > I still wonder if doing the dereference in the widely used kallsyms
> > might cause any regression.
> 
> more testing wouldn't hurt, yes.
> 
> > Also get_symbol_pos() is called in several other helpers
> > but the dereference is done only here. It would be
> > confusing if for example kallsyms_lookup_size_offset()
> > and kallsyms_lookup() give different result.
> 
> hm, so there is no change in this regard, right? there was no
> deference before, there is no dereference now. what am I missing?

But there was no dereference in kallsyms_lookup() before
and there is dereference now.

I mean that both kallsyms_lookup_size_offset() and kallsyms_lookup()
always returned the same @symbolsize and @offset before this patch.
But they might give different results now because kallsyms_lookup()
might be newly working with dereferenced value.

It is non-consistent, unexpected behavior and might cause problems.

> I'm touching the pf/pF part in this patch set. if there are cases
> of missing dereferences anywhere else then we need to address it
> in a separate patch set, I think.

You are changing the behavior of kallsyms_lookup() and introduce
a possible inconsistency in this patchset.

It might be innocent if kallsyms are used only to display
debug messages. But there are even functional dependencies,
for example kallsyms_lookup() is called in ftrace_match_record().

> > I would feel much more comfortable if we keep the derefenrece
> > only in vsprintf.
> 
> at a price of extra module lookup, because we need `struct module *'
> for module address dereference.

It would be more code but it should not be slower. The module lookup
is just hidden in the kallsyms call now.

Another solution would be to add another helper function into kallsyms
that does the dereference and keep the current one as is.

I think that the dereference might make sense even in the kallsyms
code. But we need to make sure that it is safe and consistent.
This complicates review of this patchset.

Best Regards,
Petr
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On Thu 2017-10-19 15:50:04, Sergey Senozhatsky wrote:
> On (10/04/17 10:24), Petr Mladek wrote:
> [..]
> > To make it clear. All these comments are not a big deal and I do
> > not want to invalidate all the acked-by and tested-by just because
> > of them.
> >
> > But please, consider removing this change if we need to do
> > another iteration of this patchset. IMHO, there is no real win
> > and it would just pollute the git history.
> 
> I tend to rather keep it. would that cause any problems on your side?
> it saves a ton of ugly casts later in the patch set and lets us to drop
> some casts from the modules code/etc. the patch is here because otherwise
> I had to add a bunch of new casts.

OK, let's keep it.

Best Regards,
Petr
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
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Subject: Re: [PATCHv3 6/7] symbol lookup: use new kernel and module
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On (10/20/17 15:08), Petr Mladek wrote:
> On Thu 2017-10-19 15:42:35, Sergey Senozhatsky wrote:
> > Sorry for the delay and thanks for taking a look.
> > 
> > I'll try to re-spin the patch set by the end of this week/early next
> > week.
> > 
> > 
> > On (10/04/17 13:53), Petr Mladek wrote:
> > [..]
> > > Note that kallsyms_lookup() and module_address_lookup() is used
> > > in many other situations.
> > 
> > we dereference only things that can be dereferenced.
> > so calling it on already dereferenced address, or address
> > that does need to be dereferenced is OK.
> 
> My concern is that it changes the behavior. It will suddenly return
> another information for addresses that were not dereference before.

OK. I'd be really-really surprised to find out that anyone did
kallsyms_lookup()/module_address_lookup() on func descriptors,
but I understand your concerns. I'll try to keep everything
within vsprintf().

	-ss
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From - Thu Nov 08 21:40:31 2018
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From: Christoph Biedl <linux-kernel.bfrz@manchmal.in-ulm.de>
Newsgroups: gmane.linux.ports.parisc
Subject: Testing the lws_compare_and_swap_2 syscall
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Hello,

looking into John's recent fix for lws_compare_and_swap_2 on 32bit
systems I got the feeling things still aren't right yet. To defeat
or prove that, also since I'd like to learn more about this ... I wrote
a small program the uses that syscall, and things break galore.

Could you please check the code below[1] for obvious usage errors? Note
the entire cmpxchg2 function was copied from gcc, and the disassembly
output provided by objdump looks correct as far as I can tell.

The program takes four numerical parameters that correspond to the
four parameters of the syscall.

To start with, using the invalid value 4 as size parameter does not
return ENOSYS as I'd expect but crashes my system[2], using both 32 and
64 bit kernel, no root privileges required. This should never happen.

Regards,
    Christoph

[1]
======================================================================
#include <errno.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>

/* borrowed from __kernel_cmpxchg2 in libgcc/config/pa/linux-atomic.c in the gcc sources */
static inline long
cmpxchg2 (void *mem, const void *oldval, const void *newval,
                   int val_size)
{
  register unsigned long lws_mem asm("r26") = (unsigned long) (mem);
  register unsigned long lws_old asm("r25") = (unsigned long) oldval;
  register unsigned long lws_new asm("r24") = (unsigned long) newval;
  register int lws_size asm("r23") = val_size;
  register long lws_ret   asm("r28");
  register long lws_errno asm("r21");
  asm volatile (        "ble    0xb0(%%sr2, %%r0)       \n\t"
                        "ldi    %6, %%r20               \n\t"
        : "=r" (lws_ret), "=r" (lws_errno), "+r" (lws_mem),
          "+r" (lws_old), "+r" (lws_new), "+r" (lws_size)
        : "i" (2)
        : "r1", "r20", "r22", "r29", "r31", "fr4", "memory"
  );

  /* If the kernel LWS call is successful, lws_ret contains 0.  */
  if (__builtin_expect (lws_ret == 0, 1))
    return 0;

  if (__builtin_expect (lws_errno == -EFAULT || lws_errno == -ENOSYS, 0))
    __builtin_trap ();

  /* If the kernel LWS call fails with no error, return -EBUSY */
  if (__builtin_expect (!lws_errno, 0))
    return -EBUSY;

  return lws_errno;
}



int main (int argc, char **argv) {

    if (argc != 5) {
        printf ("usage <mem> <old> <new> <size>\n");
        exit (1);
    }

    uint64_t a = atoi (argv[1]);
    uint64_t b = atoi (argv[2]);
    uint64_t c = atoi (argv[3]);
    unsigned long size = atoi (argv[4]);

    printf ("a = 0x%016llx, b = 0x%016llx, c = 0x%016llx\n",
        a,
        b,
        c
    );

    unsigned long r = cmpxchg2 (&a, &b, &c, size);

    printf ("a = 0x%016llx\n", a);
    printf ("r = 0x%lx\n", r);

    return 0;
}
======================================================================


[2]
| Backtrace:
|
| Kernel Fault: Code=26 (Data memory access rights trap) regs=000000007ca8f738 (Addr=0000000000000002)
| CPU: 0 PID: 1289 Comm: a.out Not tainted 4.12.0-2-parisc64-smp #1 Debian 4.12.13-1
| task: 000000007ca8eec0 task.stack: 000000007cb68000
|
|      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
| PSW: 00001000000001101111111100001111 Not tainted
| r00-03  000000ff0806ff0f 0000000040cf2000 0000000000010987 00000000f93963c0
| r04-07  00000000f853fc70 00000000ffffffff 00000000ffffffff 00000000ffffffff
| r08-11  00000000fffffffe 00000000ffffffff 00000000fffffffd 00000000000ed000
| r12-15  00000000ffffffff 0000000000911d28 0000000000000000 0000000000117be8
| r16-19  00000000009ce448 0000000000000000 0000000000000001 00000000f9396328
| r20-23  0000000000000002 00000000000004d4 00000000f844a08c 0000000000000004
| r24-27  00000000f9396330 00000000f9396328 00000000f9396320 0000000000011100
| r28-31  0000000040cf2528 0000000000000010 00000000f9396400 00000000000106e7
| sr00-03  00000000003a7800 0000000000000000 0000000000000000 00000000003a7800
| sr04-07  00000000003a7800 00000000003a7800 00000000003a7800 00000000003a7800
|
| IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000000000578 000000000000057c
|  IIR: 0e8095dc    ISR: 0000000000000000  IOR: 0000000000000002
|  CPU:        0   CR30: 000000007cb68000 CR31: 0000000011111111
|  ORIG_R28: 0000000000000000
|  IAOQ[0]: 0x578
|  IAOQ[1]: 0x57c
|  RP(r2): 0x10987
| Backtrace:
|
| Kernel panic - not syncing: Kernel Fault
| ---[ end Kernel panic - not syncing: Kernel Fault
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From - Thu Nov 08 21:40:31 2018
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From: John David Anglin <dave.anglin@bell.net>
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On 2017-10-24, at 4:03 PM, Christoph Biedl wrote:

> To start with, using the invalid value 4 as size parameter does not
> return ENOSYS as I'd expect but crashes my system[2], using both 32 and
> 64 bit kernel, no root privileges required.

        /* Check the validity of the size pointer */
        subi,>>= 4, %r23, %r0
        b,n     lws_exit_nosys

The condition in the subi instruction should be ">>".  The branch is incorrectly nullified when
%r23 is 4.

Dave
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John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:40:31 2018
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From: Christoph Biedl <linux-kernel.bfrz@manchmal.in-ulm.de>
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Subject: Re: Testing the lws_compare_and_swap_2 syscall
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John David Anglin wrote...

> On 2017-10-24, at 4:03 PM, Christoph Biedl wrote:
> 
> > To start with, using the invalid value 4 as size parameter does not
> > return ENOSYS as I'd expect but crashes my system[2], using both 32 and
> > 64 bit kernel, no root privileges required.
> 
>         /* Check the validity of the size pointer */
>         subi,>>= 4, %r23, %r0
>         b,n     lws_exit_nosys
> 
> The condition in the subi instruction should be ">>".  The branch is incorrectly nullified when
> %r23 is 4.

Ups, way too obvious. This does the trick, or: Tested-By:
Should I try to get a CVE number for this, or is parisc considered
*that* historical nobody actually cares?


Now, using the given cmpxchg2 function, the following code tests this
LWS for 32bit: The first test is for *mem == *old, the second for
*mem != *old. Is there anything wrong with this?

    uint32_t mem;
    uint32_t old;
    uint32_t new;

    mem = 1;
    old = 1;
    new = 3;
    cmpxchg2 (&mem, &old, &new, 2);
    if (mem == old) {
        printf ("PASS: mem unchanged\n");
    } else {
        printf ("FAIL: got = 0x%x, expected = 0x%x\n", mem, old);
    }

    mem = 1;
    old = 3;
    new = 3;
    cmpxchg2 (&mem, &old, &new, 2);
    if (mem == new) {
        printf ("PASS: mem changed\n");
    } else {
        printf ("FAIL: got = 0x%x, expected = 0x%x\n", mem, new);
    }

My problem here: Both tests fail, and so do more complex ones that test
the other data sizes as well.

After staring at lws_compare_and_swap_2 a long time it seems there are
two issues: First, there is more usage of ",ma" so an update of mem/r26
hits the wrong place. After that, all results are the wrong way around.
I'm frightened to tell but I fear the logic in lws_compare_and_swap_2
is inverted in each and every place. I'm happy to be convinced
otherwise. But for the time being it seems the patch below is an
improvement.

Status: My system boots and all my tests pass. However, I find smartd
stalling in 100% CPU, might be coincidence. Now I'm putting some more
load onto the box to see whether it's less crashy then it used to be the
previous weeks.

Aside, there is another ",ma" modifier in lws_compare_and_swap that I
fail to understand. Haven't checked yet in detail yet, though.

Cheers,
    Christoph

--- a/src/arch/parisc/kernel/syscall.S
+++ b/src/arch/parisc/kernel/syscall.S
@@ -796,30 +796,30 @@
 	ldo	1(%r0),%r28
 
 	/* 8bit CAS */
-13:	ldb,ma	0(%r26), %r29
-	sub,=	%r29, %r25, %r0
+13:	ldb	0(%r26), %r29
+	sub,<>	%r29, %r25, %r0
 	b,n	cas2_end
-14:	stb,ma	%r24, 0(%r26)
+14:	stb	%r24, 0(%r26)
 	b	cas2_end
 	copy	%r0, %r28
 	nop
 	nop
 
 	/* 16bit CAS */
-15:	ldh,ma	0(%r26), %r29
-	sub,=	%r29, %r25, %r0
+15:	ldh	0(%r26), %r29
+	sub,<>	%r29, %r25, %r0
 	b,n	cas2_end
-16:	sth,ma	%r24, 0(%r26)
+16:	sth	%r24, 0(%r26)
 	b	cas2_end
 	copy	%r0, %r28
 	nop
 	nop
 
 	/* 32bit CAS */
-17:	ldw,ma	0(%r26), %r29
-	sub,=	%r29, %r25, %r0
+17:	ldw	0(%r26), %r29
+	sub,<>	%r29, %r25, %r0
 	b,n	cas2_end
-18:	stw,ma	%r24, 0(%r26)
+18:	stw	%r24, 0(%r26)
 	b	cas2_end
 	copy	%r0, %r28
 	nop
@@ -827,21 +827,22 @@
 
 	/* 64bit CAS */
 #ifdef CONFIG_64BIT
-19:	ldd,ma	0(%r26), %r29
-	sub,*=	%r29, %r25, %r0
+19:	ldd	0(%r26), %r29
+	sub,<>	%r29, %r25, %r0
 	b,n	cas2_end
-20:	std,ma	%r24, 0(%r26)
+20:	std	%r24, 0(%r26)
 	copy	%r0, %r28
 #else
 	/* Compare first word */
 19:	ldw	0(%r26), %r29
 	sub,=	%r29, %r22, %r0
-	b,n	cas2_end
+	b,n	cas2_64set
 	/* Compare second word */
 20:	ldw	4(%r26), %r29
-	sub,=	%r29, %r23, %r0
+	sub,<>	%r29, %r23, %r0
 	b,n	cas2_end
 	/* Perform the store */
+cas2_64set:
 21:	fstdx	%fr4, 0(%r26)
 	copy	%r0, %r28
 #endif
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On 2017-10-25 8:22 PM, Christoph Biedl wrote:
> After staring at lws_compare_and_swap_2 a long time it seems there are
> two issues: First, there is more usage of ",ma" so an update of mem/r26
> hits the wrong place.
The other uses of ",ma" are not a problem as the increment value is 0.  
So, the pointer
is unchanged.  The double word case had an increment of 4 messing up the 
pointer.

Technically, ",ma" with a zero increment provides an ordered load. 
However, the completer
probably isn't necessary as I believe all loads and stores are ordered 
on real hardware.

The "=" completer in the "sub" instructions looks correct to me. When 
*mem and old are
equal, the "b,n     cas2_end" instruction is nullified and new is stored 
in mem.  See comment
from code:

         /*
                 prev = *addr;
                 if ( prev == old )
                   *addr = new;
                 return prev;
         */

In your first test example, old and new should be exchanged in mem. Pass 
should be
mem == new.  Second case should be mem == old.

Dave

-- 
John David Anglin  dave.anglin@bell.net

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Subject: [PATCH] parisc: pass endianness info to sparse
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parisc is big-endian only but sparse assumes the same endianness
as the building machine.
This is problematic for code which expect __BYTE_ORDER__ being
correctly predefined by the compiler which sparse can then
pre-process differently from what gcc would.

Fix this by letting sparse know about the architecture endianness.

To: James Bottomley <jejb@parisc-linux.org>
To: Helge Deller <deller@gmx.de>
CC: linux-parisc@vger.kernel.org
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
---
 arch/parisc/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 01946ebaf..e2364ff59 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -22,7 +22,7 @@ KBUILD_IMAGE := vmlinuz
 KBUILD_DEFCONFIG := default_defconfig
 
 NM		= sh $(srctree)/arch/parisc/nm
-CHECKFLAGS	+= -D__hppa__=1
+CHECKFLAGS	+= -D__hppa__=1 -mbig-endian
 LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 export LIBGCC
 
-- 
2.14.0

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----- On 11 Oct, 2017, at 6:06 AM, John David Anglin dave.anglin@bell.net wrote:

> 
> I believe I have ISOs but I'll have to dig.  I'll look next weekend.

If you did not manage to find some media, I have the following I can send :
HPUX 11.23 Core FOE. Dec 2005

Let me know :)

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Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de>,
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On 2017-11-01 9:57 PM, Brendan Horan wrote:
> If you did not manage to find some media, I have the following I can send :
> HPUX 11.23 Core FOE. Dec 2005
I believe Tom has 11.11 installed and is trying to access the 
Quicksilver adapter setup.  Does your
media have kwdb on it?

Dave

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Subject: Re: HP-UX for C8000
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On Thu, Nov 02, 2017 at 10:25:23AM -0400, John David Anglin wrote:
> On 2017-11-01 9:57 PM, Brendan Horan wrote:
> >If you did not manage to find some media, I have the following I can send :
> >HPUX 11.23 Core FOE. Dec 2005
> I believe Tom has 11.11 installed and is trying to access the Quicksilver
> adapter setup. Does your
> media have kwdb on it?

in fact I've made some progress today. I now have a loadable module,
which dumps whatever I want, when it's loaded. And the first thing
I've detected is that I'm missing a package named Graphics Technical
Computing Environment and that a radeon 7000 card will not use
DMA over AGP (which means I have to install a firegl in my test machine).

I'm using 11.11 since 11.31 doesn't install and rumours are that 11.23
will also not install.

Thomas.

-- 
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Subject: Re: HP-UX for C8000
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On 2017-11-02 12:38 PM, Tom Bogendoerfer wrote:
> in fact I've made some progress today. I now have a loadable module,
> which dumps whatever I want, when it's loaded. And the first thing
> I've detected is that I'm missing a package named Graphics Technical
> Computing Environment and that a radeon 7000 card will not use
> DMA over AGP (which means I have to install a firegl in my test machine).
That's excellent news.  It looks as if one can download it if one 
creates an HPE account:
https://h20392.www2.hpe.com/portal/swdepot/displayProductInfo.do?productNumber=B6268AA

Dave

-- 
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* Christoph Biedl <linux-kernel.bfrz@manchmal.in-ulm.de>:
> John David Anglin wrote...
> 
> > On 2017-10-24, at 4:03 PM, Christoph Biedl wrote:
> > 
> > > To start with, using the invalid value 4 as size parameter does not
> > > return ENOSYS as I'd expect but crashes my system[2], using both 32 and
> > > 64 bit kernel, no root privileges required.
> > 
> >         /* Check the validity of the size pointer */
> >         subi,>>= 4, %r23, %r0
> >         b,n     lws_exit_nosys
> > 
> > The condition in the subi instruction should be ">>".  The branch is incorrectly nullified when
> > %r23 is 4.

I'd prefer this (untested) patch:

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 41e60a9c7db2..f8a8754322ae 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -698,8 +698,7 @@ lws_compare_and_swap_2:
 #endif
 
 	/* Check the validity of the size pointer */
-	subi,>>= 4, %r23, %r0
-	b,n	lws_exit_nosys
+	cmpib,COND(<<),n 3, %r23, lws_exit_nosys
 
 	/* Jump to the functions which will load the old and new values into
 	   registers depending on the their size */


> Ups, way too obvious. This does the trick, or: Tested-By:
> Should I try to get a CVE number for this, or is parisc considered
> *that* historical nobody actually cares?

I think a CVE is not needed for parisc. There are no real productive
users (I assume).


> Now, using the given cmpxchg2 function, the following code tests this
> LWS for 32bit: The first test is for *mem == *old, the second for
> *mem != *old. Is there anything wrong with this?
> 
>     uint32_t mem;
>     uint32_t old;
>     uint32_t new;
> 
>     mem = 1;
>     old = 1;
>     new = 3;
>     cmpxchg2 (&mem, &old, &new, 2);
>     if (mem == old) {
>         printf ("PASS: mem unchanged\n");
>     } else {
>         printf ("FAIL: got = 0x%x, expected = 0x%x\n", mem, old);
>     }
> 
>     mem = 1;
>     old = 3;
>     new = 3;
>     cmpxchg2 (&mem, &old, &new, 2);
>     if (mem == new) {
>         printf ("PASS: mem changed\n");
>     } else {
>         printf ("FAIL: got = 0x%x, expected = 0x%x\n", mem, new);
>     }
> 
> My problem here: Both tests fail, and so do more complex ones that test
> the other data sizes as well.
> 
> After staring at lws_compare_and_swap_2 a long time it seems there are
> two issues: First, there is more usage of ",ma" so an update of mem/r26
> hits the wrong place. After that, all results are the wrong way around.
> I'm frightened to tell but I fear the logic in lws_compare_and_swap_2
> is inverted in each and every place. I'm happy to be convinced
> otherwise. But for the time being it seems the patch below is an
> improvement.
> 
> Status: My system boots and all my tests pass. However, I find smartd
> stalling in 100% CPU, might be coincidence. Now I'm putting some more
> load onto the box to see whether it's less crashy then it used to be the
> previous weeks.

Did you continued your tests?
How were the results.

> Aside, there is another ",ma" modifier in lws_compare_and_swap that I
> fail to understand. Haven't checked yet in detail yet, though.

I'd suggest to keep the other ",ma" modifiers for now.

Helge
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On 2017-11-06 4:27 PM, Helge Deller wrote:
>   	/* Check the validity of the size pointer */
> -	subi,>>= 4, %r23, %r0
> -	b,n	lws_exit_nosys
> +	cmpib,COND(<<),n 3, %r23, lws_exit_nosys
I don't believe that we want to use COND here (i.e., we want a 32-bit 
check).  We might not
need to trim the upper 32-bits r23.

The reason the code uses nullification is the fast path occurs when the 
"b,n" is nullified.   So we
avoid the branch prediction penalty.  I'd have to check whether the fast 
path with the cmpib instruction
is the taken branch or not.

Have no object to changing "4" to "3" instead of changing the condition.

Dave

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On 2017-11-06 5:45 PM, John David Anglin wrote:
> On 2017-11-06 4:27 PM, Helge Deller wrote:
>>       /* Check the validity of the size pointer */
>> -    subi,>>= 4, %r23, %r0
>> -    b,n    lws_exit_nosys
>> +    cmpib,COND(<<),n 3, %r23, lws_exit_nosys
> I don't believe that we want to use COND here (i.e., we want a 32-bit 
> check).  We might not
> need to trim the upper 32-bits r23.
>
> The reason the code uses nullification is the fast path occurs when 
> the "b,n" is nullified.   So we
> avoid the branch prediction penalty.  I'd have to check whether the 
> fast path with the cmpib instruction
> is the taken branch or not.
For cmpib with "<<" condition, the hint for a backward branch is likely 
taken.  The branch to
lws_exit_nosys is backward.

Dave

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Helge Deller wrote...

> * Christoph Biedl <linux-kernel.bfrz@manchmal.in-ulm.de>:

> > Status: My system boots and all my tests pass. However, I find smartd
> > stalling in 100% CPU, might be coincidence. Now I'm putting some more
> > load onto the box to see whether it's less crashy then it used to be the
> > previous weeks.
>
> Did you continued your tests?
> How were the results.

Basically I gave up on this. My change made things worse, and while I
still didn't get the point (read: For my understanding there's a
discrepancy between the syscall's description and what actually
happens), it's certainly better to keep things the way they are.

> > Aside, there is another ",ma" modifier in lws_compare_and_swap that I
> > fail to understand. Haven't checked yet in detail yet, though.
>
> I'd suggest to keep the other ",ma" modifiers for now.

Since, as I presume, this has no impact on performance, this boils down
to aid a human reviewing the code in understanding what's happening
here.

    Christoph
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Cc: Andrew Morton <akpm@linux-foundation.org>,
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	Hello,

	A reworked version. There is a new dereference_symbol_descriptor()
function now, where "the magic happens", so I don't touch kallsyms_lookup()
and module_address_lookup() anymore.

	All Ack-s/Tested-by-s were dropped, since the patch set has been
reworked. I'm kindly asking arch-s maintainers and developers to test it
once again. Sorry for any inconveniences and thanks for your help in
advance.

===========================================================================

	On some arches C function pointers are indirect and point to
a function descriptor, which contains the actual pointer to the code.
This mostly doesn't matter, except for cases when people want to print
out function pointers in symbolic format, because the usual '%pS/%ps'
does not work on those arches as expected. That's the reason why we
have '%pF/%pf', but since it's here because of a subtle ABI detail
specific to some arches (ppc64/ia64/parisc64) it's easy to misuse
'%pF/%pf' and '%pS/%ps' (see [1], for example).

	This patch set attempts to move ia64/ppc64/parisc64 C function
pointer ABI details out of printk() to arch code. Function dereference
code now checks if a pointer belongs to a .opd ELF section and dereferences
that pointer only if it does. The kernel and modules have their own .opd
sections that's why I use two different ARCH functions: for kernel and
for module pointer dereference.

	I planned to remove dereference_function_descriptor() entirely,
but then I discovered a bunch other uses cases (kgdbts, init/main.c,
extable, etc.), so I decided to keep dereference_function_descriptor()
around because the main point of this patch set is to deprecate %pF/%pf.
But at the same time, I think I can go further and handle both kernel
and module descriptor dereference in dereference_function_descriptor().
We need a module pointer for module .opd check, so that will come at an
extra cost of module lookup (may be there will some other issues along
the way, haven't checked it).

Right now we've got:

- dereference_function_descriptor(addr)
        a generic (old) function. it simply attempts to dereference
        whatever pointer we give it.

- dereference_kernel_function_descriptor(addr)
        dereferences a kernel pointer if it's within the kernel's .opd
        section.

- dereference_module_function_descriptor(module, addr)
        dereference a module pointer if it's within the module's .opd
        section.

v4:
-- don't switch to ulong in derefence functions, keep using void pointer
-- introduce dereference_symbol_descriptor() function
-- avoid any dereference in kallsyms lookup/module address lookup
-- improved documentation
-- since this is a new version, I dropped all the the Ack-s and Tested-by-s

v3:
-- picked up ACKs and Tested-by
-- tweaked checkpatch warning (Joe)
-- updated Documentation

v2:
-- convert dereference_function_descriptor() to unsigned long
-- fix kernel descriptor range checks (Helge)
-- fix parisc module descriptor range check (Helge)
-- fix ppc64 module range check
-- add checkpatch patch

Sergey Senozhatsky (6):
  sections: split dereference_function_descriptor()
  ia64: Add .opd based function descriptor dereference
  powerpc64: Add .opd based function descriptor dereference
  parisc64: Add .opd based function descriptor dereference
  symbol lookup: introduce dereference_symbol_descriptor()
  checkpatch: add pF/pf deprecation warning

 Documentation/printk-formats.txt          | 49 ++++++++++++-------------------
 arch/ia64/include/asm/sections.h          | 10 ++++++-
 arch/ia64/kernel/module.c                 | 12 ++++++++
 arch/ia64/kernel/vmlinux.lds.S            |  2 ++
 arch/parisc/boot/compressed/vmlinux.lds.S |  2 ++
 arch/parisc/include/asm/sections.h        |  6 ++++
 arch/parisc/kernel/module.c               | 16 ++++++++++
 arch/parisc/kernel/process.c              |  9 ++++++
 arch/parisc/kernel/vmlinux.lds.S          |  2 ++
 arch/powerpc/include/asm/module.h         |  3 ++
 arch/powerpc/include/asm/sections.h       | 12 ++++++++
 arch/powerpc/kernel/module_64.c           | 14 +++++++++
 arch/powerpc/kernel/vmlinux.lds.S         |  2 ++
 include/asm-generic/sections.h            |  8 +++--
 include/linux/kallsyms.h                  |  2 ++
 include/linux/module.h                    |  3 ++
 kernel/kallsyms.c                         | 19 ++++++++++++
 kernel/module.c                           |  6 ++++
 lib/vsprintf.c                            |  5 ++--
 scripts/checkpatch.pl                     | 11 +++++--
 20 files changed, 155 insertions(+), 38 deletions(-)

-- 
2.15.0

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From - Thu Nov 08 21:40:32 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCHv4 1/6] sections: split dereference_function_descriptor()
Date: Fri, 10 Nov 2017 08:48:25 +0900
Lines: 124
Approved: news@gmane.org
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        Jessica Yu <jeyu@kernel.org>, Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
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        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Helge Deller <deller@gmx.de>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/27955>

There are two format specifiers to print out a pointer in symbolic
format: '%pS/%ps' and '%pF/%pf'. On most architectures, the two
mean exactly the same thing, but some architectures (ia64, ppc64,
parisc64) use an indirect pointer for C function pointers, where
the function pointer points to a function descriptor (which in
turn contains the actual pointer to the code). The '%pF/%pf, when
used appropriately, automatically does the appropriate function
descriptor dereference on such architectures.

The "when used appropriately" part is tricky. Basically this is
a subtle ABI detail, specific to some platforms, that made it to
the API level and people can be unaware of it and miss the whole
"we need to dereference the function" business out. [1] proves
that point (note that it fixes only '%pF' and '%pS', there might
be '%pf' and '%ps' cases as well).

It appears that we can handle everything within the affected
arches and make '%pS/%ps' smart enough to retire '%pF/%pf'.
Function descriptors live in .opd elf section and all affected
arches (ia64, ppc64, parisc64) handle it properly for kernel
and modules. So we, technically, can decide if the dereference
is needed by simply looking at the pointer: if it belongs to
.opd section then we need to dereference it.

The kernel and modules have their own .opd sections, obviously,
that's why we need to split dereference_function_descriptor()
and use separate kernel and module dereference arch callbacks.

This patch does the first step, it
a) adds dereference_kernel_function_descriptor() function.
b) adds a weak alias to dereference_module_function_descriptor()
   function.

So, for the time being, we will have:
1) dereference_function_descriptor()
   A generic function, that simply dereferences the pointer. There is
   bunch of places that call it: kgdbts, init/main.c, extable, etc.

2) dereference_kernel_function_descriptor()
   A function to call on kernel symbols that does kernel .opd section
   address range test.

3) dereference_module_function_descriptor()
   A function to call on modules' symbols that does modules' .opd
   section address range test.

[1] https://marc.info/?l=linux-kernel&m=150472969730573

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 include/asm-generic/sections.h | 8 ++++++--
 include/linux/module.h         | 3 +++
 kernel/module.c                | 6 ++++++
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index 03cc5f9bba71..849cd8eb5ca0 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -30,6 +30,7 @@
  *	__ctors_start, __ctors_end
  *	__irqentry_text_start, __irqentry_text_end
  *	__softirqentry_text_start, __softirqentry_text_end
+ *	__start_opd, __end_opd
  */
 extern char _text[], _stext[], _etext[];
 extern char _data[], _sdata[], _edata[];
@@ -49,12 +50,15 @@ extern char __start_once[], __end_once[];
 /* Start and end of .ctors section - used for constructor calls. */
 extern char __ctors_start[], __ctors_end[];
 
+/* Start and end of .opd section - used for function descriptors. */
+extern char __start_opd[], __end_opd[];
+
 extern __visible const void __nosave_begin, __nosave_end;
 
-/* function descriptor handling (if any).  Override
- * in asm/sections.h */
+/* Function descriptor handling (if any).  Override in asm/sections.h */
 #ifndef dereference_function_descriptor
 #define dereference_function_descriptor(p) (p)
+#define dereference_kernel_function_descriptor(p) (p)
 #endif
 
 /* random extra sections (if any).  Override
diff --git a/include/linux/module.h b/include/linux/module.h
index c69b49abe877..9dac6973b001 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -606,6 +606,9 @@ int ref_module(struct module *a, struct module *b);
 	__mod ? __mod->name : "kernel";		\
 })
 
+/* Dereference module function descriptor */
+void *dereference_module_function_descriptor(struct module *mod, void *ptr);
+
 /* For kallsyms to ask for address resolution.  namebuf should be at
  * least KSYM_NAME_LEN long: a pointer to namebuf is returned if
  * found, otherwise NULL. */
diff --git a/kernel/module.c b/kernel/module.c
index ab2978e4239c..1d6e996caa13 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3938,6 +3938,12 @@ static const char *get_ksymbol(struct module *mod,
 	return symname(kallsyms, best);
 }
 
+void * __weak dereference_module_function_descriptor(struct module *mod,
+						     void *ptr)
+{
+	return ptr;
+}
+
 /* For kallsyms to ask for address resolution.  NULL means not found.  Careful
  * not to lock to avoid deadlock on oopses, simply disable preemption. */
 const char *module_address_lookup(unsigned long addr,
-- 
2.15.0

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From - Thu Nov 08 21:40:32 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCHv4 2/6] ia64: Add .opd based function descriptor dereference
Date: Fri, 10 Nov 2017 08:48:26 +0900
Lines: 95
Approved: news@gmane.org
Message-ID: <20171109234830.5067-3-sergey.senozhatsky@gmail.com>
References: <20171109234830.5067-1-sergey.senozhatsky@gmail.com>
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Cc: Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>, Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2613939>

We are moving towards separate kernel and module function descriptor
dereference callbacks. This patch enables it for IA64.

For pointers that belong to the kernel
-  Added __start_opd and __end_opd pointers, to track the kernel
   .opd section address range;

-  Added dereference_kernel_function_descriptor(). Now we
   will dereference only function pointers that are within
   [__start_opd, __end_opd);

For pointers that belong to a module
-  Added dereference_module_function_descriptor() to handle module
   function descriptor dereference. Now we will dereference only
   pointers that are within [module->opd.start, module->opd.end).

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 arch/ia64/include/asm/sections.h | 10 +++++++++-
 arch/ia64/kernel/module.c        | 12 ++++++++++++
 arch/ia64/kernel/vmlinux.lds.S   |  2 ++
 3 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h
index f3481408594e..cea15f2dd38d 100644
--- a/arch/ia64/include/asm/sections.h
+++ b/arch/ia64/include/asm/sections.h
@@ -27,6 +27,8 @@ extern char __start_gate_brl_fsys_bubble_down_patchlist[], __end_gate_brl_fsys_b
 extern char __start_unwind[], __end_unwind[];
 extern char __start_ivt_text[], __end_ivt_text[];
 
+#define HAVE_DEREFERENCE_FUNCTION_DESCRIPTOR 1
+
 #undef dereference_function_descriptor
 static inline void *dereference_function_descriptor(void *ptr)
 {
@@ -38,6 +40,12 @@ static inline void *dereference_function_descriptor(void *ptr)
 	return ptr;
 }
 
+#undef dereference_kernel_function_descriptor
+static inline void *dereference_kernel_function_descriptor(void *ptr)
+{
+	if (ptr < (void *)__start_opd || ptr >= (void *)__end_opd)
+		return ptr;
+	return dereference_function_descriptor(ptr);
+}
 
 #endif /* _ASM_IA64_SECTIONS_H */
-
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index 853b5611a894..326448f9df16 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -36,6 +36,7 @@
 
 #include <asm/patch.h>
 #include <asm/unaligned.h>
+#include <asm/sections.h>
 
 #define ARCH_MODULE_DEBUG 0
 
@@ -918,3 +919,14 @@ module_arch_cleanup (struct module *mod)
 	if (mod->arch.core_unw_table)
 		unw_remove_unwind_table(mod->arch.core_unw_table);
 }
+
+void *dereference_module_function_descriptor(struct module *mod, void *ptr)
+{
+	Elf64_Shdr *opd = mod->arch.opd;
+
+	if (ptr < (void *)opd->sh_addr ||
+			ptr >= (void *)(opd->sh_addr + opd->sh_size))
+		return ptr;
+
+	return dereference_function_descriptor(ptr);
+}
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 58db59da0bd8..31e688981b4b 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -108,7 +108,9 @@ SECTIONS {
 	RODATA
 
 	.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	}
 
 	/*
-- 
2.15.0



From - Thu Nov 08 21:40:32 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCHv4 3/6] powerpc64: Add .opd based function descriptor dereference
Date: Fri, 10 Nov 2017 08:48:27 +0900
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Approved: news@gmane.org
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        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
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Xref: news.gmane.org gmane.linux.kernel:2613940 gmane.linux.ports.ia64:28296 gmane.linux.ports.parisc:27957 gmane.linux.ports.ppc64.devel:150114
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2613940>

We are moving towards separate kernel and module function descriptor
dereference callbacks. This patch enables it for powerpc64.

For pointers that belong to the kernel
-  Added __start_opd and __end_opd pointers, to track the kernel
   .opd section address range;

-  Added dereference_kernel_function_descriptor(). Now we
   will dereference only function pointers that are within
   [__start_opd, __end_opd);

For pointers that belong to a module
-  Added dereference_module_function_descriptor() to handle module
   function descriptor dereference. Now we will dereference only
   pointers that are within [module->opd.start, module->opd.end).

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 arch/powerpc/include/asm/module.h   |  3 +++
 arch/powerpc/include/asm/sections.h | 12 ++++++++++++
 arch/powerpc/kernel/module_64.c     | 14 ++++++++++++++
 arch/powerpc/kernel/vmlinux.lds.S   |  2 ++
 4 files changed, 31 insertions(+)

diff --git a/arch/powerpc/include/asm/module.h b/arch/powerpc/include/asm/module.h
index 6c0132c7212f..7e28442827f1 100644
--- a/arch/powerpc/include/asm/module.h
+++ b/arch/powerpc/include/asm/module.h
@@ -45,6 +45,9 @@ struct mod_arch_specific {
 	unsigned long tramp;
 #endif
 
+	/* For module function descriptor dereference */
+	unsigned long start_opd;
+	unsigned long end_opd;
 #else /* powerpc64 */
 	/* Indices of PLT sections within module. */
 	unsigned int core_plt_section;
diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
index 82bec63bbd4f..e335a8f846af 100644
--- a/arch/powerpc/include/asm/sections.h
+++ b/arch/powerpc/include/asm/sections.h
@@ -66,6 +66,9 @@ static inline int overlaps_kvm_tmp(unsigned long start, unsigned long end)
 }
 
 #ifdef PPC64_ELF_ABI_v1
+
+#define HAVE_DEREFERENCE_FUNCTION_DESCRIPTOR 1
+
 #undef dereference_function_descriptor
 static inline void *dereference_function_descriptor(void *ptr)
 {
@@ -76,6 +79,15 @@ static inline void *dereference_function_descriptor(void *ptr)
 		ptr = p;
 	return ptr;
 }
+
+#undef dereference_kernel_function_descriptor
+static inline void *dereference_kernel_function_descriptor(void *ptr)
+{
+	if (ptr < (void *)__start_opd || ptr >= (void *)__end_opd)
+		return ptr;
+
+	return dereference_function_descriptor(ptr);
+}
 #endif /* PPC64_ELF_ABI_v1 */
 
 #endif
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index 759104b99f9f..218971ac7e04 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -93,6 +93,15 @@ static unsigned int local_entry_offset(const Elf64_Sym *sym)
 {
 	return 0;
 }
+
+void *dereference_module_function_descriptor(struct module *mod, void *ptr)
+{
+	if (ptr < (void *)mod->arch.start_opd ||
+			ptr >= (void *)mod->arch.end_opd)
+		return ptr;
+
+	return dereference_function_descriptor(ptr);
+}
 #endif
 
 #define STUB_MAGIC 0x73747562 /* stub */
@@ -344,6 +353,11 @@ int module_frob_arch_sections(Elf64_Ehdr *hdr,
 		else if (strcmp(secstrings+sechdrs[i].sh_name,"__versions")==0)
 			dedotify_versions((void *)hdr + sechdrs[i].sh_offset,
 					  sechdrs[i].sh_size);
+		else if (!strcmp(secstrings + sechdrs[i].sh_name, ".opd")) {
+			me->arch.start_opd = sechdrs[i].sh_addr;
+			me->arch.end_opd = sechdrs[i].sh_addr +
+					   sechdrs[i].sh_size;
+		}
 
 		/* We don't handle .init for the moment: rename to _init */
 		while ((p = strstr(secstrings + sechdrs[i].sh_name, ".init")))
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 0494e1566ee2..5dac5ab22fa2 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -278,7 +278,9 @@ SECTIONS
 	}
 
 	.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	}
 
 	. = ALIGN(256);
-- 
2.15.0



From - Thu Nov 08 21:40:32 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCHv4 4/6] parisc64: Add .opd based function descriptor dereference
Date: Fri, 10 Nov 2017 08:48:28 +0900
Lines: 132
Approved: news@gmane.org
Message-ID: <20171109234830.5067-5-sergey.senozhatsky@gmail.com>
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Cc: Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>, Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/27958>

We are moving towards separate kernel and module function descriptor
dereference callbacks. This patch enables it for parisc64.

For pointers that belong to the kernel
-  Added __start_opd and __end_opd pointers, to track the kernel
   .opd section address range;

-  Added dereference_kernel_function_descriptor(). Now we
   will dereference only function pointers that are within
   [__start_opd, __end_opd);

For pointers that belong to a module
-  Added dereference_module_function_descriptor() to handle module
   function descriptor dereference. Now we will dereference only
   pointers that are within [module->opd.start, module->opd.end).

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/boot/compressed/vmlinux.lds.S |  2 ++
 arch/parisc/include/asm/sections.h        |  6 ++++++
 arch/parisc/kernel/module.c               | 16 ++++++++++++++++
 arch/parisc/kernel/process.c              |  9 +++++++++
 arch/parisc/kernel/vmlinux.lds.S          |  2 ++
 5 files changed, 35 insertions(+)

diff --git a/arch/parisc/boot/compressed/vmlinux.lds.S b/arch/parisc/boot/compressed/vmlinux.lds.S
index a4ce3314e78e..4ebd4e65524c 100644
--- a/arch/parisc/boot/compressed/vmlinux.lds.S
+++ b/arch/parisc/boot/compressed/vmlinux.lds.S
@@ -29,7 +29,9 @@ SECTIONS
 	. = ALIGN(16);
 	/* Linkage tables */
 	.opd : {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	} PROVIDE (__gp = .);
 	.plt : {
 		*(.plt)
diff --git a/arch/parisc/include/asm/sections.h b/arch/parisc/include/asm/sections.h
index accdf40aa5b7..5a40b51df80c 100644
--- a/arch/parisc/include/asm/sections.h
+++ b/arch/parisc/include/asm/sections.h
@@ -6,8 +6,14 @@
 #include <asm-generic/sections.h>
 
 #ifdef CONFIG_64BIT
+
+#define HAVE_DEREFERENCE_FUNCTION_DESCRIPTOR 1
+
 #undef dereference_function_descriptor
 void *dereference_function_descriptor(void *);
+
+#undef dereference_kernel_function_descriptor
+void *dereference_kernel_function_descriptor(void *);
 #endif
 
 #endif
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index f1a76935a314..b5b3cb00f1fb 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -66,6 +66,7 @@
 
 #include <asm/pgtable.h>
 #include <asm/unwind.h>
+#include <asm/sections.h>
 
 #if 0
 #define DEBUGP printk
@@ -954,3 +955,18 @@ void module_arch_cleanup(struct module *mod)
 {
 	deregister_unwind_table(mod);
 }
+
+#ifdef CONFIG_64BIT
+void *dereference_module_function_descriptor(struct module *mod, void *ptr)
+{
+	unsigned long start_opd = (Elf64_Addr)mod->core_layout.base +
+				   mod->arch.fdesc_offset;
+	unsigned long end_opd = start_opd +
+				mod->arch.fdesc_count * sizeof(Elf64_Fdesc);
+
+	if (ptr < (void *)start_opd || ptr >= (void *)end_opd)
+		return ptr;
+
+	return dereference_function_descriptor(ptr);
+}
+#endif
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 30f92391a93e..6c4585103a91 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -276,6 +276,15 @@ void *dereference_function_descriptor(void *ptr)
 		ptr = p;
 	return ptr;
 }
+
+void *dereference_kernel_function_descriptor(void *ptr)
+{
+	if (ptr < (void *)__start_opd ||
+			ptr >= (void *)__end_opd)
+		return ptr;
+
+	return dereference_function_descriptor(ptr);
+}
 #endif
 
 static inline unsigned long brk_rnd(void)
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 159a2ec0b4e0..da2e31190efa 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -100,7 +100,9 @@ SECTIONS
 	. = ALIGN(16);
 	/* Linkage tables */
 	.opd : {
+		__start_opd = .;
 		*(.opd)
+		__end_opd = .;
 	} PROVIDE (__gp = .);
 	.plt : {
 		*(.plt)
-- 
2.15.0

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From - Thu Nov 08 21:40:32 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: [PATCHv4 6/6] checkpatch: add pF/pf deprecation warning
Date: Fri, 10 Nov 2017 08:48:30 +0900
Lines: 52
Approved: news@gmane.org
Message-ID: <20171109234830.5067-7-sergey.senozhatsky@gmail.com>
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        Steven Rostedt <rostedt@goodmis.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
        Joe Perches <joe@perches.com>,
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To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
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We deprecated '%pF/%pf' printk specifiers, since '%pS/%ps' is now smart
enough to handle function pointer dereference on platforms where such
dereference is required.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
---
 scripts/checkpatch.pl | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 3453df9f90ab..d081a2b7166e 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5752,18 +5752,25 @@ sub process {
 		        for (my $count = $linenr; $count <= $lc; $count++) {
 				my $fmt = get_quoted_string($lines[$count - 1], raw_line($count, 0));
 				$fmt =~ s/%%//g;
-				if ($fmt =~ /(\%[\*\d\.]*p(?![\WFfSsBKRraEhMmIiUDdgVCbGNO]).)/) {
+				if ($fmt =~ /(\%[\*\d\.]*p(?![\WSsBKRraEhMmIiUDdgVCbGNO]).)/) {
 					$bad_extension = $1;
 					last;
 				}
 			}
 			if ($bad_extension ne "") {
 				my $stat_real = raw_line($linenr, 0);
+				my $ext_type = "Invalid";
+				my $use = "";
 				for (my $count = $linenr + 1; $count <= $lc; $count++) {
 					$stat_real = $stat_real . "\n" . raw_line($count, 0);
 				}
+				if ($bad_extension =~ /p[Ff]/) {
+					$ext_type = "Deprecated";
+					$use = " - use %pS instead";
+					$use =~ s/pS/ps/ if ($bad_extension =~ /pf/);
+				}
 				WARN("VSPRINTF_POINTER_EXTENSION",
-				     "Invalid vsprintf pointer extension '$bad_extension'\n" . "$here\n$stat_real\n");
+				     "$ext_type vsprintf pointer extension '$bad_extension'$use\n" . "$here\n$stat_real\n");
 			}
 		}
 
-- 
2.15.0

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From - Thu Nov 08 21:40:32 2018
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From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCHv4 5/6] symbol lookup: introduce dereference_symbol_descriptor()
Date: Fri, 10 Nov 2017 08:48:29 +0900
Lines: 174
Approved: news@gmane.org
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        Jessica Yu <jeyu@kernel.org>, Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Helge Deller <deller@gmx.de>,
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        James Bottomley <jejb@parisc-linux.org>
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Xref: news.gmane.org gmane.linux.kernel:2613943 gmane.linux.ports.ia64:28299 gmane.linux.ports.parisc:27960 gmane.linux.ports.ppc64.devel:150117
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2613943>

dereference_symbol_descriptor() invokes appropriate ARCH specific
function descriptor dereference callbacks:
- dereference_kernel_function_descriptor() if the pointer is a
  kernel symbol;

- dereference_module_function_descriptor() if the pointer is a
  module symbol.

This is the last step needed to make '%pS/%ps' smart enough to
handle function descriptor dereference on affected ARCHs and
to retire '%pF/%pf'.

To refresh it:
  Some architectures (ia64, ppc64, parisc64) use an indirect pointer
  for C function pointers - the function pointer points to a function
  descriptor and we need to dereference it to get the actual function
  pointer.

  Function descriptors live in .opd elf section and all affected
  ARCHs (ia64, ppc64, parisc64) handle it properly for kernel and
  modules. So we, technically, can decide if the dereference is
  needed by simply looking at the pointer: if it belongs to .opd
  section then we need to dereference it.

  The kernel and modules have their own .opd sections, obviously,
  that's why we need to split dereference_function_descriptor()
  and use separate kernel and module dereference arch callbacks.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 Documentation/printk-formats.txt | 49 ++++++++++++++++------------------------
 include/linux/kallsyms.h         |  2 ++
 kernel/kallsyms.c                | 19 ++++++++++++++++
 lib/vsprintf.c                   |  5 ++--
 4 files changed, 42 insertions(+), 33 deletions(-)

diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 361789df51ec..2f17e684b72e 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -50,42 +50,31 @@ Symbols/Function Pointers
 
 ::
 
-	%pF	versatile_init+0x0/0x110
-	%pf	versatile_init
-	%pS	versatile_init+0x0/0x110
-	%pSR	versatile_init+0x9/0x110
-		(with __builtin_extract_return_addr() translation)
-	%ps	versatile_init
-	%pB	prev_fn_of_versatile_init+0x88/0x88
-
-The ``F`` and ``f`` specifiers are for printing function pointers,
-for example, f->func, &gettimeofday. They have the same result as
-``S`` and ``s`` specifiers. But they do an extra conversion on
-ia64, ppc64 and parisc64 architectures where the function pointers
-are actually function descriptors.
-
-The ``S`` and ``s`` specifiers can be used for printing symbols
-from direct addresses, for example, __builtin_return_address(0),
-(void *)regs->ip. They result in the symbol name with (``S``) or
-without (``s``) offsets. If KALLSYMS are disabled then the symbol
-address is printed instead.
+        %pS     versatile_init+0x0/0x110
+        %ps     versatile_init
+        %pF     versatile_init+0x0/0x110
+        %pf     versatile_init
+        %pSR    versatile_init+0x9/0x110
+                (with __builtin_extract_return_addr() translation)
+        %pB     prev_fn_of_versatile_init+0x88/0x88
+
+The ``S`` and ``s`` specifiers are used for printing a pointer in symbolic
+format. They result in the symbol name with (``S``) or without (``s``)
+offsets. If KALLSYMS are disabled then the symbol address is printed instead.
+
+Note, that the ``F`` and ``f`` specifiers are identical to ``S`` (``s``)
+and thus deprecated. We have ``F`` and ``f`` because on ia64, ppc64 and
+parisc64 function pointers are indirect and, in fact, are function
+descriptors, which require additional dereferencing before we can lookup
+the symbol. As of now, ``S`` and ``s`` perform dereferencing on those
+platforms (when needed), so ``F`` and ``f`` exist for compatibility
+reasons only.
 
 The ``B`` specifier results in the symbol name with offsets and should be
 used when printing stack backtraces. The specifier takes into
 consideration the effect of compiler optimisations which may occur
 when tail-call``s are used and marked with the noreturn GCC attribute.
 
-Examples::
-
-	printk("Going to call: %pF\n", gettimeofday);
-	printk("Going to call: %pF\n", p->func);
-	printk("%s: called from %pS\n", __func__, (void *)_RET_IP_);
-	printk("%s: called from %pS\n", __func__,
-				(void *)__builtin_return_address(0));
-	printk("Faulted at %pS\n", (void *)regs->ip);
-	printk(" %s%pB\n", (reliable ? "" : "? "), (void *)*stack);
-
-
 Kernel Pointers
 ===============
 
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 11dd93e42580..73f7e874c3e1 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -16,6 +16,8 @@
 
 struct module;
 
+void *dereference_symbol_descriptor(void *ptr);
+
 #ifdef CONFIG_KALLSYMS
 /* Lookup the address for a symbol. Returns 0 if not found. */
 unsigned long kallsyms_lookup_name(const char *name);
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 1966fe1c2b57..18b3dffc4b84 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -411,6 +411,25 @@ static int __sprint_symbol(char *buffer, unsigned long address,
 	return len;
 }
 
+void *dereference_symbol_descriptor(void *ptr)
+{
+#ifdef HAVE_DEREFERENCE_FUNCTION_DESCRIPTOR
+	struct module *mod;
+
+	ptr = dereference_kernel_function_descriptor(ptr);
+	if (is_ksym_addr((unsigned long)ptr))
+		return ptr;
+
+	preempt_disable();
+	mod = __module_address((unsigned long)ptr);
+	preempt_enable();
+
+	if (mod)
+		ptr = dereference_module_function_descriptor(mod, ptr);
+#endif
+	return ptr;
+}
+
 /**
  * sprint_symbol - Look up a kernel symbol and return it in a text buffer
  * @buffer: buffer to be stored
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 1746bae94d41..16e2eefb0f79 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -40,7 +40,6 @@
 #include "../mm/internal.h"	/* For the trace_print_flags arrays */
 
 #include <asm/page.h>		/* for PAGE_SIZE */
-#include <asm/sections.h>	/* for dereference_function_descriptor() */
 #include <asm/byteorder.h>	/* cpu_to_le16 */
 
 #include <linux/string_helpers.h>
@@ -1723,10 +1722,10 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 	switch (*fmt) {
 	case 'F':
 	case 'f':
-		ptr = dereference_function_descriptor(ptr);
-		/* Fallthrough */
 	case 'S':
 	case 's':
+		ptr = dereference_symbol_descriptor(ptr);
+		/* Fallthrough */
 	case 'B':
 		return symbol_string(buf, end, ptr, spec, fmt);
 	case 'R':
-- 
2.15.0



From - Thu Nov 08 21:40:32 2018
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On Fri, Nov 10, 2017 at 08:48:29AM +0900, Sergey Senozhatsky wrote:
> -Examples::
> -
> -	printk("Going to call: %pF\n", gettimeofday);
> -	printk("Going to call: %pF\n", p->func);
> -	printk("%s: called from %pS\n", __func__, (void *)_RET_IP_);
> -	printk("%s: called from %pS\n", __func__,
> -				(void *)__builtin_return_address(0));
> -	printk("Faulted at %pS\n", (void *)regs->ip);
> -	printk(" %s%pB\n", (reliable ? "" : "? "), (void *)*stack);

Did you mean to delete the Examples completely?  Wouldn't it
be better to just update (s/%pF/%pS/g)?

-Tony
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Subject: Re: [PATCHv4 0/6] printk/ia64/ppc64/parisc64: let's deprecate
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On Fri, Nov 10, 2017 at 08:48:24AM +0900, Sergey Senozhatsky wrote:
> 	All Ack-s/Tested-by-s were dropped, since the patch set has been
> reworked. I'm kindly asking arch-s maintainers and developers to test it
> once again. Sorry for any inconveniences and thanks for your help in
> advance.

You can add back the:

Tested-by: Tony Luck <tony.luck@intel.com> #ia64

Apart from my comment about dropping the Examples from the
Documentation the series looks OK to me.

-Tony
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/27963>

The series is a preparation series for individual architectures
to use 64 bit time_t syscalls in compat and 32 bit emulation modes.

This is a follow up to the series Arnd Bergmann posted:
https://sourceware.org/ml/libc-alpha/2015-05/msg00070.html

Big picture is as per the lwn article:
https://lwn.net/Articles/643234/

The series is directed at converting posix clock syscalls:
clock_gettime, clock_settime, clock_getres and clock_nanosleep
to use a new data structure __kernel_timespec at syscall boundaries.
__kernel_timespec maintains 64 bit time_t across all execution modes.

vdso will be handled as part of each architecture when they enable
support for 64 bit time_t.

The compat syscalls are repurposed to provide backward compatibility
by using them as native syscalls as well for 32 bit architectures.
They will continue to use timespec at syscall boundaries.

CONFIG_64_BIT_TIME controls whether the syscalls use __kernel_timespec
or timespec at syscall boundaries.

The series does the following:
1. Enable compat syscalls unconditionally.
2. Add a new __kernel_timespec type to be used as the data structure
   for all the new syscalls.
3. Add new config CONFIG_64BIT_TIME(intead of the CONFIG_COMPAT_TIME in
   [1] and [2] to switch to new definition of __kernel_timespec. It is
   the same as struct timespec otherwise.

Arnd Bergmann (1):
  y2038: introduce CONFIG_64BIT_TIME

Deepa Dinamani (8):
  include: Move compat_timespec/ timeval to compat_time.h
  compat: Make compat helpers independent of CONFIG_COMPAT
  compat: enable compat_get/put_timespec64 always
  posix-clocks: Enable compat syscalls always
  include: Add new y2038 safe __kernel_timespec
  fix get_timespec64() for y2038 safe compat interfaces
  change time types to new y2038 safe __kernel_* types
  nanosleep: change time types to safe __kernel_* types

 arch/Kconfig                           | 11 ++++
 arch/arm64/include/asm/compat.h        | 11 ----
 arch/arm64/include/asm/stat.h          |  1 +
 arch/arm64/kernel/hw_breakpoint.c      |  1 -
 arch/arm64/kernel/perf_regs.c          |  2 +-
 arch/arm64/kernel/process.c            |  1 -
 arch/mips/include/asm/compat.h         | 11 ----
 arch/mips/kernel/signal32.c            |  2 +-
 arch/parisc/include/asm/compat.h       | 11 ----
 arch/powerpc/include/asm/compat.h      | 11 ----
 arch/powerpc/kernel/asm-offsets.c      |  2 +-
 arch/powerpc/oprofile/backtrace.c      |  2 +-
 arch/s390/hypfs/hypfs_sprp.c           |  1 -
 arch/s390/include/asm/compat.h         | 11 ----
 arch/s390/include/asm/elf.h            |  3 +-
 arch/s390/kvm/priv.c                   |  1 -
 arch/s390/pci/pci_clp.c                |  1 -
 arch/sparc/include/asm/compat.h        | 11 ----
 arch/tile/include/asm/compat.h         | 11 ----
 arch/x86/events/core.c                 |  2 +-
 arch/x86/include/asm/compat.h          | 11 ----
 arch/x86/include/asm/ftrace.h          |  2 +-
 arch/x86/include/asm/sys_ia32.h        |  2 +-
 arch/x86/kernel/sys_x86_64.c           |  2 +-
 drivers/s390/block/dasd_ioctl.c        |  1 -
 drivers/s390/char/fs3270.c             |  1 -
 drivers/s390/char/sclp_ctl.c           |  1 -
 drivers/s390/char/vmcp.c               |  1 -
 drivers/s390/cio/chsc_sch.c            |  1 -
 drivers/s390/net/qeth_core_main.c      |  2 +-
 drivers/staging/pi433/pi433_if.c       |  2 +-
 include/linux/compat.h                 |  7 ++-
 include/linux/compat_time.h            | 23 +++++++++
 include/linux/restart_block.h          |  7 +--
 include/linux/syscalls.h               | 12 ++---
 include/linux/time.h                   |  4 +-
 include/linux/time64.h                 | 10 +++-
 include/uapi/asm-generic/posix_types.h |  1 +
 include/uapi/linux/time.h              |  7 +++
 kernel/Makefile                        |  2 +-
 kernel/compat.c                        | 92 ++++++++++++++++++----------------
 kernel/time/hrtimer.c                  |  7 +--
 kernel/time/posix-stubs.c              | 12 ++---
 kernel/time/posix-timers.c             | 20 ++++----
 kernel/time/time.c                     | 10 +++-
 45 files changed, 152 insertions(+), 195 deletions(-)
 create mode 100644 include/linux/compat_time.h


base-commit: d9e0e63d9a6f88440eb201e1491fcf730272c706
-- 
2.11.0

Cc: acme@kernel.org
Cc: benh@kernel.crashing.org
Cc: borntraeger@de.ibm.com
Cc: catalin.marinas@arm.com
Cc: cmetcalf@mellanox.com
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Cc: gregkh@linuxfoundation.org
Cc: heiko.carstens@de.ibm.com
Cc: hoeppner@linux.vnet.ibm.com
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From: Deepa Dinamani <deepa.kernel@gmail.com>
Newsgroups: gmane.linux.drivers.driver-project.devel,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.kernel.year-2038,gmane.linux.oprofile,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 1/9] include: Move compat_timespec/ timeval to compat_time.h
Date: Fri, 10 Nov 2017 14:42:51 -0800
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Xref: news.gmane.org gmane.linux.drivers.driver-project.devel:110781 gmane.linux.ports.mips.general:62063 gmane.linux.ports.sparc:26852 gmane.linux.kernel.year-2038:2280 gmane.linux.oprofile:13102 gmane.linux.ports.parisc:27964 gmane.linux.kernel:2614662 gmane.linux.ports.ppc64.devel:150156
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.driver-project.devel/110781>

All the current architecture specific defines for these
are the same. Refactor these common defines to a common
header file.

The new common linux/compat_time.h is also useful as it
will eventually be used to hold all the defines that
are needed for compat time types that support non y2038
safe types. New architectures need not have to define these
new types as they will only use new y2038 safe syscalls.
This file can be deleted after y2038 when we stop supporting
non y2038 safe syscalls.

The patch also requires an operation similar to:

git grep "asm/compat\.h" | cut -d ":" -f 1 |  xargs -n 1 sed -i -e "s%asm/compat.h%linux/compat.h%g"

Cc: acme@kernel.org
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Cc: borntraeger@de.ibm.com
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Cc: cmetcalf@mellanox.com
Cc: cohuck@redhat.com
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Cc: gregkh@linuxfoundation.org
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Cc: x86@kernel.org
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
---
 arch/arm64/include/asm/compat.h   | 11 -----------
 arch/arm64/include/asm/stat.h     |  1 +
 arch/arm64/kernel/hw_breakpoint.c |  1 -
 arch/arm64/kernel/perf_regs.c     |  2 +-
 arch/arm64/kernel/process.c       |  1 -
 arch/mips/include/asm/compat.h    | 11 -----------
 arch/mips/kernel/signal32.c       |  2 +-
 arch/parisc/include/asm/compat.h  | 11 -----------
 arch/powerpc/include/asm/compat.h | 11 -----------
 arch/powerpc/kernel/asm-offsets.c |  2 +-
 arch/powerpc/oprofile/backtrace.c |  2 +-
 arch/s390/hypfs/hypfs_sprp.c      |  1 -
 arch/s390/include/asm/compat.h    | 11 -----------
 arch/s390/include/asm/elf.h       |  3 +--
 arch/s390/kvm/priv.c              |  1 -
 arch/s390/pci/pci_clp.c           |  1 -
 arch/sparc/include/asm/compat.h   | 11 -----------
 arch/tile/include/asm/compat.h    | 11 -----------
 arch/x86/events/core.c            |  2 +-
 arch/x86/include/asm/compat.h     | 11 -----------
 arch/x86/include/asm/ftrace.h     |  2 +-
 arch/x86/include/asm/sys_ia32.h   |  2 +-
 arch/x86/kernel/sys_x86_64.c      |  2 +-
 drivers/s390/block/dasd_ioctl.c   |  1 -
 drivers/s390/char/fs3270.c        |  1 -
 drivers/s390/char/sclp_ctl.c      |  1 -
 drivers/s390/char/vmcp.c          |  1 -
 drivers/s390/cio/chsc_sch.c       |  1 -
 drivers/s390/net/qeth_core_main.c |  2 +-
 drivers/staging/pi433/pi433_if.c  |  2 +-
 include/linux/compat.h            |  1 +
 include/linux/compat_time.h       | 19 +++++++++++++++++++
 32 files changed, 32 insertions(+), 110 deletions(-)
 create mode 100644 include/linux/compat_time.h

diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index e39d487bf724..d4f9c9ee3b15 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -34,7 +34,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -66,16 +65,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 #ifdef __AARCH64EB__
 	short		st_dev;
diff --git a/arch/arm64/include/asm/stat.h b/arch/arm64/include/asm/stat.h
index 15e35598ac40..eab738019707 100644
--- a/arch/arm64/include/asm/stat.h
+++ b/arch/arm64/include/asm/stat.h
@@ -20,6 +20,7 @@
 
 #ifdef CONFIG_COMPAT
 
+#include <linux/compat_time.h>
 #include <asm/compat.h>
 
 /*
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index 749f81779420..bfa2b78cf0e3 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -29,7 +29,6 @@
 #include <linux/ptrace.h>
 #include <linux/smp.h>
 
-#include <asm/compat.h>
 #include <asm/current.h>
 #include <asm/debug-monitors.h>
 #include <asm/hw_breakpoint.h>
diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c
index 1d091d048d04..929fc369d0be 100644
--- a/arch/arm64/kernel/perf_regs.c
+++ b/arch/arm64/kernel/perf_regs.c
@@ -5,7 +5,7 @@
 #include <linux/bug.h>
 #include <linux/sched/task_stack.h>
 
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/perf_regs.h>
 #include <asm/ptrace.h>
 
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index b2adcce7bc18..1acb3097d35b 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -52,7 +52,6 @@
 #include <linux/thread_info.h>
 
 #include <asm/alternative.h>
-#include <asm/compat.h>
 #include <asm/cacheflush.h>
 #include <asm/exec.h>
 #include <asm/fpsimd.h>
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 8e2b5b556488..ebbf3f04f82b 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -14,7 +14,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_suseconds_t;
 
@@ -46,16 +45,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	s32		st_pad1[3];
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index cf5c7c05e5a3..a6b04c70a8cb 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -14,7 +14,7 @@
 #include <linux/signal.h>
 #include <linux/syscalls.h>
 
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/compat-signal.h>
 #include <linux/uaccess.h>
 #include <asm/unistd.h>
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 07f48827afda..ea453c356bf9 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -13,7 +13,6 @@
 
 typedef u32	compat_size_t;
 typedef s32	compat_ssize_t;
-typedef s32	compat_time_t;
 typedef s32	compat_clock_t;
 typedef s32	compat_pid_t;
 typedef u32	__compat_uid_t;
@@ -40,16 +39,6 @@ typedef u32	compat_ulong_t;
 typedef u64	compat_u64;
 typedef u32	compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t		tv_sec;
-	s32			tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t		tv_sec;
-	s32			tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t		st_dev;	/* dev_t is 32 bits on parisc */
 	compat_ino_t		st_ino;	/* 32 bits */
diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
index a035b1e5dfa7..d48892bcd38f 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -17,7 +17,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u32		__compat_uid_t;
@@ -45,16 +44,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	compat_ino_t	st_ino;
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 4ce0e8eccbcf..7698bd054181 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -42,7 +42,7 @@
 #include <asm/paca.h>
 #include <asm/lppaca.h>
 #include <asm/cache.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/mmu.h>
 #include <asm/hvcall.h>
 #include <asm/xics.h>
diff --git a/arch/powerpc/oprofile/backtrace.c b/arch/powerpc/oprofile/backtrace.c
index ecc66d5f02c9..11ff763c03ad 100644
--- a/arch/powerpc/oprofile/backtrace.c
+++ b/arch/powerpc/oprofile/backtrace.c
@@ -11,7 +11,7 @@
 #include <linux/sched.h>
 #include <asm/processor.h>
 #include <linux/uaccess.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/oprofile_impl.h>
 
 #define STACK_SP(STACK)		*(STACK)
diff --git a/arch/s390/hypfs/hypfs_sprp.c b/arch/s390/hypfs/hypfs_sprp.c
index ae0ed8dd5f1b..5d85a039391c 100644
--- a/arch/s390/hypfs/hypfs_sprp.c
+++ b/arch/s390/hypfs/hypfs_sprp.c
@@ -13,7 +13,6 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/uaccess.h>
-#include <asm/compat.h>
 #include <asm/diag.h>
 #include <asm/sclp.h>
 #include "hypfs.h"
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 1b60eb3676d5..32a77b6d9a59 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -53,7 +53,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -97,16 +96,6 @@ typedef struct {
 	u32 gprs_high[NUM_GPRS];
 } s390_compat_regs_high;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	u16		__pad1;
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 9a3cb3983c01..78f75384f891 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -126,7 +126,7 @@
  */
 
 #include <asm/ptrace.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/syscall.h>
 #include <asm/user.h>
 
@@ -136,7 +136,6 @@ typedef s390_regs elf_gregset_t;
 typedef s390_fp_regs compat_elf_fpregset_t;
 typedef s390_compat_regs compat_elf_gregset_t;
 
-#include <linux/compat.h>
 #include <linux/sched/mm.h>	/* for task_struct */
 #include <asm/mmu_context.h>
 
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index c954ac49eee4..07eebba4bd37 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -29,7 +29,6 @@
 #include <asm/gmap.h>
 #include <asm/io.h>
 #include <asm/ptrace.h>
-#include <asm/compat.h>
 #include <asm/sclp.h>
 #include "gaccess.h"
 #include "kvm-s390.h"
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 93cd0f1ca12b..19b2d2a9b43d 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -19,7 +19,6 @@
 #include <linux/uaccess.h>
 #include <asm/pci_debug.h>
 #include <asm/pci_clp.h>
-#include <asm/compat.h>
 #include <asm/clp.h>
 #include <uapi/asm/clp.h>
 
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index 977c3f280ba1..7348f111d169 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -11,7 +11,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -39,16 +38,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	compat_ino_t	st_ino;
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index c14e36f008c8..c3a326c9ae75 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -29,7 +29,6 @@ typedef u32		compat_ulong_t;
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
 typedef s32		compat_off_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef u32		compat_ino_t;
 typedef u32		compat_caddr_t;
@@ -59,16 +58,6 @@ typedef unsigned long compat_elf_greg_t;
 #define COMPAT_ELF_NGREG (sizeof(struct pt_regs) / sizeof(compat_elf_greg_t))
 typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 #define compat_stat stat
 #define compat_statfs statfs
 
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 140d33288e78..6b8961912781 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2391,7 +2391,7 @@ static unsigned long get_segment_base(unsigned int segment)
 
 #ifdef CONFIG_IA32_EMULATION
 
-#include <asm/compat.h>
+#include <linux/compat.h>
 
 static inline int
 perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry_ctx *entry)
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index a600a6cda9ec..5d8e0fc204db 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -17,7 +17,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -46,16 +45,6 @@ typedef u32		compat_u32;
 typedef u64 __attribute__((aligned(4))) compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	u16		__pad1;
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index 09ad88572746..db25aa15b705 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -49,7 +49,7 @@ int ftrace_int3_handler(struct pt_regs *regs);
 #if !defined(__ASSEMBLY__) && !defined(COMPILE_OFFSETS)
 
 #if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_IA32_EMULATION)
-#include <asm/compat.h>
+#include <linux/compat.h>
 
 /*
  * Because ia32 syscalls do not map to x86_64 syscall numbers
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index 82c34ee25a65..8527b26ad36f 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -16,7 +16,7 @@
 #include <linux/linkage.h>
 #include <linux/types.h>
 #include <linux/signal.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/ia32.h>
 
 /* ia32/sys_ia32.c */
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index a63fe77b3217..13d51bd80409 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -19,7 +19,7 @@
 #include <linux/elf.h>
 
 #include <asm/elf.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/ia32.h>
 #include <asm/syscalls.h>
 #include <asm/mpx.h>
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 7bdc6aaa0ba3..2016e0ed5865 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -18,7 +18,6 @@
 #include <linux/fs.h>
 #include <linux/blkpg.h>
 #include <linux/slab.h>
-#include <asm/compat.h>
 #include <asm/ccwdev.h>
 #include <asm/schid.h>
 #include <asm/cmb.h>
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index c4518168fd02..d74facaa1755 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -18,7 +18,6 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 
-#include <asm/compat.h>
 #include <asm/ccwdev.h>
 #include <asm/cio.h>
 #include <asm/ebcdic.h>
diff --git a/drivers/s390/char/sclp_ctl.c b/drivers/s390/char/sclp_ctl.c
index a78cea0c3a09..248b5db3eaa8 100644
--- a/drivers/s390/char/sclp_ctl.c
+++ b/drivers/s390/char/sclp_ctl.c
@@ -14,7 +14,6 @@
 #include <linux/init.h>
 #include <linux/ioctl.h>
 #include <linux/fs.h>
-#include <asm/compat.h>
 #include <asm/sclp_ctl.h>
 #include <asm/sclp.h>
 
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index 17e411c57576..948ce82a7725 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -23,7 +23,6 @@
 #include <linux/mutex.h>
 #include <linux/cma.h>
 #include <linux/mm.h>
-#include <asm/compat.h>
 #include <asm/cpcmd.h>
 #include <asm/debug.h>
 #include <asm/vmcp.h>
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 8e7e19b9e92c..662d24c6b79c 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -15,7 +15,6 @@
 #include <linux/miscdevice.h>
 #include <linux/kernel_stat.h>
 
-#include <asm/compat.h>
 #include <asm/cio.h>
 #include <asm/chsc.h>
 #include <asm/isc.h>
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 49b9efeba1bd..8259c0ae3395 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -26,7 +26,7 @@
 #include <asm/chpid.h>
 #include <asm/io.h>
 #include <asm/sysinfo.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/diag.h>
 #include <asm/cio.h>
 #include <asm/ccwdev.h>
diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index a960fe2e7875..3fcb238b1995 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -48,7 +48,7 @@
 #include <linux/wait.h>
 #include <linux/spi/spi.h>
 #ifdef CONFIG_COMPAT
-#include <asm/compat.h>
+#include <linux/compat.h>
 #endif
 
 #include "pi433_if.h"
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 0fc36406f32c..1a5e397ffcd4 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -7,6 +7,7 @@
  */
 
 #include <linux/types.h>
+#include <linux/compat_time.h>
 
 #ifdef CONFIG_COMPAT
 
diff --git a/include/linux/compat_time.h b/include/linux/compat_time.h
new file mode 100644
index 000000000000..56a54a1e4355
--- /dev/null
+++ b/include/linux/compat_time.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_COMPAT_TIME_H
+#define _LINUX_COMPAT_TIME_H
+
+#include <linux/types.h>
+
+typedef s32		compat_time_t;
+
+struct compat_timespec {
+	compat_time_t	tv_sec;
+	s32		tv_nsec;
+};
+
+struct compat_timeval {
+	compat_time_t	tv_sec;
+	s32		tv_usec;
+};
+
+#endif /* _LINUX_COMPAT_TIME_H */
-- 
2.11.0

From - Thu Nov 08 21:40:33 2018
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Subject: Re: [PATCH 1/9] include: Move compat_timespec/ timeval to
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Date: Fri, 10 Nov 2017 21:38:05 -0500
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Approved: news@gmane.org
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To: Deepa Dinamani <deepa.kernel@gmail.com>
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On Fri, 10 Nov 2017 14:42:51 -0800
Deepa Dinamani <deepa.kernel@gmail.com> wrote:

> diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
> index 09ad88572746..db25aa15b705 100644
> --- a/arch/x86/include/asm/ftrace.h
> +++ b/arch/x86/include/asm/ftrace.h
> @@ -49,7 +49,7 @@ int ftrace_int3_handler(struct pt_regs *regs);
>  #if !defined(__ASSEMBLY__) && !defined(COMPILE_OFFSETS)
>  
>  #if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_IA32_EMULATION)
> -#include <asm/compat.h>
> +#include <linux/compat.h>
>  

Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

-- Steve
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On (11/10/17 10:11), Luck, Tony wrote:
> On Fri, Nov 10, 2017 at 08:48:24AM +0900, Sergey Senozhatsky wrote:
> > 	All Ack-s/Tested-by-s were dropped, since the patch set has been
> > reworked. I'm kindly asking arch-s maintainers and developers to test it
> > once again. Sorry for any inconveniences and thanks for your help in
> > advance.
> 
> You can add back the:
> 
> Tested-by: Tony Luck <tony.luck@intel.com> #ia64

Thanks a ton, Tony!

	-ss
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        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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On (11/10/17 10:09), Luck, Tony wrote:
> On Fri, Nov 10, 2017 at 08:48:29AM +0900, Sergey Senozhatsky wrote:
> > -Examples::
> > -
> > -	printk("Going to call: %pF\n", gettimeofday);
> > -	printk("Going to call: %pF\n", p->func);
> > -	printk("%s: called from %pS\n", __func__, (void *)_RET_IP_);
> > -	printk("%s: called from %pS\n", __func__,
> > -				(void *)__builtin_return_address(0));
> > -	printk("Faulted at %pS\n", (void *)regs->ip);
> > -	printk(" %s%pB\n", (reliable ? "" : "? "), (void *)*stack);
> 
> Did you mean to delete the Examples completely?  Wouldn't it
> be better to just update (s/%pF/%pS/g)?

good question. yes, I think I did it deliberately :) we still
kinda have some sort of "examples", right at the beginning of
section "Symbols/Function Pointers"


>  Symbols/Function Pointers
>  =========================
>
>  ::
>
>         %pS     versatile_init+0x0/0x110
>          %ps     versatile_init
>          %pF     versatile_init+0x0/0x110
>          %pf     versatile_init
>          %pSR    versatile_init+0x9/0x110
>                 (with __builtin_extract_return_addr() translation)
>          %pB     prev_fn_of_versatile_init+0x88/0x88
>
>  The ``S`` and ``s`` specifiers are used for printing a pointer in symbolic
>  format. They result in the symbol name with (``S``) or without (``s``)
>  offsets. If KALLSYMS are disabled then the symbol address is printed instead.
>
>  Note, that the ``F`` and ``f`` specifiers are identical to ``S`` (``s``)
>  and thus deprecated. We have ``F`` and ``f`` because on ia64, ppc64 and
>  parisc64 function pointers are indirect and, in fact, are function
>  descriptors, which require additional dereferencing before we can lookup
>  the symbol. As of now, ``S`` and ``s`` perform dereferencing on those
>  platforms (when needed), so ``F`` and ``f`` exist for compatibility
>  reasons only.
>
>  The ``B`` specifier results in the symbol name with offsets and should be
>  used when printing stack backtraces. The specifier takes into
>  consideration the effect of compiler optimisations which may occur
>  when tail-call``s are used and marked with the noreturn GCC attribute.

I can return Examples back. don't really have a strong opinion
on this. let me know.

	-ss
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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH] parisc: Fix validity check of pointer size argument in new CAS implementation
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As noted by Christoph Biedl, passing a pointer size of 4 in the new CAS =
implementation causes a
kernel crash.  The attached patch corrects the off by one error in the =
argument validity check.

In reviewing the code, I noticed that we only perform word operations =
with the pointer size argument.
The subi instruction intentionally uses a word condition on 64-bit =
kernels.  Nullification was used instead
of a cmpib instruction as the branch should never be taken.  The shlw =
pseudo-operation generates a
depw,z instruction and it clears the target before doing a shift left =
word deposit.  Thus, we don't need to
clip the upper 32 bits of this argument on 64-bit kernels.

Tested with a gcc testsuite run with a 64-bit kernel.  The gcc atomic =
code in libgcc is the only direct user
of the new CAS implementation that I am aware of.

Signed-off-by: John David Anglin <dave.anglin@bell.net>


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diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 41e60a9c7db2..e775f80ae28c 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -690,15 +690,15 @@ cas_action:
 	/* ELF32 Process entry path */
 lws_compare_and_swap_2:
 #ifdef CONFIG_64BIT
-	/* Clip the input registers */
+	/* Clip the input registers. We don't need to clip %r23 as we
+	   only use it for word operations */
 	depdi	0, 31, 32, %r26
 	depdi	0, 31, 32, %r25
 	depdi	0, 31, 32, %r24
-	depdi	0, 31, 32, %r23
 #endif
 
 	/* Check the validity of the size pointer */
-	subi,>>= 4, %r23, %r0
+	subi,>>= 3, %r23, %r0
 	b,n	lws_exit_nosys
 
 	/* Jump to the functions which will load the old and new values into

--Apple-Mail-36--444867575
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--
John David Anglin	dave.anglin@bell.net

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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 12 Nov 2017 10:10:53 +0100

* Adjust jump targets so that a bit of exception handling can be better
  reused at the end of this function.

  This issue was detected by using the Coccinelle software.

* The script "checkpatch.pl" pointed information out like the following.

  ERROR: do not use assignment in if condition

  Thus fix five affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 sound/pci/ad1889.c | 45 +++++++++++++++++++++++++--------------------
 1 file changed, 25 insertions(+), 20 deletions(-)

diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index 0bf2c04eeada..9f00e63937a5 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -894,21 +894,23 @@ snd_ad1889_create(struct snd_card *card,
 
 	*rchip = NULL;
 
-	if ((err = pci_enable_device(pci)) < 0)
+	err = pci_enable_device(pci);
+	if (err < 0)
 		return err;
 
 	/* check PCI availability (32bit DMA) */
 	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0 ||
 	    dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
 		dev_err(card->dev, "error setting 32-bit DMA mask.\n");
-		pci_disable_device(pci);
-		return -ENXIO;
+		err = -ENXIO;
+		goto disable_device;
 	}
 
 	/* allocate chip specific data with zero-filled memory */
-	if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
-		pci_disable_device(pci);
-		return -ENOMEM;
+	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+	if (!chip) {
+		err = -ENOMEM;
+		goto disable_device;
 	}
 
 	chip->card = card;
@@ -917,15 +919,16 @@ snd_ad1889_create(struct snd_card *card,
 	chip->irq = -1;
 
 	/* (1) PCI resource allocation */
-	if ((err = pci_request_regions(pci, card->driver)) < 0)
-		goto free_and_ret;
+	err = pci_request_regions(pci, card->driver);
+	if (err < 0)
+		goto free_data;
 
 	chip->bar = pci_resource_start(pci, 0);
 	chip->iobase = pci_ioremap_bar(pci, 0);
 	if (chip->iobase == NULL) {
 		dev_err(card->dev, "unable to reserve region.\n");
 		err = -EBUSY;
-		goto free_and_ret;
+		goto free_data;
 	}
 	
 	pci_set_master(pci);
@@ -935,32 +938,34 @@ snd_ad1889_create(struct snd_card *card,
 	if (request_irq(pci->irq, snd_ad1889_interrupt,
 			IRQF_SHARED, KBUILD_MODNAME, chip)) {
 		dev_err(card->dev, "cannot obtain IRQ %d\n", pci->irq);
-		snd_ad1889_free(chip);
-		return -EBUSY;
+		err = -EBUSY;
+		goto free_sound_chip;
 	}
 
 	chip->irq = pci->irq;
 	synchronize_irq(chip->irq);
 
 	/* (2) initialization of the chip hardware */
-	if ((err = snd_ad1889_init(chip)) < 0) {
-		snd_ad1889_free(chip);
-		return err;
-	}
+	err = snd_ad1889_init(chip);
+	if (err < 0)
+		goto free_sound_chip;
 
-	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
-		snd_ad1889_free(chip);
-		return err;
-	}
+	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
+	if (err < 0)
+		goto free_sound_chip;
 
 	*rchip = chip;
 
 	return 0;
 
-free_and_ret:
+free_data:
 	kfree(chip);
+disable_device:
 	pci_disable_device(pci);
+	return err;
 
+free_sound_chip:
+	snd_ad1889_free(chip);
 	return err;
 }
 
-- 
2.15.0


From - Thu Nov 08 21:40:33 2018
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From: Santosh Sivaraj <santosh@fossix.org>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCHv4 3/6] powerpc64: Add .opd based function descriptor
 dereference
Date: Mon, 13 Nov 2017 12:41:49 +0530
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Cc: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        James Bottomley <jejb@parisc-linux.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>, Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
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* Sergey Senozhatsky <sergey.senozhatsky@gmail.com> wrote (on 2017-11-10 08:48:27 +0900):

> We are moving towards separate kernel and module function descriptor
> dereference callbacks. This patch enables it for powerpc64.
> 
> For pointers that belong to the kernel
> -  Added __start_opd and __end_opd pointers, to track the kernel
>    .opd section address range;
> 
> -  Added dereference_kernel_function_descriptor(). Now we
>    will dereference only function pointers that are within
>    [__start_opd, __end_opd);
> 
> For pointers that belong to a module
> -  Added dereference_module_function_descriptor() to handle module
>    function descriptor dereference. Now we will dereference only
>    pointers that are within [module->opd.start, module->opd.end).
> 
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
> ---
>  arch/powerpc/include/asm/module.h   |  3 +++
>  arch/powerpc/include/asm/sections.h | 12 ++++++++++++
>  arch/powerpc/kernel/module_64.c     | 14 ++++++++++++++
>  arch/powerpc/kernel/vmlinux.lds.S   |  2 ++
>  4 files changed, 31 insertions(+)
>

Looks good on powerpc. If you wish:

Tested-by: Santosh Sivaraj <santosh@fossix.org> # for powerpc

Thanks,
Santosh

> diff --git a/arch/powerpc/include/asm/module.h b/arch/powerpc/include/asm/module.h
> index 6c0132c7212f..7e28442827f1 100644
> --- a/arch/powerpc/include/asm/module.h
> +++ b/arch/powerpc/include/asm/module.h
> @@ -45,6 +45,9 @@ struct mod_arch_specific {
>  	unsigned long tramp;
>  #endif
>  
> +	/* For module function descriptor dereference */
> +	unsigned long start_opd;
> +	unsigned long end_opd;
>  #else /* powerpc64 */
>  	/* Indices of PLT sections within module. */
>  	unsigned int core_plt_section;
> diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
> index 82bec63bbd4f..e335a8f846af 100644
> --- a/arch/powerpc/include/asm/sections.h
> +++ b/arch/powerpc/include/asm/sections.h
> @@ -66,6 +66,9 @@ static inline int overlaps_kvm_tmp(unsigned long start, unsigned long end)
>  }
>  
>  #ifdef PPC64_ELF_ABI_v1
> +
> +#define HAVE_DEREFERENCE_FUNCTION_DESCRIPTOR 1
> +
>  #undef dereference_function_descriptor
>  static inline void *dereference_function_descriptor(void *ptr)
>  {
> @@ -76,6 +79,15 @@ static inline void *dereference_function_descriptor(void *ptr)
>  		ptr = p;
>  	return ptr;
>  }
> +
> +#undef dereference_kernel_function_descriptor
> +static inline void *dereference_kernel_function_descriptor(void *ptr)
> +{
> +	if (ptr < (void *)__start_opd || ptr >= (void *)__end_opd)
> +		return ptr;
> +
> +	return dereference_function_descriptor(ptr);
> +}
>  #endif /* PPC64_ELF_ABI_v1 */
>  
>  #endif
> diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
> index 759104b99f9f..218971ac7e04 100644
> --- a/arch/powerpc/kernel/module_64.c
> +++ b/arch/powerpc/kernel/module_64.c
> @@ -93,6 +93,15 @@ static unsigned int local_entry_offset(const Elf64_Sym *sym)
>  {
>  	return 0;
>  }
> +
> +void *dereference_module_function_descriptor(struct module *mod, void *ptr)
> +{
> +	if (ptr < (void *)mod->arch.start_opd ||
> +			ptr >= (void *)mod->arch.end_opd)
> +		return ptr;
> +
> +	return dereference_function_descriptor(ptr);
> +}
>  #endif
>  
>  #define STUB_MAGIC 0x73747562 /* stub */
> @@ -344,6 +353,11 @@ int module_frob_arch_sections(Elf64_Ehdr *hdr,
>  		else if (strcmp(secstrings+sechdrs[i].sh_name,"__versions")==0)
>  			dedotify_versions((void *)hdr + sechdrs[i].sh_offset,
>  					  sechdrs[i].sh_size);
> +		else if (!strcmp(secstrings + sechdrs[i].sh_name, ".opd")) {
> +			me->arch.start_opd = sechdrs[i].sh_addr;
> +			me->arch.end_opd = sechdrs[i].sh_addr +
> +					   sechdrs[i].sh_size;
> +		}
>  
>  		/* We don't handle .init for the moment: rename to _init */
>  		while ((p = strstr(secstrings + sechdrs[i].sh_name, ".init")))
> diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
> index 0494e1566ee2..5dac5ab22fa2 100644
> --- a/arch/powerpc/kernel/vmlinux.lds.S
> +++ b/arch/powerpc/kernel/vmlinux.lds.S
> @@ -278,7 +278,9 @@ SECTIONS
>  	}
>  
>  	.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
> +		__start_opd = .;
>  		*(.opd)
> +		__end_opd = .;
>  	}
>  
>  	. = ALIGN(256);

-- 
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From - Thu Nov 08 21:40:33 2018
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From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCHv4 3/6] powerpc64: Add .opd based function descriptor
 dereference
Date: Mon, 13 Nov 2017 18:35:27 +0900
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Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
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To: Santosh Sivaraj <santosh@fossix.org>
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On (11/13/17 12:41), Santosh Sivaraj wrote:
> * Sergey Senozhatsky <sergey.senozhatsky@gmail.com> wrote (on 2017-11-10 08:48:27 +0900):
> 
> > We are moving towards separate kernel and module function descriptor
> > dereference callbacks. This patch enables it for powerpc64.
> > 
> > For pointers that belong to the kernel
> > -  Added __start_opd and __end_opd pointers, to track the kernel
> >    .opd section address range;
> > 
> > -  Added dereference_kernel_function_descriptor(). Now we
> >    will dereference only function pointers that are within
> >    [__start_opd, __end_opd);
> > 
> > For pointers that belong to a module
> > -  Added dereference_module_function_descriptor() to handle module
> >    function descriptor dereference. Now we will dereference only
> >    pointers that are within [module->opd.start, module->opd.end).
> > 
> > Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
> > ---
> >  arch/powerpc/include/asm/module.h   |  3 +++
> >  arch/powerpc/include/asm/sections.h | 12 ++++++++++++
> >  arch/powerpc/kernel/module_64.c     | 14 ++++++++++++++
> >  arch/powerpc/kernel/vmlinux.lds.S   |  2 ++
> >  4 files changed, 31 insertions(+)
> >
> 
> Looks good on powerpc. If you wish:
> 
> Tested-by: Santosh Sivaraj <santosh@fossix.org> # for powerpc

thanks!

	-ss
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Subject: Re: linux-next: Tree for Nov 7
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To: Joel Stanley <joel@jms.id.au>
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On Mon 13-11-17 10:20:06, Michal Hocko wrote:
> [Cc arm and ppc maintainers]

Hmm, it turned out to be a problem on other architectures as well.
CCing more maintainers. For your reference, we are talking about
http://lkml.kernel.org/r/20171023082608.6167-1-mhocko@kernel.org
which has broken architectures which do apply aligning on the mmap
address hint without MAP_FIXED applied. See below my proposed way
around this issue because I belive that the above patch is quite
valuable on its own to be dropped for all archs.

> Thanks a lot for testing!
> 
> On Sun 12-11-17 11:38:02, Joel Stanley wrote:
> > On Fri, Nov 10, 2017 at 11:00 PM, Michal Hocko <mhocko@kernel.org> wrote:
> > > Hi Joel,
> > >
> > > On Wed 08-11-17 15:20:50, Michal Hocko wrote:
> > > [...]
> > >> > There are a lot of messages on the way up that look like this:
> > >> >
> > >> > [    2.527460] Uhuuh, elf segement at 000d9000 requested but the
> > >> > memory is mapped already
> > >> > [    2.540160] Uhuuh, elf segement at 000d9000 requested but the
> > >> > memory is mapped already
> > >> > [    2.546153] Uhuuh, elf segement at 000d9000 requested but the
> > >> > memory is mapped already
> > >> >
> > >> > And then trying to run userspace looks like this:
> > >>
> > >> Could you please run with debugging patch posted
> > >> http://lkml.kernel.org/r/20171107102854.vylrtaodla63kc57@dhcp22.suse.cz
> > >
> > > Did you have chance to test with this debugging patch, please?
> > 
> > Lots of this:
> > 
> > [    1.177266] Uhuuh, elf segement at 000d9000 requested but the  memory is mapped already, got 000dd000
> > [    1.177555] Clashing vma [dd000, de000] flags:100873 name:(null)
> 
> This smells like the problem I've expected that mmap with hint doesn't
> respect the hint even though there is no clashing mapping. The above
> basically says that we didn't map at 0xd9000 but it has placed it at
> 0xdd000. The nearest (clashing) vma is at 0xdd000 so this is our new
> mapping. find_vma returns the closest vma (with addr < vm_end) for the
> given address 0xd9000 so this address cannot be mapped by any other vma.
> 
> Now that I am looking at arm's arch_get_unmapped_area it does perform
> aligning for shared vmas. We do not do that for MAP_FIXED.  Powepc,
> reported earlier [1] seems to suffer from the similar problem.
> slice_get_unmapped_area alignes to slices, whatever that means.
> 
> I can see two possible ways around that. Either we explicitly request
> non-aligned mappings via a special MAP_$FOO (e.g. MAP_FIXED_SAFE) or
> simply opt out from the MAP_FIXED protection via ifdefs. The first
> option sounds more generic to me but also more tricky to not introduce
> other user visible effects. The later is quite straightforward. What do
> you think about the following on top of the previous patch?
> 
> It is rather terse and disables the MAP_FIXED protection for arm
> comletely because I couldn't find a way to make it conditional on
> CACHEID_VIPT_ALIASING. But this can be always handled later. I find the
> protection for other archtectures useful enough to have this working for
> most architectures now and handle others specially.
> 
> [1] http://lkml.kernel.org/r/1510048229.12079.7.camel@abdul.in.ibm.com
> ---
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 61a0cb15067e..018d041a30e6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -99,6 +99,7 @@ config ARM
 	select PERF_USE_VMALLOC
 	select RTC_LIB
 	select SYS_SUPPORTS_APM_EMULATION
+	select ARCH_ALIGNED_MMAPS
 	# Above selects are sorted alphabetically; please add new ones
 	# according to that.  Thanks.
 	help
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 48d91d5be4e9..eca59d27e9f1 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -72,6 +72,7 @@ config MIPS
 	select RTC_LIB if !MACH_LOONGSON64
 	select SYSCTL_EXCEPTION_TRACE
 	select VIRT_TO_BUS
+	select ARCH_ALIGNED_MMAPS
 
 menu "Machine selection"
 
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 22f27ec8c117..8376d16e0a4a 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -40,6 +40,7 @@ config PARISC
 	select GENERIC_CLOCKEVENTS
 	select ARCH_NO_COHERENT_DMA_MMAP
 	select CPU_NO_EFFICIENT_FFS
+	select ARCH_ALIGNED_MMAPS
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 2f629e0551e9..156f69c09c7f 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -368,6 +368,7 @@ config PPC_MM_SLICES
 	bool
 	default y if PPC_STD_MMU_64
 	default n
+	select ARCH_ALIGNED_MMAPS
 
 config PPC_HAVE_PMU_SUPPORT
        bool
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 640a85925060..ac1d4637a728 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -49,6 +49,7 @@ config SUPERH
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select HAVE_NMI
+	select ARCH_ALIGNED_MMAPS
 	help
 	  The SuperH is a RISC processor targeted for use in embedded systems
 	  and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 0be3828752e5..c265dcda3d28 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -45,6 +45,7 @@ config SPARC
 	select CPU_NO_EFFICIENT_FFS
 	select LOCKDEP_SMALL if LOCKDEP
 	select ARCH_WANT_RELAX_ORDER
+	select ARCH_ALIGNED_MMAPS if SPARC64
 
 config SPARC32
 	def_bool !64BIT
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 7ad6d77b2f22..a5cf535034d1 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -30,6 +30,7 @@ config XTENSA
 	select NO_BOOTMEM
 	select PERF_USE_VMALLOC
 	select VIRT_TO_BUS
+	select ARCH_ALIGNED_MMAPS if MMU
 	help
 	  Xtensa processors are 32-bit RISC machines designed by Tensilica
 	  primarily for embedded systems.  These processors are both
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index a22718de42db..d23eb89f31c0 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -345,13 +345,19 @@ static unsigned long elf_vm_mmap(struct file *filep, unsigned long addr,
 		unsigned long size, int prot, int type, unsigned long off)
 {
 	unsigned long map_addr;
+	unsigned long map_type = type;
 
 	/*
 	 * If caller requests the mapping at a specific place, make sure we fail
 	 * rather than potentially clobber an existing mapping which can have
-	 * security consequences (e.g. smash over the stack area).
+	 * security consequences (e.g. smash over the stack area). Be careful
+	 * about architectures which do not respect the address hint due to
+	 * aligning restrictions for !fixed mappings.
 	 */
-	map_addr = vm_mmap(filep, addr, size, prot, type & ~MAP_FIXED, off);
+	if (!IS_ENABLED(ARCH_ALIGNED_MMAPS))
+		map_type &= ~MAP_FIXED;
+
+	map_addr = vm_mmap(filep, addr, size, prot, map_type, off);
 	if (BAD_ADDR(map_addr))
 		return map_addr;
 
-- 
Michal Hocko
SUSE Labs
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From - Thu Nov 08 21:40:33 2018
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Subject: Re: linux-next: Tree for Nov 7
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Hi Michal,

Michal Hocko <mhocko@kernel.org> writes:
> On Mon 13-11-17 10:20:06, Michal Hocko wrote:
>> [Cc arm and ppc maintainers]
>
> Hmm, it turned out to be a problem on other architectures as well.
> CCing more maintainers. For your reference, we are talking about
> http://lkml.kernel.org/r/20171023082608.6167-1-mhocko@kernel.org
> which has broken architectures which do apply aligning on the mmap
> address hint without MAP_FIXED applied. See below my proposed way
> around this issue because I belive that the above patch is quite
> valuable on its own to be dropped for all archs.

I don't really like your solution sorry :)  The fact that you've had to
patch seven arches seems like a red flag.

I think this is a generic problem with MAP_FIXED, which I've heard
userspace folks complain about in the past.

Currently MAP_FIXED does two things:
  1. makes addr not a hint but the required address
  2. blasts any existing mapping

You want 1) but not 2).

So the right solution IMHO would be to add a new mmap flag to request
that behaviour, ie. a fixed address but iff there is nothing already
mapped there.

I don't know the mm code well enough to know if that's hard for some
reason, but it *seems* like it should be doable.

cheers
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Subject: Re: linux-next: Tree for Nov 7
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To: Michael Ellerman <mpe@ellerman.id.au>
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On Mon 13-11-17 22:34:50, Michael Ellerman wrote:
> Hi Michal,
> 
> Michal Hocko <mhocko@kernel.org> writes:
> > On Mon 13-11-17 10:20:06, Michal Hocko wrote:
> >> [Cc arm and ppc maintainers]
> >
> > Hmm, it turned out to be a problem on other architectures as well.
> > CCing more maintainers. For your reference, we are talking about
> > http://lkml.kernel.org/r/20171023082608.6167-1-mhocko@kernel.org
> > which has broken architectures which do apply aligning on the mmap
> > address hint without MAP_FIXED applied. See below my proposed way
> > around this issue because I belive that the above patch is quite
> > valuable on its own to be dropped for all archs.
> 
> I don't really like your solution sorry :)  The fact that you've had to
> patch seven arches seems like a red flag.
> 
> I think this is a generic problem with MAP_FIXED, which I've heard
> userspace folks complain about in the past.

The thing is that we canno  change MAP_FIXED behavior as it is carved in
stone

> Currently MAP_FIXED does two things:
>   1. makes addr not a hint but the required address
>   2. blasts any existing mapping
> 
> You want 1) but not 2).

+ fail if there is a clashing range

> So the right solution IMHO would be to add a new mmap flag to request
> that behaviour, ie. a fixed address but iff there is nothing already
> mapped there.
> 
> I don't know the mm code well enough to know if that's hard for some
> reason, but it *seems* like it should be doable.

Yes, I have mentioned that in the previous email but the amount of code
would be even larger. Basically every arch which reimplements
arch_get_unmapped_area would have to special case new MAP_FIXED flag to
do vma lookup. So this was the most simple solution I could come up
with. If there was a general interest for MAP_FIXED_SAFE then we can
introduce it later of course. I would just like the hardening merged
sooner rather than later.
-- 
Michal Hocko
SUSE Labs


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Attn:

I am wondering why You haven't respond to my email for some days now.
reference to my client's contract balance payment of (11.7M,USD)
Kindly get back to me for more details.

Best Regards

Amos Kalonzo
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Subject: Re: linux-next: Tree for Nov 7
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To: Michael Ellerman <mpe@ellerman.id.au>
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On Mon 13-11-17 13:00:57, Michal Hocko wrote:
[...]
> Yes, I have mentioned that in the previous email but the amount of code
> would be even larger. Basically every arch which reimplements
> arch_get_unmapped_area would have to special case new MAP_FIXED flag to
> do vma lookup.

It turned out that this might be much more easier than I thought after
all. It seems we can really handle that in the common code. This would
mean that we are exposing a new functionality to the userspace though.
Myabe this would be useful on its own though. Just a quick draft (not
even compile tested) whether this makes sense in general. I would be
worried about unexpected behavior when somebody set other bit without a
good reason and we might fail with ENOMEM for such a call now.

Elf loader would then use MAP_FIXED_SAFE rather than MAP_FIXED.
---
diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 3b26cc62dadb..d021c21f9b01 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -31,6 +31,9 @@
 #define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
 
+#define MAP_KEEP_MAPPING 0x2000000
+#define MAP_FIXED_SAFE	MAP_FIXED|MAP_KEEP_MAPPING /* enforce MAP_FIXED without clobbering an existing mapping */
+
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_SYNC		2		/* synchronous memory sync */
 #define MS_INVALIDATE	4		/* invalidate the caches */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index da3216007fe0..51e3885fbfc1 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -49,6 +49,9 @@
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
 
+#define MAP_KEEP_MAPPING 0x2000000
+#define MAP_FIXED_SAFE	MAP_FIXED|MAP_KEEP_MAPPING /* enforce MAP_FIXED without clobbering an existing mapping */
+
 /*
  * Flags for msync
  */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index cc9ba1d34779..5a4381484fc5 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -25,6 +25,9 @@
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
 
+#define MAP_KEEP_MAPPING 0x2000000
+#define MAP_FIXED_SAFE	MAP_FIXED|MAP_KEEP_MAPPING /* enforce MAP_FIXED without clobbering an existing mapping */
+
 #define MS_SYNC		1		/* synchronous memory sync */
 #define MS_ASYNC	2		/* sync memory asynchronously */
 #define MS_INVALIDATE	4		/* invalidate the caches */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index b15b278aa314..5df8a81524da 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -62,6 +62,9 @@
 # define MAP_UNINITIALIZED 0x0		/* Don't support this flag */
 #endif
 
+#define MAP_KEEP_MAPPING 0x2000000
+#define MAP_FIXED_SAFE	MAP_FIXED|MAP_KEEP_MAPPING /* enforce MAP_FIXED without clobbering an existing mapping */
+
 /*
  * Flags for msync
  */
diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h
index 203268f9231e..22442846f5c8 100644
--- a/include/uapi/asm-generic/mman-common.h
+++ b/include/uapi/asm-generic/mman-common.h
@@ -25,6 +25,9 @@
 # define MAP_UNINITIALIZED 0x0		/* Don't support this flag */
 #endif
 
+#define MAP_KEEP_MAPPING 0x2000000
+#define MAP_FIXED_SAFE	MAP_FIXED|MAP_KEEP_MAPPING /* enforce MAP_FIXED without clobbering an existing mapping */
+
 /*
  * Flags for mlock
  */
diff --git a/mm/mmap.c b/mm/mmap.c
index 680506faceae..e53b6b15a8d9 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1365,6 +1365,13 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
 	if (offset_in_page(addr))
 		return addr;
 
+	if ((flags & MAP_FIXED_SAFE) == MAP_FIXED_SAFE) {
+		struct vm_area_struct *vma = find_vma(mm, addr);
+
+		if (vma && vma->vm_start <= addr)
+			return -ENOMEM;
+	}
+
 	if (prot == PROT_EXEC) {
 		pkey = execute_only_pkey(mm);
 		if (pkey < 0)
-- 
Michal Hocko
SUSE Labs
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To: Michal Hocko <mhocko@kernel.org>
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On Mon, Nov 13, 2017 at 04:16:41PM +0100, Michal Hocko wrote:
> On Mon 13-11-17 13:00:57, Michal Hocko wrote:
> [...]
> > Yes, I have mentioned that in the previous email but the amount of code
> > would be even larger. Basically every arch which reimplements
> > arch_get_unmapped_area would have to special case new MAP_FIXED flag to
> > do vma lookup.
> 
> It turned out that this might be much more easier than I thought after
> all. It seems we can really handle that in the common code. This would
> mean that we are exposing a new functionality to the userspace though.
> Myabe this would be useful on its own though. Just a quick draft (not
> even compile tested) whether this makes sense in general. I would be
> worried about unexpected behavior when somebody set other bit without a
> good reason and we might fail with ENOMEM for such a call now.
> 
> Elf loader would then use MAP_FIXED_SAFE rather than MAP_FIXED.
> ---
> diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
> index 3b26cc62dadb..d021c21f9b01 100644
> --- a/arch/alpha/include/uapi/asm/mman.h
> +++ b/arch/alpha/include/uapi/asm/mman.h
> @@ -31,6 +31,9 @@
>  #define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
>  #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
>  
> +#define MAP_KEEP_MAPPING 0x2000000
> +#define MAP_FIXED_SAFE	MAP_FIXED|MAP_KEEP_MAPPING /* enforce MAP_FIXED without clobbering an existing mapping */

A few things...

1. Does this need to be exposed to userland?
2. Can it end up in include/uapi/asm-generic/mman*.h ?
3. The definition of MAP_FIXED_SAFE should really have parens around it.

> @@ -1365,6 +1365,13 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
>  	if (offset_in_page(addr))
>  		return addr;
>  
> +	if ((flags & MAP_FIXED_SAFE) == MAP_FIXED_SAFE) {

I'm surprised this doesn't warn - since this effectively expands to:

	flags & MAP_FIXED | MAP_KEEP_MAPPING

hence why MAP_FIXED_SAFE needs parens.

-- 
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From - Thu Nov 08 21:40:34 2018
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Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.next,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel
Subject: Re: linux-next: Tree for Nov 7
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On Mon 13-11-17 16:16:41, Michal Hocko wrote:
> On Mon 13-11-17 13:00:57, Michal Hocko wrote:
> [...]
> > Yes, I have mentioned that in the previous email but the amount of code
> > would be even larger. Basically every arch which reimplements
> > arch_get_unmapped_area would have to special case new MAP_FIXED flag to
> > do vma lookup.
> 
> It turned out that this might be much more easier than I thought after
> all. It seems we can really handle that in the common code. This would
> mean that we are exposing a new functionality to the userspace though.
> Myabe this would be useful on its own though. Just a quick draft (not
> even compile tested) whether this makes sense in general. I would be
> worried about unexpected behavior when somebody set other bit without a
> good reason and we might fail with ENOMEM for such a call now.

Hmm, the bigger problem would be the backward compatibility actually. We
would get silent corruptions which is exactly what the flag is trying
fix. mmap flags handling really sucks. So I guess we would have to make
the flag internal only :/

-- 
Michal Hocko
SUSE Labs
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From - Thu Nov 08 21:40:34 2018
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Subject: Re: linux-next: Tree for Nov 7
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To: Russell King - ARM Linux <linux@armlinux.org.uk>
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On Mon 13-11-17 15:48:13, Russell King - ARM Linux wrote:
> On Mon, Nov 13, 2017 at 04:16:41PM +0100, Michal Hocko wrote:
> > On Mon 13-11-17 13:00:57, Michal Hocko wrote:
> > [...]
> > > Yes, I have mentioned that in the previous email but the amount of code
> > > would be even larger. Basically every arch which reimplements
> > > arch_get_unmapped_area would have to special case new MAP_FIXED flag to
> > > do vma lookup.
> > 
> > It turned out that this might be much more easier than I thought after
> > all. It seems we can really handle that in the common code. This would
> > mean that we are exposing a new functionality to the userspace though.
> > Myabe this would be useful on its own though. Just a quick draft (not
> > even compile tested) whether this makes sense in general. I would be
> > worried about unexpected behavior when somebody set other bit without a
> > good reason and we might fail with ENOMEM for such a call now.
> > 
> > Elf loader would then use MAP_FIXED_SAFE rather than MAP_FIXED.
> > ---
> > diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
> > index 3b26cc62dadb..d021c21f9b01 100644
> > --- a/arch/alpha/include/uapi/asm/mman.h
> > +++ b/arch/alpha/include/uapi/asm/mman.h
> > @@ -31,6 +31,9 @@
> >  #define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
> >  #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
> >  
> > +#define MAP_KEEP_MAPPING 0x2000000
> > +#define MAP_FIXED_SAFE	MAP_FIXED|MAP_KEEP_MAPPING /* enforce MAP_FIXED without clobbering an existing mapping */
> 
> A few things...
> 
> 1. Does this need to be exposed to userland?

As I've written in another email, exposing the flag this way would be
really dangerous wrt. backward compatibility. So we would either need some
translation or make it a flag on its own and touch the arch specific
code which I really wanted to prevent from.

Whether this is something useful for the userspace is a separate
question which I should bring up to linux-api for a wider audience to
discuss.

So I guess this goes down to whether we want/need something like
MAP_FIXED_SAFE or opt out the specific hardening code for arches that
cannot make unaligned mappings for the requested address.

> 2. Can it end up in include/uapi/asm-generic/mman*.h ?
> 3. The definition of MAP_FIXED_SAFE should really have parens around it.

Of course. I thought I did...

> > @@ -1365,6 +1365,13 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
> >  	if (offset_in_page(addr))
> >  		return addr;
> >  
> > +	if ((flags & MAP_FIXED_SAFE) == MAP_FIXED_SAFE) {
> 
> I'm surprised this doesn't warn - since this effectively expands to:
> 
> 	flags & MAP_FIXED | MAP_KEEP_MAPPING
> 
> hence why MAP_FIXED_SAFE needs parens.

It sure does.

Thanks!
-- 
Michal Hocko
SUSE Labs

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Subject: Re: linux-next: Tree for Nov 7
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[Sorry for spamming, this one is the last attempt hopefully]

On Mon 13-11-17 16:49:39, Michal Hocko wrote:
> On Mon 13-11-17 16:16:41, Michal Hocko wrote:
> > On Mon 13-11-17 13:00:57, Michal Hocko wrote:
> > [...]
> > > Yes, I have mentioned that in the previous email but the amount of code
> > > would be even larger. Basically every arch which reimplements
> > > arch_get_unmapped_area would have to special case new MAP_FIXED flag to
> > > do vma lookup.
> > 
> > It turned out that this might be much more easier than I thought after
> > all. It seems we can really handle that in the common code. This would
> > mean that we are exposing a new functionality to the userspace though.
> > Myabe this would be useful on its own though. Just a quick draft (not
> > even compile tested) whether this makes sense in general. I would be
> > worried about unexpected behavior when somebody set other bit without a
> > good reason and we might fail with ENOMEM for such a call now.
> 
> Hmm, the bigger problem would be the backward compatibility actually. We
> would get silent corruptions which is exactly what the flag is trying
> fix. mmap flags handling really sucks. So I guess we would have to make
> the flag internal only :/

OK, so this one should take care of the backward compatibility while
still not touching the arch code
---
commit 39ff9bf8597e79a032da0954aea1f0d77d137765
Author: Michal Hocko <mhocko@suse.com>
Date:   Mon Nov 13 17:06:24 2017 +0100

    mm: introduce MAP_FIXED_SAFE
    
    MAP_FIXED is used quite often but it is inherently dangerous because it
    unmaps an existing mapping covered by the requested range. While this
    might be might be really desidered behavior in many cases there are
    others which would rather see a failure than a silent memory corruption.
    Introduce a new MAP_FIXED_SAFE flag for mmap to achive this behavior.
    It is a MAP_FIXED extension with a single exception that it fails with
    ENOMEM if the requested address is already covered by an existing
    mapping. We still do rely on get_unmaped_area to handle all the arch
    specific MAP_FIXED treatment and check for a conflicting vma after it
    returns.
    
    Signed-off-by: Michal Hocko <mhocko@suse.com>

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 3b26cc62dadb..767bcb8a4c28 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -31,6 +31,8 @@
 #define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
 
+#define MAP_FIXED_SAFE 0x2000000	/* MAP_FIXED which doesn't unmap underlying mapping */
+
 #define MS_ASYNC	1		/* sync memory asynchronously */
 #define MS_SYNC		2		/* synchronous memory sync */
 #define MS_INVALIDATE	4		/* invalidate the caches */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index da3216007fe0..c2311eb7219b 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -49,6 +49,8 @@
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
 
+#define MAP_FIXED_SAFE 0x2000000	/* MAP_FIXED which doesn't unmap underlying mapping */
+
 /*
  * Flags for msync
  */
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index cc9ba1d34779..b06fd830bc6f 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -25,6 +25,8 @@
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
 
+#define MAP_FIXED_SAFE 0x2000000	/* MAP_FIXED which doesn't unmap underlying mapping */
+
 #define MS_SYNC		1		/* synchronous memory sync */
 #define MS_ASYNC	2		/* sync memory asynchronously */
 #define MS_INVALIDATE	4		/* invalidate the caches */
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index b15b278aa314..f4b291bca764 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -62,6 +62,8 @@
 # define MAP_UNINITIALIZED 0x0		/* Don't support this flag */
 #endif
 
+#define MAP_FIXED_SAFE 0x2000000	/* MAP_FIXED which doesn't unmap underlying mapping */
+
 /*
  * Flags for msync
  */
diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h
index 203268f9231e..03c518777f83 100644
--- a/include/uapi/asm-generic/mman-common.h
+++ b/include/uapi/asm-generic/mman-common.h
@@ -25,6 +25,8 @@
 # define MAP_UNINITIALIZED 0x0		/* Don't support this flag */
 #endif
 
+#define MAP_FIXED_SAFE 0x2000000	/* MAP_FIXED which doesn't unmap underlying mapping */
+
 /*
  * Flags for mlock
  */
diff --git a/mm/mmap.c b/mm/mmap.c
index 680506faceae..aad8d37f0205 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1358,6 +1358,10 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
 	if (mm->map_count > sysctl_max_map_count)
 		return -ENOMEM;
 
+	/* force arch specific MAP_FIXED handling in get_unmapped_area */
+	if (flags & MAP_FIXED_SAFE)
+		flags |= MAP_FIXED;
+
 	/* Obtain the address to map to. we verify (or select) it and ensure
 	 * that it represents a valid section of the address space.
 	 */
@@ -1365,6 +1369,13 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
 	if (offset_in_page(addr))
 		return addr;
 
+	if (flags & MAP_FIXED_SAFE) {
+		struct vm_area_struct *vma = find_vma(mm, addr);
+
+		if (vma && vma->vm_start <= addr)
+			return -ENOMEM;
+	}
+
 	if (prot == PROT_EXEC) {
 		pkey = execute_only_pkey(mm);
 		if (pkey < 0)

-- 
Michal Hocko
SUSE Labs
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On 11/13/2017 09:06 AM, Michal Hocko wrote:
> OK, so this one should take care of the backward compatibility while
> still not touching the arch code
> ---
> commit 39ff9bf8597e79a032da0954aea1f0d77d137765
> Author: Michal Hocko <mhocko@suse.com>
> Date:   Mon Nov 13 17:06:24 2017 +0100
> 
>      mm: introduce MAP_FIXED_SAFE
>      
>      MAP_FIXED is used quite often but it is inherently dangerous because it
>      unmaps an existing mapping covered by the requested range. While this
>      might be might be really desidered behavior in many cases there are
>      others which would rather see a failure than a silent memory corruption.
>      Introduce a new MAP_FIXED_SAFE flag for mmap to achive this behavior.
>      It is a MAP_FIXED extension with a single exception that it fails with
>      ENOMEM if the requested address is already covered by an existing
>      mapping. We still do rely on get_unmaped_area to handle all the arch
>      specific MAP_FIXED treatment and check for a conflicting vma after it
>      returns.
>      
>      Signed-off-by: Michal Hocko <mhocko@suse.com>
> 
> ...... deleted .......
> diff --git a/mm/mmap.c b/mm/mmap.c
> index 680506faceae..aad8d37f0205 100644
> --- a/mm/mmap.c
> +++ b/mm/mmap.c
> @@ -1358,6 +1358,10 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
>   	if (mm->map_count > sysctl_max_map_count)
>   		return -ENOMEM;
>   
> +	/* force arch specific MAP_FIXED handling in get_unmapped_area */
> +	if (flags & MAP_FIXED_SAFE)
> +		flags |= MAP_FIXED;
> +
>   	/* Obtain the address to map to. we verify (or select) it and ensure
>   	 * that it represents a valid section of the address space.
>   	 */

Do you need to move this code above:

         if (!(flags & MAP_FIXED))
                 addr = round_hint_to_min(addr);

         /* Careful about overflows.. */
         len = PAGE_ALIGN(len);
         if (!len)
                 return -ENOMEM;

Not doing that might mean the hint address will end up being rounded for 
MAP_FIXED_SAFE which would change the behavior from MAP_FIXED.

--
Khalid



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Subject: Re: [PATCHv4 0/6] printk/ia64/ppc64/parisc64: let's deprecate %pF/%pf
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/27982>

On 10.11.2017 00:48, Sergey Senozhatsky wrote:
> 	All Ack-s/Tested-by-s were dropped, since the patch set has been
> reworked. I'm kindly asking arch-s maintainers and developers to test it
> once again. Sorry for any inconveniences and thanks for your help in
> advance.

I tested it successfully on parisc64.
You can add back the
Tested-by: Helge Deller <deller@gmx.de> #parisc64

Thanks!
Helge
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From - Thu Nov 08 21:40:34 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Reduce probability of stack overflow
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Even with a 32 kB thread stack, I have seen instances where the thread =
stack overflowed on the mx3210 buildd.
Detection of stack overflow only occurs when we have an external =
interrupt.  When an external interrupt occurs,
we switch to the thread stack if we are not already on a kernel stack.  =
Then, registers and specials are saved to
the kernel stack.

The bug occurs in intr_return where interrupts are reenabled prior to =
returning from the interrupt.  This was done
incase we need to schedule or deliver signals.  However, it introduces =
the possibility that multiple external interrupts
may occur on the thread stack and cause a stack overflow.  These might =
not be detected and cause the kernel to
misbehave in random ways.

This patch changes the code to only reenable interrupts when we are =
going to schedule or deliver signals.  As a
result, we generally return from an interrupt before reenabling =
interrupts.  This minimizes the growth of the thread
stack.

This patch conflicts with the patch proposed by Helge here:
https://patchwork.kernel.org/patch/9970169/

In testing, I found that the thread stack can be 16 kB  when using an =
irq stack .  Without it, the thread stack needs
to be 32 kB.  Currently, the irq stack is 32 kB.  While it probably =
could be 16 kB, I would prefer to leave it as is for
safety.

Signed-off-by: John David Anglin <dave.anglin@bell.net>



--Apple-Mail-46--263411265
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diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index bc208136bbb2..a960a5e9cfb5 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -34,7 +34,12 @@ struct thread_info {
 
 /* thread information allocation */
 
+#ifdef CONFIG_IRQSTACKS
+#define THREAD_SIZE_ORDER	2 /* PA-RISC requires at least 16k stack */
+#else
 #define THREAD_SIZE_ORDER	3 /* PA-RISC requires at least 32k stack */
+#endif
+
 /* Be sure to hunt all references to this down when you change the size of
  * the kernel stack */
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_SIZE_ORDER)
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index a4fd296c958e..0d1603eb1f9f 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -878,9 +878,6 @@ ENTRY_CFI(syscall_exit_rfi)
 	STREG   %r19,PT_SR7(%r16)
 
 intr_return:
-	/* NOTE: Need to enable interrupts incase we schedule. */
-	ssm     PSW_SM_I, %r0
-
 	/* check for reschedule */
 	mfctl   %cr30,%r1
 	LDREG   TI_FLAGS(%r1),%r19	/* sched.h: TIF_NEED_RESCHED */
@@ -912,6 +909,7 @@ intr_check_sig:
 	ldo	-16(%r30),%r29			/* Reference param save area */
 #endif
 
+	ssm     PSW_SM_I, %r0
 	BL	do_notify_resume,%r2
 	copy	%r16, %r26			/* struct pt_regs *regs */
 
@@ -963,6 +961,7 @@ intr_do_resched:
 #endif
 
 	ldil	L%intr_check_sig, %r2
+	ssm     PSW_SM_I, %r0
 #ifndef CONFIG_64BIT
 	b	schedule
 #else

--Apple-Mail-46--263411265
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--
John David Anglin	dave.anglin@bell.net

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Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Tony Luck <tony.luck@intel.com>,
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        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
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On (11/13/17 18:17), Helge Deller wrote:
> On 10.11.2017 00:48, Sergey Senozhatsky wrote:
> > 	All Ack-s/Tested-by-s were dropped, since the patch set has been
> > reworked. I'm kindly asking arch-s maintainers and developers to test it
> > once again. Sorry for any inconveniences and thanks for your help in
> > advance.
> 
> I tested it successfully on parisc64.
> You can add back the
> Tested-by: Helge Deller <deller@gmx.de> #parisc64

thanks!

	-ss
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From: Stephen Rothwell <sfr@canb.auug.org.au>
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Subject: linux-next: manual merge of the nvdimm tree with the parisc-hd tree
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Hi Dan,

Today's linux-next merge of the nvdimm tree got a conflict in:

  arch/parisc/include/uapi/asm/mman.h

between commit:

  48cd4dc8f57f ("parisc: Convert MAP_TYPE to cover 4 bits on parisc")

from the parisc-hd tree and commit:

  1c9725974074 ("mm: introduce MAP_SHARED_VALIDATE, a mechanism to safely define new mmap flag")

from the nvdimm tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc arch/parisc/include/uapi/asm/mman.h
index 9a39035986cc,bca652aa1677..000000000000
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@@ -12,11 -11,10 +12,12 @@@
  
  #define MAP_SHARED	0x01		/* Share changes */
  #define MAP_PRIVATE	0x02		/* Changes are private */
+ #define MAP_SHARED_VALIDATE 0x03	/* share + validate extension flags */
 -#define MAP_TYPE	0x03		/* Mask for type of mapping */
 +#define MAP_TYPE	(MAP_SHARED|MAP_PRIVATE|MAP_RESRVD1|MAP_RESRVD2) /* Mask for type of mapping */
  #define MAP_FIXED	0x04		/* Interpret addr exactly */
 +#define MAP_RESRVD1	0x08		/* reserved for 3rd bit of MAP_TYPE */
  #define MAP_ANONYMOUS	0x10		/* don't use a file */
 +#define MAP_RESRVD2	0x20		/* reserved for 4th bit of MAP_TYPE */
  
  #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
  #define MAP_EXECUTABLE	0x1000		/* mark it as an executable */

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From: Michal Hocko <mhocko@kernel.org>
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Subject: Re: linux-next: Tree for Nov 7
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On Mon 13-11-17 09:35:22, Khalid Aziz wrote:
> On 11/13/2017 09:06 AM, Michal Hocko wrote:
> > OK, so this one should take care of the backward compatibility while
> > still not touching the arch code
> > ---
> > commit 39ff9bf8597e79a032da0954aea1f0d77d137765
> > Author: Michal Hocko <mhocko@suse.com>
> > Date:   Mon Nov 13 17:06:24 2017 +0100
> > 
> >      mm: introduce MAP_FIXED_SAFE
> >      MAP_FIXED is used quite often but it is inherently dangerous because it
> >      unmaps an existing mapping covered by the requested range. While this
> >      might be might be really desidered behavior in many cases there are
> >      others which would rather see a failure than a silent memory corruption.
> >      Introduce a new MAP_FIXED_SAFE flag for mmap to achive this behavior.
> >      It is a MAP_FIXED extension with a single exception that it fails with
> >      ENOMEM if the requested address is already covered by an existing
> >      mapping. We still do rely on get_unmaped_area to handle all the arch
> >      specific MAP_FIXED treatment and check for a conflicting vma after it
> >      returns.
> >      Signed-off-by: Michal Hocko <mhocko@suse.com>
> > 
> > ...... deleted .......
> > diff --git a/mm/mmap.c b/mm/mmap.c
> > index 680506faceae..aad8d37f0205 100644
> > --- a/mm/mmap.c
> > +++ b/mm/mmap.c
> > @@ -1358,6 +1358,10 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
> >   	if (mm->map_count > sysctl_max_map_count)
> >   		return -ENOMEM;
> > +	/* force arch specific MAP_FIXED handling in get_unmapped_area */
> > +	if (flags & MAP_FIXED_SAFE)
> > +		flags |= MAP_FIXED;
> > +
> >   	/* Obtain the address to map to. we verify (or select) it and ensure
> >   	 * that it represents a valid section of the address space.
> >   	 */
> 
> Do you need to move this code above:
> 
>         if (!(flags & MAP_FIXED))
>                 addr = round_hint_to_min(addr);
> 
>         /* Careful about overflows.. */
>         len = PAGE_ALIGN(len);
>         if (!len)
>                 return -ENOMEM;
> 
> Not doing that might mean the hint address will end up being rounded for
> MAP_FIXED_SAFE which would change the behavior from MAP_FIXED.

Yes, I will move it.
-- 
Michal Hocko
SUSE Labs

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To: Michal Hocko <mhocko@kernel.org>
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Michal Hocko <mhocko@kernel.org> writes:

> On Mon 13-11-17 22:34:50, Michael Ellerman wrote:
>> Hi Michal,
>> 
>> Michal Hocko <mhocko@kernel.org> writes:
>> > On Mon 13-11-17 10:20:06, Michal Hocko wrote:
>> >> [Cc arm and ppc maintainers]
>> >
>> > Hmm, it turned out to be a problem on other architectures as well.
>> > CCing more maintainers. For your reference, we are talking about
>> > http://lkml.kernel.org/r/20171023082608.6167-1-mhocko@kernel.org
>> > which has broken architectures which do apply aligning on the mmap
>> > address hint without MAP_FIXED applied. See below my proposed way
>> > around this issue because I belive that the above patch is quite
>> > valuable on its own to be dropped for all archs.
>> 
>> I don't really like your solution sorry :)  The fact that you've had to
>> patch seven arches seems like a red flag.
>> 
>> I think this is a generic problem with MAP_FIXED, which I've heard
>> userspace folks complain about in the past.
>
> The thing is that we canno  change MAP_FIXED behavior as it is carved in
> stone

Yes obviously. I didn't mean to imply we would change MAP_FIXED, rather
we would add a new flag with the new semantics.

>> Currently MAP_FIXED does two things:
>>   1. makes addr not a hint but the required address
>>   2. blasts any existing mapping
>> 
>> You want 1) but not 2).
>
> + fail if there is a clashing range

Yep. I thought that was implied :)

>> So the right solution IMHO would be to add a new mmap flag to request
>> that behaviour, ie. a fixed address but iff there is nothing already
>> mapped there.
>> 
>> I don't know the mm code well enough to know if that's hard for some
>> reason, but it *seems* like it should be doable.
>
> Yes, I have mentioned that in the previous email but the amount of code
> would be even larger. Basically every arch which reimplements
> arch_get_unmapped_area would have to special case new MAP_FIXED flag to
> do vma lookup.

I'd have to look, but my memory of the arch code is that it doesn't deal
with the vma so it wouldn't need any change.

> So this was the most simple solution I could come up
> with. If there was a general interest for MAP_FIXED_SAFE then we can
> introduce it later of course. I would just like the hardening merged
> sooner rather than later.

Sure. But in the scheme of things one more kernel release is not that
big a deal to get it right. Given that the simple approach of dropping
MAP_FIXED turns out to not be simple at all.

cheers
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From - Thu Nov 08 21:40:34 2018
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From: Michael Ellerman <mpe@ellerman.id.au>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.next,gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: linux-next: Tree for Nov 7
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To: Michal Hocko <mhocko@kernel.org>
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Michal Hocko <mhocko@kernel.org> writes:

> On Mon 13-11-17 13:00:57, Michal Hocko wrote:
> [...]
>> Yes, I have mentioned that in the previous email but the amount of code
>> would be even larger. Basically every arch which reimplements
>> arch_get_unmapped_area would have to special case new MAP_FIXED flag to
>> do vma lookup.
>
> It turned out that this might be much more easier than I thought after
> all. It seems we can really handle that in the common code.

Ah nice. I should have read this before replying to your previous mail.

> This would mean that we are exposing a new functionality to the userspace though.
> Myabe this would be useful on its own though.

Yes I think it would. At least jemalloc seems like it could use it:

  https://github.com/jemalloc/jemalloc/blob/9f455e2786685b443201c33119765c8093461174/src/pages.c#L65

And I have memories of some JIT code I read once which did a loop of
mmap()s or something to try and get allocations below 4GB or some other
limit - but I can't remember now what it was.

> Just a quick draft (not
> even compile tested) whether this makes sense in general. I would be
> worried about unexpected behavior when somebody set other bit without a
> good reason and we might fail with ENOMEM for such a call now.
>
> Elf loader would then use MAP_FIXED_SAFE rather than MAP_FIXED.
> ---
> diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
> index 3b26cc62dadb..d021c21f9b01 100644
> --- a/arch/alpha/include/uapi/asm/mman.h
> +++ b/arch/alpha/include/uapi/asm/mman.h
> @@ -31,6 +31,9 @@
>  #define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
>  #define MAP_HUGETLB	0x100000	/* create a huge page mapping */
>  
> +#define MAP_KEEP_MAPPING 0x2000000
> +#define MAP_FIXED_SAFE	MAP_FIXED|MAP_KEEP_MAPPING /* enforce MAP_FIXED without clobbering an existing mapping */


So bike-shedding a bit, but I think "SAFE" is too vague a name.

Perhaps MAP_NO_CLOBBER - which has the single semantic of "do not
clobber any existing mappings".

It would be a flag on its own, so you could pass it with or without
MAP_FIXED, but it would only change the behaviour when MAP_FIXED is
specified also.

cheers
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Subject: Re: linux-next: Tree for Nov 7
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On Tue 14-11-17 19:54:59, Michael Ellerman wrote:
> Michal Hocko <mhocko@kernel.org> writes:
[...]
> > So this was the most simple solution I could come up
> > with. If there was a general interest for MAP_FIXED_SAFE then we can
> > introduce it later of course. I would just like the hardening merged
> > sooner rather than later.
> 
> Sure. But in the scheme of things one more kernel release is not that
> big a deal to get it right. Given that the simple approach of dropping
> MAP_FIXED turns out to not be simple at all.

Well, my idea was to push this hardening to older kernels because those
were more vulnerable for the PIE base vs. stack placement and stack
controllable size from userspace etc... Anyway, as per [1] it seems that
the MAP_FIXED_SAFE doesn't look terrible from the backporting POV.

If there is a general consensus that this is the preferred way to go, I
will post the patch as an RFC to linux-api

[1] http://lkml.kernel.org/r/20171113160637.jhekbdyfpccme3be@dhcp22.suse.cz
-- 
Michal Hocko
SUSE Labs

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To: Michal Hocko <mhocko@kernel.org>
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Michal Hocko <mhocko@kernel.org> writes:

> [Sorry for spamming, this one is the last attempt hopefully]
>
> On Mon 13-11-17 16:49:39, Michal Hocko wrote:
>> On Mon 13-11-17 16:16:41, Michal Hocko wrote:
>> > On Mon 13-11-17 13:00:57, Michal Hocko wrote:
>> > [...]
>> > > Yes, I have mentioned that in the previous email but the amount of code
>> > > would be even larger. Basically every arch which reimplements
>> > > arch_get_unmapped_area would have to special case new MAP_FIXED flag to
>> > > do vma lookup.
>> > 
>> > It turned out that this might be much more easier than I thought after
>> > all. It seems we can really handle that in the common code. This would
>> > mean that we are exposing a new functionality to the userspace though.
>> > Myabe this would be useful on its own though. Just a quick draft (not
>> > even compile tested) whether this makes sense in general. I would be
>> > worried about unexpected behavior when somebody set other bit without a
>> > good reason and we might fail with ENOMEM for such a call now.
>> 
>> Hmm, the bigger problem would be the backward compatibility actually. We
>> would get silent corruptions which is exactly what the flag is trying
>> fix. mmap flags handling really sucks. So I guess we would have to make
>> the flag internal only :/
>
> OK, so this one should take care of the backward compatibility while
> still not touching the arch code

I'm not sure I understand your worries about backward compatibility?

If we add a new mmap flag which is currently unused then what is the
problem? Are you worried about user code that accidentally passes that
flag already?

> diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h
> index 203268f9231e..03c518777f83 100644
> --- a/include/uapi/asm-generic/mman-common.h
> +++ b/include/uapi/asm-generic/mman-common.h
> @@ -25,6 +25,8 @@
>  # define MAP_UNINITIALIZED 0x0		/* Don't support this flag */
>  #endif
>  
> +#define MAP_FIXED_SAFE 0x2000000	/* MAP_FIXED which doesn't unmap underlying mapping */
> +

As I said in my other mail I think this should be a modifier to
MAP_FIXED. That way all the existing code that checks for MAP_FIXED (in
the kernel) works exactly as it currently does - like the check Khalid
pointed out.

And I think MAP_NO_CLOBBER would be a better name.

cheers
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On Tue 14-11-17 20:18:04, Michael Ellerman wrote:
> Michal Hocko <mhocko@kernel.org> writes:
> 
> > [Sorry for spamming, this one is the last attempt hopefully]
> >
> > On Mon 13-11-17 16:49:39, Michal Hocko wrote:
> >> On Mon 13-11-17 16:16:41, Michal Hocko wrote:
> >> > On Mon 13-11-17 13:00:57, Michal Hocko wrote:
> >> > [...]
> >> > > Yes, I have mentioned that in the previous email but the amount of code
> >> > > would be even larger. Basically every arch which reimplements
> >> > > arch_get_unmapped_area would have to special case new MAP_FIXED flag to
> >> > > do vma lookup.
> >> > 
> >> > It turned out that this might be much more easier than I thought after
> >> > all. It seems we can really handle that in the common code. This would
> >> > mean that we are exposing a new functionality to the userspace though.
> >> > Myabe this would be useful on its own though. Just a quick draft (not
> >> > even compile tested) whether this makes sense in general. I would be
> >> > worried about unexpected behavior when somebody set other bit without a
> >> > good reason and we might fail with ENOMEM for such a call now.
> >> 
> >> Hmm, the bigger problem would be the backward compatibility actually. We
> >> would get silent corruptions which is exactly what the flag is trying
> >> fix. mmap flags handling really sucks. So I guess we would have to make
> >> the flag internal only :/
> >
> > OK, so this one should take care of the backward compatibility while
> > still not touching the arch code
> 
> I'm not sure I understand your worries about backward compatibility?

Just imagine you are running an application which uses the new flag
combination on an older kernel. You will get no warning, yet you have no
way to check that you have actually clobbered an existing mapping
because MAP_FIXED will be used the old way.

> If we add a new mmap flag which is currently unused then what is the
> problem? Are you worried about user code that accidentally passes that
> flag already?

If we add a completely new flag, like in this patch, then the code using
the flag will not clobber an existing mapping on older kernels which do
not recognize it (we will simply fall back to the default hint based
implementation). You might not get the mapping you asked for which sucks
but that is not fixable AFAICS. You can at least do

	mapped_addr = mmap(addr, ... MAP_FIXED_SAFE...);
	assert(mapped_addr == addr);

So I do not think we can go with the modifier unfortunatelly.
-- 
Michal Hocko
SUSE Labs
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Subject: Re: [PATCH 0/9] posix_clocks: Prepare syscalls for 64 bit time_t conversion
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To: Deepa Dinamani <deepa.kernel@gmail.com>
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On Fri, Nov 10, 2017 at 11:42 PM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
> The series is a preparation series for individual architectures
> to use 64 bit time_t syscalls in compat and 32 bit emulation modes.
>
> This is a follow up to the series Arnd Bergmann posted:
> https://sourceware.org/ml/libc-alpha/2015-05/msg00070.html
>
> Big picture is as per the lwn article:
> https://lwn.net/Articles/643234/
>
> The series is directed at converting posix clock syscalls:
> clock_gettime, clock_settime, clock_getres and clock_nanosleep
> to use a new data structure __kernel_timespec at syscall boundaries.
> __kernel_timespec maintains 64 bit time_t across all execution modes.
>
> vdso will be handled as part of each architecture when they enable
> support for 64 bit time_t.
>
> The compat syscalls are repurposed to provide backward compatibility
> by using them as native syscalls as well for 32 bit architectures.
> They will continue to use timespec at syscall boundaries.
>
> CONFIG_64_BIT_TIME controls whether the syscalls use __kernel_timespec
> or timespec at syscall boundaries.
>
> The series does the following:
> 1. Enable compat syscalls unconditionally.
> 2. Add a new __kernel_timespec type to be used as the data structure
>    for all the new syscalls.
> 3. Add new config CONFIG_64BIT_TIME(intead of the CONFIG_COMPAT_TIME in
>    [1] and [2] to switch to new definition of __kernel_timespec. It is
>    the same as struct timespec otherwise.
>
> Arnd Bergmann (1):
>   y2038: introduce CONFIG_64BIT_TIME

The series looks good to me overall, and I've added it to my build-testing tree
to see if it shows any regressions in random configurations.

I had on concern about x32, maybe we should check
for "COMPAT_USE_64BIT_TIME" before zeroing out the tv_nsec
bits.

Regarding CONFIG_COMPAT_TIME/CONFIG_64BIT_TIME, would
it help to just leave out that part for now and unconditionally
define '__kernel_timespec' as 'timespec' until we are ready to
convert the architectures?

       Arnd


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On Tue, 2017-11-14 at 10:04 +0100, Michal Hocko wrote:
> If there is a general consensus that this is the preferred way to go,
> I
> will post the patch as an RFC to linux-api
> 
> [1] http://lkml.kernel.org/r/20171113160637.jhekbdyfpccme3be@dhcp22.s
> use.cz

I prefer the new flag. It is cleaner and avoids unintended breakage for
existing flag.

--
Khalid

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Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.year-2038,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.oprofile,gmane.linux.ports.sparc
Subject: Re: [PATCH 0/9] posix_clocks: Prepare syscalls for 64 bit time_t conversion
Date: Wed, 15 Nov 2017 15:11:31 -0800
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> I had on concern about x32, maybe we should check
> for "COMPAT_USE_64BIT_TIME" before zeroing out the tv_nsec
> bits.

Thanks, I think you are right. I had the check conditional on
CONFIG_64BIT_TIME and then removed as I forgot why I added it. :)

> Regarding CONFIG_COMPAT_TIME/CONFIG_64BIT_TIME, would
> it help to just leave out that part for now and unconditionally
> define '__kernel_timespec' as 'timespec' until we are ready to
> convert the architectures?

Another approach would be to use separate configs:

1. To indicate 64 bit time_t syscall support. This will be dependent
on architectures as CONFIG_64BIT_TIME.
We can delete this once all architectures have provided support for this.

2. Another config (maybe COMPAT_32BIT_TIME?) to be introduced later,
which will compile out all syscalls/ features that use 32 bit time_t.
This can help build a y2038 safe kernel later.

Would this work for everyone?

-Deepa
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From - Thu Nov 08 21:40:35 2018
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Subject: Re: [PATCH 0/9] posix_clocks: Prepare syscalls for 64 bit time_t
 conversion
Date: Thu, 16 Nov 2017 10:04:00 +0100 (CET)
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Cc: Mark Rutland <mark.rutland@arm.com>,
 "open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
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To: Deepa Dinamani <deepa.kernel@gmail.com>
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On Wed, 15 Nov 2017, Deepa Dinamani wrote:
> > I had on concern about x32, maybe we should check
> > for "COMPAT_USE_64BIT_TIME" before zeroing out the tv_nsec
> > bits.
> 
> Thanks, I think you are right. I had the check conditional on
> CONFIG_64BIT_TIME and then removed as I forgot why I added it. :)
> 
> > Regarding CONFIG_COMPAT_TIME/CONFIG_64BIT_TIME, would
> > it help to just leave out that part for now and unconditionally
> > define '__kernel_timespec' as 'timespec' until we are ready to
> > convert the architectures?
> 
> Another approach would be to use separate configs:
> 
> 1. To indicate 64 bit time_t syscall support. This will be dependent
> on architectures as CONFIG_64BIT_TIME.
> We can delete this once all architectures have provided support for this.
> 
> 2. Another config (maybe COMPAT_32BIT_TIME?) to be introduced later,
> which will compile out all syscalls/ features that use 32 bit time_t.
> This can help build a y2038 safe kernel later.
> 
> Would this work for everyone?

Having extra config switches which are selectable by architectures and
removed when everything is converted is definitely the right way to go.

That allows you to gradually convert stuff w/o inflicting wreckage all over
the place.

Thanks,

	tglx


From - Thu Nov 08 21:40:35 2018
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From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
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Subject: Re: [PATCH 0/9] posix_clocks: Prepare syscalls for 64 bit time_t conversion
Date: Fri, 17 Nov 2017 00:42:35 +0100
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Cc: Deepa Dinamani <deepa.kernel-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
        John Stultz <john.stultz-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
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        David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
        Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>, devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org,
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        Heiko Carstens <heiko.carstens-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>,
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        "James E.J. Bottomley" <jejb-6jwH94ZQLHl74goWV3ctuw@public.gmane.org>,
        Julian Wiedma
To: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
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On Thu, Nov 16, 2017 at 10:04 AM, Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org> wrote:
> On Wed, 15 Nov 2017, Deepa Dinamani wrote:
>> > I had on concern about x32, maybe we should check
>> > for "COMPAT_USE_64BIT_TIME" before zeroing out the tv_nsec
>> > bits.
>>
>> Thanks, I think you are right. I had the check conditional on
>> CONFIG_64BIT_TIME and then removed as I forgot why I added it. :)
>>
>> > Regarding CONFIG_COMPAT_TIME/CONFIG_64BIT_TIME, would
>> > it help to just leave out that part for now and unconditionally
>> > define '__kernel_timespec' as 'timespec' until we are ready to
>> > convert the architectures?
>>
>> Another approach would be to use separate configs:
>>
>> 1. To indicate 64 bit time_t syscall support. This will be dependent
>> on architectures as CONFIG_64BIT_TIME.
>> We can delete this once all architectures have provided support for this.
>>
>> 2. Another config (maybe COMPAT_32BIT_TIME?) to be introduced later,
>> which will compile out all syscalls/ features that use 32 bit time_t.
>> This can help build a y2038 safe kernel later.
>>
>> Would this work for everyone?
>
> Having extra config switches which are selectable by architectures and
> removed when everything is converted is definitely the right way to go.
>
> That allows you to gradually convert stuff w/o inflicting wreckage all over
> the place.

The CONFIG_64BIT_TIME would do that nicely for the new stuff like
the conditional definition of __kernel_timespec, this one would get
removed after we convert all architectures.

A second issue is how to control the compilation of the compat syscalls.
CONFIG_COMPAT_32BIT_TIME handles that and could be defined
in Kconfig as 'def_bool (!64BIT && CONFIG_64BIT_TIME) || COMPAT',
this is then just a more readable way of expressing exactly when the
functions should be built.

For completeness, there may be a third category, depending on how
we handle things like sys_nanosleep(): Here, we want the native
sys_nanosleep on 64-bit architectures, and compat_sys_nanosleep()
to handle the 32-bit time_t variant on both 32-bit and 64-bit targets,
but our plan is to not have a native 32-bit sys_nanosleep on 32-bit
architectures any more, as new glibc should call clock_nanosleep()
with a new syscall number instead. Should we then enclose
sys_nanosleep in "#if !defined(CONFIG_64BIT_TIME) ||
defined(CONFIG_64BIT)", or should we try to come up with another
Kconfig symbol name that expresses this better?

       Arnd

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From: Thomas Gleixner <tglx@linutronix.de>
Newsgroups: gmane.linux.kernel.year-2038,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.oprofile,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.api,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 0/9] posix_clocks: Prepare syscalls for 64 bit
 time_t conversion
Date: Fri, 17 Nov 2017 09:58:26 +0100 (CET)
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel.year-2038,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.oprofile,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.api,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 0/9] posix_clocks: Prepare syscalls for 64 bit
	time_t conversion
Date: Fri, 17 Nov 2017 10:31:34 +0100
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Newsgroups: gmane.linux.kernel.year-2038,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.oprofile,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.api,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 0/9] posix_clocks: Prepare syscalls for 64 bit
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Cc: Mark Rutland <mark.rutland@arm.com>,
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To: Arnd Bergmann <arnd@arndb.de>
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.kernel.year-2038,gmane.linux.kernel.api,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.oprofile,gmane.linux.ports.sparc
Subject: Re: [PATCH 0/9] posix_clocks: Prepare syscalls for 64 bit time_t conversion
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To: Thomas Gleixner <tglx@linutronix.de>
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On Fri, Nov 17, 2017 at 10:54 AM, Thomas Gleixner <tglx@linutronix.de> wrote:
> On Fri, 17 Nov 2017, Arnd Bergmann wrote:
>> On Fri, Nov 17, 2017 at 9:58 AM, Thomas Gleixner <tglx@linutronix.de> wrote:
>>
>> No, syscall that existing 32-bit user space enters would be handled by
>> compat_sys_nanosleep() on both 32-bit and 64-bit kernels at that
>> point. The idea here is to make the code path more uniform between
>> 32-bit and 64-bit kernels.
>
> So on a 32bit system compat_sys_nanosleep() would be the legacy
> sys_nanosleep() with the existing syscall number, but you don't want to
> introduce a new sys_nanosleep64() for 32bit. That makes a lot of sense.
>
> So back to your original question whether to use #if (MAGIC logic) or a
> separate config symbol. Please use the latter, these magic logic constructs
> are harder to read and prone to get wrong at some point. Having the
> decision logic in one place is always the right thing to do.

How about this:

config LEGACY_TIME_SYSCALLS
      def_bool 64BIT || !64BIT_TIME
      help
        This controls the compilation of the following system calls:
time, stime,
        gettimeofday, settimeofday, adjtimex, nanosleep, alarm, getitimer,
        setitimer, select, utime, utimes, futimesat, and
{old,new}{l,f,}stat{,64}.
        These all pass 32-bit time_t arguments on 32-bit architectures and
        are replaced by other interfaces (e.g. posix timers and clocks, statx).
        C libraries implementing 64-bit time_t in 32-bit architectures have to
        implement the handles by wrapping around the newer interfaces.
        New architectures should not explicitly disable this.

       Arnd


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Subject: Re: [PATCH 0/9] posix_clocks: Prepare syscalls for 64 bit
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Various sparse patches for v4.16
Date: Fri, 17 Nov 2017 22:22:57 +0100
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To: linux-parisc@vger.kernel.org,
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Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 27c62baa9c4e..afe493b23d04 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -183,15 +183,15 @@ static inline unsigned char readb(const volatile void __iomem *addr)
 }
 static inline unsigned short readw(const volatile void __iomem *addr)
 {
-	return le16_to_cpu(__raw_readw(addr));
+	return le16_to_cpu((__le16 __force) __raw_readw(addr));
 }
 static inline unsigned int readl(const volatile void __iomem *addr)
 {
-	return le32_to_cpu(__raw_readl(addr));
+	return le32_to_cpu((__le32 __force) __raw_readl(addr));
 }
 static inline unsigned long long readq(const volatile void __iomem *addr)
 {
-	return le64_to_cpu(__raw_readq(addr));
+	return le64_to_cpu((__le64 __force) __raw_readq(addr));
 }
 
 static inline void writeb(unsigned char b, volatile void __iomem *addr)
@@ -200,15 +200,15 @@ static inline void writeb(unsigned char b, volatile void __iomem *addr)
 }
 static inline void writew(unsigned short w, volatile void __iomem *addr)
 {
-	__raw_writew(cpu_to_le16(w), addr);
+	__raw_writew((__u16 __force) cpu_to_le16(w), addr);
 }
 static inline void writel(unsigned int l, volatile void __iomem *addr)
 {
-	__raw_writel(cpu_to_le32(l), addr);
+	__raw_writel((__u32 __force) cpu_to_le32(l), addr);
 }
 static inline void writeq(unsigned long long q, volatile void __iomem *addr)
 {
-	__raw_writeq(cpu_to_le64(q), addr);
+	__raw_writeq((__u64 __force) cpu_to_le64(q), addr);
 }
 
 #define	readb	readb
diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
index aa9f29b875de..49d8d53e50b7 100644
--- a/drivers/input/serio/gscps2.c
+++ b/drivers/input/serio/gscps2.c
@@ -91,7 +91,7 @@ struct gscps2port {
 	struct parisc_device *padev;
 	struct serio *port;
 	spinlock_t lock;
-	char *addr;
+	char __iomem *addr;
 	u8 act, append; /* position in buffer[] */
 	struct {
 		u8 data;
@@ -114,7 +114,7 @@ struct gscps2port {
  * wait_TBE() - wait for Transmit Buffer Empty
  */
 
-static int wait_TBE(char *addr)
+static int wait_TBE(char __iomem *addr)
 {
 	int timeout = 25000; /* device is expected to react within 250 msec */
 	while (gscps2_readb_status(addr) & GSC_STAT_TBNE) {
@@ -146,14 +146,14 @@ static void gscps2_flush(struct gscps2port *ps2port)
 static inline int gscps2_writeb_output(struct gscps2port *ps2port, u8 data)
 {
 	unsigned long flags;
-	char *addr = ps2port->addr;
+	char __iomem *addr = ps2port->addr;
 
 	if (!wait_TBE(addr)) {
 		printk(KERN_DEBUG PFX "timeout - could not write byte %#x\n", data);
 		return 0;
 	}
 
-	while (gscps2_readb_status(ps2port->addr) & GSC_STAT_RBNE)
+	while (gscps2_readb_status(addr) & GSC_STAT_RBNE)
 		/* wait */;
 
 	spin_lock_irqsave(&ps2port->lock, flags);
@@ -200,13 +200,12 @@ static void gscps2_enable(struct gscps2port *ps2port, int enable)
 
 static void gscps2_reset(struct gscps2port *ps2port)
 {
-	char *addr = ps2port->addr;
 	unsigned long flags;
 
 	/* reset the interface */
 	spin_lock_irqsave(&ps2port->lock, flags);
 	gscps2_flush(ps2port);
-	writeb(0xff, addr+GSC_RESET);
+	writeb(0xff, ps2port->addr + GSC_RESET);
 	gscps2_flush(ps2port);
 	spin_unlock_irqrestore(&ps2port->lock, flags);
 }
diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index ff1a332d76e4..0c6e8b44b4ed 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -176,7 +176,7 @@ static int led_proc_open(struct inode *inode, struct file *file)
 }
 
 
-static ssize_t led_proc_write(struct file *file, const char *buf,
+static ssize_t led_proc_write(struct file *file, const char __user *buf,
 	size_t count, loff_t *pos)
 {
 	void *data = PDE_DATA(file_inode(file));
@@ -250,7 +250,7 @@ static int __init led_create_procfs(void)
 
 	if (led_type == -1) return -1;
 
-	proc_pdc_root = proc_mkdir("pdc", 0);
+	proc_pdc_root = proc_mkdir("pdc", NULL);
 	if (!proc_pdc_root) return -1;
 
 	if (!lcd_no_led_support)
diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
index 5f710aaaf3da..190c0a7a1c52 100644
--- a/drivers/parport/parport_gsc.c
+++ b/drivers/parport/parport_gsc.c
@@ -256,7 +256,7 @@ struct parport *parport_gsc_probe_port(unsigned long base,
 	}
 	priv->ctr = 0xc;
 	priv->ctr_writable = 0xff;
-	priv->dma_buf = 0;
+	priv->dma_buf = NULL;
 	priv->dma_handle = 0;
 	p->base = base;
 	p->base_hi = base_hi;
diff --git a/drivers/scsi/ncr53c8xx.h b/drivers/scsi/ncr53c8xx.h
index 02901c54b08b..5b75b5cb69c1 100644
--- a/drivers/scsi/ncr53c8xx.h
+++ b/drivers/scsi/ncr53c8xx.h
@@ -356,8 +356,8 @@
 
 #if	defined(__BIG_ENDIAN) && !defined(SCSI_NCR_BIG_ENDIAN)
 
-#define cpu_to_scr(dw)	cpu_to_le32(dw)
-#define scr_to_cpu(dw)	le32_to_cpu(dw)
+#define cpu_to_scr(dw)	((__u32 __force) cpu_to_le32(dw))
+#define scr_to_cpu(dw)	le32_to_cpu((__le32 __force)(dw))
 
 #elif	defined(__LITTLE_ENDIAN) && defined(SCSI_NCR_BIG_ENDIAN)
 
diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
index 6ded5c198998..3c2e4cabc08f 100644
--- a/drivers/video/fbdev/stifb.c
+++ b/drivers/video/fbdev/stifb.c
@@ -527,7 +527,7 @@ rattlerSetupPlanes(struct stifb_info *fb)
 	fb->id = saved_id;
 
 	for (y = 0; y < fb->info.var.yres; ++y)
-		memset(fb->info.screen_base + y * fb->info.fix.line_length,
+		fb_memset(fb->info.screen_base + y * fb->info.fix.line_length,
 			0xff, fb->info.var.xres * fb->info.var.bits_per_pixel/8);
 
 	CRX24_SET_OVLY_MASK(fb);
--
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc architecture updates for 4.15
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Hi Linus,

please pull parisc architecture updates for the merge window of kernel 4.15 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.15-1


Highlights:

- One important fix from Dave to prevent kernel crash when userspace hands over
  invalid values to our in-kernel CAS implementation.

- Added CPU topology support, including multi-core scheduler support on PA8900
  CPUs

Minor changes:

- Minor fixes for sparse (from Luc)

- Drop duplicates for CPU_BIG_ENDIAN from parisc and sparc top Kconfig files
  (from Babu)

- Reorganized parisc PDC (firmware-access) header files for usage from
  userspace. Required for upcoming qemu parisc emulator and SeaBIOS fork
  to support parisc.

Thanks,
Helge


----------------------------------------------------------------
Babu Moger (1):
      arch: Fix duplicates in Kconfig for parisc and sparc

Helge Deller (2):
      parisc: Add CPU topology support
      parisc: Make some PDC structures accessible in uapi headers

John David Anglin (1):
      parisc: Fix validity check of pointer size argument in new CAS implementation

Luc Van Oostenryck (1):
      parisc: Pass endianness info to sparse

 arch/parisc/Kconfig                |  19 ++-
 arch/parisc/Makefile               |   2 +-
 arch/parisc/include/asm/pdc.h      | 255 ------------------------------------
 arch/parisc/include/asm/topology.h |  36 ++++++
 arch/parisc/include/uapi/asm/pdc.h | 256 ++++++++++++++++++++++++++++++++++++-
 arch/parisc/kernel/Makefile        |   4 +-
 arch/parisc/kernel/processor.c     |  13 ++
 arch/parisc/kernel/setup.c         |   2 +
 arch/parisc/kernel/syscall.S       |   6 +-
 arch/parisc/kernel/topology.c      | 153 ++++++++++++++++++----
 arch/sparc/Kconfig                 |   3 -
 11 files changed, 452 insertions(+), 297 deletions(-)
 create mode 100644 arch/parisc/include/asm/topology.h
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From - Thu Nov 08 21:40:36 2018
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Cc: Florian Weimer <fweimer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, linux-xfs <linux-xfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
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 "linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org" <linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org>,
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 "Darrick J . Wong" <darrick.wong-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>, linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
 Michal Hocko <mhocko-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
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On Wed, Nov 22, 2017 at 08:52:37AM -0800, Dan Williams wrote:
> On Wed, Nov 22, 2017 at 4:02 AM, Vlastimil Babka <vbabka-AlSwsSmVLrQ@public.gmane.org> wrote:
> > On 11/01/2017 04:36 PM, Jan Kara wrote:
> >> From: Dan Williams <dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> >>
> >> The mmap(2) syscall suffers from the ABI anti-pattern of not validating
> >> unknown flags. However, proposals like MAP_SYNC need a mechanism to
> >> define new behavior that is known to fail on older kernels without the
> >> support. Define a new MAP_SHARED_VALIDATE flag pattern that is
> >> guaranteed to fail on all legacy mmap implementations.
> >
> > So I'm trying to make sense of this together with Michal's attempt for
> > MAP_FIXED_SAFE [1] where he has to introduce a completely new flag
> > instead of flag modifier exactly for the reason of not validating
> > unknown flags. And my conclusion is that because MAP_SHARED_VALIDATE
> > implies MAP_SHARED and excludes MAP_PRIVATE, MAP_FIXED_SAFE as a
> > modifier cannot build on top of this. Wouldn't thus it be really better
> > long-term to introduce mmap3 at this point? ...
> 
> We have room to define MAP_PRIVATE_VALIDATE in MAP_TYPE on every arch
> except parisc. Can we steal an extra bit for MAP_TYPE from somewhere
> else on parisc?

It looks like 0x08 should work.  But I don't have an HPUX machine around
to check that HP didn't use that bit for something else.

It'd probably help to cc the linux-parisc mailing list when asking
questions about PARISC, eh?

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Subject: [PATCH] video/fbdev/stifb: Delete an error message for a failed
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 24 Nov 2017 22:22:06 +0100

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/video/fbdev/stifb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
index 6ded5c198998..fe217a2f7d21 100644
--- a/drivers/video/fbdev/stifb.c
+++ b/drivers/video/fbdev/stifb.c
@@ -1126,10 +1126,8 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
 	int bpp, xres, yres;
 
 	fb = kzalloc(sizeof(*fb), GFP_ATOMIC);
-	if (!fb) {
-		printk(KERN_ERR "stifb: Could not allocate stifb structure\n");
+	if (!fb)
 		return -ENODEV;
-	}
 	
 	info = &fb->info;
 
-- 
2.15.0

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Subject: Re: [PATCH] video/fbdev/stifb: Delete an error message for a failed memory allocation in stifb_init_fb()
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Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Fri, 24 Nov 2017 22:22:06 +0100
> 
> Omit an extra message for a memory allocation failure in this function.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
> ---
>  drivers/video/fbdev/stifb.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
> index 6ded5c198998..fe217a2f7d21 100644
> --- a/drivers/video/fbdev/stifb.c
> +++ b/drivers/video/fbdev/stifb.c
> @@ -1126,10 +1126,8 @@ static int __init stifb_init_fb(struct sti_struct
> *sti, int bpp_pref) int bpp, xres, yres;
> 
>  	fb = kzalloc(sizeof(*fb), GFP_ATOMIC);
> -	if (!fb) {
> -		printk(KERN_ERR "stifb: Could not allocate stifb structure\n");
> +	if (!fb)
>  		return -ENODEV;
> -	}
> 
>  	info = &fb->info;

This should be -ENOMEM.

Eike
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On 22.11.2017 20:53, Matthew Wilcox wrote:
> On Wed, Nov 22, 2017 at 08:52:37AM -0800, Dan Williams wrote:
>> On Wed, Nov 22, 2017 at 4:02 AM, Vlastimil Babka <vbabka@suse.cz> wrote:
>>> On 11/01/2017 04:36 PM, Jan Kara wrote:
>>>> From: Dan Williams <dan.j.williams@intel.com>
>>>>
>>>> The mmap(2) syscall suffers from the ABI anti-pattern of not validating
>>>> unknown flags. However, proposals like MAP_SYNC need a mechanism to
>>>> define new behavior that is known to fail on older kernels without the
>>>> support. Define a new MAP_SHARED_VALIDATE flag pattern that is
>>>> guaranteed to fail on all legacy mmap implementations.
>>>
>>> So I'm trying to make sense of this together with Michal's attempt for
>>> MAP_FIXED_SAFE [1] where he has to introduce a completely new flag
>>> instead of flag modifier exactly for the reason of not validating
>>> unknown flags. And my conclusion is that because MAP_SHARED_VALIDATE
>>> implies MAP_SHARED and excludes MAP_PRIVATE, MAP_FIXED_SAFE as a
>>> modifier cannot build on top of this. Wouldn't thus it be really better
>>> long-term to introduce mmap3 at this point? ...
>>
>> We have room to define MAP_PRIVATE_VALIDATE in MAP_TYPE on every arch
>> except parisc. Can we steal an extra bit for MAP_TYPE from somewhere
>> else on parisc?
> 
> It looks like 0x08 should work.

I posted an RFC to the parisc mailing list for that:
https://patchwork.kernel.org/patch/9970553/

Basically this is (for parisc only):
-#define MAP_TYPE	0x03		/* Mask for type of mapping */
+#define MAP_TYPE	(MAP_SHARED|MAP_PRIVATE|MAP_RESRVD1|MAP_RESRVD2) /* Mask for type of mapping */
 #define MAP_FIXED	0x04		/* Interpret addr exactly */
+#define MAP_RESRVD1	0x08		/* reserved for 3rd bit of MAP_TYPE */
 #define MAP_ANONYMOUS	0x10		/* don't use a file */
+#define MAP_RESRVD2	0x20		/* reserved for 4th bit of MAP_TYPE */

> But I don't have an HPUX machine around
> to check that HP didn't use that bit for something else.

We completely dropped support for HPUX binaries, so it's not relvant any longer. 

> It'd probably help to cc the linux-parisc mailing list when asking
> questions about PARISC, eh?

Yes, please.

Helge

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Subject: [PATCH 1/3] Input: hil_mlc: convert timeval to time64_t
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From: WEN Pingbo <pingbo.wen@linaro.org>

Since mlc->lcv_t is only interested in seconds, directly using time64_t
here.

This gets rid of the deprecated do_gettimeofday() and avoids problems
with time going backwards since we now use the monotonic clocksource.

Signed-off-by: WEN Pingbo <pingbo.wen@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/input/serio/hil_mlc.c | 8 +++-----
 include/linux/hil_mlc.h       | 2 +-
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index d66d01c5373b..581e47119363 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -274,14 +274,12 @@ static int hilse_match(hil_mlc *mlc, int unused)
 /* An LCV used to prevent runaway loops, forces 5 second sleep when reset. */
 static int hilse_init_lcv(hil_mlc *mlc, int unused)
 {
-	struct timeval tv;
+	time64_t now = ktime_get_seconds();
 
-	do_gettimeofday(&tv);
-
-	if (mlc->lcv && (tv.tv_sec - mlc->lcv_tv.tv_sec) < 5)
+	if (mlc->lcv && (now - mlc->lcv_time) < 5)
 		return -1;
 
-	mlc->lcv_tv = tv;
+	mlc->lcv_time = now;
 	mlc->lcv = 0;
 
 	return 0;
diff --git a/include/linux/hil_mlc.h b/include/linux/hil_mlc.h
index 394a8405dd74..d6fc839bdf46 100644
--- a/include/linux/hil_mlc.h
+++ b/include/linux/hil_mlc.h
@@ -149,7 +149,7 @@ struct hil_mlc {
 
 	int			ddi;	/* Last operational device id */
 	int			lcv;	/* LCV to throttle loops */
-	struct timeval		lcv_tv; /* Time loop was started */
+	time64_t		lcv_time; /* Time loop was started */
 
 	int			di_map[7]; /* Maps below items to live devs */
 	struct hil_mlc_devinfo	di[HIL_MLC_DEVMEM];
-- 
2.9.0

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From: WEN Pingbo <pingbo.wen@linaro.org>

struct timeval is not y2038 safe, and what mlc->instart do is
scheduling a task in a fixed timeout, so jiffies is the
simplest choice here.

In hilse_donode(), the expires in mod_timer equals

	jiffies + intimeout - (now - instart)

If we use jiffies in 'now', the expires equals

	instart + intimeout

So, all we need to do is that making sure expires is a future
timestamp before passed it to mod_timer.

[arnd: slightly simplified patch further]

Link: https://lists.linaro.org/pipermail/y2038/2015-October/000937.html
Signed-off-by: WEN Pingbo <pingbo.wen@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/input/serio/hil_mlc.c    | 18 +++++++-----------
 drivers/input/serio/hp_sdc_mlc.c |  5 +----
 include/linux/hil_mlc.h          |  4 ++--
 3 files changed, 10 insertions(+), 17 deletions(-)

diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index 581e47119363..e1423f7648d6 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -602,8 +602,8 @@ static inline void hilse_setup_input(hil_mlc *mlc, const struct hilse_node *node
 		BUG();
 	}
 	mlc->istarted = 1;
-	mlc->intimeout = node->arg;
-	do_gettimeofday(&(mlc->instart));
+	mlc->intimeout = usecs_to_jiffies(node->arg);
+	mlc->instart = jiffies;
 	mlc->icount = 15;
 	memset(mlc->ipacket, 0, 16 * sizeof(hil_packet));
 	BUG_ON(down_trylock(&mlc->isem));
@@ -708,7 +708,7 @@ static int hilse_donode(hil_mlc *mlc)
 			break;
 		}
 		mlc->ostarted = 0;
-		do_gettimeofday(&(mlc->instart));
+		mlc->instart = jiffies;
 		write_unlock_irqrestore(&mlc->lock, flags);
 		nextidx = HILSEN_NEXT;
 		break;
@@ -729,18 +729,14 @@ static int hilse_donode(hil_mlc *mlc)
 #endif
 
 	while (nextidx & HILSEN_SCHED) {
-		struct timeval tv;
+		unsigned long now = jiffies;
 
 		if (!sched_long)
 			goto sched;
 
-		do_gettimeofday(&tv);
-		tv.tv_usec += USEC_PER_SEC * (tv.tv_sec - mlc->instart.tv_sec);
-		tv.tv_usec -= mlc->instart.tv_usec;
-		if (tv.tv_usec >= mlc->intimeout) goto sched;
-		tv.tv_usec = (mlc->intimeout - tv.tv_usec) * HZ / USEC_PER_SEC;
-		if (!tv.tv_usec) goto sched;
-		mod_timer(&hil_mlcs_kicker, jiffies + tv.tv_usec);
+		if (time_after(now, mlc->instart + mlc->intimeout))
+			 goto sched;
+		mod_timer(&hil_mlcs_kicker, mlc->instart + mlc->intimeout);
 		break;
 	sched:
 		tasklet_schedule(&hil_mlcs_tasklet);
diff --git a/drivers/input/serio/hp_sdc_mlc.c b/drivers/input/serio/hp_sdc_mlc.c
index d50f0678bf47..232d30c825bd 100644
--- a/drivers/input/serio/hp_sdc_mlc.c
+++ b/drivers/input/serio/hp_sdc_mlc.c
@@ -149,7 +149,6 @@ static int hp_sdc_mlc_in(hil_mlc *mlc, suseconds_t timeout)
 
 	/* Try to down the semaphore */
 	if (down_trylock(&mlc->isem)) {
-		struct timeval tv;
 		if (priv->emtestmode) {
 			mlc->ipacket[0] =
 				HIL_ERR_INT | (mlc->opacket &
@@ -160,9 +159,7 @@ static int hp_sdc_mlc_in(hil_mlc *mlc, suseconds_t timeout)
 			/* printk(KERN_DEBUG PREFIX ">[%x]\n", mlc->ipacket[0]); */
 			goto wasup;
 		}
-		do_gettimeofday(&tv);
-		tv.tv_usec += USEC_PER_SEC * (tv.tv_sec - mlc->instart.tv_sec);
-		if (tv.tv_usec - mlc->instart.tv_usec > mlc->intimeout) {
+		if (time_after(jiffies, mlc->instart + mlc->intimeout)) {
 			/*	printk("!%i %i",
 				tv.tv_usec - mlc->instart.tv_usec,
 				mlc->intimeout);
diff --git a/include/linux/hil_mlc.h b/include/linux/hil_mlc.h
index d6fc839bdf46..774f7d3b8f6a 100644
--- a/include/linux/hil_mlc.h
+++ b/include/linux/hil_mlc.h
@@ -144,8 +144,8 @@ struct hil_mlc {
 	hil_packet		ipacket[16];
 	hil_packet		imatch;
 	int			icount;
-	struct timeval		instart;
-	suseconds_t		intimeout;
+	unsigned long		instart;
+	unsigned long		intimeout;
 
 	int			ddi;	/* Last operational device id */
 	int			lcv;	/* LCV to throttle loops */
-- 
2.9.0


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Subject: [PATCH 3/3] Input: hp_sdc: convert to ktime_get()
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This gets rid of the deprecated do_gettimeofday() call in favor
of ktime_get(), which is also more reliable as it uses monotonic
times. The code now gets a bit simpler.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/input/serio/hp_sdc.c | 17 +++++++----------
 include/linux/hp_sdc.h       |  2 +-
 2 files changed, 8 insertions(+), 11 deletions(-)

diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index 1d7c7d81a5ef..0b8a25c58d02 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -193,7 +193,7 @@ static void hp_sdc_take(int irq, void *dev_id, uint8_t status, uint8_t data)
 	curr->seq[curr->idx++] = status;
 	curr->seq[curr->idx++] = data;
 	hp_sdc.rqty -= 2;
-	do_gettimeofday(&hp_sdc.rtv);
+	hp_sdc.rtime = ktime_get();
 
 	if (hp_sdc.rqty <= 0) {
 		/* All data has been gathered. */
@@ -306,13 +306,10 @@ static void hp_sdc_tasklet(unsigned long foo)
 	write_lock_irq(&hp_sdc.rtq_lock);
 
 	if (hp_sdc.rcurr >= 0) {
-		struct timeval tv;
+		ktime_t now = ktime_get();
 
-		do_gettimeofday(&tv);
-		if (tv.tv_sec > hp_sdc.rtv.tv_sec)
-			tv.tv_usec += USEC_PER_SEC;
-
-		if (tv.tv_usec - hp_sdc.rtv.tv_usec > HP_SDC_MAX_REG_DELAY) {
+		if (ktime_after(now, ktime_add_us(hp_sdc.rtime,
+						  HP_SDC_MAX_REG_DELAY))) {
 			hp_sdc_transaction *curr;
 			uint8_t tmp;
 
@@ -321,8 +318,8 @@ static void hp_sdc_tasklet(unsigned long foo)
 			 * we'll need to figure out a way to communicate
 			 * it back to the application. and be less verbose.
 			 */
-			printk(KERN_WARNING PREFIX "read timeout (%ius)!\n",
-			       (int)(tv.tv_usec - hp_sdc.rtv.tv_usec));
+			printk(KERN_WARNING PREFIX "read timeout (%lldus)!\n",
+			       ktime_us_delta(now, hp_sdc.rtime));
 			curr->idx += hp_sdc.rqty;
 			hp_sdc.rqty = 0;
 			tmp = curr->seq[curr->actidx];
@@ -551,7 +548,7 @@ unsigned long hp_sdc_put(void)
 
 			/* Start a new read */
 			hp_sdc.rqty = curr->seq[curr->idx];
-			do_gettimeofday(&hp_sdc.rtv);
+			hp_sdc.rtime = ktime_get();
 			curr->idx++;
 			/* Still need to lock here in case of spurious irq. */
 			write_lock_irq(&hp_sdc.rtq_lock);
diff --git a/include/linux/hp_sdc.h b/include/linux/hp_sdc.h
index d392975d8887..6f1dee7e67e0 100644
--- a/include/linux/hp_sdc.h
+++ b/include/linux/hp_sdc.h
@@ -281,7 +281,7 @@ typedef struct {
 	hp_sdc_transaction *tq[HP_SDC_QUEUE_LEN]; /* All pending read/writes */
 
 	int		rcurr, rqty;	/* Current read transact in process */
-	struct timeval	rtv;		/* Time when current read started */
+	ktime_t		rtime;		/* Time when current read started */
 	int		wcurr;		/* Current write transact in process */
 
 	int		dev_err;	/* carries status from registration */
-- 
2.9.0


From - Thu Nov 08 21:40:36 2018
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Subject: Re: [PATCH 01/18] mm: introduce MAP_SHARED_VALIDATE, a mechanism to
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To: Helge Deller <deller@gmx.de>, Matthew Wilcox <willy@infradead.org>,
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On 11/25/2017 07:45 PM, Helge Deller wrote:
> On 22.11.2017 20:53, Matthew Wilcox wrote:
>> On Wed, Nov 22, 2017 at 08:52:37AM -0800, Dan Williams wrote:
>>> On Wed, Nov 22, 2017 at 4:02 AM, Vlastimil Babka <vbabka@suse.cz> wrote:
>>>> On 11/01/2017 04:36 PM, Jan Kara wrote:
>>>>> From: Dan Williams <dan.j.williams@intel.com>
>>>>>
>>>>> The mmap(2) syscall suffers from the ABI anti-pattern of not validating
>>>>> unknown flags. However, proposals like MAP_SYNC need a mechanism to
>>>>> define new behavior that is known to fail on older kernels without the
>>>>> support. Define a new MAP_SHARED_VALIDATE flag pattern that is
>>>>> guaranteed to fail on all legacy mmap implementations.
>>>>
>>>> So I'm trying to make sense of this together with Michal's attempt for
>>>> MAP_FIXED_SAFE [1] where he has to introduce a completely new flag
>>>> instead of flag modifier exactly for the reason of not validating
>>>> unknown flags. And my conclusion is that because MAP_SHARED_VALIDATE
>>>> implies MAP_SHARED and excludes MAP_PRIVATE, MAP_FIXED_SAFE as a
>>>> modifier cannot build on top of this. Wouldn't thus it be really better
>>>> long-term to introduce mmap3 at this point? ...
>>>
>>> We have room to define MAP_PRIVATE_VALIDATE in MAP_TYPE on every arch
>>> except parisc. Can we steal an extra bit for MAP_TYPE from somewhere
>>> else on parisc?
>>
>> It looks like 0x08 should work.
> 
> I posted an RFC to the parisc mailing list for that:
> https://patchwork.kernel.org/patch/9970553/

Thanks. BTW there doesn't seem to be much interest making MAP_FIXED_SAFE
a flag modifier after all, so MAP_PRIVATE_VALIDATE wouldn't get
immediate users.

> Basically this is (for parisc only):
> -#define MAP_TYPE	0x03		/* Mask for type of mapping */
> +#define MAP_TYPE	(MAP_SHARED|MAP_PRIVATE|MAP_RESRVD1|MAP_RESRVD2) /* Mask for type of mapping */
>  #define MAP_FIXED	0x04		/* Interpret addr exactly */
> +#define MAP_RESRVD1	0x08		/* reserved for 3rd bit of MAP_TYPE */
>  #define MAP_ANONYMOUS	0x10		/* don't use a file */
> +#define MAP_RESRVD2	0x20		/* reserved for 4th bit of MAP_TYPE */
> 
>> But I don't have an HPUX machine around
>> to check that HP didn't use that bit for something else.
> 
> We completely dropped support for HPUX binaries, so it's not relvant any longer. 
> 
>> It'd probably help to cc the linux-parisc mailing list when asking
>> questions about PARISC, eh?
> 
> Yes, please.
> 
> Helge
> 

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We store elapsed time for a crashed process in struct elf_prstatus using
'timeval' structures. Once glibc starts using 64-bit time_t, this becomes
incompatible with the kernel's idea of timeval since the structure layout
no longer matches on 32-bit architectures.

This changes the definition of the elf_prstatus structure to use
__kernel_old_timeval instead, which is hardcoded to the currently used
binary layout. There is no risk of overflow in y2038 though, because
the time values are all relative times, and can store up to 68 years
of process elapsed time.

There is a risk of applications breaking at build time when they
use the new kernel headers and expect the type to be exactly 'timeval'
rather than a structure that has the same fields as before. Those
applications have to be modified to deal with 64-bit time_t anyway.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/mips/kernel/binfmt_elfn32.c  |  4 ++--
 arch/mips/kernel/binfmt_elfo32.c  |  4 ++--
 arch/parisc/kernel/binfmt_elf32.c |  4 ++--
 fs/binfmt_elf.c                   | 12 ++++++------
 fs/binfmt_elf_fdpic.c             | 12 ++++++------
 fs/compat_binfmt_elf.c            |  4 ++--
 include/uapi/linux/elfcore.h      |  8 ++++----
 7 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c
index 89b234844534..2fe2d5573289 100644
--- a/arch/mips/kernel/binfmt_elfn32.c
+++ b/arch/mips/kernel/binfmt_elfn32.c
@@ -100,7 +100,7 @@ jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value)
 #undef TASK_SIZE
 #define TASK_SIZE TASK_SIZE32
 
-#undef ns_to_timeval
-#define ns_to_timeval ns_to_compat_timeval
+#undef ns_to_kernel_old_timeval
+#define ns_to_kernel_old_timeval ns_to_compat_timeval
 
 #include "../../../fs/binfmt_elf.c"
diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c
index a88c59db3d48..d3c37583ef91 100644
--- a/arch/mips/kernel/binfmt_elfo32.c
+++ b/arch/mips/kernel/binfmt_elfo32.c
@@ -103,7 +103,7 @@ jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value)
 #undef TASK_SIZE
 #define TASK_SIZE TASK_SIZE32
 
-#undef ns_to_timeval
-#define ns_to_timeval ns_to_compat_timeval
+#undef ns_to_kernel_old_timeval
+#define ns_to_kernel_old_timeval ns_to_compat_timeval
 
 #include "../../../fs/binfmt_elf.c"
diff --git a/arch/parisc/kernel/binfmt_elf32.c b/arch/parisc/kernel/binfmt_elf32.c
index 20dfa081ed0b..ad3ea00c64f7 100644
--- a/arch/parisc/kernel/binfmt_elf32.c
+++ b/arch/parisc/kernel/binfmt_elf32.c
@@ -92,7 +92,7 @@ struct elf_prpsinfo32
 	current->thread.map_base = DEFAULT_MAP_BASE32; \
 	current->thread.task_size = DEFAULT_TASK_SIZE32 \
 
-#undef ns_to_timeval
-#define ns_to_timeval ns_to_compat_timeval
+#undef ns_to_kernel_old_timeval
+#define ns_to_kernel_old_timeval ns_to_compat_timeval
 
 #include "../../../fs/binfmt_elf.c"
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 83732fef510d..7ae716db7d99 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1500,18 +1500,18 @@ static void fill_prstatus(struct elf_prstatus *prstatus,
 		 * group-wide total, not its individual thread total.
 		 */
 		thread_group_cputime(p, &cputime);
-		prstatus->pr_utime = ns_to_timeval(cputime.utime);
-		prstatus->pr_stime = ns_to_timeval(cputime.stime);
+		prstatus->pr_utime = ns_to_kernel_old_timeval(cputime.utime);
+		prstatus->pr_stime = ns_to_kernel_old_timeval(cputime.stime);
 	} else {
 		u64 utime, stime;
 
 		task_cputime(p, &utime, &stime);
-		prstatus->pr_utime = ns_to_timeval(utime);
-		prstatus->pr_stime = ns_to_timeval(stime);
+		prstatus->pr_utime = ns_to_kernel_old_timeval(utime);
+		prstatus->pr_stime = ns_to_kernel_old_timeval(stime);
 	}
 
-	prstatus->pr_cutime = ns_to_timeval(p->signal->cutime);
-	prstatus->pr_cstime = ns_to_timeval(p->signal->cstime);
+	prstatus->pr_cutime = ns_to_kernel_old_timeval(p->signal->cutime);
+	prstatus->pr_cstime = ns_to_kernel_old_timeval(p->signal->cstime);
 }
 
 static int fill_psinfo(struct elf_prpsinfo *psinfo, struct task_struct *p,
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 429326b6e2e7..89717459224b 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1362,17 +1362,17 @@ static void fill_prstatus(struct elf_prstatus *prstatus,
 		 * group-wide total, not its individual thread total.
 		 */
 		thread_group_cputime(p, &cputime);
-		prstatus->pr_utime = ns_to_timeval(cputime.utime);
-		prstatus->pr_stime = ns_to_timeval(cputime.stime);
+		prstatus->pr_utime = ns_to_kernel_old_timeval(cputime.utime);
+		prstatus->pr_stime = ns_to_kernel_old_timeval(cputime.stime);
 	} else {
 		u64 utime, stime;
 
 		task_cputime(p, &utime, &stime);
-		prstatus->pr_utime = ns_to_timeval(utime);
-		prstatus->pr_stime = ns_to_timeval(stime);
+		prstatus->pr_utime = ns_to_kernel_old_timeval(utime);
+		prstatus->pr_stime = ns_to_kernel_old_timeval(stime);
 	}
-	prstatus->pr_cutime = ns_to_timeval(p->signal->cutime);
-	prstatus->pr_cstime = ns_to_timeval(p->signal->cstime);
+	prstatus->pr_cutime = ns_to_kernel_old_timeval(p->signal->cutime);
+	prstatus->pr_cstime = ns_to_kernel_old_timeval(p->signal->cstime);
 
 	prstatus->pr_exec_fdpic_loadmap = p->mm->context.exec_fdpic_loadmap;
 	prstatus->pr_interp_fdpic_loadmap = p->mm->context.interp_fdpic_loadmap;
diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c
index 504b3c3539dc..5df608af1306 100644
--- a/fs/compat_binfmt_elf.c
+++ b/fs/compat_binfmt_elf.c
@@ -51,8 +51,8 @@
 #define elf_prstatus	compat_elf_prstatus
 #define elf_prpsinfo	compat_elf_prpsinfo
 
-#undef ns_to_timeval
-#define ns_to_timeval ns_to_compat_timeval
+#undef ns_to_kernel_old_timeval
+#define ns_to_kernel_old_timeval ns_to_compat_timeval
 
 /*
  * To use this file, asm/elf.h must define compat_elf_check_arch.
diff --git a/include/uapi/linux/elfcore.h b/include/uapi/linux/elfcore.h
index 0b2c9e16e345..baf03562306d 100644
--- a/include/uapi/linux/elfcore.h
+++ b/include/uapi/linux/elfcore.h
@@ -53,10 +53,10 @@ struct elf_prstatus
 	pid_t	pr_ppid;
 	pid_t	pr_pgrp;
 	pid_t	pr_sid;
-	struct timeval pr_utime;	/* User time */
-	struct timeval pr_stime;	/* System time */
-	struct timeval pr_cutime;	/* Cumulative user time */
-	struct timeval pr_cstime;	/* Cumulative system time */
+	struct __kernel_old_timeval pr_utime;	/* User time */
+	struct __kernel_old_timeval pr_stime;	/* System time */
+	struct __kernel_old_timeval pr_cutime;	/* Cumulative user time */
+	struct __kernel_old_timeval pr_cstime;	/* Cumulative system time */
 #if 0
 	long	pr_instr;		/* Current instruction */
 #endif
-- 
2.9.0



From - Thu Nov 08 21:40:36 2018
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From: Deepa Dinamani <deepa.kernel@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.year-2038,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.oprofile,gmane.linux.ports.sparc
Subject: [PATCH v2 00/10] posix_clocks: Prepare syscalls for 64 bit time_t conversion
Date: Mon, 27 Nov 2017 11:30:27 -0800
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2626312>

The series is a preparation series for individual architectures
to use 64 bit time_t syscalls in compat and 32 bit emulation modes.

This is a follow up to the series Arnd Bergmann posted:
https://sourceware.org/ml/libc-alpha/2015-05/msg00070.html [1]

Big picture is as per the lwn article:
https://lwn.net/Articles/643234/ [2]

The series is directed at converting posix clock syscalls:
clock_gettime, clock_settime, clock_getres and clock_nanosleep
to use a new data structure __kernel_timespec at syscall boundaries.
__kernel_timespec maintains 64 bit time_t across all execution modes.

vdso will be handled as part of each architecture when they enable
support for 64 bit time_t.

The compat syscalls are repurposed to provide backward compatibility
by using them as native syscalls as well for 32 bit architectures.
They will continue to use timespec at syscall boundaries.

CONFIG_64_BIT_TIME controls whether the syscalls use __kernel_timespec
or timespec at syscall boundaries.

The series does the following:
1. Enable compat syscalls on 32 bit architectures.
2. Add a new __kernel_timespec type to be used as the data structure
   for all the new syscalls.
3. Add new config CONFIG_64BIT_TIME(intead of the CONFIG_COMPAT_TIME in
   [1] and [2] to switch to new definition of __kernel_timespec. It is
   the same as struct timespec otherwise.
4. Add new CONFIG_32BIT_TIME to conditionally compile compat syscalls.

* Changes since v1:
 * Introduce CONFIG_32BIT_TIME
 * Fixed zeroing out of higher order bits of tv_nsec
 * Included Arnd's changes to fix up use of compat headers

I decided against using LEGACY_TIME_SYSCALLS to conditionally compile
legacy time syscalls such as sys_nanosleep because this will need to
enclose compat_sys_nanosleep as well. So, defining it as 

config LEGACY_TIME_SYSCALLS
     def_bool 64BIT || !64BIT_TIME

will not include compat_sys_nanosleep. We will instead need a new config to
exclusively mark legacy syscalls.

Deepa Dinamani (10):
  compat: Make compat helpers independent of CONFIG_COMPAT
  include: Move compat_timespec/ timeval to compat_time.h
  compat: enable compat_get/put_timespec64 always
  arch: introduce CONFIG_64BIT_TIME
  arch: Introduce CONFIG_COMPAT_32BIT_TIME
  posix-clocks: Make compat syscalls depend on CONFIG_COMPAT_32BIT_TIME
  include: Add new y2038 safe __kernel_timespec
  fix get_timespec64() for y2038 safe compat interfaces
  change time types to new y2038 safe __kernel_* types
  nanosleep: change time types to safe __kernel_* types

 arch/Kconfig                           | 18 +++++++
 arch/arm64/include/asm/compat.h        | 11 ----
 arch/arm64/include/asm/stat.h          |  1 +
 arch/arm64/kernel/hw_breakpoint.c      |  1 -
 arch/arm64/kernel/perf_regs.c          |  2 +-
 arch/arm64/kernel/process.c            |  1 -
 arch/mips/include/asm/compat.h         | 11 ----
 arch/mips/kernel/signal32.c            |  2 +-
 arch/parisc/include/asm/compat.h       | 11 ----
 arch/powerpc/include/asm/compat.h      | 11 ----
 arch/powerpc/kernel/asm-offsets.c      |  2 +-
 arch/powerpc/oprofile/backtrace.c      |  2 +-
 arch/s390/hypfs/hypfs_sprp.c           |  1 -
 arch/s390/include/asm/compat.h         | 11 ----
 arch/s390/include/asm/elf.h            |  3 +-
 arch/s390/kvm/priv.c                   |  1 -
 arch/s390/pci/pci_clp.c                |  1 -
 arch/sparc/include/asm/compat.h        | 11 ----
 arch/tile/include/asm/compat.h         | 11 ----
 arch/x86/events/core.c                 |  2 +-
 arch/x86/include/asm/compat.h          | 11 ----
 arch/x86/include/asm/ftrace.h          |  2 +-
 arch/x86/include/asm/sys_ia32.h        |  2 +-
 arch/x86/kernel/sys_x86_64.c           |  2 +-
 drivers/s390/block/dasd_ioctl.c        |  1 -
 drivers/s390/char/fs3270.c             |  1 -
 drivers/s390/char/sclp_ctl.c           |  1 -
 drivers/s390/char/vmcp.c               |  1 -
 drivers/s390/cio/chsc_sch.c            |  1 -
 drivers/s390/net/qeth_core_main.c      |  2 +-
 drivers/staging/pi433/pi433_if.c       |  2 +-
 include/linux/compat.h                 | 11 ++--
 include/linux/compat_time.h            | 23 +++++++++
 include/linux/restart_block.h          |  7 +--
 include/linux/syscalls.h               | 12 ++---
 include/linux/time.h                   |  4 +-
 include/linux/time64.h                 | 10 +++-
 include/uapi/asm-generic/posix_types.h |  1 +
 include/uapi/linux/time.h              |  7 +++
 kernel/Makefile                        |  2 +-
 kernel/compat.c                        | 92 ++++++++++++++++++----------------
 kernel/time/hrtimer.c                  | 10 ++--
 kernel/time/posix-stubs.c              | 12 +++--
 kernel/time/posix-timers.c             | 24 ++++++---
 kernel/time/time.c                     | 10 +++-
 45 files changed, 175 insertions(+), 190 deletions(-)
 create mode 100644 include/linux/compat_time.h

base-commit: b0a84f19a5161418d4360cd57603e94ed489915e
-- 
2.14.1

Cc: acme@kernel.org
Cc: benh@kernel.crashing.org
Cc: borntraeger@de.ibm.com
Cc: catalin.marinas@arm.com
Cc: cmetcalf@mellanox.com
Cc: cohuck@redhat.com
Cc: davem@davemloft.net
Cc: deller@gmx.de
Cc: devel@driverdev.osuosl.org
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Subject: [PATCH v2 02/10] include: Move compat_timespec/ timeval to compat_time.h
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Xref: news.gmane.org gmane.linux.kernel:2626314 gmane.linux.kernel.year-2038:2355 gmane.linux.ports.mips.general:62333 gmane.linux.ports.parisc:28016 gmane.linux.ports.ppc64.devel:150596 gmane.linux.oprofile:13115 gmane.linux.ports.sparc:26923
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2626314>

All the current architecture specific defines for these
are the same. Refactor these common defines to a common
header file.

The new common linux/compat_time.h is also useful as it
will eventually be used to hold all the defines that
are needed for compat time types that support non y2038
safe types. New architectures need not have to define these
new types as they will only use new y2038 safe syscalls.
This file can be deleted after y2038 when we stop supporting
non y2038 safe syscalls.

The patch also requires an operation similar to:

git grep "asm/compat\.h" | cut -d ":" -f 1 |  xargs -n 1 sed -i -e "s%asm/compat.h%linux/compat.h%g"

Cc: acme@kernel.org
Cc: benh@kernel.crashing.org
Cc: borntraeger@de.ibm.com
Cc: catalin.marinas@arm.com
Cc: cmetcalf@mellanox.com
Cc: cohuck@redhat.com
Cc: davem@davemloft.net
Cc: deller@gmx.de
Cc: devel@driverdev.osuosl.org
Cc: gerald.schaefer@de.ibm.com
Cc: gregkh@linuxfoundation.org
Cc: heiko.carstens@de.ibm.com
Cc: hoeppner@linux.vnet.ibm.com
Cc: hpa@zytor.com
Cc: jejb@parisc-linux.org
Cc: jwi@linux.vnet.ibm.com
Cc: linux-kernel@vger.kernel.org
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Cc: mingo@redhat.com
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Cc: oberpar@linux.vnet.ibm.com
Cc: oprofile-list@lists.sf.net
Cc: paulus@samba.org
Cc: peterz@infradead.org
Cc: ralf@linux-mips.org
Cc: rostedt@goodmis.org
Cc: rric@kernel.org
Cc: schwidefsky@de.ibm.com
Cc: sebott@linux.vnet.ibm.com
Cc: sparclinux@vger.kernel.org
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Cc: will.deacon@arm.com
Cc: x86@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 arch/arm64/include/asm/compat.h   | 11 -----------
 arch/arm64/include/asm/stat.h     |  1 +
 arch/arm64/kernel/hw_breakpoint.c |  1 -
 arch/arm64/kernel/perf_regs.c     |  2 +-
 arch/arm64/kernel/process.c       |  1 -
 arch/mips/include/asm/compat.h    | 11 -----------
 arch/mips/kernel/signal32.c       |  2 +-
 arch/parisc/include/asm/compat.h  | 11 -----------
 arch/powerpc/include/asm/compat.h | 11 -----------
 arch/powerpc/kernel/asm-offsets.c |  2 +-
 arch/powerpc/oprofile/backtrace.c |  2 +-
 arch/s390/hypfs/hypfs_sprp.c      |  1 -
 arch/s390/include/asm/compat.h    | 11 -----------
 arch/s390/include/asm/elf.h       |  3 +--
 arch/s390/kvm/priv.c              |  1 -
 arch/s390/pci/pci_clp.c           |  1 -
 arch/sparc/include/asm/compat.h   | 11 -----------
 arch/tile/include/asm/compat.h    | 11 -----------
 arch/x86/events/core.c            |  2 +-
 arch/x86/include/asm/compat.h     | 11 -----------
 arch/x86/include/asm/ftrace.h     |  2 +-
 arch/x86/include/asm/sys_ia32.h   |  2 +-
 arch/x86/kernel/sys_x86_64.c      |  2 +-
 drivers/s390/block/dasd_ioctl.c   |  1 -
 drivers/s390/char/fs3270.c        |  1 -
 drivers/s390/char/sclp_ctl.c      |  1 -
 drivers/s390/char/vmcp.c          |  1 -
 drivers/s390/cio/chsc_sch.c       |  1 -
 drivers/s390/net/qeth_core_main.c |  2 +-
 drivers/staging/pi433/pi433_if.c  |  2 +-
 include/linux/compat.h            |  1 +
 include/linux/compat_time.h       | 19 +++++++++++++++++++
 32 files changed, 32 insertions(+), 110 deletions(-)
 create mode 100644 include/linux/compat_time.h

diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index a3c7f271ad4c..977b5064afc1 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -34,7 +34,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -66,16 +65,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 #ifdef __AARCH64EB__
 	short		st_dev;
diff --git a/arch/arm64/include/asm/stat.h b/arch/arm64/include/asm/stat.h
index 15e35598ac40..eab738019707 100644
--- a/arch/arm64/include/asm/stat.h
+++ b/arch/arm64/include/asm/stat.h
@@ -20,6 +20,7 @@
 
 #ifdef CONFIG_COMPAT
 
+#include <linux/compat_time.h>
 #include <asm/compat.h>
 
 /*
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index 749f81779420..bfa2b78cf0e3 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -29,7 +29,6 @@
 #include <linux/ptrace.h>
 #include <linux/smp.h>
 
-#include <asm/compat.h>
 #include <asm/current.h>
 #include <asm/debug-monitors.h>
 #include <asm/hw_breakpoint.h>
diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c
index 1d091d048d04..929fc369d0be 100644
--- a/arch/arm64/kernel/perf_regs.c
+++ b/arch/arm64/kernel/perf_regs.c
@@ -5,7 +5,7 @@
 #include <linux/bug.h>
 #include <linux/sched/task_stack.h>
 
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/perf_regs.h>
 #include <asm/ptrace.h>
 
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index b2adcce7bc18..1acb3097d35b 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -52,7 +52,6 @@
 #include <linux/thread_info.h>
 
 #include <asm/alternative.h>
-#include <asm/compat.h>
 #include <asm/cacheflush.h>
 #include <asm/exec.h>
 #include <asm/fpsimd.h>
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 49691331ada4..ccbf14e33282 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -14,7 +14,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_suseconds_t;
 
@@ -46,16 +45,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	s32		st_pad1[3];
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index cf5c7c05e5a3..a6b04c70a8cb 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -14,7 +14,7 @@
 #include <linux/signal.h>
 #include <linux/syscalls.h>
 
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/compat-signal.h>
 #include <linux/uaccess.h>
 #include <asm/unistd.h>
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index acf8aa07cbe0..90f844b16beb 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -13,7 +13,6 @@
 
 typedef u32	compat_size_t;
 typedef s32	compat_ssize_t;
-typedef s32	compat_time_t;
 typedef s32	compat_clock_t;
 typedef s32	compat_pid_t;
 typedef u32	__compat_uid_t;
@@ -40,16 +39,6 @@ typedef u32	compat_ulong_t;
 typedef u64	compat_u64;
 typedef u32	compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t		tv_sec;
-	s32			tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t		tv_sec;
-	s32			tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t		st_dev;	/* dev_t is 32 bits on parisc */
 	compat_ino_t		st_ino;	/* 32 bits */
diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
index 8a2aecfe9b02..517dbcfc2240 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -17,7 +17,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u32		__compat_uid_t;
@@ -45,16 +44,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	compat_ino_t	st_ino;
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 6b958414b4e0..a25cbe6482e2 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -42,7 +42,7 @@
 #include <asm/paca.h>
 #include <asm/lppaca.h>
 #include <asm/cache.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/mmu.h>
 #include <asm/hvcall.h>
 #include <asm/xics.h>
diff --git a/arch/powerpc/oprofile/backtrace.c b/arch/powerpc/oprofile/backtrace.c
index ecc66d5f02c9..11ff763c03ad 100644
--- a/arch/powerpc/oprofile/backtrace.c
+++ b/arch/powerpc/oprofile/backtrace.c
@@ -11,7 +11,7 @@
 #include <linux/sched.h>
 #include <asm/processor.h>
 #include <linux/uaccess.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/oprofile_impl.h>
 
 #define STACK_SP(STACK)		*(STACK)
diff --git a/arch/s390/hypfs/hypfs_sprp.c b/arch/s390/hypfs/hypfs_sprp.c
index ae0ed8dd5f1b..5d85a039391c 100644
--- a/arch/s390/hypfs/hypfs_sprp.c
+++ b/arch/s390/hypfs/hypfs_sprp.c
@@ -13,7 +13,6 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/uaccess.h>
-#include <asm/compat.h>
 #include <asm/diag.h>
 #include <asm/sclp.h>
 #include "hypfs.h"
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 5e6a63641a5f..7e587eb9fb58 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -53,7 +53,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -97,16 +96,6 @@ typedef struct {
 	u32 gprs_high[NUM_GPRS];
 } s390_compat_regs_high;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	u16		__pad1;
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 1a61b1b997f2..3e15c77c7c9a 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -126,7 +126,7 @@
  */
 
 #include <asm/ptrace.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/syscall.h>
 #include <asm/user.h>
 
@@ -136,7 +136,6 @@ typedef s390_regs elf_gregset_t;
 typedef s390_fp_regs compat_elf_fpregset_t;
 typedef s390_compat_regs compat_elf_gregset_t;
 
-#include <linux/compat.h>
 #include <linux/sched/mm.h>	/* for task_struct */
 #include <asm/mmu_context.h>
 
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index c954ac49eee4..07eebba4bd37 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -29,7 +29,6 @@
 #include <asm/gmap.h>
 #include <asm/io.h>
 #include <asm/ptrace.h>
-#include <asm/compat.h>
 #include <asm/sclp.h>
 #include "gaccess.h"
 #include "kvm-s390.h"
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 93cd0f1ca12b..19b2d2a9b43d 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -19,7 +19,6 @@
 #include <linux/uaccess.h>
 #include <asm/pci_debug.h>
 #include <asm/pci_clp.h>
-#include <asm/compat.h>
 #include <asm/clp.h>
 #include <uapi/asm/clp.h>
 
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index fa38c78de0f0..5b49b6a66cdb 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -11,7 +11,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -39,16 +38,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	compat_ino_t	st_ino;
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index 62a7b83025dd..21ab5b80f5c7 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -29,7 +29,6 @@ typedef u32		compat_ulong_t;
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
 typedef s32		compat_off_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef u32		compat_ino_t;
 typedef u32		compat_caddr_t;
@@ -59,16 +58,6 @@ typedef unsigned long compat_elf_greg_t;
 #define COMPAT_ELF_NGREG (sizeof(struct pt_regs) / sizeof(compat_elf_greg_t))
 typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 #define compat_stat stat
 #define compat_statfs statfs
 
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 140d33288e78..6b8961912781 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2391,7 +2391,7 @@ static unsigned long get_segment_base(unsigned int segment)
 
 #ifdef CONFIG_IA32_EMULATION
 
-#include <asm/compat.h>
+#include <linux/compat.h>
 
 static inline int
 perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry_ctx *entry)
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 2cbd75dd2fd3..160804ed875e 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -17,7 +17,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -46,16 +45,6 @@ typedef u32		compat_u32;
 typedef u64 __attribute__((aligned(4))) compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	u16		__pad1;
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index 09ad88572746..db25aa15b705 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -49,7 +49,7 @@ int ftrace_int3_handler(struct pt_regs *regs);
 #if !defined(__ASSEMBLY__) && !defined(COMPILE_OFFSETS)
 
 #if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_IA32_EMULATION)
-#include <asm/compat.h>
+#include <linux/compat.h>
 
 /*
  * Because ia32 syscalls do not map to x86_64 syscall numbers
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index 82c34ee25a65..8527b26ad36f 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -16,7 +16,7 @@
 #include <linux/linkage.h>
 #include <linux/types.h>
 #include <linux/signal.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/ia32.h>
 
 /* ia32/sys_ia32.c */
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 676774b9bb8d..9d8ea652e31c 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -19,7 +19,7 @@
 #include <linux/elf.h>
 
 #include <asm/elf.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/ia32.h>
 #include <asm/syscalls.h>
 #include <asm/mpx.h>
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 7bdc6aaa0ba3..2016e0ed5865 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -18,7 +18,6 @@
 #include <linux/fs.h>
 #include <linux/blkpg.h>
 #include <linux/slab.h>
-#include <asm/compat.h>
 #include <asm/ccwdev.h>
 #include <asm/schid.h>
 #include <asm/cmb.h>
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 61822480a2a0..16a4e8528bbc 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -19,7 +19,6 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 
-#include <asm/compat.h>
 #include <asm/ccwdev.h>
 #include <asm/cio.h>
 #include <asm/ebcdic.h>
diff --git a/drivers/s390/char/sclp_ctl.c b/drivers/s390/char/sclp_ctl.c
index a78cea0c3a09..248b5db3eaa8 100644
--- a/drivers/s390/char/sclp_ctl.c
+++ b/drivers/s390/char/sclp_ctl.c
@@ -14,7 +14,6 @@
 #include <linux/init.h>
 #include <linux/ioctl.h>
 #include <linux/fs.h>
-#include <asm/compat.h>
 #include <asm/sclp_ctl.h>
 #include <asm/sclp.h>
 
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index 17e411c57576..948ce82a7725 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -23,7 +23,6 @@
 #include <linux/mutex.h>
 #include <linux/cma.h>
 #include <linux/mm.h>
-#include <asm/compat.h>
 #include <asm/cpcmd.h>
 #include <asm/debug.h>
 #include <asm/vmcp.h>
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 0015729d917d..8d9f36625ba5 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -16,7 +16,6 @@
 #include <linux/miscdevice.h>
 #include <linux/kernel_stat.h>
 
-#include <asm/compat.h>
 #include <asm/cio.h>
 #include <asm/chsc.h>
 #include <asm/isc.h>
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 98a7f84540ab..a93591c6c9b0 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -27,7 +27,7 @@
 #include <asm/chpid.h>
 #include <asm/io.h>
 #include <asm/sysinfo.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/diag.h>
 #include <asm/cio.h>
 #include <asm/ccwdev.h>
diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index 2a205c6173dc..473831ff8745 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -48,7 +48,7 @@
 #include <linux/wait.h>
 #include <linux/spi/spi.h>
 #ifdef CONFIG_COMPAT
-#include <asm/compat.h>
+#include <linux/compat.h>
 #endif
 
 #include "pi433_if.h"
diff --git a/include/linux/compat.h b/include/linux/compat.h
index b24aaf66feb4..2f79dac5ed65 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -7,6 +7,7 @@
  */
 
 #include <linux/types.h>
+#include <linux/compat_time.h>
 
 #include <linux/stat.h>
 #include <linux/param.h>	/* for HZ */
diff --git a/include/linux/compat_time.h b/include/linux/compat_time.h
new file mode 100644
index 000000000000..56a54a1e4355
--- /dev/null
+++ b/include/linux/compat_time.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_COMPAT_TIME_H
+#define _LINUX_COMPAT_TIME_H
+
+#include <linux/types.h>
+
+typedef s32		compat_time_t;
+
+struct compat_timespec {
+	compat_time_t	tv_sec;
+	s32		tv_nsec;
+};
+
+struct compat_timeval {
+	compat_time_t	tv_sec;
+	s32		tv_usec;
+};
+
+#endif /* _LINUX_COMPAT_TIME_H */
-- 
2.14.1



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Subject: Re: [PATCH v2 00/10] posix_clocks: Prepare syscalls for 64 bit time_t conversion
Date: Mon, 27 Nov 2017 22:58:36 +0100
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Cc: Thomas Gleixner <tglx@linutronix.de>,
        John Stultz <john.stultz@linaro.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        y2038 Mailman List <y2038@lists.linaro.org>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Christian Borntraeger <borntraeger@de.ibm.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Chris Metcalf <cmetcalf@mellanox.com>, cohuck@redhat.com,
        David Miller <davem@davemloft.net>,
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To: Deepa Dinamani <deepa.kernel@gmail.com>
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On Mon, Nov 27, 2017 at 8:30 PM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
> The series is a preparation series for individual architectures
> to use 64 bit time_t syscalls in compat and 32 bit emulation modes.
>
> This is a follow up to the series Arnd Bergmann posted:
> https://sourceware.org/ml/libc-alpha/2015-05/msg00070.html [1]
>
> Big picture is as per the lwn article:
> https://lwn.net/Articles/643234/ [2]
>
> The series is directed at converting posix clock syscalls:
> clock_gettime, clock_settime, clock_getres and clock_nanosleep
> to use a new data structure __kernel_timespec at syscall boundaries.
> __kernel_timespec maintains 64 bit time_t across all execution modes.
>
> vdso will be handled as part of each architecture when they enable
> support for 64 bit time_t.
>
> The compat syscalls are repurposed to provide backward compatibility
> by using them as native syscalls as well for 32 bit architectures.
> They will continue to use timespec at syscall boundaries.
>
> CONFIG_64_BIT_TIME controls whether the syscalls use __kernel_timespec
> or timespec at syscall boundaries.
>
> The series does the following:
> 1. Enable compat syscalls on 32 bit architectures.
> 2. Add a new __kernel_timespec type to be used as the data structure
>    for all the new syscalls.
> 3. Add new config CONFIG_64BIT_TIME(intead of the CONFIG_COMPAT_TIME in
>    [1] and [2] to switch to new definition of __kernel_timespec. It is
>    the same as struct timespec otherwise.
> 4. Add new CONFIG_32BIT_TIME to conditionally compile compat syscalls.
>
> * Changes since v1:
>  * Introduce CONFIG_32BIT_TIME
>  * Fixed zeroing out of higher order bits of tv_nsec
>  * Included Arnd's changes to fix up use of compat headers

Very nice. I think it would be good to get this into linux-next soon so we
can build on top of this. I have submitted most other y2038 patches today
that don't depend on either this or one of my other patches.

There is one patch that I want to do but haven't imlpemented yet, to merge
get_timespec64() and compat_get_timespec() into one function that
take a bunch of flags (check nanosecond, nano/microsecond,
zero upper half of nanoseconds, 32-bit or 64-bit wide), since I found
a few functions that need more than one of these, and they don't
all need the same combinations. My patch will certainly conflict
with yours, as your touch the same functions, but that's fine.

If you end up doing another version of the series though, it might
be better to move the compat accessors into kernel/time/time.c
along with the native functions, that should make it easier to
consolidate them later.

> I decided against using LEGACY_TIME_SYSCALLS to conditionally compile
> legacy time syscalls such as sys_nanosleep because this will need to
> enclose compat_sys_nanosleep as well. So, defining it as
>
> config LEGACY_TIME_SYSCALLS
>      def_bool 64BIT || !64BIT_TIME
>
> will not include compat_sys_nanosleep. We will instead need a new config to
> exclusively mark legacy syscalls.

Do you mean we would need to do this separately for native and compat
syscalls, and have yet another option, like LEGACY_TIME_SYSCALLS
and LEGACY_TIME_COMPAT_SYSCALLS, to cover all cases? I would
think that CONFIG_COMPAT_32BIT_TIME handles all the compat versions,
while CONFIG_LEGACY_TIME_SYSCALLS handles all the native ones.

       Arnd


From - Thu Nov 08 21:40:37 2018
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Subject: Re: [PATCH v2 00/10] posix_clocks: Prepare syscalls for 64 bit time_t conversion
Date: Mon, 27 Nov 2017 14:29:59 -0800
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Cc: Thomas Gleixner <tglx@linutronix.de>,
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        "H. Peter Anvin" <hpa@zytor.com>,
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        Julian Wiedmann
To: Arnd Bergmann <arnd@arndb.de>
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>> I decided against using LEGACY_TIME_SYSCALLS to conditionally compile
>> legacy time syscalls such as sys_nanosleep because this will need to
>> enclose compat_sys_nanosleep as well. So, defining it as
>>
>> config LEGACY_TIME_SYSCALLS
>>      def_bool 64BIT || !64BIT_TIME
>>
>> will not include compat_sys_nanosleep. We will instead need a new config to
>> exclusively mark legacy syscalls.
>
> Do you mean we would need to do this separately for native and compat
> syscalls, and have yet another option, like LEGACY_TIME_SYSCALLS
> and LEGACY_TIME_COMPAT_SYSCALLS, to cover all cases? I would
> think that CONFIG_COMPAT_32BIT_TIME handles all the compat versions,
> while CONFIG_LEGACY_TIME_SYSCALLS handles all the native ones.

I meant sys_nanosleep would be covered by LEGACY_TIME_SYSCALLS, but
compat_sys_nanosleep would be covered by CONFIG_COMPAT_32BIT_TIME
along with other compat syscalls.
So, if we define the LEGACY_TIME_SYSCALLS as


        "This controls the compilation of the following system calls:
        time, stime, gettimeofday, settimeofday, adjtimex, nanosleep,
alarm, getitimer,
        setitimer, select, utime, utimes, futimesat, and
{old,new}{l,f,}stat{,64}.
        These all pass 32-bit time_t arguments on 32-bit architectures and
        are replaced by other interfaces (e.g. posix timers and clocks, statx).
        C libraries implementing 64-bit time_t in 32-bit architectures have to
        implement the handles by wrapping around the newer interfaces.
        New architectures should not explicitly enable this."

This would not be really true as compat interfaces have nothing to do
with this config.

I was proposing that we could have LEGACY_TIME_SYSCALLS config, but
then have all these "deprecated" syscalls be enclosed within this,
compat or not.
This will also mean that we will have to come up representing these
syscalls in the syscall header files.
This can be a separate patch and this series can be merged as is if
everyone agrees.

-Deepa


From - Thu Nov 08 21:40:37 2018
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel,gmane.linux.kernel.year-2038,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.oprofile
Subject: Re: [PATCH v2 00/10] posix_clocks: Prepare syscalls for 64 bit time_t conversion
Date: Tue, 28 Nov 2017 15:17:26 +0100
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Cc: Thomas Gleixner <tglx@linutronix.de>,
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        "H. Peter Anvin" <hpa@zytor.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Julian Wiedmann
To: Deepa Dinamani <deepa.kernel@gmail.com>
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On Mon, Nov 27, 2017 at 11:29 PM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
>>> I decided against using LEGACY_TIME_SYSCALLS to conditionally compile
>>> legacy time syscalls such as sys_nanosleep because this will need to
>>> enclose compat_sys_nanosleep as well. So, defining it as
>>>
>>> config LEGACY_TIME_SYSCALLS
>>>      def_bool 64BIT || !64BIT_TIME
>>>
>>> will not include compat_sys_nanosleep. We will instead need a new config to
>>> exclusively mark legacy syscalls.
>>
>> Do you mean we would need to do this separately for native and compat
>> syscalls, and have yet another option, like LEGACY_TIME_SYSCALLS
>> and LEGACY_TIME_COMPAT_SYSCALLS, to cover all cases? I would
>> think that CONFIG_COMPAT_32BIT_TIME handles all the compat versions,
>> while CONFIG_LEGACY_TIME_SYSCALLS handles all the native ones.
>
> I meant sys_nanosleep would be covered by LEGACY_TIME_SYSCALLS, but
> compat_sys_nanosleep would be covered by CONFIG_COMPAT_32BIT_TIME
> along with other compat syscalls.
> So, if we define the LEGACY_TIME_SYSCALLS as
>
>
>         "This controls the compilation of the following system calls:
>         time, stime, gettimeofday, settimeofday, adjtimex, nanosleep,
> alarm, getitimer,
>         setitimer, select, utime, utimes, futimesat, and
> {old,new}{l,f,}stat{,64}.
>         These all pass 32-bit time_t arguments on 32-bit architectures and
>         are replaced by other interfaces (e.g. posix timers and clocks, statx).
>         C libraries implementing 64-bit time_t in 32-bit architectures have to
>         implement the handles by wrapping around the newer interfaces.
>         New architectures should not explicitly enable this."
>
> This would not be really true as compat interfaces have nothing to do
> with this config.
>
> I was proposing that we could have LEGACY_TIME_SYSCALLS config, but
> then have all these "deprecated" syscalls be enclosed within this,
> compat or not.
> This will also mean that we will have to come up representing these
> syscalls in the syscall header files.
> This can be a separate patch and this series can be merged as is if
> everyone agrees.

I think doing this separately  would be good, I don't see any interdependency
with the other patches, we just need to decide what we want in the long
run.

I agree my text that you cited doesn't capture the situation correctly,
as this is really about the obsolete system calls that take 64-bit time_t
arguments on architectures that are converted to allow 64-bit time_t
for non-obsolete system calls.

Maybe it's better to just reword this to

      "This controls the compilation of the following system calls:
      time, stime, gettimeofday, settimeofday, adjtimex, nanosleep,
alarm, getitimer,
      setitimer, select, utime, utimes, futimesat, and {old,new}{l,f,}stat{,64}.
      These are all replaced by other interfaces (e.g. posix timers and clocks,
      statx) on architectures that got converted from 32-bit time_t to
64-bit time_t.
      C libraries implementing 64-bit time_t in 32-bit architectures have to
      implement the handles by wrapping around the newer interfaces.
      New architectures should not explicitly enable this."

That would clarify that it's not about the compat system calls, while
also allowing the two options to be set independently.

        Arnd
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From - Thu Nov 08 21:40:37 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.ports.ia64,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCHv4 5/6] symbol lookup: introduce
 dereference_symbol_descriptor()
Date: Tue, 28 Nov 2017 16:44:57 +0100
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References: <20171109234830.5067-1-sergey.senozhatsky@gmail.com>
 <20171109234830.5067-6-sergey.senozhatsky@gmail.com>
 <20171110180931.xhhi35osclzceba2@agluck-desk>
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Cc: "Luck, Tony" <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        James Bottomley <jejb@parisc-linux.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
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        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
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On Sat 2017-11-11 13:49:32, Sergey Senozhatsky wrote:
> On (11/10/17 10:09), Luck, Tony wrote:
> > On Fri, Nov 10, 2017 at 08:48:29AM +0900, Sergey Senozhatsky wrote:
> > > -Examples::
> > > -
> > > -	printk("Going to call: %pF\n", gettimeofday);
> > > -	printk("Going to call: %pF\n", p->func);
> > > -	printk("%s: called from %pS\n", __func__, (void *)_RET_IP_);
> > > -	printk("%s: called from %pS\n", __func__,
> > > -				(void *)__builtin_return_address(0));
> > > -	printk("Faulted at %pS\n", (void *)regs->ip);
> > > -	printk(" %s%pB\n", (reliable ? "" : "? "), (void *)*stack);
> > 
> > Did you mean to delete the Examples completely?  Wouldn't it
> > be better to just update (s/%pF/%pS/g)?
> 
> good question. yes, I think I did it deliberately :) we still
> kinda have some sort of "examples", right at the beginning of
> section "Symbols/Function Pointers"

These extra examples were added just recently (v4.14-rc1)
by the commit fd46cd55fbc5a8e8c ("printk-formats.txt: Add examples
for %pF and %pS usage"). They were supposed to help using
%pF and %pS correctly according to the situation. But we
have a better solution now. %pF is obsoleted by this
patchset.

IMHO, it is perfectly fine to remove the extra examples.

Best Regards,
Petr
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From - Thu Nov 08 21:40:37 2018
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From: Petr Mladek <pmladek@suse.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCHv4 0/6] printk/ia64/ppc64/parisc64: let's deprecate
 %pF/%pf printk specifiers
Date: Tue, 28 Nov 2017 16:47:10 +0100
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On Fri 2017-11-10 08:48:24, Sergey Senozhatsky wrote:
> 	Hello,
> 
> 	A reworked version. There is a new dereference_symbol_descriptor()
> function now, where "the magic happens", so I don't touch kallsyms_lookup()
> and module_address_lookup() anymore.

The new version looks good to me. Thanks a lot for reworking it.
I feel much better now. For the whole series:

Reviewed-by: Petr Mladek <pmladek@suse.com>

> 	All Ack-s/Tested-by-s were dropped, since the patch set has been
> reworked. I'm kindly asking arch-s maintainers and developers to test it
> once again. Sorry for any inconveniences and thanks for your help in
> advance.

I see that it was tested on all affected architectures. Thanks a lot
all testers.

It seems that we are ready to go. I am going to push this into
for-4.16 branch in printk.git.

Best Regards,
Petr
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From: Deepa Dinamani <deepa.kernel@gmail.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.year-2038,gmane.linux.kernel.api,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.oprofile,gmane.linux.ports.sparc
Subject: Re: [PATCH v2 00/10] posix_clocks: Prepare syscalls for 64 bit time_t conversion
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On Tue, Nov 28, 2017 at 6:17 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Mon, Nov 27, 2017 at 11:29 PM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
>>>> I decided against using LEGACY_TIME_SYSCALLS to conditionally compile
>>>> legacy time syscalls such as sys_nanosleep because this will need to
>>>> enclose compat_sys_nanosleep as well. So, defining it as
>>>>
>>>> config LEGACY_TIME_SYSCALLS
>>>>      def_bool 64BIT || !64BIT_TIME
>>>>
>>>> will not include compat_sys_nanosleep. We will instead need a new config to
>>>> exclusively mark legacy syscalls.
>>>
>>> Do you mean we would need to do this separately for native and compat
>>> syscalls, and have yet another option, like LEGACY_TIME_SYSCALLS
>>> and LEGACY_TIME_COMPAT_SYSCALLS, to cover all cases? I would
>>> think that CONFIG_COMPAT_32BIT_TIME handles all the compat versions,
>>> while CONFIG_LEGACY_TIME_SYSCALLS handles all the native ones.
>>
>> I meant sys_nanosleep would be covered by LEGACY_TIME_SYSCALLS, but
>> compat_sys_nanosleep would be covered by CONFIG_COMPAT_32BIT_TIME
>> along with other compat syscalls.
>> So, if we define the LEGACY_TIME_SYSCALLS as
>>
>>
>>         "This controls the compilation of the following system calls:
>>         time, stime, gettimeofday, settimeofday, adjtimex, nanosleep,
>> alarm, getitimer,
>>         setitimer, select, utime, utimes, futimesat, and
>> {old,new}{l,f,}stat{,64}.
>>         These all pass 32-bit time_t arguments on 32-bit architectures and
>>         are replaced by other interfaces (e.g. posix timers and clocks, statx).
>>         C libraries implementing 64-bit time_t in 32-bit architectures have to
>>         implement the handles by wrapping around the newer interfaces.
>>         New architectures should not explicitly enable this."
>>
>> This would not be really true as compat interfaces have nothing to do
>> with this config.
>>
>> I was proposing that we could have LEGACY_TIME_SYSCALLS config, but
>> then have all these "deprecated" syscalls be enclosed within this,
>> compat or not.
>> This will also mean that we will have to come up representing these
>> syscalls in the syscall header files.
>> This can be a separate patch and this series can be merged as is if
>> everyone agrees.
>
> I think doing this separately  would be good, I don't see any interdependency
> with the other patches, we just need to decide what we want in the long
> run.

Right. There are three options:

1. Use two configs to identify which syscalls need not be supported by
new architectures.
In this case it makes sense to say LEGACY_TIME_SYSCALLS and
COMPAT_32BIT_TIME both need to be disabled for new architectures. And,
I can reword the config to what you mention below.

2. Make the LEGACY_TIME_SYSCALLS eliminate non y2038 safe syscalls
mentioned below only.
In this case only the native and compat functions of the below
mentioned syscalls need to be identified by the config. I like this
option as this clearly identifies which syscalls are deprecated and do
not have a 64 bit counterpart. Not all architectures need to support
turning this off.

3. If we don't need either 1 or 2, then we could stick with what we
have today in the series as CONFIG_64BIT_TIME will be deleted and they
only need #ifdef CONFIG_64BIT.

Let me know if anyone prefers something else.

> I agree my text that you cited doesn't capture the situation correctly,
> as this is really about the obsolete system calls that take 64-bit time_t
> arguments on architectures that are converted to allow 64-bit time_t
> for non-obsolete system calls.
>
> Maybe it's better to just reword this to
>
>       "This controls the compilation of the following system calls:
>       time, stime, gettimeofday, settimeofday, adjtimex, nanosleep,
> alarm, getitimer,
>       setitimer, select, utime, utimes, futimesat, and {old,new}{l,f,}stat{,64}.
>       These are all replaced by other interfaces (e.g. posix timers and clocks,
>       statx) on architectures that got converted from 32-bit time_t to
> 64-bit time_t.
>       C libraries implementing 64-bit time_t in 32-bit architectures have to
>       implement the handles by wrapping around the newer interfaces.
>       New architectures should not explicitly enable this."
>
> That would clarify that it's not about the compat system calls, while
> also allowing the two options to be set independently.

-Deepa
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCHv4 0/6] printk/ia64/ppc64/parisc64: let's deprecate
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Date: Wed, 29 Nov 2017 16:24:58 +0900
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To: Petr Mladek <pmladek@suse.com>
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On (11/28/17 16:47), Petr Mladek wrote:
> On Fri 2017-11-10 08:48:24, Sergey Senozhatsky wrote:
> > 	Hello,
> > 
> > 	A reworked version. There is a new dereference_symbol_descriptor()
> > function now, where "the magic happens", so I don't touch kallsyms_lookup()
> > and module_address_lookup() anymore.
> 
> The new version looks good to me. Thanks a lot for reworking it.
> I feel much better now. For the whole series:
> 
> Reviewed-by: Petr Mladek <pmladek@suse.com>
> 
> > 	All Ack-s/Tested-by-s were dropped, since the patch set has been
> > reworked. I'm kindly asking arch-s maintainers and developers to test it
> > once again. Sorry for any inconveniences and thanks for your help in
> > advance.
> 
> I see that it was tested on all affected architectures. Thanks a lot
> all testers.
> 
> It seems that we are ready to go. I am going to push this into
> for-4.16 branch in printk.git.

thanks.

	-ss


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Subject: Re: [PATCH v2 00/10] posix_clocks: Prepare syscalls for 64 bit time_t conversion
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        John Stultz <john.stultz@linaro.org>,
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On Wed, Nov 29, 2017 at 12:17 AM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
> On Tue, Nov 28, 2017 at 6:17 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>> On Mon, Nov 27, 2017 at 11:29 PM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
> Right. There are three options:
>
> 1. Use two configs to identify which syscalls need not be supported by
> new architectures.
> In this case it makes sense to say LEGACY_TIME_SYSCALLS and
> COMPAT_32BIT_TIME both need to be disabled for new architectures. And,
> I can reword the config to what you mention below.
>
> 2. Make the LEGACY_TIME_SYSCALLS eliminate non y2038 safe syscalls
> mentioned below only.
> In this case only the native and compat functions of the below
> mentioned syscalls need to be identified by the config. I like this
> option as this clearly identifies which syscalls are deprecated and do
> not have a 64 bit counterpart. Not all architectures need to support
> turning this off.
>
> 3. If we don't need either 1 or 2, then we could stick with what we
> have today in the series as CONFIG_64BIT_TIME will be deleted and they
> only need #ifdef CONFIG_64BIT.
>
> Let me know if anyone prefers something else.

I think I prefer to have both LEGACY_TIME_SYSCALLS to guard
the native deprecated syscalls (disabled on 32-bit architectures after
the conversion, and enabled on 64-bit architectures until
we merge the next one), and COMPAT_32BIT_TIME to guard the
compat versions of both the deprecated and the non-deprecated
syscalls (enabled on all existing 32-bit architectures after the
conversion, and on 64-bit architectures if they provide a compat
mode for the former).

Those two are not symmetric, but I think those are the most
common combinations, and the Kconfig symbol helps document
what they are.

There is one more category for things like io_getevents() and
rt_sigtimedwait that also need two separate compat versions,
one for 32-bit time_t and one for 64-bit time_t, but it seems better
to deal with those case-by-case rather than introducing another
Kconfig symbol.

        Arnd
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Fails early, probably in palo.  I don't have a boot log as the machine has a graphics console.

ii  linux-image-4.13.0-1-parisc64-smp          4.13.13-1     hppa         Linux 4.13 for multiprocessor 64-bit PA-RISC
ii  linux-image-4.14.0-1-parisc64-smp          4.14.2-1      hppa         Linux 4.14 for multiprocessor 64-bit PA-RISC

The 4.13.13-1 kernel boots okay.

root@hiauly6:/var/log# dpkg -l palo
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                               Version                Architecture           Description
+++-==================================-======================-======================-=========================================================================
ii  palo                               1.99                   hppa                   Linux boot loader for HP PA-RISC

Dave
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John David Anglin	dave.anglin@bell.net



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On 03.12.2017 17:54, John David Anglin wrote:
> Fails early, probably in palo.  I don't have a boot log as the machine has a graphics console.
> 
> ii  linux-image-4.13.0-1-parisc64-smp          4.13.13-1     hppa         Linux 4.13 for multiprocessor 64-bit PA-RISC
> ii  linux-image-4.14.0-1-parisc64-smp          4.14.2-1      hppa         Linux 4.14 for multiprocessor 64-bit PA-RISC
> 
> The 4.13.13-1 kernel boots okay.
> 
> root@hiauly6:/var/log# dpkg -l palo
> ii  palo                               1.99                   hppa                   Linux boot loader for HP PA-RISC


Strange.
It works nicely for me on my C3700 machine:


palo ipl 1.99 http://www.parisc-linux.org - Fri, 18 Aug 2017 11:50:44 +0200
Skipping extended partition 6 - beyond reach of IPL

Partition Start(MB) End(MB) Id Type
1               2      33   f0 Palo
2              34     157   83 ext2
5             159   134887   83 ext2

PALO(F0) partition contains:
    0/vmlinux64 18847280(0) bytes @ 0x140000

Information: No console specified on kernel command line. This is normal.
PALO will choose the console currently used by firmware (serial).
Command line for kernel: 'root=LABEL=ROOT rootfstype=ext4 HOME=/ panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux'
Selected kernel: /vmlinux from partition 2
Selected ramdisk: /initrd.img from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 5
Segment 0 load 00100000 size 463104 mediaptr 0x1000
Segment 1 load 00172000 size 210976 mediaptr 0x73000
Segment 2 load 00200000 size 10634416 mediaptr 0xa7000
Segment 3 load 00c25000 size 3194732 mediaptr 0xacc000
Segment 4 load 01000000 size 2631320 mediaptr 0xdd8000
Loading ramdisk 21583160 bytes @ 3eb59000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

[    0.000000] Linux version 4.14.0-1-parisc64-smp (debian-kernel@lists.debian.org) (gcc version 7.2.0 (GCC)) #1 SMP Debian 4.14.2-1 (2017-11-30)
[    0.000000] unwind_init: start = 0x40ed19cc, end = 0x40f30f6c, entries = 24410
[    0.000000] FP[0] enabled: Rev 1 Model 19
[    0.000000] The 64-bit Kernel has started...
[    0.000000] Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size.
[    0.000000] bootconsole [ttyB0] enabled
[    0.000000] Initialized PDC Console for debugging.
[    0.000000] Determining PDC firmware type: System Map.
[    0.000000] model 00005dc0 00000481 00000000 00000002 777c3e84 100000f0 00000008 000000b2 000000b2
[    0.000000] random: fast init done
[    0.000000] vers  00000301
[    0.000000] CPUID vers 19 rev 11 (0x0000026b)
[    0.000000] capabilities 0x7
[    0.000000] model 9000/785/C3700
[    0.000000] Memory Ranges:
[    0.000000]  0) Start 0x0000000000000000 End 0x000000007fffffff Size   2048 MB
[    0.000000] Total Memory: 2048 MB
[    0.000000] initrd: 7eb59000-7ffee538
[    0.000000] initrd: reserving 3eb59000-3ffee538 (mem_max 80000000)
[    0.000000] PDT: type PDT_PDC, size 50, entries 0, status 2, dbe_loc 0xffffffffffffffff, good_mem 30 MB
[    0.000000] PDT: Firmware reports all memory OK.
[    0.000000] LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
[    0.000000] percpu: Embedded 27 pages/cpu @00000000bdf25000 s71712 r8192 d30688 u110592
[    0.000000] SMP: bootstrap CPU ID is 0
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 516096
[    0.000000] Kernel command line: root=LABEL=ROOT rootfstype=ext4 HOME=/ panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[    0.000000] Memory: 2016828K/2097152K available (10388K kernel code, 4294K rwdata, 1376K rodata, 1024K init, 848K bss, 80324K reserved, 0K cma-re)
[    0.000000] virtual kernel memory layout:
    0.000000]     vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    0.000000]     memory  : 0x0000000040000000 - 0x00000000c0000000   (2048 MB)
    0.000000]       .init : 0x0000000040100000 - 0x0000000040200000   (1024 kB)
    0.000000]       .data : 0x0000000040c25000 - 0x00000000411aeae0   (5670 kB)
    0.000000]       .text : 0x0000000040200000 - 0x0000000040c25000   (10388 kB)
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS: 128
[    0.000011] sched_clock: 64 bits at 750MHz, resolution 1ns, wraps every 4398046511103ns
[    0.105387] Console: colour dummy device 160x64
[    0.164070] Calibrating delay loop... 1494.01 BogoMIPS (lpj=2988032)
[    0.268015] pid_max: default: 32768 minimum: 301
[    0.332805] Security Framework initialized
[    0.384023] Yama: disabled by default; enable with sysctl kernel.yama.*
[    0.472195] AppArmor: AppArmor initialized
[    0.528261] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
[    0.616096] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
[    0.714533] Hierarchical SRCU implementation.
[    0.773725] smp: Bringing up secondary CPUs ...
[    0.832023] smp: Brought up 1 node, 1 CPU
[    0.888943] devtmpfs: initialized
[    0.934735] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    1.060069] futex hash table entries: 2048 (order: 4, 65536 bytes)
[    1.146496] NET: Registered protocol family 16
[    1.205279] EISA bus registered
[    1.248220] Searching for devices...
[    1.524013] Found devices:
[    1.560030] 1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b }
[    1.668024] 2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a }
[    1.776024] 3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a }
[    1.880067] 4. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a }
[    1.988029] 5. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a }
[    2.096025] 6. Allegro W2 at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5dc, 0x00004 }
[    2.192032] 7. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09c, 0x00009 }
[    2.284022] Enabling regular chassis codes support v0.05
[    2.484589] CPU(s): 1 out of 1 PA8700 (PCX-W2) at 750.000000 MHz online
[    2.579703] Cache flush threshold set to 656 KiB
[    2.642776] TLB flush threshold set to 40 KiB
[    2.728384] SBA found Astro 2.1 at 0xfffffffffed00000
[    2.796089] Elroy version TR4.0 (0x5) found at 0xfffffffffed30000
[    2.876889] LBA 10:0: PCI host bridge to bus 0000:00
[    2.940077] pci_bus 0000:00: root bus resource [io  0x0000-0x1fff]
[    3.024025] pci_bus 0000:00: root bus resource [mem 0xfffffffff4000000-0xfffffffff47fffff] (bus address [0xf4000000-0xf47fffff])
[    3.176030] pci_bus 0000:00: root bus resource [bus 00]
[    3.246230] PCI: Enabled native mode for NS87415 (pif=0x8f)
[    3.325864] Elroy version TR4.0 (0x5) found at 0xfffffffffed32000
[    3.404350] LBA 10:1: PCI host bridge to bus 0000:01
[    3.468034] pci_bus 0000:01: root bus resource [io  0x12000-0x13fff] (bus address [0x2000-0x3fff])
[    3.588028] pci_bus 0000:01: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff])
[    3.740027] pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff])
[    3.892075] pci_bus 0000:01: root bus resource [bus 01]
[    3.964261] iosapic: hpa not registered for 0000:01:04.0
[    4.032386] Elroy version TR4.0 (0x5) found at 0xfffffffffed38000
[    4.112359] LBA 10:4: PCI host bridge to bus 0000:02
[    4.180035] pci_bus 0000:02: root bus resource [io  0x28000-0x29fff] (bus address [0x8000-0x9fff])
[    4.296037] pci_bus 0000:02: root bus resource [mem 0xfffffffff9000000-0xfffffffff9ffffff] (bus address [0xf9000000-0xf9ffffff])
[    4.448027] pci_bus 0000:02: root bus resource [mem 0xfffffffff6000000-0xfffffffff67fffff] (bus address [0xf6000000-0xf67fffff])
[    4.600028] pci_bus 0000:02: root bus resource [bus 02]
[    4.672818] iosapic: hpa not registered for 0000:02:03.0
[    4.740384] Elroy version TR4.0 (0x5) found at 0xfffffffffed3c000
[    4.820337] LBA 10:6: PCI host bridge to bus 0000:03
[    4.888169] pci_bus 0000:03: root bus resource [io  0x3c000-0x3dfff] (bus address [0xc000-0xdfff])
[    5.004028] pci_bus 0000:03: root bus resource [mem 0xfffffffff7000000-0xfffffffff77fffff] (bus address [0xf7000000-0xf77fffff])
[    5.156028] pci_bus 0000:03: root bus resource [bus 03]
[    5.231823] powersw: Soft power switch at 0xfffffff0f0400804 enabled.
[    5.324572] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    5.414856] vgaarb: loaded
[    5.536173] VFS: Disk quotas dquot_6.6.0
[    5.584191] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    5.677237] AppArmor: AppArmor Filesystem Enabled
[    5.752377] NET: Registered protocol family 2
[    5.809256] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
[    5.904358] TCP bind hash table entries: 16384 (order: 6, 262144 bytes)
[    5.992506] TCP: Hash tables configured (established 16384 bind 16384)
[    6.080017] UDP hash table entries: 1024 (order: 3, 32768 bytes)
[    6.156095] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes)
[    6.244329] NET: Registered protocol family 1
[    6.300164] SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 68)
[    6.392059] SuperIO: Serial port 1 at 0x3f8
[    6.448033] SuperIO: Serial port 2 at 0x2f8
[    6.504030] SuperIO: Parallel port at 0x378
[    6.560029] SuperIO: Floppy controller at 0x3f0
[    6.620029] SuperIO: ACPI at 0x7e0
[    6.664173] SuperIO: USB regulator enabled
[    6.720535] Unpacking initramfs...
[    8.418641] Freeing initrd memory: 21076K
[    8.468240] clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0xacf9151134, max_idle_ns: 440795214493 ns
[    8.600118] clocksource: Switched to clocksource cr16
[    8.668487] Enabling PDC chassis warnings support v0.05
[    8.737457] Performance monitoring counters enabled for Allegro W2
[    8.820610] audit: initializing netlink subsys (disabled)
[    8.892858] audit: type=2000 audit(1512332275.887:1): state=initialized audit_enabled=0 res=1
[    9.005130] workingset: timestamp_bits=43 max_order=19 bucket_order=0
[    9.090093] zbud: loaded
[   37.399022] Key type asymmetric registered
[   37.453199] Asymmetric key parser 'x509' registered
[   37.517670] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[   37.615329] io scheduler noop registered
[   37.666936] io scheduler deadline registered
[   37.723196] io scheduler cfq registered (default)
[   37.785042] io scheduler mq-deadline registered
[   37.848242] PDC Stable Storage facility v0.30
[   38.242827] STI GSC/PCI core graphics driver Version 0.9b
[   38.314013] sti 0000:01:04.0: enabling SERR and PARITY (0002 -> 0142)
[   38.398777] STI PCI graphic ROM found at fffffffff4800000 (64 kB), fb at fffffffffa000000 (32 MB)
[   38.589866] STI ROM supports 32 bit firmware functions.
[   38.658624] STI selected 8x16 framebuffer font VGA8x16 for sticon
[   38.738834]     id 2d08c0a7-9a02587, conforms to spec rev. 8.0a
[   38.818440]     graphics card name: PCI_GRAFFITIX1280
[   38.884947] sticon: Initializing STI text console.
[   38.950364] Console: switching to colour STI console 160x64
[   40.143996] Console: switching to colour frame buffer device 160x64
[   40.311231] fb0: stifb 1280x1024-8 frame buffer device, PCI_GRAFFITIX1280, id: 2d08c0a7, mmio: 0xfffffffffa100000
[   40.446579] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[   40.529275] serial8250: ttyS0 at I/O 0x3f8 (irq = 3, base_baud = 115200) is a 16550A
[   40.631226] console [ttyS0] enabled
[   40.631226] console [ttyS0] enabled
[   40.718823] bootconsole [ttyB0] disabled
[   40.718823] bootconsole [ttyB0] disabled
[   40.817599] serial8250: ttyS1 at I/O 0x2f8 (irq = 4, base_baud = 115200) is a 16550A
[   40.911496] Linux agpgart interface v0.103
[   40.960513] quicksilver: No Pluto found, so no AGPGART for you.
[   41.032072] mousedev: PS/2 mouse device common for all mice
[   41.100946] rtc-generic rtc-generic: rtc core: registered rtc-generic as rtc0
[   41.186564] ledtrig-cpu: registered to indicate activity on CPUs
[   41.259160] NET: Registered protocol family 10
[   41.313938] Segment Routing with IPv6
[   41.357891] mip6: Mobile IPv6
[   41.393475] NET: Registered protocol family 17
[   41.446735] mpls_gso: MPLS GSO support
[   41.492542] registered taskstats version 1
[   41.541680] zswap: loaded using pool lzo/zbud
[   41.594084] AppArmor: AppArmor sha1 policy hashing enabled
[   41.659839] ima: No TPM chip found, activating TPM-bypass! (rc=-19)
[   41.737476] rtc-generic rtc-generic: setting system clock to 2017-12-03 20:18:29 UTC (1512332309)
[   41.847263] Freeing unused kernel memory: 1024K
[   41.901682] Write protecting the kernel read-only data: 1376k
Loading, please wait...
starting version 235
[   42.622004] tulip: Linux Tulip driver version 1.1.15-NAPI (Feb 27, 2007)
[   42.897074] SCSI subsystem initialized
[   42.997992] usbcore: registered new interface driver usbfs
[   43.185917] tulip0: no phy info, aborting mtable build
[   43.248289] tulip0:  MII transceiver #1 config 1000 status 782d advertising 01e1
[   43.403892] usbcore: registered new interface driver hub
[   43.468955] usbcore: registered new device driver usb
[   43.545569] net eth0: Digital DS21142/43 Tulip rev 65 at MMIO 0xfffffffff4008000, 00:30:6e:48:aa:64, IRQ 66
[   43.662804] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[   43.749973] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[   44.058247] sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 69
[   44.146187] ehci-pci: EHCI PCI platform driver
[   44.207519] ohci-pci: OHCI PCI platform driver
[   44.263747] sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking
[   44.345873] sym0: SCSI BUS has been reset.
[   44.398567] sym0: SCSI BUS mode change from SE to SE.
[   44.402517] sym0: SCSI BUS has been reset.
[   44.510541] scsi host0: sym-2.2.3
[   44.558573] scsi host1: pata_ns87415
[   44.602583] scsi host2: pata_ns87415
[   44.646201] ata1: PATA max MWDMA2 cmd 0xf00 ctl 0xe00 bmdma 0xa00 irq 7
[   44.725467] ata2: PATA max MWDMA2 cmd 0xd00 ctl 0xb00 bmdma 0xa08 irq 7
[   44.809407] ohci-pci 0000:00:0e.2: OHCI PCI host controller
[   44.878682] ohci-pci 0000:00:0e.2: new USB bus registered, assigned bus number 1
[   44.974847] ohci-pci 0000:00:0e.2: irq 1, io mem 0xfffffffff4007000
[   45.050734] ata1.00: ATAPI: CD-532E-B, 2.0A, max MWDMA2
[   45.113995] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
[   45.195337] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   45.281870] usb usb1: Product: OHCI PCI host controller
[   45.344439] usb usb1: Manufacturer: Linux 4.14.0-1-parisc64-smp ohci_hcd
[   45.424731] usb usb1: SerialNumber: 0000:00:0e.2
[   45.482667] hub 1-0:1.0: USB hub found
[   45.528256] ata1.00: configured for MWDMA2
[   45.577541] hub 1-0:1.0: 3 ports detected
[   45.860693] sym1: <896> rev 0x7 at pci 0000:00:0f.1 irq 69
[   45.952012] sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking
[   46.035227] sym1: SCSI BUS has been reset.
[   46.087344] scsi host3: sym-2.2.3
[   49.544849] scsi: waiting for bus probes to complete ...
[   50.645610] scsi 3:0:5:0: Direct-Access     COMPAQ   BF14688577       HPB2 PQ: 0 ANSI: 3
[   50.742525] scsi target3:0:5: tagged command queuing enabled, command queue depth 16.
[   50.836430] scsi target3:0:5: Beginning Domain Validation
[   50.908934] scsi target3:0:5: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
[   51.000937] scsi target3:0:5: Domain Validation skipping write tests
[   51.077043] scsi target3:0:5: Ending Domain Validation
[   51.140476] scsi 3:0:6:0: Direct-Access     HP 36.4G ST336607LC       HPC3 PQ: 0 ANSI: 3
[   51.237417] scsi target3:0:6: tagged command queuing enabled, command queue depth 16.
[   51.331258] scsi target3:0:6: Beginning Domain Validation
[   51.401333] scsi target3:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31)
[   51.491687] scsi target3:0:6: Domain Validation skipping write tests
[   51.567819] scsi target3:0:6: Ending Domain Validation
[   53.986246] scsi 1:0:0:0: CD-ROM            TEAC     CD-532E-B        2.0A PQ: 0 ANSI: 5
[   54.345230] sd 3:0:5:0: [sda] 286749488 512-byte logical blocks: (147 GB/137 GiB)
[   54.435111] sd 3:0:6:0: [sdb] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
[   54.544706] sd 3:0:6:0: [sdb] Write Protect is off
[   54.602514] sd 3:0:5:0: [sda] Write Protect is off
[   54.661805] sd 3:0:5:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   54.764987] sr 1:0:0:0: [sr0] scsi3-mmc drive: 32x/32x cd/rw xa/form2 cdda tray
[   54.852578] cdrom: Uniform CD-ROM driver Revision: 3.20
[   54.915192] sd 3:0:6:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
[   55.048066]  sda: sda1 sda2 sda3 < sda5 sda6 >
[   55.101515]  sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 >
[   55.181368] sd 3:0:5:0: [sda] Attached SCSI disk
[   55.259224] random: crng init done
[   55.317226] sd 3:0:6:0: [sdb] Attached SCSI disk
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... done.
Begin: Will now check root file system ... fsck from util-linux 2.30.2
[/sbin/fsck.ext4 (1) -- /dev/sda5] fsck.ext4 -a -C0 /dev/sda5 
ROOT: clean, 98931/8626176 files, 3246659/34490624 blocks
done.
[   56.841651] EXT4-fs (sda5): mounted filesystem with ordered data mode. Opts: (null)
done.
Begin: Running /scripts/local-bottom ... done.
Begin: Running /scripts/init-bottom ... done.
INIT: version 2.88 booting
Using makefile-style concurrent boot in runlevel S.
Starting the hotplug events dispatcher: systemd-udevdstarting version 235
.
Synthesizing the initial hotplug events...done.
Waiting for /dev to be fully populated...[   61.084525] sd 3:0:5:0: Attached scsi generic sg0 type 0
[   62.130990] sd 3:0:6:0: Attached scsi generic sg1 type 0
[   62.623219] sr 1:0:0:0: Attached scsi generic sg2 type 5
done.
Activating swap...[   66.411887] Adding 5249020k swap on /dev/sda6.  Priority:-2 extents:1 across:5249020k FS
done.
[   66.781479] net eth0: Setting full-duplex based on MII#1 link partner capability of 05e1
[   66.968703] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro
Activating lvm and md swap...done.
Checking file systems...fsck from util-linux 2.30.2
BOOT: clean, 23/31744 files, 90532/126976 blocks
done.
Cleaning up temporary files... /tmp.
[   71.094991] EXT4-fs (sda2): mounting ext2 file system using the ext4 subsystem
[   71.188204] EXT4-fs (sda2): mounted filesystem without journal. Opts: (null)
Mounting local filesystems...done.
Activating swapfile swap...done.
Cleaning up temporary files....
Starting AppArmor profiles:Mounting securityfs on /sys/kernel/security...Warning from stdin (line 1): /sbin/apparmor_parser: cannot use or update can
Warning failed to create cache: (null)
.
Setting kernel variables...done.
Configuring network interfaces...ifup: interface eth0 already configured
done.
Starting RPC port mapper daemon: rpcbind.
[   74.873589] RPC: Registered named UNIX socket transport module.
[   74.944511] RPC: Registered udp transport module.
[   75.000885] RPC: Registered tcp transport module.
[   75.057223] RPC: Registered tcp NFSv4.1 backchannel transport module.
[   75.214198] FS-Cache: Loaded
[   75.387633] FS-Cache: Netfs 'nfs' registered for caching
[   75.619736] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Starting NFS common utilities: statd idmapd.
Cleaning up temporary files....
Setting up ALSA...done.
Setting up X socket directories... /tmp/.X11-unix /tmp/.ICE-unix.
INIT: Entering runlevel: 2
Using makefile-style concurrent boot in runlevel 2.
Starting enhanced syslogd: rsyslogd.
Starting system message bus: dbus.
Starting cgroup management daemon: cgmanagerStarting virtual private network daemon:.
Starting anac(h)ronistic cron: anacron.
Starting Apache httpd web server: apache2.
Starting deferred execution scheduler: atd.
Starting Avahi mDNS/DNS-SD Daemon: avahi-daemon.
Starting cgroup management proxy daemon: cgproxy.
Starting periodic command scheduler: cron.
Starting SMP IRQ Balancer: irqbalance.
saned disabled; edit /etc/default/saned.
Starting OpenBSD Secure Shell server: sshd.
Starting MTA: exim4.
ALERT: exim paniclog /var/log/exim4/paniclog has non-zero size, mail system possibly broken

Debian GNU/Linux buster/sid c3000 ttyS0

c3000 login: 
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Subject: Re: Debian vmlinux-4.14.0-1-parisc64-smp fails to boot on c3750
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On 03.12.2017 21:21, Helge Deller wrote:
> On 03.12.2017 17:54, John David Anglin wrote:
>> Fails early, probably in palo.  I don't have a boot log as the machine has a graphics console.
>>
>> ii  linux-image-4.13.0-1-parisc64-smp          4.13.13-1     hppa         Linux 4.13 for multiprocessor 64-bit PA-RISC
>> ii  linux-image-4.14.0-1-parisc64-smp          4.14.2-1      hppa         Linux 4.14 for multiprocessor 64-bit PA-RISC
>>
>> The 4.13.13-1 kernel boots okay.
>>
>> root@hiauly6:/var/log# dpkg -l palo
>> ii  palo                               1.99                   hppa                   Linux boot loader for HP PA-RISC
> 
> Strange.
> It works nicely for me on my C3700 machine:

palo shows this layout:

> Segment 0 load 00100000 size 463104 mediaptr 0x1000
> Segment 1 load 00172000 <tel:00172000> size 210976 mediaptr 0x73000
> Segment 2 load 00200000 <tel:00200000> size 10634416 mediaptr 0xa7000
> Segment 3 load 00c25000 size 3194732 mediaptr 0xacc000
> Segment 4 load 01000000 size 2631320 mediaptr 0xdd8000

See: Segment 4 is >= 0x01000000.

Are you sure that you have run "palo" once that version 1.99 of the palo IPL is installed in your
boot sector?  Just having palo 1.99 installed in the Linux filesystems is not sufficient.

Helge
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From - Thu Nov 08 21:40:37 2018
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Subject: Re: Debian vmlinux-4.14.0-1-parisc64-smp fails to boot on c3750
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On 2017-12-03, at 3:21 PM, Helge Deller wrote:

> On 03.12.2017 17:54, John David Anglin wrote:
>> Fails early, probably in palo.  I don't have a boot log as the machine has a graphics console.
>> 
>> ii  linux-image-4.13.0-1-parisc64-smp          4.13.13-1     hppa         Linux 4.13 for multiprocessor 64-bit PA-RISC
>> ii  linux-image-4.14.0-1-parisc64-smp          4.14.2-1      hppa         Linux 4.14 for multiprocessor 64-bit PA-RISC
>> 
>> The 4.13.13-1 kernel boots okay.
>> 
>> root@hiauly6:/var/log# dpkg -l palo
>> ii  palo                               1.99                   hppa                   Linux boot loader for HP PA-RISC
> 
> 
> Strange.
> It works nicely for me on my C3700 machine:
> 
> 
> palo ipl 1.99 http://www.parisc-linux.org - Fri, 18 Aug 2017 11:50:44 +0200
> Skipping extended partition 6 - beyond reach of IPL
> 
> Partition Start(MB) End(MB) Id Type
> 1               2      33   f0 Palo
> 2              34     157   83 ext2
> 5             159   134887   83 ext2
> 
> PALO(F0) partition contains:
>    0/vmlinux64 18847280(0) bytes @ 0x140000
> 
> Information: No console specified on kernel command line. This is normal.
> PALO will choose the console currently used by firmware (serial).
> Command line for kernel: 'root=LABEL=ROOT rootfstype=ext4 HOME=/ panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux'
> Selected kernel: /vmlinux from partition 2
> Selected ramdisk: /initrd.img from partition 2
> ELF64 executable
> Entry 00100000 first 00100000 n 5
> Segment 0 load 00100000 size 463104 mediaptr 0x1000
> Segment 1 load 00172000 size 210976 mediaptr 0x73000
> Segment 2 load 00200000 size 10634416 mediaptr 0xa7000
> Segment 3 load 00c25000 size 3194732 mediaptr 0xacc000
> Segment 4 load 01000000 size 2631320 mediaptr 0xdd8000

Console output stops at the above line.  I'm using VisEG console (tty).  Also, on rp3440 command line console
changed from ttyS1 to ttyS0.

Dave
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From - Thu Nov 08 21:40:37 2018
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On 03.12.2017 21:37, John David Anglin wrote:
> On 2017-12-03, at 3:21 PM, Helge Deller wrote:
> 
>> On 03.12.2017 17:54, John David Anglin wrote:
>>> Fails early, probably in palo.  I don't have a boot log as the machine has a graphics console.
>>>
>>> ii  linux-image-4.13.0-1-parisc64-smp          4.13.13-1     hppa         Linux 4.13 for multiprocessor 64-bit PA-RISC
>>> ii  linux-image-4.14.0-1-parisc64-smp          4.14.2-1      hppa         Linux 4.14 for multiprocessor 64-bit PA-RISC
>>>
>>> The 4.13.13-1 kernel boots okay.
>>>
>>> root@hiauly6:/var/log# dpkg -l palo
>>> ii  palo                               1.99                   hppa                   Linux boot loader for HP PA-RISC
>>
>>
>> Strange.
>> It works nicely for me on my C3700 machine:
>>
>>
>> palo ipl 1.99 http://www.parisc-linux.org - Fri, 18 Aug 2017 11:50:44 +0200
>> Skipping extended partition 6 - beyond reach of IPL
>>
>> Partition Start(MB) End(MB) Id Type
>> 1               2      33   f0 Palo
>> 2              34     157   83 ext2
>> 5             159   134887   83 ext2
>>
>> PALO(F0) partition contains:
>>    0/vmlinux64 18847280(0) bytes @ 0x140000
>>
>> Information: No console specified on kernel command line. This is normal.
>> PALO will choose the console currently used by firmware (serial).
>> Command line for kernel: 'root=LABEL=ROOT rootfstype=ext4 HOME=/ panic_timeout=60 panic=-1 console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux'
>> Selected kernel: /vmlinux from partition 2
>> Selected ramdisk: /initrd.img from partition 2
>> ELF64 executable
>> Entry 00100000 first 00100000 n 5
>> Segment 0 load 00100000 size 463104 mediaptr 0x1000
>> Segment 1 load 00172000 <tel:00172000> size 210976 mediaptr 0x73000
>> Segment 2 load 00200000 <tel:00200000> size 10634416 mediaptr 0xa7000
>> Segment 3 load 00c25000 size 3194732 mediaptr 0xacc000
>> Segment 4 load 01000000 size 2631320 mediaptr 0xdd8000
> 
> Console output stops at the above line.

If it stops here it's can be an indication that you still have an old palo
bootloader code in your boot sector of the boot disc.
palo version 1.96 had the fix for segments above 0x01000000.

> I'm using VisEG console (tty).  Also, on rp3440 command line console
> changed from ttyS1 to ttyS0.

palo v1.98 was the first version which enabled ttyS1 on rp3440 machines...

My suggestion:
Boot into kernel 4.13.13 and run "palo -v" once (check your /etc/palo.conf too).
Afterwards reboot and try 4.14 again.
Watch to boot console, esp. the palo version printed after the "HARD Booted." message.

Helge
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From - Thu Nov 08 21:40:38 2018
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Subject: Re: Debian vmlinux-4.14.0-1-parisc64-smp fails to boot on c3750
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On 2017-12-03, at 3:36 PM, Helge Deller wrote:

> Are you sure that you have run "palo" once that version 1.99 of the palo IPL is installed in your
> boot sector?  Just having palo 1.99 installed in the Linux filesystems is not sufficient.

That was it.  The palo.conf file had a couple of problems and palo didn't run fully.  The boot
drive had changed from /dev/sda to /dev/sdb...

Thanks,
Dave
--
John David Anglin	dave.anglin@bell.net



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On (12/06/17 11:32), Petr Mladek wrote:
[..]
> > diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
> > index aa0a776c817a..02745028e909 100644
> > --- a/Documentation/printk-formats.txt
> > +++ b/Documentation/printk-formats.txt
> > @@ -61,41 +61,31 @@ Symbols/Function Pointers
> >  
> >  ::
> >  
> > -	%pF	versatile_init+0x0/0x110
> > -	%pf	versatile_init
> > -	%pS	versatile_init+0x0/0x110
> > -	%pSR	versatile_init+0x9/0x110
> > +	%pS     versatile_init+0x0/0x110
> > +	%ps     versatile_init
> > +	%pF     versatile_init+0x0/0x110
> > +	%pf     versatile_init
> > +	%pSR    versatile_init+0x9/0x110
> >  		(with __builtin_extract_return_addr() translation)
> > -	%ps	versatile_init
> > -	%pB	prev_fn_of_versatile_init+0x88/0x88
> > +	%pB     prev_fn_of_versatile_init+0x88/0x88
> 
> I was curious why so many lines were changed here. You converted
> the 2nd tab to spaces. I put back the tab. The result is:

ew... how did that happen. thanks for fixing up.

> > +static inline void *dereference_symbol_descriptor(void *ptr)
> > +{
> > +#ifdef HAVE_DEREFERENCE_FUNCTION_DESCRIPTOR
> > +	struct module *mod;
> > +
> > +	ptr = dereference_kernel_function_descriptor(ptr);
> > +	if (is_ksym_addr((unsigned long)ptr))
> > +		return ptr;
> > +
> > +	preempt_disable();
> > +	mod = __module_address((unsigned long)ptr);
> > +	preempt_enable();
> > +
> > +	if (mod)
> > +		ptr = dereference_module_function_descriptor(mod, ptr);
> > +#endif
> > +	return ptr;
> > +}
> 
> It is a bit too long for an inline function but I did not find a
> better solution. It should always be defined and all suitable
> .c files are compiled only under certain configuration. Well,
> it is a nop on most architectures.

or we can move dereference_symbol_descriptor() to vsprintf.c,
since all the functions it depends on are now available either
as exported symbols or via kallsyms header file. not that it
annoys me, so we can keep it as it is.

	-ss


From - Thu Nov 08 21:40:38 2018
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From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCHv4 5/6] symbol lookup: introduce
 dereference_symbol_descriptor()
Date: Wed, 6 Dec 2017 13:36:49 +0900
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Hello,

	so we got a number of build-error reports [somehow I
thought 0day has compile tested the patches already; well, I
was wrong] basically on congifs that have no KALLSYMS.


Petr, can we replace 0006 with the following patch?

8<--- --- ---

From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Subject: [PATCH] symbol lookup: introduce dereference_symbol_descriptor()

dereference_symbol_descriptor() invokes appropriate ARCH specific
function descriptor dereference callbacks:
- dereference_kernel_function_descriptor() if the pointer is a
  kernel symbol;

- dereference_module_function_descriptor() if the pointer is a
  module symbol.

This is the last step needed to make '%pS/%ps' smart enough to
handle function descriptor dereference on affected ARCHs and
to retire '%pF/%pf'.

To refresh it:
  Some architectures (ia64, ppc64, parisc64) use an indirect pointer
  for C function pointers - the function pointer points to a function
  descriptor and we need to dereference it to get the actual function
  pointer.

  Function descriptors live in .opd elf section and all affected
  ARCHs (ia64, ppc64, parisc64) handle it properly for kernel and
  modules. So we, technically, can decide if the dereference is
  needed by simply looking at the pointer: if it belongs to .opd
  section then we need to dereference it.

  The kernel and modules have their own .opd sections, obviously,
  that's why we need to split dereference_function_descriptor()
  and use separate kernel and module dereference arch callbacks.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 Documentation/printk-formats.txt | 42 ++++++++++++-------------------
 include/linux/kallsyms.h         | 53 ++++++++++++++++++++++++++++++++++++++++
 kernel/kallsyms.c                | 33 -------------------------
 lib/vsprintf.c                   |  5 ++--
 4 files changed, 71 insertions(+), 62 deletions(-)

diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index aa0a776c817a..02745028e909 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -61,41 +61,31 @@ Symbols/Function Pointers
 
 ::
 
-	%pF	versatile_init+0x0/0x110
-	%pf	versatile_init
-	%pS	versatile_init+0x0/0x110
-	%pSR	versatile_init+0x9/0x110
+	%pS     versatile_init+0x0/0x110
+	%ps     versatile_init
+	%pF     versatile_init+0x0/0x110
+	%pf     versatile_init
+	%pSR    versatile_init+0x9/0x110
 		(with __builtin_extract_return_addr() translation)
-	%ps	versatile_init
-	%pB	prev_fn_of_versatile_init+0x88/0x88
+	%pB     prev_fn_of_versatile_init+0x88/0x88
 
-The ``F`` and ``f`` specifiers are for printing function pointers,
-for example, f->func, &gettimeofday. They have the same result as
-``S`` and ``s`` specifiers. But they do an extra conversion on
-ia64, ppc64 and parisc64 architectures where the function pointers
-are actually function descriptors.
+The ``S`` and ``s`` specifiers are used for printing a pointer in symbolic
+format. They result in the symbol name with (``S``) or without (``s``)
+offsets. If KALLSYMS are disabled then the symbol address is printed instead.
 
-The ``S`` and ``s`` specifiers can be used for printing symbols
-from direct addresses, for example, __builtin_return_address(0),
-(void *)regs->ip. They result in the symbol name with (``S``) or
-without (``s``) offsets. If KALLSYMS are disabled then the symbol
-address is printed instead.
+Note, that the ``F`` and ``f`` specifiers are identical to ``S`` (``s``)
+and thus deprecated. We have ``F`` and ``f`` because on ia64, ppc64 and
+parisc64 function pointers are indirect and, in fact, are function
+descriptors, which require additional dereferencing before we can lookup
+the symbol. As of now, ``S`` and ``s`` perform dereferencing on those
+platforms (when needed), so ``F`` and ``f`` exist for compatibility
+reasons only.
 
 The ``B`` specifier results in the symbol name with offsets and should be
 used when printing stack backtraces. The specifier takes into
 consideration the effect of compiler optimisations which may occur
 when tail-call``s are used and marked with the noreturn GCC attribute.
 
-Examples::
-
-	printk("Going to call: %pF\n", gettimeofday);
-	printk("Going to call: %pF\n", p->func);
-	printk("%s: called from %pS\n", __func__, (void *)_RET_IP_);
-	printk("%s: called from %pS\n", __func__,
-				(void *)__builtin_return_address(0));
-	printk("Faulted at %pS\n", (void *)regs->ip);
-	printk(" %s%pB\n", (reliable ? "" : "? "), (void *)*stack);
-
 Kernel Pointers
 ===============
 
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index bd118a6c60cb..1bcfe221e62c 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -9,6 +9,9 @@
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/stddef.h>
+#include <linux/mm.h>
+
+#include <asm/sections.h>
 
 #define KSYM_NAME_LEN 128
 #define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \
@@ -16,6 +19,56 @@
 
 struct module;
 
+static inline int is_kernel_inittext(unsigned long addr)
+{
+	if (addr >= (unsigned long)_sinittext
+	    && addr <= (unsigned long)_einittext)
+		return 1;
+	return 0;
+}
+
+static inline int is_kernel_text(unsigned long addr)
+{
+	if ((addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) ||
+	    arch_is_kernel_text(addr))
+		return 1;
+	return in_gate_area_no_mm(addr);
+}
+
+static inline int is_kernel(unsigned long addr)
+{
+	if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end)
+		return 1;
+	return in_gate_area_no_mm(addr);
+}
+
+static inline int is_ksym_addr(unsigned long addr)
+{
+	if (IS_ENABLED(CONFIG_KALLSYMS_ALL))
+		return is_kernel(addr);
+
+	return is_kernel_text(addr) || is_kernel_inittext(addr);
+}
+
+static inline void *dereference_symbol_descriptor(void *ptr)
+{
+#ifdef HAVE_DEREFERENCE_FUNCTION_DESCRIPTOR
+	struct module *mod;
+
+	ptr = dereference_kernel_function_descriptor(ptr);
+	if (is_ksym_addr((unsigned long)ptr))
+		return ptr;
+
+	preempt_disable();
+	mod = __module_address((unsigned long)ptr);
+	preempt_enable();
+
+	if (mod)
+		ptr = dereference_module_function_descriptor(mod, ptr);
+#endif
+	return ptr;
+}
+
 #ifdef CONFIG_KALLSYMS
 /* Lookup the address for a symbol. Returns 0 if not found. */
 unsigned long kallsyms_lookup_name(const char *name);
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index d5fa4116688a..4a79598e92c7 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -27,8 +27,6 @@
 #include <linux/ftrace.h>
 #include <linux/compiler.h>
 
-#include <asm/sections.h>
-
 /*
  * These will be re-linked against their real values
  * during the second link stage.
@@ -52,37 +50,6 @@ extern const u16 kallsyms_token_index[] __weak;
 
 extern const unsigned long kallsyms_markers[] __weak;
 
-static inline int is_kernel_inittext(unsigned long addr)
-{
-	if (addr >= (unsigned long)_sinittext
-	    && addr <= (unsigned long)_einittext)
-		return 1;
-	return 0;
-}
-
-static inline int is_kernel_text(unsigned long addr)
-{
-	if ((addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) ||
-	    arch_is_kernel_text(addr))
-		return 1;
-	return in_gate_area_no_mm(addr);
-}
-
-static inline int is_kernel(unsigned long addr)
-{
-	if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end)
-		return 1;
-	return in_gate_area_no_mm(addr);
-}
-
-static int is_ksym_addr(unsigned long addr)
-{
-	if (IS_ENABLED(CONFIG_KALLSYMS_ALL))
-		return is_kernel(addr);
-
-	return is_kernel_text(addr) || is_kernel_inittext(addr);
-}
-
 /*
  * Expand a compressed symbol data into the resulting uncompressed string,
  * if uncompressed string is too long (>= maxlen), it will be truncated,
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 01c3957b2de6..03950269f35d 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -42,7 +42,6 @@
 #include "../mm/internal.h"	/* For the trace_print_flags arrays */
 
 #include <asm/page.h>		/* for PAGE_SIZE */
-#include <asm/sections.h>	/* for dereference_function_descriptor() */
 #include <asm/byteorder.h>	/* cpu_to_le16 */
 
 #include <linux/string_helpers.h>
@@ -1862,10 +1861,10 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 	switch (*fmt) {
 	case 'F':
 	case 'f':
-		ptr = dereference_function_descriptor(ptr);
-		/* Fallthrough */
 	case 'S':
 	case 's':
+		ptr = dereference_symbol_descriptor(ptr);
+		/* Fallthrough */
 	case 'B':
 		return symbol_string(buf, end, ptr, spec, fmt);
 	case 'R':
-- 
2.15.1

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From: Mikulas Patocka <mpatocka@redhat.com>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.openipmi
Subject: [PATCH] ipmi_si: fix crash on parisc
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Xref: news.gmane.org gmane.linux.ports.parisc:28034 gmane.linux.kernel.openipmi:3394
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/28034>

This patch fixes ipmi crash on parisc introduced in the kernel 4.15-rc.
The pointer io.io_setup is not initialized and thus it causes crash in
try_smi_init when attempting to call new_smi->io.io_setup.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
 drivers/char/ipmi/ipmi_si_parisc.c |    2 ++
 1 file changed, 2 insertions(+)

Index: linux-4.15-rc2/drivers/char/ipmi/ipmi_si_parisc.c
===================================================================
--- linux-4.15-rc2.orig/drivers/char/ipmi/ipmi_si_parisc.c	2017-12-06 01:19:49.000000000 +0100
+++ linux-4.15-rc2/drivers/char/ipmi/ipmi_si_parisc.c	2017-12-06 06:40:12.000000000 +0100
@@ -10,6 +10,8 @@ static int __init ipmi_parisc_probe(stru
 {
 	struct si_sm_io io;
 
+	memset(&io, 0, sizeof(io));
+
 	io.si_type	= SI_KCS;
 	io.addr_source	= SI_DEVICETREE;
 	io.addr_type	= IPMI_MEM_ADDR_SPACE;
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From - Thu Nov 08 21:40:38 2018
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From: Petr Mladek <pmladek@suse.com>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.kernel
Subject: Re: [PATCHv4 5/6] symbol lookup: introduce
 dereference_symbol_descriptor()
Date: Wed, 6 Dec 2017 11:32:41 +0100
Lines: 112
Approved: news@gmane.org
Message-ID: <20171206103241.t2jbljml7it7wsnz@pathway.suse.cz>
References: <20171109234830.5067-1-sergey.senozhatsky@gmail.com>
 <20171109234830.5067-6-sergey.senozhatsky@gmail.com>
 <20171206043649.GB15885@jagdpanzerIV>
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Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        James Bottomley <jejb@parisc-linux.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jessica Yu <jeyu@kernel.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
To: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
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On Wed 2017-12-06 13:36:49, Sergey Senozhatsky wrote:
> Hello,
> 
> 	so we got a number of build-error reports [somehow I
> thought 0day has compile tested the patches already; well, I
> was wrong] basically on congifs that have no KALLSYMS.
> 
> 
> Petr, can we replace 0006 with the following patch?

Done. See comments below.

> From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
> Subject: [PATCH] symbol lookup: introduce dereference_symbol_descriptor()
> 
> 
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>

The new patch only shuffled the code to fix a compilation problem
with CONFIG_CALLSYMS undefined. It did not change the functionality.
Therefore I put back:

Tested-by: Tony Luck <tony.luck@intel.com> #ia64
Tested-by: Santosh Sivaraj <santosh@fossix.org> #powerpc
Tested-by: Helge Deller <deller@gmx.de> #parisc64

> ---
>  Documentation/printk-formats.txt | 42 ++++++++++++-------------------
>  include/linux/kallsyms.h         | 53 ++++++++++++++++++++++++++++++++++++++++
>  kernel/kallsyms.c                | 33 -------------------------
>  lib/vsprintf.c                   |  5 ++--
>  4 files changed, 71 insertions(+), 62 deletions(-)
> 
> diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
> index aa0a776c817a..02745028e909 100644
> --- a/Documentation/printk-formats.txt
> +++ b/Documentation/printk-formats.txt
> @@ -61,41 +61,31 @@ Symbols/Function Pointers
>  
>  ::
>  
> -	%pF	versatile_init+0x0/0x110
> -	%pf	versatile_init
> -	%pS	versatile_init+0x0/0x110
> -	%pSR	versatile_init+0x9/0x110
> +	%pS     versatile_init+0x0/0x110
> +	%ps     versatile_init
> +	%pF     versatile_init+0x0/0x110
> +	%pf     versatile_init
> +	%pSR    versatile_init+0x9/0x110
>  		(with __builtin_extract_return_addr() translation)
> -	%ps	versatile_init
> -	%pB	prev_fn_of_versatile_init+0x88/0x88
> +	%pB     prev_fn_of_versatile_init+0x88/0x88

I was curious why so many lines were changed here. You converted
the 2nd tab to spaces. I put back the tab. The result is:

--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -50,42 +50,31 @@ Symbols/Function Pointers
 
 ::
 
+	%pS	versatile_init+0x0/0x110
+	%ps	versatile_init
 	%pF	versatile_init+0x0/0x110
 	%pf	versatile_init
-	%pS	versatile_init+0x0/0x110
 	%pSR	versatile_init+0x9/0x110
 		(with __builtin_extract_return_addr() translation)
-	%ps	versatile_init
 	%pB	prev_fn_of_versatile_init+0x88/0x88
 
https://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk.git/commit/?h=for-4.16-deprecate-printk-pf&id=78675fe41d57c2bf9cb671f0a85b369a5a156f0a

>  
> diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
> index bd118a6c60cb..1bcfe221e62c 100644
> --- a/include/linux/kallsyms.h
> +++ b/include/linux/kallsyms.h
> +static inline void *dereference_symbol_descriptor(void *ptr)
> +{
> +#ifdef HAVE_DEREFERENCE_FUNCTION_DESCRIPTOR
> +	struct module *mod;
> +
> +	ptr = dereference_kernel_function_descriptor(ptr);
> +	if (is_ksym_addr((unsigned long)ptr))
> +		return ptr;
> +
> +	preempt_disable();
> +	mod = __module_address((unsigned long)ptr);
> +	preempt_enable();
> +
> +	if (mod)
> +		ptr = dereference_module_function_descriptor(mod, ptr);
> +#endif
> +	return ptr;
> +}

It is a bit too long for an inline function but I did not find a
better solution. It should always be defined and all suitable
.c files are compiled only under certain configuration. Well,
it is a nop on most architectures.

Best Regards,
Petr
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From - Thu Nov 08 21:40:38 2018
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.openipmi
Subject: Re: [PATCH] ipmi_si: fix crash on parisc
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Mikulas Patocka wrote:
> This patch fixes ipmi crash on parisc introduced in the kernel 4.15-rc.
> The pointer io.io_setup is not initialized and thus it causes crash in
> try_smi_init when attempting to call new_smi->io.io_setup.
> 
> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
> 
> ---
>  drivers/char/ipmi/ipmi_si_parisc.c |    2 ++
>  1 file changed, 2 insertions(+)
> 
> Index: linux-4.15-rc2/drivers/char/ipmi/ipmi_si_parisc.c
> ===================================================================
> --- linux-4.15-rc2.orig/drivers/char/ipmi/ipmi_si_parisc.c	2017-12-06
> 01:19:49.000000000 +0100
> +++ linux-4.15-rc2/drivers/char/ipmi/ipmi_si_parisc.c	2017-12-06
> 06:40:12.000000000 +0100
> @@ -10,6 +10,8 @@ static int __init ipmi_parisc_probe(stru
>  {
>  	struct si_sm_io io;
> 
> +	memset(&io, 0, sizeof(io));
> +
>  	io.si_type	= SI_KCS;
>  	io.addr_source	= SI_DEVICETREE;
>  	io.addr_type	= IPMI_MEM_ADDR_SPACE;

Can't this be a C99 initializer for the whole struct? AFAIK this would 
set all remaining members to 0 anyway.

Eike
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On 12/06/2017 03:25 AM, Mikulas Patocka wrote:
> This patch fixes ipmi crash on parisc introduced in the kernel 4.15-rc.
> The pointer io.io_setup is not initialized and thus it causes crash in
> try_smi_init when attempting to call new_smi->io.io_setup.

Thanks, I'll get this in for 4.15.

-corey

> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
>
> ---
>   drivers/char/ipmi/ipmi_si_parisc.c |    2 ++
>   1 file changed, 2 insertions(+)
>
> Index: linux-4.15-rc2/drivers/char/ipmi/ipmi_si_parisc.c
> ===================================================================
> --- linux-4.15-rc2.orig/drivers/char/ipmi/ipmi_si_parisc.c	2017-12-06 01:19:49.000000000 +0100
> +++ linux-4.15-rc2/drivers/char/ipmi/ipmi_si_parisc.c	2017-12-06 06:40:12.000000000 +0100
> @@ -10,6 +10,8 @@ static int __init ipmi_parisc_probe(stru
>   {
>   	struct si_sm_io io;
>   
> +	memset(&io, 0, sizeof(io));
> +
>   	io.si_type	= SI_KCS;
>   	io.addr_source	= SI_DEVICETREE;
>   	io.addr_type	= IPMI_MEM_ADDR_SPACE;


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On Wed, 6 Dec 2017, Rolf Eike Beer wrote:

> Mikulas Patocka wrote:
> > This patch fixes ipmi crash on parisc introduced in the kernel 4.15-rc.
> > The pointer io.io_setup is not initialized and thus it causes crash in
> > try_smi_init when attempting to call new_smi->io.io_setup.
> > 
> > Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
> > 
> > ---
> >  drivers/char/ipmi/ipmi_si_parisc.c |    2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > Index: linux-4.15-rc2/drivers/char/ipmi/ipmi_si_parisc.c
> > ===================================================================
> > --- linux-4.15-rc2.orig/drivers/char/ipmi/ipmi_si_parisc.c	2017-12-06
> > 01:19:49.000000000 +0100
> > +++ linux-4.15-rc2/drivers/char/ipmi/ipmi_si_parisc.c	2017-12-06
> > 06:40:12.000000000 +0100
> > @@ -10,6 +10,8 @@ static int __init ipmi_parisc_probe(stru
> >  {
> >  	struct si_sm_io io;
> > 
> > +	memset(&io, 0, sizeof(io));
> > +
> >  	io.si_type	= SI_KCS;
> >  	io.addr_source	= SI_DEVICETREE;
> >  	io.addr_type	= IPMI_MEM_ADDR_SPACE;
> 
> Can't this be a C99 initializer for the whole struct? AFAIK this would set all
> remaining members to 0 anyway.
> 
> Eike

It can - but all the other functions that call ipmi_si_add_smi also use 
memset.

Mikulas
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On Wed, 1 Feb 2017, John David Anglin wrote:

> On 2017-02-01 3:10 PM, Mikulas Patocka wrote:
> > > I'm not 100% convinced that 4.9 is fully stable and that the patch
> > > is the reason for the crashes you see.
> > > What kind of crashes do you see? Userspace or kernel ?
> > Userspace crashes. Random crashes or internal errors in gcc when compiling
> > the kernel. I once had "aptitude" crash.
> The userspace crashes are present in 4.8 and 4.9 as well.  For example, this
> build failed due to an OS problem:
> https://buildd.debian.org/status/fetch.php?pkg=kdenlive&arch=hppa&ver=16.12.1-2&stamp=1485956026&raw=0
> 
> Probably, 10% or more large packages fail to build because of this. Note that
> this only occurs on machines
> (e.g., c8000) that only support equivalent aliases.  We don't see this on the
> parisc buildd which has two PA8600 CPUs.
> 
> My current theory is the following functions are buggy:
> 
> /* vmap range flushes and invalidates.  Architecturally, we don't need
>  * the invalidate, because the CPU should refuse to speculate once an
>  * area has been flushed, so invalidate is left empty */
> static inline void flush_kernel_vmap_range(void *vaddr, int size)
> {
>         unsigned long start = (unsigned long)vaddr;
> 
>         flush_kernel_dcache_range_asm(start, start + size);
> }
> static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
> {
>         unsigned long start = (unsigned long)vaddr;
>         void *cursor = vaddr;
> 
>         for ( ; cursor < vaddr + size; cursor += PAGE_SIZE) {
>                 struct page *page = vmalloc_to_page(cursor);
> 
>                 if (test_and_clear_bit(PG_dcache_dirty, &page->flags))
>                         flush_kernel_dcache_page(page);
>         }
>         flush_kernel_dcache_range_asm(start, start + size);
> }

BTW. if you flush a cache line, then - according to the pa-risc 
specification - the page stays in the TLB and the CPU can fetch anything 
that is in the TLB speculatively. So, such a flush could really have no 
effect.

The kernel should first flush TLB for the affected range and then flush 
the data using the tmpalias mapping.

Mikulas

> The kernel sets up a vmap range for I/O and we have non equivalent aliases to
> the offset map
> pages.  I know the PG_dcache_dirty is never set when these routines are
> called, so the for loop
> does nothing.  Nuking the whole data cache appears to fix the application
> errors but my test
> was cut short by a second problem.  No one else seems to do anything with
> offset map, so
> we might have a parisc specific driver problem.
> 
> We also have a down_read/up_read problem where applications stall forever and
> are not killable
> (D state in top).  Some seemed related to signal processing but they have
> occurred in other
> situations as well.  They seem more prevalent.  For example, I can't remember
> this happening
> with 3.18 branch.  This problem seems to be triggered by application tests
> involving multiple
> threads (glibc, gcc go and libgomp, and mariadb).
> 
> Dave
> 
> -- 
> John David Anglin  dave.anglin@bell.net
> 
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.debian.ports.hppa
Subject: Re: Have my PA8800 back online... (serial port missing on v4.14)
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Adding the linux-serial mailing list:

* Frank Scheiner <frank.scheiner@web.de>:
> On 12/04/2017 03:54 PM, Helge Deller wrote:
> > Anyway, the *only* problem we have right now is, that the Linux kernel 4.14 doesn't detect all serial ports which were detected in earlier kernels.
> > Thus the kernel will talk to the non-existant serial port at 0xfffffffff4050010 instead of 0xfffffffff4050000.
> > 
> > 4.13:
> > [   28.882849] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> > [   28.898720] 0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq = 73, base_baud = 115200) is a 16450
> > [   28.934669] 0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq = 73, base_baud = 115200) is a 16550A
> > [   28.963031] 0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq = 73, base_baud = 115200) is a 16550A
> > [   28.984946] 0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq = 73, base_baud = 115200) is a 16550A
> 
> > 
> > ...but for v4.14.x only the following serial ports are detected:
> > [   28.671984] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> > [   28.708902] 0000:e0:01.1: ttyS0 at MMIO 0xfffffffff4050000 (irq = 73, base_baud = 115200) is a 16550A
> > [   28.731145] 0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050010 (irq = 73, base_baud = 115200) is a 16550A
> > 
> > 
> > Maybe reverting this commit brings back the old behavior:
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7d8905d064058f4b65057e0101588f362f288bc0
> 
> I'm unsure about this commit, it speaks more of avoiding duplicate messages
> for device enabling.

Reverting this commit:

commit 7d8905d064058f4b65057e0101588f362f288bc0
Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date:   Mon Jul 24 20:28:32 2017 +0300

    serial: 8250_pci: Enable device after we check black list

indeed fixes the problem.

After reverting, the serial port from the Diva card shows up as ttyS0 (as before).
With that patch applied, the serial port from the Diva card gets
ignored and the previous ttyS1 port becomes ttyS0 which then breaks
booting the parisc machine because the kernel expects the serial port on
ttyS1.


I'm not sure what the best way forward is.
Fact is, that the patch above changes the behaviour and serial ports
which were existant before suddenly vanish with kernel 4.14.

This following patch does work, and adds back the Diva serial port on parisc.
Not sure if it's acceptable though.

Helge

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 0c101a7470b0..61319e968e8c 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -3393,6 +3393,10 @@ static int serial_pci_is_class_communication(struct pci_dev *dev)
 	 * (Should we try to make guesses for multiport serial devices
 	 * later?)
 	 */
+	if (IS_ENABLED(CONFIG_PARISC) &&
+	    (dev->class >> 8) == PCI_CLASS_COMMUNICATION_OTHER)
+		return 0;
+
 	if ((((dev->class >> 8) != PCI_CLASS_COMMUNICATION_SERIAL) &&
 	     ((dev->class >> 8) != PCI_CLASS_COMMUNICATION_MODEM)) ||
 	    (dev->class & 0xff) > 6)
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        "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
To: John David Anglin <dave.anglin@bell.net>
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The stack overflow problem was reintroduced by the following change:

    Merge branch 'parisc-4.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
    
    Pull parisc updates from Helge Deller:
    
     - add Kernel address space layout randomization support
    
     - re-enable interrupts earlier now that we have a working IRQ stack

As noted below, interrupts can't be enabled early because the register saves are done on the thread stack prior
to switching to the IRQ stack.  This caused stack overflows and the thread stack needed increasing to 32k.  Even then,
stack overflows still occasionally occurred.

On 2017-11-13, at 7:35 PM, John David Anglin wrote:

> Even with a 32 kB thread stack, I have seen instances where the thread stack overflowed on the mx3210 buildd.
> Detection of stack overflow only occurs when we have an external interrupt.  When an external interrupt occurs,
> we switch to the thread stack if we are not already on a kernel stack.  Then, registers and specials are saved to
> the kernel stack.
> 
> The bug occurs in intr_return where interrupts are reenabled prior to returning from the interrupt.  This was done
> incase we need to schedule or deliver signals.  However, it introduces the possibility that multiple external interrupts
> may occur on the thread stack and cause a stack overflow.  These might not be detected and cause the kernel to
> misbehave in random ways.
> 
> This patch changes the code to only reenable interrupts when we are going to schedule or deliver signals.  As a
> result, we generally return from an interrupt before reenabling interrupts.  This minimizes the growth of the thread
> stack.
> 
> This patch conflicts with the patch proposed by Helge here:
> https://patchwork.kernel.org/patch/9970169/
> 
> In testing, I found that the thread stack can be 16 kB  when using an irq stack .  Without it, the thread stack needs
> to be 32 kB.  Currently, the irq stack is 32 kB.  While it probably could be 16 kB, I would prefer to leave it as is for
> safety.
> 
> Signed-off-by: John David Anglin <dave.anglin@bell.net>
> 
> 
> <low-stack.d.stack>
> 
> --
> John David Anglin	dave.anglin@bell.net


Dave
--
John David Anglin	dave.anglin@bell.net



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From: Dan Carpenter <dan.carpenter@oracle.com>
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Subject: [PATCH] parisc: Add missing curly braces in puts()
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Static analysis tools complain that we intended to have curly braces
around this indent block.  Which is true.

Fixes: 2f3c7b8137ef ("parisc: Add core code for self-extracting kernel")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/arch/parisc/boot/compressed/misc.c b/arch/parisc/boot/compressed/misc.c
index 9345b44b86f0..432d33804a86 100644
--- a/arch/parisc/boot/compressed/misc.c
+++ b/arch/parisc/boot/compressed/misc.c
@@ -121,10 +121,11 @@ int puts(const char *s)
 	const char *nuline = s;
 
 	while ((nuline = strchr(s, '\n')) != NULL) {
-		if (nuline != s)
+		if (nuline != s) {
 			pdc_iodc_print(s, nuline - s);
 			pdc_iodc_print("\r\n", 2);
 			s = nuline + 1;
+		}
 	}
 	if (*s != '\0')
 		pdc_iodc_print(s, strlen(s));
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Subject: Re: [PATCH] parisc: Add missing curly braces in puts()
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On 09.12.2017 12:45, Dan Carpenter wrote:
> Static analysis tools complain that we intended to have curly braces
> around this indent block.  Which is true.

No, it's not.
I think the existing indenting is simply wrong and thus the static 
analysis tool assumes it wrongly.
I'll check and fix either way.

Helge
 
> Fixes: 2f3c7b8137ef ("parisc: Add core code for self-extracting kernel")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> 
> diff --git a/arch/parisc/boot/compressed/misc.c b/arch/parisc/boot/compressed/misc.c
> index 9345b44b86f0..432d33804a86 100644
> --- a/arch/parisc/boot/compressed/misc.c
> +++ b/arch/parisc/boot/compressed/misc.c
> @@ -121,10 +121,11 @@ int puts(const char *s)
>  	const char *nuline = s;
>  
>  	while ((nuline = strchr(s, '\n')) != NULL) {
> -		if (nuline != s)
> +		if (nuline != s) {
>  			pdc_iodc_print(s, nuline - s);
>  			pdc_iodc_print("\r\n", 2);
>  			s = nuline + 1;
> +		}
>  	}
>  	if (*s != '\0')
>  		pdc_iodc_print(s, strlen(s));
> 

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This is a multi-part message in MIME format.
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On 08.12.2017 23:14, John David Anglin wrote:
> On 2017-12-08 4:29 PM, Helge Deller wrote:
>>> root@rp3440:~# lspci -nn
>>> [...]
>>> e0:01.0 Communication controller [0780]: Hewlett-Packard Company Auxiliary Diva Serial Port [103c:1290] (rev 01)
>>> e0:01.1 Serial controller [0700]: Hewlett-Packard Company Diva Serial [GSP] Multiport UART [103c:1048] (rev 03)
>>>
>>> Interesting - actually the current situation looks like what [your patch from May 29th] should have accomplished. But as you dropped it in favor of a patch to palo, it seems to be unrelated.
>>>
>>> [your patch from May 29th]:https://patchwork.kernel.org/patch/9753613/
>> The patch had some other issues which is why I dropped it.
>> I like the testing of the class id much more, as it's done by the current upstream code.
>> E.g. this diva port reports PCI_CLASS_COMMUNICATION_OTHER as PCI CLASS ID, which differs to what the serial port driver should handle.
>>
> Yes, you previously noted that this port has no external connector or access via Ethernet.  I suspect it talks to some internal module.
> I don't know if there's any reason to access the device it's connected to (if any).  It probably should be "ttyO0".
> 
> Although the renumbering of the serial ports is somewhat annoying

Yes, it's really annoying.
Especially right now, where all kernels >= 4.14 need ttyS0, while older onese require ttyS1 as boot console. 
It's confusing.

> maybe palo change should be reverted so default is always ttyS0

Yes, agreed.
With the current situation we are not better with preselecting ttyS1 on rp34x0 machines.

> I would like the enumeration of the RV100 port skipped as the implementation on the rp34xx machines is broken and can't be used.

The RV100 port refers here to the built-in ATI Radeon 7000 graphics card which is part of Diva management card.
It's not working on rp34x0 machines. 

> It's enumeration means one has to explicitly specify the console argument in the boot command line as there seems to no way to
> prefer the serial console port.

Can you please try attached patch which disables the serial MUX and ATI card?
If it works for you and if we backport it to all kernels and if we revert palo to use ttyS0 for all machines we might be good.

Helge

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These duplicate includes have been found with scripts/checkincludes.pl but
they have been removed manually to avoid removing false positives.

Signed-off-by: Pravin Shedge <pravin.shedge4linux@gmail.com>
---
 arch/parisc/kernel/unwind.c | 1 -
 arch/parisc/lib/delay.c     | 2 --
 2 files changed, 3 deletions(-)

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 5a65798..143f90e 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -15,7 +15,6 @@
 #include <linux/slab.h>
 #include <linux/kallsyms.h>
 #include <linux/sort.h>
-#include <linux/sched.h>
 
 #include <linux/uaccess.h>
 #include <asm/assembly.h>
diff --git a/arch/parisc/lib/delay.c b/arch/parisc/lib/delay.c
index 7eab4bb..66e5065 100644
--- a/arch/parisc/lib/delay.c
+++ b/arch/parisc/lib/delay.c
@@ -16,9 +16,7 @@
 #include <linux/preempt.h>
 #include <linux/init.h>
 
-#include <asm/processor.h>
 #include <asm/delay.h>

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On 2017-12-08, at 6:22 AM, Mikulas Patocka wrote:

> 
> On Wed, 1 Feb 2017, John David Anglin wrote:
> 
>> On 2017-02-01 3:10 PM, Mikulas Patocka wrote:
>>>> I'm not 100% convinced that 4.9 is fully stable and that the patch
>>>> is the reason for the crashes you see.
>>>> What kind of crashes do you see? Userspace or kernel ?
>>> Userspace crashes. Random crashes or internal errors in gcc when compiling
>>> the kernel. I once had "aptitude" crash.
>> The userspace crashes are present in 4.8 and 4.9 as well.  For example, this
>> build failed due to an OS problem:
>> https://buildd.debian.org/status/fetch.php?pkg=kdenlive&arch=hppa&ver=16.12.1-2&stamp=1485956026&raw=0
>> 
>> Probably, 10% or more large packages fail to build because of this. Note that
>> this only occurs on machines
>> (e.g., c8000) that only support equivalent aliases.  We don't see this on the
>> parisc buildd which has two PA8600 CPUs.
>> 
>> My current theory is the following functions are buggy:
>> 
>> /* vmap range flushes and invalidates.  Architecturally, we don't need
>> * the invalidate, because the CPU should refuse to speculate once an
>> * area has been flushed, so invalidate is left empty */
>> static inline void flush_kernel_vmap_range(void *vaddr, int size)
>> {
>>        unsigned long start = (unsigned long)vaddr;
>> 
>>        flush_kernel_dcache_range_asm(start, start + size);
>> }
>> static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
>> {
>>        unsigned long start = (unsigned long)vaddr;
>>        void *cursor = vaddr;
>> 
>>        for ( ; cursor < vaddr + size; cursor += PAGE_SIZE) {
>>                struct page *page = vmalloc_to_page(cursor);
>> 
>>                if (test_and_clear_bit(PG_dcache_dirty, &page->flags))
>>                        flush_kernel_dcache_page(page);
>>        }
>>        flush_kernel_dcache_range_asm(start, start + size);
>> }
> 
> BTW. if you flush a cache line, then - according to the pa-risc 
> specification - the page stays in the TLB and the CPU can fetch anything 
> that is in the TLB speculatively. So, such a flush could really have no 
> effect.
> 
> The kernel should first flush TLB for the affected range and then flush 
> the data using the tmpalias mapping.

I agree.  Flushing using the tmpalias mapping handles cache move-in correctly but at the moment
we only have routines to flush whole pages.  I think the big problem is we don't create translations
for non access TLB misses correctly.  See top of page F-11.  We should set access rights to 0 or 1
to prevent I-cache move-in, and the T bit to 1 to prevent D-cache move-in.  As things stands, set up
the TLB entry for non access exceptions the same as we do for normal access exceptions.  As a result,
cache flushes may themselves cause a problem.

I had always wondered why this code is backwards:

void flush_kernel_dcache_page_addr(void *addr)
{
        unsigned long flags;

        flush_kernel_dcache_page_asm(addr);
        purge_tlb_start(flags);
        pdtlb_kernel(addr);
        purge_tlb_end(flags);
}

I did try reversing the order yesterday and it it seemed to increase the number of random segmentation faults.
As it stands, there is a bit of a race between the cache flush and the TLB purge.

Dave
--
John David Anglin	dave.anglin@bell.net



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From - Thu Nov 08 21:40:39 2018
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Newsgroups: gmane.linux.ports.parisc,gmane.linux.serial,gmane.linux.debian.ports.hppa
Subject: Re: Have my PA8800 back online... (serial port missing on v4.14)
Date: Mon, 11 Dec 2017 10:26:38 +0200
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To: Helge Deller <deller@gmx.de>,
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On Fri, 2017-12-08 at 20:06 +0100, Helge Deller wrote:
> Adding the linux-serial mailing list:

Thanks for pointing to this out.
Details are below.

> > > Anyway, the *only* problem we have right now is, that the Linux
> > > kernel 4.14 doesn't detect all serial ports which were detected in
> > > earlier kernels.

> > > Thus the kernel will talk to the non-existant serial port at
> > > 0xfffffffff4050010 instead of 0xfffffffff4050000.

Wait, from this sentence you actually confirm that patch removes *non-
existant* ports.

Can you elaborate what you imply here?

> > > 4.13:
> > > [   28.882849] Serial: 8250/16550 driver, 4 ports, IRQ sharing
> > > enabled
> > > [   28.898720] 0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq
> > > = 73, base_baud = 115200) is a 16450
> > > [   28.934669] 0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq
> > > = 73, base_baud = 115200) is a 16550A
> > > [   28.963031] 0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq
> > > = 73, base_baud = 115200) is a 16550A
> > > [   28.984946] 0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq
> > > = 73, base_baud = 115200) is a 16550A

>From here it looks like multi-function PCI device with two functions
with 1 + 3 serial ports each.

> > > ...but for v4.14.x only the following serial ports are detected:
> > > [   28.671984] Serial: 8250/16550 driver, 4 ports, IRQ sharing
> > > enabled
> > > [   28.708902] 0000:e0:01.1: ttyS0 at MMIO 0xfffffffff4050000 (irq
> > > = 73, base_baud = 115200) is a 16550A
> > > [   28.731145] 0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050010 (irq
> > > = 73, base_baud = 115200) is a 16550A

I'm quite curious how ttyS0 and ttyS3 in previous run (old kernel)
appear.

> > > 
> > > 
> > > Maybe reverting this commit brings back the old behavior:
> > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> > > /commit/?id=7d8905d064058f4b65057e0101588f362f288bc0
> > 
> > I'm unsure about this commit, it speaks more of avoiding duplicate
> > messages
> > for device enabling.

No, it's about trying IRQs twice, though it might be not fully clear
from commit message: the example there shows that IRQs are probed twice
and on some platforms it may be a problem.

> 
> Reverting this commit:
> 
> commit 7d8905d064058f4b65057e0101588f362f288bc0
> Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Date:   Mon Jul 24 20:28:32 2017 +0300
> 
>     serial: 8250_pci: Enable device after we check black list
> 
> indeed fixes the problem.
> 
> After reverting, the serial port from the Diva card shows up as ttyS0
> (as before).

> With that patch applied, the serial port from the Diva card gets
> ignored and the previous ttyS1 port becomes ttyS0 which then breaks
> booting the parisc machine because the kernel expects the serial port
> on
> ttyS1.

> I'm not sure what the best way forward is.
> Fact is, that the patch above changes the behaviour and serial ports
> which were existant before suddenly vanish with kernel 4.14.

As stated in the commit message there "We can do this since PCI
specification requires class, device and vendor ID registers to be
always present in the configuration space."

So, my understanding that the patch reveals the issue with these ports.

(Of course, I agree this is regression and needs to be fixed ASAP)

> This following patch does work, and adds back the Diva serial port on
> parisc.

> Not sure if it's acceptable though.

For me it looks like the best quick solution right now.

The proper one sounds like a specific initialization routine for these
ports.

Send it as a formal patch and you may add

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

P.S. Sorry, we have no parisc hardware around to test.

> 
> Helge
> 
> diff --git a/drivers/tty/serial/8250/8250_pci.c
> b/drivers/tty/serial/8250/8250_pci.c
> index 0c101a7470b0..61319e968e8c 100644
> --- a/drivers/tty/serial/8250/8250_pci.c
> +++ b/drivers/tty/serial/8250/8250_pci.c
> @@ -3393,6 +3393,10 @@ static int
> serial_pci_is_class_communication(struct pci_dev *dev)
>  	 * (Should we try to make guesses for multiport serial
> devices
>  	 * later?)
>  	 */
> +	if (IS_ENABLED(CONFIG_PARISC) &&
> +	    (dev->class >> 8) == PCI_CLASS_COMMUNICATION_OTHER)
> +		return 0;
> +
>  	if ((((dev->class >> 8) != PCI_CLASS_COMMUNICATION_SERIAL) &&
>  	     ((dev->class >> 8) != PCI_CLASS_COMMUNICATION_MODEM)) ||
>  	    (dev->class & 0xff) > 6)

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy
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From - Thu Nov 08 21:40:39 2018
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From: Helge Deller <deller@gmx.de>
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Subject: Re: Have my PA8800 back online...
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On 10.12.2017 00:49, John David Anglin wrote:
> On 2017-12-09, at 4:03 PM, Helge Deller wrote:
> 
>> Can you please try attached patch which disables the serial MUX and ATI card?
>> If it works for you and if we backport it to all kernels and if we revert palo to use ttyS0 for all machines we might be good.
> 
> I hacked on the change but I couldn't get it to work.  As far as I can tell, the quirks aren't being called.
> Tried EARLY, HEADER and FINAL.  I think the ids are correct.

Strange. The attached patch does work for me on panama up until boot.
Haven't tested what lspci reports afterwards...

[    1.832294] LBA 0:7: PCI host bridge to bus 0000:e0
[    1.832497] pci_bus 0000:e0: root bus resource [io  0x60000-0x6ffff] (bus address [0x0000-0xffff])
[    1.833005] pci_bus 0000:e0: root bus resource [mem 0xfffffffff0000000-0xfffffffffe77ffff] (bus address [0xf0000000-0xfe77ffff])
[    1.840028] pci_bus 0000:e0: root bus resource [bus e0-e7]
     1.844276] subsystem_vendor = 0x103c, subsystem_device =0x1291
[    1.848022] pci 0000:e0:01.0: Hiding Diva built-in AUX serial device
     1.849136] subsystem_vendor = 0x103c, subsystem_device =0x1292
[    1.852023] pci 0000:e0:02.0: Hiding Diva built-in ATI card.
....

Helge

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diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index a25fed52f7e9..dbb4158cf098 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1692,3 +1692,45 @@ void lba_set_iregs(struct parisc_device *lba, u32 ibase, u32 imask)
 	iounmap(base_addr);
 }
 
+
+/*
+ * The design of the Diva management card in rp34x0 machines (rp3410, rp3440)
+ * seems rushed, so that many built-in components simply don't work.
+ * The following quirks disable the serial AUX port and the built-in ATI RV100
+ * Radeon 7000 graphics card which both don't have any external connectors and
+ * thus are useless, and even worse, e.g. the AUX ports occupies ttyS0 and
+ * as such makes those machines the only PARISC machines on which we can't
+ * use ttyS0 as boot console.
+ */
+static void quirk_diva_ati_card(struct pci_dev *dev)
+{
+	printk("subsystem_vendor = 0x%x, subsystem_device =0x%x\n",
+		dev->subsystem_vendor, dev->subsystem_device);
+
+	/* subsystem IDs are from Diva */
+	if (dev->subsystem_vendor != PCI_VENDOR_ID_HP ||
+	    dev->subsystem_device != 0x1292)
+		return;
+
+	dev_info(&dev->dev, "Hiding Diva built-in ATI card.");
+	dev->device = 0;
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QY,
+	quirk_diva_ati_card);
+
+static void quirk_diva_aux_disable(struct pci_dev *dev)
+{
+	printk("subsystem_vendor = 0x%x, subsystem_device =0x%x\n",
+		dev->subsystem_vendor, dev->subsystem_device);
+
+	/* subsystem IDs are from Diva */
+	if (dev->subsystem_vendor != PCI_VENDOR_ID_HP ||
+	    dev->subsystem_device != 0x1291)
+		return;
+
+	dev_info(&dev->dev, "Hiding Diva built-in AUX serial device");
+	dev->device = 0;
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_DIVA_AUX,
+	quirk_diva_aux_disable);
+

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On 2017-12-10 4:42 PM, John David Anglin wrote:
> I had always wondered why this code is backwards:
>
> void flush_kernel_dcache_page_addr(void *addr)
> {
>          unsigned long flags;
>
>          flush_kernel_dcache_page_asm(addr);
>          purge_tlb_start(flags);
>          pdtlb_kernel(addr);
>          purge_tlb_end(flags);
> }
>
> I did try reversing the order yesterday and it it seemed to increase the number of random segmentation faults.
> As it stands, there is a bit of a race between the cache flush and the TLB purge.
Actually, the order is understandable given that 
flush_kernel_dcache_page_asm uses the same translation
as regular accesses.  So, purging the translation before the cache flush 
does nothing and speculation can
corrupt the cache.

I think there are a few places where we have the order wrong.

We might be able to use the tmpalias flush_dcache_page_asm routine for 
the above.

Dave

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Subject: Re: Have my PA8800 back online...
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To: Helge Deller <deller@gmx.de>
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On 2017-12-11 9:46 AM, Helge Deller wrote:
> On 10.12.2017 00:49, John David Anglin wrote:
>> On 2017-12-09, at 4:03 PM, Helge Deller wrote:
>>
>>> Can you please try attached patch which disables the serial MUX and ATI card?
>>> If it works for you and if we backport it to all kernels and if we revert palo to use ttyS0 for all machines we might be good.
>> I hacked on the change but I couldn't get it to work.  As far as I can tell, the quirks aren't being called.
>> Tried EARLY, HEADER and FINAL.  I think the ids are correct.
> Strange. The attached patch does work for me on panama up until boot.
> Haven't tested what lspci reports afterwards...
>
> [    1.832294] LBA 0:7: PCI host bridge to bus 0000:e0
> [    1.832497] pci_bus 0000:e0: root bus resource [io  0x60000-0x6ffff] (bus address [0x0000-0xffff])
> [    1.833005] pci_bus 0000:e0: root bus resource [mem 0xfffffffff0000000-0xfffffffffe77ffff] (bus address [0xf0000000-0xfe77ffff])
> [    1.840028] pci_bus 0000:e0: root bus resource [bus e0-e7]
>       1.844276] subsystem_vendor = 0x103c, subsystem_device =0x1291
> [    1.848022] pci 0000:e0:01.0: Hiding Diva built-in AUX serial device
>       1.849136] subsystem_vendor = 0x103c, subsystem_device =0x1292
> [    1.852023] pci 0000:e0:02.0: Hiding Diva built-in ATI card.
> ....

Maybe I messed up build in some way. I didn't clean things between 
builds. I never got the output shown above.
We have period at end of the second message.

Dave

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On 2017-12-11 9:46 AM, Helge Deller wrote:
> Strange. The attached patch does work for me on panama up until boot.
> Haven't tested what lspci reports afterwards...
Yes, it also works for me applied to v4.13.16. ttyS1 is now ttyS0. 
Haven't tried boot
without console argument yet.

lspci still sees the hidden devices which I think is good.

I removed period from one of the dev_info strings. We probably don't 
need printk's
that I added.

Dave

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On 11.12.2017 09:26, Andy Shevchenko wrote:
> On Fri, 2017-12-08 at 20:06 +0100, Helge Deller wrote:
>>>> Anyway, the *only* problem we have right now is, that the Linux
>>>> kernel 4.14 doesn't detect all serial ports which were detected in
>>>> earlier kernels.
> 
>>>> Thus the kernel will talk to the non-existant serial port at
>>>> 0xfffffffff4050010 instead of 0xfffffffff4050000.
> 
> Wait, from this sentence you actually confirm that patch removes *non-
> existant* ports.
> 
> Can you elaborate what you imply here?

The PCI card is a HP "Diva" card, which is basically a server 
remote management board (like HP iLO). 

With "non-existant serial port" I was referring to those few ports
on the Diva card with which one can communicate directly via a proprietary
protocol with the management card.

In older kernels (before your patch) those ports showed up as serial
ports (although they were of no use for the Linux serial driver).
With v4.14 those ports don't show up as ttyS device any longer.  
 
>>>> 4.13:
>>>> [   28.882849] Serial: 8250/16550 driver, 4 ports, IRQ sharing
>>>> enabled
>>>> [   28.898720] 0000:e0:01.0: ttyS0 at MMIO 0xfffffffff4051000 (irq
>>>> = 73, base_baud = 115200) is a 16450
>>>> [   28.934669] 0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050000 (irq
>>>> = 73, base_baud = 115200) is a 16550A
>>>> [   28.963031] 0000:e0:01.1: ttyS2 at MMIO 0xfffffffff4050010 (irq
>>>> = 73, base_baud = 115200) is a 16550A
>>>> [   28.984946] 0000:e0:01.1: ttyS3 at MMIO 0xfffffffff4050038 (irq
>>>> = 73, base_baud = 115200) is a 16550A
> 
> From here it looks like multi-function PCI device with two functions
> with 1 + 3 serial ports each.
> 
>>>> ...but for v4.14.x only the following serial ports are detected:
>>>> [   28.671984] Serial: 8250/16550 driver, 4 ports, IRQ sharing
>>>> enabled
>>>> [   28.708902] 0000:e0:01.1: ttyS0 at MMIO 0xfffffffff4050000 (irq
>>>> = 73, base_baud = 115200) is a 16550A
>>>> [   28.731145] 0000:e0:01.1: ttyS1 at MMIO 0xfffffffff4050010 (irq
>>>> = 73, base_baud = 115200) is a 16550A
> 
> I'm quite curious how ttyS0 and ttyS3 in previous run (old kernel)
> appear.
> 
>>>>
>>>>
>>>> Maybe reverting this commit brings back the old behavior:
>>>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>>>> /commit/?id=7d8905d064058f4b65057e0101588f362f288bc0
>>>
>>> I'm unsure about this commit, it speaks more of avoiding duplicate
>>> messages
>>> for device enabling.
> 
> No, it's about trying IRQs twice, though it might be not fully clear
> from commit message: the example there shows that IRQs are probed twice
> and on some platforms it may be a problem.
> 
>>
>> Reverting this commit:
>>
>> commit 7d8905d064058f4b65057e0101588f362f288bc0
>> Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
>> Date:   Mon Jul 24 20:28:32 2017 +0300
>>
>>     serial: 8250_pci: Enable device after we check black list
>>
>> indeed fixes the problem.
>>
>> After reverting, the serial port from the Diva card shows up as ttyS0
>> (as before).
> 
>> With that patch applied, the serial port from the Diva card gets
>> ignored and the previous ttyS1 port becomes ttyS0 which then breaks
>> booting the parisc machine because the kernel expects the serial port
>> on
>> ttyS1.
> 
>> I'm not sure what the best way forward is.
>> Fact is, that the patch above changes the behaviour and serial ports
>> which were existant before suddenly vanish with kernel 4.14.
> 
> As stated in the commit message there "We can do this since PCI
> specification requires class, device and vendor ID registers to be
> always present in the configuration space."

That's OK.

> So, my understanding that the patch reveals the issue with these ports.

Your patch indirectly changes the behavior.

You check with serial_pci_is_class_communication(dev) if this serial device
is of class SERIAL or MODEM.
If it isn't you exit pciserial_init_one() and don't register the device.

Before your patch this check was inside the function serial_pci_guess_board()
and if (ent->driver_data != pbn_default) the pci serial port got registered 
and initialized *even* if it's *not* of class SERIAL or MODEM.

> (Of course, I agree this is regression and needs to be fixed ASAP)

I don't know if it's easy to fix without reverting your patch.
On the other side, your patch is correct in the sense that it avoids
registering serial ports which shouldn't be registered.
It's just that it now behaves differently and that it breaks booting
Linux on some parisc machines.
 
>> This following patch does work, and adds back the Diva serial port on
>> parisc.
> 
>> Not sure if it's acceptable though.
> 
> For me it looks like the best quick solution right now.
> 
> The proper one sounds like a specific initialization routine for these
> ports.
> 
> Send it as a formal patch and you may add
> 
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Thanks for the offer to accept this patch, but maybe we are able
to come up with another patch which simply hides those unsupported
devices (serial port and ATI graphics card device on the Diva card).
I posted a proposed patch here:
http://www.spinics.net/lists/linux-parisc/msg08187.html

But I wonder if we are the only platform which notice this different
behavior now. I assume others will notice it soon too.

> P.S. Sorry, we have no parisc hardware around to test.

No problem.

Thanks!
Helge
 
>>
>> Helge
>>
>> diff --git a/drivers/tty/serial/8250/8250_pci.c
>> b/drivers/tty/serial/8250/8250_pci.c
>> index 0c101a7470b0..61319e968e8c 100644
>> --- a/drivers/tty/serial/8250/8250_pci.c
>> +++ b/drivers/tty/serial/8250/8250_pci.c
>> @@ -3393,6 +3393,10 @@ static int
>> serial_pci_is_class_communication(struct pci_dev *dev)
>>  	 * (Should we try to make guesses for multiport serial
>> devices
>>  	 * later?)
>>  	 */
>> +	if (IS_ENABLED(CONFIG_PARISC) &&
>> +	    (dev->class >> 8) == PCI_CLASS_COMMUNICATION_OTHER)
>> +		return 0;
>> +
>>  	if ((((dev->class >> 8) != PCI_CLASS_COMMUNICATION_SERIAL) &&
>>  	     ((dev->class >> 8) != PCI_CLASS_COMMUNICATION_MODEM)) ||
>>  	    (dev->class & 0xff) > 6)
> 

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Align os_hpmc_size on word boundry
Date: Tue, 12 Dec 2017 21:25:41 +0100
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The os_hpmc_size variable sometimes wasn't aligned at word boundry and
thus triggered the unaligned fault handler at startup. Fix it by
aligning it properly.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index e3a8e5e4d5de..8d072c44f300 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -305,6 +305,7 @@ ENDPROC_CFI(os_hpmc)
 
 
 	__INITRODATA
+	.align 4
 	.export os_hpmc_size
 os_hpmc_size:
 	.word .os_hpmc_end-.os_hpmc
--
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Fix indenting in puts()
Date: Tue, 12 Dec 2017 21:32:16 +0100
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Static analysis tools complain that we intended to have curly braces
around this indent block. In this case this assumption is wrong, so fix
the indenting.

Fixes: 2f3c7b8137ef ("parisc: Add core code for self-extracting kernel")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/boot/compressed/misc.c b/arch/parisc/boot/compressed/misc.c
index 9345b44b86f0..f57118e1f6b4 100644
--- a/arch/parisc/boot/compressed/misc.c
+++ b/arch/parisc/boot/compressed/misc.c
@@ -123,8 +123,8 @@ int puts(const char *s)
 	while ((nuline = strchr(s, '\n')) != NULL) {
 		if (nuline != s)
 			pdc_iodc_print(s, nuline - s);
-			pdc_iodc_print("\r\n", 2);
-			s = nuline + 1;
+		pdc_iodc_print("\r\n", 2);
+		s = nuline + 1;
 	}
 	if (*s != '\0')
 		pdc_iodc_print(s, strlen(s));
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* John David Anglin <dave.anglin@bell.net>:
> On 2017-12-11 9:46 AM, Helge Deller wrote:
> > Strange. The attached patch does work for me on panama up until boot.
> > Haven't tested what lspci reports afterwards...

> Yes, it also works for me applied to v4.13.16. ttyS1 is now ttyS0.

Good.

> Haven't tried boot without console argument yet.
> lspci still sees the hidden devices which I think is good.

Agreed.

> I removed period from one of the dev_info strings. We probably don't need
> printk's that I added.

Yes, I dropped them.
Here is an updated patch for patchwork:

_________

Hide serial AUX and ATI functions on Diva GSP card

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index a25fed52f7e9..55fb30057d5e 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1692,3 +1692,37 @@ void lba_set_iregs(struct parisc_device *lba, u32 ibase, u32 imask)
 	iounmap(base_addr);
 }
 
+
+/*
+ * The design of the Diva management card in rp34x0 machines (rp3410, rp3440)
+ * seems rushed, so that many built-in components simply don't work.
+ * The following quirks disable the serial AUX port and the built-in ATI RV100
+ * Radeon 7000 graphics card which both don't have any external connectors and
+ * thus are useless, and even worse, e.g. the AUX port occupies ttyS0 and as
+ * such makes those machines the only PARISC machines on which we can't use
+ * ttyS0 as boot console.
+ */
+static void quirk_diva_ati_card(struct pci_dev *dev)
+{
+	if (dev->subsystem_vendor != PCI_VENDOR_ID_HP ||
+	    dev->subsystem_device != 0x1292)
+		return;
+
+	dev_info(&dev->dev, "Hiding Diva built-in ATI card");
+	dev->device = 0;
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QY,
+	quirk_diva_ati_card);
+
+static void quirk_diva_aux_disable(struct pci_dev *dev)
+{
+	if (dev->subsystem_vendor != PCI_VENDOR_ID_HP ||
+	    dev->subsystem_device != 0x1291)
+		return;
+
+	dev_info(&dev->dev, "Hiding Diva built-in AUX serial device");
+	dev->device = 0;
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_DIVA_AUX,
+	quirk_diva_aux_disable);
+
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According to drivers/net/ethernet/dec/tulip/de4x5.c, the driver may 
sleep in the interrupt handler.
The function call path is:
de4x5_interrupt (interrupt handler)
   synchronize_irq --> may sleep

I do not find a good way to fix it, so I only report.
This possible bug is found by my static analysis tool (DSAC) and checked 
by my code review.


Thanks,
Jia-Ju Bai


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On Tue, 2017-12-12 at 21:11 +0100, Helge Deller wrote:
> On 11.12.2017 09:26, Andy Shevchenko wrote:
> > On Fri, 2017-12-08 at 20:06 +0100, Helge Deller wrote:

> Before your patch this check was inside the function
> serial_pci_guess_board()
> and if (ent->driver_data != pbn_default) the pci serial port got
> registered 
> and initialized *even* if it's *not* of class SERIAL or MODEM.

Ah, okay, it explains indeed.
Though PCI devices with wrong class should have their own quirks for my
p.o.v.

> > (Of course, I agree this is regression and needs to be fixed ASAP)
> 
> I don't know if it's easy to fix without reverting your patch.

As I explained earlier it's about pci_enable_device() called twice for
the same device which basically calls pcibios_enable_irq() twice which
might be a problem on some platforms. (At least I have such use case).
Perhaps it's possible to workaround the issue on those platforms, though
I didn't come up with the better solution that time.

> Thanks for the offer to accept this patch, but maybe we are able
> to come up with another patch which simply hides those unsupported
> devices (serial port and ATI graphics card device on the Diva card).
> I posted a proposed patch here:
> http://www.spinics.net/lists/linux-parisc/msg08187.html

Reading briefly that one I guess it's even better (now I realized you
even do not have connectors of those devices outside).

> But I wonder if we are the only platform which notice this different
> behavior now. I assume others will notice it soon too.

Why so? Most of the 8250 PCI devices are enumerated by class. Others
have no such misclassification.

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy
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Hi Linus,

please pull a few important fixes for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.15-2

There are two important fixes:
- Add PCI quirks to disable built-in a serial AUX and a graphics cards from
  specific GSP (management board) PCI cards. This fixes boot via serial console
  on rp3410 and rp3440 machines.

- Revert the "Re-enable interrups early" patch which was added to kernel v4.10.
  It can trigger stack overflows and thus silent data corruption. With this
  patch reverted we can lower our thread stack back to 16kb again.

The other patches are minor cleanups: avoid duplicate includes, indenting
fixes, correctly align variable in asm code.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (3):
      parisc: Fix indenting in puts()
      parisc: Align os_hpmc_size on word boundary
      parisc: Hide Diva-built-in serial aux and graphics card

John David Anglin (2):
      Revert "parisc: Re-enable interrupts early"
      parisc: Reduce thread stack to 16 kb

Pravin Shedge (1):
      parisc: remove duplicate includes

 arch/parisc/boot/compressed/misc.c    |  4 ++--
 arch/parisc/include/asm/thread_info.h |  5 +++++
 arch/parisc/kernel/entry.S            | 12 +++++++++---
 arch/parisc/kernel/hpmc.S             |  1 +
 arch/parisc/kernel/unwind.c           |  1 -
 arch/parisc/lib/delay.c               |  2 --
 drivers/parisc/lba_pci.c              | 33 +++++++++++++++++++++++++++++++++
 7 files changed, 50 insertions(+), 8 deletions(-)


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Hi Andy,

On 13.12.2017 16:16, Andy Shevchenko wrote:
> On Tue, 2017-12-12 at 21:11 +0100, Helge Deller wrote:
>> On 11.12.2017 09:26, Andy Shevchenko wrote:
>>> On Fri, 2017-12-08 at 20:06 +0100, Helge Deller wrote:
> 
>> Before your patch this check was inside the function
>> serial_pci_guess_board()
>> and if (ent->driver_data != pbn_default) the pci serial port got
>> registered 
>> and initialized *even* if it's *not* of class SERIAL or MODEM.
> 
> Ah, okay, it explains indeed.
> Though PCI devices with wrong class should have their own quirks for my
> p.o.v.
> 
>>> (Of course, I agree this is regression and needs to be fixed ASAP)
>>
>> I don't know if it's easy to fix without reverting your patch.
> 
> As I explained earlier it's about pci_enable_device() called twice for
> the same device which basically calls pcibios_enable_irq() twice which
> might be a problem on some platforms. (At least I have such use case).
> Perhaps it's possible to workaround the issue on those platforms, though
> I didn't come up with the better solution that time.
> 
>> Thanks for the offer to accept this patch, but maybe we are able
>> to come up with another patch which simply hides those unsupported
>> devices (serial port and ATI graphics card device on the Diva card).

>> I posted a proposed patch here:
>> http://www.spinics.net/lists/linux-parisc/msg08187.html
> 
> Reading briefly that one I guess it's even better (now I realized you
> even do not have connectors of those devices outside).

It's now fixed for parisc by new PCI quirks which
disable the parisc serial AUX port: 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bcf3f1752a622f1372d3252d0fea8855d89812e7

Thanks,
Helge
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Subject: Re: Have my PA8800 back online... (serial port missing on v4.14)
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On Mon, 2017-12-18 at 21:07 +0100, Helge Deller wrote:
> Hi Andy,
> 
> On 13.12.2017 16:16, Andy Shevchenko wrote:
> > On Tue, 2017-12-12 at 21:11 +0100, Helge Deller wrote:
> > > On 11.12.2017 09:26, Andy Shevchenko wrote:
> > > > 
> > > Thanks for the offer to accept this patch, but maybe we are able
> > > to come up with another patch which simply hides those unsupported
> > > devices (serial port and ATI graphics card device on the Diva
> > > card).
> > > I posted a proposed patch here:
> > > http://www.spinics.net/lists/linux-parisc/msg08187.html
> > 
> > Reading briefly that one I guess it's even better (now I realized
> > you
> > even do not have connectors of those devices outside).
> 
> It's now fixed for parisc by new PCI quirks which
> disable the parisc serial AUX port: 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/com
> mit/?id=bcf3f1752a622f1372d3252d0fea8855d89812e7

Thank you for taking care of this.

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3165>

Almost every architecture supports a direct dma mapping implementation,
where no iommu is used and the device dma address is a 1:1 mapping to
the physical address or has a simple linear offset.  Currently the
code for this implementation is most duplicated over the architectures,
and the duplicated again in the swiotlb code, and then duplicated again
for special cases like the x86 memory encryption DMA ops.

This series takes the existing very simple dma-noop dma mapping
implementation, enhances it with all the x86 features and quirks, and
creates a common set of architecture hooks for it and the swiotlb code.

It then switches a large number of architectures to this generic
direct map implement and the new generic swiotlb dma_map ops.

Note that for now this only handles architectures that do cache coherent
DMA, but a similar consolidation for non-coherent architectures is in the
work for later merge windows.

From - Thu Nov 08 21:40:40 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 01/67] x86: remove X86_PPRO_FENCE
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21878>

There were only a few Pentium Pro multiprocessors systems where this
errata applied. They are more than 20 years old now, and we've slowly
dropped places where put the workarounds in and discuraged anyone
from enabling the workaround.

Get rid of it for good.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/x86/Kconfig.cpu                        | 13 -------------
 arch/x86/entry/vdso/vdso32/vclock_gettime.c |  2 --
 arch/x86/include/asm/barrier.h              | 30 -----------------------------
 arch/x86/include/asm/io.h                   | 15 ---------------
 arch/x86/kernel/pci-nommu.c                 | 19 ------------------
 arch/x86/um/asm/barrier.h                   |  4 ----
 6 files changed, 83 deletions(-)

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 65a9a4716e34..f0c5ef578153 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -315,19 +315,6 @@ config X86_L1_CACHE_SHIFT
 	default "4" if MELAN || M486 || MGEODEGX1
 	default "5" if MWINCHIP3D || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX
 
-config X86_PPRO_FENCE
-	bool "PentiumPro memory ordering errata workaround"
-	depends on M686 || M586MMX || M586TSC || M586 || M486 || MGEODEGX1
-	---help---
-	  Old PentiumPro multiprocessor systems had errata that could cause
-	  memory operations to violate the x86 ordering standard in rare cases.
-	  Enabling this option will attempt to work around some (but not all)
-	  occurrences of this problem, at the cost of much heavier spinlock and
-	  memory barrier operations.
-
-	  If unsure, say n here. Even distro kernels should think twice before
-	  enabling this: there are few systems, and an unlikely bug.
-
 config X86_F00F_BUG
 	def_bool y
 	depends on M586MMX || M586TSC || M586 || M486
diff --git a/arch/x86/entry/vdso/vdso32/vclock_gettime.c b/arch/x86/entry/vdso/vdso32/vclock_gettime.c
index 7780bbfb06ef..9242b28418d5 100644
--- a/arch/x86/entry/vdso/vdso32/vclock_gettime.c
+++ b/arch/x86/entry/vdso/vdso32/vclock_gettime.c
@@ -5,8 +5,6 @@
 #undef CONFIG_OPTIMIZE_INLINING
 #endif
 
-#undef CONFIG_X86_PPRO_FENCE
-
 #ifdef CONFIG_X86_64
 
 /*
diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h
index 7fb336210e1b..aa0f7449d4a4 100644
--- a/arch/x86/include/asm/barrier.h
+++ b/arch/x86/include/asm/barrier.h
@@ -24,11 +24,7 @@
 #define wmb()	asm volatile("sfence" ::: "memory")
 #endif
 
-#ifdef CONFIG_X86_PPRO_FENCE
-#define dma_rmb()	rmb()
-#else
 #define dma_rmb()	barrier()
-#endif
 #define dma_wmb()	barrier()
 
 #ifdef CONFIG_X86_32
@@ -40,30 +36,6 @@
 #define __smp_wmb()	barrier()
 #define __smp_store_mb(var, value) do { (void)xchg(&var, value); } while (0)
 
-#if defined(CONFIG_X86_PPRO_FENCE)
-
-/*
- * For this option x86 doesn't have a strong TSO memory
- * model and we should fall back to full barriers.
- */
-
-#define __smp_store_release(p, v)					\
-do {									\
-	compiletime_assert_atomic_type(*p);				\
-	__smp_mb();							\
-	WRITE_ONCE(*p, v);						\
-} while (0)
-
-#define __smp_load_acquire(p)						\
-({									\
-	typeof(*p) ___p1 = READ_ONCE(*p);				\
-	compiletime_assert_atomic_type(*p);				\
-	__smp_mb();							\
-	___p1;								\
-})
-
-#else /* regular x86 TSO memory ordering */
-
 #define __smp_store_release(p, v)					\
 do {									\
 	compiletime_assert_atomic_type(*p);				\
@@ -79,8 +51,6 @@ do {									\
 	___p1;								\
 })
 
-#endif
-
 /* Atomic operations are already serializing on x86 */
 #define __smp_mb__before_atomic()	barrier()
 #define __smp_mb__after_atomic()	barrier()
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 95e948627fd0..f6e5b9375d8c 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -232,21 +232,6 @@ extern void set_iounmap_nonlazy(void);
  */
 #define __ISA_IO_base ((char __iomem *)(PAGE_OFFSET))
 
-/*
- *	Cache management
- *
- *	This needed for two cases
- *	1. Out of order aware processors
- *	2. Accidentally out of order processors (PPro errata #51)
- */
-
-static inline void flush_write_buffers(void)
-{
-#if defined(CONFIG_X86_PPRO_FENCE)
-	asm volatile("lock; addl $0,0(%%esp)": : :"memory");
-#endif
-}
-
 #endif /* __KERNEL__ */
 
 extern void native_io_delay(void);
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index b0caae27e1b7..c78df78b5ccd 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -37,7 +37,6 @@ static dma_addr_t nommu_map_page(struct device *dev, struct page *page,
 	WARN_ON(size == 0);
 	if (!check_addr("map_single", dev, bus, size))
 		return NOMMU_MAPPING_ERROR;
-	flush_write_buffers();
 	return bus;
 }
 
@@ -72,25 +71,9 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg,
 			return 0;
 		s->dma_length = s->length;
 	}
-	flush_write_buffers();
 	return nents;
 }
 
-static void nommu_sync_single_for_device(struct device *dev,
-			dma_addr_t addr, size_t size,
-			enum dma_data_direction dir)
-{
-	flush_write_buffers();
-}
-
-
-static void nommu_sync_sg_for_device(struct device *dev,
-			struct scatterlist *sg, int nelems,
-			enum dma_data_direction dir)
-{
-	flush_write_buffers();
-}
-
 static int nommu_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
 	return dma_addr == NOMMU_MAPPING_ERROR;
@@ -101,8 +84,6 @@ const struct dma_map_ops nommu_dma_ops = {
 	.free			= dma_generic_free_coherent,
 	.map_sg			= nommu_map_sg,
 	.map_page		= nommu_map_page,
-	.sync_single_for_device = nommu_sync_single_for_device,
-	.sync_sg_for_device	= nommu_sync_sg_for_device,
 	.is_phys		= 1,
 	.mapping_error		= nommu_mapping_error,
 	.dma_supported		= x86_dma_supported,
diff --git a/arch/x86/um/asm/barrier.h b/arch/x86/um/asm/barrier.h
index b7d73400ea29..f31e5d903161 100644
--- a/arch/x86/um/asm/barrier.h
+++ b/arch/x86/um/asm/barrier.h
@@ -30,11 +30,7 @@
 
 #endif /* CONFIG_X86_32 */
 
-#ifdef CONFIG_X86_PPRO_FENCE
-#define dma_rmb()	rmb()
-#else /* CONFIG_X86_PPRO_FENCE */
 #define dma_rmb()	barrier()
-#endif /* CONFIG_X86_PPRO_FENCE */
 #define dma_wmb()	barrier()
 
 #include <asm-generic/barrier.h>
-- 
2.14.2


From - Thu Nov 08 21:40:40 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 02/67] alpha: mark jensen as broken
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Xref: news.gmane.org gmane.linux.kernel.iommu:21879 gmane.linux.ports.mips.general:62922 gmane.linux.ports.ia64:28389 gmane.linux.ports.sh.devel:56035 gmane.linux.ports.sparc:27042 gmane.linux.kernel.cross-arch:40782 gmane.linux.ports.hexagon:1399 gmane.linux.kernel.arc:3167 gmane.linux.kernel.metag:1473 gmane.linux.ports.arm.kernel:622892 gmane.linux.ports.parisc:28064 gmane.linux.kernel:2654208 gmane.linux.ports.alpha:4546 gmane.linux.ports.ppc64.devel:151496
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21879>

CONFIG_ALPHA_JENSEN has failed to compile since commit aca05038
("alpha/dma: use common noop dma ops"), so mark it as broken.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/alpha/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index b31b974a03cb..e96adcbcab41 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -209,6 +209,7 @@ config ALPHA_EIGER
 
 config ALPHA_JENSEN
 	bool "Jensen"
+	depends on BROKEN
 	help
 	  DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
 	  of the first-generation Alpha systems. A number of these systems
-- 
2.14.2


From - Thu Nov 08 21:40:40 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 03/67] dma-mapping: take dma_pfn_offset into account in dma_max_pfn
Date: Fri, 29 Dec 2017 09:18:07 +0100
Lines: 29
Approved: news@gmane.org
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This makes sure the generic version can be used with architectures /
devices that have a DMA offset in the direct mapping.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 include/linux/dma-mapping.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 81ed9b2d84dc..d84951865be7 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -692,7 +692,7 @@ static inline int dma_set_seg_boundary(struct device *dev, unsigned long mask)
 #ifndef dma_max_pfn
 static inline unsigned long dma_max_pfn(struct device *dev)
 {
-	return *dev->dma_mask >> PAGE_SHIFT;
+	return (*dev->dma_mask >> PAGE_SHIFT) + dev->dma_pfn_offset;
 }
 #endif
 
-- 
2.14.2

--
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From - Thu Nov 08 21:40:40 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 04/67] arm64: don't override dma_max_pfn
Date: Fri, 29 Dec 2017 09:18:08 +0100
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Xref: news.gmane.org gmane.linux.kernel.iommu:21881 gmane.linux.ports.mips.general:62924 gmane.linux.ports.ia64:28391 gmane.linux.ports.sh.devel:56037 gmane.linux.ports.sparc:27044 gmane.linux.kernel.cross-arch:40784 gmane.linux.ports.hexagon:1401 gmane.linux.kernel.arc:3169 gmane.linux.kernel.metag:1475 gmane.linux.ports.arm.kernel:622894 gmane.linux.ports.parisc:28066 gmane.linux.kernel:2654210 gmane.linux.ports.alpha:4548 gmane.linux.ports.ppc64.devel:151498
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21881>

The generic version now takes dma_pfn_offset into account, so there is no
more need for an architecture override.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/arm64/include/asm/dma-mapping.h | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 0df756b24863..eada887a93bf 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -76,14 +76,5 @@ static inline void dma_mark_clean(void *addr, size_t size)
 {
 }
 
-/* Override for dma_max_pfn() */
-static inline unsigned long dma_max_pfn(struct device *dev)
-{
-	dma_addr_t dma_max = (dma_addr_t)*dev->dma_mask;
-
-	return (ulong)dma_to_phys(dev, dma_max) >> PAGE_SHIFT;
-}
-#define dma_max_pfn(dev) dma_max_pfn(dev)
-
 #endif	/* __KERNEL__ */
 #endif	/* __ASM_DMA_MAPPING_H */
-- 
2.14.2


From - Thu Nov 08 21:40:40 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 05/67] dma-mapping: replace PCI_DMA_BUS_IS_PHYS with a flag in
	struct dma_map_ops
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Xref: news.gmane.org gmane.linux.kernel.iommu:21882 gmane.linux.ports.mips.general:62925 gmane.linux.ports.ia64:28392 gmane.linux.ports.sh.devel:56038 gmane.linux.ports.sparc:27045 gmane.linux.kernel.cross-arch:40785 gmane.linux.ports.hexagon:1402 gmane.linux.kernel.arc:3170 gmane.linux.kernel.metag:1476 gmane.linux.ports.arm.kernel:622895 gmane.linux.ports.parisc:28067 gmane.linux.kernel:2654211 gmane.linux.ports.alpha:4549 gmane.linux.ports.ppc64.devel:151499
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21882>

The current PCI_DMA_BUS_IS_PHYS decided if a dma implementation is bound
by the dma mask in the device because it directly maps to a physical
address range (modulo an offset in the device), or if it is virtualized
by an iommu and can map any address (that includes virtual iommus like
swiotlb).  The problem with this scheme is that it is per-architecture and
not per dma_ops instance, and we are growing more and more setups that
have multiple different dma operations in use on a single system, for
which this scheme can't provide a correct answer.  Depending on the
architecture that means we either get a false positive or false negative
at the moment.

This patch instead extents the is_phys flag in struct dma_map_ops that
is currently only used by a few architectures to be used tree wide.

Note that this means that we now need a struct device parent in the
Scsi_Host or netdevice.  Every modern driver has these, but there might
still be a few outdated legacy drivers out there, which now won't make
an intelligent decision.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/alpha/include/asm/pci.h          |  5 -----
 arch/alpha/kernel/pci-noop.c          |  1 +
 arch/arc/include/asm/pci.h            |  6 ------
 arch/arc/mm/dma.c                     |  1 +
 arch/arm/include/asm/pci.h            |  7 -------
 arch/arm/mm/dma-mapping-nommu.c       |  1 +
 arch/arm/mm/dma-mapping.c             |  2 ++
 arch/arm64/include/asm/pci.h          |  5 -----
 arch/blackfin/kernel/dma-mapping.c    |  2 ++
 arch/c6x/kernel/dma.c                 |  1 +
 arch/cris/arch-v32/drivers/pci/dma.c  |  1 +
 arch/cris/include/asm/pci.h           |  6 ------
 arch/frv/mb93090-mb00/pci-dma-nommu.c |  1 +
 arch/frv/mb93090-mb00/pci-dma.c       |  1 +
 arch/h8300/include/asm/pci.h          |  2 --
 arch/h8300/kernel/dma.c               |  1 +
 arch/hexagon/kernel/dma.c             |  2 +-
 arch/ia64/hp/common/sba_iommu.c       |  3 ---
 arch/ia64/include/asm/pci.h           | 17 -----------------
 arch/ia64/kernel/setup.c              | 12 ------------
 arch/ia64/sn/kernel/io_common.c       |  5 -----
 arch/m68k/include/asm/pci.h           |  6 ------
 arch/m68k/kernel/dma.c                |  1 +
 arch/metag/kernel/dma.c               |  1 +
 arch/microblaze/include/asm/pci.h     |  6 ------
 arch/microblaze/kernel/dma.c          |  1 +
 arch/mips/include/asm/pci.h           |  7 -------
 arch/mips/mm/dma-default.c            |  1 +
 arch/mn10300/include/asm/pci.h        |  6 ------
 arch/mn10300/mm/dma-alloc.c           |  1 +
 arch/nios2/mm/dma-mapping.c           |  1 +
 arch/openrisc/kernel/dma.c            |  1 +
 arch/parisc/include/asm/pci.h         | 23 -----------------------
 arch/parisc/kernel/pci-dma.c          |  2 ++
 arch/parisc/kernel/setup.c            |  5 -----
 arch/powerpc/include/asm/pci.h        | 18 ------------------
 arch/powerpc/kernel/dma.c             |  1 +
 arch/riscv/include/asm/pci.h          |  3 ---
 arch/s390/include/asm/pci.h           |  2 --
 arch/s390/pci/pci_dma.c               |  3 ---
 arch/sh/include/asm/pci.h             |  6 ------
 arch/sh/kernel/dma-nommu.c            |  2 +-
 arch/sparc/include/asm/pci_32.h       |  4 ----
 arch/sparc/include/asm/pci_64.h       |  6 ------
 arch/sparc/kernel/ioport.c            |  1 +
 arch/tile/include/asm/pci.h           | 14 --------------
 arch/tile/kernel/pci-dma.c            |  2 ++
 arch/x86/include/asm/pci.h            |  2 --
 arch/x86/kernel/pci-nommu.c           |  2 +-
 arch/xtensa/include/asm/pci.h         |  7 -------
 arch/xtensa/kernel/pci-dma.c          |  1 +
 drivers/ide/ide-lib.c                 |  5 ++---
 drivers/ide/ide-probe.c               |  2 +-
 drivers/parisc/ccio-dma.c             |  2 --
 drivers/parisc/sba_iommu.c            |  2 --
 drivers/pci/host/vmd.c                |  1 +
 drivers/scsi/scsi_lib.c               | 14 ++++++--------
 include/asm-generic/pci.h             |  8 --------
 include/linux/dma-mapping.h           | 23 ++++++++++++++++++++++-
 lib/dma-noop.c                        |  1 +
 net/core/dev.c                        | 18 ++++++++----------
 tools/virtio/linux/dma-mapping.h      |  2 --
 62 files changed, 70 insertions(+), 226 deletions(-)

diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h
index b9ec55351924..cf6bc1e64d66 100644
--- a/arch/alpha/include/asm/pci.h
+++ b/arch/alpha/include/asm/pci.h
@@ -56,11 +56,6 @@ struct pci_controller {
 
 /* IOMMU controls.  */
 
-/* The PCI address space does not equal the physical memory address space.
-   The networking and block device layers use this boolean for bounce buffer
-   decisions.  */
-#define PCI_DMA_BUS_IS_PHYS  0
-
 /* TODO: integrate with include/asm-generic/pci.h ? */
 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 {
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index b995987b1557..d3208254b269 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -132,6 +132,7 @@ const struct dma_map_ops alpha_noop_ops = {
 	.map_sg			= dma_noop_map_sg,
 	.mapping_error		= dma_noop_mapping_error,
 	.dma_supported		= alpha_noop_supported,
+	.is_phys		= true,
 };
 
 const struct dma_map_ops *dma_ops = &alpha_noop_ops;
diff --git a/arch/arc/include/asm/pci.h b/arch/arc/include/asm/pci.h
index ba56c23c1b20..4ff53c041c64 100644
--- a/arch/arc/include/asm/pci.h
+++ b/arch/arc/include/asm/pci.h
@@ -16,12 +16,6 @@
 #define PCIBIOS_MIN_MEM 0x100000
 
 #define pcibios_assign_all_busses()	1
-/*
- * The PCI address space does equal the physical memory address space.
- * The networking and block device layers use this boolean for bounce
- * buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS	1
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index e9d93604ad0f..fad18261ef6a 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -274,5 +274,6 @@ const struct dma_map_ops arc_dma_ops = {
 	.sync_sg_for_cpu	= arc_dma_sync_sg_for_cpu,
 	.sync_sg_for_device	= arc_dma_sync_sg_for_device,
 	.dma_supported		= arc_dma_supported,
+	.is_phys		= true,
 };
 EXPORT_SYMBOL(arc_dma_ops);
diff --git a/arch/arm/include/asm/pci.h b/arch/arm/include/asm/pci.h
index 960d9dc4f380..05b2eb2dc76f 100644
--- a/arch/arm/include/asm/pci.h
+++ b/arch/arm/include/asm/pci.h
@@ -22,13 +22,6 @@ static inline int pci_proc_domain(struct pci_bus *bus)
 }
 #endif /* CONFIG_PCI_DOMAINS */
 
-/*
- * The PCI address space does equal the physical memory address space.
- * The networking and block device layers use this boolean for bounce
- * buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS     (1)
-
 #define HAVE_PCI_MMAP
 #define ARCH_GENERIC_PCI_MMAP_RESOURCE
 
diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index 6db5fc26d154..1cced700e45a 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -208,6 +208,7 @@ const struct dma_map_ops arm_nommu_dma_ops = {
 	.sync_single_for_cpu	= arm_nommu_dma_sync_single_for_cpu,
 	.sync_sg_for_device	= arm_nommu_dma_sync_sg_for_device,
 	.sync_sg_for_cpu	= arm_nommu_dma_sync_sg_for_cpu,
+	.is_phys		= true,
 };
 EXPORT_SYMBOL(arm_nommu_dma_ops);
 
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index ada8eb206a90..8e120e2d9cac 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -200,6 +200,7 @@ const struct dma_map_ops arm_dma_ops = {
 	.sync_sg_for_device	= arm_dma_sync_sg_for_device,
 	.mapping_error		= arm_dma_mapping_error,
 	.dma_supported		= arm_dma_supported,
+	.is_phys		= true,
 };
 EXPORT_SYMBOL(arm_dma_ops);
 
@@ -220,6 +221,7 @@ const struct dma_map_ops arm_coherent_dma_ops = {
 	.map_sg			= arm_dma_map_sg,
 	.mapping_error		= arm_dma_mapping_error,
 	.dma_supported		= arm_dma_supported,
+	.is_phys		= true,
 };
 EXPORT_SYMBOL(arm_coherent_dma_ops);
 
diff --git a/arch/arm64/include/asm/pci.h b/arch/arm64/include/asm/pci.h
index 8747f7c5e0e7..9e690686e8aa 100644
--- a/arch/arm64/include/asm/pci.h
+++ b/arch/arm64/include/asm/pci.h
@@ -18,11 +18,6 @@
 #define pcibios_assign_all_busses() \
 	(pci_has_flag(PCI_REASSIGN_ALL_BUS))
 
-/*
- * PCI address space differs from physical memory address space
- */
-#define PCI_DMA_BUS_IS_PHYS	(0)
-
 #define ARCH_GENERIC_PCI_MMAP_RESOURCE	1
 
 extern int isa_dma_bridge_buggy;
diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c
index 477bb29a7987..362902a2a418 100644
--- a/arch/blackfin/kernel/dma-mapping.c
+++ b/arch/blackfin/kernel/dma-mapping.c
@@ -168,5 +168,7 @@ const struct dma_map_ops bfin_dma_ops = {
 
 	.sync_single_for_device	= bfin_dma_sync_single_for_device,
 	.sync_sg_for_device	= bfin_dma_sync_sg_for_device,
+
+	.is_phys		= true,
 };
 EXPORT_SYMBOL(bfin_dma_ops);
diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
index 9fff8be75f58..a526dddeeac1 100644
--- a/arch/c6x/kernel/dma.c
+++ b/arch/c6x/kernel/dma.c
@@ -134,6 +134,7 @@ const struct dma_map_ops c6x_dma_ops = {
 	.sync_single_for_cpu	= c6x_dma_sync_single_for_cpu,
 	.sync_sg_for_device	= c6x_dma_sync_sg_for_device,
 	.sync_sg_for_cpu	= c6x_dma_sync_sg_for_cpu,
+	.is_phys		= true,
 };
 EXPORT_SYMBOL(c6x_dma_ops);
 
diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
index dbbd3816cc0b..aa16ce27e036 100644
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ b/arch/cris/arch-v32/drivers/pci/dma.c
@@ -76,5 +76,6 @@ const struct dma_map_ops v32_dma_ops = {
 	.map_page		= v32_dma_map_page,
 	.map_sg                 = v32_dma_map_sg,
 	.dma_supported		= v32_dma_supported,
+	.is_phys		= true,
 };
 EXPORT_SYMBOL(v32_dma_ops);
diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
index dcfef6407ae6..eb1f7f172f4b 100644
--- a/arch/cris/include/asm/pci.h
+++ b/arch/cris/include/asm/pci.h
@@ -27,12 +27,6 @@
 #include <linux/string.h>
 #include <asm/io.h>
 
-/* The PCI address space does equal the physical memory
- * address space.  The networking and block device layers use
- * this boolean for bounce buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS	(1)
-
 #define HAVE_PCI_MMAP
 #define ARCH_GENERIC_PCI_MMAP_RESOURCE
 
diff --git a/arch/frv/mb93090-mb00/pci-dma-nommu.c b/arch/frv/mb93090-mb00/pci-dma-nommu.c
index 4a96de7f0af4..d58d701619e5 100644
--- a/arch/frv/mb93090-mb00/pci-dma-nommu.c
+++ b/arch/frv/mb93090-mb00/pci-dma-nommu.c
@@ -172,5 +172,6 @@ const struct dma_map_ops frv_dma_ops = {
 	.sync_single_for_device	= frv_dma_sync_single_for_device,
 	.sync_sg_for_device	= frv_dma_sync_sg_for_device,
 	.dma_supported		= frv_dma_supported,
+	.is_phys		= true,
 };
 EXPORT_SYMBOL(frv_dma_ops);
diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c
index e7130abc0dae..8c2e9a40e57e 100644
--- a/arch/frv/mb93090-mb00/pci-dma.c
+++ b/arch/frv/mb93090-mb00/pci-dma.c
@@ -114,5 +114,6 @@ const struct dma_map_ops frv_dma_ops = {
 	.sync_single_for_device	= frv_dma_sync_single_for_device,
 	.sync_sg_for_device	= frv_dma_sync_sg_for_device,
 	.dma_supported		= frv_dma_supported,
+	.is_phys		= true,
 };
 EXPORT_SYMBOL(frv_dma_ops);
diff --git a/arch/h8300/include/asm/pci.h b/arch/h8300/include/asm/pci.h
index 7c9e55d62215..d4d345a52092 100644
--- a/arch/h8300/include/asm/pci.h
+++ b/arch/h8300/include/asm/pci.h
@@ -15,6 +15,4 @@ static inline void pcibios_penalize_isa_irq(int irq, int active)
 	/* We don't do dynamic PCI IRQ allocation */
 }
 
-#define PCI_DMA_BUS_IS_PHYS	(1)
-
 #endif /* _ASM_H8300_PCI_H */
diff --git a/arch/h8300/kernel/dma.c b/arch/h8300/kernel/dma.c
index 225dd0a188dc..0e92214310c4 100644
--- a/arch/h8300/kernel/dma.c
+++ b/arch/h8300/kernel/dma.c
@@ -65,5 +65,6 @@ const struct dma_map_ops h8300_dma_map_ops = {
 	.free = dma_free,
 	.map_page = map_page,
 	.map_sg = map_sg,
+	.is_phys = true,
 };
 EXPORT_SYMBOL(h8300_dma_map_ops);
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index 546792d176a4..3683bb9c05a2 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -207,7 +207,7 @@ const struct dma_map_ops hexagon_dma_ops = {
 	.sync_single_for_cpu = hexagon_sync_single_for_cpu,
 	.sync_single_for_device = hexagon_sync_single_for_device,
 	.mapping_error	= hexagon_mapping_error,
-	.is_phys	= 1,
+	.is_phys	= true,
 };
 
 void __init hexagon_dma_init(void)
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index aec4a3354abe..6f05aba9012f 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -1845,9 +1845,6 @@ static void ioc_init(unsigned long hpa, struct ioc *ioc)
 	ioc_resource_init(ioc);
 	ioc_sac_init(ioc);
 
-	if ((long) ~iovp_mask > (long) ia64_max_iommu_merge_mask)
-		ia64_max_iommu_merge_mask = ~iovp_mask;
-
 	printk(KERN_INFO PFX
 		"%s %d.%d HPA 0x%lx IOVA space %dMb at 0x%lx\n",
 		ioc->name, (ioc->rev >> 4) & 0xF, ioc->rev & 0xF,
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index b1d04e8bafc8..780e8744ba85 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -30,23 +30,6 @@ struct pci_vector_struct {
 #define PCIBIOS_MIN_IO		0x1000
 #define PCIBIOS_MIN_MEM		0x10000000
 
-/*
- * PCI_DMA_BUS_IS_PHYS should be set to 1 if there is _necessarily_ a direct
- * correspondence between device bus addresses and CPU physical addresses.
- * Platforms with a hardware I/O MMU _must_ turn this off to suppress the
- * bounce buffer handling code in the block and network device layers.
- * Platforms with separate bus address spaces _must_ turn this off and provide
- * a device DMA mapping implementation that takes care of the necessary
- * address translation.
- *
- * For now, the ia64 platforms which may have separate/multiple bus address
- * spaces all have I/O MMUs which support the merging of physically
- * discontiguous buffers, so we can use that as the sole factor to determine
- * the setting of PCI_DMA_BUS_IS_PHYS.
- */
-extern unsigned long ia64_max_iommu_merge_mask;
-#define PCI_DMA_BUS_IS_PHYS	(ia64_max_iommu_merge_mask == ~0UL)
-
 #define HAVE_PCI_MMAP
 #define ARCH_GENERIC_PCI_MMAP_RESOURCE
 #define arch_can_pci_mmap_wc()	1
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index dee56bcb993d..ad43cbf70628 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -123,18 +123,6 @@ unsigned long ia64_i_cache_stride_shift = ~0;
 #define	CACHE_STRIDE_SHIFT	5
 unsigned long ia64_cache_stride_shift = ~0;
 
-/*
- * The merge_mask variable needs to be set to (max(iommu_page_size(iommu)) - 1).  This
- * mask specifies a mask of address bits that must be 0 in order for two buffers to be
- * mergeable by the I/O MMU (i.e., the end address of the first buffer and the start
- * address of the second buffer must be aligned to (merge_mask+1) in order to be
- * mergeable).  By default, we assume there is no I/O MMU which can merge physically
- * discontiguous buffers, so we set the merge_mask to ~0UL, which corresponds to a iommu
- * page-size of 2^64.
- */
-unsigned long ia64_max_iommu_merge_mask = ~0UL;
-EXPORT_SYMBOL(ia64_max_iommu_merge_mask);
-
 /*
  * We use a special marker for the end of memory and it uses the extra (+1) slot
  */
diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c
index 11f2275570fb..8479e9a7ce16 100644
--- a/arch/ia64/sn/kernel/io_common.c
+++ b/arch/ia64/sn/kernel/io_common.c
@@ -480,11 +480,6 @@ sn_io_early_init(void)
 	tioca_init_provider();
 	tioce_init_provider();
 
-	/*
-	 * This is needed to avoid bounce limit checks in the blk layer
-	 */
-	ia64_max_iommu_merge_mask = ~PAGE_MASK;
-
 	sn_irq_lh_init();
 	INIT_LIST_HEAD(&sn_sysdata_list);
 	sn_init_cpei_timer();
diff --git a/arch/m68k/include/asm/pci.h b/arch/m68k/include/asm/pci.h
index ef26fae8cf0b..5a4bc223743b 100644
--- a/arch/m68k/include/asm/pci.h
+++ b/arch/m68k/include/asm/pci.h
@@ -4,12 +4,6 @@
 
 #include <asm-generic/pci.h>
 
-/* The PCI address space does equal the physical memory
- * address space.  The networking and block device layers use
- * this boolean for bounce buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS	(1)
-
 #define	pcibios_assign_all_busses()	1
 
 #define	PCIBIOS_MIN_IO		0x00000100
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index 87ef73a93856..e0167418072b 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -165,5 +165,6 @@ const struct dma_map_ops m68k_dma_ops = {
 	.map_sg			= m68k_dma_map_sg,
 	.sync_single_for_device	= m68k_dma_sync_single_for_device,
 	.sync_sg_for_device	= m68k_dma_sync_sg_for_device,
+	.is_phys		= true,
 };
 EXPORT_SYMBOL(m68k_dma_ops);
diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index f0ab3a498328..16cb4df51b8a 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -584,5 +584,6 @@ const struct dma_map_ops metag_dma_ops = {
 	.sync_single_for_cpu	= metag_dma_sync_single_for_cpu,
 	.sync_sg_for_cpu	= metag_dma_sync_sg_for_cpu,
 	.mmap			= metag_dma_mmap,
+	.is_phys		= true,
 };
 EXPORT_SYMBOL(metag_dma_ops);
diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h
index 114b93488193..00478965f932 100644
--- a/arch/microblaze/include/asm/pci.h
+++ b/arch/microblaze/include/asm/pci.h
@@ -61,12 +61,6 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
 
 #define HAVE_PCI_LEGACY	1
 
-/* The PCI address space does equal the physical memory
- * address space (no IOMMU).  The IDE and SCSI device layers use
- * this boolean for bounce buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS     (1)
-
 extern void pcibios_claim_one_bus(struct pci_bus *b);
 
 extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 990bf9ea0ec6..2a9a0ec14c46 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -216,6 +216,7 @@ const struct dma_map_ops dma_direct_ops = {
 	.sync_single_for_device		= dma_direct_sync_single_for_device,
 	.sync_sg_for_cpu		= dma_direct_sync_sg_for_cpu,
 	.sync_sg_for_device		= dma_direct_sync_sg_for_device,
+	.is_phys	= true,
 };
 EXPORT_SYMBOL(dma_direct_ops);
 
diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h
index 2339f42f047a..436099883022 100644
--- a/arch/mips/include/asm/pci.h
+++ b/arch/mips/include/asm/pci.h
@@ -121,13 +121,6 @@ extern unsigned long PCIBIOS_MIN_MEM;
 #include <linux/string.h>
 #include <asm/io.h>
 
-/*
- * The PCI address space does equal the physical memory address space.
- * The networking and block device layers use this boolean for bounce
- * buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS     (1)
-
 #ifdef CONFIG_PCI_DOMAINS_GENERIC
 static inline int pci_proc_domain(struct pci_bus *bus)
 {
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index e3e94d05f0fd..3cd93e0c7a29 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -407,6 +407,7 @@ static const struct dma_map_ops mips_default_dma_map_ops = {
 	.mapping_error = mips_dma_mapping_error,
 	.dma_supported = mips_dma_supported,
 	.cache_sync = mips_dma_cache_sync,
+	.is_phys = true,
 };
 
 const struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index 5b75a1b2c4f6..6132966bdf30 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -57,12 +57,6 @@ extern void unit_pci_init(void);
 #include <linux/string.h>
 #include <asm/io.h>
 
-/* The PCI address space does equal the physical memory
- * address space.  The networking and block device layers use
- * this boolean for bounce buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS	(1)
-
 /* Return the index of the PCI controller for device. */
 static inline int pci_controller_num(struct pci_dev *dev)
 {
diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c
index 86108d2496b3..55876a87c247 100644
--- a/arch/mn10300/mm/dma-alloc.c
+++ b/arch/mn10300/mm/dma-alloc.c
@@ -128,4 +128,5 @@ const struct dma_map_ops mn10300_dma_ops = {
 	.map_sg			= mn10300_dma_map_sg,
 	.sync_single_for_device	= mn10300_dma_sync_single_for_device,
 	.sync_sg_for_device	= mn10300_dma_sync_sg_for_device,
+	.is_phys		= true,
 };
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index 7040c1adbb5e..599bcc09c9e7 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -203,5 +203,6 @@ const struct dma_map_ops nios2_dma_ops = {
 	.sync_single_for_cpu	= nios2_dma_sync_single_for_cpu,
 	.sync_sg_for_cpu	= nios2_dma_sync_sg_for_cpu,
 	.sync_sg_for_device	= nios2_dma_sync_sg_for_device,
+	.is_phys		= true,
 };
 EXPORT_SYMBOL(nios2_dma_ops);
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index a945f00011b4..7faad429d3dc 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -245,6 +245,7 @@ const struct dma_map_ops or1k_dma_map_ops = {
 	.unmap_sg = or1k_unmap_sg,
 	.sync_single_for_cpu = or1k_sync_single_for_cpu,
 	.sync_single_for_device = or1k_sync_single_for_device,
+	.is_phys = true,
 };
 EXPORT_SYMBOL(or1k_dma_map_ops);
 
diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index 96b7deec512d..3328fd17c19d 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -87,29 +87,6 @@ struct pci_hba_data {
 #define PCI_F_EXTEND		0UL
 #endif /* !CONFIG_64BIT */
 
-/*
- * If the PCI device's view of memory is the same as the CPU's view of memory,
- * PCI_DMA_BUS_IS_PHYS is true.  The networking and block device layers use
- * this boolean for bounce buffer decisions.
- */
-#ifdef CONFIG_PA20
-/* All PA-2.0 machines have an IOMMU. */
-#define PCI_DMA_BUS_IS_PHYS	0
-#define parisc_has_iommu()	do { } while (0)
-#else
-
-#if defined(CONFIG_IOMMU_CCIO) || defined(CONFIG_IOMMU_SBA)
-extern int parisc_bus_is_phys; 	/* in arch/parisc/kernel/setup.c */
-#define PCI_DMA_BUS_IS_PHYS	parisc_bus_is_phys
-#define parisc_has_iommu()	do { parisc_bus_is_phys = 0; } while (0)
-#else
-#define PCI_DMA_BUS_IS_PHYS	1
-#define parisc_has_iommu()	do { } while (0)
-#endif
-
-#endif	/* !CONFIG_PA20 */
-
-
 /*
 ** Most PCI devices (eg Tulip, NCR720) also export the same registers
 ** to both MMIO and I/O port space.  Due to poor performance of I/O Port
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index c0dfd892f70c..6ad9aed3d025 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -591,6 +591,7 @@ const struct dma_map_ops pcxl_dma_ops = {
 	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
 	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
 	.cache_sync =		pa11_dma_cache_sync,
+	.is_phys =		true,
 };
 
 static void *pcx_dma_alloc(struct device *dev, size_t size,
@@ -628,4 +629,5 @@ const struct dma_map_ops pcx_dma_ops = {
 	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
 	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
 	.cache_sync =		pa11_dma_cache_sync,
+	.is_phys =		true,
 };
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 0e9675f857a5..8d3a7b80ac42 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -58,11 +58,6 @@ struct proc_dir_entry * proc_runway_root __read_mostly = NULL;
 struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
 struct proc_dir_entry * proc_mckinley_root __read_mostly = NULL;
 
-#if !defined(CONFIG_PA20) && (defined(CONFIG_IOMMU_CCIO) || defined(CONFIG_IOMMU_SBA))
-int parisc_bus_is_phys __read_mostly = 1;	/* Assume no IOMMU is present */
-EXPORT_SYMBOL(parisc_bus_is_phys);
-#endif
-
 void __init setup_cmdline(char **cmdline_p)
 {
 	extern unsigned int boot_args[];
diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index 8dc32eacc97c..04c1347e2c51 100644
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -91,24 +91,6 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
 
 #define HAVE_PCI_LEGACY	1
 
-#ifdef CONFIG_PPC64
-
-/* The PCI address space does not equal the physical memory address
- * space (we have an IOMMU).  The IDE and SCSI device layers use
- * this boolean for bounce buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS	(0)
-
-#else /* 32-bit */
-
-/* The PCI address space does equal the physical memory
- * address space (no IOMMU).  The IDE and SCSI device layers use
- * this boolean for bounce buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS     (1)
-
-#endif /* CONFIG_PPC64 */
-
 extern void pcibios_claim_one_bus(struct pci_bus *b);
 
 extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 4194bbbbdb10..df0e7bb97ab5 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -290,6 +290,7 @@ const struct dma_map_ops dma_direct_ops = {
 	.sync_sg_for_cpu 		= dma_direct_sync_sg,
 	.sync_sg_for_device 		= dma_direct_sync_sg,
 #endif
+	.is_phys			= true,
 };
 EXPORT_SYMBOL(dma_direct_ops);
 
diff --git a/arch/riscv/include/asm/pci.h b/arch/riscv/include/asm/pci.h
index 0f2fc9ef20fc..b3638c505728 100644
--- a/arch/riscv/include/asm/pci.h
+++ b/arch/riscv/include/asm/pci.h
@@ -26,9 +26,6 @@
 /* RISC-V shim does not initialize PCI bus */
 #define pcibios_assign_all_busses() 1
 
-/* We do not have an IOMMU */
-#define PCI_DMA_BUS_IS_PHYS 1
-
 extern int isa_dma_bridge_buggy;
 
 #ifdef CONFIG_PCI
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index 12fe3591034f..94f8db468c9b 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -2,8 +2,6 @@
 #ifndef __ASM_S390_PCI_H
 #define __ASM_S390_PCI_H
 
-/* must be set before including asm-generic/pci.h */
-#define PCI_DMA_BUS_IS_PHYS (0)
 /* must be set before including pci_clp.h */
 #define PCI_BAR_COUNT	6
 
diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index f7aa5a77827e..90826e2010da 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -668,9 +668,6 @@ const struct dma_map_ops s390_pci_dma_ops = {
 	.map_page	= s390_dma_map_pages,
 	.unmap_page	= s390_dma_unmap_pages,
 	.mapping_error	= s390_mapping_error,
-	/* if we support direct DMA this must be conditional */
-	.is_phys	= 0,
-	/* dma_supported is unconditionally true without a callback */
 };
 EXPORT_SYMBOL_GPL(s390_pci_dma_ops);
 
diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h
index 0033f0df2b3b..10a36b1cf2ea 100644
--- a/arch/sh/include/asm/pci.h
+++ b/arch/sh/include/asm/pci.h
@@ -71,12 +71,6 @@ extern unsigned long PCIBIOS_MIN_IO, PCIBIOS_MIN_MEM;
  * SuperH has everything mapped statically like x86.
  */
 
-/* The PCI address space does equal the physical memory
- * address space.  The networking and block device layers use
- * this boolean for bounce buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS	(dma_ops->is_phys)
-
 #ifdef CONFIG_PCI
 /*
  * None of the SH PCI controllers support MWI, it is always treated as a
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 62b485107eae..a2ef7f19610d 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -75,7 +75,7 @@ const struct dma_map_ops nommu_dma_ops = {
 	.sync_single_for_device	= nommu_sync_single_for_device,
 	.sync_sg_for_device	= nommu_sync_sg_for_device,
 #endif
-	.is_phys		= 1,
+	.is_phys		= true,
 };
 
 void __init no_iommu_init(void)
diff --git a/arch/sparc/include/asm/pci_32.h b/arch/sparc/include/asm/pci_32.h
index 98917e48727d..cfc0ee9476c6 100644
--- a/arch/sparc/include/asm/pci_32.h
+++ b/arch/sparc/include/asm/pci_32.h
@@ -17,10 +17,6 @@
 
 #define PCI_IRQ_NONE		0xffffffff
 
-/* Dynamic DMA mapping stuff.
- */
-#define PCI_DMA_BUS_IS_PHYS	(0)
-
 #endif /* __KERNEL__ */
 
 #ifndef CONFIG_LEON_PCI
diff --git a/arch/sparc/include/asm/pci_64.h b/arch/sparc/include/asm/pci_64.h
index 671274e36cfa..fac77813402c 100644
--- a/arch/sparc/include/asm/pci_64.h
+++ b/arch/sparc/include/asm/pci_64.h
@@ -17,12 +17,6 @@
 
 #define PCI_IRQ_NONE		0xffffffff
 
-/* The PCI address space does not equal the physical memory
- * address space.  The networking and block device layers use
- * this boolean for bounce buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS	(0)
-
 /* PCI IOMMU mapping bypass support. */
 
 /* PCI 64-bit addressing works for all slots on all controller
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 7eeef80c02f7..a401e8e0579d 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -656,6 +656,7 @@ const struct dma_map_ops pci32_dma_ops = {
 	.sync_single_for_device	= pci32_sync_single_for_device,
 	.sync_sg_for_cpu	= pci32_sync_sg_for_cpu,
 	.sync_sg_for_device	= pci32_sync_sg_for_device,
+	.is_phys		= true,
 };
 EXPORT_SYMBOL(pci32_dma_ops);
 
diff --git a/arch/tile/include/asm/pci.h b/arch/tile/include/asm/pci.h
index fe3de505b024..8b910e3f0620 100644
--- a/arch/tile/include/asm/pci.h
+++ b/arch/tile/include/asm/pci.h
@@ -52,13 +52,6 @@ static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) {}
 
 #define	TILE_NUM_PCIE	2
 
-/*
- * The hypervisor maps the entirety of CPA-space as bus addresses, so
- * bus addresses are physical addresses.  The networking and block
- * device layers use this boolean for bounce buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS     1
-
 /* generic pci stuff */
 #include <asm-generic/pci.h>
 
@@ -185,13 +178,6 @@ extern int num_trio_shims;
 
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
 
-/*
- * The PCI address space does not equal the physical memory address
- * space (we have an IOMMU). The IDE and SCSI device layers use this
- * boolean for bounce buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS     0
-
 #endif /* __tilegx__ */
 
 int __init tile_pci_init(void);
diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c
index f2abedc8a080..9072e2c25e59 100644
--- a/arch/tile/kernel/pci-dma.c
+++ b/arch/tile/kernel/pci-dma.c
@@ -328,6 +328,7 @@ static const struct dma_map_ops tile_default_dma_map_ops = {
 	.sync_single_for_device = tile_dma_sync_single_for_device,
 	.sync_sg_for_cpu = tile_dma_sync_sg_for_cpu,
 	.sync_sg_for_device = tile_dma_sync_sg_for_device,
+	.is_phys = true,
 };
 
 const struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops;
@@ -501,6 +502,7 @@ static const struct dma_map_ops tile_pci_default_dma_map_ops = {
 	.sync_single_for_device = tile_pci_dma_sync_single_for_device,
 	.sync_sg_for_cpu = tile_pci_dma_sync_sg_for_cpu,
 	.sync_sg_for_device = tile_pci_dma_sync_sg_for_device,
+	.is_phys = true,
 };
 
 const struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops;
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index d32175e30259..fecde74ff549 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -118,8 +118,6 @@ void native_restore_msi_irqs(struct pci_dev *dev);
 #define native_teardown_msi_irq		NULL
 #endif
 
-#define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
-
 #endif  /* __KERNEL__ */
 
 #ifdef CONFIG_X86_64
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index c78df78b5ccd..8ac9d1fe0373 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -84,7 +84,7 @@ const struct dma_map_ops nommu_dma_ops = {
 	.free			= dma_generic_free_coherent,
 	.map_sg			= nommu_map_sg,
 	.map_page		= nommu_map_page,
-	.is_phys		= 1,
 	.mapping_error		= nommu_mapping_error,
 	.dma_supported		= x86_dma_supported,
+	.is_phys		= true,
 };
diff --git a/arch/xtensa/include/asm/pci.h b/arch/xtensa/include/asm/pci.h
index 5c83798e3b2e..7949349294c7 100644
--- a/arch/xtensa/include/asm/pci.h
+++ b/arch/xtensa/include/asm/pci.h
@@ -37,13 +37,6 @@ extern struct pci_controller* pcibios_alloc_controller(void);
 #include <linux/string.h>
 #include <asm/io.h>
 
-/* The PCI address space does equal the physical memory address space.
- * The networking and block device layers use this boolean for bounce buffer
- * decisions.
- */
-
-#define PCI_DMA_BUS_IS_PHYS	(1)
-
 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
 #define HAVE_PCI_MMAP		1
 #define arch_can_pci_mmap_io()	1
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index 623720a11143..4a51996d2919 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -239,6 +239,7 @@ const struct dma_map_ops xtensa_dma_map_ops = {
 	.sync_sg_for_cpu = xtensa_sync_sg_for_cpu,
 	.sync_sg_for_device = xtensa_sync_sg_for_device,
 	.mapping_error = xtensa_dma_mapping_error,
+	.is_phys = true,
 };
 EXPORT_SYMBOL(xtensa_dma_map_ops);
 
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index e1180fa46196..0cdd661ddee0 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -17,13 +17,12 @@
 
 void ide_toggle_bounce(ide_drive_t *drive, int on)
 {
+	struct device *dev = drive->hwif ? drive->hwif->dev : NULL;
 	u64 addr = BLK_BOUNCE_HIGH;	/* dma64_addr_t */
 
-	if (!PCI_DMA_BUS_IS_PHYS) {
+	if (dev && !dma_is_phys(dev)) {
 		addr = BLK_BOUNCE_ANY;
 	} else if (on && drive->media == ide_disk) {
-		struct device *dev = drive->hwif->dev;
-
 		if (dev && dev->dma_mask)
 			addr = *dev->dma_mask;
 	}
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 17fd55af4d92..7fe4d751e6cf 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -796,7 +796,7 @@ static int ide_init_queue(ide_drive_t *drive)
 	 * This will be fixed once we teach pci_map_sg() about our boundary
 	 * requirements, hopefully soon. *FIXME*
 	 */
-	if (!PCI_DMA_BUS_IS_PHYS)
+	if (hwif->dev && !dma_is_phys(hwif->dev))
 		max_sg_entries >>= 1;
 #endif /* CONFIG_PCI */
 
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index acba1f56af3e..2b129d8525d5 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1596,8 +1596,6 @@ static int __init ccio_probe(struct parisc_device *dev)
 	}
 #endif
 	ioc_count++;
-
-	parisc_has_iommu();
 	return 0;
 }
 
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 0a9c762a70fa..a58c586ebd81 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -2017,8 +2017,6 @@ static int __init sba_driver_callback(struct parisc_device *dev)
 	proc_create("sba_iommu", 0, root, &sba_proc_fops);
 	proc_create("sba_iommu-bitmap", 0, root, &sba_proc_bitmap_fops);
 #endif
-
-	parisc_has_iommu();
 	return 0;
 }
 
diff --git a/drivers/pci/host/vmd.c b/drivers/pci/host/vmd.c
index 509893bc3e63..5bb03ad9ed21 100644
--- a/drivers/pci/host/vmd.c
+++ b/drivers/pci/host/vmd.c
@@ -428,6 +428,7 @@ static void vmd_setup_dma_ops(struct vmd_dev *vmd)
 #ifdef ARCH_HAS_DMA_GET_REQUIRED_MASK
 	ASSIGN_VMD_DMA_OPS(source, dest, get_required_mask);
 #endif
+	dest->is_phys = source->is_phys;
 	add_dma_domain(domain);
 }
 #undef ASSIGN_VMD_DMA_OPS
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index d9ca1dfab154..2644214a92ca 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -2105,16 +2105,14 @@ static u64 scsi_calculate_bounce_limit(struct Scsi_Host *shost)
 
 	if (shost->unchecked_isa_dma)
 		return BLK_BOUNCE_ISA;
-	/*
-	 * Platforms with virtual-DMA translation
-	 * hardware have no practical limit.
-	 */
-	if (!PCI_DMA_BUS_IS_PHYS)
-		return BLK_BOUNCE_ANY;
 
 	host_dev = scsi_get_device(shost);
-	if (host_dev && host_dev->dma_mask)
-		bounce_limit = (u64)dma_max_pfn(host_dev) << PAGE_SHIFT;
+	if (host_dev) {
+		if (!dma_is_phys(host_dev))
+			return BLK_BOUNCE_ANY;
+		if (host_dev->dma_mask)
+			bounce_limit = (u64)dma_max_pfn(host_dev) << PAGE_SHIFT;
+	}
 
 	return bounce_limit;
 }
diff --git a/include/asm-generic/pci.h b/include/asm-generic/pci.h
index 830d7659289b..6bb3cd3d695a 100644
--- a/include/asm-generic/pci.h
+++ b/include/asm-generic/pci.h
@@ -14,12 +14,4 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 }
 #endif /* HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ */
 
-/*
- * By default, assume that no iommu is in use and that the PCI
- * space is mapped to address physical 0.
- */
-#ifndef PCI_DMA_BUS_IS_PHYS
-#define PCI_DMA_BUS_IS_PHYS	(1)
-#endif
-
 #endif /* _ASM_GENERIC_PCI_H */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index d84951865be7..e77e2dec4723 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -133,7 +133,14 @@ struct dma_map_ops {
 #ifdef ARCH_HAS_DMA_GET_REQUIRED_MASK
 	u64 (*get_required_mask)(struct device *dev);
 #endif
-	int is_phys;
+
+	/*
+	 * If is_phys is true, the dma_map_ops implementation only does a
+	 * linear mapping from physical to DMA address, and can only address
+	 * memory up to dma_max_pfn().  If is_phys is false DMA is possible
+	 * to any physical address.
+	 */
+	bool is_phys;
 };
 
 extern const struct dma_map_ops dma_noop_ops;
@@ -689,6 +696,20 @@ static inline int dma_set_seg_boundary(struct device *dev, unsigned long mask)
 	return -EIO;
 }
 
+#ifdef CONFIG_HAS_DMA
+static inline bool dma_is_phys(struct device *dev)
+{
+	const struct dma_map_ops *ops = get_dma_ops(dev);
+
+	return ops && ops->is_phys;
+}
+#else
+static inline bool dma_is_phys(struct device *dev)
+{
+	return false;
+}
+#endif
+
 #ifndef dma_max_pfn
 static inline unsigned long dma_max_pfn(struct device *dev)
 {
diff --git a/lib/dma-noop.c b/lib/dma-noop.c
index a10185b0c2d4..c3728a0551f5 100644
--- a/lib/dma-noop.c
+++ b/lib/dma-noop.c
@@ -63,6 +63,7 @@ const struct dma_map_ops dma_noop_ops = {
 	.free			= dma_noop_free,
 	.map_page		= dma_noop_map_page,
 	.map_sg			= dma_noop_map_sg,
+	.is_phys		= true,
 };
 
 EXPORT_SYMBOL(dma_noop_ops);
diff --git a/net/core/dev.c b/net/core/dev.c
index 01ee854454a8..ddf45f9217d4 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2830,6 +2830,7 @@ EXPORT_SYMBOL(netdev_rx_csum_fault);
 static int illegal_highdma(struct net_device *dev, struct sk_buff *skb)
 {
 #ifdef CONFIG_HIGHMEM
+	struct device *pdev = dev->dev.parent;
 	int i;
 
 	if (!(dev->features & NETIF_F_HIGHDMA)) {
@@ -2841,18 +2842,15 @@ static int illegal_highdma(struct net_device *dev, struct sk_buff *skb)
 		}
 	}
 
-	if (PCI_DMA_BUS_IS_PHYS) {
-		struct device *pdev = dev->dev.parent;
+	if (!pdev || !dma_is_phys(pdev))
+		return 0;
 
-		if (!pdev)
-			return 0;
-		for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
-			skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
-			dma_addr_t addr = page_to_phys(skb_frag_page(frag));
+	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+		skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+		dma_addr_t addr = page_to_phys(skb_frag_page(frag));
 
-			if (!pdev->dma_mask || addr + PAGE_SIZE - 1 > *pdev->dma_mask)
-				return 1;
-		}
+		if (!pdev->dma_mask || addr + PAGE_SIZE - 1 > *pdev->dma_mask)
+			return 1;
 	}
 #endif
 	return 0;
diff --git a/tools/virtio/linux/dma-mapping.h b/tools/virtio/linux/dma-mapping.h
index 1571e24e9494..f91aeb5fe571 100644
--- a/tools/virtio/linux/dma-mapping.h
+++ b/tools/virtio/linux/dma-mapping.h
@@ -6,8 +6,6 @@
 # error Virtio userspace code does not support CONFIG_HAS_DMA
 #endif
 
-#define PCI_DMA_BUS_IS_PHYS 1
-
 enum dma_data_direction {
 	DMA_BIDIRECTIONAL = 0,
 	DMA_TO_DEVICE = 1,
-- 
2.14.2


From - Thu Nov 08 21:40:40 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 07/67] m32r: remove unused flush_write_buffers definition
Date: Fri, 29 Dec 2017 09:18:11 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21883>

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/m32r/include/asm/io.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h
index 1b653bb16f9a..a4272d8f0d9c 100644
--- a/arch/m32r/include/asm/io.h
+++ b/arch/m32r/include/asm/io.h
@@ -191,8 +191,6 @@ static inline void _writel(unsigned long l, unsigned long addr)
 
 #define mmiowb()
 
-#define flush_write_buffers() do { } while (0)  /* M32R_FIXME */
-
 static inline void
 memset_io(volatile void __iomem *addr, unsigned char val, int count)
 {
-- 
2.14.2


From - Thu Nov 08 21:40:40 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 08/67] powerpc: remove unused flush_write_buffers definition
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21884>

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/powerpc/include/asm/dma-mapping.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 5a6cbe11db6f..592c7f418aa0 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -107,9 +107,6 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
 		dev->archdata.dma_offset = off;
 }
 
-/* this will be removed soon */
-#define flush_write_buffers()
-
 #define HAVE_ARCH_DMA_SET_MASK 1
 extern int dma_set_mask(struct device *dev, u64 dma_mask);
 
-- 
2.14.2


From - Thu Nov 08 21:40:40 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: [PATCH 09/67] arc: remove CONFIG_ARC_PLAT_NEEDS_PHYS_TO_DMA
Date: Fri, 29 Dec 2017 09:18:13 +0100
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Xref: news.gmane.org gmane.linux.kernel.cross-arch:40788 gmane.linux.kernel.iommu:21885 gmane.linux.ports.alpha:4552 gmane.linux.kernel.arc:3173 gmane.linux.ports.arm.kernel:622898 gmane.linux.ports.hexagon:1405 gmane.linux.ports.ia64:28395 gmane.linux.kernel.metag:1479 gmane.linux.ports.mips.general:62928 gmane.linux.ports.parisc:28070 gmane.linux.ports.ppc64.devel:151502 gmane.linux.ports.sh.devel:56041 gmane.linux.ports.sparc:27048 gmane.linux.kernel:2654214
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/40788>

We always use the stub definitions, so remove the unused other code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arc/Kconfig                   |  3 ---
 arch/arc/include/asm/dma-mapping.h |  7 -------
 arch/arc/mm/dma.c                  | 14 +++++++-------
 3 files changed, 7 insertions(+), 17 deletions(-)

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 9d5fd00d9e91..f3a80cf164cc 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -463,9 +463,6 @@ config ARCH_PHYS_ADDR_T_64BIT
 config ARCH_DMA_ADDR_T_64BIT
 	bool
 
-config ARC_PLAT_NEEDS_PHYS_TO_DMA
-	bool
-
 config ARC_KVADDR_SIZE
 	int "Kernel Virtual Address Space size (MB)"
 	range 0 512
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index 94285031c4fb..7a16824bfe98 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -11,13 +11,6 @@
 #ifndef ASM_ARC_DMA_MAPPING_H
 #define ASM_ARC_DMA_MAPPING_H
 
-#ifndef CONFIG_ARC_PLAT_NEEDS_PHYS_TO_DMA
-#define plat_dma_to_phys(dev, dma_handle) ((phys_addr_t)(dma_handle))
-#define plat_phys_to_dma(dev, paddr) ((dma_addr_t)(paddr))
-#else
-#include <plat/dma.h>
-#endif
-
 extern const struct dma_map_ops arc_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index fad18261ef6a..1d405b86250c 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -60,7 +60,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
 	/* This is linear addr (0x8000_0000 based) */
 	paddr = page_to_phys(page);
 
-	*dma_handle = plat_phys_to_dma(dev, paddr);
+	*dma_handle = paddr;
 
 	/* This is kernel Virtual address (0x7000_0000 based) */
 	if (need_kvaddr) {
@@ -92,7 +92,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
 static void arc_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
-	phys_addr_t paddr = plat_dma_to_phys(dev, dma_handle);
+	phys_addr_t paddr = dma_handle;
 	struct page *page = virt_to_page(paddr);
 	int is_non_coh = 1;
 
@@ -111,7 +111,7 @@ static int arc_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 {
 	unsigned long user_count = vma_pages(vma);
 	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
-	unsigned long pfn = __phys_to_pfn(plat_dma_to_phys(dev, dma_addr));
+	unsigned long pfn = __phys_to_pfn(dma_addr);
 	unsigned long off = vma->vm_pgoff;
 	int ret = -ENXIO;
 
@@ -175,7 +175,7 @@ static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
 	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
 		_dma_cache_sync(paddr, size, dir);
 
-	return plat_phys_to_dma(dev, paddr);
+	return paddr;
 }
 
 /*
@@ -190,7 +190,7 @@ static void arc_dma_unmap_page(struct device *dev, dma_addr_t handle,
 			       size_t size, enum dma_data_direction dir,
 			       unsigned long attrs)
 {
-	phys_addr_t paddr = plat_dma_to_phys(dev, handle);
+	phys_addr_t paddr = handle;
 
 	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
 		_dma_cache_sync(paddr, size, dir);
@@ -224,13 +224,13 @@ static void arc_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
 static void arc_dma_sync_single_for_cpu(struct device *dev,
 		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
 {
-	_dma_cache_sync(plat_dma_to_phys(dev, dma_handle), size, DMA_FROM_DEVICE);
+	_dma_cache_sync(dma_handle, size, DMA_FROM_DEVICE);
 }
 
 static void arc_dma_sync_single_for_device(struct device *dev,
 		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
 {
-	_dma_cache_sync(plat_dma_to_phys(dev, dma_handle), size, DMA_TO_DEVICE);
+	_dma_cache_sync(dma_handle, size, DMA_TO_DEVICE);
 }
 
 static void arc_dma_sync_sg_for_cpu(struct device *dev,
-- 
2.14.2



From - Thu Nov 08 21:40:41 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel.iommu,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 11/67] riscv: remove the unused dma_capable helper
Date: Fri, 29 Dec 2017 09:18:15 +0100
Lines: 30
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/4553>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/riscv/include/asm/dma-mapping.h | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/riscv/include/asm/dma-mapping.h b/arch/riscv/include/asm/dma-mapping.h
index 3eec1000196d..73849e2cc761 100644
--- a/arch/riscv/include/asm/dma-mapping.h
+++ b/arch/riscv/include/asm/dma-mapping.h
@@ -27,12 +27,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &dma_noop_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #endif	/* __ASM_RISCV_DMA_MAPPING_H */
-- 
2.14.2

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From - Thu Nov 08 21:40:41 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 06/67] hexagon: remove unused flush_write_buffers definition
Date: Fri, 29 Dec 2017 09:18:10 +0100
Lines: 26
Approved: news@gmane.org
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Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/hexagon/include/asm/io.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/hexagon/include/asm/io.h b/arch/hexagon/include/asm/io.h
index 66f5e9a61efc..9e8621d94ee9 100644
--- a/arch/hexagon/include/asm/io.h
+++ b/arch/hexagon/include/asm/io.h
@@ -330,8 +330,6 @@ static inline void outsl(unsigned long port, const void *buffer, int count)
 	}
 }
 
-#define flush_write_buffers() do { } while (0)
-
 #endif /* __KERNEL__ */
 
 #endif
-- 
2.14.2

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From - Thu Nov 08 21:40:41 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 10/67] m32r: remove the unused dma_capable helper
Date: Fri, 29 Dec 2017 09:18:14 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21888>

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/m32r/include/asm/dma-mapping.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 336ffe60814b..8967fb659691 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -14,11 +14,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &dma_noop_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #endif /* _ASM_M32R_DMA_MAPPING_H */
-- 
2.14.2


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Subject: [PATCH 13/67] dma-mapping: move swiotlb arch helpers to a new header
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/56045>

phys_to_dma, dma_to_phys and dma_capable are helpers published by
architecture code for use of swiotlb and xen-swiotlb only.  Drivers are
not supposed to use these directly, but use the DMA API instead.

Move these to a new asm/dma-direct.h helper, included by a
linux/dma-direct.h wrapper that provides the default linear mapping
unless the architecture wants to override it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 MAINTAINERS                                        |  1 +
 arch/Kconfig                                       |  4 +++
 arch/arm/Kconfig                                   |  1 +
 arch/arm/include/asm/dma-direct.h                  | 36 ++++++++++++++++++++++
 arch/arm/include/asm/dma-mapping.h                 | 31 -------------------
 arch/arm64/include/asm/dma-mapping.h               | 22 -------------
 arch/arm64/mm/dma-mapping.c                        |  2 +-
 arch/ia64/include/asm/dma-mapping.h                | 18 -----------
 arch/mips/Kconfig                                  |  2 ++
 arch/mips/include/asm/dma-direct.h                 |  1 +
 arch/mips/include/asm/dma-mapping.h                |  8 -----
 .../include/asm/mach-cavium-octeon/dma-coherence.h |  8 +++++
 arch/mips/include/asm/mach-generic/dma-coherence.h | 12 --------
 .../include/asm/mach-loongson64/dma-coherence.h    |  8 +++++
 arch/powerpc/Kconfig                               |  1 +
 arch/powerpc/include/asm/dma-direct.h              | 29 +++++++++++++++++
 arch/powerpc/include/asm/dma-mapping.h             | 25 ---------------
 arch/tile/include/asm/dma-mapping.h                | 18 -----------
 arch/unicore32/include/asm/dma-mapping.h           | 18 -----------
 arch/x86/Kconfig                                   |  1 +
 arch/x86/include/asm/dma-direct.h                  | 30 ++++++++++++++++++
 arch/x86/include/asm/dma-mapping.h                 | 26 ----------------
 arch/x86/kernel/amd_gart_64.c                      |  1 +
 arch/x86/kernel/pci-dma.c                          |  2 +-
 arch/x86/kernel/pci-nommu.c                        |  2 +-
 arch/x86/kernel/pci-swiotlb.c                      |  2 +-
 arch/x86/mm/mem_encrypt.c                          |  2 +-
 arch/x86/pci/sta2x11-fixup.c                       |  1 +
 arch/xtensa/include/asm/dma-mapping.h              | 10 ------
 drivers/crypto/marvell/cesa.c                      |  1 +
 drivers/mtd/nand/qcom_nandc.c                      |  1 +
 drivers/xen/swiotlb-xen.c                          |  2 +-
 include/linux/dma-direct.h                         | 32 +++++++++++++++++++
 lib/swiotlb.c                                      |  2 +-
 34 files changed, 165 insertions(+), 195 deletions(-)
 create mode 100644 arch/arm/include/asm/dma-direct.h
 create mode 100644 arch/mips/include/asm/dma-direct.h
 create mode 100644 arch/powerpc/include/asm/dma-direct.h
 create mode 100644 arch/x86/include/asm/dma-direct.h
 create mode 100644 include/linux/dma-direct.h

diff --git a/MAINTAINERS b/MAINTAINERS
index a6e86e20761e..7521b063b499 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4340,6 +4340,7 @@ F:	lib/dma-noop.c
 F:	lib/dma-virt.c
 F:	drivers/base/dma-mapping.c
 F:	drivers/base/dma-coherent.c
+F:	include/linux/dma-direct.h
 F:	include/linux/dma-mapping.h
 
 DME1737 HARDWARE MONITOR DRIVER
diff --git a/arch/Kconfig b/arch/Kconfig
index 400b9e1b2f27..3edf118ad777 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -938,6 +938,10 @@ config STRICT_MODULE_RWX
 	  and non-text memory will be made non-executable. This provides
 	  protection against certain security exploits (e.g. writing to text)
 
+# select if the architecture provides an asm/dma-direct.h header
+config ARCH_HAS_PHYS_TO_DMA
+	bool
+
 config ARCH_HAS_REFCOUNT
 	bool
 	help
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 51c8df561077..00d889a37965 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -8,6 +8,7 @@ config ARM
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_SET_MEMORY
+	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
 	select ARCH_HAS_STRICT_MODULE_RWX if MMU
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
diff --git a/arch/arm/include/asm/dma-direct.h b/arch/arm/include/asm/dma-direct.h
new file mode 100644
index 000000000000..5b0a8a421894
--- /dev/null
+++ b/arch/arm/include/asm/dma-direct.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_ARM_DMA_DIRECT_H
+#define ASM_ARM_DMA_DIRECT_H 1
+
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	unsigned int offset = paddr & ~PAGE_MASK;
+	return pfn_to_dma(dev, __phys_to_pfn(paddr)) + offset;
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
+{
+	unsigned int offset = dev_addr & ~PAGE_MASK;
+	return __pfn_to_phys(dma_to_pfn(dev, dev_addr)) + offset;
+}
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	u64 limit, mask;
+
+	if (!dev->dma_mask)
+		return 0;
+
+	mask = *dev->dma_mask;
+
+	limit = (mask + 1) & ~mask;
+	if (limit && size > limit)
+		return 0;
+
+	if ((addr | (addr + size - 1)) & ~mask)
+		return 0;
+
+	return 1;
+}
+
+#endif /* ASM_ARM_DMA_DIRECT_H */
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index daf837423a76..5fb1b7fbdfbe 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -109,37 +109,6 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	unsigned int offset = paddr & ~PAGE_MASK;
-	return pfn_to_dma(dev, __phys_to_pfn(paddr)) + offset;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
-{
-	unsigned int offset = dev_addr & ~PAGE_MASK;
-	return __pfn_to_phys(dma_to_pfn(dev, dev_addr)) + offset;
-}
-
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	u64 limit, mask;
-
-	if (!dev->dma_mask)
-		return 0;
-
-	mask = *dev->dma_mask;
-
-	limit = (mask + 1) & ~mask;
-	if (limit && size > limit)
-		return 0;
-
-	if ((addr | (addr + size - 1)) & ~mask)
-		return 0;
-
-	return 1;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size) { }
 
 /**
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index eada887a93bf..400fa67d3b5a 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -50,28 +50,6 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	dma_addr_t dev_addr = (dma_addr_t)paddr;
-
-	return dev_addr - ((dma_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
-{
-	phys_addr_t paddr = (phys_addr_t)dev_addr;
-
-	return paddr + ((phys_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
-}
-
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size)
 {
 }
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index b45c5bcaeccb..f3a637b98487 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -24,7 +24,7 @@
 #include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/genalloc.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/dma-contiguous.h>
 #include <linux/vmalloc.h>
 #include <linux/swiotlb.h>
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index c1bab526a046..eabee56d995c 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -27,22 +27,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return platform_dma_get_ops(NULL);
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr;
-}
-
 #endif /* _ASM_IA64_DMA_MAPPING_H */
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 350a990fc719..4b0c26b2e9b7 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -429,6 +429,7 @@ config MACH_LOONGSON32
 
 config MACH_LOONGSON64
 	bool "Loongson-2/3 family of machines"
+	select ARCH_HAS_PHYS_TO_DMA
 	select SYS_SUPPORTS_ZBOOT
 	help
 	  This enables the support of Loongson-2/3 family of machines.
@@ -877,6 +878,7 @@ config MIKROTIK_RB532
 config CAVIUM_OCTEON_SOC
 	bool "Cavium Networks Octeon SoC based boards"
 	select CEVT_R4K
+	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_PHYS_ADDR_T_64BIT
 	select DMA_COHERENT
 	select SYS_SUPPORTS_64BIT_KERNEL
diff --git a/arch/mips/include/asm/dma-direct.h b/arch/mips/include/asm/dma-direct.h
new file mode 100644
index 000000000000..f32f15530aba
--- /dev/null
+++ b/arch/mips/include/asm/dma-direct.h
@@ -0,0 +1 @@
+#include <asm/dma-coherence.h>
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 0d9418d264f9..676c14cfc580 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -17,14 +17,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return mips_dma_map_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-
-	return addr + size <= *dev->dma_mask;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
 #define arch_setup_dma_ops arch_setup_dma_ops
diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
index 9110988b92a1..f00833acb626 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
@@ -61,6 +61,14 @@ static inline void plat_post_dma_flush(struct device *dev)
 {
 }
 
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size <= *dev->dma_mask;
+}
+
 dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
 phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
 
diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h
index 61addb1677e9..8ad7a40ca786 100644
--- a/arch/mips/include/asm/mach-generic/dma-coherence.h
+++ b/arch/mips/include/asm/mach-generic/dma-coherence.h
@@ -70,16 +70,4 @@ static inline void plat_post_dma_flush(struct device *dev)
 }
 #endif
 
-#ifdef CONFIG_SWIOTLB
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr;
-}
-#endif
-
 #endif /* __ASM_MACH_GENERIC_DMA_COHERENCE_H */
diff --git a/arch/mips/include/asm/mach-loongson64/dma-coherence.h b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
index 1602a9e9e8c2..5cfda8f893e9 100644
--- a/arch/mips/include/asm/mach-loongson64/dma-coherence.h
+++ b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
@@ -17,6 +17,14 @@
 
 struct device;
 
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size <= *dev->dma_mask;
+}
+
 extern dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
 extern phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
 static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c51e6ce42e7a..887285eb684a 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -139,6 +139,7 @@ config PPC
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
+	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_HAS_PMEM_API                if PPC64
 	select ARCH_HAS_SCALED_CPUTIME		if VIRT_CPU_ACCOUNTING_NATIVE
 	select ARCH_HAS_SG_CHAIN
diff --git a/arch/powerpc/include/asm/dma-direct.h b/arch/powerpc/include/asm/dma-direct.h
new file mode 100644
index 000000000000..a5b59c765426
--- /dev/null
+++ b/arch/powerpc/include/asm/dma-direct.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_POWERPC_DMA_DIRECT_H
+#define ASM_POWERPC_DMA_DIRECT_H 1
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+#ifdef CONFIG_SWIOTLB
+	struct dev_archdata *sd = &dev->archdata;
+
+	if (sd->max_direct_dma_addr && addr + size > sd->max_direct_dma_addr)
+		return false;
+#endif
+
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size - 1 <= *dev->dma_mask;
+}
+
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	return paddr + get_dma_offset(dev);
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+{
+	return daddr - get_dma_offset(dev);
+}
+#endif /* ASM_POWERPC_DMA_DIRECT_H */
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 592c7f418aa0..f6ab51205a85 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -112,31 +112,6 @@ extern int dma_set_mask(struct device *dev, u64 dma_mask);
 
 extern u64 __dma_get_required_mask(struct device *dev);
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-#ifdef CONFIG_SWIOTLB
-	struct dev_archdata *sd = &dev->archdata;
-
-	if (sd->max_direct_dma_addr && addr + size > sd->max_direct_dma_addr)
-		return false;
-#endif
-
-	if (!dev->dma_mask)
-		return false;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr + get_dma_offset(dev);
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr - get_dma_offset(dev);
-}
-
 #define ARCH_HAS_DMA_MMAP_COHERENT
 
 #endif /* __KERNEL__ */
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 97ad62878290..75b8aaa4e70b 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -44,26 +44,8 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
 	dev->archdata.dma_offset = off;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #define HAVE_ARCH_DMA_SET_MASK 1
 int dma_set_mask(struct device *dev, u64 mask);
 
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index ac608c2f6af6..5cb250bf2d8c 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -25,24 +25,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &swiotlb_dma_map_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (dev && dev->dma_mask)
-		return addr + size - 1 <= *dev->dma_mask;
-
-	return 1;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
 #endif /* __KERNEL__ */
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d4fc98c50378..f6f4328103c0 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -54,6 +54,7 @@ config X86
 	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_KCOV			if X86_64
+	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_HAS_PMEM_API		if X86_64
 	# Causing hangs/crashes, see the commit that added this change for details.
 	select ARCH_HAS_REFCOUNT
diff --git a/arch/x86/include/asm/dma-direct.h b/arch/x86/include/asm/dma-direct.h
new file mode 100644
index 000000000000..1295bc622ebe
--- /dev/null
+++ b/arch/x86/include/asm/dma-direct.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_X86_DMA_DIRECT_H
+#define ASM_X86_DMA_DIRECT_H 1
+
+#include <linux/mem_encrypt.h>
+
+#ifdef CONFIG_X86_DMA_REMAP /* Platform code defines bridge-specific code */
+bool dma_capable(struct device *dev, dma_addr_t addr, size_t size);
+dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
+phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
+#else
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return 0;
+
+	return addr + size - 1 <= *dev->dma_mask;
+}
+
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	return __sme_set(paddr);
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+{
+	return __sme_clr(daddr);
+}
+#endif /* CONFIG_X86_DMA_REMAP */
+#endif /* ASM_X86_DMA_DIRECT_H */
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 0350d99bb8fd..dfdc9357a349 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -12,7 +12,6 @@
 #include <asm/io.h>
 #include <asm/swiotlb.h>
 #include <linux/dma-contiguous.h>
-#include <linux/mem_encrypt.h>
 
 #ifdef CONFIG_ISA
 # define ISA_DMA_BIT_MASK DMA_BIT_MASK(24)
@@ -42,31 +41,6 @@ extern void dma_generic_free_coherent(struct device *dev, size_t size,
 				      void *vaddr, dma_addr_t dma_addr,
 				      unsigned long attrs);
 
-#ifdef CONFIG_X86_DMA_REMAP /* Platform code defines bridge-specific code */
-extern bool dma_capable(struct device *dev, dma_addr_t addr, size_t size);
-extern dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
-extern phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
-#else
-
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return __sme_set(paddr);
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return __sme_clr(daddr);
-}
-#endif /* CONFIG_X86_DMA_REMAP */
-
 static inline unsigned long dma_alloc_coherent_mask(struct device *dev,
 						    gfp_t gfp)
 {
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index cc0e8bc0ea3f..ecd486cb06ab 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -31,6 +31,7 @@
 #include <linux/io.h>
 #include <linux/gfp.h>
 #include <linux/atomic.h>
+#include <linux/dma-direct.h>
 #include <asm/mtrr.h>
 #include <asm/pgtable.h>
 #include <asm/proto.h>
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 599d7462eccc..8439e6de6156 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/dma-debug.h>
 #include <linux/dmar.h>
 #include <linux/export.h>
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index 8ac9d1fe0373..8b8ff98486de 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Fallback functions when the main IOMMU code is not compiled in. This
    code is roughly equivalent to i386. */
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
 #include <linux/string.h>
 #include <linux/gfp.h>
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 53bd05ea90d8..9d3e35c33d94 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -6,7 +6,7 @@
 #include <linux/init.h>
 #include <linux/swiotlb.h>
 #include <linux/bootmem.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/mem_encrypt.h>
 
 #include <asm/iommu.h>
diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c
index d9a9e9fc75dd..764b916ef7da 100644
--- a/arch/x86/mm/mem_encrypt.c
+++ b/arch/x86/mm/mem_encrypt.c
@@ -15,7 +15,7 @@
 #include <linux/linkage.h>
 #include <linux/init.h>
 #include <linux/mm.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/swiotlb.h>
 #include <linux/mem_encrypt.h>
 
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 53d600217973..75577c1490c4 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -26,6 +26,7 @@
 #include <linux/pci_ids.h>
 #include <linux/export.h>
 #include <linux/list.h>
+#include <linux/dma-direct.h>
 #include <asm/iommu.h>
 
 #define STA2X11_SWIOTLB_SIZE (4*1024*1024)
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 153bf2370988..44098800dad7 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -23,14 +23,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &xtensa_dma_map_ops;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return (dma_addr_t)paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return (phys_addr_t)daddr;
-}
-
 #endif	/* _XTENSA_DMA_MAPPING_H */
diff --git a/drivers/crypto/marvell/cesa.c b/drivers/crypto/marvell/cesa.c
index 293832488cc9..3a0c40081ffb 100644
--- a/drivers/crypto/marvell/cesa.c
+++ b/drivers/crypto/marvell/cesa.c
@@ -24,6 +24,7 @@
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
 #include <linux/module.h>
+#include <linux/dma-direct.h> /* XXX: drivers shall never use this directly! */
 #include <linux/clk.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
diff --git a/drivers/mtd/nand/qcom_nandc.c b/drivers/mtd/nand/qcom_nandc.c
index 2656c1ac5646..411cdfd12a85 100644
--- a/drivers/mtd/nand/qcom_nandc.c
+++ b/drivers/mtd/nand/qcom_nandc.c
@@ -23,6 +23,7 @@
 #include <linux/of_device.h>
 #include <linux/delay.h>
 #include <linux/dma/qcom_bam_dma.h>
+#include <linux/dma-direct.h> /* XXX: drivers shall never use this directly! */
 
 /* NANDc reg offsets */
 #define	NAND_FLASH_CMD			0x00
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 82fc54f8eb77..5bb72d3f8337 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -36,7 +36,7 @@
 #define pr_fmt(fmt) "xen:" KBUILD_MODNAME ": " fmt
 
 #include <linux/bootmem.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/export.h>
 #include <xen/swiotlb-xen.h>
 #include <xen/page.h>
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
new file mode 100644
index 000000000000..2cc1b6558944
--- /dev/null
+++ b/include/linux/dma-direct.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_DMA_DIRECT_H
+#define _LINUX_DMA_DIRECT_H 1
+
+#include <linux/dma-mapping.h>
+
+#ifdef CONFIG_ARCH_HAS_PHYS_TO_DMA
+#include <asm/dma-direct.h>
+#else
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	dma_addr_t dev_addr = (dma_addr_t)paddr;
+
+	return dev_addr - ((dma_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
+{
+	phys_addr_t paddr = (phys_addr_t)dev_addr;
+
+	return paddr + ((phys_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
+}
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size - 1 <= *dev->dma_mask;
+}
+#endif /* !CONFIG_ARCH_HAS_PHYS_TO_DMA */
+#endif /* _LINUX_DMA_DIRECT_H */
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index cea19aaf303c..6583f3512386 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -18,7 +18,7 @@
  */
 
 #include <linux/cache.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/mm.h>
 #include <linux/export.h>
 #include <linux/spinlock.h>
-- 
2.14.2

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From - Thu Nov 08 21:40:41 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 12/67] s390: remove the unused dma_capable helper
Date: Fri, 29 Dec 2017 09:18:16 +0100
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Approved: news@gmane.org
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To: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21890>

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/s390/include/asm/dma-mapping.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index eaf490f9c5bc..2ec7240c1ada 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -16,11 +16,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &dma_noop_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #endif /* _ASM_S390_DMA_MAPPING_H */
-- 
2.14.2


From - Thu Nov 08 21:40:41 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 14/67] dma-mapping: move dma_mark_clean to dma-direct.h
Date: Fri, 29 Dec 2017 09:18:18 +0100
Lines: 153
Approved: news@gmane.org
Message-ID: <20171229081911.2802-15-hch@lst.de>
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And unlike the other helpers we don't require a <asm/dma-direct.h> as
this helper is a special case for ia64 only, and this keeps it as
simple as possible.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arm/include/asm/dma-mapping.h       | 2 --
 arch/arm64/include/asm/dma-mapping.h     | 4 ----
 arch/ia64/Kconfig                        | 1 +
 arch/ia64/include/asm/dma.h              | 2 --
 arch/mips/include/asm/dma-mapping.h      | 2 --
 arch/powerpc/include/asm/swiotlb.h       | 2 --
 arch/tile/include/asm/dma-mapping.h      | 2 --
 arch/unicore32/include/asm/dma-mapping.h | 2 --
 arch/x86/include/asm/swiotlb.h           | 2 --
 include/linux/dma-direct.h               | 9 +++++++++
 10 files changed, 10 insertions(+), 18 deletions(-)

diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 5fb1b7fbdfbe..e5d9020c9ee1 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -109,8 +109,6 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size) { }
-
 /**
  * arm_dma_alloc - allocate consistent memory for DMA
  * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 400fa67d3b5a..b7847eb8a7bb 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -50,9 +50,5 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size)
-{
-}
-
 #endif	/* __KERNEL__ */
 #endif	/* __ASM_DMA_MAPPING_H */
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 49583c5a5d44..4d18fca885ee 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -33,6 +33,7 @@ config IA64
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_VIRT_CPU_ACCOUNTING
+	select ARCH_HAS_DMA_MARK_CLEAN
 	select ARCH_HAS_SG_CHAIN
 	select VIRT_TO_BUS
 	select ARCH_DISCARD_MEMBLOCK
diff --git a/arch/ia64/include/asm/dma.h b/arch/ia64/include/asm/dma.h
index 186850eec934..23604d6a2cb2 100644
--- a/arch/ia64/include/asm/dma.h
+++ b/arch/ia64/include/asm/dma.h
@@ -20,6 +20,4 @@ extern unsigned long MAX_DMA_ADDRESS;
 
 #define free_dma(x)
 
-void dma_mark_clean(void *addr, size_t size);
-
 #endif /* _ASM_IA64_DMA_H */
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 676c14cfc580..886e75a383f2 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -17,8 +17,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return mips_dma_map_ops;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 #define arch_setup_dma_ops arch_setup_dma_ops
 static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base,
 				      u64 size, const struct iommu_ops *iommu,
diff --git a/arch/powerpc/include/asm/swiotlb.h b/arch/powerpc/include/asm/swiotlb.h
index 01d45a5fd00b..9341ee804d19 100644
--- a/arch/powerpc/include/asm/swiotlb.h
+++ b/arch/powerpc/include/asm/swiotlb.h
@@ -15,8 +15,6 @@
 
 extern const struct dma_map_ops swiotlb_dma_ops;
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 extern unsigned int ppc_swiotlb_enable;
 int __init swiotlb_setup_bus_notifier(void);
 
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 75b8aaa4e70b..d25fce101fc0 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -44,8 +44,6 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
 	dev->archdata.dma_offset = off;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 #define HAVE_ARCH_DMA_SET_MASK 1
 int dma_set_mask(struct device *dev, u64 mask);
 
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 5cb250bf2d8c..f2bfec273aa7 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -25,7 +25,5 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &swiotlb_dma_map_ops;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 #endif /* __KERNEL__ */
 #endif
diff --git a/arch/x86/include/asm/swiotlb.h b/arch/x86/include/asm/swiotlb.h
index bdf9aed40403..1c6a6cb230ff 100644
--- a/arch/x86/include/asm/swiotlb.h
+++ b/arch/x86/include/asm/swiotlb.h
@@ -28,8 +28,6 @@ static inline void pci_swiotlb_late_init(void)
 }
 #endif
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 extern void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 					dma_addr_t *dma_handle, gfp_t flags,
 					unsigned long attrs);
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 2cc1b6558944..10e924b7cba7 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -29,4 +29,13 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 	return addr + size - 1 <= *dev->dma_mask;
 }
 #endif /* !CONFIG_ARCH_HAS_PHYS_TO_DMA */
+
+#ifdef CONFIG_ARCH_HAS_DMA_MARK_CLEAN
+void dma_mark_clean(void *addr, size_t size);
+#else
+static inline void dma_mark_clean(void *addr, size_t size)
+{
+}
+#endif /* CONFIG_ARCH_HAS_DMA_MARK_CLEAN */
+
 #endif /* _LINUX_DMA_DIRECT_H */
-- 
2.14.2


From - Thu Nov 08 21:40:41 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 16/67] powerpc: rename dma_direct_ to dma_nommu_
Date: Fri, 29 Dec 2017 09:18:20 +0100
Lines: 536
Approved: news@gmane.org
Message-ID: <20171229081911.2802-17-hch@lst.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/1486>

We want to use the dma_direct_ namespace for a generic implementation,
so rename powerpc to the second best choice: dma_nommu_.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/powerpc/include/asm/dma-mapping.h    |  8 ++--
 arch/powerpc/kernel/dma-iommu.c           |  2 +-
 arch/powerpc/kernel/dma-swiotlb.c         |  6 +--
 arch/powerpc/kernel/dma.c                 | 68 +++++++++++++++----------------
 arch/powerpc/kernel/pci-common.c          |  2 +-
 arch/powerpc/kernel/setup-common.c        |  2 +-
 arch/powerpc/platforms/cell/iommu.c       | 28 ++++++-------
 arch/powerpc/platforms/pasemi/iommu.c     |  2 +-
 arch/powerpc/platforms/pasemi/setup.c     |  2 +-
 arch/powerpc/platforms/powernv/pci-ioda.c |  4 +-
 arch/powerpc/platforms/pseries/iommu.c    |  2 +-
 arch/powerpc/platforms/pseries/vio.c      |  2 +-
 arch/powerpc/sysdev/dart_iommu.c          |  4 +-
 arch/powerpc/sysdev/fsl_pci.c             |  2 +-
 drivers/misc/cxl/vphb.c                   |  2 +-
 15 files changed, 68 insertions(+), 68 deletions(-)

diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index f6ab51205a85..8fa394520af6 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -19,13 +19,13 @@
 #include <asm/swiotlb.h>
 
 /* Some dma direct funcs must be visible for use in other dma_ops */
-extern void *__dma_direct_alloc_coherent(struct device *dev, size_t size,
+extern void *__dma_nommu_alloc_coherent(struct device *dev, size_t size,
 					 dma_addr_t *dma_handle, gfp_t flag,
 					 unsigned long attrs);
-extern void __dma_direct_free_coherent(struct device *dev, size_t size,
+extern void __dma_nommu_free_coherent(struct device *dev, size_t size,
 				       void *vaddr, dma_addr_t dma_handle,
 				       unsigned long attrs);
-extern int dma_direct_mmap_coherent(struct device *dev,
+extern int dma_nommu_mmap_coherent(struct device *dev,
 				    struct vm_area_struct *vma,
 				    void *cpu_addr, dma_addr_t handle,
 				    size_t size, unsigned long attrs);
@@ -73,7 +73,7 @@ static inline unsigned long device_to_mask(struct device *dev)
 #ifdef CONFIG_PPC64
 extern struct dma_map_ops dma_iommu_ops;
 #endif
-extern const struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_nommu_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 66f33e7f8d40..f9fe2080ceb9 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -114,7 +114,7 @@ int dma_iommu_mapping_error(struct device *dev, dma_addr_t dma_addr)
 struct dma_map_ops dma_iommu_ops = {
 	.alloc			= dma_iommu_alloc_coherent,
 	.free			= dma_iommu_free_coherent,
-	.mmap			= dma_direct_mmap_coherent,
+	.mmap			= dma_nommu_mmap_coherent,
 	.map_sg			= dma_iommu_map_sg,
 	.unmap_sg		= dma_iommu_unmap_sg,
 	.dma_supported		= dma_iommu_dma_supported,
diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index d0ea7860e02b..f1e99b9cee97 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -47,9 +47,9 @@ static u64 swiotlb_powerpc_get_required(struct device *dev)
  * for everything else.
  */
 const struct dma_map_ops swiotlb_dma_ops = {
-	.alloc = __dma_direct_alloc_coherent,
-	.free = __dma_direct_free_coherent,
-	.mmap = dma_direct_mmap_coherent,
+	.alloc = __dma_nommu_alloc_coherent,
+	.free = __dma_nommu_free_coherent,
+	.mmap = dma_nommu_mmap_coherent,
 	.map_sg = swiotlb_map_sg_attrs,
 	.unmap_sg = swiotlb_unmap_sg_attrs,
 	.dma_supported = swiotlb_dma_supported,
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index df0e7bb97ab5..5d49da094a93 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -40,7 +40,7 @@ static u64 __maybe_unused get_pfn_limit(struct device *dev)
 	return pfn;
 }
 
-static int dma_direct_dma_supported(struct device *dev, u64 mask)
+static int dma_nommu_dma_supported(struct device *dev, u64 mask)
 {
 #ifdef CONFIG_PPC64
 	u64 limit = get_dma_offset(dev) + (memblock_end_of_DRAM() - 1);
@@ -62,7 +62,7 @@ static int dma_direct_dma_supported(struct device *dev, u64 mask)
 #endif
 }
 
-void *__dma_direct_alloc_coherent(struct device *dev, size_t size,
+void *__dma_nommu_alloc_coherent(struct device *dev, size_t size,
 				  dma_addr_t *dma_handle, gfp_t flag,
 				  unsigned long attrs)
 {
@@ -119,7 +119,7 @@ void *__dma_direct_alloc_coherent(struct device *dev, size_t size,
 #endif
 }
 
-void __dma_direct_free_coherent(struct device *dev, size_t size,
+void __dma_nommu_free_coherent(struct device *dev, size_t size,
 				void *vaddr, dma_addr_t dma_handle,
 				unsigned long attrs)
 {
@@ -130,7 +130,7 @@ void __dma_direct_free_coherent(struct device *dev, size_t size,
 #endif
 }
 
-static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
+static void *dma_nommu_alloc_coherent(struct device *dev, size_t size,
 				       dma_addr_t *dma_handle, gfp_t flag,
 				       unsigned long attrs)
 {
@@ -139,8 +139,8 @@ static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 	/* The coherent mask may be smaller than the real mask, check if
 	 * we can really use the direct ops
 	 */
-	if (dma_direct_dma_supported(dev, dev->coherent_dma_mask))
-		return __dma_direct_alloc_coherent(dev, size, dma_handle,
+	if (dma_nommu_dma_supported(dev, dev->coherent_dma_mask))
+		return __dma_nommu_alloc_coherent(dev, size, dma_handle,
 						   flag, attrs);
 
 	/* Ok we can't ... do we have an iommu ? If not, fail */
@@ -154,15 +154,15 @@ static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 				    dev_to_node(dev));
 }
 
-static void dma_direct_free_coherent(struct device *dev, size_t size,
+static void dma_nommu_free_coherent(struct device *dev, size_t size,
 				     void *vaddr, dma_addr_t dma_handle,
 				     unsigned long attrs)
 {
 	struct iommu_table *iommu;
 
-	/* See comments in dma_direct_alloc_coherent() */
-	if (dma_direct_dma_supported(dev, dev->coherent_dma_mask))
-		return __dma_direct_free_coherent(dev, size, vaddr, dma_handle,
+	/* See comments in dma_nommu_alloc_coherent() */
+	if (dma_nommu_dma_supported(dev, dev->coherent_dma_mask))
+		return __dma_nommu_free_coherent(dev, size, vaddr, dma_handle,
 						  attrs);
 	/* Maybe we used an iommu ... */
 	iommu = get_iommu_table_base(dev);
@@ -175,7 +175,7 @@ static void dma_direct_free_coherent(struct device *dev, size_t size,
 	iommu_free_coherent(iommu, size, vaddr, dma_handle);
 }
 
-int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
+int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 			     void *cpu_addr, dma_addr_t handle, size_t size,
 			     unsigned long attrs)
 {
@@ -193,7 +193,7 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 			       vma->vm_page_prot);
 }
 
-static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
+static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl,
 			     int nents, enum dma_data_direction direction,
 			     unsigned long attrs)
 {
@@ -213,13 +213,13 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
-static void dma_direct_unmap_sg(struct device *dev, struct scatterlist *sg,
+static void dma_nommu_unmap_sg(struct device *dev, struct scatterlist *sg,
 				int nents, enum dma_data_direction direction,
 				unsigned long attrs)
 {
 }
 
-static u64 dma_direct_get_required_mask(struct device *dev)
+static u64 dma_nommu_get_required_mask(struct device *dev)
 {
 	u64 end, mask;
 
@@ -231,7 +231,7 @@ static u64 dma_direct_get_required_mask(struct device *dev)
 	return mask;
 }
 
-static inline dma_addr_t dma_direct_map_page(struct device *dev,
+static inline dma_addr_t dma_nommu_map_page(struct device *dev,
 					     struct page *page,
 					     unsigned long offset,
 					     size_t size,
@@ -246,7 +246,7 @@ static inline dma_addr_t dma_direct_map_page(struct device *dev,
 	return page_to_phys(page) + offset + get_dma_offset(dev);
 }
 
-static inline void dma_direct_unmap_page(struct device *dev,
+static inline void dma_nommu_unmap_page(struct device *dev,
 					 dma_addr_t dma_address,
 					 size_t size,
 					 enum dma_data_direction direction,
@@ -255,7 +255,7 @@ static inline void dma_direct_unmap_page(struct device *dev,
 }
 
 #ifdef CONFIG_NOT_COHERENT_CACHE
-static inline void dma_direct_sync_sg(struct device *dev,
+static inline void dma_nommu_sync_sg(struct device *dev,
 		struct scatterlist *sgl, int nents,
 		enum dma_data_direction direction)
 {
@@ -266,7 +266,7 @@ static inline void dma_direct_sync_sg(struct device *dev,
 		__dma_sync_page(sg_page(sg), sg->offset, sg->length, direction);
 }
 
-static inline void dma_direct_sync_single(struct device *dev,
+static inline void dma_nommu_sync_single(struct device *dev,
 					  dma_addr_t dma_handle, size_t size,
 					  enum dma_data_direction direction)
 {
@@ -274,25 +274,25 @@ static inline void dma_direct_sync_single(struct device *dev,
 }
 #endif
 
-const struct dma_map_ops dma_direct_ops = {
-	.alloc				= dma_direct_alloc_coherent,
-	.free				= dma_direct_free_coherent,
-	.mmap				= dma_direct_mmap_coherent,
-	.map_sg				= dma_direct_map_sg,
-	.unmap_sg			= dma_direct_unmap_sg,
-	.dma_supported			= dma_direct_dma_supported,
-	.map_page			= dma_direct_map_page,
-	.unmap_page			= dma_direct_unmap_page,
-	.get_required_mask		= dma_direct_get_required_mask,
+const struct dma_map_ops dma_nommu_ops = {
+	.alloc				= dma_nommu_alloc_coherent,
+	.free				= dma_nommu_free_coherent,
+	.mmap				= dma_nommu_mmap_coherent,
+	.map_sg				= dma_nommu_map_sg,
+	.unmap_sg			= dma_nommu_unmap_sg,
+	.dma_supported			= dma_nommu_dma_supported,
+	.map_page			= dma_nommu_map_page,
+	.unmap_page			= dma_nommu_unmap_page,
+	.get_required_mask		= dma_nommu_get_required_mask,
 #ifdef CONFIG_NOT_COHERENT_CACHE
-	.sync_single_for_cpu 		= dma_direct_sync_single,
-	.sync_single_for_device 	= dma_direct_sync_single,
-	.sync_sg_for_cpu 		= dma_direct_sync_sg,
-	.sync_sg_for_device 		= dma_direct_sync_sg,
+	.sync_single_for_cpu 		= dma_nommu_sync_single,
+	.sync_single_for_device 	= dma_nommu_sync_single,
+	.sync_sg_for_cpu 		= dma_nommu_sync_sg,
+	.sync_sg_for_device 		= dma_nommu_sync_sg,
 #endif
 	.is_phys			= true,
 };
-EXPORT_SYMBOL(dma_direct_ops);
+EXPORT_SYMBOL(dma_nommu_ops);
 
 int dma_set_coherent_mask(struct device *dev, u64 mask)
 {
@@ -303,7 +303,7 @@ int dma_set_coherent_mask(struct device *dev, u64 mask)
 		 * is no dma_op->set_coherent_mask() so we have to do
 		 * things the hard way:
 		 */
-		if (get_dma_ops(dev) != &dma_direct_ops ||
+		if (get_dma_ops(dev) != &dma_nommu_ops ||
 		    get_iommu_table_base(dev) == NULL ||
 		    !dma_iommu_dma_supported(dev, mask))
 			return -EIO;
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 0ac7aa346c69..590f4d0a6cb1 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -60,7 +60,7 @@ resource_size_t isa_mem_base;
 EXPORT_SYMBOL(isa_mem_base);
 
 
-static const struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
+static const struct dma_map_ops *pci_dma_ops = &dma_nommu_ops;
 
 void set_pci_dma_ops(const struct dma_map_ops *dma_ops)
 {
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 9d213542a48b..9b89df1e71ab 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -791,7 +791,7 @@ void arch_setup_pdev_archdata(struct platform_device *pdev)
 {
 	pdev->archdata.dma_mask = DMA_BIT_MASK(32);
 	pdev->dev.dma_mask = &pdev->archdata.dma_mask;
- 	set_dma_ops(&pdev->dev, &dma_direct_ops);
+ 	set_dma_ops(&pdev->dev, &dma_nommu_ops);
 }
 
 static __init void print_system_info(void)
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 4b91ad08eefd..12352a58072a 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -541,7 +541,7 @@ static struct cbe_iommu *cell_iommu_for_node(int nid)
 	return NULL;
 }
 
-static unsigned long cell_dma_direct_offset;
+static unsigned long cell_dma_nommu_offset;
 
 static unsigned long dma_iommu_fixed_base;
 
@@ -580,7 +580,7 @@ static void *dma_fixed_alloc_coherent(struct device *dev, size_t size,
 					    device_to_mask(dev), flag,
 					    dev_to_node(dev));
 	else
-		return dma_direct_ops.alloc(dev, size, dma_handle, flag,
+		return dma_nommu_ops.alloc(dev, size, dma_handle, flag,
 					    attrs);
 }
 
@@ -592,7 +592,7 @@ static void dma_fixed_free_coherent(struct device *dev, size_t size,
 		iommu_free_coherent(cell_get_iommu_table(dev), size, vaddr,
 				    dma_handle);
 	else
-		dma_direct_ops.free(dev, size, vaddr, dma_handle, attrs);
+		dma_nommu_ops.free(dev, size, vaddr, dma_handle, attrs);
 }
 
 static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page,
@@ -601,7 +601,7 @@ static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page,
 				     unsigned long attrs)
 {
 	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
-		return dma_direct_ops.map_page(dev, page, offset, size,
+		return dma_nommu_ops.map_page(dev, page, offset, size,
 					       direction, attrs);
 	else
 		return iommu_map_page(dev, cell_get_iommu_table(dev), page,
@@ -614,7 +614,7 @@ static void dma_fixed_unmap_page(struct device *dev, dma_addr_t dma_addr,
 				 unsigned long attrs)
 {
 	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
-		dma_direct_ops.unmap_page(dev, dma_addr, size, direction,
+		dma_nommu_ops.unmap_page(dev, dma_addr, size, direction,
 					  attrs);
 	else
 		iommu_unmap_page(cell_get_iommu_table(dev), dma_addr, size,
@@ -626,7 +626,7 @@ static int dma_fixed_map_sg(struct device *dev, struct scatterlist *sg,
 			   unsigned long attrs)
 {
 	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
-		return dma_direct_ops.map_sg(dev, sg, nents, direction, attrs);
+		return dma_nommu_ops.map_sg(dev, sg, nents, direction, attrs);
 	else
 		return ppc_iommu_map_sg(dev, cell_get_iommu_table(dev), sg,
 					nents, device_to_mask(dev),
@@ -638,7 +638,7 @@ static void dma_fixed_unmap_sg(struct device *dev, struct scatterlist *sg,
 			       unsigned long attrs)
 {
 	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
-		dma_direct_ops.unmap_sg(dev, sg, nents, direction, attrs);
+		dma_nommu_ops.unmap_sg(dev, sg, nents, direction, attrs);
 	else
 		ppc_iommu_unmap_sg(cell_get_iommu_table(dev), sg, nents,
 				   direction, attrs);
@@ -661,8 +661,8 @@ static void cell_dma_dev_setup(struct device *dev)
 {
 	if (get_pci_dma_ops() == &dma_iommu_ops)
 		set_iommu_table_base(dev, cell_get_iommu_table(dev));
-	else if (get_pci_dma_ops() == &dma_direct_ops)
-		set_dma_offset(dev, cell_dma_direct_offset);
+	else if (get_pci_dma_ops() == &dma_nommu_ops)
+		set_dma_offset(dev, cell_dma_nommu_offset);
 	else
 		BUG();
 }
@@ -810,14 +810,14 @@ static int __init cell_iommu_init_disabled(void)
 	unsigned long base = 0, size;
 
 	/* When no iommu is present, we use direct DMA ops */
-	set_pci_dma_ops(&dma_direct_ops);
+	set_pci_dma_ops(&dma_nommu_ops);
 
 	/* First make sure all IOC translation is turned off */
 	cell_disable_iommus();
 
 	/* If we have no Axon, we set up the spider DMA magic offset */
 	if (of_find_node_by_name(NULL, "axon") == NULL)
-		cell_dma_direct_offset = SPIDER_DMA_OFFSET;
+		cell_dma_nommu_offset = SPIDER_DMA_OFFSET;
 
 	/* Now we need to check to see where the memory is mapped
 	 * in PCI space. We assume that all busses use the same dma
@@ -851,13 +851,13 @@ static int __init cell_iommu_init_disabled(void)
 		return -ENODEV;
 	}
 
-	cell_dma_direct_offset += base;
+	cell_dma_nommu_offset += base;
 
-	if (cell_dma_direct_offset != 0)
+	if (cell_dma_nommu_offset != 0)
 		cell_pci_controller_ops.dma_dev_setup = cell_pci_dma_dev_setup;
 
 	printk("iommu: disabled, direct DMA offset is 0x%lx\n",
-	       cell_dma_direct_offset);
+	       cell_dma_nommu_offset);
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index 7fec04de27fc..78b80cbd9768 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -186,7 +186,7 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev)
 	 */
 	if (dev->vendor == 0x1959 && dev->device == 0xa007 &&
 	    !firmware_has_feature(FW_FEATURE_LPAR)) {
-		dev->dev.dma_ops = &dma_direct_ops;
+		dev->dev.dma_ops = &dma_nommu_ops;
 		/*
 		 * Set the coherent DMA mask to prevent the iommu
 		 * being used unnecessarily
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index c4a3e93dc324..d0b8ae53660d 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -363,7 +363,7 @@ static int pcmcia_notify(struct notifier_block *nb, unsigned long action,
 		return 0;
 
 	/* We use the direct ops for localbus */
-	dev->dma_ops = &dma_direct_ops;
+	dev->dma_ops = &dma_nommu_ops;
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 749055553064..9582aeb1fe4c 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1850,7 +1850,7 @@ static int pnv_pci_ioda_dma_set_mask(struct pci_dev *pdev, u64 dma_mask)
 
 	if (bypass) {
 		dev_info(&pdev->dev, "Using 64-bit DMA iommu bypass\n");
-		set_dma_ops(&pdev->dev, &dma_direct_ops);
+		set_dma_ops(&pdev->dev, &dma_nommu_ops);
 	} else {
 		/*
 		 * If the device can't set the TCE bypass bit but still wants
@@ -1868,7 +1868,7 @@ static int pnv_pci_ioda_dma_set_mask(struct pci_dev *pdev, u64 dma_mask)
 				return rc;
 			/* 4GB offset bypasses 32-bit space */
 			set_dma_offset(&pdev->dev, (1ULL << 32));
-			set_dma_ops(&pdev->dev, &dma_direct_ops);
+			set_dma_ops(&pdev->dev, &dma_nommu_ops);
 		} else if (dma_mask >> 32 && dma_mask != DMA_BIT_MASK(64)) {
 			/*
 			 * Fail the request if a DMA mask between 32 and 64 bits
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 69921f72e2da..eaa11334fc8c 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1231,7 +1231,7 @@ static int dma_set_mask_pSeriesLP(struct device *dev, u64 dma_mask)
 			if (dma_offset != 0) {
 				dev_info(dev, "Using 64-bit direct DMA at offset %llx\n", dma_offset);
 				set_dma_offset(dev, dma_offset);
-				set_dma_ops(dev, &dma_direct_ops);
+				set_dma_ops(dev, &dma_nommu_ops);
 				ddw_enabled = true;
 			}
 		}
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index d86938260a86..49e04ec19238 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -618,7 +618,7 @@ static u64 vio_dma_get_required_mask(struct device *dev)
 static const struct dma_map_ops vio_dma_mapping_ops = {
 	.alloc             = vio_dma_iommu_alloc_coherent,
 	.free              = vio_dma_iommu_free_coherent,
-	.mmap		   = dma_direct_mmap_coherent,
+	.mmap		   = dma_nommu_mmap_coherent,
 	.map_sg            = vio_dma_iommu_map_sg,
 	.unmap_sg          = vio_dma_iommu_unmap_sg,
 	.map_page          = vio_dma_iommu_map_page,
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 3573d54b2770..a6198d4f0f03 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -402,7 +402,7 @@ static int dart_dma_set_mask(struct device *dev, u64 dma_mask)
 	 */
 	if (dart_device_on_pcie(dev) && dma_mask >= DMA_BIT_MASK(40)) {
 		dev_info(dev, "Using 64-bit DMA iommu bypass\n");
-		set_dma_ops(dev, &dma_direct_ops);
+		set_dma_ops(dev, &dma_nommu_ops);
 	} else {
 		dev_info(dev, "Using 32-bit DMA via iommu\n");
 		set_dma_ops(dev, &dma_iommu_ops);
@@ -446,7 +446,7 @@ void __init iommu_init_early_dart(struct pci_controller_ops *controller_ops)
 	controller_ops->dma_bus_setup = NULL;
 
 	/* Setup pci_dma ops */
-	set_pci_dma_ops(&dma_direct_ops);
+	set_pci_dma_ops(&dma_nommu_ops);
 }
 
 #ifdef CONFIG_PM
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 22d98057f773..e4d0133bbeeb 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -135,7 +135,7 @@ static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask)
 	 * mapping that allows addressing any RAM address from across PCI.
 	 */
 	if (dev_is_pci(dev) && dma_mask >= pci64_dma_offset * 2 - 1) {
-		set_dma_ops(dev, &dma_direct_ops);
+		set_dma_ops(dev, &dma_nommu_ops);
 		set_dma_offset(dev, pci64_dma_offset);
 	}
 
diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c
index 512a4897dbf6..7fd0bdc1436a 100644
--- a/drivers/misc/cxl/vphb.c
+++ b/drivers/misc/cxl/vphb.c
@@ -54,7 +54,7 @@ static bool cxl_pci_enable_device_hook(struct pci_dev *dev)
 		return false;
 	}
 
-	set_dma_ops(&dev->dev, &dma_direct_ops);
+	set_dma_ops(&dev->dev, &dma_nommu_ops);
 	set_dma_offset(&dev->dev, PAGE_OFFSET);
 
 	return _cxl_pci_associate_default_context(dev, afu);
-- 
2.14.2


From - Thu Nov 08 21:40:41 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 15/67] hexagon: use the generic dma_capable helper
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Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/hexagon/include/asm/dma-mapping.h | 7 -------
 arch/hexagon/kernel/dma.c              | 1 +
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index 5208de242e79..263f6acbfb0f 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -37,11 +37,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return dma_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #endif
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index 3683bb9c05a2..c1d24e37807c 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -19,6 +19,7 @@
  */
 
 #include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/bootmem.h>
 #include <linux/genalloc.h>
 #include <asm/dma-mapping.h>
-- 
2.14.2


From - Thu Nov 08 21:40:41 2018
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Subject: [PATCH 17/67] microblaze: rename dma_direct to dma_microblaze
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This frees the dma_direct_* namespace for a generic implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/microblaze/include/asm/dma-mapping.h |  4 +--
 arch/microblaze/kernel/dma.c              | 50 +++++++++++++++----------------
 2 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 6b9ea39405b8..add50c1373bf 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -18,11 +18,11 @@
 /*
  * Available generic sets of operations
  */
-extern const struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_nommu_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	return &dma_direct_ops;
+	return &dma_nommu_ops;
 }
 
 #endif	/* _ASM_MICROBLAZE_DMA_MAPPING_H */
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 2a9a0ec14c46..364b0ac41452 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -17,7 +17,7 @@
 
 #define NOT_COHERENT_CACHE
 
-static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
+static void *dma_nommu_alloc_coherent(struct device *dev, size_t size,
 				       dma_addr_t *dma_handle, gfp_t flag,
 				       unsigned long attrs)
 {
@@ -42,7 +42,7 @@ static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 #endif
 }
 
-static void dma_direct_free_coherent(struct device *dev, size_t size,
+static void dma_nommu_free_coherent(struct device *dev, size_t size,
 				     void *vaddr, dma_addr_t dma_handle,
 				     unsigned long attrs)
 {
@@ -69,7 +69,7 @@ static inline void __dma_sync(unsigned long paddr,
 	}
 }
 
-static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
+static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl,
 			     int nents, enum dma_data_direction direction,
 			     unsigned long attrs)
 {
@@ -89,12 +89,12 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
-static int dma_direct_dma_supported(struct device *dev, u64 mask)
+static int dma_nommu_dma_supported(struct device *dev, u64 mask)
 {
 	return 1;
 }
 
-static inline dma_addr_t dma_direct_map_page(struct device *dev,
+static inline dma_addr_t dma_nommu_map_page(struct device *dev,
 					     struct page *page,
 					     unsigned long offset,
 					     size_t size,
@@ -106,7 +106,7 @@ static inline dma_addr_t dma_direct_map_page(struct device *dev,
 	return page_to_phys(page) + offset;
 }
 
-static inline void dma_direct_unmap_page(struct device *dev,
+static inline void dma_nommu_unmap_page(struct device *dev,
 					 dma_addr_t dma_address,
 					 size_t size,
 					 enum dma_data_direction direction,
@@ -122,7 +122,7 @@ static inline void dma_direct_unmap_page(struct device *dev,
 }
 
 static inline void
-dma_direct_sync_single_for_cpu(struct device *dev,
+dma_nommu_sync_single_for_cpu(struct device *dev,
 			       dma_addr_t dma_handle, size_t size,
 			       enum dma_data_direction direction)
 {
@@ -136,7 +136,7 @@ dma_direct_sync_single_for_cpu(struct device *dev,
 }
 
 static inline void
-dma_direct_sync_single_for_device(struct device *dev,
+dma_nommu_sync_single_for_device(struct device *dev,
 				  dma_addr_t dma_handle, size_t size,
 				  enum dma_data_direction direction)
 {
@@ -150,7 +150,7 @@ dma_direct_sync_single_for_device(struct device *dev,
 }
 
 static inline void
-dma_direct_sync_sg_for_cpu(struct device *dev,
+dma_nommu_sync_sg_for_cpu(struct device *dev,
 			   struct scatterlist *sgl, int nents,
 			   enum dma_data_direction direction)
 {
@@ -164,7 +164,7 @@ dma_direct_sync_sg_for_cpu(struct device *dev,
 }
 
 static inline void
-dma_direct_sync_sg_for_device(struct device *dev,
+dma_nommu_sync_sg_for_device(struct device *dev,
 			      struct scatterlist *sgl, int nents,
 			      enum dma_data_direction direction)
 {
@@ -178,7 +178,7 @@ dma_direct_sync_sg_for_device(struct device *dev,
 }
 
 static
-int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
+int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 			     void *cpu_addr, dma_addr_t handle, size_t size,
 			     unsigned long attrs)
 {
@@ -204,21 +204,21 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 #endif
 }
 
-const struct dma_map_ops dma_direct_ops = {
-	.alloc		= dma_direct_alloc_coherent,
-	.free		= dma_direct_free_coherent,
-	.mmap		= dma_direct_mmap_coherent,
-	.map_sg		= dma_direct_map_sg,
-	.dma_supported	= dma_direct_dma_supported,
-	.map_page	= dma_direct_map_page,
-	.unmap_page	= dma_direct_unmap_page,
-	.sync_single_for_cpu		= dma_direct_sync_single_for_cpu,
-	.sync_single_for_device		= dma_direct_sync_single_for_device,
-	.sync_sg_for_cpu		= dma_direct_sync_sg_for_cpu,
-	.sync_sg_for_device		= dma_direct_sync_sg_for_device,
-	.is_phys	= true,
+const struct dma_map_ops dma_nommu_ops = {
+	.alloc			= dma_nommu_alloc_coherent,
+	.free			= dma_nommu_free_coherent,
+	.mmap			= dma_nommu_mmap_coherent,
+	.map_sg			= dma_nommu_map_sg,
+	.dma_supported		= dma_nommu_dma_supported,
+	.map_page		= dma_nommu_map_page,
+	.unmap_page		= dma_nommu_unmap_page,
+	.sync_single_for_cpu	= dma_nommu_sync_single_for_cpu,
+	.sync_single_for_device	= dma_nommu_sync_single_for_device,
+	.sync_sg_for_cpu	= dma_nommu_sync_sg_for_cpu,
+	.sync_sg_for_device	= dma_nommu_sync_sg_for_device,
+	.is_phys		= true,
 };
-EXPORT_SYMBOL(dma_direct_ops);
+EXPORT_SYMBOL(dma_nommu_ops);
 
 /* Number of entries preallocated for DMA-API debugging */
 #define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-- 
2.14.2


From - Thu Nov 08 21:40:41 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 19/67] microblaze: remove the dead !NOT_COHERENT_CACHE dma code
Date: Fri, 29 Dec 2017 09:18:23 +0100
Lines: 68
Approved: news@gmane.org
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Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/microblaze/kernel/dma.c | 28 ----------------------------
 1 file changed, 28 deletions(-)

diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 49b09648679b..031d889670f5 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -15,42 +15,18 @@
 #include <linux/bug.h>
 #include <asm/cacheflush.h>
 
-#define NOT_COHERENT_CACHE
-
 static void *dma_nommu_alloc_coherent(struct device *dev, size_t size,
 				       dma_addr_t *dma_handle, gfp_t flag,
 				       unsigned long attrs)
 {
-#ifdef NOT_COHERENT_CACHE
 	return consistent_alloc(flag, size, dma_handle);
-#else
-	void *ret;
-	struct page *page;
-	int node = dev_to_node(dev);
-
-	/* ignore region specifiers */
-	flag  &= ~(__GFP_HIGHMEM);
-
-	page = alloc_pages_node(node, flag, get_order(size));
-	if (page == NULL)
-		return NULL;
-	ret = page_address(page);
-	memset(ret, 0, size);
-	*dma_handle = virt_to_phys(ret);
-
-	return ret;
-#endif
 }
 
 static void dma_nommu_free_coherent(struct device *dev, size_t size,
 				     void *vaddr, dma_addr_t dma_handle,
 				     unsigned long attrs)
 {
-#ifdef NOT_COHERENT_CACHE
 	consistent_free(size, vaddr);
-#else
-	free_pages((unsigned long)vaddr, get_order(size));
-#endif
 }
 
 static inline void __dma_sync(unsigned long paddr,
@@ -186,12 +162,8 @@ int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 	if (off >= count || user_count > (count - off))
 		return -ENXIO;
 
-#ifdef NOT_COHERENT_CACHE
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 	pfn = consistent_virt_to_pfn(cpu_addr);
-#else
-	pfn = virt_to_pfn(cpu_addr);
-#endif
 	return remap_pfn_range(vma, vma->vm_start, pfn + off,
 			       vma->vm_end - vma->vm_start, vma->vm_page_prot);
 #else
-- 
2.14.2


From - Thu Nov 08 21:40:41 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 18/67] microblaze: remove dma_nommu_dma_supported
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Xref: news.gmane.org gmane.linux.kernel.iommu:21896 gmane.linux.ports.mips.general:62939 gmane.linux.ports.ia64:28406 gmane.linux.ports.sh.devel:56052 gmane.linux.ports.sparc:27059 gmane.linux.kernel.cross-arch:40799 gmane.linux.ports.hexagon:1416 gmane.linux.kernel.arc:3184 gmane.linux.kernel.metag:1490 gmane.linux.ports.arm.kernel:622909 gmane.linux.ports.parisc:28081 gmane.linux.kernel:2654226 gmane.linux.ports.alpha:4563 gmane.linux.ports.ppc64.devel:151513
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21896>

Always returning 1 is the same behavior as not supplying a method at all.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/microblaze/kernel/dma.c | 6 ------
 arch/parisc/kernel/pci-dma.c | 7 -------
 2 files changed, 13 deletions(-)

diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 364b0ac41452..49b09648679b 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -89,11 +89,6 @@ static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
-static int dma_nommu_dma_supported(struct device *dev, u64 mask)
-{
-	return 1;
-}
-
 static inline dma_addr_t dma_nommu_map_page(struct device *dev,
 					     struct page *page,
 					     unsigned long offset,
@@ -209,7 +204,6 @@ const struct dma_map_ops dma_nommu_ops = {
 	.free			= dma_nommu_free_coherent,
 	.mmap			= dma_nommu_mmap_coherent,
 	.map_sg			= dma_nommu_map_sg,
-	.dma_supported		= dma_nommu_dma_supported,
 	.map_page		= dma_nommu_map_page,
 	.unmap_page		= dma_nommu_unmap_page,
 	.sync_single_for_cpu	= dma_nommu_sync_single_for_cpu,
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 6ad9aed3d025..2a05457f7aab 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -75,11 +75,6 @@ void dump_resmap(void)
 static inline void dump_resmap(void) {;}
 #endif
 
-static int pa11_dma_supported( struct device *dev, u64 mask)
-{
-	return 1;
-}
-
 static inline int map_pte_uncached(pte_t * pte,
 		unsigned long vaddr,
 		unsigned long size, unsigned long *paddr_ptr)
@@ -579,7 +574,6 @@ static void pa11_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 }
 
 const struct dma_map_ops pcxl_dma_ops = {
-	.dma_supported =	pa11_dma_supported,
 	.alloc =		pa11_dma_alloc,
 	.free =			pa11_dma_free,
 	.map_page =		pa11_dma_map_page,
@@ -617,7 +611,6 @@ static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
 }
 
 const struct dma_map_ops pcx_dma_ops = {
-	.dma_supported =	pa11_dma_supported,
 	.alloc =		pcx_dma_alloc,
 	.free =			pcx_dma_free,
 	.map_page =		pa11_dma_map_page,
-- 
2.14.2


From - Thu Nov 08 21:40:41 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 22/67] dma-mapping: clear harmful GFP_* flags in common code
Date: Fri, 29 Dec 2017 09:18:26 +0100
Lines: 204
Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.ports.parisc:28082 gmane.linux.kernel.iommu:21897 gmane.linux.ports.alpha:4564 gmane.linux.kernel.arc:3185 gmane.linux.ports.arm.kernel:622910 gmane.linux.ports.hexagon:1417 gmane.linux.ports.ia64:28407 gmane.linux.kernel.metag:1491 gmane.linux.ports.mips.general:62940 gmane.linux.ports.ppc64.devel:151514 gmane.linux.ports.sh.devel:56053 gmane.linux.ports.sparc:27060 gmane.linux.kernel.cross-arch:40800 gmane.linux.kernel:2654227
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/28082>

Life the code from x86 so that we behave consistently.  In the future we
should probably warn if any of these is set.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/cris/arch-v32/drivers/pci/dma.c      | 3 ---
 arch/h8300/kernel/dma.c                   | 3 ---
 arch/m68k/kernel/dma.c                    | 2 --
 arch/mips/cavium-octeon/dma-octeon.c      | 3 ---
 arch/mips/loongson64/common/dma-swiotlb.c | 3 ---
 arch/mips/mm/dma-default.c                | 3 ---
 arch/mips/netlogic/common/nlm-dma.c       | 3 ---
 arch/mn10300/mm/dma-alloc.c               | 3 ---
 arch/nios2/mm/dma-mapping.c               | 3 ---
 arch/powerpc/kernel/dma.c                 | 3 ---
 arch/x86/kernel/pci-dma.c                 | 2 --
 include/linux/dma-mapping.h               | 7 +++++++
 12 files changed, 7 insertions(+), 31 deletions(-)

diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
index aa16ce27e036..c7e3056885d3 100644
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ b/arch/cris/arch-v32/drivers/pci/dma.c
@@ -22,9 +22,6 @@ static void *v32_dma_alloc(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
 	if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff))
 		gfp |= GFP_DMA;
 
diff --git a/arch/h8300/kernel/dma.c b/arch/h8300/kernel/dma.c
index 0e92214310c4..4e27b74df973 100644
--- a/arch/h8300/kernel/dma.c
+++ b/arch/h8300/kernel/dma.c
@@ -16,9 +16,6 @@ static void *dma_alloc(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
 	if (dev == NULL || (*dev->dma_mask < 0xffffffff))
 		gfp |= GFP_DMA;
 	ret = (void *)__get_free_pages(gfp, get_order(size));
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index e0167418072b..2f3492e8295c 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -76,8 +76,6 @@ static void *m68k_dma_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
 
 	if (dev == NULL || (*dev->dma_mask < 0xffffffff))
 		gfp |= GFP_DMA;
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index c64bd87f0b6e..5baf79fce643 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -161,9 +161,6 @@ static void *octeon_dma_alloc_coherent(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
-
 	if (IS_ENABLED(CONFIG_ZONE_DMA) && dev == NULL)
 		gfp |= __GFP_DMA;
 	else if (IS_ENABLED(CONFIG_ZONE_DMA) &&
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index ef07740cee61..15388c24a504 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -15,9 +15,6 @@ static void *loongson_dma_alloc_coherent(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
-
 	if ((IS_ENABLED(CONFIG_ISA) && dev == NULL) ||
 	    (IS_ENABLED(CONFIG_ZONE_DMA) &&
 	     dev->coherent_dma_mask < DMA_BIT_MASK(32)))
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 3cd93e0c7a29..6f6b1399e98e 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -93,9 +93,6 @@ static gfp_t massage_gfp_flags(const struct device *dev, gfp_t gfp)
 {
 	gfp_t dma_flag;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
-
 #ifdef CONFIG_ISA
 	if (dev == NULL)
 		dma_flag = __GFP_DMA;
diff --git a/arch/mips/netlogic/common/nlm-dma.c b/arch/mips/netlogic/common/nlm-dma.c
index 0ec9d9da6d51..49c975b6aa28 100644
--- a/arch/mips/netlogic/common/nlm-dma.c
+++ b/arch/mips/netlogic/common/nlm-dma.c
@@ -47,9 +47,6 @@ static char *nlm_swiotlb;
 static void *nlm_dma_alloc_coherent(struct device *dev, size_t size,
 	dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
-
 #ifdef CONFIG_ZONE_DMA32
 	if (dev->coherent_dma_mask <= DMA_BIT_MASK(32))
 		gfp |= __GFP_DMA32;
diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c
index 55876a87c247..2629f1f4b04e 100644
--- a/arch/mn10300/mm/dma-alloc.c
+++ b/arch/mn10300/mm/dma-alloc.c
@@ -37,9 +37,6 @@ static void *mn10300_dma_alloc(struct device *dev, size_t size,
 		goto done;
 	}
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
 	if (dev == NULL || dev->coherent_dma_mask < 0xffffffff)
 		gfp |= GFP_DMA;
 
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index 599bcc09c9e7..9e54f8cb3459 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -63,9 +63,6 @@ static void *nios2_dma_alloc(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
 	/* optimized page clearing */
 	gfp |= __GFP_ZERO;
 
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 5d49da094a93..1723001d5de1 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -105,9 +105,6 @@ void *__dma_nommu_alloc_coherent(struct device *dev, size_t size,
 	};
 #endif /* CONFIG_FSL_SOC */
 
-	/* ignore region specifiers */
-	flag  &= ~(__GFP_HIGHMEM);
-
 	page = alloc_pages_node(node, flag, get_order(size));
 	if (page == NULL)
 		return NULL;
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 8439e6de6156..61a8f1cb3829 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -87,7 +87,6 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 
 	dma_mask = dma_alloc_coherent_mask(dev, flag);
 
-	flag &= ~__GFP_ZERO;
 again:
 	page = NULL;
 	/* CMA can be used only in the context which permits sleeping */
@@ -139,7 +138,6 @@ bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp)
 	if (!*dev)
 		*dev = &x86_dma_fallback_dev;
 
-	*gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
 	*gfp = dma_alloc_coherent_gfp_flags(*dev, *gfp);
 
 	if (!is_device_dma_capable(*dev))
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 2779d544485c..fd5197af882a 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -525,6 +525,13 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
 	if (dma_alloc_from_dev_coherent(dev, size, dma_handle, &cpu_addr))
 		return cpu_addr;
 
+	/*
+	 * Let the implementation decide on the zone to allocate from, and
+	 * decide on the way of zeroing the memory given that the memory
+	 * returned should always be zeroed.
+	 */
+	flag &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM | __GFP_ZERO);
+
 	if (!arch_dma_alloc_attrs(&dev, &flag))
 		return NULL;
 	if (!ops->alloc)
-- 
2.14.2

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From - Thu Nov 08 21:40:41 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
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Subject: [PATCH 20/67] s390: move s390_pci_dma_ops to asm/pci_dma.h
Date: Fri, 29 Dec 2017 09:18:24 +0100
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Approved: news@gmane.org
Message-ID: <20171229081911.2802-21-hch@lst.de>
References: <20171229081911.2802-1-hch@lst.de>
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Xref: news.gmane.org gmane.linux.kernel.iommu:21898 gmane.linux.ports.mips.general:62941 gmane.linux.ports.ia64:28408 gmane.linux.ports.sh.devel:56054 gmane.linux.ports.sparc:27061 gmane.linux.kernel.cross-arch:40801 gmane.linux.ports.hexagon:1418 gmane.linux.kernel.arc:3186 gmane.linux.kernel.metag:1492 gmane.linux.ports.arm.kernel:622911 gmane.linux.ports.parisc:28083 gmane.linux.kernel:2654228 gmane.linux.ports.alpha:4565 gmane.linux.ports.ppc64.devel:151515
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21898>

This is not needed in drivers, so move it to a private header.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/s390/include/asm/dma-mapping.h | 2 --
 arch/s390/include/asm/pci_dma.h     | 3 +++
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 2ec7240c1ada..bdc2455483f6 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -9,8 +9,6 @@
 #include <linux/dma-debug.h>
 #include <linux/io.h>
 
-extern const struct dma_map_ops s390_pci_dma_ops;
-
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &dma_noop_ops;
diff --git a/arch/s390/include/asm/pci_dma.h b/arch/s390/include/asm/pci_dma.h
index e8d9161fa17a..419fac7a62c0 100644
--- a/arch/s390/include/asm/pci_dma.h
+++ b/arch/s390/include/asm/pci_dma.h
@@ -201,4 +201,7 @@ void dma_cleanup_tables(unsigned long *);
 unsigned long *dma_walk_cpu_trans(unsigned long *rto, dma_addr_t dma_addr);
 void dma_update_cpu_trans(unsigned long *entry, void *page_addr, int flags);
 
+extern const struct dma_map_ops s390_pci_dma_ops;
+
+
 #endif
-- 
2.14.2


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Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 24/67] dma-mapping: provide a generic asm/dma-mapping.h
Date: Fri, 29 Dec 2017 09:18:28 +0100
Lines: 172
Approved: news@gmane.org
Message-ID: <20171229081911.2802-25-hch@lst.de>
References: <20171229081911.2802-1-hch@lst.de>
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Xref: news.gmane.org gmane.linux.ports.sparc:27062 gmane.linux.kernel.iommu:21899 gmane.linux.ports.alpha:4566 gmane.linux.kernel.arc:3187 gmane.linux.ports.arm.kernel:622912 gmane.linux.ports.hexagon:1419 gmane.linux.ports.ia64:28409 gmane.linux.kernel.metag:1493 gmane.linux.ports.mips.general:62942 gmane.linux.ports.parisc:28084 gmane.linux.ports.ppc64.devel:151516 gmane.linux.ports.sh.devel:56055 gmane.linux.kernel.cross-arch:40802 gmane.linux.kernel:2654229
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/27062>

For architectures that just use the generic dma_noop_ops we can provide
a generic version of dma-mapping.h.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 MAINTAINERS                          |  1 +
 arch/m32r/include/asm/Kbuild         |  1 +
 arch/m32r/include/asm/dma-mapping.h  | 17 -----------------
 arch/riscv/include/asm/Kbuild        |  1 +
 arch/riscv/include/asm/dma-mapping.h | 30 ------------------------------
 arch/s390/include/asm/Kbuild         |  1 +
 arch/s390/include/asm/dma-mapping.h  | 17 -----------------
 include/asm-generic/dma-mapping.h    | 10 ++++++++++
 8 files changed, 14 insertions(+), 64 deletions(-)
 delete mode 100644 arch/m32r/include/asm/dma-mapping.h
 delete mode 100644 arch/riscv/include/asm/dma-mapping.h
 delete mode 100644 arch/s390/include/asm/dma-mapping.h
 create mode 100644 include/asm-generic/dma-mapping.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 7521b063b499..a8b35d9f41b2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4340,6 +4340,7 @@ F:	lib/dma-noop.c
 F:	lib/dma-virt.c
 F:	drivers/base/dma-mapping.c
 F:	drivers/base/dma-coherent.c
+F:	include/asm-generic/dma-mapping.h
 F:	include/linux/dma-direct.h
 F:	include/linux/dma-mapping.h
 
diff --git a/arch/m32r/include/asm/Kbuild b/arch/m32r/include/asm/Kbuild
index 7e11b125c35e..ca83fda8177b 100644
--- a/arch/m32r/include/asm/Kbuild
+++ b/arch/m32r/include/asm/Kbuild
@@ -1,5 +1,6 @@
 generic-y += clkdev.h
 generic-y += current.h
+generic-y += dma-mapping.h
 generic-y += exec.h
 generic-y += extable.h
 generic-y += irq_work.h
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
deleted file mode 100644
index 8967fb659691..000000000000
--- a/arch/m32r/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_M32R_DMA_MAPPING_H
-#define _ASM_M32R_DMA_MAPPING_H
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
-#include <linux/io.h>
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &dma_noop_ops;
-}
-
-#endif /* _ASM_M32R_DMA_MAPPING_H */
diff --git a/arch/riscv/include/asm/Kbuild b/arch/riscv/include/asm/Kbuild
index 970460a0b492..197460ccbf21 100644
--- a/arch/riscv/include/asm/Kbuild
+++ b/arch/riscv/include/asm/Kbuild
@@ -7,6 +7,7 @@ generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
 generic-y += dma-contiguous.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += errno.h
 generic-y += exec.h
diff --git a/arch/riscv/include/asm/dma-mapping.h b/arch/riscv/include/asm/dma-mapping.h
deleted file mode 100644
index 73849e2cc761..000000000000
--- a/arch/riscv/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2003-2004 Hewlett-Packard Co
- *	David Mosberger-Tang <davidm@hpl.hp.com>
- * Copyright (C) 2012 ARM Ltd.
- * Copyright (C) 2016 SiFive, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef __ASM_RISCV_DMA_MAPPING_H
-#define __ASM_RISCV_DMA_MAPPING_H
-
-/* Use ops->dma_mapping_error (if it exists) or assume success */
-// #undef DMA_ERROR_CODE
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &dma_noop_ops;
-}
-
-#endif	/* __ASM_RISCV_DMA_MAPPING_H */
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index 048450869328..dade72be127b 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -4,6 +4,7 @@ generic-y += cacheflush.h
 generic-y += clkdev.h
 generic-y += device.h
 generic-y += dma-contiguous.h
+generic-y += dma-mapping.h
 generic-y += div64.h
 generic-y += emergency-restart.h
 generic-y += export.h
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
deleted file mode 100644
index bdc2455483f6..000000000000
--- a/arch/s390/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_S390_DMA_MAPPING_H
-#define _ASM_S390_DMA_MAPPING_H
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
-#include <linux/io.h>
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &dma_noop_ops;
-}
-
-#endif /* _ASM_S390_DMA_MAPPING_H */
diff --git a/include/asm-generic/dma-mapping.h b/include/asm-generic/dma-mapping.h
new file mode 100644
index 000000000000..164031531d85
--- /dev/null
+++ b/include/asm-generic/dma-mapping.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_GENERIC_DMA_MAPPING_H
+#define _ASM_GENERIC_DMA_MAPPING_H
+
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
+{
+	return &dma_noop_ops;
+}
+
+#endif /* _ASM_GENERIC_DMA_MAPPING_H */
-- 
2.14.2

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From - Thu Nov 08 21:40:42 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 21/67] dma-mapping: warn when there is no coherent_dma_mask
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Xref: news.gmane.org gmane.linux.kernel.iommu:21900 gmane.linux.ports.mips.general:62943 gmane.linux.ports.ia64:28410 gmane.linux.ports.sh.devel:56056 gmane.linux.ports.sparc:27063 gmane.linux.kernel.cross-arch:40803 gmane.linux.ports.hexagon:1420 gmane.linux.kernel.arc:3188 gmane.linux.kernel.metag:1494 gmane.linux.ports.arm.kernel:622913 gmane.linux.ports.parisc:28085 gmane.linux.kernel:2654230 gmane.linux.ports.alpha:4567 gmane.linux.ports.ppc64.devel:151517
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21900>

These days all devices should have a DMA coherent mask, and most dma_ops
implementations rely on that fact.  But just to be sure add an assert to
ring the warning bell if that is not the case.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 include/linux/dma-mapping.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index e77e2dec4723..2779d544485c 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -520,6 +520,7 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
 	void *cpu_addr;
 
 	BUG_ON(!ops);
+	WARN_ON_ONCE(!dev->coherent_dma_mask);
 
 	if (dma_alloc_from_dev_coherent(dev, size, dma_handle, &cpu_addr))
 		return cpu_addr;
-- 
2.14.2


From - Thu Nov 08 21:40:42 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 23/67] dma-mapping: add an arch_dma_supported hook
Date: Fri, 29 Dec 2017 09:18:27 +0100
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Xref: news.gmane.org gmane.linux.kernel.iommu:21901 gmane.linux.ports.mips.general:62944 gmane.linux.ports.ia64:28411 gmane.linux.ports.sh.devel:56057 gmane.linux.ports.sparc:27064 gmane.linux.kernel.cross-arch:40804 gmane.linux.ports.hexagon:1421 gmane.linux.kernel.arc:3189 gmane.linux.kernel.metag:1495 gmane.linux.ports.arm.kernel:622914 gmane.linux.ports.parisc:28086 gmane.linux.kernel:2654231 gmane.linux.ports.alpha:4568 gmane.linux.ports.ppc64.devel:151518
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21901>

To implement the x86 forbid_dac and iommu_sac_force we want an arch hook
so that it can apply the global options across all dma_map_ops
implementations.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/x86/include/asm/dma-mapping.h |  3 +++
 arch/x86/kernel/pci-dma.c          | 19 ++++++++++++-------
 include/linux/dma-mapping.h        | 11 +++++++++++
 3 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index dfdc9357a349..6277c83c0eb1 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -30,6 +30,9 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return dma_ops;
 }
 
+int arch_dma_supported(struct device *dev, u64 mask);
+#define arch_dma_supported arch_dma_supported
+
 bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
 #define arch_dma_alloc_attrs arch_dma_alloc_attrs
 
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 61a8f1cb3829..df7ab02f959f 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -215,7 +215,7 @@ static __init int iommu_setup(char *p)
 }
 early_param("iommu", iommu_setup);
 
-int x86_dma_supported(struct device *dev, u64 mask)
+int arch_dma_supported(struct device *dev, u64 mask)
 {
 #ifdef CONFIG_PCI
 	if (mask > 0xffffffff && forbid_dac > 0) {
@@ -224,12 +224,6 @@ int x86_dma_supported(struct device *dev, u64 mask)
 	}
 #endif
 
-	/* Copied from i386. Doesn't make much sense, because it will
-	   only work for pci_alloc_coherent.
-	   The caller just has to use GFP_DMA in this case. */
-	if (mask < DMA_BIT_MASK(24))
-		return 0;
-
 	/* Tell the device to use SAC when IOMMU force is on.  This
 	   allows the driver to use cheaper accesses in some cases.
 
@@ -249,6 +243,17 @@ int x86_dma_supported(struct device *dev, u64 mask)
 
 	return 1;
 }
+EXPORT_SYMBOL(arch_dma_supported);
+
+int x86_dma_supported(struct device *dev, u64 mask)
+{
+	/* Copied from i386. Doesn't make much sense, because it will
+	   only work for pci_alloc_coherent.
+	   The caller just has to use GFP_DMA in this case. */
+	if (mask < DMA_BIT_MASK(24))
+		return 0;
+	return 1;
+}
 
 static int __init pci_iommu_init(void)
 {
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index fd5197af882a..72568bf4fc12 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -583,6 +583,14 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 	return 0;
 }
 
+/*
+ * This is a hack for the legacy x86 forbid_dac and iommu_sac_force. Please
+ * don't use this is new code.
+ */
+#ifndef arch_dma_supported
+#define arch_dma_supported(dev, mask)	(1)
+#endif
+
 static inline void dma_check_mask(struct device *dev, u64 mask)
 {
 	if (sme_active() && (mask < (((u64)sme_get_me_mask() << 1) - 1)))
@@ -595,6 +603,9 @@ static inline int dma_supported(struct device *dev, u64 mask)
 
 	if (!ops)
 		return 0;
+	if (!arch_dma_supported(dev, mask))
+		return 0;
+
 	if (!ops->dma_supported)
 		return 1;
 	return ops->dma_supported(dev, mask);
-- 
2.14.2


From - Thu Nov 08 21:40:42 2018
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 26/67] dma-direct: use phys_to_dma
Date: Fri, 29 Dec 2017 09:18:30 +0100
Lines: 64
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/1496>

This means it uses whatever linear remapping scheme that the architecture
provides is used in the generic dma_direct ops.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 lib/dma-direct.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 439db40854b7..0e087650e86b 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -1,12 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- *	lib/dma-noop.c
- *
- * DMA operations that map to physical addresses without flushing memory.
+ * DMA operations that map physical memory directly without using an IOMMU or
+ * flushing caches.
  */
 #include <linux/export.h>
 #include <linux/mm.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
 #include <linux/pfn.h>
 
@@ -17,7 +16,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 
 	ret = (void *)__get_free_pages(gfp, get_order(size));
 	if (ret)
-		*dma_handle = virt_to_phys(ret) - PFN_PHYS(dev->dma_pfn_offset);
+		*dma_handle = phys_to_dma(dev, virt_to_phys(ret));
 
 	return ret;
 }
@@ -32,7 +31,7 @@ static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
 		unsigned long offset, size_t size, enum dma_data_direction dir,
 		unsigned long attrs)
 {
-	return page_to_phys(page) + offset - PFN_PHYS(dev->dma_pfn_offset);
+	return phys_to_dma(dev, page_to_phys(page)) + offset;
 }
 
 static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
@@ -42,12 +41,9 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	struct scatterlist *sg;
 
 	for_each_sg(sgl, sg, nents, i) {
-		dma_addr_t offset = PFN_PHYS(dev->dma_pfn_offset);
-		void *va;
-
 		BUG_ON(!sg_page(sg));
-		va = sg_virt(sg);
-		sg_dma_address(sg) = (dma_addr_t)virt_to_phys(va) - offset;
+
+		sg_dma_address(sg) = phys_to_dma(dev, sg_phys(sg));
 		sg_dma_len(sg) = sg->length;
 	}
 
-- 
2.14.2


From - Thu Nov 08 21:40:42 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 28/67] dma-direct: add support for CMA allocation
Date: Fri, 29 Dec 2017 09:18:32 +0100
Lines: 66
Approved: news@gmane.org
Message-ID: <20171229081911.2802-29-hch@lst.de>
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Try the CMA allocator for coherent allocations if supported.

Roughly modelled after the x86 code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/dma-direct.c | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index ddd9dcf4e663..d0266b39788b 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -7,6 +7,7 @@
 #include <linux/mm.h>
 #include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
+#include <linux/dma-contiguous.h>
 #include <linux/pfn.h>
 
 #define DIRECT_MAPPING_ERROR		0
@@ -30,19 +31,30 @@ check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
 static void *dma_direct_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
-	void *ret;
+	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
+	int page_order = get_order(size);
+	struct page *page = NULL;
 
-	ret = (void *)__get_free_pages(gfp, get_order(size));
-	if (ret)
-		*dma_handle = phys_to_dma(dev, virt_to_phys(ret));
+	/* CMA can be used only in the context which permits sleeping */
+	if (gfpflags_allow_blocking(gfp))
+		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
+	if (!page)
+		page = alloc_pages(gfp, page_order);
+	if (!page)
+		return NULL;
 
-	return ret;
+	*dma_handle = phys_to_dma(dev, page_to_phys(page));
+	memset(page_address(page), 0, size);
+	return page_address(page);
 }
 
 static void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		dma_addr_t dma_addr, unsigned long attrs)
 {
-	free_pages((unsigned long)cpu_addr, get_order(size));
+	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
+
+	if (!dma_release_from_contiguous(dev, virt_to_page(cpu_addr), count))
+		free_pages((unsigned long)cpu_addr, get_order(size));
 }
 
 static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
-- 
2.14.2

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From - Thu Nov 08 21:40:42 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 25/67] dma-direct: rename dma_noop to dma_direct
Date: Fri, 29 Dec 2017 09:18:29 +0100
Lines: 266
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21904>

The trivial direct mapping implementation already does a virtual to
physical translation which isn't strictly a noop, and will soon learn
to do non-direct but linear physical to dma translations through the
device offset and a few small tricks.  Rename it to a better fitting
name.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 MAINTAINERS                        |  2 +-
 arch/arm/Kconfig                   |  2 +-
 arch/arm/include/asm/dma-mapping.h |  2 +-
 arch/arm/mm/dma-mapping-nommu.c    |  8 ++++----
 arch/m32r/Kconfig                  |  2 +-
 arch/riscv/Kconfig                 |  2 +-
 arch/s390/Kconfig                  |  2 +-
 include/asm-generic/dma-mapping.h  |  2 +-
 include/linux/dma-mapping.h        |  2 +-
 lib/Kconfig                        |  2 +-
 lib/Makefile                       |  2 +-
 lib/{dma-noop.c => dma-direct.c}   | 35 +++++++++++++++--------------------
 12 files changed, 29 insertions(+), 34 deletions(-)
 rename lib/{dma-noop.c => dma-direct.c} (53%)

diff --git a/MAINTAINERS b/MAINTAINERS
index a8b35d9f41b2..b4005fe06e4c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4336,7 +4336,7 @@ T:	git git://git.infradead.org/users/hch/dma-mapping.git
 W:	http://git.infradead.org/users/hch/dma-mapping.git
 S:	Supported
 F:	lib/dma-debug.c
-F:	lib/dma-noop.c
+F:	lib/dma-direct.c
 F:	lib/dma-virt.c
 F:	drivers/base/dma-mapping.c
 F:	drivers/base/dma-coherent.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 00d889a37965..430a0aa710d6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -25,7 +25,7 @@ config ARM
 	select CLONE_BACKWARDS
 	select CPU_PM if (SUSPEND || CPU_IDLE)
 	select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
-	select DMA_NOOP_OPS if !MMU
+	select DMA_DIRECT_OPS if !MMU
 	select EDAC_SUPPORT
 	select EDAC_ATOMIC_SCRUB
 	select GENERIC_ALLOCATOR
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index e5d9020c9ee1..8436f6ade57d 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -18,7 +18,7 @@ extern const struct dma_map_ops arm_coherent_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	return IS_ENABLED(CONFIG_MMU) ? &arm_dma_ops : &dma_noop_ops;
+	return IS_ENABLED(CONFIG_MMU) ? &arm_dma_ops : &dma_direct_ops;
 }
 
 #ifdef __arch_page_to_dma
diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index 1cced700e45a..49e9831dc0f1 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -22,7 +22,7 @@
 #include "dma.h"
 
 /*
- *  dma_noop_ops is used if
+ *  dma_direct_ops is used if
  *   - MMU/MPU is off
  *   - cpu is v7m w/o cache support
  *   - device is coherent
@@ -39,7 +39,7 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
 				 unsigned long attrs)
 
 {
-	const struct dma_map_ops *ops = &dma_noop_ops;
+	const struct dma_map_ops *ops = &dma_direct_ops;
 	void *ret;
 
 	/*
@@ -70,7 +70,7 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
 			       void *cpu_addr, dma_addr_t dma_addr,
 			       unsigned long attrs)
 {
-	const struct dma_map_ops *ops = &dma_noop_ops;
+	const struct dma_map_ops *ops = &dma_direct_ops;
 
 	if (attrs & DMA_ATTR_NON_CONSISTENT) {
 		ops->free(dev, size, cpu_addr, dma_addr, attrs);
@@ -214,7 +214,7 @@ EXPORT_SYMBOL(arm_nommu_dma_ops);
 
 static const struct dma_map_ops *arm_nommu_get_dma_map_ops(bool coherent)
 {
-	return coherent ? &dma_noop_ops : &arm_nommu_dma_ops;
+	return coherent ? &dma_direct_ops : &arm_nommu_dma_ops;
 }
 
 void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 498398d915c1..dd84ee194579 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -19,7 +19,7 @@ config M32R
 	select MODULES_USE_ELF_RELA
 	select HAVE_DEBUG_STACKOVERFLOW
 	select CPU_NO_EFFICIENT_FFS
-	select DMA_NOOP_OPS
+	select DMA_DIRECT_OPS
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
 
 config SBUS
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 2c6adf12713a..865e14f50c14 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -83,7 +83,7 @@ config PGTABLE_LEVELS
 config HAVE_KPROBES
 	def_bool n
 
-config DMA_NOOP_OPS
+config DMA_DIRECT_OPS
 	def_bool y
 
 menu "Platform type"
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 829c67986db7..9376637229c9 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -140,7 +140,7 @@ config S390
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DMA_API_DEBUG
 	select HAVE_DMA_CONTIGUOUS
-	select DMA_NOOP_OPS
+	select DMA_DIRECT_OPS
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
diff --git a/include/asm-generic/dma-mapping.h b/include/asm-generic/dma-mapping.h
index 164031531d85..880a292d792f 100644
--- a/include/asm-generic/dma-mapping.h
+++ b/include/asm-generic/dma-mapping.h
@@ -4,7 +4,7 @@
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	return &dma_noop_ops;
+	return &dma_direct_ops;
 }
 
 #endif /* _ASM_GENERIC_DMA_MAPPING_H */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 72568bf4fc12..ff3528de5322 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -143,7 +143,7 @@ struct dma_map_ops {
 	bool is_phys;
 };
 
-extern const struct dma_map_ops dma_noop_ops;
+extern const struct dma_map_ops dma_direct_ops;
 extern const struct dma_map_ops dma_virt_ops;
 
 #define DMA_BIT_MASK(n)	(((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
diff --git a/lib/Kconfig b/lib/Kconfig
index c5e84fbcb30b..9d3d649c9dc9 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -409,7 +409,7 @@ config HAS_DMA
 	depends on !NO_DMA
 	default y
 
-config DMA_NOOP_OPS
+config DMA_DIRECT_OPS
 	bool
 	depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
 	default n
diff --git a/lib/Makefile b/lib/Makefile
index d11c48ec8ffd..749851abe85a 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -28,7 +28,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
 
 lib-$(CONFIG_MMU) += ioremap.o
 lib-$(CONFIG_SMP) += cpumask.o
-lib-$(CONFIG_DMA_NOOP_OPS) += dma-noop.o
+lib-$(CONFIG_DMA_DIRECT_OPS) += dma-direct.o
 lib-$(CONFIG_DMA_VIRT_OPS) += dma-virt.o
 
 lib-y	+= kobject.o klist.o
diff --git a/lib/dma-noop.c b/lib/dma-direct.c
similarity index 53%
rename from lib/dma-noop.c
rename to lib/dma-direct.c
index c3728a0551f5..439db40854b7 100644
--- a/lib/dma-noop.c
+++ b/lib/dma-direct.c
@@ -10,9 +10,8 @@
 #include <linux/scatterlist.h>
 #include <linux/pfn.h>
 
-static void *dma_noop_alloc(struct device *dev, size_t size,
-			    dma_addr_t *dma_handle, gfp_t gfp,
-			    unsigned long attrs)
+static void *dma_direct_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -23,24 +22,21 @@ static void *dma_noop_alloc(struct device *dev, size_t size,
 	return ret;
 }
 
-static void dma_noop_free(struct device *dev, size_t size,
-			  void *cpu_addr, dma_addr_t dma_addr,
-			  unsigned long attrs)
+static void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t dma_addr, unsigned long attrs)
 {
 	free_pages((unsigned long)cpu_addr, get_order(size));
 }
 
-static dma_addr_t dma_noop_map_page(struct device *dev, struct page *page,
-				      unsigned long offset, size_t size,
-				      enum dma_data_direction dir,
-				      unsigned long attrs)
+static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size, enum dma_data_direction dir,
+		unsigned long attrs)
 {
 	return page_to_phys(page) + offset - PFN_PHYS(dev->dma_pfn_offset);
 }
 
-static int dma_noop_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
-			     enum dma_data_direction dir,
-			     unsigned long attrs)
+static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
+		int nents, enum dma_data_direction dir, unsigned long attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -58,12 +54,11 @@ static int dma_noop_map_sg(struct device *dev, struct scatterlist *sgl, int nent
 	return nents;
 }
 
-const struct dma_map_ops dma_noop_ops = {
-	.alloc			= dma_noop_alloc,
-	.free			= dma_noop_free,
-	.map_page		= dma_noop_map_page,
-	.map_sg			= dma_noop_map_sg,
+const struct dma_map_ops dma_direct_ops = {
+	.alloc			= dma_direct_alloc,
+	.free			= dma_direct_free,
+	.map_page		= dma_direct_map_page,
+	.map_sg			= dma_direct_map_sg,
 	.is_phys		= true,
 };
-
-EXPORT_SYMBOL(dma_noop_ops);
+EXPORT_SYMBOL(dma_direct_ops);
-- 
2.14.2


From - Thu Nov 08 21:40:42 2018
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Subject: [PATCH 27/67] dma-direct: add dma address sanity checks
Date: Fri, 29 Dec 2017 09:18:31 +0100
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Xref: news.gmane.org gmane.linux.kernel.iommu:21905 gmane.linux.ports.mips.general:62948 gmane.linux.ports.ia64:28415 gmane.linux.ports.sh.devel:56061 gmane.linux.ports.sparc:27068 gmane.linux.kernel.cross-arch:40808 gmane.linux.ports.hexagon:1425 gmane.linux.kernel.arc:3193 gmane.linux.kernel.metag:1499 gmane.linux.ports.arm.kernel:622918 gmane.linux.ports.parisc:28090 gmane.linux.kernel:2654235 gmane.linux.ports.alpha:4572 gmane.linux.ports.ppc64.devel:151522
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/21905>

Roughly based on the x86 pci-nommu implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 lib/dma-direct.c | 32 +++++++++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 0e087650e86b..ddd9dcf4e663 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -9,6 +9,24 @@
 #include <linux/scatterlist.h>
 #include <linux/pfn.h>
 
+#define DIRECT_MAPPING_ERROR		0
+
+static bool
+check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
+		const char *caller)
+{
+	if (unlikely(dev && !dma_capable(dev, dma_addr, size))) {
+		if (*dev->dma_mask >= DMA_BIT_MASK(32)) {
+			dev_err(dev,
+				"%s: overflow %llx+%zu of device mask %llx\n",
+				caller, (long long)dma_addr, size,
+				(long long)*dev->dma_mask);
+		}
+		return false;
+	}
+	return true;
+}
+
 static void *dma_direct_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
@@ -31,7 +49,11 @@ static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
 		unsigned long offset, size_t size, enum dma_data_direction dir,
 		unsigned long attrs)
 {
-	return phys_to_dma(dev, page_to_phys(page)) + offset;
+	dma_addr_t dma_addr = phys_to_dma(dev, page_to_phys(page)) + offset;
+
+	if (!check_addr(dev, dma_addr, size, __func__))
+		return DIRECT_MAPPING_ERROR;
+	return dma_addr;
 }
 
 static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
@@ -44,17 +66,25 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 		BUG_ON(!sg_page(sg));
 
 		sg_dma_address(sg) = phys_to_dma(dev, sg_phys(sg));
+		if (!check_addr(dev, sg_dma_address(sg), sg->length, __func__))
+			return 0;
 		sg_dma_len(sg) = sg->length;
 	}
 
 	return nents;
 }
 
+static int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+	return dma_addr == DIRECT_MAPPING_ERROR;
+}
+
 const struct dma_map_ops dma_direct_ops = {
 	.alloc			= dma_direct_alloc,
 	.free			= dma_direct_free,
 	.map_page		= dma_direct_map_page,
 	.map_sg			= dma_direct_map_sg,
+	.mapping_error		= dma_direct_mapping_error,
 	.is_phys		= true,
 };
 EXPORT_SYMBOL(dma_direct_ops);
-- 
2.14.2


From - Thu Nov 08 21:40:42 2018
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Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 29/67] dma-direct: use node local allocations for coherent memory
Date: Fri, 29 Dec 2017 09:18:33 +0100
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/27069>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/dma-direct.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index d0266b39788b..ab81de3ac1d3 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -39,7 +39,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 	if (gfpflags_allow_blocking(gfp))
 		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
 	if (!page)
-		page = alloc_pages(gfp, page_order);
+		page = alloc_pages_node(dev_to_node(dev), gfp, page_order);
 	if (!page)
 		return NULL;
 
-- 
2.14.2

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From - Thu Nov 08 21:40:42 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 31/67] dma-direct: make dma_direct_{alloc,free} available to other implementations
Date: Fri, 29 Dec 2017 09:18:35 +0100
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So that they don't need to indirect through the operation vector.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arm/mm/dma-mapping-nommu.c | 9 +++------
 include/linux/dma-direct.h      | 5 +++++
 lib/dma-direct.c                | 6 +++---
 3 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index 49e9831dc0f1..b4cf3e4e9d4a 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -11,7 +11,7 @@
 
 #include <linux/export.h>
 #include <linux/mm.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
 
 #include <asm/cachetype.h>
@@ -39,7 +39,6 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
 				 unsigned long attrs)
 
 {
-	const struct dma_map_ops *ops = &dma_direct_ops;
 	void *ret;
 
 	/*
@@ -48,7 +47,7 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
 	 */
 
 	if (attrs & DMA_ATTR_NON_CONSISTENT)
-		return ops->alloc(dev, size, dma_handle, gfp, attrs);
+		return dma_direct_alloc(dev, size, dma_handle, gfp, attrs);
 
 	ret = dma_alloc_from_global_coherent(size, dma_handle);
 
@@ -70,10 +69,8 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
 			       void *cpu_addr, dma_addr_t dma_addr,
 			       unsigned long attrs)
 {
-	const struct dma_map_ops *ops = &dma_direct_ops;
-
 	if (attrs & DMA_ATTR_NON_CONSISTENT) {
-		ops->free(dev, size, cpu_addr, dma_addr, attrs);
+		dma_direct_free(dev, size, cpu_addr, dma_addr, attrs);
 	} else {
 		int ret = dma_release_from_global_coherent(get_order(size),
 							   cpu_addr);
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 10e924b7cba7..4788bf0bf683 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -38,4 +38,9 @@ static inline void dma_mark_clean(void *addr, size_t size)
 }
 #endif /* CONFIG_ARCH_HAS_DMA_MARK_CLEAN */
 
+void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs);
+void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t dma_addr, unsigned long attrs);
+
 #endif /* _LINUX_DMA_DIRECT_H */
diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index f8467cb3d89a..7e913728e099 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -33,8 +33,8 @@ static bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size)
 	return phys_to_dma(dev, phys) + size <= dev->coherent_dma_mask;
 }
 
-static void *dma_direct_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	int page_order = get_order(size);
@@ -71,7 +71,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 	return page_address(page);
 }
 
-static void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
+void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		dma_addr_t dma_addr, unsigned long attrs)
 {
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
-- 
2.14.2

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From - Thu Nov 08 21:40:42 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 30/67] dma-direct: retry allocations using GFP_DMA for small masks
Date: Fri, 29 Dec 2017 09:18:34 +0100
Lines: 65
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/28418>

If we got back an allocation that wasn't inside the support coherent mask,
retry the allocation using GFP_DMA.

Based on the x86 code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/dma-direct.c | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index ab81de3ac1d3..f8467cb3d89a 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -28,6 +28,11 @@ check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
 	return true;
 }
 
+static bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size)
+{
+	return phys_to_dma(dev, phys) + size <= dev->coherent_dma_mask;
+}
+
 static void *dma_direct_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
@@ -35,11 +40,29 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 	int page_order = get_order(size);
 	struct page *page = NULL;
 
+again:
 	/* CMA can be used only in the context which permits sleeping */
-	if (gfpflags_allow_blocking(gfp))
+	if (gfpflags_allow_blocking(gfp)) {
 		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
+		if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {
+			dma_release_from_contiguous(dev, page, count);
+			page = NULL;
+		}
+	}
 	if (!page)
 		page = alloc_pages_node(dev_to_node(dev), gfp, page_order);
+
+	if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {
+		__free_pages(page, page_order);
+		page = NULL;
+
+		if (dev->coherent_dma_mask < DMA_BIT_MASK(32) &&
+		    !(gfp & GFP_DMA)) {
+			gfp = (gfp & ~GFP_DMA32) | GFP_DMA;
+			goto again;
+		}
+	}
+
 	if (!page)
 		return NULL;
 
-- 
2.14.2

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From - Thu Nov 08 21:40:42 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 33/67] dma-direct: reject too small dma masks
Date: Fri, 29 Dec 2017 09:18:37 +0100
Lines: 62
Approved: news@gmane.org
Message-ID: <20171229081911.2802-34-hch@lst.de>
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To: iommu@lists.linux-foundation.org
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Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 include/linux/dma-direct.h |  1 +
 lib/dma-direct.c           | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 4788bf0bf683..bcdb1a3e4b1f 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -42,5 +42,6 @@ void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 		gfp_t gfp, unsigned long attrs);
 void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		dma_addr_t dma_addr, unsigned long attrs);
+int dma_direct_supported(struct device *dev, u64 mask);
 
 #endif /* _LINUX_DMA_DIRECT_H */
diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 2e9b9494610c..5bb289483efc 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -123,6 +123,24 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
+int dma_direct_supported(struct device *dev, u64 mask)
+{
+#ifdef CONFIG_ZONE_DMA
+	if (mask < DMA_BIT_MASK(ARCH_ZONE_DMA_BITS))
+		return 0;
+#else
+	/*
+	 * Because 32-bit DMA masks are so common we expect every architecture
+	 * to be able to satisfy them - either by not supporting more physical
+	 * memory, or by providing a ZONE_DMA32.  If neither is the case, the
+	 * architecture needs to use an IOMMU instead of the direct mapping.
+	 */
+	if (mask < DMA_BIT_MASK(32))
+		return 0;
+#endif
+	return 1;
+}
+
 static int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
 	return dma_addr == DIRECT_MAPPING_ERROR;
@@ -133,6 +151,7 @@ const struct dma_map_ops dma_direct_ops = {
 	.free			= dma_direct_free,
 	.map_page		= dma_direct_map_page,
 	.map_sg			= dma_direct_map_sg,
+	.dma_supported		= dma_direct_supported,
 	.mapping_error		= dma_direct_mapping_error,
 	.is_phys		= true,
 };
-- 
2.14.2

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From - Thu Nov 08 21:40:42 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 32/67] dma-direct: add support for allocation from ZONE_DMA and ZONE_DMA32
Date: Fri, 29 Dec 2017 09:18:36 +0100
Lines: 45
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/56066>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/dma-direct.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 7e913728e099..2e9b9494610c 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -12,6 +12,14 @@
 
 #define DIRECT_MAPPING_ERROR		0
 
+/*
+ * Most architectures use ZONE_DMA for the first 16 Megabytes, but
+ * some use it for entirely different regions:
+ */
+#ifndef ARCH_ZONE_DMA_BITS
+#define ARCH_ZONE_DMA_BITS 24
+#endif
+
 static bool
 check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
 		const char *caller)
@@ -40,6 +48,12 @@ void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 	int page_order = get_order(size);
 	struct page *page = NULL;
 
+	/* GFP_DMA32 and GFP_DMA are no ops without the corresponding zones: */
+	if (dev->coherent_dma_mask < DMA_BIT_MASK(32))
+		gfp |= GFP_DMA32;
+	else if (dev->coherent_dma_mask < DMA_BIT_MASK(ARCH_ZONE_DMA_BITS))
+		gfp |= GFP_DMA;
+
 again:
 	/* CMA can be used only in the context which permits sleeping */
 	if (gfpflags_allow_blocking(gfp)) {
-- 
2.14.2

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From - Thu Nov 08 21:40:42 2018
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Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 36/67] x86: remove dma_alloc_coherent_mask
Date: Fri, 29 Dec 2017 09:18:40 +0100
Lines: 153
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/27074>

These days all devices (including the ISA fallback device) have a coherent
DMA mask set, so remove the workaround.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/x86/include/asm/dma-mapping.h | 18 ++----------------
 arch/x86/kernel/pci-dma.c          | 10 ++++------
 arch/x86/mm/mem_encrypt.c          |  4 +---
 drivers/xen/swiotlb-xen.c          | 16 +---------------
 4 files changed, 8 insertions(+), 40 deletions(-)

diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 6277c83c0eb1..545bf3721bc0 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -44,26 +44,12 @@ extern void dma_generic_free_coherent(struct device *dev, size_t size,
 				      void *vaddr, dma_addr_t dma_addr,
 				      unsigned long attrs);
 
-static inline unsigned long dma_alloc_coherent_mask(struct device *dev,
-						    gfp_t gfp)
-{
-	unsigned long dma_mask = 0;
-
-	dma_mask = dev->coherent_dma_mask;
-	if (!dma_mask)
-		dma_mask = (gfp & GFP_DMA) ? DMA_BIT_MASK(24) : DMA_BIT_MASK(32);
-
-	return dma_mask;
-}
-
 static inline gfp_t dma_alloc_coherent_gfp_flags(struct device *dev, gfp_t gfp)
 {
-	unsigned long dma_mask = dma_alloc_coherent_mask(dev, gfp);
-
-	if (dma_mask <= DMA_BIT_MASK(24))
+	if (dev->coherent_dma_mask <= DMA_BIT_MASK(24))
 		gfp |= GFP_DMA;
 #ifdef CONFIG_X86_64
-	if (dma_mask <= DMA_BIT_MASK(32) && !(gfp & GFP_DMA))
+	if (dev->coherent_dma_mask <= DMA_BIT_MASK(32) && !(gfp & GFP_DMA))
 		gfp |= GFP_DMA32;
 #endif
        return gfp;
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index df7ab02f959f..b59820872ec7 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -80,13 +80,10 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 				 dma_addr_t *dma_addr, gfp_t flag,
 				 unsigned long attrs)
 {
-	unsigned long dma_mask;
 	struct page *page;
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	dma_addr_t addr;
 
-	dma_mask = dma_alloc_coherent_mask(dev, flag);
-
 again:
 	page = NULL;
 	/* CMA can be used only in the context which permits sleeping */
@@ -95,7 +92,7 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 						 flag);
 		if (page) {
 			addr = phys_to_dma(dev, page_to_phys(page));
-			if (addr + size > dma_mask) {
+			if (addr + size > dev->coherent_dma_mask) {
 				dma_release_from_contiguous(dev, page, count);
 				page = NULL;
 			}
@@ -108,10 +105,11 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 		return NULL;
 
 	addr = phys_to_dma(dev, page_to_phys(page));
-	if (addr + size > dma_mask) {
+	if (addr + size > dev->coherent_dma_mask) {
 		__free_pages(page, get_order(size));
 
-		if (dma_mask < DMA_BIT_MASK(32) && !(flag & GFP_DMA)) {
+		if (dev->coherent_dma_mask < DMA_BIT_MASK(32) &&
+		    !(flag & GFP_DMA)) {
 			flag = (flag & ~GFP_DMA32) | GFP_DMA;
 			goto again;
 		}
diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c
index 764b916ef7da..479586b8ca9b 100644
--- a/arch/x86/mm/mem_encrypt.c
+++ b/arch/x86/mm/mem_encrypt.c
@@ -203,12 +203,10 @@ void __init sme_early_init(void)
 static void *sev_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 		       gfp_t gfp, unsigned long attrs)
 {
-	unsigned long dma_mask;
 	unsigned int order;
 	struct page *page;
 	void *vaddr = NULL;
 
-	dma_mask = dma_alloc_coherent_mask(dev, gfp);
 	order = get_order(size);
 
 	/*
@@ -226,7 +224,7 @@ static void *sev_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 		 * mask with it already cleared.
 		 */
 		addr = __sme_clr(phys_to_dma(dev, page_to_phys(page)));
-		if ((addr + size) > dma_mask) {
+		if ((addr + size) > dev->coherent_dma_mask) {
 			__free_pages(page, get_order(size));
 		} else {
 			vaddr = page_address(page);
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 5bb72d3f8337..e1c60899fdbc 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -53,20 +53,6 @@
  * API.
  */
 
-#ifndef CONFIG_X86
-static unsigned long dma_alloc_coherent_mask(struct device *dev,
-					    gfp_t gfp)
-{
-	unsigned long dma_mask = 0;
-
-	dma_mask = dev->coherent_dma_mask;
-	if (!dma_mask)
-		dma_mask = (gfp & GFP_DMA) ? DMA_BIT_MASK(24) : DMA_BIT_MASK(32);
-
-	return dma_mask;
-}
-#endif
-
 #define XEN_SWIOTLB_ERROR_CODE	(~(dma_addr_t)0x0)
 
 static char *xen_io_tlb_start, *xen_io_tlb_end;
@@ -328,7 +314,7 @@ xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 		return ret;
 
 	if (hwdev && hwdev->coherent_dma_mask)
-		dma_mask = dma_alloc_coherent_mask(hwdev, flags);
+		dma_mask = hwdev->coherent_dma_mask;
 
 	/* At this point dma_handle is the physical address, next we are
 	 * going to set it to the machine address.
-- 
2.14.2

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From - Thu Nov 08 21:40:43 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 35/67] h8300: use dma-direct
Date: Fri, 29 Dec 2017 09:18:39 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/9757>

Replace the bare-bones h8300 direct dma mapping implementation with
the fully featured generic dma-direct one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/h8300/Kconfig                   |  1 +
 arch/h8300/include/asm/Kbuild        |  1 +
 arch/h8300/include/asm/dma-mapping.h | 12 -------
 arch/h8300/kernel/Makefile           |  2 +-
 arch/h8300/kernel/dma.c              | 67 ------------------------------------
 5 files changed, 3 insertions(+), 80 deletions(-)
 delete mode 100644 arch/h8300/include/asm/dma-mapping.h
 delete mode 100644 arch/h8300/kernel/dma.c

diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index f8d3fde08190..091d6d04b5e5 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -23,6 +23,7 @@ config H8300
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_HASH
 	select CPU_NO_EFFICIENT_FFS
+	select DMA_DIRECT_OPS
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
index bc077491d299..642752c94306 100644
--- a/arch/h8300/include/asm/Kbuild
+++ b/arch/h8300/include/asm/Kbuild
@@ -9,6 +9,7 @@ generic-y += delay.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
deleted file mode 100644
index 21bb1fc3a6f1..000000000000
--- a/arch/h8300/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _H8300_DMA_MAPPING_H
-#define _H8300_DMA_MAPPING_H
-
-extern const struct dma_map_ops h8300_dma_map_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &h8300_dma_map_ops;
-}
-
-#endif
diff --git a/arch/h8300/kernel/Makefile b/arch/h8300/kernel/Makefile
index b62e830525c6..307aa51576dd 100644
--- a/arch/h8300/kernel/Makefile
+++ b/arch/h8300/kernel/Makefile
@@ -7,7 +7,7 @@ extra-y := vmlinux.lds
 
 obj-y := process.o traps.o ptrace.o \
 	 signal.o setup.o syscalls.o \
-	 irq.o entry.o dma.o
+	 irq.o entry.o
 
 obj-$(CONFIG_ROMKERNEL) += head_rom.o
 obj-$(CONFIG_RAMKERNEL) += head_ram.o
diff --git a/arch/h8300/kernel/dma.c b/arch/h8300/kernel/dma.c
deleted file mode 100644
index 4e27b74df973..000000000000
--- a/arch/h8300/kernel/dma.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-#include <linux/dma-mapping.h>
-#include <linux/kernel.h>
-#include <linux/scatterlist.h>
-#include <linux/module.h>
-#include <asm/pgalloc.h>
-
-static void *dma_alloc(struct device *dev, size_t size,
-		       dma_addr_t *dma_handle, gfp_t gfp,
-		       unsigned long attrs)
-{
-	void *ret;
-
-	if (dev == NULL || (*dev->dma_mask < 0xffffffff))
-		gfp |= GFP_DMA;
-	ret = (void *)__get_free_pages(gfp, get_order(size));
-
-	if (ret != NULL) {
-		memset(ret, 0, size);
-		*dma_handle = virt_to_phys(ret);
-	}
-	return ret;
-}
-
-static void dma_free(struct device *dev, size_t size,
-		     void *vaddr, dma_addr_t dma_handle,
-		     unsigned long attrs)
-
-{
-	free_pages((unsigned long)vaddr, get_order(size));
-}
-
-static dma_addr_t map_page(struct device *dev, struct page *page,
-				  unsigned long offset, size_t size,
-				  enum dma_data_direction direction,
-				  unsigned long attrs)
-{
-	return page_to_phys(page) + offset;
-}
-
-static int map_sg(struct device *dev, struct scatterlist *sgl,
-		  int nents, enum dma_data_direction direction,
-		  unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sgl, sg, nents, i) {
-		sg->dma_address = sg_phys(sg);
-	}
-
-	return nents;
-}
-
-const struct dma_map_ops h8300_dma_map_ops = {
-	.alloc = dma_alloc,
-	.free = dma_free,
-	.map_page = map_page,
-	.map_sg = map_sg,
-	.is_phys = true,
-};
-EXPORT_SYMBOL(h8300_dma_map_ops);
-- 
2.14.2


From - Thu Nov 08 21:40:43 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 39/67] iommu/amd_iommu: use dma_direct_* helpers for the direct mapping case
Date: Fri, 29 Dec 2017 09:18:43 +0100
Lines: 74
Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.kernel:2654243 gmane.linux.kernel.iommu:21913 gmane.linux.ports.alpha:4580 gmane.linux.kernel.arc:3201 gmane.linux.ports.arm.kernel:622926 gmane.linux.ports.hexagon:1433 gmane.linux.ports.ia64:28423 gmane.linux.kernel.metag:1507 gmane.linux.ports.mips.general:62956 gmane.linux.ports.parisc:28098 gmane.linux.ports.ppc64.devel:151530 gmane.linux.ports.sh.devel:56069 gmane.linux.ports.sparc:27076 gmane.linux.kernel.cross-arch:40816
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2654243>

This adds support for CMA allocations, but is otherwise identical.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/iommu/Kconfig     |  1 +
 drivers/iommu/amd_iommu.c | 27 +++++++++------------------
 2 files changed, 10 insertions(+), 18 deletions(-)

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index f3a21343e636..dc7c1914645d 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -107,6 +107,7 @@ config IOMMU_PGTABLES_L2
 # AMD IOMMU support
 config AMD_IOMMU
 	bool "AMD IOMMU support"
+	select DMA_DIRECT_OPS
 	select SWIOTLB
 	select PCI_MSI
 	select PCI_ATS
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index ea4734de5357..a2ad149ab0bf 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2592,11 +2592,9 @@ static void *alloc_coherent(struct device *dev, size_t size,
 	struct page *page;
 
 	domain = get_domain(dev);
-	if (PTR_ERR(domain) == -EINVAL) {
-		page = alloc_pages(flag, get_order(size));
-		*dma_addr = page_to_phys(page);
-		return page_address(page);
-	} else if (IS_ERR(domain))
+	if (PTR_ERR(domain) == -EINVAL)
+		return dma_direct_alloc(dev, size, dma_addr, flag, attrs);
+	else if (IS_ERR(domain))
 		return NULL;
 
 	dma_dom   = to_dma_ops_domain(domain);
@@ -2642,24 +2640,17 @@ static void free_coherent(struct device *dev, size_t size,
 			  void *virt_addr, dma_addr_t dma_addr,
 			  unsigned long attrs)
 {
-	struct protection_domain *domain;
-	struct dma_ops_domain *dma_dom;
-	struct page *page;
+	struct protection_domain *domain = get_domain(dev);
 
-	page = virt_to_page(virt_addr);
 	size = PAGE_ALIGN(size);
 
-	domain = get_domain(dev);
-	if (IS_ERR(domain))
-		goto free_mem;
-
-	dma_dom = to_dma_ops_domain(domain);
+	if (!IS_ERR(domain)) {
+		struct dma_ops_domain *dma_dom = to_dma_ops_domain(domain);
 
-	__unmap_single(dma_dom, dma_addr, size, DMA_BIDIRECTIONAL);
+		__unmap_single(dma_dom, dma_addr, size, DMA_BIDIRECTIONAL);
+	}
 
-free_mem:
-	if (!dma_release_from_contiguous(dev, page, size >> PAGE_SHIFT))
-		__free_pages(page, get_order(size));
+	dma_direct_free(dev, size, virt_addr, dma_addr, attrs);
 }
 
 /*
-- 
2.14.2



From - Thu Nov 08 21:40:43 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 38/67] x86/amd_gart: clean up gart_alloc_coherent
Date: Fri, 29 Dec 2017 09:18:42 +0100
Lines: 65
Approved: news@gmane.org
Message-ID: <20171229081911.2802-39-hch@lst.de>
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Xref: news.gmane.org gmane.linux.ports.sparc:27077 gmane.linux.kernel.iommu:21914 gmane.linux.ports.alpha:4581 gmane.linux.kernel.arc:3202 gmane.linux.ports.arm.kernel:622927 gmane.linux.ports.hexagon:1434 gmane.linux.ports.ia64:28424 gmane.linux.kernel.metag:1508 gmane.linux.ports.mips.general:62957 gmane.linux.ports.parisc:28099 gmane.linux.ports.ppc64.devel:151531 gmane.linux.ports.sh.devel:56070 gmane.linux.kernel.cross-arch:40817 gmane.linux.kernel:2654244
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/27077>

Don't rely on the gfp mask from dma_alloc_coherent_gfp_flags to make the
fallback decision, and streamline the code flow a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/x86/kernel/amd_gart_64.c | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index 52e3abcf3e70..92054815023e 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -484,26 +484,26 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
 	unsigned long align_mask;
 	struct page *page;
 
-	if (force_iommu && !(flag & GFP_DMA)) {
-		flag &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
-		page = alloc_pages(flag | __GFP_ZERO, get_order(size));
-		if (!page)
-			return NULL;
-
-		align_mask = (1UL << get_order(size)) - 1;
-		paddr = dma_map_area(dev, page_to_phys(page), size,
-				     DMA_BIDIRECTIONAL, align_mask);
-
-		flush_gart();
-		if (paddr != bad_dma_addr) {
-			*dma_addr = paddr;
-			return page_address(page);
-		}
-		__free_pages(page, get_order(size));
-	} else
+	if (!force_iommu || dev->coherent_dma_mask <= DMA_BIT_MASK(24))
 		return dma_direct_alloc(dev, size, dma_addr, flag, attrs);
 
-	return NULL;
+	flag &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
+	page = alloc_pages(flag | __GFP_ZERO, get_order(size));
+	if (!page)
+		return NULL;
+
+	align_mask = (1UL << get_order(size)) - 1;
+	paddr = dma_map_area(dev, page_to_phys(page), size, DMA_BIDIRECTIONAL,
+			align_mask);
+
+	flush_gart();
+	if (unlikely(paddr == bad_dma_addr)) {
+		__free_pages(page, get_order(size));
+		return NULL;
+	}
+
+	*dma_addr = paddr;
+	return page_address(page);
 }
 
 /* free a coherent mapping */
-- 
2.14.2

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From - Thu Nov 08 21:40:43 2018
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Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 42/67] arm64: rename swiotlb_dma_ops
Date: Fri, 29 Dec 2017 09:18:46 +0100
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Approved: news@gmane.org
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We'll need that name for a generic implementation soon.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arm64/mm/dma-mapping.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index f3a637b98487..6840426bbe77 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -368,7 +368,7 @@ static int __swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t addr)
 	return 0;
 }
 
-static const struct dma_map_ops swiotlb_dma_ops = {
+static const struct dma_map_ops arm64_swiotlb_dma_ops = {
 	.alloc = __dma_alloc,
 	.free = __dma_free,
 	.mmap = __swiotlb_mmap,
@@ -923,7 +923,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 			const struct iommu_ops *iommu, bool coherent)
 {
 	if (!dev->dma_ops)
-		dev->dma_ops = &swiotlb_dma_ops;
+		dev->dma_ops = &arm64_swiotlb_dma_ops;
 
 	dev->archdata.dma_coherent = coherent;
 	__iommu_setup_dma_ops(dev, dma_base, size, iommu);
-- 
2.14.2

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From - Thu Nov 08 21:40:43 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 44/67] powerpc: rename swiotlb_dma_ops
Date: Fri, 29 Dec 2017 09:18:48 +0100
Lines: 74
Approved: news@gmane.org
Message-ID: <20171229081911.2802-45-hch@lst.de>
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We'll need that name for a generic implementation soon.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/powerpc/include/asm/swiotlb.h | 2 +-
 arch/powerpc/kernel/dma-swiotlb.c  | 4 ++--
 arch/powerpc/kernel/dma.c          | 2 +-
 arch/powerpc/sysdev/fsl_pci.c      | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/include/asm/swiotlb.h b/arch/powerpc/include/asm/swiotlb.h
index 9341ee804d19..f65ecf57b66c 100644
--- a/arch/powerpc/include/asm/swiotlb.h
+++ b/arch/powerpc/include/asm/swiotlb.h
@@ -13,7 +13,7 @@
 
 #include <linux/swiotlb.h>
 
-extern const struct dma_map_ops swiotlb_dma_ops;
+extern const struct dma_map_ops powerpc_swiotlb_dma_ops;
 
 extern unsigned int ppc_swiotlb_enable;
 int __init swiotlb_setup_bus_notifier(void);
diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index f1e99b9cee97..506ac4fafac5 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -46,7 +46,7 @@ static u64 swiotlb_powerpc_get_required(struct device *dev)
  * map_page, and unmap_page on highmem, use normal dma_ops
  * for everything else.
  */
-const struct dma_map_ops swiotlb_dma_ops = {
+const struct dma_map_ops powerpc_swiotlb_dma_ops = {
 	.alloc = __dma_nommu_alloc_coherent,
 	.free = __dma_nommu_free_coherent,
 	.mmap = dma_nommu_mmap_coherent,
@@ -89,7 +89,7 @@ static int ppc_swiotlb_bus_notify(struct notifier_block *nb,
 
 	/* May need to bounce if the device can't address all of DRAM */
 	if ((dma_get_mask(dev) + 1) < memblock_end_of_DRAM())
-		set_dma_ops(dev, &swiotlb_dma_ops);
+		set_dma_ops(dev, &powerpc_swiotlb_dma_ops);
 
 	return NOTIFY_DONE;
 }
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 1723001d5de1..b787692b91ee 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -33,7 +33,7 @@ static u64 __maybe_unused get_pfn_limit(struct device *dev)
 	struct dev_archdata __maybe_unused *sd = &dev->archdata;
 
 #ifdef CONFIG_SWIOTLB
-	if (sd->max_direct_dma_addr && dev->dma_ops == &swiotlb_dma_ops)
+	if (sd->max_direct_dma_addr && dev->dma_ops == &powerpc_swiotlb_dma_ops)
 		pfn = min_t(u64, pfn, sd->max_direct_dma_addr >> PAGE_SHIFT);
 #endif
 
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index e4d0133bbeeb..61e07c78d64f 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -118,7 +118,7 @@ static void setup_swiotlb_ops(struct pci_controller *hose)
 {
 	if (ppc_swiotlb_enable) {
 		hose->controller_ops.dma_dev_setup = pci_dma_dev_setup_swiotlb;
-		set_pci_dma_ops(&swiotlb_dma_ops);
+		set_pci_dma_ops(&powerpc_swiotlb_dma_ops);
 	}
 }
 #else
-- 
2.14.2


From - Thu Nov 08 21:40:43 2018
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Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 43/67] ia64: rename swiotlb_dma_ops
Date: Fri, 29 Dec 2017 09:18:47 +0100
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To: iommu@lists.linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/27080>

We'll need that name for a generic implementation soon.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/ia64/hp/common/hwsw_iommu.c | 4 ++--
 arch/ia64/hp/common/sba_iommu.c  | 6 +++---
 arch/ia64/kernel/pci-swiotlb.c   | 6 +++---
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c
index 63d8e1d2477f..41279f0442bd 100644
--- a/arch/ia64/hp/common/hwsw_iommu.c
+++ b/arch/ia64/hp/common/hwsw_iommu.c
@@ -19,7 +19,7 @@
 #include <linux/export.h>
 #include <asm/machvec.h>
 
-extern const struct dma_map_ops sba_dma_ops, swiotlb_dma_ops;
+extern const struct dma_map_ops sba_dma_ops, ia64_swiotlb_dma_ops;
 
 /* swiotlb declarations & definitions: */
 extern int swiotlb_late_init_with_default_size (size_t size);
@@ -38,7 +38,7 @@ static inline int use_swiotlb(struct device *dev)
 const struct dma_map_ops *hwsw_dma_get_ops(struct device *dev)
 {
 	if (use_swiotlb(dev))
-		return &swiotlb_dma_ops;
+		return &ia64_swiotlb_dma_ops;
 	return &sba_dma_ops;
 }
 EXPORT_SYMBOL(hwsw_dma_get_ops);
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 6f05aba9012f..d68849ad2ee1 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -2093,7 +2093,7 @@ static int __init acpi_sba_ioc_init_acpi(void)
 /* This has to run before acpi_scan_init(). */
 arch_initcall(acpi_sba_ioc_init_acpi);
 
-extern const struct dma_map_ops swiotlb_dma_ops;
+extern const struct dma_map_ops ia64_swiotlb_dma_ops;
 
 static int __init
 sba_init(void)
@@ -2108,7 +2108,7 @@ sba_init(void)
 	 * a successful kdump kernel boot is to use the swiotlb.
 	 */
 	if (is_kdump_kernel()) {
-		dma_ops = &swiotlb_dma_ops;
+		dma_ops = &ia64_swiotlb_dma_ops;
 		if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0)
 			panic("Unable to initialize software I/O TLB:"
 				  " Try machvec=dig boot option");
@@ -2130,7 +2130,7 @@ sba_init(void)
 		 * If we didn't find something sba_iommu can claim, we
 		 * need to setup the swiotlb and switch to the dig machvec.
 		 */
-		dma_ops = &swiotlb_dma_ops;
+		dma_ops = &ia64_swiotlb_dma_ops;
 		if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0)
 			panic("Unable to find SBA IOMMU or initialize "
 			      "software I/O TLB: Try machvec=dig boot option");
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 5e50939aa03e..f1ae873a8c35 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -31,7 +31,7 @@ static void ia64_swiotlb_free_coherent(struct device *dev, size_t size,
 	swiotlb_free_coherent(dev, size, vaddr, dma_addr);
 }
 
-const struct dma_map_ops swiotlb_dma_ops = {
+const struct dma_map_ops ia64_swiotlb_dma_ops = {
 	.alloc = ia64_swiotlb_alloc_coherent,
 	.free = ia64_swiotlb_free_coherent,
 	.map_page = swiotlb_map_page,
@@ -48,7 +48,7 @@ const struct dma_map_ops swiotlb_dma_ops = {
 
 void __init swiotlb_dma_init(void)
 {
-	dma_ops = &swiotlb_dma_ops;
+	dma_ops = &ia64_swiotlb_dma_ops;
 	swiotlb_init(1);
 }
 
@@ -60,7 +60,7 @@ void __init pci_swiotlb_init(void)
 		printk(KERN_INFO "PCI-DMA: Re-initialize machine vector.\n");
 		machvec_init("dig");
 		swiotlb_init(1);
-		dma_ops = &swiotlb_dma_ops;
+		dma_ops = &ia64_swiotlb_dma_ops;
 #else
 		panic("Unable to find Intel IOMMU");
 #endif
-- 
2.14.2

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From - Thu Nov 08 21:40:43 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 46/67] swiotlb: lift x86 swiotlb_dma_ops to common code
Date: Fri, 29 Dec 2017 09:18:50 +0100
Lines: 185
Approved: news@gmane.org
Message-ID: <20171229081911.2802-47-hch@lst.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.m68k/9759>

Including the useful helpers for coherent allocations that first try the
full blown direct mapping.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/x86/include/asm/swiotlb.h |  8 --------
 arch/x86/kernel/pci-swiotlb.c  | 45 ------------------------------------------
 arch/x86/pci/sta2x11-fixup.c   |  4 ++--
 include/linux/swiotlb.h        |  8 ++++++++
 lib/swiotlb.c                  | 43 ++++++++++++++++++++++++++++++++++++++++
 5 files changed, 53 insertions(+), 55 deletions(-)

diff --git a/arch/x86/include/asm/swiotlb.h b/arch/x86/include/asm/swiotlb.h
index 1c6a6cb230ff..ff6c92eff035 100644
--- a/arch/x86/include/asm/swiotlb.h
+++ b/arch/x86/include/asm/swiotlb.h
@@ -27,12 +27,4 @@ static inline void pci_swiotlb_late_init(void)
 {
 }
 #endif
-
-extern void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
-					dma_addr_t *dma_handle, gfp_t flags,
-					unsigned long attrs);
-extern void x86_swiotlb_free_coherent(struct device *dev, size_t size,
-					void *vaddr, dma_addr_t dma_addr,
-					unsigned long attrs);
-
 #endif /* _ASM_X86_SWIOTLB_H */
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 57dea60c2473..661583662430 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -17,51 +17,6 @@
 
 int swiotlb __read_mostly;
 
-void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
-					dma_addr_t *dma_handle, gfp_t flags,
-					unsigned long attrs)
-{
-	void *vaddr;
-
-	/*
-	 * Don't print a warning when the first allocation attempt fails.
-	 * swiotlb_alloc_coherent() will print a warning when the DMA
-	 * memory allocation ultimately failed.
-	 */
-	flags |= __GFP_NOWARN;
-
-	vaddr = dma_direct_alloc(hwdev, size, dma_handle, flags, attrs);
-	if (vaddr)
-		return vaddr;
-
-	return swiotlb_alloc_coherent(hwdev, size, dma_handle, flags);
-}
-
-void x86_swiotlb_free_coherent(struct device *dev, size_t size,
-				      void *vaddr, dma_addr_t dma_addr,
-				      unsigned long attrs)
-{
-	if (is_swiotlb_buffer(dma_to_phys(dev, dma_addr)))
-		swiotlb_free_coherent(dev, size, vaddr, dma_addr);
-	else
-		dma_direct_free(dev, size, vaddr, dma_addr, attrs);
-}
-
-static const struct dma_map_ops swiotlb_dma_ops = {
-	.mapping_error = swiotlb_dma_mapping_error,
-	.alloc = x86_swiotlb_alloc_coherent,
-	.free = x86_swiotlb_free_coherent,
-	.sync_single_for_cpu = swiotlb_sync_single_for_cpu,
-	.sync_single_for_device = swiotlb_sync_single_for_device,
-	.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
-	.sync_sg_for_device = swiotlb_sync_sg_for_device,
-	.map_sg = swiotlb_map_sg_attrs,
-	.unmap_sg = swiotlb_unmap_sg_attrs,
-	.map_page = swiotlb_map_page,
-	.unmap_page = swiotlb_unmap_page,
-	.dma_supported = NULL,
-};
-
 /*
  * pci_swiotlb_detect_override - set swiotlb to 1 if necessary
  *
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 6c712fe11bdc..4b69b008d5aa 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -175,7 +175,7 @@ static void *sta2x11_swiotlb_alloc_coherent(struct device *dev,
 {
 	void *vaddr;
 
-	vaddr = x86_swiotlb_alloc_coherent(dev, size, dma_handle, flags, attrs);
+	vaddr = swiotlb_alloc(dev, size, dma_handle, flags, attrs);
 	*dma_handle = p2a(*dma_handle, to_pci_dev(dev));
 	return vaddr;
 }
@@ -183,7 +183,7 @@ static void *sta2x11_swiotlb_alloc_coherent(struct device *dev,
 /* We have our own dma_ops: the same as swiotlb but from alloc (above) */
 static const struct dma_map_ops sta2x11_dma_ops = {
 	.alloc = sta2x11_swiotlb_alloc_coherent,
-	.free = x86_swiotlb_free_coherent,
+	.free = swiotlb_free,
 	.map_page = swiotlb_map_page,
 	.unmap_page = swiotlb_unmap_page,
 	.map_sg = swiotlb_map_sg_attrs,
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 606375e35d87..5b1f2a00491c 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -66,6 +66,12 @@ extern void swiotlb_tbl_sync_single(struct device *hwdev,
 				    enum dma_sync_target target);
 
 /* Accessory functions. */
+
+void *swiotlb_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle,
+		gfp_t flags, unsigned long attrs);
+void swiotlb_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_addr, unsigned long attrs);
+
 extern void
 *swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 			dma_addr_t *dma_handle, gfp_t flags);
@@ -126,4 +132,6 @@ extern void swiotlb_print_info(void);
 extern int is_swiotlb_buffer(phys_addr_t paddr);
 extern void swiotlb_set_max_segment(unsigned int);
 
+extern const struct dma_map_ops swiotlb_dma_ops;
+
 #endif /* __LINUX_SWIOTLB_H */
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index c1fcd3a32d07..9c100f0173bf 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -1084,3 +1084,46 @@ swiotlb_dma_supported(struct device *hwdev, u64 mask)
 	return swiotlb_phys_to_dma(hwdev, io_tlb_end - 1) <= mask;
 }
 EXPORT_SYMBOL(swiotlb_dma_supported);
+
+#ifdef CONFIG_DMA_DIRECT_OPS
+void *swiotlb_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
+{
+	void *vaddr;
+
+	/*
+	 * Don't print a warning when the first allocation attempt fails.
+	 * swiotlb_alloc_coherent() will print a warning when the DMA memory
+	 * allocation ultimately failed.
+	 */
+	gfp |= __GFP_NOWARN;
+
+	vaddr = dma_direct_alloc(dev, size, dma_handle, gfp, attrs);
+	if (!vaddr)
+		vaddr = swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
+	return vaddr;
+}
+
+void swiotlb_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_addr, unsigned long attrs)
+{
+	if (is_swiotlb_buffer(dma_to_phys(dev, dma_addr)))
+		swiotlb_free_coherent(dev, size, vaddr, dma_addr);
+	else
+		dma_direct_free(dev, size, vaddr, dma_addr, attrs);
+}
+
+const struct dma_map_ops swiotlb_dma_ops = {
+	.mapping_error		= swiotlb_dma_mapping_error,
+	.alloc			= swiotlb_alloc,
+	.free			= swiotlb_free,
+	.sync_single_for_cpu	= swiotlb_sync_single_for_cpu,
+	.sync_single_for_device	= swiotlb_sync_single_for_device,
+	.sync_sg_for_cpu	= swiotlb_sync_sg_for_cpu,
+	.sync_sg_for_device	= swiotlb_sync_sg_for_device,
+	.map_sg			= swiotlb_map_sg_attrs,
+	.unmap_sg		= swiotlb_unmap_sg_attrs,
+	.map_page		= swiotlb_map_page,
+	.unmap_page		= swiotlb_unmap_page,
+};
+#endif /* CONFIG_DMA_DIRECT_OPS */
-- 
2.14.2


From - Thu Nov 08 21:40:43 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 47/67] swiotlb: wire up ->dma_supported in swiotlb_dma_ops
Date: Fri, 29 Dec 2017 09:18:51 +0100
Lines: 23
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2654249>

To properly reject too small DMA masks based on the addressability of the
bounce buffer.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/swiotlb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 9c100f0173bf..e0b8980334c3 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -1125,5 +1125,6 @@ const struct dma_map_ops swiotlb_dma_ops = {
 	.unmap_sg		= swiotlb_unmap_sg_attrs,
 	.map_page		= swiotlb_map_page,
 	.unmap_page		= swiotlb_unmap_page,
+	.dma_supported		= swiotlb_dma_supported,
 };
 #endif /* CONFIG_DMA_DIRECT_OPS */
-- 
2.14.2



From - Thu Nov 08 21:40:43 2018
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Subject: [PATCH 50/67] swiotlb: refactor coherent buffer allocation
Date: Fri, 29 Dec 2017 09:18:54 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/40823>

Factor out a new swiotlb_alloc_buffer helper that allocates DMA coherent
memory from the swiotlb bounce buffer.

This allows to simplify the swiotlb_alloc implemenation that uses
dma_direct_alloc to try to allocate a reachable buffer first.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/swiotlb.c | 100 ++++++++++++++++++++++++++++++----------------------------
 1 file changed, 51 insertions(+), 49 deletions(-)

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index adb4dd0091fa..905eea6353a3 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -709,67 +709,69 @@ void swiotlb_tbl_sync_single(struct device *hwdev, phys_addr_t tlb_addr,
 }
 EXPORT_SYMBOL_GPL(swiotlb_tbl_sync_single);
 
+static void *
+swiotlb_alloc_buffer(struct device *dev, size_t size, dma_addr_t *dma_handle)
+{
+	phys_addr_t phys_addr;
+
+	if (swiotlb_force == SWIOTLB_NO_FORCE)
+		goto out_warn;
+
+	phys_addr = swiotlb_tbl_map_single(dev,
+			swiotlb_phys_to_dma(dev, io_tlb_start),
+			0, size, DMA_FROM_DEVICE, 0);
+	if (phys_addr == SWIOTLB_MAP_ERROR)
+		goto out_warn;
+
+	*dma_handle = swiotlb_phys_to_dma(dev, phys_addr);
+
+	/* Confirm address can be DMA'd by device */
+	if (*dma_handle + size - 1 > dev->coherent_dma_mask)
+		goto out_unmap;
+
+	memset(phys_to_virt(phys_addr), 0, size);
+	return phys_to_virt(phys_addr);
+
+out_unmap:
+	dev_warn(dev, "hwdev DMA mask = 0x%016Lx, dev_addr = 0x%016Lx\n",
+		(unsigned long long)dev->coherent_dma_mask,
+		(unsigned long long)*dma_handle);
+
+	/*
+	 * DMA_TO_DEVICE to avoid memcpy in unmap_single.
+	 * DMA_ATTR_SKIP_CPU_SYNC is optional.
+	 */
+	swiotlb_tbl_unmap_single(dev, phys_addr, size, DMA_TO_DEVICE,
+			DMA_ATTR_SKIP_CPU_SYNC);
+out_warn:
+	dev_warn(dev,
+		"swiotlb: coherent allocation failed, size=%zu\n", size);
+	dump_stack();
+	return NULL;
+}
+
 void *
 swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 		       dma_addr_t *dma_handle, gfp_t flags)
 {
-	dma_addr_t dev_addr;
-	void *ret;
 	int order = get_order(size);
+	void *ret;
 
 	ret = (void *)__get_free_pages(flags, order);
 	if (ret) {
-		dev_addr = swiotlb_virt_to_bus(hwdev, ret);
-		if (dev_addr + size - 1 > hwdev->coherent_dma_mask) {
-			/*
-			 * The allocated memory isn't reachable by the device.
-			 */
-			free_pages((unsigned long) ret, order);
-			ret = NULL;
+		*dma_handle = swiotlb_virt_to_bus(hwdev, ret);
+		if (*dma_handle  + size - 1 <= hwdev->coherent_dma_mask) {
+			memset(ret, 0, size);
+			return ret;
 		}
-	}
-	if (!ret) {
+
 		/*
-		 * We are either out of memory or the device can't DMA to
-		 * GFP_DMA memory; fall back on map_single(), which
-		 * will grab memory from the lowest available address range.
+		 * The allocated memory isn't reachable by the device.
 		 */
-		phys_addr_t paddr = map_single(hwdev, 0, size,
-					       DMA_FROM_DEVICE, 0);
-		if (paddr == SWIOTLB_MAP_ERROR)
-			goto err_warn;
-
-		ret = phys_to_virt(paddr);
-		dev_addr = swiotlb_phys_to_dma(hwdev, paddr);
-
-		/* Confirm address can be DMA'd by device */
-		if (dev_addr + size - 1 > hwdev->coherent_dma_mask) {
-			printk("hwdev DMA mask = 0x%016Lx, dev_addr = 0x%016Lx\n",
-			       (unsigned long long)hwdev->coherent_dma_mask,
-			       (unsigned long long)dev_addr);
-
-			/*
-			 * DMA_TO_DEVICE to avoid memcpy in unmap_single.
-			 * The DMA_ATTR_SKIP_CPU_SYNC is optional.
-			 */
-			swiotlb_tbl_unmap_single(hwdev, paddr,
-						 size, DMA_TO_DEVICE,
-						 DMA_ATTR_SKIP_CPU_SYNC);
-			goto err_warn;
-		}
+		free_pages((unsigned long) ret, order);
 	}
 
-	*dma_handle = dev_addr;
-	memset(ret, 0, size);
-
-	return ret;
-
-err_warn:
-	pr_warn("swiotlb: coherent allocation failed for device %s size=%zu\n",
-		dev_name(hwdev), size);
-	dump_stack();
-
-	return NULL;
+	return swiotlb_alloc_buffer(hwdev, size, dma_handle);
 }
 EXPORT_SYMBOL(swiotlb_alloc_coherent);
 
@@ -1105,7 +1107,7 @@ void *swiotlb_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 
 	vaddr = dma_direct_alloc(dev, size, dma_handle, gfp, attrs);
 	if (!vaddr)
-		vaddr = swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
+		vaddr = swiotlb_alloc_buffer(dev, size, dma_handle);
 	return vaddr;
 }
 
-- 
2.14.2



From - Thu Nov 08 21:40:43 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 53/67] swiotlb: remove swiotlb_set_mem_attributes
Date: Fri, 29 Dec 2017 09:18:57 +0100
Lines: 106
Approved: news@gmane.org
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To: iommu@lists.linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/28431>

Now that set_memory_decrypted is always available we can just call
it directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/x86/include/asm/mem_encrypt.h |  2 --
 arch/x86/mm/mem_encrypt.c          |  9 ---------
 lib/swiotlb.c                      | 12 ++++++------
 3 files changed, 6 insertions(+), 17 deletions(-)

diff --git a/arch/x86/include/asm/mem_encrypt.h b/arch/x86/include/asm/mem_encrypt.h
index c9459a4c3c68..549894d496da 100644
--- a/arch/x86/include/asm/mem_encrypt.h
+++ b/arch/x86/include/asm/mem_encrypt.h
@@ -48,8 +48,6 @@ int __init early_set_memory_encrypted(unsigned long vaddr, unsigned long size);
 /* Architecture __weak replacement functions */
 void __init mem_encrypt_init(void);
 
-void swiotlb_set_mem_attributes(void *vaddr, unsigned long size);
-
 bool sme_active(void);
 bool sev_active(void);
 
diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c
index 93de36cc3dd9..b279e90c85cd 100644
--- a/arch/x86/mm/mem_encrypt.c
+++ b/arch/x86/mm/mem_encrypt.c
@@ -379,15 +379,6 @@ void __init mem_encrypt_init(void)
 			     : "Secure Memory Encryption (SME)");
 }
 
-void swiotlb_set_mem_attributes(void *vaddr, unsigned long size)
-{
-	WARN(PAGE_ALIGN(size) != size,
-	     "size is not page-aligned (%#lx)\n", size);
-
-	/* Make the SWIOTLB buffer area decrypted */
-	set_memory_decrypted((unsigned long)vaddr, size >> PAGE_SHIFT);
-}
-
 static void __init sme_clear_pgd(pgd_t *pgd_base, unsigned long start,
 				 unsigned long end)
 {
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 85b2ad9299e3..4ea0b5710618 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -31,6 +31,7 @@
 #include <linux/gfp.h>
 #include <linux/scatterlist.h>
 #include <linux/mem_encrypt.h>
+#include <linux/set_memory.h>
 
 #include <asm/io.h>
 #include <asm/dma.h>
@@ -156,8 +157,6 @@ unsigned long swiotlb_size_or_default(void)
 	return size ? size : (IO_TLB_DEFAULT_SIZE);
 }
 
-void __weak swiotlb_set_mem_attributes(void *vaddr, unsigned long size) { }
-
 /* Note that this doesn't work with highmem page */
 static dma_addr_t swiotlb_virt_to_bus(struct device *hwdev,
 				      volatile void *address)
@@ -202,12 +201,12 @@ void __init swiotlb_update_mem_attributes(void)
 
 	vaddr = phys_to_virt(io_tlb_start);
 	bytes = PAGE_ALIGN(io_tlb_nslabs << IO_TLB_SHIFT);
-	swiotlb_set_mem_attributes(vaddr, bytes);
+	set_memory_decrypted((unsigned long)vaddr, bytes >> PAGE_SHIFT);
 	memset(vaddr, 0, bytes);
 
 	vaddr = phys_to_virt(io_tlb_overflow_buffer);
 	bytes = PAGE_ALIGN(io_tlb_overflow);
-	swiotlb_set_mem_attributes(vaddr, bytes);
+	set_memory_decrypted((unsigned long)vaddr, bytes >> PAGE_SHIFT);
 	memset(vaddr, 0, bytes);
 }
 
@@ -348,7 +347,7 @@ swiotlb_late_init_with_tbl(char *tlb, unsigned long nslabs)
 	io_tlb_start = virt_to_phys(tlb);
 	io_tlb_end = io_tlb_start + bytes;
 
-	swiotlb_set_mem_attributes(tlb, bytes);
+	set_memory_decrypted((unsigned long)tlb, bytes >> PAGE_SHIFT);
 	memset(tlb, 0, bytes);
 
 	/*
@@ -359,7 +358,8 @@ swiotlb_late_init_with_tbl(char *tlb, unsigned long nslabs)
 	if (!v_overflow_buffer)
 		goto cleanup2;
 
-	swiotlb_set_mem_attributes(v_overflow_buffer, io_tlb_overflow);
+	set_memory_decrypted((unsigned long)v_overflow_buffer,
+			io_tlb_overflow >> PAGE_SHIFT);
 	memset(v_overflow_buffer, 0, io_tlb_overflow);
 	io_tlb_overflow_buffer = virt_to_phys(v_overflow_buffer);
 
-- 
2.14.2

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Subject: [PATCH 52/67] dma-direct: handle the memory encryption bit in common code
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Gіve the basic phys_to_dma and dma_to_phys helpers a __-prefix and add
the memory encryption mask to the non-prefixed versions.  Use the
__-prefixed versions directly instead of clearing the mask again in
various places.

With that in place the generic dma-direct routines can be used to
allocate non-encrypted bounce buffers, and the x86 SEV case can use
the generic swiotlb ops.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arm/include/asm/dma-direct.h                  |  4 +-
 arch/mips/cavium-octeon/dma-octeon.c               | 10 +--
 .../include/asm/mach-cavium-octeon/dma-coherence.h |  4 +-
 .../include/asm/mach-loongson64/dma-coherence.h    | 10 +--
 arch/mips/loongson64/common/dma-swiotlb.c          |  4 +-
 arch/powerpc/include/asm/dma-direct.h              |  4 +-
 arch/x86/Kconfig                                   |  2 +-
 arch/x86/include/asm/dma-direct.h                  | 25 +-------
 arch/x86/mm/mem_encrypt.c                          | 73 +---------------------
 arch/x86/pci/sta2x11-fixup.c                       |  6 +-
 include/linux/dma-direct.h                         | 23 ++++++-
 lib/dma-direct.c                                   | 24 +++++--
 lib/swiotlb.c                                      | 25 +++-----
 13 files changed, 76 insertions(+), 138 deletions(-)

diff --git a/arch/arm/include/asm/dma-direct.h b/arch/arm/include/asm/dma-direct.h
index 5b0a8a421894..b67e5fc1fe43 100644
--- a/arch/arm/include/asm/dma-direct.h
+++ b/arch/arm/include/asm/dma-direct.h
@@ -2,13 +2,13 @@
 #ifndef ASM_ARM_DMA_DIRECT_H
 #define ASM_ARM_DMA_DIRECT_H 1
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+static inline dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
 	unsigned int offset = paddr & ~PAGE_MASK;
 	return pfn_to_dma(dev, __phys_to_pfn(paddr)) + offset;
 }
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
+static inline phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dev_addr)
 {
 	unsigned int offset = dev_addr & ~PAGE_MASK;
 	return __pfn_to_phys(dma_to_pfn(dev, dev_addr)) + offset;
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index 5baf79fce643..6440ad3f9e3b 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -10,7 +10,7 @@
  * IP32 changes by Ilya.
  * Copyright (C) 2010 Cavium Networks, Inc.
  */
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
 #include <linux/bootmem.h>
 #include <linux/export.h>
@@ -202,7 +202,7 @@ struct octeon_dma_map_ops {
 	phys_addr_t (*dma_to_phys)(struct device *dev, dma_addr_t daddr);
 };
 
-dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
 	struct octeon_dma_map_ops *ops = container_of(get_dma_ops(dev),
 						      struct octeon_dma_map_ops,
@@ -210,9 +210,9 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
 
 	return ops->phys_to_dma(dev, paddr);
 }
-EXPORT_SYMBOL(phys_to_dma);
+EXPORT_SYMBOL(__phys_to_dma);
 
-phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
 {
 	struct octeon_dma_map_ops *ops = container_of(get_dma_ops(dev),
 						      struct octeon_dma_map_ops,
@@ -220,7 +220,7 @@ phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
 
 	return ops->dma_to_phys(dev, daddr);
 }
-EXPORT_SYMBOL(dma_to_phys);
+EXPORT_SYMBOL(__dma_to_phys);
 
 static struct octeon_dma_map_ops octeon_linear_dma_map_ops = {
 	.dma_map_ops = {
diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
index f00833acb626..6f8e024f4f97 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
@@ -69,8 +69,8 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 	return addr + size <= *dev->dma_mask;
 }
 
-dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
-phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
+dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr);
+phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr);
 
 struct dma_map_ops;
 extern const struct dma_map_ops *octeon_pci_dma_map_ops;
diff --git a/arch/mips/include/asm/mach-loongson64/dma-coherence.h b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
index 5cfda8f893e9..94fd224dddee 100644
--- a/arch/mips/include/asm/mach-loongson64/dma-coherence.h
+++ b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
@@ -25,13 +25,13 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 	return addr + size <= *dev->dma_mask;
 }
 
-extern dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
-extern phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
+extern dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr);
+extern phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr);
 static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
 					  size_t size)
 {
 #ifdef CONFIG_CPU_LOONGSON3
-	return phys_to_dma(dev, virt_to_phys(addr));
+	return __phys_to_dma(dev, virt_to_phys(addr));
 #else
 	return virt_to_phys(addr) | 0x80000000;
 #endif
@@ -41,7 +41,7 @@ static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
 					       struct page *page)
 {
 #ifdef CONFIG_CPU_LOONGSON3
-	return phys_to_dma(dev, page_to_phys(page));
+	return __phys_to_dma(dev, page_to_phys(page));
 #else
 	return page_to_phys(page) | 0x80000000;
 #endif
@@ -51,7 +51,7 @@ static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
 	dma_addr_t dma_addr)
 {
 #if defined(CONFIG_CPU_LOONGSON3) && defined(CONFIG_64BIT)
-	return dma_to_phys(dev, dma_addr);
+	return __dma_to_phys(dev, dma_addr);
 #elif defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT)
 	return (dma_addr > 0x8fffffff) ? dma_addr : (dma_addr & 0x0fffffff);
 #else
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index 15388c24a504..0a02ea70e39f 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -80,7 +80,7 @@ static int loongson_dma_supported(struct device *dev, u64 mask)
 	return swiotlb_dma_supported(dev, mask);
 }
 
-dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
 	long nid;
 #ifdef CONFIG_PHYS48_TO_HT40
@@ -92,7 +92,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
 	return paddr;
 }
 
-phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
 {
 	long nid;
 #ifdef CONFIG_PHYS48_TO_HT40
diff --git a/arch/powerpc/include/asm/dma-direct.h b/arch/powerpc/include/asm/dma-direct.h
index a5b59c765426..7702875aabb7 100644
--- a/arch/powerpc/include/asm/dma-direct.h
+++ b/arch/powerpc/include/asm/dma-direct.h
@@ -17,12 +17,12 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 	return addr + size - 1 <= *dev->dma_mask;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+static inline dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
 	return paddr + get_dma_offset(dev);
 }
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+static inline phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
 {
 	return daddr - get_dma_offset(dev);
 }
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 55ad01515075..3f2076aba40e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -54,7 +54,6 @@ config X86
 	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_KCOV			if X86_64
-	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_HAS_PMEM_API		if X86_64
 	# Causing hangs/crashes, see the commit that added this change for details.
 	select ARCH_HAS_REFCOUNT
@@ -675,6 +674,7 @@ config X86_SUPPORTS_MEMORY_FAILURE
 config STA2X11
 	bool "STA2X11 Companion Chip Support"
 	depends on X86_32_NON_STANDARD && PCI
+	select ARCH_HAS_PHYS_TO_DMA
 	select X86_DEV_DMA_OPS
 	select X86_DMA_REMAP
 	select SWIOTLB
diff --git a/arch/x86/include/asm/dma-direct.h b/arch/x86/include/asm/dma-direct.h
index 1295bc622ebe..1a19251eaac9 100644
--- a/arch/x86/include/asm/dma-direct.h
+++ b/arch/x86/include/asm/dma-direct.h
@@ -2,29 +2,8 @@
 #ifndef ASM_X86_DMA_DIRECT_H
 #define ASM_X86_DMA_DIRECT_H 1
 
-#include <linux/mem_encrypt.h>
-
-#ifdef CONFIG_X86_DMA_REMAP /* Platform code defines bridge-specific code */
 bool dma_capable(struct device *dev, dma_addr_t addr, size_t size);
-dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
-phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
-#else
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return __sme_set(paddr);
-}
+dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr);
+phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr);
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return __sme_clr(daddr);
-}
-#endif /* CONFIG_X86_DMA_REMAP */
 #endif /* ASM_X86_DMA_DIRECT_H */
diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c
index 1c786e751b49..93de36cc3dd9 100644
--- a/arch/x86/mm/mem_encrypt.c
+++ b/arch/x86/mm/mem_encrypt.c
@@ -200,58 +200,6 @@ void __init sme_early_init(void)
 		swiotlb_force = SWIOTLB_FORCE;
 }
 
-static void *sev_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
-		       gfp_t gfp, unsigned long attrs)
-{
-	unsigned int order;
-	struct page *page;
-	void *vaddr = NULL;
-
-	order = get_order(size);
-	page = alloc_pages_node(dev_to_node(dev), gfp, order);
-	if (page) {
-		dma_addr_t addr;
-
-		/*
-		 * Since we will be clearing the encryption bit, check the
-		 * mask with it already cleared.
-		 */
-		addr = __sme_clr(phys_to_dma(dev, page_to_phys(page)));
-		if ((addr + size) > dev->coherent_dma_mask) {
-			__free_pages(page, get_order(size));
-		} else {
-			vaddr = page_address(page);
-			*dma_handle = addr;
-		}
-	}
-
-	if (!vaddr)
-		vaddr = swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
-
-	if (!vaddr)
-		return NULL;
-
-	/* Clear the SME encryption bit for DMA use if not swiotlb area */
-	if (!is_swiotlb_buffer(dma_to_phys(dev, *dma_handle))) {
-		set_memory_decrypted((unsigned long)vaddr, 1 << order);
-		memset(vaddr, 0, PAGE_SIZE << order);
-		*dma_handle = __sme_clr(*dma_handle);
-	}
-
-	return vaddr;
-}
-
-static void sev_free(struct device *dev, size_t size, void *vaddr,
-		     dma_addr_t dma_handle, unsigned long attrs)
-{
-	/* Set the SME encryption bit for re-use if not swiotlb area */
-	if (!is_swiotlb_buffer(dma_to_phys(dev, dma_handle)))
-		set_memory_encrypted((unsigned long)vaddr,
-				     1 << get_order(size));
-
-	swiotlb_free_coherent(dev, size, vaddr, dma_handle);
-}
-
 static void __init __set_clr_pte_enc(pte_t *kpte, int level, bool enc)
 {
 	pgprot_t old_prot, new_prot;
@@ -404,20 +352,6 @@ bool sev_active(void)
 }
 EXPORT_SYMBOL_GPL(sev_active);
 
-static const struct dma_map_ops sev_dma_ops = {
-	.alloc                  = sev_alloc,
-	.free                   = sev_free,
-	.map_page               = swiotlb_map_page,
-	.unmap_page             = swiotlb_unmap_page,
-	.map_sg                 = swiotlb_map_sg_attrs,
-	.unmap_sg               = swiotlb_unmap_sg_attrs,
-	.sync_single_for_cpu    = swiotlb_sync_single_for_cpu,
-	.sync_single_for_device = swiotlb_sync_single_for_device,
-	.sync_sg_for_cpu        = swiotlb_sync_sg_for_cpu,
-	.sync_sg_for_device     = swiotlb_sync_sg_for_device,
-	.mapping_error          = swiotlb_dma_mapping_error,
-};
-
 /* Architecture __weak replacement functions */
 void __init mem_encrypt_init(void)
 {
@@ -428,12 +362,11 @@ void __init mem_encrypt_init(void)
 	swiotlb_update_mem_attributes();
 
 	/*
-	 * With SEV, DMA operations cannot use encryption. New DMA ops
-	 * are required in order to mark the DMA areas as decrypted or
-	 * to use bounce buffers.
+	 * With SEV, DMA operations cannot use encryption, we need to use
+	 * SWIOTLB to bounce buffer DMA operation.
 	 */
 	if (sev_active())
-		dma_ops = &sev_dma_ops;
+		dma_ops = &swiotlb_dma_ops;
 
 	/*
 	 * With SEV, we need to unroll the rep string I/O instructions.
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 4b69b008d5aa..15ad3025e439 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -243,11 +243,11 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 }
 
 /**
- * phys_to_dma - Return the DMA AMBA address used for this STA2x11 device
+ * __phys_to_dma - Return the DMA AMBA address used for this STA2x11 device
  * @dev: device for a PCI device
  * @paddr: Physical address
  */
-dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
 	if (dev->dma_ops != &sta2x11_dma_ops)
 		return paddr;
@@ -259,7 +259,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
  * @dev: device for a PCI device
  * @daddr: STA2x11 AMBA DMA address
  */
-phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
 {
 	if (dev->dma_ops != &sta2x11_dma_ops)
 		return daddr;
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index bcdb1a3e4b1f..e7f5ac7efcb5 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -3,18 +3,19 @@
 #define _LINUX_DMA_DIRECT_H 1
 
 #include <linux/dma-mapping.h>
+#include <linux/mem_encrypt.h>
 
 #ifdef CONFIG_ARCH_HAS_PHYS_TO_DMA
 #include <asm/dma-direct.h>
 #else
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+static inline dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
 	dma_addr_t dev_addr = (dma_addr_t)paddr;
 
 	return dev_addr - ((dma_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
 }
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
+static inline phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dev_addr)
 {
 	phys_addr_t paddr = (phys_addr_t)dev_addr;
 
@@ -30,6 +31,24 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 }
 #endif /* !CONFIG_ARCH_HAS_PHYS_TO_DMA */
 
+/*
+ * If memory encryptition is supported, phys_to_dma will set the memory
+ * encryption bit in the DMA address, and dma_to_phys will clear it.
+ * The raw __phys_to_dma and __dma_to_phys should only be used on
+ * non-encrypted memory for special occasions like DMA coherent buffers.
+ */
+static __always_inline dma_addr_t phys_to_dma(struct device *dev,
+		phys_addr_t paddr)
+{
+	return __sme_set(__phys_to_dma(dev, paddr));
+}
+
+static __always_inline phys_addr_t dma_to_phys(struct device *dev,
+		dma_addr_t daddr)
+{
+	return __sme_clr(__dma_to_phys(dev, daddr));
+}
+
 #ifdef CONFIG_ARCH_HAS_DMA_MARK_CLEAN
 void dma_mark_clean(void *addr, size_t size);
 #else
diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 5bb289483efc..2e2dcb1ae0a1 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -9,6 +9,7 @@
 #include <linux/scatterlist.h>
 #include <linux/dma-contiguous.h>
 #include <linux/pfn.h>
+#include <linux/set_memory.h>
 
 #define DIRECT_MAPPING_ERROR		0
 
@@ -36,9 +37,13 @@ check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
 	return true;
 }
 
+/*
+ * Since we will be clearing the encryption bit, check the mask with it already
+ * cleared.
+ */
 static bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size)
 {
-	return phys_to_dma(dev, phys) + size <= dev->coherent_dma_mask;
+	return __phys_to_dma(dev, phys) + size <= dev->coherent_dma_mask;
 }
 
 void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
@@ -47,6 +52,7 @@ void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	int page_order = get_order(size);
 	struct page *page = NULL;
+	void *ret;
 
 	/* GFP_DMA32 and GFP_DMA are no ops without the corresponding zones: */
 	if (dev->coherent_dma_mask < DMA_BIT_MASK(32))
@@ -79,19 +85,27 @@ void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 
 	if (!page)
 		return NULL;
+	*dma_handle = __phys_to_dma(dev, page_to_phys(page));
+	ret = page_address(page);
 
-	*dma_handle = phys_to_dma(dev, page_to_phys(page));
-	memset(page_address(page), 0, size);
-	return page_address(page);
+	/* Clear the memory encryption bit */
+	set_memory_decrypted((unsigned long)ret, page_order);
+
+	memset(ret, 0, size);
+	return ret;
 }
 
 void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		dma_addr_t dma_addr, unsigned long attrs)
 {
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
+	unsigned int page_order = get_order(size);
+
+	/* Set the SME encryption bit for re-use */
+	set_memory_encrypted((unsigned long)cpu_addr, 1 << page_order);
 
 	if (!dma_release_from_contiguous(dev, virt_to_page(cpu_addr), count))
-		free_pages((unsigned long)cpu_addr, get_order(size));
+		free_pages((unsigned long)cpu_addr, page_order);
 }
 
 static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 905eea6353a3..85b2ad9299e3 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -158,13 +158,6 @@ unsigned long swiotlb_size_or_default(void)
 
 void __weak swiotlb_set_mem_attributes(void *vaddr, unsigned long size) { }
 
-/* For swiotlb, clear memory encryption mask from dma addresses */
-static dma_addr_t swiotlb_phys_to_dma(struct device *hwdev,
-				      phys_addr_t address)
-{
-	return __sme_clr(phys_to_dma(hwdev, address));
-}
-
 /* Note that this doesn't work with highmem page */
 static dma_addr_t swiotlb_virt_to_bus(struct device *hwdev,
 				      volatile void *address)
@@ -623,7 +616,7 @@ map_single(struct device *hwdev, phys_addr_t phys, size_t size,
 		return SWIOTLB_MAP_ERROR;
 	}
 
-	start_dma_addr = swiotlb_phys_to_dma(hwdev, io_tlb_start);
+	start_dma_addr = __phys_to_dma(hwdev, io_tlb_start);
 	return swiotlb_tbl_map_single(hwdev, start_dma_addr, phys, size,
 				      dir, attrs);
 }
@@ -718,12 +711,12 @@ swiotlb_alloc_buffer(struct device *dev, size_t size, dma_addr_t *dma_handle)
 		goto out_warn;
 
 	phys_addr = swiotlb_tbl_map_single(dev,
-			swiotlb_phys_to_dma(dev, io_tlb_start),
+			__phys_to_dma(dev, io_tlb_start),
 			0, size, DMA_FROM_DEVICE, 0);
 	if (phys_addr == SWIOTLB_MAP_ERROR)
 		goto out_warn;
 
-	*dma_handle = swiotlb_phys_to_dma(dev, phys_addr);
+	*dma_handle = __phys_to_dma(dev, phys_addr);
 
 	/* Confirm address can be DMA'd by device */
 	if (*dma_handle + size - 1 > dev->coherent_dma_mask)
@@ -861,10 +854,10 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
 	map = map_single(dev, phys, size, dir, attrs);
 	if (map == SWIOTLB_MAP_ERROR) {
 		swiotlb_full(dev, size, dir, 1);
-		return swiotlb_phys_to_dma(dev, io_tlb_overflow_buffer);
+		return __phys_to_dma(dev, io_tlb_overflow_buffer);
 	}
 
-	dev_addr = swiotlb_phys_to_dma(dev, map);
+	dev_addr = __phys_to_dma(dev, map);
 
 	/* Ensure that the address returned is DMA'ble */
 	if (dma_capable(dev, dev_addr, size))
@@ -873,7 +866,7 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
 	attrs |= DMA_ATTR_SKIP_CPU_SYNC;
 	swiotlb_tbl_unmap_single(dev, map, size, dir, attrs);
 
-	return swiotlb_phys_to_dma(dev, io_tlb_overflow_buffer);
+	return __phys_to_dma(dev, io_tlb_overflow_buffer);
 }
 EXPORT_SYMBOL_GPL(swiotlb_map_page);
 
@@ -1007,7 +1000,7 @@ swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
 				sg_dma_len(sgl) = 0;
 				return 0;
 			}
-			sg->dma_address = swiotlb_phys_to_dma(hwdev, map);
+			sg->dma_address = __phys_to_dma(hwdev, map);
 		} else
 			sg->dma_address = dev_addr;
 		sg_dma_len(sg) = sg->length;
@@ -1075,7 +1068,7 @@ EXPORT_SYMBOL(swiotlb_sync_sg_for_device);
 int
 swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr)
 {
-	return (dma_addr == swiotlb_phys_to_dma(hwdev, io_tlb_overflow_buffer));
+	return (dma_addr == __phys_to_dma(hwdev, io_tlb_overflow_buffer));
 }
 EXPORT_SYMBOL(swiotlb_dma_mapping_error);
 
@@ -1088,7 +1081,7 @@ EXPORT_SYMBOL(swiotlb_dma_mapping_error);
 int
 swiotlb_dma_supported(struct device *hwdev, u64 mask)
 {
-	return swiotlb_phys_to_dma(hwdev, io_tlb_end - 1) <= mask;
+	return __phys_to_dma(hwdev, io_tlb_end - 1) <= mask;
 }
 EXPORT_SYMBOL(swiotlb_dma_supported);
 
-- 
2.14.2


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Subject: [PATCH 56/67] ia64: use generic swiotlb_ops
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These are identical to the ia64 ops, and would also support CMA
if enabled on ia64.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/ia64/Kconfig                |  5 +++++
 arch/ia64/hp/common/hwsw_iommu.c |  4 ++--
 arch/ia64/hp/common/sba_iommu.c  |  6 +++---
 arch/ia64/kernel/pci-swiotlb.c   | 38 +++-----------------------------------
 4 files changed, 13 insertions(+), 40 deletions(-)

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 888acdb163cb..29148fe4bf5a 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -146,6 +146,7 @@ config IA64_GENERIC
 	bool "generic"
 	select NUMA
 	select ACPI_NUMA
+	select DMA_DIRECT_OPS
 	select SWIOTLB
 	select PCI_MSI
 	help
@@ -166,6 +167,7 @@ config IA64_GENERIC
 
 config IA64_DIG
 	bool "DIG-compliant"
+	select DMA_DIRECT_OPS
 	select SWIOTLB
 
 config IA64_DIG_VTD
@@ -181,6 +183,7 @@ config IA64_HP_ZX1
 
 config IA64_HP_ZX1_SWIOTLB
 	bool "HP-zx1/sx1000 with software I/O TLB"
+	select DMA_DIRECT_OPS
 	select SWIOTLB
 	help
 	  Build a kernel that runs on HP zx1 and sx1000 systems even when they
@@ -204,6 +207,7 @@ config IA64_SGI_UV
 	bool "SGI-UV"
 	select NUMA
 	select ACPI_NUMA
+	select DMA_DIRECT_OPS
 	select SWIOTLB
 	help
 	  Selecting this option will optimize the kernel for use on UV based
@@ -214,6 +218,7 @@ config IA64_SGI_UV
 
 config IA64_HP_SIM
 	bool "Ski-simulator"
+	select DMA_DIRECT_OPS
 	select SWIOTLB
 	depends on !PM
 
diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c
index 41279f0442bd..58969039bed2 100644
--- a/arch/ia64/hp/common/hwsw_iommu.c
+++ b/arch/ia64/hp/common/hwsw_iommu.c
@@ -19,7 +19,7 @@
 #include <linux/export.h>
 #include <asm/machvec.h>
 
-extern const struct dma_map_ops sba_dma_ops, ia64_swiotlb_dma_ops;
+extern const struct dma_map_ops sba_dma_ops;
 
 /* swiotlb declarations & definitions: */
 extern int swiotlb_late_init_with_default_size (size_t size);
@@ -38,7 +38,7 @@ static inline int use_swiotlb(struct device *dev)
 const struct dma_map_ops *hwsw_dma_get_ops(struct device *dev)
 {
 	if (use_swiotlb(dev))
-		return &ia64_swiotlb_dma_ops;
+		return &swiotlb_dma_ops;
 	return &sba_dma_ops;
 }
 EXPORT_SYMBOL(hwsw_dma_get_ops);
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index d68849ad2ee1..6f05aba9012f 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -2093,7 +2093,7 @@ static int __init acpi_sba_ioc_init_acpi(void)
 /* This has to run before acpi_scan_init(). */
 arch_initcall(acpi_sba_ioc_init_acpi);
 
-extern const struct dma_map_ops ia64_swiotlb_dma_ops;
+extern const struct dma_map_ops swiotlb_dma_ops;
 
 static int __init
 sba_init(void)
@@ -2108,7 +2108,7 @@ sba_init(void)
 	 * a successful kdump kernel boot is to use the swiotlb.
 	 */
 	if (is_kdump_kernel()) {
-		dma_ops = &ia64_swiotlb_dma_ops;
+		dma_ops = &swiotlb_dma_ops;
 		if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0)
 			panic("Unable to initialize software I/O TLB:"
 				  " Try machvec=dig boot option");
@@ -2130,7 +2130,7 @@ sba_init(void)
 		 * If we didn't find something sba_iommu can claim, we
 		 * need to setup the swiotlb and switch to the dig machvec.
 		 */
-		dma_ops = &ia64_swiotlb_dma_ops;
+		dma_ops = &swiotlb_dma_ops;
 		if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0)
 			panic("Unable to find SBA IOMMU or initialize "
 			      "software I/O TLB: Try machvec=dig boot option");
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 4a9a6e58ad6a..0f8d5fbd86bd 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -6,8 +6,7 @@
 #include <linux/cache.h>
 #include <linux/module.h>
 #include <linux/dma-mapping.h>
-
-#include <asm/swiotlb.h>
+#include <linux/swiotlb.h>
 #include <asm/dma.h>
 #include <asm/iommu.h>
 #include <asm/machvec.h>
@@ -15,40 +14,9 @@
 int swiotlb __read_mostly;
 EXPORT_SYMBOL(swiotlb);
 
-static void *ia64_swiotlb_alloc_coherent(struct device *dev, size_t size,
-					 dma_addr_t *dma_handle, gfp_t gfp,
-					 unsigned long attrs)
-{
-	if (dev->coherent_dma_mask != DMA_BIT_MASK(64))
-		gfp |= GFP_DMA32;
-	return swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
-}
-
-static void ia64_swiotlb_free_coherent(struct device *dev, size_t size,
-				       void *vaddr, dma_addr_t dma_addr,
-				       unsigned long attrs)
-{
-	swiotlb_free_coherent(dev, size, vaddr, dma_addr);
-}
-
-const struct dma_map_ops ia64_swiotlb_dma_ops = {
-	.alloc = ia64_swiotlb_alloc_coherent,
-	.free = ia64_swiotlb_free_coherent,
-	.map_page = swiotlb_map_page,
-	.unmap_page = swiotlb_unmap_page,
-	.map_sg = swiotlb_map_sg_attrs,
-	.unmap_sg = swiotlb_unmap_sg_attrs,
-	.sync_single_for_cpu = swiotlb_sync_single_for_cpu,
-	.sync_single_for_device = swiotlb_sync_single_for_device,
-	.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
-	.sync_sg_for_device = swiotlb_sync_sg_for_device,
-	.dma_supported = swiotlb_dma_supported,
-	.mapping_error = swiotlb_dma_mapping_error,
-};
-
 void __init swiotlb_dma_init(void)
 {
-	dma_ops = &ia64_swiotlb_dma_ops;
+	dma_ops = &swiotlb_dma_ops;
 	swiotlb_init(1);
 }
 
@@ -60,7 +28,7 @@ void __init pci_swiotlb_init(void)
 		printk(KERN_INFO "PCI-DMA: Re-initialize machine vector.\n");
 		machvec_init("dig");
 		swiotlb_init(1);
-		dma_ops = &ia64_swiotlb_dma_ops;
+		dma_ops = &swiotlb_dma_ops;
 #else
 		panic("Unable to find Intel IOMMU");
 #endif
-- 
2.14.2

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From - Thu Nov 08 21:40:43 2018
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Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel.iommu,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 58/67] ia64: remove an ifdef around the content of pci-dma.c
Date: Fri, 29 Dec 2017 09:19:02 +0100
Lines: 38
Approved: news@gmane.org
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The file is only compiled if CONFIG_INTEL_IOMMU is set to start with.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/ia64/kernel/pci-dma.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 35e0cad33b7d..b5df084c0af4 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -12,12 +12,7 @@
 #include <asm/iommu.h>
 #include <asm/machvec.h>
 #include <linux/dma-mapping.h>
-
-
-#ifdef CONFIG_INTEL_IOMMU
-
 #include <linux/kernel.h>
-
 #include <asm/page.h>
 
 dma_addr_t bad_dma_address __read_mostly;
@@ -115,5 +110,3 @@ void __init pci_iommu_alloc(void)
 	}
 #endif /* CONFIG_SWIOTLB */
 }
-
-#endif
-- 
2.14.2

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From - Thu Nov 08 21:40:43 2018
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Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 61/67] tile: use generic swiotlb_ops
Date: Fri, 29 Dec 2017 09:19:05 +0100
Lines: 84
Approved: news@gmane.org
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These are identical to the tile ops, and would also support CMA
if enabled on tile.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/tile/Kconfig          |  1 +
 arch/tile/kernel/pci-dma.c | 36 +++---------------------------------
 2 files changed, 4 insertions(+), 33 deletions(-)

diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 30c586686f29..ef9d403cbbe4 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -261,6 +261,7 @@ config NEED_SG_DMA_LENGTH
 config SWIOTLB
 	bool
 	default TILEGX
+	select DMA_DIRECT_OPS
 	select IOMMU_HELPER
 	select NEED_SG_DMA_LENGTH
 	select ARCH_HAS_DMA_SET_COHERENT_MASK
diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c
index a9b48520eeb9..6e9365234b6a 100644
--- a/arch/tile/kernel/pci-dma.c
+++ b/arch/tile/kernel/pci-dma.c
@@ -511,39 +511,9 @@ EXPORT_SYMBOL(gx_pci_dma_map_ops);
 /* PCI DMA mapping functions for legacy PCI devices */
 
 #ifdef CONFIG_SWIOTLB
-static void *tile_swiotlb_alloc_coherent(struct device *dev, size_t size,
-					 dma_addr_t *dma_handle, gfp_t gfp,
-					 unsigned long attrs)
-{
-	gfp |= GFP_DMA32;
-	return swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
-}
-
-static void tile_swiotlb_free_coherent(struct device *dev, size_t size,
-				       void *vaddr, dma_addr_t dma_addr,
-				       unsigned long attrs)
-{
-	swiotlb_free_coherent(dev, size, vaddr, dma_addr);
-}
-
-static const struct dma_map_ops pci_swiotlb_dma_ops = {
-	.alloc = tile_swiotlb_alloc_coherent,
-	.free = tile_swiotlb_free_coherent,
-	.map_page = swiotlb_map_page,
-	.unmap_page = swiotlb_unmap_page,
-	.map_sg = swiotlb_map_sg_attrs,
-	.unmap_sg = swiotlb_unmap_sg_attrs,
-	.sync_single_for_cpu = swiotlb_sync_single_for_cpu,
-	.sync_single_for_device = swiotlb_sync_single_for_device,
-	.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
-	.sync_sg_for_device = swiotlb_sync_sg_for_device,
-	.dma_supported = swiotlb_dma_supported,
-	.mapping_error = swiotlb_dma_mapping_error,
-};
-
 static const struct dma_map_ops pci_hybrid_dma_ops = {
-	.alloc = tile_swiotlb_alloc_coherent,
-	.free = tile_swiotlb_free_coherent,
+	.alloc = swiotlb_alloc,
+	.free = swiotlb_free,
 	.map_page = tile_pci_dma_map_page,
 	.unmap_page = tile_pci_dma_unmap_page,
 	.map_sg = tile_pci_dma_map_sg,
@@ -554,7 +524,7 @@ static const struct dma_map_ops pci_hybrid_dma_ops = {
 	.sync_sg_for_device = tile_pci_dma_sync_sg_for_device,
 };
 
-const struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops;
+const struct dma_map_ops *gx_legacy_pci_dma_map_ops = &swiotlb_dma_ops;
 const struct dma_map_ops *gx_hybrid_pci_dma_map_ops = &pci_hybrid_dma_ops;
 #else
 const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
-- 
2.14.2

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From - Thu Nov 08 21:40:44 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 60/67] tile: replace ZONE_DMA with ZONE_DMA32
Date: Fri, 29 Dec 2017 09:19:04 +0100
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To: iommu@lists.linux-foundation.org
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tile uses ZONE_DMA for allocations below 32-bits.  These days we
name the zone for that ZONE_DMA32, which will allow to use the
dma-direct and generic swiotlb code as-is, so rename it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/tile/Kconfig          | 2 +-
 arch/tile/kernel/pci-dma.c | 4 ++--
 arch/tile/kernel/setup.c   | 8 ++++----
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 02f269cfa538..30c586686f29 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -249,7 +249,7 @@ config HIGHMEM
 
 	  If unsure, say "true".
 
-config ZONE_DMA
+config ZONE_DMA32
 	def_bool y
 
 config IOMMU_HELPER
diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c
index 9072e2c25e59..a9b48520eeb9 100644
--- a/arch/tile/kernel/pci-dma.c
+++ b/arch/tile/kernel/pci-dma.c
@@ -54,7 +54,7 @@ static void *tile_dma_alloc_coherent(struct device *dev, size_t size,
 	 * which case we will return NULL.  But such devices are uncommon.
 	 */
 	if (dma_mask <= DMA_BIT_MASK(32)) {
-		gfp |= GFP_DMA;
+		gfp |= GFP_DMA32;
 		node = 0;
 	}
 
@@ -515,7 +515,7 @@ static void *tile_swiotlb_alloc_coherent(struct device *dev, size_t size,
 					 dma_addr_t *dma_handle, gfp_t gfp,
 					 unsigned long attrs)
 {
-	gfp |= GFP_DMA;
+	gfp |= GFP_DMA32;
 	return swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
 }
 
diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
index ad83c1e66dbd..eb4e198f6f93 100644
--- a/arch/tile/kernel/setup.c
+++ b/arch/tile/kernel/setup.c
@@ -814,11 +814,11 @@ static void __init zone_sizes_init(void)
 #endif
 
 		if (start < dma_end) {
-			zones_size[ZONE_DMA] = min(zones_size[ZONE_NORMAL],
+			zones_size[ZONE_DMA32] = min(zones_size[ZONE_NORMAL],
 						   dma_end - start);
-			zones_size[ZONE_NORMAL] -= zones_size[ZONE_DMA];
+			zones_size[ZONE_NORMAL] -= zones_size[ZONE_DMA32];
 		} else {
-			zones_size[ZONE_DMA] = 0;
+			zones_size[ZONE_DMA32] = 0;
 		}
 
 		/* Take zone metadata from controller 0 if we're isolnode. */
@@ -830,7 +830,7 @@ static void __init zone_sizes_init(void)
 		       PFN_UP(node_percpu[i]));
 
 		/* Track the type of memory on each node */
-		if (zones_size[ZONE_NORMAL] || zones_size[ZONE_DMA])
+		if (zones_size[ZONE_NORMAL] || zones_size[ZONE_DMA32])
 			node_set_state(i, N_NORMAL_MEMORY);
 #ifdef CONFIG_HIGHMEM
 		if (end != start)
-- 
2.14.2

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From - Thu Nov 08 21:40:44 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 64/67] arm64: replace ZONE_DMA with ZONE_DMA32
Date: Fri, 29 Dec 2017 09:19:08 +0100
Lines: 111
Approved: news@gmane.org
Message-ID: <20171229081911.2802-65-hch@lst.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2654257>

arm64 uses ZONE_DMA for allocations below 32-bits.  These days we
name the zone for that ZONE_DMA32, which will allow to use the
dma-direct and generic swiotlb code as-is, so rename it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arm64/Kconfig          |  2 +-
 arch/arm64/mm/dma-mapping.c |  6 +++---
 arch/arm64/mm/init.c        | 16 ++++++++--------
 3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c9a7e9e1414f..6b6985f15d02 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -227,7 +227,7 @@ config GENERIC_CSUM
 config GENERIC_CALIBRATE_DELAY
 	def_bool y
 
-config ZONE_DMA
+config ZONE_DMA32
 	def_bool y
 
 config HAVE_GENERIC_GUP
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 6840426bbe77..0d641875b20e 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -95,9 +95,9 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size,
 				  dma_addr_t *dma_handle, gfp_t flags,
 				  unsigned long attrs)
 {
-	if (IS_ENABLED(CONFIG_ZONE_DMA) &&
+	if (IS_ENABLED(CONFIG_ZONE_DMA32) &&
 	    dev->coherent_dma_mask <= DMA_BIT_MASK(32))
-		flags |= GFP_DMA;
+		flags |= GFP_DMA32;
 	if (dev_get_cma_area(dev) && gfpflags_allow_blocking(flags)) {
 		struct page *page;
 		void *addr;
@@ -397,7 +397,7 @@ static int __init atomic_pool_init(void)
 		page = dma_alloc_from_contiguous(NULL, nr_pages,
 						 pool_size_order, GFP_KERNEL);
 	else
-		page = alloc_pages(GFP_DMA, pool_size_order);
+		page = alloc_pages(GFP_DMA32, pool_size_order);
 
 	if (page) {
 		int ret;
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 00e7b900ca41..8f03276443c9 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -217,7 +217,7 @@ static void __init reserve_elfcorehdr(void)
 }
 #endif /* CONFIG_CRASH_DUMP */
 /*
- * Return the maximum physical address for ZONE_DMA (DMA_BIT_MASK(32)). It
+ * Return the maximum physical address for ZONE_DMA32 (DMA_BIT_MASK(32)). It
  * currently assumes that for memory starting above 4G, 32-bit devices will
  * use a DMA offset.
  */
@@ -233,8 +233,8 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
 {
 	unsigned long max_zone_pfns[MAX_NR_ZONES]  = {0};
 
-	if (IS_ENABLED(CONFIG_ZONE_DMA))
-		max_zone_pfns[ZONE_DMA] = PFN_DOWN(max_zone_dma_phys());
+	if (IS_ENABLED(CONFIG_ZONE_DMA32))
+		max_zone_pfns[ZONE_DMA32] = PFN_DOWN(max_zone_dma_phys());
 	max_zone_pfns[ZONE_NORMAL] = max;
 
 	free_area_init_nodes(max_zone_pfns);
@@ -251,9 +251,9 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
 	memset(zone_size, 0, sizeof(zone_size));
 
 	/* 4GB maximum for 32-bit only capable devices */
-#ifdef CONFIG_ZONE_DMA
+#ifdef CONFIG_ZONE_DMA32
 	max_dma = PFN_DOWN(arm64_dma_phys_limit);
-	zone_size[ZONE_DMA] = max_dma - min;
+	zone_size[ZONE_DMA32] = max_dma - min;
 #endif
 	zone_size[ZONE_NORMAL] = max - max_dma;
 
@@ -266,10 +266,10 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
 		if (start >= max)
 			continue;
 
-#ifdef CONFIG_ZONE_DMA
+#ifdef CONFIG_ZONE_DMA32
 		if (start < max_dma) {
 			unsigned long dma_end = min(end, max_dma);
-			zhole_size[ZONE_DMA] -= dma_end - start;
+			zhole_size[ZONE_DMA32] -= dma_end - start;
 		}
 #endif
 		if (end > max_dma) {
@@ -467,7 +467,7 @@ void __init arm64_memblock_init(void)
 	early_init_fdt_scan_reserved_mem();
 
 	/* 4GB maximum for 32-bit only capable devices */
-	if (IS_ENABLED(CONFIG_ZONE_DMA))
+	if (IS_ENABLED(CONFIG_ZONE_DMA32))
 		arm64_dma_phys_limit = max_zone_dma_phys();
 	else
 		arm64_dma_phys_limit = PHYS_MASK + 1;
-- 
2.14.2



From - Thu Nov 08 21:40:44 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 66/67] swiotlb: remove swiotlb_{alloc,free}_coherent
Date: Fri, 29 Dec 2017 09:19:10 +0100
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Unused now that everyone uses swiotlb_{alloc,free}.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 include/linux/swiotlb.h |  8 --------
 lib/swiotlb.c           | 41 -----------------------------------------
 2 files changed, 49 deletions(-)

diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 5b1f2a00491c..965be92c33b5 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -72,14 +72,6 @@ void *swiotlb_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle,
 void swiotlb_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_addr, unsigned long attrs);
 
-extern void
-*swiotlb_alloc_coherent(struct device *hwdev, size_t size,
-			dma_addr_t *dma_handle, gfp_t flags);
-
-extern void
-swiotlb_free_coherent(struct device *hwdev, size_t size,
-		      void *vaddr, dma_addr_t dma_handle);
-
 extern dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
 				   unsigned long offset, size_t size,
 				   enum dma_data_direction dir,
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 4ea0b5710618..77a40b508db8 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -157,13 +157,6 @@ unsigned long swiotlb_size_or_default(void)
 	return size ? size : (IO_TLB_DEFAULT_SIZE);
 }
 
-/* Note that this doesn't work with highmem page */
-static dma_addr_t swiotlb_virt_to_bus(struct device *hwdev,
-				      volatile void *address)
-{
-	return phys_to_dma(hwdev, virt_to_phys(address));
-}
-
 static bool no_iotlb_memory;
 
 void swiotlb_print_info(void)
@@ -743,31 +736,6 @@ swiotlb_alloc_buffer(struct device *dev, size_t size, dma_addr_t *dma_handle)
 	return NULL;
 }
 
-void *
-swiotlb_alloc_coherent(struct device *hwdev, size_t size,
-		       dma_addr_t *dma_handle, gfp_t flags)
-{
-	int order = get_order(size);
-	void *ret;
-
-	ret = (void *)__get_free_pages(flags, order);
-	if (ret) {
-		*dma_handle = swiotlb_virt_to_bus(hwdev, ret);
-		if (*dma_handle  + size - 1 <= hwdev->coherent_dma_mask) {
-			memset(ret, 0, size);
-			return ret;
-		}
-
-		/*
-		 * The allocated memory isn't reachable by the device.
-		 */
-		free_pages((unsigned long) ret, order);
-	}
-
-	return swiotlb_alloc_buffer(hwdev, size, dma_handle);
-}
-EXPORT_SYMBOL(swiotlb_alloc_coherent);
-
 static bool swiotlb_free_buffer(struct device *dev, size_t size,
 		dma_addr_t dma_addr)
 {
@@ -787,15 +755,6 @@ static bool swiotlb_free_buffer(struct device *dev, size_t size,
 	return true;
 }
 
-void
-swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
-		      dma_addr_t dev_addr)
-{
-	if (!swiotlb_free_buffer(hwdev, size, dev_addr))
-		free_pages((unsigned long)vaddr, get_order(size));
-}
-EXPORT_SYMBOL(swiotlb_free_coherent);
-
 static void
 swiotlb_full(struct device *dev, size_t size, enum dma_data_direction dir,
 	     int do_panic)
-- 
2.14.2


From - Thu Nov 08 21:40:44 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 67/67] swiotlb: remove various exports
Date: Fri, 29 Dec 2017 09:19:11 +0100
Lines: 119
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2654259>

All these symbols are only used by arch dma_ops implementations or
xen-swiotlb.  None of which can be modular.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/swiotlb.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 77a40b508db8..823e1055a394 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -591,7 +591,6 @@ phys_addr_t swiotlb_tbl_map_single(struct device *hwdev,
 
 	return tlb_addr;
 }
-EXPORT_SYMBOL_GPL(swiotlb_tbl_map_single);
 
 /*
  * Allocates bounce buffer and returns its kernel virtual address.
@@ -661,7 +660,6 @@ void swiotlb_tbl_unmap_single(struct device *hwdev, phys_addr_t tlb_addr,
 	}
 	spin_unlock_irqrestore(&io_tlb_lock, flags);
 }
-EXPORT_SYMBOL_GPL(swiotlb_tbl_unmap_single);
 
 void swiotlb_tbl_sync_single(struct device *hwdev, phys_addr_t tlb_addr,
 			     size_t size, enum dma_data_direction dir,
@@ -693,7 +691,6 @@ void swiotlb_tbl_sync_single(struct device *hwdev, phys_addr_t tlb_addr,
 		BUG();
 	}
 }
-EXPORT_SYMBOL_GPL(swiotlb_tbl_sync_single);
 
 static void *
 swiotlb_alloc_buffer(struct device *dev, size_t size, dma_addr_t *dma_handle)
@@ -827,7 +824,6 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
 
 	return __phys_to_dma(dev, io_tlb_overflow_buffer);
 }
-EXPORT_SYMBOL_GPL(swiotlb_map_page);
 
 /*
  * Unmap a single streaming mode DMA translation.  The dma_addr and size must
@@ -868,7 +864,6 @@ void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
 {
 	unmap_single(hwdev, dev_addr, size, dir, attrs);
 }
-EXPORT_SYMBOL_GPL(swiotlb_unmap_page);
 
 /*
  * Make physical memory consistent for a single streaming mode DMA translation
@@ -906,7 +901,6 @@ swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
 {
 	swiotlb_sync_single(hwdev, dev_addr, size, dir, SYNC_FOR_CPU);
 }
-EXPORT_SYMBOL(swiotlb_sync_single_for_cpu);
 
 void
 swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
@@ -914,7 +908,6 @@ swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
 {
 	swiotlb_sync_single(hwdev, dev_addr, size, dir, SYNC_FOR_DEVICE);
 }
-EXPORT_SYMBOL(swiotlb_sync_single_for_device);
 
 /*
  * Map a set of buffers described by scatterlist in streaming mode for DMA.
@@ -966,7 +959,6 @@ swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
 	}
 	return nelems;
 }
-EXPORT_SYMBOL(swiotlb_map_sg_attrs);
 
 /*
  * Unmap a set of streaming mode DMA translations.  Again, cpu read rules
@@ -986,7 +978,6 @@ swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
 		unmap_single(hwdev, sg->dma_address, sg_dma_len(sg), dir,
 			     attrs);
 }
-EXPORT_SYMBOL(swiotlb_unmap_sg_attrs);
 
 /*
  * Make physical memory consistent for a set of streaming mode DMA translations
@@ -1014,7 +1005,6 @@ swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
 {
 	swiotlb_sync_sg(hwdev, sg, nelems, dir, SYNC_FOR_CPU);
 }
-EXPORT_SYMBOL(swiotlb_sync_sg_for_cpu);
 
 void
 swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
@@ -1022,14 +1012,12 @@ swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
 {
 	swiotlb_sync_sg(hwdev, sg, nelems, dir, SYNC_FOR_DEVICE);
 }
-EXPORT_SYMBOL(swiotlb_sync_sg_for_device);
 
 int
 swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr)
 {
 	return (dma_addr == __phys_to_dma(hwdev, io_tlb_overflow_buffer));
 }
-EXPORT_SYMBOL(swiotlb_dma_mapping_error);
 
 /*
  * Return whether the given device DMA address mask can be supported
@@ -1042,7 +1030,6 @@ swiotlb_dma_supported(struct device *hwdev, u64 mask)
 {
 	return __phys_to_dma(hwdev, io_tlb_end - 1) <= mask;
 }
-EXPORT_SYMBOL(swiotlb_dma_supported);
 
 #ifdef CONFIG_DMA_DIRECT_OPS
 void *swiotlb_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
-- 
2.14.2



From - Thu Nov 08 21:40:44 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 65/67] arm64: use swiotlb_alloc and swiotlb_free
Date: Fri, 29 Dec 2017 09:19:09 +0100
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The generic swiotlb_alloc and swiotlb_free routines already take care
of CMA allocations and adding GFP_DMA32 where needed, so use them
instead of the arm specific helpers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arm64/Kconfig          |  1 +
 arch/arm64/mm/dma-mapping.c | 46 +++------------------------------------------
 2 files changed, 4 insertions(+), 43 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 6b6985f15d02..53205c02b18a 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -59,6 +59,7 @@ config ARM64
 	select COMMON_CLK
 	select CPU_PM if (SUSPEND || CPU_IDLE)
 	select DCACHE_WORD_ACCESS
+	select DMA_DIRECT_OPS
 	select EDAC_SUPPORT
 	select FRAME_POINTER
 	select GENERIC_ALLOCATOR
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 0d641875b20e..a96ec0181818 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -91,46 +91,6 @@ static int __free_from_pool(void *start, size_t size)
 	return 1;
 }
 
-static void *__dma_alloc_coherent(struct device *dev, size_t size,
-				  dma_addr_t *dma_handle, gfp_t flags,
-				  unsigned long attrs)
-{
-	if (IS_ENABLED(CONFIG_ZONE_DMA32) &&
-	    dev->coherent_dma_mask <= DMA_BIT_MASK(32))
-		flags |= GFP_DMA32;
-	if (dev_get_cma_area(dev) && gfpflags_allow_blocking(flags)) {
-		struct page *page;
-		void *addr;
-
-		page = dma_alloc_from_contiguous(dev, size >> PAGE_SHIFT,
-						 get_order(size), flags);
-		if (!page)
-			return NULL;
-
-		*dma_handle = phys_to_dma(dev, page_to_phys(page));
-		addr = page_address(page);
-		memset(addr, 0, size);
-		return addr;
-	} else {
-		return swiotlb_alloc_coherent(dev, size, dma_handle, flags);
-	}
-}
-
-static void __dma_free_coherent(struct device *dev, size_t size,
-				void *vaddr, dma_addr_t dma_handle,
-				unsigned long attrs)
-{
-	bool freed;
-	phys_addr_t paddr = dma_to_phys(dev, dma_handle);
-
-
-	freed = dma_release_from_contiguous(dev,
-					phys_to_page(paddr),
-					size >> PAGE_SHIFT);
-	if (!freed)
-		swiotlb_free_coherent(dev, size, vaddr, dma_handle);
-}
-
 static void *__dma_alloc(struct device *dev, size_t size,
 			 dma_addr_t *dma_handle, gfp_t flags,
 			 unsigned long attrs)
@@ -152,7 +112,7 @@ static void *__dma_alloc(struct device *dev, size_t size,
 		return addr;
 	}
 
-	ptr = __dma_alloc_coherent(dev, size, dma_handle, flags, attrs);
+	ptr = swiotlb_alloc(dev, size, dma_handle, flags, attrs);
 	if (!ptr)
 		goto no_mem;
 
@@ -173,7 +133,7 @@ static void *__dma_alloc(struct device *dev, size_t size,
 	return coherent_ptr;
 
 no_map:
-	__dma_free_coherent(dev, size, ptr, *dma_handle, attrs);
+	swiotlb_free(dev, size, ptr, *dma_handle, attrs);
 no_mem:
 	return NULL;
 }
@@ -191,7 +151,7 @@ static void __dma_free(struct device *dev, size_t size,
 			return;
 		vunmap(vaddr);
 	}
-	__dma_free_coherent(dev, size, swiotlb_addr, dma_handle, attrs);
+	swiotlb_free(dev, size, swiotlb_addr, dma_handle, attrs);
 }
 
 static dma_addr_t __swiotlb_map_page(struct device *dev, struct page *page,
-- 
2.14.2

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From - Thu Nov 08 21:40:44 2018
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Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 63/67] mips: use swiotlb_{alloc,free}
Date: Fri, 29 Dec 2017 09:19:07 +0100
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These already include the GFP_DMA/GFP_DMA32 usage, and will use CMA
memory if enabled, thus avoiding the GFP_NORETRY hack.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/mips/cavium-octeon/Kconfig           |  1 +
 arch/mips/cavium-octeon/dma-octeon.c      | 26 +++-----------------------
 arch/mips/loongson64/Kconfig              |  1 +
 arch/mips/loongson64/common/dma-swiotlb.c | 21 ++-------------------
 4 files changed, 7 insertions(+), 42 deletions(-)

diff --git a/arch/mips/cavium-octeon/Kconfig b/arch/mips/cavium-octeon/Kconfig
index 204a1670fd9b..b5eee1a57d6c 100644
--- a/arch/mips/cavium-octeon/Kconfig
+++ b/arch/mips/cavium-octeon/Kconfig
@@ -75,6 +75,7 @@ config NEED_SG_DMA_LENGTH
 
 config SWIOTLB
 	def_bool y
+	select DMA_DIRECT_OPS
 	select IOMMU_HELPER
 	select NEED_SG_DMA_LENGTH
 
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index 6440ad3f9e3b..7b335ab21697 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -159,33 +159,13 @@ static void octeon_dma_sync_sg_for_device(struct device *dev,
 static void *octeon_dma_alloc_coherent(struct device *dev, size_t size,
 	dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
-	void *ret;
-
-	if (IS_ENABLED(CONFIG_ZONE_DMA) && dev == NULL)
-		gfp |= __GFP_DMA;
-	else if (IS_ENABLED(CONFIG_ZONE_DMA) &&
-		 dev->coherent_dma_mask <= DMA_BIT_MASK(24))
-		gfp |= __GFP_DMA;
-	else if (IS_ENABLED(CONFIG_ZONE_DMA32) &&
-		 dev->coherent_dma_mask <= DMA_BIT_MASK(32))
-		gfp |= __GFP_DMA32;
-
-	/* Don't invoke OOM killer */
-	gfp |= __GFP_NORETRY;
-
-	ret = swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
+	void *ret = swiotlb_alloc(dev, size, dma_handle, gfp, attrs);
 
 	mb();
 
 	return ret;
 }
 
-static void octeon_dma_free_coherent(struct device *dev, size_t size,
-	void *vaddr, dma_addr_t dma_handle, unsigned long attrs)
-{
-	swiotlb_free_coherent(dev, size, vaddr, dma_handle);
-}
-
 static dma_addr_t octeon_unity_phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
 	return paddr;
@@ -225,7 +205,7 @@ EXPORT_SYMBOL(__dma_to_phys);
 static struct octeon_dma_map_ops octeon_linear_dma_map_ops = {
 	.dma_map_ops = {
 		.alloc = octeon_dma_alloc_coherent,
-		.free = octeon_dma_free_coherent,
+		.free = swiotlb_free,
 		.map_page = octeon_dma_map_page,
 		.unmap_page = swiotlb_unmap_page,
 		.map_sg = octeon_dma_map_sg,
@@ -311,7 +291,7 @@ void __init plat_swiotlb_setup(void)
 static struct octeon_dma_map_ops _octeon_pci_dma_map_ops = {
 	.dma_map_ops = {
 		.alloc = octeon_dma_alloc_coherent,
-		.free = octeon_dma_free_coherent,
+		.free = swiotlb_free,
 		.map_page = octeon_dma_map_page,
 		.unmap_page = swiotlb_unmap_page,
 		.map_sg = octeon_dma_map_sg,
diff --git a/arch/mips/loongson64/Kconfig b/arch/mips/loongson64/Kconfig
index 0d249fc3cfe9..6f109bb54cdb 100644
--- a/arch/mips/loongson64/Kconfig
+++ b/arch/mips/loongson64/Kconfig
@@ -136,6 +136,7 @@ config SWIOTLB
 	bool "Soft IOMMU Support for All-Memory DMA"
 	default y
 	depends on CPU_LOONGSON3
+	select DMA_DIRECT_OPS
 	select IOMMU_HELPER
 	select NEED_SG_DMA_LENGTH
 	select NEED_DMA_MAP_STATE
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index 0a02ea70e39f..6a739f8ae110 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -13,29 +13,12 @@
 static void *loongson_dma_alloc_coherent(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
-	void *ret;
+	void *ret = swiotlb_alloc(dev, size, dma_handle, gfp, attrs);
 
-	if ((IS_ENABLED(CONFIG_ISA) && dev == NULL) ||
-	    (IS_ENABLED(CONFIG_ZONE_DMA) &&
-	     dev->coherent_dma_mask < DMA_BIT_MASK(32)))
-		gfp |= __GFP_DMA;
-	else if (IS_ENABLED(CONFIG_ZONE_DMA32) &&
-		 dev->coherent_dma_mask < DMA_BIT_MASK(40))
-		gfp |= __GFP_DMA32;
-
-	gfp |= __GFP_NORETRY;
-
-	ret = swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
 	mb();
 	return ret;
 }
 
-static void loongson_dma_free_coherent(struct device *dev, size_t size,
-		void *vaddr, dma_addr_t dma_handle, unsigned long attrs)
-{
-	swiotlb_free_coherent(dev, size, vaddr, dma_handle);
-}
-
 static dma_addr_t loongson_dma_map_page(struct device *dev, struct page *page,
 				unsigned long offset, size_t size,
 				enum dma_data_direction dir,
@@ -106,7 +89,7 @@ phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
 
 static const struct dma_map_ops loongson_dma_map_ops = {
 	.alloc = loongson_dma_alloc_coherent,
-	.free = loongson_dma_free_coherent,
+	.free = swiotlb_free,
 	.map_page = loongson_dma_map_page,
 	.unmap_page = swiotlb_unmap_page,
 	.map_sg = loongson_dma_map_sg,
-- 
2.14.2

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From - Thu Nov 08 21:40:44 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 62/67] mips/netlogic: remove swiotlb support
Date: Fri, 29 Dec 2017 09:19:06 +0100
Lines: 155
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nlm_swiotlb_dma_ops is unused code, so the whole swiotlb support is dead.
If it gets resurrected at some point it should use the generic
swiotlb_dma_ops instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/mips/include/asm/netlogic/common.h |  3 --
 arch/mips/netlogic/Kconfig              |  5 --
 arch/mips/netlogic/common/Makefile      |  1 -
 arch/mips/netlogic/common/nlm-dma.c     | 94 ---------------------------------
 4 files changed, 103 deletions(-)
 delete mode 100644 arch/mips/netlogic/common/nlm-dma.c

diff --git a/arch/mips/include/asm/netlogic/common.h b/arch/mips/include/asm/netlogic/common.h
index a6e6cbebe046..57616649b4f3 100644
--- a/arch/mips/include/asm/netlogic/common.h
+++ b/arch/mips/include/asm/netlogic/common.h
@@ -87,9 +87,6 @@ unsigned int nlm_get_cpu_frequency(void);
 extern const struct plat_smp_ops nlm_smp_ops;
 extern char nlm_reset_entry[], nlm_reset_entry_end[];
 
-/* SWIOTLB */
-extern const struct dma_map_ops nlm_swiotlb_dma_ops;
-
 extern unsigned int nlm_threads_per_core;
 extern cpumask_t nlm_cpumask;
 
diff --git a/arch/mips/netlogic/Kconfig b/arch/mips/netlogic/Kconfig
index 8296b13affd2..7fcfc7fe9f14 100644
--- a/arch/mips/netlogic/Kconfig
+++ b/arch/mips/netlogic/Kconfig
@@ -89,9 +89,4 @@ config IOMMU_HELPER
 config NEED_SG_DMA_LENGTH
 	bool
 
-config SWIOTLB
-	def_bool y
-	select NEED_SG_DMA_LENGTH
-	select IOMMU_HELPER
-
 endif
diff --git a/arch/mips/netlogic/common/Makefile b/arch/mips/netlogic/common/Makefile
index 60d00b5d748e..89f6e3f39fed 100644
--- a/arch/mips/netlogic/common/Makefile
+++ b/arch/mips/netlogic/common/Makefile
@@ -1,6 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 obj-y				+= irq.o time.o
-obj-y				+= nlm-dma.o
 obj-y				+= reset.o
 obj-$(CONFIG_SMP)		+= smp.o smpboot.o
 obj-$(CONFIG_EARLY_PRINTK)	+= earlycons.o
diff --git a/arch/mips/netlogic/common/nlm-dma.c b/arch/mips/netlogic/common/nlm-dma.c
deleted file mode 100644
index 49c975b6aa28..000000000000
--- a/arch/mips/netlogic/common/nlm-dma.c
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
-*  Copyright (C) 2003-2013 Broadcom Corporation
-*  All Rights Reserved
- *
- * This software is available to you under a choice of one of two
- * licenses.  You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the Broadcom
- * license below:
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
- * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-#include <linux/dma-mapping.h>
-#include <linux/scatterlist.h>
-#include <linux/bootmem.h>
-#include <linux/export.h>
-#include <linux/swiotlb.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-
-#include <asm/bootinfo.h>
-
-static char *nlm_swiotlb;
-
-static void *nlm_dma_alloc_coherent(struct device *dev, size_t size,
-	dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
-{
-#ifdef CONFIG_ZONE_DMA32
-	if (dev->coherent_dma_mask <= DMA_BIT_MASK(32))
-		gfp |= __GFP_DMA32;
-#endif
-
-	/* Don't invoke OOM killer */
-	gfp |= __GFP_NORETRY;
-
-	return swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
-}
-
-static void nlm_dma_free_coherent(struct device *dev, size_t size,
-	void *vaddr, dma_addr_t dma_handle, unsigned long attrs)
-{
-	swiotlb_free_coherent(dev, size, vaddr, dma_handle);
-}
-
-const struct dma_map_ops nlm_swiotlb_dma_ops = {
-	.alloc = nlm_dma_alloc_coherent,
-	.free = nlm_dma_free_coherent,
-	.map_page = swiotlb_map_page,
-	.unmap_page = swiotlb_unmap_page,
-	.map_sg = swiotlb_map_sg_attrs,
-	.unmap_sg = swiotlb_unmap_sg_attrs,
-	.sync_single_for_cpu = swiotlb_sync_single_for_cpu,
-	.sync_single_for_device = swiotlb_sync_single_for_device,
-	.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
-	.sync_sg_for_device = swiotlb_sync_sg_for_device,
-	.mapping_error = swiotlb_dma_mapping_error,
-	.dma_supported = swiotlb_dma_supported
-};
-
-void __init plat_swiotlb_setup(void)
-{
-	size_t swiotlbsize;
-	unsigned long swiotlb_nslabs;
-
-	swiotlbsize = 1 << 20; /* 1 MB for now */
-	swiotlb_nslabs = swiotlbsize >> IO_TLB_SHIFT;
-	swiotlb_nslabs = ALIGN(swiotlb_nslabs, IO_TLB_SEGSIZE);
-	swiotlbsize = swiotlb_nslabs << IO_TLB_SHIFT;
-
-	nlm_swiotlb = alloc_bootmem_low_pages(swiotlbsize);
-	swiotlb_init_with_tbl(nlm_swiotlb, swiotlb_nslabs, 1);
-}
-- 
2.14.2


From - Thu Nov 08 21:40:44 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 59/67] unicore32: use generic swiotlb_ops
Date: Fri, 29 Dec 2017 09:19:03 +0100
Lines: 118
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/1527>

These are identical to the unicore32 ops, and would also support CMA
if enabled on unicore32.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/unicore32/include/asm/dma-mapping.h |  9 +-----
 arch/unicore32/mm/Kconfig                |  1 +
 arch/unicore32/mm/Makefile               |  2 --
 arch/unicore32/mm/dma-swiotlb.c          | 48 --------------------------------
 4 files changed, 2 insertions(+), 58 deletions(-)
 delete mode 100644 arch/unicore32/mm/dma-swiotlb.c

diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index f2bfec273aa7..790bc2ef4af2 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -12,18 +12,11 @@
 #ifndef __UNICORE_DMA_MAPPING_H__
 #define __UNICORE_DMA_MAPPING_H__
 
-#ifdef __KERNEL__
-
-#include <linux/mm_types.h>
-#include <linux/scatterlist.h>
 #include <linux/swiotlb.h>
 
-extern const struct dma_map_ops swiotlb_dma_map_ops;
-
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	return &swiotlb_dma_map_ops;
+	return &swiotlb_dma_ops;
 }
 
-#endif /* __KERNEL__ */
 #endif
diff --git a/arch/unicore32/mm/Kconfig b/arch/unicore32/mm/Kconfig
index c256460cd363..e9154a59d561 100644
--- a/arch/unicore32/mm/Kconfig
+++ b/arch/unicore32/mm/Kconfig
@@ -42,6 +42,7 @@ config CPU_TLB_SINGLE_ENTRY_DISABLE
 
 config SWIOTLB
 	def_bool y
+	select DMA_DIRECT_OPS
 
 config IOMMU_HELPER
 	def_bool SWIOTLB
diff --git a/arch/unicore32/mm/Makefile b/arch/unicore32/mm/Makefile
index 681c0ef5ec9e..8106260583ab 100644
--- a/arch/unicore32/mm/Makefile
+++ b/arch/unicore32/mm/Makefile
@@ -6,8 +6,6 @@
 obj-y				:= extable.o fault.o init.o pgd.o mmu.o
 obj-y				+= flush.o ioremap.o
 
-obj-$(CONFIG_SWIOTLB)		+= dma-swiotlb.o
-
 obj-$(CONFIG_MODULES)		+= proc-syms.o
 
 obj-$(CONFIG_ALIGNMENT_TRAP)	+= alignment.o
diff --git a/arch/unicore32/mm/dma-swiotlb.c b/arch/unicore32/mm/dma-swiotlb.c
deleted file mode 100644
index 525413d6690e..000000000000
--- a/arch/unicore32/mm/dma-swiotlb.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Contains routines needed to support swiotlb for UniCore32.
- *
- * Copyright (C) 2010 Guan Xuetao
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-#include <linux/pci.h>
-#include <linux/cache.h>
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <linux/swiotlb.h>
-#include <linux/bootmem.h>
-
-#include <asm/dma.h>
-
-static void *unicore_swiotlb_alloc_coherent(struct device *dev, size_t size,
-					    dma_addr_t *dma_handle, gfp_t flags,
-					    unsigned long attrs)
-{
-	return swiotlb_alloc_coherent(dev, size, dma_handle, flags);
-}
-
-static void unicore_swiotlb_free_coherent(struct device *dev, size_t size,
-					  void *vaddr, dma_addr_t dma_addr,
-					  unsigned long attrs)
-{
-	swiotlb_free_coherent(dev, size, vaddr, dma_addr);
-}
-
-const struct dma_map_ops swiotlb_dma_map_ops = {
-	.alloc = unicore_swiotlb_alloc_coherent,
-	.free = unicore_swiotlb_free_coherent,
-	.map_sg = swiotlb_map_sg_attrs,
-	.unmap_sg = swiotlb_unmap_sg_attrs,
-	.dma_supported = swiotlb_dma_supported,
-	.map_page = swiotlb_map_page,
-	.unmap_page = swiotlb_unmap_page,
-	.sync_single_for_cpu = swiotlb_sync_single_for_cpu,
-	.sync_single_for_device = swiotlb_sync_single_for_device,
-	.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
-	.sync_sg_for_device = swiotlb_sync_sg_for_device,
-	.mapping_error = swiotlb_dma_mapping_error,
-};
-EXPORT_SYMBOL(swiotlb_dma_map_ops);
-- 
2.14.2


From - Thu Nov 08 21:40:44 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 57/67] ia64: clean up swiotlb support
Date: Fri, 29 Dec 2017 09:19:01 +0100
Lines: 160
Approved: news@gmane.org
Message-ID: <20171229081911.2802-58-hch@lst.de>
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Move the few remaining bits of swiotlb glue towards their callers,
and remove the pointless on ia64 swiotlb variable.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/ia64/include/asm/dma-mapping.h |  1 -
 arch/ia64/include/asm/swiotlb.h     | 18 ------------------
 arch/ia64/kernel/dma-mapping.c      |  9 +++++++++
 arch/ia64/kernel/pci-dma.c          | 12 ++++++++++--
 arch/ia64/kernel/pci-swiotlb.c      | 36 ------------------------------------
 drivers/iommu/intel-iommu.c         |  2 +-
 6 files changed, 20 insertions(+), 58 deletions(-)
 delete mode 100644 arch/ia64/include/asm/swiotlb.h
 delete mode 100644 arch/ia64/kernel/pci-swiotlb.c

diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index eabee56d995c..76e4d6632d68 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -8,7 +8,6 @@
  */
 #include <asm/machvec.h>
 #include <linux/scatterlist.h>
-#include <asm/swiotlb.h>
 #include <linux/dma-debug.h>
 
 #define ARCH_HAS_DMA_GET_REQUIRED_MASK
diff --git a/arch/ia64/include/asm/swiotlb.h b/arch/ia64/include/asm/swiotlb.h
deleted file mode 100644
index 841e2c7d0b21..000000000000
--- a/arch/ia64/include/asm/swiotlb.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef ASM_IA64__SWIOTLB_H
-#define ASM_IA64__SWIOTLB_H
-
-#include <linux/dma-mapping.h>
-#include <linux/swiotlb.h>
-
-#ifdef CONFIG_SWIOTLB
-extern int swiotlb;
-extern void pci_swiotlb_init(void);
-#else
-#define swiotlb 0
-static inline void pci_swiotlb_init(void)
-{
-}
-#endif
-
-#endif /* ASM_IA64__SWIOTLB_H */
diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
index 7a82c9259609..f2d57e66fd86 100644
--- a/arch/ia64/kernel/dma-mapping.c
+++ b/arch/ia64/kernel/dma-mapping.c
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/dma-mapping.h>
+#include <linux/swiotlb.h>
 #include <linux/export.h>
 
 /* Set this to 1 if there is a HW IOMMU in the system */
@@ -23,3 +24,11 @@ const struct dma_map_ops *dma_get_ops(struct device *dev)
 	return dma_ops;
 }
 EXPORT_SYMBOL(dma_get_ops);
+
+#ifdef CONFIG_SWIOTLB
+void __init swiotlb_dma_init(void)
+{
+	dma_ops = &swiotlb_dma_ops;
+	swiotlb_init(1);
+}
+#endif
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 3ba87c22dfbc..35e0cad33b7d 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -104,8 +104,16 @@ void __init pci_iommu_alloc(void)
 	detect_intel_iommu();
 
 #ifdef CONFIG_SWIOTLB
-	pci_swiotlb_init();
-#endif
+	if (!iommu_detected) {
+#ifdef CONFIG_IA64_GENERIC
+		printk(KERN_INFO "PCI-DMA: Re-initialize machine vector.\n");
+		machvec_init("dig");
+		swiotlb_dma_init();
+#else
+		panic("Unable to find Intel IOMMU");
+#endif /* CONFIG_IA64_GENERIC */
+	}
+#endif /* CONFIG_SWIOTLB */
 }
 
 #endif
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
deleted file mode 100644
index 0f8d5fbd86bd..000000000000
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ /dev/null
@@ -1,36 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/* Glue code to lib/swiotlb.c */
-
-#include <linux/pci.h>
-#include <linux/gfp.h>
-#include <linux/cache.h>
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <linux/swiotlb.h>
-#include <asm/dma.h>
-#include <asm/iommu.h>
-#include <asm/machvec.h>
-
-int swiotlb __read_mostly;
-EXPORT_SYMBOL(swiotlb);
-
-void __init swiotlb_dma_init(void)
-{
-	dma_ops = &swiotlb_dma_ops;
-	swiotlb_init(1);
-}
-
-void __init pci_swiotlb_init(void)
-{
-	if (!iommu_detected) {
-#ifdef CONFIG_IA64_GENERIC
-		swiotlb = 1;
-		printk(KERN_INFO "PCI-DMA: Re-initialize machine vector.\n");
-		machvec_init("dig");
-		swiotlb_init(1);
-		dma_ops = &swiotlb_dma_ops;
-#else
-		panic("Unable to find Intel IOMMU");
-#endif
-	}
-}
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 6c9df0773b78..569a9328e53e 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -4807,7 +4807,7 @@ int __init intel_iommu_init(void)
 	up_write(&dmar_global_lock);
 	pr_info("Intel(R) Virtualization Technology for Directed I/O\n");
 
-#ifdef CONFIG_SWIOTLB
+#if defined(CONFIG_X86) && defined(CONFIG_SWIOTLB)
 	swiotlb = 0;
 #endif
 	dma_ops = &intel_dma_ops;
-- 
2.14.2

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From - Thu Nov 08 21:40:44 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 55/67] ia64: replace ZONE_DMA with ZONE_DMA32
Date: Fri, 29 Dec 2017 09:18:59 +0100
Lines: 95
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/56091>

ia64 uses ZONE_DMA for allocations below 32-bits.  These days we
name the zone for that ZONE_DMA32, which will allow to use the
dma-direct and generic swiotlb code as-is, so rename it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/ia64/Kconfig              | 2 +-
 arch/ia64/kernel/pci-swiotlb.c | 2 +-
 arch/ia64/mm/contig.c          | 4 ++--
 arch/ia64/mm/discontig.c       | 8 ++++----
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 4d18fca885ee..888acdb163cb 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -66,7 +66,7 @@ config 64BIT
 	select ATA_NONSTANDARD if ATA
 	default y
 
-config ZONE_DMA
+config ZONE_DMA32
 	def_bool y
 	depends on !IA64_SGI_SN2
 
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index f1ae873a8c35..4a9a6e58ad6a 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -20,7 +20,7 @@ static void *ia64_swiotlb_alloc_coherent(struct device *dev, size_t size,
 					 unsigned long attrs)
 {
 	if (dev->coherent_dma_mask != DMA_BIT_MASK(64))
-		gfp |= GFP_DMA;
+		gfp |= GFP_DMA32;
 	return swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
 }
 
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index 52715a71aede..7d64b30913d1 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -237,9 +237,9 @@ paging_init (void)
 	unsigned long max_zone_pfns[MAX_NR_ZONES];
 
 	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
-#ifdef CONFIG_ZONE_DMA
+#ifdef CONFIG_ZONE_DMA32
 	max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
-	max_zone_pfns[ZONE_DMA] = max_dma;
+	max_zone_pfns[ZONE_DMA32] = max_dma;
 #endif
 	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
 
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 9b2d994cddf6..ac46f0d60b66 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -38,7 +38,7 @@ struct early_node_data {
 	struct ia64_node_data *node_data;
 	unsigned long pernode_addr;
 	unsigned long pernode_size;
-#ifdef CONFIG_ZONE_DMA
+#ifdef CONFIG_ZONE_DMA32
 	unsigned long num_dma_physpages;
 #endif
 	unsigned long min_pfn;
@@ -669,7 +669,7 @@ static __init int count_node_pages(unsigned long start, unsigned long len, int n
 {
 	unsigned long end = start + len;
 
-#ifdef CONFIG_ZONE_DMA
+#ifdef CONFIG_ZONE_DMA32
 	if (start <= __pa(MAX_DMA_ADDRESS))
 		mem_data[node].num_dma_physpages +=
 			(min(end, __pa(MAX_DMA_ADDRESS)) - start) >>PAGE_SHIFT;
@@ -724,8 +724,8 @@ void __init paging_init(void)
 	}
 
 	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
-#ifdef CONFIG_ZONE_DMA
-	max_zone_pfns[ZONE_DMA] = max_dma;
+#ifdef CONFIG_ZONE_DMA32
+	max_zone_pfns[ZONE_DMA32] = max_dma;
 #endif
 	max_zone_pfns[ZONE_NORMAL] = max_pfn;
 	free_area_init_nodes(max_zone_pfns);
-- 
2.14.2

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From - Thu Nov 08 21:40:44 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 54/67] x86: remove sta2x11_dma_ops
Date: Fri, 29 Dec 2017 09:18:58 +0100
Lines: 114
Approved: news@gmane.org
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To: iommu@lists.linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2654266>

Both the swiotlb and the dma-direct code already call into phys_to_dma
to translate the DMA address.  So the sta2x11 into phys_to_dma and
dma_to_phys are enough to handle this "special" device, and we can use
the plain old swiotlb ops.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/x86/include/asm/device.h |  3 +++
 arch/x86/pci/sta2x11-fixup.c  | 46 +++++--------------------------------------
 2 files changed, 8 insertions(+), 41 deletions(-)

diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index 5e12c63b47aa..812bd6c5d602 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -6,6 +6,9 @@ struct dev_archdata {
 #if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU)
 	void *iommu; /* hook for IOMMU specific extension */
 #endif
+#ifdef CONFIG_STA2X11
+	bool is_sta2x11 : 1;
+#endif
 };
 
 #if defined(CONFIG_X86_DEV_DMA_OPS) && defined(CONFIG_PCI_DOMAINS)
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 15ad3025e439..7a5bafb76d77 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -159,43 +159,6 @@ static dma_addr_t a2p(dma_addr_t a, struct pci_dev *pdev)
 	return p;
 }
 
-/**
- * sta2x11_swiotlb_alloc_coherent - Allocate swiotlb bounce buffers
- *     returns virtual address. This is the only "special" function here.
- * @dev: PCI device
- * @size: Size of the buffer
- * @dma_handle: DMA address
- * @flags: memory flags
- */
-static void *sta2x11_swiotlb_alloc_coherent(struct device *dev,
-					    size_t size,
-					    dma_addr_t *dma_handle,
-					    gfp_t flags,
-					    unsigned long attrs)
-{
-	void *vaddr;
-
-	vaddr = swiotlb_alloc(dev, size, dma_handle, flags, attrs);
-	*dma_handle = p2a(*dma_handle, to_pci_dev(dev));
-	return vaddr;
-}
-
-/* We have our own dma_ops: the same as swiotlb but from alloc (above) */
-static const struct dma_map_ops sta2x11_dma_ops = {
-	.alloc = sta2x11_swiotlb_alloc_coherent,
-	.free = swiotlb_free,
-	.map_page = swiotlb_map_page,
-	.unmap_page = swiotlb_unmap_page,
-	.map_sg = swiotlb_map_sg_attrs,
-	.unmap_sg = swiotlb_unmap_sg_attrs,
-	.sync_single_for_cpu = swiotlb_sync_single_for_cpu,
-	.sync_single_for_device = swiotlb_sync_single_for_device,
-	.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
-	.sync_sg_for_device = swiotlb_sync_sg_for_device,
-	.mapping_error = swiotlb_dma_mapping_error,
-	.dma_supported = dma_direct_supported,
-};
-
 /* At setup time, we use our own ops if the device is a ConneXt one */
 static void sta2x11_setup_pdev(struct pci_dev *pdev)
 {
@@ -205,7 +168,8 @@ static void sta2x11_setup_pdev(struct pci_dev *pdev)
 		return;
 	pci_set_consistent_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
 	pci_set_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
-	pdev->dev.dma_ops = &sta2x11_dma_ops;
+	pdev->dev.dma_ops = &swiotlb_dma_ops;
+	pdev->dev.archdata.is_sta2x11 = true;
 
 	/* We must enable all devices as master, for audio DMA to work */
 	pci_set_master(pdev);
@@ -225,7 +189,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
 	struct sta2x11_mapping *map;
 
-	if (dev->dma_ops != &sta2x11_dma_ops) {
+	if (!dev->archdata.is_sta2x11) {
 		if (!dev->dma_mask)
 			return false;
 		return addr + size - 1 <= *dev->dma_mask;
@@ -249,7 +213,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
  */
 dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
-	if (dev->dma_ops != &sta2x11_dma_ops)
+	if (!dev->archdata.is_sta2x11)
 		return paddr;
 	return p2a(paddr, to_pci_dev(dev));
 }
@@ -261,7 +225,7 @@ dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
  */
 phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
 {
-	if (dev->dma_ops != &sta2x11_dma_ops)
+	if (!dev->archdata.is_sta2x11)
 		return daddr;
 	return a2p(daddr, to_pci_dev(dev));
 }
-- 
2.14.2



From - Thu Nov 08 21:40:44 2018
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Subject: [PATCH 51/67] set_memory.h: provide set_memory_{en,de}crypted stubs
Date: Fri, 29 Dec 2017 09:18:55 +0100
Lines: 34
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/56093>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 include/linux/set_memory.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/linux/set_memory.h b/include/linux/set_memory.h
index e5140648f638..da5178216da5 100644
--- a/include/linux/set_memory.h
+++ b/include/linux/set_memory.h
@@ -17,4 +17,16 @@ static inline int set_memory_x(unsigned long addr,  int numpages) { return 0; }
 static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; }
 #endif
 
+#ifndef CONFIG_ARCH_HAS_MEM_ENCRYPT
+static inline int set_memory_encrypted(unsigned long addr, int numpages)
+{
+	return 0;
+}
+
+static inline int set_memory_decrypted(unsigned long addr, int numpages)
+{
+	return 0;
+}
+#endif /* CONFIG_ARCH_HAS_MEM_ENCRYPT */
+
 #endif /* _LINUX_SET_MEMORY_H_ */
-- 
2.14.2

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From - Thu Nov 08 21:40:45 2018
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: [PATCH 49/67] swiotlb: refactor coherent buffer freeing
Date: Fri, 29 Dec 2017 09:18:53 +0100
Lines: 73
Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.kernel.cross-arch:40841 gmane.linux.kernel.iommu:21938 gmane.linux.ports.alpha:4605 gmane.linux.kernel.arc:3226 gmane.linux.ports.arm.kernel:622951 gmane.linux.ports.hexagon:1458 gmane.linux.ports.ia64:28448 gmane.linux.kernel.metag:1532 gmane.linux.ports.mips.general:62981 gmane.linux.ports.parisc:28123 gmane.linux.ports.ppc64.devel:151555 gmane.linux.ports.sh.devel:56094 gmane.linux.ports.sparc:27101 gmane.linux.kernel:2654268
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Factor out a new swiotlb_free_buffer helper that checks if an address
is allocated from the swiotlb bounce buffer, and if yes frees it.

This allows to simplify the swiotlb_free implemenation that uses
dma_direct_free to free the non-bounce buffer allocations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/swiotlb.c | 35 +++++++++++++++++++++--------------
 1 file changed, 21 insertions(+), 14 deletions(-)

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index a14fff30ee9d..adb4dd0091fa 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -773,22 +773,31 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 }
 EXPORT_SYMBOL(swiotlb_alloc_coherent);
 
+static bool swiotlb_free_buffer(struct device *dev, size_t size,
+		dma_addr_t dma_addr)
+{
+	phys_addr_t phys_addr = dma_to_phys(dev, dma_addr);
+
+	WARN_ON_ONCE(irqs_disabled());
+
+	if (!is_swiotlb_buffer(phys_addr))
+		return false;
+
+	/*
+	 * DMA_TO_DEVICE to avoid memcpy in swiotlb_tbl_unmap_single.
+	 * DMA_ATTR_SKIP_CPU_SYNC is optional.
+	 */
+	swiotlb_tbl_unmap_single(dev, phys_addr, size, DMA_TO_DEVICE,
+				 DMA_ATTR_SKIP_CPU_SYNC);
+	return true;
+}
+
 void
 swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
 		      dma_addr_t dev_addr)
 {
-	phys_addr_t paddr = dma_to_phys(hwdev, dev_addr);
-
-	WARN_ON(irqs_disabled());
-	if (!is_swiotlb_buffer(paddr))
+	if (!swiotlb_free_buffer(hwdev, size, dev_addr))
 		free_pages((unsigned long)vaddr, get_order(size));
-	else
-		/*
-		 * DMA_TO_DEVICE to avoid memcpy in swiotlb_tbl_unmap_single.
-		 * DMA_ATTR_SKIP_CPU_SYNC is optional.
-		 */
-		swiotlb_tbl_unmap_single(hwdev, paddr, size, DMA_TO_DEVICE,
-					 DMA_ATTR_SKIP_CPU_SYNC);
 }
 EXPORT_SYMBOL(swiotlb_free_coherent);
 
@@ -1103,9 +1112,7 @@ void *swiotlb_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 void swiotlb_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_addr, unsigned long attrs)
 {
-	if (is_swiotlb_buffer(dma_to_phys(dev, dma_addr)))
-		swiotlb_free_coherent(dev, size, vaddr, dma_addr);
-	else
+	if (!swiotlb_free_buffer(dev, size, dma_addr))
 		dma_direct_free(dev, size, vaddr, dma_addr, attrs);
 }
 
-- 
2.14.2



From - Thu Nov 08 21:40:45 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 48/67] swiotlb: rely on dev->coherent_dma_mask
Date: Fri, 29 Dec 2017 09:18:52 +0100
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To: iommu@lists.linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/27102>

These days the coherent DMA mask is always set, so don't work around the
lack of it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/swiotlb.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index e0b8980334c3..a14fff30ee9d 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -716,15 +716,11 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 	dma_addr_t dev_addr;
 	void *ret;
 	int order = get_order(size);
-	u64 dma_mask = DMA_BIT_MASK(32);
-
-	if (hwdev && hwdev->coherent_dma_mask)
-		dma_mask = hwdev->coherent_dma_mask;
 
 	ret = (void *)__get_free_pages(flags, order);
 	if (ret) {
 		dev_addr = swiotlb_virt_to_bus(hwdev, ret);
-		if (dev_addr + size - 1 > dma_mask) {
+		if (dev_addr + size - 1 > hwdev->coherent_dma_mask) {
 			/*
 			 * The allocated memory isn't reachable by the device.
 			 */
@@ -747,9 +743,9 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 		dev_addr = swiotlb_phys_to_dma(hwdev, paddr);
 
 		/* Confirm address can be DMA'd by device */
-		if (dev_addr + size - 1 > dma_mask) {
+		if (dev_addr + size - 1 > hwdev->coherent_dma_mask) {
 			printk("hwdev DMA mask = 0x%016Lx, dev_addr = 0x%016Lx\n",
-			       (unsigned long long)dma_mask,
+			       (unsigned long long)hwdev->coherent_dma_mask,
 			       (unsigned long long)dev_addr);
 
 			/*
-- 
2.14.2

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From - Thu Nov 08 21:40:45 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 34/67] cris: use dma-direct
Date: Fri, 29 Dec 2017 09:18:38 +0100
Lines: 171
Approved: news@gmane.org
Message-ID: <20171229081911.2802-35-hch@lst.de>
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Cc: linux-mips@linux-mips.org, linux-ia64@vger.kernel.org,
 linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
 Guan Xuetao <gxt@mprc.pku.edu.cn>, linux-arch@vger.kernel.org,
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To: iommu@lists.linux-foundation.org
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Xref: news.gmane.org gmane.linux.kernel.arc:3228 gmane.linux.kernel.iommu:21940 gmane.linux.ports.mips.general:62983 gmane.linux.ports.ia64:28450 gmane.linux.ports.sh.devel:56096 gmane.linux.ports.sparc:27103 gmane.linux.kernel.cross-arch:40843 gmane.linux.ports.hexagon:1460 gmane.linux.kernel.metag:1534 gmane.linux.ports.arm.kernel:622953 gmane.linux.ports.parisc:28125 gmane.linux.kernel:2654270 gmane.linux.ports.alpha:4607 gmane.linux.ports.ppc64.devel:151557
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3228>

cris currently has an incomplete direct mapping dma_map_ops implementation
is PCI support is enabled.  Replace it with the fully feature generic
dma-direct implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/cris/Kconfig                       |  4 ++
 arch/cris/arch-v32/drivers/pci/Makefile |  2 +-
 arch/cris/arch-v32/drivers/pci/dma.c    | 78 ---------------------------------
 arch/cris/include/asm/Kbuild            |  1 +
 arch/cris/include/asm/dma-mapping.h     | 20 ---------
 5 files changed, 6 insertions(+), 99 deletions(-)
 delete mode 100644 arch/cris/arch-v32/drivers/pci/dma.c
 delete mode 100644 arch/cris/include/asm/dma-mapping.h

diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 54d3f426763b..cd5a0865c97f 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -33,6 +33,9 @@ config GENERIC_CALIBRATE_DELAY
 config NO_IOPORT_MAP
 	def_bool y if !PCI
 
+config NO_DMA
+	def_bool y if !PCI
+
 config FORCE_MAX_ZONEORDER
 	int
 	default 6
@@ -72,6 +75,7 @@ config CRIS
 	select GENERIC_SCHED_CLOCK if ETRAX_ARCH_V32
 	select HAVE_DEBUG_BUGVERBOSE if ETRAX_ARCH_V32
 	select HAVE_NMI
+	select DMA_DIRECT_OPS if PCI
 
 config HZ
 	int
diff --git a/arch/cris/arch-v32/drivers/pci/Makefile b/arch/cris/arch-v32/drivers/pci/Makefile
index bff7482f2444..93c8be6170b1 100644
--- a/arch/cris/arch-v32/drivers/pci/Makefile
+++ b/arch/cris/arch-v32/drivers/pci/Makefile
@@ -2,4 +2,4 @@
 # Makefile for Etrax cardbus driver
 #
 
-obj-$(CONFIG_ETRAX_CARDBUS)        += bios.o dma.o
+obj-$(CONFIG_ETRAX_CARDBUS)        += bios.o
diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
deleted file mode 100644
index c7e3056885d3..000000000000
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ /dev/null
@@ -1,78 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Dynamic DMA mapping support.
- *
- * On cris there is no hardware dynamic DMA address translation,
- * so consistent alloc/free are merely page allocation/freeing.
- * The rest of the dynamic DMA mapping interface is implemented
- * in asm/pci.h.
- *
- * Borrowed from i386.
- */
-
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/pci.h>
-#include <linux/gfp.h>
-#include <asm/io.h>
-
-static void *v32_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
-{
-	void *ret;
-
-	if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff))
-		gfp |= GFP_DMA;
-
-	ret = (void *)__get_free_pages(gfp,  get_order(size));
-
-	if (ret != NULL) {
-		memset(ret, 0, size);
-		*dma_handle = virt_to_phys(ret);
-	}
-	return ret;
-}
-
-static void v32_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t dma_handle, unsigned long attrs)
-{
-	free_pages((unsigned long)vaddr, get_order(size));
-}
-
-static inline dma_addr_t v32_dma_map_page(struct device *dev,
-		struct page *page, unsigned long offset, size_t size,
-		enum dma_data_direction direction, unsigned long attrs)
-{
-	return page_to_phys(page) + offset;
-}
-
-static inline int v32_dma_map_sg(struct device *dev, struct scatterlist *sg,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	printk("Map sg\n");
-	return nents;
-}
-
-static inline int v32_dma_supported(struct device *dev, u64 mask)
-{
-        /*
-         * we fall back to GFP_DMA when the mask isn't all 1s,
-         * so we can't guarantee allocations that must be
-         * within a tighter range than GFP_DMA..
-         */
-        if (mask < 0x00ffffff)
-                return 0;
-	return 1;
-}
-
-const struct dma_map_ops v32_dma_ops = {
-	.alloc			= v32_dma_alloc,
-	.free			= v32_dma_free,
-	.map_page		= v32_dma_map_page,
-	.map_sg                 = v32_dma_map_sg,
-	.dma_supported		= v32_dma_supported,
-	.is_phys		= true,
-};
-EXPORT_SYMBOL(v32_dma_ops);
diff --git a/arch/cris/include/asm/Kbuild b/arch/cris/include/asm/Kbuild
index 460349cb147f..8cf45ac30c1b 100644
--- a/arch/cris/include/asm/Kbuild
+++ b/arch/cris/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += cmpxchg.h
 generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
deleted file mode 100644
index 1553bdb30a0c..000000000000
--- a/arch/cris/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_CRIS_DMA_MAPPING_H
-#define _ASM_CRIS_DMA_MAPPING_H
-
-#ifdef CONFIG_PCI
-extern const struct dma_map_ops v32_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &v32_dma_ops;
-}
-#else
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	BUG();
-	return NULL;
-}
-#endif
-
-#endif
-- 
2.14.2

From - Thu Nov 08 21:40:45 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel.iommu,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 45/67] swiotlb: rename swiotlb_free to swiotlb_exit
Date: Fri, 29 Dec 2017 09:18:49 +0100
Lines: 72
Approved: news@gmane.org
Message-ID: <20171229081911.2802-46-hch@lst.de>
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To: iommu@lists.linux-foundation.org
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Xref: news.gmane.org gmane.linux.ports.alpha:4608 gmane.linux.kernel.iommu:21941 gmane.linux.kernel.arc:3229 gmane.linux.ports.arm.kernel:622954 gmane.linux.ports.hexagon:1461 gmane.linux.ports.ia64:28451 gmane.linux.kernel.metag:1535 gmane.linux.ports.mips.general:62984 gmane.linux.ports.parisc:28126 gmane.linux.ports.ppc64.devel:151558 gmane.linux.ports.sh.devel:56097 gmane.linux.ports.sparc:27104 gmane.linux.kernel.cross-arch:40844 gmane.linux.kernel:2654271
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/4608>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/powerpc/kernel/dma-swiotlb.c | 2 +-
 arch/x86/kernel/pci-swiotlb.c     | 2 +-
 include/linux/swiotlb.h           | 4 ++--
 lib/swiotlb.c                     | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index 506ac4fafac5..88f3963ca30f 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -121,7 +121,7 @@ static int __init check_swiotlb_enabled(void)
 	if (ppc_swiotlb_enable)
 		swiotlb_print_info();
 	else
-		swiotlb_free();
+		swiotlb_exit();
 
 	return 0;
 }
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 7a11a3e4f697..57dea60c2473 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -119,7 +119,7 @@ void __init pci_swiotlb_late_init(void)
 {
 	/* An IOMMU turned us off. */
 	if (!swiotlb)
-		swiotlb_free();
+		swiotlb_exit();
 	else {
 		printk(KERN_INFO "PCI-DMA: "
 		       "Using software bounce buffering for IO (SWIOTLB)\n");
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 24ed817082ee..606375e35d87 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -115,10 +115,10 @@ extern int
 swiotlb_dma_supported(struct device *hwdev, u64 mask);
 
 #ifdef CONFIG_SWIOTLB
-extern void __init swiotlb_free(void);
+extern void __init swiotlb_exit(void);
 unsigned int swiotlb_max_segment(void);
 #else
-static inline void swiotlb_free(void) { }
+static inline void swiotlb_exit(void) { }
 static inline unsigned int swiotlb_max_segment(void) { return 0; }
 #endif
 
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 6583f3512386..c1fcd3a32d07 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -417,7 +417,7 @@ swiotlb_late_init_with_tbl(char *tlb, unsigned long nslabs)
 	return -ENOMEM;
 }
 
-void __init swiotlb_free(void)
+void __init swiotlb_exit(void)
 {
 	if (!io_tlb_orig_addr)
 		return;
-- 
2.14.2

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From - Thu Nov 08 21:40:45 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 40/67] iommu/intel-iommu: use dma_direct_* helpers for the
 direct mapping case
Date: Fri, 29 Dec 2017 09:18:44 +0100
Lines: 66
Approved: news@gmane.org
Message-ID: <20171229081911.2802-41-hch@lst.de>
References: <20171229081911.2802-1-hch@lst.de>
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 Guan Xuetao <gxt@mprc.pku.edu.cn>, linux-arch@vger.kernel.org,
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To: iommu@lists.linux-foundation.org
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Xref: news.gmane.org gmane.linux.kernel.arc:3230 gmane.linux.kernel.iommu:21942 gmane.linux.ports.mips.general:62985 gmane.linux.ports.ia64:28452 gmane.linux.ports.sh.devel:56098 gmane.linux.ports.sparc:27105 gmane.linux.kernel.cross-arch:40845 gmane.linux.ports.hexagon:1462 gmane.linux.kernel.metag:1536 gmane.linux.ports.arm.kernel:622955 gmane.linux.ports.parisc:28127 gmane.linux.kernel:2654272 gmane.linux.ports.alpha:4609 gmane.linux.ports.ppc64.devel:151559
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3230>

This simplifies the code a bit, and prepares for future cleanups.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/iommu/Kconfig       |  1 +
 drivers/iommu/intel-iommu.c | 17 ++++++++---------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index dc7c1914645d..df171cb85822 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -143,6 +143,7 @@ config DMAR_TABLE
 config INTEL_IOMMU
 	bool "Support for Intel IOMMU using DMA Remapping Devices"
 	depends on PCI_MSI && ACPI && (X86 || IA64_GENERIC)
+	select DMA_DIRECT_OPS
 	select IOMMU_API
 	select IOMMU_IOVA
 	select DMAR_TABLE
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 921caf4f0c3e..0de8bfe89061 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -31,6 +31,7 @@
 #include <linux/pci.h>
 #include <linux/dmar.h>
 #include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/mempool.h>
 #include <linux/memory.h>
 #include <linux/cpu.h>
@@ -3712,17 +3713,12 @@ static void *intel_alloc_coherent(struct device *dev, size_t size,
 	struct page *page = NULL;
 	int order;
 
+	if (iommu_no_mapping(dev))
+		return dma_direct_alloc(dev, size, dma_handle, flags, attrs);
+
 	size = PAGE_ALIGN(size);
 	order = get_order(size);
-
-	if (!iommu_no_mapping(dev))
-		flags &= ~(GFP_DMA | GFP_DMA32);
-	else if (dev->coherent_dma_mask < dma_get_required_mask(dev)) {
-		if (dev->coherent_dma_mask < DMA_BIT_MASK(32))
-			flags |= GFP_DMA;
-		else
-			flags |= GFP_DMA32;
-	}
+	flags &= ~(GFP_DMA | GFP_DMA32);
 
 	if (gfpflags_allow_blocking(flags)) {
 		unsigned int count = size >> PAGE_SHIFT;
@@ -3758,6 +3754,9 @@ static void intel_free_coherent(struct device *dev, size_t size, void *vaddr,
 	int order;
 	struct page *page = virt_to_page(vaddr);
 
+	if (iommu_no_mapping(dev))
+		return dma_direct_free(dev, size, vaddr, dma_handle, attrs);
+
 	size = PAGE_ALIGN(size);
 	order = get_order(size);
 
-- 
2.14.2

From - Thu Nov 08 21:40:45 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 41/67] x86: remove dma_alloc_coherent_gfp_flags
Date: Fri, 29 Dec 2017 09:18:45 +0100
Lines: 118
Approved: news@gmane.org
Message-ID: <20171229081911.2802-42-hch@lst.de>
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Cc: linux-mips@linux-mips.org, linux-ia64@vger.kernel.org,
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To: iommu@lists.linux-foundation.org
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Xref: news.gmane.org gmane.linux.ports.arm.kernel:622956 gmane.linux.kernel.iommu:21943 gmane.linux.ports.mips.general:62986 gmane.linux.ports.ia64:28453 gmane.linux.ports.sh.devel:56099 gmane.linux.ports.sparc:27106 gmane.linux.kernel.cross-arch:40846 gmane.linux.ports.hexagon:1463 gmane.linux.kernel.arc:3231 gmane.linux.kernel.metag:1537 gmane.linux.ports.parisc:28128 gmane.linux.kernel:2654274 gmane.linux.ports.alpha:4610 gmane.linux.ports.ppc64.devel:151560
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/622956>

All dma_ops implementations used on x86 now take care of setting their own
required GFP_ masks for the allocation.  And given that the common code
now clears harmful flags itself that means we can stop the flags in all
the iommu implementations as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/x86/include/asm/dma-mapping.h | 11 -----------
 arch/x86/kernel/amd_gart_64.c      |  1 -
 arch/x86/kernel/pci-calgary_64.c   |  2 --
 arch/x86/kernel/pci-dma.c          |  2 --
 arch/x86/mm/mem_encrypt.c          |  7 -------
 drivers/iommu/amd_iommu.c          |  1 -
 drivers/iommu/intel-iommu.c        |  1 -
 7 files changed, 25 deletions(-)

diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index df9816b385eb..89ce4bfd241f 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -36,15 +36,4 @@ int arch_dma_supported(struct device *dev, u64 mask);
 bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
 #define arch_dma_alloc_attrs arch_dma_alloc_attrs
 
-static inline gfp_t dma_alloc_coherent_gfp_flags(struct device *dev, gfp_t gfp)
-{
-	if (dev->coherent_dma_mask <= DMA_BIT_MASK(24))
-		gfp |= GFP_DMA;
-#ifdef CONFIG_X86_64
-	if (dev->coherent_dma_mask <= DMA_BIT_MASK(32) && !(gfp & GFP_DMA))
-		gfp |= GFP_DMA32;
-#endif
-       return gfp;
-}
-
 #endif
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index 92054815023e..7466dd458e0f 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -487,7 +487,6 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
 	if (!force_iommu || dev->coherent_dma_mask <= DMA_BIT_MASK(24))
 		return dma_direct_alloc(dev, size, dma_addr, flag, attrs);
 
-	flag &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
 	page = alloc_pages(flag | __GFP_ZERO, get_order(size));
 	if (!page)
 		return NULL;
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 5647853053bd..bbfc8b1e9104 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -446,8 +446,6 @@ static void* calgary_alloc_coherent(struct device *dev, size_t size,
 	npages = size >> PAGE_SHIFT;
 	order = get_order(size);
 
-	flag &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
-
 	/* alloc enough pages (and possibly more) */
 	ret = (void *)__get_free_pages(flag, order);
 	if (!ret)
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index db0b88ea8d1b..14437116ffea 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -82,8 +82,6 @@ bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp)
 	if (!*dev)
 		*dev = &x86_dma_fallback_dev;
 
-	*gfp = dma_alloc_coherent_gfp_flags(*dev, *gfp);
-
 	if (!is_device_dma_capable(*dev))
 		return false;
 	return true;
diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c
index 479586b8ca9b..1c786e751b49 100644
--- a/arch/x86/mm/mem_encrypt.c
+++ b/arch/x86/mm/mem_encrypt.c
@@ -208,13 +208,6 @@ static void *sev_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 	void *vaddr = NULL;
 
 	order = get_order(size);
-
-	/*
-	 * Memory will be memset to zero after marking decrypted, so don't
-	 * bother clearing it before.
-	 */
-	gfp &= ~__GFP_ZERO;
-
 	page = alloc_pages_node(dev_to_node(dev), gfp, order);
 	if (page) {
 		dma_addr_t addr;
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index a2ad149ab0bf..51ce6db86fdd 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2600,7 +2600,6 @@ static void *alloc_coherent(struct device *dev, size_t size,
 	dma_dom   = to_dma_ops_domain(domain);
 	size	  = PAGE_ALIGN(size);
 	dma_mask  = dev->coherent_dma_mask;
-	flag     &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
 	flag     |= __GFP_ZERO;
 
 	page = alloc_pages(flag | __GFP_NOWARN,  get_order(size));
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 0de8bfe89061..6c9df0773b78 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -3718,7 +3718,6 @@ static void *intel_alloc_coherent(struct device *dev, size_t size,
 
 	size = PAGE_ALIGN(size);
 	order = get_order(size);
-	flags &= ~(GFP_DMA | GFP_DMA32);
 
 	if (gfpflags_allow_blocking(flags)) {
 		unsigned int count = size >> PAGE_SHIFT;
-- 
2.14.2

From - Thu Nov 08 21:40:45 2018
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Subject: [PATCH 37/67] x86: use dma-direct
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The generic dma-direct implementation is now functionally equivalent to
the x86 nommu dma_map implementation, so switch over to using it.

Note that the various iommu drivers are switched from x86_dma_supported
to dma_direct_supported to provide identical functionality, although the
checks looks fairly questionable for at least some of them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/x86/Kconfig                   |  1 +
 arch/x86/include/asm/dma-mapping.h |  8 -----
 arch/x86/include/asm/iommu.h       |  3 --
 arch/x86/kernel/Makefile           |  2 +-
 arch/x86/kernel/amd_gart_64.c      |  7 ++--
 arch/x86/kernel/pci-calgary_64.c   |  3 +-
 arch/x86/kernel/pci-dma.c          | 66 +-------------------------------------
 arch/x86/kernel/pci-swiotlb.c      |  5 ++-
 arch/x86/pci/sta2x11-fixup.c       |  2 +-
 drivers/iommu/amd_iommu.c          |  7 ++--
 drivers/iommu/intel-iommu.c        |  3 +-
 11 files changed, 17 insertions(+), 90 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f6f4328103c0..55ad01515075 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -83,6 +83,7 @@ config X86
 	select CLOCKSOURCE_VALIDATE_LAST_CYCLE
 	select CLOCKSOURCE_WATCHDOG
 	select DCACHE_WORD_ACCESS
+	select DMA_DIRECT_OPS
 	select EDAC_ATOMIC_SCRUB
 	select EDAC_SUPPORT
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 545bf3721bc0..df9816b385eb 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -36,14 +36,6 @@ int arch_dma_supported(struct device *dev, u64 mask);
 bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
 #define arch_dma_alloc_attrs arch_dma_alloc_attrs
 
-extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-					dma_addr_t *dma_addr, gfp_t flag,
-					unsigned long attrs);
-
-extern void dma_generic_free_coherent(struct device *dev, size_t size,
-				      void *vaddr, dma_addr_t dma_addr,
-				      unsigned long attrs);
-
 static inline gfp_t dma_alloc_coherent_gfp_flags(struct device *dev, gfp_t gfp)
 {
 	if (dev->coherent_dma_mask <= DMA_BIT_MASK(24))
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index 1e5d5d92eb40..baedab8ac538 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -2,13 +2,10 @@
 #ifndef _ASM_X86_IOMMU_H
 #define _ASM_X86_IOMMU_H
 
-extern const struct dma_map_ops nommu_dma_ops;
 extern int force_iommu, no_iommu;
 extern int iommu_detected;
 extern int iommu_pass_through;
 
-int x86_dma_supported(struct device *dev, u64 mask);
-
 /* 10 seconds */
 #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
 
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 81bb565f4497..beee4332e69b 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -54,7 +54,7 @@ obj-$(CONFIG_X86_ESPFIX64)	+= espfix_64.o
 obj-$(CONFIG_SYSFS)	+= ksysfs.o
 obj-y			+= bootflag.o e820.o
 obj-y			+= pci-dma.o quirks.o topology.o kdebugfs.o
-obj-y			+= alternative.o i8253.o pci-nommu.o hw_breakpoint.o
+obj-y			+= alternative.o i8253.o hw_breakpoint.o
 obj-y			+= tsc.o tsc_msr.o io_delay.o rtc.o
 obj-y			+= pci-iommu_table.o
 obj-y			+= resource.o
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index ecd486cb06ab..52e3abcf3e70 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -501,8 +501,7 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
 		}
 		__free_pages(page, get_order(size));
 	} else
-		return dma_generic_alloc_coherent(dev, size, dma_addr, flag,
-						  attrs);
+		return dma_direct_alloc(dev, size, dma_addr, flag, attrs);
 
 	return NULL;
 }
@@ -513,7 +512,7 @@ gart_free_coherent(struct device *dev, size_t size, void *vaddr,
 		   dma_addr_t dma_addr, unsigned long attrs)
 {
 	gart_unmap_page(dev, dma_addr, size, DMA_BIDIRECTIONAL, 0);
-	dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs);
+	dma_direct_free(dev, size, vaddr, dma_addr, attrs);
 }
 
 static int gart_mapping_error(struct device *dev, dma_addr_t dma_addr)
@@ -705,7 +704,7 @@ static const struct dma_map_ops gart_dma_ops = {
 	.alloc				= gart_alloc_coherent,
 	.free				= gart_free_coherent,
 	.mapping_error			= gart_mapping_error,
-	.dma_supported			= x86_dma_supported,
+	.dma_supported			= dma_direct_supported,
 };
 
 static void gart_iommu_shutdown(void)
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 35c461f21815..5647853053bd 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -33,6 +33,7 @@
 #include <linux/string.h>
 #include <linux/crash_dump.h>
 #include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/bitmap.h>
 #include <linux/pci_ids.h>
 #include <linux/pci.h>
@@ -493,7 +494,7 @@ static const struct dma_map_ops calgary_dma_ops = {
 	.map_page = calgary_map_page,
 	.unmap_page = calgary_unmap_page,
 	.mapping_error = calgary_mapping_error,
-	.dma_supported = x86_dma_supported,
+	.dma_supported = dma_direct_supported,
 };
 
 static inline void __iomem * busno_to_bbar(unsigned char num)
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index b59820872ec7..db0b88ea8d1b 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -18,7 +18,7 @@
 
 static int forbid_dac __read_mostly;
 
-const struct dma_map_ops *dma_ops = &nommu_dma_ops;
+const struct dma_map_ops *dma_ops = &dma_direct_ops;
 EXPORT_SYMBOL(dma_ops);
 
 static int iommu_sac_force __read_mostly;
@@ -76,60 +76,6 @@ void __init pci_iommu_alloc(void)
 		}
 	}
 }
-void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-				 dma_addr_t *dma_addr, gfp_t flag,
-				 unsigned long attrs)
-{
-	struct page *page;
-	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
-	dma_addr_t addr;
-
-again:
-	page = NULL;
-	/* CMA can be used only in the context which permits sleeping */
-	if (gfpflags_allow_blocking(flag)) {
-		page = dma_alloc_from_contiguous(dev, count, get_order(size),
-						 flag);
-		if (page) {
-			addr = phys_to_dma(dev, page_to_phys(page));
-			if (addr + size > dev->coherent_dma_mask) {
-				dma_release_from_contiguous(dev, page, count);
-				page = NULL;
-			}
-		}
-	}
-	/* fallback */
-	if (!page)
-		page = alloc_pages_node(dev_to_node(dev), flag, get_order(size));
-	if (!page)
-		return NULL;
-
-	addr = phys_to_dma(dev, page_to_phys(page));
-	if (addr + size > dev->coherent_dma_mask) {
-		__free_pages(page, get_order(size));
-
-		if (dev->coherent_dma_mask < DMA_BIT_MASK(32) &&
-		    !(flag & GFP_DMA)) {
-			flag = (flag & ~GFP_DMA32) | GFP_DMA;
-			goto again;
-		}
-
-		return NULL;
-	}
-	memset(page_address(page), 0, size);
-	*dma_addr = addr;
-	return page_address(page);
-}
-
-void dma_generic_free_coherent(struct device *dev, size_t size, void *vaddr,
-			       dma_addr_t dma_addr, unsigned long attrs)
-{
-	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
-	struct page *page = virt_to_page(vaddr);
-
-	if (!dma_release_from_contiguous(dev, page, count))
-		free_pages((unsigned long)vaddr, get_order(size));
-}
 
 bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp)
 {
@@ -243,16 +189,6 @@ int arch_dma_supported(struct device *dev, u64 mask)
 }
 EXPORT_SYMBOL(arch_dma_supported);
 
-int x86_dma_supported(struct device *dev, u64 mask)
-{
-	/* Copied from i386. Doesn't make much sense, because it will
-	   only work for pci_alloc_coherent.
-	   The caller just has to use GFP_DMA in this case. */
-	if (mask < DMA_BIT_MASK(24))
-		return 0;
-	return 1;
-}
-
 static int __init pci_iommu_init(void)
 {
 	struct iommu_table_entry *p;
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 9d3e35c33d94..7a11a3e4f697 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -30,8 +30,7 @@ void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 	 */
 	flags |= __GFP_NOWARN;
 
-	vaddr = dma_generic_alloc_coherent(hwdev, size, dma_handle, flags,
-					   attrs);
+	vaddr = dma_direct_alloc(hwdev, size, dma_handle, flags, attrs);
 	if (vaddr)
 		return vaddr;
 
@@ -45,7 +44,7 @@ void x86_swiotlb_free_coherent(struct device *dev, size_t size,
 	if (is_swiotlb_buffer(dma_to_phys(dev, dma_addr)))
 		swiotlb_free_coherent(dev, size, vaddr, dma_addr);
 	else
-		dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs);
+		dma_direct_free(dev, size, vaddr, dma_addr, attrs);
 }
 
 static const struct dma_map_ops swiotlb_dma_ops = {
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 75577c1490c4..6c712fe11bdc 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -193,7 +193,7 @@ static const struct dma_map_ops sta2x11_dma_ops = {
 	.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
 	.sync_sg_for_device = swiotlb_sync_sg_for_device,
 	.mapping_error = swiotlb_dma_mapping_error,
-	.dma_supported = x86_dma_supported,
+	.dma_supported = dma_direct_supported,
 };
 
 /* At setup time, we use our own ops if the device is a ConneXt one */
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 7d5eb004091d..ea4734de5357 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -28,6 +28,7 @@
 #include <linux/debugfs.h>
 #include <linux/scatterlist.h>
 #include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/iommu-helper.h>
 #include <linux/iommu.h>
 #include <linux/delay.h>
@@ -2182,7 +2183,7 @@ static int amd_iommu_add_device(struct device *dev)
 				dev_name(dev));
 
 		iommu_ignore_device(dev);
-		dev->dma_ops = &nommu_dma_ops;
+		dev->dma_ops = &dma_direct_ops;
 		goto out;
 	}
 	init_iommu_group(dev);
@@ -2667,7 +2668,7 @@ static void free_coherent(struct device *dev, size_t size,
  */
 static int amd_iommu_dma_supported(struct device *dev, u64 mask)
 {
-	if (!x86_dma_supported(dev, mask))
+	if (!dma_direct_supported(dev, mask))
 		return 0;
 	return check_device(dev);
 }
@@ -2781,7 +2782,7 @@ int __init amd_iommu_init_dma_ops(void)
 	 * continue to be SWIOTLB.
 	 */
 	if (!swiotlb)
-		dma_ops = &nommu_dma_ops;
+		dma_ops = &dma_direct_ops;
 
 	if (amd_iommu_unmap_flush)
 		pr_info("AMD-Vi: IO/TLB flush on unmap enabled\n");
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 4a2de34895ec..921caf4f0c3e 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -45,6 +45,7 @@
 #include <linux/pci-ats.h>
 #include <linux/memblock.h>
 #include <linux/dma-contiguous.h>
+#include <linux/dma-direct.h>
 #include <linux/crash_dump.h>
 #include <asm/irq_remapping.h>
 #include <asm/cacheflush.h>
@@ -3872,7 +3873,7 @@ const struct dma_map_ops intel_dma_ops = {
 	.unmap_page = intel_unmap_page,
 	.mapping_error = intel_mapping_error,
 #ifdef CONFIG_X86
-	.dma_supported = x86_dma_supported,
+	.dma_supported = dma_direct_supported,
 #endif
 };
 
-- 
2.14.2

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From - Thu Nov 08 21:40:45 2018
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
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From: Julian Calaby <julian.calaby@gmail.com>
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Subject: Re: [PATCH 17/67] microblaze: rename dma_direct to dma_microblaze
Date: Fri, 29 Dec 2017 21:11:56 +1100
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To: Christoph Hellwig <hch@lst.de>
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Hi Christoph,

On Fri, Dec 29, 2017 at 7:18 PM, Christoph Hellwig <hch@lst.de> wrote:
> This frees the dma_direct_* namespace for a generic implementation.

Don't you mean "dma_nommu" not "dma_microblaze" in the subject line?

Thanks,

-- 
Julian Calaby

Email: julian.calaby@gmail.com
Profile: http://www.google.com/profiles/julian.calaby/

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From: Vladimir Murzin <vladimir.murzin@arm.com>
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Subject: Re: consolidate direct dma mapping and swiotlb support
Date: Fri, 29 Dec 2017 10:52:14 +0000
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To: Christoph Hellwig <hch@lst.de>, iommu@lists.linux-foundation.org
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On 29/12/17 08:18, Christoph Hellwig wrote:
> Almost every architecture supports a direct dma mapping implementation,
> where no iommu is used and the device dma address is a 1:1 mapping to
> the physical address or has a simple linear offset.  Currently the
> code for this implementation is most duplicated over the architectures,
> and the duplicated again in the swiotlb code, and then duplicated again
> for special cases like the x86 memory encryption DMA ops.
> 
> This series takes the existing very simple dma-noop dma mapping
> implementation, enhances it with all the x86 features and quirks, and
> creates a common set of architecture hooks for it and the swiotlb code.
> 
> It then switches a large number of architectures to this generic
> direct map implement and the new generic swiotlb dma_map ops.
> 
> Note that for now this only handles architectures that do cache coherent
> DMA, but a similar consolidation for non-coherent architectures is in the
> work for later merge windows.

Is it available in your dma-mapping.git or somewhere else?

Cheers
Vladimir

> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
> 


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From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 27/67] dma-direct: add dma address sanity checks
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To: Christoph Hellwig <hch@lst.de>
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Hi Christoph,

On Fri, Dec 29, 2017 at 9:18 AM, Christoph Hellwig <hch@lst.de> wrote:
> Roughly based on the x86 pci-nommu implementation.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Thanks for your patch!

> --- a/lib/dma-direct.c
> +++ b/lib/dma-direct.c
> @@ -9,6 +9,24 @@
>  #include <linux/scatterlist.h>
>  #include <linux/pfn.h>
>
> +#define DIRECT_MAPPING_ERROR           0
> +
> +static bool
> +check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
> +               const char *caller)
> +{
> +       if (unlikely(dev && !dma_capable(dev, dma_addr, size))) {
> +               if (*dev->dma_mask >= DMA_BIT_MASK(32)) {
> +                       dev_err(dev,
> +                               "%s: overflow %llx+%zu of device mask %llx\n",

Please use "%pad" to format dma_addr_t ...

> +                               caller, (long long)dma_addr, size,

... and use &dma_addr.

> +                               (long long)*dev->dma_mask);

This cast is not needed, as u64 is unsigned long long in kernelspace on
all architectures.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
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Newsgroups: gmane.linux.ports.parisc,gmane.comp.video.dri.devel,gmane.linux.kernel,gmane.linux.kernel.janitors
Subject: Re: [PATCH] video/fbdev/stifb: Delete an error message for a failed
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On Friday, November 24, 2017 10:30:34 PM Rolf Eike Beer wrote:
> Markus Elfring wrote:
> > From: Markus Elfring <elfring@users.sourceforge.net>
> > Date: Fri, 24 Nov 2017 22:22:06 +0100
> > 
> > Omit an extra message for a memory allocation failure in this function.
> > 
> > This issue was detected by using the Coccinelle software.
> > 
> > Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
> > ---
> >  drivers/video/fbdev/stifb.c | 4 +---
> >  1 file changed, 1 insertion(+), 3 deletions(-)
> > 
> > diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
> > index 6ded5c198998..fe217a2f7d21 100644
> > --- a/drivers/video/fbdev/stifb.c
> > +++ b/drivers/video/fbdev/stifb.c
> > @@ -1126,10 +1126,8 @@ static int __init stifb_init_fb(struct sti_struct
> > *sti, int bpp_pref) int bpp, xres, yres;
> > 
> >  	fb = kzalloc(sizeof(*fb), GFP_ATOMIC);
> > -	if (!fb) {
> > -		printk(KERN_ERR "stifb: Could not allocate stifb structure\n");
> > +	if (!fb)
> >  		return -ENODEV;
> > -	}
> > 
> >  	info = &fb->info;
> 
> This should be -ENOMEM.

Markus, please fix this issue first (before doing cleanups).

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

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________________________________
From: Loretta Robles
Sent: Friday, December 29, 2017 1:01 PM
To: Loretta Robles
Subject: ATTENTION!!!

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On Fri, Dec 29, 2017 at 10:52:14AM +0000, Vladimir Murzin wrote:
> Is it available in your dma-mapping.git or somewhere else?

  git://git.infradead.org/users/hch/misc.git dma-direct

Gitweb:

  http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/dma-direct


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Hallo, ich Roy Cockrum, 58, aus Knoxville, Tennessee Vereinigte Staaten von Amerika, du hast eine Wohltätigkeitsspende von € 3.400.000,00 EUR, ich gewann die America Lotterie in Amerika im Wert von $ 259,9 Millionen, und ich gebe einen Teil davon Zu fünf glücklichen Leuten und Wohltätigkeitshäusern in Gelübde, um die Armut vor dieser Welt zu beseitigen, ich kämpfe gegen die Armut. Kontaktieren Sie mich für weitere Details: roycockrumpovertyfoundation@gmail.com
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Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org> writes:

> We want to use the dma_direct_ namespace for a generic implementation,
> so rename powerpc to the second best choice: dma_nommu_.

I'm not a fan of "nommu". Some of the users of direct ops *are* using an
IOMMU, they're just setting up a 1:1 mapping once at init time, rather
than mapping dynamically.

Though I don't have a good idea for a better name, maybe "1to1",
"linear", "premapped" ?

cheers

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On Tue, Jan 2, 2018 at 10:45 AM, Michael Ellerman <mpe@ellerman.id.au> wrote:
> Christoph Hellwig <hch@lst.de> writes:
>
>> We want to use the dma_direct_ namespace for a generic implementation,
>> so rename powerpc to the second best choice: dma_nommu_.
>
> I'm not a fan of "nommu". Some of the users of direct ops *are* using an
> IOMMU, they're just setting up a 1:1 mapping once at init time, rather
> than mapping dynamically.
>
> Though I don't have a good idea for a better name, maybe "1to1",
> "linear", "premapped" ?

"identity"?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
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Subject: Re: [PATCH 29/67] dma-direct: use node local allocations for coherent memory
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To: Christoph Hellwig <hch@lst.de>
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Missing patch description explaining why this change is desirable.

On Fri, Dec 29, 2017 at 9:18 AM, Christoph Hellwig <hch@lst.de> wrote:
> --- a/lib/dma-direct.c
> +++ b/lib/dma-direct.c
> @@ -39,7 +39,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
>         if (gfpflags_allow_blocking(gfp))
>                 page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
>         if (!page)
> -               page = alloc_pages(gfp, page_order);
> +               page = alloc_pages_node(dev_to_node(dev), gfp, page_order);
>         if (!page)
>                 return NULL;
>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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To: Christoph Hellwig <hch@lst.de>
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Hi Christoph,

On Fri, Dec 29, 2017 at 9:18 AM, Christoph Hellwig <hch@lst.de> wrote:
> CONFIG_ALPHA_JENSEN has failed to compile since commit aca05038
> ("alpha/dma: use common noop dma ops"), so mark it as broken.

unknown revision or path not in the working tree.
Ah, you dropped the leading "6":
6aca0503847f6329460b15b3ab2b0e30bb752793
is less than 2 years old, though.

>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  arch/alpha/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
> index b31b974a03cb..e96adcbcab41 100644
> --- a/arch/alpha/Kconfig
> +++ b/arch/alpha/Kconfig
> @@ -209,6 +209,7 @@ config ALPHA_EIGER
>
>  config ALPHA_JENSEN
>         bool "Jensen"
> +       depends on BROKEN
>         help
>           DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
>           of the first-generation Alpha systems. A number of these systems

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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To: Christoph Hellwig <hch@lst.de>
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On Fri, Dec 29, 2017 at 9:18 AM, Christoph Hellwig <hch@lst.de> wrote:
> Life the code from x86 so that we behave consistently.  In the future we
> should probably warn if any of these is set.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>

For m68k:
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Subject: Re: [PATCH 05/67] dma-mapping: replace PCI_DMA_BUS_IS_PHYS with a
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To: Christoph Hellwig <hch@lst.de>
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On Fri, Dec 29, 2017 at 9:18 AM, Christoph Hellwig <hch@lst.de> wrote:
> The current PCI_DMA_BUS_IS_PHYS decided if a dma implementation is bound
> by the dma mask in the device because it directly maps to a physical
> address range (modulo an offset in the device), or if it is virtualized
> by an iommu and can map any address (that includes virtual iommus like
> swiotlb).  The problem with this scheme is that it is per-architecture and
> not per dma_ops instance, and we are growing more and more setups that
> have multiple different dma operations in use on a single system, for
> which this scheme can't provide a correct answer.  Depending on the
> architecture that means we either get a false positive or false negative
> at the moment.
>
> This patch instead extents the is_phys flag in struct dma_map_ops that
> is currently only used by a few architectures to be used tree wide.
>
> Note that this means that we now need a struct device parent in the
> Scsi_Host or netdevice.  Every modern driver has these, but there might
> still be a few outdated legacy drivers out there, which now won't make
> an intelligent decision.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>

For m68k:
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Subject: Re: [PATCH 25/67] dma-direct: rename dma_noop to dma_direct
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To: Christoph Hellwig <hch@lst.de>, iommu@lists.linux-foundation.org
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On 29/12/17 08:18, Christoph Hellwig wrote:
> The trivial direct mapping implementation already does a virtual to
> physical translation which isn't strictly a noop, and will soon learn
> to do non-direct but linear physical to dma translations through the
> device offset and a few small tricks.  Rename it to a better fitting
> name.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  MAINTAINERS                        |  2 +-
>  arch/arm/Kconfig                   |  2 +-
>  arch/arm/include/asm/dma-mapping.h |  2 +-
>  arch/arm/mm/dma-mapping-nommu.c    |  8 ++++----
>  arch/m32r/Kconfig                  |  2 +-
>  arch/riscv/Kconfig                 |  2 +-
>  arch/s390/Kconfig                  |  2 +-
>  include/asm-generic/dma-mapping.h  |  2 +-
>  include/linux/dma-mapping.h        |  2 +-
>  lib/Kconfig                        |  2 +-
>  lib/Makefile                       |  2 +-
>  lib/{dma-noop.c => dma-direct.c}   | 35 +++++++++++++++--------------------
>  12 files changed, 29 insertions(+), 34 deletions(-)
>  rename lib/{dma-noop.c => dma-direct.c} (53%)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index a8b35d9f41b2..b4005fe06e4c 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -4336,7 +4336,7 @@ T:	git git://git.infradead.org/users/hch/dma-mapping.git
>  W:	http://git.infradead.org/users/hch/dma-mapping.git
>  S:	Supported
>  F:	lib/dma-debug.c
> -F:	lib/dma-noop.c
> +F:	lib/dma-direct.c
>  F:	lib/dma-virt.c
>  F:	drivers/base/dma-mapping.c
>  F:	drivers/base/dma-coherent.c
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 00d889a37965..430a0aa710d6 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -25,7 +25,7 @@ config ARM
>  	select CLONE_BACKWARDS
>  	select CPU_PM if (SUSPEND || CPU_IDLE)
>  	select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
> -	select DMA_NOOP_OPS if !MMU
> +	select DMA_DIRECT_OPS if !MMU
>  	select EDAC_SUPPORT
>  	select EDAC_ATOMIC_SCRUB
>  	select GENERIC_ALLOCATOR
> diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
> index e5d9020c9ee1..8436f6ade57d 100644
> --- a/arch/arm/include/asm/dma-mapping.h
> +++ b/arch/arm/include/asm/dma-mapping.h
> @@ -18,7 +18,7 @@ extern const struct dma_map_ops arm_coherent_dma_ops;
>  
>  static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
>  {
> -	return IS_ENABLED(CONFIG_MMU) ? &arm_dma_ops : &dma_noop_ops;
> +	return IS_ENABLED(CONFIG_MMU) ? &arm_dma_ops : &dma_direct_ops;
>  }
>  
>  #ifdef __arch_page_to_dma
> diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
> index 1cced700e45a..49e9831dc0f1 100644
> --- a/arch/arm/mm/dma-mapping-nommu.c
> +++ b/arch/arm/mm/dma-mapping-nommu.c
> @@ -22,7 +22,7 @@
>  #include "dma.h"
>  
>  /*
> - *  dma_noop_ops is used if
> + *  dma_direct_ops is used if
>   *   - MMU/MPU is off
>   *   - cpu is v7m w/o cache support
>   *   - device is coherent
> @@ -39,7 +39,7 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
>  				 unsigned long attrs)
>  
>  {
> -	const struct dma_map_ops *ops = &dma_noop_ops;
> +	const struct dma_map_ops *ops = &dma_direct_ops;
>  	void *ret;
>  
>  	/*
> @@ -70,7 +70,7 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
>  			       void *cpu_addr, dma_addr_t dma_addr,
>  			       unsigned long attrs)
>  {
> -	const struct dma_map_ops *ops = &dma_noop_ops;
> +	const struct dma_map_ops *ops = &dma_direct_ops;
>  
>  	if (attrs & DMA_ATTR_NON_CONSISTENT) {
>  		ops->free(dev, size, cpu_addr, dma_addr, attrs);
> @@ -214,7 +214,7 @@ EXPORT_SYMBOL(arm_nommu_dma_ops);
>  
>  static const struct dma_map_ops *arm_nommu_get_dma_map_ops(bool coherent)
>  {
> -	return coherent ? &dma_noop_ops : &arm_nommu_dma_ops;
> +	return coherent ? &dma_direct_ops : &arm_nommu_dma_ops;
>  }
>  
>  void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
> diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
> index 498398d915c1..dd84ee194579 100644
> --- a/arch/m32r/Kconfig
> +++ b/arch/m32r/Kconfig
> @@ -19,7 +19,7 @@ config M32R
>  	select MODULES_USE_ELF_RELA
>  	select HAVE_DEBUG_STACKOVERFLOW
>  	select CPU_NO_EFFICIENT_FFS
> -	select DMA_NOOP_OPS
> +	select DMA_DIRECT_OPS
>  	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
>  
>  config SBUS
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index 2c6adf12713a..865e14f50c14 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -83,7 +83,7 @@ config PGTABLE_LEVELS
>  config HAVE_KPROBES
>  	def_bool n
>  
> -config DMA_NOOP_OPS
> +config DMA_DIRECT_OPS
>  	def_bool y
>  
>  menu "Platform type"
> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> index 829c67986db7..9376637229c9 100644
> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -140,7 +140,7 @@ config S390
>  	select HAVE_DEBUG_KMEMLEAK
>  	select HAVE_DMA_API_DEBUG
>  	select HAVE_DMA_CONTIGUOUS
> -	select DMA_NOOP_OPS
> +	select DMA_DIRECT_OPS
>  	select HAVE_DYNAMIC_FTRACE
>  	select HAVE_DYNAMIC_FTRACE_WITH_REGS
>  	select HAVE_EFFICIENT_UNALIGNED_ACCESS
> diff --git a/include/asm-generic/dma-mapping.h b/include/asm-generic/dma-mapping.h
> index 164031531d85..880a292d792f 100644
> --- a/include/asm-generic/dma-mapping.h
> +++ b/include/asm-generic/dma-mapping.h
> @@ -4,7 +4,7 @@
>  
>  static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
>  {
> -	return &dma_noop_ops;
> +	return &dma_direct_ops;
>  }
>  
>  #endif /* _ASM_GENERIC_DMA_MAPPING_H */
> diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
> index 72568bf4fc12..ff3528de5322 100644
> --- a/include/linux/dma-mapping.h
> +++ b/include/linux/dma-mapping.h
> @@ -143,7 +143,7 @@ struct dma_map_ops {
>  	bool is_phys;
>  };
>  
> -extern const struct dma_map_ops dma_noop_ops;
> +extern const struct dma_map_ops dma_direct_ops;
>  extern const struct dma_map_ops dma_virt_ops;
>  
>  #define DMA_BIT_MASK(n)	(((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
> diff --git a/lib/Kconfig b/lib/Kconfig
> index c5e84fbcb30b..9d3d649c9dc9 100644
> --- a/lib/Kconfig
> +++ b/lib/Kconfig
> @@ -409,7 +409,7 @@ config HAS_DMA
>  	depends on !NO_DMA
>  	default y
>  
> -config DMA_NOOP_OPS
> +config DMA_DIRECT_OPS
>  	bool
>  	depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
>  	default n
> diff --git a/lib/Makefile b/lib/Makefile
> index d11c48ec8ffd..749851abe85a 100644
> --- a/lib/Makefile
> +++ b/lib/Makefile
> @@ -28,7 +28,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
>  
>  lib-$(CONFIG_MMU) += ioremap.o
>  lib-$(CONFIG_SMP) += cpumask.o
> -lib-$(CONFIG_DMA_NOOP_OPS) += dma-noop.o
> +lib-$(CONFIG_DMA_DIRECT_OPS) += dma-direct.o
>  lib-$(CONFIG_DMA_VIRT_OPS) += dma-virt.o
>  
>  lib-y	+= kobject.o klist.o
> diff --git a/lib/dma-noop.c b/lib/dma-direct.c
> similarity index 53%
> rename from lib/dma-noop.c
> rename to lib/dma-direct.c
> index c3728a0551f5..439db40854b7 100644
> --- a/lib/dma-noop.c
> +++ b/lib/dma-direct.c
> @@ -10,9 +10,8 @@
>  #include <linux/scatterlist.h>
>  #include <linux/pfn.h>
>  
> -static void *dma_noop_alloc(struct device *dev, size_t size,
> -			    dma_addr_t *dma_handle, gfp_t gfp,
> -			    unsigned long attrs)
> +static void *dma_direct_alloc(struct device *dev, size_t size,
> +		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
>  {
>  	void *ret;
>  
> @@ -23,24 +22,21 @@ static void *dma_noop_alloc(struct device *dev, size_t size,
>  	return ret;
>  }
>  
> -static void dma_noop_free(struct device *dev, size_t size,
> -			  void *cpu_addr, dma_addr_t dma_addr,
> -			  unsigned long attrs)
> +static void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
> +		dma_addr_t dma_addr, unsigned long attrs)
>  {
>  	free_pages((unsigned long)cpu_addr, get_order(size));
>  }
>  
> -static dma_addr_t dma_noop_map_page(struct device *dev, struct page *page,
> -				      unsigned long offset, size_t size,
> -				      enum dma_data_direction dir,
> -				      unsigned long attrs)
> +static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
> +		unsigned long offset, size_t size, enum dma_data_direction dir,
> +		unsigned long attrs)
>  {
>  	return page_to_phys(page) + offset - PFN_PHYS(dev->dma_pfn_offset);
>  }
>  
> -static int dma_noop_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
> -			     enum dma_data_direction dir,
> -			     unsigned long attrs)
> +static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
> +		int nents, enum dma_data_direction dir, unsigned long attrs)
>  {
>  	int i;
>  	struct scatterlist *sg;
> @@ -58,12 +54,11 @@ static int dma_noop_map_sg(struct device *dev, struct scatterlist *sgl, int nent
>  	return nents;
>  }
>  
> -const struct dma_map_ops dma_noop_ops = {
> -	.alloc			= dma_noop_alloc,
> -	.free			= dma_noop_free,
> -	.map_page		= dma_noop_map_page,
> -	.map_sg			= dma_noop_map_sg,
> +const struct dma_map_ops dma_direct_ops = {
> +	.alloc			= dma_direct_alloc,
> +	.free			= dma_direct_free,
> +	.map_page		= dma_direct_map_page,
> +	.map_sg			= dma_direct_map_sg,
>  	.is_phys		= true,
>  };
> -
> -EXPORT_SYMBOL(dma_noop_ops);
> +EXPORT_SYMBOL(dma_direct_ops);
> 

>From ARM NOMMU perspective

Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>

Thanks
Vladimir

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From - Thu Nov 08 21:40:47 2018
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Subject: Re: [PATCH 26/67] dma-direct: use phys_to_dma
Date: Tue, 2 Jan 2018 16:26:27 +0000
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To: Christoph Hellwig <hch@lst.de>, iommu@lists.linux-foundation.org
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On 29/12/17 08:18, Christoph Hellwig wrote:
> This means it uses whatever linear remapping scheme that the architecture
> provides is used in the generic dma_direct ops.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  lib/dma-direct.c | 18 +++++++-----------
>  1 file changed, 7 insertions(+), 11 deletions(-)
> 
> diff --git a/lib/dma-direct.c b/lib/dma-direct.c
> index 439db40854b7..0e087650e86b 100644
> --- a/lib/dma-direct.c
> +++ b/lib/dma-direct.c
> @@ -1,12 +1,11 @@
>  // SPDX-License-Identifier: GPL-2.0
>  /*
> - *	lib/dma-noop.c
> - *
> - * DMA operations that map to physical addresses without flushing memory.
> + * DMA operations that map physical memory directly without using an IOMMU or
> + * flushing caches.
>   */
>  #include <linux/export.h>
>  #include <linux/mm.h>
> -#include <linux/dma-mapping.h>
> +#include <linux/dma-direct.h>
>  #include <linux/scatterlist.h>
>  #include <linux/pfn.h>
>  
> @@ -17,7 +16,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
>  
>  	ret = (void *)__get_free_pages(gfp, get_order(size));
>  	if (ret)
> -		*dma_handle = virt_to_phys(ret) - PFN_PHYS(dev->dma_pfn_offset);
> +		*dma_handle = phys_to_dma(dev, virt_to_phys(ret));
>  
>  	return ret;
>  }
> @@ -32,7 +31,7 @@ static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
>  		unsigned long offset, size_t size, enum dma_data_direction dir,
>  		unsigned long attrs)
>  {
> -	return page_to_phys(page) + offset - PFN_PHYS(dev->dma_pfn_offset);
> +	return phys_to_dma(dev, page_to_phys(page)) + offset;
>  }
>  
>  static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
> @@ -42,12 +41,9 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
>  	struct scatterlist *sg;
>  
>  	for_each_sg(sgl, sg, nents, i) {
> -		dma_addr_t offset = PFN_PHYS(dev->dma_pfn_offset);
> -		void *va;
> -
>  		BUG_ON(!sg_page(sg));
> -		va = sg_virt(sg);
> -		sg_dma_address(sg) = (dma_addr_t)virt_to_phys(va) - offset;
> +
> +		sg_dma_address(sg) = phys_to_dma(dev, sg_phys(sg));
>  		sg_dma_len(sg) = sg->length;
>  	}
>  
> 

>From ARM NOMMU perspective

Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>

Thanks
Vladimir


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Subject: Re: [PATCH 30/67] dma-direct: retry allocations using GFP_DMA for
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On 29/12/17 08:18, Christoph Hellwig wrote:
> If we got back an allocation that wasn't inside the support coherent mask,
> retry the allocation using GFP_DMA.
> 
> Based on the x86 code.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  lib/dma-direct.c | 25 ++++++++++++++++++++++++-
>  1 file changed, 24 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/dma-direct.c b/lib/dma-direct.c
> index ab81de3ac1d3..f8467cb3d89a 100644
> --- a/lib/dma-direct.c
> +++ b/lib/dma-direct.c
> @@ -28,6 +28,11 @@ check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
>  	return true;
>  }
>  
> +static bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size)
> +{
> +	return phys_to_dma(dev, phys) + size <= dev->coherent_dma_mask;

Shouldn't it be: phys_to_dma(dev, phys) + size - 1 <= dev->coherent_dma_mask ?

> +}
> +
>  static void *dma_direct_alloc(struct device *dev, size_t size,
>  		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
>  {
> @@ -35,11 +40,29 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
>  	int page_order = get_order(size);
>  	struct page *page = NULL;
>  
> +again:
>  	/* CMA can be used only in the context which permits sleeping */
> -	if (gfpflags_allow_blocking(gfp))
> +	if (gfpflags_allow_blocking(gfp)) {
>  		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
> +		if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {
> +			dma_release_from_contiguous(dev, page, count);
> +			page = NULL;
> +		}
> +	}
>  	if (!page)
>  		page = alloc_pages_node(dev_to_node(dev), gfp, page_order);
> +
> +	if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {
> +		__free_pages(page, page_order);
> +		page = NULL;
> +
> +		if (dev->coherent_dma_mask < DMA_BIT_MASK(32) &&
> +		    !(gfp & GFP_DMA)) {
> +			gfp = (gfp & ~GFP_DMA32) | GFP_DMA;
> +			goto again;

Shouldn't we limit number of attempts?

Thanks
Vladimir


From - Thu Nov 08 21:40:47 2018
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Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 31/67] dma-direct: make dma_direct_{alloc, free} available
 to other implementations
Date: Tue, 2 Jan 2018 16:44:21 +0000
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On 29/12/17 08:18, Christoph Hellwig wrote:
> So that they don't need to indirect through the operation vector.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  arch/arm/mm/dma-mapping-nommu.c | 9 +++------
>  include/linux/dma-direct.h      | 5 +++++
>  lib/dma-direct.c                | 6 +++---
>  3 files changed, 11 insertions(+), 9 deletions(-)
> 
> diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
> index 49e9831dc0f1..b4cf3e4e9d4a 100644
> --- a/arch/arm/mm/dma-mapping-nommu.c
> +++ b/arch/arm/mm/dma-mapping-nommu.c
> @@ -11,7 +11,7 @@
>  
>  #include <linux/export.h>
>  #include <linux/mm.h>
> -#include <linux/dma-mapping.h>
> +#include <linux/dma-direct.h>
>  #include <linux/scatterlist.h>
>  
>  #include <asm/cachetype.h>
> @@ -39,7 +39,6 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
>  				 unsigned long attrs)
>  
>  {
> -	const struct dma_map_ops *ops = &dma_direct_ops;
>  	void *ret;
>  
>  	/*
> @@ -48,7 +47,7 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
>  	 */
>  
>  	if (attrs & DMA_ATTR_NON_CONSISTENT)
> -		return ops->alloc(dev, size, dma_handle, gfp, attrs);
> +		return dma_direct_alloc(dev, size, dma_handle, gfp, attrs);
>  
>  	ret = dma_alloc_from_global_coherent(size, dma_handle);
>  
> @@ -70,10 +69,8 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
>  			       void *cpu_addr, dma_addr_t dma_addr,
>  			       unsigned long attrs)
>  {
> -	const struct dma_map_ops *ops = &dma_direct_ops;
> -
>  	if (attrs & DMA_ATTR_NON_CONSISTENT) {
> -		ops->free(dev, size, cpu_addr, dma_addr, attrs);
> +		dma_direct_free(dev, size, cpu_addr, dma_addr, attrs);
>  	} else {
>  		int ret = dma_release_from_global_coherent(get_order(size),
>  							   cpu_addr);
> diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
> index 10e924b7cba7..4788bf0bf683 100644
> --- a/include/linux/dma-direct.h
> +++ b/include/linux/dma-direct.h
> @@ -38,4 +38,9 @@ static inline void dma_mark_clean(void *addr, size_t size)
>  }
>  #endif /* CONFIG_ARCH_HAS_DMA_MARK_CLEAN */
>  
> +void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
> +		gfp_t gfp, unsigned long attrs);
> +void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
> +		dma_addr_t dma_addr, unsigned long attrs);
> +
>  #endif /* _LINUX_DMA_DIRECT_H */
> diff --git a/lib/dma-direct.c b/lib/dma-direct.c
> index f8467cb3d89a..7e913728e099 100644
> --- a/lib/dma-direct.c
> +++ b/lib/dma-direct.c
> @@ -33,8 +33,8 @@ static bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size)
>  	return phys_to_dma(dev, phys) + size <= dev->coherent_dma_mask;
>  }
>  
> -static void *dma_direct_alloc(struct device *dev, size_t size,
> -		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
> +void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
> +		gfp_t gfp, unsigned long attrs)
>  {
>  	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
>  	int page_order = get_order(size);
> @@ -71,7 +71,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
>  	return page_address(page);
>  }
>  
> -static void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
> +void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
>  		dma_addr_t dma_addr, unsigned long attrs)
>  {
>  	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
> 

Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>

Thanks
Vladimir

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Subject: [PATCH] parisc: Fix alignment of pa_tlb_lock in assembly on 32-bit
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Qemu for PARISC reported on a 32bit SMP parisc kernel strange failures
with "Not-handled unaligned insn 0x0e8011d6 and 0x0c2011c9."

Those opcodes evaluate to the ldcw() assembly instruction which requires
(on 32bit) an alignment of 16 bytes to ensure atomicity.

As it turns out, qemu is correct and in our assembly code in entry.S and
pacache.S we don't pay attention to the required alignment.

This patch fixes the problem by aligning the lock offset in assembly
code in the same manner as we do in our C-code.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org>

diff --git a/arch/parisc/include/asm/ldcw.h b/arch/parisc/include/asm/ldcw.h
index dd5a08aaa4da..3eb4bfc1fb36 100644
--- a/arch/parisc/include/asm/ldcw.h
+++ b/arch/parisc/include/asm/ldcw.h
@@ -12,6 +12,7 @@
    for the semaphore.  */
 
 #define __PA_LDCW_ALIGNMENT	16
+#define __PA_LDCW_ALIGN_ORDER	4
 #define __ldcw_align(a) ({					\
 	unsigned long __ret = (unsigned long) &(a)->lock[0];	\
 	__ret = (__ret + __PA_LDCW_ALIGNMENT - 1)		\
@@ -29,6 +30,7 @@
    ldcd). */
 
 #define __PA_LDCW_ALIGNMENT	4
+#define __PA_LDCW_ALIGN_ORDER	2
 #define __ldcw_align(a) (&(a)->slock)
 #define __LDCW	"ldcw,co"
 
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index f3cecf5117cf..e95207c0565e 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -35,6 +35,7 @@
 #include <asm/pgtable.h>
 #include <asm/signal.h>
 #include <asm/unistd.h>
+#include <asm/ldcw.h>
 #include <asm/thread_info.h>
 
 #include <linux/linkage.h>
@@ -46,6 +47,14 @@
 #endif
 
 	.import		pa_tlb_lock,data
+	.macro  load_pa_tlb_lock reg
+#if __PA_LDCW_ALIGNMENT > 4
+	load32	PA(pa_tlb_lock) + __PA_LDCW_ALIGNMENT-1, \reg
+	depi	0,31,__PA_LDCW_ALIGN_ORDER, \reg
+#else
+	load32	PA(pa_tlb_lock), \reg
+#endif
+	.endm
 
 	/* space_to_prot macro creates a prot id from a space id */
 
@@ -457,7 +466,7 @@
 	.macro		tlb_lock	spc,ptp,pte,tmp,tmp1,fault
 #ifdef CONFIG_SMP
 	cmpib,COND(=),n	0,\spc,2f
-	load32		PA(pa_tlb_lock),\tmp
+	load_pa_tlb_lock \tmp
 1:	LDCW		0(\tmp),\tmp1
 	cmpib,COND(=)	0,\tmp1,1b
 	nop
@@ -480,7 +489,7 @@
 	/* Release pa_tlb_lock lock. */
 	.macro		tlb_unlock1	spc,tmp
 #ifdef CONFIG_SMP
-	load32		PA(pa_tlb_lock),\tmp
+	load_pa_tlb_lock \tmp
 	tlb_unlock0	\spc,\tmp
 #endif
 	.endm
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index adf7187f8951..949624f926ad 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -36,6 +36,7 @@
 #include <asm/assembly.h>
 #include <asm/pgtable.h>
 #include <asm/cache.h>
+#include <asm/ldcw.h>
 #include <linux/linkage.h>
 
 	.text
@@ -333,8 +334,12 @@ ENDPROC_CFI(flush_data_cache_local)
 
 	.macro	tlb_lock	la,flags,tmp
 #ifdef CONFIG_SMP
-	ldil		L%pa_tlb_lock,%r1
-	ldo		R%pa_tlb_lock(%r1),\la
+#if __PA_LDCW_ALIGNMENT > 4
+	load32		pa_tlb_lock + __PA_LDCW_ALIGNMENT-1, \la
+	depi		0,31,__PA_LDCW_ALIGN_ORDER, \la
+#else
+	load32		pa_tlb_lock, \la
+#endif
 	rsm		PSW_SM_I,\flags
 1:	LDCW		0(\la),\tmp
 	cmpib,<>,n	0,\tmp,3f
--
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Xref: news.gmane.org gmane.linux.ports.parisc:28148
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Fixes: ad67b74d2469d9b8 ("printk: hash addresses printed with %p")
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index d8f77358e2ba..29b99b8964aa 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -870,7 +870,7 @@ static void print_parisc_device(struct parisc_device *dev)
 	static int count;
 
 	print_pa_hwpath(dev, hw_path);
-	printk(KERN_INFO "%d. %s at 0x%p [%s] { %d, 0x%x, 0x%.3x, 0x%.5x }",
+	printk(KERN_INFO "%d. %s at 0x%px [%s] { %d, 0x%x, 0x%.3x, 0x%.5x }",
 		++count, dev->name, (void*) dev->hpa.start, hw_path, dev->id.hw_type,
 		dev->id.hversion_rev, dev->id.hversion, dev->id.sversion);
 
--
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From - Thu Nov 08 21:40:47 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Show initial kernel memory layout unhashed
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Fixes: ad67b74d2469d9b8 ("printk: hash addresses printed with %p")
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 13f7854e0d49..48f41399fc0b 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -631,11 +631,11 @@ void __init mem_init(void)
 	mem_init_print_info(NULL);
 #ifdef CONFIG_DEBUG_KERNEL /* double-sanity-check paranoia */
 	printk("virtual kernel memory layout:\n"
-	       "    vmalloc : 0x%p - 0x%p   (%4ld MB)\n"
-	       "    memory  : 0x%p - 0x%p   (%4ld MB)\n"
-	       "      .init : 0x%p - 0x%p   (%4ld kB)\n"
-	       "      .data : 0x%p - 0x%p   (%4ld kB)\n"
-	       "      .text : 0x%p - 0x%p   (%4ld kB)\n",
+	       "    vmalloc : 0x%px - 0x%px   (%4ld MB)\n"
+	       "    memory  : 0x%px - 0x%px   (%4ld MB)\n"
+	       "      .init : 0x%px - 0x%px   (%4ld kB)\n"
+	       "      .data : 0x%px - 0x%px   (%4ld kB)\n"
+	       "      .text : 0x%px - 0x%px   (%4ld kB)\n",
 
 	       (void*)VMALLOC_START, (void*)VMALLOC_END,
 	       (VMALLOC_END - VMALLOC_START) >> 20,
--
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From - Thu Nov 08 21:40:47 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Show unhashed HPA of Dino chip
Date: Tue, 2 Jan 2018 20:45:42 +0100
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Fixes: ad67b74d2469d9b8 ("printk: hash addresses printed with %p")
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 0b3fb99d9b89..7390fb8ca9d1 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -303,7 +303,7 @@ static void dino_mask_irq(struct irq_data *d)
 	struct dino_device *dino_dev = irq_data_get_irq_chip_data(d);
 	int local_irq = gsc_find_local_irq(d->irq, dino_dev->global_irq, DINO_LOCAL_IRQS);
 
-	DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, d->irq);
+	DBG(KERN_WARNING "%s(0x%px, %d)\n", __func__, dino_dev, d->irq);
 
 	/* Clear the matching bit in the IMR register */
 	dino_dev->imr &= ~(DINO_MASK_IRQ(local_irq));
@@ -316,7 +316,7 @@ static void dino_unmask_irq(struct irq_data *d)
 	int local_irq = gsc_find_local_irq(d->irq, dino_dev->global_irq, DINO_LOCAL_IRQS);
 	u32 tmp;
 
-	DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, d->irq);
+	DBG(KERN_WARNING "%s(0x%px, %d)\n", __func__, dino_dev, d->irq);
 
 	/*
 	** clear pending IRQ bits
@@ -396,7 +396,7 @@ static irqreturn_t dino_isr(int irq, void *intr_dev)
 	if (mask) {
 		if (--ilr_loop > 0)
 			goto ilr_again;
-		printk(KERN_ERR "Dino 0x%p: stuck interrupt %d\n", 
+		printk(KERN_ERR "Dino 0x%px: stuck interrupt %d\n",
 		       dino_dev->hba.base_addr, mask);
 		return IRQ_NONE;
 	}
@@ -553,7 +553,7 @@ dino_fixup_bus(struct pci_bus *bus)
         struct pci_dev *dev;
         struct dino_device *dino_dev = DINO_DEV(parisc_walk_tree(bus->bridge));
 
-	DBG(KERN_WARNING "%s(0x%p) bus %d platform_data 0x%p\n",
+	DBG(KERN_WARNING "%s(0x%px) bus %d platform_data 0x%px\n",
 	    __func__, bus, bus->busn_res.start,
 	    bus->bridge->platform_data);
 
@@ -854,7 +854,7 @@ static int __init dino_common_init(struct parisc_device *dev,
 	res->flags = IORESOURCE_IO; /* do not mark it busy ! */
 	if (request_resource(&ioport_resource, res) < 0) {
 		printk(KERN_ERR "%s: request I/O Port region failed "
-		       "0x%lx/%lx (hpa 0x%p)\n",
+		       "0x%lx/%lx (hpa 0x%px)\n",
 		       name, (unsigned long)res->start, (unsigned long)res->end,
 		       dino_dev->hba.base_addr);
 		return 1;
--
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From - Thu Nov 08 21:40:47 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Show unhashed EISA EEPROM address
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Fixes: ad67b74d2469d9b8 ("printk: hash addresses printed with %p")
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/eisa_eeprom.c b/drivers/parisc/eisa_eeprom.c
index 4dd9b1308128..99a80da6fd2e 100644
--- a/drivers/parisc/eisa_eeprom.c
+++ b/drivers/parisc/eisa_eeprom.c
@@ -106,7 +106,7 @@ static int __init eisa_eeprom_init(void)
 		return retval;
 	}
 
-	printk(KERN_INFO "EISA EEPROM at 0x%p\n", eisa_eeprom_addr);
+	printk(KERN_INFO "EISA EEPROM at 0x%px\n", eisa_eeprom_addr);
 	return 0;
 }
 
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From - Thu Nov 08 21:40:47 2018
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Subject: Re: [PATCH 16/67] powerpc: rename dma_direct_ to dma_nommu_
Date: Wed, 03 Jan 2018 17:24:02 +1100
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Geert Uytterhoeven <geert@linux-m68k.org> writes:

> On Tue, Jan 2, 2018 at 10:45 AM, Michael Ellerman <mpe@ellerman.id.au> wrote:
>> Christoph Hellwig <hch@lst.de> writes:
>>
>>> We want to use the dma_direct_ namespace for a generic implementation,
>>> so rename powerpc to the second best choice: dma_nommu_.
>>
>> I'm not a fan of "nommu". Some of the users of direct ops *are* using an
>> IOMMU, they're just setting up a 1:1 mapping once at init time, rather
>> than mapping dynamically.
>>
>> Though I don't have a good idea for a better name, maybe "1to1",
>> "linear", "premapped" ?
>
> "identity"?

I think that would be wrong, but thanks for trying to help :)

The address on the device side is sometimes (often?) offset from the CPU
address. So eg. the device can DMA to RAM address 0x0 using address
0x800000000000000.

Identity would imply 0 == 0 etc.

I think "bijective" is the correct term, but that's probably a bit
esoteric.

cheers

From - Thu Nov 08 21:40:47 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 16/67] powerpc: rename dma_direct_ to dma_nommu_
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Hi Michael,

On Wed, Jan 3, 2018 at 7:24 AM, Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org> wrote:
> Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org> writes:
>
>> On Tue, Jan 2, 2018 at 10:45 AM, Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org> wrote:
>>> Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org> writes:
>>>
>>>> We want to use the dma_direct_ namespace for a generic implementation,
>>>> so rename powerpc to the second best choice: dma_nommu_.
>>>
>>> I'm not a fan of "nommu". Some of the users of direct ops *are* using an
>>> IOMMU, they're just setting up a 1:1 mapping once at init time, rather
>>> than mapping dynamically.
>>>
>>> Though I don't have a good idea for a better name, maybe "1to1",
>>> "linear", "premapped" ?
>>
>> "identity"?
>
> I think that would be wrong, but thanks for trying to help :)
>
> The address on the device side is sometimes (often?) offset from the CPU
> address. So eg. the device can DMA to RAM address 0x0 using address
> 0x800000000000000.
>
> Identity would imply 0 == 0 etc.
>
> I think "bijective" is the correct term, but that's probably a bit
> esoteric.

OK, didn't know about the offset.
Then "linear" is what we tend to use, right?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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Subject: Re: [PATCH 16/67] powerpc: rename dma_direct_ to dma_nommu_
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Hi All,

On Wed, Jan 3, 2018 at 6:49 PM, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> Hi Michael,
>
> On Wed, Jan 3, 2018 at 7:24 AM, Michael Ellerman <mpe@ellerman.id.au> wrote:
>> Geert Uytterhoeven <geert@linux-m68k.org> writes:
>>
>>> On Tue, Jan 2, 2018 at 10:45 AM, Michael Ellerman <mpe@ellerman.id.au> wrote:
>>>> Christoph Hellwig <hch@lst.de> writes:
>>>>
>>>>> We want to use the dma_direct_ namespace for a generic implementation,
>>>>> so rename powerpc to the second best choice: dma_nommu_.
>>>>
>>>> I'm not a fan of "nommu". Some of the users of direct ops *are* using an
>>>> IOMMU, they're just setting up a 1:1 mapping once at init time, rather
>>>> than mapping dynamically.
>>>>
>>>> Though I don't have a good idea for a better name, maybe "1to1",
>>>> "linear", "premapped" ?
>>>
>>> "identity"?
>>
>> I think that would be wrong, but thanks for trying to help :)
>>
>> The address on the device side is sometimes (often?) offset from the CPU
>> address. So eg. the device can DMA to RAM address 0x0 using address
>> 0x800000000000000.
>>
>> Identity would imply 0 == 0 etc.
>>
>> I think "bijective" is the correct term, but that's probably a bit
>> esoteric.
>
> OK, didn't know about the offset.
> Then "linear" is what we tend to use, right?

If this is indeed a linear mapping, can we just remove this and
replace it with the new "generic" mapping being introduced by this
patchset?

Thanks,

-- 
Julian Calaby

Email: julian.calaby@gmail.com
Profile: http://www.google.com/profiles/julian.calaby/

From - Thu Nov 08 21:40:47 2018
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Subject: Re: [PATCH 17/67] microblaze: rename dma_direct to dma_microblaze
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To: Julian Calaby <julian.calaby@gmail.com>
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On Fri, Dec 29, 2017 at 09:11:56PM +1100, Julian Calaby wrote:
> Hi Christoph,
> 
> On Fri, Dec 29, 2017 at 7:18 PM, Christoph Hellwig <hch@lst.de> wrote:
> > This frees the dma_direct_* namespace for a generic implementation.
> 
> Don't you mean "dma_nommu" not "dma_microblaze" in the subject line?

Yes, thanks.

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Subject: Re: [PATCH 16/67] powerpc: rename dma_direct_ to dma_nommu_
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On Wed, Jan 03, 2018 at 07:19:46PM +1100, Julian Calaby wrote:
> If this is indeed a linear mapping, can we just remove this and
> replace it with the new "generic" mapping being introduced by this
> patchset?

That is the long-term plan.  But as the powerpc one includes support
for non-coherent DMA it will have to wait for the next batch.

From - Thu Nov 08 21:40:48 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 16/67] powerpc: rename dma_direct_ to dma_nommu_
Date: Thu, 4 Jan 2018 09:49:30 +0100
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To: Michael Ellerman <mpe@ellerman.id.au>
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On Tue, Jan 02, 2018 at 08:45:30PM +1100, Michael Ellerman wrote:
> Christoph Hellwig <hch@lst.de> writes:
> 
> > We want to use the dma_direct_ namespace for a generic implementation,
> > so rename powerpc to the second best choice: dma_nommu_.
> 
> I'm not a fan of "nommu". Some of the users of direct ops *are* using an
> IOMMU, they're just setting up a 1:1 mapping once at init time, rather
> than mapping dynamically.
> 
> Though I don't have a good idea for a better name, maybe "1to1",
> "linear", "premapped" ?

It seems like a nice counter part to the dma_iommu_ops used just about
anywhere else in ppc.

But I'll happily take any maintainer bike shed decision for the next
series.  Remember that in a merge window or two it will hopefully
go away in favor of the new generic dma_direct ops.

From - Thu Nov 08 21:40:48 2018
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Subject: Re: [PATCH 27/67] dma-direct: add dma address sanity checks
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On Fri, Dec 29, 2017 at 03:12:25PM +0100, Geert Uytterhoeven wrote:
> > +check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
> > +               const char *caller)
> > +{
> > +       if (unlikely(dev && !dma_capable(dev, dma_addr, size))) {
> > +               if (*dev->dma_mask >= DMA_BIT_MASK(32)) {
> > +                       dev_err(dev,
> > +                               "%s: overflow %llx+%zu of device mask %llx\n",
> 
> Please use "%pad" to format dma_addr_t ...
> 
> > +                               caller, (long long)dma_addr, size,
> 
> ... and use &dma_addr.
> 
> > +                               (long long)*dev->dma_mask);
> 
> This cast is not needed, as u64 is unsigned long long in kernelspace on
> all architectures.

Thanks, fixed.

From - Thu Nov 08 21:40:48 2018
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Subject: Re: [PATCH 02/67] alpha: mark jensen as broken
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On Tue, Jan 02, 2018 at 11:36:00AM +0100, Geert Uytterhoeven wrote:
> Hi Christoph,
> 
> On Fri, Dec 29, 2017 at 9:18 AM, Christoph Hellwig <hch@lst.de> wrote:
> > CONFIG_ALPHA_JENSEN has failed to compile since commit aca05038
> > ("alpha/dma: use common noop dma ops"), so mark it as broken.
> 
> unknown revision or path not in the working tree.
> Ah, you dropped the leading "6":
> 6aca0503847f6329460b15b3ab2b0e30bb752793
> is less than 2 years old, though.

I'll fix the reference.

But 23 month of a whole sub-architecture not compiling should still be
enough to mark it broken.
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Subject: Re: [PATCH 30/67] dma-direct: retry allocations using GFP_DMA for
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	iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-alpha-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
To: Vladimir Murzin <vladimir.murzin-5wv7dgnIgG8@public.gmane.org>
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On Tue, Jan 02, 2018 at 04:43:15PM +0000, Vladimir Murzin wrote:
> On 29/12/17 08:18, Christoph Hellwig wrote:
> > If we got back an allocation that wasn't inside the support coherent mask,
> > retry the allocation using GFP_DMA.
> > 
> > Based on the x86 code.
> > 
> > Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
> > ---
> >  lib/dma-direct.c | 25 ++++++++++++++++++++++++-
> >  1 file changed, 24 insertions(+), 1 deletion(-)
> > 
> > diff --git a/lib/dma-direct.c b/lib/dma-direct.c
> > index ab81de3ac1d3..f8467cb3d89a 100644
> > --- a/lib/dma-direct.c
> > +++ b/lib/dma-direct.c
> > @@ -28,6 +28,11 @@ check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
> >  	return true;
> >  }
> >  
> > +static bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size)
> > +{
> > +	return phys_to_dma(dev, phys) + size <= dev->coherent_dma_mask;
> 
> Shouldn't it be: phys_to_dma(dev, phys) + size - 1 <= dev->coherent_dma_mask ?

Yes, I think it should.  The existing code was blindly copy and pasted
from x86.

> > +	if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {
> > +		__free_pages(page, page_order);
> > +		page = NULL;
> > +
> > +		if (dev->coherent_dma_mask < DMA_BIT_MASK(32) &&
> > +		    !(gfp & GFP_DMA)) {
> > +			gfp = (gfp & ~GFP_DMA32) | GFP_DMA;
> > +			goto again;
> 
> Shouldn't we limit number of attempts?

We only retty once anyway, due to the !GFP_DMA check first and then
ORing in GFP_DMA.

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Hallo mein lieber Freund,

Ich schreibe dir diese Post mit schweren Tr=E4nen In meinen Augen und gro=
=DFem Kummer in meinem Herzen, Mein Name ist Vera Hollin Kvan, und ich kont=
aktiere dich aus meinem Land Indien Ich m=F6chte dir das sagen, weil ich ke=
ine habe Eine andere M=F6glichkeit, als Ihnen zu sagen, wie ich ber=FChrt w=
ar, um Sie zu =F6ffnen, heiratete ich mit Herrn Hollin Kvan, der f=FCr neun=
 Jahre mit der tunesischen Botschaft in Madrid Spanien arbeitete, bevor er =
im Jahr 2005 starb. Wir waren elf Jahre ohne verheiratet Kind.

Er starb nach einer kurzen Krankheit, die nur f=FCnf Tage dauerte. Seit sei=
nem Tod entschied ich mich, nicht wieder zu heiraten. Als mein verstorbener=
 Mann noch am Leben war, hinterlegte er die Summe von $ 4.850.000,00USD (Vi=
er Millionen achthundertundf=FCnfzigtausend Dollar) in einer Bank hier in I=
ndien Neu-Delhi, der Hauptstadt Indiens, gegenw=E4rtig dieses Geld ist imme=
r noch in der Bank.

Er stellte dieses Geld f=FCr den Export von Gold aus dem Minenfactory in Ma=
drid Spanien zur Verf=FCgung. In letzter Zeit sagte mir mein Doktor, dass i=
ch wegen der Krebserkrankung f=FCr die Dauer von sieben Monaten nicht =FCbe=
rleben w=FCrde. Derjenige, der mich am meisten st=F6rt, ist meine Schlaganf=
all-Krankheit. Nachdem ich meinen Zustand gekannt habe, habe ich beschlosse=
n, dir dieses Geld auszuh=E4ndigen, um auf die weniger privilegierten Mensc=
hen aufzupassen, du wirst dieses Geld auf die Art und Weise benutzen, wie i=
ch es hier unterrichten werde.

Ich m=F6chte, dass Sie 30 Prozent des gesamten Geldes f=FCr Ihren pers=F6nl=
ichen Gebrauch aufwenden, w=E4hrend 70% des Geldes an wohlt=E4tige Zwecke g=
ehen, Menschen auf der Stra=DFe und dem Waisenhaus helfen. Ich bin als Wais=
e aufgewachsen und habe keinen K=F6rper als mein Familienmitglied, nur um z=
u beenden, dass das Haus Gottes auch erhalten wird. Mache dies, damit Gott =
meine S=FCnden vergibt und meine Seele akzeptiert, weil diese Krankheiten m=
ich so sehr leiden. Sobald ich Ihre Antwort erhalten habe, werde ich Ihnen =
den Kontakt der Bank hier in Delhi Indien geben und ich werde auch den Bank=
manager beauftragen, Ihnen einen Vollmachtenbrief auszustellen, der Ihnen d=
en gegenw=E4rtigen Beg=FCnstigten des Geldes in der Bank beweisen wird, wen=
n Sie versichern mir, dass Sie entsprechend handeln werden, wie ich hier an=
gegeben habe.

Ich hoffe auf Ihre Antwort.
Von Vera Hollin kVan
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From - Thu Nov 08 21:40:48 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 09/67] arc: remove CONFIG_ARC_PLAT_NEEDS_PHYS_TO_DMA
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On 12/29/2017 12:25 AM, Christoph Hellwig wrote:
> We always use the stub definitions, so remove the unused other code.
>
> Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>

Acked-by: Vineet Gupta <vgupta-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>

FWIW, it was removed and reintroduced as one of the customers wanted it, which is 
not relevant now !

Thx,
-Vineet

> ---
>   arch/arc/Kconfig                   |  3 ---
>   arch/arc/include/asm/dma-mapping.h |  7 -------
>   arch/arc/mm/dma.c                  | 14 +++++++-------
>   3 files changed, 7 insertions(+), 17 deletions(-)
>
> diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
> index 9d5fd00d9e91..f3a80cf164cc 100644
> --- a/arch/arc/Kconfig
> +++ b/arch/arc/Kconfig
> @@ -463,9 +463,6 @@ config ARCH_PHYS_ADDR_T_64BIT
>   config ARCH_DMA_ADDR_T_64BIT
>   	bool
>   
> -config ARC_PLAT_NEEDS_PHYS_TO_DMA
> -	bool
> -
>   config ARC_KVADDR_SIZE
>   	int "Kernel Virtual Address Space size (MB)"
>   	range 0 512
> diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
> index 94285031c4fb..7a16824bfe98 100644
> --- a/arch/arc/include/asm/dma-mapping.h
> +++ b/arch/arc/include/asm/dma-mapping.h
> @@ -11,13 +11,6 @@
>   #ifndef ASM_ARC_DMA_MAPPING_H
>   #define ASM_ARC_DMA_MAPPING_H
>   
> -#ifndef CONFIG_ARC_PLAT_NEEDS_PHYS_TO_DMA
> -#define plat_dma_to_phys(dev, dma_handle) ((phys_addr_t)(dma_handle))
> -#define plat_phys_to_dma(dev, paddr) ((dma_addr_t)(paddr))
> -#else
> -#include <plat/dma.h>
> -#endif
> -
>   extern const struct dma_map_ops arc_dma_ops;
>   
>   static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
> diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
> index fad18261ef6a..1d405b86250c 100644
> --- a/arch/arc/mm/dma.c
> +++ b/arch/arc/mm/dma.c
> @@ -60,7 +60,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
>   	/* This is linear addr (0x8000_0000 based) */
>   	paddr = page_to_phys(page);
>   
> -	*dma_handle = plat_phys_to_dma(dev, paddr);
> +	*dma_handle = paddr;
>   
>   	/* This is kernel Virtual address (0x7000_0000 based) */
>   	if (need_kvaddr) {
> @@ -92,7 +92,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
>   static void arc_dma_free(struct device *dev, size_t size, void *vaddr,
>   		dma_addr_t dma_handle, unsigned long attrs)
>   {
> -	phys_addr_t paddr = plat_dma_to_phys(dev, dma_handle);
> +	phys_addr_t paddr = dma_handle;
>   	struct page *page = virt_to_page(paddr);
>   	int is_non_coh = 1;
>   
> @@ -111,7 +111,7 @@ static int arc_dma_mmap(struct device *dev, struct vm_area_struct *vma,
>   {
>   	unsigned long user_count = vma_pages(vma);
>   	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
> -	unsigned long pfn = __phys_to_pfn(plat_dma_to_phys(dev, dma_addr));
> +	unsigned long pfn = __phys_to_pfn(dma_addr);
>   	unsigned long off = vma->vm_pgoff;
>   	int ret = -ENXIO;
>   
> @@ -175,7 +175,7 @@ static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
>   	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
>   		_dma_cache_sync(paddr, size, dir);
>   
> -	return plat_phys_to_dma(dev, paddr);
> +	return paddr;
>   }
>   
>   /*
> @@ -190,7 +190,7 @@ static void arc_dma_unmap_page(struct device *dev, dma_addr_t handle,
>   			       size_t size, enum dma_data_direction dir,
>   			       unsigned long attrs)
>   {
> -	phys_addr_t paddr = plat_dma_to_phys(dev, handle);
> +	phys_addr_t paddr = handle;
>   
>   	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
>   		_dma_cache_sync(paddr, size, dir);
> @@ -224,13 +224,13 @@ static void arc_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
>   static void arc_dma_sync_single_for_cpu(struct device *dev,
>   		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
>   {
> -	_dma_cache_sync(plat_dma_to_phys(dev, dma_handle), size, DMA_FROM_DEVICE);
> +	_dma_cache_sync(dma_handle, size, DMA_FROM_DEVICE);
>   }
>   
>   static void arc_dma_sync_single_for_device(struct device *dev,
>   		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
>   {
> -	_dma_cache_sync(plat_dma_to_phys(dev, dma_handle), size, DMA_TO_DEVICE);
> +	_dma_cache_sync(dma_handle, size, DMA_TO_DEVICE);
>   }
>   
>   static void arc_dma_sync_sg_for_cpu(struct device *dev,


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: QEMU host idle sleep support
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Add QEMU host idle sleep support when running under QEMU with SeaBIOS
PDC Firmware.

Like ppc64 we use "or" assembler instructions (which translate to nops
on real hardware) to indicate that qemu shall idle sleep.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Richard Henderson <rth@twiddle.net>
CC: stable@vger.kernel.org # v4.9+

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 30f92391a93e..cad3e8661cd6 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -39,6 +39,7 @@
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/fs.h>
+#include <linux/cpu.h>
 #include <linux/module.h>
 #include <linux/personality.h>
 #include <linux/ptrace.h>
@@ -184,6 +185,44 @@ int dump_task_fpu (struct task_struct *tsk, elf_fpregset_t *r)
 }
 
 /*
+ * Idle thread support
+ *
+ * Detect when running on QEMU with SeaBIOS PDC Firmware and let
+ * QEMU idle the host too.
+ */
+
+int running_on_qemu __read_mostly;
+
+void __cpuidle arch_cpu_idle_dead(void)
+{
+	/* nop on real hardware, qemu will offline CPU. */
+	asm volatile("or %%r31,%%r31,%%r31\n":::);
+}
+
+void __cpuidle arch_cpu_idle(void)
+{
+	local_irq_enable();
+
+	/* nop on real hardware, qemu will idle sleep. */
+	asm volatile("or %%r10,%%r10,%%r10\n":::);
+}
+
+static int __init parisc_idle_init(void)
+{
+	const char *marker;
+
+	/* check QEMU/SeaBIOS marker in PAGE0 */
+	marker = (char *) &PAGE0->pad0;
+	running_on_qemu = (memcmp(marker, "SeaBIOS", 8) == 0);
+
+	if (!running_on_qemu)
+		cpu_idle_poll_ctrl(1);
+
+	return 0;
+}
+arch_initcall(parisc_idle_init);
+
+/*
  * Copy architecture-specific thread state
  */
 int
--
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Newsgroups: gmane.comp.video.dri.devel,gmane.linux.ports.parisc,gmane.linux.kernel.janitors,gmane.linux.kernel
Subject: [PATCH v2 2/2] video/fbdev/stifb: Delete an error message for a
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [GIT PULL] parisc architecture fixes for 4.15-rc7
Date: Sun, 7 Jan 2018 17:21:23 +0100
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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Hi Linus,

please pull a few fixes for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.15-3

The fixes are:
- Many small fixes to show the real physical addresses of devices instead of
  hashed addresses.

- One important fix to unbreak 32-bit SMP support: We forgot to 16-byte align
  the spinlocks in the assembler code.

- Qemu support: The host will get a chance to sleep when the parisc guest is
  idle. We use the same mechanism as the power architecture by overlaying the
  "or %r10,%r10,%r10" instruction which is simply a nop on real hardware.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (6):
      parisc: Show unhashed hardware inventory
      parisc: Show initial kernel memory layout unhashed
      parisc: Show unhashed HPA of Dino chip
      parisc: Show unhashed EISA EEPROM address
      parisc: Fix alignment of pa_tlb_lock in assembly on 32-bit SMP kernel
      parisc: qemu idle sleep support

 arch/parisc/include/asm/ldcw.h |  2 ++
 arch/parisc/kernel/drivers.c   |  2 +-
 arch/parisc/kernel/entry.S     | 13 +++++++++++--
 arch/parisc/kernel/pacache.S   |  9 +++++++--
 arch/parisc/kernel/process.c   | 39 +++++++++++++++++++++++++++++++++++++++
 arch/parisc/mm/init.c          | 10 +++++-----
 drivers/parisc/dino.c          | 10 +++++-----
 drivers/parisc/eisa_eeprom.c   |  2 +-
 8 files changed, 71 insertions(+), 16 deletions(-)
--
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From - Thu Nov 08 21:40:48 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Use fast cr16 clocksource with qemu
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When booted in qemu, the (emulated) cr16 clocksources are monotonic and
syncronized, so they can be used as stable clocksources.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 0e6ab6e4a4e9..2dbe5580a1a4 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -316,6 +316,8 @@ extern int _parisc_requires_coherency;
 #define parisc_requires_coherency()	(0)
 #endif
 
+extern int running_on_qemu;
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* __ASM_PARISC_PROCESSOR_H */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 4b8fd6dc22da..68e88e5c0898 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -248,7 +248,7 @@ static int __init init_cr16_clocksource(void)
 	 * different sockets, so mark them unstable and lower rating on
 	 * multi-socket SMP systems.
 	 */
-	if (num_online_cpus() > 1) {
+	if (num_online_cpus() > 1 && !running_on_qemu) {
 		int cpu;
 		unsigned long cpu0_loc;
 		cpu0_loc = per_cpu(cpu_data, 0).cpu_loc;
--
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On Fri, Dec 29, 2017 at 09:18:10AM +0100, Christoph Hellwig wrote:
> Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
> ---
>  arch/hexagon/include/asm/io.h | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/arch/hexagon/include/asm/io.h b/arch/hexagon/include/asm/io.h
> index 66f5e9a61efc..9e8621d94ee9 100644
> --- a/arch/hexagon/include/asm/io.h
> +++ b/arch/hexagon/include/asm/io.h
> @@ -330,8 +330,6 @@ static inline void outsl(unsigned long port, const void *buffer, int count)
>  	}
>  }
>  
> -#define flush_write_buffers() do { } while (0)
> -
>  #endif /* __KERNEL__ */
>  
>  #endif
> -- 
> 2.14.2
> 

For Hexagon:

Acked-by: Richard Kuo <rkuo-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>


-- 
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, 
a Linux Foundation Collaborative Project

From - Thu Nov 08 21:40:49 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 16/67] powerpc: rename dma_direct_ to dma_nommu_
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To: Michael Ellerman <mpe@ellerman.id.au>
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On Thu, Jan 04, 2018 at 09:49:30AM +0100, Christoph Hellwig wrote:
> On Tue, Jan 02, 2018 at 08:45:30PM +1100, Michael Ellerman wrote:
> > Christoph Hellwig <hch@lst.de> writes:
> > 
> > > We want to use the dma_direct_ namespace for a generic implementation,
> > > so rename powerpc to the second best choice: dma_nommu_.
> > 
> > I'm not a fan of "nommu". Some of the users of direct ops *are* using an
> > IOMMU, they're just setting up a 1:1 mapping once at init time, rather
> > than mapping dynamically.
> > 
> > Though I don't have a good idea for a better name, maybe "1to1",
> > "linear", "premapped" ?
> 
> It seems like a nice counter part to the dma_iommu_ops used just about
> anywhere else in ppc.
> 
> But I'll happily take any maintainer bike shed decision for the next
> series.  Remember that in a merge window or two it will hopefully
> go away in favor of the new generic dma_direct ops.

Michael, please suggest what name you want for the next iteration,
I don't want to hold up the series on a naming bikeshed.


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From: Jesper Nilsson <jesper.nilsson@axis.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 34/67] cris: use dma-direct
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On Fri, Dec 29, 2017 at 09:18:38AM +0100, Christoph Hellwig wrote:
> cris currently has an incomplete direct mapping dma_map_ops implementation
> is PCI support is enabled.  Replace it with the fully feature generic
> dma-direct implementation.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

For CRIS:

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

> ---
>  arch/cris/Kconfig                       |  4 ++
>  arch/cris/arch-v32/drivers/pci/Makefile |  2 +-
>  arch/cris/arch-v32/drivers/pci/dma.c    | 78 ---------------------------------
>  arch/cris/include/asm/Kbuild            |  1 +
>  arch/cris/include/asm/dma-mapping.h     | 20 ---------
>  5 files changed, 6 insertions(+), 99 deletions(-)
>  delete mode 100644 arch/cris/arch-v32/drivers/pci/dma.c
>  delete mode 100644 arch/cris/include/asm/dma-mapping.h
> 

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com

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Subject: Re: [PATCH 22/67] dma-mapping: clear harmful GFP_* flags in common
 code
Date: Tue, 9 Jan 2018 16:54:54 +0100
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To: Christoph Hellwig <hch@lst.de>
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On Fri, Dec 29, 2017 at 09:18:26AM +0100, Christoph Hellwig wrote:
> Life the code from x86 so that we behave consistently.  In the future we
> should probably warn if any of these is set.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

> ---
>  arch/cris/arch-v32/drivers/pci/dma.c      | 3 ---

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com

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Subject: Re: [PATCH 05/67] dma-mapping: replace PCI_DMA_BUS_IS_PHYS with a
 flag in struct dma_map_ops
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On Fri, Dec 29, 2017 at 09:18:09AM +0100, Christoph Hellwig wrote:
> The current PCI_DMA_BUS_IS_PHYS decided if a dma implementation is bound
> by the dma mask in the device because it directly maps to a physical
> address range (modulo an offset in the device), or if it is virtualized
> by an iommu and can map any address (that includes virtual iommus like
> swiotlb).  The problem with this scheme is that it is per-architecture and
> not per dma_ops instance, and we are growing more and more setups that
> have multiple different dma operations in use on a single system, for
> which this scheme can't provide a correct answer.  Depending on the
> architecture that means we either get a false positive or false negative
> at the moment.
> 
> This patch instead extents the is_phys flag in struct dma_map_ops that
> is currently only used by a few architectures to be used tree wide.
> 
> Note that this means that we now need a struct device parent in the
> Scsi_Host or netdevice.  Every modern driver has these, but there might
> still be a few outdated legacy drivers out there, which now won't make
> an intelligent decision.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

For the CRIS part:

Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

> ---
>  arch/cris/arch-v32/drivers/pci/dma.c  |  1 +
>  arch/cris/include/asm/pci.h           |  6 ------

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com

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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [GIT PULL] parisc architecture fixes for 4.15-rc7
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To: Helge Deller <deller@gmx.de>,
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On Sun, Jan 7, 2018 at 8:21 AM, Helge Deller <deller@gmx.de> wrote:
> Hi Linus,
>
> please pull a few fixes for the parisc architecture from:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.15-3
>
> The fixes are:
> - Many small fixes to show the real physical addresses of devices instead of
>   hashed addresses.
>
> - One important fix to unbreak 32-bit SMP support: We forgot to 16-byte align
>   the spinlocks in the assembler code.
>
> - Qemu support: The host will get a chance to sleep when the parisc guest is
>   idle. We use the same mechanism as the power architecture by overlaying the
>   "or %r10,%r10,%r10" instruction which is simply a nop on real hardware.
>
> Thanks,
> Helge
>
> ----------------------------------------------------------------
> Helge Deller (6):
>       parisc: Show unhashed hardware inventory
>       parisc: Show unhashed EISA EEPROM address

These looks like a physical addresses, yes.

>       parisc: Show initial kernel memory layout unhashed
>       parisc: Show unhashed HPA of Dino chip

But these are virtual addresses and should be just removed, not
switched to %px. They're not physical addresses that I can see, e.g.
"dino_dev" is clearly being used as an in-memory structure, and the
kernel layout literally says "virtual kernel memory layout".
Especially the kernel memory layout going to dmesg should be removed.
That kind of thing has been entirely removed from other architectures
(or will be soon[1]). See commit adb1fe9ae2ee ("mm/page_alloc: Remove
kernel address exposure in free_reserved_area()"). (Also note that
hiding behind CONFIG_DEBUG_KERNEL is not sufficient: most distros
build with that config.)

-Kees

[1] https://www.spinics.net/lists/arm-kernel/msg624390.html

>       parisc: Fix alignment of pa_tlb_lock in assembly on 32-bit SMP kernel
>       parisc: qemu idle sleep support
>
>  arch/parisc/include/asm/ldcw.h |  2 ++
>  arch/parisc/kernel/drivers.c   |  2 +-
>  arch/parisc/kernel/entry.S     | 13 +++++++++++--
>  arch/parisc/kernel/pacache.S   |  9 +++++++--
>  arch/parisc/kernel/process.c   | 39 +++++++++++++++++++++++++++++++++++++++
>  arch/parisc/mm/init.c          | 10 +++++-----
>  drivers/parisc/dino.c          | 10 +++++-----
>  drivers/parisc/eisa_eeprom.c   |  2 +-
>  8 files changed, 71 insertions(+), 16 deletions(-)



-- 
Kees Cook
Pixel Security


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Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: consolidate direct dma mapping V3
Date: Wed, 10 Jan 2018 08:59:54 +0100
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Cc: linux-mips@linux-mips.org, linux-ia64@vger.kernel.org,
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To: iommu@lists.linux-foundation.org
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Xref: news.gmane.org gmane.linux.kernel.arc:3284 gmane.linux.kernel.iommu:22020 gmane.linux.ports.mips.general:63186 gmane.linux.ports.ia64:28499 gmane.linux.ports.sh.devel:56231 gmane.linux.ports.sparc:27182 gmane.linux.kernel.cross-arch:41244 gmane.linux.ports.hexagon:1500 gmane.linux.kernel.metag:1576 gmane.linux.ports.arm.kernel:624999 gmane.linux.ports.parisc:28175 gmane.linux.kernel:2662706 gmane.linux.ports.alpha:4674 gmane.linux.ports.ppc64.devel:151823
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3284>

Almost every architecture supports a direct dma mapping implementation,
where no iommu is used and the device dma address is a 1:1 mapping to
the physical address or has a simple linear offset.  Currently the
code for this implementation is most duplicated over the architectures,
and the duplicated again in the swiotlb code, and then duplicated again
for special cases like the x86 memory encryption DMA ops.

This series takes the existing very simple dma-noop dma mapping
implementation, enhances it with all the x86 features and quirks, and
creates a common set of architecture hooks for it and the swiotlb code.

It then switches a number of architectures to this generic
direct map implemention.

Note that for now this only handles architectures that do cache coherent
DMA, but a similar consolidation for non-coherent architectures is in the
work for later merge windows.

A git tree is also available:

   git://git.infradead.org/users/hch/misc.git dma-direct.3

Gitweb:

   http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/dma-direct.3

Changes since V1:
 - fixed a few patch description typos
 - fixed a few printk formats
 - fixed an off by one in dma_coherent_ok
 - add a few Reviewed-by/Acked-by tags.
 - moved the swiotlb consolidation to a new series
 - dropped a few patches for now to not overwhelem the x86
   maintainers.  They will be resubmitted in the next merge window

From - Thu Nov 08 21:40:49 2018
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Subject: [PATCH 01/33] alpha: mark jensen as broken
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CONFIG_ALPHA_JENSEN has failed to compile since commit 6aca0503
("alpha/dma: use common noop dma ops"), so mark it as broken.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/alpha/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index b31b974a03cb..e96adcbcab41 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -209,6 +209,7 @@ config ALPHA_EIGER
 
 config ALPHA_JENSEN
 	bool "Jensen"
+	depends on BROKEN
 	help
 	  DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
 	  of the first-generation Alpha systems. A number of these systems
-- 
2.14.2


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Subject: [PATCH 02/33] hexagon: remove unused flush_write_buffers definition
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Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/hexagon/include/asm/io.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/hexagon/include/asm/io.h b/arch/hexagon/include/asm/io.h
index 66f5e9a61efc..9e8621d94ee9 100644
--- a/arch/hexagon/include/asm/io.h
+++ b/arch/hexagon/include/asm/io.h
@@ -330,8 +330,6 @@ static inline void outsl(unsigned long port, const void *buffer, int count)
 	}
 }
 
-#define flush_write_buffers() do { } while (0)
-
 #endif /* __KERNEL__ */
 
 #endif
-- 
2.14.2


From - Thu Nov 08 21:40:49 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 04/33] powerpc: remove unused flush_write_buffers definition
Date: Wed, 10 Jan 2018 08:59:58 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22023>

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/powerpc/include/asm/dma-mapping.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 5a6cbe11db6f..592c7f418aa0 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -107,9 +107,6 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
 		dev->archdata.dma_offset = off;
 }
 
-/* this will be removed soon */
-#define flush_write_buffers()
-
 #define HAVE_ARCH_DMA_SET_MASK 1
 extern int dma_set_mask(struct device *dev, u64 dma_mask);
 
-- 
2.14.2


From - Thu Nov 08 21:40:49 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 06/33] m32r: remove the unused dma_capable helper
Date: Wed, 10 Jan 2018 09:00:00 +0100
Lines: 29
Approved: news@gmane.org
Message-ID: <20180110080027.13879-7-hch@lst.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/27186>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/m32r/include/asm/dma-mapping.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 336ffe60814b..8967fb659691 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -14,11 +14,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &dma_noop_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #endif /* _ASM_M32R_DMA_MAPPING_H */
-- 
2.14.2

--
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From - Thu Nov 08 21:40:49 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 03/33] m32r: remove unused flush_write_buffers definition
Date: Wed, 10 Jan 2018 08:59:57 +0100
Lines: 21
Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.kernel.iommu:22025 gmane.linux.ports.mips.general:63191 gmane.linux.ports.ia64:28504 gmane.linux.ports.sh.devel:56236 gmane.linux.ports.sparc:27187 gmane.linux.kernel.cross-arch:41249 gmane.linux.ports.hexagon:1505 gmane.linux.kernel.arc:3289 gmane.linux.kernel.metag:1581 gmane.linux.ports.arm.kernel:625004 gmane.linux.ports.parisc:28180 gmane.linux.kernel:2662711 gmane.linux.ports.alpha:4679 gmane.linux.ports.ppc64.devel:151828
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22025>

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/m32r/include/asm/io.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h
index 1b653bb16f9a..a4272d8f0d9c 100644
--- a/arch/m32r/include/asm/io.h
+++ b/arch/m32r/include/asm/io.h
@@ -191,8 +191,6 @@ static inline void _writel(unsigned long l, unsigned long addr)
 
 #define mmiowb()
 
-#define flush_write_buffers() do { } while (0)  /* M32R_FIXME */
-
 static inline void
 memset_io(volatile void __iomem *addr, unsigned char val, int count)
 {
-- 
2.14.2


From - Thu Nov 08 21:40:49 2018
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Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 05/33] arc: remove CONFIG_ARC_PLAT_NEEDS_PHYS_TO_DMA
Date: Wed, 10 Jan 2018 08:59:59 +0100
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To: iommu@lists.linux-foundation.org
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Xref: news.gmane.org gmane.linux.ports.sparc:27188 gmane.linux.kernel.iommu:22026 gmane.linux.ports.alpha:4680 gmane.linux.kernel.arc:3290 gmane.linux.ports.arm.kernel:625005 gmane.linux.ports.hexagon:1506 gmane.linux.ports.ia64:28505 gmane.linux.kernel.metag:1582 gmane.linux.ports.mips.general:63192 gmane.linux.ports.parisc:28181 gmane.linux.ports.ppc64.devel:151829 gmane.linux.ports.sh.devel:56237 gmane.linux.kernel.cross-arch:41250 gmane.linux.kernel:2662712
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/27188>

We always use the stub definitions, so remove the unused other code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/Kconfig                   |  3 ---
 arch/arc/include/asm/dma-mapping.h |  7 -------
 arch/arc/mm/dma.c                  | 14 +++++++-------
 3 files changed, 7 insertions(+), 17 deletions(-)

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 9d5fd00d9e91..f3a80cf164cc 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -463,9 +463,6 @@ config ARCH_PHYS_ADDR_T_64BIT
 config ARCH_DMA_ADDR_T_64BIT
 	bool
 
-config ARC_PLAT_NEEDS_PHYS_TO_DMA
-	bool
-
 config ARC_KVADDR_SIZE
 	int "Kernel Virtual Address Space size (MB)"
 	range 0 512
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index 94285031c4fb..7a16824bfe98 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -11,13 +11,6 @@
 #ifndef ASM_ARC_DMA_MAPPING_H
 #define ASM_ARC_DMA_MAPPING_H
 
-#ifndef CONFIG_ARC_PLAT_NEEDS_PHYS_TO_DMA
-#define plat_dma_to_phys(dev, dma_handle) ((phys_addr_t)(dma_handle))
-#define plat_phys_to_dma(dev, paddr) ((dma_addr_t)(paddr))
-#else
-#include <plat/dma.h>
-#endif
-
 extern const struct dma_map_ops arc_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index e9d93604ad0f..1dcc404b5aec 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -60,7 +60,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
 	/* This is linear addr (0x8000_0000 based) */
 	paddr = page_to_phys(page);
 
-	*dma_handle = plat_phys_to_dma(dev, paddr);
+	*dma_handle = paddr;
 
 	/* This is kernel Virtual address (0x7000_0000 based) */
 	if (need_kvaddr) {
@@ -92,7 +92,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
 static void arc_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
-	phys_addr_t paddr = plat_dma_to_phys(dev, dma_handle);
+	phys_addr_t paddr = dma_handle;
 	struct page *page = virt_to_page(paddr);
 	int is_non_coh = 1;
 
@@ -111,7 +111,7 @@ static int arc_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 {
 	unsigned long user_count = vma_pages(vma);
 	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
-	unsigned long pfn = __phys_to_pfn(plat_dma_to_phys(dev, dma_addr));
+	unsigned long pfn = __phys_to_pfn(dma_addr);
 	unsigned long off = vma->vm_pgoff;
 	int ret = -ENXIO;
 
@@ -175,7 +175,7 @@ static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
 	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
 		_dma_cache_sync(paddr, size, dir);
 
-	return plat_phys_to_dma(dev, paddr);
+	return paddr;
 }
 
 /*
@@ -190,7 +190,7 @@ static void arc_dma_unmap_page(struct device *dev, dma_addr_t handle,
 			       size_t size, enum dma_data_direction dir,
 			       unsigned long attrs)
 {
-	phys_addr_t paddr = plat_dma_to_phys(dev, handle);
+	phys_addr_t paddr = handle;
 
 	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
 		_dma_cache_sync(paddr, size, dir);
@@ -224,13 +224,13 @@ static void arc_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
 static void arc_dma_sync_single_for_cpu(struct device *dev,
 		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
 {
-	_dma_cache_sync(plat_dma_to_phys(dev, dma_handle), size, DMA_FROM_DEVICE);
+	_dma_cache_sync(dma_handle, size, DMA_FROM_DEVICE);
 }
 
 static void arc_dma_sync_single_for_device(struct device *dev,
 		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
 {
-	_dma_cache_sync(plat_dma_to_phys(dev, dma_handle), size, DMA_TO_DEVICE);
+	_dma_cache_sync(dma_handle, size, DMA_TO_DEVICE);
 }
 
 static void arc_dma_sync_sg_for_cpu(struct device *dev,
-- 
2.14.2

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From - Thu Nov 08 21:40:49 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 09/33] dma-mapping: take dma_pfn_offset into account in dma_max_pfn
Date: Wed, 10 Jan 2018 09:00:03 +0100
Lines: 24
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Cc: Konrad Rzeszutek Wilk <konrad@darnok.org>,
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        x86@kernel.org, linux-arch@vger.kernel.org,
        linux-kernel@vger.kernel.org
To: iommu@lists.linux-foundation.org
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Xref: news.gmane.org gmane.linux.ports.hexagon:1507 gmane.linux.kernel.iommu:22027 gmane.linux.ports.alpha:4681 gmane.linux.kernel.arc:3291 gmane.linux.ports.arm.kernel:625006 gmane.linux.ports.ia64:28506 gmane.linux.kernel.metag:1583 gmane.linux.ports.mips.general:63193 gmane.linux.ports.parisc:28182 gmane.linux.ports.ppc64.devel:151830 gmane.linux.ports.sh.devel:56238 gmane.linux.ports.sparc:27189 gmane.linux.kernel.cross-arch:41251 gmane.linux.kernel:2662713
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.hexagon/1507>

This makes sure the generic version can be used with architectures /
devices that have a DMA offset in the direct mapping.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 include/linux/dma-mapping.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 81ed9b2d84dc..d84951865be7 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -692,7 +692,7 @@ static inline int dma_set_seg_boundary(struct device *dev, unsigned long mask)
 #ifndef dma_max_pfn
 static inline unsigned long dma_max_pfn(struct device *dev)
 {
-	return *dev->dma_mask >> PAGE_SHIFT;
+	return (*dev->dma_mask >> PAGE_SHIFT) + dev->dma_pfn_offset;
 }
 #endif
 
-- 
2.14.2


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Subject: [PATCH 07/33] riscv: remove the unused dma_capable helper
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22028>

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/riscv/include/asm/dma-mapping.h | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/riscv/include/asm/dma-mapping.h b/arch/riscv/include/asm/dma-mapping.h
index 3eec1000196d..73849e2cc761 100644
--- a/arch/riscv/include/asm/dma-mapping.h
+++ b/arch/riscv/include/asm/dma-mapping.h
@@ -27,12 +27,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &dma_noop_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #endif	/* __ASM_RISCV_DMA_MAPPING_H */
-- 
2.14.2


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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 08/33] s390: remove the unused dma_capable helper
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Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/s390/include/asm/dma-mapping.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index eaf490f9c5bc..2ec7240c1ada 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -16,11 +16,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &dma_noop_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #endif /* _ASM_S390_DMA_MAPPING_H */
-- 
2.14.2


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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 11/33] dma-mapping: move swiotlb arch helpers to a new header
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/1586>

phys_to_dma, dma_to_phys and dma_capable are helpers published by
architecture code for use of swiotlb and xen-swiotlb only.  Drivers are
not supposed to use these directly, but use the DMA API instead.

Move these to a new asm/dma-direct.h helper, included by a
linux/dma-direct.h wrapper that provides the default linear mapping
unless the architecture wants to override it.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 MAINTAINERS                                        |  1 +
 arch/Kconfig                                       |  4 +++
 arch/arm/Kconfig                                   |  1 +
 arch/arm/include/asm/dma-direct.h                  | 36 ++++++++++++++++++++++
 arch/arm/include/asm/dma-mapping.h                 | 31 -------------------
 arch/arm64/include/asm/dma-mapping.h               | 22 -------------
 arch/arm64/mm/dma-mapping.c                        |  2 +-
 arch/ia64/include/asm/dma-mapping.h                | 18 -----------
 arch/mips/Kconfig                                  |  2 ++
 arch/mips/include/asm/dma-direct.h                 |  1 +
 arch/mips/include/asm/dma-mapping.h                |  8 -----
 .../include/asm/mach-cavium-octeon/dma-coherence.h |  8 +++++
 arch/mips/include/asm/mach-generic/dma-coherence.h | 12 --------
 .../include/asm/mach-loongson64/dma-coherence.h    |  8 +++++
 arch/powerpc/Kconfig                               |  1 +
 arch/powerpc/include/asm/dma-direct.h              | 29 +++++++++++++++++
 arch/powerpc/include/asm/dma-mapping.h             | 25 ---------------
 arch/tile/include/asm/dma-mapping.h                | 18 -----------
 arch/unicore32/include/asm/dma-mapping.h           | 18 -----------
 arch/x86/Kconfig                                   |  1 +
 arch/x86/include/asm/dma-direct.h                  | 30 ++++++++++++++++++
 arch/x86/include/asm/dma-mapping.h                 | 26 ----------------
 arch/x86/kernel/amd_gart_64.c                      |  1 +
 arch/x86/kernel/pci-dma.c                          |  2 +-
 arch/x86/kernel/pci-nommu.c                        |  2 +-
 arch/x86/kernel/pci-swiotlb.c                      |  2 +-
 arch/x86/mm/mem_encrypt.c                          |  2 +-
 arch/x86/pci/sta2x11-fixup.c                       |  1 +
 arch/xtensa/include/asm/dma-mapping.h              | 10 ------
 drivers/crypto/marvell/cesa.c                      |  1 +
 drivers/mtd/nand/qcom_nandc.c                      |  1 +
 drivers/xen/swiotlb-xen.c                          |  2 +-
 include/linux/dma-direct.h                         | 32 +++++++++++++++++++
 lib/swiotlb.c                                      |  2 +-
 34 files changed, 165 insertions(+), 195 deletions(-)
 create mode 100644 arch/arm/include/asm/dma-direct.h
 create mode 100644 arch/mips/include/asm/dma-direct.h
 create mode 100644 arch/powerpc/include/asm/dma-direct.h
 create mode 100644 arch/x86/include/asm/dma-direct.h
 create mode 100644 include/linux/dma-direct.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 95c3fa1f520f..d2cfdcce1db5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4338,6 +4338,7 @@ F:	lib/dma-noop.c
 F:	lib/dma-virt.c
 F:	drivers/base/dma-mapping.c
 F:	drivers/base/dma-coherent.c
+F:	include/linux/dma-direct.h
 F:	include/linux/dma-mapping.h
 
 DME1737 HARDWARE MONITOR DRIVER
diff --git a/arch/Kconfig b/arch/Kconfig
index 400b9e1b2f27..3edf118ad777 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -938,6 +938,10 @@ config STRICT_MODULE_RWX
 	  and non-text memory will be made non-executable. This provides
 	  protection against certain security exploits (e.g. writing to text)
 
+# select if the architecture provides an asm/dma-direct.h header
+config ARCH_HAS_PHYS_TO_DMA
+	bool
+
 config ARCH_HAS_REFCOUNT
 	bool
 	help
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 51c8df561077..00d889a37965 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -8,6 +8,7 @@ config ARM
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_SET_MEMORY
+	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
 	select ARCH_HAS_STRICT_MODULE_RWX if MMU
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
diff --git a/arch/arm/include/asm/dma-direct.h b/arch/arm/include/asm/dma-direct.h
new file mode 100644
index 000000000000..5b0a8a421894
--- /dev/null
+++ b/arch/arm/include/asm/dma-direct.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_ARM_DMA_DIRECT_H
+#define ASM_ARM_DMA_DIRECT_H 1
+
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	unsigned int offset = paddr & ~PAGE_MASK;
+	return pfn_to_dma(dev, __phys_to_pfn(paddr)) + offset;
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
+{
+	unsigned int offset = dev_addr & ~PAGE_MASK;
+	return __pfn_to_phys(dma_to_pfn(dev, dev_addr)) + offset;
+}
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	u64 limit, mask;
+
+	if (!dev->dma_mask)
+		return 0;
+
+	mask = *dev->dma_mask;
+
+	limit = (mask + 1) & ~mask;
+	if (limit && size > limit)
+		return 0;
+
+	if ((addr | (addr + size - 1)) & ~mask)
+		return 0;
+
+	return 1;
+}
+
+#endif /* ASM_ARM_DMA_DIRECT_H */
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index daf837423a76..5fb1b7fbdfbe 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -109,37 +109,6 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	unsigned int offset = paddr & ~PAGE_MASK;
-	return pfn_to_dma(dev, __phys_to_pfn(paddr)) + offset;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
-{
-	unsigned int offset = dev_addr & ~PAGE_MASK;
-	return __pfn_to_phys(dma_to_pfn(dev, dev_addr)) + offset;
-}
-
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	u64 limit, mask;
-
-	if (!dev->dma_mask)
-		return 0;
-
-	mask = *dev->dma_mask;
-
-	limit = (mask + 1) & ~mask;
-	if (limit && size > limit)
-		return 0;
-
-	if ((addr | (addr + size - 1)) & ~mask)
-		return 0;
-
-	return 1;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size) { }
 
 /**
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index eada887a93bf..400fa67d3b5a 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -50,28 +50,6 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	dma_addr_t dev_addr = (dma_addr_t)paddr;
-
-	return dev_addr - ((dma_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
-{
-	phys_addr_t paddr = (phys_addr_t)dev_addr;
-
-	return paddr + ((phys_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
-}
-
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size)
 {
 }
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index b45c5bcaeccb..f3a637b98487 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -24,7 +24,7 @@
 #include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/genalloc.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/dma-contiguous.h>
 #include <linux/vmalloc.h>
 #include <linux/swiotlb.h>
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index c1bab526a046..eabee56d995c 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -27,22 +27,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return platform_dma_get_ops(NULL);
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr;
-}
-
 #endif /* _ASM_IA64_DMA_MAPPING_H */
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 350a990fc719..4b0c26b2e9b7 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -429,6 +429,7 @@ config MACH_LOONGSON32
 
 config MACH_LOONGSON64
 	bool "Loongson-2/3 family of machines"
+	select ARCH_HAS_PHYS_TO_DMA
 	select SYS_SUPPORTS_ZBOOT
 	help
 	  This enables the support of Loongson-2/3 family of machines.
@@ -877,6 +878,7 @@ config MIKROTIK_RB532
 config CAVIUM_OCTEON_SOC
 	bool "Cavium Networks Octeon SoC based boards"
 	select CEVT_R4K
+	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_PHYS_ADDR_T_64BIT
 	select DMA_COHERENT
 	select SYS_SUPPORTS_64BIT_KERNEL
diff --git a/arch/mips/include/asm/dma-direct.h b/arch/mips/include/asm/dma-direct.h
new file mode 100644
index 000000000000..f32f15530aba
--- /dev/null
+++ b/arch/mips/include/asm/dma-direct.h
@@ -0,0 +1 @@
+#include <asm/dma-coherence.h>
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 0d9418d264f9..676c14cfc580 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -17,14 +17,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return mips_dma_map_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-
-	return addr + size <= *dev->dma_mask;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
 #define arch_setup_dma_ops arch_setup_dma_ops
diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
index 9110988b92a1..f00833acb626 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
@@ -61,6 +61,14 @@ static inline void plat_post_dma_flush(struct device *dev)
 {
 }
 
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size <= *dev->dma_mask;
+}
+
 dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
 phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
 
diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h
index 61addb1677e9..8ad7a40ca786 100644
--- a/arch/mips/include/asm/mach-generic/dma-coherence.h
+++ b/arch/mips/include/asm/mach-generic/dma-coherence.h
@@ -70,16 +70,4 @@ static inline void plat_post_dma_flush(struct device *dev)
 }
 #endif
 
-#ifdef CONFIG_SWIOTLB
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr;
-}
-#endif
-
 #endif /* __ASM_MACH_GENERIC_DMA_COHERENCE_H */
diff --git a/arch/mips/include/asm/mach-loongson64/dma-coherence.h b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
index 1602a9e9e8c2..5cfda8f893e9 100644
--- a/arch/mips/include/asm/mach-loongson64/dma-coherence.h
+++ b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
@@ -17,6 +17,14 @@
 
 struct device;
 
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size <= *dev->dma_mask;
+}
+
 extern dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
 extern phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
 static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c51e6ce42e7a..887285eb684a 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -139,6 +139,7 @@ config PPC
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
+	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_HAS_PMEM_API                if PPC64
 	select ARCH_HAS_SCALED_CPUTIME		if VIRT_CPU_ACCOUNTING_NATIVE
 	select ARCH_HAS_SG_CHAIN
diff --git a/arch/powerpc/include/asm/dma-direct.h b/arch/powerpc/include/asm/dma-direct.h
new file mode 100644
index 000000000000..a5b59c765426
--- /dev/null
+++ b/arch/powerpc/include/asm/dma-direct.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_POWERPC_DMA_DIRECT_H
+#define ASM_POWERPC_DMA_DIRECT_H 1
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+#ifdef CONFIG_SWIOTLB
+	struct dev_archdata *sd = &dev->archdata;
+
+	if (sd->max_direct_dma_addr && addr + size > sd->max_direct_dma_addr)
+		return false;
+#endif
+
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size - 1 <= *dev->dma_mask;
+}
+
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	return paddr + get_dma_offset(dev);
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+{
+	return daddr - get_dma_offset(dev);
+}
+#endif /* ASM_POWERPC_DMA_DIRECT_H */
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 592c7f418aa0..f6ab51205a85 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -112,31 +112,6 @@ extern int dma_set_mask(struct device *dev, u64 dma_mask);
 
 extern u64 __dma_get_required_mask(struct device *dev);
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-#ifdef CONFIG_SWIOTLB
-	struct dev_archdata *sd = &dev->archdata;
-
-	if (sd->max_direct_dma_addr && addr + size > sd->max_direct_dma_addr)
-		return false;
-#endif
-
-	if (!dev->dma_mask)
-		return false;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr + get_dma_offset(dev);
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr - get_dma_offset(dev);
-}
-
 #define ARCH_HAS_DMA_MMAP_COHERENT
 
 #endif /* __KERNEL__ */
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 97ad62878290..75b8aaa4e70b 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -44,26 +44,8 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
 	dev->archdata.dma_offset = off;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #define HAVE_ARCH_DMA_SET_MASK 1
 int dma_set_mask(struct device *dev, u64 mask);
 
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index ac608c2f6af6..5cb250bf2d8c 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -25,24 +25,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &swiotlb_dma_map_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (dev && dev->dma_mask)
-		return addr + size - 1 <= *dev->dma_mask;
-
-	return 1;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
 #endif /* __KERNEL__ */
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d4fc98c50378..f6f4328103c0 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -54,6 +54,7 @@ config X86
 	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_KCOV			if X86_64
+	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_HAS_PMEM_API		if X86_64
 	# Causing hangs/crashes, see the commit that added this change for details.
 	select ARCH_HAS_REFCOUNT
diff --git a/arch/x86/include/asm/dma-direct.h b/arch/x86/include/asm/dma-direct.h
new file mode 100644
index 000000000000..1295bc622ebe
--- /dev/null
+++ b/arch/x86/include/asm/dma-direct.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_X86_DMA_DIRECT_H
+#define ASM_X86_DMA_DIRECT_H 1
+
+#include <linux/mem_encrypt.h>
+
+#ifdef CONFIG_X86_DMA_REMAP /* Platform code defines bridge-specific code */
+bool dma_capable(struct device *dev, dma_addr_t addr, size_t size);
+dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
+phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
+#else
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return 0;
+
+	return addr + size - 1 <= *dev->dma_mask;
+}
+
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	return __sme_set(paddr);
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+{
+	return __sme_clr(daddr);
+}
+#endif /* CONFIG_X86_DMA_REMAP */
+#endif /* ASM_X86_DMA_DIRECT_H */
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 0350d99bb8fd..dfdc9357a349 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -12,7 +12,6 @@
 #include <asm/io.h>
 #include <asm/swiotlb.h>
 #include <linux/dma-contiguous.h>
-#include <linux/mem_encrypt.h>
 
 #ifdef CONFIG_ISA
 # define ISA_DMA_BIT_MASK DMA_BIT_MASK(24)
@@ -42,31 +41,6 @@ extern void dma_generic_free_coherent(struct device *dev, size_t size,
 				      void *vaddr, dma_addr_t dma_addr,
 				      unsigned long attrs);
 
-#ifdef CONFIG_X86_DMA_REMAP /* Platform code defines bridge-specific code */
-extern bool dma_capable(struct device *dev, dma_addr_t addr, size_t size);
-extern dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
-extern phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
-#else
-
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return __sme_set(paddr);
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return __sme_clr(daddr);
-}
-#endif /* CONFIG_X86_DMA_REMAP */
-
 static inline unsigned long dma_alloc_coherent_mask(struct device *dev,
 						    gfp_t gfp)
 {
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index cc0e8bc0ea3f..ecd486cb06ab 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -31,6 +31,7 @@
 #include <linux/io.h>
 #include <linux/gfp.h>
 #include <linux/atomic.h>
+#include <linux/dma-direct.h>
 #include <asm/mtrr.h>
 #include <asm/pgtable.h>
 #include <asm/proto.h>
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 599d7462eccc..8439e6de6156 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/dma-debug.h>
 #include <linux/dmar.h>
 #include <linux/export.h>
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index b0caae27e1b7..618285e475c6 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Fallback functions when the main IOMMU code is not compiled in. This
    code is roughly equivalent to i386. */
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
 #include <linux/string.h>
 #include <linux/gfp.h>
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 53bd05ea90d8..9d3e35c33d94 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -6,7 +6,7 @@
 #include <linux/init.h>
 #include <linux/swiotlb.h>
 #include <linux/bootmem.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/mem_encrypt.h>
 
 #include <asm/iommu.h>
diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c
index 391b13402e40..09532c935da0 100644
--- a/arch/x86/mm/mem_encrypt.c
+++ b/arch/x86/mm/mem_encrypt.c
@@ -15,7 +15,7 @@
 #include <linux/linkage.h>
 #include <linux/init.h>
 #include <linux/mm.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/swiotlb.h>
 #include <linux/mem_encrypt.h>
 
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 53d600217973..75577c1490c4 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -26,6 +26,7 @@
 #include <linux/pci_ids.h>
 #include <linux/export.h>
 #include <linux/list.h>
+#include <linux/dma-direct.h>
 #include <asm/iommu.h>
 
 #define STA2X11_SWIOTLB_SIZE (4*1024*1024)
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 153bf2370988..44098800dad7 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -23,14 +23,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &xtensa_dma_map_ops;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return (dma_addr_t)paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return (phys_addr_t)daddr;
-}
-
 #endif	/* _XTENSA_DMA_MAPPING_H */
diff --git a/drivers/crypto/marvell/cesa.c b/drivers/crypto/marvell/cesa.c
index 293832488cc9..3a0c40081ffb 100644
--- a/drivers/crypto/marvell/cesa.c
+++ b/drivers/crypto/marvell/cesa.c
@@ -24,6 +24,7 @@
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
 #include <linux/module.h>
+#include <linux/dma-direct.h> /* XXX: drivers shall never use this directly! */
 #include <linux/clk.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
diff --git a/drivers/mtd/nand/qcom_nandc.c b/drivers/mtd/nand/qcom_nandc.c
index 2656c1ac5646..411cdfd12a85 100644
--- a/drivers/mtd/nand/qcom_nandc.c
+++ b/drivers/mtd/nand/qcom_nandc.c
@@ -23,6 +23,7 @@
 #include <linux/of_device.h>
 #include <linux/delay.h>
 #include <linux/dma/qcom_bam_dma.h>
+#include <linux/dma-direct.h> /* XXX: drivers shall never use this directly! */
 
 /* NANDc reg offsets */
 #define	NAND_FLASH_CMD			0x00
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 82fc54f8eb77..5bb72d3f8337 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -36,7 +36,7 @@
 #define pr_fmt(fmt) "xen:" KBUILD_MODNAME ": " fmt
 
 #include <linux/bootmem.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/export.h>
 #include <xen/swiotlb-xen.h>
 #include <xen/page.h>
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
new file mode 100644
index 000000000000..2cc1b6558944
--- /dev/null
+++ b/include/linux/dma-direct.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_DMA_DIRECT_H
+#define _LINUX_DMA_DIRECT_H 1
+
+#include <linux/dma-mapping.h>
+
+#ifdef CONFIG_ARCH_HAS_PHYS_TO_DMA
+#include <asm/dma-direct.h>
+#else
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	dma_addr_t dev_addr = (dma_addr_t)paddr;
+
+	return dev_addr - ((dma_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
+{
+	phys_addr_t paddr = (phys_addr_t)dev_addr;
+
+	return paddr + ((phys_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
+}
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size - 1 <= *dev->dma_mask;
+}
+#endif /* !CONFIG_ARCH_HAS_PHYS_TO_DMA */
+#endif /* _LINUX_DMA_DIRECT_H */
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index cea19aaf303c..6583f3512386 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -18,7 +18,7 @@
  */
 
 #include <linux/cache.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/mm.h>
 #include <linux/export.h>
 #include <linux/spinlock.h>
-- 
2.14.2


From - Thu Nov 08 21:40:50 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 17/33] microblaze: remove the dead !NOT_COHERENT_CACHE dma code
Date: Wed, 10 Jan 2018 09:00:11 +0100
Lines: 73
Approved: news@gmane.org
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Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/microblaze/kernel/dma.c | 28 ----------------------------
 1 file changed, 28 deletions(-)

diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index b45d8f8967af..c91e8cef98dd 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -15,42 +15,18 @@
 #include <linux/bug.h>
 #include <asm/cacheflush.h>
 
-#define NOT_COHERENT_CACHE
-
 static void *dma_nommu_alloc_coherent(struct device *dev, size_t size,
 				       dma_addr_t *dma_handle, gfp_t flag,
 				       unsigned long attrs)
 {
-#ifdef NOT_COHERENT_CACHE
 	return consistent_alloc(flag, size, dma_handle);
-#else
-	void *ret;
-	struct page *page;
-	int node = dev_to_node(dev);
-
-	/* ignore region specifiers */
-	flag  &= ~(__GFP_HIGHMEM);
-
-	page = alloc_pages_node(node, flag, get_order(size));
-	if (page == NULL)
-		return NULL;
-	ret = page_address(page);
-	memset(ret, 0, size);
-	*dma_handle = virt_to_phys(ret);
-
-	return ret;
-#endif
 }
 
 static void dma_nommu_free_coherent(struct device *dev, size_t size,
 				     void *vaddr, dma_addr_t dma_handle,
 				     unsigned long attrs)
 {
-#ifdef NOT_COHERENT_CACHE
 	consistent_free(size, vaddr);
-#else
-	free_pages((unsigned long)vaddr, get_order(size));
-#endif
 }
 
 static inline void __dma_sync(unsigned long paddr,
@@ -186,12 +162,8 @@ int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 	if (off >= count || user_count > (count - off))
 		return -ENXIO;
 
-#ifdef NOT_COHERENT_CACHE
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 	pfn = consistent_virt_to_pfn(cpu_addr);
-#else
-	pfn = virt_to_pfn(cpu_addr);
-#endif
 	return remap_pfn_range(vma, vma->vm_start, pfn + off,
 			       vma->vm_end - vma->vm_start, vma->vm_page_prot);
 #else
-- 
2.14.2

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From - Thu Nov 08 21:40:50 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 12/33] dma-mapping: move dma_mark_clean to dma-direct.h
Date: Wed, 10 Jan 2018 09:00:06 +0100
Lines: 128
Approved: news@gmane.org
Message-ID: <20180110080027.13879-13-hch@lst.de>
References: <20180110080027.13879-1-hch@lst.de>
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To: iommu@lists.linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.parisc/28187>

And unlike the other helpers we don't require a <asm/dma-direct.h> as
this helper is a special case for ia64 only, and this keeps it as
simple as possible.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arm/include/asm/dma-mapping.h       | 2 --
 arch/arm64/include/asm/dma-mapping.h     | 4 ----
 arch/ia64/Kconfig                        | 1 +
 arch/ia64/include/asm/dma.h              | 2 --
 arch/mips/include/asm/dma-mapping.h      | 2 --
 arch/powerpc/include/asm/swiotlb.h       | 2 --
 arch/tile/include/asm/dma-mapping.h      | 2 --
 arch/unicore32/include/asm/dma-mapping.h | 2 --
 arch/x86/include/asm/swiotlb.h           | 2 --
 include/linux/dma-direct.h               | 9 +++++++++
 10 files changed, 10 insertions(+), 18 deletions(-)

diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 5fb1b7fbdfbe..e5d9020c9ee1 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -109,8 +109,6 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size) { }
-
 /**
  * arm_dma_alloc - allocate consistent memory for DMA
  * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 400fa67d3b5a..b7847eb8a7bb 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -50,9 +50,5 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size)
-{
-}
-
 #endif	/* __KERNEL__ */
 #endif	/* __ASM_DMA_MAPPING_H */
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 49583c5a5d44..4d18fca885ee 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -33,6 +33,7 @@ config IA64
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_VIRT_CPU_ACCOUNTING
+	select ARCH_HAS_DMA_MARK_CLEAN
 	select ARCH_HAS_SG_CHAIN
 	select VIRT_TO_BUS
 	select ARCH_DISCARD_MEMBLOCK
diff --git a/arch/ia64/include/asm/dma.h b/arch/ia64/include/asm/dma.h
index 186850eec934..23604d6a2cb2 100644
--- a/arch/ia64/include/asm/dma.h
+++ b/arch/ia64/include/asm/dma.h
@@ -20,6 +20,4 @@ extern unsigned long MAX_DMA_ADDRESS;
 
 #define free_dma(x)
 
-void dma_mark_clean(void *addr, size_t size);
-
 #endif /* _ASM_IA64_DMA_H */
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 676c14cfc580..886e75a383f2 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -17,8 +17,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return mips_dma_map_ops;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 #define arch_setup_dma_ops arch_setup_dma_ops
 static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base,
 				      u64 size, const struct iommu_ops *iommu,
diff --git a/arch/powerpc/include/asm/swiotlb.h b/arch/powerpc/include/asm/swiotlb.h
index 01d45a5fd00b..9341ee804d19 100644
--- a/arch/powerpc/include/asm/swiotlb.h
+++ b/arch/powerpc/include/asm/swiotlb.h
@@ -15,8 +15,6 @@
 
 extern const struct dma_map_ops swiotlb_dma_ops;
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 extern unsigned int ppc_swiotlb_enable;
 int __init swiotlb_setup_bus_notifier(void);
 
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 75b8aaa4e70b..d25fce101fc0 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -44,8 +44,6 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
 	dev->archdata.dma_offset = off;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 #define HAVE_ARCH_DMA_SET_MASK 1
 int dma_set_mask(struct device *dev, u64 mask);
 
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 5cb250bf2d8c..f2bfec273aa7 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -25,7 +25,5 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &swiotlb_dma_map_ops;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 #endif /* __KERNEL__ */
 #endif
diff --git a/arch/x86/include/asm/swiotlb.h b/arch/x86/include/asm/swiotlb.h
index bdf9aed40403..1c6a6cb230ff 100644
--- a/arch/x86/include/asm/swiotlb.h
+++ b/arch/x86/include/asm/swiotlb.h
@@ -28,8 +28,6 @@ static inline void pci_swiotlb_late_init(void)
 }
 #endif
 
-static inline void dma_mark_clean(void *addr, size_t size) {}

From - Thu Nov 08 21:40:50 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 13/33] hexagon: use the generic dma_capable helper
Date: Wed, 10 Jan 2018 09:00:07 +0100
Lines: 43
Approved: news@gmane.org
Message-ID: <20180110080027.13879-14-hch@lst.de>
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Richard Kuo <rkuo@codeaurora.org>
---
 arch/hexagon/include/asm/dma-mapping.h | 7 -------
 arch/hexagon/kernel/dma.c              | 1 +
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index 5208de242e79..263f6acbfb0f 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -37,11 +37,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return dma_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #endif
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index 546792d176a4..ad8347c29dcf 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -19,6 +19,7 @@
  */
 
 #include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/bootmem.h>
 #include <linux/genalloc.h>
 #include <asm/dma-mapping.h>
-- 
2.14.2

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From - Thu Nov 08 21:40:50 2018
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Newsgroups: gmane.linux.ports.hexagon,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 21/33] dma-mapping: add an arch_dma_supported hook
Date: Wed, 10 Jan 2018 09:00:15 +0100
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Xref: news.gmane.org gmane.linux.ports.hexagon:1514 gmane.linux.kernel.iommu:22034 gmane.linux.ports.alpha:4688 gmane.linux.kernel.arc:3298 gmane.linux.ports.arm.kernel:625013 gmane.linux.ports.ia64:28513 gmane.linux.kernel.metag:1590 gmane.linux.ports.mips.general:63200 gmane.linux.ports.parisc:28189 gmane.linux.ports.ppc64.devel:151837 gmane.linux.ports.sh.devel:56245 gmane.linux.ports.sparc:27196 gmane.linux.kernel.cross-arch:41258 gmane.linux.kernel:2662720
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.hexagon/1514>

To implement the x86 forbid_dac and iommu_sac_force we want an arch hook
so that it can apply the global options across all dma_map_ops
implementations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/x86/include/asm/dma-mapping.h |  3 +++
 arch/x86/kernel/pci-dma.c          | 19 ++++++++++++-------
 include/linux/dma-mapping.h        | 11 +++++++++++
 3 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index dfdc9357a349..6277c83c0eb1 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -30,6 +30,9 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return dma_ops;
 }
 
+int arch_dma_supported(struct device *dev, u64 mask);
+#define arch_dma_supported arch_dma_supported
+
 bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
 #define arch_dma_alloc_attrs arch_dma_alloc_attrs
 
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 61a8f1cb3829..df7ab02f959f 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -215,7 +215,7 @@ static __init int iommu_setup(char *p)
 }
 early_param("iommu", iommu_setup);
 
-int x86_dma_supported(struct device *dev, u64 mask)
+int arch_dma_supported(struct device *dev, u64 mask)
 {
 #ifdef CONFIG_PCI
 	if (mask > 0xffffffff && forbid_dac > 0) {
@@ -224,12 +224,6 @@ int x86_dma_supported(struct device *dev, u64 mask)
 	}
 #endif
 
-	/* Copied from i386. Doesn't make much sense, because it will
-	   only work for pci_alloc_coherent.
-	   The caller just has to use GFP_DMA in this case. */
-	if (mask < DMA_BIT_MASK(24))
-		return 0;
-
 	/* Tell the device to use SAC when IOMMU force is on.  This
 	   allows the driver to use cheaper accesses in some cases.
 
@@ -249,6 +243,17 @@ int x86_dma_supported(struct device *dev, u64 mask)
 
 	return 1;
 }
+EXPORT_SYMBOL(arch_dma_supported);
+
+int x86_dma_supported(struct device *dev, u64 mask)
+{
+	/* Copied from i386. Doesn't make much sense, because it will
+	   only work for pci_alloc_coherent.
+	   The caller just has to use GFP_DMA in this case. */
+	if (mask < DMA_BIT_MASK(24))
+		return 0;
+	return 1;
+}
 
 static int __init pci_iommu_init(void)
 {
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 88bcb1a8211d..d67742dad904 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -576,6 +576,14 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 	return 0;
 }
 
+/*
+ * This is a hack for the legacy x86 forbid_dac and iommu_sac_force. Please
+ * don't use this is new code.
+ */
+#ifndef arch_dma_supported
+#define arch_dma_supported(dev, mask)	(1)
+#endif
+
 static inline void dma_check_mask(struct device *dev, u64 mask)
 {
 	if (sme_active() && (mask < (((u64)sme_get_me_mask() << 1) - 1)))
@@ -588,6 +596,9 @@ static inline int dma_supported(struct device *dev, u64 mask)
 
 	if (!ops)
 		return 0;
+	if (!arch_dma_supported(dev, mask))
+		return 0;
+
 	if (!ops->dma_supported)
 		return 1;
 	return ops->dma_supported(dev, mask);
-- 
2.14.2


From - Thu Nov 08 21:40:50 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22035>

The generic version now takes dma_pfn_offset into account, so there is no
more need for an architecture override.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/arm64/include/asm/dma-mapping.h | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 0df756b24863..eada887a93bf 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -76,14 +76,5 @@ static inline void dma_mark_clean(void *addr, size_t size)
 {
 }
 
-/* Override for dma_max_pfn() */
-static inline unsigned long dma_max_pfn(struct device *dev)
-{
-	dma_addr_t dma_max = (dma_addr_t)*dev->dma_mask;
-
-	return (ulong)dma_to_phys(dev, dma_max) >> PAGE_SHIFT;
-}
-#define dma_max_pfn(dev) dma_max_pfn(dev)
-
 #endif	/* __KERNEL__ */
 #endif	/* __ASM_DMA_MAPPING_H */
-- 
2.14.2


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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 19/33] dma-mapping: warn when there is no coherent_dma_mask
Date: Wed, 10 Jan 2018 09:00:13 +0100
Lines: 24
Approved: news@gmane.org
Message-ID: <20180110080027.13879-20-hch@lst.de>
References: <20180110080027.13879-1-hch@lst.de>
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        linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Michal Simek <monstr-pSz03upnqPeHXe+LvDLADg@public.gmane.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/1592>

These days all devices should have a DMA coherent mask, and most dma_ops
implementations rely on that fact.  But just to be sure add an assert to
ring the warning bell if that is not the case.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 include/linux/dma-mapping.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index d84951865be7..9f28b2fa329e 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -513,6 +513,7 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
 	void *cpu_addr;
 
 	BUG_ON(!ops);
+	WARN_ON_ONCE(!dev->coherent_dma_mask);
 
 	if (dma_alloc_from_dev_coherent(dev, size, dma_handle, &cpu_addr))
 		return cpu_addr;
-- 
2.14.2


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Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel.iommu,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 23/33] dma-direct: rename dma_noop to dma_direct
Date: Wed, 10 Jan 2018 09:00:17 +0100
Lines: 271
Approved: news@gmane.org
Message-ID: <20180110080027.13879-24-hch@lst.de>
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To: iommu@lists.linux-foundation.org
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The trivial direct mapping implementation already does a virtual to
physical translation which isn't strictly a noop, and will soon learn
to do non-direct but linear physical to dma translations through the
device offset and a few small tricks.  Rename it to a better fitting
name.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
---
 MAINTAINERS                        |  2 +-
 arch/arm/Kconfig                   |  2 +-
 arch/arm/include/asm/dma-mapping.h |  2 +-
 arch/arm/mm/dma-mapping-nommu.c    |  8 ++++----
 arch/m32r/Kconfig                  |  2 +-
 arch/riscv/Kconfig                 |  2 +-
 arch/s390/Kconfig                  |  2 +-
 include/asm-generic/dma-mapping.h  |  2 +-
 include/linux/dma-mapping.h        |  2 +-
 lib/Kconfig                        |  2 +-
 lib/Makefile                       |  2 +-
 lib/{dma-noop.c => dma-direct.c}   | 35 +++++++++++++++--------------------
 12 files changed, 29 insertions(+), 34 deletions(-)
 rename lib/{dma-noop.c => dma-direct.c} (52%)

diff --git a/MAINTAINERS b/MAINTAINERS
index 234e642e7149..2d54e636d625 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4334,7 +4334,7 @@ T:	git git://git.infradead.org/users/hch/dma-mapping.git
 W:	http://git.infradead.org/users/hch/dma-mapping.git
 S:	Supported
 F:	lib/dma-debug.c
-F:	lib/dma-noop.c
+F:	lib/dma-direct.c
 F:	lib/dma-virt.c
 F:	drivers/base/dma-mapping.c
 F:	drivers/base/dma-coherent.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 00d889a37965..430a0aa710d6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -25,7 +25,7 @@ config ARM
 	select CLONE_BACKWARDS
 	select CPU_PM if (SUSPEND || CPU_IDLE)
 	select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
-	select DMA_NOOP_OPS if !MMU
+	select DMA_DIRECT_OPS if !MMU
 	select EDAC_SUPPORT
 	select EDAC_ATOMIC_SCRUB
 	select GENERIC_ALLOCATOR
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index e5d9020c9ee1..8436f6ade57d 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -18,7 +18,7 @@ extern const struct dma_map_ops arm_coherent_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	return IS_ENABLED(CONFIG_MMU) ? &arm_dma_ops : &dma_noop_ops;
+	return IS_ENABLED(CONFIG_MMU) ? &arm_dma_ops : &dma_direct_ops;
 }
 
 #ifdef __arch_page_to_dma
diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index 6db5fc26d154..4d8042521e89 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -22,7 +22,7 @@
 #include "dma.h"
 
 /*
- *  dma_noop_ops is used if
+ *  dma_direct_ops is used if
  *   - MMU/MPU is off
  *   - cpu is v7m w/o cache support
  *   - device is coherent
@@ -39,7 +39,7 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
 				 unsigned long attrs)
 
 {
-	const struct dma_map_ops *ops = &dma_noop_ops;
+	const struct dma_map_ops *ops = &dma_direct_ops;
 	void *ret;
 
 	/*
@@ -70,7 +70,7 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
 			       void *cpu_addr, dma_addr_t dma_addr,
 			       unsigned long attrs)
 {
-	const struct dma_map_ops *ops = &dma_noop_ops;
+	const struct dma_map_ops *ops = &dma_direct_ops;
 
 	if (attrs & DMA_ATTR_NON_CONSISTENT) {
 		ops->free(dev, size, cpu_addr, dma_addr, attrs);
@@ -213,7 +213,7 @@ EXPORT_SYMBOL(arm_nommu_dma_ops);
 
 static const struct dma_map_ops *arm_nommu_get_dma_map_ops(bool coherent)
 {
-	return coherent ? &dma_noop_ops : &arm_nommu_dma_ops;
+	return coherent ? &dma_direct_ops : &arm_nommu_dma_ops;
 }
 
 void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 498398d915c1..dd84ee194579 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -19,7 +19,7 @@ config M32R
 	select MODULES_USE_ELF_RELA
 	select HAVE_DEBUG_STACKOVERFLOW
 	select CPU_NO_EFFICIENT_FFS
-	select DMA_NOOP_OPS
+	select DMA_DIRECT_OPS
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
 
 config SBUS
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 2c6adf12713a..865e14f50c14 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -83,7 +83,7 @@ config PGTABLE_LEVELS
 config HAVE_KPROBES
 	def_bool n
 
-config DMA_NOOP_OPS
+config DMA_DIRECT_OPS
 	def_bool y
 
 menu "Platform type"
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 829c67986db7..9376637229c9 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -140,7 +140,7 @@ config S390
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DMA_API_DEBUG
 	select HAVE_DMA_CONTIGUOUS
-	select DMA_NOOP_OPS
+	select DMA_DIRECT_OPS
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
diff --git a/include/asm-generic/dma-mapping.h b/include/asm-generic/dma-mapping.h
index 164031531d85..880a292d792f 100644
--- a/include/asm-generic/dma-mapping.h
+++ b/include/asm-generic/dma-mapping.h
@@ -4,7 +4,7 @@
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	return &dma_noop_ops;
+	return &dma_direct_ops;
 }
 
 #endif /* _ASM_GENERIC_DMA_MAPPING_H */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index d67742dad904..b626028a3e47 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -136,7 +136,7 @@ struct dma_map_ops {
 	int is_phys;
 };
 
-extern const struct dma_map_ops dma_noop_ops;
+extern const struct dma_map_ops dma_direct_ops;
 extern const struct dma_map_ops dma_virt_ops;
 
 #define DMA_BIT_MASK(n)	(((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
diff --git a/lib/Kconfig b/lib/Kconfig
index c5e84fbcb30b..9d3d649c9dc9 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -409,7 +409,7 @@ config HAS_DMA
 	depends on !NO_DMA
 	default y
 
-config DMA_NOOP_OPS
+config DMA_DIRECT_OPS
 	bool
 	depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
 	default n
diff --git a/lib/Makefile b/lib/Makefile
index d11c48ec8ffd..749851abe85a 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -28,7 +28,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
 
 lib-$(CONFIG_MMU) += ioremap.o
 lib-$(CONFIG_SMP) += cpumask.o
-lib-$(CONFIG_DMA_NOOP_OPS) += dma-noop.o
+lib-$(CONFIG_DMA_DIRECT_OPS) += dma-direct.o
 lib-$(CONFIG_DMA_VIRT_OPS) += dma-virt.o
 
 lib-y	+= kobject.o klist.o
diff --git a/lib/dma-noop.c b/lib/dma-direct.c
similarity index 52%
rename from lib/dma-noop.c
rename to lib/dma-direct.c
index a10185b0c2d4..0ec3262a3148 100644
--- a/lib/dma-noop.c
+++ b/lib/dma-direct.c
@@ -10,9 +10,8 @@
 #include <linux/scatterlist.h>
 #include <linux/pfn.h>
 
-static void *dma_noop_alloc(struct device *dev, size_t size,
-			    dma_addr_t *dma_handle, gfp_t gfp,
-			    unsigned long attrs)
+static void *dma_direct_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -23,24 +22,21 @@ static void *dma_noop_alloc(struct device *dev, size_t size,
 	return ret;
 }
 
-static void dma_noop_free(struct device *dev, size_t size,
-			  void *cpu_addr, dma_addr_t dma_addr,
-			  unsigned long attrs)
+static void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t dma_addr, unsigned long attrs)
 {
 	free_pages((unsigned long)cpu_addr, get_order(size));
 }
 
-static dma_addr_t dma_noop_map_page(struct device *dev, struct page *page,
-				      unsigned long offset, size_t size,
-				      enum dma_data_direction dir,
-				      unsigned long attrs)
+static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size, enum dma_data_direction dir,
+		unsigned long attrs)
 {
 	return page_to_phys(page) + offset - PFN_PHYS(dev->dma_pfn_offset);
 }
 
-static int dma_noop_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
-			     enum dma_data_direction dir,
-			     unsigned long attrs)
+static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
+		int nents, enum dma_data_direction dir, unsigned long attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -58,11 +54,10 @@ static int dma_noop_map_sg(struct device *dev, struct scatterlist *sgl, int nent
 	return nents;
 }
 
-const struct dma_map_ops dma_noop_ops = {
-	.alloc			= dma_noop_alloc,
-	.free			= dma_noop_free,
-	.map_page		= dma_noop_map_page,
-	.map_sg			= dma_noop_map_sg,
+const struct dma_map_ops dma_direct_ops = {
+	.alloc			= dma_direct_alloc,
+	.free			= dma_direct_free,
+	.map_page		= dma_direct_map_page,
+	.map_sg			= dma_direct_map_sg,
 };
-
-EXPORT_SYMBOL(dma_noop_ops);
+EXPORT_SYMBOL(dma_direct_ops);
-- 
2.14.2

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From - Thu Nov 08 21:40:50 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 14/33] powerpc: rename dma_direct_ to dma_nommu_
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22038>

We want to use the dma_direct_ namespace for a generic implementation,
so rename powerpc to the second best choice: dma_nommu_.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/powerpc/include/asm/dma-mapping.h    |  8 ++--
 arch/powerpc/kernel/dma-iommu.c           |  2 +-
 arch/powerpc/kernel/dma-swiotlb.c         |  6 +--
 arch/powerpc/kernel/dma.c                 | 68 +++++++++++++++----------------
 arch/powerpc/kernel/pci-common.c          |  2 +-
 arch/powerpc/kernel/setup-common.c        |  2 +-
 arch/powerpc/platforms/cell/iommu.c       | 28 ++++++-------
 arch/powerpc/platforms/pasemi/iommu.c     |  2 +-
 arch/powerpc/platforms/pasemi/setup.c     |  2 +-
 arch/powerpc/platforms/powernv/pci-ioda.c |  4 +-
 arch/powerpc/platforms/pseries/iommu.c    |  2 +-
 arch/powerpc/platforms/pseries/vio.c      |  2 +-
 arch/powerpc/sysdev/dart_iommu.c          |  4 +-
 arch/powerpc/sysdev/fsl_pci.c             |  2 +-
 drivers/misc/cxl/vphb.c                   |  2 +-
 15 files changed, 68 insertions(+), 68 deletions(-)

diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index f6ab51205a85..8fa394520af6 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -19,13 +19,13 @@
 #include <asm/swiotlb.h>
 
 /* Some dma direct funcs must be visible for use in other dma_ops */
-extern void *__dma_direct_alloc_coherent(struct device *dev, size_t size,
+extern void *__dma_nommu_alloc_coherent(struct device *dev, size_t size,
 					 dma_addr_t *dma_handle, gfp_t flag,
 					 unsigned long attrs);
-extern void __dma_direct_free_coherent(struct device *dev, size_t size,
+extern void __dma_nommu_free_coherent(struct device *dev, size_t size,
 				       void *vaddr, dma_addr_t dma_handle,
 				       unsigned long attrs);
-extern int dma_direct_mmap_coherent(struct device *dev,
+extern int dma_nommu_mmap_coherent(struct device *dev,
 				    struct vm_area_struct *vma,
 				    void *cpu_addr, dma_addr_t handle,
 				    size_t size, unsigned long attrs);
@@ -73,7 +73,7 @@ static inline unsigned long device_to_mask(struct device *dev)
 #ifdef CONFIG_PPC64
 extern struct dma_map_ops dma_iommu_ops;
 #endif
-extern const struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_nommu_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 66f33e7f8d40..f9fe2080ceb9 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -114,7 +114,7 @@ int dma_iommu_mapping_error(struct device *dev, dma_addr_t dma_addr)
 struct dma_map_ops dma_iommu_ops = {
 	.alloc			= dma_iommu_alloc_coherent,
 	.free			= dma_iommu_free_coherent,
-	.mmap			= dma_direct_mmap_coherent,
+	.mmap			= dma_nommu_mmap_coherent,
 	.map_sg			= dma_iommu_map_sg,
 	.unmap_sg		= dma_iommu_unmap_sg,
 	.dma_supported		= dma_iommu_dma_supported,
diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index d0ea7860e02b..f1e99b9cee97 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -47,9 +47,9 @@ static u64 swiotlb_powerpc_get_required(struct device *dev)
  * for everything else.
  */
 const struct dma_map_ops swiotlb_dma_ops = {
-	.alloc = __dma_direct_alloc_coherent,
-	.free = __dma_direct_free_coherent,
-	.mmap = dma_direct_mmap_coherent,
+	.alloc = __dma_nommu_alloc_coherent,
+	.free = __dma_nommu_free_coherent,
+	.mmap = dma_nommu_mmap_coherent,
 	.map_sg = swiotlb_map_sg_attrs,
 	.unmap_sg = swiotlb_unmap_sg_attrs,
 	.dma_supported = swiotlb_dma_supported,
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 4194bbbbdb10..6d5d04ccf3b4 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -40,7 +40,7 @@ static u64 __maybe_unused get_pfn_limit(struct device *dev)
 	return pfn;
 }
 
-static int dma_direct_dma_supported(struct device *dev, u64 mask)
+static int dma_nommu_dma_supported(struct device *dev, u64 mask)
 {
 #ifdef CONFIG_PPC64
 	u64 limit = get_dma_offset(dev) + (memblock_end_of_DRAM() - 1);
@@ -62,7 +62,7 @@ static int dma_direct_dma_supported(struct device *dev, u64 mask)
 #endif
 }
 
-void *__dma_direct_alloc_coherent(struct device *dev, size_t size,
+void *__dma_nommu_alloc_coherent(struct device *dev, size_t size,
 				  dma_addr_t *dma_handle, gfp_t flag,
 				  unsigned long attrs)
 {
@@ -119,7 +119,7 @@ void *__dma_direct_alloc_coherent(struct device *dev, size_t size,
 #endif
 }
 
-void __dma_direct_free_coherent(struct device *dev, size_t size,
+void __dma_nommu_free_coherent(struct device *dev, size_t size,
 				void *vaddr, dma_addr_t dma_handle,
 				unsigned long attrs)
 {
@@ -130,7 +130,7 @@ void __dma_direct_free_coherent(struct device *dev, size_t size,
 #endif
 }
 
-static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
+static void *dma_nommu_alloc_coherent(struct device *dev, size_t size,
 				       dma_addr_t *dma_handle, gfp_t flag,
 				       unsigned long attrs)
 {
@@ -139,8 +139,8 @@ static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 	/* The coherent mask may be smaller than the real mask, check if
 	 * we can really use the direct ops
 	 */
-	if (dma_direct_dma_supported(dev, dev->coherent_dma_mask))
-		return __dma_direct_alloc_coherent(dev, size, dma_handle,
+	if (dma_nommu_dma_supported(dev, dev->coherent_dma_mask))
+		return __dma_nommu_alloc_coherent(dev, size, dma_handle,
 						   flag, attrs);
 
 	/* Ok we can't ... do we have an iommu ? If not, fail */
@@ -154,15 +154,15 @@ static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 				    dev_to_node(dev));
 }
 
-static void dma_direct_free_coherent(struct device *dev, size_t size,
+static void dma_nommu_free_coherent(struct device *dev, size_t size,
 				     void *vaddr, dma_addr_t dma_handle,
 				     unsigned long attrs)
 {
 	struct iommu_table *iommu;
 
-	/* See comments in dma_direct_alloc_coherent() */
-	if (dma_direct_dma_supported(dev, dev->coherent_dma_mask))
-		return __dma_direct_free_coherent(dev, size, vaddr, dma_handle,
+	/* See comments in dma_nommu_alloc_coherent() */
+	if (dma_nommu_dma_supported(dev, dev->coherent_dma_mask))
+		return __dma_nommu_free_coherent(dev, size, vaddr, dma_handle,
 						  attrs);
 	/* Maybe we used an iommu ... */
 	iommu = get_iommu_table_base(dev);
@@ -175,7 +175,7 @@ static void dma_direct_free_coherent(struct device *dev, size_t size,
 	iommu_free_coherent(iommu, size, vaddr, dma_handle);
 }
 
-int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
+int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 			     void *cpu_addr, dma_addr_t handle, size_t size,
 			     unsigned long attrs)
 {
@@ -193,7 +193,7 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 			       vma->vm_page_prot);
 }
 
-static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
+static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl,
 			     int nents, enum dma_data_direction direction,
 			     unsigned long attrs)
 {
@@ -213,13 +213,13 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
-static void dma_direct_unmap_sg(struct device *dev, struct scatterlist *sg,
+static void dma_nommu_unmap_sg(struct device *dev, struct scatterlist *sg,
 				int nents, enum dma_data_direction direction,
 				unsigned long attrs)
 {
 }
 
-static u64 dma_direct_get_required_mask(struct device *dev)
+static u64 dma_nommu_get_required_mask(struct device *dev)
 {
 	u64 end, mask;
 
@@ -231,7 +231,7 @@ static u64 dma_direct_get_required_mask(struct device *dev)
 	return mask;
 }
 
-static inline dma_addr_t dma_direct_map_page(struct device *dev,
+static inline dma_addr_t dma_nommu_map_page(struct device *dev,
 					     struct page *page,
 					     unsigned long offset,
 					     size_t size,
@@ -246,7 +246,7 @@ static inline dma_addr_t dma_direct_map_page(struct device *dev,
 	return page_to_phys(page) + offset + get_dma_offset(dev);
 }
 
-static inline void dma_direct_unmap_page(struct device *dev,
+static inline void dma_nommu_unmap_page(struct device *dev,
 					 dma_addr_t dma_address,
 					 size_t size,
 					 enum dma_data_direction direction,
@@ -255,7 +255,7 @@ static inline void dma_direct_unmap_page(struct device *dev,
 }
 
 #ifdef CONFIG_NOT_COHERENT_CACHE
-static inline void dma_direct_sync_sg(struct device *dev,
+static inline void dma_nommu_sync_sg(struct device *dev,
 		struct scatterlist *sgl, int nents,
 		enum dma_data_direction direction)
 {
@@ -266,7 +266,7 @@ static inline void dma_direct_sync_sg(struct device *dev,
 		__dma_sync_page(sg_page(sg), sg->offset, sg->length, direction);
 }
 
-static inline void dma_direct_sync_single(struct device *dev,
+static inline void dma_nommu_sync_single(struct device *dev,
 					  dma_addr_t dma_handle, size_t size,
 					  enum dma_data_direction direction)
 {
@@ -274,24 +274,24 @@ static inline void dma_direct_sync_single(struct device *dev,
 }
 #endif
 
-const struct dma_map_ops dma_direct_ops = {
-	.alloc				= dma_direct_alloc_coherent,
-	.free				= dma_direct_free_coherent,
-	.mmap				= dma_direct_mmap_coherent,
-	.map_sg				= dma_direct_map_sg,
-	.unmap_sg			= dma_direct_unmap_sg,
-	.dma_supported			= dma_direct_dma_supported,
-	.map_page			= dma_direct_map_page,
-	.unmap_page			= dma_direct_unmap_page,
-	.get_required_mask		= dma_direct_get_required_mask,
+const struct dma_map_ops dma_nommu_ops = {
+	.alloc				= dma_nommu_alloc_coherent,
+	.free				= dma_nommu_free_coherent,
+	.mmap				= dma_nommu_mmap_coherent,
+	.map_sg				= dma_nommu_map_sg,
+	.unmap_sg			= dma_nommu_unmap_sg,
+	.dma_supported			= dma_nommu_dma_supported,
+	.map_page			= dma_nommu_map_page,
+	.unmap_page			= dma_nommu_unmap_page,
+	.get_required_mask		= dma_nommu_get_required_mask,
 #ifdef CONFIG_NOT_COHERENT_CACHE
-	.sync_single_for_cpu 		= dma_direct_sync_single,
-	.sync_single_for_device 	= dma_direct_sync_single,
-	.sync_sg_for_cpu 		= dma_direct_sync_sg,
-	.sync_sg_for_device 		= dma_direct_sync_sg,
+	.sync_single_for_cpu 		= dma_nommu_sync_single,
+	.sync_single_for_device 	= dma_nommu_sync_single,
+	.sync_sg_for_cpu 		= dma_nommu_sync_sg,
+	.sync_sg_for_device 		= dma_nommu_sync_sg,
 #endif
 };
-EXPORT_SYMBOL(dma_direct_ops);
+EXPORT_SYMBOL(dma_nommu_ops);
 
 int dma_set_coherent_mask(struct device *dev, u64 mask)
 {
@@ -302,7 +302,7 @@ int dma_set_coherent_mask(struct device *dev, u64 mask)
 		 * is no dma_op->set_coherent_mask() so we have to do
 		 * things the hard way:
 		 */
-		if (get_dma_ops(dev) != &dma_direct_ops ||
+		if (get_dma_ops(dev) != &dma_nommu_ops ||
 		    get_iommu_table_base(dev) == NULL ||
 		    !dma_iommu_dma_supported(dev, mask))
 			return -EIO;
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 0ac7aa346c69..590f4d0a6cb1 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -60,7 +60,7 @@ resource_size_t isa_mem_base;
 EXPORT_SYMBOL(isa_mem_base);
 
 
-static const struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
+static const struct dma_map_ops *pci_dma_ops = &dma_nommu_ops;
 
 void set_pci_dma_ops(const struct dma_map_ops *dma_ops)
 {
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 9d213542a48b..9b89df1e71ab 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -791,7 +791,7 @@ void arch_setup_pdev_archdata(struct platform_device *pdev)
 {
 	pdev->archdata.dma_mask = DMA_BIT_MASK(32);
 	pdev->dev.dma_mask = &pdev->archdata.dma_mask;
- 	set_dma_ops(&pdev->dev, &dma_direct_ops);
+ 	set_dma_ops(&pdev->dev, &dma_nommu_ops);
 }
 
 static __init void print_system_info(void)
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 4b91ad08eefd..12352a58072a 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -541,7 +541,7 @@ static struct cbe_iommu *cell_iommu_for_node(int nid)
 	return NULL;
 }
 
-static unsigned long cell_dma_direct_offset;
+static unsigned long cell_dma_nommu_offset;
 
 static unsigned long dma_iommu_fixed_base;
 
@@ -580,7 +580,7 @@ static void *dma_fixed_alloc_coherent(struct device *dev, size_t size,
 					    device_to_mask(dev), flag,
 					    dev_to_node(dev));
 	else
-		return dma_direct_ops.alloc(dev, size, dma_handle, flag,
+		return dma_nommu_ops.alloc(dev, size, dma_handle, flag,
 					    attrs);
 }
 
@@ -592,7 +592,7 @@ static void dma_fixed_free_coherent(struct device *dev, size_t size,
 		iommu_free_coherent(cell_get_iommu_table(dev), size, vaddr,
 				    dma_handle);
 	else
-		dma_direct_ops.free(dev, size, vaddr, dma_handle, attrs);
+		dma_nommu_ops.free(dev, size, vaddr, dma_handle, attrs);
 }
 
 static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page,
@@ -601,7 +601,7 @@ static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page,
 				     unsigned long attrs)
 {
 	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
-		return dma_direct_ops.map_page(dev, page, offset, size,
+		return dma_nommu_ops.map_page(dev, page, offset, size,
 					       direction, attrs);
 	else
 		return iommu_map_page(dev, cell_get_iommu_table(dev), page,
@@ -614,7 +614,7 @@ static void dma_fixed_unmap_page(struct device *dev, dma_addr_t dma_addr,
 				 unsigned long attrs)
 {
 	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
-		dma_direct_ops.unmap_page(dev, dma_addr, size, direction,
+		dma_nommu_ops.unmap_page(dev, dma_addr, size, direction,
 					  attrs);
 	else
 		iommu_unmap_page(cell_get_iommu_table(dev), dma_addr, size,
@@ -626,7 +626,7 @@ static int dma_fixed_map_sg(struct device *dev, struct scatterlist *sg,
 			   unsigned long attrs)
 {
 	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
-		return dma_direct_ops.map_sg(dev, sg, nents, direction, attrs);
+		return dma_nommu_ops.map_sg(dev, sg, nents, direction, attrs);
 	else
 		return ppc_iommu_map_sg(dev, cell_get_iommu_table(dev), sg,
 					nents, device_to_mask(dev),
@@ -638,7 +638,7 @@ static void dma_fixed_unmap_sg(struct device *dev, struct scatterlist *sg,
 			       unsigned long attrs)
 {
 	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
-		dma_direct_ops.unmap_sg(dev, sg, nents, direction, attrs);
+		dma_nommu_ops.unmap_sg(dev, sg, nents, direction, attrs);
 	else
 		ppc_iommu_unmap_sg(cell_get_iommu_table(dev), sg, nents,
 				   direction, attrs);
@@ -661,8 +661,8 @@ static void cell_dma_dev_setup(struct device *dev)
 {
 	if (get_pci_dma_ops() == &dma_iommu_ops)
 		set_iommu_table_base(dev, cell_get_iommu_table(dev));
-	else if (get_pci_dma_ops() == &dma_direct_ops)
-		set_dma_offset(dev, cell_dma_direct_offset);
+	else if (get_pci_dma_ops() == &dma_nommu_ops)
+		set_dma_offset(dev, cell_dma_nommu_offset);
 	else
 		BUG();
 }
@@ -810,14 +810,14 @@ static int __init cell_iommu_init_disabled(void)
 	unsigned long base = 0, size;
 
 	/* When no iommu is present, we use direct DMA ops */
-	set_pci_dma_ops(&dma_direct_ops);
+	set_pci_dma_ops(&dma_nommu_ops);
 
 	/* First make sure all IOC translation is turned off */
 	cell_disable_iommus();
 
 	/* If we have no Axon, we set up the spider DMA magic offset */
 	if (of_find_node_by_name(NULL, "axon") == NULL)
-		cell_dma_direct_offset = SPIDER_DMA_OFFSET;
+		cell_dma_nommu_offset = SPIDER_DMA_OFFSET;
 
 	/* Now we need to check to see where the memory is mapped
 	 * in PCI space. We assume that all busses use the same dma
@@ -851,13 +851,13 @@ static int __init cell_iommu_init_disabled(void)
 		return -ENODEV;
 	}
 
-	cell_dma_direct_offset += base;
+	cell_dma_nommu_offset += base;
 
-	if (cell_dma_direct_offset != 0)
+	if (cell_dma_nommu_offset != 0)
 		cell_pci_controller_ops.dma_dev_setup = cell_pci_dma_dev_setup;
 
 	printk("iommu: disabled, direct DMA offset is 0x%lx\n",
-	       cell_dma_direct_offset);
+	       cell_dma_nommu_offset);
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index 7fec04de27fc..78b80cbd9768 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -186,7 +186,7 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev)
 	 */
 	if (dev->vendor == 0x1959 && dev->device == 0xa007 &&
 	    !firmware_has_feature(FW_FEATURE_LPAR)) {
-		dev->dev.dma_ops = &dma_direct_ops;
+		dev->dev.dma_ops = &dma_nommu_ops;
 		/*
 		 * Set the coherent DMA mask to prevent the iommu
 		 * being used unnecessarily
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index c4a3e93dc324..d0b8ae53660d 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -363,7 +363,7 @@ static int pcmcia_notify(struct notifier_block *nb, unsigned long action,
 		return 0;
 
 	/* We use the direct ops for localbus */
-	dev->dma_ops = &dma_direct_ops;
+	dev->dma_ops = &dma_nommu_ops;
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 749055553064..9582aeb1fe4c 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1850,7 +1850,7 @@ static int pnv_pci_ioda_dma_set_mask(struct pci_dev *pdev, u64 dma_mask)
 
 	if (bypass) {
 		dev_info(&pdev->dev, "Using 64-bit DMA iommu bypass\n");
-		set_dma_ops(&pdev->dev, &dma_direct_ops);
+		set_dma_ops(&pdev->dev, &dma_nommu_ops);
 	} else {
 		/*
 		 * If the device can't set the TCE bypass bit but still wants
@@ -1868,7 +1868,7 @@ static int pnv_pci_ioda_dma_set_mask(struct pci_dev *pdev, u64 dma_mask)
 				return rc;
 			/* 4GB offset bypasses 32-bit space */
 			set_dma_offset(&pdev->dev, (1ULL << 32));
-			set_dma_ops(&pdev->dev, &dma_direct_ops);
+			set_dma_ops(&pdev->dev, &dma_nommu_ops);
 		} else if (dma_mask >> 32 && dma_mask != DMA_BIT_MASK(64)) {
 			/*
 			 * Fail the request if a DMA mask between 32 and 64 bits
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 69921f72e2da..eaa11334fc8c 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1231,7 +1231,7 @@ static int dma_set_mask_pSeriesLP(struct device *dev, u64 dma_mask)
 			if (dma_offset != 0) {
 				dev_info(dev, "Using 64-bit direct DMA at offset %llx\n", dma_offset);
 				set_dma_offset(dev, dma_offset);
-				set_dma_ops(dev, &dma_direct_ops);
+				set_dma_ops(dev, &dma_nommu_ops);
 				ddw_enabled = true;
 			}
 		}
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index d86938260a86..49e04ec19238 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -618,7 +618,7 @@ static u64 vio_dma_get_required_mask(struct device *dev)
 static const struct dma_map_ops vio_dma_mapping_ops = {
 	.alloc             = vio_dma_iommu_alloc_coherent,
 	.free              = vio_dma_iommu_free_coherent,
-	.mmap		   = dma_direct_mmap_coherent,
+	.mmap		   = dma_nommu_mmap_coherent,
 	.map_sg            = vio_dma_iommu_map_sg,
 	.unmap_sg          = vio_dma_iommu_unmap_sg,
 	.map_page          = vio_dma_iommu_map_page,
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 3573d54b2770..a6198d4f0f03 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -402,7 +402,7 @@ static int dart_dma_set_mask(struct device *dev, u64 dma_mask)
 	 */
 	if (dart_device_on_pcie(dev) && dma_mask >= DMA_BIT_MASK(40)) {
 		dev_info(dev, "Using 64-bit DMA iommu bypass\n");
-		set_dma_ops(dev, &dma_direct_ops);
+		set_dma_ops(dev, &dma_nommu_ops);
 	} else {
 		dev_info(dev, "Using 32-bit DMA via iommu\n");
 		set_dma_ops(dev, &dma_iommu_ops);
@@ -446,7 +446,7 @@ void __init iommu_init_early_dart(struct pci_controller_ops *controller_ops)
 	controller_ops->dma_bus_setup = NULL;
 
 	/* Setup pci_dma ops */
-	set_pci_dma_ops(&dma_direct_ops);
+	set_pci_dma_ops(&dma_nommu_ops);
 }
 
 #ifdef CONFIG_PM
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 22d98057f773..e4d0133bbeeb 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -135,7 +135,7 @@ static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask)
 	 * mapping that allows addressing any RAM address from across PCI.
 	 */
 	if (dev_is_pci(dev) && dma_mask >= pci64_dma_offset * 2 - 1) {
-		set_dma_ops(dev, &dma_direct_ops);
+		set_dma_ops(dev, &dma_nommu_ops);
 		set_dma_offset(dev, pci64_dma_offset);
 	}
 
diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c
index 512a4897dbf6..7fd0bdc1436a 100644
--- a/drivers/misc/cxl/vphb.c
+++ b/drivers/misc/cxl/vphb.c
@@ -54,7 +54,7 @@ static bool cxl_pci_enable_device_hook(struct pci_dev *dev)
 		return false;
 	}
 
-	set_dma_ops(&dev->dev, &dma_direct_ops);
+	set_dma_ops(&dev->dev, &dma_nommu_ops);
 	set_dma_offset(&dev->dev, PAGE_OFFSET);
 
 	return _cxl_pci_associate_default_context(dev, afu);
-- 
2.14.2


From - Thu Nov 08 21:40:51 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: [PATCH 25/33] dma-direct: add dma address sanity checks
Date: Wed, 10 Jan 2018 09:00:19 +0100
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Roughly based on the x86 pci-nommu implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/dma-direct.c | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 12ea9653781b..32fd4d9e4c47 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -9,6 +9,23 @@
 #include <linux/scatterlist.h>
 #include <linux/pfn.h>
 
+#define DIRECT_MAPPING_ERROR		0
+
+static bool
+check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
+		const char *caller)
+{
+	if (unlikely(dev && !dma_capable(dev, dma_addr, size))) {
+		if (*dev->dma_mask >= DMA_BIT_MASK(32)) {
+			dev_err(dev,
+				"%s: overflow %pad+%zu of device mask %llx\n",
+				caller, &dma_addr, size, *dev->dma_mask);
+		}
+		return false;
+	}
+	return true;
+}
+
 static void *dma_direct_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
@@ -31,7 +48,11 @@ static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
 		unsigned long offset, size_t size, enum dma_data_direction dir,
 		unsigned long attrs)
 {
-	return phys_to_dma(dev, page_to_phys(page)) + offset;
+	dma_addr_t dma_addr = phys_to_dma(dev, page_to_phys(page)) + offset;
+
+	if (!check_addr(dev, dma_addr, size, __func__))
+		return DIRECT_MAPPING_ERROR;
+	return dma_addr;
 }
 
 static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
@@ -44,16 +65,24 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 		BUG_ON(!sg_page(sg));
 
 		sg_dma_address(sg) = phys_to_dma(dev, sg_phys(sg));
+		if (!check_addr(dev, sg_dma_address(sg), sg->length, __func__))
+			return 0;
 		sg_dma_len(sg) = sg->length;
 	}
 
 	return nents;
 }
 
+static int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+	return dma_addr == DIRECT_MAPPING_ERROR;
+}
+
 const struct dma_map_ops dma_direct_ops = {
 	.alloc			= dma_direct_alloc,
 	.free			= dma_direct_free,
 	.map_page		= dma_direct_map_page,
 	.map_sg			= dma_direct_map_sg,
+	.mapping_error		= dma_direct_mapping_error,
 };
 EXPORT_SYMBOL(dma_direct_ops);
-- 
2.14.2



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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22040>

This frees the dma_direct_* namespace for a generic implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/microblaze/include/asm/dma-mapping.h |  4 +--
 arch/microblaze/kernel/dma.c              | 48 +++++++++++++++----------------
 2 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 6b9ea39405b8..add50c1373bf 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -18,11 +18,11 @@
 /*
  * Available generic sets of operations
  */
-extern const struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_nommu_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	return &dma_direct_ops;
+	return &dma_nommu_ops;
 }
 
 #endif	/* _ASM_MICROBLAZE_DMA_MAPPING_H */
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 990bf9ea0ec6..450803e5731a 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -17,7 +17,7 @@
 
 #define NOT_COHERENT_CACHE
 
-static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
+static void *dma_nommu_alloc_coherent(struct device *dev, size_t size,
 				       dma_addr_t *dma_handle, gfp_t flag,
 				       unsigned long attrs)
 {
@@ -42,7 +42,7 @@ static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 #endif
 }
 
-static void dma_direct_free_coherent(struct device *dev, size_t size,
+static void dma_nommu_free_coherent(struct device *dev, size_t size,
 				     void *vaddr, dma_addr_t dma_handle,
 				     unsigned long attrs)
 {
@@ -69,7 +69,7 @@ static inline void __dma_sync(unsigned long paddr,
 	}
 }
 
-static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
+static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl,
 			     int nents, enum dma_data_direction direction,
 			     unsigned long attrs)
 {
@@ -89,12 +89,12 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
-static int dma_direct_dma_supported(struct device *dev, u64 mask)
+static int dma_nommu_dma_supported(struct device *dev, u64 mask)
 {
 	return 1;
 }
 
-static inline dma_addr_t dma_direct_map_page(struct device *dev,
+static inline dma_addr_t dma_nommu_map_page(struct device *dev,
 					     struct page *page,
 					     unsigned long offset,
 					     size_t size,
@@ -106,7 +106,7 @@ static inline dma_addr_t dma_direct_map_page(struct device *dev,
 	return page_to_phys(page) + offset;
 }
 
-static inline void dma_direct_unmap_page(struct device *dev,
+static inline void dma_nommu_unmap_page(struct device *dev,
 					 dma_addr_t dma_address,
 					 size_t size,
 					 enum dma_data_direction direction,
@@ -122,7 +122,7 @@ static inline void dma_direct_unmap_page(struct device *dev,
 }
 
 static inline void
-dma_direct_sync_single_for_cpu(struct device *dev,
+dma_nommu_sync_single_for_cpu(struct device *dev,
 			       dma_addr_t dma_handle, size_t size,
 			       enum dma_data_direction direction)
 {
@@ -136,7 +136,7 @@ dma_direct_sync_single_for_cpu(struct device *dev,
 }
 
 static inline void
-dma_direct_sync_single_for_device(struct device *dev,
+dma_nommu_sync_single_for_device(struct device *dev,
 				  dma_addr_t dma_handle, size_t size,
 				  enum dma_data_direction direction)
 {
@@ -150,7 +150,7 @@ dma_direct_sync_single_for_device(struct device *dev,
 }
 
 static inline void
-dma_direct_sync_sg_for_cpu(struct device *dev,
+dma_nommu_sync_sg_for_cpu(struct device *dev,
 			   struct scatterlist *sgl, int nents,
 			   enum dma_data_direction direction)
 {
@@ -164,7 +164,7 @@ dma_direct_sync_sg_for_cpu(struct device *dev,
 }
 
 static inline void
-dma_direct_sync_sg_for_device(struct device *dev,
+dma_nommu_sync_sg_for_device(struct device *dev,
 			      struct scatterlist *sgl, int nents,
 			      enum dma_data_direction direction)
 {
@@ -178,7 +178,7 @@ dma_direct_sync_sg_for_device(struct device *dev,
 }
 
 static
-int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
+int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 			     void *cpu_addr, dma_addr_t handle, size_t size,
 			     unsigned long attrs)
 {
@@ -204,20 +204,20 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 #endif
 }
 
-const struct dma_map_ops dma_direct_ops = {
-	.alloc		= dma_direct_alloc_coherent,
-	.free		= dma_direct_free_coherent,
-	.mmap		= dma_direct_mmap_coherent,
-	.map_sg		= dma_direct_map_sg,
-	.dma_supported	= dma_direct_dma_supported,
-	.map_page	= dma_direct_map_page,
-	.unmap_page	= dma_direct_unmap_page,
-	.sync_single_for_cpu		= dma_direct_sync_single_for_cpu,
-	.sync_single_for_device		= dma_direct_sync_single_for_device,
-	.sync_sg_for_cpu		= dma_direct_sync_sg_for_cpu,
-	.sync_sg_for_device		= dma_direct_sync_sg_for_device,
+const struct dma_map_ops dma_nommu_ops = {
+	.alloc			= dma_nommu_alloc_coherent,
+	.free			= dma_nommu_free_coherent,
+	.mmap			= dma_nommu_mmap_coherent,
+	.map_sg			= dma_nommu_map_sg,
+	.dma_supported		= dma_nommu_dma_supported,
+	.map_page		= dma_nommu_map_page,
+	.unmap_page		= dma_nommu_unmap_page,
+	.sync_single_for_cpu	= dma_nommu_sync_single_for_cpu,
+	.sync_single_for_device	= dma_nommu_sync_single_for_device,
+	.sync_sg_for_cpu	= dma_nommu_sync_sg_for_cpu,
+	.sync_sg_for_device	= dma_nommu_sync_sg_for_device,
 };
-EXPORT_SYMBOL(dma_direct_ops);
+EXPORT_SYMBOL(dma_nommu_ops);
 
 /* Number of entries preallocated for DMA-API debugging */
 #define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-- 
2.14.2


From - Thu Nov 08 21:40:51 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 27/33] dma-direct: use node local allocations for coherent memory
Date: Wed, 10 Jan 2018 09:00:21 +0100
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Approved: news@gmane.org
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To preserve the x86 behavior.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 lib/dma-direct.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index a9ae98be7af3..f04a424f91fa 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -38,7 +38,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 	if (gfpflags_allow_blocking(gfp))
 		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
 	if (!page)
-		page = alloc_pages(gfp, page_order);
+		page = alloc_pages_node(dev_to_node(dev), gfp, page_order);
 	if (!page)
 		return NULL;
 
-- 
2.14.2


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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 16/33] microblaze: remove dma_nommu_dma_supported
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22042>

Always returning 1 is the same behavior as not supplying a method at all.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/microblaze/kernel/dma.c | 6 ------
 arch/parisc/kernel/pci-dma.c | 7 -------
 2 files changed, 13 deletions(-)

diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 450803e5731a..b45d8f8967af 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -89,11 +89,6 @@ static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
-static int dma_nommu_dma_supported(struct device *dev, u64 mask)
-{
-	return 1;
-}
-
 static inline dma_addr_t dma_nommu_map_page(struct device *dev,
 					     struct page *page,
 					     unsigned long offset,
@@ -209,7 +204,6 @@ const struct dma_map_ops dma_nommu_ops = {
 	.free			= dma_nommu_free_coherent,
 	.mmap			= dma_nommu_mmap_coherent,
 	.map_sg			= dma_nommu_map_sg,
-	.dma_supported		= dma_nommu_dma_supported,
 	.map_page		= dma_nommu_map_page,
 	.unmap_page		= dma_nommu_unmap_page,
 	.sync_single_for_cpu	= dma_nommu_sync_single_for_cpu,
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index c0dfd892f70c..91bc0cac03a1 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -75,11 +75,6 @@ void dump_resmap(void)
 static inline void dump_resmap(void) {;}
 #endif
 
-static int pa11_dma_supported( struct device *dev, u64 mask)
-{
-	return 1;
-}
-
 static inline int map_pte_uncached(pte_t * pte,
 		unsigned long vaddr,
 		unsigned long size, unsigned long *paddr_ptr)
@@ -579,7 +574,6 @@ static void pa11_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 }
 
 const struct dma_map_ops pcxl_dma_ops = {
-	.dma_supported =	pa11_dma_supported,
 	.alloc =		pa11_dma_alloc,
 	.free =			pa11_dma_free,
 	.map_page =		pa11_dma_map_page,
@@ -616,7 +610,6 @@ static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
 }
 
 const struct dma_map_ops pcx_dma_ops = {
-	.dma_supported =	pa11_dma_supported,
 	.alloc =		pcx_dma_alloc,
 	.free =			pcx_dma_free,
 	.map_page =		pa11_dma_map_page,
-- 
2.14.2


From - Thu Nov 08 21:40:51 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 30/33] dma-direct: make dma_direct_{alloc,free} available to other implementations
Date: Wed, 10 Jan 2018 09:00:24 +0100
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So that they don't need to indirect through the operation vector.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
---
 arch/arm/mm/dma-mapping-nommu.c | 9 +++------
 include/linux/dma-direct.h      | 5 +++++
 lib/dma-direct.c                | 6 +++---
 3 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index 4d8042521e89..619f24a42d09 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -11,7 +11,7 @@
 
 #include <linux/export.h>
 #include <linux/mm.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
 
 #include <asm/cachetype.h>
@@ -39,7 +39,6 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
 				 unsigned long attrs)
 
 {
-	const struct dma_map_ops *ops = &dma_direct_ops;
 	void *ret;
 
 	/*
@@ -48,7 +47,7 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
 	 */
 
 	if (attrs & DMA_ATTR_NON_CONSISTENT)
-		return ops->alloc(dev, size, dma_handle, gfp, attrs);
+		return dma_direct_alloc(dev, size, dma_handle, gfp, attrs);
 
 	ret = dma_alloc_from_global_coherent(size, dma_handle);
 
@@ -70,10 +69,8 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
 			       void *cpu_addr, dma_addr_t dma_addr,
 			       unsigned long attrs)
 {
-	const struct dma_map_ops *ops = &dma_direct_ops;
-
 	if (attrs & DMA_ATTR_NON_CONSISTENT) {
-		ops->free(dev, size, cpu_addr, dma_addr, attrs);
+		dma_direct_free(dev, size, cpu_addr, dma_addr, attrs);
 	} else {
 		int ret = dma_release_from_global_coherent(get_order(size),
 							   cpu_addr);
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 10e924b7cba7..4788bf0bf683 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -38,4 +38,9 @@ static inline void dma_mark_clean(void *addr, size_t size)
 }
 #endif /* CONFIG_ARCH_HAS_DMA_MARK_CLEAN */
 
+void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs);
+void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t dma_addr, unsigned long attrs);
+
 #endif /* _LINUX_DMA_DIRECT_H */
diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 4e43c2bb7f5f..784a68dfdbe3 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -40,8 +40,8 @@ static bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size)
 	return phys_to_dma(dev, phys) + size - 1 <= dev->coherent_dma_mask;
 }
 
-static void *dma_direct_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	int page_order = get_order(size);
@@ -84,7 +84,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 	return page_address(page);
 }
 
-static void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
+void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		dma_addr_t dma_addr, unsigned long attrs)
 {
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
-- 
2.14.2



From - Thu Nov 08 21:40:51 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 29/33] dma-direct: retry allocations using GFP_DMA for small masks
Date: Wed, 10 Jan 2018 09:00:23 +0100
Lines: 67
Approved: news@gmane.org
Message-ID: <20180110080027.13879-30-hch@lst.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/56255>

If an attempt to allocate memory succeeded, but isn't inside the
supported DMA mask, retry the allocation with GFP_DMA set as a
last resort.

Based on the x86 code, but an off by one error in what is now
dma_coherent_ok has been fixed vs the x86 code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/dma-direct.c | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 8f76032ebc3c..4e43c2bb7f5f 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -35,6 +35,11 @@ check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
 	return true;
 }
 
+static bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size)
+{
+	return phys_to_dma(dev, phys) + size - 1 <= dev->coherent_dma_mask;
+}
+
 static void *dma_direct_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
@@ -48,11 +53,29 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 	if (dev->coherent_dma_mask <= DMA_BIT_MASK(32) && !(gfp & GFP_DMA))
 		gfp |= GFP_DMA32;
 
+again:
 	/* CMA can be used only in the context which permits sleeping */
-	if (gfpflags_allow_blocking(gfp))
+	if (gfpflags_allow_blocking(gfp)) {
 		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
+		if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {
+			dma_release_from_contiguous(dev, page, count);
+			page = NULL;
+		}
+	}
 	if (!page)
 		page = alloc_pages_node(dev_to_node(dev), gfp, page_order);
+
+	if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {
+		__free_pages(page, page_order);
+		page = NULL;
+
+		if (dev->coherent_dma_mask < DMA_BIT_MASK(32) &&
+		    !(gfp & GFP_DMA)) {
+			gfp = (gfp & ~GFP_DMA32) | GFP_DMA;
+			goto again;
+		}
+	}
+
 	if (!page)
 		return NULL;
 
-- 
2.14.2

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From - Thu Nov 08 21:40:51 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel.iommu,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 33/33] h8300: use dma-direct
Date: Wed, 10 Jan 2018 09:00:27 +0100
Lines: 149
Approved: news@gmane.org
Message-ID: <20180110080027.13879-34-hch@lst.de>
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To: iommu@lists.linux-foundation.org
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Replace the bare-bones h8300 direct dma mapping implementation with
the fully featured generic dma-direct one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/h8300/Kconfig                   |  1 +
 arch/h8300/include/asm/Kbuild        |  1 +
 arch/h8300/include/asm/dma-mapping.h | 12 -------
 arch/h8300/kernel/Makefile           |  2 +-
 arch/h8300/kernel/dma.c              | 66 ------------------------------------
 5 files changed, 3 insertions(+), 79 deletions(-)
 delete mode 100644 arch/h8300/include/asm/dma-mapping.h
 delete mode 100644 arch/h8300/kernel/dma.c

diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index f8d3fde08190..091d6d04b5e5 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -23,6 +23,7 @@ config H8300
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_HASH
 	select CPU_NO_EFFICIENT_FFS
+	select DMA_DIRECT_OPS
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
index bc077491d299..642752c94306 100644
--- a/arch/h8300/include/asm/Kbuild
+++ b/arch/h8300/include/asm/Kbuild
@@ -9,6 +9,7 @@ generic-y += delay.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
deleted file mode 100644
index 21bb1fc3a6f1..000000000000
--- a/arch/h8300/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _H8300_DMA_MAPPING_H
-#define _H8300_DMA_MAPPING_H
-
-extern const struct dma_map_ops h8300_dma_map_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &h8300_dma_map_ops;
-}
-
-#endif
diff --git a/arch/h8300/kernel/Makefile b/arch/h8300/kernel/Makefile
index b62e830525c6..307aa51576dd 100644
--- a/arch/h8300/kernel/Makefile
+++ b/arch/h8300/kernel/Makefile
@@ -7,7 +7,7 @@ extra-y := vmlinux.lds
 
 obj-y := process.o traps.o ptrace.o \
 	 signal.o setup.o syscalls.o \
-	 irq.o entry.o dma.o
+	 irq.o entry.o
 
 obj-$(CONFIG_ROMKERNEL) += head_rom.o
 obj-$(CONFIG_RAMKERNEL) += head_ram.o
diff --git a/arch/h8300/kernel/dma.c b/arch/h8300/kernel/dma.c
deleted file mode 100644
index d44ba5db4ac3..000000000000
--- a/arch/h8300/kernel/dma.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-#include <linux/dma-mapping.h>
-#include <linux/kernel.h>
-#include <linux/scatterlist.h>
-#include <linux/module.h>
-#include <asm/pgalloc.h>
-
-static void *dma_alloc(struct device *dev, size_t size,
-		       dma_addr_t *dma_handle, gfp_t gfp,
-		       unsigned long attrs)
-{
-	void *ret;
-
-	if (dev == NULL || (*dev->dma_mask < 0xffffffff))
-		gfp |= GFP_DMA;
-	ret = (void *)__get_free_pages(gfp, get_order(size));
-
-	if (ret != NULL) {
-		memset(ret, 0, size);
-		*dma_handle = virt_to_phys(ret);
-	}
-	return ret;
-}
-
-static void dma_free(struct device *dev, size_t size,
-		     void *vaddr, dma_addr_t dma_handle,
-		     unsigned long attrs)
-
-{
-	free_pages((unsigned long)vaddr, get_order(size));
-}
-
-static dma_addr_t map_page(struct device *dev, struct page *page,
-				  unsigned long offset, size_t size,
-				  enum dma_data_direction direction,
-				  unsigned long attrs)
-{
-	return page_to_phys(page) + offset;
-}
-
-static int map_sg(struct device *dev, struct scatterlist *sgl,
-		  int nents, enum dma_data_direction direction,
-		  unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sgl, sg, nents, i) {
-		sg->dma_address = sg_phys(sg);
-	}
-
-	return nents;
-}
-
-const struct dma_map_ops h8300_dma_map_ops = {
-	.alloc = dma_alloc,
-	.free = dma_free,
-	.map_page = map_page,
-	.map_sg = map_sg,
-};
-EXPORT_SYMBOL(h8300_dma_map_ops);
-- 
2.14.2

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From - Thu Nov 08 21:40:51 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 18/33] s390: move s390_pci_dma_ops to asm/pci_dma.h
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Xref: news.gmane.org gmane.linux.kernel.iommu:22046 gmane.linux.ports.mips.general:63212 gmane.linux.ports.ia64:28525 gmane.linux.ports.sh.devel:56257 gmane.linux.ports.sparc:27208 gmane.linux.kernel.cross-arch:41270 gmane.linux.ports.hexagon:1526 gmane.linux.kernel.arc:3310 gmane.linux.kernel.metag:1602 gmane.linux.ports.arm.kernel:625025 gmane.linux.ports.parisc:28201 gmane.linux.kernel:2662733 gmane.linux.ports.alpha:4700 gmane.linux.ports.ppc64.devel:151849
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22046>

This is not needed in drivers, so move it to a private header.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/s390/include/asm/dma-mapping.h | 2 --
 arch/s390/include/asm/pci_dma.h     | 3 +++
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 2ec7240c1ada..bdc2455483f6 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -9,8 +9,6 @@
 #include <linux/dma-debug.h>
 #include <linux/io.h>
 
-extern const struct dma_map_ops s390_pci_dma_ops;
-
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &dma_noop_ops;
diff --git a/arch/s390/include/asm/pci_dma.h b/arch/s390/include/asm/pci_dma.h
index e8d9161fa17a..419fac7a62c0 100644
--- a/arch/s390/include/asm/pci_dma.h
+++ b/arch/s390/include/asm/pci_dma.h
@@ -201,4 +201,7 @@ void dma_cleanup_tables(unsigned long *);
 unsigned long *dma_walk_cpu_trans(unsigned long *rto, dma_addr_t dma_addr);
 void dma_update_cpu_trans(unsigned long *entry, void *page_addr, int flags);
 
+extern const struct dma_map_ops s390_pci_dma_ops;
+
+
 #endif
-- 
2.14.2


From - Thu Nov 08 21:40:51 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 20/33] dma-mapping: clear harmful GFP_* flags in common code
Date: Wed, 10 Jan 2018 09:00:14 +0100
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Xref: news.gmane.org gmane.linux.kernel.iommu:22047 gmane.linux.ports.mips.general:63213 gmane.linux.ports.ia64:28526 gmane.linux.ports.sh.devel:56258 gmane.linux.ports.sparc:27209 gmane.linux.kernel.cross-arch:41271 gmane.linux.ports.hexagon:1527 gmane.linux.kernel.arc:3311 gmane.linux.kernel.metag:1603 gmane.linux.ports.arm.kernel:625026 gmane.linux.ports.parisc:28202 gmane.linux.kernel:2662734 gmane.linux.ports.alpha:4701 gmane.linux.ports.ppc64.devel:151850
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22047>

Lift the code from x86 so that we behave consistently.  In the future we
should probably warn if any of these is set.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Acked-by: Jesper Nilsson <jesper.nilsson-VrBV9hrLPhE@public.gmane.org>
Acked-by: Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org> [m68k]
---
 arch/cris/arch-v32/drivers/pci/dma.c      | 3 ---
 arch/h8300/kernel/dma.c                   | 3 ---
 arch/m68k/kernel/dma.c                    | 2 --
 arch/mips/cavium-octeon/dma-octeon.c      | 3 ---
 arch/mips/loongson64/common/dma-swiotlb.c | 3 ---
 arch/mips/mm/dma-default.c                | 3 ---
 arch/mips/netlogic/common/nlm-dma.c       | 3 ---
 arch/mn10300/mm/dma-alloc.c               | 3 ---
 arch/nios2/mm/dma-mapping.c               | 3 ---
 arch/powerpc/kernel/dma.c                 | 3 ---
 arch/x86/kernel/pci-dma.c                 | 2 --
 include/linux/dma-mapping.h               | 7 +++++++
 12 files changed, 7 insertions(+), 31 deletions(-)

diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
index dbbd3816cc0b..8c3802244ef3 100644
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ b/arch/cris/arch-v32/drivers/pci/dma.c
@@ -22,9 +22,6 @@ static void *v32_dma_alloc(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
 	if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff))
 		gfp |= GFP_DMA;
 
diff --git a/arch/h8300/kernel/dma.c b/arch/h8300/kernel/dma.c
index 225dd0a188dc..d44ba5db4ac3 100644
--- a/arch/h8300/kernel/dma.c
+++ b/arch/h8300/kernel/dma.c
@@ -16,9 +16,6 @@ static void *dma_alloc(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
 	if (dev == NULL || (*dev->dma_mask < 0xffffffff))
 		gfp |= GFP_DMA;
 	ret = (void *)__get_free_pages(gfp, get_order(size));
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index 87ef73a93856..c01b9b8f97bf 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -76,8 +76,6 @@ static void *m68k_dma_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
 
 	if (dev == NULL || (*dev->dma_mask < 0xffffffff))
 		gfp |= GFP_DMA;
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index c64bd87f0b6e..5baf79fce643 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -161,9 +161,6 @@ static void *octeon_dma_alloc_coherent(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
-
 	if (IS_ENABLED(CONFIG_ZONE_DMA) && dev == NULL)
 		gfp |= __GFP_DMA;
 	else if (IS_ENABLED(CONFIG_ZONE_DMA) &&
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index ef07740cee61..15388c24a504 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -15,9 +15,6 @@ static void *loongson_dma_alloc_coherent(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
-
 	if ((IS_ENABLED(CONFIG_ISA) && dev == NULL) ||
 	    (IS_ENABLED(CONFIG_ZONE_DMA) &&
 	     dev->coherent_dma_mask < DMA_BIT_MASK(32)))
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index e3e94d05f0fd..237532e89919 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -93,9 +93,6 @@ static gfp_t massage_gfp_flags(const struct device *dev, gfp_t gfp)
 {
 	gfp_t dma_flag;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
-
 #ifdef CONFIG_ISA
 	if (dev == NULL)
 		dma_flag = __GFP_DMA;
diff --git a/arch/mips/netlogic/common/nlm-dma.c b/arch/mips/netlogic/common/nlm-dma.c
index 0ec9d9da6d51..49c975b6aa28 100644
--- a/arch/mips/netlogic/common/nlm-dma.c
+++ b/arch/mips/netlogic/common/nlm-dma.c
@@ -47,9 +47,6 @@ static char *nlm_swiotlb;
 static void *nlm_dma_alloc_coherent(struct device *dev, size_t size,
 	dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
-
 #ifdef CONFIG_ZONE_DMA32
 	if (dev->coherent_dma_mask <= DMA_BIT_MASK(32))
 		gfp |= __GFP_DMA32;
diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c
index 86108d2496b3..e3910d4db102 100644
--- a/arch/mn10300/mm/dma-alloc.c
+++ b/arch/mn10300/mm/dma-alloc.c
@@ -37,9 +37,6 @@ static void *mn10300_dma_alloc(struct device *dev, size_t size,
 		goto done;
 	}
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
 	if (dev == NULL || dev->coherent_dma_mask < 0xffffffff)
 		gfp |= GFP_DMA;
 
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index 7040c1adbb5e..4be815519dd4 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -63,9 +63,6 @@ static void *nios2_dma_alloc(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
 	/* optimized page clearing */
 	gfp |= __GFP_ZERO;
 
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 6d5d04ccf3b4..76079841d3d0 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -105,9 +105,6 @@ void *__dma_nommu_alloc_coherent(struct device *dev, size_t size,
 	};
 #endif /* CONFIG_FSL_SOC */
 
-	/* ignore region specifiers */
-	flag  &= ~(__GFP_HIGHMEM);
-
 	page = alloc_pages_node(node, flag, get_order(size));
 	if (page == NULL)
 		return NULL;
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 8439e6de6156..61a8f1cb3829 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -87,7 +87,6 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 
 	dma_mask = dma_alloc_coherent_mask(dev, flag);
 
-	flag &= ~__GFP_ZERO;
 again:
 	page = NULL;
 	/* CMA can be used only in the context which permits sleeping */
@@ -139,7 +138,6 @@ bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp)
 	if (!*dev)
 		*dev = &x86_dma_fallback_dev;
 
-	*gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
 	*gfp = dma_alloc_coherent_gfp_flags(*dev, *gfp);
 
 	if (!is_device_dma_capable(*dev))
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 9f28b2fa329e..88bcb1a8211d 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -518,6 +518,13 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
 	if (dma_alloc_from_dev_coherent(dev, size, dma_handle, &cpu_addr))
 		return cpu_addr;
 
+	/*
+	 * Let the implementation decide on the zone to allocate from, and
+	 * decide on the way of zeroing the memory given that the memory
+	 * returned should always be zeroed.
+	 */
+	flag &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM | __GFP_ZERO);
+
 	if (!arch_dma_alloc_attrs(&dev, &flag))
 		return NULL;
 	if (!ops->alloc)
-- 
2.14.2


From - Thu Nov 08 21:40:51 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 32/33] cris: use dma-direct
Date: Wed, 10 Jan 2018 09:00:26 +0100
Lines: 177
Approved: news@gmane.org
Message-ID: <20180110080027.13879-33-hch@lst.de>
References: <20180110080027.13879-1-hch@lst.de>
NNTP-Posting-Host: blaine.gmane.org
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Cc: Konrad Rzeszutek Wilk <konrad@darnok.org>,
        linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org,
        linux-cris-kernel@axis.com, linux-hexagon@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
        linux-metag@vger.kernel.org, Michal Simek <monstr@monstr.eu>,
        linux-mips@linux-mips.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, patches@groups.riscv.org,
        linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
        sparclinux@vger.kernel.org, Guan Xuetao <gxt@mprc.pku.edu.cn>,
        x86@kernel.org, linux-arch@vger.kernel.org,
        linux-kernel@vger.kernel.org
To: iommu@lists.linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/56259>

cris currently has an incomplete direct mapping dma_map_ops implementation
is PCI support is enabled.  Replace it with the fully feature generic
dma-direct implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
---
 arch/cris/Kconfig                       |  4 ++
 arch/cris/arch-v32/drivers/pci/Makefile |  2 +-
 arch/cris/arch-v32/drivers/pci/dma.c    | 77 ---------------------------------
 arch/cris/include/asm/Kbuild            |  1 +
 arch/cris/include/asm/dma-mapping.h     | 20 ---------
 5 files changed, 6 insertions(+), 98 deletions(-)
 delete mode 100644 arch/cris/arch-v32/drivers/pci/dma.c
 delete mode 100644 arch/cris/include/asm/dma-mapping.h

diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 54d3f426763b..cd5a0865c97f 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -33,6 +33,9 @@ config GENERIC_CALIBRATE_DELAY
 config NO_IOPORT_MAP
 	def_bool y if !PCI
 
+config NO_DMA
+	def_bool y if !PCI
+
 config FORCE_MAX_ZONEORDER
 	int
 	default 6
@@ -72,6 +75,7 @@ config CRIS
 	select GENERIC_SCHED_CLOCK if ETRAX_ARCH_V32
 	select HAVE_DEBUG_BUGVERBOSE if ETRAX_ARCH_V32
 	select HAVE_NMI
+	select DMA_DIRECT_OPS if PCI
 
 config HZ
 	int
diff --git a/arch/cris/arch-v32/drivers/pci/Makefile b/arch/cris/arch-v32/drivers/pci/Makefile
index bff7482f2444..93c8be6170b1 100644
--- a/arch/cris/arch-v32/drivers/pci/Makefile
+++ b/arch/cris/arch-v32/drivers/pci/Makefile
@@ -2,4 +2,4 @@
 # Makefile for Etrax cardbus driver
 #
 
-obj-$(CONFIG_ETRAX_CARDBUS)        += bios.o dma.o
+obj-$(CONFIG_ETRAX_CARDBUS)        += bios.o
diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
deleted file mode 100644
index 8c3802244ef3..000000000000
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ /dev/null
@@ -1,77 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Dynamic DMA mapping support.
- *
- * On cris there is no hardware dynamic DMA address translation,
- * so consistent alloc/free are merely page allocation/freeing.
- * The rest of the dynamic DMA mapping interface is implemented
- * in asm/pci.h.
- *
- * Borrowed from i386.
- */
-
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/pci.h>
-#include <linux/gfp.h>
-#include <asm/io.h>
-
-static void *v32_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
-{
-	void *ret;
-
-	if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff))
-		gfp |= GFP_DMA;
-
-	ret = (void *)__get_free_pages(gfp,  get_order(size));
-
-	if (ret != NULL) {
-		memset(ret, 0, size);
-		*dma_handle = virt_to_phys(ret);
-	}
-	return ret;
-}
-
-static void v32_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t dma_handle, unsigned long attrs)
-{
-	free_pages((unsigned long)vaddr, get_order(size));
-}
-
-static inline dma_addr_t v32_dma_map_page(struct device *dev,
-		struct page *page, unsigned long offset, size_t size,
-		enum dma_data_direction direction, unsigned long attrs)
-{
-	return page_to_phys(page) + offset;
-}
-
-static inline int v32_dma_map_sg(struct device *dev, struct scatterlist *sg,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	printk("Map sg\n");
-	return nents;
-}
-
-static inline int v32_dma_supported(struct device *dev, u64 mask)
-{
-        /*
-         * we fall back to GFP_DMA when the mask isn't all 1s,
-         * so we can't guarantee allocations that must be
-         * within a tighter range than GFP_DMA..
-         */
-        if (mask < 0x00ffffff)
-                return 0;
-	return 1;
-}
-
-const struct dma_map_ops v32_dma_ops = {
-	.alloc			= v32_dma_alloc,
-	.free			= v32_dma_free,
-	.map_page		= v32_dma_map_page,
-	.map_sg                 = v32_dma_map_sg,
-	.dma_supported		= v32_dma_supported,
-};
-EXPORT_SYMBOL(v32_dma_ops);
diff --git a/arch/cris/include/asm/Kbuild b/arch/cris/include/asm/Kbuild
index 460349cb147f..8cf45ac30c1b 100644
--- a/arch/cris/include/asm/Kbuild
+++ b/arch/cris/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += cmpxchg.h
 generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
deleted file mode 100644
index 1553bdb30a0c..000000000000
--- a/arch/cris/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_CRIS_DMA_MAPPING_H
-#define _ASM_CRIS_DMA_MAPPING_H
-
-#ifdef CONFIG_PCI
-extern const struct dma_map_ops v32_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &v32_dma_ops;
-}
-#else
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	BUG();
-	return NULL;
-}
-#endif
-
-#endif
-- 
2.14.2

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From - Thu Nov 08 21:40:51 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 31/33] dma-direct: reject too small dma masks
Date: Wed, 10 Jan 2018 09:00:25 +0100
Lines: 58
Approved: news@gmane.org
Message-ID: <20180110080027.13879-32-hch@lst.de>
References: <20180110080027.13879-1-hch@lst.de>
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Cc: Konrad Rzeszutek Wilk <konrad@darnok.org>,
        linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org,
        linux-cris-kernel@axis.com, linux-hexagon@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
        linux-metag@vger.kernel.org, Michal Simek <monstr@monstr.eu>,
        linux-mips@linux-mips.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, patches@groups.riscv.org,
        linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
        sparclinux@vger.kernel.org, Guan Xuetao <gxt@mprc.pku.edu.cn>,
        x86@kernel.org, linux-arch@vger.kernel.org,
        linux-kernel@vger.kernel.org
To: iommu@lists.linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2662736>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 include/linux/dma-direct.h |  1 +
 lib/dma-direct.c           | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 4788bf0bf683..bcdb1a3e4b1f 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -42,5 +42,6 @@ void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 		gfp_t gfp, unsigned long attrs);
 void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		dma_addr_t dma_addr, unsigned long attrs);
+int dma_direct_supported(struct device *dev, u64 mask);
 
 #endif /* _LINUX_DMA_DIRECT_H */
diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 784a68dfdbe3..40b1f92f2214 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -122,6 +122,24 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
+int dma_direct_supported(struct device *dev, u64 mask)
+{
+#ifdef CONFIG_ZONE_DMA
+	if (mask < DMA_BIT_MASK(ARCH_ZONE_DMA_BITS))
+		return 0;
+#else
+	/*
+	 * Because 32-bit DMA masks are so common we expect every architecture
+	 * to be able to satisfy them - either by not supporting more physical
+	 * memory, or by providing a ZONE_DMA32.  If neither is the case, the
+	 * architecture needs to use an IOMMU instead of the direct mapping.
+	 */
+	if (mask < DMA_BIT_MASK(32))
+		return 0;
+#endif
+	return 1;
+}
+
 static int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
 	return dma_addr == DIRECT_MAPPING_ERROR;
@@ -132,6 +150,7 @@ const struct dma_map_ops dma_direct_ops = {
 	.free			= dma_direct_free,
 	.map_page		= dma_direct_map_page,
 	.map_sg			= dma_direct_map_sg,
+	.dma_supported		= dma_direct_supported,
 	.mapping_error		= dma_direct_mapping_error,
 };
 EXPORT_SYMBOL(dma_direct_ops);
-- 
2.14.2



From - Thu Nov 08 21:40:51 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 28/33] dma-direct: add support for allocation from ZONE_DMA and ZONE_DMA32
Date: Wed, 10 Jan 2018 09:00:22 +0100
Lines: 53
Approved: news@gmane.org
Message-ID: <20180110080027.13879-29-hch@lst.de>
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To: iommu@lists.linux-foundation.org
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This allows to dip into zones for lower memory if they are available.
If one of the zones is not available the corresponding GFP_* flag
will evaluate to 0 so they won't change anything.  We provide an
arch tunable for those architectures that do not use GFP_DMA for
the lowest 24-bits, given that there are a few.

Roughly based on the x86 code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/dma-direct.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index f04a424f91fa..8f76032ebc3c 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -12,6 +12,14 @@
 
 #define DIRECT_MAPPING_ERROR		0
 
+/*
+ * Most architectures use ZONE_DMA for the first 16 Megabytes, but
+ * some use it for entirely different regions:
+ */
+#ifndef ARCH_ZONE_DMA_BITS
+#define ARCH_ZONE_DMA_BITS 24
+#endif
+
 static bool
 check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
 		const char *caller)
@@ -34,6 +42,12 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 	int page_order = get_order(size);
 	struct page *page = NULL;
 
+	/* GFP_DMA32 and GFP_DMA are no ops without the corresponding zones: */
+	if (dev->coherent_dma_mask <= DMA_BIT_MASK(ARCH_ZONE_DMA_BITS))
+		gfp |= GFP_DMA;
+	if (dev->coherent_dma_mask <= DMA_BIT_MASK(32) && !(gfp & GFP_DMA))
+		gfp |= GFP_DMA32;
+
 	/* CMA can be used only in the context which permits sleeping */
 	if (gfpflags_allow_blocking(gfp))
 		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
-- 
2.14.2

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From - Thu Nov 08 21:40:52 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 26/33] dma-direct: add support for CMA allocation
Date: Wed, 10 Jan 2018 09:00:20 +0100
Lines: 61
Approved: news@gmane.org
Message-ID: <20180110080027.13879-27-hch@lst.de>
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Cc: Konrad Rzeszutek Wilk <konrad@darnok.org>,
        linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org,
        linux-cris-kernel@axis.com, linux-hexagon@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
        linux-metag@vger.kernel.org, Michal Simek <monstr@monstr.eu>,
        linux-mips@linux-mips.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, patches@groups.riscv.org,
        linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
        sparclinux@vger.kernel.org, Guan Xuetao <gxt@mprc.pku.edu.cn>,
        x86@kernel.org, linux-arch@vger.kernel.org,
        linux-kernel@vger.kernel.org
To: iommu@lists.linux-foundation.org
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Try the CMA allocator for coherent allocations if supported.

Roughly modelled after the x86 code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/dma-direct.c | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 32fd4d9e4c47..a9ae98be7af3 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -7,6 +7,7 @@
 #include <linux/mm.h>
 #include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
+#include <linux/dma-contiguous.h>
 #include <linux/pfn.h>
 
 #define DIRECT_MAPPING_ERROR		0
@@ -29,19 +30,30 @@ check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
 static void *dma_direct_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
-	void *ret;
+	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
+	int page_order = get_order(size);
+	struct page *page = NULL;
 
-	ret = (void *)__get_free_pages(gfp, get_order(size));
-	if (ret)
-		*dma_handle = phys_to_dma(dev, virt_to_phys(ret));
+	/* CMA can be used only in the context which permits sleeping */
+	if (gfpflags_allow_blocking(gfp))
+		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
+	if (!page)
+		page = alloc_pages(gfp, page_order);
+	if (!page)
+		return NULL;
 
-	return ret;
+	*dma_handle = phys_to_dma(dev, page_to_phys(page));
+	memset(page_address(page), 0, size);
+	return page_address(page);
 }
 
 static void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		dma_addr_t dma_addr, unsigned long attrs)
 {
-	free_pages((unsigned long)cpu_addr, get_order(size));
+	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
+
+	if (!dma_release_from_contiguous(dev, virt_to_page(cpu_addr), count))
+		free_pages((unsigned long)cpu_addr, get_order(size));
 }
 
 static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
-- 
2.14.2


From - Thu Nov 08 21:40:52 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 24/33] dma-direct: use phys_to_dma
Date: Wed, 10 Jan 2018 09:00:18 +0100
Lines: 70
Approved: news@gmane.org
Message-ID: <20180110080027.13879-25-hch@lst.de>
References: <20180110080027.13879-1-hch@lst.de>
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Cc: Konrad Rzeszutek Wilk <konrad@darnok.org>,
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To: iommu@lists.linux-foundation.org
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Xref: news.gmane.org gmane.linux.ports.sparc:27214 gmane.linux.kernel.iommu:22052 gmane.linux.ports.alpha:4706 gmane.linux.kernel.arc:3316 gmane.linux.ports.arm.kernel:625032 gmane.linux.ports.hexagon:1532 gmane.linux.ports.ia64:28531 gmane.linux.kernel.metag:1608 gmane.linux.ports.mips.general:63218 gmane.linux.ports.parisc:28207 gmane.linux.ports.ppc64.devel:151855 gmane.linux.ports.sh.devel:56263 gmane.linux.kernel.cross-arch:41276 gmane.linux.kernel:2662741
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/27214>

This means it uses whatever linear remapping scheme that the architecture
provides is used in the generic dma_direct ops.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
---
 lib/dma-direct.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 0ec3262a3148..12ea9653781b 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -1,12 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- *	lib/dma-noop.c
- *
- * DMA operations that map to physical addresses without flushing memory.
+ * DMA operations that map physical memory directly without using an IOMMU or
+ * flushing caches.
  */
 #include <linux/export.h>
 #include <linux/mm.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
 #include <linux/pfn.h>
 
@@ -17,7 +16,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 
 	ret = (void *)__get_free_pages(gfp, get_order(size));
 	if (ret)
-		*dma_handle = virt_to_phys(ret) - PFN_PHYS(dev->dma_pfn_offset);
+		*dma_handle = phys_to_dma(dev, virt_to_phys(ret));
 
 	return ret;
 }
@@ -32,7 +31,7 @@ static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
 		unsigned long offset, size_t size, enum dma_data_direction dir,
 		unsigned long attrs)
 {
-	return page_to_phys(page) + offset - PFN_PHYS(dev->dma_pfn_offset);
+	return phys_to_dma(dev, page_to_phys(page)) + offset;
 }
 
 static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
@@ -42,12 +41,9 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	struct scatterlist *sg;
 
 	for_each_sg(sgl, sg, nents, i) {
-		dma_addr_t offset = PFN_PHYS(dev->dma_pfn_offset);
-		void *va;
-
 		BUG_ON(!sg_page(sg));
-		va = sg_virt(sg);
-		sg_dma_address(sg) = (dma_addr_t)virt_to_phys(va) - offset;
+
+		sg_dma_address(sg) = phys_to_dma(dev, sg_phys(sg));
 		sg_dma_len(sg) = sg->length;
 	}
 
-- 
2.14.2

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From - Thu Nov 08 21:40:52 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sh.devel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 22/33] dma-mapping: provide a generic asm/dma-mapping.h
Date: Wed, 10 Jan 2018 09:00:16 +0100
Lines: 172
Approved: news@gmane.org
Message-ID: <20180110080027.13879-23-hch@lst.de>
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Cc: Konrad Rzeszutek Wilk <konrad@darnok.org>,
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To: iommu@lists.linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/56264>

For architectures that just use the generic dma_noop_ops we can provide
a generic version of dma-mapping.h.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 MAINTAINERS                          |  1 +
 arch/m32r/include/asm/Kbuild         |  1 +
 arch/m32r/include/asm/dma-mapping.h  | 17 -----------------
 arch/riscv/include/asm/Kbuild        |  1 +
 arch/riscv/include/asm/dma-mapping.h | 30 ------------------------------
 arch/s390/include/asm/Kbuild         |  1 +
 arch/s390/include/asm/dma-mapping.h  | 17 -----------------
 include/asm-generic/dma-mapping.h    | 10 ++++++++++
 8 files changed, 14 insertions(+), 64 deletions(-)
 delete mode 100644 arch/m32r/include/asm/dma-mapping.h
 delete mode 100644 arch/riscv/include/asm/dma-mapping.h
 delete mode 100644 arch/s390/include/asm/dma-mapping.h
 create mode 100644 include/asm-generic/dma-mapping.h

diff --git a/MAINTAINERS b/MAINTAINERS
index d2cfdcce1db5..234e642e7149 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4338,6 +4338,7 @@ F:	lib/dma-noop.c
 F:	lib/dma-virt.c
 F:	drivers/base/dma-mapping.c
 F:	drivers/base/dma-coherent.c
+F:	include/asm-generic/dma-mapping.h
 F:	include/linux/dma-direct.h
 F:	include/linux/dma-mapping.h
 
diff --git a/arch/m32r/include/asm/Kbuild b/arch/m32r/include/asm/Kbuild
index 7e11b125c35e..ca83fda8177b 100644
--- a/arch/m32r/include/asm/Kbuild
+++ b/arch/m32r/include/asm/Kbuild
@@ -1,5 +1,6 @@
 generic-y += clkdev.h
 generic-y += current.h
+generic-y += dma-mapping.h
 generic-y += exec.h
 generic-y += extable.h
 generic-y += irq_work.h
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
deleted file mode 100644
index 8967fb659691..000000000000
--- a/arch/m32r/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_M32R_DMA_MAPPING_H
-#define _ASM_M32R_DMA_MAPPING_H
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
-#include <linux/io.h>
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &dma_noop_ops;
-}
-
-#endif /* _ASM_M32R_DMA_MAPPING_H */
diff --git a/arch/riscv/include/asm/Kbuild b/arch/riscv/include/asm/Kbuild
index 970460a0b492..197460ccbf21 100644
--- a/arch/riscv/include/asm/Kbuild
+++ b/arch/riscv/include/asm/Kbuild
@@ -7,6 +7,7 @@ generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
 generic-y += dma-contiguous.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += errno.h
 generic-y += exec.h
diff --git a/arch/riscv/include/asm/dma-mapping.h b/arch/riscv/include/asm/dma-mapping.h
deleted file mode 100644
index 73849e2cc761..000000000000
--- a/arch/riscv/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2003-2004 Hewlett-Packard Co
- *	David Mosberger-Tang <davidm@hpl.hp.com>
- * Copyright (C) 2012 ARM Ltd.
- * Copyright (C) 2016 SiFive, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef __ASM_RISCV_DMA_MAPPING_H
-#define __ASM_RISCV_DMA_MAPPING_H
-
-/* Use ops->dma_mapping_error (if it exists) or assume success */
-// #undef DMA_ERROR_CODE
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &dma_noop_ops;
-}
-
-#endif	/* __ASM_RISCV_DMA_MAPPING_H */
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index 048450869328..dade72be127b 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -4,6 +4,7 @@ generic-y += cacheflush.h
 generic-y += clkdev.h
 generic-y += device.h
 generic-y += dma-contiguous.h
+generic-y += dma-mapping.h
 generic-y += div64.h
 generic-y += emergency-restart.h
 generic-y += export.h
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
deleted file mode 100644
index bdc2455483f6..000000000000
--- a/arch/s390/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_S390_DMA_MAPPING_H
-#define _ASM_S390_DMA_MAPPING_H
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
-#include <linux/io.h>
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &dma_noop_ops;
-}
-
-#endif /* _ASM_S390_DMA_MAPPING_H */
diff --git a/include/asm-generic/dma-mapping.h b/include/asm-generic/dma-mapping.h
new file mode 100644
index 000000000000..164031531d85
--- /dev/null
+++ b/include/asm-generic/dma-mapping.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_GENERIC_DMA_MAPPING_H
+#define _ASM_GENERIC_DMA_MAPPING_H
+
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
+{
+	return &dma_noop_ops;
+}
+
+#endif /* _ASM_GENERIC_DMA_MAPPING_H */
-- 
2.14.2

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From - Thu Nov 08 21:40:52 2018
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From: Vladimir Murzin <vladimir.murzin@arm.com>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 11/33] dma-mapping: move swiotlb arch helpers to a new
 header
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To: Christoph Hellwig <hch@lst.de>, iommu@lists.linux-foundation.org
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On 10/01/18 08:00, Christoph Hellwig wrote:
> index 9110988b92a1..f00833acb626 100644
> --- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
> +++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
> @@ -61,6 +61,14 @@ static inline void plat_post_dma_flush(struct device *dev)
>  {
>  }
>  
> +static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
> +{
> +	if (!dev->dma_mask)
> +		return false;
> +
> +	return addr + size <= *dev->dma_mask;
> +}
> +

I know it is copy&paste, but it seems it has off by one error and it should be

return addr + size - 1 <= *dev->dma_mask;


>  dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
>  phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
>  

snip...

> diff --git a/arch/mips/include/asm/mach-loongson64/dma-coherence.h b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
> index 1602a9e9e8c2..5cfda8f893e9 100644
> --- a/arch/mips/include/asm/mach-loongson64/dma-coherence.h
> +++ b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
> @@ -17,6 +17,14 @@
>  
>  struct device;
>  
> +static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
> +{
> +	if (!dev->dma_mask)
> +		return false;
> +
> +	return addr + size <= *dev->dma_mask;


ditto

Cheers
Vladimir
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From - Thu Nov 08 21:40:52 2018
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From: Vladimir Murzin <vladimir.murzin@arm.com>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 29/33] dma-direct: retry allocations using GFP_DMA for
 small masks
Date: Wed, 10 Jan 2018 09:32:16 +0000
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To: Christoph Hellwig <hch@lst.de>, iommu@lists.linux-foundation.org
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On 10/01/18 08:00, Christoph Hellwig wrote:
> If an attempt to allocate memory succeeded, but isn't inside the
> supported DMA mask, retry the allocation with GFP_DMA set as a
> last resort.
> 
> Based on the x86 code, but an off by one error in what is now
> dma_coherent_ok has been fixed vs the x86 code.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  lib/dma-direct.c | 25 ++++++++++++++++++++++++-
>  1 file changed, 24 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/dma-direct.c b/lib/dma-direct.c
> index 8f76032ebc3c..4e43c2bb7f5f 100644
> --- a/lib/dma-direct.c
> +++ b/lib/dma-direct.c
> @@ -35,6 +35,11 @@ check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
>  	return true;
>  }
>  
> +static bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size)
> +{
> +	return phys_to_dma(dev, phys) + size - 1 <= dev->coherent_dma_mask;
> +}
> +
>  static void *dma_direct_alloc(struct device *dev, size_t size,
>  		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
>  {
> @@ -48,11 +53,29 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
>  	if (dev->coherent_dma_mask <= DMA_BIT_MASK(32) && !(gfp & GFP_DMA))
>  		gfp |= GFP_DMA32;
>  
> +again:
>  	/* CMA can be used only in the context which permits sleeping */
> -	if (gfpflags_allow_blocking(gfp))
> +	if (gfpflags_allow_blocking(gfp)) {
>  		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
> +		if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {
> +			dma_release_from_contiguous(dev, page, count);
> +			page = NULL;
> +		}
> +	}
>  	if (!page)
>  		page = alloc_pages_node(dev_to_node(dev), gfp, page_order);
> +
> +	if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {
> +		__free_pages(page, page_order);
> +		page = NULL;
> +
> +		if (dev->coherent_dma_mask < DMA_BIT_MASK(32) &&
> +		    !(gfp & GFP_DMA)) {
> +			gfp = (gfp & ~GFP_DMA32) | GFP_DMA;
> +			goto again;
> +		}
> +	}
> +
>  	if (!page)
>  		return NULL;
>  
> 

Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>

Cheers
Vladimir
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From - Thu Nov 08 21:40:52 2018
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From: Robin Murphy <robin.murphy@arm.com>
Newsgroups: gmane.linux.ports.m68k,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 09/33] dma-mapping: take dma_pfn_offset into account in
 dma_max_pfn
Date: Wed, 10 Jan 2018 11:07:55 +0000
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To: Christoph Hellwig <hch@lst.de>, iommu@lists.linux-foundation.org
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On 10/01/18 08:00, Christoph Hellwig wrote:
> This makes sure the generic version can be used with architectures /
> devices that have a DMA offset in the direct mapping.

Reviewed-by: Robin Murphy <robin.murphy@arm.com>

> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>   include/linux/dma-mapping.h | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
> index 81ed9b2d84dc..d84951865be7 100644
> --- a/include/linux/dma-mapping.h
> +++ b/include/linux/dma-mapping.h
> @@ -692,7 +692,7 @@ static inline int dma_set_seg_boundary(struct device *dev, unsigned long mask)
>   #ifndef dma_max_pfn
>   static inline unsigned long dma_max_pfn(struct device *dev)
>   {
> -	return *dev->dma_mask >> PAGE_SHIFT;
> +	return (*dev->dma_mask >> PAGE_SHIFT) + dev->dma_pfn_offset;
>   }
>   #endif
>   
> 

From - Thu Nov 08 21:40:52 2018
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Subject: Re: [PATCH 10/33] arm64: don't override dma_max_pfn
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On 10/01/18 08:00, Christoph Hellwig wrote:
> The generic version now takes dma_pfn_offset into account, so there is no
> more need for an architecture override.

Reviewed-by: Robin Murphy <robin.murphy@arm.com>

> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>   arch/arm64/include/asm/dma-mapping.h | 9 ---------
>   1 file changed, 9 deletions(-)
> 
> diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
> index 0df756b24863..eada887a93bf 100644
> --- a/arch/arm64/include/asm/dma-mapping.h
> +++ b/arch/arm64/include/asm/dma-mapping.h
> @@ -76,14 +76,5 @@ static inline void dma_mark_clean(void *addr, size_t size)
>   {
>   }
>   
> -/* Override for dma_max_pfn() */
> -static inline unsigned long dma_max_pfn(struct device *dev)
> -{
> -	dma_addr_t dma_max = (dma_addr_t)*dev->dma_mask;
> -
> -	return (ulong)dma_to_phys(dev, dma_max) >> PAGE_SHIFT;
> -}
> -#define dma_max_pfn(dev) dma_max_pfn(dev)
> -
>   #endif	/* __KERNEL__ */
>   #endif	/* __ASM_DMA_MAPPING_H */
> 

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Subject: Re: [PATCH 31/33] dma-direct: reject too small dma masks
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On 10/01/18 08:00, Christoph Hellwig wrote:
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>   include/linux/dma-direct.h |  1 +
>   lib/dma-direct.c           | 19 +++++++++++++++++++
>   2 files changed, 20 insertions(+)
> 
> diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
> index 4788bf0bf683..bcdb1a3e4b1f 100644
> --- a/include/linux/dma-direct.h
> +++ b/include/linux/dma-direct.h
> @@ -42,5 +42,6 @@ void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
>   		gfp_t gfp, unsigned long attrs);
>   void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
>   		dma_addr_t dma_addr, unsigned long attrs);
> +int dma_direct_supported(struct device *dev, u64 mask);
>   
>   #endif /* _LINUX_DMA_DIRECT_H */
> diff --git a/lib/dma-direct.c b/lib/dma-direct.c
> index 784a68dfdbe3..40b1f92f2214 100644
> --- a/lib/dma-direct.c
> +++ b/lib/dma-direct.c
> @@ -122,6 +122,24 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
>   	return nents;
>   }
>   
> +int dma_direct_supported(struct device *dev, u64 mask)
> +{
> +#ifdef CONFIG_ZONE_DMA
> +	if (mask < DMA_BIT_MASK(ARCH_ZONE_DMA_BITS))
> +		return 0;
> +#else
> +	/*
> +	 * Because 32-bit DMA masks are so common we expect every architecture
> +	 * to be able to satisfy them - either by not supporting more physical
> +	 * memory, or by providing a ZONE_DMA32.  If neither is the case, the
> +	 * architecture needs to use an IOMMU instead of the direct mapping.
> +	 */
> +	if (mask < DMA_BIT_MASK(32))
> +		return 0;

Do you think it's worth the effort to be a little more accommodating 
here? i.e.:

		return dma_max_pfn(dev) >= max_pfn;

We seem to have a fair few 28-31 bit masks for older hardware which 
probably associates with host systems packing equivalently small amounts 
of RAM.

Otherwise though,

Reviewed-by: Robin Murphy <robin.murphy@arm.com>

Robin.

> +#endif
> +	return 1;
> +}
> +
>   static int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr)
>   {
>   	return dma_addr == DIRECT_MAPPING_ERROR;
> @@ -132,6 +150,7 @@ const struct dma_map_ops dma_direct_ops = {
>   	.free			= dma_direct_free,
>   	.map_page		= dma_direct_map_page,
>   	.map_sg			= dma_direct_map_sg,
> +	.dma_supported		= dma_direct_supported,
>   	.mapping_error		= dma_direct_mapping_error,
>   };
>   EXPORT_SYMBOL(dma_direct_ops);
> 

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Subject: Re: [PATCH 20/33] dma-mapping: clear harmful GFP_* flags in common
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On 10/01/18 08:00, Christoph Hellwig wrote:
[...]
> diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
> index 9f28b2fa329e..88bcb1a8211d 100644
> --- a/include/linux/dma-mapping.h
> +++ b/include/linux/dma-mapping.h
> @@ -518,6 +518,13 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
>   	if (dma_alloc_from_dev_coherent(dev, size, dma_handle, &cpu_addr))
>   		return cpu_addr;
>   
> +	/*
> +	 * Let the implementation decide on the zone to allocate from, and
> +	 * decide on the way of zeroing the memory given that the memory
> +	 * returned should always be zeroed.
> +	 */

Just a note that if we're all happy to enshrine the "allocations are 
always zeroed" behaviour in the API (I am too, for the record), we 
should remember to follow up once the dust settles to update the docs 
and I guess just #define dma_zalloc_coherent dma_alloc_coherent.

Robin.

> +	flag &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM | __GFP_ZERO);
> +
>   	if (!arch_dma_alloc_attrs(&dev, &flag))
>   		return NULL;
>   	if (!ops->alloc)
> 

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To: Christoph Hellwig <hch@lst.de>, iommu@lists.linux-foundation.org
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On 10/01/18 08:00, Christoph Hellwig wrote:
> To preserve the x86 behavior.

And combined with patch 10/22 of the SWIOTLB refactoring, this means 
SWIOTLB allocations will also end up NUMA-aware, right? Great, that's 
what we want on arm64 too :)

Reviewed-by: Robin Murphy <robin.murphy@arm.com>

> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>   lib/dma-direct.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/dma-direct.c b/lib/dma-direct.c
> index a9ae98be7af3..f04a424f91fa 100644
> --- a/lib/dma-direct.c
> +++ b/lib/dma-direct.c
> @@ -38,7 +38,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
>   	if (gfpflags_allow_blocking(gfp))
>   		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
>   	if (!page)
> -		page = alloc_pages(gfp, page_order);
> +		page = alloc_pages_node(dev_to_node(dev), gfp, page_order);
>   	if (!page)
>   		return NULL;
>   
> 

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On 10.01.2018 00:03, Kees Cook wrote:
> On Sun, Jan 7, 2018 at 8:21 AM, Helge Deller <deller@gmx.de> wrote:
>> Hi Linus,
>>
>> please pull a few fixes for the parisc architecture from:
>>
>>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.15-3
>>
>> The fixes are:
>> - Many small fixes to show the real physical addresses of devices instead of
>>   hashed addresses.
>>
>> - One important fix to unbreak 32-bit SMP support: We forgot to 16-byte align
>>   the spinlocks in the assembler code.
>>
>> - Qemu support: The host will get a chance to sleep when the parisc guest is
>>   idle. We use the same mechanism as the power architecture by overlaying the
>>   "or %r10,%r10,%r10" instruction which is simply a nop on real hardware.
>>
>> Thanks,
>> Helge
>>
>> ----------------------------------------------------------------
>> Helge Deller (6):
>>       parisc: Show unhashed hardware inventory
>>       parisc: Show unhashed EISA EEPROM address
> 
> These looks like a physical addresses, yes.
> 
>>       parisc: Show initial kernel memory layout unhashed
>>       parisc: Show unhashed HPA of Dino chip
> 
> But these are virtual addresses and should be just removed, not
> switched to %px. They're not physical addresses that I can see, e.g.
> "dino_dev" is clearly being used as an in-memory structure, and the
> kernel layout literally says "virtual kernel memory layout".

Agreed, some of those should go.
I'll clean that up in upcoming patches.

Thanks!
Helge


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On 10/01/18 08:00, Christoph Hellwig wrote:
> phys_to_dma, dma_to_phys and dma_capable are helpers published by
> architecture code for use of swiotlb and xen-swiotlb only.  Drivers are
> not supposed to use these directly, but use the DMA API instead.
> 
> Move these to a new asm/dma-direct.h helper, included by a
> linux/dma-direct.h wrapper that provides the default linear mapping
> unless the architecture wants to override it.
> 
> Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
> ---
[...]
>   drivers/crypto/marvell/cesa.c                      |  1 +
>   drivers/mtd/nand/qcom_nandc.c                      |  1 +

I took a look at these, and it seems their phys_to_dma() usage is doing 
the thing which we subsequently formalised as dma_map_resource(). I've 
had a crack at a quick patch to update the CESA driver; qcom_nandc looks 
slightly more complex in that the changes probably need to span the BAM 
dmaengine driver as well.

In the process, though, I stumbled across gen_pool_dma_alloc() - yuck, 
something needs doing there, for sure...

Robin.

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To: Vladimir Murzin <vladimir.murzin@arm.com>
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On Wed, Jan 10, 2018 at 09:31:45AM +0000, Vladimir Murzin wrote:
> I know it is copy&paste, but it seems it has off by one error and it should be
> 
> return addr + size - 1 <= *dev->dma_mask;

I've added a new patch to fix the mips dma_capable() definition,
thanks.
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Subject: Re: [PATCH 11/33] dma-mapping: move swiotlb arch helpers to a new
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To: Robin Murphy <robin.murphy@arm.com>
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On Wed, Jan 10, 2018 at 02:56:01PM +0000, Robin Murphy wrote:
> I took a look at these, and it seems their phys_to_dma() usage is doing the 
> thing which we subsequently formalised as dma_map_resource(). I've had a 
> crack at a quick patch to update the CESA driver; qcom_nandc looks slightly 
> more complex in that the changes probably need to span the BAM dmaengine 
> driver as well.

Sounds great, although probably something for the next merge window.

In the meantime does this patch looks good to you?

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Subject: Re: [PATCH 20/33] dma-mapping: clear harmful GFP_* flags in common
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To: Robin Murphy <robin.murphy@arm.com>
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On Wed, Jan 10, 2018 at 11:59:30AM +0000, Robin Murphy wrote:
> Just a note that if we're all happy to enshrine the "allocations are always 
> zeroed" behaviour in the API (I am too, for the record), we should remember 
> to follow up once the dust settles to update the docs and I guess just 
> #define dma_zalloc_coherent dma_alloc_coherent.

And then just remove it.  But yes, another item for the todo list..

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Subject: Re: [PATCH 27/33] dma-direct: use node local allocations for
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On Wed, Jan 10, 2018 at 12:06:22PM +0000, Robin Murphy wrote:
> On 10/01/18 08:00, Christoph Hellwig wrote:
>> To preserve the x86 behavior.
>
> And combined with patch 10/22 of the SWIOTLB refactoring, this means 
> SWIOTLB allocations will also end up NUMA-aware, right? Great, that's what 
> we want on arm64 too :)

Well, only for swiotlb allocations that can be satisfied by
dma_direct_alloc.  If we actually have to fall back to the swiotlb
buffers there is not node affinity yet.

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Subject: Re: [PATCH 11/33] dma-mapping: move swiotlb arch helpers to a new
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To: Christoph Hellwig <hch@lst.de>
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On 10/01/18 15:26, Christoph Hellwig wrote:
> On Wed, Jan 10, 2018 at 02:56:01PM +0000, Robin Murphy wrote:
>> I took a look at these, and it seems their phys_to_dma() usage is doing the
>> thing which we subsequently formalised as dma_map_resource(). I've had a
>> crack at a quick patch to update the CESA driver; qcom_nandc looks slightly
>> more complex in that the changes probably need to span the BAM dmaengine
>> driver as well.
> 
> Sounds great, although probably something for the next merge window.
> 
> In the meantime does this patch looks good to you?

Yes indeed, modulo Vladimir's comments - it does seem prudent to fix the 
obvious off-by-ones as we touch them. I've wanted to do something like 
this for ages, but never got around to it myself.

Thanks,
Robin.
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From - Thu Nov 08 21:40:53 2018
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Subject: Re: [PATCH 31/33] dma-direct: reject too small dma masks
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On Wed, Jan 10, 2018 at 11:49:34AM +0000, Robin Murphy wrote:
>> +#ifdef CONFIG_ZONE_DMA
>> +	if (mask < DMA_BIT_MASK(ARCH_ZONE_DMA_BITS))
>> +		return 0;
>> +#else
>> +	/*
>> +	 * Because 32-bit DMA masks are so common we expect every architecture
>> +	 * to be able to satisfy them - either by not supporting more physical
>> +	 * memory, or by providing a ZONE_DMA32.  If neither is the case, the
>> +	 * architecture needs to use an IOMMU instead of the direct mapping.
>> +	 */
>> +	if (mask < DMA_BIT_MASK(32))
>> +		return 0;
>
> Do you think it's worth the effort to be a little more accommodating here? 
> i.e.:
>
> 		return dma_max_pfn(dev) >= max_pfn;
>
> We seem to have a fair few 28-31 bit masks for older hardware which 
> probably associates with host systems packing equivalently small amounts of 
> RAM.

And those devices don't have a ZONE_DMA?  I think we could do something
like that, but I'd rather have it as a separate commit with a good
explanation.  Maybe you can just send on on top of the series?

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Subject: Re: [PATCH 11/33] dma-mapping: move swiotlb arch helpers to a new
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On Wed, Jan 10, 2018 at 03:31:08PM +0000, Robin Murphy wrote:
> Yes indeed, modulo Vladimir's comments - it does seem prudent to fix the 
> obvious off-by-ones as we touch them. I've wanted to do something like this 
> for ages, but never got around to it myself.

I've fixed these now in a separate patch.  I'm taking this as an
Acked-by.

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Subject: Re: [PATCH 27/33] dma-direct: use node local allocations for coherent
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On 10/01/18 15:30, Christoph Hellwig wrote:
> On Wed, Jan 10, 2018 at 12:06:22PM +0000, Robin Murphy wrote:
>> On 10/01/18 08:00, Christoph Hellwig wrote:
>>> To preserve the x86 behavior.
>>
>> And combined with patch 10/22 of the SWIOTLB refactoring, this means
>> SWIOTLB allocations will also end up NUMA-aware, right? Great, that's what
>> we want on arm64 too :)
> 
> Well, only for swiotlb allocations that can be satisfied by
> dma_direct_alloc.  If we actually have to fall back to the swiotlb
> buffers there is not node affinity yet.

Yeah, when I looked into it I reached the conclusion that per-node 
bounce buffers probably weren't worth it - if you have to bounce you've 
already pretty much lost the performance game, and if the CPU doing the 
bouncing happens to be on a different node from the device you've 
certainly lost either way. Per-node CMA zones we definitely *would* 
like, but that's a future problem (it looks technically feasible without 
huge infrastructure changes, but fiddly).

Robin.

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On 10/01/18 15:32, Christoph Hellwig wrote:
> On Wed, Jan 10, 2018 at 11:49:34AM +0000, Robin Murphy wrote:
>>> +#ifdef CONFIG_ZONE_DMA
>>> +	if (mask < DMA_BIT_MASK(ARCH_ZONE_DMA_BITS))
>>> +		return 0;
>>> +#else
>>> +	/*
>>> +	 * Because 32-bit DMA masks are so common we expect every architecture
>>> +	 * to be able to satisfy them - either by not supporting more physical
>>> +	 * memory, or by providing a ZONE_DMA32.  If neither is the case, the
>>> +	 * architecture needs to use an IOMMU instead of the direct mapping.
>>> +	 */
>>> +	if (mask < DMA_BIT_MASK(32))
>>> +		return 0;
>>
>> Do you think it's worth the effort to be a little more accommodating here?
>> i.e.:
>>
>> 		return dma_max_pfn(dev) >= max_pfn;
>>
>> We seem to have a fair few 28-31 bit masks for older hardware which
>> probably associates with host systems packing equivalently small amounts of
>> RAM.
> 
> And those devices don't have a ZONE_DMA?  I think we could do something
> like that, but I'd rather have it as a separate commit with a good
> explanation.  Maybe you can just send on on top of the series?

Good point - other than the IXP4xx platform and possibly the Broadcom 
network drivers, it's probably only x86-relevant stuff where the concern 
is moot. Let's just keep the simple assumption then, until actually 
proven otherwise.

Robin.
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Setting si_code to 0 results in a userspace seeing an si_code of 0.
This is the same si_code as SI_USER.  Posix and common sense requires
that SI_USER not be a signal specific si_code.  As such this use of 0
for the si_code is a pretty horribly broken ABI.

Further use of si_code == 0 guaranteed that copy_siginfo_to_user saw a
value of __SI_KILL and now sees a value of SIL_KILL with the result
that uid and pid fields are copied and which might copying the si_addr
field by accident but certainly not by design.  Making this a very
flakey implementation.

Utilizing FPE_FIXME siginfo_layout will now return SIL_FAULT and the
appropriate fields will reliably be copied.

This bug is 13 years old and parsic machines are no longer being built
so I don't know if it possible or worth fixing it.  But it is at least
worth documenting this so other architectures don't make the same
mistake.

Possible ABI fixes includee:
  - Send the signal without siginfo
  - Don't generate a signal
  - Possibly assign and use an appropriate si_code
  - Don't handle cases which can't happen

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Ref: 313c01d3e3fd ("[PATCH] PA-RISC update for 2.6.0")
Histroy Tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
 arch/parisc/include/uapi/asm/siginfo.h | 7 +++++++
 arch/parisc/kernel/traps.c             | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/uapi/asm/siginfo.h b/arch/parisc/include/uapi/asm/siginfo.h
index 4a1062e05aaf..be40331f757d 100644
--- a/arch/parisc/include/uapi/asm/siginfo.h
+++ b/arch/parisc/include/uapi/asm/siginfo.h
@@ -8,4 +8,11 @@
 
 #include <asm-generic/siginfo.h>
 
+/*
+ * SIGFPE si_codes
+ */
+#ifdef __KERNEL__
+#define FPE_FIXME	0	/* Broken dup of SI_USER */
+#endif /* __KERNEL__ */
+
 #endif
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 8453724b8009..c919e6c0a687 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -629,7 +629,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 			si.si_signo = SIGFPE;
 			/* Set to zero, and let the userspace app figure it out from
 			   the insn pointed to by si_addr */
-			si.si_code = 0;
+			si.si_code = FPE_FIXME;
 			si.si_addr = (void __user *) regs->iaoq[0];
 			force_sig_info(SIGFPE, &si, current);
 			return;
-- 
2.14.1



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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22142>

Almost every architecture supports a direct dma mapping implementation,
where no iommu is used and the device dma address is a 1:1 mapping to
the physical address or has a simple linear offset.  Currently the
code for this implementation is most duplicated over the architectures,
and the duplicated again in the swiotlb code, and then duplicated again
for special cases like the x86 memory encryption DMA ops.

This series takes the existing very simple dma-noop dma mapping
implementation, enhances it with all the x86 features and quirks, and
creates a common set of architecture hooks for it and the swiotlb code.

It then switches a number of architectures to this generic
direct map implemention.

Note that for now this only handles architectures that do cache coherent
DMA, but a similar consolidation for non-coherent architectures is in the
work for later merge windows.

A git tree is also available:

   git://git.infradead.org/users/hch/misc.git dma-direct.3

Gitweb:

   http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/dma-direct.3

Changes since V3
 - new patch to fix an off-by-one in mips dma_capable
Changes since V2:
 - fixed a few patch description typos
 - fixed a few printk formats
 - fixed an off by one in dma_coherent_ok
 - add a few Reviewed-by/Acked-by tags.
 - moved the swiotlb consolidation to a new series
 - dropped a few patches for now to not overwhelem the x86
   maintainers.  They will be resubmitted in the next merge window

From - Thu Nov 08 21:40:54 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 01/34] alpha: mark jensen as broken
Date: Fri, 12 Jan 2018 09:41:59 +0100
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To: iommu@lists.linux-foundation.org
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CONFIG_ALPHA_JENSEN has failed to compile since commit 6aca0503
("alpha/dma: use common noop dma ops"), so mark it as broken.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/alpha/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index b31b974a03cb..e96adcbcab41 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -209,6 +209,7 @@ config ALPHA_EIGER
 
 config ALPHA_JENSEN
 	bool "Jensen"
+	depends on BROKEN
 	help
 	  DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
 	  of the first-generation Alpha systems. A number of these systems
-- 
2.14.2

From - Thu Nov 08 21:40:54 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 02/34] hexagon: remove unused flush_write_buffers definition
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22144>

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/hexagon/include/asm/io.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/hexagon/include/asm/io.h b/arch/hexagon/include/asm/io.h
index 66f5e9a61efc..9e8621d94ee9 100644
--- a/arch/hexagon/include/asm/io.h
+++ b/arch/hexagon/include/asm/io.h
@@ -330,8 +330,6 @@ static inline void outsl(unsigned long port, const void *buffer, int count)
 	}
 }
 
-#define flush_write_buffers() do { } while (0)
-
 #endif /* __KERNEL__ */
 
 #endif
-- 
2.14.2


From - Thu Nov 08 21:40:54 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 03/34] m32r: remove unused flush_write_buffers definition
Date: Fri, 12 Jan 2018 09:42:01 +0100
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/1631>

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/m32r/include/asm/io.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h
index 1b653bb16f9a..a4272d8f0d9c 100644
--- a/arch/m32r/include/asm/io.h
+++ b/arch/m32r/include/asm/io.h
@@ -191,8 +191,6 @@ static inline void _writel(unsigned long l, unsigned long addr)
 
 #define mmiowb()
 
-#define flush_write_buffers() do { } while (0)  /* M32R_FIXME */
-
 static inline void
 memset_io(volatile void __iomem *addr, unsigned char val, int count)
 {
-- 
2.14.2


From - Thu Nov 08 21:40:54 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 04/34] powerpc: remove unused flush_write_buffers definition
Date: Fri, 12 Jan 2018 09:42:02 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22146>

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/powerpc/include/asm/dma-mapping.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 5a6cbe11db6f..592c7f418aa0 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -107,9 +107,6 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
 		dev->archdata.dma_offset = off;
 }
 
-/* this will be removed soon */
-#define flush_write_buffers()
-
 #define HAVE_ARCH_DMA_SET_MASK 1
 extern int dma_set_mask(struct device *dev, u64 dma_mask);
 
-- 
2.14.2


From - Thu Nov 08 21:40:54 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 05/34] arc: remove CONFIG_ARC_PLAT_NEEDS_PHYS_TO_DMA
Date: Fri, 12 Jan 2018 09:42:03 +0100
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/1633>

We always use the stub definitions, so remove the unused other code.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Acked-by: Vineet Gupta <vgupta-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
---
 arch/arc/Kconfig                   |  3 ---
 arch/arc/include/asm/dma-mapping.h |  7 -------
 arch/arc/mm/dma.c                  | 14 +++++++-------
 3 files changed, 7 insertions(+), 17 deletions(-)

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 9d5fd00d9e91..f3a80cf164cc 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -463,9 +463,6 @@ config ARCH_PHYS_ADDR_T_64BIT
 config ARCH_DMA_ADDR_T_64BIT
 	bool
 
-config ARC_PLAT_NEEDS_PHYS_TO_DMA
-	bool
-
 config ARC_KVADDR_SIZE
 	int "Kernel Virtual Address Space size (MB)"
 	range 0 512
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index 94285031c4fb..7a16824bfe98 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -11,13 +11,6 @@
 #ifndef ASM_ARC_DMA_MAPPING_H
 #define ASM_ARC_DMA_MAPPING_H
 
-#ifndef CONFIG_ARC_PLAT_NEEDS_PHYS_TO_DMA
-#define plat_dma_to_phys(dev, dma_handle) ((phys_addr_t)(dma_handle))
-#define plat_phys_to_dma(dev, paddr) ((dma_addr_t)(paddr))
-#else
-#include <plat/dma.h>
-#endif
-
 extern const struct dma_map_ops arc_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index e9d93604ad0f..1dcc404b5aec 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -60,7 +60,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
 	/* This is linear addr (0x8000_0000 based) */
 	paddr = page_to_phys(page);
 
-	*dma_handle = plat_phys_to_dma(dev, paddr);
+	*dma_handle = paddr;
 
 	/* This is kernel Virtual address (0x7000_0000 based) */
 	if (need_kvaddr) {
@@ -92,7 +92,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
 static void arc_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
-	phys_addr_t paddr = plat_dma_to_phys(dev, dma_handle);
+	phys_addr_t paddr = dma_handle;
 	struct page *page = virt_to_page(paddr);
 	int is_non_coh = 1;
 
@@ -111,7 +111,7 @@ static int arc_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 {
 	unsigned long user_count = vma_pages(vma);
 	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
-	unsigned long pfn = __phys_to_pfn(plat_dma_to_phys(dev, dma_addr));
+	unsigned long pfn = __phys_to_pfn(dma_addr);
 	unsigned long off = vma->vm_pgoff;
 	int ret = -ENXIO;
 
@@ -175,7 +175,7 @@ static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
 	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
 		_dma_cache_sync(paddr, size, dir);
 
-	return plat_phys_to_dma(dev, paddr);
+	return paddr;
 }
 
 /*
@@ -190,7 +190,7 @@ static void arc_dma_unmap_page(struct device *dev, dma_addr_t handle,
 			       size_t size, enum dma_data_direction dir,
 			       unsigned long attrs)
 {
-	phys_addr_t paddr = plat_dma_to_phys(dev, handle);
+	phys_addr_t paddr = handle;
 
 	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
 		_dma_cache_sync(paddr, size, dir);
@@ -224,13 +224,13 @@ static void arc_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
 static void arc_dma_sync_single_for_cpu(struct device *dev,
 		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
 {
-	_dma_cache_sync(plat_dma_to_phys(dev, dma_handle), size, DMA_FROM_DEVICE);
+	_dma_cache_sync(dma_handle, size, DMA_FROM_DEVICE);
 }
 
 static void arc_dma_sync_single_for_device(struct device *dev,
 		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
 {
-	_dma_cache_sync(plat_dma_to_phys(dev, dma_handle), size, DMA_TO_DEVICE);
+	_dma_cache_sync(dma_handle, size, DMA_TO_DEVICE);
 }
 
 static void arc_dma_sync_sg_for_cpu(struct device *dev,
-- 
2.14.2


From - Thu Nov 08 21:40:54 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 07/34] riscv: remove the unused dma_capable helper
Date: Fri, 12 Jan 2018 09:42:05 +0100
Lines: 25
Approved: news@gmane.org
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        linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Michal Simek <monstr-pSz03upnqPeHXe+LvDLADg@public.gmane.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/1634>

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/riscv/include/asm/dma-mapping.h | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/riscv/include/asm/dma-mapping.h b/arch/riscv/include/asm/dma-mapping.h
index 3eec1000196d..73849e2cc761 100644
--- a/arch/riscv/include/asm/dma-mapping.h
+++ b/arch/riscv/include/asm/dma-mapping.h
@@ -27,12 +27,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &dma_noop_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #endif	/* __ASM_RISCV_DMA_MAPPING_H */
-- 
2.14.2


From - Thu Nov 08 21:40:54 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 08/34] s390: remove the unused dma_capable helper
Date: Fri, 12 Jan 2018 09:42:06 +0100
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Xref: news.gmane.org gmane.linux.kernel.iommu:22149 gmane.linux.ports.mips.general:63290 gmane.linux.ports.ia64:28593 gmane.linux.ports.sh.devel:56294 gmane.linux.ports.sparc:27243 gmane.linux.kernel.cross-arch:41451 gmane.linux.ports.hexagon:1558 gmane.linux.kernel.arc:3342 gmane.linux.kernel.metag:1635 gmane.linux.ports.arm.kernel:625648 gmane.linux.ports.parisc:28235 gmane.linux.kernel:2665081 gmane.linux.ports.alpha:4732 gmane.linux.ports.ppc64.devel:152017
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22149>

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/s390/include/asm/dma-mapping.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index eaf490f9c5bc..2ec7240c1ada 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -16,11 +16,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &dma_noop_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #endif /* _ASM_S390_DMA_MAPPING_H */
-- 
2.14.2


From - Thu Nov 08 21:40:54 2018
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Subject: [PATCH 06/34] m32r: remove the unused dma_capable helper
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Xref: news.gmane.org gmane.linux.kernel.iommu:22150 gmane.linux.ports.mips.general:63291 gmane.linux.ports.ia64:28594 gmane.linux.ports.sh.devel:56295 gmane.linux.ports.sparc:27244 gmane.linux.kernel.cross-arch:41452 gmane.linux.ports.hexagon:1559 gmane.linux.kernel.arc:3343 gmane.linux.kernel.metag:1636 gmane.linux.ports.arm.kernel:625649 gmane.linux.ports.parisc:28236 gmane.linux.kernel:2665082 gmane.linux.ports.alpha:4733 gmane.linux.ports.ppc64.devel:152018
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22150>

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/m32r/include/asm/dma-mapping.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 336ffe60814b..8967fb659691 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -14,11 +14,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &dma_noop_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #endif /* _ASM_M32R_DMA_MAPPING_H */
-- 
2.14.2


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Subject: [PATCH 10/34] arm64: don't override dma_max_pfn
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/56296>

The generic version now takes dma_pfn_offset into account, so there is no
more need for an architecture override.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
---
 arch/arm64/include/asm/dma-mapping.h | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 0df756b24863..eada887a93bf 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -76,14 +76,5 @@ static inline void dma_mark_clean(void *addr, size_t size)
 {
 }
 
-/* Override for dma_max_pfn() */
-static inline unsigned long dma_max_pfn(struct device *dev)
-{
-	dma_addr_t dma_max = (dma_addr_t)*dev->dma_mask;
-
-	return (ulong)dma_to_phys(dev, dma_max) >> PAGE_SHIFT;
-}
-#define dma_max_pfn(dev) dma_max_pfn(dev)
-
 #endif	/* __KERNEL__ */
 #endif	/* __ASM_DMA_MAPPING_H */
-- 
2.14.2

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From - Thu Nov 08 21:40:55 2018
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Subject: [PATCH 12/34] dma-mapping: move swiotlb arch helpers to a new header
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/4735>

phys_to_dma, dma_to_phys and dma_capable are helpers published by
architecture code for use of swiotlb and xen-swiotlb only.  Drivers are
not supposed to use these directly, but use the DMA API instead.

Move these to a new asm/dma-direct.h helper, included by a
linux/dma-direct.h wrapper that provides the default linear mapping
unless the architecture wants to override it.

In the MIPS case the existing dma-coherent.h is reused for now as
untangling it will take a bit of work.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Robin Murphy <robin.murphy@arm.com>
---
 MAINTAINERS                                        |  1 +
 arch/Kconfig                                       |  4 +++
 arch/arm/Kconfig                                   |  1 +
 arch/arm/include/asm/dma-direct.h                  | 36 ++++++++++++++++++++++
 arch/arm/include/asm/dma-mapping.h                 | 31 -------------------
 arch/arm64/include/asm/dma-mapping.h               | 22 -------------
 arch/arm64/mm/dma-mapping.c                        |  2 +-
 arch/ia64/include/asm/dma-mapping.h                | 18 -----------
 arch/mips/Kconfig                                  |  2 ++
 arch/mips/include/asm/dma-direct.h                 |  1 +
 arch/mips/include/asm/dma-mapping.h                |  8 -----
 .../include/asm/mach-cavium-octeon/dma-coherence.h |  8 +++++
 arch/mips/include/asm/mach-generic/dma-coherence.h | 12 --------
 .../include/asm/mach-loongson64/dma-coherence.h    |  8 +++++
 arch/powerpc/Kconfig                               |  1 +
 arch/powerpc/include/asm/dma-direct.h              | 29 +++++++++++++++++
 arch/powerpc/include/asm/dma-mapping.h             | 25 ---------------
 arch/tile/include/asm/dma-mapping.h                | 18 -----------
 arch/unicore32/include/asm/dma-mapping.h           | 18 -----------
 arch/x86/Kconfig                                   |  1 +
 arch/x86/include/asm/dma-direct.h                  | 30 ++++++++++++++++++
 arch/x86/include/asm/dma-mapping.h                 | 26 ----------------
 arch/x86/kernel/amd_gart_64.c                      |  1 +
 arch/x86/kernel/pci-dma.c                          |  2 +-
 arch/x86/kernel/pci-nommu.c                        |  2 +-
 arch/x86/kernel/pci-swiotlb.c                      |  2 +-
 arch/x86/mm/mem_encrypt.c                          |  2 +-
 arch/x86/pci/sta2x11-fixup.c                       |  1 +
 arch/xtensa/include/asm/dma-mapping.h              | 10 ------
 drivers/crypto/marvell/cesa.c                      |  1 +
 drivers/mtd/nand/qcom_nandc.c                      |  1 +
 drivers/xen/swiotlb-xen.c                          |  2 +-
 include/linux/dma-direct.h                         | 32 +++++++++++++++++++
 lib/swiotlb.c                                      |  2 +-
 34 files changed, 165 insertions(+), 195 deletions(-)
 create mode 100644 arch/arm/include/asm/dma-direct.h
 create mode 100644 arch/mips/include/asm/dma-direct.h
 create mode 100644 arch/powerpc/include/asm/dma-direct.h
 create mode 100644 arch/x86/include/asm/dma-direct.h
 create mode 100644 include/linux/dma-direct.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 95c3fa1f520f..d2cfdcce1db5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4338,6 +4338,7 @@ F:	lib/dma-noop.c
 F:	lib/dma-virt.c
 F:	drivers/base/dma-mapping.c
 F:	drivers/base/dma-coherent.c
+F:	include/linux/dma-direct.h
 F:	include/linux/dma-mapping.h
 
 DME1737 HARDWARE MONITOR DRIVER
diff --git a/arch/Kconfig b/arch/Kconfig
index 400b9e1b2f27..3edf118ad777 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -938,6 +938,10 @@ config STRICT_MODULE_RWX
 	  and non-text memory will be made non-executable. This provides
 	  protection against certain security exploits (e.g. writing to text)
 
+# select if the architecture provides an asm/dma-direct.h header
+config ARCH_HAS_PHYS_TO_DMA
+	bool
+
 config ARCH_HAS_REFCOUNT
 	bool
 	help
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 51c8df561077..00d889a37965 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -8,6 +8,7 @@ config ARM
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_SET_MEMORY
+	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
 	select ARCH_HAS_STRICT_MODULE_RWX if MMU
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
diff --git a/arch/arm/include/asm/dma-direct.h b/arch/arm/include/asm/dma-direct.h
new file mode 100644
index 000000000000..5b0a8a421894
--- /dev/null
+++ b/arch/arm/include/asm/dma-direct.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_ARM_DMA_DIRECT_H
+#define ASM_ARM_DMA_DIRECT_H 1
+
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	unsigned int offset = paddr & ~PAGE_MASK;
+	return pfn_to_dma(dev, __phys_to_pfn(paddr)) + offset;
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
+{
+	unsigned int offset = dev_addr & ~PAGE_MASK;
+	return __pfn_to_phys(dma_to_pfn(dev, dev_addr)) + offset;
+}
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	u64 limit, mask;
+
+	if (!dev->dma_mask)
+		return 0;
+
+	mask = *dev->dma_mask;
+
+	limit = (mask + 1) & ~mask;
+	if (limit && size > limit)
+		return 0;
+
+	if ((addr | (addr + size - 1)) & ~mask)
+		return 0;
+
+	return 1;
+}
+
+#endif /* ASM_ARM_DMA_DIRECT_H */
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index daf837423a76..5fb1b7fbdfbe 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -109,37 +109,6 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	unsigned int offset = paddr & ~PAGE_MASK;
-	return pfn_to_dma(dev, __phys_to_pfn(paddr)) + offset;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
-{
-	unsigned int offset = dev_addr & ~PAGE_MASK;
-	return __pfn_to_phys(dma_to_pfn(dev, dev_addr)) + offset;
-}
-
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	u64 limit, mask;
-
-	if (!dev->dma_mask)
-		return 0;
-
-	mask = *dev->dma_mask;
-
-	limit = (mask + 1) & ~mask;
-	if (limit && size > limit)
-		return 0;
-
-	if ((addr | (addr + size - 1)) & ~mask)
-		return 0;
-
-	return 1;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size) { }
 
 /**
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index eada887a93bf..400fa67d3b5a 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -50,28 +50,6 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	dma_addr_t dev_addr = (dma_addr_t)paddr;
-
-	return dev_addr - ((dma_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
-{
-	phys_addr_t paddr = (phys_addr_t)dev_addr;
-
-	return paddr + ((phys_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
-}
-
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size)
 {
 }
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index b45c5bcaeccb..f3a637b98487 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -24,7 +24,7 @@
 #include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/genalloc.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/dma-contiguous.h>
 #include <linux/vmalloc.h>
 #include <linux/swiotlb.h>
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index c1bab526a046..eabee56d995c 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -27,22 +27,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return platform_dma_get_ops(NULL);
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr;
-}
-
 #endif /* _ASM_IA64_DMA_MAPPING_H */
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 350a990fc719..4b0c26b2e9b7 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -429,6 +429,7 @@ config MACH_LOONGSON32
 
 config MACH_LOONGSON64
 	bool "Loongson-2/3 family of machines"
+	select ARCH_HAS_PHYS_TO_DMA
 	select SYS_SUPPORTS_ZBOOT
 	help
 	  This enables the support of Loongson-2/3 family of machines.
@@ -877,6 +878,7 @@ config MIKROTIK_RB532
 config CAVIUM_OCTEON_SOC
 	bool "Cavium Networks Octeon SoC based boards"
 	select CEVT_R4K
+	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_PHYS_ADDR_T_64BIT
 	select DMA_COHERENT
 	select SYS_SUPPORTS_64BIT_KERNEL
diff --git a/arch/mips/include/asm/dma-direct.h b/arch/mips/include/asm/dma-direct.h
new file mode 100644
index 000000000000..f32f15530aba
--- /dev/null
+++ b/arch/mips/include/asm/dma-direct.h
@@ -0,0 +1 @@
+#include <asm/dma-coherence.h>
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 5c334ac15945..676c14cfc580 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -17,14 +17,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return mips_dma_map_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
 #define arch_setup_dma_ops arch_setup_dma_ops
diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
index 9110988b92a1..138edf6b5b48 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
@@ -61,6 +61,14 @@ static inline void plat_post_dma_flush(struct device *dev)
 {
 }
 
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size - 1 <= *dev->dma_mask;
+}
+
 dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
 phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
 
diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h
index 61addb1677e9..8ad7a40ca786 100644
--- a/arch/mips/include/asm/mach-generic/dma-coherence.h
+++ b/arch/mips/include/asm/mach-generic/dma-coherence.h
@@ -70,16 +70,4 @@ static inline void plat_post_dma_flush(struct device *dev)
 }
 #endif
 
-#ifdef CONFIG_SWIOTLB
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr;
-}
-#endif
-
 #endif /* __ASM_MACH_GENERIC_DMA_COHERENCE_H */
diff --git a/arch/mips/include/asm/mach-loongson64/dma-coherence.h b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
index 1602a9e9e8c2..b1b575f5c6c1 100644
--- a/arch/mips/include/asm/mach-loongson64/dma-coherence.h
+++ b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
@@ -17,6 +17,14 @@
 
 struct device;
 
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size - 1 <= *dev->dma_mask;
+}
+
 extern dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
 extern phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
 static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c51e6ce42e7a..887285eb684a 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -139,6 +139,7 @@ config PPC
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
+	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_HAS_PMEM_API                if PPC64
 	select ARCH_HAS_SCALED_CPUTIME		if VIRT_CPU_ACCOUNTING_NATIVE
 	select ARCH_HAS_SG_CHAIN
diff --git a/arch/powerpc/include/asm/dma-direct.h b/arch/powerpc/include/asm/dma-direct.h
new file mode 100644
index 000000000000..a5b59c765426
--- /dev/null
+++ b/arch/powerpc/include/asm/dma-direct.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_POWERPC_DMA_DIRECT_H
+#define ASM_POWERPC_DMA_DIRECT_H 1
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+#ifdef CONFIG_SWIOTLB
+	struct dev_archdata *sd = &dev->archdata;
+
+	if (sd->max_direct_dma_addr && addr + size > sd->max_direct_dma_addr)
+		return false;
+#endif
+
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size - 1 <= *dev->dma_mask;
+}
+
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	return paddr + get_dma_offset(dev);
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+{
+	return daddr - get_dma_offset(dev);
+}
+#endif /* ASM_POWERPC_DMA_DIRECT_H */
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 592c7f418aa0..f6ab51205a85 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -112,31 +112,6 @@ extern int dma_set_mask(struct device *dev, u64 dma_mask);
 
 extern u64 __dma_get_required_mask(struct device *dev);
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-#ifdef CONFIG_SWIOTLB
-	struct dev_archdata *sd = &dev->archdata;
-
-	if (sd->max_direct_dma_addr && addr + size > sd->max_direct_dma_addr)
-		return false;
-#endif
-
-	if (!dev->dma_mask)
-		return false;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr + get_dma_offset(dev);
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr - get_dma_offset(dev);
-}
-
 #define ARCH_HAS_DMA_MMAP_COHERENT
 
 #endif /* __KERNEL__ */
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 97ad62878290..75b8aaa4e70b 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -44,26 +44,8 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
 	dev->archdata.dma_offset = off;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #define HAVE_ARCH_DMA_SET_MASK 1
 int dma_set_mask(struct device *dev, u64 mask);
 
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index ac608c2f6af6..5cb250bf2d8c 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -25,24 +25,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &swiotlb_dma_map_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (dev && dev->dma_mask)
-		return addr + size - 1 <= *dev->dma_mask;
-
-	return 1;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return daddr;
-}
-
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
 #endif /* __KERNEL__ */
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d4fc98c50378..f6f4328103c0 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -54,6 +54,7 @@ config X86
 	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_KCOV			if X86_64
+	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_HAS_PMEM_API		if X86_64
 	# Causing hangs/crashes, see the commit that added this change for details.
 	select ARCH_HAS_REFCOUNT
diff --git a/arch/x86/include/asm/dma-direct.h b/arch/x86/include/asm/dma-direct.h
new file mode 100644
index 000000000000..1295bc622ebe
--- /dev/null
+++ b/arch/x86/include/asm/dma-direct.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_X86_DMA_DIRECT_H
+#define ASM_X86_DMA_DIRECT_H 1
+
+#include <linux/mem_encrypt.h>
+
+#ifdef CONFIG_X86_DMA_REMAP /* Platform code defines bridge-specific code */
+bool dma_capable(struct device *dev, dma_addr_t addr, size_t size);
+dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
+phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
+#else
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return 0;
+
+	return addr + size - 1 <= *dev->dma_mask;
+}
+
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	return __sme_set(paddr);
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+{
+	return __sme_clr(daddr);
+}
+#endif /* CONFIG_X86_DMA_REMAP */
+#endif /* ASM_X86_DMA_DIRECT_H */
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 0350d99bb8fd..dfdc9357a349 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -12,7 +12,6 @@
 #include <asm/io.h>
 #include <asm/swiotlb.h>
 #include <linux/dma-contiguous.h>
-#include <linux/mem_encrypt.h>
 
 #ifdef CONFIG_ISA
 # define ISA_DMA_BIT_MASK DMA_BIT_MASK(24)
@@ -42,31 +41,6 @@ extern void dma_generic_free_coherent(struct device *dev, size_t size,
 				      void *vaddr, dma_addr_t dma_addr,
 				      unsigned long attrs);
 
-#ifdef CONFIG_X86_DMA_REMAP /* Platform code defines bridge-specific code */
-extern bool dma_capable(struct device *dev, dma_addr_t addr, size_t size);
-extern dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
-extern phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
-#else
-
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return __sme_set(paddr);
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return __sme_clr(daddr);
-}
-#endif /* CONFIG_X86_DMA_REMAP */
-
 static inline unsigned long dma_alloc_coherent_mask(struct device *dev,
 						    gfp_t gfp)
 {
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index cc0e8bc0ea3f..ecd486cb06ab 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -31,6 +31,7 @@
 #include <linux/io.h>
 #include <linux/gfp.h>
 #include <linux/atomic.h>
+#include <linux/dma-direct.h>
 #include <asm/mtrr.h>
 #include <asm/pgtable.h>
 #include <asm/proto.h>
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 599d7462eccc..8439e6de6156 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/dma-debug.h>
 #include <linux/dmar.h>
 #include <linux/export.h>
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index b0caae27e1b7..618285e475c6 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Fallback functions when the main IOMMU code is not compiled in. This
    code is roughly equivalent to i386. */
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
 #include <linux/string.h>
 #include <linux/gfp.h>
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 53bd05ea90d8..9d3e35c33d94 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -6,7 +6,7 @@
 #include <linux/init.h>
 #include <linux/swiotlb.h>
 #include <linux/bootmem.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/mem_encrypt.h>
 
 #include <asm/iommu.h>
diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c
index 391b13402e40..09532c935da0 100644
--- a/arch/x86/mm/mem_encrypt.c
+++ b/arch/x86/mm/mem_encrypt.c
@@ -15,7 +15,7 @@
 #include <linux/linkage.h>
 #include <linux/init.h>
 #include <linux/mm.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/swiotlb.h>
 #include <linux/mem_encrypt.h>
 
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 53d600217973..75577c1490c4 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -26,6 +26,7 @@
 #include <linux/pci_ids.h>
 #include <linux/export.h>
 #include <linux/list.h>
+#include <linux/dma-direct.h>
 #include <asm/iommu.h>
 
 #define STA2X11_SWIOTLB_SIZE (4*1024*1024)
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 153bf2370988..44098800dad7 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -23,14 +23,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &xtensa_dma_map_ops;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	return (dma_addr_t)paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
-	return (phys_addr_t)daddr;
-}
-
 #endif	/* _XTENSA_DMA_MAPPING_H */
diff --git a/drivers/crypto/marvell/cesa.c b/drivers/crypto/marvell/cesa.c
index 293832488cc9..3a0c40081ffb 100644
--- a/drivers/crypto/marvell/cesa.c
+++ b/drivers/crypto/marvell/cesa.c
@@ -24,6 +24,7 @@
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
 #include <linux/module.h>
+#include <linux/dma-direct.h> /* XXX: drivers shall never use this directly! */
 #include <linux/clk.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
diff --git a/drivers/mtd/nand/qcom_nandc.c b/drivers/mtd/nand/qcom_nandc.c
index 2656c1ac5646..411cdfd12a85 100644
--- a/drivers/mtd/nand/qcom_nandc.c
+++ b/drivers/mtd/nand/qcom_nandc.c
@@ -23,6 +23,7 @@
 #include <linux/of_device.h>
 #include <linux/delay.h>
 #include <linux/dma/qcom_bam_dma.h>
+#include <linux/dma-direct.h> /* XXX: drivers shall never use this directly! */
 
 /* NANDc reg offsets */
 #define	NAND_FLASH_CMD			0x00
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 82fc54f8eb77..5bb72d3f8337 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -36,7 +36,7 @@
 #define pr_fmt(fmt) "xen:" KBUILD_MODNAME ": " fmt
 
 #include <linux/bootmem.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/export.h>
 #include <xen/swiotlb-xen.h>
 #include <xen/page.h>
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
new file mode 100644
index 000000000000..2cc1b6558944
--- /dev/null
+++ b/include/linux/dma-direct.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_DMA_DIRECT_H
+#define _LINUX_DMA_DIRECT_H 1
+
+#include <linux/dma-mapping.h>
+
+#ifdef CONFIG_ARCH_HAS_PHYS_TO_DMA
+#include <asm/dma-direct.h>
+#else
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	dma_addr_t dev_addr = (dma_addr_t)paddr;
+
+	return dev_addr - ((dma_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
+{
+	phys_addr_t paddr = (phys_addr_t)dev_addr;
+
+	return paddr + ((phys_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
+}
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size - 1 <= *dev->dma_mask;
+}
+#endif /* !CONFIG_ARCH_HAS_PHYS_TO_DMA */
+#endif /* _LINUX_DMA_DIRECT_H */
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index cea19aaf303c..6583f3512386 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -18,7 +18,7 @@
  */
 
 #include <linux/cache.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/mm.h>
 #include <linux/export.h>
 #include <linux/spinlock.h>
-- 
2.14.2

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From - Thu Nov 08 21:40:55 2018
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Subject: [PATCH 11/34] mips: fix an off-by-one in dma_capable
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sh.devel/56298>

This makes it match the generic version.

Reported-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/mips/include/asm/dma-mapping.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 0d9418d264f9..5c334ac15945 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -22,7 +22,7 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 	if (!dev->dma_mask)
 		return false;
 
-	return addr + size <= *dev->dma_mask;
+	return addr + size - 1 <= *dev->dma_mask;
 }
 
 static inline void dma_mark_clean(void *addr, size_t size) {}
-- 
2.14.2

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From - Thu Nov 08 21:40:55 2018
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Subject: [PATCH 14/34] hexagon: use the generic dma_capable helper
Date: Fri, 12 Jan 2018 09:42:12 +0100
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Richard Kuo <rkuo@codeaurora.org>
---
 arch/hexagon/include/asm/dma-mapping.h | 7 -------
 arch/hexagon/kernel/dma.c              | 1 +
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index 5208de242e79..263f6acbfb0f 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -37,11 +37,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return dma_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-	return addr + size - 1 <= *dev->dma_mask;
-}

From - Thu Nov 08 21:40:55 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 09/34] dma-mapping: take dma_pfn_offset into account in
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Date: Fri, 12 Jan 2018 09:42:07 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22155>

This makes sure the generic version can be used with architectures /
devices that have a DMA offset in the direct mapping.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Reviewed-by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
---
 include/linux/dma-mapping.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 81ed9b2d84dc..d84951865be7 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -692,7 +692,7 @@ static inline int dma_set_seg_boundary(struct device *dev, unsigned long mask)
 #ifndef dma_max_pfn
 static inline unsigned long dma_max_pfn(struct device *dev)
 {
-	return *dev->dma_mask >> PAGE_SHIFT;
+	return (*dev->dma_mask >> PAGE_SHIFT) + dev->dma_pfn_offset;
 }
 #endif
 
-- 
2.14.2


From - Thu Nov 08 21:40:55 2018
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Newsgroups: gmane.linux.ports.ia64,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 17/34] microblaze: remove dma_nommu_dma_supported
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Xref: news.gmane.org gmane.linux.ports.ia64:28600 gmane.linux.kernel.iommu:22156 gmane.linux.ports.alpha:4739 gmane.linux.kernel.arc:3349 gmane.linux.ports.arm.kernel:625655 gmane.linux.ports.hexagon:1565 gmane.linux.kernel.metag:1642 gmane.linux.ports.mips.general:63297 gmane.linux.ports.parisc:28242 gmane.linux.ports.ppc64.devel:152024 gmane.linux.ports.sh.devel:56301 gmane.linux.ports.sparc:27250 gmane.linux.kernel.cross-arch:41458 gmane.linux.kernel:2665088
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/28600>

Always returning 1 is the same behavior as not supplying a method at all.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/microblaze/kernel/dma.c | 6 ------
 arch/parisc/kernel/pci-dma.c | 7 -------
 2 files changed, 13 deletions(-)

diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 450803e5731a..b45d8f8967af 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -89,11 +89,6 @@ static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
-static int dma_nommu_dma_supported(struct device *dev, u64 mask)
-{
-	return 1;
-}
-
 static inline dma_addr_t dma_nommu_map_page(struct device *dev,
 					     struct page *page,
 					     unsigned long offset,
@@ -209,7 +204,6 @@ const struct dma_map_ops dma_nommu_ops = {
 	.free			= dma_nommu_free_coherent,
 	.mmap			= dma_nommu_mmap_coherent,
 	.map_sg			= dma_nommu_map_sg,
-	.dma_supported		= dma_nommu_dma_supported,
 	.map_page		= dma_nommu_map_page,
 	.unmap_page		= dma_nommu_unmap_page,
 	.sync_single_for_cpu	= dma_nommu_sync_single_for_cpu,
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index c0dfd892f70c..91bc0cac03a1 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -75,11 +75,6 @@ void dump_resmap(void)
 static inline void dump_resmap(void) {;}
 #endif
 
-static int pa11_dma_supported( struct device *dev, u64 mask)
-{
-	return 1;
-}
-
 static inline int map_pte_uncached(pte_t * pte,
 		unsigned long vaddr,
 		unsigned long size, unsigned long *paddr_ptr)
@@ -579,7 +574,6 @@ static void pa11_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 }
 
 const struct dma_map_ops pcxl_dma_ops = {
-	.dma_supported =	pa11_dma_supported,
 	.alloc =		pa11_dma_alloc,
 	.free =			pa11_dma_free,
 	.map_page =		pa11_dma_map_page,
@@ -616,7 +610,6 @@ static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
 }
 
 const struct dma_map_ops pcx_dma_ops = {
-	.dma_supported =	pa11_dma_supported,
 	.alloc =		pcx_dma_alloc,
 	.free =			pcx_dma_free,
 	.map_page =		pa11_dma_map_page,
-- 
2.14.2

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From - Thu Nov 08 21:40:55 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel.iommu,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 18/34] microblaze: remove the dead !NOT_COHERENT_CACHE dma code
Date: Fri, 12 Jan 2018 09:42:16 +0100
Lines: 73
Approved: news@gmane.org
Message-ID: <20180112084232.2857-19-hch@lst.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.alpha/4740>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/microblaze/kernel/dma.c | 28 ----------------------------
 1 file changed, 28 deletions(-)

diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index b45d8f8967af..c91e8cef98dd 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -15,42 +15,18 @@
 #include <linux/bug.h>
 #include <asm/cacheflush.h>
 
-#define NOT_COHERENT_CACHE
-
 static void *dma_nommu_alloc_coherent(struct device *dev, size_t size,
 				       dma_addr_t *dma_handle, gfp_t flag,
 				       unsigned long attrs)
 {
-#ifdef NOT_COHERENT_CACHE
 	return consistent_alloc(flag, size, dma_handle);
-#else
-	void *ret;
-	struct page *page;
-	int node = dev_to_node(dev);
-
-	/* ignore region specifiers */
-	flag  &= ~(__GFP_HIGHMEM);
-
-	page = alloc_pages_node(node, flag, get_order(size));
-	if (page == NULL)
-		return NULL;
-	ret = page_address(page);
-	memset(ret, 0, size);
-	*dma_handle = virt_to_phys(ret);
-
-	return ret;
-#endif
 }
 
 static void dma_nommu_free_coherent(struct device *dev, size_t size,
 				     void *vaddr, dma_addr_t dma_handle,
 				     unsigned long attrs)
 {
-#ifdef NOT_COHERENT_CACHE
 	consistent_free(size, vaddr);
-#else
-	free_pages((unsigned long)vaddr, get_order(size));
-#endif
 }
 
 static inline void __dma_sync(unsigned long paddr,
@@ -186,12 +162,8 @@ int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 	if (off >= count || user_count > (count - off))
 		return -ENXIO;
 
-#ifdef NOT_COHERENT_CACHE
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 	pfn = consistent_virt_to_pfn(cpu_addr);
-#else
-	pfn = virt_to_pfn(cpu_addr);
-#endif
 	return remap_pfn_range(vma, vma->vm_start, pfn + off,
 			       vma->vm_end - vma->vm_start, vma->vm_page_prot);
 #else
-- 
2.14.2

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From - Thu Nov 08 21:40:55 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.metag,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 16/34] microblaze: rename dma_direct to dma_nommu
Date: Fri, 12 Jan 2018 09:42:14 +0100
Lines: 163
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.metag/1644>

This frees the dma_direct_* namespace for a generic implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/microblaze/include/asm/dma-mapping.h |  4 +--
 arch/microblaze/kernel/dma.c              | 48 +++++++++++++++----------------
 2 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 6b9ea39405b8..add50c1373bf 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -18,11 +18,11 @@
 /*
  * Available generic sets of operations
  */
-extern const struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_nommu_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	return &dma_direct_ops;
+	return &dma_nommu_ops;
 }
 
 #endif	/* _ASM_MICROBLAZE_DMA_MAPPING_H */
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 990bf9ea0ec6..450803e5731a 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -17,7 +17,7 @@
 
 #define NOT_COHERENT_CACHE
 
-static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
+static void *dma_nommu_alloc_coherent(struct device *dev, size_t size,
 				       dma_addr_t *dma_handle, gfp_t flag,
 				       unsigned long attrs)
 {
@@ -42,7 +42,7 @@ static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 #endif
 }
 
-static void dma_direct_free_coherent(struct device *dev, size_t size,
+static void dma_nommu_free_coherent(struct device *dev, size_t size,
 				     void *vaddr, dma_addr_t dma_handle,
 				     unsigned long attrs)
 {
@@ -69,7 +69,7 @@ static inline void __dma_sync(unsigned long paddr,
 	}
 }
 
-static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
+static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl,
 			     int nents, enum dma_data_direction direction,
 			     unsigned long attrs)
 {
@@ -89,12 +89,12 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
-static int dma_direct_dma_supported(struct device *dev, u64 mask)
+static int dma_nommu_dma_supported(struct device *dev, u64 mask)
 {
 	return 1;
 }
 
-static inline dma_addr_t dma_direct_map_page(struct device *dev,
+static inline dma_addr_t dma_nommu_map_page(struct device *dev,
 					     struct page *page,
 					     unsigned long offset,
 					     size_t size,
@@ -106,7 +106,7 @@ static inline dma_addr_t dma_direct_map_page(struct device *dev,
 	return page_to_phys(page) + offset;
 }
 
-static inline void dma_direct_unmap_page(struct device *dev,
+static inline void dma_nommu_unmap_page(struct device *dev,
 					 dma_addr_t dma_address,
 					 size_t size,
 					 enum dma_data_direction direction,
@@ -122,7 +122,7 @@ static inline void dma_direct_unmap_page(struct device *dev,
 }
 
 static inline void
-dma_direct_sync_single_for_cpu(struct device *dev,
+dma_nommu_sync_single_for_cpu(struct device *dev,
 			       dma_addr_t dma_handle, size_t size,
 			       enum dma_data_direction direction)
 {
@@ -136,7 +136,7 @@ dma_direct_sync_single_for_cpu(struct device *dev,
 }
 
 static inline void
-dma_direct_sync_single_for_device(struct device *dev,
+dma_nommu_sync_single_for_device(struct device *dev,
 				  dma_addr_t dma_handle, size_t size,
 				  enum dma_data_direction direction)
 {
@@ -150,7 +150,7 @@ dma_direct_sync_single_for_device(struct device *dev,
 }
 
 static inline void
-dma_direct_sync_sg_for_cpu(struct device *dev,
+dma_nommu_sync_sg_for_cpu(struct device *dev,
 			   struct scatterlist *sgl, int nents,
 			   enum dma_data_direction direction)
 {
@@ -164,7 +164,7 @@ dma_direct_sync_sg_for_cpu(struct device *dev,
 }
 
 static inline void
-dma_direct_sync_sg_for_device(struct device *dev,
+dma_nommu_sync_sg_for_device(struct device *dev,
 			      struct scatterlist *sgl, int nents,
 			      enum dma_data_direction direction)
 {
@@ -178,7 +178,7 @@ dma_direct_sync_sg_for_device(struct device *dev,
 }
 
 static
-int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
+int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 			     void *cpu_addr, dma_addr_t handle, size_t size,
 			     unsigned long attrs)
 {
@@ -204,20 +204,20 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 #endif
 }
 
-const struct dma_map_ops dma_direct_ops = {
-	.alloc		= dma_direct_alloc_coherent,
-	.free		= dma_direct_free_coherent,
-	.mmap		= dma_direct_mmap_coherent,
-	.map_sg		= dma_direct_map_sg,
-	.dma_supported	= dma_direct_dma_supported,
-	.map_page	= dma_direct_map_page,
-	.unmap_page	= dma_direct_unmap_page,
-	.sync_single_for_cpu		= dma_direct_sync_single_for_cpu,
-	.sync_single_for_device		= dma_direct_sync_single_for_device,
-	.sync_sg_for_cpu		= dma_direct_sync_sg_for_cpu,
-	.sync_sg_for_device		= dma_direct_sync_sg_for_device,
+const struct dma_map_ops dma_nommu_ops = {
+	.alloc			= dma_nommu_alloc_coherent,
+	.free			= dma_nommu_free_coherent,
+	.mmap			= dma_nommu_mmap_coherent,
+	.map_sg			= dma_nommu_map_sg,
+	.dma_supported		= dma_nommu_dma_supported,
+	.map_page		= dma_nommu_map_page,
+	.unmap_page		= dma_nommu_unmap_page,
+	.sync_single_for_cpu	= dma_nommu_sync_single_for_cpu,
+	.sync_single_for_device	= dma_nommu_sync_single_for_device,
+	.sync_sg_for_cpu	= dma_nommu_sync_sg_for_cpu,
+	.sync_sg_for_device	= dma_nommu_sync_sg_for_device,
 };
-EXPORT_SYMBOL(dma_direct_ops);
+EXPORT_SYMBOL(dma_nommu_ops);
 
 /* Number of entries preallocated for DMA-API debugging */
 #define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-- 
2.14.2


From - Thu Nov 08 21:40:56 2018
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Subject: [PATCH 24/34] dma-direct: rename dma_noop to dma_direct
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The trivial direct mapping implementation already does a virtual to
physical translation which isn't strictly a noop, and will soon learn
to do non-direct but linear physical to dma translations through the
device offset and a few small tricks.  Rename it to a better fitting
name.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
---
 MAINTAINERS                        |  2 +-
 arch/arm/Kconfig                   |  2 +-
 arch/arm/include/asm/dma-mapping.h |  2 +-
 arch/arm/mm/dma-mapping-nommu.c    |  8 ++++----
 arch/m32r/Kconfig                  |  2 +-
 arch/riscv/Kconfig                 |  2 +-
 arch/s390/Kconfig                  |  2 +-
 include/asm-generic/dma-mapping.h  |  2 +-
 include/linux/dma-mapping.h        |  2 +-
 lib/Kconfig                        |  2 +-
 lib/Makefile                       |  2 +-
 lib/{dma-noop.c => dma-direct.c}   | 35 +++++++++++++++--------------------
 12 files changed, 29 insertions(+), 34 deletions(-)
 rename lib/{dma-noop.c => dma-direct.c} (52%)

diff --git a/MAINTAINERS b/MAINTAINERS
index 234e642e7149..2d54e636d625 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4334,7 +4334,7 @@ T:	git git://git.infradead.org/users/hch/dma-mapping.git
 W:	http://git.infradead.org/users/hch/dma-mapping.git
 S:	Supported
 F:	lib/dma-debug.c
-F:	lib/dma-noop.c
+F:	lib/dma-direct.c
 F:	lib/dma-virt.c
 F:	drivers/base/dma-mapping.c
 F:	drivers/base/dma-coherent.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 00d889a37965..430a0aa710d6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -25,7 +25,7 @@ config ARM
 	select CLONE_BACKWARDS
 	select CPU_PM if (SUSPEND || CPU_IDLE)
 	select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
-	select DMA_NOOP_OPS if !MMU
+	select DMA_DIRECT_OPS if !MMU
 	select EDAC_SUPPORT
 	select EDAC_ATOMIC_SCRUB
 	select GENERIC_ALLOCATOR
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index e5d9020c9ee1..8436f6ade57d 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -18,7 +18,7 @@ extern const struct dma_map_ops arm_coherent_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	return IS_ENABLED(CONFIG_MMU) ? &arm_dma_ops : &dma_noop_ops;
+	return IS_ENABLED(CONFIG_MMU) ? &arm_dma_ops : &dma_direct_ops;
 }
 
 #ifdef __arch_page_to_dma
diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index 6db5fc26d154..4d8042521e89 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -22,7 +22,7 @@
 #include "dma.h"
 
 /*
- *  dma_noop_ops is used if
+ *  dma_direct_ops is used if
  *   - MMU/MPU is off
  *   - cpu is v7m w/o cache support
  *   - device is coherent
@@ -39,7 +39,7 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
 				 unsigned long attrs)
 
 {
-	const struct dma_map_ops *ops = &dma_noop_ops;
+	const struct dma_map_ops *ops = &dma_direct_ops;
 	void *ret;
 
 	/*
@@ -70,7 +70,7 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
 			       void *cpu_addr, dma_addr_t dma_addr,
 			       unsigned long attrs)
 {
-	const struct dma_map_ops *ops = &dma_noop_ops;
+	const struct dma_map_ops *ops = &dma_direct_ops;
 
 	if (attrs & DMA_ATTR_NON_CONSISTENT) {
 		ops->free(dev, size, cpu_addr, dma_addr, attrs);
@@ -213,7 +213,7 @@ EXPORT_SYMBOL(arm_nommu_dma_ops);
 
 static const struct dma_map_ops *arm_nommu_get_dma_map_ops(bool coherent)
 {
-	return coherent ? &dma_noop_ops : &arm_nommu_dma_ops;
+	return coherent ? &dma_direct_ops : &arm_nommu_dma_ops;
 }
 
 void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 498398d915c1..dd84ee194579 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -19,7 +19,7 @@ config M32R
 	select MODULES_USE_ELF_RELA
 	select HAVE_DEBUG_STACKOVERFLOW
 	select CPU_NO_EFFICIENT_FFS
-	select DMA_NOOP_OPS
+	select DMA_DIRECT_OPS
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
 
 config SBUS
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 2c6adf12713a..865e14f50c14 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -83,7 +83,7 @@ config PGTABLE_LEVELS
 config HAVE_KPROBES
 	def_bool n
 
-config DMA_NOOP_OPS
+config DMA_DIRECT_OPS
 	def_bool y
 
 menu "Platform type"
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 829c67986db7..9376637229c9 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -140,7 +140,7 @@ config S390
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DMA_API_DEBUG
 	select HAVE_DMA_CONTIGUOUS
-	select DMA_NOOP_OPS
+	select DMA_DIRECT_OPS
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
diff --git a/include/asm-generic/dma-mapping.h b/include/asm-generic/dma-mapping.h
index 164031531d85..880a292d792f 100644
--- a/include/asm-generic/dma-mapping.h
+++ b/include/asm-generic/dma-mapping.h
@@ -4,7 +4,7 @@
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	return &dma_noop_ops;
+	return &dma_direct_ops;
 }
 
 #endif /* _ASM_GENERIC_DMA_MAPPING_H */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index d67742dad904..b626028a3e47 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -136,7 +136,7 @@ struct dma_map_ops {
 	int is_phys;
 };
 
-extern const struct dma_map_ops dma_noop_ops;
+extern const struct dma_map_ops dma_direct_ops;
 extern const struct dma_map_ops dma_virt_ops;
 
 #define DMA_BIT_MASK(n)	(((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
diff --git a/lib/Kconfig b/lib/Kconfig
index c5e84fbcb30b..9d3d649c9dc9 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -409,7 +409,7 @@ config HAS_DMA
 	depends on !NO_DMA
 	default y
 
-config DMA_NOOP_OPS
+config DMA_DIRECT_OPS
 	bool
 	depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
 	default n
diff --git a/lib/Makefile b/lib/Makefile
index d11c48ec8ffd..749851abe85a 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -28,7 +28,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
 
 lib-$(CONFIG_MMU) += ioremap.o
 lib-$(CONFIG_SMP) += cpumask.o
-lib-$(CONFIG_DMA_NOOP_OPS) += dma-noop.o
+lib-$(CONFIG_DMA_DIRECT_OPS) += dma-direct.o
 lib-$(CONFIG_DMA_VIRT_OPS) += dma-virt.o
 
 lib-y	+= kobject.o klist.o
diff --git a/lib/dma-noop.c b/lib/dma-direct.c
similarity index 52%
rename from lib/dma-noop.c
rename to lib/dma-direct.c
index a10185b0c2d4..0ec3262a3148 100644
--- a/lib/dma-noop.c
+++ b/lib/dma-direct.c
@@ -10,9 +10,8 @@
 #include <linux/scatterlist.h>
 #include <linux/pfn.h>
 
-static void *dma_noop_alloc(struct device *dev, size_t size,
-			    dma_addr_t *dma_handle, gfp_t gfp,
-			    unsigned long attrs)
+static void *dma_direct_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -23,24 +22,21 @@ static void *dma_noop_alloc(struct device *dev, size_t size,
 	return ret;
 }
 
-static void dma_noop_free(struct device *dev, size_t size,
-			  void *cpu_addr, dma_addr_t dma_addr,
-			  unsigned long attrs)
+static void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t dma_addr, unsigned long attrs)
 {
 	free_pages((unsigned long)cpu_addr, get_order(size));
 }
 
-static dma_addr_t dma_noop_map_page(struct device *dev, struct page *page,
-				      unsigned long offset, size_t size,
-				      enum dma_data_direction dir,
-				      unsigned long attrs)
+static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size, enum dma_data_direction dir,
+		unsigned long attrs)
 {
 	return page_to_phys(page) + offset - PFN_PHYS(dev->dma_pfn_offset);
 }
 
-static int dma_noop_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
-			     enum dma_data_direction dir,
-			     unsigned long attrs)
+static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
+		int nents, enum dma_data_direction dir, unsigned long attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -58,11 +54,10 @@ static int dma_noop_map_sg(struct device *dev, struct scatterlist *sgl, int nent
 	return nents;
 }
 
-const struct dma_map_ops dma_noop_ops = {
-	.alloc			= dma_noop_alloc,
-	.free			= dma_noop_free,
-	.map_page		= dma_noop_map_page,
-	.map_sg			= dma_noop_map_sg,
+const struct dma_map_ops dma_direct_ops = {
+	.alloc			= dma_direct_alloc,
+	.free			= dma_direct_free,
+	.map_page		= dma_direct_map_page,
+	.map_sg			= dma_direct_map_sg,
 };
-
-EXPORT_SYMBOL(dma_noop_ops);
+EXPORT_SYMBOL(dma_direct_ops);
-- 
2.14.2



From - Thu Nov 08 21:40:56 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 15/34] powerpc: rename dma_direct_ to dma_nommu_
Date: Fri, 12 Jan 2018 09:42:13 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ia64/28604>

We want to use the dma_direct_ namespace for a generic implementation,
so rename powerpc to the second best choice: dma_nommu_.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/powerpc/include/asm/dma-mapping.h    |  8 ++--
 arch/powerpc/kernel/dma-iommu.c           |  2 +-
 arch/powerpc/kernel/dma-swiotlb.c         |  6 +--
 arch/powerpc/kernel/dma.c                 | 68 +++++++++++++++----------------
 arch/powerpc/kernel/pci-common.c          |  2 +-
 arch/powerpc/kernel/setup-common.c        |  2 +-
 arch/powerpc/platforms/cell/iommu.c       | 28 ++++++-------
 arch/powerpc/platforms/pasemi/iommu.c     |  2 +-
 arch/powerpc/platforms/pasemi/setup.c     |  2 +-
 arch/powerpc/platforms/powernv/pci-ioda.c |  4 +-
 arch/powerpc/platforms/pseries/iommu.c    |  2 +-
 arch/powerpc/platforms/pseries/vio.c      |  2 +-
 arch/powerpc/sysdev/dart_iommu.c          |  4 +-
 arch/powerpc/sysdev/fsl_pci.c             |  2 +-
 drivers/misc/cxl/vphb.c                   |  2 +-
 15 files changed, 68 insertions(+), 68 deletions(-)

diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index f6ab51205a85..8fa394520af6 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -19,13 +19,13 @@
 #include <asm/swiotlb.h>
 
 /* Some dma direct funcs must be visible for use in other dma_ops */
-extern void *__dma_direct_alloc_coherent(struct device *dev, size_t size,
+extern void *__dma_nommu_alloc_coherent(struct device *dev, size_t size,
 					 dma_addr_t *dma_handle, gfp_t flag,
 					 unsigned long attrs);
-extern void __dma_direct_free_coherent(struct device *dev, size_t size,
+extern void __dma_nommu_free_coherent(struct device *dev, size_t size,
 				       void *vaddr, dma_addr_t dma_handle,
 				       unsigned long attrs);
-extern int dma_direct_mmap_coherent(struct device *dev,
+extern int dma_nommu_mmap_coherent(struct device *dev,
 				    struct vm_area_struct *vma,
 				    void *cpu_addr, dma_addr_t handle,
 				    size_t size, unsigned long attrs);
@@ -73,7 +73,7 @@ static inline unsigned long device_to_mask(struct device *dev)
 #ifdef CONFIG_PPC64
 extern struct dma_map_ops dma_iommu_ops;
 #endif
-extern const struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_nommu_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 66f33e7f8d40..f9fe2080ceb9 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -114,7 +114,7 @@ int dma_iommu_mapping_error(struct device *dev, dma_addr_t dma_addr)
 struct dma_map_ops dma_iommu_ops = {
 	.alloc			= dma_iommu_alloc_coherent,
 	.free			= dma_iommu_free_coherent,
-	.mmap			= dma_direct_mmap_coherent,
+	.mmap			= dma_nommu_mmap_coherent,
 	.map_sg			= dma_iommu_map_sg,
 	.unmap_sg		= dma_iommu_unmap_sg,
 	.dma_supported		= dma_iommu_dma_supported,
diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index d0ea7860e02b..f1e99b9cee97 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -47,9 +47,9 @@ static u64 swiotlb_powerpc_get_required(struct device *dev)
  * for everything else.
  */
 const struct dma_map_ops swiotlb_dma_ops = {
-	.alloc = __dma_direct_alloc_coherent,
-	.free = __dma_direct_free_coherent,
-	.mmap = dma_direct_mmap_coherent,
+	.alloc = __dma_nommu_alloc_coherent,
+	.free = __dma_nommu_free_coherent,
+	.mmap = dma_nommu_mmap_coherent,
 	.map_sg = swiotlb_map_sg_attrs,
 	.unmap_sg = swiotlb_unmap_sg_attrs,
 	.dma_supported = swiotlb_dma_supported,
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 4194bbbbdb10..6d5d04ccf3b4 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -40,7 +40,7 @@ static u64 __maybe_unused get_pfn_limit(struct device *dev)
 	return pfn;
 }
 
-static int dma_direct_dma_supported(struct device *dev, u64 mask)
+static int dma_nommu_dma_supported(struct device *dev, u64 mask)
 {
 #ifdef CONFIG_PPC64
 	u64 limit = get_dma_offset(dev) + (memblock_end_of_DRAM() - 1);
@@ -62,7 +62,7 @@ static int dma_direct_dma_supported(struct device *dev, u64 mask)
 #endif
 }
 
-void *__dma_direct_alloc_coherent(struct device *dev, size_t size,
+void *__dma_nommu_alloc_coherent(struct device *dev, size_t size,
 				  dma_addr_t *dma_handle, gfp_t flag,
 				  unsigned long attrs)
 {
@@ -119,7 +119,7 @@ void *__dma_direct_alloc_coherent(struct device *dev, size_t size,
 #endif
 }
 
-void __dma_direct_free_coherent(struct device *dev, size_t size,
+void __dma_nommu_free_coherent(struct device *dev, size_t size,
 				void *vaddr, dma_addr_t dma_handle,
 				unsigned long attrs)
 {
@@ -130,7 +130,7 @@ void __dma_direct_free_coherent(struct device *dev, size_t size,
 #endif
 }
 
-static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
+static void *dma_nommu_alloc_coherent(struct device *dev, size_t size,
 				       dma_addr_t *dma_handle, gfp_t flag,
 				       unsigned long attrs)
 {
@@ -139,8 +139,8 @@ static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 	/* The coherent mask may be smaller than the real mask, check if
 	 * we can really use the direct ops
 	 */
-	if (dma_direct_dma_supported(dev, dev->coherent_dma_mask))
-		return __dma_direct_alloc_coherent(dev, size, dma_handle,
+	if (dma_nommu_dma_supported(dev, dev->coherent_dma_mask))
+		return __dma_nommu_alloc_coherent(dev, size, dma_handle,
 						   flag, attrs);
 
 	/* Ok we can't ... do we have an iommu ? If not, fail */
@@ -154,15 +154,15 @@ static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 				    dev_to_node(dev));
 }
 
-static void dma_direct_free_coherent(struct device *dev, size_t size,
+static void dma_nommu_free_coherent(struct device *dev, size_t size,
 				     void *vaddr, dma_addr_t dma_handle,
 				     unsigned long attrs)
 {
 	struct iommu_table *iommu;
 
-	/* See comments in dma_direct_alloc_coherent() */
-	if (dma_direct_dma_supported(dev, dev->coherent_dma_mask))
-		return __dma_direct_free_coherent(dev, size, vaddr, dma_handle,
+	/* See comments in dma_nommu_alloc_coherent() */
+	if (dma_nommu_dma_supported(dev, dev->coherent_dma_mask))
+		return __dma_nommu_free_coherent(dev, size, vaddr, dma_handle,
 						  attrs);
 	/* Maybe we used an iommu ... */
 	iommu = get_iommu_table_base(dev);
@@ -175,7 +175,7 @@ static void dma_direct_free_coherent(struct device *dev, size_t size,
 	iommu_free_coherent(iommu, size, vaddr, dma_handle);
 }
 
-int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
+int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 			     void *cpu_addr, dma_addr_t handle, size_t size,
 			     unsigned long attrs)
 {
@@ -193,7 +193,7 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 			       vma->vm_page_prot);
 }
 
-static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
+static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl,
 			     int nents, enum dma_data_direction direction,
 			     unsigned long attrs)
 {
@@ -213,13 +213,13 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
-static void dma_direct_unmap_sg(struct device *dev, struct scatterlist *sg,
+static void dma_nommu_unmap_sg(struct device *dev, struct scatterlist *sg,
 				int nents, enum dma_data_direction direction,
 				unsigned long attrs)
 {
 }
 
-static u64 dma_direct_get_required_mask(struct device *dev)
+static u64 dma_nommu_get_required_mask(struct device *dev)
 {
 	u64 end, mask;
 
@@ -231,7 +231,7 @@ static u64 dma_direct_get_required_mask(struct device *dev)
 	return mask;
 }
 
-static inline dma_addr_t dma_direct_map_page(struct device *dev,
+static inline dma_addr_t dma_nommu_map_page(struct device *dev,
 					     struct page *page,
 					     unsigned long offset,
 					     size_t size,
@@ -246,7 +246,7 @@ static inline dma_addr_t dma_direct_map_page(struct device *dev,
 	return page_to_phys(page) + offset + get_dma_offset(dev);
 }
 
-static inline void dma_direct_unmap_page(struct device *dev,
+static inline void dma_nommu_unmap_page(struct device *dev,
 					 dma_addr_t dma_address,
 					 size_t size,
 					 enum dma_data_direction direction,
@@ -255,7 +255,7 @@ static inline void dma_direct_unmap_page(struct device *dev,
 }
 
 #ifdef CONFIG_NOT_COHERENT_CACHE
-static inline void dma_direct_sync_sg(struct device *dev,
+static inline void dma_nommu_sync_sg(struct device *dev,
 		struct scatterlist *sgl, int nents,
 		enum dma_data_direction direction)
 {
@@ -266,7 +266,7 @@ static inline void dma_direct_sync_sg(struct device *dev,
 		__dma_sync_page(sg_page(sg), sg->offset, sg->length, direction);
 }
 
-static inline void dma_direct_sync_single(struct device *dev,
+static inline void dma_nommu_sync_single(struct device *dev,
 					  dma_addr_t dma_handle, size_t size,
 					  enum dma_data_direction direction)
 {
@@ -274,24 +274,24 @@ static inline void dma_direct_sync_single(struct device *dev,
 }
 #endif
 
-const struct dma_map_ops dma_direct_ops = {
-	.alloc				= dma_direct_alloc_coherent,
-	.free				= dma_direct_free_coherent,
-	.mmap				= dma_direct_mmap_coherent,
-	.map_sg				= dma_direct_map_sg,
-	.unmap_sg			= dma_direct_unmap_sg,
-	.dma_supported			= dma_direct_dma_supported,
-	.map_page			= dma_direct_map_page,
-	.unmap_page			= dma_direct_unmap_page,
-	.get_required_mask		= dma_direct_get_required_mask,
+const struct dma_map_ops dma_nommu_ops = {
+	.alloc				= dma_nommu_alloc_coherent,
+	.free				= dma_nommu_free_coherent,
+	.mmap				= dma_nommu_mmap_coherent,
+	.map_sg				= dma_nommu_map_sg,
+	.unmap_sg			= dma_nommu_unmap_sg,
+	.dma_supported			= dma_nommu_dma_supported,
+	.map_page			= dma_nommu_map_page,
+	.unmap_page			= dma_nommu_unmap_page,
+	.get_required_mask		= dma_nommu_get_required_mask,
 #ifdef CONFIG_NOT_COHERENT_CACHE
-	.sync_single_for_cpu 		= dma_direct_sync_single,
-	.sync_single_for_device 	= dma_direct_sync_single,
-	.sync_sg_for_cpu 		= dma_direct_sync_sg,
-	.sync_sg_for_device 		= dma_direct_sync_sg,
+	.sync_single_for_cpu 		= dma_nommu_sync_single,
+	.sync_single_for_device 	= dma_nommu_sync_single,
+	.sync_sg_for_cpu 		= dma_nommu_sync_sg,
+	.sync_sg_for_device 		= dma_nommu_sync_sg,
 #endif
 };
-EXPORT_SYMBOL(dma_direct_ops);
+EXPORT_SYMBOL(dma_nommu_ops);
 
 int dma_set_coherent_mask(struct device *dev, u64 mask)
 {
@@ -302,7 +302,7 @@ int dma_set_coherent_mask(struct device *dev, u64 mask)
 		 * is no dma_op->set_coherent_mask() so we have to do
 		 * things the hard way:
 		 */
-		if (get_dma_ops(dev) != &dma_direct_ops ||
+		if (get_dma_ops(dev) != &dma_nommu_ops ||
 		    get_iommu_table_base(dev) == NULL ||
 		    !dma_iommu_dma_supported(dev, mask))
 			return -EIO;
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 0ac7aa346c69..590f4d0a6cb1 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -60,7 +60,7 @@ resource_size_t isa_mem_base;
 EXPORT_SYMBOL(isa_mem_base);
 
 
-static const struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
+static const struct dma_map_ops *pci_dma_ops = &dma_nommu_ops;
 
 void set_pci_dma_ops(const struct dma_map_ops *dma_ops)
 {
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 9d213542a48b..9b89df1e71ab 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -791,7 +791,7 @@ void arch_setup_pdev_archdata(struct platform_device *pdev)
 {
 	pdev->archdata.dma_mask = DMA_BIT_MASK(32);
 	pdev->dev.dma_mask = &pdev->archdata.dma_mask;
- 	set_dma_ops(&pdev->dev, &dma_direct_ops);
+ 	set_dma_ops(&pdev->dev, &dma_nommu_ops);
 }
 
 static __init void print_system_info(void)
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 4b91ad08eefd..12352a58072a 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -541,7 +541,7 @@ static struct cbe_iommu *cell_iommu_for_node(int nid)
 	return NULL;
 }
 
-static unsigned long cell_dma_direct_offset;
+static unsigned long cell_dma_nommu_offset;
 
 static unsigned long dma_iommu_fixed_base;
 
@@ -580,7 +580,7 @@ static void *dma_fixed_alloc_coherent(struct device *dev, size_t size,
 					    device_to_mask(dev), flag,
 					    dev_to_node(dev));
 	else
-		return dma_direct_ops.alloc(dev, size, dma_handle, flag,
+		return dma_nommu_ops.alloc(dev, size, dma_handle, flag,
 					    attrs);
 }
 
@@ -592,7 +592,7 @@ static void dma_fixed_free_coherent(struct device *dev, size_t size,
 		iommu_free_coherent(cell_get_iommu_table(dev), size, vaddr,
 				    dma_handle);
 	else
-		dma_direct_ops.free(dev, size, vaddr, dma_handle, attrs);
+		dma_nommu_ops.free(dev, size, vaddr, dma_handle, attrs);
 }
 
 static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page,
@@ -601,7 +601,7 @@ static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page,
 				     unsigned long attrs)
 {
 	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
-		return dma_direct_ops.map_page(dev, page, offset, size,
+		return dma_nommu_ops.map_page(dev, page, offset, size,
 					       direction, attrs);
 	else
 		return iommu_map_page(dev, cell_get_iommu_table(dev), page,
@@ -614,7 +614,7 @@ static void dma_fixed_unmap_page(struct device *dev, dma_addr_t dma_addr,
 				 unsigned long attrs)
 {
 	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
-		dma_direct_ops.unmap_page(dev, dma_addr, size, direction,
+		dma_nommu_ops.unmap_page(dev, dma_addr, size, direction,
 					  attrs);
 	else
 		iommu_unmap_page(cell_get_iommu_table(dev), dma_addr, size,
@@ -626,7 +626,7 @@ static int dma_fixed_map_sg(struct device *dev, struct scatterlist *sg,
 			   unsigned long attrs)
 {
 	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
-		return dma_direct_ops.map_sg(dev, sg, nents, direction, attrs);
+		return dma_nommu_ops.map_sg(dev, sg, nents, direction, attrs);
 	else
 		return ppc_iommu_map_sg(dev, cell_get_iommu_table(dev), sg,
 					nents, device_to_mask(dev),
@@ -638,7 +638,7 @@ static void dma_fixed_unmap_sg(struct device *dev, struct scatterlist *sg,
 			       unsigned long attrs)
 {
 	if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
-		dma_direct_ops.unmap_sg(dev, sg, nents, direction, attrs);
+		dma_nommu_ops.unmap_sg(dev, sg, nents, direction, attrs);
 	else
 		ppc_iommu_unmap_sg(cell_get_iommu_table(dev), sg, nents,
 				   direction, attrs);
@@ -661,8 +661,8 @@ static void cell_dma_dev_setup(struct device *dev)
 {
 	if (get_pci_dma_ops() == &dma_iommu_ops)
 		set_iommu_table_base(dev, cell_get_iommu_table(dev));
-	else if (get_pci_dma_ops() == &dma_direct_ops)
-		set_dma_offset(dev, cell_dma_direct_offset);
+	else if (get_pci_dma_ops() == &dma_nommu_ops)
+		set_dma_offset(dev, cell_dma_nommu_offset);
 	else
 		BUG();
 }
@@ -810,14 +810,14 @@ static int __init cell_iommu_init_disabled(void)
 	unsigned long base = 0, size;
 
 	/* When no iommu is present, we use direct DMA ops */
-	set_pci_dma_ops(&dma_direct_ops);
+	set_pci_dma_ops(&dma_nommu_ops);
 
 	/* First make sure all IOC translation is turned off */
 	cell_disable_iommus();
 
 	/* If we have no Axon, we set up the spider DMA magic offset */
 	if (of_find_node_by_name(NULL, "axon") == NULL)
-		cell_dma_direct_offset = SPIDER_DMA_OFFSET;
+		cell_dma_nommu_offset = SPIDER_DMA_OFFSET;
 
 	/* Now we need to check to see where the memory is mapped
 	 * in PCI space. We assume that all busses use the same dma
@@ -851,13 +851,13 @@ static int __init cell_iommu_init_disabled(void)
 		return -ENODEV;
 	}
 
-	cell_dma_direct_offset += base;
+	cell_dma_nommu_offset += base;
 
-	if (cell_dma_direct_offset != 0)
+	if (cell_dma_nommu_offset != 0)
 		cell_pci_controller_ops.dma_dev_setup = cell_pci_dma_dev_setup;
 
 	printk("iommu: disabled, direct DMA offset is 0x%lx\n",
-	       cell_dma_direct_offset);
+	       cell_dma_nommu_offset);
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index 7fec04de27fc..78b80cbd9768 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -186,7 +186,7 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev)
 	 */
 	if (dev->vendor == 0x1959 && dev->device == 0xa007 &&
 	    !firmware_has_feature(FW_FEATURE_LPAR)) {
-		dev->dev.dma_ops = &dma_direct_ops;
+		dev->dev.dma_ops = &dma_nommu_ops;
 		/*
 		 * Set the coherent DMA mask to prevent the iommu
 		 * being used unnecessarily
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index c4a3e93dc324..d0b8ae53660d 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -363,7 +363,7 @@ static int pcmcia_notify(struct notifier_block *nb, unsigned long action,
 		return 0;
 
 	/* We use the direct ops for localbus */
-	dev->dma_ops = &dma_direct_ops;
+	dev->dma_ops = &dma_nommu_ops;
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 749055553064..9582aeb1fe4c 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1850,7 +1850,7 @@ static int pnv_pci_ioda_dma_set_mask(struct pci_dev *pdev, u64 dma_mask)
 
 	if (bypass) {
 		dev_info(&pdev->dev, "Using 64-bit DMA iommu bypass\n");
-		set_dma_ops(&pdev->dev, &dma_direct_ops);
+		set_dma_ops(&pdev->dev, &dma_nommu_ops);
 	} else {
 		/*
 		 * If the device can't set the TCE bypass bit but still wants
@@ -1868,7 +1868,7 @@ static int pnv_pci_ioda_dma_set_mask(struct pci_dev *pdev, u64 dma_mask)
 				return rc;
 			/* 4GB offset bypasses 32-bit space */
 			set_dma_offset(&pdev->dev, (1ULL << 32));
-			set_dma_ops(&pdev->dev, &dma_direct_ops);
+			set_dma_ops(&pdev->dev, &dma_nommu_ops);
 		} else if (dma_mask >> 32 && dma_mask != DMA_BIT_MASK(64)) {
 			/*
 			 * Fail the request if a DMA mask between 32 and 64 bits
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 69921f72e2da..eaa11334fc8c 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1231,7 +1231,7 @@ static int dma_set_mask_pSeriesLP(struct device *dev, u64 dma_mask)
 			if (dma_offset != 0) {
 				dev_info(dev, "Using 64-bit direct DMA at offset %llx\n", dma_offset);
 				set_dma_offset(dev, dma_offset);
-				set_dma_ops(dev, &dma_direct_ops);
+				set_dma_ops(dev, &dma_nommu_ops);
 				ddw_enabled = true;
 			}
 		}
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index d86938260a86..49e04ec19238 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -618,7 +618,7 @@ static u64 vio_dma_get_required_mask(struct device *dev)
 static const struct dma_map_ops vio_dma_mapping_ops = {
 	.alloc             = vio_dma_iommu_alloc_coherent,
 	.free              = vio_dma_iommu_free_coherent,
-	.mmap		   = dma_direct_mmap_coherent,
+	.mmap		   = dma_nommu_mmap_coherent,
 	.map_sg            = vio_dma_iommu_map_sg,
 	.unmap_sg          = vio_dma_iommu_unmap_sg,
 	.map_page          = vio_dma_iommu_map_page,
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 3573d54b2770..a6198d4f0f03 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -402,7 +402,7 @@ static int dart_dma_set_mask(struct device *dev, u64 dma_mask)
 	 */
 	if (dart_device_on_pcie(dev) && dma_mask >= DMA_BIT_MASK(40)) {
 		dev_info(dev, "Using 64-bit DMA iommu bypass\n");
-		set_dma_ops(dev, &dma_direct_ops);
+		set_dma_ops(dev, &dma_nommu_ops);
 	} else {
 		dev_info(dev, "Using 32-bit DMA via iommu\n");
 		set_dma_ops(dev, &dma_iommu_ops);
@@ -446,7 +446,7 @@ void __init iommu_init_early_dart(struct pci_controller_ops *controller_ops)
 	controller_ops->dma_bus_setup = NULL;
 
 	/* Setup pci_dma ops */
-	set_pci_dma_ops(&dma_direct_ops);
+	set_pci_dma_ops(&dma_nommu_ops);
 }
 
 #ifdef CONFIG_PM
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 22d98057f773..e4d0133bbeeb 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -135,7 +135,7 @@ static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask)
 	 * mapping that allows addressing any RAM address from across PCI.
 	 */
 	if (dev_is_pci(dev) && dma_mask >= pci64_dma_offset * 2 - 1) {
-		set_dma_ops(dev, &dma_direct_ops);
+		set_dma_ops(dev, &dma_nommu_ops);
 		set_dma_offset(dev, pci64_dma_offset);
 	}
 
diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c
index 512a4897dbf6..7fd0bdc1436a 100644
--- a/drivers/misc/cxl/vphb.c
+++ b/drivers/misc/cxl/vphb.c
@@ -54,7 +54,7 @@ static bool cxl_pci_enable_device_hook(struct pci_dev *dev)
 		return false;
 	}
 
-	set_dma_ops(&dev->dev, &dma_direct_ops);
+	set_dma_ops(&dev->dev, &dma_nommu_ops);
 	set_dma_offset(&dev->dev, PAGE_OFFSET);
 
 	return _cxl_pci_associate_default_context(dev, afu);
-- 
2.14.2

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From - Thu Nov 08 21:40:56 2018
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Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 19/34] s390: move s390_pci_dma_ops to asm/pci_dma.h
Date: Fri, 12 Jan 2018 09:42:17 +0100
Lines: 41
Approved: news@gmane.org
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To: iommu@lists.linux-foundation.org
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This is not needed in drivers, so move it to a private header.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/s390/include/asm/dma-mapping.h | 2 --
 arch/s390/include/asm/pci_dma.h     | 3 +++
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 2ec7240c1ada..bdc2455483f6 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -9,8 +9,6 @@
 #include <linux/dma-debug.h>
 #include <linux/io.h>
 
-extern const struct dma_map_ops s390_pci_dma_ops;
-
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 	return &dma_noop_ops;
diff --git a/arch/s390/include/asm/pci_dma.h b/arch/s390/include/asm/pci_dma.h
index e8d9161fa17a..419fac7a62c0 100644
--- a/arch/s390/include/asm/pci_dma.h
+++ b/arch/s390/include/asm/pci_dma.h
@@ -201,4 +201,7 @@ void dma_cleanup_tables(unsigned long *);
 unsigned long *dma_walk_cpu_trans(unsigned long *rto, dma_addr_t dma_addr);
 void dma_update_cpu_trans(unsigned long *entry, void *page_addr, int flags);
 
+extern const struct dma_map_ops s390_pci_dma_ops;
+
+
 #endif
-- 
2.14.2

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From - Thu Nov 08 21:40:56 2018
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Subject: [PATCH 27/34] dma-direct: add support for CMA allocation
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/41464>

Try the CMA allocator for coherent allocations if supported.

Roughly modelled after the x86 code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/dma-direct.c | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 32fd4d9e4c47..a9ae98be7af3 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -7,6 +7,7 @@
 #include <linux/mm.h>
 #include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
+#include <linux/dma-contiguous.h>
 #include <linux/pfn.h>
 
 #define DIRECT_MAPPING_ERROR		0
@@ -29,19 +30,30 @@ check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
 static void *dma_direct_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
-	void *ret;
+	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
+	int page_order = get_order(size);
+	struct page *page = NULL;
 
-	ret = (void *)__get_free_pages(gfp, get_order(size));
-	if (ret)
-		*dma_handle = phys_to_dma(dev, virt_to_phys(ret));
+	/* CMA can be used only in the context which permits sleeping */
+	if (gfpflags_allow_blocking(gfp))
+		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
+	if (!page)
+		page = alloc_pages(gfp, page_order);
+	if (!page)
+		return NULL;
 
-	return ret;
+	*dma_handle = phys_to_dma(dev, page_to_phys(page));
+	memset(page_address(page), 0, size);
+	return page_address(page);
 }
 
 static void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		dma_addr_t dma_addr, unsigned long attrs)
 {
-	free_pages((unsigned long)cpu_addr, get_order(size));
+	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
+
+	if (!dma_release_from_contiguous(dev, virt_to_page(cpu_addr), count))
+		free_pages((unsigned long)cpu_addr, get_order(size));
 }
 
 static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
-- 
2.14.2



From - Thu Nov 08 21:40:56 2018
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Subject: [PATCH 28/34] dma-direct: use node local allocations for coherent memory
Date: Fri, 12 Jan 2018 09:42:26 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.cross-arch/41465>

To preserve the x86 behavior.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
---
 lib/dma-direct.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index a9ae98be7af3..f04a424f91fa 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -38,7 +38,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 	if (gfpflags_allow_blocking(gfp))
 		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
 	if (!page)
-		page = alloc_pages(gfp, page_order);
+		page = alloc_pages_node(dev_to_node(dev), gfp, page_order);
 	if (!page)
 		return NULL;
 
-- 
2.14.2



From - Thu Nov 08 21:40:56 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.cross-arch,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel
Subject: [PATCH 32/34] dma-direct: reject too small dma masks
Date: Fri, 12 Jan 2018 09:42:30 +0100
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
---
 include/linux/dma-direct.h |  1 +
 lib/dma-direct.c           | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 4788bf0bf683..bcdb1a3e4b1f 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -42,5 +42,6 @@ void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 		gfp_t gfp, unsigned long attrs);
 void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		dma_addr_t dma_addr, unsigned long attrs);
+int dma_direct_supported(struct device *dev, u64 mask);
 
 #endif /* _LINUX_DMA_DIRECT_H */
diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 784a68dfdbe3..40b1f92f2214 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -122,6 +122,24 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
+int dma_direct_supported(struct device *dev, u64 mask)
+{
+#ifdef CONFIG_ZONE_DMA
+	if (mask < DMA_BIT_MASK(ARCH_ZONE_DMA_BITS))
+		return 0;
+#else
+	/*
+	 * Because 32-bit DMA masks are so common we expect every architecture
+	 * to be able to satisfy them - either by not supporting more physical
+	 * memory, or by providing a ZONE_DMA32.  If neither is the case, the
+	 * architecture needs to use an IOMMU instead of the direct mapping.
+	 */
+	if (mask < DMA_BIT_MASK(32))
+		return 0;
+#endif
+	return 1;
+}
+
 static int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
 	return dma_addr == DIRECT_MAPPING_ERROR;
@@ -132,6 +150,7 @@ const struct dma_map_ops dma_direct_ops = {
 	.free			= dma_direct_free,
 	.map_page		= dma_direct_map_page,
 	.map_sg			= dma_direct_map_sg,
+	.dma_supported		= dma_direct_supported,
 	.mapping_error		= dma_direct_mapping_error,
 };
 EXPORT_SYMBOL(dma_direct_ops);
-- 
2.14.2



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Subject: [PATCH 33/34] cris: use dma-direct
Date: Fri, 12 Jan 2018 09:42:31 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/27259>

cris currently has an incomplete direct mapping dma_map_ops implementation
if PCI support is enabled.  Replace it with the fully feature generic
dma-direct implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
---
 arch/cris/Kconfig                       |  4 ++
 arch/cris/arch-v32/drivers/pci/Makefile |  2 +-
 arch/cris/arch-v32/drivers/pci/dma.c    | 77 ---------------------------------
 arch/cris/include/asm/Kbuild            |  1 +
 arch/cris/include/asm/dma-mapping.h     | 20 ---------
 5 files changed, 6 insertions(+), 98 deletions(-)
 delete mode 100644 arch/cris/arch-v32/drivers/pci/dma.c
 delete mode 100644 arch/cris/include/asm/dma-mapping.h

diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 54d3f426763b..cd5a0865c97f 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -33,6 +33,9 @@ config GENERIC_CALIBRATE_DELAY
 config NO_IOPORT_MAP
 	def_bool y if !PCI
 
+config NO_DMA
+	def_bool y if !PCI
+
 config FORCE_MAX_ZONEORDER
 	int
 	default 6
@@ -72,6 +75,7 @@ config CRIS
 	select GENERIC_SCHED_CLOCK if ETRAX_ARCH_V32
 	select HAVE_DEBUG_BUGVERBOSE if ETRAX_ARCH_V32
 	select HAVE_NMI
+	select DMA_DIRECT_OPS if PCI
 
 config HZ
 	int
diff --git a/arch/cris/arch-v32/drivers/pci/Makefile b/arch/cris/arch-v32/drivers/pci/Makefile
index bff7482f2444..93c8be6170b1 100644
--- a/arch/cris/arch-v32/drivers/pci/Makefile
+++ b/arch/cris/arch-v32/drivers/pci/Makefile
@@ -2,4 +2,4 @@
 # Makefile for Etrax cardbus driver
 #
 
-obj-$(CONFIG_ETRAX_CARDBUS)        += bios.o dma.o
+obj-$(CONFIG_ETRAX_CARDBUS)        += bios.o
diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
deleted file mode 100644
index 8c3802244ef3..000000000000
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ /dev/null
@@ -1,77 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Dynamic DMA mapping support.
- *
- * On cris there is no hardware dynamic DMA address translation,
- * so consistent alloc/free are merely page allocation/freeing.
- * The rest of the dynamic DMA mapping interface is implemented
- * in asm/pci.h.
- *
- * Borrowed from i386.
- */
-
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/pci.h>
-#include <linux/gfp.h>
-#include <asm/io.h>
-
-static void *v32_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
-{
-	void *ret;
-
-	if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff))
-		gfp |= GFP_DMA;
-
-	ret = (void *)__get_free_pages(gfp,  get_order(size));
-
-	if (ret != NULL) {
-		memset(ret, 0, size);
-		*dma_handle = virt_to_phys(ret);
-	}
-	return ret;
-}
-
-static void v32_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t dma_handle, unsigned long attrs)
-{
-	free_pages((unsigned long)vaddr, get_order(size));
-}
-
-static inline dma_addr_t v32_dma_map_page(struct device *dev,
-		struct page *page, unsigned long offset, size_t size,
-		enum dma_data_direction direction, unsigned long attrs)
-{
-	return page_to_phys(page) + offset;
-}
-
-static inline int v32_dma_map_sg(struct device *dev, struct scatterlist *sg,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	printk("Map sg\n");
-	return nents;
-}
-
-static inline int v32_dma_supported(struct device *dev, u64 mask)
-{
-        /*
-         * we fall back to GFP_DMA when the mask isn't all 1s,
-         * so we can't guarantee allocations that must be
-         * within a tighter range than GFP_DMA..
-         */
-        if (mask < 0x00ffffff)
-                return 0;
-	return 1;
-}
-
-const struct dma_map_ops v32_dma_ops = {
-	.alloc			= v32_dma_alloc,
-	.free			= v32_dma_free,
-	.map_page		= v32_dma_map_page,
-	.map_sg                 = v32_dma_map_sg,
-	.dma_supported		= v32_dma_supported,
-};
-EXPORT_SYMBOL(v32_dma_ops);
diff --git a/arch/cris/include/asm/Kbuild b/arch/cris/include/asm/Kbuild
index 460349cb147f..8cf45ac30c1b 100644
--- a/arch/cris/include/asm/Kbuild
+++ b/arch/cris/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += cmpxchg.h
 generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
deleted file mode 100644
index 1553bdb30a0c..000000000000
--- a/arch/cris/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_CRIS_DMA_MAPPING_H
-#define _ASM_CRIS_DMA_MAPPING_H
-
-#ifdef CONFIG_PCI
-extern const struct dma_map_ops v32_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &v32_dma_ops;
-}
-#else
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	BUG();
-	return NULL;
-}
-#endif
-
-#endif
-- 
2.14.2

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From - Thu Nov 08 21:40:57 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 13/34] dma-mapping: move dma_mark_clean to dma-direct.h
Date: Fri, 12 Jan 2018 09:42:11 +0100
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Approved: news@gmane.org
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And unlike the other helpers we don't require a <asm/dma-direct.h> as
this helper is a special case for ia64 only, and this keeps it as
simple as possible.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/arm/include/asm/dma-mapping.h       | 2 --
 arch/arm64/include/asm/dma-mapping.h     | 4 ----
 arch/ia64/Kconfig                        | 1 +
 arch/ia64/include/asm/dma.h              | 2 --
 arch/mips/include/asm/dma-mapping.h      | 2 --
 arch/powerpc/include/asm/swiotlb.h       | 2 --
 arch/tile/include/asm/dma-mapping.h      | 2 --
 arch/unicore32/include/asm/dma-mapping.h | 2 --
 arch/x86/include/asm/swiotlb.h           | 2 --
 include/linux/dma-direct.h               | 9 +++++++++
 10 files changed, 10 insertions(+), 18 deletions(-)

diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 5fb1b7fbdfbe..e5d9020c9ee1 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -109,8 +109,6 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size) { }
-
 /**
  * arm_dma_alloc - allocate consistent memory for DMA
  * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 400fa67d3b5a..b7847eb8a7bb 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -50,9 +50,5 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size)
-{
-}
-
 #endif	/* __KERNEL__ */
 #endif	/* __ASM_DMA_MAPPING_H */
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 49583c5a5d44..4d18fca885ee 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -33,6 +33,7 @@ config IA64
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_VIRT_CPU_ACCOUNTING
+	select ARCH_HAS_DMA_MARK_CLEAN
 	select ARCH_HAS_SG_CHAIN
 	select VIRT_TO_BUS
 	select ARCH_DISCARD_MEMBLOCK
diff --git a/arch/ia64/include/asm/dma.h b/arch/ia64/include/asm/dma.h
index 186850eec934..23604d6a2cb2 100644
--- a/arch/ia64/include/asm/dma.h
+++ b/arch/ia64/include/asm/dma.h
@@ -20,6 +20,4 @@ extern unsigned long MAX_DMA_ADDRESS;
 
 #define free_dma(x)
 
-void dma_mark_clean(void *addr, size_t size);
-
 #endif /* _ASM_IA64_DMA_H */
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 676c14cfc580..886e75a383f2 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -17,8 +17,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return mips_dma_map_ops;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 #define arch_setup_dma_ops arch_setup_dma_ops
 static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base,
 				      u64 size, const struct iommu_ops *iommu,
diff --git a/arch/powerpc/include/asm/swiotlb.h b/arch/powerpc/include/asm/swiotlb.h
index 01d45a5fd00b..9341ee804d19 100644
--- a/arch/powerpc/include/asm/swiotlb.h
+++ b/arch/powerpc/include/asm/swiotlb.h
@@ -15,8 +15,6 @@
 
 extern const struct dma_map_ops swiotlb_dma_ops;
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 extern unsigned int ppc_swiotlb_enable;
 int __init swiotlb_setup_bus_notifier(void);
 
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 75b8aaa4e70b..d25fce101fc0 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -44,8 +44,6 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
 	dev->archdata.dma_offset = off;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 #define HAVE_ARCH_DMA_SET_MASK 1
 int dma_set_mask(struct device *dev, u64 mask);
 
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 5cb250bf2d8c..f2bfec273aa7 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -25,7 +25,5 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &swiotlb_dma_map_ops;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 #endif /* __KERNEL__ */
 #endif
diff --git a/arch/x86/include/asm/swiotlb.h b/arch/x86/include/asm/swiotlb.h
index bdf9aed40403..1c6a6cb230ff 100644
--- a/arch/x86/include/asm/swiotlb.h
+++ b/arch/x86/include/asm/swiotlb.h
@@ -28,8 +28,6 @@ static inline void pci_swiotlb_late_init(void)
 }
 #endif
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
 extern void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 					dma_addr_t *dma_handle, gfp_t flags,
 					unsigned long attrs);
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 2cc1b6558944..10e924b7cba7 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -29,4 +29,13 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 	return addr + size - 1 <= *dev->dma_mask;
 }
 #endif /* !CONFIG_ARCH_HAS_PHYS_TO_DMA */
+
+#ifdef CONFIG_ARCH_HAS_DMA_MARK_CLEAN
+void dma_mark_clean(void *addr, size_t size);
+#else
+static inline void dma_mark_clean(void *addr, size_t size)
+{
+}
+#endif /* CONFIG_ARCH_HAS_DMA_MARK_CLEAN */
+
 #endif /* _LINUX_DMA_DIRECT_H */
-- 
2.14.2


From - Thu Nov 08 21:40:57 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 34/34] h8300: use dma-direct
Date: Fri, 12 Jan 2018 09:42:32 +0100
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2665100>

Replace the bare-bones h8300 direct dma mapping implementation with
the fully featured generic dma-direct one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/h8300/Kconfig                   |  1 +
 arch/h8300/include/asm/Kbuild        |  1 +
 arch/h8300/include/asm/dma-mapping.h | 12 -------
 arch/h8300/kernel/Makefile           |  2 +-
 arch/h8300/kernel/dma.c              | 66 ------------------------------------
 5 files changed, 3 insertions(+), 79 deletions(-)
 delete mode 100644 arch/h8300/include/asm/dma-mapping.h
 delete mode 100644 arch/h8300/kernel/dma.c

diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index f8d3fde08190..091d6d04b5e5 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -23,6 +23,7 @@ config H8300
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_HASH
 	select CPU_NO_EFFICIENT_FFS
+	select DMA_DIRECT_OPS
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
index bc077491d299..642752c94306 100644
--- a/arch/h8300/include/asm/Kbuild
+++ b/arch/h8300/include/asm/Kbuild
@@ -9,6 +9,7 @@ generic-y += delay.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
deleted file mode 100644
index 21bb1fc3a6f1..000000000000
--- a/arch/h8300/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _H8300_DMA_MAPPING_H
-#define _H8300_DMA_MAPPING_H
-
-extern const struct dma_map_ops h8300_dma_map_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &h8300_dma_map_ops;
-}
-
-#endif
diff --git a/arch/h8300/kernel/Makefile b/arch/h8300/kernel/Makefile
index b62e830525c6..307aa51576dd 100644
--- a/arch/h8300/kernel/Makefile
+++ b/arch/h8300/kernel/Makefile
@@ -7,7 +7,7 @@ extra-y := vmlinux.lds
 
 obj-y := process.o traps.o ptrace.o \
 	 signal.o setup.o syscalls.o \
-	 irq.o entry.o dma.o
+	 irq.o entry.o
 
 obj-$(CONFIG_ROMKERNEL) += head_rom.o
 obj-$(CONFIG_RAMKERNEL) += head_ram.o
diff --git a/arch/h8300/kernel/dma.c b/arch/h8300/kernel/dma.c
deleted file mode 100644
index d44ba5db4ac3..000000000000
--- a/arch/h8300/kernel/dma.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-#include <linux/dma-mapping.h>
-#include <linux/kernel.h>
-#include <linux/scatterlist.h>
-#include <linux/module.h>
-#include <asm/pgalloc.h>
-
-static void *dma_alloc(struct device *dev, size_t size,
-		       dma_addr_t *dma_handle, gfp_t gfp,
-		       unsigned long attrs)
-{
-	void *ret;
-
-	if (dev == NULL || (*dev->dma_mask < 0xffffffff))
-		gfp |= GFP_DMA;
-	ret = (void *)__get_free_pages(gfp, get_order(size));
-
-	if (ret != NULL) {
-		memset(ret, 0, size);
-		*dma_handle = virt_to_phys(ret);
-	}
-	return ret;
-}
-
-static void dma_free(struct device *dev, size_t size,
-		     void *vaddr, dma_addr_t dma_handle,
-		     unsigned long attrs)
-
-{
-	free_pages((unsigned long)vaddr, get_order(size));
-}
-
-static dma_addr_t map_page(struct device *dev, struct page *page,
-				  unsigned long offset, size_t size,
-				  enum dma_data_direction direction,
-				  unsigned long attrs)
-{
-	return page_to_phys(page) + offset;
-}
-
-static int map_sg(struct device *dev, struct scatterlist *sgl,
-		  int nents, enum dma_data_direction direction,
-		  unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sgl, sg, nents, i) {
-		sg->dma_address = sg_phys(sg);
-	}
-
-	return nents;
-}
-
-const struct dma_map_ops h8300_dma_map_ops = {
-	.alloc = dma_alloc,
-	.free = dma_free,
-	.map_page = map_page,
-	.map_sg = map_sg,
-};
-EXPORT_SYMBOL(h8300_dma_map_ops);
-- 
2.14.2



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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 22/34] dma-mapping: add an arch_dma_supported hook
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Xref: news.gmane.org gmane.linux.kernel.iommu:22168 gmane.linux.ports.mips.general:63309 gmane.linux.ports.ia64:28612 gmane.linux.ports.sh.devel:56313 gmane.linux.ports.sparc:27262 gmane.linux.kernel.cross-arch:41470 gmane.linux.ports.hexagon:1577 gmane.linux.kernel.arc:3361 gmane.linux.kernel.metag:1654 gmane.linux.ports.arm.kernel:625667 gmane.linux.ports.parisc:28254 gmane.linux.kernel:2665101 gmane.linux.ports.alpha:4751 gmane.linux.ports.ppc64.devel:152036
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22168>

To implement the x86 forbid_dac and iommu_sac_force we want an arch hook
so that it can apply the global options across all dma_map_ops
implementations.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/x86/include/asm/dma-mapping.h |  3 +++
 arch/x86/kernel/pci-dma.c          | 19 ++++++++++++-------
 include/linux/dma-mapping.h        | 11 +++++++++++
 3 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index dfdc9357a349..6277c83c0eb1 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -30,6 +30,9 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return dma_ops;
 }
 
+int arch_dma_supported(struct device *dev, u64 mask);
+#define arch_dma_supported arch_dma_supported
+
 bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
 #define arch_dma_alloc_attrs arch_dma_alloc_attrs
 
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 61a8f1cb3829..df7ab02f959f 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -215,7 +215,7 @@ static __init int iommu_setup(char *p)
 }
 early_param("iommu", iommu_setup);
 
-int x86_dma_supported(struct device *dev, u64 mask)
+int arch_dma_supported(struct device *dev, u64 mask)
 {
 #ifdef CONFIG_PCI
 	if (mask > 0xffffffff && forbid_dac > 0) {
@@ -224,12 +224,6 @@ int x86_dma_supported(struct device *dev, u64 mask)
 	}
 #endif
 
-	/* Copied from i386. Doesn't make much sense, because it will
-	   only work for pci_alloc_coherent.
-	   The caller just has to use GFP_DMA in this case. */
-	if (mask < DMA_BIT_MASK(24))
-		return 0;
-
 	/* Tell the device to use SAC when IOMMU force is on.  This
 	   allows the driver to use cheaper accesses in some cases.
 
@@ -249,6 +243,17 @@ int x86_dma_supported(struct device *dev, u64 mask)
 
 	return 1;
 }
+EXPORT_SYMBOL(arch_dma_supported);
+
+int x86_dma_supported(struct device *dev, u64 mask)
+{
+	/* Copied from i386. Doesn't make much sense, because it will
+	   only work for pci_alloc_coherent.
+	   The caller just has to use GFP_DMA in this case. */
+	if (mask < DMA_BIT_MASK(24))
+		return 0;
+	return 1;
+}
 
 static int __init pci_iommu_init(void)
 {
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 88bcb1a8211d..d67742dad904 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -576,6 +576,14 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 	return 0;
 }
 
+/*
+ * This is a hack for the legacy x86 forbid_dac and iommu_sac_force. Please
+ * don't use this is new code.
+ */
+#ifndef arch_dma_supported
+#define arch_dma_supported(dev, mask)	(1)
+#endif
+
 static inline void dma_check_mask(struct device *dev, u64 mask)
 {
 	if (sme_active() && (mask < (((u64)sme_get_me_mask() << 1) - 1)))
@@ -588,6 +596,9 @@ static inline int dma_supported(struct device *dev, u64 mask)
 
 	if (!ops)
 		return 0;
+	if (!arch_dma_supported(dev, mask))
+		return 0;
+
 	if (!ops->dma_supported)
 		return 1;
 	return ops->dma_supported(dev, mask);
-- 
2.14.2


From - Thu Nov 08 21:40:57 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 20/34] dma-mapping: warn when there is no coherent_dma_mask
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Xref: news.gmane.org gmane.linux.kernel.iommu:22169 gmane.linux.ports.mips.general:63310 gmane.linux.ports.ia64:28613 gmane.linux.ports.sh.devel:56314 gmane.linux.ports.sparc:27263 gmane.linux.kernel.cross-arch:41471 gmane.linux.ports.hexagon:1578 gmane.linux.kernel.arc:3362 gmane.linux.kernel.metag:1655 gmane.linux.ports.arm.kernel:625668 gmane.linux.ports.parisc:28255 gmane.linux.kernel:2665102 gmane.linux.ports.alpha:4752 gmane.linux.ports.ppc64.devel:152037
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22169>

These days all devices should have a DMA coherent mask, and most dma_ops
implementations rely on that fact.  But just to be sure add an assert to
ring the warning bell if that is not the case.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Reviewed-by: Vladimir Murzin <vladimir.murzin-5wv7dgnIgG8@public.gmane.org>
---
 include/linux/dma-mapping.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index d84951865be7..9f28b2fa329e 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -513,6 +513,7 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
 	void *cpu_addr;
 
 	BUG_ON(!ops);
+	WARN_ON_ONCE(!dev->coherent_dma_mask);
 
 	if (dma_alloc_from_dev_coherent(dev, size, dma_handle, &cpu_addr))
 		return cpu_addr;
-- 
2.14.2


From - Thu Nov 08 21:40:57 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 31/34] dma-direct: make dma_direct_{alloc,free} available to other implementations
Date: Fri, 12 Jan 2018 09:42:29 +0100
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Xref: news.gmane.org gmane.linux.ports.sparc:27264 gmane.linux.kernel.iommu:22170 gmane.linux.ports.alpha:4753 gmane.linux.kernel.arc:3363 gmane.linux.ports.arm.kernel:625669 gmane.linux.ports.hexagon:1579 gmane.linux.ports.ia64:28614 gmane.linux.kernel.metag:1656 gmane.linux.ports.mips.general:63311 gmane.linux.ports.parisc:28256 gmane.linux.ports.ppc64.devel:152038 gmane.linux.ports.sh.devel:56315 gmane.linux.kernel.cross-arch:41472 gmane.linux.kernel:2665103
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So that they don't need to indirect through the operation vector.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
---
 arch/arm/mm/dma-mapping-nommu.c | 9 +++------
 include/linux/dma-direct.h      | 5 +++++
 lib/dma-direct.c                | 6 +++---
 3 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index 4d8042521e89..619f24a42d09 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -11,7 +11,7 @@
 
 #include <linux/export.h>
 #include <linux/mm.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
 
 #include <asm/cachetype.h>
@@ -39,7 +39,6 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
 				 unsigned long attrs)
 
 {
-	const struct dma_map_ops *ops = &dma_direct_ops;
 	void *ret;
 
 	/*
@@ -48,7 +47,7 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
 	 */
 
 	if (attrs & DMA_ATTR_NON_CONSISTENT)
-		return ops->alloc(dev, size, dma_handle, gfp, attrs);
+		return dma_direct_alloc(dev, size, dma_handle, gfp, attrs);
 
 	ret = dma_alloc_from_global_coherent(size, dma_handle);
 
@@ -70,10 +69,8 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
 			       void *cpu_addr, dma_addr_t dma_addr,
 			       unsigned long attrs)
 {
-	const struct dma_map_ops *ops = &dma_direct_ops;
-
 	if (attrs & DMA_ATTR_NON_CONSISTENT) {
-		ops->free(dev, size, cpu_addr, dma_addr, attrs);
+		dma_direct_free(dev, size, cpu_addr, dma_addr, attrs);
 	} else {
 		int ret = dma_release_from_global_coherent(get_order(size),
 							   cpu_addr);
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 10e924b7cba7..4788bf0bf683 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -38,4 +38,9 @@ static inline void dma_mark_clean(void *addr, size_t size)
 }
 #endif /* CONFIG_ARCH_HAS_DMA_MARK_CLEAN */
 
+void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs);
+void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t dma_addr, unsigned long attrs);
+
 #endif /* _LINUX_DMA_DIRECT_H */
diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 4e43c2bb7f5f..784a68dfdbe3 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -40,8 +40,8 @@ static bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size)
 	return phys_to_dma(dev, phys) + size - 1 <= dev->coherent_dma_mask;
 }
 
-static void *dma_direct_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	int page_order = get_order(size);
@@ -84,7 +84,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 	return page_address(page);
 }
 
-static void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
+void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		dma_addr_t dma_addr, unsigned long attrs)
 {
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
-- 
2.14.2

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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 23/34] dma-mapping: provide a generic asm/dma-mapping.h
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Xref: news.gmane.org gmane.linux.kernel.iommu:22171 gmane.linux.ports.mips.general:63312 gmane.linux.ports.ia64:28615 gmane.linux.ports.sh.devel:56316 gmane.linux.ports.sparc:27265 gmane.linux.kernel.cross-arch:41473 gmane.linux.ports.hexagon:1580 gmane.linux.kernel.arc:3364 gmane.linux.kernel.metag:1657 gmane.linux.ports.arm.kernel:625670 gmane.linux.ports.parisc:28257 gmane.linux.kernel:2665104 gmane.linux.ports.alpha:4754 gmane.linux.ports.ppc64.devel:152039
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22171>

For architectures that just use the generic dma_noop_ops we can provide
a generic version of dma-mapping.h.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 MAINTAINERS                          |  1 +
 arch/m32r/include/asm/Kbuild         |  1 +
 arch/m32r/include/asm/dma-mapping.h  | 17 -----------------
 arch/riscv/include/asm/Kbuild        |  1 +
 arch/riscv/include/asm/dma-mapping.h | 30 ------------------------------
 arch/s390/include/asm/Kbuild         |  1 +
 arch/s390/include/asm/dma-mapping.h  | 17 -----------------
 include/asm-generic/dma-mapping.h    | 10 ++++++++++
 8 files changed, 14 insertions(+), 64 deletions(-)
 delete mode 100644 arch/m32r/include/asm/dma-mapping.h
 delete mode 100644 arch/riscv/include/asm/dma-mapping.h
 delete mode 100644 arch/s390/include/asm/dma-mapping.h
 create mode 100644 include/asm-generic/dma-mapping.h

diff --git a/MAINTAINERS b/MAINTAINERS
index d2cfdcce1db5..234e642e7149 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4338,6 +4338,7 @@ F:	lib/dma-noop.c
 F:	lib/dma-virt.c
 F:	drivers/base/dma-mapping.c
 F:	drivers/base/dma-coherent.c
+F:	include/asm-generic/dma-mapping.h
 F:	include/linux/dma-direct.h
 F:	include/linux/dma-mapping.h
 
diff --git a/arch/m32r/include/asm/Kbuild b/arch/m32r/include/asm/Kbuild
index 7e11b125c35e..ca83fda8177b 100644
--- a/arch/m32r/include/asm/Kbuild
+++ b/arch/m32r/include/asm/Kbuild
@@ -1,5 +1,6 @@
 generic-y += clkdev.h
 generic-y += current.h
+generic-y += dma-mapping.h
 generic-y += exec.h
 generic-y += extable.h
 generic-y += irq_work.h
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
deleted file mode 100644
index 8967fb659691..000000000000
--- a/arch/m32r/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_M32R_DMA_MAPPING_H
-#define _ASM_M32R_DMA_MAPPING_H
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
-#include <linux/io.h>
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &dma_noop_ops;
-}
-
-#endif /* _ASM_M32R_DMA_MAPPING_H */
diff --git a/arch/riscv/include/asm/Kbuild b/arch/riscv/include/asm/Kbuild
index 970460a0b492..197460ccbf21 100644
--- a/arch/riscv/include/asm/Kbuild
+++ b/arch/riscv/include/asm/Kbuild
@@ -7,6 +7,7 @@ generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
 generic-y += dma-contiguous.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += errno.h
 generic-y += exec.h
diff --git a/arch/riscv/include/asm/dma-mapping.h b/arch/riscv/include/asm/dma-mapping.h
deleted file mode 100644
index 73849e2cc761..000000000000
--- a/arch/riscv/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) 2003-2004 Hewlett-Packard Co
- *	David Mosberger-Tang <davidm-sDzT885Ts8HQT0dZR+AlfA@public.gmane.org>
- * Copyright (C) 2012 ARM Ltd.
- * Copyright (C) 2016 SiFive, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef __ASM_RISCV_DMA_MAPPING_H
-#define __ASM_RISCV_DMA_MAPPING_H
-
-/* Use ops->dma_mapping_error (if it exists) or assume success */
-// #undef DMA_ERROR_CODE
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &dma_noop_ops;
-}
-
-#endif	/* __ASM_RISCV_DMA_MAPPING_H */
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index 048450869328..dade72be127b 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -4,6 +4,7 @@ generic-y += cacheflush.h
 generic-y += clkdev.h
 generic-y += device.h
 generic-y += dma-contiguous.h
+generic-y += dma-mapping.h
 generic-y += div64.h
 generic-y += emergency-restart.h
 generic-y += export.h
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
deleted file mode 100644
index bdc2455483f6..000000000000
--- a/arch/s390/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_S390_DMA_MAPPING_H
-#define _ASM_S390_DMA_MAPPING_H
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
-#include <linux/io.h>
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &dma_noop_ops;
-}
-
-#endif /* _ASM_S390_DMA_MAPPING_H */
diff --git a/include/asm-generic/dma-mapping.h b/include/asm-generic/dma-mapping.h
new file mode 100644
index 000000000000..164031531d85
--- /dev/null
+++ b/include/asm-generic/dma-mapping.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_GENERIC_DMA_MAPPING_H
+#define _ASM_GENERIC_DMA_MAPPING_H
+
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
+{
+	return &dma_noop_ops;
+}
+
+#endif /* _ASM_GENERIC_DMA_MAPPING_H */
-- 
2.14.2


From - Thu Nov 08 21:40:57 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 25/34] dma-direct: use phys_to_dma
Date: Fri, 12 Jan 2018 09:42:23 +0100
Lines: 65
Approved: news@gmane.org
Message-ID: <20180112084232.2857-26-hch@lst.de>
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Xref: news.gmane.org gmane.linux.kernel.iommu:22172 gmane.linux.ports.mips.general:63313 gmane.linux.ports.ia64:28616 gmane.linux.ports.sh.devel:56317 gmane.linux.ports.sparc:27266 gmane.linux.kernel.cross-arch:41474 gmane.linux.ports.hexagon:1581 gmane.linux.kernel.arc:3365 gmane.linux.kernel.metag:1658 gmane.linux.ports.arm.kernel:625671 gmane.linux.ports.parisc:28258 gmane.linux.kernel:2665105 gmane.linux.ports.alpha:4755 gmane.linux.ports.ppc64.devel:152040
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22172>

This means it uses whatever linear remapping scheme that the architecture
provides is used in the generic dma_direct ops.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Reviewed-by: Vladimir Murzin <vladimir.murzin-5wv7dgnIgG8@public.gmane.org>
---
 lib/dma-direct.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 0ec3262a3148..12ea9653781b 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -1,12 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- *	lib/dma-noop.c
- *
- * DMA operations that map to physical addresses without flushing memory.
+ * DMA operations that map physical memory directly without using an IOMMU or
+ * flushing caches.
  */
 #include <linux/export.h>
 #include <linux/mm.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
 #include <linux/pfn.h>
 
@@ -17,7 +16,7 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 
 	ret = (void *)__get_free_pages(gfp, get_order(size));
 	if (ret)
-		*dma_handle = virt_to_phys(ret) - PFN_PHYS(dev->dma_pfn_offset);
+		*dma_handle = phys_to_dma(dev, virt_to_phys(ret));
 
 	return ret;
 }
@@ -32,7 +31,7 @@ static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
 		unsigned long offset, size_t size, enum dma_data_direction dir,
 		unsigned long attrs)
 {
-	return page_to_phys(page) + offset - PFN_PHYS(dev->dma_pfn_offset);
+	return phys_to_dma(dev, page_to_phys(page)) + offset;
 }
 
 static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
@@ -42,12 +41,9 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 	struct scatterlist *sg;
 
 	for_each_sg(sgl, sg, nents, i) {
-		dma_addr_t offset = PFN_PHYS(dev->dma_pfn_offset);
-		void *va;
-
 		BUG_ON(!sg_page(sg));
-		va = sg_virt(sg);
-		sg_dma_address(sg) = (dma_addr_t)virt_to_phys(va) - offset;
+
+		sg_dma_address(sg) = phys_to_dma(dev, sg_phys(sg));
 		sg_dma_len(sg) = sg->length;
 	}
 
-- 
2.14.2


From - Thu Nov 08 21:40:57 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 30/34] dma-direct: retry allocations using GFP_DMA for small masks
Date: Fri, 12 Jan 2018 09:42:28 +0100
Lines: 67
Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.ports.sparc:27267 gmane.linux.kernel.iommu:22173 gmane.linux.ports.alpha:4756 gmane.linux.kernel.arc:3366 gmane.linux.ports.arm.kernel:625672 gmane.linux.ports.hexagon:1582 gmane.linux.ports.ia64:28617 gmane.linux.kernel.metag:1659 gmane.linux.ports.mips.general:63314 gmane.linux.ports.parisc:28259 gmane.linux.ports.ppc64.devel:152041 gmane.linux.ports.sh.devel:56318 gmane.linux.kernel.cross-arch:41475 gmane.linux.kernel:2665106
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/27267>

If an attempt to allocate memory succeeded, but isn't inside the
supported DMA mask, retry the allocation with GFP_DMA set as a
last resort.

Based on the x86 code, but an off by one error in what is now
dma_coherent_ok has been fixed vs the x86 code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/dma-direct.c | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 8f76032ebc3c..4e43c2bb7f5f 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -35,6 +35,11 @@ check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
 	return true;
 }
 
+static bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size)
+{
+	return phys_to_dma(dev, phys) + size - 1 <= dev->coherent_dma_mask;
+}
+
 static void *dma_direct_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
@@ -48,11 +53,29 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 	if (dev->coherent_dma_mask <= DMA_BIT_MASK(32) && !(gfp & GFP_DMA))
 		gfp |= GFP_DMA32;
 
+again:
 	/* CMA can be used only in the context which permits sleeping */
-	if (gfpflags_allow_blocking(gfp))
+	if (gfpflags_allow_blocking(gfp)) {
 		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
+		if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {
+			dma_release_from_contiguous(dev, page, count);
+			page = NULL;
+		}
+	}
 	if (!page)
 		page = alloc_pages_node(dev_to_node(dev), gfp, page_order);
+
+	if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {
+		__free_pages(page, page_order);
+		page = NULL;
+
+		if (dev->coherent_dma_mask < DMA_BIT_MASK(32) &&
+		    !(gfp & GFP_DMA)) {
+			gfp = (gfp & ~GFP_DMA32) | GFP_DMA;
+			goto again;
+		}
+	}
+
 	if (!page)
 		return NULL;
 
-- 
2.14.2

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From - Thu Nov 08 21:40:57 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 26/34] dma-direct: add dma address sanity checks
Date: Fri, 12 Jan 2018 09:42:24 +0100
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Xref: news.gmane.org gmane.linux.kernel.iommu:22174 gmane.linux.ports.mips.general:63315 gmane.linux.ports.ia64:28618 gmane.linux.ports.sh.devel:56319 gmane.linux.ports.sparc:27268 gmane.linux.kernel.cross-arch:41476 gmane.linux.ports.hexagon:1583 gmane.linux.kernel.arc:3367 gmane.linux.kernel.metag:1660 gmane.linux.ports.arm.kernel:625673 gmane.linux.ports.parisc:28260 gmane.linux.kernel:2665107 gmane.linux.ports.alpha:4757 gmane.linux.ports.ppc64.devel:152042
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22174>

Roughly based on the x86 pci-nommu implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 lib/dma-direct.c | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 12ea9653781b..32fd4d9e4c47 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -9,6 +9,23 @@
 #include <linux/scatterlist.h>
 #include <linux/pfn.h>
 
+#define DIRECT_MAPPING_ERROR		0
+
+static bool
+check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
+		const char *caller)
+{
+	if (unlikely(dev && !dma_capable(dev, dma_addr, size))) {
+		if (*dev->dma_mask >= DMA_BIT_MASK(32)) {
+			dev_err(dev,
+				"%s: overflow %pad+%zu of device mask %llx\n",
+				caller, &dma_addr, size, *dev->dma_mask);
+		}
+		return false;
+	}
+	return true;
+}
+
 static void *dma_direct_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
@@ -31,7 +48,11 @@ static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
 		unsigned long offset, size_t size, enum dma_data_direction dir,
 		unsigned long attrs)
 {
-	return phys_to_dma(dev, page_to_phys(page)) + offset;
+	dma_addr_t dma_addr = phys_to_dma(dev, page_to_phys(page)) + offset;
+
+	if (!check_addr(dev, dma_addr, size, __func__))
+		return DIRECT_MAPPING_ERROR;
+	return dma_addr;
 }
 
 static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
@@ -44,16 +65,24 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 		BUG_ON(!sg_page(sg));
 
 		sg_dma_address(sg) = phys_to_dma(dev, sg_phys(sg));
+		if (!check_addr(dev, sg_dma_address(sg), sg->length, __func__))
+			return 0;
 		sg_dma_len(sg) = sg->length;
 	}
 
 	return nents;
 }
 
+static int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+	return dma_addr == DIRECT_MAPPING_ERROR;
+}
+
 const struct dma_map_ops dma_direct_ops = {
 	.alloc			= dma_direct_alloc,
 	.free			= dma_direct_free,
 	.map_page		= dma_direct_map_page,
 	.map_sg			= dma_direct_map_sg,
+	.mapping_error		= dma_direct_mapping_error,
 };
 EXPORT_SYMBOL(dma_direct_ops);
-- 
2.14.2


From - Thu Nov 08 21:40:57 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel.iommu,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: [PATCH 29/34] dma-direct: add support for allocation from ZONE_DMA and ZONE_DMA32
Date: Fri, 12 Jan 2018 09:42:27 +0100
Lines: 53
Approved: news@gmane.org
Message-ID: <20180112084232.2857-30-hch@lst.de>
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This allows to dip into zones for lower memory if they are available.
If one of the zones is not available the corresponding GFP_* flag
will evaluate to 0 so they won't change anything.  We provide an
arch tunable for those architectures that do not use GFP_DMA for
the lowest 24-bits, given that there are a few.

Roughly based on the x86 code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/dma-direct.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index f04a424f91fa..8f76032ebc3c 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -12,6 +12,14 @@
 
 #define DIRECT_MAPPING_ERROR		0
 
+/*
+ * Most architectures use ZONE_DMA for the first 16 Megabytes, but
+ * some use it for entirely different regions:
+ */
+#ifndef ARCH_ZONE_DMA_BITS
+#define ARCH_ZONE_DMA_BITS 24
+#endif
+
 static bool
 check_addr(struct device *dev, dma_addr_t dma_addr, size_t size,
 		const char *caller)
@@ -34,6 +42,12 @@ static void *dma_direct_alloc(struct device *dev, size_t size,
 	int page_order = get_order(size);
 	struct page *page = NULL;
 
+	/* GFP_DMA32 and GFP_DMA are no ops without the corresponding zones: */
+	if (dev->coherent_dma_mask <= DMA_BIT_MASK(ARCH_ZONE_DMA_BITS))
+		gfp |= GFP_DMA;
+	if (dev->coherent_dma_mask <= DMA_BIT_MASK(32) && !(gfp & GFP_DMA))
+		gfp |= GFP_DMA32;
+
 	/* CMA can be used only in the context which permits sleeping */
 	if (gfpflags_allow_blocking(gfp))
 		page = dma_alloc_from_contiguous(dev, count, page_order, gfp);
-- 
2.14.2

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From - Thu Nov 08 21:40:58 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 21/34] dma-mapping: clear harmful GFP_* flags in common code
Date: Fri, 12 Jan 2018 09:42:19 +0100
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Cc: linux-mips@linux-mips.org, linux-ia64@vger.kernel.org,
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To: iommu@lists.linux-foundation.org
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Xref: news.gmane.org gmane.linux.kernel.arc:3369 gmane.linux.kernel.iommu:22176 gmane.linux.ports.mips.general:63317 gmane.linux.ports.ia64:28620 gmane.linux.ports.sh.devel:56321 gmane.linux.ports.sparc:27270 gmane.linux.kernel.cross-arch:41478 gmane.linux.ports.hexagon:1585 gmane.linux.kernel.metag:1662 gmane.linux.ports.arm.kernel:625675 gmane.linux.ports.parisc:28262 gmane.linux.kernel:2665110 gmane.linux.ports.alpha:4759 gmane.linux.ports.ppc64.devel:152044
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3369>

Lift the code from x86 so that we behave consistently.  In the future we
should probably warn if any of these is set.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
---
 arch/cris/arch-v32/drivers/pci/dma.c      | 3 ---
 arch/h8300/kernel/dma.c                   | 3 ---
 arch/m68k/kernel/dma.c                    | 2 --
 arch/mips/cavium-octeon/dma-octeon.c      | 3 ---
 arch/mips/loongson64/common/dma-swiotlb.c | 3 ---
 arch/mips/mm/dma-default.c                | 3 ---
 arch/mips/netlogic/common/nlm-dma.c       | 3 ---
 arch/mn10300/mm/dma-alloc.c               | 3 ---
 arch/nios2/mm/dma-mapping.c               | 3 ---
 arch/powerpc/kernel/dma.c                 | 3 ---
 arch/x86/kernel/pci-dma.c                 | 2 --
 include/linux/dma-mapping.h               | 7 +++++++
 12 files changed, 7 insertions(+), 31 deletions(-)

diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
index dbbd3816cc0b..8c3802244ef3 100644
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ b/arch/cris/arch-v32/drivers/pci/dma.c
@@ -22,9 +22,6 @@ static void *v32_dma_alloc(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
 	if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff))
 		gfp |= GFP_DMA;
 
diff --git a/arch/h8300/kernel/dma.c b/arch/h8300/kernel/dma.c
index 225dd0a188dc..d44ba5db4ac3 100644
--- a/arch/h8300/kernel/dma.c
+++ b/arch/h8300/kernel/dma.c
@@ -16,9 +16,6 @@ static void *dma_alloc(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
 	if (dev == NULL || (*dev->dma_mask < 0xffffffff))
 		gfp |= GFP_DMA;
 	ret = (void *)__get_free_pages(gfp, get_order(size));
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index 87ef73a93856..c01b9b8f97bf 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -76,8 +76,6 @@ static void *m68k_dma_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
 
 	if (dev == NULL || (*dev->dma_mask < 0xffffffff))
 		gfp |= GFP_DMA;
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index c64bd87f0b6e..5baf79fce643 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -161,9 +161,6 @@ static void *octeon_dma_alloc_coherent(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
-
 	if (IS_ENABLED(CONFIG_ZONE_DMA) && dev == NULL)
 		gfp |= __GFP_DMA;
 	else if (IS_ENABLED(CONFIG_ZONE_DMA) &&
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index ef07740cee61..15388c24a504 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -15,9 +15,6 @@ static void *loongson_dma_alloc_coherent(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
-
 	if ((IS_ENABLED(CONFIG_ISA) && dev == NULL) ||
 	    (IS_ENABLED(CONFIG_ZONE_DMA) &&
 	     dev->coherent_dma_mask < DMA_BIT_MASK(32)))
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index e3e94d05f0fd..237532e89919 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -93,9 +93,6 @@ static gfp_t massage_gfp_flags(const struct device *dev, gfp_t gfp)
 {
 	gfp_t dma_flag;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
-
 #ifdef CONFIG_ISA
 	if (dev == NULL)
 		dma_flag = __GFP_DMA;
diff --git a/arch/mips/netlogic/common/nlm-dma.c b/arch/mips/netlogic/common/nlm-dma.c
index 0ec9d9da6d51..49c975b6aa28 100644
--- a/arch/mips/netlogic/common/nlm-dma.c
+++ b/arch/mips/netlogic/common/nlm-dma.c
@@ -47,9 +47,6 @@ static char *nlm_swiotlb;
 static void *nlm_dma_alloc_coherent(struct device *dev, size_t size,
 	dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
-
 #ifdef CONFIG_ZONE_DMA32
 	if (dev->coherent_dma_mask <= DMA_BIT_MASK(32))
 		gfp |= __GFP_DMA32;
diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c
index 86108d2496b3..e3910d4db102 100644
--- a/arch/mn10300/mm/dma-alloc.c
+++ b/arch/mn10300/mm/dma-alloc.c
@@ -37,9 +37,6 @@ static void *mn10300_dma_alloc(struct device *dev, size_t size,
 		goto done;
 	}
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
 	if (dev == NULL || dev->coherent_dma_mask < 0xffffffff)
 		gfp |= GFP_DMA;
 
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index 7040c1adbb5e..4be815519dd4 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -63,9 +63,6 @@ static void *nios2_dma_alloc(struct device *dev, size_t size,
 {
 	void *ret;
 
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
 	/* optimized page clearing */
 	gfp |= __GFP_ZERO;
 
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 6d5d04ccf3b4..76079841d3d0 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -105,9 +105,6 @@ void *__dma_nommu_alloc_coherent(struct device *dev, size_t size,
 	};
 #endif /* CONFIG_FSL_SOC */
 
-	/* ignore region specifiers */
-	flag  &= ~(__GFP_HIGHMEM);
-
 	page = alloc_pages_node(node, flag, get_order(size));
 	if (page == NULL)
 		return NULL;
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 8439e6de6156..61a8f1cb3829 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -87,7 +87,6 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 
 	dma_mask = dma_alloc_coherent_mask(dev, flag);
 
-	flag &= ~__GFP_ZERO;
 again:
 	page = NULL;
 	/* CMA can be used only in the context which permits sleeping */
@@ -139,7 +138,6 @@ bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp)
 	if (!*dev)
 		*dev = &x86_dma_fallback_dev;
 
-	*gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
 	*gfp = dma_alloc_coherent_gfp_flags(*dev, *gfp);
 
 	if (!is_device_dma_capable(*dev))
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 9f28b2fa329e..88bcb1a8211d 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -518,6 +518,13 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
 	if (dma_alloc_from_dev_coherent(dev, size, dma_handle, &cpu_addr))
 		return cpu_addr;
 
+	/*
+	 * Let the implementation decide on the zone to allocate from, and
+	 * decide on the way of zeroing the memory given that the memory
+	 * returned should always be zeroed.
+	 */
+	flag &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM | __GFP_ZERO);
+
 	if (!arch_dma_alloc_attrs(&dev, &flag))
 		return NULL;
 	if (!ops->alloc)
-- 
2.14.2

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Subject: Re: [PATCH 19/33] dma-mapping: warn when there is no coherent_dma_mask
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/22177>

On Wed, Jan 10, 2018 at 09:00:13AM +0100, Christoph Hellwig wrote:
> These days all devices should have a DMA coherent mask, and most dma_ops
> implementations rely on that fact.  But just to be sure add an assert to
> ring the warning bell if that is not the case.
> 
> Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>

Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
> ---
>  include/linux/dma-mapping.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
> index d84951865be7..9f28b2fa329e 100644
> --- a/include/linux/dma-mapping.h
> +++ b/include/linux/dma-mapping.h
> @@ -513,6 +513,7 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
>  	void *cpu_addr;
>  
>  	BUG_ON(!ops);
> +	WARN_ON_ONCE(!dev->coherent_dma_mask);
>  
>  	if (dma_alloc_from_dev_coherent(dev, size, dma_handle, &cpu_addr))
>  		return cpu_addr;
> -- 
> 2.14.2
> 

From - Thu Nov 08 21:40:58 2018
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Newsgroups: gmane.linux.ports.alpha,gmane.linux.kernel.iommu,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.kernel
Subject: Re: [PATCH 21/33] dma-mapping: add an arch_dma_supported hook
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On Wed, Jan 10, 2018 at 09:00:15AM +0100, Christoph Hellwig wrote:
> To implement the x86 forbid_dac and iommu_sac_force we want an arch hook
> so that it can apply the global options across all dma_map_ops
> implementations.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
> ---
>  arch/x86/include/asm/dma-mapping.h |  3 +++
>  arch/x86/kernel/pci-dma.c          | 19 ++++++++++++-------
>  include/linux/dma-mapping.h        | 11 +++++++++++
>  3 files changed, 26 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
> index dfdc9357a349..6277c83c0eb1 100644
> --- a/arch/x86/include/asm/dma-mapping.h
> +++ b/arch/x86/include/asm/dma-mapping.h
> @@ -30,6 +30,9 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
>  	return dma_ops;
>  }
>  
> +int arch_dma_supported(struct device *dev, u64 mask);
> +#define arch_dma_supported arch_dma_supported
> +
>  bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
>  #define arch_dma_alloc_attrs arch_dma_alloc_attrs
>  
> diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
> index 61a8f1cb3829..df7ab02f959f 100644
> --- a/arch/x86/kernel/pci-dma.c
> +++ b/arch/x86/kernel/pci-dma.c
> @@ -215,7 +215,7 @@ static __init int iommu_setup(char *p)
>  }
>  early_param("iommu", iommu_setup);
>  
> -int x86_dma_supported(struct device *dev, u64 mask)
> +int arch_dma_supported(struct device *dev, u64 mask)
>  {
>  #ifdef CONFIG_PCI
>  	if (mask > 0xffffffff && forbid_dac > 0) {
> @@ -224,12 +224,6 @@ int x86_dma_supported(struct device *dev, u64 mask)
>  	}
>  #endif
>  
> -	/* Copied from i386. Doesn't make much sense, because it will
> -	   only work for pci_alloc_coherent.
> -	   The caller just has to use GFP_DMA in this case. */
> -	if (mask < DMA_BIT_MASK(24))
> -		return 0;
> -
>  	/* Tell the device to use SAC when IOMMU force is on.  This
>  	   allows the driver to use cheaper accesses in some cases.
>  
> @@ -249,6 +243,17 @@ int x86_dma_supported(struct device *dev, u64 mask)
>  
>  	return 1;
>  }
> +EXPORT_SYMBOL(arch_dma_supported);
> +
> +int x86_dma_supported(struct device *dev, u64 mask)
> +{
> +	/* Copied from i386. Doesn't make much sense, because it will
> +	   only work for pci_alloc_coherent.
> +	   The caller just has to use GFP_DMA in this case. */
> +	if (mask < DMA_BIT_MASK(24))
> +		return 0;
> +	return 1;
> +}
>  
>  static int __init pci_iommu_init(void)
>  {
> diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
> index 88bcb1a8211d..d67742dad904 100644
> --- a/include/linux/dma-mapping.h
> +++ b/include/linux/dma-mapping.h
> @@ -576,6 +576,14 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
>  	return 0;
>  }
>  
> +/*
> + * This is a hack for the legacy x86 forbid_dac and iommu_sac_force. Please
> + * don't use this is new code.
> + */
> +#ifndef arch_dma_supported
> +#define arch_dma_supported(dev, mask)	(1)
> +#endif
> +
>  static inline void dma_check_mask(struct device *dev, u64 mask)
>  {
>  	if (sme_active() && (mask < (((u64)sme_get_me_mask() << 1) - 1)))
> @@ -588,6 +596,9 @@ static inline int dma_supported(struct device *dev, u64 mask)
>  
>  	if (!ops)
>  		return 0;
> +	if (!arch_dma_supported(dev, mask))
> +		return 0;
> +
>  	if (!ops->dma_supported)
>  		return 1;
>  	return ops->dma_supported(dev, mask);
> -- 
> 2.14.2
> 
--
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Subject: [PATCH] parisc: Use cr16 interval timers unconditionally on qemu
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When running on qemu we know that the (emulated) cr16 cpu-internal
clocks are syncronized. So let's use them unconditionally on qemu.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 0e6ab6e4a4e9..2dbe5580a1a4 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -316,6 +316,8 @@ extern int _parisc_requires_coherency;
 #define parisc_requires_coherency()	(0)
 #endif
 
+extern int running_on_qemu;
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* __ASM_PARISC_PROCESSOR_H */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 4b8fd6dc22da..68e88e5c0898 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -248,7 +248,7 @@ static int __init init_cr16_clocksource(void)
 	 * different sockets, so mark them unstable and lower rating on
 	 * multi-socket SMP systems.
 	 */
-	if (num_online_cpus() > 1) {
+	if (num_online_cpus() > 1 && !running_on_qemu) {
 		int cpu;
 		unsigned long cpu0_loc;
 		cpu0_loc = per_cpu(cpu_data, 0).cpu_loc;
--
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The architecture specification says (for 64-bit systems): PDC is a per
processor resource, and operating system software must be prepared to
manage separate pointers to PDCE_PROC for each processor.  The address
of PDCE_PROC for the monarch processor is stored in the Page Zero
location MEM_PDC. The address of PDCE_PROC for each non-monarch
processor is passed in gr26 when PDCE_RESET invokes OS_RENDEZ.

Currently we still use one PDC for all CPUs, but in case we face a
machine which is following the specification let's warn about it.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index bbbe360b458f..fbb4e43fda05 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -138,6 +138,16 @@ $pgt_fill_loop:
 	std		%dp,0x18(%r10)
 #endif
 
+#ifdef CONFIG_64BIT
+	/* Get PDCE_PROC for monarch CPU. */
+#define MEM_PDC_LO 0x388
+#define MEM_PDC_HI 0x35C
+	ldw             MEM_PDC_LO(%r0),%r3
+	ldw             MEM_PDC_HI(%r0),%r10
+	depd            %r10, 31, 32, %r3        /* move to upper word */
+#endif
+
+
 #ifdef CONFIG_SMP
 	/* Set the smp rendezvous address into page zero.
 	** It would be safer to do this in init_smp_config() but
@@ -196,12 +206,6 @@ common_stext:
         ** Someday, palo might not do this for the Monarch either.
         */
 2:
-#define MEM_PDC_LO 0x388
-#define MEM_PDC_HI 0x35C
-	ldw             MEM_PDC_LO(%r0),%r3
-	ldw             MEM_PDC_HI(%r0),%r6
-	depd            %r6, 31, 32, %r3        /* move to upper word */
-
 	mfctl		%cr30,%r6		/* PCX-W2 firmware bug */
 
 	ldo             PDC_PSW(%r0),%arg0              /* 21 */
@@ -268,6 +272,8 @@ $install_iva:
 aligned_rfi:
 	pcxt_ssm_bug
 
+	copy		%r3, %arg0	/* PDCE_PROC for smp_callin() */
+
 	rsm		PSW_SM_QUIET,%r0	/* off troublesome PSW bits */
 	/* Don't need NOPs, have 8 compliant insn before rfi */
 
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 30c28ab14540..4065b5e48c9d 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -292,10 +292,15 @@ smp_cpu_init(int cpunum)
  * Slaves start using C here. Indirectly called from smp_slave_stext.
  * Do what start_kernel() and main() do for boot strap processor (aka monarch)
  */
-void __init smp_callin(void)
+void __init smp_callin(unsigned long pdce_proc)
 {
 	int slave_id = cpu_now_booting;
 
+#ifdef CONFIG_64BIT
+	WARN_ON(((unsigned long)(PAGE0->mem_pdc_hi) << 32
+			| PAGE0->mem_pdc) != pdce_proc);
+#endif
+
 	smp_cpu_init(slave_id);
 	preempt_disable();
 
--
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Subject: Re: [GIT PULL] parisc architecture fixes for 4.15-rc7
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Subject: [PATCH] parisc: Hide virtual kernel memory layout

For security reasons do not expose the virtual kernel memory layout to
userspace.

Signed-off-by: Helge Deller <deller@gmx.de>
Suggested-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org # 4.15

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 48f41399fc0b..cab32ee824d2 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -629,7 +629,12 @@ void __init mem_init(void)
 #endif
 
 	mem_init_print_info(NULL);
-#ifdef CONFIG_DEBUG_KERNEL /* double-sanity-check paranoia */
+
+#if 0
+	/*
+	 * Do not expose the virtual kernel memory layout to userspace.
+	 * But keep code for debugging purposes.
+	 */
 	printk("virtual kernel memory layout:\n"
 	       "    vmalloc : 0x%px - 0x%px   (%4ld MB)\n"
 	       "    memory  : 0x%px - 0x%px   (%4ld MB)\n"
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Subject: Re: [GIT PULL] parisc architecture fixes for 4.15-rc7
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On Fri, Jan 12, 2018 at 1:57 PM, Helge Deller <deller@gmx.de> wrote:
>
>
> Subject: [PATCH] parisc: Hide virtual kernel memory layout
>
> For security reasons do not expose the virtual kernel memory layout to
> userspace.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
> Suggested-by: Kees Cook <keescook@chromium.org>
> Cc: stable@vger.kernel.org # 4.15

Thanks!

Reviewed-by: Kees Cook <keescook@chromium.org>

-Kees

>
> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> index 48f41399fc0b..cab32ee824d2 100644
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -629,7 +629,12 @@ void __init mem_init(void)
>  #endif
>
>         mem_init_print_info(NULL);
> -#ifdef CONFIG_DEBUG_KERNEL /* double-sanity-check paranoia */
> +
> +#if 0
> +       /*
> +        * Do not expose the virtual kernel memory layout to userspace.
> +        * But keep code for debugging purposes.
> +        */
>         printk("virtual kernel memory layout:\n"
>                "    vmalloc : 0x%px - 0x%px   (%4ld MB)\n"
>                "    memory  : 0x%px - 0x%px   (%4ld MB)\n"



-- 
Kees Cook
Pixel Security
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From - Thu Nov 08 21:40:58 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 04/11] signal/parisc: Document a conflict with SI_USER
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* Eric W. Biederman <ebiederm@xmission.com>:
> Setting si_code to 0 results in a userspace seeing an si_code of 0.
> This is the same si_code as SI_USER.  Posix and common sense requires
> that SI_USER not be a signal specific si_code.  As such this use of 0
> for the si_code is a pretty horribly broken ABI.
> 
> Further use of si_code == 0 guaranteed that copy_siginfo_to_user saw a
> value of __SI_KILL and now sees a value of SIL_KILL with the result
> that uid and pid fields are copied and which might copying the si_addr
> field by accident but certainly not by design.  Making this a very
> flakey implementation.
> 
> Utilizing FPE_FIXME siginfo_layout will now return SIL_FAULT and the
> appropriate fields will reliably be copied.
> 
> This bug is 13 years old and parsic machines are no longer being built
> so I don't know if it possible or worth fixing it.  But it is at least
> worth documenting this so other architectures don't make the same
> mistake.


I think we should fix it, even if we now break the ABI.

It's about a "conditional trap" which needs to be handled by userspace.
I doubt there is any Linux code out which is utilizing this
parisc-specific trap.

I'd suggest to add a new FPE trap si_code (e.g. FPE_CONDTRAP).
While at it, maybe we should include the already existing FPE_MDAOVF
from the frv architecture, so that arch/frv/include/uapi/asm/siginfo.h
can go completely.

Suggested patch is below.

I'm willing to test the patch below on the parisc architecture for a few
weeks. And it will break arch/x86/kernel/signal_compat.c which needs
looking at then too.

Thoughts?

Helge



[PATCH] parisc: Add FPE_CONDTRAP for conditional trap handling

Posix and common sense requires that SI_USER not be a signal specific
si_code.  Thus add a new FPE_CONDTRAP si_code for conditional traps.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 8453724b8009..13702f0f5ba1 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -627,9 +627,9 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 		   on condition  */
 		if(user_mode(regs)){
 			si.si_signo = SIGFPE;
-			/* Set to zero, and let the userspace app figure it out from
-			   the insn pointed to by si_addr */
-			si.si_code = 0;
+			/* Let userspace app figure out from the insn pointed
+			 * to by si_addr */
+			si.si_code = FPE_CONDTRAP;
 			si.si_addr = (void __user *) regs->iaoq[0];
 			force_sig_info(SIGFPE, &si, current);
 			return;
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index e447283b8f52..2b759fe42142 100644
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -193,7 +193,9 @@ typedef struct siginfo {
 #define FPE_FLTRES	6	/* floating point inexact result */
 #define FPE_FLTINV	7	/* floating point invalid operation */
 #define FPE_FLTSUB	8	/* subscript out of range */
-#define NSIGFPE		8
+#define FPE_MDAOVF	9       /* media overflow */
+#define FPE_CONDTRAP	10      /* trap on condition */
+#define NSIGFPE		10
 
 /*
  * SIGSEGV si_codes


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Helge Deller <deller@gmx.de> writes:

> * Eric W. Biederman <ebiederm@xmission.com>:
>> Setting si_code to 0 results in a userspace seeing an si_code of 0.
>> This is the same si_code as SI_USER.  Posix and common sense requires
>> that SI_USER not be a signal specific si_code.  As such this use of 0
>> for the si_code is a pretty horribly broken ABI.
>> 
>> Further use of si_code == 0 guaranteed that copy_siginfo_to_user saw a
>> value of __SI_KILL and now sees a value of SIL_KILL with the result
>> that uid and pid fields are copied and which might copying the si_addr
>> field by accident but certainly not by design.  Making this a very
>> flakey implementation.
>> 
>> Utilizing FPE_FIXME siginfo_layout will now return SIL_FAULT and the
>> appropriate fields will reliably be copied.
>> 
>> This bug is 13 years old and parsic machines are no longer being built
>> so I don't know if it possible or worth fixing it.  But it is at least
>> worth documenting this so other architectures don't make the same
>> mistake.
>
>
> I think we should fix it, even if we now break the ABI.
>
> It's about a "conditional trap" which needs to be handled by userspace.
> I doubt there is any Linux code out which is utilizing this
> parisc-specific trap.
>
> I'd suggest to add a new FPE trap si_code (e.g. FPE_CONDTRAP).
> While at it, maybe we should include the already existing FPE_MDAOVF
> from the frv architecture, so that arch/frv/include/uapi/asm/siginfo.h
> can go completely.
>
> Suggested patch is below.
>
> I'm willing to test the patch below on the parisc architecture for a few
> weeks. And it will break arch/x86/kernel/signal_compat.c which needs
> looking at then too.
>
> Thoughts?

I like it.

We have the option of bringing either the ia64 or the frv si_codes
into the generic fold.  Is there any reason you choose frv?
Last I looked ia64 tended in many aspects to be well thought out,
and thus worth a careful look.

Given that a couple of weeks likely puts on the other side of the merge
window I would like to start with my patch so I can close the potential
copying of unitialized memory to userspace.  Then we can build yours on
top.

Although I am more than happy to add new si_codes now.

What I am in the final stages of testing and reviewing internally is the
change to merge all of struct siginfo, struct compat_siginfo,
copy_siginfo_from_user32 and copy_siginfo_to_user32 together.

I need another couple hours and I will be ready to post that.

For long term maintenance the more we can merge together the better,
as clearly some of these bugs have persisted far too long.  And getting
collapsing the arch specific si_codes into just a set of si_codes
looks like one more good step in that direction.

Eric


> Helge
>
>
>
> [PATCH] parisc: Add FPE_CONDTRAP for conditional trap handling
>
> Posix and common sense requires that SI_USER not be a signal specific
> si_code.  Thus add a new FPE_CONDTRAP si_code for conditional traps.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
> index 8453724b8009..13702f0f5ba1 100644
> --- a/arch/parisc/kernel/traps.c
> +++ b/arch/parisc/kernel/traps.c
> @@ -627,9 +627,9 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
>  		   on condition  */
>  		if(user_mode(regs)){
>  			si.si_signo = SIGFPE;
> -			/* Set to zero, and let the userspace app figure it out from
> -			   the insn pointed to by si_addr */
> -			si.si_code = 0;
> +			/* Let userspace app figure out from the insn pointed
> +			 * to by si_addr */
> +			si.si_code = FPE_CONDTRAP;
>  			si.si_addr = (void __user *) regs->iaoq[0];
>  			force_sig_info(SIGFPE, &si, current);
>  			return;
> diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
> index e447283b8f52..2b759fe42142 100644
> --- a/include/uapi/asm-generic/siginfo.h
> +++ b/include/uapi/asm-generic/siginfo.h
> @@ -193,7 +193,9 @@ typedef struct siginfo {
>  #define FPE_FLTRES	6	/* floating point inexact result */
>  #define FPE_FLTINV	7	/* floating point invalid operation */
>  #define FPE_FLTSUB	8	/* subscript out of range */
> -#define NSIGFPE		8
> +#define FPE_MDAOVF	9       /* media overflow */
> +#define FPE_CONDTRAP	10      /* trap on condition */
> +#define NSIGFPE		10
>  
>  /*
>   * SIGSEGV si_codes


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From: ebiederm@xmission.com (Eric W. Biederman)
Newsgroups: gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 04/11] signal/parisc: Document a conflict with SI_USER with SIGFPE
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        John David Anglin <dave.anglin@bell.net>,
        linux-kernel@vger.kernel.org, Al Viro <viro@zeniv.linux.org.uk>,
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ebiederm@xmission.com (Eric W. Biederman) writes:

> Helge Deller <deller@gmx.de> writes:
>
>> * Eric W. Biederman <ebiederm@xmission.com>:
>>> Setting si_code to 0 results in a userspace seeing an si_code of 0.
>>> This is the same si_code as SI_USER.  Posix and common sense requires
>>> that SI_USER not be a signal specific si_code.  As such this use of 0
>>> for the si_code is a pretty horribly broken ABI.
>>> 
>>> Further use of si_code == 0 guaranteed that copy_siginfo_to_user saw a
>>> value of __SI_KILL and now sees a value of SIL_KILL with the result
>>> that uid and pid fields are copied and which might copying the si_addr
>>> field by accident but certainly not by design.  Making this a very
>>> flakey implementation.
>>> 
>>> Utilizing FPE_FIXME siginfo_layout will now return SIL_FAULT and the
>>> appropriate fields will reliably be copied.
>>> 
>>> This bug is 13 years old and parsic machines are no longer being built
>>> so I don't know if it possible or worth fixing it.  But it is at least
>>> worth documenting this so other architectures don't make the same
>>> mistake.
>>
>>
>> I think we should fix it, even if we now break the ABI.
>>
>> It's about a "conditional trap" which needs to be handled by userspace.
>> I doubt there is any Linux code out which is utilizing this
>> parisc-specific trap.
>>
>> I'd suggest to add a new FPE trap si_code (e.g. FPE_CONDTRAP).
>> While at it, maybe we should include the already existing FPE_MDAOVF
>> from the frv architecture, so that arch/frv/include/uapi/asm/siginfo.h
>> can go completely.
>>
>> Suggested patch is below.
>>
>> I'm willing to test the patch below on the parisc architecture for a few
>> weeks. And it will break arch/x86/kernel/signal_compat.c which needs
>> looking at then too.
>>
>> Thoughts?
>
> I like it.

Your comments about the si_codes caused me to look into how they differ
across the architectures and realize they also all need to be merged
into uapi/asm-generic/siginfo.h for sanity sake.   In doing so I found
a couple of minor issues with my other unifications.

Rebased onto my tree your patch looks like the below.  If it does not
cause any regressions it looks like a perfect fix.  The noticable change
is that the first FPE si_code available across all architectures is 14
so I have used 14 instead of 10 for FPE_CONDTRAP.

Eric

From: Helge Deller <deller@gmx.de>
Date: Sat, 13 Jan 2018 19:32:43 -0600
Subject: [PATCH] signal/parisc: Add FPE_CONDTRAP for conditional trap handling

Posix and common sense requires that SI_USER not be a signal specific
si_code.  Thus add a new FPE_CONDTRAP si_code for conditional traps.

-- EWB rebased onto my tree.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
 arch/parisc/include/uapi/asm/siginfo.h | 7 -------
 arch/parisc/kernel/traps.c             | 7 ++++---
 include/uapi/asm-generic/siginfo.h     | 3 ++-
 3 files changed, 6 insertions(+), 11 deletions(-)

diff --git a/arch/parisc/include/uapi/asm/siginfo.h b/arch/parisc/include/uapi/asm/siginfo.h
index be40331f757d..4a1062e05aaf 100644
--- a/arch/parisc/include/uapi/asm/siginfo.h
+++ b/arch/parisc/include/uapi/asm/siginfo.h
@@ -8,11 +8,4 @@
 
 #include <asm-generic/siginfo.h>
 
-/*
- * SIGFPE si_codes
- */
-#ifdef __KERNEL__
-#define FPE_FIXME	0	/* Broken dup of SI_USER */
-#endif /* __KERNEL__ */
-
 #endif
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index c919e6c0a687..68e671a11987 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -627,9 +627,10 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 		   on condition  */
 		if(user_mode(regs)){
 			si.si_signo = SIGFPE;
-			/* Set to zero, and let the userspace app figure it out from
-			   the insn pointed to by si_addr */
-			si.si_code = FPE_FIXME;
+			/* Let userspace app figure it out from the insn pointed
+			 * to by si_addr.
+			 */
+			si.si_code = FPE_CONDTRAP;
 			si.si_addr = (void __user *) regs->iaoq[0];
 			force_sig_info(SIGFPE, &si, current);
 			return;
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index 254afc31e3be..ab4fad1a0cf0 100644
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -229,7 +229,8 @@ typedef struct siginfo {
 # define __FPE_INVASC	12	/* invalid ASCII digit */
 # define __FPE_INVDEC	13	/* invalid decimal digit */
 #endif
-#define NSIGFPE		13
+#define FPE_CONDTRAP	14	/* trap on condition */
+#define NSIGFPE		14
 
 /*
  * SIGSEGV si_codes
-- 
2.14.1


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-- 
 Hallo, Sie haben eine Spende von 4.800.000,00 Euro, ich habe die America Lottery in Amerika im Wert von 40 Millionen Dollar gewonnen und ich gebe einen Teil davon an fünf glückliche Menschen und Wohltätigkeits-Häuser in Erinnerung an meine verstorbene Frau, die an Krebs gestorben ist. Kontaktieren Sie mich für weitere Details:(tomcrist2009@gmail.com)
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/27273>

The series is a preparation series for individual architectures
to use 64 bit time_t syscalls in compat and 32 bit emulation modes.

This is a follow up to the series Arnd Bergmann posted:
https://sourceware.org/ml/libc-alpha/2015-05/msg00070.html [1]

Big picture is as per the lwn article:
https://lwn.net/Articles/643234/ [2]

The series is directed at converting posix clock syscalls:
clock_gettime, clock_settime, clock_getres and clock_nanosleep
to use a new data structure __kernel_timespec at syscall boundaries.
__kernel_timespec maintains 64 bit time_t across all execution modes.

vdso will be handled as part of each architecture when they enable
support for 64 bit time_t.

The compat syscalls are repurposed to provide backward compatibility
by using them as native syscalls as well for 32 bit architectures.
They will continue to use timespec at syscall boundaries.

CONFIG_64_BIT_TIME controls whether the syscalls use __kernel_timespec
or timespec at syscall boundaries.

The series does the following:
1. Enable compat syscalls on 32 bit architectures.
2. Add a new __kernel_timespec type to be used as the data structure
   for all the new syscalls.
3. Add new config CONFIG_64BIT_TIME(intead of the CONFIG_COMPAT_TIME in
   [1] and [2] to switch to new definition of __kernel_timespec. It is
   the same as struct timespec otherwise.
4. Add new CONFIG_32BIT_TIME to conditionally compile compat syscalls.

* Changes since v2:
 * Dropped the ARCH_HAS_64BIT_TIME config.
 * Fixed zeroing out of higher order bits of tv_nsec for real.
 * Addressed minor review comments from v1.
* Changes since v1:
 * Introduce CONFIG_32BIT_TIME
 * Fixed zeroing out of higher order bits of tv_nsec
 * Included Arnd's changes to fix up use of compat headers

I decided against using LEGACY_TIME_SYSCALLS to conditionally compile
legacy time syscalls such as sys_nanosleep because this will need to
enclose compat_sys_nanosleep as well. So, defining it as 

config LEGACY_TIME_SYSCALLS
     def_bool 64BIT || !64BIT_TIME

will not include compat_sys_nanosleep. We will instead need a new config to
exclusively mark legacy syscalls.

Deepa Dinamani (10):
  compat: Make compat helpers independent of CONFIG_COMPAT
  include: Move compat_timespec/ timeval to compat_time.h
  compat: enable compat_get/put_timespec64 always
  arch: introduce CONFIG_64BIT_TIME
  arch: Introduce CONFIG_COMPAT_32BIT_TIME
  posix-clocks: Make compat syscalls depend on CONFIG_COMPAT_32BIT_TIME
  include: Add new y2038 safe __kernel_timespec
  fix get_timespec64() for y2038 safe compat interfaces
  change time types to new y2038 safe __kernel_* types
  nanosleep: change time types to safe __kernel_* types

 arch/Kconfig                           | 15 +++++++++
 arch/arm64/include/asm/compat.h        | 11 -------
 arch/arm64/include/asm/stat.h          |  1 +
 arch/arm64/kernel/hw_breakpoint.c      |  1 -
 arch/arm64/kernel/perf_regs.c          |  2 +-
 arch/arm64/kernel/process.c            |  1 -
 arch/mips/include/asm/compat.h         | 11 -------
 arch/mips/kernel/signal32.c            |  2 +-
 arch/parisc/include/asm/compat.h       | 11 -------
 arch/powerpc/include/asm/compat.h      | 11 -------
 arch/powerpc/kernel/asm-offsets.c      |  2 +-
 arch/powerpc/oprofile/backtrace.c      |  2 +-
 arch/s390/hypfs/hypfs_sprp.c           |  1 -
 arch/s390/include/asm/compat.h         | 11 -------
 arch/s390/include/asm/elf.h            |  3 +-
 arch/s390/kvm/priv.c                   |  1 -
 arch/s390/pci/pci_clp.c                |  1 -
 arch/sparc/include/asm/compat.h        | 11 -------
 arch/tile/include/asm/compat.h         | 11 -------
 arch/x86/events/core.c                 |  2 +-
 arch/x86/include/asm/compat.h          | 11 -------
 arch/x86/include/asm/ftrace.h          |  2 +-
 arch/x86/include/asm/sys_ia32.h        |  2 +-
 arch/x86/kernel/sys_x86_64.c           |  2 +-
 drivers/s390/block/dasd_ioctl.c        |  1 -
 drivers/s390/char/fs3270.c             |  1 -
 drivers/s390/char/sclp_ctl.c           |  1 -
 drivers/s390/char/vmcp.c               |  1 -
 drivers/s390/cio/chsc_sch.c            |  1 -
 drivers/s390/net/qeth_core_main.c      |  2 +-
 include/linux/compat.h                 | 11 ++++---
 include/linux/compat_time.h            | 23 ++++++++++++++
 include/linux/restart_block.h          |  7 ++--
 include/linux/syscalls.h               | 12 +++----
 include/linux/time.h                   |  4 +--
 include/linux/time64.h                 | 10 +++++-
 include/uapi/asm-generic/posix_types.h |  1 +
 include/uapi/linux/time.h              |  7 ++++
 kernel/compat.c                        | 52 +++++-------------------------
 kernel/time/hrtimer.c                  | 10 ++++--
 kernel/time/posix-stubs.c              | 12 ++++---
 kernel/time/posix-timers.c             | 24 ++++++++++----
 kernel/time/time.c                     | 58 +++++++++++++++++++++++++++++++---
 43 files changed, 176 insertions(+), 190 deletions(-)
 create mode 100644 include/linux/compat_time.h


base-commit: 8418f88764046d0e8ca6a3c04a69a0e57189aa1e
-- 
2.14.1

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From - Thu Nov 08 21:40:59 2018
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Newsgroups: gmane.linux.ports.sparc,gmane.linux.kernel,gmane.linux.kernel.year-2038,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.oprofile
Subject: [PATCH v3 02/10] include: Move compat_timespec/ timeval to compat_time.h
Date: Mon, 15 Jan 2018 18:18:10 -0800
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To: tglx@linutronix.de, john.stultz@linaro.org
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Xref: news.gmane.org gmane.linux.ports.sparc:27274 gmane.linux.kernel:2667564 gmane.linux.kernel.year-2038:2476 gmane.linux.ports.mips.general:63371 gmane.linux.ports.parisc:28274 gmane.linux.ports.ppc64.devel:152198 gmane.linux.oprofile:13128
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.sparc/27274>

All the current architecture specific defines for these
are the same. Refactor these common defines to a common
header file.

The new common linux/compat_time.h is also useful as it
will eventually be used to hold all the defines that
are needed for compat time types that support non y2038
safe types. New architectures need not have to define these
new types as they will only use new y2038 safe syscalls.
This file can be deleted after y2038 when we stop supporting
non y2038 safe syscalls.

The patch also requires an operation similar to:

git grep "asm/compat\.h" | cut -d ":" -f 1 |  xargs -n 1 sed -i -e "s%asm/compat.h%linux/compat.h%g"

Cc: acme@kernel.org
Cc: benh@kernel.crashing.org
Cc: borntraeger@de.ibm.com
Cc: catalin.marinas@arm.com
Cc: cmetcalf@mellanox.com
Cc: cohuck@redhat.com
Cc: davem@davemloft.net
Cc: deller@gmx.de
Cc: devel@driverdev.osuosl.org
Cc: gerald.schaefer@de.ibm.com
Cc: gregkh@linuxfoundation.org
Cc: heiko.carstens@de.ibm.com
Cc: hoeppner@linux.vnet.ibm.com
Cc: hpa@zytor.com
Cc: jejb@parisc-linux.org
Cc: jwi@linux.vnet.ibm.com
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: mark.rutland@arm.com
Cc: mingo@redhat.com
Cc: mpe@ellerman.id.au
Cc: oberpar@linux.vnet.ibm.com
Cc: oprofile-list@lists.sf.net
Cc: paulus@samba.org
Cc: peterz@infradead.org
Cc: ralf@linux-mips.org
Cc: rostedt@goodmis.org
Cc: rric@kernel.org
Cc: schwidefsky@de.ibm.com
Cc: sebott@linux.vnet.ibm.com
Cc: sparclinux@vger.kernel.org
Cc: sth@linux.vnet.ibm.com
Cc: ubraun@linux.vnet.ibm.com
Cc: will.deacon@arm.com
Cc: x86@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 arch/arm64/include/asm/compat.h   | 11 -----------
 arch/arm64/include/asm/stat.h     |  1 +
 arch/arm64/kernel/hw_breakpoint.c |  1 -
 arch/arm64/kernel/perf_regs.c     |  2 +-
 arch/arm64/kernel/process.c       |  1 -
 arch/mips/include/asm/compat.h    | 11 -----------
 arch/mips/kernel/signal32.c       |  2 +-
 arch/parisc/include/asm/compat.h  | 11 -----------
 arch/powerpc/include/asm/compat.h | 11 -----------
 arch/powerpc/kernel/asm-offsets.c |  2 +-
 arch/powerpc/oprofile/backtrace.c |  2 +-
 arch/s390/hypfs/hypfs_sprp.c      |  1 -
 arch/s390/include/asm/compat.h    | 11 -----------
 arch/s390/include/asm/elf.h       |  3 +--
 arch/s390/kvm/priv.c              |  1 -
 arch/s390/pci/pci_clp.c           |  1 -
 arch/sparc/include/asm/compat.h   | 11 -----------
 arch/tile/include/asm/compat.h    | 11 -----------
 arch/x86/events/core.c            |  2 +-
 arch/x86/include/asm/compat.h     | 11 -----------
 arch/x86/include/asm/ftrace.h     |  2 +-
 arch/x86/include/asm/sys_ia32.h   |  2 +-
 arch/x86/kernel/sys_x86_64.c      |  2 +-
 drivers/s390/block/dasd_ioctl.c   |  1 -
 drivers/s390/char/fs3270.c        |  1 -
 drivers/s390/char/sclp_ctl.c      |  1 -
 drivers/s390/char/vmcp.c          |  1 -
 drivers/s390/cio/chsc_sch.c       |  1 -
 drivers/s390/net/qeth_core_main.c |  2 +-
 include/linux/compat.h            |  1 +
 include/linux/compat_time.h       | 19 +++++++++++++++++++
 31 files changed, 31 insertions(+), 109 deletions(-)
 create mode 100644 include/linux/compat_time.h

diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index a3c7f271ad4c..977b5064afc1 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -34,7 +34,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -66,16 +65,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 #ifdef __AARCH64EB__
 	short		st_dev;
diff --git a/arch/arm64/include/asm/stat.h b/arch/arm64/include/asm/stat.h
index 15e35598ac40..eab738019707 100644
--- a/arch/arm64/include/asm/stat.h
+++ b/arch/arm64/include/asm/stat.h
@@ -20,6 +20,7 @@
 
 #ifdef CONFIG_COMPAT
 
+#include <linux/compat_time.h>
 #include <asm/compat.h>
 
 /*
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index 74bb56f656ef..413dbe530da8 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -30,7 +30,6 @@
 #include <linux/smp.h>
 #include <linux/uaccess.h>
 
-#include <asm/compat.h>
 #include <asm/current.h>
 #include <asm/debug-monitors.h>
 #include <asm/hw_breakpoint.h>
diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c
index 1d091d048d04..929fc369d0be 100644
--- a/arch/arm64/kernel/perf_regs.c
+++ b/arch/arm64/kernel/perf_regs.c
@@ -5,7 +5,7 @@
 #include <linux/bug.h>
 #include <linux/sched/task_stack.h>
 
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/perf_regs.h>
 #include <asm/ptrace.h>
 
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index ad8aeb098b31..a1cca69fc14f 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -51,7 +51,6 @@
 #include <linux/thread_info.h>
 
 #include <asm/alternative.h>
-#include <asm/compat.h>
 #include <asm/cacheflush.h>
 #include <asm/exec.h>
 #include <asm/fpsimd.h>
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 49691331ada4..ccbf14e33282 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -14,7 +14,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_suseconds_t;
 
@@ -46,16 +45,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	s32		st_pad1[3];
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index cf5c7c05e5a3..a6b04c70a8cb 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -14,7 +14,7 @@
 #include <linux/signal.h>
 #include <linux/syscalls.h>
 
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/compat-signal.h>
 #include <linux/uaccess.h>
 #include <asm/unistd.h>
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index acf8aa07cbe0..90f844b16beb 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -13,7 +13,6 @@
 
 typedef u32	compat_size_t;
 typedef s32	compat_ssize_t;
-typedef s32	compat_time_t;
 typedef s32	compat_clock_t;
 typedef s32	compat_pid_t;
 typedef u32	__compat_uid_t;
@@ -40,16 +39,6 @@ typedef u32	compat_ulong_t;
 typedef u64	compat_u64;
 typedef u32	compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t		tv_sec;
-	s32			tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t		tv_sec;
-	s32			tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t		st_dev;	/* dev_t is 32 bits on parisc */
 	compat_ino_t		st_ino;	/* 32 bits */
diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
index 8a2aecfe9b02..517dbcfc2240 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -17,7 +17,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u32		__compat_uid_t;
@@ -45,16 +44,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	compat_ino_t	st_ino;
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index a6c72f720e8a..18a32e3c3718 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -42,7 +42,7 @@
 #include <asm/paca.h>
 #include <asm/lppaca.h>
 #include <asm/cache.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/mmu.h>
 #include <asm/hvcall.h>
 #include <asm/xics.h>
diff --git a/arch/powerpc/oprofile/backtrace.c b/arch/powerpc/oprofile/backtrace.c
index ecc66d5f02c9..11ff763c03ad 100644
--- a/arch/powerpc/oprofile/backtrace.c
+++ b/arch/powerpc/oprofile/backtrace.c
@@ -11,7 +11,7 @@
 #include <linux/sched.h>
 #include <asm/processor.h>
 #include <linux/uaccess.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/oprofile_impl.h>
 
 #define STACK_SP(STACK)		*(STACK)
diff --git a/arch/s390/hypfs/hypfs_sprp.c b/arch/s390/hypfs/hypfs_sprp.c
index ae0ed8dd5f1b..5d85a039391c 100644
--- a/arch/s390/hypfs/hypfs_sprp.c
+++ b/arch/s390/hypfs/hypfs_sprp.c
@@ -13,7 +13,6 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/uaccess.h>
-#include <asm/compat.h>
 #include <asm/diag.h>
 #include <asm/sclp.h>
 #include "hypfs.h"
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 5e6a63641a5f..7e587eb9fb58 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -53,7 +53,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -97,16 +96,6 @@ typedef struct {
 	u32 gprs_high[NUM_GPRS];
 } s390_compat_regs_high;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	u16		__pad1;
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 1a61b1b997f2..3e15c77c7c9a 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -126,7 +126,7 @@
  */
 
 #include <asm/ptrace.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/syscall.h>
 #include <asm/user.h>
 
@@ -136,7 +136,6 @@ typedef s390_regs elf_gregset_t;
 typedef s390_fp_regs compat_elf_fpregset_t;
 typedef s390_compat_regs compat_elf_gregset_t;
 
-#include <linux/compat.h>
 #include <linux/sched/mm.h>	/* for task_struct */
 #include <asm/mmu_context.h>
 
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 0714bfa56da0..5db2e40479aa 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -26,7 +26,6 @@
 #include <asm/gmap.h>
 #include <asm/io.h>
 #include <asm/ptrace.h>
-#include <asm/compat.h>
 #include <asm/sclp.h>
 #include "gaccess.h"
 #include "kvm-s390.h"
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 93cd0f1ca12b..19b2d2a9b43d 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -19,7 +19,6 @@
 #include <linux/uaccess.h>
 #include <asm/pci_debug.h>
 #include <asm/pci_clp.h>
-#include <asm/compat.h>
 #include <asm/clp.h>
 #include <uapi/asm/clp.h>
 
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index fa38c78de0f0..5b49b6a66cdb 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -11,7 +11,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -39,16 +38,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	compat_ino_t	st_ino;
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index 62a7b83025dd..21ab5b80f5c7 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -29,7 +29,6 @@ typedef u32		compat_ulong_t;
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
 typedef s32		compat_off_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef u32		compat_ino_t;
 typedef u32		compat_caddr_t;
@@ -59,16 +58,6 @@ typedef unsigned long compat_elf_greg_t;
 #define COMPAT_ELF_NGREG (sizeof(struct pt_regs) / sizeof(compat_elf_greg_t))
 typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 #define compat_stat stat
 #define compat_statfs statfs
 
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 140d33288e78..6b8961912781 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2391,7 +2391,7 @@ static unsigned long get_segment_base(unsigned int segment)
 
 #ifdef CONFIG_IA32_EMULATION
 
-#include <asm/compat.h>
+#include <linux/compat.h>
 
 static inline int
 perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry_ctx *entry)
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 2cbd75dd2fd3..160804ed875e 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -17,7 +17,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -46,16 +45,6 @@ typedef u32		compat_u32;
 typedef u64 __attribute__((aligned(4))) compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	u16		__pad1;
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index 09ad88572746..db25aa15b705 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -49,7 +49,7 @@ int ftrace_int3_handler(struct pt_regs *regs);
 #if !defined(__ASSEMBLY__) && !defined(COMPILE_OFFSETS)
 
 #if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_IA32_EMULATION)
-#include <asm/compat.h>
+#include <linux/compat.h>
 
 /*
  * Because ia32 syscalls do not map to x86_64 syscall numbers
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index 82c34ee25a65..8527b26ad36f 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -16,7 +16,7 @@
 #include <linux/linkage.h>
 #include <linux/types.h>
 #include <linux/signal.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/ia32.h>
 
 /* ia32/sys_ia32.c */
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 676774b9bb8d..9d8ea652e31c 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -19,7 +19,7 @@
 #include <linux/elf.h>
 
 #include <asm/elf.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/ia32.h>
 #include <asm/syscalls.h>
 #include <asm/mpx.h>
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 7bdc6aaa0ba3..2016e0ed5865 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -18,7 +18,6 @@
 #include <linux/fs.h>
 #include <linux/blkpg.h>
 #include <linux/slab.h>
-#include <asm/compat.h>
 #include <asm/ccwdev.h>
 #include <asm/schid.h>
 #include <asm/cmb.h>
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 61822480a2a0..16a4e8528bbc 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -19,7 +19,6 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 
-#include <asm/compat.h>
 #include <asm/ccwdev.h>
 #include <asm/cio.h>
 #include <asm/ebcdic.h>
diff --git a/drivers/s390/char/sclp_ctl.c b/drivers/s390/char/sclp_ctl.c
index a78cea0c3a09..248b5db3eaa8 100644
--- a/drivers/s390/char/sclp_ctl.c
+++ b/drivers/s390/char/sclp_ctl.c
@@ -14,7 +14,6 @@
 #include <linux/init.h>
 #include <linux/ioctl.h>
 #include <linux/fs.h>
-#include <asm/compat.h>
 #include <asm/sclp_ctl.h>
 #include <asm/sclp.h>
 
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index 17e411c57576..948ce82a7725 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -23,7 +23,6 @@
 #include <linux/mutex.h>
 #include <linux/cma.h>
 #include <linux/mm.h>
-#include <asm/compat.h>
 #include <asm/cpcmd.h>
 #include <asm/debug.h>
 #include <asm/vmcp.h>
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 0015729d917d..8d9f36625ba5 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -16,7 +16,6 @@
 #include <linux/miscdevice.h>
 #include <linux/kernel_stat.h>
 
-#include <asm/compat.h>
 #include <asm/cio.h>
 #include <asm/chsc.h>
 #include <asm/isc.h>
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 6abd3bc285e4..e070adf32cd4 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -32,7 +32,7 @@
 #include <asm/chpid.h>
 #include <asm/io.h>
 #include <asm/sysinfo.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/diag.h>
 #include <asm/cio.h>
 #include <asm/ccwdev.h>
diff --git a/include/linux/compat.h b/include/linux/compat.h
index b24aaf66feb4..2f79dac5ed65 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -7,6 +7,7 @@
  */
 
 #include <linux/types.h>
+#include <linux/compat_time.h>
 
 #include <linux/stat.h>
 #include <linux/param.h>	/* for HZ */
diff --git a/include/linux/compat_time.h b/include/linux/compat_time.h
new file mode 100644
index 000000000000..56a54a1e4355
--- /dev/null
+++ b/include/linux/compat_time.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_COMPAT_TIME_H
+#define _LINUX_COMPAT_TIME_H
+
+#include <linux/types.h>
+
+typedef s32		compat_time_t;
+
+struct compat_timespec {
+	compat_time_t	tv_sec;
+	s32		tv_nsec;
+};
+
+struct compat_timeval {
+	compat_time_t	tv_sec;
+	s32		tv_usec;
+};
+
+#endif /* _LINUX_COMPAT_TIME_H */
-- 
2.14.1

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From - Thu Nov 08 21:40:59 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: consolidate direct dma mapping V4
Date: Mon, 15 Jan 2018 23:52:43 -0800
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I've pulled this into the dma-mapping for-next branch so that we get
a few days exposure before then end of the merge window.  If there is
anything important (e.g. the powerpc naming issue) please send
incremental patches.

From - Thu Nov 08 21:40:59 2018
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Subject: Re: [PATCH v3 02/10] include: Move compat_timespec/ timeval to
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Date: Tue, 16 Jan 2018 09:30:29 +0000
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To: Deepa Dinamani <deepa.kernel@gmail.com>
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On Mon, Jan 15, 2018 at 06:18:10PM -0800, Deepa Dinamani wrote:
> All the current architecture specific defines for these
> are the same. Refactor these common defines to a common
> header file.
> 
> The new common linux/compat_time.h is also useful as it
> will eventually be used to hold all the defines that
> are needed for compat time types that support non y2038
> safe types. New architectures need not have to define these
> new types as they will only use new y2038 safe syscalls.
> This file can be deleted after y2038 when we stop supporting
> non y2038 safe syscalls.

For arm64:

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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From - Thu Nov 08 21:40:59 2018
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Newsgroups: gmane.linux.kernel.api,gmane.linux.kernel,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.oprofile,gmane.linux.ports.sparc
Subject: Re: [PATCH v3 00/10] posix_clocks: Prepare syscalls for 64 bit time_t conversion
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To: Deepa Dinamani <deepa.kernel-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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On Tue, Jan 16, 2018 at 3:18 AM, Deepa Dinamani <deepa.kernel-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> The series is a preparation series for individual architectures
> to use 64 bit time_t syscalls in compat and 32 bit emulation modes.
>
> This is a follow up to the series Arnd Bergmann posted:
> https://sourceware.org/ml/libc-alpha/2015-05/msg00070.html [1]
>
> Big picture is as per the lwn article:
> https://lwn.net/Articles/643234/ [2]
>
> The series is directed at converting posix clock syscalls:
> clock_gettime, clock_settime, clock_getres and clock_nanosleep
> to use a new data structure __kernel_timespec at syscall boundaries.
> __kernel_timespec maintains 64 bit time_t across all execution modes.
>
> vdso will be handled as part of each architecture when they enable
> support for 64 bit time_t.
>
> The compat syscalls are repurposed to provide backward compatibility
> by using them as native syscalls as well for 32 bit architectures.
> They will continue to use timespec at syscall boundaries.
>
> CONFIG_64_BIT_TIME controls whether the syscalls use __kernel_timespec
> or timespec at syscall boundaries.
>
> The series does the following:
> 1. Enable compat syscalls on 32 bit architectures.
> 2. Add a new __kernel_timespec type to be used as the data structure
>    for all the new syscalls.
> 3. Add new config CONFIG_64BIT_TIME(intead of the CONFIG_COMPAT_TIME in
>    [1] and [2] to switch to new definition of __kernel_timespec. It is
>    the same as struct timespec otherwise.
> 4. Add new CONFIG_32BIT_TIME to conditionally compile compat syscalls.

This looks all good to me. I think we should have this included in linux-next as
soon as possible, but this probably means after -rc1 at the current point, since
it's a bit late for 4.16.

I'll pick up the series into my randconfig build tree again to find
possible build
time regressions. Otherwise the way I'd stage it out is to put it into my y2038
branch after -rc1 and then send a pull request to Thomas for the tip tree
a week later. It seems unlikely that any major problems come up, so we could
plan to address additional requests for changes by adding commits on top
once it's in linux-next.

       Arnd

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The callee copies ABI used for 32-bit hppa causes no end of optimization 
issues and problems with
OpenMP.  The hppa target is only in Debian unstable and gentoo.  In both 
cases, packages are
rebuilt often.  So, Helge and I decided that it was better to break the 
ABI and accept whatever
problems that result from the switch.

Committed to trunk.

Dave

-- 
John David Anglin  dave.anglin@bell.net


--------------020703040208050507050902
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2018-01-16  John David Anglin  <danglin@gcc.gnu.org>

	* config.gcc (hppa*-*-linux*): Change callee copies ABI to caller
	copies.

Index: config.gcc
===================================================================
--- config.gcc	(revision 256716)
+++ config.gcc	(working copy)
@@ -1339,7 +1339,7 @@
 	gas=yes gnu_ld=yes
 	;;
 hppa*-*-linux*)
-	target_cpu_default="MASK_PA_11|MASK_NO_SPACE_REGS"
+	target_cpu_default="MASK_PA_11|MASK_NO_SPACE_REGS|MASK_CALLER_COPIES"
 	tm_file="${tm_file} dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h pa/pa-linux.h \
 		 pa/pa32-regs.h pa/pa32-linux.h"
 	tmake_file="${tmake_file} pa/t-linux"

--------------020703040208050507050902--
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Newsgroups: gmane.linux.ports.parisc,gmane.comp.gcc.patches
Subject: Re: [committed] hppa: Switch hppa-linux to caller copies ABI
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On Wed, Jan 17, 2018 at 3:00 AM, John David Anglin <dave.anglin@bell.net> wrote:
> The callee copies ABI used for 32-bit hppa causes no end of optimization
> issues and problems with
> OpenMP.  The hppa target is only in Debian unstable and gentoo.  In both
> cases, packages are
> rebuilt often.  So, Helge and I decided that it was better to break the ABI
> and accept whatever
> problems that result from the switch.
>
> Committed to trunk.

That deserves a warning in gcc-8/changes.html

Richard.

> Dave
>
> --
> John David Anglin  dave.anglin@bell.net
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On 2018-01-17 3:26 AM, Richard Biener wrote:
> That deserves a warning in gcc-8/changes.html
Done.
https://gcc.gnu.org/gcc-8/changes.html

Dave

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Subject: Running the gdb 7.12.1 testsuite breaks kernel 4.13.8 on C8000
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The last message I had for the crash below is:

Running /var/tmp/portage/sys-devel/gdb-7.12.1/work/gdb-7.12.1/gdb/testsuite/gdb.base/bp-permanent.exp ...

[  909.754182] Backtrace:
[  909.756303] 
[  909.756303] 
[  909.756303] Bad Address (null pointer deref?): Code=6 (Instruction TLB miss fault) regs=000000007c818a50 (Addr=0000000000000000)
[  909.756303] CPU: 0 PID: 5191 Comm: bp-permanent Not tainted 4.13.8 #2
[  909.756303] task: 000000007c8183d0 task.stack: 000000007aad8000
[  909.756303] 
[  909.756303]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[  909.756303] PSW: 00000000000001000000011100001111 Not tainted
[  909.756303] r00-03  000000000004070f 00000000f8f07840 00000000000106bb 00000000f8f07880
[  909.756303] r04-07  00000000f815bc70 00000000000e87a0 0000000000000000 00000000000e8818
[  909.756303] r08-11  0000000000000000 0000000000000000 000000000000006c 0000000000000000
[  909.756303] r12-15  0000000000000000 0000000000000000 0000000000080a74 00000000000e83f8
[  909.756303] r16-19  00000000000c85c8 00000000000cbad8 00000000000c99e8 00000000f815bc70
[  909.756303] r20-23  00000000000120bc 0000000000000004 ffffffffffffe520 0000000000012022
[  909.756303] r24-27  00000000000120bc 00000000000105d8 00000000000120b8 0000000000012000
[  909.756303] r28-31  00000000000120b8 0000000000000001 00000000f8f078c0 00000000f8bffa9f
[  909.756303] sr00-03  00000000010a1800 00000000010a1800 0000000000000000 00000000010a1800
[  909.756303] sr04-07  00000000010a1800 00000000010a1800 00000000010a1800 00000000010a1800
[  909.756303] 
[  909.756303] IASQ: 00000000010a1800 00000000010a1800 IAOQ: 0000000000000000 0000000000000004
[  909.756303]  IIR: 43ffff80    ISR: 0000000010240000  IOR: 000000a43fb07880
[  909.756303]  CPU:        0   CR30: 000000007aad8000 CR31: ffffffffffffffff
[  909.756303]  ORIG_R28: 0000000000000000
[  909.756303]  IAOQ[0]:           (null)
[  909.756303]  IAOQ[1]: 0x4
[  909.756303]  RP(r2): 0x106bb
[  909.756303] Backtrace:
[  909.756303] 
[  909.756303] Kernel panic - not syncing: Bad Address (null pointer deref?)
[  909.756303] ---[ end Kernel panic - not syncing: Bad Address (null pointer deref?)

This is actually the second place where it breaks, before that I had the same 
with this test (twice):

Running /var/tmp/portage/sys-devel/gdb-7.12.1/work/gdb-7.12.1/gdb/testsuite/gdb.base/async.exp ...

It's a Gentoo system, the kernel has been built with gcc 6.4.0.


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On 2018-01-25 3:59 AM, Rolf Eike Beer wrote:
> [  909.756303] Kernel panic - not syncing: Bad Address (null pointer deref?)
> [  909.756303] ---[ end Kernel panic - not syncing: Bad Address (null pointer deref?)
>
> This is actually the second place where it breaks, before that I had the same
> with this test (twice):
Would you post the PIM dump of the most recent HPMC in the service 
menu?  Also needed
is the assembler dump of the routine where the HPMC occurred in your 
kernel.  You need the
64-bit version of objdump for this.

There's no info in the posted register dump about the panic other than 
it was probably generated
by the exception.

Dave

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John David Anglin wrote:
> On 2018-01-25 3:59 AM, Rolf Eike Beer wrote:
>> [  909.756303] Kernel panic - not syncing: Bad Address (null pointer 
>> deref?)
>> [  909.756303] ---[ end Kernel panic - not syncing: Bad Address (null 
>> pointer deref?)
>> 
>> This is actually the second place where it breaks, before that I had 
>> the same
>> with this test (twice):
> Would you post the PIM dump of the most recent HPMC in the service
> menu?

The service menu does not give any information, as in this older bug: 
https://bugs.gentoo.org/481768

> Also needed
> is the assembler dump of the routine where the HPMC occurred in your
> kernel.  You need the
> 64-bit version of objdump for this.

I have put the kernel on 
https://opensource.sf-tec.de/c8000-kernel.tar.xz

Eike
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de

Mit freundlichen Gr=C3=BC=C3=9Fen.

Peter Schuster

Financial Bank
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On 25.01.2018 16:36, Rolf Eike Beer wrote:
> John David Anglin wrote:
>> On 2018-01-25 3:59 AM, Rolf Eike Beer wrote:
>>> [  909.756303] Kernel panic - not syncing: Bad Address (null pointer deref?)
>>> [  909.756303] ---[ end Kernel panic - not syncing: Bad Address (null pointer deref?)
>>>
>>> This is actually the second place where it breaks, before that I had the same
>>> with this test (twice):
>> Would you post the PIM dump of the most recent HPMC in the service
>> menu?
> 
> The service menu does not give any information, as in this older bug: https://bugs.gentoo.org/481768

FWIW, I've tested the testcase from 
 https://bugs.gentoo.org/481768
on a debian system:
Linux panama.osuosl.org 4.14.0-2-parisc64-smp #1 SMP Debian 4.14.7-1 (2017-12-28) parisc64 GNU/Linux
gdb was version 7.12-6+b1

On debian I can not reproduce the crash.

With this sequence:
(gdb) break gdb-crash.c:14
(gdb) run
(gdb) set tp = {0,0}

tp isn't initialized yet before you reach line 25, and as such it points to random memory.
I you try to set tp, it depends on what happens (but agreed, it shouldn't
crash the kernel).

The Debian kernel hasn't any additional hppa-specific patches.  

>> Also needed
>> is the assembler dump of the routine where the HPMC occurred in your
>> kernel.  You need the
>> 64-bit version of objdump for this.

I wonder why there isn't any kernel backtrace...
Does gentoo uses special compiler-optimization flags?

> I have put the kernel on https://opensource.sf-tec.de/c8000-kernel.tar.xz

I'd suggest you put some debugging code in your kernel, e.g. in
compat_ptrace_request() in kernel/ptrace.c.
I think gdb uses PTRACE_POKEDATA to set some userspace memory of a process.
It's generic code, so I wonder why it should crash on parisc.

You may look at compat_arch_ptrace() in arch/parisc/kernel/ptrace.c too, but
it doesn't touch memory as far as I can see...

Helge
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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Subject: Re: Running the gdb 7.12.1 testsuite breaks kernel 4.13.8 on C8000
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Am Freitag, 26. Januar 2018, 23:31:46 schrieb Helge Deller:
> On 25.01.2018 16:36, Rolf Eike Beer wrote:
> > John David Anglin wrote:
> >> On 2018-01-25 3:59 AM, Rolf Eike Beer wrote:
> >>> [  909.756303] Kernel panic - not syncing: Bad Address (null pointer
> >>> deref?) [  909.756303] ---[ end Kernel panic - not syncing: Bad Address
> >>> (null pointer deref?)
> >>> 
> >>> This is actually the second place where it breaks, before that I had the
> >>> same>> 
> >>> with this test (twice):
> >> Would you post the PIM dump of the most recent HPMC in the service
> >> menu?
> > 
> > The service menu does not give any information, as in this older bug:
> > https://bugs.gentoo.org/481768
> FWIW, I've tested the testcase from
>  https://bugs.gentoo.org/481768
> on a debian system:
> Linux panama.osuosl.org 4.14.0-2-parisc64-smp #1 SMP Debian 4.14.7-1
> (2017-12-28) parisc64 GNU/Linux gdb was version 7.12-6+b1
> 
> On debian I can not reproduce the crash.
> 
> With this sequence:
> (gdb) break gdb-crash.c:14
> (gdb) run
> (gdb) set tp = {0,0}
> 
> tp isn't initialized yet before you reach line 25, and as such it points to
> random memory. I you try to set tp, it depends on what happens (but agreed,
> it shouldn't crash the kernel).
> 
> The Debian kernel hasn't any additional hppa-specific patches.

I'm using vanilla, so nothing on my side either.

> >> Also needed
> >> is the assembler dump of the routine where the HPMC occurred in your
> >> kernel.  You need the
> >> 64-bit version of objdump for this.
> 
> I wonder why there isn't any kernel backtrace...

This was with "dmesg -n 8". Without it has shown only the "Bad address" and 
"end Kernel panic" lines, which is IMHO bad by itself.

> Does gentoo uses special compiler-optimization flags?

I have none.

> > I have put the kernel on https://opensource.sf-tec.de/c8000-kernel.tar.xz
> 
> I'd suggest you put some debugging code in your kernel, e.g. in
> compat_ptrace_request() in kernel/ptrace.c.
> I think gdb uses PTRACE_POKEDATA to set some userspace memory of a process.
> It's generic code, so I wonder why it should crash on parisc.
> 
> You may look at compat_arch_ptrace() in arch/parisc/kernel/ptrace.c too, but
> it doesn't touch memory as far as I can see...

I will not be able to touch any of this until at least mid of next week. If 
you want to give it a try, check gdb 7.12.1 testsuite. It was one of the first 
tests that hit this.

Eike
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Subject: Re: Running the gdb 7.12.1 testsuite breaks kernel 4.13.8 on C8000
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Hi Rolf,

On 27.01.2018 18:42, Rolf Eike Beer wrote:
> Am Freitag, 26. Januar 2018, 23:31:46 schrieb Helge Deller:
>> On 25.01.2018 16:36, Rolf Eike Beer wrote:
>>> John David Anglin wrote:
>>>> On 2018-01-25 3:59 AM, Rolf Eike Beer wrote:
>>>>> [  909.756303] Kernel panic - not syncing: Bad Address (null pointer
>>>>> deref?) [  909.756303] ---[ end Kernel panic - not syncing: Bad Address
>>>>> (null pointer deref?)
>>>>>
>>>>> This is actually the second place where it breaks, before that I had the
>>>>> same>> 
>>>>> with this test (twice):
>>>> Would you post the PIM dump of the most recent HPMC in the service
>>>> menu?
>>>
>>> The service menu does not give any information, as in this older bug:
>>> https://bugs.gentoo.org/481768
>> FWIW, I've tested the testcase from
>>  https://bugs.gentoo.org/481768
>> on a debian system:
>> Linux panama.osuosl.org 4.14.0-2-parisc64-smp #1 SMP Debian 4.14.7-1
>> (2017-12-28) parisc64 GNU/Linux gdb was version 7.12-6+b1
>>
>> On debian I can not reproduce the crash.
>>
>> With this sequence:
>> (gdb) break gdb-crash.c:14
>> (gdb) run
>> (gdb) set tp = {0,0}
>>
>> tp isn't initialized yet before you reach line 25, and as such it points to
>> random memory. I you try to set tp, it depends on what happens (but agreed,
>> it shouldn't crash the kernel).
>>
>> The Debian kernel hasn't any additional hppa-specific patches.
> 
> I'm using vanilla, so nothing on my side either.
> 
>>>> Also needed
>>>> is the assembler dump of the routine where the HPMC occurred in your
>>>> kernel.  You need the
>>>> 64-bit version of objdump for this.
>>
>> I wonder why there isn't any kernel backtrace...
> 
> This was with "dmesg -n 8". Without it has shown only the "Bad address" and 
> "end Kernel panic" lines, which is IMHO bad by itself.
> 
>> Does gentoo uses special compiler-optimization flags?
> 
> I have none.
> 
>>> I have put the kernel on https://opensource.sf-tec.de/c8000-kernel.tar.xz
>>
>> I'd suggest you put some debugging code in your kernel, e.g. in
>> compat_ptrace_request() in kernel/ptrace.c.
>> I think gdb uses PTRACE_POKEDATA to set some userspace memory of a process.
>> It's generic code, so I wonder why it should crash on parisc.
>>
>> You may look at compat_arch_ptrace() in arch/parisc/kernel/ptrace.c too, but
>> it doesn't touch memory as far as I can see...
> 
> I will not be able to touch any of this until at least mid of next week. If 
> you want to give it a try, check gdb 7.12.1 testsuite. It was one of the first 
> tests that hit this.

As I said before, I can't reproduce this on debian.
gdb does not (and never has) crash(ed) the system, as can be seen in the various build logs:
 https://buildd.debian.org/status/logs.php?pkg=gdb&arch=hppa
e.g.:
 https://buildd.debian.org/status/fetch.php?pkg=gdb&arch=hppa&ver=7.12-6%2Bb1&stamp=1507997688&raw=0

Helge
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Subject: Re: Running the gdb 7.12.1 testsuite breaks kernel 4.13.8 on C8000
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On 2018-01-27 1:41 PM, Helge Deller wrote:
> As I said before, I can't reproduce this on debian.
> gdb does not (and never has) crash(ed) the system, as can be seen in the various build logs:
>   https://buildd.debian.org/status/logs.php?pkg=gdb&arch=hppa
I just built binutils-gdb trunk successfully.

Dave

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Cc: linux-mips@linux-mips.org, linux-ia64@vger.kernel.org,
 linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
 Guan Xuetao <gxt@mprc.pku.edu.cn>, linux-arch@vger.kernel.org,
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To: Christoph Hellwig <hch@lst.de>, iommu@lists.linux-foundation.org
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On 01/12/2018 12:42 AM, Christoph Hellwig wrote:
> To implement the x86 forbid_dac and iommu_sac_force we want an arch hook
> so that it can apply the global options across all dma_map_ops
> implementations.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  arch/x86/include/asm/dma-mapping.h |  3 +++
>  arch/x86/kernel/pci-dma.c          | 19 ++++++++++++-------
>  include/linux/dma-mapping.h        | 11 +++++++++++
>  3 files changed, 26 insertions(+), 7 deletions(-)

> diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
> index 88bcb1a8211d..d67742dad904 100644
> --- a/include/linux/dma-mapping.h
> +++ b/include/linux/dma-mapping.h
> @@ -576,6 +576,14 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
>  	return 0;
>  }
>  
> +/*
> + * This is a hack for the legacy x86 forbid_dac and iommu_sac_force. Please
> + * don't use this is new code.

                     in new code.

> + */
> +#ifndef arch_dma_supported
> +#define arch_dma_supported(dev, mask)	(1)
> +#endif


-- 
~Randy

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When run under qemu, calling mfctl(16) creates some overhead because the
qemu timer has to be scaled and moved into the register. This patch
reduces the number of calls to mfctl(16) by moving the calls out of the
loops.

Additionally, increase the minimal time interval to 8000 cycles instead
of 500 for better QEMU support.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 4b8fd6dc22da..743a8933cd47 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -76,10 +76,10 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 	next_tick = cpuinfo->it_value;
 
 	/* Calculate how many ticks have elapsed. */
+	now = mfctl(16);
 	do {
 		++ticks_elapsed;
 		next_tick += cpt;
-		now = mfctl(16);
 	} while (next_tick - now > cpt);
 
 	/* Store (in CR16 cycles) up to when we are accounting right now. */
@@ -103,16 +103,17 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 	 * if one or the other wrapped. If "now" is "bigger" we'll end up
 	 * with a very large unsigned number.
 	 */
-	while (next_tick - mfctl(16) > cpt)
+	now = mfctl(16);
+	while (next_tick - now > cpt)
 		next_tick += cpt;
 
 	/* Program the IT when to deliver the next interrupt.
 	 * Only bottom 32-bits of next_tick are writable in CR16!
 	 * Timer interrupt will be delivered at least a few hundred cycles
-	 * after the IT fires, so if we are too close (<= 500 cycles) to the
+	 * after the IT fires, so if we are too close (<= 8000 cycles) to the
 	 * next cycle, simply skip it.
 	 */
-	if (next_tick - mfctl(16) <= 500)
+	if (next_tick - now <= 8000)
 		next_tick += cpt;
 	mtctl(next_tick, 16);
 
--
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From - Thu Nov 08 21:41:00 2018
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From: John David Anglin <dave.anglin@bell.net>
Newsgroups: gmane.linux.ports.parisc
Subject: [PATCH] parisc: Fix ordering of cache and TLB flushes
Date: Mon, 12 Feb 2018 19:26:57 -0500
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This is a multi-part message in MIME format.
--------------2BAE6F35268CB68C48C05E2E
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The attached change fixes the ordering of cache and TLB flushes in 
several cases.  When we
flush the cache using the existing PTE/TLB entries, we need to flush the 
TLB after doing the cache
flush.  We don't need to do this when we flush the entire instruction 
and data caches as these
flushes don't use the existing TLB entries.  The same is true for 
tmpalias region flushes.

The flush_kernel_vmap_range() and invalidate_kernel_vmap_range() 
routines have been
updated.   Helge reported that using  flush_data_cache() on PA 1.1 
causes a deadlock in the
dynamic DMA routines in pci-dma.c in SMP kernels.  So, we have disabled 
using the whole
data cache flush in this case.  This fixes PA 1.1 SMP support.

Secondly, we added a new purge_kernel_dcache_range_asm() routine to 
pacache.S and
use it in invalidate_kernel_vmap_range().  Nominally, purges are faster 
than flushes as the
cache lines don't have to be written back to memory.

Hopefully, this is sufficient to resolve the remaining problems due to 
cache speculation.  So far,
testing indicates that this is the case.  I did work up a patch using 
tmpalias flushes, but there
is a performance hit because we need the physical address for each page, 
and we also need
to sequence access to the tmpalias flush code.  This increases the 
probability of stalls.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>


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Subject: parisc 4.16-rc1 error: ERROR: "$$remU" [drivers/net/tun.ko]
 undefined!
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I am compiling todays git on HP A500 (Gentoo) and it fails with this 
error. Strange thing is that it did work on RP3410 and RP3440 - I may 
have different kernel configuration there but Gentoo state is roughly 
the same (maybe days apart but not months).

  MODPOST 9 modules
ERROR: "$$remU" [drivers/net/tun.ko] undefined!
make[1]: *** [scripts/Makefile.modpost:92: __modpost] Error 1


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Subject: Re: parisc 4.16-rc1 error: ERROR: "$$remU" [drivers/net/tun.ko]
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On 2018-02-13 8:55 AM, Meelis Roos wrote:
>    MODPOST 9 modules
> ERROR: "$$remU" [drivers/net/tun.ko] undefined!
> make[1]: *** [scripts/Makefile.modpost:92: __modpost] Error 1
I believe $$remU comes from the millicode library milli.a.  It is 
bundled with compiler.
Try adding V=1 to the make command so you can see the gcc command for 
the above.

Dave

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Subject: Re: parisc 4.16-rc1 error: ERROR: "$$remU" [drivers/net/tun.ko]
 undefined!
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> On 2018-02-13 8:55 AM, Meelis Roos wrote:
> >    MODPOST 9 modules
> > ERROR: "$$remU" [drivers/net/tun.ko] undefined!
> > make[1]: *** [scripts/Makefile.modpost:92: __modpost] Error 1
> I believe $$remU comes from the millicode library milli.a.  It is bundled with
> compiler.
> Try adding V=1 to the make command so you can see the gcc command for the
> above.

The command is modpost:

  find .tmp_versions -name '*.mod' | xargs -r grep -h '\.ko$' | sort -u | sed 's/\.ko$/.o/' | scripts/mod/modpost   -o ./Module.symvers    -S    -s -T -
ERROR: "$$remU" [drivers/net/tun.ko] undefined!

hppa64-linux-objdump --disassemble drivers/net/tun.ko
and
hppa64-linux-nm drivers/net/tun.ko
do not show any sign of the $$remU.

mroos@a500 ~/linux $ fgrep -r '$$remU' arch/parisc/ 
arch/parisc/kernel/parisc_ksyms.c:extern void $$remU(void);
arch/parisc/kernel/parisc_ksyms.c:EXPORT_SYMBOL($$remU);

It's in /usr/lib/gcc/hppa64-unknown-linux-gnu/5.4.0/libgcc.a

CONFIG_CROSS_COMPILE="hppa64-linux-" - maybe modpost gets this wrong 
somehow?

mroos@a500 ~/linux $ file scripts/mod/modpost
scripts/mod/modpost: ELF 32-bit MSB executable, PA-RISC, *unknown arch 0xf* version 1 (GNU/Linux), dynamically linked, interpreter /lib/ld.so.1, for GNU/Linux 3.2.0, not stripped

This is strange, *unknown arch 0xf* ?? This hould be native binary... 
yes, all my binaries under /bin have this arch, so my toolchain is 
broken is some funny way...

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Subject: Re: parisc 4.16-rc1 error: ERROR: "$$remU" [drivers/net/tun.ko]
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On 13.02.2018 20:55, Meelis Roos wrote:
>> On 2018-02-13 8:55 AM, Meelis Roos wrote:
>>>    MODPOST 9 modules
>>> ERROR: "$$remU" [drivers/net/tun.ko] undefined!
>>> make[1]: *** [scripts/Makefile.modpost:92: __modpost] Error 1
>> I believe $$remU comes from the millicode library milli.a.  It is bundled with
>> compiler.
>> Try adding V=1 to the make command so you can see the gcc command for the
>> above.
> 
> The command is modpost:
> 
>   find .tmp_versions -name '*.mod' | xargs -r grep -h '\.ko$' | sort -u | sed 's/\.ko$/.o/' | scripts/mod/modpost   -o ./Module.symvers    -S    -s -T -
> ERROR: "$$remU" [drivers/net/tun.ko] undefined!
> 
> hppa64-linux-objdump --disassemble drivers/net/tun.ko
> and
> hppa64-linux-nm drivers/net/tun.ko
> do not show any sign of the $$remU.
> 
> mroos@a500 ~/linux $ fgrep -r '$$remU' arch/parisc/ 
> arch/parisc/kernel/parisc_ksyms.c:extern void $$remU(void);
> arch/parisc/kernel/parisc_ksyms.c:EXPORT_SYMBOL($$remU);

Yes, that's correct.
The linux kernel executable should link in libgcc.a, thus include
the $$remU symbol (from libgcc.a) and then be able to export it to
linux kernel modules if necessary. 
 
> It's in /usr/lib/gcc/hppa64-unknown-linux-gnu/5.4.0/libgcc.a

Yes, it should be in some libgcc.a file which is linked into the kernel.
For me:
root@phantom:/usr/lib# hppa64-linux-gnu-objdump -x ./gcc/hppa64-linux-gnu/4.9/libgcc.a | grep remU | grep text
0000000000000000 g       .text  0000000000000144 .hidden $$remU


> CONFIG_CROSS_COMPILE="hppa64-linux-" - maybe modpost gets this wrong 
> somehow?

It says for you:
> ERROR: "$$remU" [drivers/net/tun.ko] undefined!

I would be astonished if $$remU hasn't been included in your kernel executable.

> mroos@a500 ~/linux $ file scripts/mod/modpost
> scripts/mod/modpost: ELF 32-bit MSB executable, PA-RISC, *unknown arch 0xf* version 1 (GNU/Linux), dynamically linked, interpreter /lib/ld.so.1, for GNU/Linux 3.2.0, not stripped
> 
> This is strange, *unknown arch 0xf* ?? This hould be native binary... 
> yes, all my binaries under /bin have this arch, so my toolchain is 
> broken is some funny way...

That's normal and not related to your $$remU problem.

Helge
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From - Thu Nov 08 21:41:01 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [PATCH] parisc: Improve cache flushing under qemu
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In QEMU we emulate a machine without any data or instruction caches.
Avoid calling the assembly cache flush functions when we have no caches
improves speed with qemu a lot.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index d5381b3e8f95..b4b6f6631d3b 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -55,11 +55,17 @@ static struct pdc_btlb_info btlb_info __read_mostly;
 void
 flush_data_cache(void)
 {
+	if (unlikely(!cache_info.dc_size))
+		return;
+
 	on_each_cpu(flush_data_cache_local, NULL, 1);
 }
 void 
 flush_instruction_cache(void)
 {
+	if (unlikely(!cache_info.ic_size))
+		return;
+
 	on_each_cpu(flush_instruction_cache_local, NULL, 1);
 }
 #endif
@@ -67,8 +73,10 @@ flush_instruction_cache(void)
 void
 flush_cache_all_local(void)
 {
-	flush_instruction_cache_local(NULL);
-	flush_data_cache_local(NULL);
+	if (likely(cache_info.ic_size))
+		flush_instruction_cache_local(NULL);
+	if (likely(cache_info.dc_size))
+		flush_data_cache_local(NULL);
 }
 EXPORT_SYMBOL(flush_cache_all_local);
 
@@ -506,7 +515,8 @@ static void cacheflush_h_tmp_function(void *dummy)
 
 void flush_cache_all(void)
 {
-	on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
+	if (likely(cache_info.dc_size || cache_info.ic_size))
+		on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
 }
 
 static inline unsigned long mm_total_size(struct mm_struct *mm)
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From - Thu Nov 08 21:41:01 2018
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From: Meelis Roos <mroos@linux.ee>
Newsgroups: gmane.linux.ports.parisc
Subject: Re: parisc 4.16-rc1 error: ERROR: "$$remU" [drivers/net/tun.ko]
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Since the error was strange, I ran "make clean" and make and the error 
was gone. So something in the build system might have missed a 
recompilation need (maybe) but my problem is gone. The new kernel is 
running fine.

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From: John David Anglin <dave.anglin@bell.net>
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Subject: [PATCH v2] parisc: Fix ordering of cache and TLB flushes
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This is a multi-part message in MIME format.
--------------FD627F9E6A6043AB9BD1BCBE
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I messed up the change to flush_cache_mm() in the first version.

The attached change fixes the ordering of cache and TLB flushes in 
several cases.  When we
flush the cache using the existing PTE/TLB entries, we need to flush the 
TLB after doing the cache
flush.  We don't need to do this when we flush the entire instruction 
and data caches as these
flushes don't use the existing TLB entries.  The same is true for 
tmpalias region flushes.

The flush_kernel_vmap_range() and invalidate_kernel_vmap_range() 
routines have been
updated.   Helge reported that using  flush_data_cache() on PA 1.1 
causes a deadlock in the
dynamic DMA routines in pci-dma.c in SMP kernels.  So, we have disabled 
using the whole
data cache flush in this case.  This fixes PA 1.1 SMP support.

Secondly, we added a new purge_kernel_dcache_range_asm() routine to 
pacache.S and
use it in invalidate_kernel_vmap_range().  Nominally, purges are faster 
than flushes as the
cache lines don't have to be written back to memory.

Hopefully, this is sufficient to resolve the remaining problems due to 
cache speculation.  So far,
testing indicates that this is the case.  I did work up a patch using 
tmpalias flushes, but there
is a performance hit because we need the physical address for each page, 
and we also need
to sequence access to the tmpalias flush code.  This increases the 
probability of stalls.

Signed-off-by: John David Anglin  <dave.anglin@bell.net>


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From - Thu Nov 08 21:41:01 2018
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Subject: Re: [PATCH 04/11] signal/parisc: Document a conflict with SI_USER with SIGFPE
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Xref: news.gmane.org gmane.linux.kernel:2697202 gmane.linux.ports.parisc:28302 gmane.linux.kernel.cross-arch:42464
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2697202>

Helge Deller <deller@gmx.de> writes:

> On 23.02.2018 01:15, Eric W. Biederman wrote:
>> Helge Deller <deller@gmx.de> writes:
>> 
>>> * Eric W. Biederman <ebiederm@xmission.com>:
>>>> Setting si_code to 0 results in a userspace seeing an si_code of 0.
>>>> This is the same si_code as SI_USER.  Posix and common sense requires
>>>> that SI_USER not be a signal specific si_code.  As such this use of 0
>>>> for the si_code is a pretty horribly broken ABI.
>>>>
>>>> Further use of si_code == 0 guaranteed that copy_siginfo_to_user saw a
>>>> value of __SI_KILL and now sees a value of SIL_KILL with the result
>>>> that uid and pid fields are copied and which might copying the si_addr
>>>> field by accident but certainly not by design.  Making this a very
>>>> flakey implementation.
>>>>
>>>> Utilizing FPE_FIXME siginfo_layout will now return SIL_FAULT and the
>>>> appropriate fields will reliably be copied.
>>>>
>>>> This bug is 13 years old and parsic machines are no longer being built
>>>> so I don't know if it possible or worth fixing it.  But it is at least
>>>> worth documenting this so other architectures don't make the same
>>>> mistake.
>>>
>>>
>>> I think we should fix it, even if we now break the ABI.
>>>
>>> It's about a "conditional trap" which needs to be handled by userspace.
>>> I doubt there is any Linux code out which is utilizing this
>>> parisc-specific trap.
>>>
>>> I'd suggest to add a new FPE trap si_code (e.g. FPE_CONDTRAP).
>>> While at it, maybe we should include the already existing FPE_MDAOVF
>>> from the frv architecture, so that arch/frv/include/uapi/asm/siginfo.h
>>> can go completely.
>>>
>>> Suggested patch is below.
>>>
>>> I'm willing to test the patch below on the parisc architecture for a few
>>> weeks. And it will break arch/x86/kernel/signal_compat.c which needs
>>> looking at then too.
>> 
>> Have you managed to test this change?
>
> Sadly I haven't done any further testing yet.

So at this point for purposed of testing I don't think it matters which
number FPE_CONDTRAP gets as long as it is non-zero.
>  
>> I am sitting looking at another new FPE si_code and if this has been tested
>> I figure FPE_CONDTRAP should get the next available FPE si_code and the
>> other change should get the one that follows.
>
> I'm fine either way. Do you have a git tree I can pull which includes
> all your patches? I can then start testing.

Everything finalized is in Linus's tree.  There is a patch pending
review on linux-arch that defines FPE_FLTUNK that looks to be useful
on several architectures.

I had probably misread our earlier exchange.  I had hoped you had tested
that FPE_CONDTRAP did not cause problems.

If that level of testing was complete I would have given FPE_CONDTRAP
the next FPE number and FPE_FLTUNK the one after.

As it sounds like FPE_CONDTRAP hasn't been tested enough to know if it
causes problems I will encourage the patches to be merged in the other
order.

Eric



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Subject: [GIT PULL] parisc architecture fixes for 4.16-rc4
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Hi Linus,

please pull a few small updates and fixes for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.16-1

Changes:
- A patch to change the ordering of cache and TLB flushes to hopefully fix the
  random segfaults we very rarely face (by Dave Anglin).
- A patch to hide the virtual kernel memory layout due to security reasons.
- Two small patches to make the kernel run more smoothly under qemu.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (4):
      parisc: Hide virtual kernel memory layout
      parisc: Check if secondary CPUs want own PDC calls
      parisc: Use cr16 interval timers unconditionally on qemu
      parisc: Reduce irq overhead when run in qemu

John David Anglin (1):
      parisc: Fix ordering of cache and TLB flushes

 arch/parisc/include/asm/cacheflush.h |  1 +
 arch/parisc/include/asm/processor.h  |  2 ++
 arch/parisc/kernel/cache.c           | 57 ++++++++++++++++++++----------------
 arch/parisc/kernel/head.S            | 18 ++++++++----
 arch/parisc/kernel/pacache.S         | 22 ++++++++++++++
 arch/parisc/kernel/smp.c             |  7 ++++-
 arch/parisc/kernel/time.c            | 11 +++----
 arch/parisc/mm/init.c                |  7 ++++-
 8 files changed, 86 insertions(+), 39 deletions(-)


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Subject: Re: [PATCH v3 02/10] include: Move compat_timespec/ timeval to
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Date: Fri, 2 Mar 2018 21:57:02 +0000
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On Mon, Jan 15, 2018 at 06:18:10PM -0800, Deepa Dinamani wrote:
> All the current architecture specific defines for these
> are the same. Refactor these common defines to a common
> header file.
>=20
> The new common linux/compat_time.h is also useful as it
> will eventually be used to hold all the defines that
> are needed for compat time types that support non y2038
> safe types. New architectures need not have to define these
> new types as they will only use new y2038 safe syscalls.
> This file can be deleted after y2038 when we stop supporting
> non y2038 safe syscalls.

=2E..

>  arch/mips/include/asm/compat.h    | 11 -----------
>  arch/mips/kernel/signal32.c       |  2 +-

For MIPS:
Acked-by: James Hogan <jhogan@kernel.org>

Cheers
James

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_______________________________________________
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Subject: Re: [PATCH v3 02/10] include: Move compat_timespec/ timeval
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Subject: Re: [PATCH v3 02/10] include: Move compat_timespec/ timeval to
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To: Deepa Dinamani <deepa.kernel@gmail.com>, tglx@linutronix.de,
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On 01/16/2018 03:18 AM, Deepa Dinamani wrote:
> All the current architecture specific defines for these
> are the same. Refactor these common defines to a common
> header file.
> 
> The new common linux/compat_time.h is also useful as it
> will eventually be used to hold all the defines that
> are needed for compat time types that support non y2038
> safe types. New architectures need not have to define these
> new types as they will only use new y2038 safe syscalls.
> This file can be deleted after y2038 when we stop supporting
> non y2038 safe syscalls.

You are now include a <linux/*.h> from several asm files
(
 arch/arm64/include/asm/stat.h   
 arch/s390/include/asm/elf.h     
 arch/x86/include/asm/ftrace.h   
 arch/x86/include/asm/sys_ia32.h 
)
It works, and it is done in many places, but it looks somewhat weird.
Would it make sense to have an asm-generic/compate-time.h instead? Asking for
opinions here.

> 
> The patch also requires an operation similar to:
> 
> git grep "asm/compat\.h" | cut -d ":" -f 1 |  xargs -n 1 sed -i -e "s%asm/compat.h%linux/compat.h%g"

some comments from the s390 perspective:

> --- a/arch/s390/hypfs/hypfs_sprp.c
> +++ b/arch/s390/hypfs/hypfs_sprp.c
ok.
[...]
> --- a/arch/s390/include/asm/elf.h
> +++ b/arch/s390/include/asm/elf.h
> @@ -126,7 +126,7 @@
>   */
> 
>  #include <asm/ptrace.h>
> -#include <asm/compat.h>
> +#include <linux/compat.h>
>  #include <asm/syscall.h>
>  #include <asm/user.h>

see above.
[...]
> --- a/arch/s390/kvm/priv.c
> +++ b/arch/s390/kvm/priv.c
ok
> --- a/arch/s390/pci/pci_clp.c
> +++ b/arch/s390/pci/pci_clp.c
ok
> --- a/drivers/s390/block/dasd_ioctl.c
> +++ b/drivers/s390/block/dasd_ioctl.c
ok 
> --- a/drivers/s390/char/fs3270.c
> +++ b/drivers/s390/char/fs3270.c
ok
> --- a/drivers/s390/char/sclp_ctl.c
> +++ b/drivers/s390/char/sclp_ctl.c
ok
> --- a/drivers/s390/char/vmcp.c
> +++ b/drivers/s390/char/vmcp.c
ok
> --- a/drivers/s390/cio/chsc_sch.c
> +++ b/drivers/s390/cio/chsc_sch.c
ok

> --- a/drivers/s390/net/qeth_core_main.c
> +++ b/drivers/s390/net/qeth_core_main.c
> @@ -32,7 +32,7 @@
>  #include <asm/chpid.h>
>  #include <asm/io.h>
>  #include <asm/sysinfo.h>
> -#include <asm/compat.h>
> +#include <linux/compat.h>
>  #include <asm/diag.h>
>  #include <asm/cio.h>
>  #include <asm/ccwdev.h>

Can you move that into the other includes (where all the other <linux/*> includes are.



From - Thu Nov 08 21:41:02 2018
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Subject: Re: [PATCH v3 02/10] include: Move compat_timespec/ timeval
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Date: Tue, 6 Mar 2018 13:46:30 +0100
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From: Christian Borntraeger <borntraeger@de.ibm.com>
Newsgroups: gmane.linux.kernel.year-2038,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.oprofile,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v3 02/10] include: Move compat_timespec/ timeval
 to compat_time.h
Date: Tue, 6 Mar 2018 13:48:22 +0100
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Approved: news@gmane.org
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH] parisc: time: stop validating rtc_time in .read_time
Date: Tue, 6 Mar 2018 22:20:26 +0100
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Cc: "James E . J . Bottomley" <jejb@parisc-linux.org>,
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To: Alexandre Belloni <alexandre.belloni@bootlin.com>
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On 21.02.2018 22:40, Alexandre Belloni wrote:
> The RTC core is always calling rtc_valid_tm after the read_time callback.
> It is not necessary to call it just before returning from the callback.
> 
> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Acked-by: Helge Deller <deller@gmx.de>

Thanks!
Helge


> ---
>  arch/parisc/kernel/time.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
> index 4b8fd6dc22da..f2890bd240f8 100644
> --- a/arch/parisc/kernel/time.c
> +++ b/arch/parisc/kernel/time.c
> @@ -173,7 +173,7 @@ static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
>  
>  	/* we treat tod_sec as unsigned, so this can work until year 2106 */
>  	rtc_time64_to_tm(tod_data.tod_sec, tm);
> -	return rtc_valid_tm(tm);
> +	return 0;
>  }
>  
>  static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
> 



From - Thu Nov 08 21:41:02 2018
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From: Deepa Dinamani <deepa.kernel@gmail.com>
Newsgroups: gmane.linux.drivers.driver-project.devel,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.kernel.year-2038,gmane.linux.oprofile,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v3 02/10] include: Move compat_timespec/ timeval to
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Date: Tue, 6 Mar 2018 14:58:45 -0800
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 "James E.J. Bottomley" <jejb@parisc-linux.org>, Ingo Molnar <mingo@redhat.com>,
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To: Christian Borntraeger <borntraeger@de.ibm.com>
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On Tue, Mar 6, 2018 at 4:48 AM, Christian Borntraeger
<borntraeger@de.ibm.com> wrote:
>
>
> On 03/06/2018 01:46 PM, Arnd Bergmann wrote:
>> On Mon, Mar 5, 2018 at 10:30 AM, Christian Borntraeger
>> <borntraeger@de.ibm.com> wrote:
>>> On 01/16/2018 03:18 AM, Deepa Dinamani wrote:
>>>> All the current architecture specific defines for these
>>>> are the same. Refactor these common defines to a common
>>>> header file.
>>>>
>>>> The new common linux/compat_time.h is also useful as it
>>>> will eventually be used to hold all the defines that
>>>> are needed for compat time types that support non y2038
>>>> safe types. New architectures need not have to define these
>>>> new types as they will only use new y2038 safe syscalls.
>>>> This file can be deleted after y2038 when we stop supporting
>>>> non y2038 safe syscalls.
>>>
>>> You are now include a <linux/*.h> from several asm files
>>> (
>>>  arch/arm64/include/asm/stat.h
>>>  arch/s390/include/asm/elf.h
>>>  arch/x86/include/asm/ftrace.h
>>>  arch/x86/include/asm/sys_ia32.h
>>> )
>>> It works, and it is done in many places, but it looks somewhat weird.
>>> Would it make sense to have an asm-generic/compate-time.h instead? Asking for
>>> opinions here.
>>
>> I don't think we have such a rule. If a header file is common to all
>> architectures (i.e. no architecture uses a different implementation),
>> it should be in include/linux rather than include/asm-generic, regardless
>> of whether it can be used by assembler files or not.
>>
>>>> --- a/drivers/s390/net/qeth_core_main.c
>>>> +++ b/drivers/s390/net/qeth_core_main.c
>>>> @@ -32,7 +32,7 @@
>>>>  #include <asm/chpid.h>
>>>>  #include <asm/io.h>
>>>>  #include <asm/sysinfo.h>
>>>> -#include <asm/compat.h>
>>>> +#include <linux/compat.h>
>>>>  #include <asm/diag.h>
>>>>  #include <asm/cio.h>
>>>>  #include <asm/ccwdev.h>
>>>
>>> Can you move that into the other includes (where all the other <linux/*> includes are.
>>
>> Good catch, this is definitely a rule we have ;-)
>
> FWIW, this was also broken for
> arch/x86/include/asm/sys_ia32.h

The reason that this was done this way is because of the sed script
mentioned in the commit text.
I was trying to make minimal change apart from the script so that we
don't have other changes like moving the lines to keep the patch
simpler.
I will fix this by hand since this is preferred.
I will post an update.

-Deepa

From - Thu Nov 08 21:41:02 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC PATCH 6/6] arch: add untagged_addr definition for other
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Date: Fri, 9 Mar 2018 15:11:27 +0100
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Cc: "open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
 Linux-sh list <linux-sh@vger.kernel.org>, Lee Smith <Lee.Smith@arm.com>,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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To: Andrey Konovalov <andreyknvl@google.com>
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On Fri, Mar 9, 2018 at 3:02 PM, Andrey Konovalov <andreyknvl@google.com> wrote:
> To allow arm64 syscalls accept tagged pointers from userspace, we must
> untag them when they are passed to the kernel. Since untagging is done in
> generic parts of the kernel (like the mm subsystem), the untagged_addr
> macro should be defined for all architectures.
>
> Define it as a noop for all other architectures besides arm64.
>
> Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
> ---
>  arch/alpha/include/asm/uaccess.h      | 2 ++
>  arch/arc/include/asm/uaccess.h        | 1 +
>  arch/arm/include/asm/uaccess.h        | 2 ++
>  arch/blackfin/include/asm/uaccess.h   | 2 ++
>  arch/c6x/include/asm/uaccess.h        | 2 ++
>  arch/cris/include/asm/uaccess.h       | 2 ++
>  arch/frv/include/asm/uaccess.h        | 2 ++
>  arch/ia64/include/asm/uaccess.h       | 2 ++
>  arch/m32r/include/asm/uaccess.h       | 2 ++
>  arch/m68k/include/asm/uaccess.h       | 2 ++
>  arch/metag/include/asm/uaccess.h      | 2 ++
>  arch/microblaze/include/asm/uaccess.h | 2 ++
>  arch/mips/include/asm/uaccess.h       | 2 ++
>  arch/mn10300/include/asm/uaccess.h    | 2 ++
>  arch/nios2/include/asm/uaccess.h      | 2 ++
>  arch/openrisc/include/asm/uaccess.h   | 2 ++
>  arch/parisc/include/asm/uaccess.h     | 2 ++
>  arch/powerpc/include/asm/uaccess.h    | 2 ++
>  arch/riscv/include/asm/uaccess.h      | 2 ++
>  arch/score/include/asm/uaccess.h      | 2 ++
>  arch/sh/include/asm/uaccess.h         | 2 ++
>  arch/sparc/include/asm/uaccess.h      | 2 ++
>  arch/tile/include/asm/uaccess.h       | 2 ++
>  arch/x86/include/asm/uaccess.h        | 2 ++
>  arch/xtensa/include/asm/uaccess.h     | 2 ++
>  include/asm-generic/uaccess.h         | 2 ++
>  26 files changed, 51 insertions(+)

I have patches to remove the blackfin, cris, frv, m32r, metag, mn10300,
score, tile and unicore32 architectures from the kernel, these should be
part of linux-next in the next few days. It's not a big issue, but if you keep
patching them, this will cause a merge conflict.

It might be easier to drop them from your patch as well.

    Arnd

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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC PATCH 6/6] arch: add untagged_addr definition for other
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Date: Fri, 9 Mar 2018 16:47:23 +0100
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On Fri, Mar 9, 2018 at 3:16 PM, Robin Murphy <robin.murphy@arm.com> wrote:
> On 09/03/18 14:02, Andrey Konovalov wrote:
>>
>> To allow arm64 syscalls accept tagged pointers from userspace, we must
>> untag them when they are passed to the kernel. Since untagging is done in
>> generic parts of the kernel (like the mm subsystem), the untagged_addr
>> macro should be defined for all architectures.
>
>
> Would it not suffice to have an "#ifndef untagged_addr..." fallback in
> linux/uaccess.h?
>

Hi Robin!

This approach is much better, I'll try it. This will also solve the
merge issues that Arnd mentioned.

Thanks!

From - Thu Nov 08 21:41:02 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC PATCH 0/6] arm64: untag user pointers passed to the kernel
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 Lee Smith <Lee.Smith@arm.com>,
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To: Robin Murphy <robin.murphy@arm.com>
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On Fri, Mar 9, 2018 at 3:15 PM, Robin Murphy <robin.murphy@arm.com> wrote:
> Hi Andrey,
>
> On 09/03/18 14:01, Andrey Konovalov wrote:
>>
>> arm64 has a feature called Top Byte Ignore, which allows to embed pointer
>> tags into the top byte of each pointer. Userspace programs (such as
>> HWASan, a memory debugging tool [1]) might use this feature and pass
>> tagged user pointers to the kernel through syscalls or other interfaces.
>
>
> If you propose changing the ABI, then
> Documentation/arm64/tagged-pointers.txt needs to reflect the new one, since
> passing nonzero tags via syscalls is currently explicitly forbidden.
>
> Robin.

Hi Robin!

I will include changes to Documentation/arm64/tagged-pointers.txt in
the next version.

Thanks!

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Subject: [PATCH v4 00/10] posix_clocks: Prepare syscalls for 64 bit time_t
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The series is a preparation series for individual architectures
to use 64 bit time_t syscalls in compat and 32 bit emulation modes.

This is a follow up to the series Arnd Bergmann posted:
https://sourceware.org/ml/libc-alpha/2015-05/msg00070.html [1]

Thomas, Arnd, this seems ready to be merged now.
Can you help get this merged?

Big picture is as per the lwn article:
https://lwn.net/Articles/643234/ [2]

The series is directed at converting posix clock syscalls:
clock_gettime, clock_settime, clock_getres and clock_nanosleep
to use a new data structure __kernel_timespec at syscall boundaries.
__kernel_timespec maintains 64 bit time_t across all execution modes.

vdso will be handled as part of each architecture when they enable
support for 64 bit time_t.

The compat syscalls are repurposed to provide backward compatibility
by using them as native syscalls as well for 32 bit architectures.
They will continue to use timespec at syscall boundaries.

CONFIG_64_BIT_TIME controls whether the syscalls use __kernel_timespec
or timespec at syscall boundaries.

The series does the following:
1. Enable compat syscalls on 32 bit architectures.
2. Add a new __kernel_timespec type to be used as the data structure
   for all the new syscalls.
3. Add new config CONFIG_64BIT_TIME(intead of the CONFIG_COMPAT_TIME in
   [1] and [2] to switch to new definition of __kernel_timespec. It is
   the same as struct timespec otherwise.
4. Add new CONFIG_32BIT_TIME to conditionally compile compat syscalls.

* Changes since v3:
 * Updated include file ordering
* Changes since v2:
 * Dropped the ARCH_HAS_64BIT_TIME config.
 * Fixed zeroing out of higher order bits of tv_nsec for real.
 * Addressed minor review comments from v1.
* Changes since v1:
 * Introduce CONFIG_32BIT_TIME
 * Fixed zeroing out of higher order bits of tv_nsec
 * Included Arnd's changes to fix up use of compat headers

I decided against using LEGACY_TIME_SYSCALLS to conditionally compile
legacy time syscalls such as sys_nanosleep because this will need to
enclose compat_sys_nanosleep as well. So, defining it as 

config LEGACY_TIME_SYSCALLS
     def_bool 64BIT || !64BIT_TIME

will not include compat_sys_nanosleep. We will instead need a new config to
exclusively mark legacy syscalls.

Deepa Dinamani (10):
  compat: Make compat helpers independent of CONFIG_COMPAT
  include: Move compat_timespec/ timeval to compat_time.h
  compat: enable compat_get/put_timespec64 always
  arch: introduce CONFIG_64BIT_TIME
  arch: Introduce CONFIG_COMPAT_32BIT_TIME
  posix-clocks: Make compat syscalls depend on CONFIG_COMPAT_32BIT_TIME
  include: Add new y2038 safe __kernel_timespec
  fix get_timespec64() for y2038 safe compat interfaces
  change time types to new y2038 safe __kernel_* types
  nanosleep: change time types to safe __kernel_* types

 arch/Kconfig                           | 15 +++++++++
 arch/arm64/include/asm/compat.h        | 11 -------
 arch/arm64/include/asm/stat.h          |  1 +
 arch/arm64/kernel/hw_breakpoint.c      |  1 -
 arch/arm64/kernel/perf_regs.c          |  2 +-
 arch/arm64/kernel/process.c            |  1 -
 arch/mips/include/asm/compat.h         | 11 -------
 arch/mips/kernel/signal32.c            |  2 +-
 arch/parisc/include/asm/compat.h       | 11 -------
 arch/powerpc/include/asm/compat.h      | 11 -------
 arch/powerpc/kernel/asm-offsets.c      |  2 +-
 arch/powerpc/oprofile/backtrace.c      |  2 +-
 arch/s390/hypfs/hypfs_sprp.c           |  1 -
 arch/s390/include/asm/compat.h         | 11 -------
 arch/s390/include/asm/elf.h            |  4 +--
 arch/s390/kvm/priv.c                   |  1 -
 arch/s390/pci/pci_clp.c                |  1 -
 arch/sparc/include/asm/compat.h        | 11 -------
 arch/tile/include/asm/compat.h         | 11 -------
 arch/x86/events/core.c                 |  2 +-
 arch/x86/include/asm/compat.h          | 11 -------
 arch/x86/include/asm/ftrace.h          |  2 +-
 arch/x86/include/asm/sys_ia32.h        |  2 +-
 arch/x86/kernel/sys_x86_64.c           |  2 +-
 drivers/s390/block/dasd_ioctl.c        |  1 -
 drivers/s390/char/fs3270.c             |  1 -
 drivers/s390/char/sclp_ctl.c           |  1 -
 drivers/s390/char/vmcp.c               |  1 -
 drivers/s390/cio/chsc_sch.c            |  1 -
 drivers/s390/net/qeth_core_main.c      |  2 +-
 include/linux/compat.h                 | 11 ++++---
 include/linux/compat_time.h            | 23 ++++++++++++++
 include/linux/restart_block.h          |  7 ++--
 include/linux/syscalls.h               | 12 +++----
 include/linux/time.h                   |  4 +--
 include/linux/time64.h                 | 10 +++++-
 include/uapi/asm-generic/posix_types.h |  1 +
 include/uapi/linux/time.h              |  7 ++++
 kernel/compat.c                        | 52 +++++-------------------------
 kernel/time/hrtimer.c                  | 10 ++++--
 kernel/time/posix-stubs.c              | 12 ++++---
 kernel/time/posix-timers.c             | 24 ++++++++++----
 kernel/time/time.c                     | 58 +++++++++++++++++++++++++++++++---
 43 files changed, 177 insertions(+), 190 deletions(-)
 create mode 100644 include/linux/compat_time.h


base-commit: 61530b14b059d4838dcc2186e9de9d57e195ce55
-- 
2.14.1

Cc: acme@kernel.org
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Subject: [PATCH v4 02/10] include: Move compat_timespec/ timeval to compat_time.h
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Xref: news.gmane.org gmane.linux.kernel:2711233 gmane.linux.kernel.year-2038:2530 gmane.linux.ports.mips.general:63993 gmane.linux.ports.parisc:28315 gmane.linux.ports.ppc64.devel:154290 gmane.linux.oprofile:13163 gmane.linux.ports.sparc:27408
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2711233>

All the current architecture specific defines for these
are the same. Refactor these common defines to a common
header file.

The new common linux/compat_time.h is also useful as it
will eventually be used to hold all the defines that
are needed for compat time types that support non y2038
safe types. New architectures need not have to define these
new types as they will only use new y2038 safe syscalls.
This file can be deleted after y2038 when we stop supporting
non y2038 safe syscalls.

The patch also requires an operation similar to:

git grep "asm/compat\.h" | cut -d ":" -f 1 |  xargs -n 1 sed -i -e "s%asm/compat.h%linux/compat.h%g"

Cc: acme@kernel.org
Cc: benh@kernel.crashing.org
Cc: borntraeger@de.ibm.com
Cc: catalin.marinas@arm.com
Cc: cmetcalf@mellanox.com
Cc: cohuck@redhat.com
Cc: davem@davemloft.net
Cc: deller@gmx.de
Cc: devel@driverdev.osuosl.org
Cc: gerald.schaefer@de.ibm.com
Cc: gregkh@linuxfoundation.org
Cc: heiko.carstens@de.ibm.com
Cc: hoeppner@linux.vnet.ibm.com
Cc: hpa@zytor.com
Cc: jejb@parisc-linux.org
Cc: jwi@linux.vnet.ibm.com
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: mark.rutland@arm.com
Cc: mingo@redhat.com
Cc: mpe@ellerman.id.au
Cc: oberpar@linux.vnet.ibm.com
Cc: oprofile-list@lists.sf.net
Cc: paulus@samba.org
Cc: peterz@infradead.org
Cc: ralf@linux-mips.org
Cc: rostedt@goodmis.org
Cc: rric@kernel.org
Cc: schwidefsky@de.ibm.com
Cc: sebott@linux.vnet.ibm.com
Cc: sparclinux@vger.kernel.org
Cc: sth@linux.vnet.ibm.com
Cc: ubraun@linux.vnet.ibm.com
Cc: will.deacon@arm.com
Cc: x86@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: James Hogan <jhogan@kernel.org>
Acked-by: Helge Deller <deller@gmx.de>
---
 arch/arm64/include/asm/compat.h   | 11 -----------
 arch/arm64/include/asm/stat.h     |  1 +
 arch/arm64/kernel/hw_breakpoint.c |  1 -
 arch/arm64/kernel/perf_regs.c     |  2 +-
 arch/arm64/kernel/process.c       |  1 -
 arch/mips/include/asm/compat.h    | 11 -----------
 arch/mips/kernel/signal32.c       |  2 +-
 arch/parisc/include/asm/compat.h  | 11 -----------
 arch/powerpc/include/asm/compat.h | 11 -----------
 arch/powerpc/kernel/asm-offsets.c |  2 +-
 arch/powerpc/oprofile/backtrace.c |  2 +-
 arch/s390/hypfs/hypfs_sprp.c      |  1 -
 arch/s390/include/asm/compat.h    | 11 -----------
 arch/s390/include/asm/elf.h       |  4 ++--
 arch/s390/kvm/priv.c              |  1 -
 arch/s390/pci/pci_clp.c           |  1 -
 arch/sparc/include/asm/compat.h   | 11 -----------
 arch/tile/include/asm/compat.h    | 11 -----------
 arch/x86/events/core.c            |  2 +-
 arch/x86/include/asm/compat.h     | 11 -----------
 arch/x86/include/asm/ftrace.h     |  2 +-
 arch/x86/include/asm/sys_ia32.h   |  2 +-
 arch/x86/kernel/sys_x86_64.c      |  2 +-
 drivers/s390/block/dasd_ioctl.c   |  1 -
 drivers/s390/char/fs3270.c        |  1 -
 drivers/s390/char/sclp_ctl.c      |  1 -
 drivers/s390/char/vmcp.c          |  1 -
 drivers/s390/cio/chsc_sch.c       |  1 -
 drivers/s390/net/qeth_core_main.c |  2 +-
 include/linux/compat.h            |  1 +
 include/linux/compat_time.h       | 19 +++++++++++++++++++
 31 files changed, 32 insertions(+), 109 deletions(-)
 create mode 100644 include/linux/compat_time.h

diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index c00c62e1a4a3..0030f79808b3 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -34,7 +34,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -66,16 +65,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 #ifdef __AARCH64EB__
 	short		st_dev;
diff --git a/arch/arm64/include/asm/stat.h b/arch/arm64/include/asm/stat.h
index 15e35598ac40..eab738019707 100644
--- a/arch/arm64/include/asm/stat.h
+++ b/arch/arm64/include/asm/stat.h
@@ -20,6 +20,7 @@
 
 #ifdef CONFIG_COMPAT
 
+#include <linux/compat_time.h>
 #include <asm/compat.h>
 
 /*
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index 74bb56f656ef..413dbe530da8 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -30,7 +30,6 @@
 #include <linux/smp.h>
 #include <linux/uaccess.h>
 
-#include <asm/compat.h>
 #include <asm/current.h>
 #include <asm/debug-monitors.h>
 #include <asm/hw_breakpoint.h>
diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c
index 1d091d048d04..0bbac612146e 100644
--- a/arch/arm64/kernel/perf_regs.c
+++ b/arch/arm64/kernel/perf_regs.c
@@ -1,11 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0
+#include <linux/compat.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/perf_event.h>
 #include <linux/bug.h>
 #include <linux/sched/task_stack.h>
 
-#include <asm/compat.h>
 #include <asm/perf_regs.h>
 #include <asm/ptrace.h>
 
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index c0da6efe5465..a725e81d0063 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -51,7 +51,6 @@
 #include <linux/thread_info.h>
 
 #include <asm/alternative.h>
-#include <asm/compat.h>
 #include <asm/cacheflush.h>
 #include <asm/exec.h>
 #include <asm/fpsimd.h>
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 9a0fa66b81ac..3e548ee99a2f 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -14,7 +14,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_suseconds_t;
 
@@ -46,16 +45,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	s32		st_pad1[3];
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index c4db910a8794..b5d9e1784aff 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -8,13 +8,13 @@
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  * Copyright (C) 2016, Imagination Technologies Ltd.
  */
+#include <linux/compat.h>
 #include <linux/compiler.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>
 #include <linux/syscalls.h>
 
-#include <asm/compat.h>
 #include <asm/compat-signal.h>
 #include <linux/uaccess.h>
 #include <asm/unistd.h>
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index c22db5323244..6f256e7b95e3 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -13,7 +13,6 @@
 
 typedef u32	compat_size_t;
 typedef s32	compat_ssize_t;
-typedef s32	compat_time_t;
 typedef s32	compat_clock_t;
 typedef s32	compat_pid_t;
 typedef u32	__compat_uid_t;
@@ -40,16 +39,6 @@ typedef u32	compat_ulong_t;
 typedef u64	compat_u64;
 typedef u32	compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t		tv_sec;
-	s32			tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t		tv_sec;
-	s32			tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t		st_dev;	/* dev_t is 32 bits on parisc */
 	compat_ino_t		st_ino;	/* 32 bits */
diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
index 62168e1158f1..b4773c81f7d5 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -17,7 +17,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u32		__compat_uid_t;
@@ -45,16 +44,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	compat_ino_t	st_ino;
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index ea5eb91b836e..4a314620344f 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -13,6 +13,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 
+#include <linux/compat.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
@@ -42,7 +43,6 @@
 #include <asm/paca.h>
 #include <asm/lppaca.h>
 #include <asm/cache.h>
-#include <asm/compat.h>
 #include <asm/mmu.h>
 #include <asm/hvcall.h>
 #include <asm/xics.h>
diff --git a/arch/powerpc/oprofile/backtrace.c b/arch/powerpc/oprofile/backtrace.c
index ecc66d5f02c9..11ff763c03ad 100644
--- a/arch/powerpc/oprofile/backtrace.c
+++ b/arch/powerpc/oprofile/backtrace.c
@@ -11,7 +11,7 @@
 #include <linux/sched.h>
 #include <asm/processor.h>
 #include <linux/uaccess.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
 #include <asm/oprofile_impl.h>
 
 #define STACK_SP(STACK)		*(STACK)
diff --git a/arch/s390/hypfs/hypfs_sprp.c b/arch/s390/hypfs/hypfs_sprp.c
index ae0ed8dd5f1b..5d85a039391c 100644
--- a/arch/s390/hypfs/hypfs_sprp.c
+++ b/arch/s390/hypfs/hypfs_sprp.c
@@ -13,7 +13,6 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/uaccess.h>
-#include <asm/compat.h>
 #include <asm/diag.h>
 #include <asm/sclp.h>
 #include "hypfs.h"
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 9830fb6b076e..501aaff85304 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -53,7 +53,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -97,16 +96,6 @@ typedef struct {
 	u32 gprs_high[NUM_GPRS];
 } s390_compat_regs_high;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	u16		__pad1;
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 1a61b1b997f2..7d22a474a040 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -125,8 +125,9 @@
  * ELF register definitions..
  */
 
+#include <linux/compat.h>
+
 #include <asm/ptrace.h>
-#include <asm/compat.h>
 #include <asm/syscall.h>
 #include <asm/user.h>
 
@@ -136,7 +137,6 @@ typedef s390_regs elf_gregset_t;
 typedef s390_fp_regs compat_elf_fpregset_t;
 typedef s390_compat_regs compat_elf_gregset_t;
 
-#include <linux/compat.h>
 #include <linux/sched/mm.h>	/* for task_struct */
 #include <asm/mmu_context.h>
 
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index ebfa0442e569..a3bce0e84346 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -26,7 +26,6 @@
 #include <asm/gmap.h>
 #include <asm/io.h>
 #include <asm/ptrace.h>
-#include <asm/compat.h>
 #include <asm/sclp.h>
 #include "gaccess.h"
 #include "kvm-s390.h"
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 93cd0f1ca12b..19b2d2a9b43d 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -19,7 +19,6 @@
 #include <linux/uaccess.h>
 #include <asm/pci_debug.h>
 #include <asm/pci_clp.h>
-#include <asm/compat.h>
 #include <asm/clp.h>
 #include <uapi/asm/clp.h>
 
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index 615283e16f22..844a89739e76 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -11,7 +11,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -39,16 +38,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	compat_ino_t	st_ino;
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index 769ff6ac0bf5..06188e0da2de 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -29,7 +29,6 @@ typedef u32		compat_ulong_t;
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
 typedef s32		compat_off_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef u32		compat_ino_t;
 typedef u32		compat_caddr_t;
@@ -59,16 +58,6 @@ typedef unsigned long compat_elf_greg_t;
 #define COMPAT_ELF_NGREG (sizeof(struct pt_regs) / sizeof(compat_elf_greg_t))
 typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 #define compat_stat stat
 #define compat_statfs statfs
 
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 140d33288e78..6b8961912781 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2391,7 +2391,7 @@ static unsigned long get_segment_base(unsigned int segment)
 
 #ifdef CONFIG_IA32_EMULATION
 
-#include <asm/compat.h>
+#include <linux/compat.h>
 
 static inline int
 perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry_ctx *entry)
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index e1c8dab86670..7cd314b71c51 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -17,7 +17,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -46,16 +45,6 @@ typedef u32		compat_u32;
 typedef u64 __attribute__((aligned(4))) compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	u16		__pad1;
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index 09ad88572746..db25aa15b705 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -49,7 +49,7 @@ int ftrace_int3_handler(struct pt_regs *regs);
 #if !defined(__ASSEMBLY__) && !defined(COMPILE_OFFSETS)
 
 #if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_IA32_EMULATION)
-#include <asm/compat.h>
+#include <linux/compat.h>
 
 /*
  * Because ia32 syscalls do not map to x86_64 syscall numbers
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index 82c34ee25a65..8c4083dcd901 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -12,11 +12,11 @@
 
 #ifdef CONFIG_COMPAT
 
+#include <linux/compat.h>
 #include <linux/compiler.h>
 #include <linux/linkage.h>
 #include <linux/types.h>
 #include <linux/signal.h>
-#include <asm/compat.h>
 #include <asm/ia32.h>
 
 /* ia32/sys_ia32.c */
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 676774b9bb8d..6cba5755958c 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
+#include <linux/compat.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
@@ -19,7 +20,6 @@
 #include <linux/elf.h>
 
 #include <asm/elf.h>
-#include <asm/compat.h>
 #include <asm/ia32.h>
 #include <asm/syscalls.h>
 #include <asm/mpx.h>
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 7bdc6aaa0ba3..2016e0ed5865 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -18,7 +18,6 @@
 #include <linux/fs.h>
 #include <linux/blkpg.h>
 #include <linux/slab.h>
-#include <asm/compat.h>
 #include <asm/ccwdev.h>
 #include <asm/schid.h>
 #include <asm/cmb.h>
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 61822480a2a0..16a4e8528bbc 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -19,7 +19,6 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 
-#include <asm/compat.h>
 #include <asm/ccwdev.h>
 #include <asm/cio.h>
 #include <asm/ebcdic.h>
diff --git a/drivers/s390/char/sclp_ctl.c b/drivers/s390/char/sclp_ctl.c
index a78cea0c3a09..248b5db3eaa8 100644
--- a/drivers/s390/char/sclp_ctl.c
+++ b/drivers/s390/char/sclp_ctl.c
@@ -14,7 +14,6 @@
 #include <linux/init.h>
 #include <linux/ioctl.h>
 #include <linux/fs.h>
-#include <asm/compat.h>
 #include <asm/sclp_ctl.h>
 #include <asm/sclp.h>
 
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index 17e411c57576..948ce82a7725 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -23,7 +23,6 @@
 #include <linux/mutex.h>
 #include <linux/cma.h>
 #include <linux/mm.h>
-#include <asm/compat.h>
 #include <asm/cpcmd.h>
 #include <asm/debug.h>
 #include <asm/vmcp.h>
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 0015729d917d..8d9f36625ba5 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -16,7 +16,6 @@
 #include <linux/miscdevice.h>
 #include <linux/kernel_stat.h>
 
-#include <asm/compat.h>
 #include <asm/cio.h>
 #include <asm/chsc.h>
 #include <asm/isc.h>
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index c8b308cfabf1..d3529ef6e0f7 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -10,6 +10,7 @@
 #define KMSG_COMPONENT "qeth"
 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
 
+#include <linux/compat.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/string.h>
@@ -32,7 +33,6 @@
 #include <asm/chpid.h>
 #include <asm/io.h>
 #include <asm/sysinfo.h>
-#include <asm/compat.h>
 #include <asm/diag.h>
 #include <asm/cio.h>
 #include <asm/ccwdev.h>
diff --git a/include/linux/compat.h b/include/linux/compat.h
index bdf1908a392e..0eb4a3a8f62e 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -7,6 +7,7 @@
  */
 
 #include <linux/types.h>
+#include <linux/compat_time.h>
 
 #include <linux/stat.h>
 #include <linux/param.h>	/* for HZ */
diff --git a/include/linux/compat_time.h b/include/linux/compat_time.h
new file mode 100644
index 000000000000..56a54a1e4355
--- /dev/null
+++ b/include/linux/compat_time.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_COMPAT_TIME_H
+#define _LINUX_COMPAT_TIME_H
+
+#include <linux/types.h>
+
+typedef s32		compat_time_t;
+
+struct compat_timespec {
+	compat_time_t	tv_sec;
+	s32		tv_nsec;
+};
+
+struct compat_timeval {
+	compat_time_t	tv_sec;
+	s32		tv_usec;
+};
+
+#endif /* _LINUX_COMPAT_TIME_H */
-- 
2.14.1



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Subject: Re: [PATCH v3 02/10] include: Move compat_timespec/ timeval to
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Date: Mon, 12 Mar 2018 10:59:53 -0700
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To: Christian Borntraeger <borntraeger@de.ibm.com>
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I posted the updated series. I fixed up the order of include files
where I could find some order.
There have been other commits that used scripts to do such
replacements and have already stomped on the order.
For example:

commit 7c0f6ba682b9c7632072ffbedf8d328c8f3c42ba
Author: Linus Torvalds <torvalds@linux-foundation.org>
Replace <asm/uaccess.h> with <linux/uaccess.h> globally

-Deepa


On Tue, Mar 6, 2018 at 2:58 PM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
> On Tue, Mar 6, 2018 at 4:48 AM, Christian Borntraeger
> <borntraeger@de.ibm.com> wrote:
>>
>>
>> On 03/06/2018 01:46 PM, Arnd Bergmann wrote:
>>> On Mon, Mar 5, 2018 at 10:30 AM, Christian Borntraeger
>>> <borntraeger@de.ibm.com> wrote:
>>>> On 01/16/2018 03:18 AM, Deepa Dinamani wrote:
>>>>> All the current architecture specific defines for these
>>>>> are the same. Refactor these common defines to a common
>>>>> header file.
>>>>>
>>>>> The new common linux/compat_time.h is also useful as it
>>>>> will eventually be used to hold all the defines that
>>>>> are needed for compat time types that support non y2038
>>>>> safe types. New architectures need not have to define these
>>>>> new types as they will only use new y2038 safe syscalls.
>>>>> This file can be deleted after y2038 when we stop supporting
>>>>> non y2038 safe syscalls.
>>>>
>>>> You are now include a <linux/*.h> from several asm files
>>>> (
>>>>  arch/arm64/include/asm/stat.h
>>>>  arch/s390/include/asm/elf.h
>>>>  arch/x86/include/asm/ftrace.h
>>>>  arch/x86/include/asm/sys_ia32.h
>>>> )
>>>> It works, and it is done in many places, but it looks somewhat weird.
>>>> Would it make sense to have an asm-generic/compate-time.h instead? Asking for
>>>> opinions here.
>>>
>>> I don't think we have such a rule. If a header file is common to all
>>> architectures (i.e. no architecture uses a different implementation),
>>> it should be in include/linux rather than include/asm-generic, regardless
>>> of whether it can be used by assembler files or not.
>>>
>>>>> --- a/drivers/s390/net/qeth_core_main.c
>>>>> +++ b/drivers/s390/net/qeth_core_main.c
>>>>> @@ -32,7 +32,7 @@
>>>>>  #include <asm/chpid.h>
>>>>>  #include <asm/io.h>
>>>>>  #include <asm/sysinfo.h>
>>>>> -#include <asm/compat.h>
>>>>> +#include <linux/compat.h>
>>>>>  #include <asm/diag.h>
>>>>>  #include <asm/cio.h>
>>>>>  #include <asm/ccwdev.h>
>>>>
>>>> Can you move that into the other includes (where all the other <linux/*> includes are.
>>>
>>> Good catch, this is definitely a rule we have ;-)
>>
>> FWIW, this was also broken for
>> arch/x86/include/asm/sys_ia32.h
>
> The reason that this was done this way is because of the sed script
> mentioned in the commit text.
> I was trying to make minimal change apart from the script so that we
> don't have other changes like moving the lines to keep the patch
> simpler.
> I will fix this by hand since this is preferred.
> I will post an update.
>
> -Deepa

From - Thu Nov 08 21:41:02 2018
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Subject: Re: [PATCH v4 02/10] include: Move compat_timespec/ timeval to
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Date: Tue, 13 Mar 2018 23:22:08 +0800
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To: Deepa Dinamani <deepa.kernel@gmail.com>
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Hi Deepa,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on ]

url:    https://github.com/0day-ci/linux/commits/Deepa-Dinamani/posix_clocks-Prepare-syscalls-for-64-bit-time_t-conversion/20180313-203305
base:    
config: arm64-allnoconfig (attached as .config)
compiler: aarch64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm64 

All errors (new ones prefixed by >>):

   arch/arm64/kernel/process.c: In function 'copy_thread':
>> arch/arm64/kernel/process.c:342:8: error: implicit declaration of function 'is_compat_thread'; did you mean 'is_compat_task'? [-Werror=implicit-function-declaration]
       if (is_compat_thread(task_thread_info(p)))
           ^~~~~~~~~~~~~~~~
           is_compat_task
   cc1: some warnings being treated as errors

vim +342 arch/arm64/kernel/process.c

b3901d54d Catalin Marinas  2012-03-05  307  
b3901d54d Catalin Marinas  2012-03-05  308  int copy_thread(unsigned long clone_flags, unsigned long stack_start,
afa86fc42 Al Viro          2012-10-22  309  		unsigned long stk_sz, struct task_struct *p)
b3901d54d Catalin Marinas  2012-03-05  310  {
b3901d54d Catalin Marinas  2012-03-05  311  	struct pt_regs *childregs = task_pt_regs(p);
b3901d54d Catalin Marinas  2012-03-05  312  
c34501d21 Catalin Marinas  2012-10-05  313  	memset(&p->thread.cpu_context, 0, sizeof(struct cpu_context));
c34501d21 Catalin Marinas  2012-10-05  314  
bc0ee4760 Dave Martin      2017-10-31  315  	/*
bc0ee4760 Dave Martin      2017-10-31  316  	 * Unalias p->thread.sve_state (if any) from the parent task
bc0ee4760 Dave Martin      2017-10-31  317  	 * and disable discard SVE state for p:
bc0ee4760 Dave Martin      2017-10-31  318  	 */
bc0ee4760 Dave Martin      2017-10-31  319  	clear_tsk_thread_flag(p, TIF_SVE);
bc0ee4760 Dave Martin      2017-10-31  320  	p->thread.sve_state = NULL;
bc0ee4760 Dave Martin      2017-10-31  321  
071b6d4a5 Dave Martin      2017-12-05  322  	/*
071b6d4a5 Dave Martin      2017-12-05  323  	 * In case p was allocated the same task_struct pointer as some
071b6d4a5 Dave Martin      2017-12-05  324  	 * other recently-exited task, make sure p is disassociated from
071b6d4a5 Dave Martin      2017-12-05  325  	 * any cpu that may have run that now-exited task recently.
071b6d4a5 Dave Martin      2017-12-05  326  	 * Otherwise we could erroneously skip reloading the FPSIMD
071b6d4a5 Dave Martin      2017-12-05  327  	 * registers for p.
071b6d4a5 Dave Martin      2017-12-05  328  	 */
071b6d4a5 Dave Martin      2017-12-05  329  	fpsimd_flush_task_state(p);
071b6d4a5 Dave Martin      2017-12-05  330  
9ac080021 Al Viro          2012-10-21  331  	if (likely(!(p->flags & PF_KTHREAD))) {
9ac080021 Al Viro          2012-10-21  332  		*childregs = *current_pt_regs();
b3901d54d Catalin Marinas  2012-03-05  333  		childregs->regs[0] = 0;
d00a3810c Will Deacon      2015-05-27  334  
b3901d54d Catalin Marinas  2012-03-05  335  		/*
b3901d54d Catalin Marinas  2012-03-05  336  		 * Read the current TLS pointer from tpidr_el0 as it may be
b3901d54d Catalin Marinas  2012-03-05  337  		 * out-of-sync with the saved value.
b3901d54d Catalin Marinas  2012-03-05  338  		 */
adf758999 Mark Rutland     2016-09-08  339  		*task_user_tls(p) = read_sysreg(tpidr_el0);
d00a3810c Will Deacon      2015-05-27  340  
e0fd18ce1 Al Viro          2012-10-18  341  		if (stack_start) {
d00a3810c Will Deacon      2015-05-27 @342  			if (is_compat_thread(task_thread_info(p)))
d00a3810c Will Deacon      2015-05-27  343  				childregs->compat_sp = stack_start;
d00a3810c Will Deacon      2015-05-27  344  			else
b3901d54d Catalin Marinas  2012-03-05  345  				childregs->sp = stack_start;
b3901d54d Catalin Marinas  2012-03-05  346  		}
d00a3810c Will Deacon      2015-05-27  347  
c34501d21 Catalin Marinas  2012-10-05  348  		/*
c34501d21 Catalin Marinas  2012-10-05  349  		 * If a TLS pointer was passed to clone (4th argument), use it
c34501d21 Catalin Marinas  2012-10-05  350  		 * for the new thread.
c34501d21 Catalin Marinas  2012-10-05  351  		 */
b3901d54d Catalin Marinas  2012-03-05  352  		if (clone_flags & CLONE_SETTLS)
d00a3810c Will Deacon      2015-05-27  353  			p->thread.tp_value = childregs->regs[3];
c34501d21 Catalin Marinas  2012-10-05  354  	} else {
c34501d21 Catalin Marinas  2012-10-05  355  		memset(childregs, 0, sizeof(struct pt_regs));
c34501d21 Catalin Marinas  2012-10-05  356  		childregs->pstate = PSR_MODE_EL1h;
57f4959ba James Morse      2016-02-05  357  		if (IS_ENABLED(CONFIG_ARM64_UAO) &&
a4023f682 Suzuki K Poulose 2016-11-08  358  		    cpus_have_const_cap(ARM64_HAS_UAO))
57f4959ba James Morse      2016-02-05  359  			childregs->pstate |= PSR_UAO_BIT;
c34501d21 Catalin Marinas  2012-10-05  360  		p->thread.cpu_context.x19 = stack_start;
c34501d21 Catalin Marinas  2012-10-05  361  		p->thread.cpu_context.x20 = stk_sz;
c34501d21 Catalin Marinas  2012-10-05  362  	}
c34501d21 Catalin Marinas  2012-10-05  363  	p->thread.cpu_context.pc = (unsigned long)ret_from_fork;
c34501d21 Catalin Marinas  2012-10-05  364  	p->thread.cpu_context.sp = (unsigned long)childregs;
b3901d54d Catalin Marinas  2012-03-05  365  
b3901d54d Catalin Marinas  2012-03-05  366  	ptrace_hw_copy_thread(p);
b3901d54d Catalin Marinas  2012-03-05  367  
b3901d54d Catalin Marinas  2012-03-05  368  	return 0;
b3901d54d Catalin Marinas  2012-03-05  369  }
b3901d54d Catalin Marinas  2012-03-05  370  

:::::: The code at line 342 was first introduced by commit
:::::: d00a3810c16207d2541b7796a73cca5a24ea3742 arm64: context-switch user tls register tpidr_el0 for compat tasks

:::::: TO: Will Deacon <will.deacon@arm.com>
:::::: CC: Catalin Marinas <catalin.marinas@arm.com>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Subject: Re: [PATCH v4 02/10] include: Move compat_timespec/ timeval to
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Hi Deepa,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on ]

url:    https://github.com/0day-ci/linux/commits/Deepa-Dinamani/posix_clocks-Prepare-syscalls-for-64-bit-time_t-conversion/20180313-203305
base:    
config: powerpc-iss476-smp_defconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   arch/powerpc/oprofile/backtrace.c: In function 'user_getsp32':
>> arch/powerpc/oprofile/backtrace.c:31:19: error: implicit declaration of function 'compat_ptr'; did you mean 'complete'? [-Werror=implicit-function-declaration]
     void __user *p = compat_ptr(sp);
                      ^~~~~~~~~~
                      complete
>> arch/powerpc/oprofile/backtrace.c:31:19: error: initialization makes pointer from integer without a cast [-Werror=int-conversion]
   cc1: all warnings being treated as errors

vim +31 arch/powerpc/oprofile/backtrace.c

6c6bd754 Brian Rogan 2006-03-27  27  
6c6bd754 Brian Rogan 2006-03-27  28  static unsigned int user_getsp32(unsigned int sp, int is_first)
6c6bd754 Brian Rogan 2006-03-27  29  {
6c6bd754 Brian Rogan 2006-03-27  30  	unsigned int stack_frame[2];
62034f03 Al Viro     2006-09-23 @31  	void __user *p = compat_ptr(sp);
6c6bd754 Brian Rogan 2006-03-27  32  
62034f03 Al Viro     2006-09-23  33  	if (!access_ok(VERIFY_READ, p, sizeof(stack_frame)))
6c6bd754 Brian Rogan 2006-03-27  34  		return 0;
6c6bd754 Brian Rogan 2006-03-27  35  
6c6bd754 Brian Rogan 2006-03-27  36  	/*
6c6bd754 Brian Rogan 2006-03-27  37  	 * The most likely reason for this is that we returned -EFAULT,
6c6bd754 Brian Rogan 2006-03-27  38  	 * which means that we've done all that we can do from
6c6bd754 Brian Rogan 2006-03-27  39  	 * interrupt context.
6c6bd754 Brian Rogan 2006-03-27  40  	 */
62034f03 Al Viro     2006-09-23  41  	if (__copy_from_user_inatomic(stack_frame, p, sizeof(stack_frame)))
6c6bd754 Brian Rogan 2006-03-27  42  		return 0;
6c6bd754 Brian Rogan 2006-03-27  43  
6c6bd754 Brian Rogan 2006-03-27  44  	if (!is_first)
6c6bd754 Brian Rogan 2006-03-27  45  		oprofile_add_trace(STACK_LR32(stack_frame));
6c6bd754 Brian Rogan 2006-03-27  46  
6c6bd754 Brian Rogan 2006-03-27  47  	/*
6c6bd754 Brian Rogan 2006-03-27  48  	 * We do not enforce increasing stack addresses here because
6c6bd754 Brian Rogan 2006-03-27  49  	 * we may transition to a different stack, eg a signal handler.
6c6bd754 Brian Rogan 2006-03-27  50  	 */
6c6bd754 Brian Rogan 2006-03-27  51  	return STACK_SP(stack_frame);
6c6bd754 Brian Rogan 2006-03-27  52  }
6c6bd754 Brian Rogan 2006-03-27  53  

:::::: The code at line 31 was first introduced by commit
:::::: 62034f03380a64c0144b6721f4a2aa55d65346c1 [POWERPC] powerpc oprofile __user annotations

:::::: TO: Al Viro <viro@ftp.linux.org.uk>
:::::: CC: Paul Mackerras <paulus@samba.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Newsgroups: gmane.linux.drivers.driver-project.devel,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.kernel.year-2038,gmane.linux.oprofile,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [Y2038] [PATCH v4 02/10] include: Move compat_timespec/ timeval
 to compat_time.h
Date: Tue, 13 Mar 2018 20:50:31 -0700
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To: kbuild test robot <lkp@intel.com>
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Xref: news.gmane.org gmane.linux.drivers.driver-project.devel:114399 gmane.linux.ports.mips.general:64015 gmane.linux.ports.sparc:27412 gmane.linux.kernel.year-2038:2541 gmane.linux.oprofile:13167 gmane.linux.ports.parisc:28319 gmane.linux.kernel:2713131 gmane.linux.ports.ppc64.devel:154366
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.driver-project.devel/114399>

The file arch/arm64/kernel/process.c needs asm/compat.h also to be
included directly since this is included conditionally from
include/compat.h. This does seem to be typical of arm64 as I was not
completely able to get rid of asm/compat.h includes for arm64 in this
series. My plan is to have separate patches to get rid of asm/compat.h
includes for the architectures that are not straight forward to keep
this series simple.
I will fix this and update the series.

-Deepa


On Tue, Mar 13, 2018 at 8:22 AM, kbuild test robot <lkp@intel.com> wrote:
> Hi Deepa,
>
> Thank you for the patch! Yet something to improve:
>
> [auto build test ERROR on ]
>
> url:    https://github.com/0day-ci/linux/commits/Deepa-Dinamani/posix_clocks-Prepare-syscalls-for-64-bit-time_t-conversion/20180313-203305
> base:
> config: arm64-allnoconfig (attached as .config)
> compiler: aarch64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         make.cross ARCH=arm64
>
> All errors (new ones prefixed by >>):
>
>    arch/arm64/kernel/process.c: In function 'copy_thread':
>>> arch/arm64/kernel/process.c:342:8: error: implicit declaration of function 'is_compat_thread'; did you mean 'is_compat_task'? [-Werror=implicit-function-declaration]
>        if (is_compat_thread(task_thread_info(p)))
>            ^~~~~~~~~~~~~~~~
>            is_compat_task
>    cc1: some warnings being treated as errors
>
> vim +342 arch/arm64/kernel/process.c
>
> b3901d54d Catalin Marinas  2012-03-05  307
> b3901d54d Catalin Marinas  2012-03-05  308  int copy_thread(unsigned long clone_flags, unsigned long stack_start,
> afa86fc42 Al Viro          2012-10-22  309              unsigned long stk_sz, struct task_struct *p)
> b3901d54d Catalin Marinas  2012-03-05  310  {
> b3901d54d Catalin Marinas  2012-03-05  311      struct pt_regs *childregs = task_pt_regs(p);
> b3901d54d Catalin Marinas  2012-03-05  312
> c34501d21 Catalin Marinas  2012-10-05  313      memset(&p->thread.cpu_context, 0, sizeof(struct cpu_context));
> c34501d21 Catalin Marinas  2012-10-05  314
> bc0ee4760 Dave Martin      2017-10-31  315      /*
> bc0ee4760 Dave Martin      2017-10-31  316       * Unalias p->thread.sve_state (if any) from the parent task
> bc0ee4760 Dave Martin      2017-10-31  317       * and disable discard SVE state for p:
> bc0ee4760 Dave Martin      2017-10-31  318       */
> bc0ee4760 Dave Martin      2017-10-31  319      clear_tsk_thread_flag(p, TIF_SVE);
> bc0ee4760 Dave Martin      2017-10-31  320      p->thread.sve_state = NULL;
> bc0ee4760 Dave Martin      2017-10-31  321
> 071b6d4a5 Dave Martin      2017-12-05  322      /*
> 071b6d4a5 Dave Martin      2017-12-05  323       * In case p was allocated the same task_struct pointer as some
> 071b6d4a5 Dave Martin      2017-12-05  324       * other recently-exited task, make sure p is disassociated from
> 071b6d4a5 Dave Martin      2017-12-05  325       * any cpu that may have run that now-exited task recently.
> 071b6d4a5 Dave Martin      2017-12-05  326       * Otherwise we could erroneously skip reloading the FPSIMD
> 071b6d4a5 Dave Martin      2017-12-05  327       * registers for p.
> 071b6d4a5 Dave Martin      2017-12-05  328       */
> 071b6d4a5 Dave Martin      2017-12-05  329      fpsimd_flush_task_state(p);
> 071b6d4a5 Dave Martin      2017-12-05  330
> 9ac080021 Al Viro          2012-10-21  331      if (likely(!(p->flags & PF_KTHREAD))) {
> 9ac080021 Al Viro          2012-10-21  332              *childregs = *current_pt_regs();
> b3901d54d Catalin Marinas  2012-03-05  333              childregs->regs[0] = 0;
> d00a3810c Will Deacon      2015-05-27  334
> b3901d54d Catalin Marinas  2012-03-05  335              /*
> b3901d54d Catalin Marinas  2012-03-05  336               * Read the current TLS pointer from tpidr_el0 as it may be
> b3901d54d Catalin Marinas  2012-03-05  337               * out-of-sync with the saved value.
> b3901d54d Catalin Marinas  2012-03-05  338               */
> adf758999 Mark Rutland     2016-09-08  339              *task_user_tls(p) = read_sysreg(tpidr_el0);
> d00a3810c Will Deacon      2015-05-27  340
> e0fd18ce1 Al Viro          2012-10-18  341              if (stack_start) {
> d00a3810c Will Deacon      2015-05-27 @342                      if (is_compat_thread(task_thread_info(p)))
> d00a3810c Will Deacon      2015-05-27  343                              childregs->compat_sp = stack_start;
> d00a3810c Will Deacon      2015-05-27  344                      else
> b3901d54d Catalin Marinas  2012-03-05  345                              childregs->sp = stack_start;
> b3901d54d Catalin Marinas  2012-03-05  346              }
> d00a3810c Will Deacon      2015-05-27  347
> c34501d21 Catalin Marinas  2012-10-05  348              /*
> c34501d21 Catalin Marinas  2012-10-05  349               * If a TLS pointer was passed to clone (4th argument), use it
> c34501d21 Catalin Marinas  2012-10-05  350               * for the new thread.
> c34501d21 Catalin Marinas  2012-10-05  351               */
> b3901d54d Catalin Marinas  2012-03-05  352              if (clone_flags & CLONE_SETTLS)
> d00a3810c Will Deacon      2015-05-27  353                      p->thread.tp_value = childregs->regs[3];
> c34501d21 Catalin Marinas  2012-10-05  354      } else {
> c34501d21 Catalin Marinas  2012-10-05  355              memset(childregs, 0, sizeof(struct pt_regs));
> c34501d21 Catalin Marinas  2012-10-05  356              childregs->pstate = PSR_MODE_EL1h;
> 57f4959ba James Morse      2016-02-05  357              if (IS_ENABLED(CONFIG_ARM64_UAO) &&
> a4023f682 Suzuki K Poulose 2016-11-08  358                  cpus_have_const_cap(ARM64_HAS_UAO))
> 57f4959ba James Morse      2016-02-05  359                      childregs->pstate |= PSR_UAO_BIT;
> c34501d21 Catalin Marinas  2012-10-05  360              p->thread.cpu_context.x19 = stack_start;
> c34501d21 Catalin Marinas  2012-10-05  361              p->thread.cpu_context.x20 = stk_sz;
> c34501d21 Catalin Marinas  2012-10-05  362      }
> c34501d21 Catalin Marinas  2012-10-05  363      p->thread.cpu_context.pc = (unsigned long)ret_from_fork;
> c34501d21 Catalin Marinas  2012-10-05  364      p->thread.cpu_context.sp = (unsigned long)childregs;
> b3901d54d Catalin Marinas  2012-03-05  365
> b3901d54d Catalin Marinas  2012-03-05  366      ptrace_hw_copy_thread(p);
> b3901d54d Catalin Marinas  2012-03-05  367
> b3901d54d Catalin Marinas  2012-03-05  368      return 0;
> b3901d54d Catalin Marinas  2012-03-05  369  }
> b3901d54d Catalin Marinas  2012-03-05  370
>
> :::::: The code at line 342 was first introduced by commit
> :::::: d00a3810c16207d2541b7796a73cca5a24ea3742 arm64: context-switch user tls register tpidr_el0 for compat tasks
>
> :::::: TO: Will Deacon <will.deacon@arm.com>
> :::::: CC: Catalin Marinas <catalin.marinas@arm.com>
>
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
> _______________________________________________
> Y2038 mailing list
> Y2038@lists.linaro.org
> https://lists.linaro.org/mailman/listinfo/y2038

From - Thu Nov 08 21:41:03 2018
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From: Deepa Dinamani <deepa.kernel@gmail.com>
Newsgroups: gmane.linux.drivers.driver-project.devel,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.kernel.year-2038,gmane.linux.oprofile,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v4 02/10] include: Move compat_timespec/ timeval to
 compat_time.h
Date: Tue, 13 Mar 2018 20:56:19 -0700
Lines: 78
Approved: news@gmane.org
Message-ID: <CABeXuvp617xkFgMDz8WR_=e6tj2d5LDpF56R-iXCOAqM=tdm+A@mail.gmail.com>
References: <20180312175307.11032-3-deepa.kernel@gmail.com>
 <201803132351.1SZJ68nV%fengguang.wu@intel.com>
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Cc: Mark Rutland <mark.rutland@arm.com>,
 "open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
 Peter Zijlstra <peterz@infradead.org>,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Heiko Carstens <heiko.carstens@de.ibm.com>, Paul Mackerras <paulus@samba.org>,
 "H. Peter Anvin" <hpa@zytor.com>, sparclinux <sparclinux@vger.kernel.org>,
 devel@driverdev.osuosl.org, linux-s390 <linux-s390@vger.kernel.org>,
 y2038 Mailman List <y2038@lists.linaro.org>,
 Michael Ellerman <mpe@ellerman.id.au>, Helge Deller <deller@gmx.de>,
 the arch/x86 maintainers <x86@kernel.org>, sebott@linux.vnet.ibm.com,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 Christian Borntraeger <borntraeger@de.ibm.com>, Ingo Molnar <mingo@redhat.com>,
 oprofile-list@lists.sf.net, Catalin Marinas <catalin.marinas@arm.com>,
 Peter Oberparleiter <oberpar@linux.vnet.ibm.com>,
 Robert Richter <rric@kernel.org>,
To: kbuild test robot <lkp@intel.com>
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Xref: news.gmane.org gmane.linux.drivers.driver-project.devel:114400 gmane.linux.ports.mips.general:64016 gmane.linux.ports.sparc:27413 gmane.linux.kernel.year-2038:2542 gmane.linux.oprofile:13168 gmane.linux.ports.parisc:28320 gmane.linux.kernel:2713133 gmane.linux.ports.ppc64.devel:154367
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.driver-project.devel/114400>

This is again a tricky include file ordering when linux/compat.h is
included instead of asm/compat.h. is_compat_task() is unconditionally
defined in linux/compat.h as a macro which conflicts with inline
function define in asm/compat.h for this arch.
As before, I will do the simple thing here and leave the asm/compat.h
to keep this series simple.
I will submit follow up patches to eliminate direct inclusion asm/compat.h.

I will include this also in the update.

-Deepa

On Tue, Mar 13, 2018 at 8:30 AM, kbuild test robot <lkp@intel.com> wrote:
> Hi Deepa,
>
> Thank you for the patch! Yet something to improve:
>
> [auto build test ERROR on ]
>
> url:    https://github.com/0day-ci/linux/commits/Deepa-Dinamani/posix_clocks-Prepare-syscalls-for-64-bit-time_t-conversion/20180313-203305
> base:
> config: powerpc-iss476-smp_defconfig (attached as .config)
> compiler: powerpc-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         make.cross ARCH=powerpc
>
> All errors (new ones prefixed by >>):
>
>    arch/powerpc/oprofile/backtrace.c: In function 'user_getsp32':
>>> arch/powerpc/oprofile/backtrace.c:31:19: error: implicit declaration of function 'compat_ptr'; did you mean 'complete'? [-Werror=implicit-function-declaration]
>      void __user *p = compat_ptr(sp);
>                       ^~~~~~~~~~
>                       complete
>>> arch/powerpc/oprofile/backtrace.c:31:19: error: initialization makes pointer from integer without a cast [-Werror=int-conversion]
>    cc1: all warnings being treated as errors
>
> vim +31 arch/powerpc/oprofile/backtrace.c
>
> 6c6bd754 Brian Rogan 2006-03-27  27
> 6c6bd754 Brian Rogan 2006-03-27  28  static unsigned int user_getsp32(unsigned int sp, int is_first)
> 6c6bd754 Brian Rogan 2006-03-27  29  {
> 6c6bd754 Brian Rogan 2006-03-27  30     unsigned int stack_frame[2];
> 62034f03 Al Viro     2006-09-23 @31     void __user *p = compat_ptr(sp);
> 6c6bd754 Brian Rogan 2006-03-27  32
> 62034f03 Al Viro     2006-09-23  33     if (!access_ok(VERIFY_READ, p, sizeof(stack_frame)))
> 6c6bd754 Brian Rogan 2006-03-27  34             return 0;
> 6c6bd754 Brian Rogan 2006-03-27  35
> 6c6bd754 Brian Rogan 2006-03-27  36     /*
> 6c6bd754 Brian Rogan 2006-03-27  37      * The most likely reason for this is that we returned -EFAULT,
> 6c6bd754 Brian Rogan 2006-03-27  38      * which means that we've done all that we can do from
> 6c6bd754 Brian Rogan 2006-03-27  39      * interrupt context.
> 6c6bd754 Brian Rogan 2006-03-27  40      */
> 62034f03 Al Viro     2006-09-23  41     if (__copy_from_user_inatomic(stack_frame, p, sizeof(stack_frame)))
> 6c6bd754 Brian Rogan 2006-03-27  42             return 0;
> 6c6bd754 Brian Rogan 2006-03-27  43
> 6c6bd754 Brian Rogan 2006-03-27  44     if (!is_first)
> 6c6bd754 Brian Rogan 2006-03-27  45             oprofile_add_trace(STACK_LR32(stack_frame));
> 6c6bd754 Brian Rogan 2006-03-27  46
> 6c6bd754 Brian Rogan 2006-03-27  47     /*
> 6c6bd754 Brian Rogan 2006-03-27  48      * We do not enforce increasing stack addresses here because
> 6c6bd754 Brian Rogan 2006-03-27  49      * we may transition to a different stack, eg a signal handler.
> 6c6bd754 Brian Rogan 2006-03-27  50      */
> 6c6bd754 Brian Rogan 2006-03-27  51     return STACK_SP(stack_frame);
> 6c6bd754 Brian Rogan 2006-03-27  52  }
> 6c6bd754 Brian Rogan 2006-03-27  53
>
> :::::: The code at line 31 was first introduced by commit
> :::::: 62034f03380a64c0144b6721f4a2aa55d65346c1 [POWERPC] powerpc oprofile __user annotations
>
> :::::: TO: Al Viro <viro@ftp.linux.org.uk>
> :::::: CC: Paul Mackerras <paulus@samba.org>
>
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

From - Thu Nov 08 21:41:03 2018
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From: Deepa Dinamani <deepa.kernel@gmail.com>
Newsgroups: gmane.linux.drivers.driver-project.devel,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.kernel.year-2038,gmane.linux.oprofile,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.api,gmane.linux.ports.ppc64.devel
Subject: [PATCH v5 00/10] posix_clocks: Prepare syscalls for 64 bit time_t
 conversion
Date: Tue, 13 Mar 2018 21:03:23 -0700
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Cc: mark.rutland@arm.com, linux-mips@linux-mips.org, peterz@infradead.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.driver-project.devel/114401>

The series is a preparation series for individual architectures
to use 64 bit time_t syscalls in compat and 32 bit emulation modes.

This is a follow up to the series Arnd Bergmann posted:
https://sourceware.org/ml/libc-alpha/2015-05/msg00070.html [1]

Thomas, Arnd, this seems ready to be merged now.
Can you help get this merged?

Big picture is as per the lwn article:
https://lwn.net/Articles/643234/ [2]

The series is directed at converting posix clock syscalls:
clock_gettime, clock_settime, clock_getres and clock_nanosleep
to use a new data structure __kernel_timespec at syscall boundaries.
__kernel_timespec maintains 64 bit time_t across all execution modes.

vdso will be handled as part of each architecture when they enable
support for 64 bit time_t.

The compat syscalls are repurposed to provide backward compatibility
by using them as native syscalls as well for 32 bit architectures.
They will continue to use timespec at syscall boundaries.

CONFIG_64_BIT_TIME controls whether the syscalls use __kernel_timespec
or timespec at syscall boundaries.

The series does the following:
1. Enable compat syscalls on 32 bit architectures.
2. Add a new __kernel_timespec type to be used as the data structure
   for all the new syscalls.
3. Add new config CONFIG_64BIT_TIME(intead of the CONFIG_COMPAT_TIME in
   [1] and [2] to switch to new definition of __kernel_timespec. It is
   the same as struct timespec otherwise.
4. Add new CONFIG_32BIT_TIME to conditionally compile compat syscalls.

* Changes since v4:
 * Fixed up kbuild errors for arm64 and powerpc non compat configs
* Changes since v3:
 * Updated include file ordering
* Changes since v2:
 * Dropped the ARCH_HAS_64BIT_TIME config.
 * Fixed zeroing out of higher order bits of tv_nsec for real.
 * Addressed minor review comments from v1.
* Changes since v1:
 * Introduce CONFIG_32BIT_TIME
 * Fixed zeroing out of higher order bits of tv_nsec
 * Included Arnd's changes to fix up use of compat headers

I decided against using LEGACY_TIME_SYSCALLS to conditionally compile
legacy time syscalls such as sys_nanosleep because this will need to
enclose compat_sys_nanosleep as well. So, defining it as 

config LEGACY_TIME_SYSCALLS
     def_bool 64BIT || !64BIT_TIME

will not include compat_sys_nanosleep. We will instead need a new config to
exclusively mark legacy syscalls.

Deepa Dinamani (10):
  compat: Make compat helpers independent of CONFIG_COMPAT
  include: Move compat_timespec/ timeval to compat_time.h
  compat: enable compat_get/put_timespec64 always
  arch: introduce CONFIG_64BIT_TIME
  arch: Introduce CONFIG_COMPAT_32BIT_TIME
  posix-clocks: Make compat syscalls depend on CONFIG_COMPAT_32BIT_TIME
  include: Add new y2038 safe __kernel_timespec
  fix get_timespec64() for y2038 safe compat interfaces
  change time types to new y2038 safe __kernel_* types
  nanosleep: change time types to safe __kernel_* types

 arch/Kconfig                           | 15 +++++++++
 arch/arm64/include/asm/compat.h        | 11 -------
 arch/arm64/include/asm/stat.h          |  1 +
 arch/arm64/kernel/hw_breakpoint.c      |  1 -
 arch/arm64/kernel/perf_regs.c          |  2 +-
 arch/mips/include/asm/compat.h         | 11 -------
 arch/mips/kernel/signal32.c            |  2 +-
 arch/parisc/include/asm/compat.h       | 11 -------
 arch/powerpc/include/asm/compat.h      | 11 -------
 arch/powerpc/kernel/asm-offsets.c      |  2 +-
 arch/powerpc/oprofile/backtrace.c      |  1 +
 arch/s390/hypfs/hypfs_sprp.c           |  1 -
 arch/s390/include/asm/compat.h         | 11 -------
 arch/s390/include/asm/elf.h            |  4 +--
 arch/s390/kvm/priv.c                   |  1 -
 arch/s390/pci/pci_clp.c                |  1 -
 arch/sparc/include/asm/compat.h        | 11 -------
 arch/tile/include/asm/compat.h         | 11 -------
 arch/x86/events/core.c                 |  2 +-
 arch/x86/include/asm/compat.h          | 11 -------
 arch/x86/include/asm/ftrace.h          |  2 +-
 arch/x86/include/asm/sys_ia32.h        |  2 +-
 arch/x86/kernel/sys_x86_64.c           |  2 +-
 drivers/s390/block/dasd_ioctl.c        |  1 -
 drivers/s390/char/fs3270.c             |  1 -
 drivers/s390/char/sclp_ctl.c           |  1 -
 drivers/s390/char/vmcp.c               |  1 -
 drivers/s390/cio/chsc_sch.c            |  1 -
 drivers/s390/net/qeth_core_main.c      |  2 +-
 include/linux/compat.h                 | 11 ++++---
 include/linux/compat_time.h            | 23 ++++++++++++++
 include/linux/restart_block.h          |  7 ++--
 include/linux/syscalls.h               | 12 +++----
 include/linux/time.h                   |  4 +--
 include/linux/time64.h                 | 10 +++++-
 include/uapi/asm-generic/posix_types.h |  1 +
 include/uapi/linux/time.h              |  7 ++++
 kernel/compat.c                        | 52 +++++-------------------------
 kernel/time/hrtimer.c                  | 10 ++++--
 kernel/time/posix-stubs.c              | 12 ++++---
 kernel/time/posix-timers.c             | 24 ++++++++++----
 kernel/time/time.c                     | 58 +++++++++++++++++++++++++++++++---
 42 files changed, 177 insertions(+), 188 deletions(-)
 create mode 100644 include/linux/compat_time.h


base-commit: 61530b14b059d4838dcc2186e9de9d57e195ce55
-- 
2.14.1

Cc: acme@kernel.org
Cc: benh@kernel.crashing.org
Cc: borntraeger@de.ibm.com
Cc: catalin.marinas@arm.com
Cc: cmetcalf@mellanox.com
Cc: cohuck@redhat.com
Cc: davem@davemloft.net
Cc: deller@gmx.de
Cc: devel@driverdev.osuosl.org
Cc: gerald.schaefer@de.ibm.com
Cc: gregkh@linuxfoundation.org
Cc: heiko.carstens@de.ibm.com
Cc: hoeppner@linux.vnet.ibm.com
Cc: hpa@zytor.com
Cc: jejb@parisc-linux.org
Cc: jwi@linux.vnet.ibm.com
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: mark.rutland@arm.com
Cc: mingo@redhat.com
Cc: mpe@ellerman.id.au
Cc: oberpar@linux.vnet.ibm.com
Cc: oprofile-list@lists.sf.net
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Cc: peterz@infradead.org
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From: Deepa Dinamani <deepa.kernel@gmail.com>
Newsgroups: gmane.linux.drivers.driver-project.devel,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.kernel.year-2038,gmane.linux.oprofile,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH v5 02/10] include: Move compat_timespec/ timeval to
 compat_time.h
Date: Tue, 13 Mar 2018 21:03:25 -0700
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Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.drivers.driver-project.devel:114402 gmane.linux.ports.mips.general:64018 gmane.linux.ports.sparc:27415 gmane.linux.kernel.year-2038:2545 gmane.linux.oprofile:13170 gmane.linux.ports.parisc:28322 gmane.linux.kernel:2713138 gmane.linux.ports.ppc64.devel:154369
Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.driver-project.devel/114402>

All the current architecture specific defines for these
are the same. Refactor these common defines to a common
header file.

The new common linux/compat_time.h is also useful as it
will eventually be used to hold all the defines that
are needed for compat time types that support non y2038
safe types. New architectures need not have to define these
new types as they will only use new y2038 safe syscalls.
This file can be deleted after y2038 when we stop supporting
non y2038 safe syscalls.

The patch also requires an operation similar to:

git grep "asm/compat\.h" | cut -d ":" -f 1 |  xargs -n 1 sed -i -e "s%asm/compat.h%linux/compat.h%g"

Cc: acme@kernel.org
Cc: benh@kernel.crashing.org
Cc: borntraeger@de.ibm.com
Cc: catalin.marinas@arm.com
Cc: cmetcalf@mellanox.com
Cc: cohuck@redhat.com
Cc: davem@davemloft.net
Cc: deller@gmx.de
Cc: devel@driverdev.osuosl.org
Cc: gerald.schaefer@de.ibm.com
Cc: gregkh@linuxfoundation.org
Cc: heiko.carstens@de.ibm.com
Cc: hoeppner@linux.vnet.ibm.com
Cc: hpa@zytor.com
Cc: jejb@parisc-linux.org
Cc: jwi@linux.vnet.ibm.com
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: mark.rutland@arm.com
Cc: mingo@redhat.com
Cc: mpe@ellerman.id.au
Cc: oberpar@linux.vnet.ibm.com
Cc: oprofile-list@lists.sf.net
Cc: paulus@samba.org
Cc: peterz@infradead.org
Cc: ralf@linux-mips.org
Cc: rostedt@goodmis.org
Cc: rric@kernel.org
Cc: schwidefsky@de.ibm.com
Cc: sebott@linux.vnet.ibm.com
Cc: sparclinux@vger.kernel.org
Cc: sth@linux.vnet.ibm.com
Cc: ubraun@linux.vnet.ibm.com
Cc: will.deacon@arm.com
Cc: x86@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: James Hogan <jhogan@kernel.org>
Acked-by: Helge Deller <deller@gmx.de>
---
 arch/arm64/include/asm/compat.h   | 11 -----------
 arch/arm64/include/asm/stat.h     |  1 +
 arch/arm64/kernel/hw_breakpoint.c |  1 -
 arch/arm64/kernel/perf_regs.c     |  2 +-
 arch/mips/include/asm/compat.h    | 11 -----------
 arch/mips/kernel/signal32.c       |  2 +-
 arch/parisc/include/asm/compat.h  | 11 -----------
 arch/powerpc/include/asm/compat.h | 11 -----------
 arch/powerpc/kernel/asm-offsets.c |  2 +-
 arch/powerpc/oprofile/backtrace.c |  1 +
 arch/s390/hypfs/hypfs_sprp.c      |  1 -
 arch/s390/include/asm/compat.h    | 11 -----------
 arch/s390/include/asm/elf.h       |  4 ++--
 arch/s390/kvm/priv.c              |  1 -
 arch/s390/pci/pci_clp.c           |  1 -
 arch/sparc/include/asm/compat.h   | 11 -----------
 arch/tile/include/asm/compat.h    | 11 -----------
 arch/x86/events/core.c            |  2 +-
 arch/x86/include/asm/compat.h     | 11 -----------
 arch/x86/include/asm/ftrace.h     |  2 +-
 arch/x86/include/asm/sys_ia32.h   |  2 +-
 arch/x86/kernel/sys_x86_64.c      |  2 +-
 drivers/s390/block/dasd_ioctl.c   |  1 -
 drivers/s390/char/fs3270.c        |  1 -
 drivers/s390/char/sclp_ctl.c      |  1 -
 drivers/s390/char/vmcp.c          |  1 -
 drivers/s390/cio/chsc_sch.c       |  1 -
 drivers/s390/net/qeth_core_main.c |  2 +-
 include/linux/compat.h            |  1 +
 include/linux/compat_time.h       | 19 +++++++++++++++++++
 30 files changed, 32 insertions(+), 107 deletions(-)
 create mode 100644 include/linux/compat_time.h

diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index c00c62e1a4a3..0030f79808b3 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -34,7 +34,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -66,16 +65,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 #ifdef __AARCH64EB__
 	short		st_dev;
diff --git a/arch/arm64/include/asm/stat.h b/arch/arm64/include/asm/stat.h
index 15e35598ac40..eab738019707 100644
--- a/arch/arm64/include/asm/stat.h
+++ b/arch/arm64/include/asm/stat.h
@@ -20,6 +20,7 @@
 
 #ifdef CONFIG_COMPAT
 
+#include <linux/compat_time.h>
 #include <asm/compat.h>
 
 /*
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index 74bb56f656ef..413dbe530da8 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -30,7 +30,6 @@
 #include <linux/smp.h>
 #include <linux/uaccess.h>
 
-#include <asm/compat.h>
 #include <asm/current.h>
 #include <asm/debug-monitors.h>
 #include <asm/hw_breakpoint.h>
diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c
index 1d091d048d04..0bbac612146e 100644
--- a/arch/arm64/kernel/perf_regs.c
+++ b/arch/arm64/kernel/perf_regs.c
@@ -1,11 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0
+#include <linux/compat.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/perf_event.h>
 #include <linux/bug.h>
 #include <linux/sched/task_stack.h>
 
-#include <asm/compat.h>
 #include <asm/perf_regs.h>
 #include <asm/ptrace.h>
 
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 9a0fa66b81ac..3e548ee99a2f 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -14,7 +14,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_suseconds_t;
 
@@ -46,16 +45,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	s32		st_pad1[3];
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index c4db910a8794..b5d9e1784aff 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -8,13 +8,13 @@
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  * Copyright (C) 2016, Imagination Technologies Ltd.
  */
+#include <linux/compat.h>
 #include <linux/compiler.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>
 #include <linux/syscalls.h>
 
-#include <asm/compat.h>
 #include <asm/compat-signal.h>
 #include <linux/uaccess.h>
 #include <asm/unistd.h>
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index c22db5323244..6f256e7b95e3 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -13,7 +13,6 @@
 
 typedef u32	compat_size_t;
 typedef s32	compat_ssize_t;
-typedef s32	compat_time_t;
 typedef s32	compat_clock_t;
 typedef s32	compat_pid_t;
 typedef u32	__compat_uid_t;
@@ -40,16 +39,6 @@ typedef u32	compat_ulong_t;
 typedef u64	compat_u64;
 typedef u32	compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t		tv_sec;
-	s32			tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t		tv_sec;
-	s32			tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t		st_dev;	/* dev_t is 32 bits on parisc */
 	compat_ino_t		st_ino;	/* 32 bits */
diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
index 62168e1158f1..b4773c81f7d5 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -17,7 +17,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u32		__compat_uid_t;
@@ -45,16 +44,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	compat_ino_t	st_ino;
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index ea5eb91b836e..4a314620344f 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -13,6 +13,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 
+#include <linux/compat.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
@@ -42,7 +43,6 @@
 #include <asm/paca.h>
 #include <asm/lppaca.h>
 #include <asm/cache.h>
-#include <asm/compat.h>
 #include <asm/mmu.h>
 #include <asm/hvcall.h>
 #include <asm/xics.h>
diff --git a/arch/powerpc/oprofile/backtrace.c b/arch/powerpc/oprofile/backtrace.c
index ecc66d5f02c9..ad054dd0d666 100644
--- a/arch/powerpc/oprofile/backtrace.c
+++ b/arch/powerpc/oprofile/backtrace.c
@@ -7,6 +7,7 @@
  * 2 of the License, or (at your option) any later version.
 **/
 
+#include <linux/compat_time.h>
 #include <linux/oprofile.h>
 #include <linux/sched.h>
 #include <asm/processor.h>
diff --git a/arch/s390/hypfs/hypfs_sprp.c b/arch/s390/hypfs/hypfs_sprp.c
index ae0ed8dd5f1b..5d85a039391c 100644
--- a/arch/s390/hypfs/hypfs_sprp.c
+++ b/arch/s390/hypfs/hypfs_sprp.c
@@ -13,7 +13,6 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/uaccess.h>
-#include <asm/compat.h>
 #include <asm/diag.h>
 #include <asm/sclp.h>
 #include "hypfs.h"
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 9830fb6b076e..501aaff85304 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -53,7 +53,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -97,16 +96,6 @@ typedef struct {
 	u32 gprs_high[NUM_GPRS];
 } s390_compat_regs_high;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	u16		__pad1;
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 1a61b1b997f2..7d22a474a040 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -125,8 +125,9 @@
  * ELF register definitions..
  */
 
+#include <linux/compat.h>
+
 #include <asm/ptrace.h>
-#include <asm/compat.h>
 #include <asm/syscall.h>
 #include <asm/user.h>
 
@@ -136,7 +137,6 @@ typedef s390_regs elf_gregset_t;
 typedef s390_fp_regs compat_elf_fpregset_t;
 typedef s390_compat_regs compat_elf_gregset_t;
 
-#include <linux/compat.h>
 #include <linux/sched/mm.h>	/* for task_struct */
 #include <asm/mmu_context.h>
 
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index ebfa0442e569..a3bce0e84346 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -26,7 +26,6 @@
 #include <asm/gmap.h>
 #include <asm/io.h>
 #include <asm/ptrace.h>
-#include <asm/compat.h>
 #include <asm/sclp.h>
 #include "gaccess.h"
 #include "kvm-s390.h"
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 93cd0f1ca12b..19b2d2a9b43d 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -19,7 +19,6 @@
 #include <linux/uaccess.h>
 #include <asm/pci_debug.h>
 #include <asm/pci_clp.h>
-#include <asm/compat.h>
 #include <asm/clp.h>
 #include <uapi/asm/clp.h>
 
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index 615283e16f22..844a89739e76 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -11,7 +11,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -39,16 +38,6 @@ typedef u32		compat_ulong_t;
 typedef u64		compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	compat_ino_t	st_ino;
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index 769ff6ac0bf5..06188e0da2de 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -29,7 +29,6 @@ typedef u32		compat_ulong_t;
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
 typedef s32		compat_off_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef u32		compat_ino_t;
 typedef u32		compat_caddr_t;
@@ -59,16 +58,6 @@ typedef unsigned long compat_elf_greg_t;
 #define COMPAT_ELF_NGREG (sizeof(struct pt_regs) / sizeof(compat_elf_greg_t))
 typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 #define compat_stat stat
 #define compat_statfs statfs
 
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 140d33288e78..6b8961912781 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2391,7 +2391,7 @@ static unsigned long get_segment_base(unsigned int segment)
 
 #ifdef CONFIG_IA32_EMULATION
 
-#include <asm/compat.h>
+#include <linux/compat.h>
 
 static inline int
 perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry_ctx *entry)
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index e1c8dab86670..7cd314b71c51 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -17,7 +17,6 @@
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
-typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
 typedef u16		__compat_uid_t;
@@ -46,16 +45,6 @@ typedef u32		compat_u32;
 typedef u64 __attribute__((aligned(4))) compat_u64;
 typedef u32		compat_uptr_t;
 
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
 struct compat_stat {
 	compat_dev_t	st_dev;
 	u16		__pad1;
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index 09ad88572746..db25aa15b705 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -49,7 +49,7 @@ int ftrace_int3_handler(struct pt_regs *regs);
 #if !defined(__ASSEMBLY__) && !defined(COMPILE_OFFSETS)
 
 #if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_IA32_EMULATION)
-#include <asm/compat.h>
+#include <linux/compat.h>
 
 /*
  * Because ia32 syscalls do not map to x86_64 syscall numbers
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index 82c34ee25a65..8c4083dcd901 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -12,11 +12,11 @@
 
 #ifdef CONFIG_COMPAT
 
+#include <linux/compat.h>
 #include <linux/compiler.h>
 #include <linux/linkage.h>
 #include <linux/types.h>
 #include <linux/signal.h>
-#include <asm/compat.h>
 #include <asm/ia32.h>
 
 /* ia32/sys_ia32.c */
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 676774b9bb8d..6cba5755958c 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
+#include <linux/compat.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
@@ -19,7 +20,6 @@
 #include <linux/elf.h>
 
 #include <asm/elf.h>
-#include <asm/compat.h>
 #include <asm/ia32.h>
 #include <asm/syscalls.h>
 #include <asm/mpx.h>
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 7bdc6aaa0ba3..2016e0ed5865 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -18,7 +18,6 @@
 #include <linux/fs.h>
 #include <linux/blkpg.h>
 #include <linux/slab.h>
-#include <asm/compat.h>
 #include <asm/ccwdev.h>
 #include <asm/schid.h>
 #include <asm/cmb.h>
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 61822480a2a0..16a4e8528bbc 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -19,7 +19,6 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 
-#include <asm/compat.h>
 #include <asm/ccwdev.h>
 #include <asm/cio.h>
 #include <asm/ebcdic.h>
diff --git a/drivers/s390/char/sclp_ctl.c b/drivers/s390/char/sclp_ctl.c
index a78cea0c3a09..248b5db3eaa8 100644
--- a/drivers/s390/char/sclp_ctl.c
+++ b/drivers/s390/char/sclp_ctl.c
@@ -14,7 +14,6 @@
 #include <linux/init.h>
 #include <linux/ioctl.h>
 #include <linux/fs.h>
-#include <asm/compat.h>
 #include <asm/sclp_ctl.h>
 #include <asm/sclp.h>
 
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index 17e411c57576..948ce82a7725 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -23,7 +23,6 @@
 #include <linux/mutex.h>
 #include <linux/cma.h>
 #include <linux/mm.h>
-#include <asm/compat.h>
 #include <asm/cpcmd.h>
 #include <asm/debug.h>
 #include <asm/vmcp.h>
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 0015729d917d..8d9f36625ba5 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -16,7 +16,6 @@
 #include <linux/miscdevice.h>
 #include <linux/kernel_stat.h>
 
-#include <asm/compat.h>
 #include <asm/cio.h>
 #include <asm/chsc.h>
 #include <asm/isc.h>
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index c8b308cfabf1..d3529ef6e0f7 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -10,6 +10,7 @@
 #define KMSG_COMPONENT "qeth"
 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
 
+#include <linux/compat.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/string.h>
@@ -32,7 +33,6 @@
 #include <asm/chpid.h>
 #include <asm/io.h>
 #include <asm/sysinfo.h>
-#include <asm/compat.h>
 #include <asm/diag.h>
 #include <asm/cio.h>
 #include <asm/ccwdev.h>
diff --git a/include/linux/compat.h b/include/linux/compat.h
index bdf1908a392e..0eb4a3a8f62e 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -7,6 +7,7 @@
  */
 
 #include <linux/types.h>
+#include <linux/compat_time.h>
 
 #include <linux/stat.h>
 #include <linux/param.h>	/* for HZ */
diff --git a/include/linux/compat_time.h b/include/linux/compat_time.h
new file mode 100644
index 000000000000..56a54a1e4355
--- /dev/null
+++ b/include/linux/compat_time.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_COMPAT_TIME_H
+#define _LINUX_COMPAT_TIME_H
+
+#include <linux/types.h>
+
+typedef s32		compat_time_t;
+
+struct compat_timespec {
+	compat_time_t	tv_sec;
+	s32		tv_nsec;
+};
+
+struct compat_timeval {
+	compat_time_t	tv_sec;
+	s32		tv_usec;
+};
+
+#endif /* _LINUX_COMPAT_TIME_H */
-- 
2.14.1

From - Thu Nov 08 21:41:04 2018
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Newsgroups: gmane.linux.drivers.driver-project.devel,gmane.linux.ports.mips.general,gmane.linux.ports.sparc,gmane.linux.kernel.year-2038,gmane.linux.oprofile,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.api,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v5 00/10] posix_clocks: Prepare syscalls for 64 bit time_t
 conversion
Date: Wed, 14 Mar 2018 17:12:44 +0100
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Cc: Mark Rutland <mark.rutland@arm.com>,
 "open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
 Peter Zijlstra <peterz@infradead.org>,
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 "H. Peter Anvin" <hpa@zytor.com>, sparclinux <sparclinux@vger.kernel.org>,
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 y2038 Mailman List <y2038@lists.linaro.org>,
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To: Deepa Dinamani <deepa.kernel@gmail.com>
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On Wed, Mar 14, 2018 at 5:03 AM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
> The series is a preparation series for individual architectures
> to use 64 bit time_t syscalls in compat and 32 bit emulation modes.
>
> This is a follow up to the series Arnd Bergmann posted:
> https://sourceware.org/ml/libc-alpha/2015-05/msg00070.html [1]
>
> Thomas, Arnd, this seems ready to be merged now.
> Can you help get this merged?
>
> Big picture is as per the lwn article:
> https://lwn.net/Articles/643234/ [2]
>
> The series is directed at converting posix clock syscalls:
> clock_gettime, clock_settime, clock_getres and clock_nanosleep
> to use a new data structure __kernel_timespec at syscall boundaries.
> __kernel_timespec maintains 64 bit time_t across all execution modes.
>
> vdso will be handled as part of each architecture when they enable
> support for 64 bit time_t.
>
> The compat syscalls are repurposed to provide backward compatibility
> by using them as native syscalls as well for 32 bit architectures.
> They will continue to use timespec at syscall boundaries.
>
> CONFIG_64_BIT_TIME controls whether the syscalls use __kernel_timespec
> or timespec at syscall boundaries.
>
> The series does the following:
> 1. Enable compat syscalls on 32 bit architectures.
> 2. Add a new __kernel_timespec type to be used as the data structure
>    for all the new syscalls.
> 3. Add new config CONFIG_64BIT_TIME(intead of the CONFIG_COMPAT_TIME in
>    [1] and [2] to switch to new definition of __kernel_timespec. It is
>    the same as struct timespec otherwise.
> 4. Add new CONFIG_32BIT_TIME to conditionally compile compat syscalls.

I've applied all 10 patches to my y2038 git branch [1], which is part
of linux-next,
to give it a little wider testing. If everything goes well, I'd send a
pull request to
Thomas next week so he can integrate it into tip from there, or (if he prefers)
send it directly to Linus in the merge window.

Thanks a lot for your persistence and your work on this!

      Arnd

[1] git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git#y2038

From - Thu Nov 08 21:41:04 2018
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Subject: Re: [Y2038] [PATCH v4 02/10] include: Move compat_timespec/ timeval
 to compat_time.h
Date: Wed, 14 Mar 2018 21:52:21 +0100
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 "open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
 Peter Zijlstra <peterz@infradead.org>,
 Catalin Marinas <catalin.marinas@arm.com>,
 Heiko Carstens <heiko.carstens@de.ibm.com>, Paul Mackerras <paulus@samba.org>,
 "H. Peter Anvin" <hpa@zytor.com>, sparclinux <sparclinux@vger.kernel.org>,
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To: Deepa Dinamani <deepa.kernel@gmail.com>
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On Wed, Mar 14, 2018 at 4:50 AM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
> The file arch/arm64/kernel/process.c needs asm/compat.h also to be
> included directly since this is included conditionally from
> include/compat.h. This does seem to be typical of arm64 as I was not
> completely able to get rid of asm/compat.h includes for arm64 in this
> series. My plan is to have separate patches to get rid of asm/compat.h
> includes for the architectures that are not straight forward to keep
> this series simple.
> I will fix this and update the series.
>

I ran across the same thing in two more files during randconfig testing on
arm64 now, adding this fixup on top for the moment, but maybe there
is a better way:

commit 4f3e9e1211799a79b201a1af309a1ec3864147ec
Author: Arnd Bergmann <arnd@arndb.de>
Date:   Wed Mar 14 18:23:16 2018 +0100

    arm64: fix perf_regs.c

    arch/arm64/kernel/perf_regs.c: In function 'perf_reg_abi':
    arch/arm64/kernel/perf_regs.c:50:6: error: implicit declaration of
function 'is_compat_thread'; did you mean 'is_compat_task'?
[-Werror=implicit-function-declaration]
    arch/arm64/kernel/hw_breakpoint.c: In function 'is_compat_bp':
    arch/arm64/kernel/hw_breakpoint.c:182:16: error: implicit
declaration of function 'is_compat_thread'; did you mean
'is_compat_task'? [-Werror=implicit-function-declaration]

    Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/arm64/kernel/hw_breakpoint.c
b/arch/arm64/kernel/hw_breakpoint.c
index 413dbe530da8..74bb56f656ef 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -30,6 +30,7 @@
 #include <linux/smp.h>
 #include <linux/uaccess.h>

+#include <asm/compat.h>
 #include <asm/current.h>
 #include <asm/debug-monitors.h>
 #include <asm/hw_breakpoint.h>
diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c
index 0bbac612146e..1b463a4efe49 100644
--- a/arch/arm64/kernel/perf_regs.c
+++ b/arch/arm64/kernel/perf_regs.c
@@ -6,6 +6,7 @@
 #include <linux/bug.h>
 #include <linux/sched/task_stack.h>

+#include <asm/compat.h>
 #include <asm/perf_regs.h>
 #include <asm/ptrace.h>

From - Thu Nov 08 21:41:04 2018
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Subject: Re: [Y2038] [PATCH v4 02/10] include: Move compat_timespec/ timeval
 to compat_time.h
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On Wed, Mar 14, 2018 at 1:52 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Wed, Mar 14, 2018 at 4:50 AM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
>> The file arch/arm64/kernel/process.c needs asm/compat.h also to be
>> included directly since this is included conditionally from
>> include/compat.h. This does seem to be typical of arm64 as I was not
>> completely able to get rid of asm/compat.h includes for arm64 in this
>> series. My plan is to have separate patches to get rid of asm/compat.h
>> includes for the architectures that are not straight forward to keep
>> this series simple.
>> I will fix this and update the series.
>>
>
> I ran across the same thing in two more files during randconfig testing on
> arm64 now, adding this fixup on top for the moment, but maybe there
> is a better way:

I was looking at how Al tested his uaccess patches:
https://www.spinics.net/lists/linux-fsdevel/msg108752.html

He seems to be running the kbuild bot tests on his own git.
Is it possible to verify it this way on the 2038 tree? Or, I could
host a tree also.

Thanks,
Deepa

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Subject: Re: [Y2038] [PATCH v4 02/10] include: Move compat_timespec/ timeval
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Cc: Mark Rutland <mark.rutland@arm.com>,
 "open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
 Peter Zijlstra <peterz@infradead.org>,
 Catalin Marinas <catalin.marinas@arm.com>,
 Heiko Carstens <heiko.carstens@de.ibm.com>, Paul Mackerras <paulus@samba.org>,
 "H. Peter Anvin" <hpa@zytor.com>, sparclinux <sparclinux@vger.kernel.org>,
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To: Deepa Dinamani <deepa.kernel@gmail.com>
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On Thu, Mar 15, 2018 at 3:51 AM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
> On Wed, Mar 14, 2018 at 1:52 PM, Arnd Bergmann <arnd@arndb.de> wrote:
>> On Wed, Mar 14, 2018 at 4:50 AM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
>>> The file arch/arm64/kernel/process.c needs asm/compat.h also to be
>>> included directly since this is included conditionally from
>>> include/compat.h. This does seem to be typical of arm64 as I was not
>>> completely able to get rid of asm/compat.h includes for arm64 in this
>>> series. My plan is to have separate patches to get rid of asm/compat.h
>>> includes for the architectures that are not straight forward to keep
>>> this series simple.
>>> I will fix this and update the series.
>>>
>>
>> I ran across the same thing in two more files during randconfig testing on
>> arm64 now, adding this fixup on top for the moment, but maybe there
>> is a better way:
>
> I was looking at how Al tested his uaccess patches:
> https://www.spinics.net/lists/linux-fsdevel/msg108752.html
>
> He seems to be running the kbuild bot tests on his own git.
> Is it possible to verify it this way on the 2038 tree? Or, I could
> host a tree also.

The kbuild bot should generally pick up any branch on git.kernel.org,
and the patches sent to the mailing list. It tests a lot of things
configurations, but I tend to find some things that it doesn't find
by doing lots of randconfig builds on fewer target architectures
(I only build arm, arm64 and x86 regularly).

I remember that there was some discussion about a method
to get the bot to test other branches (besides asking Fengguang
to add it manually), but I don't remember what came out of that.

        Arnd

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Hi Carlo,

On 15.03.2018 16:36, Carlo Pisani wrote:
> I am experiencing a very annoying behavior with my HPPA C3600: if I
> compile the (linux) kernel with  -mlong-calls then the IO (e.g. file
> copy) becomes very slow, and the PCI becomes unstable (i.e. it crashes
> the machine)
> 
> kernel  gcc     binutils    with mlong    without mlong
> 4.15.7  4.9.3   2.25.1     13.4 MB/s    27.0 MB/s
> 4.15.7  6.4.0   2.25.1     13.4 MB/s    27.0 MB/s
> 4.15.7  6.4.0   2.29.1     14.4 MB/s    25.0 MB/s

Interesting bad results!
 
> these tests were performed with
> 
> dd if=/dev/zero of=here bs=1k count=100000
> 
> -mlong-calls is enabled in the kernel by "CONFIG_MLONGCALLS"

I think nobody else noticed the bad performance due to CONFIG_MLONGCALLS yet.
I've now started some testing if we can disable that option on the debian
kernels...

> the help-guide says "If you configure the kernel to include many
> drivers built-in instead as modules, the kernel executable may become
> too big, so that the linker will not be able to resolve some long
> branches and fails to link your vmlinux kernel. In that case enabling
> this option will help you to overcome this limit by using the
> -mlong-calls compiler option. Usually you want to say N here, unless
> you e.g. want to build a kernel which includes all necessary drivers
> built-in and which can be used for TFTP booting without the need to
> have an initrd ramdisk. Enabling this option will probably slow down
> your kernel"
> 
> I need -mlong-calls because I need to compile the kernel without
> kernel-modules

Why?

> all built-in, that makes the size of the kernel of
> about 23Mbytes, thus without -mlong-calls the linker fails to "link"
> objects
> 
> let me know

I'm not sure what kind of help you expect here?
The only option I see is that you try to disable some options (modules) you won't
need and thus reduce the kernel size. xfs, ipv6 and such are good candidates.
Or use a 32bit kernel ?

Helge



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On 2018-03-15 4:43 PM, Helge Deller wrote:
> On 15.03.2018 16:36, Carlo Pisani wrote:
>> I am experiencing a very annoying behavior with my HPPA C3600: if I
>> compile the (linux) kernel with  -mlong-calls then the IO (e.g. file
>> copy) becomes very slow, and the PCI becomes unstable (i.e. it crashes
>> the machine)
>>
>> kernel  gcc     binutils    with mlong    without mlong
>> 4.15.7  4.9.3   2.25.1     13.4 MB/s    27.0 MB/s
>> 4.15.7  6.4.0   2.25.1     13.4 MB/s    27.0 MB/s
>> 4.15.7  6.4.0   2.29.1     14.4 MB/s    25.0 MB/s
> Interesting bad results!
I don't believe the instability mentioned is due to long calls. It's the 
following issue:
https://www.spinics.net/lists/linux-parisc/msg01024.html


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On 2018-03-15 4:43 PM, Helge Deller wrote:
>> kernel  gcc     binutils    with mlong    without mlong
>> 4.15.7  4.9.3   2.25.1     13.4 MB/s    27.0 MB/s
>> 4.15.7  6.4.0   2.25.1     13.4 MB/s    27.0 MB/s
>> 4.15.7  6.4.0   2.29.1     14.4 MB/s    25.0 MB/s
> Interesting bad results!
>   
It's hard to understand why the performance would deteriorate so much 
but I see essentially
the same behavior.

Dave


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> >> kernel  gcc     binutils    with mlong    without mlong
> >> 4.15.7  4.9.3   2.25.1     13.4 MB/s    27.0 MB/s
> >> 4.15.7  6.4.0   2.25.1     13.4 MB/s    27.0 MB/s
> >> 4.15.7  6.4.0   2.29.1     14.4 MB/s    25.0 MB/s
> > Interesting bad results!
> >   
> It's hard to understand why the performance would deteriorate so much 
> but I see essentially the same behavior.

Speaking of debian kernel, it's nearly impossible to link a kernel without mlong-calls.

Compiling without mlong-calls generates this (R_PARISC_PCREL22F):
        b,l external_func,%r2
        nop

With -mlong-calls it is much more complex:
.LC0:
        .dword  P%external_func
.globl a
a:
        addil LT'.LC0,%r27
        ldd RT'.LC0(%r1),%r28
        ldd 0(%r28),%r28
        ldd 16(%r28),%r2
        bve,l (%r2),%r2


Since our kernel is running in the first 4GB of RAM (even on 64bit), couldn't we instead
introduce a gcc option, e.g. "-mkernel-indirect-calls", which translates to:
        ldil    L%external_func, %r2        // R_PARISC_DIR21L
        ldo     R%external_func(%r2), %r2   // R_PARISC_DIR14R  
        bve,l (%r2),%r2

Does -mfast-indirect-calls has any effect at all?
I haven't seen any difference when using this option.

Thoughts?
Helge



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On 2018-03-16 7:25 AM, Helge Deller wrote:
>>>> kernel  gcc     binutils    with mlong    without mlong
>>>> 4.15.7  4.9.3   2.25.1     13.4 MB/s    27.0 MB/s
>>>> 4.15.7  6.4.0   2.25.1     13.4 MB/s    27.0 MB/s
>>>> 4.15.7  6.4.0   2.29.1     14.4 MB/s    25.0 MB/s
>>> Interesting bad results!
>>>    
>> It's hard to understand why the performance would deteriorate so much
>> but I see essentially the same behavior.
> Speaking of debian kernel, it's nearly impossible to link a kernel without mlong-calls.
>
> Compiling without mlong-calls generates this (R_PARISC_PCREL22F):
>          b,l external_func,%r2
>          nop
On PA 2.0, this is a 22 bit pc-relative call that has a branch distance 
of 8 MB.  We have no stub support
in the gnu 64-bit linker.  If we had stub support, this would be best 
solution.

In addition to the argument registers, the argument pointer needs to be 
loaded for each call.

>
> With -mlong-calls it is much more complex:
> .LC0:
>          .dword  P%external_func
> .globl a
> a:
>          addil LT'.LC0,%r27
>          ldd RT'.LC0(%r1),%r28
>          ldd 0(%r28),%r28
>          ldd 16(%r28),%r2
>          bve,l (%r2),%r2
This is standard 64-bit indirect call.  It calls via a function 
descriptor.  It assumes the PIC register may change
and the callee may be in a different space (i.e., 64-bit hpux runtime).  
The bve instruction is specific to PA 2.0.
b
In the kernel, we probably don't need the load of the new PIC register 
(omitted from the above).

>
>
> Since our kernel is running in the first 4GB of RAM (even on 64bit), couldn't we instead
> introduce a gcc option, e.g. "-mkernel-indirect-calls", which translates to:
>          ldil    L%external_func, %r2        // R_PARISC_DIR21L
>          ldo     R%external_func(%r2), %r2   // R_PARISC_DIR14R
>          bve,l (%r2),%r2
Another option is to use ble (i.e., call sequence generated using 
-mfast-indirect-calls).  It yields the same length
call sequence as your above sequence and it works on both PA 1.x and 2.0.

The above sequence is not PIC.  What about modules?

In the above three sequences, there is a delay slot after the branch 
which might be filled by the compiler with a
useful instruction.
>
> Does -mfast-indirect-calls has any effect at all?
> I haven't seen any difference when using this option.
At the moment, this option only applies to the 32-bit compiler.
>
> Thoughts?

I don't remember any huge increase in gcc build time with -mlong-calls.  
Calls don't usually dominate performance.

Dave


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On Fri, Mar 16, 2018 at 4:25 AM, Helge Deller <deller@gmx.de> wrote:
>> >> kernel  gcc     binutils    with mlong    without mlong
>> >> 4.15.7  4.9.3   2.25.1     13.4 MB/s    27.0 MB/s
>> >> 4.15.7  6.4.0   2.25.1     13.4 MB/s    27.0 MB/s
>> >> 4.15.7  6.4.0   2.29.1     14.4 MB/s    25.0 MB/s
>> > Interesting bad results!
>> >
>> It's hard to understand why the performance would deteriorate so much
>> but I see essentially the same behavior.
>
> Speaking of debian kernel, it's nearly impossible to link a kernel without mlong-calls.

This week I succeeded in building a stripped-down kernel without
mlong-calls (in Gentoo), but was unable to get anything to link
without mlong-calls when CONFIG_PARISC_PAGE_SIZE_16KB=y.

With mlong-calls, I couldn't get a 16K page-size kernel to boot
either. Is this a configuration anyone uses or tests? 16K pages are
supposed to give better performance, so it'd be good if they worked.



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On 2018-03-16 1:29 PM, Matt Turner wrote:
> This week I succeeded in building a stripped-down kernel without
> mlong-calls (in Gentoo), but was unable to get anything to link
> without mlong-calls when CONFIG_PARISC_PAGE_SIZE_16KB=y.
>
I wouldn't recommend the above option.  It affects alignment of some 
things in kernel
and as you found it makes the kernel bigger.  There are also some things 
in userspace
that assume 4KB pages.

Dave


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On Fri, Mar 16, 2018 at 10:44 AM, John David Anglin
<dave.anglin@bell.net> wrote:
> On 2018-03-16 1:29 PM, Matt Turner wrote:
>>
>> This week I succeeded in building a stripped-down kernel without
>> mlong-calls (in Gentoo), but was unable to get anything to link
>> without mlong-calls when CONFIG_PARISC_PAGE_SIZE_16KB=y.
>>
> I wouldn't recommend the above option.  It affects alignment of some things
> in kernel
> and as you found it makes the kernel bigger.  There are also some things in
> userspace
> that assume 4KB pages.

I expect we're past the point where there are any significant
obstacles to userspace support. Most platforms successfully support
multiple page sizes these days.



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On 2018-03-16 1:58 PM, Matt Turner wrote:
> On Fri, Mar 16, 2018 at 10:44 AM, John David Anglin
> <dave.anglin@bell.net> wrote:
>> On 2018-03-16 1:29 PM, Matt Turner wrote:
>>> This week I succeeded in building a stripped-down kernel without
>>> mlong-calls (in Gentoo), but was unable to get anything to link
>>> without mlong-calls when CONFIG_PARISC_PAGE_SIZE_16KB=y.
>>>
>> I wouldn't recommend the above option.  It affects alignment of some things
>> in kernel
>> and as you found it makes the kernel bigger.  There are also some things in
>> userspace
>> that assume 4KB pages.
> I expect we're past the point where there are any significant
> obstacles to userspace support. Most platforms successfully support
> multiple page sizes these days.
>
But they don't have the problem we do with non equivalent aliasing. The 
data section starts on a
page boundary on parisc and it doesn't overlap text.

Dave


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Xref: news.gmane.org gmane.linux.debian.ports.hppa:7690 gmane.linux.ports.parisc:28336
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On 16.03.2018 19:03, John David Anglin wrote:
> On 2018-03-16 1:58 PM, Matt Turner wrote:
>> On Fri, Mar 16, 2018 at 10:44 AM, John David Anglin
>> <dave.anglin@bell.net> wrote:
>>> On 2018-03-16 1:29 PM, Matt Turner wrote:
>>>> This week I succeeded in building a stripped-down kernel without
>>>> mlong-calls (in Gentoo), but was unable to get anything to link
>>>> without mlong-calls when CONFIG_PARISC_PAGE_SIZE_16KB=y.
>>>>
>>> I wouldn't recommend the above option.  It affects alignment of some things
>>> in kernel
>>> and as you found it makes the kernel bigger.  There are also some things in
>>> userspace
>>> that assume 4KB pages.
>> I expect we're past the point where there are any significant
>> obstacles to userspace support. Most platforms successfully support
>> multiple page sizes these days.
>>
> But they don't have the problem we do with non equivalent aliasing. The data section starts on a
> page boundary on parisc and it doesn't overlap text.

I'd be astonished, if anything other than 4kB page size is able to 
boot to a login prompt.
For example, I know the parisc PCI-specific code (dino,lba,...) still
depends on 4kb page sizes.
I've left the CONFIG options in the source in the hope somebody
will try to finish >4kb page support at some point.

Helge



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Cc: Mark Rutland <mark.rutland@arm.com>,
 "open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
 Peter Zijlstra <peterz@infradead.org>,
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To: Arnd Bergmann <arnd@arndb.de>
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On Thu, Mar 15, 2018 at 09:04:04AM +0100, Arnd Bergmann wrote:
>On Thu, Mar 15, 2018 at 3:51 AM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
>> On Wed, Mar 14, 2018 at 1:52 PM, Arnd Bergmann <arnd@arndb.de> wrote:
>>> On Wed, Mar 14, 2018 at 4:50 AM, Deepa Dinamani <deepa.kernel@gmail.com> wrote:
>>>> The file arch/arm64/kernel/process.c needs asm/compat.h also to be
>>>> included directly since this is included conditionally from
>>>> include/compat.h. This does seem to be typical of arm64 as I was not
>>>> completely able to get rid of asm/compat.h includes for arm64 in this
>>>> series. My plan is to have separate patches to get rid of asm/compat.h
>>>> includes for the architectures that are not straight forward to keep
>>>> this series simple.
>>>> I will fix this and update the series.
>>>>
>>>
>>> I ran across the same thing in two more files during randconfig testing on
>>> arm64 now, adding this fixup on top for the moment, but maybe there
>>> is a better way:
>>
>> I was looking at how Al tested his uaccess patches:
>> https://www.spinics.net/lists/linux-fsdevel/msg108752.html
>>
>> He seems to be running the kbuild bot tests on his own git.
>> Is it possible to verify it this way on the 2038 tree? Or, I could
>> host a tree also.
>
>The kbuild bot should generally pick up any branch on git.kernel.org,
>and the patches sent to the mailing list. It tests a lot of things
>configurations, but I tend to find some things that it doesn't find
>by doing lots of randconfig builds on fewer target architectures
>(I only build arm, arm64 and x86 regularly).
>
>I remember that there was some discussion about a method
>to get the bot to test other branches (besides asking Fengguang
>to add it manually), but I don't remember what came out of that.

People can send email to me or lkp@intel.com for adding new git URLs
to 0day tests. Such requests are very welcome. Server load is not a
problem -- don't worry about your git pushes adding our test load.
By default all branches in a git tree will be tested, unless there are
explicit blacklist/whitelist.

We also have scripts to scan git.kernel.org/github/LKML looking for
possible new git URLs to add to 0day kbuild tests. However depending
on the team's maintenance pressure they may or may not run frequently.

Thanks,
Fengguang

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Hi Linus,

please pull one patch for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.16-2

flush_cache_range() may be called without context, which then triggers a BUG().
This patch by Dave Anglin adds code to correctly handle this case.

Thanks,
Helge

----------------------------------------------------------------
John David Anglin (1):
      parisc: Handle case where flush_cache_range is called with no context

 arch/parisc/kernel/cache.c | 41 ++++++++++++++++++++++++++++++++---------
 1 file changed, 32 insertions(+), 9 deletions(-)


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* Carlo Pisani <carlojpisani@gmail.com>:
> I have created and applied the following patch
> testing the kernel with heavy I/O seems now stable
> 
> my C3600 is still under testing, moving chunks of 500Mbyte and compiling gcc-v6
> 
> 
> http://93.55.217.0//wonderland/chunk_of/user/ivelegacy/happa-dev/hppa2_0001_HPMC_fix_my_v1.patch

--- drivers/parisc/lba_pci.c	2018-01-28 22:20:33.000000000 +0100
+++ drivers/parisc/lba_pci.c	2018-03-15 12:26:44.839894952 +0100
@@ -1405,7 +1405,7 @@
 
 	/* Set HF mode as the default (vs. -1 mode). */
         stat = READ_REG32(d->hba.base_addr + LBA_STAT_CTL);
-	WRITE_REG32(stat | HF_ENABLE, d->hba.base_addr + LBA_STAT_CTL);
+	WRITE_REG32(stat & ~HF_ENABLE, d->hba.base_addr + LBA_STAT_CTL);
 
 	/*
 	** Writing a zero to STAT_CTL.rf (bit 0) will clear reset signal

That's the patch from Kyle:
https://www.spinics.net/lists/linux-parisc/msg01027.html

which comes out of this mail thread:
https://www.spinics.net/lists/linux-parisc/msg01024.html
specifically with those notes:
https://www.spinics.net/lists/linux-parisc/msg01026.html

Citing here:
"bus timeout" usually means we tried to read an address that doesn't
respond. that is, nothing on the bus accepted the transaction for it,
so it timed out and HPMC'd the box.

what you really need is the IIR, and the address it tried to access
(both the kernel vaddr which will be in the register, and the "system
requester address" from the hpmc dump which will be the physical address
mapped.

not sure why the hpmc handler is getting skipped, that's a little weird.

you can try hacking elroy to set softfail mode on that bus, which will
result in a timeout on the pci bus to return -1 (like what x86 and most
other architectures do) rather than hang the box, but it really likely
means a driver bug.



So, you change LBA to return -1 instead of faulting via HPMC which is
of course one work-around to avoid the HPMC.

But could you try to check the driver instead?

You run this SATA controller:
01:05.0 RAID bus controller: VIA Technologies, Inc. VT6421 IDE RAID

Can you maybe try to localize where in the drivers/ata/sata_via.c driver
triggers the HPMC ?


--- arch/parisc/kernel/hpmc.S	2018-01-28 22:20:33.000000000 +0100
+++ arch/parisc/kernel/hpmc.S	2018-03-15 14:13:46.611969815 +0100
@@ -308,4 +290,5 @@
 	.align 4
 	.export os_hpmc_size
 os_hpmc_size:
-	.word .os_hpmc_end-.os_hpmc
+	/* .word .os_hpmc_end-.os_hpmc */
+	.word (.os_hpmc_end - .os_hpmc) * 4 /* sizeof(u32) */

This one seems wrong.
I think you just didn't hit a HPMC with your first patch, and as such
this patch has no influence...

Helge



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Hi Helge,
just a nit on PCI terminology...

On Sat, Mar 17, 2018 at 12:36 PM, Helge Deller <deller@gmx.de> wrote:
> * Carlo Pisani <carlojpisani@gmail.com>:
>> I have created and applied the following patch
>> testing the kernel with heavy I/O seems now stable
>>
>> my C3600 is still under testing, moving chunks of 500Mbyte and compiling gcc-v6
>>
>>
>> http://93.55.217.0//wonderland/chunk_of/user/ivelegacy/happa-dev/hppa2_0001_HPMC_fix_my_v1.patch
>
> --- drivers/parisc/lba_pci.c    2018-01-28 22:20:33.000000000 +0100
> +++ drivers/parisc/lba_pci.c    2018-03-15 12:26:44.839894952 +0100
> @@ -1405,7 +1405,7 @@
>
>         /* Set HF mode as the default (vs. -1 mode). */
>          stat = READ_REG32(d->hba.base_addr + LBA_STAT_CTL);
> -       WRITE_REG32(stat | HF_ENABLE, d->hba.base_addr + LBA_STAT_CTL);
> +       WRITE_REG32(stat & ~HF_ENABLE, d->hba.base_addr + LBA_STAT_CTL);
>
>         /*
>         ** Writing a zero to STAT_CTL.rf (bit 0) will clear reset signal
>
> That's the patch from Kyle:
> https://www.spinics.net/lists/linux-parisc/msg01027.html
>
> which comes out of this mail thread:
> https://www.spinics.net/lists/linux-parisc/msg01024.html
> specifically with those notes:
> https://www.spinics.net/lists/linux-parisc/msg01026.html
>
> Citing here:
> "bus timeout" usually means we tried to read an address that doesn't
> respond. that is, nothing on the bus accepted the transaction for it,
> so it timed out and HPMC'd the box.

HF= Hard Fail on PCI "Master Abort".  "Master Abort" means the MMIO
transaction timed out - usually due to the device not responding to an
MMIO read.   We normally want HF to be enabled as you noted below in
order to get state of the CPU and which IO device it was trying to
access.

It's possible the "~0L" returned in SoftFail mode is being handled by
the driver OR the particular read that fails just doesn't matter.
Would have to see dmesg output if the driver ever complains about
invalid MMIO read data (~0L).

cheers,
grant

> what you really need is the IIR, and the address it tried to access
> (both the kernel vaddr which will be in the register, and the "system
> requester address" from the hpmc dump which will be the physical address
> mapped.
>
> not sure why the hpmc handler is getting skipped, that's a little weird.
>
> you can try hacking elroy to set softfail mode on that bus, which will
> result in a timeout on the pci bus to return -1 (like what x86 and most
> other architectures do) rather than hang the box, but it really likely
> means a driver bug.
>
>
>
> So, you change LBA to return -1 instead of faulting via HPMC which is
> of course one work-around to avoid the HPMC.
>
> But could you try to check the driver instead?
>
> You run this SATA controller:
> 01:05.0 RAID bus controller: VIA Technologies, Inc. VT6421 IDE RAID
>
> Can you maybe try to localize where in the drivers/ata/sata_via.c driver
> triggers the HPMC ?
>
>
> --- arch/parisc/kernel/hpmc.S   2018-01-28 22:20:33.000000000 +0100
> +++ arch/parisc/kernel/hpmc.S   2018-03-15 14:13:46.611969815 +0100
> @@ -308,4 +290,5 @@
>         .align 4
>         .export os_hpmc_size
>  os_hpmc_size:
> -       .word .os_hpmc_end-.os_hpmc
> +       /* .word .os_hpmc_end-.os_hpmc */
> +       .word (.os_hpmc_end - .os_hpmc) * 4 /* sizeof(u32) */
>
> This one seems wrong.
> I think you just didn't hit a HPMC with your first patch, and as such
> this patch has no influence...
>
> Helge
>



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[adding lists back to CC since this is a public discussion]

On Sat, Mar 17, 2018 at 5:36 PM, Carlo Pisani <carlojpisani@gmail.com> wrote:
>> Would have to see dmesg output if the driver ever complains about
>> invalid MMIO read data (~0L).
>
> I repeat AGAIN
>
> I have tested different sATA controllers
> - via6421
> - SIL24
> - Adaptex 2410

Ah sorry - I missed that.

> none of them has never complained in dmesg ( i have the console
> redirected the serial port )

Thanks for confirming Carlo!

Having worked on mv7042 and SIL3124 (IIRC) driver support for almost 4
years, I can tell you most SATA drivers suck. Helge is most likely
correct that this is due to a SATA driver bug. Since Intel x86 (32 or
64bit) systems ONLY support "SoftFail" mode, many driver issues are
never exposed until something gets corrupted or HW totally wedges.

> and all of them showed the same behavior under heavy I/O

While the symptom (HPMC) looks the same, the details are likely
different for each card. It's been over 10 years but ISTR that "SER
PIM" command when entered at boot prompt will dump those details. Ah,
yes, that's correct:
   https://parisc.wiki.kernel.org/index.php/How_to_report_a_parisc-linux_kernel_problem#HPMC


BTW, HPMCs can also be due to devices DMAing to an invalid address
since the IOMMU is "strict" and requires all DMA be "mapped". IIRC,
these DMA failures are "imprecise events" meaning SER PIM is the only
way to determine what the target DMA address was. This is non-trivial
stuff to debug since it requires pretty deep understanding of the SATA
controller operations and how the driver works.

> the C3600 machine stops to work, and I see errors in the LCD
> without a line from the kernel on the serial console

Yes, HPMC due to IO errors (including DMA failures and PCI Master
Abort) will lock up all other IO including the serial console. SER PIM
is the only output that will lead to diagnosing the underlying driver
bug.

But in SoftFail mode, I was hoping one of the drivers might complain
about "invalid value" - but that is likely way too optimistic on my
part. The only drivers that look for ~0L on MMIO read are the ones
that support PCI hotplug (e.g. PCMCIA devices and some higher end PCI
IO devices which target data center/server market).

cheers,
grant

ps. I haven't looked at mvsata or sil3124 SATA controller code since
2010. But if you could find a MV7042 PCI (or PCI-X?) SATA controller,
I have more faith in that driver/HW combination partly because I
tested it pretty thoroughly at the time.



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Hi Grant,

On 2018-03-17 12:12 PM, Grant Grundler wrote:
> "Master Abort" means the MMIO
> transaction timed out - usually due to the device not responding to an
> MMIO read.
In lba_pci.c and sba_iommu.c, it says "BE WARNED: register writes are 
posted" and need
to be followed by a read.  It seems there are a some routines in these 
modules that have
writes that aren't followed by a read.  One is lba_wr_cfg(). Another 
might be the macro
LBA_CFG_RESTORE().  Are these okay?

It seems probable that the problem that Carlo is having is a conflict 
between devices.

Dave


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Xref: news.gmane.org gmane.linux.debian.ports.hppa:7696 gmane.linux.ports.parisc:28343
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On 2018-03-16 9:37 AM, John David Anglin wrote:
> On 2018-03-16 7:25 AM, Helge Deller wrote:
>>>>> kernel  gcc     binutils    with mlong    without mlong
>>>>> 4.15.7  4.9.3   2.25.1     13.4 MB/s    27.0 MB/s
>>>>> 4.15.7  6.4.0   2.25.1     13.4 MB/s    27.0 MB/s
>>>>> 4.15.7  6.4.0   2.29.1     14.4 MB/s    25.0 MB/s
>>>> Interesting bad results!
>>> It's hard to understand why the performance would deteriorate so much
>>> but I see essentially the same behavior.
The performance difference between with and without long calls is 
exaggerated by the I/O
test used for the above results.  I see 22:05 and 21:39 hours for a gcc 
build and check with
and without kernel long calls on c8000, respectively.

I think the poor performance of long calls is primarily due to the loads 
which can trigger
TLB misses.  This implies we should work to minimize the impact of TLB 
flushes.
Flushing the whole TLB is quite detrimental to overall performance and 
it doesn't scale
well to multiple CPUs.  On rp3440, a pdc instruction takes about 570 
cycles because of
the broadcast to other CPUs.  So, we need to know whether a mapping is 
local and possibly
the set of CPUs a mapping applies to.

>> Speaking of debian kernel, it's nearly impossible to link a kernel 
>> without mlong-calls.
>>
>> Compiling without mlong-calls generates this (R_PARISC_PCREL22F):
>>          b,l external_func,%r2
>>          nop
> On PA 2.0, this is a 22 bit pc-relative call that has a branch 
> distance of 8 MB.  We have no stub support
> in the gnu 64-bit linker.  If we had stub support, this would be best 
> solution.
>
> In addition to the argument registers, the argument pointer needs to 
> be loaded for each call.
>
>>
>> With -mlong-calls it is much more complex:
>> .LC0:
>>          .dword  P%external_func
>> .globl a
>> a:
>>          addil LT'.LC0,%r27
>>          ldd RT'.LC0(%r1),%r28
>>          ldd 0(%r28),%r28
>>          ldd 16(%r28),%r2
>>          bve,l (%r2),%r2
> This is standard 64-bit indirect call.  It calls via a function 
> descriptor.  It assumes the PIC register may change
> and the callee may be in a different space (i.e., 64-bit hpux 
> runtime).  The bve instruction is specific to PA 2.0.
> b
> In the kernel, we probably don't need the load of the new PIC register 
> (omitted from the above).
We don't think we need function descriptors in the kernel.  They are 
only needed to load a new PIC register.
So, we can load the function address directly from the linkage table.

         addil LT'external_function,%r27
         ldd RT'external_function(%r1),%r2
         bve,l (%r2),%r2
         Delay slot

The above sequence is PIC.  It is the same length as the one suggested 
by Helge below and the
linker could convert it to Helge's sequence when the call is not 
external to the main linux kernel.
It does have one load that might trigger a TLB miss.

I don't know enough about the call sequences used to call functions in 
external modules but
it might be easier to do the relocation for the above.  It's probably 
already handled as the addil/ldd
sequence should already load the address of external_function.

It might also be possible to use a 32-bit PIC pc-relative sequence, but 
it is longer and 32-bit
pc-relative relocations might not be supported.

>
>>
>>
>> Since our kernel is running in the first 4GB of RAM (even on 64bit), 
>> couldn't we instead
>> introduce a gcc option, e.g. "-mkernel-indirect-calls", which 
>> translates to:
>>          ldil    L%external_func, %r2        // R_PARISC_DIR21L
>>          ldo     R%external_func(%r2), %r2   // R_PARISC_DIR14R
>>          bve,l (%r2),%r2
> Another option is to use ble (i.e., call sequence generated using 
> -mfast-indirect-calls).  It yields the same length
> call sequence as your above sequence and it works on both PA 1.x and 2.0.
>
> The above sequence is not PIC.  What about modules?
>
> In the above three sequences, there is a delay slot after the branch 
> which might be filled by the compiler with a
> useful instruction.
>>
>> Does -mfast-indirect-calls has any effect at all?
>> I haven't seen any difference when using this option.
> At the moment, this option only applies to the 32-bit compiler.
>>
>> Thoughts?
>
> I don't remember any huge increase in gcc build time with 
> -mlong-calls.  Calls don't usually dominate performance.
>
> Dave
>


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Subject: [PATCH AUTOSEL for 4.15 118/124] signal/parisc: Document a conflict
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From: "Eric W. Biederman" <ebiederm@xmission.com>

[ Upstream commit b5daf2b9d1c9a2b4f03ca93f75913ba2da3b3eaa ]

Setting si_code to 0 results in a userspace seeing an si_code of 0.
This is the same si_code as SI_USER.  Posix and common sense requires
that SI_USER not be a signal specific si_code.  As such this use of 0
for the si_code is a pretty horribly broken ABI.

Further use of si_code =3D=3D 0 guaranteed that copy_siginfo_to_user saw a
value of __SI_KILL and now sees a value of SIL_KILL with the result
that uid and pid fields are copied and which might copying the si_addr
field by accident but certainly not by design.  Making this a very
flakey implementation.

Utilizing FPE_FIXME siginfo_layout will now return SIL_FAULT and the
appropriate fields will reliably be copied.

This bug is 13 years old and parsic machines are no longer being built
so I don't know if it possible or worth fixing it.  But it is at least
worth documenting this so other architectures don't make the same
mistake.

Possible ABI fixes includee:
  - Send the signal without siginfo
  - Don't generate a signal
  - Possibly assign and use an appropriate si_code
  - Don't handle cases which can't happen

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Ref: 313c01d3e3fd ("[PATCH] PA-RISC update for 2.6.0")
Histroy Tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.=
git
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 arch/parisc/include/uapi/asm/siginfo.h | 7 +++++++
 arch/parisc/kernel/traps.c             | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/uapi/asm/siginfo.h b/arch/parisc/include/u=
api/asm/siginfo.h
index 4a1062e05aaf..be40331f757d 100644
--- a/arch/parisc/include/uapi/asm/siginfo.h
+++ b/arch/parisc/include/uapi/asm/siginfo.h
@@ -8,4 +8,11 @@
=20
 #include <asm-generic/siginfo.h>
=20
+/*
+ * SIGFPE si_codes
+ */
+#ifdef __KERNEL__
+#define FPE_FIXME	0	/* Broken dup of SI_USER */
+#endif /* __KERNEL__ */
+
 #endif
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 8453724b8009..c919e6c0a687 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -629,7 +629,7 @@ void notrace handle_interruption(int code, struct pt_re=
gs *regs)
 			si.si_signo =3D SIGFPE;
 			/* Set to zero, and let the userspace app figure it out from
 			   the insn pointed to by si_addr */
-			si.si_code =3D 0;
+			si.si_code =3D FPE_FIXME;
 			si.si_addr =3D (void __user *) regs->iaoq[0];
 			force_sig_info(SIGFPE, &si, current);
 			return;
--=20
2.14.1


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From: "Eric W. Biederman" <ebiederm@xmission.com>

[ Upstream commit b5daf2b9d1c9a2b4f03ca93f75913ba2da3b3eaa ]

Setting si_code to 0 results in a userspace seeing an si_code of 0.
This is the same si_code as SI_USER.  Posix and common sense requires
that SI_USER not be a signal specific si_code.  As such this use of 0
for the si_code is a pretty horribly broken ABI.

Further use of si_code =3D=3D 0 guaranteed that copy_siginfo_to_user saw a
value of __SI_KILL and now sees a value of SIL_KILL with the result
that uid and pid fields are copied and which might copying the si_addr
field by accident but certainly not by design.  Making this a very
flakey implementation.

Utilizing FPE_FIXME siginfo_layout will now return SIL_FAULT and the
appropriate fields will reliably be copied.

This bug is 13 years old and parsic machines are no longer being built
so I don't know if it possible or worth fixing it.  But it is at least
worth documenting this so other architectures don't make the same
mistake.

Possible ABI fixes includee:
  - Send the signal without siginfo
  - Don't generate a signal
  - Possibly assign and use an appropriate si_code
  - Don't handle cases which can't happen

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Ref: 313c01d3e3fd ("[PATCH] PA-RISC update for 2.6.0")
Histroy Tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.=
git
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 arch/parisc/include/uapi/asm/siginfo.h | 7 +++++++
 arch/parisc/kernel/traps.c             | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/uapi/asm/siginfo.h b/arch/parisc/include/u=
api/asm/siginfo.h
index 4a1062e05aaf..be40331f757d 100644
--- a/arch/parisc/include/uapi/asm/siginfo.h
+++ b/arch/parisc/include/uapi/asm/siginfo.h
@@ -8,4 +8,11 @@
=20
 #include <asm-generic/siginfo.h>
=20
+/*
+ * SIGFPE si_codes
+ */
+#ifdef __KERNEL__
+#define FPE_FIXME	0	/* Broken dup of SI_USER */
+#endif /* __KERNEL__ */
+
 #endif
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 8453724b8009..c919e6c0a687 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -629,7 +629,7 @@ void notrace handle_interruption(int code, struct pt_re=
gs *regs)
 			si.si_signo =3D SIGFPE;
 			/* Set to zero, and let the userspace app figure it out from
 			   the insn pointed to by si_addr */
-			si.si_code =3D 0;
+			si.si_code =3D FPE_FIXME;
 			si.si_addr =3D (void __user *) regs->iaoq[0];
 			force_sig_info(SIGFPE, &si, current);
 			return;
--=20
2.14.1


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From: Sasha Levin <Alexander.Levin@microsoft.com>
Newsgroups: gmane.linux.kernel.stable,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH AUTOSEL for 4.9 277/281] signal/parisc: Document a conflict
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Date: Mon, 19 Mar 2018 16:03:23 +0000
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From: "Eric W. Biederman" <ebiederm@xmission.com>

[ Upstream commit b5daf2b9d1c9a2b4f03ca93f75913ba2da3b3eaa ]

Setting si_code to 0 results in a userspace seeing an si_code of 0.
This is the same si_code as SI_USER.  Posix and common sense requires
that SI_USER not be a signal specific si_code.  As such this use of 0
for the si_code is a pretty horribly broken ABI.

Further use of si_code =3D=3D 0 guaranteed that copy_siginfo_to_user saw a
value of __SI_KILL and now sees a value of SIL_KILL with the result
that uid and pid fields are copied and which might copying the si_addr
field by accident but certainly not by design.  Making this a very
flakey implementation.

Utilizing FPE_FIXME siginfo_layout will now return SIL_FAULT and the
appropriate fields will reliably be copied.

This bug is 13 years old and parsic machines are no longer being built
so I don't know if it possible or worth fixing it.  But it is at least
worth documenting this so other architectures don't make the same
mistake.

Possible ABI fixes includee:
  - Send the signal without siginfo
  - Don't generate a signal
  - Possibly assign and use an appropriate si_code
  - Don't handle cases which can't happen

Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Ref: 313c01d3e3fd ("[PATCH] PA-RISC update for 2.6.0")
Histroy Tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.=
git
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 arch/parisc/include/uapi/asm/siginfo.h | 7 +++++++
 arch/parisc/kernel/traps.c             | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/uapi/asm/siginfo.h b/arch/parisc/include/u=
api/asm/siginfo.h
index 8fd10f85c50e..882a8775441f 100644
--- a/arch/parisc/include/uapi/asm/siginfo.h
+++ b/arch/parisc/include/uapi/asm/siginfo.h
@@ -7,4 +7,11 @@
=20
 #include <asm-generic/siginfo.h>
=20
+/*
+ * SIGFPE si_codes
+ */
+#ifdef __KERNEL__
+#define FPE_FIXME	0	/* Broken dup of SI_USER */
+#endif /* __KERNEL__ */
+
 #endif
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 378df9207406..3172cb52f703 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -627,7 +627,7 @@ void notrace handle_interruption(int code, struct pt_re=
gs *regs)
 			si.si_signo =3D SIGFPE;
 			/* Set to zero, and let the userspace app figure it out from
 			   the insn pointed to by si_addr */
-			si.si_code =3D 0;
+			si.si_code =3D FPE_FIXME;
 			si.si_addr =3D (void __user *) regs->iaoq[0];
 			force_sig_info(SIGFPE, &si, current);
 			return;
--=20
2.14.1


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Hi John!

On Sat, Mar 17, 2018 at 6:47 PM, John David Anglin <dave.anglin@bell.net> wrote:
> Hi Grant,
>
> On 2018-03-17 12:12 PM, Grant Grundler wrote:
>>
>> "Master Abort" means the MMIO
>> transaction timed out - usually due to the device not responding to an
>> MMIO read.
>
> In lba_pci.c and sba_iommu.c, it says "BE WARNED: register writes are
> posted" and need to be followed by a read.  It seems there are a some
> routines in these modules that have writes that aren't followed by a read.
> One is lba_wr_cfg(). Another might be the macro
> LBA_CFG_RESTORE().  Are these okay?

I looked through the two examples you point out and I *think* both are
ok.   lba_wr_cfg() issues an mmio write and immediately after calls
LBA_CFG_MASTER_ABORT_CHECK() which performs an MMIO read from the same
base address.

The LBA_CFG_RESTORE() is "lazy" - the next MMIO read will flush those
three writes and (I believe) any following MMIO writes will still be
issued in order.

Typically, the problem with posted MMIO writes is DMA or other events
don't start until the MMIO write is "seen" by the device. This is
important when specific timing between MMIO transactions is required
OR some magic (e.g. device reset, updates Frame Buffer, etc) happens.

> It seems probable that the problem that Carlo is having is a conflict
> between devices.

Hrm. I don't know. I haven't yet looked at the latest dump that Carlo
helpfully provided as I'm still traveling. Why do you suspect this?

I'm skeptical about "conflict between devices" (due to lba_wr_cfg())
for two reasons:
1) configuration space accesses are usually not part of normal IO
device transaction processing.
2) I've nearly always found that PCI Master Aborts (on MMIO reads) are
usually just a symptom of something else going wrong and not the root
cause.

Typically, the issues I recall running into are around the drivers
hitting a corner case where the device is still performing DMA to an
address that gets unmapped by the driver.  This will wedge the IOMMU
(sba) and then following MMIO reads will generate an HPMC.

The hard part is to determine what the corner case is based on a DMA
address (as reported in SER PIM output). It requires deeper
understanding of the DMA programming for the given SATA controller
(driver directing HW what to do), how transaction completions are
reported (SATA controller HW) and handled (driver operation).

In the past, I've sorted several of these issues out for tg3 and tulip
NIC drivers and I can with confidence say that some issues still
remain in the tulip driver shutdown path. But I gave up on trying to
fix those and lost interest later.

cheers,
grant



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[adding public lists back to CC since I can't sort this by myself any more]

On Sat, Mar 17, 2018 at 6:45 PM, Carlo Pisani <carlojpisani@gmail.com> wrote:
>> While the symptom (HPMC) looks the same, the details are likely
>> different for each card. It's been over 10 years but ISTR that "SER
>> PIM" command when entered at boot prompt will dump those details.
>
> this is an old log
> http://93.55.217.0/wonderland/chunk_of/user/ivelegacy/hppa-dev/ser-prim-2018-03-12--sata-crash

Awesome - thank you!

Can you tell me which SATA controller was installed when this crash was taken?

> my C3600 is now busy, compiling 4.16.*, a couple of branches with two
> different configurations, so I can't force a crash to have a fresh log
> at the moment, but I will with several SATA card!

No worries - start with one. :)

> what about SAS kernel modules? are them better than SATA?

In general, I expect they are better supported but I never worked with
SAS controllers.

> and what about SCSI (adaptec 29320, PCI-X)?

Sorry: I don't have any experience with adaptec - only the LSI SCSI
controllers, Marvel 7042 SATA controller, and Silicon Image 3124
(IIRC). The SI3124 was a PoS. MV7042 worked well and was reliable "at
scale".

> I am waiting for an array of disks, I can test the SCSI card under
> heavy I/O to see
> - performance
> - stability
>
> it will be delivered here for the end of the next week

Ok! Sounds like fun! :D

cheers,
grant



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On Mon, Mar 19, 2018 at 8:37 PM, Grant Grundler <grantgrundler@gmail.com> wrote:
...
>> this is an old log
>> http://93.55.217.0/wonderland/chunk_of/user/ivelegacy/hppa-dev/ser-prim-2018-03-12--sata-crash

BTW, I should point out one needs to give "CLEARPIM" command at PDC
command line in order to record a new HPMC.

So once you reproduce the crash, collect HPMC dump with "SER PIM",
then "CLEAR PIM" again. :)

cheers,
grant



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Subject: Re: kernel 4.15.7/64bit, C3600 is unstable during heavy I/O on PCI
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This is info about PCI devices that Carlo sent me.  It would help if we 
lnew where 0x4046b840
was in the kernel. From the IIR, 0xf3c001c, it seems the timeout 
occurred on a byte operation.

Dave

On 2018-03-17 2:58 PM, Carlo Pisani wrote:
>> Probably, it would be useful to have verbose output from lspci posted to
>> list as well.
>
> c3600 ~ $ lspci -v
> 00:0c.0 Ethernet controller: Digital Equipment Corporation DECchip
> 21142/43 (rev 41)
>          Subsystem: Hewlett-Packard Company DECchip 21142/43
>          Flags: bus master, medium devsel, latency 255, IRQ 17
>          I/O ports at 1000 [size=128]
>          Memory at fffffffff4008000 (32-bit, non-prefetchable) [size=1K]
>          Expansion ROM at fffffffff4040000 [disabled] [size=256K]
>          Kernel driver in use: tulip
> lspci: Unable to load libkmod resources: error -12
>
> 00:0d.0 Multimedia audio controller: Analog Devices Device 1889
>          Subsystem: Analog Devices Device 1889
>          Flags: bus master, medium devsel, latency 255, IRQ 18
>          Memory at fffffffff400c000 (32-bit, prefetchable) [size=512]
>          Memory at fffffffff400b000 (32-bit, prefetchable) [size=16]
>          Memory at fffffffff400a000 (32-bit, prefetchable) [size=16]
>          Memory at fffffffff4009000 (32-bit, prefetchable) [size=16]
>          Capabilities: [dc] Power Management version 1
>          Kernel driver in use: snd_ad1889
>
> 00:0e.0 IDE interface: National Semiconductor Corporation 87415/87560
> IDE (rev 03) (prog-if 8f [Master SecP SecO PriP PriO])
>          Flags: bus master, medium devsel, latency 255, IRQ 7
>          I/O ports at 0f00 [size=8]
>          I/O ports at 0e00 [size=4]
>          I/O ports at 0d00 [size=8]
>          I/O ports at 0b00 [size=4]
>          I/O ports at 0a00 [size=16]
>          Kernel driver in use: NS87415_IDE
>
> 00:0e.1 Bridge: National Semiconductor Corporation 87560 Legacy I/O (rev 01)
>          Flags: bus master, medium devsel, latency 255, IRQ 19
>          Kernel driver in use: SuperIO
>
> 00:0e.2 USB controller: National Semiconductor Corporation USB
> Controller (rev 02) (prog-if 10 [OHCI])
>          Flags: bus master, medium devsel, latency 240, IRQ 1
>          Memory at fffffffff4007000 (32-bit, non-prefetchable) [size=4K]
>          Memory at fffffffff4006000 (32-bit, non-prefetchable) [size=4K]
>          Kernel driver in use: ohci-pci
>
> 00:0f.0 SCSI storage controller: LSI Logic / Symbios Logic 53C896/897 (rev 07)
>          Subsystem: LSI Logic / Symbios Logic LSI53C896/7 PCI to Dual
> Channel Ultra2 SCSI Multifunction Controller
>          Flags: bus master, medium devsel, latency 255, IRQ 20
>          I/O ports at 0900 [size=256]
>          Memory at fffffffff4005000 (64-bit, non-prefetchable) [size=1K]
>          Memory at fffffffff4002000 (64-bit, non-prefetchable) [size=8K]
>          Capabilities: [40] Power Management version 2
>          Kernel driver in use: sym53c8xx
>
> 00:0f.1 SCSI storage controller: LSI Logic / Symbios Logic 53C896/897 (rev 07)
>          Subsystem: LSI Logic / Symbios Logic LSI53C896/7 PCI to Dual
> Channel Ultra2 SCSI Multifunction Controller
>          Flags: bus master, medium devsel, latency 255, IRQ 20
>          I/O ports at 0800 [size=256]
>          Memory at fffffffff4004000 (64-bit, non-prefetchable) [size=1K]
>          Memory at fffffffff4000000 (64-bit, non-prefetchable) [size=8K]
>          Capabilities: [40] Power Management version 2
>          Kernel driver in use: sym53c8xx
>
> 01:05.0 RAID bus controller: VIA Technologies, Inc. VT6421 IDE/SATA
> Controller (rev 50)
>          Subsystem: VIA Technologies, Inc. VT6421 IDE/SATA Controller
>          Flags: bus master, medium devsel, latency 240, IRQ 21
>          I/O ports at 12500 [size=16]
>          I/O ports at 12400 [size=16]
>          I/O ports at 12300 [size=16]
>          I/O ports at 12200 [size=16]
>          I/O ports at 12100 [size=32]
>          I/O ports at 12000 [size=256]
>          Expansion ROM at fffffffff4800000 [disabled] [size=64K]
>          Capabilities: [e0] Power Management version 2
>          Kernel driver in use: sata_via
>

The requesting device was 10/1/5/0.


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Xref: news.gmane.org gmane.linux.debian.ports.hppa:7703 gmane.linux.ports.parisc:28351
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* John David Anglin <dave.anglin@bell.net>:
> On 2018-03-17 7:36 AM, Helge Deller wrote:
> > Can you maybe try to localize where in the drivers/ata/sata_via.c driver
> > triggers the HPMC ?
> > 
> > 
> > --- arch/parisc/kernel/hpmc.S	2018-01-28 22:20:33.000000000 +0100
> > +++ arch/parisc/kernel/hpmc.S	2018-03-15 14:13:46.611969815 +0100
> > @@ -308,4 +290,5 @@
> >   	.align 4
> >   	.export os_hpmc_size
> >   os_hpmc_size:
> > -	.word .os_hpmc_end-.os_hpmc
> > +	/* .word .os_hpmc_end-.os_hpmc */
> > +	.word (.os_hpmc_end - .os_hpmc) * 4 /* sizeof(u32) */
> > 
> > This one seems wrong.
> > I think you just didn't hit a HPMC with your first patch, and as such
> > this patch has no influence...

> Helge, did you check that os_hpmc is correctly entered after you added
> the ".align 4" statement (e.g., trigger hpmc by accessing page 0 or
> such)? I looked at one of my builds and the size is correct as is.
> Is it possible that the length needs to be a multiple of 16? Current
> length is 0x194.

Good point. I changed that in the patch below.

> There are a couple of minor issues with assembly code. There are no .type
> and .size directives for os_hpmc_size.

Fixed as well.

> I think we should investigate further as I have never seen hpmc
> handler entered on rp3440 or c8000.  On rp3440, there are messages
> about the branch failing in the SL log. However, this might have been
> fixed by your alignment fix.

No, the problem still exists in existing code.

Below patch is build-tested only.


[PATCH] Fix HPMC handler by increasing size to multiple of 16 bytes

Make sure that the HPMC handler is 16-byte aligned and that it's length
in the IVT is a multiple of 16 bytes. Otherwise PDC may decide not
to jump to HPMC handler.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index 8d072c44f300..f09f54f8042e 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -84,6 +84,7 @@ END(hpmc_pim_data)
 	.text
 
 	.import intr_save, code
+	.align 16
 ENTRY_CFI(os_hpmc)
 .os_hpmc:
 
@@ -305,7 +306,9 @@ ENDPROC_CFI(os_hpmc)
 
 
 	__INITRODATA
+.globl os_hpmc_size
 	.align 4
-	.export os_hpmc_size
+	.type   os_hpmc_size, @object
+	.size   os_hpmc_size, 4
 os_hpmc_size:
 	.word .os_hpmc_end-.os_hpmc
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index c919e6c0a687..ca6e8722fffb 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -837,8 +837,8 @@ void __init initialize_ivt(const void *iva)
 		ivap[0] = instr;
 
 	/* Compute Checksum for HPMC handler */
-	length = os_hpmc_size;
-	ivap[7] = length;
+	length = ALIGN(os_hpmc_size, 16);
+	ivap[7] = length; /* length needs to be multiple of 16. */
 
 	hpmcp = (u32 *)os_hpmc;
 



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On 2018-03-19 6:23 PM, Helge Deller wrote:
> -	length = os_hpmc_size;
> -	ivap[7] = length;
> +	length = ALIGN(os_hpmc_size, 16);
> +	ivap[7] = length; /* length needs to be multiple of 16. */
If this is true, should we not add three nops to the end of os_hpmc so 
it has a length which is a multiple of 16?

Dave


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Sasha Levin <Alexander.Levin@microsoft.com> writes:

What is the justification for backporting this and the other similar
Documentation commits?

These commits just introduce a define _FIXME with value of 0, to
document that the userspace ABI was handled incorrectly long ago.

These commits do not fix anything.  Thes commits do not change anything
except a little how they are handled in siginfo_layout.  And I don't see
the changes that introduce siginfo_layout in kernel/signal.c being
backported.

Further these commits don't even have a fixes tag so I am curious
what is triggering them for backport.

Eric

> From: "Eric W. Biederman" <ebiederm@xmission.com>
>
> [ Upstream commit b5daf2b9d1c9a2b4f03ca93f75913ba2da3b3eaa ]
>
> Setting si_code to 0 results in a userspace seeing an si_code of 0.
> This is the same si_code as SI_USER.  Posix and common sense requires
> that SI_USER not be a signal specific si_code.  As such this use of 0
> for the si_code is a pretty horribly broken ABI.
>
> Further use of si_code == 0 guaranteed that copy_siginfo_to_user saw a
> value of __SI_KILL and now sees a value of SIL_KILL with the result
> that uid and pid fields are copied and which might copying the si_addr
> field by accident but certainly not by design.  Making this a very
> flakey implementation.
>
> Utilizing FPE_FIXME siginfo_layout will now return SIL_FAULT and the
> appropriate fields will reliably be copied.
>
> This bug is 13 years old and parsic machines are no longer being built
> so I don't know if it possible or worth fixing it.  But it is at least
> worth documenting this so other architectures don't make the same
> mistake.
>
> Possible ABI fixes includee:
>   - Send the signal without siginfo
>   - Don't generate a signal
>   - Possibly assign and use an appropriate si_code
>   - Don't handle cases which can't happen
>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: linux-parisc@vger.kernel.org
> Ref: 313c01d3e3fd ("[PATCH] PA-RISC update for 2.6.0")
> Histroy Tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git
> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
> ---
>  arch/parisc/include/uapi/asm/siginfo.h | 7 +++++++
>  arch/parisc/kernel/traps.c             | 2 +-
>  2 files changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/arch/parisc/include/uapi/asm/siginfo.h b/arch/parisc/include/uapi/asm/siginfo.h
> index 4a1062e05aaf..be40331f757d 100644
> --- a/arch/parisc/include/uapi/asm/siginfo.h
> +++ b/arch/parisc/include/uapi/asm/siginfo.h
> @@ -8,4 +8,11 @@
>  
>  #include <asm-generic/siginfo.h>
>  
> +/*
> + * SIGFPE si_codes
> + */
> +#ifdef __KERNEL__
> +#define FPE_FIXME	0	/* Broken dup of SI_USER */
> +#endif /* __KERNEL__ */
> +
>  #endif
> diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
> index 8453724b8009..c919e6c0a687 100644
> --- a/arch/parisc/kernel/traps.c
> +++ b/arch/parisc/kernel/traps.c
> @@ -629,7 +629,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
>  			si.si_signo = SIGFPE;
>  			/* Set to zero, and let the userspace app figure it out from
>  			   the insn pointed to by si_addr */
> -			si.si_code = 0;
> +			si.si_code = FPE_FIXME;
>  			si.si_addr = (void __user *) regs->iaoq[0];
>  			force_sig_info(SIGFPE, &si, current);
>  			return;


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From: Sasha Levin <Alexander.Levin@microsoft.com>
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Subject: Re: [PATCH AUTOSEL for 4.15 118/124] signal/parisc: Document a
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Date: Wed, 21 Mar 2018 18:18:44 +0000
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Xref: news.gmane.org gmane.linux.kernel.stable:272187 gmane.linux.kernel:2721761 gmane.linux.ports.parisc:28354
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.stable/272187>

Hey Eric,

On Tue, Mar 20, 2018 at 10:20:21AM -0500, Eric W. Biederman wrote:
>Sasha Levin <Alexander.Levin@microsoft.com> writes:
>
>What is the justification for backporting this and the other similar
>Documentation commits?

It was flagged as a bug fixing patch by a new process we're testing, and
when I looked at it I thought that the commit message suggests it fixes
an ABI issue.

>These commits just introduce a define _FIXME with value of 0, to
>document that the userspace ABI was handled incorrectly long ago.
>
>These commits do not fix anything.  Thes commits do not change anything
>except a little how they are handled in siginfo_layout.  And I don't see
>the changes that introduce siginfo_layout in kernel/signal.c being
>backported.
>
>Further these commits don't even have a fixes tag so I am curious
>what is triggering them for backport.

We're testing out a new mechanism where we train a neural network to
detect bug fixing patches and flag them for manual review. We're working
on a FAQ + more detailed information right now.

>Eric
>
>> From: "Eric W. Biederman" <ebiederm@xmission.com>
>>
>> [ Upstream commit b5daf2b9d1c9a2b4f03ca93f75913ba2da3b3eaa ]
>>
>> Setting si_code to 0 results in a userspace seeing an si_code of 0.
>> This is the same si_code as SI_USER.  Posix and common sense requires
>> that SI_USER not be a signal specific si_code.  As such this use of 0
>> for the si_code is a pretty horribly broken ABI.
>>
>> Further use of si_code =3D=3D 0 guaranteed that copy_siginfo_to_user saw=
 a
>> value of __SI_KILL and now sees a value of SIL_KILL with the result
>> that uid and pid fields are copied and which might copying the si_addr
>> field by accident but certainly not by design.  Making this a very
>> flakey implementation.
>>
>> Utilizing FPE_FIXME siginfo_layout will now return SIL_FAULT and the
>> appropriate fields will reliably be copied.
>>
>> This bug is 13 years old and parsic machines are no longer being built
>> so I don't know if it possible or worth fixing it.  But it is at least
>> worth documenting this so other architectures don't make the same
>> mistake.
>>
>> Possible ABI fixes includee:
>>   - Send the signal without siginfo
>>   - Don't generate a signal
>>   - Possibly assign and use an appropriate si_code
>>   - Don't handle cases which can't happen
>>
>> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
>> Cc: Helge Deller <deller@gmx.de>
>> Cc: linux-parisc@vger.kernel.org
>> Ref: 313c01d3e3fd ("[PATCH] PA-RISC update for 2.6.0")
>> Histroy Tree: https://na01.safelinks.protection.outlook.com/?url=3Dhttps=
%3A%2F%2Fgit.kernel.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Ftglx%2Fhistory=
.git&data=3D04%7C01%7CAlexander.Levin%40microsoft.com%7C3dfe7dd42625456fdb0=
f08d58e7639e6%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C1%7C6365715607897505=
33%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1h=
aWwifQ%3D%3D%7C-1&sdata=3DlXlraRxI0IHdS736PA%2BLO8A4JQJveGitz1pPfpo7QKM%3D&=
reserved=3D0
>> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
>> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
>> ---
>>  arch/parisc/include/uapi/asm/siginfo.h | 7 +++++++
>>  arch/parisc/kernel/traps.c             | 2 +-
>>  2 files changed, 8 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/parisc/include/uapi/asm/siginfo.h b/arch/parisc/includ=
e/uapi/asm/siginfo.h
>> index 4a1062e05aaf..be40331f757d 100644
>> --- a/arch/parisc/include/uapi/asm/siginfo.h
>> +++ b/arch/parisc/include/uapi/asm/siginfo.h
>> @@ -8,4 +8,11 @@
>>
>>  #include <asm-generic/siginfo.h>
>>
>> +/*
>> + * SIGFPE si_codes
>> + */
>> +#ifdef __KERNEL__
>> +#define FPE_FIXME	0	/* Broken dup of SI_USER */
>> +#endif /* __KERNEL__ */
>> +
>>  #endif
>> diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
>> index 8453724b8009..c919e6c0a687 100644
>> --- a/arch/parisc/kernel/traps.c
>> +++ b/arch/parisc/kernel/traps.c
>> @@ -629,7 +629,7 @@ void notrace handle_interruption(int code, struct pt=
_regs *regs)
>>  			si.si_signo =3D SIGFPE;
>>  			/* Set to zero, and let the userspace app figure it out from
>>  			   the insn pointed to by si_addr */
>> -			si.si_code =3D 0;
>> +			si.si_code =3D FPE_FIXME;
>>  			si.si_addr =3D (void __user *) regs->iaoq[0];
>>  			force_sig_info(SIGFPE, &si, current);
>>  			return;

--=20

Thanks,
Sasha=


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Subject: Re: [PATCH AUTOSEL for 4.15 118/124] signal/parisc: Document a conflict with SI_USER with SIGFPE
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Sasha Levin <Alexander.Levin@microsoft.com> writes:

> Hey Eric,
>
> On Tue, Mar 20, 2018 at 10:20:21AM -0500, Eric W. Biederman wrote:
>>Sasha Levin <Alexander.Levin@microsoft.com> writes:
>>
>>What is the justification for backporting this and the other similar
>>Documentation commits?
>
> It was flagged as a bug fixing patch by a new process we're testing, and
> when I looked at it I thought that the commit message suggests it fixes
> an ABI issue.

Unfortunately they just reveal an ABI issue.  I believe there are some
fixes coming but given that the issues are a decade old in many cases
actually fixing these things must be approach with care so as not to
create regressions.

>>These commits just introduce a define _FIXME with value of 0, to
>>document that the userspace ABI was handled incorrectly long ago.
>>
>>These commits do not fix anything.  Thes commits do not change anything
>>except a little how they are handled in siginfo_layout.  And I don't see
>>the changes that introduce siginfo_layout in kernel/signal.c being
>>backported.
>>
>>Further these commits don't even have a fixes tag so I am curious
>>what is triggering them for backport.
>
> We're testing out a new mechanism where we train a neural network to
> detect bug fixing patches and flag them for manual review. We're working
> on a FAQ + more detailed information right now.

The neural network did seem to pick up on something that is worth
looking at.

Eric


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Subject: Re: [PATCH AUTOSEL for 4.15 118/124] signal/parisc: Document a
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On Wed, Mar 21, 2018 at 02:49:25PM -0500, Eric W. Biederman wrote:
>Sasha Levin <Alexander.Levin@microsoft.com> writes:
>
>> Hey Eric,
>>
>> On Tue, Mar 20, 2018 at 10:20:21AM -0500, Eric W. Biederman wrote:
>>>Sasha Levin <Alexander.Levin@microsoft.com> writes:
>>>
>>>What is the justification for backporting this and the other similar
>>>Documentation commits?
>>
>> It was flagged as a bug fixing patch by a new process we're testing, and
>> when I looked at it I thought that the commit message suggests it fixes
>> an ABI issue.
>
>Unfortunately they just reveal an ABI issue.  I believe there are some
>fixes coming but given that the issues are a decade old in many cases
>actually fixing these things must be approach with care so as not to
>create regressions.

I've removed these commits.

>>>These commits just introduce a define _FIXME with value of 0, to
>>>document that the userspace ABI was handled incorrectly long ago.
>>>
>>>These commits do not fix anything.  Thes commits do not change anything
>>>except a little how they are handled in siginfo_layout.  And I don't see
>>>the changes that introduce siginfo_layout in kernel/signal.c being
>>>backported.
>>>
>>>Further these commits don't even have a fixes tag so I am curious
>>>what is triggering them for backport.
>>
>> We're testing out a new mechanism where we train a neural network to
>> detect bug fixing patches and flag them for manual review. We're working
>> on a FAQ + more detailed information right now.
>
>The neural network did seem to pick up on something that is worth
>looking at.

Indeed, and we use review input to retrain the NN on these commits.
Thank you!

--=20

Thanks,
Sasha=


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Subject: Re: [RFC PATCH v2 1/2] Randomization of address chosen by mmap.
Date: Thu, 22 Mar 2018 13:53:14 -0700
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On Thu, 22 Mar 2018 19:36:37 +0300 Ilya Smith <blackzert@gmail.com> wrote:

>  include/linux/mm.h |  16 ++++--
>  mm/mmap.c          | 164 +++++++++++++++++++++++++++++++++++++++++++++++++++++

You'll be wanting to update the documentation. 
Documentation/sysctl/kernel.txt and
Documentation/admin-guide/kernel-parameters.txt.

> ...
>
> @@ -2268,6 +2276,9 @@ extern unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info);
>  static inline unsigned long
>  vm_unmapped_area(struct vm_unmapped_area_info *info)
>  {
> +	/* How about 32 bit process?? */
> +	if ((current->flags & PF_RANDOMIZE) && randomize_va_space > 3)
> +		return unmapped_area_random(info);

The handling of randomize_va_space is peculiar.  Rather than being a
bitfield which independently selects different modes, it is treated as
a scalar: the larger the value, the more stuff we randomize.

I can see the sense in that (and I wonder what randomize_va_space=5
will do).  But it is...  odd.

Why did you select randomize_va_space=4 for this?  Is there a mode 3
already and we forgot to document it?  Or did you leave a gap for
something?  If the former, please feel free to fix the documentation
(in a separate, preceding patch) while you're in there ;)

>  	if (info->flags & VM_UNMAPPED_AREA_TOPDOWN)
>  		return unmapped_area_topdown(info);
>  	else
> @@ -2529,11 +2540,6 @@ int drop_caches_sysctl_handler(struct ctl_table *, int,
>  void drop_slab(void);
>  void drop_slab_node(int nid);
>  
>
> ...
>
> @@ -1780,6 +1781,169 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
>  	return error;
>  }
>  
> +unsigned long unmapped_area_random(struct vm_unmapped_area_info *info)
> +{

This function is just dead code if CONFIG_MMU=n, yes?  Let's add the
ifdefs to make it go away in that case.

> +	struct mm_struct *mm = current->mm;
> +	struct vm_area_struct *vma = NULL;
> +	struct vm_area_struct *visited_vma = NULL;
> +	unsigned long entropy[2];
> +	unsigned long length, low_limit, high_limit, gap_start, gap_end;
> +	unsigned long addr = 0;
> +
> +	/* get entropy with prng */
> +	prandom_bytes(&entropy, sizeof(entropy));
> +	/* small hack to prevent EPERM result */
> +	info->low_limit = max(info->low_limit, mmap_min_addr);
> +
>
> ...
>
> +found:
> +	/* We found a suitable gap. Clip it with the original high_limit. */
> +	if (gap_end > info->high_limit)
> +		gap_end = info->high_limit;
> +	gap_end -= info->length;
> +	gap_end -= (gap_end - info->align_offset) & info->align_mask;
> +	/* only one suitable page */
> +	if (gap_end ==  gap_start)
> +		return gap_start;
> +	addr = entropy[1] % (min((gap_end - gap_start) >> PAGE_SHIFT,
> +							 0x10000UL));

What does the magic 10000 mean?  Isn't a comment needed explaining this?

> +	addr = gap_end - (addr << PAGE_SHIFT);
> +	addr += (info->align_offset - addr) & info->align_mask;
> +	return addr;
> +}
>
> ...
>




From - Thu Nov 08 21:41:07 2018
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From: Andrew Morton <akpm@linux-foundation.org>
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Subject: Re: [RFC PATCH v2 2/2] Architecture defined limit on memory region
 random shift.
Date: Thu, 22 Mar 2018 13:54:48 -0700
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To: Ilya Smith <blackzert@gmail.com>
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Please add changelogs.  An explanation of what a "limit on memory
region random shift" is would be nice ;) Why does it exist, why are we
doing this, etc.  Surely there's something to be said - at present this
is just a lump of random code?





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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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To: Ilya Smith <blackzert@gmail.com>
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On Thu, 22 Mar 2018 19:36:36 +0300 Ilya Smith <blackzert@gmail.com> wrote:

> Current implementation doesn't randomize address returned by mmap.
> All the entropy ends with choosing mmap_base_addr at the process
> creation. After that mmap build very predictable layout of address
> space. It allows to bypass ASLR in many cases.

Perhaps some more effort on the problem description would help.  *Are*
people predicting layouts at present?  What problems does this cause? 
How are they doing this and are there other approaches to solving the
problem?

Mainly: what value does this patchset have to our users?  This reader
is unable to determine that from the information which you have
provided.  Full details, please.



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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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To: Ilya Smith <blackzert@gmail.com>
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On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
> Current implementation doesn't randomize address returned by mmap.
> All the entropy ends with choosing mmap_base_addr at the process
> creation. After that mmap build very predictable layout of address
> space. It allows to bypass ASLR in many cases. This patch make
> randomization of address on any mmap call.

Why should this be done in the kernel rather than libc?  libc is perfectly
capable of specifying random numbers in the first argument of mmap.

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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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To: Andrew Morton <akpm@linux-foundation.org>
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Hello, Andrew

Thanks for reading this patch.

> On 22 Mar 2018, at 23:57, Andrew Morton <akpm@linux-foundation.org> =
wrote:
>=20
> On Thu, 22 Mar 2018 19:36:36 +0300 Ilya Smith <blackzert@gmail.com> =
wrote:
>=20
>> Current implementation doesn't randomize address returned by mmap.
>> All the entropy ends with choosing mmap_base_addr at the process
>> creation. After that mmap build very predictable layout of address
>> space. It allows to bypass ASLR in many cases.
>=20
> Perhaps some more effort on the problem description would help.  *Are*
> people predicting layouts at present?  What problems does this cause?=20=

> How are they doing this and are there other approaches to solving the
> problem?
>=20
Sorry, I=E2=80=99ve lost it in first version. In short - memory layout =
could be easily=20
repaired by single leakage. Also any Out of Bounds error may easily be=20=

exploited according to current implementation. All because mmap choose =
address=20
just before previously allocated segment. You can read more about it =
here:=20
http://www.openwall.com/lists/oss-security/2018/02/27/5
Some test are available here https://github.com/blackzert/aslur.=20
To solve the problem Kernel should randomize address on any mmap so
attacker could never easily gain needed addresses.

> Mainly: what value does this patchset have to our users?  This reader
> is unable to determine that from the information which you have
> provided.  Full details, please.

The value of this patch is to decrease successful rate of exploitation
vulnerable applications.These could be either remote or local vectors.



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Subject: Re: [RFC PATCH v2 1/2] Randomization of address chosen by mmap.
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To: Andrew Morton <akpm@linux-foundation.org>
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> On 22 Mar 2018, at 23:53, Andrew Morton <akpm@linux-foundation.org> =
wrote:
>=20
> On Thu, 22 Mar 2018 19:36:37 +0300 Ilya Smith <blackzert@gmail.com> =
wrote:
>=20
>> include/linux/mm.h |  16 ++++--
>> mm/mmap.c          | 164 =
+++++++++++++++++++++++++++++++++++++++++++++++++++++
>=20
> You'll be wanting to update the documentation.=20
> Documentation/sysctl/kernel.txt and
> Documentation/admin-guide/kernel-parameters.txt.
>=20

Sure, thanks for pointing there. I will add few lines there after =
discussion them
here.

>> ...
>>=20
>> @@ -2268,6 +2276,9 @@ extern unsigned long =
unmapped_area_topdown(struct vm_unmapped_area_info *info);
>> static inline unsigned long
>> vm_unmapped_area(struct vm_unmapped_area_info *info)
>> {
>> +	/* How about 32 bit process?? */
>> +	if ((current->flags & PF_RANDOMIZE) && randomize_va_space > 3)
>> +		return unmapped_area_random(info);
>=20
> The handling of randomize_va_space is peculiar.  Rather than being a
> bitfield which independently selects different modes, it is treated as
> a scalar: the larger the value, the more stuff we randomize.
>=20
> I can see the sense in that (and I wonder what randomize_va_space=3D5
> will do).  But it is...  odd.
>=20
> Why did you select randomize_va_space=3D4 for this?  Is there a mode 3
> already and we forgot to document it?  Or did you leave a gap for
> something?  If the former, please feel free to fix the documentation
> (in a separate, preceding patch) while you're in there ;)
>=20

Yes, I was not sure about correct value so leaved some gap for future. =
Also
according to current implementation this value used like a scalar. But =
I=E2=80=99m
agree bitfield looks more flexible for the future. I think right now I =
can leave
3 as value for my patch and it could be fixed any time in the future. =
What
do you think about it?

>> 	if (info->flags & VM_UNMAPPED_AREA_TOPDOWN)
>> 		return unmapped_area_topdown(info);
>> 	else
>> @@ -2529,11 +2540,6 @@ int drop_caches_sysctl_handler(struct =
ctl_table *, int,
>> void drop_slab(void);
>> void drop_slab_node(int nid);
>>=20
>>=20
>> ...
>>=20
>> @@ -1780,6 +1781,169 @@ unsigned long mmap_region(struct file *file, =
unsigned long addr,
>> 	return error;
>> }
>>=20
>> +unsigned long unmapped_area_random(struct vm_unmapped_area_info =
*info)
>> +{
>=20
> This function is just dead code if CONFIG_MMU=3Dn, yes?  Let's add the
> ifdefs to make it go away in that case.
>=20

Thanks, I missed that case. I will fix it.

>> +	struct mm_struct *mm =3D current->mm;
>> +	struct vm_area_struct *vma =3D NULL;
>> +	struct vm_area_struct *visited_vma =3D NULL;
>> +	unsigned long entropy[2];
>> +	unsigned long length, low_limit, high_limit, gap_start, gap_end;
>> +	unsigned long addr =3D 0;
>> +
>> +	/* get entropy with prng */
>> +	prandom_bytes(&entropy, sizeof(entropy));
>> +	/* small hack to prevent EPERM result */
>> +	info->low_limit =3D max(info->low_limit, mmap_min_addr);
>> +
>>=20
>> ...
>>=20
>> +found:
>> +	/* We found a suitable gap. Clip it with the original =
high_limit. */
>> +	if (gap_end > info->high_limit)
>> +		gap_end =3D info->high_limit;
>> +	gap_end -=3D info->length;
>> +	gap_end -=3D (gap_end - info->align_offset) & info->align_mask;
>> +	/* only one suitable page */
>> +	if (gap_end =3D=3D  gap_start)
>> +		return gap_start;
>> +	addr =3D entropy[1] % (min((gap_end - gap_start) >> PAGE_SHIFT,
>> +							 0x10000UL));
>=20
> What does the magic 10000 mean?  Isn't a comment needed explaining =
this?
>=20
>> +	addr =3D gap_end - (addr << PAGE_SHIFT);
>> +	addr +=3D (info->align_offset - addr) & info->align_mask;
>> +	return addr;
>> +}
>>=20
>> ...
>>=20
>=20

This one what I fix by next patch. I was trying to make patches separate =
to make
it easier to understand them. This constant came from last version =
discussion=20
and honestly doesn=E2=80=99t means much. I replaced it with Architecture =
depended limit
that as I plan would be CONFIG value as well.

This value means maximum number of pages we can move away from the next
vma. The less value means less security but less memory fragmentation. =
Any way
on 64bit systems memory fragmentation is not such a big problem.



From - Thu Nov 08 21:41:07 2018
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Subject: Re: [RFC PATCH v2 2/2] Architecture defined limit on memory region
 random shift.
Date: Fri, 23 Mar 2018 20:49:03 +0300
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To: Andrew Morton <akpm@linux-foundation.org>
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> On 22 Mar 2018, at 23:54, Andrew Morton <akpm@linux-foundation.org> wrote:
> 
> 
> Please add changelogs.  An explanation of what a "limit on memory
> region random shift" is would be nice ;) Why does it exist, why are we
> doing this, etc.  Surely there's something to be said - at present this
> is just a lump of random code?
> 
> 
> 
Sorry, my bad. The main idea of this limit is to decrease possible memory 
fragmentation. This is not so big problem on 64bit process, but really big for 
32 bit processes since may cause failure memory allocation. To control memory 
fragmentation and protect 32 bit systems (or architectures) this limit was 
introduce by this patch. It could be also moved to CONFIG_ as well.

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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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> On 23 Mar 2018, at 15:48, Matthew Wilcox <willy@infradead.org> wrote:
>=20
> On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
>> Current implementation doesn't randomize address returned by mmap.
>> All the entropy ends with choosing mmap_base_addr at the process
>> creation. After that mmap build very predictable layout of address
>> space. It allows to bypass ASLR in many cases. This patch make
>> randomization of address on any mmap call.
>=20
> Why should this be done in the kernel rather than libc?  libc is =
perfectly
> capable of specifying random numbers in the first argument of mmap.
Well, there is following reasons:
1. It should be done in any libc implementation, what is not possible =
IMO;
2. User mode is not that layer which should be responsible for choosing
random address or handling entropy;
3. Memory fragmentation is unpredictable in this case

Off course user mode could use random =E2=80=98hint=E2=80=99 address, =
but kernel may
discard this address if it is occupied for example and allocate just =
before
closest vma. So this solution doesn=E2=80=99t give that much security =
like=20
randomization address inside kernel.=


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Subject: Re: [RFC PATCH v2 2/2] Architecture defined limit on memory region
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> On 22 Mar 2018, at 23:54, Andrew Morton <akpm@linux-foundation.org> =
wrote:
>=20
>=20
> Please add changelogs.  An explanation of what a "limit on memory
> region random shift" is would be nice ;) Why does it exist, why are we
> doing this, etc.  Surely there's something to be said - at present =
this
> is just a lump of random code?
>=20
Sorry, my bad. The main idea of this limit is to decrease possible =
memory
fragmentation. This is not so big problem on 64bit process, but really =
big for
32 bit processes since may cause failure memory allocation. To control =
memory
fragmentation and protect 32 bit systems (or architectures) this limit =
was
introduce by this patch. It could be also moved to CONFIG_ as well.



--Apple-Mail=_302D41D8-B8D8-4A57-A90C-AE132EC44462
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charset=us-ascii

<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D""><br =
class=3D""><div><blockquote type=3D"cite" class=3D""><div class=3D"">On =
22 Mar 2018, at 23:54, Andrew Morton &lt;<a =
href=3D"mailto:akpm@linux-foundation.org" =
class=3D"">akpm@linux-foundation.org</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div class=3D""><br =
class=3D"">Please add changelogs. &nbsp;An explanation of what a "limit =
on memory<br class=3D"">region random shift" is would be nice ;) Why =
does it exist, why are we<br class=3D"">doing this, etc. &nbsp;Surely =
there's something to be said - at present this<br class=3D"">is just a =
lump of random code?<br class=3D""><br =
class=3D""></div></div></blockquote><div style=3D"margin: 0px; =
font-stretch: normal; font-size: 11px; line-height: normal; font-family: =
Menlo; background-color: rgb(255, 255, 255);" class=3D""><span =
style=3D"font-variant-ligatures: no-common-ligatures" class=3D"">Sorry, =
my bad. The main idea of this limit is to decrease possible =
memory&nbsp;</span></div><div style=3D"margin: 0px; font-stretch: =
normal; font-size: 11px; line-height: normal; font-family: Menlo; =
background-color: rgb(255, 255, 255);" class=3D""><span =
style=3D"font-variant-ligatures: no-common-ligatures" =
class=3D"">fragmentation. This is not so big problem on 64bit process, =
but really big for&nbsp;</span></div><div style=3D"margin: 0px; =
font-stretch: normal; font-size: 11px; line-height: normal; font-family: =
Menlo; background-color: rgb(255, 255, 255);" class=3D""><span =
style=3D"font-variant-ligatures: no-common-ligatures" class=3D"">32 bit =
processes since may cause failure memory allocation. To control =
memory&nbsp;</span></div><div style=3D"margin: 0px; font-stretch: =
normal; font-size: 11px; line-height: normal; font-family: Menlo; =
background-color: rgb(255, 255, 255);" class=3D""><span =
style=3D"font-variant-ligatures: no-common-ligatures" =
class=3D"">fragmentation and protect 32 bit systems (or architectures) =
this limit was&nbsp;</span></div><div style=3D"margin: 0px; =
font-stretch: normal; font-size: 11px; line-height: normal; font-family: =
Menlo; background-color: rgb(255, 255, 255);" class=3D""><span =
style=3D"font-variant-ligatures: no-common-ligatures" class=3D"">introduce=
 by this patch. It could be also moved to CONFIG_ as =
well.</span></div><div style=3D"margin: 0px; font-stretch: normal; =
font-size: 11px; line-height: normal; font-family: Menlo; =
background-color: rgb(255, 255, 255);" class=3D""><span =
style=3D"font-variant-ligatures: no-common-ligatures" class=3D""><br =
class=3D""></span></div><div style=3D"margin: 0px; font-stretch: normal; =
font-size: 11px; line-height: normal; font-family: Menlo; =
background-color: rgb(255, 255, 255);" class=3D""><span =
style=3D"font-variant-ligatures: no-common-ligatures" class=3D""><br =
class=3D""></span></div></div></body></html>=

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From - Thu Nov 08 21:41:07 2018
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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
Date: Fri, 23 Mar 2018 14:00:24 -0400
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To: Matthew Wilcox <willy@infradead.org>
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On Fri, Mar 23, 2018 at 05:48:06AM -0700, Matthew Wilcox wrote:
> On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
> > Current implementation doesn't randomize address returned by mmap.
> > All the entropy ends with choosing mmap_base_addr at the process
> > creation. After that mmap build very predictable layout of address
> > space. It allows to bypass ASLR in many cases. This patch make
> > randomization of address on any mmap call.
> 
> Why should this be done in the kernel rather than libc?  libc is perfectly
> capable of specifying random numbers in the first argument of mmap.

Generally libc does not have a view of the current vm maps, and thus
in passing "random numbers", they would have to be uniform across the
whole vm space and thus non-uniform once the kernel rounds up to avoid
existing mappings. Also this would impose requirements that libc be
aware of the kernel's use of the virtual address space and what's
available to userspace -- for example, on 32-bit archs whether 2GB,
3GB, or full 4GB (for 32-bit-user-on-64-bit-kernel) is available, and
on 64-bit archs where fewer than the full 64 bits are actually valid
in addresses, what the actual usable pointer size is. There is
currently no clean way of conveying this information to userspace.

Rich


From - Thu Nov 08 21:41:07 2018
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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
Date: Fri, 23 Mar 2018 12:06:18 -0700
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To: Rich Felker <dalias@libc.org>
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On Fri, Mar 23, 2018 at 02:00:24PM -0400, Rich Felker wrote:
> On Fri, Mar 23, 2018 at 05:48:06AM -0700, Matthew Wilcox wrote:
> > On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
> > > Current implementation doesn't randomize address returned by mmap.
> > > All the entropy ends with choosing mmap_base_addr at the process
> > > creation. After that mmap build very predictable layout of address
> > > space. It allows to bypass ASLR in many cases. This patch make
> > > randomization of address on any mmap call.
> > 
> > Why should this be done in the kernel rather than libc?  libc is perfectly
> > capable of specifying random numbers in the first argument of mmap.
> 
> Generally libc does not have a view of the current vm maps, and thus
> in passing "random numbers", they would have to be uniform across the
> whole vm space and thus non-uniform once the kernel rounds up to avoid
> existing mappings.

I'm aware that you're the musl author, but glibc somehow manages to
provide etext, edata and end, demonstrating that it does know where at
least some of the memory map lies.  Virtually everything after that is
brought into the address space via mmap, which at least glibc intercepts,
so it's entirely possible for a security-conscious libc to know where
other things are in the memory map.  Not to mention that what we're
primarily talking about here are libraries which are dynamically linked
and are loaded by ld.so before calling main(); not dlopen() or even
regular user mmaps.

> Also this would impose requirements that libc be
> aware of the kernel's use of the virtual address space and what's
> available to userspace -- for example, on 32-bit archs whether 2GB,
> 3GB, or full 4GB (for 32-bit-user-on-64-bit-kernel) is available, and
> on 64-bit archs where fewer than the full 64 bits are actually valid
> in addresses, what the actual usable pointer size is. There is
> currently no clean way of conveying this information to userspace.

Huh, I thought libc was aware of this.  Also, I'd expect a libc-based
implementation to restrict itself to, eg, only loading libraries in
the bottom 1GB to avoid applications who want to map huge things from
running out of unfragmented address space.

From - Thu Nov 08 21:41:08 2018
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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
Date: Fri, 23 Mar 2018 15:16:21 -0400
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To: Matthew Wilcox <willy@infradead.org>
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On Fri, Mar 23, 2018 at 12:06:18PM -0700, Matthew Wilcox wrote:
> On Fri, Mar 23, 2018 at 02:00:24PM -0400, Rich Felker wrote:
> > On Fri, Mar 23, 2018 at 05:48:06AM -0700, Matthew Wilcox wrote:
> > > On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
> > > > Current implementation doesn't randomize address returned by mmap.
> > > > All the entropy ends with choosing mmap_base_addr at the process
> > > > creation. After that mmap build very predictable layout of address
> > > > space. It allows to bypass ASLR in many cases. This patch make
> > > > randomization of address on any mmap call.
> > > 
> > > Why should this be done in the kernel rather than libc?  libc is perfectly
> > > capable of specifying random numbers in the first argument of mmap.
> > 
> > Generally libc does not have a view of the current vm maps, and thus
> > in passing "random numbers", they would have to be uniform across the
> > whole vm space and thus non-uniform once the kernel rounds up to avoid
> > existing mappings.
> 
> I'm aware that you're the musl author, but glibc somehow manages to
> provide etext, edata and end, demonstrating that it does know where at
> least some of the memory map lies.

Yes, but that's pretty minimal info.

> Virtually everything after that is
> brought into the address space via mmap, which at least glibc intercepts,

There's also vdso, the program interpreter (ldso), and theoretically
other things the kernel might add. I agree you _could_ track most of
this (and all if you want to open /proc/self/maps), but it seems
hackish and wrong (violating clean boundaries between userspace and
kernel responsibility).

> > Also this would impose requirements that libc be
> > aware of the kernel's use of the virtual address space and what's
> > available to userspace -- for example, on 32-bit archs whether 2GB,
> > 3GB, or full 4GB (for 32-bit-user-on-64-bit-kernel) is available, and
> > on 64-bit archs where fewer than the full 64 bits are actually valid
> > in addresses, what the actual usable pointer size is. There is
> > currently no clean way of conveying this information to userspace.
> 
> Huh, I thought libc was aware of this.  Also, I'd expect a libc-based
> implementation to restrict itself to, eg, only loading libraries in
> the bottom 1GB to avoid applications who want to map huge things from
> running out of unfragmented address space.

That seems like a rather arbitrary expectation and I'm not sure why
you'd expect it to result in less fragmentation rather than more. For
example if it started from 1GB and worked down, you'd immediately
reduce the contiguous free space from ~3GB to ~2GB, and if it started
from the bottom and worked up, brk would immediately become
unavailable, increasing mmap pressure elsewhere.

Rich


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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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To: Rich Felker <dalias@libc.org>
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On Fri, Mar 23, 2018 at 03:16:21PM -0400, Rich Felker wrote:
> > Huh, I thought libc was aware of this.  Also, I'd expect a libc-based
> > implementation to restrict itself to, eg, only loading libraries in
> > the bottom 1GB to avoid applications who want to map huge things from
> > running out of unfragmented address space.
> 
> That seems like a rather arbitrary expectation and I'm not sure why
> you'd expect it to result in less fragmentation rather than more. For
> example if it started from 1GB and worked down, you'd immediately
> reduce the contiguous free space from ~3GB to ~2GB, and if it started
> from the bottom and worked up, brk would immediately become
> unavailable, increasing mmap pressure elsewhere.

By *not* limiting yourself to the bottom 1GB, you'll almost immediately
fragment the address space even worse.  Just looking at 'ls' as a
hopefully-good example of a typical app, it maps:

	linux-vdso.so.1 (0x00007ffef5eef000)
	libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007fb3657f5000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fb36543b000)
	libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007fb3651c9000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fb364fc5000)
	/lib64/ld-linux-x86-64.so.2 (0x00007fb365c3f000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fb364da7000)

The VDSO wouldn't move, but look at the distribution of mapping 6 things
into a 3GB address space in random locations.  What are the odds you have
a contiguous 1GB chunk of address space?  If you restrict yourself to the
bottom 1GB before running out of room and falling back to a sequential
allocation, you'll prevent a lot of fragmentation.

From - Thu Nov 08 21:41:08 2018
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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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To: Matthew Wilcox <willy@infradead.org>
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On Fri, Mar 23, 2018 at 12:29:52PM -0700, Matthew Wilcox wrote:
> On Fri, Mar 23, 2018 at 03:16:21PM -0400, Rich Felker wrote:
> > > Huh, I thought libc was aware of this.  Also, I'd expect a libc-based
> > > implementation to restrict itself to, eg, only loading libraries in
> > > the bottom 1GB to avoid applications who want to map huge things from
> > > running out of unfragmented address space.
> > 
> > That seems like a rather arbitrary expectation and I'm not sure why
> > you'd expect it to result in less fragmentation rather than more. For
> > example if it started from 1GB and worked down, you'd immediately
> > reduce the contiguous free space from ~3GB to ~2GB, and if it started
> > from the bottom and worked up, brk would immediately become
> > unavailable, increasing mmap pressure elsewhere.
> 
> By *not* limiting yourself to the bottom 1GB, you'll almost immediately
> fragment the address space even worse.  Just looking at 'ls' as a
> hopefully-good example of a typical app, it maps:
> 
> 	linux-vdso.so.1 (0x00007ffef5eef000)
> 	libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007fb3657f5000)
> 	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fb36543b000)
> 	libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007fb3651c9000)
> 	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fb364fc5000)
> 	/lib64/ld-linux-x86-64.so.2 (0x00007fb365c3f000)
> 	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fb364da7000)
> 
> The VDSO wouldn't move, but look at the distribution of mapping 6 things
> into a 3GB address space in random locations.  What are the odds you have
> a contiguous 1GB chunk of address space?  If you restrict yourself to the
> bottom 1GB before running out of room and falling back to a sequential
> allocation, you'll prevent a lot of fragmentation.

Oh, you're talking about "with random locations" case. Randomizing
each map just hopelessly fragments things no matter what you do on
32-bit. If you reduce the space over which you randomize to the point
where it's not fragmenting/killing your available vm space, there are
so few degrees of freedom left that it's trivial to brute-force. Maybe
"libs randomized in low 1GB, everything else near-sequential in high
addresses" works half decently, but I have a hard time believing you
can get any ASLR that's significantly better than snake oil in a
32-bit address space, and you certainly do pay a high price in total
available vm space.

Rich


From - Thu Nov 08 21:41:08 2018
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Subject: [PATCH 00/16] Generic infrastructure for unloading initramfs
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This patch series extracts out code for unloading the initramfs that
was identical across 14 architectures, and moves those architectures
to the common code path. Additionally, RISC-V is newly moved to the
common code path.

In addition to reducing duplication, this allows us to bring future
improvements (such as generalizing existing "keep initrd" command line
options) to multiple architectures at once.



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Subject: [PATCH 01/16] initrd: Add generic code path for common initrd unloading logic.
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2724512>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 init/initramfs.c | 7 +++++++
 usr/Kconfig      | 4 ++++
 2 files changed, 11 insertions(+)

diff --git a/init/initramfs.c b/init/initramfs.c
index 7e99a0038942..de5ce873eb5a 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -526,6 +526,13 @@ extern unsigned long __initramfs_size;
 #include <linux/initrd.h>
 #include <linux/kexec.h>
 
+#ifdef CONFIG_INITRAMFS_GENERIC_UNLOAD
+void free_initrd_mem(unsigned long start, unsigned long end)
+{
+       free_reserved_area((void *)start, (void *)end, -1, "initrd");
+}
+#endif
+
 static void __init free_initrd(void)
 {
 #ifdef CONFIG_KEXEC_CORE
diff --git a/usr/Kconfig b/usr/Kconfig
index 43658b8a975e..fd79d4d6fa26 100644
--- a/usr/Kconfig
+++ b/usr/Kconfig
@@ -233,3 +233,7 @@ config INITRAMFS_COMPRESSION
 	default ".lzma" if RD_LZMA
 	default ".bz2"  if RD_BZIP2
 	default ""
+
+# Arches can select this for a generic initrd unloading codepath
+config INITRAMFS_GENERIC_UNLOAD
+	bool
-- 
2.16.2



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Subject: [PATCH 02/16] riscv: Use INITRAMFS_GENERIC_UNLOAD.
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/riscv/Kconfig   | 1 +
 arch/riscv/mm/init.c | 6 ------
 2 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index c22ebe08e902..ab1b4cee84fc 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -37,6 +37,7 @@ config RISCV
 	select THREAD_INFO_IN_TASK
 	select RISCV_TIMER
 	select GENERIC_IRQ_MULTI_HANDLER
+	select INITRAMFS_GENERIC_UNLOAD
 
 config MMU
 	def_bool y
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index c77df8142be2..36f83fe8a726 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -62,9 +62,3 @@ void free_initmem(void)
 {
 	free_initmem_default(0);
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-}
-#endif /* CONFIG_BLK_DEV_INITRD */
-- 
2.16.2



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Subject: [PATCH 05/16] c6x: Use INITRAMFS_GENERIC_UNLOAD
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/c6x/Kconfig   | 1 +
 arch/c6x/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index c6b4dd1418b4..857f95f9a6a4 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -19,6 +19,7 @@ config C6X
 	select GENERIC_CLOCKEVENTS
 	select MODULES_USE_ELF_RELA
 	select ARCH_NO_COHERENT_DMA_MMAP
+	select INITRAMFS_GENERIC_UNLOAD
 
 config MMU
 	def_bool n
diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c
index 4cc72b0d1c1d..a11cb657182a 100644
--- a/arch/c6x/mm/init.c
+++ b/arch/c6x/mm/init.c
@@ -66,13 +66,6 @@ void __init mem_init(void)
 	mem_init_print_info(NULL);
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void __init free_initmem(void)
 {
 	free_initmem_default(-1);
-- 
2.16.2



From - Thu Nov 08 21:41:08 2018
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Subject: [PATCH 08/16] m32r: Use INITRAMFS_GENERIC_UNLOAD
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/m32r/Kconfig   |  1 +
 arch/m32r/mm/init.c | 11 -----------
 2 files changed, 1 insertion(+), 11 deletions(-)

diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index dd84ee194579..010a2b999181 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -21,6 +21,7 @@ config M32R
 	select CPU_NO_EFFICIENT_FFS
 	select DMA_DIRECT_OPS
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
+	select INITRAMFS_GENERIC_UNLOAD
 
 config SBUS
 	bool
diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c
index 93abc8c3a46e..e2b5f09209ee 100644
--- a/arch/m32r/mm/init.c
+++ b/arch/m32r/mm/init.c
@@ -139,14 +139,3 @@ void free_initmem(void)
 {
 	free_initmem_default(-1);
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-/*======================================================================*
- * free_initrd_mem() :
- * orig : arch/sh/mm/init.c
- *======================================================================*/
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-- 
2.16.2



From - Thu Nov 08 21:41:08 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 09/16] m68k: Use INITRAMFS_GENERIC_UNLOAD
Date: Sat, 24 Mar 2018 13:44:51 -0400
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2724516>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/m68k/Kconfig   | 1 +
 arch/m68k/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 785612b576f7..47913a68529e 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -24,6 +24,7 @@ config M68K
 	select MODULES_USE_ELF_RELA
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
+	select INITRAMFS_GENERIC_UNLOAD
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
index e85acd131fa8..e20bef09258c 100644
--- a/arch/m68k/mm/init.c
+++ b/arch/m68k/mm/init.c
@@ -172,10 +172,3 @@ void __init mem_init(void)
 	mem_init_print_info(NULL);
 	print_memmap();
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-- 
2.16.2



From - Thu Nov 08 21:41:08 2018
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Subject: [PATCH 03/16] alpha: Use INITRAMFS_GENERIC_UNLOAD
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Xref: news.gmane.org gmane.linux.kernel.arc:3633 gmane.linux.ports.alpha:4843 gmane.linux.kernel:2724517 gmane.linux.ports.parisc:28377 gmane.linux.ports.ppc64.devel:154996 gmane.linux.ports.sh.devel:56700 gmane.linux.uml.devel:16674
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3633>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/alpha/Kconfig   | 1 +
 arch/alpha/mm/init.c | 8 --------
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index e96adcbcab41..238d743ae8f2 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -27,6 +27,7 @@ config ALPHA
 	select ODD_RT_SIGACTION
 	select OLD_SIGSUSPEND
 	select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
+	select INITRAMFS_GENERIC_UNLOAD
 	help
 	  The Alpha is a 64-bit general-purpose processor designed and
 	  marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
index 9d74520298ab..55f7c8efa962 100644
--- a/arch/alpha/mm/init.c
+++ b/arch/alpha/mm/init.c
@@ -291,11 +291,3 @@ free_initmem(void)
 {
 	free_initmem_default(-1);
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void
-free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-- 
2.16.2

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Subject: [PATCH 04/16] arc: Use INITRAMFS_GENERIC_UNLOAD
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3634>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/arc/Kconfig   | 1 +
 arch/arc/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index d76bf4a83740..2844ce5b910c 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -44,6 +44,7 @@ config ARC
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_LZMA
+	select INITRAMFS_GENERIC_UNLOAD
 
 config MIGHT_HAVE_PCI
 	bool
diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index ba145065c579..7bcf23ab1756 100644
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -229,10 +229,3 @@ void __ref free_initmem(void)
 {
 	free_initmem_default(-1);
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-- 
2.16.2

From - Thu Nov 08 21:41:08 2018
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Subject: [PATCH 11/16] nios2: Use INITRAMFS_GENERIC_UNLOAD
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2724519>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/nios2/Kconfig   | 1 +
 arch/nios2/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 3d4ec88f1db1..d3b72d5c8967 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -19,6 +19,7 @@ config NIOS2
 	select SPARSE_IRQ
 	select USB_ARCH_HAS_HCD if USB_SUPPORT
 	select CPU_NO_EFFICIENT_FFS
+	select INITRAMFS_GENERIC_UNLOAD
 
 config GENERIC_CSUM
 	def_bool y
diff --git a/arch/nios2/mm/init.c b/arch/nios2/mm/init.c
index c92fe4234009..3df75ff8c768 100644
--- a/arch/nios2/mm/init.c
+++ b/arch/nios2/mm/init.c
@@ -82,13 +82,6 @@ void __init mmu_init(void)
 	flush_tlb_all();
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void __ref free_initmem(void)
 {
 	free_initmem_default(-1);
-- 
2.16.2



From - Thu Nov 08 21:41:08 2018
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From: Shea Levy <shea@shealevy.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uml.devel
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3636>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/frv/Kconfig   |  1 +
 arch/frv/mm/init.c | 11 -----------
 2 files changed, 1 insertion(+), 11 deletions(-)

diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index af369b05fed5..5c104b800cb1 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -17,6 +17,7 @@ config FRV
 	select OLD_SIGACTION
 	select HAVE_DEBUG_STACKOVERFLOW
 	select ARCH_NO_COHERENT_DMA_MMAP
+	select INITRAMFS_GENERIC_UNLOAD
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c
index cf464100e838..345edc4dc462 100644
--- a/arch/frv/mm/init.c
+++ b/arch/frv/mm/init.c
@@ -131,14 +131,3 @@ void free_initmem(void)
 	free_initmem_default(-1);
 #endif
 } /* end free_initmem() */
-
-/*****************************************************************************/
-/*
- * free the initial ramdisk memory
- */
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-} /* end free_initrd_mem() */
-#endif
-- 
2.16.2

From - Thu Nov 08 21:41:08 2018
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Subject: [PATCH 13/16] parisc: Use INITRAMFS_GENERIC_UNLOAD
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/parisc/Kconfig   | 1 +
 arch/parisc/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 9792d8cf4f56..7410c2094987 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -51,6 +51,7 @@ config PARISC
 	select GENERIC_CLOCKEVENTS
 	select ARCH_NO_COHERENT_DMA_MMAP
 	select CPU_NO_EFFICIENT_FFS
+	select INITRAMFS_GENERIC_UNLOAD
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index cab32ee824d2..3643399230f3 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -932,10 +932,3 @@ void flush_tlb_all(void)
 	spin_unlock(&sid_lock);
 }
 #endif
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-- 
2.16.2



From - Thu Nov 08 21:41:09 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 07/16] h8300: Use INITRAMFS_GENERIC_UNLOAD
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3638>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/h8300/Kconfig   | 1 +
 arch/h8300/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 091d6d04b5e5..58c9b6b1df16 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -24,6 +24,7 @@ config H8300
 	select HAVE_ARCH_HASH
 	select CPU_NO_EFFICIENT_FFS
 	select DMA_DIRECT_OPS
+	select INITRAMFS_GENERIC_UNLOAD
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
index 015287ac8ce8..37574332b202 100644
--- a/arch/h8300/mm/init.c
+++ b/arch/h8300/mm/init.c
@@ -102,13 +102,6 @@ void __init mem_init(void)
 }
 
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void
 free_initmem(void)
 {
-- 
2.16.2

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Subject: [PATCH 10/16] microblaze: Use INITRAMFS_GENERIC_UNLOAD
Date: Sat, 24 Mar 2018 13:44:52 -0400
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/microblaze/Kconfig   | 1 +
 arch/microblaze/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 3817a3e2146c..ef23e8410b4b 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -36,6 +36,7 @@ config MICROBLAZE
 	select TRACING_SUPPORT
 	select VIRT_TO_BUS
 	select CPU_NO_EFFICIENT_FFS
+	select INITRAMFS_GENERIC_UNLOAD
 
 # Endianness selection
 choice
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index df6de7ccdc2e..ea058dfda222 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -187,13 +187,6 @@ void __init setup_memory(void)
 	paging_init();
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void free_initmem(void)
 {
 	free_initmem_default(-1);
-- 
2.16.2

From - Thu Nov 08 21:41:09 2018
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X-Mozilla-Keys:                                                                                 
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From: Shea Levy <shea@shealevy.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uml.devel
Subject: [PATCH 15/16] sh: Use INITRAMFS_GENERIC_UNLOAD
Date: Sat, 24 Mar 2018 13:44:57 -0400
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/sh/Kconfig   | 1 +
 arch/sh/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 97fe29316476..b6f80dad2152 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -50,6 +50,7 @@ config SUPERH
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select HAVE_NMI
+	select INITRAMFS_GENERIC_UNLOAD
 	help
 	  The SuperH is a RISC processor targeted for use in embedded systems
 	  and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index ce0bbaa7e404..7451459d0725 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -477,13 +477,6 @@ void free_initmem(void)
 	free_initmem_default(-1);
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 #ifdef CONFIG_MEMORY_HOTPLUG
 int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
 		bool want_memblock)
-- 
2.16.2



From - Thu Nov 08 21:41:09 2018
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X-Mozilla-Keys:                                                                                 
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From: Shea Levy <shea@shealevy.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uml.devel
Subject: [PATCH 16/16] um: Use INITRAMFS_GENERIC_UNLOAD
Date: Sat, 24 Mar 2018 13:44:58 -0400
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2724525>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/um/Kconfig.common | 1 +
 arch/um/kernel/mem.c   | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index c68add8df3ae..1cb8a023938b 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -13,6 +13,7 @@ config UML
 	select GENERIC_CLOCKEVENTS
 	select HAVE_GCC_PLUGINS
 	select TTY # Needed for line.c
+	select INITRAMFS_GENERIC_UNLOAD
 
 config MMU
 	bool
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 3c0e470ea646..2d26eec92126 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -170,13 +170,6 @@ void free_initmem(void)
 {
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 /* Allocate and free page tables. */
 
 pgd_t *pgd_alloc(struct mm_struct *mm)
-- 
2.16.2



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Subject: [PATCH 12/16] openrisc: Use INITRAMFS_GENERIC_UNLOAD
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Xref: news.gmane.org gmane.linux.kernel.arc:3642 gmane.linux.ports.alpha:4852 gmane.linux.kernel:2724526 gmane.linux.ports.parisc:28386 gmane.linux.ports.ppc64.devel:155005 gmane.linux.ports.sh.devel:56709 gmane.linux.uml.devel:16683
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3642>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/openrisc/Kconfig   | 1 +
 arch/openrisc/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index dfb6a79ba7ff..0f8d2132baa5 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -36,6 +36,7 @@ config OPENRISC
 	select OMPIC if SMP
 	select ARCH_WANT_FRAME_POINTERS
 	select GENERIC_IRQ_MULTI_HANDLER
+	select INITRAMFS_GENERIC_UNLOAD
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index 6972d5d6f23f..c1a3dcf9ad40 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -222,13 +222,6 @@ void __init mem_init(void)
 	return;
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void free_initmem(void)
 {
 	free_initmem_default(-1);
-- 
2.16.2

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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 14/16] powerpc: Use INITRAMFS_GENERIC_UNLOAD
Date: Sat, 24 Mar 2018 13:44:56 -0400
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/powerpc/Kconfig  | 1 +
 arch/powerpc/mm/mem.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 73ce5dd07642..8cf384068e79 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -223,6 +223,7 @@ config PPC
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_VIRT_CPU_ACCOUNTING
 	select HAVE_IRQ_TIME_ACCOUNTING
+	select INITRAMFS_GENERIC_UNLOAD
 	select IRQ_DOMAIN
 	select IRQ_FORCED_THREADING
 	select MODULES_USE_ELF_RELA
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index fe8c61149fb8..e85b2a3cd264 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -404,13 +404,6 @@ void free_initmem(void)
 	free_initmem_default(POISON_FREE_INITMEM);
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 /*
  * This is called when a page has been modified by the kernel.
  * It just marks the page as not i-cache clean.  We do the i-cache
-- 
2.16.2

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X-Mozilla-Keys:                                                                                 
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Xref: news.gmane.org gmane.linux.debian.ports.hppa:7705 gmane.linux.ports.parisc:28388
Archived-At: <http://permalink.gmane.org/gmane.linux.debian.ports.hppa/7705>

Make sure that the HPMC (High Priority Machine Check) handler is 16-byte
aligned and that it's length in the IVT is a multiple of 16 bytes.
Otherwise PDC may decide not to call the HPMC crash handler.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org

diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index 8d072c44f300..781c3b9a3e46 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -84,6 +84,7 @@ END(hpmc_pim_data)
 	.text
 
 	.import intr_save, code
+	.align 16
 ENTRY_CFI(os_hpmc)
 .os_hpmc:
 
@@ -300,12 +301,15 @@ os_hpmc_6:
 
 	b .
 	nop
+	.align 16	/* make function length multiple of 16 bytes */
 ENDPROC_CFI(os_hpmc)
 .os_hpmc_end:
 
 
 	__INITRODATA
+.globl os_hpmc_size
 	.align 4
-	.export os_hpmc_size
+	.type   os_hpmc_size, @object
+	.size   os_hpmc_size, 4
 os_hpmc_size:
 	.word .os_hpmc_end-.os_hpmc



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Newsgroups: gmane.linux.kernel,gmane.linux.uml.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.ppc64.devel,gmane.linux.ports.parisc,gmane.linux.kernel.arc,gmane.linux.ports.alpha
Subject: Re: [PATCH 01/16] initrd: Add generic code path for common initrd
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Date: Sun, 25 Mar 2018 19:17:40 +0200
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Xref: news.gmane.org gmane.linux.kernel:2724766 gmane.linux.uml.devel:16685 gmane.linux.ports.sh.devel:56711 gmane.linux.ports.ppc64.devel:155013 gmane.linux.ports.parisc:28389 gmane.linux.kernel.arc:3644 gmane.linux.ports.alpha:4854
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Shea Levy <shea@shealevy.com> a écrit :

> Signed-off-by: Shea Levy <shea@shealevy.com>
> ---
>  init/initramfs.c | 7 +++++++
>  usr/Kconfig      | 4 ++++
>  2 files changed, 11 insertions(+)
>
> diff --git a/init/initramfs.c b/init/initramfs.c
> index 7e99a0038942..de5ce873eb5a 100644
> --- a/init/initramfs.c
> +++ b/init/initramfs.c
> @@ -526,6 +526,13 @@ extern unsigned long __initramfs_size;
>  #include <linux/initrd.h>
>  #include <linux/kexec.h>
>
> +#ifdef CONFIG_INITRAMFS_GENERIC_UNLOAD
> +void free_initrd_mem(unsigned long start, unsigned long end)
> +{
> +       free_reserved_area((void *)start, (void *)end, -1, "initrd");
> +}
> +#endif

In powerpc this was an __init function. Why not also put the generic  
one in __init section ?

Christophe


> +
>  static void __init free_initrd(void)
>  {
>  #ifdef CONFIG_KEXEC_CORE
> diff --git a/usr/Kconfig b/usr/Kconfig
> index 43658b8a975e..fd79d4d6fa26 100644
> --- a/usr/Kconfig
> +++ b/usr/Kconfig
> @@ -233,3 +233,7 @@ config INITRAMFS_COMPRESSION
>  	default ".lzma" if RD_LZMA
>  	default ".bz2"  if RD_BZIP2
>  	default ""
> +
> +# Arches can select this for a generic initrd unloading codepath
> +config INITRAMFS_GENERIC_UNLOAD
> +	bool
> --
> 2.16.2




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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel.openipmi,gmane.linux.ports.parisc
Subject: [PATCH] ipmi/parisc: Add IPMI chassis poweroff
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To: linux-parisc@vger.kernel.org, Corey Minyard <minyard@acm.org>,
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Xref: news.gmane.org gmane.linux.kernel.openipmi:3577 gmane.linux.ports.parisc:28390
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.openipmi/3577>

This patch allows HP PA-RISC servers like rp3410/rp3440 and the HP C8000
workstation with an IPMI controller that predate IPMI 1.5 to use the standard
poweroff or powercycle commands.

These systems firmware don't set the chassis capability bit in the Get
Device ID, but they do implement the standard poweroff and powercycle
commands.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/char/ipmi/ipmi_poweroff.c b/drivers/char/ipmi/ipmi_poweroff.c
index 38e6af1c8e38..09f34ea370da 100644
--- a/drivers/char/ipmi/ipmi_poweroff.c
+++ b/drivers/char/ipmi/ipmi_poweroff.c
@@ -453,6 +453,13 @@ static int ipmi_dell_chassis_detect(ipmi_user_t user)
 	    ipmi_version_major <= 1 &&
 	    ipmi_version_minor < 5)
 		return 1;
+
+	/* BMC in HP C8000 can handle chassis functions too. */
+	if (IS_ENABLED(CONFIG_PARISC) &&
+	    mfg_id == 0x0b && prod_id == 0x8201 &&
+	    ipmi_version == 1)
+		return 1;
+
 	return 0;
 }
 

------------------------------------------------------------------------------
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From - Thu Nov 08 21:41:09 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uml.devel
Subject: [PATCH v2 00/16] Generic infrastructure for unloading initramfs
Date: Sun, 25 Mar 2018 18:18:37 -0400
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This patch series extracts out code for unloading the initramfs that
was identical across 14 architectures, and moves those architectures
to the common code path. Additionally, RISC-V is newly moved to the
common code path.

In addition to reducing duplication, this allows us to bring future
improvements (such as generalizing existing "keep initrd" command line
options) to multiple architectures at once.

v2: Mark generic free_initrd_mem __init.



From - Thu Nov 08 21:41:09 2018
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Subject: [PATCH v2 04/16] arc: Use INITRAMFS_GENERIC_UNLOAD
Date: Sun, 25 Mar 2018 18:18:41 -0400
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2724866>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/arc/Kconfig   | 1 +
 arch/arc/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index d76bf4a83740..2844ce5b910c 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -44,6 +44,7 @@ config ARC
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_LZMA
+	select INITRAMFS_GENERIC_UNLOAD
 
 config MIGHT_HAVE_PCI
 	bool
diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index ba145065c579..7bcf23ab1756 100644
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -229,10 +229,3 @@ void __ref free_initmem(void)
 {
 	free_initmem_default(-1);
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-- 
2.16.2



From - Thu Nov 08 21:41:09 2018
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Subject: [PATCH v2 05/16] c6x: Use INITRAMFS_GENERIC_UNLOAD
Date: Sun, 25 Mar 2018 18:18:42 -0400
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/c6x/Kconfig   | 1 +
 arch/c6x/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index c6b4dd1418b4..857f95f9a6a4 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -19,6 +19,7 @@ config C6X
 	select GENERIC_CLOCKEVENTS
 	select MODULES_USE_ELF_RELA
 	select ARCH_NO_COHERENT_DMA_MMAP
+	select INITRAMFS_GENERIC_UNLOAD
 
 config MMU
 	def_bool n
diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c
index 4cc72b0d1c1d..a11cb657182a 100644
--- a/arch/c6x/mm/init.c
+++ b/arch/c6x/mm/init.c
@@ -66,13 +66,6 @@ void __init mem_init(void)
 	mem_init_print_info(NULL);
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void __init free_initmem(void)
 {
 	free_initmem_default(-1);
-- 
2.16.2



From - Thu Nov 08 21:41:09 2018
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Subject: [PATCH v2 06/16] frv: Use INITRAMFS_GENERIC_UNLOAD
Date: Sun, 25 Mar 2018 18:18:43 -0400
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/frv/Kconfig   |  1 +
 arch/frv/mm/init.c | 11 -----------
 2 files changed, 1 insertion(+), 11 deletions(-)

diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index af369b05fed5..5c104b800cb1 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -17,6 +17,7 @@ config FRV
 	select OLD_SIGACTION
 	select HAVE_DEBUG_STACKOVERFLOW
 	select ARCH_NO_COHERENT_DMA_MMAP
+	select INITRAMFS_GENERIC_UNLOAD
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c
index cf464100e838..345edc4dc462 100644
--- a/arch/frv/mm/init.c
+++ b/arch/frv/mm/init.c
@@ -131,14 +131,3 @@ void free_initmem(void)
 	free_initmem_default(-1);
 #endif
 } /* end free_initmem() */
-
-/*****************************************************************************/
-/*
- * free the initial ramdisk memory
- */
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-} /* end free_initrd_mem() */
-#endif
-- 
2.16.2



From - Thu Nov 08 21:41:09 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH v2 07/16] h8300: Use INITRAMFS_GENERIC_UNLOAD
Date: Sun, 25 Mar 2018 18:18:44 -0400
Lines: 40
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2724869>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/h8300/Kconfig   | 1 +
 arch/h8300/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 091d6d04b5e5..58c9b6b1df16 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -24,6 +24,7 @@ config H8300
 	select HAVE_ARCH_HASH
 	select CPU_NO_EFFICIENT_FFS
 	select DMA_DIRECT_OPS
+	select INITRAMFS_GENERIC_UNLOAD
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
index 015287ac8ce8..37574332b202 100644
--- a/arch/h8300/mm/init.c
+++ b/arch/h8300/mm/init.c
@@ -102,13 +102,6 @@ void __init mem_init(void)
 }
 
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void
 free_initmem(void)
 {
-- 
2.16.2



From - Thu Nov 08 21:41:10 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH v2 09/16] m68k: Use INITRAMFS_GENERIC_UNLOAD
Date: Sun, 25 Mar 2018 18:18:46 -0400
Lines: 37
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2724870>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/m68k/Kconfig   | 1 +
 arch/m68k/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 785612b576f7..47913a68529e 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -24,6 +24,7 @@ config M68K
 	select MODULES_USE_ELF_RELA
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
+	select INITRAMFS_GENERIC_UNLOAD
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
index e85acd131fa8..e20bef09258c 100644
--- a/arch/m68k/mm/init.c
+++ b/arch/m68k/mm/init.c
@@ -172,10 +172,3 @@ void __init mem_init(void)
 	mem_init_print_info(NULL);
 	print_memmap();
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-- 
2.16.2



From - Thu Nov 08 21:41:10 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uml.devel
Subject: [PATCH v2 11/16] nios2: Use INITRAMFS_GENERIC_UNLOAD
Date: Sun, 25 Mar 2018 18:18:48 -0400
Lines: 40
Approved: news@gmane.org
Message-ID: <20180325221853.10839-12-shea@shealevy.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2724871>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/nios2/Kconfig   | 1 +
 arch/nios2/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 3d4ec88f1db1..d3b72d5c8967 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -19,6 +19,7 @@ config NIOS2
 	select SPARSE_IRQ
 	select USB_ARCH_HAS_HCD if USB_SUPPORT
 	select CPU_NO_EFFICIENT_FFS
+	select INITRAMFS_GENERIC_UNLOAD
 
 config GENERIC_CSUM
 	def_bool y
diff --git a/arch/nios2/mm/init.c b/arch/nios2/mm/init.c
index c92fe4234009..3df75ff8c768 100644
--- a/arch/nios2/mm/init.c
+++ b/arch/nios2/mm/init.c
@@ -82,13 +82,6 @@ void __init mmu_init(void)
 	flush_tlb_all();
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void __ref free_initmem(void)
 {
 	free_initmem_default(-1);
-- 
2.16.2



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Subject: [PATCH v2 16/16] um: Use INITRAMFS_GENERIC_UNLOAD
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/um/Kconfig.common | 1 +
 arch/um/kernel/mem.c   | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index c68add8df3ae..1cb8a023938b 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -13,6 +13,7 @@ config UML
 	select GENERIC_CLOCKEVENTS
 	select HAVE_GCC_PLUGINS
 	select TTY # Needed for line.c
+	select INITRAMFS_GENERIC_UNLOAD
 
 config MMU
 	bool
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 3c0e470ea646..2d26eec92126 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -170,13 +170,6 @@ void free_initmem(void)
 {
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 /* Allocate and free page tables. */
 
 pgd_t *pgd_alloc(struct mm_struct *mm)
-- 
2.16.2



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Subject: [PATCH v2 15/16] sh: Use INITRAMFS_GENERIC_UNLOAD
Date: Sun, 25 Mar 2018 18:18:52 -0400
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/sh/Kconfig   | 1 +
 arch/sh/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 97fe29316476..b6f80dad2152 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -50,6 +50,7 @@ config SUPERH
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select HAVE_NMI
+	select INITRAMFS_GENERIC_UNLOAD
 	help
 	  The SuperH is a RISC processor targeted for use in embedded systems
 	  and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index ce0bbaa7e404..7451459d0725 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -477,13 +477,6 @@ void free_initmem(void)
 	free_initmem_default(-1);
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 #ifdef CONFIG_MEMORY_HOTPLUG
 int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
 		bool want_memblock)
-- 
2.16.2



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Subject: Re: [PATCH 01/16] initrd: Add generic code path for common initrd unloading logic.
Date: Sun, 25 Mar 2018 18:20:02 -0400
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To: LEROY Christophe <christophe.leroy@c-s.fr>
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--=-=-=
Content-Type: text/plain; charset=utf-8
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Hi Christophe,

LEROY Christophe <christophe.leroy@c-s.fr> writes:

> Shea Levy <shea@shealevy.com> a =C3=A9crit=C2=A0:
>
>> Signed-off-by: Shea Levy <shea@shealevy.com>
>> ---
>>  init/initramfs.c | 7 +++++++
>>  usr/Kconfig      | 4 ++++
>>  2 files changed, 11 insertions(+)
>>
>> diff --git a/init/initramfs.c b/init/initramfs.c
>> index 7e99a0038942..de5ce873eb5a 100644
>> --- a/init/initramfs.c
>> +++ b/init/initramfs.c
>> @@ -526,6 +526,13 @@ extern unsigned long __initramfs_size;
>>  #include <linux/initrd.h>
>>  #include <linux/kexec.h>
>>
>> +#ifdef CONFIG_INITRAMFS_GENERIC_UNLOAD
>> +void free_initrd_mem(unsigned long start, unsigned long end)
>> +{
>> +       free_reserved_area((void *)start, (void *)end, -1, "initrd");
>> +}
>> +#endif
>
> In powerpc this was an __init function. Why not also put the generic=20=20
> one in __init section ?
>

v2 series sent, thanks!

>
> Christophe
>
>
>> +
>>  static void __init free_initrd(void)
>>  {
>>  #ifdef CONFIG_KEXEC_CORE
>> diff --git a/usr/Kconfig b/usr/Kconfig
>> index 43658b8a975e..fd79d4d6fa26 100644
>> --- a/usr/Kconfig
>> +++ b/usr/Kconfig
>> @@ -233,3 +233,7 @@ config INITRAMFS_COMPRESSION
>>  	default ".lzma" if RD_LZMA
>>  	default ".bz2"  if RD_BZIP2
>>  	default ""
>> +
>> +# Arches can select this for a generic initrd unloading codepath
>> +config INITRAMFS_GENERIC_UNLOAD
>> +	bool
>> --
>> 2.16.2

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From - Thu Nov 08 21:41:10 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Shea Levy <shea@shealevy.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uml.devel
Subject: [PATCH v2 14/16] powerpc: Use INITRAMFS_GENERIC_UNLOAD
Date: Sun, 25 Mar 2018 18:18:51 -0400
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/powerpc/Kconfig  | 1 +
 arch/powerpc/mm/mem.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 73ce5dd07642..8cf384068e79 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -223,6 +223,7 @@ config PPC
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_VIRT_CPU_ACCOUNTING
 	select HAVE_IRQ_TIME_ACCOUNTING
+	select INITRAMFS_GENERIC_UNLOAD
 	select IRQ_DOMAIN
 	select IRQ_FORCED_THREADING
 	select MODULES_USE_ELF_RELA
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index fe8c61149fb8..e85b2a3cd264 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -404,13 +404,6 @@ void free_initmem(void)
 	free_initmem_default(POISON_FREE_INITMEM);
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 /*
  * This is called when a page has been modified by the kernel.
  * It just marks the page as not i-cache clean.  We do the i-cache
-- 
2.16.2



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Subject: [PATCH v2 13/16] parisc: Use INITRAMFS_GENERIC_UNLOAD
Date: Sun, 25 Mar 2018 18:18:50 -0400
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/parisc/Kconfig   | 1 +
 arch/parisc/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 9792d8cf4f56..7410c2094987 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -51,6 +51,7 @@ config PARISC
 	select GENERIC_CLOCKEVENTS
 	select ARCH_NO_COHERENT_DMA_MMAP
 	select CPU_NO_EFFICIENT_FFS
+	select INITRAMFS_GENERIC_UNLOAD
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index cab32ee824d2..3643399230f3 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -932,10 +932,3 @@ void flush_tlb_all(void)
 	spin_unlock(&sid_lock);
 }
 #endif
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-- 
2.16.2



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Subject: [PATCH v2 01/16] initrd: Add generic code path for common initrd
 unloading logic.
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ppc.embedded/123321>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 init/initramfs.c | 7 +++++++
 usr/Kconfig      | 4 ++++
 2 files changed, 11 insertions(+)

diff --git a/init/initramfs.c b/init/initramfs.c
index 7e99a0038942..5f2e3dba4822 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -526,6 +526,13 @@ extern unsigned long __initramfs_size;
 #include <linux/initrd.h>
 #include <linux/kexec.h>
 
+#ifdef CONFIG_INITRAMFS_GENERIC_UNLOAD
+void __init free_initrd_mem(unsigned long start, unsigned long end)
+{
+       free_reserved_area((void *)start, (void *)end, -1, "initrd");
+}
+#endif
+
 static void __init free_initrd(void)
 {
 #ifdef CONFIG_KEXEC_CORE
diff --git a/usr/Kconfig b/usr/Kconfig
index 43658b8a975e..fd79d4d6fa26 100644
--- a/usr/Kconfig
+++ b/usr/Kconfig
@@ -233,3 +233,7 @@ config INITRAMFS_COMPRESSION
 	default ".lzma" if RD_LZMA
 	default ".bz2"  if RD_BZIP2
 	default ""
+
+# Arches can select this for a generic initrd unloading codepath
+config INITRAMFS_GENERIC_UNLOAD
+	bool
-- 
2.16.2



From - Thu Nov 08 21:41:10 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uml.devel
Subject: [PATCH v2 12/16] openrisc: Use INITRAMFS_GENERIC_UNLOAD
Date: Sun, 25 Mar 2018 18:18:49 -0400
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2724887>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/openrisc/Kconfig   | 1 +
 arch/openrisc/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index dfb6a79ba7ff..0f8d2132baa5 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -36,6 +36,7 @@ config OPENRISC
 	select OMPIC if SMP
 	select ARCH_WANT_FRAME_POINTERS
 	select GENERIC_IRQ_MULTI_HANDLER
+	select INITRAMFS_GENERIC_UNLOAD
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index 6972d5d6f23f..c1a3dcf9ad40 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -222,13 +222,6 @@ void __init mem_init(void)
 	return;
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void free_initmem(void)
 {
 	free_initmem_default(-1);
-- 
2.16.2



From - Thu Nov 08 21:41:10 2018
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Subject: [PATCH v2 10/16] microblaze: Use INITRAMFS_GENERIC_UNLOAD
Date: Sun, 25 Mar 2018 18:18:47 -0400
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/microblaze/Kconfig   | 1 +
 arch/microblaze/mm/init.c | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 3817a3e2146c..ef23e8410b4b 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -36,6 +36,7 @@ config MICROBLAZE
 	select TRACING_SUPPORT
 	select VIRT_TO_BUS
 	select CPU_NO_EFFICIENT_FFS
+	select INITRAMFS_GENERIC_UNLOAD
 
 # Endianness selection
 choice
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index df6de7ccdc2e..ea058dfda222 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -187,13 +187,6 @@ void __init setup_memory(void)
 	paging_init();
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void free_initmem(void)
 {
 	free_initmem_default(-1);
-- 
2.16.2



From - Thu Nov 08 21:41:10 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uml.devel
Subject: [PATCH v2 03/16] alpha: Use INITRAMFS_GENERIC_UNLOAD
Date: Sun, 25 Mar 2018 18:18:40 -0400
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2724892>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/alpha/Kconfig   | 1 +
 arch/alpha/mm/init.c | 8 --------
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index e96adcbcab41..238d743ae8f2 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -27,6 +27,7 @@ config ALPHA
 	select ODD_RT_SIGACTION
 	select OLD_SIGSUSPEND
 	select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
+	select INITRAMFS_GENERIC_UNLOAD
 	help
 	  The Alpha is a 64-bit general-purpose processor designed and
 	  marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
index 9d74520298ab..55f7c8efa962 100644
--- a/arch/alpha/mm/init.c
+++ b/arch/alpha/mm/init.c
@@ -291,11 +291,3 @@ free_initmem(void)
 {
 	free_initmem_default(-1);
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void
-free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-- 
2.16.2



From - Thu Nov 08 21:41:10 2018
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X-Mozilla-Keys:                                                                                 
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From: Shea Levy <shea@shealevy.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.uml.devel
Subject: [PATCH v2 08/16] m32r: Use INITRAMFS_GENERIC_UNLOAD
Date: Sun, 25 Mar 2018 18:18:45 -0400
Lines: 41
Approved: news@gmane.org
Message-ID: <20180325221853.10839-9-shea@shealevy.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2724893>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/m32r/Kconfig   |  1 +
 arch/m32r/mm/init.c | 11 -----------
 2 files changed, 1 insertion(+), 11 deletions(-)

diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index dd84ee194579..010a2b999181 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -21,6 +21,7 @@ config M32R
 	select CPU_NO_EFFICIENT_FFS
 	select DMA_DIRECT_OPS
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
+	select INITRAMFS_GENERIC_UNLOAD
 
 config SBUS
 	bool
diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c
index 93abc8c3a46e..e2b5f09209ee 100644
--- a/arch/m32r/mm/init.c
+++ b/arch/m32r/mm/init.c
@@ -139,14 +139,3 @@ void free_initmem(void)
 {
 	free_initmem_default(-1);
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-/*======================================================================*
- * free_initrd_mem() :
- * orig : arch/sh/mm/init.c
- *======================================================================*/
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-- 
2.16.2



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Subject: [PATCH v2 02/16] riscv: Use INITRAMFS_GENERIC_UNLOAD.
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2724894>

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/riscv/Kconfig   | 1 +
 arch/riscv/mm/init.c | 6 ------
 2 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index c22ebe08e902..ab1b4cee84fc 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -37,6 +37,7 @@ config RISCV
 	select THREAD_INFO_IN_TASK
 	select RISCV_TIMER
 	select GENERIC_IRQ_MULTI_HANDLER
+	select INITRAMFS_GENERIC_UNLOAD
 
 config MMU
 	def_bool y
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index c77df8142be2..36f83fe8a726 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -62,9 +62,3 @@ void free_initmem(void)
 {
 	free_initmem_default(0);
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-}
-#endif /* CONFIG_BLK_DEV_INITRD */
-- 
2.16.2



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Subject: Re: [PATCH v2 02/16] riscv: Use INITRAMFS_GENERIC_UNLOAD.
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2724927>

On Sun, 25 Mar 2018 15:18:39 PDT (-0700), shea@shealevy.com wrote:
> Signed-off-by: Shea Levy <shea@shealevy.com>
> ---
>  arch/riscv/Kconfig   | 1 +
>  arch/riscv/mm/init.c | 6 ------
>  2 files changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index c22ebe08e902..ab1b4cee84fc 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -37,6 +37,7 @@ config RISCV
>  	select THREAD_INFO_IN_TASK
>  	select RISCV_TIMER
>  	select GENERIC_IRQ_MULTI_HANDLER
> +	select INITRAMFS_GENERIC_UNLOAD
>
>  config MMU
>  	def_bool y
> diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
> index c77df8142be2..36f83fe8a726 100644
> --- a/arch/riscv/mm/init.c
> +++ b/arch/riscv/mm/init.c
> @@ -62,9 +62,3 @@ void free_initmem(void)
>  {
>  	free_initmem_default(0);
>  }
> -
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -}
> -#endif /* CONFIG_BLK_DEV_INITRD */

I haven't looked through the rest of the patch set, but this is a pretty 
trivial change so feel free to add a 

Reviewed-By: Palmer Dabbelt <palmer@sifive.com>

if you'd like.  If you'd like it merged through my tree then just say 
something!


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Subject: Re: [PATCH v2 02/16] riscv: Use INITRAMFS_GENERIC_UNLOAD.
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--=-=-=
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable

Hi Palmer,

Palmer Dabbelt <palmer@sifive.com> writes:

> On Sun, 25 Mar 2018 15:18:39 PDT (-0700), shea@shealevy.com wrote:
>> Signed-off-by: Shea Levy <shea@shealevy.com>
>> ---
>>  arch/riscv/Kconfig   | 1 +
>>  arch/riscv/mm/init.c | 6 ------
>>  2 files changed, 1 insertion(+), 6 deletions(-)
>>
>> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
>> index c22ebe08e902..ab1b4cee84fc 100644
>> --- a/arch/riscv/Kconfig
>> +++ b/arch/riscv/Kconfig
>> @@ -37,6 +37,7 @@ config RISCV
>>  	select THREAD_INFO_IN_TASK
>>  	select RISCV_TIMER
>>  	select GENERIC_IRQ_MULTI_HANDLER
>> +	select INITRAMFS_GENERIC_UNLOAD
>>
>>  config MMU
>>  	def_bool y
>> diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
>> index c77df8142be2..36f83fe8a726 100644
>> --- a/arch/riscv/mm/init.c
>> +++ b/arch/riscv/mm/init.c
>> @@ -62,9 +62,3 @@ void free_initmem(void)
>>  {
>>  	free_initmem_default(0);
>>  }
>> -
>> -#ifdef CONFIG_BLK_DEV_INITRD
>> -void free_initrd_mem(unsigned long start, unsigned long end)
>> -{
>> -}
>> -#endif /* CONFIG_BLK_DEV_INITRD */
>
> I haven't looked through the rest of the patch set, but this is a pretty=
=20
> trivial change so feel free to add a=20
>
> Reviewed-By: Palmer Dabbelt <palmer@sifive.com>
>
> if you'd like.  If you'd like it merged through my tree then just say=20
> something!

I'm not sure how these cross-cutting changes go, if you can take the
series through your tree that'd be great!

Thanks,
Shea

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From - Thu Nov 08 21:41:11 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm
Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
Date: Mon, 26 Mar 2018 10:46:50 +0200
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Approved: news@gmane.org
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Cc: Matthew Wilcox <willy@infradead.org>, rth@twiddle.net,
        ink@jurassic.park.msu.ru, mattst88@gmail.com, vgupta@synopsys.com,
        linux@armlinux.org.uk, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, jejb@parisc-linux.org,
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        Hugh Dickins <hughd@google.com>, kstewart@linuxfoundation.org,
        pombredanne@nexb.com, Andrew Morton <akpm@linux-foundation.org>,
        steve.capper@arm.com, punit.agrawal@arm.
To: Ilya Smith <blackzert@gmail.com>
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On Fri 23-03-18 20:55:49, Ilya Smith wrote:
> 
> > On 23 Mar 2018, at 15:48, Matthew Wilcox <willy@infradead.org> wrote:
> > 
> > On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
> >> Current implementation doesn't randomize address returned by mmap.
> >> All the entropy ends with choosing mmap_base_addr at the process
> >> creation. After that mmap build very predictable layout of address
> >> space. It allows to bypass ASLR in many cases. This patch make
> >> randomization of address on any mmap call.
> > 
> > Why should this be done in the kernel rather than libc?  libc is perfectly
> > capable of specifying random numbers in the first argument of mmap.
> Well, there is following reasons:
> 1. It should be done in any libc implementation, what is not possible IMO;

Is this really so helpful?

> 2. User mode is not that layer which should be responsible for choosing
> random address or handling entropy;

Why?

> 3. Memory fragmentation is unpredictable in this case
> 
> Off course user mode could use random ‘hint’ address, but kernel may
> discard this address if it is occupied for example and allocate just before
> closest vma. So this solution doesn’t give that much security like 
> randomization address inside kernel.

The userspace can use the new MAP_FIXED_NOREPLACE to probe for the
address range atomically and chose a different range on failure.

-- 
Michal Hocko
SUSE Labs


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Subject: Re: [PATCH] ipmi/parisc: Add IPMI chassis
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Xref: news.gmane.org gmane.linux.kernel.openipmi:3578 gmane.linux.ports.parisc:28412
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On Sat, Mar 24, 2018 at 12:45 PM, Helge Deller <deller@gmx.de> wrote:
> This patch allows HP PA-RISC servers like rp3410/rp3440 and the HP C8000
> workstation with an IPMI controller that predate IPMI 1.5 to use the standard
> poweroff or powercycle commands.
>
> These systems firmware don't set the chassis capability bit in the Get
> Device ID, but they do implement the standard poweroff and powercycle
> commands.
>
> Signed-off-by: Helge Deller <deller@gmx.de>

Thanks. I applied your three patches relating to power off and my
C8000 now properly powers off (surprise surprise! :)

Tested-by: Matt Turner <mattst88@gmail.com>

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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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Cc: Matthew Wilcox <willy@infradead.org>, rth@twiddle.net,
        ink@jurassic.park.msu.ru, mattst88@gmail.com, vgupta@synopsys.com,
        linux@armlinux.org.uk, tony.luck@intel.com, fenghua.yu@intel.com,
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        nyc@holomorphy.com, viro@zeniv.linux.org.uk, arnd@arndb.de,
        gregkh@linuxfoundation.org, deepa.kernel@gmail.com,
        Hugh Dickins <hughd@google.com>, kstewart@linuxfoundation.org,
        pombredanne@nexb.com, Andrew Morton <akpm@linux-foundation.org>,
        steve.capper@arm.com, punit.agrawal@arm.
To: Michal Hocko <mhocko@kernel.org>
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> On 26 Mar 2018, at 11:46, Michal Hocko <mhocko@kernel.org> wrote:
>=20
> On Fri 23-03-18 20:55:49, Ilya Smith wrote:
>>=20
>>> On 23 Mar 2018, at 15:48, Matthew Wilcox <willy@infradead.org> =
wrote:
>>>=20
>>> On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
>>>> Current implementation doesn't randomize address returned by mmap.
>>>> All the entropy ends with choosing mmap_base_addr at the process
>>>> creation. After that mmap build very predictable layout of address
>>>> space. It allows to bypass ASLR in many cases. This patch make
>>>> randomization of address on any mmap call.
>>>=20
>>> Why should this be done in the kernel rather than libc?  libc is =
perfectly
>>> capable of specifying random numbers in the first argument of mmap.
>> Well, there is following reasons:
>> 1. It should be done in any libc implementation, what is not possible =
IMO;
>=20
> Is this really so helpful?

Yes, ASLR is one of very important mitigation techniques which are =
really used=20
to protect applications. If there is no ASLR, it is very easy to exploit=20=

vulnerable application and compromise the system. We can=E2=80=99t just =
fix all the=20
vulnerabilities right now, thats why we have mitigations - techniques =
which are=20
makes exploitation more hard or impossible in some cases.

Thats why it is helpful.

>=20
>> 2. User mode is not that layer which should be responsible for =
choosing
>> random address or handling entropy;
>=20
> Why?

Because of the following reasons:
1. To get random address you should have entropy. These entropy =
shouldn=E2=80=99t be=20
exposed to attacker anyhow, the best case is to get it from kernel. So =
this is
a syscall.
2. You should have memory map of your process to prevent remapping or =
big
fragmentation. Kernel already has this map. You will got another one in =
libc.
And any non-libc user of mmap (via syscall, etc) will make hole in your =
map.
This one also decrease performance cause you any way call syscall_mmap=20=

which will try to find some address for you in worst case, but after you =
already
did some computing on it.
3. The more memory you use in userland for these proposal, the easier =
for
attacker to leak it or use in exploitation techniques.
4. It is so easy to fix Kernel function and so hard to support memory
management from userspace.

>=20
>> 3. Memory fragmentation is unpredictable in this case
>>=20
>> Off course user mode could use random =E2=80=98hint=E2=80=99 address, =
but kernel may
>> discard this address if it is occupied for example and allocate just =
before
>> closest vma. So this solution doesn=E2=80=99t give that much security =
like=20
>> randomization address inside kernel.
>=20
> The userspace can use the new MAP_FIXED_NOREPLACE to probe for the
> address range atomically and chose a different range on failure.
>=20

This algorithm should track current memory. If he doesn=E2=80=99t he may =
cause
infinite loop while trying to choose memory. And each iteration increase =
time
needed on allocation new memory, what is not preferred by any libc =
library
developer.

Thats why I did this patch.

Thanks,
Ilya




From - Thu Nov 08 21:41:11 2018
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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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To: Ilya Smith <blackzert@gmail.com>
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On Mon 26-03-18 22:45:31, Ilya Smith wrote:
> 
> > On 26 Mar 2018, at 11:46, Michal Hocko <mhocko@kernel.org> wrote:
> > 
> > On Fri 23-03-18 20:55:49, Ilya Smith wrote:
> >> 
> >>> On 23 Mar 2018, at 15:48, Matthew Wilcox <willy@infradead.org> wrote:
> >>> 
> >>> On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
> >>>> Current implementation doesn't randomize address returned by mmap.
> >>>> All the entropy ends with choosing mmap_base_addr at the process
> >>>> creation. After that mmap build very predictable layout of address
> >>>> space. It allows to bypass ASLR in many cases. This patch make
> >>>> randomization of address on any mmap call.
> >>> 
> >>> Why should this be done in the kernel rather than libc?  libc is perfectly
> >>> capable of specifying random numbers in the first argument of mmap.
> >> Well, there is following reasons:
> >> 1. It should be done in any libc implementation, what is not possible IMO;
> > 
> > Is this really so helpful?
> 
> Yes, ASLR is one of very important mitigation techniques which are really used 
> to protect applications. If there is no ASLR, it is very easy to exploit 
> vulnerable application and compromise the system. We can’t just fix all the 
> vulnerabilities right now, thats why we have mitigations - techniques which are 
> makes exploitation more hard or impossible in some cases.
> 
> Thats why it is helpful.

I am not questioning ASLR in general. I am asking whether we really need
per mmap ASLR in general. I can imagine that some environments want to
pay the additional price and other side effects, but considering this
can be achieved by libc, why to add more code to the kernel?

> > 
> >> 2. User mode is not that layer which should be responsible for choosing
> >> random address or handling entropy;
> > 
> > Why?
> 
> Because of the following reasons:
> 1. To get random address you should have entropy. These entropy shouldn’t be 
> exposed to attacker anyhow, the best case is to get it from kernel. So this is
> a syscall.

/dev/[u]random is not sufficient?

> 2. You should have memory map of your process to prevent remapping or big
> fragmentation. Kernel already has this map.

/proc/self/maps?

> You will got another one in libc.
> And any non-libc user of mmap (via syscall, etc) will make hole in your map.
> This one also decrease performance cause you any way call syscall_mmap 
> which will try to find some address for you in worst case, but after you already
> did some computing on it.

I do not understand. a) you should be prepared to pay an additional
price for an additional security measures and b) how would anybody punch
a hole into your mapping? 

> 3. The more memory you use in userland for these proposal, the easier for
> attacker to leak it or use in exploitation techniques.

This is true in general, isn't it? I fail to see how kernel chosen and
user chosen ranges would make any difference.

> 4. It is so easy to fix Kernel function and so hard to support memory
> management from userspace.

Well, on the other hand the new layout mode will add a maintenance
burden on the kernel and will have to be maintained for ever because it
is a user visible ABI.

> >> 3. Memory fragmentation is unpredictable in this case
> >> 
> >> Off course user mode could use random ‘hint’ address, but kernel may
> >> discard this address if it is occupied for example and allocate just before
> >> closest vma. So this solution doesn’t give that much security like 
> >> randomization address inside kernel.
> > 
> > The userspace can use the new MAP_FIXED_NOREPLACE to probe for the
> > address range atomically and chose a different range on failure.
> > 
> 
> This algorithm should track current memory. If he doesn’t he may cause
> infinite loop while trying to choose memory. And each iteration increase time
> needed on allocation new memory, what is not preferred by any libc library
> developer.

Well, I am pretty sure userspace can implement proper free ranges
tracking...

-- 
Michal Hocko
SUSE Labs


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> On 27 Mar 2018, at 10:24, Michal Hocko <mhocko@kernel.org> wrote:
>=20
> On Mon 26-03-18 22:45:31, Ilya Smith wrote:
>>=20
>>> On 26 Mar 2018, at 11:46, Michal Hocko <mhocko@kernel.org> wrote:
>>>=20
>>> On Fri 23-03-18 20:55:49, Ilya Smith wrote:
>>>>=20
>>>>> On 23 Mar 2018, at 15:48, Matthew Wilcox <willy@infradead.org> =
wrote:
>>>>>=20
>>>>> On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
>>>>>> Current implementation doesn't randomize address returned by =
mmap.
>>>>>> All the entropy ends with choosing mmap_base_addr at the process
>>>>>> creation. After that mmap build very predictable layout of =
address
>>>>>> space. It allows to bypass ASLR in many cases. This patch make
>>>>>> randomization of address on any mmap call.
>>>>>=20
>>>>> Why should this be done in the kernel rather than libc?  libc is =
perfectly
>>>>> capable of specifying random numbers in the first argument of =
mmap.
>>>> Well, there is following reasons:
>>>> 1. It should be done in any libc implementation, what is not =
possible IMO;
>>>=20
>>> Is this really so helpful?
>>=20
>> Yes, ASLR is one of very important mitigation techniques which are =
really used=20
>> to protect applications. If there is no ASLR, it is very easy to =
exploit=20
>> vulnerable application and compromise the system. We can=E2=80=99t =
just fix all the=20
>> vulnerabilities right now, thats why we have mitigations - techniques =
which are=20
>> makes exploitation more hard or impossible in some cases.
>>=20
>> Thats why it is helpful.
>=20
> I am not questioning ASLR in general. I am asking whether we really =
need
> per mmap ASLR in general. I can imagine that some environments want to
> pay the additional price and other side effects, but considering this
> can be achieved by libc, why to add more code to the kernel?

I believe this is the only one right place for it. Adding these 200+ =
lines of=20
code we give this feature for any user - on desktop, on server, on IoT =
device,=20
on SCADA, etc. But if only glibc will implement =E2=80=98user-mode-aslr=E2=
=80=99 IoT and SCADA=20
devices will never get it.

>>>=20
>>>> 2. User mode is not that layer which should be responsible for =
choosing
>>>> random address or handling entropy;
>>>=20
>>> Why?
>>=20
>> Because of the following reasons:
>> 1. To get random address you should have entropy. These entropy =
shouldn=E2=80=99t be=20
>> exposed to attacker anyhow, the best case is to get it from kernel. =
So this is
>> a syscall.
>=20
> /dev/[u]random is not sufficient?

Using /dev/[u]random makes 3 syscalls - open, read, close. This is a =
performance
issue.

>=20
>> 2. You should have memory map of your process to prevent remapping or =
big
>> fragmentation. Kernel already has this map.
>=20
> /proc/self/maps?

Not any system has /proc and parsing /proc/self/maps is robust so it is =
the=20
performance issue. libc will have to do it on any mmap. And there is a =
possible=20
race here - application may mmap/unmap memory with native syscall during =
other=20
thread reading maps.

>> You will got another one in libc.
>> And any non-libc user of mmap (via syscall, etc) will make hole in =
your map.
>> This one also decrease performance cause you any way call =
syscall_mmap=20
>> which will try to find some address for you in worst case, but after =
you already
>> did some computing on it.
>=20
> I do not understand. a) you should be prepared to pay an additional
> price for an additional security measures and b) how would anybody =
punch
> a hole into your mapping?=20
>=20

I was talking about any code that call mmap directly without libc =
wrapper.

>> 3. The more memory you use in userland for these proposal, the easier =
for
>> attacker to leak it or use in exploitation techniques.
>=20
> This is true in general, isn't it? I fail to see how kernel chosen and
> user chosen ranges would make any difference.

My point here was that libc will have to keep memory representation as a =
tree=20
and this tree increase attack surface. It could be hidden in kernel as =
it is right now.

>=20
>> 4. It is so easy to fix Kernel function and so hard to support memory
>> management from userspace.
>=20
> Well, on the other hand the new layout mode will add a maintenance
> burden on the kernel and will have to be maintained for ever because =
it
> is a user visible ABI.

Thats why I made this patch as RFC and would like to discuss this ABI =
here. I=20
made randomize_va_space parameter to allow disable randomisation per =
whole=20
system. PF_RANDOMIZE flag may disable randomization for concrete process =
(or=20
process groups?). For architecture I=E2=80=99ve made info.random_shift =3D=
 0 , so if your=20
arch has small address space you may disable shifting. I also would like =
to add=20
some sysctl to allow process/groups to change this value and allow some=20=

processes to have shifts bigger then another. Lets discuss it, please.

>=20
>>>> 3. Memory fragmentation is unpredictable in this case
>>>>=20
>>>> Off course user mode could use random =E2=80=98hint=E2=80=99 =
address, but kernel may
>>>> discard this address if it is occupied for example and allocate =
just before
>>>> closest vma. So this solution doesn=E2=80=99t give that much =
security like=20
>>>> randomization address inside kernel.
>>>=20
>>> The userspace can use the new MAP_FIXED_NOREPLACE to probe for the
>>> address range atomically and chose a different range on failure.
>>>=20
>>=20
>> This algorithm should track current memory. If he doesn=E2=80=99t he =
may cause
>> infinite loop while trying to choose memory. And each iteration =
increase time
>> needed on allocation new memory, what is not preferred by any libc =
library
>> developer.
>=20
> Well, I am pretty sure userspace can implement proper free ranges
> tracking=E2=80=A6

I think we need to know what libc developers will say on implementing =
ASLR in=20
user-mode. I am pretty sure they will say =E2=80=98nether=E2=80=99 or =
=E2=80=98some-day=E2=80=99. And problem=20
of ASLR will stay forever.

Thanks,
Ilya





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From: Michal Hocko <mhocko@kernel.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm
Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
Date: Tue, 27 Mar 2018 16:38:20 +0200
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To: Ilya Smith <blackzert@gmail.com>
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On Tue 27-03-18 16:51:08, Ilya Smith wrote:
> 
> > On 27 Mar 2018, at 10:24, Michal Hocko <mhocko@kernel.org> wrote:
> > 
> > On Mon 26-03-18 22:45:31, Ilya Smith wrote:
> >> 
> >>> On 26 Mar 2018, at 11:46, Michal Hocko <mhocko@kernel.org> wrote:
> >>> 
> >>> On Fri 23-03-18 20:55:49, Ilya Smith wrote:
> >>>> 
> >>>>> On 23 Mar 2018, at 15:48, Matthew Wilcox <willy@infradead.org> wrote:
> >>>>> 
> >>>>> On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
> >>>>>> Current implementation doesn't randomize address returned by mmap.
> >>>>>> All the entropy ends with choosing mmap_base_addr at the process
> >>>>>> creation. After that mmap build very predictable layout of address
> >>>>>> space. It allows to bypass ASLR in many cases. This patch make
> >>>>>> randomization of address on any mmap call.
> >>>>> 
> >>>>> Why should this be done in the kernel rather than libc?  libc is perfectly
> >>>>> capable of specifying random numbers in the first argument of mmap.
> >>>> Well, there is following reasons:
> >>>> 1. It should be done in any libc implementation, what is not possible IMO;
> >>> 
> >>> Is this really so helpful?
> >> 
> >> Yes, ASLR is one of very important mitigation techniques which are really used 
> >> to protect applications. If there is no ASLR, it is very easy to exploit 
> >> vulnerable application and compromise the system. We can’t just fix all the 
> >> vulnerabilities right now, thats why we have mitigations - techniques which are 
> >> makes exploitation more hard or impossible in some cases.
> >> 
> >> Thats why it is helpful.
> > 
> > I am not questioning ASLR in general. I am asking whether we really need
> > per mmap ASLR in general. I can imagine that some environments want to
> > pay the additional price and other side effects, but considering this
> > can be achieved by libc, why to add more code to the kernel?
> 
> I believe this is the only one right place for it. Adding these 200+ lines of 
> code we give this feature for any user - on desktop, on server, on IoT device, 
> on SCADA, etc. But if only glibc will implement ‘user-mode-aslr’ IoT and SCADA 
> devices will never get it.

I guess it would really help if you could be more specific about the
class of security issues this would help to mitigate. My first
understanding was that we we need some randomization between program
executable segments to reduce the attack space when a single address
leaks and you know the segments layout (ordering). But why do we need
_all_ mmaps to be randomized. Because that complicates the
implementation consirably for different reasons you have mentioned
earlier.

Do you have any specific CVE that would be mitigated by this
randomization approach?

I am sorry, I am not a security expert to see all the cosequences but a
vague - the more randomization the better - sounds rather weak to me.
-- 
Michal Hocko
SUSE Labs


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Newsgroups: gmane.linux.kernel.openipmi,gmane.linux.ports.parisc
Subject: Re: [PATCH] ipmi/parisc: Add IPMI chassis
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Subject: [PATCH v2] ipmi/parisc: Add IPMI chassis
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Xref: news.gmane.org gmane.linux.kernel.openipmi:3583 gmane.linux.ports.parisc:28419
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.openipmi/3583>

This patch allows HP PA-RISC servers like rp3410/rp3440 and the HP C8000
workstation with an IPMI controller that predate IPMI 1.5 to use the standard
poweroff or powercycle commands.

These systems firmware don't set the chassis capability bit in the Get
Device ID, but they do implement the standard poweroff and powercycle
commands.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/char/ipmi/ipmi_poweroff.c b/drivers/char/ipmi/ipmi_poweroff.c
index 38e6af1c8e38..943c8bc1c364 100644
--- a/drivers/char/ipmi/ipmi_poweroff.c
+++ b/drivers/char/ipmi/ipmi_poweroff.c
@@ -457,6 +457,24 @@ static int ipmi_dell_chassis_detect(ipmi_user_t user)
 }
 
 /*
+ * ipmi_hp_chassis_detect()
+ * HP PA-RISC servers rp3410/rp3440, the C8000 workstation and the rx2600 and
+ * zx6000 machines support IPMI vers 1 and don't set the chassis capability bit
+ * but they can handle a chassis poweroff or powercycle command.
+ */
+
+#define HP_IANA_MFR_ID 0x0b
+#define HP_BMC_PROD_ID 0x8201
+static int ipmi_hp_chassis_detect(ipmi_user_t user)
+{
+	if (mfg_id == HP_IANA_MFR_ID
+		&& prod_id == HP_BMC_PROD_ID
+		&& ipmi_version == 1)
+		return 1;
+	return 0;
+}
+
+/*
  * Standard chassis support
  */
 
@@ -533,6 +551,9 @@ static struct poweroff_function poweroff_functions[] = {
 	{ .platform_type	= "chassis",
 	  .detect		= ipmi_dell_chassis_detect,
 	  .poweroff_func	= ipmi_poweroff_chassis },
+	{ .platform_type	= "chassis",
+	  .detect		= ipmi_hp_chassis_detect,
+	  .poweroff_func	= ipmi_poweroff_chassis },
 	/* Chassis should generally be last, other things should override
 	   it. */
 	{ .platform_type	= "chassis",

------------------------------------------------------------------------------
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From: Corey Minyard <minyard@acm.org>
Newsgroups: gmane.linux.kernel.openipmi,gmane.linux.ports.parisc
Subject: Re: [PATCH v2] ipmi/parisc: Add IPMI chassis
 poweroff for certain HP PA-RISC and IA-64 servers
Date: Tue, 27 Mar 2018 11:05:17 -0500
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Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
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To: Helge Deller <deller@gmx.de>, openipmi-developer@lists.sourceforge.net,
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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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On Tue, Mar 27, 2018 at 04:51:08PM +0300, Ilya Smith wrote:
> > /dev/[u]random is not sufficient?
> 
> Using /dev/[u]random makes 3 syscalls - open, read, close. This is a performance
> issue.

You may want to take a look at the getrandom(2) system call, which is
the recommended way getting secure random numbers from the kernel.

> > Well, I am pretty sure userspace can implement proper free ranges
> > tracking…
> 
> I think we need to know what libc developers will say on implementing ASLR in 
> user-mode. I am pretty sure they will say ‘nether’ or ‘some-day’. And problem 
> of ASLR will stay forever.

Why can't you send patches to the libc developers?

Regards,

						- Ted


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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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To: Kees Cook <keescook@chromium.org>
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On Tue, Mar 27, 2018 at 03:53:53PM -0700, Kees Cook wrote:
> I agree: pushing this off to libc leaves a lot of things unprotected.
> I think this should live in the kernel. The question I have is about
> making it maintainable/readable/etc.
> 
> The state-of-the-art for ASLR is moving to finer granularity (over
> just base-address offset), so I'd really like to see this supported in
> the kernel. We'll be getting there for other things in the future, and
> I'd like to have a working production example for researchers to
> study, etc.

One thing we need is to limit the fragmentation of this approach.
Even on 64-bit systems, we can easily get into a situation where there isn't
space to map a contiguous terabyte.

From - Thu Nov 08 21:41:12 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.ia64,gmane.linux.ports.alpha,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.kernel.metag,gmane.linux.ports.ppc64.devel
Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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 Heiko Carstens <heiko.carstens@de.ibm.com>, Michal Hocko <mhocko@kernel.org>,
 Linux-MM <linux-mm@kvack.org>, Paul Mackerras <paulus@samba.org>,
 Deepa Dinamani <deepa.kernel@gmail.com>, "H. Peter Anvin" <hpa@zytor.com>,
 sparclinux <sparclinux@vger.kernel.org>, linux-ia64@vger.kernel.org,
 Dan Williams <dan.j.williams@intel.com>,
 Andrea Arcangeli <aarcange@redhat.com>,
 linux-s390 <linux-s390@vger.kernel.org>,
 Yoshinori Sato <ysato@users.sourceforge.jp>,
 Michael Ellerman <mpe@ellerman.id.au>, Helge Deller <deller@gmx.de>,
 X86 ML <x86@kernel.org>, Hugh Dickins <hugh
To: Matthew Wilcox <willy@infradead.org>
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On Tue, Mar 27, 2018 at 4:49 PM, Matthew Wilcox <willy@infradead.org> wrote:
> On Tue, Mar 27, 2018 at 03:53:53PM -0700, Kees Cook wrote:
>> I agree: pushing this off to libc leaves a lot of things unprotected.
>> I think this should live in the kernel. The question I have is about
>> making it maintainable/readable/etc.
>>
>> The state-of-the-art for ASLR is moving to finer granularity (over
>> just base-address offset), so I'd really like to see this supported in
>> the kernel. We'll be getting there for other things in the future, and
>> I'd like to have a working production example for researchers to
>> study, etc.
>
> One thing we need is to limit the fragmentation of this approach.
> Even on 64-bit systems, we can easily get into a situation where there isn't
> space to map a contiguous terabyte.

FWIW, I wouldn't expect normal systems to use this. I am curious about
fragmentation vs entropy though. Are workloads with a mis of lots of
tiny allocations and TB-allocations? AIUI, glibc uses larger mmap()
regions for handling tiny mallocs().

-Kees

-- 
Kees Cook
Pixel Security

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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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Cc: Kate Stewart <kstewart@linuxfoundation.org>,
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To: Matthew Wilcox <willy@infradead.org>
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On Tue, Mar 27, 2018 at 04:49:04PM -0700, Matthew Wilcox wrote:
> On Tue, Mar 27, 2018 at 03:53:53PM -0700, Kees Cook wrote:
> > I agree: pushing this off to libc leaves a lot of things unprotected.
> > I think this should live in the kernel. The question I have is about
> > making it maintainable/readable/etc.
> > 
> > The state-of-the-art for ASLR is moving to finer granularity (over
> > just base-address offset), so I'd really like to see this supported in
> > the kernel. We'll be getting there for other things in the future, and
> > I'd like to have a working production example for researchers to
> > study, etc.
> 
> One thing we need is to limit the fragmentation of this approach.
> Even on 64-bit systems, we can easily get into a situation where there isn't
> space to map a contiguous terabyte.

The default limit of only 65536 VMAs will also quickly come into play
if consecutive anon mmaps don't get merged. Of course this can be
raised, but it has significant resource and performance (fork) costs.

Rich

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To: Matthew Wilcox <willy@infradead.org>, Rich Felker <dalias@libc.org>
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On 03/23/2018 02:06 PM, Matthew Wilcox wrote:
> On Fri, Mar 23, 2018 at 02:00:24PM -0400, Rich Felker wrote:
>> On Fri, Mar 23, 2018 at 05:48:06AM -0700, Matthew Wilcox wrote:
>>> On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
>>>> Current implementation doesn't randomize address returned by mmap.
>>>> All the entropy ends with choosing mmap_base_addr at the process
>>>> creation. After that mmap build very predictable layout of address
>>>> space. It allows to bypass ASLR in many cases. This patch make
>>>> randomization of address on any mmap call.
>>>
>>> Why should this be done in the kernel rather than libc?  libc is perfectly
>>> capable of specifying random numbers in the first argument of mmap.
>>
>> Generally libc does not have a view of the current vm maps, and thus
>> in passing "random numbers", they would have to be uniform across the
>> whole vm space and thus non-uniform once the kernel rounds up to avoid
>> existing mappings.
> 
> I'm aware that you're the musl author, but glibc somehow manages to
> provide etext, edata and end, demonstrating that it does know where at
> least some of the memory map lies.

You can parse /proc/self/maps, but it's really expensive and disgusting.

Rob


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Subject: Re: [PATCH 01/16] initrd: Add generic code path for common initrd
 unloading logic.
Date: Wed, 28 Mar 2018 05:04:40 -0700
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> +#ifdef CONFIG_INITRAMFS_GENERIC_UNLOAD
> +void free_initrd_mem(unsigned long start, unsigned long end)
> +{
> +       free_reserved_area((void *)start, (void *)end, -1, "initrd");
> +}
> +#endif

Given how trivial this is and how many architectures can use it I'd
reverse the polarity and add a CONFIG_HAVE_ARCH_FREE_INITRD_MEM
instead.

From - Thu Nov 08 21:41:12 2018
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Subject: Re: [PATCH 01/16] initrd: Add generic code path for common initrd
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On Wed, Mar 28, 2018 at 2:04 PM, Christoph Hellwig <hch@infradead.org> wrote:
>> +#ifdef CONFIG_INITRAMFS_GENERIC_UNLOAD
>> +void free_initrd_mem(unsigned long start, unsigned long end)
>> +{
>> +       free_reserved_area((void *)start, (void *)end, -1, "initrd");
>> +}
>> +#endif
>
> Given how trivial this is and how many architectures can use it I'd
> reverse the polarity and add a CONFIG_HAVE_ARCH_FREE_INITRD_MEM
> instead.

And while adding "special" functionality to the generic version, more and more
users of CONFIG_HAVE_ARCH_FREE_INITRD_MEM will be removed.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds


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Newsgroups: gmane.comp.video.dri.devel,gmane.linux.ports.parisc,gmane.linux.kernel.janitors,gmane.linux.kernel
Subject: Re: [PATCH v2 2/2] video/fbdev/stifb: Delete an error message for a
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Cc: linux-fbdev@vger.kernel.org, linux-parisc@vger.kernel.org,
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From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Newsgroups: gmane.comp.video.dri.devel,gmane.linux.ports.parisc,gmane.linux.kernel.janitors,gmane.linux.kernel
Subject: Re: [PATCH] video/console/sticore: Delete an error message for a
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Xref: news.gmane.org gmane.linux.kernel.arc:3689 gmane.linux.kernel:2727666 gmane.linux.ports.mips.general:64256 gmane.linux.ports.sh.devel:56753 gmane.linux.ports.ia64:28757 gmane.linux.ports.hexagon:1606 gmane.linux.kernel.metag:1727 gmane.linux.ports.arm.kernel:641522 gmane.linux.ports.parisc:28432 gmane.linux.ports.alpha:4888 gmane.linux.ports.sparc:27492 gmane.linux.uml.devel:16712 gmane.linux.uml.user:15397 gmane.linux.ports.ppc64.devel:155384
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3689>

Now only those architectures that have custom initrd free requirements
need to define free_initrd_mem.

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/alpha/mm/init.c      |  8 --------
 arch/arc/mm/init.c        |  7 -------
 arch/arm/Kconfig          |  1 +
 arch/arm64/Kconfig        |  1 +
 arch/blackfin/Kconfig     |  1 +
 arch/c6x/mm/init.c        |  7 -------
 arch/cris/Kconfig         |  1 +
 arch/frv/mm/init.c        | 11 -----------
 arch/h8300/mm/init.c      |  7 -------
 arch/hexagon/Kconfig      |  1 +
 arch/ia64/Kconfig         |  1 +
 arch/m32r/Kconfig         |  1 +
 arch/m32r/mm/init.c       | 11 -----------
 arch/m68k/mm/init.c       |  7 -------
 arch/metag/Kconfig        |  1 +
 arch/microblaze/mm/init.c |  7 -------
 arch/mips/Kconfig         |  1 +
 arch/mn10300/Kconfig      |  1 +
 arch/nios2/mm/init.c      |  7 -------
 arch/openrisc/mm/init.c   |  7 -------
 arch/parisc/mm/init.c     |  7 -------
 arch/powerpc/mm/mem.c     |  7 -------
 arch/riscv/mm/init.c      |  6 ------
 arch/s390/Kconfig         |  1 +
 arch/score/Kconfig        |  1 +
 arch/sh/mm/init.c         |  7 -------
 arch/sparc/Kconfig        |  1 +
 arch/tile/Kconfig         |  1 +
 arch/um/kernel/mem.c      |  7 -------
 arch/unicore32/Kconfig    |  1 +
 arch/x86/Kconfig          |  1 +
 arch/xtensa/Kconfig       |  1 +
 init/initramfs.c          |  7 +++++++
 usr/Kconfig               |  4 ++++
 34 files changed, 28 insertions(+), 113 deletions(-)

diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
index 9d74520298ab..55f7c8efa962 100644
--- a/arch/alpha/mm/init.c
+++ b/arch/alpha/mm/init.c
@@ -291,11 +291,3 @@ free_initmem(void)
 {
 	free_initmem_default(-1);
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void
-free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index ba145065c579..7bcf23ab1756 100644
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -229,10 +229,3 @@ void __ref free_initmem(void)
 {
 	free_initmem_default(-1);
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3f972e83909b..19d1c5594e2d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -47,6 +47,7 @@ config ARM
 	select HARDIRQS_SW_RESEND
 	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
 	select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
 	select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
 	select HAVE_ARCH_MMAP_RND_BITS if MMU
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index cb03e93f03cf..de93620870af 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -85,6 +85,7 @@ config ARM64
 	select HAVE_ALIGNED_STRUCT_PAGE if SLUB
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_ARCH_BITREVERSE
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_ARCH_HUGE_VMAP
 	select HAVE_ARCH_JUMP_LABEL
 	select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48)
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index d9c2866ba618..6c6dae9fe894 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -15,6 +15,7 @@ config BLACKFIN
 	def_bool y
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_TRACEHOOK
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_GRAPH_TRACER
diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c
index 4cc72b0d1c1d..a11cb657182a 100644
--- a/arch/c6x/mm/init.c
+++ b/arch/c6x/mm/init.c
@@ -66,13 +66,6 @@ void __init mem_init(void)
 	mem_init_print_info(NULL);
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void __init free_initmem(void)
 {
 	free_initmem_default(-1);
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index cd5a0865c97f..5425f77e5664 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -76,6 +76,7 @@ config CRIS
 	select HAVE_DEBUG_BUGVERBOSE if ETRAX_ARCH_V32
 	select HAVE_NMI
 	select DMA_DIRECT_OPS if PCI
+	select HAVE_ARCH_FREE_INITRD_MEM
 
 config HZ
 	int
diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c
index cf464100e838..345edc4dc462 100644
--- a/arch/frv/mm/init.c
+++ b/arch/frv/mm/init.c
@@ -131,14 +131,3 @@ void free_initmem(void)
 	free_initmem_default(-1);
 #endif
 } /* end free_initmem() */
-
-/*****************************************************************************/
-/*
- * free the initial ramdisk memory
- */
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-} /* end free_initrd_mem() */
-#endif
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
index 015287ac8ce8..37574332b202 100644
--- a/arch/h8300/mm/init.c
+++ b/arch/h8300/mm/init.c
@@ -102,13 +102,6 @@ void __init mem_init(void)
 }
 
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void
 free_initmem(void)
 {
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 76d2f20d525e..69a16cd2e253 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -17,6 +17,7 @@ config HEXAGON
 	# GENERIC_ALLOCATOR is used by dma_alloc_coherent()
 	select GENERIC_ALLOCATOR
 	select GENERIC_IRQ_SHOW
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_TRACEHOOK
 	select NO_IOPORT_MAP
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index bbe12a038d21..366ef1dd3cd4 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -28,6 +28,7 @@ config IA64
 	select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
 	select HAVE_FUNCTION_TRACER
 	select TTY
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_DMA_API_DEBUG
 	select HAVE_MEMBLOCK
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index dd84ee194579..9e41bdff45c3 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -21,6 +21,7 @@ config M32R
 	select CPU_NO_EFFICIENT_FFS
 	select DMA_DIRECT_OPS
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
+	select HAVE_ARCH_FREE_INITRD_MEM
 
 config SBUS
 	bool
diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c
index 93abc8c3a46e..e2b5f09209ee 100644
--- a/arch/m32r/mm/init.c
+++ b/arch/m32r/mm/init.c
@@ -139,14 +139,3 @@ void free_initmem(void)
 {
 	free_initmem_default(-1);
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-/*======================================================================*
- * free_initrd_mem() :
- * orig : arch/sh/mm/init.c
- *======================================================================*/
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
index e85acd131fa8..e20bef09258c 100644
--- a/arch/m68k/mm/init.c
+++ b/arch/m68k/mm/init.c
@@ -172,10 +172,3 @@ void __init mem_init(void)
 	mem_init_print_info(NULL);
 	print_memmap();
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig
index c7b62a339539..5be7f1693b1b 100644
--- a/arch/metag/Kconfig
+++ b/arch/metag/Kconfig
@@ -7,6 +7,7 @@ config METAG
 	select GENERIC_IRQ_SHOW
 	select GENERIC_SMP_IDLE_THREAD
 	select HAVE_64BIT_ALIGNED_ACCESS
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_C_RECORDMCOUNT
 	select HAVE_DEBUG_KMEMLEAK
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index df6de7ccdc2e..ea058dfda222 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -187,13 +187,6 @@ void __init setup_memory(void)
 	paging_init();
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void free_initmem(void)
 {
 	free_initmem_default(-1);
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 8128c3b68d6b..c033cd1e0c52 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -27,6 +27,7 @@ config MIPS
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_TIME_VSYSCALL
 	select HANDLE_DOMAIN_IRQ
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_ARCH_JUMP_LABEL
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_MMAP_RND_BITS if MMU
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index e9d8d60bd28b..5aa4f1aa309f 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -6,6 +6,7 @@ config MN10300
 	select HAVE_UID16
 	select GENERIC_IRQ_SHOW
 	select ARCH_WANT_IPC_PARSE_VERSION
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_ARCH_KGDB
 	select GENERIC_ATOMIC64
diff --git a/arch/nios2/mm/init.c b/arch/nios2/mm/init.c
index c92fe4234009..3df75ff8c768 100644
--- a/arch/nios2/mm/init.c
+++ b/arch/nios2/mm/init.c
@@ -82,13 +82,6 @@ void __init mmu_init(void)
 	flush_tlb_all();
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void __ref free_initmem(void)
 {
 	free_initmem_default(-1);
diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index 6972d5d6f23f..c1a3dcf9ad40 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -222,13 +222,6 @@ void __init mem_init(void)
 	return;
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 void free_initmem(void)
 {
 	free_initmem_default(-1);
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index cab32ee824d2..3643399230f3 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -932,10 +932,3 @@ void flush_tlb_all(void)
 	spin_unlock(&sid_lock);
 }
 #endif
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index fe8c61149fb8..e85b2a3cd264 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -404,13 +404,6 @@ void free_initmem(void)
 	free_initmem_default(POISON_FREE_INITMEM);
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 /*
  * This is called when a page has been modified by the kernel.
  * It just marks the page as not i-cache clean.  We do the i-cache
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index c77df8142be2..36f83fe8a726 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -62,9 +62,3 @@ void free_initmem(void)
 {
 	free_initmem_default(0);
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-}
-#endif /* CONFIG_BLK_DEV_INITRD */
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index eaee7087886f..94a9879f1ea8 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -125,6 +125,7 @@ config S390
 	select GENERIC_TIME_VSYSCALL
 	select HAVE_ALIGNED_STRUCT_PAGE if SLUB
 	select HAVE_ARCH_AUDITSYSCALL
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_ARCH_JUMP_LABEL
 	select CPU_NO_EFFICIENT_FFS if !HAVE_MARCH_Z9_109_FEATURES
 	select HAVE_ARCH_SECCOMP_FILTER
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index d881f99c9ddd..2beff03b2429 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -16,6 +16,7 @@ config SCORE
 	select MODULES_USE_ELF_REL
 	select CLONE_BACKWARDS
 	select CPU_NO_EFFICIENT_FFS
+	select HAVE_ARCH_FREE_INITRD_MEM
 
 choice
 	prompt "System type"
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index ce0bbaa7e404..7451459d0725 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -477,13 +477,6 @@ void free_initmem(void)
 	free_initmem_default(-1);
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 #ifdef CONFIG_MEMORY_HOTPLUG
 int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
 		bool want_memblock)
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 8767e45f1b2b..06d543e35caf 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -18,6 +18,7 @@ config SPARC
 	select OF_PROMTREE
 	select HAVE_IDE
 	select HAVE_OPROFILE
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_ARCH_KGDB if !SMP || SPARC64
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_EXIT_THREAD
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index ef9d403cbbe4..7fb36c15762c 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -16,6 +16,7 @@ config TILE
 	select GENERIC_PENDING_IRQ if SMP
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_ARCH_SECCOMP_FILTER
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_CONTEXT_TRACKING
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 3c0e470ea646..2d26eec92126 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -170,13 +170,6 @@ void free_initmem(void)
 {
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
 /* Allocate and free page tables. */
 
 pgd_t *pgd_alloc(struct mm_struct *mm)
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 462e59a7ae78..4da24cf467de 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -4,6 +4,7 @@ config UNICORE32
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select ARCH_MIGHT_HAVE_PC_SERIO
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_MEMBLOCK
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_KERNEL_GZIP
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 0fa71a78ec99..51ce64e6d848 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -111,6 +111,7 @@ config X86
 	select HAVE_ALIGNED_STRUCT_PAGE		if SLUB
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_ARCH_HUGE_VMAP		if X86_64 || X86_PAE
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_ARCH_JUMP_LABEL
 	select HAVE_ARCH_KASAN			if X86_64
 	select HAVE_ARCH_KGDB
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index c921e8bccdc8..01a4a0e42118 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -16,6 +16,7 @@ config XTENSA
 	select GENERIC_PCI_IOMAP
 	select GENERIC_SCHED_CLOCK
 	select GENERIC_STRNCPY_FROM_USER if KASAN
+	select HAVE_ARCH_FREE_INITRD_MEM
 	select HAVE_ARCH_KASAN if MMU
 	select HAVE_CC_STACKPROTECTOR
 	select HAVE_DEBUG_KMEMLEAK
diff --git a/init/initramfs.c b/init/initramfs.c
index 7e99a0038942..d319058eb464 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -526,6 +526,13 @@ extern unsigned long __initramfs_size;
 #include <linux/initrd.h>
 #include <linux/kexec.h>
 
+#ifndef CONFIG_HAVE_ARCH_FREE_INITRD_MEM
+void __init free_initrd_mem(unsigned long start, unsigned long end)
+{
+       free_reserved_area((void *)start, (void *)end, -1, "initrd");
+}
+#endif
+
 static void __init free_initrd(void)
 {
 #ifdef CONFIG_KEXEC_CORE
diff --git a/usr/Kconfig b/usr/Kconfig
index 43658b8a975e..7a94f6df39bf 100644
--- a/usr/Kconfig
+++ b/usr/Kconfig
@@ -233,3 +233,7 @@ config INITRAMFS_COMPRESSION
 	default ".lzma" if RD_LZMA
 	default ".bz2"  if RD_BZIP2
 	default ""
+
+config HAVE_ARCH_FREE_INITRD_MEM
+	bool
+	default n
-- 
2.16.2

From - Thu Nov 08 21:41:12 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Rob Landley <rob@landley.net>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
Date: Wed, 28 Mar 2018 10:58:51 -0500
Lines: 35
Approved: news@gmane.org
Message-ID: <05620fee-e8b5-0668-77b8-da073dc78c40@landley.net>
References: <20180325221853.10839-1-shea@shealevy.com>
 <20180328152714.6103-1-shea@shealevy.com>
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Cc: linux-mips@linux-mips.org, linux-sh@vger.kernel.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Linus Walleij <linus.walleij@linaro.org>, Will Deacon <will.deacon@arm.com>,
 Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>,
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 Geert Uytterhoeven <geert@linux-m68k.org>,
 Catalin Marinas <catalin.marinas@arm.com>, Matt Turner <mattst88@gmail.com>,
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 Thomas Gleixner <tglx@linutronix.de>, Richard Henderson <rth@twiddle.net>,
 linux-cris-kernel@axis.com, Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
 Ralf Baechle <ralf@linu
To: Shea Levy <shea@shealevy.com>, linux-riscv@lists.infradead.org,
 linux-kernel@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel.arc:3690 gmane.linux.kernel:2727695 gmane.linux.ports.mips.general:64259 gmane.linux.ports.sh.devel:56754 gmane.linux.ports.ia64:28758 gmane.linux.ports.hexagon:1607 gmane.linux.kernel.metag:1728 gmane.linux.ports.arm.kernel:641528 gmane.linux.ports.parisc:28433 gmane.linux.ports.alpha:4889 gmane.linux.ports.sparc:27493 gmane.linux.uml.devel:16713 gmane.linux.uml.user:15398 gmane.linux.ports.ppc64.devel:155392
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3690>

On 03/28/2018 10:26 AM, Shea Levy wrote:
> Now only those architectures that have custom initrd free requirements
> need to define free_initrd_mem.
...
> --- a/arch/arc/mm/init.c
> +++ b/arch/arc/mm/init.c
> @@ -229,10 +229,3 @@ void __ref free_initmem(void)
>  {
>  	free_initmem_default(-1);
>  }
> -
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void __init free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 3f972e83909b..19d1c5594e2d 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -47,6 +47,7 @@ config ARM
>  	select HARDIRQS_SW_RESEND
>  	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
>  	select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
> +	select HAVE_ARCH_FREE_INITRD_MEM
>  	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
>  	select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
>  	select HAVE_ARCH_MMAP_RND_BITS if MMU

Isn't this why weak symbols were invented?

Confused,

Rob

From - Thu Nov 08 21:41:12 2018
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From: Shea Levy <shea@shealevy.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
Date: Wed, 28 Mar 2018 12:04:12 -0400
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Cc: linux-mips@linux-mips.org, linux-sh@vger.kernel.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Linus Walleij <linus.walleij@linaro.org>, Will Deacon <will.deacon@arm.com>,
 Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 Christoph Hellwig <hch@infradead.org>,
 Geert Uytterhoeven <geert@linux-m68k.org>,
 Catalin Marinas <catalin.marinas@arm.com>, Matt Turner <mattst88@gmail.com>,
 Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>,
 uclinux-h8-devel@lists.sourceforge.jp,
 Vladimir Murzin <vladimir.murzin@arm.com>, Marc Zyngier <marc.zyngier@arm.com>,
 adi-buildroot-devel@lists.sourceforge.net, Al Viro <viro@zeniv.linux.org.uk>,
 Thomas Gleixner <tglx@linutronix.de>, Richard Henderson <rth@twiddle.net>,
 linux-cris-kernel@axis.com, Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
 Ralf Baechle <ralf@linu
To: Rob Landley <rob@landley.net>, linux-riscv@lists.infradead.org,
 linux-kernel@vger.kernel.org
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--===============2477001509995621341==
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Hi Rob,

Rob Landley <rob@landley.net> writes:

> On 03/28/2018 10:26 AM, Shea Levy wrote:
>> Now only those architectures that have custom initrd free requirements
>> need to define free_initrd_mem.
> ...
>> --- a/arch/arc/mm/init.c
>> +++ b/arch/arc/mm/init.c
>> @@ -229,10 +229,3 @@ void __ref free_initmem(void)
>>  {
>>  	free_initmem_default(-1);
>>  }
>> -
>> -#ifdef CONFIG_BLK_DEV_INITRD
>> -void __init free_initrd_mem(unsigned long start, unsigned long end)
>> -{
>> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
>> -}
>> -#endif
>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>> index 3f972e83909b..19d1c5594e2d 100644
>> --- a/arch/arm/Kconfig
>> +++ b/arch/arm/Kconfig
>> @@ -47,6 +47,7 @@ config ARM
>>  	select HARDIRQS_SW_RESEND
>>  	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
>>  	select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
>> +	select HAVE_ARCH_FREE_INITRD_MEM
>>  	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
>>  	select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
>>  	select HAVE_ARCH_MMAP_RND_BITS if MMU
>
> Isn't this why weak symbols were invented?
>

This approach was suggested by Christoph Hellwig upthread, and seems to
have some precedent elsewhere (e.g. strncasecmp), but I agree weak
symbols seem appropriate here. I'm happy to implement either approach!

>
> Confused,
>
> Rob

Thanks,
Shea

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Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
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To: Rob Landley <rob@landley.net>
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On Wed, Mar 28, 2018 at 10:58:51AM -0500, Rob Landley wrote:
> On 03/28/2018 10:26 AM, Shea Levy wrote:
> > Now only those architectures that have custom initrd free requirements
> > need to define free_initrd_mem.
> ...
> > --- a/arch/arc/mm/init.c
> > +++ b/arch/arc/mm/init.c
> > @@ -229,10 +229,3 @@ void __ref free_initmem(void)
> >  {
> >  	free_initmem_default(-1);
> >  }
> > -
> > -#ifdef CONFIG_BLK_DEV_INITRD
> > -void __init free_initrd_mem(unsigned long start, unsigned long end)
> > -{
> > -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> > -}
> > -#endif
> > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> > index 3f972e83909b..19d1c5594e2d 100644
> > --- a/arch/arm/Kconfig
> > +++ b/arch/arm/Kconfig
> > @@ -47,6 +47,7 @@ config ARM
> >  	select HARDIRQS_SW_RESEND
> >  	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
> >  	select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
> > +	select HAVE_ARCH_FREE_INITRD_MEM
> >  	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
> >  	select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
> >  	select HAVE_ARCH_MMAP_RND_BITS if MMU
> 
> Isn't this why weak symbols were invented?

Weak symbols means that we end up with both the weakly-referenced code
and the arch code in the kernel image.  That's fine if the weak code
is small.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up
According to speedtest.net: 8.21Mbps down 510kbps up

From - Thu Nov 08 21:41:13 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
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Cc: Linux MIPS Mailing List <linux-mips@linux-mips.org>,
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To: Shea Levy <shea@shealevy.com>
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On Wed, Mar 28, 2018 at 8:26 AM, Shea Levy <shea@shealevy.com> wrote:
> Now only those architectures that have custom initrd free requirements
> need to define free_initrd_mem.
>
> Signed-off-by: Shea Levy <shea@shealevy.com>

Yay consolidation! :)

> --- a/usr/Kconfig
> +++ b/usr/Kconfig
> @@ -233,3 +233,7 @@ config INITRAMFS_COMPRESSION
>         default ".lzma" if RD_LZMA
>         default ".bz2"  if RD_BZIP2
>         default ""
> +
> +config HAVE_ARCH_FREE_INITRD_MEM
> +       bool
> +       default n

If you keep the Kconfig, you can leave off "default n", and I'd
suggest adding a help section just to describe what the per-arch
responsibilities are when select-ing the config. (See
HAVE_ARCH_SECCOMP_FILTER for an example.)

-Kees

-- 
Kees Cook
Pixel Security

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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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> On 27 Mar 2018, at 17:38, Michal Hocko <mhocko@kernel.org> wrote:
>=20
> On Tue 27-03-18 16:51:08, Ilya Smith wrote:
>>=20
>>> On 27 Mar 2018, at 10:24, Michal Hocko <mhocko@kernel.org> wrote:
>>>=20
>>> On Mon 26-03-18 22:45:31, Ilya Smith wrote:
>>>>=20
>>>>> On 26 Mar 2018, at 11:46, Michal Hocko <mhocko@kernel.org> wrote:
>>>>>=20
>>>>> On Fri 23-03-18 20:55:49, Ilya Smith wrote:
>>>>>>=20
>>>>>>> On 23 Mar 2018, at 15:48, Matthew Wilcox <willy@infradead.org> =
wrote:
>>>>>>>=20
>>>>>>> On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
>>>>>>>> Current implementation doesn't randomize address returned by =
mmap.
>>>>>>>> All the entropy ends with choosing mmap_base_addr at the =
process
>>>>>>>> creation. After that mmap build very predictable layout of =
address
>>>>>>>> space. It allows to bypass ASLR in many cases. This patch make
>>>>>>>> randomization of address on any mmap call.
>>>>>>>=20
>>>>>>> Why should this be done in the kernel rather than libc?  libc is =
perfectly
>>>>>>> capable of specifying random numbers in the first argument of =
mmap.
>>>>>> Well, there is following reasons:
>>>>>> 1. It should be done in any libc implementation, what is not =
possible IMO;
>>>>>=20
>>>>> Is this really so helpful?
>>>>=20
>>>> Yes, ASLR is one of very important mitigation techniques which are =
really used=20
>>>> to protect applications. If there is no ASLR, it is very easy to =
exploit=20
>>>> vulnerable application and compromise the system. We can=E2=80=99t =
just fix all the=20
>>>> vulnerabilities right now, thats why we have mitigations - =
techniques which are=20
>>>> makes exploitation more hard or impossible in some cases.
>>>>=20
>>>> Thats why it is helpful.
>>>=20
>>> I am not questioning ASLR in general. I am asking whether we really =
need
>>> per mmap ASLR in general. I can imagine that some environments want =
to
>>> pay the additional price and other side effects, but considering =
this
>>> can be achieved by libc, why to add more code to the kernel?
>>=20
>> I believe this is the only one right place for it. Adding these 200+ =
lines of=20
>> code we give this feature for any user - on desktop, on server, on =
IoT device,=20
>> on SCADA, etc. But if only glibc will implement =E2=80=98user-mode-aslr=
=E2=80=99 IoT and SCADA=20
>> devices will never get it.
>=20
> I guess it would really help if you could be more specific about the
> class of security issues this would help to mitigate. My first
> understanding was that we we need some randomization between program
> executable segments to reduce the attack space when a single address
> leaks and you know the segments layout (ordering). But why do we need
> _all_ mmaps to be randomized. Because that complicates the
> implementation consirably for different reasons you have mentioned
> earlier.
>=20

There are following reasons:
1) To protect layout if one region was leaked (as you said).=20
2) To protect against exploitation of Out-of-bounds vulnerabilities in =
some=20
cases (CWE-125 , CWE-787)
3) To protect against exploitation of Buffer Overflows in some cases =
(CWE-120)
4) To protect application in cases when attacker need to guess the =
address=20
(paper ASLR-NG by  Hector Marco-Gisbert and  Ismael Ripoll-Ripoll)
And may be more cases.

> Do you have any specific CVE that would be mitigated by this
> randomization approach?
> I am sorry, I am not a security expert to see all the cosequences but =
a
> vague - the more randomization the better - sounds rather weak to me.

It is hard to name concrete CVE number, sorry. Mitigations are made to =
prevent=20
exploitation but not to fix vulnerabilities. It means good mitigation =
will make=20
vulnerable application crash but not been compromised in most cases. =
This means=20
the better randomization, the less successful exploitation rate.


Thanks,
Ilya



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To: "Theodore Y. Ts'o" <tytso@mit.edu>
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> On 28 Mar 2018, at 01:16, Theodore Y. Ts'o <tytso@mit.edu> wrote:
>=20
> On Tue, Mar 27, 2018 at 04:51:08PM +0300, Ilya Smith wrote:
>>> /dev/[u]random is not sufficient?
>>=20
>> Using /dev/[u]random makes 3 syscalls - open, read, close. This is a =
performance
>> issue.
>=20
> You may want to take a look at the getrandom(2) system call, which is
> the recommended way getting secure random numbers from the kernel.
>=20
>>> Well, I am pretty sure userspace can implement proper free ranges
>>> tracking=E2=80=A6
>>=20
>> I think we need to know what libc developers will say on implementing =
ASLR in=20
>> user-mode. I am pretty sure they will say =E2=80=98nether=E2=80=99 or =
=E2=80=98some-day=E2=80=99. And problem=20
>> of ASLR will stay forever.
>=20
> Why can't you send patches to the libc developers?
>=20
> Regards,
>=20
> 						- Ted

I still believe the issue is on kernel side, not in library.

Best regards,
Ilya



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Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
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To: Russell King - ARM Linux <linux@armlinux.org.uk>
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On 03/28/2018 11:48 AM, Russell King - ARM Linux wrote:
> On Wed, Mar 28, 2018 at 10:58:51AM -0500, Rob Landley wrote:
>> On 03/28/2018 10:26 AM, Shea Levy wrote:
>>> Now only those architectures that have custom initrd free requirements
>>> need to define free_initrd_mem.
>> ...
>>> --- a/arch/arc/mm/init.c
>>> +++ b/arch/arc/mm/init.c
>>> @@ -229,10 +229,3 @@ void __ref free_initmem(void)
>>>  {
>>>  	free_initmem_default(-1);
>>>  }
>>> -
>>> -#ifdef CONFIG_BLK_DEV_INITRD
>>> -void __init free_initrd_mem(unsigned long start, unsigned long end)
>>> -{
>>> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
>>> -}
>>> -#endif
>>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>>> index 3f972e83909b..19d1c5594e2d 100644
>>> --- a/arch/arm/Kconfig
>>> +++ b/arch/arm/Kconfig
>>> @@ -47,6 +47,7 @@ config ARM
>>>  	select HARDIRQS_SW_RESEND
>>>  	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
>>>  	select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
>>> +	select HAVE_ARCH_FREE_INITRD_MEM
>>>  	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
>>>  	select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
>>>  	select HAVE_ARCH_MMAP_RND_BITS if MMU
>>
>> Isn't this why weak symbols were invented?
> 
> Weak symbols means that we end up with both the weakly-referenced code
> and the arch code in the kernel image.  That's fine if the weak code
> is small.

The kernel's been able to build with link time garbage collection since 2016:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b67067f1176d

Wouldn't that remove the unused one?

Rob

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Subject: [PATCH v4 13/16] parisc: Use generic free_initrd_mem.
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Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/parisc/mm/init.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index cab32ee824d2..3643399230f3 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -932,10 +932,3 @@ void flush_tlb_all(void)
 	spin_unlock(&sid_lock);
 }
 #endif
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-- 
2.16.2



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From: Russell King - ARM Linux <linux@armlinux.org.uk>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
Date: Wed, 28 Mar 2018 23:14:01 +0100
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References: <20180325221853.10839-1-shea@shealevy.com>
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Cc: linux-mips@linux-mips.org, linux-sh@vger.kernel.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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 linux-kernel@vger.kerne
To: Rob Landley <rob@landley.net>
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On Wed, Mar 28, 2018 at 02:04:22PM -0500, Rob Landley wrote:
> 
> 
> On 03/28/2018 11:48 AM, Russell King - ARM Linux wrote:
> > On Wed, Mar 28, 2018 at 10:58:51AM -0500, Rob Landley wrote:
> >> On 03/28/2018 10:26 AM, Shea Levy wrote:
> >>> Now only those architectures that have custom initrd free requirements
> >>> need to define free_initrd_mem.
> >> ...
> >>> --- a/arch/arc/mm/init.c
> >>> +++ b/arch/arc/mm/init.c
> >>> @@ -229,10 +229,3 @@ void __ref free_initmem(void)
> >>>  {
> >>>  	free_initmem_default(-1);
> >>>  }
> >>> -
> >>> -#ifdef CONFIG_BLK_DEV_INITRD
> >>> -void __init free_initrd_mem(unsigned long start, unsigned long end)
> >>> -{
> >>> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> >>> -}
> >>> -#endif
> >>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> >>> index 3f972e83909b..19d1c5594e2d 100644
> >>> --- a/arch/arm/Kconfig
> >>> +++ b/arch/arm/Kconfig
> >>> @@ -47,6 +47,7 @@ config ARM
> >>>  	select HARDIRQS_SW_RESEND
> >>>  	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
> >>>  	select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
> >>> +	select HAVE_ARCH_FREE_INITRD_MEM
> >>>  	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
> >>>  	select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
> >>>  	select HAVE_ARCH_MMAP_RND_BITS if MMU
> >>
> >> Isn't this why weak symbols were invented?
> > 
> > Weak symbols means that we end up with both the weakly-referenced code
> > and the arch code in the kernel image.  That's fine if the weak code
> > is small.
> 
> The kernel's been able to build with link time garbage collection since 2016:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b67067f1176d
> 
> Wouldn't that remove the unused one?

Probably, if anyone bothered to use that, which they don't.

LD_DEAD_CODE_DATA_ELIMINATION is a symbol without a prompt, and from
what I can see, nothing selects it.  Therefore, the symbol is always
disabled, and so the feature never gets used in mainline kernels.

Brings up the obvious question - why is it there if it's completely
unused?  (Maybe to cause confusion, and allowing a justification
for __weak ?)

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up
According to speedtest.net: 8.21Mbps down 510kbps up

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Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
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Cc: linux-mips@linux-mips.org, linux-sh@vger.kernel.org,
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 Linus Walleij <linus.walleij@linaro.org>, Will Deacon <will.deacon@arm.com>,
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To: Russell King - ARM Linux <linux@armlinux.org.uk>
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On Thu, Mar 29, 2018 at 9:14 AM, Russell King - ARM Linux
<linux@armlinux.org.uk> wrote:
> On Wed, Mar 28, 2018 at 02:04:22PM -0500, Rob Landley wrote:
>>
>>
>> On 03/28/2018 11:48 AM, Russell King - ARM Linux wrote:
>> > On Wed, Mar 28, 2018 at 10:58:51AM -0500, Rob Landley wrote:
>> >> On 03/28/2018 10:26 AM, Shea Levy wrote:
>> >>> Now only those architectures that have custom initrd free requirements
>> >>> need to define free_initrd_mem.
>> >> ...
>> >>> --- a/arch/arc/mm/init.c
>> >>> +++ b/arch/arc/mm/init.c
>> >>> @@ -229,10 +229,3 @@ void __ref free_initmem(void)
>> >>>  {
>> >>>   free_initmem_default(-1);
>> >>>  }
>> >>> -
>> >>> -#ifdef CONFIG_BLK_DEV_INITRD
>> >>> -void __init free_initrd_mem(unsigned long start, unsigned long end)
>> >>> -{
>> >>> - free_reserved_area((void *)start, (void *)end, -1, "initrd");
>> >>> -}
>> >>> -#endif
>> >>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>> >>> index 3f972e83909b..19d1c5594e2d 100644
>> >>> --- a/arch/arm/Kconfig
>> >>> +++ b/arch/arm/Kconfig
>> >>> @@ -47,6 +47,7 @@ config ARM
>> >>>   select HARDIRQS_SW_RESEND
>> >>>   select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
>> >>>   select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
>> >>> + select HAVE_ARCH_FREE_INITRD_MEM
>> >>>   select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
>> >>>   select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
>> >>>   select HAVE_ARCH_MMAP_RND_BITS if MMU
>> >>
>> >> Isn't this why weak symbols were invented?
>> >
>> > Weak symbols means that we end up with both the weakly-referenced code
>> > and the arch code in the kernel image.  That's fine if the weak code
>> > is small.
>>
>> The kernel's been able to build with link time garbage collection since 2016:
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b67067f1176d
>>
>> Wouldn't that remove the unused one?
>
> Probably, if anyone bothered to use that, which they don't.
>
> LD_DEAD_CODE_DATA_ELIMINATION is a symbol without a prompt, and from
> what I can see, nothing selects it.  Therefore, the symbol is always
> disabled, and so the feature never gets used in mainline kernels.
>
> Brings up the obvious question - why is it there if it's completely
> unused?  (Maybe to cause confusion, and allowing a justification
> for __weak ?)

IIRC Nick had some patches to do the arch enablement for powerpc, but
I'm not sure what happened to them though. I suspect it just fell down
Nick's ever growing TODO list.

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Cc: Kate Stewart <kstewart@linuxfoundation.org>,
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 linux-sh <linux-sh@vger.kernel.org>, Ilya Smith <blackzert@gmail.com>,
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> The default limit of only 65536 VMAs will also quickly come into play
> if consecutive anon mmaps don't get merged. Of course this can be
> raised, but it has significant resource and performance (fork) costs.

Could the random mmap address chooser look for how many existing
VMAs have space before/after and the right attributes to merge with the
new one you want to create? If this is above some threshold (100?) then
pick one of them randomly and allocate the new address so that it will
merge from below/above with an existing one.

That should still give you a very high degree of randomness, but prevent
out of control numbers of VMAs from being created.

-Tony


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Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
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On Thu, 29 Mar 2018 09:37:52 +1100
Oliver <oohall@gmail.com> wrote:

> On Thu, Mar 29, 2018 at 9:14 AM, Russell King - ARM Linux
> <linux@armlinux.org.uk> wrote:
> > On Wed, Mar 28, 2018 at 02:04:22PM -0500, Rob Landley wrote:  
> >>
> >>
> >> On 03/28/2018 11:48 AM, Russell King - ARM Linux wrote:  
> >> > On Wed, Mar 28, 2018 at 10:58:51AM -0500, Rob Landley wrote:  
> >> >> On 03/28/2018 10:26 AM, Shea Levy wrote:  
> >> >>> Now only those architectures that have custom initrd free requirements
> >> >>> need to define free_initrd_mem.  
> >> >> ...  
> >> >>> --- a/arch/arc/mm/init.c
> >> >>> +++ b/arch/arc/mm/init.c
> >> >>> @@ -229,10 +229,3 @@ void __ref free_initmem(void)
> >> >>>  {
> >> >>>   free_initmem_default(-1);
> >> >>>  }
> >> >>> -
> >> >>> -#ifdef CONFIG_BLK_DEV_INITRD
> >> >>> -void __init free_initrd_mem(unsigned long start, unsigned long end)
> >> >>> -{
> >> >>> - free_reserved_area((void *)start, (void *)end, -1, "initrd");
> >> >>> -}
> >> >>> -#endif
> >> >>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> >> >>> index 3f972e83909b..19d1c5594e2d 100644
> >> >>> --- a/arch/arm/Kconfig
> >> >>> +++ b/arch/arm/Kconfig
> >> >>> @@ -47,6 +47,7 @@ config ARM
> >> >>>   select HARDIRQS_SW_RESEND
> >> >>>   select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
> >> >>>   select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
> >> >>> + select HAVE_ARCH_FREE_INITRD_MEM
> >> >>>   select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
> >> >>>   select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
> >> >>>   select HAVE_ARCH_MMAP_RND_BITS if MMU  
> >> >>
> >> >> Isn't this why weak symbols were invented?  
> >> >
> >> > Weak symbols means that we end up with both the weakly-referenced code
> >> > and the arch code in the kernel image.  That's fine if the weak code
> >> > is small.  
> >>
> >> The kernel's been able to build with link time garbage collection since 2016:
> >>
> >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b67067f1176d
> >>
> >> Wouldn't that remove the unused one?  
> >
> > Probably, if anyone bothered to use that, which they don't.
> >
> > LD_DEAD_CODE_DATA_ELIMINATION is a symbol without a prompt, and from
> > what I can see, nothing selects it.  Therefore, the symbol is always
> > disabled, and so the feature never gets used in mainline kernels.
> >
> > Brings up the obvious question - why is it there if it's completely
> > unused?  (Maybe to cause confusion, and allowing a justification
> > for __weak ?)  

Well weak symbols have been used long before it was added.

> IIRC Nick had some patches to do the arch enablement for powerpc, but
> I'm not sure what happened to them though. I suspect it just fell down
> Nick's ever growing TODO list.

Yeah I had started some patches for powerpc and x86 that have ended up
on the back burner. There's been some MIPS people playing with it too.

For the kernel, LD_DEAD_CODE_DATA_ELIMINATION is not great. It can save
a little, but you get issues like any exception table entry or bug table
entry in a function will create a reference back to the function, so the
linker can't trim it away even if nothing else references it.

I'll try to take another look at it within the next few months and
remove it if I can't make progress.

Nicolas Pitre has been doing some much better work on dead code using
real LTO.

Thanks,
Nick

From - Thu Nov 08 21:41:13 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
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Cc: Linux MIPS Mailing List <linux-mips@linux-mips.org>,
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To: Kees Cook <keescook@chromium.org>
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On Wed, Mar 28, 2018 at 09:55:07AM -0700, Kees Cook wrote:
>On Wed, Mar 28, 2018 at 8:26 AM, Shea Levy <shea@shealevy.com> wrote:
>> Now only those architectures that have custom initrd free requirements
>> need to define free_initrd_mem.
>>
>> Signed-off-by: Shea Levy <shea@shealevy.com>
>
>Yay consolidation! :)
>
>> --- a/usr/Kconfig
>> +++ b/usr/Kconfig
>> @@ -233,3 +233,7 @@ config INITRAMFS_COMPRESSION
>>         default ".lzma" if RD_LZMA
>>         default ".bz2"  if RD_BZIP2
>>         default ""
>> +
>> +config HAVE_ARCH_FREE_INITRD_MEM
>> +       bool
>> +       default n
>
>If you keep the Kconfig, you can leave off "default n", and I'd
>suggest adding a help section just to describe what the per-arch
>responsibilities are when select-ing the config. (See
>HAVE_ARCH_SECCOMP_FILTER for an example.)
>

One question about this change.

The original code would "select" HAVE_ARCH_FREE_INITRD_MEM on those arch.
After this change, we need to manually "select" this?

>-Kees
>
>-- 
>Kees Cook
>Pixel Security

-- 
Wei Yang
Help you, Help me

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The generic implementation is functionally identical.

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/parisc/mm/init.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index cab32ee824d2..3643399230f3 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -932,10 +932,3 @@ void flush_tlb_all(void)
 	spin_unlock(&sid_lock);
 }
 #endif
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-- 
2.16.2



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On Thu, Mar 29, 2018 at 09:37:52AM +1100, Oliver wrote:
> On Thu, Mar 29, 2018 at 9:14 AM, Russell King - ARM Linux
> <linux@armlinux.org.uk> wrote:
> > On Wed, Mar 28, 2018 at 02:04:22PM -0500, Rob Landley wrote:
> >>
> >>
> >> On 03/28/2018 11:48 AM, Russell King - ARM Linux wrote:
> >> > On Wed, Mar 28, 2018 at 10:58:51AM -0500, Rob Landley wrote:
> >> >> On 03/28/2018 10:26 AM, Shea Levy wrote:
> >> >>> Now only those architectures that have custom initrd free requirements
> >> >>> need to define free_initrd_mem.
> >> >> ...
> >> >>> --- a/arch/arc/mm/init.c
> >> >>> +++ b/arch/arc/mm/init.c
> >> >>> @@ -229,10 +229,3 @@ void __ref free_initmem(void)
> >> >>>  {
> >> >>>   free_initmem_default(-1);
> >> >>>  }
> >> >>> -
> >> >>> -#ifdef CONFIG_BLK_DEV_INITRD
> >> >>> -void __init free_initrd_mem(unsigned long start, unsigned long end)
> >> >>> -{
> >> >>> - free_reserved_area((void *)start, (void *)end, -1, "initrd");
> >> >>> -}
> >> >>> -#endif
> >> >>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> >> >>> index 3f972e83909b..19d1c5594e2d 100644
> >> >>> --- a/arch/arm/Kconfig
> >> >>> +++ b/arch/arm/Kconfig
> >> >>> @@ -47,6 +47,7 @@ config ARM
> >> >>>   select HARDIRQS_SW_RESEND
> >> >>>   select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
> >> >>>   select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
> >> >>> + select HAVE_ARCH_FREE_INITRD_MEM
> >> >>>   select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
> >> >>>   select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
> >> >>>   select HAVE_ARCH_MMAP_RND_BITS if MMU
> >> >>
> >> >> Isn't this why weak symbols were invented?
> >> >
> >> > Weak symbols means that we end up with both the weakly-referenced code
> >> > and the arch code in the kernel image.  That's fine if the weak code
> >> > is small.
> >>
> >> The kernel's been able to build with link time garbage collection since 2016:
> >>
> >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b67067f1176d
> >>
> >> Wouldn't that remove the unused one?
> >
> > Probably, if anyone bothered to use that, which they don't.
> >
> > LD_DEAD_CODE_DATA_ELIMINATION is a symbol without a prompt, and from
> > what I can see, nothing selects it.  Therefore, the symbol is always
> > disabled, and so the feature never gets used in mainline kernels.
> >
> > Brings up the obvious question - why is it there if it's completely
> > unused?  (Maybe to cause confusion, and allowing a justification
> > for __weak ?)
> 
> IIRC Nick had some patches to do the arch enablement for powerpc, but
> I'm not sure what happened to them though. I suspect it just fell down
> Nick's ever growing TODO list.

I've given it a go on ARM, marking every linker-built table with KEEP()
and comparing the System.map files.  The resulting kernel is around
150k smaller, which seems good.

However, it doesn't boot - and I don't know why.  Booting the kernel
under kvmtool in a VM using virtio-console, I can find no way to get
any kernel messages out of it.  Using lkvm debug, I can see that the
PC is stuck inside die(), and that's the only information I have.
It dies before bringing up the other CPUs, so it's a very early death.

I don't think other console types are available under ARM64.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up
According to speedtest.net: 8.21Mbps down 510kbps up

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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
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Cc: Linux MIPS Mailing List <linux-mips@linux-mips.org>,
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To: Russell King - ARM Linux <linux@armlinux.org.uk>
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On Thu, Mar 29, 2018 at 5:27 PM, Russell King - ARM Linux
<linux@armlinux.org.uk> wrote:
> On Thu, Mar 29, 2018 at 09:37:52AM +1100, Oliver wrote:
>> On Thu, Mar 29, 2018 at 9:14 AM, Russell King - ARM Linux
>> <linux@armlinux.org.uk> wrote:
>> > On Wed, Mar 28, 2018 at 02:04:22PM -0500, Rob Landley wrote:
>> >> On 03/28/2018 11:48 AM, Russell King - ARM Linux wrote:
>> >> > On Wed, Mar 28, 2018 at 10:58:51AM -0500, Rob Landley wrote:
>> >> >> On 03/28/2018 10:26 AM, Shea Levy wrote:
>> >> >>> Now only those architectures that have custom initrd free requirements
>> >> >>> need to define free_initrd_mem.
>> >> >> ...
>> >> >>> --- a/arch/arc/mm/init.c
>> >> >>> +++ b/arch/arc/mm/init.c
>> >> >>> @@ -229,10 +229,3 @@ void __ref free_initmem(void)
>> >> >>>  {
>> >> >>>   free_initmem_default(-1);
>> >> >>>  }
>> >> >>> -
>> >> >>> -#ifdef CONFIG_BLK_DEV_INITRD
>> >> >>> -void __init free_initrd_mem(unsigned long start, unsigned long end)
>> >> >>> -{
>> >> >>> - free_reserved_area((void *)start, (void *)end, -1, "initrd");
>> >> >>> -}
>> >> >>> -#endif
>> >> >>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>> >> >>> index 3f972e83909b..19d1c5594e2d 100644
>> >> >>> --- a/arch/arm/Kconfig
>> >> >>> +++ b/arch/arm/Kconfig
>> >> >>> @@ -47,6 +47,7 @@ config ARM
>> >> >>>   select HARDIRQS_SW_RESEND
>> >> >>>   select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
>> >> >>>   select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
>> >> >>> + select HAVE_ARCH_FREE_INITRD_MEM
>> >> >>>   select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
>> >> >>>   select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
>> >> >>>   select HAVE_ARCH_MMAP_RND_BITS if MMU
>> >> >>
>> >> >> Isn't this why weak symbols were invented?
>> >> >
>> >> > Weak symbols means that we end up with both the weakly-referenced code
>> >> > and the arch code in the kernel image.  That's fine if the weak code
>> >> > is small.
>> >>
>> >> The kernel's been able to build with link time garbage collection since 2016:
>> >>
>> >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b67067f1176d
>> >>
>> >> Wouldn't that remove the unused one?
>> >
>> > Probably, if anyone bothered to use that, which they don't.
>> >
>> > LD_DEAD_CODE_DATA_ELIMINATION is a symbol without a prompt, and from
>> > what I can see, nothing selects it.  Therefore, the symbol is always
>> > disabled, and so the feature never gets used in mainline kernels.
>> >
>> > Brings up the obvious question - why is it there if it's completely
>> > unused?  (Maybe to cause confusion, and allowing a justification
>> > for __weak ?)
>>
>> IIRC Nick had some patches to do the arch enablement for powerpc, but
>> I'm not sure what happened to them though. I suspect it just fell down
>> Nick's ever growing TODO list.
>
> I've given it a go on ARM, marking every linker-built table with KEEP()
> and comparing the System.map files.  The resulting kernel is around
> 150k smaller, which seems good.
>
> However, it doesn't boot - and I don't know why.  Booting the kernel
> under kvmtool in a VM using virtio-console, I can find no way to get
> any kernel messages out of it.  Using lkvm debug, I can see that the
> PC is stuck inside die(), and that's the only information I have.
> It dies before bringing up the other CPUs, so it's a very early death.
>
> I don't think other console types are available under ARM64.

earlycon?

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

From - Thu Nov 08 21:41:14 2018
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From: Russell King - ARM Linux <linux@armlinux.org.uk>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
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On Thu, Mar 29, 2018 at 05:43:47PM +0200, Geert Uytterhoeven wrote:
> On Thu, Mar 29, 2018 at 5:27 PM, Russell King - ARM Linux
> <linux@armlinux.org.uk> wrote:
> > On Thu, Mar 29, 2018 at 09:37:52AM +1100, Oliver wrote:
> >> On Thu, Mar 29, 2018 at 9:14 AM, Russell King - ARM Linux
> >> <linux@armlinux.org.uk> wrote:
> >> > On Wed, Mar 28, 2018 at 02:04:22PM -0500, Rob Landley wrote:
> >> >> On 03/28/2018 11:48 AM, Russell King - ARM Linux wrote:
> >> >> > On Wed, Mar 28, 2018 at 10:58:51AM -0500, Rob Landley wrote:
> >> >> >> On 03/28/2018 10:26 AM, Shea Levy wrote:
> >> >> >>> Now only those architectures that have custom initrd free requirements
> >> >> >>> need to define free_initrd_mem.
> >> >> >> ...
> >> >> >>> --- a/arch/arc/mm/init.c
> >> >> >>> +++ b/arch/arc/mm/init.c
> >> >> >>> @@ -229,10 +229,3 @@ void __ref free_initmem(void)
> >> >> >>>  {
> >> >> >>>   free_initmem_default(-1);
> >> >> >>>  }
> >> >> >>> -
> >> >> >>> -#ifdef CONFIG_BLK_DEV_INITRD
> >> >> >>> -void __init free_initrd_mem(unsigned long start, unsigned long end)
> >> >> >>> -{
> >> >> >>> - free_reserved_area((void *)start, (void *)end, -1, "initrd");
> >> >> >>> -}
> >> >> >>> -#endif
> >> >> >>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> >> >> >>> index 3f972e83909b..19d1c5594e2d 100644
> >> >> >>> --- a/arch/arm/Kconfig
> >> >> >>> +++ b/arch/arm/Kconfig
> >> >> >>> @@ -47,6 +47,7 @@ config ARM
> >> >> >>>   select HARDIRQS_SW_RESEND
> >> >> >>>   select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
> >> >> >>>   select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
> >> >> >>> + select HAVE_ARCH_FREE_INITRD_MEM
> >> >> >>>   select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
> >> >> >>>   select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
> >> >> >>>   select HAVE_ARCH_MMAP_RND_BITS if MMU
> >> >> >>
> >> >> >> Isn't this why weak symbols were invented?
> >> >> >
> >> >> > Weak symbols means that we end up with both the weakly-referenced code
> >> >> > and the arch code in the kernel image.  That's fine if the weak code
> >> >> > is small.
> >> >>
> >> >> The kernel's been able to build with link time garbage collection since 2016:
> >> >>
> >> >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b67067f1176d
> >> >>
> >> >> Wouldn't that remove the unused one?
> >> >
> >> > Probably, if anyone bothered to use that, which they don't.
> >> >
> >> > LD_DEAD_CODE_DATA_ELIMINATION is a symbol without a prompt, and from
> >> > what I can see, nothing selects it.  Therefore, the symbol is always
> >> > disabled, and so the feature never gets used in mainline kernels.
> >> >
> >> > Brings up the obvious question - why is it there if it's completely
> >> > unused?  (Maybe to cause confusion, and allowing a justification
> >> > for __weak ?)
> >>
> >> IIRC Nick had some patches to do the arch enablement for powerpc, but
> >> I'm not sure what happened to them though. I suspect it just fell down
> >> Nick's ever growing TODO list.
> >
> > I've given it a go on ARM, marking every linker-built table with KEEP()
> > and comparing the System.map files.  The resulting kernel is around
> > 150k smaller, which seems good.
> >
> > However, it doesn't boot - and I don't know why.  Booting the kernel
> > under kvmtool in a VM using virtio-console, I can find no way to get
> > any kernel messages out of it.  Using lkvm debug, I can see that the
> > PC is stuck inside die(), and that's the only information I have.
> > It dies before bringing up the other CPUs, so it's a very early death.
> >
> > I don't think other console types are available under ARM64.
> 
> earlycon?

Through what - as I say above, I think the only thing that's present is
virtio-console, and the virtio stack only get initialised much later in
boot.

Eg, there's the memory-based virtio driver which interfaces any virtio
driver to a memory-based ring structures for communication with the host
(drivers/virtio/virtio_mmio.c) which is initialised at module_init()
time, and so isn't available for earlycon.

I don't think merely changing the module_init() calls in the appropriate
virtio bits will suffice - it's why I pointed out that it dies before
SMP initialisation, which also means that it dies before we start
running the initcalls for subsystems and drivers.

I'm not aware of there being an emulated UART in the guest's address
space, so serial based stuff doesn't work.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up
According to speedtest.net: 8.21Mbps down 510kbps up

From - Thu Nov 08 21:41:14 2018
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From: Rob Landley <rob@landley.net>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
Date: Thu, 29 Mar 2018 11:39:24 -0500
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Cc: linux-mips@linux-mips.org, linux-sh@vger.kernel.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Linus Walleij <linus.walleij@linaro.org>, Will Deacon <will.deacon@arm.com>,
 Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 Christoph Hellwig <hch@infradead.org>,
 Geert Uytterhoeven <geert@linux-m68k.org>,
 Catalin Marinas <catalin.marinas@arm.com>, Matt Turner <mattst88@gmail.com>,
 Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>,
 uclinux-h8-devel@lists.sourceforge.jp,
 Vladimir Murzin <vladimir.murzin@arm.com>, Marc Zyngier <marc.zyngier@arm.com>,
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 Thomas Gleixner <tglx@linutronix.de>, Richard Henderson <rth@twiddle.net>,
 linux-cris-kernel@axis.com, Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
 linux-kernel@vger.kerne
To: Russell King - ARM Linux <linux@armlinux.org.uk>
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On 03/28/2018 05:14 PM, Russell King - ARM Linux wrote:
> On Wed, Mar 28, 2018 at 02:04:22PM -0500, Rob Landley wrote:
>>
>>
>> On 03/28/2018 11:48 AM, Russell King - ARM Linux wrote:
>>> On Wed, Mar 28, 2018 at 10:58:51AM -0500, Rob Landley wrote:
>>>> On 03/28/2018 10:26 AM, Shea Levy wrote:
>>>>> Now only those architectures that have custom initrd free requirements
>>>>> need to define free_initrd_mem.
>>>> ...
>>>>> --- a/arch/arc/mm/init.c
>>>>> +++ b/arch/arc/mm/init.c
>>>>> @@ -229,10 +229,3 @@ void __ref free_initmem(void)
>>>>>  {
>>>>>  	free_initmem_default(-1);
>>>>>  }
>>>>> -
>>>>> -#ifdef CONFIG_BLK_DEV_INITRD
>>>>> -void __init free_initrd_mem(unsigned long start, unsigned long end)
>>>>> -{
>>>>> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
>>>>> -}
>>>>> -#endif
>>>>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>>>>> index 3f972e83909b..19d1c5594e2d 100644
>>>>> --- a/arch/arm/Kconfig
>>>>> +++ b/arch/arm/Kconfig
>>>>> @@ -47,6 +47,7 @@ config ARM
>>>>>  	select HARDIRQS_SW_RESEND
>>>>>  	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
>>>>>  	select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
>>>>> +	select HAVE_ARCH_FREE_INITRD_MEM
>>>>>  	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
>>>>>  	select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
>>>>>  	select HAVE_ARCH_MMAP_RND_BITS if MMU
>>>>
>>>> Isn't this why weak symbols were invented?
>>>
>>> Weak symbols means that we end up with both the weakly-referenced code
>>> and the arch code in the kernel image.  That's fine if the weak code
>>> is small.
>>
>> The kernel's been able to build with link time garbage collection since 2016:
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b67067f1176d
>>
>> Wouldn't that remove the unused one?
> 
> Probably, if anyone bothered to use that, which they don't.
> 
> LD_DEAD_CODE_DATA_ELIMINATION is a symbol without a prompt, and from
> what I can see, nothing selects it.  Therefore, the symbol is always
> disabled, and so the feature never gets used in mainline kernels.

It looks like there are per-architecture linker scripts that need to be updated?
So if an architecture supports it, it's always done (well, it probes for the
toolchain supporting the flag). And if the architecture doesn't support it, the
linker script needs to be updated to mark sections with "I know nothing seems to
reference this at the ELF level but keep it anyway, we're pulling an assembly
trick".

> Brings up the obvious question - why is it there if it's completely
> unused?  (Maybe to cause confusion, and allowing a justification
> for __weak ?)

Presumably it will become the default on architectures as their linker scripts
are converted. Once they're all converted the config symbol can go away. (Given
the move to requiring gcc 4.7 or whatever it is, there can't be an architecture
depending on a toolchain that _doesn't_ support it after that point. I doubt you
can pair gcc 4.7 with a >12 year old binutils and expect good things...)

Rob

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Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
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On Thu, 29 Mar 2018 16:58:27 +0100,
Russell King - ARM Linux wrote:
> 
> On Thu, Mar 29, 2018 at 05:43:47PM +0200, Geert Uytterhoeven wrote:
> > On Thu, Mar 29, 2018 at 5:27 PM, Russell King - ARM Linux
> > <linux@armlinux.org.uk> wrote:
> > > On Thu, Mar 29, 2018 at 09:37:52AM +1100, Oliver wrote:
> > >> On Thu, Mar 29, 2018 at 9:14 AM, Russell King - ARM Linux
> > >> <linux@armlinux.org.uk> wrote:
> > >> > On Wed, Mar 28, 2018 at 02:04:22PM -0500, Rob Landley wrote:
> > >> >> On 03/28/2018 11:48 AM, Russell King - ARM Linux wrote:
> > >> >> > On Wed, Mar 28, 2018 at 10:58:51AM -0500, Rob Landley wrote:
> > >> >> >> On 03/28/2018 10:26 AM, Shea Levy wrote:
> > >> >> >>> Now only those architectures that have custom initrd free requirements
> > >> >> >>> need to define free_initrd_mem.
> > >> >> >> ...
> > >> >> >>> --- a/arch/arc/mm/init.c
> > >> >> >>> +++ b/arch/arc/mm/init.c
> > >> >> >>> @@ -229,10 +229,3 @@ void __ref free_initmem(void)
> > >> >> >>>  {
> > >> >> >>>   free_initmem_default(-1);
> > >> >> >>>  }
> > >> >> >>> -
> > >> >> >>> -#ifdef CONFIG_BLK_DEV_INITRD
> > >> >> >>> -void __init free_initrd_mem(unsigned long start, unsigned long end)
> > >> >> >>> -{
> > >> >> >>> - free_reserved_area((void *)start, (void *)end, -1, "initrd");
> > >> >> >>> -}
> > >> >> >>> -#endif
> > >> >> >>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> > >> >> >>> index 3f972e83909b..19d1c5594e2d 100644
> > >> >> >>> --- a/arch/arm/Kconfig
> > >> >> >>> +++ b/arch/arm/Kconfig
> > >> >> >>> @@ -47,6 +47,7 @@ config ARM
> > >> >> >>>   select HARDIRQS_SW_RESEND
> > >> >> >>>   select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
> > >> >> >>>   select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
> > >> >> >>> + select HAVE_ARCH_FREE_INITRD_MEM
> > >> >> >>>   select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
> > >> >> >>>   select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
> > >> >> >>>   select HAVE_ARCH_MMAP_RND_BITS if MMU
> > >> >> >>
> > >> >> >> Isn't this why weak symbols were invented?
> > >> >> >
> > >> >> > Weak symbols means that we end up with both the weakly-referenced code
> > >> >> > and the arch code in the kernel image.  That's fine if the weak code
> > >> >> > is small.
> > >> >>
> > >> >> The kernel's been able to build with link time garbage collection since 2016:
> > >> >>
> > >> >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b67067f1176d
> > >> >>
> > >> >> Wouldn't that remove the unused one?
> > >> >
> > >> > Probably, if anyone bothered to use that, which they don't.
> > >> >
> > >> > LD_DEAD_CODE_DATA_ELIMINATION is a symbol without a prompt, and from
> > >> > what I can see, nothing selects it.  Therefore, the symbol is always
> > >> > disabled, and so the feature never gets used in mainline kernels.
> > >> >
> > >> > Brings up the obvious question - why is it there if it's completely
> > >> > unused?  (Maybe to cause confusion, and allowing a justification
> > >> > for __weak ?)
> > >>
> > >> IIRC Nick had some patches to do the arch enablement for powerpc, but
> > >> I'm not sure what happened to them though. I suspect it just fell down
> > >> Nick's ever growing TODO list.
> > >
> > > I've given it a go on ARM, marking every linker-built table with KEEP()
> > > and comparing the System.map files.  The resulting kernel is around
> > > 150k smaller, which seems good.
> > >
> > > However, it doesn't boot - and I don't know why.  Booting the kernel
> > > under kvmtool in a VM using virtio-console, I can find no way to get
> > > any kernel messages out of it.  Using lkvm debug, I can see that the
> > > PC is stuck inside die(), and that's the only information I have.
> > > It dies before bringing up the other CPUs, so it's a very early death.
> > >
> > > I don't think other console types are available under ARM64.
> > 
> > earlycon?
> 
> Through what - as I say above, I think the only thing that's present is
> virtio-console, and the virtio stack only get initialised much later in
> boot.
> 
> Eg, there's the memory-based virtio driver which interfaces any virtio
> driver to a memory-based ring structures for communication with the host
> (drivers/virtio/virtio_mmio.c) which is initialised at module_init()
> time, and so isn't available for earlycon.
> 
> I don't think merely changing the module_init() calls in the appropriate
> virtio bits will suffice - it's why I pointed out that it dies before
> SMP initialisation, which also means that it dies before we start
> running the initcalls for subsystems and drivers.
> 
> I'm not aware of there being an emulated UART in the guest's address
> space, so serial based stuff doesn't work.

"earlycon=uart,mmio,0x3f8" is what you're looking for:

$ Work/kvmtool/lkvm run -c2 -k zImage -p "earlycon=uart,mmio,0x3f8" --console virtio --aarch32
  # lkvm run -k zImage -m 320 -c 2 --name guest-3856
  Info: Loaded kernel to 0x80008000 (6767104 bytes)
  Info: Placing fdt at 0x8fe00000 - 0x8fffffff
  Info: virtio-mmio.devices=0x200@0x10000:36

  Info: virtio-mmio.devices=0x200@0x10200:37

  Info: virtio-mmio.devices=0x200@0x10400:38

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.16.0-rc6+ (maz@approximate) (gcc version 6.3.0 20170516 (Debian 6.3.0-18)) #8407 SMP PREEMPT Tue Mar 20 15:01:43 GMT 2018
[    0.000000] CPU: ARMv7 Processor [410fd082] revision 2 (ARMv7), cr=30c5383d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[    0.000000] OF: fdt: Machine model: linux,dummy-virt
[    0.000000] earlycon: uart0 at MMIO 0x00000000000003f8 (options '')
[    0.000000] bootconsole [uart0] enabled
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] efi: Getting EFI parameters from FDT:
[    0.000000] efi: UEFI not found.

[...]

	M.

-- 
Jazz is not dead, it just smell funny.

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From: Russell King - ARM Linux <linux@armlinux.org.uk>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
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 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Linus Walleij <linus.walleij@linaro.org>, Will Deacon <will.deacon@arm.com>,
 Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>,
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 Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>,
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 Vladimir Murzin <vladimir.murzin@arm.com>, Marc Zyngier <marc.zyngier@arm.com>,
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To: Rob Landley <rob@landley.net>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3710>

On Thu, Mar 29, 2018 at 11:39:24AM -0500, Rob Landley wrote:
> 
> 
> On 03/28/2018 05:14 PM, Russell King - ARM Linux wrote:
> > On Wed, Mar 28, 2018 at 02:04:22PM -0500, Rob Landley wrote:
> >>
> >>
> >> On 03/28/2018 11:48 AM, Russell King - ARM Linux wrote:
> >>> On Wed, Mar 28, 2018 at 10:58:51AM -0500, Rob Landley wrote:
> >>>> On 03/28/2018 10:26 AM, Shea Levy wrote:
> >>>>> Now only those architectures that have custom initrd free requirements
> >>>>> need to define free_initrd_mem.
> >>>> ...
> >>>>> --- a/arch/arc/mm/init.c
> >>>>> +++ b/arch/arc/mm/init.c
> >>>>> @@ -229,10 +229,3 @@ void __ref free_initmem(void)
> >>>>>  {
> >>>>>  	free_initmem_default(-1);
> >>>>>  }
> >>>>> -
> >>>>> -#ifdef CONFIG_BLK_DEV_INITRD
> >>>>> -void __init free_initrd_mem(unsigned long start, unsigned long end)
> >>>>> -{
> >>>>> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> >>>>> -}
> >>>>> -#endif
> >>>>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> >>>>> index 3f972e83909b..19d1c5594e2d 100644
> >>>>> --- a/arch/arm/Kconfig
> >>>>> +++ b/arch/arm/Kconfig
> >>>>> @@ -47,6 +47,7 @@ config ARM
> >>>>>  	select HARDIRQS_SW_RESEND
> >>>>>  	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
> >>>>>  	select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
> >>>>> +	select HAVE_ARCH_FREE_INITRD_MEM
> >>>>>  	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
> >>>>>  	select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
> >>>>>  	select HAVE_ARCH_MMAP_RND_BITS if MMU
> >>>>
> >>>> Isn't this why weak symbols were invented?
> >>>
> >>> Weak symbols means that we end up with both the weakly-referenced code
> >>> and the arch code in the kernel image.  That's fine if the weak code
> >>> is small.
> >>
> >> The kernel's been able to build with link time garbage collection since 2016:
> >>
> >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b67067f1176d
> >>
> >> Wouldn't that remove the unused one?
> > 
> > Probably, if anyone bothered to use that, which they don't.
> > 
> > LD_DEAD_CODE_DATA_ELIMINATION is a symbol without a prompt, and from
> > what I can see, nothing selects it.  Therefore, the symbol is always
> > disabled, and so the feature never gets used in mainline kernels.
> 
> It looks like there are per-architecture linker scripts that need to be updated?
> So if an architecture supports it, it's always done (well, it probes for the
> toolchain supporting the flag). And if the architecture doesn't support it, the
> linker script needs to be updated to mark sections with "I know nothing seems to
> reference this at the ELF level but keep it anyway, we're pulling an assembly
> trick".

It looks like it needs much more than just architecture changes as the
reason it fails on ARM is because the init thread structure is missing
due to missing KEEP()s in INIT_TASK_DATA().  Probably means it doesn't
work anywhere.

8<===
From: Russell King <rmk+kernel@armlinux.org.uk>
Subject: [PATCH] Fix LD_DEAD_CODE_DATA_ELIMINATION

LD_DEAD_CODE_DATA_ELIMINATION fails to boot on ARM because the linker
eliminates the init thread data from the bottom of the init threads
stack.  This causes recursive faults that end up overwriting parts
of the kernel before they can print any message.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
 include/asm-generic/vmlinux.lds.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 1ab0e520d6fc..41af8a74aae4 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -279,8 +279,8 @@
 	VMLINUX_SYMBOL(__start_init_task) = .;				\
 	VMLINUX_SYMBOL(init_thread_union) = .;				\
 	VMLINUX_SYMBOL(init_stack) = .;					\
-	*(.data..init_task)						\
-	*(.data..init_thread_info)					\
+	KEEP(*(.data..init_task))					\
+	KEEP(*(.data..init_thread_info))				\
 	. = VMLINUX_SYMBOL(__start_init_task) + THREAD_SIZE;		\
 	VMLINUX_SYMBOL(__end_init_task) = .;
 

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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From - Thu Nov 08 21:41:14 2018
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From: Russell King - ARM Linux <linux@armlinux.org.uk>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
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Cc: Linux MIPS Mailing List <linux-mips@linux-mips.org>,
 Linux-sh list <linux-sh@vger.kernel.org>,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Linus Walleij <linus.walleij@linaro.org>, Will Deacon <will.deacon@arm.com>,
 Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>,
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To: Marc Zyngier <marc.zyngier@arm.com>
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On Thu, Mar 29, 2018 at 05:53:14PM +0100, Marc Zyngier wrote:
> On Thu, 29 Mar 2018 16:58:27 +0100,
> Russell King - ARM Linux wrote:
> > 
> > On Thu, Mar 29, 2018 at 05:43:47PM +0200, Geert Uytterhoeven wrote:
> > > On Thu, Mar 29, 2018 at 5:27 PM, Russell King - ARM Linux
> > > <linux@armlinux.org.uk> wrote:
> > > > On Thu, Mar 29, 2018 at 09:37:52AM +1100, Oliver wrote:
> > > >> On Thu, Mar 29, 2018 at 9:14 AM, Russell King - ARM Linux
> > > >> <linux@armlinux.org.uk> wrote:
> > > >> > On Wed, Mar 28, 2018 at 02:04:22PM -0500, Rob Landley wrote:
> > > >> >> On 03/28/2018 11:48 AM, Russell King - ARM Linux wrote:
> > > >> >> > On Wed, Mar 28, 2018 at 10:58:51AM -0500, Rob Landley wrote:
> > > >> >> >> On 03/28/2018 10:26 AM, Shea Levy wrote:
> > > >> >> >>> Now only those architectures that have custom initrd free requirements
> > > >> >> >>> need to define free_initrd_mem.
> > > >> >> >> ...
> > > >> >> >>> --- a/arch/arc/mm/init.c
> > > >> >> >>> +++ b/arch/arc/mm/init.c
> > > >> >> >>> @@ -229,10 +229,3 @@ void __ref free_initmem(void)
> > > >> >> >>>  {
> > > >> >> >>>   free_initmem_default(-1);
> > > >> >> >>>  }
> > > >> >> >>> -
> > > >> >> >>> -#ifdef CONFIG_BLK_DEV_INITRD
> > > >> >> >>> -void __init free_initrd_mem(unsigned long start, unsigned long end)
> > > >> >> >>> -{
> > > >> >> >>> - free_reserved_area((void *)start, (void *)end, -1, "initrd");
> > > >> >> >>> -}
> > > >> >> >>> -#endif
> > > >> >> >>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> > > >> >> >>> index 3f972e83909b..19d1c5594e2d 100644
> > > >> >> >>> --- a/arch/arm/Kconfig
> > > >> >> >>> +++ b/arch/arm/Kconfig
> > > >> >> >>> @@ -47,6 +47,7 @@ config ARM
> > > >> >> >>>   select HARDIRQS_SW_RESEND
> > > >> >> >>>   select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
> > > >> >> >>>   select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
> > > >> >> >>> + select HAVE_ARCH_FREE_INITRD_MEM
> > > >> >> >>>   select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
> > > >> >> >>>   select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
> > > >> >> >>>   select HAVE_ARCH_MMAP_RND_BITS if MMU
> > > >> >> >>
> > > >> >> >> Isn't this why weak symbols were invented?
> > > >> >> >
> > > >> >> > Weak symbols means that we end up with both the weakly-referenced code
> > > >> >> > and the arch code in the kernel image.  That's fine if the weak code
> > > >> >> > is small.
> > > >> >>
> > > >> >> The kernel's been able to build with link time garbage collection since 2016:
> > > >> >>
> > > >> >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b67067f1176d
> > > >> >>
> > > >> >> Wouldn't that remove the unused one?
> > > >> >
> > > >> > Probably, if anyone bothered to use that, which they don't.
> > > >> >
> > > >> > LD_DEAD_CODE_DATA_ELIMINATION is a symbol without a prompt, and from
> > > >> > what I can see, nothing selects it.  Therefore, the symbol is always
> > > >> > disabled, and so the feature never gets used in mainline kernels.
> > > >> >
> > > >> > Brings up the obvious question - why is it there if it's completely
> > > >> > unused?  (Maybe to cause confusion, and allowing a justification
> > > >> > for __weak ?)
> > > >>
> > > >> IIRC Nick had some patches to do the arch enablement for powerpc, but
> > > >> I'm not sure what happened to them though. I suspect it just fell down
> > > >> Nick's ever growing TODO list.
> > > >
> > > > I've given it a go on ARM, marking every linker-built table with KEEP()
> > > > and comparing the System.map files.  The resulting kernel is around
> > > > 150k smaller, which seems good.
> > > >
> > > > However, it doesn't boot - and I don't know why.  Booting the kernel
> > > > under kvmtool in a VM using virtio-console, I can find no way to get
> > > > any kernel messages out of it.  Using lkvm debug, I can see that the
> > > > PC is stuck inside die(), and that's the only information I have.
> > > > It dies before bringing up the other CPUs, so it's a very early death.
> > > >
> > > > I don't think other console types are available under ARM64.
> > > 
> > > earlycon?
> > 
> > Through what - as I say above, I think the only thing that's present is
> > virtio-console, and the virtio stack only get initialised much later in
> > boot.
> > 
> > Eg, there's the memory-based virtio driver which interfaces any virtio
> > driver to a memory-based ring structures for communication with the host
> > (drivers/virtio/virtio_mmio.c) which is initialised at module_init()
> > time, and so isn't available for earlycon.
> > 
> > I don't think merely changing the module_init() calls in the appropriate
> > virtio bits will suffice - it's why I pointed out that it dies before
> > SMP initialisation, which also means that it dies before we start
> > running the initcalls for subsystems and drivers.
> > 
> > I'm not aware of there being an emulated UART in the guest's address
> > space, so serial based stuff doesn't work.
> 
> "earlycon=uart,mmio,0x3f8" is what you're looking for:

Does that also mean that we have a RTC at the standard PC IO addresses
as well, but in mmio space?

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
Date: Thu, 29 Mar 2018 12:43:05 -0500
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Cc: linux-mips@linux-mips.org, linux-sh@vger.kernel.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Linus Walleij <linus.walleij@linaro.org>, Will Deacon <will.deacon@arm.com>,
 Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>,
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To: Russell King - ARM Linux <linux@armlinux.org.uk>, Oliver <oohall@gmail.com>
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On 03/29/2018 10:27 AM, Russell King - ARM Linux wrote:
> On Thu, Mar 29, 2018 at 09:37:52AM +1100, Oliver wrote:
>> On Thu, Mar 29, 2018 at 9:14 AM, Russell King - ARM Linux
>>> LD_DEAD_CODE_DATA_ELIMINATION is a symbol without a prompt, and from
>>> what I can see, nothing selects it.  Therefore, the symbol is always
>>> disabled, and so the feature never gets used in mainline kernels.
>>>
>>> Brings up the obvious question - why is it there if it's completely
>>> unused?  (Maybe to cause confusion, and allowing a justification
>>> for __weak ?)
>>
>> IIRC Nick had some patches to do the arch enablement for powerpc, but
>> I'm not sure what happened to them though. I suspect it just fell down
>> Nick's ever growing TODO list.
> 
> I've given it a go on ARM, marking every linker-built table with KEEP()
> and comparing the System.map files.  The resulting kernel is around
> 150k smaller, which seems good.
> 
> However, it doesn't boot - and I don't know why.  Booting the kernel
> under kvmtool in a VM using virtio-console, I can find no way to get
> any kernel messages out of it.  Using lkvm debug, I can see that the
> PC is stuck inside die(), and that's the only information I have.

qemu-system-arm's "-s" option lets you hook to the hardware with gdb, as if
using one of those jtags that speaks gdbserver protocol. It stops waiting for
you to attach with 'target remote' it, then 'file vmlinux' to load the symbols...

The miniconfig and qemu invocation I use for arm64 are attached, tested with
2.11.0 on a 4.14 kernel. You should be able to just "qemu-aarch64.sh -s" and
then probably "target remote 127.0.0.1:1234"? (Been a while since I've used it,
don't have a cross-gdb for arm64 lying around...)

Sigh, I just tried -s and qemu 2.11.0 is _not_ waiting for gdb to attach on
arm64, despite what the docs say:

$ qemu-system-aarch64 --help | grep gdb
-gdb dev        wait for gdb connection on 'dev'
-s              shorthand for -gdb tcp::1234

Another random regression in qemu, gee what a surprise.

> It dies before bringing up the other CPUs, so it's a very early death.
> 
> I don't think other console types are available under ARM64.

I've often found useful the two line version of:

https://balau82.wordpress.com/2010/02/28/hello-world-for-bare-metal-arm-using-qemu/

Which is generally some variant of:

{char *XX = "blah"; while (*XX) {while (*SERIAL_STATUS_REGISTER & OUT_READY);
*SERIAL_OUT = *XX++;}}

(I.E. balu cheated not spinning checking the ready-for-next-byte bit, because
qemu's always angry.)

That trick lets you cut and paste a print statement into all sorts of early
hardware nonsense, on most architectures. You just have to look up
SERIAL_STATUS_REGISTER, OUT_OK_BIT, and SERIAL_OUT values for the serial port du
jour.

That said I've mostly used it in things like u-boot. I dunno at what point the
kernel's done enough setup that direct banging on registers would stop working.
(Works in the decompresion code, anyway.) And it assumes the port's set to the
right speed (usually left there by the bootloader)...

Rob

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Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
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To: Russell King - ARM Linux <linux@armlinux.org.uk>
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On Thu, 29 Mar 2018 18:32:47 +0100,
Russell King - ARM Linux wrote:
> 
> On Thu, Mar 29, 2018 at 05:53:14PM +0100, Marc Zyngier wrote:
> > On Thu, 29 Mar 2018 16:58:27 +0100,
> > Russell King - ARM Linux wrote:

[...]

> > > I'm not aware of there being an emulated UART in the guest's address
> > > space, so serial based stuff doesn't work.
> > 
> > "earlycon=uart,mmio,0x3f8" is what you're looking for:
> 
> Does that also mean that we have a RTC at the standard PC IO addresses
> as well, but in mmio space?

There is one, together with an i8042. Not exposed in the DT though.

	M.

-- 
Jazz is not dead, it just smell funny.

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Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
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Hi Shea,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v4.16-rc7]
[cannot apply to next-20180329]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Shea-Levy/Extract-initrd-free-logic-from-arch-specific-code/20180330-085507
config: ia64-allnoconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=ia64 

All warnings (new ones prefixed by >>):

warning: (IA64) selects HAVE_ARCH_FREE_INITRD_MEM which has unmet direct dependencies (BLK_DEV_INITRD)

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
Date: Fri, 30 Mar 2018 11:16:11 +0800
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To: Shea Levy <shea@shealevy.com>
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Hi Shea,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v4.16-rc7]
[cannot apply to next-20180329]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Shea-Levy/Extract-initrd-free-logic-from-arch-specific-code/20180330-085507
config: m32r-m32104ut_defconfig (attached as .config)
compiler: m32r-linux-gcc (GCC) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=m32r 

All warnings (new ones prefixed by >>):

warning: (M32R) selects HAVE_ARCH_FREE_INITRD_MEM which has unmet direct dependencies (BLK_DEV_INITRD)

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From - Thu Nov 08 21:41:14 2018
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X-Mozilla-Keys:                                                                                 
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From: Pavel Machek <pavel@ucw.cz>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm
Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
Date: Fri, 30 Mar 2018 09:55:08 +0200
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Approved: news@gmane.org
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To: Ilya Smith <blackzert@gmail.com>
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Hi!

> Current implementation doesn't randomize address returned by mmap.
> All the entropy ends with choosing mmap_base_addr at the process
> creation. After that mmap build very predictable layout of address
> space. It allows to bypass ASLR in many cases. This patch make
> randomization of address on any mmap call.

How will this interact with people debugging their application, and
getting different behaviours based on memory layout?

strace, strace again, get different results?

									Pavel
--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

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From - Thu Nov 08 21:41:15 2018
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X-Mozilla-Keys:                                                                                 
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From: Ilya Smith <blackzert@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.kernel.metag,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm
Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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To: Pavel Machek <pavel@ucw.cz>
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Hi

> On 30 Mar 2018, at 10:55, Pavel Machek <pavel@ucw.cz> wrote:
>=20
> Hi!
>=20
>> Current implementation doesn't randomize address returned by mmap.
>> All the entropy ends with choosing mmap_base_addr at the process
>> creation. After that mmap build very predictable layout of address
>> space. It allows to bypass ASLR in many cases. This patch make
>> randomization of address on any mmap call.
>=20
> How will this interact with people debugging their application, and
> getting different behaviours based on memory layout?
>=20
> strace, strace again, get different results?
>=20

Honestly I=E2=80=99m confused about your question. If the only one way =
for debugging=20
application is to use predictable mmap behaviour, then something went =
wrong in=20
this live and we should stop using computers at all.

Thanks,
Ilya


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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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To: Ilya Smith <blackzert@gmail.com>
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On Fri 2018-03-30 12:07:58, Ilya Smith wrote:
> Hi
>=20
> > On 30 Mar 2018, at 10:55, Pavel Machek <pavel@ucw.cz> wrote:
> >=20
> > Hi!
> >=20
> >> Current implementation doesn't randomize address returned by mmap.
> >> All the entropy ends with choosing mmap_base_addr at the process
> >> creation. After that mmap build very predictable layout of address
> >> space. It allows to bypass ASLR in many cases. This patch make
> >> randomization of address on any mmap call.
> >=20
> > How will this interact with people debugging their application, and
> > getting different behaviours based on memory layout?
> >=20
> > strace, strace again, get different results?
> >=20
>=20
> Honestly I=E2=80=99m confused about your question. If the only one way fo=
r debugging=20
> application is to use predictable mmap behaviour, then something went wro=
ng in=20
> this live and we should stop using computers at all.

I'm not saying "only way". I'm saying one way, and you are breaking
that. There's advanced stuff like debuggers going "back in time".

									Pavel
--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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To: Pavel Machek <pavel@ucw.cz>
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> On 30 Mar 2018, at 12:57, Pavel Machek <pavel@ucw.cz> wrote:
>=20
> On Fri 2018-03-30 12:07:58, Ilya Smith wrote:
>> Hi
>>=20
>>> On 30 Mar 2018, at 10:55, Pavel Machek <pavel@ucw.cz> wrote:
>>>=20
>>> Hi!
>>>=20
>>>> Current implementation doesn't randomize address returned by mmap.
>>>> All the entropy ends with choosing mmap_base_addr at the process
>>>> creation. After that mmap build very predictable layout of address
>>>> space. It allows to bypass ASLR in many cases. This patch make
>>>> randomization of address on any mmap call.
>>>=20
>>> How will this interact with people debugging their application, and
>>> getting different behaviours based on memory layout?
>>>=20
>>> strace, strace again, get different results?
>>>=20
>>=20
>> Honestly I=E2=80=99m confused about your question. If the only one =
way for debugging=20
>> application is to use predictable mmap behaviour, then something went =
wrong in=20
>> this live and we should stop using computers at all.
>=20
> I'm not saying "only way". I'm saying one way, and you are breaking
> that. There's advanced stuff like debuggers going "back in time".
>=20

Correct me if I wrong, when you run gdb for instance and try to debug =
some=20
application, gdb will disable randomization. This behaviour works with =
gdb=20
command: set disable-randomization on. As I know, gdb remove flag =
PF_RANDOMIZE=20
from current personality thats how it disables ASLR for debugging =
process.=20
According to my patch, flag PF_RANDOMIZE is checked before calling=20
unmapped_area_random. So I don=E2=80=99t breaking debugging. If you =
talking about the=20
case, when your application crashes under customer environment and you =
want to
debug it; in this case layout of memory is what you don=E2=80=99t =
control at all and=20
you have to understand what is where. So for debugging memory process =
layout is
not what you should care of.

Thanks,
Ilya


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* Shea Levy <shea@shealevy.com> wrote:

> Now only those architectures that have custom initrd free requirements
> need to define free_initrd_mem.
> 
> Signed-off-by: Shea Levy <shea@shealevy.com>

Please put the Kconfig symbol name this patch introduces both into the title, so 
that people know what to grep for.

> ---
>  arch/alpha/mm/init.c      |  8 --------
>  arch/arc/mm/init.c        |  7 -------
>  arch/arm/Kconfig          |  1 +
>  arch/arm64/Kconfig        |  1 +
>  arch/blackfin/Kconfig     |  1 +
>  arch/c6x/mm/init.c        |  7 -------
>  arch/cris/Kconfig         |  1 +
>  arch/frv/mm/init.c        | 11 -----------
>  arch/h8300/mm/init.c      |  7 -------
>  arch/hexagon/Kconfig      |  1 +
>  arch/ia64/Kconfig         |  1 +
>  arch/m32r/Kconfig         |  1 +
>  arch/m32r/mm/init.c       | 11 -----------
>  arch/m68k/mm/init.c       |  7 -------
>  arch/metag/Kconfig        |  1 +
>  arch/microblaze/mm/init.c |  7 -------
>  arch/mips/Kconfig         |  1 +
>  arch/mn10300/Kconfig      |  1 +
>  arch/nios2/mm/init.c      |  7 -------
>  arch/openrisc/mm/init.c   |  7 -------
>  arch/parisc/mm/init.c     |  7 -------
>  arch/powerpc/mm/mem.c     |  7 -------
>  arch/riscv/mm/init.c      |  6 ------
>  arch/s390/Kconfig         |  1 +
>  arch/score/Kconfig        |  1 +
>  arch/sh/mm/init.c         |  7 -------
>  arch/sparc/Kconfig        |  1 +
>  arch/tile/Kconfig         |  1 +
>  arch/um/kernel/mem.c      |  7 -------
>  arch/unicore32/Kconfig    |  1 +
>  arch/x86/Kconfig          |  1 +
>  arch/xtensa/Kconfig       |  1 +
>  init/initramfs.c          |  7 +++++++
>  usr/Kconfig               |  4 ++++
>  34 files changed, 28 insertions(+), 113 deletions(-)

Please also put it into Documentation/features/.

> diff --git a/usr/Kconfig b/usr/Kconfig
> index 43658b8a975e..7a94f6df39bf 100644
> --- a/usr/Kconfig
> +++ b/usr/Kconfig
> @@ -233,3 +233,7 @@ config INITRAMFS_COMPRESSION
>  	default ".lzma" if RD_LZMA
>  	default ".bz2"  if RD_BZIP2
>  	default ""
> +
> +config HAVE_ARCH_FREE_INITRD_MEM
> +	bool
> +	default n

Help text would be nice, to tell arch maintainers what the purpose of this switch 
is.

Also, a nit, I think this should be named "ARCH_HAS_FREE_INITRD_MEM", which is the 
dominant pattern:

triton:~/tip> git grep 'select.*ARCH' arch/x86/Kconfig* | cut -f2 | cut -d_ -f1-2 | sort | uniq -c | sort -n
    ...
      2 select ARCH_USES
      2 select ARCH_WANTS
      3 select ARCH_MIGHT
      3 select ARCH_WANT
      4 select ARCH_SUPPORTS
      4 select ARCH_USE
     16 select HAVE_ARCH
     23 select ARCH_HAS

It also reads nicely in English:

  "arch has free_initrd_mem()"

While the other makes little sense:

  "have arch free_initrd_mem()"

?

Thanks,

	Ingo

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Subject: Re: [RFC PATCH v2 0/2] Randomization of address chosen by mmap.
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To: Pavel Machek <pavel@ucw.cz>
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On Fri, Mar 30, 2018 at 09:55:08AM +0200, Pavel Machek wrote:
> Hi!
> 
> > Current implementation doesn't randomize address returned by mmap.
> > All the entropy ends with choosing mmap_base_addr at the process
> > creation. After that mmap build very predictable layout of address
> > space. It allows to bypass ASLR in many cases. This patch make
> > randomization of address on any mmap call.
> 
> How will this interact with people debugging their application, and
> getting different behaviours based on memory layout?
> 
> strace, strace again, get different results?

Normally gdb disables ASLR for the process when invoking a program to
debug. I don't see why that would be terribly useful with strace but
you can do the same if you want.

Rich


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The first patch in this series added a weakly-defined generic
implementation, which is functionally identical to the
architecture-specific one removed here.

Series boot-tested on RISC-V (which now uses the generic
implementation) and x86_64 (which doesn't).

Signed-off-by: Shea Levy <shea@shealevy.com>
---
 arch/parisc/mm/init.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index cab32ee824d2..3643399230f3 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -932,10 +932,3 @@ void flush_tlb_all(void)
 	spin_unlock(&sid_lock);
 }
 #endif
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-- 
2.16.2



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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
Date: Sun, 01 Apr 2018 11:05:21 -0400
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Cc: linux-mips@linux-mips.org, linux-sh@vger.kernel.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Linus Walleij <linus.walleij@linaro.org>, Will Deacon <will.deacon@arm.com>,
 Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 Christoph Hellwig <hch@infradead.org>,
 Geert Uytterhoeven <geert@linux-m68k.org>,
 Catalin Marinas <catalin.marinas@arm.com>, Matt Turner <mattst88@gmail.com>,
 Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>,
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To: Ingo Molnar <mingo@kernel.org>
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Hi Ingo,

Ingo Molnar <mingo@kernel.org> writes:

> * Shea Levy <shea@shealevy.com> wrote:
>
>> Now only those architectures that have custom initrd free requirements
>> need to define free_initrd_mem.
>>=20
>> Signed-off-by: Shea Levy <shea@shealevy.com>
>
> Please put the Kconfig symbol name this patch introduces both into the ti=
tle, so=20
> that people know what to grep for.
>
>> ---
>>  arch/alpha/mm/init.c      |  8 --------
>>  arch/arc/mm/init.c        |  7 -------
>>  arch/arm/Kconfig          |  1 +
>>  arch/arm64/Kconfig        |  1 +
>>  arch/blackfin/Kconfig     |  1 +
>>  arch/c6x/mm/init.c        |  7 -------
>>  arch/cris/Kconfig         |  1 +
>>  arch/frv/mm/init.c        | 11 -----------
>>  arch/h8300/mm/init.c      |  7 -------
>>  arch/hexagon/Kconfig      |  1 +
>>  arch/ia64/Kconfig         |  1 +
>>  arch/m32r/Kconfig         |  1 +
>>  arch/m32r/mm/init.c       | 11 -----------
>>  arch/m68k/mm/init.c       |  7 -------
>>  arch/metag/Kconfig        |  1 +
>>  arch/microblaze/mm/init.c |  7 -------
>>  arch/mips/Kconfig         |  1 +
>>  arch/mn10300/Kconfig      |  1 +
>>  arch/nios2/mm/init.c      |  7 -------
>>  arch/openrisc/mm/init.c   |  7 -------
>>  arch/parisc/mm/init.c     |  7 -------
>>  arch/powerpc/mm/mem.c     |  7 -------
>>  arch/riscv/mm/init.c      |  6 ------
>>  arch/s390/Kconfig         |  1 +
>>  arch/score/Kconfig        |  1 +
>>  arch/sh/mm/init.c         |  7 -------
>>  arch/sparc/Kconfig        |  1 +
>>  arch/tile/Kconfig         |  1 +
>>  arch/um/kernel/mem.c      |  7 -------
>>  arch/unicore32/Kconfig    |  1 +
>>  arch/x86/Kconfig          |  1 +
>>  arch/xtensa/Kconfig       |  1 +
>>  init/initramfs.c          |  7 +++++++
>>  usr/Kconfig               |  4 ++++
>>  34 files changed, 28 insertions(+), 113 deletions(-)
>
> Please also put it into Documentation/features/.
>

I switched this patch series (the latest revision v6 was just posted) to
using weak symbols instead of Kconfig. Does it still warrant documentation?

>
>> diff --git a/usr/Kconfig b/usr/Kconfig
>> index 43658b8a975e..7a94f6df39bf 100644
>> --- a/usr/Kconfig
>> +++ b/usr/Kconfig
>> @@ -233,3 +233,7 @@ config INITRAMFS_COMPRESSION
>>  	default ".lzma" if RD_LZMA
>>  	default ".bz2"  if RD_BZIP2
>>  	default ""
>> +
>> +config HAVE_ARCH_FREE_INITRD_MEM
>> +	bool
>> +	default n
>
> Help text would be nice, to tell arch maintainers what the purpose of thi=
s switch=20
> is.
>
> Also, a nit, I think this should be named "ARCH_HAS_FREE_INITRD_MEM", whi=
ch is the=20
> dominant pattern:
>
> triton:~/tip> git grep 'select.*ARCH' arch/x86/Kconfig* | cut -f2 | cut -=
d_ -f1-2 | sort | uniq -c | sort -n
>     ...
>       2 select ARCH_USES
>       2 select ARCH_WANTS
>       3 select ARCH_MIGHT
>       3 select ARCH_WANT
>       4 select ARCH_SUPPORTS
>       4 select ARCH_USE
>      16 select HAVE_ARCH
>      23 select ARCH_HAS
>
> It also reads nicely in English:
>
>   "arch has free_initrd_mem()"
>
> While the other makes little sense:
>
>   "have arch free_initrd_mem()"
>
> ?
>
> Thanks,
>
> 	Ingo

Thanks,
Shea

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_______________________________________________
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From - Thu Nov 08 21:41:15 2018
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From: Ingo Molnar <mingo@kernel.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.kernel.metag,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] Extract initrd free logic from arch-specific code.
Date: Mon, 2 Apr 2018 07:59:33 +0200
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User-Agent: NeoMutt/20170609 (1.8.3)
Cc: linux-mips@linux-mips.org, linux-sh@vger.kernel.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Linus Walleij <linus.walleij@linaro.org>, Will Deacon <will.deacon@arm.com>,
 Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 Christoph Hellwig <hch@infradead.org>,
 Geert Uytterhoeven <geert@linux-m68k.org>,
 Catalin Marinas <catalin.marinas@arm.com>, Matt Turner <mattst88@gmail.com>,
 Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>,
 uclinux-h8-devel@lists.sourceforge.jp,
 Vladimir Murzin <vladimir.murzin@arm.com>, Marc Zyngier <marc.zyngier@arm.com>,
 adi-buildroot-devel@lists.sourceforge.net, Al Viro <viro@zeniv.linux.org.uk>,
 Thomas Gleixner <tglx@linutronix.de>, Richard Henderson <rth@twiddle.net>,
 linux-cris-kernel@axis.com, Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
 linux-kernel@vger.kerne
To: Shea Levy <shea@shealevy.com>
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* Shea Levy <shea@shealevy.com> wrote:

> > Please also put it into Documentation/features/.
> 
> I switched this patch series (the latest revision v6 was just posted) to
> using weak symbols instead of Kconfig. Does it still warrant documentation?

Probably not.

Thanks,

	Ingo

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Subject: Re: [PATCH v6 13/16] parisc: Switch to generic free_initrd_mem.
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On 01.04.2018 16:59, Shea Levy wrote:
> The first patch in this series added a weakly-defined generic
> implementation, which is functionally identical to the
> architecture-specific one removed here.
> 
> Series boot-tested on RISC-V (which now uses the generic
> implementation) and x86_64 (which doesn't).
> 
> Signed-off-by: Shea Levy <shea@shealevy.com>

Acked-by: Helge Deller <deller@gmx.de> # parisc

> ---
>  arch/parisc/mm/init.c | 7 -------
>  1 file changed, 7 deletions(-)
> 
> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> index cab32ee824d2..3643399230f3 100644
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -932,10 +932,3 @@ void flush_tlb_all(void)
>  	spin_unlock(&sid_lock);
>  }
>  #endif
> -
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -	free_reserved_area((void *)start, (void *)end, -1, "initrd");
> -}
> -#endif
> 



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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc architecture updates for 4.17
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Xref: news.gmane.org gmane.linux.kernel:2731677 gmane.linux.ports.parisc:28470
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2731677>

Hi Linus,

please pull the updates regarding the parisc architecture for kernel 4.17 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.17-1

Lots of small enhancements and fixes in this patchset:
- improved the x86-64 compatibility for PCI cards by returning -1UL for timed
  out MMIO transactions (instead of crashing)
- fixed HPMC handler for PAT machines: size needs to be mulitple of 16 
- prepare machine_power_off() to be able to turn rp3410 and c8000 machines off
  via IMPI
- added code to extract machine info for usage with qemu
- some init sections fixes 
- lots of fixes for sparse-, ubsan- and uninitalized variables warnings. 

Thanks,
Helge

----------------------------------------------------------------
Dan Carpenter (1):
      parisc: Silence uninitialized variable warning in dbl_to_sgl_fcnvff()

Helge Deller (14):
      parisc/stifb: Use fb_memset() to avoid sparse warning
      parisc/parport_gsc: Use NULL to avoid sparse warning
      parisc/led: Fix sparse warnings
      parisc/gscps2: Fix sparse warnings
      parisc: Force to various endian types for sparse
      parisc: Convert MAP_TYPE to cover 4 bits on parisc
      parisc: Move various functions and strings to init section
      parisc/Kconfig: SMP kernels boot on all machines
      parisc: machine_power_off() should call pm_power_off()
      parisc: Directly call machine_power_off() in power button driver
      parisc: Fix HPMC handler by increasing size to multiple of 16 bytes
      parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode
      parisc: Add code generator for Qemu/SeaBIOS machine info
      parisc: Fix out of array access in match_pci_device()

 arch/parisc/Kconfig                 |   6 +-
 arch/parisc/include/asm/io.h        |  12 +--
 arch/parisc/include/uapi/asm/mman.h |   2 +-
 arch/parisc/kernel/drivers.c        | 197 ++++++++++++++++++++++++++++++++++--
 arch/parisc/kernel/hardware.c       |  12 +--
 arch/parisc/kernel/hpmc.S           |   6 +-
 arch/parisc/kernel/process.c        |   6 +-
 arch/parisc/math-emu/fcnvff.c       |   2 +-
 drivers/input/serio/gscps2.c        |  11 +-
 drivers/parisc/lba_pci.c            |  20 +++-
 drivers/parisc/led.c                |   4 +-
 drivers/parisc/power.c              |   3 +-
 drivers/parport/parport_gsc.c       |   2 +-
 drivers/video/fbdev/stifb.c         |   2 +-
 14 files changed, 241 insertions(+), 44 deletions(-)


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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.next
Subject: linux-next: build failure after merge of the parisc-hd tree
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Hi all,

After merging the parisc-hd tree, today's linux-next build (x86_64
allmodconfig) failed like this:

In file included from include/linux/kernel.h:10:0,
                 from include/linux/list.h:9,
                 from include/linux/preempt.h:11,
                 from include/linux/spinlock.h:51,
                 from include/linux/seqlock.h:36,
                 from include/linux/time.h:6,
                 from include/linux/stat.h:19,
                 from include/linux/compat.h:13,
                 from arch/x86/kernel/signal_compat.c:2:
In function 'signal_compat_build_tests',
    inlined from 'sigaction_compat_abi' at arch/x86/kernel/signal_compat.c:=
166:2:
include/linux/compiler.h:339:38: error: call to '__compiletime_assert_29' d=
eclared with attribute error: BUILD_BUG_ON failed: NSIGFPE !=3D 14
  _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
                                      ^
include/linux/compiler.h:319:4: note: in definition of macro '__compiletime=
_assert'
    prefix ## suffix();    \
    ^~~~~~
include/linux/compiler.h:339:2: note: in expansion of macro '_compiletime_a=
ssert'
  _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
  ^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:45:37: note: in expansion of macro 'compiletime_a=
ssert'
 #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                     ^~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:69:2: note: in expansion of macro 'BUILD_BUG_ON_M=
SG'
  BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
  ^~~~~~~~~~~~~~~~
arch/x86/kernel/signal_compat.c:29:2: note: in expansion of macro 'BUILD_BU=
G_ON'
  BUILD_BUG_ON(NSIGFPE  !=3D 14);
  ^~~~~~~~~~~~

Caused by commit

  186536608fd1 ("parisc/signal: Add FPE_CONDTRAP for conditional trap handl=
ing")

I applied the following patch for today:

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Fri, 6 Apr 2018 10:10:26 +1000
Subject: [PATCH] parisc/signal: Add FPE_CONDTRAP for conditional trap handl=
ing
 fix

Update the X86 NSIGFPE check as well.  There are no new fields associated
with this change, so this should be fine.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/x86/kernel/signal_compat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_compa=
t.c
index df92605d8724..14c057f29979 100644
--- a/arch/x86/kernel/signal_compat.c
+++ b/arch/x86/kernel/signal_compat.c
@@ -26,7 +26,7 @@ static inline void signal_compat_build_tests(void)
 	 * new fields are handled in copy_siginfo_to_user32()!
 	 */
 	BUILD_BUG_ON(NSIGILL  !=3D 11);
-	BUILD_BUG_ON(NSIGFPE  !=3D 14);
+	BUILD_BUG_ON(NSIGFPE  !=3D 15);
 	BUILD_BUG_ON(NSIGSEGV !=3D 7);
 	BUILD_BUG_ON(NSIGBUS  !=3D 5);
 	BUILD_BUG_ON(NSIGTRAP !=3D 4);
--=20
2.16.1

--=20
Cheers,
Stephen Rothwell

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Subject: [RFC linux] init: make all setup_arch() output string to boot_command_line[]
Date: Fri,  6 Apr 2018 19:11:59 +0800
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From: yuan linyu <Linyu.Yuan@alcatel-sbell.com.cn>

then all arch boot parameter handled in the same way in start_kernel()

Signed-off-by: yuan linyu <Linyu.Yuan@alcatel-sbell.com.cn>
---
 arch/alpha/kernel/setup.c          |  4 +---
 arch/arc/kernel/setup.c            |  5 +----
 arch/arm/kernel/setup.c            |  7 +------
 arch/arm64/kernel/setup.c          |  4 +---
 arch/c6x/kernel/setup.c            |  5 +----
 arch/h8300/kernel/setup.c          |  3 +--
 arch/hexagon/kernel/setup.c        | 16 +---------------
 arch/ia64/kernel/setup.c           | 15 ++++++++-------
 arch/m68k/kernel/setup_mm.c        |  5 ++---
 arch/m68k/kernel/setup_no.c        |  3 +--
 arch/microblaze/kernel/setup.c     |  4 +---
 arch/mips/kernel/setup.c           | 11 +++--------
 arch/nds32/kernel/setup.c          |  3 +--
 arch/nios2/kernel/setup.c          |  5 +----
 arch/openrisc/kernel/setup.c       |  4 +---
 arch/parisc/kernel/setup.c         |  9 ++-------
 arch/powerpc/kernel/setup-common.c |  4 +---
 arch/riscv/kernel/setup.c          |  4 +---
 arch/s390/kernel/setup.c           |  6 +-----
 arch/sh/kernel/setup.c             |  7 ++++---
 arch/sparc/kernel/setup_32.c       |  9 +++++----
 arch/sparc/kernel/setup_64.c       |  8 ++++----
 arch/um/kernel/um_arch.c           |  3 +--
 arch/unicore32/kernel/setup.c      |  8 +-------
 arch/x86/kernel/setup.c            |  6 +-----
 arch/xtensa/kernel/setup.c         |  9 +++++----
 include/linux/init.h               |  2 +-
 init/main.c                        | 14 +++++++-------
 28 files changed, 59 insertions(+), 124 deletions(-)

diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index 5576f7646fb6..c74675cf7129 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -505,8 +505,7 @@ register_cpus(void)
 
 arch_initcall(register_cpus);
 
-void __init
-setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	extern char _end[];
 
@@ -566,7 +565,6 @@ setup_arch(char **cmdline_p)
 		strlcpy(command_line, COMMAND_LINE, sizeof command_line);
 	}
 	strcpy(boot_command_line, command_line);
-	*cmdline_p = command_line;
 
 	/* 
 	 * Process command-line arguments.
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index b2cae79a25d7..9cfdcf42bf28 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -456,7 +456,7 @@ static inline int is_kernel(unsigned long addr)
 	return 0;
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 #ifdef CONFIG_ARC_UBOOT_SUPPORT
 	/* make sure that uboot passed pointer to cmdline/dtb is valid */
@@ -487,9 +487,6 @@ void __init setup_arch(char **cmdline_p)
 		}
 	}
 
-	/* Save unparsed command line copy for /proc/cmdline */
-	*cmdline_p = boot_command_line;
-
 	/* To force early parsing of things like mem=xxx */
 	parse_early_param();
 
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index fc40a2b40595..1025e3a37689 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -153,7 +153,6 @@ EXPORT_SYMBOL(elf_platform);
 
 static const char *cpu_name;
 static const char *machine_name;
-static char __initdata cmd_line[COMMAND_LINE_SIZE];
 const struct machine_desc *machine_desc __initdata;
 
 static union { char c[4]; unsigned long l; } endian_test __initdata = { { 'l', '?', '?', 'b' } };
@@ -1061,7 +1060,7 @@ void __init hyp_mode_check(void)
 #endif
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	const struct machine_desc *mdesc;
 
@@ -1091,10 +1090,6 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.end_data   = (unsigned long) _edata;
 	init_mm.brk	   = (unsigned long) _end;
 
-	/* populate cmd_line too for later use, preserving boot_command_line */
-	strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE);
-	*cmdline_p = cmd_line;
-
 	early_fixmap_init();
 	early_ioremap_init();
 
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 30ad2f085d1f..c7ba4d32e7f7 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -243,15 +243,13 @@ static void __init request_standard_resources(void)
 
 u64 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	init_mm.start_code = (unsigned long) _text;
 	init_mm.end_code   = (unsigned long) _etext;
 	init_mm.end_data   = (unsigned long) _edata;
 	init_mm.brk	   = (unsigned long) _end;
 
-	*cmdline_p = boot_command_line;
-
 	early_fixmap_init();
 	early_ioremap_init();
 
diff --git a/arch/c6x/kernel/setup.c b/arch/c6x/kernel/setup.c
index 786e36e2f61d..012c8e746889 100644
--- a/arch/c6x/kernel/setup.c
+++ b/arch/c6x/kernel/setup.c
@@ -294,16 +294,13 @@ notrace void __init machine_init(unsigned long dt_ptr)
 	parse_early_param();
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	int bootmap_size;
 	struct memblock_region *reg;
 
 	printk(KERN_INFO "Initializing kernel\n");
 
-	/* Initialize command line */
-	*cmdline_p = boot_command_line;
-
 	memory_end = ram_end;
 	memory_end &= ~(PAGE_SIZE - 1);
 
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
index a4d0470c10a9..bb54c2087f13 100644
--- a/arch/h8300/kernel/setup.c
+++ b/arch/h8300/kernel/setup.c
@@ -117,7 +117,7 @@ static void __init bootmem_init(void)
 	}
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	unflatten_and_copy_device_tree();
 
@@ -131,7 +131,6 @@ void __init setup_arch(char **cmdline_p)
 
 	if (*command_line)
 		strcpy(boot_command_line, command_line);
-	*cmdline_p = boot_command_line;
 
 	parse_early_param();
 
diff --git a/arch/hexagon/kernel/setup.c b/arch/hexagon/kernel/setup.c
index 6981949f5df3..a0348dfad265 100644
--- a/arch/hexagon/kernel/setup.c
+++ b/arch/hexagon/kernel/setup.c
@@ -34,7 +34,6 @@
 #include <asm/vm_mmu.h>
 #include <asm/time.h>
 
-char cmd_line[COMMAND_LINE_SIZE];
 static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
 
 int on_simulator;
@@ -44,12 +43,7 @@ void calibrate_delay(void)
 	loops_per_jiffy = thread_freq_mhz * 1000000 / HZ;
 }
 
-/*
- * setup_arch -  high level architectural setup routine
- * @cmdline_p: pointer to pointer to command-line arguments
- */
-
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	char *p = &external_cmdline_buffer;
 
@@ -84,14 +78,6 @@ void __init setup_arch(char **cmdline_p)
 		strlcpy(boot_command_line, default_command_line,
 			COMMAND_LINE_SIZE);
 
-	/*
-	 * boot_command_line and the value set up by setup_arch
-	 * are both picked up by the init code. If no reason to
-	 * make them different, pass the same pointer back.
-	 */
-	strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE);
-	*cmdline_p = cmd_line;
-
 	parse_early_param();
 
 	setup_arch_memory();
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index dee56bcb993d..75196264dd4e 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -527,15 +527,16 @@ int __init reserve_elfcorehdr(u64 *start, u64 *end)
 
 #endif /* CONFIG_PROC_VMCORE */
 
-void __init
-setup_arch (char **cmdline_p)
+void __init setup_arch (void)
 {
+	char *cmdline_p;
+
 	unw_init();
 
 	ia64_patch_vtop((u64) __start___vtop_patchlist, (u64) __end___vtop_patchlist);
 
-	*cmdline_p = __va(ia64_boot_param->command_line);
-	strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE);
+	cmdline_p = __va(ia64_boot_param->command_line);
+	strlcpy(boot_command_line, cmdline_p, COMMAND_LINE_SIZE);
 
 	efi_init();
 	io_port_init();
@@ -546,12 +547,12 @@ setup_arch (char **cmdline_p)
 	 * that ia64_mv is initialised before any command line
 	 * settings may cause console setup to occur
 	 */
-	machvec_init_from_cmdline(*cmdline_p);
+	machvec_init_from_cmdline(cmdline_p);
 #endif
 
 	parse_early_param();
 
-	if (early_console_setup(*cmdline_p) == 0)
+	if (early_console_setup(cmdline_p) == 0)
 		mark_bsp_online();
 
 #ifdef CONFIG_ACPI
@@ -618,7 +619,7 @@ setup_arch (char **cmdline_p)
 	if (!nomca)
 		ia64_mca_init();
 
-	platform_setup(cmdline_p);
+	platform_setup(&cmdline_p);
 #ifndef CONFIG_IA64_HP_SIM
 	check_sal_cache_flush();
 #endif
diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c
index dd25bfc22fb4..38ccaf3e0274 100644
--- a/arch/m68k/kernel/setup_mm.c
+++ b/arch/m68k/kernel/setup_mm.c
@@ -222,7 +222,7 @@ static void __init m68k_parse_bootinfo(const struct bi_record *record)
 #endif
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 #ifndef CONFIG_SUN3
 	int i;
@@ -272,8 +272,7 @@ void __init setup_arch(char **cmdline_p)
 	m68k_command_line[CL_SIZE - 1] = 0;
 #endif /* CONFIG_BOOTPARAM */
 	process_uboot_commandline(&m68k_command_line[0], CL_SIZE);
-	*cmdline_p = m68k_command_line;
-	memcpy(boot_command_line, *cmdline_p, CL_SIZE);
+	memcpy(boot_command_line, m68k_command_line, CL_SIZE);
 
 	parse_early_param();
 
diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c
index a98af1018201..8b244d4ea603 100644
--- a/arch/m68k/kernel/setup_no.c
+++ b/arch/m68k/kernel/setup_no.c
@@ -84,7 +84,7 @@ void (*mach_power_off)(void);
 #define	CPU_INSTR_PER_JIFFY	16
 #endif
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	int bootmap_size;
 
@@ -143,7 +143,6 @@ void __init setup_arch(char **cmdline_p)
 		 __bss_stop, memory_start, memory_start, memory_end);
 
 	/* Keep a copy of command line */
-	*cmdline_p = &command_line[0];
 	memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
 	boot_command_line[COMMAND_LINE_SIZE-1] = 0;
 
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index be98ffe28ca8..632b7546effc 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -50,10 +50,8 @@ unsigned int boot_cpuid;
  */
 char cmd_line[COMMAND_LINE_SIZE] __attribute__ ((section(".data")));
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
-	*cmdline_p = boot_command_line;
-
 	console_verbose();
 
 	unflatten_device_tree();
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 5f8b0a9e30b3..2bff67be95d6 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -64,7 +64,6 @@ EXPORT_SYMBOL(mips_machtype);
 
 struct boot_mem_map boot_mem_map;
 
-static char __initdata command_line[COMMAND_LINE_SIZE];
 char __initdata arcs_cmdline[COMMAND_LINE_SIZE];
 
 #ifdef CONFIG_CMDLINE_BOOL
@@ -829,7 +828,7 @@ static void __init request_crashkernel(struct resource *res)
 #define BUILTIN_EXTEND_WITH_PROM	\
 	IS_ENABLED(CONFIG_MIPS_CMDLINE_BUILTIN_EXTEND)
 
-static void __init arch_mem_init(char **cmdline_p)
+static void __init arch_mem_init(void)
 {
 	struct memblock_region *reg;
 	extern void plat_mem_setup(void);
@@ -881,10 +880,6 @@ static void __init arch_mem_init(char **cmdline_p)
 	pr_info("Determined physical RAM map:\n");
 	print_memory_map();
 
-	strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
-
-	*cmdline_p = command_line;
-
 	parse_early_param();
 
 	if (usermem) {
@@ -1002,7 +997,7 @@ static void __init prefill_possible_map(void)
 static inline void prefill_possible_map(void) {}
 #endif
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	cpu_probe();
 	mips_cm_probe();
@@ -1023,7 +1018,7 @@ void __init setup_arch(char **cmdline_p)
 #endif
 #endif
 
-	arch_mem_init(cmdline_p);
+	arch_mem_init();
 
 	resource_init();
 	plat_smp_setup();
diff --git a/arch/nds32/kernel/setup.c b/arch/nds32/kernel/setup.c
index ba910e9e4ecb..7df72753dd9a 100644
--- a/arch/nds32/kernel/setup.c
+++ b/arch/nds32/kernel/setup.c
@@ -276,7 +276,7 @@ static void __init setup_memory(void)
 	memblock_dump_all();
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	early_init_devtree( __dtb_start);
 
@@ -303,7 +303,6 @@ void __init setup_arch(char **cmdline_p)
 			conswitchp = &dummy_con;
 	}
 
-	*cmdline_p = boot_command_line;
 	early_trap_init();
 }
 
diff --git a/arch/nios2/kernel/setup.c b/arch/nios2/kernel/setup.c
index 926a02b17b31..e8d140f1d40c 100644
--- a/arch/nios2/kernel/setup.c
+++ b/arch/nios2/kernel/setup.c
@@ -141,7 +141,7 @@ asmlinkage void __init nios2_boot_init(unsigned r4, unsigned r5, unsigned r6,
 	parse_early_param();
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	int bootmap_size;
 
@@ -156,9 +156,6 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.brk = (unsigned long) _end;
 	init_task.thread.kregs = &fake_regs;
 
-	/* Keep a copy of command line */
-	*cmdline_p = boot_command_line;
-
 	min_low_pfn = PFN_UP(memory_start);
 	max_low_pfn = PFN_DOWN(memory_end);
 	max_mapnr = max_low_pfn;
diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index 9d28ab14d139..d73e1faa88d1 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -283,7 +283,7 @@ void calibrate_delay(void)
 		(loops_per_jiffy / (5000 / HZ)) % 100, loops_per_jiffy);
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	unflatten_and_copy_device_tree();
 
@@ -320,8 +320,6 @@ void __init setup_arch(char **cmdline_p)
 		conswitchp = &dummy_con;
 #endif
 
-	*cmdline_p = boot_command_line;
-
 	printk(KERN_INFO "OpenRISC Linux -- http://openrisc.io\n");
 }
 
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 0e9675f857a5..7756a6110b83 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -51,8 +51,6 @@
 #include <asm/unwind.h>
 #include <asm/smp.h>
 
-static char __initdata command_line[COMMAND_LINE_SIZE];
-
 /* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */
 struct proc_dir_entry * proc_runway_root __read_mostly = NULL;
 struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
@@ -63,7 +61,7 @@ int parisc_bus_is_phys __read_mostly = 1;	/* Assume no IOMMU is present */
 EXPORT_SYMBOL(parisc_bus_is_phys);
 #endif
 
-void __init setup_cmdline(char **cmdline_p)
+void __init setup_cmdline(void)
 {
 	extern unsigned int boot_args[];
 
@@ -85,9 +83,6 @@ void __init setup_cmdline(char **cmdline_p)
 		}
 #endif
 	}
-
-	strcpy(command_line, boot_command_line);
-	*cmdline_p = command_line;
 }
 
 #ifdef CONFIG_PA11
@@ -119,7 +114,7 @@ void __init dma_ops_init(void)
 
 extern void collect_boot_cpu_data(void);
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 #ifdef CONFIG_64BIT
 	extern int parisc_narrow_firmware;
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index d73ec518ef80..b88ce4afaafd 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -839,10 +839,8 @@ static __init void print_system_info(void)
  * Called into from start_kernel this initializes memblock, which is used
  * to manage page allocation until mem_init is called.
  */
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
-	*cmdline_p = boot_command_line;
-
 	/* Set a half-reasonable default so udelay does something sensible */
 	loops_per_jiffy = 500000000 / HZ;
 
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index c11f40c1b2a8..dee21fd2f5c2 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -192,10 +192,8 @@ static void __init setup_bootmem(void)
 	}
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
-	*cmdline_p = boot_command_line;
-
 	parse_early_param();
 
 	init_mm.start_code = (unsigned long) _stext;
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index a6a91f01a17a..6addb5afc59e 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -867,7 +867,7 @@ static void __init setup_task_size(void)
  * was printed.
  */
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
         /*
          * print what head.S has found out about the machine
@@ -880,10 +880,6 @@ void __init setup_arch(char **cmdline_p)
 	else if (MACHINE_IS_LPAR)
 		pr_info("Linux is running natively in 64-bit mode\n");
 
-	/* Have one command line that is parsed and saved in /proc/cmdline */
-	/* boot_command_line has been already set up in early.c */
-	*cmdline_p = boot_command_line;
-
         ROOT_DEV = Root_RAM0;
 
 	/* Is init_mm really needed? */
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index b95c411d0333..c46646f0c3c5 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -270,8 +270,10 @@ void __ref sh_fdt_init(phys_addr_t dt_phys)
 }
 #endif
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
+	char *cmdline_p = command_line;
+
 	enable_mmu();
 
 	ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
@@ -319,7 +321,6 @@ void __init setup_arch(char **cmdline_p)
 
 	/* Save unparsed command line copy for /proc/cmdline */
 	memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
-	*cmdline_p = command_line;
 
 	parse_early_param();
 
@@ -338,7 +339,7 @@ void __init setup_arch(char **cmdline_p)
 
 	/* Perform the machine specific initialisation */
 	if (likely(sh_mv.mv_setup))
-		sh_mv.mv_setup(cmdline_p);
+		sh_mv.mv_setup(&cmdline_p);
 
 	plat_smp_setup();
 }
diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c
index 13664c377196..5bced97cc5f8 100644
--- a/arch/sparc/kernel/setup_32.c
+++ b/arch/sparc/kernel/setup_32.c
@@ -294,19 +294,20 @@ void __init sparc32_start_kernel(struct linux_romvec *rp)
 	start_kernel();
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	int i;
+	char *cmdline_p;
 	unsigned long highest_paddr;
 
 	sparc_ttable = &trapbase;
 
 	/* Initialize PROM console and command line. */
-	*cmdline_p = prom_getbootargs();
-	strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE);
+	cmdline_p = prom_getbootargs();
+	strlcpy(boot_command_line, cmdline_p, COMMAND_LINE_SIZE);
 	parse_early_param();
 
-	boot_flags_init(*cmdline_p);
+	boot_flags_init(cmdline_p);
 
 	register_console(&prom_early_console);
 
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index 7944b3ca216a..9f6edffa6a4b 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -630,14 +630,14 @@ void __init alloc_irqstack_bootmem(void)
 	}
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	/* Initialize PROM console and command line. */
-	*cmdline_p = prom_getbootargs();
-	strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE);
+	char *cmdline_p = prom_getbootargs();
+	strlcpy(boot_command_line, cmdline_p, COMMAND_LINE_SIZE);
 	parse_early_param();
 
-	boot_flags_init(*cmdline_p);
+	boot_flags_init(cmdline_p);
 #ifdef CONFIG_EARLYFB
 	if (btext_find_display())
 #endif
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index a818ccef30ca..73d62cf96149 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -339,7 +339,7 @@ int __init __weak read_initrd(void)
 	return 0;
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	stack_protections((unsigned long) &init_thread_info);
 	setup_physmem(uml_physmem, uml_reserved, physmem_size, highmem);
@@ -348,7 +348,6 @@ void __init setup_arch(char **cmdline_p)
 
 	paging_init();
 	strlcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
-	*cmdline_p = command_line;
 	setup_hostinfo(host_info, sizeof host_info);
 }
 
diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
index c2bffa5614a4..c13a07eeed0b 100644
--- a/arch/unicore32/kernel/setup.c
+++ b/arch/unicore32/kernel/setup.c
@@ -60,8 +60,6 @@ struct screen_info screen_info;
 char elf_platform[ELF_PLATFORM_SIZE];
 EXPORT_SYMBOL(elf_platform);
 
-static char __initdata cmd_line[COMMAND_LINE_SIZE];
-
 static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
 
 /*
@@ -235,7 +233,7 @@ static int __init customize_machine(void)
 }
 arch_initcall(customize_machine);
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	char *from = default_command_line;
 
@@ -249,10 +247,6 @@ void __init setup_arch(char **cmdline_p)
 	/* parse_early_param needs a boot_command_line */
 	strlcpy(boot_command_line, from, COMMAND_LINE_SIZE);
 
-	/* populate cmd_line too for later use, preserving boot_command_line */
-	strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE);
-	*cmdline_p = cmd_line;
-
 	parse_early_param();
 
 	uc32_memblock_init(&meminfo);
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 6285697b6e56..6e3347dde550 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -219,7 +219,6 @@ unsigned long saved_video_mode;
 #define RAMDISK_PROMPT_FLAG		0x8000
 #define RAMDISK_LOAD_FLAG		0x4000
 
-static char __initdata command_line[COMMAND_LINE_SIZE];
 #ifdef CONFIG_CMDLINE_BOOL
 static char __initdata builtin_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE;
 #endif
@@ -812,7 +811,7 @@ dump_kernel_offset(struct notifier_block *self, unsigned long v, void *p)
  * Note: On x86_64, fixmaps are ready for use even before this is called.
  */
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	memblock_reserve(__pa_symbol(_text),
 			 (unsigned long)__bss_stop - (unsigned long)_text);
@@ -933,9 +932,6 @@ void __init setup_arch(char **cmdline_p)
 #endif
 #endif
 
-	strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
-	*cmdline_p = command_line;
-
 	/*
 	 * x86_configure_nx() is called before parse_early_param() to detect
 	 * whether hardware doesn't support NX (so that the early EHCI debug
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index 686a27444bba..0409fa85bfdd 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -309,8 +309,10 @@ static inline int mem_reserve(unsigned long start, unsigned long end)
 	return memblock_reserve(start, end - start);
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
+	char *cmdline_p = command_line;
+
 	pr_info("config ID: %08x:%08x\n",
 		get_sr(SREG_EPC), get_sr(SREG_EXCSAVE));
 	if (get_sr(SREG_EPC) != XCHAL_HW_CONFIGID0 ||
@@ -318,9 +320,8 @@ void __init setup_arch(char **cmdline_p)
 		pr_info("built for config ID: %08x:%08x\n",
 			XCHAL_HW_CONFIGID0, XCHAL_HW_CONFIGID1);
 
-	*cmdline_p = command_line;
-	platform_setup(cmdline_p);
-	strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE);
+	platform_setup(&cmdline_p);
+	strlcpy(boot_command_line, cmdline_p, COMMAND_LINE_SIZE);
 
 	/* Reserve some memory regions */
 
diff --git a/include/linux/init.h b/include/linux/init.h
index bc27cf03c41e..206b98d77cb4 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -129,7 +129,7 @@ extern char *saved_command_line;
 extern unsigned int reset_devices;
 
 /* used by init/main.c */
-void setup_arch(char **);
+void setup_arch(void);
 void prepare_namespace(void);
 void __init load_default_modules(void);
 int __init init_rootfs(void);
diff --git a/init/main.c b/init/main.c
index e4a3160991ea..8df5917867b1 100644
--- a/init/main.c
+++ b/init/main.c
@@ -367,15 +367,16 @@ static inline void smp_prepare_cpus(unsigned int maxcpus) { }
  * parsing is performed in place, and we should allow a component to
  * store reference of name/value for future reference.
  */
-static void __init setup_command_line(char *command_line)
+static void __init setup_command_line(void)
 {
 	saved_command_line =
 		memblock_virt_alloc(strlen(boot_command_line) + 1, 0);
 	initcall_command_line =
 		memblock_virt_alloc(strlen(boot_command_line) + 1, 0);
-	static_command_line = memblock_virt_alloc(strlen(command_line) + 1, 0);
+	static_command_line =
+		memblock_virt_alloc(strlen(boot_command_line) + 1, 0);
 	strcpy(saved_command_line, boot_command_line);
-	strcpy(static_command_line, command_line);
+	strcpy(static_command_line, boot_command_line);
 }
 
 /*
@@ -514,7 +515,6 @@ static void __init mm_init(void)
 
 asmlinkage __visible void __init start_kernel(void)
 {
-	char *command_line;
 	char *after_dashes;
 
 	set_task_stack_end_magic(&init_task);
@@ -533,16 +533,16 @@ asmlinkage __visible void __init start_kernel(void)
 	boot_cpu_init();
 	page_address_init();
 	pr_notice("%s", linux_banner);
-	setup_arch(&command_line);
+	setup_arch();
 	/*
 	 * Set up the the initial canary and entropy after arch
 	 * and after adding latent and command line entropy.
 	 */
 	add_latent_entropy();
-	add_device_randomness(command_line, strlen(command_line));
+	add_device_randomness(boot_command_line, strlen(boot_command_line));
 	boot_init_stack_canary();
 	mm_init_cpumask(&init_mm);
-	setup_command_line(command_line);
+	setup_command_line();
 	setup_nr_cpu_ids();
 	setup_per_cpu_areas();
 	boot_cpu_state_init();
-- 
2.14.1




From - Thu Nov 08 21:41:16 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [RFC linux v2] init: make all setup_arch() output string to
 boot_command_line[]
Date: Sat,  7 Apr 2018 09:55:20 +0800
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Xref: news.gmane.org gmane.linux.kernel.arc:3741 gmane.linux.kernel:2734860 gmane.linux.ports.mips.general:64367 gmane.linux.ports.ia64:28800 gmane.linux.ports.sh.devel:56800 gmane.linux.ports.sparc:27534 gmane.linux.ports.hexagon:1634 gmane.linux.uml.devel:16760 gmane.linux.uml.user:15428 gmane.linux.ports.arm.kernel:642825 gmane.linux.ports.parisc:28473 gmane.linux.ports.alpha:4931 gmane.linux.ports.ppc64.devel:155835
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3741>

From: yuan linyu <Linyu.Yuan@alcatel-sbell.com.cn>

then all arch boot parameter handled in the same way in start_kernel()

Signed-off-by: yuan linyu <Linyu.Yuan@alcatel-sbell.com.cn>
---
v2:
	fix kbuild issue of parisc

 arch/alpha/kernel/setup.c          |  4 +---
 arch/arc/kernel/setup.c            |  5 +----
 arch/arm/kernel/setup.c            |  7 +------
 arch/arm64/kernel/setup.c          |  4 +---
 arch/c6x/kernel/setup.c            |  5 +----
 arch/h8300/kernel/setup.c          |  3 +--
 arch/hexagon/kernel/setup.c        | 16 +---------------
 arch/ia64/kernel/setup.c           | 15 ++++++++-------
 arch/m68k/kernel/setup_mm.c        |  5 ++---
 arch/m68k/kernel/setup_no.c        |  3 +--
 arch/microblaze/kernel/setup.c     |  4 +---
 arch/mips/kernel/setup.c           | 11 +++--------
 arch/nds32/kernel/setup.c          |  3 +--
 arch/nios2/kernel/setup.c          |  5 +----
 arch/openrisc/kernel/setup.c       |  4 +---
 arch/parisc/kernel/setup.c         | 11 +++--------
 arch/powerpc/kernel/setup-common.c |  4 +---
 arch/riscv/kernel/setup.c          |  4 +---
 arch/s390/kernel/setup.c           |  6 +-----
 arch/sh/kernel/setup.c             |  7 ++++---
 arch/sparc/kernel/setup_32.c       |  9 +++++----
 arch/sparc/kernel/setup_64.c       |  8 ++++----
 arch/um/kernel/um_arch.c           |  3 +--
 arch/unicore32/kernel/setup.c      |  8 +-------
 arch/x86/kernel/setup.c            |  6 +-----
 arch/xtensa/kernel/setup.c         |  9 +++++----
 include/linux/init.h               |  2 +-
 init/main.c                        | 14 +++++++-------
 28 files changed, 60 insertions(+), 125 deletions(-)

diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index 5576f7646fb6..c74675cf7129 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -505,8 +505,7 @@ register_cpus(void)
 
 arch_initcall(register_cpus);
 
-void __init
-setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	extern char _end[];
 
@@ -566,7 +565,6 @@ setup_arch(char **cmdline_p)
 		strlcpy(command_line, COMMAND_LINE, sizeof command_line);
 	}
 	strcpy(boot_command_line, command_line);
-	*cmdline_p = command_line;
 
 	/* 
 	 * Process command-line arguments.
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index b2cae79a25d7..9cfdcf42bf28 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -456,7 +456,7 @@ static inline int is_kernel(unsigned long addr)
 	return 0;
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 #ifdef CONFIG_ARC_UBOOT_SUPPORT
 	/* make sure that uboot passed pointer to cmdline/dtb is valid */
@@ -487,9 +487,6 @@ void __init setup_arch(char **cmdline_p)
 		}
 	}
 
-	/* Save unparsed command line copy for /proc/cmdline */
-	*cmdline_p = boot_command_line;
-
 	/* To force early parsing of things like mem=xxx */
 	parse_early_param();
 
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index fc40a2b40595..1025e3a37689 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -153,7 +153,6 @@ EXPORT_SYMBOL(elf_platform);
 
 static const char *cpu_name;
 static const char *machine_name;
-static char __initdata cmd_line[COMMAND_LINE_SIZE];
 const struct machine_desc *machine_desc __initdata;
 
 static union { char c[4]; unsigned long l; } endian_test __initdata = { { 'l', '?', '?', 'b' } };
@@ -1061,7 +1060,7 @@ void __init hyp_mode_check(void)
 #endif
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	const struct machine_desc *mdesc;
 
@@ -1091,10 +1090,6 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.end_data   = (unsigned long) _edata;
 	init_mm.brk	   = (unsigned long) _end;
 
-	/* populate cmd_line too for later use, preserving boot_command_line */
-	strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE);
-	*cmdline_p = cmd_line;
-
 	early_fixmap_init();
 	early_ioremap_init();
 
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 30ad2f085d1f..c7ba4d32e7f7 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -243,15 +243,13 @@ static void __init request_standard_resources(void)
 
 u64 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	init_mm.start_code = (unsigned long) _text;
 	init_mm.end_code   = (unsigned long) _etext;
 	init_mm.end_data   = (unsigned long) _edata;
 	init_mm.brk	   = (unsigned long) _end;
 
-	*cmdline_p = boot_command_line;
-
 	early_fixmap_init();
 	early_ioremap_init();
 
diff --git a/arch/c6x/kernel/setup.c b/arch/c6x/kernel/setup.c
index 786e36e2f61d..012c8e746889 100644
--- a/arch/c6x/kernel/setup.c
+++ b/arch/c6x/kernel/setup.c
@@ -294,16 +294,13 @@ notrace void __init machine_init(unsigned long dt_ptr)
 	parse_early_param();
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	int bootmap_size;
 	struct memblock_region *reg;
 
 	printk(KERN_INFO "Initializing kernel\n");
 
-	/* Initialize command line */
-	*cmdline_p = boot_command_line;
-
 	memory_end = ram_end;
 	memory_end &= ~(PAGE_SIZE - 1);
 
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
index a4d0470c10a9..bb54c2087f13 100644
--- a/arch/h8300/kernel/setup.c
+++ b/arch/h8300/kernel/setup.c
@@ -117,7 +117,7 @@ static void __init bootmem_init(void)
 	}
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	unflatten_and_copy_device_tree();
 
@@ -131,7 +131,6 @@ void __init setup_arch(char **cmdline_p)
 
 	if (*command_line)
 		strcpy(boot_command_line, command_line);
-	*cmdline_p = boot_command_line;
 
 	parse_early_param();
 
diff --git a/arch/hexagon/kernel/setup.c b/arch/hexagon/kernel/setup.c
index 6981949f5df3..a0348dfad265 100644
--- a/arch/hexagon/kernel/setup.c
+++ b/arch/hexagon/kernel/setup.c
@@ -34,7 +34,6 @@
 #include <asm/vm_mmu.h>
 #include <asm/time.h>
 
-char cmd_line[COMMAND_LINE_SIZE];
 static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
 
 int on_simulator;
@@ -44,12 +43,7 @@ void calibrate_delay(void)
 	loops_per_jiffy = thread_freq_mhz * 1000000 / HZ;
 }
 
-/*
- * setup_arch -  high level architectural setup routine
- * @cmdline_p: pointer to pointer to command-line arguments
- */
-
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	char *p = &external_cmdline_buffer;
 
@@ -84,14 +78,6 @@ void __init setup_arch(char **cmdline_p)
 		strlcpy(boot_command_line, default_command_line,
 			COMMAND_LINE_SIZE);
 
-	/*
-	 * boot_command_line and the value set up by setup_arch
-	 * are both picked up by the init code. If no reason to
-	 * make them different, pass the same pointer back.
-	 */
-	strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE);
-	*cmdline_p = cmd_line;
-
 	parse_early_param();
 
 	setup_arch_memory();
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index dee56bcb993d..75196264dd4e 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -527,15 +527,16 @@ int __init reserve_elfcorehdr(u64 *start, u64 *end)
 
 #endif /* CONFIG_PROC_VMCORE */
 
-void __init
-setup_arch (char **cmdline_p)
+void __init setup_arch (void)
 {
+	char *cmdline_p;
+
 	unw_init();
 
 	ia64_patch_vtop((u64) __start___vtop_patchlist, (u64) __end___vtop_patchlist);
 
-	*cmdline_p = __va(ia64_boot_param->command_line);
-	strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE);
+	cmdline_p = __va(ia64_boot_param->command_line);
+	strlcpy(boot_command_line, cmdline_p, COMMAND_LINE_SIZE);
 
 	efi_init();
 	io_port_init();
@@ -546,12 +547,12 @@ setup_arch (char **cmdline_p)
 	 * that ia64_mv is initialised before any command line
 	 * settings may cause console setup to occur
 	 */
-	machvec_init_from_cmdline(*cmdline_p);
+	machvec_init_from_cmdline(cmdline_p);
 #endif
 
 	parse_early_param();
 
-	if (early_console_setup(*cmdline_p) == 0)
+	if (early_console_setup(cmdline_p) == 0)
 		mark_bsp_online();
 
 #ifdef CONFIG_ACPI
@@ -618,7 +619,7 @@ setup_arch (char **cmdline_p)
 	if (!nomca)
 		ia64_mca_init();
 
-	platform_setup(cmdline_p);
+	platform_setup(&cmdline_p);
 #ifndef CONFIG_IA64_HP_SIM
 	check_sal_cache_flush();
 #endif
diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c
index dd25bfc22fb4..38ccaf3e0274 100644
--- a/arch/m68k/kernel/setup_mm.c
+++ b/arch/m68k/kernel/setup_mm.c
@@ -222,7 +222,7 @@ static void __init m68k_parse_bootinfo(const struct bi_record *record)
 #endif
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 #ifndef CONFIG_SUN3
 	int i;
@@ -272,8 +272,7 @@ void __init setup_arch(char **cmdline_p)
 	m68k_command_line[CL_SIZE - 1] = 0;
 #endif /* CONFIG_BOOTPARAM */
 	process_uboot_commandline(&m68k_command_line[0], CL_SIZE);
-	*cmdline_p = m68k_command_line;
-	memcpy(boot_command_line, *cmdline_p, CL_SIZE);
+	memcpy(boot_command_line, m68k_command_line, CL_SIZE);
 
 	parse_early_param();
 
diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c
index a98af1018201..8b244d4ea603 100644
--- a/arch/m68k/kernel/setup_no.c
+++ b/arch/m68k/kernel/setup_no.c
@@ -84,7 +84,7 @@ void (*mach_power_off)(void);
 #define	CPU_INSTR_PER_JIFFY	16
 #endif
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	int bootmap_size;
 
@@ -143,7 +143,6 @@ void __init setup_arch(char **cmdline_p)
 		 __bss_stop, memory_start, memory_start, memory_end);
 
 	/* Keep a copy of command line */
-	*cmdline_p = &command_line[0];
 	memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
 	boot_command_line[COMMAND_LINE_SIZE-1] = 0;
 
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index be98ffe28ca8..632b7546effc 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -50,10 +50,8 @@ unsigned int boot_cpuid;
  */
 char cmd_line[COMMAND_LINE_SIZE] __attribute__ ((section(".data")));
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
-	*cmdline_p = boot_command_line;
-
 	console_verbose();
 
 	unflatten_device_tree();
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 5f8b0a9e30b3..2bff67be95d6 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -64,7 +64,6 @@ EXPORT_SYMBOL(mips_machtype);
 
 struct boot_mem_map boot_mem_map;
 
-static char __initdata command_line[COMMAND_LINE_SIZE];
 char __initdata arcs_cmdline[COMMAND_LINE_SIZE];
 
 #ifdef CONFIG_CMDLINE_BOOL
@@ -829,7 +828,7 @@ static void __init request_crashkernel(struct resource *res)
 #define BUILTIN_EXTEND_WITH_PROM	\
 	IS_ENABLED(CONFIG_MIPS_CMDLINE_BUILTIN_EXTEND)
 
-static void __init arch_mem_init(char **cmdline_p)
+static void __init arch_mem_init(void)
 {
 	struct memblock_region *reg;
 	extern void plat_mem_setup(void);
@@ -881,10 +880,6 @@ static void __init arch_mem_init(char **cmdline_p)
 	pr_info("Determined physical RAM map:\n");
 	print_memory_map();
 
-	strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
-
-	*cmdline_p = command_line;
-
 	parse_early_param();
 
 	if (usermem) {
@@ -1002,7 +997,7 @@ static void __init prefill_possible_map(void)
 static inline void prefill_possible_map(void) {}
 #endif
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	cpu_probe();
 	mips_cm_probe();
@@ -1023,7 +1018,7 @@ void __init setup_arch(char **cmdline_p)
 #endif
 #endif
 
-	arch_mem_init(cmdline_p);
+	arch_mem_init();
 
 	resource_init();
 	plat_smp_setup();
diff --git a/arch/nds32/kernel/setup.c b/arch/nds32/kernel/setup.c
index ba910e9e4ecb..7df72753dd9a 100644
--- a/arch/nds32/kernel/setup.c
+++ b/arch/nds32/kernel/setup.c
@@ -276,7 +276,7 @@ static void __init setup_memory(void)
 	memblock_dump_all();
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	early_init_devtree( __dtb_start);
 
@@ -303,7 +303,6 @@ void __init setup_arch(char **cmdline_p)
 			conswitchp = &dummy_con;
 	}
 
-	*cmdline_p = boot_command_line;
 	early_trap_init();
 }
 
diff --git a/arch/nios2/kernel/setup.c b/arch/nios2/kernel/setup.c
index 926a02b17b31..e8d140f1d40c 100644
--- a/arch/nios2/kernel/setup.c
+++ b/arch/nios2/kernel/setup.c
@@ -141,7 +141,7 @@ asmlinkage void __init nios2_boot_init(unsigned r4, unsigned r5, unsigned r6,
 	parse_early_param();
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	int bootmap_size;
 
@@ -156,9 +156,6 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.brk = (unsigned long) _end;
 	init_task.thread.kregs = &fake_regs;
 
-	/* Keep a copy of command line */
-	*cmdline_p = boot_command_line;
-
 	min_low_pfn = PFN_UP(memory_start);
 	max_low_pfn = PFN_DOWN(memory_end);
 	max_mapnr = max_low_pfn;
diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index 9d28ab14d139..d73e1faa88d1 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -283,7 +283,7 @@ void calibrate_delay(void)
 		(loops_per_jiffy / (5000 / HZ)) % 100, loops_per_jiffy);
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	unflatten_and_copy_device_tree();
 
@@ -320,8 +320,6 @@ void __init setup_arch(char **cmdline_p)
 		conswitchp = &dummy_con;
 #endif
 
-	*cmdline_p = boot_command_line;
-
 	printk(KERN_INFO "OpenRISC Linux -- http://openrisc.io\n");
 }
 
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 0e9675f857a5..0a78a897959a 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -51,8 +51,6 @@
 #include <asm/unwind.h>
 #include <asm/smp.h>
 
-static char __initdata command_line[COMMAND_LINE_SIZE];
-
 /* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */
 struct proc_dir_entry * proc_runway_root __read_mostly = NULL;
 struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
@@ -63,7 +61,7 @@ int parisc_bus_is_phys __read_mostly = 1;	/* Assume no IOMMU is present */
 EXPORT_SYMBOL(parisc_bus_is_phys);
 #endif
 
-void __init setup_cmdline(char **cmdline_p)
+void __init setup_cmdline(void)
 {
 	extern unsigned int boot_args[];
 
@@ -85,9 +83,6 @@ void __init setup_cmdline(char **cmdline_p)
 		}
 #endif
 	}
-
-	strcpy(command_line, boot_command_line);
-	*cmdline_p = command_line;
 }
 
 #ifdef CONFIG_PA11
@@ -119,7 +114,7 @@ void __init dma_ops_init(void)
 
 extern void collect_boot_cpu_data(void);
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 #ifdef CONFIG_64BIT
 	extern int parisc_narrow_firmware;
@@ -160,7 +155,7 @@ void __init setup_arch(char **cmdline_p)
 	}
 #endif
 	setup_pdc();
-	setup_cmdline(cmdline_p);
+	setup_cmdline();
 	collect_boot_cpu_data();
 	do_memory_inventory();  /* probe for physical memory */
 	parisc_cache_init();
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index d73ec518ef80..b88ce4afaafd 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -839,10 +839,8 @@ static __init void print_system_info(void)
  * Called into from start_kernel this initializes memblock, which is used
  * to manage page allocation until mem_init is called.
  */
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
-	*cmdline_p = boot_command_line;
-
 	/* Set a half-reasonable default so udelay does something sensible */
 	loops_per_jiffy = 500000000 / HZ;
 
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index c11f40c1b2a8..dee21fd2f5c2 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -192,10 +192,8 @@ static void __init setup_bootmem(void)
 	}
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
-	*cmdline_p = boot_command_line;
-
 	parse_early_param();
 
 	init_mm.start_code = (unsigned long) _stext;
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index a6a91f01a17a..6addb5afc59e 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -867,7 +867,7 @@ static void __init setup_task_size(void)
  * was printed.
  */
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
         /*
          * print what head.S has found out about the machine
@@ -880,10 +880,6 @@ void __init setup_arch(char **cmdline_p)
 	else if (MACHINE_IS_LPAR)
 		pr_info("Linux is running natively in 64-bit mode\n");
 
-	/* Have one command line that is parsed and saved in /proc/cmdline */
-	/* boot_command_line has been already set up in early.c */
-	*cmdline_p = boot_command_line;
-
         ROOT_DEV = Root_RAM0;
 
 	/* Is init_mm really needed? */
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index b95c411d0333..c46646f0c3c5 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -270,8 +270,10 @@ void __ref sh_fdt_init(phys_addr_t dt_phys)
 }
 #endif
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
+	char *cmdline_p = command_line;
+
 	enable_mmu();
 
 	ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
@@ -319,7 +321,6 @@ void __init setup_arch(char **cmdline_p)
 
 	/* Save unparsed command line copy for /proc/cmdline */
 	memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
-	*cmdline_p = command_line;
 
 	parse_early_param();
 
@@ -338,7 +339,7 @@ void __init setup_arch(char **cmdline_p)
 
 	/* Perform the machine specific initialisation */
 	if (likely(sh_mv.mv_setup))
-		sh_mv.mv_setup(cmdline_p);
+		sh_mv.mv_setup(&cmdline_p);
 
 	plat_smp_setup();
 }
diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c
index 13664c377196..5bced97cc5f8 100644
--- a/arch/sparc/kernel/setup_32.c
+++ b/arch/sparc/kernel/setup_32.c
@@ -294,19 +294,20 @@ void __init sparc32_start_kernel(struct linux_romvec *rp)
 	start_kernel();
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	int i;
+	char *cmdline_p;
 	unsigned long highest_paddr;
 
 	sparc_ttable = &trapbase;
 
 	/* Initialize PROM console and command line. */
-	*cmdline_p = prom_getbootargs();
-	strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE);
+	cmdline_p = prom_getbootargs();
+	strlcpy(boot_command_line, cmdline_p, COMMAND_LINE_SIZE);
 	parse_early_param();
 
-	boot_flags_init(*cmdline_p);
+	boot_flags_init(cmdline_p);
 
 	register_console(&prom_early_console);
 
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index 7944b3ca216a..9f6edffa6a4b 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -630,14 +630,14 @@ void __init alloc_irqstack_bootmem(void)
 	}
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	/* Initialize PROM console and command line. */
-	*cmdline_p = prom_getbootargs();
-	strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE);
+	char *cmdline_p = prom_getbootargs();
+	strlcpy(boot_command_line, cmdline_p, COMMAND_LINE_SIZE);
 	parse_early_param();
 
-	boot_flags_init(*cmdline_p);
+	boot_flags_init(cmdline_p);
 #ifdef CONFIG_EARLYFB
 	if (btext_find_display())
 #endif
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index a818ccef30ca..73d62cf96149 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -339,7 +339,7 @@ int __init __weak read_initrd(void)
 	return 0;
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	stack_protections((unsigned long) &init_thread_info);
 	setup_physmem(uml_physmem, uml_reserved, physmem_size, highmem);
@@ -348,7 +348,6 @@ void __init setup_arch(char **cmdline_p)
 
 	paging_init();
 	strlcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
-	*cmdline_p = command_line;
 	setup_hostinfo(host_info, sizeof host_info);
 }
 
diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
index c2bffa5614a4..c13a07eeed0b 100644
--- a/arch/unicore32/kernel/setup.c
+++ b/arch/unicore32/kernel/setup.c
@@ -60,8 +60,6 @@ struct screen_info screen_info;
 char elf_platform[ELF_PLATFORM_SIZE];
 EXPORT_SYMBOL(elf_platform);
 
-static char __initdata cmd_line[COMMAND_LINE_SIZE];
-
 static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
 
 /*
@@ -235,7 +233,7 @@ static int __init customize_machine(void)
 }
 arch_initcall(customize_machine);
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	char *from = default_command_line;
 
@@ -249,10 +247,6 @@ void __init setup_arch(char **cmdline_p)
 	/* parse_early_param needs a boot_command_line */
 	strlcpy(boot_command_line, from, COMMAND_LINE_SIZE);
 
-	/* populate cmd_line too for later use, preserving boot_command_line */
-	strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE);
-	*cmdline_p = cmd_line;
-
 	parse_early_param();
 
 	uc32_memblock_init(&meminfo);
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 6285697b6e56..6e3347dde550 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -219,7 +219,6 @@ unsigned long saved_video_mode;
 #define RAMDISK_PROMPT_FLAG		0x8000
 #define RAMDISK_LOAD_FLAG		0x4000
 
-static char __initdata command_line[COMMAND_LINE_SIZE];
 #ifdef CONFIG_CMDLINE_BOOL
 static char __initdata builtin_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE;
 #endif
@@ -812,7 +811,7 @@ dump_kernel_offset(struct notifier_block *self, unsigned long v, void *p)
  * Note: On x86_64, fixmaps are ready for use even before this is called.
  */
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
 	memblock_reserve(__pa_symbol(_text),
 			 (unsigned long)__bss_stop - (unsigned long)_text);
@@ -933,9 +932,6 @@ void __init setup_arch(char **cmdline_p)
 #endif
 #endif
 
-	strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
-	*cmdline_p = command_line;
-
 	/*
 	 * x86_configure_nx() is called before parse_early_param() to detect
 	 * whether hardware doesn't support NX (so that the early EHCI debug
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index 686a27444bba..0409fa85bfdd 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -309,8 +309,10 @@ static inline int mem_reserve(unsigned long start, unsigned long end)
 	return memblock_reserve(start, end - start);
 }
 
-void __init setup_arch(char **cmdline_p)
+void __init setup_arch(void)
 {
+	char *cmdline_p = command_line;
+
 	pr_info("config ID: %08x:%08x\n",
 		get_sr(SREG_EPC), get_sr(SREG_EXCSAVE));
 	if (get_sr(SREG_EPC) != XCHAL_HW_CONFIGID0 ||
@@ -318,9 +320,8 @@ void __init setup_arch(char **cmdline_p)
 		pr_info("built for config ID: %08x:%08x\n",
 			XCHAL_HW_CONFIGID0, XCHAL_HW_CONFIGID1);
 
-	*cmdline_p = command_line;
-	platform_setup(cmdline_p);
-	strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE);
+	platform_setup(&cmdline_p);
+	strlcpy(boot_command_line, cmdline_p, COMMAND_LINE_SIZE);
 
 	/* Reserve some memory regions */
 
diff --git a/include/linux/init.h b/include/linux/init.h
index bc27cf03c41e..206b98d77cb4 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -129,7 +129,7 @@ extern char *saved_command_line;
 extern unsigned int reset_devices;
 
 /* used by init/main.c */
-void setup_arch(char **);
+void setup_arch(void);
 void prepare_namespace(void);
 void __init load_default_modules(void);
 int __init init_rootfs(void);
diff --git a/init/main.c b/init/main.c
index e4a3160991ea..8df5917867b1 100644
--- a/init/main.c
+++ b/init/main.c
@@ -367,15 +367,16 @@ static inline void smp_prepare_cpus(unsigned int maxcpus) { }
  * parsing is performed in place, and we should allow a component to
  * store reference of name/value for future reference.
  */
-static void __init setup_command_line(char *command_line)
+static void __init setup_command_line(void)
 {
 	saved_command_line =
 		memblock_virt_alloc(strlen(boot_command_line) + 1, 0);
 	initcall_command_line =
 		memblock_virt_alloc(strlen(boot_command_line) + 1, 0);
-	static_command_line = memblock_virt_alloc(strlen(command_line) + 1, 0);
+	static_command_line =
+		memblock_virt_alloc(strlen(boot_command_line) + 1, 0);
 	strcpy(saved_command_line, boot_command_line);
-	strcpy(static_command_line, command_line);
+	strcpy(static_command_line, boot_command_line);
 }
 
 /*
@@ -514,7 +515,6 @@ static void __init mm_init(void)
 
 asmlinkage __visible void __init start_kernel(void)
 {
-	char *command_line;
 	char *after_dashes;
 
 	set_task_stack_end_magic(&init_task);
@@ -533,16 +533,16 @@ asmlinkage __visible void __init start_kernel(void)
 	boot_cpu_init();
 	page_address_init();
 	pr_notice("%s", linux_banner);
-	setup_arch(&command_line);
+	setup_arch();
 	/*
 	 * Set up the the initial canary and entropy after arch
 	 * and after adding latent and command line entropy.
 	 */
 	add_latent_entropy();
-	add_device_randomness(command_line, strlen(command_line));
+	add_device_randomness(boot_command_line, strlen(boot_command_line));
 	boot_init_stack_canary();
 	mm_init_cpumask(&init_mm);
-	setup_command_line(command_line);
+	setup_command_line();
 	setup_nr_cpu_ids();
 	setup_per_cpu_areas();
 	boot_cpu_state_init();
-- 
2.14.1

From - Thu Nov 08 21:41:16 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 1/2] sound: ad1889: Replace mdelay with usleep_range in snd_ad1889_init
Date: Mon,  9 Apr 2018 21:03:20 +0800
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snd_ad1889_init() is never called in atomic context.

The call chain ending up at snd_ad1889_init() is:
[1] snd_ad1889_init() <- snd_ad1889_create() <- snd_ad1889_probe()

snd_ad1889_probe() is only set as ".probe" in struct pci_driver.
This function is not called in atomic context.

Despite never getting called from atomic context, snd_ad1889_init()
calls mdelay for busy wait.
This is not necessary and can be replaced with usleep_range to
avoid busy waiting.

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
---
 sound/pci/ad1889.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index 0bf2c04..d4965eb 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -872,7 +872,7 @@ struct snd_ad1889 {
 	ad1889_writew(chip, AD_DS_CCS, AD_DS_CCS_CLKEN); /* turn on clock */
 	ad1889_readw(chip, AD_DS_CCS);	/* flush posted write */
 
-	mdelay(10);
+	usleep_range(10000, 11000);
 
 	/* enable Master and Target abort interrupts */
 	ad1889_writel(chip, AD_DMA_DISR, AD_DMA_DISR_PMAE | AD_DMA_DISR_PTAE);
-- 
1.9.1



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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.alsa.devel
Subject: [PATCH 2/2] sound: ad1889: Replace mdelay with usleep_range in snd_ad1889_ac97_ready
Date: Mon,  9 Apr 2018 21:03:38 +0800
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snd_ad1889_ac97_ready() is never called in atomic context.

The call chain ending up at snd_ad1889_ac97_ready() is:
[1] snd_ad1889_ac97_ready() <- snd_ad1889_ac97_xinit() <- 
	snd_ad1889_ac97_init() <- snd_ad1889_probe()

snd_ad1889_probe() is only set as ".probe" in struct pci_driver.
This function is not called in atomic context.

Despite never getting called from atomic context, snd_ad1889_ac97_ready()
calls mdelay for busy wait.
This is not necessary and can be replaced with usleep_range to
avoid busy waiting.

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
---
 sound/pci/ad1889.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index 0bf2c04..a2a8e1d 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -258,7 +258,7 @@ struct snd_ad1889 {
 	
 	while (!(ad1889_readw(chip, AD_AC97_ACIC) & AD_AC97_ACIC_ACRDY) 
 			&& --retry)
-		mdelay(1);
+		usleep_range(1000, 2000);
 	if (!retry) {
 		dev_err(chip->card->dev, "[%s] Link is not ready.\n",
 			__func__);
-- 
1.9.1



From - Thu Nov 08 21:41:16 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Takashi Iwai <tiwai@suse.de>
Newsgroups: gmane.linux.kernel,gmane.linux.alsa.devel,gmane.linux.ports.parisc
Subject: Re: [PATCH 1/2] sound: ad1889: Replace mdelay with usleep_range in snd_ad1889_init
Date: Mon, 09 Apr 2018 15:17:09 +0200
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On Mon, 09 Apr 2018 15:03:20 +0200,
Jia-Ju Bai wrote:
> 
> snd_ad1889_init() is never called in atomic context.
> 
> The call chain ending up at snd_ad1889_init() is:
> [1] snd_ad1889_init() <- snd_ad1889_create() <- snd_ad1889_probe()
> 
> snd_ad1889_probe() is only set as ".probe" in struct pci_driver.
> This function is not called in atomic context.
> 
> Despite never getting called from atomic context, snd_ad1889_init()
> calls mdelay for busy wait.
> This is not necessary and can be replaced with usleep_range to
> avoid busy waiting.
> 
> This is found by a static analysis tool named DCNS written by myself.
> 
> Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>

Since it's no urgent fix, I'll postpone to 4.18.


thanks,

Takashi


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From: Jia-Ju Bai <baijiaju1990@gmail.com>
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Subject: [PATCH] dec: tulip: de4x5: Replace mdelay with usleep_range in de4x5_hw_init
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de4x5_hw_init() is never called in atomic context.

de4x5_hw_init() is only called by de4x5_pci_probe(), which is only 
set as ".probe" in struct pci_driver.

Despite never getting called from atomic context, de4x5_hw_init() 
calls mdelay() to busily wait.
This is not necessary and can be replaced with usleep_range() to 
avoid busy waiting.

This is found by a static analysis tool named DCNS written by myself.
And I also manually check it.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
---
 drivers/net/ethernet/dec/tulip/de4x5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index 0affee9..3fb0119 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -1107,7 +1107,7 @@ static int (*dc_infoblock[])(struct net_device *dev, u_char, u_char *) = {
 	pdev = to_pci_dev (gendev);
 	pci_write_config_byte(pdev, PCI_CFDA_PSM, WAKEUP);
     }
-    mdelay(10);
+    usleep(10000, 11000);
 
     RESET_DE4X5;
 
-- 
1.9.1



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Subject: Re: [PATCH] dec: tulip: de4x5: Replace mdelay with usleep_range in
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Hi Jia-Ju,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on net-next/master]
[also build test ERROR on v4.16 next-20180411]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Jia-Ju-Bai/dec-tulip-de4x5-Replace-mdelay-with-usleep_range-in-de4x5_hw_init/20180411-222527
config: i386-randconfig-x015-201814 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   drivers/net//ethernet/dec/tulip/de4x5.c: In function 'de4x5_hw_init':
>> drivers/net//ethernet/dec/tulip/de4x5.c:1110:5: error: implicit declaration of function 'usleep'; did you mean 'ssleep'? [-Werror=implicit-function-declaration]
        usleep(10000, 11000);
        ^~~~~~
        ssleep
   cc1: some warnings being treated as errors

vim +1110 drivers/net//ethernet/dec/tulip/de4x5.c

  1091	
  1092	
  1093	static int
  1094	de4x5_hw_init(struct net_device *dev, u_long iobase, struct device *gendev)
  1095	{
  1096	    char name[DE4X5_NAME_LENGTH + 1];
  1097	    struct de4x5_private *lp = netdev_priv(dev);
  1098	    struct pci_dev *pdev = NULL;
  1099	    int i, status=0;
  1100	
  1101	    dev_set_drvdata(gendev, dev);
  1102	
  1103	    /* Ensure we're not sleeping */
  1104	    if (lp->bus == EISA) {
  1105		outb(WAKEUP, PCI_CFPM);
  1106	    } else {
  1107		pdev = to_pci_dev (gendev);
  1108		pci_write_config_byte(pdev, PCI_CFDA_PSM, WAKEUP);
  1109	    }
> 1110	    usleep(10000, 11000);
  1111	
  1112	    RESET_DE4X5;
  1113	
  1114	    if ((inl(DE4X5_STS) & (STS_TS | STS_RS)) != 0) {
  1115		return -ENXIO;                       /* Hardware could not reset */
  1116	    }
  1117	
  1118	    /*
  1119	    ** Now find out what kind of DC21040/DC21041/DC21140 board we have.
  1120	    */
  1121	    lp->useSROM = false;
  1122	    if (lp->bus == PCI) {
  1123		PCI_signature(name, lp);
  1124	    } else {
  1125		EISA_signature(name, gendev);
  1126	    }
  1127	
  1128	    if (*name == '\0') {                     /* Not found a board signature */
  1129		return -ENXIO;
  1130	    }
  1131	
  1132	    dev->base_addr = iobase;
  1133	    printk ("%s: %s at 0x%04lx", dev_name(gendev), name, iobase);
  1134	
  1135	    status = get_hw_addr(dev);
  1136	    printk(", h/w address %pM\n", dev->dev_addr);
  1137	
  1138	    if (status != 0) {
  1139		printk("      which has an Ethernet PROM CRC error.\n");
  1140		return -ENXIO;
  1141	    } else {
  1142		skb_queue_head_init(&lp->cache.queue);
  1143		lp->cache.gepc = GEP_INIT;
  1144		lp->asBit = GEP_SLNK;
  1145		lp->asPolarity = GEP_SLNK;
  1146		lp->asBitValid = ~0;
  1147		lp->timeout = -1;
  1148		lp->gendev = gendev;
  1149		spin_lock_init(&lp->lock);
  1150		timer_setup(&lp->timer, de4x5_ast, 0);
  1151		de4x5_parse_params(dev);
  1152	
  1153		/*
  1154		** Choose correct autosensing in case someone messed up
  1155		*/
  1156	        lp->autosense = lp->params.autosense;
  1157	        if (lp->chipset != DC21140) {
  1158	            if ((lp->chipset==DC21040) && (lp->params.autosense&TP_NW)) {
  1159	                lp->params.autosense = TP;
  1160	            }
  1161	            if ((lp->chipset==DC21041) && (lp->params.autosense&BNC_AUI)) {
  1162	                lp->params.autosense = BNC;
  1163	            }
  1164	        }
  1165		lp->fdx = lp->params.fdx;
  1166		sprintf(lp->adapter_name,"%s (%s)", name, dev_name(gendev));
  1167	
  1168		lp->dma_size = (NUM_RX_DESC + NUM_TX_DESC) * sizeof(struct de4x5_desc);
  1169	#if defined(__alpha__) || defined(__powerpc__) || defined(CONFIG_SPARC) || defined(DE4X5_DO_MEMCPY)
  1170		lp->dma_size += RX_BUFF_SZ * NUM_RX_DESC + DE4X5_ALIGN;
  1171	#endif
  1172		lp->rx_ring = dma_alloc_coherent(gendev, lp->dma_size,
  1173						 &lp->dma_rings, GFP_ATOMIC);
  1174		if (lp->rx_ring == NULL) {
  1175		    return -ENOMEM;
  1176		}
  1177	
  1178		lp->tx_ring = lp->rx_ring + NUM_RX_DESC;
  1179	
  1180		/*
  1181		** Set up the RX descriptor ring (Intels)
  1182		** Allocate contiguous receive buffers, long word aligned (Alphas)
  1183		*/
  1184	#if !defined(__alpha__) && !defined(__powerpc__) && !defined(CONFIG_SPARC) && !defined(DE4X5_DO_MEMCPY)
  1185		for (i=0; i<NUM_RX_DESC; i++) {
  1186		    lp->rx_ring[i].status = 0;
  1187		    lp->rx_ring[i].des1 = cpu_to_le32(RX_BUFF_SZ);
  1188		    lp->rx_ring[i].buf = 0;
  1189		    lp->rx_ring[i].next = 0;
  1190		    lp->rx_skb[i] = (struct sk_buff *) 1;     /* Dummy entry */
  1191		}
  1192	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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--fdj2RfSjLxBAspz7--


From - Thu Nov 08 21:41:16 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Jia-Ju Bai <baijiaju1990@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.network,gmane.linux.ports.parisc
Subject: [PATCH v2] dec: tulip: de4x5: Replace mdelay with usleep_range in de4x5_hw_init
Date: Wed, 11 Apr 2018 23:39:42 +0800
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Approved: news@gmane.org
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Cc: netdev@vger.kernel.org, linux-parisc@vger.kernel.org,
        linux-kernel@vger.kernel.org, Jia-Ju Bai <baijiaju1990@gmail.com>
To: davem@davemloft.net, stephen@networkplumber.org,
        johannes.berg@intel.com, arvind.yadav.cs@gmail.com,
        dhowells@redhat.com
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de4x5_hw_init() is never called in atomic context.

de4x5_hw_init() is only called by de4x5_pci_probe(), which is only 
set as ".probe" in struct pci_driver.

Despite never getting called from atomic context, de4x5_hw_init() 
calls mdelay() to busily wait.
This is not necessary and can be replaced with usleep_range() to 
avoid busy waiting.

This is found by a static analysis tool named DCNS written by myself.
And I also manually check it.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
---
v2:
* Use usleep_range() to correct usleep() in v1.
	
---
 drivers/net/ethernet/dec/tulip/de4x5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index 0affee9..3fb0119 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -1107,7 +1107,7 @@ static int (*dc_infoblock[])(struct net_device *dev, u_char, u_char *) = {
 	pdev = to_pci_dev (gendev);
 	pci_write_config_byte(pdev, PCI_CFDA_PSM, WAKEUP);
     }
-    mdelay(10);
+    usleep_range(10000, 11000);
 
     RESET_DE4X5;
 
-- 
1.9.1



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Subject: Re: [PATCH v2] dec: tulip: de4x5: Replace mdelay with usleep_range
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On Wed, 2018-04-11 at 23:39 +0800, Jia-Ju Bai wrote:
> de4x5_hw_init() is never called in atomic context.
> 
> de4x5_hw_init() is only called by de4x5_pci_probe(), which is only 
> set as ".probe" in struct pci_driver.
> 
> Despite never getting called from atomic context, de4x5_hw_init() 
> calls mdelay() to busily wait. This is not necessary and can be
> replaced with usleep_range() to  avoid busy waiting.
> 
> This is found by a static analysis tool named DCNS written by myself.
> And I also manually check it.

Did you actually test this?  The usual reason for wanting m/udelay is
that the timing must be exact.  The driver is filled with mdelay()s for
this reason.  The one you've picked on is in the init path so it won't
affect the runtime in any way.  I also don't think we have the hrtimer
machinery for usleep_range() to work properly on parisc, so I don't
think the replacement works.

James



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Subject: Re: [PATCH v2] dec: tulip: de4x5: Replace mdelay with usleep_range in
 de4x5_hw_init
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On 2018/4/12 0:16, James Bottomley wrote:
> On Wed, 2018-04-11 at 23:39 +0800, Jia-Ju Bai wrote:
>> de4x5_hw_init() is never called in atomic context.
>>
>> de4x5_hw_init() is only called by de4x5_pci_probe(), which is only
>> set as ".probe" in struct pci_driver.
>>
>> Despite never getting called from atomic context, de4x5_hw_init()
>> calls mdelay() to busily wait. This is not necessary and can be
>> replaced with usleep_range() to  avoid busy waiting.
>>
>> This is found by a static analysis tool named DCNS written by myself.
>> And I also manually check it.
> Did you actually test this?  The usual reason for wanting m/udelay is
> that the timing must be exact.  The driver is filled with mdelay()s for
> this reason.  The one you've picked on is in the init path so it won't
> affect the runtime in any way.  I also don't think we have the hrtimer
> machinery for usleep_range() to work properly on parisc, so I don't
> think the replacement works.
>
> James
>

Hello, James.
Thanks for your reply :)

I agree that usleep_range() here will not much affect the real execution 
of this driver.

But I think usleep_range() can more opportunity for other threads to use 
the CPU core to schedule during waiting.
That is why I detect mdelay() that can be replaced with msleep() or 
usleep_range().


Best wishes,
Jia-Ju Bai


From - Thu Nov 08 21:41:16 2018
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Subject: Re: [PATCH v2] dec: tulip: de4x5: Replace mdelay with usleep_range in
 de4x5_hw_init
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On Thursday 12 April 2018 07:00 AM, Jia-Ju Bai wrote:
>
>
> On 2018/4/12 0:16, James Bottomley wrote:
>> On Wed, 2018-04-11 at 23:39 +0800, Jia-Ju Bai wrote:
>>> de4x5_hw_init() is never called in atomic context.
>>>
>>> de4x5_hw_init() is only called by de4x5_pci_probe(), which is only
>>> set as ".probe" in struct pci_driver.
>>>
>>> Despite never getting called from atomic context, de4x5_hw_init()
>>> calls mdelay() to busily wait. This is not necessary and can be
>>> replaced with usleep_range() to  avoid busy waiting.
>>>
>>> This is found by a static analysis tool named DCNS written by myself.
>>> And I also manually check it.
>> Did you actually test this?  The usual reason for wanting m/udelay is
>> that the timing must be exact.  The driver is filled with mdelay()s for
>> this reason.  The one you've picked on is in the init path so it won't
>> affect the runtime in any way.  I also don't think we have the hrtimer
>> machinery for usleep_range() to work properly on parisc, so I don't
>> think the replacement works.
>>
>> James
>>
>
> Hello, James.
> Thanks for your reply :)
>
> I agree that usleep_range() here will not much affect the real 
> execution of this driver.
>
> But I think usleep_range() can more opportunity for other threads to 
> use the CPU core to schedule during waiting.
> That is why I detect mdelay() that can be replaced with msleep() or 
> usleep_range().
>

James is right, You have added all usleep_range() during system boot-up 
time.
During boot-up system will run as single threaded. Where this change will
not make much sense. System first priority is match the exact timing on
each and every boot-up.

~arvind

>
> Best wishes,
> Jia-Ju Bai



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Subject: Re: [PATCH v2] dec: tulip: de4x5: Replace mdelay with usleep_range in
 de4x5_hw_init
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On 2018/4/12 10:21, arvindY wrote:
>
>
> On Thursday 12 April 2018 07:00 AM, Jia-Ju Bai wrote:
>>
>>
>> On 2018/4/12 0:16, James Bottomley wrote:
>>> On Wed, 2018-04-11 at 23:39 +0800, Jia-Ju Bai wrote:
>>>> de4x5_hw_init() is never called in atomic context.
>>>>
>>>> de4x5_hw_init() is only called by de4x5_pci_probe(), which is only
>>>> set as ".probe" in struct pci_driver.
>>>>
>>>> Despite never getting called from atomic context, de4x5_hw_init()
>>>> calls mdelay() to busily wait. This is not necessary and can be
>>>> replaced with usleep_range() to  avoid busy waiting.
>>>>
>>>> This is found by a static analysis tool named DCNS written by myself.
>>>> And I also manually check it.
>>> Did you actually test this?  The usual reason for wanting m/udelay is
>>> that the timing must be exact.  The driver is filled with mdelay()s for
>>> this reason.  The one you've picked on is in the init path so it won't
>>> affect the runtime in any way.  I also don't think we have the hrtimer
>>> machinery for usleep_range() to work properly on parisc, so I don't
>>> think the replacement works.
>>>
>>> James
>>>
>>
>> Hello, James.
>> Thanks for your reply :)
>>
>> I agree that usleep_range() here will not much affect the real 
>> execution of this driver.
>>
>> But I think usleep_range() can more opportunity for other threads to 
>> use the CPU core to schedule during waiting.
>> That is why I detect mdelay() that can be replaced with msleep() or 
>> usleep_range().
>>
>
> James is right, You have added all usleep_range() during system 
> boot-up time.
> During boot-up system will run as single threaded. Where this change will
> not make much sense. System first priority is match the exact timing on
> each and every boot-up.
>

Hello, Arvind.
Thanks for your reply :)

I admit I am not familiar with this driver.
I did not know this driver is only loaded during system boot-up time,
I thought this driver can be loaded as a kernel module (like many 
drivers) after system booting.
After knowing this, I admit my patch is not proper, sorry...


Best wishes,
Jia-Ju Bai


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Hi Linus,

please pull a few last changes for this merge window for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.17-2

Changes:
- Fix panic when halting system via "shutdown -h now"
- Drop own coding in favour of generic CONFIG_COMPAT_BINFMT_ELF implementation
- Add FPE_CONDTRAP constant: last outstanding parisc-specific cleanup for Eric
  Biedermans siginfo patches
- move some functions to .init and some to .text.hot linker sections

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (4):
      parisc/signal: Add FPE_CONDTRAP for conditional trap handling
      parisc: Move cache flush functions into .text.hot section
      parisc: Switch to generic COMPAT_BINFMT_ELF
      parisc: Prevent panic at system halt

 arch/parisc/Kconfig                    |  1 +
 arch/parisc/include/asm/compat.h       |  6 +++
 arch/parisc/include/asm/elf.h          | 69 ++++++++++++------------
 arch/parisc/include/uapi/asm/siginfo.h |  7 ---
 arch/parisc/kernel/binfmt_elf32.c      | 98 ----------------------------------
 arch/parisc/kernel/cache.c             |  2 +-
 arch/parisc/kernel/pacache.S           |  9 ++--
 arch/parisc/kernel/process.c           | 13 ++---
 arch/parisc/kernel/traps.c             |  7 +--
 arch/x86/kernel/signal_compat.c        |  2 +-
 include/uapi/asm-generic/siginfo.h     |  3 +-
 11 files changed, 60 insertions(+), 157 deletions(-)
 delete mode 100644 arch/parisc/kernel/binfmt_elf32.c


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On Wed, Apr 11, 2018 at 09:09:53AM +0200, Helge Deller wrote:
> Drop our own compat binfmt implementation in
> arch/parisc/kernel/binfmt_elf32.c in favour of the generic
> implementation with CONFIG_COMPAT_BINFMT_ELF.
> 
> While cleaning up the dependencies, I noticed that ELF_PLATFORM was strangely
> defined: On a 32-bit kernel, it was defined to "PARISC", while when running in
> compat mode on a 64-bit kernel it was defined to "PARISC32". Since it doesn't
> seem to be used in glibc yet, it's now defined in both cases to "PARISC". In
> any case, it can be distinguished because it's either a 32-bit or a 64-bit ELF
> file.
> 
> Signed-off-by: Helge Deller <deller@gmx.de>

This patch results in:

Building parisc:a500_defconfig ... failed
--------------
Error log:
make[2]: *** No rule to make target 'arch/parisc/kernel/binfmt_elf32.o', needed
by 'arch/parisc/kernel/built-in.a'.  Stop.
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [arch/parisc/kernel] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [sub-make] Error 2
--------------
Building parisc:generic-64bit_defconfig ... failed
--------------
Error log:
make[2]: *** No rule to make target 'arch/parisc/kernel/binfmt_elf32.o', needed
by 'arch/parisc/kernel/built-in.a'.  Stop.

Indeed, arch/parisc/kernel/binfmt_elf32.o is still listed in Makefile
for 64-bit builds.

$ git grep binfmt_elf32.o arch/parisc/
arch/parisc/kernel/Makefile:obj-$(CONFIG_64BIT) += binfmt_elf32.o sys_parisc32.o signal32.o

Guenter


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* Guenter Roeck <linux@roeck-us.net>:
> On Wed, Apr 11, 2018 at 09:09:53AM +0200, Helge Deller wrote:
> > Drop our own compat binfmt implementation in
> > arch/parisc/kernel/binfmt_elf32.c in favour of the generic
> > implementation with CONFIG_COMPAT_BINFMT_ELF.
> > 
> > While cleaning up the dependencies, I noticed that ELF_PLATFORM was strangely
> > defined: On a 32-bit kernel, it was defined to "PARISC", while when running in
> > compat mode on a 64-bit kernel it was defined to "PARISC32". Since it doesn't
> > seem to be used in glibc yet, it's now defined in both cases to "PARISC". In
> > any case, it can be distinguished because it's either a 32-bit or a 64-bit ELF
> > file.
> > 
> > Signed-off-by: Helge Deller <deller@gmx.de>
> 
> This patch results in:
> 
> Building parisc:a500_defconfig ... failed
> --------------
> Error log:
> make[2]: *** No rule to make target 'arch/parisc/kernel/binfmt_elf32.o', needed
> by 'arch/parisc/kernel/built-in.a'.  Stop.
> make[2]: *** Waiting for unfinished jobs....
> make[1]: *** [arch/parisc/kernel] Error 2
> make[1]: *** Waiting for unfinished jobs....
> make: *** [sub-make] Error 2
> --------------
> Building parisc:generic-64bit_defconfig ... failed
> --------------
> Error log:
> make[2]: *** No rule to make target 'arch/parisc/kernel/binfmt_elf32.o', needed
> by 'arch/parisc/kernel/built-in.a'.  Stop.
> 
> Indeed, arch/parisc/kernel/binfmt_elf32.o is still listed in Makefile
> for 64-bit builds.
> 
> $ git grep binfmt_elf32.o arch/parisc/
> arch/parisc/kernel/Makefile:obj-$(CONFIG_64BIT) += binfmt_elf32.o sys_parisc32.o signal32.o

You are right.
I got fooled because I still had the binfmt_elf32.o object in my build
directory and so I didn't faced this build error. And even 0-day builds
didn't complained...  

Thanks for testing!

Patch below fixes it.

Helge
---

[PATCH] parisc: Fix missing binfmt_elf32.o build error

Commit 71d577db01a5 ("parisc: Switch to generic COMPAT_BINFMT_ELF")
removed the binfmt_elf32.c source file, but missed to drop the object
file from list of object files the Makefile too, which then results in a
build error.

Fixes: 71d577db01a5 ("parisc: Switch to generic COMPAT_BINFMT_ELF")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index eafd06a..e5de34d 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -23,7 +23,7 @@ obj-$(CONFIG_SMP)	+= smp.o
 obj-$(CONFIG_PA11)	+= pci-dma.o
 obj-$(CONFIG_PCI)	+= pci.o
 obj-$(CONFIG_MODULES)	+= module.o
-obj-$(CONFIG_64BIT)	+= binfmt_elf32.o sys_parisc32.o signal32.o
+obj-$(CONFIG_64BIT)	+= sys_parisc32.o signal32.o
 obj-$(CONFIG_STACKTRACE)+= stacktrace.o
 obj-$(CONFIG_AUDIT)	+= audit.o
 obj64-$(CONFIG_AUDIT)	+= compat_audit.o


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Subject: Re: [PATCH] parisc: Switch to generic COMPAT_BINFMT_ELF
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On Fri, Apr 13, 2018 at 09:54:37PM +0200, Helge Deller wrote:
> * Guenter Roeck <linux@roeck-us.net>:
> > On Wed, Apr 11, 2018 at 09:09:53AM +0200, Helge Deller wrote:
> > > Drop our own compat binfmt implementation in
> > > arch/parisc/kernel/binfmt_elf32.c in favour of the generic
> > > implementation with CONFIG_COMPAT_BINFMT_ELF.
> > > 
> > > While cleaning up the dependencies, I noticed that ELF_PLATFORM was strangely
> > > defined: On a 32-bit kernel, it was defined to "PARISC", while when running in
> > > compat mode on a 64-bit kernel it was defined to "PARISC32". Since it doesn't
> > > seem to be used in glibc yet, it's now defined in both cases to "PARISC". In
> > > any case, it can be distinguished because it's either a 32-bit or a 64-bit ELF
> > > file.
> > > 
> > > Signed-off-by: Helge Deller <deller@gmx.de>
> > 
> > This patch results in:
> > 
> > Building parisc:a500_defconfig ... failed
> > --------------
> > Error log:
> > make[2]: *** No rule to make target 'arch/parisc/kernel/binfmt_elf32.o', needed
> > by 'arch/parisc/kernel/built-in.a'.  Stop.
> > make[2]: *** Waiting for unfinished jobs....
> > make[1]: *** [arch/parisc/kernel] Error 2
> > make[1]: *** Waiting for unfinished jobs....
> > make: *** [sub-make] Error 2
> > --------------
> > Building parisc:generic-64bit_defconfig ... failed
> > --------------
> > Error log:
> > make[2]: *** No rule to make target 'arch/parisc/kernel/binfmt_elf32.o', needed
> > by 'arch/parisc/kernel/built-in.a'.  Stop.
> > 
> > Indeed, arch/parisc/kernel/binfmt_elf32.o is still listed in Makefile
> > for 64-bit builds.
> > 
> > $ git grep binfmt_elf32.o arch/parisc/
> > arch/parisc/kernel/Makefile:obj-$(CONFIG_64BIT) += binfmt_elf32.o sys_parisc32.o signal32.o
> 
> You are right.
> I got fooled because I still had the binfmt_elf32.o object in my build
> directory and so I didn't faced this build error. And even 0-day builds
> didn't complained...  
> 
> Thanks for testing!
> 
> Patch below fixes it.
> 
> Helge
> ---
> 
> [PATCH] parisc: Fix missing binfmt_elf32.o build error
> 
> Commit 71d577db01a5 ("parisc: Switch to generic COMPAT_BINFMT_ELF")
> removed the binfmt_elf32.c source file, but missed to drop the object
> file from list of object files the Makefile too, which then results in a
> build error.
> 
> Fixes: 71d577db01a5 ("parisc: Switch to generic COMPAT_BINFMT_ELF")
> Reported-by: Guenter Roeck <linux@roeck-us.net>
> Signed-off-by: Helge Deller <deller@gmx.de>

Tested-by: Guenter Roeck <linux@roeck-us.net>

> 
> 
> diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
> index eafd06a..e5de34d 100644
> --- a/arch/parisc/kernel/Makefile
> +++ b/arch/parisc/kernel/Makefile
> @@ -23,7 +23,7 @@ obj-$(CONFIG_SMP)	+= smp.o
>  obj-$(CONFIG_PA11)	+= pci-dma.o
>  obj-$(CONFIG_PCI)	+= pci.o
>  obj-$(CONFIG_MODULES)	+= module.o
> -obj-$(CONFIG_64BIT)	+= binfmt_elf32.o sys_parisc32.o signal32.o
> +obj-$(CONFIG_64BIT)	+= sys_parisc32.o signal32.o
>  obj-$(CONFIG_STACKTRACE)+= stacktrace.o
>  obj-$(CONFIG_AUDIT)	+= audit.o
>  obj64-$(CONFIG_AUDIT)	+= compat_audit.o


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To: Frank Scheiner <frank.scheiner@web.de>, Dennis Clarke <dc@oetec.com>
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Xref: news.gmane.org gmane.linux.debian.ports.hppa:7718 gmane.linux.ports.parisc:28488
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On 14.04.2018 20:13, Frank Scheiner wrote:
> On 04/14/2018 06:11 PM, Dennis Clarke wrote:
>> Really?  Well then .. let me see what I have that is ancient in the
>>   warehouse.
>>
>> How about PA-RISC?  I happen to have some superdomes kicking about but they require truely a ton of power to operate.
> 
> I assume hppa people in Debian (debian-hppa@l.d.o in CC) would appreciate testing on such gear.
> Not sure if those superdomes will work out of the box though. 

It really would be interesting if Linux can boot on such machines.
If they don't, I'm pretty sure that I can finish the firmware support in Linux to be able to boot in a cell. For that I'd need access to such a machines via ssh (to a x86 machine for cross-compiling/tftpboot provisioning) & a serial port to the superdome.

> I know from my own testing that the following "smaller" machines work with Debian GNU/Linux Sid for hppa:
> 
> * 712/80
> * c3700, c3750, J5600, rp2470
> * c8000, rp3440
> 
> Apart from the rp3440 - and maybe also the 712/80 which showed some issue with it's built-in NIC after netbooting the Linux kernel and the OS

What kind of problems?

> - all machines also work diskless, which could speed up testing for you and avoid a manual Debian installation - although this could still be interesting.

Helge



From - Thu Nov 08 21:41:17 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [GIT PULL] parisc trivial build fix for 4.17
Date: Mon, 16 Apr 2018 22:52:09 +0200
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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Hi Linus,

please pull a trivial one-line build fix for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.17-3

* Fix build error because of missing binfmt_elf32.o file which is still
  mentioned in the Makefile.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (1):
      parisc: Fix missing binfmt_elf32.o build error

 arch/parisc/kernel/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


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Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.msm,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc
Subject: [PATCH 1/2] parisc: use the asm-generic version for writeX()
Date: Mon, 16 Apr 2018 18:01:15 -0400
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Xref: news.gmane.org gmane.linux.kernel:2742590 gmane.linux.ports.arm.msm:33918 gmane.linux.ports.arm.kernel:643977 gmane.linux.ports.parisc:28490
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parisc architecture seems to be mapping writeX() and writeX_relaxed() APIs
to __raw_writeX() API.

__raw_writeX() API doesn't provide any kind of ordering guarantees.
commit 755bd04aaf4b ("io: define stronger ordering for the default writeX()
implementation") changed asm-generic implementation to use a more
conservative approach towards the writeX() API.

Drop the arch specific version and rely on the asm-generic version for
parisc since parisc version doesn't seem to do anything special with these
macros.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 arch/parisc/include/asm/io.h | 27 ---------------------------
 1 file changed, 27 deletions(-)

diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index afe493b..ef04864 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -194,41 +194,14 @@ static inline unsigned long long readq(const volatile void __iomem *addr)
 	return le64_to_cpu((__le64 __force) __raw_readq(addr));
 }
 
-static inline void writeb(unsigned char b, volatile void __iomem *addr)
-{
-	__raw_writeb(b, addr);
-}
-static inline void writew(unsigned short w, volatile void __iomem *addr)
-{
-	__raw_writew((__u16 __force) cpu_to_le16(w), addr);
-}
-static inline void writel(unsigned int l, volatile void __iomem *addr)
-{
-	__raw_writel((__u32 __force) cpu_to_le32(l), addr);
-}
-static inline void writeq(unsigned long long q, volatile void __iomem *addr)
-{
-	__raw_writeq((__u64 __force) cpu_to_le64(q), addr);
-}
-
 #define	readb	readb
 #define	readw	readw
 #define	readl	readl
 #define readq	readq
-#define writeb	writeb
-#define writew	writew
-#define writel	writel
-#define writeq	writeq
-
 #define readb_relaxed(addr)	readb(addr)
 #define readw_relaxed(addr)	readw(addr)
 #define readl_relaxed(addr)	readl(addr)
 #define readq_relaxed(addr)	readq(addr)
-#define writeb_relaxed(b, addr)	writeb(b, addr)
-#define writew_relaxed(w, addr)	writew(w, addr)
-#define writel_relaxed(l, addr)	writel(l, addr)
-#define writeq_relaxed(q, addr)	writeq(q, addr)
-
 #define mmiowb() do { } while (0)
 
 void memset_io(volatile void __iomem *addr, unsigned char val, int count);
-- 
2.7.4



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        Kate Stewart <kstewart@linuxfoundation.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org
To: linux-parisc@linux-mips.org, arnd@arndb.de, timur@codeaurora.org,
        sulrich@codeaurora.org
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Xref: news.gmane.org gmane.linux.kernel:2742591 gmane.linux.ports.arm.msm:33919 gmane.linux.ports.arm.kernel:643978 gmane.linux.ports.parisc:28491
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2742591>

parisc architecture seems to be mapping readX() and readX_relaxed() APIs
to __raw_readX() API.

__raw_readX() API doesn't provide any kind of ordering guarantees.
commit 032d59e1cde9 ("io: define stronger ordering for the default readX()
implementation") changed asm-generic implementation to use a more
conservative approach towards the readX() API.

Drop the arch specific version and rely on the asm-generic version for
parisc since it doesn't seem to do anything special with these macros.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 arch/parisc/include/asm/io.h | 25 -------------------------
 1 file changed, 25 deletions(-)

diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index ef04864..7e60642 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -177,31 +177,6 @@ static inline void __raw_writeq(unsigned long long b, volatile void __iomem *add
 	*(volatile unsigned long long __force *) addr = b;
 }
 
-static inline unsigned char readb(const volatile void __iomem *addr)
-{
-	return __raw_readb(addr);
-}
-static inline unsigned short readw(const volatile void __iomem *addr)
-{
-	return le16_to_cpu((__le16 __force) __raw_readw(addr));
-}
-static inline unsigned int readl(const volatile void __iomem *addr)
-{
-	return le32_to_cpu((__le32 __force) __raw_readl(addr));
-}
-static inline unsigned long long readq(const volatile void __iomem *addr)
-{
-	return le64_to_cpu((__le64 __force) __raw_readq(addr));
-}
-
-#define	readb	readb
-#define	readw	readw
-#define	readl	readl
-#define readq	readq
-#define readb_relaxed(addr)	readb(addr)
-#define readw_relaxed(addr)	readw(addr)
-#define readl_relaxed(addr)	readl(addr)
-#define readq_relaxed(addr)	readq(addr)
 #define mmiowb() do { } while (0)
 
 void memset_io(volatile void __iomem *addr, unsigned char val, int count);
-- 
2.7.4



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Subject: Re: [PATCH 1/2] parisc: use the asm-generic version for writeX()
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Cc: linux-parisc@vger.kernel.org,
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From: Sinan Kaya <okaya@codeaurora.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.msm,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc
Subject: Re: [PATCH 1/2] parisc: use the asm-generic version for writeX()
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On 4/16/2018 7:09 PM, John David Anglin wrote:
> On 2018-04-16 6:01 PM, Sinan Kaya wrote:
>> parisc architecture seems to be mapping writeX() and writeX_relaxed() APIs
>> to __raw_writeX() API.
>>
>> __raw_writeX() API doesn't provide any kind of ordering guarantees.
>> commit 755bd04aaf4b ("io: define stronger ordering for the default writeX()
>> implementation") changed asm-generic implementation to use a more
>> conservative approach towards the writeX() API.
>>
>> Drop the arch specific version and rely on the asm-generic version for
>> parisc since parisc version doesn't seem to do anything special with these
>> macros.
>   HOSTLD  scripts/mod/modpost
> In file included from ./arch/parisc/include/asm/hardirq.h:13:0,
>                  from ./include/linux/hardirq.h:9,
>                  from arch/parisc/kernel/asm-offsets.c:34:
> ./include/linux/irq.h: In function 'irq_reg_writel':
> ./include/linux/irq.h:1114:3: error: implicit declaration of function 'writel' [-Werror=implicit-function-declaration]
>    writel(val, gc->reg_base + reg_offset);
>    ^~~~~~
> ./include/linux/irq.h: In function 'irq_reg_readl':
> ./include/linux/irq.h:1123:10: error: implicit declaration of function 'readl' [-Werror=implicit-function-declaration]
>    return readl(gc->reg_base + reg_offset);
>           ^~~~~
> cc1: some warnings being treated as errors
> make[1]: *** [Kbuild:58: arch/parisc/kernel/asm-offsets.s] Error 1
> 
> Dave
> 

Thanks for testing. Can you add this on top and see if it helps?

--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -259,6 +259,7 @@ extern void outsl (unsigned long port, const void *src, unsigned long count);
  * value for either 32 or 64 bit mode */
 #define F_EXTEND(x) ((unsigned long)((x) | (0xffffffff00000000ULL)))
 
+#include <asm-generic/io.h>
 #include <asm-generic/iomap.h>


-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.


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On 2018-04-16 7:15 PM, Sinan Kaya wrote:
> Thanks for testing. Can you add this on top and see if it helps?
>
> --- a/arch/parisc/include/asm/io.h
> +++ b/arch/parisc/include/asm/io.h
> @@ -259,6 +259,7 @@ extern void outsl (unsigned long port, const void *src, unsigned long count);
>    * value for either 32 or 64 bit mode */
>   #define F_EXTEND(x) ((unsigned long)((x) | (0xffffffff00000000ULL)))
>   
> +#include <asm-generic/io.h>
>   #include <asm-generic/iomap.h>
Still lots of problems.

Dave

-- 
John David Anglin  dave.anglin@bell.net


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--------------2B4D016953CBDDA819BFD479--


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X-Mozilla-Keys:                                                                                 
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Subject: Re: [PATCH 1/2] parisc: use the asm-generic version for writeX()
Date: Mon, 16 Apr 2018 19:44:38 -0400
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On 4/16/2018 7:37 PM, John David Anglin wrote:
>>   +#include <asm-generic/io.h>
>>   #include <asm-generic/iomap.h>
> Still lots of problems.
> 
> Dave
> 
> -- 
> John David Anglin  dave.anglin@bell.net
> 
> 
> io.log
> 
> 
>   CC      arch/parisc/kernel/asm-offsets.s
> In file included from ./arch/parisc/include/asm/io.h:262:0,
>                  from ./include/linux/io.h:25,
>                  from ./include/linux/irq.h:25,
>                  from ./arch/parisc/include/asm/hardirq.h:13,
>                  from ./include/linux/hardirq.h:9,
>                  from arch/parisc/kernel/asm-offsets.c:34:
> ./include/asm-generic/io.h:37:21: error: redefinition of '__raw_readb'
>  #define __raw_readb __raw_readb
>                      ^

This one is easy to fix:

https://elixir.bootlin.com/linux/latest/source/arch/parisc/include/asm/io.h#L146

Remove 146..179.

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.


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On 4/16/2018 7:44 PM, Sinan Kaya wrote:
>> John David Anglin  dave.anglin@bell.net
>>
>>
>> io.log
>>
>>
>>   CC      arch/parisc/kernel/asm-offsets.s
>> In file included from ./arch/parisc/include/asm/io.h:262:0,
>>                  from ./include/linux/io.h:25,
>>                  from ./include/linux/irq.h:25,
>>                  from ./arch/parisc/include/asm/hardirq.h:13,
>>                  from ./include/linux/hardirq.h:9,
>>                  from arch/parisc/kernel/asm-offsets.c:34:
>> ./include/asm-generic/io.h:37:21: error: redefinition of '__raw_readb'
>>  #define __raw_readb __raw_readb
>>                      ^
> This one is easy to fix:
> 
> https://elixir.bootlin.com/linux/latest/source/arch/parisc/include/asm/io.h#L146
> 
> Remove 146..179.

I'll try to get a hold of a cross compiler and re-test. The above is a hack.
I need to do a better job on this.

Thanks for the help. I'll post V2 when it is ready.

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.


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mentioned last week :

I will look into what the power issue are.  The serial cable setup is 
trivial but the power isn't.

I'll let you know.


Dennis

ps: three of these standing around : https://i.imgur.com/AcT2EQ2.jpg

----- from debian-hppa@lists.debian.org Sun, 15 Apr 2018 10:34:51 +0200

 > I assume hppa people in Debian (debian-hppa@l.d.o in CC) would 
appreciate testing on such gear.
 > Not sure if those superdomes will work out of the box though.

It really would be interesting if Linux can boot on such machines.

If they don't, I'm pretty sure that I can finish the firmware support in 
Linux to be able to boot in a cell. For that I'd need access to such a
machines via ssh (to a x86 machine for cross-compiling/tftpboot
provisioning) & a serial port to the superdome.

 > I know from my own testing that the following "smaller" machines work 
with Debian GNU/Linux Sid for hppa:
 >
 > * 712/80
 > * c3700, c3750, J5600, rp2470
 > * c8000, rp3440
 >
 > Apart from the rp3440 - and maybe also the 712/80 which showed some 
issue with it's built-in NIC after netbooting the Linux kernel and the OS

What kind of problems?

 > - all machines also work diskless, which could speed up testing for 
you and avoid a manual Debian installation - although this could still 
be interesting.

Helge



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parisc architecture seems to be mapping writeX() and writeX_relaxed() APIs
to __raw_writeX() API.

__raw_writeX() API doesn't provide any kind of ordering guarantees.
commit 755bd04aaf4b ("io: define stronger ordering for the default writeX()
implementation") changed asm-generic implementation to use a more
conservative approach towards the writeX() API.

Place a barrier() before the register write so that compiler doesn't
optimize across the regiter operation.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 arch/parisc/include/asm/io.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index afe493b..2ec6405 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -196,18 +196,22 @@ static inline unsigned long long readq(const volatile void __iomem *addr)
 
 static inline void writeb(unsigned char b, volatile void __iomem *addr)
 {
+	barrier();
 	__raw_writeb(b, addr);
 }
 static inline void writew(unsigned short w, volatile void __iomem *addr)
 {
+	barrier();
 	__raw_writew((__u16 __force) cpu_to_le16(w), addr);
 }
 static inline void writel(unsigned int l, volatile void __iomem *addr)
 {
+	barrier();
 	__raw_writel((__u32 __force) cpu_to_le32(l), addr);
 }
 static inline void writeq(unsigned long long q, volatile void __iomem *addr)
 {
+	barrier();
 	__raw_writeq((__u64 __force) cpu_to_le64(q), addr);
 }
 
-- 
2.7.4



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Xref: news.gmane.org gmane.linux.kernel:2742765 gmane.linux.ports.parisc:28499 gmane.linux.ports.arm.msm:33938 gmane.linux.ports.arm.kernel:644014
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parisc architecture seems to be mapping readX() and readX_relaxed() APIs
to __raw_readX() API.

__raw_readX() API doesn't provide any kind of ordering guarantees.
commit 032d59e1cde9 ("io: define stronger ordering for the default readX()
implementation") changed asm-generic implementation to use a more
conservative approach towards the readX() API.

Place a barrier() after the register read so that compiler doesn't
optimize across the regiter operation.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 arch/parisc/include/asm/io.h | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 2ec6405..e04c4ef 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -179,19 +179,34 @@ static inline void __raw_writeq(unsigned long long b, volatile void __iomem *add
 
 static inline unsigned char readb(const volatile void __iomem *addr)
 {
-	return __raw_readb(addr);
+	unsigned char ret;
+
+	ret = __raw_readb(addr);
+	barrier();
+	return ret;
 }
 static inline unsigned short readw(const volatile void __iomem *addr)
 {
-	return le16_to_cpu((__le16 __force) __raw_readw(addr));
+	unsigned short ret;
+
+	ret = le16_to_cpu((__le16 __force) __raw_readw(addr));
+	barrier();
+	return ret;
 }
 static inline unsigned int readl(const volatile void __iomem *addr)
 {
-	return le32_to_cpu((__le32 __force) __raw_readl(addr));
+	unsigned int ret;
+	ret = le32_to_cpu((__le32 __force) __raw_readl(addr));
+	barrier();
+	return ret;
 }
 static inline unsigned long long readq(const volatile void __iomem *addr)
 {
-	return le64_to_cpu((__le64 __force) __raw_readq(addr));
+	unsigned long long ret;
+
+	ret = le64_to_cpu((__le64 __force) __raw_readq(addr));
+	barrier();
+	return ret;
 }
 
 static inline void writeb(unsigned char b, volatile void __iomem *addr)
-- 
2.7.4



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On 4/16/2018 7:48 PM, Sinan Kaya wrote:
> On 4/16/2018 7:44 PM, Sinan Kaya wrote:
>>> John David Anglin  dave.anglin@bell.net
>>>
>>>
>>> io.log
>>>
>>>
>>>   CC      arch/parisc/kernel/asm-offsets.s
>>> In file included from ./arch/parisc/include/asm/io.h:262:0,
>>>                  from ./include/linux/io.h:25,
>>>                  from ./include/linux/irq.h:25,
>>>                  from ./arch/parisc/include/asm/hardirq.h:13,
>>>                  from ./include/linux/hardirq.h:9,
>>>                  from arch/parisc/kernel/asm-offsets.c:34:
>>> ./include/asm-generic/io.h:37:21: error: redefinition of '__raw_readb'
>>>  #define __raw_readb __raw_readb
>>>                      ^
>> This one is easy to fix:
>>
>> https://elixir.bootlin.com/linux/latest/source/arch/parisc/include/asm/io.h#L146
>>
>> Remove 146..179.
> 
> I'll try to get a hold of a cross compiler and re-test. The above is a hack.
> I need to do a better job on this.
> 
> Thanks for the help. I'll post V2 when it is ready.
> 

Converting this to asm-generic turned out to be a much bigger task. I placed
compiler barriers instead to existing version and posted as follows:

[PATCH v2 1/2] parisc: define stronger ordering for the default writeX()
[PATCH v2 2/2] parisc: define stronger ordering for the default readX()

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.


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--wRRV7LY7NUeQGEoC
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Hi Sinan,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on hp-parisc/for-next]
[also build test ERROR on v4.17-rc1 next-20180416]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Sinan-Kaya/parisc-use-the-asm-generic-version-for-writeX/20180417-103119
base:   https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git for-next
config: parisc-c3000_defconfig (attached as .config)
compiler: hppa-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=parisc 

All errors (new ones prefixed by >>):

   In file included from arch/parisc/include/asm/hardirq.h:13:0,
                    from include/linux/hardirq.h:9,
                    from arch/parisc/kernel/asm-offsets.c:34:
   include/linux/irq.h: In function 'irq_reg_writel':
>> include/linux/irq.h:1126:3: error: implicit declaration of function 'writel'; did you mean 'iowrite8'? [-Werror=implicit-function-declaration]
      writel(val, gc->reg_base + reg_offset);
      ^~~~~~
      iowrite8
   cc1: some warnings being treated as errors
   make[2]: *** [arch/parisc/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

vim +1126 include/linux/irq.h

7d828062 Thomas Gleixner 2011-04-03  1109  
ebf9ff75 Boris Brezillon 2016-09-13  1110  /*
ebf9ff75 Boris Brezillon 2016-09-13  1111   * The irqsave variants are for usage in non interrupt code. Do not use
ebf9ff75 Boris Brezillon 2016-09-13  1112   * them in irq_chip callbacks. Use irq_gc_lock() instead.
ebf9ff75 Boris Brezillon 2016-09-13  1113   */
ebf9ff75 Boris Brezillon 2016-09-13  1114  #define irq_gc_lock_irqsave(gc, flags)	\
ebf9ff75 Boris Brezillon 2016-09-13  1115  	raw_spin_lock_irqsave(&(gc)->lock, flags)
ebf9ff75 Boris Brezillon 2016-09-13  1116  
ebf9ff75 Boris Brezillon 2016-09-13  1117  #define irq_gc_unlock_irqrestore(gc, flags)	\
ebf9ff75 Boris Brezillon 2016-09-13  1118  	raw_spin_unlock_irqrestore(&(gc)->lock, flags)
ebf9ff75 Boris Brezillon 2016-09-13  1119  
332fd7c4 Kevin Cernekee  2014-11-06  1120  static inline void irq_reg_writel(struct irq_chip_generic *gc,
332fd7c4 Kevin Cernekee  2014-11-06  1121  				  u32 val, int reg_offset)
332fd7c4 Kevin Cernekee  2014-11-06  1122  {
2b280376 Kevin Cernekee  2014-11-06  1123  	if (gc->reg_writel)
2b280376 Kevin Cernekee  2014-11-06  1124  		gc->reg_writel(val, gc->reg_base + reg_offset);
2b280376 Kevin Cernekee  2014-11-06  1125  	else
332fd7c4 Kevin Cernekee  2014-11-06 @1126  		writel(val, gc->reg_base + reg_offset);
332fd7c4 Kevin Cernekee  2014-11-06  1127  }
332fd7c4 Kevin Cernekee  2014-11-06  1128  

:::::: The code at line 1126 was first introduced by commit
:::::: 332fd7c4fef5f3b166e93decb07fd69eb24f7998 genirq: Generic chip: Change irq_reg_{readl,writel} arguments

:::::: TO: Kevin Cernekee <cernekee@gmail.com>
:::::: CC: Jason Cooper <jason@lakedaemon.net>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Subject: Re: [PATCH 2/2] parisc: use the asm-generic version for readX()
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Hi Sinan,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on hp-parisc/for-next]
[also build test ERROR on v4.17-rc1 next-20180416]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Sinan-Kaya/parisc-use-the-asm-generic-version-for-writeX/20180417-103119
base:   https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git for-next
config: parisc-c3000_defconfig (attached as .config)
compiler: hppa-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=parisc 

All errors (new ones prefixed by >>):

   In file included from arch/parisc/include/asm/hardirq.h:13:0,
                    from include/linux/hardirq.h:9,
                    from arch/parisc/kernel/asm-offsets.c:34:
   include/linux/irq.h: In function 'irq_reg_writel':
   include/linux/irq.h:1126:3: error: implicit declaration of function 'writel'; did you mean 'iowrite8'? [-Werror=implicit-function-declaration]
      writel(val, gc->reg_base + reg_offset);
      ^~~~~~
      iowrite8
   include/linux/irq.h: In function 'irq_reg_readl':
>> include/linux/irq.h:1135:10: error: implicit declaration of function 'readl'; did you mean 'ioread8'? [-Werror=implicit-function-declaration]
      return readl(gc->reg_base + reg_offset);
             ^~~~~
             ioread8
   cc1: some warnings being treated as errors
   make[2]: *** [arch/parisc/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

vim +1135 include/linux/irq.h

7d828062 Thomas Gleixner 2011-04-03  1109  
ebf9ff75 Boris Brezillon 2016-09-13  1110  /*
ebf9ff75 Boris Brezillon 2016-09-13  1111   * The irqsave variants are for usage in non interrupt code. Do not use
ebf9ff75 Boris Brezillon 2016-09-13  1112   * them in irq_chip callbacks. Use irq_gc_lock() instead.
ebf9ff75 Boris Brezillon 2016-09-13  1113   */
ebf9ff75 Boris Brezillon 2016-09-13  1114  #define irq_gc_lock_irqsave(gc, flags)	\
ebf9ff75 Boris Brezillon 2016-09-13  1115  	raw_spin_lock_irqsave(&(gc)->lock, flags)
ebf9ff75 Boris Brezillon 2016-09-13  1116  
ebf9ff75 Boris Brezillon 2016-09-13  1117  #define irq_gc_unlock_irqrestore(gc, flags)	\
ebf9ff75 Boris Brezillon 2016-09-13  1118  	raw_spin_unlock_irqrestore(&(gc)->lock, flags)
ebf9ff75 Boris Brezillon 2016-09-13  1119  
332fd7c4 Kevin Cernekee  2014-11-06  1120  static inline void irq_reg_writel(struct irq_chip_generic *gc,
332fd7c4 Kevin Cernekee  2014-11-06  1121  				  u32 val, int reg_offset)
332fd7c4 Kevin Cernekee  2014-11-06  1122  {
2b280376 Kevin Cernekee  2014-11-06  1123  	if (gc->reg_writel)
2b280376 Kevin Cernekee  2014-11-06  1124  		gc->reg_writel(val, gc->reg_base + reg_offset);
2b280376 Kevin Cernekee  2014-11-06  1125  	else
332fd7c4 Kevin Cernekee  2014-11-06 @1126  		writel(val, gc->reg_base + reg_offset);
332fd7c4 Kevin Cernekee  2014-11-06  1127  }
332fd7c4 Kevin Cernekee  2014-11-06  1128  
332fd7c4 Kevin Cernekee  2014-11-06  1129  static inline u32 irq_reg_readl(struct irq_chip_generic *gc,
332fd7c4 Kevin Cernekee  2014-11-06  1130  				int reg_offset)
332fd7c4 Kevin Cernekee  2014-11-06  1131  {
2b280376 Kevin Cernekee  2014-11-06  1132  	if (gc->reg_readl)
2b280376 Kevin Cernekee  2014-11-06  1133  		return gc->reg_readl(gc->reg_base + reg_offset);
2b280376 Kevin Cernekee  2014-11-06  1134  	else
332fd7c4 Kevin Cernekee  2014-11-06 @1135  		return readl(gc->reg_base + reg_offset);
332fd7c4 Kevin Cernekee  2014-11-06  1136  }
332fd7c4 Kevin Cernekee  2014-11-06  1137  

:::::: The code at line 1135 was first introduced by commit
:::::: 332fd7c4fef5f3b166e93decb07fd69eb24f7998 genirq: Generic chip: Change irq_reg_{readl,writel} arguments

:::::: TO: Kevin Cernekee <cernekee@gmail.com>
:::::: CC: Jason Cooper <jason@lakedaemon.net>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.arm.msm,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH v2 2/2] parisc: define stronger ordering for the default
 readX()
Date: Tue, 17 Apr 2018 10:37:32 +0100
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To: Sinan Kaya <okaya@codeaurora.org>, linux-parisc@vger.kernel.org,
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On Tue, 2018-04-17 at 00:08 -0400, Sinan Kaya wrote:
> parisc architecture seems to be mapping readX() and readX_relaxed()
> APIs
> to __raw_readX() API.
> 
> __raw_readX() API doesn't provide any kind of ordering guarantees.
> commit 032d59e1cde9 ("io: define stronger ordering for the default
> readX()
> implementation") changed asm-generic implementation to use a more
> conservative approach towards the readX() API.

I don't follow your logic here.  function calls (even inline ones) are
sequence points and the compiler guarantees volatile variables are
stable before sequencing, so these two rules strictly compile order the
raw_read/write because the address is volatile.

> Place a barrier() after the register read so that compiler doesn't
> optimize across the regiter operation.

barrier() provides exactly the same guarantees as the sequence
point/volatile already above, so it seems to be completely unnecessary.

Perhaps if you gave an example of the actual problem you're trying to
fix we could assess if it affects parisc.

James


> Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
> ---
>  arch/parisc/include/asm/io.h | 23 +++++++++++++++++++----
>  1 file changed, 19 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/parisc/include/asm/io.h
> b/arch/parisc/include/asm/io.h
> index 2ec6405..e04c4ef 100644
> --- a/arch/parisc/include/asm/io.h
> +++ b/arch/parisc/include/asm/io.h
> @@ -179,19 +179,34 @@ static inline void __raw_writeq(unsigned long
> long b, volatile void __iomem *add
>  
>  static inline unsigned char readb(const volatile void __iomem *addr)
>  {
> -	return __raw_readb(addr);
> +	unsigned char ret;
> +
> +	ret = __raw_readb(addr);
> +	barrier();
> +	return ret;
>  }
>  static inline unsigned short readw(const volatile void __iomem
> *addr)
>  {
> -	return le16_to_cpu((__le16 __force) __raw_readw(addr));
> +	unsigned short ret;
> +
> +	ret = le16_to_cpu((__le16 __force) __raw_readw(addr));
> +	barrier();
> +	return ret;
>  }
>  static inline unsigned int readl(const volatile void __iomem *addr)
>  {
> -	return le32_to_cpu((__le32 __force) __raw_readl(addr));
> +	unsigned int ret;
> +	ret = le32_to_cpu((__le32 __force) __raw_readl(addr));
> +	barrier();
> +	return ret;
>  }
>  static inline unsigned long long readq(const volatile void __iomem
> *addr)
>  {
> -	return le64_to_cpu((__le64 __force) __raw_readq(addr));
> +	unsigned long long ret;
> +
> +	ret = le64_to_cpu((__le64 __force) __raw_readq(addr));
> +	barrier();
> +	return ret;
>  }
>  
>  static inline void writeb(unsigned char b, volatile void __iomem
> *addr)



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Subject: Re: [PATCH v2 2/2] parisc: define stronger ordering for the default
 readX()
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Hi James,

> 
> Perhaps if you gave an example of the actual problem you're trying to
> fix we could assess if it affects parisc.

Let me clarify myself here. Maybe, there is a better solution.

		/* assign ownership */
		desc->status = DEVICE_OWN;

		/* notify device of new descriptors */
		writel(DESC_NOTIFY, doorbell);

The difference between writel() and writel_relax() is writel() guarantees
memory transactions to be flushed to the device before the register write.
writel_relaxed() does not provide any guarantees about the memory and IO
operations.

Similarly, readl() provides following code to observe the DMA result while
readl_relaxed() does not provide this guarantee.

Ideally, you want to embed rmb() and wmb() into the writel() and readl()
to provide this guarantee.

PA-RISC doesn't seem to support neither one of the barrier types. If you are
familiar with the architecture, maybe you could guide us here.

Is __raw_writeX() enough to provide this guarantee for this architecture?

Sinan

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.


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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.arm.msm,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH v2 2/2] parisc: define stronger ordering for the default
 readX()
Date: Tue, 17 Apr 2018 16:55:08 +0100
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To: Sinan Kaya <okaya@codeaurora.org>, linux-parisc@vger.kernel.org,
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On Tue, 2018-04-17 at 10:13 -0400, Sinan Kaya wrote:
> Hi James,
> 
> > 
> > Perhaps if you gave an example of the actual problem you're trying
> > to fix we could assess if it affects parisc.
> 
> Let me clarify myself here. Maybe, there is a better solution.
> 
> 		/* assign ownership */
> 		desc->status = DEVICE_OWN;
> 
> 		/* notify device of new descriptors */
> 		writel(DESC_NOTIFY, doorbell);
> 
> The difference between writel() and writel_relax() is writel()
> guarantees memory transactions to be flushed to the device before the
> register write.

Um, no it doesn't, at least not in PCI.  It guarantees the write will
be issued by the memory system, but it may still be cached (called
posting) in the PCI bridge.  So it doesn't guarantee the write reaches
the device by the time it returns.

>  writel_relaxed() does not provide any guarantees about the memory
> and IO operations.
> 
> Similarly, readl() provides following code to observe the DMA result
> while readl_relaxed() does not provide this guarantee.

Right, the relaxed operator provides no guarantee of ordering between
the memory and IO domains.  However, it's only really a problem on
multiple memory controller systems (i.e. NUMA).  Parisc (except
superdome, which we don't support) doesn't have this problem.  We also
turn of CPU stream reordering, so compile order is retire order on our
CPUs (which makes life a lot simpler).

> Ideally, you want to embed rmb() and wmb() into the writel() and
> readl() to provide this guarantee.
>  
> PA-RISC doesn't seem to support neither one of the barrier types. If
> you are familiar with the architecture, maybe you could guide us
> here.
> 
> Is __raw_writeX() enough to provide this guarantee for this
> architecture?

Well, with the volatile address it is.

The current implementations provide the expected semantics: namely the
position in the instruction stream is compile (retire) ordered and
issued from memory once retired.  We still do have the write posting
problem, but you'll find additional reads in the drivers to flush the
posted writes, so I don't actually believe we need anything changing.

James



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Subject: Re: [PATCH v2 2/2] parisc: define stronger ordering for the default
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On 4/17/2018 11:55 AM, James Bottomley wrote:
> On Tue, 2018-04-17 at 10:13 -0400, Sinan Kaya wrote:
>> Hi James,
>>
>>>
>>> Perhaps if you gave an example of the actual problem you're trying
>>> to fix we could assess if it affects parisc.
>>
>> Let me clarify myself here. Maybe, there is a better solution.
>>
>> 		/* assign ownership */
>> 		desc->status = DEVICE_OWN;
>>
>> 		/* notify device of new descriptors */
>> 		writel(DESC_NOTIFY, doorbell);
>>
>> The difference between writel() and writel_relax() is writel()
>> guarantees memory transactions to be flushed to the device before the
>> register write.
> 
> Um, no it doesn't, at least not in PCI.  It guarantees the write will
> be issued by the memory system, but it may still be cached (called
> posting) in the PCI bridge.  So it doesn't guarantee the write reaches
> the device by the time it returns.


The correct terminology here would be to use observability. Yes, it can be
cached in whatever part of the system for some amount of time as long as
PCI device sees it in the correct order.

Let's do this exercise. 
1. OS writes to memory for some descriptor update
2. OS writes to the device via writel to hit a doorbell
3. Device comes and fetches the memory contents for the descriptor

writel() of PA-RISC needs to ensure that 3. cannot bypass 1. This is typically
done by a write barrier embedded into the writel() on relaxed architectures.

> 
>>  writel_relaxed() does not provide any guarantees about the memory
>> and IO operations.
>>
>> Similarly, readl() provides following code to observe the DMA result
>> while readl_relaxed() does not provide this guarantee.
> 
> Right, the relaxed operator provides no guarantee of ordering between
> the memory and IO domains.  However, it's only really a problem on
> multiple memory controller systems (i.e. NUMA).  Parisc (except
> superdome, which we don't support) doesn't have this problem.  We also
> turn of CPU stream reordering, so compile order is retire order on our
> CPUs (which makes life a lot simpler).

Good to know.

> 
>> Ideally, you want to embed rmb() and wmb() into the writel() and
>> readl() to provide this guarantee.
>>  
>> PA-RISC doesn't seem to support neither one of the barrier types. If
>> you are familiar with the architecture, maybe you could guide us
>> here.
>>
>> Is __raw_writeX() enough to provide this guarantee for this
>> architecture?
> 
> Well, with the volatile address it is.
> 
> The current implementations provide the expected semantics: namely the
> position in the instruction stream is compile (retire) ordered and
> issued from memory once retired.  We still do have the write posting
> problem, but you'll find additional reads in the drivers to flush the
> posted writes, so I don't actually believe we need anything changing.
> 

OK. I'll withdraw my patch. I'm just trying to ensure that all architectures
support writel() semantics. There is an attempt to remove unnecessary
write barriers from the drivers directory between the descriptor update and
writel. 

Just checking that PA-RISC won't break after this.

> James
> 
> 


-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.


From - Thu Nov 08 21:41:19 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.arm.msm,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH v2 2/2] parisc: define stronger ordering for the default
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On 2018-04-17 2:28 PM, Sinan Kaya wrote:
> The correct terminology here would be to use observability. Yes, it can be
> cached in whatever part of the system for some amount of time as long as
> PCI device sees it in the correct order.
>
> Let's do this exercise.
> 1. OS writes to memory for some descriptor update
> 2. OS writes to the device via writel to hit a doorbell
> 3. Device comes and fetches the memory contents for the descriptor
>
> writel() of PA-RISC needs to ensure that 3. cannot bypass 1. This is typically
> done by a write barrier embedded into the writel() on relaxed architectures.
The sequence point after the argument evaluation for writel prevents the 
compiler from reordering
1 and 2.  Accesses to I/O space are strongly ordered on PA-RISC, so 1 
must occur before 2 (Page G-1
of the PA-RISC 2.0 Architecture).  Thus, the current code is okay.

Dave

-- 
John David Anglin  dave.anglin@bell.net



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To: John David Anglin <dave.anglin@bell.net>,
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        linux-parisc@vger.kernel.org, arnd@arndb.de, timur@codeaurora.org,
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On 4/17/2018 6:53 PM, John David Anglin wrote:
> On 2018-04-17 2:28 PM, Sinan Kaya wrote:
>> The correct terminology here would be to use observability. Yes, it can be
>> cached in whatever part of the system for some amount of time as long as
>> PCI device sees it in the correct order.
>>
>> Let's do this exercise.
>> 1. OS writes to memory for some descriptor update
>> 2. OS writes to the device via writel to hit a doorbell
>> 3. Device comes and fetches the memory contents for the descriptor
>>
>> writel() of PA-RISC needs to ensure that 3. cannot bypass 1. This is typically
>> done by a write barrier embedded into the writel() on relaxed architectures.
> The sequence point after the argument evaluation for writel prevents the compiler from reordering
> 1 and 2.  Accesses to I/O space are strongly ordered on PA-RISC, so 1 must occur before 2 (Page G-1
> of the PA-RISC 2.0 Architecture).  Thus, the current code is okay.
> 

Many thanks for the clarification.

> Dave
> 


-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.


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From: Baolin Wang <baolin.wang@linaro.org>
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Subject: [PATCH] parisc: time: Convert read_persistent_clock() to read_persistent_clock64()
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The read_persistent_clock() uses a timespec, which is not year 2038 safe
on 32bit systems. On parisc architecture, we have implemented generic RTC
drivers that can be used to compensate the system suspend time, but the
RTC time can not represent the nanosecond resolution, so this patch just
converts to read_persistent_clock64() with timespec64.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
---
 arch/parisc/kernel/time.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index c383040..a1e772f 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -205,7 +205,7 @@ static int __init rtc_init(void)
 device_initcall(rtc_init);
 #endif
 
-void read_persistent_clock(struct timespec *ts)
+void read_persistent_clock64(struct timespec64 *ts)
 {
 	static struct pdc_tod tod_data;
 	if (pdc_tod_read(&tod_data) == 0) {
-- 
1.7.9.5



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Hi,

and sorry for the delay, I was a little short of spare time this week. :-/

On 04/15/2018 10:34 AM, Helge Deller wrote:
> On 14.04.2018 20:13, Frank Scheiner wrote:
>> I know from my own testing that the following "smaller" machines work with Debian GNU/Linux Sid for hppa:
>>
>> * 712/80
>> * c3700, c3750, J5600, rp2470
>> * c8000, rp3440
>>
>> Apart from the rp3440 - and maybe also the 712/80 which showed some issue with it's built-in NIC after netbooting the Linux kernel and the OS
> 
> What kind of problems?

Unfortunately I seem to not have made any notes for the issue with the 
712/80, so I retried with the assumed issue creating configuration 
earlier this week:

This configuration was using a Debian Linux kernel 4.9.25-1 
(4.9.0-3-parisc from 2017-05-02). And when netbooting it, shortly after 
login the machine seems to loose contact to the NFS server:

```
[...]
[  OK  ] Started Serial Getty on ttyS0.
[  OK  ] Started Getty on tty1.
[  OK  ] Reached target Login Prompts.

Debian GNU/Linux buster/sid hp-712 ttyS0

hp-712 login: root
Password:
Last login: Thu Sep 18 11:30:50 CET 1902 from 172.16.1.1 on pts/0
Linux hp-712 4.9.0-3-parisc #1 Debian 4.9.25-1 (2017-05-02) parisc

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.

[  232.973913] nfs: server 172.16.0.2 not responding, still trying
[  233.094265] nfs: server 172.16.0.2 not responding, still trying
[  233.205127] nfs: server 172.16.0.2 not responding, still trying
[  233.568429] nfs: server 172.16.0.2 not responding, still trying
[  233.692383] nfs: server 172.16.0.2 not responding, still trying
[  233.808818] nfs: server 172.16.0.2 not responding, still trying
[...]
[  235.179253] nfs: server 172.16.0.2 OK
[  235.251896] nfs: server 172.16.0.2 not responding, still trying
[...]
```

Although it seems to be able to reconnect from time to time, the machine 
is not accessible.

Afterwards I found some older notes about this machine which mention no 
issues during diskless operation with the very same configuration 
(kernel and possibly also userland), which made me wonder, if there's 
maybe an issue between the machine's built-in NIC and my used 1000 Mbit 
network switch. And indeed, when connecting another 100 Mbit network 
switch in between the 712/80 and the 1000 Mbit network switch the issue 
seemed to be gone and the machine stayed accessible .

But later this week I retried the 712/80 with the current Linux kernel 
(4.15.x) and Debian userland and the issue hit me again, although much 
later and despite the 100 Mbit network switch in between. Looking at it 
I could see that the collision indicator was active on the switch for 
the port used by the 712/80. I then configured a singular port of the 
1000 Mbit network switch to 10 Mbit full duplex and attached the 712/80 
to it. And then the issue again seemed to be gone. But trying to install 
a package or updating the package cache again quickly triggered it. Well 
that's not that of an issue, as I can do the package management for the 
712/80 with another machine (e.g. c8000).

Also interesting, the kernel messages for 4.15.11, please notice the 
time difference between "random: crng init done" and "Key type 
asymmetric registered":

```
[    0.000000] Linux version 4.15.0-2-parisc 
(debian-kernel@lists.debian.org) (gcc version 7.3.0 (Debian 7.3.0-12)) 
#1 Debian 4.15.11-1 (2018-03-20)
[    0.000000] unwind_init: start = 0x1086e8b4, end = 0x108c5644, 
entries = 22233
[    0.000000] FP[0] enabled: Rev 1 Model 13
[    0.000000] The 32-bit Kernel has started...
[...]
[    9.919844] workingset: timestamp_bits=14 max_order=15 bucket_order=1
[   10.168866] zbud: loaded
[   56.112387] random: crng init done
[  433.392379] Key type asymmetric registered
[  433.445502] Asymmetric key parser 'x509' registered
[...]
[  544.565451] systemd[1]: Detected architecture parisc.

Welcome to Debian GNU/Linux buster/sid!
[...]
[  OK  ] Started Serial Getty on ttyS0.
[  OK  ] Started Getty on tty1.
[  OK  ] Reached target Login Prompts.

Debian GNU/Linux buster/sid hp-712 ttyS0

hp-712 login:

```

...On first try I assumed the machine or the kernel would hang, but no, 
it was still working all the time.

Today I tested it again (with 4.15.11) and the issue this time hit me 
already during login, after I entered the username.

So I'm actually back at where I'm started. :-(

I suspect that maybe the built-in 82596 NIC cannot cope with the amount 
of traffic that happens during diskless operation - although I then 
wonder why it doesn't have a problem during the TFTP operation to load 
the lifimage. Next thing I'll examine will be the parameters used for 
the NFS mount (especially for rsize and wsize) - if I ever can login to 
it again :-). And maybe a fan for the passive heat sink of the CPU which 
gets quite hot during operation.

Any suggestions on where to look else?

****

For the rp3440 I (also) have to retract my earlier statement as it looks 
like my second rp3440 actually **works** diskless. I have to retest with 
my first rp3440 (currently in storage) as it seems it behaves 
differently in this regard - or maybe I misconfigured something there in 
the past. I have to recheck.

But for my second rp3440 I still had to blacklist the `radeon` module to 
achieve this, as otherwise the system (console) seems to crash shortly 
before the login prompt would have appeared or just after. This is my 
used kernel command line as configured with palo 1.99 and Linux 4.14.x:

```
Current command line:
0/vmlinux HOME=/ root=/dev/nfs ip=:::::enp32s2:dhcp 
modprobe.blacklist=radeon initrd=0/ramdisk TERM=vt102 console=ttyS0
  0: 0/vmlinux
  1: HOME=/
  2: root=/dev/nfs
  3: ip=:::::enp32s2:dhcp
  4: modprobe.blacklist=radeon
  5: initrd=0/ramdisk
  6: TERM=vt102
  7: console=ttyS0
```

Interestingly after upgrading all packages (obviously including palo) on 
the NFS root FS and building a new lifimage with Linux 4.15.x, 
blacklisting the radeon module seems to be no longer required. Not sure 
if this is due to palo 2.00 or Linux 4.15.x. Anyways the radeon module 
is no longer loaded automatically with this configuration.

****

So actually at least also the rp3440 can work diskless - good that you 
asked, Helge. :-)

Cheers,
Frank



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Xref: news.gmane.org gmane.linux.debian.ports.hppa:7723 gmane.linux.ports.parisc:28511
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On 19.04.2018 21:29, Frank Scheiner wrote:
>>> Apart from the rp3440 - and maybe also the 712/80 which showed some issue with it's built-in NIC after netbooting the Linux kernel and the OS
>>
>> What kind of problems?
> 
> Unfortunately I seem to not have made any notes for the issue with the 712/80, so I retried with the assumed issue creating configuration earlier this week:
> 
> This configuration was using a Debian Linux kernel 4.9.25-1 (4.9.0-3-parisc from 2017-05-02). And when netbooting it, shortly after login the machine seems to loose contact to the NFS server:
> 
> ```
> [...]
> [  OK  ] Started Serial Getty on ttyS0.
> [  OK  ] Started Getty on tty1.
> [  OK  ] Reached target Login Prompts.
> 
> Debian GNU/Linux buster/sid hp-712 ttyS0
> 
> hp-712 login: root
> Password:
> Last login: Thu Sep 18 11:30:50 CET 1902 from 172.16.1.1 on pts/0
> Linux hp-712 4.9.0-3-parisc #1 Debian 4.9.25-1 (2017-05-02) parisc
> 
> The programs included with the Debian GNU/Linux system are free software;
> the exact distribution terms for each program are described in the
> individual files in /usr/share/doc/*/copyright.
> 
> Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
> permitted by applicable law.
> 
> [  232.973913] nfs: server 172.16.0.2 not responding, still trying
> [  233.094265] nfs: server 172.16.0.2 not responding, still trying
> [  233.205127] nfs: server 172.16.0.2 not responding, still trying
> [  233.568429] nfs: server 172.16.0.2 not responding, still trying
> [  233.692383] nfs: server 172.16.0.2 not responding, still trying
> [  233.808818] nfs: server 172.16.0.2 not responding, still trying
> [...]
> [  235.179253] nfs: server 172.16.0.2 OK
> [  235.251896] nfs: server 172.16.0.2 not responding, still trying
> [...]
> ```
> 
> Although it seems to be able to reconnect from time to time, the machine is not accessible.
> 
> Afterwards I found some older notes about this machine which mention
> no issues during diskless operation with the very same configuration
> (kernel and possibly also userland), which made me wonder, if there's
> maybe an issue between the machine's built-in NIC and my used 1000
> Mbit network switch. And indeed, when connecting another 100 Mbit
> network switch in between the 712/80 and the 1000 Mbit network switch
> the issue seemed to be gone and the machine stayed accessible .
> 
> But later this week I retried the 712/80 with the current Linux
> kernel (4.15.x) and Debian userland and the issue hit me again,
> although much later and despite the 100 Mbit network switch in
> between. Looking at it I could see that the collision indicator was
> active on the switch for the port used by the 712/80. I then
> configured a singular port of the 1000 Mbit network switch to 10 Mbit
> full duplex and attached the 712/80 to it. And then the issue again
> seemed to be gone. But trying to install a package or updating the
> package cache again quickly triggered it. Well that's not that of an
> issue, as I can do the package management for the 712/80 with another
> machine (e.g. c8000).
> 
> Also interesting, the kernel messages for 4.15.11, please notice the
> time difference between "random: crng init done" and "Key type
> asymmetric registered":
Seems to be a generic issue.
https://www.linuxquestions.org/questions/showthread.php?p=5803405#post5803405

My assumption is, that the kernel waits until it has
enough randomness for the various encryption algorithms. 

> 
> ```
> [    0.000000] Linux version 4.15.0-2-parisc (debian-kernel@lists.debian.org) (gcc version 7.3.0 (Debian 7.3.0-12)) #1 Debian 4.15.11-1 (2018-03-20)
> [    0.000000] unwind_init: start = 0x1086e8b4, end = 0x108c5644, entries = 22233
> [    0.000000] FP[0] enabled: Rev 1 Model 13
> [    0.000000] The 32-bit Kernel has started...
> [...]
> [    9.919844] workingset: timestamp_bits=14 max_order=15 bucket_order=1
> [   10.168866] zbud: loaded
> [   56.112387] random: crng init done
> [  433.392379] Key type asymmetric registered
> [  433.445502] Asymmetric key parser 'x509' registered
> [...]
> [  544.565451] systemd[1]: Detected architecture parisc.
> 
> Welcome to Debian GNU/Linux buster/sid!
> [...]
> [  OK  ] Started Serial Getty on ttyS0.
> [  OK  ] Started Getty on tty1.
> [  OK  ] Reached target Login Prompts.
> 
> Debian GNU/Linux buster/sid hp-712 ttyS0
> 
> hp-712 login:
> 
> ```
> 
> ...On first try I assumed the machine or the kernel would hang, but no, it was still working all the time.
> 
> Today I tested it again (with 4.15.11) and the issue this time hit me already during login, after I entered the username.
> 
> So I'm actually back at where I'm started. :-(
> 
> I suspect that maybe the built-in 82596 NIC cannot cope with the
> amount of traffic that happens during diskless operation - although I
> then wonder why it doesn't have a problem during the TFTP operation
> to load the lifimage.
When loading via TFTP not much traffic is generated.

> Next thing I'll examine will be the parameters used for the NFS mount
> (especially for rsize and wsize) - if I ever can login to it again
> :-). And maybe a fan for the passive heat sink of the CPU which gets
> quite hot during operation.
> 
> Any suggestions on where to look else?

Not really.


> 
> ****
> 
> For the rp3440 I (also) have to retract my earlier statement as it
> looks like my second rp3440 actually **works** diskless. I have to
> retest with my first rp3440 (currently in storage) as it seems it
> behaves differently in this regard - or maybe I misconfigured
> something there in the past. I have to recheck.
> 
> But for my second rp3440 I still had to blacklist the `radeon` module
> to achieve this, as otherwise the system (console) seems to crash
> shortly before the login prompt would have appeared or just after.
> This is my used kernel command line as configured with palo 1.99 and
> Linux 4.14.x:
> 
> ```
> Current command line:
> 0/vmlinux HOME=/ root=/dev/nfs ip=:::::enp32s2:dhcp modprobe.blacklist=radeon initrd=0/ramdisk TERM=vt102 console=ttyS0
>  0: 0/vmlinux
>  1: HOME=/
>  2: root=/dev/nfs
>  3: ip=:::::enp32s2:dhcp
>  4: modprobe.blacklist=radeon
>  5: initrd=0/ramdisk
>  6: TERM=vt102
>  7: console=ttyS0
> ```
> 
> Interestingly after upgrading all packages (obviously including palo)
> on the NFS root FS and building a new lifimage with Linux 4.15.x,
> blacklisting the radeon module seems to be no longer required. Not
> sure if this is due to palo 2.00 or Linux 4.15.x. Anyways the radeon
> module is no longer loaded automatically with this configuration.

There were two issues fixed regarding rp3440.
1. The radeon module on the management board is automatically
disabled by the Linux kernel. This fixes crashes/hangs.
2. The serial port on the management board is disabled by the
Linux kernel.
-> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bcf3f1752a622f1372d3252d0fea8855d89812e7

Older versions of palo tried to work around problem #2 by 
giving kernel parameter "console=ttyS1" to the Linux kernel when
booting.
So, since you upgraded palo and kernel both workarounds aren't
necessary any longer and rp-class machines should work without
any further quirks.

Helge



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To: iommu@lists.linux-foundation.org
Cc: linux-arch@vger.kernel.org
Cc: Michal Simek <monstr@monstr.eu>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
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Cc: linux-kernel@vger.kernel.org
Subject: [RFC] common non-cache coherent direct dma mapping ops

Hi all,

this series continues consolidating the dma-mapping code, with a focus
on architectures that do not (always) provide cache coherence for DMA.
Three architectures (arm, mips and powerpc) are still left to be
converted later due to complexity of their dma ops selection.

The dma-noncoherent ops calls the dma-direct ops for the actual
translation of streaming mappins and allow the architecture to provide
any cache flushing required for cpu to device and/or device to cpu
ownership transfers.  The dma coherent allocator is for now still left
entirely to architecture supplied implementations due the amount of
variations.  Hopefully we can do some consolidation for them later on
as well.

A lot of architectures are currently doing very questionable things
in their dma mapping routines, which are documented in the changelogs
for each patch.  Please review them very careful and correct me on
incorrect assumptions.

Because this series sits on top of two previously submitted series
a git tree might be useful to actually test it.  It is provided here:

    git://git.infradead.org/users/hch/misc.git generic-dma-noncoherent

Gitweb:

    http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/generic-dma-noncoherent

From - Thu Nov 08 21:41:19 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH 01/22] dma-debug: move initialization to common code
Date: Fri, 20 Apr 2018 10:02:52 +0200
Lines: 414
Approved: news@gmane.org
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Most mainstream architectures are using 65536 entries, so lets stick to
that.  If someone is really desperate to override it that can still be
done through <asm/dma-mapping.h>, but I'd rather see a really good
rationale for that.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arm/mm/dma-mapping-nommu.c |  9 ---------
 arch/arm/mm/dma-mapping.c       |  9 ---------
 arch/arm64/mm/dma-mapping.c     | 10 ----------
 arch/c6x/kernel/dma.c           | 11 -----------
 arch/ia64/kernel/dma-mapping.c  | 10 ----------
 arch/microblaze/kernel/dma.c    | 11 -----------
 arch/mips/mm/dma-default.c      | 10 ----------
 arch/openrisc/kernel/dma.c      | 11 -----------
 arch/powerpc/kernel/dma.c       |  3 ---
 arch/s390/pci/pci_dma.c         |  9 ---------
 arch/sh/mm/consistent.c         |  9 ---------
 arch/sparc/kernel/Makefile      |  2 --
 arch/sparc/kernel/dma.c         | 13 -------------
 arch/x86/kernel/pci-dma.c       |  4 ----
 arch/xtensa/kernel/pci-dma.c    |  9 ---------
 include/linux/dma-debug.h       |  6 ------
 lib/dma-debug.c                 | 21 ++++++++++++++-------
 17 files changed, 14 insertions(+), 143 deletions(-)
 delete mode 100644 arch/sparc/kernel/dma.c

diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index 619f24a42d09..f448a0663b10 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -241,12 +241,3 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 void arch_teardown_dma_ops(struct device *dev)
 {
 }
-
-#define PREALLOC_DMA_DEBUG_ENTRIES	4096
-
-static int __init dma_debug_do_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-core_initcall(dma_debug_do_init);
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 8c398fedbbb6..c26bf83f44ca 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -1165,15 +1165,6 @@ int arm_dma_supported(struct device *dev, u64 mask)
 	return __dma_supported(dev, mask, false);
 }
 
-#define PREALLOC_DMA_DEBUG_ENTRIES	4096
-
-static int __init dma_debug_do_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-core_initcall(dma_debug_do_init);
-
 #ifdef CONFIG_ARM_DMA_USE_IOMMU
 
 static int __dma_info_to_prot(enum dma_data_direction dir, unsigned long attrs)
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index a96ec0181818..db01f2709842 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -508,16 +508,6 @@ static int __init arm64_dma_init(void)
 }
 arch_initcall(arm64_dma_init);
 
-#define PREALLOC_DMA_DEBUG_ENTRIES	4096
-
-static int __init dma_debug_do_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-fs_initcall(dma_debug_do_init);
-
-
 #ifdef CONFIG_IOMMU_DMA
 #include <linux/dma-iommu.h>
 #include <linux/platform_device.h>
diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
index 9fff8be75f58..31e1a9ec3a9c 100644
--- a/arch/c6x/kernel/dma.c
+++ b/arch/c6x/kernel/dma.c
@@ -136,14 +136,3 @@ const struct dma_map_ops c6x_dma_ops = {
 	.sync_sg_for_cpu	= c6x_dma_sync_sg_for_cpu,
 };
 EXPORT_SYMBOL(c6x_dma_ops);
-
-/* Number of entries preallocated for DMA-API debugging */
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
-static int __init dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-
-	return 0;
-}
-fs_initcall(dma_init);
diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
index f2d57e66fd86..7a471d8d67d4 100644
--- a/arch/ia64/kernel/dma-mapping.c
+++ b/arch/ia64/kernel/dma-mapping.c
@@ -9,16 +9,6 @@ int iommu_detected __read_mostly;
 const struct dma_map_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
-static int __init dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-
-	return 0;
-}
-fs_initcall(dma_init);
-
 const struct dma_map_ops *dma_get_ops(struct device *dev)
 {
 	return dma_ops;
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index c91e8cef98dd..3145e7dc8ab1 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -184,14 +184,3 @@ const struct dma_map_ops dma_nommu_ops = {
 	.sync_sg_for_device	= dma_nommu_sync_sg_for_device,
 };
 EXPORT_SYMBOL(dma_nommu_ops);
-
-/* Number of entries preallocated for DMA-API debugging */
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
-static int __init dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-
-	return 0;
-}
-fs_initcall(dma_init);
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index dcafa43613b6..f9fef0028ca2 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -402,13 +402,3 @@ static const struct dma_map_ops mips_default_dma_map_ops = {
 
 const struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
 EXPORT_SYMBOL(mips_dma_map_ops);
-
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
-static int __init mips_dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-
-	return 0;
-}
-fs_initcall(mips_dma_init);
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index a945f00011b4..ec7fd45704d2 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -247,14 +247,3 @@ const struct dma_map_ops or1k_dma_map_ops = {
 	.sync_single_for_device = or1k_sync_single_for_device,
 };
 EXPORT_SYMBOL(or1k_dma_map_ops);
-
-/* Number of entries preallocated for DMA-API debugging */
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
-static int __init dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-
-	return 0;
-}
-fs_initcall(dma_init);
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index da20569de9d4..138157deeadf 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -309,8 +309,6 @@ int dma_set_coherent_mask(struct device *dev, u64 mask)
 }
 EXPORT_SYMBOL(dma_set_coherent_mask);
 
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
 int dma_set_mask(struct device *dev, u64 dma_mask)
 {
 	if (ppc_md.dma_set_mask)
@@ -361,7 +359,6 @@ EXPORT_SYMBOL_GPL(dma_get_required_mask);
 
 static int __init dma_init(void)
 {
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
 #ifdef CONFIG_PCI
 	dma_debug_add_bus(&pci_bus_type);
 #endif
diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index 10abf5ed6187..d387a0fbdd7e 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -668,15 +668,6 @@ void zpci_dma_exit(void)
 	kmem_cache_destroy(dma_region_table_cache);
 }
 
-#define PREALLOC_DMA_DEBUG_ENTRIES	(1 << 16)
-
-static int __init dma_debug_do_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-fs_initcall(dma_debug_do_init);
-
 const struct dma_map_ops s390_pci_dma_ops = {
 	.alloc		= s390_dma_alloc,
 	.free		= s390_dma_free,
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 6ea3aab508f2..a7bff3f29c2b 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -20,18 +20,9 @@
 #include <asm/cacheflush.h>
 #include <asm/addrspace.h>
 
-#define PREALLOC_DMA_DEBUG_ENTRIES	4096
-
 const struct dma_map_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
-static int __init dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-fs_initcall(dma_init);
-
 void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 				 dma_addr_t *dma_handle, gfp_t gfp,
 				 unsigned long attrs)
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index a284662b0e4c..cf8640841b7a 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -74,8 +74,6 @@ obj-$(CONFIG_SPARC64)	+= pcr.o
 obj-$(CONFIG_SPARC64)	+= nmi.o
 obj-$(CONFIG_SPARC64_SMP) += cpumap.o
 
-obj-y                     += dma.o
-
 obj-$(CONFIG_PCIC_PCI)    += pcic.o
 obj-$(CONFIG_LEON_PCI)    += leon_pci.o
 obj-$(CONFIG_SPARC_GRPCI2)+= leon_pci_grpci2.o
diff --git a/arch/sparc/kernel/dma.c b/arch/sparc/kernel/dma.c
deleted file mode 100644
index f73e7597c971..000000000000
--- a/arch/sparc/kernel/dma.c
+++ /dev/null
@@ -1,13 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/kernel.h>
-#include <linux/dma-mapping.h>
-#include <linux/dma-debug.h>
-
-#define PREALLOC_DMA_DEBUG_ENTRIES       (1 << 15)
-
-static int __init dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-fs_initcall(dma_init);
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 77625b60a510..bcbaa2e8031e 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -55,9 +55,6 @@ struct device x86_dma_fallback_dev = {
 };
 EXPORT_SYMBOL(x86_dma_fallback_dev);
 
-/* Number of entries preallocated for DMA-API debugging */
-#define PREALLOC_DMA_DEBUG_ENTRIES       65536
-
 void __init pci_iommu_alloc(void)
 {
 	struct iommu_table_entry *p;
@@ -189,7 +186,6 @@ EXPORT_SYMBOL(arch_dma_supported);
 static int __init pci_iommu_init(void)
 {
 	struct iommu_table_entry *p;
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
 
 #ifdef CONFIG_PCI
 	dma_debug_add_bus(&pci_bus_type);
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index 732631ce250f..392b4a80ebc2 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -261,12 +261,3 @@ const struct dma_map_ops xtensa_dma_map_ops = {
 	.mapping_error = xtensa_dma_mapping_error,
 };
 EXPORT_SYMBOL(xtensa_dma_map_ops);
-
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
-static int __init xtensa_dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-fs_initcall(xtensa_dma_init);
diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index c7d844f09c3a..a785f2507159 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -30,8 +30,6 @@ struct bus_type;
 
 extern void dma_debug_add_bus(struct bus_type *bus);
 
-extern void dma_debug_init(u32 num_entries);
-
 extern int dma_debug_resize_entries(u32 num_entries);
 
 extern void debug_dma_map_page(struct device *dev, struct page *page,
@@ -100,10 +98,6 @@ static inline void dma_debug_add_bus(struct bus_type *bus)
 {
 }
 
-static inline void dma_debug_init(u32 num_entries)
-{
-}
-
 static inline int dma_debug_resize_entries(u32 num_entries)
 {
 	return 0;
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 7f5cdc1e6b29..712a897174e4 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -41,6 +41,11 @@
 #define HASH_FN_SHIFT   13
 #define HASH_FN_MASK    (HASH_SIZE - 1)
 
+/* allow architectures to override this if absolutely required */
+#ifndef PREALLOC_DMA_DEBUG_ENTRIES
+#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
+#endif
+
 enum {
 	dma_debug_single,
 	dma_debug_page,
@@ -1004,18 +1009,16 @@ void dma_debug_add_bus(struct bus_type *bus)
 	bus_register_notifier(bus, nb);
 }
 
-/*
- * Let the architectures decide how many entries should be preallocated.
- */
-void dma_debug_init(u32 num_entries)
+static int dma_debug_init(void)
 {
+	u32 num_entries;
 	int i;
 
 	/* Do not use dma_debug_initialized here, since we really want to be
 	 * called to set dma_debug_initialized
 	 */
 	if (global_disable)
-		return;
+		return 0;
 
 	for (i = 0; i < HASH_SIZE; ++i) {
 		INIT_LIST_HEAD(&dma_entry_hash[i].list);
@@ -1026,17 +1029,19 @@ void dma_debug_init(u32 num_entries)
 		pr_err("DMA-API: error creating debugfs entries - disabling\n");
 		global_disable = true;
 
-		return;
+		return 0;
 	}
 
 	if (req_entries)
 		num_entries = req_entries;
+	else
+		num_entries = PREALLOC_DMA_DEBUG_ENTRIES;
 
 	if (prealloc_memory(num_entries) != 0) {
 		pr_err("DMA-API: debugging out of memory error - disabled\n");
 		global_disable = true;
 
-		return;
+		return 0;
 	}
 
 	nr_total_entries = num_free_entries;
@@ -1044,7 +1049,9 @@ void dma_debug_init(u32 num_entries)
 	dma_debug_initialized = true;
 
 	pr_info("DMA-API: debugging enabled by kernel config\n");
+	return 0;
 }
+core_initcall(dma_debug_init);
 
 static __init int dma_debug_cmdline(char *str)
 {
-- 
2.17.0



From - Thu Nov 08 21:41:19 2018
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Subject: [PATCH 02/22] dma-mapping: simplify Kconfig dependencies
Date: Fri, 20 Apr 2018 10:02:53 +0200
Lines: 33
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2746065>

ARCH_DMA_ADDR_T_64BIT is always true for 64-bit architectures now, so we
can skip the clause requiring it.  'n' is the default default, so no need
to explicitly state it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/Kconfig | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/lib/Kconfig b/lib/Kconfig
index 01a37920949c..726b0562caa7 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -443,13 +443,11 @@ config IOMMU_HELPER
 
 config DMA_DIRECT_OPS
 	bool
-	depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
-	default n
+	depends on HAS_DMA
 
 config DMA_VIRT_OPS
 	bool
-	depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
-	default n
+	depends on HAS_DMA
 
 config ARCH_HAS_SWIOTLB
 	bool
-- 
2.17.0



From - Thu Nov 08 21:41:19 2018
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Subject: [PATCH 03/22] dma-mapping: provide a generic dma-noncoherent implementation
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2746066>

Add a new dma_map_ops implementation that uses dma-direct for the
address mapping of streaming mappings, and which requires arch-specific
implemenations of coherent allocate/free.

Architectures have to provide flushing helpers to ownership trasnfers
to the device and/or CPU, and can provide optional implementations of
the coherent mmap functionality, and the cache_flush routines for
non-coherent long term allocations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 MAINTAINERS                       |   2 +
 include/asm-generic/dma-mapping.h |   9 +++
 include/linux/dma-direct.h        |   7 ++-
 include/linux/dma-mapping.h       |   1 +
 include/linux/dma-noncoherent.h   |  47 ++++++++++++++
 lib/Kconfig                       |  20 ++++++
 lib/Makefile                      |   1 +
 lib/dma-direct.c                  |   8 +--
 lib/dma-noncoherent.c             | 101 ++++++++++++++++++++++++++++++
 9 files changed, 191 insertions(+), 5 deletions(-)
 create mode 100644 include/linux/dma-noncoherent.h
 create mode 100644 lib/dma-noncoherent.c

diff --git a/MAINTAINERS b/MAINTAINERS
index b60179d948bb..bbaf5459d297 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4327,12 +4327,14 @@ W:	http://git.infradead.org/users/hch/dma-mapping.git
 S:	Supported
 F:	lib/dma-debug.c
 F:	lib/dma-direct.c
+F:	lib/dma-noncoherent.c
 F:	lib/dma-virt.c
 F:	drivers/base/dma-mapping.c
 F:	drivers/base/dma-coherent.c
 F:	include/asm-generic/dma-mapping.h
 F:	include/linux/dma-direct.h
 F:	include/linux/dma-mapping.h
+F:	include/linux/dma-noncoherent.h
 
 DME1737 HARDWARE MONITOR DRIVER
 M:	Juerg Haefliger <juergh@gmail.com>
diff --git a/include/asm-generic/dma-mapping.h b/include/asm-generic/dma-mapping.h
index 880a292d792f..ad2868263867 100644
--- a/include/asm-generic/dma-mapping.h
+++ b/include/asm-generic/dma-mapping.h
@@ -4,7 +4,16 @@
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
+	/*
+	 * Use the non-coherent ops if available.  If an architecture wants a
+	 * more fine-grained selection of operations it will have to implement
+	 * get_arch_dma_ops itself or use the per-device dma_ops.
+	 */
+#ifdef CONFIG_DMA_NONCOHERENT_OPS
+	return &dma_noncoherent_ops;
+#else
 	return &dma_direct_ops;
+#endif
 }
 
 #endif /* _ASM_GENERIC_DMA_MAPPING_H */
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 53ad6a47f513..8d9f33febde5 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -59,6 +59,11 @@ void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 		gfp_t gfp, unsigned long attrs);
 void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		dma_addr_t dma_addr, unsigned long attrs);
+dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size, enum dma_data_direction dir,
+		unsigned long attrs);
+int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
+		enum dma_data_direction dir, unsigned long attrs);
 int dma_direct_supported(struct device *dev, u64 mask);
-
+int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr);
 #endif /* _LINUX_DMA_DIRECT_H */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 25a9a2b04f78..4be070df5fc5 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -136,6 +136,7 @@ struct dma_map_ops {
 };
 
 extern const struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_noncoherent_ops;
 extern const struct dma_map_ops dma_virt_ops;
 
 #define DMA_BIT_MASK(n)	(((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
diff --git a/include/linux/dma-noncoherent.h b/include/linux/dma-noncoherent.h
new file mode 100644
index 000000000000..10b2654d549b
--- /dev/null
+++ b/include/linux/dma-noncoherent.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_DMA_NONCOHERENT_H
+#define _LINUX_DMA_NONCOHERENT_H 1
+
+#include <linux/dma-mapping.h>
+
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs);
+void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t dma_addr, unsigned long attrs);
+
+#ifdef CONFIG_DMA_NONCOHERENT_MMAP
+int arch_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+		void *cpu_addr, dma_addr_t dma_addr, size_t size,
+		unsigned long attrs);
+#else
+#define arch_dma_mmap NULL
+#endif /* CONFIG_DMA_NONCOHERENT_MMAP */
+
+#ifdef CONFIG_DMA_NONCOHERENT_CACHE_SYNC
+void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+		enum dma_data_direction direction);
+#else
+#define arch_dma_cache_sync NULL
+#endif /* CONFIG_DMA_NONCOHERENT_CACHE_SYNC */
+
+#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir);
+#else
+static inline void arch_sync_dma_for_device(struct device *dev,
+		phys_addr_t paddr, size_t size, enum dma_data_direction dir)
+{
+}
+#endif /* ARCH_HAS_SYNC_DMA_FOR_DEVICE */
+
+#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir);
+#else
+static inline void arch_sync_dma_for_cpu(struct device *dev,
+		phys_addr_t paddr, size_t size, enum dma_data_direction dir)
+{
+}
+#endif /* ARCH_HAS_SYNC_DMA_FOR_CPU */
+
+#endif /* _LINUX_DMA_NONCOHERENT_H */
diff --git a/lib/Kconfig b/lib/Kconfig
index 726b0562caa7..ae4bf1d8af11 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -441,10 +441,30 @@ config ARCH_DMA_ADDR_T_64BIT
 config IOMMU_HELPER
 	bool
 
+config ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	bool
+
+config ARCH_HAS_SYNC_DMA_FOR_CPU
+	bool
+	select NEED_DMA_MAP_STATE
+
 config DMA_DIRECT_OPS
 	bool
 	depends on HAS_DMA
 
+config DMA_NONCOHERENT_OPS
+	bool
+	depends on HAS_DMA
+	select DMA_DIRECT_OPS
+
+config DMA_NONCOHERENT_MMAP
+	bool
+	depends on DMA_NONCOHERENT_OPS
+
+config DMA_NONCOHERENT_CACHE_SYNC
+	bool
+	depends on DMA_NONCOHERENT_OPS
+
 config DMA_VIRT_OPS
 	bool
 	depends on HAS_DMA
diff --git a/lib/Makefile b/lib/Makefile
index 94203b5eecd4..9f18c8152281 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -30,6 +30,7 @@ lib-$(CONFIG_PRINTK) += dump_stack.o
 lib-$(CONFIG_MMU) += ioremap.o
 lib-$(CONFIG_SMP) += cpumask.o
 lib-$(CONFIG_DMA_DIRECT_OPS) += dma-direct.o
+lib-$(CONFIG_DMA_NONCOHERENT_OPS) += dma-noncoherent.o
 lib-$(CONFIG_DMA_VIRT_OPS) += dma-virt.o
 
 lib-y	+= kobject.o klist.o
diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index 199ae4cdd28f..9abb93541dfe 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -120,7 +120,7 @@ void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		free_pages((unsigned long)cpu_addr, page_order);
 }
 
-static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
+dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
 		unsigned long offset, size_t size, enum dma_data_direction dir,
 		unsigned long attrs)
 {
@@ -131,8 +131,8 @@ static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
 	return dma_addr;
 }
 
-static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
-		int nents, enum dma_data_direction dir, unsigned long attrs)
+int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
+		enum dma_data_direction dir, unsigned long attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -167,7 +167,7 @@ int dma_direct_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-static int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr)
+int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
 	return dma_addr == DIRECT_MAPPING_ERROR;
 }
diff --git a/lib/dma-noncoherent.c b/lib/dma-noncoherent.c
new file mode 100644
index 000000000000..f4b8532c20ac
--- /dev/null
+++ b/lib/dma-noncoherent.c
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018 Christoph Hellwig.
+ *
+ * DMA operations that map physical memory directly without providing cache
+ * coherence.
+ */
+#include <linux/export.h>
+#include <linux/mm.h>
+#include <linux/dma-direct.h>
+#include <linux/dma-noncoherent.h>
+#include <linux/scatterlist.h>
+
+static void dma_noncoherent_sync_single_for_device(struct device *dev,
+		dma_addr_t addr, size_t size, enum dma_data_direction dir)
+{
+	arch_sync_dma_for_device(dev, dma_to_phys(dev, addr), size, dir);
+}
+
+static void dma_noncoherent_sync_sg_for_device(struct device *dev,
+		struct scatterlist *sgl, int nents, enum dma_data_direction dir)
+{
+	struct scatterlist *sg;
+	int i;
+
+	for_each_sg(sgl, sg, nents, i)
+		arch_sync_dma_for_device(dev, sg_phys(sg), sg->length, dir);
+}
+
+static dma_addr_t dma_noncoherent_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size, enum dma_data_direction dir,
+		unsigned long attrs)
+{
+	dma_addr_t addr;
+
+	addr = dma_direct_map_page(dev, page, offset, size, dir, attrs);
+	if (!dma_mapping_error(dev, addr) && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		arch_sync_dma_for_device(dev, page_to_phys(page), size, dir);
+	return addr;
+}
+
+static int dma_noncoherent_map_sg(struct device *dev, struct scatterlist *sgl,
+		int nents, enum dma_data_direction dir, unsigned long attrs)
+{
+	nents = dma_direct_map_sg(dev, sgl, nents, dir, attrs);
+	if (nents > 0 && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		dma_noncoherent_sync_sg_for_device(dev, sgl, nents, dir);
+	return nents;
+}
+
+#ifdef CONFIG_DMA_NONCOHERENT_SYNC_FOR_CPU
+static void dma_noncoherent_sync_single_for_cpu(struct device *dev,
+		dma_addr_t addr, size_t size, enum dma_data_direction dir)
+{
+	arch_sync_dma_for_cpu(dev, dma_to_phys(dev, addr), size, dir);
+}
+
+static void dma_noncoherent_sync_sg_for_cpu(struct device *dev,
+		struct scatterlist *sgl, int nents, enum dma_data_direction dir)
+{
+	struct scatterlist *sg;
+	int i;
+
+	for_each_sg(sgl, sg, nents, i)
+		arch_sync_dma_for_cpu(dev, sg_phys(sg), sg->length, dir);
+}
+
+static void dma_noncoherent_unmap_page(struct device *dev, dma_addr_t addr,
+		size_t size, enum dma_data_direction dir, unsigned long attrs)
+{
+	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		dma_noncoherent_sync_single_for_cpu(dev, addr, size, dir);
+}
+
+static void dma_noncoherent_unmap_sg(struct device *dev, struct scatterlist *sgl,
+		int nents, enum dma_data_direction dir, unsigned long attrs)
+{
+	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		dma_noncoherent_sync_sg_for_cpu(dev, sgl, nents, dir);
+}
+#endif
+
+const struct dma_map_ops dma_noncoherent_ops = {
+	.alloc			= arch_dma_alloc,
+	.free			= arch_dma_free,
+	.mmap			= arch_dma_mmap,
+	.sync_single_for_device	= dma_noncoherent_sync_single_for_device,
+	.sync_sg_for_device	= dma_noncoherent_sync_sg_for_device,
+	.map_page		= dma_noncoherent_map_page,
+	.map_sg			= dma_noncoherent_map_sg,
+#ifdef CONFIG_DMA_NONCOHERENT_SYNC_FOR_CPU
+	.sync_single_for_cpu	= dma_noncoherent_sync_single_for_cpu,
+	.sync_sg_for_cpu	= dma_noncoherent_sync_sg_for_cpu,
+	.unmap_page		= dma_noncoherent_unmap_page,
+	.unmap_sg		= dma_noncoherent_unmap_sg,
+#endif
+	.dma_supported		= dma_direct_supported,
+	.mapping_error		= dma_direct_mapping_error,
+	.cache_sync		= arch_dma_cache_sync,
+};
+EXPORT_SYMBOL(dma_noncoherent_ops);
-- 
2.17.0



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Subject: [PATCH 07/22] arm-nommu: use generic dma_noncoherent_ops
Date: Fri, 20 Apr 2018 10:02:58 +0200
Lines: 256
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2746067>

Switch to the generic noncoherent direct mapping implementation for
the nommu dma map implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arc/Kconfig                |   1 +
 arch/arm/Kconfig                |   4 +
 arch/arm/mm/dma-mapping-nommu.c | 139 +++++---------------------------
 3 files changed, 23 insertions(+), 121 deletions(-)

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 89d47eac18b2..3a492a9aeaad 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -9,6 +9,7 @@
 config ARC
 	def_bool y
 	select ARC_TIMERS
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_HAS_SYNC_DMA_FOR_CPU
 	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_HAS_SG_CHAIN
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index f91f69174630..eacc45ac4e77 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -12,6 +12,8 @@ config ARM
 	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
 	select ARCH_HAS_STRICT_MODULE_RWX if MMU
+	select ARCH_HAS_SYNC_DMA_FOR_CPU if !MMU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE if !MMU
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_HAVE_CUSTOM_GPIO_H
 	select ARCH_HAS_GCOV_PROFILE_ALL
@@ -27,6 +29,8 @@ config ARM
 	select CPU_PM if (SUSPEND || CPU_IDLE)
 	select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
 	select DMA_DIRECT_OPS if !MMU
+	select DMA_NONCOHERENT_OPS if !MMU
+	select DMA_NONCOHERENT_MMAP if !MMU
 	select EDAC_SUPPORT
 	select EDAC_ATOMIC_SCRUB
 	select GENERIC_ALLOCATOR
diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index f448a0663b10..a74ed6632982 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -12,6 +12,7 @@
 #include <linux/export.h>
 #include <linux/mm.h>
 #include <linux/dma-direct.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/scatterlist.h>
 
 #include <asm/cachetype.h>
@@ -26,18 +27,16 @@
  *   - MMU/MPU is off
  *   - cpu is v7m w/o cache support
  *   - device is coherent
- *  otherwise arm_nommu_dma_ops is used.
+ *  otherwise dma_noncoherent_ops is used.
  *
- *  arm_nommu_dma_ops rely on consistent DMA memory (please, refer to
+ *  dma_noncoherent_ops rely on consistent DMA memory (please, refer to
  *  [1] on how to declare such memory).
  *
  *  [1] Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
  */
 
-static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
-				 dma_addr_t *dma_handle, gfp_t gfp,
-				 unsigned long attrs)
-
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -65,9 +64,8 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
 	return ret;
 }
 
-static void arm_nommu_dma_free(struct device *dev, size_t size,
-			       void *cpu_addr, dma_addr_t dma_addr,
-			       unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t dma_addr, unsigned long attrs)
 {
 	if (attrs & DMA_ATTR_NON_CONSISTENT) {
 		dma_direct_free(dev, size, cpu_addr, dma_addr, attrs);
@@ -81,9 +79,9 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
 	return;
 }
 
-static int arm_nommu_dma_mmap(struct device *dev, struct vm_area_struct *vma,
-			      void *cpu_addr, dma_addr_t dma_addr, size_t size,
-			      unsigned long attrs)
+int arch_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+		void *cpu_addr, dma_addr_t dma_addr, size_t size,
+		unsigned long attrs)
 {
 	int ret;
 
@@ -93,9 +91,8 @@ static int arm_nommu_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 	return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size);
 }
 
-
-static void __dma_page_cpu_to_dev(phys_addr_t paddr, size_t size,
-				  enum dma_data_direction dir)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
 	dmac_map_area(__va(paddr), size, dir);
 
@@ -105,8 +102,8 @@ static void __dma_page_cpu_to_dev(phys_addr_t paddr, size_t size,
 		outer_clean_range(paddr, paddr + size);
 }
 
-static void __dma_page_dev_to_cpu(phys_addr_t paddr, size_t size,
-				  enum dma_data_direction dir)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
 	if (dir != DMA_TO_DEVICE) {
 		outer_inv_range(paddr, paddr + size);
@@ -114,110 +111,9 @@ static void __dma_page_dev_to_cpu(phys_addr_t paddr, size_t size,
 	}
 }
 
-static dma_addr_t arm_nommu_dma_map_page(struct device *dev, struct page *page,
-					 unsigned long offset, size_t size,
-					 enum dma_data_direction dir,
-					 unsigned long attrs)
-{
-	dma_addr_t handle = page_to_phys(page) + offset;
-
-	__dma_page_cpu_to_dev(handle, size, dir);
-
-	return handle;
-}
-
-static void arm_nommu_dma_unmap_page(struct device *dev, dma_addr_t handle,
-				     size_t size, enum dma_data_direction dir,
-				     unsigned long attrs)
-{
-	__dma_page_dev_to_cpu(handle, size, dir);
-}
-
-
-static int arm_nommu_dma_map_sg(struct device *dev, struct scatterlist *sgl,
-				int nents, enum dma_data_direction dir,
-				unsigned long attrs)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sgl, sg, nents, i) {
-		sg_dma_address(sg) = sg_phys(sg);
-		sg_dma_len(sg) = sg->length;
-		__dma_page_cpu_to_dev(sg_dma_address(sg), sg_dma_len(sg), dir);
-	}
-
-	return nents;
-}
-
-static void arm_nommu_dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
-				   int nents, enum dma_data_direction dir,
-				   unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sgl, sg, nents, i)
-		__dma_page_dev_to_cpu(sg_dma_address(sg), sg_dma_len(sg), dir);
-}
-
-static void arm_nommu_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t handle, size_t size, enum dma_data_direction dir)
-{
-	__dma_page_cpu_to_dev(handle, size, dir);
-}
-
-static void arm_nommu_dma_sync_single_for_cpu(struct device *dev,
-		dma_addr_t handle, size_t size, enum dma_data_direction dir)
-{
-	__dma_page_cpu_to_dev(handle, size, dir);
-}
-
-static void arm_nommu_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sgl,
-					     int nents, enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sgl, sg, nents, i)
-		__dma_page_cpu_to_dev(sg_dma_address(sg), sg_dma_len(sg), dir);
-}
-
-static void arm_nommu_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sgl,
-					  int nents, enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sgl, sg, nents, i)
-		__dma_page_dev_to_cpu(sg_dma_address(sg), sg_dma_len(sg), dir);
-}
-
-const struct dma_map_ops arm_nommu_dma_ops = {
-	.alloc			= arm_nommu_dma_alloc,
-	.free			= arm_nommu_dma_free,
-	.mmap			= arm_nommu_dma_mmap,
-	.map_page		= arm_nommu_dma_map_page,
-	.unmap_page		= arm_nommu_dma_unmap_page,
-	.map_sg			= arm_nommu_dma_map_sg,
-	.unmap_sg		= arm_nommu_dma_unmap_sg,
-	.sync_single_for_device	= arm_nommu_dma_sync_single_for_device,
-	.sync_single_for_cpu	= arm_nommu_dma_sync_single_for_cpu,
-	.sync_sg_for_device	= arm_nommu_dma_sync_sg_for_device,
-	.sync_sg_for_cpu	= arm_nommu_dma_sync_sg_for_cpu,
-};
-EXPORT_SYMBOL(arm_nommu_dma_ops);
-
-static const struct dma_map_ops *arm_nommu_get_dma_map_ops(bool coherent)
-{
-	return coherent ? &dma_direct_ops : &arm_nommu_dma_ops;
-}
-
 void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 			const struct iommu_ops *iommu, bool coherent)
 {
-	const struct dma_map_ops *dma_ops;
-
 	if (IS_ENABLED(CONFIG_CPU_V7M)) {
 		/*
 		 * Cache support for v7m is optional, so can be treated as
@@ -233,9 +129,10 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 		dev->archdata.dma_coherent = (get_cr() & CR_M) ? coherent : true;
 	}
 
-	dma_ops = arm_nommu_get_dma_map_ops(dev->archdata.dma_coherent);
-
-	set_dma_ops(dev, dma_ops);
+	if (dev->archdata.dma_coherent)
+		set_dma_ops(dev, &dma_direct_ops);
+	else
+		set_dma_ops(dev, &dma_noncoherent_ops);
 }
 
 void arch_teardown_dma_ops(struct device *dev)
-- 
2.17.0



From - Thu Nov 08 21:41:19 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH 09/22] hexagon: use generic dma_noncoherent_ops
Date: Fri, 20 Apr 2018 10:03:00 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2746068>

Switch to the generic noncoherent direct mapping implementation.

This removes the previous sync_single_for_cpu implementation, which looks
bogus given that no syncing is happening in the similar but more
important unmap_single case.

This adds the previously missing sync_sg_for_device implementation that
matches the pre-existing sync_single_for_device implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/hexagon/Kconfig                   |   2 +
 arch/hexagon/include/asm/Kbuild        |   1 +
 arch/hexagon/include/asm/dma-mapping.h |  40 -------
 arch/hexagon/kernel/dma.c              | 143 ++-----------------------
 4 files changed, 11 insertions(+), 175 deletions(-)
 delete mode 100644 arch/hexagon/include/asm/dma-mapping.h

diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 37adb2003033..bcbdcb32935c 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -4,6 +4,7 @@ comment "Linux Kernel Configuration for Hexagon"
 
 config HEXAGON
 	def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select HAVE_OPROFILE
 	# Other pending projects/to-do items.
 	# select HAVE_REGS_AND_STACK_ACCESS_API
@@ -28,6 +29,7 @@ config HEXAGON
 	select GENERIC_CLOCKEVENTS_BROADCAST
 	select MODULES_USE_ELF_RELA
 	select GENERIC_CPU_DEVICES
+	select DMA_NONCOHERENT_OPS
 	---help---
 	  Qualcomm Hexagon is a processor architecture designed for high
 	  performance and low power across a wide variety of applications.
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index e9743f689fb8..843a8086e980 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += bugs.h
 generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += extable.h
 generic-y += fb.h
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
deleted file mode 100644
index 263f6acbfb0f..000000000000
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * DMA operations for the Hexagon architecture
- *
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- */
-
-#ifndef _ASM_DMA_MAPPING_H
-#define _ASM_DMA_MAPPING_H
-
-#include <linux/types.h>
-#include <linux/cache.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
-#include <asm/io.h>
-
-struct device;
-
-extern const struct dma_map_ops *dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return dma_ops;
-}
-
-#endif
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index 77459df34e2e..ffc4ae8e126f 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -18,32 +18,19 @@
  * 02110-1301, USA.
  */
 
-#include <linux/dma-mapping.h>
-#include <linux/dma-direct.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/bootmem.h>
 #include <linux/genalloc.h>
-#include <asm/dma-mapping.h>
 #include <linux/module.h>
 #include <asm/page.h>
 
-#define HEXAGON_MAPPING_ERROR	0
-
-const struct dma_map_ops *dma_ops;
-EXPORT_SYMBOL(dma_ops);
-
-static inline void *dma_addr_to_virt(dma_addr_t dma_addr)
-{
-	return phys_to_virt((unsigned long) dma_addr);
-}
-
 static struct gen_pool *coherent_pool;
 
 
 /* Allocates from a pool of uncached memory that was reserved at boot time */
 
-static void *hexagon_dma_alloc_coherent(struct device *dev, size_t size,
-				 dma_addr_t *dma_addr, gfp_t flag,
-				 unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_addr,
+		gfp_t flag, unsigned long attrs)
 {
 	void *ret;
 
@@ -75,58 +62,17 @@ static void *hexagon_dma_alloc_coherent(struct device *dev, size_t size,
 	return ret;
 }
 
-static void hexagon_free_coherent(struct device *dev, size_t size, void *vaddr,
-				  dma_addr_t dma_addr, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_addr, unsigned long attrs)
 {
 	gen_pool_free(coherent_pool, (unsigned long) vaddr, size);
 }
 
-static int check_addr(const char *name, struct device *hwdev,
-		      dma_addr_t bus, size_t size)
-{
-	if (hwdev && hwdev->dma_mask && !dma_capable(hwdev, bus, size)) {
-		if (*hwdev->dma_mask >= DMA_BIT_MASK(32))
-			printk(KERN_ERR
-				"%s: overflow %Lx+%zu of device mask %Lx\n",
-				name, (long long)bus, size,
-				(long long)*hwdev->dma_mask);
-		return 0;
-	}
-	return 1;
-}
-
-static int hexagon_map_sg(struct device *hwdev, struct scatterlist *sg,
-			  int nents, enum dma_data_direction dir,
-			  unsigned long attrs)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	struct scatterlist *s;
-	int i;
-
-	WARN_ON(nents == 0 || sg[0].length == 0);
-
-	for_each_sg(sg, s, nents, i) {
-		s->dma_address = sg_phys(s);
-		if (!check_addr("map_sg", hwdev, s->dma_address, s->length))
-			return 0;
-
-		s->dma_length = s->length;
+	void *addr = phys_to_virt(paddr);
 
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		flush_dcache_range(dma_addr_to_virt(s->dma_address),
-				   dma_addr_to_virt(s->dma_address + s->length));
-	}
-
-	return nents;
-}
-
-/*
- * address is virtual
- */
-static inline void dma_sync(void *addr, size_t size,
-			    enum dma_data_direction dir)
-{
 	switch (dir) {
 	case DMA_TO_DEVICE:
 		hexagon_clean_dcache_range((unsigned long) addr,
@@ -144,76 +90,3 @@ static inline void dma_sync(void *addr, size_t size,
 		BUG();
 	}
 }
-
-/**
- * hexagon_map_page() - maps an address for device DMA
- * @dev:	pointer to DMA device
- * @page:	pointer to page struct of DMA memory
- * @offset:	offset within page
- * @size:	size of memory to map
- * @dir:	transfer direction
- * @attrs:	pointer to DMA attrs (not used)
- *
- * Called to map a memory address to a DMA address prior
- * to accesses to/from device.
- *
- * We don't particularly have many hoops to jump through
- * so far.  Straight translation between phys and virtual.
- *
- * DMA is not cache coherent so sync is necessary; this
- * seems to be a convenient place to do it.
- *
- */
-static dma_addr_t hexagon_map_page(struct device *dev, struct page *page,
-				   unsigned long offset, size_t size,
-				   enum dma_data_direction dir,
-				   unsigned long attrs)
-{
-	dma_addr_t bus = page_to_phys(page) + offset;
-	WARN_ON(size == 0);
-
-	if (!check_addr("map_single", dev, bus, size))
-		return HEXAGON_MAPPING_ERROR;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		dma_sync(dma_addr_to_virt(bus), size, dir);
-
-	return bus;
-}
-
-static void hexagon_sync_single_for_cpu(struct device *dev,
-					dma_addr_t dma_handle, size_t size,
-					enum dma_data_direction dir)
-{
-	dma_sync(dma_addr_to_virt(dma_handle), size, dir);
-}
-
-static void hexagon_sync_single_for_device(struct device *dev,
-					dma_addr_t dma_handle, size_t size,
-					enum dma_data_direction dir)
-{
-	dma_sync(dma_addr_to_virt(dma_handle), size, dir);
-}
-
-static int hexagon_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return dma_addr == HEXAGON_MAPPING_ERROR;
-}
-
-const struct dma_map_ops hexagon_dma_ops = {
-	.alloc		= hexagon_dma_alloc_coherent,
-	.free		= hexagon_free_coherent,
-	.map_sg		= hexagon_map_sg,
-	.map_page	= hexagon_map_page,
-	.sync_single_for_cpu = hexagon_sync_single_for_cpu,
-	.sync_single_for_device = hexagon_sync_single_for_device,
-	.mapping_error	= hexagon_mapping_error,
-};
-
-void __init hexagon_dma_init(void)
-{
-	if (dma_ops)
-		return;
-
-	dma_ops = &hexagon_dma_ops;
-}
-- 
2.17.0



From - Thu Nov 08 21:41:19 2018
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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 11/22] microblaze: use generic dma_noncoherent_ops
Date: Fri, 20 Apr 2018 10:03:02 +0200
Lines: 329
Approved: news@gmane.org
Message-ID: <20180420080313.18796-12-hch@lst.de>
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Cc: linux-arch@vger.kernel.org, Michal Simek <monstr@monstr.eu>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2746069>

Switch to the generic noncoherent direct mapping implementation.

This removes the direction-based optimizations in
sync_{single,sg}_for_{cpu,device} which were marked untestested and
do not match the usually very well tested {un,}map_{single,sg}
implementations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/microblaze/Kconfig                   |   4 +
 arch/microblaze/include/asm/Kbuild        |   1 +
 arch/microblaze/include/asm/dma-mapping.h |  28 -----
 arch/microblaze/include/asm/pgtable.h     |   2 -
 arch/microblaze/kernel/dma.c              | 144 ++--------------------
 arch/microblaze/mm/consistent.c           |   9 +-
 6 files changed, 22 insertions(+), 166 deletions(-)
 delete mode 100644 arch/microblaze/include/asm/dma-mapping.h

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 3817a3e2146c..91b9b999eb18 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -1,6 +1,8 @@
 config MICROBLAZE
 	def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_HAS_GCOV_PROFILE_ALL
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
 	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
 	select ARCH_WANT_IPC_PARSE_VERSION
@@ -8,6 +10,8 @@ config MICROBLAZE
 	select TIMER_OF
 	select CLONE_BACKWARDS3
 	select COMMON_CLK
+	select DMA_NONCOHERENT_OPS
+	select DMA_NONCOHERENT_MMAP
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CPU_DEVICES
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
index 3c80a5a308ed..8d3e71f43a3e 100644
--- a/arch/microblaze/include/asm/Kbuild
+++ b/arch/microblaze/include/asm/Kbuild
@@ -4,6 +4,7 @@ generic-y += bug.h
 generic-y += bugs.h
 generic-y += device.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
deleted file mode 100644
index add50c1373bf..000000000000
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Implements the generic device dma API for microblaze and the pci
- *
- * Copyright (C) 2009-2010 Michal Simek <monstr@monstr.eu>
- * Copyright (C) 2009-2010 PetaLogix
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * This file is base on powerpc and x86 dma-mapping.h versions
- * Copyright (C) 2004 IBM
- */
-
-#ifndef _ASM_MICROBLAZE_DMA_MAPPING_H
-#define _ASM_MICROBLAZE_DMA_MAPPING_H
-
-/*
- * Available generic sets of operations
- */
-extern const struct dma_map_ops dma_nommu_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &dma_nommu_ops;
-}
-
-#endif	/* _ASM_MICROBLAZE_DMA_MAPPING_H */
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index e53b8532353c..5174733fb489 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -551,8 +551,6 @@ void __init *early_get_page(void);
 
 extern unsigned long ioremap_bot, ioremap_base;
 
-void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle);
-void consistent_free(size_t size, void *vaddr);
 void consistent_sync(void *vaddr, size_t size, int direction);
 void consistent_sync_page(struct page *page, unsigned long offset,
 	size_t size, int direction);
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 3145e7dc8ab1..71032cf64669 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -8,29 +8,15 @@
  */
 
 #include <linux/device.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/gfp.h>
 #include <linux/dma-debug.h>
 #include <linux/export.h>
 #include <linux/bug.h>
 #include <asm/cacheflush.h>
 
-static void *dma_nommu_alloc_coherent(struct device *dev, size_t size,
-				       dma_addr_t *dma_handle, gfp_t flag,
-				       unsigned long attrs)
-{
-	return consistent_alloc(flag, size, dma_handle);
-}
-
-static void dma_nommu_free_coherent(struct device *dev, size_t size,
-				     void *vaddr, dma_addr_t dma_handle,
-				     unsigned long attrs)
-{
-	consistent_free(size, vaddr);
-}
-
-static inline void __dma_sync(unsigned long paddr,
-			      size_t size, enum dma_data_direction direction)
+static void __dma_sync(struct device *dev, phys_addr_t paddr, size_t size,
+		enum dma_data_direction direction)
 {
 	switch (direction) {
 	case DMA_TO_DEVICE:
@@ -45,113 +31,21 @@ static inline void __dma_sync(unsigned long paddr,
 	}
 }
 
-static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl,
-			     int nents, enum dma_data_direction direction,
-			     unsigned long attrs)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	struct scatterlist *sg;
-	int i;
-
-	/* FIXME this part of code is untested */
-	for_each_sg(sgl, sg, nents, i) {
-		sg->dma_address = sg_phys(sg);
-
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		__dma_sync(sg_phys(sg), sg->length, direction);
-	}
-
-	return nents;
-}
-
-static inline dma_addr_t dma_nommu_map_page(struct device *dev,
-					     struct page *page,
-					     unsigned long offset,
-					     size_t size,
-					     enum dma_data_direction direction,
-					     unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		__dma_sync(page_to_phys(page) + offset, size, direction);
-	return page_to_phys(page) + offset;
+	__dma_sync(dev, paddr, size, dir);
 }
 
-static inline void dma_nommu_unmap_page(struct device *dev,
-					 dma_addr_t dma_address,
-					 size_t size,
-					 enum dma_data_direction direction,
-					 unsigned long attrs)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-/* There is not necessary to do cache cleanup
- *
- * phys_to_virt is here because in __dma_sync_page is __virt_to_phys and
- * dma_address is physical address
- */
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		__dma_sync(dma_address, size, direction);
+	__dma_sync(dev, paddr, size, dir);
 }
 
-static inline void
-dma_nommu_sync_single_for_cpu(struct device *dev,
-			       dma_addr_t dma_handle, size_t size,
-			       enum dma_data_direction direction)
-{
-	/*
-	 * It's pointless to flush the cache as the memory segment
-	 * is given to the CPU
-	 */
-
-	if (direction == DMA_FROM_DEVICE)
-		__dma_sync(dma_handle, size, direction);
-}
-
-static inline void
-dma_nommu_sync_single_for_device(struct device *dev,
-				  dma_addr_t dma_handle, size_t size,
-				  enum dma_data_direction direction)
-{
-	/*
-	 * It's pointless to invalidate the cache if the device isn't
-	 * supposed to write to the relevant region
-	 */
-
-	if (direction == DMA_TO_DEVICE)
-		__dma_sync(dma_handle, size, direction);
-}
-
-static inline void
-dma_nommu_sync_sg_for_cpu(struct device *dev,
-			   struct scatterlist *sgl, int nents,
-			   enum dma_data_direction direction)
-{
-	struct scatterlist *sg;
-	int i;
-
-	/* FIXME this part of code is untested */
-	if (direction == DMA_FROM_DEVICE)
-		for_each_sg(sgl, sg, nents, i)
-			__dma_sync(sg->dma_address, sg->length, direction);
-}
-
-static inline void
-dma_nommu_sync_sg_for_device(struct device *dev,
-			      struct scatterlist *sgl, int nents,
-			      enum dma_data_direction direction)
-{
-	struct scatterlist *sg;
-	int i;
-
-	/* FIXME this part of code is untested */
-	if (direction == DMA_TO_DEVICE)
-		for_each_sg(sgl, sg, nents, i)
-			__dma_sync(sg->dma_address, sg->length, direction);
-}
-
-static
-int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
-			     void *cpu_addr, dma_addr_t handle, size_t size,
-			     unsigned long attrs)
+int arch_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+		void *cpu_addr, dma_addr_t handle, size_t size,
+		unsigned long attrs)
 {
 #ifdef CONFIG_MMU
 	unsigned long user_count = vma_pages(vma);
@@ -170,17 +64,3 @@ int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 	return -ENXIO;
 #endif
 }
-
-const struct dma_map_ops dma_nommu_ops = {
-	.alloc			= dma_nommu_alloc_coherent,
-	.free			= dma_nommu_free_coherent,
-	.mmap			= dma_nommu_mmap_coherent,
-	.map_sg			= dma_nommu_map_sg,
-	.map_page		= dma_nommu_map_page,
-	.unmap_page		= dma_nommu_unmap_page,
-	.sync_single_for_cpu	= dma_nommu_sync_single_for_cpu,
-	.sync_single_for_device	= dma_nommu_sync_single_for_device,
-	.sync_sg_for_cpu	= dma_nommu_sync_sg_for_cpu,
-	.sync_sg_for_device	= dma_nommu_sync_sg_for_device,
-};
-EXPORT_SYMBOL(dma_nommu_ops);
diff --git a/arch/microblaze/mm/consistent.c b/arch/microblaze/mm/consistent.c
index b06c3a7faf20..b9a9c8c3397b 100644
--- a/arch/microblaze/mm/consistent.c
+++ b/arch/microblaze/mm/consistent.c
@@ -33,6 +33,7 @@
 #include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/gfp.h>
+#include <linux/dma-noncoherent.h>
 
 #include <asm/pgalloc.h>
 #include <linux/io.h>
@@ -59,7 +60,8 @@
  * uncached region.  This will no doubt cause big problems if memory allocated
  * here is not also freed properly. -- JW
  */
-void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	unsigned long order, vaddr;
 	void *ret;
@@ -154,7 +156,6 @@ void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle)
 
 	return ret;
 }
-EXPORT_SYMBOL(consistent_alloc);
 
 #ifdef CONFIG_MMU
 static pte_t *consistent_virt_to_pte(void *vaddr)
@@ -178,7 +179,8 @@ unsigned long consistent_virt_to_pfn(void *vaddr)
 /*
  * free page(s) as defined by the above mapping.
  */
-void consistent_free(size_t size, void *vaddr)
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_addr, unsigned long attrs)
 {
 	struct page *page;
 
@@ -218,7 +220,6 @@ void consistent_free(size_t size, void *vaddr)
 	flush_tlb_all();
 #endif
 }
-EXPORT_SYMBOL(consistent_free);
 
 /*
  * make an area consistent.
-- 
2.17.0



From - Thu Nov 08 21:41:19 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 16/22] sh: simplify get_arch_dma_ops
Date: Fri, 20 Apr 2018 10:03:07 +0200
Lines: 91
Approved: news@gmane.org
Message-ID: <20180420080313.18796-17-hch@lst.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2746070>

Remove the indirection through the dma_ops variable, and just return
nommu_dma_ops directly from get_arch_dma_ops.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sh/include/asm/dma-mapping.h |  5 ++---
 arch/sh/kernel/dma-nommu.c        |  8 +-------
 arch/sh/mm/consistent.c           |  3 ---
 arch/sh/mm/init.c                 | 10 ----------
 4 files changed, 3 insertions(+), 23 deletions(-)

diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 41167931e5d9..149e71f95be7 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -2,12 +2,11 @@
 #ifndef __ASM_SH_DMA_MAPPING_H
 #define __ASM_SH_DMA_MAPPING_H
 
-extern const struct dma_map_ops *dma_ops;
-extern void no_iommu_init(void);
+extern const struct dma_map_ops nommu_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	return dma_ops;
+	return &nommu_dma_ops;
 }
 
 extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 2077cfe73cc6..c0fff676e2e4 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -76,10 +76,4 @@ const struct dma_map_ops nommu_dma_ops = {
 	.sync_sg_for_device	= nommu_sync_sg_for_device,
 #endif
 };
-
-void __init no_iommu_init(void)
-{
-	if (dma_ops)
-		return;
-	dma_ops = &nommu_dma_ops;
-}
+EXPORT_SYMBOL(nommu_dma_ops);
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index a7bff3f29c2b..af2f28572119 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -20,9 +20,6 @@
 #include <asm/cacheflush.h>
 #include <asm/addrspace.h>
 
-const struct dma_map_ops *dma_ops;
-EXPORT_SYMBOL(dma_ops);
-
 void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 				 dma_addr_t *dma_handle, gfp_t gfp,
 				 unsigned long attrs)
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index ce0bbaa7e404..32e09f03e6bf 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -395,22 +395,12 @@ void __init paging_init(void)
 	free_area_init_nodes(max_zone_pfns);
 }
 
-/*
- * Early initialization for any I/O MMUs we might have.
- */
-static void __init iommu_init(void)
-{
-	no_iommu_init();
-}
-
 unsigned int mem_init_done = 0;
 
 void __init mem_init(void)
 {
 	pg_data_t *pgdat;
 
-	iommu_init();
-
 	high_memory = NULL;
 	for_each_online_pgdat(pgdat)
 		high_memory = max_t(void *, high_memory,
-- 
2.17.0



From - Thu Nov 08 21:41:20 2018
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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 18/22] sh: use dma_direct_ops for the CONFIG_DMA_COHERENT case
Date: Fri, 20 Apr 2018 10:03:09 +0200
Lines: 95
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2746071>

This is a slight change in behavior as we avoid the detour through the
virtual mapping for the coherent allocator, but if this CPU really is
coherent that should be the right thing to do.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sh/Kconfig                   | 1 +
 arch/sh/include/asm/dma-mapping.h | 4 ++++
 arch/sh/kernel/Makefile           | 4 ++--
 arch/sh/kernel/dma-nommu.c        | 4 ----
 4 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 9417f70e008e..23e7432302b0 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -158,6 +158,7 @@ config SWAP_IO_SPACE
 	bool
 
 config DMA_COHERENT
+	select DMA_DIRECT_OPS
 	bool
 
 config DMA_NONCOHERENT
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 149e71f95be7..1ebc6a4eb1c5 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -6,7 +6,11 @@ extern const struct dma_map_ops nommu_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
+#ifdef CONFIG_DMA_NONCOHERENT
 	return &nommu_dma_ops;
+#else
+	return &dma_direct_ops;
+#endif
 }
 
 extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index dc80041f7363..cb5f1bfb52de 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -12,7 +12,7 @@ endif
 
 CFLAGS_REMOVE_return_address.o = -pg
 
-obj-y	:= debugtraps.o dma-nommu.o dumpstack.o 		\
+obj-y	:= debugtraps.o dumpstack.o 		\
 	   idle.o io.o irq.o irq_$(BITS).o kdebugfs.o			\
 	   machvec.o nmi_debug.o process.o				\
 	   process_$(BITS).o ptrace.o ptrace_$(BITS).o			\
@@ -45,7 +45,7 @@ obj-$(CONFIG_DUMP_CODE)		+= disassemble.o
 obj-$(CONFIG_HIBERNATION)	+= swsusp.o
 obj-$(CONFIG_DWARF_UNWINDER)	+= dwarf.o
 obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_callchain.o
-
+obj-$(CONFIG_DMA_NONCOHERENT)	+= dma-nommu.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)		+= hw_breakpoint.o
 
 ccflags-y := -Werror
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index c0fff676e2e4..442922a9f8c0 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -48,7 +48,6 @@ static int nommu_map_sg(struct device *dev, struct scatterlist *sg,
 	return nents;
 }
 
-#ifdef CONFIG_DMA_NONCOHERENT
 static void nommu_sync_single_for_device(struct device *dev, dma_addr_t addr,
 			      size_t size, enum dma_data_direction dir)
 {
@@ -64,16 +63,13 @@ static void nommu_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
 	for_each_sg(sg, s, nelems, i)
 		sh_sync_dma_for_device(sg_virt(s), s->length, dir);
 }
-#endif
 
 const struct dma_map_ops nommu_dma_ops = {
 	.alloc			= dma_generic_alloc_coherent,
 	.free			= dma_generic_free_coherent,
 	.map_page		= nommu_map_page,
 	.map_sg			= nommu_map_sg,
-#ifdef CONFIG_DMA_NONCOHERENT
 	.sync_single_for_device	= nommu_sync_single_for_device,
 	.sync_sg_for_device	= nommu_sync_sg_for_device,
-#endif
 };
 EXPORT_SYMBOL(nommu_dma_ops);
-- 
2.17.0



From - Thu Nov 08 21:41:20 2018
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Subject: [PATCH 20/22] xtensa: use generic dma_noncoherent_ops
Date: Fri, 20 Apr 2018 10:03:11 +0200
Lines: 278
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2746072>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/xtensa/Kconfig                   |   3 +
 arch/xtensa/include/asm/Kbuild        |   1 +
 arch/xtensa/include/asm/dma-mapping.h |  26 ------
 arch/xtensa/kernel/pci-dma.c          | 130 +++-----------------------
 4 files changed, 19 insertions(+), 141 deletions(-)
 delete mode 100644 arch/xtensa/include/asm/dma-mapping.h

diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index c921e8bccdc8..6035845f30a7 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -5,11 +5,14 @@ config ZONE_DMA
 config XTENSA
 	def_bool y
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_WANT_FRAME_POINTERS
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select BUILDTIME_EXTABLE_SORT
 	select CLONE_BACKWARDS
 	select COMMON_CLK
+	select DMA_NONCOHERENT_OPS
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_IRQ_SHOW
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index 436b20337168..a8d6cd3bee4b 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -2,6 +2,7 @@ generic-y += bug.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma-contiguous.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
deleted file mode 100644
index 44098800dad7..000000000000
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2003 - 2005 Tensilica Inc.
- * Copyright (C) 2015 Cadence Design Systems Inc.
- */
-
-#ifndef _XTENSA_DMA_MAPPING_H
-#define _XTENSA_DMA_MAPPING_H
-
-#include <asm/cache.h>
-#include <asm/io.h>
-
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-
-extern const struct dma_map_ops xtensa_dma_map_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &xtensa_dma_map_ops;
-}
-
-#endif	/* _XTENSA_DMA_MAPPING_H */
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index 392b4a80ebc2..a83d60e92908 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -16,26 +16,24 @@
  */
 
 #include <linux/dma-contiguous.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/dma-direct.h>
 #include <linux/gfp.h>
 #include <linux/highmem.h>
 #include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/string.h>
 #include <linux/types.h>
 #include <asm/cacheflush.h>
 #include <asm/io.h>
 
-static void do_cache_op(dma_addr_t dma_handle, size_t size,
+static void do_cache_op(phys_addr_t paddr, size_t size,
 			void (*fn)(unsigned long, unsigned long))
 {
-	unsigned long off = dma_handle & (PAGE_SIZE - 1);
-	unsigned long pfn = PFN_DOWN(dma_handle);
+	unsigned long off = paddr & (PAGE_SIZE - 1);
+	unsigned long pfn = PFN_DOWN(paddr);
 	struct page *page = pfn_to_page(pfn);
 
 	if (!PageHighMem(page))
-		fn((unsigned long)bus_to_virt(dma_handle), size);
+		fn((unsigned long)phys_to_virt(paddr), size);
 	else
 		while (size > 0) {
 			size_t sz = min_t(size_t, size, PAGE_SIZE - off);
@@ -49,14 +47,13 @@ static void do_cache_op(dma_addr_t dma_handle, size_t size,
 		}
 }
 
-static void xtensa_sync_single_for_cpu(struct device *dev,
-				       dma_addr_t dma_handle, size_t size,
-				       enum dma_data_direction dir)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
 	switch (dir) {
 	case DMA_BIDIRECTIONAL:
 	case DMA_FROM_DEVICE:
-		do_cache_op(dma_handle, size, __invalidate_dcache_range);
+		do_cache_op(paddr, size, __invalidate_dcache_range);
 		break;
 
 	case DMA_NONE:
@@ -68,15 +65,14 @@ static void xtensa_sync_single_for_cpu(struct device *dev,
 	}
 }
 
-static void xtensa_sync_single_for_device(struct device *dev,
-					  dma_addr_t dma_handle, size_t size,
-					  enum dma_data_direction dir)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
 	switch (dir) {
 	case DMA_BIDIRECTIONAL:
 	case DMA_TO_DEVICE:
 		if (XCHAL_DCACHE_IS_WRITEBACK)
-			do_cache_op(dma_handle, size, __flush_dcache_range);
+			do_cache_op(paddr, size, __flush_dcache_range);
 		break;
 
 	case DMA_NONE:
@@ -88,40 +84,13 @@ static void xtensa_sync_single_for_device(struct device *dev,
 	}
 }
 
-static void xtensa_sync_sg_for_cpu(struct device *dev,
-				   struct scatterlist *sg, int nents,
-				   enum dma_data_direction dir)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		xtensa_sync_single_for_cpu(dev, sg_dma_address(s),
-					   sg_dma_len(s), dir);
-	}
-}
-
-static void xtensa_sync_sg_for_device(struct device *dev,
-				      struct scatterlist *sg, int nents,
-				      enum dma_data_direction dir)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		xtensa_sync_single_for_device(dev, sg_dma_address(s),
-					      sg_dma_len(s), dir);
-	}
-}
-
 /*
  * Note: We assume that the full memory space is always mapped to 'kseg'
  *	 Otherwise we have to use page attributes (not implemented).
  */
 
-static void *xtensa_dma_alloc(struct device *dev, size_t size,
-			      dma_addr_t *handle, gfp_t flag,
-			      unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+		gfp_t flag, unsigned long attrs)
 {
 	unsigned long ret;
 	unsigned long uncached;
@@ -171,8 +140,8 @@ static void *xtensa_dma_alloc(struct device *dev, size_t size,
 	return (void *)uncached;
 }
 
-static void xtensa_dma_free(struct device *dev, size_t size, void *vaddr,
-			    dma_addr_t dma_handle, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, unsigned long attrs)
 {
 	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	unsigned long addr = (unsigned long)vaddr;
@@ -192,72 +161,3 @@ static void xtensa_dma_free(struct device *dev, size_t size, void *vaddr,
 	if (!dma_release_from_contiguous(dev, page, count))
 		__free_pages(page, get_order(size));
 }
-
-static dma_addr_t xtensa_map_page(struct device *dev, struct page *page,
-				  unsigned long offset, size_t size,
-				  enum dma_data_direction dir,
-				  unsigned long attrs)
-{
-	dma_addr_t dma_handle = page_to_phys(page) + offset;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		xtensa_sync_single_for_device(dev, dma_handle, size, dir);
-
-	return dma_handle;
-}
-
-static void xtensa_unmap_page(struct device *dev, dma_addr_t dma_handle,
-			      size_t size, enum dma_data_direction dir,
-			      unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		xtensa_sync_single_for_cpu(dev, dma_handle, size, dir);
-}
-
-static int xtensa_map_sg(struct device *dev, struct scatterlist *sg,
-			 int nents, enum dma_data_direction dir,
-			 unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		s->dma_address = xtensa_map_page(dev, sg_page(s), s->offset,
-						 s->length, dir, attrs);
-	}
-	return nents;
-}
-
-static void xtensa_unmap_sg(struct device *dev,
-			    struct scatterlist *sg, int nents,
-			    enum dma_data_direction dir,
-			    unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		xtensa_unmap_page(dev, sg_dma_address(s),
-				  sg_dma_len(s), dir, attrs);
-	}
-}
-
-int xtensa_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return 0;
-}
-
-const struct dma_map_ops xtensa_dma_map_ops = {
-	.alloc = xtensa_dma_alloc,
-	.free = xtensa_dma_free,
-	.map_page = xtensa_map_page,
-	.unmap_page = xtensa_unmap_page,
-	.map_sg = xtensa_map_sg,
-	.unmap_sg = xtensa_unmap_sg,
-	.sync_single_for_cpu = xtensa_sync_single_for_cpu,
-	.sync_single_for_device = xtensa_sync_single_for_device,
-	.sync_sg_for_cpu = xtensa_sync_sg_for_cpu,
-	.sync_sg_for_device = xtensa_sync_sg_for_device,
-	.mapping_error = xtensa_dma_mapping_error,
-};
-EXPORT_SYMBOL(xtensa_dma_map_ops);
-- 
2.17.0



From - Thu Nov 08 21:41:20 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 22/22] parisc: use generic dma_noncoherent_ops
Date: Fri, 20 Apr 2018 10:03:13 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2746073>

Switch to the generic noncoherent direct mapping implementation.

Parisc previously had two different non-coherent dma ops implementation
that just different in the way coherent allocations were handled or not
handled.  The different behavior is not selected at runtime in the
arch_dma_alloc and arch_dma_free routines.  The non-coherent allocation
in the pcx cases now uses the dma_direct helpers that are a little more
sophisticated and used by a lot of other architectures.

Fix sync_single_for_cpu to do skip the cache flush unless the transfer
is to the device to match the more tested unmap_single path which should
have the same cache coherency implications.

This also now consistenly uses flush_kernel_dcache_range for cache
flushing while previously some of the SG based operations used
flush_kernel_vmap_range instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/parisc/Kconfig                   |   4 +
 arch/parisc/include/asm/dma-mapping.h |   5 -
 arch/parisc/kernel/pci-dma.c          | 181 ++++----------------------
 arch/parisc/kernel/setup.c            |   8 +-
 arch/parisc/mm/init.c                 |  11 +-
 5 files changed, 35 insertions(+), 174 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 47047f0cbe35..80166a1cbcb7 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -188,6 +188,10 @@ config PA20
 config PA11
 	def_bool y
 	depends on PA7000 || PA7100LC || PA7200 || PA7300LC
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select DMA_NONCOHERENT_OPS
+	select DMA_NONCOHERENT_CACHE_SYNC
 
 config PREFETCH
 	def_bool y
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 01e1fc057c83..44a9f97194aa 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -21,11 +21,6 @@
 ** flush/purge and allocate "regular" cacheable pages for everything.
 */
 
-#ifdef CONFIG_PA11
-extern const struct dma_map_ops pcxl_dma_ops;
-extern const struct dma_map_ops pcx_dma_ops;
-#endif
-
 extern const struct dma_map_ops *hppa_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 91bc0cac03a1..235e2e53959e 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -21,13 +21,12 @@
 #include <linux/init.h>
 #include <linux/gfp.h>
 #include <linux/mm.h>
-#include <linux/pci.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/string.h>
 #include <linux/types.h>
-#include <linux/scatterlist.h>
-#include <linux/export.h>
+#include <linux/dma-direct.h>
+#include <linux/dma-noncoherent.h>
 
 #include <asm/cacheflush.h>
 #include <asm/dma.h>    /* for DMA_CHUNK_SIZE */
@@ -447,178 +446,48 @@ static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
 	free_pages((unsigned long)__va(dma_handle), order);
 }
 
-static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
-		unsigned long offset, size_t size,
-		enum dma_data_direction direction, unsigned long attrs)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	void *addr = page_address(page) + offset;
-	BUG_ON(direction == DMA_NONE);
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		flush_kernel_dcache_range((unsigned long) addr, size);
-
-	return virt_to_phys(addr);
+	flush_kernel_dcache_range((unsigned long)phys_to_virt(paddr), size);
 }
 
-static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
-		size_t size, enum dma_data_direction direction,
-		unsigned long attrs)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	BUG_ON(direction == DMA_NONE);
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return;
-
-	if (direction == DMA_TO_DEVICE)
+	if (dir == DMA_TO_DEVICE)
 		return;
 
 	/*
-	 * For PCI_DMA_FROMDEVICE this flush is not necessary for the
+	 * For DMA_FROM_DEVICE this flush is not necessary for the
 	 * simple map/unmap case. However, it IS necessary if if
-	 * pci_dma_sync_single_* has been called and the buffer reused.
+	 * dma_sync_single_* has been called and the buffer reused.
 	 */
 
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle), size);
-}
-
-static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	int i;
-	struct scatterlist *sg;
-
-	BUG_ON(direction == DMA_NONE);
-
-	for_each_sg(sglist, sg, nents, i) {
-		unsigned long vaddr = (unsigned long)sg_virt(sg);
-
-		sg_dma_address(sg) = (dma_addr_t) virt_to_phys(vaddr);
-		sg_dma_len(sg) = sg->length;
-
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		flush_kernel_dcache_range(vaddr, sg->length);
-	}
-	return nents;
+	flush_kernel_dcache_range((unsigned long)phys_to_virt(paddr), size);
 }
 
-static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	int i;
-	struct scatterlist *sg;
-
-	BUG_ON(direction == DMA_NONE);
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return;
-
-	if (direction == DMA_TO_DEVICE)
-		return;
-
-	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
-
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
-}
-
-static void pa11_dma_sync_single_for_cpu(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
-			size);
-}
-
-static void pa11_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
-			size);
-}
-
-static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
-{
-	int i;
-	struct scatterlist *sg;
-
-	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
-
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
-}
-
-static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
-{
-	int i;
-	struct scatterlist *sg;
-
-	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
-
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
-}
-
-static void pa11_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	       enum dma_data_direction direction)
 {
 	flush_kernel_dcache_range((unsigned long)vaddr, size);
 }
 
-const struct dma_map_ops pcxl_dma_ops = {
-	.alloc =		pa11_dma_alloc,
-	.free =			pa11_dma_free,
-	.map_page =		pa11_dma_map_page,
-	.unmap_page =		pa11_dma_unmap_page,
-	.map_sg =		pa11_dma_map_sg,
-	.unmap_sg =		pa11_dma_unmap_sg,
-	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
-	.sync_single_for_device = pa11_dma_sync_single_for_device,
-	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
-	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
-	.cache_sync =		pa11_dma_cache_sync,
-};
-
-static void *pcx_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
-	void *addr;
-
-	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0)
-		return NULL;
-
-	addr = (void *)__get_free_pages(flag, get_order(size));
-	if (addr)
-		*dma_handle = (dma_addr_t)virt_to_phys(addr);
-
-	return addr;
+	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl)
+		return pa11_dma_alloc(dev, size, dma_handle, gfp, attrs);
+	if (attrs & DMA_ATTR_NON_CONSISTENT)
+		return dma_direct_alloc(dev, size, dma_handle, gfp, attrs);
+	return NULL;
 }
 
-static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t iova, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t dma_addr, unsigned long attrs)
 {
-	free_pages((unsigned long)vaddr, get_order(size));
-	return;
+	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl)
+		pa11_dma_free(dev, size, cpu_addr, dma_addr, attrs);
+	else
+		dma_direct_free(dev, size, cpu_addr, dma_addr, attrs);
 }
-
-const struct dma_map_ops pcx_dma_ops = {
-	.alloc =		pcx_dma_alloc,
-	.free =			pcx_dma_free,
-	.map_page =		pa11_dma_map_page,
-	.unmap_page =		pa11_dma_unmap_page,
-	.map_sg =		pa11_dma_map_sg,
-	.unmap_sg =		pa11_dma_unmap_sg,
-	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
-	.sync_single_for_device = pa11_dma_sync_single_for_device,
-	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
-	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
-	.cache_sync =		pa11_dma_cache_sync,
-};
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 8d3a7b80ac42..4e87c35c22b7 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -97,14 +97,12 @@ void __init dma_ops_init(void)
 		panic(	"PA-RISC Linux currently only supports machines that conform to\n"
 			"the PA-RISC 1.1 or 2.0 architecture specification.\n");
 
-	case pcxs:
-	case pcxt:
-		hppa_dma_ops = &pcx_dma_ops;
-		break;
 	case pcxl2:
 		pa7300lc_init();
 	case pcxl: /* falls through */
-		hppa_dma_ops = &pcxl_dma_ops;
+	case pcxs:
+	case pcxt:
+		hppa_dma_ops = &dma_noncoherent_ops;
 		break;
 	default:
 		break;
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index cab32ee824d2..4ad91c28ecbe 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -19,7 +19,6 @@
 #include <linux/gfp.h>
 #include <linux/delay.h>
 #include <linux/init.h>
-#include <linux/pci.h>		/* for hppa_dma_ops and pcxl_dma_ops */
 #include <linux/initrd.h>
 #include <linux/swap.h>
 #include <linux/unistd.h>
@@ -616,17 +615,13 @@ void __init mem_init(void)
 	free_all_bootmem();
 
 #ifdef CONFIG_PA11
-	if (hppa_dma_ops == &pcxl_dma_ops) {
+	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl) {
 		pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
 		parisc_vmalloc_start = SET_MAP_OFFSET(pcxl_dma_start
 						+ PCXL_DMA_MAP_SIZE);
-	} else {
-		pcxl_dma_start = 0;
-		parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
-	}
-#else
-	parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
+	} else
 #endif
+		parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
 
 	mem_init_print_info(NULL);
 
-- 
2.17.0



From - Thu Nov 08 21:41:20 2018
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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 04/22] alpha: use dma_direct_ops for jensen
Date: Fri, 20 Apr 2018 10:02:55 +0200
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Cc: linux-arch@vger.kernel.org, linux-xtensa@linux-xtensa.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3808>

The generic dma_direct implementation does the same thing as the alpha
pci-noop implementation, just with more bells and whistles.  And unlike
the current code it at least has a theoretical chance to actually compile.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/alpha/Kconfig                   |  1 +
 arch/alpha/include/asm/dma-mapping.h |  4 ++++
 arch/alpha/kernel/pci-noop.c         | 33 ----------------------------
 3 files changed, 5 insertions(+), 33 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index aa7df1a36fd0..94af0c7f494a 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -204,6 +204,7 @@ config ALPHA_EIGER
 config ALPHA_JENSEN
 	bool "Jensen"
 	depends on BROKEN
+	select DMA_DIRECT_OPS
 	help
 	  DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
 	  of the first-generation Alpha systems. A number of these systems
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index b78f61f20796..76ce923ecca1 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -6,7 +6,11 @@ extern const struct dma_map_ops *dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
+#ifdef CONFIG_ALPHA_JENSEN
+	return &dma_direct_ops;
+#else
 	return dma_ops;
+#endif
 }
 
 #endif	/* _ALPHA_DMA_MAPPING_H */
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index b6ebb65127a8..c7c5879869d3 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -102,36 +102,3 @@ SYSCALL_DEFINE5(pciconfig_write, unsigned long, bus, unsigned long, dfn,
 	else
 		return -ENODEV;
 }
-
-static void *alpha_noop_alloc_coherent(struct device *dev, size_t size,
-				       dma_addr_t *dma_handle, gfp_t gfp,
-				       unsigned long attrs)
-{
-	void *ret;
-
-	if (!dev || *dev->dma_mask >= 0xffffffffUL)
-		gfp &= ~GFP_DMA;
-	ret = (void *)__get_free_pages(gfp, get_order(size));
-	if (ret) {
-		memset(ret, 0, size);
-		*dma_handle = virt_to_phys(ret);
-	}
-	return ret;
-}
-
-static int alpha_noop_supported(struct device *dev, u64 mask)
-{
-	return mask < 0x00ffffffUL ? 0 : 1;
-}
-
-const struct dma_map_ops alpha_noop_ops = {
-	.alloc			= alpha_noop_alloc_coherent,
-	.free			= dma_noop_free_coherent,
-	.map_page		= dma_noop_map_page,
-	.map_sg			= dma_noop_map_sg,
-	.mapping_error		= dma_noop_mapping_error,
-	.dma_supported		= alpha_noop_supported,
-};
-
-const struct dma_map_ops *dma_ops = &alpha_noop_ops;
-EXPORT_SYMBOL(dma_ops);
-- 
2.17.0

From - Thu Nov 08 21:41:20 2018
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Subject: [PATCH 21/22] sparc: use generic dma_noncoherent_ops
Date: Fri, 20 Apr 2018 10:03:12 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2746079>

Switch to the generic noncoherent direct mapping implementation.

This removes the previous sync_single_for_device implementation, which
looks bogus given that no syncing is happening in the similar but more
important map_single case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sparc/Kconfig                   |   2 +
 arch/sparc/include/asm/dma-mapping.h |   5 +-
 arch/sparc/kernel/ioport.c           | 151 ++-------------------------
 3 files changed, 14 insertions(+), 144 deletions(-)

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index c1cfc17eb504..5680eece3014 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -49,6 +49,8 @@ config SPARC
 
 config SPARC32
 	def_bool !64BIT
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select DMA_NONCOHERENT_OPS
 	select GENERIC_ATOMIC64
 	select CLZ_TAB
 	select HAVE_UID16
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 12ae33daf52f..e17566376934 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -7,7 +7,6 @@
 #include <linux/dma-debug.h>
 
 extern const struct dma_map_ops *dma_ops;
-extern const struct dma_map_ops pci32_dma_ops;
 
 extern struct bus_type pci_bus_type;
 
@@ -15,11 +14,11 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 #ifdef CONFIG_SPARC_LEON
 	if (sparc_cpu_model == sparc_leon)
-		return &pci32_dma_ops;
+		return &dma_noncoherent_ops;
 #endif
 #if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
 	if (bus == &pci_bus_type)
-		return &pci32_dma_ops;
+		return &dma_noncoherent_ops;
 #endif
 	return dma_ops;
 }
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 3bcef9ce74df..7954512c42e7 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -38,6 +38,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/scatterlist.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/of_device.h>
 
 #include <asm/io.h>
@@ -434,9 +435,8 @@ arch_initcall(sparc_register_ioport);
 /* Allocate and map kernel buffer using consistent mode DMA for a device.
  * hwdev should be valid struct pci_dev pointer for PCI devices.
  */
-static void *pci32_alloc_coherent(struct device *dev, size_t len,
-				  dma_addr_t *pba, gfp_t gfp,
-				  unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t len, dma_addr_t *pba, gfp_t gfp,
+		unsigned long attrs)
 {
 	unsigned long len_total = PAGE_ALIGN(len);
 	void *va;
@@ -488,8 +488,8 @@ static void *pci32_alloc_coherent(struct device *dev, size_t len,
  * References to the memory and mappings associated with cpu_addr/dma_addr
  * past this call are illegal.
  */
-static void pci32_free_coherent(struct device *dev, size_t n, void *p,
-				dma_addr_t ba, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t n, void *p, dma_addr_t ba,
+		unsigned long attrs)
 {
 	struct resource *res;
 
@@ -519,146 +519,15 @@ static void pci32_free_coherent(struct device *dev, size_t n, void *p,
 	free_pages((unsigned long)phys_to_virt(ba), get_order(n));
 }
 
-/*
- * Same as pci_map_single, but with pages.
- */
-static dma_addr_t pci32_map_page(struct device *dev, struct page *page,
-				 unsigned long offset, size_t size,
-				 enum dma_data_direction dir,
-				 unsigned long attrs)
-{
-	/* IIep is write-through, not flushing. */
-	return page_to_phys(page) + offset;
-}
-
-static void pci32_unmap_page(struct device *dev, dma_addr_t ba, size_t size,
-			     enum dma_data_direction dir, unsigned long attrs)
-{
-	if (dir != PCI_DMA_TODEVICE && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		dma_make_coherent(ba, PAGE_ALIGN(size));
-}
-
-/* Map a set of buffers described by scatterlist in streaming
- * mode for DMA.  This is the scatter-gather version of the
- * above pci_map_single interface.  Here the scatter gather list
- * elements are each tagged with the appropriate dma address
- * and length.  They are obtained via sg_dma_{address,length}(SG).
- *
- * NOTE: An implementation may be able to use a smaller number of
- *       DMA address/length pairs than there are SG table elements.
- *       (for example via virtual mapping capabilities)
- *       The routine returns the number of addr/length pairs actually
- *       used, at most nents.
- *
- * Device ownership issues as mentioned above for pci_map_single are
- * the same here.
- */
-static int pci32_map_sg(struct device *device, struct scatterlist *sgl,
-			int nents, enum dma_data_direction dir,
-			unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int n;
-
-	/* IIep is write-through, not flushing. */
-	for_each_sg(sgl, sg, nents, n) {
-		sg->dma_address = sg_phys(sg);
-		sg->dma_length = sg->length;
-	}
-	return nents;
-}
-
-/* Unmap a set of streaming mode DMA translations.
- * Again, cpu read rules concerning calls here are the same as for
- * pci_unmap_single() above.
- */
-static void pci32_unmap_sg(struct device *dev, struct scatterlist *sgl,
-			   int nents, enum dma_data_direction dir,
-			   unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int n;
-
-	if (dir != PCI_DMA_TODEVICE && !(attrs & DMA_ATTR_SKIP_CPU_SYNC)) {
-		for_each_sg(sgl, sg, nents, n) {
-			dma_make_coherent(sg_phys(sg), PAGE_ALIGN(sg->length));
-		}
-	}
-}
+/* IIep is write-through, not flushing on cpu to device transfer. */
 
-/* Make physical memory consistent for a single
- * streaming mode DMA translation before or after a transfer.
- *
- * If you perform a pci_map_single() but wish to interrogate the
- * buffer using the cpu, yet do not wish to teardown the PCI dma
- * mapping, you must call this function before doing so.  At the
- * next point you give the PCI dma address back to the card, you
- * must first perform a pci_dma_sync_for_device, and then the
- * device again owns the buffer.
- */
-static void pci32_sync_single_for_cpu(struct device *dev, dma_addr_t ba,
-				      size_t size, enum dma_data_direction dir)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	if (dir != PCI_DMA_TODEVICE) {
-		dma_make_coherent(ba, PAGE_ALIGN(size));
-	}
-}
-
-static void pci32_sync_single_for_device(struct device *dev, dma_addr_t ba,
-					 size_t size, enum dma_data_direction dir)
-{
-	if (dir != PCI_DMA_TODEVICE) {
-		dma_make_coherent(ba, PAGE_ALIGN(size));
-	}
+	if (dir != PCI_DMA_TODEVICE)
+		dma_make_coherent(paddr, PAGE_ALIGN(size));
 }
 
-/* Make physical memory consistent for a set of streaming
- * mode DMA translations after a transfer.
- *
- * The same as pci_dma_sync_single_* but for a scatter-gather list,
- * same rules and usage.
- */
-static void pci32_sync_sg_for_cpu(struct device *dev, struct scatterlist *sgl,
-				  int nents, enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int n;
-
-	if (dir != PCI_DMA_TODEVICE) {
-		for_each_sg(sgl, sg, nents, n) {
-			dma_make_coherent(sg_phys(sg), PAGE_ALIGN(sg->length));
-		}
-	}
-}
-
-static void pci32_sync_sg_for_device(struct device *device, struct scatterlist *sgl,
-				     int nents, enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int n;
-
-	if (dir != PCI_DMA_TODEVICE) {
-		for_each_sg(sgl, sg, nents, n) {
-			dma_make_coherent(sg_phys(sg), PAGE_ALIGN(sg->length));
-		}
-	}
-}
-
-/* note: leon re-uses pci32_dma_ops */
-const struct dma_map_ops pci32_dma_ops = {
-	.alloc			= pci32_alloc_coherent,
-	.free			= pci32_free_coherent,
-	.map_page		= pci32_map_page,
-	.unmap_page		= pci32_unmap_page,
-	.map_sg			= pci32_map_sg,
-	.unmap_sg		= pci32_unmap_sg,
-	.sync_single_for_cpu	= pci32_sync_single_for_cpu,
-	.sync_single_for_device	= pci32_sync_single_for_device,
-	.sync_sg_for_cpu	= pci32_sync_sg_for_cpu,
-	.sync_sg_for_device	= pci32_sync_sg_for_device,
-};
-EXPORT_SYMBOL(pci32_dma_ops);
-
 const struct dma_map_ops *dma_ops = &sbus_dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
-- 
2.17.0



From - Thu Nov 08 21:41:20 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 05/22] alpha: simplify get_arch_dma_ops
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Remove the dma_ops indirection.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/alpha/include/asm/dma-mapping.h | 4 ++--
 arch/alpha/kernel/pci_iommu.c        | 4 +---
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index 76ce923ecca1..8beeafd4f68e 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -2,14 +2,14 @@
 #ifndef _ALPHA_DMA_MAPPING_H
 #define _ALPHA_DMA_MAPPING_H
 
-extern const struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops alpha_pci_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 #ifdef CONFIG_ALPHA_JENSEN
 	return &dma_direct_ops;
 #else
-	return dma_ops;
+	return &alpha_pci_ops;
 #endif
 }
 
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 83b34b9188ea..6923b0d9c1e1 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -950,6 +950,4 @@ const struct dma_map_ops alpha_pci_ops = {
 	.mapping_error		= alpha_pci_mapping_error,
 	.dma_supported		= alpha_pci_supported,
 };
-
-const struct dma_map_ops *dma_ops = &alpha_pci_ops;
-EXPORT_SYMBOL(dma_ops);
+EXPORT_SYMBOL(alpha_pci_ops);
-- 
2.17.0

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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 19/22] sh: use generic dma_noncoherent_ops
Date: Fri, 20 Apr 2018 10:03:10 +0200
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2746081>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sh/Kconfig                   |  3 +-
 arch/sh/include/asm/Kbuild        |  1 +
 arch/sh/include/asm/dma-mapping.h | 26 -----------
 arch/sh/kernel/Makefile           |  1 -
 arch/sh/kernel/dma-nommu.c        | 75 -------------------------------
 arch/sh/mm/consistent.c           | 24 +++++-----
 6 files changed, 13 insertions(+), 117 deletions(-)
 delete mode 100644 arch/sh/include/asm/dma-mapping.h
 delete mode 100644 arch/sh/kernel/dma-nommu.c

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 23e7432302b0..23ed245407b1 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -50,7 +50,6 @@ config SUPERH
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select HAVE_NMI
-	select NEED_DMA_MAP_STATE
 	select NEED_SG_DMA_LENGTH
 
 	help
@@ -163,6 +162,8 @@ config DMA_COHERENT
 
 config DMA_NONCOHERENT
 	def_bool !DMA_COHERENT
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select DMA_NONCOHERENT_OPS
 
 config PGTABLE_LEVELS
 	default 3 if X2TLB
diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index 1efcce74997b..50f7e878ea1b 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -1,6 +1,7 @@
 generic-y += current.h
 generic-y += delay.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += irq_regs.h
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
deleted file mode 100644
index 1ebc6a4eb1c5..000000000000
--- a/arch/sh/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_SH_DMA_MAPPING_H
-#define __ASM_SH_DMA_MAPPING_H
-
-extern const struct dma_map_ops nommu_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-#ifdef CONFIG_DMA_NONCOHERENT
-	return &nommu_dma_ops;
-#else
-	return &dma_direct_ops;
-#endif
-}
-
-extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-					dma_addr_t *dma_addr, gfp_t flag,
-					unsigned long attrs);
-extern void dma_generic_free_coherent(struct device *dev, size_t size,
-				      void *vaddr, dma_addr_t dma_handle,
-				      unsigned long attrs);
-
-void sh_sync_dma_for_device(void *vaddr, size_t size,
-	    enum dma_data_direction dir);
-
-#endif /* __ASM_SH_DMA_MAPPING_H */
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index cb5f1bfb52de..985106e13614 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -45,7 +45,6 @@ obj-$(CONFIG_DUMP_CODE)		+= disassemble.o
 obj-$(CONFIG_HIBERNATION)	+= swsusp.o
 obj-$(CONFIG_DWARF_UNWINDER)	+= dwarf.o
 obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_callchain.o
-obj-$(CONFIG_DMA_NONCOHERENT)	+= dma-nommu.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)		+= hw_breakpoint.o
 
 ccflags-y := -Werror
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
deleted file mode 100644
index 442922a9f8c0..000000000000
--- a/arch/sh/kernel/dma-nommu.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * DMA mapping support for platforms lacking IOMMUs.
- *
- * Copyright (C) 2009  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/dma-mapping.h>
-#include <linux/io.h>
-#include <asm/cacheflush.h>
-
-static dma_addr_t nommu_map_page(struct device *dev, struct page *page,
-				 unsigned long offset, size_t size,
-				 enum dma_data_direction dir,
-				 unsigned long attrs)
-{
-	dma_addr_t addr = page_to_phys(page) + offset;
-
-	WARN_ON(size == 0);
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		sh_sync_dma_for_device(page_address(page) + offset, size, dir);
-
-	return addr;
-}
-
-static int nommu_map_sg(struct device *dev, struct scatterlist *sg,
-			int nents, enum dma_data_direction dir,
-			unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	WARN_ON(nents == 0 || sg[0].length == 0);
-
-	for_each_sg(sg, s, nents, i) {
-		BUG_ON(!sg_page(s));
-
-		if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-			sh_sync_dma_for_device(sg_virt(s), s->length, dir);
-
-		s->dma_address = sg_phys(s);
-		s->dma_length = s->length;
-	}
-
-	return nents;
-}
-
-static void nommu_sync_single_for_device(struct device *dev, dma_addr_t addr,
-			      size_t size, enum dma_data_direction dir)
-{
-	sh_sync_dma_for_device(phys_to_virt(addr), size, dir);
-}
-
-static void nommu_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-			  int nelems, enum dma_data_direction dir)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nelems, i)
-		sh_sync_dma_for_device(sg_virt(s), s->length, dir);
-}
-
-const struct dma_map_ops nommu_dma_ops = {
-	.alloc			= dma_generic_alloc_coherent,
-	.free			= dma_generic_free_coherent,
-	.map_page		= nommu_map_page,
-	.map_sg			= nommu_map_sg,
-	.sync_single_for_device	= nommu_sync_single_for_device,
-	.sync_sg_for_device	= nommu_sync_sg_for_device,
-};
-EXPORT_SYMBOL(nommu_dma_ops);
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 516d481525e1..aaeeb74fdcc3 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -12,17 +12,15 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/dma-debug.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/gfp.h>
 #include <asm/cacheflush.h>
 #include <asm/addrspace.h>
 
-void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-				 dma_addr_t *dma_handle, gfp_t gfp,
-				 unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret, *ret_nocache;
 	int order = get_order(size);
@@ -37,7 +35,7 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 	 * Pages from the page allocator may have data present in
 	 * cache. So flush the cache before using uncached memory.
 	 */
-	sh_sync_dma_for_device(ret, size, DMA_BIDIRECTIONAL);
+	__flush_purge_region(sh_cacheop_vaddr(ret), size);
 
 	ret_nocache = (void __force *)ioremap_nocache(virt_to_phys(ret), size);
 	if (!ret_nocache) {
@@ -52,9 +50,8 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 	return ret_nocache;
 }
 
-void dma_generic_free_coherent(struct device *dev, size_t size,
-			       void *vaddr, dma_addr_t dma_handle,
-			       unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, unsigned long attrs)
 {
 	int order = get_order(size);
 	unsigned long pfn = dma_handle >> PAGE_SHIFT;
@@ -66,12 +63,12 @@ void dma_generic_free_coherent(struct device *dev, size_t size,
 	iounmap(vaddr);
 }
 
-void sh_sync_dma_for_device(void *vaddr, size_t size,
-		    enum dma_data_direction direction)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	void *addr = sh_cacheop_vaddr(vaddr);
+	void *addr = sh_cacheop_vaddr(phys_to_virt(paddr));
 
-	switch (direction) {
+	switch (dir) {
 	case DMA_FROM_DEVICE:		/* invalidate only */
 		__flush_invalidate_region(addr, size);
 		break;
@@ -85,7 +82,6 @@ void sh_sync_dma_for_device(void *vaddr, size_t size,
 		BUG();
 	}
 }
-EXPORT_SYMBOL(sh_sync_dma_for_device);
 
 static int __init memchunk_setup(char *str)
 {
-- 
2.17.0



From - Thu Nov 08 21:41:20 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH 17/22] sh: introduce a sh_cacheop_vaddr helper
Date: Fri, 20 Apr 2018 10:03:08 +0200
Lines: 71
Approved: news@gmane.org
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Cc: linux-arch@vger.kernel.org, Michal Simek <monstr@monstr.eu>,
        Greentime Hu <green.hu@gmail.com>,
        Vincent Chen <deanbo422@gmail.com>,
        linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org,
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And use it in the maple bus code to avoid a dma API dependency.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sh/include/asm/cacheflush.h | 7 +++++++
 arch/sh/mm/consistent.c          | 5 +----
 drivers/sh/maple/maple.c         | 7 ++++---
 3 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index d103ab5a4e4b..b932e42ef028 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -101,5 +101,12 @@ void kunmap_coherent(void *kvaddr);
 
 void cpu_cache_init(void);
 
+static inline void *sh_cacheop_vaddr(void *vaddr)
+{
+	if (__in_29bit_mode())
+		vaddr = (void *)CAC_ADDR((unsigned long)vaddr);
+	return vaddr;
+}
+
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_CACHEFLUSH_H */
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index af2f28572119..516d481525e1 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -69,10 +69,7 @@ void dma_generic_free_coherent(struct device *dev, size_t size,
 void sh_sync_dma_for_device(void *vaddr, size_t size,
 		    enum dma_data_direction direction)
 {
-	void *addr;
-
-	addr = __in_29bit_mode() ?
-	       (void *)CAC_ADDR((unsigned long)vaddr) : vaddr;
+	void *addr = sh_cacheop_vaddr(vaddr);
 
 	switch (direction) {
 	case DMA_FROM_DEVICE:		/* invalidate only */
diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c
index 7525039d812c..c9c354bd713a 100644
--- a/drivers/sh/maple/maple.c
+++ b/drivers/sh/maple/maple.c
@@ -300,8 +300,8 @@ static void maple_send(void)
 	mutex_unlock(&maple_wlist_lock);
 	if (maple_packets > 0) {
 		for (i = 0; i < (1 << MAPLE_DMA_PAGES); i++)
-			sh_sync_dma_for_device(maple_sendbuf + i * PAGE_SIZE,
-				       PAGE_SIZE, DMA_BIDIRECTIONAL);
+			__flush_purge_region(maple_sendbuf + i * PAGE_SIZE,
+					PAGE_SIZE);
 	}
 
 finish:
@@ -642,7 +642,8 @@ static void maple_dma_handler(struct work_struct *work)
 		list_for_each_entry_safe(mq, nmq, &maple_sentq, list) {
 			mdev = mq->dev;
 			recvbuf = mq->recvbuf->buf;
-			sh_sync_dma_for_device(recvbuf, 0x400, DMA_FROM_DEVICE);
+			__flush_invalidate_region(sh_cacheop_vaddr(recvbuf),
+					0x400);
 			code = recvbuf[0];
 			kfree(mq->sendbuf);
 			list_del_init(&mq->list);
-- 
2.17.0



From - Thu Nov 08 21:41:20 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 13/22] nds32: use generic dma_noncoherent_ops
Date: Fri, 20 Apr 2018 10:03:04 +0200
Lines: 307
Approved: news@gmane.org
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        Greentime Hu <green.hu@gmail.com>,
        Vincent Chen <deanbo422@gmail.com>,
        linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2746084>

Switch to the generic noncoherent direct mapping implementation.

This makes sure kmap_atomic_pfn is consistently used for access to
virtual addresses instead of either using the slower plain kmap
or blindly expecting page_address() to work.

This makes sure the cache_sync routines is called in the unmap_sg
case, to match the unmap_single and sync_{single,sg}_to_cpu cases.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/nds32/Kconfig                   |   3 +
 arch/nds32/include/asm/Kbuild        |   1 +
 arch/nds32/include/asm/dma-mapping.h |  14 ---
 arch/nds32/kernel/dma.c              | 182 ++++++---------------------
 4 files changed, 39 insertions(+), 161 deletions(-)
 delete mode 100644 arch/nds32/include/asm/dma-mapping.h

diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index 249f38d3388f..67d0ac0a989c 100644
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -5,10 +5,13 @@
 
 config NDS32
         def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_WANT_FRAME_POINTERS if FTRACE
 	select CLKSRC_MMIO
 	select CLONE_BACKWARDS
 	select COMMON_CLK
+	select DMA_NONCOHERENT_OPS
 	select GENERIC_ATOMIC64
 	select GENERIC_CPU_DEVICES
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/nds32/include/asm/Kbuild b/arch/nds32/include/asm/Kbuild
index 06bdf8167f5a..b3e951f805f8 100644
--- a/arch/nds32/include/asm/Kbuild
+++ b/arch/nds32/include/asm/Kbuild
@@ -13,6 +13,7 @@ generic-y += cputime.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += errno.h
 generic-y += exec.h
diff --git a/arch/nds32/include/asm/dma-mapping.h b/arch/nds32/include/asm/dma-mapping.h
deleted file mode 100644
index 2dd47d245c25..000000000000
--- a/arch/nds32/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,14 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef ASMNDS32_DMA_MAPPING_H
-#define ASMNDS32_DMA_MAPPING_H
-
-extern struct dma_map_ops nds32_dma_ops;
-
-static inline struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &nds32_dma_ops;
-}
-
-#endif
diff --git a/arch/nds32/kernel/dma.c b/arch/nds32/kernel/dma.c
index d291800fc621..688f1a03dee6 100644
--- a/arch/nds32/kernel/dma.c
+++ b/arch/nds32/kernel/dma.c
@@ -3,17 +3,14 @@
 
 #include <linux/types.h>
 #include <linux/mm.h>
-#include <linux/export.h>
 #include <linux/string.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/io.h>
 #include <linux/cache.h>
 #include <linux/highmem.h>
 #include <linux/slab.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
-#include <asm/dma-mapping.h>
 #include <asm/proc-fns.h>
 
 /*
@@ -22,11 +19,6 @@
 static pte_t *consistent_pte;
 static DEFINE_RAW_SPINLOCK(consistent_lock);
 
-enum master_type {
-	FOR_CPU = 0,
-	FOR_DEVICE = 1,
-};
-
 /*
  * VM region handling support.
  *
@@ -124,10 +116,8 @@ static struct arch_vm_region *vm_region_find(struct arch_vm_region *head,
 	return c;
 }
 
-/* FIXME: attrs is not used. */
-static void *nds32_dma_alloc_coherent(struct device *dev, size_t size,
-				      dma_addr_t * handle, gfp_t gfp,
-				      unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	struct page *page;
 	struct arch_vm_region *c;
@@ -232,8 +222,8 @@ static void *nds32_dma_alloc_coherent(struct device *dev, size_t size,
 	return NULL;
 }
 
-static void nds32_dma_free(struct device *dev, size_t size, void *cpu_addr,
-			   dma_addr_t handle, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t handle, unsigned long attrs)
 {
 	struct arch_vm_region *c;
 	unsigned long flags, addr;
@@ -333,145 +323,43 @@ static int __init consistent_init(void)
 }
 
 core_initcall(consistent_init);
-static void consistent_sync(void *vaddr, size_t size, int direction, int master_type);
-static dma_addr_t nds32_dma_map_page(struct device *dev, struct page *page,
-				     unsigned long offset, size_t size,
-				     enum dma_data_direction dir,
-				     unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		consistent_sync((void *)(page_address(page) + offset), size, dir, FOR_DEVICE);
-	return page_to_phys(page) + offset;
-}
-
-static void nds32_dma_unmap_page(struct device *dev, dma_addr_t handle,
-				 size_t size, enum dma_data_direction dir,
-				 unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		consistent_sync(phys_to_virt(handle), size, dir, FOR_CPU);
-}
 
-/*
- * Make an area consistent for devices.
- */
-static void consistent_sync(void *vaddr, size_t size, int direction, int master_type)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	unsigned long start = (unsigned long)vaddr;
-	unsigned long end = start + size;
-
-	if (master_type == FOR_CPU) {
-		switch (direction) {
-		case DMA_TO_DEVICE:
-			break;
-		case DMA_FROM_DEVICE:
-		case DMA_BIDIRECTIONAL:
-			cpu_dma_inval_range(start, end);
-			break;
-		default:
-			BUG();
-		}
-	} else {
-		/* FOR_DEVICE */
-		switch (direction) {
-		case DMA_FROM_DEVICE:
-			break;
-		case DMA_TO_DEVICE:
-		case DMA_BIDIRECTIONAL:
-			cpu_dma_wb_range(start, end);
-			break;
-		default:
-			BUG();
-		}
+	void *addr = kmap_atomic_pfn(PHYS_PFN(paddr));
+	unsigned long start = (unsigned long)addr;
+
+	switch (direction) {
+	case DMA_FROM_DEVICE:
+		break;
+	case DMA_TO_DEVICE:
+	case DMA_BIDIRECTIONAL:
+		cpu_dma_wb_range(start, start + size);
+		break;
+	default:
+		BUG();
 	}
-}
 
-static int nds32_dma_map_sg(struct device *dev, struct scatterlist *sg,
-			    int nents, enum dma_data_direction dir,
-			    unsigned long attrs)
-{
-	int i;
-
-	for (i = 0; i < nents; i++, sg++) {
-		void *virt;
-		unsigned long pfn;
-		struct page *page = sg_page(sg);
-
-		sg->dma_address = sg_phys(sg);
-		pfn = page_to_pfn(page) + sg->offset / PAGE_SIZE;
-		page = pfn_to_page(pfn);
-		if (PageHighMem(page)) {
-			virt = kmap_atomic(page);
-			consistent_sync(virt, sg->length, dir, FOR_CPU);
-			kunmap_atomic(virt);
-		} else {
-			if (sg->offset > PAGE_SIZE)
-				panic("sg->offset:%08x > PAGE_SIZE\n",
-				      sg->offset);
-			virt = page_address(page) + sg->offset;
-			consistent_sync(virt, sg->length, dir, FOR_CPU);
-		}
-	}
-	return nents;
-}
-
-static void nds32_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-			       int nhwentries, enum dma_data_direction dir,
-			       unsigned long attrs)
-{
+	kunmap_atomic(addr);
 }
 
-static void
-nds32_dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
-			      size_t size, enum dma_data_direction dir)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	consistent_sync((void *)phys_to_virt(handle), size, dir, FOR_CPU);
-}
-
-static void
-nds32_dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
-				 size_t size, enum dma_data_direction dir)
-{
-	consistent_sync((void *)phys_to_virt(handle), size, dir, FOR_DEVICE);
-}
-
-static void
-nds32_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
-			  enum dma_data_direction dir)
-{
-	int i;
-
-	for (i = 0; i < nents; i++, sg++) {
-		char *virt =
-		    page_address((struct page *)sg->page_link) + sg->offset;
-		consistent_sync(virt, sg->length, dir, FOR_CPU);
+	void *addr = kmap_atomic_pfn(PHYS_PFN(paddr));
+	unsigned long start = (unsigned long)addr;
+
+	switch (direction) {
+	case DMA_TO_DEVICE:
+		break;
+	case DMA_FROM_DEVICE:
+	case DMA_BIDIRECTIONAL:
+		cpu_dma_inval_range(start, end);
+		break;
+	default:
+		BUG();
 	}
-}
-
-static void
-nds32_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-			     int nents, enum dma_data_direction dir)
-{
-	int i;
 
-	for (i = 0; i < nents; i++, sg++) {
-		char *virt =
-		    page_address((struct page *)sg->page_link) + sg->offset;
-		consistent_sync(virt, sg->length, dir, FOR_DEVICE);
-	}
+	kunmap_atomic(addr);
 }
-
-struct dma_map_ops nds32_dma_ops = {
-	.alloc = nds32_dma_alloc_coherent,
-	.free = nds32_dma_free,
-	.map_page = nds32_dma_map_page,
-	.unmap_page = nds32_dma_unmap_page,
-	.map_sg = nds32_dma_map_sg,
-	.unmap_sg = nds32_dma_unmap_sg,
-	.sync_single_for_device = nds32_dma_sync_single_for_device,
-	.sync_single_for_cpu = nds32_dma_sync_single_for_cpu,
-	.sync_sg_for_cpu = nds32_dma_sync_sg_for_cpu,
-	.sync_sg_for_device = nds32_dma_sync_sg_for_device,
-};
-
-EXPORT_SYMBOL(nds32_dma_ops);
-- 
2.17.0



From - Thu Nov 08 21:41:20 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH 15/22] openrisc: use generic dma_noncoherent_ops
Date: Fri, 20 Apr 2018 10:03:06 +0200
Lines: 240
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2746085>

Switch to the generic noncoherent direct mapping implementation.

Fix sync_single_for_device to do the same cache coherency operations as
the more tested map_single path, as both should transfer ownership to
the device.

Remove the sync_single_for_cpu implementation as no cache coherency
operations are used in the more commonly used unmap_single case, both
of which transfer ownership to the CPU.

Implement the missing sync_sg_for_device operation, matching the cache
coherency operations in sync_single_for_device and map_{single,sg}.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/openrisc/Kconfig                   |   2 +
 arch/openrisc/include/asm/Kbuild        |   1 +
 arch/openrisc/include/asm/dma-mapping.h |  35 --------
 arch/openrisc/kernel/dma.c              | 109 +++---------------------
 4 files changed, 13 insertions(+), 134 deletions(-)
 delete mode 100644 arch/openrisc/include/asm/dma-mapping.h

diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 9ecad05bfc73..65e3c574c9d3 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -6,6 +6,8 @@
 
 config OPENRISC
 	def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select DMA_NONCOHERENT_OPS
 	select OF
 	select OF_EARLY_FLATTREE
 	select IRQ_DOMAIN
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
index f05c722a21f8..e663a996b612 100644
--- a/arch/openrisc/include/asm/Kbuild
+++ b/arch/openrisc/include/asm/Kbuild
@@ -6,6 +6,7 @@ generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
deleted file mode 100644
index e212a1f0b6d2..000000000000
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * OpenRISC Linux
- *
- * Linux architectural port borrowing liberally from similar works of
- * others.  All original copyrights apply as per the original source
- * declaration.
- *
- * OpenRISC implementation:
- * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef __ASM_OPENRISC_DMA_MAPPING_H
-#define __ASM_OPENRISC_DMA_MAPPING_H
-
-/*
- * See Documentation/DMA-API-HOWTO.txt and
- * Documentation/DMA-API.txt for documentation.
- */
-
-#include <linux/dma-debug.h>
-#include <linux/dma-mapping.h>
-
-extern const struct dma_map_ops or1k_dma_map_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &or1k_dma_map_ops;
-}
-
-#endif	/* __ASM_OPENRISC_DMA_MAPPING_H */
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index ec7fd45704d2..cce99405edf4 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -19,9 +19,7 @@
  * the only thing implemented properly.  The rest need looking into...
  */
 
-#include <linux/dma-mapping.h>
-#include <linux/dma-debug.h>
-#include <linux/export.h>
+#include <linux/dma-noncoherent.h>
 
 #include <asm/cpuinfo.h>
 #include <asm/spr_defs.h>
@@ -80,10 +78,9 @@ page_clear_nocache(pte_t *pte, unsigned long addr,
  * is being ignored for now; uncached but write-combined memory is a
  * missing feature of the OR1K.
  */
-static void *
-or1k_dma_alloc(struct device *dev, size_t size,
-	       dma_addr_t *dma_handle, gfp_t gfp,
-	       unsigned long attrs)
+void *
+arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	unsigned long va;
 	void *page;
@@ -115,9 +112,9 @@ or1k_dma_alloc(struct device *dev, size_t size,
 	return (void *)va;
 }
 
-static void
-or1k_dma_free(struct device *dev, size_t size, void *vaddr,
-	      dma_addr_t dma_handle, unsigned long attrs)
+void
+arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, unsigned long attrs)
 {
 	unsigned long va = (unsigned long)vaddr;
 	struct mm_walk walk = {
@@ -133,18 +130,11 @@ or1k_dma_free(struct device *dev, size_t size, void *vaddr,
 	free_pages_exact(vaddr, size);
 }
 
-static dma_addr_t
-or1k_map_page(struct device *dev, struct page *page,
-	      unsigned long offset, size_t size,
-	      enum dma_data_direction dir,
-	      unsigned long attrs)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t addr, size_t size,
+		enum dma_data_direction dir)
 {
-	unsigned long cl;
-	dma_addr_t addr = page_to_phys(page) + offset;
 	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return addr;
+	unsigned long cl;
 
 	switch (dir) {
 	case DMA_TO_DEVICE:
@@ -167,83 +157,4 @@ or1k_map_page(struct device *dev, struct page *page,
 		 */
 		break;
 	}
-
-	return addr;
 }
-
-static void
-or1k_unmap_page(struct device *dev, dma_addr_t dma_handle,
-		size_t size, enum dma_data_direction dir,
-		unsigned long attrs)
-{
-	/* Nothing special to do here... */
-}
-
-static int
-or1k_map_sg(struct device *dev, struct scatterlist *sg,
-	    int nents, enum dma_data_direction dir,
-	    unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		s->dma_address = or1k_map_page(dev, sg_page(s), s->offset,
-					       s->length, dir, 0);
-	}
-
-	return nents;
-}
-
-static void
-or1k_unmap_sg(struct device *dev, struct scatterlist *sg,
-	      int nents, enum dma_data_direction dir,
-	      unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		or1k_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir, 0);
-	}
-}
-
-static void
-or1k_sync_single_for_cpu(struct device *dev,
-			 dma_addr_t dma_handle, size_t size,
-			 enum dma_data_direction dir)
-{
-	unsigned long cl;
-	dma_addr_t addr = dma_handle;
-	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
-
-	/* Invalidate the dcache for the requested range */
-	for (cl = addr; cl < addr + size; cl += cpuinfo->dcache_block_size)
-		mtspr(SPR_DCBIR, cl);
-}
-
-static void
-or1k_sync_single_for_device(struct device *dev,
-			    dma_addr_t dma_handle, size_t size,
-			    enum dma_data_direction dir)
-{
-	unsigned long cl;
-	dma_addr_t addr = dma_handle;
-	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
-
-	/* Flush the dcache for the requested range */
-	for (cl = addr; cl < addr + size; cl += cpuinfo->dcache_block_size)
-		mtspr(SPR_DCBFR, cl);
-}
-
-const struct dma_map_ops or1k_dma_map_ops = {
-	.alloc = or1k_dma_alloc,
-	.free = or1k_dma_free,
-	.map_page = or1k_map_page,
-	.unmap_page = or1k_unmap_page,
-	.map_sg = or1k_map_sg,
-	.unmap_sg = or1k_unmap_sg,
-	.sync_single_for_cpu = or1k_sync_single_for_cpu,
-	.sync_single_for_device = or1k_sync_single_for_device,
-};
-EXPORT_SYMBOL(or1k_dma_map_ops);
-- 
2.17.0



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Subject: [PATCH 08/22] c6x: use generic dma_noncoherent_ops
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Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/c6x/Kconfig                   |   3 +
 arch/c6x/include/asm/Kbuild        |   1 +
 arch/c6x/include/asm/dma-mapping.h |  28 ------
 arch/c6x/include/asm/setup.h       |   2 +
 arch/c6x/kernel/Makefile           |   2 +-
 arch/c6x/kernel/dma.c              | 138 -----------------------------
 arch/c6x/mm/dma-coherent.c         |  40 ++++++++-
 7 files changed, 44 insertions(+), 170 deletions(-)
 delete mode 100644 arch/c6x/include/asm/dma-mapping.h
 delete mode 100644 arch/c6x/kernel/dma.c

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index c6b4dd1418b4..8d7a3b38810f 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -6,7 +6,10 @@
 
 config C6X
 	def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select CLKDEV_LOOKUP
+	select DMA_NONCOHERENT_OPS
 	select GENERIC_ATOMIC64
 	select GENERIC_IRQ_SHOW
 	select HAVE_ARCH_TRACEHOOK
diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
index fd4c840de837..434600e47662 100644
--- a/arch/c6x/include/asm/Kbuild
+++ b/arch/c6x/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
deleted file mode 100644
index 05daf1038111..000000000000
--- a/arch/c6x/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- *  Port on Texas Instruments TMS320C6x architecture
- *
- *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
- *  Author: Aurelien Jacquiot <aurelien.jacquiot@ti.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
- */
-#ifndef _ASM_C6X_DMA_MAPPING_H
-#define _ASM_C6X_DMA_MAPPING_H
-
-extern const struct dma_map_ops c6x_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &c6x_dma_ops;
-}
-
-extern void coherent_mem_init(u32 start, u32 size);
-void *c6x_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
-		gfp_t gfp, unsigned long attrs);
-void c6x_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t dma_handle, unsigned long attrs);
-
-#endif	/* _ASM_C6X_DMA_MAPPING_H */
diff --git a/arch/c6x/include/asm/setup.h b/arch/c6x/include/asm/setup.h
index 852afb209afb..350f34debb19 100644
--- a/arch/c6x/include/asm/setup.h
+++ b/arch/c6x/include/asm/setup.h
@@ -28,5 +28,7 @@ extern unsigned char c6x_fuse_mac[6];
 extern void machine_init(unsigned long dt_ptr);
 extern void time_init(void);
 
+extern void coherent_mem_init(u32 start, u32 size);
+
 #endif /* !__ASSEMBLY__ */
 #endif /* _ASM_C6X_SETUP_H */
diff --git a/arch/c6x/kernel/Makefile b/arch/c6x/kernel/Makefile
index 02f340d7b8fe..fbe74174de87 100644
--- a/arch/c6x/kernel/Makefile
+++ b/arch/c6x/kernel/Makefile
@@ -8,6 +8,6 @@ extra-y := head.o vmlinux.lds
 obj-y := process.o traps.o irq.o signal.o ptrace.o
 obj-y += setup.o sys_c6x.o time.o devicetree.o
 obj-y += switch_to.o entry.o vectors.o c6x_ksyms.o
-obj-y += soc.o dma.o
+obj-y += soc.o
 
 obj-$(CONFIG_MODULES)           += module.o
diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
deleted file mode 100644
index 31e1a9ec3a9c..000000000000
--- a/arch/c6x/kernel/dma.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- *  Copyright (C) 2011 Texas Instruments Incorporated
- *  Author: Mark Salter <msalter@redhat.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- */
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <linux/mm.h>
-#include <linux/mm_types.h>
-#include <linux/scatterlist.h>
-
-#include <asm/cacheflush.h>
-
-static void c6x_dma_sync(dma_addr_t handle, size_t size,
-			 enum dma_data_direction dir)
-{
-	unsigned long paddr = handle;
-
-	BUG_ON(!valid_dma_direction(dir));
-
-	switch (dir) {
-	case DMA_FROM_DEVICE:
-		L2_cache_block_invalidate(paddr, paddr + size);
-		break;
-	case DMA_TO_DEVICE:
-		L2_cache_block_writeback(paddr, paddr + size);
-		break;
-	case DMA_BIDIRECTIONAL:
-		L2_cache_block_writeback_invalidate(paddr, paddr + size);
-		break;
-	default:
-		break;
-	}
-}
-
-static dma_addr_t c6x_dma_map_page(struct device *dev, struct page *page,
-		unsigned long offset, size_t size, enum dma_data_direction dir,
-		unsigned long attrs)
-{
-	dma_addr_t handle = virt_to_phys(page_address(page) + offset);
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		c6x_dma_sync(handle, size, dir);
-
-	return handle;
-}
-
-static void c6x_dma_unmap_page(struct device *dev, dma_addr_t handle,
-		size_t size, enum dma_data_direction dir, unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		c6x_dma_sync(handle, size, dir);
-}
-
-static int c6x_dma_map_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction dir, unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sglist, sg, nents, i) {
-		sg->dma_address = sg_phys(sg);
-		if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-			c6x_dma_sync(sg->dma_address, sg->length, dir);
-	}
-
-	return nents;
-}
-
-static void c6x_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
-		  int nents, enum dma_data_direction dir, unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int i;
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return;
-
-	for_each_sg(sglist, sg, nents, i)
-		c6x_dma_sync(sg_dma_address(sg), sg->length, dir);
-}
-
-static void c6x_dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
-		size_t size, enum dma_data_direction dir)
-{
-	c6x_dma_sync(handle, size, dir);
-
-}
-
-static void c6x_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t handle, size_t size, enum dma_data_direction dir)
-{
-	c6x_dma_sync(handle, size, dir);
-
-}
-
-static void c6x_dma_sync_sg_for_cpu(struct device *dev,
-		struct scatterlist *sglist, int nents,
-		enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sglist, sg, nents, i)
-		c6x_dma_sync_single_for_cpu(dev, sg_dma_address(sg),
-					sg->length, dir);
-
-}
-
-static void c6x_dma_sync_sg_for_device(struct device *dev,
-		struct scatterlist *sglist, int nents,
-		enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sglist, sg, nents, i)
-		c6x_dma_sync_single_for_device(dev, sg_dma_address(sg),
-					   sg->length, dir);
-
-}
-
-const struct dma_map_ops c6x_dma_ops = {
-	.alloc			= c6x_dma_alloc,
-	.free			= c6x_dma_free,
-	.map_page		= c6x_dma_map_page,
-	.unmap_page		= c6x_dma_unmap_page,
-	.map_sg			= c6x_dma_map_sg,
-	.unmap_sg		= c6x_dma_unmap_sg,
-	.sync_single_for_device	= c6x_dma_sync_single_for_device,
-	.sync_single_for_cpu	= c6x_dma_sync_single_for_cpu,
-	.sync_sg_for_device	= c6x_dma_sync_sg_for_device,
-	.sync_sg_for_cpu	= c6x_dma_sync_sg_for_cpu,
-};
-EXPORT_SYMBOL(c6x_dma_ops);
diff --git a/arch/c6x/mm/dma-coherent.c b/arch/c6x/mm/dma-coherent.c
index 95e38ad27c69..d0a8e0c4b27e 100644
--- a/arch/c6x/mm/dma-coherent.c
+++ b/arch/c6x/mm/dma-coherent.c
@@ -19,10 +19,12 @@
 #include <linux/bitops.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/memblock.h>
 
+#include <asm/cacheflush.h>
 #include <asm/page.h>
+#include <asm/setup.h>
 
 /*
  * DMA coherent memory management, can be redefined using the memdma=
@@ -73,7 +75,7 @@ static void __free_dma_pages(u32 addr, int order)
  * Allocate DMA coherent memory space and return both the kernel
  * virtual and DMA address for that space.
  */
-void *c6x_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 		gfp_t gfp, unsigned long attrs)
 {
 	u32 paddr;
@@ -98,7 +100,7 @@ void *c6x_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 /*
  * Free DMA coherent memory as defined by the above mapping.
  */
-void c6x_dma_free(struct device *dev, size_t size, void *vaddr,
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
 	int order;
@@ -139,3 +141,35 @@ void __init coherent_mem_init(phys_addr_t start, u32 size)
 	dma_bitmap = phys_to_virt(bitmap_phys);
 	memset(dma_bitmap, 0, dma_pages * PAGE_SIZE);
 }
+
+static void c6x_dma_sync(struct device *dev, phys_addr_t paddr, size_t size,
+		enum dma_data_direction dir)
+{
+	BUG_ON(!valid_dma_direction(dir));
+
+	switch (dir) {
+	case DMA_FROM_DEVICE:
+		L2_cache_block_invalidate(paddr, paddr + size);
+		break;
+	case DMA_TO_DEVICE:
+		L2_cache_block_writeback(paddr, paddr + size);
+		break;
+	case DMA_BIDIRECTIONAL:
+		L2_cache_block_writeback_invalidate(paddr, paddr + size);
+		break;
+	default:
+		break;
+	}
+}
+
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
+{
+	return c6x_dma_sync(dev, paddr, size, dir);
+}
+
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
+{
+	return c6x_dma_sync(dev, paddr, size, dir);
+}
-- 
2.17.0

From - Thu Nov 08 21:41:20 2018
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Subject: [PATCH 14/22] nios2: use generic dma_noncoherent_ops
Date: Fri, 20 Apr 2018 10:03:05 +0200
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Message-ID: <20180420080313.18796-15-hch@lst.de>
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        Vincent Chen <deanbo422@gmail.com>,
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Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/nios2/Kconfig                   |   3 +
 arch/nios2/include/asm/Kbuild        |   1 +
 arch/nios2/include/asm/dma-mapping.h |  20 ----
 arch/nios2/mm/dma-mapping.c          | 139 +++------------------------
 4 files changed, 17 insertions(+), 146 deletions(-)
 delete mode 100644 arch/nios2/include/asm/dma-mapping.h

diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 3d4ec88f1db1..92035042cf62 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -1,6 +1,9 @@
 # SPDX-License-Identifier: GPL-2.0
 config NIOS2
 	def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select DMA_NONCOHERENT_OPS
 	select TIMER_OF
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/nios2/include/asm/Kbuild b/arch/nios2/include/asm/Kbuild
index d232da2cbb38..24f6ee1ee69b 100644
--- a/arch/nios2/include/asm/Kbuild
+++ b/arch/nios2/include/asm/Kbuild
@@ -8,6 +8,7 @@ generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
deleted file mode 100644
index 6ceb92251da0..000000000000
--- a/arch/nios2/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
- * Copyright (C) 2009 Wind River Systems Inc
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License.  See the file COPYING in the main directory of this
- * archive for more details.
- */
-
-#ifndef _ASM_NIOS2_DMA_MAPPING_H
-#define _ASM_NIOS2_DMA_MAPPING_H
-
-extern const struct dma_map_ops nios2_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &nios2_dma_ops;
-}
-
-#endif /* _ASM_NIOS2_DMA_MAPPING_H */
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index 4be815519dd4..4af9e5b5ba1c 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -12,18 +12,18 @@
 
 #include <linux/types.h>
 #include <linux/mm.h>
-#include <linux/export.h>
 #include <linux/string.h>
-#include <linux/scatterlist.h>
 #include <linux/dma-mapping.h>
 #include <linux/io.h>
 #include <linux/cache.h>
 #include <asm/cacheflush.h>
 
-static inline void __dma_sync_for_device(void *vaddr, size_t size,
-			      enum dma_data_direction direction)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	switch (direction) {
+	void *vaddr = phys_to_virt(paddr);
+
+	switch (dir) {
 	case DMA_FROM_DEVICE:
 		invalidate_dcache_range((unsigned long)vaddr,
 			(unsigned long)(vaddr + size));
@@ -42,10 +42,12 @@ static inline void __dma_sync_for_device(void *vaddr, size_t size,
 	}
 }
 
-static inline void __dma_sync_for_cpu(void *vaddr, size_t size,
-			      enum dma_data_direction direction)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	switch (direction) {
+	void *vaddr = phys_to_virt(paddr);
+
+	switch (dir) {
 	case DMA_BIDIRECTIONAL:
 	case DMA_FROM_DEVICE:
 		invalidate_dcache_range((unsigned long)vaddr,
@@ -58,8 +60,8 @@ static inline void __dma_sync_for_cpu(void *vaddr, size_t size,
 	}
 }
 
-static void *nios2_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -80,125 +82,10 @@ static void *nios2_dma_alloc(struct device *dev, size_t size,
 	return ret;
 }
 
-static void nios2_dma_free(struct device *dev, size_t size, void *vaddr,
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
 	unsigned long addr = (unsigned long) CAC_ADDR((unsigned long) vaddr);
 
 	free_pages(addr, get_order(size));
 }
-
-static int nios2_dma_map_sg(struct device *dev, struct scatterlist *sg,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	int i;
-
-	for_each_sg(sg, sg, nents, i) {
-		void *addr = sg_virt(sg);
-
-		if (!addr)
-			continue;
-
-		sg->dma_address = sg_phys(sg);
-
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		__dma_sync_for_device(addr, sg->length, direction);
-	}
-
-	return nents;
-}
-
-static dma_addr_t nios2_dma_map_page(struct device *dev, struct page *page,
-			unsigned long offset, size_t size,
-			enum dma_data_direction direction,
-			unsigned long attrs)
-{
-	void *addr = page_address(page) + offset;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		__dma_sync_for_device(addr, size, direction);
-
-	return page_to_phys(page) + offset;
-}
-
-static void nios2_dma_unmap_page(struct device *dev, dma_addr_t dma_address,
-		size_t size, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		__dma_sync_for_cpu(phys_to_virt(dma_address), size, direction);
-}
-
-static void nios2_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-		int nhwentries, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	void *addr;
-	int i;
-
-	if (direction == DMA_TO_DEVICE)
-		return;
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return;
-
-	for_each_sg(sg, sg, nhwentries, i) {
-		addr = sg_virt(sg);
-		if (addr)
-			__dma_sync_for_cpu(addr, sg->length, direction);
-	}
-}
-
-static void nios2_dma_sync_single_for_cpu(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	__dma_sync_for_cpu(phys_to_virt(dma_handle), size, direction);
-}
-
-static void nios2_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	__dma_sync_for_device(phys_to_virt(dma_handle), size, direction);
-}
-
-static void nios2_dma_sync_sg_for_cpu(struct device *dev,
-		struct scatterlist *sg, int nelems,
-		enum dma_data_direction direction)
-{
-	int i;
-
-	/* Make sure that gcc doesn't leave the empty loop body.  */
-	for_each_sg(sg, sg, nelems, i)
-		__dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
-}
-
-static void nios2_dma_sync_sg_for_device(struct device *dev,
-		struct scatterlist *sg, int nelems,
-		enum dma_data_direction direction)
-{
-	int i;
-
-	/* Make sure that gcc doesn't leave the empty loop body.  */
-	for_each_sg(sg, sg, nelems, i)
-		__dma_sync_for_device(sg_virt(sg), sg->length, direction);
-
-}
-
-const struct dma_map_ops nios2_dma_ops = {
-	.alloc			= nios2_dma_alloc,
-	.free			= nios2_dma_free,
-	.map_page		= nios2_dma_map_page,
-	.unmap_page		= nios2_dma_unmap_page,
-	.map_sg			= nios2_dma_map_sg,
-	.unmap_sg		= nios2_dma_unmap_sg,
-	.sync_single_for_device	= nios2_dma_sync_single_for_device,
-	.sync_single_for_cpu	= nios2_dma_sync_single_for_cpu,
-	.sync_sg_for_cpu	= nios2_dma_sync_sg_for_cpu,
-	.sync_sg_for_device	= nios2_dma_sync_sg_for_device,
-};
-EXPORT_SYMBOL(nios2_dma_ops);
-- 
2.17.0



From - Thu Nov 08 21:41:20 2018
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Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc
Subject: [PATCH 06/22] arc: use generic dma_noncoherent_ops
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/644809>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arc/Kconfig                   |   4 +
 arch/arc/include/asm/Kbuild        |   1 +
 arch/arc/include/asm/dma-mapping.h |  21 -----
 arch/arc/mm/dma.c                  | 141 +++--------------------------
 4 files changed, 19 insertions(+), 148 deletions(-)
 delete mode 100644 arch/arc/include/asm/dma-mapping.h

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 7498aca4b887..89d47eac18b2 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -9,11 +9,15 @@
 config ARC
 	def_bool y
 	select ARC_TIMERS
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_HAS_SG_CHAIN
 	select ARCH_SUPPORTS_ATOMIC_RMW if ARC_HAS_LLSC
 	select BUILDTIME_EXTABLE_SORT
 	select CLONE_BACKWARDS
 	select COMMON_CLK
+	select DMA_NONCOHERENT_OPS
+	select DMA_NONCOHERENT_MMAP
 	select GENERIC_ATOMIC64 if !ISA_ARCV2 || !(ARC_HAS_LL64 && ARC_HAS_LLSC)
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_FIND_FIRST_BIT
diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild
index 4bd5d4369e05..bbdcb955e18f 100644
--- a/arch/arc/include/asm/Kbuild
+++ b/arch/arc/include/asm/Kbuild
@@ -2,6 +2,7 @@
 generic-y += bugs.h
 generic-y += device.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += extable.h
 generic-y += fb.h
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
deleted file mode 100644
index 7a16824bfe98..000000000000
--- a/arch/arc/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * DMA Mapping glue for ARC
- *
- * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef ASM_ARC_DMA_MAPPING_H
-#define ASM_ARC_DMA_MAPPING_H
-
-extern const struct dma_map_ops arc_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &arc_dma_ops;
-}
-
-#endif
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 1dcc404b5aec..ecfeb5585cc7 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -16,13 +16,12 @@
  * The default DMA address == Phy address which is 0x8000_0000 based.
  */
 
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <asm/cache.h>
 #include <asm/cacheflush.h>
 
-
-static void *arc_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	unsigned long order = get_order(size);
 	struct page *page;
@@ -89,7 +88,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
 	return kvaddr;
 }
 
-static void arc_dma_free(struct device *dev, size_t size, void *vaddr,
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
 	phys_addr_t paddr = dma_handle;
@@ -105,9 +104,9 @@ static void arc_dma_free(struct device *dev, size_t size, void *vaddr,
 	__free_pages(page, get_order(size));
 }
 
-static int arc_dma_mmap(struct device *dev, struct vm_area_struct *vma,
-			void *cpu_addr, dma_addr_t dma_addr, size_t size,
-			unsigned long attrs)
+int arch_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+		void *cpu_addr, dma_addr_t dma_addr, size_t size,
+		unsigned long attrs)
 {
 	unsigned long user_count = vma_pages(vma);
 	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
@@ -135,7 +134,7 @@ static int arc_dma_mmap(struct device *dev, struct vm_area_struct *vma,
  * CPU accesses page via normal paddr, thus needs to explicitly made
  * consistent before each use
  */
-static void _dma_cache_sync(phys_addr_t paddr, size_t size,
+static void _dma_cache_sync(struct device *dev, phys_addr_t paddr size_t size,
 		enum dma_data_direction dir)
 {
 	switch (dir) {
@@ -153,126 +152,14 @@ static void _dma_cache_sync(phys_addr_t paddr, size_t size,
 	}
 }
 
-/*
- * arc_dma_map_page - map a portion of a page for streaming DMA
- *
- * Ensure that any data held in the cache is appropriately discarded
- * or written back.
- *
- * The device owns this memory once this call has completed.  The CPU
- * can regain ownership by calling dma_unmap_page().
- *
- * Note: while it takes struct page as arg, caller can "abuse" it to pass
- * a region larger than PAGE_SIZE, provided it is physically contiguous
- * and this still works correctly
- */
-static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
-		unsigned long offset, size_t size, enum dma_data_direction dir,
-		unsigned long attrs)
-{
-	phys_addr_t paddr = page_to_phys(page) + offset;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		_dma_cache_sync(paddr, size, dir);
-
-	return paddr;
-}
-
-/*
- * arc_dma_unmap_page - unmap a buffer previously mapped through dma_map_page()
- *
- * After this call, reads by the CPU to the buffer are guaranteed to see
- * whatever the device wrote there.
- *
- * Note: historically this routine was not implemented for ARC
- */
-static void arc_dma_unmap_page(struct device *dev, dma_addr_t handle,
-			       size_t size, enum dma_data_direction dir,
-			       unsigned long attrs)
-{
-	phys_addr_t paddr = handle;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		_dma_cache_sync(paddr, size, dir);
-}
-
-static int arc_dma_map_sg(struct device *dev, struct scatterlist *sg,
-	   int nents, enum dma_data_direction dir, unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i)
-		s->dma_address = dma_map_page(dev, sg_page(s), s->offset,
-					       s->length, dir);
-
-	return nents;
-}
-
-static void arc_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-			     int nents, enum dma_data_direction dir,
-			     unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i)
-		arc_dma_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir,
-				   attrs);
-}
-
-static void arc_dma_sync_single_for_cpu(struct device *dev,
-		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
-{
-	_dma_cache_sync(dma_handle, size, DMA_FROM_DEVICE);
-}
-
-static void arc_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	_dma_cache_sync(dma_handle, size, DMA_TO_DEVICE);
+	return _dma_cache_sync(dev, paddr, size, dir);
 }
 
-static void arc_dma_sync_sg_for_cpu(struct device *dev,
-		struct scatterlist *sglist, int nelems,
-		enum dma_data_direction dir)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nelems, i)
-		_dma_cache_sync(sg_phys(sg), sg->length, dir);
+	return _dma_cache_sync(dev, paddr, size, dir);
 }
-
-static void arc_dma_sync_sg_for_device(struct device *dev,
-		struct scatterlist *sglist, int nelems,
-		enum dma_data_direction dir)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nelems, i)
-		_dma_cache_sync(sg_phys(sg), sg->length, dir);
-}
-
-static int arc_dma_supported(struct device *dev, u64 dma_mask)
-{
-	/* Support 32 bit DMA mask exclusively */
-	return dma_mask == DMA_BIT_MASK(32);
-}
-
-const struct dma_map_ops arc_dma_ops = {
-	.alloc			= arc_dma_alloc,
-	.free			= arc_dma_free,
-	.mmap			= arc_dma_mmap,
-	.map_page		= arc_dma_map_page,
-	.unmap_page		= arc_dma_unmap_page,
-	.map_sg			= arc_dma_map_sg,
-	.unmap_sg		= arc_dma_unmap_sg,
-	.sync_single_for_device	= arc_dma_sync_single_for_device,
-	.sync_single_for_cpu	= arc_dma_sync_single_for_cpu,
-	.sync_sg_for_cpu	= arc_dma_sync_sg_for_cpu,
-	.sync_sg_for_device	= arc_dma_sync_sg_for_device,
-	.dma_supported		= arc_dma_supported,
-};
-EXPORT_SYMBOL(arc_dma_ops);
-- 
2.17.0

From - Thu Nov 08 21:41:21 2018
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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 10/22] m68k: use generic dma_noncoherent_ops
Date: Fri, 20 Apr 2018 10:03:01 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3818>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/m68k/Kconfig                   |  2 +
 arch/m68k/include/asm/Kbuild        |  1 +
 arch/m68k/include/asm/dma-mapping.h | 12 -----
 arch/m68k/kernel/dma.c              | 68 ++++-------------------------
 4 files changed, 11 insertions(+), 72 deletions(-)
 delete mode 100644 arch/m68k/include/asm/dma-mapping.h

diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 785612b576f7..3f61327da2d5 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -2,6 +2,7 @@
 config M68K
 	bool
 	default y
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
 	select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
 	select HAVE_IDE
@@ -24,6 +25,7 @@ config M68K
 	select MODULES_USE_ELF_RELA
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
+	select DMA_NONCOHERENT_OPS if HAS_DMA
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
index 88a9d27df1ac..a853c00f1374 100644
--- a/arch/m68k/include/asm/Kbuild
+++ b/arch/m68k/include/asm/Kbuild
@@ -1,5 +1,6 @@
 generic-y += barrier.h
 generic-y += device.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
deleted file mode 100644
index e3722ed04fbb..000000000000
--- a/arch/m68k/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _M68K_DMA_MAPPING_H
-#define _M68K_DMA_MAPPING_H
-
-extern const struct dma_map_ops m68k_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-        return &m68k_dma_ops;
-}
-
-#endif  /* _M68K_DMA_MAPPING_H */
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index c01b9b8f97bf..3d561c577d35 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -6,7 +6,7 @@
 
 #undef DEBUG
 
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/scatterlist.h>
@@ -18,7 +18,7 @@
 
 #if defined(CONFIG_MMU) && !defined(CONFIG_COLDFIRE)
 
-static void *m68k_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 		gfp_t flag, unsigned long attrs)
 {
 	struct page *page, **map;
@@ -61,7 +61,7 @@ static void *m68k_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 	return addr;
 }
 
-static void m68k_dma_free(struct device *dev, size_t size, void *addr,
+void arch_dma_free(struct device *dev, size_t size, void *addr,
 		dma_addr_t handle, unsigned long attrs)
 {
 	pr_debug("dma_free_coherent: %p, %x\n", addr, handle);
@@ -72,8 +72,8 @@ static void m68k_dma_free(struct device *dev, size_t size, void *addr,
 
 #include <asm/cacheflush.h>
 
-static void *m68k_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -88,7 +88,7 @@ static void *m68k_dma_alloc(struct device *dev, size_t size,
 	return ret;
 }
 
-static void m68k_dma_free(struct device *dev, size_t size, void *vaddr,
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
 	free_pages((unsigned long)vaddr, get_order(size));
@@ -96,8 +96,8 @@ static void m68k_dma_free(struct device *dev, size_t size, void *vaddr,
 
 #endif /* CONFIG_MMU && !CONFIG_COLDFIRE */
 
-static void m68k_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t handle, size_t size, enum dma_data_direction dir)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t handle,
+		size_t size, enum dma_data_direction dir)
 {
 	switch (dir) {
 	case DMA_BIDIRECTIONAL:
@@ -113,55 +113,3 @@ static void m68k_dma_sync_single_for_device(struct device *dev,
 		break;
 	}
 }
-
-static void m68k_dma_sync_sg_for_device(struct device *dev,
-		struct scatterlist *sglist, int nents, enum dma_data_direction dir)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nents, i) {
-		dma_sync_single_for_device(dev, sg->dma_address, sg->length,
-					   dir);
-	}
-}
-
-static dma_addr_t m68k_dma_map_page(struct device *dev, struct page *page,
-		unsigned long offset, size_t size, enum dma_data_direction dir,
-		unsigned long attrs)
-{
-	dma_addr_t handle = page_to_phys(page) + offset;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		dma_sync_single_for_device(dev, handle, size, dir);
-
-	return handle;
-}
-
-static int m68k_dma_map_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction dir, unsigned long attrs)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nents, i) {
-		sg->dma_address = sg_phys(sg);
-
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		dma_sync_single_for_device(dev, sg->dma_address, sg->length,
-					   dir);
-	}
-	return nents;
-}
-
-const struct dma_map_ops m68k_dma_ops = {
-	.alloc			= m68k_dma_alloc,
-	.free			= m68k_dma_free,
-	.map_page		= m68k_dma_map_page,
-	.map_sg			= m68k_dma_map_sg,
-	.sync_single_for_device	= m68k_dma_sync_single_for_device,
-	.sync_sg_for_device	= m68k_dma_sync_sg_for_device,
-};
-EXPORT_SYMBOL(m68k_dma_ops);
-- 
2.17.0

From - Thu Nov 08 21:41:21 2018
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Subject: [PATCH 12/22] microblaze: remove the consistent_sync and consistent_sync_page
Date: Fri, 20 Apr 2018 10:03:03 +0200
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Both unused.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/microblaze/include/asm/pgtable.h |  3 --
 arch/microblaze/mm/consistent.c       | 45 ---------------------------
 2 files changed, 48 deletions(-)

diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index 5174733fb489..ac6a37bd41ec 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -551,9 +551,6 @@ void __init *early_get_page(void);
 
 extern unsigned long ioremap_bot, ioremap_base;
 
-void consistent_sync(void *vaddr, size_t size, int direction);
-void consistent_sync_page(struct page *page, unsigned long offset,
-	size_t size, int direction);
 unsigned long consistent_virt_to_pfn(void *vaddr);
 
 void setup_memory(void);
diff --git a/arch/microblaze/mm/consistent.c b/arch/microblaze/mm/consistent.c
index b9a9c8c3397b..c9a278ac795a 100644
--- a/arch/microblaze/mm/consistent.c
+++ b/arch/microblaze/mm/consistent.c
@@ -220,48 +220,3 @@ void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 	flush_tlb_all();
 #endif
 }
-
-/*
- * make an area consistent.
- */
-void consistent_sync(void *vaddr, size_t size, int direction)
-{
-	unsigned long start;
-	unsigned long end;
-
-	start = (unsigned long)vaddr;
-
-	/* Convert start address back down to unshadowed memory region */
-#ifdef CONFIG_XILINX_UNCACHED_SHADOW
-	start &= ~UNCACHED_SHADOW_MASK;
-#endif
-	end = start + size;
-
-	switch (direction) {
-	case PCI_DMA_NONE:
-		BUG();
-	case PCI_DMA_FROMDEVICE:	/* invalidate only */
-		invalidate_dcache_range(start, end);
-		break;
-	case PCI_DMA_TODEVICE:		/* writeback only */
-		flush_dcache_range(start, end);
-		break;
-	case PCI_DMA_BIDIRECTIONAL:	/* writeback and invalidate */
-		flush_dcache_range(start, end);
-		break;
-	}
-}
-EXPORT_SYMBOL(consistent_sync);
-
-/*
- * consistent_sync_page makes memory consistent. identical
- * to consistent_sync, but takes a struct page instead of a
- * virtual address
- */
-void consistent_sync_page(struct page *page, unsigned long offset,
-	size_t size, int direction)
-{
-	unsigned long start = (unsigned long)page_address(page) + offset;
-	consistent_sync((void *)start, size, direction);
-}
-EXPORT_SYMBOL(consistent_sync_page);
-- 
2.17.0



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On Thu, 19 Apr 2018 21:29:45 +0200
Frank Scheiner <frank.scheiner@web.de> wrote:

> Afterwards I found some older notes about this machine which mention
> no issues during diskless operation with the very same configuration 
> (kernel and possibly also userland), which made me wonder, if there's 
> maybe an issue between the machine's built-in NIC and my used 1000
> Mbit network switch. And indeed, when connecting another 100 Mbit
> network switch in between the 712/80 and the 1000 Mbit network switch
> the issue seemed to be gone and the machine stayed accessible .
> 
> But later this week I retried the 712/80 with the current Linux
> kernel (4.15.x) and Debian userland and the issue hit me again,
> although much later and despite the 100 Mbit network switch in
> between. Looking at it I could see that the collision indicator was
> active on the switch for the port used by the 712/80. I then
> configured a singular port of the 1000 Mbit network switch to 10 Mbit
> full duplex and attached the 712/80 to it. And then the issue again
> seemed to be gone. But trying to install a package or updating the
> package cache again quickly triggered it.

You could try setting the internal NIC to half-duplex, or perhaps use a
(passive) 10BASE-T hub instead of a switch if you cannot configure that
internally, on the kernel command line, or doing it in userland is too
late.


Kind regards,
     jer



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Cc: linux-arch@vger.kernel.org, linux-xtensa@linux-xtensa.org,
        Michal Simek <monstr@monstr.eu>,
        Vincent Chen <deanbo422@gmail.com>,
        linux-c6x-dev@linux-c6x.org, linux-parisc@vger.kernel.org,
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To: Christoph Hellwig <hch@lst.de>
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Hi Christoph,

Nice cleanup! Looks good overall, just a couple of nits.

On 20/04/18 09:02, Christoph Hellwig wrote:
[...]
> diff --git a/lib/dma-debug.c b/lib/dma-debug.c
> index 7f5cdc1e6b29..712a897174e4 100644
> --- a/lib/dma-debug.c
> +++ b/lib/dma-debug.c
> @@ -41,6 +41,11 @@
>   #define HASH_FN_SHIFT   13
>   #define HASH_FN_MASK    (HASH_SIZE - 1)
>   
> +/* allow architectures to override this if absolutely required */
> +#ifndef PREALLOC_DMA_DEBUG_ENTRIES
> +#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> +#endif
> +
>   enum {
>   	dma_debug_single,
>   	dma_debug_page,
> @@ -1004,18 +1009,16 @@ void dma_debug_add_bus(struct bus_type *bus)
>   	bus_register_notifier(bus, nb);
>   }
>   
> -/*
> - * Let the architectures decide how many entries should be preallocated.
> - */
> -void dma_debug_init(u32 num_entries)
> +static int dma_debug_init(void)
>   {
> +	u32 num_entries;

Maybe initialise it to PREALLOC_DMA_DEBUG_ENTRIES?

>   	int i;
>   
>   	/* Do not use dma_debug_initialized here, since we really want to be
>   	 * called to set dma_debug_initialized
>   	 */
>   	if (global_disable)
> -		return;
> +		return 0;
>   
>   	for (i = 0; i < HASH_SIZE; ++i) {
>   		INIT_LIST_HEAD(&dma_entry_hash[i].list);
> @@ -1026,17 +1029,19 @@ void dma_debug_init(u32 num_entries)
>   		pr_err("DMA-API: error creating debugfs entries - disabling\n");
>   		global_disable = true;
>   
> -		return;
> +		return 0;
>   	}
>   
>   	if (req_entries)
>   		num_entries = req_entries;
> +	else
> +		num_entries = PREALLOC_DMA_DEBUG_ENTRIES;
>   
>   	if (prealloc_memory(num_entries) != 0) {
>   		pr_err("DMA-API: debugging out of memory error - disabled\n");
>   		global_disable = true;
>   
> -		return;
> +		return 0;
>   	}
>   
>   	nr_total_entries = num_free_entries;
> @@ -1044,7 +1049,9 @@ void dma_debug_init(u32 num_entries)
>   	dma_debug_initialized = true;
>   
>   	pr_info("DMA-API: debugging enabled by kernel config\n");
> +	return 0;
>   }
> +core_initcall(dma_debug_init);

I think it's worth noting that for most users this now happens much 
earlier than before. In general that's probably good (e.g. on arm64 it 
should prevent false-positives from the Arm SMMU drivers under ACPI), 
and I can't imagine it's high-risk, but it is a behaviour change.

Robin.

>   
>   static __init int dma_debug_cmdline(char *str)
>   {
> 


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Subject: [REVIEW][PATCH 12/22] signal/parisc: Use force_sig_mceerr where appropriate
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In do_page_fault where an mceerr is generated stop and call force_sig_mceerr.
Keeping the mcerr handling logic out of the force_sig_info call below.

This ensures that only and always in the mcerr case is lsb interesting.

This ensures setting set si_lsb in the future won't accidentally
stomp another siginfo field in the non mcerr case.

Cc: James Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
 arch/parisc/mm/fault.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 657b35096bd8..51215b0048ef 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -354,7 +354,6 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 
 	if (user_mode(regs)) {
 		struct siginfo si;
-		unsigned int lsb = 0;
 
 		clear_siginfo(&si);
 		switch (code) {
@@ -391,26 +390,27 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 
 #ifdef CONFIG_MEMORY_FAILURE
 		if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
+			unsigned int lsb = 0;
 			printk(KERN_ERR
 	"MCE: Killing %s:%d due to hardware memory corruption fault at %08lx\n",
 			tsk->comm, tsk->pid, address);
-			si.si_signo = SIGBUS;
-			si.si_code = BUS_MCEERR_AR;
+			/*
+			 * Either small page or large page may be poisoned.
+			 * In other words, VM_FAULT_HWPOISON_LARGE and
+			 * VM_FAULT_HWPOISON are mutually exclusive.
+			 */
+			if (fault & VM_FAULT_HWPOISON_LARGE)
+				lsb = hstate_index_to_shift(VM_FAULT_GET_HINDEX(fault));
+			else if (fault & VM_FAULT_HWPOISON)
+				lsb = PAGE_SHIFT;
+
+			force_sig_mceerr(BUS_MCEERR_AR, (void __user *) address,
+					 lsb, current);
+			return;
 		}
 #endif
 
-		/*
-		 * Either small page or large page may be poisoned.
-		 * In other words, VM_FAULT_HWPOISON_LARGE and
-		 * VM_FAULT_HWPOISON are mutually exclusive.
-		 */
-		if (fault & VM_FAULT_HWPOISON_LARGE)
-			lsb = hstate_index_to_shift(VM_FAULT_GET_HINDEX(fault));
-		else if (fault & VM_FAULT_HWPOISON)
-			lsb = PAGE_SHIFT;
-		else
-			show_signal_msg(regs, code, address, tsk, vma);
-		si.si_addr_lsb = lsb;
+		show_signal_msg(regs, code, address, tsk, vma);
 
 		si.si_errno = 0;
 		si.si_addr = (void __user *) address;
-- 
2.14.1



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Filling in struct siginfo before calling force_sig_info a tedious and
error prone process, where once in a great while the wrong fields
are filled out, and siginfo has been inconsistently cleared.

Simplify this process by using the helper force_sig_fault.  Which
takes as a parameters all of the information it needs, ensures
all of the fiddly bits of filling in struct siginfo are done properly
and then calls force_sig_info.

In short about a 5 line reduction in code for every time force_sig_info
is called, which makes the calling function clearer.

Cc: James Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
 arch/parisc/kernel/ptrace.c    | 11 ++------
 arch/parisc/kernel/traps.c     | 63 ++++++++++++++----------------------------
 arch/parisc/kernel/unaligned.c | 16 +++--------
 arch/parisc/math-emu/driver.c  |  9 ++----
 arch/parisc/mm/fault.c         | 25 +++++++----------
 5 files changed, 39 insertions(+), 85 deletions(-)

diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index b1c12ceb1c88..7aa1d4d0d444 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -76,8 +76,6 @@ void user_enable_single_step(struct task_struct *task)
 	set_tsk_thread_flag(task, TIF_SINGLESTEP);
 
 	if (pa_psw(task)->n) {
-		struct siginfo si;
-
 		/* Nullified, just crank over the queue. */
 		task_regs(task)->iaoq[0] = task_regs(task)->iaoq[1];
 		task_regs(task)->iasq[0] = task_regs(task)->iasq[1];
@@ -90,12 +88,9 @@ void user_enable_single_step(struct task_struct *task)
 		ptrace_disable(task);
 		/* Don't wake up the task, but let the
 		   parent know something happened. */
-		clear_siginfo(&si);
-		si.si_code = TRAP_TRACE;
-		si.si_addr = (void __user *) (task_regs(task)->iaoq[0] & ~3);
-		si.si_signo = SIGTRAP;
-		si.si_errno = 0;
-		force_sig_info(SIGTRAP, &si, task);
+		force_sig_fault(SIGTRAP, TRAP_TRACE,
+				(void __user *) (task_regs(task)->iaoq[0] & ~3),
+				task);
 		/* notify_parent(task, SIGCHLD); */
 		return;
 	}
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 98f9f2f85940..132b09c657ff 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -297,14 +297,8 @@ void die_if_kernel(char *str, struct pt_regs *regs, long err)
 #define GDB_BREAK_INSN 0x10004
 static void handle_gdb_break(struct pt_regs *regs, int wot)
 {
-	struct siginfo si;
-
-	clear_siginfo(&si);
-	si.si_signo = SIGTRAP;
-	si.si_errno = 0;
-	si.si_code = wot;
-	si.si_addr = (void __user *) (regs->iaoq[0] & ~3);
-	force_sig_info(SIGTRAP, &si, current);
+	force_sig_fault(SIGTRAP, wot,
+			(void __user *) (regs->iaoq[0] & ~3), current);
 }
 
 static void handle_break(struct pt_regs *regs)
@@ -488,9 +482,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 {
 	unsigned long fault_address = 0;
 	unsigned long fault_space = 0;
-	struct siginfo si;
+	int si_code;
 
-	clear_siginfo(&si);
 	if (code == 1)
 	    pdc_console_restart();  /* switch back to pdc if HPMC */
 	else
@@ -573,7 +566,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 	case  8:
 		/* Illegal instruction trap */
 		die_if_kernel("Illegal instruction", regs, code);
-		si.si_code = ILL_ILLOPC;
+		si_code = ILL_ILLOPC;
 		goto give_sigill;
 
 	case  9:
@@ -584,7 +577,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 	case 10:
 		/* Privileged operation trap */
 		die_if_kernel("Privileged operation", regs, code);
-		si.si_code = ILL_PRVOPC;
+		si_code = ILL_PRVOPC;
 		goto give_sigill;
 
 	case 11:
@@ -607,20 +600,16 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 		}
 
 		die_if_kernel("Privileged register usage", regs, code);
-		si.si_code = ILL_PRVREG;
+		si_code = ILL_PRVREG;
 	give_sigill:
-		si.si_signo = SIGILL;
-		si.si_errno = 0;
-		si.si_addr = (void __user *) regs->iaoq[0];
-		force_sig_info(SIGILL, &si, current);
+		force_sig_fault(SIGILL, si_code,
+				(void __user *) regs->iaoq[0], current);
 		return;
 
 	case 12:
 		/* Overflow Trap, let the userland signal handler do the cleanup */
-		si.si_signo = SIGFPE;
-		si.si_code = FPE_INTOVF;
-		si.si_addr = (void __user *) regs->iaoq[0];
-		force_sig_info(SIGFPE, &si, current);
+		force_sig_fault(SIGFPE, FPE_INTOVF,
+				(void __user *) regs->iaoq[0], current);
 		return;
 		
 	case 13:
@@ -628,13 +617,11 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 		   The condition succeeds in an instruction which traps
 		   on condition  */
 		if(user_mode(regs)){
-			si.si_signo = SIGFPE;
 			/* Let userspace app figure it out from the insn pointed
 			 * to by si_addr.
 			 */
-			si.si_code = FPE_CONDTRAP;
-			si.si_addr = (void __user *) regs->iaoq[0];
-			force_sig_info(SIGFPE, &si, current);
+			force_sig_fault(SIGFPE, FPE_CONDTRAP,
+					(void __user *) regs->iaoq[0], current);
 			return;
 		} 
 		/* The kernel doesn't want to handle condition codes */
@@ -743,14 +730,10 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 			return;
 
 		die_if_kernel("Protection id trap", regs, code);
-		si.si_code = SEGV_MAPERR;
-		si.si_signo = SIGSEGV;
-		si.si_errno = 0;
-		if (code == 7)
-		    si.si_addr = (void __user *) regs->iaoq[0];
-		else
-		    si.si_addr = (void __user *) regs->ior;
-		force_sig_info(SIGSEGV, &si, current);
+		force_sig_fault(SIGSEGV, SEGV_MAPERR,
+				(code == 7)?
+				((void __user *) regs->iaoq[0]) :
+				((void __user *) regs->ior), current);
 		return;
 
 	case 28: 
@@ -764,11 +747,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 				"handle_interruption() pid=%d command='%s'\n",
 				task_pid_nr(current), current->comm);
 			/* SIGBUS, for lack of a better one. */
-			si.si_signo = SIGBUS;
-			si.si_code = BUS_OBJERR;
-			si.si_errno = 0;
-			si.si_addr = (void __user *) regs->ior;
-			force_sig_info(SIGBUS, &si, current);
+			force_sig_fault(SIGBUS, BUS_OBJERR,
+					(void __user *)regs->ior, current);
 			return;
 		}
 		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
@@ -783,11 +763,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 				"User fault %d on space 0x%08lx, pid=%d command='%s'\n",
 				code, fault_space,
 				task_pid_nr(current), current->comm);
-		si.si_signo = SIGSEGV;
-		si.si_errno = 0;
-		si.si_code = SEGV_MAPERR;
-		si.si_addr = (void __user *) regs->ior;
-		force_sig_info(SIGSEGV, &si, current);
+		force_sig_fault(SIGSEGV, SEGV_MAPERR,
+				(void __user *)regs->ior, current);
 		return;
 	    }
 	}
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index 30b7c7f6c471..932bfc0b7cd8 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -452,10 +452,8 @@ void handle_unaligned(struct pt_regs *regs)
 	unsigned long newbase = R1(regs->iir)?regs->gr[R1(regs->iir)]:0;
 	int modify = 0;
 	int ret = ERR_NOTHANDLED;
-	struct siginfo si;
 	register int flop=0;	/* true if this is a flop */
 
-	clear_siginfo(&si);
 	__inc_irq_stat(irq_unaligned_count);
 
 	/* log a message with pacing */
@@ -691,21 +689,15 @@ void handle_unaligned(struct pt_regs *regs)
 
 		if (ret == ERR_PAGEFAULT)
 		{
-			si.si_signo = SIGSEGV;
-			si.si_errno = 0;
-			si.si_code = SEGV_MAPERR;
-			si.si_addr = (void __user *)regs->ior;
-			force_sig_info(SIGSEGV, &si, current);
+			force_sig_fault(SIGSEGV, SEGV_MAPERR,
+					(void __user *)regs->ior, current);
 		}
 		else
 		{
 force_sigbus:
 			/* couldn't handle it ... */
-			si.si_signo = SIGBUS;
-			si.si_errno = 0;
-			si.si_code = BUS_ADRALN;
-			si.si_addr = (void __user *)regs->ior;
-			force_sig_info(SIGBUS, &si, current);
+			force_sig_fault(SIGBUS, BUS_ADRALN,
+					(void __user *)regs->ior, current);
 		}
 		
 		return;
diff --git a/arch/parisc/math-emu/driver.c b/arch/parisc/math-emu/driver.c
index 0d10efb53361..0590e05571d1 100644
--- a/arch/parisc/math-emu/driver.c
+++ b/arch/parisc/math-emu/driver.c
@@ -81,7 +81,6 @@ int
 handle_fpe(struct pt_regs *regs)
 {
 	extern void printbinary(unsigned long x, int nbits);
-	struct siginfo si;
 	unsigned int orig_sw, sw;
 	int signalcode;
 	/* need an intermediate copy of float regs because FPU emulation
@@ -93,7 +92,6 @@ handle_fpe(struct pt_regs *regs)
 	 */
 	__u64 frcopy[36];
 
-	clear_siginfo(&si);
 	memcpy(frcopy, regs->fr, sizeof regs->fr);
 	frcopy[32] = 0;
 
@@ -118,11 +116,8 @@ handle_fpe(struct pt_regs *regs)
 
 	memcpy(regs->fr, frcopy, sizeof regs->fr);
 	if (signalcode != 0) {
-	    si.si_signo = signalcode >> 24;
-	    si.si_errno = 0;
-	    si.si_code = signalcode & 0xffffff;
-	    si.si_addr = (void __user *) regs->iaoq[0];
-	    force_sig_info(si.si_signo, &si, current);
+	    force_sig_fault(signalcode >> 24, signalcode & 0xffffff,
+			    (void __user *) regs->iaoq[0], current);
 	    return -1;
 	}
 
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 51215b0048ef..a80117980fc2 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -353,23 +353,22 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	up_read(&mm->mmap_sem);
 
 	if (user_mode(regs)) {
-		struct siginfo si;
+		int signo, si_code;
 
-		clear_siginfo(&si);
 		switch (code) {
 		case 15:	/* Data TLB miss fault/Data page fault */
 			/* send SIGSEGV when outside of vma */
 			if (!vma ||
 			    address < vma->vm_start || address >= vma->vm_end) {
-				si.si_signo = SIGSEGV;
-				si.si_code = SEGV_MAPERR;
+				signo = SIGSEGV;
+				si_code = SEGV_MAPERR;
 				break;
 			}
 
 			/* send SIGSEGV for wrong permissions */
 			if ((vma->vm_flags & acc_type) != acc_type) {
-				si.si_signo = SIGSEGV;
-				si.si_code = SEGV_ACCERR;
+				signo = SIGSEGV;
+				si_code = SEGV_ACCERR;
 				break;
 			}
 
@@ -377,17 +376,16 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 			/* fall through */
 		case 17:	/* NA data TLB miss / page fault */
 		case 18:	/* Unaligned access - PCXS only */
-			si.si_signo = SIGBUS;
-			si.si_code = (code == 18) ? BUS_ADRALN : BUS_ADRERR;
+			signo = SIGBUS;
+			si_code = (code == 18) ? BUS_ADRALN : BUS_ADRERR;
 			break;
 		case 16:	/* Non-access instruction TLB miss fault */
 		case 26:	/* PCXL: Data memory access rights trap */
 		default:
-			si.si_signo = SIGSEGV;
-			si.si_code = (code == 26) ? SEGV_ACCERR : SEGV_MAPERR;
+			signo = SIGSEGV;
+			si_code = (code == 26) ? SEGV_ACCERR : SEGV_MAPERR;
 			break;
 		}
-
 #ifdef CONFIG_MEMORY_FAILURE
 		if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
 			unsigned int lsb = 0;
@@ -409,12 +407,9 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 			return;
 		}
 #endif
-
 		show_signal_msg(regs, code, address, tsk, vma);
 
-		si.si_errno = 0;
-		si.si_addr = (void __user *) address;
-		force_sig_info(si.si_signo, &si, current);
+		force_sig_fault(signo, si_code, (void __user *) address, current);
 		return;
 	}
 
-- 
2.14.1



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Subject: Re: [PATCH] parisc: time: Convert read_persistent_clock() to read_persistent_clock64()
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On Thu, Apr 19, 2018 at 8:51 AM, Baolin Wang <baolin.wang@linaro.org> wrote:
> The read_persistent_clock() uses a timespec, which is not year 2038 safe
> on 32bit systems. On parisc architecture, we have implemented generic RTC
> drivers that can be used to compensate the system suspend time, but the
> RTC time can not represent the nanosecond resolution, so this patch just
> converts to read_persistent_clock64() with timespec64.
>
> Signed-off-by: Baolin Wang <baolin.wang@linaro.org>

I have created the exact same patch a while ago but never submitted that.

If the parisc maintainers want to apply yours with my Ack, that
would be appreciated.

Acked-by: Arnd Bergmann <arnd@arndb.de>


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Subject: Re: [PATCH] parisc: time: Convert read_persistent_clock() to
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On 20.04.2018 17:23, Arnd Bergmann wrote:
> On Thu, Apr 19, 2018 at 8:51 AM, Baolin Wang <baolin.wang@linaro.org> wrote:
>> The read_persistent_clock() uses a timespec, which is not year 2038 safe
>> on 32bit systems. On parisc architecture, we have implemented generic RTC
>> drivers that can be used to compensate the system suspend time, but the
>> RTC time can not represent the nanosecond resolution, so this patch just
>> converts to read_persistent_clock64() with timespec64.
>>
>> Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
> 
> I have created the exact same patch a while ago but never submitted that.
> 
> If the parisc maintainers want to apply yours with my Ack, that
> would be appreciated.
> 
> Acked-by: Arnd Bergmann <arnd@arndb.de>

Thanks, I'll take it through the parisc git tree.

Helge


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Cc: Helge Deller <deller@gmx.de>, debian-hppa@lists.debian.org,
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To: Jeroen Roovers <jer@gentoo.org>, Frank Scheiner <frank.scheiner@web.de>
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Xref: news.gmane.org gmane.linux.debian.ports.hppa:7725 gmane.linux.ports.parisc:28541
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On 2018-04-20 5:24 AM, Jeroen Roovers wrote:
>> But later this week I retried the 712/80 with the current Linux
>> kernel (4.15.x) and Debian userland and the issue hit me again,
>> although much later and despite the 100 Mbit network switch in
>> between. Looking at it I could see that the collision indicator was
>> active on the switch for the port used by the 712/80. I then
>> configured a singular port of the 1000 Mbit network switch to 10 Mbit
>> full duplex and attached the 712/80 to it. And then the issue again
>> seemed to be gone. But trying to install a package or updating the
>> package cache again quickly triggered it.
> You could try setting the internal NIC to half-duplex, or perhaps use a
> (passive) 10BASE-T hub instead of a switch if you cannot configure that
> internally, on the kernel command line, or doing it in userland is too
> late.
 From the manual, it seems the 10BASE-T port is half duplex (CSMA/CD).  
The MAU
interface is definitely half duplex and the word duplex is not mentioned 
in the manual.

The 10BASE-T port probably doesn't support auto negotiation, so you will 
need to manually
set the switch port to 10BASE-T half duplex if it doesn't automatically 
configure to this mode
when auto negotiation fails.

Some switches support a half-duplex back pressure form of flow control.

Setting the switch port is probably easier than finding a passive 10BASE 
hub.

Dave


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc
Subject: Re: [REVIEW][PATCH 13/22] signal/parisc: Use force_sig_fault where
 appropriate
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Cc: linux-kernel@vger.kernel.org,
        James Bottomley <jejb@parisc-linux.org>,
        linux-parisc@vger.kernel.org
To: "Eric W. Biederman" <ebiederm@xmission.com>,
        linux-arch@vger.kernel.org
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On 20.04.2018 16:38, Eric W. Biederman wrote:
> Filling in struct siginfo before calling force_sig_info a tedious and
> error prone process, where once in a great while the wrong fields
> are filled out, and siginfo has been inconsistently cleared.
> 
> Simplify this process by using the helper force_sig_fault.  Which
> takes as a parameters all of the information it needs, ensures
> all of the fiddly bits of filling in struct siginfo are done properly
> and then calls force_sig_info.
> 
> In short about a 5 line reduction in code for every time force_sig_info
> is called, which makes the calling function clearer.
> 
> Cc: James Bottomley <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: linux-parisc@vger.kernel.org
> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

I pulled this whole patch series from your git tree and 
booted it on 32- and 64-bit parisc kernels.
 
Acked-by: Helge Deller <deller@gmx.de>   # parisc

Thanks!
Helge

> ---
>  arch/parisc/kernel/ptrace.c    | 11 ++------
>  arch/parisc/kernel/traps.c     | 63 ++++++++++++++----------------------------
>  arch/parisc/kernel/unaligned.c | 16 +++--------
>  arch/parisc/math-emu/driver.c  |  9 ++----
>  arch/parisc/mm/fault.c         | 25 +++++++----------
>  5 files changed, 39 insertions(+), 85 deletions(-)
> 
> diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
> index b1c12ceb1c88..7aa1d4d0d444 100644
> --- a/arch/parisc/kernel/ptrace.c
> +++ b/arch/parisc/kernel/ptrace.c
> @@ -76,8 +76,6 @@ void user_enable_single_step(struct task_struct *task)
>  	set_tsk_thread_flag(task, TIF_SINGLESTEP);
>  
>  	if (pa_psw(task)->n) {
> -		struct siginfo si;
> -
>  		/* Nullified, just crank over the queue. */
>  		task_regs(task)->iaoq[0] = task_regs(task)->iaoq[1];
>  		task_regs(task)->iasq[0] = task_regs(task)->iasq[1];
> @@ -90,12 +88,9 @@ void user_enable_single_step(struct task_struct *task)
>  		ptrace_disable(task);
>  		/* Don't wake up the task, but let the
>  		   parent know something happened. */
> -		clear_siginfo(&si);
> -		si.si_code = TRAP_TRACE;
> -		si.si_addr = (void __user *) (task_regs(task)->iaoq[0] & ~3);
> -		si.si_signo = SIGTRAP;
> -		si.si_errno = 0;
> -		force_sig_info(SIGTRAP, &si, task);
> +		force_sig_fault(SIGTRAP, TRAP_TRACE,
> +				(void __user *) (task_regs(task)->iaoq[0] & ~3),
> +				task);
>  		/* notify_parent(task, SIGCHLD); */
>  		return;
>  	}
> diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
> index 98f9f2f85940..132b09c657ff 100644
> --- a/arch/parisc/kernel/traps.c
> +++ b/arch/parisc/kernel/traps.c
> @@ -297,14 +297,8 @@ void die_if_kernel(char *str, struct pt_regs *regs, long err)
>  #define GDB_BREAK_INSN 0x10004
>  static void handle_gdb_break(struct pt_regs *regs, int wot)
>  {
> -	struct siginfo si;
> -
> -	clear_siginfo(&si);
> -	si.si_signo = SIGTRAP;
> -	si.si_errno = 0;
> -	si.si_code = wot;
> -	si.si_addr = (void __user *) (regs->iaoq[0] & ~3);
> -	force_sig_info(SIGTRAP, &si, current);
> +	force_sig_fault(SIGTRAP, wot,
> +			(void __user *) (regs->iaoq[0] & ~3), current);
>  }
>  
>  static void handle_break(struct pt_regs *regs)
> @@ -488,9 +482,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
>  {
>  	unsigned long fault_address = 0;
>  	unsigned long fault_space = 0;
> -	struct siginfo si;
> +	int si_code;
>  
> -	clear_siginfo(&si);
>  	if (code == 1)
>  	    pdc_console_restart();  /* switch back to pdc if HPMC */
>  	else
> @@ -573,7 +566,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
>  	case  8:
>  		/* Illegal instruction trap */
>  		die_if_kernel("Illegal instruction", regs, code);
> -		si.si_code = ILL_ILLOPC;
> +		si_code = ILL_ILLOPC;
>  		goto give_sigill;
>  
>  	case  9:
> @@ -584,7 +577,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
>  	case 10:
>  		/* Privileged operation trap */
>  		die_if_kernel("Privileged operation", regs, code);
> -		si.si_code = ILL_PRVOPC;
> +		si_code = ILL_PRVOPC;
>  		goto give_sigill;
>  
>  	case 11:
> @@ -607,20 +600,16 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
>  		}
>  
>  		die_if_kernel("Privileged register usage", regs, code);
> -		si.si_code = ILL_PRVREG;
> +		si_code = ILL_PRVREG;
>  	give_sigill:
> -		si.si_signo = SIGILL;
> -		si.si_errno = 0;
> -		si.si_addr = (void __user *) regs->iaoq[0];
> -		force_sig_info(SIGILL, &si, current);
> +		force_sig_fault(SIGILL, si_code,
> +				(void __user *) regs->iaoq[0], current);
>  		return;
>  
>  	case 12:
>  		/* Overflow Trap, let the userland signal handler do the cleanup */
> -		si.si_signo = SIGFPE;
> -		si.si_code = FPE_INTOVF;
> -		si.si_addr = (void __user *) regs->iaoq[0];
> -		force_sig_info(SIGFPE, &si, current);
> +		force_sig_fault(SIGFPE, FPE_INTOVF,
> +				(void __user *) regs->iaoq[0], current);
>  		return;
>  		
>  	case 13:
> @@ -628,13 +617,11 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
>  		   The condition succeeds in an instruction which traps
>  		   on condition  */
>  		if(user_mode(regs)){
> -			si.si_signo = SIGFPE;
>  			/* Let userspace app figure it out from the insn pointed
>  			 * to by si_addr.
>  			 */
> -			si.si_code = FPE_CONDTRAP;
> -			si.si_addr = (void __user *) regs->iaoq[0];
> -			force_sig_info(SIGFPE, &si, current);
> +			force_sig_fault(SIGFPE, FPE_CONDTRAP,
> +					(void __user *) regs->iaoq[0], current);
>  			return;
>  		} 
>  		/* The kernel doesn't want to handle condition codes */
> @@ -743,14 +730,10 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
>  			return;
>  
>  		die_if_kernel("Protection id trap", regs, code);
> -		si.si_code = SEGV_MAPERR;
> -		si.si_signo = SIGSEGV;
> -		si.si_errno = 0;
> -		if (code == 7)
> -		    si.si_addr = (void __user *) regs->iaoq[0];
> -		else
> -		    si.si_addr = (void __user *) regs->ior;
> -		force_sig_info(SIGSEGV, &si, current);
> +		force_sig_fault(SIGSEGV, SEGV_MAPERR,
> +				(code == 7)?
> +				((void __user *) regs->iaoq[0]) :
> +				((void __user *) regs->ior), current);
>  		return;
>  
>  	case 28: 
> @@ -764,11 +747,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
>  				"handle_interruption() pid=%d command='%s'\n",
>  				task_pid_nr(current), current->comm);
>  			/* SIGBUS, for lack of a better one. */
> -			si.si_signo = SIGBUS;
> -			si.si_code = BUS_OBJERR;
> -			si.si_errno = 0;
> -			si.si_addr = (void __user *) regs->ior;
> -			force_sig_info(SIGBUS, &si, current);
> +			force_sig_fault(SIGBUS, BUS_OBJERR,
> +					(void __user *)regs->ior, current);
>  			return;
>  		}
>  		pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
> @@ -783,11 +763,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
>  				"User fault %d on space 0x%08lx, pid=%d command='%s'\n",
>  				code, fault_space,
>  				task_pid_nr(current), current->comm);
> -		si.si_signo = SIGSEGV;
> -		si.si_errno = 0;
> -		si.si_code = SEGV_MAPERR;
> -		si.si_addr = (void __user *) regs->ior;
> -		force_sig_info(SIGSEGV, &si, current);
> +		force_sig_fault(SIGSEGV, SEGV_MAPERR,
> +				(void __user *)regs->ior, current);
>  		return;
>  	    }
>  	}
> diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
> index 30b7c7f6c471..932bfc0b7cd8 100644
> --- a/arch/parisc/kernel/unaligned.c
> +++ b/arch/parisc/kernel/unaligned.c
> @@ -452,10 +452,8 @@ void handle_unaligned(struct pt_regs *regs)
>  	unsigned long newbase = R1(regs->iir)?regs->gr[R1(regs->iir)]:0;
>  	int modify = 0;
>  	int ret = ERR_NOTHANDLED;
> -	struct siginfo si;
>  	register int flop=0;	/* true if this is a flop */
>  
> -	clear_siginfo(&si);
>  	__inc_irq_stat(irq_unaligned_count);
>  
>  	/* log a message with pacing */
> @@ -691,21 +689,15 @@ void handle_unaligned(struct pt_regs *regs)
>  
>  		if (ret == ERR_PAGEFAULT)
>  		{
> -			si.si_signo = SIGSEGV;
> -			si.si_errno = 0;
> -			si.si_code = SEGV_MAPERR;
> -			si.si_addr = (void __user *)regs->ior;
> -			force_sig_info(SIGSEGV, &si, current);
> +			force_sig_fault(SIGSEGV, SEGV_MAPERR,
> +					(void __user *)regs->ior, current);
>  		}
>  		else
>  		{
>  force_sigbus:
>  			/* couldn't handle it ... */
> -			si.si_signo = SIGBUS;
> -			si.si_errno = 0;
> -			si.si_code = BUS_ADRALN;
> -			si.si_addr = (void __user *)regs->ior;
> -			force_sig_info(SIGBUS, &si, current);
> +			force_sig_fault(SIGBUS, BUS_ADRALN,
> +					(void __user *)regs->ior, current);
>  		}
>  		
>  		return;
> diff --git a/arch/parisc/math-emu/driver.c b/arch/parisc/math-emu/driver.c
> index 0d10efb53361..0590e05571d1 100644
> --- a/arch/parisc/math-emu/driver.c
> +++ b/arch/parisc/math-emu/driver.c
> @@ -81,7 +81,6 @@ int
>  handle_fpe(struct pt_regs *regs)
>  {
>  	extern void printbinary(unsigned long x, int nbits);
> -	struct siginfo si;
>  	unsigned int orig_sw, sw;
>  	int signalcode;
>  	/* need an intermediate copy of float regs because FPU emulation
> @@ -93,7 +92,6 @@ handle_fpe(struct pt_regs *regs)
>  	 */
>  	__u64 frcopy[36];
>  
> -	clear_siginfo(&si);
>  	memcpy(frcopy, regs->fr, sizeof regs->fr);
>  	frcopy[32] = 0;
>  
> @@ -118,11 +116,8 @@ handle_fpe(struct pt_regs *regs)
>  
>  	memcpy(regs->fr, frcopy, sizeof regs->fr);
>  	if (signalcode != 0) {
> -	    si.si_signo = signalcode >> 24;
> -	    si.si_errno = 0;
> -	    si.si_code = signalcode & 0xffffff;
> -	    si.si_addr = (void __user *) regs->iaoq[0];
> -	    force_sig_info(si.si_signo, &si, current);
> +	    force_sig_fault(signalcode >> 24, signalcode & 0xffffff,
> +			    (void __user *) regs->iaoq[0], current);
>  	    return -1;
>  	}
>  
> diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
> index 51215b0048ef..a80117980fc2 100644
> --- a/arch/parisc/mm/fault.c
> +++ b/arch/parisc/mm/fault.c
> @@ -353,23 +353,22 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
>  	up_read(&mm->mmap_sem);
>  
>  	if (user_mode(regs)) {
> -		struct siginfo si;
> +		int signo, si_code;
>  
> -		clear_siginfo(&si);
>  		switch (code) {
>  		case 15:	/* Data TLB miss fault/Data page fault */
>  			/* send SIGSEGV when outside of vma */
>  			if (!vma ||
>  			    address < vma->vm_start || address >= vma->vm_end) {
> -				si.si_signo = SIGSEGV;
> -				si.si_code = SEGV_MAPERR;
> +				signo = SIGSEGV;
> +				si_code = SEGV_MAPERR;
>  				break;
>  			}
>  
>  			/* send SIGSEGV for wrong permissions */
>  			if ((vma->vm_flags & acc_type) != acc_type) {
> -				si.si_signo = SIGSEGV;
> -				si.si_code = SEGV_ACCERR;
> +				signo = SIGSEGV;
> +				si_code = SEGV_ACCERR;
>  				break;
>  			}
>  
> @@ -377,17 +376,16 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
>  			/* fall through */
>  		case 17:	/* NA data TLB miss / page fault */
>  		case 18:	/* Unaligned access - PCXS only */
> -			si.si_signo = SIGBUS;
> -			si.si_code = (code == 18) ? BUS_ADRALN : BUS_ADRERR;
> +			signo = SIGBUS;
> +			si_code = (code == 18) ? BUS_ADRALN : BUS_ADRERR;
>  			break;
>  		case 16:	/* Non-access instruction TLB miss fault */
>  		case 26:	/* PCXL: Data memory access rights trap */
>  		default:
> -			si.si_signo = SIGSEGV;
> -			si.si_code = (code == 26) ? SEGV_ACCERR : SEGV_MAPERR;
> +			signo = SIGSEGV;
> +			si_code = (code == 26) ? SEGV_ACCERR : SEGV_MAPERR;
>  			break;
>  		}
> -
>  #ifdef CONFIG_MEMORY_FAILURE
>  		if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
>  			unsigned int lsb = 0;
> @@ -409,12 +407,9 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
>  			return;
>  		}
>  #endif
> -
>  		show_signal_msg(regs, code, address, tsk, vma);
>  
> -		si.si_errno = 0;
> -		si.si_addr = (void __user *) address;
> -		force_sig_info(si.si_signo, &si, current);
> +		force_sig_fault(signo, si_code, (void __user *) address, current);
>  		return;
>  	}
>  
> 



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Subject: Re: [PATCH 22/22] parisc: use generic dma_noncoherent_ops
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Cc: linux-arch@vger.kernel.org, Michal Simek <monstr@monstr.eu>,
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On 20.04.2018 10:03, Christoph Hellwig wrote:
> Switch to the generic noncoherent direct mapping implementation.
> 
> Parisc previously had two different non-coherent dma ops implementation
> that just different in the way coherent allocations were handled or not
> handled.  The different behavior is not selected at runtime in the
> arch_dma_alloc and arch_dma_free routines.  The non-coherent allocation
> in the pcx cases now uses the dma_direct helpers that are a little more
> sophisticated and used by a lot of other architectures.
> 
> Fix sync_single_for_cpu to do skip the cache flush unless the transfer
> is to the device to match the more tested unmap_single path which should
> have the same cache coherency implications.
> 
> This also now consistenly uses flush_kernel_dcache_range for cache
> flushing while previously some of the SG based operations used
> flush_kernel_vmap_range instead.


This patch breaks a 32bit kernel on a B160L machine (PA7300LC CPU, "pcxl2").
After applying this patch series the lasi82956 network driver works unreliable. 
NIC gets IP, but ping doesn't work.
See drivers/net/ethernet/i825xx/lasi_82596.c, it uses dma*sync() functions.

Helge

 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  arch/parisc/Kconfig                   |   4 +
>  arch/parisc/include/asm/dma-mapping.h |   5 -
>  arch/parisc/kernel/pci-dma.c          | 181 ++++----------------------
>  arch/parisc/kernel/setup.c            |   8 +-
>  arch/parisc/mm/init.c                 |  11 +-
>  5 files changed, 35 insertions(+), 174 deletions(-)
> 
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index 47047f0cbe35..80166a1cbcb7 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -188,6 +188,10 @@ config PA20
>  config PA11
>  	def_bool y
>  	depends on PA7000 || PA7100LC || PA7200 || PA7300LC
> +	select ARCH_HAS_SYNC_DMA_FOR_CPU
> +	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
> +	select DMA_NONCOHERENT_OPS
> +	select DMA_NONCOHERENT_CACHE_SYNC
>  
>  config PREFETCH
>  	def_bool y
> diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
> index 01e1fc057c83..44a9f97194aa 100644
> --- a/arch/parisc/include/asm/dma-mapping.h
> +++ b/arch/parisc/include/asm/dma-mapping.h
> @@ -21,11 +21,6 @@
>  ** flush/purge and allocate "regular" cacheable pages for everything.
>  */
>  
> -#ifdef CONFIG_PA11
> -extern const struct dma_map_ops pcxl_dma_ops;
> -extern const struct dma_map_ops pcx_dma_ops;
> -#endif
> -
>  extern const struct dma_map_ops *hppa_dma_ops;
>  
>  static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
> diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
> index 91bc0cac03a1..235e2e53959e 100644
> --- a/arch/parisc/kernel/pci-dma.c
> +++ b/arch/parisc/kernel/pci-dma.c
> @@ -21,13 +21,12 @@
>  #include <linux/init.h>
>  #include <linux/gfp.h>
>  #include <linux/mm.h>
> -#include <linux/pci.h>
>  #include <linux/proc_fs.h>
>  #include <linux/seq_file.h>
>  #include <linux/string.h>
>  #include <linux/types.h>
> -#include <linux/scatterlist.h>
> -#include <linux/export.h>
> +#include <linux/dma-direct.h>
> +#include <linux/dma-noncoherent.h>
>  
>  #include <asm/cacheflush.h>
>  #include <asm/dma.h>    /* for DMA_CHUNK_SIZE */
> @@ -447,178 +446,48 @@ static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
>  	free_pages((unsigned long)__va(dma_handle), order);
>  }
>  
> -static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
> -		unsigned long offset, size_t size,
> -		enum dma_data_direction direction, unsigned long attrs)
> +void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
> +		size_t size, enum dma_data_direction dir)
>  {
> -	void *addr = page_address(page) + offset;
> -	BUG_ON(direction == DMA_NONE);
> -
> -	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> -		flush_kernel_dcache_range((unsigned long) addr, size);
> -
> -	return virt_to_phys(addr);
> +	flush_kernel_dcache_range((unsigned long)phys_to_virt(paddr), size);
>  }
>  
> -static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
> -		size_t size, enum dma_data_direction direction,
> -		unsigned long attrs)
> +void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
> +		size_t size, enum dma_data_direction dir)
>  {
> -	BUG_ON(direction == DMA_NONE);
> -
> -	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
> -		return;
> -
> -	if (direction == DMA_TO_DEVICE)
> +	if (dir == DMA_TO_DEVICE)
>  		return;
>  
>  	/*
> -	 * For PCI_DMA_FROMDEVICE this flush is not necessary for the
> +	 * For DMA_FROM_DEVICE this flush is not necessary for the
>  	 * simple map/unmap case. However, it IS necessary if if
> -	 * pci_dma_sync_single_* has been called and the buffer reused.
> +	 * dma_sync_single_* has been called and the buffer reused.
>  	 */
>  
> -	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle), size);
> -}
> -
> -static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
> -		int nents, enum dma_data_direction direction,
> -		unsigned long attrs)
> -{
> -	int i;
> -	struct scatterlist *sg;
> -
> -	BUG_ON(direction == DMA_NONE);
> -
> -	for_each_sg(sglist, sg, nents, i) {
> -		unsigned long vaddr = (unsigned long)sg_virt(sg);
> -
> -		sg_dma_address(sg) = (dma_addr_t) virt_to_phys(vaddr);
> -		sg_dma_len(sg) = sg->length;
> -
> -		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
> -			continue;
> -
> -		flush_kernel_dcache_range(vaddr, sg->length);
> -	}
> -	return nents;
> +	flush_kernel_dcache_range((unsigned long)phys_to_virt(paddr), size);
>  }
>  
> -static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
> -		int nents, enum dma_data_direction direction,
> -		unsigned long attrs)
> -{
> -	int i;
> -	struct scatterlist *sg;
> -
> -	BUG_ON(direction == DMA_NONE);
> -
> -	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
> -		return;
> -
> -	if (direction == DMA_TO_DEVICE)
> -		return;
> -
> -	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
> -
> -	for_each_sg(sglist, sg, nents, i)
> -		flush_kernel_vmap_range(sg_virt(sg), sg->length);
> -}
> -
> -static void pa11_dma_sync_single_for_cpu(struct device *dev,
> -		dma_addr_t dma_handle, size_t size,
> -		enum dma_data_direction direction)
> -{
> -	BUG_ON(direction == DMA_NONE);
> -
> -	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
> -			size);
> -}
> -
> -static void pa11_dma_sync_single_for_device(struct device *dev,
> -		dma_addr_t dma_handle, size_t size,
> -		enum dma_data_direction direction)
> -{
> -	BUG_ON(direction == DMA_NONE);
> -
> -	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
> -			size);
> -}
> -
> -static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
> -{
> -	int i;
> -	struct scatterlist *sg;
> -
> -	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
> -
> -	for_each_sg(sglist, sg, nents, i)
> -		flush_kernel_vmap_range(sg_virt(sg), sg->length);
> -}
> -
> -static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
> -{
> -	int i;
> -	struct scatterlist *sg;
> -
> -	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
> -
> -	for_each_sg(sglist, sg, nents, i)
> -		flush_kernel_vmap_range(sg_virt(sg), sg->length);
> -}
> -
> -static void pa11_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
> +void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
>  	       enum dma_data_direction direction)
>  {
>  	flush_kernel_dcache_range((unsigned long)vaddr, size);
>  }
>  
> -const struct dma_map_ops pcxl_dma_ops = {
> -	.alloc =		pa11_dma_alloc,
> -	.free =			pa11_dma_free,
> -	.map_page =		pa11_dma_map_page,
> -	.unmap_page =		pa11_dma_unmap_page,
> -	.map_sg =		pa11_dma_map_sg,
> -	.unmap_sg =		pa11_dma_unmap_sg,
> -	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
> -	.sync_single_for_device = pa11_dma_sync_single_for_device,
> -	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
> -	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
> -	.cache_sync =		pa11_dma_cache_sync,
> -};
> -
> -static void *pcx_dma_alloc(struct device *dev, size_t size,
> -		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
> +void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
> +		gfp_t gfp, unsigned long attrs)
>  {
> -	void *addr;
> -
> -	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0)
> -		return NULL;
> -
> -	addr = (void *)__get_free_pages(flag, get_order(size));
> -	if (addr)
> -		*dma_handle = (dma_addr_t)virt_to_phys(addr);
> -
> -	return addr;
> +	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl)
> +		return pa11_dma_alloc(dev, size, dma_handle, gfp, attrs);
> +	if (attrs & DMA_ATTR_NON_CONSISTENT)
> +		return dma_direct_alloc(dev, size, dma_handle, gfp, attrs);
> +	return NULL;
>  }
>  
> -static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
> -		dma_addr_t iova, unsigned long attrs)
> +void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
> +		dma_addr_t dma_addr, unsigned long attrs)
>  {
> -	free_pages((unsigned long)vaddr, get_order(size));
> -	return;
> +	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl)
> +		pa11_dma_free(dev, size, cpu_addr, dma_addr, attrs);
> +	else
> +		dma_direct_free(dev, size, cpu_addr, dma_addr, attrs);
>  }
> -
> -const struct dma_map_ops pcx_dma_ops = {
> -	.alloc =		pcx_dma_alloc,
> -	.free =			pcx_dma_free,
> -	.map_page =		pa11_dma_map_page,
> -	.unmap_page =		pa11_dma_unmap_page,
> -	.map_sg =		pa11_dma_map_sg,
> -	.unmap_sg =		pa11_dma_unmap_sg,
> -	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
> -	.sync_single_for_device = pa11_dma_sync_single_for_device,
> -	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
> -	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
> -	.cache_sync =		pa11_dma_cache_sync,
> -};
> diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
> index 8d3a7b80ac42..4e87c35c22b7 100644
> --- a/arch/parisc/kernel/setup.c
> +++ b/arch/parisc/kernel/setup.c
> @@ -97,14 +97,12 @@ void __init dma_ops_init(void)
>  		panic(	"PA-RISC Linux currently only supports machines that conform to\n"
>  			"the PA-RISC 1.1 or 2.0 architecture specification.\n");
>  
> -	case pcxs:
> -	case pcxt:
> -		hppa_dma_ops = &pcx_dma_ops;
> -		break;
>  	case pcxl2:
>  		pa7300lc_init();
>  	case pcxl: /* falls through */
> -		hppa_dma_ops = &pcxl_dma_ops;
> +	case pcxs:
> +	case pcxt:
> +		hppa_dma_ops = &dma_noncoherent_ops;
>  		break;
>  	default:
>  		break;
> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> index cab32ee824d2..4ad91c28ecbe 100644
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -19,7 +19,6 @@
>  #include <linux/gfp.h>
>  #include <linux/delay.h>
>  #include <linux/init.h>
> -#include <linux/pci.h>		/* for hppa_dma_ops and pcxl_dma_ops */
>  #include <linux/initrd.h>
>  #include <linux/swap.h>
>  #include <linux/unistd.h>
> @@ -616,17 +615,13 @@ void __init mem_init(void)
>  	free_all_bootmem();
>  
>  #ifdef CONFIG_PA11
> -	if (hppa_dma_ops == &pcxl_dma_ops) {
> +	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl) {
>  		pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
>  		parisc_vmalloc_start = SET_MAP_OFFSET(pcxl_dma_start
>  						+ PCXL_DMA_MAP_SIZE);
> -	} else {
> -		pcxl_dma_start = 0;
> -		parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
> -	}
> -#else
> -	parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
> +	} else
>  #endif
> +		parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
>  
>  	mem_init_print_info(NULL);
>  
> 

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On 2018-04-20 2:37 AM, Helge Deller wrote:
>> Also interesting, the kernel messages for 4.15.11, please notice the
>> time difference between "random: crng init done" and "Key type
>> asymmetric registered":
> Seems to be a generic issue.
> https://www.linuxquestions.org/questions/showthread.php?p=5803405#post5803405
>
> My assumption is, that the kernel waits until it has
> enough randomness for the various encryption algorithms.
I think this is caused by cryptomgr_test.  It can be disabled with 
"cryptomgr.notests" on command
line.

Dave


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Subject: Re: [PATCH 22/22] parisc: use generic dma_noncoherent_ops
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On Fri, 2018-04-20 at 10:03 +0200, Christoph Hellwig wrote:
> diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
> index 8d3a7b80ac42..4e87c35c22b7 100644
> --- a/arch/parisc/kernel/setup.c
> +++ b/arch/parisc/kernel/setup.c
> @@ -97,14 +97,12 @@ void __init dma_ops_init(void)
>  		panic(	"PA-RISC Linux currently only supports
> machines that conform to\n"
>  			"the PA-RISC 1.1 or 2.0 architecture
> specification.\n");
>  
> -	case pcxs:
> -	case pcxt:
> -		hppa_dma_ops = &pcx_dma_ops;
> -		break;
>  	case pcxl2:
>  		pa7300lc_init();
>  	case pcxl: /* falls through */
> -		hppa_dma_ops = &pcxl_dma_ops;
> +	case pcxs:
> +	case pcxt:
> +		hppa_dma_ops = &dma_noncoherent_ops;
>  		break;
>  	default:
>  		break;

Well, this is wrong: you just made every 32 bit parisc system
unnecessarily use non-coherent.  We actually only have a small small
set of non-coherent systems.  The pxcs and pcxt systems (which are
about 99% of the user base) can use coherent dma ops.  The problem
seems to be in your new world you only have one dma_noncoherent_ops
pointer ... we definitely need two on parisc, so whether
arch_dma_cache_sync is present or not needs to be dynamic not config
defined.

James



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On Sat, 2018-04-21 at 19:43 +0200, Helge Deller wrote:
> On 20.04.2018 10:03, Christoph Hellwig wrote:
> > Switch to the generic noncoherent direct mapping implementation.
> > 
> > Parisc previously had two different non-coherent dma ops
> > implementation that just different in the way coherent allocations
> > were handled or not handled.  The different behavior is not
> > selected at runtime in the arch_dma_alloc and arch_dma_free
> > routines.  The non-coherent allocation in the pcx cases now uses
> > the dma_direct helpers that are a little more sophisticated and
> > used by a lot of other architectures.
> > 
> > Fix sync_single_for_cpu to do skip the cache flush unless the
> > transfer is to the device to match the more tested unmap_single
> > path which should have the same cache coherency implications.
> > 
> > This also now consistenly uses flush_kernel_dcache_range for cache
> > flushing while previously some of the SG based operations used
> > flush_kernel_vmap_range instead.
> 
> 
> This patch breaks a 32bit kernel on a B160L machine (PA7300LC CPU,
> "pcxl2"). After applying this patch series the lasi82956 network
> driver works unreliable.  NIC gets IP, but ping doesn't work.
> See drivers/net/ethernet/i825xx/lasi_82596.c, it uses dma*sync()
> functions.

That's actually a weird result.  The 32 bit machines have two cases:
those that can make uncached memory by setting the U bit (and thus
don't need the sync operations in the lasi and D700 drivers) and those
that can't.  The latter is basically only the old 700 series.  The B180
is in the class of can set pages to uncached, so it sounds like
something in our uncached memory allocation for dma areas is failing
after this patch set.

I still have an old 700 in my box of curiosities, so I can try to dust
it off and plug it back in when I get home to see what it makes of the
series when it gets fixed.

James

James



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On 21.04.2018 21:12, John David Anglin wrote:
> On 2018-04-20 2:37 AM, Helge Deller wrote:
>>> Also interesting, the kernel messages for 4.15.11, please notice the
>>> time difference between "random: crng init done" and "Key type
>>> asymmetric registered":
>> Seems to be a generic issue.
>> https://www.linuxquestions.org/questions/showthread.php?p=5803405#post5803405
>>
>> My assumption is, that the kernel waits until it has
>> enough randomness for the various encryption algorithms.

> I think this is caused by cryptomgr_test.
> It can be disabled with "cryptomgr.notests" on command line.

Did you tested this?
Unless I typed it wrong it didn't worked on my B160L:
[    0.000000] Kernel command line: root=/dev/sda5 crpytomgr.notests HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
...
[   15.549370] workingset: timestamp_bits=14 max_order=15 bucket_order=1
[   15.688261] zbud: loaded
[   57.608154] random: crng init done
...long delay here...
[  207.522038] Key type asymmetric registered
[  207.574154] Asymmetric key parser 'x509' registered
[  207.635883] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[  207.729718] io scheduler noop registered

Helge



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On 2018-04-21 6:17 PM, Helge Deller wrote:
>> It can be disabled with "cryptomgr.notests" on command line.
> Did you tested this?
Not recently.  I found this when I was working on the cache.TLB patch.  
It caused a stall in one version.
> Unless I typed it wrong it didn't worked on my B160L:
> [    0.000000] Kernel command line: root=/dev/sda5 crpytomgr.notests HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
You typed it wrong.

Dave


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On 22.04.2018 00:36, John David Anglin wrote:
> On 2018-04-21 6:17 PM, Helge Deller wrote:
>>> It can be disabled with "cryptomgr.notests" on command line.
>> Did you tested this?
> Not recently.  I found this when I was working on the cache.TLB patch.  It caused a stall in one version.
>> Unless I typed it wrong it didn't worked on my B160L:
>> [    0.000000] Kernel command line: root=/dev/sda5 crpytomgr.notests HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux

> You typed it wrong.

Yes, my fault.
"cryptomgr.notests" did worked as expected.
Thanks!
Helge
 



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On 04/20/2018 11:24 AM, Jeroen Roovers wrote:
> You could try setting the internal NIC to half-duplex, or perhaps use a
> (passive) 10BASE-T hub instead of a switch if you cannot configure that
> internally, on the kernel command line, or doing it in userland is too
> late.

I actually had the port configured to half-duplex at first. But I was 
distracted by the high number of collisions taking place and so changed 
it to full-duplex.

Cheers,
Frank



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On 04/21/2018 02:22 AM, John David Anglin wrote:
>  From the manual, it seems the 10BASE-T port is half duplex (CSMA/CD). 
> The MAU
> interface is definitely half duplex and the word duplex is not mentioned 
> in the manual.

I also didn't find any info about half-/full-duplex in the two manuals I 
have at hand for the 712/80 ("Service Handbook" and "Technical Reference 
Manual"). To be sure, which one did you consult?

> 
> The 10BASE-T port probably doesn't support auto negotiation, so you will 
> need to manually
> set the switch port to 10BASE-T half duplex if it doesn't automatically 
> configure to this mode
> when auto negotiation fails.

Did this at first but then went for full-duplex again. Today I started 
with full-duplex and actively cooling the heatsink (now smoothed and 
with fresh thermal grease applied) of the 712/80's processor, but that 
didn't help alone. The issue hit me after entering the password during 
login.

Then I reconfigured half-duplex and tried again. The machine now worked 
through the whole login and I could also do an `apt update` without 
issues afterwards. Then I let it alone for about twenty minutes and on 
return I did an `apt list --upgradable` which triggered the issue again.

:-/

> 
> Some switches support a half-duplex back pressure form of flow control.

I'll try that now. According to the documentation my switch can create 
back-pressure as form of flow control.

Cheers,
Frank



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On 04/22/2018 11:06 AM, Helge Deller wrote:
> On 22.04.2018 00:36, John David Anglin wrote:
>> On 2018-04-21 6:17 PM, Helge Deller wrote:
>>>> It can be disabled with "cryptomgr.notests" on command line.
>>> Did you tested this?
>> Not recently.  I found this when I was working on the cache.TLB patch.  It caused a stall in one version.
>>> Unless I typed it wrong it didn't worked on my B160L:
>>> [    0.000000] Kernel command line: root=/dev/sda5 crpytomgr.notests HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vmlinux
> 
>> You typed it wrong.
> 
> Yes, my fault.
> "cryptomgr.notests" did worked as expected.

Great, that's pretty useful for slower machines like the 712/80.

Cheers,
Frank



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On 2018-04-22 3:17 PM, Frank Scheiner wrote:
> On 04/21/2018 02:22 AM, John David Anglin wrote:
>>  From the manual, it seems the 10BASE-T port is half duplex 
>> (CSMA/CD). The MAU
>> interface is definitely half duplex and the word duplex is not 
>> mentioned in the manual.
>
> I also didn't find any info about half-/full-duplex in the two manuals 
> I have at hand for the 712/80 ("Service Handbook" and "Technical 
> Reference Manual"). To be sure, which one did you consult?
I looked at the "Technical Reference".
>
>>
>> The 10BASE-T port probably doesn't support auto negotiation, so you 
>> will need to manually
>> set the switch port to 10BASE-T half duplex if it doesn't 
>> automatically configure to this mode
>> when auto negotiation fails.
>
> Did this at first but then went for full-duplex again. Today I started 
> with full-duplex and actively cooling the heatsink (now smoothed and 
> with fresh thermal grease applied) of the 712/80's processor, but that 
> didn't help alone. The issue hit me after entering the password during 
> login.
>
> Then I reconfigured half-duplex and tried again. The machine now 
> worked through the whole login and I could also do an `apt update` 
> without issues afterwards. Then I let it alone for about twenty 
> minutes and on return I did an `apt list --upgradable` which triggered 
> the issue again.
Seems like hardware problem, probably in 712.  The switch and 712 need 
to be in same mode.  If my supposition about the 712
only supporting half duplex is correct, then the switch will have to be 
in half duplex.  I think network boot and `apt update`
would be a sufficient test of the network configuration.  Without error 
messages, this is hard.
>
> :-/
>
>>
>> Some switches support a half-duplex back pressure form of flow control.
>
> I'll try that now. According to the documentation my switch can create 
> back-pressure as form of flow control.
It's possible flow control on the server port might help given that the 
712 is so slow and probably
needs half duplex.  The switch might drop packets as a result. However, 
IP usually adjusts for slow segments.

Dave


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Subject: Re: [PATCH 13/22] nds32: use generic dma_noncoherent_ops
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2018-04-20 16:03 GMT+08:00 Christoph Hellwig <hch@lst.de>:
> Switch to the generic noncoherent direct mapping implementation.
>
> This makes sure kmap_atomic_pfn is consistently used for access to
> virtual addresses instead of either using the slower plain kmap
> or blindly expecting page_address() to work.
>
> This makes sure the cache_sync routines is called in the unmap_sg
> case, to match the unmap_single and sync_{single,sg}_to_cpu cases.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  arch/nds32/Kconfig                   |   3 +
>  arch/nds32/include/asm/Kbuild        |   1 +
>  arch/nds32/include/asm/dma-mapping.h |  14 ---
>  arch/nds32/kernel/dma.c              | 182 ++++++---------------------
>  4 files changed, 39 insertions(+), 161 deletions(-)
>  delete mode 100644 arch/nds32/include/asm/dma-mapping.h
>
> diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
> index 249f38d3388f..67d0ac0a989c 100644
> --- a/arch/nds32/Kconfig
> +++ b/arch/nds32/Kconfig
> @@ -5,10 +5,13 @@
>
>  config NDS32
>          def_bool y
> +       select ARCH_HAS_SYNC_DMA_FOR_CPU
> +       select ARCH_HAS_SYNC_DMA_FOR_DEVICE
>         select ARCH_WANT_FRAME_POINTERS if FTRACE
>         select CLKSRC_MMIO
>         select CLONE_BACKWARDS
>         select COMMON_CLK
> +       select DMA_NONCOHERENT_OPS
>         select GENERIC_ATOMIC64
>         select GENERIC_CPU_DEVICES
>         select GENERIC_CLOCKEVENTS
> diff --git a/arch/nds32/include/asm/Kbuild b/arch/nds32/include/asm/Kbuild
> index 06bdf8167f5a..b3e951f805f8 100644
> --- a/arch/nds32/include/asm/Kbuild
> +++ b/arch/nds32/include/asm/Kbuild
> @@ -13,6 +13,7 @@ generic-y += cputime.h
>  generic-y += device.h
>  generic-y += div64.h
>  generic-y += dma.h
> +generic-y += dma-mapping.h
>  generic-y += emergency-restart.h
>  generic-y += errno.h
>  generic-y += exec.h
> diff --git a/arch/nds32/include/asm/dma-mapping.h b/arch/nds32/include/asm/dma-mapping.h
> deleted file mode 100644
> index 2dd47d245c25..000000000000
> --- a/arch/nds32/include/asm/dma-mapping.h
> +++ /dev/null
> @@ -1,14 +0,0 @@
> -// SPDX-License-Identifier: GPL-2.0
> -// Copyright (C) 2005-2017 Andes Technology Corporation
> -
> -#ifndef ASMNDS32_DMA_MAPPING_H
> -#define ASMNDS32_DMA_MAPPING_H
> -
> -extern struct dma_map_ops nds32_dma_ops;
> -
> -static inline struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
> -{
> -       return &nds32_dma_ops;
> -}
> -
> -#endif
> diff --git a/arch/nds32/kernel/dma.c b/arch/nds32/kernel/dma.c
> index d291800fc621..688f1a03dee6 100644
> --- a/arch/nds32/kernel/dma.c
> +++ b/arch/nds32/kernel/dma.c
> @@ -3,17 +3,14 @@
>
>  #include <linux/types.h>
>  #include <linux/mm.h>
> -#include <linux/export.h>
>  #include <linux/string.h>
> -#include <linux/scatterlist.h>
> -#include <linux/dma-mapping.h>
> +#include <linux/dma-noncoherent.h>
>  #include <linux/io.h>
>  #include <linux/cache.h>
>  #include <linux/highmem.h>
>  #include <linux/slab.h>
>  #include <asm/cacheflush.h>
>  #include <asm/tlbflush.h>
> -#include <asm/dma-mapping.h>
>  #include <asm/proc-fns.h>
>
>  /*
> @@ -22,11 +19,6 @@
>  static pte_t *consistent_pte;
>  static DEFINE_RAW_SPINLOCK(consistent_lock);
>
> -enum master_type {
> -       FOR_CPU = 0,
> -       FOR_DEVICE = 1,
> -};
> -
>  /*
>   * VM region handling support.
>   *
> @@ -124,10 +116,8 @@ static struct arch_vm_region *vm_region_find(struct arch_vm_region *head,
>         return c;
>  }
>
> -/* FIXME: attrs is not used. */
> -static void *nds32_dma_alloc_coherent(struct device *dev, size_t size,
> -                                     dma_addr_t * handle, gfp_t gfp,
> -                                     unsigned long attrs)
> +void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
> +               gfp_t gfp, unsigned long attrs)
>  {
>         struct page *page;
>         struct arch_vm_region *c;
> @@ -232,8 +222,8 @@ static void *nds32_dma_alloc_coherent(struct device *dev, size_t size,
>         return NULL;
>  }
>
> -static void nds32_dma_free(struct device *dev, size_t size, void *cpu_addr,
> -                          dma_addr_t handle, unsigned long attrs)
> +void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
> +               dma_addr_t handle, unsigned long attrs)
>  {
>         struct arch_vm_region *c;
>         unsigned long flags, addr;
> @@ -333,145 +323,43 @@ static int __init consistent_init(void)
>  }
>
>  core_initcall(consistent_init);
> -static void consistent_sync(void *vaddr, size_t size, int direction, int master_type);
> -static dma_addr_t nds32_dma_map_page(struct device *dev, struct page *page,
> -                                    unsigned long offset, size_t size,
> -                                    enum dma_data_direction dir,
> -                                    unsigned long attrs)
> -{
> -       if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> -               consistent_sync((void *)(page_address(page) + offset), size, dir, FOR_DEVICE);
> -       return page_to_phys(page) + offset;
> -}
> -
> -static void nds32_dma_unmap_page(struct device *dev, dma_addr_t handle,
> -                                size_t size, enum dma_data_direction dir,
> -                                unsigned long attrs)
> -{
> -       if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> -               consistent_sync(phys_to_virt(handle), size, dir, FOR_CPU);
> -}
>
> -/*
> - * Make an area consistent for devices.
> - */
> -static void consistent_sync(void *vaddr, size_t size, int direction, int master_type)
> +void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
> +               size_t size, enum dma_data_direction dir)
>  {
> -       unsigned long start = (unsigned long)vaddr;
> -       unsigned long end = start + size;
> -
> -       if (master_type == FOR_CPU) {
> -               switch (direction) {
> -               case DMA_TO_DEVICE:
> -                       break;
> -               case DMA_FROM_DEVICE:
> -               case DMA_BIDIRECTIONAL:
> -                       cpu_dma_inval_range(start, end);
> -                       break;
> -               default:
> -                       BUG();
> -               }
> -       } else {
> -               /* FOR_DEVICE */
> -               switch (direction) {
> -               case DMA_FROM_DEVICE:
> -                       break;
> -               case DMA_TO_DEVICE:
> -               case DMA_BIDIRECTIONAL:
> -                       cpu_dma_wb_range(start, end);
> -                       break;
> -               default:
> -                       BUG();
> -               }
> +       void *addr = kmap_atomic_pfn(PHYS_PFN(paddr));
> +       unsigned long start = (unsigned long)addr;
> +
> +       switch (direction) {
> +       case DMA_FROM_DEVICE:
> +               break;
> +       case DMA_TO_DEVICE:
> +       case DMA_BIDIRECTIONAL:
> +               cpu_dma_wb_range(start, start + size);
> +               break;
> +       default:
> +               BUG();
>         }
> -}
>
> -static int nds32_dma_map_sg(struct device *dev, struct scatterlist *sg,
> -                           int nents, enum dma_data_direction dir,
> -                           unsigned long attrs)
> -{
> -       int i;
> -
> -       for (i = 0; i < nents; i++, sg++) {
> -               void *virt;
> -               unsigned long pfn;
> -               struct page *page = sg_page(sg);
> -
> -               sg->dma_address = sg_phys(sg);
> -               pfn = page_to_pfn(page) + sg->offset / PAGE_SIZE;
> -               page = pfn_to_page(pfn);
> -               if (PageHighMem(page)) {
> -                       virt = kmap_atomic(page);
> -                       consistent_sync(virt, sg->length, dir, FOR_CPU);
> -                       kunmap_atomic(virt);
> -               } else {
> -                       if (sg->offset > PAGE_SIZE)
> -                               panic("sg->offset:%08x > PAGE_SIZE\n",
> -                                     sg->offset);
> -                       virt = page_address(page) + sg->offset;
> -                       consistent_sync(virt, sg->length, dir, FOR_CPU);
> -               }
> -       }
> -       return nents;
> -}
> -
> -static void nds32_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
> -                              int nhwentries, enum dma_data_direction dir,
> -                              unsigned long attrs)
> -{
> +       kunmap_atomic(addr);
>  }
>
> -static void
> -nds32_dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
> -                             size_t size, enum dma_data_direction dir)
> +void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
> +               size_t size, enum dma_data_direction dir)
>  {
> -       consistent_sync((void *)phys_to_virt(handle), size, dir, FOR_CPU);
> -}
> -
> -static void
> -nds32_dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
> -                                size_t size, enum dma_data_direction dir)
> -{
> -       consistent_sync((void *)phys_to_virt(handle), size, dir, FOR_DEVICE);
> -}
> -
> -static void
> -nds32_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
> -                         enum dma_data_direction dir)
> -{
> -       int i;
> -
> -       for (i = 0; i < nents; i++, sg++) {
> -               char *virt =
> -                   page_address((struct page *)sg->page_link) + sg->offset;
> -               consistent_sync(virt, sg->length, dir, FOR_CPU);
> +       void *addr = kmap_atomic_pfn(PHYS_PFN(paddr));
> +       unsigned long start = (unsigned long)addr;
> +
> +       switch (direction) {
> +       case DMA_TO_DEVICE:
> +               break;
> +       case DMA_FROM_DEVICE:
> +       case DMA_BIDIRECTIONAL:
> +               cpu_dma_inval_range(start, end);
> +               break;
> +       default:
> +               BUG();
>         }

  CC      arch/nds32/kernel/dma.o
arch/nds32/kernel/dma.c: In function 'arch_sync_dma_for_device':
arch/nds32/kernel/dma.c:333:10: error: 'direction' undeclared (first
use in this function)
  switch (direction) {
          ^~~~~~~~~
arch/nds32/kernel/dma.c:333:10: note: each undeclared identifier is
reported only once for each function it appears in
arch/nds32/kernel/dma.c: In function 'arch_sync_dma_for_cpu':
arch/nds32/kernel/dma.c:353:10: error: 'direction' undeclared (first
use in this function)
  switch (direction) {
          ^~~~~~~~~
arch/nds32/kernel/dma.c:358:30: error: 'end' undeclared (first use in
this function)
   cpu_dma_inval_range(start, end);
                              ^~~
make[1]: *** [arch/nds32/kernel/dma.o] Error 1
make: *** [arch/nds32/kernel] Error 2

After this building error, the ftmac100.c driver is broken. Not sure
what happened.


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Xref: news.gmane.org gmane.linux.debian.ports.hppa:7734 gmane.linux.ports.parisc:28555
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On 04/22/2018 09:17 PM, Frank Scheiner wrote:
>> Some switches support a half-duplex back pressure form of flow control.
> 
> I'll try that now. According to the documentation my switch can create 
> back-pressure as form of flow control.

Yesterday after I activated flow control on the switch, the 712/80 got 
back after a while and finished the `apt list --upgradable` command with 
output - in between the journald of systemd crashed and restarted. 
Reissuing the same `apt [...]` command worked without problems. On the 
switch's port summary I could now also recognize that the host that acts 
as NFS server now got pause frames submitted by the switch - so the flow 
control is working.

I then tried to install `joe` and when `update-alternatives` started it 
again lost the connection to the NFS server. :-( It didn't recover from 
that - at least not during the time I waited for it - so I powered the 
712/80 down.

I thought maybe switching back to System V init might ease the load a 
little bit for the 712/80, so I upgraded the file system with a c8000 
(incl. newer patch level for the kernel) and removed systemd afterwards 
(also from initramfs).

I then ran some benchmarks without any issues in between.

Today I still have the problems described in [1] when doing `apt install 
[...]` or `apt remove [...]` but now the 712/80 recovered each time so 
far after a while, so it looks like an improvement to me. Look at the 
timings for `apt remove [...]`:

```
root@hp-712:~# time apt remove -y joe
[ 8794.150750] nfs: server 172.16.0.2 not responding, still trying
[...]
[ 8794.962227] nfs: server 172.16.0.2 not responding, still trying
[ 8795.074226] nfs: server 172.16.0.2 OK
[...]
[ 8797.271834] nfs: server 172.16.0.2 OK
[ 8802.242312] nfs: server 172.16.0.2 not responding, still trying
[...]
[ 9235.937478] nfs: server 172.16.0.2 OK
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
   joe
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
After this operation, 2,086 kB disk space will be freed.
(Reading database ... 41128 files and directories currently installed.)
Removing joe (4.6-1) ...
update-alternatives: using /usr/bin/jmacs to provide /usr/bin/editor 
(editor) in auto mode
update-alternatives: using /usr/bin/jpico to provide /usr/bin/editor 
(editor) in auto mode
update-alternatives: using /bin/nano to provide /usr/bin/editor (editor) 
in auto mode
Processing triggers for mime-support (3.60) ...
[ 9357.992385] nfs: server 172.16.0.2 not responding, still trying
[...]
[10055.370493] nfs: server 172.16.0.2 not responding, still trying
[10055.709731] nfs: server 172.16.0.2 OK
[...]
[10057.212469] nfs: server 172.16.0.2 OK

real    22m0.853s
user    1m3.264s
sys     0m43.875s
```

...the `apt install -y joe` done beforehand took about 41 minutes. So 
the 712/80 can recover from the described problems, but package 
management should really be done from a more powerful machine, at least 
when running diskless.

[1]: https://lists.debian.org/debian-hppa/2018/04/msg00007.html

Cheers,
Frank



From - Thu Nov 08 21:41:22 2018
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Subject: Re: [PATCH 01/22] dma-debug: move initialization to common code
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To: Robin Murphy <robin.murphy@arm.com>
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On Fri, Apr 20, 2018 at 11:23:43AM +0100, Robin Murphy wrote:
>> -void dma_debug_init(u32 num_entries)
>> +static int dma_debug_init(void)
>>   {
>> +	u32 num_entries;
>
> Maybe initialise it to PREALLOC_DMA_DEBUG_ENTRIES?

We initialize it down in an if/else clause which seems a little more clear
to me, at the cost of two extra lines of code.  But I suspect I should
just go a little further and merge the global req_entries and the local
num_entries into a single variable with a better name.

>> +core_initcall(dma_debug_init);
>
> I think it's worth noting that for most users this now happens much earlier 
> than before. In general that's probably good (e.g. on arm64 it should 
> prevent false-positives from the Arm SMMU drivers under ACPI), and I can't 
> imagine it's high-risk, but it is a behaviour change.

I'll mention this in the changelog, thanks!


From - Thu Nov 08 21:41:22 2018
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Subject: Re: [PATCH 22/22] parisc: use generic dma_noncoherent_ops
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To: James Bottomley <James.Bottomley@HansenPartnership.com>
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On Sat, Apr 21, 2018 at 10:42:47PM +0100, James Bottomley wrote:
> Well, this is wrong: you just made every 32 bit parisc system
> unnecessarily use non-coherent.  We actually only have a small small
> set of non-coherent systems.  The pxcs and pcxt systems (which are
> about 99% of the user base) can use coherent dma ops.  The problem
> seems to be in your new world you only have one dma_noncoherent_ops
> pointer ... we definitely need two on parisc, so whether
> arch_dma_cache_sync is present or not needs to be dynamic not config
> defined.

The changelog explicitly mentions merging the two noncoherent
implementations, they only differ in the alloc and free callsbacks,
and we now runtime switch between them.  Before the pcxs and pcxt
cases used pcx_dma_ops, and pcxl and pxcl2 used pcxl_dma_ops, now
all four use dma_noncoherent_ops and arch_dma_alloc/arch_dma_free
branch out to different behavior.

Both pcx_dma_ops and pcxl_dma_ops do define the cache_sync
method in the existing code, so that isn't the issue.

I'll take a deeper look at what sort of behavior change might have
been introduced.

> 
> James
---end quoted text---


From - Thu Nov 08 21:41:22 2018
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Subject: dma-debug cleanups, including removing the arch hook
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3830>

Hi all,

this series has a few dma-debug cleanups, most notably removing the need
for architectures to explicitly initialize dma-debug.

From - Thu Nov 08 21:41:23 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 1/3] dma-debug: move initialization to common code
Date: Tue, 24 Apr 2018 16:02:33 +0200
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/23858>

Most mainstream architectures are using 65536 entries, so lets stick to
that.  If someone is really desperate to override it that can still be
done through <asm/dma-mapping.h>, but I'd rather see a really good
rationale for that.

dma_debug_init is now called as a core_initcall, which for many
architectures means much earlier, and provides dma-debug functionality
earlier in the boot process.  This should be safe as it only relies
on the memory allocator already being available.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/arm/mm/dma-mapping-nommu.c |  9 ---------
 arch/arm/mm/dma-mapping.c       |  9 ---------
 arch/arm64/mm/dma-mapping.c     | 10 ----------
 arch/c6x/kernel/dma.c           | 11 -----------
 arch/ia64/kernel/dma-mapping.c  | 10 ----------
 arch/microblaze/kernel/dma.c    | 11 -----------
 arch/mips/mm/dma-default.c      | 10 ----------
 arch/openrisc/kernel/dma.c      | 11 -----------
 arch/powerpc/kernel/dma.c       |  3 ---
 arch/s390/pci/pci_dma.c         |  9 ---------
 arch/sh/mm/consistent.c         |  9 ---------
 arch/sparc/kernel/Makefile      |  2 --
 arch/sparc/kernel/dma.c         | 13 -------------
 arch/x86/kernel/pci-dma.c       |  4 ----
 arch/xtensa/kernel/pci-dma.c    |  9 ---------
 include/linux/dma-debug.h       |  6 ------
 lib/dma-debug.c                 | 21 ++++++++++++++-------
 17 files changed, 14 insertions(+), 143 deletions(-)
 delete mode 100644 arch/sparc/kernel/dma.c

diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index 619f24a42d09..f448a0663b10 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -241,12 +241,3 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 void arch_teardown_dma_ops(struct device *dev)
 {
 }
-
-#define PREALLOC_DMA_DEBUG_ENTRIES	4096
-
-static int __init dma_debug_do_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-core_initcall(dma_debug_do_init);
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 8c398fedbbb6..c26bf83f44ca 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -1165,15 +1165,6 @@ int arm_dma_supported(struct device *dev, u64 mask)
 	return __dma_supported(dev, mask, false);
 }
 
-#define PREALLOC_DMA_DEBUG_ENTRIES	4096
-
-static int __init dma_debug_do_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-core_initcall(dma_debug_do_init);
-
 #ifdef CONFIG_ARM_DMA_USE_IOMMU
 
 static int __dma_info_to_prot(enum dma_data_direction dir, unsigned long attrs)
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index a96ec0181818..db01f2709842 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -508,16 +508,6 @@ static int __init arm64_dma_init(void)
 }
 arch_initcall(arm64_dma_init);
 
-#define PREALLOC_DMA_DEBUG_ENTRIES	4096
-
-static int __init dma_debug_do_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-fs_initcall(dma_debug_do_init);
-
-
 #ifdef CONFIG_IOMMU_DMA
 #include <linux/dma-iommu.h>
 #include <linux/platform_device.h>
diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
index 9fff8be75f58..31e1a9ec3a9c 100644
--- a/arch/c6x/kernel/dma.c
+++ b/arch/c6x/kernel/dma.c
@@ -136,14 +136,3 @@ const struct dma_map_ops c6x_dma_ops = {
 	.sync_sg_for_cpu	= c6x_dma_sync_sg_for_cpu,
 };
 EXPORT_SYMBOL(c6x_dma_ops);
-
-/* Number of entries preallocated for DMA-API debugging */
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
-static int __init dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-
-	return 0;
-}
-fs_initcall(dma_init);
diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
index f2d57e66fd86..7a471d8d67d4 100644
--- a/arch/ia64/kernel/dma-mapping.c
+++ b/arch/ia64/kernel/dma-mapping.c
@@ -9,16 +9,6 @@ int iommu_detected __read_mostly;
 const struct dma_map_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
-static int __init dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-
-	return 0;
-}
-fs_initcall(dma_init);
-
 const struct dma_map_ops *dma_get_ops(struct device *dev)
 {
 	return dma_ops;
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index c91e8cef98dd..3145e7dc8ab1 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -184,14 +184,3 @@ const struct dma_map_ops dma_nommu_ops = {
 	.sync_sg_for_device	= dma_nommu_sync_sg_for_device,
 };
 EXPORT_SYMBOL(dma_nommu_ops);
-
-/* Number of entries preallocated for DMA-API debugging */
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
-static int __init dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-
-	return 0;
-}
-fs_initcall(dma_init);
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index dcafa43613b6..f9fef0028ca2 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -402,13 +402,3 @@ static const struct dma_map_ops mips_default_dma_map_ops = {
 
 const struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
 EXPORT_SYMBOL(mips_dma_map_ops);
-
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
-static int __init mips_dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-
-	return 0;
-}
-fs_initcall(mips_dma_init);
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index a945f00011b4..ec7fd45704d2 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -247,14 +247,3 @@ const struct dma_map_ops or1k_dma_map_ops = {
 	.sync_single_for_device = or1k_sync_single_for_device,
 };
 EXPORT_SYMBOL(or1k_dma_map_ops);
-
-/* Number of entries preallocated for DMA-API debugging */
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
-static int __init dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-
-	return 0;
-}
-fs_initcall(dma_init);
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index da20569de9d4..138157deeadf 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -309,8 +309,6 @@ int dma_set_coherent_mask(struct device *dev, u64 mask)
 }
 EXPORT_SYMBOL(dma_set_coherent_mask);
 
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
 int dma_set_mask(struct device *dev, u64 dma_mask)
 {
 	if (ppc_md.dma_set_mask)
@@ -361,7 +359,6 @@ EXPORT_SYMBOL_GPL(dma_get_required_mask);
 
 static int __init dma_init(void)
 {
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
 #ifdef CONFIG_PCI
 	dma_debug_add_bus(&pci_bus_type);
 #endif
diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index 2d15d84c20ed..5dee7a922589 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -668,15 +668,6 @@ void zpci_dma_exit(void)
 	kmem_cache_destroy(dma_region_table_cache);
 }
 
-#define PREALLOC_DMA_DEBUG_ENTRIES	(1 << 16)
-
-static int __init dma_debug_do_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-fs_initcall(dma_debug_do_init);
-
 const struct dma_map_ops s390_pci_dma_ops = {
 	.alloc		= s390_dma_alloc,
 	.free		= s390_dma_free,
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 8ce98691d822..35ea3099a3b6 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -20,18 +20,9 @@
 #include <asm/cacheflush.h>
 #include <asm/addrspace.h>
 
-#define PREALLOC_DMA_DEBUG_ENTRIES	4096
-
 const struct dma_map_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
-static int __init dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-fs_initcall(dma_init);
-
 void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 				 dma_addr_t *dma_handle, gfp_t gfp,
 				 unsigned long attrs)
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index 76cb57750dda..84cfc5a428d6 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -74,8 +74,6 @@ obj-$(CONFIG_SPARC64)	+= pcr.o
 obj-$(CONFIG_SPARC64)	+= nmi.o
 obj-$(CONFIG_SPARC64_SMP) += cpumap.o
 
-obj-y                     += dma.o
-
 obj-$(CONFIG_PCIC_PCI)    += pcic.o
 obj-$(CONFIG_LEON_PCI)    += leon_pci.o
 obj-$(CONFIG_SPARC_GRPCI2)+= leon_pci_grpci2.o
diff --git a/arch/sparc/kernel/dma.c b/arch/sparc/kernel/dma.c
deleted file mode 100644
index f73e7597c971..000000000000
--- a/arch/sparc/kernel/dma.c
+++ /dev/null
@@ -1,13 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/kernel.h>
-#include <linux/dma-mapping.h>
-#include <linux/dma-debug.h>
-
-#define PREALLOC_DMA_DEBUG_ENTRIES       (1 << 15)
-
-static int __init dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-fs_initcall(dma_init);
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 77625b60a510..bcbaa2e8031e 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -55,9 +55,6 @@ struct device x86_dma_fallback_dev = {
 };
 EXPORT_SYMBOL(x86_dma_fallback_dev);
 
-/* Number of entries preallocated for DMA-API debugging */
-#define PREALLOC_DMA_DEBUG_ENTRIES       65536
-
 void __init pci_iommu_alloc(void)
 {
 	struct iommu_table_entry *p;
@@ -189,7 +186,6 @@ EXPORT_SYMBOL(arch_dma_supported);
 static int __init pci_iommu_init(void)
 {
 	struct iommu_table_entry *p;
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
 
 #ifdef CONFIG_PCI
 	dma_debug_add_bus(&pci_bus_type);
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index 732631ce250f..392b4a80ebc2 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -261,12 +261,3 @@ const struct dma_map_ops xtensa_dma_map_ops = {
 	.mapping_error = xtensa_dma_mapping_error,
 };
 EXPORT_SYMBOL(xtensa_dma_map_ops);
-
-#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-
-static int __init xtensa_dma_init(void)
-{
-	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
-	return 0;
-}
-fs_initcall(xtensa_dma_init);
diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index c7d844f09c3a..a785f2507159 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -30,8 +30,6 @@ struct bus_type;
 
 extern void dma_debug_add_bus(struct bus_type *bus);
 
-extern void dma_debug_init(u32 num_entries);
-
 extern int dma_debug_resize_entries(u32 num_entries);
 
 extern void debug_dma_map_page(struct device *dev, struct page *page,
@@ -100,10 +98,6 @@ static inline void dma_debug_add_bus(struct bus_type *bus)
 {
 }
 
-static inline void dma_debug_init(u32 num_entries)
-{
-}
-
 static inline int dma_debug_resize_entries(u32 num_entries)
 {
 	return 0;
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 7f5cdc1e6b29..712a897174e4 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -41,6 +41,11 @@
 #define HASH_FN_SHIFT   13
 #define HASH_FN_MASK    (HASH_SIZE - 1)
 
+/* allow architectures to override this if absolutely required */
+#ifndef PREALLOC_DMA_DEBUG_ENTRIES
+#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
+#endif
+
 enum {
 	dma_debug_single,
 	dma_debug_page,
@@ -1004,18 +1009,16 @@ void dma_debug_add_bus(struct bus_type *bus)
 	bus_register_notifier(bus, nb);
 }
 
-/*
- * Let the architectures decide how many entries should be preallocated.
- */
-void dma_debug_init(u32 num_entries)
+static int dma_debug_init(void)
 {
+	u32 num_entries;
 	int i;
 
 	/* Do not use dma_debug_initialized here, since we really want to be
 	 * called to set dma_debug_initialized
 	 */
 	if (global_disable)
-		return;
+		return 0;
 
 	for (i = 0; i < HASH_SIZE; ++i) {
 		INIT_LIST_HEAD(&dma_entry_hash[i].list);
@@ -1026,17 +1029,19 @@ void dma_debug_init(u32 num_entries)
 		pr_err("DMA-API: error creating debugfs entries - disabling\n");
 		global_disable = true;
 
-		return;
+		return 0;
 	}
 
 	if (req_entries)
 		num_entries = req_entries;
+	else
+		num_entries = PREALLOC_DMA_DEBUG_ENTRIES;
 
 	if (prealloc_memory(num_entries) != 0) {
 		pr_err("DMA-API: debugging out of memory error - disabled\n");
 		global_disable = true;
 
-		return;
+		return 0;
 	}
 
 	nr_total_entries = num_free_entries;
@@ -1044,7 +1049,9 @@ void dma_debug_init(u32 num_entries)
 	dma_debug_initialized = true;
 
 	pr_info("DMA-API: debugging enabled by kernel config\n");
+	return 0;
 }
+core_initcall(dma_debug_init);
 
 static __init int dma_debug_cmdline(char *str)
 {
-- 
2.17.0


From - Thu Nov 08 21:41:23 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 2/3] dma-debug: simplify counting of preallocated requests
Date: Tue, 24 Apr 2018 16:02:34 +0200
Lines: 66
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2749862>

Just keep a single variable with a descriptive name instead of two
with confusing names.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/dma-debug.c | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)

diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 712a897174e4..075253cb613b 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -132,7 +132,7 @@ static u32 min_free_entries;
 static u32 nr_total_entries;
 
 /* number of preallocated entries requested by kernel cmdline */
-static u32 req_entries;
+static u32 nr_prealloc_entries = PREALLOC_DMA_DEBUG_ENTRIES;
 
 /* debugfs dentry's for the stuff above */
 static struct dentry *dma_debug_dent        __read_mostly;
@@ -1011,7 +1011,6 @@ void dma_debug_add_bus(struct bus_type *bus)
 
 static int dma_debug_init(void)
 {
-	u32 num_entries;
 	int i;
 
 	/* Do not use dma_debug_initialized here, since we really want to be
@@ -1032,12 +1031,7 @@ static int dma_debug_init(void)
 		return 0;
 	}
 
-	if (req_entries)
-		num_entries = req_entries;
-	else
-		num_entries = PREALLOC_DMA_DEBUG_ENTRIES;
-
-	if (prealloc_memory(num_entries) != 0) {
+	if (prealloc_memory(nr_prealloc_entries) != 0) {
 		pr_err("DMA-API: debugging out of memory error - disabled\n");
 		global_disable = true;
 
@@ -1068,16 +1062,10 @@ static __init int dma_debug_cmdline(char *str)
 
 static __init int dma_debug_entries_cmdline(char *str)
 {
-	int res;
-
 	if (!str)
 		return -EINVAL;
-
-	res = get_option(&str, &req_entries);
-
-	if (!res)
-		req_entries = 0;
-
+	if (!get_option(&str, &nr_prealloc_entries))
+		nr_prealloc_entries = PREALLOC_DMA_DEBUG_ENTRIES;
 	return 0;
 }
 
-- 
2.17.0



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Subject: [PATCH 3/3] dma-debug: unexport dma_debug_resize_entries and
	debug_dma_dump_mappings
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Xref: news.gmane.org gmane.linux.kernel.iommu:23860 gmane.linux.kernel.cross-arch:43655 gmane.linux.ports.parisc:28561 gmane.linux.ports.sh.devel:56913 gmane.linux.ports.hexagon:1674 gmane.linux.kernel:2749863 gmane.linux.ports.alpha:4992 gmane.linux.ports.sparc:27761 gmane.linux.kernel.arc:3833 gmane.linux.ports.arm.kernel:645622
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Only used by the AMD GART driver, which must be built in.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 lib/dma-debug.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 075253cb613b..6a1ebaa83623 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -444,7 +444,6 @@ void debug_dma_dump_mappings(struct device *dev)
 		spin_unlock_irqrestore(&bucket->lock, flags);
 	}
 }
-EXPORT_SYMBOL(debug_dma_dump_mappings);
 
 /*
  * For each mapping (initial cacheline in the case of
@@ -753,7 +752,6 @@ int dma_debug_resize_entries(u32 num_entries)
 
 	return ret;
 }
-EXPORT_SYMBOL(dma_debug_resize_entries);
 
 /*
  * DMA-API debugging init code
-- 
2.17.0


From - Thu Nov 08 21:41:23 2018
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Subject: Re: [PATCH 13/22] nds32: use generic dma_noncoherent_ops
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Hi Greentime,

thanks for testing the patch!

It looks like nds32 doesn't have a buildbot yet, so this code didn't
even get syntax checkin, sorry.

Below is the incremental fixes based on this thread.

Can you check if my tree works if you just revert the
"nds32: use generic dma_noncoherent_ops" commit?

diff --git a/arch/nds32/kernel/dma.c b/arch/nds32/kernel/dma.c
index 688f1a03dee6..48018275e7f4 100644
--- a/arch/nds32/kernel/dma.c
+++ b/arch/nds32/kernel/dma.c
@@ -330,7 +330,7 @@ void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
 	void *addr = kmap_atomic_pfn(PHYS_PFN(paddr));
 	unsigned long start = (unsigned long)addr;
 
-	switch (direction) {
+	switch (dir) {
 	case DMA_FROM_DEVICE:
 		break;
 	case DMA_TO_DEVICE:
@@ -350,12 +350,12 @@ void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
 	void *addr = kmap_atomic_pfn(PHYS_PFN(paddr));
 	unsigned long start = (unsigned long)addr;
 
-	switch (direction) {
+	switch (dir) {
 	case DMA_TO_DEVICE:
 		break;
 	case DMA_FROM_DEVICE:
 	case DMA_BIDIRECTIONAL:
-		cpu_dma_inval_range(start, end);
+		cpu_dma_inval_range(start, start + size);
 		break;
 	default:
 		BUG();


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Subject: Re: [PATCH 13/22] nds32: use generic dma_noncoherent_ops
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2018-04-25 3:16 GMT+08:00 Christoph Hellwig <hch@lst.de>:
> Hi Greentime,
>
> thanks for testing the patch!
>
> It looks like nds32 doesn't have a buildbot yet, so this code didn't
> even get syntax checkin, sorry.
>
> Below is the incremental fixes based on this thread.
>
> Can you check if my tree works if you just revert the
> "nds32: use generic dma_noncoherent_ops" commit?
>
> diff --git a/arch/nds32/kernel/dma.c b/arch/nds32/kernel/dma.c
> index 688f1a03dee6..48018275e7f4 100644
> --- a/arch/nds32/kernel/dma.c
> +++ b/arch/nds32/kernel/dma.c
> @@ -330,7 +330,7 @@ void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
>         void *addr = kmap_atomic_pfn(PHYS_PFN(paddr));
>         unsigned long start = (unsigned long)addr;
>
> -       switch (direction) {
> +       switch (dir) {
>         case DMA_FROM_DEVICE:
>                 break;
>         case DMA_TO_DEVICE:
> @@ -350,12 +350,12 @@ void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
>         void *addr = kmap_atomic_pfn(PHYS_PFN(paddr));
>         unsigned long start = (unsigned long)addr;
>
> -       switch (direction) {
> +       switch (dir) {
>         case DMA_TO_DEVICE:
>                 break;
>         case DMA_FROM_DEVICE:
>         case DMA_BIDIRECTIONAL:
> -               cpu_dma_inval_range(start, end);
> +               cpu_dma_inval_range(start, start + size);
>                 break;
>         default:
>                 BUG();

Hi Crhistoph,

The ftmac100 works if I revert this commit.

commit de46b9ba5298aafc47284735a4f21baa8e4ed4b7
Author: Greentime Hu <greentime@andestech.com>
Date:   Wed Apr 25 09:33:51 2018 +0800

    Revert "nds32: use generic dma_noncoherent_ops"

    This reverts commit 0489ce952072e7542456e0d962437062916ce0df.


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Subject: Re: [PATCH 13/22] nds32: use generic dma_noncoherent_ops
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To: Greentime Hu <green.hu@gmail.com>
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On Wed, Apr 25, 2018 at 09:43:43AM +0800, Greentime Hu wrote:
> Hi Crhistoph,
> 
> The ftmac100 works if I revert this commit.

Thanks.  ftmac100 only use dma_map_page, which in the old nds32 code
is just doing a plain page_address and never kmaps.  Can you apply
the patch below on the tree with the origin "nds32: use generic
dma_noncoherent_ops" reverted?  This always just uses page_address,
although that, just like the original code is broken if you actually
have highmem that needs to be mapped:

---
>From 1dc5d1cae4cd7b9ce03d0e2943364ed4cca938d7 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 16 Apr 2018 19:20:30 +0200
Subject: nds32: use generic dma_noncoherent_ops

Switch to the generic noncoherent direct mapping implementation.

This makes sure the cache_sync routines is called in the unmap_sg
case, to match the unmap_single and sync_{single,sg}_to_cpu cases.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/nds32/Kconfig                   |   3 +
 arch/nds32/include/asm/Kbuild        |   1 +
 arch/nds32/include/asm/dma-mapping.h |  14 ---
 arch/nds32/kernel/dma.c              | 182 +++++----------------------
 4 files changed, 37 insertions(+), 163 deletions(-)
 delete mode 100644 arch/nds32/include/asm/dma-mapping.h

diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index 249f38d3388f..67d0ac0a989c 100644
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -5,10 +5,13 @@
 
 config NDS32
         def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_WANT_FRAME_POINTERS if FTRACE
 	select CLKSRC_MMIO
 	select CLONE_BACKWARDS
 	select COMMON_CLK
+	select DMA_NONCOHERENT_OPS
 	select GENERIC_ATOMIC64
 	select GENERIC_CPU_DEVICES
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/nds32/include/asm/Kbuild b/arch/nds32/include/asm/Kbuild
index 06bdf8167f5a..b3e951f805f8 100644
--- a/arch/nds32/include/asm/Kbuild
+++ b/arch/nds32/include/asm/Kbuild
@@ -13,6 +13,7 @@ generic-y += cputime.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += errno.h
 generic-y += exec.h
diff --git a/arch/nds32/include/asm/dma-mapping.h b/arch/nds32/include/asm/dma-mapping.h
deleted file mode 100644
index 2dd47d245c25..000000000000
--- a/arch/nds32/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,14 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef ASMNDS32_DMA_MAPPING_H
-#define ASMNDS32_DMA_MAPPING_H
-
-extern struct dma_map_ops nds32_dma_ops;
-
-static inline struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &nds32_dma_ops;
-}
-
-#endif
diff --git a/arch/nds32/kernel/dma.c b/arch/nds32/kernel/dma.c
index d291800fc621..78311a1e6fd1 100644
--- a/arch/nds32/kernel/dma.c
+++ b/arch/nds32/kernel/dma.c
@@ -3,17 +3,14 @@
 
 #include <linux/types.h>
 #include <linux/mm.h>
-#include <linux/export.h>
 #include <linux/string.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/io.h>
 #include <linux/cache.h>
 #include <linux/highmem.h>
 #include <linux/slab.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
-#include <asm/dma-mapping.h>
 #include <asm/proc-fns.h>
 
 /*
@@ -22,11 +19,6 @@
 static pte_t *consistent_pte;
 static DEFINE_RAW_SPINLOCK(consistent_lock);
 
-enum master_type {
-	FOR_CPU = 0,
-	FOR_DEVICE = 1,
-};
-
 /*
  * VM region handling support.
  *
@@ -124,10 +116,8 @@ static struct arch_vm_region *vm_region_find(struct arch_vm_region *head,
 	return c;
 }
 
-/* FIXME: attrs is not used. */
-static void *nds32_dma_alloc_coherent(struct device *dev, size_t size,
-				      dma_addr_t * handle, gfp_t gfp,
-				      unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	struct page *page;
 	struct arch_vm_region *c;
@@ -232,8 +222,8 @@ static void *nds32_dma_alloc_coherent(struct device *dev, size_t size,
 	return NULL;
 }
 
-static void nds32_dma_free(struct device *dev, size_t size, void *cpu_addr,
-			   dma_addr_t handle, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t handle, unsigned long attrs)
 {
 	struct arch_vm_region *c;
 	unsigned long flags, addr;
@@ -333,145 +323,39 @@ static int __init consistent_init(void)
 }
 
 core_initcall(consistent_init);
-static void consistent_sync(void *vaddr, size_t size, int direction, int master_type);
-static dma_addr_t nds32_dma_map_page(struct device *dev, struct page *page,
-				     unsigned long offset, size_t size,
-				     enum dma_data_direction dir,
-				     unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		consistent_sync((void *)(page_address(page) + offset), size, dir, FOR_DEVICE);
-	return page_to_phys(page) + offset;
-}
 
-static void nds32_dma_unmap_page(struct device *dev, dma_addr_t handle,
-				 size_t size, enum dma_data_direction dir,
-				 unsigned long attrs)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		consistent_sync(phys_to_virt(handle), size, dir, FOR_CPU);
-}
-
-/*
- * Make an area consistent for devices.
- */
-static void consistent_sync(void *vaddr, size_t size, int direction, int master_type)
-{
-	unsigned long start = (unsigned long)vaddr;
-	unsigned long end = start + size;
-
-	if (master_type == FOR_CPU) {
-		switch (direction) {
-		case DMA_TO_DEVICE:
-			break;
-		case DMA_FROM_DEVICE:
-		case DMA_BIDIRECTIONAL:
-			cpu_dma_inval_range(start, end);
-			break;
-		default:
-			BUG();
-		}
-	} else {
-		/* FOR_DEVICE */
-		switch (direction) {
-		case DMA_FROM_DEVICE:
-			break;
-		case DMA_TO_DEVICE:
-		case DMA_BIDIRECTIONAL:
-			cpu_dma_wb_range(start, end);
-			break;
-		default:
-			BUG();
-		}
+	void *addr = phys_to_virt(paddr);
+	unsigned long start = (unsigned long)addr;
+
+	switch (dir) {
+	case DMA_FROM_DEVICE:
+		break;
+	case DMA_TO_DEVICE:
+	case DMA_BIDIRECTIONAL:
+		cpu_dma_wb_range(start, start + size);
+		break;
+	default:
+		BUG();
 	}
 }
 
-static int nds32_dma_map_sg(struct device *dev, struct scatterlist *sg,
-			    int nents, enum dma_data_direction dir,
-			    unsigned long attrs)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	int i;
-
-	for (i = 0; i < nents; i++, sg++) {
-		void *virt;
-		unsigned long pfn;
-		struct page *page = sg_page(sg);
-
-		sg->dma_address = sg_phys(sg);
-		pfn = page_to_pfn(page) + sg->offset / PAGE_SIZE;
-		page = pfn_to_page(pfn);
-		if (PageHighMem(page)) {
-			virt = kmap_atomic(page);
-			consistent_sync(virt, sg->length, dir, FOR_CPU);
-			kunmap_atomic(virt);
-		} else {
-			if (sg->offset > PAGE_SIZE)
-				panic("sg->offset:%08x > PAGE_SIZE\n",
-				      sg->offset);
-			virt = page_address(page) + sg->offset;
-			consistent_sync(virt, sg->length, dir, FOR_CPU);
-		}
+	void *addr = phys_to_virt(paddr);
+	unsigned long start = (unsigned long)addr;
+
+	switch (dir) {
+	case DMA_TO_DEVICE:
+		break;
+	case DMA_FROM_DEVICE:
+	case DMA_BIDIRECTIONAL:
+		cpu_dma_inval_range(start, start + size);
+		break;
+	default:
+		BUG();
 	}
-	return nents;
 }
-
-static void nds32_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-			       int nhwentries, enum dma_data_direction dir,
-			       unsigned long attrs)
-{
-}
-
-static void
-nds32_dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
-			      size_t size, enum dma_data_direction dir)
-{
-	consistent_sync((void *)phys_to_virt(handle), size, dir, FOR_CPU);
-}
-
-static void
-nds32_dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
-				 size_t size, enum dma_data_direction dir)
-{
-	consistent_sync((void *)phys_to_virt(handle), size, dir, FOR_DEVICE);
-}
-
-static void
-nds32_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
-			  enum dma_data_direction dir)
-{
-	int i;
-
-	for (i = 0; i < nents; i++, sg++) {
-		char *virt =
-		    page_address((struct page *)sg->page_link) + sg->offset;
-		consistent_sync(virt, sg->length, dir, FOR_CPU);
-	}
-}
-
-static void
-nds32_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-			     int nents, enum dma_data_direction dir)
-{
-	int i;
-
-	for (i = 0; i < nents; i++, sg++) {
-		char *virt =
-		    page_address((struct page *)sg->page_link) + sg->offset;
-		consistent_sync(virt, sg->length, dir, FOR_DEVICE);
-	}
-}
-
-struct dma_map_ops nds32_dma_ops = {
-	.alloc = nds32_dma_alloc_coherent,
-	.free = nds32_dma_free,
-	.map_page = nds32_dma_map_page,
-	.unmap_page = nds32_dma_unmap_page,
-	.map_sg = nds32_dma_map_sg,
-	.unmap_sg = nds32_dma_unmap_sg,
-	.sync_single_for_device = nds32_dma_sync_single_for_device,
-	.sync_single_for_cpu = nds32_dma_sync_single_for_cpu,
-	.sync_sg_for_cpu = nds32_dma_sync_sg_for_cpu,
-	.sync_sg_for_device = nds32_dma_sync_sg_for_device,
-};
-
-EXPORT_SYMBOL(nds32_dma_ops);
-- 
2.17.0



From - Thu Nov 08 21:41:23 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH 22/22] parisc: use generic dma_noncoherent_ops
Date: Wed, 25 Apr 2018 09:21:05 +0200
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Approved: news@gmane.org
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References: <20180420080313.18796-1-hch@lst.de> <20180420080313.18796-23-hch@lst.de> <e0b4f3be-68b9-c3af-e432-fd20419e2d70@gmx.de>
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Cc: Christoph Hellwig <hch@lst.de>, linux-arch@vger.kernel.org,
        Michal Simek <monstr@monstr.eu>,
        Greentime Hu <green.hu@gmail.com>,
        Vincent Chen <deanbo422@gmail.com>,
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To: Helge Deller <deller@gmx.de>
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On Sat, Apr 21, 2018 at 07:43:46PM +0200, Helge Deller wrote:
> This patch breaks a 32bit kernel on a B160L machine (PA7300LC CPU, "pcxl2").
> After applying this patch series the lasi82956 network driver works unreliable. 
> NIC gets IP, but ping doesn't work.
> See drivers/net/ethernet/i825xx/lasi_82596.c, it uses dma*sync() functions.

Just to confirm:  Without the series it is known to actually work?


From - Thu Nov 08 21:41:23 2018
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From: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
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Subject: Re: [PATCH 06/22] arc: use generic dma_noncoherent_ops
Date: Wed, 25 Apr 2018 11:17:01 +0000
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Hi Christoph,

On Fri, 2018-04-20 at 10:02 +0200, Christoph Hellwig wrote:
> Switch to the generic noncoherent direct mapping implementation.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  arch/arc/Kconfig                   |   4 +
>  arch/arc/include/asm/Kbuild        |   1 +
>  arch/arc/include/asm/dma-mapping.h |  21 -----
>  arch/arc/mm/dma.c                  | 141 +++--------------------------
>  4 files changed, 19 insertions(+), 148 deletions(-)
>  delete mode 100644 arch/arc/include/asm/dma-mapping.h
> 

[snip]

> @@ -135,7 +134,7 @@ static int arc_dma_mmap(struct device *dev, struct vm_area_struct *vma,
>   * CPU accesses page via normal paddr, thus needs to explicitly made
>   * consistent before each use
>   */
> -static void _dma_cache_sync(phys_addr_t paddr, size_t size,
> +static void _dma_cache_sync(struct device *dev, phys_addr_t paddr size_t size,
>  		enum dma_data_direction dir)

Seems like there's a missing comma:
----------------------------------->8------------------------------------
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -134,7 +134,7 @@ int arch_dma_mmap(struct device *dev, struct vm_area_struct *vma,
  * CPU accesses page via normal paddr, thus needs to explicitly made
  * consistent before each use
  */
-static void _dma_cache_sync(struct device *dev, phys_addr_t paddr size_t size,
+static void _dma_cache_sync(struct device *dev, phys_addr_t paddr, size_t size,
                enum dma_data_direction dir)
 {
        switch (dir) {
----------------------------------->8------------------------------------

Which is actually strange as I would expect ARC code to be built by bots.

Anyways with above fix I do see problems with both USB and Ethernet controllers
on ARC HSDK board.
----------------------------------->8------------------------------------
usb 1-1: new high-speed USB device number 2 using ehci-platform
usb 1-1: device descriptor read/64, error -32
usb 1-1: device descriptor read/64, error -32
usb 1-1: new high-speed USB device number 3 using ehci-platform
usb 1-1: device descriptor read/64, error -32
usb 1-1: device descriptor read/64, error -32
usb usb1-port1: attempt power cycle
usb 1-1: new high-speed USB device number 4 using ehci-platform
usb 1-1: device not accepting address 4, error -32
usb 1-1: new high-speed USB device number 5 using ehci-platform
usb 1-1: device not accepting address 5, error -32

...

# wget ftp://ftp.denx.de/pub/u-boot/u-boot-1.0.0.tar.bz2
Connecting to ftp.denx.de (81.169.202.6:21)
wget: can't connect to remote host (81.169.202.6): No route to host
----------------------------------->8------------------------------------

Will all patches from the series reverted (i.e. with
your base-line) all issues go away.

I'll need to spend more time on checking what's actually wrong.

-Alexey

P.S. Note to my ARC colleagues - it's required to disable IO Coherency
to get DMA ops really used, it could be obviously done with:
----------------------------------->8------------------------------------
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -27,7 +27,7 @@
 
 static int l2_line_sz;
 static int ioc_exists;
-int slc_enable = 1, ioc_enable = 1;
+int slc_enable = 1, ioc_enable = 0;
 unsigned long perip_base = ARC_UNCACHED_ADDR_SPACE; /* legacy value for boot */
 unsigned long perip_end = 0xFFFFFFFF; /* legacy value */
----------------------------------->8------------------------------------

From - Thu Nov 08 21:41:23 2018
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From: Greentime Hu <green.hu@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH 13/22] nds32: use generic dma_noncoherent_ops
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To: Christoph Hellwig <hch@lst.de>
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2018-04-25 14:40 GMT+08:00 Christoph Hellwig <hch@lst.de>:
> On Wed, Apr 25, 2018 at 09:43:43AM +0800, Greentime Hu wrote:
>> Hi Crhistoph,
>>
>> The ftmac100 works if I revert this commit.
>
> Thanks.  ftmac100 only use dma_map_page, which in the old nds32 code
> is just doing a plain page_address and never kmaps.  Can you apply
> the patch below on the tree with the origin "nds32: use generic
> dma_noncoherent_ops" reverted?  This always just uses page_address,
> although that, just like the original code is broken if you actually
> have highmem that needs to be mapped:
>

Hi, Christoph,

It still failed.

> ---
> From 1dc5d1cae4cd7b9ce03d0e2943364ed4cca938d7 Mon Sep 17 00:00:00 2001
> From: Christoph Hellwig <hch@lst.de>
> Date: Mon, 16 Apr 2018 19:20:30 +0200
> Subject: nds32: use generic dma_noncoherent_ops
>
> Switch to the generic noncoherent direct mapping implementation.
>
> This makes sure the cache_sync routines is called in the unmap_sg
> case, to match the unmap_single and sync_{single,sg}_to_cpu cases.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  arch/nds32/Kconfig                   |   3 +
>  arch/nds32/include/asm/Kbuild        |   1 +
>  arch/nds32/include/asm/dma-mapping.h |  14 ---
>  arch/nds32/kernel/dma.c              | 182 +++++----------------------
>  4 files changed, 37 insertions(+), 163 deletions(-)
>  delete mode 100644 arch/nds32/include/asm/dma-mapping.h
>
> diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
> index 249f38d3388f..67d0ac0a989c 100644
> --- a/arch/nds32/Kconfig
> +++ b/arch/nds32/Kconfig
> @@ -5,10 +5,13 @@
>
>  config NDS32
>          def_bool y
> +       select ARCH_HAS_SYNC_DMA_FOR_CPU
> +       select ARCH_HAS_SYNC_DMA_FOR_DEVICE
>         select ARCH_WANT_FRAME_POINTERS if FTRACE
>         select CLKSRC_MMIO
>         select CLONE_BACKWARDS
>         select COMMON_CLK
> +       select DMA_NONCOHERENT_OPS
>         select GENERIC_ATOMIC64
>         select GENERIC_CPU_DEVICES
>         select GENERIC_CLOCKEVENTS
> diff --git a/arch/nds32/include/asm/Kbuild b/arch/nds32/include/asm/Kbuild
> index 06bdf8167f5a..b3e951f805f8 100644
> --- a/arch/nds32/include/asm/Kbuild
> +++ b/arch/nds32/include/asm/Kbuild
> @@ -13,6 +13,7 @@ generic-y += cputime.h
>  generic-y += device.h
>  generic-y += div64.h
>  generic-y += dma.h
> +generic-y += dma-mapping.h
>  generic-y += emergency-restart.h
>  generic-y += errno.h
>  generic-y += exec.h
> diff --git a/arch/nds32/include/asm/dma-mapping.h b/arch/nds32/include/asm/dma-mapping.h
> deleted file mode 100644
> index 2dd47d245c25..000000000000
> --- a/arch/nds32/include/asm/dma-mapping.h
> +++ /dev/null
> @@ -1,14 +0,0 @@
> -// SPDX-License-Identifier: GPL-2.0
> -// Copyright (C) 2005-2017 Andes Technology Corporation
> -
> -#ifndef ASMNDS32_DMA_MAPPING_H
> -#define ASMNDS32_DMA_MAPPING_H
> -
> -extern struct dma_map_ops nds32_dma_ops;
> -
> -static inline struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
> -{
> -       return &nds32_dma_ops;
> -}
> -
> -#endif
> diff --git a/arch/nds32/kernel/dma.c b/arch/nds32/kernel/dma.c
> index d291800fc621..78311a1e6fd1 100644
> --- a/arch/nds32/kernel/dma.c
> +++ b/arch/nds32/kernel/dma.c
> @@ -3,17 +3,14 @@
>
>  #include <linux/types.h>
>  #include <linux/mm.h>
> -#include <linux/export.h>
>  #include <linux/string.h>
> -#include <linux/scatterlist.h>
> -#include <linux/dma-mapping.h>
> +#include <linux/dma-noncoherent.h>
>  #include <linux/io.h>
>  #include <linux/cache.h>
>  #include <linux/highmem.h>
>  #include <linux/slab.h>
>  #include <asm/cacheflush.h>
>  #include <asm/tlbflush.h>
> -#include <asm/dma-mapping.h>
>  #include <asm/proc-fns.h>
>
>  /*
> @@ -22,11 +19,6 @@
>  static pte_t *consistent_pte;
>  static DEFINE_RAW_SPINLOCK(consistent_lock);
>
> -enum master_type {
> -       FOR_CPU = 0,
> -       FOR_DEVICE = 1,
> -};
> -
>  /*
>   * VM region handling support.
>   *
> @@ -124,10 +116,8 @@ static struct arch_vm_region *vm_region_find(struct arch_vm_region *head,
>         return c;
>  }
>
> -/* FIXME: attrs is not used. */
> -static void *nds32_dma_alloc_coherent(struct device *dev, size_t size,
> -                                     dma_addr_t * handle, gfp_t gfp,
> -                                     unsigned long attrs)
> +void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
> +               gfp_t gfp, unsigned long attrs)
>  {
>         struct page *page;
>         struct arch_vm_region *c;
> @@ -232,8 +222,8 @@ static void *nds32_dma_alloc_coherent(struct device *dev, size_t size,
>         return NULL;
>  }
>
> -static void nds32_dma_free(struct device *dev, size_t size, void *cpu_addr,
> -                          dma_addr_t handle, unsigned long attrs)
> +void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
> +               dma_addr_t handle, unsigned long attrs)
>  {
>         struct arch_vm_region *c;
>         unsigned long flags, addr;
> @@ -333,145 +323,39 @@ static int __init consistent_init(void)
>  }
>
>  core_initcall(consistent_init);
> -static void consistent_sync(void *vaddr, size_t size, int direction, int master_type);
> -static dma_addr_t nds32_dma_map_page(struct device *dev, struct page *page,
> -                                    unsigned long offset, size_t size,
> -                                    enum dma_data_direction dir,
> -                                    unsigned long attrs)
> -{
> -       if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> -               consistent_sync((void *)(page_address(page) + offset), size, dir, FOR_DEVICE);
> -       return page_to_phys(page) + offset;
> -}
>
> -static void nds32_dma_unmap_page(struct device *dev, dma_addr_t handle,
> -                                size_t size, enum dma_data_direction dir,
> -                                unsigned long attrs)
> +void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
> +               size_t size, enum dma_data_direction dir)
>  {
> -       if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> -               consistent_sync(phys_to_virt(handle), size, dir, FOR_CPU);
> -}
> -
> -/*
> - * Make an area consistent for devices.
> - */
> -static void consistent_sync(void *vaddr, size_t size, int direction, int master_type)
> -{
> -       unsigned long start = (unsigned long)vaddr;
> -       unsigned long end = start + size;
> -
> -       if (master_type == FOR_CPU) {
> -               switch (direction) {
> -               case DMA_TO_DEVICE:
> -                       break;
> -               case DMA_FROM_DEVICE:
> -               case DMA_BIDIRECTIONAL:
> -                       cpu_dma_inval_range(start, end);
> -                       break;
> -               default:
> -                       BUG();
> -               }
> -       } else {
> -               /* FOR_DEVICE */
> -               switch (direction) {
> -               case DMA_FROM_DEVICE:
> -                       break;
> -               case DMA_TO_DEVICE:
> -               case DMA_BIDIRECTIONAL:
> -                       cpu_dma_wb_range(start, end);
> -                       break;
> -               default:
> -                       BUG();
> -               }
> +       void *addr = phys_to_virt(paddr);
> +       unsigned long start = (unsigned long)addr;
> +
> +       switch (dir) {
> +       case DMA_FROM_DEVICE:
> +               break;
> +       case DMA_TO_DEVICE:
> +       case DMA_BIDIRECTIONAL:
> +               cpu_dma_wb_range(start, start + size);
> +               break;
> +       default:
> +               BUG();
>         }
>  }
>
> -static int nds32_dma_map_sg(struct device *dev, struct scatterlist *sg,
> -                           int nents, enum dma_data_direction dir,
> -                           unsigned long attrs)
> +void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
> +               size_t size, enum dma_data_direction dir)
>  {
> -       int i;
> -
> -       for (i = 0; i < nents; i++, sg++) {
> -               void *virt;
> -               unsigned long pfn;
> -               struct page *page = sg_page(sg);
> -
> -               sg->dma_address = sg_phys(sg);
> -               pfn = page_to_pfn(page) + sg->offset / PAGE_SIZE;
> -               page = pfn_to_page(pfn);
> -               if (PageHighMem(page)) {
> -                       virt = kmap_atomic(page);
> -                       consistent_sync(virt, sg->length, dir, FOR_CPU);
> -                       kunmap_atomic(virt);
> -               } else {
> -                       if (sg->offset > PAGE_SIZE)
> -                               panic("sg->offset:%08x > PAGE_SIZE\n",
> -                                     sg->offset);
> -                       virt = page_address(page) + sg->offset;
> -                       consistent_sync(virt, sg->length, dir, FOR_CPU);
> -               }
> +       void *addr = phys_to_virt(paddr);
> +       unsigned long start = (unsigned long)addr;
> +
> +       switch (dir) {
> +       case DMA_TO_DEVICE:
> +               break;
> +       case DMA_FROM_DEVICE:
> +       case DMA_BIDIRECTIONAL:
> +               cpu_dma_inval_range(start, start + size);
> +               break;
> +       default:
> +               BUG();
>         }
> -       return nents;
>  }
> -
> -static void nds32_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
> -                              int nhwentries, enum dma_data_direction dir,
> -                              unsigned long attrs)
> -{
> -}
> -
> -static void
> -nds32_dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
> -                             size_t size, enum dma_data_direction dir)
> -{
> -       consistent_sync((void *)phys_to_virt(handle), size, dir, FOR_CPU);
> -}
> -
> -static void
> -nds32_dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
> -                                size_t size, enum dma_data_direction dir)
> -{
> -       consistent_sync((void *)phys_to_virt(handle), size, dir, FOR_DEVICE);
> -}
> -
> -static void
> -nds32_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
> -                         enum dma_data_direction dir)
> -{
> -       int i;
> -
> -       for (i = 0; i < nents; i++, sg++) {
> -               char *virt =
> -                   page_address((struct page *)sg->page_link) + sg->offset;
> -               consistent_sync(virt, sg->length, dir, FOR_CPU);
> -       }
> -}
> -
> -static void
> -nds32_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
> -                            int nents, enum dma_data_direction dir)
> -{
> -       int i;
> -
> -       for (i = 0; i < nents; i++, sg++) {
> -               char *virt =
> -                   page_address((struct page *)sg->page_link) + sg->offset;
> -               consistent_sync(virt, sg->length, dir, FOR_DEVICE);
> -       }
> -}
> -
> -struct dma_map_ops nds32_dma_ops = {
> -       .alloc = nds32_dma_alloc_coherent,
> -       .free = nds32_dma_free,
> -       .map_page = nds32_dma_map_page,
> -       .unmap_page = nds32_dma_unmap_page,
> -       .map_sg = nds32_dma_map_sg,
> -       .unmap_sg = nds32_dma_unmap_sg,
> -       .sync_single_for_device = nds32_dma_sync_single_for_device,
> -       .sync_single_for_cpu = nds32_dma_sync_single_for_cpu,
> -       .sync_sg_for_cpu = nds32_dma_sync_sg_for_cpu,
> -       .sync_sg_for_device = nds32_dma_sync_sg_for_device,
> -};
> -
> -EXPORT_SYMBOL(nds32_dma_ops);
> --
> 2.17.0
>


From - Thu Nov 08 21:41:23 2018
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Cc: linux-arch@vger.kernel.org, Michal Simek <monstr@monstr.eu>,
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To: Christoph Hellwig <hch@lst.de>
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On 25.04.2018 09:21, Christoph Hellwig wrote:
> On Sat, Apr 21, 2018 at 07:43:46PM +0200, Helge Deller wrote:
>> This patch breaks a 32bit kernel on a B160L machine (PA7300LC CPU, "pcxl2").
>> After applying this patch series the lasi82956 network driver works unreliable. 
>> NIC gets IP, but ping doesn't work.
>> See drivers/net/ethernet/i825xx/lasi_82596.c, it uses dma*sync() functions.
> 
> Just to confirm:  Without the series it is known to actually work?

Yes.
I reverted this series from my tree, rebuilt, and then the issue was gone.
I won't be able to test again earlier than next week.

Helge

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Subject: Re: [PATCH 13/22] nds32: use generic dma_noncoherent_ops
Date: Thu, 26 Apr 2018 08:42:39 +0200
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To: Greentime Hu <green.hu@gmail.com>
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Can you try this patch ontop of either the new or original one?

---
diff --git a/lib/dma-noncoherent.c b/lib/dma-noncoherent.c
index f4b8532c20ac..a2c192b3508d 100644
--- a/lib/dma-noncoherent.c
+++ b/lib/dma-noncoherent.c
@@ -48,7 +48,7 @@ static int dma_noncoherent_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
-#ifdef CONFIG_DMA_NONCOHERENT_SYNC_FOR_CPU
+#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
 static void dma_noncoherent_sync_single_for_cpu(struct device *dev,
 		dma_addr_t addr, size_t size, enum dma_data_direction dir)
 {
@@ -88,7 +88,7 @@ const struct dma_map_ops dma_noncoherent_ops = {
 	.sync_sg_for_device	= dma_noncoherent_sync_sg_for_device,
 	.map_page		= dma_noncoherent_map_page,
 	.map_sg			= dma_noncoherent_map_sg,
-#ifdef CONFIG_DMA_NONCOHERENT_SYNC_FOR_CPU
+#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
 	.sync_single_for_cpu	= dma_noncoherent_sync_single_for_cpu,
 	.sync_sg_for_cpu	= dma_noncoherent_sync_sg_for_cpu,
 	.unmap_page		= dma_noncoherent_unmap_page,


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Subject: Re: [PATCH 06/22] arc: use generic dma_noncoherent_ops
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On Wed, Apr 25, 2018 at 11:17:01AM +0000, Alexey Brodkin wrote:
> Which is actually strange as I would expect ARC code to be built by bots.

I don't think I got any notification.  Thank for the fixes!

I think I found the bug, based on the fact that so far all tests for
architectures that also need a cache op for device to cpu transitions
failed.  I did a stupid typo when changing kconfig symbols, so please
try the patch below.

>  
>  static int l2_line_sz;
>  static int ioc_exists;
> -int slc_enable = 1, ioc_enable = 1;
> +int slc_enable = 1, ioc_enable = 0;

Hmm.  It seems if ioc_enable is 0 we should simply be using
dma_direct_ops on arc, but that is a different discussion.

---
diff --git a/lib/dma-noncoherent.c b/lib/dma-noncoherent.c
index f4b8532c20ac..a2c192b3508d 100644
--- a/lib/dma-noncoherent.c
+++ b/lib/dma-noncoherent.c
@@ -48,7 +48,7 @@ static int dma_noncoherent_map_sg(struct device *dev, struct scatterlist *sgl,
 	return nents;
 }
 
-#ifdef CONFIG_DMA_NONCOHERENT_SYNC_FOR_CPU
+#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
 static void dma_noncoherent_sync_single_for_cpu(struct device *dev,
 		dma_addr_t addr, size_t size, enum dma_data_direction dir)
 {
@@ -88,7 +88,7 @@ const struct dma_map_ops dma_noncoherent_ops = {
 	.sync_sg_for_device	= dma_noncoherent_sync_sg_for_device,
 	.map_page		= dma_noncoherent_map_page,
 	.map_sg			= dma_noncoherent_map_sg,
-#ifdef CONFIG_DMA_NONCOHERENT_SYNC_FOR_CPU
+#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
 	.sync_single_for_cpu	= dma_noncoherent_sync_single_for_cpu,
 	.sync_sg_for_cpu	= dma_noncoherent_sync_sg_for_cpu,
 	.unmap_page		= dma_noncoherent_unmap_page,


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Subject: Re: [PATCH 13/22] nds32: use generic dma_noncoherent_ops
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2018-04-26 14:42 GMT+08:00 Christoph Hellwig <hch@lst.de>:
> Can you try this patch ontop of either the new or original one?
>
> ---
> diff --git a/lib/dma-noncoherent.c b/lib/dma-noncoherent.c
> index f4b8532c20ac..a2c192b3508d 100644
> --- a/lib/dma-noncoherent.c
> +++ b/lib/dma-noncoherent.c
> @@ -48,7 +48,7 @@ static int dma_noncoherent_map_sg(struct device *dev, struct scatterlist *sgl,
>         return nents;
>  }
>
> -#ifdef CONFIG_DMA_NONCOHERENT_SYNC_FOR_CPU
> +#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
>  static void dma_noncoherent_sync_single_for_cpu(struct device *dev,
>                 dma_addr_t addr, size_t size, enum dma_data_direction dir)
>  {
> @@ -88,7 +88,7 @@ const struct dma_map_ops dma_noncoherent_ops = {
>         .sync_sg_for_device     = dma_noncoherent_sync_sg_for_device,
>         .map_page               = dma_noncoherent_map_page,
>         .map_sg                 = dma_noncoherent_map_sg,
> -#ifdef CONFIG_DMA_NONCOHERENT_SYNC_FOR_CPU
> +#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
>         .sync_single_for_cpu    = dma_noncoherent_sync_single_for_cpu,
>         .sync_sg_for_cpu        = dma_noncoherent_sync_sg_for_cpu,
>         .unmap_page             = dma_noncoherent_unmap_page,

It works!!!


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Subject: Re: [PATCH 13/22] nds32: use generic dma_noncoherent_ops
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On Thu, Apr 26, 2018 at 04:06:34PM +0800, Greentime Hu wrote:
> It works!!!

Thanks!

Can you retest the updated tree here with all the fixes and give me
your Tested-by: for the generic and nds32 patches?

git://git.infradead.org/users/hch/misc.git generic-dma-noncoherent


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Subject: Re: [PATCH 06/22] arc: use generic dma_noncoherent_ops
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On Thu, Apr 26, 2018 at 08:45:00AM +0200, hch@lst.de wrote:
> On Wed, Apr 25, 2018 at 11:17:01AM +0000, Alexey Brodkin wrote:
> > Which is actually strange as I would expect ARC code to be built by bots.
> 
> I don't think I got any notification.  Thank for the fixes!
> 
> I think I found the bug, based on the fact that so far all tests for
> architectures that also need a cache op for device to cpu transitions
> failed.  I did a stupid typo when changing kconfig symbols, so please
> try the patch below.

Confirmed to work for nds32, so here is a git tree with the core, arc
and nds32 fixes folded in, feel free to test that one:

git://git.infradead.org/users/hch/misc.git generic-dma-noncoherent


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Subject: Re: [PATCH 13/22] nds32: use generic dma_noncoherent_ops
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2018-04-26 16:24 GMT+08:00 Christoph Hellwig <hch@lst.de>:
> On Thu, Apr 26, 2018 at 04:06:34PM +0800, Greentime Hu wrote:
>> It works!!!
>
> Thanks!
>
> Can you retest the updated tree here with all the fixes and give me
> your Tested-by: for the generic and nds32 patches?
>
> git://git.infradead.org/users/hch/misc.git generic-dma-noncoherent

Sorry Christoph. I found the previous mail I said it works was wrong
because I used a wrong vmlinux.
It still failed. >,<


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Subject: [PATCH 4/3] dma-debug: remove CONFIG_HAVE_DMA_API_DEBUG
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There is no arch specific code required for dma-debug, so there is no
need to opt into the support either.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 .../io/dma-api-debug/arch-support.txt         | 31 -------------------
 arch/Kconfig                                  |  3 --
 arch/arm/Kconfig                              |  1 -
 arch/arm64/Kconfig                            |  1 -
 arch/c6x/Kconfig                              |  1 -
 arch/ia64/Kconfig                             |  1 -
 arch/microblaze/Kconfig                       |  1 -
 arch/mips/Kconfig                             |  1 -
 arch/powerpc/Kconfig                          |  1 -
 arch/riscv/Kconfig                            |  1 -
 arch/s390/Kconfig                             |  1 -
 arch/sh/Kconfig                               |  1 -
 arch/sparc/Kconfig                            |  1 -
 arch/x86/Kconfig                              |  1 -
 arch/xtensa/Kconfig                           |  1 -
 lib/Kconfig.debug                             |  1 -
 16 files changed, 48 deletions(-)
 delete mode 100644 Documentation/features/io/dma-api-debug/arch-support.txt

diff --git a/Documentation/features/io/dma-api-debug/arch-support.txt b/Documentation/features/io/dma-api-debug/arch-support.txt
deleted file mode 100644
index e438ed675623..000000000000
--- a/Documentation/features/io/dma-api-debug/arch-support.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-#
-# Feature name:          dma-api-debug
-#         Kconfig:       HAVE_DMA_API_DEBUG
-#         description:   arch supports DMA debug facilities
-#
-    -----------------------
-    |         arch |status|
-    -----------------------
-    |       alpha: | TODO |
-    |         arc: | TODO |
-    |         arm: |  ok  |
-    |       arm64: |  ok  |
-    |         c6x: |  ok  |
-    |       h8300: | TODO |
-    |     hexagon: | TODO |
-    |        ia64: |  ok  |
-    |        m68k: | TODO |
-    |  microblaze: |  ok  |
-    |        mips: |  ok  |
-    |       nios2: | TODO |
-    |    openrisc: | TODO |
-    |      parisc: | TODO |
-    |     powerpc: |  ok  |
-    |        s390: |  ok  |
-    |          sh: |  ok  |
-    |       sparc: |  ok  |
-    |          um: | TODO |
-    |   unicore32: | TODO |
-    |         x86: |  ok  |
-    |      xtensa: |  ok  |
-    -----------------------
diff --git a/arch/Kconfig b/arch/Kconfig
index 8e0d665c8d53..f07a1a99e5db 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -278,9 +278,6 @@ config HAVE_CLK
 	  The <linux/clk.h> calls support software clock gating and
 	  thus are a key power management tool on many systems.
 
-config HAVE_DMA_API_DEBUG
-	bool
-
 config HAVE_HW_BREAKPOINT
 	bool
 	depends on PERF_EVENTS
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 676977bdfe33..c43f5bb55ac8 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -60,7 +60,6 @@ config ARM
 	select HAVE_CONTEXT_TRACKING
 	select HAVE_C_RECORDMCOUNT
 	select HAVE_DEBUG_KMEMLEAK
-	select HAVE_DMA_API_DEBUG
 	select HAVE_DMA_CONTIGUOUS if MMU
 	select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) && !CPU_ENDIAN_BE32 && MMU
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index db51b6445744..b25ed7834f6c 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -105,7 +105,6 @@ config ARM64
 	select HAVE_CONTEXT_TRACKING
 	select HAVE_DEBUG_BUGVERBOSE
 	select HAVE_DEBUG_KMEMLEAK
-	select HAVE_DMA_API_DEBUG
 	select HAVE_DMA_CONTIGUOUS
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index c6b4dd1418b4..8c088b96e372 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -10,7 +10,6 @@ config C6X
 	select GENERIC_ATOMIC64
 	select GENERIC_IRQ_SHOW
 	select HAVE_ARCH_TRACEHOOK
-	select HAVE_DMA_API_DEBUG
 	select HAVE_MEMBLOCK
 	select SPARSE_IRQ
 	select IRQ_DOMAIN
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 9485b5490eca..2067289fad4a 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -29,7 +29,6 @@ config IA64
 	select HAVE_FUNCTION_TRACER
 	select TTY
 	select HAVE_ARCH_TRACEHOOK
-	select HAVE_DMA_API_DEBUG
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_VIRT_CPU_ACCOUNTING
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 3817a3e2146c..d14782100088 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -19,7 +19,6 @@ config MICROBLAZE
 	select HAVE_ARCH_HASH
 	select HAVE_ARCH_KGDB
 	select HAVE_DEBUG_KMEMLEAK
-	select HAVE_DMA_API_DEBUG
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_GRAPH_TRACER
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 0f619b8c0e9e..2dcdc13cd65d 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -42,7 +42,6 @@ config MIPS
 	select HAVE_C_RECORDMCOUNT
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DEBUG_STACKOVERFLOW
-	select HAVE_DMA_API_DEBUG
 	select HAVE_DMA_CONTIGUOUS
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_EXIT_THREAD
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 1887f8f86a77..268fd46fc3c7 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -181,7 +181,6 @@ config PPC
 	select HAVE_CONTEXT_TRACKING		if PPC64
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DEBUG_STACKOVERFLOW
-	select HAVE_DMA_API_DEBUG
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS	if MPROFILE_KERNEL
 	select HAVE_EBPF_JIT			if PPC64
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 17212ba54ee3..95e2da34aaad 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -23,7 +23,6 @@ config RISCV
 	select GENERIC_ATOMIC64 if !64BIT || !RISCV_ISA_A
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
-	select HAVE_DMA_API_DEBUG
 	select HAVE_DMA_CONTIGUOUS
 	select HAVE_GENERIC_DMA_COHERENT
 	select IRQ_DOMAIN
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index b794a2ab6d15..6a64287ec1da 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -130,7 +130,6 @@ config S390
 	select HAVE_CMPXCHG_LOCAL
 	select HAVE_COPY_THREAD_TLS
 	select HAVE_DEBUG_KMEMLEAK
-	select HAVE_DMA_API_DEBUG
 	select HAVE_DMA_CONTIGUOUS
 	select DMA_DIRECT_OPS
 	select HAVE_DYNAMIC_FTRACE
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 9417f70e008e..7d521926041e 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -13,7 +13,6 @@ config SUPERH
 	select HAVE_OPROFILE
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_ARCH_TRACEHOOK
-	select HAVE_DMA_API_DEBUG
 	select HAVE_PERF_EVENTS
 	select HAVE_DEBUG_BUGVERBOSE
 	select ARCH_HAVE_CUSTOM_GPIO_H
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index c1cfc17eb504..435dbc033afe 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -25,7 +25,6 @@ config SPARC
 	select RTC_CLASS
 	select RTC_DRV_M48T59
 	select RTC_SYSTOHC
-	select HAVE_DMA_API_DEBUG
 	select HAVE_ARCH_JUMP_LABEL if SPARC64
 	select GENERIC_IRQ_SHOW
 	select ARCH_WANT_IPC_PARSE_VERSION
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index aad35c568681..3eeca48a146b 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -135,7 +135,6 @@ config X86
 	select HAVE_C_RECORDMCOUNT
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DEBUG_STACKOVERFLOW
-	select HAVE_DMA_API_DEBUG
 	select HAVE_DMA_CONTIGUOUS
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index c921e8bccdc8..17df332269b2 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -19,7 +19,6 @@ config XTENSA
 	select HAVE_ARCH_KASAN if MMU
 	select HAVE_CC_STACKPROTECTOR
 	select HAVE_DEBUG_KMEMLEAK
-	select HAVE_DMA_API_DEBUG
 	select HAVE_DMA_CONTIGUOUS
 	select HAVE_EXIT_THREAD
 	select HAVE_FUNCTION_TRACER
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 685ed2dd4384..d5175eb7b917 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1634,7 +1634,6 @@ config PROVIDE_OHCI1394_DMA_INIT
 
 config DMA_API_DEBUG
 	bool "Enable debugging of DMA-API usage"
-	depends on HAVE_DMA_API_DEBUG
 	select NEED_DMA_MAP_STATE
 	help
 	  Enable this option to debug the use of the DMA API by device drivers.
-- 
2.17.0


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Hi all,

as a follow-up to [1], now with updated subject:

I finally evaluated the use of different values for "rsize" and "wsize" 
for the NFS mount done by `nfsmount` (from `klibc-utils`). Per default 
or maybe negotiated between NFS server and NFS client (712/80) a value 
of 131072 (Bytes) is used for the 712/80.

I started my evaluation with 8192 (first hardcoded in 
`/usr/share/initramfs-tools/scripts/nfs` and later values were provided 
via the `nfsroot` kernel command line argument (see [2] for details)) 
and guess what, I didn't get any of those:

```
[  233.808818] nfs: server 172.16.0.2 not responding, still trying
[...]
[  235.179253] nfs: server 172.16.0.2 OK
```

...messages afterwards during `apt remove -y joe` and `apt install -y joe`:

```
root@hp-712:~# time apt remove -y joe
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
   joe
0 upgraded, 0 newly installed, 1 to remove and 4 not upgraded.
After this operation, 2,086 kB disk space will be freed.
(Reading database ... 41128 files and directories currently installed.)
Removing joe (4.6-1) ...
update-alternatives: using /usr/bin/jmacs to provide /usr/bin/editor 
(editor) in auto mode
update-alternatives: using /usr/bin/jpico to provide /usr/bin/editor 
(editor) in auto mode
update-alternatives: using /bin/nano to provide /usr/bin/editor (editor) 
in auto mode
Processing triggers for mime-support (3.60) ...

real    3m56.199s
user    1m2.678s
sys     0m43.128s

root@hp-712:~# time apt install -y joe
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
   joe
0 upgraded, 1 newly installed, 0 to remove and 4 not upgraded.
Need to get 516 kB of archives.
After this operation, 2,086 kB of additional disk space will be used.
Get:1 http://ftp.ports.debian.org/debian-ports unstable/main hppa joe 
hppa 4.6-1 [516 kB]
Fetched 516 kB in 4s (144 kB/s)
Selecting previously unselected package joe.
(Reading database ... 40999 files and directories currently installed.)
Preparing to unpack .../archives/joe_4.6-1_hppa.deb ...
Unpacking joe (4.6-1) ...
Processing triggers for mime-support (3.60) ...
Setting up joe (4.6-1) ...
update-alternatives: using /usr/bin/joe to provide /usr/bin/editor 
(editor) in auto mode

real    5m26.107s
user    1m15.187s
sys     1m1.352s

root@hp-712:~# mount | grep rsize
172.16.0.2:/srv/nfs/hp-712/root on / type nfs 
(rw,relatime,vers=3,rsize=8192,wsize=8192,namlen=255,hard,nolock,proto=tcp,port=2049,timeo=7,retrans=10,sec=sys,local_lock=all,addr=172.16.0.2)
```

Also look at the timings, now "only" about 4 and 5.5 minutes 
respectively which is much better than before where it took about 22 and 
41 minutes respectively.

[1]: https://lists.debian.org/debian-hppa/2018/04/msg00007.html

[2]: https://www.kernel.org/doc/Documentation/filesystems/nfs/nfsroot.txt

I then increased the "rsize/wsize" values until the messages mentioned 
above reappeared. This happens with 32768, but 16384 is still OK. I also 
tried 24576 and 28672, but in the end the NFS mount was still done with 
16384 for both "rsize" and "wsize" in this case. Maybe these values are 
not supported by the `nfsmount` tool from `klibc-utils`. The nfs(5) 
manpage on the other hand mentions that "rsize" and "wsize" can be a 
multiple of 1024, but this is of course meant for a different tool.

BTW I didn't recognize a considerable difference in the needed time for 
the `apt install/remove` operations above between 8192 and 16384.

****

I also did some research regarding the 82596 network chip: According to 
[3] the LASI MBA includes an i82596CA and the corresponding data sheet 
from Intel ([4]) mentions that it can be configured for full-duplex 
operation (see page 3, 38 and 39). But I actually don't know what the 
firmware or the kernel driver configures by default.

[3]: https://man.openbsd.org/ie.4

[4]: https://www.intel.com/assets/pdf/general/82596ca.pdf

Cheers,
Frank



From - Thu Nov 08 21:41:24 2018
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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc fixes for 4.17-rc4
Date: Thu, 3 May 2018 18:54:00 +0200
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Hi Linus,

please pull a few fixes and documentation updates for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.17-4

Fix two section mismatches, convert to read_persistent_clock64(), add further
documentation regarding the HPMC crash handler and make bzImage the default
build target.

Thanks,
Helge

----------------------------------------------------------------
Baolin Wang (1):
      parisc: time: Convert read_persistent_clock() to read_persistent_clock64()

Helge Deller (4):
      parisc: Make bzImage default build target
      parisc: Document rules regarding checksum of HPMC handler
      parisc: drivers.c: Fix section mismatches
      parisc: Fix section mismatches

 arch/parisc/Makefile         |  3 +++
 arch/parisc/kernel/drivers.c |  7 ++++---
 arch/parisc/kernel/pci.c     |  2 +-
 arch/parisc/kernel/time.c    |  2 +-
 arch/parisc/kernel/traps.c   | 11 +++++++++++
 arch/parisc/mm/init.c        |  2 +-
 drivers/parisc/ccio-dma.c    |  2 +-
 7 files changed, 22 insertions(+), 7 deletions(-)


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Archived-At: <http://permalink.gmane.org/gmane.linux.hardware.nvdimm/9619>

This patchset is doing:
1) Replace struct resource's sibling list from singly linked list to
list_head. Clearing out those pointer operation within singly linked
list for better code readability.
2) Based on list_head replacement, add a new function
walk_system_ram_res_rev() which can does reversed iteration on
iomem_resource's siblings.
3) Change kexec_file loading to search system RAM top down for kernel
loadin, using walk_system_ram_res_rev().

Note:
This patchset passed testing on my kvm guest, x86_64 arch with network
enabling. The thing we need pay attetion to is that a root resource's
child member need be initialized specifically with LIST_HEAD_INIT() if
statically defined or INIT_LIST_HEAD() for dynamically definition. Here
Just like we do for iomem_resource/ioport_resource, or the change in
get_pci_domain_busn_res().


Links of the old posting(Boris pointed out that we should use
https://lkml.kernel.org/r/Message-ID, while it can't be opened from
my side, so paste all of them here.):
v3:
https://lkml.kernel.org/r/20180419001848.3041-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
https://lkml.org/lkml/2018/4/18/767

v2:
https://lkml.kernel.org/r/20180408024724.16812-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
https://lkml.org/lkml/2018/4/7/169

v1:
https://lkml.kernel.org/r/20180322033722.9279-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
https://lkml.org/lkml/2018/3/21/952

Changelog:
v3->v4:
  Fix several bugs test robot reported. Rewrite cover letter and patch
  log according to reviewer's comment.

v2->v3:
  Rename resource functions first_child() and sibling() to
  resource_first_chils() and resource_sibling(). Dan suggested this.

  Move resource_first_chils() and resource_sibling() to linux/ioport.h
  and make them as inline function. Rob suggested this. Accordingly add
  linux/list.h including in linux/ioport.h, please help review if this
  bring efficiency degradation or code redundancy.

  The change on struct resource {} bring two pointers of size increase,
  mention this in git log to make it more specifically, Rob suggested
  this.

v1->v2:
  Use list_head instead to link resource siblings. This is suggested by
  Andrew.

  Rewrite walk_system_ram_res_rev() after list_head is taken to link
  resouce siblings.

Baoquan He (3):
  resource: Use list_head to link sibling resource
  resource: add walk_system_ram_res_rev()
  kexec_file: Load kernel at top of system RAM if required

 arch/microblaze/pci/pci-common.c            |  31 ++--
 arch/sparc/kernel/ioport.c                  |   2 +-
 arch/xtensa/include/asm/pci-bridge.h        |   4 +-
 drivers/eisa/eisa-bus.c                     |   2 +
 drivers/gpu/drm/drm_memory.c                |   3 +-
 drivers/gpu/drm/gma500/gtt.c                |   5 +-
 drivers/hv/vmbus_drv.c                      |  52 +++----
 drivers/input/joystick/iforce/iforce-main.c |   4 +-
 drivers/nvdimm/e820.c                       |   2 +-
 drivers/nvdimm/namespace_devs.c             |   6 +-
 drivers/nvdimm/nd.h                         |   5 +-
 drivers/of/address.c                        |   4 +-
 drivers/parisc/lba_pci.c                    |   4 +-
 drivers/pci/host/vmd.c                      |   8 +-
 drivers/pci/probe.c                         |   2 +
 drivers/pci/setup-bus.c                     |   2 +-
 include/linux/ioport.h                      |  20 ++-
 kernel/kexec_file.c                         |   2 +
 kernel/resource.c                           | 221 ++++++++++++++++------------
 19 files changed, 215 insertions(+), 164 deletions(-)

-- 
2.13.6

From - Thu Nov 08 21:41:24 2018
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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH v4 1/3] resource: Use list_head to link sibling resource
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From - Thu Nov 08 21:41:24 2018
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Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec
Subject: [PATCH v4 2/3] resource: add walk_system_ram_res_rev()
Date: Mon,  7 May 2018 14:32:23 +0800
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From - Thu Nov 08 21:41:24 2018
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From: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec
Subject: [PATCH v4 3/3] kexec_file: Load kernel at top of system RAM if
 required
Date: Mon,  7 May 2018 14:32:24 +0800
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Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.hardware.nvdimm:9622 gmane.linux.kernel:2760214 gmane.linux.drivers.devicetree:268907 gmane.linux.kernel.pci:72249 gmane.linux.kernel.input:61120 gmane.linux.ports.parisc:28581 gmane.linux.kernel.kexec:20615
Archived-At: <http://permalink.gmane.org/gmane.linux.hardware.nvdimm/9622>

For kexec_file loading, if kexec_buf.top_down is 'true', the memory which
is used to load kernel/initrd/purgatory is supposed to be allocated from
top to down. This is what we have been doing all along in the old kexec
loading interface and the kexec loading is still default setting in some
distributions. However, the current kexec_file loading interface doesn't
do likt this. The function arch_kexec_walk_mem() it calls ignores checking
kexec_buf.top_down, but calls walk_system_ram_res() directly to go through
all resources of System RAM from bottom to up, to try to find memory region
which can contain the specific kexec buffer, then call locate_mem_hole_callback()
to allocate memory in that found memory region from top to down. This brings
confusion especially when KASLR is widely supported , users have to make clear
why kexec/kdump kernel loading position is different between these two
interfaces in order to exclude unnecessary noises. Hence these two interfaces
need be unified on behaviour.

Here add checking if kexec_buf.top_down is 'true' in arch_kexec_walk_mem(),
if yes, call the newly added walk_system_ram_res_rev() to find memory region
from top to down to load kernel.

Signed-off-by: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Eric Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
Cc: Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Dave Young <dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Cc: Yinghai Lu <yinghai-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
---
 kernel/kexec_file.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 75d8e7cf040e..7a66d9d5a534 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -518,6 +518,8 @@ int __weak arch_kexec_walk_mem(struct kexec_buf *kbuf,
 					   IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY,
 					   crashk_res.start, crashk_res.end,
 					   kbuf, func);
+	else if (kbuf->top_down)
+		return walk_system_ram_res_rev(0, ULONG_MAX, kbuf, func);
 	else
 		return walk_system_ram_res(0, ULONG_MAX, kbuf, func);
 }
-- 
2.13.6

From - Thu Nov 08 21:41:24 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.arm.kernel
Subject: Re: dma-debug cleanups, including removing the arch hook
Date: Mon, 7 May 2018 12:29:15 +0200
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Any comments?  I'd like to move forward with this rather sooner
than later, so any reviews welcome!

On Tue, Apr 24, 2018 at 04:02:32PM +0200, Christoph Hellwig wrote:
> Hi all,
> 
> this series has a few dma-debug cleanups, most notably removing the need
> for architectures to explicitly initialize dma-debug.
> _______________________________________________
> iommu mailing list
> iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
> https://lists.linuxfoundation.org/mailman/listinfo/iommu
---end quoted text---

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To: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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Hi Baoquan,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.17-rc4 next-20180504]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180507-144345
config: powerpc-defconfig (attached as .config)
compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   arch/powerpc/kernel/pci-common.c: In function 'pci_process_bridge_OF_ranges':
>> arch/powerpc/kernel/pci-common.c:764:44: error: incompatible types when assigning to type 'struct list_head' from type 'void *'
       res->parent = res->child = res->sibling = NULL;
                                               ^
   arch/powerpc/kernel/pci-common.c: In function 'reparent_resources':
>> arch/powerpc/kernel/pci-common.c:1100:10: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types]
     for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
             ^
   arch/powerpc/kernel/pci-common.c:1100:50: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types]
     for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
                                                     ^
>> arch/powerpc/kernel/pci-common.c:1113:13: error: incompatible types when assigning to type 'struct list_head' from type 'struct resource *'
     res->child = *firstpp;
                ^
   arch/powerpc/kernel/pci-common.c:1114:15: error: incompatible types when assigning to type 'struct list_head' from type 'struct resource *'
     res->sibling = *pp;
                  ^
>> arch/powerpc/kernel/pci-common.c:1117:9: error: incompatible types when assigning to type 'struct resource *' from type 'struct list_head'
     for (p = res->child; p != NULL; p = p->sibling) {
            ^
   arch/powerpc/kernel/pci-common.c:1117:36: error: incompatible types when assigning to type 'struct resource *' from type 'struct list_head'
     for (p = res->child; p != NULL; p = p->sibling) {
                                       ^
   cc1: all warnings being treated as errors

vim +764 arch/powerpc/kernel/pci-common.c

13dccb9e Benjamin Herrenschmidt 2007-12-11  642  
13dccb9e Benjamin Herrenschmidt 2007-12-11  643  /**
13dccb9e Benjamin Herrenschmidt 2007-12-11  644   * pci_process_bridge_OF_ranges - Parse PCI bridge resources from device tree
13dccb9e Benjamin Herrenschmidt 2007-12-11  645   * @hose: newly allocated pci_controller to be setup
13dccb9e Benjamin Herrenschmidt 2007-12-11  646   * @dev: device node of the host bridge
13dccb9e Benjamin Herrenschmidt 2007-12-11  647   * @primary: set if primary bus (32 bits only, soon to be deprecated)
13dccb9e Benjamin Herrenschmidt 2007-12-11  648   *
13dccb9e Benjamin Herrenschmidt 2007-12-11  649   * This function will parse the "ranges" property of a PCI host bridge device
13dccb9e Benjamin Herrenschmidt 2007-12-11  650   * node and setup the resource mapping of a pci controller based on its
13dccb9e Benjamin Herrenschmidt 2007-12-11  651   * content.
13dccb9e Benjamin Herrenschmidt 2007-12-11  652   *
13dccb9e Benjamin Herrenschmidt 2007-12-11  653   * Life would be boring if it wasn't for a few issues that we have to deal
13dccb9e Benjamin Herrenschmidt 2007-12-11  654   * with here:
13dccb9e Benjamin Herrenschmidt 2007-12-11  655   *
13dccb9e Benjamin Herrenschmidt 2007-12-11  656   *   - We can only cope with one IO space range and up to 3 Memory space
13dccb9e Benjamin Herrenschmidt 2007-12-11  657   *     ranges. However, some machines (thanks Apple !) tend to split their
13dccb9e Benjamin Herrenschmidt 2007-12-11  658   *     space into lots of small contiguous ranges. So we have to coalesce.
13dccb9e Benjamin Herrenschmidt 2007-12-11  659   *
13dccb9e Benjamin Herrenschmidt 2007-12-11  660   *   - Some busses have IO space not starting at 0, which causes trouble with
13dccb9e Benjamin Herrenschmidt 2007-12-11  661   *     the way we do our IO resource renumbering. The code somewhat deals with
13dccb9e Benjamin Herrenschmidt 2007-12-11  662   *     it for 64 bits but I would expect problems on 32 bits.
13dccb9e Benjamin Herrenschmidt 2007-12-11  663   *
13dccb9e Benjamin Herrenschmidt 2007-12-11  664   *   - Some 32 bits platforms such as 4xx can have physical space larger than
13dccb9e Benjamin Herrenschmidt 2007-12-11  665   *     32 bits so we need to use 64 bits values for the parsing
13dccb9e Benjamin Herrenschmidt 2007-12-11  666   */
cad5cef6 Greg Kroah-Hartman     2012-12-21  667  void pci_process_bridge_OF_ranges(struct pci_controller *hose,
cad5cef6 Greg Kroah-Hartman     2012-12-21  668  				  struct device_node *dev, int primary)
13dccb9e Benjamin Herrenschmidt 2007-12-11  669  {
858957ab Kevin Hao              2013-05-16  670  	int memno = 0;
13dccb9e Benjamin Herrenschmidt 2007-12-11  671  	struct resource *res;
654837e8 Andrew Murray          2014-02-25  672  	struct of_pci_range range;
654837e8 Andrew Murray          2014-02-25  673  	struct of_pci_range_parser parser;
13dccb9e Benjamin Herrenschmidt 2007-12-11  674  
b7c670d6 Rob Herring            2017-08-21  675  	printk(KERN_INFO "PCI host bridge %pOF %s ranges:\n",
b7c670d6 Rob Herring            2017-08-21  676  	       dev, primary ? "(primary)" : "");
13dccb9e Benjamin Herrenschmidt 2007-12-11  677  
654837e8 Andrew Murray          2014-02-25  678  	/* Check for ranges property */
654837e8 Andrew Murray          2014-02-25  679  	if (of_pci_range_parser_init(&parser, dev))
13dccb9e Benjamin Herrenschmidt 2007-12-11  680  		return;
13dccb9e Benjamin Herrenschmidt 2007-12-11  681  
13dccb9e Benjamin Herrenschmidt 2007-12-11  682  	/* Parse it */
654837e8 Andrew Murray          2014-02-25  683  	for_each_of_pci_range(&parser, &range) {
e9f82cb7 Benjamin Herrenschmidt 2008-10-14  684  		/* If we failed translation or got a zero-sized region
e9f82cb7 Benjamin Herrenschmidt 2008-10-14  685  		 * (some FW try to feed us with non sensical zero sized regions
e9f82cb7 Benjamin Herrenschmidt 2008-10-14  686  		 * such as power3 which look like some kind of attempt at exposing
e9f82cb7 Benjamin Herrenschmidt 2008-10-14  687  		 * the VGA memory hole)
e9f82cb7 Benjamin Herrenschmidt 2008-10-14  688  		 */
654837e8 Andrew Murray          2014-02-25  689  		if (range.cpu_addr == OF_BAD_ADDR || range.size == 0)
13dccb9e Benjamin Herrenschmidt 2007-12-11  690  			continue;
13dccb9e Benjamin Herrenschmidt 2007-12-11  691  
13dccb9e Benjamin Herrenschmidt 2007-12-11  692  		/* Act based on address space type */
13dccb9e Benjamin Herrenschmidt 2007-12-11  693  		res = NULL;
654837e8 Andrew Murray          2014-02-25  694  		switch (range.flags & IORESOURCE_TYPE_BITS) {
654837e8 Andrew Murray          2014-02-25  695  		case IORESOURCE_IO:
13dccb9e Benjamin Herrenschmidt 2007-12-11  696  			printk(KERN_INFO
13dccb9e Benjamin Herrenschmidt 2007-12-11  697  			       "  IO 0x%016llx..0x%016llx -> 0x%016llx\n",
654837e8 Andrew Murray          2014-02-25  698  			       range.cpu_addr, range.cpu_addr + range.size - 1,
654837e8 Andrew Murray          2014-02-25  699  			       range.pci_addr);
13dccb9e Benjamin Herrenschmidt 2007-12-11  700  
13dccb9e Benjamin Herrenschmidt 2007-12-11  701  			/* We support only one IO range */
13dccb9e Benjamin Herrenschmidt 2007-12-11  702  			if (hose->pci_io_size) {
13dccb9e Benjamin Herrenschmidt 2007-12-11  703  				printk(KERN_INFO
13dccb9e Benjamin Herrenschmidt 2007-12-11  704  				       " \\--> Skipped (too many) !\n");
13dccb9e Benjamin Herrenschmidt 2007-12-11  705  				continue;
13dccb9e Benjamin Herrenschmidt 2007-12-11  706  			}
13dccb9e Benjamin Herrenschmidt 2007-12-11  707  #ifdef CONFIG_PPC32
13dccb9e Benjamin Herrenschmidt 2007-12-11  708  			/* On 32 bits, limit I/O space to 16MB */
654837e8 Andrew Murray          2014-02-25  709  			if (range.size > 0x01000000)
654837e8 Andrew Murray          2014-02-25  710  				range.size = 0x01000000;
13dccb9e Benjamin Herrenschmidt 2007-12-11  711  
13dccb9e Benjamin Herrenschmidt 2007-12-11  712  			/* 32 bits needs to map IOs here */
654837e8 Andrew Murray          2014-02-25  713  			hose->io_base_virt = ioremap(range.cpu_addr,
654837e8 Andrew Murray          2014-02-25  714  						range.size);
13dccb9e Benjamin Herrenschmidt 2007-12-11  715  
13dccb9e Benjamin Herrenschmidt 2007-12-11  716  			/* Expect trouble if pci_addr is not 0 */
13dccb9e Benjamin Herrenschmidt 2007-12-11  717  			if (primary)
13dccb9e Benjamin Herrenschmidt 2007-12-11  718  				isa_io_base =
13dccb9e Benjamin Herrenschmidt 2007-12-11  719  					(unsigned long)hose->io_base_virt;
13dccb9e Benjamin Herrenschmidt 2007-12-11  720  #endif /* CONFIG_PPC32 */
13dccb9e Benjamin Herrenschmidt 2007-12-11  721  			/* pci_io_size and io_base_phys always represent IO
13dccb9e Benjamin Herrenschmidt 2007-12-11  722  			 * space starting at 0 so we factor in pci_addr
13dccb9e Benjamin Herrenschmidt 2007-12-11  723  			 */
654837e8 Andrew Murray          2014-02-25  724  			hose->pci_io_size = range.pci_addr + range.size;
654837e8 Andrew Murray          2014-02-25  725  			hose->io_base_phys = range.cpu_addr - range.pci_addr;
13dccb9e Benjamin Herrenschmidt 2007-12-11  726  
13dccb9e Benjamin Herrenschmidt 2007-12-11  727  			/* Build resource */
13dccb9e Benjamin Herrenschmidt 2007-12-11  728  			res = &hose->io_resource;
654837e8 Andrew Murray          2014-02-25  729  			range.cpu_addr = range.pci_addr;
13dccb9e Benjamin Herrenschmidt 2007-12-11  730  			break;
654837e8 Andrew Murray          2014-02-25  731  		case IORESOURCE_MEM:
13dccb9e Benjamin Herrenschmidt 2007-12-11  732  			printk(KERN_INFO
13dccb9e Benjamin Herrenschmidt 2007-12-11  733  			       " MEM 0x%016llx..0x%016llx -> 0x%016llx %s\n",
654837e8 Andrew Murray          2014-02-25  734  			       range.cpu_addr, range.cpu_addr + range.size - 1,
654837e8 Andrew Murray          2014-02-25  735  			       range.pci_addr,
654837e8 Andrew Murray          2014-02-25  736  			       (range.pci_space & 0x40000000) ?
654837e8 Andrew Murray          2014-02-25  737  			       "Prefetch" : "");
13dccb9e Benjamin Herrenschmidt 2007-12-11  738  
13dccb9e Benjamin Herrenschmidt 2007-12-11  739  			/* We support only 3 memory ranges */
13dccb9e Benjamin Herrenschmidt 2007-12-11  740  			if (memno >= 3) {
13dccb9e Benjamin Herrenschmidt 2007-12-11  741  				printk(KERN_INFO
13dccb9e Benjamin Herrenschmidt 2007-12-11  742  				       " \\--> Skipped (too many) !\n");
13dccb9e Benjamin Herrenschmidt 2007-12-11  743  				continue;
13dccb9e Benjamin Herrenschmidt 2007-12-11  744  			}
13dccb9e Benjamin Herrenschmidt 2007-12-11  745  			/* Handles ISA memory hole space here */
654837e8 Andrew Murray          2014-02-25  746  			if (range.pci_addr == 0) {
13dccb9e Benjamin Herrenschmidt 2007-12-11  747  				if (primary || isa_mem_base == 0)
654837e8 Andrew Murray          2014-02-25  748  					isa_mem_base = range.cpu_addr;
654837e8 Andrew Murray          2014-02-25  749  				hose->isa_mem_phys = range.cpu_addr;
654837e8 Andrew Murray          2014-02-25  750  				hose->isa_mem_size = range.size;
13dccb9e Benjamin Herrenschmidt 2007-12-11  751  			}
13dccb9e Benjamin Herrenschmidt 2007-12-11  752  
13dccb9e Benjamin Herrenschmidt 2007-12-11  753  			/* Build resource */
654837e8 Andrew Murray          2014-02-25  754  			hose->mem_offset[memno] = range.cpu_addr -
654837e8 Andrew Murray          2014-02-25  755  							range.pci_addr;
13dccb9e Benjamin Herrenschmidt 2007-12-11  756  			res = &hose->mem_resources[memno++];
13dccb9e Benjamin Herrenschmidt 2007-12-11  757  			break;
13dccb9e Benjamin Herrenschmidt 2007-12-11  758  		}
13dccb9e Benjamin Herrenschmidt 2007-12-11  759  		if (res != NULL) {
aeba3731 Michael Ellerman       2014-10-16  760  			res->name = dev->full_name;
aeba3731 Michael Ellerman       2014-10-16  761  			res->flags = range.flags;
aeba3731 Michael Ellerman       2014-10-16  762  			res->start = range.cpu_addr;
aeba3731 Michael Ellerman       2014-10-16  763  			res->end = range.cpu_addr + range.size - 1;
aeba3731 Michael Ellerman       2014-10-16 @764  			res->parent = res->child = res->sibling = NULL;
13dccb9e Benjamin Herrenschmidt 2007-12-11  765  		}
13dccb9e Benjamin Herrenschmidt 2007-12-11  766  	}
13dccb9e Benjamin Herrenschmidt 2007-12-11  767  }
fa462f2d Benjamin Herrenschmidt 2007-12-20  768  

:::::: The code at line 764 was first introduced by commit
:::::: aeba3731b150188685225b510886f1370d8814de powerpc/pci: Fix IO space breakage after of_pci_range_to_resource() change

:::::: TO: Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>
:::::: CC: Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Subject: Re: [PATCH v4 1/3] resource: Use list_head to link sibling resource
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To: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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Hi Baoquan,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.17-rc4 next-20180504]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180507-144345
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All errors (new ones prefixed by >>):

   arch/arm/plat-samsung/pm-check.c: In function 's3c_pm_run_res':
>> arch/arm/plat-samsung/pm-check.c:49:18: error: invalid operands to binary != (have 'struct list_head' and 'void *')
      if (ptr->child != NULL)
          ~~~~~~~~~~ ^~
>> arch/arm/plat-samsung/pm-check.c:50:19: error: incompatible type for argument 1 of 's3c_pm_run_res'
       s3c_pm_run_res(ptr->child, fn, arg);
                      ^~~
   arch/arm/plat-samsung/pm-check.c:46:13: note: expected 'struct resource *' but argument is of type 'struct list_head'
    static void s3c_pm_run_res(struct resource *ptr, run_fn_t fn, u32 *arg)
                ^~~~~~~~~~~~~~
>> arch/arm/plat-samsung/pm-check.c:60:7: error: incompatible types when assigning to type 'struct resource *' from type 'struct list_head'
      ptr = ptr->sibling;
          ^

vim +49 arch/arm/plat-samsung/pm-check.c

549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  45  
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  46  static void s3c_pm_run_res(struct resource *ptr, run_fn_t fn, u32 *arg)
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  47  {
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  48  	while (ptr != NULL) {
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12 @49  		if (ptr->child != NULL)
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12 @50  			s3c_pm_run_res(ptr->child, fn, arg);
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  51  
05fee7cf arch/arm/plat-samsung/pm-check.c Toshi Kani 2016-01-26  52  		if ((ptr->flags & IORESOURCE_SYSTEM_RAM)
05fee7cf arch/arm/plat-samsung/pm-check.c Toshi Kani 2016-01-26  53  				== IORESOURCE_SYSTEM_RAM) {
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  54  			S3C_PMDBG("Found system RAM at %08lx..%08lx\n",
840eeeb8 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  55  				  (unsigned long)ptr->start,
840eeeb8 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  56  				  (unsigned long)ptr->end);
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  57  			arg = (fn)(ptr, arg);
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  58  		}
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  59  
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12 @60  		ptr = ptr->sibling;
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  61  	}
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  62  }
549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  63  

:::::: The code at line 49 was first introduced by commit
:::::: 549c7e33aeb9bfe441ecf68639d2227bb90978e7 [ARM] S3C: Split the resume memory check code from pm.c

:::::: TO: Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>
:::::: CC: Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24132>

On 24/04/18 15:02, Christoph Hellwig wrote:
> Most mainstream architectures are using 65536 entries, so lets stick to
> that.  If someone is really desperate to override it that can still be
> done through <asm/dma-mapping.h>, but I'd rather see a really good
> rationale for that.
> 
> dma_debug_init is now called as a core_initcall, which for many
> architectures means much earlier, and provides dma-debug functionality
> earlier in the boot process.  This should be safe as it only relies
> on the memory allocator already being available.

Reviewed-by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>

> Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
> ---
>   arch/arm/mm/dma-mapping-nommu.c |  9 ---------
>   arch/arm/mm/dma-mapping.c       |  9 ---------
>   arch/arm64/mm/dma-mapping.c     | 10 ----------
>   arch/c6x/kernel/dma.c           | 11 -----------
>   arch/ia64/kernel/dma-mapping.c  | 10 ----------
>   arch/microblaze/kernel/dma.c    | 11 -----------
>   arch/mips/mm/dma-default.c      | 10 ----------
>   arch/openrisc/kernel/dma.c      | 11 -----------
>   arch/powerpc/kernel/dma.c       |  3 ---
>   arch/s390/pci/pci_dma.c         |  9 ---------
>   arch/sh/mm/consistent.c         |  9 ---------
>   arch/sparc/kernel/Makefile      |  2 --
>   arch/sparc/kernel/dma.c         | 13 -------------
>   arch/x86/kernel/pci-dma.c       |  4 ----
>   arch/xtensa/kernel/pci-dma.c    |  9 ---------
>   include/linux/dma-debug.h       |  6 ------
>   lib/dma-debug.c                 | 21 ++++++++++++++-------
>   17 files changed, 14 insertions(+), 143 deletions(-)
>   delete mode 100644 arch/sparc/kernel/dma.c
> 
> diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
> index 619f24a42d09..f448a0663b10 100644
> --- a/arch/arm/mm/dma-mapping-nommu.c
> +++ b/arch/arm/mm/dma-mapping-nommu.c
> @@ -241,12 +241,3 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
>   void arch_teardown_dma_ops(struct device *dev)
>   {
>   }
> -
> -#define PREALLOC_DMA_DEBUG_ENTRIES	4096
> -
> -static int __init dma_debug_do_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -core_initcall(dma_debug_do_init);
> diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
> index 8c398fedbbb6..c26bf83f44ca 100644
> --- a/arch/arm/mm/dma-mapping.c
> +++ b/arch/arm/mm/dma-mapping.c
> @@ -1165,15 +1165,6 @@ int arm_dma_supported(struct device *dev, u64 mask)
>   	return __dma_supported(dev, mask, false);
>   }
>   
> -#define PREALLOC_DMA_DEBUG_ENTRIES	4096
> -
> -static int __init dma_debug_do_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -core_initcall(dma_debug_do_init);
> -
>   #ifdef CONFIG_ARM_DMA_USE_IOMMU
>   
>   static int __dma_info_to_prot(enum dma_data_direction dir, unsigned long attrs)
> diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
> index a96ec0181818..db01f2709842 100644
> --- a/arch/arm64/mm/dma-mapping.c
> +++ b/arch/arm64/mm/dma-mapping.c
> @@ -508,16 +508,6 @@ static int __init arm64_dma_init(void)
>   }
>   arch_initcall(arm64_dma_init);
>   
> -#define PREALLOC_DMA_DEBUG_ENTRIES	4096
> -
> -static int __init dma_debug_do_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -fs_initcall(dma_debug_do_init);
> -
> -
>   #ifdef CONFIG_IOMMU_DMA
>   #include <linux/dma-iommu.h>
>   #include <linux/platform_device.h>
> diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
> index 9fff8be75f58..31e1a9ec3a9c 100644
> --- a/arch/c6x/kernel/dma.c
> +++ b/arch/c6x/kernel/dma.c
> @@ -136,14 +136,3 @@ const struct dma_map_ops c6x_dma_ops = {
>   	.sync_sg_for_cpu	= c6x_dma_sync_sg_for_cpu,
>   };
>   EXPORT_SYMBOL(c6x_dma_ops);
> -
> -/* Number of entries preallocated for DMA-API debugging */
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
> -static int __init dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -
> -	return 0;
> -}
> -fs_initcall(dma_init);
> diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
> index f2d57e66fd86..7a471d8d67d4 100644
> --- a/arch/ia64/kernel/dma-mapping.c
> +++ b/arch/ia64/kernel/dma-mapping.c
> @@ -9,16 +9,6 @@ int iommu_detected __read_mostly;
>   const struct dma_map_ops *dma_ops;
>   EXPORT_SYMBOL(dma_ops);
>   
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
> -static int __init dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -
> -	return 0;
> -}
> -fs_initcall(dma_init);
> -
>   const struct dma_map_ops *dma_get_ops(struct device *dev)
>   {
>   	return dma_ops;
> diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
> index c91e8cef98dd..3145e7dc8ab1 100644
> --- a/arch/microblaze/kernel/dma.c
> +++ b/arch/microblaze/kernel/dma.c
> @@ -184,14 +184,3 @@ const struct dma_map_ops dma_nommu_ops = {
>   	.sync_sg_for_device	= dma_nommu_sync_sg_for_device,
>   };
>   EXPORT_SYMBOL(dma_nommu_ops);
> -
> -/* Number of entries preallocated for DMA-API debugging */
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
> -static int __init dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -
> -	return 0;
> -}
> -fs_initcall(dma_init);
> diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
> index dcafa43613b6..f9fef0028ca2 100644
> --- a/arch/mips/mm/dma-default.c
> +++ b/arch/mips/mm/dma-default.c
> @@ -402,13 +402,3 @@ static const struct dma_map_ops mips_default_dma_map_ops = {
>   
>   const struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
>   EXPORT_SYMBOL(mips_dma_map_ops);
> -
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
> -static int __init mips_dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -
> -	return 0;
> -}
> -fs_initcall(mips_dma_init);
> diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
> index a945f00011b4..ec7fd45704d2 100644
> --- a/arch/openrisc/kernel/dma.c
> +++ b/arch/openrisc/kernel/dma.c
> @@ -247,14 +247,3 @@ const struct dma_map_ops or1k_dma_map_ops = {
>   	.sync_single_for_device = or1k_sync_single_for_device,
>   };
>   EXPORT_SYMBOL(or1k_dma_map_ops);
> -
> -/* Number of entries preallocated for DMA-API debugging */
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
> -static int __init dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -
> -	return 0;
> -}
> -fs_initcall(dma_init);
> diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
> index da20569de9d4..138157deeadf 100644
> --- a/arch/powerpc/kernel/dma.c
> +++ b/arch/powerpc/kernel/dma.c
> @@ -309,8 +309,6 @@ int dma_set_coherent_mask(struct device *dev, u64 mask)
>   }
>   EXPORT_SYMBOL(dma_set_coherent_mask);
>   
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
>   int dma_set_mask(struct device *dev, u64 dma_mask)
>   {
>   	if (ppc_md.dma_set_mask)
> @@ -361,7 +359,6 @@ EXPORT_SYMBOL_GPL(dma_get_required_mask);
>   
>   static int __init dma_init(void)
>   {
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
>   #ifdef CONFIG_PCI
>   	dma_debug_add_bus(&pci_bus_type);
>   #endif
> diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
> index 2d15d84c20ed..5dee7a922589 100644
> --- a/arch/s390/pci/pci_dma.c
> +++ b/arch/s390/pci/pci_dma.c
> @@ -668,15 +668,6 @@ void zpci_dma_exit(void)
>   	kmem_cache_destroy(dma_region_table_cache);
>   }
>   
> -#define PREALLOC_DMA_DEBUG_ENTRIES	(1 << 16)
> -
> -static int __init dma_debug_do_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -fs_initcall(dma_debug_do_init);
> -
>   const struct dma_map_ops s390_pci_dma_ops = {
>   	.alloc		= s390_dma_alloc,
>   	.free		= s390_dma_free,
> diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
> index 8ce98691d822..35ea3099a3b6 100644
> --- a/arch/sh/mm/consistent.c
> +++ b/arch/sh/mm/consistent.c
> @@ -20,18 +20,9 @@
>   #include <asm/cacheflush.h>
>   #include <asm/addrspace.h>
>   
> -#define PREALLOC_DMA_DEBUG_ENTRIES	4096
> -
>   const struct dma_map_ops *dma_ops;
>   EXPORT_SYMBOL(dma_ops);
>   
> -static int __init dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -fs_initcall(dma_init);
> -
>   void *dma_generic_alloc_coherent(struct device *dev, size_t size,
>   				 dma_addr_t *dma_handle, gfp_t gfp,
>   				 unsigned long attrs)
> diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
> index 76cb57750dda..84cfc5a428d6 100644
> --- a/arch/sparc/kernel/Makefile
> +++ b/arch/sparc/kernel/Makefile
> @@ -74,8 +74,6 @@ obj-$(CONFIG_SPARC64)	+= pcr.o
>   obj-$(CONFIG_SPARC64)	+= nmi.o
>   obj-$(CONFIG_SPARC64_SMP) += cpumap.o
>   
> -obj-y                     += dma.o
> -
>   obj-$(CONFIG_PCIC_PCI)    += pcic.o
>   obj-$(CONFIG_LEON_PCI)    += leon_pci.o
>   obj-$(CONFIG_SPARC_GRPCI2)+= leon_pci_grpci2.o
> diff --git a/arch/sparc/kernel/dma.c b/arch/sparc/kernel/dma.c
> deleted file mode 100644
> index f73e7597c971..000000000000
> --- a/arch/sparc/kernel/dma.c
> +++ /dev/null
> @@ -1,13 +0,0 @@
> -// SPDX-License-Identifier: GPL-2.0
> -#include <linux/kernel.h>
> -#include <linux/dma-mapping.h>
> -#include <linux/dma-debug.h>
> -
> -#define PREALLOC_DMA_DEBUG_ENTRIES       (1 << 15)
> -
> -static int __init dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -fs_initcall(dma_init);
> diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
> index 77625b60a510..bcbaa2e8031e 100644
> --- a/arch/x86/kernel/pci-dma.c
> +++ b/arch/x86/kernel/pci-dma.c
> @@ -55,9 +55,6 @@ struct device x86_dma_fallback_dev = {
>   };
>   EXPORT_SYMBOL(x86_dma_fallback_dev);
>   
> -/* Number of entries preallocated for DMA-API debugging */
> -#define PREALLOC_DMA_DEBUG_ENTRIES       65536
> -
>   void __init pci_iommu_alloc(void)
>   {
>   	struct iommu_table_entry *p;
> @@ -189,7 +186,6 @@ EXPORT_SYMBOL(arch_dma_supported);
>   static int __init pci_iommu_init(void)
>   {
>   	struct iommu_table_entry *p;
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
>   
>   #ifdef CONFIG_PCI
>   	dma_debug_add_bus(&pci_bus_type);
> diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
> index 732631ce250f..392b4a80ebc2 100644
> --- a/arch/xtensa/kernel/pci-dma.c
> +++ b/arch/xtensa/kernel/pci-dma.c
> @@ -261,12 +261,3 @@ const struct dma_map_ops xtensa_dma_map_ops = {
>   	.mapping_error = xtensa_dma_mapping_error,
>   };
>   EXPORT_SYMBOL(xtensa_dma_map_ops);
> -
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
> -static int __init xtensa_dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -fs_initcall(xtensa_dma_init);
> diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
> index c7d844f09c3a..a785f2507159 100644
> --- a/include/linux/dma-debug.h
> +++ b/include/linux/dma-debug.h
> @@ -30,8 +30,6 @@ struct bus_type;
>   
>   extern void dma_debug_add_bus(struct bus_type *bus);
>   
> -extern void dma_debug_init(u32 num_entries);
> -
>   extern int dma_debug_resize_entries(u32 num_entries);
>   
>   extern void debug_dma_map_page(struct device *dev, struct page *page,
> @@ -100,10 +98,6 @@ static inline void dma_debug_add_bus(struct bus_type *bus)
>   {
>   }
>   
> -static inline void dma_debug_init(u32 num_entries)
> -{
> -}
> -
>   static inline int dma_debug_resize_entries(u32 num_entries)
>   {
>   	return 0;
> diff --git a/lib/dma-debug.c b/lib/dma-debug.c
> index 7f5cdc1e6b29..712a897174e4 100644
> --- a/lib/dma-debug.c
> +++ b/lib/dma-debug.c
> @@ -41,6 +41,11 @@
>   #define HASH_FN_SHIFT   13
>   #define HASH_FN_MASK    (HASH_SIZE - 1)
>   
> +/* allow architectures to override this if absolutely required */
> +#ifndef PREALLOC_DMA_DEBUG_ENTRIES
> +#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> +#endif
> +
>   enum {
>   	dma_debug_single,
>   	dma_debug_page,
> @@ -1004,18 +1009,16 @@ void dma_debug_add_bus(struct bus_type *bus)
>   	bus_register_notifier(bus, nb);
>   }
>   
> -/*
> - * Let the architectures decide how many entries should be preallocated.
> - */
> -void dma_debug_init(u32 num_entries)
> +static int dma_debug_init(void)
>   {
> +	u32 num_entries;
>   	int i;
>   
>   	/* Do not use dma_debug_initialized here, since we really want to be
>   	 * called to set dma_debug_initialized
>   	 */
>   	if (global_disable)
> -		return;
> +		return 0;
>   
>   	for (i = 0; i < HASH_SIZE; ++i) {
>   		INIT_LIST_HEAD(&dma_entry_hash[i].list);
> @@ -1026,17 +1029,19 @@ void dma_debug_init(u32 num_entries)
>   		pr_err("DMA-API: error creating debugfs entries - disabling\n");
>   		global_disable = true;
>   
> -		return;
> +		return 0;
>   	}
>   
>   	if (req_entries)
>   		num_entries = req_entries;
> +	else
> +		num_entries = PREALLOC_DMA_DEBUG_ENTRIES;
>   
>   	if (prealloc_memory(num_entries) != 0) {
>   		pr_err("DMA-API: debugging out of memory error - disabled\n");
>   		global_disable = true;
>   
> -		return;
> +		return 0;
>   	}
>   
>   	nr_total_entries = num_free_entries;
> @@ -1044,7 +1049,9 @@ void dma_debug_init(u32 num_entries)
>   	dma_debug_initialized = true;
>   
>   	pr_info("DMA-API: debugging enabled by kernel config\n");
> +	return 0;
>   }
> +core_initcall(dma_debug_init);
>   
>   static __init int dma_debug_cmdline(char *str)
>   {
> 

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Subject: Re: [PATCH 2/3] dma-debug: simplify counting of preallocated requests
Date: Tue, 8 May 2018 10:50:06 +0100
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24133>

On 24/04/18 15:02, Christoph Hellwig wrote:
> Just keep a single variable with a descriptive name instead of two
> with confusing names.

Reviewed-by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>

> Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
> ---
>   lib/dma-debug.c | 20 ++++----------------
>   1 file changed, 4 insertions(+), 16 deletions(-)
> 
> diff --git a/lib/dma-debug.c b/lib/dma-debug.c
> index 712a897174e4..075253cb613b 100644
> --- a/lib/dma-debug.c
> +++ b/lib/dma-debug.c
> @@ -132,7 +132,7 @@ static u32 min_free_entries;
>   static u32 nr_total_entries;
>   
>   /* number of preallocated entries requested by kernel cmdline */
> -static u32 req_entries;
> +static u32 nr_prealloc_entries = PREALLOC_DMA_DEBUG_ENTRIES;
>   
>   /* debugfs dentry's for the stuff above */
>   static struct dentry *dma_debug_dent        __read_mostly;
> @@ -1011,7 +1011,6 @@ void dma_debug_add_bus(struct bus_type *bus)
>   
>   static int dma_debug_init(void)
>   {
> -	u32 num_entries;
>   	int i;
>   
>   	/* Do not use dma_debug_initialized here, since we really want to be
> @@ -1032,12 +1031,7 @@ static int dma_debug_init(void)
>   		return 0;
>   	}
>   
> -	if (req_entries)
> -		num_entries = req_entries;
> -	else
> -		num_entries = PREALLOC_DMA_DEBUG_ENTRIES;
> -
> -	if (prealloc_memory(num_entries) != 0) {
> +	if (prealloc_memory(nr_prealloc_entries) != 0) {
>   		pr_err("DMA-API: debugging out of memory error - disabled\n");
>   		global_disable = true;
>   
> @@ -1068,16 +1062,10 @@ static __init int dma_debug_cmdline(char *str)
>   
>   static __init int dma_debug_entries_cmdline(char *str)
>   {
> -	int res;
> -
>   	if (!str)
>   		return -EINVAL;
> -
> -	res = get_option(&str, &req_entries);
> -
> -	if (!res)
> -		req_entries = 0;
> -
> +	if (!get_option(&str, &nr_prealloc_entries))
> +		nr_prealloc_entries = PREALLOC_DMA_DEBUG_ENTRIES;
>   	return 0;
>   }
>   
> 

From - Thu Nov 08 21:41:25 2018
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Subject: Re: [PATCH 4/3] dma-debug: remove CONFIG_HAVE_DMA_API_DEBUG
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On 27/04/18 16:53, Christoph Hellwig wrote:
> There is no arch specific code required for dma-debug, so there is no
> need to opt into the support either.

Makes sense, and a purely negative diffstat is always pleasing :)

Reviewed-by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>

> Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
> ---
>   .../io/dma-api-debug/arch-support.txt         | 31 -------------------
>   arch/Kconfig                                  |  3 --
>   arch/arm/Kconfig                              |  1 -
>   arch/arm64/Kconfig                            |  1 -
>   arch/c6x/Kconfig                              |  1 -
>   arch/ia64/Kconfig                             |  1 -
>   arch/microblaze/Kconfig                       |  1 -
>   arch/mips/Kconfig                             |  1 -
>   arch/powerpc/Kconfig                          |  1 -
>   arch/riscv/Kconfig                            |  1 -
>   arch/s390/Kconfig                             |  1 -
>   arch/sh/Kconfig                               |  1 -
>   arch/sparc/Kconfig                            |  1 -
>   arch/x86/Kconfig                              |  1 -
>   arch/xtensa/Kconfig                           |  1 -
>   lib/Kconfig.debug                             |  1 -
>   16 files changed, 48 deletions(-)
>   delete mode 100644 Documentation/features/io/dma-api-debug/arch-support.txt
> 
> diff --git a/Documentation/features/io/dma-api-debug/arch-support.txt b/Documentation/features/io/dma-api-debug/arch-support.txt
> deleted file mode 100644
> index e438ed675623..000000000000
> --- a/Documentation/features/io/dma-api-debug/arch-support.txt
> +++ /dev/null
> @@ -1,31 +0,0 @@
> -#
> -# Feature name:          dma-api-debug
> -#         Kconfig:       HAVE_DMA_API_DEBUG
> -#         description:   arch supports DMA debug facilities
> -#
> -    -----------------------
> -    |         arch |status|
> -    -----------------------
> -    |       alpha: | TODO |
> -    |         arc: | TODO |
> -    |         arm: |  ok  |
> -    |       arm64: |  ok  |
> -    |         c6x: |  ok  |
> -    |       h8300: | TODO |
> -    |     hexagon: | TODO |
> -    |        ia64: |  ok  |
> -    |        m68k: | TODO |
> -    |  microblaze: |  ok  |
> -    |        mips: |  ok  |
> -    |       nios2: | TODO |
> -    |    openrisc: | TODO |
> -    |      parisc: | TODO |
> -    |     powerpc: |  ok  |
> -    |        s390: |  ok  |
> -    |          sh: |  ok  |
> -    |       sparc: |  ok  |
> -    |          um: | TODO |
> -    |   unicore32: | TODO |
> -    |         x86: |  ok  |
> -    |      xtensa: |  ok  |
> -    -----------------------
> diff --git a/arch/Kconfig b/arch/Kconfig
> index 8e0d665c8d53..f07a1a99e5db 100644
> --- a/arch/Kconfig
> +++ b/arch/Kconfig
> @@ -278,9 +278,6 @@ config HAVE_CLK
>   	  The <linux/clk.h> calls support software clock gating and
>   	  thus are a key power management tool on many systems.
>   
> -config HAVE_DMA_API_DEBUG
> -	bool
> -
>   config HAVE_HW_BREAKPOINT
>   	bool
>   	depends on PERF_EVENTS
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 676977bdfe33..c43f5bb55ac8 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -60,7 +60,6 @@ config ARM
>   	select HAVE_CONTEXT_TRACKING
>   	select HAVE_C_RECORDMCOUNT
>   	select HAVE_DEBUG_KMEMLEAK
> -	select HAVE_DMA_API_DEBUG
>   	select HAVE_DMA_CONTIGUOUS if MMU
>   	select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) && !CPU_ENDIAN_BE32 && MMU
>   	select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index db51b6445744..b25ed7834f6c 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -105,7 +105,6 @@ config ARM64
>   	select HAVE_CONTEXT_TRACKING
>   	select HAVE_DEBUG_BUGVERBOSE
>   	select HAVE_DEBUG_KMEMLEAK
> -	select HAVE_DMA_API_DEBUG
>   	select HAVE_DMA_CONTIGUOUS
>   	select HAVE_DYNAMIC_FTRACE
>   	select HAVE_EFFICIENT_UNALIGNED_ACCESS
> diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
> index c6b4dd1418b4..8c088b96e372 100644
> --- a/arch/c6x/Kconfig
> +++ b/arch/c6x/Kconfig
> @@ -10,7 +10,6 @@ config C6X
>   	select GENERIC_ATOMIC64
>   	select GENERIC_IRQ_SHOW
>   	select HAVE_ARCH_TRACEHOOK
> -	select HAVE_DMA_API_DEBUG
>   	select HAVE_MEMBLOCK
>   	select SPARSE_IRQ
>   	select IRQ_DOMAIN
> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
> index 9485b5490eca..2067289fad4a 100644
> --- a/arch/ia64/Kconfig
> +++ b/arch/ia64/Kconfig
> @@ -29,7 +29,6 @@ config IA64
>   	select HAVE_FUNCTION_TRACER
>   	select TTY
>   	select HAVE_ARCH_TRACEHOOK
> -	select HAVE_DMA_API_DEBUG
>   	select HAVE_MEMBLOCK
>   	select HAVE_MEMBLOCK_NODE_MAP
>   	select HAVE_VIRT_CPU_ACCOUNTING
> diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
> index 3817a3e2146c..d14782100088 100644
> --- a/arch/microblaze/Kconfig
> +++ b/arch/microblaze/Kconfig
> @@ -19,7 +19,6 @@ config MICROBLAZE
>   	select HAVE_ARCH_HASH
>   	select HAVE_ARCH_KGDB
>   	select HAVE_DEBUG_KMEMLEAK
> -	select HAVE_DMA_API_DEBUG
>   	select HAVE_DYNAMIC_FTRACE
>   	select HAVE_FTRACE_MCOUNT_RECORD
>   	select HAVE_FUNCTION_GRAPH_TRACER
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index 0f619b8c0e9e..2dcdc13cd65d 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -42,7 +42,6 @@ config MIPS
>   	select HAVE_C_RECORDMCOUNT
>   	select HAVE_DEBUG_KMEMLEAK
>   	select HAVE_DEBUG_STACKOVERFLOW
> -	select HAVE_DMA_API_DEBUG
>   	select HAVE_DMA_CONTIGUOUS
>   	select HAVE_DYNAMIC_FTRACE
>   	select HAVE_EXIT_THREAD
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index 1887f8f86a77..268fd46fc3c7 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -181,7 +181,6 @@ config PPC
>   	select HAVE_CONTEXT_TRACKING		if PPC64
>   	select HAVE_DEBUG_KMEMLEAK
>   	select HAVE_DEBUG_STACKOVERFLOW
> -	select HAVE_DMA_API_DEBUG
>   	select HAVE_DYNAMIC_FTRACE
>   	select HAVE_DYNAMIC_FTRACE_WITH_REGS	if MPROFILE_KERNEL
>   	select HAVE_EBPF_JIT			if PPC64
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index 17212ba54ee3..95e2da34aaad 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -23,7 +23,6 @@ config RISCV
>   	select GENERIC_ATOMIC64 if !64BIT || !RISCV_ISA_A
>   	select HAVE_MEMBLOCK
>   	select HAVE_MEMBLOCK_NODE_MAP
> -	select HAVE_DMA_API_DEBUG
>   	select HAVE_DMA_CONTIGUOUS
>   	select HAVE_GENERIC_DMA_COHERENT
>   	select IRQ_DOMAIN
> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> index b794a2ab6d15..6a64287ec1da 100644
> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -130,7 +130,6 @@ config S390
>   	select HAVE_CMPXCHG_LOCAL
>   	select HAVE_COPY_THREAD_TLS
>   	select HAVE_DEBUG_KMEMLEAK
> -	select HAVE_DMA_API_DEBUG
>   	select HAVE_DMA_CONTIGUOUS
>   	select DMA_DIRECT_OPS
>   	select HAVE_DYNAMIC_FTRACE
> diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
> index 9417f70e008e..7d521926041e 100644
> --- a/arch/sh/Kconfig
> +++ b/arch/sh/Kconfig
> @@ -13,7 +13,6 @@ config SUPERH
>   	select HAVE_OPROFILE
>   	select HAVE_GENERIC_DMA_COHERENT
>   	select HAVE_ARCH_TRACEHOOK
> -	select HAVE_DMA_API_DEBUG
>   	select HAVE_PERF_EVENTS
>   	select HAVE_DEBUG_BUGVERBOSE
>   	select ARCH_HAVE_CUSTOM_GPIO_H
> diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
> index c1cfc17eb504..435dbc033afe 100644
> --- a/arch/sparc/Kconfig
> +++ b/arch/sparc/Kconfig
> @@ -25,7 +25,6 @@ config SPARC
>   	select RTC_CLASS
>   	select RTC_DRV_M48T59
>   	select RTC_SYSTOHC
> -	select HAVE_DMA_API_DEBUG
>   	select HAVE_ARCH_JUMP_LABEL if SPARC64
>   	select GENERIC_IRQ_SHOW
>   	select ARCH_WANT_IPC_PARSE_VERSION
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index aad35c568681..3eeca48a146b 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -135,7 +135,6 @@ config X86
>   	select HAVE_C_RECORDMCOUNT
>   	select HAVE_DEBUG_KMEMLEAK
>   	select HAVE_DEBUG_STACKOVERFLOW
> -	select HAVE_DMA_API_DEBUG
>   	select HAVE_DMA_CONTIGUOUS
>   	select HAVE_DYNAMIC_FTRACE
>   	select HAVE_DYNAMIC_FTRACE_WITH_REGS
> diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
> index c921e8bccdc8..17df332269b2 100644
> --- a/arch/xtensa/Kconfig
> +++ b/arch/xtensa/Kconfig
> @@ -19,7 +19,6 @@ config XTENSA
>   	select HAVE_ARCH_KASAN if MMU
>   	select HAVE_CC_STACKPROTECTOR
>   	select HAVE_DEBUG_KMEMLEAK
> -	select HAVE_DMA_API_DEBUG
>   	select HAVE_DMA_CONTIGUOUS
>   	select HAVE_EXIT_THREAD
>   	select HAVE_FUNCTION_TRACER
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index 685ed2dd4384..d5175eb7b917 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -1634,7 +1634,6 @@ config PROVIDE_OHCI1394_DMA_INIT
>   
>   config DMA_API_DEBUG
>   	bool "Enable debugging of DMA-API usage"
> -	depends on HAVE_DMA_API_DEBUG
>   	select NEED_DMA_MAP_STATE
>   	help
>   	  Enable this option to debug the use of the DMA API by device drivers.
> 

From - Thu Nov 08 21:41:25 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH 3/3] dma-debug: unexport dma_debug_resize_entries and
	debug_dma_dump_mappings
Date: Tue, 8 May 2018 11:05:20 +0100
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To: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
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On 24/04/18 15:02, Christoph Hellwig wrote:
> Only used by the AMD GART driver, which must be built in.

FWIW debug_dma_dump_mappings() is also called by the Intel VT-d driver, 
but the same reasoning still applies. This does rather beg the question 
of whether it's right to have bits of low-level dma-debug internals 
*only* called by a couple of IOMMU drivers, but that can wait for 
another day.

Reviewed-by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>

> Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
> ---
>   lib/dma-debug.c | 2 --
>   1 file changed, 2 deletions(-)
> 
> diff --git a/lib/dma-debug.c b/lib/dma-debug.c
> index 075253cb613b..6a1ebaa83623 100644
> --- a/lib/dma-debug.c
> +++ b/lib/dma-debug.c
> @@ -444,7 +444,6 @@ void debug_dma_dump_mappings(struct device *dev)
>   		spin_unlock_irqrestore(&bucket->lock, flags);
>   	}
>   }
> -EXPORT_SYMBOL(debug_dma_dump_mappings);
>   
>   /*
>    * For each mapping (initial cacheline in the case of
> @@ -753,7 +752,6 @@ int dma_debug_resize_entries(u32 num_entries)
>   
>   	return ret;
>   }
> -EXPORT_SYMBOL(dma_debug_resize_entries);
>   
>   /*
>    * DMA-API debugging init code
> 

From - Thu Nov 08 21:41:25 2018
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Subject: Re: [PATCH 1/3] dma-debug: move initialization to common code
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24137>

Hi Christoph,

On 2018-04-24 16:02, Christoph Hellwig wrote:
> Most mainstream architectures are using 65536 entries, so lets stick to
> that.  If someone is really desperate to override it that can still be
> done through <asm/dma-mapping.h>, but I'd rather see a really good
> rationale for that.
>
> dma_debug_init is now called as a core_initcall, which for many
> architectures means much earlier, and provides dma-debug functionality
> earlier in the boot process.  This should be safe as it only relies
> on the memory allocator already being available.
>
> Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>

Nice! Unification of this is definitely needed and solves the issues
reported some time ago:

https://patchwork.kernel.org/patch/9429637/ (arm)
https://patchwork.kernel.org/patch/9431161/ (arm64, rejected)

Acked-by: Marek Szyprowski <m.szyprowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>

> ---
>   arch/arm/mm/dma-mapping-nommu.c |  9 ---------
>   arch/arm/mm/dma-mapping.c       |  9 ---------
>   arch/arm64/mm/dma-mapping.c     | 10 ----------
>   arch/c6x/kernel/dma.c           | 11 -----------
>   arch/ia64/kernel/dma-mapping.c  | 10 ----------
>   arch/microblaze/kernel/dma.c    | 11 -----------
>   arch/mips/mm/dma-default.c      | 10 ----------
>   arch/openrisc/kernel/dma.c      | 11 -----------
>   arch/powerpc/kernel/dma.c       |  3 ---
>   arch/s390/pci/pci_dma.c         |  9 ---------
>   arch/sh/mm/consistent.c         |  9 ---------
>   arch/sparc/kernel/Makefile      |  2 --
>   arch/sparc/kernel/dma.c         | 13 -------------
>   arch/x86/kernel/pci-dma.c       |  4 ----
>   arch/xtensa/kernel/pci-dma.c    |  9 ---------
>   include/linux/dma-debug.h       |  6 ------
>   lib/dma-debug.c                 | 21 ++++++++++++++-------
>   17 files changed, 14 insertions(+), 143 deletions(-)
>   delete mode 100644 arch/sparc/kernel/dma.c
>
> diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
> index 619f24a42d09..f448a0663b10 100644
> --- a/arch/arm/mm/dma-mapping-nommu.c
> +++ b/arch/arm/mm/dma-mapping-nommu.c
> @@ -241,12 +241,3 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
>   void arch_teardown_dma_ops(struct device *dev)
>   {
>   }
> -
> -#define PREALLOC_DMA_DEBUG_ENTRIES	4096
> -
> -static int __init dma_debug_do_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -core_initcall(dma_debug_do_init);
> diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
> index 8c398fedbbb6..c26bf83f44ca 100644
> --- a/arch/arm/mm/dma-mapping.c
> +++ b/arch/arm/mm/dma-mapping.c
> @@ -1165,15 +1165,6 @@ int arm_dma_supported(struct device *dev, u64 mask)
>   	return __dma_supported(dev, mask, false);
>   }
>   
> -#define PREALLOC_DMA_DEBUG_ENTRIES	4096
> -
> -static int __init dma_debug_do_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -core_initcall(dma_debug_do_init);
> -
>   #ifdef CONFIG_ARM_DMA_USE_IOMMU
>   
>   static int __dma_info_to_prot(enum dma_data_direction dir, unsigned long attrs)
> diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
> index a96ec0181818..db01f2709842 100644
> --- a/arch/arm64/mm/dma-mapping.c
> +++ b/arch/arm64/mm/dma-mapping.c
> @@ -508,16 +508,6 @@ static int __init arm64_dma_init(void)
>   }
>   arch_initcall(arm64_dma_init);
>   
> -#define PREALLOC_DMA_DEBUG_ENTRIES	4096
> -
> -static int __init dma_debug_do_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -fs_initcall(dma_debug_do_init);
> -
> -
>   #ifdef CONFIG_IOMMU_DMA
>   #include <linux/dma-iommu.h>
>   #include <linux/platform_device.h>
> diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
> index 9fff8be75f58..31e1a9ec3a9c 100644
> --- a/arch/c6x/kernel/dma.c
> +++ b/arch/c6x/kernel/dma.c
> @@ -136,14 +136,3 @@ const struct dma_map_ops c6x_dma_ops = {
>   	.sync_sg_for_cpu	= c6x_dma_sync_sg_for_cpu,
>   };
>   EXPORT_SYMBOL(c6x_dma_ops);
> -
> -/* Number of entries preallocated for DMA-API debugging */
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
> -static int __init dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -
> -	return 0;
> -}
> -fs_initcall(dma_init);
> diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
> index f2d57e66fd86..7a471d8d67d4 100644
> --- a/arch/ia64/kernel/dma-mapping.c
> +++ b/arch/ia64/kernel/dma-mapping.c
> @@ -9,16 +9,6 @@ int iommu_detected __read_mostly;
>   const struct dma_map_ops *dma_ops;
>   EXPORT_SYMBOL(dma_ops);
>   
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
> -static int __init dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -
> -	return 0;
> -}
> -fs_initcall(dma_init);
> -
>   const struct dma_map_ops *dma_get_ops(struct device *dev)
>   {
>   	return dma_ops;
> diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
> index c91e8cef98dd..3145e7dc8ab1 100644
> --- a/arch/microblaze/kernel/dma.c
> +++ b/arch/microblaze/kernel/dma.c
> @@ -184,14 +184,3 @@ const struct dma_map_ops dma_nommu_ops = {
>   	.sync_sg_for_device	= dma_nommu_sync_sg_for_device,
>   };
>   EXPORT_SYMBOL(dma_nommu_ops);
> -
> -/* Number of entries preallocated for DMA-API debugging */
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
> -static int __init dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -
> -	return 0;
> -}
> -fs_initcall(dma_init);
> diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
> index dcafa43613b6..f9fef0028ca2 100644
> --- a/arch/mips/mm/dma-default.c
> +++ b/arch/mips/mm/dma-default.c
> @@ -402,13 +402,3 @@ static const struct dma_map_ops mips_default_dma_map_ops = {
>   
>   const struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
>   EXPORT_SYMBOL(mips_dma_map_ops);
> -
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
> -static int __init mips_dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -
> -	return 0;
> -}
> -fs_initcall(mips_dma_init);
> diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
> index a945f00011b4..ec7fd45704d2 100644
> --- a/arch/openrisc/kernel/dma.c
> +++ b/arch/openrisc/kernel/dma.c
> @@ -247,14 +247,3 @@ const struct dma_map_ops or1k_dma_map_ops = {
>   	.sync_single_for_device = or1k_sync_single_for_device,
>   };
>   EXPORT_SYMBOL(or1k_dma_map_ops);
> -
> -/* Number of entries preallocated for DMA-API debugging */
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
> -static int __init dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -
> -	return 0;
> -}
> -fs_initcall(dma_init);
> diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
> index da20569de9d4..138157deeadf 100644
> --- a/arch/powerpc/kernel/dma.c
> +++ b/arch/powerpc/kernel/dma.c
> @@ -309,8 +309,6 @@ int dma_set_coherent_mask(struct device *dev, u64 mask)
>   }
>   EXPORT_SYMBOL(dma_set_coherent_mask);
>   
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
>   int dma_set_mask(struct device *dev, u64 dma_mask)
>   {
>   	if (ppc_md.dma_set_mask)
> @@ -361,7 +359,6 @@ EXPORT_SYMBOL_GPL(dma_get_required_mask);
>   
>   static int __init dma_init(void)
>   {
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
>   #ifdef CONFIG_PCI
>   	dma_debug_add_bus(&pci_bus_type);
>   #endif
> diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
> index 2d15d84c20ed..5dee7a922589 100644
> --- a/arch/s390/pci/pci_dma.c
> +++ b/arch/s390/pci/pci_dma.c
> @@ -668,15 +668,6 @@ void zpci_dma_exit(void)
>   	kmem_cache_destroy(dma_region_table_cache);
>   }
>   
> -#define PREALLOC_DMA_DEBUG_ENTRIES	(1 << 16)
> -
> -static int __init dma_debug_do_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -fs_initcall(dma_debug_do_init);
> -
>   const struct dma_map_ops s390_pci_dma_ops = {
>   	.alloc		= s390_dma_alloc,
>   	.free		= s390_dma_free,
> diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
> index 8ce98691d822..35ea3099a3b6 100644
> --- a/arch/sh/mm/consistent.c
> +++ b/arch/sh/mm/consistent.c
> @@ -20,18 +20,9 @@
>   #include <asm/cacheflush.h>
>   #include <asm/addrspace.h>
>   
> -#define PREALLOC_DMA_DEBUG_ENTRIES	4096
> -
>   const struct dma_map_ops *dma_ops;
>   EXPORT_SYMBOL(dma_ops);
>   
> -static int __init dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -fs_initcall(dma_init);
> -
>   void *dma_generic_alloc_coherent(struct device *dev, size_t size,
>   				 dma_addr_t *dma_handle, gfp_t gfp,
>   				 unsigned long attrs)
> diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
> index 76cb57750dda..84cfc5a428d6 100644
> --- a/arch/sparc/kernel/Makefile
> +++ b/arch/sparc/kernel/Makefile
> @@ -74,8 +74,6 @@ obj-$(CONFIG_SPARC64)	+= pcr.o
>   obj-$(CONFIG_SPARC64)	+= nmi.o
>   obj-$(CONFIG_SPARC64_SMP) += cpumap.o
>   
> -obj-y                     += dma.o
> -
>   obj-$(CONFIG_PCIC_PCI)    += pcic.o
>   obj-$(CONFIG_LEON_PCI)    += leon_pci.o
>   obj-$(CONFIG_SPARC_GRPCI2)+= leon_pci_grpci2.o
> diff --git a/arch/sparc/kernel/dma.c b/arch/sparc/kernel/dma.c
> deleted file mode 100644
> index f73e7597c971..000000000000
> --- a/arch/sparc/kernel/dma.c
> +++ /dev/null
> @@ -1,13 +0,0 @@
> -// SPDX-License-Identifier: GPL-2.0
> -#include <linux/kernel.h>
> -#include <linux/dma-mapping.h>
> -#include <linux/dma-debug.h>
> -
> -#define PREALLOC_DMA_DEBUG_ENTRIES       (1 << 15)
> -
> -static int __init dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -fs_initcall(dma_init);
> diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
> index 77625b60a510..bcbaa2e8031e 100644
> --- a/arch/x86/kernel/pci-dma.c
> +++ b/arch/x86/kernel/pci-dma.c
> @@ -55,9 +55,6 @@ struct device x86_dma_fallback_dev = {
>   };
>   EXPORT_SYMBOL(x86_dma_fallback_dev);
>   
> -/* Number of entries preallocated for DMA-API debugging */
> -#define PREALLOC_DMA_DEBUG_ENTRIES       65536
> -
>   void __init pci_iommu_alloc(void)
>   {
>   	struct iommu_table_entry *p;
> @@ -189,7 +186,6 @@ EXPORT_SYMBOL(arch_dma_supported);
>   static int __init pci_iommu_init(void)
>   {
>   	struct iommu_table_entry *p;
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
>   
>   #ifdef CONFIG_PCI
>   	dma_debug_add_bus(&pci_bus_type);
> diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
> index 732631ce250f..392b4a80ebc2 100644
> --- a/arch/xtensa/kernel/pci-dma.c
> +++ b/arch/xtensa/kernel/pci-dma.c
> @@ -261,12 +261,3 @@ const struct dma_map_ops xtensa_dma_map_ops = {
>   	.mapping_error = xtensa_dma_mapping_error,
>   };
>   EXPORT_SYMBOL(xtensa_dma_map_ops);
> -
> -#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> -
> -static int __init xtensa_dma_init(void)
> -{
> -	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
> -	return 0;
> -}
> -fs_initcall(xtensa_dma_init);
> diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
> index c7d844f09c3a..a785f2507159 100644
> --- a/include/linux/dma-debug.h
> +++ b/include/linux/dma-debug.h
> @@ -30,8 +30,6 @@ struct bus_type;
>   
>   extern void dma_debug_add_bus(struct bus_type *bus);
>   
> -extern void dma_debug_init(u32 num_entries);
> -
>   extern int dma_debug_resize_entries(u32 num_entries);
>   
>   extern void debug_dma_map_page(struct device *dev, struct page *page,
> @@ -100,10 +98,6 @@ static inline void dma_debug_add_bus(struct bus_type *bus)
>   {
>   }
>   
> -static inline void dma_debug_init(u32 num_entries)
> -{
> -}
> -
>   static inline int dma_debug_resize_entries(u32 num_entries)
>   {
>   	return 0;
> diff --git a/lib/dma-debug.c b/lib/dma-debug.c
> index 7f5cdc1e6b29..712a897174e4 100644
> --- a/lib/dma-debug.c
> +++ b/lib/dma-debug.c
> @@ -41,6 +41,11 @@
>   #define HASH_FN_SHIFT   13
>   #define HASH_FN_MASK    (HASH_SIZE - 1)
>   
> +/* allow architectures to override this if absolutely required */
> +#ifndef PREALLOC_DMA_DEBUG_ENTRIES
> +#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
> +#endif
> +
>   enum {
>   	dma_debug_single,
>   	dma_debug_page,
> @@ -1004,18 +1009,16 @@ void dma_debug_add_bus(struct bus_type *bus)
>   	bus_register_notifier(bus, nb);
>   }
>   
> -/*
> - * Let the architectures decide how many entries should be preallocated.
> - */
> -void dma_debug_init(u32 num_entries)
> +static int dma_debug_init(void)
>   {
> +	u32 num_entries;
>   	int i;
>   
>   	/* Do not use dma_debug_initialized here, since we really want to be
>   	 * called to set dma_debug_initialized
>   	 */
>   	if (global_disable)
> -		return;
> +		return 0;
>   
>   	for (i = 0; i < HASH_SIZE; ++i) {
>   		INIT_LIST_HEAD(&dma_entry_hash[i].list);
> @@ -1026,17 +1029,19 @@ void dma_debug_init(u32 num_entries)
>   		pr_err("DMA-API: error creating debugfs entries - disabling\n");
>   		global_disable = true;
>   
> -		return;
> +		return 0;
>   	}
>   
>   	if (req_entries)
>   		num_entries = req_entries;
> +	else
> +		num_entries = PREALLOC_DMA_DEBUG_ENTRIES;
>   
>   	if (prealloc_memory(num_entries) != 0) {
>   		pr_err("DMA-API: debugging out of memory error - disabled\n");
>   		global_disable = true;
>   
> -		return;
> +		return 0;
>   	}
>   
>   	nr_total_entries = num_free_entries;
> @@ -1044,7 +1049,9 @@ void dma_debug_init(u32 num_entries)
>   	dma_debug_initialized = true;
>   
>   	pr_info("DMA-API: debugging enabled by kernel config\n");
> +	return 0;
>   }
> +core_initcall(dma_debug_init);
>   
>   static __init int dma_debug_cmdline(char *str)
>   {

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland


From - Thu Nov 08 21:41:25 2018
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH 3/3] dma-debug: unexport dma_debug_resize_entries and
        debug_dma_dump_mappings
Date: Tue, 8 May 2018 12:45:56 +0200
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Approved: news@gmane.org
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On Tue, May 08, 2018 at 11:05:20AM +0100, Robin Murphy wrote:
> On 24/04/18 15:02, Christoph Hellwig wrote:
>> Only used by the AMD GART driver, which must be built in.
>
> FWIW debug_dma_dump_mappings() is also called by the Intel VT-d driver, but 
> the same reasoning still applies.

I'll update the changelog.

> This does rather beg the question of 
> whether it's right to have bits of low-level dma-debug internals *only* 
> called by a couple of IOMMU drivers, but that can wait for another day.

My gut feeling is that it is wrong, but I didn't have time to look into
the details and history of how this happened.


From - Thu Nov 08 21:41:25 2018
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On 05/07/18 at 11:50pm, kbuild test robot wrote:
> Hi Baoquan,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.17-rc4 next-20180504]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> 
> url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180507-144345
> config: arm-allmodconfig (attached as .config)
> compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         make.cross ARCH=arm 
> 
> All errors (new ones prefixed by >>):

Thanks, below patch can fix it:


diff --git a/arch/arm/plat-samsung/pm-check.c b/arch/arm/plat-samsung/pm-check.c
index cd2c02c68bc3..5494355b1c49 100644
--- a/arch/arm/plat-samsung/pm-check.c
+++ b/arch/arm/plat-samsung/pm-check.c
@@ -46,8 +46,8 @@ typedef u32 *(run_fn_t)(struct resource *ptr, u32 *arg);
 static void s3c_pm_run_res(struct resource *ptr, run_fn_t fn, u32 *arg)
 {
 	while (ptr != NULL) {
-		if (ptr->child != NULL)
-			s3c_pm_run_res(ptr->child, fn, arg);
+		if (!list_empty(&ptr->child))
+			s3c_pm_run_res(resource_first_child(&ptr->child), fn, arg);
 
 		if ((ptr->flags & IORESOURCE_SYSTEM_RAM)
 				== IORESOURCE_SYSTEM_RAM) {
@@ -57,7 +57,7 @@ static void s3c_pm_run_res(struct resource *ptr, run_fn_t fn, u32 *arg)
 			arg = (fn)(ptr, arg);
 		}
 
-		ptr = ptr->sibling;
+		ptr = resource_sibling(ptr);
 	}
 }
 

> 
>    arch/arm/plat-samsung/pm-check.c: In function 's3c_pm_run_res':
> >> arch/arm/plat-samsung/pm-check.c:49:18: error: invalid operands to binary != (have 'struct list_head' and 'void *')
>       if (ptr->child != NULL)
>           ~~~~~~~~~~ ^~
> >> arch/arm/plat-samsung/pm-check.c:50:19: error: incompatible type for argument 1 of 's3c_pm_run_res'
>        s3c_pm_run_res(ptr->child, fn, arg);
>                       ^~~
>    arch/arm/plat-samsung/pm-check.c:46:13: note: expected 'struct resource *' but argument is of type 'struct list_head'
>     static void s3c_pm_run_res(struct resource *ptr, run_fn_t fn, u32 *arg)
>                 ^~~~~~~~~~~~~~
> >> arch/arm/plat-samsung/pm-check.c:60:7: error: incompatible types when assigning to type 'struct resource *' from type 'struct list_head'
>       ptr = ptr->sibling;
>           ^
> 
> vim +49 arch/arm/plat-samsung/pm-check.c
> 
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  45  
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  46  static void s3c_pm_run_res(struct resource *ptr, run_fn_t fn, u32 *arg)
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  47  {
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  48  	while (ptr != NULL) {
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12 @49  		if (ptr->child != NULL)
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12 @50  			s3c_pm_run_res(ptr->child, fn, arg);
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  51  
> 05fee7cf arch/arm/plat-samsung/pm-check.c Toshi Kani 2016-01-26  52  		if ((ptr->flags & IORESOURCE_SYSTEM_RAM)
> 05fee7cf arch/arm/plat-samsung/pm-check.c Toshi Kani 2016-01-26  53  				== IORESOURCE_SYSTEM_RAM) {
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  54  			S3C_PMDBG("Found system RAM at %08lx..%08lx\n",
> 840eeeb8 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  55  				  (unsigned long)ptr->start,
> 840eeeb8 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  56  				  (unsigned long)ptr->end);
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  57  			arg = (fn)(ptr, arg);
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  58  		}
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  59  
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12 @60  		ptr = ptr->sibling;
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  61  	}
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  62  }
> 549c7e33 arch/arm/plat-s3c/pm-check.c     Ben Dooks  2008-12-12  63  
> 
> :::::: The code at line 49 was first introduced by commit
> :::::: 549c7e33aeb9bfe441ecf68639d2227bb90978e7 [ARM] S3C: Split the resume memory check code from pm.c
> 
> :::::: TO: Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>
> :::::: CC: Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.kernel
Subject: Re: [PATCH v4 1/3] resource: Use list_head to link sibling resource
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On 05/07/18 at 07:42pm, kbuild test robot wrote:
> Hi Baoquan,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.17-rc4 next-20180504]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> 
> url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180507-144345
> config: powerpc-defconfig (attached as .config)
> compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         make.cross ARCH=powerpc 
> 
> All errors (new ones prefixed by >>):
> 
>    arch/powerpc/kernel/pci-common.c: In function 'pci_process_bridge_OF_ranges':
> >> arch/powerpc/kernel/pci-common.c:764:44: error: incompatible types when assigning to type 'struct list_head' from type 'void *'
>        res->parent = res->child = res->sibling = NULL;

Pasted code can fix above error.

diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index fe9733ffffaa..a7e68f6f9f24 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -761,7 +761,9 @@ void pci_process_bridge_OF_ranges(struct pci_controller *hose,
 			res->flags = range.flags;
 			res->start = range.cpu_addr;
 			res->end = range.cpu_addr + range.size - 1;
-			res->parent = res->child = res->sibling = NULL;
+			res->parent = NULL;
+			INIT_LIST_HEAD(&res->child);
+			INIT_LIST_HEAD(&res->sibling);
 		}
 	}
 }

>                                                ^
>    arch/powerpc/kernel/pci-common.c: In function 'reparent_resources':
> >> arch/powerpc/kernel/pci-common.c:1100:10: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types]
>      for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
>              ^

This reparent_resources() function is duplicated with the one in
arch/microblaze/pci/pci-common.c which has been fixed in v4. I planned
to move it to kernel/resource.c in a separate patch since it's shared by
different ARCH, then fix it in this patch.

>    arch/powerpc/kernel/pci-common.c:1100:50: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types]
>      for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
>                                                      ^
> >> arch/powerpc/kernel/pci-common.c:1113:13: error: incompatible types when assigning to type 'struct list_head' from type 'struct resource *'
>      res->child = *firstpp;
>                 ^
>    arch/powerpc/kernel/pci-common.c:1114:15: error: incompatible types when assigning to type 'struct list_head' from type 'struct resource *'
>      res->sibling = *pp;
>                   ^
> >> arch/powerpc/kernel/pci-common.c:1117:9: error: incompatible types when assigning to type 'struct resource *' from type 'struct list_head'
>      for (p = res->child; p != NULL; p = p->sibling) {
>             ^
>    arch/powerpc/kernel/pci-common.c:1117:36: error: incompatible types when assigning to type 'struct resource *' from type 'struct list_head'
>      for (p = res->child; p != NULL; p = p->sibling) {
>                                        ^
>    cc1: all warnings being treated as errors
> 
> vim +764 arch/powerpc/kernel/pci-common.c
> 
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  642  
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  643  /**
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  644   * pci_process_bridge_OF_ranges - Parse PCI bridge resources from device tree
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  645   * @hose: newly allocated pci_controller to be setup
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  646   * @dev: device node of the host bridge
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  647   * @primary: set if primary bus (32 bits only, soon to be deprecated)
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  648   *
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  649   * This function will parse the "ranges" property of a PCI host bridge device
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  650   * node and setup the resource mapping of a pci controller based on its
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  651   * content.
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  652   *
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  653   * Life would be boring if it wasn't for a few issues that we have to deal
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  654   * with here:
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  655   *
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  656   *   - We can only cope with one IO space range and up to 3 Memory space
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  657   *     ranges. However, some machines (thanks Apple !) tend to split their
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  658   *     space into lots of small contiguous ranges. So we have to coalesce.
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  659   *
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  660   *   - Some busses have IO space not starting at 0, which causes trouble with
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  661   *     the way we do our IO resource renumbering. The code somewhat deals with
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  662   *     it for 64 bits but I would expect problems on 32 bits.
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  663   *
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  664   *   - Some 32 bits platforms such as 4xx can have physical space larger than
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  665   *     32 bits so we need to use 64 bits values for the parsing
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  666   */
> cad5cef6 Greg Kroah-Hartman     2012-12-21  667  void pci_process_bridge_OF_ranges(struct pci_controller *hose,
> cad5cef6 Greg Kroah-Hartman     2012-12-21  668  				  struct device_node *dev, int primary)
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  669  {
> 858957ab Kevin Hao              2013-05-16  670  	int memno = 0;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  671  	struct resource *res;
> 654837e8 Andrew Murray          2014-02-25  672  	struct of_pci_range range;
> 654837e8 Andrew Murray          2014-02-25  673  	struct of_pci_range_parser parser;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  674  
> b7c670d6 Rob Herring            2017-08-21  675  	printk(KERN_INFO "PCI host bridge %pOF %s ranges:\n",
> b7c670d6 Rob Herring            2017-08-21  676  	       dev, primary ? "(primary)" : "");
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  677  
> 654837e8 Andrew Murray          2014-02-25  678  	/* Check for ranges property */
> 654837e8 Andrew Murray          2014-02-25  679  	if (of_pci_range_parser_init(&parser, dev))
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  680  		return;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  681  
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  682  	/* Parse it */
> 654837e8 Andrew Murray          2014-02-25  683  	for_each_of_pci_range(&parser, &range) {
> e9f82cb7 Benjamin Herrenschmidt 2008-10-14  684  		/* If we failed translation or got a zero-sized region
> e9f82cb7 Benjamin Herrenschmidt 2008-10-14  685  		 * (some FW try to feed us with non sensical zero sized regions
> e9f82cb7 Benjamin Herrenschmidt 2008-10-14  686  		 * such as power3 which look like some kind of attempt at exposing
> e9f82cb7 Benjamin Herrenschmidt 2008-10-14  687  		 * the VGA memory hole)
> e9f82cb7 Benjamin Herrenschmidt 2008-10-14  688  		 */
> 654837e8 Andrew Murray          2014-02-25  689  		if (range.cpu_addr == OF_BAD_ADDR || range.size == 0)
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  690  			continue;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  691  
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  692  		/* Act based on address space type */
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  693  		res = NULL;
> 654837e8 Andrew Murray          2014-02-25  694  		switch (range.flags & IORESOURCE_TYPE_BITS) {
> 654837e8 Andrew Murray          2014-02-25  695  		case IORESOURCE_IO:
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  696  			printk(KERN_INFO
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  697  			       "  IO 0x%016llx..0x%016llx -> 0x%016llx\n",
> 654837e8 Andrew Murray          2014-02-25  698  			       range.cpu_addr, range.cpu_addr + range.size - 1,
> 654837e8 Andrew Murray          2014-02-25  699  			       range.pci_addr);
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  700  
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  701  			/* We support only one IO range */
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  702  			if (hose->pci_io_size) {
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  703  				printk(KERN_INFO
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  704  				       " \\--> Skipped (too many) !\n");
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  705  				continue;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  706  			}
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  707  #ifdef CONFIG_PPC32
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  708  			/* On 32 bits, limit I/O space to 16MB */
> 654837e8 Andrew Murray          2014-02-25  709  			if (range.size > 0x01000000)
> 654837e8 Andrew Murray          2014-02-25  710  				range.size = 0x01000000;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  711  
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  712  			/* 32 bits needs to map IOs here */
> 654837e8 Andrew Murray          2014-02-25  713  			hose->io_base_virt = ioremap(range.cpu_addr,
> 654837e8 Andrew Murray          2014-02-25  714  						range.size);
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  715  
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  716  			/* Expect trouble if pci_addr is not 0 */
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  717  			if (primary)
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  718  				isa_io_base =
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  719  					(unsigned long)hose->io_base_virt;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  720  #endif /* CONFIG_PPC32 */
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  721  			/* pci_io_size and io_base_phys always represent IO
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  722  			 * space starting at 0 so we factor in pci_addr
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  723  			 */
> 654837e8 Andrew Murray          2014-02-25  724  			hose->pci_io_size = range.pci_addr + range.size;
> 654837e8 Andrew Murray          2014-02-25  725  			hose->io_base_phys = range.cpu_addr - range.pci_addr;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  726  
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  727  			/* Build resource */
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  728  			res = &hose->io_resource;
> 654837e8 Andrew Murray          2014-02-25  729  			range.cpu_addr = range.pci_addr;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  730  			break;
> 654837e8 Andrew Murray          2014-02-25  731  		case IORESOURCE_MEM:
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  732  			printk(KERN_INFO
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  733  			       " MEM 0x%016llx..0x%016llx -> 0x%016llx %s\n",
> 654837e8 Andrew Murray          2014-02-25  734  			       range.cpu_addr, range.cpu_addr + range.size - 1,
> 654837e8 Andrew Murray          2014-02-25  735  			       range.pci_addr,
> 654837e8 Andrew Murray          2014-02-25  736  			       (range.pci_space & 0x40000000) ?
> 654837e8 Andrew Murray          2014-02-25  737  			       "Prefetch" : "");
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  738  
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  739  			/* We support only 3 memory ranges */
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  740  			if (memno >= 3) {
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  741  				printk(KERN_INFO
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  742  				       " \\--> Skipped (too many) !\n");
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  743  				continue;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  744  			}
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  745  			/* Handles ISA memory hole space here */
> 654837e8 Andrew Murray          2014-02-25  746  			if (range.pci_addr == 0) {
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  747  				if (primary || isa_mem_base == 0)
> 654837e8 Andrew Murray          2014-02-25  748  					isa_mem_base = range.cpu_addr;
> 654837e8 Andrew Murray          2014-02-25  749  				hose->isa_mem_phys = range.cpu_addr;
> 654837e8 Andrew Murray          2014-02-25  750  				hose->isa_mem_size = range.size;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  751  			}
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  752  
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  753  			/* Build resource */
> 654837e8 Andrew Murray          2014-02-25  754  			hose->mem_offset[memno] = range.cpu_addr -
> 654837e8 Andrew Murray          2014-02-25  755  							range.pci_addr;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  756  			res = &hose->mem_resources[memno++];
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  757  			break;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  758  		}
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  759  		if (res != NULL) {
> aeba3731 Michael Ellerman       2014-10-16  760  			res->name = dev->full_name;
> aeba3731 Michael Ellerman       2014-10-16  761  			res->flags = range.flags;
> aeba3731 Michael Ellerman       2014-10-16  762  			res->start = range.cpu_addr;
> aeba3731 Michael Ellerman       2014-10-16  763  			res->end = range.cpu_addr + range.size - 1;
> aeba3731 Michael Ellerman       2014-10-16 @764  			res->parent = res->child = res->sibling = NULL;
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  765  		}
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  766  	}
> 13dccb9e Benjamin Herrenschmidt 2007-12-11  767  }
> fa462f2d Benjamin Herrenschmidt 2007-12-20  768  
> 
> :::::: The code at line 764 was first introduced by commit
> :::::: aeba3731b150188685225b510886f1370d8814de powerpc/pci: Fix IO space breakage after of_pci_range_to_resource() change
> 
> :::::: TO: Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>
> :::::: CC: Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

From - Thu Nov 08 21:41:25 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.documentation,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH v2 10/11] arch/*: Kconfig: fix documentation for NMI watchdog
Date: Wed,  9 May 2018 10:18:53 -0300
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Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
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        linux-kernel@vger.kernel.org, Jonathan Corbet <corbet@lwn.net>,
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Changeset 9919cba7ff71 ("watchdog: Update documentation") updated
the documentation, removing the old nmi_watchdog.txt and adding
a file with a new content.

Update Kconfig files accordingly.

Fixes: 9919cba7ff71 ("watchdog: Update documentation")

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---
 arch/arm/Kconfig    | 2 +-
 arch/parisc/Kconfig | 2 +-
 arch/sh/Kconfig     | 2 +-
 arch/sparc/Kconfig  | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a7f8e7f4b88f..7b4fa8356978 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1305,7 +1305,7 @@ config SMP
 	  will run faster if you say N here.
 
 	  See also <file:Documentation/x86/i386/IO-APIC.txt>,
-	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
+	  <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO available at
 	  <http://tldp.org/HOWTO/SMP-HOWTO.html>.
 
 	  If you don't know what to do here, say N.
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index fc5a574c3482..b6823215cc9a 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -279,7 +279,7 @@ config SMP
 	  machines, but will use only one CPU of a multiprocessor machine.
 	  On a uniprocessor machine, the kernel will run faster if you say N.
 
-	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
 	  available at <http://www.tldp.org/docs.html#howto>.
 
 	  If you don't know what to do here, say N.
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 97fe29316476..bf628dd7c195 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -689,7 +689,7 @@ config SMP
 	  People using multiprocessor machines who say Y here should also say
 	  Y to "Enhanced Real Time Clock Support", below.
 
-	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
 	  available at <http://www.tldp.org/docs.html#howto>.
 
 	  If you don't know what to do here, say N.
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 8767e45f1b2b..66171c2e428b 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -189,7 +189,7 @@ config SMP
 	  Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
 	  Management" code will be disabled if you say Y here.
 
-	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
 	  available at <http://www.tldp.org/docs.html#howto>.
 
 	  If you don't know what to do here, say N.
-- 
2.17.0



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Subject: common non-cache coherent direct dma mapping ops
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Hi all,

this series continues consolidating the dma-mapping code, with a focus
on architectures that do not (always) provide cache coherence for DMA.
Three architectures (arm, mips and powerpc) are still left to be
converted later due to complexity of their dma ops selection.

The dma-noncoherent ops calls the dma-direct ops for the actual
translation of streaming mappins and allow the architecture to provide
any cache flushing required for cpu to device and/or device to cpu
ownership transfers.  The dma coherent allocator is for now still left
entirely to architecture supplied implementations due the amount of
variations.  Hopefully we can do some consolidation for them later on
as well.

A lot of architectures are currently doing very questionable things
in their dma mapping routines, which are documented in the changelogs
for each patch.  Please review them very careful and correct me on
incorrect assumptions.

Because this series sits on top of two previously submitted series
a git tree might be useful to actually test it.  It is provided here:

    git://git.infradead.org/users/hch/misc.git generic-dma-noncoherent

Gitweb:

    http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/generic-dma-noncoherent

Changes since RFC:
 - fix a typo accidentally disabling the device to cpu transfer sync
 - fixed a few compile failures

From - Thu Nov 08 21:41:25 2018
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Subject: [PATCH 01/20] dma-mapping: simplify Kconfig dependencies
Date: Fri, 11 May 2018 09:59:26 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3864>

ARCH_DMA_ADDR_T_64BIT is always true for 64-bit architectures now, so we
can skip the clause requiring it.  'n' is the default default, so no need
to explicitly state it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 lib/Kconfig | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/lib/Kconfig b/lib/Kconfig
index 1d84e61cccfe..6c4e9d0ce5d1 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -443,13 +443,11 @@ config IOMMU_HELPER
 
 config DMA_DIRECT_OPS
 	bool
-	depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
-	default n
+	depends on HAS_DMA
 
 config DMA_VIRT_OPS
 	bool
-	depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
-	default n
+	depends on HAS_DMA
 
 config SWIOTLB
 	bool
-- 
2.17.0

From - Thu Nov 08 21:41:25 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 02/20] dma-mapping: provide a generic dma-noncoherent
	implementation
Date: Fri, 11 May 2018 09:59:27 +0200
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24169>

Add a new dma_map_ops implementation that uses dma-direct for the
address mapping of streaming mappings, and which requires arch-specific
implemenations of coherent allocate/free.

Architectures have to provide flushing helpers to ownership trasnfers
to the device and/or CPU, and can provide optional implementations of
the coherent mmap functionality, and the cache_flush routines for
non-coherent long term allocations.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 MAINTAINERS                       |   2 +
 include/asm-generic/dma-mapping.h |   9 +++
 include/linux/dma-direct.h        |   7 ++-
 include/linux/dma-mapping.h       |   1 +
 include/linux/dma-noncoherent.h   |  47 ++++++++++++++
 lib/Kconfig                       |  20 ++++++
 lib/Makefile                      |   1 +
 lib/dma-direct.c                  |   8 +--
 lib/dma-noncoherent.c             | 101 ++++++++++++++++++++++++++++++
 9 files changed, 191 insertions(+), 5 deletions(-)
 create mode 100644 include/linux/dma-noncoherent.h
 create mode 100644 lib/dma-noncoherent.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 79bb02ff812f..08d0d15d4958 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4334,12 +4334,14 @@ W:	http://git.infradead.org/users/hch/dma-mapping.git
 S:	Supported
 F:	lib/dma-debug.c
 F:	lib/dma-direct.c
+F:	lib/dma-noncoherent.c
 F:	lib/dma-virt.c
 F:	drivers/base/dma-mapping.c
 F:	drivers/base/dma-coherent.c
 F:	include/asm-generic/dma-mapping.h
 F:	include/linux/dma-direct.h
 F:	include/linux/dma-mapping.h
+F:	include/linux/dma-noncoherent.h
 
 DME1737 HARDWARE MONITOR DRIVER
 M:	Juerg Haefliger <juergh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
diff --git a/include/asm-generic/dma-mapping.h b/include/asm-generic/dma-mapping.h
index 880a292d792f..ad2868263867 100644
--- a/include/asm-generic/dma-mapping.h
+++ b/include/asm-generic/dma-mapping.h
@@ -4,7 +4,16 @@
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
+	/*
+	 * Use the non-coherent ops if available.  If an architecture wants a
+	 * more fine-grained selection of operations it will have to implement
+	 * get_arch_dma_ops itself or use the per-device dma_ops.
+	 */
+#ifdef CONFIG_DMA_NONCOHERENT_OPS
+	return &dma_noncoherent_ops;
+#else
 	return &dma_direct_ops;
+#endif
 }
 
 #endif /* _ASM_GENERIC_DMA_MAPPING_H */
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 53ad6a47f513..8d9f33febde5 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -59,6 +59,11 @@ void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
 		gfp_t gfp, unsigned long attrs);
 void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		dma_addr_t dma_addr, unsigned long attrs);
+dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size, enum dma_data_direction dir,
+		unsigned long attrs);
+int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
+		enum dma_data_direction dir, unsigned long attrs);
 int dma_direct_supported(struct device *dev, u64 mask);
-
+int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr);
 #endif /* _LINUX_DMA_DIRECT_H */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 25a9a2b04f78..4be070df5fc5 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -136,6 +136,7 @@ struct dma_map_ops {
 };
 
 extern const struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_noncoherent_ops;
 extern const struct dma_map_ops dma_virt_ops;
 
 #define DMA_BIT_MASK(n)	(((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
diff --git a/include/linux/dma-noncoherent.h b/include/linux/dma-noncoherent.h
new file mode 100644
index 000000000000..10b2654d549b
--- /dev/null
+++ b/include/linux/dma-noncoherent.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_DMA_NONCOHERENT_H
+#define _LINUX_DMA_NONCOHERENT_H 1
+
+#include <linux/dma-mapping.h>
+
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs);
+void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t dma_addr, unsigned long attrs);
+
+#ifdef CONFIG_DMA_NONCOHERENT_MMAP
+int arch_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+		void *cpu_addr, dma_addr_t dma_addr, size_t size,
+		unsigned long attrs);
+#else
+#define arch_dma_mmap NULL
+#endif /* CONFIG_DMA_NONCOHERENT_MMAP */
+
+#ifdef CONFIG_DMA_NONCOHERENT_CACHE_SYNC
+void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+		enum dma_data_direction direction);
+#else
+#define arch_dma_cache_sync NULL
+#endif /* CONFIG_DMA_NONCOHERENT_CACHE_SYNC */
+
+#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir);
+#else
+static inline void arch_sync_dma_for_device(struct device *dev,
+		phys_addr_t paddr, size_t size, enum dma_data_direction dir)
+{
+}
+#endif /* ARCH_HAS_SYNC_DMA_FOR_DEVICE */
+
+#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir);
+#else
+static inline void arch_sync_dma_for_cpu(struct device *dev,
+		phys_addr_t paddr, size_t size, enum dma_data_direction dir)
+{
+}
+#endif /* ARCH_HAS_SYNC_DMA_FOR_CPU */
+
+#endif /* _LINUX_DMA_NONCOHERENT_H */
diff --git a/lib/Kconfig b/lib/Kconfig
index 6c4e9d0ce5d1..7a913937888b 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -441,10 +441,30 @@ config ARCH_DMA_ADDR_T_64BIT
 config IOMMU_HELPER
 	bool
 
+config ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	bool
+
+config ARCH_HAS_SYNC_DMA_FOR_CPU
+	bool
+	select NEED_DMA_MAP_STATE
+
 config DMA_DIRECT_OPS
 	bool
 	depends on HAS_DMA
 
+config DMA_NONCOHERENT_OPS
+	bool
+	depends on HAS_DMA
+	select DMA_DIRECT_OPS
+
+config DMA_NONCOHERENT_MMAP
+	bool
+	depends on DMA_NONCOHERENT_OPS
+
+config DMA_NONCOHERENT_CACHE_SYNC
+	bool
+	depends on DMA_NONCOHERENT_OPS
+
 config DMA_VIRT_OPS
 	bool
 	depends on HAS_DMA
diff --git a/lib/Makefile b/lib/Makefile
index 94203b5eecd4..9f18c8152281 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -30,6 +30,7 @@ lib-$(CONFIG_PRINTK) += dump_stack.o
 lib-$(CONFIG_MMU) += ioremap.o
 lib-$(CONFIG_SMP) += cpumask.o
 lib-$(CONFIG_DMA_DIRECT_OPS) += dma-direct.o
+lib-$(CONFIG_DMA_NONCOHERENT_OPS) += dma-noncoherent.o
 lib-$(CONFIG_DMA_VIRT_OPS) += dma-virt.o
 
 lib-y	+= kobject.o klist.o
diff --git a/lib/dma-direct.c b/lib/dma-direct.c
index df9e726e0712..b824eb218782 100644
--- a/lib/dma-direct.c
+++ b/lib/dma-direct.c
@@ -128,7 +128,7 @@ void dma_direct_free(struct device *dev, size_t size, void *cpu_addr,
 		free_pages((unsigned long)cpu_addr, page_order);
 }
 
-static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
+dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
 		unsigned long offset, size_t size, enum dma_data_direction dir,
 		unsigned long attrs)
 {
@@ -139,8 +139,8 @@ static dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
 	return dma_addr;
 }
 
-static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
-		int nents, enum dma_data_direction dir, unsigned long attrs)
+int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
+		enum dma_data_direction dir, unsigned long attrs)
 {
 	int i;
 	struct scatterlist *sg;
@@ -175,7 +175,7 @@ int dma_direct_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-static int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr)
+int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
 	return dma_addr == DIRECT_MAPPING_ERROR;
 }
diff --git a/lib/dma-noncoherent.c b/lib/dma-noncoherent.c
new file mode 100644
index 000000000000..a2c192b3508d
--- /dev/null
+++ b/lib/dma-noncoherent.c
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018 Christoph Hellwig.
+ *
+ * DMA operations that map physical memory directly without providing cache
+ * coherence.
+ */
+#include <linux/export.h>
+#include <linux/mm.h>
+#include <linux/dma-direct.h>
+#include <linux/dma-noncoherent.h>
+#include <linux/scatterlist.h>
+
+static void dma_noncoherent_sync_single_for_device(struct device *dev,
+		dma_addr_t addr, size_t size, enum dma_data_direction dir)
+{
+	arch_sync_dma_for_device(dev, dma_to_phys(dev, addr), size, dir);
+}
+
+static void dma_noncoherent_sync_sg_for_device(struct device *dev,
+		struct scatterlist *sgl, int nents, enum dma_data_direction dir)
+{
+	struct scatterlist *sg;
+	int i;
+
+	for_each_sg(sgl, sg, nents, i)
+		arch_sync_dma_for_device(dev, sg_phys(sg), sg->length, dir);
+}
+
+static dma_addr_t dma_noncoherent_map_page(struct device *dev, struct page *page,
+		unsigned long offset, size_t size, enum dma_data_direction dir,
+		unsigned long attrs)
+{
+	dma_addr_t addr;
+
+	addr = dma_direct_map_page(dev, page, offset, size, dir, attrs);
+	if (!dma_mapping_error(dev, addr) && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		arch_sync_dma_for_device(dev, page_to_phys(page), size, dir);
+	return addr;
+}
+
+static int dma_noncoherent_map_sg(struct device *dev, struct scatterlist *sgl,
+		int nents, enum dma_data_direction dir, unsigned long attrs)
+{
+	nents = dma_direct_map_sg(dev, sgl, nents, dir, attrs);
+	if (nents > 0 && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		dma_noncoherent_sync_sg_for_device(dev, sgl, nents, dir);
+	return nents;
+}
+
+#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
+static void dma_noncoherent_sync_single_for_cpu(struct device *dev,
+		dma_addr_t addr, size_t size, enum dma_data_direction dir)
+{
+	arch_sync_dma_for_cpu(dev, dma_to_phys(dev, addr), size, dir);
+}
+
+static void dma_noncoherent_sync_sg_for_cpu(struct device *dev,
+		struct scatterlist *sgl, int nents, enum dma_data_direction dir)
+{
+	struct scatterlist *sg;
+	int i;
+
+	for_each_sg(sgl, sg, nents, i)
+		arch_sync_dma_for_cpu(dev, sg_phys(sg), sg->length, dir);
+}
+
+static void dma_noncoherent_unmap_page(struct device *dev, dma_addr_t addr,
+		size_t size, enum dma_data_direction dir, unsigned long attrs)
+{
+	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		dma_noncoherent_sync_single_for_cpu(dev, addr, size, dir);
+}
+
+static void dma_noncoherent_unmap_sg(struct device *dev, struct scatterlist *sgl,
+		int nents, enum dma_data_direction dir, unsigned long attrs)
+{
+	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		dma_noncoherent_sync_sg_for_cpu(dev, sgl, nents, dir);
+}
+#endif
+
+const struct dma_map_ops dma_noncoherent_ops = {
+	.alloc			= arch_dma_alloc,
+	.free			= arch_dma_free,
+	.mmap			= arch_dma_mmap,
+	.sync_single_for_device	= dma_noncoherent_sync_single_for_device,
+	.sync_sg_for_device	= dma_noncoherent_sync_sg_for_device,
+	.map_page		= dma_noncoherent_map_page,
+	.map_sg			= dma_noncoherent_map_sg,
+#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
+	.sync_single_for_cpu	= dma_noncoherent_sync_single_for_cpu,
+	.sync_sg_for_cpu	= dma_noncoherent_sync_sg_for_cpu,
+	.unmap_page		= dma_noncoherent_unmap_page,
+	.unmap_sg		= dma_noncoherent_unmap_sg,
+#endif
+	.dma_supported		= dma_direct_supported,
+	.mapping_error		= dma_direct_mapping_error,
+	.cache_sync		= arch_dma_cache_sync,
+};
+EXPORT_SYMBOL(dma_noncoherent_ops);
-- 
2.17.0


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Subject: [PATCH 03/20] arc: use generic dma_noncoherent_ops
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Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/arc/Kconfig                   |   4 +
 arch/arc/include/asm/Kbuild        |   1 +
 arch/arc/include/asm/dma-mapping.h |  21 -----
 arch/arc/mm/dma.c                  | 141 +++--------------------------
 4 files changed, 19 insertions(+), 148 deletions(-)
 delete mode 100644 arch/arc/include/asm/dma-mapping.h

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 7498aca4b887..89d47eac18b2 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -9,11 +9,15 @@
 config ARC
 	def_bool y
 	select ARC_TIMERS
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_HAS_SG_CHAIN
 	select ARCH_SUPPORTS_ATOMIC_RMW if ARC_HAS_LLSC
 	select BUILDTIME_EXTABLE_SORT
 	select CLONE_BACKWARDS
 	select COMMON_CLK
+	select DMA_NONCOHERENT_OPS
+	select DMA_NONCOHERENT_MMAP
 	select GENERIC_ATOMIC64 if !ISA_ARCV2 || !(ARC_HAS_LL64 && ARC_HAS_LLSC)
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_FIND_FIRST_BIT
diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild
index 4bd5d4369e05..bbdcb955e18f 100644
--- a/arch/arc/include/asm/Kbuild
+++ b/arch/arc/include/asm/Kbuild
@@ -2,6 +2,7 @@
 generic-y += bugs.h
 generic-y += device.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += extable.h
 generic-y += fb.h
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
deleted file mode 100644
index 7a16824bfe98..000000000000
--- a/arch/arc/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * DMA Mapping glue for ARC
- *
- * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef ASM_ARC_DMA_MAPPING_H
-#define ASM_ARC_DMA_MAPPING_H
-
-extern const struct dma_map_ops arc_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &arc_dma_ops;
-}
-
-#endif
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 1dcc404b5aec..e4cd485517b4 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -16,13 +16,12 @@
  * The default DMA address == Phy address which is 0x8000_0000 based.
  */
 
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <asm/cache.h>
 #include <asm/cacheflush.h>
 
-
-static void *arc_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	unsigned long order = get_order(size);
 	struct page *page;
@@ -89,7 +88,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
 	return kvaddr;
 }
 
-static void arc_dma_free(struct device *dev, size_t size, void *vaddr,
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
 	phys_addr_t paddr = dma_handle;
@@ -105,9 +104,9 @@ static void arc_dma_free(struct device *dev, size_t size, void *vaddr,
 	__free_pages(page, get_order(size));
 }
 
-static int arc_dma_mmap(struct device *dev, struct vm_area_struct *vma,
-			void *cpu_addr, dma_addr_t dma_addr, size_t size,
-			unsigned long attrs)
+int arch_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+		void *cpu_addr, dma_addr_t dma_addr, size_t size,
+		unsigned long attrs)
 {
 	unsigned long user_count = vma_pages(vma);
 	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
@@ -135,7 +134,7 @@ static int arc_dma_mmap(struct device *dev, struct vm_area_struct *vma,
  * CPU accesses page via normal paddr, thus needs to explicitly made
  * consistent before each use
  */
-static void _dma_cache_sync(phys_addr_t paddr, size_t size,
+static void _dma_cache_sync(struct device *dev, phys_addr_t paddr, size_t size,
 		enum dma_data_direction dir)
 {
 	switch (dir) {
@@ -153,126 +152,14 @@ static void _dma_cache_sync(phys_addr_t paddr, size_t size,
 	}
 }
 
-/*
- * arc_dma_map_page - map a portion of a page for streaming DMA
- *
- * Ensure that any data held in the cache is appropriately discarded
- * or written back.
- *
- * The device owns this memory once this call has completed.  The CPU
- * can regain ownership by calling dma_unmap_page().
- *
- * Note: while it takes struct page as arg, caller can "abuse" it to pass
- * a region larger than PAGE_SIZE, provided it is physically contiguous
- * and this still works correctly
- */
-static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
-		unsigned long offset, size_t size, enum dma_data_direction dir,
-		unsigned long attrs)
-{
-	phys_addr_t paddr = page_to_phys(page) + offset;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		_dma_cache_sync(paddr, size, dir);
-
-	return paddr;
-}
-
-/*
- * arc_dma_unmap_page - unmap a buffer previously mapped through dma_map_page()
- *
- * After this call, reads by the CPU to the buffer are guaranteed to see
- * whatever the device wrote there.
- *
- * Note: historically this routine was not implemented for ARC
- */
-static void arc_dma_unmap_page(struct device *dev, dma_addr_t handle,
-			       size_t size, enum dma_data_direction dir,
-			       unsigned long attrs)
-{
-	phys_addr_t paddr = handle;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		_dma_cache_sync(paddr, size, dir);
-}
-
-static int arc_dma_map_sg(struct device *dev, struct scatterlist *sg,
-	   int nents, enum dma_data_direction dir, unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i)
-		s->dma_address = dma_map_page(dev, sg_page(s), s->offset,
-					       s->length, dir);
-
-	return nents;
-}
-
-static void arc_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-			     int nents, enum dma_data_direction dir,
-			     unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i)
-		arc_dma_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir,
-				   attrs);
-}
-
-static void arc_dma_sync_single_for_cpu(struct device *dev,
-		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
-{
-	_dma_cache_sync(dma_handle, size, DMA_FROM_DEVICE);
-}
-
-static void arc_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	_dma_cache_sync(dma_handle, size, DMA_TO_DEVICE);
+	return _dma_cache_sync(dev, paddr, size, dir);
 }
 
-static void arc_dma_sync_sg_for_cpu(struct device *dev,
-		struct scatterlist *sglist, int nelems,
-		enum dma_data_direction dir)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nelems, i)
-		_dma_cache_sync(sg_phys(sg), sg->length, dir);
+	return _dma_cache_sync(dev, paddr, size, dir);
 }
-
-static void arc_dma_sync_sg_for_device(struct device *dev,
-		struct scatterlist *sglist, int nelems,
-		enum dma_data_direction dir)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nelems, i)
-		_dma_cache_sync(sg_phys(sg), sg->length, dir);
-}
-
-static int arc_dma_supported(struct device *dev, u64 dma_mask)
-{
-	/* Support 32 bit DMA mask exclusively */
-	return dma_mask == DMA_BIT_MASK(32);
-}
-
-const struct dma_map_ops arc_dma_ops = {
-	.alloc			= arc_dma_alloc,
-	.free			= arc_dma_free,
-	.mmap			= arc_dma_mmap,
-	.map_page		= arc_dma_map_page,
-	.unmap_page		= arc_dma_unmap_page,
-	.map_sg			= arc_dma_map_sg,
-	.unmap_sg		= arc_dma_unmap_sg,
-	.sync_single_for_device	= arc_dma_sync_single_for_device,
-	.sync_single_for_cpu	= arc_dma_sync_single_for_cpu,
-	.sync_sg_for_cpu	= arc_dma_sync_sg_for_cpu,
-	.sync_sg_for_device	= arc_dma_sync_sg_for_device,
-	.dma_supported		= arc_dma_supported,
-};
-EXPORT_SYMBOL(arc_dma_ops);
-- 
2.17.0


From - Thu Nov 08 21:41:26 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 04/20] arm-nommu: use generic dma_noncoherent_ops
Date: Fri, 11 May 2018 09:59:29 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24171>

Switch to the generic noncoherent direct mapping implementation for
the nommu dma map implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/arc/Kconfig                |   1 +
 arch/arm/Kconfig                |   4 +
 arch/arm/mm/dma-mapping-nommu.c | 139 +++++---------------------------
 3 files changed, 23 insertions(+), 121 deletions(-)

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 89d47eac18b2..3a492a9aeaad 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -9,6 +9,7 @@
 config ARC
 	def_bool y
 	select ARC_TIMERS
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_HAS_SYNC_DMA_FOR_CPU
 	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_HAS_SG_CHAIN
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c43f5bb55ac8..76ddd0064f87 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -12,6 +12,8 @@ config ARM
 	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
 	select ARCH_HAS_STRICT_MODULE_RWX if MMU
+	select ARCH_HAS_SYNC_DMA_FOR_CPU if !MMU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE if !MMU
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_HAVE_CUSTOM_GPIO_H
 	select ARCH_HAS_GCOV_PROFILE_ALL
@@ -27,6 +29,8 @@ config ARM
 	select CPU_PM if (SUSPEND || CPU_IDLE)
 	select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
 	select DMA_DIRECT_OPS if !MMU
+	select DMA_NONCOHERENT_OPS if !MMU
+	select DMA_NONCOHERENT_MMAP if !MMU
 	select EDAC_SUPPORT
 	select EDAC_ATOMIC_SCRUB
 	select GENERIC_ALLOCATOR
diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index f448a0663b10..a74ed6632982 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -12,6 +12,7 @@
 #include <linux/export.h>
 #include <linux/mm.h>
 #include <linux/dma-direct.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/scatterlist.h>
 
 #include <asm/cachetype.h>
@@ -26,18 +27,16 @@
  *   - MMU/MPU is off
  *   - cpu is v7m w/o cache support
  *   - device is coherent
- *  otherwise arm_nommu_dma_ops is used.
+ *  otherwise dma_noncoherent_ops is used.
  *
- *  arm_nommu_dma_ops rely on consistent DMA memory (please, refer to
+ *  dma_noncoherent_ops rely on consistent DMA memory (please, refer to
  *  [1] on how to declare such memory).
  *
  *  [1] Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
  */
 
-static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
-				 dma_addr_t *dma_handle, gfp_t gfp,
-				 unsigned long attrs)
-
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -65,9 +64,8 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
 	return ret;
 }
 
-static void arm_nommu_dma_free(struct device *dev, size_t size,
-			       void *cpu_addr, dma_addr_t dma_addr,
-			       unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t dma_addr, unsigned long attrs)
 {
 	if (attrs & DMA_ATTR_NON_CONSISTENT) {
 		dma_direct_free(dev, size, cpu_addr, dma_addr, attrs);
@@ -81,9 +79,9 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
 	return;
 }
 
-static int arm_nommu_dma_mmap(struct device *dev, struct vm_area_struct *vma,
-			      void *cpu_addr, dma_addr_t dma_addr, size_t size,
-			      unsigned long attrs)
+int arch_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+		void *cpu_addr, dma_addr_t dma_addr, size_t size,
+		unsigned long attrs)
 {
 	int ret;
 
@@ -93,9 +91,8 @@ static int arm_nommu_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 	return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size);
 }
 
-
-static void __dma_page_cpu_to_dev(phys_addr_t paddr, size_t size,
-				  enum dma_data_direction dir)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
 	dmac_map_area(__va(paddr), size, dir);
 
@@ -105,8 +102,8 @@ static void __dma_page_cpu_to_dev(phys_addr_t paddr, size_t size,
 		outer_clean_range(paddr, paddr + size);
 }
 
-static void __dma_page_dev_to_cpu(phys_addr_t paddr, size_t size,
-				  enum dma_data_direction dir)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
 	if (dir != DMA_TO_DEVICE) {
 		outer_inv_range(paddr, paddr + size);
@@ -114,110 +111,9 @@ static void __dma_page_dev_to_cpu(phys_addr_t paddr, size_t size,
 	}
 }
 
-static dma_addr_t arm_nommu_dma_map_page(struct device *dev, struct page *page,
-					 unsigned long offset, size_t size,
-					 enum dma_data_direction dir,
-					 unsigned long attrs)
-{
-	dma_addr_t handle = page_to_phys(page) + offset;
-
-	__dma_page_cpu_to_dev(handle, size, dir);
-
-	return handle;
-}
-
-static void arm_nommu_dma_unmap_page(struct device *dev, dma_addr_t handle,
-				     size_t size, enum dma_data_direction dir,
-				     unsigned long attrs)
-{
-	__dma_page_dev_to_cpu(handle, size, dir);
-}
-
-
-static int arm_nommu_dma_map_sg(struct device *dev, struct scatterlist *sgl,
-				int nents, enum dma_data_direction dir,
-				unsigned long attrs)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sgl, sg, nents, i) {
-		sg_dma_address(sg) = sg_phys(sg);
-		sg_dma_len(sg) = sg->length;
-		__dma_page_cpu_to_dev(sg_dma_address(sg), sg_dma_len(sg), dir);
-	}
-
-	return nents;
-}
-
-static void arm_nommu_dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
-				   int nents, enum dma_data_direction dir,
-				   unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sgl, sg, nents, i)
-		__dma_page_dev_to_cpu(sg_dma_address(sg), sg_dma_len(sg), dir);
-}
-
-static void arm_nommu_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t handle, size_t size, enum dma_data_direction dir)
-{
-	__dma_page_cpu_to_dev(handle, size, dir);
-}
-
-static void arm_nommu_dma_sync_single_for_cpu(struct device *dev,
-		dma_addr_t handle, size_t size, enum dma_data_direction dir)
-{
-	__dma_page_cpu_to_dev(handle, size, dir);
-}
-
-static void arm_nommu_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sgl,
-					     int nents, enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sgl, sg, nents, i)
-		__dma_page_cpu_to_dev(sg_dma_address(sg), sg_dma_len(sg), dir);
-}
-
-static void arm_nommu_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sgl,
-					  int nents, enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sgl, sg, nents, i)
-		__dma_page_dev_to_cpu(sg_dma_address(sg), sg_dma_len(sg), dir);
-}
-
-const struct dma_map_ops arm_nommu_dma_ops = {
-	.alloc			= arm_nommu_dma_alloc,
-	.free			= arm_nommu_dma_free,
-	.mmap			= arm_nommu_dma_mmap,
-	.map_page		= arm_nommu_dma_map_page,
-	.unmap_page		= arm_nommu_dma_unmap_page,
-	.map_sg			= arm_nommu_dma_map_sg,
-	.unmap_sg		= arm_nommu_dma_unmap_sg,
-	.sync_single_for_device	= arm_nommu_dma_sync_single_for_device,
-	.sync_single_for_cpu	= arm_nommu_dma_sync_single_for_cpu,
-	.sync_sg_for_device	= arm_nommu_dma_sync_sg_for_device,
-	.sync_sg_for_cpu	= arm_nommu_dma_sync_sg_for_cpu,
-};
-EXPORT_SYMBOL(arm_nommu_dma_ops);
-
-static const struct dma_map_ops *arm_nommu_get_dma_map_ops(bool coherent)
-{
-	return coherent ? &dma_direct_ops : &arm_nommu_dma_ops;
-}
-
 void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 			const struct iommu_ops *iommu, bool coherent)
 {
-	const struct dma_map_ops *dma_ops;
-
 	if (IS_ENABLED(CONFIG_CPU_V7M)) {
 		/*
 		 * Cache support for v7m is optional, so can be treated as
@@ -233,9 +129,10 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 		dev->archdata.dma_coherent = (get_cr() & CR_M) ? coherent : true;
 	}
 
-	dma_ops = arm_nommu_get_dma_map_ops(dev->archdata.dma_coherent);
-
-	set_dma_ops(dev, dma_ops);
+	if (dev->archdata.dma_coherent)
+		set_dma_ops(dev, &dma_direct_ops);
+	else
+		set_dma_ops(dev, &dma_noncoherent_ops);
 }
 
 void arch_teardown_dma_ops(struct device *dev)
-- 
2.17.0


From - Thu Nov 08 21:41:26 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 05/20] c6x: use generic dma_noncoherent_ops
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	sparclinux-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, nios2-dev-g9ZBwUv/Ih/yUk5EbOjzuce+I+R0W71w@public.gmane.org,
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To: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24172>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/c6x/Kconfig                   |   3 +
 arch/c6x/include/asm/Kbuild        |   1 +
 arch/c6x/include/asm/dma-mapping.h |  28 ------
 arch/c6x/include/asm/setup.h       |   2 +
 arch/c6x/kernel/Makefile           |   2 +-
 arch/c6x/kernel/dma.c              | 138 -----------------------------
 arch/c6x/mm/dma-coherent.c         |  40 ++++++++-
 7 files changed, 44 insertions(+), 170 deletions(-)
 delete mode 100644 arch/c6x/include/asm/dma-mapping.h
 delete mode 100644 arch/c6x/kernel/dma.c

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 8c088b96e372..bf59855628ac 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -6,7 +6,10 @@
 
 config C6X
 	def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select CLKDEV_LOOKUP
+	select DMA_NONCOHERENT_OPS
 	select GENERIC_ATOMIC64
 	select GENERIC_IRQ_SHOW
 	select HAVE_ARCH_TRACEHOOK
diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
index fd4c840de837..434600e47662 100644
--- a/arch/c6x/include/asm/Kbuild
+++ b/arch/c6x/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
deleted file mode 100644
index 05daf1038111..000000000000
--- a/arch/c6x/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- *  Port on Texas Instruments TMS320C6x architecture
- *
- *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
- *  Author: Aurelien Jacquiot <aurelien.jacquiot-l0cyMroinI0@public.gmane.org>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
- */
-#ifndef _ASM_C6X_DMA_MAPPING_H
-#define _ASM_C6X_DMA_MAPPING_H
-
-extern const struct dma_map_ops c6x_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &c6x_dma_ops;
-}
-
-extern void coherent_mem_init(u32 start, u32 size);
-void *c6x_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
-		gfp_t gfp, unsigned long attrs);
-void c6x_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t dma_handle, unsigned long attrs);
-
-#endif	/* _ASM_C6X_DMA_MAPPING_H */
diff --git a/arch/c6x/include/asm/setup.h b/arch/c6x/include/asm/setup.h
index 852afb209afb..350f34debb19 100644
--- a/arch/c6x/include/asm/setup.h
+++ b/arch/c6x/include/asm/setup.h
@@ -28,5 +28,7 @@ extern unsigned char c6x_fuse_mac[6];
 extern void machine_init(unsigned long dt_ptr);
 extern void time_init(void);
 
+extern void coherent_mem_init(u32 start, u32 size);
+
 #endif /* !__ASSEMBLY__ */
 #endif /* _ASM_C6X_SETUP_H */
diff --git a/arch/c6x/kernel/Makefile b/arch/c6x/kernel/Makefile
index 02f340d7b8fe..fbe74174de87 100644
--- a/arch/c6x/kernel/Makefile
+++ b/arch/c6x/kernel/Makefile
@@ -8,6 +8,6 @@ extra-y := head.o vmlinux.lds
 obj-y := process.o traps.o irq.o signal.o ptrace.o
 obj-y += setup.o sys_c6x.o time.o devicetree.o
 obj-y += switch_to.o entry.o vectors.o c6x_ksyms.o
-obj-y += soc.o dma.o
+obj-y += soc.o
 
 obj-$(CONFIG_MODULES)           += module.o
diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
deleted file mode 100644
index 31e1a9ec3a9c..000000000000
--- a/arch/c6x/kernel/dma.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- *  Copyright (C) 2011 Texas Instruments Incorporated
- *  Author: Mark Salter <msalter-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- */
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <linux/mm.h>
-#include <linux/mm_types.h>
-#include <linux/scatterlist.h>
-
-#include <asm/cacheflush.h>
-
-static void c6x_dma_sync(dma_addr_t handle, size_t size,
-			 enum dma_data_direction dir)
-{
-	unsigned long paddr = handle;
-
-	BUG_ON(!valid_dma_direction(dir));
-
-	switch (dir) {
-	case DMA_FROM_DEVICE:
-		L2_cache_block_invalidate(paddr, paddr + size);
-		break;
-	case DMA_TO_DEVICE:
-		L2_cache_block_writeback(paddr, paddr + size);
-		break;
-	case DMA_BIDIRECTIONAL:
-		L2_cache_block_writeback_invalidate(paddr, paddr + size);
-		break;
-	default:
-		break;
-	}
-}
-
-static dma_addr_t c6x_dma_map_page(struct device *dev, struct page *page,
-		unsigned long offset, size_t size, enum dma_data_direction dir,
-		unsigned long attrs)
-{
-	dma_addr_t handle = virt_to_phys(page_address(page) + offset);
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		c6x_dma_sync(handle, size, dir);
-
-	return handle;
-}
-
-static void c6x_dma_unmap_page(struct device *dev, dma_addr_t handle,
-		size_t size, enum dma_data_direction dir, unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		c6x_dma_sync(handle, size, dir);
-}
-
-static int c6x_dma_map_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction dir, unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sglist, sg, nents, i) {
-		sg->dma_address = sg_phys(sg);
-		if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-			c6x_dma_sync(sg->dma_address, sg->length, dir);
-	}
-
-	return nents;
-}
-
-static void c6x_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
-		  int nents, enum dma_data_direction dir, unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int i;
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return;
-
-	for_each_sg(sglist, sg, nents, i)
-		c6x_dma_sync(sg_dma_address(sg), sg->length, dir);
-}
-
-static void c6x_dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
-		size_t size, enum dma_data_direction dir)
-{
-	c6x_dma_sync(handle, size, dir);
-
-}
-
-static void c6x_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t handle, size_t size, enum dma_data_direction dir)
-{
-	c6x_dma_sync(handle, size, dir);
-
-}
-
-static void c6x_dma_sync_sg_for_cpu(struct device *dev,
-		struct scatterlist *sglist, int nents,
-		enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sglist, sg, nents, i)
-		c6x_dma_sync_single_for_cpu(dev, sg_dma_address(sg),
-					sg->length, dir);
-
-}
-
-static void c6x_dma_sync_sg_for_device(struct device *dev,
-		struct scatterlist *sglist, int nents,
-		enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sglist, sg, nents, i)
-		c6x_dma_sync_single_for_device(dev, sg_dma_address(sg),
-					   sg->length, dir);
-
-}
-
-const struct dma_map_ops c6x_dma_ops = {
-	.alloc			= c6x_dma_alloc,
-	.free			= c6x_dma_free,
-	.map_page		= c6x_dma_map_page,
-	.unmap_page		= c6x_dma_unmap_page,
-	.map_sg			= c6x_dma_map_sg,
-	.unmap_sg		= c6x_dma_unmap_sg,
-	.sync_single_for_device	= c6x_dma_sync_single_for_device,
-	.sync_single_for_cpu	= c6x_dma_sync_single_for_cpu,
-	.sync_sg_for_device	= c6x_dma_sync_sg_for_device,
-	.sync_sg_for_cpu	= c6x_dma_sync_sg_for_cpu,
-};
-EXPORT_SYMBOL(c6x_dma_ops);
diff --git a/arch/c6x/mm/dma-coherent.c b/arch/c6x/mm/dma-coherent.c
index 95e38ad27c69..d0a8e0c4b27e 100644
--- a/arch/c6x/mm/dma-coherent.c
+++ b/arch/c6x/mm/dma-coherent.c
@@ -19,10 +19,12 @@
 #include <linux/bitops.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/memblock.h>
 
+#include <asm/cacheflush.h>
 #include <asm/page.h>
+#include <asm/setup.h>
 
 /*
  * DMA coherent memory management, can be redefined using the memdma=
@@ -73,7 +75,7 @@ static void __free_dma_pages(u32 addr, int order)
  * Allocate DMA coherent memory space and return both the kernel
  * virtual and DMA address for that space.
  */
-void *c6x_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 		gfp_t gfp, unsigned long attrs)
 {
 	u32 paddr;
@@ -98,7 +100,7 @@ void *c6x_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 /*
  * Free DMA coherent memory as defined by the above mapping.
  */
-void c6x_dma_free(struct device *dev, size_t size, void *vaddr,
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
 	int order;
@@ -139,3 +141,35 @@ void __init coherent_mem_init(phys_addr_t start, u32 size)
 	dma_bitmap = phys_to_virt(bitmap_phys);
 	memset(dma_bitmap, 0, dma_pages * PAGE_SIZE);
 }
+
+static void c6x_dma_sync(struct device *dev, phys_addr_t paddr, size_t size,
+		enum dma_data_direction dir)
+{
+	BUG_ON(!valid_dma_direction(dir));
+
+	switch (dir) {
+	case DMA_FROM_DEVICE:
+		L2_cache_block_invalidate(paddr, paddr + size);
+		break;
+	case DMA_TO_DEVICE:
+		L2_cache_block_writeback(paddr, paddr + size);
+		break;
+	case DMA_BIDIRECTIONAL:
+		L2_cache_block_writeback_invalidate(paddr, paddr + size);
+		break;
+	default:
+		break;
+	}
+}
+
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
+{
+	return c6x_dma_sync(dev, paddr, size, dir);
+}
+
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
+{
+	return c6x_dma_sync(dev, paddr, size, dir);
+}
-- 
2.17.0


From - Thu Nov 08 21:41:26 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 06/20] hexagon: use generic dma_noncoherent_ops
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Xref: news.gmane.org gmane.linux.kernel.iommu:24173 gmane.linux.kernel.cross-arch:44017 gmane.linux.ports.parisc:28600 gmane.linux.ports.sh.devel:57006 gmane.linux.ports.hexagon:1703 gmane.linux.kernel:2764207 gmane.linux.ports.alpha:5028 gmane.linux.ports.sparc:27855 gmane.linux.kernel.arc:3869 gmane.linux.ports.arm.kernel:649156
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24173>

Switch to the generic noncoherent direct mapping implementation.

This removes the previous sync_single_for_cpu implementation, which looks
bogus given that no syncing is happening in the similar but more
important unmap_single case.

This adds the previously missing sync_sg_for_device implementation that
matches the pre-existing sync_single_for_device implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/hexagon/Kconfig                   |   2 +
 arch/hexagon/include/asm/Kbuild        |   1 +
 arch/hexagon/include/asm/dma-mapping.h |  40 -------
 arch/hexagon/kernel/dma.c              | 143 ++-----------------------
 4 files changed, 11 insertions(+), 175 deletions(-)
 delete mode 100644 arch/hexagon/include/asm/dma-mapping.h

diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 37adb2003033..bcbdcb32935c 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -4,6 +4,7 @@ comment "Linux Kernel Configuration for Hexagon"
 
 config HEXAGON
 	def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select HAVE_OPROFILE
 	# Other pending projects/to-do items.
 	# select HAVE_REGS_AND_STACK_ACCESS_API
@@ -28,6 +29,7 @@ config HEXAGON
 	select GENERIC_CLOCKEVENTS_BROADCAST
 	select MODULES_USE_ELF_RELA
 	select GENERIC_CPU_DEVICES
+	select DMA_NONCOHERENT_OPS
 	---help---
 	  Qualcomm Hexagon is a processor architecture designed for high
 	  performance and low power across a wide variety of applications.
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index e9743f689fb8..843a8086e980 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += bugs.h
 generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += extable.h
 generic-y += fb.h
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
deleted file mode 100644
index 263f6acbfb0f..000000000000
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * DMA operations for the Hexagon architecture
- *
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- */
-
-#ifndef _ASM_DMA_MAPPING_H
-#define _ASM_DMA_MAPPING_H
-
-#include <linux/types.h>
-#include <linux/cache.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
-#include <asm/io.h>
-
-struct device;
-
-extern const struct dma_map_ops *dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return dma_ops;
-}
-
-#endif
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index 77459df34e2e..ffc4ae8e126f 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -18,32 +18,19 @@
  * 02110-1301, USA.
  */
 
-#include <linux/dma-mapping.h>
-#include <linux/dma-direct.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/bootmem.h>
 #include <linux/genalloc.h>
-#include <asm/dma-mapping.h>
 #include <linux/module.h>
 #include <asm/page.h>
 
-#define HEXAGON_MAPPING_ERROR	0
-
-const struct dma_map_ops *dma_ops;
-EXPORT_SYMBOL(dma_ops);
-
-static inline void *dma_addr_to_virt(dma_addr_t dma_addr)
-{
-	return phys_to_virt((unsigned long) dma_addr);
-}
-
 static struct gen_pool *coherent_pool;
 
 
 /* Allocates from a pool of uncached memory that was reserved at boot time */
 
-static void *hexagon_dma_alloc_coherent(struct device *dev, size_t size,
-				 dma_addr_t *dma_addr, gfp_t flag,
-				 unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_addr,
+		gfp_t flag, unsigned long attrs)
 {
 	void *ret;
 
@@ -75,58 +62,17 @@ static void *hexagon_dma_alloc_coherent(struct device *dev, size_t size,
 	return ret;
 }
 
-static void hexagon_free_coherent(struct device *dev, size_t size, void *vaddr,
-				  dma_addr_t dma_addr, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_addr, unsigned long attrs)
 {
 	gen_pool_free(coherent_pool, (unsigned long) vaddr, size);
 }
 
-static int check_addr(const char *name, struct device *hwdev,
-		      dma_addr_t bus, size_t size)
-{
-	if (hwdev && hwdev->dma_mask && !dma_capable(hwdev, bus, size)) {
-		if (*hwdev->dma_mask >= DMA_BIT_MASK(32))
-			printk(KERN_ERR
-				"%s: overflow %Lx+%zu of device mask %Lx\n",
-				name, (long long)bus, size,
-				(long long)*hwdev->dma_mask);
-		return 0;
-	}
-	return 1;
-}
-
-static int hexagon_map_sg(struct device *hwdev, struct scatterlist *sg,
-			  int nents, enum dma_data_direction dir,
-			  unsigned long attrs)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	struct scatterlist *s;
-	int i;
-
-	WARN_ON(nents == 0 || sg[0].length == 0);
-
-	for_each_sg(sg, s, nents, i) {
-		s->dma_address = sg_phys(s);
-		if (!check_addr("map_sg", hwdev, s->dma_address, s->length))
-			return 0;
-
-		s->dma_length = s->length;
+	void *addr = phys_to_virt(paddr);
 
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		flush_dcache_range(dma_addr_to_virt(s->dma_address),
-				   dma_addr_to_virt(s->dma_address + s->length));
-	}
-
-	return nents;
-}
-
-/*
- * address is virtual
- */
-static inline void dma_sync(void *addr, size_t size,
-			    enum dma_data_direction dir)
-{
 	switch (dir) {
 	case DMA_TO_DEVICE:
 		hexagon_clean_dcache_range((unsigned long) addr,
@@ -144,76 +90,3 @@ static inline void dma_sync(void *addr, size_t size,
 		BUG();
 	}
 }
-
-/**
- * hexagon_map_page() - maps an address for device DMA
- * @dev:	pointer to DMA device
- * @page:	pointer to page struct of DMA memory
- * @offset:	offset within page
- * @size:	size of memory to map
- * @dir:	transfer direction
- * @attrs:	pointer to DMA attrs (not used)
- *
- * Called to map a memory address to a DMA address prior
- * to accesses to/from device.
- *
- * We don't particularly have many hoops to jump through
- * so far.  Straight translation between phys and virtual.
- *
- * DMA is not cache coherent so sync is necessary; this
- * seems to be a convenient place to do it.
- *
- */
-static dma_addr_t hexagon_map_page(struct device *dev, struct page *page,
-				   unsigned long offset, size_t size,
-				   enum dma_data_direction dir,
-				   unsigned long attrs)
-{
-	dma_addr_t bus = page_to_phys(page) + offset;
-	WARN_ON(size == 0);
-
-	if (!check_addr("map_single", dev, bus, size))
-		return HEXAGON_MAPPING_ERROR;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		dma_sync(dma_addr_to_virt(bus), size, dir);
-
-	return bus;
-}
-
-static void hexagon_sync_single_for_cpu(struct device *dev,
-					dma_addr_t dma_handle, size_t size,
-					enum dma_data_direction dir)
-{
-	dma_sync(dma_addr_to_virt(dma_handle), size, dir);
-}
-
-static void hexagon_sync_single_for_device(struct device *dev,
-					dma_addr_t dma_handle, size_t size,
-					enum dma_data_direction dir)
-{
-	dma_sync(dma_addr_to_virt(dma_handle), size, dir);
-}
-
-static int hexagon_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return dma_addr == HEXAGON_MAPPING_ERROR;
-}
-
-const struct dma_map_ops hexagon_dma_ops = {
-	.alloc		= hexagon_dma_alloc_coherent,
-	.free		= hexagon_free_coherent,
-	.map_sg		= hexagon_map_sg,
-	.map_page	= hexagon_map_page,
-	.sync_single_for_cpu = hexagon_sync_single_for_cpu,
-	.sync_single_for_device = hexagon_sync_single_for_device,
-	.mapping_error	= hexagon_mapping_error,
-};
-
-void __init hexagon_dma_init(void)
-{
-	if (dma_ops)
-		return;
-
-	dma_ops = &hexagon_dma_ops;
-}
-- 
2.17.0


From - Thu Nov 08 21:41:26 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 07/20] m68k: use generic dma_noncoherent_ops
Date: Fri, 11 May 2018 09:59:32 +0200
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Xref: news.gmane.org gmane.linux.kernel.iommu:24174 gmane.linux.kernel.cross-arch:44018 gmane.linux.ports.parisc:28601 gmane.linux.ports.sh.devel:57007 gmane.linux.ports.hexagon:1704 gmane.linux.kernel:2764208 gmane.linux.ports.alpha:5029 gmane.linux.ports.sparc:27856 gmane.linux.kernel.arc:3870 gmane.linux.ports.arm.kernel:649157
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24174>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/m68k/Kconfig                   |  2 +
 arch/m68k/include/asm/Kbuild        |  1 +
 arch/m68k/include/asm/dma-mapping.h | 12 -----
 arch/m68k/kernel/dma.c              | 68 ++++-------------------------
 4 files changed, 11 insertions(+), 72 deletions(-)
 delete mode 100644 arch/m68k/include/asm/dma-mapping.h

diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 785612b576f7..3f61327da2d5 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -2,6 +2,7 @@
 config M68K
 	bool
 	default y
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
 	select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
 	select HAVE_IDE
@@ -24,6 +25,7 @@ config M68K
 	select MODULES_USE_ELF_RELA
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
+	select DMA_NONCOHERENT_OPS if HAS_DMA
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
index 88a9d27df1ac..a853c00f1374 100644
--- a/arch/m68k/include/asm/Kbuild
+++ b/arch/m68k/include/asm/Kbuild
@@ -1,5 +1,6 @@
 generic-y += barrier.h
 generic-y += device.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
deleted file mode 100644
index e3722ed04fbb..000000000000
--- a/arch/m68k/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _M68K_DMA_MAPPING_H
-#define _M68K_DMA_MAPPING_H
-
-extern const struct dma_map_ops m68k_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-        return &m68k_dma_ops;
-}
-
-#endif  /* _M68K_DMA_MAPPING_H */
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index c01b9b8f97bf..3d561c577d35 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -6,7 +6,7 @@
 
 #undef DEBUG
 
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/scatterlist.h>
@@ -18,7 +18,7 @@
 
 #if defined(CONFIG_MMU) && !defined(CONFIG_COLDFIRE)
 
-static void *m68k_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 		gfp_t flag, unsigned long attrs)
 {
 	struct page *page, **map;
@@ -61,7 +61,7 @@ static void *m68k_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 	return addr;
 }
 
-static void m68k_dma_free(struct device *dev, size_t size, void *addr,
+void arch_dma_free(struct device *dev, size_t size, void *addr,
 		dma_addr_t handle, unsigned long attrs)
 {
 	pr_debug("dma_free_coherent: %p, %x\n", addr, handle);
@@ -72,8 +72,8 @@ static void m68k_dma_free(struct device *dev, size_t size, void *addr,
 
 #include <asm/cacheflush.h>
 
-static void *m68k_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -88,7 +88,7 @@ static void *m68k_dma_alloc(struct device *dev, size_t size,
 	return ret;
 }
 
-static void m68k_dma_free(struct device *dev, size_t size, void *vaddr,
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
 	free_pages((unsigned long)vaddr, get_order(size));
@@ -96,8 +96,8 @@ static void m68k_dma_free(struct device *dev, size_t size, void *vaddr,
 
 #endif /* CONFIG_MMU && !CONFIG_COLDFIRE */
 
-static void m68k_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t handle, size_t size, enum dma_data_direction dir)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t handle,
+		size_t size, enum dma_data_direction dir)
 {
 	switch (dir) {
 	case DMA_BIDIRECTIONAL:
@@ -113,55 +113,3 @@ static void m68k_dma_sync_single_for_device(struct device *dev,
 		break;
 	}
 }
-
-static void m68k_dma_sync_sg_for_device(struct device *dev,
-		struct scatterlist *sglist, int nents, enum dma_data_direction dir)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nents, i) {
-		dma_sync_single_for_device(dev, sg->dma_address, sg->length,
-					   dir);
-	}
-}
-
-static dma_addr_t m68k_dma_map_page(struct device *dev, struct page *page,
-		unsigned long offset, size_t size, enum dma_data_direction dir,
-		unsigned long attrs)
-{
-	dma_addr_t handle = page_to_phys(page) + offset;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		dma_sync_single_for_device(dev, handle, size, dir);
-
-	return handle;
-}
-
-static int m68k_dma_map_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction dir, unsigned long attrs)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nents, i) {
-		sg->dma_address = sg_phys(sg);
-
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		dma_sync_single_for_device(dev, sg->dma_address, sg->length,
-					   dir);
-	}
-	return nents;
-}
-
-const struct dma_map_ops m68k_dma_ops = {
-	.alloc			= m68k_dma_alloc,
-	.free			= m68k_dma_free,
-	.map_page		= m68k_dma_map_page,
-	.map_sg			= m68k_dma_map_sg,
-	.sync_single_for_device	= m68k_dma_sync_single_for_device,
-	.sync_sg_for_device	= m68k_dma_sync_sg_for_device,
-};
-EXPORT_SYMBOL(m68k_dma_ops);
-- 
2.17.0


From - Thu Nov 08 21:41:26 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 08/20] microblaze: use generic dma_noncoherent_ops
Date: Fri, 11 May 2018 09:59:33 +0200
Lines: 328
Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.kernel.iommu:24175 gmane.linux.kernel.cross-arch:44019 gmane.linux.ports.parisc:28602 gmane.linux.ports.sh.devel:57008 gmane.linux.ports.hexagon:1705 gmane.linux.kernel:2764209 gmane.linux.ports.alpha:5030 gmane.linux.ports.sparc:27857 gmane.linux.kernel.arc:3871 gmane.linux.ports.arm.kernel:649158
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24175>

Switch to the generic noncoherent direct mapping implementation.

This removes the direction-based optimizations in
sync_{single,sg}_for_{cpu,device} which were marked untestested and
do not match the usually very well tested {un,}map_{single,sg}
implementations.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/microblaze/Kconfig                   |   4 +
 arch/microblaze/include/asm/Kbuild        |   1 +
 arch/microblaze/include/asm/dma-mapping.h |  28 -----
 arch/microblaze/include/asm/pgtable.h     |   2 -
 arch/microblaze/kernel/dma.c              | 144 ++--------------------
 arch/microblaze/mm/consistent.c           |   9 +-
 6 files changed, 22 insertions(+), 166 deletions(-)
 delete mode 100644 arch/microblaze/include/asm/dma-mapping.h

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index d14782100088..848e31a86ba5 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -1,6 +1,8 @@
 config MICROBLAZE
 	def_bool y
 	select ARCH_HAS_GCOV_PROFILE_ALL
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
 	select ARCH_WANT_IPC_PARSE_VERSION
@@ -8,6 +10,8 @@ config MICROBLAZE
 	select TIMER_OF
 	select CLONE_BACKWARDS3
 	select COMMON_CLK
+	select DMA_NONCOHERENT_OPS
+	select DMA_NONCOHERENT_MMAP
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CPU_DEVICES
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
index 3c80a5a308ed..8d3e71f43a3e 100644
--- a/arch/microblaze/include/asm/Kbuild
+++ b/arch/microblaze/include/asm/Kbuild
@@ -4,6 +4,7 @@ generic-y += bug.h
 generic-y += bugs.h
 generic-y += device.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
deleted file mode 100644
index add50c1373bf..000000000000
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Implements the generic device dma API for microblaze and the pci
- *
- * Copyright (C) 2009-2010 Michal Simek <monstr-pSz03upnqPeHXe+LvDLADg@public.gmane.org>
- * Copyright (C) 2009-2010 PetaLogix
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * This file is base on powerpc and x86 dma-mapping.h versions
- * Copyright (C) 2004 IBM
- */
-
-#ifndef _ASM_MICROBLAZE_DMA_MAPPING_H
-#define _ASM_MICROBLAZE_DMA_MAPPING_H
-
-/*
- * Available generic sets of operations
- */
-extern const struct dma_map_ops dma_nommu_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &dma_nommu_ops;
-}
-
-#endif	/* _ASM_MICROBLAZE_DMA_MAPPING_H */
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index db8b1fa83452..8a2e654b709f 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -553,8 +553,6 @@ void __init *early_get_page(void);
 
 extern unsigned long ioremap_bot, ioremap_base;
 
-void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle);
-void consistent_free(size_t size, void *vaddr);
 void consistent_sync(void *vaddr, size_t size, int direction);
 void consistent_sync_page(struct page *page, unsigned long offset,
 	size_t size, int direction);
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 3145e7dc8ab1..71032cf64669 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -8,29 +8,15 @@
  */
 
 #include <linux/device.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/gfp.h>
 #include <linux/dma-debug.h>
 #include <linux/export.h>
 #include <linux/bug.h>
 #include <asm/cacheflush.h>
 
-static void *dma_nommu_alloc_coherent(struct device *dev, size_t size,
-				       dma_addr_t *dma_handle, gfp_t flag,
-				       unsigned long attrs)
-{
-	return consistent_alloc(flag, size, dma_handle);
-}
-
-static void dma_nommu_free_coherent(struct device *dev, size_t size,
-				     void *vaddr, dma_addr_t dma_handle,
-				     unsigned long attrs)
-{
-	consistent_free(size, vaddr);
-}
-
-static inline void __dma_sync(unsigned long paddr,
-			      size_t size, enum dma_data_direction direction)
+static void __dma_sync(struct device *dev, phys_addr_t paddr, size_t size,
+		enum dma_data_direction direction)
 {
 	switch (direction) {
 	case DMA_TO_DEVICE:
@@ -45,113 +31,21 @@ static inline void __dma_sync(unsigned long paddr,
 	}
 }
 
-static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl,
-			     int nents, enum dma_data_direction direction,
-			     unsigned long attrs)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	struct scatterlist *sg;
-	int i;
-
-	/* FIXME this part of code is untested */
-	for_each_sg(sgl, sg, nents, i) {
-		sg->dma_address = sg_phys(sg);
-
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		__dma_sync(sg_phys(sg), sg->length, direction);
-	}
-
-	return nents;
-}
-
-static inline dma_addr_t dma_nommu_map_page(struct device *dev,
-					     struct page *page,
-					     unsigned long offset,
-					     size_t size,
-					     enum dma_data_direction direction,
-					     unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		__dma_sync(page_to_phys(page) + offset, size, direction);
-	return page_to_phys(page) + offset;
+	__dma_sync(dev, paddr, size, dir);
 }
 
-static inline void dma_nommu_unmap_page(struct device *dev,
-					 dma_addr_t dma_address,
-					 size_t size,
-					 enum dma_data_direction direction,
-					 unsigned long attrs)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-/* There is not necessary to do cache cleanup
- *
- * phys_to_virt is here because in __dma_sync_page is __virt_to_phys and
- * dma_address is physical address
- */
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		__dma_sync(dma_address, size, direction);
+	__dma_sync(dev, paddr, size, dir);
 }
 
-static inline void
-dma_nommu_sync_single_for_cpu(struct device *dev,
-			       dma_addr_t dma_handle, size_t size,
-			       enum dma_data_direction direction)
-{
-	/*
-	 * It's pointless to flush the cache as the memory segment
-	 * is given to the CPU
-	 */
-
-	if (direction == DMA_FROM_DEVICE)
-		__dma_sync(dma_handle, size, direction);
-}
-
-static inline void
-dma_nommu_sync_single_for_device(struct device *dev,
-				  dma_addr_t dma_handle, size_t size,
-				  enum dma_data_direction direction)
-{
-	/*
-	 * It's pointless to invalidate the cache if the device isn't
-	 * supposed to write to the relevant region
-	 */
-
-	if (direction == DMA_TO_DEVICE)
-		__dma_sync(dma_handle, size, direction);
-}
-
-static inline void
-dma_nommu_sync_sg_for_cpu(struct device *dev,
-			   struct scatterlist *sgl, int nents,
-			   enum dma_data_direction direction)
-{
-	struct scatterlist *sg;
-	int i;
-
-	/* FIXME this part of code is untested */
-	if (direction == DMA_FROM_DEVICE)
-		for_each_sg(sgl, sg, nents, i)
-			__dma_sync(sg->dma_address, sg->length, direction);
-}
-
-static inline void
-dma_nommu_sync_sg_for_device(struct device *dev,
-			      struct scatterlist *sgl, int nents,
-			      enum dma_data_direction direction)
-{
-	struct scatterlist *sg;
-	int i;
-
-	/* FIXME this part of code is untested */
-	if (direction == DMA_TO_DEVICE)
-		for_each_sg(sgl, sg, nents, i)
-			__dma_sync(sg->dma_address, sg->length, direction);
-}
-
-static
-int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
-			     void *cpu_addr, dma_addr_t handle, size_t size,
-			     unsigned long attrs)
+int arch_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+		void *cpu_addr, dma_addr_t handle, size_t size,
+		unsigned long attrs)
 {
 #ifdef CONFIG_MMU
 	unsigned long user_count = vma_pages(vma);
@@ -170,17 +64,3 @@ int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 	return -ENXIO;
 #endif
 }
-
-const struct dma_map_ops dma_nommu_ops = {
-	.alloc			= dma_nommu_alloc_coherent,
-	.free			= dma_nommu_free_coherent,
-	.mmap			= dma_nommu_mmap_coherent,
-	.map_sg			= dma_nommu_map_sg,
-	.map_page		= dma_nommu_map_page,
-	.unmap_page		= dma_nommu_unmap_page,
-	.sync_single_for_cpu	= dma_nommu_sync_single_for_cpu,
-	.sync_single_for_device	= dma_nommu_sync_single_for_device,
-	.sync_sg_for_cpu	= dma_nommu_sync_sg_for_cpu,
-	.sync_sg_for_device	= dma_nommu_sync_sg_for_device,
-};
-EXPORT_SYMBOL(dma_nommu_ops);
diff --git a/arch/microblaze/mm/consistent.c b/arch/microblaze/mm/consistent.c
index b06c3a7faf20..b9a9c8c3397b 100644
--- a/arch/microblaze/mm/consistent.c
+++ b/arch/microblaze/mm/consistent.c
@@ -33,6 +33,7 @@
 #include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/gfp.h>
+#include <linux/dma-noncoherent.h>
 
 #include <asm/pgalloc.h>
 #include <linux/io.h>
@@ -59,7 +60,8 @@
  * uncached region.  This will no doubt cause big problems if memory allocated
  * here is not also freed properly. -- JW
  */
-void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	unsigned long order, vaddr;
 	void *ret;
@@ -154,7 +156,6 @@ void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle)
 
 	return ret;
 }
-EXPORT_SYMBOL(consistent_alloc);
 
 #ifdef CONFIG_MMU
 static pte_t *consistent_virt_to_pte(void *vaddr)
@@ -178,7 +179,8 @@ unsigned long consistent_virt_to_pfn(void *vaddr)
 /*
  * free page(s) as defined by the above mapping.
  */
-void consistent_free(size_t size, void *vaddr)
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_addr, unsigned long attrs)
 {
 	struct page *page;
 
@@ -218,7 +220,6 @@ void consistent_free(size_t size, void *vaddr)
 	flush_tlb_all();
 #endif
 }
-EXPORT_SYMBOL(consistent_free);
 
 /*
  * make an area consistent.
-- 
2.17.0


From - Thu Nov 08 21:41:26 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 09/20] microblaze: remove the consistent_sync and
	consistent_sync_page
Date: Fri, 11 May 2018 09:59:34 +0200
Lines: 78
Approved: news@gmane.org
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Both unused.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/microblaze/include/asm/pgtable.h |  3 --
 arch/microblaze/mm/consistent.c       | 45 ---------------------------
 2 files changed, 48 deletions(-)

diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index 8a2e654b709f..7b650ab14fa0 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -553,9 +553,6 @@ void __init *early_get_page(void);
 
 extern unsigned long ioremap_bot, ioremap_base;
 
-void consistent_sync(void *vaddr, size_t size, int direction);
-void consistent_sync_page(struct page *page, unsigned long offset,
-	size_t size, int direction);
 unsigned long consistent_virt_to_pfn(void *vaddr);
 
 void setup_memory(void);
diff --git a/arch/microblaze/mm/consistent.c b/arch/microblaze/mm/consistent.c
index b9a9c8c3397b..c9a278ac795a 100644
--- a/arch/microblaze/mm/consistent.c
+++ b/arch/microblaze/mm/consistent.c
@@ -220,48 +220,3 @@ void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 	flush_tlb_all();
 #endif
 }
-
-/*
- * make an area consistent.
- */
-void consistent_sync(void *vaddr, size_t size, int direction)
-{
-	unsigned long start;
-	unsigned long end;
-
-	start = (unsigned long)vaddr;
-
-	/* Convert start address back down to unshadowed memory region */
-#ifdef CONFIG_XILINX_UNCACHED_SHADOW
-	start &= ~UNCACHED_SHADOW_MASK;
-#endif
-	end = start + size;
-
-	switch (direction) {
-	case PCI_DMA_NONE:
-		BUG();
-	case PCI_DMA_FROMDEVICE:	/* invalidate only */
-		invalidate_dcache_range(start, end);
-		break;
-	case PCI_DMA_TODEVICE:		/* writeback only */
-		flush_dcache_range(start, end);
-		break;
-	case PCI_DMA_BIDIRECTIONAL:	/* writeback and invalidate */
-		flush_dcache_range(start, end);
-		break;
-	}
-}
-EXPORT_SYMBOL(consistent_sync);
-
-/*
- * consistent_sync_page makes memory consistent. identical
- * to consistent_sync, but takes a struct page instead of a
- * virtual address
- */
-void consistent_sync_page(struct page *page, unsigned long offset,
-	size_t size, int direction)
-{
-	unsigned long start = (unsigned long)page_address(page) + offset;
-	consistent_sync((void *)start, size, direction);
-}
-EXPORT_SYMBOL(consistent_sync_page);
-- 
2.17.0


From - Thu Nov 08 21:41:26 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 10/20] nds32: use generic dma_noncoherent_ops
Date: Fri, 11 May 2018 09:59:35 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24177>

Switch to the generic noncoherent direct mapping implementation.

This makes sure the cache_sync routines is called in the unmap_sg
case, to match the unmap_single and sync_{single,sg}_to_cpu cases.

Note that this now always uses page_address, as previously done
in the non-sg cache sync routines.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/nds32/Kconfig                   |   3 +
 arch/nds32/include/asm/Kbuild        |   1 +
 arch/nds32/include/asm/dma-mapping.h |  14 ---
 arch/nds32/kernel/dma.c              | 182 ++++++---------------------
 4 files changed, 39 insertions(+), 161 deletions(-)
 delete mode 100644 arch/nds32/include/asm/dma-mapping.h

diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index 249f38d3388f..67d0ac0a989c 100644
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -5,10 +5,13 @@
 
 config NDS32
         def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_WANT_FRAME_POINTERS if FTRACE
 	select CLKSRC_MMIO
 	select CLONE_BACKWARDS
 	select COMMON_CLK
+	select DMA_NONCOHERENT_OPS
 	select GENERIC_ATOMIC64
 	select GENERIC_CPU_DEVICES
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/nds32/include/asm/Kbuild b/arch/nds32/include/asm/Kbuild
index 06bdf8167f5a..b3e951f805f8 100644
--- a/arch/nds32/include/asm/Kbuild
+++ b/arch/nds32/include/asm/Kbuild
@@ -13,6 +13,7 @@ generic-y += cputime.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += errno.h
 generic-y += exec.h
diff --git a/arch/nds32/include/asm/dma-mapping.h b/arch/nds32/include/asm/dma-mapping.h
deleted file mode 100644
index 2dd47d245c25..000000000000
--- a/arch/nds32/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,14 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef ASMNDS32_DMA_MAPPING_H
-#define ASMNDS32_DMA_MAPPING_H
-
-extern struct dma_map_ops nds32_dma_ops;
-
-static inline struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &nds32_dma_ops;
-}
-
-#endif
diff --git a/arch/nds32/kernel/dma.c b/arch/nds32/kernel/dma.c
index d291800fc621..48018275e7f4 100644
--- a/arch/nds32/kernel/dma.c
+++ b/arch/nds32/kernel/dma.c
@@ -3,17 +3,14 @@
 
 #include <linux/types.h>
 #include <linux/mm.h>
-#include <linux/export.h>
 #include <linux/string.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/io.h>
 #include <linux/cache.h>
 #include <linux/highmem.h>
 #include <linux/slab.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
-#include <asm/dma-mapping.h>
 #include <asm/proc-fns.h>
 
 /*
@@ -22,11 +19,6 @@
 static pte_t *consistent_pte;
 static DEFINE_RAW_SPINLOCK(consistent_lock);
 
-enum master_type {
-	FOR_CPU = 0,
-	FOR_DEVICE = 1,
-};
-
 /*
  * VM region handling support.
  *
@@ -124,10 +116,8 @@ static struct arch_vm_region *vm_region_find(struct arch_vm_region *head,
 	return c;
 }
 
-/* FIXME: attrs is not used. */
-static void *nds32_dma_alloc_coherent(struct device *dev, size_t size,
-				      dma_addr_t * handle, gfp_t gfp,
-				      unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	struct page *page;
 	struct arch_vm_region *c;
@@ -232,8 +222,8 @@ static void *nds32_dma_alloc_coherent(struct device *dev, size_t size,
 	return NULL;
 }
 
-static void nds32_dma_free(struct device *dev, size_t size, void *cpu_addr,
-			   dma_addr_t handle, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t handle, unsigned long attrs)
 {
 	struct arch_vm_region *c;
 	unsigned long flags, addr;
@@ -333,145 +323,43 @@ static int __init consistent_init(void)
 }
 
 core_initcall(consistent_init);
-static void consistent_sync(void *vaddr, size_t size, int direction, int master_type);
-static dma_addr_t nds32_dma_map_page(struct device *dev, struct page *page,
-				     unsigned long offset, size_t size,
-				     enum dma_data_direction dir,
-				     unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		consistent_sync((void *)(page_address(page) + offset), size, dir, FOR_DEVICE);
-	return page_to_phys(page) + offset;
-}
-
-static void nds32_dma_unmap_page(struct device *dev, dma_addr_t handle,
-				 size_t size, enum dma_data_direction dir,
-				 unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		consistent_sync(phys_to_virt(handle), size, dir, FOR_CPU);
-}
 
-/*
- * Make an area consistent for devices.
- */
-static void consistent_sync(void *vaddr, size_t size, int direction, int master_type)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	unsigned long start = (unsigned long)vaddr;
-	unsigned long end = start + size;
-
-	if (master_type == FOR_CPU) {
-		switch (direction) {
-		case DMA_TO_DEVICE:
-			break;
-		case DMA_FROM_DEVICE:
-		case DMA_BIDIRECTIONAL:
-			cpu_dma_inval_range(start, end);
-			break;
-		default:
-			BUG();
-		}
-	} else {
-		/* FOR_DEVICE */
-		switch (direction) {
-		case DMA_FROM_DEVICE:
-			break;
-		case DMA_TO_DEVICE:
-		case DMA_BIDIRECTIONAL:
-			cpu_dma_wb_range(start, end);
-			break;
-		default:
-			BUG();
-		}
+	void *addr = kmap_atomic_pfn(PHYS_PFN(paddr));
+	unsigned long start = (unsigned long)addr;
+
+	switch (dir) {
+	case DMA_FROM_DEVICE:
+		break;
+	case DMA_TO_DEVICE:
+	case DMA_BIDIRECTIONAL:
+		cpu_dma_wb_range(start, start + size);
+		break;
+	default:
+		BUG();
 	}
-}
 
-static int nds32_dma_map_sg(struct device *dev, struct scatterlist *sg,
-			    int nents, enum dma_data_direction dir,
-			    unsigned long attrs)
-{
-	int i;
-
-	for (i = 0; i < nents; i++, sg++) {
-		void *virt;
-		unsigned long pfn;
-		struct page *page = sg_page(sg);
-
-		sg->dma_address = sg_phys(sg);
-		pfn = page_to_pfn(page) + sg->offset / PAGE_SIZE;
-		page = pfn_to_page(pfn);
-		if (PageHighMem(page)) {
-			virt = kmap_atomic(page);
-			consistent_sync(virt, sg->length, dir, FOR_CPU);
-			kunmap_atomic(virt);
-		} else {
-			if (sg->offset > PAGE_SIZE)
-				panic("sg->offset:%08x > PAGE_SIZE\n",
-				      sg->offset);
-			virt = page_address(page) + sg->offset;
-			consistent_sync(virt, sg->length, dir, FOR_CPU);
-		}
-	}
-	return nents;
-}
-
-static void nds32_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-			       int nhwentries, enum dma_data_direction dir,
-			       unsigned long attrs)
-{
+	kunmap_atomic(addr);
 }
 
-static void
-nds32_dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
-			      size_t size, enum dma_data_direction dir)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	consistent_sync((void *)phys_to_virt(handle), size, dir, FOR_CPU);
-}
-
-static void
-nds32_dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
-				 size_t size, enum dma_data_direction dir)
-{
-	consistent_sync((void *)phys_to_virt(handle), size, dir, FOR_DEVICE);
-}
-
-static void
-nds32_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
-			  enum dma_data_direction dir)
-{
-	int i;
-
-	for (i = 0; i < nents; i++, sg++) {
-		char *virt =
-		    page_address((struct page *)sg->page_link) + sg->offset;
-		consistent_sync(virt, sg->length, dir, FOR_CPU);
+	void *addr = kmap_atomic_pfn(PHYS_PFN(paddr));
+	unsigned long start = (unsigned long)addr;
+
+	switch (dir) {
+	case DMA_TO_DEVICE:
+		break;
+	case DMA_FROM_DEVICE:
+	case DMA_BIDIRECTIONAL:
+		cpu_dma_inval_range(start, start + size);
+		break;
+	default:
+		BUG();
 	}
-}
-
-static void
-nds32_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-			     int nents, enum dma_data_direction dir)
-{
-	int i;
 
-	for (i = 0; i < nents; i++, sg++) {
-		char *virt =
-		    page_address((struct page *)sg->page_link) + sg->offset;
-		consistent_sync(virt, sg->length, dir, FOR_DEVICE);
-	}
+	kunmap_atomic(addr);
 }
-
-struct dma_map_ops nds32_dma_ops = {
-	.alloc = nds32_dma_alloc_coherent,
-	.free = nds32_dma_free,
-	.map_page = nds32_dma_map_page,
-	.unmap_page = nds32_dma_unmap_page,
-	.map_sg = nds32_dma_map_sg,
-	.unmap_sg = nds32_dma_unmap_sg,
-	.sync_single_for_device = nds32_dma_sync_single_for_device,
-	.sync_single_for_cpu = nds32_dma_sync_single_for_cpu,
-	.sync_sg_for_cpu = nds32_dma_sync_sg_for_cpu,
-	.sync_sg_for_device = nds32_dma_sync_sg_for_device,
-};
-
-EXPORT_SYMBOL(nds32_dma_ops);
-- 
2.17.0


From - Thu Nov 08 21:41:27 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 11/20] nios2: use generic dma_noncoherent_ops
Date: Fri, 11 May 2018 09:59:36 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24178>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/nios2/Kconfig                   |   3 +
 arch/nios2/include/asm/Kbuild        |   1 +
 arch/nios2/include/asm/dma-mapping.h |  20 ----
 arch/nios2/mm/dma-mapping.c          | 139 +++------------------------
 4 files changed, 17 insertions(+), 146 deletions(-)
 delete mode 100644 arch/nios2/include/asm/dma-mapping.h

diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 3d4ec88f1db1..92035042cf62 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -1,6 +1,9 @@
 # SPDX-License-Identifier: GPL-2.0
 config NIOS2
 	def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select DMA_NONCOHERENT_OPS
 	select TIMER_OF
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/nios2/include/asm/Kbuild b/arch/nios2/include/asm/Kbuild
index d232da2cbb38..24f6ee1ee69b 100644
--- a/arch/nios2/include/asm/Kbuild
+++ b/arch/nios2/include/asm/Kbuild
@@ -8,6 +8,7 @@ generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
deleted file mode 100644
index 6ceb92251da0..000000000000
--- a/arch/nios2/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * Copyright (C) 2011 Tobias Klauser <tklauser-93Khv+1bN0NyDzI6CaY1VQ@public.gmane.org>
- * Copyright (C) 2009 Wind River Systems Inc
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License.  See the file COPYING in the main directory of this
- * archive for more details.
- */
-
-#ifndef _ASM_NIOS2_DMA_MAPPING_H
-#define _ASM_NIOS2_DMA_MAPPING_H
-
-extern const struct dma_map_ops nios2_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &nios2_dma_ops;
-}
-
-#endif /* _ASM_NIOS2_DMA_MAPPING_H */
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index 4be815519dd4..4af9e5b5ba1c 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -12,18 +12,18 @@
 
 #include <linux/types.h>
 #include <linux/mm.h>
-#include <linux/export.h>
 #include <linux/string.h>
-#include <linux/scatterlist.h>
 #include <linux/dma-mapping.h>
 #include <linux/io.h>
 #include <linux/cache.h>
 #include <asm/cacheflush.h>
 
-static inline void __dma_sync_for_device(void *vaddr, size_t size,
-			      enum dma_data_direction direction)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	switch (direction) {
+	void *vaddr = phys_to_virt(paddr);
+
+	switch (dir) {
 	case DMA_FROM_DEVICE:
 		invalidate_dcache_range((unsigned long)vaddr,
 			(unsigned long)(vaddr + size));
@@ -42,10 +42,12 @@ static inline void __dma_sync_for_device(void *vaddr, size_t size,
 	}
 }
 
-static inline void __dma_sync_for_cpu(void *vaddr, size_t size,
-			      enum dma_data_direction direction)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	switch (direction) {
+	void *vaddr = phys_to_virt(paddr);
+
+	switch (dir) {
 	case DMA_BIDIRECTIONAL:
 	case DMA_FROM_DEVICE:
 		invalidate_dcache_range((unsigned long)vaddr,
@@ -58,8 +60,8 @@ static inline void __dma_sync_for_cpu(void *vaddr, size_t size,
 	}
 }
 
-static void *nios2_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -80,125 +82,10 @@ static void *nios2_dma_alloc(struct device *dev, size_t size,
 	return ret;
 }
 
-static void nios2_dma_free(struct device *dev, size_t size, void *vaddr,
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
 	unsigned long addr = (unsigned long) CAC_ADDR((unsigned long) vaddr);
 
 	free_pages(addr, get_order(size));
 }
-
-static int nios2_dma_map_sg(struct device *dev, struct scatterlist *sg,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	int i;
-
-	for_each_sg(sg, sg, nents, i) {
-		void *addr = sg_virt(sg);
-
-		if (!addr)
-			continue;
-
-		sg->dma_address = sg_phys(sg);
-
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		__dma_sync_for_device(addr, sg->length, direction);
-	}
-
-	return nents;
-}
-
-static dma_addr_t nios2_dma_map_page(struct device *dev, struct page *page,
-			unsigned long offset, size_t size,
-			enum dma_data_direction direction,
-			unsigned long attrs)
-{
-	void *addr = page_address(page) + offset;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		__dma_sync_for_device(addr, size, direction);
-
-	return page_to_phys(page) + offset;
-}
-
-static void nios2_dma_unmap_page(struct device *dev, dma_addr_t dma_address,
-		size_t size, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		__dma_sync_for_cpu(phys_to_virt(dma_address), size, direction);
-}
-
-static void nios2_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-		int nhwentries, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	void *addr;
-	int i;
-
-	if (direction == DMA_TO_DEVICE)
-		return;
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return;
-
-	for_each_sg(sg, sg, nhwentries, i) {
-		addr = sg_virt(sg);
-		if (addr)
-			__dma_sync_for_cpu(addr, sg->length, direction);
-	}
-}
-
-static void nios2_dma_sync_single_for_cpu(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	__dma_sync_for_cpu(phys_to_virt(dma_handle), size, direction);
-}
-
-static void nios2_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	__dma_sync_for_device(phys_to_virt(dma_handle), size, direction);
-}
-
-static void nios2_dma_sync_sg_for_cpu(struct device *dev,
-		struct scatterlist *sg, int nelems,
-		enum dma_data_direction direction)
-{
-	int i;
-
-	/* Make sure that gcc doesn't leave the empty loop body.  */
-	for_each_sg(sg, sg, nelems, i)
-		__dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
-}
-
-static void nios2_dma_sync_sg_for_device(struct device *dev,
-		struct scatterlist *sg, int nelems,
-		enum dma_data_direction direction)
-{
-	int i;
-
-	/* Make sure that gcc doesn't leave the empty loop body.  */
-	for_each_sg(sg, sg, nelems, i)
-		__dma_sync_for_device(sg_virt(sg), sg->length, direction);
-
-}
-
-const struct dma_map_ops nios2_dma_ops = {
-	.alloc			= nios2_dma_alloc,
-	.free			= nios2_dma_free,
-	.map_page		= nios2_dma_map_page,
-	.unmap_page		= nios2_dma_unmap_page,
-	.map_sg			= nios2_dma_map_sg,
-	.unmap_sg		= nios2_dma_unmap_sg,
-	.sync_single_for_device	= nios2_dma_sync_single_for_device,
-	.sync_single_for_cpu	= nios2_dma_sync_single_for_cpu,
-	.sync_sg_for_cpu	= nios2_dma_sync_sg_for_cpu,
-	.sync_sg_for_device	= nios2_dma_sync_sg_for_device,
-};
-EXPORT_SYMBOL(nios2_dma_ops);
-- 
2.17.0


From - Thu Nov 08 21:41:27 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
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Subject: [PATCH 12/20] openrisc: use generic dma_noncoherent_ops
Date: Fri, 11 May 2018 09:59:37 +0200
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Xref: news.gmane.org gmane.linux.kernel.iommu:24179 gmane.linux.kernel.cross-arch:44023 gmane.linux.ports.parisc:28606 gmane.linux.ports.sh.devel:57012 gmane.linux.ports.hexagon:1709 gmane.linux.kernel:2764213 gmane.linux.ports.alpha:5034 gmane.linux.ports.sparc:27861 gmane.linux.kernel.arc:3875 gmane.linux.ports.arm.kernel:649162
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24179>

Switch to the generic noncoherent direct mapping implementation.

Fix sync_single_for_device to do the same cache coherency operations as
the more tested map_single path, as both should transfer ownership to
the device.

Remove the sync_single_for_cpu implementation as no cache coherency
operations are used in the more commonly used unmap_single case, both
of which transfer ownership to the CPU.

Implement the missing sync_sg_for_device operation, matching the cache
coherency operations in sync_single_for_device and map_{single,sg}.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/openrisc/Kconfig                   |   2 +
 arch/openrisc/include/asm/Kbuild        |   1 +
 arch/openrisc/include/asm/dma-mapping.h |  35 --------
 arch/openrisc/kernel/dma.c              | 109 +++---------------------
 4 files changed, 13 insertions(+), 134 deletions(-)
 delete mode 100644 arch/openrisc/include/asm/dma-mapping.h

diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 9ecad05bfc73..65e3c574c9d3 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -6,6 +6,8 @@
 
 config OPENRISC
 	def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select DMA_NONCOHERENT_OPS
 	select OF
 	select OF_EARLY_FLATTREE
 	select IRQ_DOMAIN
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
index f05c722a21f8..e663a996b612 100644
--- a/arch/openrisc/include/asm/Kbuild
+++ b/arch/openrisc/include/asm/Kbuild
@@ -6,6 +6,7 @@ generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
deleted file mode 100644
index e212a1f0b6d2..000000000000
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * OpenRISC Linux
- *
- * Linux architectural port borrowing liberally from similar works of
- * others.  All original copyrights apply as per the original source
- * declaration.
- *
- * OpenRISC implementation:
- * Copyright (C) 2010-2011 Jonas Bonn <jonas-A9uVI2HLR7kOP4wsBPIw7w@public.gmane.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef __ASM_OPENRISC_DMA_MAPPING_H
-#define __ASM_OPENRISC_DMA_MAPPING_H
-
-/*
- * See Documentation/DMA-API-HOWTO.txt and
- * Documentation/DMA-API.txt for documentation.
- */
-
-#include <linux/dma-debug.h>
-#include <linux/dma-mapping.h>
-
-extern const struct dma_map_ops or1k_dma_map_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &or1k_dma_map_ops;
-}
-
-#endif	/* __ASM_OPENRISC_DMA_MAPPING_H */
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index ec7fd45704d2..cce99405edf4 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -19,9 +19,7 @@
  * the only thing implemented properly.  The rest need looking into...
  */
 
-#include <linux/dma-mapping.h>
-#include <linux/dma-debug.h>
-#include <linux/export.h>
+#include <linux/dma-noncoherent.h>
 
 #include <asm/cpuinfo.h>
 #include <asm/spr_defs.h>
@@ -80,10 +78,9 @@ page_clear_nocache(pte_t *pte, unsigned long addr,
  * is being ignored for now; uncached but write-combined memory is a
  * missing feature of the OR1K.
  */
-static void *
-or1k_dma_alloc(struct device *dev, size_t size,
-	       dma_addr_t *dma_handle, gfp_t gfp,
-	       unsigned long attrs)
+void *
+arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	unsigned long va;
 	void *page;
@@ -115,9 +112,9 @@ or1k_dma_alloc(struct device *dev, size_t size,
 	return (void *)va;
 }
 
-static void
-or1k_dma_free(struct device *dev, size_t size, void *vaddr,
-	      dma_addr_t dma_handle, unsigned long attrs)
+void
+arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, unsigned long attrs)
 {
 	unsigned long va = (unsigned long)vaddr;
 	struct mm_walk walk = {
@@ -133,18 +130,11 @@ or1k_dma_free(struct device *dev, size_t size, void *vaddr,
 	free_pages_exact(vaddr, size);
 }
 
-static dma_addr_t
-or1k_map_page(struct device *dev, struct page *page,
-	      unsigned long offset, size_t size,
-	      enum dma_data_direction dir,
-	      unsigned long attrs)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t addr, size_t size,
+		enum dma_data_direction dir)
 {
-	unsigned long cl;
-	dma_addr_t addr = page_to_phys(page) + offset;
 	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return addr;
+	unsigned long cl;
 
 	switch (dir) {
 	case DMA_TO_DEVICE:
@@ -167,83 +157,4 @@ or1k_map_page(struct device *dev, struct page *page,
 		 */
 		break;
 	}
-
-	return addr;
 }
-
-static void
-or1k_unmap_page(struct device *dev, dma_addr_t dma_handle,
-		size_t size, enum dma_data_direction dir,
-		unsigned long attrs)
-{
-	/* Nothing special to do here... */
-}
-
-static int
-or1k_map_sg(struct device *dev, struct scatterlist *sg,
-	    int nents, enum dma_data_direction dir,
-	    unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		s->dma_address = or1k_map_page(dev, sg_page(s), s->offset,
-					       s->length, dir, 0);
-	}
-
-	return nents;
-}
-
-static void
-or1k_unmap_sg(struct device *dev, struct scatterlist *sg,
-	      int nents, enum dma_data_direction dir,
-	      unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		or1k_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir, 0);
-	}
-}
-
-static void
-or1k_sync_single_for_cpu(struct device *dev,
-			 dma_addr_t dma_handle, size_t size,
-			 enum dma_data_direction dir)
-{
-	unsigned long cl;
-	dma_addr_t addr = dma_handle;
-	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
-
-	/* Invalidate the dcache for the requested range */
-	for (cl = addr; cl < addr + size; cl += cpuinfo->dcache_block_size)
-		mtspr(SPR_DCBIR, cl);
-}
-
-static void
-or1k_sync_single_for_device(struct device *dev,
-			    dma_addr_t dma_handle, size_t size,
-			    enum dma_data_direction dir)
-{
-	unsigned long cl;
-	dma_addr_t addr = dma_handle;
-	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
-
-	/* Flush the dcache for the requested range */
-	for (cl = addr; cl < addr + size; cl += cpuinfo->dcache_block_size)
-		mtspr(SPR_DCBFR, cl);
-}
-
-const struct dma_map_ops or1k_dma_map_ops = {
-	.alloc = or1k_dma_alloc,
-	.free = or1k_dma_free,
-	.map_page = or1k_map_page,
-	.unmap_page = or1k_unmap_page,
-	.map_sg = or1k_map_sg,
-	.unmap_sg = or1k_unmap_sg,
-	.sync_single_for_cpu = or1k_sync_single_for_cpu,
-	.sync_single_for_device = or1k_sync_single_for_device,
-};
-EXPORT_SYMBOL(or1k_dma_map_ops);
-- 
2.17.0


From - Thu Nov 08 21:41:27 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 13/20] sh: simplify get_arch_dma_ops
Date: Fri, 11 May 2018 09:59:38 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24180>

Remove the indirection through the dma_ops variable, and just return
nommu_dma_ops directly from get_arch_dma_ops.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/sh/include/asm/dma-mapping.h |  5 ++---
 arch/sh/kernel/dma-nommu.c        |  8 +-------
 arch/sh/mm/consistent.c           |  3 ---
 arch/sh/mm/init.c                 | 10 ----------
 4 files changed, 3 insertions(+), 23 deletions(-)

diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 41167931e5d9..149e71f95be7 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -2,12 +2,11 @@
 #ifndef __ASM_SH_DMA_MAPPING_H
 #define __ASM_SH_DMA_MAPPING_H
 
-extern const struct dma_map_ops *dma_ops;
-extern void no_iommu_init(void);
+extern const struct dma_map_ops nommu_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	return dma_ops;
+	return &nommu_dma_ops;
 }
 
 extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 3e3a32fc676e..79a9edafa5b0 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -79,10 +79,4 @@ const struct dma_map_ops nommu_dma_ops = {
 	.sync_sg_for_device	= nommu_sync_sg_for_device,
 #endif
 };
-
-void __init no_iommu_init(void)
-{
-	if (dma_ops)
-		return;
-	dma_ops = &nommu_dma_ops;
-}
+EXPORT_SYMBOL(nommu_dma_ops);
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 35ea3099a3b6..221832eec33b 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -20,9 +20,6 @@
 #include <asm/cacheflush.h>
 #include <asm/addrspace.h>
 
-const struct dma_map_ops *dma_ops;
-EXPORT_SYMBOL(dma_ops);
-
 void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 				 dma_addr_t *dma_handle, gfp_t gfp,
 				 unsigned long attrs)
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index ce0bbaa7e404..32e09f03e6bf 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -395,22 +395,12 @@ void __init paging_init(void)
 	free_area_init_nodes(max_zone_pfns);
 }
 
-/*
- * Early initialization for any I/O MMUs we might have.
- */
-static void __init iommu_init(void)
-{
-	no_iommu_init();
-}
-
 unsigned int mem_init_done = 0;
 
 void __init mem_init(void)
 {
 	pg_data_t *pgdat;
 
-	iommu_init();
-
 	high_memory = NULL;
 	for_each_online_pgdat(pgdat)
 		high_memory = max_t(void *, high_memory,
-- 
2.17.0


From - Thu Nov 08 21:41:27 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 14/20] sh: introduce a sh_cacheop_vaddr helper
Date: Fri, 11 May 2018 09:59:39 +0200
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And use it in the maple bus code to avoid a dma API dependency.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/sh/include/asm/cacheflush.h | 7 +++++++
 arch/sh/mm/consistent.c          | 5 +----
 drivers/sh/maple/maple.c         | 7 ++++---
 3 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index d103ab5a4e4b..b932e42ef028 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -101,5 +101,12 @@ void kunmap_coherent(void *kvaddr);
 
 void cpu_cache_init(void);
 
+static inline void *sh_cacheop_vaddr(void *vaddr)
+{
+	if (__in_29bit_mode())
+		vaddr = (void *)CAC_ADDR((unsigned long)vaddr);
+	return vaddr;
+}
+
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_CACHEFLUSH_H */
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 221832eec33b..f18483494c46 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -69,10 +69,7 @@ void dma_generic_free_coherent(struct device *dev, size_t size,
 void sh_sync_dma_for_device(void *vaddr, size_t size,
 		    enum dma_data_direction direction)
 {
-	void *addr;
-
-	addr = __in_29bit_mode() ?
-	       (void *)CAC_ADDR((unsigned long)vaddr) : vaddr;
+	void *addr = sh_cacheop_vaddr(vaddr);
 
 	switch (direction) {
 	case DMA_FROM_DEVICE:		/* invalidate only */
diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c
index 7525039d812c..c9c354bd713a 100644
--- a/drivers/sh/maple/maple.c
+++ b/drivers/sh/maple/maple.c
@@ -300,8 +300,8 @@ static void maple_send(void)
 	mutex_unlock(&maple_wlist_lock);
 	if (maple_packets > 0) {
 		for (i = 0; i < (1 << MAPLE_DMA_PAGES); i++)
-			sh_sync_dma_for_device(maple_sendbuf + i * PAGE_SIZE,
-				       PAGE_SIZE, DMA_BIDIRECTIONAL);
+			__flush_purge_region(maple_sendbuf + i * PAGE_SIZE,
+					PAGE_SIZE);
 	}
 
 finish:
@@ -642,7 +642,8 @@ static void maple_dma_handler(struct work_struct *work)
 		list_for_each_entry_safe(mq, nmq, &maple_sentq, list) {
 			mdev = mq->dev;
 			recvbuf = mq->recvbuf->buf;
-			sh_sync_dma_for_device(recvbuf, 0x400, DMA_FROM_DEVICE);
+			__flush_invalidate_region(sh_cacheop_vaddr(recvbuf),
+					0x400);
 			code = recvbuf[0];
 			kfree(mq->sendbuf);
 			list_del_init(&mq->list);
-- 
2.17.0


From - Thu Nov 08 21:41:27 2018
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X-Mozilla-Keys:                                                                                 
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 15/20] sh: use dma_direct_ops for the CONFIG_DMA_COHERENT case
Date: Fri, 11 May 2018 09:59:40 +0200
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Xref: news.gmane.org gmane.linux.kernel.iommu:24182 gmane.linux.kernel.cross-arch:44026 gmane.linux.ports.parisc:28609 gmane.linux.ports.sh.devel:57015 gmane.linux.ports.hexagon:1712 gmane.linux.kernel:2764217 gmane.linux.ports.alpha:5037 gmane.linux.ports.sparc:27864 gmane.linux.kernel.arc:3878 gmane.linux.ports.arm.kernel:649166
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24182>

This is a slight change in behavior as we avoid the detour through the
virtual mapping for the coherent allocator, but if this CPU really is
coherent that should be the right thing to do.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/sh/Kconfig                   | 1 +
 arch/sh/include/asm/dma-mapping.h | 4 ++++
 arch/sh/kernel/Makefile           | 4 ++--
 arch/sh/kernel/dma-nommu.c        | 4 ----
 4 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 7d521926041e..d0b095323d62 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -157,6 +157,7 @@ config SWAP_IO_SPACE
 	bool
 
 config DMA_COHERENT
+	select DMA_DIRECT_OPS
 	bool
 
 config DMA_NONCOHERENT
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 149e71f95be7..1ebc6a4eb1c5 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -6,7 +6,11 @@ extern const struct dma_map_ops nommu_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
+#ifdef CONFIG_DMA_NONCOHERENT
 	return &nommu_dma_ops;
+#else
+	return &dma_direct_ops;
+#endif
 }
 
 extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index dc80041f7363..cb5f1bfb52de 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -12,7 +12,7 @@ endif
 
 CFLAGS_REMOVE_return_address.o = -pg
 
-obj-y	:= debugtraps.o dma-nommu.o dumpstack.o 		\
+obj-y	:= debugtraps.o dumpstack.o 		\
 	   idle.o io.o irq.o irq_$(BITS).o kdebugfs.o			\
 	   machvec.o nmi_debug.o process.o				\
 	   process_$(BITS).o ptrace.o ptrace_$(BITS).o			\
@@ -45,7 +45,7 @@ obj-$(CONFIG_DUMP_CODE)		+= disassemble.o
 obj-$(CONFIG_HIBERNATION)	+= swsusp.o
 obj-$(CONFIG_DWARF_UNWINDER)	+= dwarf.o
 obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_callchain.o
-
+obj-$(CONFIG_DMA_NONCOHERENT)	+= dma-nommu.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)		+= hw_breakpoint.o
 
 ccflags-y := -Werror
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 79a9edafa5b0..d8689b1cb743 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -51,7 +51,6 @@ static int nommu_map_sg(struct device *dev, struct scatterlist *sg,
 	return nents;
 }
 
-#ifdef CONFIG_DMA_NONCOHERENT
 static void nommu_sync_single_for_device(struct device *dev, dma_addr_t addr,
 			      size_t size, enum dma_data_direction dir)
 {
@@ -67,16 +66,13 @@ static void nommu_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
 	for_each_sg(sg, s, nelems, i)
 		sh_sync_dma_for_device(sg_virt(s), s->length, dir);
 }
-#endif
 
 const struct dma_map_ops nommu_dma_ops = {
 	.alloc			= dma_generic_alloc_coherent,
 	.free			= dma_generic_free_coherent,
 	.map_page		= nommu_map_page,
 	.map_sg			= nommu_map_sg,
-#ifdef CONFIG_DMA_NONCOHERENT
 	.sync_single_for_device	= nommu_sync_single_for_device,
 	.sync_sg_for_device	= nommu_sync_sg_for_device,
-#endif
 };
 EXPORT_SYMBOL(nommu_dma_ops);
-- 
2.17.0


From - Thu Nov 08 21:41:27 2018
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Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 16/20] mm: split arch/sh/mm/consistent.c
Date: Fri, 11 May 2018 09:59:41 +0200
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Half of the file just contains platform device memory setup code which
is required for all builds, and half contains helpers for dma coherent
allocation, which is only needed if CONFIG_DMA_NONCOHERENT is enabled.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/sh/kernel/Makefile       |  2 +-
 arch/sh/kernel/dma-coherent.c | 80 +++++++++++++++++++++++++++++++++++
 arch/sh/mm/consistent.c       | 76 ---------------------------------
 3 files changed, 81 insertions(+), 77 deletions(-)
 create mode 100644 arch/sh/kernel/dma-coherent.c

diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index cb5f1bfb52de..d5ddb64bfffe 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -45,7 +45,7 @@ obj-$(CONFIG_DUMP_CODE)		+= disassemble.o
 obj-$(CONFIG_HIBERNATION)	+= swsusp.o
 obj-$(CONFIG_DWARF_UNWINDER)	+= dwarf.o
 obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_callchain.o
-obj-$(CONFIG_DMA_NONCOHERENT)	+= dma-nommu.o
+obj-$(CONFIG_DMA_NONCOHERENT)	+= dma-nommu.o dma-coherent.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)		+= hw_breakpoint.o
 
 ccflags-y := -Werror
diff --git a/arch/sh/kernel/dma-coherent.c b/arch/sh/kernel/dma-coherent.c
new file mode 100644
index 000000000000..4f41e5cd5207
--- /dev/null
+++ b/arch/sh/kernel/dma-coherent.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2004 - 2007  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+#include <asm/cacheflush.h>
+#include <asm/addrspace.h>
+
+void *dma_generic_alloc_coherent(struct device *dev, size_t size,
+				 dma_addr_t *dma_handle, gfp_t gfp,
+				 unsigned long attrs)
+{
+	void *ret, *ret_nocache;
+	int order = get_order(size);
+
+	gfp |= __GFP_ZERO;
+
+	ret = (void *)__get_free_pages(gfp, order);
+	if (!ret)
+		return NULL;
+
+	/*
+	 * Pages from the page allocator may have data present in
+	 * cache. So flush the cache before using uncached memory.
+	 */
+	sh_sync_dma_for_device(ret, size, DMA_BIDIRECTIONAL);
+
+	ret_nocache = (void __force *)ioremap_nocache(virt_to_phys(ret), size);
+	if (!ret_nocache) {
+		free_pages((unsigned long)ret, order);
+		return NULL;
+	}
+
+	split_page(pfn_to_page(virt_to_phys(ret) >> PAGE_SHIFT), order);
+
+	*dma_handle = virt_to_phys(ret) - PFN_PHYS(dev->dma_pfn_offset);
+
+	return ret_nocache;
+}
+
+void dma_generic_free_coherent(struct device *dev, size_t size,
+			       void *vaddr, dma_addr_t dma_handle,
+			       unsigned long attrs)
+{
+	int order = get_order(size);
+	unsigned long pfn = (dma_handle >> PAGE_SHIFT) + dev->dma_pfn_offset;
+	int k;
+
+	for (k = 0; k < (1 << order); k++)
+		__free_pages(pfn_to_page(pfn + k), 0);
+
+	iounmap(vaddr);
+}
+
+void sh_sync_dma_for_device(void *vaddr, size_t size,
+		    enum dma_data_direction direction)
+{
+	void *addr = sh_cacheop_vaddr(vaddr);
+
+	switch (direction) {
+	case DMA_FROM_DEVICE:		/* invalidate only */
+		__flush_invalidate_region(addr, size);
+		break;
+	case DMA_TO_DEVICE:		/* writeback only */
+		__flush_wback_region(addr, size);
+		break;
+	case DMA_BIDIRECTIONAL:		/* writeback and invalidate */
+		__flush_purge_region(addr, size);
+		break;
+	default:
+		BUG();
+	}
+}
+EXPORT_SYMBOL(sh_sync_dma_for_device);
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index f18483494c46..5da5be74fb6b 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -1,10 +1,6 @@
 /*
- * arch/sh/mm/consistent.c
- *
  * Copyright (C) 2004 - 2007  Paul Mundt
  *
- * Declared coherent memory functions based on arch/x86/kernel/pci-dma_32.c
- *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
@@ -13,79 +9,7 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
-#include <linux/dma-debug.h>
 #include <linux/io.h>
-#include <linux/module.h>
-#include <linux/gfp.h>
-#include <asm/cacheflush.h>
-#include <asm/addrspace.h>
-
-void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-				 dma_addr_t *dma_handle, gfp_t gfp,
-				 unsigned long attrs)
-{
-	void *ret, *ret_nocache;
-	int order = get_order(size);
-
-	gfp |= __GFP_ZERO;
-
-	ret = (void *)__get_free_pages(gfp, order);
-	if (!ret)
-		return NULL;
-
-	/*
-	 * Pages from the page allocator may have data present in
-	 * cache. So flush the cache before using uncached memory.
-	 */
-	sh_sync_dma_for_device(ret, size, DMA_BIDIRECTIONAL);
-
-	ret_nocache = (void __force *)ioremap_nocache(virt_to_phys(ret), size);
-	if (!ret_nocache) {
-		free_pages((unsigned long)ret, order);
-		return NULL;
-	}
-
-	split_page(pfn_to_page(virt_to_phys(ret) >> PAGE_SHIFT), order);
-
-	*dma_handle = virt_to_phys(ret) - PFN_PHYS(dev->dma_pfn_offset);
-
-	return ret_nocache;
-}
-
-void dma_generic_free_coherent(struct device *dev, size_t size,
-			       void *vaddr, dma_addr_t dma_handle,
-			       unsigned long attrs)
-{
-	int order = get_order(size);
-	unsigned long pfn = (dma_handle >> PAGE_SHIFT) + dev->dma_pfn_offset;
-	int k;
-
-	for (k = 0; k < (1 << order); k++)
-		__free_pages(pfn_to_page(pfn + k), 0);
-
-	iounmap(vaddr);
-}
-
-void sh_sync_dma_for_device(void *vaddr, size_t size,
-		    enum dma_data_direction direction)
-{
-	void *addr = sh_cacheop_vaddr(vaddr);
-
-	switch (direction) {
-	case DMA_FROM_DEVICE:		/* invalidate only */
-		__flush_invalidate_region(addr, size);
-		break;
-	case DMA_TO_DEVICE:		/* writeback only */
-		__flush_wback_region(addr, size);
-		break;
-	case DMA_BIDIRECTIONAL:		/* writeback and invalidate */
-		__flush_purge_region(addr, size);
-		break;
-	default:
-		BUG();
-	}
-}
-EXPORT_SYMBOL(sh_sync_dma_for_device);
 
 static int __init memchunk_setup(char *str)
 {
-- 
2.17.0


From - Thu Nov 08 21:41:27 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 17/20] sh: use generic dma_noncoherent_ops
Date: Fri, 11 May 2018 09:59:42 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24184>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/sh/Kconfig                   |  3 +-
 arch/sh/include/asm/Kbuild        |  1 +
 arch/sh/include/asm/dma-mapping.h | 26 -----------
 arch/sh/kernel/Makefile           |  2 +-
 arch/sh/kernel/dma-coherent.c     | 20 ++++----
 arch/sh/kernel/dma-nommu.c        | 78 -------------------------------
 6 files changed, 13 insertions(+), 117 deletions(-)
 delete mode 100644 arch/sh/include/asm/dma-mapping.h
 delete mode 100644 arch/sh/kernel/dma-nommu.c

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index d0b095323d62..9809e0604af3 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -49,7 +49,6 @@ config SUPERH
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select HAVE_NMI
-	select NEED_DMA_MAP_STATE
 	select NEED_SG_DMA_LENGTH
 
 	help
@@ -162,6 +161,8 @@ config DMA_COHERENT
 
 config DMA_NONCOHERENT
 	def_bool !DMA_COHERENT
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select DMA_NONCOHERENT_OPS
 
 config PGTABLE_LEVELS
 	default 3 if X2TLB
diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index 1efcce74997b..50f7e878ea1b 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -1,6 +1,7 @@
 generic-y += current.h
 generic-y += delay.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += irq_regs.h
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
deleted file mode 100644
index 1ebc6a4eb1c5..000000000000
--- a/arch/sh/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_SH_DMA_MAPPING_H
-#define __ASM_SH_DMA_MAPPING_H
-
-extern const struct dma_map_ops nommu_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-#ifdef CONFIG_DMA_NONCOHERENT
-	return &nommu_dma_ops;
-#else
-	return &dma_direct_ops;
-#endif
-}
-
-extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-					dma_addr_t *dma_addr, gfp_t flag,
-					unsigned long attrs);
-extern void dma_generic_free_coherent(struct device *dev, size_t size,
-				      void *vaddr, dma_addr_t dma_handle,
-				      unsigned long attrs);
-
-void sh_sync_dma_for_device(void *vaddr, size_t size,
-	    enum dma_data_direction dir);
-
-#endif /* __ASM_SH_DMA_MAPPING_H */
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index d5ddb64bfffe..59673f8a3379 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -45,7 +45,7 @@ obj-$(CONFIG_DUMP_CODE)		+= disassemble.o
 obj-$(CONFIG_HIBERNATION)	+= swsusp.o
 obj-$(CONFIG_DWARF_UNWINDER)	+= dwarf.o
 obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_callchain.o
-obj-$(CONFIG_DMA_NONCOHERENT)	+= dma-nommu.o dma-coherent.o
+obj-$(CONFIG_DMA_NONCOHERENT)	+= dma-coherent.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)		+= hw_breakpoint.o
 
 ccflags-y := -Werror
diff --git a/arch/sh/kernel/dma-coherent.c b/arch/sh/kernel/dma-coherent.c
index 4f41e5cd5207..11b8c4ac6adb 100644
--- a/arch/sh/kernel/dma-coherent.c
+++ b/arch/sh/kernel/dma-coherent.c
@@ -7,14 +7,13 @@
  */
 #include <linux/mm.h>
 #include <linux/init.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/module.h>
 #include <asm/cacheflush.h>
 #include <asm/addrspace.h>
 
-void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-				 dma_addr_t *dma_handle, gfp_t gfp,
-				 unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret, *ret_nocache;
 	int order = get_order(size);
@@ -44,9 +43,8 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 	return ret_nocache;
 }
 
-void dma_generic_free_coherent(struct device *dev, size_t size,
-			       void *vaddr, dma_addr_t dma_handle,
-			       unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, unsigned long attrs)
 {
 	int order = get_order(size);
 	unsigned long pfn = (dma_handle >> PAGE_SHIFT) + dev->dma_pfn_offset;
@@ -58,12 +56,12 @@ void dma_generic_free_coherent(struct device *dev, size_t size,
 	iounmap(vaddr);
 }
 
-void sh_sync_dma_for_device(void *vaddr, size_t size,
-		    enum dma_data_direction direction)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	void *addr = sh_cacheop_vaddr(vaddr);
+	void *addr = sh_cacheop_vaddr(phys_to_virt(paddr));
 
-	switch (direction) {
+	switch (dir) {
 	case DMA_FROM_DEVICE:		/* invalidate only */
 		__flush_invalidate_region(addr, size);
 		break;
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
deleted file mode 100644
index d8689b1cb743..000000000000
--- a/arch/sh/kernel/dma-nommu.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * DMA mapping support for platforms lacking IOMMUs.
- *
- * Copyright (C) 2009  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/dma-mapping.h>
-#include <linux/io.h>
-#include <asm/cacheflush.h>
-
-static dma_addr_t nommu_map_page(struct device *dev, struct page *page,
-				 unsigned long offset, size_t size,
-				 enum dma_data_direction dir,
-				 unsigned long attrs)
-{
-	dma_addr_t addr = page_to_phys(page) + offset
-		- PFN_PHYS(dev->dma_pfn_offset);
-
-	WARN_ON(size == 0);
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		sh_sync_dma_for_device(page_address(page) + offset, size, dir);
-
-	return addr;
-}
-
-static int nommu_map_sg(struct device *dev, struct scatterlist *sg,
-			int nents, enum dma_data_direction dir,
-			unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	WARN_ON(nents == 0 || sg[0].length == 0);
-
-	for_each_sg(sg, s, nents, i) {
-		dma_addr_t offset = PFN_PHYS(dev->dma_pfn_offset);
-
-		BUG_ON(!sg_page(s));
-
-		if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-			sh_sync_dma_for_device(sg_virt(s), s->length, dir);
-
-		s->dma_address = sg_phys(s) - offset;
-		s->dma_length = s->length;
-	}
-
-	return nents;
-}
-
-static void nommu_sync_single_for_device(struct device *dev, dma_addr_t addr,
-			      size_t size, enum dma_data_direction dir)
-{
-	sh_sync_dma_for_device(phys_to_virt(addr), size, dir);
-}
-
-static void nommu_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-			  int nelems, enum dma_data_direction dir)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nelems, i)
-		sh_sync_dma_for_device(sg_virt(s), s->length, dir);
-}
-
-const struct dma_map_ops nommu_dma_ops = {
-	.alloc			= dma_generic_alloc_coherent,
-	.free			= dma_generic_free_coherent,
-	.map_page		= nommu_map_page,
-	.map_sg			= nommu_map_sg,
-	.sync_single_for_device	= nommu_sync_single_for_device,
-	.sync_sg_for_device	= nommu_sync_sg_for_device,
-};
-EXPORT_SYMBOL(nommu_dma_ops);
-- 
2.17.0


From - Thu Nov 08 21:41:27 2018
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Subject: [PATCH 18/20] xtensa: use generic dma_noncoherent_ops
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Xref: news.gmane.org gmane.linux.kernel.iommu:24185 gmane.linux.kernel.cross-arch:44029 gmane.linux.ports.parisc:28612 gmane.linux.ports.sh.devel:57018 gmane.linux.ports.hexagon:1715 gmane.linux.kernel:2764220 gmane.linux.ports.alpha:5040 gmane.linux.ports.sparc:27867 gmane.linux.kernel.arc:3881 gmane.linux.ports.arm.kernel:649169
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24185>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/xtensa/Kconfig                   |   3 +
 arch/xtensa/include/asm/Kbuild        |   1 +
 arch/xtensa/include/asm/dma-mapping.h |  26 ------
 arch/xtensa/kernel/pci-dma.c          | 130 +++-----------------------
 4 files changed, 19 insertions(+), 141 deletions(-)
 delete mode 100644 arch/xtensa/include/asm/dma-mapping.h

diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 17df332269b2..ef114648e954 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -5,11 +5,14 @@ config ZONE_DMA
 config XTENSA
 	def_bool y
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_WANT_FRAME_POINTERS
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select BUILDTIME_EXTABLE_SORT
 	select CLONE_BACKWARDS
 	select COMMON_CLK
+	select DMA_NONCOHERENT_OPS
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_IRQ_SHOW
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index 436b20337168..a8d6cd3bee4b 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -2,6 +2,7 @@ generic-y += bug.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma-contiguous.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
deleted file mode 100644
index 44098800dad7..000000000000
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2003 - 2005 Tensilica Inc.
- * Copyright (C) 2015 Cadence Design Systems Inc.
- */
-
-#ifndef _XTENSA_DMA_MAPPING_H
-#define _XTENSA_DMA_MAPPING_H
-
-#include <asm/cache.h>
-#include <asm/io.h>
-
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-
-extern const struct dma_map_ops xtensa_dma_map_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &xtensa_dma_map_ops;
-}
-
-#endif	/* _XTENSA_DMA_MAPPING_H */
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index 392b4a80ebc2..a83d60e92908 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -16,26 +16,24 @@
  */
 
 #include <linux/dma-contiguous.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/dma-direct.h>
 #include <linux/gfp.h>
 #include <linux/highmem.h>
 #include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/string.h>
 #include <linux/types.h>
 #include <asm/cacheflush.h>
 #include <asm/io.h>
 
-static void do_cache_op(dma_addr_t dma_handle, size_t size,
+static void do_cache_op(phys_addr_t paddr, size_t size,
 			void (*fn)(unsigned long, unsigned long))
 {
-	unsigned long off = dma_handle & (PAGE_SIZE - 1);
-	unsigned long pfn = PFN_DOWN(dma_handle);
+	unsigned long off = paddr & (PAGE_SIZE - 1);
+	unsigned long pfn = PFN_DOWN(paddr);
 	struct page *page = pfn_to_page(pfn);
 
 	if (!PageHighMem(page))
-		fn((unsigned long)bus_to_virt(dma_handle), size);
+		fn((unsigned long)phys_to_virt(paddr), size);
 	else
 		while (size > 0) {
 			size_t sz = min_t(size_t, size, PAGE_SIZE - off);
@@ -49,14 +47,13 @@ static void do_cache_op(dma_addr_t dma_handle, size_t size,
 		}
 }
 
-static void xtensa_sync_single_for_cpu(struct device *dev,
-				       dma_addr_t dma_handle, size_t size,
-				       enum dma_data_direction dir)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
 	switch (dir) {
 	case DMA_BIDIRECTIONAL:
 	case DMA_FROM_DEVICE:
-		do_cache_op(dma_handle, size, __invalidate_dcache_range);
+		do_cache_op(paddr, size, __invalidate_dcache_range);
 		break;
 
 	case DMA_NONE:
@@ -68,15 +65,14 @@ static void xtensa_sync_single_for_cpu(struct device *dev,
 	}
 }
 
-static void xtensa_sync_single_for_device(struct device *dev,
-					  dma_addr_t dma_handle, size_t size,
-					  enum dma_data_direction dir)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
 	switch (dir) {
 	case DMA_BIDIRECTIONAL:
 	case DMA_TO_DEVICE:
 		if (XCHAL_DCACHE_IS_WRITEBACK)
-			do_cache_op(dma_handle, size, __flush_dcache_range);
+			do_cache_op(paddr, size, __flush_dcache_range);
 		break;
 
 	case DMA_NONE:
@@ -88,40 +84,13 @@ static void xtensa_sync_single_for_device(struct device *dev,
 	}
 }
 
-static void xtensa_sync_sg_for_cpu(struct device *dev,
-				   struct scatterlist *sg, int nents,
-				   enum dma_data_direction dir)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		xtensa_sync_single_for_cpu(dev, sg_dma_address(s),
-					   sg_dma_len(s), dir);
-	}
-}
-
-static void xtensa_sync_sg_for_device(struct device *dev,
-				      struct scatterlist *sg, int nents,
-				      enum dma_data_direction dir)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		xtensa_sync_single_for_device(dev, sg_dma_address(s),
-					      sg_dma_len(s), dir);
-	}
-}
-
 /*
  * Note: We assume that the full memory space is always mapped to 'kseg'
  *	 Otherwise we have to use page attributes (not implemented).
  */
 
-static void *xtensa_dma_alloc(struct device *dev, size_t size,
-			      dma_addr_t *handle, gfp_t flag,
-			      unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+		gfp_t flag, unsigned long attrs)
 {
 	unsigned long ret;
 	unsigned long uncached;
@@ -171,8 +140,8 @@ static void *xtensa_dma_alloc(struct device *dev, size_t size,
 	return (void *)uncached;
 }
 
-static void xtensa_dma_free(struct device *dev, size_t size, void *vaddr,
-			    dma_addr_t dma_handle, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, unsigned long attrs)
 {
 	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	unsigned long addr = (unsigned long)vaddr;
@@ -192,72 +161,3 @@ static void xtensa_dma_free(struct device *dev, size_t size, void *vaddr,
 	if (!dma_release_from_contiguous(dev, page, count))
 		__free_pages(page, get_order(size));
 }
-
-static dma_addr_t xtensa_map_page(struct device *dev, struct page *page,
-				  unsigned long offset, size_t size,
-				  enum dma_data_direction dir,
-				  unsigned long attrs)
-{
-	dma_addr_t dma_handle = page_to_phys(page) + offset;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		xtensa_sync_single_for_device(dev, dma_handle, size, dir);
-
-	return dma_handle;
-}
-
-static void xtensa_unmap_page(struct device *dev, dma_addr_t dma_handle,
-			      size_t size, enum dma_data_direction dir,
-			      unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		xtensa_sync_single_for_cpu(dev, dma_handle, size, dir);
-}
-
-static int xtensa_map_sg(struct device *dev, struct scatterlist *sg,
-			 int nents, enum dma_data_direction dir,
-			 unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		s->dma_address = xtensa_map_page(dev, sg_page(s), s->offset,
-						 s->length, dir, attrs);
-	}
-	return nents;
-}
-
-static void xtensa_unmap_sg(struct device *dev,
-			    struct scatterlist *sg, int nents,
-			    enum dma_data_direction dir,
-			    unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		xtensa_unmap_page(dev, sg_dma_address(s),
-				  sg_dma_len(s), dir, attrs);
-	}
-}
-
-int xtensa_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return 0;
-}
-
-const struct dma_map_ops xtensa_dma_map_ops = {
-	.alloc = xtensa_dma_alloc,
-	.free = xtensa_dma_free,
-	.map_page = xtensa_map_page,
-	.unmap_page = xtensa_unmap_page,
-	.map_sg = xtensa_map_sg,
-	.unmap_sg = xtensa_unmap_sg,
-	.sync_single_for_cpu = xtensa_sync_single_for_cpu,
-	.sync_single_for_device = xtensa_sync_single_for_device,
-	.sync_sg_for_cpu = xtensa_sync_sg_for_cpu,
-	.sync_sg_for_device = xtensa_sync_sg_for_device,
-	.mapping_error = xtensa_dma_mapping_error,
-};
-EXPORT_SYMBOL(xtensa_dma_map_ops);
-- 
2.17.0


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Switch to the generic noncoherent direct mapping implementation.

This removes the previous sync_single_for_device implementation, which
looks bogus given that no syncing is happening in the similar but more
important map_single case.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/sparc/Kconfig                   |   2 +
 arch/sparc/include/asm/dma-mapping.h |   5 +-
 arch/sparc/kernel/ioport.c           | 151 ++-------------------------
 3 files changed, 14 insertions(+), 144 deletions(-)

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 435dbc033afe..0889b4eabf8b 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -48,6 +48,8 @@ config SPARC
 
 config SPARC32
 	def_bool !64BIT
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select DMA_NONCOHERENT_OPS
 	select GENERIC_ATOMIC64
 	select CLZ_TAB
 	select HAVE_UID16
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 12ae33daf52f..e17566376934 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -7,7 +7,6 @@
 #include <linux/dma-debug.h>
 
 extern const struct dma_map_ops *dma_ops;
-extern const struct dma_map_ops pci32_dma_ops;
 
 extern struct bus_type pci_bus_type;
 
@@ -15,11 +14,11 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 #ifdef CONFIG_SPARC_LEON
 	if (sparc_cpu_model == sparc_leon)
-		return &pci32_dma_ops;
+		return &dma_noncoherent_ops;
 #endif
 #if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
 	if (bus == &pci_bus_type)
-		return &pci32_dma_ops;
+		return &dma_noncoherent_ops;
 #endif
 	return dma_ops;
 }
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 3bcef9ce74df..7954512c42e7 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -38,6 +38,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/scatterlist.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/of_device.h>
 
 #include <asm/io.h>
@@ -434,9 +435,8 @@ arch_initcall(sparc_register_ioport);
 /* Allocate and map kernel buffer using consistent mode DMA for a device.
  * hwdev should be valid struct pci_dev pointer for PCI devices.
  */
-static void *pci32_alloc_coherent(struct device *dev, size_t len,
-				  dma_addr_t *pba, gfp_t gfp,
-				  unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t len, dma_addr_t *pba, gfp_t gfp,
+		unsigned long attrs)
 {
 	unsigned long len_total = PAGE_ALIGN(len);
 	void *va;
@@ -488,8 +488,8 @@ static void *pci32_alloc_coherent(struct device *dev, size_t len,
  * References to the memory and mappings associated with cpu_addr/dma_addr
  * past this call are illegal.
  */
-static void pci32_free_coherent(struct device *dev, size_t n, void *p,
-				dma_addr_t ba, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t n, void *p, dma_addr_t ba,
+		unsigned long attrs)
 {
 	struct resource *res;
 
@@ -519,146 +519,15 @@ static void pci32_free_coherent(struct device *dev, size_t n, void *p,
 	free_pages((unsigned long)phys_to_virt(ba), get_order(n));
 }
 
-/*
- * Same as pci_map_single, but with pages.
- */
-static dma_addr_t pci32_map_page(struct device *dev, struct page *page,
-				 unsigned long offset, size_t size,
-				 enum dma_data_direction dir,
-				 unsigned long attrs)
-{
-	/* IIep is write-through, not flushing. */
-	return page_to_phys(page) + offset;
-}
-
-static void pci32_unmap_page(struct device *dev, dma_addr_t ba, size_t size,
-			     enum dma_data_direction dir, unsigned long attrs)
-{
-	if (dir != PCI_DMA_TODEVICE && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		dma_make_coherent(ba, PAGE_ALIGN(size));
-}
-
-/* Map a set of buffers described by scatterlist in streaming
- * mode for DMA.  This is the scatter-gather version of the
- * above pci_map_single interface.  Here the scatter gather list
- * elements are each tagged with the appropriate dma address
- * and length.  They are obtained via sg_dma_{address,length}(SG).
- *
- * NOTE: An implementation may be able to use a smaller number of
- *       DMA address/length pairs than there are SG table elements.
- *       (for example via virtual mapping capabilities)
- *       The routine returns the number of addr/length pairs actually
- *       used, at most nents.
- *
- * Device ownership issues as mentioned above for pci_map_single are
- * the same here.
- */
-static int pci32_map_sg(struct device *device, struct scatterlist *sgl,
-			int nents, enum dma_data_direction dir,
-			unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int n;
-
-	/* IIep is write-through, not flushing. */
-	for_each_sg(sgl, sg, nents, n) {
-		sg->dma_address = sg_phys(sg);
-		sg->dma_length = sg->length;
-	}
-	return nents;
-}
-
-/* Unmap a set of streaming mode DMA translations.
- * Again, cpu read rules concerning calls here are the same as for
- * pci_unmap_single() above.
- */
-static void pci32_unmap_sg(struct device *dev, struct scatterlist *sgl,
-			   int nents, enum dma_data_direction dir,
-			   unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int n;
-
-	if (dir != PCI_DMA_TODEVICE && !(attrs & DMA_ATTR_SKIP_CPU_SYNC)) {
-		for_each_sg(sgl, sg, nents, n) {
-			dma_make_coherent(sg_phys(sg), PAGE_ALIGN(sg->length));
-		}
-	}
-}
+/* IIep is write-through, not flushing on cpu to device transfer. */
 
-/* Make physical memory consistent for a single
- * streaming mode DMA translation before or after a transfer.
- *
- * If you perform a pci_map_single() but wish to interrogate the
- * buffer using the cpu, yet do not wish to teardown the PCI dma
- * mapping, you must call this function before doing so.  At the
- * next point you give the PCI dma address back to the card, you
- * must first perform a pci_dma_sync_for_device, and then the
- * device again owns the buffer.
- */
-static void pci32_sync_single_for_cpu(struct device *dev, dma_addr_t ba,
-				      size_t size, enum dma_data_direction dir)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	if (dir != PCI_DMA_TODEVICE) {
-		dma_make_coherent(ba, PAGE_ALIGN(size));
-	}
-}
-
-static void pci32_sync_single_for_device(struct device *dev, dma_addr_t ba,
-					 size_t size, enum dma_data_direction dir)
-{
-	if (dir != PCI_DMA_TODEVICE) {
-		dma_make_coherent(ba, PAGE_ALIGN(size));
-	}
+	if (dir != PCI_DMA_TODEVICE)
+		dma_make_coherent(paddr, PAGE_ALIGN(size));
 }
 
-/* Make physical memory consistent for a set of streaming
- * mode DMA translations after a transfer.
- *
- * The same as pci_dma_sync_single_* but for a scatter-gather list,
- * same rules and usage.
- */
-static void pci32_sync_sg_for_cpu(struct device *dev, struct scatterlist *sgl,
-				  int nents, enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int n;
-
-	if (dir != PCI_DMA_TODEVICE) {
-		for_each_sg(sgl, sg, nents, n) {
-			dma_make_coherent(sg_phys(sg), PAGE_ALIGN(sg->length));
-		}
-	}
-}
-
-static void pci32_sync_sg_for_device(struct device *device, struct scatterlist *sgl,
-				     int nents, enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int n;
-
-	if (dir != PCI_DMA_TODEVICE) {
-		for_each_sg(sgl, sg, nents, n) {
-			dma_make_coherent(sg_phys(sg), PAGE_ALIGN(sg->length));
-		}
-	}
-}
-
-/* note: leon re-uses pci32_dma_ops */
-const struct dma_map_ops pci32_dma_ops = {
-	.alloc			= pci32_alloc_coherent,
-	.free			= pci32_free_coherent,
-	.map_page		= pci32_map_page,
-	.unmap_page		= pci32_unmap_page,
-	.map_sg			= pci32_map_sg,
-	.unmap_sg		= pci32_unmap_sg,
-	.sync_single_for_cpu	= pci32_sync_single_for_cpu,
-	.sync_single_for_device	= pci32_sync_single_for_device,
-	.sync_sg_for_cpu	= pci32_sync_sg_for_cpu,
-	.sync_sg_for_device	= pci32_sync_sg_for_device,
-};
-EXPORT_SYMBOL(pci32_dma_ops);
-
 const struct dma_map_ops *dma_ops = &sbus_dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
-- 
2.17.0


From - Thu Nov 08 21:41:27 2018
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Subject: [PATCH 20/20] parisc: use generic dma_noncoherent_ops
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Switch to the generic noncoherent direct mapping implementation.

Parisc previously had two different non-coherent dma ops implementation
that just different in the way coherent allocations were handled or not
handled.  The different behavior is not selected at runtime in the
arch_dma_alloc and arch_dma_free routines.  The non-coherent allocation
in the pcx cases now uses the dma_direct helpers that are a little more
sophisticated and used by a lot of other architectures.

Fix sync_single_for_cpu to do skip the cache flush unless the transfer
is to the device to match the more tested unmap_single path which should
have the same cache coherency implications.

This also now consistenly uses flush_kernel_dcache_range for cache
flushing while previously some of the SG based operations used
flush_kernel_vmap_range instead.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/parisc/Kconfig                   |   4 +
 arch/parisc/include/asm/dma-mapping.h |   5 -
 arch/parisc/kernel/pci-dma.c          | 184 +++-----------------------
 arch/parisc/kernel/setup.c            |   8 +-
 arch/parisc/mm/init.c                 |  11 +-
 5 files changed, 32 insertions(+), 180 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 4d8f64d48597..4993c6dc8358 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -188,6 +188,10 @@ config PA20
 config PA11
 	def_bool y
 	depends on PA7000 || PA7100LC || PA7200 || PA7300LC
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select DMA_NONCOHERENT_OPS
+	select DMA_NONCOHERENT_CACHE_SYNC
 
 config PREFETCH
 	def_bool y
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 01e1fc057c83..44a9f97194aa 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -21,11 +21,6 @@
 ** flush/purge and allocate "regular" cacheable pages for everything.
 */
 
-#ifdef CONFIG_PA11
-extern const struct dma_map_ops pcxl_dma_ops;
-extern const struct dma_map_ops pcx_dma_ops;
-#endif
-
 extern const struct dma_map_ops *hppa_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 91bc0cac03a1..02de2eb22d85 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -21,13 +21,12 @@
 #include <linux/init.h>
 #include <linux/gfp.h>
 #include <linux/mm.h>
-#include <linux/pci.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/string.h>
 #include <linux/types.h>
-#include <linux/scatterlist.h>
-#include <linux/export.h>
+#include <linux/dma-direct.h>
+#include <linux/dma-noncoherent.h>
 
 #include <asm/cacheflush.h>
 #include <asm/dma.h>    /* for DMA_CHUNK_SIZE */
@@ -447,178 +446,39 @@ static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
 	free_pages((unsigned long)__va(dma_handle), order);
 }
 
-static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
-		unsigned long offset, size_t size,
-		enum dma_data_direction direction, unsigned long attrs)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	void *addr = page_address(page) + offset;
-	BUG_ON(direction == DMA_NONE);
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		flush_kernel_dcache_range((unsigned long) addr, size);
-
-	return virt_to_phys(addr);
-}
-
-static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
-		size_t size, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return;
-
-	if (direction == DMA_TO_DEVICE)
-		return;
-
-	/*
-	 * For PCI_DMA_FROMDEVICE this flush is not necessary for the
-	 * simple map/unmap case. However, it IS necessary if if
-	 * pci_dma_sync_single_* has been called and the buffer reused.
-	 */
-
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle), size);
-}
-
-static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	int i;
-	struct scatterlist *sg;
-
-	BUG_ON(direction == DMA_NONE);
-
-	for_each_sg(sglist, sg, nents, i) {
-		unsigned long vaddr = (unsigned long)sg_virt(sg);
-
-		sg_dma_address(sg) = (dma_addr_t) virt_to_phys(vaddr);
-		sg_dma_len(sg) = sg->length;
-
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		flush_kernel_dcache_range(vaddr, sg->length);
-	}
-	return nents;
-}
-
-static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	int i;
-	struct scatterlist *sg;
-
-	BUG_ON(direction == DMA_NONE);
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return;
-
-	if (direction == DMA_TO_DEVICE)
-		return;
-
-	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
-
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
-}
-
-static void pa11_dma_sync_single_for_cpu(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
-			size);
+	flush_kernel_dcache_range((unsigned long)phys_to_virt(paddr), size);
 }
 
-static void pa11_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	BUG_ON(direction == DMA_NONE);
-
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
-			size);
-}
-
-static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
-{
-	int i;
-	struct scatterlist *sg;
-
-	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
-
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
+	flush_kernel_dcache_range((unsigned long)phys_to_virt(paddr), size);
 }
 
-static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
-{
-	int i;
-	struct scatterlist *sg;
-
-	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
-
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
-}
-
-static void pa11_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	       enum dma_data_direction direction)
 {
 	flush_kernel_dcache_range((unsigned long)vaddr, size);
 }
 
-const struct dma_map_ops pcxl_dma_ops = {
-	.alloc =		pa11_dma_alloc,
-	.free =			pa11_dma_free,
-	.map_page =		pa11_dma_map_page,
-	.unmap_page =		pa11_dma_unmap_page,
-	.map_sg =		pa11_dma_map_sg,
-	.unmap_sg =		pa11_dma_unmap_sg,
-	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
-	.sync_single_for_device = pa11_dma_sync_single_for_device,
-	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
-	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
-	.cache_sync =		pa11_dma_cache_sync,
-};
-
-static void *pcx_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
-	void *addr;
-
-	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0)
-		return NULL;
-
-	addr = (void *)__get_free_pages(flag, get_order(size));
-	if (addr)
-		*dma_handle = (dma_addr_t)virt_to_phys(addr);
-
-	return addr;
+	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl)
+		return pa11_dma_alloc(dev, size, dma_handle, gfp, attrs);
+	if (attrs & DMA_ATTR_NON_CONSISTENT)
+		return dma_direct_alloc(dev, size, dma_handle, gfp, attrs);
+	return NULL;
 }
 
-static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t iova, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t dma_addr, unsigned long attrs)
 {
-	free_pages((unsigned long)vaddr, get_order(size));
-	return;
+	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl)
+		pa11_dma_free(dev, size, cpu_addr, dma_addr, attrs);
+	else
+		dma_direct_free(dev, size, cpu_addr, dma_addr, attrs);
 }
-
-const struct dma_map_ops pcx_dma_ops = {
-	.alloc =		pcx_dma_alloc,
-	.free =			pcx_dma_free,
-	.map_page =		pa11_dma_map_page,
-	.unmap_page =		pa11_dma_unmap_page,
-	.map_sg =		pa11_dma_map_sg,
-	.unmap_sg =		pa11_dma_unmap_sg,
-	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
-	.sync_single_for_device = pa11_dma_sync_single_for_device,
-	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
-	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
-	.cache_sync =		pa11_dma_cache_sync,
-};
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 8d3a7b80ac42..4e87c35c22b7 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -97,14 +97,12 @@ void __init dma_ops_init(void)
 		panic(	"PA-RISC Linux currently only supports machines that conform to\n"
 			"the PA-RISC 1.1 or 2.0 architecture specification.\n");
 
-	case pcxs:
-	case pcxt:
-		hppa_dma_ops = &pcx_dma_ops;
-		break;
 	case pcxl2:
 		pa7300lc_init();
 	case pcxl: /* falls through */
-		hppa_dma_ops = &pcxl_dma_ops;
+	case pcxs:
+	case pcxt:
+		hppa_dma_ops = &dma_noncoherent_ops;
 		break;
 	default:
 		break;
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index cab32ee824d2..4ad91c28ecbe 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -19,7 +19,6 @@
 #include <linux/gfp.h>
 #include <linux/delay.h>
 #include <linux/init.h>
-#include <linux/pci.h>		/* for hppa_dma_ops and pcxl_dma_ops */
 #include <linux/initrd.h>
 #include <linux/swap.h>
 #include <linux/unistd.h>
@@ -616,17 +615,13 @@ void __init mem_init(void)
 	free_all_bootmem();
 
 #ifdef CONFIG_PA11
-	if (hppa_dma_ops == &pcxl_dma_ops) {
+	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl) {
 		pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
 		parisc_vmalloc_start = SET_MAP_OFFSET(pcxl_dma_start
 						+ PCXL_DMA_MAP_SIZE);
-	} else {
-		pcxl_dma_start = 0;
-		parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
-	}
-#else
-	parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
+	} else
 #endif
+		parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
 
 	mem_init_print_info(NULL);
 
-- 
2.17.0


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Subject: Re: [PATCH 04/20] arm-nommu: use generic dma_noncoherent_ops
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On Fri, May 11, 2018 at 09:59:29AM +0200, Christoph Hellwig wrote:
> Switch to the generic noncoherent direct mapping implementation for
> the nommu dma map implementation.
> 
> Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
> ---
>  arch/arc/Kconfig                |   1 +
>  arch/arm/Kconfig                |   4 +
>  arch/arm/mm/dma-mapping-nommu.c | 139 +++++---------------------------
>  3 files changed, 23 insertions(+), 121 deletions(-)
> 
> diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
> index 89d47eac18b2..3a492a9aeaad 100644
> --- a/arch/arc/Kconfig
> +++ b/arch/arc/Kconfig
> @@ -9,6 +9,7 @@
>  config ARC
>  	def_bool y
>  	select ARC_TIMERS
> +	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
>  	select ARCH_HAS_SYNC_DMA_FOR_CPU
>  	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
>  	select ARCH_HAS_SG_CHAIN
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index c43f5bb55ac8..76ddd0064f87 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -12,6 +12,8 @@ config ARM
>  	select ARCH_HAS_PHYS_TO_DMA
>  	select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
>  	select ARCH_HAS_STRICT_MODULE_RWX if MMU
> +	select ARCH_HAS_SYNC_DMA_FOR_CPU if !MMU
> +	select ARCH_HAS_SYNC_DMA_FOR_DEVICE if !MMU
>  	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
>  	select ARCH_HAVE_CUSTOM_GPIO_H
>  	select ARCH_HAS_GCOV_PROFILE_ALL
> @@ -27,6 +29,8 @@ config ARM
>  	select CPU_PM if (SUSPEND || CPU_IDLE)
>  	select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
>  	select DMA_DIRECT_OPS if !MMU
> +	select DMA_NONCOHERENT_OPS if !MMU
> +	select DMA_NONCOHERENT_MMAP if !MMU
>  	select EDAC_SUPPORT
>  	select EDAC_ATOMIC_SCRUB
>  	select GENERIC_ALLOCATOR
> diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
> index f448a0663b10..a74ed6632982 100644
> --- a/arch/arm/mm/dma-mapping-nommu.c
> +++ b/arch/arm/mm/dma-mapping-nommu.c
> @@ -12,6 +12,7 @@
>  #include <linux/export.h>
>  #include <linux/mm.h>
>  #include <linux/dma-direct.h>
> +#include <linux/dma-noncoherent.h>
>  #include <linux/scatterlist.h>
>  
>  #include <asm/cachetype.h>
> @@ -26,18 +27,16 @@
>   *   - MMU/MPU is off
>   *   - cpu is v7m w/o cache support
>   *   - device is coherent
> - *  otherwise arm_nommu_dma_ops is used.
> + *  otherwise dma_noncoherent_ops is used.
>   *
> - *  arm_nommu_dma_ops rely on consistent DMA memory (please, refer to
> + *  dma_noncoherent_ops rely on consistent DMA memory (please, refer to
>   *  [1] on how to declare such memory).
>   *
>   *  [1] Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
>   */
>  
> -static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
> -				 dma_addr_t *dma_handle, gfp_t gfp,
> -				 unsigned long attrs)
> -
> +void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
> +		gfp_t gfp, unsigned long attrs)
>  {
>  	void *ret;
>  
> @@ -65,9 +64,8 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
>  	return ret;
>  }
>  
> -static void arm_nommu_dma_free(struct device *dev, size_t size,
> -			       void *cpu_addr, dma_addr_t dma_addr,
> -			       unsigned long attrs)
> +void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
> +		dma_addr_t dma_addr, unsigned long attrs)
>  {
>  	if (attrs & DMA_ATTR_NON_CONSISTENT) {
>  		dma_direct_free(dev, size, cpu_addr, dma_addr, attrs);
> @@ -81,9 +79,9 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
>  	return;
>  }
>  
> -static int arm_nommu_dma_mmap(struct device *dev, struct vm_area_struct *vma,
> -			      void *cpu_addr, dma_addr_t dma_addr, size_t size,
> -			      unsigned long attrs)
> +int arch_dma_mmap(struct device *dev, struct vm_area_struct *vma,
> +		void *cpu_addr, dma_addr_t dma_addr, size_t size,
> +		unsigned long attrs)
>  {
>  	int ret;
>  
> @@ -93,9 +91,8 @@ static int arm_nommu_dma_mmap(struct device *dev, struct vm_area_struct *vma,
>  	return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size);
>  }
>  
> -
> -static void __dma_page_cpu_to_dev(phys_addr_t paddr, size_t size,
> -				  enum dma_data_direction dir)
> +void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
> +		size_t size, enum dma_data_direction dir)

Please no.  There is a lot of history of these (__dma_page_cpu_to_dev etc)
functions being abused by out of tree drivers, because they think they
know better.  This is stopped by making them static and ensuring that
drivers have no access to these functions.

Please do not re-expose these to the global kernel.

While it may make things easier for a cross-architecture point of view,
it makes it a lot easier for people to abuse these private APIs.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up
According to speedtest.net: 8.21Mbps down 510kbps up

From - Thu Nov 08 21:41:28 2018
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From: Alexey Brodkin <Alexey.Brodkin-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH 03/20] arc: use generic dma_noncoherent_ops
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Hi Christoph,

On Fri, 2018-05-11 at 09:59 +0200, Christoph Hellwig wrote:
> Switch to the generic noncoherent direct mapping implementation.
> 
> Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
> ---
>  arch/arc/Kconfig                   |   4 +
>  arch/arc/include/asm/Kbuild        |   1 +
>  arch/arc/include/asm/dma-mapping.h |  21 -----
>  arch/arc/mm/dma.c                  | 141 +++--------------------------
>  4 files changed, 19 insertions(+), 148 deletions(-)
>  delete mode 100644 arch/arc/include/asm/dma-mapping.h

Sorry I didn't try your proposed fix earlier - was away for a couple of days.

But that newer version with fixed lib/dma-noncoherent.c still doesn't work on ARC.

USB ECHI controller fails like that:
------------------------->8-------------------------
usb 1-1: new high-speed USB device number 2 using ehci-platform
usb 1-1: can't set config #1, error -32
------------------------->8-------------------------

Again with entire series reverted USB starts to work.
Let's wait for other arches previously affected to update on their status.

-Alexey

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On 11/05/2018 08:59, Christoph Hellwig wrote:
> Switch to the generic noncoherent direct mapping implementation for
> the nommu dma map implementation.
>
> Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
> ---
>  arch/arc/Kconfig                |   1 +
>  arch/arm/Kconfig                |   4 +
>  arch/arm/mm/dma-mapping-nommu.c | 139 +++++---------------------------
>  3 files changed, 23 insertions(+), 121 deletions(-)
>
> diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
> index 89d47eac18b2..3a492a9aeaad 100644
> --- a/arch/arc/Kconfig
> +++ b/arch/arc/Kconfig
> @@ -9,6 +9,7 @@
>  config ARC
>  	def_bool y
>  	select ARC_TIMERS
> +	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
>  	select ARCH_HAS_SYNC_DMA_FOR_CPU
>  	select ARCH_HAS_SYNC_DMA_FOR_DEVICE

I guess that this arc change is here by accident, no? And isn't 
ARCH_HAS_SYNC_DMA_FOR_DEVICE already selected (by 3/20)?

>  	select ARCH_HAS_SG_CHAIN
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index c43f5bb55ac8..76ddd0064f87 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig


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On 11.05.2018 09:59, Christoph Hellwig wrote:
> this series continues consolidating the dma-mapping code, with a focus
> on architectures that do not (always) provide cache coherence for DMA.
> Three architectures (arm, mips and powerpc) are still left to be
> converted later due to complexity of their dma ops selection.
> 
> The dma-noncoherent ops calls the dma-direct ops for the actual
> translation of streaming mappins and allow the architecture to provide
> any cache flushing required for cpu to device and/or device to cpu
> ownership transfers.  The dma coherent allocator is for now still left
> entirely to architecture supplied implementations due the amount of
> variations.  Hopefully we can do some consolidation for them later on
> as well.
> 
> A lot of architectures are currently doing very questionable things
> in their dma mapping routines, which are documented in the changelogs
> for each patch.  Please review them very careful and correct me on
> incorrect assumptions.
> 
> Because this series sits on top of two previously submitted series
> a git tree might be useful to actually test it.  It is provided here:
> 
>     git://git.infradead.org/users/hch/misc.git generic-dma-noncoherent
> 
> Gitweb:
> 
>     http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/generic-dma-noncoherent
> 
> Changes since RFC:
>  - fix a typo accidentally disabling the device to cpu transfer sync
>  - fixed a few compile failures


I tested it again on parisc (this time again on top of git head) and it still breaks
the same way as I reported in my mail on April 21st: the lasi82956 network driver works
unreliable. NIC gets IP, but ping doesn't work.
See drivers/net/ethernet/i825xx/lasi_82596.c, it uses dma*sync() functions.

See comment in James mail from April 21st too:
-> you just made every 32 bit parisc system unnecessarily use non-coherent.

Helge

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Subject: Re: [Linux-c6x-dev] [PATCH 05/20] c6x: use generic dma_noncoherent_ops
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On Fri, 2018-05-11 at 09:59 +0200, Christoph Hellwig wrote:
> Switch to the generic noncoherent direct mapping implementation.
> 
> Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
> ---
>  arch/c6x/Kconfig                   |   3 +
>  arch/c6x/include/asm/Kbuild        |   1 +
>  arch/c6x/include/asm/dma-mapping.h |  28 ------
>  arch/c6x/include/asm/setup.h       |   2 +
>  arch/c6x/kernel/Makefile           |   2 +-
>  arch/c6x/kernel/dma.c              | 138 -----------------------------
>  arch/c6x/mm/dma-coherent.c         |  40 ++++++++-
>  7 files changed, 44 insertions(+), 170 deletions(-)
>  delete mode 100644 arch/c6x/include/asm/dma-mapping.h
>  delete mode 100644 arch/c6x/kernel/dma.c
> 
> diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
> index 8c088b96e372..bf59855628ac 100644
> --- a/arch/c6x/Kconfig
> +++ b/arch/c6x/Kconfig
> @@ -6,7 +6,10 @@
>  
>  config C6X
>  	def_bool y
> +	select ARCH_HAS_SYNC_DMA_FOR_CPU
> +	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
>  	select CLKDEV_LOOKUP
> +	select DMA_NONCOHERENT_OPS
>  	select GENERIC_ATOMIC64
>  	select GENERIC_IRQ_SHOW
>  	select HAVE_ARCH_TRACEHOOK
> diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
> index fd4c840de837..434600e47662 100644
> --- a/arch/c6x/include/asm/Kbuild
> +++ b/arch/c6x/include/asm/Kbuild
> @@ -5,6 +5,7 @@ generic-y += current.h
>  generic-y += device.h
>  generic-y += div64.h
>  generic-y += dma.h
> +generic-y += dma-mapping.h
>  generic-y += emergency-restart.h
>  generic-y += exec.h
>  generic-y += extable.h
> diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
> deleted file mode 100644
> index 05daf1038111..000000000000
> --- a/arch/c6x/include/asm/dma-mapping.h
> +++ /dev/null
> @@ -1,28 +0,0 @@
> -/*
> - *  Port on Texas Instruments TMS320C6x architecture
> - *
> - *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
> - *  Author: Aurelien Jacquiot <aurelien.jacquiot-l0cyMroinI0@public.gmane.org>
> - *
> - *  This program is free software; you can redistribute it and/or modify
> - *  it under the terms of the GNU General Public License version 2 as
> - *  published by the Free Software Foundation.
> - *
> - */
> -#ifndef _ASM_C6X_DMA_MAPPING_H
> -#define _ASM_C6X_DMA_MAPPING_H
> -
> -extern const struct dma_map_ops c6x_dma_ops;
> -
> -static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
> -{
> -	return &c6x_dma_ops;
> -}
> -
> -extern void coherent_mem_init(u32 start, u32 size);
> -void *c6x_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
> -		gfp_t gfp, unsigned long attrs);
> -void c6x_dma_free(struct device *dev, size_t size, void *vaddr,
> -		dma_addr_t dma_handle, unsigned long attrs);
> -
> -#endif	/* _ASM_C6X_DMA_MAPPING_H */
> diff --git a/arch/c6x/include/asm/setup.h b/arch/c6x/include/asm/setup.h
> index 852afb209afb..350f34debb19 100644
> --- a/arch/c6x/include/asm/setup.h
> +++ b/arch/c6x/include/asm/setup.h
> @@ -28,5 +28,7 @@ extern unsigned char c6x_fuse_mac[6];
>  extern void machine_init(unsigned long dt_ptr);
>  extern void time_init(void);
>  
> +extern void coherent_mem_init(u32 start, u32 size);
> +
>  #endif /* !__ASSEMBLY__ */
>  #endif /* _ASM_C6X_SETUP_H */
> diff --git a/arch/c6x/kernel/Makefile b/arch/c6x/kernel/Makefile
> index 02f340d7b8fe..fbe74174de87 100644
> --- a/arch/c6x/kernel/Makefile
> +++ b/arch/c6x/kernel/Makefile
> @@ -8,6 +8,6 @@ extra-y := head.o vmlinux.lds
>  obj-y := process.o traps.o irq.o signal.o ptrace.o
>  obj-y += setup.o sys_c6x.o time.o devicetree.o
>  obj-y += switch_to.o entry.o vectors.o c6x_ksyms.o
> -obj-y += soc.o dma.o
> +obj-y += soc.o
>  
>  obj-$(CONFIG_MODULES)           += module.o
> diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
> deleted file mode 100644
> index 31e1a9ec3a9c..000000000000
> --- a/arch/c6x/kernel/dma.c
> +++ /dev/null
> @@ -1,138 +0,0 @@
> -/*
> - *  Copyright (C) 2011 Texas Instruments Incorporated
> - *  Author: Mark Salter <msalter-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> - *
> - *  This program is free software; you can redistribute it and/or modify
> - *  it under the terms of the GNU General Public License version 2 as
> - *  published by the Free Software Foundation.
> - */
> -#include <linux/module.h>
> -#include <linux/dma-mapping.h>
> -#include <linux/mm.h>
> -#include <linux/mm_types.h>
> -#include <linux/scatterlist.h>
> -
> -#include <asm/cacheflush.h>
> -
> -static void c6x_dma_sync(dma_addr_t handle, size_t size,
> -			 enum dma_data_direction dir)
> -{
> -	unsigned long paddr = handle;
> -
> -	BUG_ON(!valid_dma_direction(dir));
> -
> -	switch (dir) {
> -	case DMA_FROM_DEVICE:
> -		L2_cache_block_invalidate(paddr, paddr + size);
> -		break;
> -	case DMA_TO_DEVICE:
> -		L2_cache_block_writeback(paddr, paddr + size);
> -		break;
> -	case DMA_BIDIRECTIONAL:
> -		L2_cache_block_writeback_invalidate(paddr, paddr + size);
> -		break;
> -	default:
> -		break;
> -	}
> -}
> -
> -static dma_addr_t c6x_dma_map_page(struct device *dev, struct page *page,
> -		unsigned long offset, size_t size, enum dma_data_direction dir,
> -		unsigned long attrs)
> -{
> -	dma_addr_t handle = virt_to_phys(page_address(page) + offset);
> -
> -	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> -		c6x_dma_sync(handle, size, dir);
> -
> -	return handle;
> -}
> -
> -static void c6x_dma_unmap_page(struct device *dev, dma_addr_t handle,
> -		size_t size, enum dma_data_direction dir, unsigned long attrs)
> -{
> -	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> -		c6x_dma_sync(handle, size, dir);
> -}
> -
> -static int c6x_dma_map_sg(struct device *dev, struct scatterlist *sglist,
> -		int nents, enum dma_data_direction dir, unsigned long attrs)
> -{
> -	struct scatterlist *sg;
> -	int i;
> -
> -	for_each_sg(sglist, sg, nents, i) {
> -		sg->dma_address = sg_phys(sg);
> -		if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> -			c6x_dma_sync(sg->dma_address, sg->length, dir);
> -	}
> -
> -	return nents;
> -}
> -
> -static void c6x_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
> -		  int nents, enum dma_data_direction dir, unsigned long attrs)
> -{
> -	struct scatterlist *sg;
> -	int i;
> -
> -	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
> -		return;
> -
> -	for_each_sg(sglist, sg, nents, i)
> -		c6x_dma_sync(sg_dma_address(sg), sg->length, dir);
> -}
> -
> -static void c6x_dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
> -		size_t size, enum dma_data_direction dir)
> -{
> -	c6x_dma_sync(handle, size, dir);
> -
> -}
> -
> -static void c6x_dma_sync_single_for_device(struct device *dev,
> -		dma_addr_t handle, size_t size, enum dma_data_direction dir)
> -{
> -	c6x_dma_sync(handle, size, dir);
> -
> -}
> -
> -static void c6x_dma_sync_sg_for_cpu(struct device *dev,
> -		struct scatterlist *sglist, int nents,
> -		enum dma_data_direction dir)
> -{
> -	struct scatterlist *sg;
> -	int i;
> -
> -	for_each_sg(sglist, sg, nents, i)
> -		c6x_dma_sync_single_for_cpu(dev, sg_dma_address(sg),
> -					sg->length, dir);
> -
> -}
> -
> -static void c6x_dma_sync_sg_for_device(struct device *dev,
> -		struct scatterlist *sglist, int nents,
> -		enum dma_data_direction dir)
> -{
> -	struct scatterlist *sg;
> -	int i;
> -
> -	for_each_sg(sglist, sg, nents, i)
> -		c6x_dma_sync_single_for_device(dev, sg_dma_address(sg),
> -					   sg->length, dir);
> -
> -}
> -
> -const struct dma_map_ops c6x_dma_ops = {
> -	.alloc			= c6x_dma_alloc,
> -	.free			= c6x_dma_free,
> -	.map_page		= c6x_dma_map_page,
> -	.unmap_page		= c6x_dma_unmap_page,
> -	.map_sg			= c6x_dma_map_sg,
> -	.unmap_sg		= c6x_dma_unmap_sg,
> -	.sync_single_for_device	= c6x_dma_sync_single_for_device,
> -	.sync_single_for_cpu	= c6x_dma_sync_single_for_cpu,
> -	.sync_sg_for_device	= c6x_dma_sync_sg_for_device,
> -	.sync_sg_for_cpu	= c6x_dma_sync_sg_for_cpu,
> -};
> -EXPORT_SYMBOL(c6x_dma_ops);
> diff --git a/arch/c6x/mm/dma-coherent.c b/arch/c6x/mm/dma-coherent.c
> index 95e38ad27c69..d0a8e0c4b27e 100644
> --- a/arch/c6x/mm/dma-coherent.c
> +++ b/arch/c6x/mm/dma-coherent.c
> @@ -19,10 +19,12 @@
>  #include <linux/bitops.h>
>  #include <linux/module.h>
>  #include <linux/interrupt.h>
> -#include <linux/dma-mapping.h>
> +#include <linux/dma-noncoherent.h>
>  #include <linux/memblock.h>
>  
> +#include <asm/cacheflush.h>
>  #include <asm/page.h>
> +#include <asm/setup.h>
>  
>  /*
>   * DMA coherent memory management, can be redefined using the memdma=
> @@ -73,7 +75,7 @@ static void __free_dma_pages(u32 addr, int order)
>   * Allocate DMA coherent memory space and return both the kernel
>   * virtual and DMA address for that space.
>   */
> -void *c6x_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
> +void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
>  		gfp_t gfp, unsigned long attrs)
>  {
>  	u32 paddr;
> @@ -98,7 +100,7 @@ void *c6x_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
>  /*
>   * Free DMA coherent memory as defined by the above mapping.
>   */
> -void c6x_dma_free(struct device *dev, size_t size, void *vaddr,
> +void arch_dma_free(struct device *dev, size_t size, void *vaddr,
>  		dma_addr_t dma_handle, unsigned long attrs)
>  {
>  	int order;
> @@ -139,3 +141,35 @@ void __init coherent_mem_init(phys_addr_t start, u32 size)
>  	dma_bitmap = phys_to_virt(bitmap_phys);
>  	memset(dma_bitmap, 0, dma_pages * PAGE_SIZE);
>  }
> +
> +static void c6x_dma_sync(struct device *dev, phys_addr_t paddr, size_t size,
> +		enum dma_data_direction dir)
> +{
> +	BUG_ON(!valid_dma_direction(dir));
> +
> +	switch (dir) {
> +	case DMA_FROM_DEVICE:
> +		L2_cache_block_invalidate(paddr, paddr + size);
> +		break;
> +	case DMA_TO_DEVICE:
> +		L2_cache_block_writeback(paddr, paddr + size);
> +		break;
> +	case DMA_BIDIRECTIONAL:
> +		L2_cache_block_writeback_invalidate(paddr, paddr + size);
> +		break;
> +	default:
> +		break;
> +	}
> +}
> +
> +void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
> +		size_t size, enum dma_data_direction dir)
> +{
> +	return c6x_dma_sync(dev, paddr, size, dir);
> +}
> +
> +void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
> +		size_t size, enum dma_data_direction dir)
> +{
> +	return c6x_dma_sync(dev, paddr, size, dir);
> +}
Acked-by: Mark Salter <msalter-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>


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Subject: [PATCH 4.9 27/33] futex: Remove duplicated code and fix undefined
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4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jiri Slaby <jslaby@suse.cz>

commit 30d6e0a4190d37740e9447e4e4815f06992dd8c3 upstream.

There is code duplicated over all architecture's headers for
futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
and comparison of the result.

Remove this duplication and leave up to the arches only the needed
assembly which is now in arch_futex_atomic_op_inuser.

This effectively distributes the Will Deacon's arm64 fix for undefined
behaviour reported by UBSAN to all architectures. The fix was done in
commit 5f16a046f8e1 (arm64: futex: Fix undefined behaviour with
FUTEX_OP_OPARG_SHIFT usage). Look there for an example dump.

And as suggested by Thomas, check for negative oparg too, because it was
also reported to cause undefined behaviour report.

Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
remove pointless access_ok() checks") as access_ok there returns true.
We introduce it back to the helper for the sake of simplicity (it gets
optimized away anyway).

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390]
Acked-by: Chris Metcalf <cmetcalf@mellanox.com> [for tile]
Reviewed-by: Darren Hart (VMware) <dvhart@infradead.org>
Reviewed-by: Will Deacon <will.deacon@arm.com> [core/arm64]
Cc: linux-mips@linux-mips.org
Cc: Rich Felker <dalias@libc.org>
Cc: linux-ia64@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: peterz@infradead.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: sparclinux@vger.kernel.org
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux-s390@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: linux-hexagon@vger.kernel.org
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: linux-snps-arc@lists.infradead.org
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-xtensa@linux-xtensa.org
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: openrisc@lists.librecores.org
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Stafford Horne <shorne@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Richard Henderson <rth@twiddle.net>
Cc: Chris Zankel <chris@zankel.net>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-parisc@vger.kernel.org
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: linux-alpha@vger.kernel.org
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: "David S. Miller" <davem@davemloft.net>
Link: http://lkml.kernel.org/r/20170824073105.3901-1-jslaby@suse.cz
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/alpha/include/asm/futex.h      |   26 +++---------------
 arch/arc/include/asm/futex.h        |   40 +++-------------------------
 arch/arm/include/asm/futex.h        |   26 ++----------------
 arch/arm64/include/asm/futex.h      |   27 ++-----------------
 arch/frv/include/asm/futex.h        |    3 +-
 arch/frv/kernel/futex.c             |   27 ++-----------------
 arch/hexagon/include/asm/futex.h    |   38 ++-------------------------
 arch/ia64/include/asm/futex.h       |   25 ++----------------
 arch/microblaze/include/asm/futex.h |   38 ++-------------------------
 arch/mips/include/asm/futex.h       |   25 ++----------------
 arch/parisc/include/asm/futex.h     |   26 ++----------------
 arch/powerpc/include/asm/futex.h    |   26 +++---------------
 arch/s390/include/asm/futex.h       |   23 +++-------------
 arch/sh/include/asm/futex.h         |   26 ++----------------
 arch/sparc/include/asm/futex_64.h   |   26 +++---------------
 arch/tile/include/asm/futex.h       |   40 +++-------------------------
 arch/x86/include/asm/futex.h        |   40 +++-------------------------
 arch/xtensa/include/asm/futex.h     |   27 +++----------------
 include/asm-generic/futex.h         |   50 ++++++------------------------------
 kernel/futex.c                      |   39 ++++++++++++++++++++++++++++
 20 files changed, 126 insertions(+), 472 deletions(-)

--- a/arch/alpha/include/asm/futex.h
+++ b/arch/alpha/include/asm/futex.h
@@ -29,18 +29,10 @@
 	:	"r" (uaddr), "r"(oparg)				\
 	:	"memory")
 
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -66,17 +58,9 @@ static inline int futex_atomic_op_inuser
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/arc/include/asm/futex.h
+++ b/arch/arc/include/asm/futex.h
@@ -73,20 +73,11 @@
 
 #endif
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
-
 #ifndef CONFIG_ARC_HAS_LLSC
 	preempt_disable();	/* to guarantee atomic r-m-w of futex op */
 #endif
@@ -118,30 +109,9 @@ static inline int futex_atomic_op_inuser
 	preempt_enable();
 #endif
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/arm/include/asm/futex.h
+++ b/arch/arm/include/asm/futex.h
@@ -128,20 +128,10 @@ futex_atomic_cmpxchg_inatomic(u32 *uval,
 #endif /* !SMP */
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 #ifndef CONFIG_SMP
 	preempt_disable();
 #endif
@@ -172,17 +162,9 @@ futex_atomic_op_inuser (int encoded_op,
 	preempt_enable();
 #endif
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/arm64/include/asm/futex.h
+++ b/arch/arm64/include/asm/futex.h
@@ -51,20 +51,9 @@
 	: "memory")
 
 static inline int
-futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *_uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (int)(encoded_op << 8) >> 20;
-	int cmparg = (int)(encoded_op << 20) >> 20;
 	int oldval = 0, ret, tmp;
-	u32 __user *uaddr = __uaccess_mask_ptr(_uaddr);
-
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1U << (oparg & 0x1f);
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -95,17 +84,9 @@ futex_atomic_op_inuser(unsigned int enco
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/frv/include/asm/futex.h
+++ b/arch/frv/include/asm/futex.h
@@ -7,7 +7,8 @@
 #include <asm/errno.h>
 #include <asm/uaccess.h>
 
-extern int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr);
+extern int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr);
 
 static inline int
 futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
--- a/arch/frv/kernel/futex.c
+++ b/arch/frv/kernel/futex.c
@@ -186,20 +186,10 @@ static inline int atomic_futex_op_xchg_x
 /*
  * do the futex operations
  */
-int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -225,18 +215,9 @@ int futex_atomic_op_inuser(int encoded_o
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS; break;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
 
 	return ret;
 
-} /* end futex_atomic_op_inuser() */
+} /* end arch_futex_atomic_op_inuser() */
--- a/arch/hexagon/include/asm/futex.h
+++ b/arch/hexagon/include/asm/futex.h
@@ -31,18 +31,9 @@
 
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -72,30 +63,9 @@ futex_atomic_op_inuser(int encoded_op, i
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/ia64/include/asm/futex.h
+++ b/arch/ia64/include/asm/futex.h
@@ -45,18 +45,9 @@ do {									\
 } while (0)
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -84,17 +75,9 @@ futex_atomic_op_inuser (int encoded_op,
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/microblaze/include/asm/futex.h
+++ b/arch/microblaze/include/asm/futex.h
@@ -29,18 +29,9 @@
 })
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -66,30 +57,9 @@ futex_atomic_op_inuser(int encoded_op, u
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/mips/include/asm/futex.h
+++ b/arch/mips/include/asm/futex.h
@@ -83,18 +83,9 @@
 }
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -125,17 +116,9 @@ futex_atomic_op_inuser(int encoded_op, u
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -32,22 +32,12 @@ _futex_spin_unlock_irqrestore(u32 __user
 }
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
 	unsigned long int flags;
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval, ret;
 	u32 tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(*uaddr)))
-		return -EFAULT;
-
 	_futex_spin_lock_irqsave(uaddr, &flags);
 	pagefault_disable();
 
@@ -85,17 +75,9 @@ out_pagefault_enable:
 	pagefault_enable();
 	_futex_spin_unlock_irqrestore(uaddr, &flags);
 
-	if (ret == 0) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/powerpc/include/asm/futex.h
+++ b/arch/powerpc/include/asm/futex.h
@@ -31,18 +31,10 @@
 	: "b" (uaddr), "i" (-EFAULT), "r" (oparg) \
 	: "cr0", "memory")
 
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -68,17 +60,9 @@ static inline int futex_atomic_op_inuser
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/s390/include/asm/futex.h
+++ b/arch/s390/include/asm/futex.h
@@ -21,17 +21,12 @@
 		: "0" (-EFAULT), "d" (oparg), "a" (uaddr),		\
 		  "m" (*uaddr) : "cc");
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, newval, ret;
 
 	load_kernel_asce();
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
 
 	pagefault_disable();
 	switch (op) {
@@ -60,17 +55,9 @@ static inline int futex_atomic_op_inuser
 	}
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/sh/include/asm/futex.h
+++ b/arch/sh/include/asm/futex.h
@@ -27,21 +27,12 @@ futex_atomic_cmpxchg_inatomic(u32 *uval,
 	return atomic_futex_op_cmpxchg_inatomic(uval, uaddr, oldval, newval);
 }
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	u32 oparg = (encoded_op << 8) >> 20;
-	u32 cmparg = (encoded_op << 20) >> 20;
 	u32 oldval, newval, prev;
 	int ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	do {
@@ -80,17 +71,8 @@ static inline int futex_atomic_op_inuser
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = ((int)oldval < (int)cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = ((int)oldval >= (int)cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = ((int)oldval <= (int)cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = ((int)oldval > (int)cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
 
 	return ret;
 }
--- a/arch/sparc/include/asm/futex_64.h
+++ b/arch/sparc/include/asm/futex_64.h
@@ -29,22 +29,14 @@
 	: "r" (uaddr), "r" (oparg), "i" (-EFAULT)	\
 	: "memory")
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tem;
 
-	if (unlikely(!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))))
-		return -EFAULT;
 	if (unlikely((((unsigned long) uaddr) & 0x3UL)))
 		return -EINVAL;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -69,17 +61,9 @@ static inline int futex_atomic_op_inuser
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/tile/include/asm/futex.h
+++ b/arch/tile/include/asm/futex.h
@@ -106,12 +106,9 @@
 	lock = __atomic_hashed_lock((int __force *)uaddr)
 #endif
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int uninitialized_var(val), ret;
 
 	__futex_prolog();
@@ -119,12 +116,6 @@ static inline int futex_atomic_op_inuser
 	/* The 32-bit futex code makes this assumption, so validate it here. */
 	BUILD_BUG_ON(sizeof(atomic_t) != sizeof(int));
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 	switch (op) {
 	case FUTEX_OP_SET:
@@ -148,30 +139,9 @@ static inline int futex_atomic_op_inuser
 	}
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (val == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (val != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (val < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (val >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (val <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (val > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = val;
+
 	return ret;
 }
 
--- a/arch/x86/include/asm/futex.h
+++ b/arch/x86/include/asm/futex.h
@@ -41,20 +41,11 @@
 		       "+m" (*uaddr), "=&r" (tem)		\
 		     : "r" (oparg), "i" (-EFAULT), "1" (0))
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tem;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -80,30 +71,9 @@ static inline int futex_atomic_op_inuser
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/xtensa/include/asm/futex.h
+++ b/arch/xtensa/include/asm/futex.h
@@ -44,18 +44,10 @@
 	: "r" (uaddr), "I" (-EFAULT), "r" (oparg)	\
 	: "memory")
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 #if !XCHAL_HAVE_S32C1I
 	return -ENOSYS;
@@ -89,19 +81,10 @@ static inline int futex_atomic_op_inuser
 
 	pagefault_enable();
 
-	if (ret)
-		return ret;
-
-	switch (cmp) {
-	case FUTEX_OP_CMP_EQ: return (oldval == cmparg);
-	case FUTEX_OP_CMP_NE: return (oldval != cmparg);
-	case FUTEX_OP_CMP_LT: return (oldval < cmparg);
-	case FUTEX_OP_CMP_GE: return (oldval >= cmparg);
-	case FUTEX_OP_CMP_LE: return (oldval <= cmparg);
-	case FUTEX_OP_CMP_GT: return (oldval > cmparg);
-	}
+	if (!ret)
+		*oval = oldval;
 
-	return -ENOSYS;
+	return ret;
 }
 
 static inline int
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -13,7 +13,7 @@
  */
 
 /**
- * futex_atomic_op_inuser() - Atomic arithmetic operation with constant
+ * arch_futex_atomic_op_inuser() - Atomic arithmetic operation with constant
  *			  argument and comparison of the previous
  *			  futex value with another constant.
  *
@@ -25,18 +25,11 @@
  * <0 - On error
  */
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval, ret;
 	u32 tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
 	preempt_disable();
 	pagefault_disable();
 
@@ -74,17 +67,9 @@ out_pagefault_enable:
 	pagefault_enable();
 	preempt_enable();
 
-	if (ret == 0) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (ret == 0)
+		*oval = oldval;
+
 	return ret;
 }
 
@@ -126,18 +111,9 @@ futex_atomic_cmpxchg_inatomic(u32 *uval,
 
 #else
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -153,17 +129,9 @@ futex_atomic_op_inuser (int encoded_op,
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1458,6 +1458,45 @@ out:
 	return ret;
 }
 
+static int futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
+{
+	unsigned int op =	  (encoded_op & 0x70000000) >> 28;
+	unsigned int cmp =	  (encoded_op & 0x0f000000) >> 24;
+	int oparg = sign_extend32((encoded_op & 0x00fff000) >> 12, 12);
+	int cmparg = sign_extend32(encoded_op & 0x00000fff, 12);
+	int oldval, ret;
+
+	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) {
+		if (oparg < 0 || oparg > 31)
+			return -EINVAL;
+		oparg = 1 << oparg;
+	}
+
+	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+		return -EFAULT;
+
+	ret = arch_futex_atomic_op_inuser(op, oparg, &oldval, uaddr);
+	if (ret)
+		return ret;
+
+	switch (cmp) {
+	case FUTEX_OP_CMP_EQ:
+		return oldval == cmparg;
+	case FUTEX_OP_CMP_NE:
+		return oldval != cmparg;
+	case FUTEX_OP_CMP_LT:
+		return oldval < cmparg;
+	case FUTEX_OP_CMP_GE:
+		return oldval >= cmparg;
+	case FUTEX_OP_CMP_LE:
+		return oldval <= cmparg;
+	case FUTEX_OP_CMP_GT:
+		return oldval > cmparg;
+	default:
+		return -ENOSYS;
+	}
+}
+
 /*
  * Wake up all waiters hashed on the physical page that is mapped
  * to this virtual address:




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Subject: Re: [PATCH 4.9 27/33] futex: Remove duplicated code and fix undefined
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Date: Fri, 18 May 2018 10:30:24 +0200
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On 05/18/2018, 10:16 AM, Greg Kroah-Hartman wrote:
> 4.9-stable review patch.  If anyone has any objections, please let me know.
> 
> ------------------
> 
> From: Jiri Slaby <jslaby@suse.cz>
> 
> commit 30d6e0a4190d37740e9447e4e4815f06992dd8c3 upstream.
...
> --- a/kernel/futex.c
> +++ b/kernel/futex.c
> @@ -1458,6 +1458,45 @@ out:
>  	return ret;
>  }
>  
> +static int futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
> +{
> +	unsigned int op =	  (encoded_op & 0x70000000) >> 28;
> +	unsigned int cmp =	  (encoded_op & 0x0f000000) >> 24;
> +	int oparg = sign_extend32((encoded_op & 0x00fff000) >> 12, 12);
> +	int cmparg = sign_extend32(encoded_op & 0x00000fff, 12);

12 is wrong here – wherever you apply this, you need also a follow-up fix:
commit d70ef22892ed6c066e51e118b225923c9b74af34
Author: Jiri Slaby <jslaby@suse.cz>
Date:   Thu Nov 30 15:35:44 2017 +0100

    futex: futex_wake_op, fix sign_extend32 sign bits

thanks,
-- 
js
suse labs


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Subject: Re: [PATCH 4.9 27/33] futex: Remove duplicated code and fix
 undefined behaviour
Date: Fri, 18 May 2018 11:01:41 +0200
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To: Jiri Slaby <jslaby@suse.cz>
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On Fri, May 18, 2018 at 10:30:24AM +0200, Jiri Slaby wrote:
> On 05/18/2018, 10:16 AM, Greg Kroah-Hartman wrote:
> > 4.9-stable review patch.  If anyone has any objections, please let me know.
> > 
> > ------------------
> > 
> > From: Jiri Slaby <jslaby@suse.cz>
> > 
> > commit 30d6e0a4190d37740e9447e4e4815f06992dd8c3 upstream.
> ...
> > --- a/kernel/futex.c
> > +++ b/kernel/futex.c
> > @@ -1458,6 +1458,45 @@ out:
> >  	return ret;
> >  }
> >  
> > +static int futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
> > +{
> > +	unsigned int op =	  (encoded_op & 0x70000000) >> 28;
> > +	unsigned int cmp =	  (encoded_op & 0x0f000000) >> 24;
> > +	int oparg = sign_extend32((encoded_op & 0x00fff000) >> 12, 12);
> > +	int cmparg = sign_extend32(encoded_op & 0x00000fff, 12);
> 
> 12 is wrong here – wherever you apply this, you need also a follow-up fix:
> commit d70ef22892ed6c066e51e118b225923c9b74af34
> Author: Jiri Slaby <jslaby@suse.cz>
> Date:   Thu Nov 30 15:35:44 2017 +0100
> 
>     futex: futex_wake_op, fix sign_extend32 sign bits

Thanks for letting me know, I've now queued it up to the needed trees.

greg k-h


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From: Alexey Brodkin <Alexey.Brodkin-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.arm.kernel
Subject: Re: [PATCH 02/20] dma-mapping: provide a generic dma-noncoherent
	implementation
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Thread-Topic: [PATCH 02/20] dma-mapping: provide a generic dma-noncoherent
	implementation
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Hi Christoph,

On Fri, 2018-05-11 at 09:59 +0200, Christoph Hellwig wrote:

[snip]

There seems to be one subtle issue with map/unmap code.
While investigating problems on ARC I added instrumentation as below:
---------------------------------------->8------------------------------------
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -152,14 +152,37 @@ static void _dma_cache_sync(struct device *dev, phys_addr_t paddr, size_t size,
        }
 }
 
+static const char *dir_to_str(enum dma_data_direction dir)
+{
+       switch (dir) {
+       case DMA_BIDIRECTIONAL: return "DMA_BIDIRECTIONAL";
+       case DMA_TO_DEVICE: return "DMA_TO_DEVICE";
+       case DMA_FROM_DEVICE: return "DMA_FROM_DEVICE";
+       case DMA_NONE: return "DMA_NONE";
+       default: return "WRONG_VALUE!";
+       }
+}
+
 void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
                size_t size, enum dma_data_direction dir)
 {
+       if (dir != DMA_TO_DEVICE){
+               dump_stack();
+               printk(" *** %s@%d: DMA direction is %s instead of %s\n",
+                      __func__, __LINE__, dir_to_str(dir), dir_to_str(DMA_TO_DEVICE));
+       }
+
        return _dma_cache_sync(dev, paddr, size, dir);
 }
 
 void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
                size_t size, enum dma_data_direction dir)
 {
+       if (dir != DMA_FROM_DEVICE) {
+               dump_stack();
+               printk(" *** %s@%d: DMA direction is %s instead of %s\n",
+                      __func__, __LINE__, dir_to_str(dir), dir_to_str(DMA_FROM_DEVICE));
+       }
+
        return _dma_cache_sync(dev, paddr, size, dir);
 }
---------------------------------------->8------------------------------------

And with that I noticed a bit unexpected output, see below:
---------------------------------------->8------------------------------------
Stack Trace:
  arc_unwind_core.constprop.1+0xd4/0xf8
  dump_stack+0x68/0x80
  arch_sync_dma_for_device+0x34/0xc4
  dma_noncoherent_map_sg+0x80/0x94
  __dw_mci_start_request+0x1ee/0x868
  dw_mci_request+0x17e/0x1c8
  mmc_wait_for_req+0x106/0x1ac
  mmc_app_sd_status+0x108/0x130
  mmc_sd_setup_card+0xc6/0x2e8
  mmc_attach_sd+0x1b6/0x394
  mmc_rescan+0x2f4/0x3bc
  process_one_work+0x194/0x348
  worker_thread+0xf2/0x478
  kthread+0x120/0x13c
  ret_from_fork+0x18/0x1c
 *** arch_sync_dma_for_device@172: DMA direction is DMA_FROM_DEVICE instead of DMA_TO_DEVICE
...
Stack Trace:
  arc_unwind_core.constprop.1+0xd4/0xf8
  dump_stack+0x68/0x80
  arch_sync_dma_for_device+0x34/0xc4
  dma_noncoherent_map_page+0x86/0x8c
  usb_hcd_map_urb_for_dma+0x49e/0x53c
  usb_hcd_submit_urb+0x43c/0x8c4
  usb_control_msg+0xbe/0x16c
  hub_port_init+0x5e0/0xb0c
  hub_event+0x4e6/0x1164
  process_one_work+0x194/0x348
  worker_thread+0xf2/0x478
  kthread+0x120/0x13c
  ret_from_fork+0x18/0x1c
 mmcblk0: p1 p2
 *** arch_sync_dma_for_device@172: DMA direction is DMA_FROM_DEVICE instead of DMA_TO_DEVICE

...
and quite some more of the similar
...
---------------------------------------->8------------------------------------

In case of MMC/DW_MCI (AKA DesignWare MobileStorage controller) that's an execution flow:
1) __dw_mci_start_request()
2) dw_mci_pre_dma_transfer()
3) dma_map_sg(..., mmc_get_dma_dir(data))

Note mmc_get_dma_dir() is just "data->flags & MMC_DATA_WRITE ? DMA_TO_DEVICE : DMA_FROM_DEVICE".
I.e. if we're preparing for sending data dma_noncoherent_map_sg() will have DMA_TO_DEVICE which
is quite OK for passing to dma_noncoherent_sync_sg_for_device() but in case of reading we'll have
DMA_FROM_DEVICE which we'll pass to dma_noncoherent_sync_sg_for_device() in dma_noncoherent_map_sg().

I'd say this is not entirely correct because IMHO arch_sync_dma_for_cpu() is supposed to only be used
in case of DMA_FROM_DEVICE and arch_sync_dma_for_device() only in case of DMA_TO_DEVICE.


> +static dma_addr_t dma_noncoherent_map_page(struct device *dev, struct page *page,
> +		unsigned long offset, size_t size, enum dma_data_direction dir,
> +		unsigned long attrs)
> +{
> +	dma_addr_t addr;
> +
> +	addr = dma_direct_map_page(dev, page, offset, size, dir, attrs);
> +	if (!dma_mapping_error(dev, addr) && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> +		arch_sync_dma_for_device(dev, page_to_phys(page), size, dir);
> +	return addr;
> +}
> +
> +static int dma_noncoherent_map_sg(struct device *dev, struct scatterlist *sgl,
> +		int nents, enum dma_data_direction dir, unsigned long attrs)
> +{
> +	nents = dma_direct_map_sg(dev, sgl, nents, dir, attrs);
> +	if (nents > 0 && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> +		dma_noncoherent_sync_sg_for_device(dev, sgl, nents, dir);
> +	return nents;
> +}

The same is for unmap functions.
My guess is we need to respect direction in map/unmap functions and use
either dma_noncoherent_sync_single_for_cpu(..., DMA_FROM_DEVICE) or
dma_noncoherent_sync_single_for_device(...,DMA_TO_DEVICE).


> +static void dma_noncoherent_unmap_page(struct device *dev, dma_addr_t addr,
> +		size_t size, enum dma_data_direction dir, unsigned long attrs)
> +{
> +	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> +		dma_noncoherent_sync_single_for_cpu(dev, addr, size, dir);
> +}
> +
> +static void dma_noncoherent_unmap_sg(struct device *dev, struct scatterlist *sgl,
> +		int nents, enum dma_data_direction dir, unsigned long attrs)
> +{
> +	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> +		dma_noncoherent_sync_sg_for_cpu(dev, sgl, nents, dir);
> +}
> +#endif

But the real fix of my problem is:
---------------------------------------->8------------------------------------
--- a/lib/dma-noncoherent.c
+++ b/lib/dma-noncoherent.c
@@ -35,7 +35,7 @@ static dma_addr_t dma_noncoherent_map_page(struct device *dev, struct page *page
 
        addr = dma_direct_map_page(dev, page, offset, size, dir, attrs);
        if (!dma_mapping_error(dev, addr) && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-               arch_sync_dma_for_device(dev, page_to_phys(page), size, dir);
+               arch_sync_dma_for_device(dev, page_to_phys(page) + offset, size, dir);
        return addr;
 }
---------------------------------------->8------------------------------------

You seem to lost an offset in the page so if we happen to have a buffer not aligned to
a page boundary then we were obviously corrupting data outside our data :)

-Alexey

From - Thu Nov 08 21:41:29 2018
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Subject: Re: [PATCH 02/20] dma-mapping: provide a generic dma-noncoherent
	implementation
Date: Fri, 18 May 2018 15:27:31 +0200
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On Fri, May 18, 2018 at 01:03:46PM +0000, Alexey Brodkin wrote:
> Note mmc_get_dma_dir() is just "data->flags & MMC_DATA_WRITE ? DMA_TO_DEVICE : DMA_FROM_DEVICE".
> I.e. if we're preparing for sending data dma_noncoherent_map_sg() will have DMA_TO_DEVICE which
> is quite OK for passing to dma_noncoherent_sync_sg_for_device() but in case of reading we'll have
> DMA_FROM_DEVICE which we'll pass to dma_noncoherent_sync_sg_for_device() in dma_noncoherent_map_sg().
> 
> I'd say this is not entirely correct because IMHO arch_sync_dma_for_cpu() is supposed to only be used
> in case of DMA_FROM_DEVICE and arch_sync_dma_for_device() only in case of DMA_TO_DEVICE.

arc overrides the dir paramter of the dma_sync_single_for_device/
dma_sync_single_for_cpu calls.  My patches dropped that, and I have
restored that, and audit for the other architectures is pending.

That being said the existing arc code still looks rather odd as it
didn't do the same thing for the scatterlist versions of the calls.
I've thrown in a few patches into my new tree to make the sg versions
make the normal calls, and to clean up the area a bit.

> You seem to lost an offset in the page so if we happen to have a buffer not aligned to
> a page boundary then we were obviously corrupting data outside our data :)

Oops!  Thank you for all the debugging!

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Subject: Re: [PATCH 02/20] dma-mapping: provide a generic dma-noncoherent
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Hi Christoph,

On Fri, 2018-05-18 at 15:27 +0200, hch-jcswGhMUV9g@public.gmane.org wrote:
> On Fri, May 18, 2018 at 01:03:46PM +0000, Alexey Brodkin wrote:
> > Note mmc_get_dma_dir() is just "data->flags & MMC_DATA_WRITE ? DMA_TO_DEVICE : DMA_FROM_DEVICE".
> > I.e. if we're preparing for sending data dma_noncoherent_map_sg() will have DMA_TO_DEVICE which
> > is quite OK for passing to dma_noncoherent_sync_sg_for_device() but in case of reading we'll have
> > DMA_FROM_DEVICE which we'll pass to dma_noncoherent_sync_sg_for_device() in dma_noncoherent_map_sg().
> > 
> > I'd say this is not entirely correct because IMHO arch_sync_dma_for_cpu() is supposed to only be used
> > in case of DMA_FROM_DEVICE and arch_sync_dma_for_device() only in case of DMA_TO_DEVICE.
> 
> arc overrides the dir paramter of the dma_sync_single_for_device/
> dma_sync_single_for_cpu calls.  My patches dropped that, and I have
> restored that, and audit for the other architectures is pending.

Well at least for me that's a confusion what is a reason to pass direction
to function which purpose is already known.

I'd say that XXX_sync_for_device() doesn't need _variable_ direction as an argument,
otherwise what does that mean if we pass DMA_FROM_DEVICE to that function?

> That being said the existing arc code still looks rather odd as it
> didn't do the same thing for the scatterlist versions of the calls.

That might easily be the case so good we caught that now and it will be fixed :)

> I've thrown in a few patches into my new tree to make the sg versions
> make the normal calls, and to clean up the area a bit.

I'll try your newer series now, thanks!

-Alexey

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Subject: dma_sync_*_for_cpu and direction=TO_DEVICE (was Re: [PATCH 02/20]
	dma-mapping: provide a generic dma-noncoherent implementation)
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On 05/18/2018 06:11 AM, Alexey Brodkin wrote:
>   void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
>                  size_t size, enum dma_data_direction dir)
>   {
> +       if (dir != DMA_TO_DEVICE){
> +               dump_stack();
> +               printk(" *** %s@%d: DMA direction is %s instead of %s\n",
> +                      __func__, __LINE__, dir_to_str(dir), dir_to_str(DMA_TO_DEVICE));
> +       }
> +
>          return _dma_cache_sync(dev, paddr, size, dir);
>   }
>   
>   void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
>                  size_t size, enum dma_data_direction dir)
>   {
> +       if (dir != DMA_FROM_DEVICE) {
> +               dump_stack();
> +               printk(" *** %s@%d: DMA direction is %s instead of %s\n",
> +                      __func__, __LINE__, dir_to_str(dir), dir_to_str(DMA_FROM_DEVICE));
> +       }
> +
>          return _dma_cache_sync(dev, paddr, size, dir);
>   }

...
> In case of MMC/DW_MCI (AKA DesignWare MobileStorage controller) that's an execution flow:
> 1) __dw_mci_start_request()
> 2) dw_mci_pre_dma_transfer()
> 3) dma_map_sg(..., mmc_get_dma_dir(data))
>
> Note mmc_get_dma_dir() is just "data->flags & MMC_DATA_WRITE ? DMA_TO_DEVICE : DMA_FROM_DEVICE".
> I.e. if we're preparing for sending data dma_noncoherent_map_sg() will have DMA_TO_DEVICE which
> is quite OK for passing to dma_noncoherent_sync_sg_for_device() but in case of reading we'll have
> DMA_FROM_DEVICE which we'll pass to dma_noncoherent_sync_sg_for_device() in dma_noncoherent_map_sg().
>
> I'd say this is not entirely correct because IMHO arch_sync_dma_for_cpu() is supposed to only be used
> in case of DMA_FROM_DEVICE and arch_sync_dma_for_device() only in case of DMA_TO_DEVICE.

So roughly 10 years ago, some kernel rookie name Vineet Gupta, asked the exact 
same question :-)

http://kernelnewbies.kernelnewbies.narkive.com/aGW1QcDv/query-about-dma-sync-for-cpu-and-direction-to-device

I never understood the need for this direction. And if memory serves me right, at 
that time I was seeing twice the amount of cache flushing !

> But the real fix of my problem is:
> ---------------------------------------->8------------------------------------
> --- a/lib/dma-noncoherent.c
> +++ b/lib/dma-noncoherent.c
> @@ -35,7 +35,7 @@ static dma_addr_t dma_noncoherent_map_page(struct device *dev, struct page *page
>   
>          addr = dma_direct_map_page(dev, page, offset, size, dir, attrs);
>          if (!dma_mapping_error(dev, addr) && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> -               arch_sync_dma_for_device(dev, page_to_phys(page), size, dir);
> +               arch_sync_dma_for_device(dev, page_to_phys(page) + offset, size, dir);
>          return addr;
>   }
> ---------------------------------------->8------------------------------------
>
> You seem to lost an offset in the page so if we happen to have a buffer not aligned to
> a page boundary then we were obviously corrupting data outside our data :)

Neat !


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Subject: Re: [PATCH 02/20] dma-mapping: provide a generic dma-noncoherent
	implementation
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To: "hch-jcswGhMUV9g@public.gmane.org" <hch-jcswGhMUV9g@public.gmane.org>,
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On 05/18/2018 06:23 AM, hch-jcswGhMUV9g@public.gmane.org wrote:
>   Fri, May 18, 2018 at 01:03:46PM +0000, Alexey Brodkin wrote:
>> Note mmc_get_dma_dir() is just "data->flags & MMC_DATA_WRITE ? DMA_TO_DEVICE : DMA_FROM_DEVICE".
>> I.e. if we're preparing for sending data dma_noncoherent_map_sg() will have DMA_TO_DEVICE which
>> is quite OK for passing to dma_noncoherent_sync_sg_for_device() but in case of reading we'll have
>> DMA_FROM_DEVICE which we'll pass to dma_noncoherent_sync_sg_for_device() in dma_noncoherent_map_sg().
>>
>> I'd say this is not entirely correct because IMHO arch_sync_dma_for_cpu() is supposed to only be used
>> in case of DMA_FROM_DEVICE and arch_sync_dma_for_device() only in case of DMA_TO_DEVICE.
> arc overrides the dir paramter of the dma_sync_single_for_device/
> dma_sync_single_for_cpu calls.  My patches dropped that, and I have
> restored that, and audit for the other architectures is pending.

Right, for now lets retain that and do a sweeping audit of @direction - to me it 
seems extraneous (as it did 10 years ago), but I'm not an expert in this are so 
perhaps it is needed for some device / arches and it would be good to understand 
that finally.

> That being said the existing arc code still looks rather odd as it
> didn't do the same thing for the scatterlist versions of the calls.
> I've thrown in a few patches into my new tree to make the sg versions
> make the normal calls, and to clean up the area a bit.

Not calling names or anything here, but it doesn't exist for sg variants, because 
I didn't write that code :-)
It was introduced by your commi:

2016-01-20 052c96dbe33b arc: convert to dma_map_ops


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Subject: Re: dma_sync_*_for_cpu and direction=TO_DEVICE (was Re: [PATCH
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On Fri, May 18, 2018 at 10:20:02AM -0700, Vineet Gupta wrote:
> I never understood the need for this direction. And if memory serves me
> right, at that time I was seeing twice the amount of cache flushing !

It's necessary.  Take a moment to think carefully about this:

	dma_map_single(, dir)

	dma_sync_single_for_cpu(, dir)

	dma_sync_single_for_device(, dir)

	dma_unmap_single(, dir)

In the case of a DMA-incoherent architecture, the operations done at each
stage depend on the direction argument:

	map		for_cpu		for_device	unmap
TO_DEV	writeback	none		writeback	none
TO_CPU	invalidate	invalidate*	invalidate	invalidate*
BIDIR	writeback	invalidate	writeback	invalidate

* - only necessary if the CPU speculatively prefetches.

The multiple invalidations for the TO_CPU case handles different
conditions that can result in data corruption, and for some CPUs, all
four are necessary.

This is what is implemented for 32-bit ARM, depending on the CPU
capabilities, as we have DMA incoherent devices and we have CPUs that
speculatively prefetch data, and so may load data into the caches while
DMA is in operation.


Things get more interesting if the implementation behind the DMA API has
to copy data between the buffer supplied to the mapping and some DMA
accessible buffer:

	map		for_cpu		for_device	unmap
TO_DEV	copy to dma	none		copy to dma	none
TO_CPU	none		copy to cpu	none		copy to cpu
BIDIR	copy to dma	copy to cpu	copy to dma	copy to cpu

So, in both cases, the value of the direction argument defines what you
need to do in each call.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up
According to speedtest.net: 8.21Mbps down 510kbps up


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Subject: Re: dma_sync_*_for_cpu and direction=TO_DEVICE (was Re: [PATCH
	02/20] dma-mapping: provide a generic dma-noncoherent implementation)
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Thread-Topic: dma_sync_*_for_cpu and direction=TO_DEVICE (was Re: [PATCH
	02/20] dma-mapping: provide a generic dma-noncoherent implementation)
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Hi Russel,

On Fri, 2018-05-18 at 18:50 +0100, Russell King - ARM Linux wrote:
> It's necessary.  Take a moment to think carefully about this:
> 
>         dma_map_single(, dir)
> 
>         dma_sync_single_for_cpu(, dir)
> 
>         dma_sync_single_for_device(, dir)
> 
>         dma_unmap_single(, dir)
> 
> In the case of a DMA-incoherent architecture, the operations done at each
> stage depend on the direction argument:
> 
>         map             for_cpu         for_device      unmap
> TO_DEV  writeback       none            writeback       none
> TO_CPU  invalidate      invalidate*     invalidate      invalidate*
> BIDIR   writeback       invalidate      writeback       invalidate
> 
> * - only necessary if the CPU speculatively prefetches.

I think invalidation of DMA buffer is required on for_cpu(TO_CPU) even
if CPU doesn't preferch - what if we reuse the same buffer for multiple
reads from DMA device?

> The multiple invalidations for the TO_CPU case handles different
> conditions that can result in data corruption, and for some CPUs, all
> four are necessary.

I would agree that map()/unmap() a quite a special cases and so depending
on direction we need to execute in them either for_cpu() or for_device()
call-backs depending on direction.

As for invalidation in case of for_device(TO_CPU) I still don't see
a rationale behind it. Would be interesting to see a real example where
we benefit from this.

> This is what is implemented for 32-bit ARM, depending on the CPU
> capabilities, as we have DMA incoherent devices and we have CPUs that
> speculatively prefetch data, and so may load data into the caches while
> DMA is in operation.
> 
> 
> Things get more interesting if the implementation behind the DMA API has
> to copy data between the buffer supplied to the mapping and some DMA
> accessible buffer:
> 
>         map             for_cpu         for_device      unmap
> TO_DEV  copy to dma     none            copy to dma     none
> TO_CPU  none            copy to cpu     none            copy to cpu
> BIDIR   copy to dma     copy to cpu     copy to dma     copy to cpu
> 
> So, in both cases, the value of the direction argument defines what you
> need to do in each call.

Interesting enough in your seond table (which describes more complicated
case indeed) you set "none" for for_device(TO_CPU) which looks logical
to me.

So IMHO that's what make sense:
---------------------------->8-----------------------------
        map             for_cpu         for_device      unmap
TO_DEV  writeback       none            writeback       none
TO_CPU  none            invalidate      none            invalidate*
BIDIR   writeback       invalidate      writeback       invalidate*
---------------------------->8-----------------------------

* is the case for prefetching CPU.

-Alexey

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On 18.05.2018 15:03, Alexey Brodkin wrote:
> But the real fix of my problem is:
> ---------------------------------------->8------------------------------------
> --- a/lib/dma-noncoherent.c
> +++ b/lib/dma-noncoherent.c
> @@ -35,7 +35,7 @@ static dma_addr_t dma_noncoherent_map_page(struct device *dev, struct page *page
>  
>         addr = dma_direct_map_page(dev, page, offset, size, dir, attrs);
>         if (!dma_mapping_error(dev, addr) && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
> -               arch_sync_dma_for_device(dev, page_to_phys(page), size, dir);
> +               arch_sync_dma_for_device(dev, page_to_phys(page) + offset, size, dir);
>         return addr;
>  }
> ---------------------------------------->8------------------------------------
> 
> You seem to lost an offset in the page so if we happen to have a buffer not aligned to
> a page boundary then we were obviously corrupting data outside our data :)

Good.
This patch seems to fix the dma issues I faced on my 32bit B160L parisc box.

So it leaves only one open issue on parisc:
Now every 32 bit parisc system is unnecessarily non-coherent.

Helge

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Subject: Re: dma_sync_*_for_cpu and direction=TO_DEVICE (was Re: [PATCH 02/20]
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Subject: Re: dma_sync_*_for_cpu and direction=TO_DEVICE (was Re: [PATCH
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On Fri, May 18, 2018 at 07:57:34PM +0000, Alexey Brodkin wrote:
> Hi Russel,

That's Russell.

> On Fri, 2018-05-18 at 18:50 +0100, Russell King - ARM Linux wrote:
> > It's necessary.  Take a moment to think carefully about this:
> > 
> >         dma_map_single(, dir)
> > 
> >         dma_sync_single_for_cpu(, dir)
> > 
> >         dma_sync_single_for_device(, dir)
> > 
> >         dma_unmap_single(, dir)
> > 
> > In the case of a DMA-incoherent architecture, the operations done at each
> > stage depend on the direction argument:
> > 
> >         map             for_cpu         for_device      unmap
> > TO_DEV  writeback       none            writeback       none
> > TO_CPU  invalidate      invalidate*     invalidate      invalidate*
> > BIDIR   writeback       invalidate      writeback       invalidate
> > 
> > * - only necessary if the CPU speculatively prefetches.
> 
> I think invalidation of DMA buffer is required on for_cpu(TO_CPU) even
> if CPU doesn't preferch - what if we reuse the same buffer for multiple
> reads from DMA device?

That's fine - for non-coherent DMA, the CPU caches will only end up
containing data for that memory if:
- the CPU speculatively fetches data from that memory, or
- the CPU explicitly touches that memory

> > The multiple invalidations for the TO_CPU case handles different
> > conditions that can result in data corruption, and for some CPUs, all
> > four are necessary.
> 
> I would agree that map()/unmap() a quite a special cases and so depending
> on direction we need to execute in them either for_cpu() or for_device()
> call-backs depending on direction.
> 
> As for invalidation in case of for_device(TO_CPU) I still don't see
> a rationale behind it. Would be interesting to see a real example where
> we benefit from this.

Yes, you could avoid that, but depending how you structure the
architecture implementation, it can turn out to be a corner case.
The above table is precisely how 32-bit ARM is implemented, because
the way we implement them is based on who owns the memory - the "map"
and "for_device" operations translate internally to a cpu-to-device
ownership transition of the buffer.  Similar for "unmap" and "to_cpu".
It basically avoids having to add additional functions at the lower
implementation levels.

> > Things get more interesting if the implementation behind the DMA API has
> > to copy data between the buffer supplied to the mapping and some DMA
> > accessible buffer:
> > 
> >         map             for_cpu         for_device      unmap
> > TO_DEV  copy to dma     none            copy to dma     none
> > TO_CPU  none            copy to cpu     none            copy to cpu
> > BIDIR   copy to dma     copy to cpu     copy to dma     copy to cpu
> > 
> > So, in both cases, the value of the direction argument defines what you
> > need to do in each call.
> 
> Interesting enough in your seond table (which describes more complicated
> case indeed) you set "none" for for_device(TO_CPU) which looks logical
> to me.
> 
> So IMHO that's what make sense:
> ---------------------------->8-----------------------------
>         map             for_cpu         for_device      unmap
> TO_DEV  writeback       none            writeback       none
> TO_CPU  none            invalidate      none            invalidate*
> BIDIR   writeback       invalidate      writeback       invalidate*
> ---------------------------->8-----------------------------

That doesn't make sense for the TO_CPU case.  If the caches contain
dirty cache lines, and you're DMAing from the device to the system
RAM, other system activity can cause the dirty cache lines to be
evicted (written back) to memory which the DMA has already overwritten.
The result is data corruption.  So, you really can't have "none" in
the "map" case there.

Given that, the "for_cpu" case becomes dependent on whether the CPU
speculatively prefetches.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up
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From - Thu Nov 08 21:41:30 2018
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From: Russell King - ARM Linux <linux@armlinux.org.uk>
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Subject: Re: dma_sync_*_for_cpu and direction=TO_DEVICE (was Re: [PATCH
 02/20] dma-mapping: provide a generic dma-noncoherent implementation)
Date: Fri, 18 May 2018 22:55:48 +0100
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To: Vineet Gupta <Vineet.Gupta1@synopsys.com>
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On Fri, May 18, 2018 at 01:35:08PM -0700, Vineet Gupta wrote:
> On 05/18/2018 10:50 AM, Russell King - ARM Linux wrote:
> >On Fri, May 18, 2018 at 10:20:02AM -0700, Vineet Gupta wrote:
> >>I never understood the need for this direction. And if memory serves me
> >>right, at that time I was seeing twice the amount of cache flushing !
> >It's necessary.  Take a moment to think carefully about this:
> >
> >	dma_map_single(, dir)
> >
> >	dma_sync_single_for_cpu(, dir)
> >
> >	dma_sync_single_for_device(, dir)
> >
> >	dma_unmap_single(, dir)
> 
> As an aside, do these imply a state machine of sorts - does a driver needs
> to always call map_single first ?

Kind-of, but some drivers do omit some of the dma_sync_*() calls.
For example, if a buffer is written to, then mapped with TO_DEVICE,
and then the CPU wishes to write to it, it's fairly common that a
driver omits the dma_sync_single_for_cpu() call.  If you think about
the cases I gave and what cache operations happen, such a scenario
practically turns out to be safe.

> My original point of contention/confusion is the specific combinations of
> API and direction, specifically for_cpu(TO_DEV) and for_device(TO_CPU)

Remember that it is expected that all calls for a mapping use the
same direction argument while that mapping exists.  In other words,
if you call dma_map_single(TO_DEVICE) and then use any of the other
functions, the other functions will also use TO_DEVICE.  The DMA
direction argument describes the direction of the DMA operation
being performed on the buffer, not on the individual dma_* operation.

What isn't expected at arch level is for drivers to do:

	dma_map_single(TO_DEVICE)
	dma_sync_single_for_cpu(FROM_DEVICE)

or vice versa.

> Semantically what does dma_sync_single_for_cpu(TO_DEV) even imply for a non
> dma coherent arch.
> 
> Your tables below have "none" for both, implying it is unlikely to be a real
> combination (for ARM and ARC atleast).

Very little for the cases that I've stated (and as I mentioned
above, some drivers do omit the call in that case.)

> The other case, actually @dir TO_CPU, independent of for_{cpu, device}
> implies driver intends to touch it after the call, so it would invalidate
> any stray lines, unconditionally (and not just for speculative prefetch
> case).

If you don't have a CPU that speculatively prefetches, and you've
already had to invalidate the cache lines (to avoid write-backs
corrupting DMA'd data) then there's no need for the architecture
to do any work at the for_cpu(TO_CPU) case - the CPU shouldn't
be touching cache lines that are part of the buffer while it is
mapped, which means a non-speculating CPU won't pull in any
cache lines without an explicit access.

Speculating CPUs are different.  The action of the speculation is
to try and guess what data the program wants to access ahead of
the program flow.  That causes the CPU to prefetch data into the
cache.  The point in the program flow that this happens is not
really determinant to the programmer.  This means that if you try
to read from the DMA buffer after the DMA operation has complete
without invalidating the cache between the DMA completing and the
CPU reading, you have no guarantee that you're reading the data
that the DMA operation has been written.  The cache may have
loaded itself with data before the DMA operation completed, and
the CPU may see that stale data.

The difference between non-speculating CPUs and speculating CPUs
is that for non-speculating CPUs, caches work according to explicit
accesses by the program, and the program is stalled while the data
is fetched from external memory.  Speculating CPUs try to predict
ahead of time what data the program will require in the future,
and attempt to load that data into the caches _before_ the program
requires it - which means that the program suffers fewer stalls.

> >In the case of a DMA-incoherent architecture, the operations done at each
> >stage depend on the direction argument:
> >
> >	map		for_cpu		for_device	unmap
> >TO_DEV	writeback	none		writeback	none
> >TO_CPU	invalidate	invalidate*	invalidate	invalidate*
> >BIDIR	writeback	invalidate	writeback	invalidate
> >
> >* - only necessary if the CPU speculatively prefetches.
> >
> >The multiple invalidations for the TO_CPU case handles different
> >conditions that can result in data corruption, and for some CPUs, all
> >four are necessary.
> 
> Can you please explain in some more detail, TO_CPU row, why invalidate is
> conditional sometimes.

See above - I hope my explanation above is sufficient.

-- 
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To: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
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On Fri, May 18, 2018 at 10:05:51PM +0200, Helge Deller wrote:
> This patch seems to fix the dma issues I faced on my 32bit B160L parisc box.
> 
> So it leaves only one open issue on parisc:
> Now every 32 bit parisc system is unnecessarily non-coherent.

I diagree with those comments, let me resend the refactored patch
to make it more clear.

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Hi Linus,

please pull three small section mismatch fixes for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.17-5

Three small section mismatch fixes, one of them was found by 0-day test
infrastructure.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (3):
      parisc: Move find_pa_parent_type() out of init section
      parisc: Move setup_profiling_timer() out of init section
      parisc: Move ccio_cujo20_fixup() into init section

 arch/parisc/kernel/drivers.c | 2 +-
 arch/parisc/kernel/smp.c     | 3 +--
 drivers/parisc/ccio-dma.c    | 2 +-
 3 files changed, 3 insertions(+), 4 deletions(-)


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On Fri, May 11, 2018 at 10:11:15AM +0100, Russell King - ARM Linux wrote:
> > +void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
> > +		size_t size, enum dma_data_direction dir)
> 
> Please no.  There is a lot of history of these (__dma_page_cpu_to_dev etc)
> functions being abused by out of tree drivers, because they think they
> know better.  This is stopped by making them static and ensuring that
> drivers have no access to these functions.
> 
> Please do not re-expose these to the global kernel.
> 
> While it may make things easier for a cross-architecture point of view,
> it makes it a lot easier for people to abuse these private APIs.

The point of this series, which isn't fully archived yet, is to
consolidate the direct mapping dma code, that is all dma_map_ops
instances except for iommus.  It is in fact in many ways modelled
after the ARM code.  For that we need the architectures to supply
the cache maintainance routines.

However, even if they now appear in dma-noncoherent.h they are NOT
and will NOT be exported, so using them directly from drivers won't
easily be possible.

I'll drop the arm-nommu patch for now, but I will pester your with this
again once arm is the last architecture not sharing the common code.

> 
> -- 
> RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
> FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up
> According to speedtest.net: 8.21Mbps down 510kbps up
---end quoted text---

From - Thu Nov 08 21:41:30 2018
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Subject: common non-cache coherent direct dma mapping ops v2
Date: Tue, 22 May 2018 14:04:05 +0200
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Hi all,

this series continues consolidating the dma-mapping code, with a focus
on architectures that do not (always) provide cache coherence for DMA.
Three architectures (arm, mips and powerpc) are still left to be
converted later due to complexity of their dma ops selection.

The dma-noncoherent ops calls the dma-direct ops for the actual
translation of streaming mappins and allow the architecture to provide
any cache flushing required for cpu to device and/or device to cpu
ownership transfers.  The dma coherent allocator is for now still left
entirely to architecture supplied implementations due the amount of
variations.  Hopefully we can do some consolidation for them later on
as well.

A lot of architectures are currently doing very questionable things
in their dma mapping routines, which are documented in the changelogs
for each patch.  Please review them very careful and correct me on
incorrect assumptions.

Because this series sits on top of three previously submitted series
a git tree might be useful to actually test it.  It is provided here:

    git://git.infradead.org/users/hch/misc.git generic-dma-noncoherent.2

Gitweb:

    http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/generic-dma-noncoherent.2

Changes since v1:
 - dropped the already merged generic, arc and c6x patches
   (with the map_single offset fix from Alexey Brodkin)
 - split various changes into smaller patches
 - dropped the arm-nommu changes for now
 - fixed a typo

Changes since RFC:
 - fix a typo accidentally disabling the device to cpu transfer sync
 - fixed a few compile failures


From - Thu Nov 08 21:41:30 2018
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Subject: [PATCH 01/25] hexagon: remove the sync_single_for_cpu DMA operation
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hexagon does all the required cache maintainance at dma map time, and none
at unmap time.  It thus has to implement sync_single_for_device to match
the map cace for buffer reuse, but there is no point in doing another
invalidation in the sync_single_cpu_case, which in terms of cache
maintainance is equivalent to the unmap case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/hexagon/kernel/dma.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index 77459df34e2e..d2b717f352f4 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -181,13 +181,6 @@ static dma_addr_t hexagon_map_page(struct device *dev, struct page *page,
 	return bus;
 }
 
-static void hexagon_sync_single_for_cpu(struct device *dev,
-					dma_addr_t dma_handle, size_t size,
-					enum dma_data_direction dir)
-{
-	dma_sync(dma_addr_to_virt(dma_handle), size, dir);
-}
-
 static void hexagon_sync_single_for_device(struct device *dev,
 					dma_addr_t dma_handle, size_t size,
 					enum dma_data_direction dir)
@@ -205,7 +198,6 @@ const struct dma_map_ops hexagon_dma_ops = {
 	.free		= hexagon_free_coherent,
 	.map_sg		= hexagon_map_sg,
 	.map_page	= hexagon_map_page,
-	.sync_single_for_cpu = hexagon_sync_single_for_cpu,
 	.sync_single_for_device = hexagon_sync_single_for_device,
 	.mapping_error	= hexagon_mapping_error,
 };
-- 
2.17.0



From - Thu Nov 08 21:41:30 2018
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Subject: [PATCH 02/25] hexagon: implement the sync_sg_for_device DMA operation
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This methods needs to provide the equivalent of sync_single_for_device
for each S/G list element, but was missing.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/hexagon/kernel/dma.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index d2b717f352f4..9e46556a227d 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -188,6 +188,18 @@ static void hexagon_sync_single_for_device(struct device *dev,
 	dma_sync(dma_addr_to_virt(dma_handle), size, dir);
 }
 
+static void hexagon_sync_sg_for_device(struct device *dev,
+		struct scatterlist *sgl, int nents, enum dma_data_direction dir)
+{
+	struct scatterlist *sg;
+	int i;
+
+	for_each_sg(sgl, sg, nents, i)
+		hexagon_sync_single_for_device(dev, sg_dma_address(sg),
+				sg->length, dir);
+}
+
+
 static int hexagon_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
 	return dma_addr == HEXAGON_MAPPING_ERROR;
@@ -199,6 +211,7 @@ const struct dma_map_ops hexagon_dma_ops = {
 	.map_sg		= hexagon_map_sg,
 	.map_page	= hexagon_map_page,
 	.sync_single_for_device = hexagon_sync_single_for_device,
+	.sync_sg_for_device = hexagon_sync_sg_for_device,
 	.mapping_error	= hexagon_mapping_error,
 };
 
-- 
2.17.0



From - Thu Nov 08 21:41:30 2018
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Subject: [PATCH 05/25] microblaze: use generic dma_noncoherent_ops
Date: Tue, 22 May 2018 14:04:10 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2773743>

Switch to the generic noncoherent direct mapping implementation.

This removes the direction-based optimizations in
sync_{single,sg}_for_{cpu,device} which were marked untestested and
do not match the usually very well tested {un,}map_{single,sg}
implementations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/microblaze/Kconfig                   |   4 +
 arch/microblaze/include/asm/Kbuild        |   1 +
 arch/microblaze/include/asm/dma-mapping.h |  28 -----
 arch/microblaze/include/asm/pgtable.h     |   2 -
 arch/microblaze/kernel/dma.c              | 144 ++--------------------
 arch/microblaze/mm/consistent.c           |   9 +-
 6 files changed, 22 insertions(+), 166 deletions(-)
 delete mode 100644 arch/microblaze/include/asm/dma-mapping.h

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index d14782100088..848e31a86ba5 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -1,6 +1,8 @@
 config MICROBLAZE
 	def_bool y
 	select ARCH_HAS_GCOV_PROFILE_ALL
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
 	select ARCH_WANT_IPC_PARSE_VERSION
@@ -8,6 +10,8 @@ config MICROBLAZE
 	select TIMER_OF
 	select CLONE_BACKWARDS3
 	select COMMON_CLK
+	select DMA_NONCOHERENT_OPS
+	select DMA_NONCOHERENT_MMAP
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CPU_DEVICES
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
index 3c80a5a308ed..8d3e71f43a3e 100644
--- a/arch/microblaze/include/asm/Kbuild
+++ b/arch/microblaze/include/asm/Kbuild
@@ -4,6 +4,7 @@ generic-y += bug.h
 generic-y += bugs.h
 generic-y += device.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
deleted file mode 100644
index add50c1373bf..000000000000
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Implements the generic device dma API for microblaze and the pci
- *
- * Copyright (C) 2009-2010 Michal Simek <monstr@monstr.eu>
- * Copyright (C) 2009-2010 PetaLogix
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of this
- * archive for more details.
- *
- * This file is base on powerpc and x86 dma-mapping.h versions
- * Copyright (C) 2004 IBM
- */
-
-#ifndef _ASM_MICROBLAZE_DMA_MAPPING_H
-#define _ASM_MICROBLAZE_DMA_MAPPING_H
-
-/*
- * Available generic sets of operations
- */
-extern const struct dma_map_ops dma_nommu_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &dma_nommu_ops;
-}
-
-#endif	/* _ASM_MICROBLAZE_DMA_MAPPING_H */
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index db8b1fa83452..8a2e654b709f 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -553,8 +553,6 @@ void __init *early_get_page(void);
 
 extern unsigned long ioremap_bot, ioremap_base;
 
-void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle);
-void consistent_free(size_t size, void *vaddr);
 void consistent_sync(void *vaddr, size_t size, int direction);
 void consistent_sync_page(struct page *page, unsigned long offset,
 	size_t size, int direction);
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 3145e7dc8ab1..71032cf64669 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -8,29 +8,15 @@
  */
 
 #include <linux/device.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/gfp.h>
 #include <linux/dma-debug.h>
 #include <linux/export.h>
 #include <linux/bug.h>
 #include <asm/cacheflush.h>
 
-static void *dma_nommu_alloc_coherent(struct device *dev, size_t size,
-				       dma_addr_t *dma_handle, gfp_t flag,
-				       unsigned long attrs)
-{
-	return consistent_alloc(flag, size, dma_handle);
-}
-
-static void dma_nommu_free_coherent(struct device *dev, size_t size,
-				     void *vaddr, dma_addr_t dma_handle,
-				     unsigned long attrs)
-{
-	consistent_free(size, vaddr);
-}
-
-static inline void __dma_sync(unsigned long paddr,
-			      size_t size, enum dma_data_direction direction)
+static void __dma_sync(struct device *dev, phys_addr_t paddr, size_t size,
+		enum dma_data_direction direction)
 {
 	switch (direction) {
 	case DMA_TO_DEVICE:
@@ -45,113 +31,21 @@ static inline void __dma_sync(unsigned long paddr,
 	}
 }
 
-static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl,
-			     int nents, enum dma_data_direction direction,
-			     unsigned long attrs)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	struct scatterlist *sg;
-	int i;
-
-	/* FIXME this part of code is untested */
-	for_each_sg(sgl, sg, nents, i) {
-		sg->dma_address = sg_phys(sg);
-
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		__dma_sync(sg_phys(sg), sg->length, direction);
-	}
-
-	return nents;
-}
-
-static inline dma_addr_t dma_nommu_map_page(struct device *dev,
-					     struct page *page,
-					     unsigned long offset,
-					     size_t size,
-					     enum dma_data_direction direction,
-					     unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		__dma_sync(page_to_phys(page) + offset, size, direction);
-	return page_to_phys(page) + offset;
+	__dma_sync(dev, paddr, size, dir);
 }
 
-static inline void dma_nommu_unmap_page(struct device *dev,
-					 dma_addr_t dma_address,
-					 size_t size,
-					 enum dma_data_direction direction,
-					 unsigned long attrs)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-/* There is not necessary to do cache cleanup
- *
- * phys_to_virt is here because in __dma_sync_page is __virt_to_phys and
- * dma_address is physical address
- */
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		__dma_sync(dma_address, size, direction);
+	__dma_sync(dev, paddr, size, dir);
 }
 
-static inline void
-dma_nommu_sync_single_for_cpu(struct device *dev,
-			       dma_addr_t dma_handle, size_t size,
-			       enum dma_data_direction direction)
-{
-	/*
-	 * It's pointless to flush the cache as the memory segment
-	 * is given to the CPU
-	 */
-
-	if (direction == DMA_FROM_DEVICE)
-		__dma_sync(dma_handle, size, direction);
-}
-
-static inline void
-dma_nommu_sync_single_for_device(struct device *dev,
-				  dma_addr_t dma_handle, size_t size,
-				  enum dma_data_direction direction)
-{
-	/*
-	 * It's pointless to invalidate the cache if the device isn't
-	 * supposed to write to the relevant region
-	 */
-
-	if (direction == DMA_TO_DEVICE)
-		__dma_sync(dma_handle, size, direction);
-}
-
-static inline void
-dma_nommu_sync_sg_for_cpu(struct device *dev,
-			   struct scatterlist *sgl, int nents,
-			   enum dma_data_direction direction)
-{
-	struct scatterlist *sg;
-	int i;
-
-	/* FIXME this part of code is untested */
-	if (direction == DMA_FROM_DEVICE)
-		for_each_sg(sgl, sg, nents, i)
-			__dma_sync(sg->dma_address, sg->length, direction);
-}
-
-static inline void
-dma_nommu_sync_sg_for_device(struct device *dev,
-			      struct scatterlist *sgl, int nents,
-			      enum dma_data_direction direction)
-{
-	struct scatterlist *sg;
-	int i;
-
-	/* FIXME this part of code is untested */
-	if (direction == DMA_TO_DEVICE)
-		for_each_sg(sgl, sg, nents, i)
-			__dma_sync(sg->dma_address, sg->length, direction);
-}
-
-static
-int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
-			     void *cpu_addr, dma_addr_t handle, size_t size,
-			     unsigned long attrs)
+int arch_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+		void *cpu_addr, dma_addr_t handle, size_t size,
+		unsigned long attrs)
 {
 #ifdef CONFIG_MMU
 	unsigned long user_count = vma_pages(vma);
@@ -170,17 +64,3 @@ int dma_nommu_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 	return -ENXIO;
 #endif
 }
-
-const struct dma_map_ops dma_nommu_ops = {
-	.alloc			= dma_nommu_alloc_coherent,
-	.free			= dma_nommu_free_coherent,
-	.mmap			= dma_nommu_mmap_coherent,
-	.map_sg			= dma_nommu_map_sg,
-	.map_page		= dma_nommu_map_page,
-	.unmap_page		= dma_nommu_unmap_page,
-	.sync_single_for_cpu	= dma_nommu_sync_single_for_cpu,
-	.sync_single_for_device	= dma_nommu_sync_single_for_device,
-	.sync_sg_for_cpu	= dma_nommu_sync_sg_for_cpu,
-	.sync_sg_for_device	= dma_nommu_sync_sg_for_device,
-};
-EXPORT_SYMBOL(dma_nommu_ops);
diff --git a/arch/microblaze/mm/consistent.c b/arch/microblaze/mm/consistent.c
index b06c3a7faf20..b9a9c8c3397b 100644
--- a/arch/microblaze/mm/consistent.c
+++ b/arch/microblaze/mm/consistent.c
@@ -33,6 +33,7 @@
 #include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/gfp.h>
+#include <linux/dma-noncoherent.h>
 
 #include <asm/pgalloc.h>
 #include <linux/io.h>
@@ -59,7 +60,8 @@
  * uncached region.  This will no doubt cause big problems if memory allocated
  * here is not also freed properly. -- JW
  */
-void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	unsigned long order, vaddr;
 	void *ret;
@@ -154,7 +156,6 @@ void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle)
 
 	return ret;
 }
-EXPORT_SYMBOL(consistent_alloc);
 
 #ifdef CONFIG_MMU
 static pte_t *consistent_virt_to_pte(void *vaddr)
@@ -178,7 +179,8 @@ unsigned long consistent_virt_to_pfn(void *vaddr)
 /*
  * free page(s) as defined by the above mapping.
  */
-void consistent_free(size_t size, void *vaddr)
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_addr, unsigned long attrs)
 {
 	struct page *page;
 
@@ -218,7 +220,6 @@ void consistent_free(size_t size, void *vaddr)
 	flush_tlb_all();
 #endif
 }
-EXPORT_SYMBOL(consistent_free);
 
 /*
  * make an area consistent.
-- 
2.17.0



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Subject: [PATCH 09/25] nds32: implement the unmap_sg DMA operation
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This matches the implementation of the more commonly used unmap_single
routines and the sync_sg_for_cpu method which should provide equivalent
cache maintainance.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/nds32/kernel/dma.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/nds32/kernel/dma.c b/arch/nds32/kernel/dma.c
index 4e6fb4ffd3f7..43d7fd432bb6 100644
--- a/arch/nds32/kernel/dma.c
+++ b/arch/nds32/kernel/dma.c
@@ -426,6 +426,12 @@ static void nds32_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
 			       int nhwentries, enum dma_data_direction dir,
 			       unsigned long attrs)
 {
+	int i;
+
+	for (i = 0; i < nhwentries; i++, sg++) {
+		nds32_dma_sync_single_for_cpu(dev, sg_dma_address(sg),
+				sg->length, dir);
+	}
 }
 
 struct dma_map_ops nds32_dma_ops = {
-- 
2.17.0



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Subject: [PATCH 13/25] openrisc: remove the no-op unmap_page and unmap_sg DMA operations
Date: Tue, 22 May 2018 14:04:18 +0200
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Approved: news@gmane.org
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Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/openrisc/kernel/dma.c | 23 -----------------------
 1 file changed, 23 deletions(-)

diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index 47601274abf7..7cadff93d179 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -171,14 +171,6 @@ or1k_map_page(struct device *dev, struct page *page,
 	return addr;
 }
 
-static void
-or1k_unmap_page(struct device *dev, dma_addr_t dma_handle,
-		size_t size, enum dma_data_direction dir,
-		unsigned long attrs)
-{
-	/* Nothing special to do here... */
-}
-
 static int
 or1k_map_sg(struct device *dev, struct scatterlist *sg,
 	    int nents, enum dma_data_direction dir,
@@ -195,19 +187,6 @@ or1k_map_sg(struct device *dev, struct scatterlist *sg,
 	return nents;
 }
 
-static void
-or1k_unmap_sg(struct device *dev, struct scatterlist *sg,
-	      int nents, enum dma_data_direction dir,
-	      unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		or1k_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir, 0);
-	}
-}
-
 static void
 or1k_sync_single_for_device(struct device *dev,
 			    dma_addr_t dma_handle, size_t size,
@@ -226,9 +205,7 @@ const struct dma_map_ops or1k_dma_map_ops = {
 	.alloc = or1k_dma_alloc,
 	.free = or1k_dma_free,
 	.map_page = or1k_map_page,
-	.unmap_page = or1k_unmap_page,
 	.map_sg = or1k_map_sg,
-	.unmap_sg = or1k_unmap_sg,
 	.sync_single_for_device = or1k_sync_single_for_device,
 };
 EXPORT_SYMBOL(or1k_dma_map_ops);
-- 
2.17.0



From - Thu Nov 08 21:41:30 2018
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Subject: [PATCH 14/25] openrisc: fix cache maintainance the the sync_single_for_device DMA operation
Date: Tue, 22 May 2018 14:04:19 +0200
Lines: 85
Approved: news@gmane.org
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The cache maintaince in the sync_single_for_device operation should be
equivalent to the map_page operation to facilitate reusing buffers.  Fix the
openrisc implementation by moving the cache maintaince performed in map_page
into the sync_single method, and calling that from map_page.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/openrisc/kernel/dma.c | 42 +++++++++++++++++---------------------
 1 file changed, 19 insertions(+), 23 deletions(-)

diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index 7cadff93d179..d6a0bf1fa713 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -133,19 +133,15 @@ or1k_dma_free(struct device *dev, size_t size, void *vaddr,
 	free_pages_exact(vaddr, size);
 }
 
-static dma_addr_t
-or1k_map_page(struct device *dev, struct page *page,
-	      unsigned long offset, size_t size,
-	      enum dma_data_direction dir,
-	      unsigned long attrs)
+static void
+or1k_sync_single_for_device(struct device *dev,
+			    dma_addr_t dma_handle, size_t size,
+			    enum dma_data_direction dir)
 {
 	unsigned long cl;
-	dma_addr_t addr = page_to_phys(page) + offset;
+	dma_addr_t addr = dma_handle;
 	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
 
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return addr;
-
 	switch (dir) {
 	case DMA_TO_DEVICE:
 		/* Flush the dcache for the requested range */
@@ -168,6 +164,20 @@ or1k_map_page(struct device *dev, struct page *page,
 		break;
 	}
 
+}
+
+static dma_addr_t
+or1k_map_page(struct device *dev, struct page *page,
+	      unsigned long offset, size_t size,
+	      enum dma_data_direction dir,
+	      unsigned long attrs)
+{
+	unsigned long cl;
+	dma_addr_t addr = page_to_phys(page) + offset;
+	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
+
+	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		or1k_sync_single_for_device(dev, addr, size, dir);
 	return addr;
 }
 
@@ -187,20 +197,6 @@ or1k_map_sg(struct device *dev, struct scatterlist *sg,
 	return nents;
 }
 
-static void
-or1k_sync_single_for_device(struct device *dev,
-			    dma_addr_t dma_handle, size_t size,
-			    enum dma_data_direction dir)
-{
-	unsigned long cl;
-	dma_addr_t addr = dma_handle;
-	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
-
-	/* Flush the dcache for the requested range */
-	for (cl = addr; cl < addr + size; cl += cpuinfo->dcache_block_size)
-		mtspr(SPR_DCBFR, cl);
-}
-
 const struct dma_map_ops or1k_dma_map_ops = {
 	.alloc = or1k_dma_alloc,
 	.free = or1k_dma_free,
-- 
2.17.0



From - Thu Nov 08 21:41:30 2018
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Subject: [PATCH 18/25] sh: use dma_direct_ops for the CONFIG_DMA_COHERENT case
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Xref: news.gmane.org gmane.linux.kernel:2773748 gmane.linux.kernel.iommu:24482 gmane.linux.kernel.cross-arch:44291 gmane.linux.ports.alpha:5071 gmane.linux.kernel.arc:3927 gmane.linux.ports.arm.kernel:652010 gmane.linux.ports.hexagon:1750 gmane.linux.ports.parisc:28644 gmane.linux.ports.sh.devel:57062 gmane.linux.ports.sparc:27899
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2773748>

This is a slight change in behavior as we avoid the detour through the
virtual mapping for the coherent allocator, but if this CPU really is
coherent that should be the right thing to do.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sh/Kconfig                   | 1 +
 arch/sh/include/asm/dma-mapping.h | 4 ++++
 arch/sh/kernel/Makefile           | 4 ++--
 arch/sh/kernel/dma-nommu.c        | 4 ----
 4 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 7d521926041e..d0b095323d62 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -157,6 +157,7 @@ config SWAP_IO_SPACE
 	bool
 
 config DMA_COHERENT
+	select DMA_DIRECT_OPS
 	bool
 
 config DMA_NONCOHERENT
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 149e71f95be7..1ebc6a4eb1c5 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -6,7 +6,11 @@ extern const struct dma_map_ops nommu_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
+#ifdef CONFIG_DMA_NONCOHERENT
 	return &nommu_dma_ops;
+#else
+	return &dma_direct_ops;
+#endif
 }
 
 extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index dc80041f7363..cb5f1bfb52de 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -12,7 +12,7 @@ endif
 
 CFLAGS_REMOVE_return_address.o = -pg
 
-obj-y	:= debugtraps.o dma-nommu.o dumpstack.o 		\
+obj-y	:= debugtraps.o dumpstack.o 		\
 	   idle.o io.o irq.o irq_$(BITS).o kdebugfs.o			\
 	   machvec.o nmi_debug.o process.o				\
 	   process_$(BITS).o ptrace.o ptrace_$(BITS).o			\
@@ -45,7 +45,7 @@ obj-$(CONFIG_DUMP_CODE)		+= disassemble.o
 obj-$(CONFIG_HIBERNATION)	+= swsusp.o
 obj-$(CONFIG_DWARF_UNWINDER)	+= dwarf.o
 obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_callchain.o
-
+obj-$(CONFIG_DMA_NONCOHERENT)	+= dma-nommu.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)		+= hw_breakpoint.o
 
 ccflags-y := -Werror
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 79a9edafa5b0..d8689b1cb743 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -51,7 +51,6 @@ static int nommu_map_sg(struct device *dev, struct scatterlist *sg,
 	return nents;
 }
 
-#ifdef CONFIG_DMA_NONCOHERENT
 static void nommu_sync_single_for_device(struct device *dev, dma_addr_t addr,
 			      size_t size, enum dma_data_direction dir)
 {
@@ -67,16 +66,13 @@ static void nommu_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
 	for_each_sg(sg, s, nelems, i)
 		sh_sync_dma_for_device(sg_virt(s), s->length, dir);
 }
-#endif
 
 const struct dma_map_ops nommu_dma_ops = {
 	.alloc			= dma_generic_alloc_coherent,
 	.free			= dma_generic_free_coherent,
 	.map_page		= nommu_map_page,
 	.map_sg			= nommu_map_sg,
-#ifdef CONFIG_DMA_NONCOHERENT
 	.sync_single_for_device	= nommu_sync_single_for_device,
 	.sync_sg_for_device	= nommu_sync_sg_for_device,
-#endif
 };
 EXPORT_SYMBOL(nommu_dma_ops);
-- 
2.17.0



From - Thu Nov 08 21:41:30 2018
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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 20/25] sh: use generic dma_noncoherent_ops
Date: Tue, 22 May 2018 14:04:25 +0200
Lines: 241
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Xref: news.gmane.org gmane.linux.kernel:2773749 gmane.linux.kernel.iommu:24483 gmane.linux.kernel.cross-arch:44292 gmane.linux.ports.alpha:5072 gmane.linux.kernel.arc:3928 gmane.linux.ports.arm.kernel:652011 gmane.linux.ports.hexagon:1751 gmane.linux.ports.parisc:28645 gmane.linux.ports.sh.devel:57063 gmane.linux.ports.sparc:27900
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2773749>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sh/Kconfig                   |  3 +-
 arch/sh/include/asm/Kbuild        |  1 +
 arch/sh/include/asm/dma-mapping.h | 26 -----------
 arch/sh/kernel/Makefile           |  2 +-
 arch/sh/kernel/dma-coherent.c     | 23 +++++----
 arch/sh/kernel/dma-nommu.c        | 78 -------------------------------
 6 files changed, 15 insertions(+), 118 deletions(-)
 delete mode 100644 arch/sh/include/asm/dma-mapping.h
 delete mode 100644 arch/sh/kernel/dma-nommu.c

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index d0b095323d62..9809e0604af3 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -49,7 +49,6 @@ config SUPERH
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select HAVE_NMI
-	select NEED_DMA_MAP_STATE
 	select NEED_SG_DMA_LENGTH
 
 	help
@@ -162,6 +161,8 @@ config DMA_COHERENT
 
 config DMA_NONCOHERENT
 	def_bool !DMA_COHERENT
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select DMA_NONCOHERENT_OPS
 
 config PGTABLE_LEVELS
 	default 3 if X2TLB
diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index 1efcce74997b..50f7e878ea1b 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -1,6 +1,7 @@
 generic-y += current.h
 generic-y += delay.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += irq_regs.h
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
deleted file mode 100644
index 1ebc6a4eb1c5..000000000000
--- a/arch/sh/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_SH_DMA_MAPPING_H
-#define __ASM_SH_DMA_MAPPING_H
-
-extern const struct dma_map_ops nommu_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-#ifdef CONFIG_DMA_NONCOHERENT
-	return &nommu_dma_ops;
-#else
-	return &dma_direct_ops;
-#endif
-}
-
-extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-					dma_addr_t *dma_addr, gfp_t flag,
-					unsigned long attrs);
-extern void dma_generic_free_coherent(struct device *dev, size_t size,
-				      void *vaddr, dma_addr_t dma_handle,
-				      unsigned long attrs);
-
-void sh_sync_dma_for_device(void *vaddr, size_t size,
-	    enum dma_data_direction dir);
-
-#endif /* __ASM_SH_DMA_MAPPING_H */
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index d5ddb64bfffe..59673f8a3379 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -45,7 +45,7 @@ obj-$(CONFIG_DUMP_CODE)		+= disassemble.o
 obj-$(CONFIG_HIBERNATION)	+= swsusp.o
 obj-$(CONFIG_DWARF_UNWINDER)	+= dwarf.o
 obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_callchain.o
-obj-$(CONFIG_DMA_NONCOHERENT)	+= dma-nommu.o dma-coherent.o
+obj-$(CONFIG_DMA_NONCOHERENT)	+= dma-coherent.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)		+= hw_breakpoint.o
 
 ccflags-y := -Werror
diff --git a/arch/sh/kernel/dma-coherent.c b/arch/sh/kernel/dma-coherent.c
index 4f41e5cd5207..67b9c9e6e43a 100644
--- a/arch/sh/kernel/dma-coherent.c
+++ b/arch/sh/kernel/dma-coherent.c
@@ -7,14 +7,13 @@
  */
 #include <linux/mm.h>
 #include <linux/init.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/module.h>
 #include <asm/cacheflush.h>
 #include <asm/addrspace.h>
 
-void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-				 dma_addr_t *dma_handle, gfp_t gfp,
-				 unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret, *ret_nocache;
 	int order = get_order(size);
@@ -29,7 +28,8 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 	 * Pages from the page allocator may have data present in
 	 * cache. So flush the cache before using uncached memory.
 	 */
-	sh_sync_dma_for_device(ret, size, DMA_BIDIRECTIONAL);
+	arch_sync_dma_for_device(dev, virt_to_phys(ret), size,
+			DMA_BIDIRECTIONAL);
 
 	ret_nocache = (void __force *)ioremap_nocache(virt_to_phys(ret), size);
 	if (!ret_nocache) {
@@ -44,9 +44,8 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 	return ret_nocache;
 }
 
-void dma_generic_free_coherent(struct device *dev, size_t size,
-			       void *vaddr, dma_addr_t dma_handle,
-			       unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, unsigned long attrs)
 {
 	int order = get_order(size);
 	unsigned long pfn = (dma_handle >> PAGE_SHIFT) + dev->dma_pfn_offset;
@@ -58,12 +57,12 @@ void dma_generic_free_coherent(struct device *dev, size_t size,
 	iounmap(vaddr);
 }
 
-void sh_sync_dma_for_device(void *vaddr, size_t size,
-		    enum dma_data_direction direction)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	void *addr = sh_cacheop_vaddr(vaddr);
+	void *addr = sh_cacheop_vaddr(phys_to_virt(paddr));
 
-	switch (direction) {
+	switch (dir) {
 	case DMA_FROM_DEVICE:		/* invalidate only */
 		__flush_invalidate_region(addr, size);
 		break;
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
deleted file mode 100644
index d8689b1cb743..000000000000
--- a/arch/sh/kernel/dma-nommu.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * DMA mapping support for platforms lacking IOMMUs.
- *
- * Copyright (C) 2009  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/dma-mapping.h>
-#include <linux/io.h>
-#include <asm/cacheflush.h>
-
-static dma_addr_t nommu_map_page(struct device *dev, struct page *page,
-				 unsigned long offset, size_t size,
-				 enum dma_data_direction dir,
-				 unsigned long attrs)
-{
-	dma_addr_t addr = page_to_phys(page) + offset
-		- PFN_PHYS(dev->dma_pfn_offset);
-
-	WARN_ON(size == 0);
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		sh_sync_dma_for_device(page_address(page) + offset, size, dir);
-
-	return addr;
-}
-
-static int nommu_map_sg(struct device *dev, struct scatterlist *sg,
-			int nents, enum dma_data_direction dir,
-			unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	WARN_ON(nents == 0 || sg[0].length == 0);
-
-	for_each_sg(sg, s, nents, i) {
-		dma_addr_t offset = PFN_PHYS(dev->dma_pfn_offset);
-
-		BUG_ON(!sg_page(s));
-
-		if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-			sh_sync_dma_for_device(sg_virt(s), s->length, dir);
-
-		s->dma_address = sg_phys(s) - offset;
-		s->dma_length = s->length;
-	}
-
-	return nents;
-}
-
-static void nommu_sync_single_for_device(struct device *dev, dma_addr_t addr,
-			      size_t size, enum dma_data_direction dir)
-{
-	sh_sync_dma_for_device(phys_to_virt(addr), size, dir);
-}
-
-static void nommu_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-			  int nelems, enum dma_data_direction dir)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nelems, i)
-		sh_sync_dma_for_device(sg_virt(s), s->length, dir);
-}
-
-const struct dma_map_ops nommu_dma_ops = {
-	.alloc			= dma_generic_alloc_coherent,
-	.free			= dma_generic_free_coherent,
-	.map_page		= nommu_map_page,
-	.map_sg			= nommu_map_sg,
-	.sync_single_for_device	= nommu_sync_single_for_device,
-	.sync_sg_for_device	= nommu_sync_sg_for_device,
-};
-EXPORT_SYMBOL(nommu_dma_ops);
-- 
2.17.0



From - Thu Nov 08 21:41:31 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH 22/25] sparc: use generic dma_noncoherent_ops
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2773750>

Switch to the generic noncoherent direct mapping implementation.

This removes the previous sync_single_for_device implementation, which
looks bogus given that no syncing is happening in the similar but more
important map_single case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sparc/Kconfig                   |   2 +
 arch/sparc/include/asm/dma-mapping.h |   5 +-
 arch/sparc/kernel/ioport.c           | 151 ++-------------------------
 3 files changed, 14 insertions(+), 144 deletions(-)

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 435dbc033afe..0889b4eabf8b 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -48,6 +48,8 @@ config SPARC
 
 config SPARC32
 	def_bool !64BIT
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select DMA_NONCOHERENT_OPS
 	select GENERIC_ATOMIC64
 	select CLZ_TAB
 	select HAVE_UID16
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 12ae33daf52f..e17566376934 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -7,7 +7,6 @@
 #include <linux/dma-debug.h>
 
 extern const struct dma_map_ops *dma_ops;
-extern const struct dma_map_ops pci32_dma_ops;
 
 extern struct bus_type pci_bus_type;
 
@@ -15,11 +14,11 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
 #ifdef CONFIG_SPARC_LEON
 	if (sparc_cpu_model == sparc_leon)
-		return &pci32_dma_ops;
+		return &dma_noncoherent_ops;
 #endif
 #if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
 	if (bus == &pci_bus_type)
-		return &pci32_dma_ops;
+		return &dma_noncoherent_ops;
 #endif
 	return dma_ops;
 }
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 3bcef9ce74df..7954512c42e7 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -38,6 +38,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/scatterlist.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/of_device.h>
 
 #include <asm/io.h>
@@ -434,9 +435,8 @@ arch_initcall(sparc_register_ioport);
 /* Allocate and map kernel buffer using consistent mode DMA for a device.
  * hwdev should be valid struct pci_dev pointer for PCI devices.
  */
-static void *pci32_alloc_coherent(struct device *dev, size_t len,
-				  dma_addr_t *pba, gfp_t gfp,
-				  unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t len, dma_addr_t *pba, gfp_t gfp,
+		unsigned long attrs)
 {
 	unsigned long len_total = PAGE_ALIGN(len);
 	void *va;
@@ -488,8 +488,8 @@ static void *pci32_alloc_coherent(struct device *dev, size_t len,
  * References to the memory and mappings associated with cpu_addr/dma_addr
  * past this call are illegal.
  */
-static void pci32_free_coherent(struct device *dev, size_t n, void *p,
-				dma_addr_t ba, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t n, void *p, dma_addr_t ba,
+		unsigned long attrs)
 {
 	struct resource *res;
 
@@ -519,146 +519,15 @@ static void pci32_free_coherent(struct device *dev, size_t n, void *p,
 	free_pages((unsigned long)phys_to_virt(ba), get_order(n));
 }
 
-/*
- * Same as pci_map_single, but with pages.
- */
-static dma_addr_t pci32_map_page(struct device *dev, struct page *page,
-				 unsigned long offset, size_t size,
-				 enum dma_data_direction dir,
-				 unsigned long attrs)
-{
-	/* IIep is write-through, not flushing. */
-	return page_to_phys(page) + offset;
-}
-
-static void pci32_unmap_page(struct device *dev, dma_addr_t ba, size_t size,
-			     enum dma_data_direction dir, unsigned long attrs)
-{
-	if (dir != PCI_DMA_TODEVICE && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		dma_make_coherent(ba, PAGE_ALIGN(size));
-}
-
-/* Map a set of buffers described by scatterlist in streaming
- * mode for DMA.  This is the scatter-gather version of the
- * above pci_map_single interface.  Here the scatter gather list
- * elements are each tagged with the appropriate dma address
- * and length.  They are obtained via sg_dma_{address,length}(SG).
- *
- * NOTE: An implementation may be able to use a smaller number of
- *       DMA address/length pairs than there are SG table elements.
- *       (for example via virtual mapping capabilities)
- *       The routine returns the number of addr/length pairs actually
- *       used, at most nents.
- *
- * Device ownership issues as mentioned above for pci_map_single are
- * the same here.
- */
-static int pci32_map_sg(struct device *device, struct scatterlist *sgl,
-			int nents, enum dma_data_direction dir,
-			unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int n;
-
-	/* IIep is write-through, not flushing. */
-	for_each_sg(sgl, sg, nents, n) {
-		sg->dma_address = sg_phys(sg);
-		sg->dma_length = sg->length;
-	}
-	return nents;
-}
-
-/* Unmap a set of streaming mode DMA translations.
- * Again, cpu read rules concerning calls here are the same as for
- * pci_unmap_single() above.
- */
-static void pci32_unmap_sg(struct device *dev, struct scatterlist *sgl,
-			   int nents, enum dma_data_direction dir,
-			   unsigned long attrs)
-{
-	struct scatterlist *sg;
-	int n;
-
-	if (dir != PCI_DMA_TODEVICE && !(attrs & DMA_ATTR_SKIP_CPU_SYNC)) {
-		for_each_sg(sgl, sg, nents, n) {
-			dma_make_coherent(sg_phys(sg), PAGE_ALIGN(sg->length));
-		}
-	}
-}
+/* IIep is write-through, not flushing on cpu to device transfer. */
 
-/* Make physical memory consistent for a single
- * streaming mode DMA translation before or after a transfer.
- *
- * If you perform a pci_map_single() but wish to interrogate the
- * buffer using the cpu, yet do not wish to teardown the PCI dma
- * mapping, you must call this function before doing so.  At the
- * next point you give the PCI dma address back to the card, you
- * must first perform a pci_dma_sync_for_device, and then the
- * device again owns the buffer.
- */
-static void pci32_sync_single_for_cpu(struct device *dev, dma_addr_t ba,
-				      size_t size, enum dma_data_direction dir)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	if (dir != PCI_DMA_TODEVICE) {
-		dma_make_coherent(ba, PAGE_ALIGN(size));
-	}
-}
-
-static void pci32_sync_single_for_device(struct device *dev, dma_addr_t ba,
-					 size_t size, enum dma_data_direction dir)
-{
-	if (dir != PCI_DMA_TODEVICE) {
-		dma_make_coherent(ba, PAGE_ALIGN(size));
-	}
+	if (dir != PCI_DMA_TODEVICE)
+		dma_make_coherent(paddr, PAGE_ALIGN(size));
 }
 
-/* Make physical memory consistent for a set of streaming
- * mode DMA translations after a transfer.
- *
- * The same as pci_dma_sync_single_* but for a scatter-gather list,
- * same rules and usage.
- */
-static void pci32_sync_sg_for_cpu(struct device *dev, struct scatterlist *sgl,
-				  int nents, enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int n;
-
-	if (dir != PCI_DMA_TODEVICE) {
-		for_each_sg(sgl, sg, nents, n) {
-			dma_make_coherent(sg_phys(sg), PAGE_ALIGN(sg->length));
-		}
-	}
-}
-
-static void pci32_sync_sg_for_device(struct device *device, struct scatterlist *sgl,
-				     int nents, enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int n;
-
-	if (dir != PCI_DMA_TODEVICE) {
-		for_each_sg(sgl, sg, nents, n) {
-			dma_make_coherent(sg_phys(sg), PAGE_ALIGN(sg->length));
-		}
-	}
-}
-
-/* note: leon re-uses pci32_dma_ops */
-const struct dma_map_ops pci32_dma_ops = {
-	.alloc			= pci32_alloc_coherent,
-	.free			= pci32_free_coherent,
-	.map_page		= pci32_map_page,
-	.unmap_page		= pci32_unmap_page,
-	.map_sg			= pci32_map_sg,
-	.unmap_sg		= pci32_unmap_sg,
-	.sync_single_for_cpu	= pci32_sync_single_for_cpu,
-	.sync_single_for_device	= pci32_sync_single_for_device,
-	.sync_sg_for_cpu	= pci32_sync_sg_for_cpu,
-	.sync_sg_for_device	= pci32_sync_sg_for_device,
-};
-EXPORT_SYMBOL(pci32_dma_ops);
-
 const struct dma_map_ops *dma_ops = &sbus_dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
-- 
2.17.0



From - Thu Nov 08 21:41:31 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH 24/25] parisc: always use flush_kernel_dcache_range for DMA cache maintainance
Date: Tue, 22 May 2018 14:04:29 +0200
Lines: 48
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2773751>

Current the S/G list based DMA ops use flush_kernel_vmap_range which
contains a few UP optimizations, while the rest of the DMA operations
uses flush_kernel_dcache_range.  The single vs sg operations are supposed
to have the same effect, so they should use the same routines.  Use
the more conservation version for now, but if people more familiar with
parisc think the vmap version is generally fine for DMA we should switch
all interfaces over to it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/parisc/kernel/pci-dma.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 52304cb290f9..4d7506336918 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -550,7 +550,7 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
 	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
+		flush_kernel_dcache_range(sg_virt(sg), sg->length);
 }
 
 static void pa11_dma_sync_single_for_cpu(struct device *dev,
@@ -581,7 +581,7 @@ static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sgl
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
 	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
+		flush_kernel_dcache_range(sg_virt(sg), sg->length);
 }
 
 static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
@@ -592,7 +592,7 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
 	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
+		flush_kernel_dcache_range(sg_virt(sg), sg->length);
 }
 
 static void pa11_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
-- 
2.17.0



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Subject: [PATCH 25/25] parisc: use generic dma_noncoherent_ops
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2773752>

Switch to the generic noncoherent direct mapping implementation.

Fix sync_single_for_cpu to do skip the cache flush unless the transfer
is to the device to match the more tested unmap_single path which should
have the same cache coherency implications.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/parisc/Kconfig                   |   4 +
 arch/parisc/include/asm/dma-mapping.h |   4 -
 arch/parisc/kernel/pci-dma.c          | 145 ++------------------------
 arch/parisc/kernel/setup.c            |   2 +-
 4 files changed, 16 insertions(+), 139 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 4d8f64d48597..4993c6dc8358 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -188,6 +188,10 @@ config PA20
 config PA11
 	def_bool y
 	depends on PA7000 || PA7100LC || PA7200 || PA7300LC
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select DMA_NONCOHERENT_OPS
+	select DMA_NONCOHERENT_CACHE_SYNC
 
 config PREFETCH
 	def_bool y
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index eeec8dd18e74..44a9f97194aa 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -21,10 +21,6 @@
 ** flush/purge and allocate "regular" cacheable pages for everything.
 */
 
-#ifdef CONFIG_PA11
-extern const struct dma_map_ops pa11_dma_ops;
-#endif
-
 extern const struct dma_map_ops *hppa_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 4d7506336918..87a7926cda6f 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -21,13 +21,12 @@
 #include <linux/init.h>
 #include <linux/gfp.h>
 #include <linux/mm.h>
-#include <linux/pci.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/string.h>
 #include <linux/types.h>
-#include <linux/scatterlist.h>
-#include <linux/export.h>
+#include <linux/dma-direct.h>
+#include <linux/dma-noncoherent.h>
 
 #include <asm/cacheflush.h>
 #include <asm/dma.h>    /* for DMA_CHUNK_SIZE */
@@ -450,7 +449,7 @@ static void *pcx_dma_alloc(struct device *dev, size_t size,
 	return addr;
 }
 
-static void *pa11_dma_alloc(struct device *dev, size_t size,
+void *arch_dma_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
 
@@ -460,7 +459,7 @@ static void *pa11_dma_alloc(struct device *dev, size_t size,
 		return pcx_dma_alloc(dev, size, dma_handle, gfp, attrs);
 }
 
-static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
 	int order = get_order(size);
@@ -475,142 +474,20 @@ static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
 	free_pages((unsigned long)vaddr, get_order(size));
 }
 
-static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
-		unsigned long offset, size_t size,
-		enum dma_data_direction direction, unsigned long attrs)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	void *addr = page_address(page) + offset;
-	BUG_ON(direction == DMA_NONE);
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		flush_kernel_dcache_range((unsigned long) addr, size);
-
-	return virt_to_phys(addr);
-}
-
-static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
-		size_t size, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return;
-
-	if (direction == DMA_TO_DEVICE)
-		return;
-
-	/*
-	 * For PCI_DMA_FROMDEVICE this flush is not necessary for the
-	 * simple map/unmap case. However, it IS necessary if if
-	 * pci_dma_sync_single_* has been called and the buffer reused.
-	 */
-
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle), size);
-}
-
-static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	int i;
-	struct scatterlist *sg;
-
-	BUG_ON(direction == DMA_NONE);
-
-	for_each_sg(sglist, sg, nents, i) {
-		unsigned long vaddr = (unsigned long)sg_virt(sg);
-
-		sg_dma_address(sg) = (dma_addr_t) virt_to_phys(vaddr);
-		sg_dma_len(sg) = sg->length;
-
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		flush_kernel_dcache_range(vaddr, sg->length);
-	}
-	return nents;
-}
-
-static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	int i;
-	struct scatterlist *sg;
-
-	BUG_ON(direction == DMA_NONE);
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return;
-
-	if (direction == DMA_TO_DEVICE)
-		return;
-
-	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
-
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_dcache_range(sg_virt(sg), sg->length);
-}
-
-static void pa11_dma_sync_single_for_cpu(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
-			size);
-}
-
-static void pa11_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
-			size);
-}
-
-static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
-{
-	int i;
-	struct scatterlist *sg;
-
-	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
-
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_dcache_range(sg_virt(sg), sg->length);
+	flush_kernel_dcache_range((unsigned long)phys_to_virt(paddr), size);
 }
 
-static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	int i;
-	struct scatterlist *sg;
-
-	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
-
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_dcache_range(sg_virt(sg), sg->length);
+	flush_kernel_dcache_range((unsigned long)phys_to_virt(paddr), size);
 }
 
-static void pa11_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	       enum dma_data_direction direction)
 {
 	flush_kernel_dcache_range((unsigned long)vaddr, size);
 }
-
-const struct dma_map_ops pa11_dma_ops = {
-	.alloc =		pa11_dma_alloc,
-	.free =			pa11_dma_free,
-	.map_page =		pa11_dma_map_page,
-	.unmap_page =		pa11_dma_unmap_page,
-	.map_sg =		pa11_dma_map_sg,
-	.unmap_sg =		pa11_dma_unmap_sg,
-	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
-	.sync_single_for_device = pa11_dma_sync_single_for_device,
-	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
-	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
-	.cache_sync =		pa11_dma_cache_sync,
-};
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 5c8450a22255..4e87c35c22b7 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -102,7 +102,7 @@ void __init dma_ops_init(void)
 	case pcxl: /* falls through */
 	case pcxs:
 	case pcxt:
-		hppa_dma_ops = &pa11_dma_ops;
+		hppa_dma_ops = &dma_noncoherent_ops;
 		break;
 	default:
 		break;
-- 
2.17.0



From - Thu Nov 08 21:41:31 2018
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From: Christoph Hellwig <hch@lst.de>
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Subject: [PATCH 21/25] xtensa: use generic dma_noncoherent_ops
Date: Tue, 22 May 2018 14:04:26 +0200
Lines: 278
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2773753>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/xtensa/Kconfig                   |   3 +
 arch/xtensa/include/asm/Kbuild        |   1 +
 arch/xtensa/include/asm/dma-mapping.h |  26 ------
 arch/xtensa/kernel/pci-dma.c          | 130 +++-----------------------
 4 files changed, 19 insertions(+), 141 deletions(-)
 delete mode 100644 arch/xtensa/include/asm/dma-mapping.h

diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 17df332269b2..ef114648e954 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -5,11 +5,14 @@ config ZONE_DMA
 config XTENSA
 	def_bool y
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_WANT_FRAME_POINTERS
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select BUILDTIME_EXTABLE_SORT
 	select CLONE_BACKWARDS
 	select COMMON_CLK
+	select DMA_NONCOHERENT_OPS
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_IRQ_SHOW
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index 436b20337168..a8d6cd3bee4b 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -2,6 +2,7 @@ generic-y += bug.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma-contiguous.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
deleted file mode 100644
index 44098800dad7..000000000000
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2003 - 2005 Tensilica Inc.
- * Copyright (C) 2015 Cadence Design Systems Inc.
- */
-
-#ifndef _XTENSA_DMA_MAPPING_H
-#define _XTENSA_DMA_MAPPING_H
-
-#include <asm/cache.h>
-#include <asm/io.h>
-
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-
-extern const struct dma_map_ops xtensa_dma_map_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &xtensa_dma_map_ops;
-}
-
-#endif	/* _XTENSA_DMA_MAPPING_H */
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index 392b4a80ebc2..a83d60e92908 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -16,26 +16,24 @@
  */
 
 #include <linux/dma-contiguous.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/dma-direct.h>
 #include <linux/gfp.h>
 #include <linux/highmem.h>
 #include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/string.h>
 #include <linux/types.h>
 #include <asm/cacheflush.h>
 #include <asm/io.h>
 
-static void do_cache_op(dma_addr_t dma_handle, size_t size,
+static void do_cache_op(phys_addr_t paddr, size_t size,
 			void (*fn)(unsigned long, unsigned long))
 {
-	unsigned long off = dma_handle & (PAGE_SIZE - 1);
-	unsigned long pfn = PFN_DOWN(dma_handle);
+	unsigned long off = paddr & (PAGE_SIZE - 1);
+	unsigned long pfn = PFN_DOWN(paddr);
 	struct page *page = pfn_to_page(pfn);
 
 	if (!PageHighMem(page))
-		fn((unsigned long)bus_to_virt(dma_handle), size);
+		fn((unsigned long)phys_to_virt(paddr), size);
 	else
 		while (size > 0) {
 			size_t sz = min_t(size_t, size, PAGE_SIZE - off);
@@ -49,14 +47,13 @@ static void do_cache_op(dma_addr_t dma_handle, size_t size,
 		}
 }
 
-static void xtensa_sync_single_for_cpu(struct device *dev,
-				       dma_addr_t dma_handle, size_t size,
-				       enum dma_data_direction dir)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
 	switch (dir) {
 	case DMA_BIDIRECTIONAL:
 	case DMA_FROM_DEVICE:
-		do_cache_op(dma_handle, size, __invalidate_dcache_range);
+		do_cache_op(paddr, size, __invalidate_dcache_range);
 		break;
 
 	case DMA_NONE:
@@ -68,15 +65,14 @@ static void xtensa_sync_single_for_cpu(struct device *dev,
 	}
 }
 
-static void xtensa_sync_single_for_device(struct device *dev,
-					  dma_addr_t dma_handle, size_t size,
-					  enum dma_data_direction dir)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
 	switch (dir) {
 	case DMA_BIDIRECTIONAL:
 	case DMA_TO_DEVICE:
 		if (XCHAL_DCACHE_IS_WRITEBACK)
-			do_cache_op(dma_handle, size, __flush_dcache_range);
+			do_cache_op(paddr, size, __flush_dcache_range);
 		break;
 
 	case DMA_NONE:
@@ -88,40 +84,13 @@ static void xtensa_sync_single_for_device(struct device *dev,
 	}
 }
 
-static void xtensa_sync_sg_for_cpu(struct device *dev,
-				   struct scatterlist *sg, int nents,
-				   enum dma_data_direction dir)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		xtensa_sync_single_for_cpu(dev, sg_dma_address(s),
-					   sg_dma_len(s), dir);
-	}
-}
-
-static void xtensa_sync_sg_for_device(struct device *dev,
-				      struct scatterlist *sg, int nents,
-				      enum dma_data_direction dir)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		xtensa_sync_single_for_device(dev, sg_dma_address(s),
-					      sg_dma_len(s), dir);
-	}
-}
-
 /*
  * Note: We assume that the full memory space is always mapped to 'kseg'
  *	 Otherwise we have to use page attributes (not implemented).
  */
 
-static void *xtensa_dma_alloc(struct device *dev, size_t size,
-			      dma_addr_t *handle, gfp_t flag,
-			      unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+		gfp_t flag, unsigned long attrs)
 {
 	unsigned long ret;
 	unsigned long uncached;
@@ -171,8 +140,8 @@ static void *xtensa_dma_alloc(struct device *dev, size_t size,
 	return (void *)uncached;
 }
 
-static void xtensa_dma_free(struct device *dev, size_t size, void *vaddr,
-			    dma_addr_t dma_handle, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, unsigned long attrs)
 {
 	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	unsigned long addr = (unsigned long)vaddr;
@@ -192,72 +161,3 @@ static void xtensa_dma_free(struct device *dev, size_t size, void *vaddr,
 	if (!dma_release_from_contiguous(dev, page, count))
 		__free_pages(page, get_order(size));
 }
-
-static dma_addr_t xtensa_map_page(struct device *dev, struct page *page,
-				  unsigned long offset, size_t size,
-				  enum dma_data_direction dir,
-				  unsigned long attrs)
-{
-	dma_addr_t dma_handle = page_to_phys(page) + offset;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		xtensa_sync_single_for_device(dev, dma_handle, size, dir);
-
-	return dma_handle;
-}
-
-static void xtensa_unmap_page(struct device *dev, dma_addr_t dma_handle,
-			      size_t size, enum dma_data_direction dir,
-			      unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		xtensa_sync_single_for_cpu(dev, dma_handle, size, dir);
-}
-
-static int xtensa_map_sg(struct device *dev, struct scatterlist *sg,
-			 int nents, enum dma_data_direction dir,
-			 unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		s->dma_address = xtensa_map_page(dev, sg_page(s), s->offset,
-						 s->length, dir, attrs);
-	}
-	return nents;
-}
-
-static void xtensa_unmap_sg(struct device *dev,
-			    struct scatterlist *sg, int nents,
-			    enum dma_data_direction dir,
-			    unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		xtensa_unmap_page(dev, sg_dma_address(s),
-				  sg_dma_len(s), dir, attrs);
-	}
-}
-
-int xtensa_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return 0;
-}
-
-const struct dma_map_ops xtensa_dma_map_ops = {
-	.alloc = xtensa_dma_alloc,
-	.free = xtensa_dma_free,
-	.map_page = xtensa_map_page,
-	.unmap_page = xtensa_unmap_page,
-	.map_sg = xtensa_map_sg,
-	.unmap_sg = xtensa_unmap_sg,
-	.sync_single_for_cpu = xtensa_sync_single_for_cpu,
-	.sync_single_for_device = xtensa_sync_single_for_device,
-	.sync_sg_for_cpu = xtensa_sync_sg_for_cpu,
-	.sync_sg_for_device = xtensa_sync_sg_for_device,
-	.mapping_error = xtensa_dma_mapping_error,
-};
-EXPORT_SYMBOL(xtensa_dma_map_ops);
-- 
2.17.0



From - Thu Nov 08 21:41:31 2018
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Subject: [PATCH 23/25] parisc: merge pcx_dma_ops and pcxl_dma_ops
Date: Tue, 22 May 2018 14:04:28 +0200
Lines: 201
Approved: news@gmane.org
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        Greentime Hu <green.hu@gmail.com>,
        Vincent Chen <deanbo422@gmail.com>,
        linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org,
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The only difference is that pcxl supports dma coherent allocations, while
pcx only supports non-consistent allocations and otherwise fails.

But dma_alloc* is not in the fast path, and merging these two allows an
easy migration path to the generic dma-noncoherent implementation, so
do it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/parisc/include/asm/dma-mapping.h |  3 +-
 arch/parisc/kernel/pci-dma.c          | 80 ++++++++++++---------------
 arch/parisc/kernel/setup.c            |  8 +--
 arch/parisc/mm/init.c                 | 11 +---
 4 files changed, 43 insertions(+), 59 deletions(-)

diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 01e1fc057c83..eeec8dd18e74 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -22,8 +22,7 @@
 */
 
 #ifdef CONFIG_PA11
-extern const struct dma_map_ops pcxl_dma_ops;
-extern const struct dma_map_ops pcx_dma_ops;
+extern const struct dma_map_ops pa11_dma_ops;
 #endif
 
 extern const struct dma_map_ops *hppa_dma_ops;
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 91bc0cac03a1..52304cb290f9 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -408,7 +408,7 @@ pcxl_dma_init(void)
 
 __initcall(pcxl_dma_init);
 
-static void *pa11_dma_alloc(struct device *dev, size_t size,
+static void *pcxl_dma_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
 {
 	unsigned long vaddr;
@@ -435,16 +435,44 @@ static void *pa11_dma_alloc(struct device *dev, size_t size,
 	return (void *)vaddr;
 }
 
+static void *pcx_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
+{
+	void *addr;
+
+	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0)
+		return NULL;
+
+	addr = (void *)__get_free_pages(flag, get_order(size));
+	if (addr)
+		*dma_handle = (dma_addr_t)virt_to_phys(addr);
+
+	return addr;
+}
+
+static void *pa11_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+{
+
+	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl)
+		return pcxl_dma_alloc(dev, size, dma_handle, gfp, attrs);
+	else
+		return pcx_dma_alloc(dev, size, dma_handle, gfp, attrs);
+}
+
 static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
-	int order;
+	int order = get_order(size);
 
-	order = get_order(size);
-	size = 1 << (order + PAGE_SHIFT);
-	unmap_uncached_pages((unsigned long)vaddr, size);
-	pcxl_free_range((unsigned long)vaddr, size);
-	free_pages((unsigned long)__va(dma_handle), order);
+	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl) {
+		size = 1 << (order + PAGE_SHIFT);
+		unmap_uncached_pages((unsigned long)vaddr, size);
+		pcxl_free_range((unsigned long)vaddr, size);
+
+		vaddr = __va(dma_handle);
+	}
+	free_pages((unsigned long)vaddr, get_order(size));
 }
 
 static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
@@ -573,7 +601,7 @@ static void pa11_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	flush_kernel_dcache_range((unsigned long)vaddr, size);
 }
 
-const struct dma_map_ops pcxl_dma_ops = {
+const struct dma_map_ops pa11_dma_ops = {
 	.alloc =		pa11_dma_alloc,
 	.free =			pa11_dma_free,
 	.map_page =		pa11_dma_map_page,
@@ -586,39 +614,3 @@ const struct dma_map_ops pcxl_dma_ops = {
 	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
 	.cache_sync =		pa11_dma_cache_sync,
 };
-
-static void *pcx_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
-{
-	void *addr;
-
-	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0)
-		return NULL;
-
-	addr = (void *)__get_free_pages(flag, get_order(size));
-	if (addr)
-		*dma_handle = (dma_addr_t)virt_to_phys(addr);
-
-	return addr;
-}
-
-static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t iova, unsigned long attrs)
-{
-	free_pages((unsigned long)vaddr, get_order(size));
-	return;
-}
-
-const struct dma_map_ops pcx_dma_ops = {
-	.alloc =		pcx_dma_alloc,
-	.free =			pcx_dma_free,
-	.map_page =		pa11_dma_map_page,
-	.unmap_page =		pa11_dma_unmap_page,
-	.map_sg =		pa11_dma_map_sg,
-	.unmap_sg =		pa11_dma_unmap_sg,
-	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
-	.sync_single_for_device = pa11_dma_sync_single_for_device,
-	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
-	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
-	.cache_sync =		pa11_dma_cache_sync,
-};
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 8d3a7b80ac42..5c8450a22255 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -97,14 +97,12 @@ void __init dma_ops_init(void)
 		panic(	"PA-RISC Linux currently only supports machines that conform to\n"
 			"the PA-RISC 1.1 or 2.0 architecture specification.\n");
 
-	case pcxs:
-	case pcxt:
-		hppa_dma_ops = &pcx_dma_ops;
-		break;
 	case pcxl2:
 		pa7300lc_init();
 	case pcxl: /* falls through */
-		hppa_dma_ops = &pcxl_dma_ops;
+	case pcxs:
+	case pcxt:
+		hppa_dma_ops = &pa11_dma_ops;
 		break;
 	default:
 		break;
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index cab32ee824d2..4ad91c28ecbe 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -19,7 +19,6 @@
 #include <linux/gfp.h>
 #include <linux/delay.h>
 #include <linux/init.h>
-#include <linux/pci.h>		/* for hppa_dma_ops and pcxl_dma_ops */
 #include <linux/initrd.h>
 #include <linux/swap.h>
 #include <linux/unistd.h>
@@ -616,17 +615,13 @@ void __init mem_init(void)
 	free_all_bootmem();
 
 #ifdef CONFIG_PA11
-	if (hppa_dma_ops == &pcxl_dma_ops) {
+	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl) {
 		pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
 		parisc_vmalloc_start = SET_MAP_OFFSET(pcxl_dma_start
 						+ PCXL_DMA_MAP_SIZE);
-	} else {
-		pcxl_dma_start = 0;
-		parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
-	}
-#else
-	parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
+	} else
 #endif
+		parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
 
 	mem_init_print_info(NULL);
 
-- 
2.17.0



From - Thu Nov 08 21:41:31 2018
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Subject: [PATCH 03/25] hexagon: use generic dma_noncoherent_ops
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24489>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/hexagon/Kconfig                   |   2 +
 arch/hexagon/include/asm/Kbuild        |   1 +
 arch/hexagon/include/asm/dma-mapping.h |  40 -------
 arch/hexagon/kernel/dma.c              | 148 ++-----------------------
 4 files changed, 11 insertions(+), 180 deletions(-)
 delete mode 100644 arch/hexagon/include/asm/dma-mapping.h

diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 37adb2003033..bcbdcb32935c 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -4,6 +4,7 @@ comment "Linux Kernel Configuration for Hexagon"
 
 config HEXAGON
 	def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select HAVE_OPROFILE
 	# Other pending projects/to-do items.
 	# select HAVE_REGS_AND_STACK_ACCESS_API
@@ -28,6 +29,7 @@ config HEXAGON
 	select GENERIC_CLOCKEVENTS_BROADCAST
 	select MODULES_USE_ELF_RELA
 	select GENERIC_CPU_DEVICES
+	select DMA_NONCOHERENT_OPS
 	---help---
 	  Qualcomm Hexagon is a processor architecture designed for high
 	  performance and low power across a wide variety of applications.
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index e9743f689fb8..843a8086e980 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += bugs.h
 generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += extable.h
 generic-y += fb.h
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
deleted file mode 100644
index 263f6acbfb0f..000000000000
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * DMA operations for the Hexagon architecture
- *
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- */
-
-#ifndef _ASM_DMA_MAPPING_H
-#define _ASM_DMA_MAPPING_H
-
-#include <linux/types.h>
-#include <linux/cache.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
-#include <asm/io.h>
-
-struct device;
-
-extern const struct dma_map_ops *dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return dma_ops;
-}
-
-#endif
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index 9e46556a227d..ffc4ae8e126f 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -18,32 +18,19 @@
  * 02110-1301, USA.
  */
 
-#include <linux/dma-mapping.h>
-#include <linux/dma-direct.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/bootmem.h>
 #include <linux/genalloc.h>
-#include <asm/dma-mapping.h>
 #include <linux/module.h>
 #include <asm/page.h>
 
-#define HEXAGON_MAPPING_ERROR	0
-
-const struct dma_map_ops *dma_ops;
-EXPORT_SYMBOL(dma_ops);
-
-static inline void *dma_addr_to_virt(dma_addr_t dma_addr)
-{
-	return phys_to_virt((unsigned long) dma_addr);
-}
-
 static struct gen_pool *coherent_pool;
 
 
 /* Allocates from a pool of uncached memory that was reserved at boot time */
 
-static void *hexagon_dma_alloc_coherent(struct device *dev, size_t size,
-				 dma_addr_t *dma_addr, gfp_t flag,
-				 unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_addr,
+		gfp_t flag, unsigned long attrs)
 {
 	void *ret;
 
@@ -75,58 +62,17 @@ static void *hexagon_dma_alloc_coherent(struct device *dev, size_t size,
 	return ret;
 }
 
-static void hexagon_free_coherent(struct device *dev, size_t size, void *vaddr,
-				  dma_addr_t dma_addr, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_addr, unsigned long attrs)
 {
 	gen_pool_free(coherent_pool, (unsigned long) vaddr, size);
 }
 
-static int check_addr(const char *name, struct device *hwdev,
-		      dma_addr_t bus, size_t size)
-{
-	if (hwdev && hwdev->dma_mask && !dma_capable(hwdev, bus, size)) {
-		if (*hwdev->dma_mask >= DMA_BIT_MASK(32))
-			printk(KERN_ERR
-				"%s: overflow %Lx+%zu of device mask %Lx\n",
-				name, (long long)bus, size,
-				(long long)*hwdev->dma_mask);
-		return 0;
-	}
-	return 1;
-}
-
-static int hexagon_map_sg(struct device *hwdev, struct scatterlist *sg,
-			  int nents, enum dma_data_direction dir,
-			  unsigned long attrs)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	struct scatterlist *s;
-	int i;
-
-	WARN_ON(nents == 0 || sg[0].length == 0);
-
-	for_each_sg(sg, s, nents, i) {
-		s->dma_address = sg_phys(s);
-		if (!check_addr("map_sg", hwdev, s->dma_address, s->length))
-			return 0;
-
-		s->dma_length = s->length;
+	void *addr = phys_to_virt(paddr);
 
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		flush_dcache_range(dma_addr_to_virt(s->dma_address),
-				   dma_addr_to_virt(s->dma_address + s->length));
-	}
-
-	return nents;
-}
-
-/*
- * address is virtual
- */
-static inline void dma_sync(void *addr, size_t size,
-			    enum dma_data_direction dir)
-{
 	switch (dir) {
 	case DMA_TO_DEVICE:
 		hexagon_clean_dcache_range((unsigned long) addr,
@@ -144,81 +90,3 @@ static inline void dma_sync(void *addr, size_t size,
 		BUG();
 	}
 }
-
-/**
- * hexagon_map_page() - maps an address for device DMA
- * @dev:	pointer to DMA device
- * @page:	pointer to page struct of DMA memory
- * @offset:	offset within page
- * @size:	size of memory to map
- * @dir:	transfer direction
- * @attrs:	pointer to DMA attrs (not used)
- *
- * Called to map a memory address to a DMA address prior
- * to accesses to/from device.
- *
- * We don't particularly have many hoops to jump through
- * so far.  Straight translation between phys and virtual.
- *
- * DMA is not cache coherent so sync is necessary; this
- * seems to be a convenient place to do it.
- *
- */
-static dma_addr_t hexagon_map_page(struct device *dev, struct page *page,
-				   unsigned long offset, size_t size,
-				   enum dma_data_direction dir,
-				   unsigned long attrs)
-{
-	dma_addr_t bus = page_to_phys(page) + offset;
-	WARN_ON(size == 0);
-
-	if (!check_addr("map_single", dev, bus, size))
-		return HEXAGON_MAPPING_ERROR;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		dma_sync(dma_addr_to_virt(bus), size, dir);
-
-	return bus;
-}
-
-static void hexagon_sync_single_for_device(struct device *dev,
-					dma_addr_t dma_handle, size_t size,
-					enum dma_data_direction dir)
-{
-	dma_sync(dma_addr_to_virt(dma_handle), size, dir);
-}
-
-static void hexagon_sync_sg_for_device(struct device *dev,
-		struct scatterlist *sgl, int nents, enum dma_data_direction dir)
-{
-	struct scatterlist *sg;
-	int i;
-
-	for_each_sg(sgl, sg, nents, i)
-		hexagon_sync_single_for_device(dev, sg_dma_address(sg),
-				sg->length, dir);
-}
-
-
-static int hexagon_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return dma_addr == HEXAGON_MAPPING_ERROR;
-}
-
-const struct dma_map_ops hexagon_dma_ops = {
-	.alloc		= hexagon_dma_alloc_coherent,
-	.free		= hexagon_free_coherent,
-	.map_sg		= hexagon_map_sg,
-	.map_page	= hexagon_map_page,
-	.sync_single_for_device = hexagon_sync_single_for_device,
-	.sync_sg_for_device = hexagon_sync_sg_for_device,
-	.mapping_error	= hexagon_mapping_error,
-};
-
-void __init hexagon_dma_init(void)
-{
-	if (dma_ops)
-		return;
-
-	dma_ops = &hexagon_dma_ops;
-}
-- 
2.17.0


From - Thu Nov 08 21:41:31 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 04/25] m68k: use generic dma_noncoherent_ops
Date: Tue, 22 May 2018 14:04:09 +0200
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Xref: news.gmane.org gmane.linux.kernel.iommu:24490 gmane.linux.kernel.cross-arch:44299 gmane.linux.ports.parisc:28652 gmane.linux.ports.sh.devel:57070 gmane.linux.ports.hexagon:1758 gmane.linux.kernel:2773764 gmane.linux.ports.alpha:5079 gmane.linux.ports.sparc:27907 gmane.linux.kernel.arc:3935 gmane.linux.ports.arm.kernel:652021
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24490>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/m68k/Kconfig                   |  2 +
 arch/m68k/include/asm/Kbuild        |  1 +
 arch/m68k/include/asm/dma-mapping.h | 12 -----
 arch/m68k/kernel/dma.c              | 68 ++++-------------------------
 4 files changed, 11 insertions(+), 72 deletions(-)
 delete mode 100644 arch/m68k/include/asm/dma-mapping.h

diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 785612b576f7..3f61327da2d5 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -2,6 +2,7 @@
 config M68K
 	bool
 	default y
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
 	select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
 	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
 	select HAVE_IDE
@@ -24,6 +25,7 @@ config M68K
 	select MODULES_USE_ELF_RELA
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
+	select DMA_NONCOHERENT_OPS if HAS_DMA
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
index 88a9d27df1ac..a853c00f1374 100644
--- a/arch/m68k/include/asm/Kbuild
+++ b/arch/m68k/include/asm/Kbuild
@@ -1,5 +1,6 @@
 generic-y += barrier.h
 generic-y += device.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
deleted file mode 100644
index e3722ed04fbb..000000000000
--- a/arch/m68k/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _M68K_DMA_MAPPING_H
-#define _M68K_DMA_MAPPING_H
-
-extern const struct dma_map_ops m68k_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-        return &m68k_dma_ops;
-}
-
-#endif  /* _M68K_DMA_MAPPING_H */
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index c01b9b8f97bf..3d561c577d35 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -6,7 +6,7 @@
 
 #undef DEBUG
 
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/scatterlist.h>
@@ -18,7 +18,7 @@
 
 #if defined(CONFIG_MMU) && !defined(CONFIG_COLDFIRE)
 
-static void *m68k_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 		gfp_t flag, unsigned long attrs)
 {
 	struct page *page, **map;
@@ -61,7 +61,7 @@ static void *m68k_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 	return addr;
 }
 
-static void m68k_dma_free(struct device *dev, size_t size, void *addr,
+void arch_dma_free(struct device *dev, size_t size, void *addr,
 		dma_addr_t handle, unsigned long attrs)
 {
 	pr_debug("dma_free_coherent: %p, %x\n", addr, handle);
@@ -72,8 +72,8 @@ static void m68k_dma_free(struct device *dev, size_t size, void *addr,
 
 #include <asm/cacheflush.h>
 
-static void *m68k_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -88,7 +88,7 @@ static void *m68k_dma_alloc(struct device *dev, size_t size,
 	return ret;
 }
 
-static void m68k_dma_free(struct device *dev, size_t size, void *vaddr,
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
 	free_pages((unsigned long)vaddr, get_order(size));
@@ -96,8 +96,8 @@ static void m68k_dma_free(struct device *dev, size_t size, void *vaddr,
 
 #endif /* CONFIG_MMU && !CONFIG_COLDFIRE */
 
-static void m68k_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t handle, size_t size, enum dma_data_direction dir)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t handle,
+		size_t size, enum dma_data_direction dir)
 {
 	switch (dir) {
 	case DMA_BIDIRECTIONAL:
@@ -113,55 +113,3 @@ static void m68k_dma_sync_single_for_device(struct device *dev,
 		break;
 	}
 }
-
-static void m68k_dma_sync_sg_for_device(struct device *dev,
-		struct scatterlist *sglist, int nents, enum dma_data_direction dir)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nents, i) {
-		dma_sync_single_for_device(dev, sg->dma_address, sg->length,
-					   dir);
-	}
-}
-
-static dma_addr_t m68k_dma_map_page(struct device *dev, struct page *page,
-		unsigned long offset, size_t size, enum dma_data_direction dir,
-		unsigned long attrs)
-{
-	dma_addr_t handle = page_to_phys(page) + offset;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		dma_sync_single_for_device(dev, handle, size, dir);
-
-	return handle;
-}
-
-static int m68k_dma_map_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction dir, unsigned long attrs)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nents, i) {
-		sg->dma_address = sg_phys(sg);
-
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		dma_sync_single_for_device(dev, sg->dma_address, sg->length,
-					   dir);
-	}
-	return nents;
-}
-
-const struct dma_map_ops m68k_dma_ops = {
-	.alloc			= m68k_dma_alloc,
-	.free			= m68k_dma_free,
-	.map_page		= m68k_dma_map_page,
-	.map_sg			= m68k_dma_map_sg,
-	.sync_single_for_device	= m68k_dma_sync_single_for_device,
-	.sync_sg_for_device	= m68k_dma_sync_sg_for_device,
-};
-EXPORT_SYMBOL(m68k_dma_ops);
-- 
2.17.0


From - Thu Nov 08 21:41:31 2018
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X-Mozilla-Keys:                                                                                 
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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.arm.kernel
Subject: [PATCH 06/25] microblaze: remove the consistent_sync and
 consistent_sync_page
Date: Tue, 22 May 2018 14:04:11 +0200
Lines: 77
Approved: news@gmane.org
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To: iommu@lists.linux-foundation.org
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Xref: news.gmane.org gmane.linux.kernel.arc:3936 gmane.linux.kernel.iommu:24491 gmane.linux.kernel.cross-arch:44300 gmane.linux.ports.parisc:28653 gmane.linux.ports.sh.devel:57071 gmane.linux.ports.hexagon:1759 gmane.linux.kernel:2773773 gmane.linux.ports.alpha:5080 gmane.linux.ports.sparc:27908 gmane.linux.ports.arm.kernel:652026
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/3936>

Both unused.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/microblaze/include/asm/pgtable.h |  3 --
 arch/microblaze/mm/consistent.c       | 45 ---------------------------
 2 files changed, 48 deletions(-)

diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index 8a2e654b709f..7b650ab14fa0 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -553,9 +553,6 @@ void __init *early_get_page(void);
 
 extern unsigned long ioremap_bot, ioremap_base;
 
-void consistent_sync(void *vaddr, size_t size, int direction);
-void consistent_sync_page(struct page *page, unsigned long offset,
-	size_t size, int direction);
 unsigned long consistent_virt_to_pfn(void *vaddr);
 
 void setup_memory(void);
diff --git a/arch/microblaze/mm/consistent.c b/arch/microblaze/mm/consistent.c
index b9a9c8c3397b..c9a278ac795a 100644
--- a/arch/microblaze/mm/consistent.c
+++ b/arch/microblaze/mm/consistent.c
@@ -220,48 +220,3 @@ void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 	flush_tlb_all();
 #endif
 }
-
-/*
- * make an area consistent.
- */
-void consistent_sync(void *vaddr, size_t size, int direction)
-{
-	unsigned long start;
-	unsigned long end;
-
-	start = (unsigned long)vaddr;
-
-	/* Convert start address back down to unshadowed memory region */
-#ifdef CONFIG_XILINX_UNCACHED_SHADOW
-	start &= ~UNCACHED_SHADOW_MASK;
-#endif
-	end = start + size;
-
-	switch (direction) {
-	case PCI_DMA_NONE:
-		BUG();
-	case PCI_DMA_FROMDEVICE:	/* invalidate only */
-		invalidate_dcache_range(start, end);
-		break;
-	case PCI_DMA_TODEVICE:		/* writeback only */
-		flush_dcache_range(start, end);
-		break;
-	case PCI_DMA_BIDIRECTIONAL:	/* writeback and invalidate */
-		flush_dcache_range(start, end);
-		break;
-	}
-}
-EXPORT_SYMBOL(consistent_sync);
-
-/*
- * consistent_sync_page makes memory consistent. identical
- * to consistent_sync, but takes a struct page instead of a
- * virtual address
- */
-void consistent_sync_page(struct page *page, unsigned long offset,
-	size_t size, int direction)
-{
-	unsigned long start = (unsigned long)page_address(page) + offset;
-	consistent_sync((void *)start, size, direction);
-}
-EXPORT_SYMBOL(consistent_sync_page);
-- 
2.17.0

From - Thu Nov 08 21:41:31 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 08/25] nds32: consolidate DMA cache maintainance routines
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24492>

Make sure all other DMA methods call nds32_dma_sync_single_for_{device,cpu}
to perform cache maintaince, and remove the consisteny_sync helper that
implemented both with entirely separate code based off an argument.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/nds32/kernel/dma.c | 140 +++++++++++++++++-----------------------
 1 file changed, 61 insertions(+), 79 deletions(-)

diff --git a/arch/nds32/kernel/dma.c b/arch/nds32/kernel/dma.c
index e1bf7206e015..4e6fb4ffd3f7 100644
--- a/arch/nds32/kernel/dma.c
+++ b/arch/nds32/kernel/dma.c
@@ -22,11 +22,6 @@
 static pte_t *consistent_pte;
 static DEFINE_RAW_SPINLOCK(consistent_lock);
 
-enum master_type {
-	FOR_CPU = 0,
-	FOR_DEVICE = 1,
-};
-
 /*
  * VM region handling support.
  *
@@ -333,15 +328,53 @@ static int __init consistent_init(void)
 }
 
 core_initcall(consistent_init);
-static void consistent_sync(void *vaddr, size_t size, int direction, int master_type);
+
+static void
+nds32_dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
+				 size_t size, enum dma_data_direction dir)
+{
+	unsigned long start = (unsigned long)phys_to_virt(handle);
+
+	switch (dir) {
+	case DMA_FROM_DEVICE:
+		break;
+	case DMA_TO_DEVICE:
+	case DMA_BIDIRECTIONAL:
+		cpu_dma_wb_range(start, start + size);
+		break;
+	default:
+		BUG();
+	}
+}
+
+static void
+nds32_dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
+			      size_t size, enum dma_data_direction dir)
+{
+	unsigned long start = (unsigned long)phys_to_virt(handle);
+
+	switch (dir) {
+	case DMA_TO_DEVICE:
+		break;
+	case DMA_FROM_DEVICE:
+	case DMA_BIDIRECTIONAL:
+		cpu_dma_inval_range(start, start + size);
+		break;
+	default:
+		BUG();
+	}
+}
+
 static dma_addr_t nds32_dma_map_page(struct device *dev, struct page *page,
 				     unsigned long offset, size_t size,
 				     enum dma_data_direction dir,
 				     unsigned long attrs)
 {
+	dma_addr_t dma_addr = page_to_phys(page) + offset;
+
 	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		consistent_sync((void *)(page_address(page) + offset), size, dir, FOR_DEVICE);
-	return page_to_phys(page) + offset;
+		nds32_dma_sync_single_for_device(dev, handle, size, dir);
+	return dma_addr;
 }
 
 static void nds32_dma_unmap_page(struct device *dev, dma_addr_t handle,
@@ -349,75 +382,19 @@ static void nds32_dma_unmap_page(struct device *dev, dma_addr_t handle,
 				 unsigned long attrs)
 {
 	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		consistent_sync(phys_to_virt(handle), size, dir, FOR_CPU);
+		nds32_dma_sync_single_for_cpu(dev, handle, size, dir);
 }
 
-/*
- * Make an area consistent for devices.
- */
-static void consistent_sync(void *vaddr, size_t size, int direction, int master_type)
-{
-	unsigned long start = (unsigned long)vaddr;
-	unsigned long end = start + size;
-
-	if (master_type == FOR_CPU) {
-		switch (direction) {
-		case DMA_TO_DEVICE:
-			break;
-		case DMA_FROM_DEVICE:
-		case DMA_BIDIRECTIONAL:
-			cpu_dma_inval_range(start, end);
-			break;
-		default:
-			BUG();
-		}
-	} else {
-		/* FOR_DEVICE */
-		switch (direction) {
-		case DMA_FROM_DEVICE:
-			break;
-		case DMA_TO_DEVICE:
-		case DMA_BIDIRECTIONAL:
-			cpu_dma_wb_range(start, end);
-			break;
-		default:
-			BUG();
-		}
-	}
-}
-
-static int nds32_dma_map_sg(struct device *dev, struct scatterlist *sg,
-			    int nents, enum dma_data_direction dir,
-			    unsigned long attrs)
+static void
+nds32_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+			     int nents, enum dma_data_direction dir)
 {
 	int i;
 
 	for (i = 0; i < nents; i++, sg++) {
-		char *virt =
-		    page_address((struct page *)sg->page_link) + sg->offset;
-		consistent_sync(virt, sg->length, dir, FOR_CPU);
+		nds32_dma_sync_single_for_device(dev, sg_dma_address(sg),
+				sg->length, dir);
 	}
-	return nents;
-}
-
-static void nds32_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-			       int nhwentries, enum dma_data_direction dir,
-			       unsigned long attrs)
-{
-}
-
-static void
-nds32_dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
-			      size_t size, enum dma_data_direction dir)
-{
-	consistent_sync((void *)phys_to_virt(handle), size, dir, FOR_CPU);
-}
-
-static void
-nds32_dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
-				 size_t size, enum dma_data_direction dir)
-{
-	consistent_sync((void *)phys_to_virt(handle), size, dir, FOR_DEVICE);
 }
 
 static void
@@ -427,23 +404,28 @@ nds32_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
 	int i;
 
 	for (i = 0; i < nents; i++, sg++) {
-		char *virt =
-		    page_address((struct page *)sg->page_link) + sg->offset;
-		consistent_sync(virt, sg->length, dir, FOR_CPU);
+		nds32_dma_sync_single_for_cpu(dev, sg_dma_address(sg),
+				sg->length, dir);
 	}
 }
 
-static void
-nds32_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-			     int nents, enum dma_data_direction dir)
+static int nds32_dma_map_sg(struct device *dev, struct scatterlist *sg,
+			    int nents, enum dma_data_direction dir,
+			    unsigned long attrs)
 {
 	int i;
 
 	for (i = 0; i < nents; i++, sg++) {
-		char *virt =
-		    page_address((struct page *)sg->page_link) + sg->offset;
-		consistent_sync(virt, sg->length, dir, FOR_DEVICE);
+		nds32_dma_sync_single_for_device(dev, sg_dma_address(sg),
+				sg->length, dir);
 	}
+	return nents;
+}
+
+static void nds32_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+			       int nhwentries, enum dma_data_direction dir,
+			       unsigned long attrs)
+{
 }
 
 struct dma_map_ops nds32_dma_ops = {
-- 
2.17.0


From - Thu Nov 08 21:41:31 2018
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Subject: [PATCH 07/25] nds32: remove the broken kmap code in nds32_dma_map_sg
Date: Tue, 22 May 2018 14:04:12 +0200
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nds32_dma_map_sg is the only of the various DMA operations that tries
to deal with highmem (the single page variants and SG sync routines are
missing, SG unmap is entirely unimplemented), and it does so without
taking into account S/G list items that are bigger than a page, which
are legal and can happen frequently.

Remove this code for now - if highmem support on nds32 becomes a real
thing it needs to be added back as a loop over pages in the newly
consolidated code that deals with all operations.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/nds32/kernel/dma.c | 21 +++------------------
 1 file changed, 3 insertions(+), 18 deletions(-)

diff --git a/arch/nds32/kernel/dma.c b/arch/nds32/kernel/dma.c
index d291800fc621..e1bf7206e015 100644
--- a/arch/nds32/kernel/dma.c
+++ b/arch/nds32/kernel/dma.c
@@ -393,24 +393,9 @@ static int nds32_dma_map_sg(struct device *dev, struct scatterlist *sg,
 	int i;
 
 	for (i = 0; i < nents; i++, sg++) {
-		void *virt;
-		unsigned long pfn;
-		struct page *page = sg_page(sg);
-
-		sg->dma_address = sg_phys(sg);
-		pfn = page_to_pfn(page) + sg->offset / PAGE_SIZE;
-		page = pfn_to_page(pfn);
-		if (PageHighMem(page)) {
-			virt = kmap_atomic(page);
-			consistent_sync(virt, sg->length, dir, FOR_CPU);
-			kunmap_atomic(virt);
-		} else {
-			if (sg->offset > PAGE_SIZE)
-				panic("sg->offset:%08x > PAGE_SIZE\n",
-				      sg->offset);
-			virt = page_address(page) + sg->offset;
-			consistent_sync(virt, sg->length, dir, FOR_CPU);
-		}
+		char *virt =
+		    page_address((struct page *)sg->page_link) + sg->offset;
+		consistent_sync(virt, sg->length, dir, FOR_CPU);
 	}
 	return nents;
 }
-- 
2.17.0


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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/652035>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/openrisc/Kconfig                   |  2 +
 arch/openrisc/include/asm/Kbuild        |  1 +
 arch/openrisc/include/asm/dma-mapping.h | 35 -------------
 arch/openrisc/kernel/dma.c              | 65 ++++---------------------
 4 files changed, 12 insertions(+), 91 deletions(-)
 delete mode 100644 arch/openrisc/include/asm/dma-mapping.h

diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 9ecad05bfc73..65e3c574c9d3 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -6,6 +6,8 @@
 
 config OPENRISC
 	def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select DMA_NONCOHERENT_OPS
 	select OF
 	select OF_EARLY_FLATTREE
 	select IRQ_DOMAIN
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
index f05c722a21f8..e663a996b612 100644
--- a/arch/openrisc/include/asm/Kbuild
+++ b/arch/openrisc/include/asm/Kbuild
@@ -6,6 +6,7 @@ generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
deleted file mode 100644
index e212a1f0b6d2..000000000000
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * OpenRISC Linux
- *
- * Linux architectural port borrowing liberally from similar works of
- * others.  All original copyrights apply as per the original source
- * declaration.
- *
- * OpenRISC implementation:
- * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef __ASM_OPENRISC_DMA_MAPPING_H
-#define __ASM_OPENRISC_DMA_MAPPING_H
-
-/*
- * See Documentation/DMA-API-HOWTO.txt and
- * Documentation/DMA-API.txt for documentation.
- */
-
-#include <linux/dma-debug.h>
-#include <linux/dma-mapping.h>
-
-extern const struct dma_map_ops or1k_dma_map_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &or1k_dma_map_ops;
-}
-
-#endif	/* __ASM_OPENRISC_DMA_MAPPING_H */
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index d6a0bf1fa713..159336adfa2f 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -19,9 +19,7 @@
  * the only thing implemented properly.  The rest need looking into...
  */
 
-#include <linux/dma-mapping.h>
-#include <linux/dma-debug.h>
-#include <linux/export.h>
+#include <linux/dma-noncoherent.h>
 
 #include <asm/cpuinfo.h>
 #include <asm/spr_defs.h>
@@ -80,10 +78,9 @@ page_clear_nocache(pte_t *pte, unsigned long addr,
  * is being ignored for now; uncached but write-combined memory is a
  * missing feature of the OR1K.
  */
-static void *
-or1k_dma_alloc(struct device *dev, size_t size,
-	       dma_addr_t *dma_handle, gfp_t gfp,
-	       unsigned long attrs)
+void *
+arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	unsigned long va;
 	void *page;
@@ -115,9 +112,9 @@ or1k_dma_alloc(struct device *dev, size_t size,
 	return (void *)va;
 }
 
-static void
-or1k_dma_free(struct device *dev, size_t size, void *vaddr,
-	      dma_addr_t dma_handle, unsigned long attrs)
+void
+arch_dma_free(struct device *dev, size_t size, void *vaddr,
+		dma_addr_t dma_handle, unsigned long attrs)
 {
 	unsigned long va = (unsigned long)vaddr;
 	struct mm_walk walk = {
@@ -133,13 +130,10 @@ or1k_dma_free(struct device *dev, size_t size, void *vaddr,
 	free_pages_exact(vaddr, size);
 }
 
-static void
-or1k_sync_single_for_device(struct device *dev,
-			    dma_addr_t dma_handle, size_t size,
-			    enum dma_data_direction dir)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t addr, size_t size,
+		enum dma_data_direction dir)
 {
 	unsigned long cl;
-	dma_addr_t addr = dma_handle;
 	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
 
 	switch (dir) {
@@ -163,45 +157,4 @@ or1k_sync_single_for_device(struct device *dev,
 		 */
 		break;
 	}
-
-}
-
-static dma_addr_t
-or1k_map_page(struct device *dev, struct page *page,
-	      unsigned long offset, size_t size,
-	      enum dma_data_direction dir,
-	      unsigned long attrs)
-{
-	unsigned long cl;
-	dma_addr_t addr = page_to_phys(page) + offset;
-	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		or1k_sync_single_for_device(dev, addr, size, dir);
-	return addr;
 }
-
-static int
-or1k_map_sg(struct device *dev, struct scatterlist *sg,
-	    int nents, enum dma_data_direction dir,
-	    unsigned long attrs)
-{
-	struct scatterlist *s;
-	int i;
-
-	for_each_sg(sg, s, nents, i) {
-		s->dma_address = or1k_map_page(dev, sg_page(s), s->offset,
-					       s->length, dir, 0);
-	}
-
-	return nents;
-}
-
-const struct dma_map_ops or1k_dma_map_ops = {
-	.alloc = or1k_dma_alloc,
-	.free = or1k_dma_free,
-	.map_page = or1k_map_page,
-	.map_sg = or1k_map_sg,
-	.sync_single_for_device = or1k_sync_single_for_device,
-};
-EXPORT_SYMBOL(or1k_dma_map_ops);
-- 
2.17.0

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Subject: [PATCH 10/25] nds32: use generic dma_noncoherent_ops
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Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/nds32/Kconfig                   |   3 +
 arch/nds32/include/asm/Kbuild        |   1 +
 arch/nds32/include/asm/dma-mapping.h |  14 ----
 arch/nds32/kernel/dma.c              | 113 +++------------------------
 4 files changed, 15 insertions(+), 116 deletions(-)
 delete mode 100644 arch/nds32/include/asm/dma-mapping.h

diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index 249f38d3388f..67d0ac0a989c 100644
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -5,10 +5,13 @@
 
 config NDS32
         def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select ARCH_WANT_FRAME_POINTERS if FTRACE
 	select CLKSRC_MMIO
 	select CLONE_BACKWARDS
 	select COMMON_CLK
+	select DMA_NONCOHERENT_OPS
 	select GENERIC_ATOMIC64
 	select GENERIC_CPU_DEVICES
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/nds32/include/asm/Kbuild b/arch/nds32/include/asm/Kbuild
index 06bdf8167f5a..b3e951f805f8 100644
--- a/arch/nds32/include/asm/Kbuild
+++ b/arch/nds32/include/asm/Kbuild
@@ -13,6 +13,7 @@ generic-y += cputime.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += errno.h
 generic-y += exec.h
diff --git a/arch/nds32/include/asm/dma-mapping.h b/arch/nds32/include/asm/dma-mapping.h
deleted file mode 100644
index 2dd47d245c25..000000000000
--- a/arch/nds32/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,14 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef ASMNDS32_DMA_MAPPING_H
-#define ASMNDS32_DMA_MAPPING_H
-
-extern struct dma_map_ops nds32_dma_ops;
-
-static inline struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &nds32_dma_ops;
-}
-
-#endif
diff --git a/arch/nds32/kernel/dma.c b/arch/nds32/kernel/dma.c
index 43d7fd432bb6..2b3167a1f259 100644
--- a/arch/nds32/kernel/dma.c
+++ b/arch/nds32/kernel/dma.c
@@ -3,17 +3,14 @@
 
 #include <linux/types.h>
 #include <linux/mm.h>
-#include <linux/export.h>
 #include <linux/string.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-noncoherent.h>
 #include <linux/io.h>
 #include <linux/cache.h>
 #include <linux/highmem.h>
 #include <linux/slab.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
-#include <asm/dma-mapping.h>
 #include <asm/proc-fns.h>
 
 /*
@@ -119,10 +116,8 @@ static struct arch_vm_region *vm_region_find(struct arch_vm_region *head,
 	return c;
 }
 
-/* FIXME: attrs is not used. */
-static void *nds32_dma_alloc_coherent(struct device *dev, size_t size,
-				      dma_addr_t * handle, gfp_t gfp,
-				      unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	struct page *page;
 	struct arch_vm_region *c;
@@ -227,8 +222,8 @@ static void *nds32_dma_alloc_coherent(struct device *dev, size_t size,
 	return NULL;
 }
 
-static void nds32_dma_free(struct device *dev, size_t size, void *cpu_addr,
-			   dma_addr_t handle, unsigned long attrs)
+void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
+		dma_addr_t handle, unsigned long attrs)
 {
 	struct arch_vm_region *c;
 	unsigned long flags, addr;
@@ -329,11 +324,10 @@ static int __init consistent_init(void)
 
 core_initcall(consistent_init);
 
-static void
-nds32_dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
-				 size_t size, enum dma_data_direction dir)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	unsigned long start = (unsigned long)phys_to_virt(handle);
+	unsigned long start = (unsigned long)phys_to_virt(paddr);
 
 	switch (dir) {
 	case DMA_FROM_DEVICE:
@@ -347,11 +341,10 @@ nds32_dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
 	}
 }
 
-static void
-nds32_dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
-			      size_t size, enum dma_data_direction dir)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	unsigned long start = (unsigned long)phys_to_virt(handle);
+	unsigned long start = (unsigned long)phys_to_virt(paddr);
 
 	switch (dir) {
 	case DMA_TO_DEVICE:
@@ -364,87 +357,3 @@ nds32_dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
 		BUG();
 	}
 }
-
-static dma_addr_t nds32_dma_map_page(struct device *dev, struct page *page,
-				     unsigned long offset, size_t size,
-				     enum dma_data_direction dir,
-				     unsigned long attrs)
-{
-	dma_addr_t dma_addr = page_to_phys(page) + offset;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		nds32_dma_sync_single_for_device(dev, handle, size, dir);
-	return dma_addr;
-}
-
-static void nds32_dma_unmap_page(struct device *dev, dma_addr_t handle,
-				 size_t size, enum dma_data_direction dir,
-				 unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		nds32_dma_sync_single_for_cpu(dev, handle, size, dir);
-}
-
-static void
-nds32_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
-			     int nents, enum dma_data_direction dir)
-{
-	int i;
-
-	for (i = 0; i < nents; i++, sg++) {
-		nds32_dma_sync_single_for_device(dev, sg_dma_address(sg),
-				sg->length, dir);
-	}
-}
-
-static void
-nds32_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
-			  enum dma_data_direction dir)
-{
-	int i;
-
-	for (i = 0; i < nents; i++, sg++) {
-		nds32_dma_sync_single_for_cpu(dev, sg_dma_address(sg),
-				sg->length, dir);
-	}
-}
-
-static int nds32_dma_map_sg(struct device *dev, struct scatterlist *sg,
-			    int nents, enum dma_data_direction dir,
-			    unsigned long attrs)
-{
-	int i;
-
-	for (i = 0; i < nents; i++, sg++) {
-		nds32_dma_sync_single_for_device(dev, sg_dma_address(sg),
-				sg->length, dir);
-	}
-	return nents;
-}
-
-static void nds32_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-			       int nhwentries, enum dma_data_direction dir,
-			       unsigned long attrs)
-{
-	int i;
-
-	for (i = 0; i < nhwentries; i++, sg++) {
-		nds32_dma_sync_single_for_cpu(dev, sg_dma_address(sg),
-				sg->length, dir);
-	}
-}
-
-struct dma_map_ops nds32_dma_ops = {
-	.alloc = nds32_dma_alloc_coherent,
-	.free = nds32_dma_free,
-	.map_page = nds32_dma_map_page,
-	.unmap_page = nds32_dma_unmap_page,
-	.map_sg = nds32_dma_map_sg,
-	.unmap_sg = nds32_dma_unmap_sg,
-	.sync_single_for_device = nds32_dma_sync_single_for_device,
-	.sync_single_for_cpu = nds32_dma_sync_single_for_cpu,
-	.sync_sg_for_cpu = nds32_dma_sync_sg_for_cpu,
-	.sync_sg_for_device = nds32_dma_sync_sg_for_device,
-};
-
-EXPORT_SYMBOL(nds32_dma_ops);
-- 
2.17.0


From - Thu Nov 08 21:41:31 2018
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Subject: [PATCH 19/25] sh: split arch/sh/mm/consistent.c
Date: Tue, 22 May 2018 14:04:24 +0200
Lines: 209
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2773787>

Half of the file just contains platform device memory setup code which
is required for all builds, and half contains helpers for dma coherent
allocation, which is only needed if CONFIG_DMA_NONCOHERENT is enabled.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sh/kernel/Makefile       |  2 +-
 arch/sh/kernel/dma-coherent.c | 80 +++++++++++++++++++++++++++++++++++
 arch/sh/mm/consistent.c       | 75 --------------------------------
 3 files changed, 81 insertions(+), 76 deletions(-)
 create mode 100644 arch/sh/kernel/dma-coherent.c

diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index cb5f1bfb52de..d5ddb64bfffe 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -45,7 +45,7 @@ obj-$(CONFIG_DUMP_CODE)		+= disassemble.o
 obj-$(CONFIG_HIBERNATION)	+= swsusp.o
 obj-$(CONFIG_DWARF_UNWINDER)	+= dwarf.o
 obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_callchain.o
-obj-$(CONFIG_DMA_NONCOHERENT)	+= dma-nommu.o
+obj-$(CONFIG_DMA_NONCOHERENT)	+= dma-nommu.o dma-coherent.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)		+= hw_breakpoint.o
 
 ccflags-y := -Werror
diff --git a/arch/sh/kernel/dma-coherent.c b/arch/sh/kernel/dma-coherent.c
new file mode 100644
index 000000000000..4f41e5cd5207
--- /dev/null
+++ b/arch/sh/kernel/dma-coherent.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2004 - 2007  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+#include <asm/cacheflush.h>
+#include <asm/addrspace.h>
+
+void *dma_generic_alloc_coherent(struct device *dev, size_t size,
+				 dma_addr_t *dma_handle, gfp_t gfp,
+				 unsigned long attrs)
+{
+	void *ret, *ret_nocache;
+	int order = get_order(size);
+
+	gfp |= __GFP_ZERO;
+
+	ret = (void *)__get_free_pages(gfp, order);
+	if (!ret)
+		return NULL;
+
+	/*
+	 * Pages from the page allocator may have data present in
+	 * cache. So flush the cache before using uncached memory.
+	 */
+	sh_sync_dma_for_device(ret, size, DMA_BIDIRECTIONAL);
+
+	ret_nocache = (void __force *)ioremap_nocache(virt_to_phys(ret), size);
+	if (!ret_nocache) {
+		free_pages((unsigned long)ret, order);
+		return NULL;
+	}
+
+	split_page(pfn_to_page(virt_to_phys(ret) >> PAGE_SHIFT), order);
+
+	*dma_handle = virt_to_phys(ret) - PFN_PHYS(dev->dma_pfn_offset);
+
+	return ret_nocache;
+}
+
+void dma_generic_free_coherent(struct device *dev, size_t size,
+			       void *vaddr, dma_addr_t dma_handle,
+			       unsigned long attrs)
+{
+	int order = get_order(size);
+	unsigned long pfn = (dma_handle >> PAGE_SHIFT) + dev->dma_pfn_offset;
+	int k;
+
+	for (k = 0; k < (1 << order); k++)
+		__free_pages(pfn_to_page(pfn + k), 0);
+
+	iounmap(vaddr);
+}
+
+void sh_sync_dma_for_device(void *vaddr, size_t size,
+		    enum dma_data_direction direction)
+{
+	void *addr = sh_cacheop_vaddr(vaddr);
+
+	switch (direction) {
+	case DMA_FROM_DEVICE:		/* invalidate only */
+		__flush_invalidate_region(addr, size);
+		break;
+	case DMA_TO_DEVICE:		/* writeback only */
+		__flush_wback_region(addr, size);
+		break;
+	case DMA_BIDIRECTIONAL:		/* writeback and invalidate */
+		__flush_purge_region(addr, size);
+		break;
+	default:
+		BUG();
+	}
+}
+EXPORT_SYMBOL(sh_sync_dma_for_device);
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 5f86ae24025b..5da5be74fb6b 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -1,10 +1,6 @@
 /*
- * arch/sh/mm/consistent.c
- *
  * Copyright (C) 2004 - 2007  Paul Mundt
  *
- * Declared coherent memory functions based on arch/x86/kernel/pci-dma_32.c
- *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
@@ -13,78 +9,7 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
-#include <linux/dma-debug.h>
 #include <linux/io.h>
-#include <linux/module.h>
-#include <linux/gfp.h>
-#include <asm/cacheflush.h>
-#include <asm/addrspace.h>
-
-void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-				 dma_addr_t *dma_handle, gfp_t gfp,
-				 unsigned long attrs)
-{
-	void *ret, *ret_nocache;
-	int order = get_order(size);
-
-	gfp |= __GFP_ZERO;
-
-	ret = (void *)__get_free_pages(gfp, order);
-	if (!ret)
-		return NULL;
-
-	/*
-	 * Pages from the page allocator may have data present in
-	 * cache. So flush the cache before using uncached memory.
-	 */
-	sh_sync_dma_for_device(ret, size, DMA_BIDIRECTIONAL);
-
-	ret_nocache = (void __force *)ioremap_nocache(virt_to_phys(ret), size);
-	if (!ret_nocache) {
-		free_pages((unsigned long)ret, order);
-		return NULL;
-	}
-
-	split_page(pfn_to_page(virt_to_phys(ret) >> PAGE_SHIFT), order);
-
-	*dma_handle = virt_to_phys(ret) - PFN_PHYS(dev->dma_pfn_offset);
-
-	return ret_nocache;
-}
-
-void dma_generic_free_coherent(struct device *dev, size_t size,
-			       void *vaddr, dma_addr_t dma_handle,
-			       unsigned long attrs)
-{
-	int order = get_order(size);
-	unsigned long pfn = (dma_handle >> PAGE_SHIFT) + dev->dma_pfn_offset;
-	int k;
-
-	for (k = 0; k < (1 << order); k++)
-		__free_pages(pfn_to_page(pfn + k), 0);
-
-	iounmap(vaddr);
-}
-
-void sh_sync_dma_for_device(void *vaddr, size_t size,
-		    enum dma_data_direction direction)
-{
-	void *addr = sh_cacheop_vaddr(vaddr);
-
-	switch (direction) {
-	case DMA_FROM_DEVICE:		/* invalidate only */
-		__flush_invalidate_region(addr, size);
-		break;
-	case DMA_TO_DEVICE:		/* writeback only */
-		__flush_wback_region(addr, size);
-		break;
-	case DMA_BIDIRECTIONAL:		/* writeback and invalidate */
-		__flush_purge_region(addr, size);
-		break;
-	default:
-		BUG();
-	}
-}
 
 static int __init memchunk_setup(char *str)
 {
-- 
2.17.0



From - Thu Nov 08 21:41:32 2018
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Subject: [PATCH 17/25] sh: introduce a sh_cacheop_vaddr helper
Date: Tue, 22 May 2018 14:04:22 +0200
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And use it in the maple bus code to avoid a dma API dependency.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sh/include/asm/cacheflush.h | 7 +++++++
 arch/sh/mm/consistent.c          | 6 +-----
 drivers/sh/maple/maple.c         | 7 ++++---
 3 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index d103ab5a4e4b..b932e42ef028 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -101,5 +101,12 @@ void kunmap_coherent(void *kvaddr);
 
 void cpu_cache_init(void);
 
+static inline void *sh_cacheop_vaddr(void *vaddr)
+{
+	if (__in_29bit_mode())
+		vaddr = (void *)CAC_ADDR((unsigned long)vaddr);
+	return vaddr;
+}
+
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_CACHEFLUSH_H */
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 221832eec33b..5f86ae24025b 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -69,10 +69,7 @@ void dma_generic_free_coherent(struct device *dev, size_t size,
 void sh_sync_dma_for_device(void *vaddr, size_t size,
 		    enum dma_data_direction direction)
 {
-	void *addr;
-
-	addr = __in_29bit_mode() ?
-	       (void *)CAC_ADDR((unsigned long)vaddr) : vaddr;
+	void *addr = sh_cacheop_vaddr(vaddr);
 
 	switch (direction) {
 	case DMA_FROM_DEVICE:		/* invalidate only */
@@ -88,7 +85,6 @@ void sh_sync_dma_for_device(void *vaddr, size_t size,
 		BUG();
 	}
 }
-EXPORT_SYMBOL(sh_sync_dma_for_device);
 
 static int __init memchunk_setup(char *str)
 {
diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c
index 7525039d812c..c9c354bd713a 100644
--- a/drivers/sh/maple/maple.c
+++ b/drivers/sh/maple/maple.c
@@ -300,8 +300,8 @@ static void maple_send(void)
 	mutex_unlock(&maple_wlist_lock);
 	if (maple_packets > 0) {
 		for (i = 0; i < (1 << MAPLE_DMA_PAGES); i++)
-			sh_sync_dma_for_device(maple_sendbuf + i * PAGE_SIZE,
-				       PAGE_SIZE, DMA_BIDIRECTIONAL);
+			__flush_purge_region(maple_sendbuf + i * PAGE_SIZE,
+					PAGE_SIZE);
 	}
 
 finish:
@@ -642,7 +642,8 @@ static void maple_dma_handler(struct work_struct *work)
 		list_for_each_entry_safe(mq, nmq, &maple_sentq, list) {
 			mdev = mq->dev;
 			recvbuf = mq->recvbuf->buf;
-			sh_sync_dma_for_device(recvbuf, 0x400, DMA_FROM_DEVICE);
+			__flush_invalidate_region(sh_cacheop_vaddr(recvbuf),
+					0x400);
 			code = recvbuf[0];
 			kfree(mq->sendbuf);
 			list_del_init(&mq->list);
-- 
2.17.0



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X-Mozilla-Keys:                                                                                 
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Subject: [PATCH 16/25] sh: simplify get_arch_dma_ops
Date: Tue, 22 May 2018 14:04:21 +0200
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/652042>

Remove the indirection through the dma_ops variable, and just return
nommu_dma_ops directly from get_arch_dma_ops.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/sh/include/asm/dma-mapping.h |  5 ++---
 arch/sh/kernel/dma-nommu.c        |  8 +-------
 arch/sh/mm/consistent.c           |  3 ---
 arch/sh/mm/init.c                 | 10 ----------
 4 files changed, 3 insertions(+), 23 deletions(-)

diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 41167931e5d9..149e71f95be7 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -2,12 +2,11 @@
 #ifndef __ASM_SH_DMA_MAPPING_H
 #define __ASM_SH_DMA_MAPPING_H
 
-extern const struct dma_map_ops *dma_ops;
-extern void no_iommu_init(void);
+extern const struct dma_map_ops nommu_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
-	return dma_ops;
+	return &nommu_dma_ops;
 }
 
 extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 3e3a32fc676e..79a9edafa5b0 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -79,10 +79,4 @@ const struct dma_map_ops nommu_dma_ops = {
 	.sync_sg_for_device	= nommu_sync_sg_for_device,
 #endif
 };
-
-void __init no_iommu_init(void)
-{
-	if (dma_ops)
-		return;
-	dma_ops = &nommu_dma_ops;
-}
+EXPORT_SYMBOL(nommu_dma_ops);
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 35ea3099a3b6..221832eec33b 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -20,9 +20,6 @@
 #include <asm/cacheflush.h>
 #include <asm/addrspace.h>
 
-const struct dma_map_ops *dma_ops;
-EXPORT_SYMBOL(dma_ops);
-
 void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 				 dma_addr_t *dma_handle, gfp_t gfp,
 				 unsigned long attrs)
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index ce0bbaa7e404..32e09f03e6bf 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -395,22 +395,12 @@ void __init paging_init(void)
 	free_area_init_nodes(max_zone_pfns);
 }
 
-/*
- * Early initialization for any I/O MMUs we might have.
- */
-static void __init iommu_init(void)
-{
-	no_iommu_init();
-}
-
 unsigned int mem_init_done = 0;
 
 void __init mem_init(void)
 {
 	pg_data_t *pgdat;
 
-	iommu_init();
-
 	high_memory = NULL;
 	for_each_online_pgdat(pgdat)
 		high_memory = max_t(void *, high_memory,
-- 
2.17.0

From - Thu Nov 08 21:41:32 2018
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Subject: [PATCH 11/25] nios2: use generic dma_noncoherent_ops
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Xref: news.gmane.org gmane.linux.kernel.iommu:24499 gmane.linux.kernel.cross-arch:44308 gmane.linux.ports.parisc:28661 gmane.linux.ports.sh.devel:57079 gmane.linux.ports.hexagon:1767 gmane.linux.kernel:2773790 gmane.linux.ports.alpha:5088 gmane.linux.ports.sparc:27916 gmane.linux.kernel.arc:3944 gmane.linux.ports.arm.kernel:652043
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24499>

Switch to the generic noncoherent direct mapping implementation.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/nios2/Kconfig                   |   3 +
 arch/nios2/include/asm/Kbuild        |   1 +
 arch/nios2/include/asm/dma-mapping.h |  20 ----
 arch/nios2/mm/dma-mapping.c          | 139 +++------------------------
 4 files changed, 17 insertions(+), 146 deletions(-)
 delete mode 100644 arch/nios2/include/asm/dma-mapping.h

diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 3d4ec88f1db1..92035042cf62 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -1,6 +1,9 @@
 # SPDX-License-Identifier: GPL-2.0
 config NIOS2
 	def_bool y
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select DMA_NONCOHERENT_OPS
 	select TIMER_OF
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/nios2/include/asm/Kbuild b/arch/nios2/include/asm/Kbuild
index d232da2cbb38..24f6ee1ee69b 100644
--- a/arch/nios2/include/asm/Kbuild
+++ b/arch/nios2/include/asm/Kbuild
@@ -8,6 +8,7 @@ generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
+generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
deleted file mode 100644
index 6ceb92251da0..000000000000
--- a/arch/nios2/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * Copyright (C) 2011 Tobias Klauser <tklauser-93Khv+1bN0NyDzI6CaY1VQ@public.gmane.org>
- * Copyright (C) 2009 Wind River Systems Inc
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License.  See the file COPYING in the main directory of this
- * archive for more details.
- */
-
-#ifndef _ASM_NIOS2_DMA_MAPPING_H
-#define _ASM_NIOS2_DMA_MAPPING_H
-
-extern const struct dma_map_ops nios2_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
-	return &nios2_dma_ops;
-}
-
-#endif /* _ASM_NIOS2_DMA_MAPPING_H */
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index 4be815519dd4..4af9e5b5ba1c 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -12,18 +12,18 @@
 
 #include <linux/types.h>
 #include <linux/mm.h>
-#include <linux/export.h>
 #include <linux/string.h>
-#include <linux/scatterlist.h>
 #include <linux/dma-mapping.h>
 #include <linux/io.h>
 #include <linux/cache.h>
 #include <asm/cacheflush.h>
 
-static inline void __dma_sync_for_device(void *vaddr, size_t size,
-			      enum dma_data_direction direction)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	switch (direction) {
+	void *vaddr = phys_to_virt(paddr);
+
+	switch (dir) {
 	case DMA_FROM_DEVICE:
 		invalidate_dcache_range((unsigned long)vaddr,
 			(unsigned long)(vaddr + size));
@@ -42,10 +42,12 @@ static inline void __dma_sync_for_device(void *vaddr, size_t size,
 	}
 }
 
-static inline void __dma_sync_for_cpu(void *vaddr, size_t size,
-			      enum dma_data_direction direction)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	switch (direction) {
+	void *vaddr = phys_to_virt(paddr);
+
+	switch (dir) {
 	case DMA_BIDIRECTIONAL:
 	case DMA_FROM_DEVICE:
 		invalidate_dcache_range((unsigned long)vaddr,
@@ -58,8 +60,8 @@ static inline void __dma_sync_for_cpu(void *vaddr, size_t size,
 	}
 }
 
-static void *nios2_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		gfp_t gfp, unsigned long attrs)
 {
 	void *ret;
 
@@ -80,125 +82,10 @@ static void *nios2_dma_alloc(struct device *dev, size_t size,
 	return ret;
 }
 
-static void nios2_dma_free(struct device *dev, size_t size, void *vaddr,
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
 	unsigned long addr = (unsigned long) CAC_ADDR((unsigned long) vaddr);
 
 	free_pages(addr, get_order(size));
 }
-
-static int nios2_dma_map_sg(struct device *dev, struct scatterlist *sg,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	int i;
-
-	for_each_sg(sg, sg, nents, i) {
-		void *addr = sg_virt(sg);
-
-		if (!addr)
-			continue;
-
-		sg->dma_address = sg_phys(sg);
-
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		__dma_sync_for_device(addr, sg->length, direction);
-	}
-
-	return nents;
-}
-
-static dma_addr_t nios2_dma_map_page(struct device *dev, struct page *page,
-			unsigned long offset, size_t size,
-			enum dma_data_direction direction,
-			unsigned long attrs)
-{
-	void *addr = page_address(page) + offset;
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		__dma_sync_for_device(addr, size, direction);
-
-	return page_to_phys(page) + offset;
-}
-
-static void nios2_dma_unmap_page(struct device *dev, dma_addr_t dma_address,
-		size_t size, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		__dma_sync_for_cpu(phys_to_virt(dma_address), size, direction);
-}
-
-static void nios2_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-		int nhwentries, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	void *addr;
-	int i;
-
-	if (direction == DMA_TO_DEVICE)
-		return;
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return;
-
-	for_each_sg(sg, sg, nhwentries, i) {
-		addr = sg_virt(sg);
-		if (addr)
-			__dma_sync_for_cpu(addr, sg->length, direction);
-	}
-}
-
-static void nios2_dma_sync_single_for_cpu(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	__dma_sync_for_cpu(phys_to_virt(dma_handle), size, direction);
-}
-
-static void nios2_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	__dma_sync_for_device(phys_to_virt(dma_handle), size, direction);
-}
-
-static void nios2_dma_sync_sg_for_cpu(struct device *dev,
-		struct scatterlist *sg, int nelems,
-		enum dma_data_direction direction)
-{
-	int i;
-
-	/* Make sure that gcc doesn't leave the empty loop body.  */
-	for_each_sg(sg, sg, nelems, i)
-		__dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
-}
-
-static void nios2_dma_sync_sg_for_device(struct device *dev,
-		struct scatterlist *sg, int nelems,
-		enum dma_data_direction direction)
-{
-	int i;
-
-	/* Make sure that gcc doesn't leave the empty loop body.  */
-	for_each_sg(sg, sg, nelems, i)
-		__dma_sync_for_device(sg_virt(sg), sg->length, direction);
-
-}
-
-const struct dma_map_ops nios2_dma_ops = {
-	.alloc			= nios2_dma_alloc,
-	.free			= nios2_dma_free,
-	.map_page		= nios2_dma_map_page,
-	.unmap_page		= nios2_dma_unmap_page,
-	.map_sg			= nios2_dma_map_sg,
-	.unmap_sg		= nios2_dma_unmap_sg,
-	.sync_single_for_device	= nios2_dma_sync_single_for_device,
-	.sync_single_for_cpu	= nios2_dma_sync_single_for_cpu,
-	.sync_sg_for_cpu	= nios2_dma_sync_sg_for_cpu,
-	.sync_sg_for_device	= nios2_dma_sync_sg_for_device,
-};
-EXPORT_SYMBOL(nios2_dma_ops);
-- 
2.17.0


From - Thu Nov 08 21:41:32 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.hexagon,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel
Subject: [PATCH 12/25] openrisc: remove the sync_single_for_cpu DMA operation
Date: Tue, 22 May 2018 14:04:17 +0200
Lines: 47
Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.kernel.iommu:24500 gmane.linux.kernel.cross-arch:44309 gmane.linux.ports.parisc:28662 gmane.linux.ports.sh.devel:57080 gmane.linux.ports.hexagon:1768 gmane.linux.kernel:2773791 gmane.linux.ports.alpha:5089 gmane.linux.ports.sparc:27917 gmane.linux.kernel.arc:3945 gmane.linux.ports.arm.kernel:652044
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24500>

openrisc does all the required cache maintainance at dma map time, and none
at unmap time.  It thus has to implement sync_single_for_device to match
the map cace for buffer reuse, but there is no point in doing another
invalidation in the sync_single_cpu_case, which in terms of cache
maintainance is equivalent to the unmap case.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/openrisc/kernel/dma.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index ec7fd45704d2..47601274abf7 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -208,20 +208,6 @@ or1k_unmap_sg(struct device *dev, struct scatterlist *sg,
 	}
 }
 
-static void
-or1k_sync_single_for_cpu(struct device *dev,
-			 dma_addr_t dma_handle, size_t size,
-			 enum dma_data_direction dir)
-{
-	unsigned long cl;
-	dma_addr_t addr = dma_handle;
-	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
-
-	/* Invalidate the dcache for the requested range */
-	for (cl = addr; cl < addr + size; cl += cpuinfo->dcache_block_size)
-		mtspr(SPR_DCBIR, cl);
-}
-
 static void
 or1k_sync_single_for_device(struct device *dev,
 			    dma_addr_t dma_handle, size_t size,
@@ -243,7 +229,6 @@ const struct dma_map_ops or1k_dma_map_ops = {
 	.unmap_page = or1k_unmap_page,
 	.map_sg = or1k_map_sg,
 	.unmap_sg = or1k_unmap_sg,
-	.sync_single_for_cpu = or1k_sync_single_for_cpu,
 	.sync_single_for_device = or1k_sync_single_for_device,
 };
 EXPORT_SYMBOL(or1k_dma_map_ops);
-- 
2.17.0


From - Thu Nov 08 21:41:32 2018
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.kernel.cross-arch,gmane.linux.ports.alpha,gmane.linux.ports.parisc,gmane.linux.kernel.stable,gmane.linux.ports.ppc64.devel
Subject: [PATCH 4.4 25/92] futex: Remove duplicated code and fix undefined
 behaviour
Date: Thu, 24 May 2018 11:38:02 +0200
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, peterz@infradead.org,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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 Ralf Baechle <ralf@linux-mips.org>, sparclinux@vger.kernel.org,
 Jiri Slaby <jslaby@suse.cz>, Stafford Horne <shorne@gmail.com>,
 Jonas Bonn <jonas@southpole.se>, linux-s390@vger.kernel.org,
 Ben Hutchings <ben.hutchings@codethink.co.uk>,
 Yoshinori Sato <ysato@users.sourceforge.jp>, linux-hexagon@vger.kernel.org,
 Helge Deller <deller@gmx.de>, "James E.J. Bottomley" <jejb@parisc-linux.org>,
 Fenghua Yu <fenghua.yu@intel.com>, Catalin Marinas <catalin.marinas@arm.com>,
 "Darren Hart \(VMware\)" <dvhart@infradead.org>,
 Matt Turner <mattst88@gmail.com>, linux-snps-arc@lists.infradead.org,
 linux-arch@vger.kernel.org, Arnd Bergmann
To: linux-kernel@vger.kernel.org
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4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jiri Slaby <jslaby@suse.cz>

commit 30d6e0a4190d37740e9447e4e4815f06992dd8c3 upstream.

There is code duplicated over all architecture's headers for
futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
and comparison of the result.

Remove this duplication and leave up to the arches only the needed
assembly which is now in arch_futex_atomic_op_inuser.

This effectively distributes the Will Deacon's arm64 fix for undefined
behaviour reported by UBSAN to all architectures. The fix was done in
commit 5f16a046f8e1 (arm64: futex: Fix undefined behaviour with
FUTEX_OP_OPARG_SHIFT usage). Look there for an example dump.

And as suggested by Thomas, check for negative oparg too, because it was
also reported to cause undefined behaviour report.

Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
remove pointless access_ok() checks") as access_ok there returns true.
We introduce it back to the helper for the sake of simplicity (it gets
optimized away anyway).

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390]
Acked-by: Chris Metcalf <cmetcalf@mellanox.com> [for tile]
Reviewed-by: Darren Hart (VMware) <dvhart@infradead.org>
Reviewed-by: Will Deacon <will.deacon@arm.com> [core/arm64]
Cc: linux-mips@linux-mips.org
Cc: Rich Felker <dalias@libc.org>
Cc: linux-ia64@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: peterz@infradead.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: sparclinux@vger.kernel.org
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux-s390@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: linux-hexagon@vger.kernel.org
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: linux-snps-arc@lists.infradead.org
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-xtensa@linux-xtensa.org
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: openrisc@lists.librecores.org
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Stafford Horne <shorne@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Richard Henderson <rth@twiddle.net>
Cc: Chris Zankel <chris@zankel.net>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-parisc@vger.kernel.org
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: linux-alpha@vger.kernel.org
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: "David S. Miller" <davem@davemloft.net>
Link: http://lkml.kernel.org/r/20170824073105.3901-1-jslaby@suse.cz
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/alpha/include/asm/futex.h      |   26 +++---------------
 arch/arc/include/asm/futex.h        |   40 +++-------------------------
 arch/arm/include/asm/futex.h        |   26 ++----------------
 arch/arm64/include/asm/futex.h      |   26 ++----------------
 arch/frv/include/asm/futex.h        |    3 +-
 arch/frv/kernel/futex.c             |   27 ++-----------------
 arch/hexagon/include/asm/futex.h    |   38 ++-------------------------
 arch/ia64/include/asm/futex.h       |   25 ++----------------
 arch/microblaze/include/asm/futex.h |   38 ++-------------------------
 arch/mips/include/asm/futex.h       |   25 ++----------------
 arch/parisc/include/asm/futex.h     |   25 ++----------------
 arch/powerpc/include/asm/futex.h    |   26 +++---------------
 arch/s390/include/asm/futex.h       |   23 +++-------------
 arch/sh/include/asm/futex.h         |   26 ++----------------
 arch/sparc/include/asm/futex_64.h   |   26 +++---------------
 arch/tile/include/asm/futex.h       |   40 +++-------------------------
 arch/x86/include/asm/futex.h        |   40 +++-------------------------
 arch/xtensa/include/asm/futex.h     |   27 +++----------------
 include/asm-generic/futex.h         |   50 ++++++------------------------------
 kernel/futex.c                      |   39 ++++++++++++++++++++++++++++
 20 files changed, 126 insertions(+), 470 deletions(-)

--- a/arch/alpha/include/asm/futex.h
+++ b/arch/alpha/include/asm/futex.h
@@ -29,18 +29,10 @@
 	:	"r" (uaddr), "r"(oparg)				\
 	:	"memory")
 
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -66,17 +58,9 @@ static inline int futex_atomic_op_inuser
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/arc/include/asm/futex.h
+++ b/arch/arc/include/asm/futex.h
@@ -73,20 +73,11 @@
 
 #endif
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
-
 #ifndef CONFIG_ARC_HAS_LLSC
 	preempt_disable();	/* to guarantee atomic r-m-w of futex op */
 #endif
@@ -118,30 +109,9 @@ static inline int futex_atomic_op_inuser
 	preempt_enable();
 #endif
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/arm/include/asm/futex.h
+++ b/arch/arm/include/asm/futex.h
@@ -128,20 +128,10 @@ futex_atomic_cmpxchg_inatomic(u32 *uval,
 #endif /* !SMP */
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 #ifndef CONFIG_SMP
 	preempt_disable();
 #endif
@@ -172,17 +162,9 @@ futex_atomic_op_inuser (int encoded_op,
 	preempt_enable();
 #endif
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/arm64/include/asm/futex.h
+++ b/arch/arm64/include/asm/futex.h
@@ -53,20 +53,10 @@
 	: "memory")
 
 static inline int
-futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (int)(encoded_op << 8) >> 20;
-	int cmparg = (int)(encoded_op << 20) >> 20;
 	int oldval = 0, ret, tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1U << (oparg & 0x1f);
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -96,17 +86,9 @@ futex_atomic_op_inuser(unsigned int enco
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/frv/include/asm/futex.h
+++ b/arch/frv/include/asm/futex.h
@@ -7,7 +7,8 @@
 #include <asm/errno.h>
 #include <asm/uaccess.h>
 
-extern int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr);
+extern int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr);
 
 static inline int
 futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
--- a/arch/frv/kernel/futex.c
+++ b/arch/frv/kernel/futex.c
@@ -186,20 +186,10 @@ static inline int atomic_futex_op_xchg_x
 /*
  * do the futex operations
  */
-int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -225,18 +215,9 @@ int futex_atomic_op_inuser(int encoded_o
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS; break;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
 
 	return ret;
 
-} /* end futex_atomic_op_inuser() */
+} /* end arch_futex_atomic_op_inuser() */
--- a/arch/hexagon/include/asm/futex.h
+++ b/arch/hexagon/include/asm/futex.h
@@ -31,18 +31,9 @@
 
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -72,30 +63,9 @@ futex_atomic_op_inuser(int encoded_op, i
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/ia64/include/asm/futex.h
+++ b/arch/ia64/include/asm/futex.h
@@ -45,18 +45,9 @@ do {									\
 } while (0)
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -84,17 +75,9 @@ futex_atomic_op_inuser (int encoded_op,
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/microblaze/include/asm/futex.h
+++ b/arch/microblaze/include/asm/futex.h
@@ -29,18 +29,9 @@
 })
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -66,30 +57,9 @@ futex_atomic_op_inuser(int encoded_op, u
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/mips/include/asm/futex.h
+++ b/arch/mips/include/asm/futex.h
@@ -83,18 +83,9 @@
 }
 
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -125,17 +116,9 @@ futex_atomic_op_inuser(int encoded_op, u
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -32,20 +32,11 @@ _futex_spin_unlock_irqrestore(u32 __user
 }
 
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
 	unsigned long int flags;
 	u32 val;
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(*uaddr)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -98,17 +89,9 @@ futex_atomic_op_inuser (int encoded_op,
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/powerpc/include/asm/futex.h
+++ b/arch/powerpc/include/asm/futex.h
@@ -31,18 +31,10 @@
 	: "b" (uaddr), "i" (-EFAULT), "r" (oparg) \
 	: "cr0", "memory")
 
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -68,17 +60,9 @@ static inline int futex_atomic_op_inuser
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/s390/include/asm/futex.h
+++ b/arch/s390/include/asm/futex.h
@@ -21,17 +21,12 @@
 		: "0" (-EFAULT), "d" (oparg), "a" (uaddr),		\
 		  "m" (*uaddr) : "cc");
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, newval, ret;
 
 	load_kernel_asce();
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
 
 	pagefault_disable();
 	switch (op) {
@@ -60,17 +55,9 @@ static inline int futex_atomic_op_inuser
 	}
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/sh/include/asm/futex.h
+++ b/arch/sh/include/asm/futex.h
@@ -10,20 +10,11 @@
 /* XXX: UP variants, fix for SH-4A and SMP.. */
 #include <asm/futex-irq.h>
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -49,17 +40,8 @@ static inline int futex_atomic_op_inuser
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
 
 	return ret;
 }
--- a/arch/sparc/include/asm/futex_64.h
+++ b/arch/sparc/include/asm/futex_64.h
@@ -29,22 +29,14 @@
 	: "r" (uaddr), "r" (oparg), "i" (-EFAULT)	\
 	: "memory")
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tem;
 
-	if (unlikely(!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))))
-		return -EFAULT;
 	if (unlikely((((unsigned long) uaddr) & 0x3UL)))
 		return -EINVAL;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -69,17 +61,9 @@ static inline int futex_atomic_op_inuser
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/tile/include/asm/futex.h
+++ b/arch/tile/include/asm/futex.h
@@ -106,12 +106,9 @@
 	lock = __atomic_hashed_lock((int __force *)uaddr)
 #endif
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int uninitialized_var(val), ret;
 
 	__futex_prolog();
@@ -119,12 +116,6 @@ static inline int futex_atomic_op_inuser
 	/* The 32-bit futex code makes this assumption, so validate it here. */
 	BUILD_BUG_ON(sizeof(atomic_t) != sizeof(int));
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 	switch (op) {
 	case FUTEX_OP_SET:
@@ -148,30 +139,9 @@ static inline int futex_atomic_op_inuser
 	}
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (val == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (val != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (val < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (val >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (val <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (val > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = val;
+
 	return ret;
 }
 
--- a/arch/x86/include/asm/futex.h
+++ b/arch/x86/include/asm/futex.h
@@ -41,20 +41,11 @@
 		       "+m" (*uaddr), "=&r" (tem)		\
 		     : "r" (oparg), "i" (-EFAULT), "1" (0))
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret, tem;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
-
 	pagefault_disable();
 
 	switch (op) {
@@ -80,30 +71,9 @@ static inline int futex_atomic_op_inuser
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ:
-			ret = (oldval == cmparg);
-			break;
-		case FUTEX_OP_CMP_NE:
-			ret = (oldval != cmparg);
-			break;
-		case FUTEX_OP_CMP_LT:
-			ret = (oldval < cmparg);
-			break;
-		case FUTEX_OP_CMP_GE:
-			ret = (oldval >= cmparg);
-			break;
-		case FUTEX_OP_CMP_LE:
-			ret = (oldval <= cmparg);
-			break;
-		case FUTEX_OP_CMP_GT:
-			ret = (oldval > cmparg);
-			break;
-		default:
-			ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/arch/xtensa/include/asm/futex.h
+++ b/arch/xtensa/include/asm/futex.h
@@ -44,18 +44,10 @@
 	: "r" (uaddr), "I" (-EFAULT), "r" (oparg)	\
 	: "memory")
 
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 #if !XCHAL_HAVE_S32C1I
 	return -ENOSYS;
@@ -89,19 +81,10 @@ static inline int futex_atomic_op_inuser
 
 	pagefault_enable();
 
-	if (ret)
-		return ret;
-
-	switch (cmp) {
-	case FUTEX_OP_CMP_EQ: return (oldval == cmparg);
-	case FUTEX_OP_CMP_NE: return (oldval != cmparg);
-	case FUTEX_OP_CMP_LT: return (oldval < cmparg);
-	case FUTEX_OP_CMP_GE: return (oldval >= cmparg);
-	case FUTEX_OP_CMP_LE: return (oldval <= cmparg);
-	case FUTEX_OP_CMP_GT: return (oldval > cmparg);
-	}
+	if (!ret)
+		*oval = oldval;
 
-	return -ENOSYS;
+	return ret;
 }
 
 static inline int
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -13,7 +13,7 @@
  */
 
 /**
- * futex_atomic_op_inuser() - Atomic arithmetic operation with constant
+ * arch_futex_atomic_op_inuser() - Atomic arithmetic operation with constant
  *			  argument and comparison of the previous
  *			  futex value with another constant.
  *
@@ -25,18 +25,11 @@
  * <0 - On error
  */
 static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval, ret;
 	u32 tmp;
 
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
 	preempt_disable();
 	pagefault_disable();
 
@@ -74,17 +67,9 @@ out_pagefault_enable:
 	pagefault_enable();
 	preempt_enable();
 
-	if (ret == 0) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (ret == 0)
+		*oval = oldval;
+
 	return ret;
 }
 
@@ -126,18 +111,9 @@ futex_atomic_cmpxchg_inatomic(u32 *uval,
 
 #else
 static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-	int op = (encoded_op >> 28) & 7;
-	int cmp = (encoded_op >> 24) & 15;
-	int oparg = (encoded_op << 8) >> 20;
-	int cmparg = (encoded_op << 20) >> 20;
 	int oldval = 0, ret;
-	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
-		oparg = 1 << oparg;
-
-	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
-		return -EFAULT;
 
 	pagefault_disable();
 
@@ -153,17 +129,9 @@ futex_atomic_op_inuser (int encoded_op,
 
 	pagefault_enable();
 
-	if (!ret) {
-		switch (cmp) {
-		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
-		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
-		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
-		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
-		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
-		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
-		default: ret = -ENOSYS;
-		}
-	}
+	if (!ret)
+		*oval = oldval;
+
 	return ret;
 }
 
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1453,6 +1453,45 @@ out:
 	return ret;
 }
 
+static int futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
+{
+	unsigned int op =	  (encoded_op & 0x70000000) >> 28;
+	unsigned int cmp =	  (encoded_op & 0x0f000000) >> 24;
+	int oparg = sign_extend32((encoded_op & 0x00fff000) >> 12, 12);
+	int cmparg = sign_extend32(encoded_op & 0x00000fff, 12);
+	int oldval, ret;
+
+	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) {
+		if (oparg < 0 || oparg > 31)
+			return -EINVAL;
+		oparg = 1 << oparg;
+	}
+
+	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+		return -EFAULT;
+
+	ret = arch_futex_atomic_op_inuser(op, oparg, &oldval, uaddr);
+	if (ret)
+		return ret;
+
+	switch (cmp) {
+	case FUTEX_OP_CMP_EQ:
+		return oldval == cmparg;
+	case FUTEX_OP_CMP_NE:
+		return oldval != cmparg;
+	case FUTEX_OP_CMP_LT:
+		return oldval < cmparg;
+	case FUTEX_OP_CMP_GE:
+		return oldval >= cmparg;
+	case FUTEX_OP_CMP_LE:
+		return oldval <= cmparg;
+	case FUTEX_OP_CMP_GT:
+		return oldval > cmparg;
+	default:
+		return -ENOSYS;
+	}
+}
+
 /*
  * Wake up all waiters hashed on the physical page that is mapped
  * to this virtual address:

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From: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kbuild.devel,gmane.linux.ports.parisc
Subject: [PATCH] kbuild: add endianness flag to CHEKCFLAGS
Date: Mon, 28 May 2018 19:00:48 +0200
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Cc: Michal Marek <michal.lkml@markovi.net>,
        linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
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        linux-s390@vger.kernel.org,
        Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
To: Masahiro Yamada <yamada.masahiro@socionext.com>,
        Jonas Bonn <jonas@southpole.se>,
        Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
        Stafford Horne <shorne@gmail.com>,
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The kernel depends on macros like __BYTE_ORDER__,
__BIG_ENDIAN__ or __LITTLE_ENDIAN__.

OTOH, sparse doesn't know about the endianness of the kernel and
by default uses the same as the machine on which sparse was built.

Ensure that sparse can predefine the macros corresponding to
how the kernel was configured by adding -m{big,little}-endian
to CHECKFLAGS in the main Makefile (and so for all archs).
Also, remove the equivalent done in arch specific Makefiles.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
---
 Makefile               | 3 +++
 arch/openrisc/Makefile | 1 -
 arch/parisc/Makefile   | 2 +-
 arch/s390/Makefile     | 2 +-
 4 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 56ba070df..057a278d2 100644
--- a/Makefile
+++ b/Makefile
@@ -878,6 +878,9 @@ ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
 LDFLAGS_vmlinux	+= $(call ld-option, -X,)
 endif
 
+# insure the checker run with the right endianness
+CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig,-mlittle)
+
 # Default kernel image to build when no specific target is given.
 # KBUILD_IMAGE may be overruled on the command line or
 # set in the environment
diff --git a/arch/openrisc/Makefile b/arch/openrisc/Makefile
index cf8802962..89076a66e 100644
--- a/arch/openrisc/Makefile
+++ b/arch/openrisc/Makefile
@@ -25,7 +25,6 @@ LDFLAGS_vmlinux :=
 LIBGCC 		:= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 
 KBUILD_CFLAGS	+= -pipe -ffixed-r10 -D__linux__
-CHECKFLAGS	+= -mbig-endian
 
 ifeq ($(CONFIG_OPENRISC_HAVE_INST_MUL),y)
 	KBUILD_CFLAGS += $(call cc-option,-mhard-mul)
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 34ac503e2..348ae4779 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -22,7 +22,7 @@ KBUILD_IMAGE := vmlinuz
 KBUILD_DEFCONFIG := default_defconfig
 
 NM		= sh $(srctree)/arch/parisc/nm
-CHECKFLAGS	+= -D__hppa__=1 -mbig-endian
+CHECKFLAGS	+= -D__hppa__=1
 LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 export LIBGCC
 
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index c79936d02..68a690442 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -18,7 +18,7 @@ KBUILD_CFLAGS	+= -m64
 KBUILD_AFLAGS	+= -m64
 UTS_MACHINE	:= s390x
 STACK_SIZE	:= 16384
-CHECKFLAGS	+= -D__s390__ -D__s390x__ -mbig-endian
+CHECKFLAGS	+= -D__s390__ -D__s390x__
 
 export LD_BFD
 
-- 
2.17.0



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From: Randy Dunlap <rdunlap@infradead.org>
Newsgroups: gmane.linux.kernel,gmane.linux.kbuild.devel,gmane.linux.ports.parisc
Subject: Re: [PATCH] kbuild: add endianness flag to CHEKCFLAGS
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Cc: Michal Marek <michal.lkml@markovi.net>,
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To: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>,
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        Jonas Bonn <jonas@southpole.se>,
        Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
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On 05/28/2018 10:00 AM, Luc Van Oostenryck wrote:
> The kernel depends on macros like __BYTE_ORDER__,
> __BIG_ENDIAN__ or __LITTLE_ENDIAN__.
> 
> OTOH, sparse doesn't know about the endianness of the kernel and
> by default uses the same as the machine on which sparse was built.
> 
> Ensure that sparse can predefine the macros corresponding to
> how the kernel was configured by adding -m{big,little}-endian
> to CHECKFLAGS in the main Makefile (and so for all archs).
> Also, remove the equivalent done in arch specific Makefiles.
> 
> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
> ---
>  Makefile               | 3 +++
>  arch/openrisc/Makefile | 1 -
>  arch/parisc/Makefile   | 2 +-
>  arch/s390/Makefile     | 2 +-
>  4 files changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 56ba070df..057a278d2 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -878,6 +878,9 @@ ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
>  LDFLAGS_vmlinux	+= $(call ld-option, -X,)
>  endif
>  
> +# insure the checker run with the right endianness
> +CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig,-mlittle)

Does this need to be                           -mbig-endian,-mlittle-endian)

> +
>  # Default kernel image to build when no specific target is given.
>  # KBUILD_IMAGE may be overruled on the command line or
>  # set in the environment
> diff --git a/arch/openrisc/Makefile b/arch/openrisc/Makefile
> index cf8802962..89076a66e 100644
> --- a/arch/openrisc/Makefile
> +++ b/arch/openrisc/Makefile
> @@ -25,7 +25,6 @@ LDFLAGS_vmlinux :=
>  LIBGCC 		:= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
>  
>  KBUILD_CFLAGS	+= -pipe -ffixed-r10 -D__linux__
> -CHECKFLAGS	+= -mbig-endian
>  
>  ifeq ($(CONFIG_OPENRISC_HAVE_INST_MUL),y)
>  	KBUILD_CFLAGS += $(call cc-option,-mhard-mul)
> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
> index 34ac503e2..348ae4779 100644
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
> @@ -22,7 +22,7 @@ KBUILD_IMAGE := vmlinuz
>  KBUILD_DEFCONFIG := default_defconfig
>  
>  NM		= sh $(srctree)/arch/parisc/nm
> -CHECKFLAGS	+= -D__hppa__=1 -mbig-endian
> +CHECKFLAGS	+= -D__hppa__=1
>  LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
>  export LIBGCC
>  
> diff --git a/arch/s390/Makefile b/arch/s390/Makefile
> index c79936d02..68a690442 100644
> --- a/arch/s390/Makefile
> +++ b/arch/s390/Makefile
> @@ -18,7 +18,7 @@ KBUILD_CFLAGS	+= -m64
>  KBUILD_AFLAGS	+= -m64
>  UTS_MACHINE	:= s390x
>  STACK_SIZE	:= 16384
> -CHECKFLAGS	+= -D__s390__ -D__s390x__ -mbig-endian
> +CHECKFLAGS	+= -D__s390__ -D__s390x__
>  
>  export LD_BFD
>  
> 


-- 
~Randy


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Newsgroups: gmane.linux.kernel,gmane.linux.kbuild.devel,gmane.linux.ports.parisc
Subject: Re: [PATCH] kbuild: add endianness flag to CHEKCFLAGS
Date: Mon, 28 May 2018 20:27:19 +0200
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Cc: Masahiro Yamada <yamada.masahiro@socionext.com>,
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        Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
        Stafford Horne <shorne@gmail.com>,
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To: Randy Dunlap <rdunlap@infradead.org>
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On Mon, May 28, 2018 at 10:31:58AM -0700, Randy Dunlap wrote:
> On 05/28/2018 10:00 AM, Luc Van Oostenryck wrote:
> > +# insure the checker run with the right endianness
> > +CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig,-mlittle)
> 
> Does this need to be                           -mbig-endian,-mlittle-endian)

Of course it does. *sigh*
Thanks for noticing that. Correct patch is on the fly.

-- Luc 


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The kernel depends on macros like __BYTE_ORDER__,
__BIG_ENDIAN__ or __LITTLE_ENDIAN__.

OTOH, sparse doesn't know about the endianness of the kernel and
by default uses the same as the machine on which sparse was built.

Ensure that sparse can predefine the macros corresponding to
how the kernel was configured by adding -m{big,little}-endian
to CHECKFLAGS in the main Makefile (and so for all archs).
Also, remove the equivalent done in arch specific Makefiles.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
---
 Makefile               | 3 +++
 arch/openrisc/Makefile | 1 -
 arch/parisc/Makefile   | 2 +-
 arch/s390/Makefile     | 2 +-
 4 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 56ba070df..6c6610913 100644
--- a/Makefile
+++ b/Makefile
@@ -878,6 +878,9 @@ ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
 LDFLAGS_vmlinux	+= $(call ld-option, -X,)
 endif
 
+# insure the checker run with the right endianness
+CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
+
 # Default kernel image to build when no specific target is given.
 # KBUILD_IMAGE may be overruled on the command line or
 # set in the environment
diff --git a/arch/openrisc/Makefile b/arch/openrisc/Makefile
index cf8802962..89076a66e 100644
--- a/arch/openrisc/Makefile
+++ b/arch/openrisc/Makefile
@@ -25,7 +25,6 @@ LDFLAGS_vmlinux :=
 LIBGCC 		:= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 
 KBUILD_CFLAGS	+= -pipe -ffixed-r10 -D__linux__
-CHECKFLAGS	+= -mbig-endian
 
 ifeq ($(CONFIG_OPENRISC_HAVE_INST_MUL),y)
 	KBUILD_CFLAGS += $(call cc-option,-mhard-mul)
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 34ac503e2..348ae4779 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -22,7 +22,7 @@ KBUILD_IMAGE := vmlinuz
 KBUILD_DEFCONFIG := default_defconfig
 
 NM		= sh $(srctree)/arch/parisc/nm
-CHECKFLAGS	+= -D__hppa__=1 -mbig-endian
+CHECKFLAGS	+= -D__hppa__=1
 LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 export LIBGCC
 
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index c79936d02..68a690442 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -18,7 +18,7 @@ KBUILD_CFLAGS	+= -m64
 KBUILD_AFLAGS	+= -m64
 UTS_MACHINE	:= s390x
 STACK_SIZE	:= 16384
-CHECKFLAGS	+= -D__s390__ -D__s390x__ -mbig-endian
+CHECKFLAGS	+= -D__s390__ -D__s390x__
 
 export LD_BFD
 
-- 
2.17.0



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2018-05-29 3:27 GMT+09:00 Luc Van Oostenryck <luc.vanoostenryck@gmail.com>:
> The kernel depends on macros like __BYTE_ORDER__,
> __BIG_ENDIAN__ or __LITTLE_ENDIAN__.
>
> OTOH, sparse doesn't know about the endianness of the kernel and
> by default uses the same as the machine on which sparse was built.
>
> Ensure that sparse can predefine the macros corresponding to
> how the kernel was configured by adding -m{big,little}-endian
> to CHECKFLAGS in the main Makefile (and so for all archs).
> Also, remove the equivalent done in arch specific Makefiles.
>
> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
> ---


Applied to linux-kbuild. Thanks.


>  Makefile               | 3 +++
>  arch/openrisc/Makefile | 1 -
>  arch/parisc/Makefile   | 2 +-
>  arch/s390/Makefile     | 2 +-
>  4 files changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/Makefile b/Makefile
> index 56ba070df..6c6610913 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -878,6 +878,9 @@ ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
>  LDFLAGS_vmlinux        += $(call ld-option, -X,)
>  endif
>
> +# insure the checker run with the right endianness
> +CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
> +
>  # Default kernel image to build when no specific target is given.
>  # KBUILD_IMAGE may be overruled on the command line or
>  # set in the environment
> diff --git a/arch/openrisc/Makefile b/arch/openrisc/Makefile
> index cf8802962..89076a66e 100644
> --- a/arch/openrisc/Makefile
> +++ b/arch/openrisc/Makefile
> @@ -25,7 +25,6 @@ LDFLAGS_vmlinux :=
>  LIBGCC                 := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
>
>  KBUILD_CFLAGS  += -pipe -ffixed-r10 -D__linux__
> -CHECKFLAGS     += -mbig-endian
>
>  ifeq ($(CONFIG_OPENRISC_HAVE_INST_MUL),y)
>         KBUILD_CFLAGS += $(call cc-option,-mhard-mul)
> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
> index 34ac503e2..348ae4779 100644
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
> @@ -22,7 +22,7 @@ KBUILD_IMAGE := vmlinuz
>  KBUILD_DEFCONFIG := default_defconfig
>
>  NM             = sh $(srctree)/arch/parisc/nm
> -CHECKFLAGS     += -D__hppa__=1 -mbig-endian
> +CHECKFLAGS     += -D__hppa__=1
>  LIBGCC         = $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
>  export LIBGCC
>
> diff --git a/arch/s390/Makefile b/arch/s390/Makefile
> index c79936d02..68a690442 100644
> --- a/arch/s390/Makefile
> +++ b/arch/s390/Makefile
> @@ -18,7 +18,7 @@ KBUILD_CFLAGS += -m64
>  KBUILD_AFLAGS  += -m64
>  UTS_MACHINE    := s390x
>  STACK_SIZE     := 16384
> -CHECKFLAGS     += -D__s390__ -D__s390x__ -mbig-endian
> +CHECKFLAGS     += -D__s390__ -D__s390x__
>
>  export LD_BFD
>
> --
> 2.17.0
>
> --
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Best Regards
Masahiro Yamada


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Subject: [PATCH] kbuild: add machine size to CHEKCFLAGS
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By default, sparse assumes a 64bit machine when compiled on x86-64
and 32bit when compiled on anything else.

This can of course create all sort of problems for the other archs, like
issuing false warnings ('shift too big (32) for type unsigned long'), or
worse, failing to emit legitimate warnings.

Fix this by adding the -m32/-m64 flag, depending on CONFIG_64BIT,
to CHECKFLAGS in the main Makefile (and so for all archs).
Also, remove the now unneeded -m32/-m64 in arch specific Makefiles.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
---
 Makefile             | 3 +++
 arch/alpha/Makefile  | 2 +-
 arch/arm/Makefile    | 2 +-
 arch/arm64/Makefile  | 2 +-
 arch/ia64/Makefile   | 2 +-
 arch/mips/Makefile   | 3 ---
 arch/parisc/Makefile | 2 +-
 arch/sparc/Makefile  | 2 +-
 arch/x86/Makefile    | 2 +-
 9 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/Makefile b/Makefile
index 6c6610913..18379987c 100644
--- a/Makefile
+++ b/Makefile
@@ -881,6 +881,9 @@ endif
 # insure the checker run with the right endianness
 CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
 
+# the checker needs the correct machine size
+CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
+
 # Default kernel image to build when no specific target is given.
 # KBUILD_IMAGE may be overruled on the command line or
 # set in the environment
diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile
index 2cc3cc519..c5ec8c09c 100644
--- a/arch/alpha/Makefile
+++ b/arch/alpha/Makefile
@@ -11,7 +11,7 @@
 NM := $(NM) -B
 
 LDFLAGS_vmlinux	:= -static -N #-relax
-CHECKFLAGS	+= -D__alpha__ -m64
+CHECKFLAGS	+= -D__alpha__
 cflags-y	:= -pipe -mno-fp-regs -ffixed-8
 cflags-y	+= $(call cc-option, -fno-jump-tables)
 
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index e4e537f27..f32a5468d 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -135,7 +135,7 @@ endif
 KBUILD_CFLAGS	+=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
 KBUILD_AFLAGS	+=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
 
-CHECKFLAGS	+= -D__arm__ -m32
+CHECKFLAGS	+= -D__arm__
 
 #Default value
 head-y		:= arch/arm/kernel/head$(MMUEXT).o
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 87f7d2f9f..3c353b471 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -78,7 +78,7 @@ LDFLAGS		+= -maarch64linux
 UTS_MACHINE	:= aarch64
 endif
 
-CHECKFLAGS	+= -D__aarch64__ -m64
+CHECKFLAGS	+= -D__aarch64__
 
 ifeq ($(CONFIG_ARM64_MODULE_PLTS),y)
 KBUILD_LDFLAGS_MODULE	+= -T $(srctree)/arch/arm64/kernel/module.lds
diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
index 2dd7f519a..45f59808b 100644
--- a/arch/ia64/Makefile
+++ b/arch/ia64/Makefile
@@ -18,7 +18,7 @@ READELF := $(CROSS_COMPILE)readelf
 
 export AWK
 
-CHECKFLAGS	+= -m64 -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__
+CHECKFLAGS	+= -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__
 
 OBJCOPYFLAGS	:= --strip-all
 LDFLAGS_vmlinux	:= -static
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 5e9fce076..e2122cca4 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -309,9 +309,6 @@ ifdef CONFIG_MIPS
 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
 	egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
 	sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
-ifdef CONFIG_64BIT
-CHECKFLAGS		+= -m64
-endif
 endif
 
 OBJCOPYFLAGS		+= --remove-section=.reginfo
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 348ae4779..714284ea6 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -28,7 +28,7 @@ export LIBGCC
 
 ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
-CHECKFLAGS	+= -D__LP64__=1 -m64
+CHECKFLAGS	+= -D__LP64__=1
 CC_ARCHES	= hppa64
 LD_BFD		:= elf64-hppa-linux
 else # 32-bit
diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
index edac927e4..966a13d2b 100644
--- a/arch/sparc/Makefile
+++ b/arch/sparc/Makefile
@@ -39,7 +39,7 @@ else
 # sparc64
 #
 
-CHECKFLAGS    += -D__sparc__ -D__sparc_v9__ -D__arch64__ -m64
+CHECKFLAGS    += -D__sparc__ -D__sparc_v9__ -D__arch64__
 LDFLAGS       := -m elf64_sparc
 export BITS   := 64
 UTS_MACHINE   := sparc64
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 60135cbd9..f0a6ea224 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -94,7 +94,7 @@ ifeq ($(CONFIG_X86_32),y)
 else
         BITS := 64
         UTS_MACHINE := x86_64
-        CHECKFLAGS += -D__x86_64__ -m64
+        CHECKFLAGS += -D__x86_64__
 
         biarch := -m64
         KBUILD_AFLAGS += -m64
-- 
2.17.0



From - Thu Nov 08 21:41:32 2018
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Subject: Re: [PATCH] kbuild: add machine size to CHEKCFLAGS
Date: Thu, 31 May 2018 00:00:03 +0200
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Cc: Masahiro Yamada <yamada.masahiro@socionext.com>,
        Michal Marek <michal.lkml@markovi.net>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
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        Ingo Molnar <mingo@redhat.com>,
        "H . Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
        Brendan Higgins <brendanhiggins@google.com>,
To: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
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Hi Luc,

The typo in the subject made me curious...

Am 30.05.2018 um 22:48 schrieb Luc Van Oostenryck:
> By default, sparse assumes a 64bit machine when compiled on x86-64
> and 32bit when compiled on anything else.
> 
> This can of course create all sort of problems for the other archs, like
> issuing false warnings ('shift too big (32) for type unsigned long'), or
> worse, failing to emit legitimate warnings.
> 
> Fix this by adding the -m32/-m64 flag, depending on CONFIG_64BIT,
> to CHECKFLAGS in the main Makefile (and so for all archs).
> Also, remove the now unneeded -m32/-m64 in arch specific Makefiles.
> 
> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
> ---
>  Makefile             | 3 +++
>  arch/alpha/Makefile  | 2 +-
>  arch/arm/Makefile    | 2 +-
>  arch/arm64/Makefile  | 2 +-
>  arch/ia64/Makefile   | 2 +-
>  arch/mips/Makefile   | 3 ---
>  arch/parisc/Makefile | 2 +-
>  arch/sparc/Makefile  | 2 +-
>  arch/x86/Makefile    | 2 +-
>  9 files changed, 10 insertions(+), 10 deletions(-)

What about the architectures not touched by your patch that previously
had no -m32/-m64? (arc, c6x, h8300, hexagon, m68k, microblaze, nds32,
nios2, openrisc, powerpc, riscv, s390, sh, unicore32, xtensa)

You forgot to CC them on this patch.

Have you really checked that all their toolchains support the -m32/-m64
flags you newly introduce for them? Apart from non-biarch architectures,
I'm thinking of 31-bit s390 as a corner case where !64 != 32.

Regards,
Andreas

-- 
SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)


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Subject: Re: [PATCH] kbuild: add machine size to CHEKCFLAGS
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Cc: Masahiro Yamada <yamada.masahiro@socionext.com>,
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        Will Deacon <will.deacon@arm.com>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Ralf Baechle <ralf@linux-mips.org>,
        James Hogan <jhogan@kernel.org>,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        "David S . Miller" <davem@davemloft.net>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        "H . Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
        Brendan Higgins <brendanhiggins@google.com>,
To: =?UTF-8?Q?Andreas_F=c3=a4rber?= <afaerber@suse.de>,
        Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
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On 05/30/2018 05:00 PM, Andreas Färber wrote:
> What about the architectures not touched by your patch that previously
> had no -m32/-m64? (arc, c6x, h8300, hexagon, m68k, microblaze, nds32,
> nios2, openrisc, powerpc, riscv, s390, sh, unicore32, xtensa)
> 
> You forgot to CC them on this patch.

A) He cc'd arch/sh on the previous patch earlier today, to which I replied:

https://marc.info/?l=linux-sh&m=152769132515226&w=2

B) Every change to common infrastructure should cc: every arch? Really? So like
filesystem changes and stuff to?

> Have you really checked that all their toolchains support the -m32/-m64
> flags you newly introduce for them? Apart from non-biarch architectures,
> I'm thinking of 31-bit s390 as a corner case where !64 != 32.

1) Last I heard Linux implements lp64:
   http://www.unix.org/whitepapers/64bit.html

2) it's unlikely to be worse than it was before the patch,

3) last I checked https://github.com/landley/mkroot boots to an s390 shell
prompt under qemu, although I haven't tried building with this patch. (And you
may still need to add HOST_EXTRA='lex yacc bison flex' to the command line
unless they've re-added the _shipped versions like the old kconfig had...) Point
is, shouldn't be too hard to test it. Presumably that's why we have an -rc1 and
then 6 more -rc versions each release...

Rob


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Subject: Re: [PATCH] kbuild: add machine size to CHEKCFLAGS
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To: =?UTF-8?Q?Andreas_F=C3=A4rber?= <afaerber@suse.de>
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On Thu, May 31, 2018 at 12:00 AM, Andreas F=C3=A4rber <afaerber@suse.de> wr=
ote:
> Hi Luc,
>
> The typo in the subject made me curious...
>
> Am 30.05.2018 um 22:48 schrieb Luc Van Oostenryck:
>> By default, sparse assumes a 64bit machine when compiled on x86-64
>> and 32bit when compiled on anything else.
>>
>> This can of course create all sort of problems for the other archs, like
>> issuing false warnings ('shift too big (32) for type unsigned long'), or
>> worse, failing to emit legitimate warnings.
>>
>> Fix this by adding the -m32/-m64 flag, depending on CONFIG_64BIT,
>> to CHECKFLAGS in the main Makefile (and so for all archs).
>> Also, remove the now unneeded -m32/-m64 in arch specific Makefiles.
>>
>> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
>> ---
>>  Makefile             | 3 +++
>>  arch/alpha/Makefile  | 2 +-
>>  arch/arm/Makefile    | 2 +-
>>  arch/arm64/Makefile  | 2 +-
>>  arch/ia64/Makefile   | 2 +-
>>  arch/mips/Makefile   | 3 ---
>>  arch/parisc/Makefile | 2 +-
>>  arch/sparc/Makefile  | 2 +-
>>  arch/x86/Makefile    | 2 +-
>>  9 files changed, 10 insertions(+), 10 deletions(-)
>
> What about the architectures not touched by your patch that previously
> had no -m32/-m64? (arc, c6x, h8300, hexagon, m68k, microblaze, nds32,
> nios2, openrisc, powerpc, riscv, s390, sh, unicore32, xtensa)

As explained in the patch, by default sparse uses -m64 if compiled on x86-6=
4
and 32bit on everything else (well, more recent versions use -m64 if
compiled on any 64 bit machine). I think that most ppc devs use a ppc
machine and so ppc was most probably fine (at least ppc64) but I suspect
that most of these others archs either had never sparse used on them
or had a lot of wrong warnings. IOW, it was maybe OK but most probably
incorrect for them and now it is OK.

> You forgot to CC them on this patch.

I didn't thought/knew  it was needed and the CC list is already
quite long but, if needed, no problem for me.

> Have you really checked that all their toolchains support the -m32/-m64
> flags you newly introduce for them? Apart from non-biarch architectures,
> I'm thinking of 31-bit s390 as a corner case where !64 !=3D 32.

Hmm, there is no change to anything I call 'toolchain related', like
compiler and linker. The only change is sparse (or any other checker)
receiving now a correct and explicit -m32 or -m64.

For s390, as far as I know:
1) it has CONFIG_64BIT unconditionally definee (because the old 31bit
   is no more supported, now everything is s390x only).
2) even if the *address space* was only 31 bit, I'm very sure
   that sizeof(long) and sizeof(void*) was 4 on these machine
   hence -m32 would have been correct.

Best regards,
-- Luc


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Subject: Re: [PATCH] kbuild: add machine size to CHEKCFLAGS
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To: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>,
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From: Masahiro Yamada <yamada.masahiro@socionext.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kbuild.devel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: Re: [PATCH] kbuild: add machine size to CHEKCFLAGS
Date: Thu, 31 May 2018 10:31:49 +0900
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References: <20180530204838.22079-1-luc.vanoostenryck@gmail.com>
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Cc: =?UTF-8?Q?Andreas_F=C3=A4rber?= <afaerber@suse.de>,
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To: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
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2018-05-31 8:06 GMT+09:00 Luc Van Oostenryck <luc.vanoostenryck@gmail.com>:
> On Thu, May 31, 2018 at 12:00 AM, Andreas F=C3=A4rber <afaerber@suse.de> =
wrote:
>> Hi Luc,
>>
>> The typo in the subject made me curious...
>>
>> Am 30.05.2018 um 22:48 schrieb Luc Van Oostenryck:
>>> By default, sparse assumes a 64bit machine when compiled on x86-64
>>> and 32bit when compiled on anything else.
>>>
>>> This can of course create all sort of problems for the other archs, lik=
e
>>> issuing false warnings ('shift too big (32) for type unsigned long'), o=
r
>>> worse, failing to emit legitimate warnings.
>>>
>>> Fix this by adding the -m32/-m64 flag, depending on CONFIG_64BIT,
>>> to CHECKFLAGS in the main Makefile (and so for all archs).
>>> Also, remove the now unneeded -m32/-m64 in arch specific Makefiles.
>>>
>>> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
>>> ---
>>>  Makefile             | 3 +++
>>>  arch/alpha/Makefile  | 2 +-
>>>  arch/arm/Makefile    | 2 +-
>>>  arch/arm64/Makefile  | 2 +-
>>>  arch/ia64/Makefile   | 2 +-
>>>  arch/mips/Makefile   | 3 ---
>>>  arch/parisc/Makefile | 2 +-
>>>  arch/sparc/Makefile  | 2 +-
>>>  arch/x86/Makefile    | 2 +-
>>>  9 files changed, 10 insertions(+), 10 deletions(-)
>>
>> What about the architectures not touched by your patch that previously
>> had no -m32/-m64? (arc, c6x, h8300, hexagon, m68k, microblaze, nds32,
>> nios2, openrisc, powerpc, riscv, s390, sh, unicore32, xtensa)
>
> As explained in the patch, by default sparse uses -m64 if compiled on x86=
-64
> and 32bit on everything else (well, more recent versions use -m64 if
> compiled on any 64 bit machine). I think that most ppc devs use a ppc
> machine and so ppc was most probably fine (at least ppc64) but I suspect
> that most of these others archs either had never sparse used on them
> or had a lot of wrong warnings. IOW, it was maybe OK but most probably
> incorrect for them and now it is OK.
>
>> You forgot to CC them on this patch.
>
> I didn't thought/knew  it was needed and the CC list is already
> quite long but, if needed, no problem for me.
>
>> Have you really checked that all their toolchains support the -m32/-m64
>> flags you newly introduce for them? Apart from non-biarch architectures,
>> I'm thinking of 31-bit s390 as a corner case where !64 !=3D 32.
>
> Hmm, there is no change to anything I call 'toolchain related', like
> compiler and linker. The only change is sparse (or any other checker)
> receiving now a correct and explicit -m32 or -m64.


Right.  We are talking about sparse.
Nobody needs to test vmlinux or whatever objects.

Except the typo in the subject (I can locally fix it up, though),
this patch looks good to me.






> For s390, as far as I know:
> 1) it has CONFIG_64BIT unconditionally definee (because the old 31bit
>    is no more supported, now everything is s390x only).
> 2) even if the *address space* was only 31 bit, I'm very sure
>    that sizeof(long) and sizeof(void*) was 4 on these machine
>    hence -m32 would have been correct.
>
> Best regards,
> -- Luc
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kbuild" i=
n
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html



--=20
Best Regards
Masahiro Yamada


From - Thu Nov 08 21:41:33 2018
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X-Mozilla-Keys:                                                                                 
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From: Daniel Thompson <daniel.thompson@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.kbuild.devel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: Re: [PATCH] kbuild: add machine size to CHEKCFLAGS
Date: Thu, 31 May 2018 09:38:32 +0100
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Cc: Masahiro Yamada <yamada.masahiro@socionext.com>,
        Michal Marek <michal.lkml@markovi.net>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
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        Ingo Molnar <mingo@redhat.com>,
        "H . Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
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To: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
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Xref: news.gmane.org gmane.linux.kernel:2783425 gmane.linux.kbuild.devel:20171 gmane.linux.ports.alpha:5106 gmane.linux.ports.arm.kernel:654258 gmane.linux.ports.ia64:28849 gmane.linux.ports.mips.general:64937 gmane.linux.ports.parisc:28675 gmane.linux.ports.sparc:27929
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2783425>

On Wed, May 30, 2018 at 10:48:38PM +0200, Luc Van Oostenryck wrote:
> By default, sparse assumes a 64bit machine when compiled on x86-64
> and 32bit when compiled on anything else.
> 
> This can of course create all sort of problems for the other archs, like
> issuing false warnings ('shift too big (32) for type unsigned long'), or
> worse, failing to emit legitimate warnings.
> 
> Fix this by adding the -m32/-m64 flag, depending on CONFIG_64BIT,
> to CHECKFLAGS in the main Makefile (and so for all archs).
> Also, remove the now unneeded -m32/-m64 in arch specific Makefiles.
> 
> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>

Looks like a good clean up to me. However the typo in the Subject: line
did attract my attention.


Daniel.


> ---
>  Makefile             | 3 +++
>  arch/alpha/Makefile  | 2 +-
>  arch/arm/Makefile    | 2 +-
>  arch/arm64/Makefile  | 2 +-
>  arch/ia64/Makefile   | 2 +-
>  arch/mips/Makefile   | 3 ---
>  arch/parisc/Makefile | 2 +-
>  arch/sparc/Makefile  | 2 +-
>  arch/x86/Makefile    | 2 +-
>  9 files changed, 10 insertions(+), 10 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 6c6610913..18379987c 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -881,6 +881,9 @@ endif
>  # insure the checker run with the right endianness
>  CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
>  
> +# the checker needs the correct machine size
> +CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
> +
>  # Default kernel image to build when no specific target is given.
>  # KBUILD_IMAGE may be overruled on the command line or
>  # set in the environment
> diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile
> index 2cc3cc519..c5ec8c09c 100644
> --- a/arch/alpha/Makefile
> +++ b/arch/alpha/Makefile
> @@ -11,7 +11,7 @@
>  NM := $(NM) -B
>  
>  LDFLAGS_vmlinux	:= -static -N #-relax
> -CHECKFLAGS	+= -D__alpha__ -m64
> +CHECKFLAGS	+= -D__alpha__
>  cflags-y	:= -pipe -mno-fp-regs -ffixed-8
>  cflags-y	+= $(call cc-option, -fno-jump-tables)
>  
> diff --git a/arch/arm/Makefile b/arch/arm/Makefile
> index e4e537f27..f32a5468d 100644
> --- a/arch/arm/Makefile
> +++ b/arch/arm/Makefile
> @@ -135,7 +135,7 @@ endif
>  KBUILD_CFLAGS	+=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
>  KBUILD_AFLAGS	+=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
>  
> -CHECKFLAGS	+= -D__arm__ -m32
> +CHECKFLAGS	+= -D__arm__
>  
>  #Default value
>  head-y		:= arch/arm/kernel/head$(MMUEXT).o
> diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
> index 87f7d2f9f..3c353b471 100644
> --- a/arch/arm64/Makefile
> +++ b/arch/arm64/Makefile
> @@ -78,7 +78,7 @@ LDFLAGS		+= -maarch64linux
>  UTS_MACHINE	:= aarch64
>  endif
>  
> -CHECKFLAGS	+= -D__aarch64__ -m64
> +CHECKFLAGS	+= -D__aarch64__
>  
>  ifeq ($(CONFIG_ARM64_MODULE_PLTS),y)
>  KBUILD_LDFLAGS_MODULE	+= -T $(srctree)/arch/arm64/kernel/module.lds
> diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
> index 2dd7f519a..45f59808b 100644
> --- a/arch/ia64/Makefile
> +++ b/arch/ia64/Makefile
> @@ -18,7 +18,7 @@ READELF := $(CROSS_COMPILE)readelf
>  
>  export AWK
>  
> -CHECKFLAGS	+= -m64 -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__
> +CHECKFLAGS	+= -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__
>  
>  OBJCOPYFLAGS	:= --strip-all
>  LDFLAGS_vmlinux	:= -static
> diff --git a/arch/mips/Makefile b/arch/mips/Makefile
> index 5e9fce076..e2122cca4 100644
> --- a/arch/mips/Makefile
> +++ b/arch/mips/Makefile
> @@ -309,9 +309,6 @@ ifdef CONFIG_MIPS
>  CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
>  	egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
>  	sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
> -ifdef CONFIG_64BIT
> -CHECKFLAGS		+= -m64
> -endif
>  endif
>  
>  OBJCOPYFLAGS		+= --remove-section=.reginfo
> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
> index 348ae4779..714284ea6 100644
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
> @@ -28,7 +28,7 @@ export LIBGCC
>  
>  ifdef CONFIG_64BIT
>  UTS_MACHINE	:= parisc64
> -CHECKFLAGS	+= -D__LP64__=1 -m64
> +CHECKFLAGS	+= -D__LP64__=1
>  CC_ARCHES	= hppa64
>  LD_BFD		:= elf64-hppa-linux
>  else # 32-bit
> diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
> index edac927e4..966a13d2b 100644
> --- a/arch/sparc/Makefile
> +++ b/arch/sparc/Makefile
> @@ -39,7 +39,7 @@ else
>  # sparc64
>  #
>  
> -CHECKFLAGS    += -D__sparc__ -D__sparc_v9__ -D__arch64__ -m64
> +CHECKFLAGS    += -D__sparc__ -D__sparc_v9__ -D__arch64__
>  LDFLAGS       := -m elf64_sparc
>  export BITS   := 64
>  UTS_MACHINE   := sparc64
> diff --git a/arch/x86/Makefile b/arch/x86/Makefile
> index 60135cbd9..f0a6ea224 100644
> --- a/arch/x86/Makefile
> +++ b/arch/x86/Makefile
> @@ -94,7 +94,7 @@ ifeq ($(CONFIG_X86_32),y)
>  else
>          BITS := 64
>          UTS_MACHINE := x86_64
> -        CHECKFLAGS += -D__x86_64__ -m64
> +        CHECKFLAGS += -D__x86_64__
>  
>          biarch := -m64
>          KBUILD_AFLAGS += -m64
> -- 
> 2.17.0
> 


From - Thu Nov 08 21:41:33 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kbuild.devel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.sparc
Subject: Re: [PATCH] kbuild: add machine size to CHEKCFLAGS
Date: Sat, 2 Jun 2018 16:53:48 +0900
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Cc: Michal Marek <michal.lkml@markovi.net>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Tony Luck <tony.luck@intel.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Ralf Baechle <ralf@linux-mips.org>,
        James Hogan <jhogan@kernel.org>,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        "David S . Miller" <davem@davemloft.net>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        "H . Peter Anvin" <hpa@zytor.com>, X86 ML <x86@kernel.org>,
        Brendan Higgins <brendanhiggins@google.com>,
        Martin Blumenstingl <martin.blumenstingl@googl
To: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2785169>

2018-05-31 5:48 GMT+09:00 Luc Van Oostenryck <luc.vanoostenryck@gmail.com>:
> By default, sparse assumes a 64bit machine when compiled on x86-64
> and 32bit when compiled on anything else.
>
> This can of course create all sort of problems for the other archs, like
> issuing false warnings ('shift too big (32) for type unsigned long'), or
> worse, failing to emit legitimate warnings.
>
> Fix this by adding the -m32/-m64 flag, depending on CONFIG_64BIT,
> to CHECKFLAGS in the main Makefile (and so for all archs).
> Also, remove the now unneeded -m32/-m64 in arch specific Makefiles.
>
> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
> ---

Fixed CHEKCFLAGS -> CHECKFLAGS
and applied to linux-kbuild.  Thanks!



>  Makefile             | 3 +++
>  arch/alpha/Makefile  | 2 +-
>  arch/arm/Makefile    | 2 +-
>  arch/arm64/Makefile  | 2 +-
>  arch/ia64/Makefile   | 2 +-
>  arch/mips/Makefile   | 3 ---
>  arch/parisc/Makefile | 2 +-
>  arch/sparc/Makefile  | 2 +-
>  arch/x86/Makefile    | 2 +-
>  9 files changed, 10 insertions(+), 10 deletions(-)
>
> diff --git a/Makefile b/Makefile
> index 6c6610913..18379987c 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -881,6 +881,9 @@ endif
>  # insure the checker run with the right endianness
>  CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
>
> +# the checker needs the correct machine size
> +CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
> +
>  # Default kernel image to build when no specific target is given.
>  # KBUILD_IMAGE may be overruled on the command line or
>  # set in the environment
> diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile
> index 2cc3cc519..c5ec8c09c 100644
> --- a/arch/alpha/Makefile
> +++ b/arch/alpha/Makefile
> @@ -11,7 +11,7 @@
>  NM := $(NM) -B
>
>  LDFLAGS_vmlinux        := -static -N #-relax
> -CHECKFLAGS     += -D__alpha__ -m64
> +CHECKFLAGS     += -D__alpha__
>  cflags-y       := -pipe -mno-fp-regs -ffixed-8
>  cflags-y       += $(call cc-option, -fno-jump-tables)
>
> diff --git a/arch/arm/Makefile b/arch/arm/Makefile
> index e4e537f27..f32a5468d 100644
> --- a/arch/arm/Makefile
> +++ b/arch/arm/Makefile
> @@ -135,7 +135,7 @@ endif
>  KBUILD_CFLAGS  +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
>  KBUILD_AFLAGS  +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
>
> -CHECKFLAGS     += -D__arm__ -m32
> +CHECKFLAGS     += -D__arm__
>
>  #Default value
>  head-y         := arch/arm/kernel/head$(MMUEXT).o
> diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
> index 87f7d2f9f..3c353b471 100644
> --- a/arch/arm64/Makefile
> +++ b/arch/arm64/Makefile
> @@ -78,7 +78,7 @@ LDFLAGS               += -maarch64linux
>  UTS_MACHINE    := aarch64
>  endif
>
> -CHECKFLAGS     += -D__aarch64__ -m64
> +CHECKFLAGS     += -D__aarch64__
>
>  ifeq ($(CONFIG_ARM64_MODULE_PLTS),y)
>  KBUILD_LDFLAGS_MODULE  += -T $(srctree)/arch/arm64/kernel/module.lds
> diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
> index 2dd7f519a..45f59808b 100644
> --- a/arch/ia64/Makefile
> +++ b/arch/ia64/Makefile
> @@ -18,7 +18,7 @@ READELF := $(CROSS_COMPILE)readelf
>
>  export AWK
>
> -CHECKFLAGS     += -m64 -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__
> +CHECKFLAGS     += -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__
>
>  OBJCOPYFLAGS   := --strip-all
>  LDFLAGS_vmlinux        := -static
> diff --git a/arch/mips/Makefile b/arch/mips/Makefile
> index 5e9fce076..e2122cca4 100644
> --- a/arch/mips/Makefile
> +++ b/arch/mips/Makefile
> @@ -309,9 +309,6 @@ ifdef CONFIG_MIPS
>  CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
>         egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
>         sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
> -ifdef CONFIG_64BIT
> -CHECKFLAGS             += -m64
> -endif
>  endif
>
>  OBJCOPYFLAGS           += --remove-section=.reginfo
> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
> index 348ae4779..714284ea6 100644
> --- a/arch/parisc/Makefile
> +++ b/arch/parisc/Makefile
> @@ -28,7 +28,7 @@ export LIBGCC
>
>  ifdef CONFIG_64BIT
>  UTS_MACHINE    := parisc64
> -CHECKFLAGS     += -D__LP64__=1 -m64
> +CHECKFLAGS     += -D__LP64__=1
>  CC_ARCHES      = hppa64
>  LD_BFD         := elf64-hppa-linux
>  else # 32-bit
> diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
> index edac927e4..966a13d2b 100644
> --- a/arch/sparc/Makefile
> +++ b/arch/sparc/Makefile
> @@ -39,7 +39,7 @@ else
>  # sparc64
>  #
>
> -CHECKFLAGS    += -D__sparc__ -D__sparc_v9__ -D__arch64__ -m64
> +CHECKFLAGS    += -D__sparc__ -D__sparc_v9__ -D__arch64__
>  LDFLAGS       := -m elf64_sparc
>  export BITS   := 64
>  UTS_MACHINE   := sparc64
> diff --git a/arch/x86/Makefile b/arch/x86/Makefile
> index 60135cbd9..f0a6ea224 100644
> --- a/arch/x86/Makefile
> +++ b/arch/x86/Makefile
> @@ -94,7 +94,7 @@ ifeq ($(CONFIG_X86_32),y)
>  else
>          BITS := 64
>          UTS_MACHINE := x86_64
> -        CHECKFLAGS += -D__x86_64__ -m64
> +        CHECKFLAGS += -D__x86_64__
>
>          biarch := -m64
>          KBUILD_AFLAGS += -m64
> --
> 2.17.0
>



-- 
Best Regards
Masahiro Yamada


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Subject: [PATCH v5 0/4] resource: Use list_head to link sibling resource
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Archived-At: <http://permalink.gmane.org/gmane.linux.hardware.nvdimm/10292>

This patchset is doing:
1) Replace struct resource's sibling list from singly linked list to
list_head. Clearing out those pointer operation within singly linked
list for better code readability.
2) Based on list_head replacement, add a new function
walk_system_ram_res_rev() which can does reversed iteration on
iomem_resource's siblings.
3) Change kexec_file loading to search system RAM top down for kernel
loadin, using walk_system_ram_res_rev().

Note:
This patchset passed testing on my kvm guest, x86_64 arch with network
enabling. The thing we need pay attetion to is that a root resource's
child member need be initialized specifically with LIST_HEAD_INIT() if
statically defined or INIT_LIST_HEAD() for dynamically definition. Here
Just like we do for iomem_resource/ioport_resource, or the change in
get_pci_domain_busn_res().


Links of the old post (Boris pointed out that we should use
https://lkml.kernel.org/r/Message-ID, while it can't be opened from
my side, so paste all of them here.):
v4:
https://lkml.kernel.org/r/20180507063224.24229-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
https://lkml.org/lkml/2018/5/7/36

v3:
https://lkml.kernel.org/r/20180419001848.3041-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
https://lkml.org/lkml/2018/4/18/767

v2:
https://lkml.kernel.org/r/20180408024724.16812-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
https://lkml.org/lkml/2018/4/7/169

v1:
https://lkml.kernel.org/r/20180322033722.9279-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
https://lkml.org/lkml/2018/3/21/952

Changelog:
v4->v5:
  Add new patch 0001 to move duplicated reparent_resources() to
  kernel/resource.c to make it be shared by different ARCH-es.

  Fix several code bugs reported by test robot on ARCH powerpc and
  microblaze.
v3->v4:
  Fix several bugs test robot reported. Rewrite cover letter and patch
  log according to reviewer's comment.

v2->v3:
  Rename resource functions first_child() and sibling() to
  resource_first_chils() and resource_sibling(). Dan suggested this.

  Move resource_first_chils() and resource_sibling() to linux/ioport.h
  and make them as inline function. Rob suggested this. Accordingly add
  linux/list.h including in linux/ioport.h, please help review if this
  bring efficiency degradation or code redundancy.

  The change on struct resource {} bring two pointers of size increase,
  mention this in git log to make it more specifically, Rob suggested
  this.

v1->v2:
  Use list_head instead to link resource siblings. This is suggested by
  Andrew.

  Rewrite walk_system_ram_res_rev() after list_head is taken to link
  resouce siblings.

Baoquan He (4):
  resource: Move reparent_resources() to kernel/resource.c and make it
    public
  resource: Use list_head to link sibling resource
  resource: add walk_system_ram_res_rev()
  kexec_file: Load kernel at top of system RAM if required

 arch/arm/plat-samsung/pm-check.c            |   6 +-
 arch/microblaze/pci/pci-common.c            |  41 +----
 arch/powerpc/kernel/pci-common.c            |  39 +----
 arch/sparc/kernel/ioport.c                  |   2 +-
 arch/xtensa/include/asm/pci-bridge.h        |   4 +-
 drivers/eisa/eisa-bus.c                     |   2 +
 drivers/gpu/drm/drm_memory.c                |   3 +-
 drivers/gpu/drm/gma500/gtt.c                |   5 +-
 drivers/hv/vmbus_drv.c                      |  52 +++---
 drivers/input/joystick/iforce/iforce-main.c |   4 +-
 drivers/nvdimm/namespace_devs.c             |   6 +-
 drivers/nvdimm/nd.h                         |   5 +-
 drivers/of/address.c                        |   4 +-
 drivers/parisc/lba_pci.c                    |   4 +-
 drivers/pci/host/vmd.c                      |   8 +-
 drivers/pci/probe.c                         |   2 +
 drivers/pci/setup-bus.c                     |   2 +-
 include/linux/ioport.h                      |  21 ++-
 kernel/kexec_file.c                         |   2 +
 kernel/resource.c                           | 259 ++++++++++++++++++----------
 20 files changed, 244 insertions(+), 227 deletions(-)

-- 
2.13.6

From - Thu Nov 08 21:41:33 2018
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Subject: [PATCH v5 1/4] resource: Move reparent_resources() to
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reparent_resources() is duplicated in arch/microblaze/pci/pci-common.c
and arch/powerpc/kernel/pci-common.c, so move it to kernel/resource.c
so that it's shared. Later its code also need be updated using list_head
to replace singly linked list.

Signed-off-by: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Michal Simek <monstr-pSz03upnqPeHXe+LvDLADg@public.gmane.org>
Cc: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Cc: Paul Mackerras <paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>
Cc: Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>
---
v4->v5:
  Fix several code bugs reported by test robot on ARCH powerpc and
  microblaze.

v3->v4:
  Fix several bugs test robot reported. And change patch log.

v2->v3:
  Rename resource functions first_child() and sibling() to
  resource_first_chils() and resource_sibling(). Dan suggested this.

  Move resource_first_chils() and resource_sibling() to linux/ioport.h
  and make them as inline function. Rob suggested this. Accordingly add
  linux/list.h including in linux/ioport.h, please help review if this
  bring efficiency degradation or code redundancy.

  The change on struct resource {} bring two pointers of size increase,
  mention this in git log to make it more specifically, Rob suggested
  this.

 arch/microblaze/pci/pci-common.c | 37 -------------------------------------
 arch/powerpc/kernel/pci-common.c | 35 -----------------------------------
 include/linux/ioport.h           |  1 +
 kernel/resource.c                | 36 ++++++++++++++++++++++++++++++++++++
 4 files changed, 37 insertions(+), 72 deletions(-)

diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index f34346d56095..7899bafab064 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -619,43 +619,6 @@ int pcibios_add_device(struct pci_dev *dev)
 EXPORT_SYMBOL(pcibios_add_device);
 
 /*
- * Reparent resource children of pr that conflict with res
- * under res, and make res replace those children.
- */
-static int __init reparent_resources(struct resource *parent,
-				     struct resource *res)
-{
-	struct resource *p, **pp;
-	struct resource **firstpp = NULL;
-
-	for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
-		if (p->end < res->start)
-			continue;
-		if (res->end < p->start)
-			break;
-		if (p->start < res->start || p->end > res->end)
-			return -1;	/* not completely contained */
-		if (firstpp == NULL)
-			firstpp = pp;
-	}
-	if (firstpp == NULL)
-		return -1;	/* didn't find any conflicting entries? */
-	res->parent = parent;
-	res->child = *firstpp;
-	res->sibling = *pp;
-	*firstpp = res;
-	*pp = NULL;
-	for (p = res->child; p != NULL; p = p->sibling) {
-		p->parent = res;
-		pr_debug("PCI: Reparented %s [%llx..%llx] under %s\n",
-			 p->name,
-			 (unsigned long long)p->start,
-			 (unsigned long long)p->end, res->name);
-	}
-	return 0;
-}
-
-/*
  *  Handle resources of PCI devices.  If the world were perfect, we could
  *  just allocate all the resource regions and do nothing more.  It isn't.
  *  On the other hand, we cannot just re-allocate all devices, as it would
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index fe9733ffffaa..926035bb378d 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1088,41 +1088,6 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
 EXPORT_SYMBOL(pcibios_align_resource);
 
 /*
- * Reparent resource children of pr that conflict with res
- * under res, and make res replace those children.
- */
-static int reparent_resources(struct resource *parent,
-				     struct resource *res)
-{
-	struct resource *p, **pp;
-	struct resource **firstpp = NULL;
-
-	for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
-		if (p->end < res->start)
-			continue;
-		if (res->end < p->start)
-			break;
-		if (p->start < res->start || p->end > res->end)
-			return -1;	/* not completely contained */
-		if (firstpp == NULL)
-			firstpp = pp;
-	}
-	if (firstpp == NULL)
-		return -1;	/* didn't find any conflicting entries? */
-	res->parent = parent;
-	res->child = *firstpp;
-	res->sibling = *pp;
-	*firstpp = res;
-	*pp = NULL;
-	for (p = res->child; p != NULL; p = p->sibling) {
-		p->parent = res;
-		pr_debug("PCI: Reparented %s %pR under %s\n",
-			 p->name, p, res->name);
-	}
-	return 0;
-}
-
-/*
  *  Handle resources of PCI devices.  If the world were perfect, we could
  *  just allocate all the resource regions and do nothing more.  It isn't.
  *  On the other hand, we cannot just re-allocate all devices, as it would
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index da0ebaec25f0..dfdcd0bfe54e 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -192,6 +192,7 @@ extern int allocate_resource(struct resource *root, struct resource *new,
 struct resource *lookup_resource(struct resource *root, resource_size_t start);
 int adjust_resource(struct resource *res, resource_size_t start,
 		    resource_size_t size);
+int reparent_resources(struct resource *parent, struct resource *res);
 resource_size_t resource_alignment(struct resource *res);
 static inline resource_size_t resource_size(const struct resource *res)
 {
diff --git a/kernel/resource.c b/kernel/resource.c
index 30e1bc68503b..5e7c56d5d838 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -983,6 +983,42 @@ int adjust_resource(struct resource *res, resource_size_t start,
 }
 EXPORT_SYMBOL(adjust_resource);
 
+/*
+ * Reparent resource children of pr that conflict with res
+ * under res, and make res replace those children.
+ */
+static int reparent_resources(struct resource *parent,
+				     struct resource *res)
+{
+	struct resource *p, **pp;
+	struct resource **firstpp = NULL;
+
+	for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
+		if (p->end < res->start)
+			continue;
+		if (res->end < p->start)
+			break;
+		if (p->start < res->start || p->end > res->end)
+			return -1;	/* not completely contained */
+		if (firstpp == NULL)
+			firstpp = pp;
+	}
+	if (firstpp == NULL)
+		return -1;	/* didn't find any conflicting entries? */
+	res->parent = parent;
+	res->child = *firstpp;
+	res->sibling = *pp;
+	*firstpp = res;
+	*pp = NULL;
+	for (p = res->child; p != NULL; p = p->sibling) {
+		p->parent = res;
+		pr_debug("PCI: Reparented %s %pR under %s\n",
+			 p->name, p, res->name);
+	}
+	return 0;
+}
+EXPORT_SYMBOL(reparent_resources);
+
 static void __init __reserve_region_with_split(struct resource *root,
 		resource_size_t start, resource_size_t end,
 		const char *name)
-- 
2.13.6

From - Thu Nov 08 21:41:33 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.ports.ppc64.devel
Subject: [PATCH v5 2/4] resource: Use list_head to link sibling resource
Date: Tue, 12 Jun 2018 11:28:29 +0800
Lines: 570
Approved: news@gmane.org
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From - Thu Nov 08 21:41:33 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
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From: Baoquan He <bhe@redhat.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.input,gmane.linux.hardware.nvdimm,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.kexec,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH v5 3/4] resource: add walk_system_ram_res_rev()
Date: Tue, 12 Jun 2018 11:28:30 +0800
Lines: 96
Approved: news@gmane.org
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To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2791957>

This function, being a variant of walk_system_ram_res() introduced in
commit 8c86e70acead ("resource: provide new functions to walk through
resources"), walks through a list of all the resources of System RAM
in reversed order, i.e., from higher to lower.

It will be used in kexec_file code.

Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
---
 include/linux/ioport.h |  3 +++
 kernel/resource.c      | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index b7456ae889dd..066cc263e2cc 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -279,6 +279,9 @@ extern int
 walk_system_ram_res(u64 start, u64 end, void *arg,
 		    int (*func)(struct resource *, void *));
 extern int
+walk_system_ram_res_rev(u64 start, u64 end, void *arg,
+			int (*func)(struct resource *, void *));
+extern int
 walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start, u64 end,
 		    void *arg, int (*func)(struct resource *, void *));
 
diff --git a/kernel/resource.c b/kernel/resource.c
index ef9a20b75234..3128ac938f38 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -23,6 +23,8 @@
 #include <linux/pfn.h>
 #include <linux/mm.h>
 #include <linux/resource_ext.h>
+#include <linux/string.h>
+#include <linux/vmalloc.h>
 #include <asm/io.h>
 
 
@@ -443,6 +445,44 @@ int walk_system_ram_res(u64 start, u64 end, void *arg,
 }
 
 /*
+ * This function, being a variant of walk_system_ram_res(), calls the @func
+ * callback against all memory ranges of type System RAM which are marked as
+ * IORESOURCE_SYSTEM_RAM and IORESOUCE_BUSY in reversed order, i.e., from
+ * higher to lower.
+ */
+int walk_system_ram_res_rev(u64 start, u64 end, void *arg,
+				int (*func)(struct resource *, void *))
+{
+	unsigned long flags;
+	struct resource *res;
+	int ret = -1;
+
+	flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
+
+	read_lock(&resource_lock);
+	list_for_each_entry_reverse(res, &iomem_resource.child, sibling) {
+		if (start >= end)
+			break;
+		if ((res->flags & flags) != flags)
+			continue;
+		if (res->desc != IORES_DESC_NONE)
+			continue;
+		if (res->end < start)
+			break;
+
+		if ((res->end >= start) && (res->start < end)) {
+			ret = (*func)(res, arg);
+			if (ret)
+				break;
+		}
+		end = res->start - 1;
+
+	}
+	read_unlock(&resource_lock);
+	return ret;
+}
+
+/*
  * This function calls the @func callback against all memory ranges, which
  * are ranges marked as IORESOURCE_MEM and IORESOUCE_BUSY.
  */
-- 
2.13.6



From - Thu Nov 08 21:41:33 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.ports.ppc64.devel
Subject: [PATCH v5 4/4] kexec_file: Load kernel at top of system RAM if
 required
Date: Tue, 12 Jun 2018 11:28:31 +0800
Lines: 45
Approved: news@gmane.org
Message-ID: <20180612032831.29747-5-bhe@redhat.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.hardware.nvdimm/10296>

For kexec_file loading, if kexec_buf.top_down is 'true', the memory which
is used to load kernel/initrd/purgatory is supposed to be allocated from
top to down. This is what we have been doing all along in the old kexec
loading interface and the kexec loading is still default setting in some
distributions. However, the current kexec_file loading interface doesn't
do likt this. The function arch_kexec_walk_mem() it calls ignores checking
kexec_buf.top_down, but calls walk_system_ram_res() directly to go through
all resources of System RAM from bottom to up, to try to find memory region
which can contain the specific kexec buffer, then call locate_mem_hole_callback()
to allocate memory in that found memory region from top to down. This brings
confusion especially when KASLR is widely supported , users have to make clear
why kexec/kdump kernel loading position is different between these two
interfaces in order to exclude unnecessary noises. Hence these two interfaces
need be unified on behaviour.

Here add checking if kexec_buf.top_down is 'true' in arch_kexec_walk_mem(),
if yes, call the newly added walk_system_ram_res_rev() to find memory region
from top to down to load kernel.

Signed-off-by: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Eric Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
Cc: Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Dave Young <dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Cc: Yinghai Lu <yinghai-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
---
 kernel/kexec_file.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 75d8e7cf040e..7a66d9d5a534 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -518,6 +518,8 @@ int __weak arch_kexec_walk_mem(struct kexec_buf *kbuf,
 					   IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY,
 					   crashk_res.start, crashk_res.end,
 					   kbuf, func);
+	else if (kbuf->top_down)
+		return walk_system_ram_res_rev(0, ULONG_MAX, kbuf, func);
 	else
 		return walk_system_ram_res(0, ULONG_MAX, kbuf, func);
 }
-- 
2.13.6

From - Thu Nov 08 21:41:34 2018
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X-Mozilla-Keys:                                                                                 
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From: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v5 1/4] resource: Move reparent_resources() to
 kernel/resource.c and make it public
Date: Tue, 12 Jun 2018 11:34:43 +0800
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On 06/12/18 at 11:28am, Baoquan He wrote:
> reparent_resources() is duplicated in arch/microblaze/pci/pci-common.c
> and arch/powerpc/kernel/pci-common.c, so move it to kernel/resource.c
> so that it's shared. Later its code also need be updated using list_head
> to replace singly linked list.
> 
> Signed-off-by: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Cc: Michal Simek <monstr-pSz03upnqPeHXe+LvDLADg@public.gmane.org>
> Cc: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
> Cc: Paul Mackerras <paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>
> Cc: Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>
> ---
> v4->v5:
>   Fix several code bugs reported by test robot on ARCH powerpc and
>   microblaze.

Oops, I mistakenly added the patch change log of the current patch 0002
here. This patch is a newly added one.

> 
> v3->v4:
>   Fix several bugs test robot reported. And change patch log.
> 
> v2->v3:
>   Rename resource functions first_child() and sibling() to
>   resource_first_chils() and resource_sibling(). Dan suggested this.
> 
>   Move resource_first_chils() and resource_sibling() to linux/ioport.h
>   and make them as inline function. Rob suggested this. Accordingly add
>   linux/list.h including in linux/ioport.h, please help review if this
>   bring efficiency degradation or code redundancy.
> 
>   The change on struct resource {} bring two pointers of size increase,
>   mention this in git log to make it more specifically, Rob suggested
>   this.
> 
>  arch/microblaze/pci/pci-common.c | 37 -------------------------------------
>  arch/powerpc/kernel/pci-common.c | 35 -----------------------------------
>  include/linux/ioport.h           |  1 +
>  kernel/resource.c                | 36 ++++++++++++++++++++++++++++++++++++
>  4 files changed, 37 insertions(+), 72 deletions(-)
> 
> diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
> index f34346d56095..7899bafab064 100644
> --- a/arch/microblaze/pci/pci-common.c
> +++ b/arch/microblaze/pci/pci-common.c
> @@ -619,43 +619,6 @@ int pcibios_add_device(struct pci_dev *dev)
>  EXPORT_SYMBOL(pcibios_add_device);
>  
>  /*
> - * Reparent resource children of pr that conflict with res
> - * under res, and make res replace those children.
> - */
> -static int __init reparent_resources(struct resource *parent,
> -				     struct resource *res)
> -{
> -	struct resource *p, **pp;
> -	struct resource **firstpp = NULL;
> -
> -	for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
> -		if (p->end < res->start)
> -			continue;
> -		if (res->end < p->start)
> -			break;
> -		if (p->start < res->start || p->end > res->end)
> -			return -1;	/* not completely contained */
> -		if (firstpp == NULL)
> -			firstpp = pp;
> -	}
> -	if (firstpp == NULL)
> -		return -1;	/* didn't find any conflicting entries? */
> -	res->parent = parent;
> -	res->child = *firstpp;
> -	res->sibling = *pp;
> -	*firstpp = res;
> -	*pp = NULL;
> -	for (p = res->child; p != NULL; p = p->sibling) {
> -		p->parent = res;
> -		pr_debug("PCI: Reparented %s [%llx..%llx] under %s\n",
> -			 p->name,
> -			 (unsigned long long)p->start,
> -			 (unsigned long long)p->end, res->name);
> -	}
> -	return 0;
> -}
> -
> -/*
>   *  Handle resources of PCI devices.  If the world were perfect, we could
>   *  just allocate all the resource regions and do nothing more.  It isn't.
>   *  On the other hand, we cannot just re-allocate all devices, as it would
> diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
> index fe9733ffffaa..926035bb378d 100644
> --- a/arch/powerpc/kernel/pci-common.c
> +++ b/arch/powerpc/kernel/pci-common.c
> @@ -1088,41 +1088,6 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
>  EXPORT_SYMBOL(pcibios_align_resource);
>  
>  /*
> - * Reparent resource children of pr that conflict with res
> - * under res, and make res replace those children.
> - */
> -static int reparent_resources(struct resource *parent,
> -				     struct resource *res)
> -{
> -	struct resource *p, **pp;
> -	struct resource **firstpp = NULL;
> -
> -	for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
> -		if (p->end < res->start)
> -			continue;
> -		if (res->end < p->start)
> -			break;
> -		if (p->start < res->start || p->end > res->end)
> -			return -1;	/* not completely contained */
> -		if (firstpp == NULL)
> -			firstpp = pp;
> -	}
> -	if (firstpp == NULL)
> -		return -1;	/* didn't find any conflicting entries? */
> -	res->parent = parent;
> -	res->child = *firstpp;
> -	res->sibling = *pp;
> -	*firstpp = res;
> -	*pp = NULL;
> -	for (p = res->child; p != NULL; p = p->sibling) {
> -		p->parent = res;
> -		pr_debug("PCI: Reparented %s %pR under %s\n",
> -			 p->name, p, res->name);
> -	}
> -	return 0;
> -}
> -
> -/*
>   *  Handle resources of PCI devices.  If the world were perfect, we could
>   *  just allocate all the resource regions and do nothing more.  It isn't.
>   *  On the other hand, we cannot just re-allocate all devices, as it would
> diff --git a/include/linux/ioport.h b/include/linux/ioport.h
> index da0ebaec25f0..dfdcd0bfe54e 100644
> --- a/include/linux/ioport.h
> +++ b/include/linux/ioport.h
> @@ -192,6 +192,7 @@ extern int allocate_resource(struct resource *root, struct resource *new,
>  struct resource *lookup_resource(struct resource *root, resource_size_t start);
>  int adjust_resource(struct resource *res, resource_size_t start,
>  		    resource_size_t size);
> +int reparent_resources(struct resource *parent, struct resource *res);
>  resource_size_t resource_alignment(struct resource *res);
>  static inline resource_size_t resource_size(const struct resource *res)
>  {
> diff --git a/kernel/resource.c b/kernel/resource.c
> index 30e1bc68503b..5e7c56d5d838 100644
> --- a/kernel/resource.c
> +++ b/kernel/resource.c
> @@ -983,6 +983,42 @@ int adjust_resource(struct resource *res, resource_size_t start,
>  }
>  EXPORT_SYMBOL(adjust_resource);
>  
> +/*
> + * Reparent resource children of pr that conflict with res
> + * under res, and make res replace those children.
> + */
> +static int reparent_resources(struct resource *parent,
> +				     struct resource *res)
> +{
> +	struct resource *p, **pp;
> +	struct resource **firstpp = NULL;
> +
> +	for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
> +		if (p->end < res->start)
> +			continue;
> +		if (res->end < p->start)
> +			break;
> +		if (p->start < res->start || p->end > res->end)
> +			return -1;	/* not completely contained */
> +		if (firstpp == NULL)
> +			firstpp = pp;
> +	}
> +	if (firstpp == NULL)
> +		return -1;	/* didn't find any conflicting entries? */
> +	res->parent = parent;
> +	res->child = *firstpp;
> +	res->sibling = *pp;
> +	*firstpp = res;
> +	*pp = NULL;
> +	for (p = res->child; p != NULL; p = p->sibling) {
> +		p->parent = res;
> +		pr_debug("PCI: Reparented %s %pR under %s\n",
> +			 p->name, p, res->name);
> +	}
> +	return 0;
> +}
> +EXPORT_SYMBOL(reparent_resources);
> +
>  static void __init __reserve_region_with_split(struct resource *root,
>  		resource_size_t start, resource_size_t end,
>  		const char *name)
> -- 
> 2.13.6
> 

From - Thu Nov 08 21:41:34 2018
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Subject: Re: [PATCH v5 1/4] resource: Move reparent_resources() to
 kernel/resource.c and make it public
Date: Tue, 12 Jun 2018 11:55:46 +0800
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To: Baoquan He <bhe@redhat.com>
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--7JfCtLOvnd9MIVvH
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Hi Baoquan,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.17 next-20180608]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180612-113600
config: i386-tinyconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

Note: the linux-review/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180612-113600 HEAD 5545e79eef6387857faf41cdffa7be6b1f5d4efe builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

>> kernel/resource.c:990:12: error: static declaration of 'reparent_resources' follows non-static declaration
    static int reparent_resources(struct resource *parent,
               ^~~~~~~~~~~~~~~~~~
   In file included from kernel/resource.c:14:0:
   include/linux/ioport.h:195:5: note: previous declaration of 'reparent_resources' was here
    int reparent_resources(struct resource *parent, struct resource *res);
        ^~~~~~~~~~~~~~~~~~
   kernel/resource.c:990:12: warning: 'reparent_resources' defined but not used [-Wunused-function]
    static int reparent_resources(struct resource *parent,
               ^~~~~~~~~~~~~~~~~~

vim +/reparent_resources +990 kernel/resource.c

   985	
   986	/*
   987	 * Reparent resource children of pr that conflict with res
   988	 * under res, and make res replace those children.
   989	 */
 > 990	static int reparent_resources(struct resource *parent,
   991					     struct resource *res)
   992	{
   993		struct resource *p, **pp;
   994		struct resource **firstpp = NULL;
   995	
   996		for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
   997			if (p->end < res->start)
   998				continue;
   999			if (res->end < p->start)
  1000				break;
  1001			if (p->start < res->start || p->end > res->end)
  1002				return -1;	/* not completely contained */
  1003			if (firstpp == NULL)
  1004				firstpp = pp;
  1005		}
  1006		if (firstpp == NULL)
  1007			return -1;	/* didn't find any conflicting entries? */
  1008		res->parent = parent;
  1009		res->child = *firstpp;
  1010		res->sibling = *pp;
  1011		*firstpp = res;
  1012		*pp = NULL;
  1013		for (p = res->child; p != NULL; p = p->sibling) {
  1014			p->parent = res;
  1015			pr_debug("PCI: Reparented %s %pR under %s\n",
  1016				 p->name, p, res->name);
  1017		}
  1018		return 0;
  1019	}
  1020	EXPORT_SYMBOL(reparent_resources);
  1021	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From - Thu Nov 08 21:41:34 2018
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To: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.hardware.nvdimm/10300>

Hi Baoquan,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.17 next-20180608]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180612-113600
config: i386-tinyconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   kernel/resource.c: In function 'reparent_resources':
>> kernel/resource.c:1005:26: error: passing argument 2 of 'list_add' from incompatible pointer type [-Werror=incompatible-pointer-types]
     list_add(&res->sibling, &p->sibling.prev);
                             ^
   In file included from include/linux/ioport.h:15:0,
                    from kernel/resource.c:14:
   include/linux/list.h:77:20: note: expected 'struct list_head *' but argument is of type 'struct list_head **'
    static inline void list_add(struct list_head *new, struct list_head *head)
                       ^~~~~~~~
   In file included from include/linux/list.h:9:0,
                    from include/linux/ioport.h:15,
                    from kernel/resource.c:14:
>> kernel/resource.c:1013:26: error: 'new' undeclared (first use in this function); did you mean 'net'?
     list_for_each_entry(p, &new->child, sibling) {
                             ^
   include/linux/kernel.h:963:26: note: in definition of macro 'container_of'
     void *__mptr = (void *)(ptr);     \
                             ^~~
   include/linux/list.h:377:2: note: in expansion of macro 'list_entry'
     list_entry((ptr)->next, type, member)
     ^~~~~~~~~~
   include/linux/list.h:464:13: note: in expansion of macro 'list_first_entry'
     for (pos = list_first_entry(head, typeof(*pos), member); \
                ^~~~~~~~~~~~~~~~
   kernel/resource.c:1013:2: note: in expansion of macro 'list_for_each_entry'
     list_for_each_entry(p, &new->child, sibling) {
     ^~~~~~~~~~~~~~~~~~~
   kernel/resource.c:1013:26: note: each undeclared identifier is reported only once for each function it appears in
     list_for_each_entry(p, &new->child, sibling) {
                             ^
   include/linux/kernel.h:963:26: note: in definition of macro 'container_of'
     void *__mptr = (void *)(ptr);     \
                             ^~~
   include/linux/list.h:377:2: note: in expansion of macro 'list_entry'
     list_entry((ptr)->next, type, member)
     ^~~~~~~~~~
   include/linux/list.h:464:13: note: in expansion of macro 'list_first_entry'
     for (pos = list_first_entry(head, typeof(*pos), member); \
                ^~~~~~~~~~~~~~~~
   kernel/resource.c:1013:2: note: in expansion of macro 'list_for_each_entry'
     list_for_each_entry(p, &new->child, sibling) {
     ^~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/list_add +1005 kernel/resource.c

   983	
   984	/*
   985	 * Reparent resource children of pr that conflict with res
   986	 * under res, and make res replace those children.
   987	 */
   988	int reparent_resources(struct resource *parent, struct resource *res)
   989	{
   990		struct resource *p, *first = NULL;
   991	
   992		list_for_each_entry(p, &parent->child, sibling) {
   993			if (p->end < res->start)
   994				continue;
   995			if (res->end < p->start)
   996				break;
   997			if (p->start < res->start || p->end > res->end)
   998				return -1;	/* not completely contained */
   999			if (first == NULL)
  1000				first = p;
  1001		}
  1002		if (first == NULL)
  1003			return -1;	/* didn't find any conflicting entries? */
  1004		res->parent = parent;
> 1005		list_add(&res->sibling, &p->sibling.prev);
  1006		INIT_LIST_HEAD(&res->child);
  1007	
  1008		/*
  1009		 * From first to p's previous sibling, they all fall into
  1010		 * res's region, change them as res's children.
  1011		 */
  1012		list_cut_position(&res->child, first->sibling.prev, res->sibling.prev);
> 1013		list_for_each_entry(p, &new->child, sibling) {
  1014	                p->parent = new;
  1015			pr_debug("PCI: Reparented %s %pR under %s\n",
  1016				 p->name, p, res->name);
  1017		}
  1018		return 0;
  1019	}
  1020	EXPORT_SYMBOL(reparent_resources);
  1021	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Subject: Re: [PATCH v5 2/4] resource: Use list_head to link sibling resource
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To: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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Hi Baoquan,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v4.17 next-20180608]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180612-113600
config: x86_64-randconfig-x011-201823 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   kernel/resource.c: In function 'reparent_resources':
   kernel/resource.c:1005:26: error: passing argument 2 of 'list_add' from incompatible pointer type [-Werror=incompatible-pointer-types]
     list_add(&res->sibling, &p->sibling.prev);
                             ^
   In file included from include/linux/ioport.h:15:0,
                    from kernel/resource.c:14:
   include/linux/list.h:77:20: note: expected 'struct list_head *' but argument is of type 'struct list_head **'
    static inline void list_add(struct list_head *new, struct list_head *head)
                       ^~~~~~~~
   In file included from include/linux/list.h:9:0,
                    from include/linux/ioport.h:15,
                    from kernel/resource.c:14:
   kernel/resource.c:1013:26: error: 'new' undeclared (first use in this function); did you mean 'net'?
     list_for_each_entry(p, &new->child, sibling) {
                             ^
   include/linux/kernel.h:963:26: note: in definition of macro 'container_of'
     void *__mptr = (void *)(ptr);     \
                             ^~~
   include/linux/list.h:377:2: note: in expansion of macro 'list_entry'
     list_entry((ptr)->next, type, member)
     ^~~~~~~~~~
   include/linux/list.h:464:13: note: in expansion of macro 'list_first_entry'
     for (pos = list_first_entry(head, typeof(*pos), member); \
                ^~~~~~~~~~~~~~~~
>> kernel/resource.c:1013:2: note: in expansion of macro 'list_for_each_entry'
     list_for_each_entry(p, &new->child, sibling) {
     ^~~~~~~~~~~~~~~~~~~
   kernel/resource.c:1013:26: note: each undeclared identifier is reported only once for each function it appears in
     list_for_each_entry(p, &new->child, sibling) {
                             ^
   include/linux/kernel.h:963:26: note: in definition of macro 'container_of'
     void *__mptr = (void *)(ptr);     \
                             ^~~
   include/linux/list.h:377:2: note: in expansion of macro 'list_entry'
     list_entry((ptr)->next, type, member)
     ^~~~~~~~~~
   include/linux/list.h:464:13: note: in expansion of macro 'list_first_entry'
     for (pos = list_first_entry(head, typeof(*pos), member); \
                ^~~~~~~~~~~~~~~~
>> kernel/resource.c:1013:2: note: in expansion of macro 'list_for_each_entry'
     list_for_each_entry(p, &new->child, sibling) {
     ^~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/list_for_each_entry +1013 kernel/resource.c

   983	
   984	/*
   985	 * Reparent resource children of pr that conflict with res
   986	 * under res, and make res replace those children.
   987	 */
   988	int reparent_resources(struct resource *parent, struct resource *res)
   989	{
   990		struct resource *p, *first = NULL;
   991	
   992		list_for_each_entry(p, &parent->child, sibling) {
   993			if (p->end < res->start)
   994				continue;
   995			if (res->end < p->start)
   996				break;
   997			if (p->start < res->start || p->end > res->end)
   998				return -1;	/* not completely contained */
   999			if (first == NULL)
  1000				first = p;
  1001		}
  1002		if (first == NULL)
  1003			return -1;	/* didn't find any conflicting entries? */
  1004		res->parent = parent;
  1005		list_add(&res->sibling, &p->sibling.prev);
  1006		INIT_LIST_HEAD(&res->child);
  1007	
  1008		/*
  1009		 * From first to p's previous sibling, they all fall into
  1010		 * res's region, change them as res's children.
  1011		 */
  1012		list_cut_position(&res->child, first->sibling.prev, res->sibling.prev);
> 1013		list_for_each_entry(p, &new->child, sibling) {
  1014	                p->parent = new;
  1015			pr_debug("PCI: Reparented %s %pR under %s\n",
  1016				 p->name, p, res->name);
  1017		}
  1018		return 0;
  1019	}
  1020	EXPORT_SYMBOL(reparent_resources);
  1021	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v5 1/4] resource: Move reparent_resources() to
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On Tue, Jun 12, 2018 at 6:28 AM, Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> reparent_resources() is duplicated in arch/microblaze/pci/pci-common.c
> and arch/powerpc/kernel/pci-common.c, so move it to kernel/resource.c
> so that it's shared. Later its code also need be updated using list_head
> to replace singly linked list.

While this is a good deduplication of the code, some requirements for
public functions would be good to satisfy.

> +/*
> + * Reparent resource children of pr that conflict with res
> + * under res, and make res replace those children.
> + */

kernel doc format, though...

> +static int reparent_resources(struct resource *parent,
> +                                    struct resource *res)

...is it really public with static keyword?!



> +{

> +       for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
> +               if (p->end < res->start)
> +                       continue;
> +               if (res->end < p->start)
> +                       break;

> +               if (p->start < res->start || p->end > res->end)
> +                       return -1;      /* not completely contained */

Usually we are expecting real eeror codes.

> +               if (firstpp == NULL)
> +                       firstpp = pp;
> +       }

> +       if (firstpp == NULL)
> +               return -1;      /* didn't find any conflicting entries? */

Ditto.

> +}
> +EXPORT_SYMBOL(reparent_resources);

-- 
With Best Regards,
Andy Shevchenko

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Subject: Re: [PATCH v5 1/4] resource: Move reparent_resources() to
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On 06/12/18 at 11:29am, Andy Shevchenko wrote:
> On Tue, Jun 12, 2018 at 6:28 AM, Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> > reparent_resources() is duplicated in arch/microblaze/pci/pci-common.c
> > and arch/powerpc/kernel/pci-common.c, so move it to kernel/resource.c
> > so that it's shared. Later its code also need be updated using list_head
> > to replace singly linked list.
> 
> While this is a good deduplication of the code, some requirements for
> public functions would be good to satisfy.
> 
> > +/*
> > + * Reparent resource children of pr that conflict with res
> > + * under res, and make res replace those children.
> > + */
> 
> kernel doc format, though...

> 
> > +static int reparent_resources(struct resource *parent,
> > +                                    struct resource *res)
> 
> ...is it really public with static keyword?!

Thanks for looking into this. This is a code bug, I copied and changed,
but forgot merging the changing to local commit. And the error reported
by test robot in patch 2 was changed too locally, forgot merging it to
patch. Will repost to address this.

> 
> 
> 
> > +{
> 
> > +       for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
> > +               if (p->end < res->start)
> > +                       continue;
> > +               if (res->end < p->start)
> > +                       break;
> 
> > +               if (p->start < res->start || p->end > res->end)
> > +                       return -1;      /* not completely contained */
> 
> Usually we are expecting real eeror codes.

Hmm, I just copied it from arch/powerpc/kernel/pci-common.c. The
function interface expects an integer returned value, not sure what a
real error codes look like, could you give more hints? Will change
accordingly.

> 
> > +               if (firstpp == NULL)
> > +                       firstpp = pp;
> > +       }
> 
> > +       if (firstpp == NULL)
> > +               return -1;      /* didn't find any conflicting entries? */
> 
> Ditto.
> 
> > +}
> > +EXPORT_SYMBOL(reparent_resources);
> 
> -- 
> With Best Regards,
> Andy Shevchenko

From - Thu Nov 08 21:41:34 2018
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Subject: Re: [PATCH v5 1/4] resource: Move reparent_resources() to
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On 06/12/18 at 11:29am, Andy Shevchenko wrote:
> On Tue, Jun 12, 2018 at 6:28 AM, Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> > reparent_resources() is duplicated in arch/microblaze/pci/pci-common.c
> > and arch/powerpc/kernel/pci-common.c, so move it to kernel/resource.c
> > so that it's shared. Later its code also need be updated using list_head
> > to replace singly linked list.
> 
> While this is a good deduplication of the code, some requirements for
> public functions would be good to satisfy.
> 
> > +/*
> > + * Reparent resource children of pr that conflict with res
> > + * under res, and make res replace those children.
> > + */
> 
> kernel doc format, though...

Will rewrite it, thanks.

> 
> > +static int reparent_resources(struct resource *parent,
> > +                                    struct resource *res)
> 
> ...is it really public with static keyword?!
> 
> 
> 
> > +{
> 
> > +       for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
> > +               if (p->end < res->start)
> > +                       continue;
> > +               if (res->end < p->start)
> > +                       break;
> 
> > +               if (p->start < res->start || p->end > res->end)
> > +                       return -1;      /* not completely contained */
> 
> Usually we are expecting real eeror codes.
> 
> > +               if (firstpp == NULL)
> > +                       firstpp = pp;
> > +       }
> 
> > +       if (firstpp == NULL)
> > +               return -1;      /* didn't find any conflicting entries? */
> 
> Ditto.
> 
> > +}
> > +EXPORT_SYMBOL(reparent_resources);
> 
> -- 
> With Best Regards,
> Andy Shevchenko

From - Thu Nov 08 21:41:34 2018
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Subject: Re: [PATCH v5 1/4] resource: Move reparent_resources() to
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On Tue, Jun 12, 2018 at 12:38 PM, Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> On 06/12/18 at 11:29am, Andy Shevchenko wrote:
>> On Tue, Jun 12, 2018 at 6:28 AM, Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:

>> > +{
>>
>> > +       for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
>> > +               if (p->end < res->start)
>> > +                       continue;
>> > +               if (res->end < p->start)
>> > +                       break;
>>
>> > +               if (p->start < res->start || p->end > res->end)
>> > +                       return -1;      /* not completely contained */
>>
>> Usually we are expecting real eeror codes.
>
> Hmm, I just copied it from arch/powerpc/kernel/pci-common.c. The
> function interface expects an integer returned value, not sure what a
> real error codes look like, could you give more hints? Will change
> accordingly.

I briefly looked at the code and error codes we have, so, my proposal
is one of the following
 - use -ECANCELED (not the best choice for first occurrence here,
though I can't find better)
 - use positive integers (or enum), like
  #define RES_REPARENTED 0
  #define RES_OVERLAPPED 1
  #define RES_NOCONFLICT 2


>> > +               if (firstpp == NULL)
>> > +                       firstpp = pp;
>> > +       }
>>
>> > +       if (firstpp == NULL)
>> > +               return -1;      /* didn't find any conflicting entries? */
>>
>> Ditto.

Ditto.

>>
>> > +}
>> > +EXPORT_SYMBOL(reparent_resources);

-- 
With Best Regards,
Andy Shevchenko

From - Thu Nov 08 21:41:34 2018
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Subject: Re: [PATCH v5 1/4] resource: Move reparent_resources() to
 kernel/resource.c and make it public
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On Tue, Jun 12, 2018 at 5:20 PM, Andy Shevchenko
<andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On Tue, Jun 12, 2018 at 12:38 PM, Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
>> On 06/12/18 at 11:29am, Andy Shevchenko wrote:
>>> On Tue, Jun 12, 2018 at 6:28 AM, Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
>
>>> > +{
>>>
>>> > +       for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
>>> > +               if (p->end < res->start)
>>> > +                       continue;
>>> > +               if (res->end < p->start)
>>> > +                       break;
>>>
>>> > +               if (p->start < res->start || p->end > res->end)
>>> > +                       return -1;      /* not completely contained */
>>>
>>> Usually we are expecting real eeror codes.
>>
>> Hmm, I just copied it from arch/powerpc/kernel/pci-common.c. The
>> function interface expects an integer returned value, not sure what a
>> real error codes look like, could you give more hints? Will change
>> accordingly.
>
> I briefly looked at the code and error codes we have, so, my proposal
> is one of the following

>  - use -ECANCELED (not the best choice for first occurrence here,
> though I can't find better)

Actually -ENOTSUPP might suit the first case (although the actual
would be something like -EOVERLAP, which we don't have)

>  - use positive integers (or enum), like
>   #define RES_REPARENTED 0
>   #define RES_OVERLAPPED 1
>   #define RES_NOCONFLICT 2
>
>
>>> > +               if (firstpp == NULL)
>>> > +                       firstpp = pp;
>>> > +       }
>>>
>>> > +       if (firstpp == NULL)
>>> > +               return -1;      /* didn't find any conflicting entries? */
>>>
>>> Ditto.
>
> Ditto.
>
>>>
>>> > +}
>>> > +EXPORT_SYMBOL(reparent_resources);
>
> --
> With Best Regards,
> Andy Shevchenko



-- 
With Best Regards,
Andy Shevchenko

From - Thu Nov 08 21:41:34 2018
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Archived-At: <http://permalink.gmane.org/gmane.linux.hardware.nvdimm/10311>

This looks wrong.  After a list iterator, the index variable points to a
dummy structure.

julia

url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180612-113600
:::::: branch date: 7 hours ago
:::::: commit date: 7 hours ago

>> kernel/resource.c:265:17-20: ERROR: invalid reference to the index variable of the iterator on line 253

# https://github.com/0day-ci/linux/commit/e906f15906750a86913ba2b1f08bad99129d3dfc
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout e906f15906750a86913ba2b1f08bad99129d3dfc
vim +265 kernel/resource.c

^1da177e4 Linus Torvalds 2005-04-16  247
5eeec0ec9 Yinghai Lu     2009-12-22  248  static void __release_child_resources(struct resource *r)
5eeec0ec9 Yinghai Lu     2009-12-22  249  {
e906f1590 Baoquan He     2018-06-12  250  	struct resource *tmp, *next;
5eeec0ec9 Yinghai Lu     2009-12-22  251  	resource_size_t size;
5eeec0ec9 Yinghai Lu     2009-12-22  252
e906f1590 Baoquan He     2018-06-12 @253  	list_for_each_entry_safe(tmp, next, &r->child, sibling) {
5eeec0ec9 Yinghai Lu     2009-12-22  254  		tmp->parent = NULL;
e906f1590 Baoquan He     2018-06-12  255  		INIT_LIST_HEAD(&tmp->sibling);
5eeec0ec9 Yinghai Lu     2009-12-22  256  		__release_child_resources(tmp);
5eeec0ec9 Yinghai Lu     2009-12-22  257
5eeec0ec9 Yinghai Lu     2009-12-22  258  		printk(KERN_DEBUG "release child resource %pR\n", tmp);
5eeec0ec9 Yinghai Lu     2009-12-22  259  		/* need to restore size, and keep flags */
5eeec0ec9 Yinghai Lu     2009-12-22  260  		size = resource_size(tmp);
5eeec0ec9 Yinghai Lu     2009-12-22  261  		tmp->start = 0;
5eeec0ec9 Yinghai Lu     2009-12-22  262  		tmp->end = size - 1;
5eeec0ec9 Yinghai Lu     2009-12-22  263  	}
e906f1590 Baoquan He     2018-06-12  264
e906f1590 Baoquan He     2018-06-12 @265  	INIT_LIST_HEAD(&tmp->child);
5eeec0ec9 Yinghai Lu     2009-12-22  266  }
5eeec0ec9 Yinghai Lu     2009-12-22  267

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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To: Julia Lawall <julia.lawall-L2FTfq7BK8M@public.gmane.org>
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On 06/12/18 at 05:10pm, Julia Lawall wrote:
> This looks wrong.  After a list iterator, the index variable points to a
> dummy structure.
> 
> julia
> 
> url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180612-113600
> :::::: branch date: 7 hours ago
> :::::: commit date: 7 hours ago
> 
> >> kernel/resource.c:265:17-20: ERROR: invalid reference to the index variable of the iterator on line 253
> 
> # https://github.com/0day-ci/linux/commit/e906f15906750a86913ba2b1f08bad99129d3dfc
> git remote add linux-review https://github.com/0day-ci/linux
> git remote update linux-review
> git checkout e906f15906750a86913ba2b1f08bad99129d3dfc
> vim +265 kernel/resource.c
> 
> ^1da177e4 Linus Torvalds 2005-04-16  247
> 5eeec0ec9 Yinghai Lu     2009-12-22  248  static void __release_child_resources(struct resource *r)
> 5eeec0ec9 Yinghai Lu     2009-12-22  249  {
> e906f1590 Baoquan He     2018-06-12  250  	struct resource *tmp, *next;
> 5eeec0ec9 Yinghai Lu     2009-12-22  251  	resource_size_t size;
> 5eeec0ec9 Yinghai Lu     2009-12-22  252
> e906f1590 Baoquan He     2018-06-12 @253  	list_for_each_entry_safe(tmp, next, &r->child, sibling) {
> 5eeec0ec9 Yinghai Lu     2009-12-22  254  		tmp->parent = NULL;
> e906f1590 Baoquan He     2018-06-12  255  		INIT_LIST_HEAD(&tmp->sibling);

							list_del_init(&tmp->sibling);

Thanks, Julia. Here I should use list_del_init(&op->list) to
replace INIT_LIST_HEAD(&tmp->sibling). 

> 5eeec0ec9 Yinghai Lu     2009-12-22  256  		__release_child_resources(tmp);
> 5eeec0ec9 Yinghai Lu     2009-12-22  257
> 5eeec0ec9 Yinghai Lu     2009-12-22  258  		printk(KERN_DEBUG "release child resource %pR\n", tmp);
> 5eeec0ec9 Yinghai Lu     2009-12-22  259  		/* need to restore size, and keep flags */
> 5eeec0ec9 Yinghai Lu     2009-12-22  260  		size = resource_size(tmp);
> 5eeec0ec9 Yinghai Lu     2009-12-22  261  		tmp->start = 0;
> 5eeec0ec9 Yinghai Lu     2009-12-22  262  		tmp->end = size - 1;
> 5eeec0ec9 Yinghai Lu     2009-12-22  263  	}
> e906f1590 Baoquan He     2018-06-12  264
> e906f1590 Baoquan He     2018-06-12 @265  	INIT_LIST_HEAD(&tmp->child);
> 5eeec0ec9 Yinghai Lu     2009-12-22  266  }
> 5eeec0ec9 Yinghai Lu     2009-12-22  267
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Xref: news.gmane.org gmane.linux.kernel:2794598 gmane.linux.documentation:56631 gmane.linux.ports.arm.kernel:656391 gmane.linux.ports.parisc:28693 gmane.linux.ports.sh.devel:57103 gmane.linux.ports.sparc:27997
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2794598>

Changeset 9919cba7ff71 ("watchdog: Update documentation") updated
the documentation, removing the old nmi_watchdog.txt and adding
a file with a new content.

Update Kconfig files accordingly.

Fixes: 9919cba7ff71 ("watchdog: Update documentation")

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---
 arch/arm/Kconfig    | 2 +-
 arch/parisc/Kconfig | 2 +-
 arch/sh/Kconfig     | 2 +-
 arch/sparc/Kconfig  | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2a78bdef9a24..fc3330807b09 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1301,7 +1301,7 @@ config SMP
 	  will run faster if you say N here.
 
 	  See also <file:Documentation/x86/i386/IO-APIC.txt>,
-	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
+	  <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO available at
 	  <http://tldp.org/HOWTO/SMP-HOWTO.html>.
 
 	  If you don't know what to do here, say N.
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 4d8f64d48597..c480770fabcd 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -275,7 +275,7 @@ config SMP
 	  machines, but will use only one CPU of a multiprocessor machine.
 	  On a uniprocessor machine, the kernel will run faster if you say N.
 
-	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
 	  available at <http://www.tldp.org/docs.html#howto>.
 
 	  If you don't know what to do here, say N.
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 4d61a085982b..ac1829353139 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -687,7 +687,7 @@ config SMP
 	  People using multiprocessor machines who say Y here should also say
 	  Y to "Enhanced Real Time Clock Support", below.
 
-	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
 	  available at <http://www.tldp.org/docs.html#howto>.
 
 	  If you don't know what to do here, say N.
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 9a2b8877f174..0f535debf802 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -178,7 +178,7 @@ config SMP
 	  Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
 	  Management" code will be disabled if you say Y here.
 
-	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
 	  available at <http://www.tldp.org/docs.html#howto>.
 
 	  If you don't know what to do here, say N.
-- 
2.17.1



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From: Souptick Joarder <jrdr.linux@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.riscv,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.uml.devel,gmane.linux.uml.user,gmane.linux.kernel.iommu,gmane.linux.kernel.mm
Subject: [PATCH] mm: convert return type of handle_mm_fault() caller to
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2794694>

Use new return type vm_fault_t for fault handler. For
now, this is just documenting that the function returns
a VM_FAULT value rather than an errno. Once all instances
are converted, vm_fault_t will become a distinct type.

Ref-> commit 1c8f422059ae ("mm: change return type to vm_fault_t")

In this patch all the caller of handle_mm_fault()
are changed to return vm_fault_t type.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
---
 arch/alpha/mm/fault.c         |  3 ++-
 arch/arc/mm/fault.c           |  4 +++-
 arch/arm/mm/fault.c           |  7 ++++---
 arch/arm64/mm/fault.c         |  6 +++---
 arch/hexagon/mm/vm_fault.c    |  2 +-
 arch/ia64/mm/fault.c          |  2 +-
 arch/m68k/mm/fault.c          |  4 ++--
 arch/microblaze/mm/fault.c    |  2 +-
 arch/mips/mm/fault.c          |  2 +-
 arch/nds32/mm/fault.c         |  2 +-
 arch/nios2/mm/fault.c         |  2 +-
 arch/openrisc/mm/fault.c      |  2 +-
 arch/parisc/mm/fault.c        |  2 +-
 arch/powerpc/mm/copro_fault.c |  2 +-
 arch/powerpc/mm/fault.c       |  7 ++++---
 arch/riscv/mm/fault.c         |  3 ++-
 arch/s390/mm/fault.c          | 13 ++++++++-----
 arch/sh/mm/fault.c            |  4 ++--
 arch/sparc/mm/fault_32.c      |  3 ++-
 arch/sparc/mm/fault_64.c      |  3 ++-
 arch/um/kernel/trap.c         |  2 +-
 arch/unicore32/mm/fault.c     |  9 +++++----
 arch/x86/mm/fault.c           |  5 +++--
 arch/xtensa/mm/fault.c        |  2 +-
 drivers/iommu/amd_iommu_v2.c  |  2 +-
 drivers/iommu/intel-svm.c     |  4 +++-
 mm/hmm.c                      |  8 ++++----
 mm/ksm.c                      |  2 +-
 28 files changed, 62 insertions(+), 47 deletions(-)

diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index cd3c572..2a979ee 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -87,7 +87,8 @@
 	struct vm_area_struct * vma;
 	struct mm_struct *mm = current->mm;
 	const struct exception_table_entry *fixup;
-	int fault, si_code = SEGV_MAPERR;
+	int si_code = SEGV_MAPERR;
+	vm_fault_t fault;
 	siginfo_t info;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index a0b7bd6..3a18d33 100644
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -15,6 +15,7 @@
 #include <linux/uaccess.h>
 #include <linux/kdebug.h>
 #include <linux/perf_event.h>
+#include <linux/mm_types.h>
 #include <asm/pgalloc.h>
 #include <asm/mmu.h>
 
@@ -66,7 +67,8 @@ void do_page_fault(unsigned long address, struct pt_regs *regs)
 	struct task_struct *tsk = current;
 	struct mm_struct *mm = tsk->mm;
 	siginfo_t info;
-	int fault, ret;
+	int ret;
+	vm_fault_t fault;
 	int write = regs->ecr_cause & ECR_C_PROTV_STORE;  /* ST/EX */
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index b75eada..758abcb 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -219,12 +219,12 @@ static inline bool access_error(unsigned int fsr, struct vm_area_struct *vma)
 	return vma->vm_flags & mask ? false : true;
 }
 
-static int __kprobes
+static vm_fault_t __kprobes
 __do_page_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
 		unsigned int flags, struct task_struct *tsk)
 {
 	struct vm_area_struct *vma;
-	int fault;
+	vm_fault_t fault;
 
 	vma = find_vma(mm, addr);
 	fault = VM_FAULT_BADMAP;
@@ -259,7 +259,8 @@ static inline bool access_error(unsigned int fsr, struct vm_area_struct *vma)
 {
 	struct task_struct *tsk;
 	struct mm_struct *mm;
-	int fault, sig, code;
+	int sig, code;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	if (notify_page_fault(regs, fsr))
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 2af3dd8..8da263b 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -371,12 +371,12 @@ static void do_bad_area(unsigned long addr, unsigned int esr, struct pt_regs *re
 #define VM_FAULT_BADMAP		0x010000
 #define VM_FAULT_BADACCESS	0x020000
 
-static int __do_page_fault(struct mm_struct *mm, unsigned long addr,
+static vm_fault_t __do_page_fault(struct mm_struct *mm, unsigned long addr,
 			   unsigned int mm_flags, unsigned long vm_flags,
 			   struct task_struct *tsk)
 {
 	struct vm_area_struct *vma;
-	int fault;
+	vm_fault_t fault;
 
 	vma = find_vma(mm, addr);
 	fault = VM_FAULT_BADMAP;
@@ -419,7 +419,7 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
 	struct task_struct *tsk;
 	struct mm_struct *mm;
 	struct siginfo si;
-	int fault, major = 0;
+	vm_fault_t fault, major = 0;
 	unsigned long vm_flags = VM_READ | VM_WRITE;
 	unsigned int mm_flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
diff --git a/arch/hexagon/mm/vm_fault.c b/arch/hexagon/mm/vm_fault.c
index 3eec33c..5d1de6c 100644
--- a/arch/hexagon/mm/vm_fault.c
+++ b/arch/hexagon/mm/vm_fault.c
@@ -52,7 +52,7 @@ void do_page_fault(unsigned long address, long cause, struct pt_regs *regs)
 	struct mm_struct *mm = current->mm;
 	siginfo_t info;
 	int si_code = SEGV_MAPERR;
-	int fault;
+	vm_fault_t fault;
 	const struct exception_table_entry *fixup;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index dfdc152..e085d89 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -87,7 +87,7 @@ static inline int notify_page_fault(struct pt_regs *regs, int trap)
 	struct mm_struct *mm = current->mm;
 	struct siginfo si;
 	unsigned long mask;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	mask = ((((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT)
diff --git a/arch/m68k/mm/fault.c b/arch/m68k/mm/fault.c
index 03253c4..1fc7ac0 100644
--- a/arch/m68k/mm/fault.c
+++ b/arch/m68k/mm/fault.c
@@ -73,7 +73,7 @@ int do_page_fault(struct pt_regs *regs, unsigned long address,
 {
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct * vma;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	pr_debug("do page fault:\nregs->sr=%#x, regs->pc=%#lx, address=%#lx, %ld, %p\n",
@@ -139,7 +139,7 @@ int do_page_fault(struct pt_regs *regs, unsigned long address,
 	 */
 
 	fault = handle_mm_fault(vma, address, flags);
-	pr_debug("handle_mm_fault returns %d\n", fault);
+	pr_debug("handle_mm_fault returns %x\n", fault);
 
 	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
 		return 0;
diff --git a/arch/microblaze/mm/fault.c b/arch/microblaze/mm/fault.c
index f91b30f..92a8682 100644
--- a/arch/microblaze/mm/fault.c
+++ b/arch/microblaze/mm/fault.c
@@ -91,7 +91,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long address,
 	siginfo_t info;
 	int code = SEGV_MAPERR;
 	int is_write = error_code & ESR_S;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	regs->ear = address;
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
index 4f8f5bf..0bc5030 100644
--- a/arch/mips/mm/fault.c
+++ b/arch/mips/mm/fault.c
@@ -43,7 +43,7 @@ static void __kprobes __do_page_fault(struct pt_regs *regs, unsigned long write,
 	struct mm_struct *mm = tsk->mm;
 	const int field = sizeof(unsigned long) * 2;
 	siginfo_t info;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	static DEFINE_RATELIMIT_STATE(ratelimit_state, 5 * HZ, 10);
diff --git a/arch/nds32/mm/fault.c b/arch/nds32/mm/fault.c
index 3a246fb..96796d3 100644
--- a/arch/nds32/mm/fault.c
+++ b/arch/nds32/mm/fault.c
@@ -73,7 +73,7 @@ void do_page_fault(unsigned long entry, unsigned long addr,
 	struct mm_struct *mm;
 	struct vm_area_struct *vma;
 	siginfo_t info;
-	int fault;
+	vm_fault_t fault;
 	unsigned int mask = VM_READ | VM_WRITE | VM_EXEC;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
diff --git a/arch/nios2/mm/fault.c b/arch/nios2/mm/fault.c
index b804dd0..24fd84c 100644
--- a/arch/nios2/mm/fault.c
+++ b/arch/nios2/mm/fault.c
@@ -47,7 +47,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long cause,
 	struct task_struct *tsk = current;
 	struct mm_struct *mm = tsk->mm;
 	int code = SEGV_MAPERR;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	cause >>= 2;
diff --git a/arch/openrisc/mm/fault.c b/arch/openrisc/mm/fault.c
index d0021df..21e8f16 100644
--- a/arch/openrisc/mm/fault.c
+++ b/arch/openrisc/mm/fault.c
@@ -53,7 +53,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long address,
 	struct mm_struct *mm;
 	struct vm_area_struct *vma;
 	siginfo_t info;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	tsk = current;
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index e247edb..ff9e634 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -262,7 +262,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	struct task_struct *tsk;
 	struct mm_struct *mm;
 	unsigned long acc_type;
-	int fault = 0;
+	vm_fault_t fault = 0;
 	unsigned int flags;
 
 	if (faulthandler_disabled())
diff --git a/arch/powerpc/mm/copro_fault.c b/arch/powerpc/mm/copro_fault.c
index 7d0945b..c8da352 100644
--- a/arch/powerpc/mm/copro_fault.c
+++ b/arch/powerpc/mm/copro_fault.c
@@ -34,7 +34,7 @@
  * to handle fortunately.
  */
 int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
-		unsigned long dsisr, unsigned *flt)
+		unsigned long dsisr, vm_fault_t *flt)
 {
 	struct vm_area_struct *vma;
 	unsigned long is_write;
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index c01d627..17cce1b 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -159,7 +159,7 @@ static noinline int bad_access(struct pt_regs *regs, unsigned long address)
 }
 
 static int do_sigbus(struct pt_regs *regs, unsigned long address,
-		     unsigned int fault)
+		     vm_fault_t fault)
 {
 	siginfo_t info;
 	unsigned int lsb = 0;
@@ -189,7 +189,8 @@ static int do_sigbus(struct pt_regs *regs, unsigned long address,
 	return 0;
 }
 
-static int mm_fault_error(struct pt_regs *regs, unsigned long addr, int fault)
+static int mm_fault_error(struct pt_regs *regs, unsigned long addr,
+				vm_fault_t fault)
 {
 	/*
 	 * Kernel page fault interrupted by SIGKILL. We have no reason to
@@ -402,7 +403,7 @@ static int __do_page_fault(struct pt_regs *regs, unsigned long address,
  	int is_exec = TRAP(regs) == 0x400;
 	int is_user = user_mode(regs);
 	int is_write = page_fault_is_write(error_code);
-	int fault, major = 0;
+	vm_fault_t fault, major = 0;
 	bool store_update_sp = false;
 
 	if (notify_page_fault(regs))
diff --git a/arch/riscv/mm/fault.c b/arch/riscv/mm/fault.c
index 148c98c..88401d5 100644
--- a/arch/riscv/mm/fault.c
+++ b/arch/riscv/mm/fault.c
@@ -41,7 +41,8 @@ asmlinkage void do_page_fault(struct pt_regs *regs)
 	struct mm_struct *mm;
 	unsigned long addr, cause;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
-	int fault, code = SEGV_MAPERR;
+	int code = SEGV_MAPERR;
+	vm_fault_t fault;
 
 	cause = regs->scause;
 	addr = regs->sbadaddr;
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 93faeca..8ea0855 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -350,7 +350,8 @@ static noinline int signal_return(struct pt_regs *regs)
 	return -EACCES;
 }
 
-static noinline void do_fault_error(struct pt_regs *regs, int access, int fault)
+static noinline void do_fault_error(struct pt_regs *regs, int access,
+					vm_fault_t fault)
 {
 	int si_code;
 
@@ -410,7 +411,7 @@ static noinline void do_fault_error(struct pt_regs *regs, int access, int fault)
  *   11       Page translation     ->  Not present       (nullification)
  *   3b       Region third trans.  ->  Not present       (nullification)
  */
-static inline int do_exception(struct pt_regs *regs, int access)
+static inline vm_fault_t do_exception(struct pt_regs *regs, int access)
 {
 	struct gmap *gmap;
 	struct task_struct *tsk;
@@ -420,7 +421,7 @@ static inline int do_exception(struct pt_regs *regs, int access)
 	unsigned long trans_exc_code;
 	unsigned long address;
 	unsigned int flags;
-	int fault;
+	vm_fault_t fault;
 
 	tsk = current;
 	/*
@@ -571,7 +572,8 @@ static inline int do_exception(struct pt_regs *regs, int access)
 void do_protection_exception(struct pt_regs *regs)
 {
 	unsigned long trans_exc_code;
-	int access, fault;
+	int access;
+	vm_fault_t fault;
 
 	trans_exc_code = regs->int_parm_long;
 	/*
@@ -606,7 +608,8 @@ void do_protection_exception(struct pt_regs *regs)
 
 void do_dat_exception(struct pt_regs *regs)
 {
-	int access, fault;
+	int access;
+	vm_fault_t fault;
 
 	access = VM_READ | VM_EXEC | VM_WRITE;
 	fault = do_exception(regs, access);
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c
index 6fd1bf7..474bf14 100644
--- a/arch/sh/mm/fault.c
+++ b/arch/sh/mm/fault.c
@@ -320,7 +320,7 @@ static noinline int vmalloc_fault(unsigned long address)
 
 static noinline int
 mm_fault_error(struct pt_regs *regs, unsigned long error_code,
-	       unsigned long address, unsigned int fault)
+	       unsigned long address, vm_fault_t fault)
 {
 	/*
 	 * Pagefault was interrupted by SIGKILL. We have no reason to
@@ -403,7 +403,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	struct task_struct *tsk;
 	struct mm_struct *mm;
 	struct vm_area_struct * vma;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	tsk = current;
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index a8103a8..1a44a4e 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -174,7 +174,8 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
 	unsigned int fixup;
 	unsigned long g2;
 	int from_user = !(regs->psr & PSR_PS);
-	int fault, code;
+	int code;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	if (text_fault)
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index 41363f4..2078bfe 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -284,7 +284,8 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	unsigned int insn = 0;
-	int si_code, fault_code, fault;
+	int si_code, fault_code;
+	vm_fault_t fault;
 	unsigned long address, mm_rss;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index b2b02df..0afcd09 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -72,7 +72,7 @@ int handle_page_fault(unsigned long address, unsigned long ip,
 	}
 
 	do {
-		int fault;
+		vm_fault_t fault;
 
 		fault = handle_mm_fault(vma, address, flags);
 
diff --git a/arch/unicore32/mm/fault.c b/arch/unicore32/mm/fault.c
index bbefcc4..2982140 100644
--- a/arch/unicore32/mm/fault.c
+++ b/arch/unicore32/mm/fault.c
@@ -167,11 +167,11 @@ static inline bool access_error(unsigned int fsr, struct vm_area_struct *vma)
 	return vma->vm_flags & mask ? false : true;
 }
 
-static int __do_pf(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
-		unsigned int flags, struct task_struct *tsk)
+static vm_fault_t __do_pf(struct mm_struct *mm, unsigned long addr,
+		unsigned int fsr, unsigned int flags, struct task_struct *tsk)
 {
 	struct vm_area_struct *vma;
-	int fault;
+	vm_fault_t fault;
 
 	vma = find_vma(mm, addr);
 	fault = VM_FAULT_BADMAP;
@@ -208,7 +208,8 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 {
 	struct task_struct *tsk;
 	struct mm_struct *mm;
-	int fault, sig, code;
+	int sig, code;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	tsk = current;
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 73bd8c9..5171d60 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -16,6 +16,7 @@
 #include <linux/prefetch.h>		/* prefetchw			*/
 #include <linux/context_tracking.h>	/* exception_enter(), ...	*/
 #include <linux/uaccess.h>		/* faulthandler_disabled()	*/
+#include <linux/mm_types.h>
 
 #include <asm/cpufeature.h>		/* boot_cpu_has, ...		*/
 #include <asm/traps.h>			/* dotraplinkage, ...		*/
@@ -1004,7 +1005,7 @@ static inline bool bad_area_access_from_pkeys(unsigned long error_code,
 
 static noinline void
 mm_fault_error(struct pt_regs *regs, unsigned long error_code,
-	       unsigned long address, u32 *pkey, unsigned int fault)
+	       unsigned long address, u32 *pkey, vm_fault_t fault)
 {
 	if (fatal_signal_pending(current) && !(error_code & X86_PF_USER)) {
 		no_context(regs, error_code, address, 0, 0);
@@ -1218,7 +1219,7 @@ static inline bool smap_violation(int error_code, struct pt_regs *regs)
 	struct vm_area_struct *vma;
 	struct task_struct *tsk;
 	struct mm_struct *mm;
-	int fault, major = 0;
+	vm_fault_t fault, major = 0;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 	u32 pkey;
 
diff --git a/arch/xtensa/mm/fault.c b/arch/xtensa/mm/fault.c
index 8b9b6f4..203fade 100644
--- a/arch/xtensa/mm/fault.c
+++ b/arch/xtensa/mm/fault.c
@@ -42,7 +42,7 @@ void do_page_fault(struct pt_regs *regs)
 	siginfo_t info;
 
 	int is_write, is_exec;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	info.si_code = SEGV_MAPERR;
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index 1d0b53a0..58da65d 100644
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -508,7 +508,7 @@ static void do_fault(struct work_struct *work)
 {
 	struct fault *fault = container_of(work, struct fault, work);
 	struct vm_area_struct *vma;
-	int ret = VM_FAULT_ERROR;
+	vm_fault_t ret = VM_FAULT_ERROR;
 	unsigned int flags = 0;
 	struct mm_struct *mm;
 	u64 address;
diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c
index e8cd984..75189c0 100644
--- a/drivers/iommu/intel-svm.c
+++ b/drivers/iommu/intel-svm.c
@@ -24,6 +24,7 @@
 #include <linux/pci-ats.h>
 #include <linux/dmar.h>
 #include <linux/interrupt.h>
+#include <linux/mm_types.h>
 #include <asm/page.h>
 
 #define PASID_ENTRY_P		BIT_ULL(0)
@@ -594,7 +595,8 @@ static irqreturn_t prq_event_thread(int irq, void *d)
 		struct vm_area_struct *vma;
 		struct page_req_dsc *req;
 		struct qi_desc resp;
-		int ret, result;
+		int result;
+		vm_fault_t ret;
 		u64 address;
 
 		handled = 1;
diff --git a/mm/hmm.c b/mm/hmm.c
index 486dc39..d7919e5 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -308,14 +308,14 @@ static int hmm_vma_do_fault(struct mm_walk *walk, unsigned long addr,
 	struct hmm_vma_walk *hmm_vma_walk = walk->private;
 	struct hmm_range *range = hmm_vma_walk->range;
 	struct vm_area_struct *vma = walk->vma;
-	int r;
+	vm_fault_t ret;
 
 	flags |= hmm_vma_walk->block ? 0 : FAULT_FLAG_ALLOW_RETRY;
 	flags |= write_fault ? FAULT_FLAG_WRITE : 0;
-	r = handle_mm_fault(vma, addr, flags);
-	if (r & VM_FAULT_RETRY)
+	ret = handle_mm_fault(vma, addr, flags);
+	if (ret & VM_FAULT_RETRY)
 		return -EBUSY;
-	if (r & VM_FAULT_ERROR) {
+	if (ret & VM_FAULT_ERROR) {
 		*pfn = range->values[HMM_PFN_ERROR];
 		return -EFAULT;
 	}
diff --git a/mm/ksm.c b/mm/ksm.c
index e3cbf9a..cb4e6ed 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -451,7 +451,7 @@ static inline bool ksm_test_exit(struct mm_struct *mm)
 static int break_ksm(struct vm_area_struct *vma, unsigned long addr)
 {
 	struct page *page;
-	int ret = 0;
+	vm_fault_t ret = 0;
 
 	do {
 		cond_resched();
-- 
1.9.1



From - Thu Nov 08 21:41:35 2018
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Subject: Re: [PATCH] mm: convert return type of handle_mm_fault() caller to
	vm_fault_t
Date: Fri, 15 Jun 2018 05:31:01 +0800
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24851>


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Hi Souptick,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on v4.17]
[cannot apply to linus/master powerpc/next sparc-next/master next-20180614]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Souptick-Joarder/mm-convert-return-type-of-handle_mm_fault-caller-to-vm_fault_t/20180615-030636
config: powerpc-defconfig (attached as .config)
compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

>> arch/powerpc/mm/copro_fault.c:36:5: error: conflicting types for 'copro_handle_mm_fault'
    int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
        ^~~~~~~~~~~~~~~~~~~~~
   In file included from arch/powerpc/mm/copro_fault.c:27:0:
   arch/powerpc/include/asm/copro.h:18:5: note: previous declaration of 'copro_handle_mm_fault' was here
    int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
        ^~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/linkage.h:7:0,
                    from include/linux/kernel.h:7,
                    from include/asm-generic/bug.h:18,
                    from arch/powerpc/include/asm/bug.h:128,
                    from include/linux/bug.h:5,
                    from arch/powerpc/include/asm/mmu.h:126,
                    from arch/powerpc/include/asm/lppaca.h:36,
                    from arch/powerpc/include/asm/paca.h:21,
                    from arch/powerpc/include/asm/current.h:16,
                    from include/linux/sched.h:12,
                    from arch/powerpc/mm/copro_fault.c:23:
   arch/powerpc/mm/copro_fault.c:101:19: error: conflicting types for 'copro_handle_mm_fault'
    EXPORT_SYMBOL_GPL(copro_handle_mm_fault);
                      ^
   include/linux/export.h:65:21: note: in definition of macro '___EXPORT_SYMBOL'
     extern typeof(sym) sym;      \
                        ^~~
   arch/powerpc/mm/copro_fault.c:101:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    EXPORT_SYMBOL_GPL(copro_handle_mm_fault);
    ^~~~~~~~~~~~~~~~~
   In file included from arch/powerpc/mm/copro_fault.c:27:0:
   arch/powerpc/include/asm/copro.h:18:5: note: previous declaration of 'copro_handle_mm_fault' was here
    int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
        ^~~~~~~~~~~~~~~~~~~~~

vim +/copro_handle_mm_fault +36 arch/powerpc/mm/copro_fault.c

7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   30  
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   31  /*
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   32   * This ought to be kept in sync with the powerpc specific do_page_fault
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   33   * function. Currently, there are a few corner cases that we haven't had
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   34   * to handle fortunately.
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   35   */
e83d01697 arch/powerpc/mm/copro_fault.c           Ian Munsie         2014-10-08  @36  int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
7c71e54a4 arch/powerpc/mm/copro_fault.c           Souptick Joarder   2018-06-15   37  		unsigned long dsisr, vm_fault_t *flt)
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   38  {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   39  	struct vm_area_struct *vma;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   40  	unsigned long is_write;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   41  	int ret;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   42  
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   43  	if (mm == NULL)
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   44  		return -EFAULT;
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   45  
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   46  	if (mm->pgd == NULL)
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   47  		return -EFAULT;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   48  
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   49  	down_read(&mm->mmap_sem);
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   50  	ret = -EFAULT;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   51  	vma = find_vma(mm, ea);
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   52  	if (!vma)
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   53  		goto out_unlock;
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   54  
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   55  	if (ea < vma->vm_start) {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   56  		if (!(vma->vm_flags & VM_GROWSDOWN))
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   57  			goto out_unlock;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   58  		if (expand_stack(vma, ea))
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   59  			goto out_unlock;
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   60  	}
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   61  
e83d01697 arch/powerpc/mm/copro_fault.c           Ian Munsie         2014-10-08   62  	is_write = dsisr & DSISR_ISSTORE;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   63  	if (is_write) {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   64  		if (!(vma->vm_flags & VM_WRITE))
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   65  			goto out_unlock;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   66  	} else {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   67  		if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   68  			goto out_unlock;
842915f56 arch/powerpc/mm/copro_fault.c           Mel Gorman         2015-02-12   69  		/*
18061c17c arch/powerpc/mm/copro_fault.c           Aneesh Kumar K.V   2017-01-30   70  		 * PROT_NONE is covered by the VMA check above.
18061c17c arch/powerpc/mm/copro_fault.c           Aneesh Kumar K.V   2017-01-30   71  		 * and hash should get a NOHPTE fault instead of
18061c17c arch/powerpc/mm/copro_fault.c           Aneesh Kumar K.V   2017-01-30   72  		 * a PROTFAULT in case fixup is needed for things
18061c17c arch/powerpc/mm/copro_fault.c           Aneesh Kumar K.V   2017-01-30   73  		 * like autonuma.
842915f56 arch/powerpc/mm/copro_fault.c           Mel Gorman         2015-02-12   74  		 */
18061c17c arch/powerpc/mm/copro_fault.c           Aneesh Kumar K.V   2017-01-30   75  		if (!radix_enabled())
842915f56 arch/powerpc/mm/copro_fault.c           Mel Gorman         2015-02-12   76  			WARN_ON_ONCE(dsisr & DSISR_PROTFAULT);
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   77  	}
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   78  
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   79  	ret = 0;
dcddffd41 arch/powerpc/mm/copro_fault.c           Kirill A. Shutemov 2016-07-26   80  	*flt = handle_mm_fault(vma, ea, is_write ? FAULT_FLAG_WRITE : 0);
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   81  	if (unlikely(*flt & VM_FAULT_ERROR)) {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   82  		if (*flt & VM_FAULT_OOM) {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   83  			ret = -ENOMEM;
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   84  			goto out_unlock;
33692f275 arch/powerpc/mm/copro_fault.c           Linus Torvalds     2015-01-29   85  		} else if (*flt & (VM_FAULT_SIGBUS | VM_FAULT_SIGSEGV)) {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   86  			ret = -EFAULT;
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   87  			goto out_unlock;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   88  		}
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   89  		BUG();
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   90  	}
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   91  
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   92  	if (*flt & VM_FAULT_MAJOR)
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   93  		current->maj_flt++;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   94  	else
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   95  		current->min_flt++;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   96  
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   97  out_unlock:
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   98  	up_read(&mm->mmap_sem);
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   99  	return ret;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20  100  }
e83d01697 arch/powerpc/mm/copro_fault.c           Ian Munsie         2014-10-08  101  EXPORT_SYMBOL_GPL(copro_handle_mm_fault);
73d16a6e0 arch/powerpc/mm/copro_fault.c           Ian Munsie         2014-10-08  102  

:::::: The code at line 36 was first introduced by commit
:::::: e83d01697583d8610d1d62279758c2a881e3396f powerpc/cell: Move spu_handle_mm_fault() out of cell platform

:::::: TO: Ian Munsie <imunsie-8fk3Idey6ehBDgjK7y7TUQ@public.gmane.org>
:::::: CC: Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

--mP3DRpeJDSE+ciuQ
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From - Thu Nov 08 21:41:35 2018
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X-Mozilla-Keys:                                                                                 
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From: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Newsgroups: gmane.linux.kernel,gmane.linux.documentation,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: [PATCH v4 03/26] arch/*: Kconfig: fix documentation for NMI watchdog
Date: Fri, 15 Jun 2018 13:30:31 -0300
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Approved: news@gmane.org
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        linux-kernel@vger.kernel.org, Russell King <linux@armlinux.org.uk>,
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Changeset 9919cba7ff71 ("watchdog: Update documentation") updated
the documentation, removing the old nmi_watchdog.txt and adding
a file with a new content.

Update Kconfig files accordingly.

Fixes: 9919cba7ff71 ("watchdog: Update documentation")

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---
 arch/arm/Kconfig    | 2 +-
 arch/parisc/Kconfig | 2 +-
 arch/sh/Kconfig     | 2 +-
 arch/sparc/Kconfig  | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 483d2858e367..54eeb8d00bc6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1302,7 +1302,7 @@ config SMP
 	  will run faster if you say N here.
 
 	  See also <file:Documentation/x86/i386/IO-APIC.txt>,
-	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
+	  <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO available at
 	  <http://tldp.org/HOWTO/SMP-HOWTO.html>.
 
 	  If you don't know what to do here, say N.
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 4d8f64d48597..c480770fabcd 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -275,7 +275,7 @@ config SMP
 	  machines, but will use only one CPU of a multiprocessor machine.
 	  On a uniprocessor machine, the kernel will run faster if you say N.
 
-	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
 	  available at <http://www.tldp.org/docs.html#howto>.
 
 	  If you don't know what to do here, say N.
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 4bedd1c97f29..dd4f3d3e644f 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -687,7 +687,7 @@ config SMP
 	  People using multiprocessor machines who say Y here should also say
 	  Y to "Enhanced Real Time Clock Support", below.
 
-	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
 	  available at <http://www.tldp.org/docs.html#howto>.
 
 	  If you don't know what to do here, say N.
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 9a2b8877f174..0f535debf802 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -178,7 +178,7 @@ config SMP
 	  Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
 	  Management" code will be disabled if you say Y here.
 
-	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
 	  available at <http://www.tldp.org/docs.html#howto>.
 
 	  If you don't know what to do here, say N.
-- 
2.17.1



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Hi Souptick,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on v4.17]
[cannot apply to linus/master powerpc/next sparc-next/master next-20180615]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Souptick-Joarder/mm-convert-return-type-of-handle_mm_fault-caller-to-vm_fault_t/20180615-030636
config: powerpc-allyesconfig (attached as .config)
compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=powerpc 

All warnings (new ones prefixed by >>):

   arch/powerpc/mm/copro_fault.c:36:5: error: conflicting types for 'copro_handle_mm_fault'
    int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
        ^~~~~~~~~~~~~~~~~~~~~
   In file included from arch/powerpc/mm/copro_fault.c:27:0:
   arch/powerpc/include/asm/copro.h:18:5: note: previous declaration of 'copro_handle_mm_fault' was here
    int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
        ^~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/linkage.h:7:0,
                    from include/linux/kernel.h:7,
                    from include/asm-generic/bug.h:18,
                    from arch/powerpc/include/asm/bug.h:128,
                    from include/linux/bug.h:5,
                    from arch/powerpc/include/asm/mmu.h:126,
                    from arch/powerpc/include/asm/lppaca.h:36,
                    from arch/powerpc/include/asm/paca.h:21,
                    from arch/powerpc/include/asm/current.h:16,
                    from include/linux/sched.h:12,
                    from arch/powerpc/mm/copro_fault.c:23:
   arch/powerpc/mm/copro_fault.c:101:19: error: conflicting types for 'copro_handle_mm_fault'
    EXPORT_SYMBOL_GPL(copro_handle_mm_fault);
                      ^
   include/linux/export.h:65:21: note: in definition of macro '___EXPORT_SYMBOL'
     extern typeof(sym) sym;      \
                        ^~~
>> arch/powerpc/mm/copro_fault.c:101:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    EXPORT_SYMBOL_GPL(copro_handle_mm_fault);
    ^~~~~~~~~~~~~~~~~
   In file included from arch/powerpc/mm/copro_fault.c:27:0:
   arch/powerpc/include/asm/copro.h:18:5: note: previous declaration of 'copro_handle_mm_fault' was here
    int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
        ^~~~~~~~~~~~~~~~~~~~~

vim +/EXPORT_SYMBOL_GPL +101 arch/powerpc/mm/copro_fault.c

7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20  @23  #include <linux/sched.h>
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   24  #include <linux/mm.h>
4b16f8e2d arch/powerpc/platforms/cell/spu_fault.c Paul Gortmaker     2011-07-22   25  #include <linux/export.h>
e83d01697 arch/powerpc/mm/copro_fault.c           Ian Munsie         2014-10-08   26  #include <asm/reg.h>
73d16a6e0 arch/powerpc/mm/copro_fault.c           Ian Munsie         2014-10-08   27  #include <asm/copro.h>
be3ebfe82 arch/powerpc/mm/copro_fault.c           Ian Munsie         2014-10-08   28  #include <asm/spu.h>
ec249dd86 arch/powerpc/mm/copro_fault.c           Michael Neuling    2015-05-27   29  #include <misc/cxl-base.h>
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   30  
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   31  /*
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   32   * This ought to be kept in sync with the powerpc specific do_page_fault
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   33   * function. Currently, there are a few corner cases that we haven't had
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   34   * to handle fortunately.
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   35   */
e83d01697 arch/powerpc/mm/copro_fault.c           Ian Munsie         2014-10-08   36  int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
7c71e54a4 arch/powerpc/mm/copro_fault.c           Souptick Joarder   2018-06-15   37  		unsigned long dsisr, vm_fault_t *flt)
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   38  {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   39  	struct vm_area_struct *vma;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   40  	unsigned long is_write;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   41  	int ret;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   42  
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   43  	if (mm == NULL)
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   44  		return -EFAULT;
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   45  
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   46  	if (mm->pgd == NULL)
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   47  		return -EFAULT;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   48  
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   49  	down_read(&mm->mmap_sem);
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   50  	ret = -EFAULT;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   51  	vma = find_vma(mm, ea);
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   52  	if (!vma)
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   53  		goto out_unlock;
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   54  
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   55  	if (ea < vma->vm_start) {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   56  		if (!(vma->vm_flags & VM_GROWSDOWN))
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   57  			goto out_unlock;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   58  		if (expand_stack(vma, ea))
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   59  			goto out_unlock;
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   60  	}
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   61  
e83d01697 arch/powerpc/mm/copro_fault.c           Ian Munsie         2014-10-08   62  	is_write = dsisr & DSISR_ISSTORE;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   63  	if (is_write) {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   64  		if (!(vma->vm_flags & VM_WRITE))
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   65  			goto out_unlock;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   66  	} else {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   67  		if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   68  			goto out_unlock;
842915f56 arch/powerpc/mm/copro_fault.c           Mel Gorman         2015-02-12   69  		/*
18061c17c arch/powerpc/mm/copro_fault.c           Aneesh Kumar K.V   2017-01-30   70  		 * PROT_NONE is covered by the VMA check above.
18061c17c arch/powerpc/mm/copro_fault.c           Aneesh Kumar K.V   2017-01-30   71  		 * and hash should get a NOHPTE fault instead of
18061c17c arch/powerpc/mm/copro_fault.c           Aneesh Kumar K.V   2017-01-30   72  		 * a PROTFAULT in case fixup is needed for things
18061c17c arch/powerpc/mm/copro_fault.c           Aneesh Kumar K.V   2017-01-30   73  		 * like autonuma.
842915f56 arch/powerpc/mm/copro_fault.c           Mel Gorman         2015-02-12   74  		 */
18061c17c arch/powerpc/mm/copro_fault.c           Aneesh Kumar K.V   2017-01-30   75  		if (!radix_enabled())
842915f56 arch/powerpc/mm/copro_fault.c           Mel Gorman         2015-02-12   76  			WARN_ON_ONCE(dsisr & DSISR_PROTFAULT);
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   77  	}
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   78  
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   79  	ret = 0;
dcddffd41 arch/powerpc/mm/copro_fault.c           Kirill A. Shutemov 2016-07-26   80  	*flt = handle_mm_fault(vma, ea, is_write ? FAULT_FLAG_WRITE : 0);
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   81  	if (unlikely(*flt & VM_FAULT_ERROR)) {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   82  		if (*flt & VM_FAULT_OOM) {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   83  			ret = -ENOMEM;
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   84  			goto out_unlock;
33692f275 arch/powerpc/mm/copro_fault.c           Linus Torvalds     2015-01-29   85  		} else if (*flt & (VM_FAULT_SIGBUS | VM_FAULT_SIGSEGV)) {
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   86  			ret = -EFAULT;
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   87  			goto out_unlock;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   88  		}
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   89  		BUG();
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   90  	}
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   91  
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   92  	if (*flt & VM_FAULT_MAJOR)
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   93  		current->maj_flt++;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   94  	else
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   95  		current->min_flt++;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   96  
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   97  out_unlock:
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20   98  	up_read(&mm->mmap_sem);
60ee03194 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2009-02-17   99  	return ret;
7cd58e438 arch/powerpc/platforms/cell/spu_fault.c Jeremy Kerr        2007-12-20  100  }
e83d01697 arch/powerpc/mm/copro_fault.c           Ian Munsie         2014-10-08 @101  EXPORT_SYMBOL_GPL(copro_handle_mm_fault);
73d16a6e0 arch/powerpc/mm/copro_fault.c           Ian Munsie         2014-10-08  102  

:::::: The code at line 101 was first introduced by commit
:::::: e83d01697583d8610d1d62279758c2a881e3396f powerpc/cell: Move spu_handle_mm_fault() out of cell platform

:::::: TO: Ian Munsie <imunsie-8fk3Idey6ehBDgjK7y7TUQ@public.gmane.org>
:::::: CC: Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From - Thu Nov 08 21:41:35 2018
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From: Souptick Joarder <jrdr.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.uml.user,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH v2] mm: convert return type of handle_mm_fault() caller to
	vm_fault_t
Date: Sun, 17 Jun 2018 14:18:10 +0530
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Xref: news.gmane.org gmane.linux.kernel.iommu:24903 gmane.linux.ports.mips.general:65070 gmane.linux.ports.ia64:28863 gmane.linux.ports.sh.devel:57112 gmane.linux.kernel.mm:197696 gmane.linux.ports.sparc:28022 gmane.linux.ports.riscv:33 gmane.linux.ports.hexagon:1773 gmane.linux.kernel.arc:3973 gmane.linux.ports.alpha:5119 gmane.linux.uml.user:15460 gmane.linux.ports.arm.kernel:656600 gmane.linux.ports.parisc:28698 gmane.linux.kernel:2795835 gmane.linux.ports.ppc64.devel:158973
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.iommu/24903>

Use new return type vm_fault_t for fault handler. For
now, this is just documenting that the function returns
a VM_FAULT value rather than an errno. Once all instances
are converted, vm_fault_t will become a distinct type.

Ref-> commit 1c8f422059ae ("mm: change return type to vm_fault_t")

In this patch all the caller of handle_mm_fault()
are changed to return vm_fault_t type.

Signed-off-by: Souptick Joarder <jrdr.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
v2: Fixed kbuild error

 arch/alpha/mm/fault.c                     |  3 ++-
 arch/arc/mm/fault.c                       |  4 +++-
 arch/arm/mm/fault.c                       |  7 ++++---
 arch/arm64/mm/fault.c                     |  6 +++---
 arch/hexagon/mm/vm_fault.c                |  2 +-
 arch/ia64/mm/fault.c                      |  2 +-
 arch/m68k/mm/fault.c                      |  4 ++--
 arch/microblaze/mm/fault.c                |  2 +-
 arch/mips/mm/fault.c                      |  2 +-
 arch/nds32/mm/fault.c                     |  2 +-
 arch/nios2/mm/fault.c                     |  2 +-
 arch/openrisc/mm/fault.c                  |  2 +-
 arch/parisc/mm/fault.c                    |  2 +-
 arch/powerpc/include/asm/copro.h          |  4 +++-
 arch/powerpc/mm/copro_fault.c             |  2 +-
 arch/powerpc/mm/fault.c                   |  7 ++++---
 arch/powerpc/platforms/cell/spufs/fault.c |  2 +-
 arch/riscv/mm/fault.c                     |  3 ++-
 arch/s390/mm/fault.c                      | 13 ++++++++-----
 arch/sh/mm/fault.c                        |  4 ++--
 arch/sparc/mm/fault_32.c                  |  3 ++-
 arch/sparc/mm/fault_64.c                  |  3 ++-
 arch/um/kernel/trap.c                     |  2 +-
 arch/unicore32/mm/fault.c                 |  9 +++++----
 arch/x86/mm/fault.c                       |  5 +++--
 arch/xtensa/mm/fault.c                    |  2 +-
 drivers/iommu/amd_iommu_v2.c              |  2 +-
 drivers/iommu/intel-svm.c                 |  4 +++-
 drivers/misc/cxl/fault.c                  |  2 +-
 drivers/misc/ocxl/link.c                  |  3 ++-
 mm/hmm.c                                  |  8 ++++----
 mm/ksm.c                                  |  2 +-
 32 files changed, 69 insertions(+), 51 deletions(-)

diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index cd3c572..2a979ee 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -87,7 +87,8 @@
 	struct vm_area_struct * vma;
 	struct mm_struct *mm = current->mm;
 	const struct exception_table_entry *fixup;
-	int fault, si_code = SEGV_MAPERR;
+	int si_code = SEGV_MAPERR;
+	vm_fault_t fault;
 	siginfo_t info;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index a0b7bd6..3a18d33 100644
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -15,6 +15,7 @@
 #include <linux/uaccess.h>
 #include <linux/kdebug.h>
 #include <linux/perf_event.h>
+#include <linux/mm_types.h>
 #include <asm/pgalloc.h>
 #include <asm/mmu.h>
 
@@ -66,7 +67,8 @@ void do_page_fault(unsigned long address, struct pt_regs *regs)
 	struct task_struct *tsk = current;
 	struct mm_struct *mm = tsk->mm;
 	siginfo_t info;
-	int fault, ret;
+	int ret;
+	vm_fault_t fault;
 	int write = regs->ecr_cause & ECR_C_PROTV_STORE;  /* ST/EX */
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index b75eada..758abcb 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -219,12 +219,12 @@ static inline bool access_error(unsigned int fsr, struct vm_area_struct *vma)
 	return vma->vm_flags & mask ? false : true;
 }
 
-static int __kprobes
+static vm_fault_t __kprobes
 __do_page_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
 		unsigned int flags, struct task_struct *tsk)
 {
 	struct vm_area_struct *vma;
-	int fault;
+	vm_fault_t fault;
 
 	vma = find_vma(mm, addr);
 	fault = VM_FAULT_BADMAP;
@@ -259,7 +259,8 @@ static inline bool access_error(unsigned int fsr, struct vm_area_struct *vma)
 {
 	struct task_struct *tsk;
 	struct mm_struct *mm;
-	int fault, sig, code;
+	int sig, code;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	if (notify_page_fault(regs, fsr))
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 2af3dd8..8da263b 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -371,12 +371,12 @@ static void do_bad_area(unsigned long addr, unsigned int esr, struct pt_regs *re
 #define VM_FAULT_BADMAP		0x010000
 #define VM_FAULT_BADACCESS	0x020000
 
-static int __do_page_fault(struct mm_struct *mm, unsigned long addr,
+static vm_fault_t __do_page_fault(struct mm_struct *mm, unsigned long addr,
 			   unsigned int mm_flags, unsigned long vm_flags,
 			   struct task_struct *tsk)
 {
 	struct vm_area_struct *vma;
-	int fault;
+	vm_fault_t fault;
 
 	vma = find_vma(mm, addr);
 	fault = VM_FAULT_BADMAP;
@@ -419,7 +419,7 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
 	struct task_struct *tsk;
 	struct mm_struct *mm;
 	struct siginfo si;
-	int fault, major = 0;
+	vm_fault_t fault, major = 0;
 	unsigned long vm_flags = VM_READ | VM_WRITE;
 	unsigned int mm_flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
diff --git a/arch/hexagon/mm/vm_fault.c b/arch/hexagon/mm/vm_fault.c
index 3eec33c..5d1de6c 100644
--- a/arch/hexagon/mm/vm_fault.c
+++ b/arch/hexagon/mm/vm_fault.c
@@ -52,7 +52,7 @@ void do_page_fault(unsigned long address, long cause, struct pt_regs *regs)
 	struct mm_struct *mm = current->mm;
 	siginfo_t info;
 	int si_code = SEGV_MAPERR;
-	int fault;
+	vm_fault_t fault;
 	const struct exception_table_entry *fixup;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index dfdc152..e085d89 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -87,7 +87,7 @@ static inline int notify_page_fault(struct pt_regs *regs, int trap)
 	struct mm_struct *mm = current->mm;
 	struct siginfo si;
 	unsigned long mask;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	mask = ((((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT)
diff --git a/arch/m68k/mm/fault.c b/arch/m68k/mm/fault.c
index 03253c4..1fc7ac0 100644
--- a/arch/m68k/mm/fault.c
+++ b/arch/m68k/mm/fault.c
@@ -73,7 +73,7 @@ int do_page_fault(struct pt_regs *regs, unsigned long address,
 {
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct * vma;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	pr_debug("do page fault:\nregs->sr=%#x, regs->pc=%#lx, address=%#lx, %ld, %p\n",
@@ -139,7 +139,7 @@ int do_page_fault(struct pt_regs *regs, unsigned long address,
 	 */
 
 	fault = handle_mm_fault(vma, address, flags);
-	pr_debug("handle_mm_fault returns %d\n", fault);
+	pr_debug("handle_mm_fault returns %x\n", fault);
 
 	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
 		return 0;
diff --git a/arch/microblaze/mm/fault.c b/arch/microblaze/mm/fault.c
index f91b30f..92a8682 100644
--- a/arch/microblaze/mm/fault.c
+++ b/arch/microblaze/mm/fault.c
@@ -91,7 +91,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long address,
 	siginfo_t info;
 	int code = SEGV_MAPERR;
 	int is_write = error_code & ESR_S;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	regs->ear = address;
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
index 4f8f5bf..0bc5030 100644
--- a/arch/mips/mm/fault.c
+++ b/arch/mips/mm/fault.c
@@ -43,7 +43,7 @@ static void __kprobes __do_page_fault(struct pt_regs *regs, unsigned long write,
 	struct mm_struct *mm = tsk->mm;
 	const int field = sizeof(unsigned long) * 2;
 	siginfo_t info;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	static DEFINE_RATELIMIT_STATE(ratelimit_state, 5 * HZ, 10);
diff --git a/arch/nds32/mm/fault.c b/arch/nds32/mm/fault.c
index 3a246fb..96796d3 100644
--- a/arch/nds32/mm/fault.c
+++ b/arch/nds32/mm/fault.c
@@ -73,7 +73,7 @@ void do_page_fault(unsigned long entry, unsigned long addr,
 	struct mm_struct *mm;
 	struct vm_area_struct *vma;
 	siginfo_t info;
-	int fault;
+	vm_fault_t fault;
 	unsigned int mask = VM_READ | VM_WRITE | VM_EXEC;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
diff --git a/arch/nios2/mm/fault.c b/arch/nios2/mm/fault.c
index b804dd0..24fd84c 100644
--- a/arch/nios2/mm/fault.c
+++ b/arch/nios2/mm/fault.c
@@ -47,7 +47,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long cause,
 	struct task_struct *tsk = current;
 	struct mm_struct *mm = tsk->mm;
 	int code = SEGV_MAPERR;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	cause >>= 2;
diff --git a/arch/openrisc/mm/fault.c b/arch/openrisc/mm/fault.c
index d0021df..21e8f16 100644
--- a/arch/openrisc/mm/fault.c
+++ b/arch/openrisc/mm/fault.c
@@ -53,7 +53,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long address,
 	struct mm_struct *mm;
 	struct vm_area_struct *vma;
 	siginfo_t info;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	tsk = current;
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index e247edb..ff9e634 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -262,7 +262,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	struct task_struct *tsk;
 	struct mm_struct *mm;
 	unsigned long acc_type;
-	int fault = 0;
+	vm_fault_t fault = 0;
 	unsigned int flags;
 
 	if (faulthandler_disabled())
diff --git a/arch/powerpc/include/asm/copro.h b/arch/powerpc/include/asm/copro.h
index ce216df..48616fe 100644
--- a/arch/powerpc/include/asm/copro.h
+++ b/arch/powerpc/include/asm/copro.h
@@ -10,13 +10,15 @@
 #ifndef _ASM_POWERPC_COPRO_H
 #define _ASM_POWERPC_COPRO_H
 
+#include <linux/mm_types.h>
+
 struct copro_slb
 {
 	u64 esid, vsid;
 };
 
 int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
-			  unsigned long dsisr, unsigned *flt);
+			  unsigned long dsisr, vm_fault_t *flt);
 
 int copro_calculate_slb(struct mm_struct *mm, u64 ea, struct copro_slb *slb);
 
diff --git a/arch/powerpc/mm/copro_fault.c b/arch/powerpc/mm/copro_fault.c
index 7d0945b..c8da352 100644
--- a/arch/powerpc/mm/copro_fault.c
+++ b/arch/powerpc/mm/copro_fault.c
@@ -34,7 +34,7 @@
  * to handle fortunately.
  */
 int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
-		unsigned long dsisr, unsigned *flt)
+		unsigned long dsisr, vm_fault_t *flt)
 {
 	struct vm_area_struct *vma;
 	unsigned long is_write;
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index c01d627..17cce1b 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -159,7 +159,7 @@ static noinline int bad_access(struct pt_regs *regs, unsigned long address)
 }
 
 static int do_sigbus(struct pt_regs *regs, unsigned long address,
-		     unsigned int fault)
+		     vm_fault_t fault)
 {
 	siginfo_t info;
 	unsigned int lsb = 0;
@@ -189,7 +189,8 @@ static int do_sigbus(struct pt_regs *regs, unsigned long address,
 	return 0;
 }
 
-static int mm_fault_error(struct pt_regs *regs, unsigned long addr, int fault)
+static int mm_fault_error(struct pt_regs *regs, unsigned long addr,
+				vm_fault_t fault)
 {
 	/*
 	 * Kernel page fault interrupted by SIGKILL. We have no reason to
@@ -402,7 +403,7 @@ static int __do_page_fault(struct pt_regs *regs, unsigned long address,
  	int is_exec = TRAP(regs) == 0x400;
 	int is_user = user_mode(regs);
 	int is_write = page_fault_is_write(error_code);
-	int fault, major = 0;
+	vm_fault_t fault, major = 0;
 	bool store_update_sp = false;
 
 	if (notify_page_fault(regs))
diff --git a/arch/powerpc/platforms/cell/spufs/fault.c b/arch/powerpc/platforms/cell/spufs/fault.c
index 870c0a8..0195076 100644
--- a/arch/powerpc/platforms/cell/spufs/fault.c
+++ b/arch/powerpc/platforms/cell/spufs/fault.c
@@ -111,7 +111,7 @@ int spufs_handle_class1(struct spu_context *ctx)
 {
 	u64 ea, dsisr, access;
 	unsigned long flags;
-	unsigned flt = 0;
+	vm_fault_t flt = 0;
 	int ret;
 
 	/*
diff --git a/arch/riscv/mm/fault.c b/arch/riscv/mm/fault.c
index 148c98c..88401d5 100644
--- a/arch/riscv/mm/fault.c
+++ b/arch/riscv/mm/fault.c
@@ -41,7 +41,8 @@ asmlinkage void do_page_fault(struct pt_regs *regs)
 	struct mm_struct *mm;
 	unsigned long addr, cause;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
-	int fault, code = SEGV_MAPERR;
+	int code = SEGV_MAPERR;
+	vm_fault_t fault;
 
 	cause = regs->scause;
 	addr = regs->sbadaddr;
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 93faeca..8ea0855 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -350,7 +350,8 @@ static noinline int signal_return(struct pt_regs *regs)
 	return -EACCES;
 }
 
-static noinline void do_fault_error(struct pt_regs *regs, int access, int fault)
+static noinline void do_fault_error(struct pt_regs *regs, int access,
+					vm_fault_t fault)
 {
 	int si_code;
 
@@ -410,7 +411,7 @@ static noinline void do_fault_error(struct pt_regs *regs, int access, int fault)
  *   11       Page translation     ->  Not present       (nullification)
  *   3b       Region third trans.  ->  Not present       (nullification)
  */
-static inline int do_exception(struct pt_regs *regs, int access)
+static inline vm_fault_t do_exception(struct pt_regs *regs, int access)
 {
 	struct gmap *gmap;
 	struct task_struct *tsk;
@@ -420,7 +421,7 @@ static inline int do_exception(struct pt_regs *regs, int access)
 	unsigned long trans_exc_code;
 	unsigned long address;
 	unsigned int flags;
-	int fault;
+	vm_fault_t fault;
 
 	tsk = current;
 	/*
@@ -571,7 +572,8 @@ static inline int do_exception(struct pt_regs *regs, int access)
 void do_protection_exception(struct pt_regs *regs)
 {
 	unsigned long trans_exc_code;
-	int access, fault;
+	int access;
+	vm_fault_t fault;
 
 	trans_exc_code = regs->int_parm_long;
 	/*
@@ -606,7 +608,8 @@ void do_protection_exception(struct pt_regs *regs)
 
 void do_dat_exception(struct pt_regs *regs)
 {
-	int access, fault;
+	int access;
+	vm_fault_t fault;
 
 	access = VM_READ | VM_EXEC | VM_WRITE;
 	fault = do_exception(regs, access);
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c
index 6fd1bf7..474bf14 100644
--- a/arch/sh/mm/fault.c
+++ b/arch/sh/mm/fault.c
@@ -320,7 +320,7 @@ static noinline int vmalloc_fault(unsigned long address)
 
 static noinline int
 mm_fault_error(struct pt_regs *regs, unsigned long error_code,
-	       unsigned long address, unsigned int fault)
+	       unsigned long address, vm_fault_t fault)
 {
 	/*
 	 * Pagefault was interrupted by SIGKILL. We have no reason to
@@ -403,7 +403,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	struct task_struct *tsk;
 	struct mm_struct *mm;
 	struct vm_area_struct * vma;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	tsk = current;
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index a8103a8..1a44a4e 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -174,7 +174,8 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
 	unsigned int fixup;
 	unsigned long g2;
 	int from_user = !(regs->psr & PSR_PS);
-	int fault, code;
+	int code;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	if (text_fault)
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index 41363f4..2078bfe 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -284,7 +284,8 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	unsigned int insn = 0;
-	int si_code, fault_code, fault;
+	int si_code, fault_code;
+	vm_fault_t fault;
 	unsigned long address, mm_rss;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index b2b02df..0afcd09 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -72,7 +72,7 @@ int handle_page_fault(unsigned long address, unsigned long ip,
 	}
 
 	do {
-		int fault;
+		vm_fault_t fault;
 
 		fault = handle_mm_fault(vma, address, flags);
 
diff --git a/arch/unicore32/mm/fault.c b/arch/unicore32/mm/fault.c
index bbefcc4..2982140 100644
--- a/arch/unicore32/mm/fault.c
+++ b/arch/unicore32/mm/fault.c
@@ -167,11 +167,11 @@ static inline bool access_error(unsigned int fsr, struct vm_area_struct *vma)
 	return vma->vm_flags & mask ? false : true;
 }
 
-static int __do_pf(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
-		unsigned int flags, struct task_struct *tsk)
+static vm_fault_t __do_pf(struct mm_struct *mm, unsigned long addr,
+		unsigned int fsr, unsigned int flags, struct task_struct *tsk)
 {
 	struct vm_area_struct *vma;
-	int fault;
+	vm_fault_t fault;
 
 	vma = find_vma(mm, addr);
 	fault = VM_FAULT_BADMAP;
@@ -208,7 +208,8 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 {
 	struct task_struct *tsk;
 	struct mm_struct *mm;
-	int fault, sig, code;
+	int sig, code;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	tsk = current;
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 73bd8c9..5171d60 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -16,6 +16,7 @@
 #include <linux/prefetch.h>		/* prefetchw			*/
 #include <linux/context_tracking.h>	/* exception_enter(), ...	*/
 #include <linux/uaccess.h>		/* faulthandler_disabled()	*/
+#include <linux/mm_types.h>
 
 #include <asm/cpufeature.h>		/* boot_cpu_has, ...		*/
 #include <asm/traps.h>			/* dotraplinkage, ...		*/
@@ -1004,7 +1005,7 @@ static inline bool bad_area_access_from_pkeys(unsigned long error_code,
 
 static noinline void
 mm_fault_error(struct pt_regs *regs, unsigned long error_code,
-	       unsigned long address, u32 *pkey, unsigned int fault)
+	       unsigned long address, u32 *pkey, vm_fault_t fault)
 {
 	if (fatal_signal_pending(current) && !(error_code & X86_PF_USER)) {
 		no_context(regs, error_code, address, 0, 0);
@@ -1218,7 +1219,7 @@ static inline bool smap_violation(int error_code, struct pt_regs *regs)
 	struct vm_area_struct *vma;
 	struct task_struct *tsk;
 	struct mm_struct *mm;
-	int fault, major = 0;
+	vm_fault_t fault, major = 0;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 	u32 pkey;
 
diff --git a/arch/xtensa/mm/fault.c b/arch/xtensa/mm/fault.c
index 8b9b6f4..203fade 100644
--- a/arch/xtensa/mm/fault.c
+++ b/arch/xtensa/mm/fault.c
@@ -42,7 +42,7 @@ void do_page_fault(struct pt_regs *regs)
 	siginfo_t info;
 
 	int is_write, is_exec;
-	int fault;
+	vm_fault_t fault;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
 	info.si_code = SEGV_MAPERR;
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index 1d0b53a0..58da65d 100644
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -508,7 +508,7 @@ static void do_fault(struct work_struct *work)
 {
 	struct fault *fault = container_of(work, struct fault, work);
 	struct vm_area_struct *vma;
-	int ret = VM_FAULT_ERROR;
+	vm_fault_t ret = VM_FAULT_ERROR;
 	unsigned int flags = 0;
 	struct mm_struct *mm;
 	u64 address;
diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c
index e8cd984..75189c0 100644
--- a/drivers/iommu/intel-svm.c
+++ b/drivers/iommu/intel-svm.c
@@ -24,6 +24,7 @@
 #include <linux/pci-ats.h>
 #include <linux/dmar.h>
 #include <linux/interrupt.h>
+#include <linux/mm_types.h>
 #include <asm/page.h>
 
 #define PASID_ENTRY_P		BIT_ULL(0)
@@ -594,7 +595,8 @@ static irqreturn_t prq_event_thread(int irq, void *d)
 		struct vm_area_struct *vma;
 		struct page_req_dsc *req;
 		struct qi_desc resp;
-		int ret, result;
+		int result;
+		vm_fault_t ret;
 		u64 address;
 
 		handled = 1;
diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c
index 70dbb6d..93ecc67 100644
--- a/drivers/misc/cxl/fault.c
+++ b/drivers/misc/cxl/fault.c
@@ -134,7 +134,7 @@ static int cxl_handle_segment_miss(struct cxl_context *ctx,
 
 int cxl_handle_mm_fault(struct mm_struct *mm, u64 dsisr, u64 dar)
 {
-	unsigned flt = 0;
+	vm_fault_t flt = 0;
 	int result;
 	unsigned long access, flags, inv_flags = 0;
 
diff --git a/drivers/misc/ocxl/link.c b/drivers/misc/ocxl/link.c
index f307905..4e155fb 100644
--- a/drivers/misc/ocxl/link.c
+++ b/drivers/misc/ocxl/link.c
@@ -2,6 +2,7 @@
 // Copyright 2017 IBM Corp.
 #include <linux/sched/mm.h>
 #include <linux/mutex.h>
+#include <linux/mm_types.h>
 #include <linux/mmu_context.h>
 #include <asm/copro.h>
 #include <asm/pnv-ocxl.h>
@@ -126,7 +127,7 @@ static void ack_irq(struct spa *spa, enum xsl_response r)
 
 static void xsl_fault_handler_bh(struct work_struct *fault_work)
 {
-	unsigned int flt = 0;
+	vm_fault_t flt = 0;
 	unsigned long access, flags, inv_flags = 0;
 	enum xsl_response r;
 	struct xsl_fault *fault = container_of(fault_work, struct xsl_fault,
diff --git a/mm/hmm.c b/mm/hmm.c
index 486dc39..d7919e5 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -308,14 +308,14 @@ static int hmm_vma_do_fault(struct mm_walk *walk, unsigned long addr,
 	struct hmm_vma_walk *hmm_vma_walk = walk->private;
 	struct hmm_range *range = hmm_vma_walk->range;
 	struct vm_area_struct *vma = walk->vma;
-	int r;
+	vm_fault_t ret;
 
 	flags |= hmm_vma_walk->block ? 0 : FAULT_FLAG_ALLOW_RETRY;
 	flags |= write_fault ? FAULT_FLAG_WRITE : 0;
-	r = handle_mm_fault(vma, addr, flags);
-	if (r & VM_FAULT_RETRY)
+	ret = handle_mm_fault(vma, addr, flags);
+	if (ret & VM_FAULT_RETRY)
 		return -EBUSY;
-	if (r & VM_FAULT_ERROR) {
+	if (ret & VM_FAULT_ERROR) {
 		*pfn = range->values[HMM_PFN_ERROR];
 		return -EFAULT;
 	}
diff --git a/mm/ksm.c b/mm/ksm.c
index e3cbf9a..cb4e6ed 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -451,7 +451,7 @@ static inline bool ksm_test_exit(struct mm_struct *mm)
 static int break_ksm(struct vm_area_struct *vma, unsigned long addr)
 {
 	struct page *page;
-	int ret = 0;
+	vm_fault_t ret = 0;
 
 	do {
 		cond_resched();
-- 
1.9.1


From - Thu Nov 08 21:41:35 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.parisc
Subject: convert parisc to the generic dma-noncoherent code
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This should address all the comments raised last time.



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Subject: [PATCH 1/3] parisc: merge pcx_dma_ops and pcxl_dma_ops
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The only difference is that pcxl supports dma coherent allocations, while
pcx only supports non-consistent allocations and otherwise fails.

But dma_alloc* is not in the fast path, and merging these two allows an
easy migration path to the generic dma-noncoherent implementation, so
do it.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/parisc/include/asm/dma-mapping.h |  3 +-
 arch/parisc/kernel/pci-dma.c          | 80 ++++++++++++---------------
 arch/parisc/kernel/setup.c            |  8 +--
 arch/parisc/mm/init.c                 | 11 +---
 4 files changed, 43 insertions(+), 59 deletions(-)

diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 01e1fc057c83..eeec8dd18e74 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -22,8 +22,7 @@
 */
 
 #ifdef CONFIG_PA11
-extern const struct dma_map_ops pcxl_dma_ops;
-extern const struct dma_map_ops pcx_dma_ops;
+extern const struct dma_map_ops pa11_dma_ops;
 #endif
 
 extern const struct dma_map_ops *hppa_dma_ops;
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 6df07ce4f3c2..d34cd6d34717 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -395,7 +395,7 @@ pcxl_dma_init(void)
 
 __initcall(pcxl_dma_init);
 
-static void *pa11_dma_alloc(struct device *dev, size_t size,
+static void *pcxl_dma_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
 {
 	unsigned long vaddr;
@@ -422,16 +422,44 @@ static void *pa11_dma_alloc(struct device *dev, size_t size,
 	return (void *)vaddr;
 }
 
+static void *pcx_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
+{
+	void *addr;
+
+	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0)
+		return NULL;
+
+	addr = (void *)__get_free_pages(flag, get_order(size));
+	if (addr)
+		*dma_handle = (dma_addr_t)virt_to_phys(addr);
+
+	return addr;
+}
+
+static void *pa11_dma_alloc(struct device *dev, size_t size,
+		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
+{
+
+	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl)
+		return pcxl_dma_alloc(dev, size, dma_handle, gfp, attrs);
+	else
+		return pcx_dma_alloc(dev, size, dma_handle, gfp, attrs);
+}
+
 static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
-	int order;
+	int order = get_order(size);
 
-	order = get_order(size);
-	size = 1 << (order + PAGE_SHIFT);
-	unmap_uncached_pages((unsigned long)vaddr, size);
-	pcxl_free_range((unsigned long)vaddr, size);
-	free_pages((unsigned long)__va(dma_handle), order);
+	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl) {
+		size = 1 << (order + PAGE_SHIFT);
+		unmap_uncached_pages((unsigned long)vaddr, size);
+		pcxl_free_range((unsigned long)vaddr, size);
+
+		vaddr = __va(dma_handle);
+	}
+	free_pages((unsigned long)vaddr, get_order(size));
 }
 
 static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
@@ -560,7 +588,7 @@ static void pa11_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	flush_kernel_dcache_range((unsigned long)vaddr, size);
 }
 
-const struct dma_map_ops pcxl_dma_ops = {
+const struct dma_map_ops pa11_dma_ops = {
 	.alloc =		pa11_dma_alloc,
 	.free =			pa11_dma_free,
 	.map_page =		pa11_dma_map_page,
@@ -573,39 +601,3 @@ const struct dma_map_ops pcxl_dma_ops = {
 	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
 	.cache_sync =		pa11_dma_cache_sync,
 };
-
-static void *pcx_dma_alloc(struct device *dev, size_t size,
-		dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
-{
-	void *addr;
-
-	if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0)
-		return NULL;
-
-	addr = (void *)__get_free_pages(flag, get_order(size));
-	if (addr)
-		*dma_handle = (dma_addr_t)virt_to_phys(addr);
-
-	return addr;
-}
-
-static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
-		dma_addr_t iova, unsigned long attrs)
-{
-	free_pages((unsigned long)vaddr, get_order(size));
-	return;
-}
-
-const struct dma_map_ops pcx_dma_ops = {
-	.alloc =		pcx_dma_alloc,
-	.free =			pcx_dma_free,
-	.map_page =		pa11_dma_map_page,
-	.unmap_page =		pa11_dma_unmap_page,
-	.map_sg =		pa11_dma_map_sg,
-	.unmap_sg =		pa11_dma_unmap_sg,
-	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
-	.sync_single_for_device = pa11_dma_sync_single_for_device,
-	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
-	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
-	.cache_sync =		pa11_dma_cache_sync,
-};
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 8d3a7b80ac42..5c8450a22255 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -97,14 +97,12 @@ void __init dma_ops_init(void)
 		panic(	"PA-RISC Linux currently only supports machines that conform to\n"
 			"the PA-RISC 1.1 or 2.0 architecture specification.\n");
 
-	case pcxs:
-	case pcxt:
-		hppa_dma_ops = &pcx_dma_ops;
-		break;
 	case pcxl2:
 		pa7300lc_init();
 	case pcxl: /* falls through */
-		hppa_dma_ops = &pcxl_dma_ops;
+	case pcxs:
+	case pcxt:
+		hppa_dma_ops = &pa11_dma_ops;
 		break;
 	default:
 		break;
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 2607d2d33405..74842d28a7a1 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -19,7 +19,6 @@
 #include <linux/gfp.h>
 #include <linux/delay.h>
 #include <linux/init.h>
-#include <linux/pci.h>		/* for hppa_dma_ops and pcxl_dma_ops */
 #include <linux/initrd.h>
 #include <linux/swap.h>
 #include <linux/unistd.h>
@@ -616,17 +615,13 @@ void __init mem_init(void)
 	free_all_bootmem();
 
 #ifdef CONFIG_PA11
-	if (hppa_dma_ops == &pcxl_dma_ops) {
+	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl) {
 		pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
 		parisc_vmalloc_start = SET_MAP_OFFSET(pcxl_dma_start
 						+ PCXL_DMA_MAP_SIZE);
-	} else {
-		pcxl_dma_start = 0;
-		parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
-	}
-#else
-	parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
+	} else
 #endif
+		parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START);
 
 	mem_init_print_info(NULL);
 
-- 
2.17.1


From - Thu Nov 08 21:41:36 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.parisc
Subject: [PATCH 2/3] parisc: always use flush_kernel_dcache_range for DMA
	cache maintainance
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Xref: news.gmane.org gmane.linux.kernel.iommu:24922 gmane.linux.ports.parisc:28701
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Current the S/G list based DMA ops use flush_kernel_vmap_range which
contains a few UP optimizations, while the rest of the DMA operations
uses flush_kernel_dcache_range.  The single vs sg operations are supposed
to have the same effect, so they should use the same routines.  Use
the more conservation version for now, but if people more familiar with
parisc think the vmap version is generally fine for DMA we should switch
all interfaces over to it.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/parisc/kernel/pci-dma.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index d34cd6d34717..1f85ca2c0c9e 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -537,7 +537,7 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
 	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
+		flush_kernel_dcache_range(sg_virt(sg), sg->length);
 }
 
 static void pa11_dma_sync_single_for_cpu(struct device *dev,
@@ -568,7 +568,7 @@ static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sgl
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
 	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
+		flush_kernel_dcache_range(sg_virt(sg), sg->length);
 }
 
 static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
@@ -579,7 +579,7 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
 	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
 
 	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_vmap_range(sg_virt(sg), sg->length);
+		flush_kernel_dcache_range(sg_virt(sg), sg->length);
 }
 
 static void pa11_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
-- 
2.17.1


From - Thu Nov 08 21:41:36 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.parisc
Subject: [PATCH 3/3] parisc: use generic dma_noncoherent_ops
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Switch to the generic noncoherent direct mapping implementation.

Fix sync_single_for_cpu to do skip the cache flush unless the transfer
is to the device to match the more tested unmap_single path which should
have the same cache coherency implications.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 arch/parisc/Kconfig                   |   4 +
 arch/parisc/include/asm/dma-mapping.h |   4 -
 arch/parisc/kernel/pci-dma.c          | 145 ++------------------------
 arch/parisc/kernel/setup.c            |   2 +-
 4 files changed, 16 insertions(+), 139 deletions(-)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index c480770fabcd..6fb2243a3b04 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -188,6 +188,10 @@ config PA20
 config PA11
 	def_bool y
 	depends on PA7000 || PA7100LC || PA7200 || PA7300LC
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select DMA_NONCOHERENT_OPS
+	select DMA_NONCOHERENT_CACHE_SYNC
 
 config PREFETCH
 	def_bool y
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index eeec8dd18e74..44a9f97194aa 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -21,10 +21,6 @@
 ** flush/purge and allocate "regular" cacheable pages for everything.
 */
 
-#ifdef CONFIG_PA11
-extern const struct dma_map_ops pa11_dma_ops;
-#endif
-
 extern const struct dma_map_ops *hppa_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 1f85ca2c0c9e..04c48f1ef3fb 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -21,13 +21,12 @@
 #include <linux/init.h>
 #include <linux/gfp.h>
 #include <linux/mm.h>
-#include <linux/pci.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/string.h>
 #include <linux/types.h>
-#include <linux/scatterlist.h>
-#include <linux/export.h>
+#include <linux/dma-direct.h>
+#include <linux/dma-noncoherent.h>
 
 #include <asm/cacheflush.h>
 #include <asm/dma.h>    /* for DMA_CHUNK_SIZE */
@@ -437,7 +436,7 @@ static void *pcx_dma_alloc(struct device *dev, size_t size,
 	return addr;
 }
 
-static void *pa11_dma_alloc(struct device *dev, size_t size,
+void *arch_dma_alloc(struct device *dev, size_t size,
 		dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
 
@@ -447,7 +446,7 @@ static void *pa11_dma_alloc(struct device *dev, size_t size,
 		return pcx_dma_alloc(dev, size, dma_handle, gfp, attrs);
 }
 
-static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
 		dma_addr_t dma_handle, unsigned long attrs)
 {
 	int order = get_order(size);
@@ -462,142 +461,20 @@ static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
 	free_pages((unsigned long)vaddr, get_order(size));
 }
 
-static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
-		unsigned long offset, size_t size,
-		enum dma_data_direction direction, unsigned long attrs)
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	void *addr = page_address(page) + offset;
-	BUG_ON(direction == DMA_NONE);
-
-	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
-		flush_kernel_dcache_range((unsigned long) addr, size);
-
-	return virt_to_phys(addr);
-}
-
-static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
-		size_t size, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return;
-
-	if (direction == DMA_TO_DEVICE)
-		return;
-
-	/*
-	 * For PCI_DMA_FROMDEVICE this flush is not necessary for the
-	 * simple map/unmap case. However, it IS necessary if if
-	 * pci_dma_sync_single_* has been called and the buffer reused.
-	 */
-
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle), size);
+	flush_kernel_dcache_range((unsigned long)phys_to_virt(paddr), size);
 }
 
-static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
+void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
+		size_t size, enum dma_data_direction dir)
 {
-	int i;
-	struct scatterlist *sg;
-
-	BUG_ON(direction == DMA_NONE);
-
-	for_each_sg(sglist, sg, nents, i) {
-		unsigned long vaddr = (unsigned long)sg_virt(sg);
-
-		sg_dma_address(sg) = (dma_addr_t) virt_to_phys(vaddr);
-		sg_dma_len(sg) = sg->length;
-
-		if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-			continue;
-
-		flush_kernel_dcache_range(vaddr, sg->length);
-	}
-	return nents;
+	flush_kernel_dcache_range((unsigned long)phys_to_virt(paddr), size);
 }
 
-static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
-		int nents, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	int i;
-	struct scatterlist *sg;
-
-	BUG_ON(direction == DMA_NONE);
-
-	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
-		return;
-
-	if (direction == DMA_TO_DEVICE)
-		return;
-
-	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
-
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_dcache_range(sg_virt(sg), sg->length);
-}
-
-static void pa11_dma_sync_single_for_cpu(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
-			size);
-}
-
-static void pa11_dma_sync_single_for_device(struct device *dev,
-		dma_addr_t dma_handle, size_t size,
-		enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	flush_kernel_dcache_range((unsigned long) phys_to_virt(dma_handle),
-			size);
-}
-
-static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
-{
-	int i;
-	struct scatterlist *sg;
-
-	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
-
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_dcache_range(sg_virt(sg), sg->length);
-}
-
-static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
-{
-	int i;
-	struct scatterlist *sg;
-
-	/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
-
-	for_each_sg(sglist, sg, nents, i)
-		flush_kernel_dcache_range(sg_virt(sg), sg->length);
-}
-
-static void pa11_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	       enum dma_data_direction direction)
 {
 	flush_kernel_dcache_range((unsigned long)vaddr, size);
 }
-
-const struct dma_map_ops pa11_dma_ops = {
-	.alloc =		pa11_dma_alloc,
-	.free =			pa11_dma_free,
-	.map_page =		pa11_dma_map_page,
-	.unmap_page =		pa11_dma_unmap_page,
-	.map_sg =		pa11_dma_map_sg,
-	.unmap_sg =		pa11_dma_unmap_sg,
-	.sync_single_for_cpu =	pa11_dma_sync_single_for_cpu,
-	.sync_single_for_device = pa11_dma_sync_single_for_device,
-	.sync_sg_for_cpu =	pa11_dma_sync_sg_for_cpu,
-	.sync_sg_for_device =	pa11_dma_sync_sg_for_device,
-	.cache_sync =		pa11_dma_cache_sync,
-};
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 5c8450a22255..4e87c35c22b7 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -102,7 +102,7 @@ void __init dma_ops_init(void)
 	case pcxl: /* falls through */
 	case pcxs:
 	case pcxt:
-		hppa_dma_ops = &pa11_dma_ops;
+		hppa_dma_ops = &dma_noncoherent_ops;
 		break;
 	default:
 		break;
-- 
2.17.1


From - Thu Nov 08 21:41:36 2018
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Tried enabling bpfilter on parisc, got this:

  HOSTCC  net/bpfilter/main.o
net/bpfilter/main.c:3:21: fatal error: sys/uio.h: No such file or directory
 #include <sys/uio.h>
                     ^
compilation terminated.

-- 
Meelis Roos (mroos@linux.ee)


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On 2018-06-19 1:38 PM, Meelis Roos wrote:
> Tried enabling bpfilter on parisc, got this:
>
>    HOSTCC  net/bpfilter/main.o
> net/bpfilter/main.c:3:21: fatal error: sys/uio.h: No such file or directory
>   #include <sys/uio.h>
Probably has something to do with the include directories searched by 
HOSTCC.  The location of
the file is "/usr/include/hppa-linux-gnu/sys/uio.h".

Dave

-- 
John David Anglin  dave.anglin@bell.net



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Hi Linus,

please pull some patches for the parisc architecture from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.18-1

Nothing exiting in this patchset, just small cleanups of header files, kernel
now defaults to 4 CPUs when building a SMP kernel, mark 16- and 64-kB page
sizes broken and addition of the new io_pgetevents syscall.  

Thanks,
Helge

----------------------------------------------------------------
Andy Shevchenko (1):
      parisc: Convert printk(KERN_LEVEL) to pr_lvl()

Helge Deller (6):
      parisc: Drop struct sigaction from not exported header file
      parisc: Mark 16kB and 64kB page sizes BROKEN
      parisc: Default to 4 SMP CPUs
      parisc: Wire up io_pgetevents syscall
      parisc: Reduce debug output in unwind code
      parisc: Build kernel without -ffunction-sections

 arch/parisc/Kconfig                   |  6 +++---
 arch/parisc/Makefile                  |  4 ----
 arch/parisc/include/asm/signal.h      |  8 --------
 arch/parisc/include/uapi/asm/unistd.h |  3 ++-
 arch/parisc/kernel/drivers.c          | 25 +++++++++----------------
 arch/parisc/kernel/syscall_table.S    |  1 +
 arch/parisc/kernel/unwind.c           |  4 ++--
 7 files changed, 17 insertions(+), 34 deletions(-)


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On Mon, Jul 2, 2018 at 4:01 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> JFYI, when comparing v4.18-rc3[1] to v4.18-rc2[3], the summaries are:
>   - build errors: +1/-7

  + /kisskb/src/include/linux/highmem.h: error: passing argument 1 of
'sparc_flush_page_to_ram' from incompatible pointer type
[-Werror=incompatible-pointer-types]:  => 209:20, 233:36, 137:31

sparc64/sparc-allmodconfig (patch available)

> [1] http://kisskb.ellerman.id.au/kisskb/head/021c91791a5e7e85c567452f1be3e4c2c6cb6063/ (231 out of 244 configs)
> [3] http://kisskb.ellerman.id.au/kisskb/head/7daf201d7fe8334e2d2364d4e8ed3394ec9af819/ (231 out of 244 configs)

> *** WARNINGS ***
>
> [Deleted 26903 lines about "warning: ... [-Wpointer-sign]" on parisc-allmodconfig]
> [Deleted 19308 lines about "warning: -ffunction-sections disabled; it makes profiling impossible [enabled by default]" on parisc-allmodconfig]

Seems they're gone. Hopefully for good ;-)

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds


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On 02.07.2018 16:09, Geert Uytterhoeven wrote:
> On Mon, Jul 2, 2018 at 4:01 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>> JFYI, when comparing v4.18-rc3[1] to v4.18-rc2[3], the summaries are:
> ...

Both of the following are simply happening because of old compiler which is being used:

>> [Deleted 26903 lines about "warning: ... [-Wpointer-sign]" on parisc-allmodconfig]

?

>> [Deleted 19308 lines about "warning: -ffunction-sections disabled; it makes profiling impossible [enabled by default]" on parisc-allmodconfig]

I dropped function-sections:
http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24b6c22504a27210a8377e54d24d425ae414f2c1
Still need to see if this gives problems (haven't seen any yet).

Helge


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Helge Deller <deller@gmx.de> writes:

> On 02.07.2018 16:09, Geert Uytterhoeven wrote:
>> On Mon, Jul 2, 2018 at 4:01 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>>> JFYI, when comparing v4.18-rc3[1] to v4.18-rc2[3], the summaries are:
>> ...
>
> Both of the following are simply happening because of old compiler which is being used:
>
>>> [Deleted 26903 lines about "warning: ... [-Wpointer-sign]" on parisc-allmodconfig]

It's GCC 4.6.3. Are you saying that's not supported anymore?

I can update to 8.1.0 if that's more useful.

cheers


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On 03.07.2018 03:09, Michael Ellerman wrote:
> Helge Deller <deller@gmx.de> writes:
> 
>> On 02.07.2018 16:09, Geert Uytterhoeven wrote:
>>> On Mon, Jul 2, 2018 at 4:01 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>>>> JFYI, when comparing v4.18-rc3[1] to v4.18-rc2[3], the summaries are:
>>> ...
>>
>> Both of the following are simply happening because of old compiler which is being used:
>>
>>>> [Deleted 26903 lines about "warning: ... [-Wpointer-sign]" on parisc-allmodconfig]
> 
> It's GCC 4.6.3. Are you saying that's not supported anymore?
> 
> I can update to 8.1.0 if that's more useful.

Yes, please.
Any version >= 7.2.1 should be better.

Helge


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On 2018-07-02 9:09 PM, Michael Ellerman wrote:
> It's GCC 4.6.3. Are you saying that's not supported anymore?
See <https://gcc.gnu.org/> for supported releases.

Dave

-- 
John David Anglin  dave.anglin@bell.net



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Subject: Re: [PATCH v5 1/4] resource: Move reparent_resources() to
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To: Andy Shevchenko <andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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Hi Andy,

On 06/12/18 at 05:24pm, Andy Shevchenko wrote:
> On Tue, Jun 12, 2018 at 5:20 PM, Andy Shevchenko
> <andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >> Hmm, I just copied it from arch/powerpc/kernel/pci-common.c. The
> >> function interface expects an integer returned value, not sure what a
> >> real error codes look like, could you give more hints? Will change
> >> accordingly.
> >
> > I briefly looked at the code and error codes we have, so, my proposal
> > is one of the following
> 
> >  - use -ECANCELED (not the best choice for first occurrence here,
> > though I can't find better)
> 
> Actually -ENOTSUPP might suit the first case (although the actual
> would be something like -EOVERLAP, which we don't have)

Sorry for late reply, and many thanks for your great suggestion.

I am fine to use -ENOTSUPP as the first returned value, and -ECANCELED
for the 2nd one. Or define an enum as you suggested inside the function
or in header file.

Or use -EBUSY for the first case because existing resource is
overlapping but not fully contained by 'res'; and -EINVAL for
the 2nd case since didn't find any one resources which is contained by
'res', means we passed in a invalid resource. 

All is fine to me, I can repost with each of them.

Thanks
Baoquan

> 
> >  - use positive integers (or enum), like
> >   #define RES_REPARENTED 0
> >   #define RES_OVERLAPPED 1
> >   #define RES_NOCONFLICT 2
> >
> >
> >>> > +               if (firstpp == NULL)
> >>> > +                       firstpp = pp;
> >>> > +       }
> >>>
> >>> > +       if (firstpp == NULL)
> >>> > +               return -1;      /* didn't find any conflicting entries? */
> >>>
> >>> Ditto.
> >
> > Ditto.
> >
> >>>
> >>> > +}
> >>> > +EXPORT_SYMBOL(reparent_resources);
> >
> > --
> > With Best Regards,
> > Andy Shevchenko
> 
> 
> 
> -- 
> With Best Regards,
> Andy Shevchenko

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Subject: Re: [PATCH v5 1/4] resource: Move reparent_resources() to
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To: Baoquan He <bhe@redhat.com>
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On Tue, Jul 3, 2018 at 5:55 PM, Baoquan He <bhe@redhat.com> wrote:
> On 06/12/18 at 05:24pm, Andy Shevchenko wrote:
>> On Tue, Jun 12, 2018 at 5:20 PM, Andy Shevchenko
>> <andy.shevchenko@gmail.com> wrote:

>> > I briefly looked at the code and error codes we have, so, my proposal
>> > is one of the following
>>
>> >  - use -ECANCELED (not the best choice for first occurrence here,
>> > though I can't find better)
>>
>> Actually -ENOTSUPP might suit the first case (although the actual
>> would be something like -EOVERLAP, which we don't have)
>
> Sorry for late reply, and many thanks for your great suggestion.
>

> I am fine to use -ENOTSUPP as the first returned value, and -ECANCELED
> for the 2nd one.

I have no strong opinion, but I like (slightly better) this approach ^^^

> Or define an enum as you suggested inside the function
> or in header file.

>
> Or use -EBUSY for the first case because existing resource is
> overlapping but not fully contained by 'res'; and -EINVAL for
> the 2nd case since didn't find any one resources which is contained by
> 'res', means we passed in a invalid resource.
>
> All is fine to me, I can repost with each of them.

>> >  - use positive integers (or enum), like
>> >   #define RES_REPARENTED 0
>> >   #define RES_OVERLAPPED 1
>> >   #define RES_NOCONFLICT 2

-- 
With Best Regards,
Andy Shevchenko

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Subject: [PATCH v6 0/4] resource: Use list_head to link sibling resource
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Archived-At: <http://permalink.gmane.org/gmane.linux.hardware.nvdimm/10603>

This patchset is doing:
1) Replace struct resource's sibling list from singly linked list to
list_head. Clearing out those pointer operation within singly linked
list for better code readability.
2) Based on list_head replacement, add a new function
walk_system_ram_res_rev() which can does reversed iteration on
iomem_resource's siblings.
3) Change kexec_file loading to search system RAM top down for kernel
loadin, using walk_system_ram_res_rev().

Note:
This patchset only passed testing on  x86_64 arch with network
enabling. The thing we need pay attetion to is that a root resource's
child member need be initialized specifically with LIST_HEAD_INIT() if
statically defined or INIT_LIST_HEAD() for dynamically definition. Here
Just like we do for iomem_resource/ioport_resource, or the change in
get_pci_domain_busn_res().

v5:
http://lkml.kernel.org/r/20180612032831.29747-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org

v4:
http://lkml.kernel.org/r/20180507063224.24229-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org

v3:
http://lkml.kernel.org/r/20180419001848.3041-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org

v2:
http://lkml.kernel.org/r/20180408024724.16812-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org

v1:
http://lkml.kernel.org/r/20180322033722.9279-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org

Changelog:
v5->v6:
  Fix code style problems in reparent_resources() and use existing
  error codes, according to Andy's suggestion.

  Fix bugs test robot reported.
  
v4->v5:
  Add new patch 0001 to move duplicated reparent_resources() to
  kernel/resource.c to make it be shared by different ARCH-es.

  Fix several code bugs reported by test robot on ARCH powerpc and
  microblaze.
v3->v4:
  Fix several bugs test robot reported. Rewrite cover letter and patch
  log according to reviewer's comment.

v2->v3:
  Rename resource functions first_child() and sibling() to
  resource_first_chils() and resource_sibling(). Dan suggested this.

  Move resource_first_chils() and resource_sibling() to linux/ioport.h
  and make them as inline function. Rob suggested this. Accordingly add
  linux/list.h including in linux/ioport.h, please help review if this
  bring efficiency degradation or code redundancy.

  The change on struct resource {} bring two pointers of size increase,
  mention this in git log to make it more specifically, Rob suggested
  this.

v1->v2:
  Use list_head instead to link resource siblings. This is suggested by
  Andrew.

  Rewrite walk_system_ram_res_rev() after list_head is taken to link
  resouce siblings.



Baoquan He (4):
  resource: Move reparent_resources() to kernel/resource.c and make it
    public
  resource: Use list_head to link sibling resource
  resource: add walk_system_ram_res_rev()
  kexec_file: Load kernel at top of system RAM if required

 arch/arm/plat-samsung/pm-check.c            |   6 +-
 arch/microblaze/pci/pci-common.c            |  41 +----
 arch/powerpc/kernel/pci-common.c            |  39 +----
 arch/sparc/kernel/ioport.c                  |   2 +-
 arch/xtensa/include/asm/pci-bridge.h        |   4 +-
 drivers/eisa/eisa-bus.c                     |   2 +
 drivers/gpu/drm/drm_memory.c                |   3 +-
 drivers/gpu/drm/gma500/gtt.c                |   5 +-
 drivers/hv/vmbus_drv.c                      |  52 +++---
 drivers/input/joystick/iforce/iforce-main.c |   4 +-
 drivers/nvdimm/namespace_devs.c             |   6 +-
 drivers/nvdimm/nd.h                         |   5 +-
 drivers/of/address.c                        |   4 +-
 drivers/parisc/lba_pci.c                    |   4 +-
 drivers/pci/controller/vmd.c                |   8 +-
 drivers/pci/probe.c                         |   2 +
 drivers/pci/setup-bus.c                     |   2 +-
 include/linux/ioport.h                      |  21 ++-
 kernel/kexec_file.c                         |   2 +
 kernel/resource.c                           | 263 ++++++++++++++++++----------
 20 files changed, 248 insertions(+), 227 deletions(-)

-- 
2.13.6

From - Thu Nov 08 21:41:37 2018
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To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org,
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reparent_resources() is duplicated in arch/microblaze/pci/pci-common.c
and arch/powerpc/kernel/pci-common.c, so move it to kernel/resource.c
so that it's shared.

Signed-off-by: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
 arch/microblaze/pci/pci-common.c | 37 -------------------------------------
 arch/powerpc/kernel/pci-common.c | 35 -----------------------------------
 include/linux/ioport.h           |  1 +
 kernel/resource.c                | 39 +++++++++++++++++++++++++++++++++++++++
 4 files changed, 40 insertions(+), 72 deletions(-)

diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index f34346d56095..7899bafab064 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -619,43 +619,6 @@ int pcibios_add_device(struct pci_dev *dev)
 EXPORT_SYMBOL(pcibios_add_device);
 
 /*
- * Reparent resource children of pr that conflict with res
- * under res, and make res replace those children.
- */
-static int __init reparent_resources(struct resource *parent,
-				     struct resource *res)
-{
-	struct resource *p, **pp;
-	struct resource **firstpp = NULL;
-
-	for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
-		if (p->end < res->start)
-			continue;
-		if (res->end < p->start)
-			break;
-		if (p->start < res->start || p->end > res->end)
-			return -1;	/* not completely contained */
-		if (firstpp == NULL)
-			firstpp = pp;
-	}
-	if (firstpp == NULL)
-		return -1;	/* didn't find any conflicting entries? */
-	res->parent = parent;
-	res->child = *firstpp;
-	res->sibling = *pp;
-	*firstpp = res;
-	*pp = NULL;
-	for (p = res->child; p != NULL; p = p->sibling) {
-		p->parent = res;
-		pr_debug("PCI: Reparented %s [%llx..%llx] under %s\n",
-			 p->name,
-			 (unsigned long long)p->start,
-			 (unsigned long long)p->end, res->name);
-	}
-	return 0;
-}
-
-/*
  *  Handle resources of PCI devices.  If the world were perfect, we could
  *  just allocate all the resource regions and do nothing more.  It isn't.
  *  On the other hand, we cannot just re-allocate all devices, as it would
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index fe9733ffffaa..926035bb378d 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1088,41 +1088,6 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
 EXPORT_SYMBOL(pcibios_align_resource);
 
 /*
- * Reparent resource children of pr that conflict with res
- * under res, and make res replace those children.
- */
-static int reparent_resources(struct resource *parent,
-				     struct resource *res)
-{
-	struct resource *p, **pp;
-	struct resource **firstpp = NULL;
-
-	for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
-		if (p->end < res->start)
-			continue;
-		if (res->end < p->start)
-			break;
-		if (p->start < res->start || p->end > res->end)
-			return -1;	/* not completely contained */
-		if (firstpp == NULL)
-			firstpp = pp;
-	}
-	if (firstpp == NULL)
-		return -1;	/* didn't find any conflicting entries? */
-	res->parent = parent;
-	res->child = *firstpp;
-	res->sibling = *pp;
-	*firstpp = res;
-	*pp = NULL;
-	for (p = res->child; p != NULL; p = p->sibling) {
-		p->parent = res;
-		pr_debug("PCI: Reparented %s %pR under %s\n",
-			 p->name, p, res->name);
-	}
-	return 0;
-}
-
-/*
  *  Handle resources of PCI devices.  If the world were perfect, we could
  *  just allocate all the resource regions and do nothing more.  It isn't.
  *  On the other hand, we cannot just re-allocate all devices, as it would
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index da0ebaec25f0..dfdcd0bfe54e 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -192,6 +192,7 @@ extern int allocate_resource(struct resource *root, struct resource *new,
 struct resource *lookup_resource(struct resource *root, resource_size_t start);
 int adjust_resource(struct resource *res, resource_size_t start,
 		    resource_size_t size);
+int reparent_resources(struct resource *parent, struct resource *res);
 resource_size_t resource_alignment(struct resource *res);
 static inline resource_size_t resource_size(const struct resource *res)
 {
diff --git a/kernel/resource.c b/kernel/resource.c
index 30e1bc68503b..d1cbf4b50e17 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -983,6 +983,45 @@ int adjust_resource(struct resource *res, resource_size_t start,
 }
 EXPORT_SYMBOL(adjust_resource);
 
+/*
+ * reparent_resources - reparent resource children of parent that res covers
+ * @parent: parent resource descriptor
+ * @res: resource descriptor desired by caller
+ *
+ * Reparent resource children of 'parent' that conflict with 'res'
+ * under 'res', and make 'res' replace those children.
+ */
+int reparent_resources(struct resource *parent, struct resource *res)
+{
+	struct resource *p, **pp;
+	struct resource **firstpp = NULL;
+
+	for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
+		if (p->end < res->start)
+			continue;
+		if (res->end < p->start)
+			break;
+		if (p->start < res->start || p->end > res->end)
+			return -ENOTSUPP;	/* not completely contained */
+		if (firstpp == NULL)
+			firstpp = pp;
+	}
+	if (firstpp == NULL)
+		return -ECANCELED; /* didn't find any conflicting entries? */
+	res->parent = parent;
+	res->child = *firstpp;
+	res->sibling = *pp;
+	*firstpp = res;
+	*pp = NULL;
+	for (p = res->child; p != NULL; p = p->sibling) {
+		p->parent = res;
+		pr_debug("PCI: Reparented %s %pR under %s\n",
+			 p->name, p, res->name);
+	}
+	return 0;
+}
+EXPORT_SYMBOL(reparent_resources);
+
 static void __init __reserve_region_with_split(struct resource *root,
 		resource_size_t start, resource_size_t end,
 		const char *name)
-- 
2.13.6

From - Thu Nov 08 21:41:37 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.ports.ppc64.devel
Subject: [PATCH v6 2/4] resource: Use list_head to link sibling resource
Date: Wed,  4 Jul 2018 12:10:36 +0800
Lines: 567
Approved: news@gmane.org
Message-ID: <20180704041038.8190-3-bhe@redhat.com>
References: <20180704041038.8190-1-bhe@redhat.com>
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From - Thu Nov 08 21:41:37 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.ports.ppc64.devel
Subject: [PATCH v6 3/4] resource: add walk_system_ram_res_rev()
Date: Wed,  4 Jul 2018 12:10:37 +0800
Lines: 54
Approved: news@gmane.org
Message-ID: <20180704041038.8190-4-bhe@redhat.com>
References: <20180704041038.8190-1-bhe@redhat.com>
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Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.ports.ppc64.devel
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For kexec_file loading, if kexec_buf.top_down is 'true', the memory which
is used to load kernel/initrd/purgatory is supposed to be allocated from
top to down. This is what we have been doing all along in the old kexec
loading interface and the kexec loading is still default setting in some
distributions. However, the current kexec_file loading interface doesn't
do likt this. The function arch_kexec_walk_mem() it calls ignores checking
kexec_buf.top_down, but calls walk_system_ram_res() directly to go through
all resources of System RAM from bottom to up, to try to find memory region
which can contain the specific kexec buffer, then call locate_mem_hole_callback()
to allocate memory in that found memory region from top to down. This brings
confusion especially when KASLR is widely supported , users have to make clear
why kexec/kdump kernel loading position is different between these two
interfaces in order to exclude unnecessary noises. Hence these two interfaces
need be unified on behaviour.

Here add checking if kexec_buf.top_down is 'true' in arch_kexec_walk_mem(),
if yes, call the newly added walk_system_ram_res_rev() to find memory region
from top to down to load kernel.

Signed-off-by: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Eric Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
Cc: Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Dave Young <dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Cc: Yinghai Lu <yinghai-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
---
 kernel/kexec_file.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index c6a3b6851372..75226c1d08ce 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -518,6 +518,8 @@ int __weak arch_kexec_walk_mem(struct kexec_buf *kbuf,
 					   IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY,
 					   crashk_res.start, crashk_res.end,
 					   kbuf, func);
+	else if (kbuf->top_down)
+		return walk_system_ram_res_rev(0, ULONG_MAX, kbuf, func);
 	else
 		return walk_system_ram_res(0, ULONG_MAX, kbuf, func);
 }
-- 
2.13.6

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To: Andy Shevchenko <andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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On 07/03/18 at 11:57pm, Andy Shevchenko wrote:
> On Tue, Jul 3, 2018 at 5:55 PM, Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> > On 06/12/18 at 05:24pm, Andy Shevchenko wrote:
> >> On Tue, Jun 12, 2018 at 5:20 PM, Andy Shevchenko
> >> <andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> 
> >> > I briefly looked at the code and error codes we have, so, my proposal
> >> > is one of the following
> >>
> >> >  - use -ECANCELED (not the best choice for first occurrence here,
> >> > though I can't find better)
> >>
> >> Actually -ENOTSUPP might suit the first case (although the actual
> >> would be something like -EOVERLAP, which we don't have)
> >
> > Sorry for late reply, and many thanks for your great suggestion.
> >
> 
> > I am fine to use -ENOTSUPP as the first returned value, and -ECANCELED
> > for the 2nd one.
> 
> I have no strong opinion, but I like (slightly better) this approach ^^^

Done, post v6 in this way, many thanks.

> 
> > Or define an enum as you suggested inside the function
> > or in header file.
> 
> >
> > Or use -EBUSY for the first case because existing resource is
> > overlapping but not fully contained by 'res'; and -EINVAL for
> > the 2nd case since didn't find any one resources which is contained by
> > 'res', means we passed in a invalid resource.
> >
> > All is fine to me, I can repost with each of them.
> 
> >> >  - use positive integers (or enum), like
> >> >   #define RES_REPARENTED 0
> >> >   #define RES_OVERLAPPED 1
> >> >   #define RES_NOCONFLICT 2
> 
> -- 
> With Best Regards,
> Andy Shevchenko

From - Thu Nov 08 21:41:37 2018
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Subject: Re: Build regressions/improvements in v4.18-rc3
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To: John David Anglin <dave.anglin@bell.net>,
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John David Anglin <dave.anglin@bell.net> writes:

> On 2018-07-02 9:09 PM, Michael Ellerman wrote:
>> It's GCC 4.6.3. Are you saying that's not supported anymore?
> See <https://gcc.gnu.org/> for supported releases.

Thanks, but I mean "supported by the parisc Linux port".

Allegedly the kernel builds with GCC 3.2:

  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/changes.rst#n32


But in reality each arch has a different minimum version they actually
care about.

cheers


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Helge Deller <deller@gmx.de> writes:

> On 03.07.2018 03:09, Michael Ellerman wrote:
>> Helge Deller <deller@gmx.de> writes:
>> 
>>> On 02.07.2018 16:09, Geert Uytterhoeven wrote:
>>>> On Mon, Jul 2, 2018 at 4:01 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>>>>> JFYI, when comparing v4.18-rc3[1] to v4.18-rc2[3], the summaries are:
>>>> ...
>>>
>>> Both of the following are simply happening because of old compiler which is being used:
>>>
>>>>> [Deleted 26903 lines about "warning: ... [-Wpointer-sign]" on parisc-allmodconfig]
>> 
>> It's GCC 4.6.3. Are you saying that's not supported anymore?
>> 
>> I can update to 8.1.0 if that's more useful.
>
> Yes, please.
> Any version >= 7.2.1 should be better.

OK, done. It's now using 8.1.0 from kernel.org.

Do you want kisskb to email you build failures for parsic in linux-next
and/or Linus' tree?

It only mails when a config goes from working to broken or vice versa,
so shouldn't be too chatty.

cheers


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Subject: [PATCH 01/11] hugetlb: Harmonize hugetlb.h arch specific defines with
 pgtable.h
Date: Wed,  4 Jul 2018 05:51:57 +0000
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asm-generic/hugetlb.h proposes generic implementations of hugetlb
related functions: use __HAVE_ARCH_HUGE* defines in order to make arch
specific implementations of hugetlb functions consistent with pgtable.h
scheme.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm64/include/asm/hugetlb.h | 2 +-
 include/asm-generic/hugetlb.h    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index e73f68569624..3fcf14663dfa 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -81,9 +81,9 @@ extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTE_CLEAR
 extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 			   pte_t *ptep, unsigned long sz);
-#define huge_pte_clear huge_pte_clear
 extern void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
 				 pte_t *ptep, pte_t pte, unsigned long sz);
 #define set_huge_swap_pte_at set_huge_swap_pte_at
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9d0cde8ab716..3da7cff52360 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -32,7 +32,7 @@ static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot)
 	return pte_modify(pte, newprot);
 }
 
-#ifndef huge_pte_clear
+#ifndef __HAVE_ARCH_HUGE_PTE_CLEAR
 static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 		    pte_t *ptep, unsigned long sz)
 {
-- 
2.16.2

From - Thu Nov 08 21:41:37 2018
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Subject: [PATCH 03/11] hugetlb: Introduce generic version of set_huge_pte_at
Date: Wed,  4 Jul 2018 05:51:59 +0000
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arm, ia64, mips, powerpc, sh, x86 architectures use the
same version of set_huge_pte_at, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 6 ------
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 6 ------
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 +++++++-
 10 files changed, 10 insertions(+), 37 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index d4014fbe5ea3..398fb06e8207 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4af1a800a900..874661a1dff1 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -60,6 +60,7 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 				struct page *page, int writable);
 #define arch_make_huge_pte arch_make_huge_pte
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 			    pte_t *ptep, pte_t pte);
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index afe9fa4d969b..a235d6f60fb3 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 53764050243e..8ea439041d5d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,12 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 28c23b68d38d..77c8adbac7c3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -4,6 +4,7 @@
 
 #include <asm/page.h>
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index de46ee16b615..ba7d5d8b543f 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,12 +132,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index f6a51b609409..bc552e37c1c9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 59d89b52ccb7..16b0c53ea6c9 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -12,6 +12,7 @@ struct pud_huge_patch_entry {
 extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 #endif
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 996ce8e15365..554d5614b375 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index c697ca9dda18..ee010b756246 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -47,8 +47,14 @@ static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
 {
 	free_pgd_range(tlb, addr, end, floor, ceiling);
 }
+#endif
 
-
+#ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
+static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		pte_t *ptep, pte_t pte)
+{
+	set_pte_at(mm, addr, ptep, pte);
+}
 #endif
 
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:37 2018
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Subject: [PATCH 05/11] hugetlb: Introduce generic version of huge_ptep_clear_flush
Date: Wed,  4 Jul 2018 05:52:01 +0000
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2811021>

arm, x86 architectures use the same version of
huge_ptep_clear_flush, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 1 +
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 1 +
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index ad36e84b819a..b897541520ef 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 6ae0bcafe162..4c8dd488554d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -71,6 +71,7 @@ extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
 #define __HAVE_ARCH_HUGE_PTE_CLEAR
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 6719c74da0de..41b5f6adeee4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,6 +20,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 0959cc5a41fa..7df1f116a3cc 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -48,6 +48,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 	return pte;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 6e281e1bb336..9afff26747a1 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -32,6 +32,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index ec3e0c2e78f8..de0769f0b5b2 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -143,6 +143,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 #endif
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 08ee6c00b5e9..9abf9c86b769 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,6 +25,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 944e3a4bfaff..651a9593fcee 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 48b8d9b13cc6..8347d5abf882 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline int huge_pte_none(pte_t pte)
 {
 	return pte_none(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 0f6f151780dd..ffa63fd8388d 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -65,4 +65,12 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
+static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
+		unsigned long addr, pte_t *ptep)
+{
+	ptep_clear_flush(vma, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:37 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
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Subject: [PATCH 00/11] hugetlb: Factorize architecture hugetlb primitives
Date: Wed,  4 Jul 2018 05:51:56 +0000
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/660642>

In order to reduce copy/paste of functions across architectures and then
make riscv hugetlb port simpler and smaller, this patchset intends to
factorize the numerous hugetlb primitives that are defined across all the
architectures.

Except for prepare_hugepage_range, this patchset moves the versions that
are just pass-through to standard pte primitives into
asm-generic/hugetlb.h by using the same #ifdef semantic that can be
found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.

s390 architecture has not been tackled in this serie since it does not
use asm-generic/hugetlb.h at all.
powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).

This patchset has been compiled on x86 only.

Alexandre Ghiti (11):
  hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
  hugetlb: Introduce generic version of hugetlb_free_pgd_range
  hugetlb: Introduce generic version of set_huge_pte_at
  hugetlb: Introduce generic version of huge_ptep_get_and_clear
  hugetlb: Introduce generic version of huge_ptep_clear_flush
  hugetlb: Introduce generic version of huge_pte_none
  hugetlb: Introduce generic version of huge_pte_wrprotect
  hugetlb: Introduce generic version of prepare_hugepage_range
  hugetlb: Introduce generic version of huge_ptep_set_wrprotect
  hugetlb: Introduce generic version of huge_ptep_set_access_flags
  hugetlb: Introduce generic version of huge_ptep_get

 arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
 arch/arm/include/asm/hugetlb.h               | 33 +----------
 arch/arm64/include/asm/hugetlb.h             | 39 +++---------
 arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
 arch/mips/include/asm/hugetlb.h              | 40 +++----------
 arch/parisc/include/asm/hugetlb.h            | 33 +++--------
 arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
 arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
 arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
 arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
 arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
 arch/sh/include/asm/hugetlb.h                | 54 ++---------------
 arch/sparc/include/asm/hugetlb.h             | 40 +++----------
 arch/x86/include/asm/hugetlb.h               | 72 +----------------------
 include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
 15 files changed, 143 insertions(+), 384 deletions(-)

-- 
2.16.2

From - Thu Nov 08 21:41:38 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
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Subject: [PATCH 04/11] hugetlb: Introduce generic version of huge_ptep_get_and_clear
Date: Wed,  4 Jul 2018 05:52:00 +0000
Lines: 167
Approved: news@gmane.org
Message-ID: <20180704055207.27978-5-alex@ghiti.fr>
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Xref: news.gmane.org gmane.linux.kernel:2811023 gmane.linux.ports.arm.kernel:660643 gmane.linux.ports.ia64:28875 gmane.linux.ports.mips.general:65228 gmane.linux.ports.parisc:28725 gmane.linux.ports.ppc64.devel:159601 gmane.linux.ports.sh.devel:57137 gmane.linux.ports.sparc:28052 gmane.linux.kernel.cross-arch:44970
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2811023>

arm, ia64, sh, x86 architectures use the
same version of huge_ptep_get_and_clear, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 13 insertions(+), 24 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 398fb06e8207..ad36e84b819a 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -49,12 +49,6 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	ptep_set_wrprotect(mm, addr, ptep);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 874661a1dff1..6ae0bcafe162 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -66,6 +66,7 @@ extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index a235d6f60fb3..6719c74da0de 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 8ea439041d5d..0959cc5a41fa 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,6 +36,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 77c8adbac7c3..6e281e1bb336 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -8,6 +8,7 @@
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index ba7d5d8b543f..ec3e0c2e78f8 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,6 +132,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index bc552e37c1c9..08ee6c00b5e9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 16b0c53ea6c9..944e3a4bfaff 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -16,6 +16,7 @@ extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 554d5614b375..48b8d9b13cc6 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ee010b756246..0f6f151780dd 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -57,4 +57,12 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+		unsigned long addr, pte_t *ptep)
+{
+	return ptep_get_and_clear(mm, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 02/11] hugetlb: Introduce generic version of
 hugetlb_free_pgd_range
Date: Wed,  4 Jul 2018 05:51:58 +0000
Lines: 305
Approved: news@gmane.org
Message-ID: <20180704055207.27978-3-alex@ghiti.fr>
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/660644>

arm, arm64, mips, parisc, sh, x86 architectures use the
same version of hugetlb_free_pgd_range, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb.h     | 12 ++----------
 arch/arm64/include/asm/hugetlb.h   | 10 ----------
 arch/ia64/include/asm/hugetlb.h    |  5 +++--
 arch/mips/include/asm/hugetlb.h    | 13 ++-----------
 arch/parisc/include/asm/hugetlb.h  | 12 ++----------
 arch/powerpc/include/asm/hugetlb.h |  4 +++-
 arch/sh/include/asm/hugetlb.h      | 12 ++----------
 arch/sparc/include/asm/hugetlb.h   |  4 +++-
 arch/x86/include/asm/hugetlb.h     | 11 ++---------
 include/asm-generic/hugetlb.h      | 11 +++++++++++
 10 files changed, 30 insertions(+), 64 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 7d26f6c4f0f5..047b893ef95d 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -23,19 +23,9 @@
 #define _ASM_ARM_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #include <asm/hugetlb-3level.h>
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
@@ -68,4 +58,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 	clear_bit(PG_dcache_clean, &page->flags);
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_ARM_HUGETLB_H */
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3fcf14663dfa..4af1a800a900 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -25,16 +25,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return READ_ONCE(*ptep);
 }
 
-
-
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 74d2a5540aaf..afe9fa4d969b 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -3,9 +3,8 @@
 #define _ASM_IA64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -70,4 +69,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_IA64_HUGETLB_H */
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 982bc0685330..53764050243e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -10,8 +10,6 @@
 #define __ASM_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -38,15 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr,
-					  unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -114,4 +103,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* __ASM_HUGETLB_H */
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 58e0f4620426..28c23b68d38d 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -3,8 +3,6 @@
 #define _ASM_PARISC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
@@ -32,14 +30,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
@@ -71,4 +61,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_PARISC64_HUGETLB_H */
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 3225eb6402cc..de46ee16b615 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -4,7 +4,6 @@
 
 #ifdef CONFIG_HUGETLB_PAGE
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 extern struct kmem_cache *hugepte_cache;
 
@@ -113,6 +112,7 @@ static inline void flush_hugetlb_page(struct vm_area_struct *vma,
 void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
 #endif
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -193,4 +193,6 @@ static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr,
 }
 #endif /* CONFIG_HUGETLB_PAGE */
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_POWERPC_HUGETLB_H */
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 735939c0f513..f6a51b609409 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -4,8 +4,6 @@
 
 #include <asm/cacheflush.h>
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -27,14 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -85,4 +75,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 	clear_bit(PG_dcache_clean, &page->flags);
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SH_HUGETLB_H */
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 300557c66698..59d89b52ccb7 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
 #define _ASM_SPARC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #ifdef CONFIG_HUGETLB_PAGE
 struct pud_huge_patch_entry {
@@ -84,8 +83,11 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SPARC64_HUGETLB_H */
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 5ed826da5e07..996ce8e15365 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
 #define _ASM_X86_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE)
 
@@ -28,14 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -90,4 +81,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 static inline bool gigantic_page_supported(void) { return true; }
 #endif
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_X86_HUGETLB_H */
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 3da7cff52360..c697ca9dda18 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -40,4 +40,15 @@ static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
+		unsigned long addr, unsigned long end,
+		unsigned long floor, unsigned long ceiling)
+{
+	free_pgd_range(tlb, addr, end, floor, ceiling);
+}
+
+
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2

From - Thu Nov 08 21:41:38 2018
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X-Mozilla-Keys:                                                                                 
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 05/11] hugetlb: Introduce generic version of
 huge_ptep_clear_flush
Date: Wed, 4 Jul 2018 08:51:43 +0200
Lines: 161
Approved: news@gmane.org
Message-ID: <6f468be6-6d6b-407a-eb3d-8d1fa7d3673e@ghiti.fr>
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Just discovered my email provider limit of mails per minute, please drop 
this serie, I'll send a v2 using --batch-size option of git send-email. 
Sorry about that.


On 07/04/2018 07:52 AM, Alexandre Ghiti wrote:
> arm, x86 architectures use the same version of
> huge_ptep_clear_flush, so move this generic implementation into
> asm-generic/hugetlb.h.
>
> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>   arch/arm/include/asm/hugetlb-3level.h | 6 ------
>   arch/arm64/include/asm/hugetlb.h      | 1 +
>   arch/ia64/include/asm/hugetlb.h       | 1 +
>   arch/mips/include/asm/hugetlb.h       | 1 +
>   arch/parisc/include/asm/hugetlb.h     | 1 +
>   arch/powerpc/include/asm/hugetlb.h    | 1 +
>   arch/sh/include/asm/hugetlb.h         | 1 +
>   arch/sparc/include/asm/hugetlb.h      | 1 +
>   arch/x86/include/asm/hugetlb.h        | 6 ------
>   include/asm-generic/hugetlb.h         | 8 ++++++++
>   10 files changed, 15 insertions(+), 12 deletions(-)
>
> diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
> index ad36e84b819a..b897541520ef 100644
> --- a/arch/arm/include/asm/hugetlb-3level.h
> +++ b/arch/arm/include/asm/hugetlb-3level.h
> @@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
>   	return retval;
>   }
>   
> -static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> -					 unsigned long addr, pte_t *ptep)
> -{
> -	ptep_clear_flush(vma, addr, ptep);
> -}
> -
>   static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>   					   unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 6ae0bcafe162..4c8dd488554d 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -71,6 +71,7 @@ extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>   				     unsigned long addr, pte_t *ptep);
>   extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
>   				    unsigned long addr, pte_t *ptep);
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   				  unsigned long addr, pte_t *ptep);
>   #define __HAVE_ARCH_HUGE_PTE_CLEAR
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index 6719c74da0de..41b5f6adeee4 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -20,6 +20,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>   		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
>   }
>   
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   					 unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 0959cc5a41fa..7df1f116a3cc 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -48,6 +48,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>   	return pte;
>   }
>   
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   					 unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index 6e281e1bb336..9afff26747a1 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -32,6 +32,7 @@ static inline int prepare_hugepage_range(struct file *file,
>   	return 0;
>   }
>   
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   					 unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index ec3e0c2e78f8..de0769f0b5b2 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -143,6 +143,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>   #endif
>   }
>   
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   					 unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index 08ee6c00b5e9..9abf9c86b769 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -25,6 +25,7 @@ static inline int prepare_hugepage_range(struct file *file,
>   	return 0;
>   }
>   
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   					 unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 944e3a4bfaff..651a9593fcee 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -42,6 +42,7 @@ static inline int prepare_hugepage_range(struct file *file,
>   	return 0;
>   }
>   
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   					 unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index 48b8d9b13cc6..8347d5abf882 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
>   	return 0;
>   }
>   
> -static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> -					 unsigned long addr, pte_t *ptep)
> -{
> -	ptep_clear_flush(vma, addr, ptep);
> -}
> -
>   static inline int huge_pte_none(pte_t pte)
>   {
>   	return pte_none(pte);
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index 0f6f151780dd..ffa63fd8388d 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -65,4 +65,12 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>   }
>   #endif
>   
> +#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
> +static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> +		unsigned long addr, pte_t *ptep)
> +{
> +	ptep_clear_flush(vma, addr, ptep);
> +}
> +#endif
> +
>   #endif /* _ASM_GENERIC_HUGETLB_H */



From - Thu Nov 08 21:41:38 2018
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From: Andy Shevchenko <andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v6 1/4] resource: Move reparent_resources() to
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Cc: Nicolas Pitre <nicolas.pitre-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, brijesh.singh-5C7GfCeVMHo@public.gmane.org,
 devicetree <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, David Airlie <airlied-cv59FeDIM0c@public.gmane.org>,
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To: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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On Wed, Jul 4, 2018 at 7:10 AM, Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> reparent_resources() is duplicated in arch/microblaze/pci/pci-common.c
> and arch/powerpc/kernel/pci-common.c, so move it to kernel/resource.c
> so that it's shared.

With couple of comments below,

Reviewed-by: Andy Shevchenko <andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

P.S. In some commit message in this series you used 'likt' instead of 'like'.

>
> Signed-off-by: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> ---
>  arch/microblaze/pci/pci-common.c | 37 -------------------------------------
>  arch/powerpc/kernel/pci-common.c | 35 -----------------------------------
>  include/linux/ioport.h           |  1 +
>  kernel/resource.c                | 39 +++++++++++++++++++++++++++++++++++++++
>  4 files changed, 40 insertions(+), 72 deletions(-)
>
> diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
> index f34346d56095..7899bafab064 100644
> --- a/arch/microblaze/pci/pci-common.c
> +++ b/arch/microblaze/pci/pci-common.c
> @@ -619,43 +619,6 @@ int pcibios_add_device(struct pci_dev *dev)
>  EXPORT_SYMBOL(pcibios_add_device);
>
>  /*
> - * Reparent resource children of pr that conflict with res
> - * under res, and make res replace those children.
> - */
> -static int __init reparent_resources(struct resource *parent,
> -                                    struct resource *res)
> -{
> -       struct resource *p, **pp;
> -       struct resource **firstpp = NULL;
> -
> -       for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
> -               if (p->end < res->start)
> -                       continue;
> -               if (res->end < p->start)
> -                       break;
> -               if (p->start < res->start || p->end > res->end)
> -                       return -1;      /* not completely contained */
> -               if (firstpp == NULL)
> -                       firstpp = pp;
> -       }
> -       if (firstpp == NULL)
> -               return -1;      /* didn't find any conflicting entries? */
> -       res->parent = parent;
> -       res->child = *firstpp;
> -       res->sibling = *pp;
> -       *firstpp = res;
> -       *pp = NULL;
> -       for (p = res->child; p != NULL; p = p->sibling) {
> -               p->parent = res;
> -               pr_debug("PCI: Reparented %s [%llx..%llx] under %s\n",
> -                        p->name,
> -                        (unsigned long long)p->start,
> -                        (unsigned long long)p->end, res->name);
> -       }
> -       return 0;
> -}
> -
> -/*
>   *  Handle resources of PCI devices.  If the world were perfect, we could
>   *  just allocate all the resource regions and do nothing more.  It isn't.
>   *  On the other hand, we cannot just re-allocate all devices, as it would
> diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
> index fe9733ffffaa..926035bb378d 100644
> --- a/arch/powerpc/kernel/pci-common.c
> +++ b/arch/powerpc/kernel/pci-common.c
> @@ -1088,41 +1088,6 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
>  EXPORT_SYMBOL(pcibios_align_resource);
>
>  /*
> - * Reparent resource children of pr that conflict with res
> - * under res, and make res replace those children.
> - */
> -static int reparent_resources(struct resource *parent,
> -                                    struct resource *res)
> -{
> -       struct resource *p, **pp;
> -       struct resource **firstpp = NULL;
> -
> -       for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
> -               if (p->end < res->start)
> -                       continue;
> -               if (res->end < p->start)
> -                       break;
> -               if (p->start < res->start || p->end > res->end)
> -                       return -1;      /* not completely contained */
> -               if (firstpp == NULL)
> -                       firstpp = pp;
> -       }
> -       if (firstpp == NULL)
> -               return -1;      /* didn't find any conflicting entries? */
> -       res->parent = parent;
> -       res->child = *firstpp;
> -       res->sibling = *pp;
> -       *firstpp = res;
> -       *pp = NULL;
> -       for (p = res->child; p != NULL; p = p->sibling) {
> -               p->parent = res;
> -               pr_debug("PCI: Reparented %s %pR under %s\n",
> -                        p->name, p, res->name);
> -       }
> -       return 0;
> -}
> -
> -/*
>   *  Handle resources of PCI devices.  If the world were perfect, we could
>   *  just allocate all the resource regions and do nothing more.  It isn't.
>   *  On the other hand, we cannot just re-allocate all devices, as it would
> diff --git a/include/linux/ioport.h b/include/linux/ioport.h
> index da0ebaec25f0..dfdcd0bfe54e 100644
> --- a/include/linux/ioport.h
> +++ b/include/linux/ioport.h
> @@ -192,6 +192,7 @@ extern int allocate_resource(struct resource *root, struct resource *new,
>  struct resource *lookup_resource(struct resource *root, resource_size_t start);
>  int adjust_resource(struct resource *res, resource_size_t start,
>                     resource_size_t size);
> +int reparent_resources(struct resource *parent, struct resource *res);
>  resource_size_t resource_alignment(struct resource *res);
>  static inline resource_size_t resource_size(const struct resource *res)
>  {
> diff --git a/kernel/resource.c b/kernel/resource.c
> index 30e1bc68503b..d1cbf4b50e17 100644
> --- a/kernel/resource.c
> +++ b/kernel/resource.c
> @@ -983,6 +983,45 @@ int adjust_resource(struct resource *res, resource_size_t start,
>  }
>  EXPORT_SYMBOL(adjust_resource);
>
> +/*

/** ?

> + * reparent_resources - reparent resource children of parent that res covers
> + * @parent: parent resource descriptor
> + * @res: resource descriptor desired by caller
> + *
> + * Reparent resource children of 'parent' that conflict with 'res'
> + * under 'res', and make 'res' replace those children.

Describe error codes, please.

> + */
> +int reparent_resources(struct resource *parent, struct resource *res)
> +{
> +       struct resource *p, **pp;
> +       struct resource **firstpp = NULL;
> +
> +       for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
> +               if (p->end < res->start)
> +                       continue;
> +               if (res->end < p->start)
> +                       break;
> +               if (p->start < res->start || p->end > res->end)
> +                       return -ENOTSUPP;       /* not completely contained */
> +               if (firstpp == NULL)
> +                       firstpp = pp;
> +       }
> +       if (firstpp == NULL)
> +               return -ECANCELED; /* didn't find any conflicting entries? */
> +       res->parent = parent;
> +       res->child = *firstpp;
> +       res->sibling = *pp;
> +       *firstpp = res;
> +       *pp = NULL;
> +       for (p = res->child; p != NULL; p = p->sibling) {
> +               p->parent = res;
> +               pr_debug("PCI: Reparented %s %pR under %s\n",
> +                        p->name, p, res->name);
> +       }
> +       return 0;
> +}
> +EXPORT_SYMBOL(reparent_resources);
> +
>  static void __init __reserve_region_with_split(struct resource *root,
>                 resource_size_t start, resource_size_t end,
>                 const char *name)
> --
> 2.13.6
>



-- 
With Best Regards,
Andy Shevchenko

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Archived-At: <http://permalink.gmane.org/gmane.linux.hardware.nvdimm/10643>

Hi Baoquan,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.18-rc3 next-20180704]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180704-121402
config: ia64-allnoconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 8.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=8.1.0 make.cross ARCH=ia64 

All errors (new ones prefixed by >>):

   arch/ia64/sn/kernel/io_init.c: In function 'sn_io_slot_fixup':
>> arch/ia64/sn/kernel/io_init.c:195:19: error: invalid operands to binary && (have 'int' and 'struct list_head')
      if (res->parent && res->parent->child)
          ~~~~~~~~~~~ ^~ ~~~~~~~~~~~~~~~~~~

vim +195 arch/ia64/sn/kernel/io_init.c

^1da177e Linus Torvalds  2005-04-16  142  
3ec829b6 John Keller     2005-11-29  143  /*
6f09a925 John Keller     2007-01-30  144   * sn_io_slot_fixup() -   We are not running with an ACPI capable PROM,
8ea6091f John Keller     2006-10-04  145   *			  and need to convert the pci_dev->resource
8ea6091f John Keller     2006-10-04  146   *			  'start' and 'end' addresses to mapped addresses,
8ea6091f John Keller     2006-10-04  147   *			  and setup the pci_controller->window array entries.
^1da177e Linus Torvalds  2005-04-16  148   */
8ea6091f John Keller     2006-10-04  149  void
6f09a925 John Keller     2007-01-30  150  sn_io_slot_fixup(struct pci_dev *dev)
^1da177e Linus Torvalds  2005-04-16  151  {
^1da177e Linus Torvalds  2005-04-16  152  	int idx;
ab97b8cc Bjorn Helgaas   2016-03-02  153  	struct resource *res;
18c25526 Matt Fleming    2016-05-04  154  	unsigned long size;
6f09a925 John Keller     2007-01-30  155  	struct pcidev_info *pcidev_info;
6f09a925 John Keller     2007-01-30  156  	struct sn_irq_info *sn_irq_info;
6f09a925 John Keller     2007-01-30  157  	int status;
6f09a925 John Keller     2007-01-30  158  
6f09a925 John Keller     2007-01-30  159  	pcidev_info = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL);
6f09a925 John Keller     2007-01-30  160  	if (!pcidev_info)
d4ed8084 Harvey Harrison 2008-03-04  161  		panic("%s: Unable to alloc memory for pcidev_info", __func__);
6f09a925 John Keller     2007-01-30  162  
6f09a925 John Keller     2007-01-30  163  	sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
6f09a925 John Keller     2007-01-30  164  	if (!sn_irq_info)
d4ed8084 Harvey Harrison 2008-03-04  165  		panic("%s: Unable to alloc memory for sn_irq_info", __func__);
6f09a925 John Keller     2007-01-30  166  
6f09a925 John Keller     2007-01-30  167  	/* Call to retrieve pci device information needed by kernel. */
6f09a925 John Keller     2007-01-30  168  	status = sal_get_pcidev_info((u64) pci_domain_nr(dev),
6f09a925 John Keller     2007-01-30  169  		(u64) dev->bus->number,
6f09a925 John Keller     2007-01-30  170  		dev->devfn,
6f09a925 John Keller     2007-01-30  171  		(u64) __pa(pcidev_info),
6f09a925 John Keller     2007-01-30  172  		(u64) __pa(sn_irq_info));
6f09a925 John Keller     2007-01-30  173  
80a03e29 Stoyan Gaydarov 2009-03-10  174  	BUG_ON(status); /* Cannot get platform pci device information */
6f09a925 John Keller     2007-01-30  175  
3ec829b6 John Keller     2005-11-29  176  
^1da177e Linus Torvalds  2005-04-16  177  	/* Copy over PIO Mapped Addresses */
^1da177e Linus Torvalds  2005-04-16  178  	for (idx = 0; idx <= PCI_ROM_RESOURCE; idx++) {
ab97b8cc Bjorn Helgaas   2016-03-02  179  		if (!pcidev_info->pdi_pio_mapped_addr[idx])
^1da177e Linus Torvalds  2005-04-16  180  			continue;
^1da177e Linus Torvalds  2005-04-16  181  
ab97b8cc Bjorn Helgaas   2016-03-02  182  		res = &dev->resource[idx];
ab97b8cc Bjorn Helgaas   2016-03-02  183  
ab97b8cc Bjorn Helgaas   2016-03-02  184  		size = res->end - res->start;
ab97b8cc Bjorn Helgaas   2016-03-02  185  		if (size == 0)
3ec829b6 John Keller     2005-11-29  186  			continue;
ab97b8cc Bjorn Helgaas   2016-03-02  187  
240504ad Bjorn Helgaas   2016-03-02  188  		res->start = pcidev_info->pdi_pio_mapped_addr[idx];
18c25526 Matt Fleming    2016-05-04  189  		res->end = res->start + size;
64715725 Bernhard Walle  2007-03-18  190  
64715725 Bernhard Walle  2007-03-18  191  		/*
64715725 Bernhard Walle  2007-03-18  192  		 * if it's already in the device structure, remove it before
64715725 Bernhard Walle  2007-03-18  193  		 * inserting
64715725 Bernhard Walle  2007-03-18  194  		 */
ab97b8cc Bjorn Helgaas   2016-03-02 @195  		if (res->parent && res->parent->child)
ab97b8cc Bjorn Helgaas   2016-03-02  196  			release_resource(res);
64715725 Bernhard Walle  2007-03-18  197  
ab97b8cc Bjorn Helgaas   2016-03-02  198  		if (res->flags & IORESOURCE_IO)
ab97b8cc Bjorn Helgaas   2016-03-02  199  			insert_resource(&ioport_resource, res);
^1da177e Linus Torvalds  2005-04-16  200  		else
ab97b8cc Bjorn Helgaas   2016-03-02  201  			insert_resource(&iomem_resource, res);
d7ad2254 John Keller     2007-07-09  202  		/*
240504ad Bjorn Helgaas   2016-03-02  203  		 * If ROM, mark as shadowed in PROM.
d7ad2254 John Keller     2007-07-09  204  		 */
d7ad2254 John Keller     2007-07-09  205  		if (idx == PCI_ROM_RESOURCE) {
240504ad Bjorn Helgaas   2016-03-02  206  			pci_disable_rom(dev);
240504ad Bjorn Helgaas   2016-03-02  207  			res->flags = IORESOURCE_MEM | IORESOURCE_ROM_SHADOW |
240504ad Bjorn Helgaas   2016-03-02  208  				     IORESOURCE_PCI_FIXED;
d7ad2254 John Keller     2007-07-09  209  		}
^1da177e Linus Torvalds  2005-04-16  210  	}
6f09a925 John Keller     2007-01-30  211  
6f09a925 John Keller     2007-01-30  212  	sn_pci_fixup_slot(dev, pcidev_info, sn_irq_info);
^1da177e Linus Torvalds  2005-04-16  213  }
6f09a925 John Keller     2007-01-30  214  EXPORT_SYMBOL(sn_io_slot_fixup);
6f09a925 John Keller     2007-01-30  215  

:::::: The code at line 195 was first introduced by commit
:::::: ab97b8cc560eabfd8139dd97924a09e46a3c9632 ia64/PCI: Use temporary struct resource * to avoid repetition

:::::: TO: Bjorn Helgaas <bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
:::::: CC: Bjorn Helgaas <bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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--5vNYLRcllDrimb99
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Hi Baoquan,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.18-rc3 next-20180704]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180704-121402
config: mips-rb532_defconfig (attached as .config)
compiler: mipsel-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=mips 

All error/warnings (new ones prefixed by >>):

>> arch/mips/pci/pci-rc32434.c:57:11: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
     .child = &rc32434_res_pci_mem2
              ^
   arch/mips/pci/pci-rc32434.c:57:11: note: (near initialization for 'rc32434_res_pci_mem1.child.next')
>> arch/mips/pci/pci-rc32434.c:51:47: warning: missing braces around initializer [-Wmissing-braces]
    static struct resource rc32434_res_pci_mem1 = {
                                                  ^
   arch/mips/pci/pci-rc32434.c:60:47: warning: missing braces around initializer [-Wmissing-braces]
    static struct resource rc32434_res_pci_mem2 = {
                                                  ^
   cc1: some warnings being treated as errors

vim +57 arch/mips/pci/pci-rc32434.c

73b4390f Ralf Baechle 2008-07-16  50  
73b4390f Ralf Baechle 2008-07-16 @51  static struct resource rc32434_res_pci_mem1 = {
73b4390f Ralf Baechle 2008-07-16  52  	.name = "PCI MEM1",
73b4390f Ralf Baechle 2008-07-16  53  	.start = 0x50000000,
73b4390f Ralf Baechle 2008-07-16  54  	.end = 0x5FFFFFFF,
73b4390f Ralf Baechle 2008-07-16  55  	.flags = IORESOURCE_MEM,
73b4390f Ralf Baechle 2008-07-16  56  	.sibling = NULL,
73b4390f Ralf Baechle 2008-07-16 @57  	.child = &rc32434_res_pci_mem2
73b4390f Ralf Baechle 2008-07-16  58  };
73b4390f Ralf Baechle 2008-07-16  59  

:::::: The code at line 57 was first introduced by commit
:::::: 73b4390fb23456964201abda79f1210fe337d01a [MIPS] Routerboard 532: Support for base system

:::::: TO: Ralf Baechle <ralf@linux-mips.org>
:::::: CC: Ralf Baechle <ralf@linux-mips.org>

---
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--5vNYLRcllDrimb99--


From - Thu Nov 08 21:41:38 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 00/11] hugetlb: Factorize architecture hugetlb primitives
Date: Thu,  5 Jul 2018 04:58:36 +0000
Lines: 50
Approved: news@gmane.org
Message-ID: <20180705045847.32575-1-alex@ghiti.fr>
NNTP-Posting-Host: blaine.gmane.org
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
        jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org,
        paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp,
        dalias@libc.org, davem@davemloft.net, tglx@linutronix.de,
        mingo@redhat.com, hpa@zytor.com, x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812016>

In order to reduce copy/paste of functions across architectures and then
make riscv hugetlb port (and future ports) simpler and smaller, this patchset
intends to factorize the numerous hugetlb primitives that are defined across all
the architectures.

Except for prepare_hugepage_range, this patchset moves the versions that
are just pass-through to standard pte primitives into
asm-generic/hugetlb.h by using the same #ifdef semantic that can be
found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.

s390 architecture has not been tackled in this serie since it does not
use asm-generic/hugetlb.h at all.
powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).

This patchset has been compiled on x86 only.

Alexandre Ghiti (11):
  hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
  hugetlb: Introduce generic version of hugetlb_free_pgd_range
  hugetlb: Introduce generic version of set_huge_pte_at
  hugetlb: Introduce generic version of huge_ptep_get_and_clear
  hugetlb: Introduce generic version of huge_ptep_clear_flush
  hugetlb: Introduce generic version of huge_pte_none
  hugetlb: Introduce generic version of huge_pte_wrprotect
  hugetlb: Introduce generic version of prepare_hugepage_range
  hugetlb: Introduce generic version of huge_ptep_set_wrprotect
  hugetlb: Introduce generic version of huge_ptep_set_access_flags
  hugetlb: Introduce generic version of huge_ptep_get

 arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
 arch/arm/include/asm/hugetlb.h               | 33 +----------
 arch/arm64/include/asm/hugetlb.h             | 39 +++---------
 arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
 arch/mips/include/asm/hugetlb.h              | 40 +++----------
 arch/parisc/include/asm/hugetlb.h            | 33 +++--------
 arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
 arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
 arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
 arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
 arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
 arch/sh/include/asm/hugetlb.h                | 54 ++---------------
 arch/sparc/include/asm/hugetlb.h             | 40 +++----------
 arch/x86/include/asm/hugetlb.h               | 72 +----------------------
 include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
 15 files changed, 143 insertions(+), 384 deletions(-)

-- 
2.16.2



From - Thu Nov 08 21:41:38 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 01/11] hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
Date: Thu,  5 Jul 2018 04:58:37 +0000
Lines: 43
Approved: news@gmane.org
Message-ID: <20180705045847.32575-2-alex@ghiti.fr>
References: <20180705045847.32575-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
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asm-generic/hugetlb.h proposes generic implementations of hugetlb
related functions: use __HAVE_ARCH_HUGE* defines in order to make arch
specific implementations of hugetlb functions consistent with pgtable.h
scheme.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm64/include/asm/hugetlb.h | 2 +-
 include/asm-generic/hugetlb.h    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index e73f68569624..3fcf14663dfa 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -81,9 +81,9 @@ extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTE_CLEAR
 extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 			   pte_t *ptep, unsigned long sz);
-#define huge_pte_clear huge_pte_clear
 extern void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
 				 pte_t *ptep, pte_t pte, unsigned long sz);
 #define set_huge_swap_pte_at set_huge_swap_pte_at
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9d0cde8ab716..3da7cff52360 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -32,7 +32,7 @@ static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot)
 	return pte_modify(pte, newprot);
 }
 
-#ifndef huge_pte_clear
+#ifndef __HAVE_ARCH_HUGE_PTE_CLEAR
 static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 		    pte_t *ptep, unsigned long sz)
 {
-- 
2.16.2



From - Thu Nov 08 21:41:38 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 02/11] hugetlb: Introduce generic version of hugetlb_free_pgd_range
Date: Thu,  5 Jul 2018 04:58:38 +0000
Lines: 307
Approved: news@gmane.org
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        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812018>

arm, arm64, mips, parisc, sh, x86 architectures use the
same version of hugetlb_free_pgd_range, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb.h     | 12 ++----------
 arch/arm64/include/asm/hugetlb.h   | 10 ----------
 arch/ia64/include/asm/hugetlb.h    |  5 +++--
 arch/mips/include/asm/hugetlb.h    | 13 ++-----------
 arch/parisc/include/asm/hugetlb.h  | 12 ++----------
 arch/powerpc/include/asm/hugetlb.h |  4 +++-
 arch/sh/include/asm/hugetlb.h      | 12 ++----------
 arch/sparc/include/asm/hugetlb.h   |  4 +++-
 arch/x86/include/asm/hugetlb.h     | 11 ++---------
 include/asm-generic/hugetlb.h      | 11 +++++++++++
 10 files changed, 30 insertions(+), 64 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 7d26f6c4f0f5..047b893ef95d 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -23,19 +23,9 @@
 #define _ASM_ARM_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #include <asm/hugetlb-3level.h>
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
@@ -68,4 +58,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 	clear_bit(PG_dcache_clean, &page->flags);
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_ARM_HUGETLB_H */
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3fcf14663dfa..4af1a800a900 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -25,16 +25,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return READ_ONCE(*ptep);
 }
 
-
-
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 74d2a5540aaf..afe9fa4d969b 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -3,9 +3,8 @@
 #define _ASM_IA64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -70,4 +69,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_IA64_HUGETLB_H */
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 982bc0685330..53764050243e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -10,8 +10,6 @@
 #define __ASM_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -38,15 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr,
-					  unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -114,4 +103,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* __ASM_HUGETLB_H */
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 58e0f4620426..28c23b68d38d 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -3,8 +3,6 @@
 #define _ASM_PARISC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
@@ -32,14 +30,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
@@ -71,4 +61,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_PARISC64_HUGETLB_H */
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 3225eb6402cc..de46ee16b615 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -4,7 +4,6 @@
 
 #ifdef CONFIG_HUGETLB_PAGE
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 extern struct kmem_cache *hugepte_cache;
 
@@ -113,6 +112,7 @@ static inline void flush_hugetlb_page(struct vm_area_struct *vma,
 void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
 #endif
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -193,4 +193,6 @@ static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr,
 }
 #endif /* CONFIG_HUGETLB_PAGE */
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_POWERPC_HUGETLB_H */
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 735939c0f513..f6a51b609409 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -4,8 +4,6 @@
 
 #include <asm/cacheflush.h>
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -27,14 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -85,4 +75,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 	clear_bit(PG_dcache_clean, &page->flags);
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SH_HUGETLB_H */
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 300557c66698..59d89b52ccb7 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
 #define _ASM_SPARC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #ifdef CONFIG_HUGETLB_PAGE
 struct pud_huge_patch_entry {
@@ -84,8 +83,11 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SPARC64_HUGETLB_H */
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 5ed826da5e07..996ce8e15365 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
 #define _ASM_X86_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE)
 
@@ -28,14 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -90,4 +81,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 static inline bool gigantic_page_supported(void) { return true; }
 #endif
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_X86_HUGETLB_H */
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 3da7cff52360..c697ca9dda18 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -40,4 +40,15 @@ static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
+		unsigned long addr, unsigned long end,
+		unsigned long floor, unsigned long ceiling)
+{
+	free_pgd_range(tlb, addr, end, floor, ceiling);
+}
+
+
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:38 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 03/11] hugetlb: Introduce generic version of set_huge_pte_at
Date: Thu,  5 Jul 2018 04:58:39 +0000
Lines: 180
Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.kernel:2812019 gmane.linux.ports.arm.kernel:660911 gmane.linux.ports.ia64:28883 gmane.linux.ports.mips.general:65243 gmane.linux.ports.parisc:28734 gmane.linux.ports.ppc64.devel:159666 gmane.linux.ports.sh.devel:57156 gmane.linux.ports.sparc:28058 gmane.linux.kernel.cross-arch:45003
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812019>

arm, ia64, mips, powerpc, sh, x86 architectures use the
same version of set_huge_pte_at, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 6 ------
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 6 ------
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 +++++++-
 10 files changed, 10 insertions(+), 37 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index d4014fbe5ea3..398fb06e8207 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4af1a800a900..874661a1dff1 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -60,6 +60,7 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 				struct page *page, int writable);
 #define arch_make_huge_pte arch_make_huge_pte
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 			    pte_t *ptep, pte_t pte);
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index afe9fa4d969b..a235d6f60fb3 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 53764050243e..8ea439041d5d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,12 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 28c23b68d38d..77c8adbac7c3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -4,6 +4,7 @@
 
 #include <asm/page.h>
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index de46ee16b615..ba7d5d8b543f 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,12 +132,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index f6a51b609409..bc552e37c1c9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 59d89b52ccb7..16b0c53ea6c9 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -12,6 +12,7 @@ struct pud_huge_patch_entry {
 extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 #endif
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 996ce8e15365..554d5614b375 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index c697ca9dda18..ee010b756246 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -47,8 +47,14 @@ static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
 {
 	free_pgd_range(tlb, addr, end, floor, ceiling);
 }
+#endif
 
-
+#ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
+static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		pte_t *ptep, pte_t pte)
+{
+	set_pte_at(mm, addr, ptep, pte);
+}
 #endif
 
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:38 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 04/11] hugetlb: Introduce generic version of huge_ptep_get_and_clear
Date: Thu,  5 Jul 2018 04:58:40 +0000
Lines: 167
Approved: news@gmane.org
Message-ID: <20180705045847.32575-5-alex@ghiti.fr>
References: <20180705045847.32575-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
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Xref: news.gmane.org gmane.linux.kernel:2812020 gmane.linux.ports.arm.kernel:660912 gmane.linux.ports.ia64:28884 gmane.linux.ports.mips.general:65244 gmane.linux.ports.parisc:28735 gmane.linux.ports.ppc64.devel:159667 gmane.linux.ports.sh.devel:57157 gmane.linux.ports.sparc:28059 gmane.linux.kernel.cross-arch:45004
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812020>

arm, ia64, sh, x86 architectures use the
same version of huge_ptep_get_and_clear, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 13 insertions(+), 24 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 398fb06e8207..ad36e84b819a 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -49,12 +49,6 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	ptep_set_wrprotect(mm, addr, ptep);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 874661a1dff1..6ae0bcafe162 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -66,6 +66,7 @@ extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index a235d6f60fb3..6719c74da0de 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 8ea439041d5d..0959cc5a41fa 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,6 +36,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 77c8adbac7c3..6e281e1bb336 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -8,6 +8,7 @@
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index ba7d5d8b543f..ec3e0c2e78f8 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,6 +132,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index bc552e37c1c9..08ee6c00b5e9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 16b0c53ea6c9..944e3a4bfaff 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -16,6 +16,7 @@ extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 554d5614b375..48b8d9b13cc6 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ee010b756246..0f6f151780dd 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -57,4 +57,12 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+		unsigned long addr, pte_t *ptep)
+{
+	return ptep_get_and_clear(mm, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:38 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH 05/11] hugetlb: Introduce generic version of huge_ptep_clear_flush
Date: Thu,  5 Jul 2018 04:58:41 +0000
Lines: 157
Approved: news@gmane.org
Message-ID: <20180705045847.32575-6-alex@ghiti.fr>
References: <20180705045847.32575-1-alex@ghiti.fr>
NNTP-Posting-Host: blaine.gmane.org
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
        jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org,
        paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp,
        dalias@libc.org, davem@davemloft.net, tglx@linutronix.de,
        mingo@redhat.com, hpa@zytor.com, x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
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Xref: news.gmane.org gmane.linux.kernel:2812021 gmane.linux.ports.arm.kernel:660913 gmane.linux.ports.ia64:28885 gmane.linux.ports.mips.general:65245 gmane.linux.ports.parisc:28736 gmane.linux.ports.ppc64.devel:159668 gmane.linux.ports.sh.devel:57158 gmane.linux.ports.sparc:28060 gmane.linux.kernel.cross-arch:45005
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812021>

arm, x86 architectures use the same version of
huge_ptep_clear_flush, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 1 +
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 1 +
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index ad36e84b819a..b897541520ef 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 6ae0bcafe162..4c8dd488554d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -71,6 +71,7 @@ extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
 #define __HAVE_ARCH_HUGE_PTE_CLEAR
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 6719c74da0de..41b5f6adeee4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,6 +20,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 0959cc5a41fa..7df1f116a3cc 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -48,6 +48,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 	return pte;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 6e281e1bb336..9afff26747a1 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -32,6 +32,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index ec3e0c2e78f8..de0769f0b5b2 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -143,6 +143,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 #endif
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 08ee6c00b5e9..9abf9c86b769 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,6 +25,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 944e3a4bfaff..651a9593fcee 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 48b8d9b13cc6..8347d5abf882 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline int huge_pte_none(pte_t pte)
 {
 	return pte_none(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 0f6f151780dd..ffa63fd8388d 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -65,4 +65,12 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
+static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
+		unsigned long addr, pte_t *ptep)
+{
+	ptep_clear_flush(vma, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:38 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 00/11] hugetlb: Factorize architecture hugetlb primitives
Date: Thu,  5 Jul 2018 05:03:12 +0000
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812025>

In order to reduce copy/paste of functions across architectures and then
make riscv hugetlb port (and future ports) simpler and smaller, this
patchset intends to factorize the numerous hugetlb primitives that are defined
across all the architectures.

Except for prepare_hugepage_range, this patchset moves the versions that
are just pass-through to standard pte primitives into
asm-generic/hugetlb.h by using the same #ifdef semantic that can be
found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.

s390 architecture has not been tackled in this serie since it does not
use asm-generic/hugetlb.h at all.
powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).

This patchset has been compiled on x86 only.

Alexandre Ghiti (11):
  hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
  hugetlb: Introduce generic version of hugetlb_free_pgd_range
  hugetlb: Introduce generic version of set_huge_pte_at
  hugetlb: Introduce generic version of huge_ptep_get_and_clear
  hugetlb: Introduce generic version of huge_ptep_clear_flush
  hugetlb: Introduce generic version of huge_pte_none
  hugetlb: Introduce generic version of huge_pte_wrprotect
  hugetlb: Introduce generic version of prepare_hugepage_range
  hugetlb: Introduce generic version of huge_ptep_set_wrprotect
  hugetlb: Introduce generic version of huge_ptep_set_access_flags
  hugetlb: Introduce generic version of huge_ptep_get

 arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
 arch/arm/include/asm/hugetlb.h               | 33 +----------
 arch/arm64/include/asm/hugetlb.h             | 39 +++---------
 arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
 arch/mips/include/asm/hugetlb.h              | 40 +++----------
 arch/parisc/include/asm/hugetlb.h            | 33 +++--------
 arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
 arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
 arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
 arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
 arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
 arch/sh/include/asm/hugetlb.h                | 54 ++---------------
 arch/sparc/include/asm/hugetlb.h             | 40 +++----------
 arch/x86/include/asm/hugetlb.h               | 72 +----------------------
 include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
 15 files changed, 143 insertions(+), 384 deletions(-)

-- 
2.16.2



From - Thu Nov 08 21:41:39 2018
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Subject: [PATCH v2 01/11] hugetlb: Harmonize hugetlb.h arch specific defines
 with pgtable.h
Date: Thu,  5 Jul 2018 05:12:32 +0000
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Xref: news.gmane.org gmane.linux.ports.arm.kernel:660917 gmane.linux.kernel:2812030 gmane.linux.ports.ia64:28887 gmane.linux.ports.mips.general:65247 gmane.linux.ports.parisc:28738 gmane.linux.ports.ppc64.devel:159670 gmane.linux.ports.sh.devel:57160 gmane.linux.ports.sparc:28062 gmane.linux.kernel.cross-arch:45008
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/660917>

asm-generic/hugetlb.h proposes generic implementations of hugetlb
related functions: use __HAVE_ARCH_HUGE* defines in order to make arch
specific implementations of hugetlb functions consistent with pgtable.h
scheme.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm64/include/asm/hugetlb.h | 2 +-
 include/asm-generic/hugetlb.h    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index e73f68569624..3fcf14663dfa 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -81,9 +81,9 @@ extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTE_CLEAR
 extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 			   pte_t *ptep, unsigned long sz);
-#define huge_pte_clear huge_pte_clear
 extern void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
 				 pte_t *ptep, pte_t pte, unsigned long sz);
 #define set_huge_swap_pte_at set_huge_swap_pte_at
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9d0cde8ab716..3da7cff52360 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -32,7 +32,7 @@ static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot)
 	return pte_modify(pte, newprot);
 }
 
-#ifndef huge_pte_clear
+#ifndef __HAVE_ARCH_HUGE_PTE_CLEAR
 static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 		    pte_t *ptep, unsigned long sz)
 {
-- 
2.16.2

From - Thu Nov 08 21:41:39 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 03/11] hugetlb: Introduce generic version of set_huge_pte_at
Date: Thu,  5 Jul 2018 05:12:34 +0000
Lines: 178
Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.ports.arm.kernel:660918 gmane.linux.kernel:2812031 gmane.linux.ports.ia64:28888 gmane.linux.ports.mips.general:65248 gmane.linux.ports.parisc:28739 gmane.linux.ports.ppc64.devel:159671 gmane.linux.ports.sh.devel:57161 gmane.linux.ports.sparc:28063 gmane.linux.kernel.cross-arch:45009
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/660918>

arm, ia64, mips, powerpc, sh, x86 architectures use the
same version of set_huge_pte_at, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 6 ------
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 6 ------
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 +++++++-
 10 files changed, 10 insertions(+), 37 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index d4014fbe5ea3..398fb06e8207 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4af1a800a900..874661a1dff1 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -60,6 +60,7 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 				struct page *page, int writable);
 #define arch_make_huge_pte arch_make_huge_pte
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 			    pte_t *ptep, pte_t pte);
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index afe9fa4d969b..a235d6f60fb3 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 53764050243e..8ea439041d5d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,12 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 28c23b68d38d..77c8adbac7c3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -4,6 +4,7 @@
 
 #include <asm/page.h>
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index de46ee16b615..ba7d5d8b543f 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,12 +132,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index f6a51b609409..bc552e37c1c9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 59d89b52ccb7..16b0c53ea6c9 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -12,6 +12,7 @@ struct pud_huge_patch_entry {
 extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 #endif
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 996ce8e15365..554d5614b375 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index c697ca9dda18..ee010b756246 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -47,8 +47,14 @@ static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
 {
 	free_pgd_range(tlb, addr, end, floor, ceiling);
 }
+#endif
 
-
+#ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
+static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		pte_t *ptep, pte_t pte)
+{
+	set_pte_at(mm, addr, ptep, pte);
+}
 #endif
 
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2

From - Thu Nov 08 21:41:39 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 02/11] hugetlb: Introduce generic version of
 hugetlb_free_pgd_range
Date: Thu,  5 Jul 2018 05:12:33 +0000
Lines: 305
Approved: news@gmane.org
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To: linux@armlinux.org.uk, catalin.marinas@arm.com, will.deacon@arm.com,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/660919>

arm, arm64, mips, parisc, sh, x86 architectures use the
same version of hugetlb_free_pgd_range, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb.h     | 12 ++----------
 arch/arm64/include/asm/hugetlb.h   | 10 ----------
 arch/ia64/include/asm/hugetlb.h    |  5 +++--
 arch/mips/include/asm/hugetlb.h    | 13 ++-----------
 arch/parisc/include/asm/hugetlb.h  | 12 ++----------
 arch/powerpc/include/asm/hugetlb.h |  4 +++-
 arch/sh/include/asm/hugetlb.h      | 12 ++----------
 arch/sparc/include/asm/hugetlb.h   |  4 +++-
 arch/x86/include/asm/hugetlb.h     | 11 ++---------
 include/asm-generic/hugetlb.h      | 11 +++++++++++
 10 files changed, 30 insertions(+), 64 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 7d26f6c4f0f5..047b893ef95d 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -23,19 +23,9 @@
 #define _ASM_ARM_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #include <asm/hugetlb-3level.h>
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
@@ -68,4 +58,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 	clear_bit(PG_dcache_clean, &page->flags);
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_ARM_HUGETLB_H */
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3fcf14663dfa..4af1a800a900 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -25,16 +25,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return READ_ONCE(*ptep);
 }
 
-
-
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 74d2a5540aaf..afe9fa4d969b 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -3,9 +3,8 @@
 #define _ASM_IA64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -70,4 +69,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_IA64_HUGETLB_H */
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 982bc0685330..53764050243e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -10,8 +10,6 @@
 #define __ASM_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -38,15 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr,
-					  unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -114,4 +103,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* __ASM_HUGETLB_H */
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 58e0f4620426..28c23b68d38d 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -3,8 +3,6 @@
 #define _ASM_PARISC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
@@ -32,14 +30,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
@@ -71,4 +61,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_PARISC64_HUGETLB_H */
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 3225eb6402cc..de46ee16b615 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -4,7 +4,6 @@
 
 #ifdef CONFIG_HUGETLB_PAGE
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 extern struct kmem_cache *hugepte_cache;
 
@@ -113,6 +112,7 @@ static inline void flush_hugetlb_page(struct vm_area_struct *vma,
 void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
 #endif
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -193,4 +193,6 @@ static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr,
 }
 #endif /* CONFIG_HUGETLB_PAGE */
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_POWERPC_HUGETLB_H */
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 735939c0f513..f6a51b609409 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -4,8 +4,6 @@
 
 #include <asm/cacheflush.h>
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -27,14 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -85,4 +75,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 	clear_bit(PG_dcache_clean, &page->flags);
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SH_HUGETLB_H */
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 300557c66698..59d89b52ccb7 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
 #define _ASM_SPARC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #ifdef CONFIG_HUGETLB_PAGE
 struct pud_huge_patch_entry {
@@ -84,8 +83,11 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SPARC64_HUGETLB_H */
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 5ed826da5e07..996ce8e15365 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
 #define _ASM_X86_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE)
 
@@ -28,14 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -90,4 +81,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 static inline bool gigantic_page_supported(void) { return true; }
 #endif
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_X86_HUGETLB_H */
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 3da7cff52360..c697ca9dda18 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -40,4 +40,15 @@ static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
+		unsigned long addr, unsigned long end,
+		unsigned long floor, unsigned long ceiling)
+{
+	free_pgd_range(tlb, addr, end, floor, ceiling);
+}
+
+
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2

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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 00/11] hugetlb: Factorize hugetlb architecture primitives
Date: Thu,  5 Jul 2018 05:16:29 +0000
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Xref: news.gmane.org gmane.linux.ports.arm.kernel:660920 gmane.linux.kernel:2812033 gmane.linux.ports.ia64:28890 gmane.linux.ports.mips.general:65250 gmane.linux.ports.parisc:28741 gmane.linux.ports.ppc64.devel:159673 gmane.linux.ports.sh.devel:57163 gmane.linux.ports.sparc:28065 gmane.linux.kernel.cross-arch:45011
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/660920>

In order to reduce copy/paste of functions across architectures and then
make riscv hugetlb port (and future ports) simpler and smaller, this
patchset intends to factorize the numerous hugetlb primitives that are
defined across all the architectures.

Except for prepare_hugepage_range, this patchset moves the versions that
are just pass-through to standard pte primitives into
asm-generic/hugetlb.h by using the same #ifdef semantic that can be
found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.

s390 architecture has not been tackled in this serie since it does not
use asm-generic/hugetlb.h at all.
powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).

This patchset has been compiled on x86 only.

Alexandre Ghiti (11):
  hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
  hugetlb: Introduce generic version of hugetlb_free_pgd_range
  hugetlb: Introduce generic version of set_huge_pte_at
  hugetlb: Introduce generic version of huge_ptep_get_and_clear
  hugetlb: Introduce generic version of huge_ptep_clear_flush
  hugetlb: Introduce generic version of huge_pte_none
  hugetlb: Introduce generic version of huge_pte_wrprotect
  hugetlb: Introduce generic version of prepare_hugepage_range
  hugetlb: Introduce generic version of huge_ptep_set_wrprotect
  hugetlb: Introduce generic version of huge_ptep_set_access_flags
  hugetlb: Introduce generic version of huge_ptep_get

 arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
 arch/arm/include/asm/hugetlb.h               | 33 +----------
 arch/arm64/include/asm/hugetlb.h             | 39 +++---------
 arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
 arch/mips/include/asm/hugetlb.h              | 40 +++----------
 arch/parisc/include/asm/hugetlb.h            | 33 +++--------
 arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
 arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
 arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
 arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
 arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
 arch/sh/include/asm/hugetlb.h                | 54 ++---------------
 arch/sparc/include/asm/hugetlb.h             | 40 +++----------
 arch/x86/include/asm/hugetlb.h               | 72 +----------------------
 include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
 15 files changed, 143 insertions(+), 384 deletions(-)

-- 
2.16.2

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From: Alexandre Ghiti <alex@ghiti.fr>
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Subject: [PATCH v3 01/11] hugetlb: Harmonize hugetlb.h arch specific defines
 with pgtable.h
Date: Thu,  5 Jul 2018 05:16:30 +0000
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/660921>

asm-generic/hugetlb.h proposes generic implementations of hugetlb
related functions: use __HAVE_ARCH_HUGE* defines in order to make arch
specific implementations of hugetlb functions consistent with pgtable.h
scheme.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm64/include/asm/hugetlb.h | 2 +-
 include/asm-generic/hugetlb.h    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index e73f68569624..3fcf14663dfa 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -81,9 +81,9 @@ extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTE_CLEAR
 extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 			   pte_t *ptep, unsigned long sz);
-#define huge_pte_clear huge_pte_clear
 extern void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
 				 pte_t *ptep, pte_t pte, unsigned long sz);
 #define set_huge_swap_pte_at set_huge_swap_pte_at
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9d0cde8ab716..3da7cff52360 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -32,7 +32,7 @@ static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot)
 	return pte_modify(pte, newprot);
 }
 
-#ifndef huge_pte_clear
+#ifndef __HAVE_ARCH_HUGE_PTE_CLEAR
 static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 		    pte_t *ptep, unsigned long sz)
 {
-- 
2.16.2

From - Thu Nov 08 21:41:39 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 02/11] hugetlb: Introduce generic version of hugetlb_free_pgd_range
Date: Thu,  5 Jul 2018 05:16:31 +0000
Lines: 307
Approved: news@gmane.org
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References: <20180705051640.790-1-alex@ghiti.fr>
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        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812036>

arm, arm64, mips, parisc, sh, x86 architectures use the
same version of hugetlb_free_pgd_range, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb.h     | 12 ++----------
 arch/arm64/include/asm/hugetlb.h   | 10 ----------
 arch/ia64/include/asm/hugetlb.h    |  5 +++--
 arch/mips/include/asm/hugetlb.h    | 13 ++-----------
 arch/parisc/include/asm/hugetlb.h  | 12 ++----------
 arch/powerpc/include/asm/hugetlb.h |  4 +++-
 arch/sh/include/asm/hugetlb.h      | 12 ++----------
 arch/sparc/include/asm/hugetlb.h   |  4 +++-
 arch/x86/include/asm/hugetlb.h     | 11 ++---------
 include/asm-generic/hugetlb.h      | 11 +++++++++++
 10 files changed, 30 insertions(+), 64 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 7d26f6c4f0f5..047b893ef95d 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -23,19 +23,9 @@
 #define _ASM_ARM_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #include <asm/hugetlb-3level.h>
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
@@ -68,4 +58,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 	clear_bit(PG_dcache_clean, &page->flags);
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_ARM_HUGETLB_H */
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3fcf14663dfa..4af1a800a900 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -25,16 +25,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return READ_ONCE(*ptep);
 }
 
-
-
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 74d2a5540aaf..afe9fa4d969b 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -3,9 +3,8 @@
 #define _ASM_IA64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -70,4 +69,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_IA64_HUGETLB_H */
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 982bc0685330..53764050243e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -10,8 +10,6 @@
 #define __ASM_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -38,15 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr,
-					  unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -114,4 +103,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* __ASM_HUGETLB_H */
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 58e0f4620426..28c23b68d38d 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -3,8 +3,6 @@
 #define _ASM_PARISC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
@@ -32,14 +30,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
@@ -71,4 +61,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_PARISC64_HUGETLB_H */
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 3225eb6402cc..de46ee16b615 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -4,7 +4,6 @@
 
 #ifdef CONFIG_HUGETLB_PAGE
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 extern struct kmem_cache *hugepte_cache;
 
@@ -113,6 +112,7 @@ static inline void flush_hugetlb_page(struct vm_area_struct *vma,
 void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
 #endif
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -193,4 +193,6 @@ static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr,
 }
 #endif /* CONFIG_HUGETLB_PAGE */
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_POWERPC_HUGETLB_H */
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 735939c0f513..f6a51b609409 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -4,8 +4,6 @@
 
 #include <asm/cacheflush.h>
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -27,14 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -85,4 +75,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 	clear_bit(PG_dcache_clean, &page->flags);
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SH_HUGETLB_H */
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 300557c66698..59d89b52ccb7 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
 #define _ASM_SPARC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #ifdef CONFIG_HUGETLB_PAGE
 struct pud_huge_patch_entry {
@@ -84,8 +83,11 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SPARC64_HUGETLB_H */
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 5ed826da5e07..996ce8e15365 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
 #define _ASM_X86_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE)
 
@@ -28,14 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -90,4 +81,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 static inline bool gigantic_page_supported(void) { return true; }
 #endif
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_X86_HUGETLB_H */
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 3da7cff52360..c697ca9dda18 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -40,4 +40,15 @@ static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
+		unsigned long addr, unsigned long end,
+		unsigned long floor, unsigned long ceiling)
+{
+	free_pgd_range(tlb, addr, end, floor, ceiling);
+}
+
+
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:39 2018
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X-Mozilla-Keys:                                                                                 
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 03/11] hugetlb: Introduce generic version of set_huge_pte_at
Date: Thu,  5 Jul 2018 05:16:32 +0000
Lines: 180
Approved: news@gmane.org
Message-ID: <20180705051640.790-4-alex@ghiti.fr>
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Xref: news.gmane.org gmane.linux.kernel:2812038 gmane.linux.ports.arm.kernel:660923 gmane.linux.ports.ia64:28893 gmane.linux.ports.mips.general:65253 gmane.linux.ports.parisc:28744 gmane.linux.ports.ppc64.devel:159676 gmane.linux.ports.sh.devel:57166 gmane.linux.ports.sparc:28068 gmane.linux.kernel.cross-arch:45014
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812038>

arm, ia64, mips, powerpc, sh, x86 architectures use the
same version of set_huge_pte_at, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 6 ------
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 6 ------
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 +++++++-
 10 files changed, 10 insertions(+), 37 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index d4014fbe5ea3..398fb06e8207 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4af1a800a900..874661a1dff1 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -60,6 +60,7 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 				struct page *page, int writable);
 #define arch_make_huge_pte arch_make_huge_pte
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 			    pte_t *ptep, pte_t pte);
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index afe9fa4d969b..a235d6f60fb3 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 53764050243e..8ea439041d5d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,12 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 28c23b68d38d..77c8adbac7c3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -4,6 +4,7 @@
 
 #include <asm/page.h>
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index de46ee16b615..ba7d5d8b543f 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,12 +132,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index f6a51b609409..bc552e37c1c9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 59d89b52ccb7..16b0c53ea6c9 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -12,6 +12,7 @@ struct pud_huge_patch_entry {
 extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 #endif
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 996ce8e15365..554d5614b375 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index c697ca9dda18..ee010b756246 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -47,8 +47,14 @@ static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
 {
 	free_pgd_range(tlb, addr, end, floor, ceiling);
 }
+#endif
 
-
+#ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
+static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		pte_t *ptep, pte_t pte)
+{
+	set_pte_at(mm, addr, ptep, pte);
+}
 #endif
 
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:39 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 04/11] hugetlb: Introduce generic version of
 huge_ptep_get_and_clear
Date: Thu,  5 Jul 2018 05:16:33 +0000
Lines: 165
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/660924>

arm, ia64, sh, x86 architectures use the
same version of huge_ptep_get_and_clear, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 13 insertions(+), 24 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 398fb06e8207..ad36e84b819a 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -49,12 +49,6 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	ptep_set_wrprotect(mm, addr, ptep);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 874661a1dff1..6ae0bcafe162 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -66,6 +66,7 @@ extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index a235d6f60fb3..6719c74da0de 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 8ea439041d5d..0959cc5a41fa 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,6 +36,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 77c8adbac7c3..6e281e1bb336 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -8,6 +8,7 @@
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index ba7d5d8b543f..ec3e0c2e78f8 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,6 +132,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index bc552e37c1c9..08ee6c00b5e9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 16b0c53ea6c9..944e3a4bfaff 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -16,6 +16,7 @@ extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 554d5614b375..48b8d9b13cc6 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ee010b756246..0f6f151780dd 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -57,4 +57,12 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+		unsigned long addr, pte_t *ptep)
+{
+	return ptep_get_and_clear(mm, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2

From - Thu Nov 08 21:41:39 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 05/11] hugetlb: Introduce generic version of huge_ptep_clear_flush
Date: Thu,  5 Jul 2018 05:16:34 +0000
Lines: 157
Approved: news@gmane.org
Message-ID: <20180705051640.790-6-alex@ghiti.fr>
References: <20180705051640.790-1-alex@ghiti.fr>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812040>

arm, x86 architectures use the same version of
huge_ptep_clear_flush, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 1 +
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 1 +
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index ad36e84b819a..b897541520ef 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 6ae0bcafe162..4c8dd488554d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -71,6 +71,7 @@ extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
 #define __HAVE_ARCH_HUGE_PTE_CLEAR
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 6719c74da0de..41b5f6adeee4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,6 +20,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 0959cc5a41fa..7df1f116a3cc 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -48,6 +48,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 	return pte;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 6e281e1bb336..9afff26747a1 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -32,6 +32,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index ec3e0c2e78f8..de0769f0b5b2 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -143,6 +143,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 #endif
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 08ee6c00b5e9..9abf9c86b769 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,6 +25,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 944e3a4bfaff..651a9593fcee 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 48b8d9b13cc6..8347d5abf882 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline int huge_pte_none(pte_t pte)
 {
 	return pte_none(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 0f6f151780dd..ffa63fd8388d 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -65,4 +65,12 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
+static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
+		unsigned long addr, pte_t *ptep)
+{
+	ptep_clear_flush(vma, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:39 2018
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X-Mozilla-Keys:                                                                                 
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 04/11] hugetlb: Introduce generic version of
 huge_ptep_get_and_clear
Date: Thu,  5 Jul 2018 05:12:35 +0000
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/660926>

arm, ia64, sh, x86 architectures use the
same version of huge_ptep_get_and_clear, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 13 insertions(+), 24 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 398fb06e8207..ad36e84b819a 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -49,12 +49,6 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	ptep_set_wrprotect(mm, addr, ptep);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 874661a1dff1..6ae0bcafe162 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -66,6 +66,7 @@ extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index a235d6f60fb3..6719c74da0de 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 8ea439041d5d..0959cc5a41fa 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,6 +36,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 77c8adbac7c3..6e281e1bb336 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -8,6 +8,7 @@
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index ba7d5d8b543f..ec3e0c2e78f8 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,6 +132,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index bc552e37c1c9..08ee6c00b5e9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 16b0c53ea6c9..944e3a4bfaff 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -16,6 +16,7 @@ extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 554d5614b375..48b8d9b13cc6 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ee010b756246..0f6f151780dd 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -57,4 +57,12 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+		unsigned long addr, pte_t *ptep)
+{
+	return ptep_get_and_clear(mm, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2

From - Thu Nov 08 21:41:39 2018
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X-Mozilla-Keys:                                                                                 
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 06/11] hugetlb: Introduce generic version of huge_pte_none
Date: Thu,  5 Jul 2018 05:16:35 +0000
Lines: 178
Approved: news@gmane.org
Message-ID: <20180705051640.790-7-alex@ghiti.fr>
References: <20180705051640.790-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812042>

arm, arm64, ia64, parisc, powerpc, sh, sparc, x86 architectures
use the same version of huge_pte_none, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb.h     | 5 -----
 arch/arm64/include/asm/hugetlb.h   | 5 -----
 arch/ia64/include/asm/hugetlb.h    | 5 -----
 arch/mips/include/asm/hugetlb.h    | 1 +
 arch/parisc/include/asm/hugetlb.h  | 5 -----
 arch/powerpc/include/asm/hugetlb.h | 5 -----
 arch/sh/include/asm/hugetlb.h      | 5 -----
 arch/sparc/include/asm/hugetlb.h   | 5 -----
 arch/x86/include/asm/hugetlb.h     | 5 -----
 include/asm-generic/hugetlb.h      | 7 +++++++
 10 files changed, 8 insertions(+), 40 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 047b893ef95d..3d2ce4dbc145 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -43,11 +43,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4c8dd488554d..49247c6f94db 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 41b5f6adeee4..bf573500b3c4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 7df1f116a3cc..1c9c4531376c 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -55,6 +55,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_tlb_page(vma, addr & huge_page_mask(hstate_vma(vma)));
 }
 
+#define __HAVE_ARCH_HUGE_PTE_NONE
 static inline int huge_pte_none(pte_t pte)
 {
 	unsigned long val = pte_val(pte) & ~_PAGE_GLOBAL;
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 9afff26747a1..c09d8c74553c 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index de0769f0b5b2..530b817e097c 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 9abf9c86b769..a9f8266f33cf 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 651a9593fcee..11115bbd712e 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 8347d5abf882..c5fdc53b6e41 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,11 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ffa63fd8388d..2fc3d68424e9 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -73,4 +73,11 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTE_NONE
+static inline int huge_pte_none(pte_t pte)
+{
+	return pte_none(pte);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:39 2018
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X-Mozilla-Keys:                                                                                 
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 06/11] hugetlb: Introduce generic version of huge_pte_none
Date: Thu,  5 Jul 2018 05:12:37 +0000
Lines: 176
Approved: news@gmane.org
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Xref: news.gmane.org gmane.linux.ports.arm.kernel:660928 gmane.linux.kernel:2812043 gmane.linux.ports.ia64:28898 gmane.linux.ports.mips.general:65258 gmane.linux.ports.parisc:28749 gmane.linux.ports.ppc64.devel:159682 gmane.linux.ports.sh.devel:57171 gmane.linux.ports.sparc:28073 gmane.linux.kernel.cross-arch:45019
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/660928>

arm, arm64, ia64, parisc, powerpc, sh, sparc, x86 architectures
use the same version of huge_pte_none, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb.h     | 5 -----
 arch/arm64/include/asm/hugetlb.h   | 5 -----
 arch/ia64/include/asm/hugetlb.h    | 5 -----
 arch/mips/include/asm/hugetlb.h    | 1 +
 arch/parisc/include/asm/hugetlb.h  | 5 -----
 arch/powerpc/include/asm/hugetlb.h | 5 -----
 arch/sh/include/asm/hugetlb.h      | 5 -----
 arch/sparc/include/asm/hugetlb.h   | 5 -----
 arch/x86/include/asm/hugetlb.h     | 5 -----
 include/asm-generic/hugetlb.h      | 7 +++++++
 10 files changed, 8 insertions(+), 40 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 047b893ef95d..3d2ce4dbc145 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -43,11 +43,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4c8dd488554d..49247c6f94db 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 41b5f6adeee4..bf573500b3c4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 7df1f116a3cc..1c9c4531376c 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -55,6 +55,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_tlb_page(vma, addr & huge_page_mask(hstate_vma(vma)));
 }
 
+#define __HAVE_ARCH_HUGE_PTE_NONE
 static inline int huge_pte_none(pte_t pte)
 {
 	unsigned long val = pte_val(pte) & ~_PAGE_GLOBAL;
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 9afff26747a1..c09d8c74553c 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index de0769f0b5b2..530b817e097c 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 9abf9c86b769..a9f8266f33cf 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 651a9593fcee..11115bbd712e 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 8347d5abf882..c5fdc53b6e41 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,11 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ffa63fd8388d..2fc3d68424e9 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -73,4 +73,11 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTE_NONE
+static inline int huge_pte_none(pte_t pte)
+{
+	return pte_none(pte);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2

From - Thu Nov 08 21:41:39 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 05/11] hugetlb: Introduce generic version of
 huge_ptep_clear_flush
Date: Thu,  5 Jul 2018 05:12:36 +0000
Lines: 155
Approved: news@gmane.org
Message-ID: <20180705051242.694-5-alex@ghiti.fr>
References: <20180705050323.301-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com, will.deacon@arm.com,
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Xref: news.gmane.org gmane.linux.ports.arm.kernel:660929 gmane.linux.kernel:2812046 gmane.linux.ports.ia64:28899 gmane.linux.ports.mips.general:65259 gmane.linux.ports.parisc:28750 gmane.linux.ports.ppc64.devel:159683 gmane.linux.ports.sh.devel:57172 gmane.linux.ports.sparc:28074 gmane.linux.kernel.cross-arch:45020
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/660929>

arm, x86 architectures use the same version of
huge_ptep_clear_flush, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 1 +
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 1 +
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index ad36e84b819a..b897541520ef 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 6ae0bcafe162..4c8dd488554d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -71,6 +71,7 @@ extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
 #define __HAVE_ARCH_HUGE_PTE_CLEAR
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 6719c74da0de..41b5f6adeee4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,6 +20,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 0959cc5a41fa..7df1f116a3cc 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -48,6 +48,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 	return pte;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 6e281e1bb336..9afff26747a1 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -32,6 +32,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index ec3e0c2e78f8..de0769f0b5b2 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -143,6 +143,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 #endif
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 08ee6c00b5e9..9abf9c86b769 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,6 +25,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 944e3a4bfaff..651a9593fcee 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 48b8d9b13cc6..8347d5abf882 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline int huge_pte_none(pte_t pte)
 {
 	return pte_none(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 0f6f151780dd..ffa63fd8388d 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -65,4 +65,12 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
+static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
+		unsigned long addr, pte_t *ptep)
+{
+	ptep_clear_flush(vma, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2

From - Thu Nov 08 21:41:39 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 07/11] hugetlb: Introduce generic version of huge_pte_wrprotect
Date: Thu,  5 Jul 2018 05:16:36 +0000
Lines: 182
Approved: news@gmane.org
Message-ID: <20180705051640.790-8-alex@ghiti.fr>
References: <20180705051640.790-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
        jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org,
        paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp,
        dalias@libc.org, davem@davemloft.net, tglx@linutronix.de,
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Xref: news.gmane.org gmane.linux.kernel:2812049 gmane.linux.ports.arm.kernel:660930 gmane.linux.ports.ia64:28900 gmane.linux.ports.mips.general:65260 gmane.linux.ports.parisc:28751 gmane.linux.ports.ppc64.devel:159684 gmane.linux.ports.sh.devel:57173 gmane.linux.ports.sparc:28075 gmane.linux.kernel.cross-arch:45021
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812049>

arm, arm64, ia64, mips, parisc, powerpc, sh, sparc, x86
architectures use the same version of huge_pte_wrprotect, so move
this generic implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb.h     | 5 -----
 arch/arm64/include/asm/hugetlb.h   | 5 -----
 arch/ia64/include/asm/hugetlb.h    | 5 -----
 arch/mips/include/asm/hugetlb.h    | 5 -----
 arch/parisc/include/asm/hugetlb.h  | 5 -----
 arch/powerpc/include/asm/hugetlb.h | 5 -----
 arch/sh/include/asm/hugetlb.h      | 5 -----
 arch/sparc/include/asm/hugetlb.h   | 5 -----
 arch/x86/include/asm/hugetlb.h     | 5 -----
 include/asm-generic/hugetlb.h      | 7 +++++++
 10 files changed, 7 insertions(+), 45 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 3d2ce4dbc145..1e718a626ef9 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -43,11 +43,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 49247c6f94db..1fd64ebf0cd7 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index bf573500b3c4..82fe3d7a38d9 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 1c9c4531376c..b3d6bb53ee6e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -62,11 +62,6 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index c09d8c74553c..5a102d7251e4 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 530b817e097c..6f056dc44345 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index a9f8266f33cf..54f65094efe6 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 11115bbd712e..f661362376e0 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index c5fdc53b6e41..19668672ab37 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,11 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 2fc3d68424e9..cd9697672b79 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -80,4 +80,11 @@ static inline int huge_pte_none(pte_t pte)
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTE_WRPROTECT
+static inline pte_t huge_pte_wrprotect(pte_t pte)
+{
+	return pte_wrprotect(pte);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:40 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 08/11] hugetlb: Introduce generic version of prepare_hugepage_range
Date: Thu,  5 Jul 2018 05:16:37 +0000
Lines: 217
Approved: news@gmane.org
Message-ID: <20180705051640.790-9-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
        jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org,
        paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp,
        dalias@libc.org, davem@davemloft.net, tglx@linutronix.de,
        mingo@redhat.com, hpa@zytor.com, x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812051>

arm, arm64, powerpc, sparc, x86 architectures use the same version of
prepare_hugepage_range, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb.h     | 11 -----------
 arch/arm64/include/asm/hugetlb.h   | 11 -----------
 arch/ia64/include/asm/hugetlb.h    |  1 +
 arch/mips/include/asm/hugetlb.h    |  1 +
 arch/parisc/include/asm/hugetlb.h  |  1 +
 arch/powerpc/include/asm/hugetlb.h | 15 ---------------
 arch/sh/include/asm/hugetlb.h      |  1 +
 arch/sparc/include/asm/hugetlb.h   | 16 ----------------
 arch/x86/include/asm/hugetlb.h     | 15 ---------------
 include/asm-generic/hugetlb.h      | 15 +++++++++++++++
 10 files changed, 19 insertions(+), 68 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 1e718a626ef9..34fb401efe81 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -32,17 +32,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int prepare_hugepage_range(struct file *file,
-					 unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 1fd64ebf0cd7..3e7f6e69b28d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -31,17 +31,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int prepare_hugepage_range(struct file *file,
-					 unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 82fe3d7a38d9..cbe296271030 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -9,6 +9,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len);
 
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index b3d6bb53ee6e..6ff2531cfb1d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -18,6 +18,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 					 unsigned long addr,
 					 unsigned long len)
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 5a102d7251e4..fb7e0fd858a3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -22,6 +22,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
  * If the arch doesn't supply something else, assume that hugepage
  * size aligned regions are ok without further preparation.
  */
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len)
 {
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 6f056dc44345..9fcb5fee2e33 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -117,21 +117,6 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 54f65094efe6..f1bbd255ee43 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -15,6 +15,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
  * If the arch doesn't supply something else, assume that hugepage
  * size aligned regions are ok without further preparation.
  */
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index f661362376e0..2101ea217f33 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -26,22 +26,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 19668672ab37..2e5117d37c7d 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -12,21 +12,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index cd9697672b79..6c0c8b0c71e0 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -87,4 +87,19 @@ static inline pte_t huge_pte_wrprotect(pte_t pte)
 }
 #endif
 
+#ifndef __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
+static inline int prepare_hugepage_range(struct file *file,
+		unsigned long addr, unsigned long len)
+{
+	struct hstate *h = hstate_file(file);
+
+	if (len & ~huge_page_mask(h))
+		return -EINVAL;
+	if (addr & ~huge_page_mask(h))
+		return -EINVAL;
+
+	return 0;
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:40 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 09/11] hugetlb: Introduce generic version of huge_ptep_set_wrprotect
Date: Thu,  5 Jul 2018 05:16:38 +0000
Lines: 216
Approved: news@gmane.org
Message-ID: <20180705051640.790-10-alex@ghiti.fr>
References: <20180705051640.790-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
        jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org,
        paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp,
        dalias@libc.org, davem@davemloft.net, tglx@linutronix.de,
        mingo@redhat.com, hpa@zytor.com, x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812052>

arm, ia64, mips, sh, x86 architectures use the same version
of huge_ptep_set_wrprotect, so move this generic implementation into
asm-generic/hugetlb.h.
Note: powerpc uses twice for book3s/32 and nohash/32 the same version as
the above architectures, but the modification was not straightforward
and hence has not been done.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h        | 6 ------
 arch/arm64/include/asm/hugetlb.h             | 1 +
 arch/ia64/include/asm/hugetlb.h              | 6 ------
 arch/mips/include/asm/hugetlb.h              | 6 ------
 arch/parisc/include/asm/hugetlb.h            | 1 +
 arch/powerpc/include/asm/book3s/32/pgtable.h | 2 ++
 arch/powerpc/include/asm/book3s/64/pgtable.h | 1 +
 arch/powerpc/include/asm/nohash/32/pgtable.h | 2 ++
 arch/powerpc/include/asm/nohash/64/pgtable.h | 1 +
 arch/sh/include/asm/hugetlb.h                | 6 ------
 arch/sparc/include/asm/hugetlb.h             | 1 +
 arch/x86/include/asm/hugetlb.h               | 6 ------
 include/asm-generic/hugetlb.h                | 8 ++++++++
 13 files changed, 17 insertions(+), 30 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index b897541520ef..8247cd6a2ac6 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3e7f6e69b28d..f4f69ae5466e 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -48,6 +48,7 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index cbe296271030..49d1f7949f3a 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 6ff2531cfb1d..3dcf5debf8c4 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -63,12 +63,6 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr,
 					     pte_t *ptep, pte_t pte,
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index fb7e0fd858a3..9c3950ca2974 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -39,6 +39,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
index 02f5acd7ccc4..d2cd1d0226e9 100644
--- a/arch/powerpc/include/asm/book3s/32/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
@@ -228,6 +228,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 {
 	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
 }
+
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 42aafba7a308..7d957f7c47cd 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -451,6 +451,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 		pte_update(mm, addr, ptep, 0, _PAGE_PRIVILEGED, 0);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index 7c46a98cc7f4..f39e200d9591 100644
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -249,6 +249,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 {
 	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
 }
+
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
index dd0c7236208f..69fbf7e9b4db 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
@@ -238,6 +238,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 	pte_update(mm, addr, ptep, _PAGE_RW, 0, 0);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index f1bbd255ee43..8df4004977b9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,12 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 2101ea217f33..c41754a113f3 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -32,6 +32,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 2e5117d37c7d..de370836a17d 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -12,12 +12,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 6c0c8b0c71e0..9b9039845278 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -102,4 +102,12 @@ static inline int prepare_hugepage_range(struct file *file,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
+static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
+		unsigned long addr, pte_t *ptep)
+{
+	ptep_set_wrprotect(mm, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:40 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 10/11] hugetlb: Introduce generic version of huge_ptep_set_access_flags
Date: Thu,  5 Jul 2018 05:16:39 +0000
Lines: 170
Approved: news@gmane.org
Message-ID: <20180705051640.790-11-alex@ghiti.fr>
References: <20180705051640.790-1-alex@ghiti.fr>
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NNTP-Posting-Date: Thu, 5 Jul 2018 05:26:12 +0000 (UTC)
Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
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        paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp,
        dalias@libc.org, davem@davemloft.net, tglx@linutronix.de,
        mingo@redhat.com, hpa@zytor.com, x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
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Xref: news.gmane.org gmane.linux.kernel:2812053 gmane.linux.ports.arm.kernel:660933 gmane.linux.ports.ia64:28903 gmane.linux.ports.mips.general:65263 gmane.linux.ports.parisc:28754 gmane.linux.ports.ppc64.devel:159687 gmane.linux.ports.sh.devel:57176 gmane.linux.ports.sparc:28078 gmane.linux.kernel.cross-arch:45024
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812053>

arm, ia64, sh, x86 architectures use the same version
of huge_ptep_set_access_flags, so move this generic implementation
into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 7 -------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 7 -------
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 7 -------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 7 -------
 include/asm-generic/hugetlb.h         | 9 +++++++++
 10 files changed, 14 insertions(+), 28 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 8247cd6a2ac6..54e4b097b1f5 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,11 +37,4 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 #endif /* _ASM_ARM_HUGETLB_3LEVEL_H */
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index f4f69ae5466e..80887abcef7f 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 			    pte_t *ptep, pte_t pte);
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 49d1f7949f3a..e9b42750fdf5 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,13 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 3dcf5debf8c4..120adc3b2ffd 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -63,6 +63,7 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr,
 					     pte_t *ptep, pte_t pte,
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 9c3950ca2974..165b4e5a6f32 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -43,6 +43,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty);
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 9fcb5fee2e33..9898e234df90 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -137,6 +137,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 8df4004977b9..c87195ae0cfa 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,13 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index c41754a113f3..028a1465fbe7 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -40,6 +40,7 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index de370836a17d..1df8944904c6 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -12,13 +12,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9b9039845278..f3c99a03ee83 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -110,4 +110,13 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
+static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+		unsigned long addr, pte_t *ptep,
+		pte_t pte, int dirty)
+{
+	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:40 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 11/11] hugetlb: Introduce generic version of huge_ptep_get
Date: Thu,  5 Jul 2018 05:16:40 +0000
Lines: 174
Approved: news@gmane.org
Message-ID: <20180705051640.790-12-alex@ghiti.fr>
References: <20180705051640.790-1-alex@ghiti.fr>
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NNTP-Posting-Date: Thu, 5 Jul 2018 05:27:14 +0000 (UTC)
Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
        jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org,
        paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp,
        dalias@libc.org, davem@davemloft.net, tglx@linutronix.de,
        mingo@redhat.com, hpa@zytor.com, x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
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        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812054>

ia64, mips, parisc, powerpc, sh, sparc, x86 architectures use the
same version of huge_ptep_get, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 1 +
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 5 -----
 arch/mips/include/asm/hugetlb.h       | 5 -----
 arch/parisc/include/asm/hugetlb.h     | 5 -----
 arch/powerpc/include/asm/hugetlb.h    | 5 -----
 arch/sh/include/asm/hugetlb.h         | 5 -----
 arch/sparc/include/asm/hugetlb.h      | 5 -----
 arch/x86/include/asm/hugetlb.h        | 5 -----
 include/asm-generic/hugetlb.h         | 7 +++++++
 10 files changed, 9 insertions(+), 35 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 54e4b097b1f5..0d9f3918fa7e 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -29,6 +29,7 @@
  * ptes.
  * (The valid bit is automatically cleared by set_pte_at for PROT_NONE ptes).
  */
+#define __HAVE_ARCH_HUGE_PTEP_GET
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	pte_t retval = *ptep;
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 80887abcef7f..fb6609875455 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -20,6 +20,7 @@
 
 #include <asm/page.h>
 
+#define __HAVE_ARCH_HUGE_PTEP_GET
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return READ_ONCE(*ptep);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index e9b42750fdf5..36cc0396b214 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,11 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 120adc3b2ffd..425bb6fc3bda 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -82,11 +82,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 	return changed;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 165b4e5a6f32..7cb595dcb7d7 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty);
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 9898e234df90..d0032f6f61b2 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -142,11 +142,6 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index c87195ae0cfa..6f025fe18146 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,11 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 028a1465fbe7..3963f80d1cb3 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -53,11 +53,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 	return changed;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 1df8944904c6..c97b34a29054 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -12,11 +12,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index f3c99a03ee83..71d7b77eea50 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -119,4 +119,11 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET
+static inline pte_t huge_ptep_get(pte_t *ptep)
+{
+	return *ptep;
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:40 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alex Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v2 06/11] hugetlb: Introduce generic version of
 huge_pte_none
Date: Thu, 5 Jul 2018 05:37:54 +0000
Lines: 180
Approved: news@gmane.org
Message-ID: <92f84f1e-652c-6442-fafa-acfa63607601@ghiti.fr>
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 <20180705051242.694-1-alex@ghiti.fr> <20180705051242.694-6-alex@ghiti.fr>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812060>

Please drop this serie, sorry for the noise.


On 07/05/2018 05:12 AM, Alexandre Ghiti wrote:
> arm, arm64, ia64, parisc, powerpc, sh, sparc, x86 architectures
> use the same version of huge_pte_none, so move this generic
> implementation into asm-generic/hugetlb.h.
>
> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>   arch/arm/include/asm/hugetlb.h     | 5 -----
>   arch/arm64/include/asm/hugetlb.h   | 5 -----
>   arch/ia64/include/asm/hugetlb.h    | 5 -----
>   arch/mips/include/asm/hugetlb.h    | 1 +
>   arch/parisc/include/asm/hugetlb.h  | 5 -----
>   arch/powerpc/include/asm/hugetlb.h | 5 -----
>   arch/sh/include/asm/hugetlb.h      | 5 -----
>   arch/sparc/include/asm/hugetlb.h   | 5 -----
>   arch/x86/include/asm/hugetlb.h     | 5 -----
>   include/asm-generic/hugetlb.h      | 7 +++++++
>   10 files changed, 8 insertions(+), 40 deletions(-)
>
> diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
> index 047b893ef95d..3d2ce4dbc145 100644
> --- a/arch/arm/include/asm/hugetlb.h
> +++ b/arch/arm/include/asm/hugetlb.h
> @@ -43,11 +43,6 @@ static inline int prepare_hugepage_range(struct file *file,
>   	return 0;
>   }
>   
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>   static inline pte_t huge_pte_wrprotect(pte_t pte)
>   {
>   	return pte_wrprotect(pte);
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 4c8dd488554d..49247c6f94db 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
>   	return 0;
>   }
>   
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>   static inline pte_t huge_pte_wrprotect(pte_t pte)
>   {
>   	return pte_wrprotect(pte);
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index 41b5f6adeee4..bf573500b3c4 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   {
>   }
>   
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>   static inline pte_t huge_pte_wrprotect(pte_t pte)
>   {
>   	return pte_wrprotect(pte);
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 7df1f116a3cc..1c9c4531376c 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -55,6 +55,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   	flush_tlb_page(vma, addr & huge_page_mask(hstate_vma(vma)));
>   }
>   
> +#define __HAVE_ARCH_HUGE_PTE_NONE
>   static inline int huge_pte_none(pte_t pte)
>   {
>   	unsigned long val = pte_val(pte) & ~_PAGE_GLOBAL;
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index 9afff26747a1..c09d8c74553c 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   {
>   }
>   
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>   static inline pte_t huge_pte_wrprotect(pte_t pte)
>   {
>   	return pte_wrprotect(pte);
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index de0769f0b5b2..530b817e097c 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   	flush_hugetlb_page(vma, addr);
>   }
>   
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>   static inline pte_t huge_pte_wrprotect(pte_t pte)
>   {
>   	return pte_wrprotect(pte);
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index 9abf9c86b769..a9f8266f33cf 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   {
>   }
>   
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>   static inline pte_t huge_pte_wrprotect(pte_t pte)
>   {
>   	return pte_wrprotect(pte);
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 651a9593fcee..11115bbd712e 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   {
>   }
>   
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>   static inline pte_t huge_pte_wrprotect(pte_t pte)
>   {
>   	return pte_wrprotect(pte);
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index 8347d5abf882..c5fdc53b6e41 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -27,11 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
>   	return 0;
>   }
>   
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>   static inline pte_t huge_pte_wrprotect(pte_t pte)
>   {
>   	return pte_wrprotect(pte);
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index ffa63fd8388d..2fc3d68424e9 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -73,4 +73,11 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   }
>   #endif
>   
> +#ifndef __HAVE_ARCH_HUGE_PTE_NONE
> +static inline int huge_pte_none(pte_t pte)
> +{
> +	return pte_none(pte);
> +}
> +#endif
> +
>   #endif /* _ASM_GENERIC_HUGETLB_H */



From - Thu Nov 08 21:41:40 2018
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From: Alex Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH 05/11] hugetlb: Introduce generic version of
 huge_ptep_clear_flush
Date: Thu, 5 Jul 2018 05:38:31 +0000
Lines: 159
Approved: news@gmane.org
Message-ID: <319ae759-f6b1-0b75-cfd5-35f956afba13@ghiti.fr>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812061>

Please drop this serie, sorry for the noise.


On 07/05/2018 04:58 AM, Alexandre Ghiti wrote:
> arm, x86 architectures use the same version of
> huge_ptep_clear_flush, so move this generic implementation into
> asm-generic/hugetlb.h.
>
> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>   arch/arm/include/asm/hugetlb-3level.h | 6 ------
>   arch/arm64/include/asm/hugetlb.h      | 1 +
>   arch/ia64/include/asm/hugetlb.h       | 1 +
>   arch/mips/include/asm/hugetlb.h       | 1 +
>   arch/parisc/include/asm/hugetlb.h     | 1 +
>   arch/powerpc/include/asm/hugetlb.h    | 1 +
>   arch/sh/include/asm/hugetlb.h         | 1 +
>   arch/sparc/include/asm/hugetlb.h      | 1 +
>   arch/x86/include/asm/hugetlb.h        | 6 ------
>   include/asm-generic/hugetlb.h         | 8 ++++++++
>   10 files changed, 15 insertions(+), 12 deletions(-)
>
> diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
> index ad36e84b819a..b897541520ef 100644
> --- a/arch/arm/include/asm/hugetlb-3level.h
> +++ b/arch/arm/include/asm/hugetlb-3level.h
> @@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
>   	return retval;
>   }
>   
> -static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> -					 unsigned long addr, pte_t *ptep)
> -{
> -	ptep_clear_flush(vma, addr, ptep);
> -}
> -
>   static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>   					   unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 6ae0bcafe162..4c8dd488554d 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -71,6 +71,7 @@ extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>   				     unsigned long addr, pte_t *ptep);
>   extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
>   				    unsigned long addr, pte_t *ptep);
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   				  unsigned long addr, pte_t *ptep);
>   #define __HAVE_ARCH_HUGE_PTE_CLEAR
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index 6719c74da0de..41b5f6adeee4 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -20,6 +20,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>   		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
>   }
>   
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   					 unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 0959cc5a41fa..7df1f116a3cc 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -48,6 +48,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>   	return pte;
>   }
>   
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   					 unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index 6e281e1bb336..9afff26747a1 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -32,6 +32,7 @@ static inline int prepare_hugepage_range(struct file *file,
>   	return 0;
>   }
>   
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   					 unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index ec3e0c2e78f8..de0769f0b5b2 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -143,6 +143,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>   #endif
>   }
>   
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   					 unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index 08ee6c00b5e9..9abf9c86b769 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -25,6 +25,7 @@ static inline int prepare_hugepage_range(struct file *file,
>   	return 0;
>   }
>   
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   					 unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 944e3a4bfaff..651a9593fcee 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -42,6 +42,7 @@ static inline int prepare_hugepage_range(struct file *file,
>   	return 0;
>   }
>   
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>   static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>   					 unsigned long addr, pte_t *ptep)
>   {
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index 48b8d9b13cc6..8347d5abf882 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
>   	return 0;
>   }
>   
> -static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> -					 unsigned long addr, pte_t *ptep)
> -{
> -	ptep_clear_flush(vma, addr, ptep);
> -}
> -
>   static inline int huge_pte_none(pte_t pte)
>   {
>   	return pte_none(pte);
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index 0f6f151780dd..ffa63fd8388d 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -65,4 +65,12 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>   }
>   #endif
>   
> +#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
> +static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> +		unsigned long addr, pte_t *ptep)
> +{
> +	ptep_clear_flush(vma, addr, ptep);
> +}
> +#endif
> +
>   #endif /* _ASM_GENERIC_HUGETLB_H */



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Subject: Re: [PATCH v3 02/11] hugetlb: Introduce generic version of
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--NzB8fVQJ5HfG6fxh
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Hi Alexandre,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.18-rc3 next-20180704]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Alexandre-Ghiti/hugetlb-Factorize-hugetlb-architecture-primitives/20180705-135909
config: powerpc-mpc8540_ads_defconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=powerpc 

All error/warnings (new ones prefixed by >>):

   In file included from arch/powerpc/kernel/setup-common.c:37:0:
>> include/linux/hugetlb.h:191:65: error: expected identifier or '(' before '{' token
    #define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) ({BUG(); 0; })
                                                                    ^
>> include/asm-generic/hugetlb.h:44:20: note: in expansion of macro 'hugetlb_free_pgd_range'
    static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
                       ^~~~~~~~~~~~~~~~~~~~~~

vim +191 include/linux/hugetlb.h

^1da177e Linus Torvalds    2005-04-16  172  
87ffc118 Andrea Arcangeli  2017-02-22  173  #define follow_hugetlb_page(m,v,p,vs,a,b,i,w,n)	({ BUG(); 0; })
^1da177e Linus Torvalds    2005-04-16  174  #define follow_huge_addr(mm, addr, write)	ERR_PTR(-EINVAL)
^1da177e Linus Torvalds    2005-04-16  175  #define copy_hugetlb_page_range(src, dst, vma)	({ BUG(); 0; })
e1759c21 Alexey Dobriyan   2008-10-15  176  static inline void hugetlb_report_meminfo(struct seq_file *m)
e1759c21 Alexey Dobriyan   2008-10-15  177  {
e1759c21 Alexey Dobriyan   2008-10-15  178  }
^1da177e Linus Torvalds    2005-04-16  179  #define hugetlb_report_node_meminfo(n, buf)	0
949f7ec5 David Rientjes    2013-04-29  180  static inline void hugetlb_show_meminfo(void)
949f7ec5 David Rientjes    2013-04-29  181  {
949f7ec5 David Rientjes    2013-04-29  182  }
4dc71451 Aneesh Kumar K.V  2017-07-06  183  #define follow_huge_pd(vma, addr, hpd, flags, pdshift) NULL
e66f17ff Naoya Horiguchi   2015-02-11  184  #define follow_huge_pmd(mm, addr, pmd, flags)	NULL
e66f17ff Naoya Horiguchi   2015-02-11  185  #define follow_huge_pud(mm, addr, pud, flags)	NULL
faaa5b62 Anshuman Khandual 2017-07-06  186  #define follow_huge_pgd(mm, addr, pgd, flags)	NULL
a5516438 Andi Kleen        2008-07-23  187  #define prepare_hugepage_range(file, addr, len)	(-EINVAL)
^1da177e Linus Torvalds    2005-04-16  188  #define pmd_huge(x)	0
ceb86879 Andi Kleen        2008-07-23  189  #define pud_huge(x)	0
^1da177e Linus Torvalds    2005-04-16  190  #define is_hugepage_only_range(mm, addr, len)	0
9da61aef David Gibson      2006-03-22 @191  #define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) ({BUG(); 0; })
788c7df4 Hugh Dickins      2009-06-23  192  #define hugetlb_fault(mm, vma, addr, flags)	({ BUG(); 0; })
8fb5debc Mike Kravetz      2017-02-22  193  #define hugetlb_mcopy_atomic_pte(dst_mm, dst_pte, dst_vma, dst_addr, \
8fb5debc Mike Kravetz      2017-02-22  194  				src_addr, pagep)	({ BUG(); 0; })
7868a208 Punit Agrawal     2017-07-06  195  #define huge_pte_offset(mm, address, sz)	0
24669e58 Aneesh Kumar K.V  2012-07-31  196  

:::::: The code at line 191 was first introduced by commit
:::::: 9da61aef0fd5b17dd4bf4baf33db12c470def774 [PATCH] hugepage: Fix hugepage logic in free_pgtables()

:::::: TO: David Gibson <david@gibson.dropbear.id.au>
:::::: CC: Linus Torvalds <torvalds@g5.osdl.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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X-Mozilla-Keys:                                                                                 
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Subject: Re: [PATCH v3 08/11] hugetlb: Introduce generic version of
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--BOKacYhQ+x31HxR3
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Hi Alexandre,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v4.18-rc3 next-20180704]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Alexandre-Ghiti/hugetlb-Factorize-hugetlb-architecture-primitives/20180705-135909
config: powerpc-mpc8540_ads_defconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=powerpc 

All warnings (new ones prefixed by >>):

   In file included from arch/powerpc/kernel/setup-common.c:37:0:
   include/linux/hugetlb.h:191:65: error: expected identifier or '(' before '{' token
    #define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) ({BUG(); 0; })
                                                                    ^
   include/asm-generic/hugetlb.h:44:20: note: in expansion of macro 'hugetlb_free_pgd_range'
    static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
                       ^~~~~~~~~~~~~~~~~~~~~~
   include/linux/hugetlb.h:187:50: error: expected identifier or '(' before '-' token
    #define prepare_hugepage_range(file, addr, len) (-EINVAL)
                                                     ^
>> include/asm-generic/hugetlb.h:91:19: note: in expansion of macro 'prepare_hugepage_range'
    static inline int prepare_hugepage_range(struct file *file,
                      ^~~~~~~~~~~~~~~~~~~~~~

vim +/prepare_hugepage_range +91 include/asm-generic/hugetlb.h

    42	
    43	#ifndef __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
  > 44	static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
    45			unsigned long addr, unsigned long end,
    46			unsigned long floor, unsigned long ceiling)
    47	{
    48		free_pgd_range(tlb, addr, end, floor, ceiling);
    49	}
    50	#endif
    51	
    52	#ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
    53	static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
    54			pte_t *ptep, pte_t pte)
    55	{
    56		set_pte_at(mm, addr, ptep, pte);
    57	}
    58	#endif
    59	
    60	#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
    61	static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
    62			unsigned long addr, pte_t *ptep)
    63	{
    64		return ptep_get_and_clear(mm, addr, ptep);
    65	}
    66	#endif
    67	
    68	#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
    69	static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
    70			unsigned long addr, pte_t *ptep)
    71	{
    72		ptep_clear_flush(vma, addr, ptep);
    73	}
    74	#endif
    75	
    76	#ifndef __HAVE_ARCH_HUGE_PTE_NONE
    77	static inline int huge_pte_none(pte_t pte)
    78	{
    79		return pte_none(pte);
    80	}
    81	#endif
    82	
    83	#ifndef __HAVE_ARCH_HUGE_PTE_WRPROTECT
    84	static inline pte_t huge_pte_wrprotect(pte_t pte)
    85	{
    86		return pte_wrprotect(pte);
    87	}
    88	#endif
    89	
    90	#ifndef __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
  > 91	static inline int prepare_hugepage_range(struct file *file,
    92			unsigned long addr, unsigned long len)
    93	{
    94		struct hstate *h = hstate_file(file);
    95	
    96		if (len & ~huge_page_mask(h))
    97			return -EINVAL;
    98		if (addr & ~huge_page_mask(h))
    99			return -EINVAL;
   100	
   101		return 0;
   102	}
   103	#endif
   104	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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--BOKacYhQ+x31HxR3--


From - Thu Nov 08 21:41:40 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v6 1/4] resource: Move reparent_resources() to
 kernel/resource.c and make it public
Date: Thu, 5 Jul 2018 18:09:39 +0800
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Approved: news@gmane.org
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References: <20180704041038.8190-1-bhe@redhat.com>
 <20180704041038.8190-2-bhe@redhat.com>
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Cc: Nicolas Pitre <nicolas.pitre-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, brijesh.singh-5C7GfCeVMHo@public.gmane.org,
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To: Andy Shevchenko <andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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On 07/04/18 at 07:46pm, Andy Shevchenko wrote:
> On Wed, Jul 4, 2018 at 7:10 AM, Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> > reparent_resources() is duplicated in arch/microblaze/pci/pci-common.c
> > and arch/powerpc/kernel/pci-common.c, so move it to kernel/resource.c
> > so that it's shared.
> 
> With couple of comments below,

Sure, will fix these and repost with your reviewed-by, thanks. Should be
after I reproduce and fix those issues reported by test robot.

> 
> Reviewed-by: Andy Shevchenko <andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> 
> P.S. In some commit message in this series you used 'likt' instead of 'like'.
> 
> >
> > Signed-off-by: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> > ---
> >  arch/microblaze/pci/pci-common.c | 37 -------------------------------------
> >  arch/powerpc/kernel/pci-common.c | 35 -----------------------------------
> >  include/linux/ioport.h           |  1 +
> >  kernel/resource.c                | 39 +++++++++++++++++++++++++++++++++++++++
> >  4 files changed, 40 insertions(+), 72 deletions(-)
> >
> > diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
> > index f34346d56095..7899bafab064 100644
> > --- a/arch/microblaze/pci/pci-common.c
> > +++ b/arch/microblaze/pci/pci-common.c
> > @@ -619,43 +619,6 @@ int pcibios_add_device(struct pci_dev *dev)
> >  EXPORT_SYMBOL(pcibios_add_device);
> >
> >  /*
> > - * Reparent resource children of pr that conflict with res
> > - * under res, and make res replace those children.
> > - */
> > -static int __init reparent_resources(struct resource *parent,
> > -                                    struct resource *res)
> > -{
> > -       struct resource *p, **pp;
> > -       struct resource **firstpp = NULL;
> > -
> > -       for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
> > -               if (p->end < res->start)
> > -                       continue;
> > -               if (res->end < p->start)
> > -                       break;
> > -               if (p->start < res->start || p->end > res->end)
> > -                       return -1;      /* not completely contained */
> > -               if (firstpp == NULL)
> > -                       firstpp = pp;
> > -       }
> > -       if (firstpp == NULL)
> > -               return -1;      /* didn't find any conflicting entries? */
> > -       res->parent = parent;
> > -       res->child = *firstpp;
> > -       res->sibling = *pp;
> > -       *firstpp = res;
> > -       *pp = NULL;
> > -       for (p = res->child; p != NULL; p = p->sibling) {
> > -               p->parent = res;
> > -               pr_debug("PCI: Reparented %s [%llx..%llx] under %s\n",
> > -                        p->name,
> > -                        (unsigned long long)p->start,
> > -                        (unsigned long long)p->end, res->name);
> > -       }
> > -       return 0;
> > -}
> > -
> > -/*
> >   *  Handle resources of PCI devices.  If the world were perfect, we could
> >   *  just allocate all the resource regions and do nothing more.  It isn't.
> >   *  On the other hand, we cannot just re-allocate all devices, as it would
> > diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
> > index fe9733ffffaa..926035bb378d 100644
> > --- a/arch/powerpc/kernel/pci-common.c
> > +++ b/arch/powerpc/kernel/pci-common.c
> > @@ -1088,41 +1088,6 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
> >  EXPORT_SYMBOL(pcibios_align_resource);
> >
> >  /*
> > - * Reparent resource children of pr that conflict with res
> > - * under res, and make res replace those children.
> > - */
> > -static int reparent_resources(struct resource *parent,
> > -                                    struct resource *res)
> > -{
> > -       struct resource *p, **pp;
> > -       struct resource **firstpp = NULL;
> > -
> > -       for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
> > -               if (p->end < res->start)
> > -                       continue;
> > -               if (res->end < p->start)
> > -                       break;
> > -               if (p->start < res->start || p->end > res->end)
> > -                       return -1;      /* not completely contained */
> > -               if (firstpp == NULL)
> > -                       firstpp = pp;
> > -       }
> > -       if (firstpp == NULL)
> > -               return -1;      /* didn't find any conflicting entries? */
> > -       res->parent = parent;
> > -       res->child = *firstpp;
> > -       res->sibling = *pp;
> > -       *firstpp = res;
> > -       *pp = NULL;
> > -       for (p = res->child; p != NULL; p = p->sibling) {
> > -               p->parent = res;
> > -               pr_debug("PCI: Reparented %s %pR under %s\n",
> > -                        p->name, p, res->name);
> > -       }
> > -       return 0;
> > -}
> > -
> > -/*
> >   *  Handle resources of PCI devices.  If the world were perfect, we could
> >   *  just allocate all the resource regions and do nothing more.  It isn't.
> >   *  On the other hand, we cannot just re-allocate all devices, as it would
> > diff --git a/include/linux/ioport.h b/include/linux/ioport.h
> > index da0ebaec25f0..dfdcd0bfe54e 100644
> > --- a/include/linux/ioport.h
> > +++ b/include/linux/ioport.h
> > @@ -192,6 +192,7 @@ extern int allocate_resource(struct resource *root, struct resource *new,
> >  struct resource *lookup_resource(struct resource *root, resource_size_t start);
> >  int adjust_resource(struct resource *res, resource_size_t start,
> >                     resource_size_t size);
> > +int reparent_resources(struct resource *parent, struct resource *res);
> >  resource_size_t resource_alignment(struct resource *res);
> >  static inline resource_size_t resource_size(const struct resource *res)
> >  {
> > diff --git a/kernel/resource.c b/kernel/resource.c
> > index 30e1bc68503b..d1cbf4b50e17 100644
> > --- a/kernel/resource.c
> > +++ b/kernel/resource.c
> > @@ -983,6 +983,45 @@ int adjust_resource(struct resource *res, resource_size_t start,
> >  }
> >  EXPORT_SYMBOL(adjust_resource);
> >
> > +/*
> 
> /** ?
> 
> > + * reparent_resources - reparent resource children of parent that res covers
> > + * @parent: parent resource descriptor
> > + * @res: resource descriptor desired by caller
> > + *
> > + * Reparent resource children of 'parent' that conflict with 'res'
> > + * under 'res', and make 'res' replace those children.
> 
> Describe error codes, please.
> 
> > + */
> > +int reparent_resources(struct resource *parent, struct resource *res)
> > +{
> > +       struct resource *p, **pp;
> > +       struct resource **firstpp = NULL;
> > +
> > +       for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
> > +               if (p->end < res->start)
> > +                       continue;
> > +               if (res->end < p->start)
> > +                       break;
> > +               if (p->start < res->start || p->end > res->end)
> > +                       return -ENOTSUPP;       /* not completely contained */
> > +               if (firstpp == NULL)
> > +                       firstpp = pp;
> > +       }
> > +       if (firstpp == NULL)
> > +               return -ECANCELED; /* didn't find any conflicting entries? */
> > +       res->parent = parent;
> > +       res->child = *firstpp;
> > +       res->sibling = *pp;
> > +       *firstpp = res;
> > +       *pp = NULL;
> > +       for (p = res->child; p != NULL; p = p->sibling) {
> > +               p->parent = res;
> > +               pr_debug("PCI: Reparented %s %pR under %s\n",
> > +                        p->name, p, res->name);
> > +       }
> > +       return 0;
> > +}
> > +EXPORT_SYMBOL(reparent_resources);
> > +
> >  static void __init __reserve_region_with_split(struct resource *root,
> >                 resource_size_t start, resource_size_t end,
> >                 const char *name)
> > --
> > 2.13.6
> >
> 
> 
> 
> -- 
> With Best Regards,
> Andy Shevchenko

From - Thu Nov 08 21:41:40 2018
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Subject: Re: [PATCH v3 02/11] hugetlb: Introduce generic version of
 hugetlb_free_pgd_range
Date: Thu, 5 Jul 2018 10:22:30 +0000
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On 07/05/2018 05:16 AM, Alexandre Ghiti wrote:
> arm, arm64, mips, parisc, sh, x86 architectures use the
> same version of hugetlb_free_pgd_range, so move this generic
> implementation into asm-generic/hugetlb.h.
> 
> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>

Build failure on mpc885_ads_defconfig

   CC      arch/powerpc/kernel/setup-common.o
In file included from arch/powerpc/kernel/setup-common.c:37:
./include/linux/hugetlb.h:191:65: error: expected identifier or '(' 
before '{' token
  #define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) 
({BUG(); 0; })
                                                                  ^
./include/asm-generic/hugetlb.h:44:20: note: in expansion of macro 
'hugetlb_free_pgd_range'
  static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
                     ^~~~~~~~~~~~~~~~~~~~~~

see below

> ---
>   arch/arm/include/asm/hugetlb.h     | 12 ++----------
>   arch/arm64/include/asm/hugetlb.h   | 10 ----------
>   arch/ia64/include/asm/hugetlb.h    |  5 +++--
>   arch/mips/include/asm/hugetlb.h    | 13 ++-----------
>   arch/parisc/include/asm/hugetlb.h  | 12 ++----------
>   arch/powerpc/include/asm/hugetlb.h |  4 +++-
>   arch/sh/include/asm/hugetlb.h      | 12 ++----------
>   arch/sparc/include/asm/hugetlb.h   |  4 +++-
>   arch/x86/include/asm/hugetlb.h     | 11 ++---------
>   include/asm-generic/hugetlb.h      | 11 +++++++++++
>   10 files changed, 30 insertions(+), 64 deletions(-)
> 

[snip]

> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index 3225eb6402cc..de46ee16b615 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -4,7 +4,6 @@
>   
>   #ifdef CONFIG_HUGETLB_PAGE
>   #include <asm/page.h>
> -#include <asm-generic/hugetlb.h>
>   
>   extern struct kmem_cache *hugepte_cache;
>   
> @@ -113,6 +112,7 @@ static inline void flush_hugetlb_page(struct vm_area_struct *vma,
>   void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
>   #endif
>   
> +#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
>   void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
>   			    unsigned long end, unsigned long floor,
>   			    unsigned long ceiling);
> @@ -193,4 +193,6 @@ static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr,
>   }
>   #endif /* CONFIG_HUGETLB_PAGE */
>   
> +#include <asm-generic/hugetlb.h>
> +

That include was previously inside #ifdef CONFIG_HUGETLB_PAGE.
Why put it outside ?

Christophe



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Subject: Re: [PATCH v3 02/11] hugetlb: Introduce generic version of
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My bad, when I moved the #include <asm-generic/hugeltb.h> at the bottom 
of the file, I did not pay attention to that #ifdef.
I'm going to fix powerpc and check other architectures if I did not make 
the same mistake.
I'll send a v4 as soon as possible.

Thanks for your comment,

Alex

On 07/05/2018 10:22 AM, Christophe Leroy wrote:
>
>
> On 07/05/2018 05:16 AM, Alexandre Ghiti wrote:
>> arm, arm64, mips, parisc, sh, x86 architectures use the
>> same version of hugetlb_free_pgd_range, so move this generic
>> implementation into asm-generic/hugetlb.h.
>>
>> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
>
> Build failure on mpc885_ads_defconfig
>
>   CC      arch/powerpc/kernel/setup-common.o
> In file included from arch/powerpc/kernel/setup-common.c:37:
> ./include/linux/hugetlb.h:191:65: error: expected identifier or '(' 
> before '{' token
>  #define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) 
> ({BUG(); 0; })
>                                                                  ^
> ./include/asm-generic/hugetlb.h:44:20: note: in expansion of macro 
> 'hugetlb_free_pgd_range'
>  static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
>                     ^~~~~~~~~~~~~~~~~~~~~~
>
> see below
>
>> ---
>>   arch/arm/include/asm/hugetlb.h     | 12 ++----------
>>   arch/arm64/include/asm/hugetlb.h   | 10 ----------
>>   arch/ia64/include/asm/hugetlb.h    |  5 +++--
>>   arch/mips/include/asm/hugetlb.h    | 13 ++-----------
>>   arch/parisc/include/asm/hugetlb.h  | 12 ++----------
>>   arch/powerpc/include/asm/hugetlb.h |  4 +++-
>>   arch/sh/include/asm/hugetlb.h      | 12 ++----------
>>   arch/sparc/include/asm/hugetlb.h   |  4 +++-
>>   arch/x86/include/asm/hugetlb.h     | 11 ++---------
>>   include/asm-generic/hugetlb.h      | 11 +++++++++++
>>   10 files changed, 30 insertions(+), 64 deletions(-)
>>
>
> [snip]
>
>> diff --git a/arch/powerpc/include/asm/hugetlb.h 
>> b/arch/powerpc/include/asm/hugetlb.h
>> index 3225eb6402cc..de46ee16b615 100644
>> --- a/arch/powerpc/include/asm/hugetlb.h
>> +++ b/arch/powerpc/include/asm/hugetlb.h
>> @@ -4,7 +4,6 @@
>>     #ifdef CONFIG_HUGETLB_PAGE
>>   #include <asm/page.h>
>> -#include <asm-generic/hugetlb.h>
>>     extern struct kmem_cache *hugepte_cache;
>>   @@ -113,6 +112,7 @@ static inline void flush_hugetlb_page(struct 
>> vm_area_struct *vma,
>>   void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long 
>> vmaddr);
>>   #endif
>>   +#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
>>   void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long 
>> addr,
>>                   unsigned long end, unsigned long floor,
>>                   unsigned long ceiling);
>> @@ -193,4 +193,6 @@ static inline pte_t *hugepte_offset(hugepd_t hpd, 
>> unsigned long addr,
>>   }
>>   #endif /* CONFIG_HUGETLB_PAGE */
>>   +#include <asm-generic/hugetlb.h>
>> +
>
> That include was previously inside #ifdef CONFIG_HUGETLB_PAGE.
> Why put it outside ?
>
> Christophe
>



From - Thu Nov 08 21:41:40 2018
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Subject: [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture primitives
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In order to reduce copy/paste of functions across architectures and then
make riscv hugetlb port (and future ports) simpler and smaller, this
patchset intends to factorize the numerous hugetlb primitives that are
defined across all the architectures.

Except for prepare_hugepage_range, this patchset moves the versions that
are just pass-through to standard pte primitives into
asm-generic/hugetlb.h by using the same #ifdef semantic that can be
found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.

s390 architecture has not been tackled in this serie since it does not
use asm-generic/hugetlb.h at all.
powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).

This patchset has been compiled on x86 only. 

Changelog:

v4:
  Fix powerpc build error due to misplacing of #include
  <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as
  pointed by Christophe Leroy.

v1, v2, v3:
  Same version, just problems with email provider and misuse of
  --batch-size option of git send-email

Alexandre Ghiti (11):
  hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
  hugetlb: Introduce generic version of hugetlb_free_pgd_range
  hugetlb: Introduce generic version of set_huge_pte_at
  hugetlb: Introduce generic version of huge_ptep_get_and_clear
  hugetlb: Introduce generic version of huge_ptep_clear_flush
  hugetlb: Introduce generic version of huge_pte_none
  hugetlb: Introduce generic version of huge_pte_wrprotect
  hugetlb: Introduce generic version of prepare_hugepage_range
  hugetlb: Introduce generic version of huge_ptep_set_wrprotect
  hugetlb: Introduce generic version of huge_ptep_set_access_flags
  hugetlb: Introduce generic version of huge_ptep_get

 arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
 arch/arm/include/asm/hugetlb.h               | 33 +----------
 arch/arm64/include/asm/hugetlb.h             | 39 +++---------
 arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
 arch/mips/include/asm/hugetlb.h              | 40 +++----------
 arch/parisc/include/asm/hugetlb.h            | 33 +++--------
 arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
 arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
 arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
 arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
 arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
 arch/sh/include/asm/hugetlb.h                | 54 ++---------------
 arch/sparc/include/asm/hugetlb.h             | 40 +++----------
 arch/x86/include/asm/hugetlb.h               | 72 +----------------------
 include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
 15 files changed, 143 insertions(+), 384 deletions(-)

-- 
2.16.2



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Subject: [PATCH v4 01/11] hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
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asm-generic/hugetlb.h proposes generic implementations of hugetlb
related functions: use __HAVE_ARCH_HUGE* defines in order to make arch
specific implementations of hugetlb functions consistent with pgtable.h
scheme.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm64/include/asm/hugetlb.h | 2 +-
 include/asm-generic/hugetlb.h    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index e73f68569624..3fcf14663dfa 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -81,9 +81,9 @@ extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTE_CLEAR
 extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 			   pte_t *ptep, unsigned long sz);
-#define huge_pte_clear huge_pte_clear
 extern void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
 				 pte_t *ptep, pte_t pte, unsigned long sz);
 #define set_huge_swap_pte_at set_huge_swap_pte_at
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9d0cde8ab716..3da7cff52360 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -32,7 +32,7 @@ static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot)
 	return pte_modify(pte, newprot);
 }
 
-#ifndef huge_pte_clear
+#ifndef __HAVE_ARCH_HUGE_PTE_CLEAR
 static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 		    pte_t *ptep, unsigned long sz)
 {
-- 
2.16.2



From - Thu Nov 08 21:41:41 2018
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Subject: [PATCH v4 02/11] hugetlb: Introduce generic version of hugetlb_free_pgd_range
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812285>

arm, arm64, mips, parisc, sh, x86 architectures use the
same version of hugetlb_free_pgd_range, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb.h     | 12 ++----------
 arch/arm64/include/asm/hugetlb.h   | 10 ----------
 arch/ia64/include/asm/hugetlb.h    |  5 +++--
 arch/mips/include/asm/hugetlb.h    | 13 ++-----------
 arch/parisc/include/asm/hugetlb.h  | 12 ++----------
 arch/powerpc/include/asm/hugetlb.h |  4 +++-
 arch/sh/include/asm/hugetlb.h      | 12 ++----------
 arch/sparc/include/asm/hugetlb.h   |  4 +++-
 arch/x86/include/asm/hugetlb.h     | 11 ++---------
 include/asm-generic/hugetlb.h      | 11 +++++++++++
 10 files changed, 30 insertions(+), 64 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 7d26f6c4f0f5..047b893ef95d 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -23,19 +23,9 @@
 #define _ASM_ARM_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #include <asm/hugetlb-3level.h>
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
@@ -68,4 +58,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 	clear_bit(PG_dcache_clean, &page->flags);
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_ARM_HUGETLB_H */
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3fcf14663dfa..4af1a800a900 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -25,16 +25,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return READ_ONCE(*ptep);
 }
 
-
-
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 74d2a5540aaf..afe9fa4d969b 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -3,9 +3,8 @@
 #define _ASM_IA64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -70,4 +69,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_IA64_HUGETLB_H */
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 982bc0685330..53764050243e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -10,8 +10,6 @@
 #define __ASM_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -38,15 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr,
-					  unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -114,4 +103,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* __ASM_HUGETLB_H */
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 58e0f4620426..28c23b68d38d 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -3,8 +3,6 @@
 #define _ASM_PARISC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
@@ -32,14 +30,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
@@ -71,4 +61,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_PARISC64_HUGETLB_H */
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 3225eb6402cc..a7d5c739df9b 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -4,7 +4,6 @@
 
 #ifdef CONFIG_HUGETLB_PAGE
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 extern struct kmem_cache *hugepte_cache;
 
@@ -113,6 +112,7 @@ static inline void flush_hugetlb_page(struct vm_area_struct *vma,
 void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
 #endif
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -179,6 +179,8 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #else /* ! CONFIG_HUGETLB_PAGE */
 static inline void flush_hugetlb_page(struct vm_area_struct *vma,
 				      unsigned long vmaddr)
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 735939c0f513..f6a51b609409 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -4,8 +4,6 @@
 
 #include <asm/cacheflush.h>
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -27,14 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -85,4 +75,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 	clear_bit(PG_dcache_clean, &page->flags);
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SH_HUGETLB_H */
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 300557c66698..59d89b52ccb7 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
 #define _ASM_SPARC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #ifdef CONFIG_HUGETLB_PAGE
 struct pud_huge_patch_entry {
@@ -84,8 +83,11 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SPARC64_HUGETLB_H */
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 5ed826da5e07..996ce8e15365 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
 #define _ASM_X86_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE)
 
@@ -28,14 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -90,4 +81,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 static inline bool gigantic_page_supported(void) { return true; }
 #endif
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_X86_HUGETLB_H */
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 3da7cff52360..c697ca9dda18 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -40,4 +40,15 @@ static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
+		unsigned long addr, unsigned long end,
+		unsigned long floor, unsigned long ceiling)
+{
+	free_pgd_range(tlb, addr, end, floor, ceiling);
+}
+
+
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:41 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 03/11] hugetlb: Introduce generic version of set_huge_pte_at
Date: Thu,  5 Jul 2018 11:07:08 +0000
Lines: 180
Approved: news@gmane.org
Message-ID: <20180705110716.3919-4-alex@ghiti.fr>
References: <20180705110716.3919-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
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        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
        jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812286>

arm, ia64, mips, powerpc, sh, x86 architectures use the
same version of set_huge_pte_at, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 6 ------
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 6 ------
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 +++++++-
 10 files changed, 10 insertions(+), 37 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index d4014fbe5ea3..398fb06e8207 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4af1a800a900..874661a1dff1 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -60,6 +60,7 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 				struct page *page, int writable);
 #define arch_make_huge_pte arch_make_huge_pte
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 			    pte_t *ptep, pte_t pte);
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index afe9fa4d969b..a235d6f60fb3 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 53764050243e..8ea439041d5d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,12 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 28c23b68d38d..77c8adbac7c3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -4,6 +4,7 @@
 
 #include <asm/page.h>
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index a7d5c739df9b..0794b53439d4 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,12 +132,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index f6a51b609409..bc552e37c1c9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 59d89b52ccb7..16b0c53ea6c9 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -12,6 +12,7 @@ struct pud_huge_patch_entry {
 extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 #endif
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 996ce8e15365..554d5614b375 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index c697ca9dda18..ee010b756246 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -47,8 +47,14 @@ static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
 {
 	free_pgd_range(tlb, addr, end, floor, ceiling);
 }
+#endif
 
-
+#ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
+static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		pte_t *ptep, pte_t pte)
+{
+	set_pte_at(mm, addr, ptep, pte);
+}
 #endif
 
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:41 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 04/11] hugetlb: Introduce generic version of huge_ptep_get_and_clear
Date: Thu,  5 Jul 2018 11:07:09 +0000
Lines: 167
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812287>

arm, ia64, sh, x86 architectures use the
same version of huge_ptep_get_and_clear, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 13 insertions(+), 24 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 398fb06e8207..ad36e84b819a 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -49,12 +49,6 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	ptep_set_wrprotect(mm, addr, ptep);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 874661a1dff1..6ae0bcafe162 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -66,6 +66,7 @@ extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index a235d6f60fb3..6719c74da0de 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 8ea439041d5d..0959cc5a41fa 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,6 +36,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 77c8adbac7c3..6e281e1bb336 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -8,6 +8,7 @@
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 0794b53439d4..970101cf9c82 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,6 +132,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index bc552e37c1c9..08ee6c00b5e9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 16b0c53ea6c9..944e3a4bfaff 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -16,6 +16,7 @@ extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 554d5614b375..48b8d9b13cc6 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ee010b756246..0f6f151780dd 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -57,4 +57,12 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+		unsigned long addr, pte_t *ptep)
+{
+	return ptep_get_and_clear(mm, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:41 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 05/11] hugetlb: Introduce generic version of huge_ptep_clear_flush
Date: Thu,  5 Jul 2018 11:07:10 +0000
Lines: 157
Approved: news@gmane.org
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        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812289>

arm, x86 architectures use the same version of
huge_ptep_clear_flush, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 1 +
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 1 +
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index ad36e84b819a..b897541520ef 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 6ae0bcafe162..4c8dd488554d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -71,6 +71,7 @@ extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
 #define __HAVE_ARCH_HUGE_PTE_CLEAR
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 6719c74da0de..41b5f6adeee4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,6 +20,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 0959cc5a41fa..7df1f116a3cc 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -48,6 +48,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 	return pte;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 6e281e1bb336..9afff26747a1 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -32,6 +32,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 970101cf9c82..0b02856aa85b 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -143,6 +143,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 #endif
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 08ee6c00b5e9..9abf9c86b769 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,6 +25,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 944e3a4bfaff..651a9593fcee 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 48b8d9b13cc6..8347d5abf882 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline int huge_pte_none(pte_t pte)
 {
 	return pte_none(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 0f6f151780dd..ffa63fd8388d 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -65,4 +65,12 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
+static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
+		unsigned long addr, pte_t *ptep)
+{
+	ptep_clear_flush(vma, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 06/11] hugetlb: Introduce generic version of huge_pte_none
Date: Thu,  5 Jul 2018 11:07:11 +0000
Lines: 178
Approved: news@gmane.org
Message-ID: <20180705110716.3919-7-alex@ghiti.fr>
References: <20180705110716.3919-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
        jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org,
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Xref: news.gmane.org gmane.linux.kernel:2812290 gmane.linux.ports.arm.kernel:660993 gmane.linux.ports.ia64:28917 gmane.linux.ports.mips.general:65307 gmane.linux.ports.parisc:28769 gmane.linux.ports.ppc64.devel:159718 gmane.linux.ports.sh.devel:57190 gmane.linux.ports.sparc:28092 gmane.linux.kernel.cross-arch:45041
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812290>

arm, arm64, ia64, parisc, powerpc, sh, sparc, x86 architectures
use the same version of huge_pte_none, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb.h     | 5 -----
 arch/arm64/include/asm/hugetlb.h   | 5 -----
 arch/ia64/include/asm/hugetlb.h    | 5 -----
 arch/mips/include/asm/hugetlb.h    | 1 +
 arch/parisc/include/asm/hugetlb.h  | 5 -----
 arch/powerpc/include/asm/hugetlb.h | 5 -----
 arch/sh/include/asm/hugetlb.h      | 5 -----
 arch/sparc/include/asm/hugetlb.h   | 5 -----
 arch/x86/include/asm/hugetlb.h     | 5 -----
 include/asm-generic/hugetlb.h      | 7 +++++++
 10 files changed, 8 insertions(+), 40 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 047b893ef95d..3d2ce4dbc145 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -43,11 +43,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4c8dd488554d..49247c6f94db 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 41b5f6adeee4..bf573500b3c4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 7df1f116a3cc..1c9c4531376c 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -55,6 +55,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_tlb_page(vma, addr & huge_page_mask(hstate_vma(vma)));
 }
 
+#define __HAVE_ARCH_HUGE_PTE_NONE
 static inline int huge_pte_none(pte_t pte)
 {
 	unsigned long val = pte_val(pte) & ~_PAGE_GLOBAL;
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 9afff26747a1..c09d8c74553c 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 0b02856aa85b..3562d46585ba 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 9abf9c86b769..a9f8266f33cf 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 651a9593fcee..11115bbd712e 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 8347d5abf882..c5fdc53b6e41 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,11 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ffa63fd8388d..2fc3d68424e9 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -73,4 +73,11 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTE_NONE
+static inline int huge_pte_none(pte_t pte)
+{
+	return pte_none(pte);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:41 2018
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X-Mozilla-Keys:                                                                                 
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 07/11] hugetlb: Introduce generic version of huge_pte_wrprotect
Date: Thu,  5 Jul 2018 11:07:12 +0000
Lines: 182
Approved: news@gmane.org
Message-ID: <20180705110716.3919-8-alex@ghiti.fr>
References: <20180705110716.3919-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
        jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org,
        paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp,
        dalias@libc.org, davem@davemloft.net, tglx@linutronix.de,
        mingo@redhat.com, hpa@zytor.com, x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel:2812291 gmane.linux.ports.arm.kernel:660994 gmane.linux.ports.ia64:28918 gmane.linux.ports.mips.general:65308 gmane.linux.ports.parisc:28770 gmane.linux.ports.ppc64.devel:159719 gmane.linux.ports.sh.devel:57191 gmane.linux.ports.sparc:28093 gmane.linux.kernel.cross-arch:45042
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812291>

arm, arm64, ia64, mips, parisc, powerpc, sh, sparc, x86
architectures use the same version of huge_pte_wrprotect, so move
this generic implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb.h     | 5 -----
 arch/arm64/include/asm/hugetlb.h   | 5 -----
 arch/ia64/include/asm/hugetlb.h    | 5 -----
 arch/mips/include/asm/hugetlb.h    | 5 -----
 arch/parisc/include/asm/hugetlb.h  | 5 -----
 arch/powerpc/include/asm/hugetlb.h | 5 -----
 arch/sh/include/asm/hugetlb.h      | 5 -----
 arch/sparc/include/asm/hugetlb.h   | 5 -----
 arch/x86/include/asm/hugetlb.h     | 5 -----
 include/asm-generic/hugetlb.h      | 7 +++++++
 10 files changed, 7 insertions(+), 45 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 3d2ce4dbc145..1e718a626ef9 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -43,11 +43,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 49247c6f94db..1fd64ebf0cd7 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index bf573500b3c4..82fe3d7a38d9 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 1c9c4531376c..b3d6bb53ee6e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -62,11 +62,6 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index c09d8c74553c..5a102d7251e4 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 3562d46585ba..7123599089c6 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index a9f8266f33cf..54f65094efe6 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 11115bbd712e..f661362376e0 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index c5fdc53b6e41..19668672ab37 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -27,11 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 2fc3d68424e9..cd9697672b79 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -80,4 +80,11 @@ static inline int huge_pte_none(pte_t pte)
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTE_WRPROTECT
+static inline pte_t huge_pte_wrprotect(pte_t pte)
+{
+	return pte_wrprotect(pte);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:41 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
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Subject: [PATCH v4 08/11] hugetlb: Introduce generic version of prepare_hugepage_range
Date: Thu,  5 Jul 2018 11:07:13 +0000
Lines: 217
Approved: news@gmane.org
Message-ID: <20180705110716.3919-9-alex@ghiti.fr>
References: <20180705110716.3919-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
        jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org,
        paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp,
        dalias@libc.org, davem@davemloft.net, tglx@linutronix.de,
        mingo@redhat.com, hpa@zytor.com, x86@kernel.org, arnd@arndb.de,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812293>

arm, arm64, powerpc, sparc, x86 architectures use the same version of
prepare_hugepage_range, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb.h     | 11 -----------
 arch/arm64/include/asm/hugetlb.h   | 11 -----------
 arch/ia64/include/asm/hugetlb.h    |  1 +
 arch/mips/include/asm/hugetlb.h    |  1 +
 arch/parisc/include/asm/hugetlb.h  |  1 +
 arch/powerpc/include/asm/hugetlb.h | 15 ---------------
 arch/sh/include/asm/hugetlb.h      |  1 +
 arch/sparc/include/asm/hugetlb.h   | 16 ----------------
 arch/x86/include/asm/hugetlb.h     | 15 ---------------
 include/asm-generic/hugetlb.h      | 15 +++++++++++++++
 10 files changed, 19 insertions(+), 68 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 1e718a626ef9..34fb401efe81 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -32,17 +32,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int prepare_hugepage_range(struct file *file,
-					 unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 1fd64ebf0cd7..3e7f6e69b28d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -31,17 +31,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int prepare_hugepage_range(struct file *file,
-					 unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 82fe3d7a38d9..cbe296271030 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -9,6 +9,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len);
 
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index b3d6bb53ee6e..6ff2531cfb1d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -18,6 +18,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 					 unsigned long addr,
 					 unsigned long len)
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 5a102d7251e4..fb7e0fd858a3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -22,6 +22,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
  * If the arch doesn't supply something else, assume that hugepage
  * size aligned regions are ok without further preparation.
  */
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len)
 {
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 7123599089c6..69c14ecac133 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -117,21 +117,6 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 54f65094efe6..f1bbd255ee43 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -15,6 +15,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
  * If the arch doesn't supply something else, assume that hugepage
  * size aligned regions are ok without further preparation.
  */
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index f661362376e0..2101ea217f33 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -26,22 +26,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 19668672ab37..2e5117d37c7d 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -12,21 +12,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index cd9697672b79..6c0c8b0c71e0 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -87,4 +87,19 @@ static inline pte_t huge_pte_wrprotect(pte_t pte)
 }
 #endif
 
+#ifndef __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
+static inline int prepare_hugepage_range(struct file *file,
+		unsigned long addr, unsigned long len)
+{
+	struct hstate *h = hstate_file(file);
+
+	if (len & ~huge_page_mask(h))
+		return -EINVAL;
+	if (addr & ~huge_page_mask(h))
+		return -EINVAL;
+
+	return 0;
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:41 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 09/11] hugetlb: Introduce generic version of huge_ptep_set_wrprotect
Date: Thu,  5 Jul 2018 11:07:14 +0000
Lines: 216
Approved: news@gmane.org
Message-ID: <20180705110716.3919-10-alex@ghiti.fr>
References: <20180705110716.3919-1-alex@ghiti.fr>
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To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
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        paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp,
        dalias@libc.org, davem@davemloft.net, tglx@linutronix.de,
        mingo@redhat.com, hpa@zytor.com, x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812297>

arm, ia64, mips, sh, x86 architectures use the same version
of huge_ptep_set_wrprotect, so move this generic implementation into
asm-generic/hugetlb.h.
Note: powerpc uses twice for book3s/32 and nohash/32 the same version as
the above architectures, but the modification was not straightforward
and hence has not been done.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h        | 6 ------
 arch/arm64/include/asm/hugetlb.h             | 1 +
 arch/ia64/include/asm/hugetlb.h              | 6 ------
 arch/mips/include/asm/hugetlb.h              | 6 ------
 arch/parisc/include/asm/hugetlb.h            | 1 +
 arch/powerpc/include/asm/book3s/32/pgtable.h | 2 ++
 arch/powerpc/include/asm/book3s/64/pgtable.h | 1 +
 arch/powerpc/include/asm/nohash/32/pgtable.h | 2 ++
 arch/powerpc/include/asm/nohash/64/pgtable.h | 1 +
 arch/sh/include/asm/hugetlb.h                | 6 ------
 arch/sparc/include/asm/hugetlb.h             | 1 +
 arch/x86/include/asm/hugetlb.h               | 6 ------
 include/asm-generic/hugetlb.h                | 8 ++++++++
 13 files changed, 17 insertions(+), 30 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index b897541520ef..8247cd6a2ac6 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3e7f6e69b28d..f4f69ae5466e 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -48,6 +48,7 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index cbe296271030..49d1f7949f3a 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 6ff2531cfb1d..3dcf5debf8c4 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -63,12 +63,6 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr,
 					     pte_t *ptep, pte_t pte,
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index fb7e0fd858a3..9c3950ca2974 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -39,6 +39,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
index 02f5acd7ccc4..d2cd1d0226e9 100644
--- a/arch/powerpc/include/asm/book3s/32/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
@@ -228,6 +228,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 {
 	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
 }
+
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 42aafba7a308..7d957f7c47cd 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -451,6 +451,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 		pte_update(mm, addr, ptep, 0, _PAGE_PRIVILEGED, 0);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index 7c46a98cc7f4..f39e200d9591 100644
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -249,6 +249,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 {
 	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
 }
+
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
index dd0c7236208f..69fbf7e9b4db 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
@@ -238,6 +238,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 	pte_update(mm, addr, ptep, _PAGE_RW, 0, 0);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index f1bbd255ee43..8df4004977b9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,12 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 2101ea217f33..c41754a113f3 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -32,6 +32,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 2e5117d37c7d..de370836a17d 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -12,12 +12,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 6c0c8b0c71e0..9b9039845278 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -102,4 +102,12 @@ static inline int prepare_hugepage_range(struct file *file,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
+static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
+		unsigned long addr, pte_t *ptep)
+{
+	ptep_set_wrprotect(mm, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:41 2018
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X-Mozilla-Keys:                                                                                 
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 10/11] hugetlb: Introduce generic version of huge_ptep_set_access_flags
Date: Thu,  5 Jul 2018 11:07:15 +0000
Lines: 170
Approved: news@gmane.org
Message-ID: <20180705110716.3919-11-alex@ghiti.fr>
References: <20180705110716.3919-1-alex@ghiti.fr>
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To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
        jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org,
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Xref: news.gmane.org gmane.linux.kernel:2812305 gmane.linux.ports.arm.kernel:661000 gmane.linux.ports.ia64:28921 gmane.linux.ports.mips.general:65311 gmane.linux.ports.parisc:28773 gmane.linux.ports.ppc64.devel:159722 gmane.linux.ports.sh.devel:57194 gmane.linux.ports.sparc:28096 gmane.linux.kernel.cross-arch:45045
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812305>

arm, ia64, sh, x86 architectures use the same version
of huge_ptep_set_access_flags, so move this generic implementation
into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 7 -------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 7 -------
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 7 -------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 7 -------
 include/asm-generic/hugetlb.h         | 9 +++++++++
 10 files changed, 14 insertions(+), 28 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 8247cd6a2ac6..54e4b097b1f5 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,11 +37,4 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 #endif /* _ASM_ARM_HUGETLB_3LEVEL_H */
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index f4f69ae5466e..80887abcef7f 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 			    pte_t *ptep, pte_t pte);
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 49d1f7949f3a..e9b42750fdf5 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,13 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 3dcf5debf8c4..120adc3b2ffd 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -63,6 +63,7 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr,
 					     pte_t *ptep, pte_t pte,
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 9c3950ca2974..165b4e5a6f32 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -43,6 +43,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty);
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 69c14ecac133..658bf7136a3c 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -137,6 +137,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 8df4004977b9..c87195ae0cfa 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,13 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index c41754a113f3..028a1465fbe7 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -40,6 +40,7 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index de370836a17d..1df8944904c6 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -12,13 +12,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9b9039845278..f3c99a03ee83 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -110,4 +110,13 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
+static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+		unsigned long addr, pte_t *ptep,
+		pte_t pte, int dirty)
+{
+	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:41 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 11/11] hugetlb: Introduce generic version of huge_ptep_get
Date: Thu,  5 Jul 2018 11:07:16 +0000
Lines: 174
Approved: news@gmane.org
Message-ID: <20180705110716.3919-12-alex@ghiti.fr>
References: <20180705110716.3919-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
        ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
        jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org,
        paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp,
        dalias@libc.org, davem@davemloft.net, tglx@linutronix.de,
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        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
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        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
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Xref: news.gmane.org gmane.linux.kernel:2812311 gmane.linux.ports.arm.kernel:661002 gmane.linux.ports.ia64:28922 gmane.linux.ports.mips.general:65312 gmane.linux.ports.parisc:28774 gmane.linux.ports.ppc64.devel:159723 gmane.linux.ports.sh.devel:57195 gmane.linux.ports.sparc:28097 gmane.linux.kernel.cross-arch:45046
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2812311>

ia64, mips, parisc, powerpc, sh, sparc, x86 architectures use the
same version of huge_ptep_get, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/arm/include/asm/hugetlb-3level.h | 1 +
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 5 -----
 arch/mips/include/asm/hugetlb.h       | 5 -----
 arch/parisc/include/asm/hugetlb.h     | 5 -----
 arch/powerpc/include/asm/hugetlb.h    | 5 -----
 arch/sh/include/asm/hugetlb.h         | 5 -----
 arch/sparc/include/asm/hugetlb.h      | 5 -----
 arch/x86/include/asm/hugetlb.h        | 5 -----
 include/asm-generic/hugetlb.h         | 7 +++++++
 10 files changed, 9 insertions(+), 35 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 54e4b097b1f5..0d9f3918fa7e 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -29,6 +29,7 @@
  * ptes.
  * (The valid bit is automatically cleared by set_pte_at for PROT_NONE ptes).
  */
+#define __HAVE_ARCH_HUGE_PTEP_GET
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	pte_t retval = *ptep;
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 80887abcef7f..fb6609875455 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -20,6 +20,7 @@
 
 #include <asm/page.h>
 
+#define __HAVE_ARCH_HUGE_PTEP_GET
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return READ_ONCE(*ptep);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index e9b42750fdf5..36cc0396b214 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,11 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 120adc3b2ffd..425bb6fc3bda 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -82,11 +82,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 	return changed;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 165b4e5a6f32..7cb595dcb7d7 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty);
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 658bf7136a3c..33a2d9e3ea9e 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -142,11 +142,6 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index c87195ae0cfa..6f025fe18146 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,11 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 028a1465fbe7..3963f80d1cb3 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -53,11 +53,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 	return changed;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 1df8944904c6..c97b34a29054 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -12,11 +12,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index f3c99a03ee83..71d7b77eea50 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -119,4 +119,11 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET
+static inline pte_t huge_ptep_get(pte_t *ptep)
+{
+	return *ptep;
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:41 2018
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Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.drivers.devicetree,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v6 2/4] resource: Use list_head to link sibling resource
Date: Sun, 8 Jul 2018 10:59:46 +0800
Lines: 79
Approved: news@gmane.org
Message-ID: <20180708025946.GI3047@MiWiFi-R3L-srv>
References: <20180704041038.8190-3-bhe@redhat.com>
 <201807042347.hfDcKxmG%fengguang.wu@intel.com>
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Hi,

On 07/05/18 at 01:00am, kbuild test robot wrote:
> Hi Baoquan,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.18-rc3 next-20180704]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

Thanks for telling. 

I cloned 0day-ci/linut to my local pc.
https://github.com/0day-ci/linux.git

However, I didn't find below branch. And tried to open it in web
broswer, also failed.


> url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180704-121402
> config: mips-rb532_defconfig (attached as .config)
> compiler: mipsel-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         GCC_VERSION=7.2.0 make.cross ARCH=mips 

I did find a old one which is for the old version 5 post.

[bhe@linux]$ git remote -v
0day-ci	https://github.com/0day-ci/linux.git (fetch)
0day-ci	https://github.com/0day-ci/linux.git (push)
[bhe@dhcp-128-28 linux]$ git branch -a| grep Baoquan| grep resource
  remotes/0day-ci/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180612-113600

Could you help have a look at this?

Thanks
Baoquan

> 
> All error/warnings (new ones prefixed by >>):
> 
> >> arch/mips/pci/pci-rc32434.c:57:11: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
>      .child = &rc32434_res_pci_mem2
>               ^
>    arch/mips/pci/pci-rc32434.c:57:11: note: (near initialization for 'rc32434_res_pci_mem1.child.next')
> >> arch/mips/pci/pci-rc32434.c:51:47: warning: missing braces around initializer [-Wmissing-braces]
>     static struct resource rc32434_res_pci_mem1 = {
>                                                   ^
>    arch/mips/pci/pci-rc32434.c:60:47: warning: missing braces around initializer [-Wmissing-braces]
>     static struct resource rc32434_res_pci_mem2 = {
>                                                   ^
>    cc1: some warnings being treated as errors
> 
> vim +57 arch/mips/pci/pci-rc32434.c
> 
> 73b4390f Ralf Baechle 2008-07-16  50  
> 73b4390f Ralf Baechle 2008-07-16 @51  static struct resource rc32434_res_pci_mem1 = {
> 73b4390f Ralf Baechle 2008-07-16  52  	.name = "PCI MEM1",
> 73b4390f Ralf Baechle 2008-07-16  53  	.start = 0x50000000,
> 73b4390f Ralf Baechle 2008-07-16  54  	.end = 0x5FFFFFFF,
> 73b4390f Ralf Baechle 2008-07-16  55  	.flags = IORESOURCE_MEM,
> 73b4390f Ralf Baechle 2008-07-16  56  	.sibling = NULL,
> 73b4390f Ralf Baechle 2008-07-16 @57  	.child = &rc32434_res_pci_mem2
> 73b4390f Ralf Baechle 2008-07-16  58  };
> 73b4390f Ralf Baechle 2008-07-16  59  
> 
> :::::: The code at line 57 was first introduced by commit
> :::::: 73b4390fb23456964201abda79f1210fe337d01a [MIPS] Routerboard 532: Support for base system
> 
> :::::: TO: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
> :::::: CC: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

From - Thu Nov 08 21:41:41 2018
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Newsgroups: gmane.linux.drivers.driver-project.devel,gmane.linux.kernel.pci,gmane.linux.hardware.nvdimm,gmane.linux.kernel.input,gmane.linux.drivers.devicetree,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v6 2/4] resource: Use list_head to link sibling resource
Date: Sun, 8 Jul 2018 20:48:22 +0300
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Cc: Nicolas Pitre <nicolas.pitre@linaro.org>, brijesh.singh@amd.com,
 Tom Lendacky <thomas.lendacky@amd.com>, David Airlie <airlied@linux.ie>,
 linux-pci@vger.kernel.org, richard.weiyang@gmail.com,
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To: Baoquan He <bhe@redhat.com>
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On Sun, Jul 8, 2018 at 5:59 AM, Baoquan He <bhe@redhat.com> wrote:
> On 07/05/18 at 01:00am, kbuild test robot wrote:

> However, I didn't find below branch. And tried to open it in web
> broswer, also failed.

While this is kinda valid point...

> Could you help have a look at this?

...isn't obvious that you didn't change the file mentioned in a report?
Just take latest linux-next and you will see.


>> All error/warnings (new ones prefixed by >>):
>>
>> >> arch/mips/pci/pci-rc32434.c:57:11: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
>>      .child = &rc32434_res_pci_mem2
>>               ^
>>    arch/mips/pci/pci-rc32434.c:57:11: note: (near initialization for 'rc32434_res_pci_mem1.child.next')
>> >> arch/mips/pci/pci-rc32434.c:51:47: warning: missing braces around initializer [-Wmissing-braces]
>>     static struct resource rc32434_res_pci_mem1 = {
>>                                                   ^
>>    arch/mips/pci/pci-rc32434.c:60:47: warning: missing braces around initializer [-Wmissing-braces]
>>     static struct resource rc32434_res_pci_mem2 = {
>>                                                   ^
>>    cc1: some warnings being treated as errors
>>
>> vim +57 arch/mips/pci/pci-rc32434.c
>>
>> 73b4390f Ralf Baechle 2008-07-16  50
>> 73b4390f Ralf Baechle 2008-07-16 @51  static struct resource rc32434_res_pci_mem1 = {
>> 73b4390f Ralf Baechle 2008-07-16  52          .name = "PCI MEM1",
>> 73b4390f Ralf Baechle 2008-07-16  53          .start = 0x50000000,
>> 73b4390f Ralf Baechle 2008-07-16  54          .end = 0x5FFFFFFF,
>> 73b4390f Ralf Baechle 2008-07-16  55          .flags = IORESOURCE_MEM,
>> 73b4390f Ralf Baechle 2008-07-16  56          .sibling = NULL,
>> 73b4390f Ralf Baechle 2008-07-16 @57          .child = &rc32434_res_pci_mem2
>> 73b4390f Ralf Baechle 2008-07-16  58  };
>> 73b4390f Ralf Baechle 2008-07-16  59
>>
>> :::::: The code at line 57 was first introduced by commit
>> :::::: 73b4390fb23456964201abda79f1210fe337d01a [MIPS] Routerboard 532: Support for base system
>>
>> :::::: TO: Ralf Baechle <ralf@linux-mips.org>
>> :::::: CC: Ralf Baechle <ralf@linux-mips.org>
>>
>> ---
>> 0-DAY kernel test infrastructure                Open Source Technology Center
>> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
>
>



-- 
With Best Regards,
Andy Shevchenko

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On 07/08/18 at 08:48pm, Andy Shevchenko wrote:
> On Sun, Jul 8, 2018 at 5:59 AM, Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> > On 07/05/18 at 01:00am, kbuild test robot wrote:
> 
> > However, I didn't find below branch. And tried to open it in web
> > broswer, also failed.
> 
> While this is kinda valid point...
> 
> > Could you help have a look at this?
> 
> ...isn't obvious that you didn't change the file mentioned in a report?
> Just take latest linux-next and you will see.

Yes, it's clear to me. Just want to use the way to cross compile them on
ia64 and mips, hope I can find out all missed places on these ARCHes.
Now I think I can apply patches on linux-next, and use the config
attached to compile. Thanks.

> 
> 
> >> All error/warnings (new ones prefixed by >>):
> >>
> >> >> arch/mips/pci/pci-rc32434.c:57:11: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
> >>      .child = &rc32434_res_pci_mem2
> >>               ^
> >>    arch/mips/pci/pci-rc32434.c:57:11: note: (near initialization for 'rc32434_res_pci_mem1.child.next')
> >> >> arch/mips/pci/pci-rc32434.c:51:47: warning: missing braces around initializer [-Wmissing-braces]
> >>     static struct resource rc32434_res_pci_mem1 = {
> >>                                                   ^
> >>    arch/mips/pci/pci-rc32434.c:60:47: warning: missing braces around initializer [-Wmissing-braces]
> >>     static struct resource rc32434_res_pci_mem2 = {
> >>                                                   ^
> >>    cc1: some warnings being treated as errors
> >>
> >> vim +57 arch/mips/pci/pci-rc32434.c
> >>
> >> 73b4390f Ralf Baechle 2008-07-16  50
> >> 73b4390f Ralf Baechle 2008-07-16 @51  static struct resource rc32434_res_pci_mem1 = {
> >> 73b4390f Ralf Baechle 2008-07-16  52          .name = "PCI MEM1",
> >> 73b4390f Ralf Baechle 2008-07-16  53          .start = 0x50000000,
> >> 73b4390f Ralf Baechle 2008-07-16  54          .end = 0x5FFFFFFF,
> >> 73b4390f Ralf Baechle 2008-07-16  55          .flags = IORESOURCE_MEM,
> >> 73b4390f Ralf Baechle 2008-07-16  56          .sibling = NULL,
> >> 73b4390f Ralf Baechle 2008-07-16 @57          .child = &rc32434_res_pci_mem2
> >> 73b4390f Ralf Baechle 2008-07-16  58  };
> >> 73b4390f Ralf Baechle 2008-07-16  59
> >>
> >> :::::: The code at line 57 was first introduced by commit
> >> :::::: 73b4390fb23456964201abda79f1210fe337d01a [MIPS] Routerboard 532: Support for base system
> >>
> >> :::::: TO: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
> >> :::::: CC: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
> >>
> >> ---
> >> 0-DAY kernel test infrastructure                Open Source Technology Center
> >> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
> >
> >
> 
> 
> 
> -- 
> With Best Regards,
> Andy Shevchenko

From - Thu Nov 08 21:41:41 2018
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[CC hugetlb guys - http://lkml.kernel.org/r/20180705110716.3919-1-alex@ghiti.fr]

On Thu 05-07-18 11:07:05, Alexandre Ghiti wrote:
> In order to reduce copy/paste of functions across architectures and then
> make riscv hugetlb port (and future ports) simpler and smaller, this
> patchset intends to factorize the numerous hugetlb primitives that are
> defined across all the architectures.
> 
> Except for prepare_hugepage_range, this patchset moves the versions that
> are just pass-through to standard pte primitives into
> asm-generic/hugetlb.h by using the same #ifdef semantic that can be
> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.
> 
> s390 architecture has not been tackled in this serie since it does not
> use asm-generic/hugetlb.h at all.
> powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).
> 
> This patchset has been compiled on x86 only. 
> 
> Changelog:
> 
> v4:
>   Fix powerpc build error due to misplacing of #include
>   <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as
>   pointed by Christophe Leroy.
> 
> v1, v2, v3:
>   Same version, just problems with email provider and misuse of
>   --batch-size option of git send-email
> 
> Alexandre Ghiti (11):
>   hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
>   hugetlb: Introduce generic version of hugetlb_free_pgd_range
>   hugetlb: Introduce generic version of set_huge_pte_at
>   hugetlb: Introduce generic version of huge_ptep_get_and_clear
>   hugetlb: Introduce generic version of huge_ptep_clear_flush
>   hugetlb: Introduce generic version of huge_pte_none
>   hugetlb: Introduce generic version of huge_pte_wrprotect
>   hugetlb: Introduce generic version of prepare_hugepage_range
>   hugetlb: Introduce generic version of huge_ptep_set_wrprotect
>   hugetlb: Introduce generic version of huge_ptep_set_access_flags
>   hugetlb: Introduce generic version of huge_ptep_get
> 
>  arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
>  arch/arm/include/asm/hugetlb.h               | 33 +----------
>  arch/arm64/include/asm/hugetlb.h             | 39 +++---------
>  arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
>  arch/mips/include/asm/hugetlb.h              | 40 +++----------
>  arch/parisc/include/asm/hugetlb.h            | 33 +++--------
>  arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
>  arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
>  arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
>  arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
>  arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
>  arch/sh/include/asm/hugetlb.h                | 54 ++---------------
>  arch/sparc/include/asm/hugetlb.h             | 40 +++----------
>  arch/x86/include/asm/hugetlb.h               | 72 +----------------------
>  include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
>  15 files changed, 143 insertions(+), 384 deletions(-)
> 
> -- 
> 2.16.2

-- 
Michal Hocko
SUSE Labs


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Subject: Re: [kbuild-all] [PATCH v6 2/4] resource: Use list_head to link
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Date: Tue, 10 Jul 2018 08:59:28 +0800
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To: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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Hi,

On 07/08, Baoquan He wrote:
>Hi,
>
>On 07/05/18 at 01:00am, kbuild test robot wrote:
>> Hi Baoquan,
>> 
>> I love your patch! Yet something to improve:
>> 
>> [auto build test ERROR on linus/master]
>> [also build test ERROR on v4.18-rc3 next-20180704]
>> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>
>Thanks for telling. 
>
>I cloned 0day-ci/linut to my local pc.
>https://github.com/0day-ci/linux.git
>
>However, I didn't find below branch. And tried to open it in web
>broswer, also failed.
>

Sorry for the inconvenience, 0day bot didn't push the branch to github successfully,
Just push it manually, you can have a try again.

Thanks,
Xiaolong


>
>> url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180704-121402
>> config: mips-rb532_defconfig (attached as .config)
>> compiler: mipsel-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
>> reproduce:
>>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>>         chmod +x ~/bin/make.cross
>>         # save the attached .config to linux build tree
>>         GCC_VERSION=7.2.0 make.cross ARCH=mips 
>
>I did find a old one which is for the old version 5 post.
>
>[bhe@linux]$ git remote -v
>0day-ci	https://github.com/0day-ci/linux.git (fetch)
>0day-ci	https://github.com/0day-ci/linux.git (push)
>[bhe@dhcp-128-28 linux]$ git branch -a| grep Baoquan| grep resource
>  remotes/0day-ci/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180612-113600
>
>Could you help have a look at this?
>
>Thanks
>Baoquan
>
>> 
>> All error/warnings (new ones prefixed by >>):
>> 
>> >> arch/mips/pci/pci-rc32434.c:57:11: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
>>      .child = &rc32434_res_pci_mem2
>>               ^
>>    arch/mips/pci/pci-rc32434.c:57:11: note: (near initialization for 'rc32434_res_pci_mem1.child.next')
>> >> arch/mips/pci/pci-rc32434.c:51:47: warning: missing braces around initializer [-Wmissing-braces]
>>     static struct resource rc32434_res_pci_mem1 = {
>>                                                   ^
>>    arch/mips/pci/pci-rc32434.c:60:47: warning: missing braces around initializer [-Wmissing-braces]
>>     static struct resource rc32434_res_pci_mem2 = {
>>                                                   ^
>>    cc1: some warnings being treated as errors
>> 
>> vim +57 arch/mips/pci/pci-rc32434.c
>> 
>> 73b4390f Ralf Baechle 2008-07-16  50  
>> 73b4390f Ralf Baechle 2008-07-16 @51  static struct resource rc32434_res_pci_mem1 = {
>> 73b4390f Ralf Baechle 2008-07-16  52  	.name = "PCI MEM1",
>> 73b4390f Ralf Baechle 2008-07-16  53  	.start = 0x50000000,
>> 73b4390f Ralf Baechle 2008-07-16  54  	.end = 0x5FFFFFFF,
>> 73b4390f Ralf Baechle 2008-07-16  55  	.flags = IORESOURCE_MEM,
>> 73b4390f Ralf Baechle 2008-07-16  56  	.sibling = NULL,
>> 73b4390f Ralf Baechle 2008-07-16 @57  	.child = &rc32434_res_pci_mem2
>> 73b4390f Ralf Baechle 2008-07-16  58  };
>> 73b4390f Ralf Baechle 2008-07-16  59  
>> 
>> :::::: The code at line 57 was first introduced by commit
>> :::::: 73b4390fb23456964201abda79f1210fe337d01a [MIPS] Routerboard 532: Support for base system
>> 
>> :::::: TO: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
>> :::::: CC: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
>> 
>> ---
>> 0-DAY kernel test infrastructure                Open Source Technology Center
>> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
>
>
>_______________________________________________
>kbuild-all mailing list
>kbuild-all-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org
>https://lists.01.org/mailman/listinfo/kbuild-all

From - Thu Nov 08 21:41:42 2018
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From: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [kbuild-all] [PATCH v6 2/4] resource: Use list_head to link
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On 07/10/18 at 08:59am, Ye Xiaolong wrote:
> Hi,
> 
> On 07/08, Baoquan He wrote:
> >Hi,
> >
> >On 07/05/18 at 01:00am, kbuild test robot wrote:
> >> Hi Baoquan,
> >> 
> >> I love your patch! Yet something to improve:
> >> 
> >> [auto build test ERROR on linus/master]
> >> [also build test ERROR on v4.18-rc3 next-20180704]
> >> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> >
> >Thanks for telling. 
> >
> >I cloned 0day-ci/linut to my local pc.
> >https://github.com/0day-ci/linux.git
> >
> >However, I didn't find below branch. And tried to open it in web
> >broswer, also failed.
> >
> 
> Sorry for the inconvenience, 0day bot didn't push the branch to github successfully,
> Just push it manually, you can have a try again.

Thanks, Xiaolong, I have applied them on top of linux-next/master, and
copy the config file attached, and run the command to reproduce as
suggested. Now I have fixed all those issues reported, will repost.

> 
> >
> >> url:    https://github.com/0day-ci/linux/commits/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180704-121402
> >> config: mips-rb532_defconfig (attached as .config)
> >> compiler: mipsel-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
> >> reproduce:
> >>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> >>         chmod +x ~/bin/make.cross
> >>         # save the attached .config to linux build tree
> >>         GCC_VERSION=7.2.0 make.cross ARCH=mips 
> >
> >I did find a old one which is for the old version 5 post.
> >
> >[bhe@linux]$ git remote -v
> >0day-ci	https://github.com/0day-ci/linux.git (fetch)
> >0day-ci	https://github.com/0day-ci/linux.git (push)
> >[bhe@dhcp-128-28 linux]$ git branch -a| grep Baoquan| grep resource
> >  remotes/0day-ci/Baoquan-He/resource-Use-list_head-to-link-sibling-resource/20180612-113600
> >
> >Could you help have a look at this?
> >
> >Thanks
> >Baoquan
> >
> >> 
> >> All error/warnings (new ones prefixed by >>):
> >> 
> >> >> arch/mips/pci/pci-rc32434.c:57:11: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
> >>      .child = &rc32434_res_pci_mem2
> >>               ^
> >>    arch/mips/pci/pci-rc32434.c:57:11: note: (near initialization for 'rc32434_res_pci_mem1.child.next')
> >> >> arch/mips/pci/pci-rc32434.c:51:47: warning: missing braces around initializer [-Wmissing-braces]
> >>     static struct resource rc32434_res_pci_mem1 = {
> >>                                                   ^
> >>    arch/mips/pci/pci-rc32434.c:60:47: warning: missing braces around initializer [-Wmissing-braces]
> >>     static struct resource rc32434_res_pci_mem2 = {
> >>                                                   ^
> >>    cc1: some warnings being treated as errors
> >> 
> >> vim +57 arch/mips/pci/pci-rc32434.c
> >> 
> >> 73b4390f Ralf Baechle 2008-07-16  50  
> >> 73b4390f Ralf Baechle 2008-07-16 @51  static struct resource rc32434_res_pci_mem1 = {
> >> 73b4390f Ralf Baechle 2008-07-16  52  	.name = "PCI MEM1",
> >> 73b4390f Ralf Baechle 2008-07-16  53  	.start = 0x50000000,
> >> 73b4390f Ralf Baechle 2008-07-16  54  	.end = 0x5FFFFFFF,
> >> 73b4390f Ralf Baechle 2008-07-16  55  	.flags = IORESOURCE_MEM,
> >> 73b4390f Ralf Baechle 2008-07-16  56  	.sibling = NULL,
> >> 73b4390f Ralf Baechle 2008-07-16 @57  	.child = &rc32434_res_pci_mem2
> >> 73b4390f Ralf Baechle 2008-07-16  58  };
> >> 73b4390f Ralf Baechle 2008-07-16  59  
> >> 
> >> :::::: The code at line 57 was first introduced by commit
> >> :::::: 73b4390fb23456964201abda79f1210fe337d01a [MIPS] Routerboard 532: Support for base system
> >> 
> >> :::::: TO: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
> >> :::::: CC: Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>
> >> 
> >> ---
> >> 0-DAY kernel test infrastructure                Open Source Technology Center
> >> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
> >
> >
> >_______________________________________________
> >kbuild-all mailing list
> >kbuild-all-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org
> >https://lists.01.org/mailman/listinfo/kbuild-all

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ping?  Any comments?

On Tue, Jun 19, 2018 at 09:04:52AM +0200, Christoph Hellwig wrote:
> This should address all the comments raised last time.
> 
> 
> _______________________________________________
> iommu mailing list
> iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
> https://lists.linuxfoundation.org/mailman/listinfo/iommu
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Use the existing %pad printk format to print dma_addr_t values.
This avoids the following warnings when compiling on the parisc platform:

warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/net/ethernet/cavium/liquidio/request_manager.c b/drivers/net/ethernet/cavium/liquidio/request_manager.c
index 1f2e75da28f8..d5d9e47daa4b 100644
--- a/drivers/net/ethernet/cavium/liquidio/request_manager.c
+++ b/drivers/net/ethernet/cavium/liquidio/request_manager.c
@@ -110,8 +110,8 @@ int octeon_init_instr_queue(struct octeon_device *oct,
 
 	memset(iq->request_list, 0, sizeof(*iq->request_list) * num_descs);
 
-	dev_dbg(&oct->pci_dev->dev, "IQ[%d]: base: %p basedma: %llx count: %d\n",
-		iq_no, iq->base_addr, iq->base_addr_dma, iq->max_count);
+	dev_dbg(&oct->pci_dev->dev, "IQ[%d]: base: %p basedma: %pad count: %d\n",
+		iq_no, iq->base_addr, &iq->base_addr_dma, iq->max_count);
 
 	iq->txpciq.u64 = txpciq.u64;
 	iq->fill_threshold = (u32)conf->db_min;


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From: Felix Manlunas <felix.manlunas@cavium.com>
Newsgroups: gmane.linux.network,gmane.linux.ports.parisc
Subject: Re: [PATCH] liquidio: Use %pad printk format for dma_addr_t values
Date: Thu, 12 Jul 2018 17:06:48 -0700
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Xref: news.gmane.org gmane.linux.network:544248 gmane.linux.ports.parisc:28783
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On Thu, Jul 12, 2018 at 10:36:29PM +0200, Helge Deller wrote:
> Use the existing %pad printk format to print dma_addr_t values.
> This avoids the following warnings when compiling on the parisc platform:
> 
> warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> 
> diff --git a/drivers/net/ethernet/cavium/liquidio/request_manager.c b/drivers/net/ethernet/cavium/liquidio/request_manager.c
> index 1f2e75da28f8..d5d9e47daa4b 100644
> --- a/drivers/net/ethernet/cavium/liquidio/request_manager.c
> +++ b/drivers/net/ethernet/cavium/liquidio/request_manager.c
> @@ -110,8 +110,8 @@ int octeon_init_instr_queue(struct octeon_device *oct,
> 
>  	memset(iq->request_list, 0, sizeof(*iq->request_list) * num_descs);
> 
> -	dev_dbg(&oct->pci_dev->dev, "IQ[%d]: base: %p basedma: %llx count: %d\n",
> -		iq_no, iq->base_addr, iq->base_addr_dma, iq->max_count);
> +	dev_dbg(&oct->pci_dev->dev, "IQ[%d]: base: %p basedma: %pad count: %d\n",
> +		iq_no, iq->base_addr, &iq->base_addr_dma, iq->max_count);
> 
>  	iq->txpciq.u64 = txpciq.u64;
>  	iq->fill_threshold = (u32)conf->db_min;

Acked-by: Felix Manlunas <felix.manlunas@cavium.com>


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From: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
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Subject: Re: convert parisc to the generic dma-noncoherent code
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On 11.07.2018 17:34, Christoph Hellwig wrote:
> ping?  Any comments?

I applied those 3 patches on top of git head, and booted the
32-bit kernel on a HP 715/64 (PCX-L) and a HP B160L (PCX-L2).
On both machines I had problems with those drivers which use
DMA (I checked specifically the lasi NIC card, which is the 
main onboard NIC card in both machines).
Getting IP via DHCP was unreliable, pings on the same network 
to both machines gave lost packets, login via ssh sometimes failed
and so on.

So, there is definitively some cache-flush missing in this patchset.

I'm happy to test any further patches, but I'l be blocked at least
until end of next week. It would be good if James could do some 
testing on his PCX-machine too, since that machine is different
than mine.

Thanks for your efforts to clean that up!
Helge

> On Tue, Jun 19, 2018 at 09:04:52AM +0200, Christoph Hellwig wrote:
>> This should address all the comments raised last time.
For the record: Here is the link to the patchbundle:
https://patchwork.kernel.org/bundle/helge/DMA_OP/

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From: Helge Deller <deller@gmx.de>
Date: Thu, 12 Jul 2018 22:36:29 +0200

> Use the existing %pad printk format to print dma_addr_t values.
> This avoids the following warnings when compiling on the parisc platform:
> 
> warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
> 
> Signed-off-by: Helge Deller <deller@gmx.de>

Applied.


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On Sun, Jul 15, 2018 at 12:29:37PM -0400, John David Anglin wrote:
> On 2018-07-13 4:14 AM, Helge Deller wrote:
>> On 11.07.2018 17:34, Christoph Hellwig wrote:
>>> ping?  Any comments?
>> I applied those 3 patches on top of git head, and booted the
>> 32-bit kernel on a HP 715/64 (PCX-L) and a HP B160L (PCX-L2).
>> On both machines I had problems with those drivers which use
>> DMA (I checked specifically the lasi NIC card, which is the
>> main onboard NIC card in both machines).
>> Getting IP via DHCP was unreliable, pings on the same network
>> to both machines gave lost packets, login via ssh sometimes failed
>> and so on.
>>
>> So, there is definitively some cache-flush missing in this patchset.
> Possibly, the code should use flush_kernel_vmap_range() as it purges the =

> TLB entries used
> for the cache flush.=A0 Some of the routines in pci-dma.c currently use i=
t.

That might be worth a try and is already discussed in my description.

Also it might be good to check that the last patch really is the culprit,
I'm pretty certain it is, but a double check never hurts.

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This patchset is doing:
1) Move reparent_resources() to kernel/resource.c to clean up duplicated
   code in arch/microblaze/pci/pci-common.c and
   arch/powerpc/kernel/pci-common.c .
2) Replace struct resource's sibling list from singly linked list to
   list_head. Clearing out those pointer operation within singly linked
   list for better code readability.
2) Based on list_head replacement, add a new function
   walk_system_ram_res_rev() which can does reversed iteration on
   iomem_resource's siblings.
3) Change kexec_file loading to search system RAM top down for kernel
   loadin, using walk_system_ram_res_rev().

Note:
This patchset only passed testing on  x86_64 arch with network
enabling. The thing we need pay attetion to is that a root resource's
child member need be initialized specifically with LIST_HEAD_INIT() if
statically defined or INIT_LIST_HEAD() for dynamically definition. Here
Just like we do for iomem_resource/ioport_resource, or the change in
get_pci_domain_busn_res().

v6:
http://lkml.kernel.org/r/20180704041038.8190-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org

v5:
http://lkml.kernel.org/r/20180612032831.29747-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org

v4:
http://lkml.kernel.org/r/20180507063224.24229-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org

v3:
http://lkml.kernel.org/r/20180419001848.3041-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org

v2:
http://lkml.kernel.org/r/20180408024724.16812-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org

v1:
http://lkml.kernel.org/r/20180322033722.9279-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org

Changelog:
v6->v7:
  Fix code bugs that test robot reported on mips and ia64.

  Add error code description in reparent_resources() according to
  Andy's comment, and fix minor log typo.
v5->v6:
  Fix code style problems in reparent_resources() and use existing
  error codes, according to Andy's suggestion.

  Fix bugs test robot reported.

v4->v5:
  Add new patch 0001 to move duplicated reparent_resources() to
  kernel/resource.c to make it be shared by different ARCH-es.

  Fix several code bugs reported by test robot on ARCH powerpc and
  microblaze.
v3->v4:
  Fix several bugs test robot reported. Rewrite cover letter and patch
  log according to reviewer's comment.

v2->v3:
  Rename resource functions first_child() and sibling() to
  resource_first_chils() and resource_sibling(). Dan suggested this.

  Move resource_first_chils() and resource_sibling() to linux/ioport.h
  and make them as inline function. Rob suggested this. Accordingly add
  linux/list.h including in linux/ioport.h, please help review if this
  bring efficiency degradation or code redundancy.

  The change on struct resource {} bring two pointers of size increase,
  mention this in git log to make it more specifically, Rob suggested
  this.

v1->v2:
  Use list_head instead to link resource siblings. This is suggested by
  Andrew.

  Rewrite walk_system_ram_res_rev() after list_head is taken to link
  resouce siblings.

Baoquan He (4):
  resource: Move reparent_resources() to kernel/resource.c and make it
    public
  resource: Use list_head to link sibling resource
  resource: add walk_system_ram_res_rev()
  kexec_file: Load kernel at top of system RAM if required

 arch/arm/plat-samsung/pm-check.c            |   6 +-
 arch/ia64/sn/kernel/io_init.c               |   2 +-
 arch/microblaze/pci/pci-common.c            |  41 +----
 arch/mips/pci/pci-rc32434.c                 |  12 +-
 arch/powerpc/kernel/pci-common.c            |  39 +---
 arch/sparc/kernel/ioport.c                  |   2 +-
 arch/xtensa/include/asm/pci-bridge.h        |   4 +-
 drivers/eisa/eisa-bus.c                     |   2 +
 drivers/gpu/drm/drm_memory.c                |   3 +-
 drivers/gpu/drm/gma500/gtt.c                |   5 +-
 drivers/hv/vmbus_drv.c                      |  52 +++---
 drivers/input/joystick/iforce/iforce-main.c |   4 +-
 drivers/nvdimm/namespace_devs.c             |   6 +-
 drivers/nvdimm/nd.h                         |   5 +-
 drivers/of/address.c                        |   4 +-
 drivers/parisc/lba_pci.c                    |   4 +-
 drivers/pci/controller/vmd.c                |   8 +-
 drivers/pci/probe.c                         |   2 +
 drivers/pci/setup-bus.c                     |   2 +-
 include/linux/ioport.h                      |  21 ++-
 kernel/kexec_file.c                         |   2 +
 kernel/resource.c                           | 266 ++++++++++++++++++----------
 22 files changed, 260 insertions(+), 232 deletions(-)

-- 
2.13.6

From - Thu Nov 08 21:41:42 2018
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X-Mozilla-Keys:                                                                                 
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From: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH v7 1/4] resource: Move reparent_resources() to
 kernel/resource.c and make it public
Date: Wed, 18 Jul 2018 10:49:41 +0800
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reparent_resources() is duplicated in arch/microblaze/pci/pci-common.c
and arch/powerpc/kernel/pci-common.c, so move it to kernel/resource.c
so that it's shared.

Reviewed-by: Andy Shevchenko <andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Signed-off-by: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Michal Simek <monstr-pSz03upnqPeHXe+LvDLADg@public.gmane.org>
Cc: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Cc: Paul Mackerras <paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>
Cc: Michael Ellerman <mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>
Cc: linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
---
 arch/microblaze/pci/pci-common.c | 37 -----------------------------------
 arch/powerpc/kernel/pci-common.c | 35 ---------------------------------
 include/linux/ioport.h           |  1 +
 kernel/resource.c                | 42 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 43 insertions(+), 72 deletions(-)

diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index f34346d56095..7899bafab064 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -619,43 +619,6 @@ int pcibios_add_device(struct pci_dev *dev)
 EXPORT_SYMBOL(pcibios_add_device);
 
 /*
- * Reparent resource children of pr that conflict with res
- * under res, and make res replace those children.
- */
-static int __init reparent_resources(struct resource *parent,
-				     struct resource *res)
-{
-	struct resource *p, **pp;
-	struct resource **firstpp = NULL;
-
-	for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
-		if (p->end < res->start)
-			continue;
-		if (res->end < p->start)
-			break;
-		if (p->start < res->start || p->end > res->end)
-			return -1;	/* not completely contained */
-		if (firstpp == NULL)
-			firstpp = pp;
-	}
-	if (firstpp == NULL)
-		return -1;	/* didn't find any conflicting entries? */
-	res->parent = parent;
-	res->child = *firstpp;
-	res->sibling = *pp;
-	*firstpp = res;
-	*pp = NULL;
-	for (p = res->child; p != NULL; p = p->sibling) {
-		p->parent = res;
-		pr_debug("PCI: Reparented %s [%llx..%llx] under %s\n",
-			 p->name,
-			 (unsigned long long)p->start,
-			 (unsigned long long)p->end, res->name);
-	}
-	return 0;
-}
-
-/*
  *  Handle resources of PCI devices.  If the world were perfect, we could
  *  just allocate all the resource regions and do nothing more.  It isn't.
  *  On the other hand, we cannot just re-allocate all devices, as it would
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index fe9733ffffaa..926035bb378d 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1088,41 +1088,6 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
 EXPORT_SYMBOL(pcibios_align_resource);
 
 /*
- * Reparent resource children of pr that conflict with res
- * under res, and make res replace those children.
- */
-static int reparent_resources(struct resource *parent,
-				     struct resource *res)
-{
-	struct resource *p, **pp;
-	struct resource **firstpp = NULL;
-
-	for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
-		if (p->end < res->start)
-			continue;
-		if (res->end < p->start)
-			break;
-		if (p->start < res->start || p->end > res->end)
-			return -1;	/* not completely contained */
-		if (firstpp == NULL)
-			firstpp = pp;
-	}
-	if (firstpp == NULL)
-		return -1;	/* didn't find any conflicting entries? */
-	res->parent = parent;
-	res->child = *firstpp;
-	res->sibling = *pp;
-	*firstpp = res;
-	*pp = NULL;
-	for (p = res->child; p != NULL; p = p->sibling) {
-		p->parent = res;
-		pr_debug("PCI: Reparented %s %pR under %s\n",
-			 p->name, p, res->name);
-	}
-	return 0;
-}
-
-/*
  *  Handle resources of PCI devices.  If the world were perfect, we could
  *  just allocate all the resource regions and do nothing more.  It isn't.
  *  On the other hand, we cannot just re-allocate all devices, as it would
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index da0ebaec25f0..dfdcd0bfe54e 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -192,6 +192,7 @@ extern int allocate_resource(struct resource *root, struct resource *new,
 struct resource *lookup_resource(struct resource *root, resource_size_t start);
 int adjust_resource(struct resource *res, resource_size_t start,
 		    resource_size_t size);
+int reparent_resources(struct resource *parent, struct resource *res);
 resource_size_t resource_alignment(struct resource *res);
 static inline resource_size_t resource_size(const struct resource *res)
 {
diff --git a/kernel/resource.c b/kernel/resource.c
index 30e1bc68503b..81ccd19c1d9f 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -983,6 +983,48 @@ int adjust_resource(struct resource *res, resource_size_t start,
 }
 EXPORT_SYMBOL(adjust_resource);
 
+/**
+ * reparent_resources - reparent resource children of parent that res covers
+ * @parent: parent resource descriptor
+ * @res: resource descriptor desired by caller
+ *
+ * Returns 0 on success, -ENOTSUPP if child resource is not completely
+ * contained by 'res', -ECANCELED if no any conflicting entry found.
+ *
+ * Reparent resource children of 'parent' that conflict with 'res'
+ * under 'res', and make 'res' replace those children.
+ */
+int reparent_resources(struct resource *parent, struct resource *res)
+{
+	struct resource *p, **pp;
+	struct resource **firstpp = NULL;
+
+	for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
+		if (p->end < res->start)
+			continue;
+		if (res->end < p->start)
+			break;
+		if (p->start < res->start || p->end > res->end)
+			return -ENOTSUPP;	/* not completely contained */
+		if (firstpp == NULL)
+			firstpp = pp;
+	}
+	if (firstpp == NULL)
+		return -ECANCELED; /* didn't find any conflicting entries? */
+	res->parent = parent;
+	res->child = *firstpp;
+	res->sibling = *pp;
+	*firstpp = res;
+	*pp = NULL;
+	for (p = res->child; p != NULL; p = p->sibling) {
+		p->parent = res;
+		pr_debug("PCI: Reparented %s %pR under %s\n",
+			 p->name, p, res->name);
+	}
+	return 0;
+}
+EXPORT_SYMBOL(reparent_resources);
+
 static void __init __reserve_region_with_split(struct resource *root,
 		resource_size_t start, resource_size_t end,
 		const char *name)
-- 
2.13.6

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From - Thu Nov 08 21:41:43 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel
Subject: [PATCH v7 3/4] resource: add walk_system_ram_res_rev()
Date: Wed, 18 Jul 2018 10:49:43 +0800
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Approved: news@gmane.org
Message-ID: <20180718024944.577-4-bhe@redhat.com>
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Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.kernel,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel.kexec,gmane.linux.ports.ppc64.devel
Subject: [PATCH v7 4/4] kexec_file: Load kernel at top of system RAM if
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Archived-At: <http://permalink.gmane.org/gmane.linux.hardware.nvdimm/11033>

For kexec_file loading, if kexec_buf.top_down is 'true', the memory which
is used to load kernel/initrd/purgatory is supposed to be allocated from
top to down. This is what we have been doing all along in the old kexec
loading interface and the kexec loading is still default setting in some
distributions. However, the current kexec_file loading interface doesn't
do like this. The function arch_kexec_walk_mem() it calls ignores checking
kexec_buf.top_down, but calls walk_system_ram_res() directly to go through
all resources of System RAM from bottom to up, to try to find memory region
which can contain the specific kexec buffer, then call locate_mem_hole_callback()
to allocate memory in that found memory region from top to down. This brings
confusion especially when KASLR is widely supported , users have to make clear
why kexec/kdump kernel loading position is different between these two
interfaces in order to exclude unnecessary noises. Hence these two interfaces
need be unified on behaviour.

Here add checking if kexec_buf.top_down is 'true' in arch_kexec_walk_mem(),
if yes, call the newly added walk_system_ram_res_rev() to find memory region
from top to down to load kernel.

Signed-off-by: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Eric Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
Cc: Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Dave Young <dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Cc: Yinghai Lu <yinghai-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
---
 kernel/kexec_file.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index c6a3b6851372..75226c1d08ce 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -518,6 +518,8 @@ int __weak arch_kexec_walk_mem(struct kexec_buf *kbuf,
 					   IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY,
 					   crashk_res.start, crashk_res.end,
 					   kbuf, func);
+	else if (kbuf->top_down)
+		return walk_system_ram_res_rev(0, ULONG_MAX, kbuf, func);
 	else
 		return walk_system_ram_res(0, ULONG_MAX, kbuf, func);
 }
-- 
2.13.6

From - Thu Nov 08 21:41:43 2018
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From: Andy Shevchenko <andy.shevchenko@gmail.com>
Newsgroups: gmane.linux.drivers.driver-project.devel,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.hardware.nvdimm,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v7 1/4] resource: Move reparent_resources() to
 kernel/resource.c and make it public
Date: Wed, 18 Jul 2018 19:36:17 +0300
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Cc: Nicolas Pitre <nicolas.pitre@linaro.org>, brijesh.singh@amd.com,
 devicetree <devicetree@vger.kernel.org>, David Airlie <airlied@linux.ie>,
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To: Baoquan He <bhe@redhat.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.drivers.driver-project.devel/120441>

On Wed, Jul 18, 2018 at 5:49 AM, Baoquan He <bhe@redhat.com> wrote:
> reparent_resources() is duplicated in arch/microblaze/pci/pci-common.c
> and arch/powerpc/kernel/pci-common.c, so move it to kernel/resource.c
> so that it's shared.

Some minor stuff.

> +/**
> + * reparent_resources - reparent resource children of parent that res covers
> + * @parent: parent resource descriptor
> + * @res: resource descriptor desired by caller
> + *
> + * Returns 0 on success, -ENOTSUPP if child resource is not completely
> + * contained by 'res', -ECANCELED if no any conflicting entry found.

'res' -> @res

> + *
> + * Reparent resource children of 'parent' that conflict with 'res'

Ditto + 'parent' -> @parent

> + * under 'res', and make 'res' replace those children.

Ditto.

> + */
> +int reparent_resources(struct resource *parent, struct resource *res)
> +{
> +       struct resource *p, **pp;
> +       struct resource **firstpp = NULL;
> +
> +       for (pp = &parent->child; (p = *pp) != NULL; pp = &p->sibling) {
> +               if (p->end < res->start)
> +                       continue;
> +               if (res->end < p->start)
> +                       break;
> +               if (p->start < res->start || p->end > res->end)
> +                       return -ENOTSUPP;       /* not completely contained */
> +               if (firstpp == NULL)
> +                       firstpp = pp;
> +       }
> +       if (firstpp == NULL)
> +               return -ECANCELED; /* didn't find any conflicting entries? */
> +       res->parent = parent;
> +       res->child = *firstpp;
> +       res->sibling = *pp;
> +       *firstpp = res;
> +       *pp = NULL;
> +       for (p = res->child; p != NULL; p = p->sibling) {
> +               p->parent = res;

> +               pr_debug("PCI: Reparented %s %pR under %s\n",
> +                        p->name, p, res->name);

Now, PCI is a bit confusing here.

> +       }
> +       return 0;
> +}
> +EXPORT_SYMBOL(reparent_resources);
> +
>  static void __init __reserve_region_with_split(struct resource *root,
>                 resource_size_t start, resource_size_t end,
>                 const char *name)
> --
> 2.13.6
>



-- 
With Best Regards,
Andy Shevchenko

From - Thu Nov 08 21:41:43 2018
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Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v7 1/4] resource: Move reparent_resources() to
 kernel/resource.c and make it public
Date: Wed, 18 Jul 2018 19:37:24 +0300
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Cc: Nicolas Pitre <nicolas.pitre-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, brijesh.singh-5C7GfCeVMHo@public.gmane.org,
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 Gustavo Padovan <gustavo-THi1TnShQwVAfugRpC6u6w@public.gmane.org>, Borislav Petkov <bp-l3A5Bk7waGM@public.gmane.org>,
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 Maarten Lankhorst <maarten.lankhorst-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
 Josh Triplett <josh@joshtri
To: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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On Wed, Jul 18, 2018 at 7:36 PM, Andy Shevchenko
<andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On Wed, Jul 18, 2018 at 5:49 AM, Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
>> reparent_resources() is duplicated in arch/microblaze/pci/pci-common.c
>> and arch/powerpc/kernel/pci-common.c, so move it to kernel/resource.c
>> so that it's shared.

>> + * Returns 0 on success, -ENOTSUPP if child resource is not completely
>> + * contained by 'res', -ECANCELED if no any conflicting entry found.

You also can refer to constants by prefixing them with %, e.g. %-ENOTSUPP.
But this is up to you completely.

-- 
With Best Regards,
Andy Shevchenko

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Subject: Re: [PATCH v7 4/4] kexec_file: Load kernel at top of system RAM if
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To: Baoquan He <bhe@redhat.com>
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On Wed, 18 Jul 2018 10:49:44 +0800 Baoquan He <bhe@redhat.com> wrote:

> For kexec_file loading, if kexec_buf.top_down is 'true', the memory which
> is used to load kernel/initrd/purgatory is supposed to be allocated from
> top to down. This is what we have been doing all along in the old kexec
> loading interface and the kexec loading is still default setting in some
> distributions. However, the current kexec_file loading interface doesn't
> do like this. The function arch_kexec_walk_mem() it calls ignores checking
> kexec_buf.top_down, but calls walk_system_ram_res() directly to go through
> all resources of System RAM from bottom to up, to try to find memory region
> which can contain the specific kexec buffer, then call locate_mem_hole_callback()
> to allocate memory in that found memory region from top to down. This brings
> confusion especially when KASLR is widely supported , users have to make clear
> why kexec/kdump kernel loading position is different between these two
> interfaces in order to exclude unnecessary noises. Hence these two interfaces
> need be unified on behaviour.

As far as I can tell, the above is the whole reason for the patchset,
yes?  To avoid confusing users.

Is that sufficient?  Can we instead simplify their lives by providing
better documentation or informative printks or better Kconfig text,
etc?

And who *are* the people who are performing this configuration?  Random
system administrators?  Linux distro engineers?  If the latter then
they presumably aren't easily confused!

In other words, I'm trying to understand how much benefit this patchset
will provide to our users as a whole.



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Subject: Re: [PATCH v7 4/4] kexec_file: Load kernel at top of system RAM if
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To: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
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Hi Andrew,

On 07/18/18 at 03:33pm, Andrew Morton wrote:
> On Wed, 18 Jul 2018 10:49:44 +0800 Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> 
> > For kexec_file loading, if kexec_buf.top_down is 'true', the memory which
> > is used to load kernel/initrd/purgatory is supposed to be allocated from
> > top to down. This is what we have been doing all along in the old kexec
> > loading interface and the kexec loading is still default setting in some
> > distributions. However, the current kexec_file loading interface doesn't
> > do like this. The function arch_kexec_walk_mem() it calls ignores checking
> > kexec_buf.top_down, but calls walk_system_ram_res() directly to go through
> > all resources of System RAM from bottom to up, to try to find memory region
> > which can contain the specific kexec buffer, then call locate_mem_hole_callback()
> > to allocate memory in that found memory region from top to down. This brings
> > confusion especially when KASLR is widely supported , users have to make clear
> > why kexec/kdump kernel loading position is different between these two
> > interfaces in order to exclude unnecessary noises. Hence these two interfaces
> > need be unified on behaviour.
> 
> As far as I can tell, the above is the whole reason for the patchset,
> yes?  To avoid confusing users.


In fact, it's not just trying to avoid confusing users. Kexec loading
and kexec_file loading are just do the same thing in essence. Just we
need do kernel image verification on uefi system, have to port kexec
loading code to kernel. 

Kexec has been a formal feature in our distro, and customers owning
those kind of very large machine can make use of this feature to speed
up the reboot process. On uefi machine, the kexec_file loading will
search place to put kernel under 4G from top to down. As we know, the
1st 4G space is DMA32 ZONE, dma, pci mmcfg, bios etc all try to consume
it. It may have possibility to not be able to find a usable space for
kernel/initrd. From the top down of the whole memory space, we don't
have this worry. 

And at the first post, I just posted below with AKASHI's
walk_system_ram_res_rev() version. Later you suggested to use
list_head to link child sibling of resource, see what the code change
looks like.
http://lkml.kernel.org/r/20180322033722.9279-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org

Then I posted v2
http://lkml.kernel.org/r/20180408024724.16812-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
Rob Herring mentioned that other components which has this tree struct
have planned to do the same thing, replacing the singly linked list with
list_head to link resource child sibling. Just quote Rob's words as
below. I think this could be another reason.

~~~~~ From Rob
The DT struct device_node also has the same tree structure with
parent, child, sibling pointers and converting to list_head had been
on the todo list for a while. ACPI also has some tree walking
functions (drivers/acpi/acpica/pstree.c). Perhaps there should be a
common tree struct and helpers defined either on top of list_head or a
~~~~~
new struct if that saves some size.

> 
> Is that sufficient?  Can we instead simplify their lives by providing
> better documentation or informative printks or better Kconfig text,
> etc?
> 
> And who *are* the people who are performing this configuration?  Random
> system administrators?  Linux distro engineers?  If the latter then
> they presumably aren't easily confused!

Kexec was invented for kernel developer to speed up their kernel
rebooting. Now high end sever admin, kernel developer and QE are also
keen to use it to reboot large box for faster feature testing, bug
debugging. Kernel dev could know this well, about kernel loading
position, admin or QE might not be aware of it very well. 

> 
> In other words, I'm trying to understand how much benefit this patchset
> will provide to our users as a whole.

Understood. The list_head replacing patch truly involes too many code
changes, it's risky. I am willing to try any idea from reviewers, won't
persuit they have to be accepted finally. If don't have a try, we don't
know what it looks like, and what impact it may have. I am fine to take
AKASHI's simple version of walk_system_ram_res_rev() to lower risk, even
though it could be a little bit low efficient.

Thanks
Baoquan

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From: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Newsgroups: gmane.linux.hardware.nvdimm,gmane.linux.drivers.devicetree,gmane.linux.kernel.pci,gmane.linux.kernel.input,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v7 1/4] resource: Move reparent_resources() to
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To: Andy Shevchenko <andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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On 07/18/18 at 07:37pm, Andy Shevchenko wrote:
> On Wed, Jul 18, 2018 at 7:36 PM, Andy Shevchenko
> <andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > On Wed, Jul 18, 2018 at 5:49 AM, Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> >> reparent_resources() is duplicated in arch/microblaze/pci/pci-common.c
> >> and arch/powerpc/kernel/pci-common.c, so move it to kernel/resource.c
> >> so that it's shared.
> 
> >> + * Returns 0 on success, -ENOTSUPP if child resource is not completely
> >> + * contained by 'res', -ECANCELED if no any conflicting entry found.
> 
> You also can refer to constants by prefixing them with %, e.g. %-ENOTSUPP.
> But this is up to you completely.

Thanks, will fix when repost. 

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Subject: Re: [PATCH v7 4/4] kexec_file: Load kernel at top of system RAM if
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To: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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On Thu, 19 Jul 2018 23:17:53 +0800 Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:

> Hi Andrew,
> 
> On 07/18/18 at 03:33pm, Andrew Morton wrote:
> > On Wed, 18 Jul 2018 10:49:44 +0800 Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> > 
> > > For kexec_file loading, if kexec_buf.top_down is 'true', the memory which
> > > is used to load kernel/initrd/purgatory is supposed to be allocated from
> > > top to down. This is what we have been doing all along in the old kexec
> > > loading interface and the kexec loading is still default setting in some
> > > distributions. However, the current kexec_file loading interface doesn't
> > > do like this. The function arch_kexec_walk_mem() it calls ignores checking
> > > kexec_buf.top_down, but calls walk_system_ram_res() directly to go through
> > > all resources of System RAM from bottom to up, to try to find memory region
> > > which can contain the specific kexec buffer, then call locate_mem_hole_callback()
> > > to allocate memory in that found memory region from top to down. This brings
> > > confusion especially when KASLR is widely supported , users have to make clear
> > > why kexec/kdump kernel loading position is different between these two
> > > interfaces in order to exclude unnecessary noises. Hence these two interfaces
> > > need be unified on behaviour.
> > 
> > As far as I can tell, the above is the whole reason for the patchset,
> > yes?  To avoid confusing users.
> 
> 
> In fact, it's not just trying to avoid confusing users. Kexec loading
> and kexec_file loading are just do the same thing in essence. Just we
> need do kernel image verification on uefi system, have to port kexec
> loading code to kernel. 
> 
> Kexec has been a formal feature in our distro, and customers owning
> those kind of very large machine can make use of this feature to speed
> up the reboot process. On uefi machine, the kexec_file loading will
> search place to put kernel under 4G from top to down. As we know, the
> 1st 4G space is DMA32 ZONE, dma, pci mmcfg, bios etc all try to consume
> it. It may have possibility to not be able to find a usable space for
> kernel/initrd. From the top down of the whole memory space, we don't
> have this worry. 
> 
> And at the first post, I just posted below with AKASHI's
> walk_system_ram_res_rev() version. Later you suggested to use
> list_head to link child sibling of resource, see what the code change
> looks like.
> http://lkml.kernel.org/r/20180322033722.9279-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
> 
> Then I posted v2
> http://lkml.kernel.org/r/20180408024724.16812-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
> Rob Herring mentioned that other components which has this tree struct
> have planned to do the same thing, replacing the singly linked list with
> list_head to link resource child sibling. Just quote Rob's words as
> below. I think this could be another reason.
> 
> ~~~~~ From Rob
> The DT struct device_node also has the same tree structure with
> parent, child, sibling pointers and converting to list_head had been
> on the todo list for a while. ACPI also has some tree walking
> functions (drivers/acpi/acpica/pstree.c). Perhaps there should be a
> common tree struct and helpers defined either on top of list_head or a
> ~~~~~
> new struct if that saves some size.

Please let's get all this into the changelogs?

> > 
> > Is that sufficient?  Can we instead simplify their lives by providing
> > better documentation or informative printks or better Kconfig text,
> > etc?
> > 
> > And who *are* the people who are performing this configuration?  Random
> > system administrators?  Linux distro engineers?  If the latter then
> > they presumably aren't easily confused!
> 
> Kexec was invented for kernel developer to speed up their kernel
> rebooting. Now high end sever admin, kernel developer and QE are also
> keen to use it to reboot large box for faster feature testing, bug
> debugging. Kernel dev could know this well, about kernel loading
> position, admin or QE might not be aware of it very well. 
> 
> > 
> > In other words, I'm trying to understand how much benefit this patchset
> > will provide to our users as a whole.
> 
> Understood. The list_head replacing patch truly involes too many code
> changes, it's risky. I am willing to try any idea from reviewers, won't
> persuit they have to be accepted finally. If don't have a try, we don't
> know what it looks like, and what impact it may have. I am fine to take
> AKASHI's simple version of walk_system_ram_res_rev() to lower risk, even
> though it could be a little bit low efficient.

The larger patch produces a better result.  We can handle it ;)

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From: Alex Ghiti <alex@ghiti.fr>
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Subject: Re: [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture
 primitives
Date: Fri, 20 Jul 2018 18:37:51 +0000
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Does anyone have any suggestion about those patches ?

On 07/09/2018 02:16 PM, Michal Hocko wrote:
> [CC hugetlb guys - http://lkml.kernel.org/r/20180705110716.3919-1-alex@ghiti.fr]
>
> On Thu 05-07-18 11:07:05, Alexandre Ghiti wrote:
>> In order to reduce copy/paste of functions across architectures and then
>> make riscv hugetlb port (and future ports) simpler and smaller, this
>> patchset intends to factorize the numerous hugetlb primitives that are
>> defined across all the architectures.
>>
>> Except for prepare_hugepage_range, this patchset moves the versions that
>> are just pass-through to standard pte primitives into
>> asm-generic/hugetlb.h by using the same #ifdef semantic that can be
>> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.
>>
>> s390 architecture has not been tackled in this serie since it does not
>> use asm-generic/hugetlb.h at all.
>> powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).
>>
>> This patchset has been compiled on x86 only.
>>
>> Changelog:
>>
>> v4:
>>    Fix powerpc build error due to misplacing of #include
>>    <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as
>>    pointed by Christophe Leroy.
>>
>> v1, v2, v3:
>>    Same version, just problems with email provider and misuse of
>>    --batch-size option of git send-email
>>
>> Alexandre Ghiti (11):
>>    hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
>>    hugetlb: Introduce generic version of hugetlb_free_pgd_range
>>    hugetlb: Introduce generic version of set_huge_pte_at
>>    hugetlb: Introduce generic version of huge_ptep_get_and_clear
>>    hugetlb: Introduce generic version of huge_ptep_clear_flush
>>    hugetlb: Introduce generic version of huge_pte_none
>>    hugetlb: Introduce generic version of huge_pte_wrprotect
>>    hugetlb: Introduce generic version of prepare_hugepage_range
>>    hugetlb: Introduce generic version of huge_ptep_set_wrprotect
>>    hugetlb: Introduce generic version of huge_ptep_set_access_flags
>>    hugetlb: Introduce generic version of huge_ptep_get
>>
>>   arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
>>   arch/arm/include/asm/hugetlb.h               | 33 +----------
>>   arch/arm64/include/asm/hugetlb.h             | 39 +++---------
>>   arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
>>   arch/mips/include/asm/hugetlb.h              | 40 +++----------
>>   arch/parisc/include/asm/hugetlb.h            | 33 +++--------
>>   arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
>>   arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
>>   arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
>>   arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
>>   arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
>>   arch/sh/include/asm/hugetlb.h                | 54 ++---------------
>>   arch/sparc/include/asm/hugetlb.h             | 40 +++----------
>>   arch/x86/include/asm/hugetlb.h               | 72 +----------------------
>>   include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
>>   15 files changed, 143 insertions(+), 384 deletions(-)
>>
>> -- 
>> 2.16.2



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From: Mike Kravetz <mike.kravetz@oracle.com>
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Subject: Re: [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture
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On 07/20/2018 11:37 AM, Alex Ghiti wrote:
> Does anyone have any suggestion about those patches ?

I only took a quick look.  From the hugetlb perspective, I like the
idea of moving routines to a common file.  If any of the arch owners
(or anyone else) agree, I can do a review of the series.
-- 
Mike Kravetz

> On 07/09/2018 02:16 PM, Michal Hocko wrote:
>> [CC hugetlb guys - http://lkml.kernel.org/r/20180705110716.3919-1-alex@ghiti.fr]
>>
>> On Thu 05-07-18 11:07:05, Alexandre Ghiti wrote:
>>> In order to reduce copy/paste of functions across architectures and then
>>> make riscv hugetlb port (and future ports) simpler and smaller, this
>>> patchset intends to factorize the numerous hugetlb primitives that are
>>> defined across all the architectures.
>>>
>>> Except for prepare_hugepage_range, this patchset moves the versions that
>>> are just pass-through to standard pte primitives into
>>> asm-generic/hugetlb.h by using the same #ifdef semantic that can be
>>> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.
>>>
>>> s390 architecture has not been tackled in this serie since it does not
>>> use asm-generic/hugetlb.h at all.
>>> powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).
>>>
>>> This patchset has been compiled on x86 only.
>>>
>>> Changelog:
>>>
>>> v4:
>>>    Fix powerpc build error due to misplacing of #include
>>>    <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as
>>>    pointed by Christophe Leroy.
>>>
>>> v1, v2, v3:
>>>    Same version, just problems with email provider and misuse of
>>>    --batch-size option of git send-email
>>>
>>> Alexandre Ghiti (11):
>>>    hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
>>>    hugetlb: Introduce generic version of hugetlb_free_pgd_range
>>>    hugetlb: Introduce generic version of set_huge_pte_at
>>>    hugetlb: Introduce generic version of huge_ptep_get_and_clear
>>>    hugetlb: Introduce generic version of huge_ptep_clear_flush
>>>    hugetlb: Introduce generic version of huge_pte_none
>>>    hugetlb: Introduce generic version of huge_pte_wrprotect
>>>    hugetlb: Introduce generic version of prepare_hugepage_range
>>>    hugetlb: Introduce generic version of huge_ptep_set_wrprotect
>>>    hugetlb: Introduce generic version of huge_ptep_set_access_flags
>>>    hugetlb: Introduce generic version of huge_ptep_get
>>>
>>>   arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
>>>   arch/arm/include/asm/hugetlb.h               | 33 +----------
>>>   arch/arm64/include/asm/hugetlb.h             | 39 +++---------
>>>   arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
>>>   arch/mips/include/asm/hugetlb.h              | 40 +++----------
>>>   arch/parisc/include/asm/hugetlb.h            | 33 +++--------
>>>   arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
>>>   arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
>>>   arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
>>>   arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
>>>   arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
>>>   arch/sh/include/asm/hugetlb.h                | 54 ++---------------
>>>   arch/sparc/include/asm/hugetlb.h             | 40 +++----------
>>>   arch/x86/include/asm/hugetlb.h               | 72 +----------------------
>>>   include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
>>>   15 files changed, 143 insertions(+), 384 deletions(-)
>>>
>>> -- 
>>> 2.16.2
> 

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From - Thu Nov 08 21:41:43 2018
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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.parisc
Subject: Re: convert parisc to the generic dma-noncoherent code
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On Sun, Jul 22, 2018 at 05:45:40PM +0200, Helge Deller wrote:
> Somehow I now can't reproduce the cache issues any longer. Both, your original
> patch and when using flush_kernel_vmap_range(), both work.
> 
> So, you can add a 
> Tested-by: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
> to your original patch series.

I can merge this through the dma-mapping tree, but given that
it touches only arch/parisc/ it might make more sense to merge it
through the parisc tree.

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From: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
Newsgroups: gmane.linux.kernel.iommu,gmane.linux.ports.parisc
Subject: Re: convert parisc to the generic dma-noncoherent code
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On 22.07.2018 21:57, Christoph Hellwig wrote:
> On Sun, Jul 22, 2018 at 05:45:40PM +0200, Helge Deller wrote:
>> Somehow I now can't reproduce the cache issues any longer. Both, your original
>> patch and when using flush_kernel_vmap_range(), both work.
>>
>> So, you can add a 
>> Tested-by: Helge Deller <deller-Mmb7MZpHnFY@public.gmane.org>
>> to your original patch series.
> 
> I can merge this through the dma-mapping tree, but given that
> it touches only arch/parisc/ it might make more sense to merge it
> through the parisc tree.

Sure, I will take it through the parisc tree.

Thanks!
Helge


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Subject: Re: [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture primitives
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To: Alex Ghiti <alex@ghiti.fr>, Michal Hocko <mhocko@kernel.org>
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Alex Ghiti <alex@ghiti.fr> writes:

> Does anyone have any suggestion about those patches ?

Cross compiling it for some non-x86 arches would be a good start :)

There are cross compilers available here:

  https://mirrors.edge.kernel.org/pub/tools/crosstool/


cheers

> On 07/09/2018 02:16 PM, Michal Hocko wrote:
>> [CC hugetlb guys - http://lkml.kernel.org/r/20180705110716.3919-1-alex@ghiti.fr]
>>
>> On Thu 05-07-18 11:07:05, Alexandre Ghiti wrote:
>>> In order to reduce copy/paste of functions across architectures and then
>>> make riscv hugetlb port (and future ports) simpler and smaller, this
>>> patchset intends to factorize the numerous hugetlb primitives that are
>>> defined across all the architectures.
>>>
>>> Except for prepare_hugepage_range, this patchset moves the versions that
>>> are just pass-through to standard pte primitives into
>>> asm-generic/hugetlb.h by using the same #ifdef semantic that can be
>>> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.
>>>
>>> s390 architecture has not been tackled in this serie since it does not
>>> use asm-generic/hugetlb.h at all.
>>> powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).
>>>
>>> This patchset has been compiled on x86 only.
>>>
>>> Changelog:
>>>
>>> v4:
>>>    Fix powerpc build error due to misplacing of #include
>>>    <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as
>>>    pointed by Christophe Leroy.
>>>
>>> v1, v2, v3:
>>>    Same version, just problems with email provider and misuse of
>>>    --batch-size option of git send-email
>>>
>>> Alexandre Ghiti (11):
>>>    hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
>>>    hugetlb: Introduce generic version of hugetlb_free_pgd_range
>>>    hugetlb: Introduce generic version of set_huge_pte_at
>>>    hugetlb: Introduce generic version of huge_ptep_get_and_clear
>>>    hugetlb: Introduce generic version of huge_ptep_clear_flush
>>>    hugetlb: Introduce generic version of huge_pte_none
>>>    hugetlb: Introduce generic version of huge_pte_wrprotect
>>>    hugetlb: Introduce generic version of prepare_hugepage_range
>>>    hugetlb: Introduce generic version of huge_ptep_set_wrprotect
>>>    hugetlb: Introduce generic version of huge_ptep_set_access_flags
>>>    hugetlb: Introduce generic version of huge_ptep_get
>>>
>>>   arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
>>>   arch/arm/include/asm/hugetlb.h               | 33 +----------
>>>   arch/arm64/include/asm/hugetlb.h             | 39 +++---------
>>>   arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
>>>   arch/mips/include/asm/hugetlb.h              | 40 +++----------
>>>   arch/parisc/include/asm/hugetlb.h            | 33 +++--------
>>>   arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
>>>   arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
>>>   arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
>>>   arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
>>>   arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
>>>   arch/sh/include/asm/hugetlb.h                | 54 ++---------------
>>>   arch/sparc/include/asm/hugetlb.h             | 40 +++----------
>>>   arch/x86/include/asm/hugetlb.h               | 72 +----------------------
>>>   include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
>>>   15 files changed, 143 insertions(+), 384 deletions(-)
>>>
>>> -- 
>>> 2.16.2


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On Thu 19-07-18 23:17:53, Baoquan He wrote:
> Kexec has been a formal feature in our distro, and customers owning
> those kind of very large machine can make use of this feature to speed
> up the reboot process. On uefi machine, the kexec_file loading will
> search place to put kernel under 4G from top to down. As we know, the
> 1st 4G space is DMA32 ZONE, dma, pci mmcfg, bios etc all try to consume
> it. It may have possibility to not be able to find a usable space for
> kernel/initrd. From the top down of the whole memory space, we don't
> have this worry. 

I do not have the full context here but let me note that you should be
careful when doing top-down reservation because you can easily get into
hotplugable memory and break the hotremove usecase. We even warn when
this is done. See memblock_find_in_range_node
-- 
Michal Hocko
SUSE Labs


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To: Michael Ellerman <mpe@ellerman.id.au>
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Ok will do and report when done.

Thanks for your feedback,

Alex

On 07/23/2018 02:00 PM, Michael Ellerman wrote:
> Alex Ghiti <alex@ghiti.fr> writes:
>
>> Does anyone have any suggestion about those patches ?
> Cross compiling it for some non-x86 arches would be a good start :)
>
> There are cross compilers available here:
>
>    https://mirrors.edge.kernel.org/pub/tools/crosstool/
>
>
> cheers
>
>> On 07/09/2018 02:16 PM, Michal Hocko wrote:
>>> [CC hugetlb guys - http://lkml.kernel.org/r/20180705110716.3919-1-alex@ghiti.fr]
>>>
>>> On Thu 05-07-18 11:07:05, Alexandre Ghiti wrote:
>>>> In order to reduce copy/paste of functions across architectures and then
>>>> make riscv hugetlb port (and future ports) simpler and smaller, this
>>>> patchset intends to factorize the numerous hugetlb primitives that are
>>>> defined across all the architectures.
>>>>
>>>> Except for prepare_hugepage_range, this patchset moves the versions that
>>>> are just pass-through to standard pte primitives into
>>>> asm-generic/hugetlb.h by using the same #ifdef semantic that can be
>>>> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.
>>>>
>>>> s390 architecture has not been tackled in this serie since it does not
>>>> use asm-generic/hugetlb.h at all.
>>>> powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).
>>>>
>>>> This patchset has been compiled on x86 only.
>>>>
>>>> Changelog:
>>>>
>>>> v4:
>>>>     Fix powerpc build error due to misplacing of #include
>>>>     <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as
>>>>     pointed by Christophe Leroy.
>>>>
>>>> v1, v2, v3:
>>>>     Same version, just problems with email provider and misuse of
>>>>     --batch-size option of git send-email
>>>>
>>>> Alexandre Ghiti (11):
>>>>     hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
>>>>     hugetlb: Introduce generic version of hugetlb_free_pgd_range
>>>>     hugetlb: Introduce generic version of set_huge_pte_at
>>>>     hugetlb: Introduce generic version of huge_ptep_get_and_clear
>>>>     hugetlb: Introduce generic version of huge_ptep_clear_flush
>>>>     hugetlb: Introduce generic version of huge_pte_none
>>>>     hugetlb: Introduce generic version of huge_pte_wrprotect
>>>>     hugetlb: Introduce generic version of prepare_hugepage_range
>>>>     hugetlb: Introduce generic version of huge_ptep_set_wrprotect
>>>>     hugetlb: Introduce generic version of huge_ptep_set_access_flags
>>>>     hugetlb: Introduce generic version of huge_ptep_get
>>>>
>>>>    arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
>>>>    arch/arm/include/asm/hugetlb.h               | 33 +----------
>>>>    arch/arm64/include/asm/hugetlb.h             | 39 +++---------
>>>>    arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
>>>>    arch/mips/include/asm/hugetlb.h              | 40 +++----------
>>>>    arch/parisc/include/asm/hugetlb.h            | 33 +++--------
>>>>    arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
>>>>    arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
>>>>    arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
>>>>    arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
>>>>    arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
>>>>    arch/sh/include/asm/hugetlb.h                | 54 ++---------------
>>>>    arch/sparc/include/asm/hugetlb.h             | 40 +++----------
>>>>    arch/x86/include/asm/hugetlb.h               | 72 +----------------------
>>>>    include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
>>>>    15 files changed, 143 insertions(+), 384 deletions(-)
>>>>
>>>> -- 
>>>> 2.16.2



From - Thu Nov 08 21:41:44 2018
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Subject: Re: [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture
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Hi Alexandre,

On Thu, Jul 05, 2018 at 11:07:05AM +0000, Alexandre Ghiti wrote:
> In order to reduce copy/paste of functions across architectures and then
> make riscv hugetlb port (and future ports) simpler and smaller, this
> patchset intends to factorize the numerous hugetlb primitives that are
> defined across all the architectures.
> 
> Except for prepare_hugepage_range, this patchset moves the versions that
> are just pass-through to standard pte primitives into
> asm-generic/hugetlb.h by using the same #ifdef semantic that can be
> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.
> 
> s390 architecture has not been tackled in this serie since it does not
> use asm-generic/hugetlb.h at all.
> powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).
> 
> This patchset has been compiled on x86 only. 

For MIPS these look good - I don't see any issues & they pass a build
test (using cavium_octeon_defconfig which enables huge pages), so:

    Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts

Thanks,
    Paul


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Subject: Re: [PATCH v7 4/4] kexec_file: Load kernel at top of system RAM if
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To: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
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Hi Andrew,

On 07/19/18 at 12:44pm, Andrew Morton wrote:
> On Thu, 19 Jul 2018 23:17:53 +0800 Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> > > As far as I can tell, the above is the whole reason for the patchset,
> > > yes?  To avoid confusing users.
> > 
> > 
> > In fact, it's not just trying to avoid confusing users. Kexec loading
> > and kexec_file loading are just do the same thing in essence. Just we
> > need do kernel image verification on uefi system, have to port kexec
> > loading code to kernel. 
> > 
> > Kexec has been a formal feature in our distro, and customers owning
> > those kind of very large machine can make use of this feature to speed
> > up the reboot process. On uefi machine, the kexec_file loading will
> > search place to put kernel under 4G from top to down. As we know, the
> > 1st 4G space is DMA32 ZONE, dma, pci mmcfg, bios etc all try to consume
> > it. It may have possibility to not be able to find a usable space for
> > kernel/initrd. From the top down of the whole memory space, we don't
> > have this worry. 
> > 
> > And at the first post, I just posted below with AKASHI's
> > walk_system_ram_res_rev() version. Later you suggested to use
> > list_head to link child sibling of resource, see what the code change
> > looks like.
> > http://lkml.kernel.org/r/20180322033722.9279-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
> > 
> > Then I posted v2
> > http://lkml.kernel.org/r/20180408024724.16812-1-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
> > Rob Herring mentioned that other components which has this tree struct
> > have planned to do the same thing, replacing the singly linked list with
> > list_head to link resource child sibling. Just quote Rob's words as
> > below. I think this could be another reason.
> > 
> > ~~~~~ From Rob
> > The DT struct device_node also has the same tree structure with
> > parent, child, sibling pointers and converting to list_head had been
> > on the todo list for a while. ACPI also has some tree walking
> > functions (drivers/acpi/acpica/pstree.c). Perhaps there should be a
> > common tree struct and helpers defined either on top of list_head or a
> > ~~~~~
> > new struct if that saves some size.
> 
> Please let's get all this into the changelogs?

Sorry for late reply because of some urgent customer hotplug issues.

I am rewriting all change logs, and cover letter. Then found I was wrong
about the 2nd reason. The current kexec_file_load calls
kexec_locate_mem_hole() to go through all system RAM region, if one
region is larger than the size of kernel or initrd, it will search a
position in that region from top to down. Since kexec will jump to 2nd
kernel and don't need to care the 1st kernel's data, we can always find
a usable space to load kexec kernel/initrd under 4G.

So the only reason for this patch is keeping consistent with kexec_load
and avoid confusion.

And since x86 5-level paging mode has been added, we have another issue
for top-down searching in the whole system RAM. That is we support
dynamic 4-level to 5-level changing. Namely a kernel compiled with
5-level support, we can add 'no5lvl' to force 4-level. Then jumping from
a 5-level kernel to 4-level kernel, e.g we load kernel at the top of
system RAM in 5-level paging mode which might be bigger than 64TB, then
try to jump to 4-level kernel with the upper limit of 64TB. For this
case, we need add limit for kexec kernel loading if in 5-level kernel.

All this mess makes me hesitate to choose a deligate method. Maybe I
should drop this patchset.

> 
> > > 
> > > Is that sufficient?  Can we instead simplify their lives by providing
> > > better documentation or informative printks or better Kconfig text,
> > > etc?
> > > 
> > > And who *are* the people who are performing this configuration?  Random
> > > system administrators?  Linux distro engineers?  If the latter then
> > > they presumably aren't easily confused!
> > 
> > Kexec was invented for kernel developer to speed up their kernel
> > rebooting. Now high end sever admin, kernel developer and QE are also
> > keen to use it to reboot large box for faster feature testing, bug
> > debugging. Kernel dev could know this well, about kernel loading
> > position, admin or QE might not be aware of it very well. 
> > 
> > > 
> > > In other words, I'm trying to understand how much benefit this patchset
> > > will provide to our users as a whole.
> > 
> > Understood. The list_head replacing patch truly involes too many code
> > changes, it's risky. I am willing to try any idea from reviewers, won't
> > persuit they have to be accepted finally. If don't have a try, we don't
> > know what it looks like, and what impact it may have. I am fine to take
> > AKASHI's simple version of walk_system_ram_res_rev() to lower risk, even
> > though it could be a little bit low efficient.
> 
> The larger patch produces a better result.  We can handle it ;)

For this issue, if we stop changing the kexec top down searching code,
I am not sure if we should post this replacing with list_head patches
separately.

Thanks
Baoquan

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On 07/23/18 at 04:34pm, Michal Hocko wrote:
> On Thu 19-07-18 23:17:53, Baoquan He wrote:
> > Kexec has been a formal feature in our distro, and customers owning
> > those kind of very large machine can make use of this feature to speed
> > up the reboot process. On uefi machine, the kexec_file loading will
> > search place to put kernel under 4G from top to down. As we know, the
> > 1st 4G space is DMA32 ZONE, dma, pci mmcfg, bios etc all try to consume
> > it. It may have possibility to not be able to find a usable space for
> > kernel/initrd. From the top down of the whole memory space, we don't
> > have this worry. 
> 
> I do not have the full context here but let me note that you should be
> careful when doing top-down reservation because you can easily get into
> hotplugable memory and break the hotremove usecase. We even warn when
> this is done. See memblock_find_in_range_node

Kexec read kernel/initrd file into buffer, just search usable positions
for them to do the later copying. You can see below struct kexec_segment, 
for the old kexec_load, kernel/initrd are read into user space buffer,
the @buf stores the user space buffer address, @mem stores the position
where kernel/initrd will be put. In kernel, it calls
kimage_load_normal_segment() to copy user space buffer to intermediate
pages which are allocated with flag GFP_KERNEL. These intermediate pages
are recorded as entries, later when user execute "kexec -e" to trigger
kexec jumping, it will do the final copying from the intermediate pages
to the real destination pages which @mem pointed. Because we can't touch
the existed data in 1st kernel when do kexec kernel loading. With my
understanding, GFP_KERNEL will make those intermediate pages be
allocated inside immovable area, it won't impact hotplugging. But the
@mem we searched in the whole system RAM might be lost along with
hotplug. Hence we need do kexec kernel again when hotplug event is
detected.

#define KEXEC_CONTROL_MEMORY_GFP (GFP_KERNEL | __GFP_NORETRY)


struct kexec_segment {
        /*
         * This pointer can point to user memory if kexec_load() system
         * call is used or will point to kernel memory if
         * kexec_file_load() system call is used.
         *
         * Use ->buf when expecting to deal with user memory and use ->kbuf
         * when expecting to deal with kernel memory.
         */
        union {
                void __user *buf;
                void *kbuf;
        };
        size_t bufsz;                                                                                                                             
        unsigned long mem;
        size_t memsz;
};

Thanks
Baoquan

From - Thu Nov 08 21:41:44 2018
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Subject: Re: [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture
 primitives
Date: Wed, 25 Jul 2018 09:38:57 +0200
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To: Paul Burton <paul.burton@mips.com>
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Hi Paul,

Thanks for having tested it, I remove mips from my list.

Thanks again,

Alex


On 07/25/2018 02:34 AM, Paul Burton wrote:
> Hi Alexandre,
>
> On Thu, Jul 05, 2018 at 11:07:05AM +0000, Alexandre Ghiti wrote:
>> In order to reduce copy/paste of functions across architectures and then
>> make riscv hugetlb port (and future ports) simpler and smaller, this
>> patchset intends to factorize the numerous hugetlb primitives that are
>> defined across all the architectures.
>>
>> Except for prepare_hugepage_range, this patchset moves the versions that
>> are just pass-through to standard pte primitives into
>> asm-generic/hugetlb.h by using the same #ifdef semantic that can be
>> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.
>>
>> s390 architecture has not been tackled in this serie since it does not
>> use asm-generic/hugetlb.h at all.
>> powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).
>>
>> This patchset has been compiled on x86 only.
> For MIPS these look good - I don't see any issues & they pass a build
> test (using cavium_octeon_defconfig which enables huge pages), so:
>
>      Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
>
> Thanks,
>      Paul



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Subject: Re: [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture
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Hi everyone,

This is the result of the build for all arches tackled in this series 
rebased on 4.18-rc6:

arm:
  versatile_defconfig: without huge page OK
  keystone_defconfig: with huge page OK
arm64:
  defconfig: with huge page OK
ia64:
  generic_defconfig: with huge page OK
mips:
  Paul Burton tested cavium octeon with huge page OK
parisc:
  generic-64bit_defconfig: with huge page does not link
  generic-64bit_defconfig: without huge page does not link
  BUT not because of this series, any feedback welcome.
powerpc:
  ppc64_defconfig: without huge page OK
  ppc64_defconfig: with huge page OK
sh:
  dreamcast_defconfig: with huge page OK
sparc:
  sparc32_defconfig: without huge page OK
sparc64:
  sparc64_defconfig: with huge page OK
x86:
  with huge page OK

Alex

On 07/23/2018 02:00 PM, Michael Ellerman wrote:
> Alex Ghiti <alex@ghiti.fr> writes:
>
>> Does anyone have any suggestion about those patches ?
> Cross compiling it for some non-x86 arches would be a good start :)
>
> There are cross compilers available here:
>
>    https://mirrors.edge.kernel.org/pub/tools/crosstool/
>
>
> cheers
>
>> On 07/09/2018 02:16 PM, Michal Hocko wrote:
>>> [CC hugetlb guys - http://lkml.kernel.org/r/20180705110716.3919-1-alex@ghiti.fr]
>>>
>>> On Thu 05-07-18 11:07:05, Alexandre Ghiti wrote:
>>>> In order to reduce copy/paste of functions across architectures and then
>>>> make riscv hugetlb port (and future ports) simpler and smaller, this
>>>> patchset intends to factorize the numerous hugetlb primitives that are
>>>> defined across all the architectures.
>>>>
>>>> Except for prepare_hugepage_range, this patchset moves the versions that
>>>> are just pass-through to standard pte primitives into
>>>> asm-generic/hugetlb.h by using the same #ifdef semantic that can be
>>>> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.
>>>>
>>>> s390 architecture has not been tackled in this serie since it does not
>>>> use asm-generic/hugetlb.h at all.
>>>> powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).
>>>>
>>>> This patchset has been compiled on x86 only.
>>>>
>>>> Changelog:
>>>>
>>>> v4:
>>>>     Fix powerpc build error due to misplacing of #include
>>>>     <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as
>>>>     pointed by Christophe Leroy.
>>>>
>>>> v1, v2, v3:
>>>>     Same version, just problems with email provider and misuse of
>>>>     --batch-size option of git send-email
>>>>
>>>> Alexandre Ghiti (11):
>>>>     hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
>>>>     hugetlb: Introduce generic version of hugetlb_free_pgd_range
>>>>     hugetlb: Introduce generic version of set_huge_pte_at
>>>>     hugetlb: Introduce generic version of huge_ptep_get_and_clear
>>>>     hugetlb: Introduce generic version of huge_ptep_clear_flush
>>>>     hugetlb: Introduce generic version of huge_pte_none
>>>>     hugetlb: Introduce generic version of huge_pte_wrprotect
>>>>     hugetlb: Introduce generic version of prepare_hugepage_range
>>>>     hugetlb: Introduce generic version of huge_ptep_set_wrprotect
>>>>     hugetlb: Introduce generic version of huge_ptep_set_access_flags
>>>>     hugetlb: Introduce generic version of huge_ptep_get
>>>>
>>>>    arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
>>>>    arch/arm/include/asm/hugetlb.h               | 33 +----------
>>>>    arch/arm64/include/asm/hugetlb.h             | 39 +++---------
>>>>    arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
>>>>    arch/mips/include/asm/hugetlb.h              | 40 +++----------
>>>>    arch/parisc/include/asm/hugetlb.h            | 33 +++--------
>>>>    arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
>>>>    arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
>>>>    arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
>>>>    arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
>>>>    arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
>>>>    arch/sh/include/asm/hugetlb.h                | 54 ++---------------
>>>>    arch/sparc/include/asm/hugetlb.h             | 40 +++----------
>>>>    arch/x86/include/asm/hugetlb.h               | 72 +----------------------
>>>>    include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
>>>>    15 files changed, 143 insertions(+), 384 deletions(-)
>>>>
>>>> -- 
>>>> 2.16.2



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To: Mike Kravetz <mike.kravetz@oracle.com>, Alex Ghiti <alex@ghiti.fr>,
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Mike Kravetz <mike.kravetz@oracle.com> writes:

> On 07/20/2018 11:37 AM, Alex Ghiti wrote:
>> Does anyone have any suggestion about those patches ?
>
> I only took a quick look.  From the hugetlb perspective, I like the
> idea of moving routines to a common file.  If any of the arch owners
> (or anyone else) agree, I can do a review of the series.

The conversions look pretty good to me. If you want to give it a review
then from my point of view it could go in -mm to shake out any bugs.

cheers


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On Wed 25-07-18 14:48:13, Baoquan He wrote:
> On 07/23/18 at 04:34pm, Michal Hocko wrote:
> > On Thu 19-07-18 23:17:53, Baoquan He wrote:
> > > Kexec has been a formal feature in our distro, and customers owning
> > > those kind of very large machine can make use of this feature to speed
> > > up the reboot process. On uefi machine, the kexec_file loading will
> > > search place to put kernel under 4G from top to down. As we know, the
> > > 1st 4G space is DMA32 ZONE, dma, pci mmcfg, bios etc all try to consume
> > > it. It may have possibility to not be able to find a usable space for
> > > kernel/initrd. From the top down of the whole memory space, we don't
> > > have this worry. 
> > 
> > I do not have the full context here but let me note that you should be
> > careful when doing top-down reservation because you can easily get into
> > hotplugable memory and break the hotremove usecase. We even warn when
> > this is done. See memblock_find_in_range_node
> 
> Kexec read kernel/initrd file into buffer, just search usable positions
> for them to do the later copying. You can see below struct kexec_segment, 
> for the old kexec_load, kernel/initrd are read into user space buffer,
> the @buf stores the user space buffer address, @mem stores the position
> where kernel/initrd will be put. In kernel, it calls
> kimage_load_normal_segment() to copy user space buffer to intermediate
> pages which are allocated with flag GFP_KERNEL. These intermediate pages
> are recorded as entries, later when user execute "kexec -e" to trigger
> kexec jumping, it will do the final copying from the intermediate pages
> to the real destination pages which @mem pointed. Because we can't touch
> the existed data in 1st kernel when do kexec kernel loading. With my
> understanding, GFP_KERNEL will make those intermediate pages be
> allocated inside immovable area, it won't impact hotplugging. But the
> @mem we searched in the whole system RAM might be lost along with
> hotplug. Hence we need do kexec kernel again when hotplug event is
> detected.

I am not sure I am following. If @mem is placed at movable node then the
memory hotremove simply won't work, because we are seeing reserved pages
and do not know what to do about them. They are not migrateable.
Allocating intermediate pages from other nodes doesn't really help.

The memblock code warns exactly for that reason.
-- 
Michal Hocko
SUSE Labs

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* Alex Ghiti <alex@ghiti.fr>:
> This is the result of the build for all arches tackled in this series
> rebased on 4.18-rc6:
> ...
> parisc:
> =A0=A0=A0=A0=A0=A0=A0 generic-64bit_defconfig: with huge page does not li=
nk
> =A0=A0=A0=A0=A0=A0=A0 generic-64bit_defconfig: without huge page does not=
 link
> =A0=A0=A0=A0=A0=A0=A0 BUT not because of this series, any feedback welcom=
e.
Strange, but I will check that later....

Anyway, I applied your v4-patch to my parisc64 tree, built the kernel,
started it and ran some hugetlb LTP testcases sucessfully.
So, please add:

Tested-by: Helge Deller <deller@gmx.de> # parisc

Helge

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On 07/26/18 at 02:59pm, Michal Hocko wrote:
> On Wed 25-07-18 14:48:13, Baoquan He wrote:
> > On 07/23/18 at 04:34pm, Michal Hocko wrote:
> > > On Thu 19-07-18 23:17:53, Baoquan He wrote:
> > > > Kexec has been a formal feature in our distro, and customers owning
> > > > those kind of very large machine can make use of this feature to speed
> > > > up the reboot process. On uefi machine, the kexec_file loading will
> > > > search place to put kernel under 4G from top to down. As we know, the
> > > > 1st 4G space is DMA32 ZONE, dma, pci mmcfg, bios etc all try to consume
> > > > it. It may have possibility to not be able to find a usable space for
> > > > kernel/initrd. From the top down of the whole memory space, we don't
> > > > have this worry. 
> > > 
> > > I do not have the full context here but let me note that you should be
> > > careful when doing top-down reservation because you can easily get into
> > > hotplugable memory and break the hotremove usecase. We even warn when
> > > this is done. See memblock_find_in_range_node
> > 
> > Kexec read kernel/initrd file into buffer, just search usable positions
> > for them to do the later copying. You can see below struct kexec_segment, 
> > for the old kexec_load, kernel/initrd are read into user space buffer,
> > the @buf stores the user space buffer address, @mem stores the position
> > where kernel/initrd will be put. In kernel, it calls
> > kimage_load_normal_segment() to copy user space buffer to intermediate
> > pages which are allocated with flag GFP_KERNEL. These intermediate pages
> > are recorded as entries, later when user execute "kexec -e" to trigger
> > kexec jumping, it will do the final copying from the intermediate pages
> > to the real destination pages which @mem pointed. Because we can't touch
> > the existed data in 1st kernel when do kexec kernel loading. With my
> > understanding, GFP_KERNEL will make those intermediate pages be
> > allocated inside immovable area, it won't impact hotplugging. But the
> > @mem we searched in the whole system RAM might be lost along with
> > hotplug. Hence we need do kexec kernel again when hotplug event is
> > detected.
> 
> I am not sure I am following. If @mem is placed at movable node then the
> memory hotremove simply won't work, because we are seeing reserved pages
> and do not know what to do about them. They are not migrateable.
> Allocating intermediate pages from other nodes doesn't really help.

OK, I forgot the 2nd kernel which kexec jump into. It won't impact hotremove
in 1st kernel, it does impact the kernel which kexec jump into if kernel
is at top of system RAM and the top RAM is in movable node.

> 
> The memblock code warns exactly for that reason.
> -- 
> Michal Hocko
> SUSE Labs

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Archived-At: <http://permalink.gmane.org/gmane.linux.hardware.nvdimm/11178>

On Thu 26-07-18 21:09:04, Baoquan He wrote:
> On 07/26/18 at 02:59pm, Michal Hocko wrote:
> > On Wed 25-07-18 14:48:13, Baoquan He wrote:
> > > On 07/23/18 at 04:34pm, Michal Hocko wrote:
> > > > On Thu 19-07-18 23:17:53, Baoquan He wrote:
> > > > > Kexec has been a formal feature in our distro, and customers owning
> > > > > those kind of very large machine can make use of this feature to speed
> > > > > up the reboot process. On uefi machine, the kexec_file loading will
> > > > > search place to put kernel under 4G from top to down. As we know, the
> > > > > 1st 4G space is DMA32 ZONE, dma, pci mmcfg, bios etc all try to consume
> > > > > it. It may have possibility to not be able to find a usable space for
> > > > > kernel/initrd. From the top down of the whole memory space, we don't
> > > > > have this worry. 
> > > > 
> > > > I do not have the full context here but let me note that you should be
> > > > careful when doing top-down reservation because you can easily get into
> > > > hotplugable memory and break the hotremove usecase. We even warn when
> > > > this is done. See memblock_find_in_range_node
> > > 
> > > Kexec read kernel/initrd file into buffer, just search usable positions
> > > for them to do the later copying. You can see below struct kexec_segment, 
> > > for the old kexec_load, kernel/initrd are read into user space buffer,
> > > the @buf stores the user space buffer address, @mem stores the position
> > > where kernel/initrd will be put. In kernel, it calls
> > > kimage_load_normal_segment() to copy user space buffer to intermediate
> > > pages which are allocated with flag GFP_KERNEL. These intermediate pages
> > > are recorded as entries, later when user execute "kexec -e" to trigger
> > > kexec jumping, it will do the final copying from the intermediate pages
> > > to the real destination pages which @mem pointed. Because we can't touch
> > > the existed data in 1st kernel when do kexec kernel loading. With my
> > > understanding, GFP_KERNEL will make those intermediate pages be
> > > allocated inside immovable area, it won't impact hotplugging. But the
> > > @mem we searched in the whole system RAM might be lost along with
> > > hotplug. Hence we need do kexec kernel again when hotplug event is
> > > detected.
> > 
> > I am not sure I am following. If @mem is placed at movable node then the
> > memory hotremove simply won't work, because we are seeing reserved pages
> > and do not know what to do about them. They are not migrateable.
> > Allocating intermediate pages from other nodes doesn't really help.
> 
> OK, I forgot the 2nd kernel which kexec jump into. It won't impact hotremove
> in 1st kernel, it does impact the kernel which kexec jump into if kernel
> is at top of system RAM and the top RAM is in movable node.

It will affect the 1st kernel (which does the memblock allocation
top-down) as well. For reasons mentioned above.
-- 
Michal Hocko
SUSE Labs

From - Thu Nov 08 21:41:45 2018
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Subject: Re: [PATCH v7 4/4] kexec_file: Load kernel at top of system RAM if
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To: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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On Thu 26-07-18 15:12:42, Michal Hocko wrote:
> On Thu 26-07-18 21:09:04, Baoquan He wrote:
> > On 07/26/18 at 02:59pm, Michal Hocko wrote:
> > > On Wed 25-07-18 14:48:13, Baoquan He wrote:
> > > > On 07/23/18 at 04:34pm, Michal Hocko wrote:
> > > > > On Thu 19-07-18 23:17:53, Baoquan He wrote:
> > > > > > Kexec has been a formal feature in our distro, and customers owning
> > > > > > those kind of very large machine can make use of this feature to speed
> > > > > > up the reboot process. On uefi machine, the kexec_file loading will
> > > > > > search place to put kernel under 4G from top to down. As we know, the
> > > > > > 1st 4G space is DMA32 ZONE, dma, pci mmcfg, bios etc all try to consume
> > > > > > it. It may have possibility to not be able to find a usable space for
> > > > > > kernel/initrd. From the top down of the whole memory space, we don't
> > > > > > have this worry. 
> > > > > 
> > > > > I do not have the full context here but let me note that you should be
> > > > > careful when doing top-down reservation because you can easily get into
> > > > > hotplugable memory and break the hotremove usecase. We even warn when
> > > > > this is done. See memblock_find_in_range_node
> > > > 
> > > > Kexec read kernel/initrd file into buffer, just search usable positions
> > > > for them to do the later copying. You can see below struct kexec_segment, 
> > > > for the old kexec_load, kernel/initrd are read into user space buffer,
> > > > the @buf stores the user space buffer address, @mem stores the position
> > > > where kernel/initrd will be put. In kernel, it calls
> > > > kimage_load_normal_segment() to copy user space buffer to intermediate
> > > > pages which are allocated with flag GFP_KERNEL. These intermediate pages
> > > > are recorded as entries, later when user execute "kexec -e" to trigger
> > > > kexec jumping, it will do the final copying from the intermediate pages
> > > > to the real destination pages which @mem pointed. Because we can't touch
> > > > the existed data in 1st kernel when do kexec kernel loading. With my
> > > > understanding, GFP_KERNEL will make those intermediate pages be
> > > > allocated inside immovable area, it won't impact hotplugging. But the
> > > > @mem we searched in the whole system RAM might be lost along with
> > > > hotplug. Hence we need do kexec kernel again when hotplug event is
> > > > detected.
> > > 
> > > I am not sure I am following. If @mem is placed at movable node then the
> > > memory hotremove simply won't work, because we are seeing reserved pages
> > > and do not know what to do about them. They are not migrateable.
> > > Allocating intermediate pages from other nodes doesn't really help.
> > 
> > OK, I forgot the 2nd kernel which kexec jump into. It won't impact hotremove
> > in 1st kernel, it does impact the kernel which kexec jump into if kernel
> > is at top of system RAM and the top RAM is in movable node.
> 
> It will affect the 1st kernel (which does the memblock allocation
> top-down) as well. For reasons mentioned above.

And btw. in the ideal world, we would restrict the memblock allocation
top-down from the non-movable nodes. But I do not think we have that
information ready at the time when the reservation is done.
-- 
Michal Hocko
SUSE Labs

From - Thu Nov 08 21:41:45 2018
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Subject: Re: [PATCH v7 4/4] kexec_file: Load kernel at top of system RAM if
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On 07/26/18 at 03:14pm, Michal Hocko wrote:
> On Thu 26-07-18 15:12:42, Michal Hocko wrote:
> > On Thu 26-07-18 21:09:04, Baoquan He wrote:
> > > On 07/26/18 at 02:59pm, Michal Hocko wrote:
> > > > On Wed 25-07-18 14:48:13, Baoquan He wrote:
> > > > > On 07/23/18 at 04:34pm, Michal Hocko wrote:
> > > > > > On Thu 19-07-18 23:17:53, Baoquan He wrote:
> > > > > > > Kexec has been a formal feature in our distro, and customers owning
> > > > > > > those kind of very large machine can make use of this feature to speed
> > > > > > > up the reboot process. On uefi machine, the kexec_file loading will
> > > > > > > search place to put kernel under 4G from top to down. As we know, the
> > > > > > > 1st 4G space is DMA32 ZONE, dma, pci mmcfg, bios etc all try to consume
> > > > > > > it. It may have possibility to not be able to find a usable space for
> > > > > > > kernel/initrd. From the top down of the whole memory space, we don't
> > > > > > > have this worry. 
> > > > > > 
> > > > > > I do not have the full context here but let me note that you should be
> > > > > > careful when doing top-down reservation because you can easily get into
> > > > > > hotplugable memory and break the hotremove usecase. We even warn when
> > > > > > this is done. See memblock_find_in_range_node
> > > > > 
> > > > > Kexec read kernel/initrd file into buffer, just search usable positions
> > > > > for them to do the later copying. You can see below struct kexec_segment, 
> > > > > for the old kexec_load, kernel/initrd are read into user space buffer,
> > > > > the @buf stores the user space buffer address, @mem stores the position
> > > > > where kernel/initrd will be put. In kernel, it calls
> > > > > kimage_load_normal_segment() to copy user space buffer to intermediate
> > > > > pages which are allocated with flag GFP_KERNEL. These intermediate pages
> > > > > are recorded as entries, later when user execute "kexec -e" to trigger
> > > > > kexec jumping, it will do the final copying from the intermediate pages
> > > > > to the real destination pages which @mem pointed. Because we can't touch
> > > > > the existed data in 1st kernel when do kexec kernel loading. With my
> > > > > understanding, GFP_KERNEL will make those intermediate pages be
> > > > > allocated inside immovable area, it won't impact hotplugging. But the
> > > > > @mem we searched in the whole system RAM might be lost along with
> > > > > hotplug. Hence we need do kexec kernel again when hotplug event is
> > > > > detected.
> > > > 
> > > > I am not sure I am following. If @mem is placed at movable node then the
> > > > memory hotremove simply won't work, because we are seeing reserved pages
> > > > and do not know what to do about them. They are not migrateable.
> > > > Allocating intermediate pages from other nodes doesn't really help.
> > > 
> > > OK, I forgot the 2nd kernel which kexec jump into. It won't impact hotremove
> > > in 1st kernel, it does impact the kernel which kexec jump into if kernel
> > > is at top of system RAM and the top RAM is in movable node.
> > 
> > It will affect the 1st kernel (which does the memblock allocation
> > top-down) as well. For reasons mentioned above.
> 
> And btw. in the ideal world, we would restrict the memblock allocation
> top-down from the non-movable nodes. But I do not think we have that
> information ready at the time when the reservation is done.

Oh, you could mix kexec loading up with kdump kernel loading. For kdump
kernel, we need reserve memory region during bootup with memblock
allocator. For kexec loading, we just operate after system up, and do
not need to reserve any memmory region. About memory used to load them,
it's quite different way.

Thanks
Baoquan

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Subject: Re: [PATCH v7 4/4] kexec_file: Load kernel at top of system RAM if
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To: Baoquan He <bhe@redhat.com>
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On Thu 26-07-18 21:37:05, Baoquan He wrote:
> On 07/26/18 at 03:14pm, Michal Hocko wrote:
> > On Thu 26-07-18 15:12:42, Michal Hocko wrote:
> > > On Thu 26-07-18 21:09:04, Baoquan He wrote:
> > > > On 07/26/18 at 02:59pm, Michal Hocko wrote:
> > > > > On Wed 25-07-18 14:48:13, Baoquan He wrote:
> > > > > > On 07/23/18 at 04:34pm, Michal Hocko wrote:
> > > > > > > On Thu 19-07-18 23:17:53, Baoquan He wrote:
> > > > > > > > Kexec has been a formal feature in our distro, and customers owning
> > > > > > > > those kind of very large machine can make use of this feature to speed
> > > > > > > > up the reboot process. On uefi machine, the kexec_file loading will
> > > > > > > > search place to put kernel under 4G from top to down. As we know, the
> > > > > > > > 1st 4G space is DMA32 ZONE, dma, pci mmcfg, bios etc all try to consume
> > > > > > > > it. It may have possibility to not be able to find a usable space for
> > > > > > > > kernel/initrd. From the top down of the whole memory space, we don't
> > > > > > > > have this worry. 
> > > > > > > 
> > > > > > > I do not have the full context here but let me note that you should be
> > > > > > > careful when doing top-down reservation because you can easily get into
> > > > > > > hotplugable memory and break the hotremove usecase. We even warn when
> > > > > > > this is done. See memblock_find_in_range_node
> > > > > > 
> > > > > > Kexec read kernel/initrd file into buffer, just search usable positions
> > > > > > for them to do the later copying. You can see below struct kexec_segment, 
> > > > > > for the old kexec_load, kernel/initrd are read into user space buffer,
> > > > > > the @buf stores the user space buffer address, @mem stores the position
> > > > > > where kernel/initrd will be put. In kernel, it calls
> > > > > > kimage_load_normal_segment() to copy user space buffer to intermediate
> > > > > > pages which are allocated with flag GFP_KERNEL. These intermediate pages
> > > > > > are recorded as entries, later when user execute "kexec -e" to trigger
> > > > > > kexec jumping, it will do the final copying from the intermediate pages
> > > > > > to the real destination pages which @mem pointed. Because we can't touch
> > > > > > the existed data in 1st kernel when do kexec kernel loading. With my
> > > > > > understanding, GFP_KERNEL will make those intermediate pages be
> > > > > > allocated inside immovable area, it won't impact hotplugging. But the
> > > > > > @mem we searched in the whole system RAM might be lost along with
> > > > > > hotplug. Hence we need do kexec kernel again when hotplug event is
> > > > > > detected.
> > > > > 
> > > > > I am not sure I am following. If @mem is placed at movable node then the
> > > > > memory hotremove simply won't work, because we are seeing reserved pages
> > > > > and do not know what to do about them. They are not migrateable.
> > > > > Allocating intermediate pages from other nodes doesn't really help.
> > > > 
> > > > OK, I forgot the 2nd kernel which kexec jump into. It won't impact hotremove
> > > > in 1st kernel, it does impact the kernel which kexec jump into if kernel
> > > > is at top of system RAM and the top RAM is in movable node.
> > > 
> > > It will affect the 1st kernel (which does the memblock allocation
> > > top-down) as well. For reasons mentioned above.
> > 
> > And btw. in the ideal world, we would restrict the memblock allocation
> > top-down from the non-movable nodes. But I do not think we have that
> > information ready at the time when the reservation is done.
> 
> Oh, you could mix kexec loading up with kdump kernel loading. For kdump
> kernel, we need reserve memory region during bootup with memblock
> allocator. For kexec loading, we just operate after system up, and do
> not need to reserve any memmory region. About memory used to load them,
> it's quite different way.

I didn't know about that. I thought both use the same underlying
reservation mechanism. My bad and sorry for the noise.
-- 
Michal Hocko
SUSE Labs

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On 07/26/18 at 04:01pm, Michal Hocko wrote:
> On Thu 26-07-18 21:37:05, Baoquan He wrote:
> > On 07/26/18 at 03:14pm, Michal Hocko wrote:
> > > On Thu 26-07-18 15:12:42, Michal Hocko wrote:
> > > > On Thu 26-07-18 21:09:04, Baoquan He wrote:
> > > > > On 07/26/18 at 02:59pm, Michal Hocko wrote:
> > > > > > On Wed 25-07-18 14:48:13, Baoquan He wrote:
> > > > > > > On 07/23/18 at 04:34pm, Michal Hocko wrote:
> > > > > > > > On Thu 19-07-18 23:17:53, Baoquan He wrote:
> > > > > > > > > Kexec has been a formal feature in our distro, and customers owning
> > > > > > > > > those kind of very large machine can make use of this feature to speed
> > > > > > > > > up the reboot process. On uefi machine, the kexec_file loading will
> > > > > > > > > search place to put kernel under 4G from top to down. As we know, the
> > > > > > > > > 1st 4G space is DMA32 ZONE, dma, pci mmcfg, bios etc all try to consume
> > > > > > > > > it. It may have possibility to not be able to find a usable space for
> > > > > > > > > kernel/initrd. From the top down of the whole memory space, we don't
> > > > > > > > > have this worry. 
> > > > > > > > 
> > > > > > > > I do not have the full context here but let me note that you should be
> > > > > > > > careful when doing top-down reservation because you can easily get into
> > > > > > > > hotplugable memory and break the hotremove usecase. We even warn when
> > > > > > > > this is done. See memblock_find_in_range_node
> > > > > > > 
> > > > > > > Kexec read kernel/initrd file into buffer, just search usable positions
> > > > > > > for them to do the later copying. You can see below struct kexec_segment, 
> > > > > > > for the old kexec_load, kernel/initrd are read into user space buffer,
> > > > > > > the @buf stores the user space buffer address, @mem stores the position
> > > > > > > where kernel/initrd will be put. In kernel, it calls
> > > > > > > kimage_load_normal_segment() to copy user space buffer to intermediate
> > > > > > > pages which are allocated with flag GFP_KERNEL. These intermediate pages
> > > > > > > are recorded as entries, later when user execute "kexec -e" to trigger
> > > > > > > kexec jumping, it will do the final copying from the intermediate pages
> > > > > > > to the real destination pages which @mem pointed. Because we can't touch
> > > > > > > the existed data in 1st kernel when do kexec kernel loading. With my
> > > > > > > understanding, GFP_KERNEL will make those intermediate pages be
> > > > > > > allocated inside immovable area, it won't impact hotplugging. But the
> > > > > > > @mem we searched in the whole system RAM might be lost along with
> > > > > > > hotplug. Hence we need do kexec kernel again when hotplug event is
> > > > > > > detected.
> > > > > > 
> > > > > > I am not sure I am following. If @mem is placed at movable node then the
> > > > > > memory hotremove simply won't work, because we are seeing reserved pages
> > > > > > and do not know what to do about them. They are not migrateable.
> > > > > > Allocating intermediate pages from other nodes doesn't really help.
> > > > > 
> > > > > OK, I forgot the 2nd kernel which kexec jump into. It won't impact hotremove
> > > > > in 1st kernel, it does impact the kernel which kexec jump into if kernel
> > > > > is at top of system RAM and the top RAM is in movable node.
> > > > 
> > > > It will affect the 1st kernel (which does the memblock allocation
> > > > top-down) as well. For reasons mentioned above.
> > > 
> > > And btw. in the ideal world, we would restrict the memblock allocation
> > > top-down from the non-movable nodes. But I do not think we have that
> > > information ready at the time when the reservation is done.
> > 
> > Oh, you could mix kexec loading up with kdump kernel loading. For kdump
> > kernel, we need reserve memory region during bootup with memblock
> > allocator. For kexec loading, we just operate after system up, and do
> > not need to reserve any memmory region. About memory used to load them,
> > it's quite different way.
> 
> I didn't know about that. I thought both use the same underlying
> reservation mechanism. My bad and sorry for the noise.

Not at all. It's truly confusing. I often need take time to recall those
details. 


From - Thu Nov 08 21:41:45 2018
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From: LEROY Christophe <christophe.leroy@c-s.fr>
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Subject: Re: [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture
 primitives
Date: Thu, 26 Jul 2018 17:13:55 +0200
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Approved: news@gmane.org
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To: Alex Ghiti <alex@ghiti.fr>
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Alex Ghiti <alex@ghiti.fr> a écrit :

> Hi everyone,
>
> This is the result of the build for all arches tackled in this  
> series rebased on 4.18-rc6:
>
> arm:
>         versatile_defconfig: without huge page OK
>         keystone_defconfig: with huge page OK
> arm64:
>         defconfig: with huge page OK
> ia64:
>         generic_defconfig: with huge page OK
> mips:
>         Paul Burton tested cavium octeon with huge page OK
> parisc:
>         generic-64bit_defconfig: with huge page does not link
>         generic-64bit_defconfig: without huge page does not link
>         BUT not because of this series, any feedback welcome.
> powerpc:
>         ppc64_defconfig: without huge page OK
>         ppc64_defconfig: with huge page OK

Can you also test ppc32 both with and without hugepage (mpc885_ads_defconfig)

Thanks
Christophe

> sh:
>         dreamcast_defconfig: with huge page OK
> sparc:
>         sparc32_defconfig: without huge page OK
> sparc64:
>         sparc64_defconfig: with huge page OK
> x86:
>         with huge page OK
>
> Alex
>
> On 07/23/2018 02:00 PM, Michael Ellerman wrote:
>> Alex Ghiti <alex@ghiti.fr> writes:
>>
>>> Does anyone have any suggestion about those patches ?
>> Cross compiling it for some non-x86 arches would be a good start :)
>>
>> There are cross compilers available here:
>>
>>   https://mirrors.edge.kernel.org/pub/tools/crosstool/
>>
>>
>> cheers
>>
>>> On 07/09/2018 02:16 PM, Michal Hocko wrote:
>>>> [CC hugetlb guys -  
>>>> http://lkml.kernel.org/r/20180705110716.3919-1-alex@ghiti.fr]
>>>>
>>>> On Thu 05-07-18 11:07:05, Alexandre Ghiti wrote:
>>>>> In order to reduce copy/paste of functions across architectures and then
>>>>> make riscv hugetlb port (and future ports) simpler and smaller, this
>>>>> patchset intends to factorize the numerous hugetlb primitives that are
>>>>> defined across all the architectures.
>>>>>
>>>>> Except for prepare_hugepage_range, this patchset moves the versions that
>>>>> are just pass-through to standard pte primitives into
>>>>> asm-generic/hugetlb.h by using the same #ifdef semantic that can be
>>>>> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.
>>>>>
>>>>> s390 architecture has not been tackled in this serie since it does not
>>>>> use asm-generic/hugetlb.h at all.
>>>>> powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).
>>>>>
>>>>> This patchset has been compiled on x86 only.
>>>>>
>>>>> Changelog:
>>>>>
>>>>> v4:
>>>>>    Fix powerpc build error due to misplacing of #include
>>>>>    <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as
>>>>>    pointed by Christophe Leroy.
>>>>>
>>>>> v1, v2, v3:
>>>>>    Same version, just problems with email provider and misuse of
>>>>>    --batch-size option of git send-email
>>>>>
>>>>> Alexandre Ghiti (11):
>>>>>    hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
>>>>>    hugetlb: Introduce generic version of hugetlb_free_pgd_range
>>>>>    hugetlb: Introduce generic version of set_huge_pte_at
>>>>>    hugetlb: Introduce generic version of huge_ptep_get_and_clear
>>>>>    hugetlb: Introduce generic version of huge_ptep_clear_flush
>>>>>    hugetlb: Introduce generic version of huge_pte_none
>>>>>    hugetlb: Introduce generic version of huge_pte_wrprotect
>>>>>    hugetlb: Introduce generic version of prepare_hugepage_range
>>>>>    hugetlb: Introduce generic version of huge_ptep_set_wrprotect
>>>>>    hugetlb: Introduce generic version of huge_ptep_set_access_flags
>>>>>    hugetlb: Introduce generic version of huge_ptep_get
>>>>>
>>>>>   arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
>>>>>   arch/arm/include/asm/hugetlb.h               | 33 +----------
>>>>>   arch/arm64/include/asm/hugetlb.h             | 39 +++---------
>>>>>   arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
>>>>>   arch/mips/include/asm/hugetlb.h              | 40 +++----------
>>>>>   arch/parisc/include/asm/hugetlb.h            | 33 +++--------
>>>>>   arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
>>>>>   arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
>>>>>   arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
>>>>>   arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
>>>>>   arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
>>>>>   arch/sh/include/asm/hugetlb.h                | 54 ++---------------
>>>>>   arch/sparc/include/asm/hugetlb.h             | 40 +++----------
>>>>>   arch/x86/include/asm/hugetlb.h               | 72  
>>>>> +----------------------
>>>>>   include/asm-generic/hugetlb.h                | 88  
>>>>> +++++++++++++++++++++++++++-
>>>>>   15 files changed, 143 insertions(+), 384 deletions(-)
>>>>>
>>>>> -- 
>>>>> 2.16.2




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Subject: Re: [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture
 primitives
Date: Thu, 26 Jul 2018 16:46:20 +0000
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Cc: Mike Kravetz <mike.kravetz@oracle.com>, davem@davemloft.net,
        linuxppc-dev@lists.ozlabs.org,
        Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
        paul.burton@mips.com, ralf@linux-mips.org,
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        jhogan@kernel.org, catalin.marinas@arm.com, mingo@redhat.com,
        linux@armlinux.org.uk, x86@kernel.org, deller@gmx.de,
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        Michal Hocko <mhocko@kernel.org>,
        Michael Ell
To: LEROY Christophe <christophe.leroy@c-s.fr>
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Hi Christophe,

Sorry, I should have done it already: with and without huge page 
activated, the build for mpc885_ads_defconfig is OK.

Thanks,

Alex

On 07/26/2018 03:13 PM, LEROY Christophe wrote:
> Alex Ghiti <alex@ghiti.fr> a écrit :
>
>> Hi everyone,
>>
>> This is the result of the build for all arches tackled in this series 
>> rebased on 4.18-rc6:
>>
>> arm:
>>         versatile_defconfig: without huge page OK
>>         keystone_defconfig: with huge page OK
>> arm64:
>>         defconfig: with huge page OK
>> ia64:
>>         generic_defconfig: with huge page OK
>> mips:
>>         Paul Burton tested cavium octeon with huge page OK
>> parisc:
>>         generic-64bit_defconfig: with huge page does not link
>>         generic-64bit_defconfig: without huge page does not link
>>         BUT not because of this series, any feedback welcome.
>> powerpc:
>>         ppc64_defconfig: without huge page OK
>>         ppc64_defconfig: with huge page OK
>
> Can you also test ppc32 both with and without hugepage 
> (mpc885_ads_defconfig)
>
> Thanks
> Christophe
>
>> sh:
>>         dreamcast_defconfig: with huge page OK
>> sparc:
>>         sparc32_defconfig: without huge page OK
>> sparc64:
>>         sparc64_defconfig: with huge page OK
>> x86:
>>         with huge page OK
>>
>> Alex
>>
>> On 07/23/2018 02:00 PM, Michael Ellerman wrote:
>>> Alex Ghiti <alex@ghiti.fr> writes:
>>>
>>>> Does anyone have any suggestion about those patches ?
>>> Cross compiling it for some non-x86 arches would be a good start :)
>>>
>>> There are cross compilers available here:
>>>
>>>   https://mirrors.edge.kernel.org/pub/tools/crosstool/
>>>
>>>
>>> cheers
>>>
>>>> On 07/09/2018 02:16 PM, Michal Hocko wrote:
>>>>> [CC hugetlb guys - 
>>>>> http://lkml.kernel.org/r/20180705110716.3919-1-alex@ghiti.fr]
>>>>>
>>>>> On Thu 05-07-18 11:07:05, Alexandre Ghiti wrote:
>>>>>> In order to reduce copy/paste of functions across architectures 
>>>>>> and then
>>>>>> make riscv hugetlb port (and future ports) simpler and smaller, this
>>>>>> patchset intends to factorize the numerous hugetlb primitives 
>>>>>> that are
>>>>>> defined across all the architectures.
>>>>>>
>>>>>> Except for prepare_hugepage_range, this patchset moves the 
>>>>>> versions that
>>>>>> are just pass-through to standard pte primitives into
>>>>>> asm-generic/hugetlb.h by using the same #ifdef semantic that can be
>>>>>> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.
>>>>>>
>>>>>> s390 architecture has not been tackled in this serie since it 
>>>>>> does not
>>>>>> use asm-generic/hugetlb.h at all.
>>>>>> powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).
>>>>>>
>>>>>> This patchset has been compiled on x86 only.
>>>>>>
>>>>>> Changelog:
>>>>>>
>>>>>> v4:
>>>>>>    Fix powerpc build error due to misplacing of #include
>>>>>>    <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as
>>>>>>    pointed by Christophe Leroy.
>>>>>>
>>>>>> v1, v2, v3:
>>>>>>    Same version, just problems with email provider and misuse of
>>>>>>    --batch-size option of git send-email
>>>>>>
>>>>>> Alexandre Ghiti (11):
>>>>>>    hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
>>>>>>    hugetlb: Introduce generic version of hugetlb_free_pgd_range
>>>>>>    hugetlb: Introduce generic version of set_huge_pte_at
>>>>>>    hugetlb: Introduce generic version of huge_ptep_get_and_clear
>>>>>>    hugetlb: Introduce generic version of huge_ptep_clear_flush
>>>>>>    hugetlb: Introduce generic version of huge_pte_none
>>>>>>    hugetlb: Introduce generic version of huge_pte_wrprotect
>>>>>>    hugetlb: Introduce generic version of prepare_hugepage_range
>>>>>>    hugetlb: Introduce generic version of huge_ptep_set_wrprotect
>>>>>>    hugetlb: Introduce generic version of huge_ptep_set_access_flags
>>>>>>    hugetlb: Introduce generic version of huge_ptep_get
>>>>>>
>>>>>>   arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
>>>>>>   arch/arm/include/asm/hugetlb.h               | 33 +----------
>>>>>>   arch/arm64/include/asm/hugetlb.h             | 39 +++---------
>>>>>>   arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
>>>>>>   arch/mips/include/asm/hugetlb.h              | 40 +++----------
>>>>>>   arch/parisc/include/asm/hugetlb.h            | 33 +++--------
>>>>>>   arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
>>>>>>   arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
>>>>>>   arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
>>>>>>   arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
>>>>>>   arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
>>>>>>   arch/sh/include/asm/hugetlb.h                | 54 
>>>>>> ++---------------
>>>>>>   arch/sparc/include/asm/hugetlb.h             | 40 +++----------
>>>>>>   arch/x86/include/asm/hugetlb.h               | 72 
>>>>>> +----------------------
>>>>>>   include/asm-generic/hugetlb.h                | 88 
>>>>>> +++++++++++++++++++++++++++-
>>>>>>   15 files changed, 143 insertions(+), 384 deletions(-)
>>>>>>
>>>>>> -- 
>>>>>> 2.16.2
>
>



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Subject: Re: [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture
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Date: Thu, 26 Jul 2018 17:01:57 +0000
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Cc: Michael Ellerman <mpe@ellerman.id.au>,
        Michal Hocko <mhocko@kernel.org>, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
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To: Helge Deller <deller@gmx.de>
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Hi Helge,

Thanks for your tests.
In case it can help you, this is what I get when I try to build 
generic-64bit_defconfig (I truncated the output):

...

 LD vmlinux.o
 MODPOST vmlinux.o
hppa64-linux-ld: init/main.o(.text+0x98): cannot reach strreplace
init/main.o: In function `initcall_blacklisted':
init/.tmp_main.o:(.text+0x98): relocation truncated to fit: 
R_PARISC_PCREL22F against symbol `strreplace' defined in .text section 
in lib/string.o
hppa64-linux-ld: init/main.o(.text+0xbc): cannot reach strcmp
init/.tmp_main.o:(.text+0xbc): relocation truncated to fit: 
R_PARISC_PCREL22F against symbol `strcmp' defined in .text section in 
lib/string.o
hppa64-linux-ld: init/main.o(.text+0x21c): cannot reach strcpy
init/main.o: In function `do_one_initcall':
(.text+0x21c): relocation truncated to fit: R_PARISC_PCREL22F against 
symbol `strcpy' defined in .text section in lib/string.o
hppa64-linux-ld: init/main.o(.text+0x250): cannot reach strlcat
(.text+0x250): relocation truncated to fit: R_PARISC_PCREL22F against 
symbol `strlcat' defined in .text section in lib/string.o
hppa64-linux-ld: init/main.o(.init.text+0x1d4): cannot reach strcmp
init/main.o: In function `do_early_param':
init/.tmp_main.o:(.init.text+0x1d4): relocation truncated to fit: 
R_PARISC_PCREL22F against symbol `strcmp' defined in .text section in 
lib/string.o
hppa64-linux-ld: init/main.o(.init.text+0x250): cannot reach strcmp
init/.tmp_main.o:(.init.text+0x250): relocation truncated to fit: 
R_PARISC_PCREL22F against symbol `strcmp' defined in .text section in 
lib/string.o
hppa64-linux-ld: init/main.o(.init.text+0x294): cannot reach strlen
init/main.o: In function `repair_env_string':
init/.tmp_main.o:(.init.text+0x294): relocation truncated to fit: 
R_PARISC_PCREL22F against symbol `strlen' defined in .text section in 
lib/string.o
hppa64-linux-ld: init/main.o(.init.text+0x2f0): cannot reach strlen
init/.tmp_main.o:(.init.text+0x2f0): relocation truncated to fit: 
R_PARISC_PCREL22F against symbol `strlen' defined in .text section in 
lib/string.o
hppa64-linux-ld: init/main.o(.init.text+0x308): cannot reach memmove
init/.tmp_main.o:(.init.text+0x308): relocation truncated to fit: 
R_PARISC_PCREL22F against symbol `memmove' defined in .text section in 
lib/string.o
hppa64-linux-ld: init/main.o(.init.text+0x454): cannot reach strlen
init/main.o: In function `unknown_bootoption':
init/.tmp_main.o:(.init.text+0x454): relocation truncated to fit: 
R_PARISC_PCREL22F against symbol `strlen' defined in .text section in 
lib/string.o
hppa64-linux-ld: init/main.o(.init.text+0x4dc): cannot reach strchr
init/.tmp_main.o:(.init.text+0x4dc): additional relocation overflows 
omitted from the output
hppa64-linux-ld: init/main.o(.init.text+0x638): cannot reach strncmp
hppa64-linux-ld: init/main.o(.init.text+0x694): cannot reach get_option
hppa64-linux-ld: init/main.o(.init.text+0x744): cannot reach strsep
hppa64-linux-ld: init/main.o(.init.text+0x798): cannot reach strlen
hppa64-linux-ld: init/main.o(.init.text+0x7d0): cannot reach strcpy
hppa64-linux-ld: init/main.o(.init.text+0x954): cannot reach strlcpy
hppa64-linux-ld: init/main.o(.init.text+0xab8): cannot reach strlen
hppa64-linux-ld: init/main.o(.init.text+0xafc): cannot reach strlen
hppa64-linux-ld: init/main.o(.init.text+0xb40): cannot reach strlen
hppa64-linux-ld: init/main.o(.init.text+0xb84): cannot reach strlen
hppa64-linux-ld: init/main.o(.init.text+0xbd0): cannot reach strcpy
hppa64-linux-ld: init/main.o(.init.text+0xbe8): cannot reach strcpy
hppa64-linux-ld: init/main.o(.init.text+0xc3c): cannot reach 
build_all_zonelists
hppa64-linux-ld: init/main.o(.init.text+0x1200): cannot reach unknown
hppa64-linux-ld: init/main.o(.init.text+0x1278): cannot reach 
wait_for_completion
hppa64-linux-ld: init/main.o(.init.text+0x12b0): cannot reach _raw_spin_lock
hppa64-linux-ld: init/main.o(.init.text+0x147c): cannot reach strcpy
hppa64-linux-ld: init/main.o(.ref.text+0x40): cannot reach kernel_thread
hppa64-linux-ld: init/main.o(.ref.text+0x60): cannot reach 
find_task_by_pid_ns
hppa64-linux-ld: init/main.o(.ref.text+0x98): cannot reach 
set_cpus_allowed_ptr
hppa64-linux-ld: init/main.o(.ref.text+0xbc): cannot reach kernel_thread
hppa64-linux-ld: init/main.o(.ref.text+0xd4): cannot reach 
find_task_by_pid_ns
hppa64-linux-ld: init/main.o(.ref.text+0x108): cannot reach complete
hppa64-linux-ld: init/main.o(.ref.text+0x128): cannot reach 
cpu_startup_entry
hppa64-linux-ld: init/main.o(.ref.text+0x164): cannot reach unknown
hppa64-linux-ld: init/main.o(.ref.text+0x174): cannot reach 
async_synchronize_full
hppa64-linux-ld: init/main.o(.ref.text+0x1a4): cannot reach 
rcu_barrier_sched
hppa64-linux-ld: init/main.o(.ref.text+0x1b4): cannot reach mark_rodata_ro
hppa64-linux-ld: init/main.o(.ref.text+0x1d4): cannot reach 
rcu_end_inkernel_boot
hppa64-linux-ld: init/main.o(.ref.text+0x1f4): cannot reach unknown
hppa64-linux-ld: init/main.o(.ref.text+0x218): cannot reach printk
hppa64-linux-ld: init/main.o(.ref.text+0x238): cannot reach unknown
hppa64-linux-ld: init/main.o(.ref.text+0x258): cannot reach panic
hppa64-linux-ld: init/main.o(.ref.text+0x268): cannot reach printk
hppa64-linux-ld: init/main.o(.ref.text+0x280): cannot reach unknown
hppa64-linux-ld: init/main.o(.ref.text+0x29c): cannot reach unknown
hppa64-linux-ld: init/main.o(.ref.text+0x2b8): cannot reach unknown
hppa64-linux-ld: init/main.o(.ref.text+0x2d4): cannot reach unknown
hppa64-linux-ld: init/main.o(.ref.text+0x2f0): cannot reach panic
hppa64-linux-ld: init/do_mounts.o(.text+0x30): cannot reach strncasecmp
hppa64-linux-ld: init/do_mounts.o(.text+0x158): cannot reach strncmp
hppa64-linux-ld: init/do_mounts.o(.text+0x180): cannot reach strchr

...


On 07/26/2018 12:59 PM, Helge Deller wrote:
> * Alex Ghiti <alex@ghiti.fr>:
>> This is the result of the build for all arches tackled in this series
>> rebased on 4.18-rc6:
>> ...
>> parisc:
>>   generic-64bit_defconfig: with huge page does not link
>>   generic-64bit_defconfig: without huge page does not link
>>   BUT not because of this series, any feedback welcome.
> Strange, but I will check that later....
>
> Anyway, I applied your v4-patch to my parisc64 tree, built the kernel,
> started it and ran some hugetlb LTP testcases sucessfully.
> So, please add:
>
> Tested-by: Helge Deller <deller@gmx.de> # parisc
>
> Helge



From - Thu Nov 08 21:41:45 2018
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Subject: Re: [PATCH v4 01/11] hugetlb: Harmonize hugetlb.h arch specific
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Date: Thu, 26 Jul 2018 11:40:49 -0700
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On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> asm-generic/hugetlb.h proposes generic implementations of hugetlb
> related functions: use __HAVE_ARCH_HUGE* defines in order to make arch
> specific implementations of hugetlb functions consistent with pgtable.h
> scheme.
> 

Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
-- 
Mike Kravetz

> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>  arch/arm64/include/asm/hugetlb.h | 2 +-
>  include/asm-generic/hugetlb.h    | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index e73f68569624..3fcf14663dfa 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -81,9 +81,9 @@ extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  				    unsigned long addr, pte_t *ptep);
>  extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  				  unsigned long addr, pte_t *ptep);
> +#define __HAVE_ARCH_HUGE_PTE_CLEAR
>  extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
>  			   pte_t *ptep, unsigned long sz);
> -#define huge_pte_clear huge_pte_clear
>  extern void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
>  				 pte_t *ptep, pte_t pte, unsigned long sz);
>  #define set_huge_swap_pte_at set_huge_swap_pte_at
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index 9d0cde8ab716..3da7cff52360 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -32,7 +32,7 @@ static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot)
>  	return pte_modify(pte, newprot);
>  }
>  
> -#ifndef huge_pte_clear
> +#ifndef __HAVE_ARCH_HUGE_PTE_CLEAR
>  static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
>  		    pte_t *ptep, unsigned long sz)
>  {
> 

From - Thu Nov 08 21:41:45 2018
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Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 02/11] hugetlb: Introduce generic version of
 hugetlb_free_pgd_range
Date: Thu, 26 Jul 2018 11:45:24 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/666269>

On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> arm, arm64, mips, parisc, sh, x86 architectures use the
> same version of hugetlb_free_pgd_range, so move this generic
> implementation into asm-generic/hugetlb.h.
> 

Just one small issue below.  Not absolutely necessary to fix.
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>

> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>  arch/arm/include/asm/hugetlb.h     | 12 ++----------
>  arch/arm64/include/asm/hugetlb.h   | 10 ----------
>  arch/ia64/include/asm/hugetlb.h    |  5 +++--
>  arch/mips/include/asm/hugetlb.h    | 13 ++-----------
>  arch/parisc/include/asm/hugetlb.h  | 12 ++----------
>  arch/powerpc/include/asm/hugetlb.h |  4 +++-
>  arch/sh/include/asm/hugetlb.h      | 12 ++----------
>  arch/sparc/include/asm/hugetlb.h   |  4 +++-
>  arch/x86/include/asm/hugetlb.h     | 11 ++---------
>  include/asm-generic/hugetlb.h      | 11 +++++++++++
>  10 files changed, 30 insertions(+), 64 deletions(-)
> 
> diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
> index 7d26f6c4f0f5..047b893ef95d 100644
> --- a/arch/arm/include/asm/hugetlb.h
> +++ b/arch/arm/include/asm/hugetlb.h
> @@ -23,19 +23,9 @@
>  #define _ASM_ARM_HUGETLB_H
>  
>  #include <asm/page.h>
> -#include <asm-generic/hugetlb.h>
>  
>  #include <asm/hugetlb-3level.h>
>  
> -static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
> -					  unsigned long addr, unsigned long end,
> -					  unsigned long floor,
> -					  unsigned long ceiling)
> -{
> -	free_pgd_range(tlb, addr, end, floor, ceiling);
> -}
> -
> -
>  static inline int is_hugepage_only_range(struct mm_struct *mm,
>  					 unsigned long addr, unsigned long len)
>  {
> @@ -68,4 +58,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
>  	clear_bit(PG_dcache_clean, &page->flags);
>  }
>  
> +#include <asm-generic/hugetlb.h>
> +

I don't think moving the #include is necessary in this case where you are
not adding a __HAVE_ARCH_HUGE* definition.  I like having all the #include
statements at the top if possible.
-- 
Mike Kravetz

>  #endif /* _ASM_ARM_HUGETLB_H */
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 3fcf14663dfa..4af1a800a900 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -25,16 +25,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
>  	return READ_ONCE(*ptep);
>  }
>  
> -
> -
> -static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
> -					  unsigned long addr, unsigned long end,
> -					  unsigned long floor,
> -					  unsigned long ceiling)
> -{
> -	free_pgd_range(tlb, addr, end, floor, ceiling);
> -}
> -
>  static inline int is_hugepage_only_range(struct mm_struct *mm,
>  					 unsigned long addr, unsigned long len)
>  {
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index 74d2a5540aaf..afe9fa4d969b 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -3,9 +3,8 @@
>  #define _ASM_IA64_HUGETLB_H
>  
>  #include <asm/page.h>
> -#include <asm-generic/hugetlb.h>
> -
>  
> +#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
>  void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
>  			    unsigned long end, unsigned long floor,
>  			    unsigned long ceiling);
> @@ -70,4 +69,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  }
>  
> +#include <asm-generic/hugetlb.h>
> +
>  #endif /* _ASM_IA64_HUGETLB_H */
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 982bc0685330..53764050243e 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -10,8 +10,6 @@
>  #define __ASM_HUGETLB_H
>  
>  #include <asm/page.h>
> -#include <asm-generic/hugetlb.h>
> -
>  
>  static inline int is_hugepage_only_range(struct mm_struct *mm,
>  					 unsigned long addr,
> @@ -38,15 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
> -					  unsigned long addr,
> -					  unsigned long end,
> -					  unsigned long floor,
> -					  unsigned long ceiling)
> -{
> -	free_pgd_range(tlb, addr, end, floor, ceiling);
> -}
> -
>  static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
>  				   pte_t *ptep, pte_t pte)
>  {
> @@ -114,4 +103,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  }
>  
> +#include <asm-generic/hugetlb.h>
> +
>  #endif /* __ASM_HUGETLB_H */
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index 58e0f4620426..28c23b68d38d 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -3,8 +3,6 @@
>  #define _ASM_PARISC64_HUGETLB_H
>  
>  #include <asm/page.h>
> -#include <asm-generic/hugetlb.h>
> -
>  
>  void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
>  		     pte_t *ptep, pte_t pte);
> @@ -32,14 +30,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
> -					  unsigned long addr, unsigned long end,
> -					  unsigned long floor,
> -					  unsigned long ceiling)
> -{
> -	free_pgd_range(tlb, addr, end, floor, ceiling);
> -}
> -
>  static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  					 unsigned long addr, pte_t *ptep)
>  {
> @@ -71,4 +61,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  }
>  
> +#include <asm-generic/hugetlb.h>
> +
>  #endif /* _ASM_PARISC64_HUGETLB_H */
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index 3225eb6402cc..a7d5c739df9b 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -4,7 +4,6 @@
>  
>  #ifdef CONFIG_HUGETLB_PAGE
>  #include <asm/page.h>
> -#include <asm-generic/hugetlb.h>
>  
>  extern struct kmem_cache *hugepte_cache;
>  
> @@ -113,6 +112,7 @@ static inline void flush_hugetlb_page(struct vm_area_struct *vma,
>  void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
>  #endif
>  
> +#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
>  void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
>  			    unsigned long end, unsigned long floor,
>  			    unsigned long ceiling);
> @@ -179,6 +179,8 @@ static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  }
>  
> +#include <asm-generic/hugetlb.h>
> +
>  #else /* ! CONFIG_HUGETLB_PAGE */
>  static inline void flush_hugetlb_page(struct vm_area_struct *vma,
>  				      unsigned long vmaddr)
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index 735939c0f513..f6a51b609409 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -4,8 +4,6 @@
>  
>  #include <asm/cacheflush.h>
>  #include <asm/page.h>
> -#include <asm-generic/hugetlb.h>
> -
>  
>  static inline int is_hugepage_only_range(struct mm_struct *mm,
>  					 unsigned long addr,
> @@ -27,14 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
> -					  unsigned long addr, unsigned long end,
> -					  unsigned long floor,
> -					  unsigned long ceiling)
> -{
> -	free_pgd_range(tlb, addr, end, floor, ceiling);
> -}
> -
>  static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
>  				   pte_t *ptep, pte_t pte)
>  {
> @@ -85,4 +75,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
>  	clear_bit(PG_dcache_clean, &page->flags);
>  }
>  
> +#include <asm-generic/hugetlb.h>
> +
>  #endif /* _ASM_SH_HUGETLB_H */
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 300557c66698..59d89b52ccb7 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -3,7 +3,6 @@
>  #define _ASM_SPARC64_HUGETLB_H
>  
>  #include <asm/page.h>
> -#include <asm-generic/hugetlb.h>
>  
>  #ifdef CONFIG_HUGETLB_PAGE
>  struct pud_huge_patch_entry {
> @@ -84,8 +83,11 @@ static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  }
>  
> +#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
>  void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
>  			    unsigned long end, unsigned long floor,
>  			    unsigned long ceiling);
>  
> +#include <asm-generic/hugetlb.h>
> +
>  #endif /* _ASM_SPARC64_HUGETLB_H */
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index 5ed826da5e07..996ce8e15365 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -3,7 +3,6 @@
>  #define _ASM_X86_HUGETLB_H
>  
>  #include <asm/page.h>
> -#include <asm-generic/hugetlb.h>
>  
>  #define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE)
>  
> @@ -28,14 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
> -					  unsigned long addr, unsigned long end,
> -					  unsigned long floor,
> -					  unsigned long ceiling)
> -{
> -	free_pgd_range(tlb, addr, end, floor, ceiling);
> -}
> -
>  static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
>  				   pte_t *ptep, pte_t pte)
>  {
> @@ -90,4 +81,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
>  static inline bool gigantic_page_supported(void) { return true; }
>  #endif
>  
> +#include <asm-generic/hugetlb.h>
> +
>  #endif /* _ASM_X86_HUGETLB_H */
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index 3da7cff52360..c697ca9dda18 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -40,4 +40,15 @@ static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
>  }
>  #endif
>  
> +#ifndef __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
> +static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
> +		unsigned long addr, unsigned long end,
> +		unsigned long floor, unsigned long ceiling)
> +{
> +	free_pgd_range(tlb, addr, end, floor, ceiling);
> +}
> +
> +
> +#endif
> +
>  #endif /* _ASM_GENERIC_HUGETLB_H */
> 

From - Thu Nov 08 21:41:45 2018
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From: Mike Kravetz <mike.kravetz@oracle.com>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 03/11] hugetlb: Introduce generic version of
 set_huge_pte_at
Date: Thu, 26 Jul 2018 12:00:06 -0700
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On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> arm, ia64, mips, powerpc, sh, x86 architectures use the
> same version of set_huge_pte_at, so move this generic
> implementation into asm-generic/hugetlb.h.
> 

Just one comment below, otherwise:
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>

> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>  arch/arm/include/asm/hugetlb-3level.h | 6 ------
>  arch/arm64/include/asm/hugetlb.h      | 1 +
>  arch/ia64/include/asm/hugetlb.h       | 6 ------
>  arch/mips/include/asm/hugetlb.h       | 6 ------
>  arch/parisc/include/asm/hugetlb.h     | 1 +
>  arch/powerpc/include/asm/hugetlb.h    | 6 ------
>  arch/sh/include/asm/hugetlb.h         | 6 ------
>  arch/sparc/include/asm/hugetlb.h      | 1 +
>  arch/x86/include/asm/hugetlb.h        | 6 ------
>  include/asm-generic/hugetlb.h         | 8 +++++++-
>  10 files changed, 10 insertions(+), 37 deletions(-)
> 
> diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
> index d4014fbe5ea3..398fb06e8207 100644
> --- a/arch/arm/include/asm/hugetlb-3level.h
> +++ b/arch/arm/include/asm/hugetlb-3level.h
> @@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
>  	return retval;
>  }
>  
> -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> -				   pte_t *ptep, pte_t pte)
> -{
> -	set_pte_at(mm, addr, ptep, pte);
> -}
> -

Since <asm-generic/hugetlb.h> is not directly included in this file,
I had to search around in the #include dependency chain to look for
it.  It makes me just a tiny bit nervous, but since it compiled, I'm
sure there is not an issue.
-- 
Mike Kravetz

>  static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  					 unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 4af1a800a900..874661a1dff1 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -60,6 +60,7 @@ static inline void arch_clear_hugepage_flags(struct page *page)
>  extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
>  				struct page *page, int writable);
>  #define arch_make_huge_pte arch_make_huge_pte
> +#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
>  extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
>  			    pte_t *ptep, pte_t pte);
>  extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index afe9fa4d969b..a235d6f60fb3 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>  		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
>  }
>  
> -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> -				   pte_t *ptep, pte_t pte)
> -{
> -	set_pte_at(mm, addr, ptep, pte);
> -}
> -
>  static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  					    unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 53764050243e..8ea439041d5d 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -36,12 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> -				   pte_t *ptep, pte_t pte)
> -{
> -	set_pte_at(mm, addr, ptep, pte);
> -}
> -
>  static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  					    unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index 28c23b68d38d..77c8adbac7c3 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -4,6 +4,7 @@
>  
>  #include <asm/page.h>
>  
> +#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
>  void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
>  		     pte_t *ptep, pte_t pte);
>  
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index a7d5c739df9b..0794b53439d4 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -132,12 +132,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> -				   pte_t *ptep, pte_t pte)
> -{
> -	set_pte_at(mm, addr, ptep, pte);
> -}
> -
>  static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  					    unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index f6a51b609409..bc552e37c1c9 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> -				   pte_t *ptep, pte_t pte)
> -{
> -	set_pte_at(mm, addr, ptep, pte);
> -}
> -
>  static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  					    unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 59d89b52ccb7..16b0c53ea6c9 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -12,6 +12,7 @@ struct pud_huge_patch_entry {
>  extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
>  #endif
>  
> +#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
>  void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
>  		     pte_t *ptep, pte_t pte);
>  
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index 996ce8e15365..554d5614b375 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> -				   pte_t *ptep, pte_t pte)
> -{
> -	set_pte_at(mm, addr, ptep, pte);
> -}
> -
>  static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  					    unsigned long addr, pte_t *ptep)
>  {
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index c697ca9dda18..ee010b756246 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -47,8 +47,14 @@ static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
>  {
>  	free_pgd_range(tlb, addr, end, floor, ceiling);
>  }
> +#endif
>  
> -
> +#ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
> +static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> +		pte_t *ptep, pte_t pte)
> +{
> +	set_pte_at(mm, addr, ptep, pte);
> +}
>  #endif
>  
>  #endif /* _ASM_GENERIC_HUGETLB_H */
> 

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Subject: Re: [PATCH v4 04/11] hugetlb: Introduce generic version of
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/666276>

On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> arm, ia64, sh, x86 architectures use the
> same version of huge_ptep_get_and_clear, so move this generic
> implementation into asm-generic/hugetlb.h.
> 

Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
-- 
Mike Kravetz

> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>  arch/arm/include/asm/hugetlb-3level.h | 6 ------
>  arch/arm64/include/asm/hugetlb.h      | 1 +
>  arch/ia64/include/asm/hugetlb.h       | 6 ------
>  arch/mips/include/asm/hugetlb.h       | 1 +
>  arch/parisc/include/asm/hugetlb.h     | 1 +
>  arch/powerpc/include/asm/hugetlb.h    | 1 +
>  arch/sh/include/asm/hugetlb.h         | 6 ------
>  arch/sparc/include/asm/hugetlb.h      | 1 +
>  arch/x86/include/asm/hugetlb.h        | 6 ------
>  include/asm-generic/hugetlb.h         | 8 ++++++++
>  10 files changed, 13 insertions(+), 24 deletions(-)
> 
> diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
> index 398fb06e8207..ad36e84b819a 100644
> --- a/arch/arm/include/asm/hugetlb-3level.h
> +++ b/arch/arm/include/asm/hugetlb-3level.h
> @@ -49,12 +49,6 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  	ptep_set_wrprotect(mm, addr, ptep);
>  }
>  
> -static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
> -					    unsigned long addr, pte_t *ptep)
> -{
> -	return ptep_get_and_clear(mm, addr, ptep);
> -}
> -
>  static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr, pte_t *ptep,
>  					     pte_t pte, int dirty)
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 874661a1dff1..6ae0bcafe162 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -66,6 +66,7 @@ extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
>  extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  				      unsigned long addr, pte_t *ptep,
>  				      pte_t pte, int dirty);
> +#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
>  extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  				     unsigned long addr, pte_t *ptep);
>  extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index a235d6f60fb3..6719c74da0de 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>  		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
>  }
>  
> -static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
> -					    unsigned long addr, pte_t *ptep)
> -{
> -	return ptep_get_and_clear(mm, addr, ptep);
> -}
> -
>  static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  					 unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 8ea439041d5d..0959cc5a41fa 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -36,6 +36,7 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
>  static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  					    unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index 77c8adbac7c3..6e281e1bb336 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -8,6 +8,7 @@
>  void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
>  		     pte_t *ptep, pte_t pte);
>  
> +#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
>  pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
>  			      pte_t *ptep);
>  
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index 0794b53439d4..970101cf9c82 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -132,6 +132,7 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
>  static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  					    unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index bc552e37c1c9..08ee6c00b5e9 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
> -					    unsigned long addr, pte_t *ptep)
> -{
> -	return ptep_get_and_clear(mm, addr, ptep);
> -}
> -
>  static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  					 unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 16b0c53ea6c9..944e3a4bfaff 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -16,6 +16,7 @@ extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
>  void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
>  		     pte_t *ptep, pte_t pte);
>  
> +#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
>  pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
>  			      pte_t *ptep);
>  
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index 554d5614b375..48b8d9b13cc6 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
> -					    unsigned long addr, pte_t *ptep)
> -{
> -	return ptep_get_and_clear(mm, addr, ptep);
> -}
> -
>  static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  					 unsigned long addr, pte_t *ptep)
>  {
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index ee010b756246..0f6f151780dd 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -57,4 +57,12 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
>  }
>  #endif
>  
> +#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
> +static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
> +		unsigned long addr, pte_t *ptep)
> +{
> +	return ptep_get_and_clear(mm, addr, ptep);
> +}
> +#endif
> +
>  #endif /* _ASM_GENERIC_HUGETLB_H */
> 

From - Thu Nov 08 21:41:45 2018
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X-Mozilla-Keys:                                                                                 
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From: Mike Kravetz <mike.kravetz@oracle.com>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 05/11] hugetlb: Introduce generic version of
 huge_ptep_clear_flush
Date: Thu, 26 Jul 2018 12:03:25 -0700
Lines: 160
Approved: news@gmane.org
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To: Alexandre Ghiti <alex@ghiti.fr>, linux@armlinux.org.uk,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/666277>

On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> arm, x86 architectures use the same version of
> huge_ptep_clear_flush, so move this generic implementation into
> asm-generic/hugetlb.h.
> 

Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
-- 
Mike Kravetz

> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>  arch/arm/include/asm/hugetlb-3level.h | 6 ------
>  arch/arm64/include/asm/hugetlb.h      | 1 +
>  arch/ia64/include/asm/hugetlb.h       | 1 +
>  arch/mips/include/asm/hugetlb.h       | 1 +
>  arch/parisc/include/asm/hugetlb.h     | 1 +
>  arch/powerpc/include/asm/hugetlb.h    | 1 +
>  arch/sh/include/asm/hugetlb.h         | 1 +
>  arch/sparc/include/asm/hugetlb.h      | 1 +
>  arch/x86/include/asm/hugetlb.h        | 6 ------
>  include/asm-generic/hugetlb.h         | 8 ++++++++
>  10 files changed, 15 insertions(+), 12 deletions(-)
> 
> diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
> index ad36e84b819a..b897541520ef 100644
> --- a/arch/arm/include/asm/hugetlb-3level.h
> +++ b/arch/arm/include/asm/hugetlb-3level.h
> @@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
>  	return retval;
>  }
>  
> -static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> -					 unsigned long addr, pte_t *ptep)
> -{
> -	ptep_clear_flush(vma, addr, ptep);
> -}
> -
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 6ae0bcafe162..4c8dd488554d 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -71,6 +71,7 @@ extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  				     unsigned long addr, pte_t *ptep);
>  extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  				    unsigned long addr, pte_t *ptep);
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>  extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  				  unsigned long addr, pte_t *ptep);
>  #define __HAVE_ARCH_HUGE_PTE_CLEAR
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index 6719c74da0de..41b5f6adeee4 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -20,6 +20,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>  		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>  static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  					 unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 0959cc5a41fa..7df1f116a3cc 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -48,6 +48,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  	return pte;
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>  static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  					 unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index 6e281e1bb336..9afff26747a1 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -32,6 +32,7 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>  static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  					 unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index 970101cf9c82..0b02856aa85b 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -143,6 +143,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  #endif
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>  static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  					 unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index 08ee6c00b5e9..9abf9c86b769 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -25,6 +25,7 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>  static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  					 unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 944e3a4bfaff..651a9593fcee 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -42,6 +42,7 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>  static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  					 unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index 48b8d9b13cc6..8347d5abf882 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> -					 unsigned long addr, pte_t *ptep)
> -{
> -	ptep_clear_flush(vma, addr, ptep);
> -}
> -
>  static inline int huge_pte_none(pte_t pte)
>  {
>  	return pte_none(pte);
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index 0f6f151780dd..ffa63fd8388d 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -65,4 +65,12 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  }
>  #endif
>  
> +#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
> +static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> +		unsigned long addr, pte_t *ptep)
> +{
> +	ptep_clear_flush(vma, addr, ptep);
> +}
> +#endif
> +
>  #endif /* _ASM_GENERIC_HUGETLB_H */
> 

From - Thu Nov 08 21:41:45 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Mike Kravetz <mike.kravetz@oracle.com>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 07/11] hugetlb: Introduce generic version of
 huge_pte_wrprotect
Date: Thu, 26 Jul 2018 12:05:17 -0700
Lines: 185
Approved: news@gmane.org
Message-ID: <8a8f0608-ff9a-04ea-7c63-2b3bb99b7966@oracle.com>
References: <20180705110716.3919-1-alex@ghiti.fr>
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To: Alexandre Ghiti <alex@ghiti.fr>, linux@armlinux.org.uk,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/666278>

On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> arm, arm64, ia64, mips, parisc, powerpc, sh, sparc, x86
> architectures use the same version of huge_pte_wrprotect, so move
> this generic implementation into asm-generic/hugetlb.h.
> 

Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
-- 
Mike Kravetz

> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>  arch/arm/include/asm/hugetlb.h     | 5 -----
>  arch/arm64/include/asm/hugetlb.h   | 5 -----
>  arch/ia64/include/asm/hugetlb.h    | 5 -----
>  arch/mips/include/asm/hugetlb.h    | 5 -----
>  arch/parisc/include/asm/hugetlb.h  | 5 -----
>  arch/powerpc/include/asm/hugetlb.h | 5 -----
>  arch/sh/include/asm/hugetlb.h      | 5 -----
>  arch/sparc/include/asm/hugetlb.h   | 5 -----
>  arch/x86/include/asm/hugetlb.h     | 5 -----
>  include/asm-generic/hugetlb.h      | 7 +++++++
>  10 files changed, 7 insertions(+), 45 deletions(-)
> 
> diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
> index 3d2ce4dbc145..1e718a626ef9 100644
> --- a/arch/arm/include/asm/hugetlb.h
> +++ b/arch/arm/include/asm/hugetlb.h
> @@ -43,11 +43,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> -	return pte_wrprotect(pte);
> -}
> -
>  static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  	clear_bit(PG_dcache_clean, &page->flags);
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 49247c6f94db..1fd64ebf0cd7 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> -	return pte_wrprotect(pte);
> -}
> -
>  static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  	clear_bit(PG_dcache_clean, &page->flags);
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index bf573500b3c4..82fe3d7a38d9 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> -	return pte_wrprotect(pte);
> -}
> -
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 1c9c4531376c..b3d6bb53ee6e 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -62,11 +62,6 @@ static inline int huge_pte_none(pte_t pte)
>  	return !val || (val == (unsigned long)invalid_pte_table);
>  }
>  
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> -	return pte_wrprotect(pte);
> -}
> -
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index c09d8c74553c..5a102d7251e4 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> -	return pte_wrprotect(pte);
> -}
> -
>  void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep);
>  
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index 3562d46585ba..7123599089c6 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  	flush_hugetlb_page(vma, addr);
>  }
>  
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> -	return pte_wrprotect(pte);
> -}
> -
>  extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  				      unsigned long addr, pte_t *ptep,
>  				      pte_t pte, int dirty);
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index a9f8266f33cf..54f65094efe6 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> -	return pte_wrprotect(pte);
> -}
> -
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 11115bbd712e..f661362376e0 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> -	return pte_wrprotect(pte);
> -}
> -
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index c5fdc53b6e41..19668672ab37 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -27,11 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline pte_t huge_pte_wrprotect(pte_t pte)
> -{
> -	return pte_wrprotect(pte);
> -}
> -
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index 2fc3d68424e9..cd9697672b79 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -80,4 +80,11 @@ static inline int huge_pte_none(pte_t pte)
>  }
>  #endif
>  
> +#ifndef __HAVE_ARCH_HUGE_PTE_WRPROTECT
> +static inline pte_t huge_pte_wrprotect(pte_t pte)
> +{
> +	return pte_wrprotect(pte);
> +}
> +#endif
> +
>  #endif /* _ASM_GENERIC_HUGETLB_H */
> 

From - Thu Nov 08 21:41:46 2018
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From: Mike Kravetz <mike.kravetz@oracle.com>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 08/11] hugetlb: Introduce generic version of
 prepare_hugepage_range
Date: Thu, 26 Jul 2018 12:05:58 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/666280>

On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> arm, arm64, powerpc, sparc, x86 architectures use the same version of
> prepare_hugepage_range, so move this generic implementation into
> asm-generic/hugetlb.h.
> 

Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
-- 
Mike Kravetz

> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>  arch/arm/include/asm/hugetlb.h     | 11 -----------
>  arch/arm64/include/asm/hugetlb.h   | 11 -----------
>  arch/ia64/include/asm/hugetlb.h    |  1 +
>  arch/mips/include/asm/hugetlb.h    |  1 +
>  arch/parisc/include/asm/hugetlb.h  |  1 +
>  arch/powerpc/include/asm/hugetlb.h | 15 ---------------
>  arch/sh/include/asm/hugetlb.h      |  1 +
>  arch/sparc/include/asm/hugetlb.h   | 16 ----------------
>  arch/x86/include/asm/hugetlb.h     | 15 ---------------
>  include/asm-generic/hugetlb.h      | 15 +++++++++++++++
>  10 files changed, 19 insertions(+), 68 deletions(-)
> 
> diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
> index 1e718a626ef9..34fb401efe81 100644
> --- a/arch/arm/include/asm/hugetlb.h
> +++ b/arch/arm/include/asm/hugetlb.h
> @@ -32,17 +32,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>  	return 0;
>  }
>  
> -static inline int prepare_hugepage_range(struct file *file,
> -					 unsigned long addr, unsigned long len)
> -{
> -	struct hstate *h = hstate_file(file);
> -	if (len & ~huge_page_mask(h))
> -		return -EINVAL;
> -	if (addr & ~huge_page_mask(h))
> -		return -EINVAL;
> -	return 0;
> -}
> -
>  static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  	clear_bit(PG_dcache_clean, &page->flags);
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 1fd64ebf0cd7..3e7f6e69b28d 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -31,17 +31,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>  	return 0;
>  }
>  
> -static inline int prepare_hugepage_range(struct file *file,
> -					 unsigned long addr, unsigned long len)
> -{
> -	struct hstate *h = hstate_file(file);
> -	if (len & ~huge_page_mask(h))
> -		return -EINVAL;
> -	if (addr & ~huge_page_mask(h))
> -		return -EINVAL;
> -	return 0;
> -}
> -
>  static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  	clear_bit(PG_dcache_clean, &page->flags);
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index 82fe3d7a38d9..cbe296271030 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -9,6 +9,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
>  			    unsigned long end, unsigned long floor,
>  			    unsigned long ceiling);
>  
> +#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
>  int prepare_hugepage_range(struct file *file,
>  			unsigned long addr, unsigned long len);
>  
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index b3d6bb53ee6e..6ff2531cfb1d 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -18,6 +18,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>  	return 0;
>  }
>  
> +#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
>  static inline int prepare_hugepage_range(struct file *file,
>  					 unsigned long addr,
>  					 unsigned long len)
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index 5a102d7251e4..fb7e0fd858a3 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -22,6 +22,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>   * If the arch doesn't supply something else, assume that hugepage
>   * size aligned regions are ok without further preparation.
>   */
> +#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
>  static inline int prepare_hugepage_range(struct file *file,
>  			unsigned long addr, unsigned long len)
>  {
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index 7123599089c6..69c14ecac133 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -117,21 +117,6 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
>  			    unsigned long end, unsigned long floor,
>  			    unsigned long ceiling);
>  
> -/*
> - * If the arch doesn't supply something else, assume that hugepage
> - * size aligned regions are ok without further preparation.
> - */
> -static inline int prepare_hugepage_range(struct file *file,
> -			unsigned long addr, unsigned long len)
> -{
> -	struct hstate *h = hstate_file(file);
> -	if (len & ~huge_page_mask(h))
> -		return -EINVAL;
> -	if (addr & ~huge_page_mask(h))
> -		return -EINVAL;
> -	return 0;
> -}
> -
>  #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
>  static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  					    unsigned long addr, pte_t *ptep)
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index 54f65094efe6..f1bbd255ee43 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -15,6 +15,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>   * If the arch doesn't supply something else, assume that hugepage
>   * size aligned regions are ok without further preparation.
>   */
> +#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
>  static inline int prepare_hugepage_range(struct file *file,
>  			unsigned long addr, unsigned long len)
>  {
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index f661362376e0..2101ea217f33 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -26,22 +26,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>  	return 0;
>  }
>  
> -/*
> - * If the arch doesn't supply something else, assume that hugepage
> - * size aligned regions are ok without further preparation.
> - */
> -static inline int prepare_hugepage_range(struct file *file,
> -			unsigned long addr, unsigned long len)
> -{
> -	struct hstate *h = hstate_file(file);
> -
> -	if (len & ~huge_page_mask(h))
> -		return -EINVAL;
> -	if (addr & ~huge_page_mask(h))
> -		return -EINVAL;
> -	return 0;
> -}
> -
>  #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>  static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  					 unsigned long addr, pte_t *ptep)
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index 19668672ab37..2e5117d37c7d 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -12,21 +12,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>  	return 0;
>  }
>  
> -/*
> - * If the arch doesn't supply something else, assume that hugepage
> - * size aligned regions are ok without further preparation.
> - */
> -static inline int prepare_hugepage_range(struct file *file,
> -			unsigned long addr, unsigned long len)
> -{
> -	struct hstate *h = hstate_file(file);
> -	if (len & ~huge_page_mask(h))
> -		return -EINVAL;
> -	if (addr & ~huge_page_mask(h))
> -		return -EINVAL;
> -	return 0;
> -}
> -
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index cd9697672b79..6c0c8b0c71e0 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -87,4 +87,19 @@ static inline pte_t huge_pte_wrprotect(pte_t pte)
>  }
>  #endif
>  
> +#ifndef __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
> +static inline int prepare_hugepage_range(struct file *file,
> +		unsigned long addr, unsigned long len)
> +{
> +	struct hstate *h = hstate_file(file);
> +
> +	if (len & ~huge_page_mask(h))
> +		return -EINVAL;
> +	if (addr & ~huge_page_mask(h))
> +		return -EINVAL;
> +
> +	return 0;
> +}
> +#endif
> +
>  #endif /* _ASM_GENERIC_HUGETLB_H */
> 

From - Thu Nov 08 21:41:46 2018
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Subject: Re: [PATCH v4 06/11] hugetlb: Introduce generic version of
 huge_pte_none
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On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> arm, arm64, ia64, parisc, powerpc, sh, sparc, x86 architectures
> use the same version of huge_pte_none, so move this generic
> implementation into asm-generic/hugetlb.h.
> 

Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
-- 
Mike Kravetz

> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>  arch/arm/include/asm/hugetlb.h     | 5 -----
>  arch/arm64/include/asm/hugetlb.h   | 5 -----
>  arch/ia64/include/asm/hugetlb.h    | 5 -----
>  arch/mips/include/asm/hugetlb.h    | 1 +
>  arch/parisc/include/asm/hugetlb.h  | 5 -----
>  arch/powerpc/include/asm/hugetlb.h | 5 -----
>  arch/sh/include/asm/hugetlb.h      | 5 -----
>  arch/sparc/include/asm/hugetlb.h   | 5 -----
>  arch/x86/include/asm/hugetlb.h     | 5 -----
>  include/asm-generic/hugetlb.h      | 7 +++++++
>  10 files changed, 8 insertions(+), 40 deletions(-)
> 
> diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
> index 047b893ef95d..3d2ce4dbc145 100644
> --- a/arch/arm/include/asm/hugetlb.h
> +++ b/arch/arm/include/asm/hugetlb.h
> @@ -43,11 +43,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>  static inline pte_t huge_pte_wrprotect(pte_t pte)
>  {
>  	return pte_wrprotect(pte);
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 4c8dd488554d..49247c6f94db 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>  static inline pte_t huge_pte_wrprotect(pte_t pte)
>  {
>  	return pte_wrprotect(pte);
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index 41b5f6adeee4..bf573500b3c4 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>  static inline pte_t huge_pte_wrprotect(pte_t pte)
>  {
>  	return pte_wrprotect(pte);
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 7df1f116a3cc..1c9c4531376c 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -55,6 +55,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  	flush_tlb_page(vma, addr & huge_page_mask(hstate_vma(vma)));
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTE_NONE
>  static inline int huge_pte_none(pte_t pte)
>  {
>  	unsigned long val = pte_val(pte) & ~_PAGE_GLOBAL;
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index 9afff26747a1..c09d8c74553c 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>  static inline pte_t huge_pte_wrprotect(pte_t pte)
>  {
>  	return pte_wrprotect(pte);
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index 0b02856aa85b..3562d46585ba 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  	flush_hugetlb_page(vma, addr);
>  }
>  
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>  static inline pte_t huge_pte_wrprotect(pte_t pte)
>  {
>  	return pte_wrprotect(pte);
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index 9abf9c86b769..a9f8266f33cf 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>  static inline pte_t huge_pte_wrprotect(pte_t pte)
>  {
>  	return pte_wrprotect(pte);
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 651a9593fcee..11115bbd712e 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>  static inline pte_t huge_pte_wrprotect(pte_t pte)
>  {
>  	return pte_wrprotect(pte);
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index 8347d5abf882..c5fdc53b6e41 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -27,11 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
>  	return 0;
>  }
>  
> -static inline int huge_pte_none(pte_t pte)
> -{
> -	return pte_none(pte);
> -}
> -
>  static inline pte_t huge_pte_wrprotect(pte_t pte)
>  {
>  	return pte_wrprotect(pte);
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index ffa63fd8388d..2fc3d68424e9 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -73,4 +73,11 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  }
>  #endif
>  
> +#ifndef __HAVE_ARCH_HUGE_PTE_NONE
> +static inline int huge_pte_none(pte_t pte)
> +{
> +	return pte_none(pte);
> +}
> +#endif
> +
>  #endif /* _ASM_GENERIC_HUGETLB_H */
> 


From - Thu Nov 08 21:41:46 2018
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From: Mike Kravetz <mike.kravetz@oracle.com>
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Subject: Re: [PATCH v4 09/11] hugetlb: Introduce generic version of
 huge_ptep_set_wrprotect
Date: Thu, 26 Jul 2018 12:10:49 -0700
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On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> arm, ia64, mips, sh, x86 architectures use the same version
> of huge_ptep_set_wrprotect, so move this generic implementation into
> asm-generic/hugetlb.h.
> Note: powerpc uses twice for book3s/32 and nohash/32 the same version as
> the above architectures, but the modification was not straightforward
> and hence has not been done.
> 

Just one small comment, otehrwise
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>

> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>  arch/arm/include/asm/hugetlb-3level.h        | 6 ------
>  arch/arm64/include/asm/hugetlb.h             | 1 +
>  arch/ia64/include/asm/hugetlb.h              | 6 ------
>  arch/mips/include/asm/hugetlb.h              | 6 ------
>  arch/parisc/include/asm/hugetlb.h            | 1 +
>  arch/powerpc/include/asm/book3s/32/pgtable.h | 2 ++
>  arch/powerpc/include/asm/book3s/64/pgtable.h | 1 +
>  arch/powerpc/include/asm/nohash/32/pgtable.h | 2 ++
>  arch/powerpc/include/asm/nohash/64/pgtable.h | 1 +

As in patch 03, the book3s and nohash header files do not explicitly
include <asm-generic/hugetlb.h>.  With these, I had an even harder time
finding out who brought in that file.  This is not an issue with this
patch, just wish there was some easier way to check/prove include file
dependencies.  Since it compiles, I am sure it is OK.
-- 
Mike Kravetz

>  arch/sh/include/asm/hugetlb.h                | 6 ------
>  arch/sparc/include/asm/hugetlb.h             | 1 +
>  arch/x86/include/asm/hugetlb.h               | 6 ------
>  include/asm-generic/hugetlb.h                | 8 ++++++++
>  13 files changed, 17 insertions(+), 30 deletions(-)
> 
> diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
> index b897541520ef..8247cd6a2ac6 100644
> --- a/arch/arm/include/asm/hugetlb-3level.h
> +++ b/arch/arm/include/asm/hugetlb-3level.h
> @@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
>  	return retval;
>  }
>  
> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> -					   unsigned long addr, pte_t *ptep)
> -{
> -	ptep_set_wrprotect(mm, addr, ptep);
> -}
> -
>  static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr, pte_t *ptep,
>  					     pte_t pte, int dirty)
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 3e7f6e69b28d..f4f69ae5466e 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -48,6 +48,7 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
>  extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  				     unsigned long addr, pte_t *ptep);
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  				    unsigned long addr, pte_t *ptep);
>  #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index cbe296271030..49d1f7949f3a 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -27,12 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> -					   unsigned long addr, pte_t *ptep)
> -{
> -	ptep_set_wrprotect(mm, addr, ptep);
> -}
> -
>  static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr, pte_t *ptep,
>  					     pte_t pte, int dirty)
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 6ff2531cfb1d..3dcf5debf8c4 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -63,12 +63,6 @@ static inline int huge_pte_none(pte_t pte)
>  	return !val || (val == (unsigned long)invalid_pte_table);
>  }
>  
> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> -					   unsigned long addr, pte_t *ptep)
> -{
> -	ptep_set_wrprotect(mm, addr, ptep);
> -}
> -
>  static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr,
>  					     pte_t *ptep, pte_t pte,
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index fb7e0fd858a3..9c3950ca2974 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -39,6 +39,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep);
>  
> diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
> index 02f5acd7ccc4..d2cd1d0226e9 100644
> --- a/arch/powerpc/include/asm/book3s/32/pgtable.h
> +++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
> @@ -228,6 +228,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
>  {
>  	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
>  }
> +
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
> index 42aafba7a308..7d957f7c47cd 100644
> --- a/arch/powerpc/include/asm/book3s/64/pgtable.h
> +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
> @@ -451,6 +451,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
>  		pte_update(mm, addr, ptep, 0, _PAGE_PRIVILEGED, 0);
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
> index 7c46a98cc7f4..f39e200d9591 100644
> --- a/arch/powerpc/include/asm/nohash/32/pgtable.h
> +++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
> @@ -249,6 +249,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
>  {
>  	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
>  }
> +
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
> index dd0c7236208f..69fbf7e9b4db 100644
> --- a/arch/powerpc/include/asm/nohash/64/pgtable.h
> +++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
> @@ -238,6 +238,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
>  	pte_update(mm, addr, ptep, _PAGE_RW, 0, 0);
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index f1bbd255ee43..8df4004977b9 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -32,12 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> -					   unsigned long addr, pte_t *ptep)
> -{
> -	ptep_set_wrprotect(mm, addr, ptep);
> -}
> -
>  static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr, pte_t *ptep,
>  					     pte_t pte, int dirty)
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 2101ea217f33..c41754a113f3 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -32,6 +32,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index 2e5117d37c7d..de370836a17d 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -12,12 +12,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>  	return 0;
>  }
>  
> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> -					   unsigned long addr, pte_t *ptep)
> -{
> -	ptep_set_wrprotect(mm, addr, ptep);
> -}
> -
>  static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr, pte_t *ptep,
>  					     pte_t pte, int dirty)
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index 6c0c8b0c71e0..9b9039845278 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -102,4 +102,12 @@ static inline int prepare_hugepage_range(struct file *file,
>  }
>  #endif
>  
> +#ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
> +static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> +		unsigned long addr, pte_t *ptep)
> +{
> +	ptep_set_wrprotect(mm, addr, ptep);
> +}
> +#endif
> +
>  #endif /* _ASM_GENERIC_HUGETLB_H */
> 

From - Thu Nov 08 21:41:46 2018
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X-Mozilla-Keys:                                                                                 
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From: Mike Kravetz <mike.kravetz@oracle.com>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 10/11] hugetlb: Introduce generic version of
 huge_ptep_set_access_flags
Date: Thu, 26 Jul 2018 12:12:35 -0700
Lines: 173
Approved: news@gmane.org
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References: <20180705110716.3919-1-alex@ghiti.fr>
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On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> arm, ia64, sh, x86 architectures use the same version
> of huge_ptep_set_access_flags, so move this generic implementation
> into asm-generic/hugetlb.h.
> 

Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
-- 
Mike Kravetz

> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>  arch/arm/include/asm/hugetlb-3level.h | 7 -------
>  arch/arm64/include/asm/hugetlb.h      | 1 +
>  arch/ia64/include/asm/hugetlb.h       | 7 -------
>  arch/mips/include/asm/hugetlb.h       | 1 +
>  arch/parisc/include/asm/hugetlb.h     | 1 +
>  arch/powerpc/include/asm/hugetlb.h    | 1 +
>  arch/sh/include/asm/hugetlb.h         | 7 -------
>  arch/sparc/include/asm/hugetlb.h      | 1 +
>  arch/x86/include/asm/hugetlb.h        | 7 -------
>  include/asm-generic/hugetlb.h         | 9 +++++++++
>  10 files changed, 14 insertions(+), 28 deletions(-)
> 
> diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
> index 8247cd6a2ac6..54e4b097b1f5 100644
> --- a/arch/arm/include/asm/hugetlb-3level.h
> +++ b/arch/arm/include/asm/hugetlb-3level.h
> @@ -37,11 +37,4 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
>  	return retval;
>  }
>  
> -static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> -					     unsigned long addr, pte_t *ptep,
> -					     pte_t pte, int dirty)
> -{
> -	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
> -}
> -
>  #endif /* _ASM_ARM_HUGETLB_3LEVEL_H */
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index f4f69ae5466e..80887abcef7f 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -42,6 +42,7 @@ extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
>  #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
>  extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
>  			    pte_t *ptep, pte_t pte);
> +#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
>  extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  				      unsigned long addr, pte_t *ptep,
>  				      pte_t pte, int dirty);
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index 49d1f7949f3a..e9b42750fdf5 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -27,13 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> -					     unsigned long addr, pte_t *ptep,
> -					     pte_t pte, int dirty)
> -{
> -	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
> -}
> -
>  static inline pte_t huge_ptep_get(pte_t *ptep)
>  {
>  	return *ptep;
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 3dcf5debf8c4..120adc3b2ffd 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -63,6 +63,7 @@ static inline int huge_pte_none(pte_t pte)
>  	return !val || (val == (unsigned long)invalid_pte_table);
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
>  static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr,
>  					     pte_t *ptep, pte_t pte,
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index 9c3950ca2974..165b4e5a6f32 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -43,6 +43,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep);
>  
> +#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
>  int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr, pte_t *ptep,
>  					     pte_t pte, int dirty);
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index 69c14ecac133..658bf7136a3c 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -137,6 +137,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  	flush_hugetlb_page(vma, addr);
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
>  extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  				      unsigned long addr, pte_t *ptep,
>  				      pte_t pte, int dirty);
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index 8df4004977b9..c87195ae0cfa 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -32,13 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> -					     unsigned long addr, pte_t *ptep,
> -					     pte_t pte, int dirty)
> -{
> -	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
> -}
> -
>  static inline pte_t huge_ptep_get(pte_t *ptep)
>  {
>  	return *ptep;
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index c41754a113f3..028a1465fbe7 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -40,6 +40,7 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  	set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
>  static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr, pte_t *ptep,
>  					     pte_t pte, int dirty)
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index de370836a17d..1df8944904c6 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -12,13 +12,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>  	return 0;
>  }
>  
> -static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> -					     unsigned long addr, pte_t *ptep,
> -					     pte_t pte, int dirty)
> -{
> -	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
> -}
> -
>  static inline pte_t huge_ptep_get(pte_t *ptep)
>  {
>  	return *ptep;
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index 9b9039845278..f3c99a03ee83 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -110,4 +110,13 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  }
>  #endif
>  
> +#ifndef __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
> +static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> +		unsigned long addr, pte_t *ptep,
> +		pte_t pte, int dirty)
> +{
> +	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
> +}
> +#endif
> +
>  #endif /* _ASM_GENERIC_HUGETLB_H */
> 

From - Thu Nov 08 21:41:46 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Alex Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture
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Date: Thu, 26 Jul 2018 19:13:59 +0000
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2831695>

Actually, I went back to v4.17, and I have the same errors.

I used:

$ make ARCH=parisc O=build_parisc generic-64bit_defconfig
$ PATH=/home/alex/wip/toolchain/gcc-8.1.0-nolibc/hppa64-linux/bin:$PATH 
make ARCH=parisc CROSS_COMPILE=hppa64-linux-

I downloaded the crosscompiler here: 
https://mirrors.edge.kernel.org/pub/tools/crosstool/files/bin/x86_64/8.1.0/


On 07/26/2018 05:01 PM, Alex Ghiti wrote:
> Hi Helge,
>
> Thanks for your tests.
> In case it can help you, this is what I get when I try to build 
> generic-64bit_defconfig (I truncated the output):
>
> ...
>
> LD vmlinux.o
> MODPOST vmlinux.o
> hppa64-linux-ld: init/main.o(.text+0x98): cannot reach strreplace
> init/main.o: In function `initcall_blacklisted':
> init/.tmp_main.o:(.text+0x98): relocation truncated to fit: 
> R_PARISC_PCREL22F against symbol `strreplace' defined in .text section 
> in lib/string.o
> hppa64-linux-ld: init/main.o(.text+0xbc): cannot reach strcmp
> init/.tmp_main.o:(.text+0xbc): relocation truncated to fit: 
> R_PARISC_PCREL22F against symbol `strcmp' defined in .text section in 
> lib/string.o
> hppa64-linux-ld: init/main.o(.text+0x21c): cannot reach strcpy
> init/main.o: In function `do_one_initcall':
> (.text+0x21c): relocation truncated to fit: R_PARISC_PCREL22F against 
> symbol `strcpy' defined in .text section in lib/string.o
> hppa64-linux-ld: init/main.o(.text+0x250): cannot reach strlcat
> (.text+0x250): relocation truncated to fit: R_PARISC_PCREL22F against 
> symbol `strlcat' defined in .text section in lib/string.o
> hppa64-linux-ld: init/main.o(.init.text+0x1d4): cannot reach strcmp
> init/main.o: In function `do_early_param':
> init/.tmp_main.o:(.init.text+0x1d4): relocation truncated to fit: 
> R_PARISC_PCREL22F against symbol `strcmp' defined in .text section in 
> lib/string.o
> hppa64-linux-ld: init/main.o(.init.text+0x250): cannot reach strcmp
> init/.tmp_main.o:(.init.text+0x250): relocation truncated to fit: 
> R_PARISC_PCREL22F against symbol `strcmp' defined in .text section in 
> lib/string.o
> hppa64-linux-ld: init/main.o(.init.text+0x294): cannot reach strlen
> init/main.o: In function `repair_env_string':
> init/.tmp_main.o:(.init.text+0x294): relocation truncated to fit: 
> R_PARISC_PCREL22F against symbol `strlen' defined in .text section in 
> lib/string.o
> hppa64-linux-ld: init/main.o(.init.text+0x2f0): cannot reach strlen
> init/.tmp_main.o:(.init.text+0x2f0): relocation truncated to fit: 
> R_PARISC_PCREL22F against symbol `strlen' defined in .text section in 
> lib/string.o
> hppa64-linux-ld: init/main.o(.init.text+0x308): cannot reach memmove
> init/.tmp_main.o:(.init.text+0x308): relocation truncated to fit: 
> R_PARISC_PCREL22F against symbol `memmove' defined in .text section in 
> lib/string.o
> hppa64-linux-ld: init/main.o(.init.text+0x454): cannot reach strlen
> init/main.o: In function `unknown_bootoption':
> init/.tmp_main.o:(.init.text+0x454): relocation truncated to fit: 
> R_PARISC_PCREL22F against symbol `strlen' defined in .text section in 
> lib/string.o
> hppa64-linux-ld: init/main.o(.init.text+0x4dc): cannot reach strchr
> init/.tmp_main.o:(.init.text+0x4dc): additional relocation overflows 
> omitted from the output
> hppa64-linux-ld: init/main.o(.init.text+0x638): cannot reach strncmp
> hppa64-linux-ld: init/main.o(.init.text+0x694): cannot reach get_option
> hppa64-linux-ld: init/main.o(.init.text+0x744): cannot reach strsep
> hppa64-linux-ld: init/main.o(.init.text+0x798): cannot reach strlen
> hppa64-linux-ld: init/main.o(.init.text+0x7d0): cannot reach strcpy
> hppa64-linux-ld: init/main.o(.init.text+0x954): cannot reach strlcpy
> hppa64-linux-ld: init/main.o(.init.text+0xab8): cannot reach strlen
> hppa64-linux-ld: init/main.o(.init.text+0xafc): cannot reach strlen
> hppa64-linux-ld: init/main.o(.init.text+0xb40): cannot reach strlen
> hppa64-linux-ld: init/main.o(.init.text+0xb84): cannot reach strlen
> hppa64-linux-ld: init/main.o(.init.text+0xbd0): cannot reach strcpy
> hppa64-linux-ld: init/main.o(.init.text+0xbe8): cannot reach strcpy
> hppa64-linux-ld: init/main.o(.init.text+0xc3c): cannot reach 
> build_all_zonelists
> hppa64-linux-ld: init/main.o(.init.text+0x1200): cannot reach unknown
> hppa64-linux-ld: init/main.o(.init.text+0x1278): cannot reach 
> wait_for_completion
> hppa64-linux-ld: init/main.o(.init.text+0x12b0): cannot reach 
> _raw_spin_lock
> hppa64-linux-ld: init/main.o(.init.text+0x147c): cannot reach strcpy
> hppa64-linux-ld: init/main.o(.ref.text+0x40): cannot reach kernel_thread
> hppa64-linux-ld: init/main.o(.ref.text+0x60): cannot reach 
> find_task_by_pid_ns
> hppa64-linux-ld: init/main.o(.ref.text+0x98): cannot reach 
> set_cpus_allowed_ptr
> hppa64-linux-ld: init/main.o(.ref.text+0xbc): cannot reach kernel_thread
> hppa64-linux-ld: init/main.o(.ref.text+0xd4): cannot reach 
> find_task_by_pid_ns
> hppa64-linux-ld: init/main.o(.ref.text+0x108): cannot reach complete
> hppa64-linux-ld: init/main.o(.ref.text+0x128): cannot reach 
> cpu_startup_entry
> hppa64-linux-ld: init/main.o(.ref.text+0x164): cannot reach unknown
> hppa64-linux-ld: init/main.o(.ref.text+0x174): cannot reach 
> async_synchronize_full
> hppa64-linux-ld: init/main.o(.ref.text+0x1a4): cannot reach 
> rcu_barrier_sched
> hppa64-linux-ld: init/main.o(.ref.text+0x1b4): cannot reach 
> mark_rodata_ro
> hppa64-linux-ld: init/main.o(.ref.text+0x1d4): cannot reach 
> rcu_end_inkernel_boot
> hppa64-linux-ld: init/main.o(.ref.text+0x1f4): cannot reach unknown
> hppa64-linux-ld: init/main.o(.ref.text+0x218): cannot reach printk
> hppa64-linux-ld: init/main.o(.ref.text+0x238): cannot reach unknown
> hppa64-linux-ld: init/main.o(.ref.text+0x258): cannot reach panic
> hppa64-linux-ld: init/main.o(.ref.text+0x268): cannot reach printk
> hppa64-linux-ld: init/main.o(.ref.text+0x280): cannot reach unknown
> hppa64-linux-ld: init/main.o(.ref.text+0x29c): cannot reach unknown
> hppa64-linux-ld: init/main.o(.ref.text+0x2b8): cannot reach unknown
> hppa64-linux-ld: init/main.o(.ref.text+0x2d4): cannot reach unknown
> hppa64-linux-ld: init/main.o(.ref.text+0x2f0): cannot reach panic
> hppa64-linux-ld: init/do_mounts.o(.text+0x30): cannot reach strncasecmp
> hppa64-linux-ld: init/do_mounts.o(.text+0x158): cannot reach strncmp
> hppa64-linux-ld: init/do_mounts.o(.text+0x180): cannot reach strchr
>
> ...
>
>
> On 07/26/2018 12:59 PM, Helge Deller wrote:
>> * Alex Ghiti <alex@ghiti.fr>:
>>> This is the result of the build for all arches tackled in this series
>>> rebased on 4.18-rc6:
>>> ...
>>> parisc:
>>>  generic-64bit_defconfig: with huge page does not link
>>>  generic-64bit_defconfig: without huge page does not link
>>>  BUT not because of this series, any feedback welcome.
>> Strange, but I will check that later....
>>
>> Anyway, I applied your v4-patch to my parisc64 tree, built the kernel,
>> started it and ran some hugetlb LTP testcases sucessfully.
>> So, please add:
>>
>> Tested-by: Helge Deller <deller@gmx.de> # parisc
>>
>> Helge
>



From - Thu Nov 08 21:41:46 2018
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From: Mike Kravetz <mike.kravetz@oracle.com>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 11/11] hugetlb: Introduce generic version of
 huge_ptep_get
Date: Thu, 26 Jul 2018 12:13:52 -0700
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On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> ia64, mips, parisc, powerpc, sh, sparc, x86 architectures use the
> same version of huge_ptep_get, so move this generic implementation into
> asm-generic/hugetlb.h.
> 

Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
-- 
Mike Kravetz

> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
>  arch/arm/include/asm/hugetlb-3level.h | 1 +
>  arch/arm64/include/asm/hugetlb.h      | 1 +
>  arch/ia64/include/asm/hugetlb.h       | 5 -----
>  arch/mips/include/asm/hugetlb.h       | 5 -----
>  arch/parisc/include/asm/hugetlb.h     | 5 -----
>  arch/powerpc/include/asm/hugetlb.h    | 5 -----
>  arch/sh/include/asm/hugetlb.h         | 5 -----
>  arch/sparc/include/asm/hugetlb.h      | 5 -----
>  arch/x86/include/asm/hugetlb.h        | 5 -----
>  include/asm-generic/hugetlb.h         | 7 +++++++
>  10 files changed, 9 insertions(+), 35 deletions(-)
> 
> diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
> index 54e4b097b1f5..0d9f3918fa7e 100644
> --- a/arch/arm/include/asm/hugetlb-3level.h
> +++ b/arch/arm/include/asm/hugetlb-3level.h
> @@ -29,6 +29,7 @@
>   * ptes.
>   * (The valid bit is automatically cleared by set_pte_at for PROT_NONE ptes).
>   */
> +#define __HAVE_ARCH_HUGE_PTEP_GET
>  static inline pte_t huge_ptep_get(pte_t *ptep)
>  {
>  	pte_t retval = *ptep;
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 80887abcef7f..fb6609875455 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -20,6 +20,7 @@
>  
>  #include <asm/page.h>
>  
> +#define __HAVE_ARCH_HUGE_PTEP_GET
>  static inline pte_t huge_ptep_get(pte_t *ptep)
>  {
>  	return READ_ONCE(*ptep);
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index e9b42750fdf5..36cc0396b214 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -27,11 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline pte_t huge_ptep_get(pte_t *ptep)
> -{
> -	return *ptep;
> -}
> -
>  static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  }
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 120adc3b2ffd..425bb6fc3bda 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -82,11 +82,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  	return changed;
>  }
>  
> -static inline pte_t huge_ptep_get(pte_t *ptep)
> -{
> -	return *ptep;
> -}
> -
>  static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  }
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index 165b4e5a6f32..7cb595dcb7d7 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -48,11 +48,6 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr, pte_t *ptep,
>  					     pte_t pte, int dirty);
>  
> -static inline pte_t huge_ptep_get(pte_t *ptep)
> -{
> -	return *ptep;
> -}
> -
>  static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  }
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index 658bf7136a3c..33a2d9e3ea9e 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -142,11 +142,6 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  				      unsigned long addr, pte_t *ptep,
>  				      pte_t pte, int dirty);
>  
> -static inline pte_t huge_ptep_get(pte_t *ptep)
> -{
> -	return *ptep;
> -}
> -
>  static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  }
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index c87195ae0cfa..6f025fe18146 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -32,11 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline pte_t huge_ptep_get(pte_t *ptep)
> -{
> -	return *ptep;
> -}
> -
>  static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  	clear_bit(PG_dcache_clean, &page->flags);
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 028a1465fbe7..3963f80d1cb3 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -53,11 +53,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  	return changed;
>  }
>  
> -static inline pte_t huge_ptep_get(pte_t *ptep)
> -{
> -	return *ptep;
> -}
> -
>  static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  }
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index 1df8944904c6..c97b34a29054 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -12,11 +12,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>  	return 0;
>  }
>  
> -static inline pte_t huge_ptep_get(pte_t *ptep)
> -{
> -	return *ptep;
> -}
> -
>  static inline void arch_clear_hugepage_flags(struct page *page)
>  {
>  }
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index f3c99a03ee83..71d7b77eea50 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -119,4 +119,11 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  }
>  #endif
>  
> +#ifndef __HAVE_ARCH_HUGE_PTEP_GET
> +static inline pte_t huge_ptep_get(pte_t *ptep)
> +{
> +	return *ptep;
> +}
> +#endif
> +
>  #endif /* _ASM_GENERIC_HUGETLB_H */
> 

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Subject: Re: [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture
 primitives
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On 07/26/2018 04:46 AM, Michael Ellerman wrote:
> Mike Kravetz <mike.kravetz@oracle.com> writes:
> 
>> On 07/20/2018 11:37 AM, Alex Ghiti wrote:
>>> Does anyone have any suggestion about those patches ?
>>
>> I only took a quick look.  From the hugetlb perspective, I like the
>> idea of moving routines to a common file.  If any of the arch owners
>> (or anyone else) agree, I can do a review of the series.
> 
> The conversions look pretty good to me. If you want to give it a review
> then from my point of view it could go in -mm to shake out any bugs.

Nothing of significance found in a review.  As others have suggested,
the (cross)compiler may be better at finding issues than human eyes.

I also suggest it be added to -mm.
-- 
Mike Kravetz


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Hi Alex,

On 26.07.2018 21:13, Alex Ghiti wrote:
> $ make ARCH=parisc O=build_parisc generic-64bit_defconfig
> $ PATH=/home/alex/wip/toolchain/gcc-8.1.0-nolibc/hppa64-linux/bin:$PATH make ARCH=parisc CROSS_COMPILE=hppa64-linux-
> 
>> ...
>> LD vmlinux.o
>> MODPOST vmlinux.o
>> hppa64-linux-ld: init/main.o(.text+0x98): cannot reach strreplace
>> init/main.o: In function `initcall_blacklisted':
>> init/.tmp_main.o:(.text+0x98): relocation truncated to fit: R_PARISC_PCREL22F against symbol `strreplace' defined in .text section in lib/string.o
>> hppa64-linux-ld: init/main.o(.text+0xbc): cannot reach strcmp

In order to be able to link vmlinux, we need to enable 
CONFIG_MLONGCALLS=y in the defconfig.

Nevertheless, I see some modversion issues too which I still need 
to analyze (but that's a completely off-topic issue here).

Helge


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Subject: Re: [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture
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To: Mike Kravetz <mike.kravetz@oracle.com>,
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        Michal Hocko <mhocko@kernel.org>
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Hi Mike,

Thanks for your review. I'm going to fix the 2nd patch as you said, 
you're right, no need to move the #include at the bottom of the file.
I'm going to post a v5, add -mm in cc and ask for inclusion in their tree.

Thanks again for your time,

Alex


On 07/26/2018 09:16 PM, Mike Kravetz wrote:
> On 07/26/2018 04:46 AM, Michael Ellerman wrote:
>> Mike Kravetz <mike.kravetz@oracle.com> writes:
>>
>>> On 07/20/2018 11:37 AM, Alex Ghiti wrote:
>>>> Does anyone have any suggestion about those patches ?
>>> I only took a quick look.  From the hugetlb perspective, I like the
>>> idea of moving routines to a common file.  If any of the arch owners
>>> (or anyone else) agree, I can do a review of the series.
>> The conversions look pretty good to me. If you want to give it a review
>> then from my point of view it could go in -mm to shake out any bugs.
> Nothing of significance found in a review.  As others have suggested,
> the (cross)compiler may be better at finding issues than human eyes.
>
> I also suggest it be added to -mm.



From - Thu Nov 08 21:41:46 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v5 00/11] hugetlb: Factorize hugetlb architecture primitives
Date: Tue, 31 Jul 2018 06:01:44 +0000
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[CC linux-mm for inclusion in -mm tree] 

In order to reduce copy/paste of functions across architectures and then
make riscv hugetlb port (and future ports) simpler and smaller, this
patchset intends to factorize the numerous hugetlb primitives that are
defined across all the architectures.

Except for prepare_hugepage_range, this patchset moves the versions that
are just pass-through to standard pte primitives into
asm-generic/hugetlb.h by using the same #ifdef semantic that can be
found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.

s390 architecture has not been tackled in this serie since it does not
use asm-generic/hugetlb.h at all.
powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect).

This patchset has been compiled on all addressed architectures with
success (except for parisc, but the problem does not come from this series). 

Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts

Changelog:

v5:
  As suggested by Mike Kravetz, no need to move the #include
  <asm-generic/hugetlb.h> for arm and x86 architectures, let it live at
  the top of the file.

v4:
  Fix powerpc build error due to misplacing of #include
  <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as
  pointed by Christophe Leroy.

v1, v2, v3:
  Same version, just problems with email provider and misuse of
  --batch-size option of git send-email

Alexandre Ghiti (11):
  hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
  hugetlb: Introduce generic version of hugetlb_free_pgd_range
  hugetlb: Introduce generic version of set_huge_pte_at
  hugetlb: Introduce generic version of huge_ptep_get_and_clear
  hugetlb: Introduce generic version of huge_ptep_clear_flush
  hugetlb: Introduce generic version of huge_pte_none
  hugetlb: Introduce generic version of huge_pte_wrprotect
  hugetlb: Introduce generic version of prepare_hugepage_range
  hugetlb: Introduce generic version of huge_ptep_set_wrprotect
  hugetlb: Introduce generic version of huge_ptep_set_access_flags
  hugetlb: Introduce generic version of huge_ptep_get

 arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
 arch/arm/include/asm/hugetlb.h               | 30 ----------
 arch/arm64/include/asm/hugetlb.h             | 39 +++---------
 arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
 arch/mips/include/asm/hugetlb.h              | 40 +++----------
 arch/parisc/include/asm/hugetlb.h            | 33 +++--------
 arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +
 arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
 arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
 arch/powerpc/include/asm/nohash/32/pgtable.h |  2 +
 arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
 arch/sh/include/asm/hugetlb.h                | 54 ++---------------
 arch/sparc/include/asm/hugetlb.h             | 40 +++----------
 arch/x86/include/asm/hugetlb.h               | 69 ----------------------
 include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
 15 files changed, 139 insertions(+), 382 deletions(-)

-- 
2.16.2



From - Thu Nov 08 21:41:46 2018
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Subject: [PATCH v5 01/11] hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
Date: Tue, 31 Jul 2018 06:01:45 +0000
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asm-generic/hugetlb.h proposes generic implementations of hugetlb
related functions: use __HAVE_ARCH_HUGE* defines in order to make arch
specific implementations of hugetlb functions consistent with pgtable.h
scheme.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm64/include/asm/hugetlb.h | 2 +-
 include/asm-generic/hugetlb.h    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index e73f68569624..3fcf14663dfa 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -81,9 +81,9 @@ extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTE_CLEAR
 extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 			   pte_t *ptep, unsigned long sz);
-#define huge_pte_clear huge_pte_clear
 extern void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
 				 pte_t *ptep, pte_t pte, unsigned long sz);
 #define set_huge_swap_pte_at set_huge_swap_pte_at
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9d0cde8ab716..3da7cff52360 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -32,7 +32,7 @@ static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot)
 	return pte_modify(pte, newprot);
 }
 
-#ifndef huge_pte_clear
+#ifndef __HAVE_ARCH_HUGE_PTE_CLEAR
 static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 		    pte_t *ptep, unsigned long sz)
 {
-- 
2.16.2



From - Thu Nov 08 21:41:46 2018
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Subject: [PATCH v5 02/11] hugetlb: Introduce generic version of hugetlb_free_pgd_range
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Xref: news.gmane.org gmane.linux.kernel:2834700 gmane.linux.kernel.mm:200884 gmane.linux.ports.arm.kernel:666837 gmane.linux.ports.ia64:29005 gmane.linux.ports.mips.general:65777 gmane.linux.ports.parisc:28842 gmane.linux.ports.ppc64.devel:160651 gmane.linux.ports.sh.devel:57288 gmane.linux.ports.sparc:28148 gmane.linux.kernel.cross-arch:45526
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2834700>

arm, arm64, mips, parisc, sh, x86 architectures use the
same version of hugetlb_free_pgd_range, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb.h     |  9 ---------
 arch/arm64/include/asm/hugetlb.h   | 10 ----------
 arch/ia64/include/asm/hugetlb.h    |  5 +++--
 arch/mips/include/asm/hugetlb.h    | 13 ++-----------
 arch/parisc/include/asm/hugetlb.h  | 12 ++----------
 arch/powerpc/include/asm/hugetlb.h |  4 +++-
 arch/sh/include/asm/hugetlb.h      | 12 ++----------
 arch/sparc/include/asm/hugetlb.h   |  4 +++-
 arch/x86/include/asm/hugetlb.h     |  8 --------
 include/asm-generic/hugetlb.h      | 11 +++++++++++
 10 files changed, 26 insertions(+), 62 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 7d26f6c4f0f5..537660891f9f 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -27,15 +27,6 @@
 
 #include <asm/hugetlb-3level.h>
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3fcf14663dfa..4af1a800a900 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -25,16 +25,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return READ_ONCE(*ptep);
 }
 
-
-
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 74d2a5540aaf..afe9fa4d969b 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -3,9 +3,8 @@
 #define _ASM_IA64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -70,4 +69,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_IA64_HUGETLB_H */
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 982bc0685330..53764050243e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -10,8 +10,6 @@
 #define __ASM_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -38,15 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr,
-					  unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -114,4 +103,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* __ASM_HUGETLB_H */
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 58e0f4620426..28c23b68d38d 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -3,8 +3,6 @@
 #define _ASM_PARISC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
@@ -32,14 +30,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
@@ -71,4 +61,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_PARISC64_HUGETLB_H */
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 3225eb6402cc..a7d5c739df9b 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -4,7 +4,6 @@
 
 #ifdef CONFIG_HUGETLB_PAGE
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 extern struct kmem_cache *hugepte_cache;
 
@@ -113,6 +112,7 @@ static inline void flush_hugetlb_page(struct vm_area_struct *vma,
 void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
 #endif
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -179,6 +179,8 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #else /* ! CONFIG_HUGETLB_PAGE */
 static inline void flush_hugetlb_page(struct vm_area_struct *vma,
 				      unsigned long vmaddr)
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 735939c0f513..f6a51b609409 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -4,8 +4,6 @@
 
 #include <asm/cacheflush.h>
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -27,14 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -85,4 +75,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 	clear_bit(PG_dcache_clean, &page->flags);
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SH_HUGETLB_H */
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 300557c66698..59d89b52ccb7 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
 #define _ASM_SPARC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #ifdef CONFIG_HUGETLB_PAGE
 struct pud_huge_patch_entry {
@@ -84,8 +83,11 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SPARC64_HUGETLB_H */
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 5ed826da5e07..398da3b3414c 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,14 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 3da7cff52360..c697ca9dda18 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -40,4 +40,15 @@ static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
+		unsigned long addr, unsigned long end,
+		unsigned long floor, unsigned long ceiling)
+{
+	free_pgd_range(tlb, addr, end, floor, ceiling);
+}
+
+
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:46 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v5 03/11] hugetlb: Introduce generic version of set_huge_pte_at
Date: Tue, 31 Jul 2018 06:01:47 +0000
Lines: 181
Approved: news@gmane.org
Message-ID: <20180731060155.16915-4-alex@ghiti.fr>
References: <20180731060155.16915-1-alex@ghiti.fr>
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        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2834703>

arm, ia64, mips, powerpc, sh, x86 architectures use the
same version of set_huge_pte_at, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 6 ------
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 6 ------
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 +++++++-
 10 files changed, 10 insertions(+), 37 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index d4014fbe5ea3..398fb06e8207 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4af1a800a900..874661a1dff1 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -60,6 +60,7 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 				struct page *page, int writable);
 #define arch_make_huge_pte arch_make_huge_pte
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 			    pte_t *ptep, pte_t pte);
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index afe9fa4d969b..a235d6f60fb3 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 53764050243e..8ea439041d5d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,12 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 28c23b68d38d..77c8adbac7c3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -4,6 +4,7 @@
 
 #include <asm/page.h>
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index a7d5c739df9b..0794b53439d4 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,12 +132,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index f6a51b609409..bc552e37c1c9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 59d89b52ccb7..16b0c53ea6c9 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -12,6 +12,7 @@ struct pud_huge_patch_entry {
 extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 #endif
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 398da3b3414c..8db9a761964d 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,12 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index c697ca9dda18..ee010b756246 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -47,8 +47,14 @@ static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
 {
 	free_pgd_range(tlb, addr, end, floor, ceiling);
 }
+#endif
 
-
+#ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
+static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		pte_t *ptep, pte_t pte)
+{
+	set_pte_at(mm, addr, ptep, pte);
+}
 #endif
 
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:47 2018
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X-Mozilla-Keys:                                                                                 
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v5 04/11] hugetlb: Introduce generic version of huge_ptep_get_and_clear
Date: Tue, 31 Jul 2018 06:01:48 +0000
Lines: 168
Approved: news@gmane.org
Message-ID: <20180731060155.16915-5-alex@ghiti.fr>
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        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2834705>

arm, ia64, sh, x86 architectures use the
same version of huge_ptep_get_and_clear, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 13 insertions(+), 24 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 398fb06e8207..ad36e84b819a 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -49,12 +49,6 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	ptep_set_wrprotect(mm, addr, ptep);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 874661a1dff1..6ae0bcafe162 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -66,6 +66,7 @@ extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index a235d6f60fb3..6719c74da0de 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 8ea439041d5d..0959cc5a41fa 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,6 +36,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 77c8adbac7c3..6e281e1bb336 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -8,6 +8,7 @@
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 0794b53439d4..970101cf9c82 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,6 +132,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index bc552e37c1c9..08ee6c00b5e9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 16b0c53ea6c9..944e3a4bfaff 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -16,6 +16,7 @@ extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 8db9a761964d..e9e7fef867ad 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,12 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ee010b756246..0f6f151780dd 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -57,4 +57,12 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+		unsigned long addr, pte_t *ptep)
+{
+	return ptep_get_and_clear(mm, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:47 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v5 05/11] hugetlb: Introduce generic version of huge_ptep_clear_flush
Date: Tue, 31 Jul 2018 06:01:49 +0000
Lines: 158
Approved: news@gmane.org
Message-ID: <20180731060155.16915-6-alex@ghiti.fr>
References: <20180731060155.16915-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
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Xref: news.gmane.org gmane.linux.kernel:2834706 gmane.linux.kernel.mm:200887 gmane.linux.ports.arm.kernel:666840 gmane.linux.ports.ia64:29008 gmane.linux.ports.mips.general:65780 gmane.linux.ports.parisc:28845 gmane.linux.ports.ppc64.devel:160654 gmane.linux.ports.sh.devel:57292 gmane.linux.ports.sparc:28151 gmane.linux.kernel.cross-arch:45529
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2834706>

arm, x86 architectures use the same version of
huge_ptep_clear_flush, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 1 +
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 1 +
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index ad36e84b819a..b897541520ef 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 6ae0bcafe162..4c8dd488554d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -71,6 +71,7 @@ extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
 #define __HAVE_ARCH_HUGE_PTE_CLEAR
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 6719c74da0de..41b5f6adeee4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,6 +20,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 0959cc5a41fa..7df1f116a3cc 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -48,6 +48,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 	return pte;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 6e281e1bb336..9afff26747a1 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -32,6 +32,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 970101cf9c82..0b02856aa85b 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -143,6 +143,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 #endif
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 08ee6c00b5e9..9abf9c86b769 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,6 +25,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 944e3a4bfaff..651a9593fcee 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index e9e7fef867ad..fd59673e7a0a 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,12 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline int huge_pte_none(pte_t pte)
 {
 	return pte_none(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 0f6f151780dd..ffa63fd8388d 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -65,4 +65,12 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
+static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
+		unsigned long addr, pte_t *ptep)
+{
+	ptep_clear_flush(vma, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:47 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v5 06/11] hugetlb: Introduce generic version of huge_pte_none
Date: Tue, 31 Jul 2018 06:01:50 +0000
Lines: 179
Approved: news@gmane.org
Message-ID: <20180731060155.16915-7-alex@ghiti.fr>
References: <20180731060155.16915-1-alex@ghiti.fr>
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To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2834707>

arm, arm64, ia64, parisc, powerpc, sh, sparc, x86 architectures
use the same version of huge_pte_none, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb.h     | 5 -----
 arch/arm64/include/asm/hugetlb.h   | 5 -----
 arch/ia64/include/asm/hugetlb.h    | 5 -----
 arch/mips/include/asm/hugetlb.h    | 1 +
 arch/parisc/include/asm/hugetlb.h  | 5 -----
 arch/powerpc/include/asm/hugetlb.h | 5 -----
 arch/sh/include/asm/hugetlb.h      | 5 -----
 arch/sparc/include/asm/hugetlb.h   | 5 -----
 arch/x86/include/asm/hugetlb.h     | 5 -----
 include/asm-generic/hugetlb.h      | 7 +++++++
 10 files changed, 8 insertions(+), 40 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 537660891f9f..c821b550d6a4 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -44,11 +44,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4c8dd488554d..49247c6f94db 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 41b5f6adeee4..bf573500b3c4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 7df1f116a3cc..1c9c4531376c 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -55,6 +55,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_tlb_page(vma, addr & huge_page_mask(hstate_vma(vma)));
 }
 
+#define __HAVE_ARCH_HUGE_PTE_NONE
 static inline int huge_pte_none(pte_t pte)
 {
 	unsigned long val = pte_val(pte) & ~_PAGE_GLOBAL;
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 9afff26747a1..c09d8c74553c 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 0b02856aa85b..3562d46585ba 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 9abf9c86b769..a9f8266f33cf 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 651a9593fcee..11115bbd712e 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index fd59673e7a0a..42d872054791 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,11 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ffa63fd8388d..2fc3d68424e9 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -73,4 +73,11 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTE_NONE
+static inline int huge_pte_none(pte_t pte)
+{
+	return pte_none(pte);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:47 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v5 07/11] hugetlb: Introduce generic version of huge_pte_wrprotect
Date: Tue, 31 Jul 2018 06:01:51 +0000
Lines: 183
Approved: news@gmane.org
Message-ID: <20180731060155.16915-8-alex@ghiti.fr>
References: <20180731060155.16915-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel:2834708 gmane.linux.kernel.mm:200889 gmane.linux.ports.arm.kernel:666842 gmane.linux.ports.ia64:29010 gmane.linux.ports.mips.general:65782 gmane.linux.ports.parisc:28847 gmane.linux.ports.ppc64.devel:160656 gmane.linux.ports.sh.devel:57294 gmane.linux.ports.sparc:28153 gmane.linux.kernel.cross-arch:45531
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2834708>

arm, arm64, ia64, mips, parisc, powerpc, sh, sparc, x86
architectures use the same version of huge_pte_wrprotect, so move
this generic implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb.h     | 5 -----
 arch/arm64/include/asm/hugetlb.h   | 5 -----
 arch/ia64/include/asm/hugetlb.h    | 5 -----
 arch/mips/include/asm/hugetlb.h    | 5 -----
 arch/parisc/include/asm/hugetlb.h  | 5 -----
 arch/powerpc/include/asm/hugetlb.h | 5 -----
 arch/sh/include/asm/hugetlb.h      | 5 -----
 arch/sparc/include/asm/hugetlb.h   | 5 -----
 arch/x86/include/asm/hugetlb.h     | 5 -----
 include/asm-generic/hugetlb.h      | 7 +++++++
 10 files changed, 7 insertions(+), 45 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index c821b550d6a4..9ca14227eeb7 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -44,11 +44,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 49247c6f94db..1fd64ebf0cd7 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index bf573500b3c4..82fe3d7a38d9 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 1c9c4531376c..b3d6bb53ee6e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -62,11 +62,6 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index c09d8c74553c..5a102d7251e4 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 3562d46585ba..7123599089c6 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index a9f8266f33cf..54f65094efe6 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 11115bbd712e..f661362376e0 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 42d872054791..3cd3a2c9840e 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,11 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 2fc3d68424e9..cd9697672b79 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -80,4 +80,11 @@ static inline int huge_pte_none(pte_t pte)
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTE_WRPROTECT
+static inline pte_t huge_pte_wrprotect(pte_t pte)
+{
+	return pte_wrprotect(pte);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:47 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v5 08/11] hugetlb: Introduce generic version of prepare_hugepage_range
Date: Tue, 31 Jul 2018 06:01:52 +0000
Lines: 218
Approved: news@gmane.org
Message-ID: <20180731060155.16915-9-alex@ghiti.fr>
References: <20180731060155.16915-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
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Xref: news.gmane.org gmane.linux.kernel:2834709 gmane.linux.kernel.mm:200890 gmane.linux.ports.arm.kernel:666843 gmane.linux.ports.ia64:29011 gmane.linux.ports.mips.general:65783 gmane.linux.ports.parisc:28848 gmane.linux.ports.ppc64.devel:160657 gmane.linux.ports.sh.devel:57295 gmane.linux.ports.sparc:28154 gmane.linux.kernel.cross-arch:45532
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2834709>

arm, arm64, powerpc, sparc, x86 architectures use the same version of
prepare_hugepage_range, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb.h     | 11 -----------
 arch/arm64/include/asm/hugetlb.h   | 11 -----------
 arch/ia64/include/asm/hugetlb.h    |  1 +
 arch/mips/include/asm/hugetlb.h    |  1 +
 arch/parisc/include/asm/hugetlb.h  |  1 +
 arch/powerpc/include/asm/hugetlb.h | 15 ---------------
 arch/sh/include/asm/hugetlb.h      |  1 +
 arch/sparc/include/asm/hugetlb.h   | 16 ----------------
 arch/x86/include/asm/hugetlb.h     | 15 ---------------
 include/asm-generic/hugetlb.h      | 15 +++++++++++++++
 10 files changed, 19 insertions(+), 68 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 9ca14227eeb7..3fcef21ff2c2 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -33,17 +33,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int prepare_hugepage_range(struct file *file,
-					 unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 1fd64ebf0cd7..3e7f6e69b28d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -31,17 +31,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int prepare_hugepage_range(struct file *file,
-					 unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 82fe3d7a38d9..cbe296271030 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -9,6 +9,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len);
 
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index b3d6bb53ee6e..6ff2531cfb1d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -18,6 +18,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 					 unsigned long addr,
 					 unsigned long len)
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 5a102d7251e4..fb7e0fd858a3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -22,6 +22,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
  * If the arch doesn't supply something else, assume that hugepage
  * size aligned regions are ok without further preparation.
  */
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len)
 {
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 7123599089c6..69c14ecac133 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -117,21 +117,6 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 54f65094efe6..f1bbd255ee43 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -15,6 +15,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
  * If the arch doesn't supply something else, assume that hugepage
  * size aligned regions are ok without further preparation.
  */
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index f661362376e0..2101ea217f33 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -26,22 +26,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 3cd3a2c9840e..59c056adb3c9 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,21 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index cd9697672b79..6c0c8b0c71e0 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -87,4 +87,19 @@ static inline pte_t huge_pte_wrprotect(pte_t pte)
 }
 #endif
 
+#ifndef __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
+static inline int prepare_hugepage_range(struct file *file,
+		unsigned long addr, unsigned long len)
+{
+	struct hstate *h = hstate_file(file);
+
+	if (len & ~huge_page_mask(h))
+		return -EINVAL;
+	if (addr & ~huge_page_mask(h))
+		return -EINVAL;
+
+	return 0;
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:47 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v5 09/11] hugetlb: Introduce generic version of huge_ptep_set_wrprotect
Date: Tue, 31 Jul 2018 06:01:53 +0000
Lines: 217
Approved: news@gmane.org
Message-ID: <20180731060155.16915-10-alex@ghiti.fr>
References: <20180731060155.16915-1-alex@ghiti.fr>
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NNTP-Posting-Date: Tue, 31 Jul 2018 06:11:16 +0000 (UTC)
Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel:2834710 gmane.linux.kernel.mm:200891 gmane.linux.ports.arm.kernel:666844 gmane.linux.ports.ia64:29012 gmane.linux.ports.mips.general:65784 gmane.linux.ports.parisc:28849 gmane.linux.ports.ppc64.devel:160658 gmane.linux.ports.sh.devel:57296 gmane.linux.ports.sparc:28155 gmane.linux.kernel.cross-arch:45533
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2834710>

arm, ia64, mips, sh, x86 architectures use the same version
of huge_ptep_set_wrprotect, so move this generic implementation into
asm-generic/hugetlb.h.
Note: powerpc uses twice for book3s/32 and nohash/32 the same version as
the above architectures, but the modification was not straightforward
and hence has not been done.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h        | 6 ------
 arch/arm64/include/asm/hugetlb.h             | 1 +
 arch/ia64/include/asm/hugetlb.h              | 6 ------
 arch/mips/include/asm/hugetlb.h              | 6 ------
 arch/parisc/include/asm/hugetlb.h            | 1 +
 arch/powerpc/include/asm/book3s/32/pgtable.h | 2 ++
 arch/powerpc/include/asm/book3s/64/pgtable.h | 1 +
 arch/powerpc/include/asm/nohash/32/pgtable.h | 2 ++
 arch/powerpc/include/asm/nohash/64/pgtable.h | 1 +
 arch/sh/include/asm/hugetlb.h                | 6 ------
 arch/sparc/include/asm/hugetlb.h             | 1 +
 arch/x86/include/asm/hugetlb.h               | 6 ------
 include/asm-generic/hugetlb.h                | 8 ++++++++
 13 files changed, 17 insertions(+), 30 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index b897541520ef..8247cd6a2ac6 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3e7f6e69b28d..f4f69ae5466e 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -48,6 +48,7 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index cbe296271030..49d1f7949f3a 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 6ff2531cfb1d..3dcf5debf8c4 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -63,12 +63,6 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr,
 					     pte_t *ptep, pte_t pte,
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index fb7e0fd858a3..9c3950ca2974 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -39,6 +39,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
index 02f5acd7ccc4..d2cd1d0226e9 100644
--- a/arch/powerpc/include/asm/book3s/32/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
@@ -228,6 +228,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 {
 	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
 }
+
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 42aafba7a308..7d957f7c47cd 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -451,6 +451,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 		pte_update(mm, addr, ptep, 0, _PAGE_PRIVILEGED, 0);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index 7c46a98cc7f4..f39e200d9591 100644
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -249,6 +249,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 {
 	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
 }
+
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
index dd0c7236208f..69fbf7e9b4db 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
@@ -238,6 +238,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 	pte_update(mm, addr, ptep, _PAGE_RW, 0, 0);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index f1bbd255ee43..8df4004977b9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,12 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 2101ea217f33..c41754a113f3 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -32,6 +32,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 59c056adb3c9..a3f781f7a264 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,12 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 6c0c8b0c71e0..9b9039845278 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -102,4 +102,12 @@ static inline int prepare_hugepage_range(struct file *file,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
+static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
+		unsigned long addr, pte_t *ptep)
+{
+	ptep_set_wrprotect(mm, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:47 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v5 10/11] hugetlb: Introduce generic version of huge_ptep_set_access_flags
Date: Tue, 31 Jul 2018 06:01:54 +0000
Lines: 171
Approved: news@gmane.org
Message-ID: <20180731060155.16915-11-alex@ghiti.fr>
References: <20180731060155.16915-1-alex@ghiti.fr>
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To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2834711>

arm, ia64, sh, x86 architectures use the same version
of huge_ptep_set_access_flags, so move this generic implementation
into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 7 -------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 7 -------
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 7 -------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 7 -------
 include/asm-generic/hugetlb.h         | 9 +++++++++
 10 files changed, 14 insertions(+), 28 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 8247cd6a2ac6..54e4b097b1f5 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,11 +37,4 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 #endif /* _ASM_ARM_HUGETLB_3LEVEL_H */
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index f4f69ae5466e..80887abcef7f 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 			    pte_t *ptep, pte_t pte);
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 49d1f7949f3a..e9b42750fdf5 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,13 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 3dcf5debf8c4..120adc3b2ffd 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -63,6 +63,7 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr,
 					     pte_t *ptep, pte_t pte,
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 9c3950ca2974..165b4e5a6f32 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -43,6 +43,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty);
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 69c14ecac133..658bf7136a3c 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -137,6 +137,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 8df4004977b9..c87195ae0cfa 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,13 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index c41754a113f3..028a1465fbe7 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -40,6 +40,7 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index a3f781f7a264..574d42eb081e 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,13 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9b9039845278..f3c99a03ee83 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -110,4 +110,13 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
+static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+		unsigned long addr, pte_t *ptep,
+		pte_t pte, int dirty)
+{
+	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:47 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v5 11/11] hugetlb: Introduce generic version of huge_ptep_get
Date: Tue, 31 Jul 2018 06:01:55 +0000
Lines: 175
Approved: news@gmane.org
Message-ID: <20180731060155.16915-12-alex@ghiti.fr>
References: <20180731060155.16915-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
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        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
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        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
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        linux-arch@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2834713>

ia64, mips, parisc, powerpc, sh, sparc, x86 architectures use the
same version of huge_ptep_get, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 1 +
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 5 -----
 arch/mips/include/asm/hugetlb.h       | 5 -----
 arch/parisc/include/asm/hugetlb.h     | 5 -----
 arch/powerpc/include/asm/hugetlb.h    | 5 -----
 arch/sh/include/asm/hugetlb.h         | 5 -----
 arch/sparc/include/asm/hugetlb.h      | 5 -----
 arch/x86/include/asm/hugetlb.h        | 5 -----
 include/asm-generic/hugetlb.h         | 7 +++++++
 10 files changed, 9 insertions(+), 35 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 54e4b097b1f5..0d9f3918fa7e 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -29,6 +29,7 @@
  * ptes.
  * (The valid bit is automatically cleared by set_pte_at for PROT_NONE ptes).
  */
+#define __HAVE_ARCH_HUGE_PTEP_GET
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	pte_t retval = *ptep;
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 80887abcef7f..fb6609875455 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -20,6 +20,7 @@
 
 #include <asm/page.h>
 
+#define __HAVE_ARCH_HUGE_PTEP_GET
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return READ_ONCE(*ptep);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index e9b42750fdf5..36cc0396b214 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,11 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 120adc3b2ffd..425bb6fc3bda 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -82,11 +82,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 	return changed;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 165b4e5a6f32..7cb595dcb7d7 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty);
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 658bf7136a3c..33a2d9e3ea9e 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -142,11 +142,6 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index c87195ae0cfa..6f025fe18146 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,11 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 028a1465fbe7..3963f80d1cb3 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -53,11 +53,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 	return changed;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 574d42eb081e..7469d321f072 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,11 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index f3c99a03ee83..71d7b77eea50 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -119,4 +119,11 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET
+static inline pte_t huge_ptep_get(pte_t *ptep)
+{
+	return *ptep;
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



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Subject: Re: [PATCH v5 00/11] hugetlb: Factorize hugetlb architecture
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On Tue, Jul 31, 2018 at 06:01:44AM +0000, Alexandre Ghiti wrote:
> Alexandre Ghiti (11):
>   hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
>   hugetlb: Introduce generic version of hugetlb_free_pgd_range
>   hugetlb: Introduce generic version of set_huge_pte_at
>   hugetlb: Introduce generic version of huge_ptep_get_and_clear
>   hugetlb: Introduce generic version of huge_ptep_clear_flush
>   hugetlb: Introduce generic version of huge_pte_none
>   hugetlb: Introduce generic version of huge_pte_wrprotect
>   hugetlb: Introduce generic version of prepare_hugepage_range
>   hugetlb: Introduce generic version of huge_ptep_set_wrprotect
>   hugetlb: Introduce generic version of huge_ptep_set_access_flags
>   hugetlb: Introduce generic version of huge_ptep_get
[...]
>  arch/arm64/include/asm/hugetlb.h             | 39 +++---------

For the arm64 bits in this series:

Acked-by: Catalin Marinas <catalin.marinas@arm.com>


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Subject: Re: [PATCH v5 09/11] hugetlb: Introduce generic version of
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Alexandre Ghiti <alex@ghiti.fr> writes:

> arm, ia64, mips, sh, x86 architectures use the same version
> of huge_ptep_set_wrprotect, so move this generic implementation into
> asm-generic/hugetlb.h.
> Note: powerpc uses twice for book3s/32 and nohash/32 the same version as
> the above architectures, but the modification was not straightforward
> and hence has not been done.

Do you remember what the problem was there?

It looks like you should just be able to drop them like the others. I
assume there's some header spaghetti that causes problems though?

cheers


> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
> ---
>  arch/arm/include/asm/hugetlb-3level.h        | 6 ------
>  arch/arm64/include/asm/hugetlb.h             | 1 +
>  arch/ia64/include/asm/hugetlb.h              | 6 ------
>  arch/mips/include/asm/hugetlb.h              | 6 ------
>  arch/parisc/include/asm/hugetlb.h            | 1 +
>  arch/powerpc/include/asm/book3s/32/pgtable.h | 2 ++
>  arch/powerpc/include/asm/book3s/64/pgtable.h | 1 +
>  arch/powerpc/include/asm/nohash/32/pgtable.h | 2 ++
>  arch/powerpc/include/asm/nohash/64/pgtable.h | 1 +
>  arch/sh/include/asm/hugetlb.h                | 6 ------
>  arch/sparc/include/asm/hugetlb.h             | 1 +
>  arch/x86/include/asm/hugetlb.h               | 6 ------
>  include/asm-generic/hugetlb.h                | 8 ++++++++
>  13 files changed, 17 insertions(+), 30 deletions(-)
>
> diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
> index b897541520ef..8247cd6a2ac6 100644
> --- a/arch/arm/include/asm/hugetlb-3level.h
> +++ b/arch/arm/include/asm/hugetlb-3level.h
> @@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
>  	return retval;
>  }
>  
> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> -					   unsigned long addr, pte_t *ptep)
> -{
> -	ptep_set_wrprotect(mm, addr, ptep);
> -}
> -
>  static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr, pte_t *ptep,
>  					     pte_t pte, int dirty)
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 3e7f6e69b28d..f4f69ae5466e 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -48,6 +48,7 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
>  extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>  				     unsigned long addr, pte_t *ptep);
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  				    unsigned long addr, pte_t *ptep);
>  #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index cbe296271030..49d1f7949f3a 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -27,12 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> -					   unsigned long addr, pte_t *ptep)
> -{
> -	ptep_set_wrprotect(mm, addr, ptep);
> -}
> -
>  static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr, pte_t *ptep,
>  					     pte_t pte, int dirty)
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 6ff2531cfb1d..3dcf5debf8c4 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -63,12 +63,6 @@ static inline int huge_pte_none(pte_t pte)
>  	return !val || (val == (unsigned long)invalid_pte_table);
>  }
>  
> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> -					   unsigned long addr, pte_t *ptep)
> -{
> -	ptep_set_wrprotect(mm, addr, ptep);
> -}
> -
>  static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr,
>  					     pte_t *ptep, pte_t pte,
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index fb7e0fd858a3..9c3950ca2974 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -39,6 +39,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep);
>  
> diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
> index 02f5acd7ccc4..d2cd1d0226e9 100644
> --- a/arch/powerpc/include/asm/book3s/32/pgtable.h
> +++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
> @@ -228,6 +228,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
>  {
>  	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
>  }
> +
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
> index 42aafba7a308..7d957f7c47cd 100644
> --- a/arch/powerpc/include/asm/book3s/64/pgtable.h
> +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
> @@ -451,6 +451,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
>  		pte_update(mm, addr, ptep, 0, _PAGE_PRIVILEGED, 0);
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
> index 7c46a98cc7f4..f39e200d9591 100644
> --- a/arch/powerpc/include/asm/nohash/32/pgtable.h
> +++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
> @@ -249,6 +249,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
>  {
>  	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
>  }
> +
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
> index dd0c7236208f..69fbf7e9b4db 100644
> --- a/arch/powerpc/include/asm/nohash/64/pgtable.h
> +++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
> @@ -238,6 +238,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
>  	pte_update(mm, addr, ptep, _PAGE_RW, 0, 0);
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index f1bbd255ee43..8df4004977b9 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -32,12 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> -					   unsigned long addr, pte_t *ptep)
> -{
> -	ptep_set_wrprotect(mm, addr, ptep);
> -}
> -
>  static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr, pte_t *ptep,
>  					     pte_t pte, int dirty)
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 2101ea217f33..c41754a113f3 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -32,6 +32,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>  {
>  }
>  
> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>  static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>  					   unsigned long addr, pte_t *ptep)
>  {
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index 59c056adb3c9..a3f781f7a264 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -13,12 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>  	return 0;
>  }
>  
> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> -					   unsigned long addr, pte_t *ptep)
> -{
> -	ptep_set_wrprotect(mm, addr, ptep);
> -}
> -
>  static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  					     unsigned long addr, pte_t *ptep,
>  					     pte_t pte, int dirty)
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index 6c0c8b0c71e0..9b9039845278 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -102,4 +102,12 @@ static inline int prepare_hugepage_range(struct file *file,
>  }
>  #endif
>  
> +#ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
> +static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> +		unsigned long addr, pte_t *ptep)
> +{
> +	ptep_set_wrprotect(mm, addr, ptep);
> +}
> +#endif
> +
>  #endif /* _ASM_GENERIC_HUGETLB_H */
> -- 
> 2.16.2


From - Thu Nov 08 21:41:48 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
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Subject: Re: [PATCH v5 09/11] hugetlb: Introduce generic version of
 huge_ptep_set_wrprotect
Date: Tue, 31 Jul 2018 13:17:03 +0200
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On 07/31/2018 12:06 PM, Michael Ellerman wrote:
> Alexandre Ghiti <alex@ghiti.fr> writes:
>
>> arm, ia64, mips, sh, x86 architectures use the same version
>> of huge_ptep_set_wrprotect, so move this generic implementation into
>> asm-generic/hugetlb.h.
>> Note: powerpc uses twice for book3s/32 and nohash/32 the same version as
>> the above architectures, but the modification was not straightforward
>> and hence has not been done.
> Do you remember what the problem was there?
>
> It looks like you should just be able to drop them like the others. I
> assume there's some header spaghetti that causes problems though?

Yes, the header spaghetti frightened me a bit. Maybe I should have tried 
harder: I can try to remove them and find the right defconfigs to 
compile both to begin with. And to guarantee the functionality is 
preserved, can I use the testsuite of libhugetlbfs with qemu ?

Alex

>
> cheers
>
>
>> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
>> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
>> ---
>>   arch/arm/include/asm/hugetlb-3level.h        | 6 ------
>>   arch/arm64/include/asm/hugetlb.h             | 1 +
>>   arch/ia64/include/asm/hugetlb.h              | 6 ------
>>   arch/mips/include/asm/hugetlb.h              | 6 ------
>>   arch/parisc/include/asm/hugetlb.h            | 1 +
>>   arch/powerpc/include/asm/book3s/32/pgtable.h | 2 ++
>>   arch/powerpc/include/asm/book3s/64/pgtable.h | 1 +
>>   arch/powerpc/include/asm/nohash/32/pgtable.h | 2 ++
>>   arch/powerpc/include/asm/nohash/64/pgtable.h | 1 +
>>   arch/sh/include/asm/hugetlb.h                | 6 ------
>>   arch/sparc/include/asm/hugetlb.h             | 1 +
>>   arch/x86/include/asm/hugetlb.h               | 6 ------
>>   include/asm-generic/hugetlb.h                | 8 ++++++++
>>   13 files changed, 17 insertions(+), 30 deletions(-)
>>
>> diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
>> index b897541520ef..8247cd6a2ac6 100644
>> --- a/arch/arm/include/asm/hugetlb-3level.h
>> +++ b/arch/arm/include/asm/hugetlb-3level.h
>> @@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
>>   	return retval;
>>   }
>>   
>> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>> -					   unsigned long addr, pte_t *ptep)
>> -{
>> -	ptep_set_wrprotect(mm, addr, ptep);
>> -}
>> -
>>   static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>>   					     unsigned long addr, pte_t *ptep,
>>   					     pte_t pte, int dirty)
>> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
>> index 3e7f6e69b28d..f4f69ae5466e 100644
>> --- a/arch/arm64/include/asm/hugetlb.h
>> +++ b/arch/arm64/include/asm/hugetlb.h
>> @@ -48,6 +48,7 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>>   #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
>>   extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>>   				     unsigned long addr, pte_t *ptep);
>> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>   extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>   				    unsigned long addr, pte_t *ptep);
>>   #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
>> index cbe296271030..49d1f7949f3a 100644
>> --- a/arch/ia64/include/asm/hugetlb.h
>> +++ b/arch/ia64/include/asm/hugetlb.h
>> @@ -27,12 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>>   {
>>   }
>>   
>> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>> -					   unsigned long addr, pte_t *ptep)
>> -{
>> -	ptep_set_wrprotect(mm, addr, ptep);
>> -}
>> -
>>   static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>>   					     unsigned long addr, pte_t *ptep,
>>   					     pte_t pte, int dirty)
>> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
>> index 6ff2531cfb1d..3dcf5debf8c4 100644
>> --- a/arch/mips/include/asm/hugetlb.h
>> +++ b/arch/mips/include/asm/hugetlb.h
>> @@ -63,12 +63,6 @@ static inline int huge_pte_none(pte_t pte)
>>   	return !val || (val == (unsigned long)invalid_pte_table);
>>   }
>>   
>> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>> -					   unsigned long addr, pte_t *ptep)
>> -{
>> -	ptep_set_wrprotect(mm, addr, ptep);
>> -}
>> -
>>   static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>>   					     unsigned long addr,
>>   					     pte_t *ptep, pte_t pte,
>> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
>> index fb7e0fd858a3..9c3950ca2974 100644
>> --- a/arch/parisc/include/asm/hugetlb.h
>> +++ b/arch/parisc/include/asm/hugetlb.h
>> @@ -39,6 +39,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>>   {
>>   }
>>   
>> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>   void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>   					   unsigned long addr, pte_t *ptep);
>>   
>> diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
>> index 02f5acd7ccc4..d2cd1d0226e9 100644
>> --- a/arch/powerpc/include/asm/book3s/32/pgtable.h
>> +++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
>> @@ -228,6 +228,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
>>   {
>>   	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
>>   }
>> +
>> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>   static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>   					   unsigned long addr, pte_t *ptep)
>>   {
>> diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
>> index 42aafba7a308..7d957f7c47cd 100644
>> --- a/arch/powerpc/include/asm/book3s/64/pgtable.h
>> +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
>> @@ -451,6 +451,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
>>   		pte_update(mm, addr, ptep, 0, _PAGE_PRIVILEGED, 0);
>>   }
>>   
>> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>   static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>   					   unsigned long addr, pte_t *ptep)
>>   {
>> diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
>> index 7c46a98cc7f4..f39e200d9591 100644
>> --- a/arch/powerpc/include/asm/nohash/32/pgtable.h
>> +++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
>> @@ -249,6 +249,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
>>   {
>>   	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
>>   }
>> +
>> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>   static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>   					   unsigned long addr, pte_t *ptep)
>>   {
>> diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
>> index dd0c7236208f..69fbf7e9b4db 100644
>> --- a/arch/powerpc/include/asm/nohash/64/pgtable.h
>> +++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
>> @@ -238,6 +238,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
>>   	pte_update(mm, addr, ptep, _PAGE_RW, 0, 0);
>>   }
>>   
>> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>   static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>   					   unsigned long addr, pte_t *ptep)
>>   {
>> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
>> index f1bbd255ee43..8df4004977b9 100644
>> --- a/arch/sh/include/asm/hugetlb.h
>> +++ b/arch/sh/include/asm/hugetlb.h
>> @@ -32,12 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>>   {
>>   }
>>   
>> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>> -					   unsigned long addr, pte_t *ptep)
>> -{
>> -	ptep_set_wrprotect(mm, addr, ptep);
>> -}
>> -
>>   static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>>   					     unsigned long addr, pte_t *ptep,
>>   					     pte_t pte, int dirty)
>> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
>> index 2101ea217f33..c41754a113f3 100644
>> --- a/arch/sparc/include/asm/hugetlb.h
>> +++ b/arch/sparc/include/asm/hugetlb.h
>> @@ -32,6 +32,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
>>   {
>>   }
>>   
>> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>   static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>   					   unsigned long addr, pte_t *ptep)
>>   {
>> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
>> index 59c056adb3c9..a3f781f7a264 100644
>> --- a/arch/x86/include/asm/hugetlb.h
>> +++ b/arch/x86/include/asm/hugetlb.h
>> @@ -13,12 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
>>   	return 0;
>>   }
>>   
>> -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>> -					   unsigned long addr, pte_t *ptep)
>> -{
>> -	ptep_set_wrprotect(mm, addr, ptep);
>> -}
>> -
>>   static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>>   					     unsigned long addr, pte_t *ptep,
>>   					     pte_t pte, int dirty)
>> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
>> index 6c0c8b0c71e0..9b9039845278 100644
>> --- a/include/asm-generic/hugetlb.h
>> +++ b/include/asm-generic/hugetlb.h
>> @@ -102,4 +102,12 @@ static inline int prepare_hugepage_range(struct file *file,
>>   }
>>   #endif
>>   
>> +#ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>> +static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>> +		unsigned long addr, pte_t *ptep)
>> +{
>> +	ptep_set_wrprotect(mm, addr, ptep);
>> +}
>> +#endif
>> +
>>   #endif /* _ASM_GENERIC_HUGETLB_H */
>> -- 
>> 2.16.2



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Subject: Re: [PATCH v5 00/11] hugetlb: Factorize hugetlb architecture
 primitives
Date: Tue, 31 Jul 2018 16:06:40 -0400
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On Tue, 31 Jul 2018 06:01:44 +0000
Alexandre Ghiti <alex@ghiti.fr> wrote:

> [CC linux-mm for inclusion in -mm tree] 
> 
> In order to reduce copy/paste of functions across architectures and then
> make riscv hugetlb port (and future ports) simpler and smaller, this
> patchset intends to factorize the numerous hugetlb primitives that are
> defined across all the architectures.

[...]

>  15 files changed, 139 insertions(+), 382 deletions(-)

I imagine you're mostly interested in non-x86 review at this point, but
as this series is looking amazing:

Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>


From - Thu Nov 08 21:41:48 2018
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Subject: Re: [PATCH v5 00/11] hugetlb: Factorize hugetlb architecture
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On 07/31/2018 10:06 PM, Luiz Capitulino wrote:
> On Tue, 31 Jul 2018 06:01:44 +0000
> Alexandre Ghiti <alex@ghiti.fr> wrote:
>
>> [CC linux-mm for inclusion in -mm tree]
>>
>> In order to reduce copy/paste of functions across architectures and then
>> make riscv hugetlb port (and future ports) simpler and smaller, this
>> patchset intends to factorize the numerous hugetlb primitives that are
>> defined across all the architectures.
> [...]
>
>>   15 files changed, 139 insertions(+), 382 deletions(-)
> I imagine you're mostly interested in non-x86 review at this point, but
> as this series is looking amazing:
>
> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>

It's always good to have another feedback :)
Thanks for your review Luiz,

Alex


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Subject: [PATCH] parisc: prefer _THIS_IP_ and _RET_IP_ statement expressions
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2836997>

As part of the effort to reduce the code duplication between _THIS_IP_
and current_text_addr(), let's consolidate callers of
current_text_addr() to use _THIS_IP_.

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
---
 arch/parisc/kernel/unwind.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 2ef83d78eec4..a4b430f440a9 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -439,8 +439,8 @@ unsigned long return_address(unsigned int level)
 	/* initialize unwind info */
 	asm volatile ("copy %%r30, %0" : "=r"(sp));
 	memset(&r, 0, sizeof(struct pt_regs));
-	r.iaoq[0] = (unsigned long) current_text_addr();
-	r.gr[2] = (unsigned long) __builtin_return_address(0);
+	r.iaoq[0] = _THIS_IP_;
+	r.gr[2] = _RET_IP_;
 	r.gr[30] = sp;
 	unwind_frame_init(&info, current, &r);
 
-- 
2.18.0.597.ga71716f1ad-goog



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To: Nick Desaulniers <ndesaulniers@google.com>, deller@gmx.de,
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On 2018-08-01 2:22 PM, Nick Desaulniers wrote:
> As part of the effort to reduce the code duplication between _THIS_IP_
> and current_text_addr(), let's consolidate callers of
> current_text_addr() to use _THIS_IP_.
Using the generic _THIS_IP_ results in significantly longer code than 
the parisc implementation
of current_text_addr().  It also results in a local label in the text.  
This breaks the unwind data
for the function with the label in 32-bit kernels.  The implementation 
of current_text_addr()
doesn't add a label.  _THIS_IP_ should be defined using 
current_text_addr() on parisc.
>
> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
> ---
>   arch/parisc/kernel/unwind.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
> index 2ef83d78eec4..a4b430f440a9 100644
> --- a/arch/parisc/kernel/unwind.c
> +++ b/arch/parisc/kernel/unwind.c
> @@ -439,8 +439,8 @@ unsigned long return_address(unsigned int level)
>   	/* initialize unwind info */
>   	asm volatile ("copy %%r30, %0" : "=r"(sp));
>   	memset(&r, 0, sizeof(struct pt_regs));
> -	r.iaoq[0] = (unsigned long) current_text_addr();
> -	r.gr[2] = (unsigned long) __builtin_return_address(0);
> +	r.iaoq[0] = _THIS_IP_;
> +	r.gr[2] = _RET_IP_;
>   	r.gr[30] = sp;
>   	unwind_frame_init(&info, current, &r);
>   

Dave

-- 
John David Anglin  dave.anglin@bell.net



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Subject: Re: [PATCH] parisc: prefer _THIS_IP_ and _RET_IP_ statement expressions
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Dave, thanks for the quick review!

On Wed, Aug 1, 2018 at 1:10 PM John David Anglin <dave.anglin@bell.net> wrote:
>
> On 2018-08-01 2:22 PM, Nick Desaulniers wrote:
> > As part of the effort to reduce the code duplication between _THIS_IP_
> > and current_text_addr(), let's consolidate callers of
> > current_text_addr() to use _THIS_IP_.
> Using the generic _THIS_IP_ results in significantly longer code than
> the parisc implementation
> of current_text_addr().

It might be worthwhile to file a bug with your compiler vendor.  It
seems like there may be a better way to generate code for this
construct.

Also, I'm curious how hot this code is? I assume in general that the C
construct may be larger than the inline assembly, but I'm curious if
this introduces a performance regression or just makes the code
larger?  Do you have stats on the size difference and performance
differences?  What's more important to me is whether the patch is
correct...

> It also results in a local label in the text.
> This breaks the unwind data
> for the function with the label in 32-bit kernels.  The implementation
> of current_text_addr()
> doesn't add a label.

... oh, I guess I'm surprised that the label ends up in the code, vs
there just being a constant generated.  Can you send me the
disassembly?  Also, I'm curious how does having the label present in
the text break the unwinder?  (I'm not familiar with how unwinding
works beyond following frame pointers).

> _THIS_IP_ should be defined using
> current_text_addr() on parisc.

I'm trying to eliminate current_text_addr() in the kernel, as it only
has 4 call sites (3 are arch specific).  What are your thoughts on
making the current parisc current_text_addr() just a static function
(or statement expression that's local to) in
arch/parisc/kernel/unwind.c?

-- 
Thanks,
~Nick Desaulniers


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On 2018-08-01 4:52 PM, Nick Desaulniers wrote:
> Dave, thanks for the quick review!
>
> On Wed, Aug 1, 2018 at 1:10 PM John David Anglin <dave.anglin@bell.net> wrote:
>> On 2018-08-01 2:22 PM, Nick Desaulniers wrote:
>>> As part of the effort to reduce the code duplication between _THIS_IP_
>>> and current_text_addr(), let's consolidate callers of
>>> current_text_addr() to use _THIS_IP_.
>> Using the generic _THIS_IP_ results in significantly longer code than
>> the parisc implementation
>> of current_text_addr().
> It might be worthwhile to file a bug with your compiler vendor.  It
> seems like there may be a better way to generate code for this
> construct.
>
> Also, I'm curious how hot this code is? I assume in general that the C
> construct may be larger than the inline assembly, but I'm curious if
> this introduces a performance regression or just makes the code
> larger?  Do you have stats on the size difference and performance
> differences?  What's more important to me is whether the patch is
> correct...
I exaggerated the size difference.  It's two instructions versus one on 
PA 2.0.
>
>> It also results in a local label in the text.
>> This breaks the unwind data
>> for the function with the label in 32-bit kernels.  The implementation
>> of current_text_addr()
>> doesn't add a label.
> ... oh, I guess I'm surprised that the label ends up in the code, vs
> there just being a constant generated.  Can you send me the
> disassembly?  Also, I'm curious how does having the label present in
> the text break the unwinder?  (I'm not familiar with how unwinding
> works beyond following frame pointers).
The generic code results in the following assembly code:

.L2:
         ldil LR'.L2,%r25
         ldo RR'.L2(%r25),%r25

It's the LR and RR relocations that cause the label to end up in the 
final symbol table.
The linker can't throw .L2 away  as its address has been taken.

The comparable PA 2.0 code is:

         mfia %r25

I'm aware of this issue as I just changed gcc to move branch tables to 
read-only data
when generating non-PIC code because of this issue.

Helge knows more about the unwind issues than I do as it's specific to 
the linux kernel.
Userspace uses dwarf unwind info.  I believe what happens is the 
unwinder finds the label
instead of the relevant function and its unwind data.

>
>> _THIS_IP_ should be defined using
>> current_text_addr() on parisc.
> I'm trying to eliminate current_text_addr() in the kernel, as it only
> has 4 call sites (3 are arch specific).  What are your thoughts on
> making the current parisc current_text_addr() just a static function
> (or statement expression that's local to) in
> arch/parisc/kernel/unwind.c?
I understand the desire to eliminate current_text_addr().  However, as 
it stands, using _THIS_IP_
introduces text  labels at many sites in the kernel.  That's why parisc 
needs to be able to provide its
own define for _THIS_IP_.  Currently, we have in asm/processor.h:

/*
  * Default implementation of macro that returns current
  * instruction pointer ("program counter").
  */
#ifdef CONFIG_PA20
#define current_ia(x)   __asm__("mfia %0" : "=r"(x))
#else /* mfia added in pa2.0 */
#define current_ia(x)   __asm__("blr 0,%0\n\tnop" : "=r"(x))
#endif
#define current_text_addr() ({ void *pc; current_ia(pc); pc; })

Dave

-- 
John David Anglin  dave.anglin@bell.net



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On Wed, Aug 1, 2018 at 2:27 PM John David Anglin <dave.anglin@bell.net> wrote:
>
> On 2018-08-01 4:52 PM, Nick Desaulniers wrote:
> > Dave, thanks for the quick review!
> >
> > On Wed, Aug 1, 2018 at 1:10 PM John David Anglin <dave.anglin@bell.net> wrote:
> >> On 2018-08-01 2:22 PM, Nick Desaulniers wrote:
> >>> As part of the effort to reduce the code duplication between _THIS_IP_
> >>> and current_text_addr(), let's consolidate callers of
> >>> current_text_addr() to use _THIS_IP_.
> >> Using the generic _THIS_IP_ results in significantly longer code than
> >> the parisc implementation
> >> of current_text_addr().
> > It might be worthwhile to file a bug with your compiler vendor.  It
> > seems like there may be a better way to generate code for this
> > construct.
> >
> > Also, I'm curious how hot this code is? I assume in general that the C
> > construct may be larger than the inline assembly, but I'm curious if
> > this introduces a performance regression or just makes the code
> > larger?  Do you have stats on the size difference and performance
> > differences?  What's more important to me is whether the patch is
> > correct...
> I exaggerated the size difference.  It's two instructions versus one on
> PA 2.0.

Thanks for measuring.

> >
> >> It also results in a local label in the text.
> >> This breaks the unwind data
> >> for the function with the label in 32-bit kernels.  The implementation
> >> of current_text_addr()
> >> doesn't add a label.
> > ... oh, I guess I'm surprised that the label ends up in the code, vs
> > there just being a constant generated.  Can you send me the
> > disassembly?  Also, I'm curious how does having the label present in
> > the text break the unwinder?  (I'm not familiar with how unwinding
> > works beyond following frame pointers).
> The generic code results in the following assembly code:
>
> .L2:
>          ldil LR'.L2,%r25
>          ldo RR'.L2(%r25),%r25
>
> It's the LR and RR relocations that cause the label to end up in the
> final symbol table.
> The linker can't throw .L2 away  as its address has been taken.
>
> The comparable PA 2.0 code is:
>
>          mfia %r25

Thanks for the disassembly and explanation.

>
> I'm aware of this issue as I just changed gcc to move branch tables to
> read-only data
> when generating non-PIC code because of this issue.
>
> Helge knows more about the unwind issues than I do as it's specific to
> the linux kernel.
> Userspace uses dwarf unwind info.  I believe what happens is the
> unwinder finds the label
> instead of the relevant function and its unwind data.

Seems like return_address() is being used in
arch/parisc/include/asm/ftrace.h. Does v1 break tracing?  When you
found out the hard way about this requirement for labels in unwind
data, how did you reproduce (boot test that failed, ftrace failed)?
Does the same thing happen with this patch?


> >> _THIS_IP_ should be defined using
> >> current_text_addr() on parisc.
> > I'm trying to eliminate current_text_addr() in the kernel, as it only
> > has 4 call sites (3 are arch specific).  What are your thoughts on
> > making the current parisc current_text_addr() just a static function
> > (or statement expression that's local to) in
> > arch/parisc/kernel/unwind.c?
> I understand the desire to eliminate current_text_addr().  However, as
> it stands, using _THIS_IP_
> introduces text  labels at many sites in the kernel.  That's why parisc
> needs to be able to provide its
> own define for _THIS_IP_.  Currently, we have in asm/processor.h:
>
> /*
>   * Default implementation of macro that returns current
>   * instruction pointer ("program counter").
>   */
> #ifdef CONFIG_PA20
> #define current_ia(x)   __asm__("mfia %0" : "=r"(x))
> #else /* mfia added in pa2.0 */
> #define current_ia(x)   __asm__("blr 0,%0\n\tnop" : "=r"(x))
> #endif
> #define current_text_addr() ({ void *pc; current_ia(pc); pc; })

I was thinking something like:

diff --git a/arch/parisc/include/asm/processor.h
b/arch/parisc/include/asm/processor.h
index 2dbe5580a1a4..0d7f64ef9c7d 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -20,17 +20,6 @@
 #include <asm/percpu.h>
 #endif /* __ASSEMBLY__ */

-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#ifdef CONFIG_PA20
-#define current_ia(x)  __asm__("mfia %0" : "=r"(x))

-#else /* mfia added in pa2.0 */
-#define current_ia(x)  __asm__("blr 0,%0\n\tnop" : "=r"(x))
-#endif
-#define current_text_addr() ({ void *pc; current_ia(pc); pc; })
-
 #define HAVE_ARCH_PICK_MMAP_LAYOUT

 #define TASK_SIZE_OF(tsk)       ((tsk)->thread.task_size)
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 2ef83d78eec4..818ac8a60a4a 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -430,6 +430,18 @@ int unwind_to_user(struct unwind_frame_info *info)
        return ret;
 }

+/*
+ * Arch-specific marcro that returns the current instruction pointer ("program
+ * counter").  Prefer this to _THIS_IP_ for the sole purpose of not emitting a
+ * label, which breaks unwinding.
+ */
+#ifdef CONFIG_PA20
+#define current_ia(x)   __asm__("mfia %0" : "=r"(x))
+#else /* mfia added in pa2.0 */
+#define current_ia(x)   __asm__("blr 0,%0\n\tnop" : "=r"(x))
+#endif
+#define current_text_addr ({ void *pc; current_ia(pc); (unsigned long) pc; })
+
 unsigned long return_address(unsigned int level)
 {
        struct unwind_frame_info info;
@@ -439,8 +451,8 @@ unsigned long return_address(unsigned int level)
        /* initialize unwind info */
        asm volatile ("copy %%r30, %0" : "=r"(sp));
        memset(&r, 0, sizeof(struct pt_regs));
-       r.iaoq[0] = (unsigned long) current_text_addr();
-       r.gr[2] = (unsigned long) __builtin_return_address(0);
+       r.iaoq[0] = current_text_addr;
+       r.gr[2] = _RET_IP_;
        r.gr[30] = sp;
        unwind_frame_init(&info, current, &r);

Thoughts?  Idea being there's only one call site in your tree that has
this requirement (and the other one in
include/net/inet_connection_sock.h I don't think is correct, and will
send a patch out imminently).

-- 
Thanks,
~Nick Desaulniers


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On 2018-08-01 5:49 PM, Nick Desaulniers wrote:
> Thoughts?  Idea being there's only one call site in your tree that has
> this requirement (and the other one in
> include/net/inet_connection_sock.h I don't think is correct, and will
> send a patch out imminently).
What about the uses in the fs support, etc?

Dave

-- 
John David Anglin  dave.anglin@bell.net



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On Wed, Aug 1, 2018 at 3:12 PM John David Anglin <dave.anglin@bell.net> wrote:
>
> On 2018-08-01 5:49 PM, Nick Desaulniers wrote:
> > Thoughts?  Idea being there's only one call site in your tree that has
> > this requirement (and the other one in
> > include/net/inet_connection_sock.h I don't think is correct, and will
> > send a patch out imminently).

Turns out it is correct (I assumed by caller, they meant _RET_IP_, but
they're in an inline function). https://lkml.org/lkml/2018/8/1/1687 is
the patch.

> What about the uses in the fs support, etc?

Sorry, I don't see it?

$ ag current_text_addr
and
$ grep -R current_text_addr

turn up nothing in fs/.  Is this torvals/linux with no out of tree patches?
-- 
Thanks,
~Nick Desaulniers


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On 2018-08-01 6:18 PM, Nick Desaulniers wrote:
>> What about the uses in the fs support, etc?
> Sorry, I don't see it?
I mean _THIS_IP_.

Dave

-- 
John David Anglin  dave.anglin@bell.net



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On Wed, Aug 1, 2018 at 5:49 PM John David Anglin <dave.anglin@bell.net> wrote:
>
> On 2018-08-01 6:18 PM, Nick Desaulniers wrote:
> >> What about the uses in the fs support, etc?
> > Sorry, I don't see it?
> I mean _THIS_IP_.

I don't understand, I'm referring to current_text_addr().  Maybe this
explains more what I'm trying to do:
https://lkml.org/lkml/2018/8/1/1689

If I understand your point correctly, is it that you're saying that
_THIS_IP_ should be implemented in terms of inline assembly (as in
what current_text_addr() is currently)?  If that's what you mean and
I'm understanding correctly, my point is that we should be preferring
the generic C implementation as that's what's being used in most
places currently, so if it was broken you'd likely already know about
it.  Unless unwinding is truly broken by the additional label, I don't
think we need an inline assembly implementation of current_text_addr()
for parisc (or any arch for that matter).  If we do, then it can be
localized to the parisc unwinding code, that way it can be
consolidated everywhere else for every other arch.

-- 
Thanks,
~Nick Desaulniers


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From: Alex Ghiti <alex@ghiti.fr>
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Subject: Re: [PATCH v5 09/11] hugetlb: Introduce generic version of
 huge_ptep_set_wrprotect
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Ok, I tried every defconfig available:

- for the nohash/32, I found that I could use mpc885_ads_defconfig and I 
activated HUGETLBFS.
I removed the definition of huge_ptep_set_wrprotect from 
nohash/32/pgtable.h, add an #error in
include/asm-generic/hugetlb.h right before the generic definition of 
huge_ptep_set_wrprotect,
and fell onto it at compile-time:
=> I'm pretty confident then that removing the definition of 
huge_ptep_set_wrprotect does not
break anythingin this case.

- regardind book3s/32, I did not find any defconfig with 
CONFIG_PPC_BOOK3S_32, CONFIG_PPC32
allowing to enable huge page support (ie CONFIG_SYS_SUPPORTS_HUGETLBFS)
=> Do you have a defconfig that would allow me to try the same as above ?

Thanks,

Alex


On 07/31/2018 11:17 AM, Alexandre Ghiti wrote:
>
> On 07/31/2018 12:06 PM, Michael Ellerman wrote:
>> Alexandre Ghiti <alex@ghiti.fr> writes:
>>
>>> arm, ia64, mips, sh, x86 architectures use the same version
>>> of huge_ptep_set_wrprotect, so move this generic implementation into
>>> asm-generic/hugetlb.h.
>>> Note: powerpc uses twice for book3s/32 and nohash/32 the same 
>>> version as
>>> the above architectures, but the modification was not straightforward
>>> and hence has not been done.
>> Do you remember what the problem was there?
>>
>> It looks like you should just be able to drop them like the others. I
>> assume there's some header spaghetti that causes problems though?
>
> Yes, the header spaghetti frightened me a bit. Maybe I should have 
> tried harder: I can try to remove them and find the right defconfigs 
> to compile both to begin with. And to guarantee the functionality is 
> preserved, can I use the testsuite of libhugetlbfs with qemu ?
>
> Alex
>
>>
>> cheers
>>
>>
>>> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
>>> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
>>> ---
>>>   arch/arm/include/asm/hugetlb-3level.h        | 6 ------
>>>   arch/arm64/include/asm/hugetlb.h             | 1 +
>>>   arch/ia64/include/asm/hugetlb.h              | 6 ------
>>>   arch/mips/include/asm/hugetlb.h              | 6 ------
>>>   arch/parisc/include/asm/hugetlb.h            | 1 +
>>>   arch/powerpc/include/asm/book3s/32/pgtable.h | 2 ++
>>>   arch/powerpc/include/asm/book3s/64/pgtable.h | 1 +
>>>   arch/powerpc/include/asm/nohash/32/pgtable.h | 2 ++
>>>   arch/powerpc/include/asm/nohash/64/pgtable.h | 1 +
>>>   arch/sh/include/asm/hugetlb.h                | 6 ------
>>>   arch/sparc/include/asm/hugetlb.h             | 1 +
>>>   arch/x86/include/asm/hugetlb.h               | 6 ------
>>>   include/asm-generic/hugetlb.h                | 8 ++++++++
>>>   13 files changed, 17 insertions(+), 30 deletions(-)
>>>
>>> diff --git a/arch/arm/include/asm/hugetlb-3level.h 
>>> b/arch/arm/include/asm/hugetlb-3level.h
>>> index b897541520ef..8247cd6a2ac6 100644
>>> --- a/arch/arm/include/asm/hugetlb-3level.h
>>> +++ b/arch/arm/include/asm/hugetlb-3level.h
>>> @@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
>>>       return retval;
>>>   }
>>>   -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>> -                       unsigned long addr, pte_t *ptep)
>>> -{
>>> -    ptep_set_wrprotect(mm, addr, ptep);
>>> -}
>>> -
>>>   static inline int huge_ptep_set_access_flags(struct vm_area_struct 
>>> *vma,
>>>                            unsigned long addr, pte_t *ptep,
>>>                            pte_t pte, int dirty)
>>> diff --git a/arch/arm64/include/asm/hugetlb.h 
>>> b/arch/arm64/include/asm/hugetlb.h
>>> index 3e7f6e69b28d..f4f69ae5466e 100644
>>> --- a/arch/arm64/include/asm/hugetlb.h
>>> +++ b/arch/arm64/include/asm/hugetlb.h
>>> @@ -48,6 +48,7 @@ extern int huge_ptep_set_access_flags(struct 
>>> vm_area_struct *vma,
>>>   #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
>>>   extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
>>>                        unsigned long addr, pte_t *ptep);
>>> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>>   extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>>                       unsigned long addr, pte_t *ptep);
>>>   #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
>>> diff --git a/arch/ia64/include/asm/hugetlb.h 
>>> b/arch/ia64/include/asm/hugetlb.h
>>> index cbe296271030..49d1f7949f3a 100644
>>> --- a/arch/ia64/include/asm/hugetlb.h
>>> +++ b/arch/ia64/include/asm/hugetlb.h
>>> @@ -27,12 +27,6 @@ static inline void huge_ptep_clear_flush(struct 
>>> vm_area_struct *vma,
>>>   {
>>>   }
>>>   -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>> -                       unsigned long addr, pte_t *ptep)
>>> -{
>>> -    ptep_set_wrprotect(mm, addr, ptep);
>>> -}
>>> -
>>>   static inline int huge_ptep_set_access_flags(struct vm_area_struct 
>>> *vma,
>>>                            unsigned long addr, pte_t *ptep,
>>>                            pte_t pte, int dirty)
>>> diff --git a/arch/mips/include/asm/hugetlb.h 
>>> b/arch/mips/include/asm/hugetlb.h
>>> index 6ff2531cfb1d..3dcf5debf8c4 100644
>>> --- a/arch/mips/include/asm/hugetlb.h
>>> +++ b/arch/mips/include/asm/hugetlb.h
>>> @@ -63,12 +63,6 @@ static inline int huge_pte_none(pte_t pte)
>>>       return !val || (val == (unsigned long)invalid_pte_table);
>>>   }
>>>   -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>> -                       unsigned long addr, pte_t *ptep)
>>> -{
>>> -    ptep_set_wrprotect(mm, addr, ptep);
>>> -}
>>> -
>>>   static inline int huge_ptep_set_access_flags(struct vm_area_struct 
>>> *vma,
>>>                            unsigned long addr,
>>>                            pte_t *ptep, pte_t pte,
>>> diff --git a/arch/parisc/include/asm/hugetlb.h 
>>> b/arch/parisc/include/asm/hugetlb.h
>>> index fb7e0fd858a3..9c3950ca2974 100644
>>> --- a/arch/parisc/include/asm/hugetlb.h
>>> +++ b/arch/parisc/include/asm/hugetlb.h
>>> @@ -39,6 +39,7 @@ static inline void huge_ptep_clear_flush(struct 
>>> vm_area_struct *vma,
>>>   {
>>>   }
>>>   +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>>   void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>>                          unsigned long addr, pte_t *ptep);
>>>   diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h 
>>> b/arch/powerpc/include/asm/book3s/32/pgtable.h
>>> index 02f5acd7ccc4..d2cd1d0226e9 100644
>>> --- a/arch/powerpc/include/asm/book3s/32/pgtable.h
>>> +++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
>>> @@ -228,6 +228,8 @@ static inline void ptep_set_wrprotect(struct 
>>> mm_struct *mm, unsigned long addr,
>>>   {
>>>       pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
>>>   }
>>> +
>>> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>>   static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>>                          unsigned long addr, pte_t *ptep)
>>>   {
>>> diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h 
>>> b/arch/powerpc/include/asm/book3s/64/pgtable.h
>>> index 42aafba7a308..7d957f7c47cd 100644
>>> --- a/arch/powerpc/include/asm/book3s/64/pgtable.h
>>> +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
>>> @@ -451,6 +451,7 @@ static inline void ptep_set_wrprotect(struct 
>>> mm_struct *mm, unsigned long addr,
>>>           pte_update(mm, addr, ptep, 0, _PAGE_PRIVILEGED, 0);
>>>   }
>>>   +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>>   static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>>                          unsigned long addr, pte_t *ptep)
>>>   {
>>> diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h 
>>> b/arch/powerpc/include/asm/nohash/32/pgtable.h
>>> index 7c46a98cc7f4..f39e200d9591 100644
>>> --- a/arch/powerpc/include/asm/nohash/32/pgtable.h
>>> +++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
>>> @@ -249,6 +249,8 @@ static inline void ptep_set_wrprotect(struct 
>>> mm_struct *mm, unsigned long addr,
>>>   {
>>>       pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
>>>   }
>>> +
>>> +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>>   static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>>                          unsigned long addr, pte_t *ptep)
>>>   {
>>> diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h 
>>> b/arch/powerpc/include/asm/nohash/64/pgtable.h
>>> index dd0c7236208f..69fbf7e9b4db 100644
>>> --- a/arch/powerpc/include/asm/nohash/64/pgtable.h
>>> +++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
>>> @@ -238,6 +238,7 @@ static inline void ptep_set_wrprotect(struct 
>>> mm_struct *mm, unsigned long addr,
>>>       pte_update(mm, addr, ptep, _PAGE_RW, 0, 0);
>>>   }
>>>   +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>>   static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>>                          unsigned long addr, pte_t *ptep)
>>>   {
>>> diff --git a/arch/sh/include/asm/hugetlb.h 
>>> b/arch/sh/include/asm/hugetlb.h
>>> index f1bbd255ee43..8df4004977b9 100644
>>> --- a/arch/sh/include/asm/hugetlb.h
>>> +++ b/arch/sh/include/asm/hugetlb.h
>>> @@ -32,12 +32,6 @@ static inline void huge_ptep_clear_flush(struct 
>>> vm_area_struct *vma,
>>>   {
>>>   }
>>>   -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>> -                       unsigned long addr, pte_t *ptep)
>>> -{
>>> -    ptep_set_wrprotect(mm, addr, ptep);
>>> -}
>>> -
>>>   static inline int huge_ptep_set_access_flags(struct vm_area_struct 
>>> *vma,
>>>                            unsigned long addr, pte_t *ptep,
>>>                            pte_t pte, int dirty)
>>> diff --git a/arch/sparc/include/asm/hugetlb.h 
>>> b/arch/sparc/include/asm/hugetlb.h
>>> index 2101ea217f33..c41754a113f3 100644
>>> --- a/arch/sparc/include/asm/hugetlb.h
>>> +++ b/arch/sparc/include/asm/hugetlb.h
>>> @@ -32,6 +32,7 @@ static inline void huge_ptep_clear_flush(struct 
>>> vm_area_struct *vma,
>>>   {
>>>   }
>>>   +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>>   static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>>                          unsigned long addr, pte_t *ptep)
>>>   {
>>> diff --git a/arch/x86/include/asm/hugetlb.h 
>>> b/arch/x86/include/asm/hugetlb.h
>>> index 59c056adb3c9..a3f781f7a264 100644
>>> --- a/arch/x86/include/asm/hugetlb.h
>>> +++ b/arch/x86/include/asm/hugetlb.h
>>> @@ -13,12 +13,6 @@ static inline int is_hugepage_only_range(struct 
>>> mm_struct *mm,
>>>       return 0;
>>>   }
>>>   -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>> -                       unsigned long addr, pte_t *ptep)
>>> -{
>>> -    ptep_set_wrprotect(mm, addr, ptep);
>>> -}
>>> -
>>>   static inline int huge_ptep_set_access_flags(struct vm_area_struct 
>>> *vma,
>>>                            unsigned long addr, pte_t *ptep,
>>>                            pte_t pte, int dirty)
>>> diff --git a/include/asm-generic/hugetlb.h 
>>> b/include/asm-generic/hugetlb.h
>>> index 6c0c8b0c71e0..9b9039845278 100644
>>> --- a/include/asm-generic/hugetlb.h
>>> +++ b/include/asm-generic/hugetlb.h
>>> @@ -102,4 +102,12 @@ static inline int prepare_hugepage_range(struct 
>>> file *file,
>>>   }
>>>   #endif
>>>   +#ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
>>> +static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
>>> +        unsigned long addr, pte_t *ptep)
>>> +{
>>> +    ptep_set_wrprotect(mm, addr, ptep);
>>> +}
>>> +#endif
>>> +
>>>   #endif /* _ASM_GENERIC_HUGETLB_H */
>>> -- 
>>> 2.16.2
>



From - Thu Nov 08 21:41:49 2018
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Subject: Re: [PATCH v5 09/11] hugetlb: Introduce generic version of huge_ptep_set_wrprotect
Date: Fri, 03 Aug 2018 18:51:03 +1000
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References: <20180731060155.16915-1-alex@ghiti.fr> <20180731060155.16915-10-alex@ghiti.fr> <87h8kfhg7o.fsf@concordia.ellerman.id.au> <6acb1389-6998-bafb-cf69-174fd522c04c@ghiti.fr> <90bf556f-144d-24b8-d2f6-70fee4a30559@ghiti.fr>
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Hi Alex,

Sorry missed your previous mail.

Alex Ghiti <alex@ghiti.fr> writes:
> Ok, I tried every defconfig available:
>
> - for the nohash/32, I found that I could use mpc885_ads_defconfig and I 
> activated HUGETLBFS.
> I removed the definition of huge_ptep_set_wrprotect from 
> nohash/32/pgtable.h, add an #error in
> include/asm-generic/hugetlb.h right before the generic definition of 
> huge_ptep_set_wrprotect,
> and fell onto it at compile-time:
> => I'm pretty confident then that removing the definition of 
> huge_ptep_set_wrprotect does not
> break anythingin this case.

Thanks, that sounds good.

> - regardind book3s/32, I did not find any defconfig with 
> CONFIG_PPC_BOOK3S_32, CONFIG_PPC32
> allowing to enable huge page support (ie CONFIG_SYS_SUPPORTS_HUGETLBFS)
> => Do you have a defconfig that would allow me to try the same as above ?

I think you're right, it's dead code AFAICS.

We have:

config PPC_BOOK3S_64
        ...
	select SYS_SUPPORTS_HUGETLBFS

config PPC_FSL_BOOK3E
        ...
	select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64

config PPC_8xx
	...
	select SYS_SUPPORTS_HUGETLBFS


So we can't ever enable HUGETLBFS for Book3S 32.

Presumably the code got copied when we split the headers apart.

So I think you can just ignore that one, and we'll delete it.

cheers


From - Thu Nov 08 21:41:49 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
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Subject: Re: [PATCH v5 09/11] hugetlb: Introduce generic version of
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Hi Michael,

Thanks, I will then remove those two specific implementations and we'll 
use the generic ones.

I send a v6 asap.

Thanks again,

Alex


On 08/03/2018 10:51 AM, Michael Ellerman wrote:
> Hi Alex,
>
> Sorry missed your previous mail.
>
> Alex Ghiti <alex@ghiti.fr> writes:
>> Ok, I tried every defconfig available:
>>
>> - for the nohash/32, I found that I could use mpc885_ads_defconfig and I
>> activated HUGETLBFS.
>> I removed the definition of huge_ptep_set_wrprotect from
>> nohash/32/pgtable.h, add an #error in
>> include/asm-generic/hugetlb.h right before the generic definition of
>> huge_ptep_set_wrprotect,
>> and fell onto it at compile-time:
>> => I'm pretty confident then that removing the definition of
>> huge_ptep_set_wrprotect does not
>> break anythingin this case.
> Thanks, that sounds good.
>
>> - regardind book3s/32, I did not find any defconfig with
>> CONFIG_PPC_BOOK3S_32, CONFIG_PPC32
>> allowing to enable huge page support (ie CONFIG_SYS_SUPPORTS_HUGETLBFS)
>> => Do you have a defconfig that would allow me to try the same as above ?
> I think you're right, it's dead code AFAICS.
>
> We have:
>
> config PPC_BOOK3S_64
>          ...
> 	select SYS_SUPPORTS_HUGETLBFS
>
> config PPC_FSL_BOOK3E
>          ...
> 	select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64
>
> config PPC_8xx
> 	...
> 	select SYS_SUPPORTS_HUGETLBFS
>
>
> So we can't ever enable HUGETLBFS for Book3S 32.
>
> Presumably the code got copied when we split the headers apart.
>
> So I think you can just ignore that one, and we'll delete it.
>
> cheers



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On 2018-08-02 4:31 PM, Nick Desaulniers wrote:
> If I understand your point correctly, is it that you're saying that
> _THIS_IP_  should be implemented in terms of inline assembly (as in
> what current_text_addr() is currently)?  If that's what you mean and
> I'm understanding correctly, my point is that we should be preferring
> the generic C implementation as that's what's being used in most
> places currently, so if it was broken you'd likely already know about
> it.  Unless unwinding is truly broken by the additional label, I don't
> think we need an inline assembly implementation of current_text_addr()
> for parisc (or any arch for that matter).  If we do, then it can be
> localized to the parisc unwinding code, that way it can be
> consolidated everywhere else for every other arch.
The label breaks the unwind data, not the unwind code.  So, localizing 
the use of
current_text_addr() to the parisc unwind code doesn't help.

Personally, I prefer the implementation of current_text_addr() because:

1) The generated code is smaller, and
2) it doesn't introduce any unnecessary labels into the text.

As noted, these labels can cause issues with unwinding.

Dave

-- 
John David Anglin  dave.anglin@bell.net



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On Fri, Aug 3, 2018 at 10:57 AM John David Anglin <dave.anglin@bell.net> wrote:
>
> On 2018-08-02 4:31 PM, Nick Desaulniers wrote:
> > If I understand your point correctly, is it that you're saying that
> > _THIS_IP_  should be implemented in terms of inline assembly (as in
> > what current_text_addr() is currently)?  If that's what you mean and
> > I'm understanding correctly, my point is that we should be preferring
> > the generic C implementation as that's what's being used in most
> > places currently, so if it was broken you'd likely already know about
> > it.  Unless unwinding is truly broken by the additional label, I don't
> > think we need an inline assembly implementation of current_text_addr()
> > for parisc (or any arch for that matter).  If we do, then it can be
> > localized to the parisc unwinding code, that way it can be
> > consolidated everywhere else for every other arch.
> The label breaks the unwind data, not the unwind code.  So, localizing
> the use of
> current_text_addr() to the parisc unwind code doesn't help.

But the kernel uses the generic _THIS_IP_ *everywhere*, not parisc's
custom current_text_addr().  So if this did actually break unwinding,
you should have noticed by now.  There's only one call site that uses
the custom current_text_addr(), which is what my patch is addressing.

Localizing the custom implementation would literally produce the same
binary as is produced today, but allow us to start removing all the
other custom implementations of current_text_addr() from
arch/*/include/asm/processor.h, which is why I proposed that as an
alternative to this patch.

> Personally, I prefer the implementation of current_text_addr() because:
>
> 1) The generated code is smaller, and

One instruction vs two, for a single call site that I bet is cold and
not inlined in multiple places.

> 2) it doesn't introduce any unnecessary labels into the text.
>
> As noted, these labels can cause issues with unwinding.

Can you confirm that applying this patch actually breaks unwinding?

-- 
Thanks,
~Nick Desaulniers


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On 2018-08-03 2:11 PM, Nick Desaulniers wrote:
> But the kernel uses the generic_THIS_IP_  *everywhere*, not parisc's
> custom current_text_addr().  So if this did actually break unwinding,
> you should have noticed by now.
The unwind problem was noticed.

Patches were recently applied to gcc and binutils to try and fix it.  
The gcc patch moved
branch tables to rodata so that the label at the head of the table 
wasn't in text.

https://gcc.gnu.org/ml/gcc-patches/2018-07/msg01804.html
https://sourceware.org/ml/binutils/2018-07/msg00474.html

When I saw your suggested change, I realized there was another source of 
text labels
that need linker relocations.

Dave

-- 
John David Anglin  dave.anglin@bell.net



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On Fri, Aug 3, 2018 at 12:09 PM John David Anglin <dave.anglin@bell.net> wrote:
>
> On 2018-08-03 2:11 PM, Nick Desaulniers wrote:
> > But the kernel uses the generic_THIS_IP_  *everywhere*, not parisc's
> > custom current_text_addr().  So if this did actually break unwinding,
> > you should have noticed by now.
> The unwind problem was noticed.

So parisc is currently broken (doesn't unwind) due to the pervasive
use of _THIS_IP_ (generic C) throughout the kernel?

If no, that implies this patch (generic C) causes no unwinding problems.
If yes, that implies that the diff I posted later in this thread
(inline assembly) is preferable, and that parisc has bigger problems
(and probably needs to do rewrite the unwinding code to handle these
extra labels everywhere).

> Patches were recently applied to gcc and binutils to try and fix it.
> The gcc patch moved
> branch tables to rodata so that the label at the head of the table
> wasn't in text.
>
> https://gcc.gnu.org/ml/gcc-patches/2018-07/msg01804.html
> https://sourceware.org/ml/binutils/2018-07/msg00474.html
>
> When I saw your suggested change, I realized there was another source of
> text labels
> that need linker relocations.

Thank you for the links.

On Fri, Aug 3, 2018 at 10:57 AM John David Anglin <dave.anglin@bell.net> wrote:
> The label breaks the unwind data, not the unwind code.  So, localizing
> the use of
> current_text_addr() to the parisc unwind code doesn't help.

Have you confirmed that applying my patch breaks *the ability to
unwind correctly*? It looks like return_address() is used in
ftrace_return_address(), so I assume you can boot a kernel with my
patch applied, and CONFIG_FTRACE=y, then run:

$ sudo trace-cmd record -p function date
$ trace-cmd report | grep date- | less

and see if the stacks aren't unwound or look messed up.
-- 
Thanks,
~Nick Desaulniers


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Subject: Re: [PATCH] parisc: prefer _THIS_IP_ and _RET_IP_ statement
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Cc: jejb@parisc-linux.org,
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On 03.08.2018 22:33, Nick Desaulniers wrote:
> On Fri, Aug 3, 2018 at 12:09 PM John David Anglin <dave.anglin@bell.net> wrote:
>>
>> On 2018-08-03 2:11 PM, Nick Desaulniers wrote:
>>> But the kernel uses the generic_THIS_IP_  *everywhere*, not parisc's
>>> custom current_text_addr().  So if this did actually break unwinding,
>>> you should have noticed by now.
>> The unwind problem was noticed.
> 
> So parisc is currently broken (doesn't unwind) due to the pervasive
> use of _THIS_IP_ (generic C) throughout the kernel?

I tested it on the 32bit kernel.
The answer is: No. Unwinding works (with and without your patch).
 
> If no, that implies this patch (generic C) causes no unwinding problems.

correct.

> If yes, that implies that the diff I posted later in this thread
> (inline assembly) is preferable, and that parisc has bigger problems
> (and probably needs to do rewrite the unwinding code to handle these
> extra labels everywhere).
> 
>> Patches were recently applied to gcc and binutils to try and fix it.
>> The gcc patch moved
>> branch tables to rodata so that the label at the head of the table
>> wasn't in text.
>>
>> https://gcc.gnu.org/ml/gcc-patches/2018-07/msg01804.html
>> https://sourceware.org/ml/binutils/2018-07/msg00474.html
>>
>> When I saw your suggested change, I realized there was another source of
>> text labels
>> that need linker relocations.
> 
> Thank you for the links.
> 
> On Fri, Aug 3, 2018 at 10:57 AM John David Anglin <dave.anglin@bell.net> wrote:
>> The label breaks the unwind data, not the unwind code.  So, localizing
>> the use of
>> current_text_addr() to the parisc unwind code doesn't help.
> 
> Have you confirmed that applying my patch breaks *the ability to
> unwind correctly*?

I tested your patch (on 32bit).
Your patch does not break anything.

> It looks like return_address() is used in
> ftrace_return_address(), so I assume you can boot a kernel with my
> patch applied, and CONFIG_FTRACE=y, then run:
> 
> $ sudo trace-cmd record -p function date
> $ trace-cmd report | grep date- | less
> 
> and see if the stacks aren't unwound or look messed up.

I faced issues with trace-cmd, but calling ftracing functions manually worked.

So, your patch is basically OK and doesn't break anything.
But I agree with Dave that Andrew, that THIS_IP is ugly.

Helge


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Subject: [PATCH v6 00/11] hugetlb: Factorize hugetlb architecture primitives
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[CC linux-mm for inclusion in -mm tree]                                          
                                                                                 
In order to reduce copy/paste of functions across architectures and then         
make riscv hugetlb port (and future ports) simpler and smaller, this             
patchset intends to factorize the numerous hugetlb primitives that are           
defined across all the architectures.                                            
                                                                                 
Except for prepare_hugepage_range, this patchset moves the versions that         
are just pass-through to standard pte primitives into                            
asm-generic/hugetlb.h by using the same #ifdef semantic that can be              
found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.                            
                                                                                 
s390 architecture has not been tackled in this serie since it does not           
use asm-generic/hugetlb.h at all.                                                
                                                                                 
This patchset has been compiled on all addressed architectures with              
success (except for parisc, but the problem does not come from this              
series).                                                                         
                                                                                 
v6:                                                                              
  - Remove nohash/32 and book3s/32 powerpc specific implementations in
    order to use the generic ones.                                                        
  - Add all the Reviewed-by, Acked-by and Tested-by in the commits,              
    thanks to everyone.                                                          
                                                                                 
v5:                                                                              
  As suggested by Mike Kravetz, no need to move the #include                     
  <asm-generic/hugetlb.h> for arm and x86 architectures, let it live at          
  the top of the file.                                                           
                                                                                 
v4:                                                                              
  Fix powerpc build error due to misplacing of #include                          
  <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as              
  pointed by Christophe Leroy.                                                   
                                                                                 
v1, v2, v3:                                                                      
  Same version, just problems with email provider and misuse of                  
  --batch-size option of git send-email

Alexandre Ghiti (11):
  hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
  hugetlb: Introduce generic version of hugetlb_free_pgd_range
  hugetlb: Introduce generic version of set_huge_pte_at
  hugetlb: Introduce generic version of huge_ptep_get_and_clear
  hugetlb: Introduce generic version of huge_ptep_clear_flush
  hugetlb: Introduce generic version of huge_pte_none
  hugetlb: Introduce generic version of huge_pte_wrprotect
  hugetlb: Introduce generic version of prepare_hugepage_range
  hugetlb: Introduce generic version of huge_ptep_set_wrprotect
  hugetlb: Introduce generic version of huge_ptep_set_access_flags
  hugetlb: Introduce generic version of huge_ptep_get

 arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
 arch/arm/include/asm/hugetlb.h               | 30 ----------
 arch/arm64/include/asm/hugetlb.h             | 39 +++---------
 arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
 arch/mips/include/asm/hugetlb.h              | 40 +++----------
 arch/parisc/include/asm/hugetlb.h            | 33 +++--------
 arch/powerpc/include/asm/book3s/32/pgtable.h |  6 --
 arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
 arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
 arch/powerpc/include/asm/nohash/32/pgtable.h |  6 --
 arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
 arch/sh/include/asm/hugetlb.h                | 54 ++---------------
 arch/sparc/include/asm/hugetlb.h             | 40 +++----------
 arch/x86/include/asm/hugetlb.h               | 69 ----------------------
 include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
 15 files changed, 135 insertions(+), 394 deletions(-)

-- 
2.16.2



From - Thu Nov 08 21:41:49 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
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Subject: [PATCH v6 01/11] hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
Date: Mon,  6 Aug 2018 17:57:01 +0000
Lines: 46
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2840725>

asm-generic/hugetlb.h proposes generic implementations of hugetlb
related functions: use __HAVE_ARCH_HUGE* defines in order to make arch
specific implementations of hugetlb functions consistent with pgtable.h
scheme.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm64/include/asm/hugetlb.h | 2 +-
 include/asm-generic/hugetlb.h    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index e73f68569624..3fcf14663dfa 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -81,9 +81,9 @@ extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTE_CLEAR
 extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 			   pte_t *ptep, unsigned long sz);
-#define huge_pte_clear huge_pte_clear
 extern void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
 				 pte_t *ptep, pte_t pte, unsigned long sz);
 #define set_huge_swap_pte_at set_huge_swap_pte_at
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9d0cde8ab716..3da7cff52360 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -32,7 +32,7 @@ static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot)
 	return pte_modify(pte, newprot);
 }
 
-#ifndef huge_pte_clear
+#ifndef __HAVE_ARCH_HUGE_PTE_CLEAR
 static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 		    pte_t *ptep, unsigned long sz)
 {
-- 
2.16.2



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Subject: [PATCH v6 02/11] hugetlb: Introduce generic version of hugetlb_free_pgd_range
Date: Mon,  6 Aug 2018 17:57:02 +0000
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2840726>

arm, arm64, mips, parisc, sh, x86 architectures use the
same version of hugetlb_free_pgd_range, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb.h     |  9 ---------
 arch/arm64/include/asm/hugetlb.h   | 10 ----------
 arch/ia64/include/asm/hugetlb.h    |  5 +++--
 arch/mips/include/asm/hugetlb.h    | 13 ++-----------
 arch/parisc/include/asm/hugetlb.h  | 12 ++----------
 arch/powerpc/include/asm/hugetlb.h |  4 +++-
 arch/sh/include/asm/hugetlb.h      | 12 ++----------
 arch/sparc/include/asm/hugetlb.h   |  4 +++-
 arch/x86/include/asm/hugetlb.h     |  8 --------
 include/asm-generic/hugetlb.h      | 11 +++++++++++
 10 files changed, 26 insertions(+), 62 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 7d26f6c4f0f5..537660891f9f 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -27,15 +27,6 @@
 
 #include <asm/hugetlb-3level.h>
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3fcf14663dfa..4af1a800a900 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -25,16 +25,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return READ_ONCE(*ptep);
 }
 
-
-
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 74d2a5540aaf..afe9fa4d969b 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -3,9 +3,8 @@
 #define _ASM_IA64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -70,4 +69,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_IA64_HUGETLB_H */
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 982bc0685330..53764050243e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -10,8 +10,6 @@
 #define __ASM_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -38,15 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr,
-					  unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -114,4 +103,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* __ASM_HUGETLB_H */
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 58e0f4620426..28c23b68d38d 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -3,8 +3,6 @@
 #define _ASM_PARISC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
@@ -32,14 +30,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
@@ -71,4 +61,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_PARISC64_HUGETLB_H */
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 3225eb6402cc..a7d5c739df9b 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -4,7 +4,6 @@
 
 #ifdef CONFIG_HUGETLB_PAGE
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 extern struct kmem_cache *hugepte_cache;
 
@@ -113,6 +112,7 @@ static inline void flush_hugetlb_page(struct vm_area_struct *vma,
 void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
 #endif
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -179,6 +179,8 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #else /* ! CONFIG_HUGETLB_PAGE */
 static inline void flush_hugetlb_page(struct vm_area_struct *vma,
 				      unsigned long vmaddr)
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 735939c0f513..f6a51b609409 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -4,8 +4,6 @@
 
 #include <asm/cacheflush.h>
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -27,14 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -85,4 +75,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 	clear_bit(PG_dcache_clean, &page->flags);
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SH_HUGETLB_H */
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 300557c66698..59d89b52ccb7 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
 #define _ASM_SPARC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #ifdef CONFIG_HUGETLB_PAGE
 struct pud_huge_patch_entry {
@@ -84,8 +83,11 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SPARC64_HUGETLB_H */
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 5ed826da5e07..398da3b3414c 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,14 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 3da7cff52360..c697ca9dda18 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -40,4 +40,15 @@ static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
+		unsigned long addr, unsigned long end,
+		unsigned long floor, unsigned long ceiling)
+{
+	free_pgd_range(tlb, addr, end, floor, ceiling);
+}
+
+
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:49 2018
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X-Mozilla-Keys:                                                                                 
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v6 03/11] hugetlb: Introduce generic version of set_huge_pte_at
Date: Mon,  6 Aug 2018 17:57:03 +0000
Lines: 185
Approved: news@gmane.org
Message-ID: <20180806175711.24438-4-alex@ghiti.fr>
References: <20180806175711.24438-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
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Xref: news.gmane.org gmane.linux.kernel:2840727 gmane.linux.kernel.mm:201308 gmane.linux.ports.arm.kernel:667938 gmane.linux.ports.ia64:29048 gmane.linux.ports.mips.general:65910 gmane.linux.ports.parisc:28877 gmane.linux.ports.ppc64.devel:160968 gmane.linux.ports.sh.devel:57335 gmane.linux.ports.sparc:28187 gmane.linux.kernel.cross-arch:45597
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2840727>

arm, ia64, mips, powerpc, sh, x86 architectures use the
same version of set_huge_pte_at, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 6 ------
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 6 ------
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 +++++++-
 10 files changed, 10 insertions(+), 37 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index d4014fbe5ea3..398fb06e8207 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4af1a800a900..874661a1dff1 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -60,6 +60,7 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 				struct page *page, int writable);
 #define arch_make_huge_pte arch_make_huge_pte
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 			    pte_t *ptep, pte_t pte);
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index afe9fa4d969b..a235d6f60fb3 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 53764050243e..8ea439041d5d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,12 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 28c23b68d38d..77c8adbac7c3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -4,6 +4,7 @@
 
 #include <asm/page.h>
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index a7d5c739df9b..0794b53439d4 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,12 +132,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index f6a51b609409..bc552e37c1c9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 59d89b52ccb7..16b0c53ea6c9 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -12,6 +12,7 @@ struct pud_huge_patch_entry {
 extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 #endif
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 398da3b3414c..8db9a761964d 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,12 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index c697ca9dda18..ee010b756246 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -47,8 +47,14 @@ static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
 {
 	free_pgd_range(tlb, addr, end, floor, ceiling);
 }
+#endif
 
-
+#ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
+static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		pte_t *ptep, pte_t pte)
+{
+	set_pte_at(mm, addr, ptep, pte);
+}
 #endif
 
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:49 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v6 04/11] hugetlb: Introduce generic version of huge_ptep_get_and_clear
Date: Mon,  6 Aug 2018 17:57:04 +0000
Lines: 172
Approved: news@gmane.org
Message-ID: <20180806175711.24438-5-alex@ghiti.fr>
References: <20180806175711.24438-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel:2840728 gmane.linux.kernel.mm:201309 gmane.linux.ports.arm.kernel:667939 gmane.linux.ports.ia64:29049 gmane.linux.ports.mips.general:65911 gmane.linux.ports.parisc:28878 gmane.linux.ports.ppc64.devel:160969 gmane.linux.ports.sh.devel:57336 gmane.linux.ports.sparc:28188 gmane.linux.kernel.cross-arch:45598
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2840728>

arm, ia64, sh, x86 architectures use the
same version of huge_ptep_get_and_clear, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 13 insertions(+), 24 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 398fb06e8207..ad36e84b819a 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -49,12 +49,6 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	ptep_set_wrprotect(mm, addr, ptep);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 874661a1dff1..6ae0bcafe162 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -66,6 +66,7 @@ extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index a235d6f60fb3..6719c74da0de 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 8ea439041d5d..0959cc5a41fa 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,6 +36,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 77c8adbac7c3..6e281e1bb336 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -8,6 +8,7 @@
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 0794b53439d4..970101cf9c82 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,6 +132,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index bc552e37c1c9..08ee6c00b5e9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 16b0c53ea6c9..944e3a4bfaff 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -16,6 +16,7 @@ extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 8db9a761964d..e9e7fef867ad 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,12 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ee010b756246..0f6f151780dd 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -57,4 +57,12 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+		unsigned long addr, pte_t *ptep)
+{
+	return ptep_get_and_clear(mm, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:49 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v6 05/11] hugetlb: Introduce generic version of huge_ptep_clear_flush
Date: Mon,  6 Aug 2018 17:57:05 +0000
Lines: 162
Approved: news@gmane.org
Message-ID: <20180806175711.24438-6-alex@ghiti.fr>
References: <20180806175711.24438-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
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Xref: news.gmane.org gmane.linux.kernel:2840729 gmane.linux.kernel.mm:201310 gmane.linux.ports.arm.kernel:667940 gmane.linux.ports.ia64:29050 gmane.linux.ports.mips.general:65912 gmane.linux.ports.parisc:28879 gmane.linux.ports.ppc64.devel:160970 gmane.linux.ports.sh.devel:57337 gmane.linux.ports.sparc:28189 gmane.linux.kernel.cross-arch:45599
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2840729>

arm, x86 architectures use the same version of
huge_ptep_clear_flush, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 1 +
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 1 +
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index ad36e84b819a..b897541520ef 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 6ae0bcafe162..4c8dd488554d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -71,6 +71,7 @@ extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
 #define __HAVE_ARCH_HUGE_PTE_CLEAR
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 6719c74da0de..41b5f6adeee4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,6 +20,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 0959cc5a41fa..7df1f116a3cc 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -48,6 +48,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 	return pte;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 6e281e1bb336..9afff26747a1 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -32,6 +32,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 970101cf9c82..0b02856aa85b 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -143,6 +143,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 #endif
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 08ee6c00b5e9..9abf9c86b769 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,6 +25,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 944e3a4bfaff..651a9593fcee 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index e9e7fef867ad..fd59673e7a0a 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,12 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline int huge_pte_none(pte_t pte)
 {
 	return pte_none(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 0f6f151780dd..ffa63fd8388d 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -65,4 +65,12 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
+static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
+		unsigned long addr, pte_t *ptep)
+{
+	ptep_clear_flush(vma, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:50 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v6 06/11] hugetlb: Introduce generic version of huge_pte_none
Date: Mon,  6 Aug 2018 17:57:06 +0000
Lines: 183
Approved: news@gmane.org
Message-ID: <20180806175711.24438-7-alex@ghiti.fr>
References: <20180806175711.24438-1-alex@ghiti.fr>
NNTP-Posting-Host: blaine.gmane.org
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NNTP-Posting-Date: Mon, 6 Aug 2018 18:02:06 +0000 (UTC)
Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel:2840730 gmane.linux.kernel.mm:201311 gmane.linux.ports.arm.kernel:667941 gmane.linux.ports.ia64:29051 gmane.linux.ports.mips.general:65913 gmane.linux.ports.parisc:28880 gmane.linux.ports.ppc64.devel:160971 gmane.linux.ports.sh.devel:57338 gmane.linux.ports.sparc:28190 gmane.linux.kernel.cross-arch:45600
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2840730>

arm, arm64, ia64, mips, parisc, powerpc, sh, sparc, x86 architectures
use the same version of huge_pte_none, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb.h     | 5 -----
 arch/arm64/include/asm/hugetlb.h   | 5 -----
 arch/ia64/include/asm/hugetlb.h    | 5 -----
 arch/mips/include/asm/hugetlb.h    | 1 +
 arch/parisc/include/asm/hugetlb.h  | 5 -----
 arch/powerpc/include/asm/hugetlb.h | 5 -----
 arch/sh/include/asm/hugetlb.h      | 5 -----
 arch/sparc/include/asm/hugetlb.h   | 5 -----
 arch/x86/include/asm/hugetlb.h     | 5 -----
 include/asm-generic/hugetlb.h      | 7 +++++++
 10 files changed, 8 insertions(+), 40 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 537660891f9f..c821b550d6a4 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -44,11 +44,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4c8dd488554d..49247c6f94db 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 41b5f6adeee4..bf573500b3c4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 7df1f116a3cc..1c9c4531376c 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -55,6 +55,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_tlb_page(vma, addr & huge_page_mask(hstate_vma(vma)));
 }
 
+#define __HAVE_ARCH_HUGE_PTE_NONE
 static inline int huge_pte_none(pte_t pte)
 {
 	unsigned long val = pte_val(pte) & ~_PAGE_GLOBAL;
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 9afff26747a1..c09d8c74553c 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 0b02856aa85b..3562d46585ba 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 9abf9c86b769..a9f8266f33cf 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 651a9593fcee..11115bbd712e 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index fd59673e7a0a..42d872054791 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,11 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ffa63fd8388d..2fc3d68424e9 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -73,4 +73,11 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTE_NONE
+static inline int huge_pte_none(pte_t pte)
+{
+	return pte_none(pte);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:50 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v6 07/11] hugetlb: Introduce generic version of huge_pte_wrprotect
Date: Mon,  6 Aug 2018 17:57:07 +0000
Lines: 187
Approved: news@gmane.org
Message-ID: <20180806175711.24438-8-alex@ghiti.fr>
References: <20180806175711.24438-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
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        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
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Xref: news.gmane.org gmane.linux.kernel:2840732 gmane.linux.kernel.mm:201312 gmane.linux.ports.arm.kernel:667942 gmane.linux.ports.ia64:29052 gmane.linux.ports.mips.general:65914 gmane.linux.ports.parisc:28881 gmane.linux.ports.ppc64.devel:160972 gmane.linux.ports.sh.devel:57339 gmane.linux.ports.sparc:28191 gmane.linux.kernel.cross-arch:45601
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2840732>

arm, arm64, ia64, mips, parisc, powerpc, sh, sparc, x86
architectures use the same version of huge_pte_wrprotect, so move
this generic implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb.h     | 5 -----
 arch/arm64/include/asm/hugetlb.h   | 5 -----
 arch/ia64/include/asm/hugetlb.h    | 5 -----
 arch/mips/include/asm/hugetlb.h    | 5 -----
 arch/parisc/include/asm/hugetlb.h  | 5 -----
 arch/powerpc/include/asm/hugetlb.h | 5 -----
 arch/sh/include/asm/hugetlb.h      | 5 -----
 arch/sparc/include/asm/hugetlb.h   | 5 -----
 arch/x86/include/asm/hugetlb.h     | 5 -----
 include/asm-generic/hugetlb.h      | 7 +++++++
 10 files changed, 7 insertions(+), 45 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index c821b550d6a4..9ca14227eeb7 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -44,11 +44,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 49247c6f94db..1fd64ebf0cd7 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index bf573500b3c4..82fe3d7a38d9 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 1c9c4531376c..b3d6bb53ee6e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -62,11 +62,6 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index c09d8c74553c..5a102d7251e4 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 3562d46585ba..7123599089c6 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index a9f8266f33cf..54f65094efe6 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 11115bbd712e..f661362376e0 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 42d872054791..3cd3a2c9840e 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,11 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 2fc3d68424e9..cd9697672b79 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -80,4 +80,11 @@ static inline int huge_pte_none(pte_t pte)
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTE_WRPROTECT
+static inline pte_t huge_pte_wrprotect(pte_t pte)
+{
+	return pte_wrprotect(pte);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:50 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v6 08/11] hugetlb: Introduce generic version of prepare_hugepage_range
Date: Mon,  6 Aug 2018 17:57:08 +0000
Lines: 222
Approved: news@gmane.org
Message-ID: <20180806175711.24438-9-alex@ghiti.fr>
References: <20180806175711.24438-1-alex@ghiti.fr>
NNTP-Posting-Host: blaine.gmane.org
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NNTP-Posting-Date: Mon, 6 Aug 2018 18:04:27 +0000 (UTC)
Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel:2840736 gmane.linux.kernel.mm:201313 gmane.linux.ports.arm.kernel:667943 gmane.linux.ports.ia64:29053 gmane.linux.ports.mips.general:65915 gmane.linux.ports.parisc:28882 gmane.linux.ports.ppc64.devel:160973 gmane.linux.ports.sh.devel:57340 gmane.linux.ports.sparc:28192 gmane.linux.kernel.cross-arch:45602
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2840736>

arm, arm64, powerpc, sparc, x86 architectures use the same version of
prepare_hugepage_range, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb.h     | 11 -----------
 arch/arm64/include/asm/hugetlb.h   | 11 -----------
 arch/ia64/include/asm/hugetlb.h    |  1 +
 arch/mips/include/asm/hugetlb.h    |  1 +
 arch/parisc/include/asm/hugetlb.h  |  1 +
 arch/powerpc/include/asm/hugetlb.h | 15 ---------------
 arch/sh/include/asm/hugetlb.h      |  1 +
 arch/sparc/include/asm/hugetlb.h   | 16 ----------------
 arch/x86/include/asm/hugetlb.h     | 15 ---------------
 include/asm-generic/hugetlb.h      | 15 +++++++++++++++
 10 files changed, 19 insertions(+), 68 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 9ca14227eeb7..3fcef21ff2c2 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -33,17 +33,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int prepare_hugepage_range(struct file *file,
-					 unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 1fd64ebf0cd7..3e7f6e69b28d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -31,17 +31,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int prepare_hugepage_range(struct file *file,
-					 unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 82fe3d7a38d9..cbe296271030 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -9,6 +9,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len);
 
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index b3d6bb53ee6e..6ff2531cfb1d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -18,6 +18,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 					 unsigned long addr,
 					 unsigned long len)
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 5a102d7251e4..fb7e0fd858a3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -22,6 +22,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
  * If the arch doesn't supply something else, assume that hugepage
  * size aligned regions are ok without further preparation.
  */
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len)
 {
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 7123599089c6..69c14ecac133 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -117,21 +117,6 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 54f65094efe6..f1bbd255ee43 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -15,6 +15,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
  * If the arch doesn't supply something else, assume that hugepage
  * size aligned regions are ok without further preparation.
  */
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index f661362376e0..2101ea217f33 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -26,22 +26,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 3cd3a2c9840e..59c056adb3c9 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,21 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index cd9697672b79..6c0c8b0c71e0 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -87,4 +87,19 @@ static inline pte_t huge_pte_wrprotect(pte_t pte)
 }
 #endif
 
+#ifndef __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
+static inline int prepare_hugepage_range(struct file *file,
+		unsigned long addr, unsigned long len)
+{
+	struct hstate *h = hstate_file(file);
+
+	if (len & ~huge_page_mask(h))
+		return -EINVAL;
+	if (addr & ~huge_page_mask(h))
+		return -EINVAL;
+
+	return 0;
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:50 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v6 09/11] hugetlb: Introduce generic version of huge_ptep_set_wrprotect
Date: Mon,  6 Aug 2018 17:57:09 +0000
Lines: 226
Approved: news@gmane.org
Message-ID: <20180806175711.24438-10-alex@ghiti.fr>
References: <20180806175711.24438-1-alex@ghiti.fr>
NNTP-Posting-Host: blaine.gmane.org
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NNTP-Posting-Date: Mon, 6 Aug 2018 18:05:28 +0000 (UTC)
Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2840737>

arm, ia64, mips, powerpc, sh, x86 architectures use the same version
of huge_ptep_set_wrprotect, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h        | 6 ------
 arch/arm64/include/asm/hugetlb.h             | 1 +
 arch/ia64/include/asm/hugetlb.h              | 6 ------
 arch/mips/include/asm/hugetlb.h              | 6 ------
 arch/parisc/include/asm/hugetlb.h            | 1 +
 arch/powerpc/include/asm/book3s/32/pgtable.h | 6 ------
 arch/powerpc/include/asm/book3s/64/pgtable.h | 1 +
 arch/powerpc/include/asm/nohash/32/pgtable.h | 6 ------
 arch/powerpc/include/asm/nohash/64/pgtable.h | 1 +
 arch/sh/include/asm/hugetlb.h                | 6 ------
 arch/sparc/include/asm/hugetlb.h             | 1 +
 arch/x86/include/asm/hugetlb.h               | 6 ------
 include/asm-generic/hugetlb.h                | 8 ++++++++
 13 files changed, 13 insertions(+), 42 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index b897541520ef..8247cd6a2ac6 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3e7f6e69b28d..f4f69ae5466e 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -48,6 +48,7 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index cbe296271030..49d1f7949f3a 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 6ff2531cfb1d..3dcf5debf8c4 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -63,12 +63,6 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr,
 					     pte_t *ptep, pte_t pte,
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index fb7e0fd858a3..9c3950ca2974 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -39,6 +39,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
index 02f5acd7ccc4..fc1511ce33a4 100644
--- a/arch/powerpc/include/asm/book3s/32/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
@@ -228,12 +228,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 {
 	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
 }
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 
 static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
 					   pte_t *ptep, pte_t entry,
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 42aafba7a308..7d957f7c47cd 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -451,6 +451,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 		pte_update(mm, addr, ptep, 0, _PAGE_PRIVILEGED, 0);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index 7c46a98cc7f4..6cabbd04a6fa 100644
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -249,12 +249,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 {
 	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
 }
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 
 static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
 					   pte_t *ptep, pte_t entry,
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
index dd0c7236208f..69fbf7e9b4db 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
@@ -238,6 +238,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 	pte_update(mm, addr, ptep, _PAGE_RW, 0, 0);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index f1bbd255ee43..8df4004977b9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,12 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 2101ea217f33..c41754a113f3 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -32,6 +32,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 59c056adb3c9..a3f781f7a264 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,12 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 6c0c8b0c71e0..9b9039845278 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -102,4 +102,12 @@ static inline int prepare_hugepage_range(struct file *file,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
+static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
+		unsigned long addr, pte_t *ptep)
+{
+	ptep_set_wrprotect(mm, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:50 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v6 10/11] hugetlb: Introduce generic version of huge_ptep_set_access_flags
Date: Mon,  6 Aug 2018 17:57:10 +0000
Lines: 175
Approved: news@gmane.org
Message-ID: <20180806175711.24438-11-alex@ghiti.fr>
References: <20180806175711.24438-1-alex@ghiti.fr>
NNTP-Posting-Host: blaine.gmane.org
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X-Complaints-To: usenet@blaine.gmane.org
NNTP-Posting-Date: Mon, 6 Aug 2018 18:06:39 +0000 (UTC)
Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
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Xref: news.gmane.org gmane.linux.kernel:2840739 gmane.linux.kernel.mm:201315 gmane.linux.ports.arm.kernel:667945 gmane.linux.ports.ia64:29055 gmane.linux.ports.mips.general:65917 gmane.linux.ports.parisc:28884 gmane.linux.ports.ppc64.devel:160975 gmane.linux.ports.sh.devel:57343 gmane.linux.ports.sparc:28195 gmane.linux.kernel.cross-arch:45604
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2840739>

arm, ia64, sh, x86 architectures use the same version
of huge_ptep_set_access_flags, so move this generic implementation
into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 7 -------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 7 -------
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 7 -------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 7 -------
 include/asm-generic/hugetlb.h         | 9 +++++++++
 10 files changed, 14 insertions(+), 28 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 8247cd6a2ac6..54e4b097b1f5 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,11 +37,4 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 #endif /* _ASM_ARM_HUGETLB_3LEVEL_H */
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index f4f69ae5466e..80887abcef7f 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 			    pte_t *ptep, pte_t pte);
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 49d1f7949f3a..e9b42750fdf5 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,13 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 3dcf5debf8c4..120adc3b2ffd 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -63,6 +63,7 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr,
 					     pte_t *ptep, pte_t pte,
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 9c3950ca2974..165b4e5a6f32 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -43,6 +43,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty);
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 69c14ecac133..658bf7136a3c 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -137,6 +137,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 8df4004977b9..c87195ae0cfa 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,13 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index c41754a113f3..028a1465fbe7 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -40,6 +40,7 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index a3f781f7a264..574d42eb081e 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,13 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9b9039845278..f3c99a03ee83 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -110,4 +110,13 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
+static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+		unsigned long addr, pte_t *ptep,
+		pte_t pte, int dirty)
+{
+	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:50 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v6 11/11] hugetlb: Introduce generic version of huge_ptep_get
Date: Mon,  6 Aug 2018 17:57:11 +0000
Lines: 179
Approved: news@gmane.org
Message-ID: <20180806175711.24438-12-alex@ghiti.fr>
References: <20180806175711.24438-1-alex@ghiti.fr>
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Cc: Alexandre Ghiti <alex@ghiti.fr>
To: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org
Original-X-From: linux-kernel-owner@vger.kernel.org Mon Aug 06 20:07:40 2018
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Xref: news.gmane.org gmane.linux.kernel:2840740 gmane.linux.kernel.mm:201316 gmane.linux.ports.arm.kernel:667946 gmane.linux.ports.ia64:29056 gmane.linux.ports.mips.general:65918 gmane.linux.ports.parisc:28885 gmane.linux.ports.ppc64.devel:160976 gmane.linux.ports.sh.devel:57344 gmane.linux.ports.sparc:28196 gmane.linux.kernel.cross-arch:45605
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2840740>

ia64, mips, parisc, powerpc, sh, sparc, x86 architectures use the
same version of huge_ptep_get, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 1 +
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 5 -----
 arch/mips/include/asm/hugetlb.h       | 5 -----
 arch/parisc/include/asm/hugetlb.h     | 5 -----
 arch/powerpc/include/asm/hugetlb.h    | 5 -----
 arch/sh/include/asm/hugetlb.h         | 5 -----
 arch/sparc/include/asm/hugetlb.h      | 5 -----
 arch/x86/include/asm/hugetlb.h        | 5 -----
 include/asm-generic/hugetlb.h         | 7 +++++++
 10 files changed, 9 insertions(+), 35 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 54e4b097b1f5..0d9f3918fa7e 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -29,6 +29,7 @@
  * ptes.
  * (The valid bit is automatically cleared by set_pte_at for PROT_NONE ptes).
  */
+#define __HAVE_ARCH_HUGE_PTEP_GET
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	pte_t retval = *ptep;
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 80887abcef7f..fb6609875455 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -20,6 +20,7 @@
 
 #include <asm/page.h>
 
+#define __HAVE_ARCH_HUGE_PTEP_GET
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return READ_ONCE(*ptep);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index e9b42750fdf5..36cc0396b214 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,11 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 120adc3b2ffd..425bb6fc3bda 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -82,11 +82,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 	return changed;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 165b4e5a6f32..7cb595dcb7d7 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty);
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 658bf7136a3c..33a2d9e3ea9e 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -142,11 +142,6 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index c87195ae0cfa..6f025fe18146 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,11 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 028a1465fbe7..3963f80d1cb3 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -53,11 +53,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 	return changed;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 574d42eb081e..7469d321f072 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,11 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index f3c99a03ee83..71d7b77eea50 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -119,4 +119,11 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET
+static inline pte_t huge_ptep_get(pte_t *ptep)
+{
+	return *ptep;
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



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* Alexandre Ghiti <alex@ghiti.fr> wrote:

> [CC linux-mm for inclusion in -mm tree]                                          
>                                                                                  
> In order to reduce copy/paste of functions across architectures and then         
> make riscv hugetlb port (and future ports) simpler and smaller, this             
> patchset intends to factorize the numerous hugetlb primitives that are           
> defined across all the architectures.                                            
>                                                                                  
> Except for prepare_hugepage_range, this patchset moves the versions that         
> are just pass-through to standard pte primitives into                            
> asm-generic/hugetlb.h by using the same #ifdef semantic that can be              
> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.                            
>                                                                                  
> s390 architecture has not been tackled in this serie since it does not           
> use asm-generic/hugetlb.h at all.                                                
>                                                                                  
> This patchset has been compiled on all addressed architectures with              
> success (except for parisc, but the problem does not come from this              
> series).                                                                         
>                                                                                  
> v6:                                                                              
>   - Remove nohash/32 and book3s/32 powerpc specific implementations in
>     order to use the generic ones.                                                        
>   - Add all the Reviewed-by, Acked-by and Tested-by in the commits,              
>     thanks to everyone.                                                          
>                                                                                  
> v5:                                                                              
>   As suggested by Mike Kravetz, no need to move the #include                     
>   <asm-generic/hugetlb.h> for arm and x86 architectures, let it live at          
>   the top of the file.                                                           
>                                                                                  
> v4:                                                                              
>   Fix powerpc build error due to misplacing of #include                          
>   <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as              
>   pointed by Christophe Leroy.                                                   
>                                                                                  
> v1, v2, v3:                                                                      
>   Same version, just problems with email provider and misuse of                  
>   --batch-size option of git send-email
> 
> Alexandre Ghiti (11):
>   hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
>   hugetlb: Introduce generic version of hugetlb_free_pgd_range
>   hugetlb: Introduce generic version of set_huge_pte_at
>   hugetlb: Introduce generic version of huge_ptep_get_and_clear
>   hugetlb: Introduce generic version of huge_ptep_clear_flush
>   hugetlb: Introduce generic version of huge_pte_none
>   hugetlb: Introduce generic version of huge_pte_wrprotect
>   hugetlb: Introduce generic version of prepare_hugepage_range
>   hugetlb: Introduce generic version of huge_ptep_set_wrprotect
>   hugetlb: Introduce generic version of huge_ptep_set_access_flags
>   hugetlb: Introduce generic version of huge_ptep_get
> 
>  arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
>  arch/arm/include/asm/hugetlb.h               | 30 ----------
>  arch/arm64/include/asm/hugetlb.h             | 39 +++---------
>  arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
>  arch/mips/include/asm/hugetlb.h              | 40 +++----------
>  arch/parisc/include/asm/hugetlb.h            | 33 +++--------
>  arch/powerpc/include/asm/book3s/32/pgtable.h |  6 --
>  arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
>  arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
>  arch/powerpc/include/asm/nohash/32/pgtable.h |  6 --
>  arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
>  arch/sh/include/asm/hugetlb.h                | 54 ++---------------
>  arch/sparc/include/asm/hugetlb.h             | 40 +++----------
>  arch/x86/include/asm/hugetlb.h               | 69 ----------------------
>  include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
>  15 files changed, 135 insertions(+), 394 deletions(-)

The x86 bits look good to me (assuming it's all tested on all relevant architectures, etc.)

Acked-by: Ingo Molnar <mingo@kernel.org>

Thanks,

	Ingo


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Subject: Re: [PATCH] parisc: prefer _THIS_IP_ and _RET_IP_ statement expressions
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On Fri, Aug 3, 2018 at 3:34 PM Helge Deller <deller@gmx.de> wrote:
>
> On 03.08.2018 22:33, Nick Desaulniers wrote:
> > On Fri, Aug 3, 2018 at 12:09 PM John David Anglin <dave.anglin@bell.net> wrote:
> >>
> >> On 2018-08-03 2:11 PM, Nick Desaulniers wrote:
> >>> But the kernel uses the generic_THIS_IP_  *everywhere*, not parisc's
> >>> custom current_text_addr().  So if this did actually break unwinding,
> >>> you should have noticed by now.
> >> The unwind problem was noticed.
> >
> > So parisc is currently broken (doesn't unwind) due to the pervasive
> > use of _THIS_IP_ (generic C) throughout the kernel?
>
> I tested it on the 32bit kernel.
> The answer is: No. Unwinding works (with and without your patch).
>
> > If no, that implies this patch (generic C) causes no unwinding problems.
>
> correct.
>
> > If yes, that implies that the diff I posted later in this thread
> > (inline assembly) is preferable, and that parisc has bigger problems
> > (and probably needs to do rewrite the unwinding code to handle these
> > extra labels everywhere).
> >
> >> Patches were recently applied to gcc and binutils to try and fix it.
> >> The gcc patch moved
> >> branch tables to rodata so that the label at the head of the table
> >> wasn't in text.
> >>
> >> https://gcc.gnu.org/ml/gcc-patches/2018-07/msg01804.html
> >> https://sourceware.org/ml/binutils/2018-07/msg00474.html
> >>
> >> When I saw your suggested change, I realized there was another source of
> >> text labels
> >> that need linker relocations.
> >
> > Thank you for the links.
> >
> > On Fri, Aug 3, 2018 at 10:57 AM John David Anglin <dave.anglin@bell.net> wrote:
> >> The label breaks the unwind data, not the unwind code.  So, localizing
> >> the use of
> >> current_text_addr() to the parisc unwind code doesn't help.
> >
> > Have you confirmed that applying my patch breaks *the ability to
> > unwind correctly*?
>
> I tested your patch (on 32bit).
> Your patch does not break anything.
>
> > It looks like return_address() is used in
> > ftrace_return_address(), so I assume you can boot a kernel with my
> > patch applied, and CONFIG_FTRACE=y, then run:
> >
> > $ sudo trace-cmd record -p function date
> > $ trace-cmd report | grep date- | less
> >
> > and see if the stacks aren't unwound or look messed up.
>
> I faced issues with trace-cmd, but calling ftracing functions manually worked.
>
> So, your patch is basically OK and doesn't break anything.
> But I agree with Dave that Andrew, that THIS_IP is ugly.

I don't disagree, and other maintainers have remarked on _THIS_IP_
being ugly, but renaming it en masse is a tree wide change, which I'm
trying to avoid at the moment.

It sounds like we have a working patch? Are there 64b parisc machines
to test on, or can this get merged?
--
Thanks,
~Nick Desaulniers


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On 07.08.2018 20:11, Nick Desaulniers wrote:
> On Fri, Aug 3, 2018 at 3:34 PM Helge Deller <deller@gmx.de> wrote:
>> So, your patch is basically OK and doesn't break anything.
>> But I agree with Dave and Andrew, that THIS_IP is ugly.
> 
> I don't disagree, and other maintainers have remarked on _THIS_IP_
> being ugly, but renaming it en masse is a tree wide change, which I'm
> trying to avoid at the moment.

Understandable.

> It sounds like we have a working patch? Are there 64b parisc machines
> to test on, or can this get merged?

Go ahead and merge it.

In addition, somehow I'd prefer if there would be a way to add to include/linux/kernel.h:
+#if !defined(_THIS_IP_)
#define _THIS_IP_  ({ __label__ __here; __here: (unsigned long)&&__here; })
+#endif

That way it would somehow be possible to replace that label calulation by the
preferable inline assembly of current_text_address()...

Helge


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On Tue, Aug 7, 2018 at 1:30 PM Helge Deller <deller@gmx.de> wrote:
>
> On 07.08.2018 20:11, Nick Desaulniers wrote:
> > On Fri, Aug 3, 2018 at 3:34 PM Helge Deller <deller@gmx.de> wrote:
> >> So, your patch is basically OK and doesn't break anything.
> >> But I agree with Dave and Andrew, that THIS_IP is ugly.
> >
> > I don't disagree, and other maintainers have remarked on _THIS_IP_
> > being ugly, but renaming it en masse is a tree wide change, which I'm
> > trying to avoid at the moment.
>
> Understandable.
>
> > It sounds like we have a working patch? Are there 64b parisc machines
> > to test on, or can this get merged?
>
> Go ahead and merge it.

Thank you, but I was under the impression this would go up through the
parisc tree?
https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git/
right? Or is there a different tree/maintainer I should ask?

> In addition, somehow I'd prefer if there would be a way to add to include/linux/kernel.h:
> +#if !defined(_THIS_IP_)
> #define _THIS_IP_  ({ __label__ __here; __here: (unsigned long)&&__here; })
> +#endif
>
> That way it would somehow be possible to replace that label calulation by the
> preferable inline assembly of current_text_address()...

I'm asserting that there is no need within the entire kernel at the
moment to have inline assembly to get the instruction pointer.  If
there are no call sites of the inline assembly version, there is no
need to define per arch inline assembly versions when C (with GNU
extensions) will suffice.

And if in the future there are, either those call sites can have a
local implementation (as in the second diff I sent in this thread), or
some other change to _THIS_IP_ (as you propose) can be made.  But
until then...

YAGNI: "You Ain't Gonna Need It"

Once this patch and the other 3 outstanding ones are merged, we'll be
sending patches to delete all arch specific assembly implementations
as they will be dead code (no callers, kernel-wide).
-- 
Thanks,
~Nick Desaulniers


From - Thu Nov 08 21:41:50 2018
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To: "David S. Miller" <davem@davemloft.net>, netdev@vger.kernel.org,
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Hi all,

In preparation to enabling -Wimplicit-fallthrough, this patchset aims
to add some annotations in order to mark switch cases where we are
expecting to fall through.

Thanks

Gustavo A. R. Silva (33):
  8390: axnet_cs: Mark expected switch fall-through
  alteon: acenic: mark expected switch fall-through
  bnx2x: Mark expected switch fall-thoughs
  net: macb: Mark expected switch fall-through
  liquidio: mark expected switch fall-through
  cxgb4/l2t: Mark expected switch fall-through
  cxgb4/t4_hw: mark expected switch fall-throughs
  cxgb3/l2t: Mark expected switch fall-through
  net: thunderx: mark expected switch fall-through
  net: tulip_core: mark expected switch fall-through
  net: tulip: de4x5: mark expected switch fall-throughs
  be2net: Mark expected switch fall-through
  net: hns: Mark expected switch fall-through
  net: hns3: Mark expected switch fall-through
  i40e_main: mark expected switch fall-through
  i40e_txrx: mark expected switch fall-through
  net/mlx4/mcg: Mark expected switch fall-throughs
  net/mlx4/en_rx: Mark expected switch fall-throughs
  igb_main: Mark expected switch fall-throughs
  igb: e1000_82575: Mark expected switch fall-through
  igb: e1000_phy: Mark expected switch fall-through
  igbvf: netdev: Mark expected switch fall-through
  vxge: Mark expected switch fall-throughs
  net/mlx5e: Mark expected switch fall-throughs
  qed: qed_dev: Mark expected switch fall-throughs
  netxen_nic: Mark expected switch fall-throughs
  qede: qede_fp: Mark expected switch fall-through
  qlcnic: Mark expected switch fall-througs
  qlge: mark expected switch fall-through
  net: ethernet: sxgbe: mark expected switch fall-throughs
  net: sfc: falcon: mark expected switch fall-through
  net: tlan: Mark expected switch fall-through
  net: ethernet: ti: cpts: mark expected switch fall-through

 drivers/net/ethernet/8390/axnet_cs.c                    | 1 +
 drivers/net/ethernet/alteon/acenic.c                    | 1 +
 drivers/net/ethernet/broadcom/bnxt/bnxt.c               | 2 +-
 drivers/net/ethernet/cadence/macb_ptp.c                 | 1 +
 drivers/net/ethernet/cavium/liquidio/lio_main.c         | 1 +
 drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c     | 1 +
 drivers/net/ethernet/chelsio/cxgb3/l2t.c                | 1 +
 drivers/net/ethernet/chelsio/cxgb4/l2t.c                | 1 +
 drivers/net/ethernet/chelsio/cxgb4/t4_hw.c              | 3 +++
 drivers/net/ethernet/dec/tulip/de4x5.c                  | 6 ++++++
 drivers/net/ethernet/dec/tulip/tulip_core.c             | 1 +
 drivers/net/ethernet/emulex/benet/be_ethtool.c          | 1 +
 drivers/net/ethernet/hisilicon/hns/hns_ethtool.c        | 1 +
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c         | 1 +
 drivers/net/ethernet/intel/i40e/i40e_main.c             | 1 +
 drivers/net/ethernet/intel/i40e/i40e_txrx.c             | 3 ++-
 drivers/net/ethernet/intel/igb/e1000_82575.c            | 1 +
 drivers/net/ethernet/intel/igb/e1000_phy.c              | 1 +
 drivers/net/ethernet/intel/igb/igb_main.c               | 2 ++
 drivers/net/ethernet/intel/igbvf/netdev.c               | 1 +
 drivers/net/ethernet/mellanox/mlx4/en_rx.c              | 2 ++
 drivers/net/ethernet/mellanox/mlx4/mcg.c                | 2 ++
 drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c        | 2 ++
 drivers/net/ethernet/neterion/vxge/vxge-config.c        | 3 +++
 drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c | 3 ++-
 drivers/net/ethernet/qlogic/qed/qed_dev.c               | 4 ++--
 drivers/net/ethernet/qlogic/qede/qede_fp.c              | 2 ++
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c     | 3 ++-
 drivers/net/ethernet/qlogic/qlge/qlge_mpi.c             | 1 +
 drivers/net/ethernet/samsung/sxgbe/sxgbe_ethtool.c      | 2 ++
 drivers/net/ethernet/sfc/falcon/ethtool.c               | 1 +
 drivers/net/ethernet/ti/cpts.c                          | 1 +
 drivers/net/ethernet/ti/tlan.c                          | 1 +
 33 files changed, 52 insertions(+), 6 deletions(-)

-- 
2.7.4



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Subject: [PATCH 10/33] net: tulip_core: mark expected switch fall-through
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114782 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/net/ethernet/dec/tulip/tulip_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index 00d02a0..3e3e086 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -923,6 +923,7 @@ static int private_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
 			data->phy_id = 1;
 		else
 			return -ENODEV;
+		/* Fall through */
 
 	case SIOCGMIIREG:		/* Read MII PHY register. */
 		if (data->phy_id == 32 && (tp->flags & HAS_NWAY)) {
-- 
2.7.4



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Newsgroups: gmane.linux.network,gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH 11/33] net: tulip: de4x5: mark expected switch fall-throughs
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114784 ("Missing break in switch")
Addresses-Coverity-ID: 114785 ("Missing break in switch")
Addresses-Coverity-ID: 114786 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/net/ethernet/dec/tulip/de4x5.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index a31b4df..66535d1 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -3204,6 +3204,8 @@ srom_map_media(struct net_device *dev)
       case SROM_10BASETF:
 	if (!lp->params.fdx) return -1;
 	lp->fdx = true;
+	/* fall through */
+
       case SROM_10BASET:
 	if (lp->params.fdx && !lp->fdx) return -1;
 	if ((lp->chipset == DC21140) || ((lp->chipset & ~0x00ff) == DC2114x)) {
@@ -3224,6 +3226,8 @@ srom_map_media(struct net_device *dev)
       case SROM_100BASETF:
         if (!lp->params.fdx) return -1;
 	lp->fdx = true;
+	/* fall through */
+
       case SROM_100BASET:
 	if (lp->params.fdx && !lp->fdx) return -1;
 	lp->media = _100Mb;
@@ -3236,6 +3240,8 @@ srom_map_media(struct net_device *dev)
       case SROM_100BASEFF:
 	if (!lp->params.fdx) return -1;
 	lp->fdx = true;
+	/* fall through */
+
       case SROM_100BASEF:
 	if (lp->params.fdx && !lp->fdx) return -1;
 	lp->media = _100Mb;
-- 
2.7.4



From - Thu Nov 08 21:41:51 2018
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From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Tue, 7 Aug 2018 18:09:00 -0500

> In preparation to enabling -Wimplicit-fallthrough, this patchset aims
> to add some annotations in order to mark switch cases where we are
> expecting to fall through.

Ok, I went through all of these and they look good.

If any are not correct we can revert/fix.

Series applied, thanks.


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Subject: Re: [PATCH v6 00/11] hugetlb: Factorize hugetlb architecture
 primitives
Date: Wed, 8 Aug 2018 05:36:07 +0000
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To: Ingo Molnar <mingo@kernel.org>
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Thanks for your time,

Alex

Le 07/08/2018 à 09:54, Ingo Molnar a écrit :
> * Alexandre Ghiti <alex@ghiti.fr> wrote:
>
>> [CC linux-mm for inclusion in -mm tree]
>>                                                                                   
>> In order to reduce copy/paste of functions across architectures and then
>> make riscv hugetlb port (and future ports) simpler and smaller, this
>> patchset intends to factorize the numerous hugetlb primitives that are
>> defined across all the architectures.
>>                                                                                   
>> Except for prepare_hugepage_range, this patchset moves the versions that
>> are just pass-through to standard pte primitives into
>> asm-generic/hugetlb.h by using the same #ifdef semantic that can be
>> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.
>>                                                                                   
>> s390 architecture has not been tackled in this serie since it does not
>> use asm-generic/hugetlb.h at all.
>>                                                                                   
>> This patchset has been compiled on all addressed architectures with
>> success (except for parisc, but the problem does not come from this
>> series).
>>                                                                                   
>> v6:
>>    - Remove nohash/32 and book3s/32 powerpc specific implementations in
>>      order to use the generic ones.
>>    - Add all the Reviewed-by, Acked-by and Tested-by in the commits,
>>      thanks to everyone.
>>                                                                                   
>> v5:
>>    As suggested by Mike Kravetz, no need to move the #include
>>    <asm-generic/hugetlb.h> for arm and x86 architectures, let it live at
>>    the top of the file.
>>                                                                                   
>> v4:
>>    Fix powerpc build error due to misplacing of #include
>>    <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as
>>    pointed by Christophe Leroy.
>>                                                                                   
>> v1, v2, v3:
>>    Same version, just problems with email provider and misuse of
>>    --batch-size option of git send-email
>>
>> Alexandre Ghiti (11):
>>    hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
>>    hugetlb: Introduce generic version of hugetlb_free_pgd_range
>>    hugetlb: Introduce generic version of set_huge_pte_at
>>    hugetlb: Introduce generic version of huge_ptep_get_and_clear
>>    hugetlb: Introduce generic version of huge_ptep_clear_flush
>>    hugetlb: Introduce generic version of huge_pte_none
>>    hugetlb: Introduce generic version of huge_pte_wrprotect
>>    hugetlb: Introduce generic version of prepare_hugepage_range
>>    hugetlb: Introduce generic version of huge_ptep_set_wrprotect
>>    hugetlb: Introduce generic version of huge_ptep_set_access_flags
>>    hugetlb: Introduce generic version of huge_ptep_get
>>
>>   arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
>>   arch/arm/include/asm/hugetlb.h               | 30 ----------
>>   arch/arm64/include/asm/hugetlb.h             | 39 +++---------
>>   arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
>>   arch/mips/include/asm/hugetlb.h              | 40 +++----------
>>   arch/parisc/include/asm/hugetlb.h            | 33 +++--------
>>   arch/powerpc/include/asm/book3s/32/pgtable.h |  6 --
>>   arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
>>   arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
>>   arch/powerpc/include/asm/nohash/32/pgtable.h |  6 --
>>   arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
>>   arch/sh/include/asm/hugetlb.h                | 54 ++---------------
>>   arch/sparc/include/asm/hugetlb.h             | 40 +++----------
>>   arch/x86/include/asm/hugetlb.h               | 69 ----------------------
>>   include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
>>   15 files changed, 135 insertions(+), 394 deletions(-)
> The x86 bits look good to me (assuming it's all tested on all relevant architectures, etc.)
>
> Acked-by: Ingo Molnar <mingo@kernel.org>
>
> Thanks,
>
> 	Ingo


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On 8/7/18 7:59 PM, David Miller wrote:
> From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
> Date: Tue, 7 Aug 2018 18:09:00 -0500
> 
>> In preparation to enabling -Wimplicit-fallthrough, this patchset aims
>> to add some annotations in order to mark switch cases where we are
>> expecting to fall through.
> 
> Ok, I went through all of these and they look good.
> 
> If any are not correct we can revert/fix.
> 

Yep. If anything is reported, I'll take a look right away.

> Series applied, thanks.
> 

Thanks

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From: Helge Deller <deller@gmx.de>
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Hi Linus,

would you please pull two important patches for the parisc architecture for kernel 4.18 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.18-2

The first patch is trivial and fixes the kernel build if someone chooses to
build the generic 64bit defconfig. Alex Ghiti ran into that issue when he tried
to build a 4.18 kernel with his hugetlb patches on parisc64.

The patch from Dave adds missing memory barriers to the assembler unlock
sequences. Our hope is, that this should help us to fix the issues we rarely
still see with spinlocks.

Both patches had been in the for-next branch for a few days without any
reported issues and are tagged to be backported to all kernels above v4.0.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (1):
      parisc: Enable CONFIG_MLONGCALLS by default

John David Anglin (1):
      parisc: Define mb() and add memory barriers to assembler unlock sequences

 arch/parisc/Kconfig               |  2 +-
 arch/parisc/include/asm/barrier.h | 32 ++++++++++++++++++++++++++++++++
 arch/parisc/kernel/entry.S        |  2 ++
 arch/parisc/kernel/pacache.S      |  1 +
 arch/parisc/kernel/syscall.S      |  4 ++++
 5 files changed, 40 insertions(+), 1 deletion(-)
 create mode 100644 arch/parisc/include/asm/barrier.h


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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc architecture updates for kernel v4.19
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Xref: news.gmane.org gmane.linux.kernel:2845303 gmane.linux.ports.parisc:28897
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2845303>

Hi Linus,

please pull fixes and updates for the parisc architecture for kernel 4.19 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.19-1

Changes include:
- parisc now uses the generic dma_noncoherent_ops implementation, by Christoph Hellwig.
- further memory barrier and spinlock improvements, by John David Anglin.
- prepare removal of current_text_addr() functions, by Nick Desaulniers.
- improve kernel stack unwinding on parisc, by me.
- drop ENOTSUP which was defined on parisc only, by me.

Thanks,
Helge

----------------------------------------------------------------
Christoph Hellwig (3):
      parisc: merge pcx_dma_ops and pcxl_dma_ops
      parisc: always use flush_kernel_dcache_range for DMA cache maintainance
      parisc: use generic dma_noncoherent_ops

Helge Deller (3):
      parisc: Drop architecture-specific ENOTSUP define
      parisc: Add HAVE_REGS_AND_STACK_ACCESS_API feature
      parisc: Fix and improve kernel stack unwinding

John David Anglin (2):
      parisc: Remove ordered stores from syscall.S
      parisc: Remove unnecessary barriers from spinlock.h

Nick Desaulniers (1):
      parisc: prefer _THIS_IP_ and _RET_IP_ statement expressions

 arch/parisc/Kconfig                        |   5 +
 arch/parisc/include/asm/assembly.h         |   2 +
 arch/parisc/include/asm/dma-mapping.h      |   5 -
 arch/parisc/include/asm/linkage.h          |  17 ++-
 arch/parisc/include/asm/ptrace.h           |  11 ++
 arch/parisc/include/asm/spinlock.h         |   8 +-
 arch/parisc/include/asm/unwind.h           |   3 +
 arch/parisc/include/uapi/asm/errno.h       |   1 -
 arch/parisc/kernel/entry.S                 |  53 +++-----
 arch/parisc/kernel/pacache.S               | 125 ------------------
 arch/parisc/kernel/pci-dma.c               | 199 +++++------------------------
 arch/parisc/kernel/process.c               |   2 +-
 arch/parisc/kernel/ptrace.c                | 100 +++++++++++++++
 arch/parisc/kernel/real2.S                 |   6 -
 arch/parisc/kernel/setup.c                 |   8 +-
 arch/parisc/kernel/syscall.S               |  24 ++--
 arch/parisc/kernel/traps.c                 |   2 +-
 arch/parisc/kernel/unwind.c                |  93 ++++++++------
 arch/parisc/lib/lusercopy.S                |  21 ---
 arch/parisc/mm/init.c                      |  11 +-
 kernel/time/posix-timers.c                 |  13 +-
 tools/arch/parisc/include/uapi/asm/errno.h |   1 -
 22 files changed, 262 insertions(+), 448 deletions(-)


From - Thu Nov 08 21:41:51 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alex Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v6 00/11] hugetlb: Factorize hugetlb architecture
 primitives
Date: Mon, 13 Aug 2018 18:35:53 +0000
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Approved: news@gmane.org
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Hi everyone,

Does someone need anything more to be done regarding this series ?

Thanks,

Alex


On 08/06/2018 05:57 PM, Alexandre Ghiti wrote:
> [CC linux-mm for inclusion in -mm tree]
>                                                                                   
> In order to reduce copy/paste of functions across architectures and then
> make riscv hugetlb port (and future ports) simpler and smaller, this
> patchset intends to factorize the numerous hugetlb primitives that are
> defined across all the architectures.
>                                                                                   
> Except for prepare_hugepage_range, this patchset moves the versions that
> are just pass-through to standard pte primitives into
> asm-generic/hugetlb.h by using the same #ifdef semantic that can be
> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.
>                                                                                   
> s390 architecture has not been tackled in this serie since it does not
> use asm-generic/hugetlb.h at all.
>                                                                                   
> This patchset has been compiled on all addressed architectures with
> success (except for parisc, but the problem does not come from this
> series).
>                                                                                   
> v6:
>    - Remove nohash/32 and book3s/32 powerpc specific implementations in
>      order to use the generic ones.
>    - Add all the Reviewed-by, Acked-by and Tested-by in the commits,
>      thanks to everyone.
>                                                                                   
> v5:
>    As suggested by Mike Kravetz, no need to move the #include
>    <asm-generic/hugetlb.h> for arm and x86 architectures, let it live at
>    the top of the file.
>                                                                                   
> v4:
>    Fix powerpc build error due to misplacing of #include
>    <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as
>    pointed by Christophe Leroy.
>                                                                                   
> v1, v2, v3:
>    Same version, just problems with email provider and misuse of
>    --batch-size option of git send-email
>
> Alexandre Ghiti (11):
>    hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
>    hugetlb: Introduce generic version of hugetlb_free_pgd_range
>    hugetlb: Introduce generic version of set_huge_pte_at
>    hugetlb: Introduce generic version of huge_ptep_get_and_clear
>    hugetlb: Introduce generic version of huge_ptep_clear_flush
>    hugetlb: Introduce generic version of huge_pte_none
>    hugetlb: Introduce generic version of huge_pte_wrprotect
>    hugetlb: Introduce generic version of prepare_hugepage_range
>    hugetlb: Introduce generic version of huge_ptep_set_wrprotect
>    hugetlb: Introduce generic version of huge_ptep_set_access_flags
>    hugetlb: Introduce generic version of huge_ptep_get
>
>   arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
>   arch/arm/include/asm/hugetlb.h               | 30 ----------
>   arch/arm64/include/asm/hugetlb.h             | 39 +++---------
>   arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
>   arch/mips/include/asm/hugetlb.h              | 40 +++----------
>   arch/parisc/include/asm/hugetlb.h            | 33 +++--------
>   arch/powerpc/include/asm/book3s/32/pgtable.h |  6 --
>   arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
>   arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
>   arch/powerpc/include/asm/nohash/32/pgtable.h |  6 --
>   arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
>   arch/sh/include/asm/hugetlb.h                | 54 ++---------------
>   arch/sparc/include/asm/hugetlb.h             | 40 +++----------
>   arch/x86/include/asm/hugetlb.h               | 69 ----------------------
>   include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
>   15 files changed, 135 insertions(+), 394 deletions(-)
>



From - Thu Nov 08 21:41:51 2018
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X-Mozilla-Keys:                                                                                 
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v6 00/11] hugetlb: Factorize hugetlb architecture
 primitives
Date: Mon, 20 Aug 2018 08:45:10 +0200
Lines: 85
Approved: news@gmane.org
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Cc: linux-mm@kvack.org, Mike Kravetz <mike.kravetz@oracle.com>,
        linux@armlinux.org.uk, catalin.marinas@arm.com,
        will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
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        paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp,
        dalias@libc.org, davem@davemloft.net, tglx@linutronix.de,
        mingo@redhat.com, hpa@zytor.com, x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org
To: Michal Hocko <mhocko@kernel.org>
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Hi Michal,

This patchset got acked, tested and reviewed by quite a few people, and 
it has been suggested
that it should be included in -mm tree: could you tell me if something 
else needs to be done for
its inclusion ?

Thanks for your time,

Alex


On 08/06/2018 07:57 PM, Alexandre Ghiti wrote:
> [CC linux-mm for inclusion in -mm tree]
>                                                                                   
> In order to reduce copy/paste of functions across architectures and then
> make riscv hugetlb port (and future ports) simpler and smaller, this
> patchset intends to factorize the numerous hugetlb primitives that are
> defined across all the architectures.
>                                                                                   
> Except for prepare_hugepage_range, this patchset moves the versions that
> are just pass-through to standard pte primitives into
> asm-generic/hugetlb.h by using the same #ifdef semantic that can be
> found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.
>                                                                                   
> s390 architecture has not been tackled in this serie since it does not
> use asm-generic/hugetlb.h at all.
>                                                                                   
> This patchset has been compiled on all addressed architectures with
> success (except for parisc, but the problem does not come from this
> series).
>                                                                                   
> v6:
>    - Remove nohash/32 and book3s/32 powerpc specific implementations in
>      order to use the generic ones.
>    - Add all the Reviewed-by, Acked-by and Tested-by in the commits,
>      thanks to everyone.
>                                                                                   
> v5:
>    As suggested by Mike Kravetz, no need to move the #include
>    <asm-generic/hugetlb.h> for arm and x86 architectures, let it live at
>    the top of the file.
>                                                                                   
> v4:
>    Fix powerpc build error due to misplacing of #include
>    <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as
>    pointed by Christophe Leroy.
>                                                                                   
> v1, v2, v3:
>    Same version, just problems with email provider and misuse of
>    --batch-size option of git send-email
>
> Alexandre Ghiti (11):
>    hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
>    hugetlb: Introduce generic version of hugetlb_free_pgd_range
>    hugetlb: Introduce generic version of set_huge_pte_at
>    hugetlb: Introduce generic version of huge_ptep_get_and_clear
>    hugetlb: Introduce generic version of huge_ptep_clear_flush
>    hugetlb: Introduce generic version of huge_pte_none
>    hugetlb: Introduce generic version of huge_pte_wrprotect
>    hugetlb: Introduce generic version of prepare_hugepage_range
>    hugetlb: Introduce generic version of huge_ptep_set_wrprotect
>    hugetlb: Introduce generic version of huge_ptep_set_access_flags
>    hugetlb: Introduce generic version of huge_ptep_get
>
>   arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
>   arch/arm/include/asm/hugetlb.h               | 30 ----------
>   arch/arm64/include/asm/hugetlb.h             | 39 +++---------
>   arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
>   arch/mips/include/asm/hugetlb.h              | 40 +++----------
>   arch/parisc/include/asm/hugetlb.h            | 33 +++--------
>   arch/powerpc/include/asm/book3s/32/pgtable.h |  6 --
>   arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
>   arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
>   arch/powerpc/include/asm/nohash/32/pgtable.h |  6 --
>   arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
>   arch/sh/include/asm/hugetlb.h                | 54 ++---------------
>   arch/sparc/include/asm/hugetlb.h             | 40 +++----------
>   arch/x86/include/asm/hugetlb.h               | 69 ----------------------
>   include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
>   15 files changed, 135 insertions(+), 394 deletions(-)
>



From - Thu Nov 08 21:41:51 2018
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Subject: Re: [PATCH v6 00/11] hugetlb: Factorize hugetlb architecture
 primitives
Date: Mon, 20 Aug 2018 09:17:30 +0200
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To: Alexandre Ghiti <alex@ghiti.fr>
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On Mon 20-08-18 08:45:10, Alexandre Ghiti wrote:
> Hi Michal,
> 
> This patchset got acked, tested and reviewed by quite a few people, and it
> has been suggested
> that it should be included in -mm tree: could you tell me if something else
> needs to be done for
> its inclusion ?
> 
> Thanks for your time,

I didn't really get to look at the series but seeing an Ack from Mike
and arch maintainers should be good enough for it to go. This email
doesn't have Andrew Morton in the CC list so you should add him if you
want the series to land into the mm tree.
-- 
Michal Hocko
SUSE Labs


From - Thu Nov 08 21:41:51 2018
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Subject: Re: [PATCH v6 00/11] hugetlb: Factorize hugetlb architecture
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Date: Mon, 20 Aug 2018 09:36:35 +0200
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To: Michal Hocko <mhocko@kernel.org>
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Ok, my bad, sorry about that, I have just added Andrew as CC then.

Thank you,

Alex


On 08/20/2018 09:17 AM, Michal Hocko wrote:
> On Mon 20-08-18 08:45:10, Alexandre Ghiti wrote:
>> Hi Michal,
>>
>> This patchset got acked, tested and reviewed by quite a few people, and it
>> has been suggested
>> that it should be included in -mm tree: could you tell me if something else
>> needs to be done for
>> its inclusion ?
>>
>> Thanks for your time,
> I didn't really get to look at the series but seeing an Ack from Mike
> and arch maintainers should be good enough for it to go. This email
> doesn't have Andrew Morton in the CC list so you should add him if you
> want the series to land into the mm tree.



From - Thu Nov 08 21:41:51 2018
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4206>

Prefer _THIS_IP_ defined in linux/kernel.h.

Most definitions of current_text_addr were the same as _THIS_IP_, but
a few archs had inline assembly instead.

This patch removes the final call site of current_text_addr, making all
of the definitions dead code.

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
---
I suspect that current_text_addr predated GNU C extensions for statement
expressions and/or taking the address of a label, then the macro was
reimplemented for every new archs include/asm/processor.h, even though
there were very few call sites, and none required an assembly
implementation vs the C implementation.

I am sad to see a few neat arch specific ways of getting the ip/pc, but
we should prefer the higher level C in cases where assembly is not
required. And the definitions can always be found again in git history.

 arch/alpha/include/asm/processor.h      |  6 ------
 arch/arc/include/asm/processor.h        |  8 --------
 arch/arm/include/asm/processor.h        |  6 ------
 arch/arm64/include/asm/processor.h      |  7 -------
 arch/c6x/include/asm/processor.h        | 11 -----------
 arch/h8300/include/asm/processor.h      |  6 ------
 arch/hexagon/include/asm/processor.h    |  3 ---
 arch/ia64/include/asm/processor.h       |  6 ------
 arch/m68k/include/asm/processor.h       |  6 ------
 arch/microblaze/include/asm/processor.h | 12 ------------
 arch/mips/include/asm/processor.h       |  5 -----
 arch/nds32/include/asm/processor.h      |  6 ------
 arch/nios2/include/asm/processor.h      |  6 ------
 arch/openrisc/include/asm/processor.h   |  5 -----
 arch/parisc/include/asm/processor.h     | 11 -----------
 arch/powerpc/include/asm/processor.h    |  6 ------
 arch/riscv/include/asm/processor.h      |  6 ------
 arch/s390/include/asm/processor.h       |  6 ------
 arch/sh/include/asm/processor_32.h      |  6 ------
 arch/sh/include/asm/processor_64.h      | 15 ---------------
 arch/sparc/include/asm/processor_32.h   |  6 ------
 arch/sparc/include/asm/processor_64.h   |  6 ------
 arch/unicore32/include/asm/processor.h  |  6 ------
 arch/x86/include/asm/kexec.h            |  3 ++-
 arch/x86/include/asm/processor.h        | 12 ------------
 arch/x86/um/asm/processor_32.h          |  8 --------
 arch/x86/um/asm/processor_64.h          |  3 ---
 arch/xtensa/include/asm/processor.h     |  8 --------
 28 files changed, 2 insertions(+), 193 deletions(-)

diff --git a/arch/alpha/include/asm/processor.h b/arch/alpha/include/asm/processor.h
index cb05d045efe3..6100431da07a 100644
--- a/arch/alpha/include/asm/processor.h
+++ b/arch/alpha/include/asm/processor.h
@@ -10,12 +10,6 @@
 
 #include <linux/personality.h>	/* for ADDR_LIMIT_32BIT */
 
-/*
- * Returns current instruction pointer ("program counter").
- */
-#define current_text_addr() \
-  ({ void *__pc; __asm__ ("br %0,.+4" : "=r"(__pc)); __pc; })
-
 /*
  * We have a 42-bit user address space: 4TB user VM...
  */
diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h
index 8ee41e988169..10346d6cf926 100644
--- a/arch/arc/include/asm/processor.h
+++ b/arch/arc/include/asm/processor.h
@@ -98,14 +98,6 @@ extern void start_thread(struct pt_regs * regs, unsigned long pc,
 
 extern unsigned int get_wchan(struct task_struct *p);
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- * Should the PC register be read instead ? This macro does not seem to
- * be used in many places so this wont be all that bad.
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l; })
-
 #endif /* !__ASSEMBLY__ */
 
 /*
diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index 1bf65b47808a..120f4c9bbfde 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -11,12 +11,6 @@
 #ifndef __ASM_ARM_PROCESSOR_H
 #define __ASM_ARM_PROCESSOR_H
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l;})
-
 #ifdef __KERNEL__
 
 #include <asm/hw_breakpoint.h>
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index 79657ad91397..966214f473b4 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -25,13 +25,6 @@
 #define USER_DS		(TASK_SIZE_64 - 1)
 
 #ifndef __ASSEMBLY__
-
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l;})
-
 #ifdef __KERNEL__
 
 #include <linux/build_bug.h>
diff --git a/arch/c6x/include/asm/processor.h b/arch/c6x/include/asm/processor.h
index 8f7cce829f8e..a8581f5b27f6 100644
--- a/arch/c6x/include/asm/processor.h
+++ b/arch/c6x/include/asm/processor.h
@@ -17,17 +17,6 @@
 #include <asm/page.h>
 #include <asm/current.h>
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr()			\
-({						\
-	void *__pc;				\
-	asm("mvc .S2 pce1,%0\n" : "=b"(__pc));	\
-	__pc;					\
-})
-
 /*
  * User space process size. This is mostly meaningless for NOMMU
  * but some C6X processors may have RAM addresses up to 0xFFFFFFFF.
diff --git a/arch/h8300/include/asm/processor.h b/arch/h8300/include/asm/processor.h
index 985346393e4a..a060b41b2d31 100644
--- a/arch/h8300/include/asm/processor.h
+++ b/arch/h8300/include/asm/processor.h
@@ -12,12 +12,6 @@
 #ifndef __ASM_H8300_PROCESSOR_H
 #define __ASM_H8300_PROCESSOR_H
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l; })
-
 #include <linux/compiler.h>
 #include <asm/segment.h>
 #include <asm/ptrace.h>
diff --git a/arch/hexagon/include/asm/processor.h b/arch/hexagon/include/asm/processor.h
index ce67940860a5..227bcb9cfdac 100644
--- a/arch/hexagon/include/asm/processor.h
+++ b/arch/hexagon/include/asm/processor.h
@@ -27,9 +27,6 @@
 #include <asm/registers.h>
 #include <asm/hexagon_vm.h>
 
-/*  must be a macro  */
-#define current_text_addr() ({ __label__ _l; _l: &&_l; })
-
 /*  task_struct, defined elsewhere, is the "process descriptor" */
 struct task_struct;
 
diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h
index 10061ccf0440..c91ef98ed6bf 100644
--- a/arch/ia64/include/asm/processor.h
+++ b/arch/ia64/include/asm/processor.h
@@ -602,12 +602,6 @@ ia64_set_unat (__u64 *unat, void *spill_addr, unsigned long nat)
 	*unat = (*unat & ~mask) | (nat << bit);
 }
 
-/*
- * Get the current instruction/program counter value.
- */
-#define current_text_addr() \
-	({ void *_pc; _pc = (void *)ia64_getreg(_IA64_REG_IP); _pc; })
-
 static inline __u64
 ia64_get_ivr (void)
 {
diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h
index 464e9f5f50ee..3750819ac5a1 100644
--- a/arch/m68k/include/asm/processor.h
+++ b/arch/m68k/include/asm/processor.h
@@ -8,12 +8,6 @@
 #ifndef __ASM_M68K_PROCESSOR_H
 #define __ASM_M68K_PROCESSOR_H
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l;})
-
 #include <linux/thread_info.h>
 #include <asm/segment.h>
 #include <asm/fpu.h>
diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h
index 330d556860ba..66b537b8d138 100644
--- a/arch/microblaze/include/asm/processor.h
+++ b/arch/microblaze/include/asm/processor.h
@@ -45,12 +45,6 @@ extern void ret_from_kernel_thread(void);
  */
 # define TASK_SIZE	(0x81000000 - 0x80000000)
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-# define current_text_addr() ({ __label__ _l; _l: &&_l; })
-
 /*
  * This decides where the kernel will search for a free chunk of vm
  * space during mmap's. We won't be using it
@@ -92,12 +86,6 @@ extern unsigned long get_wchan(struct task_struct *p);
 
 #  ifndef __ASSEMBLY__
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#  define current_text_addr()	({ __label__ _l; _l: &&_l; })
-
 /* If you change this, you must change the associated assembly-languages
  * constants defined below, THREAD_*.
  */
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index b2fa62922d88..f08417f8772e 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -22,11 +22,6 @@
 #include <asm/mipsregs.h>
 #include <asm/prefetch.h>
 
-/*
- * Return current * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l;})
-
 /*
  * System setup and hardware flags..
  */
diff --git a/arch/nds32/include/asm/processor.h b/arch/nds32/include/asm/processor.h
index 9c83caf4269f..c2660f566bac 100644
--- a/arch/nds32/include/asm/processor.h
+++ b/arch/nds32/include/asm/processor.h
@@ -4,12 +4,6 @@
 #ifndef __ASM_NDS32_PROCESSOR_H
 #define __ASM_NDS32_PROCESSOR_H
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l;})
-
 #ifdef __KERNEL__
 
 #include <asm/ptrace.h>
diff --git a/arch/nios2/include/asm/processor.h b/arch/nios2/include/asm/processor.h
index 4944e2e1d8b0..94bcb86f679f 100644
--- a/arch/nios2/include/asm/processor.h
+++ b/arch/nios2/include/asm/processor.h
@@ -38,12 +38,6 @@
 #define KUSER_SIZE		(PAGE_SIZE)
 #ifndef __ASSEMBLY__
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l; })
-
 # define TASK_SIZE		0x7FFF0000UL
 # define TASK_UNMAPPED_BASE	(PAGE_ALIGN(TASK_SIZE / 3))
 
diff --git a/arch/openrisc/include/asm/processor.h b/arch/openrisc/include/asm/processor.h
index af31a9fe736a..351d3aed7a06 100644
--- a/arch/openrisc/include/asm/processor.h
+++ b/arch/openrisc/include/asm/processor.h
@@ -30,11 +30,6 @@
 		   | SPR_SR_DCE | SPR_SR_SM)
 #define USER_SR   (SPR_SR_DME | SPR_SR_IME | SPR_SR_ICE \
 		   | SPR_SR_DCE | SPR_SR_IEE | SPR_SR_TEE)
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l; })
 
 /*
  * User space process size. This is hardcoded into a few places,
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 2dbe5580a1a4..0d7f64ef9c7d 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -20,17 +20,6 @@
 #include <asm/percpu.h>
 #endif /* __ASSEMBLY__ */
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#ifdef CONFIG_PA20
-#define current_ia(x)	__asm__("mfia %0" : "=r"(x))
-#else /* mfia added in pa2.0 */
-#define current_ia(x)	__asm__("blr 0,%0\n\tnop" : "=r"(x))
-#endif
-#define current_text_addr() ({ void *pc; current_ia(pc); pc; })
-
 #define HAVE_ARCH_PICK_MMAP_LAYOUT
 
 #define TASK_SIZE_OF(tsk)       ((tsk)->thread.task_size)
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index 52fadded5c1e..1fff74df06e6 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -67,12 +67,6 @@ extern int _chrp_type;
 
 #endif /* defined(__KERNEL__) && defined(CONFIG_PPC32) */
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l;})
-
 /* Macros for adjusting thread priority (hardware multi-threading) */
 #define HMT_very_low()   asm volatile("or 31,31,31   # very low priority")
 #define HMT_low()	 asm volatile("or 1,1,1	     # low priority")
diff --git a/arch/riscv/include/asm/processor.h b/arch/riscv/include/asm/processor.h
index 3fe4af8147d2..020e35947060 100644
--- a/arch/riscv/include/asm/processor.h
+++ b/arch/riscv/include/asm/processor.h
@@ -33,12 +33,6 @@
 struct task_struct;
 struct pt_regs;
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr()	({ __label__ _l; _l: &&_l; })
-
 /* CPU-specific state of a task */
 struct thread_struct {
 	/* Callee-saved registers */
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 7f2953c15c37..f8028d37bb18 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -73,12 +73,6 @@ static inline int test_cpu_flag_of(int flag, int cpu)
 
 #define arch_needs_cpu() test_cpu_flag(CIF_NOHZ_DELAY)
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ void *pc; asm("basr %0,0" : "=a" (pc)); pc; })
-
 static inline void get_cpu_id(struct cpuid *ptr)
 {
 	asm volatile("stidp %0" : "=Q" (*ptr));
diff --git a/arch/sh/include/asm/processor_32.h b/arch/sh/include/asm/processor_32.h
index 95100d8a0b7b..0e0ecc0132e3 100644
--- a/arch/sh/include/asm/processor_32.h
+++ b/arch/sh/include/asm/processor_32.h
@@ -16,12 +16,6 @@
 #include <asm/types.h>
 #include <asm/hw_breakpoint.h>
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ void *pc; __asm__("mova	1f, %0\n.align 2\n1:":"=z" (pc)); pc; })
-
 /* Core Processor Version Register */
 #define CCN_PVR		0xff000030
 #define CCN_CVR		0xff000040
diff --git a/arch/sh/include/asm/processor_64.h b/arch/sh/include/asm/processor_64.h
index 777a16318aff..f3d7075648d0 100644
--- a/arch/sh/include/asm/processor_64.h
+++ b/arch/sh/include/asm/processor_64.h
@@ -19,21 +19,6 @@
 #include <asm/types.h>
 #include <cpu/registers.h>
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ \
-void *pc; \
-unsigned long long __dummy = 0; \
-__asm__("gettr	tr0, %1\n\t" \
-	"pta	4, tr0\n\t" \
-	"gettr	tr0, %0\n\t" \
-	"ptabs	%1, tr0\n\t"	\
-	:"=r" (pc), "=r" (__dummy) \
-	: "1" (__dummy)); \
-pc; })
-
 #endif
 
 /*
diff --git a/arch/sparc/include/asm/processor_32.h b/arch/sparc/include/asm/processor_32.h
index 192493c257fa..3c4bc2189092 100644
--- a/arch/sparc/include/asm/processor_32.h
+++ b/arch/sparc/include/asm/processor_32.h
@@ -7,12 +7,6 @@
 #ifndef __ASM_SPARC_PROCESSOR_H
 #define __ASM_SPARC_PROCESSOR_H
 
-/*
- * Sparc32 implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ void *pc; __asm__("sethi %%hi(1f), %0; or %0, %%lo(1f), %0;\n1:" : "=r" (pc)); pc; })
-
 #include <asm/psr.h>
 #include <asm/ptrace.h>
 #include <asm/head.h>
diff --git a/arch/sparc/include/asm/processor_64.h b/arch/sparc/include/asm/processor_64.h
index aac23d4a4ddd..5cf145f18f36 100644
--- a/arch/sparc/include/asm/processor_64.h
+++ b/arch/sparc/include/asm/processor_64.h
@@ -8,12 +8,6 @@
 #ifndef __ASM_SPARC64_PROCESSOR_H
 #define __ASM_SPARC64_PROCESSOR_H
 
-/*
- * Sparc64 implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ void *pc; __asm__("rd %%pc, %0" : "=r" (pc)); pc; })
-
 #include <asm/asi.h>
 #include <asm/pstate.h>
 #include <asm/ptrace.h>
diff --git a/arch/unicore32/include/asm/processor.h b/arch/unicore32/include/asm/processor.h
index 4eaa42167667..b772ed1c0f25 100644
--- a/arch/unicore32/include/asm/processor.h
+++ b/arch/unicore32/include/asm/processor.h
@@ -13,12 +13,6 @@
 #ifndef __UNICORE_PROCESSOR_H__
 #define __UNICORE_PROCESSOR_H__
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l; })
-
 #ifdef __KERNEL__
 
 #include <asm/ptrace.h>
diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h
index f327236f0fa7..86924d594ecd 100644
--- a/arch/x86/include/asm/kexec.h
+++ b/arch/x86/include/asm/kexec.h
@@ -21,6 +21,7 @@
 #ifndef __ASSEMBLY__
 
 #include <linux/string.h>
+#include <linux/kernel.h>
 
 #include <asm/page.h>
 #include <asm/ptrace.h>
@@ -132,7 +133,7 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
 		asm volatile("movl %%cs, %%eax;" :"=a"(newregs->cs));
 		asm volatile("pushfq; popq %0" :"=m"(newregs->flags));
 #endif
-		newregs->ip = (unsigned long)current_text_addr();
+		newregs->ip = _THIS_IP_;
 	}
 }
 
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 682286aca881..20080b303605 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -42,18 +42,6 @@ struct vm86;
 #define NET_IP_ALIGN	0
 
 #define HBP_NUM 4
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-static inline void *current_text_addr(void)
-{
-	void *pc;
-
-	asm volatile("mov $1f, %0; 1:":"=r" (pc));
-
-	return pc;
-}
 
 /*
  * These alignment constraints are for performance in the vSMP case,
diff --git a/arch/x86/um/asm/processor_32.h b/arch/x86/um/asm/processor_32.h
index c112de81c9e1..5fb1b8449adf 100644
--- a/arch/x86/um/asm/processor_32.h
+++ b/arch/x86/um/asm/processor_32.h
@@ -47,14 +47,6 @@ static inline void arch_copy_thread(struct arch_thread *from,
         memcpy(&to->tls_array, &from->tls_array, sizeof(from->tls_array));
 }
 
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter"). Stolen
- * from asm-i386/processor.h
- */
-#define current_text_addr() \
-	({ void *pc; __asm__("movl $1f,%0\n1:":"=g" (pc)); pc; })
-
 #define current_sp() ({ void *sp; __asm__("movl %%esp, %0" : "=r" (sp) : ); sp; })
 #define current_bp() ({ unsigned long bp; __asm__("movl %%ebp, %0" : "=r" (bp) : ); bp; })
 
diff --git a/arch/x86/um/asm/processor_64.h b/arch/x86/um/asm/processor_64.h
index c3be85205a65..1ef9c21877bc 100644
--- a/arch/x86/um/asm/processor_64.h
+++ b/arch/x86/um/asm/processor_64.h
@@ -31,9 +31,6 @@ static inline void arch_copy_thread(struct arch_thread *from,
 	to->fs = from->fs;
 }
 
-#define current_text_addr() \
-	({ void *pc; __asm__("movq $1f,%0\n1:":"=g" (pc)); pc; })
-
 #define current_sp() ({ void *sp; __asm__("movq %%rsp, %0" : "=r" (sp) : ); sp; })
 #define current_bp() ({ unsigned long bp; __asm__("movq %%rbp, %0" : "=r" (bp) : ); bp; })
 
diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h
index 5b0027d4ecc0..68891c992105 100644
--- a/arch/xtensa/include/asm/processor.h
+++ b/arch/xtensa/include/asm/processor.h
@@ -153,14 +153,6 @@ struct thread_struct {
 	int align[0] __attribute__ ((aligned(16)));
 };
 
-
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr()  ({ __label__ _l; _l: &&_l;})
-
-
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
  */
-- 
2.18.0.865.gffc8e1a3cd6-goog

From - Thu Nov 08 21:41:51 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [GIT PULL] parisc fixes and updates for kernel v4.19
Date: Wed, 22 Aug 2018 21:35:17 +0200
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Xref: news.gmane.org gmane.linux.kernel:2850915 gmane.linux.ports.parisc:28903
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Hi Linus,

please pull the second round of fixes and updates in this merge window
for the parisc architecture for kernel 4.19 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.19-2

Changes:
- fix boot failure of 64-bit kernel. It got broken by the unwind
  optimization commit in merge window.
- fix 64-bit userspace support (static 64-bit applications only, e.g. we
  don't yet have 64-bit userspace support in glibc).
- consolidate unwind initialization code.
- add machine model description to stack trace.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (6):
      parisc: Restore possibility to execute 64-bit applications
      parisc: Fix ptraced 64-bit applications to call 64-bit syscalls
      parisc: Update comments in syscall.S regarding wide userland
      parisc: Consolidate unwind initialization calls
      parisc: Fix boot failure of 64-bit kernel
      parisc: Add hardware description to stack traces

 arch/parisc/include/asm/elf.h       |  9 +++--
 arch/parisc/include/asm/linkage.h   |  9 -----
 arch/parisc/include/asm/processor.h |  6 +--
 arch/parisc/include/asm/traps.h     |  4 +-
 arch/parisc/include/asm/unwind.h    |  6 ++-
 arch/parisc/kernel/entry.S          | 79 ++++++++++++++++++-------------------
 arch/parisc/kernel/processor.c      |  2 +
 arch/parisc/kernel/stacktrace.c     | 15 +------
 arch/parisc/kernel/sys_parisc.c     |  5 ---
 arch/parisc/kernel/syscall.S        | 35 +++++++++-------
 arch/parisc/kernel/traps.c          | 37 +++--------------
 arch/parisc/kernel/unwind.c         | 43 ++++++++++++++------
 12 files changed, 113 insertions(+), 137 deletions(-)


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] treewide: remove current_text_addr
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Cc: Nicolas Pitre <nicolas.pitre@linaro.org>, linux-mips@linux-mips.org,
 linux-sh@vger.kernel.org, Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Will Deacon <will.deacon@arm.com>, Paul Mackerras <paulus@samba.org>,
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To: Nick Desaulniers <ndesaulniers@google.com>,
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On 21.08.2018 22:28, Nick Desaulniers wrote:
> Prefer _THIS_IP_ defined in linux/kernel.h.
> 
> Most definitions of current_text_addr were the same as _THIS_IP_, but
> a few archs had inline assembly instead.
> 
> This patch removes the final call site of current_text_addr, making all
> of the definitions dead code.
> 
> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
> ---
> I suspect that current_text_addr predated GNU C extensions for statement
> expressions and/or taking the address of a label, then the macro was
> reimplemented for every new archs include/asm/processor.h, even though
> there were very few call sites, and none required an assembly
> implementation vs the C implementation.
> 
> I am sad to see a few neat arch specific ways of getting the ip/pc, but
> we should prefer the higher level C in cases where assembly is not
> required. And the definitions can always be found again in git history.

Currently alpha, s390, sparc, sh, c6x, ia64 and parisc provide an
inline assembly function to get the current instruction pointer. 
As mentioned in an earlier thread, I personally would *prefer* if 
_THIS_IP_ would use those inline assembly instructions on those
architectures instead of the (currently used) higher C-level
implementation.

Helge


>  arch/alpha/include/asm/processor.h      |  6 ------
>  arch/arc/include/asm/processor.h        |  8 --------
>  arch/arm/include/asm/processor.h        |  6 ------
>  arch/arm64/include/asm/processor.h      |  7 -------
>  arch/c6x/include/asm/processor.h        | 11 -----------
>  arch/h8300/include/asm/processor.h      |  6 ------
>  arch/hexagon/include/asm/processor.h    |  3 ---
>  arch/ia64/include/asm/processor.h       |  6 ------
>  arch/m68k/include/asm/processor.h       |  6 ------
>  arch/microblaze/include/asm/processor.h | 12 ------------
>  arch/mips/include/asm/processor.h       |  5 -----
>  arch/nds32/include/asm/processor.h      |  6 ------
>  arch/nios2/include/asm/processor.h      |  6 ------
>  arch/openrisc/include/asm/processor.h   |  5 -----
>  arch/parisc/include/asm/processor.h     | 11 -----------
>  arch/powerpc/include/asm/processor.h    |  6 ------
>  arch/riscv/include/asm/processor.h      |  6 ------
>  arch/s390/include/asm/processor.h       |  6 ------
>  arch/sh/include/asm/processor_32.h      |  6 ------
>  arch/sh/include/asm/processor_64.h      | 15 ---------------
>  arch/sparc/include/asm/processor_32.h   |  6 ------
>  arch/sparc/include/asm/processor_64.h   |  6 ------
>  arch/unicore32/include/asm/processor.h  |  6 ------
>  arch/x86/include/asm/kexec.h            |  3 ++-
>  arch/x86/include/asm/processor.h        | 12 ------------
>  arch/x86/um/asm/processor_32.h          |  8 --------
>  arch/x86/um/asm/processor_64.h          |  3 ---
>  arch/xtensa/include/asm/processor.h     |  8 --------
>  28 files changed, 2 insertions(+), 193 deletions(-)
> 
> diff --git a/arch/alpha/include/asm/processor.h b/arch/alpha/include/asm/processor.h
> index cb05d045efe3..6100431da07a 100644
> --- a/arch/alpha/include/asm/processor.h
> +++ b/arch/alpha/include/asm/processor.h
> @@ -10,12 +10,6 @@
>  
>  #include <linux/personality.h>	/* for ADDR_LIMIT_32BIT */
>  
> -/*
> - * Returns current instruction pointer ("program counter").
> - */
> -#define current_text_addr() \
> -  ({ void *__pc; __asm__ ("br %0,.+4" : "=r"(__pc)); __pc; })
> -
>  /*
>   * We have a 42-bit user address space: 4TB user VM...
>   */
> diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h
> index 8ee41e988169..10346d6cf926 100644
> --- a/arch/arc/include/asm/processor.h
> +++ b/arch/arc/include/asm/processor.h
> @@ -98,14 +98,6 @@ extern void start_thread(struct pt_regs * regs, unsigned long pc,
>  
>  extern unsigned int get_wchan(struct task_struct *p);
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - * Should the PC register be read instead ? This macro does not seem to
> - * be used in many places so this wont be all that bad.
> - */
> -#define current_text_addr() ({ __label__ _l; _l: &&_l; })
> -
>  #endif /* !__ASSEMBLY__ */
>  
>  /*
> diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
> index 1bf65b47808a..120f4c9bbfde 100644
> --- a/arch/arm/include/asm/processor.h
> +++ b/arch/arm/include/asm/processor.h
> @@ -11,12 +11,6 @@
>  #ifndef __ASM_ARM_PROCESSOR_H
>  #define __ASM_ARM_PROCESSOR_H
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ __label__ _l; _l: &&_l;})
> -
>  #ifdef __KERNEL__
>  
>  #include <asm/hw_breakpoint.h>
> diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
> index 79657ad91397..966214f473b4 100644
> --- a/arch/arm64/include/asm/processor.h
> +++ b/arch/arm64/include/asm/processor.h
> @@ -25,13 +25,6 @@
>  #define USER_DS		(TASK_SIZE_64 - 1)
>  
>  #ifndef __ASSEMBLY__
> -
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ __label__ _l; _l: &&_l;})
> -
>  #ifdef __KERNEL__
>  
>  #include <linux/build_bug.h>
> diff --git a/arch/c6x/include/asm/processor.h b/arch/c6x/include/asm/processor.h
> index 8f7cce829f8e..a8581f5b27f6 100644
> --- a/arch/c6x/include/asm/processor.h
> +++ b/arch/c6x/include/asm/processor.h
> @@ -17,17 +17,6 @@
>  #include <asm/page.h>
>  #include <asm/current.h>
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr()			\
> -({						\
> -	void *__pc;				\
> -	asm("mvc .S2 pce1,%0\n" : "=b"(__pc));	\
> -	__pc;					\
> -})
> -
>  /*
>   * User space process size. This is mostly meaningless for NOMMU
>   * but some C6X processors may have RAM addresses up to 0xFFFFFFFF.
> diff --git a/arch/h8300/include/asm/processor.h b/arch/h8300/include/asm/processor.h
> index 985346393e4a..a060b41b2d31 100644
> --- a/arch/h8300/include/asm/processor.h
> +++ b/arch/h8300/include/asm/processor.h
> @@ -12,12 +12,6 @@
>  #ifndef __ASM_H8300_PROCESSOR_H
>  #define __ASM_H8300_PROCESSOR_H
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ __label__ _l; _l: &&_l; })
> -
>  #include <linux/compiler.h>
>  #include <asm/segment.h>
>  #include <asm/ptrace.h>
> diff --git a/arch/hexagon/include/asm/processor.h b/arch/hexagon/include/asm/processor.h
> index ce67940860a5..227bcb9cfdac 100644
> --- a/arch/hexagon/include/asm/processor.h
> +++ b/arch/hexagon/include/asm/processor.h
> @@ -27,9 +27,6 @@
>  #include <asm/registers.h>
>  #include <asm/hexagon_vm.h>
>  
> -/*  must be a macro  */
> -#define current_text_addr() ({ __label__ _l; _l: &&_l; })
> -
>  /*  task_struct, defined elsewhere, is the "process descriptor" */
>  struct task_struct;
>  
> diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h
> index 10061ccf0440..c91ef98ed6bf 100644
> --- a/arch/ia64/include/asm/processor.h
> +++ b/arch/ia64/include/asm/processor.h
> @@ -602,12 +602,6 @@ ia64_set_unat (__u64 *unat, void *spill_addr, unsigned long nat)
>  	*unat = (*unat & ~mask) | (nat << bit);
>  }
>  
> -/*
> - * Get the current instruction/program counter value.
> - */
> -#define current_text_addr() \
> -	({ void *_pc; _pc = (void *)ia64_getreg(_IA64_REG_IP); _pc; })
> -
>  static inline __u64
>  ia64_get_ivr (void)
>  {
> diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h
> index 464e9f5f50ee..3750819ac5a1 100644
> --- a/arch/m68k/include/asm/processor.h
> +++ b/arch/m68k/include/asm/processor.h
> @@ -8,12 +8,6 @@
>  #ifndef __ASM_M68K_PROCESSOR_H
>  #define __ASM_M68K_PROCESSOR_H
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ __label__ _l; _l: &&_l;})
> -
>  #include <linux/thread_info.h>
>  #include <asm/segment.h>
>  #include <asm/fpu.h>
> diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h
> index 330d556860ba..66b537b8d138 100644
> --- a/arch/microblaze/include/asm/processor.h
> +++ b/arch/microblaze/include/asm/processor.h
> @@ -45,12 +45,6 @@ extern void ret_from_kernel_thread(void);
>   */
>  # define TASK_SIZE	(0x81000000 - 0x80000000)
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -# define current_text_addr() ({ __label__ _l; _l: &&_l; })
> -
>  /*
>   * This decides where the kernel will search for a free chunk of vm
>   * space during mmap's. We won't be using it
> @@ -92,12 +86,6 @@ extern unsigned long get_wchan(struct task_struct *p);
>  
>  #  ifndef __ASSEMBLY__
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#  define current_text_addr()	({ __label__ _l; _l: &&_l; })
> -
>  /* If you change this, you must change the associated assembly-languages
>   * constants defined below, THREAD_*.
>   */
> diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
> index b2fa62922d88..f08417f8772e 100644
> --- a/arch/mips/include/asm/processor.h
> +++ b/arch/mips/include/asm/processor.h
> @@ -22,11 +22,6 @@
>  #include <asm/mipsregs.h>
>  #include <asm/prefetch.h>
>  
> -/*
> - * Return current * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ __label__ _l; _l: &&_l;})
> -
>  /*
>   * System setup and hardware flags..
>   */
> diff --git a/arch/nds32/include/asm/processor.h b/arch/nds32/include/asm/processor.h
> index 9c83caf4269f..c2660f566bac 100644
> --- a/arch/nds32/include/asm/processor.h
> +++ b/arch/nds32/include/asm/processor.h
> @@ -4,12 +4,6 @@
>  #ifndef __ASM_NDS32_PROCESSOR_H
>  #define __ASM_NDS32_PROCESSOR_H
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ __label__ _l; _l: &&_l;})
> -
>  #ifdef __KERNEL__
>  
>  #include <asm/ptrace.h>
> diff --git a/arch/nios2/include/asm/processor.h b/arch/nios2/include/asm/processor.h
> index 4944e2e1d8b0..94bcb86f679f 100644
> --- a/arch/nios2/include/asm/processor.h
> +++ b/arch/nios2/include/asm/processor.h
> @@ -38,12 +38,6 @@
>  #define KUSER_SIZE		(PAGE_SIZE)
>  #ifndef __ASSEMBLY__
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ __label__ _l; _l: &&_l; })
> -
>  # define TASK_SIZE		0x7FFF0000UL
>  # define TASK_UNMAPPED_BASE	(PAGE_ALIGN(TASK_SIZE / 3))
>  
> diff --git a/arch/openrisc/include/asm/processor.h b/arch/openrisc/include/asm/processor.h
> index af31a9fe736a..351d3aed7a06 100644
> --- a/arch/openrisc/include/asm/processor.h
> +++ b/arch/openrisc/include/asm/processor.h
> @@ -30,11 +30,6 @@
>  		   | SPR_SR_DCE | SPR_SR_SM)
>  #define USER_SR   (SPR_SR_DME | SPR_SR_IME | SPR_SR_ICE \
>  		   | SPR_SR_DCE | SPR_SR_IEE | SPR_SR_TEE)
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ __label__ _l; _l: &&_l; })
>  
>  /*
>   * User space process size. This is hardcoded into a few places,
> diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
> index 2dbe5580a1a4..0d7f64ef9c7d 100644
> --- a/arch/parisc/include/asm/processor.h
> +++ b/arch/parisc/include/asm/processor.h
> @@ -20,17 +20,6 @@
>  #include <asm/percpu.h>
>  #endif /* __ASSEMBLY__ */
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#ifdef CONFIG_PA20
> -#define current_ia(x)	__asm__("mfia %0" : "=r"(x))
> -#else /* mfia added in pa2.0 */
> -#define current_ia(x)	__asm__("blr 0,%0\n\tnop" : "=r"(x))
> -#endif
> -#define current_text_addr() ({ void *pc; current_ia(pc); pc; })
> -
>  #define HAVE_ARCH_PICK_MMAP_LAYOUT
>  
>  #define TASK_SIZE_OF(tsk)       ((tsk)->thread.task_size)
> diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
> index 52fadded5c1e..1fff74df06e6 100644
> --- a/arch/powerpc/include/asm/processor.h
> +++ b/arch/powerpc/include/asm/processor.h
> @@ -67,12 +67,6 @@ extern int _chrp_type;
>  
>  #endif /* defined(__KERNEL__) && defined(CONFIG_PPC32) */
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ __label__ _l; _l: &&_l;})
> -
>  /* Macros for adjusting thread priority (hardware multi-threading) */
>  #define HMT_very_low()   asm volatile("or 31,31,31   # very low priority")
>  #define HMT_low()	 asm volatile("or 1,1,1	     # low priority")
> diff --git a/arch/riscv/include/asm/processor.h b/arch/riscv/include/asm/processor.h
> index 3fe4af8147d2..020e35947060 100644
> --- a/arch/riscv/include/asm/processor.h
> +++ b/arch/riscv/include/asm/processor.h
> @@ -33,12 +33,6 @@
>  struct task_struct;
>  struct pt_regs;
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr()	({ __label__ _l; _l: &&_l; })
> -
>  /* CPU-specific state of a task */
>  struct thread_struct {
>  	/* Callee-saved registers */
> diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
> index 7f2953c15c37..f8028d37bb18 100644
> --- a/arch/s390/include/asm/processor.h
> +++ b/arch/s390/include/asm/processor.h
> @@ -73,12 +73,6 @@ static inline int test_cpu_flag_of(int flag, int cpu)
>  
>  #define arch_needs_cpu() test_cpu_flag(CIF_NOHZ_DELAY)
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ void *pc; asm("basr %0,0" : "=a" (pc)); pc; })
> -
>  static inline void get_cpu_id(struct cpuid *ptr)
>  {
>  	asm volatile("stidp %0" : "=Q" (*ptr));
> diff --git a/arch/sh/include/asm/processor_32.h b/arch/sh/include/asm/processor_32.h
> index 95100d8a0b7b..0e0ecc0132e3 100644
> --- a/arch/sh/include/asm/processor_32.h
> +++ b/arch/sh/include/asm/processor_32.h
> @@ -16,12 +16,6 @@
>  #include <asm/types.h>
>  #include <asm/hw_breakpoint.h>
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ void *pc; __asm__("mova	1f, %0\n.align 2\n1:":"=z" (pc)); pc; })
> -
>  /* Core Processor Version Register */
>  #define CCN_PVR		0xff000030
>  #define CCN_CVR		0xff000040
> diff --git a/arch/sh/include/asm/processor_64.h b/arch/sh/include/asm/processor_64.h
> index 777a16318aff..f3d7075648d0 100644
> --- a/arch/sh/include/asm/processor_64.h
> +++ b/arch/sh/include/asm/processor_64.h
> @@ -19,21 +19,6 @@
>  #include <asm/types.h>
>  #include <cpu/registers.h>
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ \
> -void *pc; \
> -unsigned long long __dummy = 0; \
> -__asm__("gettr	tr0, %1\n\t" \
> -	"pta	4, tr0\n\t" \
> -	"gettr	tr0, %0\n\t" \
> -	"ptabs	%1, tr0\n\t"	\
> -	:"=r" (pc), "=r" (__dummy) \
> -	: "1" (__dummy)); \
> -pc; })
> -
>  #endif
>  
>  /*
> diff --git a/arch/sparc/include/asm/processor_32.h b/arch/sparc/include/asm/processor_32.h
> index 192493c257fa..3c4bc2189092 100644
> --- a/arch/sparc/include/asm/processor_32.h
> +++ b/arch/sparc/include/asm/processor_32.h
> @@ -7,12 +7,6 @@
>  #ifndef __ASM_SPARC_PROCESSOR_H
>  #define __ASM_SPARC_PROCESSOR_H
>  
> -/*
> - * Sparc32 implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ void *pc; __asm__("sethi %%hi(1f), %0; or %0, %%lo(1f), %0;\n1:" : "=r" (pc)); pc; })
> -
>  #include <asm/psr.h>
>  #include <asm/ptrace.h>
>  #include <asm/head.h>
> diff --git a/arch/sparc/include/asm/processor_64.h b/arch/sparc/include/asm/processor_64.h
> index aac23d4a4ddd..5cf145f18f36 100644
> --- a/arch/sparc/include/asm/processor_64.h
> +++ b/arch/sparc/include/asm/processor_64.h
> @@ -8,12 +8,6 @@
>  #ifndef __ASM_SPARC64_PROCESSOR_H
>  #define __ASM_SPARC64_PROCESSOR_H
>  
> -/*
> - * Sparc64 implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ void *pc; __asm__("rd %%pc, %0" : "=r" (pc)); pc; })
> -
>  #include <asm/asi.h>
>  #include <asm/pstate.h>
>  #include <asm/ptrace.h>
> diff --git a/arch/unicore32/include/asm/processor.h b/arch/unicore32/include/asm/processor.h
> index 4eaa42167667..b772ed1c0f25 100644
> --- a/arch/unicore32/include/asm/processor.h
> +++ b/arch/unicore32/include/asm/processor.h
> @@ -13,12 +13,6 @@
>  #ifndef __UNICORE_PROCESSOR_H__
>  #define __UNICORE_PROCESSOR_H__
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr() ({ __label__ _l; _l: &&_l; })
> -
>  #ifdef __KERNEL__
>  
>  #include <asm/ptrace.h>
> diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h
> index f327236f0fa7..86924d594ecd 100644
> --- a/arch/x86/include/asm/kexec.h
> +++ b/arch/x86/include/asm/kexec.h
> @@ -21,6 +21,7 @@
>  #ifndef __ASSEMBLY__
>  
>  #include <linux/string.h>
> +#include <linux/kernel.h>
>  
>  #include <asm/page.h>
>  #include <asm/ptrace.h>
> @@ -132,7 +133,7 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
>  		asm volatile("movl %%cs, %%eax;" :"=a"(newregs->cs));
>  		asm volatile("pushfq; popq %0" :"=m"(newregs->flags));
>  #endif
> -		newregs->ip = (unsigned long)current_text_addr();
> +		newregs->ip = _THIS_IP_;
>  	}
>  }
>  
> diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
> index 682286aca881..20080b303605 100644
> --- a/arch/x86/include/asm/processor.h
> +++ b/arch/x86/include/asm/processor.h
> @@ -42,18 +42,6 @@ struct vm86;
>  #define NET_IP_ALIGN	0
>  
>  #define HBP_NUM 4
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -static inline void *current_text_addr(void)
> -{
> -	void *pc;
> -
> -	asm volatile("mov $1f, %0; 1:":"=r" (pc));
> -
> -	return pc;
> -}
>  
>  /*
>   * These alignment constraints are for performance in the vSMP case,
> diff --git a/arch/x86/um/asm/processor_32.h b/arch/x86/um/asm/processor_32.h
> index c112de81c9e1..5fb1b8449adf 100644
> --- a/arch/x86/um/asm/processor_32.h
> +++ b/arch/x86/um/asm/processor_32.h
> @@ -47,14 +47,6 @@ static inline void arch_copy_thread(struct arch_thread *from,
>          memcpy(&to->tls_array, &from->tls_array, sizeof(from->tls_array));
>  }
>  
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter"). Stolen
> - * from asm-i386/processor.h
> - */
> -#define current_text_addr() \
> -	({ void *pc; __asm__("movl $1f,%0\n1:":"=g" (pc)); pc; })
> -
>  #define current_sp() ({ void *sp; __asm__("movl %%esp, %0" : "=r" (sp) : ); sp; })
>  #define current_bp() ({ unsigned long bp; __asm__("movl %%ebp, %0" : "=r" (bp) : ); bp; })
>  
> diff --git a/arch/x86/um/asm/processor_64.h b/arch/x86/um/asm/processor_64.h
> index c3be85205a65..1ef9c21877bc 100644
> --- a/arch/x86/um/asm/processor_64.h
> +++ b/arch/x86/um/asm/processor_64.h
> @@ -31,9 +31,6 @@ static inline void arch_copy_thread(struct arch_thread *from,
>  	to->fs = from->fs;
>  }
>  
> -#define current_text_addr() \
> -	({ void *pc; __asm__("movq $1f,%0\n1:":"=g" (pc)); pc; })
> -
>  #define current_sp() ({ void *sp; __asm__("movq %%rsp, %0" : "=r" (sp) : ); sp; })
>  #define current_bp() ({ unsigned long bp; __asm__("movq %%rbp, %0" : "=r" (bp) : ); bp; })
>  
> diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h
> index 5b0027d4ecc0..68891c992105 100644
> --- a/arch/xtensa/include/asm/processor.h
> +++ b/arch/xtensa/include/asm/processor.h
> @@ -153,14 +153,6 @@ struct thread_struct {
>  	int align[0] __attribute__ ((aligned(16)));
>  };
>  
> -
> -/*
> - * Default implementation of macro that returns current
> - * instruction pointer ("program counter").
> - */
> -#define current_text_addr()  ({ __label__ _l; _l: &&_l;})
> -
> -
>  /* This decides where the kernel will search for a free chunk of vm
>   * space during mmap's.
>   */
> 

From - Thu Nov 08 21:41:52 2018
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From: Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] treewide: remove current_text_addr
Date: Sat, 25 Aug 2018 14:02:43 -0700
Lines: 19
Approved: news@gmane.org
Message-ID: <CA+55aFxL-u3uvGGv0GOoHhEwV8fy=BCN1yScxKQiVMPoHtg=Wg@mail.gmail.com>
References: <CAKwvOdkWL_2yTnJqM6n6R9UCPwY4iz-9BQYGN2MDAk9EzumUvA@mail.gmail.com>
 <20180821202900.208417-1-ndesaulniers@google.com>
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NNTP-Posting-Date: Sat, 25 Aug 2018 21:01:16 +0000 (UTC)
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>,
 linux-mips <linux-mips@linux-mips.org>,
 Linux-sh list <linux-sh@vger.kernel.org>,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Will Deacon <will.deacon@arm.com>, Paul Mackerras <paulus@samba.org>,
 Michael Ellerman <mpe@ellerman.id.au>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 Geert Uytterhoeven <geert@linux-m68k.org>,
 Catalin Marinas <catalin.marinas@arm.com>, gor@linux.vnet.ibm.com,
 Matt Turner <mattst88@gmail.com>,
 "moderated list:H8/300 ARCHITECTURE" <uclinux-h8-devel@lists.sourceforge.jp>,
 Marc Zyngier <marc.zyngier@arm.com>, Ram Pai <linuxram@us.ibm.com>,
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On Tue, Aug 21, 2018 at 1:31 PM Nick Desaulniers
<ndesaulniers@google.com> wrote:
>
> I suspect that current_text_addr predated GNU C extensions for statement
> expressions and/or taking the address of a label, then the macro was
> reimplemented for every new archs include/asm/processor.h, even though
> there were very few call sites, and none required an assembly
> implementation vs the C implementation.

I actually have this very dim memory that we had some compiler issues
where a label in the code resulted in gcc generating worse code
elsewhere in that same function.

But current_text_addr() predates both the git and the BK history, so
it's all shrouded in antiquity, and even if my dim recollection is
true, it may not be true any more. There aren't so many call sites
that it is likely to matter anyway.

             Linus

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Cc: Nicolas Pitre <nicolas.pitre@linaro.org>, linux-mips@linux-mips.org,
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To: Helge Deller <deller@gmx.de>, Nick Desaulniers <ndesaulniers@google.com>, 
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On 08/25/18 03:48, Helge Deller wrote:
> 
> Currently alpha, s390, sparc, sh, c6x, ia64 and parisc provide an
> inline assembly function to get the current instruction pointer. 
> As mentioned in an earlier thread, I personally would *prefer* if 
> _THIS_IP_ would use those inline assembly instructions on those
> architectures instead of the (currently used) higher C-level
> implementation.
> 

Older ones have as well, e.g. x86.

The only reason to retain the use of an assembly function would be in
the case where either:

a) the C implementation produces bad or invalid code on certain
   architectures;
b) there is a specific requirement that either an absolute or a relative
   value is used in the binary, e.g. due to constraints on relocation.
   The latter particularly comes to mind since the x86-64 implementation
   in assembly will produce movq $.,%reg (which requires relocation)
   instead of the more natural leaq .(%rip),%reg.

In the case (a) those architectures ought to be able to simply

#undef _THIS_IP_
#define _THIS_IP_ blah...

and in case (b) *those specific instances* should be using some kind of
specially flagged function e.g. current_true_ip() vs.
current_linktime_ip() or somesuch.

I also note that a lot of those functions are not marked
__always_inline, which is a serious error should the compiler ever get
the idea to out-of-line these functions, which could potentially happen
as gcc is rather bad at assigning weight to an assembly statement.

I'm also going to throw in a perhaps ugly bomb into this discussion:

_THIS_IP_ seems to be horribly ill-defined; there is no kind of
serialization, and no reason to believe it can't be arbitrarily hoisted
inside a function. Furthermore, *most of the uses of _THIS_IP_ seem to
be either discarded or passed to a function*, and the location of a
function call, unlike _THIS_IP_ is very well defined.

In that case, the use of this mechanism is completely pointless and
ought to be replaced with _RET_IP_.  It seems like most invocations of
_THIS_IP_ can be trivially replaced with _RET_IP_ inside the function,
which would also reduce the footprint of the function call, for example:

__trace_puts() is only ever called with _THIS_IP_ as the first argument;
drop that argument and use _RET_IP_ inside the function (also,
__trace_puts() only ever uses strlen() as the third argument, which gcc
can of course optimize into a constant for the case of a consta t
string, but *is that optimization actually worth it*?  In the case of
__trace_puts(), a variable strlen() would only ever need to be called in
the case of an allocation actually happening -- otherwise str is never
examined -- and again, it increases the *code size* of the call site.
If it was worthwhile it would make more sense to at least force this
into the rodata section with the string, something like the attached
file for an example; however, I have a hunch it doesn't matter.

I wouldn't be surprised if all or nearly all instances of _THIS_IP_ can
be completely removed.

	-hpa

--------------CE37549B542F2DC07673DCF7
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#include <stddef.h>
#include <string.h>

#define _RET_IP_ ((unsigned long)__builtin_return_address(0))
#define no_inline __attribute__((noinline))
#define must_inline __attribute__((always_inline)) inline

struct myputs_string {
	size_t len;
	const char *str;
};

int _myputs_struct(const struct myputs_string * const strs);
int _myputs_string(const char *str);
int __myputs(unsigned long ip, const char *str, size_t len);

int no_inline _myputs_struct(const struct myputs_string * const strs)
{
	return __myputs(_RET_IP_, strs->str, strs->len);
}

int no_inline _myputs_string(const char *str)
{
	return __myputs(_RET_IP_, str, strlen(str)+1);
}

#define myputs(s)							\
({									\
	int _rv;							\
	if (__builtin_constant_p(s) &&					\
	    __builtin_constant_p(strlen(s)) &&				\
	    strlen(s)+1 == sizeof(s)) {					\
		static const struct myputs_string _mps = {		\
			.len = sizeof(s),				\
			.str = __builtin_constant_p(s) ? s : NULL,	\
		};							\
		_rv = _myputs_struct(&_mps);				\
	} else {							\
		_rv = _myputs_string(s);				\
	}								\
	_rv;								\
})

int test1(void);
int test2(const char *strx);

int test1(void)
{
	return myputs("Foobar");
}

int test2(const char *strx)
{
	return myputs(strx);
}

		

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Subject: Re: [PATCH] treewide: remove current_text_addr
Date: Sat, 25 Aug 2018 20:16:39 -0700
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To: Helge Deller <deller@gmx.de>, Nick Desaulniers <ndesaulniers@google.com>, 
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On 08/25/18 19:38, H. Peter Anvin wrote:
>
> If it was worthwhile it would make more sense to at least force this
> into the rodata section with the string, something like the attached
> file for an example; however, I have a hunch it doesn't matter.
> 

An even nuttier version which avoids the extra pointer indirection.
Read it and fear.

	-hpa


--------------E7C8783F0513F369AAD19004
Content-Type: text/x-csrc;
 name="str.c"
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 filename="str.c"

#include <stddef.h>
#include <string.h>

#define _RET_IP_ ((unsigned long)__builtin_return_address(0))
#define no_inline __attribute__((noinline))
#define must_inline __attribute__((always_inline)) inline

struct myputs_string {
	unsigned short len;
	char str[0];
};

int _myputs_struct(const struct myputs_string * const strs);
int _myputs_string(const char *str);
int __myputs(unsigned long ip, const char *str, size_t len);

int no_inline _myputs_struct(const struct myputs_string * const strs)
{
	return __myputs(_RET_IP_, strs->str, strs->len);
}

int no_inline _myputs_string(const char *str)
{
	return __myputs(_RET_IP_, str, strlen(str)+1);
}

#define ifconst(x,y)	__builtin_choose_expr(__builtin_constant_p(x),(x),(y))

#define myputs(s)							\
({									\
	int _rv;							\
	if (__builtin_constant_p(s) &&					\
	    __builtin_constant_p(strlen(s)) &&				\
	    strlen(s)+1 == sizeof(s) &&					\
	    sizeof(s) <= (size_t)65535) {				\
	static const struct {						\
		struct myputs_string _mps_hdr;				\
		char _mps_str[sizeof(s)];				\
	} _mps = {							\
		._mps_hdr.len = sizeof(s),				\
		._mps_str = ifconst(s,""),				\
	};								\
		_rv = _myputs_struct(&_mps._mps_hdr);			\
	} else {							\
		_rv = _myputs_string(s);				\
	}								\
	_rv;								\
})

int test1(void);
int test2(const char *strx);

int test1(void)
{
	return myputs("Foobar");
}

int test2(const char *strx)
{
	return myputs(strx);
}

		

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Path: news.gmane.org!.POSTED!not-for-mail
From: "H. Peter Anvin" <hpa@zytor.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] treewide: remove current_text_addr
Date: Sat, 25 Aug 2018 21:56:11 -0700
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Cc: Nicolas Pitre <nicolas.pitre@linaro.org>, linux-mips@linux-mips.org,
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 "James E.J. Bottomley" <jejb@parisc-linux.org>,
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 Richard Henderson <rth@twiddle.net>, Jiri Kosina <jkosina@suse.cz>,
 linux-kernel@vger.kerne
To: Helge Deller <deller@gmx.de>, Nick Desaulniers <ndesaulniers@google.com>, 
 torvalds@linux-foundation.org, akpm@linux-foundation.org
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On 08/25/18 20:16, H. Peter Anvin wrote:
> On 08/25/18 19:38, H. Peter Anvin wrote:
>>
>> If it was worthwhile it would make more sense to at least force this
>> into the rodata section with the string, something like the attached
>> file for an example; however, I have a hunch it doesn't matter.
>>
> 
> An even nuttier version which avoids the extra pointer indirection.
> Read it and fear.
> 
> 	-hpa
> 

OK, so one more thing, I guess: it is necessary to suppress the tailcall
optimization for _RET_IP_ to make any sense, but that should be pretty
simple:

static inline void notailcall(void)
{
	asm volatile("");
}

	-hpa

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Subject: Re: [PATCH] treewide: remove current_text_addr
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 Will Deacon <will.deacon@arm.com>, Paul Mackerras <paulus@samba.org>,
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 uclinux-h8-devel@lists.sourceforge.jp, Marc Zyngier <marc.zyngier@arm.com>,
 Ram Pai <linuxram@us.ibm.com>, linux-um@lists.infradead.org,
 Nicholas Piggin <npiggin@gmail.com>, Andy Lutomirski <luto@kernel.org>,
 Shannon Nelson <shannon.nelson@oracle.com>, tglx@linutronix.de,
 =?UTF-8?Q?Alex_Benn=c3=a9e?= <alex.bennee@linaro.org>,
 Richard Henderson <rth@twiddle.net>, Jiri Kosina <jkosina@suse.cz>,
 linux-kernel@vger.kerne
To: Helge Deller <deller@gmx.de>, Nick Desaulniers <ndesaulniers@google.com>, 
 torvalds@linux-foundation.org, akpm@linux-foundation.org
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--------------5E98DEB96C9E8225D80004DF
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Here is a full-blown (user space) test program demonstrating the whole
technique and how to use it.

	-hpa


--------------5E98DEB96C9E8225D80004DF
Content-Type: text/x-csrc;
 name="str.c"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="str.c"

#include <stddef.h>
#include <string.h>

#define _RET_IP_ ((unsigned long)__builtin_return_address(0))
#define noinline __attribute__((noinline))
#define used __attribute__((used))
/* __always_inline is defined in glibc already */
#define ifconst(x,y)	__builtin_choose_expr(__builtin_constant_p(x),(x),(y))
static inline void notailcall(void)
{
	asm volatile("");
}

/* Change this to a null string to make all functions global */
#define STATIC static

struct myputs_string {
	unsigned short len;
	char str[0];
};

STATIC int _myputs_struct(const struct myputs_string * const strs);
STATIC int _myputs_string(const char *str);
STATIC int __myputs(unsigned long ip, const char *str, size_t len);

#if 1

#include <stdio.h>

STATIC void dump_caller(unsigned long where)
{
	const char *opname = NULL;
	const char *wheretoname = NULL;
	char ichar;
	unsigned long whereto = 0;

#if defined(__i386__) || defined(__x86_64__)
	char opname_buf[4];
	unsigned char opcode;
	
	where -= 5;
	opcode = *(unsigned char *)where;

	switch (opcode) {
	case 0xe8:
		opname = "call";
		whereto = where + 5 + *(signed int *)(where + 1);
		break;
	case 0xe9:
		opname = "jmp";
		whereto = where + 5 + *(signed int *)(where + 1);
		break;
	default:
		snprintf(opname_buf, sizeof opname_buf, "?%02x", opcode);
		opname = opname_buf;
		break;
	}

#elif defined(__sparc__)
	const char regtype[4] = "gilo";
	unsigned int opcode, op1, op3, ibit;
	signed int simm13, simm30;
	char opname_buf[32];
	char *p;

	where -= 8;
	
	opcode = *(signed int *)where;
	op1 = opcode >> 30;
	op3 = (opcode >> 19) & 0x3f;
	ibit = (opcode >> 13) & 1;
	simm13 = (opcode & 0x1fff) << 2;
	simm30 = (opcode & 0x3fffffff) << 2;

	opname = opname_buf;
	
	if (op1 == 1) {
		opname = "call";
		whereto = where + simm30;
	} else if (op1 == 2 && op3 == 0x38) {
		if (ibit) {
			snprintf(opname_buf, sizeof opname_buf,
				 "jmpl %%%c%u %c 0x%x",
				 regtype[(opcode >> 17) & 3],
				 (opcode >> 14) & 7,
				 simm13 < 0 ? '-' : '+',
				 abs(simm13));
		} else {
			snprintf(opname_buf, sizeof opname_buf,
				 "jmpl %%%c%u + %%%c%u",
				 regtype[(opcode >> 17) & 3],
				 (opcode >> 14) & 7,
				 regtype[(opcode >> 3) & 3],
				 opcode & 7);
		}
	} else {
		snprintf(opname_buf, sizeof opname_buf,
			 "?0x08x", opcode);
	}
#else
	/* Unknown architecture */
#endif
	if (whereto == (unsigned long)_myputs_struct) {
		wheretoname = "_myputs_struct";
	} else if (whereto == (unsigned long)_myputs_string) {
		wheretoname = "_myputs_string";
	} else {
		wheretoname = "?";
	}

	ichar = '[';
	
	if (opname) {
		printf("%c%p: %s",
		       ichar, (void *)where, opname);
		ichar = ' ';
	}
	if (whereto) {
		printf("%c%p <%s>", ichar, (void *)whereto, wheretoname);
		ichar = ' ';
	}
	if (ichar != '[')
		putchar(']');
}
	
STATIC int __myputs(unsigned long where, const char *str, size_t len)
{
	size_t slen = strlen(str);
	size_t rv;
	
	len--;
	rv = printf("%p: \"%.*s\"%*s", (void *)where, (int)len, str,
		    16-(int)slen, "");
	dump_caller(where);
	if (slen != len)
		printf(" <err: strlen = %zu, len = %zu>\n", slen, len);
	else
		printf(" <ok: len = %zu>\n", len);
	
	return rv;
}

STATIC int noinline _myputs_struct(const struct myputs_string * const strs)
{
	return __myputs(_RET_IP_, strs->str, strs->len);
}

STATIC int noinline _myputs_string(const char *str)
{
	return __myputs(_RET_IP_, str, strlen(str)+1);
}
#endif

#define myputs(s)							\
({									\
	int _rv;							\
	if (__builtin_constant_p(s) &&					\
	    __builtin_constant_p(strlen(s)) &&				\
	    strlen(s)+1 == sizeof(s) &&					\
	    sizeof(s) <= (size_t)65535) {				\
	static const struct {						\
		struct myputs_string _mps_hdr;				\
		char _mps_str[sizeof(s)];				\
	} _mps = {							\
		._mps_hdr.len = sizeof(s),				\
		._mps_str = ifconst(s,""),				\
	};								\
		_rv = _myputs_struct(&_mps._mps_hdr);			\
	} else {							\
		_rv = _myputs_string(s);				\
	}								\
	notailcall();							\
	_rv;								\
})

STATIC int test1(void);
STATIC int test2(const char *strx);

STATIC int test1(void)
{
	return myputs("Foobar");
}

STATIC int test2(const char *strx)
{
	return myputs(strx);
}

int main(int argc, char *argv[])
{
	(void)argc;

	test1();
	test2(argv[0]);
	return 0;
}

--------------5E98DEB96C9E8225D80004DF
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_______________________________________________
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Cc: Nicolas Pitre <nicolas.pitre@linaro.org>,
 linux-mips <linux-mips@linux-mips.org>,
 Linux-sh list <linux-sh@vger.kernel.org>,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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 N
To: Peter Anvin <hpa@zytor.com>, Peter Zijlstra <peterz@infradead.org>
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On Sun, Aug 26, 2018 at 12:32 PM H. Peter Anvin <hpa@zytor.com> wrote:
>
> Here is a full-blown (user space) test program demonstrating the whole
> technique and how to use it.

So while I agree that some _THIS_IP_ users might be better off being
converted to __builtin_return_address(0) at the caller, I also think
that the whole "notailcall" thing shows why that can easily be more
problematic than just our currnet _THIS_IP_ solution.

Honestly, I'd suggest:

 - just do the current_text_addr() to _THIS_IP_ conversion

 - keep _THIS_IP_ and make it be the generic one, and screw the whole
"some architectures might implement is better" issue. Nobody cares.

 - try to convince people to move away from the "we want the kernel
instruction pointer for the call" model entirely, and consider this a
"legacy" issue.

The whole instruction pointer is a nasty thing. We should discourage
it and not make complex infrastructure for it.

Instead, maybe we could encourage something like

  struct kernel_loc { const char *file; const char *fn; int line; };

  #define __GEN_LOC__(n) \
        ({ static const struct kernel_loc n = { \
                __FILE__, __FUNCTION__, __LINE__  \
           }; &n; })

  #define _THIS_LOC_ __GEN_LOC__(__UNIQUE_ID(loc))

which is a hell of a lot nicer to use, and actually allows gcc to
optimize things (try it: if you pass a _THIS_LOC_ off to an inline
function, and that inline function uses the name and line number, gcc
will pick them up directly, without the extra structure dereference.

Wouldn't it be much nicer to pass these kinds of "location pointer"
around, rather than the nasty _THIS_IP_ thing?

Certainly lockdep looks like it could easily take that "const struct
kernel_loc *" instead of "unsigned long ip". Makes it easy to print
out the lockdep info.

Ok, I didn't try to convert anybody, so maybe people who currently use
_THIS_IP_ or current_text_addr() have some fundamental reason why they
want just that, but let's not male _THIS_IP_ more complex than it
needs to be.

Hmm?

             Linus

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On 08/26/18 12:30, H. Peter Anvin wrote:
> Here is a full-blown (user space) test program demonstrating the whole
> technique and how to use it.
> 
> 	-hpa

Incidentally, it looks like _RET_IP_ really should be defined as:


/*
 * Is there any reason whatsoever to have _RET_IP_ an unsigned int
 * rather than a pointer throughout?
 */

#define _RET_IP_PTR_ \
	__builtin_extract_return_addr(__builtin_return_addr(0))
#define _RET_IP_ ((unsigned long)_RET_IP_PTR_)

On some architectures __builtin_extract_return_addr() is apparently
necessary; its a nop on x86.  Why that isn't part of
__builtin_return_addr() one can really wonder.

So, checking into all of this, the generic _THIS_IP_ DOES NOT WORK on
x86.  I have tried a tons of variants, including adding various asm
volatile(...) instructions, and no matter what I do, it will always
return the address of the surrounding function rather than any kind of
local IP.  The only way to get a localized address seems to be in
assembly, but even so, there is absolutely no guarantee that the value
of _THIS_IP_ has anything to do with where the code is otherwise
localized in the function.

>From examining the output of gcc, the fundamental problem seems to be
that *no matter what* one do with the label, unless gcc actually
produces a computed goto somewhere in the code, that it can't remove
with dead-code elimination or constant propagation, it will arbitrarily
hoist the labels all the way to the beginning of the function. Given
that, I suspect that other versions of gcc might have similar problems.

This is the closest thing to arch-neutral I have been able to find that
also works on x86, while not at the same time horribly polluting the
namespace:

#define __here(n) ___here_ ## n
#define __hereasm(n) ".L___here_" #n
#define _THIS_IP_CTR_(n)					\
	({							\
		extern const char __here(n) asm(__hereasm(n));	\
		asm volatile(__hereasm(n) ": /* _THIS_IP_ */"); \
		(unsigned long)&__here(n);			\
	})
#define _THIS_IP_ _THIS_IP_CTR_(__COUNTER__)

The use of asm volatile() to define a label means that the position in
the instruction stream is at least reasonably well-defined.

	-hpa

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Subject: [PATCH] parisc: remove check for minimum required GCC version
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Commit cafa0010cd51 ("Raise the minimum required gcc version to 4.6")
bumped the minimum GCC version to 4.6 for all architectures.

The version check in arch/parisc/Makefile is obsolete now.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

 arch/parisc/Makefile | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5ce0302..d047a09 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -156,12 +156,3 @@ define archhelp
 	@echo  '		  copy to $$(INSTALL_PATH)'
 	@echo  '  zinstall	- Install compressed vmlinuz kernel'
 endef
-
-# we require gcc 3.3 or above to compile the kernel
-archprepare: checkbin
-checkbin:
-	@if test "$(cc-version)" -lt "0303"; then \
-		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
-		echo "the kernel." ; \
-		false ; \
-	fi
-- 
2.7.4



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Subject: Re: [PATCH] treewide: remove current_text_addr
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Cc: nicolas.pitre@linaro.org, linux-mips@linux-mips.org,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Sun, Aug 26, 2018 at 1:25 PM Linus Torvalds
<torvalds@linux-foundation.org> wrote:
> Honestly, I'd suggest:
>
>  - just do the current_text_addr() to _THIS_IP_ conversion
>
>  - keep _THIS_IP_ and make it be the generic one, and screw the whole
> "some architectures might implement is better" issue. Nobody cares.

And mention it to the compiler vendors as this seems like a case where
code gen can be improved.

>
>  - try to convince people to move away from the "we want the kernel
> instruction pointer for the call" model entirely, and consider this a
> "legacy" issue.
>
> The whole instruction pointer is a nasty thing. We should discourage
> it and not make complex infrastructure for it.

Yes, please.  I think we should strive for simplicity here.

>
> Instead, maybe we could encourage something like
>
>   struct kernel_loc { const char *file; const char *fn; int line; };
>
>   #define __GEN_LOC__(n) \
>         ({ static const struct kernel_loc n = { \
>                 __FILE__, __FUNCTION__, __LINE__  \
>            }; &n; })
>
>   #define _THIS_LOC_ __GEN_LOC__(__UNIQUE_ID(loc))
>
> which is a hell of a lot nicer to use, and actually allows gcc to
> optimize things (try it: if you pass a _THIS_LOC_ off to an inline
> function, and that inline function uses the name and line number, gcc
> will pick them up directly, without the extra structure dereference.
>
> Wouldn't it be much nicer to pass these kinds of "location pointer"
> around, rather than the nasty _THIS_IP_ thing?
>
> Certainly lockdep looks like it could easily take that "const struct
> kernel_loc *" instead of "unsigned long ip". Makes it easy to print
> out the lockdep info.
>
> Ok, I didn't try to convert anybody, so maybe people who currently use
> _THIS_IP_ or current_text_addr() have some fundamental reason why they
> want just that, but let's not male _THIS_IP_ more complex than it
> needs to be.
>
> Hmm?
>
>              Linus

This is extremely reasonable.  I can follow up with the lockdep folks
to see if they really need _THIS_IP_ to solve their problem, or if
there's a simpler solution that can solve their needs.  Sometimes
taking a step back and asking for clarity around the big picture
allows simpler solutions to shake out.
-- 
Thanks,
~Nick Desaulniers

From - Thu Nov 08 21:41:52 2018
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Subject: Re: [PATCH] treewide: remove current_text_addr
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Cc: nicolas.pitre@linaro.org, linux-mips@linux-mips.org,
 linux-sh@vger.kernel.org, benh@kernel.crashing.org,
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To: Nick Desaulniers <ndesaulniers@google.com>
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On Sun, Aug 26, 2018 at 07:52:59PM -0700, Nick Desaulniers wrote:
> On Sun, Aug 26, 2018 at 1:25 PM Linus Torvalds

> > Instead, maybe we could encourage something like
> >
> >   struct kernel_loc { const char *file; const char *fn; int line; };
> >
> >   #define __GEN_LOC__(n) \
> >         ({ static const struct kernel_loc n = { \
> >                 __FILE__, __FUNCTION__, __LINE__  \
> >            }; &n; })
> >
> >   #define _THIS_LOC_ __GEN_LOC__(__UNIQUE_ID(loc))
> >
> > which is a hell of a lot nicer to use, and actually allows gcc to
> > optimize things (try it: if you pass a _THIS_LOC_ off to an inline
> > function, and that inline function uses the name and line number, gcc
> > will pick them up directly, without the extra structure dereference.
> >
> > Wouldn't it be much nicer to pass these kinds of "location pointer"
> > around, rather than the nasty _THIS_IP_ thing?
> >
> > Certainly lockdep looks like it could easily take that "const struct
> > kernel_loc *" instead of "unsigned long ip". Makes it easy to print
> > out the lockdep info.

> This is extremely reasonable.  I can follow up with the lockdep folks
> to see if they really need _THIS_IP_ to solve their problem, or if
> there's a simpler solution that can solve their needs.  Sometimes
> taking a step back and asking for clarity around the big picture
> allows simpler solutions to shake out.

What problem are we trying to solve? _THIS_IP_ and _RET_IP_ work fine.
We're 'good' at dealing with text addresses, we use them for call stacks
and all sorts. Why does this need changing?

From - Thu Nov 08 21:41:52 2018
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X-Mozilla-Keys:                                                                                 
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From: Nicholas Piggin <npiggin@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.m68k,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.riscv,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc
Subject: Re: [PATCH] treewide: remove current_text_addr
Date: Mon, 27 Aug 2018 17:43:43 +1000
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On Sun, 26 Aug 2018 13:25:14 -0700
Linus Torvalds <torvalds@linux-foundation.org> wrote:

> On Sun, Aug 26, 2018 at 12:32 PM H. Peter Anvin <hpa@zytor.com> wrote:
> >
> > Here is a full-blown (user space) test program demonstrating the whole
> > technique and how to use it.  
> 
> So while I agree that some _THIS_IP_ users might be better off being
> converted to __builtin_return_address(0) at the caller, I also think
> that the whole "notailcall" thing shows why that can easily be more
> problematic than just our currnet _THIS_IP_ solution.
> 
> Honestly, I'd suggest:
> 
>  - just do the current_text_addr() to _THIS_IP_ conversion
> 
>  - keep _THIS_IP_ and make it be the generic one, and screw the whole
> "some architectures might implement is better" issue. Nobody cares.
> 
>  - try to convince people to move away from the "we want the kernel
> instruction pointer for the call" model entirely, and consider this a
> "legacy" issue.
> 
> The whole instruction pointer is a nasty thing. We should discourage
> it and not make complex infrastructure for it.
> 
> Instead, maybe we could encourage something like
> 
>   struct kernel_loc { const char *file; const char *fn; int line; };
> 
>   #define __GEN_LOC__(n) \
>         ({ static const struct kernel_loc n = { \
>                 __FILE__, __FUNCTION__, __LINE__  \
>            }; &n; })
> 
>   #define _THIS_LOC_ __GEN_LOC__(__UNIQUE_ID(loc))
> 
> which is a hell of a lot nicer to use, and actually allows gcc to
> optimize things (try it: if you pass a _THIS_LOC_ off to an inline
> function, and that inline function uses the name and line number, gcc
> will pick them up directly, without the extra structure dereference.
> 
> Wouldn't it be much nicer to pass these kinds of "location pointer"
> around, rather than the nasty _THIS_IP_ thing?

Seems nice. Do you even need this unique ID thing? AFAIKS the name
would never really be useful.

It could perhaps go into a cold data section too, I assume the common
case is that you do not access it. Although gcc will end up putting
the file and function names into regular rodata.

Possibly we could add a printk specifier for it, pass it through to
existing BUG, etc macros that want exactly this, etc. Makes a lot of
sense.

Thanks,
Nick


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Subject: Re: [PATCH] treewide: remove current_text_addr
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To: Peter Zijlstra <peterz@infradead.org>,
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On 08/27/18 00:33, Peter Zijlstra wrote:
> 
> What problem are we trying to solve? _THIS_IP_ and _RET_IP_ work fine.
> We're 'good' at dealing with text addresses, we use them for call stacks
> and all sorts. Why does this need changing?
> 

_RET_IP_ works fine, with the following two caveats:

1. To get a unique IP for each call site, the function call needs to be
   tailcall protected (easily done by wrapping the function in an
  __always_inline function with the notailcall() function I described
  earlier.  Alternatively, a generic macro wrapper for the same thing:

  #define notailcall(x) ({ typeof(x) _x = (x); asm volatile("");  _x; })

2. To uniformly get the return IP, it needs to be defined as:

#define _RET_IP_((unsigned long) \
__builtin_extract_return_addr(__builtin_return_address(0)))

[sorry for the line wrapping]

Using the type unsigned long instead of void * seems kind of pointless
though.


_THIS_IP_, however, is completely ill-defined, other than being an
address *somewhere* in the same global function (not even necessarily
the same function if the function is static!)  As my experiment show, in
many (nearly) cases gcc will hoist the address all the way to the top of
the function, at least for the current generic implementation.

For the case where _THIS_IP_ is passed to an out-of-line function in all
cases, it is extra pointless because all it does is increase the
footprint of every caller: _RET_IP_ is inherently passed to the function
anyway, and with tailcall protection it will uniquely identify a callsite.

For the case where _THIS_IP_ is used inline, I believe the version I
described will at the very least avoid hoisting around volatile accesses
like READ_ONCE(). Surrounding the marked code with asm volatile("");
[which should be turned into a macro or inline, obviously] might be
necessary for it to make any kind of inherent sense.

The proposed "location identifier" does have a serious problem: with
inline functions you might very well have a bunch of duplicates pointing
into the inline function, so a single callsite isn't identifiable.

	-hpa

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Subject: Re: [PATCH] treewide: remove current_text_addr
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Cc: nicolas.pitre@linaro.org, linux-mips@linux-mips.org,
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To: "H. Peter Anvin" <hpa@zytor.com>
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On Mon, Aug 27, 2018 at 05:26:53AM -0700, H. Peter Anvin wrote:

> _THIS_IP_, however, is completely ill-defined, other than being an
> address *somewhere* in the same global function (not even necessarily
> the same function if the function is static!)  As my experiment show, in
> many (nearly) cases gcc will hoist the address all the way to the top of
> the function, at least for the current generic implementation.

It seems to have mostly worked so far... did anything change?

> For the case where _THIS_IP_ is passed to an out-of-line function in all
> cases, it is extra pointless because all it does is increase the
> footprint of every caller: _RET_IP_ is inherently passed to the function
> anyway, and with tailcall protection it will uniquely identify a callsite.

So I think we can convert many of the lockdep _THIS_IP_ calls to
_RET_IP_ on the other side, with a wee bit of care.

A little something like so perhaps...

---

 drivers/md/bcache/btree.c    |  2 +-
 fs/jbd2/transaction.c        |  6 +++---
 fs/super.c                   |  4 ++--
 include/linux/fs.h           |  4 ++--
 include/linux/jbd2.h         |  4 ++--
 include/linux/lockdep.h      | 21 ++++++++++-----------
 include/linux/percpu-rwsem.h | 22 ++++++++++------------
 include/linux/rcupdate.h     |  8 ++++----
 include/linux/ww_mutex.h     |  2 +-
 kernel/locking/lockdep.c     | 14 ++++++++------
 kernel/printk/printk.c       | 14 +++++++-------
 kernel/sched/core.c          |  4 ++--
 lib/locking-selftest.c       | 32 ++++++++++++++++----------------
 13 files changed, 68 insertions(+), 69 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index c19f7716df88..21ede9b317de 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -940,7 +940,7 @@ static struct btree *mca_alloc(struct cache_set *c, struct btree_op *op,
 	hlist_del_init_rcu(&b->hash);
 	hlist_add_head_rcu(&b->hash, mca_hash(c, k));
 
-	lock_set_subclass(&b->lock.dep_map, level + 1, _THIS_IP_);
+	lock_set_subclass(&b->lock.dep_map, level + 1);
 	b->parent	= (void *) ~0UL;
 	b->flags	= 0;
 	b->written	= 0;
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index c0b66a7a795b..40aa71321f8a 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -382,7 +382,7 @@ static int start_this_handle(journal_t *journal, handle_t *handle,
 	read_unlock(&journal->j_state_lock);
 	current->journal_info = handle;
 
-	rwsem_acquire_read(&journal->j_trans_commit_map, 0, 0, _THIS_IP_);
+	rwsem_acquire_read(&journal->j_trans_commit_map, 0, 0);
 	jbd2_journal_free_transaction(new_transaction);
 	/*
 	 * Ensure that no allocations done while the transaction is open are
@@ -677,7 +677,7 @@ int jbd2__journal_restart(handle_t *handle, int nblocks, gfp_t gfp_mask)
 	if (need_to_start)
 		jbd2_log_start_commit(journal, tid);
 
-	rwsem_release(&journal->j_trans_commit_map, 1, _THIS_IP_);
+	rwsem_release(&journal->j_trans_commit_map, 1);
 	handle->h_buffer_credits = nblocks;
 	/*
 	 * Restore the original nofs context because the journal restart
@@ -1771,7 +1771,7 @@ int jbd2_journal_stop(handle_t *handle)
 			wake_up(&journal->j_wait_transaction_locked);
 	}
 
-	rwsem_release(&journal->j_trans_commit_map, 1, _THIS_IP_);
+	rwsem_release(&journal->j_trans_commit_map, 1);
 
 	if (wait_for_commit)
 		err = jbd2_log_wait_commit(journal, tid);
diff --git a/fs/super.c b/fs/super.c
index 50728d9c1a05..ec650a558f09 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1431,7 +1431,7 @@ static void lockdep_sb_freeze_release(struct super_block *sb)
 	int level;
 
 	for (level = SB_FREEZE_LEVELS - 1; level >= 0; level--)
-		percpu_rwsem_release(sb->s_writers.rw_sem + level, 0, _THIS_IP_);
+		percpu_rwsem_release(sb->s_writers.rw_sem + level, 0);
 }
 
 /*
@@ -1442,7 +1442,7 @@ static void lockdep_sb_freeze_acquire(struct super_block *sb)
 	int level;
 
 	for (level = 0; level < SB_FREEZE_LEVELS; ++level)
-		percpu_rwsem_acquire(sb->s_writers.rw_sem + level, 0, _THIS_IP_);
+		percpu_rwsem_acquire(sb->s_writers.rw_sem + level, 0);
 }
 
 static void sb_freeze_unlock(struct super_block *sb)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 1ec33fd0423f..2ba14e5362e4 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1505,9 +1505,9 @@ void __sb_end_write(struct super_block *sb, int level);
 int __sb_start_write(struct super_block *sb, int level, bool wait);
 
 #define __sb_writers_acquired(sb, lev)	\
-	percpu_rwsem_acquire(&(sb)->s_writers.rw_sem[(lev)-1], 1, _THIS_IP_)
+	percpu_rwsem_acquire(&(sb)->s_writers.rw_sem[(lev)-1], 1)
 #define __sb_writers_release(sb, lev)	\
-	percpu_rwsem_release(&(sb)->s_writers.rw_sem[(lev)-1], 1, _THIS_IP_)
+	percpu_rwsem_release(&(sb)->s_writers.rw_sem[(lev)-1], 1)
 
 /**
  * sb_end_write - drop write access to a superblock
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index b708e5169d1d..7c31176ec8ae 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1155,8 +1155,8 @@ struct journal_s
 
 #define jbd2_might_wait_for_commit(j) \
 	do { \
-		rwsem_acquire(&j->j_trans_commit_map, 0, 0, _THIS_IP_); \
-		rwsem_release(&j->j_trans_commit_map, 1, _THIS_IP_); \
+		rwsem_acquire(&j->j_trans_commit_map, 0, 0); \
+		rwsem_release(&j->j_trans_commit_map, 1); \
 	} while (0)
 
 /* journal feature predicate functions */
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 6fc77d4dbdcd..ed3daf41ae7b 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -348,16 +348,15 @@ static inline int lock_is_held(const struct lockdep_map *lock)
 #define lockdep_is_held_type(lock, r)	lock_is_held_type(&(lock)->dep_map, (r))
 
 extern void lock_set_class(struct lockdep_map *lock, const char *name,
-			   struct lock_class_key *key, unsigned int subclass,
-			   unsigned long ip);
+			   struct lock_class_key *key, unsigned int subclass);
 
-static inline void lock_set_subclass(struct lockdep_map *lock,
-		unsigned int subclass, unsigned long ip)
+static __always_inline void
+lock_set_subclass(struct lockdep_map *lock, unsigned int subclass)
 {
-	lock_set_class(lock, lock->name, lock->key, subclass, ip);
+	lock_set_class(lock, lock->name, lock->key, subclass);
 }
 
-extern void lock_downgrade(struct lockdep_map *lock, unsigned long ip);
+extern void lock_downgrade(struct lockdep_map *lock);
 
 struct pin_cookie { unsigned int val; };
 
@@ -401,11 +400,11 @@ static inline void lockdep_on(void)
 {
 }
 
-# define lock_acquire(l, s, t, r, c, n, i)	do { } while (0)
-# define lock_release(l, n, i)			do { } while (0)
-# define lock_downgrade(l, i)			do { } while (0)
-# define lock_set_class(l, n, k, s, i)		do { } while (0)
-# define lock_set_subclass(l, s, i)		do { } while (0)
+# define lock_acquire(l, s, t, r, c, n)		do { } while (0)
+# define lock_release(l, n)			do { } while (0)
+# define lock_downgrade(l)			do { } while (0)
+# define lock_set_class(l, n, k, s)		do { } while (0)
+# define lock_set_subclass(l, s)		do { } while (0)
 # define lockdep_info()				do { } while (0)
 # define lockdep_init_map(lock, name, key, sub) \
 		do { (void)(name); (void)(key); } while (0)
diff --git a/include/linux/percpu-rwsem.h b/include/linux/percpu-rwsem.h
index 79b99d653e03..4ebf14e99034 100644
--- a/include/linux/percpu-rwsem.h
+++ b/include/linux/percpu-rwsem.h
@@ -29,11 +29,11 @@ static struct percpu_rw_semaphore name = {				\
 extern int __percpu_down_read(struct percpu_rw_semaphore *, int);
 extern void __percpu_up_read(struct percpu_rw_semaphore *);
 
-static inline void percpu_down_read_preempt_disable(struct percpu_rw_semaphore *sem)
+static __always_inline void percpu_down_read_preempt_disable(struct percpu_rw_semaphore *sem)
 {
 	might_sleep();
 
-	rwsem_acquire_read(&sem->rw_sem.dep_map, 0, 0, _RET_IP_);
+	rwsem_acquire_read(&sem->rw_sem.dep_map, 0, 0);
 
 	preempt_disable();
 	/*
@@ -60,7 +60,7 @@ static inline void percpu_down_read(struct percpu_rw_semaphore *sem)
 	preempt_enable();
 }
 
-static inline int percpu_down_read_trylock(struct percpu_rw_semaphore *sem)
+static __always_inline int percpu_down_read_trylock(struct percpu_rw_semaphore *sem)
 {
 	int ret = 1;
 
@@ -78,12 +78,12 @@ static inline int percpu_down_read_trylock(struct percpu_rw_semaphore *sem)
 	 */
 
 	if (ret)
-		rwsem_acquire_read(&sem->rw_sem.dep_map, 0, 1, _RET_IP_);
+		rwsem_acquire_read(&sem->rw_sem.dep_map, 0, 1);
 
 	return ret;
 }
 
-static inline void percpu_up_read_preempt_enable(struct percpu_rw_semaphore *sem)
+static __always_inline void percpu_up_read_preempt_enable(struct percpu_rw_semaphore *sem)
 {
 	/*
 	 * The barrier() prevents the compiler from
@@ -99,7 +99,7 @@ static inline void percpu_up_read_preempt_enable(struct percpu_rw_semaphore *sem
 		__percpu_up_read(sem); /* Unconditional memory barrier */
 	preempt_enable();
 
-	rwsem_release(&sem->rw_sem.dep_map, 1, _RET_IP_);
+	rwsem_release(&sem->rw_sem.dep_map, 1);
 }
 
 static inline void percpu_up_read(struct percpu_rw_semaphore *sem)
@@ -127,20 +127,18 @@ extern void percpu_free_rwsem(struct percpu_rw_semaphore *);
 #define percpu_rwsem_assert_held(sem)				\
 	lockdep_assert_held(&(sem)->rw_sem)
 
-static inline void percpu_rwsem_release(struct percpu_rw_semaphore *sem,
-					bool read, unsigned long ip)
+static __always_inline void percpu_rwsem_release(struct percpu_rw_semaphore *sem, bool read)
 {
-	lock_release(&sem->rw_sem.dep_map, 1, ip);
+	lock_release(&sem->rw_sem.dep_map, 1);
 #ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 	if (!read)
 		sem->rw_sem.owner = RWSEM_OWNER_UNKNOWN;
 #endif
 }
 
-static inline void percpu_rwsem_acquire(struct percpu_rw_semaphore *sem,
-					bool read, unsigned long ip)
+static __always_inline void percpu_rwsem_acquire(struct percpu_rw_semaphore *sem, bool read)
 {
-	lock_acquire(&sem->rw_sem.dep_map, 0, 1, read, 1, NULL, ip);
+	lock_acquire(&sem->rw_sem.dep_map, 0, 1, read, 1, NULL);
 #ifdef CONFIG_RWSEM_SPIN_ON_OWNER
 	if (!read)
 		sem->rw_sem.owner = current;
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 75e5b393cf44..6c1a35555e9d 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -239,14 +239,14 @@ static inline bool rcu_lockdep_current_cpu_online(void) { return true; }
 
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 
-static inline void rcu_lock_acquire(struct lockdep_map *map)
+static __always_inline void rcu_lock_acquire(struct lockdep_map *map)
 {
-	lock_acquire(map, 0, 0, 2, 0, NULL, _THIS_IP_);
+	lock_acquire(map, 0, 0, 2, 0, NULL);
 }
 
-static inline void rcu_lock_release(struct lockdep_map *map)
+static __always_inline void rcu_lock_release(struct lockdep_map *map)
 {
-	lock_release(map, 1, _THIS_IP_);
+	lock_release(map, 1);
 }
 
 extern struct lockdep_map rcu_lock_map;
diff --git a/include/linux/ww_mutex.h b/include/linux/ww_mutex.h
index 3af7c0e03be5..524aa28eef33 100644
--- a/include/linux/ww_mutex.h
+++ b/include/linux/ww_mutex.h
@@ -182,7 +182,7 @@ static inline void ww_acquire_done(struct ww_acquire_ctx *ctx)
 static inline void ww_acquire_fini(struct ww_acquire_ctx *ctx)
 {
 #ifdef CONFIG_DEBUG_MUTEXES
-	mutex_release(&ctx->dep_map, 0, _THIS_IP_);
+	mutex_release(&ctx->dep_map, 0);
 
 	DEBUG_LOCKS_WARN_ON(ctx->acquired);
 	if (!IS_ENABLED(CONFIG_PROVE_LOCKING))
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 5fa4d3138bf1..0b7c4f94a7a3 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -3868,9 +3868,9 @@ static void check_flags(unsigned long flags)
 }
 
 void lock_set_class(struct lockdep_map *lock, const char *name,
-		    struct lock_class_key *key, unsigned int subclass,
-		    unsigned long ip)
+		    struct lock_class_key *key, unsigned int subclass)
 {
+	unsigned long ip = _RET_IP_;
 	unsigned long flags;
 
 	if (unlikely(current->lockdep_recursion))
@@ -3886,8 +3886,9 @@ void lock_set_class(struct lockdep_map *lock, const char *name,
 }
 EXPORT_SYMBOL_GPL(lock_set_class);
 
-void lock_downgrade(struct lockdep_map *lock, unsigned long ip)
+void lock_downgrade(struct lockdep_map *lock)
 {
+	unsigned long ip = _RET_IP_;
 	unsigned long flags;
 
 	if (unlikely(current->lockdep_recursion))
@@ -3909,8 +3910,9 @@ EXPORT_SYMBOL_GPL(lock_downgrade);
  */
 void lock_acquire(struct lockdep_map *lock, unsigned int subclass,
 			  int trylock, int read, int check,
-			  struct lockdep_map *nest_lock, unsigned long ip)
+			  struct lockdep_map *nest_lock)
 {
+	unsigned long ip = _RET_IP_;
 	unsigned long flags;
 
 	if (unlikely(current->lockdep_recursion))
@@ -3928,9 +3930,9 @@ void lock_acquire(struct lockdep_map *lock, unsigned int subclass,
 }
 EXPORT_SYMBOL_GPL(lock_acquire);
 
-void lock_release(struct lockdep_map *lock, int nested,
-			  unsigned long ip)
+void lock_release(struct lockdep_map *lock, int nested)
 {
+	unsigned long ip = _RET_IP_;
 	unsigned long flags;
 
 	if (unlikely(current->lockdep_recursion))
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 90b6ab01db59..9c8654be08bb 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1583,7 +1583,7 @@ static void console_lock_spinning_enable(void)
 	raw_spin_unlock(&console_owner_lock);
 
 	/* The waiter may spin on us after setting console_owner */
-	spin_acquire(&console_owner_dep_map, 0, 0, _THIS_IP_);
+	spin_acquire(&console_owner_dep_map, 0, 0);
 }
 
 /**
@@ -1611,20 +1611,20 @@ static int console_lock_spinning_disable_and_check(void)
 	raw_spin_unlock(&console_owner_lock);
 
 	if (!waiter) {
-		spin_release(&console_owner_dep_map, 1, _THIS_IP_);
+		spin_release(&console_owner_dep_map, 1);
 		return 0;
 	}
 
 	/* The waiter is now free to continue */
 	WRITE_ONCE(console_waiter, false);
 
-	spin_release(&console_owner_dep_map, 1, _THIS_IP_);
+	spin_release(&console_owner_dep_map, 1);
 
 	/*
 	 * Hand off console_lock to waiter. The waiter will perform
 	 * the up(). After this, the waiter is the console_lock owner.
 	 */
-	mutex_release(&console_lock_dep_map, 1, _THIS_IP_);
+	mutex_release(&console_lock_dep_map, 1);
 	return 1;
 }
 
@@ -1674,11 +1674,11 @@ static int console_trylock_spinning(void)
 	}
 
 	/* We spin waiting for the owner to release us */
-	spin_acquire(&console_owner_dep_map, 0, 0, _THIS_IP_);
+	spin_acquire(&console_owner_dep_map, 0, 0);
 	/* Owner will clear console_waiter on hand off */
 	while (READ_ONCE(console_waiter))
 		cpu_relax();
-	spin_release(&console_owner_dep_map, 1, _THIS_IP_);
+	spin_release(&console_owner_dep_map, 1);
 
 	printk_safe_exit_irqrestore(flags);
 	/*
@@ -1687,7 +1687,7 @@ static int console_trylock_spinning(void)
 	 * this as a trylock. Otherwise lockdep will
 	 * complain.
 	 */
-	mutex_acquire(&console_lock_dep_map, 0, 1, _THIS_IP_);
+	mutex_acquire(&console_lock_dep_map, 0, 1);
 
 	return 1;
 }
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 454adf9f8180..a3d146cc2cb9 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2557,7 +2557,7 @@ prepare_lock_switch(struct rq *rq, struct task_struct *next, struct rq_flags *rf
 	 * do an early lockdep release here:
 	 */
 	rq_unpin_lock(rq, rf);
-	spin_release(&rq->lock.dep_map, 1, _THIS_IP_);
+	spin_release(&rq->lock.dep_map, 1);
 #ifdef CONFIG_DEBUG_SPINLOCK
 	/* this is a valid case when another task releases the spinlock */
 	rq->lock.owner = next;
@@ -2571,7 +2571,7 @@ static inline void finish_lock_switch(struct rq *rq)
 	 * fix up the runqueue lock - which gets 'carried over' from
 	 * prev into current:
 	 */
-	spin_acquire(&rq->lock.dep_map, 0, 0, _THIS_IP_);
+	spin_acquire(&rq->lock.dep_map, 0, 0);
 	raw_spin_unlock_irq(&rq->lock);
 }
 
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c
index 1e1bbf171eca..d9599c7d0426 100644
--- a/lib/locking-selftest.c
+++ b/lib/locking-selftest.c
@@ -1475,7 +1475,7 @@ static void ww_test_edeadlk_normal(void)
 
 	mutex_lock(&o2.base);
 	o2.ctx = &t2;
-	mutex_release(&o2.base.dep_map, 1, _THIS_IP_);
+	mutex_release(&o2.base.dep_map, 1);
 
 	WWAI(&t);
 	t2 = t;
@@ -1488,7 +1488,7 @@ static void ww_test_edeadlk_normal(void)
 	WARN_ON(ret != -EDEADLK);
 
 	o2.ctx = NULL;
-	mutex_acquire(&o2.base.dep_map, 0, 1, _THIS_IP_);
+	mutex_acquire(&o2.base.dep_map, 0, 1);
 	mutex_unlock(&o2.base);
 	WWU(&o);
 
@@ -1500,7 +1500,7 @@ static void ww_test_edeadlk_normal_slow(void)
 	int ret;
 
 	mutex_lock(&o2.base);
-	mutex_release(&o2.base.dep_map, 1, _THIS_IP_);
+	mutex_release(&o2.base.dep_map, 1);
 	o2.ctx = &t2;
 
 	WWAI(&t);
@@ -1514,7 +1514,7 @@ static void ww_test_edeadlk_normal_slow(void)
 	WARN_ON(ret != -EDEADLK);
 
 	o2.ctx = NULL;
-	mutex_acquire(&o2.base.dep_map, 0, 1, _THIS_IP_);
+	mutex_acquire(&o2.base.dep_map, 0, 1);
 	mutex_unlock(&o2.base);
 	WWU(&o);
 
@@ -1527,7 +1527,7 @@ static void ww_test_edeadlk_no_unlock(void)
 
 	mutex_lock(&o2.base);
 	o2.ctx = &t2;
-	mutex_release(&o2.base.dep_map, 1, _THIS_IP_);
+	mutex_release(&o2.base.dep_map, 1);
 
 	WWAI(&t);
 	t2 = t;
@@ -1540,7 +1540,7 @@ static void ww_test_edeadlk_no_unlock(void)
 	WARN_ON(ret != -EDEADLK);
 
 	o2.ctx = NULL;
-	mutex_acquire(&o2.base.dep_map, 0, 1, _THIS_IP_);
+	mutex_acquire(&o2.base.dep_map, 0, 1);
 	mutex_unlock(&o2.base);
 
 	WWL(&o2, &t);
@@ -1551,7 +1551,7 @@ static void ww_test_edeadlk_no_unlock_slow(void)
 	int ret;
 
 	mutex_lock(&o2.base);
-	mutex_release(&o2.base.dep_map, 1, _THIS_IP_);
+	mutex_release(&o2.base.dep_map, 1);
 	o2.ctx = &t2;
 
 	WWAI(&t);
@@ -1565,7 +1565,7 @@ static void ww_test_edeadlk_no_unlock_slow(void)
 	WARN_ON(ret != -EDEADLK);
 
 	o2.ctx = NULL;
-	mutex_acquire(&o2.base.dep_map, 0, 1, _THIS_IP_);
+	mutex_acquire(&o2.base.dep_map, 0, 1);
 	mutex_unlock(&o2.base);
 
 	ww_mutex_lock_slow(&o2, &t);
@@ -1576,7 +1576,7 @@ static void ww_test_edeadlk_acquire_more(void)
 	int ret;
 
 	mutex_lock(&o2.base);
-	mutex_release(&o2.base.dep_map, 1, _THIS_IP_);
+	mutex_release(&o2.base.dep_map, 1);
 	o2.ctx = &t2;
 
 	WWAI(&t);
@@ -1597,7 +1597,7 @@ static void ww_test_edeadlk_acquire_more_slow(void)
 	int ret;
 
 	mutex_lock(&o2.base);
-	mutex_release(&o2.base.dep_map, 1, _THIS_IP_);
+	mutex_release(&o2.base.dep_map, 1);
 	o2.ctx = &t2;
 
 	WWAI(&t);
@@ -1618,11 +1618,11 @@ static void ww_test_edeadlk_acquire_more_edeadlk(void)
 	int ret;
 
 	mutex_lock(&o2.base);
-	mutex_release(&o2.base.dep_map, 1, _THIS_IP_);
+	mutex_release(&o2.base.dep_map, 1);
 	o2.ctx = &t2;
 
 	mutex_lock(&o3.base);
-	mutex_release(&o3.base.dep_map, 1, _THIS_IP_);
+	mutex_release(&o3.base.dep_map, 1);
 	o3.ctx = &t2;
 
 	WWAI(&t);
@@ -1644,11 +1644,11 @@ static void ww_test_edeadlk_acquire_more_edeadlk_slow(void)
 	int ret;
 
 	mutex_lock(&o2.base);
-	mutex_release(&o2.base.dep_map, 1, _THIS_IP_);
+	mutex_release(&o2.base.dep_map, 1);
 	o2.ctx = &t2;
 
 	mutex_lock(&o3.base);
-	mutex_release(&o3.base.dep_map, 1, _THIS_IP_);
+	mutex_release(&o3.base.dep_map, 1);
 	o3.ctx = &t2;
 
 	WWAI(&t);
@@ -1669,7 +1669,7 @@ static void ww_test_edeadlk_acquire_wrong(void)
 	int ret;
 
 	mutex_lock(&o2.base);
-	mutex_release(&o2.base.dep_map, 1, _THIS_IP_);
+	mutex_release(&o2.base.dep_map, 1);
 	o2.ctx = &t2;
 
 	WWAI(&t);
@@ -1694,7 +1694,7 @@ static void ww_test_edeadlk_acquire_wrong_slow(void)
 	int ret;
 
 	mutex_lock(&o2.base);
-	mutex_release(&o2.base.dep_map, 1, _THIS_IP_);
+	mutex_release(&o2.base.dep_map, 1);
 	o2.ctx = &t2;
 
 	WWAI(&t);

From - Thu Nov 08 21:41:52 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] treewide: remove current_text_addr
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Cc: nicolas.pitre@linaro.org, linux-mips@linux-mips.org,
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To: Peter Zijlstra <peterz@infradead.org>
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On 08/27/18 06:11, Peter Zijlstra wrote:
> On Mon, Aug 27, 2018 at 05:26:53AM -0700, H. Peter Anvin wrote:
> 
>> _THIS_IP_, however, is completely ill-defined, other than being an
>> address *somewhere* in the same global function (not even necessarily
>> the same function if the function is static!)  As my experiment show, in
>> many (nearly) cases gcc will hoist the address all the way to the top of
>> the function, at least for the current generic implementation.
> 
> It seems to have mostly worked so far... did anything change?
> 

Most likely because the major architectures contain a arch-specific
assembly implementation.  The generic implementation used in some places
is completely broken, as my experiments show.

>> For the case where _THIS_IP_ is passed to an out-of-line function in all
>> cases, it is extra pointless because all it does is increase the
>> footprint of every caller: _RET_IP_ is inherently passed to the function
>> anyway, and with tailcall protection it will uniquely identify a callsite.
> 
> So I think we can convert many of the lockdep _THIS_IP_ calls to
> _RET_IP_ on the other side, with a wee bit of care.
> 
> A little something like so perhaps...

I don't have time to look at this right now (I'm on sabbatical, and I'm
dealing with personal legal stuff right at the moment), but I think it
is the right direction.

	-hpa

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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2855940>

ia64, parisc and sparc just use a copy of the generic version
of asm/sockios.h, and x86 is a redirect to the same file, so we
can just let the header file be generated.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/ia64/include/uapi/asm/Kbuild      |  1 +
 arch/ia64/include/uapi/asm/sockios.h   | 21 ---------------------
 arch/parisc/include/uapi/asm/Kbuild    |  1 +
 arch/parisc/include/uapi/asm/sockios.h | 14 --------------
 arch/sparc/include/uapi/asm/Kbuild     |  1 +
 arch/sparc/include/uapi/asm/sockios.h  | 15 ---------------
 arch/x86/include/uapi/asm/Kbuild       |  1 +
 arch/x86/include/uapi/asm/sockios.h    |  1 -
 8 files changed, 4 insertions(+), 51 deletions(-)
 delete mode 100644 arch/ia64/include/uapi/asm/sockios.h
 delete mode 100644 arch/parisc/include/uapi/asm/sockios.h
 delete mode 100644 arch/sparc/include/uapi/asm/sockios.h
 delete mode 100644 arch/x86/include/uapi/asm/sockios.h

diff --git a/arch/ia64/include/uapi/asm/Kbuild b/arch/ia64/include/uapi/asm/Kbuild
index 3982e673e967..a6377ad3ba1c 100644
--- a/arch/ia64/include/uapi/asm/Kbuild
+++ b/arch/ia64/include/uapi/asm/Kbuild
@@ -8,3 +8,4 @@ generic-y += msgbuf.h
 generic-y += poll.h
 generic-y += sembuf.h
 generic-y += shmbuf.h
+generic-y += sockios.h
diff --git a/arch/ia64/include/uapi/asm/sockios.h b/arch/ia64/include/uapi/asm/sockios.h
deleted file mode 100644
index f27a12f95d20..000000000000
--- a/arch/ia64/include/uapi/asm/sockios.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_IA64_SOCKIOS_H
-#define _ASM_IA64_SOCKIOS_H
-
-/*
- * Socket-level I/O control calls.
- *
- * Based on <asm-i386/sockios.h>.
- *
- * Modified 1998, 1999
- *	David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
- */
-#define FIOSETOWN 	0x8901
-#define SIOCSPGRP	0x8902
-#define FIOGETOWN	0x8903
-#define SIOCGPGRP	0x8904
-#define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
-#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
-
-#endif /* _ASM_IA64_SOCKIOS_H */
diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
index 286ef5a5904b..be6c171f57f7 100644
--- a/arch/parisc/include/uapi/asm/Kbuild
+++ b/arch/parisc/include/uapi/asm/Kbuild
@@ -7,3 +7,4 @@ generic-y += kvm_para.h
 generic-y += param.h
 generic-y += poll.h
 generic-y += resource.h
+generic-y += sockios.h
diff --git a/arch/parisc/include/uapi/asm/sockios.h b/arch/parisc/include/uapi/asm/sockios.h
deleted file mode 100644
index 66a3ba64d53f..000000000000
--- a/arch/parisc/include/uapi/asm/sockios.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef __ARCH_PARISC_SOCKIOS__
-#define __ARCH_PARISC_SOCKIOS__
-
-/* Socket-level I/O control calls. */
-#define FIOSETOWN 	0x8901
-#define SIOCSPGRP	0x8902
-#define FIOGETOWN	0x8903
-#define SIOCGPGRP	0x8904
-#define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
-#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
-
-#endif
diff --git a/arch/sparc/include/uapi/asm/Kbuild b/arch/sparc/include/uapi/asm/Kbuild
index 4680ba246b55..8fdae51d0eae 100644
--- a/arch/sparc/include/uapi/asm/Kbuild
+++ b/arch/sparc/include/uapi/asm/Kbuild
@@ -2,4 +2,5 @@
 include include/uapi/asm-generic/Kbuild.asm
 
 generic-y += bpf_perf_event.h
+generic-y += sockios.h
 generic-y += types.h
diff --git a/arch/sparc/include/uapi/asm/sockios.h b/arch/sparc/include/uapi/asm/sockios.h
deleted file mode 100644
index 18a3ec14a847..000000000000
--- a/arch/sparc/include/uapi/asm/sockios.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_SPARC_SOCKIOS_H
-#define _ASM_SPARC_SOCKIOS_H
-
-/* Socket-level I/O control calls. */
-#define FIOSETOWN 	0x8901
-#define SIOCSPGRP	0x8902
-#define FIOGETOWN	0x8903
-#define SIOCGPGRP	0x8904
-#define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
-#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
-
-#endif /* !(_ASM_SPARC_SOCKIOS_H) */
-
diff --git a/arch/x86/include/uapi/asm/Kbuild b/arch/x86/include/uapi/asm/Kbuild
index 322681622d1e..1d489e6b237e 100644
--- a/arch/x86/include/uapi/asm/Kbuild
+++ b/arch/x86/include/uapi/asm/Kbuild
@@ -6,3 +6,4 @@ generated-y += unistd_32.h
 generated-y += unistd_64.h
 generated-y += unistd_x32.h
 generic-y += poll.h
+generic-y += sockios.h
diff --git a/arch/x86/include/uapi/asm/sockios.h b/arch/x86/include/uapi/asm/sockios.h
deleted file mode 100644
index def6d4746ee7..000000000000
--- a/arch/x86/include/uapi/asm/sockios.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/sockios.h>
-- 
2.18.0



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Cc: Nicolas Pitre <nicolas.pitre@linaro.org>, linux-mips@linux-mips.org,
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To: Linus Torvalds <torvalds@linux-foundation.org>
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On Mon, Aug 27, 2018 at 6:34 AM H. Peter Anvin <hpa@zytor.com> wrote:
>
> On 08/27/18 06:11, Peter Zijlstra wrote:
> > On Mon, Aug 27, 2018 at 05:26:53AM -0700, H. Peter Anvin wrote:
> >
> >> _THIS_IP_, however, is completely ill-defined, other than being an
> >> address *somewhere* in the same global function (not even necessarily
> >> the same function if the function is static!)  As my experiment show, in
> >> many (nearly) cases gcc will hoist the address all the way to the top of
> >> the function, at least for the current generic implementation.
> >
> > It seems to have mostly worked so far... did anything change?
> >
>
> Most likely because the major architectures contain a arch-specific
> assembly implementation.  The generic implementation used in some places
> is completely broken, as my experiments show.
>
> >> For the case where _THIS_IP_ is passed to an out-of-line function in all
> >> cases, it is extra pointless because all it does is increase the
> >> footprint of every caller: _RET_IP_ is inherently passed to the function
> >> anyway, and with tailcall protection it will uniquely identify a callsite.
> >
> > So I think we can convert many of the lockdep _THIS_IP_ calls to
> > _RET_IP_ on the other side, with a wee bit of care.
> >
> > A little something like so perhaps...
>
> I don't have time to look at this right now (I'm on sabbatical, and I'm
> dealing with personal legal stuff right at the moment), but I think it
> is the right direction.
>
>         -hpa

Linus,
Can this patch please be merged?  Then we can polish off Peter's
change to lockdep to not even use _THIS_IP_.

-- 
Thanks,
~Nick Desaulniers

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Xref: news.gmane.org gmane.linux.kernel:2860588 gmane.linux.ports.parisc:28921 gmane.comp.video.dri.devel:234962
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2860588>

Replace "fall though" with a proper "fall through" annotation.

This fix is part of the ongoing efforts to enabling
-Wimplicit-fallthrough

Addresses-Coverity-ID: 402013 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/video/fbdev/stifb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
index 045e8af..9e88e3f 100644
--- a/drivers/video/fbdev/stifb.c
+++ b/drivers/video/fbdev/stifb.c
@@ -1157,7 +1157,7 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
 			dev_name);
 		   goto out_err0;
 		}
-		/* fall though */
+		/* fall through */
 	case S9000_ID_ARTIST:
 	case S9000_ID_HCRX:
 	case S9000_ID_TIMBER:
-- 
2.7.4



From - Thu Nov 08 21:41:53 2018
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From: Henrik Austad <henrik@austad.us>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.documentation,gmane.linux.ports.mips.general,gmane.comp.emulators.kvm.devel,gmane.comp.video.dri.devel,gmane.linux.drivers.devicetree,gmane.linux.kernel.lsm,gmane.linux.kernel.gpio,gmane.linux.kbuild.devel,gmane.linux.ports.parisc,gmane.linux.ide,gmane.linux.kernel.pci,gmane.linux.power-management.general,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.linux.network
Subject: [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
Date: Tue,  4 Sep 2018 00:15:23 +0200
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Cc: Mark Rutland <mark.rutland@arm.com>, linux-mips@linux-mips.org,
 linux-fbdev@vger.kernel.org, Jan Kandziora <jjj@gmx.de>, kvm@vger.kernel.org,
 =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= <rkrcmar@redhat.com>,
 Peter Zijlstra <peterz@infradead.org>, James Hogan <jhogan@kernel.org>,
 Linus Walleij <linus.walleij@linaro.org>, Henrik Austad <henrik@austad.us>,
 Will Deacon <will.deacon@arm.com>, dri-devel@lists.freedesktop.org,
 Masahiro Yamada <yamada.masahiro@socionext.com>, devicetree@vger.kernel.org,
 Paul Mackerras <paulus@samba.org>, Henrik Austad <haustad@cisco.com>,
 Pavel Machek <pavel@ucw.cz>, "H. Peter Anvin" <hpa@zytor.com>,
 Evgeniy Polyakov <zbr@ioremap.net>, linux-s390@vger.kernel.org,
 Ian Kent <raven@themaw.net>, linux-security-module@vger.kernel.org,
 Paul Moore <paul@paul-moore.com>, Jonathan Corbet <corbet@lwn.net>,
 Helge Deller <deller@gmx.de>, x86@kernel.org,
 "Jame
To: linux-doc@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ppc.embedded/130224>

This is a respin with a wider audience (all that get_maintainer returned)
and I know this spams a *lot* of people. Not sure what would be the correct
way, so my apologies for ruining your inbox.

The 00-INDEX files are supposed to give a summary of all files present
in a directory, but these files are horribly out of date and their
usefulness is brought into question. Often a simple "ls" would reveal
the same information as the filenames are generally quite descriptive as
a short introduction to what the file covers (it should not surprise
anyone what Documentation/sched/sched-design-CFS.txt covers)

A few years back it was mentioned that these files were no longer really
needed, and they have since then grown further out of date, so perhaps
it is time to just throw them out.

A short status yields the following _outdated_ 00-INDEX files, first
counter is files listed in 00-INDEX but missing in the directory, last
is files present but not listed in 00-INDEX.

List of outdated 00-INDEX:
Documentation: (4/10)
Documentation/sysctl: (0/1)
Documentation/timers: (1/0)
Documentation/blockdev: (3/1)
Documentation/w1/slaves: (0/1)
Documentation/locking: (0/1)
Documentation/devicetree: (0/5)
Documentation/power: (1/1)
Documentation/powerpc: (0/5)
Documentation/arm: (1/0)
Documentation/x86: (0/9)
Documentation/x86/x86_64: (1/1)
Documentation/scsi: (4/4)
Documentation/filesystems: (2/9)
Documentation/filesystems/nfs: (0/2)
Documentation/cgroup-v1: (0/2)
Documentation/kbuild: (0/4)
Documentation/spi: (1/0)
Documentation/virtual/kvm: (1/0)
Documentation/scheduler: (0/2)
Documentation/fb: (0/1)
Documentation/block: (0/1)
Documentation/networking: (6/37)
Documentation/vm: (1/3)

Then there are 364 subdirectories in Documentation/ with several files that
are missing 00-INDEX alltogether (and another 120 with a single file and no
00-INDEX).

I don't really have an opinion to whether or not we /should/ have 00-INDEX,
but the above 00-INDEX should either be removed or be kept up to date. If
we should keep the files, I can try to keep them updated, but I rather not
if we just want to delete them anyway.

As a starting point, remove all index-files and references to 00-INDEX and
see where the discussion is going.

Again, sorry for the insanely wide distribution.

Signed-off-by: Henrik Austad <henrik@austad.us>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Paul Moore <paul@paul-moore.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Evgeniy Polyakov <zbr@ioremap.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Henrik Austad <henrik@austad.us>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ian Kent <raven@themaw.net>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Jan Kandziora <jjj@gmx.de>
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-fbdev@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-ide@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-kbuild@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-security-module@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-spi@vger.kernel.org
Cc: kvm@vger.kernel.org
Signed-off-by: Henrik Austad <haustad@cisco.com>
---
 Documentation/00-INDEX                  | 428 --------------------------------
 Documentation/PCI/00-INDEX              |  26 --
 Documentation/RCU/00-INDEX              |  34 ---
 Documentation/RCU/rcu.txt               |   4 -
 Documentation/admin-guide/README.rst    |   3 +-
 Documentation/arm/00-INDEX              |  50 ----
 Documentation/block/00-INDEX            |  34 ---
 Documentation/blockdev/00-INDEX         |  18 --
 Documentation/cdrom/00-INDEX            |  11 -
 Documentation/cgroup-v1/00-INDEX        |  26 --
 Documentation/devicetree/00-INDEX       |  12 -
 Documentation/fb/00-INDEX               |  75 ------
 Documentation/filesystems/00-INDEX      | 153 ------------
 Documentation/filesystems/nfs/00-INDEX  |  26 --
 Documentation/fmc/00-INDEX              |  38 ---
 Documentation/gpio/00-INDEX             |   4 -
 Documentation/ide/00-INDEX              |  14 --
 Documentation/ioctl/00-INDEX            |  12 -
 Documentation/isdn/00-INDEX             |  42 ----
 Documentation/kbuild/00-INDEX           |  14 --
 Documentation/laptops/00-INDEX          |  16 --
 Documentation/leds/00-INDEX             |  32 ---
 Documentation/locking/00-INDEX          |  16 --
 Documentation/m68k/00-INDEX             |   7 -
 Documentation/mips/00-INDEX             |   4 -
 Documentation/mmc/00-INDEX              |  10 -
 Documentation/netlabel/00-INDEX         |  10 -
 Documentation/netlabel/cipso_ipv4.txt   |  11 +-
 Documentation/netlabel/introduction.txt |   2 +-
 Documentation/networking/00-INDEX       | 234 -----------------
 Documentation/parisc/00-INDEX           |   6 -
 Documentation/power/00-INDEX            |  44 ----
 Documentation/powerpc/00-INDEX          |  34 ---
 Documentation/s390/00-INDEX             |  28 ---
 Documentation/scheduler/00-INDEX        |  18 --
 Documentation/scsi/00-INDEX             | 108 --------
 Documentation/serial/00-INDEX           |  16 --
 Documentation/spi/00-INDEX              |  16 --
 Documentation/sysctl/00-INDEX           |  16 --
 Documentation/timers/00-INDEX           |  16 --
 Documentation/virtual/00-INDEX          |  11 -
 Documentation/virtual/kvm/00-INDEX      |  35 ---
 Documentation/vm/00-INDEX               |  50 ----
 Documentation/w1/00-INDEX               |  10 -
 Documentation/w1/masters/00-INDEX       |  12 -
 Documentation/w1/slaves/00-INDEX        |  14 --
 Documentation/x86/00-INDEX              |  20 --
 Documentation/x86/x86_64/00-INDEX       |  16 --
 README                                  |   1 -
 scripts/check_00index.sh                |  67 -----
 50 files changed, 8 insertions(+), 1896 deletions(-)
 delete mode 100644 Documentation/00-INDEX
 delete mode 100644 Documentation/PCI/00-INDEX
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 delete mode 100644 Documentation/isdn/00-INDEX
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 delete mode 100755 scripts/check_00index.sh

diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX
deleted file mode 100644
index 2754fe8..0000000
--- a/Documentation/00-INDEX
+++ /dev/null
@@ -1,428 +0,0 @@
-
-This is a brief list of all the files in ./linux/Documentation and what
-they contain. If you add a documentation file, please list it here in
-alphabetical order as well, or risk being hunted down like a rabid dog.
-Please keep the descriptions small enough to fit on one line.
-							 Thanks -- Paul G.
-
-Following translations are available on the WWW:
-
-   - Japanese, maintained by the JF Project (jf@listserv.linux.or.jp), at
-     http://linuxjf.sourceforge.jp/
-
-00-INDEX
-	- this file.
-ABI/
-	- info on kernel <-> userspace ABI and relative interface stability.
-CodingStyle
-	- nothing here, just a pointer to process/coding-style.rst.
-DMA-API.txt
-	- DMA API, pci_ API & extensions for non-consistent memory machines.
-DMA-API-HOWTO.txt
-	- Dynamic DMA mapping Guide
-DMA-ISA-LPC.txt
-	- How to do DMA with ISA (and LPC) devices.
-DMA-attributes.txt
-	- listing of the various possible attributes a DMA region can have
-EDID/
-	- directory with info on customizing EDID for broken gfx/displays.
-IPMI.txt
-	- info on Linux Intelligent Platform Management Interface (IPMI) Driver.
-IRQ-affinity.txt
-	- how to select which CPU(s) handle which interrupt events on SMP.
-IRQ-domain.txt
-	- info on interrupt numbering and setting up IRQ domains.
-IRQ.txt
-	- description of what an IRQ is.
-Intel-IOMMU.txt
-	- basic info on the Intel IOMMU virtualization support.
-Makefile
-	- It's not of interest for those who aren't touching the build system.
-PCI/
-	- info related to PCI drivers.
-RCU/
-	- directory with info on RCU (read-copy update).
-SAK.txt
-	- info on Secure Attention Keys.
-SM501.txt
-	- Silicon Motion SM501 multimedia companion chip
-SubmittingPatches
-	- nothing here, just a pointer to process/coding-style.rst.
-accounting/
-	- documentation on accounting and taskstats.
-acpi/
-	- info on ACPI-specific hooks in the kernel.
-admin-guide/
-	- info related to Linux users and system admins.
-aoe/
-	- description of AoE (ATA over Ethernet) along with config examples.
-arm/
-	- directory with info about Linux on the ARM architecture.
-arm64/
-	- directory with info about Linux on the 64 bit ARM architecture.
-auxdisplay/
-	- misc. LCD driver documentation (cfag12864b, ks0108).
-backlight/
-	- directory with info on controlling backlights in flat panel displays
-block/
-	- info on the Block I/O (BIO) layer.
-blockdev/
-	- info on block devices & drivers
-bt8xxgpio.txt
-	- info on how to modify a bt8xx video card for GPIO usage.
-btmrvl.txt
-	- info on Marvell Bluetooth driver usage.
-bus-devices/
-	- directory with info on TI GPMC (General Purpose Memory Controller)
-bus-virt-phys-mapping.txt
-	- how to access I/O mapped memory from within device drivers.
-cdrom/
-	- directory with information on the CD-ROM drivers that Linux has.
-cgroup-v1/
-	- cgroups v1 features, including cpusets and memory controller.
-cma/
-	- Continuous Memory Area (CMA) debugfs interface.
-conf.py
-	- It's not of interest for those who aren't touching the build system.
-connector/
-	- docs on the netlink based userspace<->kernel space communication mod.
-console/
-	- documentation on Linux console drivers.
-core-api/
-	- documentation on kernel core components.
-cpu-freq/
-	- info on CPU frequency and voltage scaling.
-cpu-hotplug.txt
-	- document describing CPU hotplug support in the Linux kernel.
-cpu-load.txt
-	- document describing how CPU load statistics are collected.
-cpuidle/
-	- info on CPU_IDLE, CPU idle state management subsystem.
-cputopology.txt
-	- documentation on how CPU topology info is exported via sysfs.
-crc32.txt
-	- brief tutorial on CRC computation
-crypto/
-	- directory with info on the Crypto API.
-dcdbas.txt
-	- information on the Dell Systems Management Base Driver.
-debugging-modules.txt
-	- some notes on debugging modules after Linux 2.6.3.
-debugging-via-ohci1394.txt
-	- how to use firewire like a hardware debugger memory reader.
-dell_rbu.txt
-	- document demonstrating the use of the Dell Remote BIOS Update driver.
-dev-tools/
-	- directory with info on development tools for the kernel.
-device-mapper/
-	- directory with info on Device Mapper.
-dmaengine/
-	- the DMA engine and controller API guides.
-devicetree/
-	- directory with info on device tree files used by OF/PowerPC/ARM
-digsig.txt
-	-info on the Digital Signature Verification API
-dma-buf-sharing.txt
-	- the DMA Buffer Sharing API Guide
-docutils.conf
-	- nothing here. Just a configuration file for docutils.
-dontdiff
-	- file containing a list of files that should never be diff'ed.
-driver-api/
-	- the Linux driver implementer's API guide.
-driver-model/
-	- directory with info about Linux driver model.
-early-userspace/
-	- info about initramfs, klibc, and userspace early during boot.
-efi-stub.txt
-	- How to use the EFI boot stub to bypass GRUB or elilo on EFI systems.
-eisa.txt
-	- info on EISA bus support.
-extcon/
-	- directory with porting guide for Android kernel switch driver.
-isa.txt
-	- info on EISA bus support.
-fault-injection/
-	- dir with docs about the fault injection capabilities infrastructure.
-fb/
-	- directory with info on the frame buffer graphics abstraction layer.
-features/
-	- status of feature implementation on different architectures.
-filesystems/
-	- info on the vfs and the various filesystems that Linux supports.
-firmware_class/
-	- request_firmware() hotplug interface info.
-flexible-arrays.txt
-	- how to make use of flexible sized arrays in linux
-fmc/
-	- information about the FMC bus abstraction
-fpga/
-	- FPGA Manager Core.
-futex-requeue-pi.txt
-	- info on requeueing of tasks from a non-PI futex to a PI futex
-gcc-plugins.txt
-	- GCC plugin infrastructure.
-gpio/
-	- gpio related documentation
-gpu/
-	- directory with information on GPU driver developer's guide.
-hid/
-	- directory with information on human interface devices
-highuid.txt
-	- notes on the change from 16 bit to 32 bit user/group IDs.
-hwspinlock.txt
-	- hardware spinlock provides hardware assistance for synchronization
-timers/
-	- info on the timer related topics
-hw_random.txt
-	- info on Linux support for random number generator in i8xx chipsets.
-hwmon/
-	- directory with docs on various hardware monitoring drivers.
-i2c/
-	- directory with info about the I2C bus/protocol (2 wire, kHz speed).
-x86/i386/
-	- directory with info about Linux on Intel 32 bit architecture.
-ia64/
-	- directory with info about Linux on Intel 64 bit architecture.
-ide/
-	- Information regarding the Enhanced IDE drive.
-iio/
-	- info on industrial IIO configfs support.
-index.rst
-	- main index for the documentation at ReST format.
-infiniband/
-	- directory with documents concerning Linux InfiniBand support.
-input/
-	- info on Linux input device support.
-intel_txt.txt
-	- info on intel Trusted Execution Technology (intel TXT).
-io-mapping.txt
-	- description of io_mapping functions in linux/io-mapping.h
-io_ordering.txt
-	- info on ordering I/O writes to memory-mapped addresses.
-ioctl/
-	- directory with documents describing various IOCTL calls.
-iostats.txt
-	- info on I/O statistics Linux kernel provides.
-irqflags-tracing.txt
-	- how to use the irq-flags tracing feature.
-isapnp.txt
-	- info on Linux ISA Plug & Play support.
-isdn/
-	- directory with info on the Linux ISDN support, and supported cards.
-kbuild/
-	- directory with info about the kernel build process.
-kdump/
-	- directory with mini HowTo on getting the crash dump code to work.
-doc-guide/
-	- how to write and format reStructuredText kernel documentation
-kernel-per-CPU-kthreads.txt
-	- List of all per-CPU kthreads and how they introduce jitter.
-kobject.txt
-	- info of the kobject infrastructure of the Linux kernel.
-kprobes.txt
-	- documents the kernel probes debugging feature.
-kref.txt
-	- docs on adding reference counters (krefs) to kernel objects.
-laptops/
-	- directory with laptop related info and laptop driver documentation.
-ldm.txt
-	- a brief description of LDM (Windows Dynamic Disks).
-leds/
-	- directory with info about LED handling under Linux.
-livepatch/
-	- info on kernel live patching.
-locking/
-	- directory with info about kernel locking primitives
-lockup-watchdogs.txt
-	- info on soft and hard lockup detectors (aka nmi_watchdog).
-logo.gif
-	- full colour GIF image of Linux logo (penguin - Tux).
-logo.txt
-	- info on creator of above logo & site to get additional images from.
-lsm.txt
-	- Linux Security Modules: General Security Hooks for Linux
-lzo.txt
-	- kernel LZO decompressor input formats
-m68k/
-	- directory with info about Linux on Motorola 68k architecture.
-mailbox.txt
-	- How to write drivers for the common mailbox framework (IPC).
-md/
-	- directory with info about Linux Software RAID
-media/
-	- info on media drivers: uAPI, kAPI and driver documentation.
-memory-barriers.txt
-	- info on Linux kernel memory barriers.
-memory-devices/
-	- directory with info on parts like the Texas Instruments EMIF driver
-memory-hotplug.txt
-	- Hotpluggable memory support, how to use and current status.
-men-chameleon-bus.txt
-	- info on MEN chameleon bus.
-mic/
-	- Intel Many Integrated Core (MIC) architecture device driver.
-mips/
-	- directory with info about Linux on MIPS architecture.
-misc-devices/
-	- directory with info about devices using the misc dev subsystem
-mmc/
-	- directory with info about the MMC subsystem
-mtd/
-	- directory with info about memory technology devices (flash)
-namespaces/
-	- directory with various information about namespaces
-netlabel/
-	- directory with information on the NetLabel subsystem.
-networking/
-	- directory with info on various aspects of networking with Linux.
-nfc/
-	- directory relating info about Near Field Communications support.
-nios2/
-	- Linux on the Nios II architecture.
-nommu-mmap.txt
-	- documentation about no-mmu memory mapping support.
-numastat.txt
-	- info on how to read Numa policy hit/miss statistics in sysfs.
-ntb.txt
-	- info on Non-Transparent Bridge (NTB) drivers.
-nvdimm/
-	- info on non-volatile devices.
-nvmem/
-	- info on non volatile memory framework.
-output/
-	- default directory where html/LaTeX/pdf files will be written.
-padata.txt
-	- An introduction to the "padata" parallel execution API
-parisc/
-	- directory with info on using Linux on PA-RISC architecture.
-parport-lowlevel.txt
-	- description and usage of the low level parallel port functions.
-pcmcia/
-	- info on the Linux PCMCIA driver.
-percpu-rw-semaphore.txt
-	- RCU based read-write semaphore optimized for locking for reading
-perf/
-	- info about the APM X-Gene SoC Performance Monitoring Unit (PMU).
-phy/
-	- ino on Samsung USB 2.0 PHY adaptation layer.
-phy.txt
-	- Description of the generic PHY framework.
-pi-futex.txt
-	- documentation on lightweight priority inheritance futexes.
-pinctrl.txt
-	- info on pinctrl subsystem and the PINMUX/PINCONF and drivers
-platform/
-	- List of supported hardware by compal and Dell laptop.
-pnp.txt
-	- Linux Plug and Play documentation.
-power/
-	- directory with info on Linux PCI power management.
-powerpc/
-	- directory with info on using Linux with the PowerPC.
-prctl/
-	- directory with info on the priveledge control subsystem
-preempt-locking.txt
-	- info on locking under a preemptive kernel.
-process/
-	- how to work with the mainline kernel development process.
-pps/
-	- directory with information on the pulse-per-second support
-pti/
-	- directory with info on Intel MID PTI.
-ptp/
-	- directory with info on support for IEEE 1588 PTP clocks in Linux.
-pwm.txt
-	- info on the pulse width modulation driver subsystem
-rapidio/
-	- directory with info on RapidIO packet-based fabric interconnect
-rbtree.txt
-	- info on what red-black trees are and what they are for.
-remoteproc.txt
-	- info on how to handle remote processor (e.g. AMP) offloads/usage.
-rfkill.txt
-	- info on the radio frequency kill switch subsystem/support.
-robust-futex-ABI.txt
-	- documentation of the robust futex ABI.
-robust-futexes.txt
-	- a description of what robust futexes are.
-rpmsg.txt
-	- info on the Remote Processor Messaging (rpmsg) Framework
-rtc.txt
-	- notes on how to use the Real Time Clock (aka CMOS clock) driver.
-s390/
-	- directory with info on using Linux on the IBM S390.
-scheduler/
-	- directory with info on the scheduler.
-scsi/
-	- directory with info on Linux scsi support.
-security/
-	- directory that contains security-related info
-serial/
-	- directory with info on the low level serial API.
-sgi-ioc4.txt
-	- description of the SGI IOC4 PCI (multi function) device.
-sh/
-	- directory with info on porting Linux to a new architecture.
-smsc_ece1099.txt
-	-info on the smsc Keyboard Scan Expansion/GPIO Expansion device.
-sound/
-	- directory with info on sound card support.
-spi/
-	- overview of Linux kernel Serial Peripheral Interface (SPI) support.
-sphinx/
-	- no documentation here, just files required by Sphinx toolchain.
-sphinx-static/
-	- no documentation here, just files required by Sphinx toolchain.
-static-keys.txt
-	- info on how static keys allow debug code in hotpaths via patching
-svga.txt
-	- short guide on selecting video modes at boot via VGA BIOS.
-sync_file.txt
-	- Sync file API guide.
-sysctl/
-	- directory with info on the /proc/sys/* files.
-target/
-	- directory with info on generating TCM v4 fabric .ko modules
-tee.txt
-	- info on the TEE subsystem and drivers
-this_cpu_ops.txt
-	- List rationale behind and the way to use this_cpu operations.
-thermal/
-	- directory with information on managing thermal issues (CPU/temp)
-trace/
-	- directory with info on tracing technologies within linux
-translations/
-	- translations of this document from English to another language
-unaligned-memory-access.txt
-	- info on how to avoid arch breaking unaligned memory access in code.
-unshare.txt
-	- description of the Linux unshare system call.
-usb/
-	- directory with info regarding the Universal Serial Bus.
-vfio.txt
-	- info on Virtual Function I/O used in guest/hypervisor instances.
-video-output.txt
-	- sysfs class driver interface to enable/disable a video output device.
-virtual/
-	- directory with information on the various linux virtualizations.
-vm/
-	- directory with info on the Linux vm code.
-w1/
-	- directory with documents regarding the 1-wire (w1) subsystem.
-watchdog/
-	- how to auto-reboot Linux if it has "fallen and can't get up". ;-)
-wimax/
-	- directory with info about Intel Wireless Wimax Connections
-core-api/workqueue.rst
-	- information on the Concurrency Managed Workqueue implementation
-x86/x86_64/
-	- directory with info on Linux support for AMD x86-64 (Hammer) machines.
-xillybus.txt
-	- Overview and basic ui of xillybus driver
-xtensa/
-	- directory with documents relating to arch/xtensa port/implementation
-xz.txt
-	- how to make use of the XZ data compression within linux kernel
-zorro.txt
-	- info on writing drivers for Zorro bus devices found on Amigas.
diff --git a/Documentation/PCI/00-INDEX b/Documentation/PCI/00-INDEX
deleted file mode 100644
index 206b1d5..0000000
--- a/Documentation/PCI/00-INDEX
+++ /dev/null
@@ -1,26 +0,0 @@
-00-INDEX
-	- this file
-acpi-info.txt
-	- info on how PCI host bridges are represented in ACPI
-MSI-HOWTO.txt
-	- the Message Signaled Interrupts (MSI) Driver Guide HOWTO and FAQ.
-PCIEBUS-HOWTO.txt
-	- a guide describing the PCI Express Port Bus driver
-pci-error-recovery.txt
-	- info on PCI error recovery
-pci-iov-howto.txt
-	- the PCI Express I/O Virtualization HOWTO
-pci.txt
-	- info on the PCI subsystem for device driver authors
-pcieaer-howto.txt
-	- the PCI Express Advanced Error Reporting Driver Guide HOWTO
-endpoint/pci-endpoint.txt
-	- guide to add endpoint controller driver and endpoint function driver.
-endpoint/pci-endpoint-cfs.txt
-	- guide to use configfs to configure the PCI endpoint function.
-endpoint/pci-test-function.txt
-	- specification of *PCI test* function device.
-endpoint/pci-test-howto.txt
-	- userguide for PCI endpoint test function.
-endpoint/function/binding/
-	- binding documentation for PCI endpoint function
diff --git a/Documentation/RCU/00-INDEX b/Documentation/RCU/00-INDEX
deleted file mode 100644
index f46980c..0000000
--- a/Documentation/RCU/00-INDEX
+++ /dev/null
@@ -1,34 +0,0 @@
-00-INDEX
-	- This file
-arrayRCU.txt
-	- Using RCU to Protect Read-Mostly Arrays
-checklist.txt
-	- Review Checklist for RCU Patches
-listRCU.txt
-	- Using RCU to Protect Read-Mostly Linked Lists
-lockdep.txt
-	- RCU and lockdep checking
-lockdep-splat.txt
-	- RCU Lockdep splats explained.
-NMI-RCU.txt
-	- Using RCU to Protect Dynamic NMI Handlers
-rcu_dereference.txt
-	- Proper care and feeding of return values from rcu_dereference()
-rcubarrier.txt
-	- RCU and Unloadable Modules
-rculist_nulls.txt
-	- RCU list primitives for use with SLAB_TYPESAFE_BY_RCU
-rcuref.txt
-	- Reference-count design for elements of lists/arrays protected by RCU
-rcu.txt
-	- RCU Concepts
-RTFP.txt
-	- List of RCU papers (bibliography) going back to 1980.
-stallwarn.txt
-	- RCU CPU stall warnings (module parameter rcu_cpu_stall_suppress)
-torture.txt
-	- RCU Torture Test Operation (CONFIG_RCU_TORTURE_TEST)
-UP.txt
-	- RCU on Uniprocessor Systems
-whatisRCU.txt
-	- What is RCU?
diff --git a/Documentation/RCU/rcu.txt b/Documentation/RCU/rcu.txt
index 7d4ae11..721b3e4 100644
--- a/Documentation/RCU/rcu.txt
+++ b/Documentation/RCU/rcu.txt
@@ -87,7 +87,3 @@ o	Where can I find more information on RCU?
 
 	See the RTFP.txt file in this directory.
 	Or point your browser at http://www.rdrop.com/users/paulmck/RCU/.
-
-o	What are all these files in this directory?
-
-	See 00-INDEX for the list.
diff --git a/Documentation/admin-guide/README.rst b/Documentation/admin-guide/README.rst
index 15ea785..0797eec 100644
--- a/Documentation/admin-guide/README.rst
+++ b/Documentation/admin-guide/README.rst
@@ -51,8 +51,7 @@ Documentation
 
  - There are various README files in the Documentation/ subdirectory:
    these typically contain kernel-specific installation notes for some
-   drivers for example. See Documentation/00-INDEX for a list of what
-   is contained in each file.  Please read the
+   drivers for example. Please read the
    :ref:`Documentation/process/changes.rst <changes>` file, as it
    contains information about the problems, which may result by upgrading
    your kernel.
diff --git a/Documentation/arm/00-INDEX b/Documentation/arm/00-INDEX
deleted file mode 100644
index b6e69fd..0000000
--- a/Documentation/arm/00-INDEX
+++ /dev/null
@@ -1,50 +0,0 @@
-00-INDEX
-	- this file
-Booting
-	- requirements for booting
-CCN.txt
-	- Cache Coherent Network ring-bus and perf PMU driver.
-Interrupts
-	- ARM Interrupt subsystem documentation
-IXP4xx
-	- Intel IXP4xx Network processor.
-Netwinder
-	- Netwinder specific documentation
-Porting
-       - Symbol definitions for porting Linux to a new ARM machine.
-Setup
-       - Kernel initialization parameters on ARM Linux
-README
-	- General ARM documentation
-SA1100/
-	- SA1100 documentation
-Samsung-S3C24XX/
-	- S3C24XX ARM Linux Overview
-SPEAr/
-	- ST SPEAr platform Linux Overview
-VFP/
-	- Release notes for Linux Kernel Vector Floating Point support code
-cluster-pm-race-avoidance.txt
-	- Algorithm for CPU and Cluster setup/teardown
-empeg/
-	- Ltd's Empeg MP3 Car Audio Player
-firmware.txt
-	- Secure firmware registration and calling.
-kernel_mode_neon.txt
-	- How to use NEON instructions in kernel mode
-kernel_user_helpers.txt
-	- Helper functions in kernel space made available for userspace.
-mem_alignment
-	- alignment abort handler documentation
-memory.txt
-	- description of the virtual memory layout
-nwfpe/
-	- NWFPE floating point emulator documentation
-swp_emulation
-	- SWP/SWPB emulation handler/logging description
-tcm.txt
-	- ARM Tightly Coupled Memory
-uefi.txt
-	- [U]EFI configuration and runtime services documentation
-vlocks.txt
-	- Voting locks, low-level mechanism relying on memory system atomic writes.
diff --git a/Documentation/block/00-INDEX b/Documentation/block/00-INDEX
deleted file mode 100644
index 8d55b4b..0000000
--- a/Documentation/block/00-INDEX
+++ /dev/null
@@ -1,34 +0,0 @@
-00-INDEX
-	- This file
-bfq-iosched.txt
-	- BFQ IO scheduler and its tunables
-biodoc.txt
-	- Notes on the Generic Block Layer Rewrite in Linux 2.5
-biovecs.txt
-	- Immutable biovecs and biovec iterators
-capability.txt
-	- Generic Block Device Capability (/sys/block/<device>/capability)
-cfq-iosched.txt
-	- CFQ IO scheduler tunables
-cmdline-partition.txt
-	- how to specify block device partitions on kernel command line
-data-integrity.txt
-	- Block data integrity
-deadline-iosched.txt
-	- Deadline IO scheduler tunables
-ioprio.txt
-	- Block io priorities (in CFQ scheduler)
-pr.txt
-	- Block layer support for Persistent Reservations
-null_blk.txt
-	- Null block for block-layer benchmarking.
-queue-sysfs.txt
-	- Queue's sysfs entries
-request.txt
-	- The members of struct request (in include/linux/blkdev.h)
-stat.txt
-	- Block layer statistics in /sys/block/<device>/stat
-switching-sched.txt
-	- Switching I/O schedulers at runtime
-writeback_cache_control.txt
-	- Control of volatile write back caches
diff --git a/Documentation/blockdev/00-INDEX b/Documentation/blockdev/00-INDEX
deleted file mode 100644
index c08df56..0000000
--- a/Documentation/blockdev/00-INDEX
+++ /dev/null
@@ -1,18 +0,0 @@
-00-INDEX
-	- this file
-README.DAC960
-	- info on Mylex DAC960/DAC1100 PCI RAID Controller Driver for Linux.
-cciss.txt
-	- info, major/minor #'s for Compaq's SMART Array Controllers.
-cpqarray.txt
-	- info on using Compaq's SMART2 Intelligent Disk Array Controllers.
-floppy.txt
-	- notes and driver options for the floppy disk driver.
-mflash.txt
-	- info on mGine m(g)flash driver for linux.
-nbd.txt
-	- info on a TCP implementation of a network block device.
-paride.txt
-	- information about the parallel port IDE subsystem.
-ramdisk.txt
-	- short guide on how to set up and use the RAM disk.
diff --git a/Documentation/cdrom/00-INDEX b/Documentation/cdrom/00-INDEX
deleted file mode 100644
index 433edf2..0000000
--- a/Documentation/cdrom/00-INDEX
+++ /dev/null
@@ -1,11 +0,0 @@
-00-INDEX
-	- this file (info on CD-ROMs and Linux)
-Makefile
-	- only used to generate TeX output from the documentation.
-cdrom-standard.tex
-	- LaTeX document on standardizing the CD-ROM programming interface.
-ide-cd
-	- info on setting up and using ATAPI (aka IDE) CD-ROMs.
-packet-writing.txt
-	- Info on the CDRW packet writing module
-
diff --git a/Documentation/cgroup-v1/00-INDEX b/Documentation/cgroup-v1/00-INDEX
deleted file mode 100644
index 13e0c85..0000000
--- a/Documentation/cgroup-v1/00-INDEX
+++ /dev/null
@@ -1,26 +0,0 @@
-00-INDEX
-	- this file
-blkio-controller.txt
-	- Description for Block IO Controller, implementation and usage details.
-cgroups.txt
-	- Control Groups definition, implementation details, examples and API.
-cpuacct.txt
-	- CPU Accounting Controller; account CPU usage for groups of tasks.
-cpusets.txt
-	- documents the cpusets feature; assign CPUs and Mem to a set of tasks.
-admin-guide/devices.rst
-	- Device Whitelist Controller; description, interface and security.
-freezer-subsystem.txt
-	- checkpointing; rationale to not use signals, interface.
-hugetlb.txt
-	- HugeTLB Controller implementation and usage details.
-memcg_test.txt
-	- Memory Resource Controller; implementation details.
-memory.txt
-	- Memory Resource Controller; design, accounting, interface, testing.
-net_cls.txt
-	- Network classifier cgroups details and usages.
-net_prio.txt
-	- Network priority cgroups details and usages.
-pids.txt
-	- Process number cgroups details and usages.
diff --git a/Documentation/devicetree/00-INDEX b/Documentation/devicetree/00-INDEX
deleted file mode 100644
index 8c4102c..0000000
--- a/Documentation/devicetree/00-INDEX
+++ /dev/null
@@ -1,12 +0,0 @@
-Documentation for device trees, a data structure by which bootloaders pass
-hardware layout to Linux in a device-independent manner, simplifying hardware
-probing.  This subsystem is maintained by Grant Likely
-<grant.likely@secretlab.ca> and has a mailing list at
-https://lists.ozlabs.org/listinfo/devicetree-discuss
-
-00-INDEX
-	- this file
-booting-without-of.txt
-	- Booting Linux without Open Firmware, describes history and format of device trees.
-usage-model.txt
-	- How Linux uses DT and what DT aims to solve.
\ No newline at end of file
diff --git a/Documentation/fb/00-INDEX b/Documentation/fb/00-INDEX
deleted file mode 100644
index fe85e7c..0000000
--- a/Documentation/fb/00-INDEX
+++ /dev/null
@@ -1,75 +0,0 @@
-Index of files in Documentation/fb.  If you think something about frame
-buffer devices needs an entry here, needs correction or you've written one
-please mail me.
-				    Geert Uytterhoeven <geert@linux-m68k.org>
-
-00-INDEX
-	- this file.
-api.txt
-	- The frame buffer API between applications and buffer devices.
-arkfb.txt
-	- info on the fbdev driver for ARK Logic chips.
-aty128fb.txt
-	- info on the ATI Rage128 frame buffer driver.
-cirrusfb.txt
-	- info on the driver for Cirrus Logic chipsets.
-cmap_xfbdev.txt
-	- an introduction to fbdev's cmap structures.
-deferred_io.txt
-	- an introduction to deferred IO.
-efifb.txt
-	- info on the EFI platform driver for Intel based Apple computers.
-ep93xx-fb.txt
-	- info on the driver for EP93xx LCD controller.
-fbcon.txt
-	- intro to and usage guide for the framebuffer console (fbcon).
-framebuffer.txt
-	- introduction to frame buffer devices.
-gxfb.txt
-	- info on the framebuffer driver for AMD Geode GX2 based processors.
-intel810.txt
-	- documentation for the Intel 810/815 framebuffer driver.
-intelfb.txt
-	- docs for Intel 830M/845G/852GM/855GM/865G/915G/945G fb driver.
-internals.txt
-	- quick overview of frame buffer device internals.
-lxfb.txt
-	- info on the framebuffer driver for AMD Geode LX based processors.
-matroxfb.txt
-	- info on the Matrox framebuffer driver for Alpha, Intel and PPC.
-metronomefb.txt
-	- info on the driver for the Metronome display controller.
-modedb.txt
-	- info on the video mode database.
-pvr2fb.txt
-	- info on the PowerVR 2 frame buffer driver.
-pxafb.txt
-	- info on the driver for the PXA25x LCD controller.
-s3fb.txt
-	- info on the fbdev driver for S3 Trio/Virge chips.
-sa1100fb.txt
-	- information about the driver for the SA-1100 LCD controller.
-sh7760fb.txt
-	- info on the SH7760/SH7763 integrated LCDC Framebuffer driver.
-sisfb.txt
-	- info on the framebuffer device driver for various SiS chips.
-sm501.txt
-	- info on the framebuffer device driver for sm501 videoframebuffer.
-sstfb.txt
-	- info on the frame buffer driver for 3dfx' Voodoo Graphics boards.
-tgafb.txt
-	- info on the TGA (DECChip 21030) frame buffer driver.
-tridentfb.txt
-	info on the framebuffer driver for some Trident chip based cards.
-udlfb.txt
-	- Driver for DisplayLink USB 2.0 chips.
-uvesafb.txt
-	- info on the userspace VESA (VBE2+ compliant) frame buffer device.
-vesafb.txt
-	- info on the VESA frame buffer device.
-viafb.modes
-	- list of modes for VIA Integration Graphic Chip.
-viafb.txt
-	- info on the VIA Integration Graphic Chip console framebuffer driver.
-vt8623fb.txt
-	- info on the fb driver for the graphics core in VIA VT8623 chipsets.
diff --git a/Documentation/filesystems/00-INDEX b/Documentation/filesystems/00-INDEX
deleted file mode 100644
index 0937bad..0000000
--- a/Documentation/filesystems/00-INDEX
+++ /dev/null
@@ -1,153 +0,0 @@
-00-INDEX
-	- this file (info on some of the filesystems supported by linux).
-Locking
-	- info on locking rules as they pertain to Linux VFS.
-9p.txt
-	- 9p (v9fs) is an implementation of the Plan 9 remote fs protocol.
-adfs.txt
-	- info and mount options for the Acorn Advanced Disc Filing System.
-afs.txt
-	- info and examples for the distributed AFS (Andrew File System) fs.
-affs.txt
-	- info and mount options for the Amiga Fast File System.
-autofs-mount-control.txt
-	- info on device control operations for autofs module.
-automount-support.txt
-	- information about filesystem automount support.
-befs.txt
-	- information about the BeOS filesystem for Linux.
-bfs.txt
-	- info for the SCO UnixWare Boot Filesystem (BFS).
-btrfs.txt
-	- info for the BTRFS filesystem.
-caching/
-	- directory containing filesystem cache documentation.
-ceph.txt
-	- info for the Ceph Distributed File System.
-cifs/
-	- directory containing CIFS filesystem documentation and example code.
-coda.txt
-	- description of the CODA filesystem.
-configfs/
-	- directory containing configfs documentation and example code.
-cramfs.txt
-	- info on the cram filesystem for small storage (ROMs etc).
-dax.txt
-	- info on avoiding the page cache for files stored on CPU-addressable
-	  storage devices.
-debugfs.txt
-	- info on the debugfs filesystem.
-devpts.txt
-	- info on the devpts filesystem.
-directory-locking
-	- info about the locking scheme used for directory operations.
-dlmfs.txt
-	- info on the userspace interface to the OCFS2 DLM.
-dnotify.txt
-	- info about directory notification in Linux.
-dnotify_test.c
-	- example program for dnotify.
-ecryptfs.txt
-	- docs on eCryptfs: stacked cryptographic filesystem for Linux.
-efivarfs.txt
-	- info for the efivarfs filesystem.
-exofs.txt
-	- info, usage, mount options, design about EXOFS.
-ext2.txt
-	- info, mount options and specifications for the Ext2 filesystem.
-ext3.txt
-	- info, mount options and specifications for the Ext3 filesystem.
-ext4.txt
-	- info, mount options and specifications for the Ext4 filesystem.
-f2fs.txt
-	- info and mount options for the F2FS filesystem.
-fiemap.txt
-	- info on fiemap ioctl.
-files.txt
-	- info on file management in the Linux kernel.
-fuse.txt
-	- info on the Filesystem in User SpacE including mount options.
-gfs2-glocks.txt
-	- info on the Global File System 2 - Glock internal locking rules.
-gfs2-uevents.txt
-	- info on the Global File System 2 - uevents.
-gfs2.txt
-	- info on the Global File System 2.
-hfs.txt
-	- info on the Macintosh HFS Filesystem for Linux.
-hfsplus.txt
-	- info on the Macintosh HFSPlus Filesystem for Linux.
-hpfs.txt
-	- info and mount options for the OS/2 HPFS.
-inotify.txt
-	- info on the powerful yet simple file change notification system.
-isofs.txt
-	- info and mount options for the ISO 9660 (CDROM) filesystem.
-jfs.txt
-	- info and mount options for the JFS filesystem.
-locks.txt
-	- info on file locking implementations, flock() vs. fcntl(), etc.
-mandatory-locking.txt
-	- info on the Linux implementation of Sys V mandatory file locking.
-nfs/
-	- nfs-related documentation.
-nilfs2.txt
-	- info and mount options for the NILFS2 filesystem.
-ntfs.txt
-	- info and mount options for the NTFS filesystem (Windows NT).
-ocfs2.txt
-	- info and mount options for the OCFS2 clustered filesystem.
-omfs.txt
-	- info on the Optimized MPEG FileSystem.
-path-lookup.txt
-	- info on path walking and name lookup locking.
-pohmelfs/
-	- directory containing pohmelfs filesystem documentation.
-porting
-	- various information on filesystem porting.
-proc.txt
-	- info on Linux's /proc filesystem.
-qnx6.txt
-	- info on the QNX6 filesystem.
-quota.txt
-	- info on Quota subsystem.
-ramfs-rootfs-initramfs.txt
-	- info on the 'in memory' filesystems ramfs, rootfs and initramfs.
-relay.txt
-	- info on relay, for efficient streaming from kernel to user space.
-romfs.txt
-	- description of the ROMFS filesystem.
-seq_file.txt
-	- how to use the seq_file API.
-sharedsubtree.txt
-	- a description of shared subtrees for namespaces.
-spufs.txt
-	- info and mount options for the SPU filesystem used on Cell.
-squashfs.txt
-	- info on the squashfs filesystem.
-sysfs-pci.txt
-	- info on accessing PCI device resources through sysfs.
-sysfs-tagging.txt
-	- info on sysfs tagging to avoid duplicates.
-sysfs.txt
-	- info on sysfs, a ram-based filesystem for exporting kernel objects.
-sysv-fs.txt
-	- info on the SystemV/V7/Xenix/Coherent filesystem.
-tmpfs.txt
-	- info on tmpfs, a filesystem that holds all files in virtual memory.
-ubifs.txt
-	- info on the Unsorted Block Images FileSystem.
-udf.txt
-	- info and mount options for the UDF filesystem.
-ufs.txt
-	- info on the ufs filesystem.
-vfat.txt
-	- info on using the VFAT filesystem used in Windows NT and Windows 95.
-vfs.txt
-	- overview of the Virtual File System.
-xfs-delayed-logging-design.txt
-	- info on the XFS Delayed Logging Design.
-xfs-self-describing-metadata.txt
-	- info on XFS Self Describing Metadata.
-xfs.txt
-	- info and mount options for the XFS filesystem.
diff --git a/Documentation/filesystems/nfs/00-INDEX b/Documentation/filesystems/nfs/00-INDEX
deleted file mode 100644
index 53f3b59..0000000
--- a/Documentation/filesystems/nfs/00-INDEX
+++ /dev/null
@@ -1,26 +0,0 @@
-00-INDEX
-	- this file (nfs-related documentation).
-Exporting
-	- explanation of how to make filesystems exportable.
-fault_injection.txt
-	- information for using fault injection on the server
-knfsd-stats.txt
-	- statistics which the NFS server makes available to user space.
-nfs.txt
-	- nfs client, and DNS resolution for fs_locations.
-nfs41-server.txt
-	- info on the Linux server implementation of NFSv4 minor version 1.
-nfs-rdma.txt
-	- how to install and setup the Linux NFS/RDMA client and server software
-nfsd-admin-interfaces.txt
-	- Administrative interfaces for nfsd.
-nfsroot.txt
-	- short guide on setting up a diskless box with NFS root filesystem.
-pnfs.txt
-	- short explanation of some of the internals of the pnfs client code
-rpc-cache.txt
-	- introduction to the caching mechanisms in the sunrpc layer.
-idmapper.txt
-	- information for configuring request-keys to be used by idmapper
-rpc-server-gss.txt
-	- Information on GSS authentication support in the NFS Server
diff --git a/Documentation/fmc/00-INDEX b/Documentation/fmc/00-INDEX
deleted file mode 100644
index 431c695..0000000
--- a/Documentation/fmc/00-INDEX
+++ /dev/null
@@ -1,38 +0,0 @@
-
-Documentation in this directory comes from sections of the manual we
-wrote for the externally-developed fmc-bus package. The complete
-manual as of today (2013-02) is available in PDF format at
-http://www.ohwr.org/projects/fmc-bus/files
-
-00-INDEX
-	- this file.
-
-FMC-and-SDB.txt
-	- What are FMC and SDB, basic concepts for this framework
-
-API.txt
-	- The functions that are exported by the bus driver
-
-parameters.txt
-	- The module parameters
-
-carrier.txt
-	- writing a carrier (a device)
-
-mezzanine.txt
-	- writing code for your mezzanine (a driver)
-
-identifiers.txt
-	- how identification and matching works
-
-fmc-fakedev.txt
-	- about drivers/fmc/fmc-fakedev.ko
-
-fmc-trivial.txt
-	- about drivers/fmc/fmc-trivial.ko
-
-fmc-write-eeprom.txt
-	- about drivers/fmc/fmc-write-eeprom.ko
-
-fmc-chardev.txt
-	- about drivers/fmc/fmc-chardev.ko
diff --git a/Documentation/gpio/00-INDEX b/Documentation/gpio/00-INDEX
deleted file mode 100644
index 17e19a6..0000000
--- a/Documentation/gpio/00-INDEX
+++ /dev/null
@@ -1,4 +0,0 @@
-00-INDEX
-	- This file
-sysfs.txt
-	- Information about the GPIO sysfs interface
diff --git a/Documentation/ide/00-INDEX b/Documentation/ide/00-INDEX
deleted file mode 100644
index 22f98ca..0000000
--- a/Documentation/ide/00-INDEX
+++ /dev/null
@@ -1,14 +0,0 @@
-00-INDEX
-    	- this file
-ChangeLog.ide-cd.1994-2004
-	- ide-cd changelog
-ChangeLog.ide-floppy.1996-2002
-	- ide-floppy changelog
-ChangeLog.ide-tape.1995-2002
-	- ide-tape changelog
-ide-tape.txt
-	- info on the IDE ATAPI streaming tape driver
-ide.txt
-	- important info for users of ATA devices (IDE/EIDE disks and CD-ROMS).
-warm-plug-howto.txt
-	- using sysfs to remove and add IDE devices.
\ No newline at end of file
diff --git a/Documentation/ioctl/00-INDEX b/Documentation/ioctl/00-INDEX
deleted file mode 100644
index c1a9257..0000000
--- a/Documentation/ioctl/00-INDEX
+++ /dev/null
@@ -1,12 +0,0 @@
-00-INDEX
-	- this file
-botching-up-ioctls.txt
-	- how to avoid botching up ioctls
-cdrom.txt
-	- summary of CDROM ioctl calls
-hdio.txt
-	- summary of HDIO_ ioctl calls
-ioctl-decoding.txt
-	- how to decode the bits of an IOCTL code
-ioctl-number.txt
-	- how to implement and register device/driver ioctl calls
diff --git a/Documentation/isdn/00-INDEX b/Documentation/isdn/00-INDEX
deleted file mode 100644
index 2d1889b..0000000
--- a/Documentation/isdn/00-INDEX
+++ /dev/null
@@ -1,42 +0,0 @@
-00-INDEX
-	- this file (info on ISDN implementation for Linux)
-CREDITS
-	- list of the kind folks that brought you this stuff.
-HiSax.cert
-	- information about the ITU approval certification of the HiSax driver.
-INTERFACE
-	- description of isdn4linux Link Level and Hardware Level interfaces.
-INTERFACE.fax
-	- description of the fax subinterface of isdn4linux.
-INTERFACE.CAPI
-	- description of kernel CAPI Link Level to Hardware Level interface.
-README
-	- general info on what you need and what to do for Linux ISDN.
-README.FAQ
-	- general info for FAQ.
-README.HiSax
-	- info on the HiSax driver which replaces the old teles.
-README.audio
-	- info for running audio over ISDN.
-README.avmb1
-	- info on driver for AVM-B1 ISDN card.
-README.concap
-	- info on "CONCAP" encapsulation protocol interface used for X.25.
-README.diversion
-	- info on module for isdn diversion services.
-README.fax
-	- info for using Fax over ISDN.
-README.gigaset
-	- info on the drivers for Siemens Gigaset ISDN adapters
-README.hfc-pci
-	- info on hfc-pci based cards.
-README.hysdn
-        - info on driver for Hypercope active HYSDN cards
-README.mISDN
-	- info on the Modular ISDN subsystem (mISDN)
-README.syncppp
-	- info on running Sync PPP over ISDN.
-README.x25
-	- info for running X.25 over ISDN.
-syncPPP.FAQ
-	- frequently asked questions about running PPP over ISDN.
diff --git a/Documentation/kbuild/00-INDEX b/Documentation/kbuild/00-INDEX
deleted file mode 100644
index 8c5e6aa..0000000
--- a/Documentation/kbuild/00-INDEX
+++ /dev/null
@@ -1,14 +0,0 @@
-00-INDEX
-	- this file: info on the kernel build process
-headers_install.txt
-	- how to export Linux headers for use by userspace
-kbuild.txt
-	- developer information on kbuild
-kconfig.txt
-	- usage help for make *config
-kconfig-language.txt
-	- specification of Config Language, the language in Kconfig files
-makefiles.txt
-	- developer information for linux kernel makefiles
-modules.txt
-	- how to build modules and to install them
diff --git a/Documentation/laptops/00-INDEX b/Documentation/laptops/00-INDEX
deleted file mode 100644
index 86169dc..0000000
--- a/Documentation/laptops/00-INDEX
+++ /dev/null
@@ -1,16 +0,0 @@
-00-INDEX
-	- This file
-asus-laptop.txt
-	- information on the Asus Laptop Extras driver.
-disk-shock-protection.txt
-	- information on hard disk shock protection.
-laptop-mode.txt
-	- how to conserve battery power using laptop-mode.
-sony-laptop.txt
-	- Sony Notebook Control Driver (SNC) Readme.
-sonypi.txt
-	- info on Linux Sony Programmable I/O Device support.
-thinkpad-acpi.txt
-	- information on the (IBM and Lenovo) ThinkPad ACPI Extras driver.
-toshiba_haps.txt
-	- information on the Toshiba HDD Active Protection Sensor driver.
diff --git a/Documentation/leds/00-INDEX b/Documentation/leds/00-INDEX
deleted file mode 100644
index ae626b2..0000000
--- a/Documentation/leds/00-INDEX
+++ /dev/null
@@ -1,32 +0,0 @@
-00-INDEX
-	- This file
-leds-blinkm.txt
-	- Driver for BlinkM LED-devices.
-leds-class.txt
-	- documents LED handling under Linux.
-leds-class-flash.txt
-	- documents flash LED handling under Linux.
-leds-lm3556.txt
-	- notes on how to use the leds-lm3556 driver.
-leds-lp3944.txt
-	- notes on how to use the leds-lp3944 driver.
-leds-lp5521.txt
-	- notes on how to use the leds-lp5521 driver.
-leds-lp5523.txt
-	- notes on how to use the leds-lp5523 driver.
-leds-lp5562.txt
-	- notes on how to use the leds-lp5562 driver.
-leds-lp55xx.txt
-	- description about lp55xx common driver.
-leds-lm3556.txt
-	- notes on how to use the leds-lm3556 driver.
-leds-mlxcpld.txt
-	- notes on how to use the leds-mlxcpld driver.
-ledtrig-oneshot.txt
-	- One-shot LED trigger for both sporadic and dense events.
-ledtrig-transient.txt
-	- LED Transient Trigger, one shot timer activation.
-ledtrig-usbport.txt
-	- notes on how to use the drivers/usb/core/ledtrig-usbport.c trigger.
-uleds.txt
-	- notes on how to use the uleds driver.
diff --git a/Documentation/locking/00-INDEX b/Documentation/locking/00-INDEX
deleted file mode 100644
index c256c9b..0000000
--- a/Documentation/locking/00-INDEX
+++ /dev/null
@@ -1,16 +0,0 @@
-00-INDEX
-	- this file.
-lockdep-design.txt
-	- documentation on the runtime locking correctness validator.
-lockstat.txt
-	- info on collecting statistics on locks (and contention).
-mutex-design.txt
-	- info on the generic mutex subsystem.
-rt-mutex-design.txt
-	- description of the RealTime mutex implementation design.
-rt-mutex.txt
-	- desc. of RT-mutex subsystem with PI (Priority Inheritance) support.
-spinlocks.txt
-	- info on using spinlocks to provide exclusive access in kernel.
-ww-mutex-design.txt
-	- Intro to Mutex wait/would deadlock handling.s
diff --git a/Documentation/m68k/00-INDEX b/Documentation/m68k/00-INDEX
deleted file mode 100644
index 2be8c6b..0000000
--- a/Documentation/m68k/00-INDEX
+++ /dev/null
@@ -1,7 +0,0 @@
-00-INDEX
-	- this file
-README.buddha
-	- Amiga Buddha and Catweasel IDE Driver
-kernel-options.txt
-	- command line options for Linux/m68k
-
diff --git a/Documentation/mips/00-INDEX b/Documentation/mips/00-INDEX
deleted file mode 100644
index 8ae9cff..0000000
--- a/Documentation/mips/00-INDEX
+++ /dev/null
@@ -1,4 +0,0 @@
-00-INDEX
-	- this file.
-AU1xxx_IDE.README
-	- README for MIPS AU1XXX IDE driver.
diff --git a/Documentation/mmc/00-INDEX b/Documentation/mmc/00-INDEX
deleted file mode 100644
index 4623bc0..0000000
--- a/Documentation/mmc/00-INDEX
+++ /dev/null
@@ -1,10 +0,0 @@
-00-INDEX
-        - this file
-mmc-dev-attrs.txt
-        - info on SD and MMC device attributes
-mmc-dev-parts.txt
-        - info on SD and MMC device partitions
-mmc-async-req.txt
-        - info on mmc asynchronous requests
-mmc-tools.txt
-	- info on mmc-utils tools
diff --git a/Documentation/netlabel/00-INDEX b/Documentation/netlabel/00-INDEX
deleted file mode 100644
index 837bf35..0000000
--- a/Documentation/netlabel/00-INDEX
+++ /dev/null
@@ -1,10 +0,0 @@
-00-INDEX
-	- this file.
-cipso_ipv4.txt
-	- documentation on the IPv4 CIPSO protocol engine.
-draft-ietf-cipso-ipsecurity-01.txt
-	- IETF draft of the CIPSO protocol, dated 16 July 1992.
-introduction.txt
-	- NetLabel introduction, READ THIS FIRST.
-lsm_interface.txt
-	- documentation on the NetLabel kernel security module API.
diff --git a/Documentation/netlabel/cipso_ipv4.txt b/Documentation/netlabel/cipso_ipv4.txt
index 93dacb1..a607548 100644
--- a/Documentation/netlabel/cipso_ipv4.txt
+++ b/Documentation/netlabel/cipso_ipv4.txt
@@ -6,11 +6,12 @@ May 17, 2006
 
  * Overview
 
-The NetLabel CIPSO/IPv4 protocol engine is based on the IETF Commercial IP
-Security Option (CIPSO) draft from July 16, 1992.  A copy of this draft can be
-found in this directory, consult '00-INDEX' for the filename.  While the IETF
-draft never made it to an RFC standard it has become a de-facto standard for
-labeled networking and is used in many trusted operating systems.
+The NetLabel CIPSO/IPv4 protocol engine is based on the IETF Commercial
+IP Security Option (CIPSO) draft from July 16, 1992.  A copy of this
+draft can be found in this directory
+(draft-ietf-cipso-ipsecurity-01.txt).  While the IETF draft never made
+it to an RFC standard it has become a de-facto standard for labeled
+networking and is used in many trusted operating systems.
 
  * Outbound Packet Processing
 
diff --git a/Documentation/netlabel/introduction.txt b/Documentation/netlabel/introduction.txt
index 5ecd8d1..3caf77b 100644
--- a/Documentation/netlabel/introduction.txt
+++ b/Documentation/netlabel/introduction.txt
@@ -22,7 +22,7 @@ refrain from calling the protocol engines directly, instead they should use
 the NetLabel kernel security module API described below.
 
 Detailed information about each NetLabel protocol engine can be found in this
-directory, consult '00-INDEX' for filenames.
+directory.
 
  * Communication Layer
 
diff --git a/Documentation/networking/00-INDEX b/Documentation/networking/00-INDEX
deleted file mode 100644
index 02a323c..0000000
--- a/Documentation/networking/00-INDEX
+++ /dev/null
@@ -1,234 +0,0 @@
-00-INDEX
-	- this file
-3c509.txt
-	- information on the 3Com Etherlink III Series Ethernet cards.
-6pack.txt
-	- info on the 6pack protocol, an alternative to KISS for AX.25
-LICENSE.qla3xxx
-	- GPLv2 for QLogic Linux Networking HBA Driver
-LICENSE.qlge
-	- GPLv2 for QLogic Linux qlge NIC Driver
-LICENSE.qlcnic
-	- GPLv2 for QLogic Linux qlcnic NIC Driver
-PLIP.txt
-	- PLIP: The Parallel Line Internet Protocol device driver
-README.ipw2100
-	- README for the Intel PRO/Wireless 2100 driver.
-README.ipw2200
-	- README for the Intel PRO/Wireless 2915ABG and 2200BG driver.
-README.sb1000
-	- info on General Instrument/NextLevel SURFboard1000 cable modem.
-altera_tse.txt
-	- Altera Triple-Speed Ethernet controller.
-arcnet-hardware.txt
-	- tons of info on ARCnet, hubs, jumper settings for ARCnet cards, etc.
-arcnet.txt
-	- info on the using the ARCnet driver itself.
-atm.txt
-	- info on where to get ATM programs and support for Linux.
-ax25.txt
-	- info on using AX.25 and NET/ROM code for Linux
-baycom.txt
-	- info on the driver for Baycom style amateur radio modems
-bonding.txt
-	- Linux Ethernet Bonding Driver HOWTO: link aggregation in Linux.
-bridge.txt
-	- where to get user space programs for ethernet bridging with Linux.
-cdc_mbim.txt
-	- 3G/LTE USB modem (Mobile Broadband Interface Model)
-checksum-offloads.txt
-	- Explanation of checksum offloads; LCO, RCO
-cops.txt
-	- info on the COPS LocalTalk Linux driver
-cs89x0.txt
-	- the Crystal LAN (CS8900/20-based) Ethernet ISA adapter driver
-cxacru.txt
-	- Conexant AccessRunner USB ADSL Modem
-cxacru-cf.py
-	- Conexant AccessRunner USB ADSL Modem configuration file parser
-cxgb.txt
-	- Release Notes for the Chelsio N210 Linux device driver.
-dccp.txt
-	- the Datagram Congestion Control Protocol (DCCP) (RFC 4340..42).
-dctcp.txt
-	- DataCenter TCP congestion control
-de4x5.txt
-	- the Digital EtherWORKS DE4?? and DE5?? PCI Ethernet driver
-decnet.txt
-	- info on using the DECnet networking layer in Linux.
-dl2k.txt
-	- README for D-Link DL2000-based Gigabit Ethernet Adapters (dl2k.ko).
-dm9000.txt
-	- README for the Simtec DM9000 Network driver.
-dmfe.txt
-	- info on the Davicom DM9102(A)/DM9132/DM9801 fast ethernet driver.
-dns_resolver.txt
-	- The DNS resolver module allows kernel servies to make DNS queries.
-driver.txt
-	- Softnet driver issues.
-ena.txt
-	- info on Amazon's Elastic Network Adapter (ENA)
-e100.txt
-	- info on Intel's EtherExpress PRO/100 line of 10/100 boards
-e1000.txt
-	- info on Intel's E1000 line of gigabit ethernet boards
-e1000e.txt
-	- README for the Intel Gigabit Ethernet Driver (e1000e).
-eql.txt
-	- serial IP load balancing
-fib_trie.txt
-	- Level Compressed Trie (LC-trie) notes: a structure for routing.
-filter.txt
-	- Linux Socket Filtering
-fore200e.txt
-	- FORE Systems PCA-200E/SBA-200E ATM NIC driver info.
-framerelay.txt
-	- info on using Frame Relay/Data Link Connection Identifier (DLCI).
-gen_stats.txt
-	- Generic networking statistics for netlink users.
-generic-hdlc.txt
-	- The generic High Level Data Link Control (HDLC) layer.
-generic_netlink.txt
-	- info on Generic Netlink
-gianfar.txt
-	- Gianfar Ethernet Driver.
-i40e.txt
-	- README for the Intel Ethernet Controller XL710 Driver (i40e).
-i40evf.txt
-	- Short note on the Driver for the Intel(R) XL710 X710 Virtual Function
-ieee802154.txt
-	- Linux IEEE 802.15.4 implementation, API and drivers
-igb.txt
-	- README for the Intel Gigabit Ethernet Driver (igb).
-igbvf.txt
-	- README for the Intel Gigabit Ethernet Driver (igbvf).
-ip-sysctl.txt
-	- /proc/sys/net/ipv4/* variables
-ip_dynaddr.txt
-	- IP dynamic address hack e.g. for auto-dialup links
-ipddp.txt
-	- AppleTalk-IP Decapsulation and AppleTalk-IP Encapsulation
-iphase.txt
-	- Interphase PCI ATM (i)Chip IA Linux driver info.
-ipsec.txt
-	- Note on not compressing IPSec payload and resulting failed policy check.
-ipv6.txt
-	- Options to the ipv6 kernel module.
-ipvs-sysctl.txt
-	- Per-inode explanation of the /proc/sys/net/ipv4/vs interface.
-irda.txt
-	- where to get IrDA (infrared) utilities and info for Linux.
-ixgb.txt
-	- README for the Intel 10 Gigabit Ethernet Driver (ixgb).
-ixgbe.txt
-	- README for the Intel 10 Gigabit Ethernet Driver (ixgbe).
-ixgbevf.txt
-	- README for the Intel Virtual Function (VF) Driver (ixgbevf).
-l2tp.txt
-	- User guide to the L2TP tunnel protocol.
-lapb-module.txt
-	- programming information of the LAPB module.
-ltpc.txt
-	- the Apple or Farallon LocalTalk PC card driver
-mac80211-auth-assoc-deauth.txt
-	- authentication and association / deauth-disassoc with max80211
-mac80211-injection.txt
-	- HOWTO use packet injection with mac80211
-multiqueue.txt
-	- HOWTO for multiqueue network device support.
-netconsole.txt
-	- The network console module netconsole.ko: configuration and notes.
-netdev-features.txt
-	- Network interface features API description.
-netdevices.txt
-	- info on network device driver functions exported to the kernel.
-netif-msg.txt
-	- Design of the network interface message level setting (NETIF_MSG_*).
-netlink_mmap.txt
-	- memory mapped I/O with netlink
-nf_conntrack-sysctl.txt
-	- list of netfilter-sysctl knobs.
-nfc.txt
-	- The Linux Near Field Communication (NFS) subsystem.
-openvswitch.txt
-	- Open vSwitch developer documentation.
-operstates.txt
-	- Overview of network interface operational states.
-packet_mmap.txt
-	- User guide to memory mapped packet socket rings (PACKET_[RT]X_RING).
-phonet.txt
-	- The Phonet packet protocol used in Nokia cellular modems.
-phy.txt
-	- The PHY abstraction layer.
-pktgen.txt
-	- User guide to the kernel packet generator (pktgen.ko).
-policy-routing.txt
-	- IP policy-based routing
-ppp_generic.txt
-	- Information about the generic PPP driver.
-proc_net_tcp.txt
-	- Per inode overview of the /proc/net/tcp and /proc/net/tcp6 interfaces.
-radiotap-headers.txt
-	- Background on radiotap headers.
-ray_cs.txt
-	- Raylink Wireless LAN card driver info.
-rds.txt
-	- Background on the reliable, ordered datagram delivery method RDS.
-regulatory.txt
-	- Overview of the Linux wireless regulatory infrastructure.
-rxrpc.txt
-	- Guide to the RxRPC protocol.
-s2io.txt
-	- Release notes for Neterion Xframe I/II 10GbE driver.
-scaling.txt
-	- Explanation of network scaling techniques: RSS, RPS, RFS, aRFS, XPS.
-sctp.txt
-	- Notes on the Linux kernel implementation of the SCTP protocol.
-secid.txt
-	- Explanation of the secid member in flow structures.
-skfp.txt
-	- SysKonnect FDDI (SK-5xxx, Compaq Netelligent) driver info.
-smc9.txt
-	- the driver for SMC's 9000 series of Ethernet cards
-spider_net.txt
-	- README for the Spidernet Driver (as found in PS3 / Cell BE).
-stmmac.txt
-	- README for the STMicro Synopsys Ethernet driver.
-tc-actions-env-rules.txt
-	- rules for traffic control (tc) actions.
-timestamping.txt
-	- overview of network packet timestamping variants.
-tcp.txt
-	- short blurb on how TCP output takes place.
-tcp-thin.txt
-	- kernel tuning options for low rate 'thin' TCP streams.
-team.txt
-	- pointer to information for ethernet teaming devices.
-tlan.txt
-	- ThunderLAN (Compaq Netelligent 10/100, Olicom OC-2xxx) driver info.
-tproxy.txt
-	- Transparent proxy support user guide.
-tuntap.txt
-	- TUN/TAP device driver, allowing user space Rx/Tx of packets.
-udplite.txt
-	- UDP-Lite protocol (RFC 3828) introduction.
-vortex.txt
-	- info on using 3Com Vortex (3c590, 3c592, 3c595, 3c597) Ethernet cards.
-vxge.txt
-	- README for the Neterion X3100 PCIe Server Adapter.
-vxlan.txt
-	- Virtual extensible LAN overview
-x25.txt
-	- general info on X.25 development.
-x25-iface.txt
-	- description of the X.25 Packet Layer to LAPB device interface.
-xfrm_device.txt
-	- description of XFRM offload API
-xfrm_proc.txt
-	- description of the statistics package for XFRM.
-xfrm_sync.txt
-	- sync patches for XFRM enable migration of an SA between hosts.
-xfrm_sysctl.txt
-	- description of the XFRM configuration options.
-z8530drv.txt
-	- info about Linux driver for Z8530 based HDLC cards for AX.25
diff --git a/Documentation/parisc/00-INDEX b/Documentation/parisc/00-INDEX
deleted file mode 100644
index cbd0609..0000000
--- a/Documentation/parisc/00-INDEX
+++ /dev/null
@@ -1,6 +0,0 @@
-00-INDEX
-	- this file.
-debugging
-	- some debugging hints for real-mode code
-registers
-	- current/planned usage of registers
diff --git a/Documentation/power/00-INDEX b/Documentation/power/00-INDEX
deleted file mode 100644
index 7f3c2de..0000000
--- a/Documentation/power/00-INDEX
+++ /dev/null
@@ -1,44 +0,0 @@
-00-INDEX
-	- This file
-apm-acpi.txt
-	- basic info about the APM and ACPI support.
-basic-pm-debugging.txt
-	- Debugging suspend and resume
-charger-manager.txt
-	- Battery charger management.
-admin-guide/devices.rst
-	- How drivers interact with system-wide power management
-drivers-testing.txt
-	- Testing suspend and resume support in device drivers
-freezing-of-tasks.txt
-	- How processes and controlled during suspend
-interface.txt
-	- Power management user interface in /sys/power
-opp.txt
-	- Operating Performance Point library
-pci.txt
-	- How the PCI Subsystem Does Power Management
-pm_qos_interface.txt
-	- info on Linux PM Quality of Service interface
-power_supply_class.txt
-	- Tells userspace about battery, UPS, AC or DC power supply properties
-runtime_pm.txt
-	- Power management framework for I/O devices.
-s2ram.txt
-	- How to get suspend to ram working (and debug it when it isn't)
-states.txt
-	- System power management states
-suspend-and-cpuhotplug.txt
-	- Explains the interaction between Suspend-to-RAM (S3) and CPU hotplug
-swsusp-and-swap-files.txt
-	- Using swap files with software suspend (to disk)
-swsusp-dmcrypt.txt
-	- How to use dm-crypt and software suspend (to disk) together
-swsusp.txt
-	- Goals, implementation, and usage of software suspend (ACPI S3)
-tricks.txt
-	- How to trick software suspend (to disk) into working when it isn't
-userland-swsusp.txt
-	- Experimental implementation of software suspend in userspace
-video.txt
-	- Video issues during resume from suspend
diff --git a/Documentation/powerpc/00-INDEX b/Documentation/powerpc/00-INDEX
deleted file mode 100644
index 9dc845c..0000000
--- a/Documentation/powerpc/00-INDEX
+++ /dev/null
@@ -1,34 +0,0 @@
-Index of files in Documentation/powerpc.  If you think something about
-Linux/PPC needs an entry here, needs correction or you've written one
-please mail me.
-                                        Cort Dougan (cort@fsmlabs.com)
-
-00-INDEX
-	- this file
-bootwrapper.txt
-	- Information on how the powerpc kernel is wrapped for boot on various
-	  different platforms.
-cpu_features.txt
-	- info on how we support a variety of CPUs with minimal compile-time
-	options.
-cxl.txt
-	- Overview of the CXL driver.
-eeh-pci-error-recovery.txt
-	- info on PCI Bus EEH Error Recovery
-firmware-assisted-dump.txt
-	- Documentation on the firmware assisted dump mechanism "fadump".
-hvcs.txt
-	- IBM "Hypervisor Virtual Console Server" Installation Guide
-mpc52xx.txt
-	- Linux 2.6.x on MPC52xx family
-pmu-ebb.txt
-	- Description of the API for using the PMU with Event Based Branches.
-qe_firmware.txt
-	- describes the layout of firmware binaries for the Freescale QUICC
-	  Engine and the code that parses and uploads the microcode therein.
-ptrace.txt
-	- Information on the ptrace interfaces for hardware debug registers.
-transactional_memory.txt
-	- Overview of the Power8 transactional memory support.
-dscr.txt
-	- Overview DSCR (Data Stream Control Register) support.
diff --git a/Documentation/s390/00-INDEX b/Documentation/s390/00-INDEX
deleted file mode 100644
index 317f037..0000000
--- a/Documentation/s390/00-INDEX
+++ /dev/null
@@ -1,28 +0,0 @@
-00-INDEX
-	- this file.
-3270.ChangeLog
-	- ChangeLog for the UTS Global 3270-support patch (outdated).
-3270.txt
-	- how to use the IBM 3270 display system support.
-cds.txt
-	- s390 common device support (common I/O layer).
-CommonIO
-	- common I/O layer command line parameters, procfs and debugfs	entries
-config3270.sh
-	- example configuration for 3270 devices.
-DASD
-	- information on the DASD disk device driver.
-Debugging390.txt
-	- hints for debugging on s390 systems.
-driver-model.txt
-	- information on s390 devices and the driver model.
-monreader.txt
-	- information on accessing the z/VM monitor stream from Linux.
-qeth.txt
-	- HiperSockets Bridge Port Support.
-s390dbf.txt
-	- information on using the s390 debug feature.
-vfio-ccw.txt
-	  information on the vfio-ccw I/O subchannel driver.
-zfcpdump.txt
-	- information on the s390 SCSI dump tool.
diff --git a/Documentation/scheduler/00-INDEX b/Documentation/scheduler/00-INDEX
deleted file mode 100644
index eccf7ad..0000000
--- a/Documentation/scheduler/00-INDEX
+++ /dev/null
@@ -1,18 +0,0 @@
-00-INDEX
-	- this file.
-sched-arch.txt
-	- CPU Scheduler implementation hints for architecture specific code.
-sched-bwc.txt
-	- CFS bandwidth control overview.
-sched-design-CFS.txt
-	- goals, design and implementation of the Completely Fair Scheduler.
-sched-domains.txt
-	- information on scheduling domains.
-sched-nice-design.txt
-	- How and why the scheduler's nice levels are implemented.
-sched-rt-group.txt
-	- real-time group scheduling.
-sched-deadline.txt
-	- deadline scheduling.
-sched-stats.txt
-	- information on schedstats (Linux Scheduler Statistics).
diff --git a/Documentation/scsi/00-INDEX b/Documentation/scsi/00-INDEX
deleted file mode 100644
index bb4a76f..0000000
--- a/Documentation/scsi/00-INDEX
+++ /dev/null
@@ -1,108 +0,0 @@
-00-INDEX
-	- this file
-53c700.txt
-	- info on driver for 53c700 based adapters
-BusLogic.txt
-	- info on driver for adapters with BusLogic chips
-ChangeLog.1992-1997
-	- Changes to scsi files, if not listed elsewhere
-ChangeLog.arcmsr
-	- Changes to driver for ARECA's SATA RAID controller cards
-ChangeLog.ips
-	- IBM ServeRAID driver Changelog
-ChangeLog.lpfc
-	- Changes to lpfc driver
-ChangeLog.megaraid
-	- Changes to LSI megaraid controller.
-ChangeLog.megaraid_sas
-	- Changes to serial attached scsi version of LSI megaraid controller.
-ChangeLog.ncr53c8xx
-	- Changes to ncr53c8xx driver
-ChangeLog.sym53c8xx
-	- Changes to sym53c8xx driver
-ChangeLog.sym53c8xx_2
-	- Changes to second generation of sym53c8xx driver
-FlashPoint.txt
-	- info on driver for BusLogic FlashPoint adapters
-LICENSE.FlashPoint
-	- Licence of the Flashpoint driver
-LICENSE.qla2xxx
-	- License for QLogic Linux Fibre Channel HBA Driver firmware.
-LICENSE.qla4xxx
-	- License for QLogic Linux iSCSI HBA Driver.
-Mylex.txt
-	- info on driver for Mylex adapters
-NinjaSCSI.txt
-	- info on WorkBiT NinjaSCSI-32/32Bi driver
-aacraid.txt
-	- Driver supporting Adaptec RAID controllers
-advansys.txt
-	- List of Advansys Host Adapters
-aha152x.txt
-	- info on driver for Adaptec AHA152x based adapters
-aic79xx.txt
-	- Adaptec Ultra320 SCSI host adapters
-aic7xxx.txt
-	- info on driver for Adaptec controllers
-arcmsr_spec.txt
-	- ARECA FIRMWARE SPEC (for IOP331 adapter)
-bfa.txt
-	- Brocade FC/FCOE adapter driver.
-bnx2fc.txt
-	- FCoE hardware offload for Broadcom network interfaces.
-cxgb3i.txt
-	- Chelsio iSCSI Linux Driver
-dc395x.txt
-	- README file for the dc395x SCSI driver
-dpti.txt
-	- info on driver for DPT SmartRAID and Adaptec I2O RAID based adapters
-dtc3x80.txt
-	- info on driver for DTC 2x80 based adapters
-g_NCR5380.txt
-	- info on driver for NCR5380 and NCR53c400 based adapters
-hpsa.txt
-	- HP Smart Array Controller SCSI driver.
-hptiop.txt
-	- HIGHPOINT ROCKETRAID 3xxx RAID DRIVER
-libsas.txt
-	- Serial Attached SCSI management layer.
-link_power_management_policy.txt
-	- Link power management options.
-lpfc.txt
-	- LPFC driver release notes
-megaraid.txt
-	- Common Management Module, shared code handling ioctls for LSI drivers
-ncr53c8xx.txt
-	- info on driver for NCR53c8xx based adapters
-osd.txt
-	Object-Based Storage Device, command set introduction.
-osst.txt
-	- info on driver for OnStream SC-x0 SCSI tape
-ppa.txt
-	- info on driver for IOmega zip drive
-qlogicfas.txt
-	- info on driver for QLogic FASxxx based adapters
-scsi-changer.txt
-	- README for the SCSI media changer driver
-scsi-generic.txt
-	- info on the sg driver for generic (non-disk/CD/tape) SCSI devices.
-scsi-parameters.txt
-	- List of SCSI-parameters to pass to the kernel at module load-time.
-scsi.txt
-	- short blurb on using SCSI support as a module.
-scsi_mid_low_api.txt
-	- info on API between SCSI layer and low level drivers
-scsi_eh.txt
-	- info on SCSI midlayer error handling infrastructure
-scsi_fc_transport.txt
-	- SCSI Fiber Channel Tansport
-st.txt
-	- info on scsi tape driver
-sym53c500_cs.txt
-	- info on PCMCIA driver for Symbios Logic 53c500 based adapters
-sym53c8xx_2.txt
-	- info on second generation driver for sym53c8xx based adapters
-tmscsim.txt
-	- info on driver for AM53c974 based adapters
-ufs.txt
-	- info on Universal Flash Storage(UFS) and UFS host controller driver.
diff --git a/Documentation/serial/00-INDEX b/Documentation/serial/00-INDEX
deleted file mode 100644
index 8021a9f..0000000
--- a/Documentation/serial/00-INDEX
+++ /dev/null
@@ -1,16 +0,0 @@
-00-INDEX
-	- this file.
-README.cycladesZ
-	- info on Cyclades-Z firmware loading.
-driver
-	- intro to the low level serial driver.
-moxa-smartio
-	- file with info on installing/using Moxa multiport serial driver.
-n_gsm.txt
-	- GSM 0710 tty multiplexer howto.
-rocket.txt
-	- info on the Comtrol RocketPort multiport serial driver.
-serial-rs485.txt
-	- info about RS485 structures and support in the kernel.
-tty.txt
-	- guide to the locking policies of the tty layer.
diff --git a/Documentation/spi/00-INDEX b/Documentation/spi/00-INDEX
deleted file mode 100644
index 8e4bb17..0000000
--- a/Documentation/spi/00-INDEX
+++ /dev/null
@@ -1,16 +0,0 @@
-00-INDEX
-	- this file.
-butterfly
-	- AVR Butterfly SPI driver overview and pin configuration.
-ep93xx_spi
-	- Basic EP93xx SPI driver configuration.
-pxa2xx
-	- PXA2xx SPI master controller build by spi_message fifo wq
-spidev
-	- Intro to the userspace API for spi devices
-spi-lm70llp
-	- Connecting an LM70-LLP sensor to the kernel via the SPI subsys.
-spi-sc18is602
-	- NXP SC18IS602/603 I2C-bus to SPI bridge
-spi-summary
-	- (Linux) SPI overview. If unsure about SPI or SPI in Linux, start here.
diff --git a/Documentation/sysctl/00-INDEX b/Documentation/sysctl/00-INDEX
deleted file mode 100644
index 8cf5d49..0000000
--- a/Documentation/sysctl/00-INDEX
+++ /dev/null
@@ -1,16 +0,0 @@
-00-INDEX
-	- this file.
-README
-	- general information about /proc/sys/ sysctl files.
-abi.txt
-	- documentation for /proc/sys/abi/*.
-fs.txt
-	- documentation for /proc/sys/fs/*.
-kernel.txt
-	- documentation for /proc/sys/kernel/*.
-net.txt
-	- documentation for /proc/sys/net/*.
-sunrpc.txt
-	- documentation for /proc/sys/sunrpc/*.
-vm.txt
-	- documentation for /proc/sys/vm/*.
diff --git a/Documentation/timers/00-INDEX b/Documentation/timers/00-INDEX
deleted file mode 100644
index 3be05fe..0000000
--- a/Documentation/timers/00-INDEX
+++ /dev/null
@@ -1,16 +0,0 @@
-00-INDEX
-	- this file
-highres.txt
-	- High resolution timers and dynamic ticks design notes
-hpet.txt
-	- High Precision Event Timer Driver for Linux
-hrtimers.txt
-	- subsystem for high-resolution kernel timers
-NO_HZ.txt
-	- Summary of the different methods for the scheduler clock-interrupts management.
-timekeeping.txt
-	- Clock sources, clock events, sched_clock() and delay timer notes
-timers-howto.txt
-	- how to insert delays in the kernel the right (tm) way.
-timer_stats.txt
-	- timer usage statistics
diff --git a/Documentation/virtual/00-INDEX b/Documentation/virtual/00-INDEX
deleted file mode 100644
index af0d239..0000000
--- a/Documentation/virtual/00-INDEX
+++ /dev/null
@@ -1,11 +0,0 @@
-Virtualization support in the Linux kernel.
-
-00-INDEX
-	- this file.
-
-paravirt_ops.txt
-	- Describes the Linux kernel pv_ops to support different hypervisors
-kvm/
-	- Kernel Virtual Machine.  See also http://linux-kvm.org
-uml/
-	- User Mode Linux, builds/runs Linux kernel as a userspace program.
diff --git a/Documentation/virtual/kvm/00-INDEX b/Documentation/virtual/kvm/00-INDEX
deleted file mode 100644
index 3492458..0000000
--- a/Documentation/virtual/kvm/00-INDEX
+++ /dev/null
@@ -1,35 +0,0 @@
-00-INDEX
-	- this file.
-amd-memory-encryption.rst
-	- notes on AMD Secure Encrypted Virtualization feature and SEV firmware
-	  command description
-api.txt
-	- KVM userspace API.
-arm
-	- internal ABI between the kernel and HYP (for arm/arm64)
-cpuid.txt
-	- KVM-specific cpuid leaves (x86).
-devices/
-	- KVM_CAP_DEVICE_CTRL userspace API.
-halt-polling.txt
-	- notes on halt-polling
-hypercalls.txt
-	- KVM hypercalls.
-locking.txt
-	- notes on KVM locks.
-mmu.txt
-	- the x86 kvm shadow mmu.
-msr.txt
-	- KVM-specific MSRs (x86).
-nested-vmx.txt
-	- notes on nested virtualization for Intel x86 processors.
-ppc-pv.txt
-	- the paravirtualization interface on PowerPC.
-review-checklist.txt
-	- review checklist for KVM patches.
-s390-diag.txt
-	- Diagnose hypercall description (for IBM S/390)
-timekeeping.txt
-	- timekeeping virtualization for x86-based architectures.
-vcpu-requests.rst
-	- internal VCPU request API
diff --git a/Documentation/vm/00-INDEX b/Documentation/vm/00-INDEX
deleted file mode 100644
index f4a4f3e..0000000
--- a/Documentation/vm/00-INDEX
+++ /dev/null
@@ -1,50 +0,0 @@
-00-INDEX
-	- this file.
-active_mm.rst
-	- An explanation from Linus about tsk->active_mm vs tsk->mm.
-balance.rst
-	- various information on memory balancing.
-cleancache.rst
-	- Intro to cleancache and page-granularity victim cache.
-frontswap.rst
-	- Outline frontswap, part of the transcendent memory frontend.
-highmem.rst
-	- Outline of highmem and common issues.
-hmm.rst
-	- Documentation of heterogeneous memory management
-hugetlbfs_reserv.rst
-	- A brief overview of hugetlbfs reservation design/implementation.
-hwpoison.rst
-	- explains what hwpoison is
-ksm.rst
-	- how to use the Kernel Samepage Merging feature.
-mmu_notifier.rst
-	- a note about clearing pte/pmd and mmu notifications
-numa.rst
-	- information about NUMA specific code in the Linux vm.
-overcommit-accounting.rst
-	- description of the Linux kernels overcommit handling modes.
-page_frags.rst
-	- description of page fragments allocator
-page_migration.rst
-	- description of page migration in NUMA systems.
-page_owner.rst
-	- tracking about who allocated each page
-remap_file_pages.rst
-	- a note about remap_file_pages() system call
-slub.rst
-	- a short users guide for SLUB.
-split_page_table_lock.rst
-	- Separate per-table lock to improve scalability of the old page_table_lock.
-swap_numa.rst
-	- automatic binding of swap device to numa node
-transhuge.rst
-	- Transparent Hugepage Support, alternative way of using hugepages.
-unevictable-lru.rst
-	- Unevictable LRU infrastructure
-z3fold.txt
-	- outline of z3fold allocator for storing compressed pages
-zsmalloc.rst
-	- outline of zsmalloc allocator for storing compressed pages
-zswap.rst
-	- Intro to compressed cache for swap pages
diff --git a/Documentation/w1/00-INDEX b/Documentation/w1/00-INDEX
deleted file mode 100644
index cb49802..0000000
--- a/Documentation/w1/00-INDEX
+++ /dev/null
@@ -1,10 +0,0 @@
-00-INDEX
-	- This file
-slaves/
-	- Drivers that provide support for specific family codes.
-masters/
-	- Individual chips providing 1-wire busses.
-w1.generic
-	- The 1-wire (w1) bus
-w1.netlink
-	- Userspace communication protocol over connector [1].
diff --git a/Documentation/w1/masters/00-INDEX b/Documentation/w1/masters/00-INDEX
deleted file mode 100644
index 8330cf9..0000000
--- a/Documentation/w1/masters/00-INDEX
+++ /dev/null
@@ -1,12 +0,0 @@
-00-INDEX
-	- This file
-ds2482
-	- The Maxim/Dallas Semiconductor DS2482 provides 1-wire busses.
-ds2490
-	- The Maxim/Dallas Semiconductor DS2490 builds USB <-> W1 bridges.
-mxc-w1
-	- W1 master controller driver found on Freescale MX2/MX3 SoCs
-omap-hdq
-	- HDQ/1-wire module of TI OMAP 2430/3430.
-w1-gpio
-	- GPIO 1-wire bus master driver.
diff --git a/Documentation/w1/slaves/00-INDEX b/Documentation/w1/slaves/00-INDEX
deleted file mode 100644
index 68946f8..0000000
--- a/Documentation/w1/slaves/00-INDEX
+++ /dev/null
@@ -1,14 +0,0 @@
-00-INDEX
-	- This file
-w1_therm
-	- The Maxim/Dallas Semiconductor ds18*20 temperature sensor.
-w1_ds2413
-	- The Maxim/Dallas Semiconductor ds2413 dual channel addressable switch.
-w1_ds2423
-	- The Maxim/Dallas Semiconductor ds2423 counter device.
-w1_ds2438
-	- The Maxim/Dallas Semiconductor ds2438 smart battery monitor.
-w1_ds28e04
-	- The Maxim/Dallas Semiconductor ds28e04 eeprom.
-w1_ds28e17
-	- The Maxim/Dallas Semiconductor ds28e17 1-Wire-to-I2C Master Bridge.
diff --git a/Documentation/x86/00-INDEX b/Documentation/x86/00-INDEX
deleted file mode 100644
index 3bb2ee3..0000000
--- a/Documentation/x86/00-INDEX
+++ /dev/null
@@ -1,20 +0,0 @@
-00-INDEX
-	- this file
-boot.txt
-	- List of boot protocol versions
-earlyprintk.txt
-	- Using earlyprintk with a USB2 debug port key.
-entry_64.txt
-	- Describe (some of the) kernel entry points for x86.
-exception-tables.txt
-	- why and how Linux kernel uses exception tables on x86
-microcode.txt
-	- How to load microcode from an initrd-CPIO archive early to fix CPU issues.
-mtrr.txt
-	- how to use x86 Memory Type Range Registers to increase performance
-pat.txt
-	- Page Attribute Table intro and API
-usb-legacy-support.txt
-	- how to fix/avoid quirks when using emulated PS/2 mouse/keyboard.
-zero-page.txt
-	- layout of the first page of memory.
diff --git a/Documentation/x86/x86_64/00-INDEX b/Documentation/x86/x86_64/00-INDEX
deleted file mode 100644
index 92fc20a..0000000
--- a/Documentation/x86/x86_64/00-INDEX
+++ /dev/null
@@ -1,16 +0,0 @@
-00-INDEX
-	- This file
-boot-options.txt
-	- AMD64-specific boot options.
-cpu-hotplug-spec
-	- Firmware support for CPU hotplug under Linux/x86-64
-fake-numa-for-cpusets
-	- Using numa=fake and CPUSets for Resource Management
-kernel-stacks
-	- Context-specific per-processor interrupt stacks.
-machinecheck
-	- Configurable sysfs parameters for the x86-64 machine check code.
-mm.txt
-	- Memory layout of x86-64 (4 level page tables, 46 bits physical).
-uefi.txt
-	- Booting Linux via Unified Extensible Firmware Interface.
diff --git a/README b/README
index 2c927cc..669ac7c 100644
--- a/README
+++ b/README
@@ -12,7 +12,6 @@ In order to build the documentation, use ``make htmldocs`` or
 
 There are various text files in the Documentation/ subdirectory,
 several of them using the Restructured Text markup notation.
-See Documentation/00-INDEX for a list of what is contained in each file.
 
 Please read the Documentation/process/changes.rst file, as it contains the
 requirements for building and running the kernel, and information about
diff --git a/scripts/check_00index.sh b/scripts/check_00index.sh
deleted file mode 100755
index aa47f592..0000000
--- a/scripts/check_00index.sh
+++ /dev/null
@@ -1,67 +0,0 @@
-#!/bin/bash
-# SPDX-License-Identifier: GPL-2.0
-
-cd Documentation/
-
-# Check entries that should be removed
-
-obsolete=""
-for i in $(tail -n +12 00-INDEX |grep -E '^[a-zA-Z0-9]+'); do
-	if [ ! -e $i ]; then
-		obsolete="$obsolete $i"
-	fi
-done
-
-# Check directory entries that should be added
-search=""
-dir=""
-for i in $(find . -maxdepth 1 -type d); do
-	if [ "$i" != "." ]; then
-		new=$(echo $i|perl -ne 's,./(.*),$1/,; print $_')
-		search="$search $new"
-	fi
-done
-
-for i in $search; do
-	if [ "$(grep -P "^$i" 00-INDEX)" == "" ]; then
-		dir="$dir $i"
-	fi
-done
-
-# Check file entries that should be added
-search=""
-file=""
-for i in $(find . -maxdepth 1 -type f); do
-	if [ "$i" != "./.gitignore" ]; then
-		new=$(echo $i|perl -ne 's,./(.*),$1,; print $_')
-		search="$search $new"
-	fi
-done
-
-for i in $search; do
-	if [ "$(grep -P "^$i\$" 00-INDEX)" == "" ]; then
-		file="$file $i"
-	fi
-done
-
-# Output its findings
-
-echo -e "Documentation/00-INDEX check results:\n"
-
-if [ "$obsolete" != "" ]; then
-	echo -e "- Should remove those entries:\n\t$obsolete\n"
-else
-	echo -e "- No obsolete entries\n"
-fi
-
-if [ "$dir" != "" ]; then
-	echo -e "- Should document those directories:\n\t$dir\n"
-else
-	echo -e "- No new directories to add\n"
-fi
-
-if [ "$file" != "" ]; then
-	echo -e "- Should document those files:\n\t$file"
-else
-	echo "- No new files to add"
-fi
-- 
2.7.4



From - Thu Nov 08 21:41:53 2018
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Newsgroups: gmane.comp.video.dri.devel,gmane.linux.ports.mips.general,gmane.comp.emulators.kvm.devel,gmane.linux.documentation,gmane.linux.kernel.lsm,gmane.linux.kernel.gpio,gmane.linux.kbuild.devel,gmane.linux.ports.parisc,gmane.linux.ide,gmane.linux.kernel.pci,gmane.linux.power-management.general,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.linux.network,gmane.linux.ports.ppc64.devel,gmane.linux.drivers.devicetree
Subject: Re: [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
Date: Tue, 4 Sep 2018 11:41:29 +0100
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Approved: news@gmane.org
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To: Henrik Austad <henrik@austad.us>
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On Tue, Sep 04, 2018 at 12:15:23AM +0200, Henrik Austad wrote:
> This is a respin with a wider audience (all that get_maintainer returned)
> and I know this spams a *lot* of people. Not sure what would be the correct
> way, so my apologies for ruining your inbox.

Acked-by: Mark Brown <broonie@kernel.org>

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From - Thu Nov 08 21:41:53 2018
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Subject: Re: [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
Date: Tue, 4 Sep 2018 13:30:30 +0200
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Hi!

> The 00-INDEX files are supposed to give a summary of all files present
> in a directory, but these files are horribly out of date and their
> usefulness is brought into question. Often a simple "ls" would reveal
> the same information as the filenames are generally quite descriptive as
> a short introduction to what the file covers (it should not surprise


> -SAK.txt
> -	- info on Secure Attention Keys.
> -SM501.txt
> -	- Silicon Motion SM501 multimedia companion chip
> -btmrvl.txt
> -	- info on Marvell Bluetooth driver usage.

Well, I don't know what sm501 is, but description helps me. SAK is
similar. .. as is btmrvl.

I'd say this is still quite valueable, and it might be worth fixing,
rather then removing completely.

And yes, moving stuff to subdirectories and naming files reasonably
would help, too. "btmrvl" is really bad name...

									Pavel
--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.ports.mips.general,gmane.comp.emulators.kvm.devel,gmane.linux.documentation,gmane.comp.video.dri.devel,gmane.linux.kernel.lsm,gmane.linux.kernel.gpio,gmane.linux.kbuild.devel,gmane.linux.ports.parisc,gmane.linux.ide,gmane.linux.kernel.pci,gmane.linux.power-management.general,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.linux.network,gmane.linux.drivers.devicetree
Subject: Re: [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
Date: Tue, 4 Sep 2018 06:02:56 -0700
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On Tue, Sep 04, 2018 at 12:15:23AM +0200, Henrik Austad wrote:
> This is a respin with a wider audience (all that get_maintainer returned)
> and I know this spams a *lot* of people. Not sure what would be the correct
> way, so my apologies for ruining your inbox.
> 
> The 00-INDEX files are supposed to give a summary of all files present
> in a directory, but these files are horribly out of date and their
> usefulness is brought into question. Often a simple "ls" would reveal
> the same information as the filenames are generally quite descriptive as
> a short introduction to what the file covers (it should not surprise
> anyone what Documentation/sched/sched-design-CFS.txt covers)
> 
> A few years back it was mentioned that these files were no longer really
> needed, and they have since then grown further out of date, so perhaps
> it is time to just throw them out.
> 
> A short status yields the following _outdated_ 00-INDEX files, first
> counter is files listed in 00-INDEX but missing in the directory, last
> is files present but not listed in 00-INDEX.
> 
> List of outdated 00-INDEX:
> Documentation: (4/10)
> Documentation/sysctl: (0/1)
> Documentation/timers: (1/0)
> Documentation/blockdev: (3/1)
> Documentation/w1/slaves: (0/1)
> Documentation/locking: (0/1)
> Documentation/devicetree: (0/5)
> Documentation/power: (1/1)
> Documentation/powerpc: (0/5)
> Documentation/arm: (1/0)
> Documentation/x86: (0/9)
> Documentation/x86/x86_64: (1/1)
> Documentation/scsi: (4/4)
> Documentation/filesystems: (2/9)
> Documentation/filesystems/nfs: (0/2)
> Documentation/cgroup-v1: (0/2)
> Documentation/kbuild: (0/4)
> Documentation/spi: (1/0)
> Documentation/virtual/kvm: (1/0)
> Documentation/scheduler: (0/2)
> Documentation/fb: (0/1)
> Documentation/block: (0/1)
> Documentation/networking: (6/37)
> Documentation/vm: (1/3)
> 
> Then there are 364 subdirectories in Documentation/ with several files that
> are missing 00-INDEX alltogether (and another 120 with a single file and no
> 00-INDEX).
> 
> I don't really have an opinion to whether or not we /should/ have 00-INDEX,
> but the above 00-INDEX should either be removed or be kept up to date. If
> we should keep the files, I can try to keep them updated, but I rather not
> if we just want to delete them anyway.
> 
> As a starting point, remove all index-files and references to 00-INDEX and
> see where the discussion is going.

For the RCU portions:

Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

> Again, sorry for the insanely wide distribution.
> 
> Signed-off-by: Henrik Austad <henrik@austad.us>
> Cc: Jonathan Corbet <corbet@lwn.net>
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
> Cc: Josh Triplett <josh@joshtriplett.org>
> Cc: Steven Rostedt <rostedt@goodmis.org>
> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> Cc: Lai Jiangshan <jiangshanlai@gmail.com>
> Cc: Jens Axboe <axboe@kernel.dk>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Karsten Keil <isdn@linux-pingi.de>
> Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
> Cc: Michal Marek <michal.lkml@markovi.net>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Will Deacon <will.deacon@arm.com>
> Cc: Ralf Baechle <ralf@linux-mips.org>
> Cc: Paul Burton <paul.burton@mips.com>
> Cc: James Hogan <jhogan@kernel.org>
> Cc: Paul Moore <paul@paul-moore.com>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Cc: Len Brown <len.brown@intel.com>
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Jiri Slaby <jslaby@suse.com>
> Cc: Mark Brown <broonie@kernel.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Paolo Bonzini <pbonzini@redhat.com>
> Cc: "Radim Krčmář" <rkrcmar@redhat.com>
> Cc: Evgeniy Polyakov <zbr@ioremap.net>
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: x86@kernel.org
> Cc: Henrik Austad <henrik@austad.us>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Ian Kent <raven@themaw.net>
> Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
> Cc: Jan Kandziora <jjj@gmx.de>
> Cc: linux-doc@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> Cc: devicetree@vger.kernel.org
> Cc: dri-devel@lists.freedesktop.org
> Cc: linux-fbdev@vger.kernel.org
> Cc: linux-gpio@vger.kernel.org
> Cc: linux-ide@vger.kernel.org
> Cc: netdev@vger.kernel.org
> Cc: linux-kbuild@vger.kernel.org
> Cc: linux-mips@linux-mips.org
> Cc: linux-security-module@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-pm@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: linux-s390@vger.kernel.org
> Cc: linux-spi@vger.kernel.org
> Cc: kvm@vger.kernel.org
> Signed-off-by: Henrik Austad <haustad@cisco.com>
> ---
>  Documentation/00-INDEX                  | 428 --------------------------------
>  Documentation/PCI/00-INDEX              |  26 --
>  Documentation/RCU/00-INDEX              |  34 ---
>  Documentation/RCU/rcu.txt               |   4 -
>  Documentation/admin-guide/README.rst    |   3 +-
>  Documentation/arm/00-INDEX              |  50 ----
>  Documentation/block/00-INDEX            |  34 ---
>  Documentation/blockdev/00-INDEX         |  18 --
>  Documentation/cdrom/00-INDEX            |  11 -
>  Documentation/cgroup-v1/00-INDEX        |  26 --
>  Documentation/devicetree/00-INDEX       |  12 -
>  Documentation/fb/00-INDEX               |  75 ------
>  Documentation/filesystems/00-INDEX      | 153 ------------
>  Documentation/filesystems/nfs/00-INDEX  |  26 --
>  Documentation/fmc/00-INDEX              |  38 ---
>  Documentation/gpio/00-INDEX             |   4 -
>  Documentation/ide/00-INDEX              |  14 --
>  Documentation/ioctl/00-INDEX            |  12 -
>  Documentation/isdn/00-INDEX             |  42 ----
>  Documentation/kbuild/00-INDEX           |  14 --
>  Documentation/laptops/00-INDEX          |  16 --
>  Documentation/leds/00-INDEX             |  32 ---
>  Documentation/locking/00-INDEX          |  16 --
>  Documentation/m68k/00-INDEX             |   7 -
>  Documentation/mips/00-INDEX             |   4 -
>  Documentation/mmc/00-INDEX              |  10 -
>  Documentation/netlabel/00-INDEX         |  10 -
>  Documentation/netlabel/cipso_ipv4.txt   |  11 +-
>  Documentation/netlabel/introduction.txt |   2 +-
>  Documentation/networking/00-INDEX       | 234 -----------------
>  Documentation/parisc/00-INDEX           |   6 -
>  Documentation/power/00-INDEX            |  44 ----
>  Documentation/powerpc/00-INDEX          |  34 ---
>  Documentation/s390/00-INDEX             |  28 ---
>  Documentation/scheduler/00-INDEX        |  18 --
>  Documentation/scsi/00-INDEX             | 108 --------
>  Documentation/serial/00-INDEX           |  16 --
>  Documentation/spi/00-INDEX              |  16 --
>  Documentation/sysctl/00-INDEX           |  16 --
>  Documentation/timers/00-INDEX           |  16 --
>  Documentation/virtual/00-INDEX          |  11 -
>  Documentation/virtual/kvm/00-INDEX      |  35 ---
>  Documentation/vm/00-INDEX               |  50 ----
>  Documentation/w1/00-INDEX               |  10 -
>  Documentation/w1/masters/00-INDEX       |  12 -
>  Documentation/w1/slaves/00-INDEX        |  14 --
>  Documentation/x86/00-INDEX              |  20 --
>  Documentation/x86/x86_64/00-INDEX       |  16 --
>  README                                  |   1 -
>  scripts/check_00index.sh                |  67 -----
>  50 files changed, 8 insertions(+), 1896 deletions(-)
>  delete mode 100644 Documentation/00-INDEX
>  delete mode 100644 Documentation/PCI/00-INDEX
>  delete mode 100644 Documentation/RCU/00-INDEX
>  delete mode 100644 Documentation/arm/00-INDEX
>  delete mode 100644 Documentation/block/00-INDEX
>  delete mode 100644 Documentation/blockdev/00-INDEX
>  delete mode 100644 Documentation/cdrom/00-INDEX
>  delete mode 100644 Documentation/cgroup-v1/00-INDEX
>  delete mode 100644 Documentation/devicetree/00-INDEX
>  delete mode 100644 Documentation/fb/00-INDEX
>  delete mode 100644 Documentation/filesystems/00-INDEX
>  delete mode 100644 Documentation/filesystems/nfs/00-INDEX
>  delete mode 100644 Documentation/fmc/00-INDEX
>  delete mode 100644 Documentation/gpio/00-INDEX
>  delete mode 100644 Documentation/ide/00-INDEX
>  delete mode 100644 Documentation/ioctl/00-INDEX
>  delete mode 100644 Documentation/isdn/00-INDEX
>  delete mode 100644 Documentation/kbuild/00-INDEX
>  delete mode 100644 Documentation/laptops/00-INDEX
>  delete mode 100644 Documentation/leds/00-INDEX
>  delete mode 100644 Documentation/locking/00-INDEX
>  delete mode 100644 Documentation/m68k/00-INDEX
>  delete mode 100644 Documentation/mips/00-INDEX
>  delete mode 100644 Documentation/mmc/00-INDEX
>  delete mode 100644 Documentation/netlabel/00-INDEX
>  delete mode 100644 Documentation/networking/00-INDEX
>  delete mode 100644 Documentation/parisc/00-INDEX
>  delete mode 100644 Documentation/power/00-INDEX
>  delete mode 100644 Documentation/powerpc/00-INDEX
>  delete mode 100644 Documentation/s390/00-INDEX
>  delete mode 100644 Documentation/scheduler/00-INDEX
>  delete mode 100644 Documentation/scsi/00-INDEX
>  delete mode 100644 Documentation/serial/00-INDEX
>  delete mode 100644 Documentation/spi/00-INDEX
>  delete mode 100644 Documentation/sysctl/00-INDEX
>  delete mode 100644 Documentation/timers/00-INDEX
>  delete mode 100644 Documentation/virtual/00-INDEX
>  delete mode 100644 Documentation/virtual/kvm/00-INDEX
>  delete mode 100644 Documentation/vm/00-INDEX
>  delete mode 100644 Documentation/w1/00-INDEX
>  delete mode 100644 Documentation/w1/masters/00-INDEX
>  delete mode 100644 Documentation/w1/slaves/00-INDEX
>  delete mode 100644 Documentation/x86/00-INDEX
>  delete mode 100644 Documentation/x86/x86_64/00-INDEX
>  delete mode 100755 scripts/check_00index.sh
> 
> diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX
> deleted file mode 100644
> index 2754fe8..0000000
> --- a/Documentation/00-INDEX
> +++ /dev/null
> @@ -1,428 +0,0 @@
> -
> -This is a brief list of all the files in ./linux/Documentation and what
> -they contain. If you add a documentation file, please list it here in
> -alphabetical order as well, or risk being hunted down like a rabid dog.
> -Please keep the descriptions small enough to fit on one line.
> -							 Thanks -- Paul G.
> -
> -Following translations are available on the WWW:
> -
> -   - Japanese, maintained by the JF Project (jf@listserv.linux.or.jp), at
> -     http://linuxjf.sourceforge.jp/
> -
> -00-INDEX
> -	- this file.
> -ABI/
> -	- info on kernel <-> userspace ABI and relative interface stability.
> -CodingStyle
> -	- nothing here, just a pointer to process/coding-style.rst.
> -DMA-API.txt
> -	- DMA API, pci_ API & extensions for non-consistent memory machines.
> -DMA-API-HOWTO.txt
> -	- Dynamic DMA mapping Guide
> -DMA-ISA-LPC.txt
> -	- How to do DMA with ISA (and LPC) devices.
> -DMA-attributes.txt
> -	- listing of the various possible attributes a DMA region can have
> -EDID/
> -	- directory with info on customizing EDID for broken gfx/displays.
> -IPMI.txt
> -	- info on Linux Intelligent Platform Management Interface (IPMI) Driver.
> -IRQ-affinity.txt
> -	- how to select which CPU(s) handle which interrupt events on SMP.
> -IRQ-domain.txt
> -	- info on interrupt numbering and setting up IRQ domains.
> -IRQ.txt
> -	- description of what an IRQ is.
> -Intel-IOMMU.txt
> -	- basic info on the Intel IOMMU virtualization support.
> -Makefile
> -	- It's not of interest for those who aren't touching the build system.
> -PCI/
> -	- info related to PCI drivers.
> -RCU/
> -	- directory with info on RCU (read-copy update).
> -SAK.txt
> -	- info on Secure Attention Keys.
> -SM501.txt
> -	- Silicon Motion SM501 multimedia companion chip
> -SubmittingPatches
> -	- nothing here, just a pointer to process/coding-style.rst.
> -accounting/
> -	- documentation on accounting and taskstats.
> -acpi/
> -	- info on ACPI-specific hooks in the kernel.
> -admin-guide/
> -	- info related to Linux users and system admins.
> -aoe/
> -	- description of AoE (ATA over Ethernet) along with config examples.
> -arm/
> -	- directory with info about Linux on the ARM architecture.
> -arm64/
> -	- directory with info about Linux on the 64 bit ARM architecture.
> -auxdisplay/
> -	- misc. LCD driver documentation (cfag12864b, ks0108).
> -backlight/
> -	- directory with info on controlling backlights in flat panel displays
> -block/
> -	- info on the Block I/O (BIO) layer.
> -blockdev/
> -	- info on block devices & drivers
> -bt8xxgpio.txt
> -	- info on how to modify a bt8xx video card for GPIO usage.
> -btmrvl.txt
> -	- info on Marvell Bluetooth driver usage.
> -bus-devices/
> -	- directory with info on TI GPMC (General Purpose Memory Controller)
> -bus-virt-phys-mapping.txt
> -	- how to access I/O mapped memory from within device drivers.
> -cdrom/
> -	- directory with information on the CD-ROM drivers that Linux has.
> -cgroup-v1/
> -	- cgroups v1 features, including cpusets and memory controller.
> -cma/
> -	- Continuous Memory Area (CMA) debugfs interface.
> -conf.py
> -	- It's not of interest for those who aren't touching the build system.
> -connector/
> -	- docs on the netlink based userspace<->kernel space communication mod.
> -console/
> -	- documentation on Linux console drivers.
> -core-api/
> -	- documentation on kernel core components.
> -cpu-freq/
> -	- info on CPU frequency and voltage scaling.
> -cpu-hotplug.txt
> -	- document describing CPU hotplug support in the Linux kernel.
> -cpu-load.txt
> -	- document describing how CPU load statistics are collected.
> -cpuidle/
> -	- info on CPU_IDLE, CPU idle state management subsystem.
> -cputopology.txt
> -	- documentation on how CPU topology info is exported via sysfs.
> -crc32.txt
> -	- brief tutorial on CRC computation
> -crypto/
> -	- directory with info on the Crypto API.
> -dcdbas.txt
> -	- information on the Dell Systems Management Base Driver.
> -debugging-modules.txt
> -	- some notes on debugging modules after Linux 2.6.3.
> -debugging-via-ohci1394.txt
> -	- how to use firewire like a hardware debugger memory reader.
> -dell_rbu.txt
> -	- document demonstrating the use of the Dell Remote BIOS Update driver.
> -dev-tools/
> -	- directory with info on development tools for the kernel.
> -device-mapper/
> -	- directory with info on Device Mapper.
> -dmaengine/
> -	- the DMA engine and controller API guides.
> -devicetree/
> -	- directory with info on device tree files used by OF/PowerPC/ARM
> -digsig.txt
> -	-info on the Digital Signature Verification API
> -dma-buf-sharing.txt
> -	- the DMA Buffer Sharing API Guide
> -docutils.conf
> -	- nothing here. Just a configuration file for docutils.
> -dontdiff
> -	- file containing a list of files that should never be diff'ed.
> -driver-api/
> -	- the Linux driver implementer's API guide.
> -driver-model/
> -	- directory with info about Linux driver model.
> -early-userspace/
> -	- info about initramfs, klibc, and userspace early during boot.
> -efi-stub.txt
> -	- How to use the EFI boot stub to bypass GRUB or elilo on EFI systems.
> -eisa.txt
> -	- info on EISA bus support.
> -extcon/
> -	- directory with porting guide for Android kernel switch driver.
> -isa.txt
> -	- info on EISA bus support.
> -fault-injection/
> -	- dir with docs about the fault injection capabilities infrastructure.
> -fb/
> -	- directory with info on the frame buffer graphics abstraction layer.
> -features/
> -	- status of feature implementation on different architectures.
> -filesystems/
> -	- info on the vfs and the various filesystems that Linux supports.
> -firmware_class/
> -	- request_firmware() hotplug interface info.
> -flexible-arrays.txt
> -	- how to make use of flexible sized arrays in linux
> -fmc/
> -	- information about the FMC bus abstraction
> -fpga/
> -	- FPGA Manager Core.
> -futex-requeue-pi.txt
> -	- info on requeueing of tasks from a non-PI futex to a PI futex
> -gcc-plugins.txt
> -	- GCC plugin infrastructure.
> -gpio/
> -	- gpio related documentation
> -gpu/
> -	- directory with information on GPU driver developer's guide.
> -hid/
> -	- directory with information on human interface devices
> -highuid.txt
> -	- notes on the change from 16 bit to 32 bit user/group IDs.
> -hwspinlock.txt
> -	- hardware spinlock provides hardware assistance for synchronization
> -timers/
> -	- info on the timer related topics
> -hw_random.txt
> -	- info on Linux support for random number generator in i8xx chipsets.
> -hwmon/
> -	- directory with docs on various hardware monitoring drivers.
> -i2c/
> -	- directory with info about the I2C bus/protocol (2 wire, kHz speed).
> -x86/i386/
> -	- directory with info about Linux on Intel 32 bit architecture.
> -ia64/
> -	- directory with info about Linux on Intel 64 bit architecture.
> -ide/
> -	- Information regarding the Enhanced IDE drive.
> -iio/
> -	- info on industrial IIO configfs support.
> -index.rst
> -	- main index for the documentation at ReST format.
> -infiniband/
> -	- directory with documents concerning Linux InfiniBand support.
> -input/
> -	- info on Linux input device support.
> -intel_txt.txt
> -	- info on intel Trusted Execution Technology (intel TXT).
> -io-mapping.txt
> -	- description of io_mapping functions in linux/io-mapping.h
> -io_ordering.txt
> -	- info on ordering I/O writes to memory-mapped addresses.
> -ioctl/
> -	- directory with documents describing various IOCTL calls.
> -iostats.txt
> -	- info on I/O statistics Linux kernel provides.
> -irqflags-tracing.txt
> -	- how to use the irq-flags tracing feature.
> -isapnp.txt
> -	- info on Linux ISA Plug & Play support.
> -isdn/
> -	- directory with info on the Linux ISDN support, and supported cards.
> -kbuild/
> -	- directory with info about the kernel build process.
> -kdump/
> -	- directory with mini HowTo on getting the crash dump code to work.
> -doc-guide/
> -	- how to write and format reStructuredText kernel documentation
> -kernel-per-CPU-kthreads.txt
> -	- List of all per-CPU kthreads and how they introduce jitter.
> -kobject.txt
> -	- info of the kobject infrastructure of the Linux kernel.
> -kprobes.txt
> -	- documents the kernel probes debugging feature.
> -kref.txt
> -	- docs on adding reference counters (krefs) to kernel objects.
> -laptops/
> -	- directory with laptop related info and laptop driver documentation.
> -ldm.txt
> -	- a brief description of LDM (Windows Dynamic Disks).
> -leds/
> -	- directory with info about LED handling under Linux.
> -livepatch/
> -	- info on kernel live patching.
> -locking/
> -	- directory with info about kernel locking primitives
> -lockup-watchdogs.txt
> -	- info on soft and hard lockup detectors (aka nmi_watchdog).
> -logo.gif
> -	- full colour GIF image of Linux logo (penguin - Tux).
> -logo.txt
> -	- info on creator of above logo & site to get additional images from.
> -lsm.txt
> -	- Linux Security Modules: General Security Hooks for Linux
> -lzo.txt
> -	- kernel LZO decompressor input formats
> -m68k/
> -	- directory with info about Linux on Motorola 68k architecture.
> -mailbox.txt
> -	- How to write drivers for the common mailbox framework (IPC).
> -md/
> -	- directory with info about Linux Software RAID
> -media/
> -	- info on media drivers: uAPI, kAPI and driver documentation.
> -memory-barriers.txt
> -	- info on Linux kernel memory barriers.
> -memory-devices/
> -	- directory with info on parts like the Texas Instruments EMIF driver
> -memory-hotplug.txt
> -	- Hotpluggable memory support, how to use and current status.
> -men-chameleon-bus.txt
> -	- info on MEN chameleon bus.
> -mic/
> -	- Intel Many Integrated Core (MIC) architecture device driver.
> -mips/
> -	- directory with info about Linux on MIPS architecture.
> -misc-devices/
> -	- directory with info about devices using the misc dev subsystem
> -mmc/
> -	- directory with info about the MMC subsystem
> -mtd/
> -	- directory with info about memory technology devices (flash)
> -namespaces/
> -	- directory with various information about namespaces
> -netlabel/
> -	- directory with information on the NetLabel subsystem.
> -networking/
> -	- directory with info on various aspects of networking with Linux.
> -nfc/
> -	- directory relating info about Near Field Communications support.
> -nios2/
> -	- Linux on the Nios II architecture.
> -nommu-mmap.txt
> -	- documentation about no-mmu memory mapping support.
> -numastat.txt
> -	- info on how to read Numa policy hit/miss statistics in sysfs.
> -ntb.txt
> -	- info on Non-Transparent Bridge (NTB) drivers.
> -nvdimm/
> -	- info on non-volatile devices.
> -nvmem/
> -	- info on non volatile memory framework.
> -output/
> -	- default directory where html/LaTeX/pdf files will be written.
> -padata.txt
> -	- An introduction to the "padata" parallel execution API
> -parisc/
> -	- directory with info on using Linux on PA-RISC architecture.
> -parport-lowlevel.txt
> -	- description and usage of the low level parallel port functions.
> -pcmcia/
> -	- info on the Linux PCMCIA driver.
> -percpu-rw-semaphore.txt
> -	- RCU based read-write semaphore optimized for locking for reading
> -perf/
> -	- info about the APM X-Gene SoC Performance Monitoring Unit (PMU).
> -phy/
> -	- ino on Samsung USB 2.0 PHY adaptation layer.
> -phy.txt
> -	- Description of the generic PHY framework.
> -pi-futex.txt
> -	- documentation on lightweight priority inheritance futexes.
> -pinctrl.txt
> -	- info on pinctrl subsystem and the PINMUX/PINCONF and drivers
> -platform/
> -	- List of supported hardware by compal and Dell laptop.
> -pnp.txt
> -	- Linux Plug and Play documentation.
> -power/
> -	- directory with info on Linux PCI power management.
> -powerpc/
> -	- directory with info on using Linux with the PowerPC.
> -prctl/
> -	- directory with info on the priveledge control subsystem
> -preempt-locking.txt
> -	- info on locking under a preemptive kernel.
> -process/
> -	- how to work with the mainline kernel development process.
> -pps/
> -	- directory with information on the pulse-per-second support
> -pti/
> -	- directory with info on Intel MID PTI.
> -ptp/
> -	- directory with info on support for IEEE 1588 PTP clocks in Linux.
> -pwm.txt
> -	- info on the pulse width modulation driver subsystem
> -rapidio/
> -	- directory with info on RapidIO packet-based fabric interconnect
> -rbtree.txt
> -	- info on what red-black trees are and what they are for.
> -remoteproc.txt
> -	- info on how to handle remote processor (e.g. AMP) offloads/usage.
> -rfkill.txt
> -	- info on the radio frequency kill switch subsystem/support.
> -robust-futex-ABI.txt
> -	- documentation of the robust futex ABI.
> -robust-futexes.txt
> -	- a description of what robust futexes are.
> -rpmsg.txt
> -	- info on the Remote Processor Messaging (rpmsg) Framework
> -rtc.txt
> -	- notes on how to use the Real Time Clock (aka CMOS clock) driver.
> -s390/
> -	- directory with info on using Linux on the IBM S390.
> -scheduler/
> -	- directory with info on the scheduler.
> -scsi/
> -	- directory with info on Linux scsi support.
> -security/
> -	- directory that contains security-related info
> -serial/
> -	- directory with info on the low level serial API.
> -sgi-ioc4.txt
> -	- description of the SGI IOC4 PCI (multi function) device.
> -sh/
> -	- directory with info on porting Linux to a new architecture.
> -smsc_ece1099.txt
> -	-info on the smsc Keyboard Scan Expansion/GPIO Expansion device.
> -sound/
> -	- directory with info on sound card support.
> -spi/
> -	- overview of Linux kernel Serial Peripheral Interface (SPI) support.
> -sphinx/
> -	- no documentation here, just files required by Sphinx toolchain.
> -sphinx-static/
> -	- no documentation here, just files required by Sphinx toolchain.
> -static-keys.txt
> -	- info on how static keys allow debug code in hotpaths via patching
> -svga.txt
> -	- short guide on selecting video modes at boot via VGA BIOS.
> -sync_file.txt
> -	- Sync file API guide.
> -sysctl/
> -	- directory with info on the /proc/sys/* files.
> -target/
> -	- directory with info on generating TCM v4 fabric .ko modules
> -tee.txt
> -	- info on the TEE subsystem and drivers
> -this_cpu_ops.txt
> -	- List rationale behind and the way to use this_cpu operations.
> -thermal/
> -	- directory with information on managing thermal issues (CPU/temp)
> -trace/
> -	- directory with info on tracing technologies within linux
> -translations/
> -	- translations of this document from English to another language
> -unaligned-memory-access.txt
> -	- info on how to avoid arch breaking unaligned memory access in code.
> -unshare.txt
> -	- description of the Linux unshare system call.
> -usb/
> -	- directory with info regarding the Universal Serial Bus.
> -vfio.txt
> -	- info on Virtual Function I/O used in guest/hypervisor instances.
> -video-output.txt
> -	- sysfs class driver interface to enable/disable a video output device.
> -virtual/
> -	- directory with information on the various linux virtualizations.
> -vm/
> -	- directory with info on the Linux vm code.
> -w1/
> -	- directory with documents regarding the 1-wire (w1) subsystem.
> -watchdog/
> -	- how to auto-reboot Linux if it has "fallen and can't get up". ;-)
> -wimax/
> -	- directory with info about Intel Wireless Wimax Connections
> -core-api/workqueue.rst
> -	- information on the Concurrency Managed Workqueue implementation
> -x86/x86_64/
> -	- directory with info on Linux support for AMD x86-64 (Hammer) machines.
> -xillybus.txt
> -	- Overview and basic ui of xillybus driver
> -xtensa/
> -	- directory with documents relating to arch/xtensa port/implementation
> -xz.txt
> -	- how to make use of the XZ data compression within linux kernel
> -zorro.txt
> -	- info on writing drivers for Zorro bus devices found on Amigas.
> diff --git a/Documentation/PCI/00-INDEX b/Documentation/PCI/00-INDEX
> deleted file mode 100644
> index 206b1d5..0000000
> --- a/Documentation/PCI/00-INDEX
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -00-INDEX
> -	- this file
> -acpi-info.txt
> -	- info on how PCI host bridges are represented in ACPI
> -MSI-HOWTO.txt
> -	- the Message Signaled Interrupts (MSI) Driver Guide HOWTO and FAQ.
> -PCIEBUS-HOWTO.txt
> -	- a guide describing the PCI Express Port Bus driver
> -pci-error-recovery.txt
> -	- info on PCI error recovery
> -pci-iov-howto.txt
> -	- the PCI Express I/O Virtualization HOWTO
> -pci.txt
> -	- info on the PCI subsystem for device driver authors
> -pcieaer-howto.txt
> -	- the PCI Express Advanced Error Reporting Driver Guide HOWTO
> -endpoint/pci-endpoint.txt
> -	- guide to add endpoint controller driver and endpoint function driver.
> -endpoint/pci-endpoint-cfs.txt
> -	- guide to use configfs to configure the PCI endpoint function.
> -endpoint/pci-test-function.txt
> -	- specification of *PCI test* function device.
> -endpoint/pci-test-howto.txt
> -	- userguide for PCI endpoint test function.
> -endpoint/function/binding/
> -	- binding documentation for PCI endpoint function
> diff --git a/Documentation/RCU/00-INDEX b/Documentation/RCU/00-INDEX
> deleted file mode 100644
> index f46980c..0000000
> --- a/Documentation/RCU/00-INDEX
> +++ /dev/null
> @@ -1,34 +0,0 @@
> -00-INDEX
> -	- This file
> -arrayRCU.txt
> -	- Using RCU to Protect Read-Mostly Arrays
> -checklist.txt
> -	- Review Checklist for RCU Patches
> -listRCU.txt
> -	- Using RCU to Protect Read-Mostly Linked Lists
> -lockdep.txt
> -	- RCU and lockdep checking
> -lockdep-splat.txt
> -	- RCU Lockdep splats explained.
> -NMI-RCU.txt
> -	- Using RCU to Protect Dynamic NMI Handlers
> -rcu_dereference.txt
> -	- Proper care and feeding of return values from rcu_dereference()
> -rcubarrier.txt
> -	- RCU and Unloadable Modules
> -rculist_nulls.txt
> -	- RCU list primitives for use with SLAB_TYPESAFE_BY_RCU
> -rcuref.txt
> -	- Reference-count design for elements of lists/arrays protected by RCU
> -rcu.txt
> -	- RCU Concepts
> -RTFP.txt
> -	- List of RCU papers (bibliography) going back to 1980.
> -stallwarn.txt
> -	- RCU CPU stall warnings (module parameter rcu_cpu_stall_suppress)
> -torture.txt
> -	- RCU Torture Test Operation (CONFIG_RCU_TORTURE_TEST)
> -UP.txt
> -	- RCU on Uniprocessor Systems
> -whatisRCU.txt
> -	- What is RCU?
> diff --git a/Documentation/RCU/rcu.txt b/Documentation/RCU/rcu.txt
> index 7d4ae11..721b3e4 100644
> --- a/Documentation/RCU/rcu.txt
> +++ b/Documentation/RCU/rcu.txt
> @@ -87,7 +87,3 @@ o	Where can I find more information on RCU?
> 
>  	See the RTFP.txt file in this directory.
>  	Or point your browser at http://www.rdrop.com/users/paulmck/RCU/.
> -
> -o	What are all these files in this directory?
> -
> -	See 00-INDEX for the list.
> diff --git a/Documentation/admin-guide/README.rst b/Documentation/admin-guide/README.rst
> index 15ea785..0797eec 100644
> --- a/Documentation/admin-guide/README.rst
> +++ b/Documentation/admin-guide/README.rst
> @@ -51,8 +51,7 @@ Documentation
> 
>   - There are various README files in the Documentation/ subdirectory:
>     these typically contain kernel-specific installation notes for some
> -   drivers for example. See Documentation/00-INDEX for a list of what
> -   is contained in each file.  Please read the
> +   drivers for example. Please read the
>     :ref:`Documentation/process/changes.rst <changes>` file, as it
>     contains information about the problems, which may result by upgrading
>     your kernel.
> diff --git a/Documentation/arm/00-INDEX b/Documentation/arm/00-INDEX
> deleted file mode 100644
> index b6e69fd..0000000
> --- a/Documentation/arm/00-INDEX
> +++ /dev/null
> @@ -1,50 +0,0 @@
> -00-INDEX
> -	- this file
> -Booting
> -	- requirements for booting
> -CCN.txt
> -	- Cache Coherent Network ring-bus and perf PMU driver.
> -Interrupts
> -	- ARM Interrupt subsystem documentation
> -IXP4xx
> -	- Intel IXP4xx Network processor.
> -Netwinder
> -	- Netwinder specific documentation
> -Porting
> -       - Symbol definitions for porting Linux to a new ARM machine.
> -Setup
> -       - Kernel initialization parameters on ARM Linux
> -README
> -	- General ARM documentation
> -SA1100/
> -	- SA1100 documentation
> -Samsung-S3C24XX/
> -	- S3C24XX ARM Linux Overview
> -SPEAr/
> -	- ST SPEAr platform Linux Overview
> -VFP/
> -	- Release notes for Linux Kernel Vector Floating Point support code
> -cluster-pm-race-avoidance.txt
> -	- Algorithm for CPU and Cluster setup/teardown
> -empeg/
> -	- Ltd's Empeg MP3 Car Audio Player
> -firmware.txt
> -	- Secure firmware registration and calling.
> -kernel_mode_neon.txt
> -	- How to use NEON instructions in kernel mode
> -kernel_user_helpers.txt
> -	- Helper functions in kernel space made available for userspace.
> -mem_alignment
> -	- alignment abort handler documentation
> -memory.txt
> -	- description of the virtual memory layout
> -nwfpe/
> -	- NWFPE floating point emulator documentation
> -swp_emulation
> -	- SWP/SWPB emulation handler/logging description
> -tcm.txt
> -	- ARM Tightly Coupled Memory
> -uefi.txt
> -	- [U]EFI configuration and runtime services documentation
> -vlocks.txt
> -	- Voting locks, low-level mechanism relying on memory system atomic writes.
> diff --git a/Documentation/block/00-INDEX b/Documentation/block/00-INDEX
> deleted file mode 100644
> index 8d55b4b..0000000
> --- a/Documentation/block/00-INDEX
> +++ /dev/null
> @@ -1,34 +0,0 @@
> -00-INDEX
> -	- This file
> -bfq-iosched.txt
> -	- BFQ IO scheduler and its tunables
> -biodoc.txt
> -	- Notes on the Generic Block Layer Rewrite in Linux 2.5
> -biovecs.txt
> -	- Immutable biovecs and biovec iterators
> -capability.txt
> -	- Generic Block Device Capability (/sys/block/<device>/capability)
> -cfq-iosched.txt
> -	- CFQ IO scheduler tunables
> -cmdline-partition.txt
> -	- how to specify block device partitions on kernel command line
> -data-integrity.txt
> -	- Block data integrity
> -deadline-iosched.txt
> -	- Deadline IO scheduler tunables
> -ioprio.txt
> -	- Block io priorities (in CFQ scheduler)
> -pr.txt
> -	- Block layer support for Persistent Reservations
> -null_blk.txt
> -	- Null block for block-layer benchmarking.
> -queue-sysfs.txt
> -	- Queue's sysfs entries
> -request.txt
> -	- The members of struct request (in include/linux/blkdev.h)
> -stat.txt
> -	- Block layer statistics in /sys/block/<device>/stat
> -switching-sched.txt
> -	- Switching I/O schedulers at runtime
> -writeback_cache_control.txt
> -	- Control of volatile write back caches
> diff --git a/Documentation/blockdev/00-INDEX b/Documentation/blockdev/00-INDEX
> deleted file mode 100644
> index c08df56..0000000
> --- a/Documentation/blockdev/00-INDEX
> +++ /dev/null
> @@ -1,18 +0,0 @@
> -00-INDEX
> -	- this file
> -README.DAC960
> -	- info on Mylex DAC960/DAC1100 PCI RAID Controller Driver for Linux.
> -cciss.txt
> -	- info, major/minor #'s for Compaq's SMART Array Controllers.
> -cpqarray.txt
> -	- info on using Compaq's SMART2 Intelligent Disk Array Controllers.
> -floppy.txt
> -	- notes and driver options for the floppy disk driver.
> -mflash.txt
> -	- info on mGine m(g)flash driver for linux.
> -nbd.txt
> -	- info on a TCP implementation of a network block device.
> -paride.txt
> -	- information about the parallel port IDE subsystem.
> -ramdisk.txt
> -	- short guide on how to set up and use the RAM disk.
> diff --git a/Documentation/cdrom/00-INDEX b/Documentation/cdrom/00-INDEX
> deleted file mode 100644
> index 433edf2..0000000
> --- a/Documentation/cdrom/00-INDEX
> +++ /dev/null
> @@ -1,11 +0,0 @@
> -00-INDEX
> -	- this file (info on CD-ROMs and Linux)
> -Makefile
> -	- only used to generate TeX output from the documentation.
> -cdrom-standard.tex
> -	- LaTeX document on standardizing the CD-ROM programming interface.
> -ide-cd
> -	- info on setting up and using ATAPI (aka IDE) CD-ROMs.
> -packet-writing.txt
> -	- Info on the CDRW packet writing module
> -
> diff --git a/Documentation/cgroup-v1/00-INDEX b/Documentation/cgroup-v1/00-INDEX
> deleted file mode 100644
> index 13e0c85..0000000
> --- a/Documentation/cgroup-v1/00-INDEX
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -00-INDEX
> -	- this file
> -blkio-controller.txt
> -	- Description for Block IO Controller, implementation and usage details.
> -cgroups.txt
> -	- Control Groups definition, implementation details, examples and API.
> -cpuacct.txt
> -	- CPU Accounting Controller; account CPU usage for groups of tasks.
> -cpusets.txt
> -	- documents the cpusets feature; assign CPUs and Mem to a set of tasks.
> -admin-guide/devices.rst
> -	- Device Whitelist Controller; description, interface and security.
> -freezer-subsystem.txt
> -	- checkpointing; rationale to not use signals, interface.
> -hugetlb.txt
> -	- HugeTLB Controller implementation and usage details.
> -memcg_test.txt
> -	- Memory Resource Controller; implementation details.
> -memory.txt
> -	- Memory Resource Controller; design, accounting, interface, testing.
> -net_cls.txt
> -	- Network classifier cgroups details and usages.
> -net_prio.txt
> -	- Network priority cgroups details and usages.
> -pids.txt
> -	- Process number cgroups details and usages.
> diff --git a/Documentation/devicetree/00-INDEX b/Documentation/devicetree/00-INDEX
> deleted file mode 100644
> index 8c4102c..0000000
> --- a/Documentation/devicetree/00-INDEX
> +++ /dev/null
> @@ -1,12 +0,0 @@
> -Documentation for device trees, a data structure by which bootloaders pass
> -hardware layout to Linux in a device-independent manner, simplifying hardware
> -probing.  This subsystem is maintained by Grant Likely
> -<grant.likely@secretlab.ca> and has a mailing list at
> -https://lists.ozlabs.org/listinfo/devicetree-discuss
> -
> -00-INDEX
> -	- this file
> -booting-without-of.txt
> -	- Booting Linux without Open Firmware, describes history and format of device trees.
> -usage-model.txt
> -	- How Linux uses DT and what DT aims to solve.
> \ No newline at end of file
> diff --git a/Documentation/fb/00-INDEX b/Documentation/fb/00-INDEX
> deleted file mode 100644
> index fe85e7c..0000000
> --- a/Documentation/fb/00-INDEX
> +++ /dev/null
> @@ -1,75 +0,0 @@
> -Index of files in Documentation/fb.  If you think something about frame
> -buffer devices needs an entry here, needs correction or you've written one
> -please mail me.
> -				    Geert Uytterhoeven <geert@linux-m68k.org>
> -
> -00-INDEX
> -	- this file.
> -api.txt
> -	- The frame buffer API between applications and buffer devices.
> -arkfb.txt
> -	- info on the fbdev driver for ARK Logic chips.
> -aty128fb.txt
> -	- info on the ATI Rage128 frame buffer driver.
> -cirrusfb.txt
> -	- info on the driver for Cirrus Logic chipsets.
> -cmap_xfbdev.txt
> -	- an introduction to fbdev's cmap structures.
> -deferred_io.txt
> -	- an introduction to deferred IO.
> -efifb.txt
> -	- info on the EFI platform driver for Intel based Apple computers.
> -ep93xx-fb.txt
> -	- info on the driver for EP93xx LCD controller.
> -fbcon.txt
> -	- intro to and usage guide for the framebuffer console (fbcon).
> -framebuffer.txt
> -	- introduction to frame buffer devices.
> -gxfb.txt
> -	- info on the framebuffer driver for AMD Geode GX2 based processors.
> -intel810.txt
> -	- documentation for the Intel 810/815 framebuffer driver.
> -intelfb.txt
> -	- docs for Intel 830M/845G/852GM/855GM/865G/915G/945G fb driver.
> -internals.txt
> -	- quick overview of frame buffer device internals.
> -lxfb.txt
> -	- info on the framebuffer driver for AMD Geode LX based processors.
> -matroxfb.txt
> -	- info on the Matrox framebuffer driver for Alpha, Intel and PPC.
> -metronomefb.txt
> -	- info on the driver for the Metronome display controller.
> -modedb.txt
> -	- info on the video mode database.
> -pvr2fb.txt
> -	- info on the PowerVR 2 frame buffer driver.
> -pxafb.txt
> -	- info on the driver for the PXA25x LCD controller.
> -s3fb.txt
> -	- info on the fbdev driver for S3 Trio/Virge chips.
> -sa1100fb.txt
> -	- information about the driver for the SA-1100 LCD controller.
> -sh7760fb.txt
> -	- info on the SH7760/SH7763 integrated LCDC Framebuffer driver.
> -sisfb.txt
> -	- info on the framebuffer device driver for various SiS chips.
> -sm501.txt
> -	- info on the framebuffer device driver for sm501 videoframebuffer.
> -sstfb.txt
> -	- info on the frame buffer driver for 3dfx' Voodoo Graphics boards.
> -tgafb.txt
> -	- info on the TGA (DECChip 21030) frame buffer driver.
> -tridentfb.txt
> -	info on the framebuffer driver for some Trident chip based cards.
> -udlfb.txt
> -	- Driver for DisplayLink USB 2.0 chips.
> -uvesafb.txt
> -	- info on the userspace VESA (VBE2+ compliant) frame buffer device.
> -vesafb.txt
> -	- info on the VESA frame buffer device.
> -viafb.modes
> -	- list of modes for VIA Integration Graphic Chip.
> -viafb.txt
> -	- info on the VIA Integration Graphic Chip console framebuffer driver.
> -vt8623fb.txt
> -	- info on the fb driver for the graphics core in VIA VT8623 chipsets.
> diff --git a/Documentation/filesystems/00-INDEX b/Documentation/filesystems/00-INDEX
> deleted file mode 100644
> index 0937bad..0000000
> --- a/Documentation/filesystems/00-INDEX
> +++ /dev/null
> @@ -1,153 +0,0 @@
> -00-INDEX
> -	- this file (info on some of the filesystems supported by linux).
> -Locking
> -	- info on locking rules as they pertain to Linux VFS.
> -9p.txt
> -	- 9p (v9fs) is an implementation of the Plan 9 remote fs protocol.
> -adfs.txt
> -	- info and mount options for the Acorn Advanced Disc Filing System.
> -afs.txt
> -	- info and examples for the distributed AFS (Andrew File System) fs.
> -affs.txt
> -	- info and mount options for the Amiga Fast File System.
> -autofs-mount-control.txt
> -	- info on device control operations for autofs module.
> -automount-support.txt
> -	- information about filesystem automount support.
> -befs.txt
> -	- information about the BeOS filesystem for Linux.
> -bfs.txt
> -	- info for the SCO UnixWare Boot Filesystem (BFS).
> -btrfs.txt
> -	- info for the BTRFS filesystem.
> -caching/
> -	- directory containing filesystem cache documentation.
> -ceph.txt
> -	- info for the Ceph Distributed File System.
> -cifs/
> -	- directory containing CIFS filesystem documentation and example code.
> -coda.txt
> -	- description of the CODA filesystem.
> -configfs/
> -	- directory containing configfs documentation and example code.
> -cramfs.txt
> -	- info on the cram filesystem for small storage (ROMs etc).
> -dax.txt
> -	- info on avoiding the page cache for files stored on CPU-addressable
> -	  storage devices.
> -debugfs.txt
> -	- info on the debugfs filesystem.
> -devpts.txt
> -	- info on the devpts filesystem.
> -directory-locking
> -	- info about the locking scheme used for directory operations.
> -dlmfs.txt
> -	- info on the userspace interface to the OCFS2 DLM.
> -dnotify.txt
> -	- info about directory notification in Linux.
> -dnotify_test.c
> -	- example program for dnotify.
> -ecryptfs.txt
> -	- docs on eCryptfs: stacked cryptographic filesystem for Linux.
> -efivarfs.txt
> -	- info for the efivarfs filesystem.
> -exofs.txt
> -	- info, usage, mount options, design about EXOFS.
> -ext2.txt
> -	- info, mount options and specifications for the Ext2 filesystem.
> -ext3.txt
> -	- info, mount options and specifications for the Ext3 filesystem.
> -ext4.txt
> -	- info, mount options and specifications for the Ext4 filesystem.
> -f2fs.txt
> -	- info and mount options for the F2FS filesystem.
> -fiemap.txt
> -	- info on fiemap ioctl.
> -files.txt
> -	- info on file management in the Linux kernel.
> -fuse.txt
> -	- info on the Filesystem in User SpacE including mount options.
> -gfs2-glocks.txt
> -	- info on the Global File System 2 - Glock internal locking rules.
> -gfs2-uevents.txt
> -	- info on the Global File System 2 - uevents.
> -gfs2.txt
> -	- info on the Global File System 2.
> -hfs.txt
> -	- info on the Macintosh HFS Filesystem for Linux.
> -hfsplus.txt
> -	- info on the Macintosh HFSPlus Filesystem for Linux.
> -hpfs.txt
> -	- info and mount options for the OS/2 HPFS.
> -inotify.txt
> -	- info on the powerful yet simple file change notification system.
> -isofs.txt
> -	- info and mount options for the ISO 9660 (CDROM) filesystem.
> -jfs.txt
> -	- info and mount options for the JFS filesystem.
> -locks.txt
> -	- info on file locking implementations, flock() vs. fcntl(), etc.
> -mandatory-locking.txt
> -	- info on the Linux implementation of Sys V mandatory file locking.
> -nfs/
> -	- nfs-related documentation.
> -nilfs2.txt
> -	- info and mount options for the NILFS2 filesystem.
> -ntfs.txt
> -	- info and mount options for the NTFS filesystem (Windows NT).
> -ocfs2.txt
> -	- info and mount options for the OCFS2 clustered filesystem.
> -omfs.txt
> -	- info on the Optimized MPEG FileSystem.
> -path-lookup.txt
> -	- info on path walking and name lookup locking.
> -pohmelfs/
> -	- directory containing pohmelfs filesystem documentation.
> -porting
> -	- various information on filesystem porting.
> -proc.txt
> -	- info on Linux's /proc filesystem.
> -qnx6.txt
> -	- info on the QNX6 filesystem.
> -quota.txt
> -	- info on Quota subsystem.
> -ramfs-rootfs-initramfs.txt
> -	- info on the 'in memory' filesystems ramfs, rootfs and initramfs.
> -relay.txt
> -	- info on relay, for efficient streaming from kernel to user space.
> -romfs.txt
> -	- description of the ROMFS filesystem.
> -seq_file.txt
> -	- how to use the seq_file API.
> -sharedsubtree.txt
> -	- a description of shared subtrees for namespaces.
> -spufs.txt
> -	- info and mount options for the SPU filesystem used on Cell.
> -squashfs.txt
> -	- info on the squashfs filesystem.
> -sysfs-pci.txt
> -	- info on accessing PCI device resources through sysfs.
> -sysfs-tagging.txt
> -	- info on sysfs tagging to avoid duplicates.
> -sysfs.txt
> -	- info on sysfs, a ram-based filesystem for exporting kernel objects.
> -sysv-fs.txt
> -	- info on the SystemV/V7/Xenix/Coherent filesystem.
> -tmpfs.txt
> -	- info on tmpfs, a filesystem that holds all files in virtual memory.
> -ubifs.txt
> -	- info on the Unsorted Block Images FileSystem.
> -udf.txt
> -	- info and mount options for the UDF filesystem.
> -ufs.txt
> -	- info on the ufs filesystem.
> -vfat.txt
> -	- info on using the VFAT filesystem used in Windows NT and Windows 95.
> -vfs.txt
> -	- overview of the Virtual File System.
> -xfs-delayed-logging-design.txt
> -	- info on the XFS Delayed Logging Design.
> -xfs-self-describing-metadata.txt
> -	- info on XFS Self Describing Metadata.
> -xfs.txt
> -	- info and mount options for the XFS filesystem.
> diff --git a/Documentation/filesystems/nfs/00-INDEX b/Documentation/filesystems/nfs/00-INDEX
> deleted file mode 100644
> index 53f3b59..0000000
> --- a/Documentation/filesystems/nfs/00-INDEX
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -00-INDEX
> -	- this file (nfs-related documentation).
> -Exporting
> -	- explanation of how to make filesystems exportable.
> -fault_injection.txt
> -	- information for using fault injection on the server
> -knfsd-stats.txt
> -	- statistics which the NFS server makes available to user space.
> -nfs.txt
> -	- nfs client, and DNS resolution for fs_locations.
> -nfs41-server.txt
> -	- info on the Linux server implementation of NFSv4 minor version 1.
> -nfs-rdma.txt
> -	- how to install and setup the Linux NFS/RDMA client and server software
> -nfsd-admin-interfaces.txt
> -	- Administrative interfaces for nfsd.
> -nfsroot.txt
> -	- short guide on setting up a diskless box with NFS root filesystem.
> -pnfs.txt
> -	- short explanation of some of the internals of the pnfs client code
> -rpc-cache.txt
> -	- introduction to the caching mechanisms in the sunrpc layer.
> -idmapper.txt
> -	- information for configuring request-keys to be used by idmapper
> -rpc-server-gss.txt
> -	- Information on GSS authentication support in the NFS Server
> diff --git a/Documentation/fmc/00-INDEX b/Documentation/fmc/00-INDEX
> deleted file mode 100644
> index 431c695..0000000
> --- a/Documentation/fmc/00-INDEX
> +++ /dev/null
> @@ -1,38 +0,0 @@
> -
> -Documentation in this directory comes from sections of the manual we
> -wrote for the externally-developed fmc-bus package. The complete
> -manual as of today (2013-02) is available in PDF format at
> -http://www.ohwr.org/projects/fmc-bus/files
> -
> -00-INDEX
> -	- this file.
> -
> -FMC-and-SDB.txt
> -	- What are FMC and SDB, basic concepts for this framework
> -
> -API.txt
> -	- The functions that are exported by the bus driver
> -
> -parameters.txt
> -	- The module parameters
> -
> -carrier.txt
> -	- writing a carrier (a device)
> -
> -mezzanine.txt
> -	- writing code for your mezzanine (a driver)
> -
> -identifiers.txt
> -	- how identification and matching works
> -
> -fmc-fakedev.txt
> -	- about drivers/fmc/fmc-fakedev.ko
> -
> -fmc-trivial.txt
> -	- about drivers/fmc/fmc-trivial.ko
> -
> -fmc-write-eeprom.txt
> -	- about drivers/fmc/fmc-write-eeprom.ko
> -
> -fmc-chardev.txt
> -	- about drivers/fmc/fmc-chardev.ko
> diff --git a/Documentation/gpio/00-INDEX b/Documentation/gpio/00-INDEX
> deleted file mode 100644
> index 17e19a6..0000000
> --- a/Documentation/gpio/00-INDEX
> +++ /dev/null
> @@ -1,4 +0,0 @@
> -00-INDEX
> -	- This file
> -sysfs.txt
> -	- Information about the GPIO sysfs interface
> diff --git a/Documentation/ide/00-INDEX b/Documentation/ide/00-INDEX
> deleted file mode 100644
> index 22f98ca..0000000
> --- a/Documentation/ide/00-INDEX
> +++ /dev/null
> @@ -1,14 +0,0 @@
> -00-INDEX
> -    	- this file
> -ChangeLog.ide-cd.1994-2004
> -	- ide-cd changelog
> -ChangeLog.ide-floppy.1996-2002
> -	- ide-floppy changelog
> -ChangeLog.ide-tape.1995-2002
> -	- ide-tape changelog
> -ide-tape.txt
> -	- info on the IDE ATAPI streaming tape driver
> -ide.txt
> -	- important info for users of ATA devices (IDE/EIDE disks and CD-ROMS).
> -warm-plug-howto.txt
> -	- using sysfs to remove and add IDE devices.
> \ No newline at end of file
> diff --git a/Documentation/ioctl/00-INDEX b/Documentation/ioctl/00-INDEX
> deleted file mode 100644
> index c1a9257..0000000
> --- a/Documentation/ioctl/00-INDEX
> +++ /dev/null
> @@ -1,12 +0,0 @@
> -00-INDEX
> -	- this file
> -botching-up-ioctls.txt
> -	- how to avoid botching up ioctls
> -cdrom.txt
> -	- summary of CDROM ioctl calls
> -hdio.txt
> -	- summary of HDIO_ ioctl calls
> -ioctl-decoding.txt
> -	- how to decode the bits of an IOCTL code
> -ioctl-number.txt
> -	- how to implement and register device/driver ioctl calls
> diff --git a/Documentation/isdn/00-INDEX b/Documentation/isdn/00-INDEX
> deleted file mode 100644
> index 2d1889b..0000000
> --- a/Documentation/isdn/00-INDEX
> +++ /dev/null
> @@ -1,42 +0,0 @@
> -00-INDEX
> -	- this file (info on ISDN implementation for Linux)
> -CREDITS
> -	- list of the kind folks that brought you this stuff.
> -HiSax.cert
> -	- information about the ITU approval certification of the HiSax driver.
> -INTERFACE
> -	- description of isdn4linux Link Level and Hardware Level interfaces.
> -INTERFACE.fax
> -	- description of the fax subinterface of isdn4linux.
> -INTERFACE.CAPI
> -	- description of kernel CAPI Link Level to Hardware Level interface.
> -README
> -	- general info on what you need and what to do for Linux ISDN.
> -README.FAQ
> -	- general info for FAQ.
> -README.HiSax
> -	- info on the HiSax driver which replaces the old teles.
> -README.audio
> -	- info for running audio over ISDN.
> -README.avmb1
> -	- info on driver for AVM-B1 ISDN card.
> -README.concap
> -	- info on "CONCAP" encapsulation protocol interface used for X.25.
> -README.diversion
> -	- info on module for isdn diversion services.
> -README.fax
> -	- info for using Fax over ISDN.
> -README.gigaset
> -	- info on the drivers for Siemens Gigaset ISDN adapters
> -README.hfc-pci
> -	- info on hfc-pci based cards.
> -README.hysdn
> -        - info on driver for Hypercope active HYSDN cards
> -README.mISDN
> -	- info on the Modular ISDN subsystem (mISDN)
> -README.syncppp
> -	- info on running Sync PPP over ISDN.
> -README.x25
> -	- info for running X.25 over ISDN.
> -syncPPP.FAQ
> -	- frequently asked questions about running PPP over ISDN.
> diff --git a/Documentation/kbuild/00-INDEX b/Documentation/kbuild/00-INDEX
> deleted file mode 100644
> index 8c5e6aa..0000000
> --- a/Documentation/kbuild/00-INDEX
> +++ /dev/null
> @@ -1,14 +0,0 @@
> -00-INDEX
> -	- this file: info on the kernel build process
> -headers_install.txt
> -	- how to export Linux headers for use by userspace
> -kbuild.txt
> -	- developer information on kbuild
> -kconfig.txt
> -	- usage help for make *config
> -kconfig-language.txt
> -	- specification of Config Language, the language in Kconfig files
> -makefiles.txt
> -	- developer information for linux kernel makefiles
> -modules.txt
> -	- how to build modules and to install them
> diff --git a/Documentation/laptops/00-INDEX b/Documentation/laptops/00-INDEX
> deleted file mode 100644
> index 86169dc..0000000
> --- a/Documentation/laptops/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- This file
> -asus-laptop.txt
> -	- information on the Asus Laptop Extras driver.
> -disk-shock-protection.txt
> -	- information on hard disk shock protection.
> -laptop-mode.txt
> -	- how to conserve battery power using laptop-mode.
> -sony-laptop.txt
> -	- Sony Notebook Control Driver (SNC) Readme.
> -sonypi.txt
> -	- info on Linux Sony Programmable I/O Device support.
> -thinkpad-acpi.txt
> -	- information on the (IBM and Lenovo) ThinkPad ACPI Extras driver.
> -toshiba_haps.txt
> -	- information on the Toshiba HDD Active Protection Sensor driver.
> diff --git a/Documentation/leds/00-INDEX b/Documentation/leds/00-INDEX
> deleted file mode 100644
> index ae626b2..0000000
> --- a/Documentation/leds/00-INDEX
> +++ /dev/null
> @@ -1,32 +0,0 @@
> -00-INDEX
> -	- This file
> -leds-blinkm.txt
> -	- Driver for BlinkM LED-devices.
> -leds-class.txt
> -	- documents LED handling under Linux.
> -leds-class-flash.txt
> -	- documents flash LED handling under Linux.
> -leds-lm3556.txt
> -	- notes on how to use the leds-lm3556 driver.
> -leds-lp3944.txt
> -	- notes on how to use the leds-lp3944 driver.
> -leds-lp5521.txt
> -	- notes on how to use the leds-lp5521 driver.
> -leds-lp5523.txt
> -	- notes on how to use the leds-lp5523 driver.
> -leds-lp5562.txt
> -	- notes on how to use the leds-lp5562 driver.
> -leds-lp55xx.txt
> -	- description about lp55xx common driver.
> -leds-lm3556.txt
> -	- notes on how to use the leds-lm3556 driver.
> -leds-mlxcpld.txt
> -	- notes on how to use the leds-mlxcpld driver.
> -ledtrig-oneshot.txt
> -	- One-shot LED trigger for both sporadic and dense events.
> -ledtrig-transient.txt
> -	- LED Transient Trigger, one shot timer activation.
> -ledtrig-usbport.txt
> -	- notes on how to use the drivers/usb/core/ledtrig-usbport.c trigger.
> -uleds.txt
> -	- notes on how to use the uleds driver.
> diff --git a/Documentation/locking/00-INDEX b/Documentation/locking/00-INDEX
> deleted file mode 100644
> index c256c9b..0000000
> --- a/Documentation/locking/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- this file.
> -lockdep-design.txt
> -	- documentation on the runtime locking correctness validator.
> -lockstat.txt
> -	- info on collecting statistics on locks (and contention).
> -mutex-design.txt
> -	- info on the generic mutex subsystem.
> -rt-mutex-design.txt
> -	- description of the RealTime mutex implementation design.
> -rt-mutex.txt
> -	- desc. of RT-mutex subsystem with PI (Priority Inheritance) support.
> -spinlocks.txt
> -	- info on using spinlocks to provide exclusive access in kernel.
> -ww-mutex-design.txt
> -	- Intro to Mutex wait/would deadlock handling.s
> diff --git a/Documentation/m68k/00-INDEX b/Documentation/m68k/00-INDEX
> deleted file mode 100644
> index 2be8c6b..0000000
> --- a/Documentation/m68k/00-INDEX
> +++ /dev/null
> @@ -1,7 +0,0 @@
> -00-INDEX
> -	- this file
> -README.buddha
> -	- Amiga Buddha and Catweasel IDE Driver
> -kernel-options.txt
> -	- command line options for Linux/m68k
> -
> diff --git a/Documentation/mips/00-INDEX b/Documentation/mips/00-INDEX
> deleted file mode 100644
> index 8ae9cff..0000000
> --- a/Documentation/mips/00-INDEX
> +++ /dev/null
> @@ -1,4 +0,0 @@
> -00-INDEX
> -	- this file.
> -AU1xxx_IDE.README
> -	- README for MIPS AU1XXX IDE driver.
> diff --git a/Documentation/mmc/00-INDEX b/Documentation/mmc/00-INDEX
> deleted file mode 100644
> index 4623bc0..0000000
> --- a/Documentation/mmc/00-INDEX
> +++ /dev/null
> @@ -1,10 +0,0 @@
> -00-INDEX
> -        - this file
> -mmc-dev-attrs.txt
> -        - info on SD and MMC device attributes
> -mmc-dev-parts.txt
> -        - info on SD and MMC device partitions
> -mmc-async-req.txt
> -        - info on mmc asynchronous requests
> -mmc-tools.txt
> -	- info on mmc-utils tools
> diff --git a/Documentation/netlabel/00-INDEX b/Documentation/netlabel/00-INDEX
> deleted file mode 100644
> index 837bf35..0000000
> --- a/Documentation/netlabel/00-INDEX
> +++ /dev/null
> @@ -1,10 +0,0 @@
> -00-INDEX
> -	- this file.
> -cipso_ipv4.txt
> -	- documentation on the IPv4 CIPSO protocol engine.
> -draft-ietf-cipso-ipsecurity-01.txt
> -	- IETF draft of the CIPSO protocol, dated 16 July 1992.
> -introduction.txt
> -	- NetLabel introduction, READ THIS FIRST.
> -lsm_interface.txt
> -	- documentation on the NetLabel kernel security module API.
> diff --git a/Documentation/netlabel/cipso_ipv4.txt b/Documentation/netlabel/cipso_ipv4.txt
> index 93dacb1..a607548 100644
> --- a/Documentation/netlabel/cipso_ipv4.txt
> +++ b/Documentation/netlabel/cipso_ipv4.txt
> @@ -6,11 +6,12 @@ May 17, 2006
> 
>   * Overview
> 
> -The NetLabel CIPSO/IPv4 protocol engine is based on the IETF Commercial IP
> -Security Option (CIPSO) draft from July 16, 1992.  A copy of this draft can be
> -found in this directory, consult '00-INDEX' for the filename.  While the IETF
> -draft never made it to an RFC standard it has become a de-facto standard for
> -labeled networking and is used in many trusted operating systems.
> +The NetLabel CIPSO/IPv4 protocol engine is based on the IETF Commercial
> +IP Security Option (CIPSO) draft from July 16, 1992.  A copy of this
> +draft can be found in this directory
> +(draft-ietf-cipso-ipsecurity-01.txt).  While the IETF draft never made
> +it to an RFC standard it has become a de-facto standard for labeled
> +networking and is used in many trusted operating systems.
> 
>   * Outbound Packet Processing
> 
> diff --git a/Documentation/netlabel/introduction.txt b/Documentation/netlabel/introduction.txt
> index 5ecd8d1..3caf77b 100644
> --- a/Documentation/netlabel/introduction.txt
> +++ b/Documentation/netlabel/introduction.txt
> @@ -22,7 +22,7 @@ refrain from calling the protocol engines directly, instead they should use
>  the NetLabel kernel security module API described below.
> 
>  Detailed information about each NetLabel protocol engine can be found in this
> -directory, consult '00-INDEX' for filenames.
> +directory.
> 
>   * Communication Layer
> 
> diff --git a/Documentation/networking/00-INDEX b/Documentation/networking/00-INDEX
> deleted file mode 100644
> index 02a323c..0000000
> --- a/Documentation/networking/00-INDEX
> +++ /dev/null
> @@ -1,234 +0,0 @@
> -00-INDEX
> -	- this file
> -3c509.txt
> -	- information on the 3Com Etherlink III Series Ethernet cards.
> -6pack.txt
> -	- info on the 6pack protocol, an alternative to KISS for AX.25
> -LICENSE.qla3xxx
> -	- GPLv2 for QLogic Linux Networking HBA Driver
> -LICENSE.qlge
> -	- GPLv2 for QLogic Linux qlge NIC Driver
> -LICENSE.qlcnic
> -	- GPLv2 for QLogic Linux qlcnic NIC Driver
> -PLIP.txt
> -	- PLIP: The Parallel Line Internet Protocol device driver
> -README.ipw2100
> -	- README for the Intel PRO/Wireless 2100 driver.
> -README.ipw2200
> -	- README for the Intel PRO/Wireless 2915ABG and 2200BG driver.
> -README.sb1000
> -	- info on General Instrument/NextLevel SURFboard1000 cable modem.
> -altera_tse.txt
> -	- Altera Triple-Speed Ethernet controller.
> -arcnet-hardware.txt
> -	- tons of info on ARCnet, hubs, jumper settings for ARCnet cards, etc.
> -arcnet.txt
> -	- info on the using the ARCnet driver itself.
> -atm.txt
> -	- info on where to get ATM programs and support for Linux.
> -ax25.txt
> -	- info on using AX.25 and NET/ROM code for Linux
> -baycom.txt
> -	- info on the driver for Baycom style amateur radio modems
> -bonding.txt
> -	- Linux Ethernet Bonding Driver HOWTO: link aggregation in Linux.
> -bridge.txt
> -	- where to get user space programs for ethernet bridging with Linux.
> -cdc_mbim.txt
> -	- 3G/LTE USB modem (Mobile Broadband Interface Model)
> -checksum-offloads.txt
> -	- Explanation of checksum offloads; LCO, RCO
> -cops.txt
> -	- info on the COPS LocalTalk Linux driver
> -cs89x0.txt
> -	- the Crystal LAN (CS8900/20-based) Ethernet ISA adapter driver
> -cxacru.txt
> -	- Conexant AccessRunner USB ADSL Modem
> -cxacru-cf.py
> -	- Conexant AccessRunner USB ADSL Modem configuration file parser
> -cxgb.txt
> -	- Release Notes for the Chelsio N210 Linux device driver.
> -dccp.txt
> -	- the Datagram Congestion Control Protocol (DCCP) (RFC 4340..42).
> -dctcp.txt
> -	- DataCenter TCP congestion control
> -de4x5.txt
> -	- the Digital EtherWORKS DE4?? and DE5?? PCI Ethernet driver
> -decnet.txt
> -	- info on using the DECnet networking layer in Linux.
> -dl2k.txt
> -	- README for D-Link DL2000-based Gigabit Ethernet Adapters (dl2k.ko).
> -dm9000.txt
> -	- README for the Simtec DM9000 Network driver.
> -dmfe.txt
> -	- info on the Davicom DM9102(A)/DM9132/DM9801 fast ethernet driver.
> -dns_resolver.txt
> -	- The DNS resolver module allows kernel servies to make DNS queries.
> -driver.txt
> -	- Softnet driver issues.
> -ena.txt
> -	- info on Amazon's Elastic Network Adapter (ENA)
> -e100.txt
> -	- info on Intel's EtherExpress PRO/100 line of 10/100 boards
> -e1000.txt
> -	- info on Intel's E1000 line of gigabit ethernet boards
> -e1000e.txt
> -	- README for the Intel Gigabit Ethernet Driver (e1000e).
> -eql.txt
> -	- serial IP load balancing
> -fib_trie.txt
> -	- Level Compressed Trie (LC-trie) notes: a structure for routing.
> -filter.txt
> -	- Linux Socket Filtering
> -fore200e.txt
> -	- FORE Systems PCA-200E/SBA-200E ATM NIC driver info.
> -framerelay.txt
> -	- info on using Frame Relay/Data Link Connection Identifier (DLCI).
> -gen_stats.txt
> -	- Generic networking statistics for netlink users.
> -generic-hdlc.txt
> -	- The generic High Level Data Link Control (HDLC) layer.
> -generic_netlink.txt
> -	- info on Generic Netlink
> -gianfar.txt
> -	- Gianfar Ethernet Driver.
> -i40e.txt
> -	- README for the Intel Ethernet Controller XL710 Driver (i40e).
> -i40evf.txt
> -	- Short note on the Driver for the Intel(R) XL710 X710 Virtual Function
> -ieee802154.txt
> -	- Linux IEEE 802.15.4 implementation, API and drivers
> -igb.txt
> -	- README for the Intel Gigabit Ethernet Driver (igb).
> -igbvf.txt
> -	- README for the Intel Gigabit Ethernet Driver (igbvf).
> -ip-sysctl.txt
> -	- /proc/sys/net/ipv4/* variables
> -ip_dynaddr.txt
> -	- IP dynamic address hack e.g. for auto-dialup links
> -ipddp.txt
> -	- AppleTalk-IP Decapsulation and AppleTalk-IP Encapsulation
> -iphase.txt
> -	- Interphase PCI ATM (i)Chip IA Linux driver info.
> -ipsec.txt
> -	- Note on not compressing IPSec payload and resulting failed policy check.
> -ipv6.txt
> -	- Options to the ipv6 kernel module.
> -ipvs-sysctl.txt
> -	- Per-inode explanation of the /proc/sys/net/ipv4/vs interface.
> -irda.txt
> -	- where to get IrDA (infrared) utilities and info for Linux.
> -ixgb.txt
> -	- README for the Intel 10 Gigabit Ethernet Driver (ixgb).
> -ixgbe.txt
> -	- README for the Intel 10 Gigabit Ethernet Driver (ixgbe).
> -ixgbevf.txt
> -	- README for the Intel Virtual Function (VF) Driver (ixgbevf).
> -l2tp.txt
> -	- User guide to the L2TP tunnel protocol.
> -lapb-module.txt
> -	- programming information of the LAPB module.
> -ltpc.txt
> -	- the Apple or Farallon LocalTalk PC card driver
> -mac80211-auth-assoc-deauth.txt
> -	- authentication and association / deauth-disassoc with max80211
> -mac80211-injection.txt
> -	- HOWTO use packet injection with mac80211
> -multiqueue.txt
> -	- HOWTO for multiqueue network device support.
> -netconsole.txt
> -	- The network console module netconsole.ko: configuration and notes.
> -netdev-features.txt
> -	- Network interface features API description.
> -netdevices.txt
> -	- info on network device driver functions exported to the kernel.
> -netif-msg.txt
> -	- Design of the network interface message level setting (NETIF_MSG_*).
> -netlink_mmap.txt
> -	- memory mapped I/O with netlink
> -nf_conntrack-sysctl.txt
> -	- list of netfilter-sysctl knobs.
> -nfc.txt
> -	- The Linux Near Field Communication (NFS) subsystem.
> -openvswitch.txt
> -	- Open vSwitch developer documentation.
> -operstates.txt
> -	- Overview of network interface operational states.
> -packet_mmap.txt
> -	- User guide to memory mapped packet socket rings (PACKET_[RT]X_RING).
> -phonet.txt
> -	- The Phonet packet protocol used in Nokia cellular modems.
> -phy.txt
> -	- The PHY abstraction layer.
> -pktgen.txt
> -	- User guide to the kernel packet generator (pktgen.ko).
> -policy-routing.txt
> -	- IP policy-based routing
> -ppp_generic.txt
> -	- Information about the generic PPP driver.
> -proc_net_tcp.txt
> -	- Per inode overview of the /proc/net/tcp and /proc/net/tcp6 interfaces.
> -radiotap-headers.txt
> -	- Background on radiotap headers.
> -ray_cs.txt
> -	- Raylink Wireless LAN card driver info.
> -rds.txt
> -	- Background on the reliable, ordered datagram delivery method RDS.
> -regulatory.txt
> -	- Overview of the Linux wireless regulatory infrastructure.
> -rxrpc.txt
> -	- Guide to the RxRPC protocol.
> -s2io.txt
> -	- Release notes for Neterion Xframe I/II 10GbE driver.
> -scaling.txt
> -	- Explanation of network scaling techniques: RSS, RPS, RFS, aRFS, XPS.
> -sctp.txt
> -	- Notes on the Linux kernel implementation of the SCTP protocol.
> -secid.txt
> -	- Explanation of the secid member in flow structures.
> -skfp.txt
> -	- SysKonnect FDDI (SK-5xxx, Compaq Netelligent) driver info.
> -smc9.txt
> -	- the driver for SMC's 9000 series of Ethernet cards
> -spider_net.txt
> -	- README for the Spidernet Driver (as found in PS3 / Cell BE).
> -stmmac.txt
> -	- README for the STMicro Synopsys Ethernet driver.
> -tc-actions-env-rules.txt
> -	- rules for traffic control (tc) actions.
> -timestamping.txt
> -	- overview of network packet timestamping variants.
> -tcp.txt
> -	- short blurb on how TCP output takes place.
> -tcp-thin.txt
> -	- kernel tuning options for low rate 'thin' TCP streams.
> -team.txt
> -	- pointer to information for ethernet teaming devices.
> -tlan.txt
> -	- ThunderLAN (Compaq Netelligent 10/100, Olicom OC-2xxx) driver info.
> -tproxy.txt
> -	- Transparent proxy support user guide.
> -tuntap.txt
> -	- TUN/TAP device driver, allowing user space Rx/Tx of packets.
> -udplite.txt
> -	- UDP-Lite protocol (RFC 3828) introduction.
> -vortex.txt
> -	- info on using 3Com Vortex (3c590, 3c592, 3c595, 3c597) Ethernet cards.
> -vxge.txt
> -	- README for the Neterion X3100 PCIe Server Adapter.
> -vxlan.txt
> -	- Virtual extensible LAN overview
> -x25.txt
> -	- general info on X.25 development.
> -x25-iface.txt
> -	- description of the X.25 Packet Layer to LAPB device interface.
> -xfrm_device.txt
> -	- description of XFRM offload API
> -xfrm_proc.txt
> -	- description of the statistics package for XFRM.
> -xfrm_sync.txt
> -	- sync patches for XFRM enable migration of an SA between hosts.
> -xfrm_sysctl.txt
> -	- description of the XFRM configuration options.
> -z8530drv.txt
> -	- info about Linux driver for Z8530 based HDLC cards for AX.25
> diff --git a/Documentation/parisc/00-INDEX b/Documentation/parisc/00-INDEX
> deleted file mode 100644
> index cbd0609..0000000
> --- a/Documentation/parisc/00-INDEX
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -00-INDEX
> -	- this file.
> -debugging
> -	- some debugging hints for real-mode code
> -registers
> -	- current/planned usage of registers
> diff --git a/Documentation/power/00-INDEX b/Documentation/power/00-INDEX
> deleted file mode 100644
> index 7f3c2de..0000000
> --- a/Documentation/power/00-INDEX
> +++ /dev/null
> @@ -1,44 +0,0 @@
> -00-INDEX
> -	- This file
> -apm-acpi.txt
> -	- basic info about the APM and ACPI support.
> -basic-pm-debugging.txt
> -	- Debugging suspend and resume
> -charger-manager.txt
> -	- Battery charger management.
> -admin-guide/devices.rst
> -	- How drivers interact with system-wide power management
> -drivers-testing.txt
> -	- Testing suspend and resume support in device drivers
> -freezing-of-tasks.txt
> -	- How processes and controlled during suspend
> -interface.txt
> -	- Power management user interface in /sys/power
> -opp.txt
> -	- Operating Performance Point library
> -pci.txt
> -	- How the PCI Subsystem Does Power Management
> -pm_qos_interface.txt
> -	- info on Linux PM Quality of Service interface
> -power_supply_class.txt
> -	- Tells userspace about battery, UPS, AC or DC power supply properties
> -runtime_pm.txt
> -	- Power management framework for I/O devices.
> -s2ram.txt
> -	- How to get suspend to ram working (and debug it when it isn't)
> -states.txt
> -	- System power management states
> -suspend-and-cpuhotplug.txt
> -	- Explains the interaction between Suspend-to-RAM (S3) and CPU hotplug
> -swsusp-and-swap-files.txt
> -	- Using swap files with software suspend (to disk)
> -swsusp-dmcrypt.txt
> -	- How to use dm-crypt and software suspend (to disk) together
> -swsusp.txt
> -	- Goals, implementation, and usage of software suspend (ACPI S3)
> -tricks.txt
> -	- How to trick software suspend (to disk) into working when it isn't
> -userland-swsusp.txt
> -	- Experimental implementation of software suspend in userspace
> -video.txt
> -	- Video issues during resume from suspend
> diff --git a/Documentation/powerpc/00-INDEX b/Documentation/powerpc/00-INDEX
> deleted file mode 100644
> index 9dc845c..0000000
> --- a/Documentation/powerpc/00-INDEX
> +++ /dev/null
> @@ -1,34 +0,0 @@
> -Index of files in Documentation/powerpc.  If you think something about
> -Linux/PPC needs an entry here, needs correction or you've written one
> -please mail me.
> -                                        Cort Dougan (cort@fsmlabs.com)
> -
> -00-INDEX
> -	- this file
> -bootwrapper.txt
> -	- Information on how the powerpc kernel is wrapped for boot on various
> -	  different platforms.
> -cpu_features.txt
> -	- info on how we support a variety of CPUs with minimal compile-time
> -	options.
> -cxl.txt
> -	- Overview of the CXL driver.
> -eeh-pci-error-recovery.txt
> -	- info on PCI Bus EEH Error Recovery
> -firmware-assisted-dump.txt
> -	- Documentation on the firmware assisted dump mechanism "fadump".
> -hvcs.txt
> -	- IBM "Hypervisor Virtual Console Server" Installation Guide
> -mpc52xx.txt
> -	- Linux 2.6.x on MPC52xx family
> -pmu-ebb.txt
> -	- Description of the API for using the PMU with Event Based Branches.
> -qe_firmware.txt
> -	- describes the layout of firmware binaries for the Freescale QUICC
> -	  Engine and the code that parses and uploads the microcode therein.
> -ptrace.txt
> -	- Information on the ptrace interfaces for hardware debug registers.
> -transactional_memory.txt
> -	- Overview of the Power8 transactional memory support.
> -dscr.txt
> -	- Overview DSCR (Data Stream Control Register) support.
> diff --git a/Documentation/s390/00-INDEX b/Documentation/s390/00-INDEX
> deleted file mode 100644
> index 317f037..0000000
> --- a/Documentation/s390/00-INDEX
> +++ /dev/null
> @@ -1,28 +0,0 @@
> -00-INDEX
> -	- this file.
> -3270.ChangeLog
> -	- ChangeLog for the UTS Global 3270-support patch (outdated).
> -3270.txt
> -	- how to use the IBM 3270 display system support.
> -cds.txt
> -	- s390 common device support (common I/O layer).
> -CommonIO
> -	- common I/O layer command line parameters, procfs and debugfs	entries
> -config3270.sh
> -	- example configuration for 3270 devices.
> -DASD
> -	- information on the DASD disk device driver.
> -Debugging390.txt
> -	- hints for debugging on s390 systems.
> -driver-model.txt
> -	- information on s390 devices and the driver model.
> -monreader.txt
> -	- information on accessing the z/VM monitor stream from Linux.
> -qeth.txt
> -	- HiperSockets Bridge Port Support.
> -s390dbf.txt
> -	- information on using the s390 debug feature.
> -vfio-ccw.txt
> -	  information on the vfio-ccw I/O subchannel driver.
> -zfcpdump.txt
> -	- information on the s390 SCSI dump tool.
> diff --git a/Documentation/scheduler/00-INDEX b/Documentation/scheduler/00-INDEX
> deleted file mode 100644
> index eccf7ad..0000000
> --- a/Documentation/scheduler/00-INDEX
> +++ /dev/null
> @@ -1,18 +0,0 @@
> -00-INDEX
> -	- this file.
> -sched-arch.txt
> -	- CPU Scheduler implementation hints for architecture specific code.
> -sched-bwc.txt
> -	- CFS bandwidth control overview.
> -sched-design-CFS.txt
> -	- goals, design and implementation of the Completely Fair Scheduler.
> -sched-domains.txt
> -	- information on scheduling domains.
> -sched-nice-design.txt
> -	- How and why the scheduler's nice levels are implemented.
> -sched-rt-group.txt
> -	- real-time group scheduling.
> -sched-deadline.txt
> -	- deadline scheduling.
> -sched-stats.txt
> -	- information on schedstats (Linux Scheduler Statistics).
> diff --git a/Documentation/scsi/00-INDEX b/Documentation/scsi/00-INDEX
> deleted file mode 100644
> index bb4a76f..0000000
> --- a/Documentation/scsi/00-INDEX
> +++ /dev/null
> @@ -1,108 +0,0 @@
> -00-INDEX
> -	- this file
> -53c700.txt
> -	- info on driver for 53c700 based adapters
> -BusLogic.txt
> -	- info on driver for adapters with BusLogic chips
> -ChangeLog.1992-1997
> -	- Changes to scsi files, if not listed elsewhere
> -ChangeLog.arcmsr
> -	- Changes to driver for ARECA's SATA RAID controller cards
> -ChangeLog.ips
> -	- IBM ServeRAID driver Changelog
> -ChangeLog.lpfc
> -	- Changes to lpfc driver
> -ChangeLog.megaraid
> -	- Changes to LSI megaraid controller.
> -ChangeLog.megaraid_sas
> -	- Changes to serial attached scsi version of LSI megaraid controller.
> -ChangeLog.ncr53c8xx
> -	- Changes to ncr53c8xx driver
> -ChangeLog.sym53c8xx
> -	- Changes to sym53c8xx driver
> -ChangeLog.sym53c8xx_2
> -	- Changes to second generation of sym53c8xx driver
> -FlashPoint.txt
> -	- info on driver for BusLogic FlashPoint adapters
> -LICENSE.FlashPoint
> -	- Licence of the Flashpoint driver
> -LICENSE.qla2xxx
> -	- License for QLogic Linux Fibre Channel HBA Driver firmware.
> -LICENSE.qla4xxx
> -	- License for QLogic Linux iSCSI HBA Driver.
> -Mylex.txt
> -	- info on driver for Mylex adapters
> -NinjaSCSI.txt
> -	- info on WorkBiT NinjaSCSI-32/32Bi driver
> -aacraid.txt
> -	- Driver supporting Adaptec RAID controllers
> -advansys.txt
> -	- List of Advansys Host Adapters
> -aha152x.txt
> -	- info on driver for Adaptec AHA152x based adapters
> -aic79xx.txt
> -	- Adaptec Ultra320 SCSI host adapters
> -aic7xxx.txt
> -	- info on driver for Adaptec controllers
> -arcmsr_spec.txt
> -	- ARECA FIRMWARE SPEC (for IOP331 adapter)
> -bfa.txt
> -	- Brocade FC/FCOE adapter driver.
> -bnx2fc.txt
> -	- FCoE hardware offload for Broadcom network interfaces.
> -cxgb3i.txt
> -	- Chelsio iSCSI Linux Driver
> -dc395x.txt
> -	- README file for the dc395x SCSI driver
> -dpti.txt
> -	- info on driver for DPT SmartRAID and Adaptec I2O RAID based adapters
> -dtc3x80.txt
> -	- info on driver for DTC 2x80 based adapters
> -g_NCR5380.txt
> -	- info on driver for NCR5380 and NCR53c400 based adapters
> -hpsa.txt
> -	- HP Smart Array Controller SCSI driver.
> -hptiop.txt
> -	- HIGHPOINT ROCKETRAID 3xxx RAID DRIVER
> -libsas.txt
> -	- Serial Attached SCSI management layer.
> -link_power_management_policy.txt
> -	- Link power management options.
> -lpfc.txt
> -	- LPFC driver release notes
> -megaraid.txt
> -	- Common Management Module, shared code handling ioctls for LSI drivers
> -ncr53c8xx.txt
> -	- info on driver for NCR53c8xx based adapters
> -osd.txt
> -	Object-Based Storage Device, command set introduction.
> -osst.txt
> -	- info on driver for OnStream SC-x0 SCSI tape
> -ppa.txt
> -	- info on driver for IOmega zip drive
> -qlogicfas.txt
> -	- info on driver for QLogic FASxxx based adapters
> -scsi-changer.txt
> -	- README for the SCSI media changer driver
> -scsi-generic.txt
> -	- info on the sg driver for generic (non-disk/CD/tape) SCSI devices.
> -scsi-parameters.txt
> -	- List of SCSI-parameters to pass to the kernel at module load-time.
> -scsi.txt
> -	- short blurb on using SCSI support as a module.
> -scsi_mid_low_api.txt
> -	- info on API between SCSI layer and low level drivers
> -scsi_eh.txt
> -	- info on SCSI midlayer error handling infrastructure
> -scsi_fc_transport.txt
> -	- SCSI Fiber Channel Tansport
> -st.txt
> -	- info on scsi tape driver
> -sym53c500_cs.txt
> -	- info on PCMCIA driver for Symbios Logic 53c500 based adapters
> -sym53c8xx_2.txt
> -	- info on second generation driver for sym53c8xx based adapters
> -tmscsim.txt
> -	- info on driver for AM53c974 based adapters
> -ufs.txt
> -	- info on Universal Flash Storage(UFS) and UFS host controller driver.
> diff --git a/Documentation/serial/00-INDEX b/Documentation/serial/00-INDEX
> deleted file mode 100644
> index 8021a9f..0000000
> --- a/Documentation/serial/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- this file.
> -README.cycladesZ
> -	- info on Cyclades-Z firmware loading.
> -driver
> -	- intro to the low level serial driver.
> -moxa-smartio
> -	- file with info on installing/using Moxa multiport serial driver.
> -n_gsm.txt
> -	- GSM 0710 tty multiplexer howto.
> -rocket.txt
> -	- info on the Comtrol RocketPort multiport serial driver.
> -serial-rs485.txt
> -	- info about RS485 structures and support in the kernel.
> -tty.txt
> -	- guide to the locking policies of the tty layer.
> diff --git a/Documentation/spi/00-INDEX b/Documentation/spi/00-INDEX
> deleted file mode 100644
> index 8e4bb17..0000000
> --- a/Documentation/spi/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- this file.
> -butterfly
> -	- AVR Butterfly SPI driver overview and pin configuration.
> -ep93xx_spi
> -	- Basic EP93xx SPI driver configuration.
> -pxa2xx
> -	- PXA2xx SPI master controller build by spi_message fifo wq
> -spidev
> -	- Intro to the userspace API for spi devices
> -spi-lm70llp
> -	- Connecting an LM70-LLP sensor to the kernel via the SPI subsys.
> -spi-sc18is602
> -	- NXP SC18IS602/603 I2C-bus to SPI bridge
> -spi-summary
> -	- (Linux) SPI overview. If unsure about SPI or SPI in Linux, start here.
> diff --git a/Documentation/sysctl/00-INDEX b/Documentation/sysctl/00-INDEX
> deleted file mode 100644
> index 8cf5d49..0000000
> --- a/Documentation/sysctl/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- this file.
> -README
> -	- general information about /proc/sys/ sysctl files.
> -abi.txt
> -	- documentation for /proc/sys/abi/*.
> -fs.txt
> -	- documentation for /proc/sys/fs/*.
> -kernel.txt
> -	- documentation for /proc/sys/kernel/*.
> -net.txt
> -	- documentation for /proc/sys/net/*.
> -sunrpc.txt
> -	- documentation for /proc/sys/sunrpc/*.
> -vm.txt
> -	- documentation for /proc/sys/vm/*.
> diff --git a/Documentation/timers/00-INDEX b/Documentation/timers/00-INDEX
> deleted file mode 100644
> index 3be05fe..0000000
> --- a/Documentation/timers/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- this file
> -highres.txt
> -	- High resolution timers and dynamic ticks design notes
> -hpet.txt
> -	- High Precision Event Timer Driver for Linux
> -hrtimers.txt
> -	- subsystem for high-resolution kernel timers
> -NO_HZ.txt
> -	- Summary of the different methods for the scheduler clock-interrupts management.
> -timekeeping.txt
> -	- Clock sources, clock events, sched_clock() and delay timer notes
> -timers-howto.txt
> -	- how to insert delays in the kernel the right (tm) way.
> -timer_stats.txt
> -	- timer usage statistics
> diff --git a/Documentation/virtual/00-INDEX b/Documentation/virtual/00-INDEX
> deleted file mode 100644
> index af0d239..0000000
> --- a/Documentation/virtual/00-INDEX
> +++ /dev/null
> @@ -1,11 +0,0 @@
> -Virtualization support in the Linux kernel.
> -
> -00-INDEX
> -	- this file.
> -
> -paravirt_ops.txt
> -	- Describes the Linux kernel pv_ops to support different hypervisors
> -kvm/
> -	- Kernel Virtual Machine.  See also http://linux-kvm.org
> -uml/
> -	- User Mode Linux, builds/runs Linux kernel as a userspace program.
> diff --git a/Documentation/virtual/kvm/00-INDEX b/Documentation/virtual/kvm/00-INDEX
> deleted file mode 100644
> index 3492458..0000000
> --- a/Documentation/virtual/kvm/00-INDEX
> +++ /dev/null
> @@ -1,35 +0,0 @@
> -00-INDEX
> -	- this file.
> -amd-memory-encryption.rst
> -	- notes on AMD Secure Encrypted Virtualization feature and SEV firmware
> -	  command description
> -api.txt
> -	- KVM userspace API.
> -arm
> -	- internal ABI between the kernel and HYP (for arm/arm64)
> -cpuid.txt
> -	- KVM-specific cpuid leaves (x86).
> -devices/
> -	- KVM_CAP_DEVICE_CTRL userspace API.
> -halt-polling.txt
> -	- notes on halt-polling
> -hypercalls.txt
> -	- KVM hypercalls.
> -locking.txt
> -	- notes on KVM locks.
> -mmu.txt
> -	- the x86 kvm shadow mmu.
> -msr.txt
> -	- KVM-specific MSRs (x86).
> -nested-vmx.txt
> -	- notes on nested virtualization for Intel x86 processors.
> -ppc-pv.txt
> -	- the paravirtualization interface on PowerPC.
> -review-checklist.txt
> -	- review checklist for KVM patches.
> -s390-diag.txt
> -	- Diagnose hypercall description (for IBM S/390)
> -timekeeping.txt
> -	- timekeeping virtualization for x86-based architectures.
> -vcpu-requests.rst
> -	- internal VCPU request API
> diff --git a/Documentation/vm/00-INDEX b/Documentation/vm/00-INDEX
> deleted file mode 100644
> index f4a4f3e..0000000
> --- a/Documentation/vm/00-INDEX
> +++ /dev/null
> @@ -1,50 +0,0 @@
> -00-INDEX
> -	- this file.
> -active_mm.rst
> -	- An explanation from Linus about tsk->active_mm vs tsk->mm.
> -balance.rst
> -	- various information on memory balancing.
> -cleancache.rst
> -	- Intro to cleancache and page-granularity victim cache.
> -frontswap.rst
> -	- Outline frontswap, part of the transcendent memory frontend.
> -highmem.rst
> -	- Outline of highmem and common issues.
> -hmm.rst
> -	- Documentation of heterogeneous memory management
> -hugetlbfs_reserv.rst
> -	- A brief overview of hugetlbfs reservation design/implementation.
> -hwpoison.rst
> -	- explains what hwpoison is
> -ksm.rst
> -	- how to use the Kernel Samepage Merging feature.
> -mmu_notifier.rst
> -	- a note about clearing pte/pmd and mmu notifications
> -numa.rst
> -	- information about NUMA specific code in the Linux vm.
> -overcommit-accounting.rst
> -	- description of the Linux kernels overcommit handling modes.
> -page_frags.rst
> -	- description of page fragments allocator
> -page_migration.rst
> -	- description of page migration in NUMA systems.
> -page_owner.rst
> -	- tracking about who allocated each page
> -remap_file_pages.rst
> -	- a note about remap_file_pages() system call
> -slub.rst
> -	- a short users guide for SLUB.
> -split_page_table_lock.rst
> -	- Separate per-table lock to improve scalability of the old page_table_lock.
> -swap_numa.rst
> -	- automatic binding of swap device to numa node
> -transhuge.rst
> -	- Transparent Hugepage Support, alternative way of using hugepages.
> -unevictable-lru.rst
> -	- Unevictable LRU infrastructure
> -z3fold.txt
> -	- outline of z3fold allocator for storing compressed pages
> -zsmalloc.rst
> -	- outline of zsmalloc allocator for storing compressed pages
> -zswap.rst
> -	- Intro to compressed cache for swap pages
> diff --git a/Documentation/w1/00-INDEX b/Documentation/w1/00-INDEX
> deleted file mode 100644
> index cb49802..0000000
> --- a/Documentation/w1/00-INDEX
> +++ /dev/null
> @@ -1,10 +0,0 @@
> -00-INDEX
> -	- This file
> -slaves/
> -	- Drivers that provide support for specific family codes.
> -masters/
> -	- Individual chips providing 1-wire busses.
> -w1.generic
> -	- The 1-wire (w1) bus
> -w1.netlink
> -	- Userspace communication protocol over connector [1].
> diff --git a/Documentation/w1/masters/00-INDEX b/Documentation/w1/masters/00-INDEX
> deleted file mode 100644
> index 8330cf9..0000000
> --- a/Documentation/w1/masters/00-INDEX
> +++ /dev/null
> @@ -1,12 +0,0 @@
> -00-INDEX
> -	- This file
> -ds2482
> -	- The Maxim/Dallas Semiconductor DS2482 provides 1-wire busses.
> -ds2490
> -	- The Maxim/Dallas Semiconductor DS2490 builds USB <-> W1 bridges.
> -mxc-w1
> -	- W1 master controller driver found on Freescale MX2/MX3 SoCs
> -omap-hdq
> -	- HDQ/1-wire module of TI OMAP 2430/3430.
> -w1-gpio
> -	- GPIO 1-wire bus master driver.
> diff --git a/Documentation/w1/slaves/00-INDEX b/Documentation/w1/slaves/00-INDEX
> deleted file mode 100644
> index 68946f8..0000000
> --- a/Documentation/w1/slaves/00-INDEX
> +++ /dev/null
> @@ -1,14 +0,0 @@
> -00-INDEX
> -	- This file
> -w1_therm
> -	- The Maxim/Dallas Semiconductor ds18*20 temperature sensor.
> -w1_ds2413
> -	- The Maxim/Dallas Semiconductor ds2413 dual channel addressable switch.
> -w1_ds2423
> -	- The Maxim/Dallas Semiconductor ds2423 counter device.
> -w1_ds2438
> -	- The Maxim/Dallas Semiconductor ds2438 smart battery monitor.
> -w1_ds28e04
> -	- The Maxim/Dallas Semiconductor ds28e04 eeprom.
> -w1_ds28e17
> -	- The Maxim/Dallas Semiconductor ds28e17 1-Wire-to-I2C Master Bridge.
> diff --git a/Documentation/x86/00-INDEX b/Documentation/x86/00-INDEX
> deleted file mode 100644
> index 3bb2ee3..0000000
> --- a/Documentation/x86/00-INDEX
> +++ /dev/null
> @@ -1,20 +0,0 @@
> -00-INDEX
> -	- this file
> -boot.txt
> -	- List of boot protocol versions
> -earlyprintk.txt
> -	- Using earlyprintk with a USB2 debug port key.
> -entry_64.txt
> -	- Describe (some of the) kernel entry points for x86.
> -exception-tables.txt
> -	- why and how Linux kernel uses exception tables on x86
> -microcode.txt
> -	- How to load microcode from an initrd-CPIO archive early to fix CPU issues.
> -mtrr.txt
> -	- how to use x86 Memory Type Range Registers to increase performance
> -pat.txt
> -	- Page Attribute Table intro and API
> -usb-legacy-support.txt
> -	- how to fix/avoid quirks when using emulated PS/2 mouse/keyboard.
> -zero-page.txt
> -	- layout of the first page of memory.
> diff --git a/Documentation/x86/x86_64/00-INDEX b/Documentation/x86/x86_64/00-INDEX
> deleted file mode 100644
> index 92fc20a..0000000
> --- a/Documentation/x86/x86_64/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- This file
> -boot-options.txt
> -	- AMD64-specific boot options.
> -cpu-hotplug-spec
> -	- Firmware support for CPU hotplug under Linux/x86-64
> -fake-numa-for-cpusets
> -	- Using numa=fake and CPUSets for Resource Management
> -kernel-stacks
> -	- Context-specific per-processor interrupt stacks.
> -machinecheck
> -	- Configurable sysfs parameters for the x86-64 machine check code.
> -mm.txt
> -	- Memory layout of x86-64 (4 level page tables, 46 bits physical).
> -uefi.txt
> -	- Booting Linux via Unified Extensible Firmware Interface.
> diff --git a/README b/README
> index 2c927cc..669ac7c 100644
> --- a/README
> +++ b/README
> @@ -12,7 +12,6 @@ In order to build the documentation, use ``make htmldocs`` or
> 
>  There are various text files in the Documentation/ subdirectory,
>  several of them using the Restructured Text markup notation.
> -See Documentation/00-INDEX for a list of what is contained in each file.
> 
>  Please read the Documentation/process/changes.rst file, as it contains the
>  requirements for building and running the kernel, and information about
> diff --git a/scripts/check_00index.sh b/scripts/check_00index.sh
> deleted file mode 100755
> index aa47f592..0000000
> --- a/scripts/check_00index.sh
> +++ /dev/null
> @@ -1,67 +0,0 @@
> -#!/bin/bash
> -# SPDX-License-Identifier: GPL-2.0
> -
> -cd Documentation/
> -
> -# Check entries that should be removed
> -
> -obsolete=""
> -for i in $(tail -n +12 00-INDEX |grep -E '^[a-zA-Z0-9]+'); do
> -	if [ ! -e $i ]; then
> -		obsolete="$obsolete $i"
> -	fi
> -done
> -
> -# Check directory entries that should be added
> -search=""
> -dir=""
> -for i in $(find . -maxdepth 1 -type d); do
> -	if [ "$i" != "." ]; then
> -		new=$(echo $i|perl -ne 's,./(.*),$1/,; print $_')
> -		search="$search $new"
> -	fi
> -done
> -
> -for i in $search; do
> -	if [ "$(grep -P "^$i" 00-INDEX)" == "" ]; then
> -		dir="$dir $i"
> -	fi
> -done
> -
> -# Check file entries that should be added
> -search=""
> -file=""
> -for i in $(find . -maxdepth 1 -type f); do
> -	if [ "$i" != "./.gitignore" ]; then
> -		new=$(echo $i|perl -ne 's,./(.*),$1,; print $_')
> -		search="$search $new"
> -	fi
> -done
> -
> -for i in $search; do
> -	if [ "$(grep -P "^$i\$" 00-INDEX)" == "" ]; then
> -		file="$file $i"
> -	fi
> -done
> -
> -# Output its findings
> -
> -echo -e "Documentation/00-INDEX check results:\n"
> -
> -if [ "$obsolete" != "" ]; then
> -	echo -e "- Should remove those entries:\n\t$obsolete\n"
> -else
> -	echo -e "- No obsolete entries\n"
> -fi
> -
> -if [ "$dir" != "" ]; then
> -	echo -e "- Should document those directories:\n\t$dir\n"
> -else
> -	echo -e "- No new directories to add\n"
> -fi
> -
> -if [ "$file" != "" ]; then
> -	echo -e "- Should document those files:\n\t$file"
> -else
> -	echo "- No new files to add"
> -fi
> -- 
> 2.7.4
> 



From - Thu Nov 08 21:41:54 2018
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From: Steven Rostedt <rostedt@goodmis.org>
Newsgroups: gmane.comp.video.dri.devel,gmane.linux.ports.mips.general,gmane.comp.emulators.kvm.devel,gmane.linux.documentation,gmane.linux.kernel.lsm,gmane.linux.kernel.gpio,gmane.linux.kbuild.devel,gmane.linux.ports.parisc,gmane.linux.ide,gmane.linux.kernel.pci,gmane.linux.power-management.general,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.linux.network,gmane.linux.ports.ppc64.devel,gmane.linux.drivers.devicetree
Subject: Re: [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
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From: Jens Axboe <axboe@kernel.dk>
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Subject: Re: [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
Date: Tue, 4 Sep 2018 09:45:47 -0600
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Approved: news@gmane.org
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References: <1536012923-16275-1-git-send-email-henrik@austad.us>
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Cc: Mark Rutland <mark.rutland@arm.com>, linux-mips@linux-mips.org,
 linux-fbdev@vger.kernel.org, Jan Kandziora <jjj@gmx.de>, kvm@vger.kernel.org,
 =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= <rkrcmar@redhat.com>,
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 Paul Mackerras <paulus@samba.org>, Henrik Austad <haustad@cisco.com>,
 Pavel Machek <pavel@ucw.cz>, "H. Peter Anvin" <hpa@zytor.com>,
 Evgeniy Polyakov <zbr@ioremap.net>, linux-s390@vger.kernel.org,
 Ian Kent <raven@themaw.net>, linux-security-module@vger.kernel.org,
 Paul Moore <paul@paul-moore.com>, Jonathan Corbet <corbet@lwn.net>,
 Helge Deller <deller@gmx.de>, x86@kernel.org,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
To: Henrik Austad <henrik@austad.us>, linux-doc@vger.kernel.org
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On 9/3/18 4:15 PM, Henrik Austad wrote:
> This is a respin with a wider audience (all that get_maintainer returned)
> and I know this spams a *lot* of people. Not sure what would be the correct
> way, so my apologies for ruining your inbox.
> 
> The 00-INDEX files are supposed to give a summary of all files present
> in a directory, but these files are horribly out of date and their
> usefulness is brought into question. Often a simple "ls" would reveal
> the same information as the filenames are generally quite descriptive as
> a short introduction to what the file covers (it should not surprise
> anyone what Documentation/sched/sched-design-CFS.txt covers)
> 
> A few years back it was mentioned that these files were no longer really
> needed, and they have since then grown further out of date, so perhaps
> it is time to just throw them out.
> 
> A short status yields the following _outdated_ 00-INDEX files, first
> counter is files listed in 00-INDEX but missing in the directory, last
> is files present but not listed in 00-INDEX.

For the block related bits:

Reviewed-by: Jens Axboe <axboe@kernel.dk>

-- 
Jens Axboe



From - Thu Nov 08 21:41:54 2018
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Subject: Re: [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
Date: Tue, 4 Sep 2018 20:56:22 +0300
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Cc: Mark Rutland <mark.rutland@arm.com>, linux-mips@linux-mips.org,
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 linux-doc@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
 James Hogan <jhogan@kernel.org>, Linus Walleij <linus.walleij@linaro.org>,
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 Masahiro Yamada <yamada.masahiro@socionext.com>, Jan Kandziora <jjj@gmx.de>,
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 Pavel Machek <pavel@ucw.cz>, "H. Peter Anvin" <hpa@zytor.com>,
 Evgeniy Polyakov <zbr@ioremap.net>, linux-s390@vger.kernel.org,
 Ian Kent <raven@themaw.net>, linux-security-module@vger.kernel.org,
 Paul Moore <paul@paul-moore.com>, Jonathan Corbet <corbet@lwn.net>,
 Helge Deller <deller@gmx.de>,
 Radim =?utf-8?B?S3LEjW3DocWZ?= <rkrcmar@redhat.com>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>, Ing
To: Henrik Austad <henrik@austad.us>
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On Tue, Sep 04, 2018 at 12:15:23AM +0200, Henrik Austad wrote:
> This is a respin with a wider audience (all that get_maintainer returned)
> and I know this spams a *lot* of people. Not sure what would be the correct
> way, so my apologies for ruining your inbox.
> 
> The 00-INDEX files are supposed to give a summary of all files present
> in a directory, but these files are horribly out of date and their
> usefulness is brought into question. Often a simple "ls" would reveal
> the same information as the filenames are generally quite descriptive as
> a short introduction to what the file covers (it should not surprise
> anyone what Documentation/sched/sched-design-CFS.txt covers)
> 
> A few years back it was mentioned that these files were no longer really
> needed, and they have since then grown further out of date, so perhaps
> it is time to just throw them out.
> 
> A short status yields the following _outdated_ 00-INDEX files, first
> counter is files listed in 00-INDEX but missing in the directory, last
> is files present but not listed in 00-INDEX.
> 
> List of outdated 00-INDEX:
> Documentation: (4/10)
> Documentation/sysctl: (0/1)
> Documentation/timers: (1/0)
> Documentation/blockdev: (3/1)
> Documentation/w1/slaves: (0/1)
> Documentation/locking: (0/1)
> Documentation/devicetree: (0/5)
> Documentation/power: (1/1)
> Documentation/powerpc: (0/5)
> Documentation/arm: (1/0)
> Documentation/x86: (0/9)
> Documentation/x86/x86_64: (1/1)
> Documentation/scsi: (4/4)
> Documentation/filesystems: (2/9)
> Documentation/filesystems/nfs: (0/2)
> Documentation/cgroup-v1: (0/2)
> Documentation/kbuild: (0/4)
> Documentation/spi: (1/0)
> Documentation/virtual/kvm: (1/0)
> Documentation/scheduler: (0/2)
> Documentation/fb: (0/1)
> Documentation/block: (0/1)
> Documentation/networking: (6/37)
> Documentation/vm: (1/3)
> 
> Then there are 364 subdirectories in Documentation/ with several files that
> are missing 00-INDEX alltogether (and another 120 with a single file and no
> 00-INDEX).
> 
> I don't really have an opinion to whether or not we /should/ have 00-INDEX,
> but the above 00-INDEX should either be removed or be kept up to date. If
> we should keep the files, I can try to keep them updated, but I rather not
> if we just want to delete them anyway.
> 
> As a starting point, remove all index-files and references to 00-INDEX and
> see where the discussion is going.

For the Documentation/vm

Acked-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
 
> Again, sorry for the insanely wide distribution.
> 
> Signed-off-by: Henrik Austad <henrik@austad.us>
> Cc: Jonathan Corbet <corbet@lwn.net>
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
> Cc: Josh Triplett <josh@joshtriplett.org>
> Cc: Steven Rostedt <rostedt@goodmis.org>
> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> Cc: Lai Jiangshan <jiangshanlai@gmail.com>
> Cc: Jens Axboe <axboe@kernel.dk>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Karsten Keil <isdn@linux-pingi.de>
> Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
> Cc: Michal Marek <michal.lkml@markovi.net>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Will Deacon <will.deacon@arm.com>
> Cc: Ralf Baechle <ralf@linux-mips.org>
> Cc: Paul Burton <paul.burton@mips.com>
> Cc: James Hogan <jhogan@kernel.org>
> Cc: Paul Moore <paul@paul-moore.com>
> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
> Cc: Helge Deller <deller@gmx.de>
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Cc: Len Brown <len.brown@intel.com>
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Jiri Slaby <jslaby@suse.com>
> Cc: Mark Brown <broonie@kernel.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Paolo Bonzini <pbonzini@redhat.com>
> Cc: "Radim Krčmář" <rkrcmar@redhat.com>
> Cc: Evgeniy Polyakov <zbr@ioremap.net>
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: x86@kernel.org
> Cc: Henrik Austad <henrik@austad.us>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Ian Kent <raven@themaw.net>
> Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
> Cc: Jan Kandziora <jjj@gmx.de>
> Cc: linux-doc@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> Cc: devicetree@vger.kernel.org
> Cc: dri-devel@lists.freedesktop.org
> Cc: linux-fbdev@vger.kernel.org
> Cc: linux-gpio@vger.kernel.org
> Cc: linux-ide@vger.kernel.org
> Cc: netdev@vger.kernel.org
> Cc: linux-kbuild@vger.kernel.org
> Cc: linux-mips@linux-mips.org
> Cc: linux-security-module@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-pm@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: linux-s390@vger.kernel.org
> Cc: linux-spi@vger.kernel.org
> Cc: kvm@vger.kernel.org
> Signed-off-by: Henrik Austad <haustad@cisco.com>
> ---
>  Documentation/00-INDEX                  | 428 --------------------------------
>  Documentation/PCI/00-INDEX              |  26 --
>  Documentation/RCU/00-INDEX              |  34 ---
>  Documentation/RCU/rcu.txt               |   4 -
>  Documentation/admin-guide/README.rst    |   3 +-
>  Documentation/arm/00-INDEX              |  50 ----
>  Documentation/block/00-INDEX            |  34 ---
>  Documentation/blockdev/00-INDEX         |  18 --
>  Documentation/cdrom/00-INDEX            |  11 -
>  Documentation/cgroup-v1/00-INDEX        |  26 --
>  Documentation/devicetree/00-INDEX       |  12 -
>  Documentation/fb/00-INDEX               |  75 ------
>  Documentation/filesystems/00-INDEX      | 153 ------------
>  Documentation/filesystems/nfs/00-INDEX  |  26 --
>  Documentation/fmc/00-INDEX              |  38 ---
>  Documentation/gpio/00-INDEX             |   4 -
>  Documentation/ide/00-INDEX              |  14 --
>  Documentation/ioctl/00-INDEX            |  12 -
>  Documentation/isdn/00-INDEX             |  42 ----
>  Documentation/kbuild/00-INDEX           |  14 --
>  Documentation/laptops/00-INDEX          |  16 --
>  Documentation/leds/00-INDEX             |  32 ---
>  Documentation/locking/00-INDEX          |  16 --
>  Documentation/m68k/00-INDEX             |   7 -
>  Documentation/mips/00-INDEX             |   4 -
>  Documentation/mmc/00-INDEX              |  10 -
>  Documentation/netlabel/00-INDEX         |  10 -
>  Documentation/netlabel/cipso_ipv4.txt   |  11 +-
>  Documentation/netlabel/introduction.txt |   2 +-
>  Documentation/networking/00-INDEX       | 234 -----------------
>  Documentation/parisc/00-INDEX           |   6 -
>  Documentation/power/00-INDEX            |  44 ----
>  Documentation/powerpc/00-INDEX          |  34 ---
>  Documentation/s390/00-INDEX             |  28 ---
>  Documentation/scheduler/00-INDEX        |  18 --
>  Documentation/scsi/00-INDEX             | 108 --------
>  Documentation/serial/00-INDEX           |  16 --
>  Documentation/spi/00-INDEX              |  16 --
>  Documentation/sysctl/00-INDEX           |  16 --
>  Documentation/timers/00-INDEX           |  16 --
>  Documentation/virtual/00-INDEX          |  11 -
>  Documentation/virtual/kvm/00-INDEX      |  35 ---
>  Documentation/vm/00-INDEX               |  50 ----
>  Documentation/w1/00-INDEX               |  10 -
>  Documentation/w1/masters/00-INDEX       |  12 -
>  Documentation/w1/slaves/00-INDEX        |  14 --
>  Documentation/x86/00-INDEX              |  20 --
>  Documentation/x86/x86_64/00-INDEX       |  16 --
>  README                                  |   1 -
>  scripts/check_00index.sh                |  67 -----
>  50 files changed, 8 insertions(+), 1896 deletions(-)
>  delete mode 100644 Documentation/00-INDEX
>  delete mode 100644 Documentation/PCI/00-INDEX
>  delete mode 100644 Documentation/RCU/00-INDEX
>  delete mode 100644 Documentation/arm/00-INDEX
>  delete mode 100644 Documentation/block/00-INDEX
>  delete mode 100644 Documentation/blockdev/00-INDEX
>  delete mode 100644 Documentation/cdrom/00-INDEX
>  delete mode 100644 Documentation/cgroup-v1/00-INDEX
>  delete mode 100644 Documentation/devicetree/00-INDEX
>  delete mode 100644 Documentation/fb/00-INDEX
>  delete mode 100644 Documentation/filesystems/00-INDEX
>  delete mode 100644 Documentation/filesystems/nfs/00-INDEX
>  delete mode 100644 Documentation/fmc/00-INDEX
>  delete mode 100644 Documentation/gpio/00-INDEX
>  delete mode 100644 Documentation/ide/00-INDEX
>  delete mode 100644 Documentation/ioctl/00-INDEX
>  delete mode 100644 Documentation/isdn/00-INDEX
>  delete mode 100644 Documentation/kbuild/00-INDEX
>  delete mode 100644 Documentation/laptops/00-INDEX
>  delete mode 100644 Documentation/leds/00-INDEX
>  delete mode 100644 Documentation/locking/00-INDEX
>  delete mode 100644 Documentation/m68k/00-INDEX
>  delete mode 100644 Documentation/mips/00-INDEX
>  delete mode 100644 Documentation/mmc/00-INDEX
>  delete mode 100644 Documentation/netlabel/00-INDEX
>  delete mode 100644 Documentation/networking/00-INDEX
>  delete mode 100644 Documentation/parisc/00-INDEX
>  delete mode 100644 Documentation/power/00-INDEX
>  delete mode 100644 Documentation/powerpc/00-INDEX
>  delete mode 100644 Documentation/s390/00-INDEX
>  delete mode 100644 Documentation/scheduler/00-INDEX
>  delete mode 100644 Documentation/scsi/00-INDEX
>  delete mode 100644 Documentation/serial/00-INDEX
>  delete mode 100644 Documentation/spi/00-INDEX
>  delete mode 100644 Documentation/sysctl/00-INDEX
>  delete mode 100644 Documentation/timers/00-INDEX
>  delete mode 100644 Documentation/virtual/00-INDEX
>  delete mode 100644 Documentation/virtual/kvm/00-INDEX
>  delete mode 100644 Documentation/vm/00-INDEX
>  delete mode 100644 Documentation/w1/00-INDEX
>  delete mode 100644 Documentation/w1/masters/00-INDEX
>  delete mode 100644 Documentation/w1/slaves/00-INDEX
>  delete mode 100644 Documentation/x86/00-INDEX
>  delete mode 100644 Documentation/x86/x86_64/00-INDEX
>  delete mode 100755 scripts/check_00index.sh
> 
> diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX
> deleted file mode 100644
> index 2754fe8..0000000
> --- a/Documentation/00-INDEX
> +++ /dev/null
> @@ -1,428 +0,0 @@
> -
> -This is a brief list of all the files in ./linux/Documentation and what
> -they contain. If you add a documentation file, please list it here in
> -alphabetical order as well, or risk being hunted down like a rabid dog.
> -Please keep the descriptions small enough to fit on one line.
> -							 Thanks -- Paul G.
> -
> -Following translations are available on the WWW:
> -
> -   - Japanese, maintained by the JF Project (jf@listserv.linux.or.jp), at
> -     http://linuxjf.sourceforge.jp/
> -
> -00-INDEX
> -	- this file.
> -ABI/
> -	- info on kernel <-> userspace ABI and relative interface stability.
> -CodingStyle
> -	- nothing here, just a pointer to process/coding-style.rst.
> -DMA-API.txt
> -	- DMA API, pci_ API & extensions for non-consistent memory machines.
> -DMA-API-HOWTO.txt
> -	- Dynamic DMA mapping Guide
> -DMA-ISA-LPC.txt
> -	- How to do DMA with ISA (and LPC) devices.
> -DMA-attributes.txt
> -	- listing of the various possible attributes a DMA region can have
> -EDID/
> -	- directory with info on customizing EDID for broken gfx/displays.
> -IPMI.txt
> -	- info on Linux Intelligent Platform Management Interface (IPMI) Driver.
> -IRQ-affinity.txt
> -	- how to select which CPU(s) handle which interrupt events on SMP.
> -IRQ-domain.txt
> -	- info on interrupt numbering and setting up IRQ domains.
> -IRQ.txt
> -	- description of what an IRQ is.
> -Intel-IOMMU.txt
> -	- basic info on the Intel IOMMU virtualization support.
> -Makefile
> -	- It's not of interest for those who aren't touching the build system.
> -PCI/
> -	- info related to PCI drivers.
> -RCU/
> -	- directory with info on RCU (read-copy update).
> -SAK.txt
> -	- info on Secure Attention Keys.
> -SM501.txt
> -	- Silicon Motion SM501 multimedia companion chip
> -SubmittingPatches
> -	- nothing here, just a pointer to process/coding-style.rst.
> -accounting/
> -	- documentation on accounting and taskstats.
> -acpi/
> -	- info on ACPI-specific hooks in the kernel.
> -admin-guide/
> -	- info related to Linux users and system admins.
> -aoe/
> -	- description of AoE (ATA over Ethernet) along with config examples.
> -arm/
> -	- directory with info about Linux on the ARM architecture.
> -arm64/
> -	- directory with info about Linux on the 64 bit ARM architecture.
> -auxdisplay/
> -	- misc. LCD driver documentation (cfag12864b, ks0108).
> -backlight/
> -	- directory with info on controlling backlights in flat panel displays
> -block/
> -	- info on the Block I/O (BIO) layer.
> -blockdev/
> -	- info on block devices & drivers
> -bt8xxgpio.txt
> -	- info on how to modify a bt8xx video card for GPIO usage.
> -btmrvl.txt
> -	- info on Marvell Bluetooth driver usage.
> -bus-devices/
> -	- directory with info on TI GPMC (General Purpose Memory Controller)
> -bus-virt-phys-mapping.txt
> -	- how to access I/O mapped memory from within device drivers.
> -cdrom/
> -	- directory with information on the CD-ROM drivers that Linux has.
> -cgroup-v1/
> -	- cgroups v1 features, including cpusets and memory controller.
> -cma/
> -	- Continuous Memory Area (CMA) debugfs interface.
> -conf.py
> -	- It's not of interest for those who aren't touching the build system.
> -connector/
> -	- docs on the netlink based userspace<->kernel space communication mod.
> -console/
> -	- documentation on Linux console drivers.
> -core-api/
> -	- documentation on kernel core components.
> -cpu-freq/
> -	- info on CPU frequency and voltage scaling.
> -cpu-hotplug.txt
> -	- document describing CPU hotplug support in the Linux kernel.
> -cpu-load.txt
> -	- document describing how CPU load statistics are collected.
> -cpuidle/
> -	- info on CPU_IDLE, CPU idle state management subsystem.
> -cputopology.txt
> -	- documentation on how CPU topology info is exported via sysfs.
> -crc32.txt
> -	- brief tutorial on CRC computation
> -crypto/
> -	- directory with info on the Crypto API.
> -dcdbas.txt
> -	- information on the Dell Systems Management Base Driver.
> -debugging-modules.txt
> -	- some notes on debugging modules after Linux 2.6.3.
> -debugging-via-ohci1394.txt
> -	- how to use firewire like a hardware debugger memory reader.
> -dell_rbu.txt
> -	- document demonstrating the use of the Dell Remote BIOS Update driver.
> -dev-tools/
> -	- directory with info on development tools for the kernel.
> -device-mapper/
> -	- directory with info on Device Mapper.
> -dmaengine/
> -	- the DMA engine and controller API guides.
> -devicetree/
> -	- directory with info on device tree files used by OF/PowerPC/ARM
> -digsig.txt
> -	-info on the Digital Signature Verification API
> -dma-buf-sharing.txt
> -	- the DMA Buffer Sharing API Guide
> -docutils.conf
> -	- nothing here. Just a configuration file for docutils.
> -dontdiff
> -	- file containing a list of files that should never be diff'ed.
> -driver-api/
> -	- the Linux driver implementer's API guide.
> -driver-model/
> -	- directory with info about Linux driver model.
> -early-userspace/
> -	- info about initramfs, klibc, and userspace early during boot.
> -efi-stub.txt
> -	- How to use the EFI boot stub to bypass GRUB or elilo on EFI systems.
> -eisa.txt
> -	- info on EISA bus support.
> -extcon/
> -	- directory with porting guide for Android kernel switch driver.
> -isa.txt
> -	- info on EISA bus support.
> -fault-injection/
> -	- dir with docs about the fault injection capabilities infrastructure.
> -fb/
> -	- directory with info on the frame buffer graphics abstraction layer.
> -features/
> -	- status of feature implementation on different architectures.
> -filesystems/
> -	- info on the vfs and the various filesystems that Linux supports.
> -firmware_class/
> -	- request_firmware() hotplug interface info.
> -flexible-arrays.txt
> -	- how to make use of flexible sized arrays in linux
> -fmc/
> -	- information about the FMC bus abstraction
> -fpga/
> -	- FPGA Manager Core.
> -futex-requeue-pi.txt
> -	- info on requeueing of tasks from a non-PI futex to a PI futex
> -gcc-plugins.txt
> -	- GCC plugin infrastructure.
> -gpio/
> -	- gpio related documentation
> -gpu/
> -	- directory with information on GPU driver developer's guide.
> -hid/
> -	- directory with information on human interface devices
> -highuid.txt
> -	- notes on the change from 16 bit to 32 bit user/group IDs.
> -hwspinlock.txt
> -	- hardware spinlock provides hardware assistance for synchronization
> -timers/
> -	- info on the timer related topics
> -hw_random.txt
> -	- info on Linux support for random number generator in i8xx chipsets.
> -hwmon/
> -	- directory with docs on various hardware monitoring drivers.
> -i2c/
> -	- directory with info about the I2C bus/protocol (2 wire, kHz speed).
> -x86/i386/
> -	- directory with info about Linux on Intel 32 bit architecture.
> -ia64/
> -	- directory with info about Linux on Intel 64 bit architecture.
> -ide/
> -	- Information regarding the Enhanced IDE drive.
> -iio/
> -	- info on industrial IIO configfs support.
> -index.rst
> -	- main index for the documentation at ReST format.
> -infiniband/
> -	- directory with documents concerning Linux InfiniBand support.
> -input/
> -	- info on Linux input device support.
> -intel_txt.txt
> -	- info on intel Trusted Execution Technology (intel TXT).
> -io-mapping.txt
> -	- description of io_mapping functions in linux/io-mapping.h
> -io_ordering.txt
> -	- info on ordering I/O writes to memory-mapped addresses.
> -ioctl/
> -	- directory with documents describing various IOCTL calls.
> -iostats.txt
> -	- info on I/O statistics Linux kernel provides.
> -irqflags-tracing.txt
> -	- how to use the irq-flags tracing feature.
> -isapnp.txt
> -	- info on Linux ISA Plug & Play support.
> -isdn/
> -	- directory with info on the Linux ISDN support, and supported cards.
> -kbuild/
> -	- directory with info about the kernel build process.
> -kdump/
> -	- directory with mini HowTo on getting the crash dump code to work.
> -doc-guide/
> -	- how to write and format reStructuredText kernel documentation
> -kernel-per-CPU-kthreads.txt
> -	- List of all per-CPU kthreads and how they introduce jitter.
> -kobject.txt
> -	- info of the kobject infrastructure of the Linux kernel.
> -kprobes.txt
> -	- documents the kernel probes debugging feature.
> -kref.txt
> -	- docs on adding reference counters (krefs) to kernel objects.
> -laptops/
> -	- directory with laptop related info and laptop driver documentation.
> -ldm.txt
> -	- a brief description of LDM (Windows Dynamic Disks).
> -leds/
> -	- directory with info about LED handling under Linux.
> -livepatch/
> -	- info on kernel live patching.
> -locking/
> -	- directory with info about kernel locking primitives
> -lockup-watchdogs.txt
> -	- info on soft and hard lockup detectors (aka nmi_watchdog).
> -logo.gif
> -	- full colour GIF image of Linux logo (penguin - Tux).
> -logo.txt
> -	- info on creator of above logo & site to get additional images from.
> -lsm.txt
> -	- Linux Security Modules: General Security Hooks for Linux
> -lzo.txt
> -	- kernel LZO decompressor input formats
> -m68k/
> -	- directory with info about Linux on Motorola 68k architecture.
> -mailbox.txt
> -	- How to write drivers for the common mailbox framework (IPC).
> -md/
> -	- directory with info about Linux Software RAID
> -media/
> -	- info on media drivers: uAPI, kAPI and driver documentation.
> -memory-barriers.txt
> -	- info on Linux kernel memory barriers.
> -memory-devices/
> -	- directory with info on parts like the Texas Instruments EMIF driver
> -memory-hotplug.txt
> -	- Hotpluggable memory support, how to use and current status.
> -men-chameleon-bus.txt
> -	- info on MEN chameleon bus.
> -mic/
> -	- Intel Many Integrated Core (MIC) architecture device driver.
> -mips/
> -	- directory with info about Linux on MIPS architecture.
> -misc-devices/
> -	- directory with info about devices using the misc dev subsystem
> -mmc/
> -	- directory with info about the MMC subsystem
> -mtd/
> -	- directory with info about memory technology devices (flash)
> -namespaces/
> -	- directory with various information about namespaces
> -netlabel/
> -	- directory with information on the NetLabel subsystem.
> -networking/
> -	- directory with info on various aspects of networking with Linux.
> -nfc/
> -	- directory relating info about Near Field Communications support.
> -nios2/
> -	- Linux on the Nios II architecture.
> -nommu-mmap.txt
> -	- documentation about no-mmu memory mapping support.
> -numastat.txt
> -	- info on how to read Numa policy hit/miss statistics in sysfs.
> -ntb.txt
> -	- info on Non-Transparent Bridge (NTB) drivers.
> -nvdimm/
> -	- info on non-volatile devices.
> -nvmem/
> -	- info on non volatile memory framework.
> -output/
> -	- default directory where html/LaTeX/pdf files will be written.
> -padata.txt
> -	- An introduction to the "padata" parallel execution API
> -parisc/
> -	- directory with info on using Linux on PA-RISC architecture.
> -parport-lowlevel.txt
> -	- description and usage of the low level parallel port functions.
> -pcmcia/
> -	- info on the Linux PCMCIA driver.
> -percpu-rw-semaphore.txt
> -	- RCU based read-write semaphore optimized for locking for reading
> -perf/
> -	- info about the APM X-Gene SoC Performance Monitoring Unit (PMU).
> -phy/
> -	- ino on Samsung USB 2.0 PHY adaptation layer.
> -phy.txt
> -	- Description of the generic PHY framework.
> -pi-futex.txt
> -	- documentation on lightweight priority inheritance futexes.
> -pinctrl.txt
> -	- info on pinctrl subsystem and the PINMUX/PINCONF and drivers
> -platform/
> -	- List of supported hardware by compal and Dell laptop.
> -pnp.txt
> -	- Linux Plug and Play documentation.
> -power/
> -	- directory with info on Linux PCI power management.
> -powerpc/
> -	- directory with info on using Linux with the PowerPC.
> -prctl/
> -	- directory with info on the priveledge control subsystem
> -preempt-locking.txt
> -	- info on locking under a preemptive kernel.
> -process/
> -	- how to work with the mainline kernel development process.
> -pps/
> -	- directory with information on the pulse-per-second support
> -pti/
> -	- directory with info on Intel MID PTI.
> -ptp/
> -	- directory with info on support for IEEE 1588 PTP clocks in Linux.
> -pwm.txt
> -	- info on the pulse width modulation driver subsystem
> -rapidio/
> -	- directory with info on RapidIO packet-based fabric interconnect
> -rbtree.txt
> -	- info on what red-black trees are and what they are for.
> -remoteproc.txt
> -	- info on how to handle remote processor (e.g. AMP) offloads/usage.
> -rfkill.txt
> -	- info on the radio frequency kill switch subsystem/support.
> -robust-futex-ABI.txt
> -	- documentation of the robust futex ABI.
> -robust-futexes.txt
> -	- a description of what robust futexes are.
> -rpmsg.txt
> -	- info on the Remote Processor Messaging (rpmsg) Framework
> -rtc.txt
> -	- notes on how to use the Real Time Clock (aka CMOS clock) driver.
> -s390/
> -	- directory with info on using Linux on the IBM S390.
> -scheduler/
> -	- directory with info on the scheduler.
> -scsi/
> -	- directory with info on Linux scsi support.
> -security/
> -	- directory that contains security-related info
> -serial/
> -	- directory with info on the low level serial API.
> -sgi-ioc4.txt
> -	- description of the SGI IOC4 PCI (multi function) device.
> -sh/
> -	- directory with info on porting Linux to a new architecture.
> -smsc_ece1099.txt
> -	-info on the smsc Keyboard Scan Expansion/GPIO Expansion device.
> -sound/
> -	- directory with info on sound card support.
> -spi/
> -	- overview of Linux kernel Serial Peripheral Interface (SPI) support.
> -sphinx/
> -	- no documentation here, just files required by Sphinx toolchain.
> -sphinx-static/
> -	- no documentation here, just files required by Sphinx toolchain.
> -static-keys.txt
> -	- info on how static keys allow debug code in hotpaths via patching
> -svga.txt
> -	- short guide on selecting video modes at boot via VGA BIOS.
> -sync_file.txt
> -	- Sync file API guide.
> -sysctl/
> -	- directory with info on the /proc/sys/* files.
> -target/
> -	- directory with info on generating TCM v4 fabric .ko modules
> -tee.txt
> -	- info on the TEE subsystem and drivers
> -this_cpu_ops.txt
> -	- List rationale behind and the way to use this_cpu operations.
> -thermal/
> -	- directory with information on managing thermal issues (CPU/temp)
> -trace/
> -	- directory with info on tracing technologies within linux
> -translations/
> -	- translations of this document from English to another language
> -unaligned-memory-access.txt
> -	- info on how to avoid arch breaking unaligned memory access in code.
> -unshare.txt
> -	- description of the Linux unshare system call.
> -usb/
> -	- directory with info regarding the Universal Serial Bus.
> -vfio.txt
> -	- info on Virtual Function I/O used in guest/hypervisor instances.
> -video-output.txt
> -	- sysfs class driver interface to enable/disable a video output device.
> -virtual/
> -	- directory with information on the various linux virtualizations.
> -vm/
> -	- directory with info on the Linux vm code.
> -w1/
> -	- directory with documents regarding the 1-wire (w1) subsystem.
> -watchdog/
> -	- how to auto-reboot Linux if it has "fallen and can't get up". ;-)
> -wimax/
> -	- directory with info about Intel Wireless Wimax Connections
> -core-api/workqueue.rst
> -	- information on the Concurrency Managed Workqueue implementation
> -x86/x86_64/
> -	- directory with info on Linux support for AMD x86-64 (Hammer) machines.
> -xillybus.txt
> -	- Overview and basic ui of xillybus driver
> -xtensa/
> -	- directory with documents relating to arch/xtensa port/implementation
> -xz.txt
> -	- how to make use of the XZ data compression within linux kernel
> -zorro.txt
> -	- info on writing drivers for Zorro bus devices found on Amigas.
> diff --git a/Documentation/PCI/00-INDEX b/Documentation/PCI/00-INDEX
> deleted file mode 100644
> index 206b1d5..0000000
> --- a/Documentation/PCI/00-INDEX
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -00-INDEX
> -	- this file
> -acpi-info.txt
> -	- info on how PCI host bridges are represented in ACPI
> -MSI-HOWTO.txt
> -	- the Message Signaled Interrupts (MSI) Driver Guide HOWTO and FAQ.
> -PCIEBUS-HOWTO.txt
> -	- a guide describing the PCI Express Port Bus driver
> -pci-error-recovery.txt
> -	- info on PCI error recovery
> -pci-iov-howto.txt
> -	- the PCI Express I/O Virtualization HOWTO
> -pci.txt
> -	- info on the PCI subsystem for device driver authors
> -pcieaer-howto.txt
> -	- the PCI Express Advanced Error Reporting Driver Guide HOWTO
> -endpoint/pci-endpoint.txt
> -	- guide to add endpoint controller driver and endpoint function driver.
> -endpoint/pci-endpoint-cfs.txt
> -	- guide to use configfs to configure the PCI endpoint function.
> -endpoint/pci-test-function.txt
> -	- specification of *PCI test* function device.
> -endpoint/pci-test-howto.txt
> -	- userguide for PCI endpoint test function.
> -endpoint/function/binding/
> -	- binding documentation for PCI endpoint function
> diff --git a/Documentation/RCU/00-INDEX b/Documentation/RCU/00-INDEX
> deleted file mode 100644
> index f46980c..0000000
> --- a/Documentation/RCU/00-INDEX
> +++ /dev/null
> @@ -1,34 +0,0 @@
> -00-INDEX
> -	- This file
> -arrayRCU.txt
> -	- Using RCU to Protect Read-Mostly Arrays
> -checklist.txt
> -	- Review Checklist for RCU Patches
> -listRCU.txt
> -	- Using RCU to Protect Read-Mostly Linked Lists
> -lockdep.txt
> -	- RCU and lockdep checking
> -lockdep-splat.txt
> -	- RCU Lockdep splats explained.
> -NMI-RCU.txt
> -	- Using RCU to Protect Dynamic NMI Handlers
> -rcu_dereference.txt
> -	- Proper care and feeding of return values from rcu_dereference()
> -rcubarrier.txt
> -	- RCU and Unloadable Modules
> -rculist_nulls.txt
> -	- RCU list primitives for use with SLAB_TYPESAFE_BY_RCU
> -rcuref.txt
> -	- Reference-count design for elements of lists/arrays protected by RCU
> -rcu.txt
> -	- RCU Concepts
> -RTFP.txt
> -	- List of RCU papers (bibliography) going back to 1980.
> -stallwarn.txt
> -	- RCU CPU stall warnings (module parameter rcu_cpu_stall_suppress)
> -torture.txt
> -	- RCU Torture Test Operation (CONFIG_RCU_TORTURE_TEST)
> -UP.txt
> -	- RCU on Uniprocessor Systems
> -whatisRCU.txt
> -	- What is RCU?
> diff --git a/Documentation/RCU/rcu.txt b/Documentation/RCU/rcu.txt
> index 7d4ae11..721b3e4 100644
> --- a/Documentation/RCU/rcu.txt
> +++ b/Documentation/RCU/rcu.txt
> @@ -87,7 +87,3 @@ o	Where can I find more information on RCU?
> 
>  	See the RTFP.txt file in this directory.
>  	Or point your browser at http://www.rdrop.com/users/paulmck/RCU/.
> -
> -o	What are all these files in this directory?
> -
> -	See 00-INDEX for the list.
> diff --git a/Documentation/admin-guide/README.rst b/Documentation/admin-guide/README.rst
> index 15ea785..0797eec 100644
> --- a/Documentation/admin-guide/README.rst
> +++ b/Documentation/admin-guide/README.rst
> @@ -51,8 +51,7 @@ Documentation
> 
>   - There are various README files in the Documentation/ subdirectory:
>     these typically contain kernel-specific installation notes for some
> -   drivers for example. See Documentation/00-INDEX for a list of what
> -   is contained in each file.  Please read the
> +   drivers for example. Please read the
>     :ref:`Documentation/process/changes.rst <changes>` file, as it
>     contains information about the problems, which may result by upgrading
>     your kernel.
> diff --git a/Documentation/arm/00-INDEX b/Documentation/arm/00-INDEX
> deleted file mode 100644
> index b6e69fd..0000000
> --- a/Documentation/arm/00-INDEX
> +++ /dev/null
> @@ -1,50 +0,0 @@
> -00-INDEX
> -	- this file
> -Booting
> -	- requirements for booting
> -CCN.txt
> -	- Cache Coherent Network ring-bus and perf PMU driver.
> -Interrupts
> -	- ARM Interrupt subsystem documentation
> -IXP4xx
> -	- Intel IXP4xx Network processor.
> -Netwinder
> -	- Netwinder specific documentation
> -Porting
> -       - Symbol definitions for porting Linux to a new ARM machine.
> -Setup
> -       - Kernel initialization parameters on ARM Linux
> -README
> -	- General ARM documentation
> -SA1100/
> -	- SA1100 documentation
> -Samsung-S3C24XX/
> -	- S3C24XX ARM Linux Overview
> -SPEAr/
> -	- ST SPEAr platform Linux Overview
> -VFP/
> -	- Release notes for Linux Kernel Vector Floating Point support code
> -cluster-pm-race-avoidance.txt
> -	- Algorithm for CPU and Cluster setup/teardown
> -empeg/
> -	- Ltd's Empeg MP3 Car Audio Player
> -firmware.txt
> -	- Secure firmware registration and calling.
> -kernel_mode_neon.txt
> -	- How to use NEON instructions in kernel mode
> -kernel_user_helpers.txt
> -	- Helper functions in kernel space made available for userspace.
> -mem_alignment
> -	- alignment abort handler documentation
> -memory.txt
> -	- description of the virtual memory layout
> -nwfpe/
> -	- NWFPE floating point emulator documentation
> -swp_emulation
> -	- SWP/SWPB emulation handler/logging description
> -tcm.txt
> -	- ARM Tightly Coupled Memory
> -uefi.txt
> -	- [U]EFI configuration and runtime services documentation
> -vlocks.txt
> -	- Voting locks, low-level mechanism relying on memory system atomic writes.
> diff --git a/Documentation/block/00-INDEX b/Documentation/block/00-INDEX
> deleted file mode 100644
> index 8d55b4b..0000000
> --- a/Documentation/block/00-INDEX
> +++ /dev/null
> @@ -1,34 +0,0 @@
> -00-INDEX
> -	- This file
> -bfq-iosched.txt
> -	- BFQ IO scheduler and its tunables
> -biodoc.txt
> -	- Notes on the Generic Block Layer Rewrite in Linux 2.5
> -biovecs.txt
> -	- Immutable biovecs and biovec iterators
> -capability.txt
> -	- Generic Block Device Capability (/sys/block/<device>/capability)
> -cfq-iosched.txt
> -	- CFQ IO scheduler tunables
> -cmdline-partition.txt
> -	- how to specify block device partitions on kernel command line
> -data-integrity.txt
> -	- Block data integrity
> -deadline-iosched.txt
> -	- Deadline IO scheduler tunables
> -ioprio.txt
> -	- Block io priorities (in CFQ scheduler)
> -pr.txt
> -	- Block layer support for Persistent Reservations
> -null_blk.txt
> -	- Null block for block-layer benchmarking.
> -queue-sysfs.txt
> -	- Queue's sysfs entries
> -request.txt
> -	- The members of struct request (in include/linux/blkdev.h)
> -stat.txt
> -	- Block layer statistics in /sys/block/<device>/stat
> -switching-sched.txt
> -	- Switching I/O schedulers at runtime
> -writeback_cache_control.txt
> -	- Control of volatile write back caches
> diff --git a/Documentation/blockdev/00-INDEX b/Documentation/blockdev/00-INDEX
> deleted file mode 100644
> index c08df56..0000000
> --- a/Documentation/blockdev/00-INDEX
> +++ /dev/null
> @@ -1,18 +0,0 @@
> -00-INDEX
> -	- this file
> -README.DAC960
> -	- info on Mylex DAC960/DAC1100 PCI RAID Controller Driver for Linux.
> -cciss.txt
> -	- info, major/minor #'s for Compaq's SMART Array Controllers.
> -cpqarray.txt
> -	- info on using Compaq's SMART2 Intelligent Disk Array Controllers.
> -floppy.txt
> -	- notes and driver options for the floppy disk driver.
> -mflash.txt
> -	- info on mGine m(g)flash driver for linux.
> -nbd.txt
> -	- info on a TCP implementation of a network block device.
> -paride.txt
> -	- information about the parallel port IDE subsystem.
> -ramdisk.txt
> -	- short guide on how to set up and use the RAM disk.
> diff --git a/Documentation/cdrom/00-INDEX b/Documentation/cdrom/00-INDEX
> deleted file mode 100644
> index 433edf2..0000000
> --- a/Documentation/cdrom/00-INDEX
> +++ /dev/null
> @@ -1,11 +0,0 @@
> -00-INDEX
> -	- this file (info on CD-ROMs and Linux)
> -Makefile
> -	- only used to generate TeX output from the documentation.
> -cdrom-standard.tex
> -	- LaTeX document on standardizing the CD-ROM programming interface.
> -ide-cd
> -	- info on setting up and using ATAPI (aka IDE) CD-ROMs.
> -packet-writing.txt
> -	- Info on the CDRW packet writing module
> -
> diff --git a/Documentation/cgroup-v1/00-INDEX b/Documentation/cgroup-v1/00-INDEX
> deleted file mode 100644
> index 13e0c85..0000000
> --- a/Documentation/cgroup-v1/00-INDEX
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -00-INDEX
> -	- this file
> -blkio-controller.txt
> -	- Description for Block IO Controller, implementation and usage details.
> -cgroups.txt
> -	- Control Groups definition, implementation details, examples and API.
> -cpuacct.txt
> -	- CPU Accounting Controller; account CPU usage for groups of tasks.
> -cpusets.txt
> -	- documents the cpusets feature; assign CPUs and Mem to a set of tasks.
> -admin-guide/devices.rst
> -	- Device Whitelist Controller; description, interface and security.
> -freezer-subsystem.txt
> -	- checkpointing; rationale to not use signals, interface.
> -hugetlb.txt
> -	- HugeTLB Controller implementation and usage details.
> -memcg_test.txt
> -	- Memory Resource Controller; implementation details.
> -memory.txt
> -	- Memory Resource Controller; design, accounting, interface, testing.
> -net_cls.txt
> -	- Network classifier cgroups details and usages.
> -net_prio.txt
> -	- Network priority cgroups details and usages.
> -pids.txt
> -	- Process number cgroups details and usages.
> diff --git a/Documentation/devicetree/00-INDEX b/Documentation/devicetree/00-INDEX
> deleted file mode 100644
> index 8c4102c..0000000
> --- a/Documentation/devicetree/00-INDEX
> +++ /dev/null
> @@ -1,12 +0,0 @@
> -Documentation for device trees, a data structure by which bootloaders pass
> -hardware layout to Linux in a device-independent manner, simplifying hardware
> -probing.  This subsystem is maintained by Grant Likely
> -<grant.likely@secretlab.ca> and has a mailing list at
> -https://lists.ozlabs.org/listinfo/devicetree-discuss
> -
> -00-INDEX
> -	- this file
> -booting-without-of.txt
> -	- Booting Linux without Open Firmware, describes history and format of device trees.
> -usage-model.txt
> -	- How Linux uses DT and what DT aims to solve.
> \ No newline at end of file
> diff --git a/Documentation/fb/00-INDEX b/Documentation/fb/00-INDEX
> deleted file mode 100644
> index fe85e7c..0000000
> --- a/Documentation/fb/00-INDEX
> +++ /dev/null
> @@ -1,75 +0,0 @@
> -Index of files in Documentation/fb.  If you think something about frame
> -buffer devices needs an entry here, needs correction or you've written one
> -please mail me.
> -				    Geert Uytterhoeven <geert@linux-m68k.org>
> -
> -00-INDEX
> -	- this file.
> -api.txt
> -	- The frame buffer API between applications and buffer devices.
> -arkfb.txt
> -	- info on the fbdev driver for ARK Logic chips.
> -aty128fb.txt
> -	- info on the ATI Rage128 frame buffer driver.
> -cirrusfb.txt
> -	- info on the driver for Cirrus Logic chipsets.
> -cmap_xfbdev.txt
> -	- an introduction to fbdev's cmap structures.
> -deferred_io.txt
> -	- an introduction to deferred IO.
> -efifb.txt
> -	- info on the EFI platform driver for Intel based Apple computers.
> -ep93xx-fb.txt
> -	- info on the driver for EP93xx LCD controller.
> -fbcon.txt
> -	- intro to and usage guide for the framebuffer console (fbcon).
> -framebuffer.txt
> -	- introduction to frame buffer devices.
> -gxfb.txt
> -	- info on the framebuffer driver for AMD Geode GX2 based processors.
> -intel810.txt
> -	- documentation for the Intel 810/815 framebuffer driver.
> -intelfb.txt
> -	- docs for Intel 830M/845G/852GM/855GM/865G/915G/945G fb driver.
> -internals.txt
> -	- quick overview of frame buffer device internals.
> -lxfb.txt
> -	- info on the framebuffer driver for AMD Geode LX based processors.
> -matroxfb.txt
> -	- info on the Matrox framebuffer driver for Alpha, Intel and PPC.
> -metronomefb.txt
> -	- info on the driver for the Metronome display controller.
> -modedb.txt
> -	- info on the video mode database.
> -pvr2fb.txt
> -	- info on the PowerVR 2 frame buffer driver.
> -pxafb.txt
> -	- info on the driver for the PXA25x LCD controller.
> -s3fb.txt
> -	- info on the fbdev driver for S3 Trio/Virge chips.
> -sa1100fb.txt
> -	- information about the driver for the SA-1100 LCD controller.
> -sh7760fb.txt
> -	- info on the SH7760/SH7763 integrated LCDC Framebuffer driver.
> -sisfb.txt
> -	- info on the framebuffer device driver for various SiS chips.
> -sm501.txt
> -	- info on the framebuffer device driver for sm501 videoframebuffer.
> -sstfb.txt
> -	- info on the frame buffer driver for 3dfx' Voodoo Graphics boards.
> -tgafb.txt
> -	- info on the TGA (DECChip 21030) frame buffer driver.
> -tridentfb.txt
> -	info on the framebuffer driver for some Trident chip based cards.
> -udlfb.txt
> -	- Driver for DisplayLink USB 2.0 chips.
> -uvesafb.txt
> -	- info on the userspace VESA (VBE2+ compliant) frame buffer device.
> -vesafb.txt
> -	- info on the VESA frame buffer device.
> -viafb.modes
> -	- list of modes for VIA Integration Graphic Chip.
> -viafb.txt
> -	- info on the VIA Integration Graphic Chip console framebuffer driver.
> -vt8623fb.txt
> -	- info on the fb driver for the graphics core in VIA VT8623 chipsets.
> diff --git a/Documentation/filesystems/00-INDEX b/Documentation/filesystems/00-INDEX
> deleted file mode 100644
> index 0937bad..0000000
> --- a/Documentation/filesystems/00-INDEX
> +++ /dev/null
> @@ -1,153 +0,0 @@
> -00-INDEX
> -	- this file (info on some of the filesystems supported by linux).
> -Locking
> -	- info on locking rules as they pertain to Linux VFS.
> -9p.txt
> -	- 9p (v9fs) is an implementation of the Plan 9 remote fs protocol.
> -adfs.txt
> -	- info and mount options for the Acorn Advanced Disc Filing System.
> -afs.txt
> -	- info and examples for the distributed AFS (Andrew File System) fs.
> -affs.txt
> -	- info and mount options for the Amiga Fast File System.
> -autofs-mount-control.txt
> -	- info on device control operations for autofs module.
> -automount-support.txt
> -	- information about filesystem automount support.
> -befs.txt
> -	- information about the BeOS filesystem for Linux.
> -bfs.txt
> -	- info for the SCO UnixWare Boot Filesystem (BFS).
> -btrfs.txt
> -	- info for the BTRFS filesystem.
> -caching/
> -	- directory containing filesystem cache documentation.
> -ceph.txt
> -	- info for the Ceph Distributed File System.
> -cifs/
> -	- directory containing CIFS filesystem documentation and example code.
> -coda.txt
> -	- description of the CODA filesystem.
> -configfs/
> -	- directory containing configfs documentation and example code.
> -cramfs.txt
> -	- info on the cram filesystem for small storage (ROMs etc).
> -dax.txt
> -	- info on avoiding the page cache for files stored on CPU-addressable
> -	  storage devices.
> -debugfs.txt
> -	- info on the debugfs filesystem.
> -devpts.txt
> -	- info on the devpts filesystem.
> -directory-locking
> -	- info about the locking scheme used for directory operations.
> -dlmfs.txt
> -	- info on the userspace interface to the OCFS2 DLM.
> -dnotify.txt
> -	- info about directory notification in Linux.
> -dnotify_test.c
> -	- example program for dnotify.
> -ecryptfs.txt
> -	- docs on eCryptfs: stacked cryptographic filesystem for Linux.
> -efivarfs.txt
> -	- info for the efivarfs filesystem.
> -exofs.txt
> -	- info, usage, mount options, design about EXOFS.
> -ext2.txt
> -	- info, mount options and specifications for the Ext2 filesystem.
> -ext3.txt
> -	- info, mount options and specifications for the Ext3 filesystem.
> -ext4.txt
> -	- info, mount options and specifications for the Ext4 filesystem.
> -f2fs.txt
> -	- info and mount options for the F2FS filesystem.
> -fiemap.txt
> -	- info on fiemap ioctl.
> -files.txt
> -	- info on file management in the Linux kernel.
> -fuse.txt
> -	- info on the Filesystem in User SpacE including mount options.
> -gfs2-glocks.txt
> -	- info on the Global File System 2 - Glock internal locking rules.
> -gfs2-uevents.txt
> -	- info on the Global File System 2 - uevents.
> -gfs2.txt
> -	- info on the Global File System 2.
> -hfs.txt
> -	- info on the Macintosh HFS Filesystem for Linux.
> -hfsplus.txt
> -	- info on the Macintosh HFSPlus Filesystem for Linux.
> -hpfs.txt
> -	- info and mount options for the OS/2 HPFS.
> -inotify.txt
> -	- info on the powerful yet simple file change notification system.
> -isofs.txt
> -	- info and mount options for the ISO 9660 (CDROM) filesystem.
> -jfs.txt
> -	- info and mount options for the JFS filesystem.
> -locks.txt
> -	- info on file locking implementations, flock() vs. fcntl(), etc.
> -mandatory-locking.txt
> -	- info on the Linux implementation of Sys V mandatory file locking.
> -nfs/
> -	- nfs-related documentation.
> -nilfs2.txt
> -	- info and mount options for the NILFS2 filesystem.
> -ntfs.txt
> -	- info and mount options for the NTFS filesystem (Windows NT).
> -ocfs2.txt
> -	- info and mount options for the OCFS2 clustered filesystem.
> -omfs.txt
> -	- info on the Optimized MPEG FileSystem.
> -path-lookup.txt
> -	- info on path walking and name lookup locking.
> -pohmelfs/
> -	- directory containing pohmelfs filesystem documentation.
> -porting
> -	- various information on filesystem porting.
> -proc.txt
> -	- info on Linux's /proc filesystem.
> -qnx6.txt
> -	- info on the QNX6 filesystem.
> -quota.txt
> -	- info on Quota subsystem.
> -ramfs-rootfs-initramfs.txt
> -	- info on the 'in memory' filesystems ramfs, rootfs and initramfs.
> -relay.txt
> -	- info on relay, for efficient streaming from kernel to user space.
> -romfs.txt
> -	- description of the ROMFS filesystem.
> -seq_file.txt
> -	- how to use the seq_file API.
> -sharedsubtree.txt
> -	- a description of shared subtrees for namespaces.
> -spufs.txt
> -	- info and mount options for the SPU filesystem used on Cell.
> -squashfs.txt
> -	- info on the squashfs filesystem.
> -sysfs-pci.txt
> -	- info on accessing PCI device resources through sysfs.
> -sysfs-tagging.txt
> -	- info on sysfs tagging to avoid duplicates.
> -sysfs.txt
> -	- info on sysfs, a ram-based filesystem for exporting kernel objects.
> -sysv-fs.txt
> -	- info on the SystemV/V7/Xenix/Coherent filesystem.
> -tmpfs.txt
> -	- info on tmpfs, a filesystem that holds all files in virtual memory.
> -ubifs.txt
> -	- info on the Unsorted Block Images FileSystem.
> -udf.txt
> -	- info and mount options for the UDF filesystem.
> -ufs.txt
> -	- info on the ufs filesystem.
> -vfat.txt
> -	- info on using the VFAT filesystem used in Windows NT and Windows 95.
> -vfs.txt
> -	- overview of the Virtual File System.
> -xfs-delayed-logging-design.txt
> -	- info on the XFS Delayed Logging Design.
> -xfs-self-describing-metadata.txt
> -	- info on XFS Self Describing Metadata.
> -xfs.txt
> -	- info and mount options for the XFS filesystem.
> diff --git a/Documentation/filesystems/nfs/00-INDEX b/Documentation/filesystems/nfs/00-INDEX
> deleted file mode 100644
> index 53f3b59..0000000
> --- a/Documentation/filesystems/nfs/00-INDEX
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -00-INDEX
> -	- this file (nfs-related documentation).
> -Exporting
> -	- explanation of how to make filesystems exportable.
> -fault_injection.txt
> -	- information for using fault injection on the server
> -knfsd-stats.txt
> -	- statistics which the NFS server makes available to user space.
> -nfs.txt
> -	- nfs client, and DNS resolution for fs_locations.
> -nfs41-server.txt
> -	- info on the Linux server implementation of NFSv4 minor version 1.
> -nfs-rdma.txt
> -	- how to install and setup the Linux NFS/RDMA client and server software
> -nfsd-admin-interfaces.txt
> -	- Administrative interfaces for nfsd.
> -nfsroot.txt
> -	- short guide on setting up a diskless box with NFS root filesystem.
> -pnfs.txt
> -	- short explanation of some of the internals of the pnfs client code
> -rpc-cache.txt
> -	- introduction to the caching mechanisms in the sunrpc layer.
> -idmapper.txt
> -	- information for configuring request-keys to be used by idmapper
> -rpc-server-gss.txt
> -	- Information on GSS authentication support in the NFS Server
> diff --git a/Documentation/fmc/00-INDEX b/Documentation/fmc/00-INDEX
> deleted file mode 100644
> index 431c695..0000000
> --- a/Documentation/fmc/00-INDEX
> +++ /dev/null
> @@ -1,38 +0,0 @@
> -
> -Documentation in this directory comes from sections of the manual we
> -wrote for the externally-developed fmc-bus package. The complete
> -manual as of today (2013-02) is available in PDF format at
> -http://www.ohwr.org/projects/fmc-bus/files
> -
> -00-INDEX
> -	- this file.
> -
> -FMC-and-SDB.txt
> -	- What are FMC and SDB, basic concepts for this framework
> -
> -API.txt
> -	- The functions that are exported by the bus driver
> -
> -parameters.txt
> -	- The module parameters
> -
> -carrier.txt
> -	- writing a carrier (a device)
> -
> -mezzanine.txt
> -	- writing code for your mezzanine (a driver)
> -
> -identifiers.txt
> -	- how identification and matching works
> -
> -fmc-fakedev.txt
> -	- about drivers/fmc/fmc-fakedev.ko
> -
> -fmc-trivial.txt
> -	- about drivers/fmc/fmc-trivial.ko
> -
> -fmc-write-eeprom.txt
> -	- about drivers/fmc/fmc-write-eeprom.ko
> -
> -fmc-chardev.txt
> -	- about drivers/fmc/fmc-chardev.ko
> diff --git a/Documentation/gpio/00-INDEX b/Documentation/gpio/00-INDEX
> deleted file mode 100644
> index 17e19a6..0000000
> --- a/Documentation/gpio/00-INDEX
> +++ /dev/null
> @@ -1,4 +0,0 @@
> -00-INDEX
> -	- This file
> -sysfs.txt
> -	- Information about the GPIO sysfs interface
> diff --git a/Documentation/ide/00-INDEX b/Documentation/ide/00-INDEX
> deleted file mode 100644
> index 22f98ca..0000000
> --- a/Documentation/ide/00-INDEX
> +++ /dev/null
> @@ -1,14 +0,0 @@
> -00-INDEX
> -    	- this file
> -ChangeLog.ide-cd.1994-2004
> -	- ide-cd changelog
> -ChangeLog.ide-floppy.1996-2002
> -	- ide-floppy changelog
> -ChangeLog.ide-tape.1995-2002
> -	- ide-tape changelog
> -ide-tape.txt
> -	- info on the IDE ATAPI streaming tape driver
> -ide.txt
> -	- important info for users of ATA devices (IDE/EIDE disks and CD-ROMS).
> -warm-plug-howto.txt
> -	- using sysfs to remove and add IDE devices.
> \ No newline at end of file
> diff --git a/Documentation/ioctl/00-INDEX b/Documentation/ioctl/00-INDEX
> deleted file mode 100644
> index c1a9257..0000000
> --- a/Documentation/ioctl/00-INDEX
> +++ /dev/null
> @@ -1,12 +0,0 @@
> -00-INDEX
> -	- this file
> -botching-up-ioctls.txt
> -	- how to avoid botching up ioctls
> -cdrom.txt
> -	- summary of CDROM ioctl calls
> -hdio.txt
> -	- summary of HDIO_ ioctl calls
> -ioctl-decoding.txt
> -	- how to decode the bits of an IOCTL code
> -ioctl-number.txt
> -	- how to implement and register device/driver ioctl calls
> diff --git a/Documentation/isdn/00-INDEX b/Documentation/isdn/00-INDEX
> deleted file mode 100644
> index 2d1889b..0000000
> --- a/Documentation/isdn/00-INDEX
> +++ /dev/null
> @@ -1,42 +0,0 @@
> -00-INDEX
> -	- this file (info on ISDN implementation for Linux)
> -CREDITS
> -	- list of the kind folks that brought you this stuff.
> -HiSax.cert
> -	- information about the ITU approval certification of the HiSax driver.
> -INTERFACE
> -	- description of isdn4linux Link Level and Hardware Level interfaces.
> -INTERFACE.fax
> -	- description of the fax subinterface of isdn4linux.
> -INTERFACE.CAPI
> -	- description of kernel CAPI Link Level to Hardware Level interface.
> -README
> -	- general info on what you need and what to do for Linux ISDN.
> -README.FAQ
> -	- general info for FAQ.
> -README.HiSax
> -	- info on the HiSax driver which replaces the old teles.
> -README.audio
> -	- info for running audio over ISDN.
> -README.avmb1
> -	- info on driver for AVM-B1 ISDN card.
> -README.concap
> -	- info on "CONCAP" encapsulation protocol interface used for X.25.
> -README.diversion
> -	- info on module for isdn diversion services.
> -README.fax
> -	- info for using Fax over ISDN.
> -README.gigaset
> -	- info on the drivers for Siemens Gigaset ISDN adapters
> -README.hfc-pci
> -	- info on hfc-pci based cards.
> -README.hysdn
> -        - info on driver for Hypercope active HYSDN cards
> -README.mISDN
> -	- info on the Modular ISDN subsystem (mISDN)
> -README.syncppp
> -	- info on running Sync PPP over ISDN.
> -README.x25
> -	- info for running X.25 over ISDN.
> -syncPPP.FAQ
> -	- frequently asked questions about running PPP over ISDN.
> diff --git a/Documentation/kbuild/00-INDEX b/Documentation/kbuild/00-INDEX
> deleted file mode 100644
> index 8c5e6aa..0000000
> --- a/Documentation/kbuild/00-INDEX
> +++ /dev/null
> @@ -1,14 +0,0 @@
> -00-INDEX
> -	- this file: info on the kernel build process
> -headers_install.txt
> -	- how to export Linux headers for use by userspace
> -kbuild.txt
> -	- developer information on kbuild
> -kconfig.txt
> -	- usage help for make *config
> -kconfig-language.txt
> -	- specification of Config Language, the language in Kconfig files
> -makefiles.txt
> -	- developer information for linux kernel makefiles
> -modules.txt
> -	- how to build modules and to install them
> diff --git a/Documentation/laptops/00-INDEX b/Documentation/laptops/00-INDEX
> deleted file mode 100644
> index 86169dc..0000000
> --- a/Documentation/laptops/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- This file
> -asus-laptop.txt
> -	- information on the Asus Laptop Extras driver.
> -disk-shock-protection.txt
> -	- information on hard disk shock protection.
> -laptop-mode.txt
> -	- how to conserve battery power using laptop-mode.
> -sony-laptop.txt
> -	- Sony Notebook Control Driver (SNC) Readme.
> -sonypi.txt
> -	- info on Linux Sony Programmable I/O Device support.
> -thinkpad-acpi.txt
> -	- information on the (IBM and Lenovo) ThinkPad ACPI Extras driver.
> -toshiba_haps.txt
> -	- information on the Toshiba HDD Active Protection Sensor driver.
> diff --git a/Documentation/leds/00-INDEX b/Documentation/leds/00-INDEX
> deleted file mode 100644
> index ae626b2..0000000
> --- a/Documentation/leds/00-INDEX
> +++ /dev/null
> @@ -1,32 +0,0 @@
> -00-INDEX
> -	- This file
> -leds-blinkm.txt
> -	- Driver for BlinkM LED-devices.
> -leds-class.txt
> -	- documents LED handling under Linux.
> -leds-class-flash.txt
> -	- documents flash LED handling under Linux.
> -leds-lm3556.txt
> -	- notes on how to use the leds-lm3556 driver.
> -leds-lp3944.txt
> -	- notes on how to use the leds-lp3944 driver.
> -leds-lp5521.txt
> -	- notes on how to use the leds-lp5521 driver.
> -leds-lp5523.txt
> -	- notes on how to use the leds-lp5523 driver.
> -leds-lp5562.txt
> -	- notes on how to use the leds-lp5562 driver.
> -leds-lp55xx.txt
> -	- description about lp55xx common driver.
> -leds-lm3556.txt
> -	- notes on how to use the leds-lm3556 driver.
> -leds-mlxcpld.txt
> -	- notes on how to use the leds-mlxcpld driver.
> -ledtrig-oneshot.txt
> -	- One-shot LED trigger for both sporadic and dense events.
> -ledtrig-transient.txt
> -	- LED Transient Trigger, one shot timer activation.
> -ledtrig-usbport.txt
> -	- notes on how to use the drivers/usb/core/ledtrig-usbport.c trigger.
> -uleds.txt
> -	- notes on how to use the uleds driver.
> diff --git a/Documentation/locking/00-INDEX b/Documentation/locking/00-INDEX
> deleted file mode 100644
> index c256c9b..0000000
> --- a/Documentation/locking/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- this file.
> -lockdep-design.txt
> -	- documentation on the runtime locking correctness validator.
> -lockstat.txt
> -	- info on collecting statistics on locks (and contention).
> -mutex-design.txt
> -	- info on the generic mutex subsystem.
> -rt-mutex-design.txt
> -	- description of the RealTime mutex implementation design.
> -rt-mutex.txt
> -	- desc. of RT-mutex subsystem with PI (Priority Inheritance) support.
> -spinlocks.txt
> -	- info on using spinlocks to provide exclusive access in kernel.
> -ww-mutex-design.txt
> -	- Intro to Mutex wait/would deadlock handling.s
> diff --git a/Documentation/m68k/00-INDEX b/Documentation/m68k/00-INDEX
> deleted file mode 100644
> index 2be8c6b..0000000
> --- a/Documentation/m68k/00-INDEX
> +++ /dev/null
> @@ -1,7 +0,0 @@
> -00-INDEX
> -	- this file
> -README.buddha
> -	- Amiga Buddha and Catweasel IDE Driver
> -kernel-options.txt
> -	- command line options for Linux/m68k
> -
> diff --git a/Documentation/mips/00-INDEX b/Documentation/mips/00-INDEX
> deleted file mode 100644
> index 8ae9cff..0000000
> --- a/Documentation/mips/00-INDEX
> +++ /dev/null
> @@ -1,4 +0,0 @@
> -00-INDEX
> -	- this file.
> -AU1xxx_IDE.README
> -	- README for MIPS AU1XXX IDE driver.
> diff --git a/Documentation/mmc/00-INDEX b/Documentation/mmc/00-INDEX
> deleted file mode 100644
> index 4623bc0..0000000
> --- a/Documentation/mmc/00-INDEX
> +++ /dev/null
> @@ -1,10 +0,0 @@
> -00-INDEX
> -        - this file
> -mmc-dev-attrs.txt
> -        - info on SD and MMC device attributes
> -mmc-dev-parts.txt
> -        - info on SD and MMC device partitions
> -mmc-async-req.txt
> -        - info on mmc asynchronous requests
> -mmc-tools.txt
> -	- info on mmc-utils tools
> diff --git a/Documentation/netlabel/00-INDEX b/Documentation/netlabel/00-INDEX
> deleted file mode 100644
> index 837bf35..0000000
> --- a/Documentation/netlabel/00-INDEX
> +++ /dev/null
> @@ -1,10 +0,0 @@
> -00-INDEX
> -	- this file.
> -cipso_ipv4.txt
> -	- documentation on the IPv4 CIPSO protocol engine.
> -draft-ietf-cipso-ipsecurity-01.txt
> -	- IETF draft of the CIPSO protocol, dated 16 July 1992.
> -introduction.txt
> -	- NetLabel introduction, READ THIS FIRST.
> -lsm_interface.txt
> -	- documentation on the NetLabel kernel security module API.
> diff --git a/Documentation/netlabel/cipso_ipv4.txt b/Documentation/netlabel/cipso_ipv4.txt
> index 93dacb1..a607548 100644
> --- a/Documentation/netlabel/cipso_ipv4.txt
> +++ b/Documentation/netlabel/cipso_ipv4.txt
> @@ -6,11 +6,12 @@ May 17, 2006
> 
>   * Overview
> 
> -The NetLabel CIPSO/IPv4 protocol engine is based on the IETF Commercial IP
> -Security Option (CIPSO) draft from July 16, 1992.  A copy of this draft can be
> -found in this directory, consult '00-INDEX' for the filename.  While the IETF
> -draft never made it to an RFC standard it has become a de-facto standard for
> -labeled networking and is used in many trusted operating systems.
> +The NetLabel CIPSO/IPv4 protocol engine is based on the IETF Commercial
> +IP Security Option (CIPSO) draft from July 16, 1992.  A copy of this
> +draft can be found in this directory
> +(draft-ietf-cipso-ipsecurity-01.txt).  While the IETF draft never made
> +it to an RFC standard it has become a de-facto standard for labeled
> +networking and is used in many trusted operating systems.
> 
>   * Outbound Packet Processing
> 
> diff --git a/Documentation/netlabel/introduction.txt b/Documentation/netlabel/introduction.txt
> index 5ecd8d1..3caf77b 100644
> --- a/Documentation/netlabel/introduction.txt
> +++ b/Documentation/netlabel/introduction.txt
> @@ -22,7 +22,7 @@ refrain from calling the protocol engines directly, instead they should use
>  the NetLabel kernel security module API described below.
> 
>  Detailed information about each NetLabel protocol engine can be found in this
> -directory, consult '00-INDEX' for filenames.
> +directory.
> 
>   * Communication Layer
> 
> diff --git a/Documentation/networking/00-INDEX b/Documentation/networking/00-INDEX
> deleted file mode 100644
> index 02a323c..0000000
> --- a/Documentation/networking/00-INDEX
> +++ /dev/null
> @@ -1,234 +0,0 @@
> -00-INDEX
> -	- this file
> -3c509.txt
> -	- information on the 3Com Etherlink III Series Ethernet cards.
> -6pack.txt
> -	- info on the 6pack protocol, an alternative to KISS for AX.25
> -LICENSE.qla3xxx
> -	- GPLv2 for QLogic Linux Networking HBA Driver
> -LICENSE.qlge
> -	- GPLv2 for QLogic Linux qlge NIC Driver
> -LICENSE.qlcnic
> -	- GPLv2 for QLogic Linux qlcnic NIC Driver
> -PLIP.txt
> -	- PLIP: The Parallel Line Internet Protocol device driver
> -README.ipw2100
> -	- README for the Intel PRO/Wireless 2100 driver.
> -README.ipw2200
> -	- README for the Intel PRO/Wireless 2915ABG and 2200BG driver.
> -README.sb1000
> -	- info on General Instrument/NextLevel SURFboard1000 cable modem.
> -altera_tse.txt
> -	- Altera Triple-Speed Ethernet controller.
> -arcnet-hardware.txt
> -	- tons of info on ARCnet, hubs, jumper settings for ARCnet cards, etc.
> -arcnet.txt
> -	- info on the using the ARCnet driver itself.
> -atm.txt
> -	- info on where to get ATM programs and support for Linux.
> -ax25.txt
> -	- info on using AX.25 and NET/ROM code for Linux
> -baycom.txt
> -	- info on the driver for Baycom style amateur radio modems
> -bonding.txt
> -	- Linux Ethernet Bonding Driver HOWTO: link aggregation in Linux.
> -bridge.txt
> -	- where to get user space programs for ethernet bridging with Linux.
> -cdc_mbim.txt
> -	- 3G/LTE USB modem (Mobile Broadband Interface Model)
> -checksum-offloads.txt
> -	- Explanation of checksum offloads; LCO, RCO
> -cops.txt
> -	- info on the COPS LocalTalk Linux driver
> -cs89x0.txt
> -	- the Crystal LAN (CS8900/20-based) Ethernet ISA adapter driver
> -cxacru.txt
> -	- Conexant AccessRunner USB ADSL Modem
> -cxacru-cf.py
> -	- Conexant AccessRunner USB ADSL Modem configuration file parser
> -cxgb.txt
> -	- Release Notes for the Chelsio N210 Linux device driver.
> -dccp.txt
> -	- the Datagram Congestion Control Protocol (DCCP) (RFC 4340..42).
> -dctcp.txt
> -	- DataCenter TCP congestion control
> -de4x5.txt
> -	- the Digital EtherWORKS DE4?? and DE5?? PCI Ethernet driver
> -decnet.txt
> -	- info on using the DECnet networking layer in Linux.
> -dl2k.txt
> -	- README for D-Link DL2000-based Gigabit Ethernet Adapters (dl2k.ko).
> -dm9000.txt
> -	- README for the Simtec DM9000 Network driver.
> -dmfe.txt
> -	- info on the Davicom DM9102(A)/DM9132/DM9801 fast ethernet driver.
> -dns_resolver.txt
> -	- The DNS resolver module allows kernel servies to make DNS queries.
> -driver.txt
> -	- Softnet driver issues.
> -ena.txt
> -	- info on Amazon's Elastic Network Adapter (ENA)
> -e100.txt
> -	- info on Intel's EtherExpress PRO/100 line of 10/100 boards
> -e1000.txt
> -	- info on Intel's E1000 line of gigabit ethernet boards
> -e1000e.txt
> -	- README for the Intel Gigabit Ethernet Driver (e1000e).
> -eql.txt
> -	- serial IP load balancing
> -fib_trie.txt
> -	- Level Compressed Trie (LC-trie) notes: a structure for routing.
> -filter.txt
> -	- Linux Socket Filtering
> -fore200e.txt
> -	- FORE Systems PCA-200E/SBA-200E ATM NIC driver info.
> -framerelay.txt
> -	- info on using Frame Relay/Data Link Connection Identifier (DLCI).
> -gen_stats.txt
> -	- Generic networking statistics for netlink users.
> -generic-hdlc.txt
> -	- The generic High Level Data Link Control (HDLC) layer.
> -generic_netlink.txt
> -	- info on Generic Netlink
> -gianfar.txt
> -	- Gianfar Ethernet Driver.
> -i40e.txt
> -	- README for the Intel Ethernet Controller XL710 Driver (i40e).
> -i40evf.txt
> -	- Short note on the Driver for the Intel(R) XL710 X710 Virtual Function
> -ieee802154.txt
> -	- Linux IEEE 802.15.4 implementation, API and drivers
> -igb.txt
> -	- README for the Intel Gigabit Ethernet Driver (igb).
> -igbvf.txt
> -	- README for the Intel Gigabit Ethernet Driver (igbvf).
> -ip-sysctl.txt
> -	- /proc/sys/net/ipv4/* variables
> -ip_dynaddr.txt
> -	- IP dynamic address hack e.g. for auto-dialup links
> -ipddp.txt
> -	- AppleTalk-IP Decapsulation and AppleTalk-IP Encapsulation
> -iphase.txt
> -	- Interphase PCI ATM (i)Chip IA Linux driver info.
> -ipsec.txt
> -	- Note on not compressing IPSec payload and resulting failed policy check.
> -ipv6.txt
> -	- Options to the ipv6 kernel module.
> -ipvs-sysctl.txt
> -	- Per-inode explanation of the /proc/sys/net/ipv4/vs interface.
> -irda.txt
> -	- where to get IrDA (infrared) utilities and info for Linux.
> -ixgb.txt
> -	- README for the Intel 10 Gigabit Ethernet Driver (ixgb).
> -ixgbe.txt
> -	- README for the Intel 10 Gigabit Ethernet Driver (ixgbe).
> -ixgbevf.txt
> -	- README for the Intel Virtual Function (VF) Driver (ixgbevf).
> -l2tp.txt
> -	- User guide to the L2TP tunnel protocol.
> -lapb-module.txt
> -	- programming information of the LAPB module.
> -ltpc.txt
> -	- the Apple or Farallon LocalTalk PC card driver
> -mac80211-auth-assoc-deauth.txt
> -	- authentication and association / deauth-disassoc with max80211
> -mac80211-injection.txt
> -	- HOWTO use packet injection with mac80211
> -multiqueue.txt
> -	- HOWTO for multiqueue network device support.
> -netconsole.txt
> -	- The network console module netconsole.ko: configuration and notes.
> -netdev-features.txt
> -	- Network interface features API description.
> -netdevices.txt
> -	- info on network device driver functions exported to the kernel.
> -netif-msg.txt
> -	- Design of the network interface message level setting (NETIF_MSG_*).
> -netlink_mmap.txt
> -	- memory mapped I/O with netlink
> -nf_conntrack-sysctl.txt
> -	- list of netfilter-sysctl knobs.
> -nfc.txt
> -	- The Linux Near Field Communication (NFS) subsystem.
> -openvswitch.txt
> -	- Open vSwitch developer documentation.
> -operstates.txt
> -	- Overview of network interface operational states.
> -packet_mmap.txt
> -	- User guide to memory mapped packet socket rings (PACKET_[RT]X_RING).
> -phonet.txt
> -	- The Phonet packet protocol used in Nokia cellular modems.
> -phy.txt
> -	- The PHY abstraction layer.
> -pktgen.txt
> -	- User guide to the kernel packet generator (pktgen.ko).
> -policy-routing.txt
> -	- IP policy-based routing
> -ppp_generic.txt
> -	- Information about the generic PPP driver.
> -proc_net_tcp.txt
> -	- Per inode overview of the /proc/net/tcp and /proc/net/tcp6 interfaces.
> -radiotap-headers.txt
> -	- Background on radiotap headers.
> -ray_cs.txt
> -	- Raylink Wireless LAN card driver info.
> -rds.txt
> -	- Background on the reliable, ordered datagram delivery method RDS.
> -regulatory.txt
> -	- Overview of the Linux wireless regulatory infrastructure.
> -rxrpc.txt
> -	- Guide to the RxRPC protocol.
> -s2io.txt
> -	- Release notes for Neterion Xframe I/II 10GbE driver.
> -scaling.txt
> -	- Explanation of network scaling techniques: RSS, RPS, RFS, aRFS, XPS.
> -sctp.txt
> -	- Notes on the Linux kernel implementation of the SCTP protocol.
> -secid.txt
> -	- Explanation of the secid member in flow structures.
> -skfp.txt
> -	- SysKonnect FDDI (SK-5xxx, Compaq Netelligent) driver info.
> -smc9.txt
> -	- the driver for SMC's 9000 series of Ethernet cards
> -spider_net.txt
> -	- README for the Spidernet Driver (as found in PS3 / Cell BE).
> -stmmac.txt
> -	- README for the STMicro Synopsys Ethernet driver.
> -tc-actions-env-rules.txt
> -	- rules for traffic control (tc) actions.
> -timestamping.txt
> -	- overview of network packet timestamping variants.
> -tcp.txt
> -	- short blurb on how TCP output takes place.
> -tcp-thin.txt
> -	- kernel tuning options for low rate 'thin' TCP streams.
> -team.txt
> -	- pointer to information for ethernet teaming devices.
> -tlan.txt
> -	- ThunderLAN (Compaq Netelligent 10/100, Olicom OC-2xxx) driver info.
> -tproxy.txt
> -	- Transparent proxy support user guide.
> -tuntap.txt
> -	- TUN/TAP device driver, allowing user space Rx/Tx of packets.
> -udplite.txt
> -	- UDP-Lite protocol (RFC 3828) introduction.
> -vortex.txt
> -	- info on using 3Com Vortex (3c590, 3c592, 3c595, 3c597) Ethernet cards.
> -vxge.txt
> -	- README for the Neterion X3100 PCIe Server Adapter.
> -vxlan.txt
> -	- Virtual extensible LAN overview
> -x25.txt
> -	- general info on X.25 development.
> -x25-iface.txt
> -	- description of the X.25 Packet Layer to LAPB device interface.
> -xfrm_device.txt
> -	- description of XFRM offload API
> -xfrm_proc.txt
> -	- description of the statistics package for XFRM.
> -xfrm_sync.txt
> -	- sync patches for XFRM enable migration of an SA between hosts.
> -xfrm_sysctl.txt
> -	- description of the XFRM configuration options.
> -z8530drv.txt
> -	- info about Linux driver for Z8530 based HDLC cards for AX.25
> diff --git a/Documentation/parisc/00-INDEX b/Documentation/parisc/00-INDEX
> deleted file mode 100644
> index cbd0609..0000000
> --- a/Documentation/parisc/00-INDEX
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -00-INDEX
> -	- this file.
> -debugging
> -	- some debugging hints for real-mode code
> -registers
> -	- current/planned usage of registers
> diff --git a/Documentation/power/00-INDEX b/Documentation/power/00-INDEX
> deleted file mode 100644
> index 7f3c2de..0000000
> --- a/Documentation/power/00-INDEX
> +++ /dev/null
> @@ -1,44 +0,0 @@
> -00-INDEX
> -	- This file
> -apm-acpi.txt
> -	- basic info about the APM and ACPI support.
> -basic-pm-debugging.txt
> -	- Debugging suspend and resume
> -charger-manager.txt
> -	- Battery charger management.
> -admin-guide/devices.rst
> -	- How drivers interact with system-wide power management
> -drivers-testing.txt
> -	- Testing suspend and resume support in device drivers
> -freezing-of-tasks.txt
> -	- How processes and controlled during suspend
> -interface.txt
> -	- Power management user interface in /sys/power
> -opp.txt
> -	- Operating Performance Point library
> -pci.txt
> -	- How the PCI Subsystem Does Power Management
> -pm_qos_interface.txt
> -	- info on Linux PM Quality of Service interface
> -power_supply_class.txt
> -	- Tells userspace about battery, UPS, AC or DC power supply properties
> -runtime_pm.txt
> -	- Power management framework for I/O devices.
> -s2ram.txt
> -	- How to get suspend to ram working (and debug it when it isn't)
> -states.txt
> -	- System power management states
> -suspend-and-cpuhotplug.txt
> -	- Explains the interaction between Suspend-to-RAM (S3) and CPU hotplug
> -swsusp-and-swap-files.txt
> -	- Using swap files with software suspend (to disk)
> -swsusp-dmcrypt.txt
> -	- How to use dm-crypt and software suspend (to disk) together
> -swsusp.txt
> -	- Goals, implementation, and usage of software suspend (ACPI S3)
> -tricks.txt
> -	- How to trick software suspend (to disk) into working when it isn't
> -userland-swsusp.txt
> -	- Experimental implementation of software suspend in userspace
> -video.txt
> -	- Video issues during resume from suspend
> diff --git a/Documentation/powerpc/00-INDEX b/Documentation/powerpc/00-INDEX
> deleted file mode 100644
> index 9dc845c..0000000
> --- a/Documentation/powerpc/00-INDEX
> +++ /dev/null
> @@ -1,34 +0,0 @@
> -Index of files in Documentation/powerpc.  If you think something about
> -Linux/PPC needs an entry here, needs correction or you've written one
> -please mail me.
> -                                        Cort Dougan (cort@fsmlabs.com)
> -
> -00-INDEX
> -	- this file
> -bootwrapper.txt
> -	- Information on how the powerpc kernel is wrapped for boot on various
> -	  different platforms.
> -cpu_features.txt
> -	- info on how we support a variety of CPUs with minimal compile-time
> -	options.
> -cxl.txt
> -	- Overview of the CXL driver.
> -eeh-pci-error-recovery.txt
> -	- info on PCI Bus EEH Error Recovery
> -firmware-assisted-dump.txt
> -	- Documentation on the firmware assisted dump mechanism "fadump".
> -hvcs.txt
> -	- IBM "Hypervisor Virtual Console Server" Installation Guide
> -mpc52xx.txt
> -	- Linux 2.6.x on MPC52xx family
> -pmu-ebb.txt
> -	- Description of the API for using the PMU with Event Based Branches.
> -qe_firmware.txt
> -	- describes the layout of firmware binaries for the Freescale QUICC
> -	  Engine and the code that parses and uploads the microcode therein.
> -ptrace.txt
> -	- Information on the ptrace interfaces for hardware debug registers.
> -transactional_memory.txt
> -	- Overview of the Power8 transactional memory support.
> -dscr.txt
> -	- Overview DSCR (Data Stream Control Register) support.
> diff --git a/Documentation/s390/00-INDEX b/Documentation/s390/00-INDEX
> deleted file mode 100644
> index 317f037..0000000
> --- a/Documentation/s390/00-INDEX
> +++ /dev/null
> @@ -1,28 +0,0 @@
> -00-INDEX
> -	- this file.
> -3270.ChangeLog
> -	- ChangeLog for the UTS Global 3270-support patch (outdated).
> -3270.txt
> -	- how to use the IBM 3270 display system support.
> -cds.txt
> -	- s390 common device support (common I/O layer).
> -CommonIO
> -	- common I/O layer command line parameters, procfs and debugfs	entries
> -config3270.sh
> -	- example configuration for 3270 devices.
> -DASD
> -	- information on the DASD disk device driver.
> -Debugging390.txt
> -	- hints for debugging on s390 systems.
> -driver-model.txt
> -	- information on s390 devices and the driver model.
> -monreader.txt
> -	- information on accessing the z/VM monitor stream from Linux.
> -qeth.txt
> -	- HiperSockets Bridge Port Support.
> -s390dbf.txt
> -	- information on using the s390 debug feature.
> -vfio-ccw.txt
> -	  information on the vfio-ccw I/O subchannel driver.
> -zfcpdump.txt
> -	- information on the s390 SCSI dump tool.
> diff --git a/Documentation/scheduler/00-INDEX b/Documentation/scheduler/00-INDEX
> deleted file mode 100644
> index eccf7ad..0000000
> --- a/Documentation/scheduler/00-INDEX
> +++ /dev/null
> @@ -1,18 +0,0 @@
> -00-INDEX
> -	- this file.
> -sched-arch.txt
> -	- CPU Scheduler implementation hints for architecture specific code.
> -sched-bwc.txt
> -	- CFS bandwidth control overview.
> -sched-design-CFS.txt
> -	- goals, design and implementation of the Completely Fair Scheduler.
> -sched-domains.txt
> -	- information on scheduling domains.
> -sched-nice-design.txt
> -	- How and why the scheduler's nice levels are implemented.
> -sched-rt-group.txt
> -	- real-time group scheduling.
> -sched-deadline.txt
> -	- deadline scheduling.
> -sched-stats.txt
> -	- information on schedstats (Linux Scheduler Statistics).
> diff --git a/Documentation/scsi/00-INDEX b/Documentation/scsi/00-INDEX
> deleted file mode 100644
> index bb4a76f..0000000
> --- a/Documentation/scsi/00-INDEX
> +++ /dev/null
> @@ -1,108 +0,0 @@
> -00-INDEX
> -	- this file
> -53c700.txt
> -	- info on driver for 53c700 based adapters
> -BusLogic.txt
> -	- info on driver for adapters with BusLogic chips
> -ChangeLog.1992-1997
> -	- Changes to scsi files, if not listed elsewhere
> -ChangeLog.arcmsr
> -	- Changes to driver for ARECA's SATA RAID controller cards
> -ChangeLog.ips
> -	- IBM ServeRAID driver Changelog
> -ChangeLog.lpfc
> -	- Changes to lpfc driver
> -ChangeLog.megaraid
> -	- Changes to LSI megaraid controller.
> -ChangeLog.megaraid_sas
> -	- Changes to serial attached scsi version of LSI megaraid controller.
> -ChangeLog.ncr53c8xx
> -	- Changes to ncr53c8xx driver
> -ChangeLog.sym53c8xx
> -	- Changes to sym53c8xx driver
> -ChangeLog.sym53c8xx_2
> -	- Changes to second generation of sym53c8xx driver
> -FlashPoint.txt
> -	- info on driver for BusLogic FlashPoint adapters
> -LICENSE.FlashPoint
> -	- Licence of the Flashpoint driver
> -LICENSE.qla2xxx
> -	- License for QLogic Linux Fibre Channel HBA Driver firmware.
> -LICENSE.qla4xxx
> -	- License for QLogic Linux iSCSI HBA Driver.
> -Mylex.txt
> -	- info on driver for Mylex adapters
> -NinjaSCSI.txt
> -	- info on WorkBiT NinjaSCSI-32/32Bi driver
> -aacraid.txt
> -	- Driver supporting Adaptec RAID controllers
> -advansys.txt
> -	- List of Advansys Host Adapters
> -aha152x.txt
> -	- info on driver for Adaptec AHA152x based adapters
> -aic79xx.txt
> -	- Adaptec Ultra320 SCSI host adapters
> -aic7xxx.txt
> -	- info on driver for Adaptec controllers
> -arcmsr_spec.txt
> -	- ARECA FIRMWARE SPEC (for IOP331 adapter)
> -bfa.txt
> -	- Brocade FC/FCOE adapter driver.
> -bnx2fc.txt
> -	- FCoE hardware offload for Broadcom network interfaces.
> -cxgb3i.txt
> -	- Chelsio iSCSI Linux Driver
> -dc395x.txt
> -	- README file for the dc395x SCSI driver
> -dpti.txt
> -	- info on driver for DPT SmartRAID and Adaptec I2O RAID based adapters
> -dtc3x80.txt
> -	- info on driver for DTC 2x80 based adapters
> -g_NCR5380.txt
> -	- info on driver for NCR5380 and NCR53c400 based adapters
> -hpsa.txt
> -	- HP Smart Array Controller SCSI driver.
> -hptiop.txt
> -	- HIGHPOINT ROCKETRAID 3xxx RAID DRIVER
> -libsas.txt
> -	- Serial Attached SCSI management layer.
> -link_power_management_policy.txt
> -	- Link power management options.
> -lpfc.txt
> -	- LPFC driver release notes
> -megaraid.txt
> -	- Common Management Module, shared code handling ioctls for LSI drivers
> -ncr53c8xx.txt
> -	- info on driver for NCR53c8xx based adapters
> -osd.txt
> -	Object-Based Storage Device, command set introduction.
> -osst.txt
> -	- info on driver for OnStream SC-x0 SCSI tape
> -ppa.txt
> -	- info on driver for IOmega zip drive
> -qlogicfas.txt
> -	- info on driver for QLogic FASxxx based adapters
> -scsi-changer.txt
> -	- README for the SCSI media changer driver
> -scsi-generic.txt
> -	- info on the sg driver for generic (non-disk/CD/tape) SCSI devices.
> -scsi-parameters.txt
> -	- List of SCSI-parameters to pass to the kernel at module load-time.
> -scsi.txt
> -	- short blurb on using SCSI support as a module.
> -scsi_mid_low_api.txt
> -	- info on API between SCSI layer and low level drivers
> -scsi_eh.txt
> -	- info on SCSI midlayer error handling infrastructure
> -scsi_fc_transport.txt
> -	- SCSI Fiber Channel Tansport
> -st.txt
> -	- info on scsi tape driver
> -sym53c500_cs.txt
> -	- info on PCMCIA driver for Symbios Logic 53c500 based adapters
> -sym53c8xx_2.txt
> -	- info on second generation driver for sym53c8xx based adapters
> -tmscsim.txt
> -	- info on driver for AM53c974 based adapters
> -ufs.txt
> -	- info on Universal Flash Storage(UFS) and UFS host controller driver.
> diff --git a/Documentation/serial/00-INDEX b/Documentation/serial/00-INDEX
> deleted file mode 100644
> index 8021a9f..0000000
> --- a/Documentation/serial/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- this file.
> -README.cycladesZ
> -	- info on Cyclades-Z firmware loading.
> -driver
> -	- intro to the low level serial driver.
> -moxa-smartio
> -	- file with info on installing/using Moxa multiport serial driver.
> -n_gsm.txt
> -	- GSM 0710 tty multiplexer howto.
> -rocket.txt
> -	- info on the Comtrol RocketPort multiport serial driver.
> -serial-rs485.txt
> -	- info about RS485 structures and support in the kernel.
> -tty.txt
> -	- guide to the locking policies of the tty layer.
> diff --git a/Documentation/spi/00-INDEX b/Documentation/spi/00-INDEX
> deleted file mode 100644
> index 8e4bb17..0000000
> --- a/Documentation/spi/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- this file.
> -butterfly
> -	- AVR Butterfly SPI driver overview and pin configuration.
> -ep93xx_spi
> -	- Basic EP93xx SPI driver configuration.
> -pxa2xx
> -	- PXA2xx SPI master controller build by spi_message fifo wq
> -spidev
> -	- Intro to the userspace API for spi devices
> -spi-lm70llp
> -	- Connecting an LM70-LLP sensor to the kernel via the SPI subsys.
> -spi-sc18is602
> -	- NXP SC18IS602/603 I2C-bus to SPI bridge
> -spi-summary
> -	- (Linux) SPI overview. If unsure about SPI or SPI in Linux, start here.
> diff --git a/Documentation/sysctl/00-INDEX b/Documentation/sysctl/00-INDEX
> deleted file mode 100644
> index 8cf5d49..0000000
> --- a/Documentation/sysctl/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- this file.
> -README
> -	- general information about /proc/sys/ sysctl files.
> -abi.txt
> -	- documentation for /proc/sys/abi/*.
> -fs.txt
> -	- documentation for /proc/sys/fs/*.
> -kernel.txt
> -	- documentation for /proc/sys/kernel/*.
> -net.txt
> -	- documentation for /proc/sys/net/*.
> -sunrpc.txt
> -	- documentation for /proc/sys/sunrpc/*.
> -vm.txt
> -	- documentation for /proc/sys/vm/*.
> diff --git a/Documentation/timers/00-INDEX b/Documentation/timers/00-INDEX
> deleted file mode 100644
> index 3be05fe..0000000
> --- a/Documentation/timers/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- this file
> -highres.txt
> -	- High resolution timers and dynamic ticks design notes
> -hpet.txt
> -	- High Precision Event Timer Driver for Linux
> -hrtimers.txt
> -	- subsystem for high-resolution kernel timers
> -NO_HZ.txt
> -	- Summary of the different methods for the scheduler clock-interrupts management.
> -timekeeping.txt
> -	- Clock sources, clock events, sched_clock() and delay timer notes
> -timers-howto.txt
> -	- how to insert delays in the kernel the right (tm) way.
> -timer_stats.txt
> -	- timer usage statistics
> diff --git a/Documentation/virtual/00-INDEX b/Documentation/virtual/00-INDEX
> deleted file mode 100644
> index af0d239..0000000
> --- a/Documentation/virtual/00-INDEX
> +++ /dev/null
> @@ -1,11 +0,0 @@
> -Virtualization support in the Linux kernel.
> -
> -00-INDEX
> -	- this file.
> -
> -paravirt_ops.txt
> -	- Describes the Linux kernel pv_ops to support different hypervisors
> -kvm/
> -	- Kernel Virtual Machine.  See also http://linux-kvm.org
> -uml/
> -	- User Mode Linux, builds/runs Linux kernel as a userspace program.
> diff --git a/Documentation/virtual/kvm/00-INDEX b/Documentation/virtual/kvm/00-INDEX
> deleted file mode 100644
> index 3492458..0000000
> --- a/Documentation/virtual/kvm/00-INDEX
> +++ /dev/null
> @@ -1,35 +0,0 @@
> -00-INDEX
> -	- this file.
> -amd-memory-encryption.rst
> -	- notes on AMD Secure Encrypted Virtualization feature and SEV firmware
> -	  command description
> -api.txt
> -	- KVM userspace API.
> -arm
> -	- internal ABI between the kernel and HYP (for arm/arm64)
> -cpuid.txt
> -	- KVM-specific cpuid leaves (x86).
> -devices/
> -	- KVM_CAP_DEVICE_CTRL userspace API.
> -halt-polling.txt
> -	- notes on halt-polling
> -hypercalls.txt
> -	- KVM hypercalls.
> -locking.txt
> -	- notes on KVM locks.
> -mmu.txt
> -	- the x86 kvm shadow mmu.
> -msr.txt
> -	- KVM-specific MSRs (x86).
> -nested-vmx.txt
> -	- notes on nested virtualization for Intel x86 processors.
> -ppc-pv.txt
> -	- the paravirtualization interface on PowerPC.
> -review-checklist.txt
> -	- review checklist for KVM patches.
> -s390-diag.txt
> -	- Diagnose hypercall description (for IBM S/390)
> -timekeeping.txt
> -	- timekeeping virtualization for x86-based architectures.
> -vcpu-requests.rst
> -	- internal VCPU request API
> diff --git a/Documentation/vm/00-INDEX b/Documentation/vm/00-INDEX
> deleted file mode 100644
> index f4a4f3e..0000000
> --- a/Documentation/vm/00-INDEX
> +++ /dev/null
> @@ -1,50 +0,0 @@
> -00-INDEX
> -	- this file.
> -active_mm.rst
> -	- An explanation from Linus about tsk->active_mm vs tsk->mm.
> -balance.rst
> -	- various information on memory balancing.
> -cleancache.rst
> -	- Intro to cleancache and page-granularity victim cache.
> -frontswap.rst
> -	- Outline frontswap, part of the transcendent memory frontend.
> -highmem.rst
> -	- Outline of highmem and common issues.
> -hmm.rst
> -	- Documentation of heterogeneous memory management
> -hugetlbfs_reserv.rst
> -	- A brief overview of hugetlbfs reservation design/implementation.
> -hwpoison.rst
> -	- explains what hwpoison is
> -ksm.rst
> -	- how to use the Kernel Samepage Merging feature.
> -mmu_notifier.rst
> -	- a note about clearing pte/pmd and mmu notifications
> -numa.rst
> -	- information about NUMA specific code in the Linux vm.
> -overcommit-accounting.rst
> -	- description of the Linux kernels overcommit handling modes.
> -page_frags.rst
> -	- description of page fragments allocator
> -page_migration.rst
> -	- description of page migration in NUMA systems.
> -page_owner.rst
> -	- tracking about who allocated each page
> -remap_file_pages.rst
> -	- a note about remap_file_pages() system call
> -slub.rst
> -	- a short users guide for SLUB.
> -split_page_table_lock.rst
> -	- Separate per-table lock to improve scalability of the old page_table_lock.
> -swap_numa.rst
> -	- automatic binding of swap device to numa node
> -transhuge.rst
> -	- Transparent Hugepage Support, alternative way of using hugepages.
> -unevictable-lru.rst
> -	- Unevictable LRU infrastructure
> -z3fold.txt
> -	- outline of z3fold allocator for storing compressed pages
> -zsmalloc.rst
> -	- outline of zsmalloc allocator for storing compressed pages
> -zswap.rst
> -	- Intro to compressed cache for swap pages
> diff --git a/Documentation/w1/00-INDEX b/Documentation/w1/00-INDEX
> deleted file mode 100644
> index cb49802..0000000
> --- a/Documentation/w1/00-INDEX
> +++ /dev/null
> @@ -1,10 +0,0 @@
> -00-INDEX
> -	- This file
> -slaves/
> -	- Drivers that provide support for specific family codes.
> -masters/
> -	- Individual chips providing 1-wire busses.
> -w1.generic
> -	- The 1-wire (w1) bus
> -w1.netlink
> -	- Userspace communication protocol over connector [1].
> diff --git a/Documentation/w1/masters/00-INDEX b/Documentation/w1/masters/00-INDEX
> deleted file mode 100644
> index 8330cf9..0000000
> --- a/Documentation/w1/masters/00-INDEX
> +++ /dev/null
> @@ -1,12 +0,0 @@
> -00-INDEX
> -	- This file
> -ds2482
> -	- The Maxim/Dallas Semiconductor DS2482 provides 1-wire busses.
> -ds2490
> -	- The Maxim/Dallas Semiconductor DS2490 builds USB <-> W1 bridges.
> -mxc-w1
> -	- W1 master controller driver found on Freescale MX2/MX3 SoCs
> -omap-hdq
> -	- HDQ/1-wire module of TI OMAP 2430/3430.
> -w1-gpio
> -	- GPIO 1-wire bus master driver.
> diff --git a/Documentation/w1/slaves/00-INDEX b/Documentation/w1/slaves/00-INDEX
> deleted file mode 100644
> index 68946f8..0000000
> --- a/Documentation/w1/slaves/00-INDEX
> +++ /dev/null
> @@ -1,14 +0,0 @@
> -00-INDEX
> -	- This file
> -w1_therm
> -	- The Maxim/Dallas Semiconductor ds18*20 temperature sensor.
> -w1_ds2413
> -	- The Maxim/Dallas Semiconductor ds2413 dual channel addressable switch.
> -w1_ds2423
> -	- The Maxim/Dallas Semiconductor ds2423 counter device.
> -w1_ds2438
> -	- The Maxim/Dallas Semiconductor ds2438 smart battery monitor.
> -w1_ds28e04
> -	- The Maxim/Dallas Semiconductor ds28e04 eeprom.
> -w1_ds28e17
> -	- The Maxim/Dallas Semiconductor ds28e17 1-Wire-to-I2C Master Bridge.
> diff --git a/Documentation/x86/00-INDEX b/Documentation/x86/00-INDEX
> deleted file mode 100644
> index 3bb2ee3..0000000
> --- a/Documentation/x86/00-INDEX
> +++ /dev/null
> @@ -1,20 +0,0 @@
> -00-INDEX
> -	- this file
> -boot.txt
> -	- List of boot protocol versions
> -earlyprintk.txt
> -	- Using earlyprintk with a USB2 debug port key.
> -entry_64.txt
> -	- Describe (some of the) kernel entry points for x86.
> -exception-tables.txt
> -	- why and how Linux kernel uses exception tables on x86
> -microcode.txt
> -	- How to load microcode from an initrd-CPIO archive early to fix CPU issues.
> -mtrr.txt
> -	- how to use x86 Memory Type Range Registers to increase performance
> -pat.txt
> -	- Page Attribute Table intro and API
> -usb-legacy-support.txt
> -	- how to fix/avoid quirks when using emulated PS/2 mouse/keyboard.
> -zero-page.txt
> -	- layout of the first page of memory.
> diff --git a/Documentation/x86/x86_64/00-INDEX b/Documentation/x86/x86_64/00-INDEX
> deleted file mode 100644
> index 92fc20a..0000000
> --- a/Documentation/x86/x86_64/00-INDEX
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -00-INDEX
> -	- This file
> -boot-options.txt
> -	- AMD64-specific boot options.
> -cpu-hotplug-spec
> -	- Firmware support for CPU hotplug under Linux/x86-64
> -fake-numa-for-cpusets
> -	- Using numa=fake and CPUSets for Resource Management
> -kernel-stacks
> -	- Context-specific per-processor interrupt stacks.
> -machinecheck
> -	- Configurable sysfs parameters for the x86-64 machine check code.
> -mm.txt
> -	- Memory layout of x86-64 (4 level page tables, 46 bits physical).
> -uefi.txt
> -	- Booting Linux via Unified Extensible Firmware Interface.
> diff --git a/README b/README
> index 2c927cc..669ac7c 100644
> --- a/README
> +++ b/README
> @@ -12,7 +12,6 @@ In order to build the documentation, use ``make htmldocs`` or
> 
>  There are various text files in the Documentation/ subdirectory,
>  several of them using the Restructured Text markup notation.
> -See Documentation/00-INDEX for a list of what is contained in each file.
> 
>  Please read the Documentation/process/changes.rst file, as it contains the
>  requirements for building and running the kernel, and information about
> diff --git a/scripts/check_00index.sh b/scripts/check_00index.sh
> deleted file mode 100755
> index aa47f592..0000000
> --- a/scripts/check_00index.sh
> +++ /dev/null
> @@ -1,67 +0,0 @@
> -#!/bin/bash
> -# SPDX-License-Identifier: GPL-2.0
> -
> -cd Documentation/
> -
> -# Check entries that should be removed
> -
> -obsolete=""
> -for i in $(tail -n +12 00-INDEX |grep -E '^[a-zA-Z0-9]+'); do
> -	if [ ! -e $i ]; then
> -		obsolete="$obsolete $i"
> -	fi
> -done
> -
> -# Check directory entries that should be added
> -search=""
> -dir=""
> -for i in $(find . -maxdepth 1 -type d); do
> -	if [ "$i" != "." ]; then
> -		new=$(echo $i|perl -ne 's,./(.*),$1/,; print $_')
> -		search="$search $new"
> -	fi
> -done
> -
> -for i in $search; do
> -	if [ "$(grep -P "^$i" 00-INDEX)" == "" ]; then
> -		dir="$dir $i"
> -	fi
> -done
> -
> -# Check file entries that should be added
> -search=""
> -file=""
> -for i in $(find . -maxdepth 1 -type f); do
> -	if [ "$i" != "./.gitignore" ]; then
> -		new=$(echo $i|perl -ne 's,./(.*),$1,; print $_')
> -		search="$search $new"
> -	fi
> -done
> -
> -for i in $search; do
> -	if [ "$(grep -P "^$i\$" 00-INDEX)" == "" ]; then
> -		file="$file $i"
> -	fi
> -done
> -
> -# Output its findings
> -
> -echo -e "Documentation/00-INDEX check results:\n"
> -
> -if [ "$obsolete" != "" ]; then
> -	echo -e "- Should remove those entries:\n\t$obsolete\n"
> -else
> -	echo -e "- No obsolete entries\n"
> -fi
> -
> -if [ "$dir" != "" ]; then
> -	echo -e "- Should document those directories:\n\t$dir\n"
> -else
> -	echo -e "- No new directories to add\n"
> -fi
> -
> -if [ "$file" != "" ]; then
> -	echo -e "- Should document those files:\n\t$file"
> -else
> -	echo "- No new files to add"
> -fi
> -- 
> 2.7.4
> 

-- 
Sincerely yours,
Mike.



From - Thu Nov 08 21:41:54 2018
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Paul Moore <paul@paul-moore.com>
Newsgroups: gmane.linux.kernel,gmane.linux.documentation,gmane.linux.kernel.pci,gmane.linux.drivers.devicetree,gmane.comp.video.dri.devel,gmane.linux.kernel.gpio,gmane.linux.ide,gmane.linux.network,gmane.linux.kbuild.devel,gmane.linux.ports.mips.general,gmane.linux.kernel.lsm,gmane.linux.ports.parisc,gmane.linux.power-management.general,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.spi.devel,gmane.comp.emulators.kvm.devel
Subject: Re: [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
Date: Wed, 5 Sep 2018 07:42:04 -0400
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On Mon, Sep 3, 2018 at 6:15 PM Henrik Austad <henrik@austad.us> wrote:
> This is a respin with a wider audience (all that get_maintainer returned)
> and I know this spams a *lot* of people. Not sure what would be the correct
> way, so my apologies for ruining your inbox.
>
> The 00-INDEX files are supposed to give a summary of all files present
> in a directory, but these files are horribly out of date and their
> usefulness is brought into question. Often a simple "ls" would reveal
> the same information as the filenames are generally quite descriptive as
> a short introduction to what the file covers (it should not surprise
> anyone what Documentation/sched/sched-design-CFS.txt covers)
>
> A few years back it was mentioned that these files were no longer really
> needed, and they have since then grown further out of date, so perhaps
> it is time to just throw them out.
>
> A short status yields the following _outdated_ 00-INDEX files, first
> counter is files listed in 00-INDEX but missing in the directory, last
> is files present but not listed in 00-INDEX.
>
> List of outdated 00-INDEX:
> Documentation: (4/10)
> Documentation/sysctl: (0/1)
> Documentation/timers: (1/0)
> Documentation/blockdev: (3/1)
> Documentation/w1/slaves: (0/1)
> Documentation/locking: (0/1)
> Documentation/devicetree: (0/5)
> Documentation/power: (1/1)
> Documentation/powerpc: (0/5)
> Documentation/arm: (1/0)
> Documentation/x86: (0/9)
> Documentation/x86/x86_64: (1/1)
> Documentation/scsi: (4/4)
> Documentation/filesystems: (2/9)
> Documentation/filesystems/nfs: (0/2)
> Documentation/cgroup-v1: (0/2)
> Documentation/kbuild: (0/4)
> Documentation/spi: (1/0)
> Documentation/virtual/kvm: (1/0)
> Documentation/scheduler: (0/2)
> Documentation/fb: (0/1)
> Documentation/block: (0/1)
> Documentation/networking: (6/37)
> Documentation/vm: (1/3)
>
> Then there are 364 subdirectories in Documentation/ with several files that
> are missing 00-INDEX alltogether (and another 120 with a single file and no
> 00-INDEX).
>
> I don't really have an opinion to whether or not we /should/ have 00-INDEX,
> but the above 00-INDEX should either be removed or be kept up to date. If
> we should keep the files, I can try to keep them updated, but I rather not
> if we just want to delete them anyway.
>
> As a starting point, remove all index-files and references to 00-INDEX and
> see where the discussion is going.
>
> Again, sorry for the insanely wide distribution.
>
> Signed-off-by: Henrik Austad <henrik@austad.us>
...
> Signed-off-by: Henrik Austad <haustad@cisco.com>
> ---
>  Documentation/00-INDEX                  | 428 --------------------------------
...

Looks reasonable to me, you can add my ACK for the NetLabel bits.

Acked-by: Paul Moore <paul@paul-moore.com>

-- 
paul moore
www.paul-moore.com


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Subject: Re: [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
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Subject: Re: [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
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Subject: Re: [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
Date: Thu, 6 Sep 2018 23:39:42 +0200
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups: gmane.comp.video.dri.devel,gmane.linux.ports.mips.general,gmane.comp.emulators.kvm.devel,gmane.linux.documentation,gmane.linux.drivers.devicetree,gmane.linux.kernel.gpio,gmane.linux.kbuild.devel,gmane.linux.ports.parisc,gmane.linux.ide,gmane.linux.kernel.pci,gmane.linux.network,gmane.linux.power-management.general,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.linux.kernel.lsm,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
Date: Fri, 7 Sep 2018 09:21:43 +0200
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Cc: Mark Rutland <mark.rutland@arm.com>,
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To: Daniel Vetter <daniel@ffwll.ch>
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From - Thu Nov 08 21:41:55 2018
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From: Jonathan Corbet <corbet@lwn.net>
Newsgroups: gmane.comp.video.dri.devel,gmane.linux.ports.mips.general,gmane.comp.emulators.kvm.devel,gmane.linux.documentation,gmane.linux.kernel.lsm,gmane.linux.kernel.gpio,gmane.linux.kbuild.devel,gmane.linux.ports.parisc,gmane.linux.ide,gmane.linux.kernel.pci,gmane.linux.power-management.general,gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.linux.network,gmane.linux.ports.ppc64.devel,gmane.linux.drivers.devicetree
Subject: Re: [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
Date: Sun, 9 Sep 2018 15:12:37 -0600
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Cc: Mark Rutland <mark.rutland@arm.com>, linux-mips@linux-mips.org,
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.year-2038,gmane.linux.ports.parisc
Subject: [RFC] parisc64: change __kernel_suseconds_t to match glibc
Date: Thu, 13 Sep 2018 17:59:50 +0200
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Xref: news.gmane.org gmane.linux.kernel:2870112 gmane.linux.kernel.year-2038:3305 gmane.linux.ports.parisc:28935
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2870112>

There are only two 64-bit architecture ports that have a 32-bit
suseconds_t: sparc64 and parisc64. I've encountered a number of problems
with this, while trying to get a proper 64-bit time_t working on 32-bit
architectures. Having a 32-bit suseconds_t combined with a 64-bit time_t
means that we get extra padding in data structures that may leak kernel
stack data to user space, and it breaks all code that assumes that
timespec and timeval have the same layout.

While we can't change sparc64, it seems that glibc on parisc64 has always
set suseconds_t to 'long', and the current version would give incorrect
results for gettimeofday() and many other interfaces: timestamps passed
from user space into the kernel result in tv_usec being always zero
(the lower bits contain the intended value but are ignored) while data
passed from the kernel to user space contains either zeroes or random
data in tv_usec.

Based on that, it seems best to change the user API in the kernel in
an incompatible way to match what glibc expects.

Note that the distros I could find (gentoo and debian) all just
have 32-bit user space, which does not suffer from this problem.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/parisc/include/uapi/asm/posix_types.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/parisc/include/uapi/asm/posix_types.h b/arch/parisc/include/uapi/asm/posix_types.h
index 2785632c85e7..8dce56f5dcee 100644
--- a/arch/parisc/include/uapi/asm/posix_types.h
+++ b/arch/parisc/include/uapi/asm/posix_types.h
@@ -16,9 +16,6 @@ typedef unsigned short		__kernel_mode_t;
 typedef unsigned short		__kernel_ipc_pid_t;
 #define __kernel_ipc_pid_t __kernel_ipc_pid_t
 
-typedef int			__kernel_suseconds_t;
-#define __kernel_suseconds_t __kernel_suseconds_t
-
 typedef long long		__kernel_off64_t;
 typedef unsigned long long	__kernel_ino64_t;
 
-- 
2.18.0



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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH 0/4] System call table generation support
Date: Fri, 14 Sep 2018 13:56:39 +0530
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The purpose of this patch series is:
1. We can easily add/modify/delete system call by changing entry 
in syscall.tbl file. No need to manually edit many files.

2. It is easy to unify the system call implementation across all 
the architectures. 

The system call tables are in different format in all architecture 
and it will be difficult to manually add or modify the system calls
in the respective files manually. To make it easy by keeping a script 
and which'll generate the header file and syscall table file so this 
change will unify them across all architectures.

syscall.tbl contains the list of available system calls along with 
system call number and corresponding entry point. Add a new system 
call in this architecture will be possible by adding new entry in 
the syscall.tbl file.

Adding a new table entry consisting of:
        - System call number.
        - ABI.
        - System call name.
        - Entry point name.
        - Compat entry name, if required.

ARM, s390 and x86 architecuture does exist the similar support. I 
leverage their implementation to come up with a generic solution.

I have done the same support for work for alpha, m68k, microblaze, 
ia64, mips, powerpc, sh, sparc, and xtensa. But I started sending 
the patch for one architecuture for review. Below mentioned git
repository contains more details.
Git repo:- https://github.com/frzkhn/system_call_table_generator/

Finally, this is the ground work for solving the Y2038 issue. We 
need to add/change two dozen of system calls to solve Y2038 issue. 
So this patch series will help to easily modify from existing 
system call to Y2038 compatible system calls.

I started working system call table generation on 4.17-rc1. I used 
marcin's script - https://github.com/hrw/syscalls-table to generate 
the syscall.tbl file. And this will be the input to the system call 
table generation script. But there are couple system call got add 
in the latest rc release. If run Marcin's script on latest release,
It will generate a new syscall.tbl. But I still use the old file - 
syscall.tbl and once all review got over I'll update syscall.tbl 
alone w.r.to the tip of the kernel. The impact of this thing, few 
of the system call won't work. 

Firoz Khan (4):
  parisc: Move __IGNORE* entries to non uapi header
  parisc: Replace __NR_Linux_syscalls macro with __NR_syscalls
  parisc: Add system call table generation support
  parisc: uapi header and system call table file generation

 arch/parisc/Makefile                       |   4 +
 arch/parisc/include/asm/Kbuild             |   3 +
 arch/parisc/include/asm/unistd.h           |   8 +
 arch/parisc/include/uapi/asm/Kbuild        |   2 +
 arch/parisc/include/uapi/asm/unistd.h      | 377 +----------------------
 arch/parisc/kernel/syscall.S               |  14 +-
 arch/parisc/kernel/syscall_table.S         | 459 -----------------------------
 arch/parisc/kernel/syscall_table_32.S      |  11 +
 arch/parisc/kernel/syscall_table_64.S      |  19 ++
 arch/parisc/kernel/syscalls/Makefile       |  52 ++++
 arch/parisc/kernel/syscalls/syscall_32.tbl | 358 ++++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscall_64.tbl | 357 ++++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscallhdr.sh  |  38 +++
 arch/parisc/kernel/syscalls/syscalltbl.sh  |  36 +++
 14 files changed, 896 insertions(+), 842 deletions(-)
 delete mode 100644 arch/parisc/kernel/syscall_table.S
 create mode 100644 arch/parisc/kernel/syscall_table_32.S
 create mode 100644 arch/parisc/kernel/syscall_table_64.S
 create mode 100644 arch/parisc/kernel/syscalls/Makefile
 create mode 100644 arch/parisc/kernel/syscalls/syscall_32.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscall_64.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
 create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh

-- 
1.9.1



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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH 1/4] parisc: Move __IGNORE* entries to non uapi header
Date: Fri, 14 Sep 2018 13:56:40 +0530
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All the  __IGNORE* entries are resides in the uapi header
file and it is not used by any user space applications.

One of the patch in this patch series will generate the
uapi header file and system call table file. So if we move
all the __IGNORE* entries to non uapi header, it will simplify
the uapi header and system call table file generation script.

It is correct to keep __IGNORE* entry in non uapi header
asm/unistd.h while uapi/asm/unistd.h must hold information
only useful for user space applications.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/include/asm/unistd.h      | 6 ++++++
 arch/parisc/include/uapi/asm/unistd.h | 7 -------
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 3d507d0..fc71edf 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -165,6 +165,12 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)	\
 #define __ARCH_WANT_SYS_CLONE
 #define __ARCH_WANT_COMPAT_SYS_SENDFILE
 
+#define __IGNORE_select		/* newselect */
+#define __IGNORE_fadvise64	/* fadvise64_64 */
+#define __IGNORE_pkey_mprotect
+#define __IGNORE_pkey_alloc
+#define __IGNORE_pkey_free
+
 #endif /* __ASSEMBLY__ */
 
 #undef STR
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index dc77c5a..bb52e12 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -368,13 +368,6 @@
 
 #define __NR_Linux_syscalls	(__NR_io_pgetevents + 1)
 
-
-#define __IGNORE_select		/* newselect */
-#define __IGNORE_fadvise64	/* fadvise64_64 */
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
-
 #define LINUX_GATEWAY_ADDR      0x100
 
 #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */
-- 
1.9.1



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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH 2/4] parisc: Replace __NR_Linux_syscalls macro with __NR_syscalls
Date: Fri, 14 Sep 2018 13:56:41 +0530
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        Helge Deller <deller@gmx.de>,
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__NR_Linux_syscalls macro holds the number of system call exist in
PARISC architecture. This macro is currently the part of uapi/asm/
unistd.h file. We have to change the value of __NR_Linux_syscalls,
if we add or delete a system call.

One of the patch in this patch series has a script which will generate
a uapi header based on syscall.tbl file. The syscall.tbl file contains
the number of system call information. So we have two option to update
__NR_Linux_syscalls value.

1. Update __NR_Linux_syscalls in uapi/asm/unistd.h manually by counting
   the no.of system calls. No need to update NR_syscalls until we
   either add a new system call or delete an existing system call.

2. We can keep this feature it above mentioned script, that'll
   count the number of syscalls and keep it in a generated file.
   In this case we don't need to explicitly update __NR_Linux_syscalls
   in asm/unistd.h file.

The 2nd option will be the recommended one. For that, I moved the
__NR_Linux_syscalls macro from uapi/asm/unistd.h to asm/unistd.h. The
macro name also changed form __NR_Linux_syscalls to __NR_syscalls for
making the name convention same across all architecture. While __NR_
syscalls isn't strictly part of the uapi, having it as part of the
generated header to simplifies the implementation.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/include/asm/unistd.h      | 2 ++
 arch/parisc/include/uapi/asm/unistd.h | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index fc71edf..71417c1 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -8,6 +8,8 @@
 
 #define SYS_ify(syscall_name)   __NR_##syscall_name
 
+#define __NR_Linux_syscalls __NR_syscalls
+
 #ifndef ASM_LINE_SEP
 # define ASM_LINE_SEP ;
 #endif
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index bb52e12..7532817 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -366,7 +366,7 @@
 #define __NR_statx		(__NR_Linux + 349)
 #define __NR_io_pgetevents	(__NR_Linux + 350)
 
-#define __NR_Linux_syscalls	(__NR_io_pgetevents + 1)
+#define __NR_syscalls           (__NR_Linux + 351)
 
 #define LINUX_GATEWAY_ADDR      0x100
 
-- 
1.9.1



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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH 3/4] parisc: Add system call table generation support
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2870557>

The system call tables are in different format in all
architecture and it will be difficult to manually add or
modify the system calls in the respective files. To make
it easy by keeping a script and which'll generate the
header file and syscall table file so this change will
unify them across all architectures.

The system call table generation script is added in
syscalls directory which contain the script to generate
both uapi header file system call table generation file
and syscall_32/64.tbl file which'll be the input for the
scripts.

syscall_32/64.tbl contains the list of available system calls
along with system call number and corresponding entry point.
Add a new system call in this architecture will be possible
by adding new entry in the syscall_32/64.tbl file.

Adding a new table entry consisting of:
        - System call number.
        - ABI.
        - System call name.
        - Entry point name.
	- Compat entry name, if required.

syscallhdr.sh and syscalltbl.sh will generate uapi header-
unistd_32/64.h and syscall_table_32/64/c32.h files respectively.
File syscall_table_32/64/c32.h is included by syscall.S - the
real system call table. Both .sh files will parse the content
syscall.tbl to generate the header and table files.

ARM, s390 and x86 architecuture does have the similar support.
I leverage their implementation to come up with a generic
solution.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/kernel/syscalls/Makefile       |  52 +++++
 arch/parisc/kernel/syscalls/syscall_32.tbl | 358 +++++++++++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscall_64.tbl | 357 ++++++++++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscallhdr.sh  |  38 +++
 arch/parisc/kernel/syscalls/syscalltbl.sh  |  36 +++
 5 files changed, 841 insertions(+)
 create mode 100644 arch/parisc/kernel/syscalls/Makefile
 create mode 100644 arch/parisc/kernel/syscalls/syscall_32.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscall_64.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
 create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh

diff --git a/arch/parisc/kernel/syscalls/Makefile b/arch/parisc/kernel/syscalls/Makefile
new file mode 100644
index 0000000..12d1def
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/Makefile
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0
+out := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
+
+_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
+	  $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
+
+syscall32 := $(srctree)/$(src)/syscall_32.tbl
+syscall64 := $(srctree)/$(src)/syscall_64.tbl
+
+syshdr := $(srctree)/$(src)/syscallhdr.sh
+systbl := $(srctree)/$(src)/syscalltbl.sh
+
+quiet_cmd_syshdr = SYSHDR  $@
+      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'  \
+		   '$(syshdr_abi_$(basetarget))'          \
+		   '$(syshdr_pfx_$(basetarget))'          \
+		   '$(syshdr_offset_$(basetarget))'
+
+quiet_cmd_systbl = SYSTBL  $@
+      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'  \
+		   '$(systbl_abi_$(basetarget))'
+
+syshdr_offset_unistd_32 := __NR_Linux
+$(uapi)/unistd_32.h: $(syscall32) $(syshdr)
+	$(call if_changed,syshdr)
+
+syshdr_offset_unistd_64 := __NR_Linux
+$(uapi)/unistd_64.h: $(syscall64) $(syshdr)
+	$(call if_changed,syshdr)
+
+systbl_abi_syscall_table_32 := 32
+$(out)/syscall_table_32.h: $(syscall32) $(systbl)
+	$(call if_changed,systbl)
+
+systbl_abi_syscall_table_64 := 64
+$(out)/syscall_table_64.h: $(syscall64) $(systbl)
+	$(call if_changed,systbl)
+
+systbl_abi_syscall_table_c32 := c32
+$(out)/syscall_table_c32.h: $(syscall32) $(systbl)
+	$(call if_changed,systbl)
+
+uapisyshdr-y			+= unistd_32.h unistd_64.h
+syshdr-y			+= syscall_table_32.h syscall_table_64.h syscall_table_c32.h
+
+targets	+= $(uapisyshdr-y) $(syshdr-y)
+
+PHONY += all
+all: $(addprefix $(uapi)/,$(uapisyshdr-y))
+all: $(addprefix $(out)/,$(syshdr-y))
+	@:
diff --git a/arch/parisc/kernel/syscalls/syscall_32.tbl b/arch/parisc/kernel/syscalls/syscall_32.tbl
new file mode 100644
index 0000000..637abc8
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscall_32.tbl
@@ -0,0 +1,358 @@
+#
+# 32-bit system call numbers and entry vectors
+#
+# The format is:
+# <number> <abi> <name> <entry point> <compat entry point>
+#
+# The abi is always "common" for this file.
+#
+0       common  restart_syscall                 sys_restart_syscall             
+1       common  exit                            sys_exit                        
+2       common  fork                            sys_fork_wrapper                
+3       common  read                            sys_read                        
+4       common  write                           sys_write                       
+5       common  open                            sys_open                        compat_sys_open
+6       common  close                           sys_close                       
+7       common  waitpid                         sys_waitpid                     
+8       common  creat                           sys_creat                       
+9       common  link                            sys_link                        
+10      common  unlink                          sys_unlink                      
+11      common  execve                          sys_execve                      compat_sys_execve
+12      common  chdir                           sys_chdir                       
+13      common  time                            sys_time                        compat_sys_time
+14      common  mknod                           sys_mknod                       
+15      common  chmod                           sys_chmod                       
+16      common  lchown                          sys_lchown                      
+17      common  socket                          sys_socket                      
+18      common  stat                            sys_newstat                     compat_sys_newstat
+19      common  lseek                           sys_lseek                       compat_sys_lseek
+20      common  getpid                          sys_getpid                      
+21      common  mount                           sys_mount                       compat_sys_mount
+22      common  bind                            sys_bind                        
+23      common  setuid                          sys_setuid                      
+24      common  getuid                          sys_getuid                      
+25      common  stime                           sys_stime                       compat_sys_stime
+26      common  ptrace                          sys_ptrace                      compat_sys_ptrace
+27      common  alarm                           sys_alarm                       
+28      common  fstat                           sys_newfstat                    compat_sys_newfstat
+29      common  pause                           sys_pause                       
+30      common  utime                           sys_utime                       compat_sys_utime
+31      common  connect                         sys_connect                     
+32      common  listen                          sys_listen                      
+33      common  access                          sys_access                      
+34      common  nice                            sys_nice                        
+35      common  accept                          sys_accept                      
+36      common  sync                            sys_sync                        
+37      common  kill                            sys_kill                        
+38      common  rename                          sys_rename                      
+39      common  mkdir                           sys_mkdir                       
+40      common  rmdir                           sys_rmdir                       
+41      common  dup                             sys_dup                         
+42      common  pipe                            sys_pipe                        
+43      common  times                           sys_times                       compat_sys_times
+44      common  getsockname                     sys_getsockname                 
+45      common  brk                             sys_brk                         
+46      common  setgid                          sys_setgid                      
+47      common  getgid                          sys_getgid                      
+48      common  signal                          sys_signal                      
+49      common  geteuid                         sys_geteuid                     
+50      common  getegid                         sys_getegid                     
+51      common  acct                            sys_acct                        
+52      common  umount2                         sys_umount                      
+53      common  getpeername                     sys_getpeername                 
+54      common  ioctl                           sys_ioctl                       compat_sys_ioctl
+55      common  fcntl                           sys_fcntl                       compat_sys_fcntl
+56      common  socketpair                      sys_socketpair                  
+57      common  setpgid                         sys_setpgid                     
+58      common  send                            sys_send                        
+59      common  uname                           sys_newuname                    
+60      common  umask                           sys_umask                       
+61      common  chroot                          sys_chroot                      
+62      common  ustat                           sys_ustat                       compat_sys_ustat
+63      common  dup2                            sys_dup2                        
+64      common  getppid                         sys_getppid                     
+65      common  getpgrp                         sys_getpgrp                     
+66      common  setsid                          sys_setsid                      
+67      common  pivot_root                      sys_pivot_root                  
+68      common  sgetmask                        sys_sgetmask                    sys32_unimplemented
+69      common  ssetmask                        sys_ssetmask                    sys32_unimplemented
+70      common  setreuid                        sys_setreuid                    
+71      common  setregid                        sys_setregid                    
+72      common  mincore                         sys_mincore                     
+73      common  sigpending                      sys_sigpending                  compat_sys_sigpending
+74      common  sethostname                     sys_sethostname                 
+75      common  setrlimit                       sys_setrlimit                   compat_sys_setrlimit
+76      common  getrlimit                       sys_getrlimit                   compat_sys_getrlimit
+77      common  getrusage                       sys_getrusage                   compat_sys_getrusage
+78      common  gettimeofday                    sys_gettimeofday                compat_sys_gettimeofday
+79      common  settimeofday                    sys_settimeofday                compat_sys_settimeofday
+80      common  getgroups                       sys_getgroups                   
+81      common  setgroups                       sys_setgroups                   
+82      common  sendto                          sys_sendto                      
+83      common  symlink                         sys_symlink                     
+84      common  lstat                           sys_newlstat                    compat_sys_newlstat
+85      common  readlink                        sys_readlink                    
+86      common  uselib                          sys_ni_syscall                  
+87      common  swapon                          sys_swapon                      
+88      common  reboot                          sys_reboot                      
+89      common  mmap2                           sys_mmap2                       
+90      common  mmap                            sys_mmap                        
+91      common  munmap                          sys_munmap                      
+92      common  truncate                        sys_truncate                    compat_sys_truncate
+93      common  ftruncate                       sys_ftruncate                   compat_sys_ftruncate
+94      common  fchmod                          sys_fchmod                      
+95      common  fchown                          sys_fchown                      
+96      common  getpriority                     sys_getpriority                 
+97      common  setpriority                     sys_setpriority                 
+98      common  recv                            sys_recv                        
+99      common  statfs                          sys_statfs                      compat_sys_statfs
+100     common  fstatfs                         sys_fstatfs                     compat_sys_fstatfs
+101     common  stat64                          sys_stat64                      
+102     common  socketcall                      sys_ni_syscall                  
+103     common  syslog                          sys_syslog                      
+104     common  setitimer                       sys_setitimer                   compat_sys_setitimer
+105     common  getitimer                       sys_getitimer                   compat_sys_getitimer
+106     common  capget                          sys_capget                      
+107     common  capset                          sys_capset                      
+108     common  pread64                         sys_pread64                     parisc_pread64
+109     common  pwrite64                        sys_pwrite64                    parisc_pwrite64
+110     common  getcwd                          sys_getcwd                      
+111     common  vhangup                         sys_vhangup                     
+112     common  fstat64                         sys_fstat64                     
+113     common  vfork                           sys_vfork_wrapper               
+114     common  wait4                           sys_wait4                       compat_sys_wait4
+115     common  swapoff                         sys_swapoff                     
+116     common  sysinfo                         sys_sysinfo                     compat_sys_sysinfo
+117     common  shutdown                        sys_shutdown                    
+118     common  fsync                           sys_fsync                       
+119     common  madvise                         sys_madvise                     
+120     common  clone                           sys_clone_wrapper               
+121     common  setdomainname                   sys_setdomainname               
+122     common  sendfile                        sys_sendfile                    compat_sys_sendfile
+123     common  recvfrom                        sys_recvfrom                    
+124     common  adjtimex                        sys_adjtimex                    compat_sys_adjtimex
+125     common  mprotect                        sys_mprotect                    
+126     common  sigprocmask                     sys_sigprocmask                 compat_sys_sigprocmask
+127     common  create_module                   sys_ni_syscall                  
+128     common  init_module                     sys_init_module                 
+129     common  delete_module                   sys_delete_module               
+#130     common  get_kernel_syms                 sys_get_kernel_syms             
+131     common  quotactl                        sys_quotactl                    
+132     common  getpgid                         sys_getpgid                     
+133     common  fchdir                          sys_fchdir                      
+134     common  bdflush                         sys_bdflush                     
+135     common  sysfs                           sys_sysfs                       
+136     common  personality                     sys_personality                 parisc_personality
+137     common  afs_syscall                     sys_ni_syscall                  
+138     common  setfsuid                        sys_setfsuid                    
+139     common  setfsgid                        sys_setfsgid                    
+140     common  _llseek                         sys_llseek                      
+141     common  getdents                        sys_getdents                    compat_sys_getdents
+142     common  _newselect                      sys_select                      compat_sys_select
+143     common  flock                           sys_flock                       
+144     common  msync                           sys_msync                       
+145     common  readv                           sys_readv                       compat_sys_readv
+146     common  writev                          sys_writev                      compat_sys_writev
+147     common  getsid                          sys_getsid                      
+148     common  fdatasync                       sys_fdatasync                   
+149     common  _sysctl                         sys_sysctl                      compat_sys_sysctl
+150     common  mlock                           sys_mlock                       
+151     common  munlock                         sys_munlock                     
+152     common  mlockall                        sys_mlockall                    
+153     common  munlockall                      sys_munlockall                  
+154     common  sched_setparam                  sys_sched_setparam              
+155     common  sched_getparam                  sys_sched_getparam              
+156     common  sched_setscheduler              sys_sched_setscheduler          
+157     common  sched_getscheduler              sys_sched_getscheduler          
+158     common  sched_yield                     sys_sched_yield                 
+159     common  sched_get_priority_max          sys_sched_get_priority_max      
+160     common  sched_get_priority_min          sys_sched_get_priority_min      
+161     common  sched_rr_get_interval           sys_sched_rr_get_interval       compat_sys_sched_rr_get_interval
+162     common  nanosleep                       sys_nanosleep                   compat_sys_nanosleep
+163     common  mremap                          sys_mremap                      
+164     common  setresuid                       sys_setresuid                   
+165     common  getresuid                       sys_getresuid                   
+166     common  sigaltstack                     sys_sigaltstack                 compat_sys_sigaltstack
+167     common  query_module                    sys_ni_syscall                  
+168     common  poll                            sys_poll                        
+169     common  nfsservctl                      sys_ni_syscall                  
+170     common  setresgid                       sys_setresgid                   
+171     common  getresgid                       sys_getresgid                   
+172     common  prctl                           sys_prctl                       
+173     common  rt_sigreturn                    sys_rt_sigreturn                
+174     common  rt_sigaction                    sys_rt_sigaction                compat_sys_rt_sigaction
+175     common  rt_sigprocmask                  sys_rt_sigprocmask              compat_sys_rt_sigprocmask
+176     common  rt_sigpending                   sys_rt_sigpending               compat_sys_rt_sigpending
+177     common  rt_sigtimedwait                 sys_rt_sigtimedwait             compat_sys_rt_sigtimedwait
+178     common  rt_sigqueueinfo                 sys_rt_sigqueueinfo             compat_sys_rt_sigqueueinfo
+179     common  rt_sigsuspend                   sys_rt_sigsuspend               compat_sys_rt_sigsuspend
+180     common  chown                           sys_chown                       
+181     common  setsockopt                      sys_setsockopt                  compat_sys_setsockopt
+182     common  getsockopt                      sys_getsockopt                  compat_sys_getsockopt
+183     common  sendmsg                         sys_sendmsg                     compat_sys_sendmsg
+184     common  recvmsg                         sys_recvmsg                     compat_sys_recvmsg
+185     common  semop                           sys_semop                       
+186     common  semget                          sys_semget                      
+187     common  semctl                          sys_semctl                      compat_sys_semctl
+188     common  msgsnd                          sys_msgsnd                      compat_sys_msgsnd
+189     common  msgrcv                          sys_msgrcv                      compat_sys_msgrcv
+190     common  msgget                          sys_msgget                      
+191     common  msgctl                          sys_msgctl                      compat_sys_msgctl
+192     common  shmat                           sys_shmat                       compat_sys_shmat
+193     common  shmdt                           sys_shmdt                       
+194     common  shmget                          sys_shmget                      
+195     common  shmctl                          sys_shmctl                      compat_sys_shmctl
+196     common  getpmsg                         sys_ni_syscall                  
+197     common  putpmsg                         sys_ni_syscall                  
+198     common  lstat64                         sys_lstat64                     
+199     common  truncate64                      sys_truncate64                  parisc_truncate64
+200     common  ftruncate64                     sys_ftruncate64                 parisc_ftruncate64
+201     common  getdents64                      sys_getdents64                  
+202     common  fcntl64                         sys_fcntl64                     compat_sys_fcntl64
+203     common  attrctl                         sys_ni_syscall                  
+204     common  acl_get                         sys_ni_syscall                  
+205     common  acl_set                         sys_ni_syscall                  
+206     common  gettid                          sys_gettid                      
+207     common  readahead                       sys_readahead                   parisc_readahead
+208     common  tkill                           sys_tkill                       
+209     common  sendfile64                      sys_sendfile64                  compat_sys_sendfile64
+210     common  futex                           sys_futex                       compat_sys_futex
+211     common  sched_setaffinity               sys_sched_setaffinity           compat_sys_sched_setaffinity
+212     common  sched_getaffinity               sys_sched_getaffinity           compat_sys_sched_getaffinity
+213     common  set_thread_area                 sys_ni_syscall                  
+214     common  get_thread_area                 sys_ni_syscall                  
+215     common  io_setup                        sys_io_setup                    compat_sys_io_setup
+216     common  io_destroy                      sys_io_destroy                  
+217     common  io_getevents                    sys_io_getevents                compat_sys_io_getevents
+218     common  io_submit                       sys_io_submit                   compat_sys_io_submit
+219     common  io_cancel                       sys_io_cancel                   
+220     common  alloc_hugepages                 sys_ni_syscall                  
+221     common  free_hugepages                  sys_ni_syscall                  
+222     common  exit_group                      sys_exit_group                  
+223     common  lookup_dcookie                  sys_lookup_dcookie              compat_sys_lookup_dcookie
+224     common  epoll_create                    sys_epoll_create                
+225     common  epoll_ctl                       sys_epoll_ctl                   
+226     common  epoll_wait                      sys_epoll_wait                  
+227     common  remap_file_pages                sys_remap_file_pages            
+228     common  semtimedop                      sys_semtimedop                  compat_sys_semtimedop
+229     common  mq_open                         sys_mq_open                     compat_sys_mq_open
+230     common  mq_unlink                       sys_mq_unlink                   
+231     common  mq_timedsend                    sys_mq_timedsend                compat_sys_mq_timedsend
+232     common  mq_timedreceive                 sys_mq_timedreceive             compat_sys_mq_timedreceive
+233     common  mq_notify                       sys_mq_notify                   compat_sys_mq_notify
+234     common  mq_getsetattr                   sys_mq_getsetattr               compat_sys_mq_getsetattr
+235     common  waitid                          sys_waitid                      compat_sys_waitid
+236     common  fadvise64_64                    sys_fadvise64_64                parisc_fadvise64_64
+237     common  set_tid_address                 sys_set_tid_address             
+238     common  setxattr                        sys_setxattr                    
+239     common  lsetxattr                       sys_lsetxattr                   
+240     common  fsetxattr                       sys_fsetxattr                   
+241     common  getxattr                        sys_getxattr                    
+242     common  lgetxattr                       sys_lgetxattr                   
+243     common  fgetxattr                       sys_fgetxattr                   
+244     common  listxattr                       sys_listxattr                   
+245     common  llistxattr                      sys_llistxattr                  
+246     common  flistxattr                      sys_flistxattr                  
+247     common  removexattr                     sys_removexattr                 
+248     common  lremovexattr                    sys_lremovexattr                
+249     common  fremovexattr                    sys_fremovexattr                
+250     common  timer_create                    sys_timer_create                compat_sys_timer_create
+251     common  timer_settime                   sys_timer_settime               compat_sys_timer_settime
+252     common  timer_gettime                   sys_timer_gettime               compat_sys_timer_gettime
+253     common  timer_getoverrun                sys_timer_getoverrun            
+254     common  timer_delete                    sys_timer_delete                
+255     common  clock_settime                   sys_clock_settime               compat_sys_clock_settime
+256     common  clock_gettime                   sys_clock_gettime               compat_sys_clock_gettime
+257     common  clock_getres                    sys_clock_getres                compat_sys_clock_getres
+258     common  clock_nanosleep                 sys_clock_nanosleep             compat_sys_clock_nanosleep
+259     common  tgkill                          sys_tgkill                      
+260     common  mbind                           sys_mbind                       compat_sys_mbind
+261     common  get_mempolicy                   sys_get_mempolicy               compat_sys_get_mempolicy
+262     common  set_mempolicy                   sys_set_mempolicy               compat_sys_set_mempolicy
+263     common  vserver                         sys_ni_syscall                  
+264     common  add_key                         sys_add_key                     
+265     common  request_key                     sys_request_key                 
+266     common  keyctl                          sys_keyctl                      compat_sys_keyctl
+267     common  ioprio_set                      sys_ioprio_set                  
+268     common  ioprio_get                      sys_ioprio_get                  
+269     common  inotify_init                    sys_inotify_init                
+270     common  inotify_add_watch               sys_inotify_add_watch           
+271     common  inotify_rm_watch                sys_inotify_rm_watch            
+272     common  migrate_pages                   sys_migrate_pages               
+273     common  pselect6                        sys_pselect6                    compat_sys_pselect6
+274     common  ppoll                           sys_ppoll                       compat_sys_ppoll
+275     common  openat                          sys_openat                      compat_sys_openat
+276     common  mkdirat                         sys_mkdirat                     
+277     common  mknodat                         sys_mknodat                     
+278     common  fchownat                        sys_fchownat                    
+279     common  futimesat                       sys_futimesat                   compat_sys_futimesat
+280     common  fstatat64                       sys_fstatat64                   
+281     common  unlinkat                        sys_unlinkat                    
+282     common  renameat                        sys_renameat                    
+283     common  linkat                          sys_linkat                      
+284     common  symlinkat                       sys_symlinkat                   
+285     common  readlinkat                      sys_readlinkat                  
+286     common  fchmodat                        sys_fchmodat                    
+287     common  faccessat                       sys_faccessat                   
+288     common  unshare                         sys_unshare                     
+289     common  set_robust_list                 sys_set_robust_list             compat_sys_set_robust_list
+290     common  get_robust_list                 sys_get_robust_list             compat_sys_get_robust_list
+291     common  splice                          sys_splice                      
+292     common  sync_file_range                 sys_sync_file_range             parisc_sync_file_range
+293     common  tee                             sys_tee                         
+294     common  vmsplice                        sys_vmsplice                    compat_sys_vmsplice
+295     common  move_pages                      sys_move_pages                  compat_sys_move_pages
+296     common  getcpu                          sys_getcpu                      
+297     common  epoll_pwait                     sys_epoll_pwait                 compat_sys_epoll_pwait
+298     common  statfs64                        sys_statfs64                    compat_sys_statfs64
+299     common  fstatfs64                       sys_fstatfs64                   compat_sys_fstatfs64
+300     common  kexec_load                      sys_kexec_load                  compat_sys_kexec_load
+301     common  utimensat                       sys_utimensat                   compat_sys_utimensat
+302     common  signalfd                        sys_signalfd                    compat_sys_signalfd
+303     common  timerfd                         sys_ni_syscall                  
+304     common  eventfd                         sys_eventfd                     
+305     common  fallocate                       sys_fallocate                   parisc_fallocate
+306     common  timerfd_create                  sys_timerfd_create              
+307     common  timerfd_settime                 sys_timerfd_settime             compat_sys_timerfd_settime
+308     common  timerfd_gettime                 sys_timerfd_gettime             compat_sys_timerfd_gettime
+309     common  signalfd4                       sys_signalfd4                   compat_sys_signalfd4
+310     common  eventfd2                        sys_eventfd2                    
+311     common  epoll_create1                   sys_epoll_create1               
+312     common  dup3                            sys_dup3                        
+313     common  pipe2                           sys_pipe2                       
+314     common  inotify_init1                   sys_inotify_init1               
+315     common  preadv                          sys_preadv                      compat_sys_preadv
+316     common  pwritev                         sys_pwritev                     compat_sys_pwritev
+317     common  rt_tgsigqueueinfo               sys_rt_tgsigqueueinfo           compat_sys_rt_tgsigqueueinfo
+318     common  perf_event_open                 sys_perf_event_open             
+319     common  recvmmsg                        sys_recvmmsg                    compat_sys_recvmmsg
+320     common  accept4                         sys_accept4                     
+321     common  prlimit64                       sys_prlimit64                   
+322     common  fanotify_init                   sys_fanotify_init               
+323     common  fanotify_mark                   sys_fanotify_mark               sys32_fanotify_mark
+324     common  clock_adjtime                   sys_clock_adjtime               compat_sys_clock_adjtime
+325     common  name_to_handle_at               sys_name_to_handle_at           
+326     common  open_by_handle_at               sys_open_by_handle_at           compat_sys_open_by_handle_at
+327     common  syncfs                          sys_syncfs                      
+328     common  setns                           sys_setns                       
+329     common  sendmmsg                        sys_sendmmsg                    compat_sys_sendmmsg
+330     common  process_vm_readv                sys_process_vm_readv            compat_sys_process_vm_readv
+331     common  process_vm_writev               sys_process_vm_writev           compat_sys_process_vm_writev
+332     common  kcmp                            sys_kcmp                        
+333     common  finit_module                    sys_finit_module                
+334     common  sched_setattr                   sys_sched_setattr               
+335     common  sched_getattr                   sys_sched_getattr               
+336     common  utimes                          sys_utimes                      compat_sys_utimes
+337     common  renameat2                       sys_renameat2                   
+338     common  seccomp                         sys_seccomp                     
+339     common  getrandom                       sys_getrandom                   
+340     common  memfd_create                    sys_memfd_create                
+341     common  bpf                             sys_bpf                         
+342     common  execveat                        sys_execveat                    compat_sys_execveat
+343     common  membarrier                      sys_membarrier                  
+344     common  userfaultfd                     sys_userfaultfd                 
+345     common  mlock2                          sys_mlock2                      
+346     common  copy_file_range                 sys_copy_file_range             
+347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
+348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
+349     common  statx                           sys_statx                       
diff --git a/arch/parisc/kernel/syscalls/syscall_64.tbl b/arch/parisc/kernel/syscalls/syscall_64.tbl
new file mode 100644
index 0000000..34f9191
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscall_64.tbl
@@ -0,0 +1,357 @@
+#
+# 64-bit system call numbers and entry vectors
+#
+# The format is:
+# <number> <abi> <name> <entry point>
+#
+# The abi is "common" for this file.
+#
+0       common  restart_syscall                 sys_restart_syscall
+1       common  exit                            sys_exit
+2       common  fork                            sys_fork_wrapper
+3       common  read                            sys_read
+4       common  write                           sys_write
+5       common  open                            sys_open
+6       common  close                           sys_close
+7       common  waitpid                         sys_waitpid
+8       common  creat                           sys_creat
+9       common  link                            sys_link
+10      common  unlink                          sys_unlink
+11      common  execve                          sys_execve
+12      common  chdir                           sys_chdir
+13      common  time                            sys_time
+14      common  mknod                           sys_mknod
+15      common  chmod                           sys_chmod
+16      common  lchown                          sys_lchown
+17      common  socket                          sys_socket
+18      common  stat                            sys_newstat
+19      common  lseek                           sys_lseek
+20      common  getpid                          sys_getpid
+21      common  mount                           sys_mount
+22      common  bind                            sys_bind
+23      common  setuid                          sys_setuid
+24      common  getuid                          sys_getuid
+25      common  stime                           sys_stime
+26      common  ptrace                          sys_ptrace
+27      common  alarm                           sys_alarm
+28      common  fstat                           sys_newfstat
+29      common  pause                           sys_pause
+30      common  utime                           sys_utime
+31      common  connect                         sys_connect
+32      common  listen                          sys_listen
+33      common  access                          sys_access
+34      common  nice                            sys_nice
+35      common  accept                          sys_accept
+36      common  sync                            sys_sync
+37      common  kill                            sys_kill
+38      common  rename                          sys_rename
+39      common  mkdir                           sys_mkdir
+40      common  rmdir                           sys_rmdir
+41      common  dup                             sys_dup
+42      common  pipe                            sys_pipe
+43      common  times                           sys_times
+44      common  getsockname                     sys_getsockname
+45      common  brk                             sys_brk
+46      common  setgid                          sys_setgid
+47      common  getgid                          sys_getgid
+48      common  signal                          sys_signal
+49      common  geteuid                         sys_geteuid
+50      common  getegid                         sys_getegid
+51      common  acct                            sys_acct
+52      common  umount2                         sys_umount
+53      common  getpeername                     sys_getpeername
+54      common  ioctl                           sys_ioctl
+55      common  fcntl                           sys_fcntl
+56      common  socketpair                      sys_socketpair
+57      common  setpgid                         sys_setpgid
+58      common  send                            sys_send
+59      common  uname                           sys_newuname
+60      common  umask                           sys_umask
+61      common  chroot                          sys_chroot
+62      common  ustat                           sys_ustat
+63      common  dup2                            sys_dup2
+64      common  getppid                         sys_getppid
+65      common  getpgrp                         sys_getpgrp
+66      common  setsid                          sys_setsid
+67      common  pivot_root                      sys_pivot_root
+68      common  sgetmask                        sys_sgetmask
+69      common  ssetmask                        sys_ssetmask
+70      common  setreuid                        sys_setreuid
+71      common  setregid                        sys_setregid
+72      common  mincore                         sys_mincore
+73      common  sigpending                      sys_sigpending
+74      common  sethostname                     sys_sethostname
+75      common  setrlimit                       sys_setrlimit
+76      common  getrlimit                       sys_getrlimit
+77      common  getrusage                       sys_getrusage
+78      common  gettimeofday                    sys_gettimeofday
+79      common  settimeofday                    sys_settimeofday
+80      common  getgroups                       sys_getgroups
+81      common  setgroups                       sys_setgroups
+82      common  sendto                          sys_sendto
+83      common  symlink                         sys_symlink
+84      common  lstat                           sys_newlstat
+85      common  readlink                        sys_readlink
+86      common  uselib                          sys_ni_syscall
+87      common  swapon                          sys_swapon
+88      common  reboot                          sys_reboot
+89      common  mmap2                           sys_mmap2
+90      common  mmap                            sys_mmap
+91      common  munmap                          sys_munmap
+92      common  truncate                        sys_truncate
+93      common  ftruncate                       sys_ftruncate
+94      common  fchmod                          sys_fchmod
+95      common  fchown                          sys_fchown
+96      common  getpriority                     sys_getpriority
+97      common  setpriority                     sys_setpriority
+98      common  recv                            sys_recv
+99      common  statfs                          sys_statfs
+100     common  fstatfs                         sys_fstatfs
+101     common  stat64                          sys_stat64
+102     common  socketcall                      sys_ni_syscall
+103     common  syslog                          sys_syslog
+104     common  setitimer                       sys_setitimer
+105     common  getitimer                       sys_getitimer
+106     common  capget                          sys_capget
+107     common  capset                          sys_capset
+108     common  pread64                         sys_pread64
+109     common  pwrite64                        sys_pwrite64
+110     common  getcwd                          sys_getcwd
+111     common  vhangup                         sys_vhangup
+112     common  fstat64                         sys_fstat64
+113     common  vfork                           sys_vfork_wrapper
+114     common  wait4                           sys_wait4
+115     common  swapoff                         sys_swapoff
+116     common  sysinfo                         sys_sysinfo
+117     common  shutdown                        sys_shutdown
+118     common  fsync                           sys_fsync
+119     common  madvise                         sys_madvise
+120     common  clone                           sys_clone_wrapper
+121     common  setdomainname                   sys_setdomainname
+122     common  sendfile                        sys_sendfile
+123     common  recvfrom                        sys_recvfrom
+124     common  adjtimex                        sys_adjtimex
+125     common  mprotect                        sys_mprotect
+126     common  sigprocmask                     sys_sigprocmask
+127     common  create_module                   sys_ni_syscall
+128     common  init_module                     sys_init_module
+129     common  delete_module                   sys_delete_module
+131     common  quotactl                        sys_quotactl
+132     common  getpgid                         sys_getpgid
+133     common  fchdir                          sys_fchdir
+134     common  bdflush                         sys_bdflush
+135     common  sysfs                           sys_sysfs
+136     common  personality                     sys_personality
+137     common  afs_syscall                     sys_ni_syscall
+138     common  setfsuid                        sys_setfsuid
+139     common  setfsgid                        sys_setfsgid
+140     common  _llseek                         sys_llseek
+141     common  getdents                        sys_getdents
+142     common  _newselect                      sys_select
+143     common  flock                           sys_flock
+144     common  msync                           sys_msync
+145     common  readv                           sys_readv
+146     common  writev                          sys_writev
+147     common  getsid                          sys_getsid
+148     common  fdatasync                       sys_fdatasync
+149     common  _sysctl                         sys_sysctl
+150     common  mlock                           sys_mlock
+151     common  munlock                         sys_munlock
+152     common  mlockall                        sys_mlockall
+153     common  munlockall                      sys_munlockall
+154     common  sched_setparam                  sys_sched_setparam
+155     common  sched_getparam                  sys_sched_getparam
+156     common  sched_setscheduler              sys_sched_setscheduler
+157     common  sched_getscheduler              sys_sched_getscheduler
+158     common  sched_yield                     sys_sched_yield
+159     common  sched_get_priority_max          sys_sched_get_priority_max
+160     common  sched_get_priority_min          sys_sched_get_priority_min
+161     common  sched_rr_get_interval           sys_sched_rr_get_interval
+162     common  nanosleep                       sys_nanosleep
+163     common  mremap                          sys_mremap
+164     common  setresuid                       sys_setresuid
+165     common  getresuid                       sys_getresuid
+166     common  sigaltstack                     sys_sigaltstack
+167     common  query_module                    sys_ni_syscall
+168     common  poll                            sys_poll
+169     common  nfsservctl                      sys_ni_syscall
+170     common  setresgid                       sys_setresgid
+171     common  getresgid                       sys_getresgid
+172     common  prctl                           sys_prctl
+173     common  rt_sigreturn                    sys_rt_sigreturn
+174     common  rt_sigaction                    sys_rt_sigaction
+175     common  rt_sigprocmask                  sys_rt_sigprocmask
+176     common  rt_sigpending                   sys_rt_sigpending
+177     common  rt_sigtimedwait                 sys_rt_sigtimedwait
+178     common  rt_sigqueueinfo                 sys_rt_sigqueueinfo
+179     common  rt_sigsuspend                   sys_rt_sigsuspend
+180     common  chown                           sys_chown
+181     common  setsockopt                      sys_setsockopt
+182     common  getsockopt                      sys_getsockopt
+183     common  sendmsg                         sys_sendmsg
+184     common  recvmsg                         sys_recvmsg
+185     common  semop                           sys_semop
+186     common  semget                          sys_semget
+187     common  semctl                          sys_semctl
+188     common  msgsnd                          sys_msgsnd
+189     common  msgrcv                          sys_msgrcv
+190     common  msgget                          sys_msgget
+191     common  msgctl                          sys_msgctl
+192     common  shmat                           sys_shmat
+193     common  shmdt                           sys_shmdt
+194     common  shmget                          sys_shmget
+195     common  shmctl                          sys_shmctl
+196     common  getpmsg                         sys_ni_syscall
+197     common  putpmsg                         sys_ni_syscall
+198     common  lstat64                         sys_lstat64
+199     common  truncate64                      sys_truncate64
+200     common  ftruncate64                     sys_ftruncate64
+201     common  getdents64                      sys_getdents64
+202     common  fcntl64                         sys_fcntl64
+203     common  attrctl                         sys_ni_syscall
+204     common  acl_get                         sys_ni_syscall
+205     common  acl_set                         sys_ni_syscall
+206     common  gettid                          sys_gettid
+207     common  readahead                       sys_readahead
+208     common  tkill                           sys_tkill
+209     common  sendfile64                      sys_sendfile64
+210     common  futex                           sys_futex
+211     common  sched_setaffinity               sys_sched_setaffinity
+212     common  sched_getaffinity               sys_sched_getaffinity
+213     common  set_thread_area                 sys_ni_syscall
+214     common  get_thread_area                 sys_ni_syscall
+215     common  io_setup                        sys_io_setup
+216     common  io_destroy                      sys_io_destroy
+217     common  io_getevents                    sys_io_getevents
+218     common  io_submit                       sys_io_submit
+219     common  io_cancel                       sys_io_cancel
+220     common  alloc_hugepages                 sys_ni_syscall
+221     common  free_hugepages                  sys_ni_syscall
+222     common  exit_group                      sys_exit_group
+223     common  lookup_dcookie                  sys_lookup_dcookie
+224     common  epoll_create                    sys_epoll_create
+225     common  epoll_ctl                       sys_epoll_ctl
+226     common  epoll_wait                      sys_epoll_wait
+227     common  remap_file_pages                sys_remap_file_pages
+228     common  semtimedop                      sys_semtimedop
+229     common  mq_open                         sys_mq_open
+230     common  mq_unlink                       sys_mq_unlink
+231     common  mq_timedsend                    sys_mq_timedsend
+232     common  mq_timedreceive                 sys_mq_timedreceive
+233     common  mq_notify                       sys_mq_notify
+234     common  mq_getsetattr                   sys_mq_getsetattr
+235     common  waitid                          sys_waitid
+236     common  fadvise64_64                    sys_fadvise64_64
+237     common  set_tid_address                 sys_set_tid_address
+238     common  setxattr                        sys_setxattr
+239     common  lsetxattr                       sys_lsetxattr
+240     common  fsetxattr                       sys_fsetxattr
+241     common  getxattr                        sys_getxattr
+242     common  lgetxattr                       sys_lgetxattr
+243     common  fgetxattr                       sys_fgetxattr
+244     common  listxattr                       sys_listxattr
+245     common  llistxattr                      sys_llistxattr
+246     common  flistxattr                      sys_flistxattr
+247     common  removexattr                     sys_removexattr
+248     common  lremovexattr                    sys_lremovexattr
+249     common  fremovexattr                    sys_fremovexattr
+250     common  timer_create                    sys_timer_create
+251     common  timer_settime                   sys_timer_settime
+252     common  timer_gettime                   sys_timer_gettime
+253     common  timer_getoverrun                sys_timer_getoverrun
+254     common  timer_delete                    sys_timer_delete
+255     common  clock_settime                   sys_clock_settime
+256     common  clock_gettime                   sys_clock_gettime
+257     common  clock_getres                    sys_clock_getres
+258     common  clock_nanosleep                 sys_clock_nanosleep
+259     common  tgkill                          sys_tgkill
+260     common  mbind                           sys_mbind
+261     common  get_mempolicy                   sys_get_mempolicy
+262     common  set_mempolicy                   sys_set_mempolicy
+263     common  vserver                         sys_ni_syscall
+264     common  add_key                         sys_add_key
+265     common  request_key                     sys_request_key
+266     common  keyctl                          sys_keyctl
+267     common  ioprio_set                      sys_ioprio_set
+268     common  ioprio_get                      sys_ioprio_get
+269     common  inotify_init                    sys_inotify_init
+270     common  inotify_add_watch               sys_inotify_add_watch
+271     common  inotify_rm_watch                sys_inotify_rm_watch
+272     common  migrate_pages                   sys_migrate_pages
+273     common  pselect6                        sys_pselect6
+274     common  ppoll                           sys_ppoll
+275     common  openat                          sys_openat
+276     common  mkdirat                         sys_mkdirat
+277     common  mknodat                         sys_mknodat
+278     common  fchownat                        sys_fchownat
+279     common  futimesat                       sys_futimesat
+280     common  fstatat64                       sys_fstatat64
+281     common  unlinkat                        sys_unlinkat
+282     common  renameat                        sys_renameat
+283     common  linkat                          sys_linkat
+284     common  symlinkat                       sys_symlinkat
+285     common  readlinkat                      sys_readlinkat
+286     common  fchmodat                        sys_fchmodat
+287     common  faccessat                       sys_faccessat
+288     common  unshare                         sys_unshare
+289     common  set_robust_list                 sys_set_robust_list
+290     common  get_robust_list                 sys_get_robust_list
+291     common  splice                          sys_splice
+292     common  sync_file_range                 sys_sync_file_range
+293     common  tee                             sys_tee
+294     common  vmsplice                        sys_vmsplice
+295     common  move_pages                      sys_move_pages
+296     common  getcpu                          sys_getcpu
+297     common  epoll_pwait                     sys_epoll_pwait
+298     common  statfs64                        sys_statfs64
+299     common  fstatfs64                       sys_fstatfs64
+300     common  kexec_load                      sys_kexec_load
+301     common  utimensat                       sys_utimensat
+302     common  signalfd                        sys_signalfd
+303     common  timerfd                         sys_ni_syscall
+304     common  eventfd                         sys_eventfd
+305     common  fallocate                       sys_fallocate
+306     common  timerfd_create                  sys_timerfd_create
+307     common  timerfd_settime                 sys_timerfd_settime
+308     common  timerfd_gettime                 sys_timerfd_gettime
+309     common  signalfd4                       sys_signalfd4
+310     common  eventfd2                        sys_eventfd2
+311     common  epoll_create1                   sys_epoll_create1
+312     common  dup3                            sys_dup3
+313     common  pipe2                           sys_pipe2
+314     common  inotify_init1                   sys_inotify_init1
+315     common  preadv                          sys_preadv
+316     common  pwritev                         sys_pwritev
+317     common  rt_tgsigqueueinfo               sys_rt_tgsigqueueinfo
+318     common  perf_event_open                 sys_perf_event_open
+319     common  recvmmsg                        sys_recvmmsg
+320     common  accept4                         sys_accept4
+321     common  prlimit64                       sys_prlimit64
+322     common  fanotify_init                   sys_fanotify_init
+323     common  fanotify_mark                   sys_fanotify_mark
+324     common  clock_adjtime                   sys_clock_adjtime
+325     common  name_to_handle_at               sys_name_to_handle_at
+326     common  open_by_handle_at               sys_open_by_handle_at
+327     common  syncfs                          sys_syncfs
+328     common  setns                           sys_setns
+329     common  sendmmsg                        sys_sendmmsg
+330     common  process_vm_readv                sys_process_vm_readv
+331     common  process_vm_writev               sys_process_vm_writev
+332     common  kcmp                            sys_kcmp
+333     common  finit_module                    sys_finit_module
+334     common  sched_setattr                   sys_sched_setattr
+335     common  sched_getattr                   sys_sched_getattr
+336     common  utimes                          sys_utimes
+337     common  renameat2                       sys_renameat2
+338     common  seccomp                         sys_seccomp
+339     common  getrandom                       sys_getrandom
+340     common  memfd_create                    sys_memfd_create
+341     common  bpf                             sys_bpf
+342     common  execveat                        sys_execveat
+343     common  membarrier                      sys_membarrier
+344     common  userfaultfd                     sys_userfaultfd
+345     common  mlock2                          sys_mlock2
+346     common  copy_file_range                 sys_copy_file_range
+347     common  preadv2                         sys_preadv2
+348     common  pwritev2                        sys_pwritev2
+349     common  statx                           sys_statx
diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh b/arch/parisc/kernel/syscalls/syscallhdr.sh
new file mode 100644
index 0000000..c6f26f2
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+prefix="$4"
+offset="$5"
+
+fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+    echo "#ifndef ${fileguard}"
+    echo "#define ${fileguard}"
+    echo ""
+    echo -e "#define __NR_Linux\t0"
+
+    nxt=0
+    while read nr abi name entry compat ; do
+	if [ -z "$offset" ]; then
+	    echo -e "#define __NR_${prefix}${name}\t$nr"
+	else
+	    echo -e "#define __NR_${prefix}${name}\t($offset + $nr)"
+	fi
+	nxt=$nr
+	let nxt=nxt+1
+    done
+
+    echo ""
+    if [ -z "$offset" ]; then
+	echo -e "#define __NR_syscalls\t$nxt"
+    else
+	echo -e "#define __NR_syscalls\t($offset + $nxt)"
+    fi
+    echo ""
+    echo "#endif /* ${fileguard} */"
+) > "$out"
diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh b/arch/parisc/kernel/syscalls/syscalltbl.sh
new file mode 100644
index 0000000..8e38dd0
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscalltbl.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abi="$3"
+
+emit() {
+    nxt="$1"
+    nr="$2"
+    entry="$3"
+    
+    while [ $nxt -lt $nr ]; do
+	echo "__SYSCALL($nxt, sys_ni_syscall, )"
+        let nxt=nxt+1
+    done
+    
+    echo "__SYSCALL($nr, $entry, )"
+}
+
+grep '^[0-9]' "$in" | sort -n | (
+    nxt=0
+    while read nr abi name entry compat ; do
+	if [ "$my_abi" = "64" -o "$my_abi" = "32" ]; then
+            emit $nxt $nr $entry
+	elif [ "$my_abi" = "c32" ]; then
+	    if [ -z "$compat" ]; then
+                emit $nxt $nr $entry
+            else
+                emit $nxt $nr $compat
+            fi
+	fi
+	nxt=$nr
+        let nxt=nxt+1
+    done
+) > "$out"
-- 
1.9.1



From - Thu Nov 08 21:41:55 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH 4/4] parisc: uapi header and system call table file generation
Date: Fri, 14 Sep 2018 13:56:43 +0530
Lines: 986
Approved: news@gmane.org
Message-ID: <1536913603-4584-5-git-send-email-firoz.khan@linaro.org>
References: <1536913603-4584-1-git-send-email-firoz.khan@linaro.org>
NNTP-Posting-Host: blaine.gmane.org
X-Trace: blaine.gmane.org 1536913544 23244 195.159.176.226 (14 Sep 2018 08:25:44 GMT)
X-Complaints-To: usenet@blaine.gmane.org
NNTP-Posting-Date: Fri, 14 Sep 2018 08:25:44 +0000 (UTC)
Cc: y2038@lists.linaro.org, linux-kernel@vger.kernel.org,
        linux-arch@vger.kernel.org, arnd@arndb.de, deepa.kernel@gmail.com,
        marcin.juszkiewicz@linaro.org, firoz.khan@linaro.org
To: Thibaut Varene <T-Bone@parisc-linux.org>,
        linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Philippe Ombredanne <pombredanne@nexb.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Kate Stewart <kstewart@linuxfoundation.org>
Original-X-From: linux-kernel-owner@vger.kernel.org Fri Sep 14 10:25:38 2018
Return-path: <linux-kernel-owner@vger.kernel.org>
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Xref: news.gmane.org gmane.linux.kernel:2870558 gmane.linux.ports.parisc:28940 gmane.linux.kernel.year-2038:3310 gmane.linux.kernel.cross-arch:46413
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System call table generation script must be run to generate
unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
will have changes which will invokes the script.

This patch will generate unistd_32/64.h and syscall_table_
32/64/c32.h files by the syscall table generation script
invoked by arch/sparc/Makefile and the generated files against
the removed files will be identical.

The generated uapi header file will be included in uapi/asm/
unistd_32/64.h and generated system call table support file will
be included by arch/sparc/kernel/syscall_table_32/64.S file.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/Makefile                  |   4 +
 arch/parisc/include/asm/Kbuild        |   3 +
 arch/parisc/include/uapi/asm/Kbuild   |   2 +
 arch/parisc/include/uapi/asm/unistd.h | 370 +--------------------------
 arch/parisc/kernel/syscall.S          |  14 +-
 arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------
 arch/parisc/kernel/syscall_table_32.S |  11 +
 arch/parisc/kernel/syscall_table_64.S |  19 ++
 8 files changed, 47 insertions(+), 835 deletions(-)
 delete mode 100644 arch/parisc/kernel/syscall_table.S
 create mode 100644 arch/parisc/kernel/syscall_table_32.S
 create mode 100644 arch/parisc/kernel/syscall_table_64.S

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5ce0302..6b217da 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -159,6 +159,10 @@ endef
 
 # we require gcc 3.3 or above to compile the kernel
 archprepare: checkbin
+
+archheaders:
+	$(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all
+
 checkbin:
 	@if test "$(cc-version)" -lt "0303"; then \
 		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 2013d63..f67046d 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -23,3 +23,6 @@ generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generated-y += syscall_table_32.h
+generated-y += syscall_table_64.h
+generated-y += syscall_table_c32.h
\ No newline at end of file
diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
index 286ef5a..dc1823a 100644
--- a/arch/parisc/include/uapi/asm/Kbuild
+++ b/arch/parisc/include/uapi/asm/Kbuild
@@ -7,3 +7,5 @@ generic-y += kvm_para.h
 generic-y += param.h
 generic-y += poll.h
 generic-y += resource.h
+generated-y += unistd_32.h
+generated-y += unistd_64.h
\ No newline at end of file
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 7532817..5b7578e 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -2,371 +2,11 @@
 #ifndef _UAPI_ASM_PARISC_UNISTD_H_
 #define _UAPI_ASM_PARISC_UNISTD_H_
 
-/*
- * Linux system call numbers.
- *
- * Cary Coutant says that we should just use another syscall gateway
- * page to avoid clashing with the HPUX space, and I think he's right:
- * it will would keep a branch out of our syscall entry path, at the
- * very least.  If we decide to change it later, we can ``just'' tweak
- * the LINUX_GATEWAY_ADDR define at the bottom and make __NR_Linux be
- * 1024 or something.  Oh, and recompile libc. =)
- */
-
-#define __NR_Linux                0
-#define __NR_restart_syscall      (__NR_Linux + 0)
-#define __NR_exit                 (__NR_Linux + 1)
-#define __NR_fork                 (__NR_Linux + 2)
-#define __NR_read                 (__NR_Linux + 3)
-#define __NR_write                (__NR_Linux + 4)
-#define __NR_open                 (__NR_Linux + 5)
-#define __NR_close                (__NR_Linux + 6)
-#define __NR_waitpid              (__NR_Linux + 7)
-#define __NR_creat                (__NR_Linux + 8)
-#define __NR_link                 (__NR_Linux + 9)
-#define __NR_unlink              (__NR_Linux + 10)
-#define __NR_execve              (__NR_Linux + 11)
-#define __NR_chdir               (__NR_Linux + 12)
-#define __NR_time                (__NR_Linux + 13)
-#define __NR_mknod               (__NR_Linux + 14)
-#define __NR_chmod               (__NR_Linux + 15)
-#define __NR_lchown              (__NR_Linux + 16)
-#define __NR_socket              (__NR_Linux + 17)
-#define __NR_stat                (__NR_Linux + 18)
-#define __NR_lseek               (__NR_Linux + 19)
-#define __NR_getpid              (__NR_Linux + 20)
-#define __NR_mount               (__NR_Linux + 21)
-#define __NR_bind                (__NR_Linux + 22)
-#define __NR_setuid              (__NR_Linux + 23)
-#define __NR_getuid              (__NR_Linux + 24)
-#define __NR_stime               (__NR_Linux + 25)
-#define __NR_ptrace              (__NR_Linux + 26)
-#define __NR_alarm               (__NR_Linux + 27)
-#define __NR_fstat               (__NR_Linux + 28)
-#define __NR_pause               (__NR_Linux + 29)
-#define __NR_utime               (__NR_Linux + 30)
-#define __NR_connect             (__NR_Linux + 31)
-#define __NR_listen              (__NR_Linux + 32)
-#define __NR_access              (__NR_Linux + 33)
-#define __NR_nice                (__NR_Linux + 34)
-#define __NR_accept              (__NR_Linux + 35)
-#define __NR_sync                (__NR_Linux + 36)
-#define __NR_kill                (__NR_Linux + 37)
-#define __NR_rename              (__NR_Linux + 38)
-#define __NR_mkdir               (__NR_Linux + 39)
-#define __NR_rmdir               (__NR_Linux + 40)
-#define __NR_dup                 (__NR_Linux + 41)
-#define __NR_pipe                (__NR_Linux + 42)
-#define __NR_times               (__NR_Linux + 43)
-#define __NR_getsockname         (__NR_Linux + 44)
-#define __NR_brk                 (__NR_Linux + 45)
-#define __NR_setgid              (__NR_Linux + 46)
-#define __NR_getgid              (__NR_Linux + 47)
-#define __NR_signal              (__NR_Linux + 48)
-#define __NR_geteuid             (__NR_Linux + 49)
-#define __NR_getegid             (__NR_Linux + 50)
-#define __NR_acct                (__NR_Linux + 51)
-#define __NR_umount2             (__NR_Linux + 52)
-#define __NR_getpeername         (__NR_Linux + 53)
-#define __NR_ioctl               (__NR_Linux + 54)
-#define __NR_fcntl               (__NR_Linux + 55)
-#define __NR_socketpair          (__NR_Linux + 56)
-#define __NR_setpgid             (__NR_Linux + 57)
-#define __NR_send                (__NR_Linux + 58)
-#define __NR_uname               (__NR_Linux + 59)
-#define __NR_umask               (__NR_Linux + 60)
-#define __NR_chroot              (__NR_Linux + 61)
-#define __NR_ustat               (__NR_Linux + 62)
-#define __NR_dup2                (__NR_Linux + 63)
-#define __NR_getppid             (__NR_Linux + 64)
-#define __NR_getpgrp             (__NR_Linux + 65)
-#define __NR_setsid              (__NR_Linux + 66)
-#define __NR_pivot_root          (__NR_Linux + 67)
-#define __NR_sgetmask            (__NR_Linux + 68)
-#define __NR_ssetmask            (__NR_Linux + 69)
-#define __NR_setreuid            (__NR_Linux + 70)
-#define __NR_setregid            (__NR_Linux + 71)
-#define __NR_mincore             (__NR_Linux + 72)
-#define __NR_sigpending          (__NR_Linux + 73)
-#define __NR_sethostname         (__NR_Linux + 74)
-#define __NR_setrlimit           (__NR_Linux + 75)
-#define __NR_getrlimit           (__NR_Linux + 76)
-#define __NR_getrusage           (__NR_Linux + 77)
-#define __NR_gettimeofday        (__NR_Linux + 78)
-#define __NR_settimeofday        (__NR_Linux + 79)
-#define __NR_getgroups           (__NR_Linux + 80)
-#define __NR_setgroups           (__NR_Linux + 81)
-#define __NR_sendto              (__NR_Linux + 82)
-#define __NR_symlink             (__NR_Linux + 83)
-#define __NR_lstat               (__NR_Linux + 84)
-#define __NR_readlink            (__NR_Linux + 85)
-#define __NR_uselib              (__NR_Linux + 86)
-#define __NR_swapon              (__NR_Linux + 87)
-#define __NR_reboot              (__NR_Linux + 88)
-#define __NR_mmap2               (__NR_Linux + 89)
-#define __NR_mmap                (__NR_Linux + 90)
-#define __NR_munmap              (__NR_Linux + 91)
-#define __NR_truncate            (__NR_Linux + 92)
-#define __NR_ftruncate           (__NR_Linux + 93)
-#define __NR_fchmod              (__NR_Linux + 94)
-#define __NR_fchown              (__NR_Linux + 95)
-#define __NR_getpriority         (__NR_Linux + 96)
-#define __NR_setpriority         (__NR_Linux + 97)
-#define __NR_recv                (__NR_Linux + 98)
-#define __NR_statfs              (__NR_Linux + 99)
-#define __NR_fstatfs            (__NR_Linux + 100)
-#define __NR_stat64             (__NR_Linux + 101)
-/* #define __NR_socketcall         (__NR_Linux + 102) */
-#define __NR_syslog             (__NR_Linux + 103)
-#define __NR_setitimer          (__NR_Linux + 104)
-#define __NR_getitimer          (__NR_Linux + 105)
-#define __NR_capget             (__NR_Linux + 106)
-#define __NR_capset             (__NR_Linux + 107)
-#define __NR_pread64            (__NR_Linux + 108)
-#define __NR_pwrite64           (__NR_Linux + 109)
-#define __NR_getcwd             (__NR_Linux + 110)
-#define __NR_vhangup            (__NR_Linux + 111)
-#define __NR_fstat64            (__NR_Linux + 112)
-#define __NR_vfork              (__NR_Linux + 113)
-#define __NR_wait4              (__NR_Linux + 114)
-#define __NR_swapoff            (__NR_Linux + 115)
-#define __NR_sysinfo            (__NR_Linux + 116)
-#define __NR_shutdown           (__NR_Linux + 117)
-#define __NR_fsync              (__NR_Linux + 118)
-#define __NR_madvise            (__NR_Linux + 119)
-#define __NR_clone              (__NR_Linux + 120)
-#define __NR_setdomainname      (__NR_Linux + 121)
-#define __NR_sendfile           (__NR_Linux + 122)
-#define __NR_recvfrom           (__NR_Linux + 123)
-#define __NR_adjtimex           (__NR_Linux + 124)
-#define __NR_mprotect           (__NR_Linux + 125)
-#define __NR_sigprocmask        (__NR_Linux + 126)
-#define __NR_create_module      (__NR_Linux + 127) /* not used */
-#define __NR_init_module        (__NR_Linux + 128)
-#define __NR_delete_module      (__NR_Linux + 129)
-#define __NR_get_kernel_syms    (__NR_Linux + 130) /* not used */
-#define __NR_quotactl           (__NR_Linux + 131)
-#define __NR_getpgid            (__NR_Linux + 132)
-#define __NR_fchdir             (__NR_Linux + 133)
-#define __NR_bdflush            (__NR_Linux + 134)
-#define __NR_sysfs              (__NR_Linux + 135)
-#define __NR_personality        (__NR_Linux + 136)
-#define __NR_afs_syscall        (__NR_Linux + 137) /* not used */
-#define __NR_setfsuid           (__NR_Linux + 138)
-#define __NR_setfsgid           (__NR_Linux + 139)
-#define __NR__llseek            (__NR_Linux + 140)
-#define __NR_getdents           (__NR_Linux + 141)
-#define __NR__newselect         (__NR_Linux + 142)
-#define __NR_flock              (__NR_Linux + 143)
-#define __NR_msync              (__NR_Linux + 144)
-#define __NR_readv              (__NR_Linux + 145)
-#define __NR_writev             (__NR_Linux + 146)
-#define __NR_getsid             (__NR_Linux + 147)
-#define __NR_fdatasync          (__NR_Linux + 148)
-#define __NR__sysctl            (__NR_Linux + 149)
-#define __NR_mlock              (__NR_Linux + 150)
-#define __NR_munlock            (__NR_Linux + 151)
-#define __NR_mlockall           (__NR_Linux + 152)
-#define __NR_munlockall         (__NR_Linux + 153)
-#define __NR_sched_setparam             (__NR_Linux + 154)
-#define __NR_sched_getparam             (__NR_Linux + 155)
-#define __NR_sched_setscheduler         (__NR_Linux + 156)
-#define __NR_sched_getscheduler         (__NR_Linux + 157)
-#define __NR_sched_yield                (__NR_Linux + 158)
-#define __NR_sched_get_priority_max     (__NR_Linux + 159)
-#define __NR_sched_get_priority_min     (__NR_Linux + 160)
-#define __NR_sched_rr_get_interval      (__NR_Linux + 161)
-#define __NR_nanosleep          (__NR_Linux + 162)
-#define __NR_mremap             (__NR_Linux + 163)
-#define __NR_setresuid          (__NR_Linux + 164)
-#define __NR_getresuid          (__NR_Linux + 165)
-#define __NR_sigaltstack        (__NR_Linux + 166)
-#define __NR_query_module       (__NR_Linux + 167) /* not used */
-#define __NR_poll               (__NR_Linux + 168)
-#define __NR_nfsservctl         (__NR_Linux + 169) /* not used */
-#define __NR_setresgid          (__NR_Linux + 170)
-#define __NR_getresgid          (__NR_Linux + 171)
-#define __NR_prctl              (__NR_Linux + 172)
-#define __NR_rt_sigreturn       (__NR_Linux + 173)
-#define __NR_rt_sigaction       (__NR_Linux + 174)
-#define __NR_rt_sigprocmask     (__NR_Linux + 175)
-#define __NR_rt_sigpending      (__NR_Linux + 176)
-#define __NR_rt_sigtimedwait    (__NR_Linux + 177)
-#define __NR_rt_sigqueueinfo    (__NR_Linux + 178)
-#define __NR_rt_sigsuspend      (__NR_Linux + 179)
-#define __NR_chown              (__NR_Linux + 180)
-#define __NR_setsockopt         (__NR_Linux + 181)
-#define __NR_getsockopt         (__NR_Linux + 182)
-#define __NR_sendmsg            (__NR_Linux + 183)
-#define __NR_recvmsg            (__NR_Linux + 184)
-#define __NR_semop              (__NR_Linux + 185)
-#define __NR_semget             (__NR_Linux + 186)
-#define __NR_semctl             (__NR_Linux + 187)
-#define __NR_msgsnd             (__NR_Linux + 188)
-#define __NR_msgrcv             (__NR_Linux + 189)
-#define __NR_msgget             (__NR_Linux + 190)
-#define __NR_msgctl             (__NR_Linux + 191)
-#define __NR_shmat              (__NR_Linux + 192)
-#define __NR_shmdt              (__NR_Linux + 193)
-#define __NR_shmget             (__NR_Linux + 194)
-#define __NR_shmctl             (__NR_Linux + 195)
-#define __NR_getpmsg            (__NR_Linux + 196) /* not used */
-#define __NR_putpmsg            (__NR_Linux + 197) /* not used */
-#define __NR_lstat64            (__NR_Linux + 198)
-#define __NR_truncate64         (__NR_Linux + 199)
-#define __NR_ftruncate64        (__NR_Linux + 200)
-#define __NR_getdents64         (__NR_Linux + 201)
-#define __NR_fcntl64            (__NR_Linux + 202)
-#define __NR_attrctl            (__NR_Linux + 203) /* not used */
-#define __NR_acl_get            (__NR_Linux + 204) /* not used */
-#define __NR_acl_set            (__NR_Linux + 205) /* not used */
-#define __NR_gettid             (__NR_Linux + 206)
-#define __NR_readahead          (__NR_Linux + 207)
-#define __NR_tkill              (__NR_Linux + 208)
-#define __NR_sendfile64         (__NR_Linux + 209)
-#define __NR_futex              (__NR_Linux + 210)
-#define __NR_sched_setaffinity  (__NR_Linux + 211)
-#define __NR_sched_getaffinity  (__NR_Linux + 212)
-#define __NR_set_thread_area    (__NR_Linux + 213) /* not used */
-#define __NR_get_thread_area    (__NR_Linux + 214) /* not used */
-#define __NR_io_setup           (__NR_Linux + 215)
-#define __NR_io_destroy         (__NR_Linux + 216)
-#define __NR_io_getevents       (__NR_Linux + 217)
-#define __NR_io_submit          (__NR_Linux + 218)
-#define __NR_io_cancel          (__NR_Linux + 219)
-#define __NR_alloc_hugepages    (__NR_Linux + 220) /* not used */
-#define __NR_free_hugepages     (__NR_Linux + 221) /* not used */
-#define __NR_exit_group         (__NR_Linux + 222)
-#define __NR_lookup_dcookie     (__NR_Linux + 223)
-#define __NR_epoll_create       (__NR_Linux + 224)
-#define __NR_epoll_ctl          (__NR_Linux + 225)
-#define __NR_epoll_wait         (__NR_Linux + 226)
-#define __NR_remap_file_pages   (__NR_Linux + 227)
-#define __NR_semtimedop         (__NR_Linux + 228)
-#define __NR_mq_open            (__NR_Linux + 229)
-#define __NR_mq_unlink          (__NR_Linux + 230)
-#define __NR_mq_timedsend       (__NR_Linux + 231)
-#define __NR_mq_timedreceive    (__NR_Linux + 232)
-#define __NR_mq_notify          (__NR_Linux + 233)
-#define __NR_mq_getsetattr      (__NR_Linux + 234)
-#define __NR_waitid		(__NR_Linux + 235)
-#define __NR_fadvise64_64	(__NR_Linux + 236)
-#define __NR_set_tid_address	(__NR_Linux + 237)
-#define __NR_setxattr		(__NR_Linux + 238)
-#define __NR_lsetxattr		(__NR_Linux + 239)
-#define __NR_fsetxattr		(__NR_Linux + 240)
-#define __NR_getxattr		(__NR_Linux + 241)
-#define __NR_lgetxattr		(__NR_Linux + 242)
-#define __NR_fgetxattr		(__NR_Linux + 243)
-#define __NR_listxattr		(__NR_Linux + 244)
-#define __NR_llistxattr		(__NR_Linux + 245)
-#define __NR_flistxattr		(__NR_Linux + 246)
-#define __NR_removexattr	(__NR_Linux + 247)
-#define __NR_lremovexattr	(__NR_Linux + 248)
-#define __NR_fremovexattr	(__NR_Linux + 249)
-#define __NR_timer_create	(__NR_Linux + 250)
-#define __NR_timer_settime	(__NR_Linux + 251)
-#define __NR_timer_gettime	(__NR_Linux + 252)
-#define __NR_timer_getoverrun	(__NR_Linux + 253)
-#define __NR_timer_delete	(__NR_Linux + 254)
-#define __NR_clock_settime	(__NR_Linux + 255)
-#define __NR_clock_gettime	(__NR_Linux + 256)
-#define __NR_clock_getres	(__NR_Linux + 257)
-#define __NR_clock_nanosleep	(__NR_Linux + 258)
-#define __NR_tgkill		(__NR_Linux + 259)
-#define __NR_mbind		(__NR_Linux + 260)
-#define __NR_get_mempolicy	(__NR_Linux + 261)
-#define __NR_set_mempolicy	(__NR_Linux + 262)
-#define __NR_vserver		(__NR_Linux + 263) /* not used */
-#define __NR_add_key		(__NR_Linux + 264)
-#define __NR_request_key	(__NR_Linux + 265)
-#define __NR_keyctl		(__NR_Linux + 266)
-#define __NR_ioprio_set		(__NR_Linux + 267)
-#define __NR_ioprio_get		(__NR_Linux + 268)
-#define __NR_inotify_init	(__NR_Linux + 269)
-#define __NR_inotify_add_watch	(__NR_Linux + 270)
-#define __NR_inotify_rm_watch	(__NR_Linux + 271)
-#define __NR_migrate_pages	(__NR_Linux + 272)
-#define __NR_pselect6		(__NR_Linux + 273)
-#define __NR_ppoll		(__NR_Linux + 274)
-#define __NR_openat		(__NR_Linux + 275)
-#define __NR_mkdirat		(__NR_Linux + 276)
-#define __NR_mknodat		(__NR_Linux + 277)
-#define __NR_fchownat		(__NR_Linux + 278)
-#define __NR_futimesat		(__NR_Linux + 279)
-#define __NR_fstatat64		(__NR_Linux + 280)
-#define __NR_unlinkat		(__NR_Linux + 281)
-#define __NR_renameat		(__NR_Linux + 282)
-#define __NR_linkat		(__NR_Linux + 283)
-#define __NR_symlinkat		(__NR_Linux + 284)
-#define __NR_readlinkat		(__NR_Linux + 285)
-#define __NR_fchmodat		(__NR_Linux + 286)
-#define __NR_faccessat		(__NR_Linux + 287)
-#define __NR_unshare		(__NR_Linux + 288)
-#define __NR_set_robust_list	(__NR_Linux + 289)
-#define __NR_get_robust_list	(__NR_Linux + 290)
-#define __NR_splice		(__NR_Linux + 291)
-#define __NR_sync_file_range	(__NR_Linux + 292)
-#define __NR_tee		(__NR_Linux + 293)
-#define __NR_vmsplice		(__NR_Linux + 294)
-#define __NR_move_pages		(__NR_Linux + 295)
-#define __NR_getcpu		(__NR_Linux + 296)
-#define __NR_epoll_pwait	(__NR_Linux + 297)
-#define __NR_statfs64		(__NR_Linux + 298)
-#define __NR_fstatfs64		(__NR_Linux + 299)
-#define __NR_kexec_load		(__NR_Linux + 300)
-#define __NR_utimensat		(__NR_Linux + 301)
-#define __NR_signalfd		(__NR_Linux + 302)
-#define __NR_timerfd		(__NR_Linux + 303) /* not used */
-#define __NR_eventfd		(__NR_Linux + 304)
-#define __NR_fallocate		(__NR_Linux + 305)
-#define __NR_timerfd_create	(__NR_Linux + 306)
-#define __NR_timerfd_settime	(__NR_Linux + 307)
-#define __NR_timerfd_gettime	(__NR_Linux + 308)
-#define __NR_signalfd4		(__NR_Linux + 309)
-#define __NR_eventfd2		(__NR_Linux + 310)
-#define __NR_epoll_create1	(__NR_Linux + 311)
-#define __NR_dup3		(__NR_Linux + 312)
-#define __NR_pipe2		(__NR_Linux + 313)
-#define __NR_inotify_init1	(__NR_Linux + 314)
-#define __NR_preadv		(__NR_Linux + 315)
-#define __NR_pwritev		(__NR_Linux + 316)
-#define __NR_rt_tgsigqueueinfo	(__NR_Linux + 317)
-#define __NR_perf_event_open	(__NR_Linux + 318)
-#define __NR_recvmmsg		(__NR_Linux + 319)
-#define __NR_accept4		(__NR_Linux + 320)
-#define __NR_prlimit64		(__NR_Linux + 321)
-#define __NR_fanotify_init	(__NR_Linux + 322)
-#define __NR_fanotify_mark	(__NR_Linux + 323)
-#define __NR_clock_adjtime	(__NR_Linux + 324)
-#define __NR_name_to_handle_at	(__NR_Linux + 325)
-#define __NR_open_by_handle_at	(__NR_Linux + 326)
-#define __NR_syncfs		(__NR_Linux + 327)
-#define __NR_setns		(__NR_Linux + 328)
-#define __NR_sendmmsg		(__NR_Linux + 329)
-#define __NR_process_vm_readv	(__NR_Linux + 330)
-#define __NR_process_vm_writev	(__NR_Linux + 331)
-#define __NR_kcmp		(__NR_Linux + 332)
-#define __NR_finit_module	(__NR_Linux + 333)
-#define __NR_sched_setattr	(__NR_Linux + 334)
-#define __NR_sched_getattr	(__NR_Linux + 335)
-#define __NR_utimes		(__NR_Linux + 336)
-#define __NR_renameat2		(__NR_Linux + 337)
-#define __NR_seccomp		(__NR_Linux + 338)
-#define __NR_getrandom		(__NR_Linux + 339)
-#define __NR_memfd_create	(__NR_Linux + 340)
-#define __NR_bpf		(__NR_Linux + 341)
-#define __NR_execveat		(__NR_Linux + 342)
-#define __NR_membarrier		(__NR_Linux + 343)
-#define __NR_userfaultfd	(__NR_Linux + 344)
-#define __NR_mlock2		(__NR_Linux + 345)
-#define __NR_copy_file_range	(__NR_Linux + 346)
-#define __NR_preadv2		(__NR_Linux + 347)
-#define __NR_pwritev2		(__NR_Linux + 348)
-#define __NR_statx		(__NR_Linux + 349)
-#define __NR_io_pgetevents	(__NR_Linux + 350)
-
-#define __NR_syscalls           (__NR_Linux + 351)
+#ifdef CONFIG_64BIT
+#include <asm/unistd_64.h>
+#else
+#include <asm/unistd_32.h>
+#endif
 
 #define LINUX_GATEWAY_ADDR      0x100
 
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f453997..ece76a5 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -923,20 +923,12 @@ ENTRY(lws_table)
 END(lws_table)
 	/* End of lws table */
 
-	.align 8
-ENTRY(sys_call_table)
-	.export sys_call_table,data
-#include "syscall_table.S"
-END(sys_call_table)
-
+#include "syscall_table_32.S"
 #ifdef CONFIG_64BIT
-	.align 8
-ENTRY(sys_call_table64)
 #define SYSCALL_TABLE_64BIT
-#include "syscall_table.S"
-END(sys_call_table64)
+#include "syscall_table_64.S"
 #endif
-
+	
 	/*
 		All light-weight-syscall atomic operations 
 		will use this set of locks 
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
deleted file mode 100644
index fe3f2a4..0000000
--- a/arch/parisc/kernel/syscall_table.S
+++ /dev/null
@@ -1,459 +0,0 @@
-/*    System Call Table
- *
- *    Copyright (C) 1999-2004 Matthew Wilcox <willy at parisc-linux.org>
- *    Copyright (C) 2000-2001 John Marvin <jsm at parisc-linux.org>
- *    Copyright (C) 2000 Alan Modra <amodra at parisc-linux.org>
- *    Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
- *    Copyright (C) 2000 Philipp Rumpf <prumpf with tux.org>
- *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
- *    Copyright (C) 2000 David Huggins-Daines <dhd with pobox.org>
- *    Copyright (C) 2000 Grant Grundler <grundler at parisc-linux.org>
- *    Copyright (C) 2001 Richard Hirst <rhirst with parisc-linux.org>
- *    Copyright (C) 2001-2002 Ryan Bradetich <rbrad at parisc-linux.org>
- *    Copyright (C) 2001-2007 Helge Deller <deller at parisc-linux.org>
- *    Copyright (C) 2000-2001 Thomas Bogendoerfer <tsbogend at parisc-linux.org>
- *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
- *    Copyright (C) 2005-2006 Kyle McMartin <kyle at parisc-linux.org>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#if defined(CONFIG_64BIT) && !defined(SYSCALL_TABLE_64BIT)
-/* Use ENTRY_SAME for 32-bit syscalls which are the same on wide and
- * narrow palinux.  Use ENTRY_DIFF for those where a 32-bit specific
- * implementation is required on wide palinux.  Use ENTRY_COMP where
- * the compatibility layer has a useful 32-bit implementation.
- */
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys32_##_name_
-#define ENTRY_UHOH(_name_) .dword sys32_##unimplemented
-#define ENTRY_OURS(_name_) .dword parisc_##_name_
-#define ENTRY_COMP(_name_) .dword compat_sys_##_name_
-#elif defined(CONFIG_64BIT) && defined(SYSCALL_TABLE_64BIT)
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys_##_name_
-#define ENTRY_UHOH(_name_) .dword sys_##_name_
-#define ENTRY_OURS(_name_) .dword sys_##_name_
-#define ENTRY_COMP(_name_) .dword sys_##_name_
-#else
-#define ENTRY_SAME(_name_) .word sys_##_name_
-#define ENTRY_DIFF(_name_) .word sys_##_name_
-#define ENTRY_UHOH(_name_) .word sys_##_name_
-#define ENTRY_OURS(_name_) .word parisc_##_name_
-#define ENTRY_COMP(_name_) .word sys_##_name_
-#endif
-
-90:	ENTRY_SAME(restart_syscall)	/* 0 */
-91:	ENTRY_SAME(exit)
-	ENTRY_SAME(fork_wrapper)
-	ENTRY_SAME(read)
-	ENTRY_SAME(write)
-	ENTRY_COMP(open)		/* 5 */
-	ENTRY_SAME(close)
-	ENTRY_SAME(waitpid)
-	ENTRY_SAME(creat)
-	ENTRY_SAME(link)
-	ENTRY_SAME(unlink)		/* 10 */
-	ENTRY_COMP(execve)
-	ENTRY_SAME(chdir)
-	/* See comments in kernel/time.c!!! Maybe we don't need this? */
-	ENTRY_COMP(time)
-	ENTRY_SAME(mknod)
-	ENTRY_SAME(chmod)		/* 15 */
-	ENTRY_SAME(lchown)
-	ENTRY_SAME(socket)
-	/* struct stat is MAYBE identical wide and narrow ?? */
-	ENTRY_COMP(newstat)
-	ENTRY_COMP(lseek)
-	ENTRY_SAME(getpid)		/* 20 */
-	/* the 'void * data' parameter may need re-packing in wide */
-	ENTRY_COMP(mount)
-	/* concerned about struct sockaddr in wide/narrow */
-	/* ---> I think sockaddr is OK unless the compiler packs the struct */
-	/*      differently to align the char array */
-	ENTRY_SAME(bind)
-	ENTRY_SAME(setuid)
-	ENTRY_SAME(getuid)
-	ENTRY_COMP(stime)		/* 25 */
-	ENTRY_COMP(ptrace)
-	ENTRY_SAME(alarm)
-	/* see stat comment */
-	ENTRY_COMP(newfstat)
-	ENTRY_SAME(pause)
-	/* struct utimbuf uses time_t which might vary */
-	ENTRY_COMP(utime)		/* 30 */
-	/* struct sockaddr... */
-	ENTRY_SAME(connect)
-	ENTRY_SAME(listen)
-	ENTRY_SAME(access)
-	ENTRY_SAME(nice)
-	/* struct sockaddr... */
-	ENTRY_SAME(accept)		/* 35 */
-	ENTRY_SAME(sync)
-	ENTRY_SAME(kill)
-	ENTRY_SAME(rename)
-	ENTRY_SAME(mkdir)
-	ENTRY_SAME(rmdir)		/* 40 */
-	ENTRY_SAME(dup)
-	ENTRY_SAME(pipe)
-	ENTRY_COMP(times)
-	/* struct sockaddr... */
-	ENTRY_SAME(getsockname)
-	/* it seems possible brk() could return a >4G pointer... */
-	ENTRY_SAME(brk)			/* 45 */
-	ENTRY_SAME(setgid)
-	ENTRY_SAME(getgid)
-	ENTRY_SAME(signal)
-	ENTRY_SAME(geteuid)
-	ENTRY_SAME(getegid)		/* 50 */
-	ENTRY_SAME(acct)
-	ENTRY_SAME(umount)
-	/* struct sockaddr... */
-	ENTRY_SAME(getpeername)
-	ENTRY_COMP(ioctl)
-	ENTRY_COMP(fcntl)		/* 55 */
-	ENTRY_SAME(socketpair)
-	ENTRY_SAME(setpgid)
-	ENTRY_SAME(send)
-	ENTRY_SAME(newuname)
-	ENTRY_SAME(umask)		/* 60 */
-	ENTRY_SAME(chroot)
-	ENTRY_COMP(ustat)
-	ENTRY_SAME(dup2)
-	ENTRY_SAME(getppid)
-	ENTRY_SAME(getpgrp)		/* 65 */
-	ENTRY_SAME(setsid)
-	ENTRY_SAME(pivot_root)
-	/* I don't like this */
-	ENTRY_UHOH(sgetmask)
-	ENTRY_UHOH(ssetmask)
-	ENTRY_SAME(setreuid)		/* 70 */
-	ENTRY_SAME(setregid)
-	ENTRY_SAME(mincore)
-	ENTRY_COMP(sigpending)
-	ENTRY_SAME(sethostname)
-	/* Following 3 have linux-common-code structs containing longs -( */
-	ENTRY_COMP(setrlimit)		/* 75 */
-	ENTRY_COMP(getrlimit)
-	ENTRY_COMP(getrusage)
-	/* struct timeval and timezone are maybe?? consistent wide and narrow */
-	ENTRY_COMP(gettimeofday)
-	ENTRY_COMP(settimeofday)
-	ENTRY_SAME(getgroups)		/* 80 */
-	ENTRY_SAME(setgroups)
-	/* struct socketaddr... */
-	ENTRY_SAME(sendto)
-	ENTRY_SAME(symlink)
-	/* see stat comment */
-	ENTRY_COMP(newlstat)
-	ENTRY_SAME(readlink)		/* 85 */
-	ENTRY_SAME(ni_syscall)	/* was uselib */
-	ENTRY_SAME(swapon)
-	ENTRY_SAME(reboot)
-	ENTRY_SAME(mmap2)
-	ENTRY_SAME(mmap)		/* 90 */
-	ENTRY_SAME(munmap)
-	ENTRY_COMP(truncate)
-	ENTRY_COMP(ftruncate)
-	ENTRY_SAME(fchmod)
-	ENTRY_SAME(fchown)		/* 95 */
-	ENTRY_SAME(getpriority)
-	ENTRY_SAME(setpriority)
-	ENTRY_SAME(recv)
-	ENTRY_COMP(statfs)
-	ENTRY_COMP(fstatfs)		/* 100 */
-	ENTRY_SAME(stat64)
-	ENTRY_SAME(ni_syscall)	/* was socketcall */
-	ENTRY_SAME(syslog)
-	/* even though manpage says struct timeval contains longs, ours has
-	 * time_t and suseconds_t -- both of which are safe wide/narrow */
-	ENTRY_COMP(setitimer)
-	ENTRY_COMP(getitimer)		/* 105 */
-	ENTRY_SAME(capget)
-	ENTRY_SAME(capset)
-	ENTRY_OURS(pread64)
-	ENTRY_OURS(pwrite64)
-	ENTRY_SAME(getcwd)		/* 110 */
-	ENTRY_SAME(vhangup)
-	ENTRY_SAME(fstat64)
-	ENTRY_SAME(vfork_wrapper)
-	/* struct rusage contains longs... */
-	ENTRY_COMP(wait4)
-	ENTRY_SAME(swapoff)		/* 115 */
-	ENTRY_COMP(sysinfo)
-	ENTRY_SAME(shutdown)
-	ENTRY_SAME(fsync)
-	ENTRY_SAME(madvise)
-	ENTRY_SAME(clone_wrapper)	/* 120 */
-	ENTRY_SAME(setdomainname)
-	ENTRY_COMP(sendfile)
-	/* struct sockaddr... */
-	ENTRY_SAME(recvfrom)
-	/* struct timex contains longs */
-	ENTRY_COMP(adjtimex)
-	ENTRY_SAME(mprotect)		/* 125 */
-	/* old_sigset_t forced to 32 bits.  Beware glibc sigset_t */
-	ENTRY_COMP(sigprocmask)
-	ENTRY_SAME(ni_syscall)	/* create_module */
-	ENTRY_SAME(init_module)
-	ENTRY_SAME(delete_module)
-	ENTRY_SAME(ni_syscall)		/* 130: get_kernel_syms */
-	/* time_t inside struct dqblk */
-	ENTRY_SAME(quotactl)
-	ENTRY_SAME(getpgid)
-	ENTRY_SAME(fchdir)
-	ENTRY_SAME(bdflush)
-	ENTRY_SAME(sysfs)		/* 135 */
-	ENTRY_OURS(personality)
-	ENTRY_SAME(ni_syscall)	/* for afs_syscall */
-	ENTRY_SAME(setfsuid)
-	ENTRY_SAME(setfsgid)
-	/* I think this might work */
-	ENTRY_SAME(llseek)		/* 140 */
-	ENTRY_COMP(getdents)
-	/* it is POSSIBLE that select will be OK because even though fd_set
-	 * contains longs, the macros and sizes are clever. */
-	ENTRY_COMP(select)
-	ENTRY_SAME(flock)
-	ENTRY_SAME(msync)
-	/* struct iovec contains pointers */
-	ENTRY_COMP(readv)		/* 145 */
-	ENTRY_COMP(writev)
-	ENTRY_SAME(getsid)
-	ENTRY_SAME(fdatasync)
-	/* struct __sysctl_args is a mess */
-	ENTRY_COMP(sysctl)
-	ENTRY_SAME(mlock)		/* 150 */
-	ENTRY_SAME(munlock)
-	ENTRY_SAME(mlockall)
-	ENTRY_SAME(munlockall)
-	/* struct sched_param is ok for now */
-	ENTRY_SAME(sched_setparam)
-	ENTRY_SAME(sched_getparam)	/* 155 */
-	ENTRY_SAME(sched_setscheduler)
-	ENTRY_SAME(sched_getscheduler)
-	ENTRY_SAME(sched_yield)
-	ENTRY_SAME(sched_get_priority_max)
-	ENTRY_SAME(sched_get_priority_min)	/* 160 */
-	ENTRY_COMP(sched_rr_get_interval)
-	ENTRY_COMP(nanosleep)
-	ENTRY_SAME(mremap)
-	ENTRY_SAME(setresuid)
-	ENTRY_SAME(getresuid)		/* 165 */
-	ENTRY_COMP(sigaltstack)
-	ENTRY_SAME(ni_syscall)		/* query_module */
-	ENTRY_SAME(poll)
-	/* structs contain pointers and an in_addr... */
-	ENTRY_SAME(ni_syscall)		/* was nfsservctl */
-	ENTRY_SAME(setresgid)		/* 170 */
-	ENTRY_SAME(getresgid)
-	ENTRY_SAME(prctl)
-	/* signals need a careful review */
-	ENTRY_SAME(rt_sigreturn_wrapper)
-	ENTRY_COMP(rt_sigaction)
-	ENTRY_COMP(rt_sigprocmask)	/* 175 */
-	ENTRY_COMP(rt_sigpending)
-	ENTRY_COMP(rt_sigtimedwait)
-	/* even though the struct siginfo_t is different, it appears like
-	 * all the paths use values which should be same wide and narrow.
-	 * Also the struct is padded to 128 bytes which means we don't have
-	 * to worry about faulting trying to copy in a larger 64-bit
-	 * struct from a 32-bit user-space app.
-	 */
-	ENTRY_COMP(rt_sigqueueinfo)
-	ENTRY_COMP(rt_sigsuspend)
-	ENTRY_SAME(chown)		/* 180 */
-	/* setsockopt() used by iptables: SO_SET_REPLACE/SO_SET_ADD_COUNTERS */
-	ENTRY_COMP(setsockopt)
-	ENTRY_COMP(getsockopt)
-	ENTRY_COMP(sendmsg)
-	ENTRY_COMP(recvmsg)
-	ENTRY_SAME(semop)		/* 185 */
-	ENTRY_SAME(semget)
-	ENTRY_COMP(semctl)
-	ENTRY_COMP(msgsnd)
-	ENTRY_COMP(msgrcv)
-	ENTRY_SAME(msgget)		/* 190 */
-	ENTRY_COMP(msgctl)
-	ENTRY_COMP(shmat)
-	ENTRY_SAME(shmdt)
-	ENTRY_SAME(shmget)
-	ENTRY_COMP(shmctl)		/* 195 */
-	ENTRY_SAME(ni_syscall)		/* streams1 */
-	ENTRY_SAME(ni_syscall)		/* streams2 */
-	ENTRY_SAME(lstat64)
-	ENTRY_OURS(truncate64)
-	ENTRY_OURS(ftruncate64)		/* 200 */
-	ENTRY_SAME(getdents64)
-	ENTRY_COMP(fcntl64)
-	ENTRY_SAME(ni_syscall)	/* attrctl -- dead */
-	ENTRY_SAME(ni_syscall)	/* acl_get -- dead */
-	ENTRY_SAME(ni_syscall)		/* 205 (acl_set -- dead) */
-	ENTRY_SAME(gettid)
-	ENTRY_OURS(readahead)
-	ENTRY_SAME(tkill)
-	ENTRY_COMP(sendfile64)
-	ENTRY_COMP(futex)		/* 210 */
-	ENTRY_COMP(sched_setaffinity)
-	ENTRY_COMP(sched_getaffinity)
-	ENTRY_SAME(ni_syscall)	/* set_thread_area */
-	ENTRY_SAME(ni_syscall)	/* get_thread_area */
-	ENTRY_COMP(io_setup)		/* 215 */
-	ENTRY_SAME(io_destroy)
-	ENTRY_COMP(io_getevents)
-	ENTRY_COMP(io_submit)
-	ENTRY_SAME(io_cancel)
-	ENTRY_SAME(ni_syscall)		/* 220: was alloc_hugepages */
-	ENTRY_SAME(ni_syscall)		/* was free_hugepages */
-	ENTRY_SAME(exit_group)
-	ENTRY_COMP(lookup_dcookie)
-	ENTRY_SAME(epoll_create)
-	ENTRY_SAME(epoll_ctl)		/* 225 */
-	ENTRY_SAME(epoll_wait)
- 	ENTRY_SAME(remap_file_pages)
-	ENTRY_COMP(semtimedop)
-	ENTRY_COMP(mq_open)
-	ENTRY_SAME(mq_unlink)		/* 230 */
-	ENTRY_COMP(mq_timedsend)
-	ENTRY_COMP(mq_timedreceive)
-	ENTRY_COMP(mq_notify)
-	ENTRY_COMP(mq_getsetattr)
-	ENTRY_COMP(waitid)		/* 235 */
-	ENTRY_OURS(fadvise64_64)
-	ENTRY_SAME(set_tid_address)
-	ENTRY_SAME(setxattr)
-	ENTRY_SAME(lsetxattr)
-	ENTRY_SAME(fsetxattr)		/* 240 */
-	ENTRY_SAME(getxattr)
-	ENTRY_SAME(lgetxattr)
-	ENTRY_SAME(fgetxattr)
-	ENTRY_SAME(listxattr)
-	ENTRY_SAME(llistxattr)		/* 245 */
-	ENTRY_SAME(flistxattr)
-	ENTRY_SAME(removexattr)
-	ENTRY_SAME(lremovexattr)
-	ENTRY_SAME(fremovexattr)
-	ENTRY_COMP(timer_create)	/* 250 */
-	ENTRY_COMP(timer_settime)
-	ENTRY_COMP(timer_gettime)
-	ENTRY_SAME(timer_getoverrun)
-	ENTRY_SAME(timer_delete)
-	ENTRY_COMP(clock_settime)	/* 255 */
-	ENTRY_COMP(clock_gettime)
-	ENTRY_COMP(clock_getres)
-	ENTRY_COMP(clock_nanosleep)
-	ENTRY_SAME(tgkill)
-	ENTRY_COMP(mbind)		/* 260 */
-	ENTRY_COMP(get_mempolicy)
-	ENTRY_COMP(set_mempolicy)
-	ENTRY_SAME(ni_syscall)	/* 263: reserved for vserver */
-	ENTRY_SAME(add_key)
-	ENTRY_SAME(request_key)		/* 265 */
-	ENTRY_COMP(keyctl)
-	ENTRY_SAME(ioprio_set)
-	ENTRY_SAME(ioprio_get)
-	ENTRY_SAME(inotify_init)
-	ENTRY_SAME(inotify_add_watch)	/* 270 */
-	ENTRY_SAME(inotify_rm_watch)
-	ENTRY_SAME(migrate_pages)
-	ENTRY_COMP(pselect6)
-	ENTRY_COMP(ppoll)
-	ENTRY_COMP(openat)		/* 275 */
-	ENTRY_SAME(mkdirat)
-	ENTRY_SAME(mknodat)
-	ENTRY_SAME(fchownat)
-	ENTRY_COMP(futimesat)
-	ENTRY_SAME(fstatat64)		/* 280 */
-	ENTRY_SAME(unlinkat)
-	ENTRY_SAME(renameat)
-	ENTRY_SAME(linkat)
-	ENTRY_SAME(symlinkat)
-	ENTRY_SAME(readlinkat)		/* 285 */
-	ENTRY_SAME(fchmodat)
-	ENTRY_SAME(faccessat)
-	ENTRY_SAME(unshare)
-	ENTRY_COMP(set_robust_list)
-	ENTRY_COMP(get_robust_list)	/* 290 */
-	ENTRY_SAME(splice)
-	ENTRY_OURS(sync_file_range)
-	ENTRY_SAME(tee)
-	ENTRY_COMP(vmsplice)
-	ENTRY_COMP(move_pages)		/* 295 */
-	ENTRY_SAME(getcpu)
-	ENTRY_COMP(epoll_pwait)
-	ENTRY_COMP(statfs64)
-	ENTRY_COMP(fstatfs64)
-	ENTRY_COMP(kexec_load)		/* 300 */
-	ENTRY_COMP(utimensat)
-	ENTRY_COMP(signalfd)
-	ENTRY_SAME(ni_syscall)		/* was timerfd */
-	ENTRY_SAME(eventfd)
-	ENTRY_OURS(fallocate)		/* 305 */
-	ENTRY_SAME(timerfd_create)
-	ENTRY_COMP(timerfd_settime)
-	ENTRY_COMP(timerfd_gettime)
-	ENTRY_COMP(signalfd4)
-	ENTRY_SAME(eventfd2)		/* 310 */
-	ENTRY_SAME(epoll_create1)
-	ENTRY_SAME(dup3)
-	ENTRY_SAME(pipe2)
-	ENTRY_SAME(inotify_init1)
-	ENTRY_COMP(preadv)		/* 315 */
-	ENTRY_COMP(pwritev)
-	ENTRY_COMP(rt_tgsigqueueinfo)
-	ENTRY_SAME(perf_event_open)
-	ENTRY_COMP(recvmmsg)
-	ENTRY_SAME(accept4)		/* 320 */
-	ENTRY_SAME(prlimit64)
-	ENTRY_SAME(fanotify_init)
-	ENTRY_DIFF(fanotify_mark)
-	ENTRY_COMP(clock_adjtime)
-	ENTRY_SAME(name_to_handle_at)	/* 325 */
-	ENTRY_COMP(open_by_handle_at)
-	ENTRY_SAME(syncfs)
-	ENTRY_SAME(setns)
-	ENTRY_COMP(sendmmsg)
-	ENTRY_COMP(process_vm_readv)	/* 330 */
-	ENTRY_COMP(process_vm_writev)
-	ENTRY_SAME(kcmp)
-	ENTRY_SAME(finit_module)
-	ENTRY_SAME(sched_setattr)
-	ENTRY_SAME(sched_getattr)	/* 335 */
-	ENTRY_COMP(utimes)
-	ENTRY_SAME(renameat2)
-	ENTRY_SAME(seccomp)
-	ENTRY_SAME(getrandom)
-	ENTRY_SAME(memfd_create)	/* 340 */
-	ENTRY_SAME(bpf)
-	ENTRY_COMP(execveat)
-	ENTRY_SAME(membarrier)
-	ENTRY_SAME(userfaultfd)
-	ENTRY_SAME(mlock2)		/* 345 */
-	ENTRY_SAME(copy_file_range)
-	ENTRY_COMP(preadv2)
-	ENTRY_COMP(pwritev2)
-	ENTRY_SAME(statx)
-	ENTRY_COMP(io_pgetevents)	/* 350 */
-
-
-.ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
-.error "size of syscall table does not fit value of __NR_Linux_syscalls"
-.endif
-
-#undef ENTRY_SAME
-#undef ENTRY_DIFF
-#undef ENTRY_UHOH
-#undef ENTRY_COMP
-#undef ENTRY_OURS
diff --git a/arch/parisc/kernel/syscall_table_32.S b/arch/parisc/kernel/syscall_table_32.S
new file mode 100644
index 0000000..6da0746
--- /dev/null
+++ b/arch/parisc/kernel/syscall_table_32.S
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/linkage.h>
+
+	.align 8
+ENTRY(sys_call_table)
+	.export sys_call_table,data
+#if !defined(CONFIG_64BIT)	
+#define __SYSCALL(nr, entry, nargs) .word entry
+#include <asm/syscall_table_32.h>
+#endif
+END(sys_call_table)
diff --git a/arch/parisc/kernel/syscall_table_64.S b/arch/parisc/kernel/syscall_table_64.S
new file mode 100644
index 0000000..896033c
--- /dev/null
+++ b/arch/parisc/kernel/syscall_table_64.S
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/linkage.h>
+
+	.align 8
+ENTRY(sys_call_table64)
+#if defined(CONFIG_64BIT) && defined(SYSCALL_TABLE_64BIT)
+#define __SYSCALL(nr, entry, nargs) .dword entry
+#include <asm/syscall_table_64.h>
+#endif
+END(sys_call_table64)
+
+	.align 8
+ENTRY(sys_call_tablec32)
+//	.export sys_call_table,data
+#if defined(CONFIG_64BIT) && !defined(SYSCALL_TABLE_64BIT)
+#define __SYSCALL(nr, entry, nargs) .dword entry
+#include <asm/syscall_table_c32.h>
+#endif
+END(sys_call_tablec32)
-- 
1.9.1



From - Thu Nov 08 21:41:55 2018
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Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 01/30] mips: switch to NO_BOOTMEM
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/780>

MIPS already has memblock support and all the memory is already registered
with it.

This patch replaces bootmem memory reservations with memblock ones and
removes the bootmem initialization.

Since memblock allocates memory in top-down mode, we ensure that memblock
limit is max_low_pfn to prevent allocations from the high memory.

To have the exceptions base in the lower 512M of the physical memory, its
allocation in arch/mips/kernel/traps.c::traps_init() is using bottom-up
mode.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
---
 arch/mips/Kconfig                      |  1 +
 arch/mips/kernel/setup.c               | 99 ++++++++--------------------------
 arch/mips/kernel/traps.c               |  3 ++
 arch/mips/loongson64/loongson-3/numa.c | 34 ++++++------
 arch/mips/sgi-ip27/ip27-memory.c       | 11 ++--
 5 files changed, 46 insertions(+), 102 deletions(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 54532f2..1b5fa1a 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -78,6 +78,7 @@ config MIPS
 	select RTC_LIB
 	select SYSCTL_EXCEPTION_TRACE
 	select VIRT_TO_BUS
+	select NO_BOOTMEM
 
 menu "Machine selection"
 
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 32fc11d..2fde53e 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -333,7 +333,7 @@ static void __init finalize_initrd(void)
 
 	maybe_bswap_initrd();
 
-	reserve_bootmem(__pa(initrd_start), size, BOOTMEM_DEFAULT);
+	memblock_reserve(__pa(initrd_start), size);
 	initrd_below_start_ok = 1;
 
 	pr_info("Initial ramdisk at: 0x%lx (%lu bytes)\n",
@@ -370,20 +370,10 @@ static void __init bootmem_init(void)
 
 #else  /* !CONFIG_SGI_IP27 */
 
-static unsigned long __init bootmap_bytes(unsigned long pages)
-{
-	unsigned long bytes = DIV_ROUND_UP(pages, 8);
-
-	return ALIGN(bytes, sizeof(long));
-}
-
 static void __init bootmem_init(void)
 {
 	unsigned long reserved_end;
-	unsigned long mapstart = ~0UL;
-	unsigned long bootmap_size;
 	phys_addr_t ramstart = PHYS_ADDR_MAX;
-	bool bootmap_valid = false;
 	int i;
 
 	/*
@@ -395,6 +385,8 @@ static void __init bootmem_init(void)
 	init_initrd();
 	reserved_end = (unsigned long) PFN_UP(__pa_symbol(&_end));
 
+	memblock_reserve(PHYS_OFFSET, reserved_end << PAGE_SHIFT);
+
 	/*
 	 * max_low_pfn is not a number of pages. The number of pages
 	 * of the system is given by 'max_low_pfn - min_low_pfn'.
@@ -442,9 +434,6 @@ static void __init bootmem_init(void)
 		if (initrd_end && end <= (unsigned long)PFN_UP(__pa(initrd_end)))
 			continue;
 #endif
-		if (start >= mapstart)
-			continue;
-		mapstart = max(reserved_end, start);
 	}
 
 	if (min_low_pfn >= max_low_pfn)
@@ -456,9 +445,11 @@ static void __init bootmem_init(void)
 	/*
 	 * Reserve any memory between the start of RAM and PHYS_OFFSET
 	 */
-	if (ramstart > PHYS_OFFSET)
+	if (ramstart > PHYS_OFFSET) {
 		add_memory_region(PHYS_OFFSET, ramstart - PHYS_OFFSET,
 				  BOOT_MEM_RESERVED);
+		memblock_reserve(PHYS_OFFSET, ramstart - PHYS_OFFSET);
+	}
 
 	if (min_low_pfn > ARCH_PFN_OFFSET) {
 		pr_info("Wasting %lu bytes for tracking %lu unused pages\n",
@@ -483,52 +474,6 @@ static void __init bootmem_init(void)
 		max_low_pfn = PFN_DOWN(HIGHMEM_START);
 	}
 
-#ifdef CONFIG_BLK_DEV_INITRD
-	/*
-	 * mapstart should be after initrd_end
-	 */
-	if (initrd_end)
-		mapstart = max(mapstart, (unsigned long)PFN_UP(__pa(initrd_end)));
-#endif
-
-	/*
-	 * check that mapstart doesn't overlap with any of
-	 * memory regions that have been reserved through eg. DTB
-	 */
-	bootmap_size = bootmap_bytes(max_low_pfn - min_low_pfn);
-
-	bootmap_valid = memory_region_available(PFN_PHYS(mapstart),
-						bootmap_size);
-	for (i = 0; i < boot_mem_map.nr_map && !bootmap_valid; i++) {
-		unsigned long mapstart_addr;
-
-		switch (boot_mem_map.map[i].type) {
-		case BOOT_MEM_RESERVED:
-			mapstart_addr = PFN_ALIGN(boot_mem_map.map[i].addr +
-						boot_mem_map.map[i].size);
-			if (PHYS_PFN(mapstart_addr) < mapstart)
-				break;
-
-			bootmap_valid = memory_region_available(mapstart_addr,
-								bootmap_size);
-			if (bootmap_valid)
-				mapstart = PHYS_PFN(mapstart_addr);
-			break;
-		default:
-			break;
-		}
-	}
-
-	if (!bootmap_valid)
-		panic("No memory area to place a bootmap bitmap");
-
-	/*
-	 * Initialize the boot-time allocator with low memory only.
-	 */
-	if (bootmap_size != init_bootmem_node(NODE_DATA(0), mapstart,
-					 min_low_pfn, max_low_pfn))
-		panic("Unexpected memory size required for bootmap");
-
 	for (i = 0; i < boot_mem_map.nr_map; i++) {
 		unsigned long start, end;
 
@@ -577,9 +522,9 @@ static void __init bootmem_init(void)
 		default:
 			/* Not usable memory */
 			if (start > min_low_pfn && end < max_low_pfn)
-				reserve_bootmem(boot_mem_map.map[i].addr,
-						boot_mem_map.map[i].size,
-						BOOTMEM_DEFAULT);
+				memblock_reserve(boot_mem_map.map[i].addr,
+						boot_mem_map.map[i].size);
+
 			continue;
 		}
 
@@ -602,15 +547,9 @@ static void __init bootmem_init(void)
 		size = end - start;
 
 		/* Register lowmem ranges */
-		free_bootmem(PFN_PHYS(start), size << PAGE_SHIFT);
 		memory_present(0, start, end);
 	}
 
-	/*
-	 * Reserve the bootmap memory.
-	 */
-	reserve_bootmem(PFN_PHYS(mapstart), bootmap_size, BOOTMEM_DEFAULT);
-
 #ifdef CONFIG_RELOCATABLE
 	/*
 	 * The kernel reserves all memory below its _end symbol as bootmem,
@@ -907,21 +846,29 @@ static void __init arch_mem_init(char **cmdline_p)
 	early_init_fdt_scan_reserved_mem();
 
 	bootmem_init();
+
+	/*
+	 * Prevent memblock from allocating high memory.
+	 * This cannot be done before max_low_pfn is detected, so up
+	 * to this point is possible to only reserve physical memory
+	 * with memblock_reserve; memblock_virt_alloc* can be used
+	 * only after this point
+	 */
+	memblock_set_current_limit(PFN_PHYS(max_low_pfn));
+
 #ifdef CONFIG_PROC_VMCORE
 	if (setup_elfcorehdr && setup_elfcorehdr_size) {
 		printk(KERN_INFO "kdump reserved memory at %lx-%lx\n",
 		       setup_elfcorehdr, setup_elfcorehdr_size);
-		reserve_bootmem(setup_elfcorehdr, setup_elfcorehdr_size,
-				BOOTMEM_DEFAULT);
+		memblock_reserve(setup_elfcorehdr, setup_elfcorehdr_size);
 	}
 #endif
 
 	mips_parse_crashkernel();
 #ifdef CONFIG_KEXEC
 	if (crashk_res.start != crashk_res.end)
-		reserve_bootmem(crashk_res.start,
-				crashk_res.end - crashk_res.start + 1,
-				BOOTMEM_DEFAULT);
+		memblock_reserve(crashk_res.start,
+				 crashk_res.end - crashk_res.start + 1);
 #endif
 	device_tree_init();
 	sparse_init();
@@ -931,7 +878,7 @@ static void __init arch_mem_init(char **cmdline_p)
 	/* Tell bootmem about cma reserved memblock section */
 	for_each_memblock(reserved, reg)
 		if (reg->size != 0)
-			reserve_bootmem(reg->base, reg->size, BOOTMEM_DEFAULT);
+			memblock_reserve(reg->base, reg->size);
 
 	reserve_bootmem_region(__pa_symbol(&__nosave_begin),
 			__pa_symbol(&__nosave_end)); /* Reserve for hibernation */
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 576aeef..5feef28 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -29,6 +29,7 @@
 #include <linux/spinlock.h>
 #include <linux/kallsyms.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/interrupt.h>
 #include <linux/ptrace.h>
 #include <linux/kgdb.h>
@@ -2260,8 +2261,10 @@ void __init trap_init(void)
 		unsigned long size = 0x200 + VECTORSPACING*64;
 		phys_addr_t ebase_pa;
 
+		memblock_set_bottom_up(true);
 		ebase = (unsigned long)
 			__alloc_bootmem(size, 1 << fls(size), 0);
+		memblock_set_bottom_up(false);
 
 		/*
 		 * Try to ensure ebase resides in KSeg0 if possible.
diff --git a/arch/mips/loongson64/loongson-3/numa.c b/arch/mips/loongson64/loongson-3/numa.c
index 9717106..c1e6ec5 100644
--- a/arch/mips/loongson64/loongson-3/numa.c
+++ b/arch/mips/loongson64/loongson-3/numa.c
@@ -180,43 +180,39 @@ static void __init szmem(unsigned int node)
 
 static void __init node_mem_init(unsigned int node)
 {
-	unsigned long bootmap_size;
 	unsigned long node_addrspace_offset;
-	unsigned long start_pfn, end_pfn, freepfn;
+	unsigned long start_pfn, end_pfn;
 
 	node_addrspace_offset = nid_to_addroffset(node);
 	pr_info("Node%d's addrspace_offset is 0x%lx\n",
 			node, node_addrspace_offset);
 
 	get_pfn_range_for_nid(node, &start_pfn, &end_pfn);
-	freepfn = start_pfn;
-	if (node == 0)
-		freepfn = PFN_UP(__pa_symbol(&_end)); /* kernel end address */
-	pr_info("Node%d: start_pfn=0x%lx, end_pfn=0x%lx, freepfn=0x%lx\n",
-		node, start_pfn, end_pfn, freepfn);
+	pr_info("Node%d: start_pfn=0x%lx, end_pfn=0x%lx\n",
+		node, start_pfn, end_pfn);
 
 	__node_data[node] = prealloc__node_data + node;
 
-	NODE_DATA(node)->bdata = &bootmem_node_data[node];
 	NODE_DATA(node)->node_start_pfn = start_pfn;
 	NODE_DATA(node)->node_spanned_pages = end_pfn - start_pfn;
 
-	bootmap_size = init_bootmem_node(NODE_DATA(node), freepfn,
-					start_pfn, end_pfn);
 	free_bootmem_with_active_regions(node, end_pfn);
-	if (node == 0) /* used by finalize_initrd() */
+
+	if (node == 0) {
+		/* kernel end address */
+		unsigned long kernel_end_pfn = PFN_UP(__pa_symbol(&_end));
+
+		/* used by finalize_initrd() */
 		max_low_pfn = end_pfn;
 
-	/* This is reserved for the kernel and bdata->node_bootmem_map */
-	reserve_bootmem_node(NODE_DATA(node), start_pfn << PAGE_SHIFT,
-		((freepfn - start_pfn) << PAGE_SHIFT) + bootmap_size,
-		BOOTMEM_DEFAULT);
+		/* Reserve the kernel text/data/bss */
+		memblock_reserve(start_pfn << PAGE_SHIFT,
+				 ((kernel_end_pfn - start_pfn) << PAGE_SHIFT));
 
-	if (node == 0 && node_end_pfn(0) >= (0xffffffff >> PAGE_SHIFT)) {
 		/* Reserve 0xfe000000~0xffffffff for RS780E integrated GPU */
-		reserve_bootmem_node(NODE_DATA(node),
-				(node_addrspace_offset | 0xfe000000),
-				32 << 20, BOOTMEM_DEFAULT);
+		if (node_end_pfn(0) >= (0xffffffff >> PAGE_SHIFT))
+			memblock_reserve((node_addrspace_offset | 0xfe000000),
+					 32 << 20);
 	}
 
 	sparse_memory_present_with_active_regions(node);
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c
index 59133d0a..6f7bef0 100644
--- a/arch/mips/sgi-ip27/ip27-memory.c
+++ b/arch/mips/sgi-ip27/ip27-memory.c
@@ -389,7 +389,6 @@ static void __init node_mem_init(cnodeid_t node)
 {
 	unsigned long slot_firstpfn = slot_getbasepfn(node, 0);
 	unsigned long slot_freepfn = node_getfirstfree(node);
-	unsigned long bootmap_size;
 	unsigned long start_pfn, end_pfn;
 
 	get_pfn_range_for_nid(node, &start_pfn, &end_pfn);
@@ -400,7 +399,6 @@ static void __init node_mem_init(cnodeid_t node)
 	__node_data[node] = __va(slot_freepfn << PAGE_SHIFT);
 	memset(__node_data[node], 0, PAGE_SIZE);
 
-	NODE_DATA(node)->bdata = &bootmem_node_data[node];
 	NODE_DATA(node)->node_start_pfn = start_pfn;
 	NODE_DATA(node)->node_spanned_pages = end_pfn - start_pfn;
 
@@ -409,12 +407,11 @@ static void __init node_mem_init(cnodeid_t node)
 	slot_freepfn += PFN_UP(sizeof(struct pglist_data) +
 			       sizeof(struct hub_data));
 
-	bootmap_size = init_bootmem_node(NODE_DATA(node), slot_freepfn,
-					start_pfn, end_pfn);
 	free_bootmem_with_active_regions(node, end_pfn);
-	reserve_bootmem_node(NODE_DATA(node), slot_firstpfn << PAGE_SHIFT,
-		((slot_freepfn - slot_firstpfn) << PAGE_SHIFT) + bootmap_size,
-		BOOTMEM_DEFAULT);
+
+	memblock_reserve(slot_firstpfn << PAGE_SHIFT,
+			 ((slot_freepfn - slot_firstpfn) << PAGE_SHIFT));
+
 	sparse_memory_present_with_active_regions(node);
 }
 
-- 
2.7.4

From - Thu Nov 08 21:41:55 2018
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X-Mozilla-Keys:                                                                                 
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 00/30] mm: remove bootmem allocator
Date: Fri, 14 Sep 2018 15:10:15 +0300
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
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To: linux-mm@kvack.org
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Hi,

These patches switch early memory management to use memblock directly
without any bootmem compatibility wrappers. As the result both bootmem and
nobootmem are removed.

The patchset survived allyesconfig builds on arm, arm64, i386, mips, nds32,
parisc, powerpc, riscv, s390 and x86 and most of the *_defconfig builds for
all architectures except unicore32.

The patchset is based on v4.19-rc3-mmotm-2018-09-12-16-40, so I needed a
small PSI fix from [1] for some of the builds.

I did my best to verify that the failures are not caused by my changes, but
I may have missed something. Most defconfig build failures I've seen were
caused by assembler being unhappy about unsupported opcode, wrong encoding
or something else. Some builds for allyesconfig also failed because of it
and others failed because of symbol mismatch in spi-sprd or n_hdlc.

I've done boot testing on real x86-64 and Power8 machines and on
qemu-system-alpha and qemu-system-mips64el VMs.

I've tried to keep the distribution list as small as possible, but it's
still pretty log; my apologies for spamming.

Changes since RFC:
* updated MIPS conversion to nobootmem: 
  - set memblock limit to max_low_pfn to avoid allocation attempts from
    high memory
  - use boottom-up mode for allocation of the exceptions base
* added elaborate changelogs
* updated boot-time-mm documentation

[1] https://lkml.org/lkml/2018/9/13/88

Mike Rapoport (30):
  mips: switch to NO_BOOTMEM
  mm: remove CONFIG_NO_BOOTMEM
  mm: remove CONFIG_HAVE_MEMBLOCK
  mm: remove bootmem allocator implementation.
  mm: nobootmem: remove dead code
  memblock: rename memblock_alloc{_nid,_try_nid} to memblock_phys_alloc*
  memblock: remove _virt from APIs returning virtual address
  memblock: replace alloc_bootmem_align with memblock_alloc
  memblock: replace alloc_bootmem_low with memblock_alloc_low
  memblock: replace __alloc_bootmem_node_nopanic with
    memblock_alloc_try_nid_nopanic
  memblock: replace alloc_bootmem_pages_nopanic with
    memblock_alloc_nopanic
  memblock: replace alloc_bootmem_low with memblock_alloc_low
  memblock: replace __alloc_bootmem_nopanic with
    memblock_alloc_from_nopanic
  memblock: add align parameter to memblock_alloc_node()
  memblock: replace alloc_bootmem_pages_node with memblock_alloc_node
  memblock: replace __alloc_bootmem_node with appropriate memblock_ API
  memblock: replace alloc_bootmem_node with memblock_alloc_node
  memblock: replace alloc_bootmem_low_pages with memblock_alloc_low
  memblock: replace alloc_bootmem_pages with memblock_alloc
  memblock: replace __alloc_bootmem with memblock_alloc_from
  memblock: replace alloc_bootmem with memblock_alloc
  mm: nobootmem: remove bootmem allocation APIs
  memblock: replace free_bootmem{_node} with memblock_free
  memblock: replace free_bootmem_late with memblock_free_late
  memblock: rename free_all_bootmem to memblock_free_all
  memblock: rename __free_pages_bootmem to memblock_free_pages
  mm: remove nobootmem
  memblock: replace BOOTMEM_ALLOC_* with MEMBLOCK variants
  mm: remove include/linux/bootmem.h
  docs/boot-time-mm: remove bootmem documentation

 Documentation/core-api/boot-time-mm.rst     |  71 +--
 arch/alpha/Kconfig                          |   2 -
 arch/alpha/kernel/core_cia.c                |   4 +-
 arch/alpha/kernel/core_irongate.c           |   4 +-
 arch/alpha/kernel/core_marvel.c             |   6 +-
 arch/alpha/kernel/core_titan.c              |   2 +-
 arch/alpha/kernel/core_tsunami.c            |   2 +-
 arch/alpha/kernel/pci-noop.c                |   6 +-
 arch/alpha/kernel/pci.c                     |   6 +-
 arch/alpha/kernel/pci_iommu.c               |  14 +-
 arch/alpha/kernel/setup.c                   |   3 +-
 arch/alpha/kernel/sys_nautilus.c            |   2 +-
 arch/alpha/mm/init.c                        |   4 +-
 arch/alpha/mm/numa.c                        |   1 -
 arch/arc/Kconfig                            |   2 -
 arch/arc/kernel/unwind.c                    |   6 +-
 arch/arc/mm/highmem.c                       |   4 +-
 arch/arc/mm/init.c                          |   3 +-
 arch/arm/Kconfig                            |   2 -
 arch/arm/kernel/devtree.c                   |   1 -
 arch/arm/kernel/setup.c                     |   5 +-
 arch/arm/mach-omap2/omap_hwmod.c            |   8 +-
 arch/arm/mm/dma-mapping.c                   |   1 -
 arch/arm/mm/init.c                          |   3 +-
 arch/arm/mm/mmu.c                           |   2 +-
 arch/arm/xen/mm.c                           |   1 -
 arch/arm/xen/p2m.c                          |   2 +-
 arch/arm64/Kconfig                          |   2 -
 arch/arm64/kernel/acpi.c                    |   1 -
 arch/arm64/kernel/acpi_numa.c               |   1 -
 arch/arm64/kernel/setup.c                   |   3 +-
 arch/arm64/mm/dma-mapping.c                 |   2 +-
 arch/arm64/mm/init.c                        |   5 +-
 arch/arm64/mm/kasan_init.c                  |   3 +-
 arch/arm64/mm/mmu.c                         |   2 +-
 arch/arm64/mm/numa.c                        |   5 +-
 arch/c6x/Kconfig                            |   2 -
 arch/c6x/kernel/setup.c                     |   1 -
 arch/c6x/mm/dma-coherent.c                  |   4 +-
 arch/c6x/mm/init.c                          |   7 +-
 arch/h8300/Kconfig                          |   2 -
 arch/h8300/kernel/setup.c                   |   1 -
 arch/h8300/mm/init.c                        |   6 +-
 arch/hexagon/Kconfig                        |   2 -
 arch/hexagon/kernel/dma.c                   |   2 +-
 arch/hexagon/kernel/setup.c                 |   2 +-
 arch/hexagon/mm/init.c                      |   3 +-
 arch/ia64/Kconfig                           |   2 -
 arch/ia64/kernel/crash.c                    |   2 +-
 arch/ia64/kernel/efi.c                      |   2 +-
 arch/ia64/kernel/ia64_ksyms.c               |   2 +-
 arch/ia64/kernel/iosapic.c                  |   2 +-
 arch/ia64/kernel/mca.c                      |  10 +-
 arch/ia64/kernel/mca_drv.c                  |   2 +-
 arch/ia64/kernel/setup.c                    |   1 -
 arch/ia64/kernel/smpboot.c                  |   2 +-
 arch/ia64/kernel/topology.c                 |   2 +-
 arch/ia64/kernel/unwind.c                   |   2 +-
 arch/ia64/mm/contig.c                       |   6 +-
 arch/ia64/mm/discontig.c                    |   7 +-
 arch/ia64/mm/init.c                         |  11 +-
 arch/ia64/mm/numa.c                         |   2 +-
 arch/ia64/mm/tlb.c                          |   6 +-
 arch/ia64/pci/pci.c                         |   2 +-
 arch/ia64/sn/kernel/bte.c                   |   2 +-
 arch/ia64/sn/kernel/io_common.c             |   9 +-
 arch/ia64/sn/kernel/setup.c                 |   6 +-
 arch/m68k/Kconfig                           |   2 -
 arch/m68k/atari/stram.c                     |   5 +-
 arch/m68k/coldfire/m54xx.c                  |   2 +-
 arch/m68k/kernel/setup_mm.c                 |   1 -
 arch/m68k/kernel/setup_no.c                 |   1 -
 arch/m68k/kernel/uboot.c                    |   2 +-
 arch/m68k/mm/init.c                         |   6 +-
 arch/m68k/mm/mcfmmu.c                       |   5 +-
 arch/m68k/mm/motorola.c                     |   8 +-
 arch/m68k/mm/sun3mmu.c                      |   6 +-
 arch/m68k/sun3/config.c                     |   2 +-
 arch/m68k/sun3/dvma.c                       |   2 +-
 arch/m68k/sun3/mmu_emu.c                    |   2 +-
 arch/m68k/sun3/sun3dvma.c                   |   5 +-
 arch/m68k/sun3x/dvma.c                      |   2 +-
 arch/microblaze/Kconfig                     |   2 -
 arch/microblaze/mm/consistent.c             |   2 +-
 arch/microblaze/mm/init.c                   |   7 +-
 arch/microblaze/pci/pci-common.c            |   2 +-
 arch/mips/Kconfig                           |   1 -
 arch/mips/ar7/memory.c                      |   2 +-
 arch/mips/ath79/setup.c                     |   2 +-
 arch/mips/bcm63xx/prom.c                    |   2 +-
 arch/mips/bcm63xx/setup.c                   |   2 +-
 arch/mips/bmips/setup.c                     |   2 +-
 arch/mips/cavium-octeon/dma-octeon.c        |   4 +-
 arch/mips/dec/prom/memory.c                 |   2 +-
 arch/mips/emma/common/prom.c                |   2 +-
 arch/mips/fw/arc/memory.c                   |   2 +-
 arch/mips/jazz/jazzdma.c                    |   2 +-
 arch/mips/kernel/crash.c                    |   2 +-
 arch/mips/kernel/crash_dump.c               |   2 +-
 arch/mips/kernel/prom.c                     |   2 +-
 arch/mips/kernel/setup.c                    | 104 +---
 arch/mips/kernel/traps.c                    |   6 +-
 arch/mips/kernel/vpe.c                      |   2 +-
 arch/mips/kvm/commpage.c                    |   2 +-
 arch/mips/kvm/dyntrans.c                    |   2 +-
 arch/mips/kvm/emulate.c                     |   2 +-
 arch/mips/kvm/interrupt.c                   |   2 +-
 arch/mips/kvm/mips.c                        |   2 +-
 arch/mips/lantiq/prom.c                     |   2 +-
 arch/mips/lasat/prom.c                      |   2 +-
 arch/mips/loongson64/common/init.c          |   2 +-
 arch/mips/loongson64/loongson-3/numa.c      |  37 +-
 arch/mips/mm/init.c                         |   7 +-
 arch/mips/mm/pgtable-32.c                   |   2 +-
 arch/mips/mti-malta/malta-memory.c          |   2 +-
 arch/mips/netlogic/xlp/dt.c                 |   2 +-
 arch/mips/pci/pci-legacy.c                  |   2 +-
 arch/mips/pci/pci.c                         |   2 +-
 arch/mips/ralink/of.c                       |   2 +-
 arch/mips/rb532/prom.c                      |   2 +-
 arch/mips/sgi-ip27/ip27-memory.c            |  14 +-
 arch/mips/sibyte/common/cfe.c               |   2 +-
 arch/mips/sibyte/swarm/setup.c              |   2 +-
 arch/mips/txx9/rbtx4938/prom.c              |   2 +-
 arch/nds32/Kconfig                          |   2 -
 arch/nds32/kernel/setup.c                   |   3 +-
 arch/nds32/mm/highmem.c                     |   2 +-
 arch/nds32/mm/init.c                        |  13 +-
 arch/nios2/Kconfig                          |   2 -
 arch/nios2/kernel/prom.c                    |   2 +-
 arch/nios2/kernel/setup.c                   |   1 -
 arch/nios2/mm/init.c                        |   4 +-
 arch/openrisc/Kconfig                       |   2 -
 arch/openrisc/kernel/setup.c                |   3 +-
 arch/openrisc/mm/init.c                     |   7 +-
 arch/openrisc/mm/ioremap.c                  |   2 +-
 arch/parisc/Kconfig                         |   2 -
 arch/parisc/mm/init.c                       |   3 +-
 arch/powerpc/Kconfig                        |   2 -
 arch/powerpc/kernel/dt_cpu_ftrs.c           |   4 +-
 arch/powerpc/kernel/paca.c                  |   2 +-
 arch/powerpc/kernel/pci_32.c                |   4 +-
 arch/powerpc/kernel/prom.c                  |   2 +-
 arch/powerpc/kernel/setup-common.c          |   3 +-
 arch/powerpc/kernel/setup_32.c              |  10 +-
 arch/powerpc/kernel/setup_64.c              |  11 +-
 arch/powerpc/lib/alloc.c                    |   4 +-
 arch/powerpc/mm/hugetlbpage.c               |   1 -
 arch/powerpc/mm/mem.c                       |   5 +-
 arch/powerpc/mm/mmu_context_nohash.c        |   8 +-
 arch/powerpc/mm/numa.c                      |   5 +-
 arch/powerpc/mm/pgtable_32.c                |   2 +-
 arch/powerpc/mm/ppc_mmu_32.c                |   2 +-
 arch/powerpc/platforms/pasemi/iommu.c       |   2 +-
 arch/powerpc/platforms/powermac/nvram.c     |   4 +-
 arch/powerpc/platforms/powernv/opal.c       |   2 +-
 arch/powerpc/platforms/powernv/pci-ioda.c   |   9 +-
 arch/powerpc/platforms/ps3/setup.c          |   4 +-
 arch/powerpc/sysdev/dart_iommu.c            |   2 +-
 arch/powerpc/sysdev/msi_bitmap.c            |   4 +-
 arch/riscv/Kconfig                          |   2 -
 arch/riscv/mm/init.c                        |   5 +-
 arch/s390/Kconfig                           |   2 -
 arch/s390/kernel/crash_dump.c               |   5 +-
 arch/s390/kernel/setup.c                    |  16 +-
 arch/s390/kernel/smp.c                      |   5 +-
 arch/s390/kernel/topology.c                 |   6 +-
 arch/s390/kernel/vdso.c                     |   2 +-
 arch/s390/mm/extmem.c                       |   2 +-
 arch/s390/mm/init.c                         |   5 +-
 arch/s390/mm/vmem.c                         |   7 +-
 arch/s390/numa/mode_emu.c                   |   3 +-
 arch/s390/numa/numa.c                       |   3 +-
 arch/s390/numa/toptree.c                    |   4 +-
 arch/sh/Kconfig                             |   2 -
 arch/sh/mm/init.c                           |   9 +-
 arch/sh/mm/ioremap_fixed.c                  |   2 +-
 arch/sparc/Kconfig                          |   2 -
 arch/sparc/kernel/mdesc.c                   |   7 +-
 arch/sparc/kernel/prom_32.c                 |   4 +-
 arch/sparc/kernel/prom_64.c                 |   2 +-
 arch/sparc/kernel/setup_64.c                |  12 +-
 arch/sparc/kernel/smp_64.c                  |  18 +-
 arch/sparc/mm/init_32.c                     |   5 +-
 arch/sparc/mm/init_64.c                     |  27 +-
 arch/sparc/mm/srmmu.c                       |  12 +-
 arch/um/Kconfig                             |   2 -
 arch/um/drivers/net_kern.c                  |   4 +-
 arch/um/drivers/vector_kern.c               |   4 +-
 arch/um/kernel/initrd.c                     |   4 +-
 arch/um/kernel/mem.c                        |  16 +-
 arch/um/kernel/physmem.c                    |   1 -
 arch/unicore32/Kconfig                      |   2 -
 arch/unicore32/kernel/hibernate.c           |   2 +-
 arch/unicore32/kernel/setup.c               |   5 +-
 arch/unicore32/mm/init.c                    |   7 +-
 arch/unicore32/mm/mmu.c                     |   3 +-
 arch/x86/Kconfig                            |   4 -
 arch/x86/kernel/acpi/boot.c                 |   5 +-
 arch/x86/kernel/acpi/sleep.c                |   1 -
 arch/x86/kernel/apic/apic.c                 |   2 +-
 arch/x86/kernel/apic/io_apic.c              |   7 +-
 arch/x86/kernel/cpu/common.c                |   2 +-
 arch/x86/kernel/e820.c                      |   5 +-
 arch/x86/kernel/mpparse.c                   |   1 -
 arch/x86/kernel/pci-dma.c                   |   2 +-
 arch/x86/kernel/pci-swiotlb.c               |   2 +-
 arch/x86/kernel/pvclock.c                   |   2 +-
 arch/x86/kernel/setup.c                     |   1 -
 arch/x86/kernel/setup_percpu.c              |  14 +-
 arch/x86/kernel/smpboot.c                   |   2 +-
 arch/x86/kernel/tce_64.c                    |   6 +-
 arch/x86/mm/amdtopology.c                   |   1 -
 arch/x86/mm/fault.c                         |   2 +-
 arch/x86/mm/highmem_32.c                    |   4 +-
 arch/x86/mm/init.c                          |   1 -
 arch/x86/mm/init_32.c                       |   5 +-
 arch/x86/mm/init_64.c                       |   7 +-
 arch/x86/mm/ioremap.c                       |   2 +-
 arch/x86/mm/kasan_init_64.c                 |  11 +-
 arch/x86/mm/numa.c                          |   3 +-
 arch/x86/mm/numa_32.c                       |   1 -
 arch/x86/mm/numa_64.c                       |   2 +-
 arch/x86/mm/numa_emulation.c                |   1 -
 arch/x86/mm/pageattr-test.c                 |   2 +-
 arch/x86/mm/pageattr.c                      |   2 +-
 arch/x86/mm/pat.c                           |   2 +-
 arch/x86/mm/physaddr.c                      |   2 +-
 arch/x86/pci/i386.c                         |   2 +-
 arch/x86/platform/efi/efi.c                 |   3 +-
 arch/x86/platform/efi/efi_64.c              |   2 +-
 arch/x86/platform/efi/quirks.c              |   7 +-
 arch/x86/platform/olpc/olpc_dt.c            |   4 +-
 arch/x86/power/hibernate_32.c               |   2 +-
 arch/x86/xen/enlighten.c                    |   2 +-
 arch/x86/xen/enlighten_pv.c                 |   3 +-
 arch/x86/xen/mmu_pv.c                       |   2 +-
 arch/x86/xen/p2m.c                          |   6 +-
 arch/xtensa/Kconfig                         |   2 -
 arch/xtensa/kernel/pci.c                    |   2 +-
 arch/xtensa/mm/cache.c                      |   2 +-
 arch/xtensa/mm/init.c                       |   4 +-
 arch/xtensa/mm/kasan_init.c                 |   5 +-
 arch/xtensa/mm/mmu.c                        |   4 +-
 arch/xtensa/platforms/iss/network.c         |   4 +-
 arch/xtensa/platforms/iss/setup.c           |   2 +-
 block/blk-settings.c                        |   2 +-
 block/bounce.c                              |   2 +-
 drivers/acpi/numa.c                         |   1 -
 drivers/acpi/tables.c                       |   3 +-
 drivers/base/platform.c                     |   2 +-
 drivers/clk/ti/clk.c                        |   4 +-
 drivers/firmware/dmi_scan.c                 |   2 +-
 drivers/firmware/efi/apple-properties.c     |   4 +-
 drivers/firmware/efi/memmap.c               |   2 +-
 drivers/firmware/iscsi_ibft_find.c          |   2 +-
 drivers/firmware/memmap.c                   |   4 +-
 drivers/iommu/mtk_iommu.c                   |   2 +-
 drivers/iommu/mtk_iommu_v1.c                |   2 +-
 drivers/macintosh/smu.c                     |   7 +-
 drivers/mtd/ar7part.c                       |   2 +-
 drivers/net/arcnet/arc-rimi.c               |   2 +-
 drivers/net/arcnet/com20020-isa.c           |   2 +-
 drivers/net/arcnet/com90io.c                |   2 +-
 drivers/of/fdt.c                            |   5 +-
 drivers/of/of_reserved_mem.c                |  13 +-
 drivers/of/unittest.c                       |   4 +-
 drivers/s390/char/fs3270.c                  |   2 +-
 drivers/s390/char/tty3270.c                 |   2 +-
 drivers/s390/cio/cmf.c                      |   2 +-
 drivers/s390/virtio/virtio_ccw.c            |   2 +-
 drivers/sfi/sfi_core.c                      |   2 +-
 drivers/staging/android/ion/Kconfig         |   2 +-
 drivers/tty/serial/cpm_uart/cpm_uart_core.c |   2 +-
 drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c |   2 +-
 drivers/tty/serial/cpm_uart/cpm_uart_cpm2.c |   2 +-
 drivers/usb/early/xhci-dbc.c                |  14 +-
 drivers/xen/balloon.c                       |   2 +-
 drivers/xen/events/events_base.c            |   2 +-
 drivers/xen/grant-table.c                   |   2 +-
 drivers/xen/swiotlb-xen.c                   |   8 +-
 drivers/xen/xen-selfballoon.c               |   2 +-
 fs/dcache.c                                 |   2 +-
 fs/inode.c                                  |   2 +-
 fs/namespace.c                              |   2 +-
 fs/proc/kcore.c                             |   2 +-
 fs/proc/page.c                              |   2 +-
 fs/proc/vmcore.c                            |   2 +-
 fs/pstore/Kconfig                           |   1 -
 include/linux/bootmem.h                     | 404 --------------
 include/linux/memblock.h                    | 159 +++++-
 include/linux/mm.h                          |   2 +-
 include/linux/mmzone.h                      |   5 +-
 init/main.c                                 |  12 +-
 kernel/dma/swiotlb.c                        |  10 +-
 kernel/futex.c                              |   2 +-
 kernel/locking/qspinlock_paravirt.h         |   2 +-
 kernel/pid.c                                |   2 +-
 kernel/power/snapshot.c                     |   4 +-
 kernel/printk/printk.c                      |   5 +-
 kernel/profile.c                            |   2 +-
 lib/Kconfig.debug                           |   3 +-
 lib/cpumask.c                               |   4 +-
 mm/Kconfig                                  |   8 +-
 mm/Makefile                                 |   8 +-
 mm/bootmem.c                                | 811 ----------------------------
 mm/hugetlb.c                                |   6 +-
 mm/internal.h                               |   2 +-
 mm/kasan/kasan_init.c                       |   7 +-
 mm/kmemleak.c                               |   2 +-
 mm/memblock.c                               | 153 +++++-
 mm/memory_hotplug.c                         |   1 -
 mm/nobootmem.c                              | 445 ---------------
 mm/page_alloc.c                             |  17 +-
 mm/page_ext.c                               |   6 +-
 mm/page_idle.c                              |   2 +-
 mm/page_owner.c                             |   2 +-
 mm/page_poison.c                            |   2 +-
 mm/percpu.c                                 |  30 +-
 mm/sparse-vmemmap.c                         |   6 +-
 mm/sparse.c                                 |  18 +-
 net/ipv4/inet_hashtables.c                  |   2 +-
 net/ipv4/tcp.c                              |   2 +-
 net/ipv4/udp.c                              |   2 +-
 net/sctp/protocol.c                         |   2 +-
 net/xfrm/xfrm_hash.c                        |   2 +-
 326 files changed, 866 insertions(+), 2539 deletions(-)
 delete mode 100644 include/linux/bootmem.h
 delete mode 100644 mm/bootmem.c
 delete mode 100644 mm/nobootmem.c

-- 
2.7.4

From - Thu Nov 08 21:41:55 2018
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 08/30] memblock: replace alloc_bootmem_align with
 memblock_alloc
Date: Fri, 14 Sep 2018 15:10:23 +0300
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/782>

The functions are equivalent, just the later does not require nobootmem
translation layer.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/x86/xen/p2m.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index d6d74ef..5de761b 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -182,7 +182,7 @@ static void p2m_init_identity(unsigned long *p2m, unsigned long pfn)
 static void * __ref alloc_p2m_page(void)
 {
 	if (unlikely(!slab_is_available()))
-		return alloc_bootmem_align(PAGE_SIZE, PAGE_SIZE);
+		return memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 
 	return (void *)__get_free_page(GFP_KERNEL);
 }
-- 
2.7.4

From - Thu Nov 08 21:41:56 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 07/30] memblock: remove _virt from APIs returning virtual
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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Xref: news.gmane.org gmane.linux.kernel.arc:4346 gmane.linux.kernel.mm:203319 gmane.linux.ports.mips.general:66621 gmane.linux.ports.ia64:29216 gmane.linux.ports.sh.devel:57492 gmane.linux.ports.sparc:28404 gmane.linux.ports.hexagon:1833 gmane.linux.ports.riscv:783 gmane.linux.ports.alpha:5222 gmane.linux.ports.arm.kernel:674191 gmane.linux.ports.parisc:28944 gmane.linux.kernel:2870762 gmane.linux.ports.ppc64.devel:162479
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4346>

The conversion is done using

sed -i 's@memblock_virt_alloc@memblock_alloc@g' \
	$(git grep -l memblock_virt_alloc)

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
---
 arch/arm/kernel/setup.c                   |  4 ++--
 arch/arm/mach-omap2/omap_hwmod.c          |  6 ++---
 arch/arm64/mm/kasan_init.c                |  2 +-
 arch/arm64/mm/numa.c                      |  2 +-
 arch/mips/kernel/setup.c                  |  2 +-
 arch/powerpc/kernel/pci_32.c              |  2 +-
 arch/powerpc/lib/alloc.c                  |  2 +-
 arch/powerpc/mm/mmu_context_nohash.c      |  6 ++---
 arch/powerpc/platforms/powermac/nvram.c   |  2 +-
 arch/powerpc/platforms/powernv/pci-ioda.c |  6 ++---
 arch/powerpc/platforms/ps3/setup.c        |  2 +-
 arch/powerpc/sysdev/msi_bitmap.c          |  2 +-
 arch/s390/kernel/setup.c                  | 12 +++++-----
 arch/s390/kernel/smp.c                    |  2 +-
 arch/s390/kernel/topology.c               |  4 ++--
 arch/s390/numa/mode_emu.c                 |  2 +-
 arch/s390/numa/toptree.c                  |  2 +-
 arch/x86/mm/kasan_init_64.c               |  4 ++--
 arch/xtensa/mm/kasan_init.c               |  2 +-
 drivers/clk/ti/clk.c                      |  2 +-
 drivers/firmware/memmap.c                 |  2 +-
 drivers/of/fdt.c                          |  2 +-
 drivers/of/unittest.c                     |  2 +-
 include/linux/bootmem.h                   | 38 +++++++++++++++----------------
 init/main.c                               |  6 ++---
 kernel/dma/swiotlb.c                      |  8 +++----
 kernel/power/snapshot.c                   |  2 +-
 kernel/printk/printk.c                    |  4 ++--
 lib/cpumask.c                             |  2 +-
 mm/hugetlb.c                              |  2 +-
 mm/kasan/kasan_init.c                     |  2 +-
 mm/memblock.c                             | 26 ++++++++++-----------
 mm/page_alloc.c                           |  8 +++----
 mm/page_ext.c                             |  2 +-
 mm/percpu.c                               | 28 +++++++++++------------
 mm/sparse-vmemmap.c                       |  2 +-
 mm/sparse.c                               | 12 +++++-----
 37 files changed, 108 insertions(+), 108 deletions(-)

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 4c249cb..39e6090 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -857,7 +857,7 @@ static void __init request_standard_resources(const struct machine_desc *mdesc)
 		 */
 		boot_alias_start = phys_to_idmap(start);
 		if (arm_has_idmap_alias() && boot_alias_start != IDMAP_INVALID_ADDR) {
-			res = memblock_virt_alloc(sizeof(*res), 0);
+			res = memblock_alloc(sizeof(*res), 0);
 			res->name = "System RAM (boot alias)";
 			res->start = boot_alias_start;
 			res->end = phys_to_idmap(end);
@@ -865,7 +865,7 @@ static void __init request_standard_resources(const struct machine_desc *mdesc)
 			request_resource(&iomem_resource, res);
 		}
 
-		res = memblock_virt_alloc(sizeof(*res), 0);
+		res = memblock_alloc(sizeof(*res), 0);
 		res->name  = "System RAM";
 		res->start = start;
 		res->end = end;
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 56a1fe9..1f9b34a 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -726,7 +726,7 @@ static int __init _setup_clkctrl_provider(struct device_node *np)
 	u64 size;
 	int i;
 
-	provider = memblock_virt_alloc(sizeof(*provider), 0);
+	provider = memblock_alloc(sizeof(*provider), 0);
 	if (!provider)
 		return -ENOMEM;
 
@@ -736,12 +736,12 @@ static int __init _setup_clkctrl_provider(struct device_node *np)
 		of_property_count_elems_of_size(np, "reg", sizeof(u32)) / 2;
 
 	provider->addr =
-		memblock_virt_alloc(sizeof(void *) * provider->num_addrs, 0);
+		memblock_alloc(sizeof(void *) * provider->num_addrs, 0);
 	if (!provider->addr)
 		return -ENOMEM;
 
 	provider->size =
-		memblock_virt_alloc(sizeof(u32) * provider->num_addrs, 0);
+		memblock_alloc(sizeof(u32) * provider->num_addrs, 0);
 	if (!provider->size)
 		return -ENOMEM;
 
diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index 1214587..2391560 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -38,7 +38,7 @@ static pgd_t tmp_pg_dir[PTRS_PER_PGD] __initdata __aligned(PGD_SIZE);
 
 static phys_addr_t __init kasan_alloc_zeroed_page(int node)
 {
-	void *p = memblock_virt_alloc_try_nid(PAGE_SIZE, PAGE_SIZE,
+	void *p = memblock_alloc_try_nid(PAGE_SIZE, PAGE_SIZE,
 					      __pa(MAX_DMA_ADDRESS),
 					      MEMBLOCK_ALLOC_ACCESSIBLE, node);
 	return __pa(p);
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index e5aacd6..8f2e0e8 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -168,7 +168,7 @@ static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size,
 {
 	int nid = early_cpu_to_node(cpu);
 
-	return  memblock_virt_alloc_try_nid(size, align,
+	return  memblock_alloc_try_nid(size, align,
 			__pa(MAX_DMA_ADDRESS), MEMBLOCK_ALLOC_ACCESSIBLE, nid);
 }
 
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 2fde53e..a717c90 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -851,7 +851,7 @@ static void __init arch_mem_init(char **cmdline_p)
 	 * Prevent memblock from allocating high memory.
 	 * This cannot be done before max_low_pfn is detected, so up
 	 * to this point is possible to only reserve physical memory
-	 * with memblock_reserve; memblock_virt_alloc* can be used
+	 * with memblock_reserve; memblock_alloc* can be used
 	 * only after this point
 	 */
 	memblock_set_current_limit(PFN_PHYS(max_low_pfn));
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index d63b488..2fb4781 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -204,7 +204,7 @@ pci_create_OF_bus_map(void)
 	struct property* of_prop;
 	struct device_node *dn;
 
-	of_prop = memblock_virt_alloc(sizeof(struct property) + 256, 0);
+	of_prop = memblock_alloc(sizeof(struct property) + 256, 0);
 	dn = of_find_node_by_path("/");
 	if (dn) {
 		memset(of_prop, -1, sizeof(struct property) + 256);
diff --git a/arch/powerpc/lib/alloc.c b/arch/powerpc/lib/alloc.c
index 06796de..bf87d6e 100644
--- a/arch/powerpc/lib/alloc.c
+++ b/arch/powerpc/lib/alloc.c
@@ -14,7 +14,7 @@ void * __ref zalloc_maybe_bootmem(size_t size, gfp_t mask)
 	if (slab_is_available())
 		p = kzalloc(size, mask);
 	else {
-		p = memblock_virt_alloc(size, 0);
+		p = memblock_alloc(size, 0);
 	}
 	return p;
 }
diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index 4d80239..954f198 100644
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -461,10 +461,10 @@ void __init mmu_context_init(void)
 	/*
 	 * Allocate the maps used by context management
 	 */
-	context_map = memblock_virt_alloc(CTX_MAP_SIZE, 0);
-	context_mm = memblock_virt_alloc(sizeof(void *) * (LAST_CONTEXT + 1), 0);
+	context_map = memblock_alloc(CTX_MAP_SIZE, 0);
+	context_mm = memblock_alloc(sizeof(void *) * (LAST_CONTEXT + 1), 0);
 #ifdef CONFIG_SMP
-	stale_map[boot_cpuid] = memblock_virt_alloc(CTX_MAP_SIZE, 0);
+	stale_map[boot_cpuid] = memblock_alloc(CTX_MAP_SIZE, 0);
 
 	cpuhp_setup_state_nocalls(CPUHP_POWERPC_MMU_CTX_PREPARE,
 				  "powerpc/mmu/ctx:prepare",
diff --git a/arch/powerpc/platforms/powermac/nvram.c b/arch/powerpc/platforms/powermac/nvram.c
index 60b03a1..f45b369 100644
--- a/arch/powerpc/platforms/powermac/nvram.c
+++ b/arch/powerpc/platforms/powermac/nvram.c
@@ -513,7 +513,7 @@ static int __init core99_nvram_setup(struct device_node *dp, unsigned long addr)
 		printk(KERN_ERR "nvram: no address\n");
 		return -EINVAL;
 	}
-	nvram_image = memblock_virt_alloc(NVRAM_SIZE, 0);
+	nvram_image = memblock_alloc(NVRAM_SIZE, 0);
 	nvram_data = ioremap(addr, NVRAM_SIZE*2);
 	nvram_naddrs = 1; /* Make sure we get the correct case */
 
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index cde7102..23a67b5 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -3770,7 +3770,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	phb_id = be64_to_cpup(prop64);
 	pr_debug("  PHB-ID  : 0x%016llx\n", phb_id);
 
-	phb = memblock_virt_alloc(sizeof(*phb), 0);
+	phb = memblock_alloc(sizeof(*phb), 0);
 
 	/* Allocate PCI controller */
 	phb->hose = hose = pcibios_alloc_controller(np);
@@ -3816,7 +3816,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	else
 		phb->diag_data_size = PNV_PCI_DIAG_BUF_SIZE;
 
-	phb->diag_data = memblock_virt_alloc(phb->diag_data_size, 0);
+	phb->diag_data = memblock_alloc(phb->diag_data_size, 0);
 
 	/* Parse 32-bit and IO ranges (if any) */
 	pci_process_bridge_OF_ranges(hose, np, !hose->global_number);
@@ -3875,7 +3875,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	}
 	pemap_off = size;
 	size += phb->ioda.total_pe_num * sizeof(struct pnv_ioda_pe);
-	aux = memblock_virt_alloc(size, 0);
+	aux = memblock_alloc(size, 0);
 	phb->ioda.pe_alloc = aux;
 	phb->ioda.m64_segmap = aux + m64map_off;
 	phb->ioda.m32_segmap = aux + m32map_off;
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 77a3752..1251985 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -126,7 +126,7 @@ static void __init prealloc(struct ps3_prealloc *p)
 	if (!p->size)
 		return;
 
-	p->address = memblock_virt_alloc(p->size, p->align);
+	p->address = memblock_alloc(p->size, p->align);
 
 	printk(KERN_INFO "%s: %lu bytes at %p\n", p->name, p->size,
 	       p->address);
diff --git a/arch/powerpc/sysdev/msi_bitmap.c b/arch/powerpc/sysdev/msi_bitmap.c
index e64a411..349a9ff 100644
--- a/arch/powerpc/sysdev/msi_bitmap.c
+++ b/arch/powerpc/sysdev/msi_bitmap.c
@@ -128,7 +128,7 @@ int __ref msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count,
 	if (bmp->bitmap_from_slab)
 		bmp->bitmap = kzalloc(size, GFP_KERNEL);
 	else {
-		bmp->bitmap = memblock_virt_alloc(size, 0);
+		bmp->bitmap = memblock_alloc(size, 0);
 		/* the bitmap won't be freed from memblock allocator */
 		kmemleak_not_leak(bmp->bitmap);
 	}
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 2f2ee43..2e29456 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -311,7 +311,7 @@ static void __init setup_lowcore(void)
 	 * Setup lowcore for boot cpu
 	 */
 	BUILD_BUG_ON(sizeof(struct lowcore) != LC_PAGES * PAGE_SIZE);
-	lc = memblock_virt_alloc_low(sizeof(*lc), sizeof(*lc));
+	lc = memblock_alloc_low(sizeof(*lc), sizeof(*lc));
 	lc->restart_psw.mask = PSW_KERNEL_BITS;
 	lc->restart_psw.addr = (unsigned long) restart_int_handler;
 	lc->external_new_psw.mask = PSW_KERNEL_BITS |
@@ -332,10 +332,10 @@ static void __init setup_lowcore(void)
 	lc->kernel_stack = ((unsigned long) &init_thread_union)
 		+ THREAD_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs);
 	lc->async_stack = (unsigned long)
-		memblock_virt_alloc(ASYNC_SIZE, ASYNC_SIZE)
+		memblock_alloc(ASYNC_SIZE, ASYNC_SIZE)
 		+ ASYNC_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs);
 	lc->panic_stack = (unsigned long)
-		memblock_virt_alloc(PAGE_SIZE, PAGE_SIZE)
+		memblock_alloc(PAGE_SIZE, PAGE_SIZE)
 		+ PAGE_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs);
 	lc->current_task = (unsigned long)&init_task;
 	lc->lpp = LPP_MAGIC;
@@ -357,7 +357,7 @@ static void __init setup_lowcore(void)
 	lc->last_update_timer = S390_lowcore.last_update_timer;
 	lc->last_update_clock = S390_lowcore.last_update_clock;
 
-	restart_stack = memblock_virt_alloc(ASYNC_SIZE, ASYNC_SIZE);
+	restart_stack = memblock_alloc(ASYNC_SIZE, ASYNC_SIZE);
 	restart_stack += ASYNC_SIZE;
 
 	/*
@@ -423,7 +423,7 @@ static void __init setup_resources(void)
 	bss_resource.end = (unsigned long) __bss_stop - 1;
 
 	for_each_memblock(memory, reg) {
-		res = memblock_virt_alloc(sizeof(*res), 8);
+		res = memblock_alloc(sizeof(*res), 8);
 		res->flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM;
 
 		res->name = "System RAM";
@@ -437,7 +437,7 @@ static void __init setup_resources(void)
 			    std_res->start > res->end)
 				continue;
 			if (std_res->end > res->end) {
-				sub_res = memblock_virt_alloc(sizeof(*sub_res), 8);
+				sub_res = memblock_alloc(sizeof(*sub_res), 8);
 				*sub_res = *std_res;
 				sub_res->end = res->end;
 				std_res->start = res->end + 1;
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 2f8f7d7..8f3aafc 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -751,7 +751,7 @@ void __init smp_detect_cpus(void)
 	u16 address;
 
 	/* Get CPU information */
-	info = memblock_virt_alloc(sizeof(*info), 8);
+	info = memblock_alloc(sizeof(*info), 8);
 	smp_get_core_info(info, 1);
 	/* Find boot CPU type */
 	if (sclp.has_core_type) {
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index e8184a1..799a918 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -519,7 +519,7 @@ static void __init alloc_masks(struct sysinfo_15_1_x *info,
 		nr_masks *= info->mag[TOPOLOGY_NR_MAG - offset - 1 - i];
 	nr_masks = max(nr_masks, 1);
 	for (i = 0; i < nr_masks; i++) {
-		mask->next = memblock_virt_alloc(sizeof(*mask->next), 8);
+		mask->next = memblock_alloc(sizeof(*mask->next), 8);
 		mask = mask->next;
 	}
 }
@@ -537,7 +537,7 @@ void __init topology_init_early(void)
 	}
 	if (!MACHINE_HAS_TOPOLOGY)
 		goto out;
-	tl_info = memblock_virt_alloc(PAGE_SIZE, PAGE_SIZE);
+	tl_info = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 	info = tl_info;
 	store_topology(info);
 	pr_info("The CPU configuration topology of the machine is: %d %d %d %d %d %d / %d\n",
diff --git a/arch/s390/numa/mode_emu.c b/arch/s390/numa/mode_emu.c
index 83b222c..5a381fc 100644
--- a/arch/s390/numa/mode_emu.c
+++ b/arch/s390/numa/mode_emu.c
@@ -313,7 +313,7 @@ static void __ref create_core_to_node_map(void)
 {
 	int i;
 
-	emu_cores = memblock_virt_alloc(sizeof(*emu_cores), 8);
+	emu_cores = memblock_alloc(sizeof(*emu_cores), 8);
 	for (i = 0; i < ARRAY_SIZE(emu_cores->to_node_id); i++)
 		emu_cores->to_node_id[i] = NODE_ID_FREE;
 }
diff --git a/arch/s390/numa/toptree.c b/arch/s390/numa/toptree.c
index 21d1e8a..7f61cc3 100644
--- a/arch/s390/numa/toptree.c
+++ b/arch/s390/numa/toptree.c
@@ -34,7 +34,7 @@ struct toptree __ref *toptree_alloc(int level, int id)
 	if (slab_is_available())
 		res = kzalloc(sizeof(*res), GFP_KERNEL);
 	else
-		res = memblock_virt_alloc(sizeof(*res), 8);
+		res = memblock_alloc(sizeof(*res), 8);
 	if (!res)
 		return res;
 
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index e3e7752..77b857c 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -28,10 +28,10 @@ static p4d_t tmp_p4d_table[MAX_PTRS_PER_P4D] __initdata __aligned(PAGE_SIZE);
 static __init void *early_alloc(size_t size, int nid, bool panic)
 {
 	if (panic)
-		return memblock_virt_alloc_try_nid(size, size,
+		return memblock_alloc_try_nid(size, size,
 			__pa(MAX_DMA_ADDRESS), BOOTMEM_ALLOC_ACCESSIBLE, nid);
 	else
-		return memblock_virt_alloc_try_nid_nopanic(size, size,
+		return memblock_alloc_try_nid_nopanic(size, size,
 			__pa(MAX_DMA_ADDRESS), BOOTMEM_ALLOC_ACCESSIBLE, nid);
 }
 
diff --git a/arch/xtensa/mm/kasan_init.c b/arch/xtensa/mm/kasan_init.c
index 6b532b6..1a30a25 100644
--- a/arch/xtensa/mm/kasan_init.c
+++ b/arch/xtensa/mm/kasan_init.c
@@ -43,7 +43,7 @@ static void __init populate(void *start, void *end)
 	unsigned long vaddr = (unsigned long)start;
 	pgd_t *pgd = pgd_offset_k(vaddr);
 	pmd_t *pmd = pmd_offset(pgd, vaddr);
-	pte_t *pte = memblock_virt_alloc(n_pages * sizeof(pte_t), PAGE_SIZE);
+	pte_t *pte = memblock_alloc(n_pages * sizeof(pte_t), PAGE_SIZE);
 
 	pr_debug("%s: %p - %p\n", __func__, start, end);
 
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index 33001a7..a0136ed 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -347,7 +347,7 @@ void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem)
 {
 	struct clk_iomap *io;
 
-	io = memblock_virt_alloc(sizeof(*io), 0);
+	io = memblock_alloc(sizeof(*io), 0);
 
 	io->mem = mem;
 
diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
index 5de3ed2..03cead6 100644
--- a/drivers/firmware/memmap.c
+++ b/drivers/firmware/memmap.c
@@ -333,7 +333,7 @@ int __init firmware_map_add_early(u64 start, u64 end, const char *type)
 {
 	struct firmware_map_entry *entry;
 
-	entry = memblock_virt_alloc(sizeof(struct firmware_map_entry), 0);
+	entry = memblock_alloc(sizeof(struct firmware_map_entry), 0);
 	if (WARN_ON(!entry))
 		return -ENOMEM;
 
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index bd841bb..34dd878 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -1198,7 +1198,7 @@ int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base,
 
 static void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
 {
-	return memblock_virt_alloc(size, align);
+	return memblock_alloc(size, align);
 }
 
 bool __init early_init_dt_verify(void *params)
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 35b7886..07c9217 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -2182,7 +2182,7 @@ static struct device_node *overlay_base_root;
 
 static void * __init dt_alloc_memory(u64 size, u64 align)
 {
-	return memblock_virt_alloc(size, align);
+	return memblock_alloc(size, align);
 }
 
 /*
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index b74bafd1..7d91f0f 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -95,78 +95,78 @@ extern void *__alloc_bootmem_low(unsigned long size,
 #define BOOTMEM_ALLOC_ANYWHERE		(~(phys_addr_t)0)
 
 /* FIXME: Move to memblock.h at a point where we remove nobootmem.c */
-void *memblock_virt_alloc_try_nid_raw(phys_addr_t size, phys_addr_t align,
+void *memblock_alloc_try_nid_raw(phys_addr_t size, phys_addr_t align,
 				      phys_addr_t min_addr,
 				      phys_addr_t max_addr, int nid);
-void *memblock_virt_alloc_try_nid_nopanic(phys_addr_t size,
+void *memblock_alloc_try_nid_nopanic(phys_addr_t size,
 		phys_addr_t align, phys_addr_t min_addr,
 		phys_addr_t max_addr, int nid);
-void *memblock_virt_alloc_try_nid(phys_addr_t size, phys_addr_t align,
+void *memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align,
 		phys_addr_t min_addr, phys_addr_t max_addr, int nid);
 void __memblock_free_early(phys_addr_t base, phys_addr_t size);
 void __memblock_free_late(phys_addr_t base, phys_addr_t size);
 
-static inline void * __init memblock_virt_alloc(
+static inline void * __init memblock_alloc(
 					phys_addr_t size,  phys_addr_t align)
 {
-	return memblock_virt_alloc_try_nid(size, align, BOOTMEM_LOW_LIMIT,
+	return memblock_alloc_try_nid(size, align, BOOTMEM_LOW_LIMIT,
 					    BOOTMEM_ALLOC_ACCESSIBLE,
 					    NUMA_NO_NODE);
 }
 
-static inline void * __init memblock_virt_alloc_raw(
+static inline void * __init memblock_alloc_raw(
 					phys_addr_t size,  phys_addr_t align)
 {
-	return memblock_virt_alloc_try_nid_raw(size, align, BOOTMEM_LOW_LIMIT,
+	return memblock_alloc_try_nid_raw(size, align, BOOTMEM_LOW_LIMIT,
 					    BOOTMEM_ALLOC_ACCESSIBLE,
 					    NUMA_NO_NODE);
 }
 
-static inline void * __init memblock_virt_alloc_nopanic(
+static inline void * __init memblock_alloc_nopanic(
 					phys_addr_t size, phys_addr_t align)
 {
-	return memblock_virt_alloc_try_nid_nopanic(size, align,
+	return memblock_alloc_try_nid_nopanic(size, align,
 						    BOOTMEM_LOW_LIMIT,
 						    BOOTMEM_ALLOC_ACCESSIBLE,
 						    NUMA_NO_NODE);
 }
 
-static inline void * __init memblock_virt_alloc_low(
+static inline void * __init memblock_alloc_low(
 					phys_addr_t size, phys_addr_t align)
 {
-	return memblock_virt_alloc_try_nid(size, align,
+	return memblock_alloc_try_nid(size, align,
 						   BOOTMEM_LOW_LIMIT,
 						   ARCH_LOW_ADDRESS_LIMIT,
 						   NUMA_NO_NODE);
 }
-static inline void * __init memblock_virt_alloc_low_nopanic(
+static inline void * __init memblock_alloc_low_nopanic(
 					phys_addr_t size, phys_addr_t align)
 {
-	return memblock_virt_alloc_try_nid_nopanic(size, align,
+	return memblock_alloc_try_nid_nopanic(size, align,
 						   BOOTMEM_LOW_LIMIT,
 						   ARCH_LOW_ADDRESS_LIMIT,
 						   NUMA_NO_NODE);
 }
 
-static inline void * __init memblock_virt_alloc_from_nopanic(
+static inline void * __init memblock_alloc_from_nopanic(
 		phys_addr_t size, phys_addr_t align, phys_addr_t min_addr)
 {
-	return memblock_virt_alloc_try_nid_nopanic(size, align, min_addr,
+	return memblock_alloc_try_nid_nopanic(size, align, min_addr,
 						    BOOTMEM_ALLOC_ACCESSIBLE,
 						    NUMA_NO_NODE);
 }
 
-static inline void * __init memblock_virt_alloc_node(
+static inline void * __init memblock_alloc_node(
 						phys_addr_t size, int nid)
 {
-	return memblock_virt_alloc_try_nid(size, 0, BOOTMEM_LOW_LIMIT,
+	return memblock_alloc_try_nid(size, 0, BOOTMEM_LOW_LIMIT,
 					    BOOTMEM_ALLOC_ACCESSIBLE, nid);
 }
 
-static inline void * __init memblock_virt_alloc_node_nopanic(
+static inline void * __init memblock_alloc_node_nopanic(
 						phys_addr_t size, int nid)
 {
-	return memblock_virt_alloc_try_nid_nopanic(size, 0, BOOTMEM_LOW_LIMIT,
+	return memblock_alloc_try_nid_nopanic(size, 0, BOOTMEM_LOW_LIMIT,
 						    BOOTMEM_ALLOC_ACCESSIBLE,
 						    nid);
 }
diff --git a/init/main.c b/init/main.c
index 18f8f01..d0b92bd 100644
--- a/init/main.c
+++ b/init/main.c
@@ -375,10 +375,10 @@ static inline void smp_prepare_cpus(unsigned int maxcpus) { }
 static void __init setup_command_line(char *command_line)
 {
 	saved_command_line =
-		memblock_virt_alloc(strlen(boot_command_line) + 1, 0);
+		memblock_alloc(strlen(boot_command_line) + 1, 0);
 	initcall_command_line =
-		memblock_virt_alloc(strlen(boot_command_line) + 1, 0);
-	static_command_line = memblock_virt_alloc(strlen(command_line) + 1, 0);
+		memblock_alloc(strlen(boot_command_line) + 1, 0);
+	static_command_line = memblock_alloc(strlen(command_line) + 1, 0);
 	strcpy(saved_command_line, boot_command_line);
 	strcpy(static_command_line, command_line);
 }
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 4f8a6db..d9fd062 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -215,7 +215,7 @@ int __init swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose)
 	/*
 	 * Get the overflow emergency buffer
 	 */
-	v_overflow_buffer = memblock_virt_alloc_low_nopanic(
+	v_overflow_buffer = memblock_alloc_low_nopanic(
 						PAGE_ALIGN(io_tlb_overflow),
 						PAGE_SIZE);
 	if (!v_overflow_buffer)
@@ -228,10 +228,10 @@ int __init swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose)
 	 * to find contiguous free memory regions of size up to IO_TLB_SEGSIZE
 	 * between io_tlb_start and io_tlb_end.
 	 */
-	io_tlb_list = memblock_virt_alloc(
+	io_tlb_list = memblock_alloc(
 				PAGE_ALIGN(io_tlb_nslabs * sizeof(int)),
 				PAGE_SIZE);
-	io_tlb_orig_addr = memblock_virt_alloc(
+	io_tlb_orig_addr = memblock_alloc(
 				PAGE_ALIGN(io_tlb_nslabs * sizeof(phys_addr_t)),
 				PAGE_SIZE);
 	for (i = 0; i < io_tlb_nslabs; i++) {
@@ -266,7 +266,7 @@ swiotlb_init(int verbose)
 	bytes = io_tlb_nslabs << IO_TLB_SHIFT;
 
 	/* Get IO TLB memory from the low pages */
-	vstart = memblock_virt_alloc_low_nopanic(PAGE_ALIGN(bytes), PAGE_SIZE);
+	vstart = memblock_alloc_low_nopanic(PAGE_ALIGN(bytes), PAGE_SIZE);
 	if (vstart && !swiotlb_init_with_tbl(vstart, io_tlb_nslabs, verbose))
 		return;
 
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 3d37c27..34116a6 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -963,7 +963,7 @@ void __init __register_nosave_region(unsigned long start_pfn,
 		BUG_ON(!region);
 	} else {
 		/* This allocation cannot fail */
-		region = memblock_virt_alloc(sizeof(struct nosave_region), 0);
+		region = memblock_alloc(sizeof(struct nosave_region), 0);
 	}
 	region->start_pfn = start_pfn;
 	region->end_pfn = end_pfn;
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 9bf5404..3efcbe518 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1106,9 +1106,9 @@ void __init setup_log_buf(int early)
 
 	if (early) {
 		new_log_buf =
-			memblock_virt_alloc(new_log_buf_len, LOG_ALIGN);
+			memblock_alloc(new_log_buf_len, LOG_ALIGN);
 	} else {
-		new_log_buf = memblock_virt_alloc_nopanic(new_log_buf_len,
+		new_log_buf = memblock_alloc_nopanic(new_log_buf_len,
 							  LOG_ALIGN);
 	}
 
diff --git a/lib/cpumask.c b/lib/cpumask.c
index beca624..1405cb2 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -163,7 +163,7 @@ EXPORT_SYMBOL(zalloc_cpumask_var);
  */
 void __init alloc_bootmem_cpumask_var(cpumask_var_t *mask)
 {
-	*mask = memblock_virt_alloc(cpumask_size(), 0);
+	*mask = memblock_alloc(cpumask_size(), 0);
 }
 
 /**
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 5c390f5..3b63370 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2100,7 +2100,7 @@ int __alloc_bootmem_huge_page(struct hstate *h)
 	for_each_node_mask_to_alloc(h, nr_nodes, node, &node_states[N_MEMORY]) {
 		void *addr;
 
-		addr = memblock_virt_alloc_try_nid_raw(
+		addr = memblock_alloc_try_nid_raw(
 				huge_page_size(h), huge_page_size(h),
 				0, BOOTMEM_ALLOC_ACCESSIBLE, node);
 		if (addr) {
diff --git a/mm/kasan/kasan_init.c b/mm/kasan/kasan_init.c
index 7a2a2f1..24d734b 100644
--- a/mm/kasan/kasan_init.c
+++ b/mm/kasan/kasan_init.c
@@ -83,7 +83,7 @@ static inline bool kasan_zero_page_entry(pte_t pte)
 
 static __init void *early_alloc(size_t size, int node)
 {
-	return memblock_virt_alloc_try_nid(size, size, __pa(MAX_DMA_ADDRESS),
+	return memblock_alloc_try_nid(size, size, __pa(MAX_DMA_ADDRESS),
 					BOOTMEM_ALLOC_ACCESSIBLE, node);
 }
 
diff --git a/mm/memblock.c b/mm/memblock.c
index f8b6b79..3a21476 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1370,7 +1370,7 @@ phys_addr_t __init memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t ali
 }
 
 /**
- * memblock_virt_alloc_internal - allocate boot memory block
+ * memblock_alloc_internal - allocate boot memory block
  * @size: size of memory block to be allocated in bytes
  * @align: alignment of the region and block's size
  * @min_addr: the lower bound of the memory region to allocate (phys address)
@@ -1396,7 +1396,7 @@ phys_addr_t __init memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t ali
  * Return:
  * Virtual address of allocated memory block on success, NULL on failure.
  */
-static void * __init memblock_virt_alloc_internal(
+static void * __init memblock_alloc_internal(
 				phys_addr_t size, phys_addr_t align,
 				phys_addr_t min_addr, phys_addr_t max_addr,
 				int nid)
@@ -1463,7 +1463,7 @@ static void * __init memblock_virt_alloc_internal(
 }
 
 /**
- * memblock_virt_alloc_try_nid_raw - allocate boot memory block without zeroing
+ * memblock_alloc_try_nid_raw - allocate boot memory block without zeroing
  * memory and without panicking
  * @size: size of memory block to be allocated in bytes
  * @align: alignment of the region and block's size
@@ -1481,7 +1481,7 @@ static void * __init memblock_virt_alloc_internal(
  * Return:
  * Virtual address of allocated memory block on success, NULL on failure.
  */
-void * __init memblock_virt_alloc_try_nid_raw(
+void * __init memblock_alloc_try_nid_raw(
 			phys_addr_t size, phys_addr_t align,
 			phys_addr_t min_addr, phys_addr_t max_addr,
 			int nid)
@@ -1492,7 +1492,7 @@ void * __init memblock_virt_alloc_try_nid_raw(
 		     __func__, (u64)size, (u64)align, nid, &min_addr,
 		     &max_addr, (void *)_RET_IP_);
 
-	ptr = memblock_virt_alloc_internal(size, align,
+	ptr = memblock_alloc_internal(size, align,
 					   min_addr, max_addr, nid);
 #ifdef CONFIG_DEBUG_VM
 	if (ptr && size > 0)
@@ -1502,7 +1502,7 @@ void * __init memblock_virt_alloc_try_nid_raw(
 }
 
 /**
- * memblock_virt_alloc_try_nid_nopanic - allocate boot memory block
+ * memblock_alloc_try_nid_nopanic - allocate boot memory block
  * @size: size of memory block to be allocated in bytes
  * @align: alignment of the region and block's size
  * @min_addr: the lower bound of the memory region from where the allocation
@@ -1518,7 +1518,7 @@ void * __init memblock_virt_alloc_try_nid_raw(
  * Return:
  * Virtual address of allocated memory block on success, NULL on failure.
  */
-void * __init memblock_virt_alloc_try_nid_nopanic(
+void * __init memblock_alloc_try_nid_nopanic(
 				phys_addr_t size, phys_addr_t align,
 				phys_addr_t min_addr, phys_addr_t max_addr,
 				int nid)
@@ -1529,7 +1529,7 @@ void * __init memblock_virt_alloc_try_nid_nopanic(
 		     __func__, (u64)size, (u64)align, nid, &min_addr,
 		     &max_addr, (void *)_RET_IP_);
 
-	ptr = memblock_virt_alloc_internal(size, align,
+	ptr = memblock_alloc_internal(size, align,
 					   min_addr, max_addr, nid);
 	if (ptr)
 		memset(ptr, 0, size);
@@ -1537,7 +1537,7 @@ void * __init memblock_virt_alloc_try_nid_nopanic(
 }
 
 /**
- * memblock_virt_alloc_try_nid - allocate boot memory block with panicking
+ * memblock_alloc_try_nid - allocate boot memory block with panicking
  * @size: size of memory block to be allocated in bytes
  * @align: alignment of the region and block's size
  * @min_addr: the lower bound of the memory region from where the allocation
@@ -1547,14 +1547,14 @@ void * __init memblock_virt_alloc_try_nid_nopanic(
  *	      allocate only from memory limited by memblock.current_limit value
  * @nid: nid of the free area to find, %NUMA_NO_NODE for any node
  *
- * Public panicking version of memblock_virt_alloc_try_nid_nopanic()
+ * Public panicking version of memblock_alloc_try_nid_nopanic()
  * which provides debug information (including caller info), if enabled,
  * and panics if the request can not be satisfied.
  *
  * Return:
  * Virtual address of allocated memory block on success, NULL on failure.
  */
-void * __init memblock_virt_alloc_try_nid(
+void * __init memblock_alloc_try_nid(
 			phys_addr_t size, phys_addr_t align,
 			phys_addr_t min_addr, phys_addr_t max_addr,
 			int nid)
@@ -1564,7 +1564,7 @@ void * __init memblock_virt_alloc_try_nid(
 	memblock_dbg("%s: %llu bytes align=0x%llx nid=%d from=%pa max_addr=%pa %pF\n",
 		     __func__, (u64)size, (u64)align, nid, &min_addr,
 		     &max_addr, (void *)_RET_IP_);
-	ptr = memblock_virt_alloc_internal(size, align,
+	ptr = memblock_alloc_internal(size, align,
 					   min_addr, max_addr, nid);
 	if (ptr) {
 		memset(ptr, 0, size);
@@ -1581,7 +1581,7 @@ void * __init memblock_virt_alloc_try_nid(
  * @base: phys starting address of the  boot memory block
  * @size: size of the boot memory block in bytes
  *
- * Free boot memory block previously allocated by memblock_virt_alloc_xx() API.
+ * Free boot memory block previously allocated by memblock_alloc_xx() API.
  * The freeing memory will not be released to the buddy allocator.
  */
 void __init __memblock_free_early(phys_addr_t base, phys_addr_t size)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 3f3094d..7658a6f 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6121,7 +6121,7 @@ static void __ref setup_usemap(struct pglist_data *pgdat,
 	zone->pageblock_flags = NULL;
 	if (usemapsize)
 		zone->pageblock_flags =
-			memblock_virt_alloc_node_nopanic(usemapsize,
+			memblock_alloc_node_nopanic(usemapsize,
 							 pgdat->node_id);
 }
 #else
@@ -6363,7 +6363,7 @@ static void __ref alloc_node_mem_map(struct pglist_data *pgdat)
 		end = pgdat_end_pfn(pgdat);
 		end = ALIGN(end, MAX_ORDER_NR_PAGES);
 		size =  (end - start) * sizeof(struct page);
-		map = memblock_virt_alloc_node_nopanic(size, pgdat->node_id);
+		map = memblock_alloc_node_nopanic(size, pgdat->node_id);
 		pgdat->node_mem_map = map + offset;
 	}
 	pr_debug("%s: node %d, pgdat %08lx, node_mem_map %08lx\n",
@@ -7616,9 +7616,9 @@ void *__init alloc_large_system_hash(const char *tablename,
 		size = bucketsize << log2qty;
 		if (flags & HASH_EARLY) {
 			if (flags & HASH_ZERO)
-				table = memblock_virt_alloc_nopanic(size, 0);
+				table = memblock_alloc_nopanic(size, 0);
 			else
-				table = memblock_virt_alloc_raw(size, 0);
+				table = memblock_alloc_raw(size, 0);
 		} else if (hashdist) {
 			table = __vmalloc(size, gfp_flags, PAGE_KERNEL);
 		} else {
diff --git a/mm/page_ext.c b/mm/page_ext.c
index a9826da..e77c0f0 100644
--- a/mm/page_ext.c
+++ b/mm/page_ext.c
@@ -161,7 +161,7 @@ static int __init alloc_node_page_ext(int nid)
 
 	table_size = get_entry_size() * nr_pages;
 
-	base = memblock_virt_alloc_try_nid_nopanic(
+	base = memblock_alloc_try_nid_nopanic(
 			table_size, PAGE_SIZE, __pa(MAX_DMA_ADDRESS),
 			BOOTMEM_ALLOC_ACCESSIBLE, nid);
 	if (!base)
diff --git a/mm/percpu.c b/mm/percpu.c
index a749d4d..86bb9f6 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1101,7 +1101,7 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr,
 	region_size = ALIGN(start_offset + map_size, lcm_align);
 
 	/* allocate chunk */
-	chunk = memblock_virt_alloc(sizeof(struct pcpu_chunk) +
+	chunk = memblock_alloc(sizeof(struct pcpu_chunk) +
 				    BITS_TO_LONGS(region_size >> PAGE_SHIFT),
 				    0);
 
@@ -1114,11 +1114,11 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr,
 	chunk->nr_pages = region_size >> PAGE_SHIFT;
 	region_bits = pcpu_chunk_map_bits(chunk);
 
-	chunk->alloc_map = memblock_virt_alloc(BITS_TO_LONGS(region_bits) *
+	chunk->alloc_map = memblock_alloc(BITS_TO_LONGS(region_bits) *
 					       sizeof(chunk->alloc_map[0]), 0);
-	chunk->bound_map = memblock_virt_alloc(BITS_TO_LONGS(region_bits + 1) *
+	chunk->bound_map = memblock_alloc(BITS_TO_LONGS(region_bits + 1) *
 					       sizeof(chunk->bound_map[0]), 0);
-	chunk->md_blocks = memblock_virt_alloc(pcpu_chunk_nr_blocks(chunk) *
+	chunk->md_blocks = memblock_alloc(pcpu_chunk_nr_blocks(chunk) *
 					       sizeof(chunk->md_blocks[0]), 0);
 	pcpu_init_md_blocks(chunk);
 
@@ -1887,7 +1887,7 @@ struct pcpu_alloc_info * __init pcpu_alloc_alloc_info(int nr_groups,
 			  __alignof__(ai->groups[0].cpu_map[0]));
 	ai_size = base_size + nr_units * sizeof(ai->groups[0].cpu_map[0]);
 
-	ptr = memblock_virt_alloc_nopanic(PFN_ALIGN(ai_size), PAGE_SIZE);
+	ptr = memblock_alloc_nopanic(PFN_ALIGN(ai_size), PAGE_SIZE);
 	if (!ptr)
 		return NULL;
 	ai = ptr;
@@ -2074,12 +2074,12 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
 	PCPU_SETUP_BUG_ON(pcpu_verify_alloc_info(ai) < 0);
 
 	/* process group information and build config tables accordingly */
-	group_offsets = memblock_virt_alloc(ai->nr_groups *
+	group_offsets = memblock_alloc(ai->nr_groups *
 					     sizeof(group_offsets[0]), 0);
-	group_sizes = memblock_virt_alloc(ai->nr_groups *
+	group_sizes = memblock_alloc(ai->nr_groups *
 					   sizeof(group_sizes[0]), 0);
-	unit_map = memblock_virt_alloc(nr_cpu_ids * sizeof(unit_map[0]), 0);
-	unit_off = memblock_virt_alloc(nr_cpu_ids * sizeof(unit_off[0]), 0);
+	unit_map = memblock_alloc(nr_cpu_ids * sizeof(unit_map[0]), 0);
+	unit_off = memblock_alloc(nr_cpu_ids * sizeof(unit_off[0]), 0);
 
 	for (cpu = 0; cpu < nr_cpu_ids; cpu++)
 		unit_map[cpu] = UINT_MAX;
@@ -2143,7 +2143,7 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
 	 * empty chunks.
 	 */
 	pcpu_nr_slots = __pcpu_size_to_slot(pcpu_unit_size) + 2;
-	pcpu_slot = memblock_virt_alloc(
+	pcpu_slot = memblock_alloc(
 			pcpu_nr_slots * sizeof(pcpu_slot[0]), 0);
 	for (i = 0; i < pcpu_nr_slots; i++)
 		INIT_LIST_HEAD(&pcpu_slot[i]);
@@ -2457,7 +2457,7 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
 	size_sum = ai->static_size + ai->reserved_size + ai->dyn_size;
 	areas_size = PFN_ALIGN(ai->nr_groups * sizeof(void *));
 
-	areas = memblock_virt_alloc_nopanic(areas_size, 0);
+	areas = memblock_alloc_nopanic(areas_size, 0);
 	if (!areas) {
 		rc = -ENOMEM;
 		goto out_free;
@@ -2598,7 +2598,7 @@ int __init pcpu_page_first_chunk(size_t reserved_size,
 	/* unaligned allocations can't be freed, round up to page size */
 	pages_size = PFN_ALIGN(unit_pages * num_possible_cpus() *
 			       sizeof(pages[0]));
-	pages = memblock_virt_alloc(pages_size, 0);
+	pages = memblock_alloc(pages_size, 0);
 
 	/* allocate pages */
 	j = 0;
@@ -2687,7 +2687,7 @@ EXPORT_SYMBOL(__per_cpu_offset);
 static void * __init pcpu_dfl_fc_alloc(unsigned int cpu, size_t size,
 				       size_t align)
 {
-	return  memblock_virt_alloc_from_nopanic(
+	return  memblock_alloc_from_nopanic(
 			size, align, __pa(MAX_DMA_ADDRESS));
 }
 
@@ -2736,7 +2736,7 @@ void __init setup_per_cpu_areas(void)
 	void *fc;
 
 	ai = pcpu_alloc_alloc_info(1, 1);
-	fc = memblock_virt_alloc_from_nopanic(unit_size,
+	fc = memblock_alloc_from_nopanic(unit_size,
 					      PAGE_SIZE,
 					      __pa(MAX_DMA_ADDRESS));
 	if (!ai || !fc)
diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
index 8301293..91c2c3d 100644
--- a/mm/sparse-vmemmap.c
+++ b/mm/sparse-vmemmap.c
@@ -42,7 +42,7 @@ static void * __ref __earlyonly_bootmem_alloc(int node,
 				unsigned long align,
 				unsigned long goal)
 {
-	return memblock_virt_alloc_try_nid_raw(size, align, goal,
+	return memblock_alloc_try_nid_raw(size, align, goal,
 					       BOOTMEM_ALLOC_ACCESSIBLE, node);
 }
 
diff --git a/mm/sparse.c b/mm/sparse.c
index 10b07ee..04e97af 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -68,7 +68,7 @@ static noinline struct mem_section __ref *sparse_index_alloc(int nid)
 	if (slab_is_available())
 		section = kzalloc_node(array_size, GFP_KERNEL, nid);
 	else
-		section = memblock_virt_alloc_node(array_size, nid);
+		section = memblock_alloc_node(array_size, nid);
 
 	return section;
 }
@@ -216,7 +216,7 @@ void __init memory_present(int nid, unsigned long start, unsigned long end)
 
 		size = sizeof(struct mem_section*) * NR_SECTION_ROOTS;
 		align = 1 << (INTERNODE_CACHE_SHIFT);
-		mem_section = memblock_virt_alloc(size, align);
+		mem_section = memblock_alloc(size, align);
 	}
 #endif
 
@@ -306,7 +306,7 @@ sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat,
 	limit = goal + (1UL << PA_SECTION_SHIFT);
 	nid = early_pfn_to_nid(goal >> PAGE_SHIFT);
 again:
-	p = memblock_virt_alloc_try_nid_nopanic(size,
+	p = memblock_alloc_try_nid_nopanic(size,
 						SMP_CACHE_BYTES, goal, limit,
 						nid);
 	if (!p && limit) {
@@ -362,7 +362,7 @@ static unsigned long * __init
 sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat,
 					 unsigned long size)
 {
-	return memblock_virt_alloc_node_nopanic(size, pgdat->node_id);
+	return memblock_alloc_node_nopanic(size, pgdat->node_id);
 }
 
 static void __init check_usemap_section_nr(int nid, unsigned long *usemap)
@@ -391,7 +391,7 @@ struct page __init *sparse_mem_map_populate(unsigned long pnum, int nid,
 	if (map)
 		return map;
 
-	map = memblock_virt_alloc_try_nid(size,
+	map = memblock_alloc_try_nid(size,
 					  PAGE_SIZE, __pa(MAX_DMA_ADDRESS),
 					  BOOTMEM_ALLOC_ACCESSIBLE, nid);
 	return map;
@@ -405,7 +405,7 @@ static void __init sparse_buffer_init(unsigned long size, int nid)
 {
 	WARN_ON(sparsemap_buf);	/* forgot to call sparse_buffer_fini()? */
 	sparsemap_buf =
-		memblock_virt_alloc_try_nid_raw(size, PAGE_SIZE,
+		memblock_alloc_try_nid_raw(size, PAGE_SIZE,
 						__pa(MAX_DMA_ADDRESS),
 						BOOTMEM_ALLOC_ACCESSIBLE, nid);
 	sparsemap_buf_end = sparsemap_buf + size;
-- 
2.7.4

From - Thu Nov 08 21:41:56 2018
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 10/30] memblock: replace __alloc_bootmem_node_nopanic with
 memblock_alloc_try_nid_nopanic
Date: Fri, 14 Sep 2018 15:10:25 +0300
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Approved: news@gmane.org
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/784>

The __alloc_bootmem_node_nopanic() attempts to allocate memory for a
specified node. If the allocation fails it then retries to allocate memory
from any node. Upon success, the allocated memory is set to 0.

The memblock_alloc_try_nid_nopanic() does exactly the same thing and can be
used instead.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/x86/kernel/setup_percpu.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index ea554f8..67d48e26 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -112,8 +112,10 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size,
 		pr_debug("per cpu data for cpu%d %lu bytes at %016lx\n",
 			 cpu, size, __pa(ptr));
 	} else {
-		ptr = __alloc_bootmem_node_nopanic(NODE_DATA(node),
-						   size, align, goal);
+		ptr = memblock_alloc_try_nid_nopanic(size, align, goal,
+						     BOOTMEM_ALLOC_ACCESSIBLE,
+						     node);
+
 		pr_debug("per cpu data for cpu%d %lu bytes on node%d at %016lx\n",
 			 cpu, size, node, __pa(ptr));
 	}
-- 
2.7.4

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Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 09/30] memblock: replace alloc_bootmem_low with
 memblock_alloc_low
Date: Fri, 14 Sep 2018 15:10:24 +0300
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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To: linux-mm@kvack.org
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Xref: news.gmane.org gmane.linux.ports.riscv:785 gmane.linux.kernel.mm:203321 gmane.linux.ports.mips.general:66623 gmane.linux.ports.ia64:29218 gmane.linux.ports.sh.devel:57494 gmane.linux.ports.sparc:28406 gmane.linux.ports.hexagon:1835 gmane.linux.kernel.arc:4348 gmane.linux.ports.alpha:5224 gmane.linux.ports.arm.kernel:674193 gmane.linux.ports.parisc:28946 gmane.linux.kernel:2870764 gmane.linux.ports.ppc64.devel:162481
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/785>

The functions are equivalent, just the later does not require nobootmem
translation layer.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/x86/kernel/tce_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/tce_64.c b/arch/x86/kernel/tce_64.c
index f386bad..54c9b5a 100644
--- a/arch/x86/kernel/tce_64.c
+++ b/arch/x86/kernel/tce_64.c
@@ -173,7 +173,7 @@ void * __init alloc_tce_table(void)
 	size = table_size_to_number_of_entries(specified_table_size);
 	size *= TCE_ENTRY_SIZE;
 
-	return __alloc_bootmem_low(size, size, 0);
+	return memblock_alloc_low(size, size);
 }
 
 void __init free_tce_table(void *tbl)
-- 
2.7.4

From - Thu Nov 08 21:41:56 2018
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Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 12/30] memblock: replace alloc_bootmem_low with
 memblock_alloc_low
Date: Fri, 14 Sep 2018 15:10:27 +0300
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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To: linux-mm@kvack.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/786>

The alloc_bootmem_low(size) allocates low memory with default alignement
and can be replcaed by memblock_alloc_low(size, 0)

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/arm64/kernel/setup.c     | 2 +-
 arch/unicore32/kernel/setup.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 5b4fac4..cf7a7b7 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -213,7 +213,7 @@ static void __init request_standard_resources(void)
 	kernel_data.end     = __pa_symbol(_end - 1);
 
 	for_each_memblock(memory, region) {
-		res = alloc_bootmem_low(sizeof(*res));
+		res = memblock_alloc_low(sizeof(*res), 0);
 		if (memblock_is_nomap(region)) {
 			res->name  = "reserved";
 			res->flags = IORESOURCE_MEM;
diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
index c2bffa5..9f163f9 100644
--- a/arch/unicore32/kernel/setup.c
+++ b/arch/unicore32/kernel/setup.c
@@ -207,7 +207,7 @@ request_standard_resources(struct meminfo *mi)
 		if (mi->bank[i].size == 0)
 			continue;
 
-		res = alloc_bootmem_low(sizeof(*res));
+		res = memblock_alloc_low(sizeof(*res), 0);
 		res->name  = "System RAM";
 		res->start = mi->bank[i].start;
 		res->end   = mi->bank[i].start + mi->bank[i].size - 1;
-- 
2.7.4

From - Thu Nov 08 21:41:56 2018
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X-Mozilla-Keys:                                                                                 
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 11/30] memblock: replace alloc_bootmem_pages_nopanic with
 memblock_alloc_nopanic
Date: Fri, 14 Sep 2018 15:10:26 +0300
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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 Catalin Marinas <catalin.marinas@arm.com>, Palmer Dabbelt <palmer@sifive.com>,
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 linux-alpha@vge
To: linux-mm@kvack.org
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Xref: news.gmane.org gmane.linux.kernel.arc:4350 gmane.linux.kernel.mm:203323 gmane.linux.ports.mips.general:66625 gmane.linux.ports.ia64:29220 gmane.linux.ports.sh.devel:57496 gmane.linux.ports.sparc:28408 gmane.linux.ports.hexagon:1837 gmane.linux.ports.riscv:787 gmane.linux.ports.alpha:5226 gmane.linux.ports.arm.kernel:674195 gmane.linux.ports.parisc:28948 gmane.linux.kernel:2870766 gmane.linux.ports.ppc64.devel:162483
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4350>

The alloc_bootmem_pages_nopanic(size) is a shortcut for
__alloc_bootmem_nopanic(size, PAGE_SIZE, BOOTMEM_LOW_LIMIT) which allocates
PAGE_SIZE aligned memory. Since BOOTMEM_LOW_LIMIT is hardwired to 0 there
is no restrictions on where the allocated memory should reside.

The memblock_alloc_nopanic(size, PAGE_SIZE) also allocates PAGE_SIZE
aligned memory without any restrictions and thus can be used as a
replacement for alloc_bootmem_pages_nopanic()

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 drivers/usb/early/xhci-dbc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
index e15e896..16df968 100644
--- a/drivers/usb/early/xhci-dbc.c
+++ b/drivers/usb/early/xhci-dbc.c
@@ -94,7 +94,7 @@ static void * __init xdbc_get_page(dma_addr_t *dma_addr)
 {
 	void *virt;
 
-	virt = alloc_bootmem_pages_nopanic(PAGE_SIZE);
+	virt = memblock_alloc_nopanic(PAGE_SIZE, PAGE_SIZE);
 	if (!virt)
 		return NULL;
 
-- 
2.7.4

From - Thu Nov 08 21:41:56 2018
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 13/30] memblock: replace __alloc_bootmem_nopanic with
 memblock_alloc_from_nopanic
Date: Fri, 14 Sep 2018 15:10:28 +0300
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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To: linux-mm@kvack.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4351>

When __alloc_bootmem_nopanic() is used with explicit lower limit for the
allocation it attempts to allocate memory at or above that limit and falls
back to allocation with no limit set.

The memblock_alloc_from_nopanic() does exactly the same thing and can be
used as a replacement for __alloc_bootmem_nopanic() is such cases.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/arc/kernel/unwind.c       | 4 ++--
 arch/x86/kernel/setup_percpu.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
index 183391d..2a01dd1 100644
--- a/arch/arc/kernel/unwind.c
+++ b/arch/arc/kernel/unwind.c
@@ -181,8 +181,8 @@ static void init_unwind_hdr(struct unwind_table *table,
  */
 static void *__init unw_hdr_alloc_early(unsigned long sz)
 {
-	return __alloc_bootmem_nopanic(sz, sizeof(unsigned int),
-				       MAX_DMA_ADDRESS);
+	return memblock_alloc_from_nopanic(sz, sizeof(unsigned int),
+					   MAX_DMA_ADDRESS);
 }
 
 static void *unw_hdr_alloc(unsigned long sz)
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index 67d48e26..041663a 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -106,7 +106,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size,
 	void *ptr;
 
 	if (!node_online(node) || !NODE_DATA(node)) {
-		ptr = __alloc_bootmem_nopanic(size, align, goal);
+		ptr = memblock_alloc_from_nopanic(size, align, goal);
 		pr_info("cpu %d has no node %d or node-local memory\n",
 			cpu, node);
 		pr_debug("per cpu data for cpu%d %lu bytes at %016lx\n",
@@ -121,7 +121,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size,
 	}
 	return ptr;
 #else
-	return __alloc_bootmem_nopanic(size, align, goal);
+	return memblock_alloc_from_nopanic(size, align, goal);
 #endif
 }
 
-- 
2.7.4

From - Thu Nov 08 21:41:56 2018
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X-Mozilla-Keys:                                                                                 
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 14/30] memblock: add align parameter to memblock_alloc_node()
Date: Fri, 14 Sep 2018 15:10:29 +0300
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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 Catalin Marinas <catalin.marinas@arm.com>, Palmer Dabbelt <palmer@sifive.com>,
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 linux-alpha@vge
To: linux-mm@kvack.org
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Xref: news.gmane.org gmane.linux.ports.riscv:789 gmane.linux.kernel.mm:203325 gmane.linux.ports.mips.general:66627 gmane.linux.ports.ia64:29222 gmane.linux.ports.sh.devel:57498 gmane.linux.ports.sparc:28410 gmane.linux.ports.hexagon:1839 gmane.linux.kernel.arc:4352 gmane.linux.ports.alpha:5228 gmane.linux.ports.arm.kernel:674197 gmane.linux.ports.parisc:28950 gmane.linux.kernel:2870768 gmane.linux.ports.ppc64.devel:162485
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/789>

With the align parameter memblock_alloc_node() can be used as drop in
replacement for alloc_bootmem_pages_node() and __alloc_bootmem_node(),
which is done in the following patches.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
---
 include/linux/bootmem.h | 4 ++--
 mm/sparse.c             | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 7d91f0f..3896af2 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -157,9 +157,9 @@ static inline void * __init memblock_alloc_from_nopanic(
 }
 
 static inline void * __init memblock_alloc_node(
-						phys_addr_t size, int nid)
+		phys_addr_t size, phys_addr_t align, int nid)
 {
-	return memblock_alloc_try_nid(size, 0, BOOTMEM_LOW_LIMIT,
+	return memblock_alloc_try_nid(size, align, BOOTMEM_LOW_LIMIT,
 					    BOOTMEM_ALLOC_ACCESSIBLE, nid);
 }
 
diff --git a/mm/sparse.c b/mm/sparse.c
index 04e97af..509828f 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -68,7 +68,7 @@ static noinline struct mem_section __ref *sparse_index_alloc(int nid)
 	if (slab_is_available())
 		section = kzalloc_node(array_size, GFP_KERNEL, nid);
 	else
-		section = memblock_alloc_node(array_size, nid);
+		section = memblock_alloc_node(array_size, 0, nid);
 
 	return section;
 }
-- 
2.7.4

From - Thu Nov 08 21:41:56 2018
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X-Mozilla-Keys:                                                                                 
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 15/30] memblock: replace alloc_bootmem_pages_node with
 memblock_alloc_node
Date: Fri, 14 Sep 2018 15:10:30 +0300
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Catalin Marinas <catalin.marinas@arm.com>, Palmer Dabbelt <palmer@sifive.com>,
 Russell King <linux@armlinux.org.uk>, Rich Felker <dalias@libc.org>,
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 linux-riscv@lists.infradead.org, Jonas Bonn <jonas@southpole.se>,
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 Yoshinori Sato <ysato@users.sourceforge.jp>, Jonathan Corbet <corbet@lwn.net>,
 Michael Ellerman <mpe@ellerman.id.au>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>, Ingo Molnar <mingo@redhat.com>,
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To: linux-mm@kvack.org
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Xref: news.gmane.org gmane.linux.kernel.arc:4353 gmane.linux.kernel.mm:203326 gmane.linux.ports.mips.general:66628 gmane.linux.ports.ia64:29223 gmane.linux.ports.sh.devel:57499 gmane.linux.ports.sparc:28411 gmane.linux.ports.hexagon:1840 gmane.linux.ports.riscv:790 gmane.linux.ports.alpha:5229 gmane.linux.ports.arm.kernel:674198 gmane.linux.ports.parisc:28951 gmane.linux.kernel:2870771 gmane.linux.ports.ppc64.devel:162486
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4353>

The functions are equivalent, just the later does not require nobootmem
translation layer.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/ia64/mm/init.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 3b85c3e..2169ca5 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -447,19 +447,19 @@ int __init create_mem_map_page_table(u64 start, u64 end, void *arg)
 	for (address = start_page; address < end_page; address += PAGE_SIZE) {
 		pgd = pgd_offset_k(address);
 		if (pgd_none(*pgd))
-			pgd_populate(&init_mm, pgd, alloc_bootmem_pages_node(NODE_DATA(node), PAGE_SIZE));
+			pgd_populate(&init_mm, pgd, memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node));
 		pud = pud_offset(pgd, address);
 
 		if (pud_none(*pud))
-			pud_populate(&init_mm, pud, alloc_bootmem_pages_node(NODE_DATA(node), PAGE_SIZE));
+			pud_populate(&init_mm, pud, memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node));
 		pmd = pmd_offset(pud, address);
 
 		if (pmd_none(*pmd))
-			pmd_populate_kernel(&init_mm, pmd, alloc_bootmem_pages_node(NODE_DATA(node), PAGE_SIZE));
+			pmd_populate_kernel(&init_mm, pmd, memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node));
 		pte = pte_offset_kernel(pmd, address);
 
 		if (pte_none(*pte))
-			set_pte(pte, pfn_pte(__pa(alloc_bootmem_pages_node(NODE_DATA(node), PAGE_SIZE)) >> PAGE_SHIFT,
+			set_pte(pte, pfn_pte(__pa(memblock_alloc_node(PAGE_SIZE, PAGE_SIZE, node)) >> PAGE_SHIFT,
 					     PAGE_KERNEL));
 	}
 	return 0;
-- 
2.7.4

From - Thu Nov 08 21:41:56 2018
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 16/30] memblock: replace __alloc_bootmem_node with appropriate
 memblock_ API
Date: Fri, 14 Sep 2018 15:10:31 +0300
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Catalin Marinas <catalin.marinas@arm.com>, Palmer Dabbelt <palmer@sifive.com>,
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 linux-alpha@vge
To: linux-mm@kvack.org
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Xref: news.gmane.org gmane.linux.ports.riscv:791 gmane.linux.kernel.mm:203327 gmane.linux.ports.mips.general:66629 gmane.linux.ports.ia64:29224 gmane.linux.ports.sh.devel:57500 gmane.linux.ports.sparc:28412 gmane.linux.ports.hexagon:1841 gmane.linux.kernel.arc:4354 gmane.linux.ports.alpha:5230 gmane.linux.ports.arm.kernel:674199 gmane.linux.ports.parisc:28952 gmane.linux.kernel:2870772 gmane.linux.ports.ppc64.devel:162487
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/791>

Use memblock_alloc_try_nid whenever goal (i.e. minimal address is
specified) and memblock_alloc_node otherwise.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
---
 arch/ia64/mm/discontig.c       |  6 ++++--
 arch/powerpc/kernel/setup_64.c |  6 ++++--
 arch/sparc/kernel/setup_64.c   | 10 ++++------
 arch/sparc/kernel/smp_64.c     |  4 ++--
 4 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 1928d57..918dda9 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -451,8 +451,10 @@ static void __init *memory_less_node_alloc(int nid, unsigned long pernodesize)
 	if (bestnode == -1)
 		bestnode = anynode;
 
-	ptr = __alloc_bootmem_node(pgdat_list[bestnode], pernodesize,
-		PERCPU_PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
+	ptr = memblock_alloc_try_nid(pernodesize, PERCPU_PAGE_SIZE,
+				     __pa(MAX_DMA_ADDRESS),
+				     BOOTMEM_ALLOC_ACCESSIBLE,
+				     bestnode);
 
 	return ptr;
 }
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 6a501b2..6add560 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -757,8 +757,10 @@ void __init emergency_stack_init(void)
 
 static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, size_t align)
 {
-	return __alloc_bootmem_node(NODE_DATA(early_cpu_to_node(cpu)), size, align,
-				    __pa(MAX_DMA_ADDRESS));
+	return memblock_alloc_try_nid(size, align, __pa(MAX_DMA_ADDRESS),
+				      BOOTMEM_ALLOC_ACCESSIBLE,
+				      early_cpu_to_node(cpu));
+
 }
 
 static void __init pcpu_fc_free(void *ptr, size_t size)
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index 206bf81..5fb11ea 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -622,12 +622,10 @@ void __init alloc_irqstack_bootmem(void)
 	for_each_possible_cpu(i) {
 		node = cpu_to_node(i);
 
-		softirq_stack[i] = __alloc_bootmem_node(NODE_DATA(node),
-							THREAD_SIZE,
-							THREAD_SIZE, 0);
-		hardirq_stack[i] = __alloc_bootmem_node(NODE_DATA(node),
-							THREAD_SIZE,
-							THREAD_SIZE, 0);
+		softirq_stack[i] = memblock_alloc_node(THREAD_SIZE,
+						       THREAD_SIZE, node);
+		hardirq_stack[i] = memblock_alloc_node(THREAD_SIZE,
+						       THREAD_SIZE, node);
 	}
 }
 
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index d3ea1f3..83ff88d 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1594,8 +1594,8 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size,
 		pr_debug("per cpu data for cpu%d %lu bytes at %016lx\n",
 			 cpu, size, __pa(ptr));
 	} else {
-		ptr = __alloc_bootmem_node(NODE_DATA(node),
-					   size, align, goal);
+		ptr = memblock_alloc_try_nid(size, align, goal,
+					     BOOTMEM_ALLOC_ACCESSIBLE, node);
 		pr_debug("per cpu data for cpu%d %lu bytes on node%d at "
 			 "%016lx\n", cpu, size, node, __pa(ptr));
 	}
-- 
2.7.4

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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/792>

Both functions attempt to allocate memory with specified alignment from a
particular node. If the allocation from that node fails, they both fall
back to allocating from any node in the system.

Usage of native memblock API eliminates the nobootmem translation layer.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/alpha/kernel/pci_iommu.c   | 4 ++--
 arch/ia64/sn/kernel/io_common.c | 7 ++-----
 arch/ia64/sn/kernel/setup.c     | 4 ++--
 3 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 6923b0d..b52d76f 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -74,7 +74,7 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base,
 
 #ifdef CONFIG_DISCONTIGMEM
 
-	arena = alloc_bootmem_node(NODE_DATA(nid), sizeof(*arena));
+	arena = memblock_alloc_node(sizeof(*arena), align, nid);
 	if (!NODE_DATA(nid) || !arena) {
 		printk("%s: couldn't allocate arena from node %d\n"
 		       "    falling back to system-wide allocation\n",
@@ -82,7 +82,7 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base,
 		arena = alloc_bootmem(sizeof(*arena));
 	}
 
-	arena->ptes = __alloc_bootmem_node(NODE_DATA(nid), mem_size, align, 0);
+	arena->ptes = memblock_alloc_node(sizeof(*arena), align, nid);
 	if (!NODE_DATA(nid) || !arena->ptes) {
 		printk("%s: couldn't allocate arena ptes from node %d\n"
 		       "    falling back to system-wide allocation\n",
diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c
index 102aaba..8b05d55 100644
--- a/arch/ia64/sn/kernel/io_common.c
+++ b/arch/ia64/sn/kernel/io_common.c
@@ -385,16 +385,13 @@ void __init hubdev_init_node(nodepda_t * npda, cnodeid_t node)
 {
 	struct hubdev_info *hubdev_info;
 	int size;
-	pg_data_t *pg;
 
 	size = sizeof(struct hubdev_info);
 
 	if (node >= num_online_nodes())	/* Headless/memless IO nodes */
-		pg = NODE_DATA(0);
-	else
-		pg = NODE_DATA(node);
+		node = 0;
 
-	hubdev_info = (struct hubdev_info *)alloc_bootmem_node(pg, size);
+	hubdev_info = (struct hubdev_info *)memblock_alloc_node(size, 0, node);
 
 	npda->pdinfo = (void *)hubdev_info;
 }
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index 5f6b6b4..ab2564f 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -511,7 +511,7 @@ static void __init sn_init_pdas(char **cmdline_p)
 	 */
 	for_each_online_node(cnode) {
 		nodepdaindr[cnode] =
-		    alloc_bootmem_node(NODE_DATA(cnode), sizeof(nodepda_t));
+		    memblock_alloc_node(sizeof(nodepda_t), 0, cnode);
 		memset(nodepdaindr[cnode]->phys_cpuid, -1,
 		    sizeof(nodepdaindr[cnode]->phys_cpuid));
 		spin_lock_init(&nodepdaindr[cnode]->ptc_lock);
@@ -522,7 +522,7 @@ static void __init sn_init_pdas(char **cmdline_p)
 	 */
 	for (cnode = num_online_nodes(); cnode < num_cnodes; cnode++)
 		nodepdaindr[cnode] =
-		    alloc_bootmem_node(NODE_DATA(0), sizeof(nodepda_t));
+		    memblock_alloc_node(sizeof(nodepda_t), 0, 0);
 
 	/*
 	 * Now copy the array of nodepda pointers to each nodepda.
-- 
2.7.4

From - Thu Nov 08 21:41:56 2018
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 18/30] memblock: replace alloc_bootmem_low_pages with
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Date: Fri, 14 Sep 2018 15:10:33 +0300
Lines: 158
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Catalin Marinas <catalin.marinas@arm.com>, Palmer Dabbelt <palmer@sifive.com>,
 Russell King <linux@armlinux.org.uk>, Rich Felker <dalias@libc.org>,
 sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org,
 linux-riscv@lists.infradead.org, Jonas Bonn <jonas@southpole.se>,
 linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org,
 Yoshinori Sato <ysato@users.sourceforge.jp>, Jonathan Corbet <corbet@lwn.net>,
 Michael Ellerman <mpe@ellerman.id.au>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>, Ingo Molnar <mingo@redhat.com>,
 Geert Uytterhoeven <geert@linux-m68k.org>, Mark Salter <msalter@redhat.com>,
 Matt Turner <mattst88@gmail.com>, linux-snps-arc@lists.infradead.org,
 uclinux-h8-devel@lists.sourceforge.jp, Mike Rapoport <rppt@linux.vnet.ibm.com>,
 linux-alpha@vge
To: linux-mm@kvack.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4356>

The alloc_bootmem_low_pages() function allocates PAGE_SIZE aligned regions
from low memory. memblock_alloc_low() with alignment set to PAGE_SIZE does
exactly the same thing.

The conversion is done using the following semantic patch:

@@
expression e;
@@
- alloc_bootmem_low_pages(e)
+ memblock_alloc_low(e, PAGE_SIZE)

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/arc/mm/highmem.c                |  2 +-
 arch/m68k/atari/stram.c              |  3 ++-
 arch/m68k/mm/motorola.c              |  5 +++--
 arch/mips/cavium-octeon/dma-octeon.c |  2 +-
 arch/mips/mm/init.c                  |  3 ++-
 arch/um/kernel/mem.c                 | 10 ++++++----
 arch/xtensa/mm/mmu.c                 |  2 +-
 7 files changed, 16 insertions(+), 11 deletions(-)

diff --git a/arch/arc/mm/highmem.c b/arch/arc/mm/highmem.c
index 77ff64a..f582dc8 100644
--- a/arch/arc/mm/highmem.c
+++ b/arch/arc/mm/highmem.c
@@ -123,7 +123,7 @@ static noinline pte_t * __init alloc_kmap_pgtable(unsigned long kvaddr)
 	pud_k = pud_offset(pgd_k, kvaddr);
 	pmd_k = pmd_offset(pud_k, kvaddr);
 
-	pte_k = (pte_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+	pte_k = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
 	pmd_populate_kernel(&init_mm, pmd_k, pte_k);
 	return pte_k;
 }
diff --git a/arch/m68k/atari/stram.c b/arch/m68k/atari/stram.c
index c83d664..1089d67 100644
--- a/arch/m68k/atari/stram.c
+++ b/arch/m68k/atari/stram.c
@@ -95,7 +95,8 @@ void __init atari_stram_reserve_pages(void *start_mem)
 {
 	if (kernel_in_stram) {
 		pr_debug("atari_stram pool: kernel in ST-RAM, using alloc_bootmem!\n");
-		stram_pool.start = (resource_size_t)alloc_bootmem_low_pages(pool_size);
+		stram_pool.start = (resource_size_t)memblock_alloc_low(pool_size,
+								       PAGE_SIZE);
 		stram_pool.end = stram_pool.start + pool_size - 1;
 		request_resource(&iomem_resource, &stram_pool);
 		stram_virt_offset = 0;
diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c
index 4e17ecb..8bcf57e 100644
--- a/arch/m68k/mm/motorola.c
+++ b/arch/m68k/mm/motorola.c
@@ -55,7 +55,7 @@ static pte_t * __init kernel_page_table(void)
 {
 	pte_t *ptablep;
 
-	ptablep = (pte_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+	ptablep = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
 
 	clear_page(ptablep);
 	__flush_page_to_ram(ptablep);
@@ -95,7 +95,8 @@ static pmd_t * __init kernel_ptr_table(void)
 
 	last_pgtable += PTRS_PER_PMD;
 	if (((unsigned long)last_pgtable & ~PAGE_MASK) == 0) {
-		last_pgtable = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+		last_pgtable = (pmd_t *)memblock_alloc_low(PAGE_SIZE,
+							   PAGE_SIZE);
 
 		clear_page(last_pgtable);
 		__flush_page_to_ram(last_pgtable);
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index 236833b..c44c1a6 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -244,7 +244,7 @@ void __init plat_swiotlb_setup(void)
 	swiotlb_nslabs = ALIGN(swiotlb_nslabs, IO_TLB_SEGSIZE);
 	swiotlbsize = swiotlb_nslabs << IO_TLB_SHIFT;
 
-	octeon_swiotlb = alloc_bootmem_low_pages(swiotlbsize);
+	octeon_swiotlb = memblock_alloc_low(swiotlbsize, PAGE_SIZE);
 
 	if (swiotlb_init_with_tbl(octeon_swiotlb, swiotlb_nslabs, 1) == -ENOMEM)
 		panic("Cannot allocate SWIOTLB buffer");
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 400676c..a010fba7 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -244,7 +244,8 @@ void __init fixrange_init(unsigned long start, unsigned long end,
 			pmd = (pmd_t *)pud;
 			for (; (k < PTRS_PER_PMD) && (vaddr < end); pmd++, k++) {
 				if (pmd_none(*pmd)) {
-					pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+					pte = (pte_t *) memblock_alloc_low(PAGE_SIZE,
+									   PAGE_SIZE);
 					set_pmd(pmd, __pmd((unsigned long)pte));
 					BUG_ON(pte != pte_offset_kernel(pmd, 0));
 				}
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 3c0e470..185f6bb 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -64,7 +64,8 @@ void __init mem_init(void)
 static void __init one_page_table_init(pmd_t *pmd)
 {
 	if (pmd_none(*pmd)) {
-		pte_t *pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+		pte_t *pte = (pte_t *) memblock_alloc_low(PAGE_SIZE,
+							  PAGE_SIZE);
 		set_pmd(pmd, __pmd(_KERNPG_TABLE +
 					   (unsigned long) __pa(pte)));
 		if (pte != pte_offset_kernel(pmd, 0))
@@ -75,7 +76,7 @@ static void __init one_page_table_init(pmd_t *pmd)
 static void __init one_md_table_init(pud_t *pud)
 {
 #ifdef CONFIG_3_LEVEL_PGTABLES
-	pmd_t *pmd_table = (pmd_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+	pmd_t *pmd_table = (pmd_t *) memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
 	set_pud(pud, __pud(_KERNPG_TABLE + (unsigned long) __pa(pmd_table)));
 	if (pmd_table != pmd_offset(pud, 0))
 		BUG();
@@ -124,7 +125,7 @@ static void __init fixaddr_user_init( void)
 		return;
 
 	fixrange_init( FIXADDR_USER_START, FIXADDR_USER_END, swapper_pg_dir);
-	v = (unsigned long) alloc_bootmem_low_pages(size);
+	v = (unsigned long) memblock_alloc_low(size, PAGE_SIZE);
 	memcpy((void *) v , (void *) FIXADDR_USER_START, size);
 	p = __pa(v);
 	for ( ; size > 0; size -= PAGE_SIZE, vaddr += PAGE_SIZE,
@@ -143,7 +144,8 @@ void __init paging_init(void)
 	unsigned long zones_size[MAX_NR_ZONES], vaddr;
 	int i;
 
-	empty_zero_page = (unsigned long *) alloc_bootmem_low_pages(PAGE_SIZE);
+	empty_zero_page = (unsigned long *) memblock_alloc_low(PAGE_SIZE,
+							       PAGE_SIZE);
 	for (i = 0; i < ARRAY_SIZE(zones_size); i++)
 		zones_size[i] = 0;
 
diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c
index 9d1ecfc..f33a1ff 100644
--- a/arch/xtensa/mm/mmu.c
+++ b/arch/xtensa/mm/mmu.c
@@ -31,7 +31,7 @@ static void * __init init_pmd(unsigned long vaddr, unsigned long n_pages)
 	pr_debug("%s: vaddr: 0x%08lx, n_pages: %ld\n",
 		 __func__, vaddr, n_pages);
 
-	pte = alloc_bootmem_low_pages(n_pages * sizeof(pte_t));
+	pte = memblock_alloc_low(n_pages * sizeof(pte_t), PAGE_SIZE);
 
 	for (i = 0; i < n_pages; ++i)
 		pte_clear(NULL, 0, pte + i);
-- 
2.7.4

From - Thu Nov 08 21:41:56 2018
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Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 19/30] memblock: replace alloc_bootmem_pages with
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Date: Fri, 14 Sep 2018 15:10:34 +0300
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/794>

The alloc_bootmem_pages() function allocates PAGE_SIZE aligned memory.
memblock_alloc() with alignment set to PAGE_SIZE does exactly the same
thing.

The conversion is done using the following semantic patch:

@@
expression e;
@@
- alloc_bootmem_pages(e)
+ memblock_alloc(e, PAGE_SIZE)

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/c6x/mm/init.c             | 3 ++-
 arch/h8300/mm/init.c           | 2 +-
 arch/m68k/mm/init.c            | 2 +-
 arch/m68k/mm/mcfmmu.c          | 4 ++--
 arch/m68k/mm/motorola.c        | 2 +-
 arch/m68k/mm/sun3mmu.c         | 4 ++--
 arch/sh/mm/init.c              | 4 ++--
 arch/x86/kernel/apic/io_apic.c | 3 ++-
 arch/x86/mm/init_64.c          | 2 +-
 drivers/xen/swiotlb-xen.c      | 3 ++-
 10 files changed, 16 insertions(+), 13 deletions(-)

diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c
index 4cc72b0..dc369ad 100644
--- a/arch/c6x/mm/init.c
+++ b/arch/c6x/mm/init.c
@@ -38,7 +38,8 @@ void __init paging_init(void)
 	struct pglist_data *pgdat = NODE_DATA(0);
 	unsigned long zones_size[MAX_NR_ZONES] = {0, };
 
-	empty_zero_page      = (unsigned long) alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page      = (unsigned long) memblock_alloc(PAGE_SIZE,
+							      PAGE_SIZE);
 	memset((void *)empty_zero_page, 0, PAGE_SIZE);
 
 	/*
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
index 015287a..5d31ac9 100644
--- a/arch/h8300/mm/init.c
+++ b/arch/h8300/mm/init.c
@@ -67,7 +67,7 @@ void __init paging_init(void)
 	 * Initialize the bad page table and bad page to point
 	 * to a couple of allocated pages.
 	 */
-	empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page = (unsigned long)memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 	memset((void *)empty_zero_page, 0, PAGE_SIZE);
 
 	/*
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
index 38e2b27..977363e 100644
--- a/arch/m68k/mm/init.c
+++ b/arch/m68k/mm/init.c
@@ -93,7 +93,7 @@ void __init paging_init(void)
 
 	high_memory = (void *) end_mem;
 
-	empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 
 	/*
 	 * Set up SFC/DFC registers (user data space).
diff --git a/arch/m68k/mm/mcfmmu.c b/arch/m68k/mm/mcfmmu.c
index f5453d9..38a1d92 100644
--- a/arch/m68k/mm/mcfmmu.c
+++ b/arch/m68k/mm/mcfmmu.c
@@ -44,7 +44,7 @@ void __init paging_init(void)
 	enum zone_type zone;
 	int i;
 
-	empty_zero_page = (void *) alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page = (void *) memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 	memset((void *) empty_zero_page, 0, PAGE_SIZE);
 
 	pg_dir = swapper_pg_dir;
@@ -52,7 +52,7 @@ void __init paging_init(void)
 
 	size = num_pages * sizeof(pte_t);
 	size = (size + PAGE_SIZE) & ~(PAGE_SIZE-1);
-	next_pgtable = (unsigned long) alloc_bootmem_pages(size);
+	next_pgtable = (unsigned long) memblock_alloc(size, PAGE_SIZE);
 
 	bootmem_end = (next_pgtable + size + PAGE_SIZE) & PAGE_MASK;
 	pg_dir += PAGE_OFFSET >> PGDIR_SHIFT;
diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c
index 8bcf57e..2113eec 100644
--- a/arch/m68k/mm/motorola.c
+++ b/arch/m68k/mm/motorola.c
@@ -276,7 +276,7 @@ void __init paging_init(void)
 	 * initialize the bad page table and bad page to point
 	 * to a couple of allocated pages
 	 */
-	empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 
 	/*
 	 * Set up SFC/DFC registers
diff --git a/arch/m68k/mm/sun3mmu.c b/arch/m68k/mm/sun3mmu.c
index 4a99799..19c05ab 100644
--- a/arch/m68k/mm/sun3mmu.c
+++ b/arch/m68k/mm/sun3mmu.c
@@ -45,7 +45,7 @@ void __init paging_init(void)
 	unsigned long zones_size[MAX_NR_ZONES] = { 0, };
 	unsigned long size;
 
-	empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 
 	address = PAGE_OFFSET;
 	pg_dir = swapper_pg_dir;
@@ -55,7 +55,7 @@ void __init paging_init(void)
 	size = num_pages * sizeof(pte_t);
 	size = (size + PAGE_SIZE) & ~(PAGE_SIZE-1);
 
-	next_pgtable = (unsigned long)alloc_bootmem_pages(size);
+	next_pgtable = (unsigned long)memblock_alloc(size, PAGE_SIZE);
 	bootmem_end = (next_pgtable + size + PAGE_SIZE) & PAGE_MASK;
 
 	/* Map whole memory from PAGE_OFFSET (0x0E000000) */
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 7713c08..c884b76 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -128,7 +128,7 @@ static pmd_t * __init one_md_table_init(pud_t *pud)
 	if (pud_none(*pud)) {
 		pmd_t *pmd;
 
-		pmd = alloc_bootmem_pages(PAGE_SIZE);
+		pmd = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 		pud_populate(&init_mm, pud, pmd);
 		BUG_ON(pmd != pmd_offset(pud, 0));
 	}
@@ -141,7 +141,7 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
 	if (pmd_none(*pmd)) {
 		pte_t *pte;
 
-		pte = alloc_bootmem_pages(PAGE_SIZE);
+		pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 		pmd_populate_kernel(&init_mm, pmd, pte);
 		BUG_ON(pte != pte_offset_kernel(pmd, 0));
 	}
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index ff0d14c..e25118f 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2621,7 +2621,8 @@ void __init io_apic_init_mappings(void)
 #ifdef CONFIG_X86_32
 fake_ioapic_page:
 #endif
-			ioapic_phys = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
+			ioapic_phys = (unsigned long)memblock_alloc(PAGE_SIZE,
+								    PAGE_SIZE);
 			ioapic_phys = __pa(ioapic_phys);
 		}
 		set_fixmap_nocache(idx, ioapic_phys);
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index dd519f3..f39b512 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -197,7 +197,7 @@ static __ref void *spp_getpage(void)
 	if (after_bootmem)
 		ptr = (void *) get_zeroed_page(GFP_ATOMIC);
 	else
-		ptr = alloc_bootmem_pages(PAGE_SIZE);
+		ptr = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 
 	if (!ptr || ((unsigned long)ptr & ~PAGE_MASK)) {
 		panic("set_pte_phys: cannot allocate page data %s\n",
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index a6f9ba8..8d849b4 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -217,7 +217,8 @@ int __ref xen_swiotlb_init(int verbose, bool early)
 	 * Get IO TLB memory from any location.
 	 */
 	if (early)
-		xen_io_tlb_start = alloc_bootmem_pages(PAGE_ALIGN(bytes));
+		xen_io_tlb_start = memblock_alloc(PAGE_ALIGN(bytes),
+						  PAGE_SIZE);
 	else {
 #define SLABS_PER_PAGE (1 << (PAGE_SHIFT - IO_TLB_SHIFT))
 #define IO_TLB_MIN_SLABS ((1<<20) >> IO_TLB_SHIFT)
-- 
2.7.4

From - Thu Nov 08 21:41:56 2018
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 20/30] memblock: replace __alloc_bootmem with
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Date: Fri, 14 Sep 2018 15:10:35 +0300
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/795>

The functions are equivalent, just the later does not require nobootmem
translation layer.

The conversion is done using the following semantic patch:

@@
expression size, align, goal;
@@
- __alloc_bootmem(size, align, goal)
+ memblock_alloc_from(size, align, goal)

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/alpha/kernel/core_cia.c  |  2 +-
 arch/alpha/kernel/pci_iommu.c |  4 ++--
 arch/alpha/kernel/setup.c     |  2 +-
 arch/ia64/kernel/mca.c        |  4 ++--
 arch/ia64/mm/contig.c         |  5 +++--
 arch/mips/kernel/traps.c      |  2 +-
 arch/sparc/kernel/prom_32.c   |  2 +-
 arch/sparc/kernel/smp_64.c    | 10 +++++-----
 arch/sparc/mm/init_32.c       |  2 +-
 arch/sparc/mm/init_64.c       |  9 ++++++---
 arch/sparc/mm/srmmu.c         | 10 +++++-----
 include/linux/bootmem.h       |  8 ++++++++
 12 files changed, 36 insertions(+), 24 deletions(-)

diff --git a/arch/alpha/kernel/core_cia.c b/arch/alpha/kernel/core_cia.c
index 4b38386..026ee95 100644
--- a/arch/alpha/kernel/core_cia.c
+++ b/arch/alpha/kernel/core_cia.c
@@ -331,7 +331,7 @@ cia_prepare_tbia_workaround(int window)
 	long i;
 
 	/* Use minimal 1K map. */
-	ppte = __alloc_bootmem(CIA_BROKEN_TBIA_SIZE, 32768, 0);
+	ppte = memblock_alloc_from(CIA_BROKEN_TBIA_SIZE, 32768, 0);
 	pte = (virt_to_phys(ppte) >> (PAGE_SHIFT - 1)) | 1;
 
 	for (i = 0; i < CIA_BROKEN_TBIA_SIZE / sizeof(unsigned long); ++i)
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index b52d76f..0c05493 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -87,13 +87,13 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base,
 		printk("%s: couldn't allocate arena ptes from node %d\n"
 		       "    falling back to system-wide allocation\n",
 		       __func__, nid);
-		arena->ptes = __alloc_bootmem(mem_size, align, 0);
+		arena->ptes = memblock_alloc_from(mem_size, align, 0);
 	}
 
 #else /* CONFIG_DISCONTIGMEM */
 
 	arena = alloc_bootmem(sizeof(*arena));
-	arena->ptes = __alloc_bootmem(mem_size, align, 0);
+	arena->ptes = memblock_alloc_from(mem_size, align, 0);
 
 #endif /* CONFIG_DISCONTIGMEM */
 
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index 4f0d944..64c06a0 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -294,7 +294,7 @@ move_initrd(unsigned long mem_limit)
 	unsigned long size;
 
 	size = initrd_end - initrd_start;
-	start = __alloc_bootmem(PAGE_ALIGN(size), PAGE_SIZE, 0);
+	start = memblock_alloc_from(PAGE_ALIGN(size), PAGE_SIZE, 0);
 	if (!start || __pa(start) + size > mem_limit) {
 		initrd_start = initrd_end = 0;
 		return NULL;
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 6115464..5586926 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1835,8 +1835,8 @@ format_mca_init_stack(void *mca_data, unsigned long offset,
 /* Caller prevents this from being called after init */
 static void * __ref mca_bootmem(void)
 {
-	return __alloc_bootmem(sizeof(struct ia64_mca_cpu),
-	                    KERNEL_STACK_SIZE, 0);
+	return memblock_alloc_from(sizeof(struct ia64_mca_cpu),
+				   KERNEL_STACK_SIZE, 0);
 }
 
 /* Do per-CPU MCA-related initialization.  */
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index e2e40bb..9e5c23a 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -85,8 +85,9 @@ void *per_cpu_init(void)
 static inline void
 alloc_per_cpu_data(void)
 {
-	cpu_data = __alloc_bootmem(PERCPU_PAGE_SIZE * num_possible_cpus(),
-				   PERCPU_PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
+	cpu_data = memblock_alloc_from(PERCPU_PAGE_SIZE * num_possible_cpus(),
+				       PERCPU_PAGE_SIZE,
+				       __pa(MAX_DMA_ADDRESS));
 }
 
 /**
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 5feef28..623dc18 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -2263,7 +2263,7 @@ void __init trap_init(void)
 
 		memblock_set_bottom_up(true);
 		ebase = (unsigned long)
-			__alloc_bootmem(size, 1 << fls(size), 0);
+			memblock_alloc_from(size, 1 << fls(size), 0);
 		memblock_set_bottom_up(false);
 
 		/*
diff --git a/arch/sparc/kernel/prom_32.c b/arch/sparc/kernel/prom_32.c
index b51cbb9..4389944 100644
--- a/arch/sparc/kernel/prom_32.c
+++ b/arch/sparc/kernel/prom_32.c
@@ -32,7 +32,7 @@ void * __init prom_early_alloc(unsigned long size)
 {
 	void *ret;
 
-	ret = __alloc_bootmem(size, SMP_CACHE_BYTES, 0UL);
+	ret = memblock_alloc_from(size, SMP_CACHE_BYTES, 0UL);
 	if (ret != NULL)
 		memset(ret, 0, size);
 
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 83ff88d..337febd 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1588,7 +1588,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size,
 	void *ptr;
 
 	if (!node_online(node) || !NODE_DATA(node)) {
-		ptr = __alloc_bootmem(size, align, goal);
+		ptr = memblock_alloc_from(size, align, goal);
 		pr_info("cpu %d has no node %d or node-local memory\n",
 			cpu, node);
 		pr_debug("per cpu data for cpu%d %lu bytes at %016lx\n",
@@ -1601,7 +1601,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size,
 	}
 	return ptr;
 #else
-	return __alloc_bootmem(size, align, goal);
+	return memblock_alloc_from(size, align, goal);
 #endif
 }
 
@@ -1627,7 +1627,7 @@ static void __init pcpu_populate_pte(unsigned long addr)
 	if (pgd_none(*pgd)) {
 		pud_t *new;
 
-		new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
+		new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
 		pgd_populate(&init_mm, pgd, new);
 	}
 
@@ -1635,7 +1635,7 @@ static void __init pcpu_populate_pte(unsigned long addr)
 	if (pud_none(*pud)) {
 		pmd_t *new;
 
-		new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
+		new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
 		pud_populate(&init_mm, pud, new);
 	}
 
@@ -1643,7 +1643,7 @@ static void __init pcpu_populate_pte(unsigned long addr)
 	if (!pmd_present(*pmd)) {
 		pte_t *new;
 
-		new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
+		new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
 		pmd_populate_kernel(&init_mm, pmd, new);
 	}
 }
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index 92634d4..885dd38 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -265,7 +265,7 @@ void __init mem_init(void)
 	i = last_valid_pfn >> ((20 - PAGE_SHIFT) + 5);
 	i += 1;
 	sparc_valid_addr_bitmap = (unsigned long *)
-		__alloc_bootmem(i << 2, SMP_CACHE_BYTES, 0UL);
+		memblock_alloc_from(i << 2, SMP_CACHE_BYTES, 0UL);
 
 	if (sparc_valid_addr_bitmap == NULL) {
 		prom_printf("mem_init: Cannot alloc valid_addr_bitmap.\n");
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 578ec3d..51cd583 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1810,7 +1810,8 @@ static unsigned long __ref kernel_map_range(unsigned long pstart,
 		if (pgd_none(*pgd)) {
 			pud_t *new;
 
-			new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
+			new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE,
+						  PAGE_SIZE);
 			alloc_bytes += PAGE_SIZE;
 			pgd_populate(&init_mm, pgd, new);
 		}
@@ -1822,7 +1823,8 @@ static unsigned long __ref kernel_map_range(unsigned long pstart,
 				vstart = kernel_map_hugepud(vstart, vend, pud);
 				continue;
 			}
-			new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
+			new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE,
+						  PAGE_SIZE);
 			alloc_bytes += PAGE_SIZE;
 			pud_populate(&init_mm, pud, new);
 		}
@@ -1835,7 +1837,8 @@ static unsigned long __ref kernel_map_range(unsigned long pstart,
 				vstart = kernel_map_hugepmd(vstart, vend, pmd);
 				continue;
 			}
-			new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
+			new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE,
+						  PAGE_SIZE);
 			alloc_bytes += PAGE_SIZE;
 			pmd_populate_kernel(&init_mm, pmd, new);
 		}
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index be9cb00..b48fea5 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -303,13 +303,13 @@ static void __init srmmu_nocache_init(void)
 
 	bitmap_bits = srmmu_nocache_size >> SRMMU_NOCACHE_BITMAP_SHIFT;
 
-	srmmu_nocache_pool = __alloc_bootmem(srmmu_nocache_size,
-		SRMMU_NOCACHE_ALIGN_MAX, 0UL);
+	srmmu_nocache_pool = memblock_alloc_from(srmmu_nocache_size,
+						 SRMMU_NOCACHE_ALIGN_MAX, 0UL);
 	memset(srmmu_nocache_pool, 0, srmmu_nocache_size);
 
 	srmmu_nocache_bitmap =
-		__alloc_bootmem(BITS_TO_LONGS(bitmap_bits) * sizeof(long),
-				SMP_CACHE_BYTES, 0UL);
+		memblock_alloc_from(BITS_TO_LONGS(bitmap_bits) * sizeof(long),
+				    SMP_CACHE_BYTES, 0UL);
 	bit_map_init(&srmmu_nocache_map, srmmu_nocache_bitmap, bitmap_bits);
 
 	srmmu_swapper_pg_dir = __srmmu_get_nocache(SRMMU_PGD_TABLE_SIZE, SRMMU_PGD_TABLE_SIZE);
@@ -467,7 +467,7 @@ static void __init sparc_context_init(int numctx)
 	unsigned long size;
 
 	size = numctx * sizeof(struct ctx_list);
-	ctx_list_pool = __alloc_bootmem(size, SMP_CACHE_BYTES, 0UL);
+	ctx_list_pool = memblock_alloc_from(size, SMP_CACHE_BYTES, 0UL);
 
 	for (ctx = 0; ctx < numctx; ctx++) {
 		struct ctx_list *clist;
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 3896af2..c97c105 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -122,6 +122,14 @@ static inline void * __init memblock_alloc_raw(
 					    NUMA_NO_NODE);
 }
 
+static inline void * __init memblock_alloc_from(
+		phys_addr_t size, phys_addr_t align, phys_addr_t min_addr)
+{
+	return memblock_alloc_try_nid(size, align, min_addr,
+				      BOOTMEM_ALLOC_ACCESSIBLE,
+				      NUMA_NO_NODE);
+}
+
 static inline void * __init memblock_alloc_nopanic(
 					phys_addr_t size, phys_addr_t align)
 {
-- 
2.7.4

From - Thu Nov 08 21:41:57 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 21/30] memblock: replace alloc_bootmem with memblock_alloc
Date: Fri, 14 Sep 2018 15:10:36 +0300
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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To: linux-mm@kvack.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4359>

The alloc_bootmem(size) is a shortcut for allocation of SMP_CACHE_BYTES
aligned memory. When the align parameter of memblock_alloc() is 0, the
alignment is implicitly set to SMP_CACHE_BYTES and thus alloc_bootmem(size)
and memblock_alloc(size, 0) are equivalent.

The conversion is done using the following semantic patch:

@@
expression size;
@@
- alloc_bootmem(size)
+ memblock_alloc(size, 0)

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
---
 arch/alpha/kernel/core_marvel.c     | 4 ++--
 arch/alpha/kernel/pci-noop.c        | 4 ++--
 arch/alpha/kernel/pci.c             | 4 ++--
 arch/alpha/kernel/pci_iommu.c       | 4 ++--
 arch/ia64/kernel/mca.c              | 4 ++--
 arch/ia64/mm/tlb.c                  | 4 ++--
 arch/m68k/sun3/sun3dvma.c           | 3 ++-
 arch/microblaze/mm/init.c           | 2 +-
 arch/mips/kernel/setup.c            | 2 +-
 arch/um/drivers/net_kern.c          | 2 +-
 arch/um/drivers/vector_kern.c       | 2 +-
 arch/um/kernel/initrd.c             | 2 +-
 arch/x86/kernel/acpi/boot.c         | 3 ++-
 arch/x86/kernel/apic/io_apic.c      | 2 +-
 arch/x86/kernel/e820.c              | 2 +-
 arch/x86/platform/olpc/olpc_dt.c    | 2 +-
 arch/xtensa/platforms/iss/network.c | 2 +-
 drivers/macintosh/smu.c             | 2 +-
 init/main.c                         | 4 ++--
 19 files changed, 28 insertions(+), 26 deletions(-)

diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c
index bdebb8c2..1f00c94 100644
--- a/arch/alpha/kernel/core_marvel.c
+++ b/arch/alpha/kernel/core_marvel.c
@@ -82,7 +82,7 @@ mk_resource_name(int pe, int port, char *str)
 	char *name;
 	
 	sprintf(tmp, "PCI %s PE %d PORT %d", str, pe, port);
-	name = alloc_bootmem(strlen(tmp) + 1);
+	name = memblock_alloc(strlen(tmp) + 1, 0);
 	strcpy(name, tmp);
 
 	return name;
@@ -117,7 +117,7 @@ alloc_io7(unsigned int pe)
 		return NULL;
 	}
 
-	io7 = alloc_bootmem(sizeof(*io7));
+	io7 = memblock_alloc(sizeof(*io7), 0);
 	io7->pe = pe;
 	raw_spin_lock_init(&io7->irq_lock);
 
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index c7c5879..59cbfc2 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -33,7 +33,7 @@ alloc_pci_controller(void)
 {
 	struct pci_controller *hose;
 
-	hose = alloc_bootmem(sizeof(*hose));
+	hose = memblock_alloc(sizeof(*hose), 0);
 
 	*hose_tail = hose;
 	hose_tail = &hose->next;
@@ -44,7 +44,7 @@ alloc_pci_controller(void)
 struct resource * __init
 alloc_resource(void)
 {
-	return alloc_bootmem(sizeof(struct resource));
+	return memblock_alloc(sizeof(struct resource), 0);
 }
 
 SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, bus,
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index c668c3b..4cc3eb9 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -392,7 +392,7 @@ alloc_pci_controller(void)
 {
 	struct pci_controller *hose;
 
-	hose = alloc_bootmem(sizeof(*hose));
+	hose = memblock_alloc(sizeof(*hose), 0);
 
 	*hose_tail = hose;
 	hose_tail = &hose->next;
@@ -403,7 +403,7 @@ alloc_pci_controller(void)
 struct resource * __init
 alloc_resource(void)
 {
-	return alloc_bootmem(sizeof(struct resource));
+	return memblock_alloc(sizeof(struct resource), 0);
 }
 
 
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 0c05493..5d178c7 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -79,7 +79,7 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base,
 		printk("%s: couldn't allocate arena from node %d\n"
 		       "    falling back to system-wide allocation\n",
 		       __func__, nid);
-		arena = alloc_bootmem(sizeof(*arena));
+		arena = memblock_alloc(sizeof(*arena), 0);
 	}
 
 	arena->ptes = memblock_alloc_node(sizeof(*arena), align, nid);
@@ -92,7 +92,7 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base,
 
 #else /* CONFIG_DISCONTIGMEM */
 
-	arena = alloc_bootmem(sizeof(*arena));
+	arena = memblock_alloc(sizeof(*arena), 0);
 	arena->ptes = memblock_alloc_from(mem_size, align, 0);
 
 #endif /* CONFIG_DISCONTIGMEM */
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 5586926..7120976 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -361,9 +361,9 @@ static ia64_state_log_t ia64_state_log[IA64_MAX_LOG_TYPES];
 
 #define IA64_LOG_ALLOCATE(it, size) \
 	{ia64_state_log[it].isl_log[IA64_LOG_CURR_INDEX(it)] = \
-		(ia64_err_rec_t *)alloc_bootmem(size); \
+		(ia64_err_rec_t *)memblock_alloc(size, 0); \
 	ia64_state_log[it].isl_log[IA64_LOG_NEXT_INDEX(it)] = \
-		(ia64_err_rec_t *)alloc_bootmem(size);}
+		(ia64_err_rec_t *)memblock_alloc(size, 0);}
 #define IA64_LOG_LOCK_INIT(it) spin_lock_init(&ia64_state_log[it].isl_lock)
 #define IA64_LOG_LOCK(it)      spin_lock_irqsave(&ia64_state_log[it].isl_lock, s)
 #define IA64_LOG_UNLOCK(it)    spin_unlock_irqrestore(&ia64_state_log[it].isl_lock,s)
diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
index acf10eb..5554863 100644
--- a/arch/ia64/mm/tlb.c
+++ b/arch/ia64/mm/tlb.c
@@ -59,8 +59,8 @@ struct ia64_tr_entry *ia64_idtrs[NR_CPUS];
 void __init
 mmu_context_init (void)
 {
-	ia64_ctx.bitmap = alloc_bootmem((ia64_ctx.max_ctx+1)>>3);
-	ia64_ctx.flushmap = alloc_bootmem((ia64_ctx.max_ctx+1)>>3);
+	ia64_ctx.bitmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3, 0);
+	ia64_ctx.flushmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3, 0);
 }
 
 /*
diff --git a/arch/m68k/sun3/sun3dvma.c b/arch/m68k/sun3/sun3dvma.c
index 8546922..72d9458 100644
--- a/arch/m68k/sun3/sun3dvma.c
+++ b/arch/m68k/sun3/sun3dvma.c
@@ -267,7 +267,8 @@ void __init dvma_init(void)
 
 	list_add(&(hole->list), &hole_list);
 
-	iommu_use = alloc_bootmem(IOMMU_TOTAL_ENTRIES * sizeof(unsigned long));
+	iommu_use = memblock_alloc(IOMMU_TOTAL_ENTRIES * sizeof(unsigned long),
+				   0);
 
 	dvma_unmap_iommu(DVMA_START, DVMA_SIZE);
 
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index df6de7c..8c7f074 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -377,7 +377,7 @@ void * __ref zalloc_maybe_bootmem(size_t size, gfp_t mask)
 	if (mem_init_done)
 		p = kzalloc(size, mask);
 	else {
-		p = alloc_bootmem(size);
+		p = memblock_alloc(size, 0);
 		if (p)
 			memset(p, 0, size);
 	}
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index a717c90..a6bc2f6 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -909,7 +909,7 @@ static void __init resource_init(void)
 		if (end >= HIGHMEM_START)
 			end = HIGHMEM_START - 1;
 
-		res = alloc_bootmem(sizeof(struct resource));
+		res = memblock_alloc(sizeof(struct resource), 0);
 
 		res->start = start;
 		res->end = end;
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index 3ef1b48..ef19a39 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -650,7 +650,7 @@ static int __init eth_setup(char *str)
 		return 1;
 	}
 
-	new = alloc_bootmem(sizeof(*new));
+	new = memblock_alloc(sizeof(*new), 0);
 
 	INIT_LIST_HEAD(&new->list);
 	new->index = n;
diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
index c84133c..9d77579 100644
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -1575,7 +1575,7 @@ static int __init vector_setup(char *str)
 				 str, error);
 		return 1;
 	}
-	new = alloc_bootmem(sizeof(*new));
+	new = memblock_alloc(sizeof(*new), 0);
 	INIT_LIST_HEAD(&new->list);
 	new->unit = n;
 	new->arguments = str;
diff --git a/arch/um/kernel/initrd.c b/arch/um/kernel/initrd.c
index 6f6e789..844056c 100644
--- a/arch/um/kernel/initrd.c
+++ b/arch/um/kernel/initrd.c
@@ -36,7 +36,7 @@ int __init read_initrd(void)
 		return 0;
 	}
 
-	area = alloc_bootmem(size);
+	area = memblock_alloc(size, 0);
 
 	if (load_initrd(initrd, area, size) == -1)
 		return 0;
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 3b20607..fd887c1 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -932,7 +932,8 @@ static int __init acpi_parse_hpet(struct acpi_table_header *table)
 	 * the resource tree during the lateinit timeframe.
 	 */
 #define HPET_RESOURCE_NAME_SIZE 9
-	hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE);
+	hpet_res = memblock_alloc(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE,
+				  0);
 
 	hpet_res->name = (void *)&hpet_res[1];
 	hpet_res->flags = IORESOURCE_MEM;
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index e25118f..8c74509 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2578,7 +2578,7 @@ static struct resource * __init ioapic_setup_resources(void)
 	n = IOAPIC_RESOURCE_NAME_SIZE + sizeof(struct resource);
 	n *= nr_ioapics;
 
-	mem = alloc_bootmem(n);
+	mem = memblock_alloc(n, 0);
 	res = (void *)mem;
 
 	mem += sizeof(struct resource) * nr_ioapics;
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index c88c23c..7ea8748 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -1094,7 +1094,7 @@ void __init e820__reserve_resources(void)
 	struct resource *res;
 	u64 end;
 
-	res = alloc_bootmem(sizeof(*res) * e820_table->nr_entries);
+	res = memblock_alloc(sizeof(*res) * e820_table->nr_entries, 0);
 	e820_res = res;
 
 	for (i = 0; i < e820_table->nr_entries; i++) {
diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
index d6ee929..140cd76 100644
--- a/arch/x86/platform/olpc/olpc_dt.c
+++ b/arch/x86/platform/olpc/olpc_dt.c
@@ -141,7 +141,7 @@ void * __init prom_early_alloc(unsigned long size)
 		 * fast enough on the platforms we care about while minimizing
 		 * wasted bootmem) and hand off chunks of it to callers.
 		 */
-		res = alloc_bootmem(chunk_size);
+		res = memblock_alloc(chunk_size, 0);
 		BUG_ON(!res);
 		prom_early_allocated += chunk_size;
 		memset(res, 0, chunk_size);
diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c
index d027ddd..206b9d4 100644
--- a/arch/xtensa/platforms/iss/network.c
+++ b/arch/xtensa/platforms/iss/network.c
@@ -646,7 +646,7 @@ static int __init iss_net_setup(char *str)
 		return 1;
 	}
 
-	new = alloc_bootmem(sizeof(*new));
+	new = memblock_alloc(sizeof(*new), 0);
 	if (new == NULL) {
 		pr_err("Alloc_bootmem failed\n");
 		return 1;
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index e8ae2e5..332fcca 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -493,7 +493,7 @@ int __init smu_init (void)
 		goto fail_np;
 	}
 
-	smu = alloc_bootmem(sizeof(struct smu_device));
+	smu = memblock_alloc(sizeof(struct smu_device), 0);
 
 	spin_lock_init(&smu->lock);
 	INIT_LIST_HEAD(&smu->cmd_list);
diff --git a/init/main.c b/init/main.c
index d0b92bd..99a9e99 100644
--- a/init/main.c
+++ b/init/main.c
@@ -768,8 +768,8 @@ static int __init initcall_blacklist(char *str)
 		str_entry = strsep(&str, ",");
 		if (str_entry) {
 			pr_debug("blacklisting initcall %s\n", str_entry);
-			entry = alloc_bootmem(sizeof(*entry));
-			entry->buf = alloc_bootmem(strlen(str_entry) + 1);
+			entry = memblock_alloc(sizeof(*entry), 0);
+			entry->buf = memblock_alloc(strlen(str_entry) + 1, 0);
 			strcpy(entry->buf, str_entry);
 			list_add(&entry->next, &blacklisted_initcalls);
 		}
-- 
2.7.4

From - Thu Nov 08 21:41:57 2018
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Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 22/30] mm: nobootmem: remove bootmem allocation APIs
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/797>

The bootmem compatibility APIs are not used and can be removed.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 include/linux/bootmem.h |  47 ----------
 mm/nobootmem.c          | 224 ------------------------------------------------
 2 files changed, 271 deletions(-)

diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index c97c105..73f1272 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -36,33 +36,6 @@ extern void free_bootmem_node(pg_data_t *pgdat,
 extern void free_bootmem(unsigned long physaddr, unsigned long size);
 extern void free_bootmem_late(unsigned long physaddr, unsigned long size);
 
-extern void *__alloc_bootmem(unsigned long size,
-			     unsigned long align,
-			     unsigned long goal);
-extern void *__alloc_bootmem_nopanic(unsigned long size,
-				     unsigned long align,
-				     unsigned long goal) __malloc;
-extern void *__alloc_bootmem_node(pg_data_t *pgdat,
-				  unsigned long size,
-				  unsigned long align,
-				  unsigned long goal) __malloc;
-void *__alloc_bootmem_node_high(pg_data_t *pgdat,
-				  unsigned long size,
-				  unsigned long align,
-				  unsigned long goal) __malloc;
-extern void *__alloc_bootmem_node_nopanic(pg_data_t *pgdat,
-				  unsigned long size,
-				  unsigned long align,
-				  unsigned long goal) __malloc;
-void *___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
-				  unsigned long size,
-				  unsigned long align,
-				  unsigned long goal,
-				  unsigned long limit) __malloc;
-extern void *__alloc_bootmem_low(unsigned long size,
-				 unsigned long align,
-				 unsigned long goal) __malloc;
-
 /* We are using top down, so it is safe to use 0 here */
 #define BOOTMEM_LOW_LIMIT 0
 
@@ -70,26 +43,6 @@ extern void *__alloc_bootmem_low(unsigned long size,
 #define ARCH_LOW_ADDRESS_LIMIT  0xffffffffUL
 #endif
 
-#define alloc_bootmem(x) \
-	__alloc_bootmem(x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_align(x, align) \
-	__alloc_bootmem(x, align, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_pages(x) \
-	__alloc_bootmem(x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_pages_nopanic(x) \
-	__alloc_bootmem_nopanic(x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_node(pgdat, x) \
-	__alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_node_nopanic(pgdat, x) \
-	__alloc_bootmem_node_nopanic(pgdat, x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_pages_node(pgdat, x) \
-	__alloc_bootmem_node(pgdat, x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
-
-#define alloc_bootmem_low(x) \
-	__alloc_bootmem_low(x, SMP_CACHE_BYTES, 0)
-#define alloc_bootmem_low_pages(x) \
-	__alloc_bootmem_low(x, PAGE_SIZE, 0)
-
 /* FIXME: use MEMBLOCK_ALLOC_* variants here */
 #define BOOTMEM_ALLOC_ACCESSIBLE	0
 #define BOOTMEM_ALLOC_ANYWHERE		(~(phys_addr_t)0)
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 44ce7de..bc38e56 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -33,41 +33,6 @@ unsigned long min_low_pfn;
 unsigned long max_pfn;
 unsigned long long max_possible_pfn;
 
-static void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
-					u64 goal, u64 limit)
-{
-	void *ptr;
-	u64 addr;
-	enum memblock_flags flags = choose_memblock_flags();
-
-	if (limit > memblock.current_limit)
-		limit = memblock.current_limit;
-
-again:
-	addr = memblock_find_in_range_node(size, align, goal, limit, nid,
-					   flags);
-	if (!addr && (flags & MEMBLOCK_MIRROR)) {
-		flags &= ~MEMBLOCK_MIRROR;
-		pr_warn("Could not allocate %pap bytes of mirrored memory\n",
-			&size);
-		goto again;
-	}
-	if (!addr)
-		return NULL;
-
-	if (memblock_reserve(addr, size))
-		return NULL;
-
-	ptr = phys_to_virt(addr);
-	memset(ptr, 0, size);
-	/*
-	 * The min_count is set to 0 so that bootmem allocated blocks
-	 * are never reported as leaks.
-	 */
-	kmemleak_alloc(ptr, size, 0, 0);
-	return ptr;
-}
-
 /**
  * free_bootmem_late - free bootmem pages directly to page allocator
  * @addr: starting address of the range
@@ -215,192 +180,3 @@ void __init free_bootmem(unsigned long addr, unsigned long size)
 {
 	memblock_free(addr, size);
 }
-
-static void * __init ___alloc_bootmem_nopanic(unsigned long size,
-					unsigned long align,
-					unsigned long goal,
-					unsigned long limit)
-{
-	void *ptr;
-
-	if (WARN_ON_ONCE(slab_is_available()))
-		return kzalloc(size, GFP_NOWAIT);
-
-restart:
-
-	ptr = __alloc_memory_core_early(NUMA_NO_NODE, size, align, goal, limit);
-
-	if (ptr)
-		return ptr;
-
-	if (goal != 0) {
-		goal = 0;
-		goto restart;
-	}
-
-	return NULL;
-}
-
-/**
- * __alloc_bootmem_nopanic - allocate boot memory without panicking
- * @size: size of the request in bytes
- * @align: alignment of the region
- * @goal: preferred starting address of the region
- *
- * The goal is dropped if it can not be satisfied and the allocation will
- * fall back to memory below @goal.
- *
- * Allocation may happen on any node in the system.
- *
- * Return: address of the allocated region or %NULL on failure.
- */
-void * __init __alloc_bootmem_nopanic(unsigned long size, unsigned long align,
-					unsigned long goal)
-{
-	unsigned long limit = -1UL;
-
-	return ___alloc_bootmem_nopanic(size, align, goal, limit);
-}
-
-static void * __init ___alloc_bootmem(unsigned long size, unsigned long align,
-					unsigned long goal, unsigned long limit)
-{
-	void *mem = ___alloc_bootmem_nopanic(size, align, goal, limit);
-
-	if (mem)
-		return mem;
-	/*
-	 * Whoops, we cannot satisfy the allocation request.
-	 */
-	pr_alert("bootmem alloc of %lu bytes failed!\n", size);
-	panic("Out of memory");
-	return NULL;
-}
-
-/**
- * __alloc_bootmem - allocate boot memory
- * @size: size of the request in bytes
- * @align: alignment of the region
- * @goal: preferred starting address of the region
- *
- * The goal is dropped if it can not be satisfied and the allocation will
- * fall back to memory below @goal.
- *
- * Allocation may happen on any node in the system.
- *
- * The function panics if the request can not be satisfied.
- *
- * Return: address of the allocated region.
- */
-void * __init __alloc_bootmem(unsigned long size, unsigned long align,
-			      unsigned long goal)
-{
-	unsigned long limit = -1UL;
-
-	return ___alloc_bootmem(size, align, goal, limit);
-}
-
-void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
-						   unsigned long size,
-						   unsigned long align,
-						   unsigned long goal,
-						   unsigned long limit)
-{
-	void *ptr;
-
-again:
-	ptr = __alloc_memory_core_early(pgdat->node_id, size, align,
-					goal, limit);
-	if (ptr)
-		return ptr;
-
-	ptr = __alloc_memory_core_early(NUMA_NO_NODE, size, align,
-					goal, limit);
-	if (ptr)
-		return ptr;
-
-	if (goal) {
-		goal = 0;
-		goto again;
-	}
-
-	return NULL;
-}
-
-void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size,
-				   unsigned long align, unsigned long goal)
-{
-	if (WARN_ON_ONCE(slab_is_available()))
-		return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
-
-	return ___alloc_bootmem_node_nopanic(pgdat, size, align, goal, 0);
-}
-
-static void * __init ___alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
-				    unsigned long align, unsigned long goal,
-				    unsigned long limit)
-{
-	void *ptr;
-
-	ptr = ___alloc_bootmem_node_nopanic(pgdat, size, align, goal, limit);
-	if (ptr)
-		return ptr;
-
-	pr_alert("bootmem alloc of %lu bytes failed!\n", size);
-	panic("Out of memory");
-	return NULL;
-}
-
-/**
- * __alloc_bootmem_node - allocate boot memory from a specific node
- * @pgdat: node to allocate from
- * @size: size of the request in bytes
- * @align: alignment of the region
- * @goal: preferred starting address of the region
- *
- * The goal is dropped if it can not be satisfied and the allocation will
- * fall back to memory below @goal.
- *
- * Allocation may fall back to any node in the system if the specified node
- * can not hold the requested memory.
- *
- * The function panics if the request can not be satisfied.
- *
- * Return: address of the allocated region.
- */
-void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
-				   unsigned long align, unsigned long goal)
-{
-	if (WARN_ON_ONCE(slab_is_available()))
-		return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
-
-	return ___alloc_bootmem_node(pgdat, size, align, goal, 0);
-}
-
-void * __init __alloc_bootmem_node_high(pg_data_t *pgdat, unsigned long size,
-				   unsigned long align, unsigned long goal)
-{
-	return __alloc_bootmem_node(pgdat, size, align, goal);
-}
-
-
-/**
- * __alloc_bootmem_low - allocate low boot memory
- * @size: size of the request in bytes
- * @align: alignment of the region
- * @goal: preferred starting address of the region
- *
- * The goal is dropped if it can not be satisfied and the allocation will
- * fall back to memory below @goal.
- *
- * Allocation may happen on any node in the system.
- *
- * The function panics if the request can not be satisfied.
- *
- * Return: address of the allocated region.
- */
-void * __init __alloc_bootmem_low(unsigned long size, unsigned long align,
-				  unsigned long goal)
-{
-	return ___alloc_bootmem(size, align, goal, ARCH_LOW_ADDRESS_LIMIT);
-}
-- 
2.7.4

From - Thu Nov 08 21:41:57 2018
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 23/30] memblock: replace free_bootmem{_node} with memblock_free
Date: Fri, 14 Sep 2018 15:10:38 +0300
Lines: 331
Approved: news@gmane.org
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/798>

The free_bootmem and free_bootmem_node are merely wrappers for
memblock_free. Replace their usage with a call to memblock_free using the
following semantic patch:

@@
expression e1, e2, e3;
@@
(
- free_bootmem(e1, e2)
+ memblock_free(e1, e2)
|
- free_bootmem_node(e1, e2, e3)
+ memblock_free(e2, e3)
)

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/alpha/kernel/core_irongate.c |  3 +--
 arch/arm64/mm/init.c              |  2 +-
 arch/mips/kernel/setup.c          |  2 +-
 arch/powerpc/kernel/setup_64.c    |  2 +-
 arch/sparc/kernel/smp_64.c        |  2 +-
 arch/um/kernel/mem.c              |  3 ++-
 arch/unicore32/mm/init.c          |  2 +-
 arch/x86/kernel/setup_percpu.c    |  3 ++-
 arch/x86/kernel/tce_64.c          |  3 ++-
 arch/x86/xen/p2m.c                |  3 ++-
 drivers/macintosh/smu.c           |  2 +-
 drivers/usb/early/xhci-dbc.c      | 11 ++++++-----
 drivers/xen/swiotlb-xen.c         |  4 +++-
 include/linux/bootmem.h           |  4 ----
 mm/nobootmem.c                    | 30 ------------------------------
 15 files changed, 24 insertions(+), 52 deletions(-)

diff --git a/arch/alpha/kernel/core_irongate.c b/arch/alpha/kernel/core_irongate.c
index f709866..35572be 100644
--- a/arch/alpha/kernel/core_irongate.c
+++ b/arch/alpha/kernel/core_irongate.c
@@ -234,8 +234,7 @@ albacore_init_arch(void)
 			unsigned long size;
 
 			size = initrd_end - initrd_start;
-			free_bootmem_node(NODE_DATA(0), __pa(initrd_start),
-					  PAGE_ALIGN(size));
+			memblock_free(__pa(initrd_start), PAGE_ALIGN(size));
 			if (!move_initrd(pci_mem))
 				printk("irongate_init_arch: initrd too big "
 				       "(%ldK)\ndisabling initrd\n",
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 787e279..e335452 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -538,7 +538,7 @@ static inline void free_memmap(unsigned long start_pfn, unsigned long end_pfn)
 	 * memmap array.
 	 */
 	if (pg < pgend)
-		free_bootmem(pg, pgend - pg);
+		memblock_free(pg, pgend - pg);
 }
 
 /*
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index a6bc2f6..86c9eda 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -561,7 +561,7 @@ static void __init bootmem_init(void)
 		extern void show_kernel_relocation(const char *level);
 
 		offset = __pa_symbol(_text) - __pa_symbol(VMLINUX_LOAD_ADDRESS);
-		free_bootmem(__pa_symbol(VMLINUX_LOAD_ADDRESS), offset);
+		memblock_free(__pa_symbol(VMLINUX_LOAD_ADDRESS), offset);
 
 #if defined(CONFIG_DEBUG_KERNEL) && defined(CONFIG_DEBUG_INFO)
 		/*
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 6add560..e564b27 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -765,7 +765,7 @@ static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, size_t align)
 
 static void __init pcpu_fc_free(void *ptr, size_t size)
 {
-	free_bootmem(__pa(ptr), size);
+	memblock_free(__pa(ptr), size);
 }
 
 static int pcpu_cpu_distance(unsigned int from, unsigned int to)
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 337febd..a087a6a 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1607,7 +1607,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size,
 
 static void __init pcpu_free_bootmem(void *ptr, size_t size)
 {
-	free_bootmem(__pa(ptr), size);
+	memblock_free(__pa(ptr), size);
 }
 
 static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 185f6bb..3555c13 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -6,6 +6,7 @@
 #include <linux/stddef.h>
 #include <linux/module.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/highmem.h>
 #include <linux/mm.h>
 #include <linux/swap.h>
@@ -46,7 +47,7 @@ void __init mem_init(void)
 	 */
 	brk_end = (unsigned long) UML_ROUND_UP(sbrk(0));
 	map_memory(brk_end, __pa(brk_end), uml_reserved - brk_end, 1, 1, 0);
-	free_bootmem(__pa(brk_end), uml_reserved - brk_end);
+	memblock_free(__pa(brk_end), uml_reserved - brk_end);
 	uml_reserved = brk_end;
 
 	/* this will put all low memory onto the freelists */
diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
index 44ccc15..4c572ab 100644
--- a/arch/unicore32/mm/init.c
+++ b/arch/unicore32/mm/init.c
@@ -241,7 +241,7 @@ free_memmap(unsigned long start_pfn, unsigned long end_pfn)
 	 * free the section of the memmap array.
 	 */
 	if (pg < pgend)
-		free_bootmem(pg, pgend - pg);
+		memblock_free(pg, pgend - pg);
 }
 
 /*
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index 041663a..a006f1b 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -5,6 +5,7 @@
 #include <linux/export.h>
 #include <linux/init.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/percpu.h>
 #include <linux/kexec.h>
 #include <linux/crash_dump.h>
@@ -135,7 +136,7 @@ static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, size_t align)
 
 static void __init pcpu_fc_free(void *ptr, size_t size)
 {
-	free_bootmem(__pa(ptr), size);
+	memblock_free(__pa(ptr), size);
 }
 
 static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)
diff --git a/arch/x86/kernel/tce_64.c b/arch/x86/kernel/tce_64.c
index 54c9b5a..75730ce 100644
--- a/arch/x86/kernel/tce_64.c
+++ b/arch/x86/kernel/tce_64.c
@@ -31,6 +31,7 @@
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <asm/tce.h>
 #include <asm/calgary.h>
 #include <asm/proto.h>
@@ -186,5 +187,5 @@ void __init free_tce_table(void *tbl)
 	size = table_size_to_number_of_entries(specified_table_size);
 	size *= TCE_ENTRY_SIZE;
 
-	free_bootmem(__pa(tbl), size);
+	memblock_free(__pa(tbl), size);
 }
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 5de761b..b3e11af 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -68,6 +68,7 @@
 #include <linux/sched.h>
 #include <linux/seq_file.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 
@@ -190,7 +191,7 @@ static void * __ref alloc_p2m_page(void)
 static void __ref free_p2m_page(void *p)
 {
 	if (unlikely(!slab_is_available())) {
-		free_bootmem((unsigned long)p, PAGE_SIZE);
+		memblock_free((unsigned long)p, PAGE_SIZE);
 		return;
 	}
 
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index 332fcca..0069f90 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -569,7 +569,7 @@ int __init smu_init (void)
 fail_db_node:
 	of_node_put(smu->db_node);
 fail_bootmem:
-	free_bootmem(__pa(smu), sizeof(struct smu_device));
+	memblock_free(__pa(smu), sizeof(struct smu_device));
 	smu = NULL;
 fail_np:
 	of_node_put(np);
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
index 16df968..4411404 100644
--- a/drivers/usb/early/xhci-dbc.c
+++ b/drivers/usb/early/xhci-dbc.c
@@ -13,6 +13,7 @@
 #include <linux/pci_regs.h>
 #include <linux/pci_ids.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/io.h>
 #include <asm/pci-direct.h>
 #include <asm/fixmap.h>
@@ -191,7 +192,7 @@ static void __init xdbc_free_ring(struct xdbc_ring *ring)
 	if (!seg)
 		return;
 
-	free_bootmem(seg->dma, PAGE_SIZE);
+	memblock_free(seg->dma, PAGE_SIZE);
 	ring->segment = NULL;
 }
 
@@ -675,10 +676,10 @@ int __init early_xdbc_setup_hardware(void)
 		xdbc_free_ring(&xdbc.in_ring);
 
 		if (xdbc.table_dma)
-			free_bootmem(xdbc.table_dma, PAGE_SIZE);
+			memblock_free(xdbc.table_dma, PAGE_SIZE);
 
 		if (xdbc.out_dma)
-			free_bootmem(xdbc.out_dma, PAGE_SIZE);
+			memblock_free(xdbc.out_dma, PAGE_SIZE);
 
 		xdbc.table_base = NULL;
 		xdbc.out_buf = NULL;
@@ -1000,8 +1001,8 @@ static int __init xdbc_init(void)
 	xdbc_free_ring(&xdbc.evt_ring);
 	xdbc_free_ring(&xdbc.out_ring);
 	xdbc_free_ring(&xdbc.in_ring);
-	free_bootmem(xdbc.table_dma, PAGE_SIZE);
-	free_bootmem(xdbc.out_dma, PAGE_SIZE);
+	memblock_free(xdbc.table_dma, PAGE_SIZE);
+	memblock_free(xdbc.out_dma, PAGE_SIZE);
 	writel(0, &xdbc.xdbc_reg->control);
 	early_iounmap(xdbc.xhci_base, xdbc.xhci_length);
 
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 8d849b4..6c13ff4 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -36,6 +36,7 @@
 #define pr_fmt(fmt) "xen:" KBUILD_MODNAME ": " fmt
 
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/dma-direct.h>
 #include <linux/export.h>
 #include <xen/swiotlb-xen.h>
@@ -248,7 +249,8 @@ int __ref xen_swiotlb_init(int verbose, bool early)
 			       xen_io_tlb_nslabs);
 	if (rc) {
 		if (early)
-			free_bootmem(__pa(xen_io_tlb_start), PAGE_ALIGN(bytes));
+			memblock_free(__pa(xen_io_tlb_start),
+				      PAGE_ALIGN(bytes));
 		else {
 			free_pages((unsigned long)xen_io_tlb_start, order);
 			xen_io_tlb_start = NULL;
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 73f1272..706cf8e 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -30,10 +30,6 @@ extern unsigned long free_all_bootmem(void);
 extern void reset_node_managed_pages(pg_data_t *pgdat);
 extern void reset_all_zones_managed_pages(void);
 
-extern void free_bootmem_node(pg_data_t *pgdat,
-			      unsigned long addr,
-			      unsigned long size);
-extern void free_bootmem(unsigned long physaddr, unsigned long size);
 extern void free_bootmem_late(unsigned long physaddr, unsigned long size);
 
 /* We are using top down, so it is safe to use 0 here */
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index bc38e56..85e1822 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -150,33 +150,3 @@ unsigned long __init free_all_bootmem(void)
 
 	return pages;
 }
-
-/**
- * free_bootmem_node - mark a page range as usable
- * @pgdat: node the range resides on
- * @physaddr: starting physical address of the range
- * @size: size of the range in bytes
- *
- * Partial pages will be considered reserved and left as they are.
- *
- * The range must reside completely on the specified node.
- */
-void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
-			      unsigned long size)
-{
-	memblock_free(physaddr, size);
-}
-
-/**
- * free_bootmem - mark a page range as usable
- * @addr: starting physical address of the range
- * @size: size of the range in bytes
- *
- * Partial pages will be considered reserved and left as they are.
- *
- * The range must be contiguous but may span node boundaries.
- */
-void __init free_bootmem(unsigned long addr, unsigned long size)
-{
-	memblock_free(addr, size);
-}
-- 
2.7.4

From - Thu Nov 08 21:41:57 2018
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Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 24/30] memblock: replace free_bootmem_late with
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Date: Fri, 14 Sep 2018 15:10:39 +0300
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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Xref: news.gmane.org gmane.linux.ports.riscv:799 gmane.linux.kernel.mm:203335 gmane.linux.ports.mips.general:66637 gmane.linux.ports.ia64:29232 gmane.linux.ports.sh.devel:57508 gmane.linux.ports.sparc:28420 gmane.linux.ports.hexagon:1849 gmane.linux.kernel.arc:4362 gmane.linux.ports.alpha:5238 gmane.linux.ports.arm.kernel:674207 gmane.linux.ports.parisc:28960 gmane.linux.kernel:2870780 gmane.linux.ports.ppc64.devel:162495
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/799>

The free_bootmem_late and memblock_free_late do exactly the same thing:
they iterate over a range and give pages to the page allocator.

Replace calls to free_bootmem_late with calls to memblock_free_late and
remove the bootmem variant.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/sparc/kernel/mdesc.c               |  3 ++-
 arch/x86/platform/efi/quirks.c          |  6 +++---
 drivers/firmware/efi/apple-properties.c |  2 +-
 include/linux/bootmem.h                 |  2 --
 mm/nobootmem.c                          | 24 ------------------------
 5 files changed, 6 insertions(+), 31 deletions(-)

diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index 59131e7..a41526b 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -12,6 +12,7 @@
 #include <linux/mm.h>
 #include <linux/miscdevice.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 #include <linux/refcount.h>
 
@@ -190,7 +191,7 @@ static void __init mdesc_memblock_free(struct mdesc_handle *hp)
 
 	alloc_size = PAGE_ALIGN(hp->handle_size);
 	start = __pa(hp);
-	free_bootmem_late(start, alloc_size);
+	memblock_free_late(start, alloc_size);
 }
 
 static struct mdesc_mem_ops memblock_mdesc_ops = {
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index 844d31c..7b4854c 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -332,7 +332,7 @@ void __init efi_reserve_boot_services(void)
 
 		/*
 		 * Because the following memblock_reserve() is paired
-		 * with free_bootmem_late() for this region in
+		 * with memblock_free_late() for this region in
 		 * efi_free_boot_services(), we must be extremely
 		 * careful not to reserve, and subsequently free,
 		 * critical regions of memory (like the kernel image) or
@@ -363,7 +363,7 @@ void __init efi_reserve_boot_services(void)
 		 * doesn't make sense as far as the firmware is
 		 * concerned, but it does provide us with a way to tag
 		 * those regions that must not be paired with
-		 * free_bootmem_late().
+		 * memblock_free_late().
 		 */
 		md->attribute |= EFI_MEMORY_RUNTIME;
 	}
@@ -413,7 +413,7 @@ void __init efi_free_boot_services(void)
 			size -= rm_size;
 		}
 
-		free_bootmem_late(start, size);
+		memblock_free_late(start, size);
 	}
 
 	if (!num_entries)
diff --git a/drivers/firmware/efi/apple-properties.c b/drivers/firmware/efi/apple-properties.c
index 60a9571..2b675f7 100644
--- a/drivers/firmware/efi/apple-properties.c
+++ b/drivers/firmware/efi/apple-properties.c
@@ -235,7 +235,7 @@ static int __init map_properties(void)
 		 */
 		data->len = 0;
 		memunmap(data);
-		free_bootmem_late(pa_data + sizeof(*data), data_len);
+		memblock_free_late(pa_data + sizeof(*data), data_len);
 
 		return ret;
 	}
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 706cf8e..bcc7e2f 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -30,8 +30,6 @@ extern unsigned long free_all_bootmem(void);
 extern void reset_node_managed_pages(pg_data_t *pgdat);
 extern void reset_all_zones_managed_pages(void);
 
-extern void free_bootmem_late(unsigned long physaddr, unsigned long size);
-
 /* We are using top down, so it is safe to use 0 here */
 #define BOOTMEM_LOW_LIMIT 0
 
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 85e1822..ee0f7fc 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -33,30 +33,6 @@ unsigned long min_low_pfn;
 unsigned long max_pfn;
 unsigned long long max_possible_pfn;
 
-/**
- * free_bootmem_late - free bootmem pages directly to page allocator
- * @addr: starting address of the range
- * @size: size of the range in bytes
- *
- * This is only useful when the bootmem allocator has already been torn
- * down, but we are still initializing the system.  Pages are given directly
- * to the page allocator, no bootmem metadata is updated because it is gone.
- */
-void __init free_bootmem_late(unsigned long addr, unsigned long size)
-{
-	unsigned long cursor, end;
-
-	kmemleak_free_part_phys(addr, size);
-
-	cursor = PFN_UP(addr);
-	end = PFN_DOWN(addr + size);
-
-	for (; cursor < end; cursor++) {
-		__free_pages_bootmem(pfn_to_page(cursor), cursor, 0);
-		totalram_pages++;
-	}
-}
-
 static void __init __free_pages_memory(unsigned long start, unsigned long end)
 {
 	int order;
-- 
2.7.4

From - Thu Nov 08 21:41:57 2018
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 27/30] mm: remove nobootmem
Date: Fri, 14 Sep 2018 15:10:42 +0300
Lines: 282
Approved: news@gmane.org
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/800>

Move a few remaining functions from nobootmem.c to memblock.c and remove
nobootmem

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 mm/Makefile    |   1 -
 mm/memblock.c  | 104 ++++++++++++++++++++++++++++++++++++++++++++++
 mm/nobootmem.c | 128 ---------------------------------------------------------
 3 files changed, 104 insertions(+), 129 deletions(-)
 delete mode 100644 mm/nobootmem.c

diff --git a/mm/Makefile b/mm/Makefile
index ca3c844..d210cc9 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -42,7 +42,6 @@ obj-y			:= filemap.o mempool.o oom_kill.o fadvise.o \
 			   debug.o $(mmu-y)
 
 obj-y += init-mm.o
-obj-y += nobootmem.o
 obj-y += memblock.o
 
 ifdef CONFIG_MMU
diff --git a/mm/memblock.c b/mm/memblock.c
index a2cd61d..4591f38 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -82,6 +82,16 @@
  * initialization compltes.
  */
 
+#ifndef CONFIG_NEED_MULTIPLE_NODES
+struct pglist_data __refdata contig_page_data;
+EXPORT_SYMBOL(contig_page_data);
+#endif
+
+unsigned long max_low_pfn;
+unsigned long min_low_pfn;
+unsigned long max_pfn;
+unsigned long long max_possible_pfn;
+
 static struct memblock_region memblock_memory_init_regions[INIT_MEMBLOCK_REGIONS] __initdata_memblock;
 static struct memblock_region memblock_reserved_init_regions[INIT_MEMBLOCK_REGIONS] __initdata_memblock;
 #ifdef CONFIG_HAVE_MEMBLOCK_PHYS_MAP
@@ -1929,6 +1939,100 @@ static int __init early_memblock(char *p)
 }
 early_param("memblock", early_memblock);
 
+static void __init __free_pages_memory(unsigned long start, unsigned long end)
+{
+	int order;
+
+	while (start < end) {
+		order = min(MAX_ORDER - 1UL, __ffs(start));
+
+		while (start + (1UL << order) > end)
+			order--;
+
+		memblock_free_pages(pfn_to_page(start), start, order);
+
+		start += (1UL << order);
+	}
+}
+
+static unsigned long __init __free_memory_core(phys_addr_t start,
+				 phys_addr_t end)
+{
+	unsigned long start_pfn = PFN_UP(start);
+	unsigned long end_pfn = min_t(unsigned long,
+				      PFN_DOWN(end), max_low_pfn);
+
+	if (start_pfn >= end_pfn)
+		return 0;
+
+	__free_pages_memory(start_pfn, end_pfn);
+
+	return end_pfn - start_pfn;
+}
+
+static unsigned long __init free_low_memory_core_early(void)
+{
+	unsigned long count = 0;
+	phys_addr_t start, end;
+	u64 i;
+
+	memblock_clear_hotplug(0, -1);
+
+	for_each_reserved_mem_region(i, &start, &end)
+		reserve_bootmem_region(start, end);
+
+	/*
+	 * We need to use NUMA_NO_NODE instead of NODE_DATA(0)->node_id
+	 *  because in some case like Node0 doesn't have RAM installed
+	 *  low ram will be on Node1
+	 */
+	for_each_free_mem_range(i, NUMA_NO_NODE, MEMBLOCK_NONE, &start, &end,
+				NULL)
+		count += __free_memory_core(start, end);
+
+	return count;
+}
+
+static int reset_managed_pages_done __initdata;
+
+void reset_node_managed_pages(pg_data_t *pgdat)
+{
+	struct zone *z;
+
+	for (z = pgdat->node_zones; z < pgdat->node_zones + MAX_NR_ZONES; z++)
+		z->managed_pages = 0;
+}
+
+void __init reset_all_zones_managed_pages(void)
+{
+	struct pglist_data *pgdat;
+
+	if (reset_managed_pages_done)
+		return;
+
+	for_each_online_pgdat(pgdat)
+		reset_node_managed_pages(pgdat);
+
+	reset_managed_pages_done = 1;
+}
+
+/**
+ * memblock_free_all - release free pages to the buddy allocator
+ *
+ * Return: the number of pages actually released.
+ */
+unsigned long __init memblock_free_all(void)
+{
+	unsigned long pages;
+
+	reset_all_zones_managed_pages();
+
+	pages = free_low_memory_core_early();
+	totalram_pages += pages;
+
+	return pages;
+}
+
 #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_ARCH_DISCARD_MEMBLOCK)
 
 static int memblock_debug_show(struct seq_file *m, void *private)
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
deleted file mode 100644
index 9608bc5..0000000
--- a/mm/nobootmem.c
+++ /dev/null
@@ -1,128 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *  bootmem - A boot-time physical memory allocator and configurator
- *
- *  Copyright (C) 1999 Ingo Molnar
- *                1999 Kanoj Sarcar, SGI
- *                2008 Johannes Weiner
- *
- * Access to this subsystem has to be serialized externally (which is true
- * for the boot process anyway).
- */
-#include <linux/init.h>
-#include <linux/pfn.h>
-#include <linux/slab.h>
-#include <linux/export.h>
-#include <linux/kmemleak.h>
-#include <linux/range.h>
-#include <linux/memblock.h>
-#include <linux/bootmem.h>
-
-#include <asm/bug.h>
-#include <asm/io.h>
-
-#include "internal.h"
-
-#ifndef CONFIG_NEED_MULTIPLE_NODES
-struct pglist_data __refdata contig_page_data;
-EXPORT_SYMBOL(contig_page_data);
-#endif
-
-unsigned long max_low_pfn;
-unsigned long min_low_pfn;
-unsigned long max_pfn;
-unsigned long long max_possible_pfn;
-
-static void __init __free_pages_memory(unsigned long start, unsigned long end)
-{
-	int order;
-
-	while (start < end) {
-		order = min(MAX_ORDER - 1UL, __ffs(start));
-
-		while (start + (1UL << order) > end)
-			order--;
-
-		memblock_free_pages(pfn_to_page(start), start, order);
-
-		start += (1UL << order);
-	}
-}
-
-static unsigned long __init __free_memory_core(phys_addr_t start,
-				 phys_addr_t end)
-{
-	unsigned long start_pfn = PFN_UP(start);
-	unsigned long end_pfn = min_t(unsigned long,
-				      PFN_DOWN(end), max_low_pfn);
-
-	if (start_pfn >= end_pfn)
-		return 0;
-
-	__free_pages_memory(start_pfn, end_pfn);
-
-	return end_pfn - start_pfn;
-}
-
-static unsigned long __init free_low_memory_core_early(void)
-{
-	unsigned long count = 0;
-	phys_addr_t start, end;
-	u64 i;
-
-	memblock_clear_hotplug(0, -1);
-
-	for_each_reserved_mem_region(i, &start, &end)
-		reserve_bootmem_region(start, end);
-
-	/*
-	 * We need to use NUMA_NO_NODE instead of NODE_DATA(0)->node_id
-	 *  because in some case like Node0 doesn't have RAM installed
-	 *  low ram will be on Node1
-	 */
-	for_each_free_mem_range(i, NUMA_NO_NODE, MEMBLOCK_NONE, &start, &end,
-				NULL)
-		count += __free_memory_core(start, end);
-
-	return count;
-}
-
-static int reset_managed_pages_done __initdata;
-
-void reset_node_managed_pages(pg_data_t *pgdat)
-{
-	struct zone *z;
-
-	for (z = pgdat->node_zones; z < pgdat->node_zones + MAX_NR_ZONES; z++)
-		z->managed_pages = 0;
-}
-
-void __init reset_all_zones_managed_pages(void)
-{
-	struct pglist_data *pgdat;
-
-	if (reset_managed_pages_done)
-		return;
-
-	for_each_online_pgdat(pgdat)
-		reset_node_managed_pages(pgdat);
-
-	reset_managed_pages_done = 1;
-}
-
-/**
- * memblock_free_all - release free pages to the buddy allocator
- *
- * Return: the number of pages actually released.
- */
-unsigned long __init memblock_free_all(void)
-{
-	unsigned long pages;
-
-	reset_all_zones_managed_pages();
-
-	pages = free_low_memory_core_early();
-	totalram_pages += pages;
-
-	return pages;
-}
-- 
2.7.4

From - Thu Nov 08 21:41:57 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 28/30] memblock: replace BOOTMEM_ALLOC_* with MEMBLOCK variants
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4364>

Drop BOOTMEM_ALLOC_ACCESSIBLE and BOOTMEM_ALLOC_ANYWHERE in favor of
identical MEMBLOCK definitions.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/ia64/mm/discontig.c       | 2 +-
 arch/powerpc/kernel/setup_64.c | 2 +-
 arch/sparc/kernel/smp_64.c     | 2 +-
 arch/x86/kernel/setup_percpu.c | 2 +-
 arch/x86/mm/kasan_init_64.c    | 4 ++--
 mm/hugetlb.c                   | 3 ++-
 mm/kasan/kasan_init.c          | 2 +-
 mm/memblock.c                  | 8 ++++----
 mm/page_ext.c                  | 2 +-
 mm/sparse-vmemmap.c            | 3 ++-
 mm/sparse.c                    | 5 +++--
 11 files changed, 19 insertions(+), 16 deletions(-)

diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 918dda9..70609f8 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -453,7 +453,7 @@ static void __init *memory_less_node_alloc(int nid, unsigned long pernodesize)
 
 	ptr = memblock_alloc_try_nid(pernodesize, PERCPU_PAGE_SIZE,
 				     __pa(MAX_DMA_ADDRESS),
-				     BOOTMEM_ALLOC_ACCESSIBLE,
+				     MEMBLOCK_ALLOC_ACCESSIBLE,
 				     bestnode);
 
 	return ptr;
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index e564b27..b3e70cc 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -758,7 +758,7 @@ void __init emergency_stack_init(void)
 static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, size_t align)
 {
 	return memblock_alloc_try_nid(size, align, __pa(MAX_DMA_ADDRESS),
-				      BOOTMEM_ALLOC_ACCESSIBLE,
+				      MEMBLOCK_ALLOC_ACCESSIBLE,
 				      early_cpu_to_node(cpu));
 
 }
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index a087a6a..6cc80d0 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1595,7 +1595,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size,
 			 cpu, size, __pa(ptr));
 	} else {
 		ptr = memblock_alloc_try_nid(size, align, goal,
-					     BOOTMEM_ALLOC_ACCESSIBLE, node);
+					     MEMBLOCK_ALLOC_ACCESSIBLE, node);
 		pr_debug("per cpu data for cpu%d %lu bytes on node%d at "
 			 "%016lx\n", cpu, size, node, __pa(ptr));
 	}
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index a006f1b..483412f 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -114,7 +114,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size,
 			 cpu, size, __pa(ptr));
 	} else {
 		ptr = memblock_alloc_try_nid_nopanic(size, align, goal,
-						     BOOTMEM_ALLOC_ACCESSIBLE,
+						     MEMBLOCK_ALLOC_ACCESSIBLE,
 						     node);
 
 		pr_debug("per cpu data for cpu%d %lu bytes on node%d at %016lx\n",
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index 77b857c..8f87499 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -29,10 +29,10 @@ static __init void *early_alloc(size_t size, int nid, bool panic)
 {
 	if (panic)
 		return memblock_alloc_try_nid(size, size,
-			__pa(MAX_DMA_ADDRESS), BOOTMEM_ALLOC_ACCESSIBLE, nid);
+			__pa(MAX_DMA_ADDRESS), MEMBLOCK_ALLOC_ACCESSIBLE, nid);
 	else
 		return memblock_alloc_try_nid_nopanic(size, size,
-			__pa(MAX_DMA_ADDRESS), BOOTMEM_ALLOC_ACCESSIBLE, nid);
+			__pa(MAX_DMA_ADDRESS), MEMBLOCK_ALLOC_ACCESSIBLE, nid);
 }
 
 static void __init kasan_populate_pmd(pmd_t *pmd, unsigned long addr,
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 3b63370..67629dc 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -16,6 +16,7 @@
 #include <linux/cpuset.h>
 #include <linux/mutex.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/sysfs.h>
 #include <linux/slab.h>
 #include <linux/mmdebug.h>
@@ -2102,7 +2103,7 @@ int __alloc_bootmem_huge_page(struct hstate *h)
 
 		addr = memblock_alloc_try_nid_raw(
 				huge_page_size(h), huge_page_size(h),
-				0, BOOTMEM_ALLOC_ACCESSIBLE, node);
+				0, MEMBLOCK_ALLOC_ACCESSIBLE, node);
 		if (addr) {
 			/*
 			 * Use the beginning of the huge page to store the
diff --git a/mm/kasan/kasan_init.c b/mm/kasan/kasan_init.c
index 24d734b..785a970 100644
--- a/mm/kasan/kasan_init.c
+++ b/mm/kasan/kasan_init.c
@@ -84,7 +84,7 @@ static inline bool kasan_zero_page_entry(pte_t pte)
 static __init void *early_alloc(size_t size, int node)
 {
 	return memblock_alloc_try_nid(size, size, __pa(MAX_DMA_ADDRESS),
-					BOOTMEM_ALLOC_ACCESSIBLE, node);
+					MEMBLOCK_ALLOC_ACCESSIBLE, node);
 }
 
 static void __ref zero_pte_populate(pmd_t *pmd, unsigned long addr,
diff --git a/mm/memblock.c b/mm/memblock.c
index 4591f38..86a4b80 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1393,7 +1393,7 @@ phys_addr_t __init memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t ali
  * hold the requested memory.
  *
  * The allocation is performed from memory region limited by
- * memblock.current_limit if @max_addr == %BOOTMEM_ALLOC_ACCESSIBLE.
+ * memblock.current_limit if @max_addr == %MEMBLOCK_ALLOC_ACCESSIBLE.
  *
  * The memory block is aligned on %SMP_CACHE_BYTES if @align == 0.
  *
@@ -1480,7 +1480,7 @@ static void * __init memblock_alloc_internal(
  * @min_addr: the lower bound of the memory region from where the allocation
  *	  is preferred (phys address)
  * @max_addr: the upper bound of the memory region from where the allocation
- *	      is preferred (phys address), or %BOOTMEM_ALLOC_ACCESSIBLE to
+ *	      is preferred (phys address), or %MEMBLOCK_ALLOC_ACCESSIBLE to
  *	      allocate only from memory limited by memblock.current_limit value
  * @nid: nid of the free area to find, %NUMA_NO_NODE for any node
  *
@@ -1518,7 +1518,7 @@ void * __init memblock_alloc_try_nid_raw(
  * @min_addr: the lower bound of the memory region from where the allocation
  *	  is preferred (phys address)
  * @max_addr: the upper bound of the memory region from where the allocation
- *	      is preferred (phys address), or %BOOTMEM_ALLOC_ACCESSIBLE to
+ *	      is preferred (phys address), or %MEMBLOCK_ALLOC_ACCESSIBLE to
  *	      allocate only from memory limited by memblock.current_limit value
  * @nid: nid of the free area to find, %NUMA_NO_NODE for any node
  *
@@ -1553,7 +1553,7 @@ void * __init memblock_alloc_try_nid_nopanic(
  * @min_addr: the lower bound of the memory region from where the allocation
  *	  is preferred (phys address)
  * @max_addr: the upper bound of the memory region from where the allocation
- *	      is preferred (phys address), or %BOOTMEM_ALLOC_ACCESSIBLE to
+ *	      is preferred (phys address), or %MEMBLOCK_ALLOC_ACCESSIBLE to
  *	      allocate only from memory limited by memblock.current_limit value
  * @nid: nid of the free area to find, %NUMA_NO_NODE for any node
  *
diff --git a/mm/page_ext.c b/mm/page_ext.c
index e77c0f0..5323c2a 100644
--- a/mm/page_ext.c
+++ b/mm/page_ext.c
@@ -163,7 +163,7 @@ static int __init alloc_node_page_ext(int nid)
 
 	base = memblock_alloc_try_nid_nopanic(
 			table_size, PAGE_SIZE, __pa(MAX_DMA_ADDRESS),
-			BOOTMEM_ALLOC_ACCESSIBLE, nid);
+			MEMBLOCK_ALLOC_ACCESSIBLE, nid);
 	if (!base)
 		return -ENOMEM;
 	NODE_DATA(nid)->node_page_ext = base;
diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
index 91c2c3d..7408cab 100644
--- a/mm/sparse-vmemmap.c
+++ b/mm/sparse-vmemmap.c
@@ -21,6 +21,7 @@
 #include <linux/mm.h>
 #include <linux/mmzone.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/memremap.h>
 #include <linux/highmem.h>
 #include <linux/slab.h>
@@ -43,7 +44,7 @@ static void * __ref __earlyonly_bootmem_alloc(int node,
 				unsigned long goal)
 {
 	return memblock_alloc_try_nid_raw(size, align, goal,
-					       BOOTMEM_ALLOC_ACCESSIBLE, node);
+					       MEMBLOCK_ALLOC_ACCESSIBLE, node);
 }
 
 void * __meminit vmemmap_alloc_block(unsigned long size, int node)
diff --git a/mm/sparse.c b/mm/sparse.c
index 509828f..0dcc306 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -6,6 +6,7 @@
 #include <linux/slab.h>
 #include <linux/mmzone.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/compiler.h>
 #include <linux/highmem.h>
 #include <linux/export.h>
@@ -393,7 +394,7 @@ struct page __init *sparse_mem_map_populate(unsigned long pnum, int nid,
 
 	map = memblock_alloc_try_nid(size,
 					  PAGE_SIZE, __pa(MAX_DMA_ADDRESS),
-					  BOOTMEM_ALLOC_ACCESSIBLE, nid);
+					  MEMBLOCK_ALLOC_ACCESSIBLE, nid);
 	return map;
 }
 #endif /* !CONFIG_SPARSEMEM_VMEMMAP */
@@ -407,7 +408,7 @@ static void __init sparse_buffer_init(unsigned long size, int nid)
 	sparsemap_buf =
 		memblock_alloc_try_nid_raw(size, PAGE_SIZE,
 						__pa(MAX_DMA_ADDRESS),
-						BOOTMEM_ALLOC_ACCESSIBLE, nid);
+						MEMBLOCK_ALLOC_ACCESSIBLE, nid);
 	sparsemap_buf_end = sparsemap_buf + size;
 }
 
-- 
2.7.4

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Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
---
 Documentation/core-api/boot-time-mm.rst | 71 +++++----------------------------
 1 file changed, 10 insertions(+), 61 deletions(-)

diff --git a/Documentation/core-api/boot-time-mm.rst b/Documentation/core-api/boot-time-mm.rst
index 03cb164..e5ec9f1 100644
--- a/Documentation/core-api/boot-time-mm.rst
+++ b/Documentation/core-api/boot-time-mm.rst
@@ -5,54 +5,23 @@ Boot time memory management
 Early system initialization cannot use "normal" memory management
 simply because it is not set up yet. But there is still need to
 allocate memory for various data structures, for instance for the
-physical page allocator. To address this, a specialized allocator
-called the :ref:`Boot Memory Allocator <bootmem>`, or bootmem, was
-introduced. Several years later PowerPC developers added a "Logical
-Memory Blocks" allocator, which was later adopted by other
-architectures and renamed to :ref:`memblock <memblock>`. There is also
-a compatibility layer called `nobootmem` that translates bootmem
-allocation interfaces to memblock calls.
+physical page allocator.
 
-The selection of the early allocator is done using
-``CONFIG_NO_BOOTMEM`` and ``CONFIG_HAVE_MEMBLOCK`` kernel
-configuration options. These options are enabled or disabled
-statically by the architectures' Kconfig files.
-
-* Architectures that rely only on bootmem select
-  ``CONFIG_NO_BOOTMEM=n && CONFIG_HAVE_MEMBLOCK=n``.
-* The users of memblock with the nobootmem compatibility layer set
-  ``CONFIG_NO_BOOTMEM=y && CONFIG_HAVE_MEMBLOCK=y``.
-* And for those that use both memblock and bootmem the configuration
-  includes ``CONFIG_NO_BOOTMEM=n && CONFIG_HAVE_MEMBLOCK=y``.
-
-Whichever allocator is used, it is the responsibility of the
-architecture specific initialization to set it up in
-:c:func:`setup_arch` and tear it down in :c:func:`mem_init` functions.
+A specialized allocator called ``memblock`` performs the
+boot time memory management. The architecture specific initialization
+must set it up in :c:func:`setup_arch` and tear it down in
+:c:func:`mem_init` functions.
 
 Once the early memory management is available it offers a variety of
 functions and macros for memory allocations. The allocation request
 may be directed to the first (and probably the only) node or to a
 particular node in a NUMA system. There are API variants that panic
-when an allocation fails and those that don't. And more recent and
-advanced memblock even allows controlling its own behaviour.
-
-.. _bootmem:
-
-Bootmem
-=======
-
-(mostly stolen from Mel Gorman's "Understanding the Linux Virtual
-Memory Manager" `book`_)
-
-.. _book: https://www.kernel.org/doc/gorman/
-
-.. kernel-doc:: mm/bootmem.c
-   :doc: bootmem overview
+when an allocation fails and those that don't.
 
-.. _memblock:
+Memblock also offers a variety of APIs that control its own behaviour.
 
-Memblock
-========
+Memblock Overview
+=================
 
 .. kernel-doc:: mm/memblock.c
    :doc: memblock overview
@@ -61,26 +30,6 @@ Memblock
 Functions and structures
 ========================
 
-Common API
-----------
-
-The functions that are described in this section are available
-regardless of what early memory manager is enabled.
-
-.. kernel-doc:: mm/nobootmem.c
-
-Bootmem specific API
---------------------
-
-These interfaces available only with bootmem, i.e when ``CONFIG_NO_BOOTMEM=n``
-
-.. kernel-doc:: include/linux/bootmem.h
-.. kernel-doc:: mm/bootmem.c
-   :nodocs:
-
-Memblock specific API
----------------------
-
 Here is the description of memblock data structures, functions and
 macros. Some of them are actually internal, but since they are
 documented it would be silly to omit them. Besides, reading the
@@ -89,4 +38,4 @@ really happens under the hood.
 
 .. kernel-doc:: include/linux/memblock.h
 .. kernel-doc:: mm/memblock.c
-   :nodocs:
+   :functions:
-- 
2.7.4

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Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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 Catalin Marinas <catalin.marinas@arm.com>, Palmer Dabbelt <palmer@sifive.com>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4366>

Move remaining definitions and declarations from include/linux/bootmem.h
into include/linux/memblock.h and remove the redundant header.

The includes were replaced with the semantic patch below and then
semi-automated removal of duplicated '#include <linux/memblock.h>

@@
@@
- #include <linux/bootmem.h>
+ #include <linux/memblock.h>

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
---
 arch/alpha/kernel/core_cia.c                |   2 +-
 arch/alpha/kernel/core_irongate.c           |   1 -
 arch/alpha/kernel/core_marvel.c             |   2 +-
 arch/alpha/kernel/core_titan.c              |   2 +-
 arch/alpha/kernel/core_tsunami.c            |   2 +-
 arch/alpha/kernel/pci-noop.c                |   2 +-
 arch/alpha/kernel/pci.c                     |   2 +-
 arch/alpha/kernel/pci_iommu.c               |   2 +-
 arch/alpha/kernel/setup.c                   |   1 -
 arch/alpha/kernel/sys_nautilus.c            |   2 +-
 arch/alpha/mm/init.c                        |   2 +-
 arch/alpha/mm/numa.c                        |   1 -
 arch/arc/kernel/unwind.c                    |   2 +-
 arch/arc/mm/highmem.c                       |   2 +-
 arch/arc/mm/init.c                          |   1 -
 arch/arm/kernel/devtree.c                   |   1 -
 arch/arm/kernel/setup.c                     |   1 -
 arch/arm/mach-omap2/omap_hwmod.c            |   2 +-
 arch/arm/mm/dma-mapping.c                   |   1 -
 arch/arm/mm/init.c                          |   1 -
 arch/arm/xen/mm.c                           |   1 -
 arch/arm/xen/p2m.c                          |   2 +-
 arch/arm64/kernel/acpi.c                    |   1 -
 arch/arm64/kernel/acpi_numa.c               |   1 -
 arch/arm64/kernel/setup.c                   |   1 -
 arch/arm64/mm/dma-mapping.c                 |   2 +-
 arch/arm64/mm/init.c                        |   1 -
 arch/arm64/mm/kasan_init.c                  |   1 -
 arch/arm64/mm/numa.c                        |   1 -
 arch/c6x/kernel/setup.c                     |   1 -
 arch/c6x/mm/init.c                          |   2 +-
 arch/h8300/kernel/setup.c                   |   1 -
 arch/h8300/mm/init.c                        |   2 +-
 arch/hexagon/kernel/dma.c                   |   2 +-
 arch/hexagon/kernel/setup.c                 |   2 +-
 arch/hexagon/mm/init.c                      |   1 -
 arch/ia64/kernel/crash.c                    |   2 +-
 arch/ia64/kernel/efi.c                      |   2 +-
 arch/ia64/kernel/ia64_ksyms.c               |   2 +-
 arch/ia64/kernel/iosapic.c                  |   2 +-
 arch/ia64/kernel/mca.c                      |   2 +-
 arch/ia64/kernel/mca_drv.c                  |   2 +-
 arch/ia64/kernel/setup.c                    |   1 -
 arch/ia64/kernel/smpboot.c                  |   2 +-
 arch/ia64/kernel/topology.c                 |   2 +-
 arch/ia64/kernel/unwind.c                   |   2 +-
 arch/ia64/mm/contig.c                       |   1 -
 arch/ia64/mm/discontig.c                    |   1 -
 arch/ia64/mm/init.c                         |   1 -
 arch/ia64/mm/numa.c                         |   2 +-
 arch/ia64/mm/tlb.c                          |   2 +-
 arch/ia64/pci/pci.c                         |   2 +-
 arch/ia64/sn/kernel/bte.c                   |   2 +-
 arch/ia64/sn/kernel/io_common.c             |   2 +-
 arch/ia64/sn/kernel/setup.c                 |   2 +-
 arch/m68k/atari/stram.c                     |   2 +-
 arch/m68k/coldfire/m54xx.c                  |   2 +-
 arch/m68k/kernel/setup_mm.c                 |   1 -
 arch/m68k/kernel/setup_no.c                 |   1 -
 arch/m68k/kernel/uboot.c                    |   2 +-
 arch/m68k/mm/init.c                         |   2 +-
 arch/m68k/mm/mcfmmu.c                       |   1 -
 arch/m68k/mm/motorola.c                     |   1 -
 arch/m68k/mm/sun3mmu.c                      |   2 +-
 arch/m68k/sun3/config.c                     |   2 +-
 arch/m68k/sun3/dvma.c                       |   2 +-
 arch/m68k/sun3/mmu_emu.c                    |   2 +-
 arch/m68k/sun3/sun3dvma.c                   |   2 +-
 arch/m68k/sun3x/dvma.c                      |   2 +-
 arch/microblaze/mm/consistent.c             |   2 +-
 arch/microblaze/mm/init.c                   |   3 +-
 arch/microblaze/pci/pci-common.c            |   2 +-
 arch/mips/ar7/memory.c                      |   2 +-
 arch/mips/ath79/setup.c                     |   2 +-
 arch/mips/bcm63xx/prom.c                    |   2 +-
 arch/mips/bcm63xx/setup.c                   |   2 +-
 arch/mips/bmips/setup.c                     |   2 +-
 arch/mips/cavium-octeon/dma-octeon.c        |   2 +-
 arch/mips/dec/prom/memory.c                 |   2 +-
 arch/mips/emma/common/prom.c                |   2 +-
 arch/mips/fw/arc/memory.c                   |   2 +-
 arch/mips/jazz/jazzdma.c                    |   2 +-
 arch/mips/kernel/crash.c                    |   2 +-
 arch/mips/kernel/crash_dump.c               |   2 +-
 arch/mips/kernel/prom.c                     |   2 +-
 arch/mips/kernel/setup.c                    |   1 -
 arch/mips/kernel/traps.c                    |   1 -
 arch/mips/kernel/vpe.c                      |   2 +-
 arch/mips/kvm/commpage.c                    |   2 +-
 arch/mips/kvm/dyntrans.c                    |   2 +-
 arch/mips/kvm/emulate.c                     |   2 +-
 arch/mips/kvm/interrupt.c                   |   2 +-
 arch/mips/kvm/mips.c                        |   2 +-
 arch/mips/lantiq/prom.c                     |   2 +-
 arch/mips/lasat/prom.c                      |   2 +-
 arch/mips/loongson64/common/init.c          |   2 +-
 arch/mips/loongson64/loongson-3/numa.c      |   1 -
 arch/mips/mm/init.c                         |   2 +-
 arch/mips/mm/pgtable-32.c                   |   2 +-
 arch/mips/mti-malta/malta-memory.c          |   2 +-
 arch/mips/netlogic/xlp/dt.c                 |   2 +-
 arch/mips/pci/pci-legacy.c                  |   2 +-
 arch/mips/pci/pci.c                         |   2 +-
 arch/mips/ralink/of.c                       |   2 +-
 arch/mips/rb532/prom.c                      |   2 +-
 arch/mips/sgi-ip27/ip27-memory.c            |   1 -
 arch/mips/sibyte/common/cfe.c               |   2 +-
 arch/mips/sibyte/swarm/setup.c              |   2 +-
 arch/mips/txx9/rbtx4938/prom.c              |   2 +-
 arch/nds32/kernel/setup.c                   |   3 +-
 arch/nds32/mm/highmem.c                     |   2 +-
 arch/nds32/mm/init.c                        |   3 +-
 arch/nios2/kernel/prom.c                    |   2 +-
 arch/nios2/kernel/setup.c                   |   1 -
 arch/nios2/mm/init.c                        |   2 +-
 arch/openrisc/kernel/setup.c                |   3 +-
 arch/openrisc/mm/init.c                     |   3 +-
 arch/parisc/mm/init.c                       |   1 -
 arch/powerpc/kernel/pci_32.c                |   2 +-
 arch/powerpc/kernel/setup_64.c              |   3 +-
 arch/powerpc/lib/alloc.c                    |   2 +-
 arch/powerpc/mm/hugetlbpage.c               |   1 -
 arch/powerpc/mm/mem.c                       |   3 +-
 arch/powerpc/mm/mmu_context_nohash.c        |   2 +-
 arch/powerpc/mm/numa.c                      |   3 +-
 arch/powerpc/platforms/powermac/nvram.c     |   2 +-
 arch/powerpc/platforms/powernv/pci-ioda.c   |   3 +-
 arch/powerpc/platforms/ps3/setup.c          |   2 +-
 arch/powerpc/sysdev/msi_bitmap.c            |   2 +-
 arch/riscv/mm/init.c                        |   3 +-
 arch/s390/kernel/crash_dump.c               |   3 +-
 arch/s390/kernel/setup.c                    |   1 -
 arch/s390/kernel/smp.c                      |   3 +-
 arch/s390/kernel/topology.c                 |   2 +-
 arch/s390/kernel/vdso.c                     |   2 +-
 arch/s390/mm/extmem.c                       |   2 +-
 arch/s390/mm/init.c                         |   3 +-
 arch/s390/mm/vmem.c                         |   3 +-
 arch/s390/numa/mode_emu.c                   |   1 -
 arch/s390/numa/numa.c                       |   1 -
 arch/s390/numa/toptree.c                    |   2 +-
 arch/sh/mm/init.c                           |   3 +-
 arch/sh/mm/ioremap_fixed.c                  |   2 +-
 arch/sparc/kernel/mdesc.c                   |   2 -
 arch/sparc/kernel/prom_32.c                 |   2 +-
 arch/sparc/kernel/setup_64.c                |   2 +-
 arch/sparc/kernel/smp_64.c                  |   2 +-
 arch/sparc/mm/init_32.c                     |   1 -
 arch/sparc/mm/init_64.c                     |   3 +-
 arch/sparc/mm/srmmu.c                       |   2 +-
 arch/um/drivers/net_kern.c                  |   2 +-
 arch/um/drivers/vector_kern.c               |   2 +-
 arch/um/kernel/initrd.c                     |   2 +-
 arch/um/kernel/mem.c                        |   1 -
 arch/um/kernel/physmem.c                    |   1 -
 arch/unicore32/kernel/hibernate.c           |   2 +-
 arch/unicore32/kernel/setup.c               |   3 +-
 arch/unicore32/mm/init.c                    |   3 +-
 arch/unicore32/mm/mmu.c                     |   1 -
 arch/x86/kernel/acpi/boot.c                 |   2 +-
 arch/x86/kernel/acpi/sleep.c                |   1 -
 arch/x86/kernel/apic/apic.c                 |   2 +-
 arch/x86/kernel/apic/io_apic.c              |   2 +-
 arch/x86/kernel/cpu/common.c                |   2 +-
 arch/x86/kernel/e820.c                      |   3 +-
 arch/x86/kernel/mpparse.c                   |   1 -
 arch/x86/kernel/pci-dma.c                   |   2 +-
 arch/x86/kernel/pci-swiotlb.c               |   2 +-
 arch/x86/kernel/pvclock.c                   |   2 +-
 arch/x86/kernel/setup.c                     |   1 -
 arch/x86/kernel/setup_percpu.c              |   1 -
 arch/x86/kernel/smpboot.c                   |   2 +-
 arch/x86/kernel/tce_64.c                    |   1 -
 arch/x86/mm/amdtopology.c                   |   1 -
 arch/x86/mm/fault.c                         |   2 +-
 arch/x86/mm/highmem_32.c                    |   2 +-
 arch/x86/mm/init.c                          |   1 -
 arch/x86/mm/init_32.c                       |   1 -
 arch/x86/mm/init_64.c                       |   1 -
 arch/x86/mm/ioremap.c                       |   2 +-
 arch/x86/mm/kasan_init_64.c                 |   3 +-
 arch/x86/mm/numa.c                          |   1 -
 arch/x86/mm/numa_32.c                       |   1 -
 arch/x86/mm/numa_64.c                       |   2 +-
 arch/x86/mm/numa_emulation.c                |   1 -
 arch/x86/mm/pageattr-test.c                 |   2 +-
 arch/x86/mm/pageattr.c                      |   2 +-
 arch/x86/mm/pat.c                           |   2 +-
 arch/x86/mm/physaddr.c                      |   2 +-
 arch/x86/pci/i386.c                         |   2 +-
 arch/x86/platform/efi/efi.c                 |   3 +-
 arch/x86/platform/efi/efi_64.c              |   2 +-
 arch/x86/platform/efi/quirks.c              |   1 -
 arch/x86/platform/olpc/olpc_dt.c            |   2 +-
 arch/x86/power/hibernate_32.c               |   2 +-
 arch/x86/xen/enlighten.c                    |   2 +-
 arch/x86/xen/enlighten_pv.c                 |   3 +-
 arch/x86/xen/p2m.c                          |   1 -
 arch/xtensa/kernel/pci.c                    |   2 +-
 arch/xtensa/mm/cache.c                      |   2 +-
 arch/xtensa/mm/init.c                       |   2 +-
 arch/xtensa/mm/kasan_init.c                 |   3 +-
 arch/xtensa/mm/mmu.c                        |   2 +-
 arch/xtensa/platforms/iss/network.c         |   2 +-
 arch/xtensa/platforms/iss/setup.c           |   2 +-
 block/blk-settings.c                        |   2 +-
 block/bounce.c                              |   2 +-
 drivers/acpi/numa.c                         |   1 -
 drivers/acpi/tables.c                       |   3 +-
 drivers/base/platform.c                     |   2 +-
 drivers/clk/ti/clk.c                        |   2 +-
 drivers/firmware/dmi_scan.c                 |   2 +-
 drivers/firmware/efi/apple-properties.c     |   2 +-
 drivers/firmware/iscsi_ibft_find.c          |   2 +-
 drivers/firmware/memmap.c                   |   2 +-
 drivers/iommu/mtk_iommu.c                   |   2 +-
 drivers/iommu/mtk_iommu_v1.c                |   2 +-
 drivers/macintosh/smu.c                     |   3 +-
 drivers/mtd/ar7part.c                       |   2 +-
 drivers/net/arcnet/arc-rimi.c               |   2 +-
 drivers/net/arcnet/com20020-isa.c           |   2 +-
 drivers/net/arcnet/com90io.c                |   2 +-
 drivers/of/fdt.c                            |   1 -
 drivers/of/unittest.c                       |   2 +-
 drivers/s390/char/fs3270.c                  |   2 +-
 drivers/s390/char/tty3270.c                 |   2 +-
 drivers/s390/cio/cmf.c                      |   2 +-
 drivers/s390/virtio/virtio_ccw.c            |   2 +-
 drivers/sfi/sfi_core.c                      |   2 +-
 drivers/tty/serial/cpm_uart/cpm_uart_core.c |   2 +-
 drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c |   2 +-
 drivers/tty/serial/cpm_uart/cpm_uart_cpm2.c |   2 +-
 drivers/usb/early/xhci-dbc.c                |   1 -
 drivers/xen/balloon.c                       |   2 +-
 drivers/xen/events/events_base.c            |   2 +-
 drivers/xen/grant-table.c                   |   2 +-
 drivers/xen/swiotlb-xen.c                   |   1 -
 drivers/xen/xen-selfballoon.c               |   2 +-
 fs/dcache.c                                 |   2 +-
 fs/inode.c                                  |   2 +-
 fs/namespace.c                              |   2 +-
 fs/proc/kcore.c                             |   2 +-
 fs/proc/page.c                              |   2 +-
 fs/proc/vmcore.c                            |   2 +-
 include/linux/bootmem.h                     | 173 ----------------------------
 include/linux/memblock.h                    | 151 +++++++++++++++++++++++-
 init/main.c                                 |   2 +-
 kernel/dma/swiotlb.c                        |   2 +-
 kernel/futex.c                              |   2 +-
 kernel/locking/qspinlock_paravirt.h         |   2 +-
 kernel/pid.c                                |   2 +-
 kernel/power/snapshot.c                     |   2 +-
 kernel/printk/printk.c                      |   1 -
 kernel/profile.c                            |   2 +-
 lib/cpumask.c                               |   2 +-
 mm/hugetlb.c                                |   1 -
 mm/kasan/kasan_init.c                       |   3 +-
 mm/kmemleak.c                               |   2 +-
 mm/memblock.c                               |   1 -
 mm/memory_hotplug.c                         |   1 -
 mm/page_alloc.c                             |   1 -
 mm/page_ext.c                               |   2 +-
 mm/page_idle.c                              |   2 +-
 mm/page_owner.c                             |   2 +-
 mm/percpu.c                                 |   2 +-
 mm/sparse-vmemmap.c                         |   1 -
 mm/sparse.c                                 |   1 -
 net/ipv4/inet_hashtables.c                  |   2 +-
 net/ipv4/tcp.c                              |   2 +-
 net/ipv4/udp.c                              |   2 +-
 net/sctp/protocol.c                         |   2 +-
 net/xfrm/xfrm_hash.c                        |   2 +-
 272 files changed, 351 insertions(+), 474 deletions(-)
 delete mode 100644 include/linux/bootmem.h

diff --git a/arch/alpha/kernel/core_cia.c b/arch/alpha/kernel/core_cia.c
index 026ee95..867e873 100644
--- a/arch/alpha/kernel/core_cia.c
+++ b/arch/alpha/kernel/core_cia.c
@@ -21,7 +21,7 @@
 #include <linux/pci.h>
 #include <linux/sched.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/ptrace.h>
 #include <asm/mce.h>
diff --git a/arch/alpha/kernel/core_irongate.c b/arch/alpha/kernel/core_irongate.c
index 35572be..a9fd133 100644
--- a/arch/alpha/kernel/core_irongate.c
+++ b/arch/alpha/kernel/core_irongate.c
@@ -20,7 +20,6 @@
 #include <linux/sched.h>
 #include <linux/init.h>
 #include <linux/initrd.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 
 #include <asm/ptrace.h>
diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c
index 1f00c94..8a568c4 100644
--- a/arch/alpha/kernel/core_marvel.c
+++ b/arch/alpha/kernel/core_marvel.c
@@ -18,7 +18,7 @@
 #include <linux/mc146818rtc.h>
 #include <linux/rtc.h>
 #include <linux/module.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/ptrace.h>
 #include <asm/smp.h>
diff --git a/arch/alpha/kernel/core_titan.c b/arch/alpha/kernel/core_titan.c
index 132b06b..9755159 100644
--- a/arch/alpha/kernel/core_titan.c
+++ b/arch/alpha/kernel/core_titan.c
@@ -16,7 +16,7 @@
 #include <linux/sched.h>
 #include <linux/init.h>
 #include <linux/vmalloc.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/ptrace.h>
 #include <asm/smp.h>
diff --git a/arch/alpha/kernel/core_tsunami.c b/arch/alpha/kernel/core_tsunami.c
index e7c956e..f334b89 100644
--- a/arch/alpha/kernel/core_tsunami.c
+++ b/arch/alpha/kernel/core_tsunami.c
@@ -17,7 +17,7 @@
 #include <linux/pci.h>
 #include <linux/sched.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/ptrace.h>
 #include <asm/smp.h>
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index 59cbfc2..a9378ee 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -7,7 +7,7 @@
 
 #include <linux/pci.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/gfp.h>
 #include <linux/capability.h>
 #include <linux/mm.h>
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 4cc3eb9..13937e7 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -18,7 +18,7 @@
 #include <linux/init.h>
 #include <linux/ioport.h>
 #include <linux/kernel.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/module.h>
 #include <linux/cache.h>
 #include <linux/slab.h>
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 5d178c7..82cf950 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -7,7 +7,7 @@
 #include <linux/mm.h>
 #include <linux/pci.h>
 #include <linux/gfp.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 #include <linux/scatterlist.h>
 #include <linux/log2.h>
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index 64c06a0..a37fd99 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -29,7 +29,6 @@
 #include <linux/string.h>
 #include <linux/ioport.h>
 #include <linux/platform_device.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/pci.h>
 #include <linux/seq_file.h>
diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
index ff4f54b..cd9a112 100644
--- a/arch/alpha/kernel/sys_nautilus.c
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -32,7 +32,7 @@
 #include <linux/pci.h>
 #include <linux/init.h>
 #include <linux/reboot.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/bitops.h>
 
 #include <asm/ptrace.h>
diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
index 853d153..a42fc5c 100644
--- a/arch/alpha/mm/init.c
+++ b/arch/alpha/mm/init.c
@@ -19,7 +19,7 @@
 #include <linux/mm.h>
 #include <linux/swap.h>
 #include <linux/init.h>
-#include <linux/bootmem.h> /* max_low_pfn */
+#include <linux/memblock.h> /* max_low_pfn */
 #include <linux/vmalloc.h>
 #include <linux/gfp.h>
 
diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c
index 26cd925..74846553 100644
--- a/arch/alpha/mm/numa.c
+++ b/arch/alpha/mm/numa.c
@@ -10,7 +10,6 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/swap.h>
 #include <linux/initrd.h>
diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
index 2a01dd1..d34f69e 100644
--- a/arch/arc/kernel/unwind.c
+++ b/arch/arc/kernel/unwind.c
@@ -15,7 +15,7 @@
 
 #include <linux/sched.h>
 #include <linux/module.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/sort.h>
 #include <linux/slab.h>
 #include <linux/stop_machine.h>
diff --git a/arch/arc/mm/highmem.c b/arch/arc/mm/highmem.c
index f582dc8..48e7001 100644
--- a/arch/arc/mm/highmem.c
+++ b/arch/arc/mm/highmem.c
@@ -7,7 +7,7 @@
  *
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 #include <linux/highmem.h>
 #include <asm/processor.h>
diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index 0f29c65..f8fe566 100644
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -8,7 +8,6 @@
 
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #ifdef CONFIG_BLK_DEV_INITRD
 #include <linux/initrd.h>
diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c
index ecaa68d..6f26838 100644
--- a/arch/arm/kernel/devtree.c
+++ b/arch/arm/kernel/devtree.c
@@ -12,7 +12,6 @@
 #include <linux/export.h>
 #include <linux/errno.h>
 #include <linux/types.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/of.h>
 #include <linux/of_fdt.h>
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 39e6090..840a4ad 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -16,7 +16,6 @@
 #include <linux/utsname.h>
 #include <linux/initrd.h>
 #include <linux/console.h>
-#include <linux/bootmem.h>
 #include <linux/seq_file.h>
 #include <linux/screen_info.h>
 #include <linux/of_platform.h>
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 1f9b34a..cd5732a 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -141,7 +141,7 @@
 #include <linux/cpu.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <linux/platform_data/ti-sysc.h>
 
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 6656647..661fe48 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -9,7 +9,6 @@
  *
  *  DMA uncached mapping support.
  */
-#include <linux/bootmem.h>
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/genalloc.h>
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index d421a10..32e4845 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -11,7 +11,6 @@
 #include <linux/errno.h>
 #include <linux/swap.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
 #include <linux/mman.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/task.h>
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index 785d2a5..cb44aa2 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -1,6 +1,5 @@
 #include <linux/cpu.h>
 #include <linux/dma-mapping.h>
-#include <linux/bootmem.h>
 #include <linux/gfp.h>
 #include <linux/highmem.h>
 #include <linux/export.h>
diff --git a/arch/arm/xen/p2m.c b/arch/arm/xen/p2m.c
index 0641ba5..e70a49f 100644
--- a/arch/arm/xen/p2m.c
+++ b/arch/arm/xen/p2m.c
@@ -1,4 +1,4 @@
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/gfp.h>
 #include <linux/export.h>
 #include <linux/spinlock.h>
diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c
index ed46dc1..44e3c35 100644
--- a/arch/arm64/kernel/acpi.c
+++ b/arch/arm64/kernel/acpi.c
@@ -16,7 +16,6 @@
 #define pr_fmt(fmt) "ACPI: " fmt
 
 #include <linux/acpi.h>
-#include <linux/bootmem.h>
 #include <linux/cpumask.h>
 #include <linux/efi.h>
 #include <linux/efi-bgrt.h>
diff --git a/arch/arm64/kernel/acpi_numa.c b/arch/arm64/kernel/acpi_numa.c
index 4f4f181..eac1d0c 100644
--- a/arch/arm64/kernel/acpi_numa.c
+++ b/arch/arm64/kernel/acpi_numa.c
@@ -18,7 +18,6 @@
 
 #include <linux/acpi.h>
 #include <linux/bitmap.h>
-#include <linux/bootmem.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/memblock.h>
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index cf7a7b7..46d48ea 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -26,7 +26,6 @@
 #include <linux/initrd.h>
 #include <linux/console.h>
 #include <linux/cache.h>
-#include <linux/bootmem.h>
 #include <linux/screen_info.h>
 #include <linux/init.h>
 #include <linux/kexec.h>
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index cdcb73d..1469f96 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -19,7 +19,7 @@
 
 #include <linux/gfp.h>
 #include <linux/acpi.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/cache.h>
 #include <linux/export.h>
 #include <linux/slab.h>
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index ae21849..f44ce25 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -22,7 +22,6 @@
 #include <linux/errno.h>
 #include <linux/swap.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
 #include <linux/cache.h>
 #include <linux/mman.h>
 #include <linux/nodemask.h>
diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index 2391560..3b868be 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -11,7 +11,6 @@
  */
 
 #define pr_fmt(fmt) "kasan: " fmt
-#include <linux/bootmem.h>
 #include <linux/kasan.h>
 #include <linux/kernel.h>
 #include <linux/sched/task.h>
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 8f2e0e8..db9b512f 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -20,7 +20,6 @@
 #define pr_fmt(fmt) "NUMA: " fmt
 
 #include <linux/acpi.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/module.h>
 #include <linux/of.h>
diff --git a/arch/c6x/kernel/setup.c b/arch/c6x/kernel/setup.c
index cc74cb9..811f1c6 100644
--- a/arch/c6x/kernel/setup.c
+++ b/arch/c6x/kernel/setup.c
@@ -11,7 +11,6 @@
 #include <linux/dma-mapping.h>
 #include <linux/memblock.h>
 #include <linux/seq_file.h>
-#include <linux/bootmem.h>
 #include <linux/clkdev.h>
 #include <linux/initrd.h>
 #include <linux/kernel.h>
diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c
index 3383df8..af5ada0 100644
--- a/arch/c6x/mm/init.c
+++ b/arch/c6x/mm/init.c
@@ -11,7 +11,7 @@
 #include <linux/mm.h>
 #include <linux/swap.h>
 #include <linux/module.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #ifdef CONFIG_BLK_DEV_RAM
 #include <linux/blkdev.h>
 #endif
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
index 34e2df5..b32bfa1f 100644
--- a/arch/h8300/kernel/setup.c
+++ b/arch/h8300/kernel/setup.c
@@ -18,7 +18,6 @@
 #include <linux/console.h>
 #include <linux/errno.h>
 #include <linux/string.h>
-#include <linux/bootmem.h>
 #include <linux/seq_file.h>
 #include <linux/init.h>
 #include <linux/of.h>
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
index f2bf448..6519252 100644
--- a/arch/h8300/mm/init.c
+++ b/arch/h8300/mm/init.c
@@ -30,7 +30,7 @@
 #include <linux/init.h>
 #include <linux/highmem.h>
 #include <linux/pagemap.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/gfp.h>
 
 #include <asm/setup.h>
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index ffc4ae8..45a1b42 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -19,7 +19,7 @@
  */
 
 #include <linux/dma-noncoherent.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/genalloc.h>
 #include <linux/module.h>
 #include <asm/page.h>
diff --git a/arch/hexagon/kernel/setup.c b/arch/hexagon/kernel/setup.c
index dc8c7e7..b3c3e04 100644
--- a/arch/hexagon/kernel/setup.c
+++ b/arch/hexagon/kernel/setup.c
@@ -20,7 +20,7 @@
 
 #include <linux/init.h>
 #include <linux/delay.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mmzone.h>
 #include <linux/mm.h>
 #include <linux/seq_file.h>
diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c
index 88643fa..1719ede 100644
--- a/arch/hexagon/mm/init.c
+++ b/arch/hexagon/mm/init.c
@@ -20,7 +20,6 @@
 
 #include <linux/init.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <asm/atomic.h>
 #include <linux/highmem.h>
diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c
index 39f4433..bec762a9b 100644
--- a/arch/ia64/kernel/crash.c
+++ b/arch/ia64/kernel/crash.c
@@ -12,7 +12,7 @@
 #include <linux/smp.h>
 #include <linux/delay.h>
 #include <linux/crash_dump.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/kexec.h>
 #include <linux/elfcore.h>
 #include <linux/sysctl.h>
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index 9c09bf3..ed47d70 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -23,7 +23,7 @@
  *	Skip non-WB memory and ignore empty memory ranges.
  */
 #include <linux/module.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/crash_dump.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c
index 6b51c88..b49fe6f 100644
--- a/arch/ia64/kernel/ia64_ksyms.c
+++ b/arch/ia64/kernel/ia64_ksyms.c
@@ -6,7 +6,7 @@
 #ifdef CONFIG_VIRTUAL_MEM_MAP
 #include <linux/compiler.h>
 #include <linux/export.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 EXPORT_SYMBOL(min_low_pfn);	/* defined by bootmem.c, but not exported by generic code */
 EXPORT_SYMBOL(max_low_pfn);	/* defined by bootmem.c, but not exported by generic code */
 #endif
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index 550243a..fe6e494 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -90,7 +90,7 @@
 #include <linux/slab.h>
 #include <linux/smp.h>
 #include <linux/string.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/delay.h>
 #include <asm/hw_irq.h>
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 7120976..9a6603f 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -77,7 +77,7 @@
 #include <linux/sched/task.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/acpi.h>
 #include <linux/timer.h>
 #include <linux/module.h>
diff --git a/arch/ia64/kernel/mca_drv.c b/arch/ia64/kernel/mca_drv.c
index dfe40cb..45f956a 100644
--- a/arch/ia64/kernel/mca_drv.c
+++ b/arch/ia64/kernel/mca_drv.c
@@ -14,7 +14,7 @@
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/kallsyms.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/acpi.h>
 #include <linux/timer.h>
 #include <linux/module.h>
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 0e6c2d9..583a374 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -27,7 +27,6 @@
 #include <linux/init.h>
 
 #include <linux/acpi.h>
-#include <linux/bootmem.h>
 #include <linux/console.h>
 #include <linux/delay.h>
 #include <linux/cpu.h>
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 74fe317..51ec944 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -24,7 +24,7 @@
 
 #include <linux/module.h>
 #include <linux/acpi.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/cpu.h>
 #include <linux/delay.h>
 #include <linux/init.h>
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index 9b820f7..e311ee13 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -19,7 +19,7 @@
 #include <linux/node.h>
 #include <linux/slab.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/nodemask.h>
 #include <linux/notifier.h>
 #include <linux/export.h>
diff --git a/arch/ia64/kernel/unwind.c b/arch/ia64/kernel/unwind.c
index e04efa0..7601fe0 100644
--- a/arch/ia64/kernel/unwind.c
+++ b/arch/ia64/kernel/unwind.c
@@ -28,7 +28,7 @@
  *	  acquired, then the read-write lock must be acquired first.
  */
 #include <linux/module.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/elf.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index 9e5c23a..6e44723 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -14,7 +14,6 @@
  * Routines used by ia64 machines with contiguous (or virtually contiguous)
  * memory.
  */
-#include <linux/bootmem.h>
 #include <linux/efi.h>
 #include <linux/memblock.h>
 #include <linux/mm.h>
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 70609f8..8a96578 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -19,7 +19,6 @@
 #include <linux/mm.h>
 #include <linux/nmi.h>
 #include <linux/swap.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/acpi.h>
 #include <linux/efi.h>
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 43ea4a4..d5e12ff 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -8,7 +8,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 
-#include <linux/bootmem.h>
 #include <linux/efi.h>
 #include <linux/elf.h>
 #include <linux/memblock.h>
diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c
index aa19b7a..3861d6e 100644
--- a/arch/ia64/mm/numa.c
+++ b/arch/ia64/mm/numa.c
@@ -15,7 +15,7 @@
 #include <linux/mm.h>
 #include <linux/node.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/module.h>
 #include <asm/mmzone.h>
 #include <asm/numa.h>
diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
index 5554863..ab545da 100644
--- a/arch/ia64/mm/tlb.c
+++ b/arch/ia64/mm/tlb.c
@@ -21,7 +21,7 @@
 #include <linux/sched.h>
 #include <linux/smp.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/slab.h>
 
 #include <asm/delay.h>
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 7ccc64d..508a47a 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -20,7 +20,7 @@
 #include <linux/ioport.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 
 #include <asm/machvec.h>
diff --git a/arch/ia64/sn/kernel/bte.c b/arch/ia64/sn/kernel/bte.c
index 9146192..9900e6d 100644
--- a/arch/ia64/sn/kernel/bte.c
+++ b/arch/ia64/sn/kernel/bte.c
@@ -16,7 +16,7 @@
 #include <asm/nodedata.h>
 #include <asm/delay.h>
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/string.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c
index 8b05d55..98f5522 100644
--- a/arch/ia64/sn/kernel/io_common.c
+++ b/arch/ia64/sn/kernel/io_common.c
@@ -6,7 +6,7 @@
  * Copyright (C) 2006 Silicon Graphics, Inc. All rights reserved.
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 #include <linux/slab.h>
 #include <asm/sn/types.h>
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index ab2564f..71ad6b0 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -20,7 +20,7 @@
 #include <linux/mm.h>
 #include <linux/serial.h>
 #include <linux/irq.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mmzone.h>
 #include <linux/interrupt.h>
 #include <linux/acpi.h>
diff --git a/arch/m68k/atari/stram.c b/arch/m68k/atari/stram.c
index 1089d67..6ffc204 100644
--- a/arch/m68k/atari/stram.c
+++ b/arch/m68k/atari/stram.c
@@ -17,7 +17,7 @@
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/pagemap.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mount.h>
 #include <linux/blkdev.h>
 #include <linux/module.h>
diff --git a/arch/m68k/coldfire/m54xx.c b/arch/m68k/coldfire/m54xx.c
index adad03c..360c723 100644
--- a/arch/m68k/coldfire/m54xx.c
+++ b/arch/m68k/coldfire/m54xx.c
@@ -16,7 +16,7 @@
 #include <linux/io.h>
 #include <linux/mm.h>
 #include <linux/clk.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <asm/pgalloc.h>
 #include <asm/machdep.h>
 #include <asm/coldfire.h>
diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c
index 5d3596c..a1a3eae 100644
--- a/arch/m68k/kernel/setup_mm.c
+++ b/arch/m68k/kernel/setup_mm.c
@@ -20,7 +20,6 @@
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c
index cfd5475..3c5def1 100644
--- a/arch/m68k/kernel/setup_no.c
+++ b/arch/m68k/kernel/setup_no.c
@@ -27,7 +27,6 @@
 #include <linux/console.h>
 #include <linux/errno.h>
 #include <linux/string.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/seq_file.h>
 #include <linux/init.h>
diff --git a/arch/m68k/kernel/uboot.c b/arch/m68k/kernel/uboot.c
index b29c3b2..db90354 100644
--- a/arch/m68k/kernel/uboot.c
+++ b/arch/m68k/kernel/uboot.c
@@ -16,7 +16,7 @@
 #include <linux/console.h>
 #include <linux/errno.h>
 #include <linux/string.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/seq_file.h>
 #include <linux/init.h>
 #include <linux/initrd.h>
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
index ae49ae4..933c33e 100644
--- a/arch/m68k/mm/init.c
+++ b/arch/m68k/mm/init.c
@@ -17,7 +17,7 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/gfp.h>
 
 #include <asm/setup.h>
diff --git a/arch/m68k/mm/mcfmmu.c b/arch/m68k/mm/mcfmmu.c
index 38a1d92..0de4999 100644
--- a/arch/m68k/mm/mcfmmu.c
+++ b/arch/m68k/mm/mcfmmu.c
@@ -13,7 +13,6 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/string.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 
 #include <asm/setup.h>
diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c
index 2113eec..7497cf3 100644
--- a/arch/m68k/mm/motorola.c
+++ b/arch/m68k/mm/motorola.c
@@ -18,7 +18,6 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/gfp.h>
 
diff --git a/arch/m68k/mm/sun3mmu.c b/arch/m68k/mm/sun3mmu.c
index 19c05ab..f736db4 100644
--- a/arch/m68k/mm/sun3mmu.c
+++ b/arch/m68k/mm/sun3mmu.c
@@ -16,7 +16,7 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/setup.h>
 #include <linux/uaccess.h>
diff --git a/arch/m68k/sun3/config.c b/arch/m68k/sun3/config.c
index 79a2bb8..542c440 100644
--- a/arch/m68k/sun3/config.c
+++ b/arch/m68k/sun3/config.c
@@ -15,7 +15,7 @@
 #include <linux/tty.h>
 #include <linux/console.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/platform_device.h>
 
 #include <asm/oplib.h>
diff --git a/arch/m68k/sun3/dvma.c b/arch/m68k/sun3/dvma.c
index 5f92c72..a2c1c93 100644
--- a/arch/m68k/sun3/dvma.c
+++ b/arch/m68k/sun3/dvma.c
@@ -11,7 +11,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/list.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
diff --git a/arch/m68k/sun3/mmu_emu.c b/arch/m68k/sun3/mmu_emu.c
index d30da12..582a128 100644
--- a/arch/m68k/sun3/mmu_emu.c
+++ b/arch/m68k/sun3/mmu_emu.c
@@ -13,7 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/ptrace.h>
 #include <linux/delay.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/bitops.h>
 #include <linux/module.h>
 #include <linux/sched/mm.h>
diff --git a/arch/m68k/sun3/sun3dvma.c b/arch/m68k/sun3/sun3dvma.c
index 72d9458..8be8b75 100644
--- a/arch/m68k/sun3/sun3dvma.c
+++ b/arch/m68k/sun3/sun3dvma.c
@@ -7,7 +7,7 @@
  * Contains common routines for sun3/sun3x DVMA management.
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
diff --git a/arch/m68k/sun3x/dvma.c b/arch/m68k/sun3x/dvma.c
index b2acbc8..89e630e 100644
--- a/arch/m68k/sun3x/dvma.c
+++ b/arch/m68k/sun3x/dvma.c
@@ -15,7 +15,7 @@
 #include <linux/init.h>
 #include <linux/bitops.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/vmalloc.h>
 
 #include <asm/sun3x.h>
diff --git a/arch/microblaze/mm/consistent.c b/arch/microblaze/mm/consistent.c
index c9a278a..b9d90ab 100644
--- a/arch/microblaze/mm/consistent.c
+++ b/arch/microblaze/mm/consistent.c
@@ -28,7 +28,7 @@
 #include <linux/vmalloc.h>
 #include <linux/init.h>
 #include <linux/delay.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/highmem.h>
 #include <linux/pci.h>
 #include <linux/interrupt.h>
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 9989740..8c14988 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -7,10 +7,9 @@
  * for more details.
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
-#include <linux/memblock.h>
 #include <linux/mm.h> /* mem_init */
 #include <linux/initrd.h>
 #include <linux/pagemap.h>
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 2ffd171..6b89a66 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -20,7 +20,7 @@
 #include <linux/pci.h>
 #include <linux/string.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <linux/shmem_fs.h>
 #include <linux/list.h>
diff --git a/arch/mips/ar7/memory.c b/arch/mips/ar7/memory.c
index 0332f05..80390a9 100644
--- a/arch/mips/ar7/memory.c
+++ b/arch/mips/ar7/memory.c
@@ -16,7 +16,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/pfn.h>
diff --git a/arch/mips/ath79/setup.c b/arch/mips/ath79/setup.c
index 4c7a93f..9728abc 100644
--- a/arch/mips/ath79/setup.c
+++ b/arch/mips/ath79/setup.c
@@ -14,7 +14,7 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/clk-provider.h>
diff --git a/arch/mips/bcm63xx/prom.c b/arch/mips/bcm63xx/prom.c
index 7019e29..77a836e 100644
--- a/arch/mips/bcm63xx/prom.c
+++ b/arch/mips/bcm63xx/prom.c
@@ -7,7 +7,7 @@
  */
 
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/smp.h>
 #include <asm/bootinfo.h>
 #include <asm/bmips.h>
diff --git a/arch/mips/bcm63xx/setup.c b/arch/mips/bcm63xx/setup.c
index 2be9caa..e28ee9a 100644
--- a/arch/mips/bcm63xx/setup.c
+++ b/arch/mips/bcm63xx/setup.c
@@ -9,7 +9,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/ioport.h>
 #include <linux/pm.h>
 #include <asm/bootinfo.h>
diff --git a/arch/mips/bmips/setup.c b/arch/mips/bmips/setup.c
index 231fc5c..301ccb8 100644
--- a/arch/mips/bmips/setup.c
+++ b/arch/mips/bmips/setup.c
@@ -9,7 +9,7 @@
 
 #include <linux/init.h>
 #include <linux/bitops.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/clk-provider.h>
 #include <linux/ioport.h>
 #include <linux/kernel.h>
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index c44c1a6..e8eb60e 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -11,7 +11,7 @@
  * Copyright (C) 2010 Cavium Networks, Inc.
  */
 #include <linux/dma-direct.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/swiotlb.h>
 #include <linux/types.h>
 #include <linux/init.h>
diff --git a/arch/mips/dec/prom/memory.c b/arch/mips/dec/prom/memory.c
index a2acc64..5073d2e 100644
--- a/arch/mips/dec/prom/memory.c
+++ b/arch/mips/dec/prom/memory.c
@@ -8,7 +8,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/types.h>
 
 #include <asm/addrspace.h>
diff --git a/arch/mips/emma/common/prom.c b/arch/mips/emma/common/prom.c
index cae4225..675337b 100644
--- a/arch/mips/emma/common/prom.c
+++ b/arch/mips/emma/common/prom.c
@@ -22,7 +22,7 @@
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/addrspace.h>
 #include <asm/bootinfo.h>
diff --git a/arch/mips/fw/arc/memory.c b/arch/mips/fw/arc/memory.c
index dd9496f..429b7f8 100644
--- a/arch/mips/fw/arc/memory.c
+++ b/arch/mips/fw/arc/memory.c
@@ -17,7 +17,7 @@
 #include <linux/types.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/swap.h>
 
 #include <asm/sgialib.h>
diff --git a/arch/mips/jazz/jazzdma.c b/arch/mips/jazz/jazzdma.c
index d31bc2f..c07f097 100644
--- a/arch/mips/jazz/jazzdma.c
+++ b/arch/mips/jazz/jazzdma.c
@@ -13,7 +13,7 @@
 #include <linux/export.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/spinlock.h>
 #include <linux/gfp.h>
 #include <linux/dma-direct.h>
diff --git a/arch/mips/kernel/crash.c b/arch/mips/kernel/crash.c
index d455363..19352ae 100644
--- a/arch/mips/kernel/crash.c
+++ b/arch/mips/kernel/crash.c
@@ -3,7 +3,7 @@
 #include <linux/smp.h>
 #include <linux/reboot.h>
 #include <linux/kexec.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/crash_dump.h>
 #include <linux/delay.h>
 #include <linux/irq.h>
diff --git a/arch/mips/kernel/crash_dump.c b/arch/mips/kernel/crash_dump.c
index a8657d2..01b2bd9 100644
--- a/arch/mips/kernel/crash_dump.c
+++ b/arch/mips/kernel/crash_dump.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/highmem.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/crash_dump.h>
 #include <linux/uaccess.h>
 #include <linux/slab.h>
diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
index 89950b7..93b8e0b 100644
--- a/arch/mips/kernel/prom.c
+++ b/arch/mips/kernel/prom.c
@@ -12,7 +12,7 @@
 #include <linux/export.h>
 #include <linux/errno.h>
 #include <linux/types.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/debugfs.h>
 #include <linux/of.h>
 #include <linux/of_fdt.h>
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 86c9eda..4efa8af 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -15,7 +15,6 @@
 #include <linux/export.h>
 #include <linux/screen_info.h>
 #include <linux/memblock.h>
-#include <linux/bootmem.h>
 #include <linux/initrd.h>
 #include <linux/root_dev.h>
 #include <linux/highmem.h>
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 623dc18..0f852e1 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -28,7 +28,6 @@
 #include <linux/smp.h>
 #include <linux/spinlock.h>
 #include <linux/kallsyms.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/interrupt.h>
 #include <linux/ptrace.h>
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 0bef238..6176b9a 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -26,7 +26,7 @@
 #include <linux/moduleloader.h>
 #include <linux/interrupt.h>
 #include <linux/poll.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <asm/mipsregs.h>
 #include <asm/mipsmtregs.h>
 #include <asm/cacheflush.h>
diff --git a/arch/mips/kvm/commpage.c b/arch/mips/kvm/commpage.c
index f436299..5812e61 100644
--- a/arch/mips/kvm/commpage.c
+++ b/arch/mips/kvm/commpage.c
@@ -14,7 +14,7 @@
 #include <linux/err.h>
 #include <linux/vmalloc.h>
 #include <linux/fs.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <asm/page.h>
 #include <asm/cacheflush.h>
 #include <asm/mmu_context.h>
diff --git a/arch/mips/kvm/dyntrans.c b/arch/mips/kvm/dyntrans.c
index f8e7725..d77b61b 100644
--- a/arch/mips/kvm/dyntrans.c
+++ b/arch/mips/kvm/dyntrans.c
@@ -16,7 +16,7 @@
 #include <linux/uaccess.h>
 #include <linux/vmalloc.h>
 #include <linux/fs.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <asm/cacheflush.h>
 
 #include "commpage.h"
diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c
index 4144bfa..ec9ed23 100644
--- a/arch/mips/kvm/emulate.c
+++ b/arch/mips/kvm/emulate.c
@@ -15,7 +15,7 @@
 #include <linux/kvm_host.h>
 #include <linux/vmalloc.h>
 #include <linux/fs.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/random.h>
 #include <asm/page.h>
 #include <asm/cacheflush.h>
diff --git a/arch/mips/kvm/interrupt.c b/arch/mips/kvm/interrupt.c
index aa0a1a0..7257e8b6 100644
--- a/arch/mips/kvm/interrupt.c
+++ b/arch/mips/kvm/interrupt.c
@@ -13,7 +13,7 @@
 #include <linux/err.h>
 #include <linux/vmalloc.h>
 #include <linux/fs.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <asm/page.h>
 #include <asm/cacheflush.h>
 
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index f7ea8e2..1fcc4d1 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -18,7 +18,7 @@
 #include <linux/vmalloc.h>
 #include <linux/sched/signal.h>
 #include <linux/fs.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/fpu.h>
 #include <asm/page.h>
diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c
index d984bd5..14d4c5e 100644
--- a/arch/mips/lantiq/prom.c
+++ b/arch/mips/lantiq/prom.c
@@ -8,7 +8,7 @@
 
 #include <linux/export.h>
 #include <linux/clk.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/of_fdt.h>
 
 #include <asm/bootinfo.h>
diff --git a/arch/mips/lasat/prom.c b/arch/mips/lasat/prom.c
index 37b8fc5..5ce1407 100644
--- a/arch/mips/lasat/prom.c
+++ b/arch/mips/lasat/prom.c
@@ -8,7 +8,7 @@
 #include <linux/ctype.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/ioport.h>
 #include <asm/bootinfo.h>
 #include <asm/lasat/lasat.h>
diff --git a/arch/mips/loongson64/common/init.c b/arch/mips/loongson64/common/init.c
index 6ef1712..c073fbc 100644
--- a/arch/mips/loongson64/common/init.c
+++ b/arch/mips/loongson64/common/init.c
@@ -8,7 +8,7 @@
  * option) any later version.
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <asm/bootinfo.h>
 #include <asm/traps.h>
 #include <asm/smp-ops.h>
diff --git a/arch/mips/loongson64/loongson-3/numa.c b/arch/mips/loongson64/loongson-3/numa.c
index 703ad45..6227618 100644
--- a/arch/mips/loongson64/loongson-3/numa.c
+++ b/arch/mips/loongson64/loongson-3/numa.c
@@ -18,7 +18,6 @@
 #include <linux/nodemask.h>
 #include <linux/swap.h>
 #include <linux/memblock.h>
-#include <linux/bootmem.h>
 #include <linux/pfn.h>
 #include <linux/highmem.h>
 #include <asm/page.h>
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 54c36be..1e3df58 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -22,7 +22,7 @@
 #include <linux/ptrace.h>
 #include <linux/mman.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/highmem.h>
 #include <linux/swap.h>
 #include <linux/proc_fs.h>
diff --git a/arch/mips/mm/pgtable-32.c b/arch/mips/mm/pgtable-32.c
index b19a3c5..e2a33ad 100644
--- a/arch/mips/mm/pgtable-32.c
+++ b/arch/mips/mm/pgtable-32.c
@@ -7,7 +7,7 @@
  */
 #include <linux/init.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/highmem.h>
 #include <asm/fixmap.h>
 #include <asm/pgtable.h>
diff --git a/arch/mips/mti-malta/malta-memory.c b/arch/mips/mti-malta/malta-memory.c
index a475567..868921a 100644
--- a/arch/mips/mti-malta/malta-memory.c
+++ b/arch/mips/mti-malta/malta-memory.c
@@ -12,7 +12,7 @@
  *          Steven J. Hill <sjhill@mips.com>
  */
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/string.h>
 
 #include <asm/bootinfo.h>
diff --git a/arch/mips/netlogic/xlp/dt.c b/arch/mips/netlogic/xlp/dt.c
index b5ba83f..c856f2a 100644
--- a/arch/mips/netlogic/xlp/dt.c
+++ b/arch/mips/netlogic/xlp/dt.c
@@ -33,7 +33,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <linux/of_fdt.h>
 #include <linux/of_platform.h>
diff --git a/arch/mips/pci/pci-legacy.c b/arch/mips/pci/pci-legacy.c
index f1e92bf..efc4f78a 100644
--- a/arch/mips/pci/pci-legacy.c
+++ b/arch/mips/pci/pci-legacy.c
@@ -11,7 +11,7 @@
 #include <linux/bug.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 #include <linux/init.h>
 #include <linux/types.h>
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index c2e94cf..e68b44b 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -11,7 +11,7 @@
 #include <linux/bug.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 #include <linux/init.h>
 #include <linux/types.h>
diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c
index 1ada849..d544e7b 100644
--- a/arch/mips/ralink/of.c
+++ b/arch/mips/ralink/of.c
@@ -14,7 +14,7 @@
 #include <linux/sizes.h>
 #include <linux/of_fdt.h>
 #include <linux/kernel.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/of_platform.h>
 #include <linux/of_address.h>
 
diff --git a/arch/mips/rb532/prom.c b/arch/mips/rb532/prom.c
index 6484e4a..361a690 100644
--- a/arch/mips/rb532/prom.c
+++ b/arch/mips/rb532/prom.c
@@ -29,7 +29,7 @@
 #include <linux/export.h>
 #include <linux/string.h>
 #include <linux/console.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/ioport.h>
 #include <linux/blkdev.h>
 
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c
index cb1f1a6..d8b8444 100644
--- a/arch/mips/sgi-ip27/ip27-memory.c
+++ b/arch/mips/sgi-ip27/ip27-memory.c
@@ -18,7 +18,6 @@
 #include <linux/export.h>
 #include <linux/nodemask.h>
 #include <linux/swap.h>
-#include <linux/bootmem.h>
 #include <linux/pfn.h>
 #include <linux/highmem.h>
 #include <asm/page.h>
diff --git a/arch/mips/sibyte/common/cfe.c b/arch/mips/sibyte/common/cfe.c
index 092fb2a..12a780f 100644
--- a/arch/mips/sibyte/common/cfe.c
+++ b/arch/mips/sibyte/common/cfe.c
@@ -21,7 +21,7 @@
 #include <linux/linkage.h>
 #include <linux/mm.h>
 #include <linux/blkdev.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/pm.h>
 #include <linux/smp.h>
 
diff --git a/arch/mips/sibyte/swarm/setup.c b/arch/mips/sibyte/swarm/setup.c
index 152ca71..3b034b7 100644
--- a/arch/mips/sibyte/swarm/setup.c
+++ b/arch/mips/sibyte/swarm/setup.c
@@ -23,7 +23,7 @@
 
 #include <linux/spinlock.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/blkdev.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
diff --git a/arch/mips/txx9/rbtx4938/prom.c b/arch/mips/txx9/rbtx4938/prom.c
index bcb4692..2b36a2e 100644
--- a/arch/mips/txx9/rbtx4938/prom.c
+++ b/arch/mips/txx9/rbtx4938/prom.c
@@ -11,7 +11,7 @@
  */
 
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <asm/bootinfo.h>
 #include <asm/txx9/generic.h>
 #include <asm/txx9/rbtx4938.h>
diff --git a/arch/nds32/kernel/setup.c b/arch/nds32/kernel/setup.c
index 63a1a5e..eacc790 100644
--- a/arch/nds32/kernel/setup.c
+++ b/arch/nds32/kernel/setup.c
@@ -2,9 +2,8 @@
 // Copyright (C) 2005-2017 Andes Technology Corporation
 
 #include <linux/cpu.h>
-#include <linux/bootmem.h>
-#include <linux/seq_file.h>
 #include <linux/memblock.h>
+#include <linux/seq_file.h>
 #include <linux/console.h>
 #include <linux/screen_info.h>
 #include <linux/delay.h>
diff --git a/arch/nds32/mm/highmem.c b/arch/nds32/mm/highmem.c
index e17cb8a..022779a 100644
--- a/arch/nds32/mm/highmem.c
+++ b/arch/nds32/mm/highmem.c
@@ -6,7 +6,7 @@
 #include <linux/sched.h>
 #include <linux/smp.h>
 #include <linux/interrupt.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <asm/fixmap.h>
 #include <asm/tlbflush.h>
 
diff --git a/arch/nds32/mm/init.c b/arch/nds32/mm/init.c
index 66d3e9c..131104b 100644
--- a/arch/nds32/mm/init.c
+++ b/arch/nds32/mm/init.c
@@ -7,12 +7,11 @@
 #include <linux/errno.h>
 #include <linux/swap.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mman.h>
 #include <linux/nodemask.h>
 #include <linux/initrd.h>
 #include <linux/highmem.h>
-#include <linux/memblock.h>
 
 #include <asm/sections.h>
 #include <asm/setup.h>
diff --git a/arch/nios2/kernel/prom.c b/arch/nios2/kernel/prom.c
index a6d4f75..232a36b 100644
--- a/arch/nios2/kernel/prom.c
+++ b/arch/nios2/kernel/prom.c
@@ -25,7 +25,7 @@
 
 #include <linux/init.h>
 #include <linux/types.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/of.h>
 #include <linux/of_fdt.h>
 #include <linux/io.h>
diff --git a/arch/nios2/kernel/setup.c b/arch/nios2/kernel/setup.c
index 2d0011d..6bbd4ae 100644
--- a/arch/nios2/kernel/setup.c
+++ b/arch/nios2/kernel/setup.c
@@ -16,7 +16,6 @@
 #include <linux/sched.h>
 #include <linux/sched/task.h>
 #include <linux/console.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/initrd.h>
 #include <linux/of_fdt.h>
diff --git a/arch/nios2/mm/init.c b/arch/nios2/mm/init.c
index 1292350..16cea57 100644
--- a/arch/nios2/mm/init.c
+++ b/arch/nios2/mm/init.c
@@ -23,7 +23,7 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/pagemap.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/slab.h>
 #include <linux/binfmts.h>
 
diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index 9d28ab1..e7eb688 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -30,13 +30,12 @@
 #include <linux/delay.h>
 #include <linux/console.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/seq_file.h>
 #include <linux/serial.h>
 #include <linux/initrd.h>
 #include <linux/of_fdt.h>
 #include <linux/of.h>
-#include <linux/memblock.h>
 #include <linux/device.h>
 
 #include <asm/sections.h>
diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index 91a6a9a..d157310 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -26,12 +26,11 @@
 #include <linux/mm.h>
 #include <linux/swap.h>
 #include <linux/smp.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/init.h>
 #include <linux/delay.h>
 #include <linux/blkdev.h>	/* for initrd_* */
 #include <linux/pagemap.h>
-#include <linux/memblock.h>
 
 #include <asm/segment.h>
 #include <asm/pgalloc.h>
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index bc368e9..2647120 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -14,7 +14,6 @@
 
 #include <linux/module.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/gfp.h>
 #include <linux/delay.h>
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 2fb4781..d63be12 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -10,7 +10,7 @@
 #include <linux/capability.h>
 #include <linux/sched.h>
 #include <linux/errno.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/syscalls.h>
 #include <linux/irq.h>
 #include <linux/list.h>
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index b3e70cc..791c969 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -29,10 +29,9 @@
 #include <linux/unistd.h>
 #include <linux/serial.h>
 #include <linux/serial_8250.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/pci.h>
 #include <linux/lockdep.h>
-#include <linux/memblock.h>
 #include <linux/memory.h>
 #include <linux/nmi.h>
 
diff --git a/arch/powerpc/lib/alloc.c b/arch/powerpc/lib/alloc.c
index bf87d6e..5b61704 100644
--- a/arch/powerpc/lib/alloc.c
+++ b/arch/powerpc/lib/alloc.c
@@ -2,7 +2,7 @@
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/slab.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/string.h>
 #include <asm/setup.h>
 
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index e87f9ef9..50d1fb4 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -15,7 +15,6 @@
 #include <linux/export.h>
 #include <linux/of_fdt.h>
 #include <linux/memblock.h>
-#include <linux/bootmem.h>
 #include <linux/moduleparam.h>
 #include <linux/swap.h>
 #include <linux/swapops.h>
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index c141134..578cbb2 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -27,12 +27,11 @@
 #include <linux/mm.h>
 #include <linux/stddef.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/highmem.h>
 #include <linux/initrd.h>
 #include <linux/pagemap.h>
 #include <linux/suspend.h>
-#include <linux/memblock.h>
 #include <linux/hugetlb.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index 954f198..67b9d7b 100644
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -44,7 +44,7 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/spinlock.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/notifier.h>
 #include <linux/cpu.h>
 #include <linux/slab.h>
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 5fc0587..be1dc664 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -11,7 +11,7 @@
 #define pr_fmt(fmt) "numa: " fmt
 
 #include <linux/threads.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/mmzone.h>
@@ -19,7 +19,6 @@
 #include <linux/nodemask.h>
 #include <linux/cpu.h>
 #include <linux/notifier.h>
-#include <linux/memblock.h>
 #include <linux/of.h>
 #include <linux/pfn.h>
 #include <linux/cpuset.h>
diff --git a/arch/powerpc/platforms/powermac/nvram.c b/arch/powerpc/platforms/powermac/nvram.c
index f45b369..f3391be 100644
--- a/arch/powerpc/platforms/powermac/nvram.c
+++ b/arch/powerpc/platforms/powermac/nvram.c
@@ -18,7 +18,7 @@
 #include <linux/errno.h>
 #include <linux/adb.h>
 #include <linux/pmu.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/completion.h>
 #include <linux/spinlock.h>
 #include <asm/sections.h>
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 23a67b5..aba81cb 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -17,11 +17,10 @@
 #include <linux/delay.h>
 #include <linux/string.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/irq.h>
 #include <linux/io.h>
 #include <linux/msi.h>
-#include <linux/memblock.h>
 #include <linux/iommu.h>
 #include <linux/rculist.h>
 #include <linux/sizes.h>
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 1251985..658bfab 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -24,7 +24,7 @@
 #include <linux/root_dev.h>
 #include <linux/console.h>
 #include <linux/export.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/machdep.h>
 #include <asm/firmware.h>
diff --git a/arch/powerpc/sysdev/msi_bitmap.c b/arch/powerpc/sysdev/msi_bitmap.c
index 349a9ff..2444fed 100644
--- a/arch/powerpc/sysdev/msi_bitmap.c
+++ b/arch/powerpc/sysdev/msi_bitmap.c
@@ -12,7 +12,7 @@
 #include <linux/kernel.h>
 #include <linux/kmemleak.h>
 #include <linux/bitmap.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <asm/msi_bitmap.h>
 #include <asm/setup.h>
 
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index d58c111..1d9bfaf 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -13,9 +13,8 @@
 
 #include <linux/init.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
-#include <linux/initrd.h>
 #include <linux/memblock.h>
+#include <linux/initrd.h>
 #include <linux/swap.h>
 #include <linux/sizes.h>
 
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index d17566a..97eae38 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -13,10 +13,9 @@
 #include <linux/mm.h>
 #include <linux/gfp.h>
 #include <linux/slab.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/elf.h>
 #include <asm/asm-offsets.h>
-#include <linux/memblock.h>
 #include <asm/os_info.h>
 #include <asm/elf.h>
 #include <asm/ipl.h>
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 2e29456..d55a11b 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -34,7 +34,6 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/initrd.h>
-#include <linux/bootmem.h>
 #include <linux/root_dev.h>
 #include <linux/console.h>
 #include <linux/kernel_stat.h>
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 8f3aafc..f393842 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -20,7 +20,7 @@
 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
 
 #include <linux/workqueue.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 #include <linux/init.h>
 #include <linux/mm.h>
@@ -35,7 +35,6 @@
 #include <linux/sched/hotplug.h>
 #include <linux/sched/task_stack.h>
 #include <linux/crash_dump.h>
-#include <linux/memblock.h>
 #include <linux/kprobes.h>
 #include <asm/asm-offsets.h>
 #include <asm/diag.h>
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 799a918..8992b04 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -8,7 +8,7 @@
 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
 
 #include <linux/workqueue.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/uaccess.h>
 #include <linux/sysctl.h>
 #include <linux/cpuset.h>
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index 3031cc6..dbcb412 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -18,7 +18,7 @@
 #include <linux/user.h>
 #include <linux/elf.h>
 #include <linux/security.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/compat.h>
 #include <asm/asm-offsets.h>
 #include <asm/pgtable.h>
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index 84111a4..eba2def 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -16,7 +16,7 @@
 #include <linux/list.h>
 #include <linux/slab.h>
 #include <linux/export.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/ctype.h>
 #include <linux/ioport.h>
 #include <asm/diag.h>
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 67bdba6..e472cd7 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -21,7 +21,7 @@
 #include <linux/smp.h>
 #include <linux/init.h>
 #include <linux/pagemap.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/memory.h>
 #include <linux/pfn.h>
 #include <linux/poison.h>
@@ -29,7 +29,6 @@
 #include <linux/export.h>
 #include <linux/cma.h>
 #include <linux/gfp.h>
-#include <linux/memblock.h>
 #include <asm/processor.h>
 #include <linux/uaccess.h>
 #include <asm/pgtable.h>
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index 04638b0..0472e27 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -4,14 +4,13 @@
  *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/pfn.h>
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/hugetlb.h>
 #include <linux/slab.h>
-#include <linux/memblock.h>
 #include <asm/cacheflush.h>
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
diff --git a/arch/s390/numa/mode_emu.c b/arch/s390/numa/mode_emu.c
index 5a381fc..bfba273 100644
--- a/arch/s390/numa/mode_emu.c
+++ b/arch/s390/numa/mode_emu.c
@@ -22,7 +22,6 @@
 #include <linux/kernel.h>
 #include <linux/cpumask.h>
 #include <linux/memblock.h>
-#include <linux/bootmem.h>
 #include <linux/node.h>
 #include <linux/memory.h>
 #include <linux/slab.h>
diff --git a/arch/s390/numa/numa.c b/arch/s390/numa/numa.c
index 297f5d8..ae0d9e8 100644
--- a/arch/s390/numa/numa.c
+++ b/arch/s390/numa/numa.c
@@ -13,7 +13,6 @@
 #include <linux/kernel.h>
 #include <linux/mmzone.h>
 #include <linux/cpumask.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/slab.h>
 #include <linux/node.h>
diff --git a/arch/s390/numa/toptree.c b/arch/s390/numa/toptree.c
index 7f61cc3..71a608c 100644
--- a/arch/s390/numa/toptree.c
+++ b/arch/s390/numa/toptree.c
@@ -8,7 +8,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/cpumask.h>
 #include <linux/list.h>
 #include <linux/list_sort.h>
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 21447f8..c8c13c77 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -11,12 +11,11 @@
 #include <linux/swap.h>
 #include <linux/init.h>
 #include <linux/gfp.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/proc_fs.h>
 #include <linux/pagemap.h>
 #include <linux/percpu.h>
 #include <linux/io.h>
-#include <linux/memblock.h>
 #include <linux/dma-mapping.h>
 #include <linux/export.h>
 #include <asm/mmu_context.h>
diff --git a/arch/sh/mm/ioremap_fixed.c b/arch/sh/mm/ioremap_fixed.c
index 927a129..07e744d 100644
--- a/arch/sh/mm/ioremap_fixed.c
+++ b/arch/sh/mm/ioremap_fixed.c
@@ -14,7 +14,7 @@
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/io.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/proc_fs.h>
 #include <asm/fixmap.h>
 #include <asm/page.h>
diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index a41526b..9a26b44 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -5,13 +5,11 @@
  */
 #include <linux/kernel.h>
 #include <linux/types.h>
-#include <linux/memblock.h>
 #include <linux/log2.h>
 #include <linux/list.h>
 #include <linux/slab.h>
 #include <linux/mm.h>
 #include <linux/miscdevice.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/export.h>
 #include <linux/refcount.h>
diff --git a/arch/sparc/kernel/prom_32.c b/arch/sparc/kernel/prom_32.c
index 4389944..d41e2a7 100644
--- a/arch/sparc/kernel/prom_32.c
+++ b/arch/sparc/kernel/prom_32.c
@@ -19,7 +19,7 @@
 #include <linux/types.h>
 #include <linux/string.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/prom.h>
 #include <asm/oplib.h>
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index 5fb11ea..0143909 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -32,7 +32,7 @@
 #include <linux/initrd.h>
 #include <linux/module.h>
 #include <linux/start_kernel.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <uapi/linux/mount.h>
 
 #include <asm/io.h>
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 6cc80d0..4792e08 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -22,7 +22,7 @@
 #include <linux/cache.h>
 #include <linux/jiffies.h>
 #include <linux/profile.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/vmalloc.h>
 #include <linux/ftrace.h>
 #include <linux/cpu.h>
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index 8807145..d900952 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -22,7 +22,6 @@
 #include <linux/initrd.h>
 #include <linux/init.h>
 #include <linux/highmem.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/pagemap.h>
 #include <linux/poison.h>
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index c2c8bff..4d4d331 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -11,7 +11,7 @@
 #include <linux/sched.h>
 #include <linux/string.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <linux/hugetlb.h>
 #include <linux/initrd.h>
@@ -25,7 +25,6 @@
 #include <linux/sort.h>
 #include <linux/ioport.h>
 #include <linux/percpu.h>
-#include <linux/memblock.h>
 #include <linux/mmzone.h>
 #include <linux/gfp.h>
 
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index b48fea5..a6142c5 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -11,7 +11,7 @@
 
 #include <linux/seq_file.h>
 #include <linux/spinlock.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/pagemap.h>
 #include <linux/vmalloc.h>
 #include <linux/kdebug.h>
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index ef19a39..6738168 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -6,7 +6,7 @@
  * Licensed under the GPL.
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/etherdevice.h>
 #include <linux/ethtool.h>
 #include <linux/inetdevice.h>
diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
index 9d77579..af72633 100644
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -9,7 +9,7 @@
  */
 
 #include <linux/version.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/etherdevice.h>
 #include <linux/ethtool.h>
 #include <linux/inetdevice.h>
diff --git a/arch/um/kernel/initrd.c b/arch/um/kernel/initrd.c
index 844056c..3678f5b 100644
--- a/arch/um/kernel/initrd.c
+++ b/arch/um/kernel/initrd.c
@@ -4,7 +4,7 @@
  */
 
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/initrd.h>
 #include <asm/types.h>
 #include <init.h>
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 2c672a8..1067469 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -5,7 +5,6 @@
 
 #include <linux/stddef.h>
 #include <linux/module.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/highmem.h>
 #include <linux/mm.h>
diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c
index 296a91a..5bf56af 100644
--- a/arch/um/kernel/physmem.c
+++ b/arch/um/kernel/physmem.c
@@ -4,7 +4,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/mm.h>
 #include <linux/pfn.h>
diff --git a/arch/unicore32/kernel/hibernate.c b/arch/unicore32/kernel/hibernate.c
index 9969ec3..29b71c6 100644
--- a/arch/unicore32/kernel/hibernate.c
+++ b/arch/unicore32/kernel/hibernate.c
@@ -13,7 +13,7 @@
 
 #include <linux/gfp.h>
 #include <linux/suspend.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/page.h>
 #include <asm/pgtable.h>
diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
index 9f163f9..b2c38b32 100644
--- a/arch/unicore32/kernel/setup.c
+++ b/arch/unicore32/kernel/setup.c
@@ -17,7 +17,7 @@
 #include <linux/utsname.h>
 #include <linux/initrd.h>
 #include <linux/console.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/seq_file.h>
 #include <linux/screen_info.h>
 #include <linux/init.h>
@@ -27,7 +27,6 @@
 #include <linux/smp.h>
 #include <linux/fs.h>
 #include <linux/proc_fs.h>
-#include <linux/memblock.h>
 #include <linux/elf.h>
 #include <linux/io.h>
 
diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
index 3e5bb45..0d2b8fe 100644
--- a/arch/unicore32/mm/init.c
+++ b/arch/unicore32/mm/init.c
@@ -11,13 +11,12 @@
 #include <linux/errno.h>
 #include <linux/swap.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mman.h>
 #include <linux/nodemask.h>
 #include <linux/initrd.h>
 #include <linux/highmem.h>
 #include <linux/gfp.h>
-#include <linux/memblock.h>
 #include <linux/sort.h>
 #include <linux/dma-mapping.h>
 #include <linux/export.h>
diff --git a/arch/unicore32/mm/mmu.c b/arch/unicore32/mm/mmu.c
index 18b355a..040a8c2 100644
--- a/arch/unicore32/mm/mmu.c
+++ b/arch/unicore32/mm/mmu.c
@@ -17,7 +17,6 @@
 #include <linux/nodemask.h>
 #include <linux/memblock.h>
 #include <linux/fs.h>
-#include <linux/bootmem.h>
 #include <linux/io.h>
 
 #include <asm/cputype.h>
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index fd887c1..35419f9 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -32,7 +32,7 @@
 #include <linux/dmi.h>
 #include <linux/irq.h>
 #include <linux/slab.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/ioport.h>
 #include <linux/pci.h>
 #include <linux/efi-bgrt.h>
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index f1915b7..ca13851 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -7,7 +7,6 @@
  */
 
 #include <linux/acpi.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/dmi.h>
 #include <linux/cpumask.h>
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 84132ed..45ae4ce 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -20,7 +20,7 @@
 #include <linux/acpi_pmtmr.h>
 #include <linux/clockchips.h>
 #include <linux/interrupt.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/ftrace.h>
 #include <linux/ioport.h>
 #include <linux/export.h>
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 8c74509..5fbc57e 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -47,7 +47,7 @@
 #include <linux/kthread.h>
 #include <linux/jiffies.h>	/* time_after() */
 #include <linux/slab.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/irqdomain.h>
 #include <asm/io.h>
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index f48f0b9..344865c 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1,7 +1,7 @@
 /* cpu_feature_enabled() cannot be used this early */
 #define USE_EARLY_PGTABLE_L5
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/linkage.h>
 #include <linux/bitops.h>
 #include <linux/kernel.h>
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 7ea8748..cd3b448 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -9,11 +9,10 @@
  * allocation code routines via a platform independent interface (memblock, etc.).
  */
 #include <linux/crash_dump.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/suspend.h>
 #include <linux/acpi.h>
 #include <linux/firmware-map.h>
-#include <linux/memblock.h>
 #include <linux/sort.h>
 
 #include <asm/e820/api.h>
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index f1c5eb9..3482460 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -11,7 +11,6 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/delay.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/kernel_stat.h>
 #include <linux/mc146818rtc.h>
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 7ba73fe..f4562fc 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -3,7 +3,7 @@
 #include <linux/dma-debug.h>
 #include <linux/dmar.h>
 #include <linux/export.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/gfp.h>
 #include <linux/pci.h>
 
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 6615836..d8fb84e 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -5,7 +5,7 @@
 #include <linux/cache.h>
 #include <linux/init.h>
 #include <linux/swiotlb.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/dma-direct.h>
 #include <linux/mem_encrypt.h>
 
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 637982e..9b158b4 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -20,7 +20,7 @@
 #include <linux/notifier.h>
 #include <linux/sched.h>
 #include <linux/gfp.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/nmi.h>
 
 #include <asm/fixmap.h>
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index e493202..79b7f2c 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -30,7 +30,6 @@
 #include <linux/sfi.h>
 #include <linux/apm_bios.h>
 #include <linux/initrd.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/seq_file.h>
 #include <linux/console.h>
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index 483412f..e8796fc 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -4,7 +4,6 @@
 #include <linux/kernel.h>
 #include <linux/export.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/percpu.h>
 #include <linux/kexec.h>
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index f02ecaf..21cf1fb 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -49,7 +49,7 @@
 #include <linux/sched/hotplug.h>
 #include <linux/sched/task_stack.h>
 #include <linux/percpu.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/err.h>
 #include <linux/nmi.h>
 #include <linux/tboot.h>
diff --git a/arch/x86/kernel/tce_64.c b/arch/x86/kernel/tce_64.c
index 75730ce..285aaa6 100644
--- a/arch/x86/kernel/tce_64.c
+++ b/arch/x86/kernel/tce_64.c
@@ -30,7 +30,6 @@
 #include <linux/string.h>
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <asm/tce.h>
 #include <asm/calgary.h>
diff --git a/arch/x86/mm/amdtopology.c b/arch/x86/mm/amdtopology.c
index 048c761..058b2f3 100644
--- a/arch/x86/mm/amdtopology.c
+++ b/arch/x86/mm/amdtopology.c
@@ -12,7 +12,6 @@
 #include <linux/string.h>
 #include <linux/nodemask.h>
 #include <linux/memblock.h>
-#include <linux/bootmem.h>
 
 #include <asm/io.h>
 #include <linux/pci_ids.h>
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index cf16dfe..b6381b0 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -8,7 +8,7 @@
 #include <linux/sched/task_stack.h>	/* task_stack_*(), ...		*/
 #include <linux/kdebug.h>		/* oops_begin/end, ...		*/
 #include <linux/extable.h>		/* search_exception_tables	*/
-#include <linux/bootmem.h>		/* max_low_pfn			*/
+#include <linux/memblock.h>		/* max_low_pfn			*/
 #include <linux/kprobes.h>		/* NOKPROBE_SYMBOL, ...		*/
 #include <linux/mmiotrace.h>		/* kmmio_handler, ...		*/
 #include <linux/perf_event.h>		/* perf_sw_event		*/
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index 62915a5..0d4bdcb 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -1,7 +1,7 @@
 #include <linux/highmem.h>
 #include <linux/export.h>
 #include <linux/swap.h> /* for totalram_pages */
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 void *kmap(struct page *page)
 {
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 7a8fc26..bbb91c0 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -3,7 +3,6 @@
 #include <linux/ioport.h>
 #include <linux/swap.h>
 #include <linux/memblock.h>
-#include <linux/bootmem.h>	/* for max_low_pfn */
 #include <linux/swapfile.h>
 #include <linux/swapops.h>
 
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 8ee1e64..f2837e4 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -23,7 +23,6 @@
 #include <linux/pci.h>
 #include <linux/pfn.h>
 #include <linux/poison.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/proc_fs.h>
 #include <linux/memory_hotplug.h>
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index bfb0bed..5fab264 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -20,7 +20,6 @@
 #include <linux/init.h>
 #include <linux/initrd.h>
 #include <linux/pagemap.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/proc_fs.h>
 #include <linux/pci.h>
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index c63a545..bf2a98e 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -6,7 +6,7 @@
  * (C) Copyright 1995 1996 Linus Torvalds
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/ioport.h>
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index 8f87499..04a9cf6 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -5,10 +5,9 @@
 /* cpu_feature_enabled() cannot be used this early */
 #define USE_EARLY_PGTABLE_L5
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/kasan.h>
 #include <linux/kdebug.h>
-#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
 #include <linux/sched/task.h>
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 16e37d7..1308f54 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -4,7 +4,6 @@
 #include <linux/mm.h>
 #include <linux/string.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/mmzone.h>
 #include <linux/ctype.h>
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
index e8a4a09..f2bd3d6 100644
--- a/arch/x86/mm/numa_32.c
+++ b/arch/x86/mm/numa_32.c
@@ -22,7 +22,6 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/init.h>
 
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 066f351..59d8016 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -3,7 +3,7 @@
  * Generic VM initialization for x86-64 NUMA setups.
  * Copyright 2002,2003 Andi Kleen, SuSE Labs.
  */
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include "numa_internal.h"
 
diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c
index b54d52a..a80fdd7 100644
--- a/arch/x86/mm/numa_emulation.c
+++ b/arch/x86/mm/numa_emulation.c
@@ -6,7 +6,6 @@
 #include <linux/errno.h>
 #include <linux/topology.h>
 #include <linux/memblock.h>
-#include <linux/bootmem.h>
 #include <asm/dma.h>
 
 #include "numa_internal.h"
diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index a25588a..08f8f76 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -5,7 +5,7 @@
  * Clears the a test pte bit on random pages in the direct mapping,
  * then reverts and compares page tables forwards and afterwards.
  */
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/kthread.h>
 #include <linux/random.h>
 #include <linux/kernel.h>
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 51a5a69..83c6ea7 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -3,7 +3,7 @@
  * Thanks to Ben LaHaise for precious feedback.
  */
 #include <linux/highmem.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/interrupt.h>
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 3d0c83e..0801352 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -8,7 +8,7 @@
  */
 
 #include <linux/seq_file.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/debugfs.h>
 #include <linux/ioport.h>
 #include <linux/kernel.h>
diff --git a/arch/x86/mm/physaddr.c b/arch/x86/mm/physaddr.c
index 7f9acb6..bdc9815 100644
--- a/arch/x86/mm/physaddr.c
+++ b/arch/x86/mm/physaddr.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/mmdebug.h>
 #include <linux/export.h>
 #include <linux/mm.h>
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index ed4ac21..8cd6615 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -32,7 +32,7 @@
 #include <linux/init.h>
 #include <linux/ioport.h>
 #include <linux/errno.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/pat.h>
 #include <asm/e820/api.h>
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 9061bab..7ae939e 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -36,9 +36,8 @@
 #include <linux/efi.h>
 #include <linux/efi-bgrt.h>
 #include <linux/export.h>
-#include <linux/bootmem.h>
-#include <linux/slab.h>
 #include <linux/memblock.h>
+#include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/uaccess.h>
 #include <linux/time.h>
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index ee5d08f..ef2ffc3 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -23,7 +23,7 @@
 #include <linux/mm.h>
 #include <linux/types.h>
 #include <linux/spinlock.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/ioport.h>
 #include <linux/mc146818rtc.h>
 #include <linux/efi.h>
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index 7b4854c..bdec6e0 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -8,7 +8,6 @@
 #include <linux/efi.h>
 #include <linux/slab.h>
 #include <linux/memblock.h>
-#include <linux/bootmem.h>
 #include <linux/acpi.h>
 #include <linux/dmi.h>
 
diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
index 140cd76..115c8e4 100644
--- a/arch/x86/platform/olpc/olpc_dt.c
+++ b/arch/x86/platform/olpc/olpc_dt.c
@@ -17,7 +17,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/of_pdt.h>
diff --git a/arch/x86/power/hibernate_32.c b/arch/x86/power/hibernate_32.c
index afc4ed7..b3dacc7 100644
--- a/arch/x86/power/hibernate_32.c
+++ b/arch/x86/power/hibernate_32.c
@@ -8,7 +8,7 @@
 
 #include <linux/gfp.h>
 #include <linux/suspend.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/page.h>
 #include <asm/pgtable.h>
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 749fb4b..ec1394c 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 
 #ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #endif
 #include <linux/cpu.h>
 #include <linux/kexec.h>
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index ec7a420..2f6787f 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -23,7 +23,7 @@
 #include <linux/start_kernel.h>
 #include <linux/sched.h>
 #include <linux/kprobes.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 #include <linux/mm.h>
 #include <linux/page-flags.h>
@@ -31,7 +31,6 @@
 #include <linux/console.h>
 #include <linux/pci.h>
 #include <linux/gfp.h>
-#include <linux/memblock.h>
 #include <linux/edd.h>
 #include <linux/frame.h>
 
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index b3e11af..b067317 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -67,7 +67,6 @@
 #include <linux/hash.h>
 #include <linux/sched.h>
 #include <linux/seq_file.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c
index 21f13e9..5ca440a 100644
--- a/arch/xtensa/kernel/pci.c
+++ b/arch/xtensa/kernel/pci.c
@@ -24,7 +24,7 @@
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/errno.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <asm/pci-bridge.h>
 #include <asm/platform.h>
diff --git a/arch/xtensa/mm/cache.c b/arch/xtensa/mm/cache.c
index 9220dcd..b27359e 100644
--- a/arch/xtensa/mm/cache.c
+++ b/arch/xtensa/mm/cache.c
@@ -21,7 +21,7 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/ptrace.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/swap.h>
 #include <linux/pagemap.h>
 
diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index f7fbe63..9750a48 100644
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -18,7 +18,7 @@
 
 #include <linux/kernel.h>
 #include <linux/errno.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/gfp.h>
 #include <linux/highmem.h>
 #include <linux/swap.h>
diff --git a/arch/xtensa/mm/kasan_init.c b/arch/xtensa/mm/kasan_init.c
index 1a30a25..6b95ca4 100644
--- a/arch/xtensa/mm/kasan_init.c
+++ b/arch/xtensa/mm/kasan_init.c
@@ -8,11 +8,10 @@
  * Copyright (C) 2017 Cadence Design Systems Inc.
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/init_task.h>
 #include <linux/kasan.h>
 #include <linux/kernel.h>
-#include <linux/memblock.h>
 #include <asm/initialize_mmu.h>
 #include <asm/tlbflush.h>
 #include <asm/traps.h>
diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c
index f33a1ff..a4dcfd3 100644
--- a/arch/xtensa/mm/mmu.c
+++ b/arch/xtensa/mm/mmu.c
@@ -4,7 +4,7 @@
  *
  * Extracted from init.c
  */
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/percpu.h>
 #include <linux/init.h>
 #include <linux/string.h>
diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c
index 206b9d4..190846d 100644
--- a/arch/xtensa/platforms/iss/network.c
+++ b/arch/xtensa/platforms/iss/network.c
@@ -30,7 +30,7 @@
 #include <linux/etherdevice.h>
 #include <linux/interrupt.h>
 #include <linux/ioctl.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/ethtool.h>
 #include <linux/rtnetlink.h>
 #include <linux/platform_device.h>
diff --git a/arch/xtensa/platforms/iss/setup.c b/arch/xtensa/platforms/iss/setup.c
index 58709e8..c14cc67 100644
--- a/arch/xtensa/platforms/iss/setup.c
+++ b/arch/xtensa/platforms/iss/setup.c
@@ -16,7 +16,7 @@
  * option) any later version.
  *
  */
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/stddef.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
diff --git a/block/blk-settings.c b/block/blk-settings.c
index ffd4599..696c04c 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -6,7 +6,7 @@
 #include <linux/init.h>
 #include <linux/bio.h>
 #include <linux/blkdev.h>
-#include <linux/bootmem.h>	/* for max_pfn/max_low_pfn */
+#include <linux/memblock.h>	/* for max_pfn/max_low_pfn */
 #include <linux/gcd.h>
 #include <linux/lcm.h>
 #include <linux/jiffies.h>
diff --git a/block/bounce.c b/block/bounce.c
index bc63b3a..6cba9d2 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -18,7 +18,7 @@
 #include <linux/init.h>
 #include <linux/hash.h>
 #include <linux/highmem.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/printk.h>
 #include <asm/tlbflush.h>
 
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 8516760..2746994 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -27,7 +27,6 @@
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/acpi.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/numa.h>
 #include <linux/nodemask.h>
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index a3d012b..61203ee 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -31,9 +31,8 @@
 #include <linux/irq.h>
 #include <linux/errno.h>
 #include <linux/acpi.h>
-#include <linux/bootmem.h>
-#include <linux/earlycpio.h>
 #include <linux/memblock.h>
+#include <linux/earlycpio.h>
 #include <linux/initrd.h>
 #include "internal.h"
 
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index dff82a3..3b31ee2 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -16,7 +16,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/dma-mapping.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/pm_runtime.h>
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index a0136ed..8aa5f8f 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -23,7 +23,7 @@
 #include <linux/of_address.h>
 #include <linux/list.h>
 #include <linux/regmap.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/device.h>
 
 #include "clock.h"
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index f248354..099d83e 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -5,7 +5,7 @@
 #include <linux/ctype.h>
 #include <linux/dmi.h>
 #include <linux/efi.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/random.h>
 #include <asm/dmi.h>
 #include <asm/unaligned.h>
diff --git a/drivers/firmware/efi/apple-properties.c b/drivers/firmware/efi/apple-properties.c
index 2b675f7..ac1654f 100644
--- a/drivers/firmware/efi/apple-properties.c
+++ b/drivers/firmware/efi/apple-properties.c
@@ -20,7 +20,7 @@
 
 #define pr_fmt(fmt) "apple-properties: " fmt
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/efi.h>
 #include <linux/io.h>
 #include <linux/platform_data/x86/apple.h>
diff --git a/drivers/firmware/iscsi_ibft_find.c b/drivers/firmware/iscsi_ibft_find.c
index 2224f1d..72d9ea1 100644
--- a/drivers/firmware/iscsi_ibft_find.c
+++ b/drivers/firmware/iscsi_ibft_find.c
@@ -18,7 +18,7 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/blkdev.h>
 #include <linux/ctype.h>
 #include <linux/device.h>
diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
index 03cead6..2a23453 100644
--- a/drivers/firmware/memmap.c
+++ b/drivers/firmware/memmap.c
@@ -19,7 +19,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/types.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/slab.h>
 #include <linux/mm.h>
 
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index f9f69f7..44bd5b9 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -11,7 +11,7 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/bug.h>
 #include <linux/clk.h>
 #include <linux/component.h>
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index 676c029..0e78084 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -13,7 +13,7 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/bug.h>
 #include <linux/clk.h>
 #include <linux/component.h>
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index 0069f90..880a81c 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -23,7 +23,7 @@
 #include <linux/kernel.h>
 #include <linux/device.h>
 #include <linux/dmapool.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/vmalloc.h>
 #include <linux/highmem.h>
 #include <linux/jiffies.h>
@@ -38,7 +38,6 @@
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/slab.h>
-#include <linux/memblock.h>
 #include <linux/sched/signal.h>
 
 #include <asm/byteorder.h>
diff --git a/drivers/mtd/ar7part.c b/drivers/mtd/ar7part.c
index fc15ec5..0d33cf0 100644
--- a/drivers/mtd/ar7part.c
+++ b/drivers/mtd/ar7part.c
@@ -25,7 +25,7 @@
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/module.h>
 
 #include <uapi/linux/magic.h>
diff --git a/drivers/net/arcnet/arc-rimi.c b/drivers/net/arcnet/arc-rimi.c
index a07e249..11c5bad 100644
--- a/drivers/net/arcnet/arc-rimi.c
+++ b/drivers/net/arcnet/arc-rimi.c
@@ -33,7 +33,7 @@
 #include <linux/ioport.h>
 #include <linux/delay.h>
 #include <linux/netdevice.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
diff --git a/drivers/net/arcnet/com20020-isa.c b/drivers/net/arcnet/com20020-isa.c
index 38fa60d..28510e3 100644
--- a/drivers/net/arcnet/com20020-isa.c
+++ b/drivers/net/arcnet/com20020-isa.c
@@ -38,7 +38,7 @@
 #include <linux/netdevice.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/io.h>
 
 #include "arcdevice.h"
diff --git a/drivers/net/arcnet/com90io.c b/drivers/net/arcnet/com90io.c
index 4e56aaf..2c54601 100644
--- a/drivers/net/arcnet/com90io.c
+++ b/drivers/net/arcnet/com90io.c
@@ -34,7 +34,7 @@
 #include <linux/ioport.h>
 #include <linux/delay.h>
 #include <linux/netdevice.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 34dd878..48314e9 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -11,7 +11,6 @@
 #include <linux/crc32.h>
 #include <linux/kernel.h>
 #include <linux/initrd.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/mutex.h>
 #include <linux/of.h>
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 07c9217..5de5ceb 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -5,7 +5,7 @@
 
 #define pr_fmt(fmt) "### dt-test ### " fmt
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/errno.h>
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 16a4e85..8f3a2ee 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -8,7 +8,7 @@
  *     Copyright IBM Corp. 2003, 2009
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/console.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 5b8af27..2b0c36c2 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -19,7 +19,7 @@
 #include <linux/workqueue.h>
 
 #include <linux/slab.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/compat.h>
 
 #include <asm/ccwdev.h>
diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index 8af4948..72dd247 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -13,7 +13,7 @@
 #define KMSG_COMPONENT "cio"
 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/device.h>
 #include <linux/init.h>
 #include <linux/list.h>
diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c
index 8f5c1d7..97b6f19 100644
--- a/drivers/s390/virtio/virtio_ccw.c
+++ b/drivers/s390/virtio/virtio_ccw.c
@@ -9,7 +9,7 @@
 
 #include <linux/kernel_stat.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/err.h>
 #include <linux/virtio.h>
 #include <linux/virtio_config.h>
diff --git a/drivers/sfi/sfi_core.c b/drivers/sfi/sfi_core.c
index 153b3f3..a513690 100644
--- a/drivers/sfi/sfi_core.c
+++ b/drivers/sfi/sfi_core.c
@@ -59,7 +59,7 @@
 #define KMSG_COMPONENT "SFI"
 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/errno.h>
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index 24a5f05..c547e0e 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -24,7 +24,7 @@
 #include <linux/console.h>
 #include <linux/sysrq.h>
 #include <linux/device.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/dma-mapping.h>
 #include <linux/fs_uart_pd.h>
 #include <linux/of_address.h>
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c
index 4eba17f..56fc527 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c
@@ -19,7 +19,7 @@
 #include <linux/console.h>
 #include <linux/sysrq.h>
 #include <linux/device.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/dma-mapping.h>
 
 #include <asm/io.h>
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/tty/serial/cpm_uart/cpm_uart_cpm2.c
index e3bff06..6a1cd03 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_cpm2.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_cpm2.c
@@ -19,7 +19,7 @@
 #include <linux/console.h>
 #include <linux/sysrq.h>
 #include <linux/device.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/dma-mapping.h>
 
 #include <asm/io.h>
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
index 4411404..9d4ee88 100644
--- a/drivers/usb/early/xhci-dbc.c
+++ b/drivers/usb/early/xhci-dbc.c
@@ -12,7 +12,6 @@
 #include <linux/console.h>
 #include <linux/pci_regs.h>
 #include <linux/pci_ids.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/io.h>
 #include <asm/pci-direct.h>
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index e12bb25..a3f5cbf 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -44,7 +44,7 @@
 #include <linux/cred.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/pagemap.h>
 #include <linux/highmem.h>
 #include <linux/mutex.h>
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 08e4af0..88ec5f0 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -28,7 +28,7 @@
 #include <linux/irq.h>
 #include <linux/moduleparam.h>
 #include <linux/string.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/slab.h>
 #include <linux/irqnr.h>
 #include <linux/pci.h>
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 7bafa70..16c9ffd 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -33,7 +33,7 @@
 
 #define pr_fmt(fmt) "xen:" KBUILD_MODNAME ": " fmt
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 6c13ff4..a8fb7bb 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -35,7 +35,6 @@
 
 #define pr_fmt(fmt) "xen:" KBUILD_MODNAME ": " fmt
 
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/dma-direct.h>
 #include <linux/export.h>
diff --git a/drivers/xen/xen-selfballoon.c b/drivers/xen/xen-selfballoon.c
index 55988b8..5165aa8 100644
--- a/drivers/xen/xen-selfballoon.c
+++ b/drivers/xen/xen-selfballoon.c
@@ -68,7 +68,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/kernel.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/swap.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
diff --git a/fs/dcache.c b/fs/dcache.c
index c2e443f..2593153 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -26,7 +26,7 @@
 #include <linux/export.h>
 #include <linux/security.h>
 #include <linux/seqlock.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/bit_spinlock.h>
 #include <linux/rculist_bl.h>
 #include <linux/list_lru.h>
diff --git a/fs/inode.c b/fs/inode.c
index 41812a3..db9c263 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -10,7 +10,7 @@
 #include <linux/swap.h>
 #include <linux/security.h>
 #include <linux/cdev.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/fsnotify.h>
 #include <linux/mount.h>
 #include <linux/posix_acl.h>
diff --git a/fs/namespace.c b/fs/namespace.c
index a240e20..8000a71 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -24,7 +24,7 @@
 #include <linux/uaccess.h>
 #include <linux/proc_ns.h>
 #include <linux/magic.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/task_work.h>
 #include <linux/file.h>
 #include <linux/sched/task.h>
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index d297fe4..bbcc185 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -22,7 +22,7 @@
 #include <linux/vmalloc.h>
 #include <linux/highmem.h>
 #include <linux/printk.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/uaccess.h>
diff --git a/fs/proc/page.c b/fs/proc/page.c
index 792c78a..6c517b1 100644
--- a/fs/proc/page.c
+++ b/fs/proc/page.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/compiler.h>
 #include <linux/fs.h>
 #include <linux/init.h>
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index cbde728..9106b75 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -16,7 +16,7 @@
 #include <linux/slab.h>
 #include <linux/highmem.h>
 #include <linux/printk.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/init.h>
 #include <linux/crash_dump.h>
 #include <linux/list.h>
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
deleted file mode 100644
index b58873a..0000000
--- a/include/linux/bootmem.h
+++ /dev/null
@@ -1,173 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Discontiguous memory support, Kanoj Sarcar, SGI, Nov 1999
- */
-#ifndef _LINUX_BOOTMEM_H
-#define _LINUX_BOOTMEM_H
-
-#include <linux/mmzone.h>
-#include <linux/mm_types.h>
-#include <asm/dma.h>
-#include <asm/processor.h>
-
-/*
- *  simple boot-time physical memory area allocator.
- */
-
-extern unsigned long max_low_pfn;
-extern unsigned long min_low_pfn;
-
-/*
- * highest page
- */
-extern unsigned long max_pfn;
-/*
- * highest possible page
- */
-extern unsigned long long max_possible_pfn;
-
-extern unsigned long memblock_free_all(void);
-extern void reset_node_managed_pages(pg_data_t *pgdat);
-extern void reset_all_zones_managed_pages(void);
-
-/* We are using top down, so it is safe to use 0 here */
-#define BOOTMEM_LOW_LIMIT 0
-
-#ifndef ARCH_LOW_ADDRESS_LIMIT
-#define ARCH_LOW_ADDRESS_LIMIT  0xffffffffUL
-#endif
-
-/* FIXME: use MEMBLOCK_ALLOC_* variants here */
-#define BOOTMEM_ALLOC_ACCESSIBLE	0
-#define BOOTMEM_ALLOC_ANYWHERE		(~(phys_addr_t)0)
-
-/* FIXME: Move to memblock.h at a point where we remove nobootmem.c */
-void *memblock_alloc_try_nid_raw(phys_addr_t size, phys_addr_t align,
-				      phys_addr_t min_addr,
-				      phys_addr_t max_addr, int nid);
-void *memblock_alloc_try_nid_nopanic(phys_addr_t size,
-		phys_addr_t align, phys_addr_t min_addr,
-		phys_addr_t max_addr, int nid);
-void *memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align,
-		phys_addr_t min_addr, phys_addr_t max_addr, int nid);
-void __memblock_free_early(phys_addr_t base, phys_addr_t size);
-void __memblock_free_late(phys_addr_t base, phys_addr_t size);
-
-static inline void * __init memblock_alloc(
-					phys_addr_t size,  phys_addr_t align)
-{
-	return memblock_alloc_try_nid(size, align, BOOTMEM_LOW_LIMIT,
-					    BOOTMEM_ALLOC_ACCESSIBLE,
-					    NUMA_NO_NODE);
-}
-
-static inline void * __init memblock_alloc_raw(
-					phys_addr_t size,  phys_addr_t align)
-{
-	return memblock_alloc_try_nid_raw(size, align, BOOTMEM_LOW_LIMIT,
-					    BOOTMEM_ALLOC_ACCESSIBLE,
-					    NUMA_NO_NODE);
-}
-
-static inline void * __init memblock_alloc_from(
-		phys_addr_t size, phys_addr_t align, phys_addr_t min_addr)
-{
-	return memblock_alloc_try_nid(size, align, min_addr,
-				      BOOTMEM_ALLOC_ACCESSIBLE,
-				      NUMA_NO_NODE);
-}
-
-static inline void * __init memblock_alloc_nopanic(
-					phys_addr_t size, phys_addr_t align)
-{
-	return memblock_alloc_try_nid_nopanic(size, align,
-						    BOOTMEM_LOW_LIMIT,
-						    BOOTMEM_ALLOC_ACCESSIBLE,
-						    NUMA_NO_NODE);
-}
-
-static inline void * __init memblock_alloc_low(
-					phys_addr_t size, phys_addr_t align)
-{
-	return memblock_alloc_try_nid(size, align,
-						   BOOTMEM_LOW_LIMIT,
-						   ARCH_LOW_ADDRESS_LIMIT,
-						   NUMA_NO_NODE);
-}
-static inline void * __init memblock_alloc_low_nopanic(
-					phys_addr_t size, phys_addr_t align)
-{
-	return memblock_alloc_try_nid_nopanic(size, align,
-						   BOOTMEM_LOW_LIMIT,
-						   ARCH_LOW_ADDRESS_LIMIT,
-						   NUMA_NO_NODE);
-}
-
-static inline void * __init memblock_alloc_from_nopanic(
-		phys_addr_t size, phys_addr_t align, phys_addr_t min_addr)
-{
-	return memblock_alloc_try_nid_nopanic(size, align, min_addr,
-						    BOOTMEM_ALLOC_ACCESSIBLE,
-						    NUMA_NO_NODE);
-}
-
-static inline void * __init memblock_alloc_node(
-		phys_addr_t size, phys_addr_t align, int nid)
-{
-	return memblock_alloc_try_nid(size, align, BOOTMEM_LOW_LIMIT,
-					    BOOTMEM_ALLOC_ACCESSIBLE, nid);
-}
-
-static inline void * __init memblock_alloc_node_nopanic(
-						phys_addr_t size, int nid)
-{
-	return memblock_alloc_try_nid_nopanic(size, 0, BOOTMEM_LOW_LIMIT,
-						    BOOTMEM_ALLOC_ACCESSIBLE,
-						    nid);
-}
-
-static inline void __init memblock_free_early(
-					phys_addr_t base, phys_addr_t size)
-{
-	__memblock_free_early(base, size);
-}
-
-static inline void __init memblock_free_early_nid(
-				phys_addr_t base, phys_addr_t size, int nid)
-{
-	__memblock_free_early(base, size);
-}
-
-static inline void __init memblock_free_late(
-					phys_addr_t base, phys_addr_t size)
-{
-	__memblock_free_late(base, size);
-}
-
-extern void *alloc_large_system_hash(const char *tablename,
-				     unsigned long bucketsize,
-				     unsigned long numentries,
-				     int scale,
-				     int flags,
-				     unsigned int *_hash_shift,
-				     unsigned int *_hash_mask,
-				     unsigned long low_limit,
-				     unsigned long high_limit);
-
-#define HASH_EARLY	0x00000001	/* Allocating during early boot? */
-#define HASH_SMALL	0x00000002	/* sub-page allocation allowed, min
-					 * shift passed via *_hash_shift */
-#define HASH_ZERO	0x00000004	/* Zero allocated hash table */
-
-/* Only NUMA needs hash distribution. 64bit NUMA architectures have
- * sufficient vmalloc space.
- */
-#ifdef CONFIG_NUMA
-#define HASHDIST_DEFAULT IS_ENABLED(CONFIG_64BIT)
-extern int hashdist;		/* Distribute hashes across NUMA nodes? */
-#else
-#define hashdist (0)
-#endif
-
-
-#endif /* _LINUX_BOOTMEM_H */
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index f16833c..d3bc270 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -15,6 +15,19 @@
 
 #include <linux/init.h>
 #include <linux/mm.h>
+#include <asm/dma.h>
+
+extern unsigned long max_low_pfn;
+extern unsigned long min_low_pfn;
+
+/*
+ * highest page
+ */
+extern unsigned long max_pfn;
+/*
+ * highest possible page
+ */
+extern unsigned long long max_possible_pfn;
 
 #define INIT_MEMBLOCK_REGIONS	128
 #define INIT_PHYSMEM_REGIONS	4
@@ -119,6 +132,10 @@ int memblock_mark_nomap(phys_addr_t base, phys_addr_t size);
 int memblock_clear_nomap(phys_addr_t base, phys_addr_t size);
 enum memblock_flags choose_memblock_flags(void);
 
+unsigned long memblock_free_all(void);
+void reset_node_managed_pages(pg_data_t *pgdat);
+void reset_all_zones_managed_pages(void);
+
 /* Low level functions */
 int memblock_add_range(struct memblock_type *type,
 		       phys_addr_t base, phys_addr_t size,
@@ -315,11 +332,116 @@ static inline int memblock_get_region_node(const struct memblock_region *r)
 }
 #endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
 
+/* Flags for memblock allocation APIs */
+#define MEMBLOCK_ALLOC_ANYWHERE	(~(phys_addr_t)0)
+#define MEMBLOCK_ALLOC_ACCESSIBLE	0
+
+/* We are using top down, so it is safe to use 0 here */
+#define MEMBLOCK_LOW_LIMIT 0
+
+#ifndef ARCH_LOW_ADDRESS_LIMIT
+#define ARCH_LOW_ADDRESS_LIMIT  0xffffffffUL
+#endif
+
 phys_addr_t memblock_phys_alloc_nid(phys_addr_t size, phys_addr_t align, int nid);
 phys_addr_t memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid);
 
 phys_addr_t memblock_phys_alloc(phys_addr_t size, phys_addr_t align);
 
+void *memblock_alloc_try_nid_raw(phys_addr_t size, phys_addr_t align,
+				 phys_addr_t min_addr, phys_addr_t max_addr,
+				 int nid);
+void *memblock_alloc_try_nid_nopanic(phys_addr_t size, phys_addr_t align,
+				     phys_addr_t min_addr, phys_addr_t max_addr,
+				     int nid);
+void *memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align,
+			     phys_addr_t min_addr, phys_addr_t max_addr,
+			     int nid);
+
+static inline void * __init memblock_alloc(phys_addr_t size,  phys_addr_t align)
+{
+	return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,
+				      MEMBLOCK_ALLOC_ACCESSIBLE, NUMA_NO_NODE);
+}
+
+static inline void * __init memblock_alloc_raw(phys_addr_t size,
+					       phys_addr_t align)
+{
+	return memblock_alloc_try_nid_raw(size, align, MEMBLOCK_LOW_LIMIT,
+					  MEMBLOCK_ALLOC_ACCESSIBLE,
+					  NUMA_NO_NODE);
+}
+
+static inline void * __init memblock_alloc_from(phys_addr_t size,
+						phys_addr_t align,
+						phys_addr_t min_addr)
+{
+	return memblock_alloc_try_nid(size, align, min_addr,
+				      MEMBLOCK_ALLOC_ACCESSIBLE, NUMA_NO_NODE);
+}
+
+static inline void * __init memblock_alloc_nopanic(phys_addr_t size,
+						   phys_addr_t align)
+{
+	return memblock_alloc_try_nid_nopanic(size, align, MEMBLOCK_LOW_LIMIT,
+					      MEMBLOCK_ALLOC_ACCESSIBLE,
+					      NUMA_NO_NODE);
+}
+
+static inline void * __init memblock_alloc_low(phys_addr_t size,
+					       phys_addr_t align)
+{
+	return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,
+				      ARCH_LOW_ADDRESS_LIMIT, NUMA_NO_NODE);
+}
+static inline void * __init memblock_alloc_low_nopanic(phys_addr_t size,
+						       phys_addr_t align)
+{
+	return memblock_alloc_try_nid_nopanic(size, align, MEMBLOCK_LOW_LIMIT,
+					      ARCH_LOW_ADDRESS_LIMIT,
+					      NUMA_NO_NODE);
+}
+
+static inline void * __init memblock_alloc_from_nopanic(phys_addr_t size,
+							phys_addr_t align,
+							phys_addr_t min_addr)
+{
+	return memblock_alloc_try_nid_nopanic(size, align, min_addr,
+					      MEMBLOCK_ALLOC_ACCESSIBLE,
+					      NUMA_NO_NODE);
+}
+
+static inline void * __init memblock_alloc_node(phys_addr_t size,
+						phys_addr_t align, int nid)
+{
+	return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,
+				      MEMBLOCK_ALLOC_ACCESSIBLE, nid);
+}
+
+static inline void * __init memblock_alloc_node_nopanic(phys_addr_t size,
+							int nid)
+{
+	return memblock_alloc_try_nid_nopanic(size, 0, MEMBLOCK_LOW_LIMIT,
+					      MEMBLOCK_ALLOC_ACCESSIBLE, nid);
+}
+
+static inline void __init memblock_free_early(phys_addr_t base,
+					      phys_addr_t size)
+{
+	__memblock_free_early(base, size);
+}
+
+static inline void __init memblock_free_early_nid(phys_addr_t base,
+						  phys_addr_t size, int nid)
+{
+	__memblock_free_early(base, size);
+}
+
+static inline void __init memblock_free_late(phys_addr_t base, phys_addr_t size)
+{
+	__memblock_free_late(base, size);
+}
+
 /*
  * Set the allocation direction to bottom-up or top-down.
  */
@@ -338,10 +460,6 @@ static inline bool memblock_bottom_up(void)
 	return memblock.bottom_up;
 }
 
-/* Flags for memblock_alloc_base() amd __memblock_alloc_base() */
-#define MEMBLOCK_ALLOC_ANYWHERE	(~(phys_addr_t)0)
-#define MEMBLOCK_ALLOC_ACCESSIBLE	0
-
 phys_addr_t __init memblock_alloc_range(phys_addr_t size, phys_addr_t align,
 					phys_addr_t start, phys_addr_t end,
 					enum memblock_flags flags);
@@ -447,6 +565,31 @@ static inline unsigned long memblock_region_reserved_end_pfn(const struct memblo
 	     i < memblock_type->cnt;					\
 	     i++, rgn = &memblock_type->regions[i])
 
+extern void *alloc_large_system_hash(const char *tablename,
+				     unsigned long bucketsize,
+				     unsigned long numentries,
+				     int scale,
+				     int flags,
+				     unsigned int *_hash_shift,
+				     unsigned int *_hash_mask,
+				     unsigned long low_limit,
+				     unsigned long high_limit);
+
+#define HASH_EARLY	0x00000001	/* Allocating during early boot? */
+#define HASH_SMALL	0x00000002	/* sub-page allocation allowed, min
+					 * shift passed via *_hash_shift */
+#define HASH_ZERO	0x00000004	/* Zero allocated hash table */
+
+/* Only NUMA needs hash distribution. 64bit NUMA architectures have
+ * sufficient vmalloc space.
+ */
+#ifdef CONFIG_NUMA
+#define HASHDIST_DEFAULT IS_ENABLED(CONFIG_64BIT)
+extern int hashdist;		/* Distribute hashes across NUMA nodes? */
+#else
+#define hashdist (0)
+#endif
+
 #ifdef CONFIG_MEMTEST
 extern void early_memtest(phys_addr_t start, phys_addr_t end);
 #else
diff --git a/init/main.c b/init/main.c
index 99a9e99..473b554 100644
--- a/init/main.c
+++ b/init/main.c
@@ -25,7 +25,7 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/initrd.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/acpi.h>
 #include <linux/console.h>
 #include <linux/nmi.h>
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index d9fd062..7d83707 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -39,7 +39,7 @@
 #include <asm/dma.h>
 
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/iommu-helper.h>
 
 #define CREATE_TRACE_POINTS
diff --git a/kernel/futex.c b/kernel/futex.c
index 11fc3bb..2f82a24 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -65,7 +65,7 @@
 #include <linux/sched/mm.h>
 #include <linux/hugetlb.h>
 #include <linux/freezer.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/fault-inject.h>
 
 #include <asm/futex.h>
diff --git a/kernel/locking/qspinlock_paravirt.h b/kernel/locking/qspinlock_paravirt.h
index 5a0cf5f..1c960f5 100644
--- a/kernel/locking/qspinlock_paravirt.h
+++ b/kernel/locking/qspinlock_paravirt.h
@@ -4,7 +4,7 @@
 #endif
 
 #include <linux/hash.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/debug_locks.h>
 
 /*
diff --git a/kernel/pid.c b/kernel/pid.c
index cdf63e5..b2f6c50 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -31,7 +31,7 @@
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/rculist.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/hash.h>
 #include <linux/pid_namespace.h>
 #include <linux/init_task.h>
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 34116a6..3c9e365 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -23,7 +23,7 @@
 #include <linux/pm.h>
 #include <linux/device.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/nmi.h>
 #include <linux/syscalls.h>
 #include <linux/console.h>
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 3efcbe518..54ebe01 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -29,7 +29,6 @@
 #include <linux/delay.h>
 #include <linux/smp.h>
 #include <linux/security.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/syscalls.h>
 #include <linux/crash_core.h>
diff --git a/kernel/profile.c b/kernel/profile.c
index 9aa2a44..9c08a2c 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -16,7 +16,7 @@
 
 #include <linux/export.h>
 #include <linux/profile.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/notifier.h>
 #include <linux/mm.h>
 #include <linux/cpumask.h>
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 1405cb2..75b5e76 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -4,7 +4,7 @@
 #include <linux/bitops.h>
 #include <linux/cpumask.h>
 #include <linux/export.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 /**
  * cpumask_next - get the next cpu in a cpumask
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 67629dc..10b360e 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -15,7 +15,6 @@
 #include <linux/compiler.h>
 #include <linux/cpuset.h>
 #include <linux/mutex.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/sysfs.h>
 #include <linux/slab.h>
diff --git a/mm/kasan/kasan_init.c b/mm/kasan/kasan_init.c
index 785a970..c7550eb 100644
--- a/mm/kasan/kasan_init.c
+++ b/mm/kasan/kasan_init.c
@@ -10,11 +10,10 @@
  *
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/init.h>
 #include <linux/kasan.h>
 #include <linux/kernel.h>
-#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <linux/pfn.h>
 #include <linux/slab.h>
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 4f7e4b5..877de4f 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -92,7 +92,7 @@
 #include <linux/stacktrace.h>
 #include <linux/cache.h>
 #include <linux/percpu.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/pfn.h>
 #include <linux/mmzone.h>
 #include <linux/slab.h>
diff --git a/mm/memblock.c b/mm/memblock.c
index 86a4b80..32e5c62 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -20,7 +20,6 @@
 #include <linux/kmemleak.h>
 #include <linux/seq_file.h>
 #include <linux/memblock.h>
-#include <linux/bootmem.h>
 
 #include <asm/sections.h>
 #include <linux/io.h>
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 38d94b7..7687271 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -33,7 +33,6 @@
 #include <linux/stop_machine.h>
 #include <linux/hugetlb.h>
 #include <linux/memblock.h>
-#include <linux/bootmem.h>
 #include <linux/compaction.h>
 
 #include <asm/tlbflush.h>
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index f4a8bc8..511447a 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -20,7 +20,6 @@
 #include <linux/interrupt.h>
 #include <linux/pagemap.h>
 #include <linux/jiffies.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/compiler.h>
 #include <linux/kernel.h>
diff --git a/mm/page_ext.c b/mm/page_ext.c
index 5323c2a..ae44f7a 100644
--- a/mm/page_ext.c
+++ b/mm/page_ext.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <linux/mmzone.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/page_ext.h>
 #include <linux/memory.h>
 #include <linux/vmalloc.h>
diff --git a/mm/page_idle.c b/mm/page_idle.c
index 6302bc6..b9e4b42 100644
--- a/mm/page_idle.c
+++ b/mm/page_idle.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/fs.h>
 #include <linux/sysfs.h>
 #include <linux/kobject.h>
diff --git a/mm/page_owner.c b/mm/page_owner.c
index c2494f0..dd7b290 100644
--- a/mm/page_owner.c
+++ b/mm/page_owner.c
@@ -3,7 +3,7 @@
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/uaccess.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/stacktrace.h>
 #include <linux/page_owner.h>
 #include <linux/jump_label.h>
diff --git a/mm/percpu.c b/mm/percpu.c
index 86bb9f6..cac9d2f 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -65,7 +65,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/bitmap.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/err.h>
 #include <linux/lcm.h>
 #include <linux/list.h>
diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
index 7408cab..7fec057 100644
--- a/mm/sparse-vmemmap.c
+++ b/mm/sparse-vmemmap.c
@@ -20,7 +20,6 @@
  */
 #include <linux/mm.h>
 #include <linux/mmzone.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/memremap.h>
 #include <linux/highmem.h>
diff --git a/mm/sparse.c b/mm/sparse.c
index 0dcc306..c0788e3 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -5,7 +5,6 @@
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/mmzone.h>
-#include <linux/bootmem.h>
 #include <linux/memblock.h>
 #include <linux/compiler.h>
 #include <linux/highmem.h>
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index f5c9ef2..411dd7a 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -19,7 +19,7 @@
 #include <linux/slab.h>
 #include <linux/wait.h>
 #include <linux/vmalloc.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 
 #include <net/addrconf.h>
 #include <net/inet_connection_sock.h>
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 67670fa..a74a4a7 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -262,7 +262,7 @@
 #include <linux/net.h>
 #include <linux/socket.h>
 #include <linux/random.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/highmem.h>
 #include <linux/swap.h>
 #include <linux/cache.h>
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index f4e35b2..5852044 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -81,7 +81,7 @@
 
 #include <linux/uaccess.h>
 #include <asm/ioctls.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/highmem.h>
 #include <linux/swap.h>
 #include <linux/types.h>
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index e948db2..9b277bd 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -46,7 +46,7 @@
 #include <linux/netdevice.h>
 #include <linux/inetdevice.h>
 #include <linux/seq_file.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/highmem.h>
 #include <linux/swap.h>
 #include <linux/slab.h>
diff --git a/net/xfrm/xfrm_hash.c b/net/xfrm/xfrm_hash.c
index 2ad33ce..eca8d84 100644
--- a/net/xfrm/xfrm_hash.c
+++ b/net/xfrm/xfrm_hash.c
@@ -6,7 +6,7 @@
 
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
 #include <linux/xfrm.h>
-- 
2.7.4

From - Thu Nov 08 21:41:57 2018
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Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 02/30] mm: remove CONFIG_NO_BOOTMEM
Date: Fri, 14 Sep 2018 15:10:17 +0300
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
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To: linux-mm@kvack.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ppc.embedded/130759>

All achitectures select NO_BOOTMEM which essentially becomes 'Y' for any
kernel configuration and therefore it can be removed.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
---
 arch/alpha/Kconfig      |  1 -
 arch/arc/Kconfig        |  1 -
 arch/arm/Kconfig        |  1 -
 arch/arm64/Kconfig      |  1 -
 arch/c6x/Kconfig        |  1 -
 arch/h8300/Kconfig      |  1 -
 arch/hexagon/Kconfig    |  1 -
 arch/ia64/Kconfig       |  1 -
 arch/m68k/Kconfig       |  1 -
 arch/microblaze/Kconfig |  1 -
 arch/mips/Kconfig       |  1 -
 arch/nds32/Kconfig      |  1 -
 arch/nios2/Kconfig      |  1 -
 arch/openrisc/Kconfig   |  1 -
 arch/parisc/Kconfig     |  1 -
 arch/powerpc/Kconfig    |  1 -
 arch/riscv/Kconfig      |  1 -
 arch/s390/Kconfig       |  1 -
 arch/sh/Kconfig         |  1 -
 arch/sparc/Kconfig      |  1 -
 arch/um/Kconfig         |  1 -
 arch/unicore32/Kconfig  |  1 -
 arch/x86/Kconfig        |  3 ---
 arch/xtensa/Kconfig     |  1 -
 include/linux/bootmem.h | 36 ++----------------------------------
 include/linux/mmzone.h  |  5 +----
 mm/Kconfig              |  3 ---
 mm/Makefile             |  7 +------
 mm/memblock.c           |  2 --
 29 files changed, 4 insertions(+), 75 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 620b0a7..04de6be 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -32,7 +32,6 @@ config ALPHA
 	select OLD_SIGSUSPEND
 	select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
 	select HAVE_MEMBLOCK
-	select NO_BOOTMEM
 	help
 	  The Alpha is a 64-bit general-purpose processor designed and
 	  marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index b4441b0..04ebead 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -44,7 +44,6 @@ config ARC
 	select HANDLE_DOMAIN_IRQ
 	select IRQ_DOMAIN
 	select MODULES_USE_ELF_RELA
-	select NO_BOOTMEM
 	select OF
 	select OF_EARLY_FLATTREE
 	select OF_RESERVED_MEM
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 4607d32..a961d70 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -100,7 +100,6 @@ config ARM
 	select IRQ_FORCED_THREADING
 	select MODULES_USE_ELF_REL
 	select NEED_DMA_MAP_STATE
-	select NO_BOOTMEM
 	select OF_EARLY_FLATTREE if OF
 	select OF_RESERVED_MEM if OF
 	select OLD_SIGACTION
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 0128d84..1795eaa 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -156,7 +156,6 @@ config ARM64
 	select MULTI_IRQ_HANDLER
 	select NEED_DMA_MAP_STATE
 	select NEED_SG_DMA_LENGTH
-	select NO_BOOTMEM
 	select OF
 	select OF_EARLY_FLATTREE
 	select OF_RESERVED_MEM
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 85ed568..a641b0b 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -14,7 +14,6 @@ config C6X
 	select GENERIC_IRQ_SHOW
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_MEMBLOCK
-	select NO_BOOTMEM
 	select SPARSE_IRQ
 	select IRQ_DOMAIN
 	select OF
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 0b334b6..5e89d40 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -16,7 +16,6 @@ config H8300
 	select OF_IRQ
 	select OF_EARLY_FLATTREE
 	select HAVE_MEMBLOCK
-	select NO_BOOTMEM
 	select TIMER_OF
 	select H8300_TMR8
 	select HAVE_KERNEL_GZIP
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 3ba6873..24a6da9 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -33,7 +33,6 @@ config HEXAGON
 	select GENERIC_CPU_DEVICES
 	select HAVE_MEMBLOCK
 	select ARCH_DISCARD_MEMBLOCK
-	select NO_BOOTMEM
 	---help---
 	  Qualcomm Hexagon is a processor architecture designed for high
 	  performance and low power across a wide variety of applications.
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 8b4a0c17..2bf4ef7 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -28,7 +28,6 @@ config IA64
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
-	select NO_BOOTMEM
 	select HAVE_VIRT_CPU_ACCOUNTING
 	select ARCH_HAS_DMA_MARK_CLEAN
 	select ARCH_HAS_SG_CHAIN
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 0705537..8c7111d 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -29,7 +29,6 @@ config M68K
 	select DMA_NONCOHERENT_OPS if HAS_DMA
 	select HAVE_MEMBLOCK
 	select ARCH_DISCARD_MEMBLOCK
-	select NO_BOOTMEM
 
 config CPU_BIG_ENDIAN
 	def_bool y
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index ace5c5b..56379b9 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -28,7 +28,6 @@ config MICROBLAZE
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FUNCTION_TRACER
-	select NO_BOOTMEM
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_OPROFILE
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 1b5fa1a..54532f2 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -78,7 +78,6 @@ config MIPS
 	select RTC_LIB
 	select SYSCTL_EXCEPTION_TRACE
 	select VIRT_TO_BUS
-	select NO_BOOTMEM
 
 menu "Machine selection"
 
diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index 7068f34..06b1259 100644
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -36,7 +36,6 @@ config NDS32
 	select MODULES_USE_ELF_RELA
 	select OF
 	select OF_EARLY_FLATTREE
-	select NO_BOOTMEM
 	select NO_IOPORT_MAP
 	select RTC_LIB
 	select THREAD_INFO_IN_TASK
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 5ddf272..ebfae50 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -25,7 +25,6 @@ config NIOS2
 	select CPU_NO_EFFICIENT_FFS
 	select HAVE_MEMBLOCK
 	select ARCH_DISCARD_MEMBLOCK
-	select NO_BOOTMEM
 
 config GENERIC_CSUM
 	def_bool y
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index e0081e7..25c6c2e 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -32,7 +32,6 @@ config OPENRISC
 	select HAVE_DEBUG_STACKOVERFLOW
 	select OR1K_PIC
 	select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1
-	select NO_BOOTMEM
 	select ARCH_USE_QUEUED_SPINLOCKS
 	select ARCH_USE_QUEUED_RWLOCKS
 	select OMPIC if SMP
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 8e6d83f..1d6332c 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -16,7 +16,6 @@ config PARISC
 	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
 	select HAVE_MEMBLOCK
-	select NO_BOOTMEM
 	select BUG
 	select BUILDTIME_EXTABLE_SORT
 	select HAVE_PERF_EVENTS
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a806692..304cdce 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -228,7 +228,6 @@ config PPC
 	select MODULES_USE_ELF_RELA
 	select NEED_DMA_MAP_STATE		if PPC64 || NOT_COHERENT_CACHE
 	select NEED_SG_DMA_LENGTH
-	select NO_BOOTMEM
 	select OF
 	select OF_EARLY_FLATTREE
 	select OF_RESERVED_MEM
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index a344980..63301c8 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -34,7 +34,6 @@ config RISCV
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_PERF_EVENTS
 	select IRQ_DOMAIN
-	select NO_BOOTMEM
 	select RISCV_ISA_A if SMP
 	select SPARSE_IRQ
 	select SYSCTL_EXCEPTION_TRACE
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 9a9c7a6..b388e05 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -166,7 +166,6 @@ config S390
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_VIRT_CPU_ACCOUNTING
 	select MODULES_USE_ELF_RELA
-	select NO_BOOTMEM
 	select OLD_SIGACTION
 	select OLD_SIGSUSPEND3
 	select SPARSE_IRQ
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 1fb7b6d..e254226 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -10,7 +10,6 @@ config SUPERH
 	select HAVE_IDE if HAS_IOPORT_MAP
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
-	select NO_BOOTMEM
 	select ARCH_DISCARD_MEMBLOCK
 	select HAVE_OPROFILE
 	select HAVE_GENERIC_DMA_COHERENT
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index e6f2a38..5e8aaee 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -46,7 +46,6 @@ config SPARC
 	select NEED_DMA_MAP_STATE
 	select NEED_SG_DMA_LENGTH
 	select HAVE_MEMBLOCK
-	select NO_BOOTMEM
 
 config SPARC32
 	def_bool !64BIT
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 10c15b8..ce3d562 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -13,7 +13,6 @@ config UML
 	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_MEMBLOCK
-	select NO_BOOTMEM
 	select GENERIC_IRQ_SHOW
 	select GENERIC_CPU_DEVICES
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 6f38f7f..60eae74 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -5,7 +5,6 @@ config UNICORE32
 	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select ARCH_MIGHT_HAVE_PC_SERIO
 	select HAVE_MEMBLOCK
-	select NO_BOOTMEM
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_BZIP2
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e420b2a..859bf9a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -835,9 +835,6 @@ config JAILHOUSE_GUEST
 
 endif #HYPERVISOR_GUEST
 
-config NO_BOOTMEM
-	def_bool y
-
 source "arch/x86/Kconfig.cpu"
 
 config HPET_TIMER
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 04d038f..e4f7d12 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -33,7 +33,6 @@ config XTENSA
 	select HAVE_STACKPROTECTOR
 	select IRQ_DOMAIN
 	select MODULES_USE_ELF_RELA
-	select NO_BOOTMEM
 	select PERF_USE_VMALLOC
 	select VIRT_TO_BUS
 	help
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 4251519..1f005b5 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -26,34 +26,6 @@ extern unsigned long max_pfn;
  */
 extern unsigned long long max_possible_pfn;
 
-#ifndef CONFIG_NO_BOOTMEM
-/**
- * struct bootmem_data - per-node information used by the bootmem allocator
- * @node_min_pfn: the starting physical address of the node's memory
- * @node_low_pfn: the end physical address of the directly addressable memory
- * @node_bootmem_map: is a bitmap pointer - the bits represent all physical
- *		      memory pages (including holes) on the node.
- * @last_end_off: the offset within the page of the end of the last allocation;
- *                if 0, the page used is full
- * @hint_idx: the PFN of the page used with the last allocation;
- *            together with using this with the @last_end_offset field,
- *            a test can be made to see if allocations can be merged
- *            with the page used for the last allocation rather than
- *            using up a full new page.
- * @list: list entry in the linked list ordered by the memory addresses
- */
-typedef struct bootmem_data {
-	unsigned long node_min_pfn;
-	unsigned long node_low_pfn;
-	void *node_bootmem_map;
-	unsigned long last_end_off;
-	unsigned long hint_idx;
-	struct list_head list;
-} bootmem_data_t;
-
-extern bootmem_data_t bootmem_node_data[];
-#endif
-
 extern unsigned long bootmem_bootmap_pages(unsigned long);
 
 extern unsigned long init_bootmem_node(pg_data_t *pgdat,
@@ -125,12 +97,8 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
 				      unsigned long align,
 				      unsigned long goal) __malloc;
 
-#ifdef CONFIG_NO_BOOTMEM
 /* We are using top down, so it is safe to use 0 here */
 #define BOOTMEM_LOW_LIMIT 0
-#else
-#define BOOTMEM_LOW_LIMIT __pa(MAX_DMA_ADDRESS)
-#endif
 
 #ifndef ARCH_LOW_ADDRESS_LIMIT
 #define ARCH_LOW_ADDRESS_LIMIT  0xffffffffUL
@@ -165,7 +133,7 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
 	__alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0)
 
 
-#if defined(CONFIG_HAVE_MEMBLOCK) && defined(CONFIG_NO_BOOTMEM)
+#if defined(CONFIG_HAVE_MEMBLOCK)
 
 /* FIXME: use MEMBLOCK_ALLOC_* variants here */
 #define BOOTMEM_ALLOC_ACCESSIBLE	0
@@ -373,7 +341,7 @@ static inline void __init memblock_free_late(
 {
 	free_bootmem_late(base, size);
 }
-#endif /* defined(CONFIG_HAVE_MEMBLOCK) && defined(CONFIG_NO_BOOTMEM) */
+#endif /* defined(CONFIG_HAVE_MEMBLOCK) */
 
 extern void *alloc_large_system_hash(const char *tablename,
 				     unsigned long bucketsize,
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index d267bce..4179e67 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -632,9 +632,6 @@ typedef struct pglist_data {
 	struct page_ext *node_page_ext;
 #endif
 #endif
-#ifndef CONFIG_NO_BOOTMEM
-	struct bootmem_data *bdata;
-#endif
 #if defined(CONFIG_MEMORY_HOTPLUG) || defined(CONFIG_DEFERRED_STRUCT_PAGE_INIT)
 	/*
 	 * Must be held any time you expect node_start_pfn, node_present_pages
@@ -878,7 +875,7 @@ static inline int is_highmem_idx(enum zone_type idx)
 }
 
 /**
- * is_highmem - helper function to quickly check if a struct zone is a 
+ * is_highmem - helper function to quickly check if a struct zone is a
  *              highmem zone or not.  This is an attempt to keep references
  *              to ZONE_{DMA/NORMAL/HIGHMEM/etc} in general code to a minimum.
  * @zone - pointer to struct zone variable
diff --git a/mm/Kconfig b/mm/Kconfig
index 7bf074b..16ceea0 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -145,9 +145,6 @@ config HAVE_GENERIC_GUP
 config ARCH_DISCARD_MEMBLOCK
 	bool
 
-config NO_BOOTMEM
-	bool
-
 config MEMORY_ISOLATION
 	bool
 
diff --git a/mm/Makefile b/mm/Makefile
index 6485d57..ea53338 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -42,12 +42,7 @@ obj-y			:= filemap.o mempool.o oom_kill.o fadvise.o \
 			   debug.o $(mmu-y)
 
 obj-y += init-mm.o
-
-ifdef CONFIG_NO_BOOTMEM
-	obj-y		+= nobootmem.o
-else
-	obj-y		+= bootmem.o
-endif
+obj-y += nobootmem.o
 
 ifdef CONFIG_MMU
 	obj-$(CONFIG_ADVISE_SYSCALLS)	+= madvise.o
diff --git a/mm/memblock.c b/mm/memblock.c
index f798109..bba8d4e 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1369,7 +1369,6 @@ phys_addr_t __init memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align, i
 	return memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ACCESSIBLE);
 }
 
-#if defined(CONFIG_NO_BOOTMEM)
 /**
  * memblock_virt_alloc_internal - allocate boot memory block
  * @size: size of memory block to be allocated in bytes
@@ -1576,7 +1575,6 @@ void * __init memblock_virt_alloc_try_nid(
 	      __func__, (u64)size, (u64)align, nid, &min_addr, &max_addr);
 	return NULL;
 }
-#endif
 
 /**
  * __memblock_free_early - free boot memory block
-- 
2.7.4



From - Thu Nov 08 21:41:58 2018
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 03/30] mm: remove CONFIG_HAVE_MEMBLOCK
Date: Fri, 14 Sep 2018 15:10:18 +0300
Lines: 674
Approved: news@gmane.org
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Catalin Marinas <catalin.marinas@arm.com>, Palmer Dabbelt <palmer@sifive.com>,
 Russell King <linux@armlinux.org.uk>, Rich Felker <dalias@libc.org>,
 sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org,
 linux-riscv@lists.infradead.org, Jonas Bonn <jonas@southpole.se>,
 linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org,
 Yoshinori Sato <ysato@users.sourceforge.jp>, Jonathan Corbet <corbet@lwn.net>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>, Ingo Molnar <mingo@redhat.com>,
 Geert Uytterhoeven <geert@linux-m68k.org>, Mark Salter <msalter@redhat.com>,
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To: linux-mm@kvack.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ppc.embedded/130760>

All architecures use memblock for early memory management. There is no need
for the CONFIG_HAVE_MEMBLOCK configuration option.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
---
 arch/alpha/Kconfig                  |   1 -
 arch/arc/Kconfig                    |   1 -
 arch/arm/Kconfig                    |   1 -
 arch/arm64/Kconfig                  |   1 -
 arch/c6x/Kconfig                    |   1 -
 arch/h8300/Kconfig                  |   1 -
 arch/hexagon/Kconfig                |   1 -
 arch/ia64/Kconfig                   |   1 -
 arch/m68k/Kconfig                   |   1 -
 arch/microblaze/Kconfig             |   1 -
 arch/mips/Kconfig                   |   1 -
 arch/nds32/Kconfig                  |   1 -
 arch/nios2/Kconfig                  |   1 -
 arch/openrisc/Kconfig               |   1 -
 arch/parisc/Kconfig                 |   1 -
 arch/powerpc/Kconfig                |   1 -
 arch/riscv/Kconfig                  |   1 -
 arch/s390/Kconfig                   |   1 -
 arch/sh/Kconfig                     |   1 -
 arch/sparc/Kconfig                  |   1 -
 arch/um/Kconfig                     |   1 -
 arch/unicore32/Kconfig              |   1 -
 arch/x86/Kconfig                    |   1 -
 arch/xtensa/Kconfig                 |   1 -
 drivers/of/fdt.c                    |   2 -
 drivers/of/of_reserved_mem.c        |  13 +----
 drivers/staging/android/ion/Kconfig |   2 +-
 fs/pstore/Kconfig                   |   1 -
 include/linux/bootmem.h             | 112 ------------------------------------
 include/linux/memblock.h            |   2 -
 include/linux/mm.h                  |   2 +-
 lib/Kconfig.debug                   |   3 +-
 mm/Kconfig                          |   5 +-
 mm/Makefile                         |   2 +-
 mm/nobootmem.c                      |   4 --
 mm/page_alloc.c                     |   4 +-
 36 files changed, 8 insertions(+), 168 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 04de6be..5b4f883 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -31,7 +31,6 @@ config ALPHA
 	select ODD_RT_SIGACTION
 	select OLD_SIGSUSPEND
 	select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
-	select HAVE_MEMBLOCK
 	help
 	  The Alpha is a 64-bit general-purpose processor designed and
 	  marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 04ebead..5260440 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -37,7 +37,6 @@ config ARC
 	select HAVE_KERNEL_LZMA
 	select HAVE_KPROBES
 	select HAVE_KRETPROBES
-	select HAVE_MEMBLOCK
 	select HAVE_MOD_ARCH_SPECIFIC
 	select HAVE_OPROFILE
 	select HAVE_PERF_EVENTS
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a961d70..33f4653 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -82,7 +82,6 @@ config ARM
 	select HAVE_KERNEL_XZ
 	select HAVE_KPROBES if !XIP_KERNEL && !CPU_ENDIAN_BE32 && !CPU_V7M
 	select HAVE_KRETPROBES if (HAVE_KPROBES)
-	select HAVE_MEMBLOCK
 	select HAVE_MOD_ARCH_SPECIFIC
 	select HAVE_NMI
 	select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 1795eaa..23ae619 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -134,7 +134,6 @@ config ARM64
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS
 	select HAVE_IRQ_TIME_ACCOUNTING
-	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP if NUMA
 	select HAVE_NMI
 	select HAVE_PATA_PLATFORM
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index a641b0b..833fdb0 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -13,7 +13,6 @@ config C6X
 	select GENERIC_ATOMIC64
 	select GENERIC_IRQ_SHOW
 	select HAVE_ARCH_TRACEHOOK
-	select HAVE_MEMBLOCK
 	select SPARSE_IRQ
 	select IRQ_DOMAIN
 	select OF
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 5e89d40..d19c6b16 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -15,7 +15,6 @@ config H8300
 	select OF
 	select OF_IRQ
 	select OF_EARLY_FLATTREE
-	select HAVE_MEMBLOCK
 	select TIMER_OF
 	select H8300_TMR8
 	select HAVE_KERNEL_GZIP
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 24a6da9..d9ae82b 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -31,7 +31,6 @@ config HEXAGON
 	select GENERIC_CLOCKEVENTS_BROADCAST
 	select MODULES_USE_ELF_RELA
 	select GENERIC_CPU_DEVICES
-	select HAVE_MEMBLOCK
 	select ARCH_DISCARD_MEMBLOCK
 	---help---
 	  Qualcomm Hexagon is a processor architecture designed for high
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 2bf4ef7..36773de 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -26,7 +26,6 @@ config IA64
 	select HAVE_FUNCTION_TRACER
 	select TTY
 	select HAVE_ARCH_TRACEHOOK
-	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_VIRT_CPU_ACCOUNTING
 	select ARCH_HAS_DMA_MARK_CLEAN
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 8c7111d..e88588b 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -27,7 +27,6 @@ config M68K
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
 	select DMA_NONCOHERENT_OPS if HAS_DMA
-	select HAVE_MEMBLOCK
 	select ARCH_DISCARD_MEMBLOCK
 
 config CPU_BIG_ENDIAN
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 56379b9..c77eaef 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -28,7 +28,6 @@ config MICROBLAZE
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FUNCTION_TRACER
-	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_OPROFILE
 	select IRQ_DOMAIN
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 54532f2..3484768 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -60,7 +60,6 @@ config MIPS
 	select HAVE_IRQ_TIME_ACCOUNTING
 	select HAVE_KPROBES
 	select HAVE_KRETPROBES
-	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_MOD_ARCH_SPECIFIC
 	select HAVE_NMI
diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index 06b1259..605d148 100644
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -29,7 +29,6 @@ config NDS32
 	select HANDLE_DOMAIN_IRQ
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_DEBUG_KMEMLEAK
-	select HAVE_MEMBLOCK
 	select HAVE_REGS_AND_STACK_ACCESS_API
 	select IRQ_DOMAIN
 	select LOCKDEP_SUPPORT
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index ebfae50..6f43bc4 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -23,7 +23,6 @@ config NIOS2
 	select SPARSE_IRQ
 	select USB_ARCH_HAS_HCD if USB_SUPPORT
 	select CPU_NO_EFFICIENT_FFS
-	select HAVE_MEMBLOCK
 	select ARCH_DISCARD_MEMBLOCK
 
 config GENERIC_CSUM
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 25c6c2e..2ba6c6d 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -12,7 +12,6 @@ config OPENRISC
 	select OF_EARLY_FLATTREE
 	select IRQ_DOMAIN
 	select HANDLE_DOMAIN_IRQ
-	select HAVE_MEMBLOCK
 	select GPIOLIB
         select HAVE_ARCH_TRACEHOOK
 	select SPARSE_IRQ
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 1d6332c..c8a6fda 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -15,7 +15,6 @@ config PARISC
 	select RTC_CLASS
 	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
-	select HAVE_MEMBLOCK
 	select BUG
 	select BUILDTIME_EXTABLE_SORT
 	select HAVE_PERF_EVENTS
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 304cdce..47c16ae 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -203,7 +203,6 @@ config PPC
 	select HAVE_KRETPROBES
 	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
 	select HAVE_LIVEPATCH			if HAVE_DYNAMIC_FTRACE_WITH_REGS
-	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_MOD_ARCH_SPECIFIC
 	select HAVE_NMI				if PERF_EVENTS || (PPC64 && PPC_BOOK3S)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 63301c8..b92ee2f 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -28,7 +28,6 @@ config RISCV
 	select GENERIC_STRNLEN_USER
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_ATOMIC64 if !64BIT || !RISCV_ISA_A
-	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_DMA_CONTIGUOUS
 	select HAVE_GENERIC_DMA_COHERENT
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index b388e05..2ccad0b 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -154,7 +154,6 @@ config S390
 	select HAVE_LIVEPATCH
 	select HAVE_PERF_REGS
 	select HAVE_PERF_USER_STACK_DUMP
-	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_MEMBLOCK_PHYS_MAP
 	select HAVE_MOD_ARCH_SPECIFIC
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index e254226..f89a172 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -8,7 +8,6 @@ config SUPERH
 	select HAVE_PATA_PLATFORM
 	select CLKDEV_LOOKUP
 	select HAVE_IDE if HAS_IOPORT_MAP
-	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select ARCH_DISCARD_MEMBLOCK
 	select HAVE_OPROFILE
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 5e8aaee..3b2a2f3 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -45,7 +45,6 @@ config SPARC
 	select LOCKDEP_SMALL if LOCKDEP
 	select NEED_DMA_MAP_STATE
 	select NEED_SG_DMA_LENGTH
-	select HAVE_MEMBLOCK
 
 config SPARC32
 	def_bool !64BIT
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index ce3d562..6b99389 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -12,7 +12,6 @@ config UML
 	select HAVE_UID16
 	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select HAVE_DEBUG_KMEMLEAK
-	select HAVE_MEMBLOCK
 	select GENERIC_IRQ_SHOW
 	select GENERIC_CPU_DEVICES
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 60eae74..8726acd 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -4,7 +4,6 @@ config UNICORE32
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select ARCH_MIGHT_HAVE_PC_SERIO
-	select HAVE_MEMBLOCK
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_BZIP2
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 859bf9a..13b10cd 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -167,7 +167,6 @@ config X86
 	select HAVE_KRETPROBES
 	select HAVE_KVM
 	select HAVE_LIVEPATCH			if X86_64
-	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_MIXED_BREAKPOINTS_REGS
 	select HAVE_MOD_ARCH_SPECIFIC
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index e4f7d12..2f7c086 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -27,7 +27,6 @@ config XTENSA
 	select HAVE_FUTEX_CMPXCHG if !MMU
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS
 	select HAVE_IRQ_TIME_ACCOUNTING
-	select HAVE_MEMBLOCK
 	select HAVE_OPROFILE
 	select HAVE_PERF_EVENTS
 	select HAVE_STACKPROTECTOR
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 76c83c1..bd841bb 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -1115,13 +1115,11 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
 	return 1;
 }
 
-#ifdef CONFIG_HAVE_MEMBLOCK
 #ifndef MIN_MEMBLOCK_ADDR
 #define MIN_MEMBLOCK_ADDR	__pa(PAGE_OFFSET)
 #endif
 #ifndef MAX_MEMBLOCK_ADDR
 #define MAX_MEMBLOCK_ADDR	((phys_addr_t)~0)
-#endif
 
 void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size)
 {
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index 895c83e..d6255c2 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -20,13 +20,12 @@
 #include <linux/of_reserved_mem.h>
 #include <linux/sort.h>
 #include <linux/slab.h>
+#include <linux/memblock.h>
 
 #define MAX_RESERVED_REGIONS	32
 static struct reserved_mem reserved_mem[MAX_RESERVED_REGIONS];
 static int reserved_mem_count;
 
-#if defined(CONFIG_HAVE_MEMBLOCK)
-#include <linux/memblock.h>
 int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
 	phys_addr_t align, phys_addr_t start, phys_addr_t end, bool nomap,
 	phys_addr_t *res_base)
@@ -54,16 +53,6 @@ int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
 		return memblock_remove(base, size);
 	return 0;
 }
-#else
-int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
-	phys_addr_t align, phys_addr_t start, phys_addr_t end, bool nomap,
-	phys_addr_t *res_base)
-{
-	pr_err("Reserved memory not supported, ignoring region 0x%llx%s\n",
-		  size, nomap ? " (nomap)" : "");
-	return -ENOSYS;
-}
-#endif
 
 /**
  * res_mem_save_node() - save fdt node for second pass initialization
diff --git a/drivers/staging/android/ion/Kconfig b/drivers/staging/android/ion/Kconfig
index c16dd16..0fdda6f 100644
--- a/drivers/staging/android/ion/Kconfig
+++ b/drivers/staging/android/ion/Kconfig
@@ -1,6 +1,6 @@
 menuconfig ION
 	bool "Ion Memory Manager"
-	depends on HAVE_MEMBLOCK && HAS_DMA && MMU
+	depends on HAS_DMA && MMU
 	select GENERIC_ALLOCATOR
 	select DMA_SHARED_BUFFER
 	help
diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig
index 503086f..0d19d19 100644
--- a/fs/pstore/Kconfig
+++ b/fs/pstore/Kconfig
@@ -141,7 +141,6 @@ config PSTORE_RAM
 	tristate "Log panic/oops to a RAM buffer"
 	depends on PSTORE
 	depends on HAS_IOMEM
-	depends on HAVE_MEMBLOCK
 	select REED_SOLOMON
 	select REED_SOLOMON_ENC8
 	select REED_SOLOMON_DEC8
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 1f005b5..ee61ac3 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -132,9 +132,6 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
 #define alloc_bootmem_low_pages_node(pgdat, x) \
 	__alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0)
 
-
-#if defined(CONFIG_HAVE_MEMBLOCK)
-
 /* FIXME: use MEMBLOCK_ALLOC_* variants here */
 #define BOOTMEM_ALLOC_ACCESSIBLE	0
 #define BOOTMEM_ALLOC_ANYWHERE		(~(phys_addr_t)0)
@@ -234,115 +231,6 @@ static inline void __init memblock_free_late(
 	__memblock_free_late(base, size);
 }
 
-#else
-
-#define BOOTMEM_ALLOC_ACCESSIBLE	0
-
-
-/* Fall back to all the existing bootmem APIs */
-static inline void * __init memblock_virt_alloc(
-					phys_addr_t size,  phys_addr_t align)
-{
-	if (!align)
-		align = SMP_CACHE_BYTES;
-	return __alloc_bootmem(size, align, BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_raw(
-					phys_addr_t size,  phys_addr_t align)
-{
-	if (!align)
-		align = SMP_CACHE_BYTES;
-	return __alloc_bootmem_nopanic(size, align, BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_nopanic(
-					phys_addr_t size, phys_addr_t align)
-{
-	if (!align)
-		align = SMP_CACHE_BYTES;
-	return __alloc_bootmem_nopanic(size, align, BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_low(
-					phys_addr_t size, phys_addr_t align)
-{
-	if (!align)
-		align = SMP_CACHE_BYTES;
-	return __alloc_bootmem_low(size, align, 0);
-}
-
-static inline void * __init memblock_virt_alloc_low_nopanic(
-					phys_addr_t size, phys_addr_t align)
-{
-	if (!align)
-		align = SMP_CACHE_BYTES;
-	return __alloc_bootmem_low_nopanic(size, align, 0);
-}
-
-static inline void * __init memblock_virt_alloc_from_nopanic(
-		phys_addr_t size, phys_addr_t align, phys_addr_t min_addr)
-{
-	return __alloc_bootmem_nopanic(size, align, min_addr);
-}
-
-static inline void * __init memblock_virt_alloc_node(
-						phys_addr_t size, int nid)
-{
-	return __alloc_bootmem_node(NODE_DATA(nid), size, SMP_CACHE_BYTES,
-				     BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_node_nopanic(
-						phys_addr_t size, int nid)
-{
-	return __alloc_bootmem_node_nopanic(NODE_DATA(nid), size,
-					     SMP_CACHE_BYTES,
-					     BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_try_nid(phys_addr_t size,
-	phys_addr_t align, phys_addr_t min_addr, phys_addr_t max_addr, int nid)
-{
-	return __alloc_bootmem_node_high(NODE_DATA(nid), size, align,
-					  min_addr);
-}
-
-static inline void * __init memblock_virt_alloc_try_nid_raw(
-			phys_addr_t size, phys_addr_t align,
-			phys_addr_t min_addr, phys_addr_t max_addr, int nid)
-{
-	return ___alloc_bootmem_node_nopanic(NODE_DATA(nid), size, align,
-				min_addr, max_addr);
-}
-
-static inline void * __init memblock_virt_alloc_try_nid_nopanic(
-			phys_addr_t size, phys_addr_t align,
-			phys_addr_t min_addr, phys_addr_t max_addr, int nid)
-{
-	return ___alloc_bootmem_node_nopanic(NODE_DATA(nid), size, align,
-				min_addr, max_addr);
-}
-
-static inline void __init memblock_free_early(
-					phys_addr_t base, phys_addr_t size)
-{
-	free_bootmem(base, size);
-}
-
-static inline void __init memblock_free_early_nid(
-				phys_addr_t base, phys_addr_t size, int nid)
-{
-	free_bootmem_node(NODE_DATA(nid), base, size);
-}
-
-static inline void __init memblock_free_late(
-					phys_addr_t base, phys_addr_t size)
-{
-	free_bootmem_late(base, size);
-}
-#endif /* defined(CONFIG_HAVE_MEMBLOCK) */
-
 extern void *alloc_large_system_hash(const char *tablename,
 				     unsigned long bucketsize,
 				     unsigned long numentries,
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 5169205..4ae91fc 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -2,7 +2,6 @@
 #define _LINUX_MEMBLOCK_H
 #ifdef __KERNEL__
 
-#ifdef CONFIG_HAVE_MEMBLOCK
 /*
  * Logical memory blocks.
  *
@@ -460,7 +459,6 @@ static inline phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align)
 {
 	return 0;
 }
-#endif /* CONFIG_HAVE_MEMBLOCK */
 
 #endif /* __KERNEL__ */
 
diff --git a/include/linux/mm.h b/include/linux/mm.h
index d63d163f..06d7d75 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2143,7 +2143,7 @@ extern int __meminit __early_pfn_to_nid(unsigned long pfn,
 					struct mminit_pfnnid_cache *state);
 #endif
 
-#if defined(CONFIG_HAVE_MEMBLOCK) && !defined(CONFIG_FLAT_NODE_MEM_MAP)
+#if !defined(CONFIG_FLAT_NODE_MEM_MAP)
 void zero_resv_unavail(void);
 #else
 static inline void zero_resv_unavail(void) {}
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 121d869..321117f 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1311,7 +1311,7 @@ config DEBUG_KOBJECT
 	depends on DEBUG_KERNEL
 	help
 	  If you say Y here, some extra kobject debugging messages will be sent
-	  to the syslog. 
+	  to the syslog.
 
 config DEBUG_KOBJECT_RELEASE
 	bool "kobject release debugging"
@@ -1988,7 +1988,6 @@ endif # RUNTIME_TESTING_MENU
 
 config MEMTEST
 	bool "Memtest"
-	depends on HAVE_MEMBLOCK
 	---help---
 	  This option adds a kernel parameter 'memtest', which allows memtest
 	  to be set.
diff --git a/mm/Kconfig b/mm/Kconfig
index 16ceea0..c6a0d82 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -127,9 +127,6 @@ config SPARSEMEM_VMEMMAP
 	 pfn_to_page and page_to_pfn operations.  This is the most
 	 efficient option when sufficient kernel resources are available.
 
-config HAVE_MEMBLOCK
-	bool
-
 config HAVE_MEMBLOCK_NODE_MAP
 	bool
 
@@ -481,7 +478,7 @@ config FRONTSWAP
 
 config CMA
 	bool "Contiguous Memory Allocator"
-	depends on HAVE_MEMBLOCK && MMU
+	depends on MMU
 	select MIGRATION
 	select MEMORY_ISOLATION
 	help
diff --git a/mm/Makefile b/mm/Makefile
index ea53338..ca3c844 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -43,11 +43,11 @@ obj-y			:= filemap.o mempool.o oom_kill.o fadvise.o \
 
 obj-y += init-mm.o
 obj-y += nobootmem.o
+obj-y += memblock.o
 
 ifdef CONFIG_MMU
 	obj-$(CONFIG_ADVISE_SYSCALLS)	+= madvise.o
 endif
-obj-$(CONFIG_HAVE_MEMBLOCK) += memblock.o
 
 obj-$(CONFIG_SWAP)	+= page_io.o swap_state.o swapfile.o swap_slots.o
 obj-$(CONFIG_FRONTSWAP)	+= frontswap.o
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 439af3b..d4d0cd4 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -23,10 +23,6 @@
 
 #include "internal.h"
 
-#ifndef CONFIG_HAVE_MEMBLOCK
-#error CONFIG_HAVE_MEMBLOCK not defined
-#endif
-
 #ifndef CONFIG_NEED_MULTIPLE_NODES
 struct pglist_data __refdata contig_page_data;
 EXPORT_SYMBOL(contig_page_data);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 712cab1..3f3094d 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6432,7 +6432,7 @@ void __init free_area_init_node(int nid, unsigned long *zones_size,
 	free_area_init_core(pgdat);
 }
 
-#if defined(CONFIG_HAVE_MEMBLOCK) && !defined(CONFIG_FLAT_NODE_MEM_MAP)
+#if !defined(CONFIG_FLAT_NODE_MEM_MAP)
 /*
  * Only struct pages that are backed by physical memory are zeroed and
  * initialized by going through __init_single_page(). But, there are some
@@ -6473,7 +6473,7 @@ void __init zero_resv_unavail(void)
 	if (pgcnt)
 		pr_info("Reserved but unavailable: %lld pages", pgcnt);
 }
-#endif /* CONFIG_HAVE_MEMBLOCK && !CONFIG_FLAT_NODE_MEM_MAP */
+#endif /* !CONFIG_FLAT_NODE_MEM_MAP */
 
 #ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
 
-- 
2.7.4



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Subject: [PATCH 04/30] mm: remove bootmem allocator implementation.
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All architectures have been converted to use MEMBLOCK + NO_BOOTMEM. The
bootmem allocator implementation can be removed.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 include/linux/bootmem.h |  16 -
 mm/bootmem.c            | 811 ------------------------------------------------
 2 files changed, 827 deletions(-)
 delete mode 100644 mm/bootmem.c

diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index ee61ac3..fce6278 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -26,14 +26,6 @@ extern unsigned long max_pfn;
  */
 extern unsigned long long max_possible_pfn;
 
-extern unsigned long bootmem_bootmap_pages(unsigned long);
-
-extern unsigned long init_bootmem_node(pg_data_t *pgdat,
-				       unsigned long freepfn,
-				       unsigned long startpfn,
-				       unsigned long endpfn);
-extern unsigned long init_bootmem(unsigned long addr, unsigned long memend);
-
 extern unsigned long free_all_bootmem(void);
 extern void reset_node_managed_pages(pg_data_t *pgdat);
 extern void reset_all_zones_managed_pages(void);
@@ -55,14 +47,6 @@ extern void free_bootmem_late(unsigned long physaddr, unsigned long size);
 #define BOOTMEM_DEFAULT		0
 #define BOOTMEM_EXCLUSIVE	(1<<0)
 
-extern int reserve_bootmem(unsigned long addr,
-			   unsigned long size,
-			   int flags);
-extern int reserve_bootmem_node(pg_data_t *pgdat,
-				unsigned long physaddr,
-				unsigned long size,
-				int flags);
-
 extern void *__alloc_bootmem(unsigned long size,
 			     unsigned long align,
 			     unsigned long goal);
diff --git a/mm/bootmem.c b/mm/bootmem.c
deleted file mode 100644
index 97db0e8..0000000
--- a/mm/bootmem.c
+++ /dev/null
@@ -1,811 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *  bootmem - A boot-time physical memory allocator and configurator
- *
- *  Copyright (C) 1999 Ingo Molnar
- *                1999 Kanoj Sarcar, SGI
- *                2008 Johannes Weiner
- *
- * Access to this subsystem has to be serialized externally (which is true
- * for the boot process anyway).
- */
-#include <linux/init.h>
-#include <linux/pfn.h>
-#include <linux/slab.h>
-#include <linux/export.h>
-#include <linux/kmemleak.h>
-#include <linux/range.h>
-#include <linux/bug.h>
-#include <linux/io.h>
-#include <linux/bootmem.h>
-
-#include "internal.h"
-
-/**
- * DOC: bootmem overview
- *
- * Bootmem is a boot-time physical memory allocator and configurator.
- *
- * It is used early in the boot process before the page allocator is
- * set up.
- *
- * Bootmem is based on the most basic of allocators, a First Fit
- * allocator which uses a bitmap to represent memory. If a bit is 1,
- * the page is allocated and 0 if unallocated. To satisfy allocations
- * of sizes smaller than a page, the allocator records the Page Frame
- * Number (PFN) of the last allocation and the offset the allocation
- * ended at. Subsequent small allocations are merged together and
- * stored on the same page.
- *
- * The information used by the bootmem allocator is represented by
- * :c:type:`struct bootmem_data`. An array to hold up to %MAX_NUMNODES
- * such structures is statically allocated and then it is discarded
- * when the system initialization completes. Each entry in this array
- * corresponds to a node with memory. For UMA systems only entry 0 is
- * used.
- *
- * The bootmem allocator is initialized during early architecture
- * specific setup. Each architecture is required to supply a
- * :c:func:`setup_arch` function which, among other tasks, is
- * responsible for acquiring the necessary parameters to initialise
- * the boot memory allocator. These parameters define limits of usable
- * physical memory:
- *
- * * @min_low_pfn - the lowest PFN that is available in the system
- * * @max_low_pfn - the highest PFN that may be addressed by low
- *   memory (%ZONE_NORMAL)
- * * @max_pfn - the last PFN available to the system.
- *
- * After those limits are determined, the :c:func:`init_bootmem` or
- * :c:func:`init_bootmem_node` function should be called to initialize
- * the bootmem allocator. The UMA case should use the `init_bootmem`
- * function. It will initialize ``contig_page_data`` structure that
- * represents the only memory node in the system. In the NUMA case the
- * `init_bootmem_node` function should be called to initialize the
- * bootmem allocator for each node.
- *
- * Once the allocator is set up, it is possible to use either single
- * node or NUMA variant of the allocation APIs.
- */
-
-#ifndef CONFIG_NEED_MULTIPLE_NODES
-struct pglist_data __refdata contig_page_data = {
-	.bdata = &bootmem_node_data[0]
-};
-EXPORT_SYMBOL(contig_page_data);
-#endif
-
-unsigned long max_low_pfn;
-unsigned long min_low_pfn;
-unsigned long max_pfn;
-unsigned long long max_possible_pfn;
-
-bootmem_data_t bootmem_node_data[MAX_NUMNODES] __initdata;
-
-static struct list_head bdata_list __initdata = LIST_HEAD_INIT(bdata_list);
-
-static int bootmem_debug;
-
-static int __init bootmem_debug_setup(char *buf)
-{
-	bootmem_debug = 1;
-	return 0;
-}
-early_param("bootmem_debug", bootmem_debug_setup);
-
-#define bdebug(fmt, args...) ({				\
-	if (unlikely(bootmem_debug))			\
-		pr_info("bootmem::%s " fmt,		\
-			__func__, ## args);		\
-})
-
-static unsigned long __init bootmap_bytes(unsigned long pages)
-{
-	unsigned long bytes = DIV_ROUND_UP(pages, BITS_PER_BYTE);
-
-	return ALIGN(bytes, sizeof(long));
-}
-
-/**
- * bootmem_bootmap_pages - calculate bitmap size in pages
- * @pages: number of pages the bitmap has to represent
- *
- * Return: the number of pages needed to hold the bitmap.
- */
-unsigned long __init bootmem_bootmap_pages(unsigned long pages)
-{
-	unsigned long bytes = bootmap_bytes(pages);
-
-	return PAGE_ALIGN(bytes) >> PAGE_SHIFT;
-}
-
-/*
- * link bdata in order
- */
-static void __init link_bootmem(bootmem_data_t *bdata)
-{
-	bootmem_data_t *ent;
-
-	list_for_each_entry(ent, &bdata_list, list) {
-		if (bdata->node_min_pfn < ent->node_min_pfn) {
-			list_add_tail(&bdata->list, &ent->list);
-			return;
-		}
-	}
-
-	list_add_tail(&bdata->list, &bdata_list);
-}
-
-/*
- * Called once to set up the allocator itself.
- */
-static unsigned long __init init_bootmem_core(bootmem_data_t *bdata,
-	unsigned long mapstart, unsigned long start, unsigned long end)
-{
-	unsigned long mapsize;
-
-	mminit_validate_memmodel_limits(&start, &end);
-	bdata->node_bootmem_map = phys_to_virt(PFN_PHYS(mapstart));
-	bdata->node_min_pfn = start;
-	bdata->node_low_pfn = end;
-	link_bootmem(bdata);
-
-	/*
-	 * Initially all pages are reserved - setup_arch() has to
-	 * register free RAM areas explicitly.
-	 */
-	mapsize = bootmap_bytes(end - start);
-	memset(bdata->node_bootmem_map, 0xff, mapsize);
-
-	bdebug("nid=%td start=%lx map=%lx end=%lx mapsize=%lx\n",
-		bdata - bootmem_node_data, start, mapstart, end, mapsize);
-
-	return mapsize;
-}
-
-/**
- * init_bootmem_node - register a node as boot memory
- * @pgdat: node to register
- * @freepfn: pfn where the bitmap for this node is to be placed
- * @startpfn: first pfn on the node
- * @endpfn: first pfn after the node
- *
- * Return: the number of bytes needed to hold the bitmap for this node.
- */
-unsigned long __init init_bootmem_node(pg_data_t *pgdat, unsigned long freepfn,
-				unsigned long startpfn, unsigned long endpfn)
-{
-	return init_bootmem_core(pgdat->bdata, freepfn, startpfn, endpfn);
-}
-
-/**
- * init_bootmem - register boot memory
- * @start: pfn where the bitmap is to be placed
- * @pages: number of available physical pages
- *
- * Return: the number of bytes needed to hold the bitmap.
- */
-unsigned long __init init_bootmem(unsigned long start, unsigned long pages)
-{
-	max_low_pfn = pages;
-	min_low_pfn = start;
-	return init_bootmem_core(NODE_DATA(0)->bdata, start, 0, pages);
-}
-
-void __init free_bootmem_late(unsigned long physaddr, unsigned long size)
-{
-	unsigned long cursor, end;
-
-	kmemleak_free_part_phys(physaddr, size);
-
-	cursor = PFN_UP(physaddr);
-	end = PFN_DOWN(physaddr + size);
-
-	for (; cursor < end; cursor++) {
-		__free_pages_bootmem(pfn_to_page(cursor), cursor, 0);
-		totalram_pages++;
-	}
-}
-
-static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
-{
-	struct page *page;
-	unsigned long *map, start, end, pages, cur, count = 0;
-
-	if (!bdata->node_bootmem_map)
-		return 0;
-
-	map = bdata->node_bootmem_map;
-	start = bdata->node_min_pfn;
-	end = bdata->node_low_pfn;
-
-	bdebug("nid=%td start=%lx end=%lx\n",
-		bdata - bootmem_node_data, start, end);
-
-	while (start < end) {
-		unsigned long idx, vec;
-		unsigned shift;
-
-		idx = start - bdata->node_min_pfn;
-		shift = idx & (BITS_PER_LONG - 1);
-		/*
-		 * vec holds at most BITS_PER_LONG map bits,
-		 * bit 0 corresponds to start.
-		 */
-		vec = ~map[idx / BITS_PER_LONG];
-
-		if (shift) {
-			vec >>= shift;
-			if (end - start >= BITS_PER_LONG)
-				vec |= ~map[idx / BITS_PER_LONG + 1] <<
-					(BITS_PER_LONG - shift);
-		}
-		/*
-		 * If we have a properly aligned and fully unreserved
-		 * BITS_PER_LONG block of pages in front of us, free
-		 * it in one go.
-		 */
-		if (IS_ALIGNED(start, BITS_PER_LONG) && vec == ~0UL) {
-			int order = ilog2(BITS_PER_LONG);
-
-			__free_pages_bootmem(pfn_to_page(start), start, order);
-			count += BITS_PER_LONG;
-			start += BITS_PER_LONG;
-		} else {
-			cur = start;
-
-			start = ALIGN(start + 1, BITS_PER_LONG);
-			while (vec && cur != start) {
-				if (vec & 1) {
-					page = pfn_to_page(cur);
-					__free_pages_bootmem(page, cur, 0);
-					count++;
-				}
-				vec >>= 1;
-				++cur;
-			}
-		}
-	}
-
-	cur = bdata->node_min_pfn;
-	page = virt_to_page(bdata->node_bootmem_map);
-	pages = bdata->node_low_pfn - bdata->node_min_pfn;
-	pages = bootmem_bootmap_pages(pages);
-	count += pages;
-	while (pages--)
-		__free_pages_bootmem(page++, cur++, 0);
-	bdata->node_bootmem_map = NULL;
-
-	bdebug("nid=%td released=%lx\n", bdata - bootmem_node_data, count);
-
-	return count;
-}
-
-static int reset_managed_pages_done __initdata;
-
-void reset_node_managed_pages(pg_data_t *pgdat)
-{
-	struct zone *z;
-
-	for (z = pgdat->node_zones; z < pgdat->node_zones + MAX_NR_ZONES; z++)
-		z->managed_pages = 0;
-}
-
-void __init reset_all_zones_managed_pages(void)
-{
-	struct pglist_data *pgdat;
-
-	if (reset_managed_pages_done)
-		return;
-
-	for_each_online_pgdat(pgdat)
-		reset_node_managed_pages(pgdat);
-
-	reset_managed_pages_done = 1;
-}
-
-unsigned long __init free_all_bootmem(void)
-{
-	unsigned long total_pages = 0;
-	bootmem_data_t *bdata;
-
-	reset_all_zones_managed_pages();
-
-	list_for_each_entry(bdata, &bdata_list, list)
-		total_pages += free_all_bootmem_core(bdata);
-
-	totalram_pages += total_pages;
-
-	return total_pages;
-}
-
-static void __init __free(bootmem_data_t *bdata,
-			unsigned long sidx, unsigned long eidx)
-{
-	unsigned long idx;
-
-	bdebug("nid=%td start=%lx end=%lx\n", bdata - bootmem_node_data,
-		sidx + bdata->node_min_pfn,
-		eidx + bdata->node_min_pfn);
-
-	if (WARN_ON(bdata->node_bootmem_map == NULL))
-		return;
-
-	if (bdata->hint_idx > sidx)
-		bdata->hint_idx = sidx;
-
-	for (idx = sidx; idx < eidx; idx++)
-		if (!test_and_clear_bit(idx, bdata->node_bootmem_map))
-			BUG();
-}
-
-static int __init __reserve(bootmem_data_t *bdata, unsigned long sidx,
-			unsigned long eidx, int flags)
-{
-	unsigned long idx;
-	int exclusive = flags & BOOTMEM_EXCLUSIVE;
-
-	bdebug("nid=%td start=%lx end=%lx flags=%x\n",
-		bdata - bootmem_node_data,
-		sidx + bdata->node_min_pfn,
-		eidx + bdata->node_min_pfn,
-		flags);
-
-	if (WARN_ON(bdata->node_bootmem_map == NULL))
-		return 0;
-
-	for (idx = sidx; idx < eidx; idx++)
-		if (test_and_set_bit(idx, bdata->node_bootmem_map)) {
-			if (exclusive) {
-				__free(bdata, sidx, idx);
-				return -EBUSY;
-			}
-			bdebug("silent double reserve of PFN %lx\n",
-				idx + bdata->node_min_pfn);
-		}
-	return 0;
-}
-
-static int __init mark_bootmem_node(bootmem_data_t *bdata,
-				unsigned long start, unsigned long end,
-				int reserve, int flags)
-{
-	unsigned long sidx, eidx;
-
-	bdebug("nid=%td start=%lx end=%lx reserve=%d flags=%x\n",
-		bdata - bootmem_node_data, start, end, reserve, flags);
-
-	BUG_ON(start < bdata->node_min_pfn);
-	BUG_ON(end > bdata->node_low_pfn);
-
-	sidx = start - bdata->node_min_pfn;
-	eidx = end - bdata->node_min_pfn;
-
-	if (reserve)
-		return __reserve(bdata, sidx, eidx, flags);
-	else
-		__free(bdata, sidx, eidx);
-	return 0;
-}
-
-static int __init mark_bootmem(unsigned long start, unsigned long end,
-				int reserve, int flags)
-{
-	unsigned long pos;
-	bootmem_data_t *bdata;
-
-	pos = start;
-	list_for_each_entry(bdata, &bdata_list, list) {
-		int err;
-		unsigned long max;
-
-		if (pos < bdata->node_min_pfn ||
-		    pos >= bdata->node_low_pfn) {
-			BUG_ON(pos != start);
-			continue;
-		}
-
-		max = min(bdata->node_low_pfn, end);
-
-		err = mark_bootmem_node(bdata, pos, max, reserve, flags);
-		if (reserve && err) {
-			mark_bootmem(start, pos, 0, 0);
-			return err;
-		}
-
-		if (max == end)
-			return 0;
-		pos = bdata->node_low_pfn;
-	}
-	BUG();
-}
-
-void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
-			      unsigned long size)
-{
-	unsigned long start, end;
-
-	kmemleak_free_part_phys(physaddr, size);
-
-	start = PFN_UP(physaddr);
-	end = PFN_DOWN(physaddr + size);
-
-	mark_bootmem_node(pgdat->bdata, start, end, 0, 0);
-}
-
-void __init free_bootmem(unsigned long physaddr, unsigned long size)
-{
-	unsigned long start, end;
-
-	kmemleak_free_part_phys(physaddr, size);
-
-	start = PFN_UP(physaddr);
-	end = PFN_DOWN(physaddr + size);
-
-	mark_bootmem(start, end, 0, 0);
-}
-
-/**
- * reserve_bootmem_node - mark a page range as reserved
- * @pgdat: node the range resides on
- * @physaddr: starting address of the range
- * @size: size of the range in bytes
- * @flags: reservation flags (see linux/bootmem.h)
- *
- * Partial pages will be reserved.
- *
- * The range must reside completely on the specified node.
- *
- * Return: 0 on success, -errno on failure.
- */
-int __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
-				 unsigned long size, int flags)
-{
-	unsigned long start, end;
-
-	start = PFN_DOWN(physaddr);
-	end = PFN_UP(physaddr + size);
-
-	return mark_bootmem_node(pgdat->bdata, start, end, 1, flags);
-}
-
-/**
- * reserve_bootmem - mark a page range as reserved
- * @addr: starting address of the range
- * @size: size of the range in bytes
- * @flags: reservation flags (see linux/bootmem.h)
- *
- * Partial pages will be reserved.
- *
- * The range must be contiguous but may span node boundaries.
- *
- * Return: 0 on success, -errno on failure.
- */
-int __init reserve_bootmem(unsigned long addr, unsigned long size,
-			    int flags)
-{
-	unsigned long start, end;
-
-	start = PFN_DOWN(addr);
-	end = PFN_UP(addr + size);
-
-	return mark_bootmem(start, end, 1, flags);
-}
-
-static unsigned long __init align_idx(struct bootmem_data *bdata,
-				      unsigned long idx, unsigned long step)
-{
-	unsigned long base = bdata->node_min_pfn;
-
-	/*
-	 * Align the index with respect to the node start so that the
-	 * combination of both satisfies the requested alignment.
-	 */
-
-	return ALIGN(base + idx, step) - base;
-}
-
-static unsigned long __init align_off(struct bootmem_data *bdata,
-				      unsigned long off, unsigned long align)
-{
-	unsigned long base = PFN_PHYS(bdata->node_min_pfn);
-
-	/* Same as align_idx for byte offsets */
-
-	return ALIGN(base + off, align) - base;
-}
-
-static void * __init alloc_bootmem_bdata(struct bootmem_data *bdata,
-					unsigned long size, unsigned long align,
-					unsigned long goal, unsigned long limit)
-{
-	unsigned long fallback = 0;
-	unsigned long min, max, start, sidx, midx, step;
-
-	bdebug("nid=%td size=%lx [%lu pages] align=%lx goal=%lx limit=%lx\n",
-		bdata - bootmem_node_data, size, PAGE_ALIGN(size) >> PAGE_SHIFT,
-		align, goal, limit);
-
-	BUG_ON(!size);
-	BUG_ON(align & (align - 1));
-	BUG_ON(limit && goal + size > limit);
-
-	if (!bdata->node_bootmem_map)
-		return NULL;
-
-	min = bdata->node_min_pfn;
-	max = bdata->node_low_pfn;
-
-	goal >>= PAGE_SHIFT;
-	limit >>= PAGE_SHIFT;
-
-	if (limit && max > limit)
-		max = limit;
-	if (max <= min)
-		return NULL;
-
-	step = max(align >> PAGE_SHIFT, 1UL);
-
-	if (goal && min < goal && goal < max)
-		start = ALIGN(goal, step);
-	else
-		start = ALIGN(min, step);
-
-	sidx = start - bdata->node_min_pfn;
-	midx = max - bdata->node_min_pfn;
-
-	if (bdata->hint_idx > sidx) {
-		/*
-		 * Handle the valid case of sidx being zero and still
-		 * catch the fallback below.
-		 */
-		fallback = sidx + 1;
-		sidx = align_idx(bdata, bdata->hint_idx, step);
-	}
-
-	while (1) {
-		int merge;
-		void *region;
-		unsigned long eidx, i, start_off, end_off;
-find_block:
-		sidx = find_next_zero_bit(bdata->node_bootmem_map, midx, sidx);
-		sidx = align_idx(bdata, sidx, step);
-		eidx = sidx + PFN_UP(size);
-
-		if (sidx >= midx || eidx > midx)
-			break;
-
-		for (i = sidx; i < eidx; i++)
-			if (test_bit(i, bdata->node_bootmem_map)) {
-				sidx = align_idx(bdata, i, step);
-				if (sidx == i)
-					sidx += step;
-				goto find_block;
-			}
-
-		if (bdata->last_end_off & (PAGE_SIZE - 1) &&
-				PFN_DOWN(bdata->last_end_off) + 1 == sidx)
-			start_off = align_off(bdata, bdata->last_end_off, align);
-		else
-			start_off = PFN_PHYS(sidx);
-
-		merge = PFN_DOWN(start_off) < sidx;
-		end_off = start_off + size;
-
-		bdata->last_end_off = end_off;
-		bdata->hint_idx = PFN_UP(end_off);
-
-		/*
-		 * Reserve the area now:
-		 */
-		if (__reserve(bdata, PFN_DOWN(start_off) + merge,
-				PFN_UP(end_off), BOOTMEM_EXCLUSIVE))
-			BUG();
-
-		region = phys_to_virt(PFN_PHYS(bdata->node_min_pfn) +
-				start_off);
-		memset(region, 0, size);
-		/*
-		 * The min_count is set to 0 so that bootmem allocated blocks
-		 * are never reported as leaks.
-		 */
-		kmemleak_alloc(region, size, 0, 0);
-		return region;
-	}
-
-	if (fallback) {
-		sidx = align_idx(bdata, fallback - 1, step);
-		fallback = 0;
-		goto find_block;
-	}
-
-	return NULL;
-}
-
-static void * __init alloc_bootmem_core(unsigned long size,
-					unsigned long align,
-					unsigned long goal,
-					unsigned long limit)
-{
-	bootmem_data_t *bdata;
-	void *region;
-
-	if (WARN_ON_ONCE(slab_is_available()))
-		return kzalloc(size, GFP_NOWAIT);
-
-	list_for_each_entry(bdata, &bdata_list, list) {
-		if (goal && bdata->node_low_pfn <= PFN_DOWN(goal))
-			continue;
-		if (limit && bdata->node_min_pfn >= PFN_DOWN(limit))
-			break;
-
-		region = alloc_bootmem_bdata(bdata, size, align, goal, limit);
-		if (region)
-			return region;
-	}
-
-	return NULL;
-}
-
-static void * __init ___alloc_bootmem_nopanic(unsigned long size,
-					      unsigned long align,
-					      unsigned long goal,
-					      unsigned long limit)
-{
-	void *ptr;
-
-restart:
-	ptr = alloc_bootmem_core(size, align, goal, limit);
-	if (ptr)
-		return ptr;
-	if (goal) {
-		goal = 0;
-		goto restart;
-	}
-
-	return NULL;
-}
-
-void * __init __alloc_bootmem_nopanic(unsigned long size, unsigned long align,
-					unsigned long goal)
-{
-	unsigned long limit = 0;
-
-	return ___alloc_bootmem_nopanic(size, align, goal, limit);
-}
-
-static void * __init ___alloc_bootmem(unsigned long size, unsigned long align,
-					unsigned long goal, unsigned long limit)
-{
-	void *mem = ___alloc_bootmem_nopanic(size, align, goal, limit);
-
-	if (mem)
-		return mem;
-	/*
-	 * Whoops, we cannot satisfy the allocation request.
-	 */
-	pr_alert("bootmem alloc of %lu bytes failed!\n", size);
-	panic("Out of memory");
-	return NULL;
-}
-
-void * __init __alloc_bootmem(unsigned long size, unsigned long align,
-			      unsigned long goal)
-{
-	unsigned long limit = 0;
-
-	return ___alloc_bootmem(size, align, goal, limit);
-}
-
-void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
-				unsigned long size, unsigned long align,
-				unsigned long goal, unsigned long limit)
-{
-	void *ptr;
-
-	if (WARN_ON_ONCE(slab_is_available()))
-		return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
-again:
-
-	/* do not panic in alloc_bootmem_bdata() */
-	if (limit && goal + size > limit)
-		limit = 0;
-
-	ptr = alloc_bootmem_bdata(pgdat->bdata, size, align, goal, limit);
-	if (ptr)
-		return ptr;
-
-	ptr = alloc_bootmem_core(size, align, goal, limit);
-	if (ptr)
-		return ptr;
-
-	if (goal) {
-		goal = 0;
-		goto again;
-	}
-
-	return NULL;
-}
-
-void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size,
-				   unsigned long align, unsigned long goal)
-{
-	return ___alloc_bootmem_node_nopanic(pgdat, size, align, goal, 0);
-}
-
-void * __init ___alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
-				    unsigned long align, unsigned long goal,
-				    unsigned long limit)
-{
-	void *ptr;
-
-	ptr = ___alloc_bootmem_node_nopanic(pgdat, size, align, goal, 0);
-	if (ptr)
-		return ptr;
-
-	pr_alert("bootmem alloc of %lu bytes failed!\n", size);
-	panic("Out of memory");
-	return NULL;
-}
-
-void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
-				   unsigned long align, unsigned long goal)
-{
-	if (WARN_ON_ONCE(slab_is_available()))
-		return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
-
-	return  ___alloc_bootmem_node(pgdat, size, align, goal, 0);
-}
-
-void * __init __alloc_bootmem_node_high(pg_data_t *pgdat, unsigned long size,
-				   unsigned long align, unsigned long goal)
-{
-#ifdef MAX_DMA32_PFN
-	unsigned long end_pfn;
-
-	if (WARN_ON_ONCE(slab_is_available()))
-		return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
-
-	/* update goal according ...MAX_DMA32_PFN */
-	end_pfn = pgdat_end_pfn(pgdat);
-
-	if (end_pfn > MAX_DMA32_PFN + (128 >> (20 - PAGE_SHIFT)) &&
-	    (goal >> PAGE_SHIFT) < MAX_DMA32_PFN) {
-		void *ptr;
-		unsigned long new_goal;
-
-		new_goal = MAX_DMA32_PFN << PAGE_SHIFT;
-		ptr = alloc_bootmem_bdata(pgdat->bdata, size, align,
-						 new_goal, 0);
-		if (ptr)
-			return ptr;
-	}
-#endif
-
-	return __alloc_bootmem_node(pgdat, size, align, goal);
-
-}
-
-void * __init __alloc_bootmem_low(unsigned long size, unsigned long align,
-				  unsigned long goal)
-{
-	return ___alloc_bootmem(size, align, goal, ARCH_LOW_ADDRESS_LIMIT);
-}
-
-void * __init __alloc_bootmem_low_nopanic(unsigned long size,
-					  unsigned long align,
-					  unsigned long goal)
-{
-	return ___alloc_bootmem_nopanic(size, align, goal,
-					ARCH_LOW_ADDRESS_LIMIT);
-}
-
-void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size,
-				       unsigned long align, unsigned long goal)
-{
-	if (WARN_ON_ONCE(slab_is_available()))
-		return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
-
-	return ___alloc_bootmem_node(pgdat, size, align,
-				     goal, ARCH_LOW_ADDRESS_LIMIT);
-}
-- 
2.7.4



From - Thu Nov 08 21:41:58 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.ppc.embedded,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel
Subject: [PATCH 05/30] mm: nobootmem: remove dead code
Date: Fri, 14 Sep 2018 15:10:20 +0300
Lines: 118
Approved: news@gmane.org
Message-ID: <1536927045-23536-6-git-send-email-rppt@linux.vnet.ibm.com>
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NNTP-Posting-Date: Fri, 14 Sep 2018 12:24:42 +0000 (UTC)
Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Catalin Marinas <catalin.marinas@arm.com>, Palmer Dabbelt <palmer@sifive.com>,
 Russell King <linux@armlinux.org.uk>, Rich Felker <dalias@libc.org>,
 sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org,
 linux-riscv@lists.infradead.org, Jonas Bonn <jonas@southpole.se>,
 linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org,
 Yoshinori Sato <ysato@users.sourceforge.jp>, Jonathan Corbet <corbet@lwn.net>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>, Ingo Molnar <mingo@redhat.com>,
 Geert Uytterhoeven <geert@linux-m68k.org>, Mark Salter <msalter@redhat.com>,
 Matt Turner <mattst88@gmail.com>, linux-snps-arc@lists.infradead.org,
 uclinux-h8-devel@lists.sourceforge.jp, Mike Rapoport <rppt@linux.vnet.ibm.com>,
 linux-alpha@vger.kernel.org, linux-um@lists.infradead.o
To: linux-mm@kvack.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.ppc.embedded/130762>

Several bootmem functions and macros are not used. Remove them.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
---
 include/linux/bootmem.h | 26 --------------------------
 mm/nobootmem.c          | 35 -----------------------------------
 2 files changed, 61 deletions(-)

diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index fce6278..b74bafd1 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -36,17 +36,6 @@ extern void free_bootmem_node(pg_data_t *pgdat,
 extern void free_bootmem(unsigned long physaddr, unsigned long size);
 extern void free_bootmem_late(unsigned long physaddr, unsigned long size);
 
-/*
- * Flags for reserve_bootmem (also if CONFIG_HAVE_ARCH_BOOTMEM_NODE,
- * the architecture-specific code should honor this).
- *
- * If flags is BOOTMEM_DEFAULT, then the return value is always 0 (success).
- * If flags contains BOOTMEM_EXCLUSIVE, then -EBUSY is returned if the memory
- * already was reserved.
- */
-#define BOOTMEM_DEFAULT		0
-#define BOOTMEM_EXCLUSIVE	(1<<0)
-
 extern void *__alloc_bootmem(unsigned long size,
 			     unsigned long align,
 			     unsigned long goal);
@@ -73,13 +62,6 @@ void *___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
 extern void *__alloc_bootmem_low(unsigned long size,
 				 unsigned long align,
 				 unsigned long goal) __malloc;
-void *__alloc_bootmem_low_nopanic(unsigned long size,
-				 unsigned long align,
-				 unsigned long goal) __malloc;
-extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
-				      unsigned long size,
-				      unsigned long align,
-				      unsigned long goal) __malloc;
 
 /* We are using top down, so it is safe to use 0 here */
 #define BOOTMEM_LOW_LIMIT 0
@@ -92,8 +74,6 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
 	__alloc_bootmem(x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
 #define alloc_bootmem_align(x, align) \
 	__alloc_bootmem(x, align, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_nopanic(x) \
-	__alloc_bootmem_nopanic(x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
 #define alloc_bootmem_pages(x) \
 	__alloc_bootmem(x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
 #define alloc_bootmem_pages_nopanic(x) \
@@ -104,17 +84,11 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
 	__alloc_bootmem_node_nopanic(pgdat, x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
 #define alloc_bootmem_pages_node(pgdat, x) \
 	__alloc_bootmem_node(pgdat, x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_pages_node_nopanic(pgdat, x) \
-	__alloc_bootmem_node_nopanic(pgdat, x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
 
 #define alloc_bootmem_low(x) \
 	__alloc_bootmem_low(x, SMP_CACHE_BYTES, 0)
-#define alloc_bootmem_low_pages_nopanic(x) \
-	__alloc_bootmem_low_nopanic(x, PAGE_SIZE, 0)
 #define alloc_bootmem_low_pages(x) \
 	__alloc_bootmem_low(x, PAGE_SIZE, 0)
-#define alloc_bootmem_low_pages_node(pgdat, x) \
-	__alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0)
 
 /* FIXME: use MEMBLOCK_ALLOC_* variants here */
 #define BOOTMEM_ALLOC_ACCESSIBLE	0
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index d4d0cd4..44ce7de 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -404,38 +404,3 @@ void * __init __alloc_bootmem_low(unsigned long size, unsigned long align,
 {
 	return ___alloc_bootmem(size, align, goal, ARCH_LOW_ADDRESS_LIMIT);
 }
-
-void * __init __alloc_bootmem_low_nopanic(unsigned long size,
-					  unsigned long align,
-					  unsigned long goal)
-{
-	return ___alloc_bootmem_nopanic(size, align, goal,
-					ARCH_LOW_ADDRESS_LIMIT);
-}
-
-/**
- * __alloc_bootmem_low_node - allocate low boot memory from a specific node
- * @pgdat: node to allocate from
- * @size: size of the request in bytes
- * @align: alignment of the region
- * @goal: preferred starting address of the region
- *
- * The goal is dropped if it can not be satisfied and the allocation will
- * fall back to memory below @goal.
- *
- * Allocation may fall back to any node in the system if the specified node
- * can not hold the requested memory.
- *
- * The function panics if the request can not be satisfied.
- *
- * Return: address of the allocated region.
- */
-void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size,
-				       unsigned long align, unsigned long goal)
-{
-	if (WARN_ON_ONCE(slab_is_available()))
-		return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
-
-	return ___alloc_bootmem_node(pgdat, size, align, goal,
-				     ARCH_LOW_ADDRESS_LIMIT);
-}
-- 
2.7.4



From - Thu Nov 08 21:41:58 2018
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 26/30] memblock: rename __free_pages_bootmem to
 memblock_free_pages
Date: Fri, 14 Sep 2018 15:10:41 +0300
Lines: 68
Approved: news@gmane.org
Message-ID: <1536927045-23536-27-git-send-email-rppt@linux.vnet.ibm.com>
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
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Xref: news.gmane.org gmane.linux.ports.riscv:808 gmane.linux.kernel.mm:203344 gmane.linux.ports.mips.general:66646 gmane.linux.ports.ia64:29241 gmane.linux.ports.sh.devel:57517 gmane.linux.ports.sparc:28429 gmane.linux.ports.hexagon:1858 gmane.linux.kernel.arc:4371 gmane.linux.ports.alpha:5247 gmane.linux.ports.arm.kernel:674219 gmane.linux.ports.parisc:28969 gmane.linux.kernel:2870795 gmane.linux.ports.ppc64.devel:162503
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The conversion is done using

sed -i 's@__free_pages_bootmem@memblock_free_pages@' \
    $(git grep -l __free_pages_bootmem)

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 mm/internal.h   | 2 +-
 mm/memblock.c   | 2 +-
 mm/nobootmem.c  | 2 +-
 mm/page_alloc.c | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/mm/internal.h b/mm/internal.h
index 87256ae..291eb2b 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -161,7 +161,7 @@ static inline struct page *pageblock_pfn_to_page(unsigned long start_pfn,
 }
 
 extern int __isolate_free_page(struct page *page, unsigned int order);
-extern void __free_pages_bootmem(struct page *page, unsigned long pfn,
+extern void memblock_free_pages(struct page *page, unsigned long pfn,
 					unsigned int order);
 extern void prep_compound_page(struct page *page, unsigned int order);
 extern void post_alloc_hook(struct page *page, unsigned int order,
diff --git a/mm/memblock.c b/mm/memblock.c
index 1534edb..a2cd61d 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1615,7 +1615,7 @@ void __init __memblock_free_late(phys_addr_t base, phys_addr_t size)
 	end = PFN_DOWN(base + size);
 
 	for (; cursor < end; cursor++) {
-		__free_pages_bootmem(pfn_to_page(cursor), cursor, 0);
+		memblock_free_pages(pfn_to_page(cursor), cursor, 0);
 		totalram_pages++;
 	}
 }
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index bb64b09..9608bc5 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -43,7 +43,7 @@ static void __init __free_pages_memory(unsigned long start, unsigned long end)
 		while (start + (1UL << order) > end)
 			order--;
 
-		__free_pages_bootmem(pfn_to_page(start), start, order);
+		memblock_free_pages(pfn_to_page(start), start, order);
 
 		start += (1UL << order);
 	}
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 13e394c..f4a8bc8 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1334,7 +1334,7 @@ meminit_pfn_in_nid(unsigned long pfn, int node,
 #endif
 
 
-void __init __free_pages_bootmem(struct page *page, unsigned long pfn,
+void __init memblock_free_pages(struct page *page, unsigned long pfn,
 							unsigned int order)
 {
 	if (early_page_uninitialised(pfn))
-- 
2.7.4

From - Thu Nov 08 21:41:58 2018
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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 25/30] memblock: rename free_all_bootmem to memblock_free_all
Date: Fri, 14 Sep 2018 15:10:40 +0300
Lines: 530
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/809>

The conversion is done using

sed -i 's@free_all_bootmem@memblock_free_all@' \
    $(git grep -l free_all_bootmem)

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/alpha/mm/init.c                   | 2 +-
 arch/arc/mm/init.c                     | 2 +-
 arch/arm/mm/init.c                     | 2 +-
 arch/arm64/mm/init.c                   | 2 +-
 arch/c6x/mm/init.c                     | 2 +-
 arch/h8300/mm/init.c                   | 2 +-
 arch/hexagon/mm/init.c                 | 2 +-
 arch/ia64/mm/init.c                    | 2 +-
 arch/m68k/mm/init.c                    | 2 +-
 arch/microblaze/mm/init.c              | 2 +-
 arch/mips/loongson64/loongson-3/numa.c | 2 +-
 arch/mips/mm/init.c                    | 2 +-
 arch/mips/sgi-ip27/ip27-memory.c       | 2 +-
 arch/nds32/mm/init.c                   | 2 +-
 arch/nios2/mm/init.c                   | 2 +-
 arch/openrisc/mm/init.c                | 2 +-
 arch/parisc/mm/init.c                  | 2 +-
 arch/powerpc/mm/mem.c                  | 2 +-
 arch/riscv/mm/init.c                   | 2 +-
 arch/s390/mm/init.c                    | 2 +-
 arch/sh/mm/init.c                      | 2 +-
 arch/sparc/mm/init_32.c                | 2 +-
 arch/sparc/mm/init_64.c                | 4 ++--
 arch/um/kernel/mem.c                   | 2 +-
 arch/unicore32/mm/init.c               | 2 +-
 arch/x86/mm/highmem_32.c               | 2 +-
 arch/x86/mm/init_32.c                  | 4 ++--
 arch/x86/mm/init_64.c                  | 4 ++--
 arch/x86/xen/mmu_pv.c                  | 2 +-
 arch/xtensa/mm/init.c                  | 2 +-
 include/linux/bootmem.h                | 2 +-
 mm/memblock.c                          | 2 +-
 mm/nobootmem.c                         | 4 ++--
 mm/page_alloc.c                        | 2 +-
 mm/page_poison.c                       | 2 +-
 35 files changed, 39 insertions(+), 39 deletions(-)

diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
index 9d74520..853d153 100644
--- a/arch/alpha/mm/init.c
+++ b/arch/alpha/mm/init.c
@@ -282,7 +282,7 @@ mem_init(void)
 {
 	set_max_mapnr(max_low_pfn);
 	high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
-	free_all_bootmem();
+	memblock_free_all();
 	mem_init_print_info(NULL);
 }
 
diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index ba14506..0f29c65 100644
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -218,7 +218,7 @@ void __init mem_init(void)
 		free_highmem_page(pfn_to_page(tmp));
 #endif
 
-	free_all_bootmem();
+	memblock_free_all();
 	mem_init_print_info(NULL);
 }
 
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 0cc8e04..d421a10 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -508,7 +508,7 @@ void __init mem_init(void)
 
 	/* this will put all unused low memory onto the freelists */
 	free_unused_memmap();
-	free_all_bootmem();
+	memblock_free_all();
 
 #ifdef CONFIG_SA1111
 	/* now that our DMA memory is actually so designated, we can free it */
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index e335452..ae21849 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -601,7 +601,7 @@ void __init mem_init(void)
 	free_unused_memmap();
 #endif
 	/* this will put all unused low memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 
 	kexec_reserve_crashkres_pages();
 
diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c
index dc369ad..3383df8 100644
--- a/arch/c6x/mm/init.c
+++ b/arch/c6x/mm/init.c
@@ -62,7 +62,7 @@ void __init mem_init(void)
 	high_memory = (void *)(memory_end & PAGE_MASK);
 
 	/* this will put all memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 
 	mem_init_print_info(NULL);
 }
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
index 5d31ac9..f2bf448 100644
--- a/arch/h8300/mm/init.c
+++ b/arch/h8300/mm/init.c
@@ -96,7 +96,7 @@ void __init mem_init(void)
 	max_mapnr = MAP_NR(high_memory);
 
 	/* this will put all low memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 
 	mem_init_print_info(NULL);
 }
diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c
index d789b9c..88643fa 100644
--- a/arch/hexagon/mm/init.c
+++ b/arch/hexagon/mm/init.c
@@ -68,7 +68,7 @@ unsigned long long kmap_generation;
 void __init mem_init(void)
 {
 	/*  No idea where this is actually declared.  Seems to evade LXR.  */
-	free_all_bootmem();
+	memblock_free_all();
 	mem_init_print_info(NULL);
 
 	/*
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 2169ca5..43ea4a4 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -627,7 +627,7 @@ mem_init (void)
 
 	set_max_mapnr(max_low_pfn);
 	high_memory = __va(max_low_pfn * PAGE_SIZE);
-	free_all_bootmem();
+	memblock_free_all();
 	mem_init_print_info(NULL);
 
 	/*
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
index 977363e..ae49ae4 100644
--- a/arch/m68k/mm/init.c
+++ b/arch/m68k/mm/init.c
@@ -140,7 +140,7 @@ static inline void init_pointer_tables(void)
 void __init mem_init(void)
 {
 	/* this will put all memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 	init_pointer_tables();
 	mem_init_print_info(NULL);
 }
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 8c7f074..9989740 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -204,7 +204,7 @@ void __init mem_init(void)
 	high_memory = (void *)__va(memory_start + lowmem_size - 1);
 
 	/* this will put all memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 #ifdef CONFIG_HIGHMEM
 	highmem_setup();
 #endif
diff --git a/arch/mips/loongson64/loongson-3/numa.c b/arch/mips/loongson64/loongson-3/numa.c
index c1e6ec5..703ad45 100644
--- a/arch/mips/loongson64/loongson-3/numa.c
+++ b/arch/mips/loongson64/loongson-3/numa.c
@@ -272,7 +272,7 @@ void __init paging_init(void)
 void __init mem_init(void)
 {
 	high_memory = (void *) __va(get_num_physpages() << PAGE_SHIFT);
-	free_all_bootmem();
+	memblock_free_all();
 	setup_zero_pages();	/* This comes from node 0 */
 	mem_init_print_info(NULL);
 }
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index a010fba7..54c36be 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -464,7 +464,7 @@ void __init mem_init(void)
 	high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
 
 	maar_init();
-	free_all_bootmem();
+	memblock_free_all();
 	setup_zero_pages();	/* Setup zeroed pages.  */
 	mem_init_free_highmem();
 	mem_init_print_info(NULL);
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c
index 6f7bef0..cb1f1a6 100644
--- a/arch/mips/sgi-ip27/ip27-memory.c
+++ b/arch/mips/sgi-ip27/ip27-memory.c
@@ -475,7 +475,7 @@ void __init paging_init(void)
 void __init mem_init(void)
 {
 	high_memory = (void *) __va(get_num_physpages() << PAGE_SHIFT);
-	free_all_bootmem();
+	memblock_free_all();
 	setup_zero_pages();	/* This comes from node 0 */
 	mem_init_print_info(NULL);
 }
diff --git a/arch/nds32/mm/init.c b/arch/nds32/mm/init.c
index 5af81b8..66d3e9c 100644
--- a/arch/nds32/mm/init.c
+++ b/arch/nds32/mm/init.c
@@ -192,7 +192,7 @@ void __init mem_init(void)
 	free_highmem();
 
 	/* this will put all low memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 	mem_init_print_info(NULL);
 
 	pr_info("virtual kernel memory layout:\n"
diff --git a/arch/nios2/mm/init.c b/arch/nios2/mm/init.c
index c92fe42..1292350 100644
--- a/arch/nios2/mm/init.c
+++ b/arch/nios2/mm/init.c
@@ -73,7 +73,7 @@ void __init mem_init(void)
 	high_memory = __va(end_mem);
 
 	/* this will put all memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 	mem_init_print_info(NULL);
 }
 
diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index b7670de..91a6a9a 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -213,7 +213,7 @@ void __init mem_init(void)
 	memset((void *)empty_zero_page, 0, PAGE_SIZE);
 
 	/* this will put all low memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 
 	mem_init_print_info(NULL);
 
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 74842d2..bc368e9 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -612,7 +612,7 @@ void __init mem_init(void)
 
 	high_memory = __va((max_pfn << PAGE_SHIFT));
 	set_max_mapnr(page_to_pfn(virt_to_page(high_memory - 1)) + 1);
-	free_all_bootmem();
+	memblock_free_all();
 
 #ifdef CONFIG_PA11
 	if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl) {
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 5c8530d..c141134 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -348,7 +348,7 @@ void __init mem_init(void)
 
 	high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
 	set_max_mapnr(max_pfn);
-	free_all_bootmem();
+	memblock_free_all();
 
 #ifdef CONFIG_HIGHMEM
 	{
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 58a522f..d58c111 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -55,7 +55,7 @@ void __init mem_init(void)
 #endif /* CONFIG_FLATMEM */
 
 	high_memory = (void *)(__va(PFN_PHYS(max_low_pfn)));
-	free_all_bootmem();
+	memblock_free_all();
 
 	mem_init_print_info(NULL);
 }
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 3fa3e53..67bdba6 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -136,7 +136,7 @@ void __init mem_init(void)
 	cmma_init();
 
 	/* this will put all low memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 	setup_zero_pages();	/* Setup zeroed pages. */
 
 	cmma_init_nodat();
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index c884b76..21447f8 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -350,7 +350,7 @@ void __init mem_init(void)
 		high_memory = max_t(void *, high_memory,
 				    __va(pgdat_end_pfn(pgdat) << PAGE_SHIFT));
 
-	free_all_bootmem();
+	memblock_free_all();
 
 	/* Set this up early, so we can take care of the zero page */
 	cpu_cache_init();
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index 885dd38..8807145 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -277,7 +277,7 @@ void __init mem_init(void)
 
 	max_mapnr = last_valid_pfn - pfn_base;
 	high_memory = __va(max_low_pfn << PAGE_SHIFT);
-	free_all_bootmem();
+	memblock_free_all();
 
 	for (i = 0; sp_banks[i].num_bytes != 0; i++) {
 		unsigned long start_pfn = sp_banks[i].base_addr >> PAGE_SHIFT;
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 51cd583..c2c8bff 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -2544,12 +2544,12 @@ void __init mem_init(void)
 {
 	high_memory = __va(last_valid_pfn << PAGE_SHIFT);
 
-	free_all_bootmem();
+	memblock_free_all();
 
 	/*
 	 * Must be done after boot memory is put on freelist, because here we
 	 * might set fields in deferred struct pages that have not yet been
-	 * initialized, and free_all_bootmem() initializes all the reserved
+	 * initialized, and memblock_free_all() initializes all the reserved
 	 * deferred pages for us.
 	 */
 	register_page_bootmem_info();
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 3555c13..2c672a8 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -51,7 +51,7 @@ void __init mem_init(void)
 	uml_reserved = brk_end;
 
 	/* this will put all low memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 	max_low_pfn = totalram_pages;
 	max_pfn = totalram_pages;
 	mem_init_print_info(NULL);
diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
index 4c572ab..3e5bb45 100644
--- a/arch/unicore32/mm/init.c
+++ b/arch/unicore32/mm/init.c
@@ -289,7 +289,7 @@ void __init mem_init(void)
 	free_unused_memmap(&meminfo);
 
 	/* this will put all unused low memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 
 	mem_init_print_info(NULL);
 	printk(KERN_NOTICE "Virtual kernel memory layout:\n"
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index 6d18b70..62915a5 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -111,7 +111,7 @@ void __init set_highmem_pages_init(void)
 
 	/*
 	 * Explicitly reset zone->managed_pages because set_highmem_pages_init()
-	 * is invoked before free_all_bootmem()
+	 * is invoked before memblock_free_all()
 	 */
 	reset_all_zones_managed_pages();
 	for_each_zone(zone) {
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 979e0a0..8ee1e64 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -771,7 +771,7 @@ void __init mem_init(void)
 #endif
 	/*
 	 * With CONFIG_DEBUG_PAGEALLOC initialization of highmem pages has to
-	 * be done before free_all_bootmem(). Memblock use free low memory for
+	 * be done before memblock_free_all(). Memblock use free low memory for
 	 * temporary data (see find_range_array()) and for this purpose can use
 	 * pages that was already passed to the buddy allocator, hence marked as
 	 * not accessible in the page tables when compiled with
@@ -781,7 +781,7 @@ void __init mem_init(void)
 	set_highmem_pages_init();
 
 	/* this will put all low memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 
 	after_bootmem = 1;
 	x86_init.hyper.init_after_bootmem();
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index f39b512..bfb0bed 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1188,14 +1188,14 @@ void __init mem_init(void)
 	/* clear_bss() already clear the empty_zero_page */
 
 	/* this will put all memory onto the freelists */
-	free_all_bootmem();
+	memblock_free_all();
 	after_bootmem = 1;
 	x86_init.hyper.init_after_bootmem();
 
 	/*
 	 * Must be done after boot memory is put on freelist, because here we
 	 * might set fields in deferred struct pages that have not yet been
-	 * initialized, and free_all_bootmem() initializes all the reserved
+	 * initialized, and memblock_free_all() initializes all the reserved
 	 * deferred pages for us.
 	 */
 	register_page_bootmem_info();
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index 7ada9e4..93b54a8 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -864,7 +864,7 @@ static int __init xen_mark_pinned(struct mm_struct *mm, struct page *page,
  * The init_mm pagetable is really pinned as soon as its created, but
  * that's before we have page structures to store the bits.  So do all
  * the book-keeping now once struct pages for allocated pages are
- * initialized. This happens only after free_all_bootmem() is called.
+ * initialized. This happens only after memblock_free_all() is called.
  */
 static void __init xen_after_bootmem(void)
 {
diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index 34aead7..f7fbe63 100644
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -152,7 +152,7 @@ void __init mem_init(void)
 	max_mapnr = max_pfn - ARCH_PFN_OFFSET;
 	high_memory = (void *)__va(max_low_pfn << PAGE_SHIFT);
 
-	free_all_bootmem();
+	memblock_free_all();
 
 	mem_init_print_info(NULL);
 	pr_info("virtual kernel memory layout:\n"
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index bcc7e2f..b58873a 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -26,7 +26,7 @@ extern unsigned long max_pfn;
  */
 extern unsigned long long max_possible_pfn;
 
-extern unsigned long free_all_bootmem(void);
+extern unsigned long memblock_free_all(void);
 extern void reset_node_managed_pages(pg_data_t *pgdat);
 extern void reset_all_zones_managed_pages(void);
 
diff --git a/mm/memblock.c b/mm/memblock.c
index 3a21476..1534edb 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1411,7 +1411,7 @@ static void * __init memblock_alloc_internal(
 	/*
 	 * Detect any accidental use of these APIs after slab is ready, as at
 	 * this moment memblock may be deinitialized already and its
-	 * internal data may be destroyed (after execution of free_all_bootmem)
+	 * internal data may be destroyed (after execution of memblock_free_all)
 	 */
 	if (WARN_ON_ONCE(slab_is_available()))
 		return kzalloc_node(size, GFP_NOWAIT, nid);
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index ee0f7fc..bb64b09 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -111,11 +111,11 @@ void __init reset_all_zones_managed_pages(void)
 }
 
 /**
- * free_all_bootmem - release free pages to the buddy allocator
+ * memblock_free_all - release free pages to the buddy allocator
  *
  * Return: the number of pages actually released.
  */
-unsigned long __init free_all_bootmem(void)
+unsigned long __init memblock_free_all(void)
 {
 	unsigned long pages;
 
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 7658a6f..13e394c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5472,7 +5472,7 @@ overlap_memmap_init(unsigned long zone, unsigned long *pfn)
 
 /*
  * Initially all pages are reserved - free ones are freed
- * up by free_all_bootmem() once the early boot process is
+ * up by memblock_free_all() once the early boot process is
  * done. Non-atomic initialization, single-pass.
  */
 void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
diff --git a/mm/page_poison.c b/mm/page_poison.c
index aa2b3d3..f7e2a67 100644
--- a/mm/page_poison.c
+++ b/mm/page_poison.c
@@ -21,7 +21,7 @@ bool page_poisoning_enabled(void)
 {
 	/*
 	 * Assumes that debug_pagealloc_enabled is set before
-	 * free_all_bootmem.
+	 * memblock_free_all.
 	 * Page poisoning is debug page alloc for some arches. If
 	 * either of those options are enabled, enable poisoning.
 	 */
-- 
2.7.4

From - Thu Nov 08 21:41:58 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.mm,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH 06/30] memblock: rename memblock_alloc{_nid,
 _try_nid} to memblock_phys_alloc*
Date: Fri, 14 Sep 2018 15:10:21 +0300
Lines: 556
Approved: news@gmane.org
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Cc: linux-mips@linux-mips.org, Michal Hocko <mhocko@suse.com>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Catalin Marinas <catalin.marinas@arm.com>, Palmer Dabbelt <palmer@sifive.com>,
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To: linux-mm@kvack.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4373>

Make it explicit that the caller gets a physical address rather than a
virtual one.

This will also allow using meblock_alloc prefix for memblock allocations
returning virtual address, which is done in the following patches.

The conversion is done using the following semantic patch:

@@
expression e1, e2, e3;
@@
(
- memblock_alloc(e1, e2)
+ memblock_phys_alloc(e1, e2)
|
- memblock_alloc_nid(e1, e2, e3)
+ memblock_phys_alloc_nid(e1, e2, e3)
|
- memblock_alloc_try_nid(e1, e2, e3)
+ memblock_phys_alloc_try_nid(e1, e2, e3)
)

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 arch/arm/mm/mmu.c                     |  2 +-
 arch/arm64/mm/mmu.c                   |  2 +-
 arch/arm64/mm/numa.c                  |  2 +-
 arch/c6x/mm/dma-coherent.c            |  4 ++--
 arch/nds32/mm/init.c                  |  8 ++++----
 arch/openrisc/mm/init.c               |  2 +-
 arch/openrisc/mm/ioremap.c            |  2 +-
 arch/powerpc/kernel/dt_cpu_ftrs.c     |  4 +---
 arch/powerpc/kernel/paca.c            |  2 +-
 arch/powerpc/kernel/prom.c            |  2 +-
 arch/powerpc/kernel/setup-common.c    |  3 +--
 arch/powerpc/kernel/setup_32.c        | 10 +++++-----
 arch/powerpc/mm/numa.c                |  2 +-
 arch/powerpc/mm/pgtable_32.c          |  2 +-
 arch/powerpc/mm/ppc_mmu_32.c          |  2 +-
 arch/powerpc/platforms/pasemi/iommu.c |  2 +-
 arch/powerpc/platforms/powernv/opal.c |  2 +-
 arch/powerpc/sysdev/dart_iommu.c      |  2 +-
 arch/s390/kernel/crash_dump.c         |  2 +-
 arch/s390/kernel/setup.c              |  3 ++-
 arch/s390/mm/vmem.c                   |  4 ++--
 arch/s390/numa/numa.c                 |  2 +-
 arch/sparc/kernel/mdesc.c             |  2 +-
 arch/sparc/kernel/prom_64.c           |  2 +-
 arch/sparc/mm/init_64.c               | 11 ++++++-----
 arch/unicore32/mm/mmu.c               |  2 +-
 arch/x86/mm/numa.c                    |  2 +-
 drivers/firmware/efi/memmap.c         |  2 +-
 include/linux/memblock.h              |  6 +++---
 mm/memblock.c                         |  8 ++++----
 30 files changed, 50 insertions(+), 51 deletions(-)

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index e46a6a4..f5cc1cc 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -721,7 +721,7 @@ EXPORT_SYMBOL(phys_mem_access_prot);
 
 static void __init *early_alloc_aligned(unsigned long sz, unsigned long align)
 {
-	void *ptr = __va(memblock_alloc(sz, align));
+	void *ptr = __va(memblock_phys_alloc(sz, align));
 	memset(ptr, 0, sz);
 	return ptr;
 }
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 8080c9f..b8e037b 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -83,7 +83,7 @@ static phys_addr_t __init early_pgtable_alloc(void)
 	phys_addr_t phys;
 	void *ptr;
 
-	phys = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+	phys = memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE);
 
 	/*
 	 * The FIX_{PGD,PUD,PMD} slots may be in active use, but the FIX_PTE
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 146c04c..e5aacd6 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -237,7 +237,7 @@ static void __init setup_node_data(int nid, u64 start_pfn, u64 end_pfn)
 	if (start_pfn >= end_pfn)
 		pr_info("Initmem setup node %d [<memory-less node>]\n", nid);
 
-	nd_pa = memblock_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
+	nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
 	nd = __va(nd_pa);
 
 	/* report and initialize */
diff --git a/arch/c6x/mm/dma-coherent.c b/arch/c6x/mm/dma-coherent.c
index d0a8e0c..01305c7 100644
--- a/arch/c6x/mm/dma-coherent.c
+++ b/arch/c6x/mm/dma-coherent.c
@@ -135,8 +135,8 @@ void __init coherent_mem_init(phys_addr_t start, u32 size)
 	if (dma_size & (PAGE_SIZE - 1))
 		++dma_pages;
 
-	bitmap_phys = memblock_alloc(BITS_TO_LONGS(dma_pages) * sizeof(long),
-				     sizeof(long));
+	bitmap_phys = memblock_phys_alloc(BITS_TO_LONGS(dma_pages) * sizeof(long),
+					  sizeof(long));
 
 	dma_bitmap = phys_to_virt(bitmap_phys);
 	memset(dma_bitmap, 0, dma_pages * PAGE_SIZE);
diff --git a/arch/nds32/mm/init.c b/arch/nds32/mm/init.c
index c713d2a..5af81b8 100644
--- a/arch/nds32/mm/init.c
+++ b/arch/nds32/mm/init.c
@@ -81,7 +81,7 @@ static void __init map_ram(void)
 		}
 
 		/* Alloc one page for holding PTE's... */
-		pte = (pte_t *) __va(memblock_alloc(PAGE_SIZE, PAGE_SIZE));
+		pte = (pte_t *) __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
 		memset(pte, 0, PAGE_SIZE);
 		set_pmd(pme, __pmd(__pa(pte) + _PAGE_KERNEL_TABLE));
 
@@ -114,7 +114,7 @@ static void __init fixedrange_init(void)
 	pgd = swapper_pg_dir + pgd_index(vaddr);
 	pud = pud_offset(pgd, vaddr);
 	pmd = pmd_offset(pud, vaddr);
-	fixmap_pmd_p = (pmd_t *) __va(memblock_alloc(PAGE_SIZE, PAGE_SIZE));
+	fixmap_pmd_p = (pmd_t *) __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
 	memset(fixmap_pmd_p, 0, PAGE_SIZE);
 	set_pmd(pmd, __pmd(__pa(fixmap_pmd_p) + _PAGE_KERNEL_TABLE));
 
@@ -127,7 +127,7 @@ static void __init fixedrange_init(void)
 	pgd = swapper_pg_dir + pgd_index(vaddr);
 	pud = pud_offset(pgd, vaddr);
 	pmd = pmd_offset(pud, vaddr);
-	pte = (pte_t *) __va(memblock_alloc(PAGE_SIZE, PAGE_SIZE));
+	pte = (pte_t *) __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
 	memset(pte, 0, PAGE_SIZE);
 	set_pmd(pmd, __pmd(__pa(pte) + _PAGE_KERNEL_TABLE));
 	pkmap_page_table = pte;
@@ -153,7 +153,7 @@ void __init paging_init(void)
 	fixedrange_init();
 
 	/* allocate space for empty_zero_page */
-	zero_page = __va(memblock_alloc(PAGE_SIZE, PAGE_SIZE));
+	zero_page = __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
 	memset(zero_page, 0, PAGE_SIZE);
 	zone_sizes_init();
 
diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index 6972d5d..b7670de 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -106,7 +106,7 @@ static void __init map_ram(void)
 			}
 
 			/* Alloc one page for holding PTE's... */
-			pte = (pte_t *) __va(memblock_alloc(PAGE_SIZE, PAGE_SIZE));
+			pte = (pte_t *) __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
 			set_pmd(pme, __pmd(_KERNPG_TABLE + __pa(pte)));
 
 			/* Fill the newly allocated page with PTE'S */
diff --git a/arch/openrisc/mm/ioremap.c b/arch/openrisc/mm/ioremap.c
index 2175e4b..c969752 100644
--- a/arch/openrisc/mm/ioremap.c
+++ b/arch/openrisc/mm/ioremap.c
@@ -126,7 +126,7 @@ pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm,
 	if (likely(mem_init_done)) {
 		pte = (pte_t *) __get_free_page(GFP_KERNEL);
 	} else {
-		pte = (pte_t *) __va(memblock_alloc(PAGE_SIZE, PAGE_SIZE));
+		pte = (pte_t *) __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
 	}
 
 	if (pte)
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index f432054..8be3721 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -1008,9 +1008,7 @@ static int __init dt_cpu_ftrs_scan_callback(unsigned long node, const char
 	/* Count and allocate space for cpu features */
 	of_scan_flat_dt_subnodes(node, count_cpufeatures_subnodes,
 						&nr_dt_cpu_features);
-	dt_cpu_features = __va(
-		memblock_alloc(sizeof(struct dt_cpu_feature)*
-				nr_dt_cpu_features, PAGE_SIZE));
+	dt_cpu_features = __va(memblock_phys_alloc(sizeof(struct dt_cpu_feature) * nr_dt_cpu_features, PAGE_SIZE));
 
 	cpufeatures_setup_start(isa);
 
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index 0ee3e6d..f331a00 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -198,7 +198,7 @@ void __init allocate_paca_ptrs(void)
 	paca_nr_cpu_ids = nr_cpu_ids;
 
 	paca_ptrs_size = sizeof(struct paca_struct *) * nr_cpu_ids;
-	paca_ptrs = __va(memblock_alloc(paca_ptrs_size, 0));
+	paca_ptrs = __va(memblock_phys_alloc(paca_ptrs_size, 0));
 	memset(paca_ptrs, 0x88, paca_ptrs_size);
 }
 
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index c4d7078..fe758ce 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -126,7 +126,7 @@ static void __init move_device_tree(void)
 	if ((memory_limit && (start + size) > PHYSICAL_START + memory_limit) ||
 			overlaps_crashkernel(start, size) ||
 			overlaps_initrd(start, size)) {
-		p = __va(memblock_alloc(size, PAGE_SIZE));
+		p = __va(memblock_phys_alloc(size, PAGE_SIZE));
 		memcpy(p, initial_boot_params, size);
 		initial_boot_params = p;
 		DBG("Moved device tree to 0x%p\n", p);
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 93fa0c9..710ff98 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -459,8 +459,7 @@ void __init smp_setup_cpu_maps(void)
 
 	DBG("smp_setup_cpu_maps()\n");
 
-	cpu_to_phys_id = __va(memblock_alloc(nr_cpu_ids * sizeof(u32),
-							__alignof__(u32)));
+	cpu_to_phys_id = __va(memblock_phys_alloc(nr_cpu_ids * sizeof(u32), __alignof__(u32)));
 	memset(cpu_to_phys_id, 0, nr_cpu_ids * sizeof(u32));
 
 	for_each_node_by_type(dn, "cpu") {
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 8c507be..8190960 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -206,9 +206,9 @@ void __init irqstack_early_init(void)
 	 * as the memblock is limited to lowmem by default */
 	for_each_possible_cpu(i) {
 		softirq_ctx[i] = (struct thread_info *)
-			__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));
+			__va(memblock_phys_alloc(THREAD_SIZE, THREAD_SIZE));
 		hardirq_ctx[i] = (struct thread_info *)
-			__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));
+			__va(memblock_phys_alloc(THREAD_SIZE, THREAD_SIZE));
 	}
 }
 
@@ -227,12 +227,12 @@ void __init exc_lvl_early_init(void)
 #endif
 
 		critirq_ctx[hw_cpu] = (struct thread_info *)
-			__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));
+			__va(memblock_phys_alloc(THREAD_SIZE, THREAD_SIZE));
 #ifdef CONFIG_BOOKE
 		dbgirq_ctx[hw_cpu] = (struct thread_info *)
-			__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));
+			__va(memblock_phys_alloc(THREAD_SIZE, THREAD_SIZE));
 		mcheckirq_ctx[hw_cpu] = (struct thread_info *)
-			__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));
+			__va(memblock_phys_alloc(THREAD_SIZE, THREAD_SIZE));
 #endif
 	}
 }
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 35ac542..5fc0587 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -788,7 +788,7 @@ static void __init setup_node_data(int nid, u64 start_pfn, u64 end_pfn)
 	void *nd;
 	int tnid;
 
-	nd_pa = memblock_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
+	nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
 	nd = __va(nd_pa);
 
 	/* report and initialize */
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 120a49b..989a1c2 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -50,7 +50,7 @@ __ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 	if (slab_is_available()) {
 		pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
 	} else {
-		pte = __va(memblock_alloc(PAGE_SIZE, PAGE_SIZE));
+		pte = __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE));
 		if (pte)
 			clear_page(pte);
 	}
diff --git a/arch/powerpc/mm/ppc_mmu_32.c b/arch/powerpc/mm/ppc_mmu_32.c
index bea6c54..9ee0357 100644
--- a/arch/powerpc/mm/ppc_mmu_32.c
+++ b/arch/powerpc/mm/ppc_mmu_32.c
@@ -224,7 +224,7 @@ void __init MMU_init_hw(void)
 	 * Find some memory for the hash table.
 	 */
 	if ( ppc_md.progress ) ppc_md.progress("hash:find piece", 0x322);
-	Hash = __va(memblock_alloc(Hash_size, Hash_size));
+	Hash = __va(memblock_phys_alloc(Hash_size, Hash_size));
 	memset(Hash, 0, Hash_size);
 	_SDR1 = __pa(Hash) | SDR1_LOW_BITS;
 
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index f06c83f..f297152 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -213,7 +213,7 @@ static int __init iob_init(struct device_node *dn)
 	pr_info("IOBMAP L2 allocated at: %p\n", iob_l2_base);
 
 	/* Allocate a spare page to map all invalid IOTLB pages. */
-	tmp = memblock_alloc(IOBMAP_PAGE_SIZE, IOBMAP_PAGE_SIZE);
+	tmp = memblock_phys_alloc(IOBMAP_PAGE_SIZE, IOBMAP_PAGE_SIZE);
 	if (!tmp)
 		panic("IOBMAP: Cannot allocate spare page!");
 	/* Empty l1 is marked invalid */
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 38fe408..9431921 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -171,7 +171,7 @@ int __init early_init_dt_scan_recoverable_ranges(unsigned long node,
 	/*
 	 * Allocate a buffer to hold the MC recoverable ranges.
 	 */
-	mc_recoverable_range =__va(memblock_alloc(size, __alignof__(u64)));
+	mc_recoverable_range =__va(memblock_phys_alloc(size, __alignof__(u64)));
 	memset(mc_recoverable_range, 0, size);
 
 	for (i = 0; i < mc_recoverable_range_len; i++) {
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 5ca3e22..a5b40d1 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -261,7 +261,7 @@ static void allocate_dart(void)
 	 * that to work around what looks like a problem with the HT bridge
 	 * prefetching into invalid pages and corrupting data
 	 */
-	tmp = memblock_alloc(DART_PAGE_SIZE, DART_PAGE_SIZE);
+	tmp = memblock_phys_alloc(DART_PAGE_SIZE, DART_PAGE_SIZE);
 	dart_emptyval = DARTMAP_VALID | ((tmp >> DART_PAGE_SHIFT) &
 					 DARTMAP_RPNMASK);
 
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index 376f6b6..d17566a 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -61,7 +61,7 @@ struct save_area * __init save_area_alloc(bool is_boot_cpu)
 {
 	struct save_area *sa;
 
-	sa = (void *) memblock_alloc(sizeof(*sa), 8);
+	sa = (void *) memblock_phys_alloc(sizeof(*sa), 8);
 	if (is_boot_cpu)
 		list_add(&sa->list, &dump_save_areas);
 	else
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index c637c12..2f2ee43 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -843,7 +843,8 @@ static void __init setup_randomness(void)
 {
 	struct sysinfo_3_2_2 *vmms;
 
-	vmms = (struct sysinfo_3_2_2 *) memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+	vmms = (struct sysinfo_3_2_2 *) memblock_phys_alloc(PAGE_SIZE,
+							    PAGE_SIZE);
 	if (stsi(vmms, 3, 2, 2) == 0 && vmms->count)
 		add_device_randomness(&vmms->vm, sizeof(vmms->vm[0]) * vmms->count);
 	memblock_free((unsigned long) vmms, PAGE_SIZE);
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index db55561..04638b0 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -36,7 +36,7 @@ static void __ref *vmem_alloc_pages(unsigned int order)
 
 	if (slab_is_available())
 		return (void *)__get_free_pages(GFP_KERNEL, order);
-	return (void *) memblock_alloc(size, size);
+	return (void *) memblock_phys_alloc(size, size);
 }
 
 void *vmem_crst_alloc(unsigned long val)
@@ -57,7 +57,7 @@ pte_t __ref *vmem_pte_alloc(void)
 	if (slab_is_available())
 		pte = (pte_t *) page_table_alloc(&init_mm);
 	else
-		pte = (pte_t *) memblock_alloc(size, size);
+		pte = (pte_t *) memblock_phys_alloc(size, size);
 	if (!pte)
 		return NULL;
 	memset64((u64 *)pte, _PAGE_INVALID, PTRS_PER_PTE);
diff --git a/arch/s390/numa/numa.c b/arch/s390/numa/numa.c
index 5bd3744..297f5d8 100644
--- a/arch/s390/numa/numa.c
+++ b/arch/s390/numa/numa.c
@@ -64,7 +64,7 @@ static __init pg_data_t *alloc_node_data(void)
 {
 	pg_data_t *res;
 
-	res = (pg_data_t *) memblock_alloc(sizeof(pg_data_t), 8);
+	res = (pg_data_t *) memblock_phys_alloc(sizeof(pg_data_t), 8);
 	memset(res, 0, sizeof(pg_data_t));
 	return res;
 }
diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index 39a2503..59131e7 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -170,7 +170,7 @@ static struct mdesc_handle * __init mdesc_memblock_alloc(unsigned int mdesc_size
 		       mdesc_size);
 	alloc_size = PAGE_ALIGN(handle_size);
 
-	paddr = memblock_alloc(alloc_size, PAGE_SIZE);
+	paddr = memblock_phys_alloc(alloc_size, PAGE_SIZE);
 
 	hp = NULL;
 	if (paddr) {
diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c
index baeaeed..c37955d 100644
--- a/arch/sparc/kernel/prom_64.c
+++ b/arch/sparc/kernel/prom_64.c
@@ -34,7 +34,7 @@
 
 void * __init prom_early_alloc(unsigned long size)
 {
-	unsigned long paddr = memblock_alloc(size, SMP_CACHE_BYTES);
+	unsigned long paddr = memblock_phys_alloc(size, SMP_CACHE_BYTES);
 	void *ret;
 
 	if (!paddr) {
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index f396048..578ec3d 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1092,7 +1092,8 @@ static void __init allocate_node_data(int nid)
 #ifdef CONFIG_NEED_MULTIPLE_NODES
 	unsigned long paddr;
 
-	paddr = memblock_alloc_try_nid(sizeof(struct pglist_data), SMP_CACHE_BYTES, nid);
+	paddr = memblock_phys_alloc_try_nid(sizeof(struct pglist_data),
+					    SMP_CACHE_BYTES, nid);
 	if (!paddr) {
 		prom_printf("Cannot allocate pglist_data for nid[%d]\n", nid);
 		prom_halt();
@@ -1266,8 +1267,8 @@ static int __init grab_mlgroups(struct mdesc_handle *md)
 	if (!count)
 		return -ENOENT;
 
-	paddr = memblock_alloc(count * sizeof(struct mdesc_mlgroup),
-			  SMP_CACHE_BYTES);
+	paddr = memblock_phys_alloc(count * sizeof(struct mdesc_mlgroup),
+				    SMP_CACHE_BYTES);
 	if (!paddr)
 		return -ENOMEM;
 
@@ -1307,8 +1308,8 @@ static int __init grab_mblocks(struct mdesc_handle *md)
 	if (!count)
 		return -ENOENT;
 
-	paddr = memblock_alloc(count * sizeof(struct mdesc_mblock),
-			  SMP_CACHE_BYTES);
+	paddr = memblock_phys_alloc(count * sizeof(struct mdesc_mblock),
+				    SMP_CACHE_BYTES);
 	if (!paddr)
 		return -ENOMEM;
 
diff --git a/arch/unicore32/mm/mmu.c b/arch/unicore32/mm/mmu.c
index 0c94b7b..18b355a 100644
--- a/arch/unicore32/mm/mmu.c
+++ b/arch/unicore32/mm/mmu.c
@@ -144,7 +144,7 @@ static void __init build_mem_type_table(void)
 
 static void __init *early_alloc(unsigned long sz)
 {
-	void *ptr = __va(memblock_alloc(sz, sz));
+	void *ptr = __va(memblock_phys_alloc(sz, sz));
 	memset(ptr, 0, sz);
 	return ptr;
 }
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index fa15085..16e37d7 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -196,7 +196,7 @@ static void __init alloc_node_data(int nid)
 	 * Allocate node data.  Try node-local memory and then any node.
 	 * Never allocate in DMA zone.
 	 */
-	nd_pa = memblock_alloc_nid(nd_size, SMP_CACHE_BYTES, nid);
+	nd_pa = memblock_phys_alloc_nid(nd_size, SMP_CACHE_BYTES, nid);
 	if (!nd_pa) {
 		nd_pa = __memblock_alloc_base(nd_size, SMP_CACHE_BYTES,
 					      MEMBLOCK_ALLOC_ACCESSIBLE);
diff --git a/drivers/firmware/efi/memmap.c b/drivers/firmware/efi/memmap.c
index 5fc7052..ef618bc 100644
--- a/drivers/firmware/efi/memmap.c
+++ b/drivers/firmware/efi/memmap.c
@@ -15,7 +15,7 @@
 
 static phys_addr_t __init __efi_memmap_alloc_early(unsigned long size)
 {
-	return memblock_alloc(size, 0);
+	return memblock_phys_alloc(size, 0);
 }
 
 static phys_addr_t __init __efi_memmap_alloc_late(unsigned long size)
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 4ae91fc..f16833c 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -315,10 +315,10 @@ static inline int memblock_get_region_node(const struct memblock_region *r)
 }
 #endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
 
-phys_addr_t memblock_alloc_nid(phys_addr_t size, phys_addr_t align, int nid);
-phys_addr_t memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid);
+phys_addr_t memblock_phys_alloc_nid(phys_addr_t size, phys_addr_t align, int nid);
+phys_addr_t memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid);
 
-phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align);
+phys_addr_t memblock_phys_alloc(phys_addr_t size, phys_addr_t align);
 
 /*
  * Set the allocation direction to bottom-up or top-down.
diff --git a/mm/memblock.c b/mm/memblock.c
index bba8d4e..f8b6b79 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1320,7 +1320,7 @@ phys_addr_t __init memblock_alloc_base_nid(phys_addr_t size,
 	return memblock_alloc_range_nid(size, align, 0, max_addr, nid, flags);
 }
 
-phys_addr_t __init memblock_alloc_nid(phys_addr_t size, phys_addr_t align, int nid)
+phys_addr_t __init memblock_phys_alloc_nid(phys_addr_t size, phys_addr_t align, int nid)
 {
 	enum memblock_flags flags = choose_memblock_flags();
 	phys_addr_t ret;
@@ -1355,14 +1355,14 @@ phys_addr_t __init memblock_alloc_base(phys_addr_t size, phys_addr_t align, phys
 	return alloc;
 }
 
-phys_addr_t __init memblock_alloc(phys_addr_t size, phys_addr_t align)
+phys_addr_t __init memblock_phys_alloc(phys_addr_t size, phys_addr_t align)
 {
 	return memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ACCESSIBLE);
 }
 
-phys_addr_t __init memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid)
+phys_addr_t __init memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid)
 {
-	phys_addr_t res = memblock_alloc_nid(size, align, nid);
+	phys_addr_t res = memblock_phys_alloc_nid(size, align, nid);
 
 	if (res)
 		return res;
-- 
2.7.4

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Hi Arnd,

On 13.09.2018 17:59, Arnd Bergmann wrote:
> There are only two 64-bit architecture ports that have a 32-bit
> suseconds_t: sparc64 and parisc64. I've encountered a number of problems
> with this, while trying to get a proper 64-bit time_t working on 32-bit
> architectures. Having a 32-bit suseconds_t combined with a 64-bit time_t
> means that we get extra padding in data structures that may leak kernel
> stack data to user space, and it breaks all code that assumes that
> timespec and timeval have the same layout.
> 
> While we can't change sparc64, it seems that glibc on parisc64 has always
> set suseconds_t to 'long', and the current version would give incorrect
> results for gettimeofday() and many other interfaces: timestamps passed
> from user space into the kernel result in tv_usec being always zero
> (the lower bits contain the intended value but are ignored) while data
> passed from the kernel to user space contains either zeroes or random
> data in tv_usec.

Should this wrong behavior be visible with 32-bit userspace or
with 64-bit userspace (or both)?
I didn't noticed such wrong behavior yet.

Can you suggest some test programs to verify?
LTP seems to be correct.
 
> Based on that, it seems best to change the user API in the kernel in
> an incompatible way to match what glibc expects.

Basically that sounds the right way to go, but as said before,
I didn't see such issues.

> Note that the distros I could find (gentoo and debian) all just
> have 32-bit user space, which does not suffer from this problem.

That's correct.
Kernel can be 32- or 64-bit, but userspace is currentl 32-bit only.

So, breaking any 64-bit userspace is OK, since we don't have it yet.
Breaking 32-bit userspace needs some thoughts...

Helge


> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  arch/parisc/include/uapi/asm/posix_types.h | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/arch/parisc/include/uapi/asm/posix_types.h b/arch/parisc/include/uapi/asm/posix_types.h
> index 2785632c85e7..8dce56f5dcee 100644
> --- a/arch/parisc/include/uapi/asm/posix_types.h
> +++ b/arch/parisc/include/uapi/asm/posix_types.h
> @@ -16,9 +16,6 @@ typedef unsigned short		__kernel_mode_t;
>  typedef unsigned short		__kernel_ipc_pid_t;
>  #define __kernel_ipc_pid_t __kernel_ipc_pid_t
>  
> -typedef int			__kernel_suseconds_t;
> -#define __kernel_suseconds_t __kernel_suseconds_t
> -
>  typedef long long		__kernel_off64_t;
>  typedef unsigned long long	__kernel_ino64_t;
>  
> 



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Hi

I have noticed that C11 atomics are broken on gcc-7 and gcc-8 on parisc. 

When writing an atomic variable, gcc-6 and before calls the library 
function __sync_val_compare_and_swap_4. That calls the kernel and takes 
the lock. There's no problem.

gcc-7 and gcc-8 don't call it, they just directly write the atomic 
variable, optionally with the "sync" instructions before or after 
(depending on the memory model).

Now the problem is - suppose that an atomic write races with atomic 
exchange on the same variable. Either the write wins the race (in that 
case the exchange operation should return the value that was written by 
the write) or the exchange wins the race (in that case the value that was 
written by the write should permanently stay in the variable). On parisc, 
the written value is lost, because the write doesn't take the lock.


Initially, val == 1

Thread 1 (excuting atomic_exchange_explicit(&val, 3, memory_order_relaxed))
read the variable from userspace (reads 1)
call __sync_val_compare_and_swap_4
call the kernel
take the lock
read the variable inside the kernel (reads 1), so it is going to proceed with the write

Thread 2 (executing atomic_store_explicit(&val, 2, memory_order_relaxed))
write the variable with 2

Thread 1 (continuing)
write the variable with 3
drop the lock
exit the kernel
exit __sync_val_compare_and_swap_4

--- the value "2" that was written by thread 2 is lost.


The bug can be tested with this program. When compiled with gcc-7 or 
gcc-8, it fails with "(after 4726 loops): atomics are broken, val = 3, 
xchg returned 1". With gcc-6 or gcc-5 it works.

What's strange is that this bug only happens with the gcc-7 and gcc-8 from 
debian ports, when I compiled gcc 7.3.0 on my own, it properly generates 
the call to __sync_val_compare_and_swap_4. Did someone patch the gcc in 
Debian? Or is it caused by some configure parameter?

Mikulas



#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
#include <stdatomic.h>

static pthread_barrier_t barrier;

static atomic_int val;

static void *thread(void *p)
{
	int r;
	struct random_data rnd;
	char rnd_buf[256];
	volatile int32_t w;

	rnd.state = NULL;
	if (initstate_r(2, rnd_buf, sizeof rnd_buf, &rnd)) perror("initstate_r"), exit(1);

	while (1) {
		r = pthread_barrier_wait(&barrier);
		if (r > 0) fprintf(stderr, "pthread_barrier_wait: %s\n", strerror(r)), exit(1);

		if (random_r(&rnd, (int32_t *)&w)) perror("random_r");
		w &= 0xfff;
		while (w--) ;

		atomic_store_explicit(&val, 2, memory_order_relaxed);

		r = pthread_barrier_wait(&barrier);
		if (r > 0) fprintf(stderr, "pthread_barrier_wait: %s\n", strerror(r)), exit(1);

		r = pthread_barrier_wait(&barrier);
		if (r > 0) fprintf(stderr, "pthread_barrier_wait: %s\n", strerror(r)), exit(1);
	}
}

int main(void)
{
	int r, x;
	pthread_t t;
	struct random_data rnd;
	char rnd_buf[256];
	volatile int32_t w;
	int loops = 0;

	rnd.state = NULL;
	if (initstate_r(1, rnd_buf, sizeof rnd_buf, &rnd)) perror("initstate_r"), exit(1);

	r = pthread_barrier_init(&barrier, NULL, 2);
	if (r) fprintf(stderr, "pthread_barrier_init: %s\n", strerror(r)), exit(1);
	r = pthread_create(&t, NULL, thread, NULL);
	if (r) fprintf(stderr, "pthread_create: %s\n", strerror(r)), exit(1);

	while (1) {
		atomic_init(&val, 1);
		r = pthread_barrier_wait(&barrier);
		if (r > 0) fprintf(stderr, "pthread_barrier_wait: %s\n", strerror(r)), exit(1);

		if (random_r(&rnd, (int32_t *)&w)) perror("random_r");
		w &= 0xfff;
		while (w--) ;

		x = atomic_exchange_explicit(&val, 3, memory_order_relaxed);

		r = pthread_barrier_wait(&barrier);
		if (r > 0) fprintf(stderr, "pthread_barrier_wait: %s\n", strerror(r)), exit(1);

		if (!(
			(x == 2 && atomic_load_explicit(&val, memory_order_relaxed) == 3) ||
			(x == 1 && atomic_load_explicit(&val, memory_order_relaxed) == 2)
		   )) {
			fprintf(stderr, "(after %d loops): atomics are broken, val = %d, xchg returned %d\n", loops, atomic_load_explicit(&val, memory_order_relaxed), x);
			exit(1);
		}

		r = pthread_barrier_wait(&barrier);
		if (r > 0) fprintf(stderr, "pthread_barrier_wait: %s\n", strerror(r)), exit(1);

		loops++;

		if (!(loops % 1000))
			fprintf(stderr, "%d\r", loops);
	}
}



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Subject: Re: C11 atomics on parisc are broken on gcc-7 and gcc-8
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To: Mikulas Patocka <mpatocka@redhat.com>, linux-parisc@vger.kernel.org
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Hi Mikulas,

You are correct.  The problem is my fault.  I changed gcc when it was 
realized that PA 2.0
executes loads and stores out of order.  I need to add back some code 
that was there before.

Debian has picked up the recent gcc update.

We need to use compare and swap for atomic writes since they can be used 
with the synthesized
compare and swap operation.

Thanks,
Dave

On 2018-09-18 6:43 PM, Mikulas Patocka wrote:
> Hi
>
> I have noticed that C11 atomics are broken on gcc-7 and gcc-8 on parisc.
>
> When writing an atomic variable, gcc-6 and before calls the library
> function __sync_val_compare_and_swap_4. That calls the kernel and takes
> the lock. There's no problem.
>
> gcc-7 and gcc-8 don't call it, they just directly write the atomic
> variable, optionally with the "sync" instructions before or after
> (depending on the memory model).
>
> Now the problem is - suppose that an atomic write races with atomic
> exchange on the same variable. Either the write wins the race (in that
> case the exchange operation should return the value that was written by
> the write) or the exchange wins the race (in that case the value that was
> written by the write should permanently stay in the variable). On parisc,
> the written value is lost, because the write doesn't take the lock.
>
>
> Initially, val == 1
>
> Thread 1 (excuting atomic_exchange_explicit(&val, 3, memory_order_relaxed))
> read the variable from userspace (reads 1)
> call __sync_val_compare_and_swap_4
> call the kernel
> take the lock
> read the variable inside the kernel (reads 1), so it is going to proceed with the write
>
> Thread 2 (executing atomic_store_explicit(&val, 2, memory_order_relaxed))
> write the variable with 2
>
> Thread 1 (continuing)
> write the variable with 3
> drop the lock
> exit the kernel
> exit __sync_val_compare_and_swap_4
>
> --- the value "2" that was written by thread 2 is lost.
>
>
> The bug can be tested with this program. When compiled with gcc-7 or
> gcc-8, it fails with "(after 4726 loops): atomics are broken, val = 3,
> xchg returned 1". With gcc-6 or gcc-5 it works.
>
> What's strange is that this bug only happens with the gcc-7 and gcc-8 from
> debian ports, when I compiled gcc 7.3.0 on my own, it properly generates
> the call to __sync_val_compare_and_swap_4. Did someone patch the gcc in
> Debian? Or is it caused by some configure parameter?
>
> Mikulas
>
>
>
> #include <stdio.h>
> #include <stdlib.h>
> #include <string.h>
> #include <pthread.h>
> #include <stdatomic.h>
>
> static pthread_barrier_t barrier;
>
> static atomic_int val;
>
> static void *thread(void *p)
> {
> 	int r;
> 	struct random_data rnd;
> 	char rnd_buf[256];
> 	volatile int32_t w;
>
> 	rnd.state = NULL;
> 	if (initstate_r(2, rnd_buf, sizeof rnd_buf, &rnd)) perror("initstate_r"), exit(1);
>
> 	while (1) {
> 		r = pthread_barrier_wait(&barrier);
> 		if (r > 0) fprintf(stderr, "pthread_barrier_wait: %s\n", strerror(r)), exit(1);
>
> 		if (random_r(&rnd, (int32_t *)&w)) perror("random_r");
> 		w &= 0xfff;
> 		while (w--) ;
>
> 		atomic_store_explicit(&val, 2, memory_order_relaxed);
>
> 		r = pthread_barrier_wait(&barrier);
> 		if (r > 0) fprintf(stderr, "pthread_barrier_wait: %s\n", strerror(r)), exit(1);
>
> 		r = pthread_barrier_wait(&barrier);
> 		if (r > 0) fprintf(stderr, "pthread_barrier_wait: %s\n", strerror(r)), exit(1);
> 	}
> }
>
> int main(void)
> {
> 	int r, x;
> 	pthread_t t;
> 	struct random_data rnd;
> 	char rnd_buf[256];
> 	volatile int32_t w;
> 	int loops = 0;
>
> 	rnd.state = NULL;
> 	if (initstate_r(1, rnd_buf, sizeof rnd_buf, &rnd)) perror("initstate_r"), exit(1);
>
> 	r = pthread_barrier_init(&barrier, NULL, 2);
> 	if (r) fprintf(stderr, "pthread_barrier_init: %s\n", strerror(r)), exit(1);
> 	r = pthread_create(&t, NULL, thread, NULL);
> 	if (r) fprintf(stderr, "pthread_create: %s\n", strerror(r)), exit(1);
>
> 	while (1) {
> 		atomic_init(&val, 1);
> 		r = pthread_barrier_wait(&barrier);
> 		if (r > 0) fprintf(stderr, "pthread_barrier_wait: %s\n", strerror(r)), exit(1);
>
> 		if (random_r(&rnd, (int32_t *)&w)) perror("random_r");
> 		w &= 0xfff;
> 		while (w--) ;
>
> 		x = atomic_exchange_explicit(&val, 3, memory_order_relaxed);
>
> 		r = pthread_barrier_wait(&barrier);
> 		if (r > 0) fprintf(stderr, "pthread_barrier_wait: %s\n", strerror(r)), exit(1);
>
> 		if (!(
> 			(x == 2 && atomic_load_explicit(&val, memory_order_relaxed) == 3) ||
> 			(x == 1 && atomic_load_explicit(&val, memory_order_relaxed) == 2)
> 		   )) {
> 			fprintf(stderr, "(after %d loops): atomics are broken, val = %d, xchg returned %d\n", loops, atomic_load_explicit(&val, memory_order_relaxed), x);
> 			exit(1);
> 		}
>
> 		r = pthread_barrier_wait(&barrier);
> 		if (r > 0) fprintf(stderr, "pthread_barrier_wait: %s\n", strerror(r)), exit(1);
>
> 		loops++;
>
> 		if (!(loops % 1000))
> 			fprintf(stderr, "%d\r", loops);
> 	}
> }
>



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On 2018-09-18 7:13 PM, John David Anglin wrote:
> You are correct.  The problem is my fault.  I changed gcc when it was 
> realized that PA 2.0
> executes loads and stores out of order.  I need to add back some code 
> that was there before.
Testing the attached change.

Dave

-- 
John David Anglin  dave.anglin@bell.net


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From - Thu Nov 08 21:41:58 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v7 00/11] hugetlb: Factorize hugetlb architecture primitives
Date: Thu, 20 Sep 2018 06:03:47 +0000
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Hi Andrew,

As suggested by people who reviewed/acked this series, please consider
including this series into -mm tree.

In order to reduce copy/paste of functions across architectures and then         
make riscv hugetlb port (and future ports) simpler and smaller, this             
patchset intends to factorize the numerous hugetlb primitives that are           
defined across all the architectures.                                            
                                                                                 
Except for prepare_hugepage_range, this patchset moves the versions that         
are just pass-through to standard pte primitives into                            
asm-generic/hugetlb.h by using the same #ifdef semantic that can be              
found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***.                            
                                                                                 
s390 architecture has not been tackled in this serie since it does not           
use asm-generic/hugetlb.h at all.                                                
                                                                                 
This patchset has been compiled on all addressed architectures with              
success (except for parisc, but the problem does not come from this              
series).                 

v7:
  Add Ingo Molnar Acked-By for x86.

v6:                                                                              
  - Remove nohash/32 and book3s/32 powerpc specific implementations in
    order to use the generic ones.                                                        
  - Add all the Reviewed-by, Acked-by and Tested-by in the commits,              
    thanks to everyone.                                                          
                                                                                 
v5:                                                                              
  As suggested by Mike Kravetz, no need to move the #include                     
  <asm-generic/hugetlb.h> for arm and x86 architectures, let it live at          
  the top of the file.                                                           
                                                                                 
v4:                                                                              
  Fix powerpc build error due to misplacing of #include                          
  <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as              
  pointed by Christophe Leroy.                                                   
                                                                                 
v1, v2, v3:                                                                      
  Same version, just problems with email provider and misuse of                  
  --batch-size option of git send-email

Alexandre Ghiti (11):
  hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
  hugetlb: Introduce generic version of hugetlb_free_pgd_range
  hugetlb: Introduce generic version of set_huge_pte_at
  hugetlb: Introduce generic version of huge_ptep_get_and_clear
  hugetlb: Introduce generic version of huge_ptep_clear_flush
  hugetlb: Introduce generic version of huge_pte_none
  hugetlb: Introduce generic version of huge_pte_wrprotect
  hugetlb: Introduce generic version of prepare_hugepage_range
  hugetlb: Introduce generic version of huge_ptep_set_wrprotect
  hugetlb: Introduce generic version of huge_ptep_set_access_flags
  hugetlb: Introduce generic version of huge_ptep_get

 arch/arm/include/asm/hugetlb-3level.h        | 32 +---------
 arch/arm/include/asm/hugetlb.h               | 30 ----------
 arch/arm64/include/asm/hugetlb.h             | 39 +++---------
 arch/ia64/include/asm/hugetlb.h              | 47 ++-------------
 arch/mips/include/asm/hugetlb.h              | 40 +++----------
 arch/parisc/include/asm/hugetlb.h            | 33 +++--------
 arch/powerpc/include/asm/book3s/32/pgtable.h |  6 --
 arch/powerpc/include/asm/book3s/64/pgtable.h |  1 +
 arch/powerpc/include/asm/hugetlb.h           | 43 ++------------
 arch/powerpc/include/asm/nohash/32/pgtable.h |  6 --
 arch/powerpc/include/asm/nohash/64/pgtable.h |  1 +
 arch/sh/include/asm/hugetlb.h                | 54 ++---------------
 arch/sparc/include/asm/hugetlb.h             | 40 +++----------
 arch/x86/include/asm/hugetlb.h               | 69 ----------------------
 include/asm-generic/hugetlb.h                | 88 +++++++++++++++++++++++++++-
 15 files changed, 135 insertions(+), 394 deletions(-)

-- 
2.16.2



From - Thu Nov 08 21:41:58 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v7 01/11] hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h
Date: Thu, 20 Sep 2018 06:03:48 +0000
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Approved: news@gmane.org
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asm-generic/hugetlb.h proposes generic implementations of hugetlb
related functions: use __HAVE_ARCH_HUGE* defines in order to make arch
specific implementations of hugetlb functions consistent with pgtable.h
scheme.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm64/include/asm/hugetlb.h | 2 +-
 include/asm-generic/hugetlb.h    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index e73f68569624..3fcf14663dfa 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -81,9 +81,9 @@ extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTE_CLEAR
 extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 			   pte_t *ptep, unsigned long sz);
-#define huge_pte_clear huge_pte_clear
 extern void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
 				 pte_t *ptep, pte_t pte, unsigned long sz);
 #define set_huge_swap_pte_at set_huge_swap_pte_at
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9d0cde8ab716..3da7cff52360 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -32,7 +32,7 @@ static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot)
 	return pte_modify(pte, newprot);
 }
 
-#ifndef huge_pte_clear
+#ifndef __HAVE_ARCH_HUGE_PTE_CLEAR
 static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 		    pte_t *ptep, unsigned long sz)
 {
-- 
2.16.2



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Subject: [PATCH v7 02/11] hugetlb: Introduce generic version of
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Xref: news.gmane.org gmane.linux.ports.arm.kernel:675042 gmane.linux.ports.mips.general:66737 gmane.linux.ports.ia64:29251 gmane.linux.ports.sh.devel:57526 gmane.linux.kernel.mm:203577 gmane.linux.ports.sparc:28448 gmane.linux.kernel.cross-arch:46622 gmane.linux.ports.parisc:28978 gmane.linux.kernel:2876056 gmane.linux.ports.ppc64.devel:162756
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/675042>

arm, arm64, mips, parisc, sh, x86 architectures use the
same version of hugetlb_free_pgd_range, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Acked-by: Ingo Molnar <mingo@kernel.org> # x86
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb.h     |  9 ---------
 arch/arm64/include/asm/hugetlb.h   | 10 ----------
 arch/ia64/include/asm/hugetlb.h    |  5 +++--
 arch/mips/include/asm/hugetlb.h    | 13 ++-----------
 arch/parisc/include/asm/hugetlb.h  | 12 ++----------
 arch/powerpc/include/asm/hugetlb.h |  4 +++-
 arch/sh/include/asm/hugetlb.h      | 12 ++----------
 arch/sparc/include/asm/hugetlb.h   |  4 +++-
 arch/x86/include/asm/hugetlb.h     |  8 --------
 include/asm-generic/hugetlb.h      | 11 +++++++++++
 10 files changed, 26 insertions(+), 62 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 7d26f6c4f0f5..537660891f9f 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -27,15 +27,6 @@
 
 #include <asm/hugetlb-3level.h>
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3fcf14663dfa..4af1a800a900 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -25,16 +25,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return READ_ONCE(*ptep);
 }
 
-
-
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr, unsigned long len)
 {
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 74d2a5540aaf..afe9fa4d969b 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -3,9 +3,8 @@
 #define _ASM_IA64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -70,4 +69,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_IA64_HUGETLB_H */
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 982bc0685330..53764050243e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -10,8 +10,6 @@
 #define __ASM_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -38,15 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr,
-					  unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -114,4 +103,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* __ASM_HUGETLB_H */
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 58e0f4620426..28c23b68d38d 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -3,8 +3,6 @@
 #define _ASM_PARISC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
@@ -32,14 +30,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
@@ -71,4 +61,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_PARISC64_HUGETLB_H */
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 2d00cc530083..2ab028b73a43 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -4,7 +4,6 @@
 
 #ifdef CONFIG_HUGETLB_PAGE
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 extern struct kmem_cache *hugepte_cache;
 
@@ -110,6 +109,7 @@ static inline void flush_hugetlb_page(struct vm_area_struct *vma,
 void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
 #endif
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
@@ -176,6 +176,8 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#include <asm-generic/hugetlb.h>
+
 #else /* ! CONFIG_HUGETLB_PAGE */
 static inline void flush_hugetlb_page(struct vm_area_struct *vma,
 				      unsigned long vmaddr)
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 735939c0f513..f6a51b609409 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -4,8 +4,6 @@
 
 #include <asm/cacheflush.h>
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
-
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
 					 unsigned long addr,
@@ -27,14 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
@@ -85,4 +75,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 	clear_bit(PG_dcache_clean, &page->flags);
 }
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SH_HUGETLB_H */
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 300557c66698..59d89b52ccb7 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -3,7 +3,6 @@
 #define _ASM_SPARC64_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm-generic/hugetlb.h>
 
 #ifdef CONFIG_HUGETLB_PAGE
 struct pud_huge_patch_entry {
@@ -84,8 +83,11 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
 
+#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
+#include <asm-generic/hugetlb.h>
+
 #endif /* _ASM_SPARC64_HUGETLB_H */
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 5ed826da5e07..398da3b3414c 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,14 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
-					  unsigned long addr, unsigned long end,
-					  unsigned long floor,
-					  unsigned long ceiling)
-{
-	free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 				   pte_t *ptep, pte_t pte)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 3da7cff52360..c697ca9dda18 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -40,4 +40,15 @@ static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
+		unsigned long addr, unsigned long end,
+		unsigned long floor, unsigned long ceiling)
+{
+	free_pgd_range(tlb, addr, end, floor, ceiling);
+}
+
+
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2

From - Thu Nov 08 21:41:59 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v7 03/11] hugetlb: Introduce generic version of set_huge_pte_at
Date: Thu, 20 Sep 2018 06:03:50 +0000
Lines: 186
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arm, ia64, mips, powerpc, sh, x86 architectures use the
same version of set_huge_pte_at, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Acked-by: Ingo Molnar <mingo@kernel.org> # x86
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 6 ------
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 6 ------
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 +++++++-
 10 files changed, 10 insertions(+), 37 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index d4014fbe5ea3..398fb06e8207 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4af1a800a900..874661a1dff1 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -60,6 +60,7 @@ static inline void arch_clear_hugepage_flags(struct page *page)
 extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 				struct page *page, int writable);
 #define arch_make_huge_pte arch_make_huge_pte
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 			    pte_t *ptep, pte_t pte);
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index afe9fa4d969b..a235d6f60fb3 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 53764050243e..8ea439041d5d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,12 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 28c23b68d38d..77c8adbac7c3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -4,6 +4,7 @@
 
 #include <asm/page.h>
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 2ab028b73a43..33b899624922 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -129,12 +129,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index f6a51b609409..bc552e37c1c9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 59d89b52ccb7..16b0c53ea6c9 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -12,6 +12,7 @@ struct pud_huge_patch_entry {
 extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 #endif
 
+#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 398da3b3414c..8db9a761964d 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,12 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
-				   pte_t *ptep, pte_t pte)
-{
-	set_pte_at(mm, addr, ptep, pte);
-}
-
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index c697ca9dda18..ee010b756246 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -47,8 +47,14 @@ static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
 {
 	free_pgd_range(tlb, addr, end, floor, ceiling);
 }
+#endif
 
-
+#ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
+static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+		pte_t *ptep, pte_t pte)
+{
+	set_pte_at(mm, addr, ptep, pte);
+}
 #endif
 
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:59 2018
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From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH v7 04/11] hugetlb: Introduce generic version of
 huge_ptep_get_and_clear
Date: Thu, 20 Sep 2018 06:03:51 +0000
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/675044>

arm, ia64, sh, x86 architectures use the
same version of huge_ptep_get_and_clear, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Acked-by: Ingo Molnar <mingo@kernel.org> # x86
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 6 ------
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 6 ------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 13 insertions(+), 24 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 398fb06e8207..ad36e84b819a 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -49,12 +49,6 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	ptep_set_wrprotect(mm, addr, ptep);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 874661a1dff1..6ae0bcafe162 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -66,6 +66,7 @@ extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index a235d6f60fb3..6719c74da0de 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 8ea439041d5d..0959cc5a41fa 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,6 +36,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 77c8adbac7c3..6e281e1bb336 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -8,6 +8,7 @@
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 33b899624922..91bdc84b76ce 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -129,6 +129,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index bc552e37c1c9..08ee6c00b5e9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 16b0c53ea6c9..944e3a4bfaff 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -16,6 +16,7 @@ extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
 
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep);
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 8db9a761964d..e9e7fef867ad 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,12 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
-					    unsigned long addr, pte_t *ptep)
-{
-	return ptep_get_and_clear(mm, addr, ptep);
-}
-
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ee010b756246..0f6f151780dd 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -57,4 +57,12 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+		unsigned long addr, pte_t *ptep)
+{
+	return ptep_get_and_clear(mm, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2

From - Thu Nov 08 21:41:59 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v7 05/11] hugetlb: Introduce generic version of huge_ptep_clear_flush
Date: Thu, 20 Sep 2018 06:03:52 +0000
Lines: 163
Approved: news@gmane.org
Message-ID: <20180920060358.16606-6-alex@ghiti.fr>
References: <20180920060358.16606-1-alex@ghiti.fr>
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Cc: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
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        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org, Alexandre Ghiti <alex@ghiti.fr>
To: akpm@linux-foundation.org
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Xref: news.gmane.org gmane.linux.kernel:2876063 gmane.linux.kernel.mm:203580 gmane.linux.ports.arm.kernel:675045 gmane.linux.ports.ia64:29254 gmane.linux.ports.mips.general:66740 gmane.linux.ports.parisc:28981 gmane.linux.ports.ppc64.devel:162759 gmane.linux.ports.sh.devel:57529 gmane.linux.ports.sparc:28451 gmane.linux.kernel.cross-arch:46625
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2876063>

arm, x86 architectures use the same version of
huge_ptep_clear_flush, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Acked-by: Ingo Molnar <mingo@kernel.org> # x86
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 6 ------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 1 +
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 1 +
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 6 ------
 include/asm-generic/hugetlb.h         | 8 ++++++++
 10 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index ad36e84b819a..b897541520ef 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 6ae0bcafe162..4c8dd488554d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -71,6 +71,7 @@ extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
 				  unsigned long addr, pte_t *ptep);
 #define __HAVE_ARCH_HUGE_PTE_CLEAR
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 6719c74da0de..41b5f6adeee4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,6 +20,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 0959cc5a41fa..7df1f116a3cc 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -48,6 +48,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 	return pte;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 6e281e1bb336..9afff26747a1 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -32,6 +32,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 91bdc84b76ce..1eb3e131cab4 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -140,6 +140,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 #endif
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 08ee6c00b5e9..9abf9c86b769 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,6 +25,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 944e3a4bfaff..651a9593fcee 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index e9e7fef867ad..fd59673e7a0a 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,12 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep)
-{
-	ptep_clear_flush(vma, addr, ptep);
-}
-
 static inline int huge_pte_none(pte_t pte)
 {
 	return pte_none(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 0f6f151780dd..ffa63fd8388d 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -65,4 +65,12 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
+static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
+		unsigned long addr, pte_t *ptep)
+{
+	ptep_clear_flush(vma, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:59 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v7 06/11] hugetlb: Introduce generic version of huge_pte_none
Date: Thu, 20 Sep 2018 06:03:53 +0000
Lines: 184
Approved: news@gmane.org
Message-ID: <20180920060358.16606-7-alex@ghiti.fr>
References: <20180920060358.16606-1-alex@ghiti.fr>
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Cc: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org, Alexandre Ghiti <alex@ghiti.fr>
To: akpm@linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2876065>

arm, arm64, ia64, mips, parisc, powerpc, sh, sparc, x86 architectures
use the same version of huge_pte_none, so move this generic
implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Acked-by: Ingo Molnar <mingo@kernel.org> # x86
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb.h     | 5 -----
 arch/arm64/include/asm/hugetlb.h   | 5 -----
 arch/ia64/include/asm/hugetlb.h    | 5 -----
 arch/mips/include/asm/hugetlb.h    | 1 +
 arch/parisc/include/asm/hugetlb.h  | 5 -----
 arch/powerpc/include/asm/hugetlb.h | 5 -----
 arch/sh/include/asm/hugetlb.h      | 5 -----
 arch/sparc/include/asm/hugetlb.h   | 5 -----
 arch/x86/include/asm/hugetlb.h     | 5 -----
 include/asm-generic/hugetlb.h      | 7 +++++++
 10 files changed, 8 insertions(+), 40 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 537660891f9f..c821b550d6a4 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -44,11 +44,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 4c8dd488554d..49247c6f94db 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 41b5f6adeee4..bf573500b3c4 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 7df1f116a3cc..1c9c4531376c 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -55,6 +55,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_tlb_page(vma, addr & huge_page_mask(hstate_vma(vma)));
 }
 
+#define __HAVE_ARCH_HUGE_PTE_NONE
 static inline int huge_pte_none(pte_t pte)
 {
 	unsigned long val = pte_val(pte) & ~_PAGE_GLOBAL;
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 9afff26747a1..c09d8c74553c 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 1eb3e131cab4..6a534353c8eb 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -149,11 +149,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 9abf9c86b769..a9f8266f33cf 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 651a9593fcee..11115bbd712e 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index fd59673e7a0a..42d872054791 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,11 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline int huge_pte_none(pte_t pte)
-{
-	return pte_none(pte);
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
 	return pte_wrprotect(pte);
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ffa63fd8388d..2fc3d68424e9 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -73,4 +73,11 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTE_NONE
+static inline int huge_pte_none(pte_t pte)
+{
+	return pte_none(pte);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:59 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v7 07/11] hugetlb: Introduce generic version of huge_pte_wrprotect
Date: Thu, 20 Sep 2018 06:03:54 +0000
Lines: 188
Approved: news@gmane.org
Message-ID: <20180920060358.16606-8-alex@ghiti.fr>
References: <20180920060358.16606-1-alex@ghiti.fr>
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        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
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        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org, Alexandre Ghiti <alex@ghiti.fr>
To: akpm@linux-foundation.org
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Xref: news.gmane.org gmane.linux.kernel:2876067 gmane.linux.kernel.mm:203582 gmane.linux.ports.arm.kernel:675047 gmane.linux.ports.ia64:29256 gmane.linux.ports.mips.general:66742 gmane.linux.ports.parisc:28983 gmane.linux.ports.ppc64.devel:162761 gmane.linux.ports.sh.devel:57531 gmane.linux.ports.sparc:28453 gmane.linux.kernel.cross-arch:46627
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2876067>

arm, arm64, ia64, mips, parisc, powerpc, sh, sparc, x86
architectures use the same version of huge_pte_wrprotect, so move
this generic implementation into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Acked-by: Ingo Molnar <mingo@kernel.org> # x86
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb.h     | 5 -----
 arch/arm64/include/asm/hugetlb.h   | 5 -----
 arch/ia64/include/asm/hugetlb.h    | 5 -----
 arch/mips/include/asm/hugetlb.h    | 5 -----
 arch/parisc/include/asm/hugetlb.h  | 5 -----
 arch/powerpc/include/asm/hugetlb.h | 5 -----
 arch/sh/include/asm/hugetlb.h      | 5 -----
 arch/sparc/include/asm/hugetlb.h   | 5 -----
 arch/x86/include/asm/hugetlb.h     | 5 -----
 include/asm-generic/hugetlb.h      | 7 +++++++
 10 files changed, 7 insertions(+), 45 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index c821b550d6a4..9ca14227eeb7 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -44,11 +44,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 49247c6f94db..1fd64ebf0cd7 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index bf573500b3c4..82fe3d7a38d9 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 1c9c4531376c..b3d6bb53ee6e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -62,11 +62,6 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index c09d8c74553c..5a102d7251e4 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 6a534353c8eb..b5b57b309564 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -149,11 +149,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index a9f8266f33cf..54f65094efe6 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 11115bbd712e..f661362376e0 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 42d872054791..3cd3a2c9840e 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,11 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
-	return pte_wrprotect(pte);
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 2fc3d68424e9..cd9697672b79 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -80,4 +80,11 @@ static inline int huge_pte_none(pte_t pte)
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTE_WRPROTECT
+static inline pte_t huge_pte_wrprotect(pte_t pte)
+{
+	return pte_wrprotect(pte);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:59 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v7 08/11] hugetlb: Introduce generic version of prepare_hugepage_range
Date: Thu, 20 Sep 2018 06:03:55 +0000
Lines: 223
Approved: news@gmane.org
Message-ID: <20180920060358.16606-9-alex@ghiti.fr>
References: <20180920060358.16606-1-alex@ghiti.fr>
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Cc: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
        ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, arnd@arndb.de,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-mips@linux-mips.org,
        linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org, Alexandre Ghiti <alex@ghiti.fr>
To: akpm@linux-foundation.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2876069>

arm, arm64, powerpc, sparc, x86 architectures use the same version of
prepare_hugepage_range, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Acked-by: Ingo Molnar <mingo@kernel.org> # x86
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb.h     | 11 -----------
 arch/arm64/include/asm/hugetlb.h   | 11 -----------
 arch/ia64/include/asm/hugetlb.h    |  1 +
 arch/mips/include/asm/hugetlb.h    |  1 +
 arch/parisc/include/asm/hugetlb.h  |  1 +
 arch/powerpc/include/asm/hugetlb.h | 15 ---------------
 arch/sh/include/asm/hugetlb.h      |  1 +
 arch/sparc/include/asm/hugetlb.h   | 16 ----------------
 arch/x86/include/asm/hugetlb.h     | 15 ---------------
 include/asm-generic/hugetlb.h      | 15 +++++++++++++++
 10 files changed, 19 insertions(+), 68 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 9ca14227eeb7..3fcef21ff2c2 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -33,17 +33,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int prepare_hugepage_range(struct file *file,
-					 unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 1fd64ebf0cd7..3e7f6e69b28d 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -31,17 +31,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int prepare_hugepage_range(struct file *file,
-					 unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 82fe3d7a38d9..cbe296271030 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -9,6 +9,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len);
 
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index b3d6bb53ee6e..6ff2531cfb1d 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -18,6 +18,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 					 unsigned long addr,
 					 unsigned long len)
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 5a102d7251e4..fb7e0fd858a3 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -22,6 +22,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
  * If the arch doesn't supply something else, assume that hugepage
  * size aligned regions are ok without further preparation.
  */
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len)
 {
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index b5b57b309564..2a90f387880a 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -114,21 +114,6 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
 			    unsigned long end, unsigned long floor,
 			    unsigned long ceiling);
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 					    unsigned long addr, pte_t *ptep)
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 54f65094efe6..f1bbd255ee43 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -15,6 +15,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
  * If the arch doesn't supply something else, assume that hugepage
  * size aligned regions are ok without further preparation.
  */
+#define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
 static inline int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len)
 {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index f661362376e0..2101ea217f33 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -26,22 +26,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 					 unsigned long addr, pte_t *ptep)
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 3cd3a2c9840e..59c056adb3c9 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,21 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
-			unsigned long addr, unsigned long len)
-{
-	struct hstate *h = hstate_file(file);
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (addr & ~huge_page_mask(h))
-		return -EINVAL;
-	return 0;
-}
-
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index cd9697672b79..6c0c8b0c71e0 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -87,4 +87,19 @@ static inline pte_t huge_pte_wrprotect(pte_t pte)
 }
 #endif
 
+#ifndef __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
+static inline int prepare_hugepage_range(struct file *file,
+		unsigned long addr, unsigned long len)
+{
+	struct hstate *h = hstate_file(file);
+
+	if (len & ~huge_page_mask(h))
+		return -EINVAL;
+	if (addr & ~huge_page_mask(h))
+		return -EINVAL;
+
+	return 0;
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:59 2018
X-Mozilla-Status: 0001
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v7 09/11] hugetlb: Introduce generic version of huge_ptep_set_wrprotect
Date: Thu, 20 Sep 2018 06:03:56 +0000
Lines: 227
Approved: news@gmane.org
Message-ID: <20180920060358.16606-10-alex@ghiti.fr>
References: <20180920060358.16606-1-alex@ghiti.fr>
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Cc: linux-mm@kvack.org, mike.kravetz@oracle.com, linux@armlinux.org.uk,
        catalin.marinas@arm.com, will.deacon@arm.com, tony.luck@intel.com,
        fenghua.yu@intel.com, ralf@linux-mips.org, paul.burton@mips.com,
        jhogan@kernel.org, jejb@parisc-linux.org, deller@gmx.de,
        benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
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        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org, Alexandre Ghiti <alex@ghiti.fr>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2876070>

arm, ia64, mips, powerpc, sh, x86 architectures use the same version
of huge_ptep_set_wrprotect, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Acked-by: Ingo Molnar <mingo@kernel.org> # x86
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h        | 6 ------
 arch/arm64/include/asm/hugetlb.h             | 1 +
 arch/ia64/include/asm/hugetlb.h              | 6 ------
 arch/mips/include/asm/hugetlb.h              | 6 ------
 arch/parisc/include/asm/hugetlb.h            | 1 +
 arch/powerpc/include/asm/book3s/32/pgtable.h | 6 ------
 arch/powerpc/include/asm/book3s/64/pgtable.h | 1 +
 arch/powerpc/include/asm/nohash/32/pgtable.h | 6 ------
 arch/powerpc/include/asm/nohash/64/pgtable.h | 1 +
 arch/sh/include/asm/hugetlb.h                | 6 ------
 arch/sparc/include/asm/hugetlb.h             | 1 +
 arch/x86/include/asm/hugetlb.h               | 6 ------
 include/asm-generic/hugetlb.h                | 8 ++++++++
 13 files changed, 13 insertions(+), 42 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index b897541520ef..8247cd6a2ac6 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 3e7f6e69b28d..f4f69ae5466e 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -48,6 +48,7 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
 extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 				     unsigned long addr, pte_t *ptep);
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep);
 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index cbe296271030..49d1f7949f3a 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,12 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 6ff2531cfb1d..3dcf5debf8c4 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -63,12 +63,6 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr,
 					     pte_t *ptep, pte_t pte,
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index fb7e0fd858a3..9c3950ca2974 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -39,6 +39,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
index 751cf931bb3f..796d026da37e 100644
--- a/arch/powerpc/include/asm/book3s/32/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
@@ -221,12 +221,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 {
 	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
 }
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 
 static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
 					   pte_t *ptep, pte_t entry,
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 13a688fc8cd0..badb56963885 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -461,6 +461,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 		pte_update(mm, addr, ptep, 0, _PAGE_PRIVILEGED, 0);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index a507a65b0866..6c82b9660c55 100644
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -246,12 +246,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 {
 	pte_update(ptep, (_PAGE_RW | _PAGE_HWWRITE), _PAGE_RO);
 }
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 
 static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
 					   pte_t *ptep, pte_t entry,
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
index 7cd6809f4d33..68283e632f04 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
@@ -239,6 +239,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 	pte_update(mm, addr, ptep, _PAGE_RW, 0, 0);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index f1bbd255ee43..8df4004977b9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,12 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 2101ea217f33..c41754a113f3 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -32,6 +32,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 59c056adb3c9..a3f781f7a264 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,12 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
-					   unsigned long addr, pte_t *ptep)
-{
-	ptep_set_wrprotect(mm, addr, ptep);
-}
-
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 6c0c8b0c71e0..9b9039845278 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -102,4 +102,12 @@ static inline int prepare_hugepage_range(struct file *file,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
+static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
+		unsigned long addr, pte_t *ptep)
+{
+	ptep_set_wrprotect(mm, addr, ptep);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



From - Thu Nov 08 21:41:59 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: [PATCH v7 10/11] hugetlb: Introduce generic version of
 huge_ptep_set_access_flags
Date: Thu, 20 Sep 2018 06:03:57 +0000
Lines: 174
Approved: news@gmane.org
Message-ID: <20180920060358.16606-11-alex@ghiti.fr>
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Xref: news.gmane.org gmane.linux.ports.arm.kernel:675050 gmane.linux.ports.mips.general:66745 gmane.linux.ports.ia64:29259 gmane.linux.ports.sh.devel:57534 gmane.linux.kernel.mm:203585 gmane.linux.ports.sparc:28456 gmane.linux.kernel.cross-arch:46630 gmane.linux.ports.parisc:28986 gmane.linux.kernel:2876072 gmane.linux.ports.ppc64.devel:162764
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.kernel/675050>

arm, ia64, sh, x86 architectures use the same version
of huge_ptep_set_access_flags, so move this generic implementation
into asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Acked-by: Ingo Molnar <mingo@kernel.org> # x86
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 7 -------
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 7 -------
 arch/mips/include/asm/hugetlb.h       | 1 +
 arch/parisc/include/asm/hugetlb.h     | 1 +
 arch/powerpc/include/asm/hugetlb.h    | 1 +
 arch/sh/include/asm/hugetlb.h         | 7 -------
 arch/sparc/include/asm/hugetlb.h      | 1 +
 arch/x86/include/asm/hugetlb.h        | 7 -------
 include/asm-generic/hugetlb.h         | 9 +++++++++
 10 files changed, 14 insertions(+), 28 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 8247cd6a2ac6..54e4b097b1f5 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -37,11 +37,4 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
 	return retval;
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 #endif /* _ASM_ARM_HUGETLB_3LEVEL_H */
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index f4f69ae5466e..80887abcef7f 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -42,6 +42,7 @@ extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
 #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
 extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 			    pte_t *ptep, pte_t pte);
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index 49d1f7949f3a..e9b42750fdf5 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,13 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 3dcf5debf8c4..120adc3b2ffd 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -63,6 +63,7 @@ static inline int huge_pte_none(pte_t pte)
 	return !val || (val == (unsigned long)invalid_pte_table);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr,
 					     pte_t *ptep, pte_t pte,
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 9c3950ca2974..165b4e5a6f32 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -43,6 +43,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep);
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty);
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 2a90f387880a..d4d9cf6cb846 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -134,6 +134,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 	flush_hugetlb_page(vma, addr);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 8df4004977b9..c87195ae0cfa 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,13 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index c41754a113f3..028a1465fbe7 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -40,6 +40,7 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 	set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index a3f781f7a264..574d42eb081e 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,13 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
-					     unsigned long addr, pte_t *ptep,
-					     pte_t pte, int dirty)
-{
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return *ptep;
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 9b9039845278..f3c99a03ee83 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -110,4 +110,13 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
+static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+		unsigned long addr, pte_t *ptep,
+		pte_t pte, int dirty)
+{
+	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2

From - Thu Nov 08 21:41:59 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Alexandre Ghiti <alex@ghiti.fr>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.arm.kernel,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch
Subject: [PATCH v7 11/11] hugetlb: Introduce generic version of huge_ptep_get
Date: Thu, 20 Sep 2018 06:03:58 +0000
Lines: 180
Approved: news@gmane.org
Message-ID: <20180920060358.16606-12-alex@ghiti.fr>
References: <20180920060358.16606-1-alex@ghiti.fr>
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Xref: news.gmane.org gmane.linux.kernel:2876073 gmane.linux.kernel.mm:203586 gmane.linux.ports.arm.kernel:675051 gmane.linux.ports.ia64:29260 gmane.linux.ports.mips.general:66746 gmane.linux.ports.parisc:28987 gmane.linux.ports.ppc64.devel:162765 gmane.linux.ports.sh.devel:57535 gmane.linux.ports.sparc:28457 gmane.linux.kernel.cross-arch:46631
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2876073>

ia64, mips, parisc, powerpc, sh, sparc, x86 architectures use the
same version of huge_ptep_get, so move this generic implementation into
asm-generic/hugetlb.h.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Acked-by: Ingo Molnar <mingo@kernel.org> # x86
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 arch/arm/include/asm/hugetlb-3level.h | 1 +
 arch/arm64/include/asm/hugetlb.h      | 1 +
 arch/ia64/include/asm/hugetlb.h       | 5 -----
 arch/mips/include/asm/hugetlb.h       | 5 -----
 arch/parisc/include/asm/hugetlb.h     | 5 -----
 arch/powerpc/include/asm/hugetlb.h    | 5 -----
 arch/sh/include/asm/hugetlb.h         | 5 -----
 arch/sparc/include/asm/hugetlb.h      | 5 -----
 arch/x86/include/asm/hugetlb.h        | 5 -----
 include/asm-generic/hugetlb.h         | 7 +++++++
 10 files changed, 9 insertions(+), 35 deletions(-)

diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 54e4b097b1f5..0d9f3918fa7e 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -29,6 +29,7 @@
  * ptes.
  * (The valid bit is automatically cleared by set_pte_at for PROT_NONE ptes).
  */
+#define __HAVE_ARCH_HUGE_PTEP_GET
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	pte_t retval = *ptep;
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 80887abcef7f..fb6609875455 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -20,6 +20,7 @@
 
 #include <asm/page.h>
 
+#define __HAVE_ARCH_HUGE_PTEP_GET
 static inline pte_t huge_ptep_get(pte_t *ptep)
 {
 	return READ_ONCE(*ptep);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index e9b42750fdf5..36cc0396b214 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -27,11 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 120adc3b2ffd..425bb6fc3bda 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -82,11 +82,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 	return changed;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 165b4e5a6f32..7cb595dcb7d7 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty);
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index d4d9cf6cb846..383da1ab9e23 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -139,11 +139,6 @@ extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 				      unsigned long addr, pte_t *ptep,
 				      pte_t pte, int dirty);
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index c87195ae0cfa..6f025fe18146 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -32,11 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
 {
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 	clear_bit(PG_dcache_clean, &page->flags);
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 028a1465fbe7..3963f80d1cb3 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -53,11 +53,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 	return changed;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 574d42eb081e..7469d321f072 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -13,11 +13,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
 	return 0;
 }
 
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
-	return *ptep;
-}
-
 static inline void arch_clear_hugepage_flags(struct page *page)
 {
 }
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index f3c99a03ee83..71d7b77eea50 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -119,4 +119,11 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 }
 #endif
 
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET
+static inline pte_t huge_ptep_get(pte_t *ptep)
+{
+	return *ptep;
+}
+#endif
+
 #endif /* _ASM_GENERIC_HUGETLB_H */
-- 
2.16.2



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Hi Firoz,

On 14.09.2018 10:26, Firoz Khan wrote:
> The purpose of this patch series is:
> 1. We can easily add/modify/delete system call by changing entry 
> in syscall.tbl file. No need to manually edit many files.
> 
> 2. It is easy to unify the system call implementation across all 
> the architectures. 

I like the idea.
 
> The system call tables are in different format in all architecture 
> and it will be difficult to manually add or modify the system calls
> in the respective files manually. To make it easy by keeping a script 
> and which'll generate the header file and syscall table file so this 
> change will unify them across all architectures.
> 
> syscall.tbl contains the list of available system calls along with 
> system call number and corresponding entry point. Add a new system 
> call in this architecture will be possible by adding new entry in 
> the syscall.tbl file.
> 
> Adding a new table entry consisting of:
>         - System call number.
>         - ABI.
>         - System call name.
>         - Entry point name.
>         - Compat entry name, if required.
> 
> ARM, s390 and x86 architecuture does exist the similar support. I 
> leverage their implementation to come up with a generic solution.
> 
> I have done the same support for work for alpha, m68k, microblaze, 
> ia64, mips, powerpc, sh, sparc, and xtensa. But I started sending 
> the patch for one architecuture for review. Below mentioned git
> repository contains more details.
> Git repo:- https://github.com/frzkhn/system_call_table_generator/
> 
> Finally, this is the ground work for solving the Y2038 issue. We 
> need to add/change two dozen of system calls to solve Y2038 issue. 
> So this patch series will help to easily modify from existing 
> system call to Y2038 compatible system calls.
> 
> I started working system call table generation on 4.17-rc1. I used 
> marcin's script - https://github.com/hrw/syscalls-table to generate 
> the syscall.tbl file. And this will be the input to the system call 
> table generation script. But there are couple system call got add 
> in the latest rc release. If run Marcin's script on latest release,
> It will generate a new syscall.tbl. But I still use the old file - 
> syscall.tbl and once all review got over I'll update syscall.tbl 
> alone w.r.to the tip of the kernel. The impact of this thing, few 
> of the system call won't work. 
> 
> Firoz Khan (4):
>   parisc: Move __IGNORE* entries to non uapi header
>   parisc: Replace __NR_Linux_syscalls macro with __NR_syscalls
>   parisc: Add system call table generation support
>   parisc: uapi header and system call table file generation
> 
>  arch/parisc/Makefile                       |   4 +
>  arch/parisc/include/asm/Kbuild             |   3 +
>  arch/parisc/include/asm/unistd.h           |   8 +
>  arch/parisc/include/uapi/asm/Kbuild        |   2 +
>  arch/parisc/include/uapi/asm/unistd.h      | 377 +----------------------
>  arch/parisc/kernel/syscall.S               |  14 +-
>  arch/parisc/kernel/syscall_table.S         | 459 -----------------------------
>  arch/parisc/kernel/syscall_table_32.S      |  11 +
>  arch/parisc/kernel/syscall_table_64.S      |  19 ++
>  arch/parisc/kernel/syscalls/Makefile       |  52 ++++
>  arch/parisc/kernel/syscalls/syscall_32.tbl | 358 ++++++++++++++++++++++
>  arch/parisc/kernel/syscalls/syscall_64.tbl | 357 ++++++++++++++++++++++
>  arch/parisc/kernel/syscalls/syscallhdr.sh  |  38 +++
>  arch/parisc/kernel/syscalls/syscalltbl.sh  |  36 +++
>  14 files changed, 896 insertions(+), 842 deletions(-)
>  delete mode 100644 arch/parisc/kernel/syscall_table.S
>  create mode 100644 arch/parisc/kernel/syscall_table_32.S
>  create mode 100644 arch/parisc/kernel/syscall_table_64.S
>  create mode 100644 arch/parisc/kernel/syscalls/Makefile
>  create mode 100644 arch/parisc/kernel/syscalls/syscall_32.tbl
>  create mode 100644 arch/parisc/kernel/syscalls/syscall_64.tbl
>  create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
>  create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh

Your parisc patches don't apply any longer.
If you update them (with the feedback given by others), I'm happy
to test your patch again on parisc.

Helge


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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038
Subject: Re: [PATCH 0/4] System call table generation support
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Cc: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Thomas Gleixner <tglx@linutronix.de>,
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Hi Helge,

On Mon, 24 Sep 2018 at 01:18, Helge Deller <deller@gmx.de> wrote:
>
> Hi Firoz,
>
> On 14.09.2018 10:26, Firoz Khan wrote:
> > The purpose of this patch series is:
> > 1. We can easily add/modify/delete system call by changing entry
> > in syscall.tbl file. No need to manually edit many files.
> >
> > 2. It is easy to unify the system call implementation across all
> > the architectures.
>
> I like the idea.
>
> > The system call tables are in different format in all architecture
> > and it will be difficult to manually add or modify the system calls
> > in the respective files manually. To make it easy by keeping a script
> > and which'll generate the header file and syscall table file so this
> > change will unify them across all architectures.
> >
> > syscall.tbl contains the list of available system calls along with
> > system call number and corresponding entry point. Add a new system
> > call in this architecture will be possible by adding new entry in
> > the syscall.tbl file.
> >
> > Adding a new table entry consisting of:
> >         - System call number.
> >         - ABI.
> >         - System call name.
> >         - Entry point name.
> >         - Compat entry name, if required.
> >
> > ARM, s390 and x86 architecuture does exist the similar support. I
> > leverage their implementation to come up with a generic solution.
> >
> > I have done the same support for work for alpha, m68k, microblaze,
> > ia64, mips, powerpc, sh, sparc, and xtensa. But I started sending
> > the patch for one architecuture for review. Below mentioned git
> > repository contains more details.
> > Git repo:- https://github.com/frzkhn/system_call_table_generator/
> >
> > Finally, this is the ground work for solving the Y2038 issue. We
> > need to add/change two dozen of system calls to solve Y2038 issue.
> > So this patch series will help to easily modify from existing
> > system call to Y2038 compatible system calls.
> >
> > I started working system call table generation on 4.17-rc1. I used
> > marcin's script - https://github.com/hrw/syscalls-table to generate
> > the syscall.tbl file. And this will be the input to the system call
> > table generation script. But there are couple system call got add
> > in the latest rc release. If run Marcin's script on latest release,
> > It will generate a new syscall.tbl. But I still use the old file -
> > syscall.tbl and once all review got over I'll update syscall.tbl
> > alone w.r.to the tip of the kernel. The impact of this thing, few
> > of the system call won't work.
> >
> > Firoz Khan (4):
> >   parisc: Move __IGNORE* entries to non uapi header
> >   parisc: Replace __NR_Linux_syscalls macro with __NR_syscalls
> >   parisc: Add system call table generation support
> >   parisc: uapi header and system call table file generation
> >
> >  arch/parisc/Makefile                       |   4 +
> >  arch/parisc/include/asm/Kbuild             |   3 +
> >  arch/parisc/include/asm/unistd.h           |   8 +
> >  arch/parisc/include/uapi/asm/Kbuild        |   2 +
> >  arch/parisc/include/uapi/asm/unistd.h      | 377 +----------------------
> >  arch/parisc/kernel/syscall.S               |  14 +-
> >  arch/parisc/kernel/syscall_table.S         | 459 -----------------------------
> >  arch/parisc/kernel/syscall_table_32.S      |  11 +
> >  arch/parisc/kernel/syscall_table_64.S      |  19 ++
> >  arch/parisc/kernel/syscalls/Makefile       |  52 ++++
> >  arch/parisc/kernel/syscalls/syscall_32.tbl | 358 ++++++++++++++++++++++
> >  arch/parisc/kernel/syscalls/syscall_64.tbl | 357 ++++++++++++++++++++++
> >  arch/parisc/kernel/syscalls/syscallhdr.sh  |  38 +++
> >  arch/parisc/kernel/syscalls/syscalltbl.sh  |  36 +++
> >  14 files changed, 896 insertions(+), 842 deletions(-)
> >  delete mode 100644 arch/parisc/kernel/syscall_table.S
> >  create mode 100644 arch/parisc/kernel/syscall_table_32.S
> >  create mode 100644 arch/parisc/kernel/syscall_table_64.S
> >  create mode 100644 arch/parisc/kernel/syscalls/Makefile
> >  create mode 100644 arch/parisc/kernel/syscalls/syscall_32.tbl
> >  create mode 100644 arch/parisc/kernel/syscalls/syscall_64.tbl
> >  create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
> >  create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh
>
> Your parisc patches don't apply any longer.
> If you update them (with the feedback given by others), I'm happy
> to test your patch again on parisc.

Sure. Thanks for your support!
I planned to post few other things within couple of days.
Hopefully I can update parisc patches this week!

- Firoz

>
> Helge


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On Mon, Sep 17, 2018 at 9:46 PM Helge Deller <deller@gmx.de> wrote:
> On 13.09.2018 17:59, Arnd Bergmann wrote:
> > There are only two 64-bit architecture ports that have a 32-bit
> > suseconds_t: sparc64 and parisc64. I've encountered a number of problems
> > with this, while trying to get a proper 64-bit time_t working on 32-bit
> > architectures. Having a 32-bit suseconds_t combined with a 64-bit time_t
> > means that we get extra padding in data structures that may leak kernel
> > stack data to user space, and it breaks all code that assumes that
> > timespec and timeval have the same layout.
> >
> > While we can't change sparc64, it seems that glibc on parisc64 has always
> > set suseconds_t to 'long', and the current version would give incorrect
> > results for gettimeofday() and many other interfaces: timestamps passed
> > from user space into the kernel result in tv_usec being always zero
> > (the lower bits contain the intended value but are ignored) while data
> > passed from the kernel to user space contains either zeroes or random
> > data in tv_usec.

[back from traveling now, sorry for the delay in replying]

> Should this wrong behavior be visible with 32-bit userspace or
> with 64-bit userspace (or both)?
> I didn't noticed such wrong behavior yet.

Only 64-bit user space.

> Can you suggest some test programs to verify?
> LTP seems to be correct.

A simple 64-bit gettimeofday() should report incorrect
nanoseconds using the upstream glibc implementation.

> > Based on that, it seems best to change the user API in the kernel in
> > an incompatible way to match what glibc expects.
>
> Basically that sounds the right way to go, but as said before,
> I didn't see such issues.
>
> > Note that the distros I could find (gentoo and debian) all just
> > have 32-bit user space, which does not suffer from this problem.
>
> That's correct.
> Kernel can be 32- or 64-bit, but userspace is currentl 32-bit only.
>
> So, breaking any 64-bit userspace is OK, since we don't have it yet.
> Breaking 32-bit userspace needs some thoughts...

Ok.

     Arnd


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On 25.09.2018 12:53, Arnd Bergmann wrote:
> On Mon, Sep 17, 2018 at 9:46 PM Helge Deller <deller@gmx.de> wrote:
>> On 13.09.2018 17:59, Arnd Bergmann wrote:
>>> There are only two 64-bit architecture ports that have a 32-bit
>>> suseconds_t: sparc64 and parisc64. I've encountered a number of problems
>>> with this, while trying to get a proper 64-bit time_t working on 32-bit
>>> architectures. Having a 32-bit suseconds_t combined with a 64-bit time_t
>>> means that we get extra padding in data structures that may leak kernel
>>> stack data to user space, and it breaks all code that assumes that
>>> timespec and timeval have the same layout.
>>>
>>> While we can't change sparc64, it seems that glibc on parisc64 has always
>>> set suseconds_t to 'long', and the current version would give incorrect
>>> results for gettimeofday() and many other interfaces: timestamps passed
>>> from user space into the kernel result in tv_usec being always zero
>>> (the lower bits contain the intended value but are ignored) while data
>>> passed from the kernel to user space contains either zeroes or random
>>> data in tv_usec.
> 
> [back from traveling now, sorry for the delay in replying]
> 
>> Should this wrong behavior be visible with 32-bit userspace or
>> with 64-bit userspace (or both)?
>> I didn't noticed such wrong behavior yet.
> 
> Only 64-bit user space.
> 
...
> A simple 64-bit gettimeofday() should report incorrect
> nanoseconds using the upstream glibc implementation.

Yes, you are right.
Since we don't have any 64-bit userspace yet, it's safe to fix it now as you suggested.
I've added your patch as is to my for-next tree and tagged it for stable-tree.

Thanks for catching this!

Helge


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This Patchset changes some driver's Makefile to allow them building 
using the command 'make drivers/DRIVERNAME', if compatible.

The changed drivers would return error if the above command was run
on them, after an x86 allyesconfig.

The main reason of this patchset is to allow building lists of
drivers looking for warnings and errors to be fixed.

My main objective is to allow developers with low processing power
to do changes in the kernel and look bugs using free services like
GiltabCI. 

If there is any interest helping/using this, I have a prototype in
https://gitlab.com/LeoBras/linux-next.

Leonardo Brás (7):
  drivers: dio: Avoids building driver if CONFIG_DIO is disabled
  drivers: nubus: Avoids building driver if CONFIG_NUBUS is disabled
  drivers: parisc: Avoids building driver if CONFIG_PARISC is disabled
  drivers: zorro: Avoids building proc.o if CONFIG_ZORRO is disabled
  drivers: s390: Avoids building drivers if ARCH is not s390.
  drivers: oprofile: Avoids building driver from direct make command
  drivers: hwtracing: Adds Makefile to enable building from directory.

 drivers/Makefile           | 4 +---
 drivers/dio/Makefile       | 2 +-
 drivers/hwtracing/Makefile | 3 +++
 drivers/nubus/Makefile     | 6 +++---
 drivers/oprofile/Makefile  | 1 +
 drivers/parisc/Makefile    | 2 +-
 drivers/s390/Makefile      | 8 ++++----
 drivers/zorro/Makefile     | 2 +-
 8 files changed, 15 insertions(+), 13 deletions(-)
 create mode 100644 drivers/hwtracing/Makefile
 create mode 100644 drivers/oprofile/Makefile

-- 
2.19.0



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Avoids building driver if 'make drivers/dio/' is called and
CONFIG_DIO is disabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/dio/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dio/Makefile b/drivers/dio/Makefile
index ae92d17083f2..f5cffe232448 100644
--- a/drivers/dio/Makefile
+++ b/drivers/dio/Makefile
@@ -2,4 +2,4 @@
 # Makefile for the linux kernel.
 #
 
-obj-y := dio.o dio-driver.o dio-sysfs.o
+obj-$(CONFIG_DIO) := dio.o dio-driver.o dio-sysfs.o
\ No newline at end of file
-- 
2.19.0



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Avoids building driver if 'make drivers/nubus/' is called and
CONFIG_NUBUS is disabled.
Avoids building proc.o if CONFIG_PROC_FS is enabled but
CONFIG_NUBUS is disabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/nubus/Makefile | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/nubus/Makefile b/drivers/nubus/Makefile
index 6d063cde39d1..827301c4a84f 100644
--- a/drivers/nubus/Makefile
+++ b/drivers/nubus/Makefile
@@ -2,6 +2,6 @@
 # Makefile for the nubus specific drivers.
 #
 
-obj-y := nubus.o bus.o
-
-obj-$(CONFIG_PROC_FS) += proc.o
+obj-$(CONFIG_NUBUS) := nubus.o
+nubus-y := bus.o
+nubus-$(CONFIG_PROC_FS) += proc.o
-- 
2.19.0



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Avoids building driver if 'make drivers/parisc/' is called and
CONFIG_PARISC is disabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/parisc/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/Makefile b/drivers/parisc/Makefile
index 3cd5e6cb8478..80049d763aa0 100644
--- a/drivers/parisc/Makefile
+++ b/drivers/parisc/Makefile
@@ -24,5 +24,5 @@ obj-$(CONFIG_EISA)		+= eisa.o eisa_enumerator.o eisa_eeprom.o
 obj-$(CONFIG_SUPERIO)		+= superio.o
 obj-$(CONFIG_CHASSIS_LCD_LED)	+= led.o
 obj-$(CONFIG_PDC_STABLE)	+= pdc_stable.o
-obj-y				+= power.o
+obj-$(CONFIG_PARISC)		+= power.o
 
-- 
2.19.0



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Subject: [PATCH 4/7] drivers: zorro: Avoids building proc.o if CONFIG_ZORRO
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Avoids building proc.o if 'make drivers/zorro/' is called and
CONFIG_ZORRO is disabled, even if CONFIG_PROC_FS is enabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/zorro/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/zorro/Makefile b/drivers/zorro/Makefile
index b360ac4ea846..4e5c7045ac7a 100644
--- a/drivers/zorro/Makefile
+++ b/drivers/zorro/Makefile
@@ -4,8 +4,8 @@
 #
 
 obj-$(CONFIG_ZORRO)	+= zorro.o zorro-driver.o zorro-sysfs.o
-obj-$(CONFIG_PROC_FS)	+= proc.o
 obj-$(CONFIG_ZORRO_NAMES) +=  names.o
+zorro-$(CONFIG_PROC_FS)	+= proc.o
 
 hostprogs-y 		:= gen-devlist
 
-- 
2.19.0



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Subject: [PATCH 5/7] drivers: s390: Avoids building drivers if ARCH is not
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Avoids building s390 drivers if 'make drivers/s390/' is called but
ARCH is not s390.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/s390/Makefile | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/s390/Makefile b/drivers/s390/Makefile
index a863b0462b43..0575f02dba45 100644
--- a/drivers/s390/Makefile
+++ b/drivers/s390/Makefile
@@ -3,7 +3,7 @@
 # Makefile for the S/390 specific device drivers
 #
 
-obj-y += cio/ block/ char/ crypto/ net/ scsi/ virtio/
-
-drivers-y += drivers/s390/built-in.a
-
+ifeq ($(ARCH),s390)
+	obj-y += cio/ block/ char/ crypto/ net/ scsi/ virtio/
+	drivers-y += drivers/s390/built-in.a
+endif
-- 
2.19.0



From - Thu Nov 08 21:42:00 2018
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Subject: [PATCH 6/7] drivers: oprofile: Avoids building driver from direct
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Creates new Makefile to avoid building driver if
'make drivers/oprofile/' is called directly.

This driver is usually built from arch/$ARCH and seems to have
no meaning building alone.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/oprofile/Makefile | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 drivers/oprofile/Makefile

diff --git a/drivers/oprofile/Makefile b/drivers/oprofile/Makefile
new file mode 100644
index 000000000000..6b36c93e9762
--- /dev/null
+++ b/drivers/oprofile/Makefile
@@ -0,0 +1 @@
+#Does nothing, since the source is called from arch/$ARCH/ tree.
\ No newline at end of file
-- 
2.19.0



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Adds Makefile to enable building the driver using
'make drivers/hwtracing/'.
Changes drivers/Makefile to call the new Makefile directly.
It enables user building this driver without building the whole drivers/
subtree.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/Makefile           | 4 +---
 drivers/hwtracing/Makefile | 3 +++
 2 files changed, 4 insertions(+), 3 deletions(-)
 create mode 100644 drivers/hwtracing/Makefile

diff --git a/drivers/Makefile b/drivers/Makefile
index 578f469f72fb..a237be6b602f 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -174,9 +174,7 @@ obj-$(CONFIG_MCB)		+= mcb/
 obj-$(CONFIG_PERF_EVENTS)	+= perf/
 obj-$(CONFIG_RAS)		+= ras/
 obj-$(CONFIG_THUNDERBOLT)	+= thunderbolt/
-obj-$(CONFIG_CORESIGHT)		+= hwtracing/coresight/
-obj-y				+= hwtracing/intel_th/
-obj-$(CONFIG_STM)		+= hwtracing/stm/
+obj-y				+= hwtracing/
 obj-$(CONFIG_ANDROID)		+= android/
 obj-$(CONFIG_NVMEM)		+= nvmem/
 obj-$(CONFIG_FPGA)		+= fpga/
diff --git a/drivers/hwtracing/Makefile b/drivers/hwtracing/Makefile
new file mode 100644
index 000000000000..fe5773caec49
--- /dev/null
+++ b/drivers/hwtracing/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_CORESIGHT)		+= coresight/
+obj-y				+= intel_th/
+obj-$(CONFIG_STM)		+= stm/
-- 
2.19.0



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Subject: Re: [PATCH] parisc: Remove PTE load and fault check from L2_ptep
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Hi,

On Sun, Sep 23, 2018 at 10:55:18AM -0400, John David Anglin wrote:
> This change removes the PTE load and present check from the L2_ptep
> macro.  The load and check for kernel pages is now done in the tlb_lock
> macro.  This avoids a double load and check for user pages.  The load
> and check for user pages is now done inside the lock so the fault
> handler can't be called while the entry is being updated.
> 

This patch causes my parisc qemu tests to fail.
Unfortunately I don't have any useful log output; the failure
is silent. Reverting the patch fixes the problem.

Guenter

> Signed-off-by: John David Anglin <dave.anglin@bell.net>
> Signed-off-by: Helge Deller <deller@gmx.de>
> ---
>  arch/parisc/kernel/entry.S | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
> index eeee1d2c4b8e..3371472379a6 100644
> --- a/arch/parisc/kernel/entry.S
> +++ b/arch/parisc/kernel/entry.S
> @@ -431,8 +431,6 @@
>  	extru		\va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
>  	dep		%r0,31,PAGE_SHIFT,\pmd  /* clear offset */
>  	shladd		\index,BITS_PER_PTE_ENTRY,\pmd,\pmd /* pmd is now pte */
> -	LDREG		%r0(\pmd),\pte
> -	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
>  	.endm
>  
>  	/* Look up PTE in a 3-Level scheme.
> @@ -463,7 +461,7 @@
>  	L2_ptep		\pgd,\pte,\index,\va,\fault
>  	.endm
>  
> -	/* Acquire pa_tlb_lock lock and recheck page is still present. */
> +	/* Acquire pa_tlb_lock lock and check page is present. */
>  	.macro		tlb_lock	spc,ptp,pte,tmp,tmp1,fault
>  #ifdef CONFIG_SMP
>  	cmpib,COND(=),n	0,\spc,2f
> @@ -472,10 +470,12 @@
>  	cmpib,COND(=)	0,\tmp1,1b
>  	nop
>  	LDREG		0(\ptp),\pte
> -	bb,<,n		\pte,_PAGE_PRESENT_BIT,2f
> +	bb,<,n		\pte,_PAGE_PRESENT_BIT,3f
>  	b		\fault
>  	stw		 \spc,0(\tmp)
> -2:
> +2:	LDREG		0(\ptp),\pte
> +	bb,>=,n		\pte,_PAGE_PRESENT_BIT,\fault
> +3:
>  #endif
>  	.endm
>  
> -- 
> 2.7.4


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From: Finn Thain <fthain@telegraphics.com.au>
Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: Re: [PATCH 2/7] drivers: nubus: Avoids building driver if CONFIG_NUBUS
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Date: Wed, 26 Sep 2018 16:45:28 +1000 (AEST)
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To: Leonardo Bras <leobras.c@gmail.com>
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On Tue, 25 Sep 2018, Leonardo Bras wrote:

> Avoids building driver if 'make drivers/nubus/' is called and
> CONFIG_NUBUS is disabled.
> Avoids building proc.o if CONFIG_PROC_FS is enabled but
> CONFIG_NUBUS is disabled.
> 
> Signed-off-by: Leonardo Bras <leobras.c@gmail.com>
> ---
>  drivers/nubus/Makefile | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/nubus/Makefile b/drivers/nubus/Makefile
> index 6d063cde39d1..827301c4a84f 100644
> --- a/drivers/nubus/Makefile
> +++ b/drivers/nubus/Makefile
> @@ -2,6 +2,6 @@
>  # Makefile for the nubus specific drivers.
>  #
>  
> -obj-y := nubus.o bus.o
> -
> -obj-$(CONFIG_PROC_FS) += proc.o
> +obj-$(CONFIG_NUBUS) := nubus.o
> +nubus-y := bus.o
> +nubus-$(CONFIG_PROC_FS) += proc.o
> 

Did you build this for m68k? It doesn't link for me.

  MODPOST vmlinux.o
drivers/nubus/bus.o: In function `nubus_device_release':
bus.c:(.text+0xd0): undefined reference to `nubus_func_rsrcs'
bus.c:(.text+0xe0): undefined reference to `nubus_func_rsrcs'
bus.c:(.text+0x118): undefined reference to `nubus_func_rsrcs'
bus.c:(.text+0xc2): undefined reference to `nubus_func_rsrcs'
drivers/nubus/proc.o: In function `nubus_devices_proc_show':
proc.c:(.text+0xa): undefined reference to `nubus_first_rsrc_or_null'
proc.c:(.text+0x1c): undefined reference to `nubus_next_rsrc_or_null'
drivers/nubus/proc.o: In function `nubus_proc_rsrc_show':
proc.c:(.text+0x190): undefined reference to `nubus_seq_write_rsrc_mem'
drivers/nubus/proc.o: In function `nubus_proc_add_rsrc_mem':
proc.c:(.text+0x24c): undefined reference to `nubus_dirptr'

Patch 4/7 (drivers/zorro) also causes 'undefined reference' errors. I 
didn't test the others.

-- 


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Hi Leonardo,

Thanks for your patch series!

On Wed, Sep 26, 2018 at 3:51 AM Leonardo Brás <leobras.c@gmail.com> wrote:
> This Patchset changes some driver's Makefile to allow them building
> using the command 'make drivers/DRIVERNAME', if compatible.

Please note that running "make drivers/DRIVERNAME" assumes that you know
exactly what you're doing. In the normal build process, you should just run
"make".

> The changed drivers would return error if the above command was run
> on them, after an x86 allyesconfig.

That is expected, as the DIO, NuBus, and Zorro buses, and PA-RISC and
S390 specific drivers are not supported on x86.
That is also the reason why you cannot enable support for them when configuring
your kernel.

If you want to enable e.g. NuBus support, you have to configure a kernel
for m68k/Mac, and (cross)compile it.

At https://mirrors.edge.kernel.org/pub/tools/crosstool/, you can find cross
compiler binaries for download.  Altermatively, your Linux distribution may
provide cross compiler packages.

> The main reason of this patchset is to allow building lists of
> drivers looking for warnings and errors to be fixed.

We already have COMPILE_TEST for that.
If you want to increase compile coverage, please look into adding
"|| COMPILE_TEST" dependencies to subsystems and drivers that still lack it,
and (if needed) modifying the code to make the result build.

Thanks!

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds


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Leonardo Brás wrote:
> Creates new Makefile to avoid building driver if
> 'make drivers/oprofile/' is called directly.
> 
> This driver is usually built from arch/$ARCH and seems to have
> no meaning building alone.
> 
> Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
> ---
>  drivers/oprofile/Makefile | 1 +
>  1 file changed, 1 insertion(+)
>  create mode 100644 drivers/oprofile/Makefile
> 
> diff --git a/drivers/oprofile/Makefile b/drivers/oprofile/Makefile
> new file mode 100644
> index 000000000000..6b36c93e9762
> --- /dev/null
> +++ b/drivers/oprofile/Makefile
> @@ -0,0 +1 @@
> +#Does nothing, since the source is called from arch/$ARCH/ tree.
> \ No newline at end of file
     ^^^^^^^^^^^^^^^^^^^^^^^^^

Is that intentional or bogus?

Eike


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On Fri 14-09-18 15:10:17, Mike Rapoport wrote:
> All achitectures select NO_BOOTMEM which essentially becomes 'Y' for any
> kernel configuration and therefore it can be removed.

git grep suggests that DEFERRED_STRUCT_PAGE_INIT still depends on
NO_BOOTMEM but I have a vague feeling that I've seen a patch to address
that. It would be great to have it folded to this one.

> Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>

Acked-by: Michal Hocko <mhocko@suse.com>
-- 
Michal Hocko
SUSE Labs


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On Fri 14-09-18 15:10:18, Mike Rapoport wrote:
> All architecures use memblock for early memory management. There is no need
> for the CONFIG_HAVE_MEMBLOCK configuration option.

git grep says
arch/csky/Kconfig:  select HAVE_MEMBLOCK

> Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>

Other than that
Acked-by: Michal Hocko <mhocko@suse.com>
-- 
Michal Hocko
SUSE Labs


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Subject: Re: [PATCH 05/30] mm: nobootmem: remove dead code
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On Fri 14-09-18 15:10:20, Mike Rapoport wrote:
> Several bootmem functions and macros are not used. Remove them.
> 
> Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>

Acked-by: Michal Hocko <mhocko@suse.com>
-- 
Michal Hocko
SUSE Labs


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Subject: Re: [PATCH 07/30] memblock: remove _virt from APIs returning virtual
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On Fri 14-09-18 15:10:22, Mike Rapoport wrote:
> The conversion is done using
> 
> sed -i 's@memblock_virt_alloc@memblock_alloc@g' \
> 	$(git grep -l memblock_virt_alloc)
> 
> Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>

As I've said earlier, I am not entirely thrilled by this change. It is
unnecessary churn. So if nothing else just add a note _why_ you think
this is better.
-- 
Michal Hocko
SUSE Labs


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Subject: Re: [PATCH 14/30] memblock: add align parameter to
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On Fri 14-09-18 15:10:29, Mike Rapoport wrote:
> With the align parameter memblock_alloc_node() can be used as drop in
> replacement for alloc_bootmem_pages_node() and __alloc_bootmem_node(),
> which is done in the following patches.

/me confused. Why do we need this patch at all? Maybe it should be
folded into the later patch you are refereing here?

> Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
> ---
>  include/linux/bootmem.h | 4 ++--
>  mm/sparse.c             | 2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
> index 7d91f0f..3896af2 100644
> --- a/include/linux/bootmem.h
> +++ b/include/linux/bootmem.h
> @@ -157,9 +157,9 @@ static inline void * __init memblock_alloc_from_nopanic(
>  }
>  
>  static inline void * __init memblock_alloc_node(
> -						phys_addr_t size, int nid)
> +		phys_addr_t size, phys_addr_t align, int nid)
>  {
> -	return memblock_alloc_try_nid(size, 0, BOOTMEM_LOW_LIMIT,
> +	return memblock_alloc_try_nid(size, align, BOOTMEM_LOW_LIMIT,
>  					    BOOTMEM_ALLOC_ACCESSIBLE, nid);
>  }
>  
> diff --git a/mm/sparse.c b/mm/sparse.c
> index 04e97af..509828f 100644
> --- a/mm/sparse.c
> +++ b/mm/sparse.c
> @@ -68,7 +68,7 @@ static noinline struct mem_section __ref *sparse_index_alloc(int nid)
>  	if (slab_is_available())
>  		section = kzalloc_node(array_size, GFP_KERNEL, nid);
>  	else
> -		section = memblock_alloc_node(array_size, nid);
> +		section = memblock_alloc_node(array_size, 0, nid);
>  
>  	return section;
>  }
> -- 
> 2.7.4
> 

-- 
Michal Hocko
SUSE Labs


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On Wed 26-09-18 11:31:27, Michal Hocko wrote:
> On Fri 14-09-18 15:10:29, Mike Rapoport wrote:
> > With the align parameter memblock_alloc_node() can be used as drop in
> > replacement for alloc_bootmem_pages_node() and __alloc_bootmem_node(),
> > which is done in the following patches.
> 
> /me confused. Why do we need this patch at all? Maybe it should be
> folded into the later patch you are refereing here?

OK, I can see 1536927045-23536-17-git-send-email-rppt@linux.vnet.ibm.com
now. If you are going to repost for whatever reason please merge those
two. Also I would get rid of the implicit "0 implies SMP_CACHE_BYTES"
behavior. It is subtle and you have to dig deep to find that out. Why
not make it explicit?
-- 
Michal Hocko
SUSE Labs


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Subject: Re: [PATCH 16/30] memblock: replace __alloc_bootmem_node with
 appropriate memblock_ API
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To: Mike Rapoport <rppt@linux.vnet.ibm.com>
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On Fri 14-09-18 15:10:31, Mike Rapoport wrote:
> Use memblock_alloc_try_nid whenever goal (i.e. minimal address is
> specified) and memblock_alloc_node otherwise.
> 
> Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>

Acked-by: Michal Hocko <mhocko@suse.com>
-- 
Michal Hocko
SUSE Labs


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Subject: Re: [PATCH 21/30] memblock: replace alloc_bootmem with memblock_alloc
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To: Mike Rapoport <rppt@linux.vnet.ibm.com>
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On Fri 14-09-18 15:10:36, Mike Rapoport wrote:
> The alloc_bootmem(size) is a shortcut for allocation of SMP_CACHE_BYTES
> aligned memory. When the align parameter of memblock_alloc() is 0, the
> alignment is implicitly set to SMP_CACHE_BYTES and thus alloc_bootmem(size)
> and memblock_alloc(size, 0) are equivalent.
> 
> The conversion is done using the following semantic patch:
> 
> @@
> expression size;
> @@
> - alloc_bootmem(size)
> + memblock_alloc(size, 0)

As mentioned in other email, please make it explicit SMP_CACHE_BYTES.

> Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
> ---
>  arch/alpha/kernel/core_marvel.c     | 4 ++--
>  arch/alpha/kernel/pci-noop.c        | 4 ++--
>  arch/alpha/kernel/pci.c             | 4 ++--
>  arch/alpha/kernel/pci_iommu.c       | 4 ++--
>  arch/ia64/kernel/mca.c              | 4 ++--
>  arch/ia64/mm/tlb.c                  | 4 ++--
>  arch/m68k/sun3/sun3dvma.c           | 3 ++-
>  arch/microblaze/mm/init.c           | 2 +-
>  arch/mips/kernel/setup.c            | 2 +-
>  arch/um/drivers/net_kern.c          | 2 +-
>  arch/um/drivers/vector_kern.c       | 2 +-
>  arch/um/kernel/initrd.c             | 2 +-
>  arch/x86/kernel/acpi/boot.c         | 3 ++-
>  arch/x86/kernel/apic/io_apic.c      | 2 +-
>  arch/x86/kernel/e820.c              | 2 +-
>  arch/x86/platform/olpc/olpc_dt.c    | 2 +-
>  arch/xtensa/platforms/iss/network.c | 2 +-
>  drivers/macintosh/smu.c             | 2 +-
>  init/main.c                         | 4 ++--
>  19 files changed, 28 insertions(+), 26 deletions(-)
> 
> diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c
> index bdebb8c2..1f00c94 100644
> --- a/arch/alpha/kernel/core_marvel.c
> +++ b/arch/alpha/kernel/core_marvel.c
> @@ -82,7 +82,7 @@ mk_resource_name(int pe, int port, char *str)
>  	char *name;
>  	
>  	sprintf(tmp, "PCI %s PE %d PORT %d", str, pe, port);
> -	name = alloc_bootmem(strlen(tmp) + 1);
> +	name = memblock_alloc(strlen(tmp) + 1, 0);
>  	strcpy(name, tmp);
>  
>  	return name;
> @@ -117,7 +117,7 @@ alloc_io7(unsigned int pe)
>  		return NULL;
>  	}
>  
> -	io7 = alloc_bootmem(sizeof(*io7));
> +	io7 = memblock_alloc(sizeof(*io7), 0);
>  	io7->pe = pe;
>  	raw_spin_lock_init(&io7->irq_lock);
>  
> diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
> index c7c5879..59cbfc2 100644
> --- a/arch/alpha/kernel/pci-noop.c
> +++ b/arch/alpha/kernel/pci-noop.c
> @@ -33,7 +33,7 @@ alloc_pci_controller(void)
>  {
>  	struct pci_controller *hose;
>  
> -	hose = alloc_bootmem(sizeof(*hose));
> +	hose = memblock_alloc(sizeof(*hose), 0);
>  
>  	*hose_tail = hose;
>  	hose_tail = &hose->next;
> @@ -44,7 +44,7 @@ alloc_pci_controller(void)
>  struct resource * __init
>  alloc_resource(void)
>  {
> -	return alloc_bootmem(sizeof(struct resource));
> +	return memblock_alloc(sizeof(struct resource), 0);
>  }
>  
>  SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, bus,
> diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
> index c668c3b..4cc3eb9 100644
> --- a/arch/alpha/kernel/pci.c
> +++ b/arch/alpha/kernel/pci.c
> @@ -392,7 +392,7 @@ alloc_pci_controller(void)
>  {
>  	struct pci_controller *hose;
>  
> -	hose = alloc_bootmem(sizeof(*hose));
> +	hose = memblock_alloc(sizeof(*hose), 0);
>  
>  	*hose_tail = hose;
>  	hose_tail = &hose->next;
> @@ -403,7 +403,7 @@ alloc_pci_controller(void)
>  struct resource * __init
>  alloc_resource(void)
>  {
> -	return alloc_bootmem(sizeof(struct resource));
> +	return memblock_alloc(sizeof(struct resource), 0);
>  }
>  
>  
> diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
> index 0c05493..5d178c7 100644
> --- a/arch/alpha/kernel/pci_iommu.c
> +++ b/arch/alpha/kernel/pci_iommu.c
> @@ -79,7 +79,7 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base,
>  		printk("%s: couldn't allocate arena from node %d\n"
>  		       "    falling back to system-wide allocation\n",
>  		       __func__, nid);
> -		arena = alloc_bootmem(sizeof(*arena));
> +		arena = memblock_alloc(sizeof(*arena), 0);
>  	}
>  
>  	arena->ptes = memblock_alloc_node(sizeof(*arena), align, nid);
> @@ -92,7 +92,7 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base,
>  
>  #else /* CONFIG_DISCONTIGMEM */
>  
> -	arena = alloc_bootmem(sizeof(*arena));
> +	arena = memblock_alloc(sizeof(*arena), 0);
>  	arena->ptes = memblock_alloc_from(mem_size, align, 0);
>  
>  #endif /* CONFIG_DISCONTIGMEM */
> diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
> index 5586926..7120976 100644
> --- a/arch/ia64/kernel/mca.c
> +++ b/arch/ia64/kernel/mca.c
> @@ -361,9 +361,9 @@ static ia64_state_log_t ia64_state_log[IA64_MAX_LOG_TYPES];
>  
>  #define IA64_LOG_ALLOCATE(it, size) \
>  	{ia64_state_log[it].isl_log[IA64_LOG_CURR_INDEX(it)] = \
> -		(ia64_err_rec_t *)alloc_bootmem(size); \
> +		(ia64_err_rec_t *)memblock_alloc(size, 0); \
>  	ia64_state_log[it].isl_log[IA64_LOG_NEXT_INDEX(it)] = \
> -		(ia64_err_rec_t *)alloc_bootmem(size);}
> +		(ia64_err_rec_t *)memblock_alloc(size, 0);}
>  #define IA64_LOG_LOCK_INIT(it) spin_lock_init(&ia64_state_log[it].isl_lock)
>  #define IA64_LOG_LOCK(it)      spin_lock_irqsave(&ia64_state_log[it].isl_lock, s)
>  #define IA64_LOG_UNLOCK(it)    spin_unlock_irqrestore(&ia64_state_log[it].isl_lock,s)
> diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
> index acf10eb..5554863 100644
> --- a/arch/ia64/mm/tlb.c
> +++ b/arch/ia64/mm/tlb.c
> @@ -59,8 +59,8 @@ struct ia64_tr_entry *ia64_idtrs[NR_CPUS];
>  void __init
>  mmu_context_init (void)
>  {
> -	ia64_ctx.bitmap = alloc_bootmem((ia64_ctx.max_ctx+1)>>3);
> -	ia64_ctx.flushmap = alloc_bootmem((ia64_ctx.max_ctx+1)>>3);
> +	ia64_ctx.bitmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3, 0);
> +	ia64_ctx.flushmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3, 0);
>  }
>  
>  /*
> diff --git a/arch/m68k/sun3/sun3dvma.c b/arch/m68k/sun3/sun3dvma.c
> index 8546922..72d9458 100644
> --- a/arch/m68k/sun3/sun3dvma.c
> +++ b/arch/m68k/sun3/sun3dvma.c
> @@ -267,7 +267,8 @@ void __init dvma_init(void)
>  
>  	list_add(&(hole->list), &hole_list);
>  
> -	iommu_use = alloc_bootmem(IOMMU_TOTAL_ENTRIES * sizeof(unsigned long));
> +	iommu_use = memblock_alloc(IOMMU_TOTAL_ENTRIES * sizeof(unsigned long),
> +				   0);
>  
>  	dvma_unmap_iommu(DVMA_START, DVMA_SIZE);
>  
> diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
> index df6de7c..8c7f074 100644
> --- a/arch/microblaze/mm/init.c
> +++ b/arch/microblaze/mm/init.c
> @@ -377,7 +377,7 @@ void * __ref zalloc_maybe_bootmem(size_t size, gfp_t mask)
>  	if (mem_init_done)
>  		p = kzalloc(size, mask);
>  	else {
> -		p = alloc_bootmem(size);
> +		p = memblock_alloc(size, 0);
>  		if (p)
>  			memset(p, 0, size);
>  	}
> diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
> index a717c90..a6bc2f6 100644
> --- a/arch/mips/kernel/setup.c
> +++ b/arch/mips/kernel/setup.c
> @@ -909,7 +909,7 @@ static void __init resource_init(void)
>  		if (end >= HIGHMEM_START)
>  			end = HIGHMEM_START - 1;
>  
> -		res = alloc_bootmem(sizeof(struct resource));
> +		res = memblock_alloc(sizeof(struct resource), 0);
>  
>  		res->start = start;
>  		res->end = end;
> diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
> index 3ef1b48..ef19a39 100644
> --- a/arch/um/drivers/net_kern.c
> +++ b/arch/um/drivers/net_kern.c
> @@ -650,7 +650,7 @@ static int __init eth_setup(char *str)
>  		return 1;
>  	}
>  
> -	new = alloc_bootmem(sizeof(*new));
> +	new = memblock_alloc(sizeof(*new), 0);
>  
>  	INIT_LIST_HEAD(&new->list);
>  	new->index = n;
> diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
> index c84133c..9d77579 100644
> --- a/arch/um/drivers/vector_kern.c
> +++ b/arch/um/drivers/vector_kern.c
> @@ -1575,7 +1575,7 @@ static int __init vector_setup(char *str)
>  				 str, error);
>  		return 1;
>  	}
> -	new = alloc_bootmem(sizeof(*new));
> +	new = memblock_alloc(sizeof(*new), 0);
>  	INIT_LIST_HEAD(&new->list);
>  	new->unit = n;
>  	new->arguments = str;
> diff --git a/arch/um/kernel/initrd.c b/arch/um/kernel/initrd.c
> index 6f6e789..844056c 100644
> --- a/arch/um/kernel/initrd.c
> +++ b/arch/um/kernel/initrd.c
> @@ -36,7 +36,7 @@ int __init read_initrd(void)
>  		return 0;
>  	}
>  
> -	area = alloc_bootmem(size);
> +	area = memblock_alloc(size, 0);
>  
>  	if (load_initrd(initrd, area, size) == -1)
>  		return 0;
> diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
> index 3b20607..fd887c1 100644
> --- a/arch/x86/kernel/acpi/boot.c
> +++ b/arch/x86/kernel/acpi/boot.c
> @@ -932,7 +932,8 @@ static int __init acpi_parse_hpet(struct acpi_table_header *table)
>  	 * the resource tree during the lateinit timeframe.
>  	 */
>  #define HPET_RESOURCE_NAME_SIZE 9
> -	hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE);
> +	hpet_res = memblock_alloc(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE,
> +				  0);
>  
>  	hpet_res->name = (void *)&hpet_res[1];
>  	hpet_res->flags = IORESOURCE_MEM;
> diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
> index e25118f..8c74509 100644
> --- a/arch/x86/kernel/apic/io_apic.c
> +++ b/arch/x86/kernel/apic/io_apic.c
> @@ -2578,7 +2578,7 @@ static struct resource * __init ioapic_setup_resources(void)
>  	n = IOAPIC_RESOURCE_NAME_SIZE + sizeof(struct resource);
>  	n *= nr_ioapics;
>  
> -	mem = alloc_bootmem(n);
> +	mem = memblock_alloc(n, 0);
>  	res = (void *)mem;
>  
>  	mem += sizeof(struct resource) * nr_ioapics;
> diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
> index c88c23c..7ea8748 100644
> --- a/arch/x86/kernel/e820.c
> +++ b/arch/x86/kernel/e820.c
> @@ -1094,7 +1094,7 @@ void __init e820__reserve_resources(void)
>  	struct resource *res;
>  	u64 end;
>  
> -	res = alloc_bootmem(sizeof(*res) * e820_table->nr_entries);
> +	res = memblock_alloc(sizeof(*res) * e820_table->nr_entries, 0);
>  	e820_res = res;
>  
>  	for (i = 0; i < e820_table->nr_entries; i++) {
> diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
> index d6ee929..140cd76 100644
> --- a/arch/x86/platform/olpc/olpc_dt.c
> +++ b/arch/x86/platform/olpc/olpc_dt.c
> @@ -141,7 +141,7 @@ void * __init prom_early_alloc(unsigned long size)
>  		 * fast enough on the platforms we care about while minimizing
>  		 * wasted bootmem) and hand off chunks of it to callers.
>  		 */
> -		res = alloc_bootmem(chunk_size);
> +		res = memblock_alloc(chunk_size, 0);
>  		BUG_ON(!res);
>  		prom_early_allocated += chunk_size;
>  		memset(res, 0, chunk_size);
> diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c
> index d027ddd..206b9d4 100644
> --- a/arch/xtensa/platforms/iss/network.c
> +++ b/arch/xtensa/platforms/iss/network.c
> @@ -646,7 +646,7 @@ static int __init iss_net_setup(char *str)
>  		return 1;
>  	}
>  
> -	new = alloc_bootmem(sizeof(*new));
> +	new = memblock_alloc(sizeof(*new), 0);
>  	if (new == NULL) {
>  		pr_err("Alloc_bootmem failed\n");
>  		return 1;
> diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
> index e8ae2e5..332fcca 100644
> --- a/drivers/macintosh/smu.c
> +++ b/drivers/macintosh/smu.c
> @@ -493,7 +493,7 @@ int __init smu_init (void)
>  		goto fail_np;
>  	}
>  
> -	smu = alloc_bootmem(sizeof(struct smu_device));
> +	smu = memblock_alloc(sizeof(struct smu_device), 0);
>  
>  	spin_lock_init(&smu->lock);
>  	INIT_LIST_HEAD(&smu->cmd_list);
> diff --git a/init/main.c b/init/main.c
> index d0b92bd..99a9e99 100644
> --- a/init/main.c
> +++ b/init/main.c
> @@ -768,8 +768,8 @@ static int __init initcall_blacklist(char *str)
>  		str_entry = strsep(&str, ",");
>  		if (str_entry) {
>  			pr_debug("blacklisting initcall %s\n", str_entry);
> -			entry = alloc_bootmem(sizeof(*entry));
> -			entry->buf = alloc_bootmem(strlen(str_entry) + 1);
> +			entry = memblock_alloc(sizeof(*entry), 0);
> +			entry->buf = memblock_alloc(strlen(str_entry) + 1, 0);
>  			strcpy(entry->buf, str_entry);
>  			list_add(&entry->next, &blacklisted_initcalls);
>  		}
> -- 
> 2.7.4
> 

-- 
Michal Hocko
SUSE Labs


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Subject: Re: [PATCH 29/30] mm: remove include/linux/bootmem.h
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To: Mike Rapoport <rppt@linux.vnet.ibm.com>
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On Fri 14-09-18 15:10:44, Mike Rapoport wrote:
> Move remaining definitions and declarations from include/linux/bootmem.h
> into include/linux/memblock.h and remove the redundant header.
> 
> The includes were replaced with the semantic patch below and then
> semi-automated removal of duplicated '#include <linux/memblock.h>
> 
> @@
> @@
> - #include <linux/bootmem.h>
> + #include <linux/memblock.h>
> 
> Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>

Acked-by: Michal Hocko <mhocko@suse.com>
-- 
Michal Hocko
SUSE Labs


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Subject: Re: [PATCH 00/30] mm: remove bootmem allocator
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On Fri 14-09-18 15:10:15, Mike Rapoport wrote:
[...]
>  326 files changed, 866 insertions(+), 2539 deletions(-)
>  delete mode 100644 include/linux/bootmem.h
>  delete mode 100644 mm/bootmem.c
>  delete mode 100644 mm/nobootmem.c

I _really_ love this part the most! Not only we got rid of the
translation which always has been a headache but also this nicely shows
how having multiple allocators hurt. I believe further cleanups on top
will make the boot allocator even a place where you look and your eyes
do not want to jump out.

I have only went through patches without my acks from the previous
iteration and there are only minor comments. This looks good overall.

Nice work Mike!
-- 
Michal Hocko
SUSE Labs


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Subject: Re: [PATCH 02/30] mm: remove CONFIG_NO_BOOTMEM
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On Wed, Sep 26, 2018 at 11:22:39AM +0200, Michal Hocko wrote:
> On Fri 14-09-18 15:10:17, Mike Rapoport wrote:
> > All achitectures select NO_BOOTMEM which essentially becomes 'Y' for any
> > kernel configuration and therefore it can be removed.
> 
> git grep suggests that DEFERRED_STRUCT_PAGE_INIT still depends on
> NO_BOOTMEM but I have a vague feeling that I've seen a patch to address
> that. It would be great to have it folded to this one.

Yes, Alexander has already fixed that at [1]

[1] https://lkml.org/lkml/2018/9/25/1073
 
> > Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
> 
> Acked-by: Michal Hocko <mhocko@suse.com>
> -- 
> Michal Hocko
> SUSE Labs
> 

-- 
Sincerely yours,
Mike.



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On Wed, Sep 26, 2018 at 11:24:04AM +0200, Michal Hocko wrote:
> On Fri 14-09-18 15:10:18, Mike Rapoport wrote:
> > All architecures use memblock for early memory management. There is no need
> > for the CONFIG_HAVE_MEMBLOCK configuration option.
> 
> git grep says
> arch/csky/Kconfig:  select HAVE_MEMBLOCK
 
Not only that, there are other bootmem leftovers in csky.
I've sent the patch with the necessary fixups [1]

[1] https://lkml.kernel.org/lkml/20180926112744.GC4628@rapoport-lnx/

> > Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
> 
> Other than that
> Acked-by: Michal Hocko <mhocko@suse.com>
> -- 
> Michal Hocko
> SUSE Labs
> 

-- 
Sincerely yours,
Mike.



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Subject: Re: [PATCH] parisc: Remove PTE load and fault check from L2_ptep
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Hi,

On 2018-09-25 11:21 PM, Guenter Roeck wrote:
> This patch causes my parisc qemu tests to fail.
> Unfortunately I don't have any useful log output; the failure
> is silent. Reverting the patch fixes the problem.
Can you be more specific on how to run these tests?

Dave

-- 
John David Anglin  dave.anglin@bell.net



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Subject: Re: [PATCH] parisc: Remove PTE load and fault check from L2_ptep
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On 09/26/2018 05:09 AM, John David Anglin wrote:
> Hi,
> 
> On 2018-09-25 11:21 PM, Guenter Roeck wrote:
>> This patch causes my parisc qemu tests to fail.
>> Unfortunately I don't have any useful log output; the failure
>> is silent. Reverting the patch fixes the problem.
> Can you be more specific on how to run these tests?
> 
> Dave
> 

Sorry. Please see

https://github.com/groeck/linux-build-test/tree/master/rootfs/parisc

My tests enable a number of device and debug options on top of defconfig.
Those are not necessary, though. The problem can be reproduced with defconfig.

With the initrd available from there, and with an image built using 'defconfig',
run

qemu-system-hppa \
	-kernel vmlinux -no-reboot \
	-initrd rootfs.cpio.gz \
	-append 'rdinit=/sbin/init console=ttyS0,115200' \
	-nographic -monitor null

I tested with qemu 2.12 and 3.0. Using "arch/parisc/boot/bzImage" as kernel
image does not make a difference.

Note: The initrd auto-reboots. To avoid that, add "noreboot" as additional
command line option.

Hope this helps,

Guenter


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From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.riscv,gmane.linux.ports.sh.devel,gmane.linux.kernel.arc,gmane.linux.ports.sparc
Subject: Re: [PATCH 14/30] memblock: add align parameter to
 memblock_alloc_node()
Date: Wed, 26 Sep 2018 16:43:35 +0300
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Approved: news@gmane.org
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References: <1536927045-23536-1-git-send-email-rppt@linux.vnet.ibm.com>
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Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
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        Chris Zankel <chris@zankel.net>,
        "David S. Miller" <davem@davemloft.net>,
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        Michael Ellerman <mpe@ellerman.id.au>,
        Michal Simek <monstr@monstr.eu>,
        Palmer Dabbelt <palmer@sifive.com>,
        Paul Burton <p
To: Michal Hocko <mhocko@kernel.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2882301>

On Wed, Sep 26, 2018 at 11:36:48AM +0200, Michal Hocko wrote:
> On Wed 26-09-18 11:31:27, Michal Hocko wrote:
> > On Fri 14-09-18 15:10:29, Mike Rapoport wrote:
> > > With the align parameter memblock_alloc_node() can be used as drop in
> > > replacement for alloc_bootmem_pages_node() and __alloc_bootmem_node(),
> > > which is done in the following patches.
> > 
> > /me confused. Why do we need this patch at all? Maybe it should be
> > folded into the later patch you are refereing here?
> 
> OK, I can see 1536927045-23536-17-git-send-email-rppt@linux.vnet.ibm.com
> now. If you are going to repost for whatever reason please merge those
> two. Also I would get rid of the implicit "0 implies SMP_CACHE_BYTES"
> behavior. It is subtle and you have to dig deep to find that out. Why
> not make it explicit?

Agree. I'd just prefer to make it a separate patch rather then resend the
whole series. 

> -- 
> Michal Hocko
> SUSE Labs
> 

-- 
Sincerely yours,
Mike.



From - Thu Nov 08 21:42:01 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Michal Hocko <mhocko@kernel.org>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.riscv,gmane.linux.ports.sh.devel,gmane.linux.kernel.arc,gmane.linux.ports.sparc
Subject: Re: [PATCH 14/30] memblock: add align parameter to
 memblock_alloc_node()
Date: Wed, 26 Sep 2018 16:23:19 +0200
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Approved: news@gmane.org
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Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Chris Zankel <chris@zankel.net>,
        "David S. Miller" <davem@davemloft.net>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Greentime Hu <green.hu@gmail.com>,
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        Guan Xuetao <gxt@pku.edu.cn>, Ingo Molnar <mingo@redhat.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Jonas Bonn <jonas@southpole.se>,
        Jonathan Corbet <corbet@lwn.net>,
        Ley Foon Tan <lftan@altera.com>,
        Mark Salter <msalter@redhat.com>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Matt Turner <mattst88@gmail.com>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Michal Simek <monstr@monstr.eu>,
        Palmer Dabbelt <palmer@sifive.com>,
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To: Mike Rapoport <rppt@linux.vnet.ibm.com>
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On Wed 26-09-18 16:43:35, Mike Rapoport wrote:
> On Wed, Sep 26, 2018 at 11:36:48AM +0200, Michal Hocko wrote:
> > On Wed 26-09-18 11:31:27, Michal Hocko wrote:
> > > On Fri 14-09-18 15:10:29, Mike Rapoport wrote:
> > > > With the align parameter memblock_alloc_node() can be used as drop in
> > > > replacement for alloc_bootmem_pages_node() and __alloc_bootmem_node(),
> > > > which is done in the following patches.
> > > 
> > > /me confused. Why do we need this patch at all? Maybe it should be
> > > folded into the later patch you are refereing here?
> > 
> > OK, I can see 1536927045-23536-17-git-send-email-rppt@linux.vnet.ibm.com
> > now. If you are going to repost for whatever reason please merge those
> > two. Also I would get rid of the implicit "0 implies SMP_CACHE_BYTES"
> > behavior. It is subtle and you have to dig deep to find that out. Why
> > not make it explicit?
> 
> Agree. I'd just prefer to make it a separate patch rather then resend the
> whole series. 

Sure, no objection from me.

-- 
Michal Hocko
SUSE Labs


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From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.comp.video.dri.devel
Subject: Re: [PATCH] video/fbdev/stifb: Fix spelling mistake in fall-through
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On 09/03/2018 10:07 PM, Gustavo A. R. Silva wrote:
> Replace "fall though" with a proper "fall through" annotation.
> 
> This fix is part of the ongoing efforts to enabling
> -Wimplicit-fallthrough
> 
> Addresses-Coverity-ID: 402013 ("Missing break in switch")
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>

Patch queued for 4.19, thanks.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics


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Subject: Re: [PATCH 03/30] mm: remove CONFIG_HAVE_MEMBLOCK
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On Fri, Sep 14, 2018 at 5:11 AM Mike Rapoport <rppt@linux.vnet.ibm.com> wrote:
>
> All architecures use memblock for early memory management. There is no need
> for the CONFIG_HAVE_MEMBLOCK configuration option.
>
> Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>

<snip>

> diff --git a/include/linux/memblock.h b/include/linux/memblock.h
> index 5169205..4ae91fc 100644
> --- a/include/linux/memblock.h
> +++ b/include/linux/memblock.h
> @@ -2,7 +2,6 @@
>  #define _LINUX_MEMBLOCK_H
>  #ifdef __KERNEL__
>
> -#ifdef CONFIG_HAVE_MEMBLOCK
>  /*
>   * Logical memory blocks.
>   *
> @@ -460,7 +459,6 @@ static inline phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align)
>  {
>         return 0;
>  }
> -#endif /* CONFIG_HAVE_MEMBLOCK */
>
>  #endif /* __KERNEL__ */

There was an #else above this section and I believe it and the code
after it needs to be stripped as well.


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On Wed, Sep 26, 2018 at 09:58:41AM -0700, Alexander Duyck wrote:
> On Fri, Sep 14, 2018 at 5:11 AM Mike Rapoport <rppt@linux.vnet.ibm.com> wrote:
> >
> > All architecures use memblock for early memory management. There is no need
> > for the CONFIG_HAVE_MEMBLOCK configuration option.
> >
> > Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
> 
> <snip>
> 
> > diff --git a/include/linux/memblock.h b/include/linux/memblock.h
> > index 5169205..4ae91fc 100644
> > --- a/include/linux/memblock.h
> > +++ b/include/linux/memblock.h
> > @@ -2,7 +2,6 @@
> >  #define _LINUX_MEMBLOCK_H
> >  #ifdef __KERNEL__
> >
> > -#ifdef CONFIG_HAVE_MEMBLOCK
> >  /*
> >   * Logical memory blocks.
> >   *
> > @@ -460,7 +459,6 @@ static inline phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align)
> >  {
> >         return 0;
> >  }
> > -#endif /* CONFIG_HAVE_MEMBLOCK */
> >
> >  #endif /* __KERNEL__ */
> 
> There was an #else above this section and I believe it and the code
> after it needs to be stripped as well.

Right, I've already sent the fix [1] and it's in mmots.

[1] https://lkml.org/lkml/2018/9/19/416

-- 
Sincerely yours,
Mike.



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        Catalin Marinas <catalin.marinas@arm.com>, chris@zankel.net,
        David Miller <davem@davemloft.net>,
        Geert Uytterhoeven <geert@linux-m68k.org>, green.hu@gmail.com,
        Greg KH <gregkh@linuxfoundation.org>, gxt@pku.edu.cn,
        Ingo Molnar <mingo@redhat.com>, jejb@parisc-linux.org,
        jonas@southpole.se, Jonathan Corbet <corbet@lwn.net>,
        lftan@altera.com, msalter@redhat.com,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        mattst88@gmail.com, mpe@ellerman.id.au,
        Michal Hocko <mhocko@suse.com>, monstr@monstr.eu,
        palmer@sifive.com, paul.burton@mips.com, rkuo@codeaurora.org,
        richard@nod.at, dalias@libc.org,
        Russell King - ARM Linux <linux@armlinux.org.uk>,
        fancer.lancer@gmail.com, Thomas Gleixner <tglx@linutronix.de>
To: rppt@linux.vnet.ibm.com
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On Wed, Sep 26, 2018 at 11:32 AM Mike Rapoport <rppt@linux.vnet.ibm.com> wrote:
>
> On Wed, Sep 26, 2018 at 09:58:41AM -0700, Alexander Duyck wrote:
> > On Fri, Sep 14, 2018 at 5:11 AM Mike Rapoport <rppt@linux.vnet.ibm.com> wrote:
> > >
> > > All architecures use memblock for early memory management. There is no need
> > > for the CONFIG_HAVE_MEMBLOCK configuration option.
> > >
> > > Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
> >
> > <snip>
> >
> > > diff --git a/include/linux/memblock.h b/include/linux/memblock.h
> > > index 5169205..4ae91fc 100644
> > > --- a/include/linux/memblock.h
> > > +++ b/include/linux/memblock.h
> > > @@ -2,7 +2,6 @@
> > >  #define _LINUX_MEMBLOCK_H
> > >  #ifdef __KERNEL__
> > >
> > > -#ifdef CONFIG_HAVE_MEMBLOCK
> > >  /*
> > >   * Logical memory blocks.
> > >   *
> > > @@ -460,7 +459,6 @@ static inline phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align)
> > >  {
> > >         return 0;
> > >  }
> > > -#endif /* CONFIG_HAVE_MEMBLOCK */
> > >
> > >  #endif /* __KERNEL__ */
> >
> > There was an #else above this section and I believe it and the code
> > after it needs to be stripped as well.
>
> Right, I've already sent the fix [1] and it's in mmots.
>
> [1] https://lkml.org/lkml/2018/9/19/416
>

Are you sure? The patch you reference appears to be for
drivers/of/fdt.c, and the bit I pointed out here is in
include/linux/memblock.h.

- Alex


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Special thanks for the feedback from:
- Finn Thain (I fixed the build problem) 
- Geert Uytterhoeven (The cross compilers were very useful)
- Rolf Eike Beer (Was unintentional, thanks for noticing)

This Patchset changes some driver's Makefile to allow them building
using the command 'make drivers/DRIVERNAME', if compatible.

The changed drivers would return error if the above command was run
on them, after an x86 allyesconfig.

The main reason of this patchset is to allow building lists of
drivers looking for warnings and errors to be fixed. 

I see this change as a new feature, not a bugfix. I understand 
the default bahavior may be building with a simple 'make', but I
believe adding this new possibility will not be harmful.

My main objective is to allow developers with low processing power
to do changes in the kernel and look bugs using free services like
GiltabCI, before submitting to community.

If there is any interest helping/using this, I have a prototype in:
https://gitlab.com/LeoBras/linux-next

Leonardo Brás (7):
  drivers: dio: Avoids building driver if CONFIG_DIO is disabled
  drivers: nubus: Avoids building driver if CONFIG_NUBUS is disabled
  drivers: parisc: Avoids building driver if CONFIG_PARISC is disabled
  drivers: zorro: Avoids building proc.o if CONFIG_ZORRO is disabled
  drivers: s390: Avoids building drivers if ARCH is not s390.
  drivers: oprofile: Avoids building driver from direct make command
  drivers: hwtracing: Adds Makefile to enable building from directory.

 drivers/Makefile           | 4 +---
 drivers/dio/Makefile       | 2 +-
 drivers/hwtracing/Makefile | 3 +++
 drivers/nubus/Makefile     | 5 +++--
 drivers/oprofile/Makefile  | 2 ++
 drivers/parisc/Makefile    | 2 +-
 drivers/s390/Makefile      | 8 ++++----
 drivers/zorro/Makefile     | 7 ++++---
 8 files changed, 19 insertions(+), 14 deletions(-)
 create mode 100644 drivers/hwtracing/Makefile
 create mode 100644 drivers/oprofile/Makefile

-- 
2.19.0



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Avoids building driver if 'make drivers/dio/' is called and
CONFIG_DIO is disabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/dio/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dio/Makefile b/drivers/dio/Makefile
index ae92d17083f2..f5cffe232448 100644
--- a/drivers/dio/Makefile
+++ b/drivers/dio/Makefile
@@ -2,4 +2,4 @@
 # Makefile for the linux kernel.
 #
 
-obj-y := dio.o dio-driver.o dio-sysfs.o
+obj-$(CONFIG_DIO) := dio.o dio-driver.o dio-sysfs.o
\ No newline at end of file
-- 
2.19.0



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Subject: [PATCH v2 2/7] drivers: nubus: Avoids building driver if
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Avoids building driver if 'make drivers/nubus/' is called and
CONFIG_NUBUS is disabled.
Avoids building proc.o if CONFIG_PROC_FS is enabled but
CONFIG_NUBUS is disabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/nubus/Makefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/nubus/Makefile b/drivers/nubus/Makefile
index 6d063cde39d1..1daa51217e95 100644
--- a/drivers/nubus/Makefile
+++ b/drivers/nubus/Makefile
@@ -2,6 +2,7 @@
 # Makefile for the nubus specific drivers.
 #
 
-obj-y := nubus.o bus.o
+obj-$(CONFIG_NUBUS) := nubus_all.o
+nubus_all-y += bus.o nubus.o
 
-obj-$(CONFIG_PROC_FS) += proc.o
+nubus_all-$(CONFIG_PROC_FS) += proc.o
-- 
2.19.0



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Subject: [PATCH v2 3/7] drivers: parisc: Avoids building driver if
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Avoids building driver if 'make drivers/parisc/' is called and
CONFIG_PARISC is disabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/parisc/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/Makefile b/drivers/parisc/Makefile
index 3cd5e6cb8478..80049d763aa0 100644
--- a/drivers/parisc/Makefile
+++ b/drivers/parisc/Makefile
@@ -24,5 +24,5 @@ obj-$(CONFIG_EISA)		+= eisa.o eisa_enumerator.o eisa_eeprom.o
 obj-$(CONFIG_SUPERIO)		+= superio.o
 obj-$(CONFIG_CHASSIS_LCD_LED)	+= led.o
 obj-$(CONFIG_PDC_STABLE)	+= pdc_stable.o
-obj-y				+= power.o
+obj-$(CONFIG_PARISC)		+= power.o
 
-- 
2.19.0



From - Thu Nov 08 21:42:02 2018
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Subject: [PATCH v2 4/7] drivers: zorro: Avoids building proc.o if
 CONFIG_ZORRO is disabled
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Avoids building proc.o if 'make drivers/zorro/' is called and
CONFIG_ZORRO is disabled, even if CONFIG_PROC_FS is enabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/zorro/Makefile | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/zorro/Makefile b/drivers/zorro/Makefile
index b360ac4ea846..d580f9f08e0a 100644
--- a/drivers/zorro/Makefile
+++ b/drivers/zorro/Makefile
@@ -3,9 +3,10 @@
 # Makefile for the Zorro bus specific drivers.
 #
 
-obj-$(CONFIG_ZORRO)	+= zorro.o zorro-driver.o zorro-sysfs.o
-obj-$(CONFIG_PROC_FS)	+= proc.o
-obj-$(CONFIG_ZORRO_NAMES) +=  names.o
+obj-$(CONFIG_ZORRO) 		:= zorro_all.o
+zorro_all-y			+= zorro.o zorro-driver.o zorro-sysfs.o
+zorro_all-$(CONFIG_ZORRO_NAMES) += names.o
+zorro_all-$(CONFIG_PROC_FS)	+= proc.o
 
 hostprogs-y 		:= gen-devlist
 
-- 
2.19.0



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Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: [PATCH v2 5/7] drivers: s390: Avoids building drivers if ARCH is not
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Avoids building s390 drivers if 'make drivers/s390/' is called but
ARCH is not s390.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/s390/Makefile | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/s390/Makefile b/drivers/s390/Makefile
index a863b0462b43..0575f02dba45 100644
--- a/drivers/s390/Makefile
+++ b/drivers/s390/Makefile
@@ -3,7 +3,7 @@
 # Makefile for the S/390 specific device drivers
 #
 
-obj-y += cio/ block/ char/ crypto/ net/ scsi/ virtio/
-
-drivers-y += drivers/s390/built-in.a
-
+ifeq ($(ARCH),s390)
+	obj-y += cio/ block/ char/ crypto/ net/ scsi/ virtio/
+	drivers-y += drivers/s390/built-in.a
+endif
-- 
2.19.0



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Creates new Makefile to avoid building driver if
'make drivers/oprofile/' is called directly.

This driver is usually built from arch/$ARCH and seems to have
no meaning building alone.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/oprofile/Makefile | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 drivers/oprofile/Makefile

diff --git a/drivers/oprofile/Makefile b/drivers/oprofile/Makefile
new file mode 100644
index 000000000000..acaed2ad6eee
--- /dev/null
+++ b/drivers/oprofile/Makefile
@@ -0,0 +1,2 @@
+#Does nothing, since the source is called from arch/$ARCH/ tree.
+
-- 
2.19.0



From - Thu Nov 08 21:42:02 2018
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Adds Makefile to enable building the driver using
'make drivers/hwtracing/'.
Changes drivers/Makefile to call the new Makefile directly.
It enables user building this driver without building the whole drivers/
subtree.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/Makefile           | 4 +---
 drivers/hwtracing/Makefile | 3 +++
 2 files changed, 4 insertions(+), 3 deletions(-)
 create mode 100644 drivers/hwtracing/Makefile

diff --git a/drivers/Makefile b/drivers/Makefile
index 578f469f72fb..a237be6b602f 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -174,9 +174,7 @@ obj-$(CONFIG_MCB)		+= mcb/
 obj-$(CONFIG_PERF_EVENTS)	+= perf/
 obj-$(CONFIG_RAS)		+= ras/
 obj-$(CONFIG_THUNDERBOLT)	+= thunderbolt/
-obj-$(CONFIG_CORESIGHT)		+= hwtracing/coresight/
-obj-y				+= hwtracing/intel_th/
-obj-$(CONFIG_STM)		+= hwtracing/stm/
+obj-y				+= hwtracing/
 obj-$(CONFIG_ANDROID)		+= android/
 obj-$(CONFIG_NVMEM)		+= nvmem/
 obj-$(CONFIG_FPGA)		+= fpga/
diff --git a/drivers/hwtracing/Makefile b/drivers/hwtracing/Makefile
new file mode 100644
index 000000000000..fe5773caec49
--- /dev/null
+++ b/drivers/hwtracing/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_CORESIGHT)		+= coresight/
+obj-y				+= intel_th/
+obj-$(CONFIG_STM)		+= stm/
-- 
2.19.0



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On Wed, Sep 26, 2018 at 05:34:32PM -0700, Alexander Duyck wrote:
> On Wed, Sep 26, 2018 at 11:32 AM Mike Rapoport <rppt@linux.vnet.ibm.com> wrote:
> >
> > On Wed, Sep 26, 2018 at 09:58:41AM -0700, Alexander Duyck wrote:
> > > On Fri, Sep 14, 2018 at 5:11 AM Mike Rapoport <rppt@linux.vnet.ibm.com> wrote:
> > > >
> > > > All architecures use memblock for early memory management. There is no need
> > > > for the CONFIG_HAVE_MEMBLOCK configuration option.
> > > >
> > > > Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
> > >
> > > <snip>
> > >
> > > > diff --git a/include/linux/memblock.h b/include/linux/memblock.h
> > > > index 5169205..4ae91fc 100644
> > > > --- a/include/linux/memblock.h
> > > > +++ b/include/linux/memblock.h
> > > > @@ -2,7 +2,6 @@
> > > >  #define _LINUX_MEMBLOCK_H
> > > >  #ifdef __KERNEL__
> > > >
> > > > -#ifdef CONFIG_HAVE_MEMBLOCK
> > > >  /*
> > > >   * Logical memory blocks.
> > > >   *
> > > > @@ -460,7 +459,6 @@ static inline phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align)
> > > >  {
> > > >         return 0;
> > > >  }
> > > > -#endif /* CONFIG_HAVE_MEMBLOCK */
> > > >
> > > >  #endif /* __KERNEL__ */
> > >
> > > There was an #else above this section and I believe it and the code
> > > after it needs to be stripped as well.
> >
> > Right, I've already sent the fix [1] and it's in mmots.
> >
> > [1] https://lkml.org/lkml/2018/9/19/416
> >
> 
> Are you sure? The patch you reference appears to be for
> drivers/of/fdt.c, and the bit I pointed out here is in
> include/linux/memblock.h.

Ah, sorry. You are right, will fix. Thanks for spotting it!
 
> - Alex
> 

-- 
Sincerely yours,
Mike.



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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 0/5] System call table generation support
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The purpose of this patch series is:
1. We can easily add/modify/delete system call by changing entry 
in syscall.tbl file. No need to manually edit many files.

2. It is easy to unify the system call implementation across all 
the architectures. 

The system call tables are in different format in all architecture 
and it will be difficult to manually add or modify the system calls
in the respective files manually. To make it easy by keeping a script 
and which'll generate the header file and syscall table file so this 
change will unify them across all architectures.

syscall.tbl contains the list of available system calls along with 
system call number and corresponding entry point. Add a new system 
call in this architecture will be possible by adding new entry in 
the syscall.tbl file.

Adding a new table entry consisting of:
        - System call number.
        - ABI.
        - System call name.
        - Entry point name.
        - Compat entry name, if required.

ARM, s390 and x86 architecuture does exist the similar support. I 
leverage their implementation to come up with a generic solution.

I have done the same support for work for alpha, microblaze, sparc,
m68k, mips, powerpc, sh, sparc, and xtensa. But I started sending 
the patch for one architecuture for review. Below mentioned git
repository contains more details.
Git repo:- https://github.com/frzkhn/system_call_table_generator/

Added an extra patch to keep __IGNORE* entries in asm/unistd.h.

Finally, this is the ground work for solving the Y2038 issue. We 
need to add/change two dozen of system calls to solve Y2038 issue. 
So this patch series will help to easily modify from existing 
system call to Y2038 compatible system calls.

Firoz Khan (5):
  parisc: move __IGNORE* entries to non uapi header
  parisc: add __NR_Linux_syscalls macro with __NR_syscalls
  parisc: add system call table generation support
  parisc: uapi header and system call table file generation
  parisc: add __IGNORE* entries in asm/unistd.h

 arch/parisc/Makefile                       |   4 +
 arch/parisc/include/asm/Kbuild             |   3 +
 arch/parisc/include/asm/unistd.h           |   9 +
 arch/parisc/include/uapi/asm/Kbuild        |   2 +
 arch/parisc/include/uapi/asm/unistd.h      | 380 +-----------------------
 arch/parisc/kernel/syscall.S               |  12 +-
 arch/parisc/kernel/syscall_table.S         | 459 -----------------------------
 arch/parisc/kernel/syscall_table_32.S      |  13 +
 arch/parisc/kernel/syscall_table_64.S      |  20 ++
 arch/parisc/kernel/syscalls/Makefile       |  55 ++++
 arch/parisc/kernel/syscalls/syscall_32.tbl | 342 +++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscall_64.tbl | 342 +++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscallhdr.sh  |  35 +++
 arch/parisc/kernel/syscalls/syscalltbl.sh  |  42 +++
 14 files changed, 877 insertions(+), 841 deletions(-)
 delete mode 100644 arch/parisc/kernel/syscall_table.S
 create mode 100644 arch/parisc/kernel/syscall_table_32.S
 create mode 100644 arch/parisc/kernel/syscall_table_64.S
 create mode 100644 arch/parisc/kernel/syscalls/Makefile
 create mode 100644 arch/parisc/kernel/syscalls/syscall_32.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscall_64.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
 create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh

-- 
1.9.1



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All the  __IGNORE* entries are resides in the uapi header
file moved to non uapi header. Basically it is not used by
any user space applications.

One of the patch in this patch series will generate the
uapi header file and system call table file. So if we move
all the __IGNORE* entries to non uapi header, it will help
to simplify the uapi header and system call table file
generation script.

It is correct to keep __IGNORE* entry in non uapi header
asm/unistd.h while uapi/asm/unistd.h must hold information
only useful for user space applications.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/include/asm/unistd.h      | 6 ++++++
 arch/parisc/include/uapi/asm/unistd.h | 7 -------
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 3d507d0..93fd9f6 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -8,6 +8,12 @@
 
 #define SYS_ify(syscall_name)   __NR_##syscall_name
 
+#define __IGNORE_select                /* newselect */
+#define __IGNORE_fadvise64             /* fadvise64_64 */
+#define __IGNORE_pkey_mprotect
+#define __IGNORE_pkey_alloc
+#define __IGNORE_pkey_free
+
 #ifndef ASM_LINE_SEP
 # define ASM_LINE_SEP ;
 #endif
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index dc77c5a..bb52e12 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -368,13 +368,6 @@
 
 #define __NR_Linux_syscalls	(__NR_io_pgetevents + 1)
 
-
-#define __IGNORE_select		/* newselect */
-#define __IGNORE_fadvise64	/* fadvise64_64 */
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
-
 #define LINUX_GATEWAY_ADDR      0x100
 
 #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */
-- 
1.9.1



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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 2/5] parisc: add __NR_Linux_syscalls macro with __NR_syscalls
Date: Thu, 27 Sep 2018 19:54:24 +0530
Lines: 56
Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2883755>

__NR_Linux_syscalls macro holds the number of system call
exist in PARISC architecture. This macro is currently the
part of uapi/asm/unistd.h file. We have to change the value
of __NR_Linux_syscalls, if we add or delete a system call.

One of the patch in this patch series has a script which
will generate a uapi header based on syscall.tbl file. The
syscall.tbl file contains the number of system call inform-
ation. So we have two option to update __NR_Linux_syscalls
value.

1. Update __NR_Linux_syscalls in uapi/asm/unistd.h manually
   by counting the no.of system calls. No need to update
   __NR_Linux_syscalls until we either add a new system call
   or delete an existing system call.

2. We can keep this feature it above mentioned script, that
   will count the number of syscalls and keep it in a gener-
   ated file. In this case we don't need to explicitly update
   __NR_Linux_syscalls in asm/unistd.h file.

The 2nd option will be the recommended one. For that, I moved
the __NR_Linux_syscalls macro from uapi/asm/unistd.h to asm/
unistd.h. The macro __NR_syscalls also added for making the
name convention same across all architecture. While __NR_sys-
calls isn't strictly part of the uapi, having it as part of
the generated header to simplifies the implementation. We also
need to enclose this macro with #ifdef __KERNEL__ to avoid side
effects.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/include/uapi/asm/unistd.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index bb52e12..255c62a 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -366,7 +366,11 @@
 #define __NR_statx		(__NR_Linux + 349)
 #define __NR_io_pgetevents	(__NR_Linux + 350)
 
-#define __NR_Linux_syscalls	(__NR_io_pgetevents + 1)
+#ifdef __KERNEL__
+#define __NR_syscalls           351
+#endif
+
+#define __NR_Linux_syscalls     __NR_syscalls
 
 #define LINUX_GATEWAY_ADDR      0x100
 
-- 
1.9.1



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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 3/5] parisc: add system call table generation support
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The system call tables are in different format in all
architecture and it will be difficult to manually add or
modify the system calls in the respective files. To make
it easy by keeping a script and which'll generate the
header file and syscall table file so this change will
unify them across all architectures.

The system call table generation script is added in
syscalls directory which contain the script to generate
both uapi header file system call table generation file
and syscall_32/64.tbl file which'll be the input for the
scripts.

syscall_32/64.tbl contains the list of available system calls
along with system call number and corresponding entry point.
Add a new system call in this architecture will be possible
by adding new entry in the syscall_32/64.tbl file.

Adding a new table entry consisting of:
        - System call number.
        - ABI.
        - System call name.
        - Entry point name.
	- Compat entry name, if required.

syscallhdr.sh and syscalltbl.sh will generate uapi header-
unistd_32/64.h and syscall_table_32/64/c32.h files respect-
ively. File syscall_table_32/64/c32.h is included by sys-
call.S - the real system call table. Both .sh files will
parse the content syscall.tbl to generate the header and
table files.

ARM, s390 and x86 architecuture does have the similar support.
I leverage their implementation to come up with a generic
solution.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/kernel/syscalls/Makefile       |  55 +++++
 arch/parisc/kernel/syscalls/syscall_32.tbl | 342 +++++++++++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscall_64.tbl | 342 +++++++++++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscallhdr.sh  |  35 +++
 arch/parisc/kernel/syscalls/syscalltbl.sh  |  42 ++++
 5 files changed, 816 insertions(+)
 create mode 100644 arch/parisc/kernel/syscalls/Makefile
 create mode 100644 arch/parisc/kernel/syscalls/syscall_32.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscall_64.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
 create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh

diff --git a/arch/parisc/kernel/syscalls/Makefile b/arch/parisc/kernel/syscalls/Makefile
new file mode 100644
index 0000000..e8b80ee
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/Makefile
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0
+out := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
+
+_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
+	  $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
+
+syscall32 := $(srctree)/$(src)/syscall_32.tbl
+syscall64 := $(srctree)/$(src)/syscall_64.tbl
+
+syshdr := $(srctree)/$(src)/syscallhdr.sh
+systbl := $(srctree)/$(src)/syscalltbl.sh
+
+quiet_cmd_syshdr = SYSHDR  $@
+      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'  \
+		   '$(syshdr_abi_$(basetarget))'          \
+		   '$(syshdr_pfx_$(basetarget))'          \
+		   '$(syshdr_offset_$(basetarget))'
+
+quiet_cmd_systbl = SYSTBL  $@
+      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'  \
+                   '$(systbl_abi_$(basetarget))'          \
+		   '$(systbl_offset_$(basetarget))'
+
+syshdr_offset_unistd_32 := __NR_Linux
+$(uapi)/unistd_32.h: $(syscall32) $(syshdr)
+	$(call if_changed,syshdr)
+
+syshdr_offset_unistd_64 := __NR_Linux
+$(uapi)/unistd_64.h: $(syscall64) $(syshdr)
+	$(call if_changed,syshdr)
+
+systbl_abi_syscall_table_32 := 32
+$(out)/syscall_table_32.h: $(syscall32) $(systbl)
+	$(call if_changed,systbl)
+
+systbl_abi_syscall_table_64 := 64
+$(out)/syscall_table_64.h: $(syscall64) $(systbl)
+	$(call if_changed,systbl)
+
+systbl_abi_syscall_table_c32 := c32
+$(out)/syscall_table_c32.h: $(syscall32) $(systbl)
+	$(call if_changed,systbl)
+
+uapisyshdr-y			+= unistd_32.h unistd_64.h
+syshdr-y			+= syscall_table_32.h     \
+                                   syscall_table_64.h     \
+                                   syscall_table_c32.h
+
+targets	+= $(uapisyshdr-y) $(syshdr-y)
+
+PHONY += all
+all: $(addprefix $(uapi)/,$(uapisyshdr-y))
+all: $(addprefix $(out)/,$(syshdr-y))
+	@:
diff --git a/arch/parisc/kernel/syscalls/syscall_32.tbl b/arch/parisc/kernel/syscalls/syscall_32.tbl
new file mode 100644
index 0000000..9d66e64d
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscall_32.tbl
@@ -0,0 +1,342 @@
+#
+# 32-bit system call numbers and entry vectors
+#
+# The format is:
+# <number> <abi> <name> <entry point> <compat entry point>
+#
+# The abi is always "common" for this file.
+#
+0       common  restart_syscall                 sys_restart_syscall
+1       common  exit                            sys_exit
+2       common  fork                            sys_fork_wrapper
+3       common  read                            sys_read
+4       common  write                           sys_write
+5       common  open                            sys_open                        compat_sys_open
+6       common  close                           sys_close
+7       common  waitpid                         sys_waitpid
+8       common  creat                           sys_creat
+9       common  link                            sys_link
+10      common  unlink                          sys_unlink
+11      common  execve                          sys_execve                      compat_sys_execve
+12      common  chdir                           sys_chdir
+13      common  time                            sys_time                        compat_sys_time
+14      common  mknod                           sys_mknod
+15      common  chmod                           sys_chmod
+16      common  lchown                          sys_lchown
+17      common  socket                          sys_socket
+18      common  stat                            sys_newstat                     compat_sys_newstat
+19      common  lseek                           sys_lseek                       compat_sys_lseek
+20      common  getpid                          sys_getpid
+21      common  mount                           sys_mount                       compat_sys_mount
+22      common  bind                            sys_bind
+23      common  setuid                          sys_setuid
+24      common  getuid                          sys_getuid
+25      common  stime                           sys_stime                       compat_sys_stime
+26      common  ptrace                          sys_ptrace                      compat_sys_ptrace
+27      common  alarm                           sys_alarm
+28      common  fstat                           sys_newfstat                    compat_sys_newfstat
+29      common  pause                           sys_pause
+30      common  utime                           sys_utime                       compat_sys_utime
+31      common  connect                         sys_connect
+32      common  listen                          sys_listen
+33      common  access                          sys_access
+34      common  nice                            sys_nice
+35      common  accept                          sys_accept
+36      common  sync                            sys_sync
+37      common  kill                            sys_kill
+38      common  rename                          sys_rename
+39      common  mkdir                           sys_mkdir
+40      common  rmdir                           sys_rmdir
+41      common  dup                             sys_dup
+42      common  pipe                            sys_pipe
+43      common  times                           sys_times                       compat_sys_times
+44      common  getsockname                     sys_getsockname
+45      common  brk                             sys_brk
+46      common  setgid                          sys_setgid
+47      common  getgid                          sys_getgid
+48      common  signal                          sys_signal
+49      common  geteuid                         sys_geteuid
+50      common  getegid                         sys_getegid
+51      common  acct                            sys_acct
+52      common  umount2                         sys_umount
+53      common  getpeername                     sys_getpeername
+54      common  ioctl                           sys_ioctl                       compat_sys_ioctl
+55      common  fcntl                           sys_fcntl                       compat_sys_fcntl
+56      common  socketpair                      sys_socketpair
+57      common  setpgid                         sys_setpgid
+58      common  send                            sys_send
+59      common  uname                           sys_newuname
+60      common  umask                           sys_umask
+61      common  chroot                          sys_chroot
+62      common  ustat                           sys_ustat                       compat_sys_ustat
+63      common  dup2                            sys_dup2
+64      common  getppid                         sys_getppid
+65      common  getpgrp                         sys_getpgrp
+66      common  setsid                          sys_setsid
+67      common  pivot_root                      sys_pivot_root
+68      common  sgetmask                        sys_sgetmask                    sys32_unimplemented
+69      common  ssetmask                        sys_ssetmask                    sys32_unimplemented
+70      common  setreuid                        sys_setreuid
+71      common  setregid                        sys_setregid
+72      common  mincore                         sys_mincore
+73      common  sigpending                      sys_sigpending                  compat_sys_sigpending
+74      common  sethostname                     sys_sethostname
+75      common  setrlimit                       sys_setrlimit                   compat_sys_setrlimit
+76      common  getrlimit                       sys_getrlimit                   compat_sys_getrlimit
+77      common  getrusage                       sys_getrusage                   compat_sys_getrusage
+78      common  gettimeofday                    sys_gettimeofday                compat_sys_gettimeofday
+79      common  settimeofday                    sys_settimeofday                compat_sys_settimeofday
+80      common  getgroups                       sys_getgroups
+81      common  setgroups                       sys_setgroups
+82      common  sendto                          sys_sendto
+83      common  symlink                         sys_symlink
+84      common  lstat                           sys_newlstat                    compat_sys_newlstat
+85      common  readlink                        sys_readlink
+86      common  uselib                          sys_ni_syscall
+87      common  swapon                          sys_swapon
+88      common  reboot                          sys_reboot
+89      common  mmap2                           sys_mmap2
+90      common  mmap                            sys_mmap
+91      common  munmap                          sys_munmap
+92      common  truncate                        sys_truncate                    compat_sys_truncate
+93      common  ftruncate                       sys_ftruncate                   compat_sys_ftruncate
+94      common  fchmod                          sys_fchmod
+95      common  fchown                          sys_fchown
+96      common  getpriority                     sys_getpriority
+97      common  setpriority                     sys_setpriority
+98      common  recv                            sys_recv
+99      common  statfs                          sys_statfs                      compat_sys_statfs
+100     common  fstatfs                         sys_fstatfs                     compat_sys_fstatfs
+101     common  stat64                          sys_stat64
+103     common  syslog                          sys_syslog
+104     common  setitimer                       sys_setitimer                   compat_sys_setitimer
+105     common  getitimer                       sys_getitimer                   compat_sys_getitimer
+106     common  capget                          sys_capget
+107     common  capset                          sys_capset
+108     common  pread64                         sys_pread64                     parisc_pread64
+109     common  pwrite64                        sys_pwrite64                    parisc_pwrite64
+110     common  getcwd                          sys_getcwd
+111     common  vhangup                         sys_vhangup
+112     common  fstat64                         sys_fstat64
+113     common  vfork                           sys_vfork_wrapper
+114     common  wait4                           sys_wait4                       compat_sys_wait4
+115     common  swapoff                         sys_swapoff
+116     common  sysinfo                         sys_sysinfo                     compat_sys_sysinfo
+117     common  shutdown                        sys_shutdown
+118     common  fsync                           sys_fsync
+119     common  madvise                         sys_madvise
+120     common  clone                           sys_clone_wrapper
+121     common  setdomainname                   sys_setdomainname
+122     common  sendfile                        sys_sendfile                    compat_sys_sendfile
+123     common  recvfrom                        sys_recvfrom
+124     common  adjtimex                        sys_adjtimex                    compat_sys_adjtimex
+125     common  mprotect                        sys_mprotect
+126     common  sigprocmask                     sys_sigprocmask                 compat_sys_sigprocmask
+128     common  init_module                     sys_init_module
+129     common  delete_module                   sys_delete_module
+131     common  quotactl                        sys_quotactl
+132     common  getpgid                         sys_getpgid
+133     common  fchdir                          sys_fchdir
+134     common  bdflush                         sys_bdflush
+135     common  sysfs                           sys_sysfs
+136     common  personality                     sys_personality                 parisc_personality
+138     common  setfsuid                        sys_setfsuid
+139     common  setfsgid                        sys_setfsgid
+140     common  _llseek                         sys_llseek
+141     common  getdents                        sys_getdents                    compat_sys_getdents
+142     common  _newselect                      sys_select                      compat_sys_select
+143     common  flock                           sys_flock
+144     common  msync                           sys_msync
+145     common  readv                           sys_readv                       compat_sys_readv
+146     common  writev                          sys_writev                      compat_sys_writev
+147     common  getsid                          sys_getsid
+148     common  fdatasync                       sys_fdatasync
+149     common  _sysctl                         sys_sysctl                      compat_sys_sysctl
+150     common  mlock                           sys_mlock
+151     common  munlock                         sys_munlock
+152     common  mlockall                        sys_mlockall
+153     common  munlockall                      sys_munlockall
+154     common  sched_setparam                  sys_sched_setparam
+155     common  sched_getparam                  sys_sched_getparam
+156     common  sched_setscheduler              sys_sched_setscheduler
+157     common  sched_getscheduler              sys_sched_getscheduler
+158     common  sched_yield                     sys_sched_yield
+159     common  sched_get_priority_max          sys_sched_get_priority_max
+160     common  sched_get_priority_min          sys_sched_get_priority_min
+161     common  sched_rr_get_interval           sys_sched_rr_get_interval       compat_sys_sched_rr_get_interval
+162     common  nanosleep                       sys_nanosleep                   compat_sys_nanosleep
+163     common  mremap                          sys_mremap
+164     common  setresuid                       sys_setresuid
+165     common  getresuid                       sys_getresuid
+166     common  sigaltstack                     sys_sigaltstack                 compat_sys_sigaltstack
+168     common  poll                            sys_poll
+170     common  setresgid                       sys_setresgid
+171     common  getresgid                       sys_getresgid
+172     common  prctl                           sys_prctl
+173     common  rt_sigreturn                    sys_rt_sigreturn
+174     common  rt_sigaction                    sys_rt_sigaction                compat_sys_rt_sigaction
+175     common  rt_sigprocmask                  sys_rt_sigprocmask              compat_sys_rt_sigprocmask
+176     common  rt_sigpending                   sys_rt_sigpending               compat_sys_rt_sigpending
+177     common  rt_sigtimedwait                 sys_rt_sigtimedwait             compat_sys_rt_sigtimedwait
+178     common  rt_sigqueueinfo                 sys_rt_sigqueueinfo             compat_sys_rt_sigqueueinfo
+179     common  rt_sigsuspend                   sys_rt_sigsuspend               compat_sys_rt_sigsuspend
+180     common  chown                           sys_chown
+181     common  setsockopt                      sys_setsockopt                  compat_sys_setsockopt
+182     common  getsockopt                      sys_getsockopt                  compat_sys_getsockopt
+183     common  sendmsg                         sys_sendmsg                     compat_sys_sendmsg
+184     common  recvmsg                         sys_recvmsg                     compat_sys_recvmsg
+185     common  semop                           sys_semop
+186     common  semget                          sys_semget
+187     common  semctl                          sys_semctl                      compat_sys_semctl
+188     common  msgsnd                          sys_msgsnd                      compat_sys_msgsnd
+189     common  msgrcv                          sys_msgrcv                      compat_sys_msgrcv
+190     common  msgget                          sys_msgget
+191     common  msgctl                          sys_msgctl                      compat_sys_msgctl
+192     common  shmat                           sys_shmat                       compat_sys_shmat
+193     common  shmdt                           sys_shmdt
+194     common  shmget                          sys_shmget
+195     common  shmctl                          sys_shmctl                      compat_sys_shmctl
+198     common  lstat64                         sys_lstat64
+199     common  truncate64                      sys_truncate64                  parisc_truncate64
+200     common  ftruncate64                     sys_ftruncate64                 parisc_ftruncate64
+201     common  getdents64                      sys_getdents64
+202     common  fcntl64                         sys_fcntl64                     compat_sys_fcntl64
+206     common  gettid                          sys_gettid
+207     common  readahead                       sys_readahead                   parisc_readahead
+208     common  tkill                           sys_tkill
+209     common  sendfile64                      sys_sendfile64                  compat_sys_sendfile64
+210     common  futex                           sys_futex                       compat_sys_futex
+211     common  sched_setaffinity               sys_sched_setaffinity           compat_sys_sched_setaffinity
+212     common  sched_getaffinity               sys_sched_getaffinity           compat_sys_sched_getaffinity
+215     common  io_setup                        sys_io_setup                    compat_sys_io_setup
+216     common  io_destroy                      sys_io_destroy
+217     common  io_getevents                    sys_io_getevents                compat_sys_io_getevents
+218     common  io_submit                       sys_io_submit                   compat_sys_io_submit
+219     common  io_cancel                       sys_io_cancel
+222     common  exit_group                      sys_exit_group
+223     common  lookup_dcookie                  sys_lookup_dcookie              compat_sys_lookup_dcookie
+224     common  epoll_create                    sys_epoll_create
+225     common  epoll_ctl                       sys_epoll_ctl
+226     common  epoll_wait                      sys_epoll_wait
+227     common  remap_file_pages                sys_remap_file_pages
+228     common  semtimedop                      sys_semtimedop                  compat_sys_semtimedop
+229     common  mq_open                         sys_mq_open                     compat_sys_mq_open
+230     common  mq_unlink                       sys_mq_unlink
+231     common  mq_timedsend                    sys_mq_timedsend                compat_sys_mq_timedsend
+232     common  mq_timedreceive                 sys_mq_timedreceive             compat_sys_mq_timedreceive
+233     common  mq_notify                       sys_mq_notify                   compat_sys_mq_notify
+234     common  mq_getsetattr                   sys_mq_getsetattr               compat_sys_mq_getsetattr
+235     common  waitid                          sys_waitid                      compat_sys_waitid
+236     common  fadvise64_64                    sys_fadvise64_64                parisc_fadvise64_64
+237     common  set_tid_address                 sys_set_tid_address
+238     common  setxattr                        sys_setxattr
+239     common  lsetxattr                       sys_lsetxattr
+240     common  fsetxattr                       sys_fsetxattr
+241     common  getxattr                        sys_getxattr
+242     common  lgetxattr                       sys_lgetxattr
+243     common  fgetxattr                       sys_fgetxattr
+244     common  listxattr                       sys_listxattr
+245     common  llistxattr                      sys_llistxattr
+246     common  flistxattr                      sys_flistxattr
+247     common  removexattr                     sys_removexattr
+248     common  lremovexattr                    sys_lremovexattr
+249     common  fremovexattr                    sys_fremovexattr
+250     common  timer_create                    sys_timer_create                compat_sys_timer_create
+251     common  timer_settime                   sys_timer_settime               compat_sys_timer_settime
+252     common  timer_gettime                   sys_timer_gettime               compat_sys_timer_gettime
+253     common  timer_getoverrun                sys_timer_getoverrun
+254     common  timer_delete                    sys_timer_delete
+255     common  clock_settime                   sys_clock_settime               compat_sys_clock_settime
+256     common  clock_gettime                   sys_clock_gettime               compat_sys_clock_gettime
+257     common  clock_getres                    sys_clock_getres                compat_sys_clock_getres
+258     common  clock_nanosleep                 sys_clock_nanosleep             compat_sys_clock_nanosleep
+259     common  tgkill                          sys_tgkill
+260     common  mbind                           sys_mbind                       compat_sys_mbind
+261     common  get_mempolicy                   sys_get_mempolicy               compat_sys_get_mempolicy
+262     common  set_mempolicy                   sys_set_mempolicy               compat_sys_set_mempolicy
+264     common  add_key                         sys_add_key
+265     common  request_key                     sys_request_key
+266     common  keyctl                          sys_keyctl                      compat_sys_keyctl
+267     common  ioprio_set                      sys_ioprio_set
+268     common  ioprio_get                      sys_ioprio_get
+269     common  inotify_init                    sys_inotify_init
+270     common  inotify_add_watch               sys_inotify_add_watch
+271     common  inotify_rm_watch                sys_inotify_rm_watch
+272     common  migrate_pages                   sys_migrate_pages
+273     common  pselect6                        sys_pselect6                    compat_sys_pselect6
+274     common  ppoll                           sys_ppoll                       compat_sys_ppoll
+275     common  openat                          sys_openat                      compat_sys_openat
+276     common  mkdirat                         sys_mkdirat
+277     common  mknodat                         sys_mknodat
+278     common  fchownat                        sys_fchownat
+279     common  futimesat                       sys_futimesat                   compat_sys_futimesat
+280     common  fstatat64                       sys_fstatat64
+281     common  unlinkat                        sys_unlinkat
+282     common  renameat                        sys_renameat
+283     common  linkat                          sys_linkat
+284     common  symlinkat                       sys_symlinkat
+285     common  readlinkat                      sys_readlinkat
+286     common  fchmodat                        sys_fchmodat
+287     common  faccessat                       sys_faccessat
+288     common  unshare                         sys_unshare
+289     common  set_robust_list                 sys_set_robust_list             compat_sys_set_robust_list
+290     common  get_robust_list                 sys_get_robust_list             compat_sys_get_robust_list
+291     common  splice                          sys_splice
+292     common  sync_file_range                 sys_sync_file_range             parisc_sync_file_range
+293     common  tee                             sys_tee
+294     common  vmsplice                        sys_vmsplice                    compat_sys_vmsplice
+295     common  move_pages                      sys_move_pages                  compat_sys_move_pages
+296     common  getcpu                          sys_getcpu
+297     common  epoll_pwait                     sys_epoll_pwait                 compat_sys_epoll_pwait
+298     common  statfs64                        sys_statfs64                    compat_sys_statfs64
+299     common  fstatfs64                       sys_fstatfs64                   compat_sys_fstatfs64
+300     common  kexec_load                      sys_kexec_load                  compat_sys_kexec_load
+301     common  utimensat                       sys_utimensat                   compat_sys_utimensat
+302     common  signalfd                        sys_signalfd                    compat_sys_signalfd
+304     common  eventfd                         sys_eventfd
+305     common  fallocate                       sys_fallocate                   parisc_fallocate
+306     common  timerfd_create                  sys_timerfd_create
+307     common  timerfd_settime                 sys_timerfd_settime             compat_sys_timerfd_settime
+308     common  timerfd_gettime                 sys_timerfd_gettime             compat_sys_timerfd_gettime
+309     common  signalfd4                       sys_signalfd4                   compat_sys_signalfd4
+310     common  eventfd2                        sys_eventfd2
+311     common  epoll_create1                   sys_epoll_create1
+312     common  dup3                            sys_dup3
+313     common  pipe2                           sys_pipe2
+314     common  inotify_init1                   sys_inotify_init1
+315     common  preadv                          sys_preadv                      compat_sys_preadv
+316     common  pwritev                         sys_pwritev                     compat_sys_pwritev
+317     common  rt_tgsigqueueinfo               sys_rt_tgsigqueueinfo           compat_sys_rt_tgsigqueueinfo
+318     common  perf_event_open                 sys_perf_event_open
+319     common  recvmmsg                        sys_recvmmsg                    compat_sys_recvmmsg
+320     common  accept4                         sys_accept4
+321     common  prlimit64                       sys_prlimit64
+322     common  fanotify_init                   sys_fanotify_init
+323     common  fanotify_mark                   sys_fanotify_mark               sys32_fanotify_mark
+324     common  clock_adjtime                   sys_clock_adjtime               compat_sys_clock_adjtime
+325     common  name_to_handle_at               sys_name_to_handle_at
+326     common  open_by_handle_at               sys_open_by_handle_at           compat_sys_open_by_handle_at
+327     common  syncfs                          sys_syncfs
+328     common  setns                           sys_setns
+329     common  sendmmsg                        sys_sendmmsg                    compat_sys_sendmmsg
+330     common  process_vm_readv                sys_process_vm_readv            compat_sys_process_vm_readv
+331     common  process_vm_writev               sys_process_vm_writev           compat_sys_process_vm_writev
+332     common  kcmp                            sys_kcmp
+333     common  finit_module                    sys_finit_module
+334     common  sched_setattr                   sys_sched_setattr
+335     common  sched_getattr                   sys_sched_getattr
+336     common  utimes                          sys_utimes                      compat_sys_utimes
+337     common  renameat2                       sys_renameat2
+338     common  seccomp                         sys_seccomp
+339     common  getrandom                       sys_getrandom
+340     common  memfd_create                    sys_memfd_create
+341     common  bpf                             sys_bpf
+342     common  execveat                        sys_execveat                    compat_sys_execveat
+343     common  membarrier                      sys_membarrier
+344     common  userfaultfd                     sys_userfaultfd
+345     common  mlock2                          sys_mlock2
+346     common  copy_file_range                 sys_copy_file_range
+347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
+348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
+349     common  statx                           sys_statx
+350	common  io_pgetevents			sys_io_pgetevents		compat_sys_io_pgetevents
\ No newline at end of file
diff --git a/arch/parisc/kernel/syscalls/syscall_64.tbl b/arch/parisc/kernel/syscalls/syscall_64.tbl
new file mode 100644
index 0000000..48d6366
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscall_64.tbl
@@ -0,0 +1,342 @@
+#
+# 64-bit system call numbers and entry vectors
+#
+# The format is:
+# <number> <abi> <name> <entry point>
+#
+# The abi is "common" for this file.
+#
+0       common  restart_syscall                 sys_restart_syscall
+1       common  exit                            sys_exit
+2       common  fork                            sys_fork_wrapper
+3       common  read                            sys_read
+4       common  write                           sys_write
+5       common  open                            sys_open
+6       common  close                           sys_close
+7       common  waitpid                         sys_waitpid
+8       common  creat                           sys_creat
+9       common  link                            sys_link
+10      common  unlink                          sys_unlink
+11      common  execve                          sys_execve
+12      common  chdir                           sys_chdir
+13      common  time                            sys_time
+14      common  mknod                           sys_mknod
+15      common  chmod                           sys_chmod
+16      common  lchown                          sys_lchown
+17      common  socket                          sys_socket
+18      common  stat                            sys_newstat
+19      common  lseek                           sys_lseek
+20      common  getpid                          sys_getpid
+21      common  mount                           sys_mount
+22      common  bind                            sys_bind
+23      common  setuid                          sys_setuid
+24      common  getuid                          sys_getuid
+25      common  stime                           sys_stime
+26      common  ptrace                          sys_ptrace
+27      common  alarm                           sys_alarm
+28      common  fstat                           sys_newfstat
+29      common  pause                           sys_pause
+30      common  utime                           sys_utime
+31      common  connect                         sys_connect
+32      common  listen                          sys_listen
+33      common  access                          sys_access
+34      common  nice                            sys_nice
+35      common  accept                          sys_accept
+36      common  sync                            sys_sync
+37      common  kill                            sys_kill
+38      common  rename                          sys_rename
+39      common  mkdir                           sys_mkdir
+40      common  rmdir                           sys_rmdir
+41      common  dup                             sys_dup
+42      common  pipe                            sys_pipe
+43      common  times                           sys_times
+44      common  getsockname                     sys_getsockname
+45      common  brk                             sys_brk
+46      common  setgid                          sys_setgid
+47      common  getgid                          sys_getgid
+48      common  signal                          sys_signal
+49      common  geteuid                         sys_geteuid
+50      common  getegid                         sys_getegid
+51      common  acct                            sys_acct
+52      common  umount2                         sys_umount
+53      common  getpeername                     sys_getpeername
+54      common  ioctl                           sys_ioctl
+55      common  fcntl                           sys_fcntl
+56      common  socketpair                      sys_socketpair
+57      common  setpgid                         sys_setpgid
+58      common  send                            sys_send
+59      common  uname                           sys_newuname
+60      common  umask                           sys_umask
+61      common  chroot                          sys_chroot
+62      common  ustat                           sys_ustat
+63      common  dup2                            sys_dup2
+64      common  getppid                         sys_getppid
+65      common  getpgrp                         sys_getpgrp
+66      common  setsid                          sys_setsid
+67      common  pivot_root                      sys_pivot_root
+68      common  sgetmask                        sys_sgetmask
+69      common  ssetmask                        sys_ssetmask
+70      common  setreuid                        sys_setreuid
+71      common  setregid                        sys_setregid
+72      common  mincore                         sys_mincore
+73      common  sigpending                      sys_sigpending
+74      common  sethostname                     sys_sethostname
+75      common  setrlimit                       sys_setrlimit
+76      common  getrlimit                       sys_getrlimit
+77      common  getrusage                       sys_getrusage
+78      common  gettimeofday                    sys_gettimeofday
+79      common  settimeofday                    sys_settimeofday
+80      common  getgroups                       sys_getgroups
+81      common  setgroups                       sys_setgroups
+82      common  sendto                          sys_sendto
+83      common  symlink                         sys_symlink
+84      common  lstat                           sys_newlstat
+85      common  readlink                        sys_readlink
+86      common  uselib                          sys_ni_syscall
+87      common  swapon                          sys_swapon
+88      common  reboot                          sys_reboot
+89      common  mmap2                           sys_mmap2
+90      common  mmap                            sys_mmap
+91      common  munmap                          sys_munmap
+92      common  truncate                        sys_truncate
+93      common  ftruncate                       sys_ftruncate
+94      common  fchmod                          sys_fchmod
+95      common  fchown                          sys_fchown
+96      common  getpriority                     sys_getpriority
+97      common  setpriority                     sys_setpriority
+98      common  recv                            sys_recv
+99      common  statfs                          sys_statfs
+100     common  fstatfs                         sys_fstatfs
+101     common  stat64                          sys_stat64
+103     common  syslog                          sys_syslog
+104     common  setitimer                       sys_setitimer
+105     common  getitimer                       sys_getitimer
+106     common  capget                          sys_capget
+107     common  capset                          sys_capset
+108     common  pread64                         sys_pread64
+109     common  pwrite64                        sys_pwrite64
+110     common  getcwd                          sys_getcwd
+111     common  vhangup                         sys_vhangup
+112     common  fstat64                         sys_fstat64
+113     common  vfork                           sys_vfork_wrapper
+114     common  wait4                           sys_wait4
+115     common  swapoff                         sys_swapoff
+116     common  sysinfo                         sys_sysinfo
+117     common  shutdown                        sys_shutdown
+118     common  fsync                           sys_fsync
+119     common  madvise                         sys_madvise
+120     common  clone                           sys_clone_wrapper
+121     common  setdomainname                   sys_setdomainname
+122     common  sendfile                        sys_sendfile
+123     common  recvfrom                        sys_recvfrom
+124     common  adjtimex                        sys_adjtimex
+125     common  mprotect                        sys_mprotect
+126     common  sigprocmask                     sys_sigprocmask
+128     common  init_module                     sys_init_module
+129     common  delete_module                   sys_delete_module
+131     common  quotactl                        sys_quotactl
+132     common  getpgid                         sys_getpgid
+133     common  fchdir                          sys_fchdir
+134     common  bdflush                         sys_bdflush
+135     common  sysfs                           sys_sysfs
+136     common  personality                     sys_personality
+138     common  setfsuid                        sys_setfsuid
+139     common  setfsgid                        sys_setfsgid
+140     common  _llseek                         sys_llseek
+141     common  getdents                        sys_getdents
+142     common  _newselect                      sys_select
+143     common  flock                           sys_flock
+144     common  msync                           sys_msync
+145     common  readv                           sys_readv
+146     common  writev                          sys_writev
+147     common  getsid                          sys_getsid
+148     common  fdatasync                       sys_fdatasync
+149     common  _sysctl                         sys_sysctl
+150     common  mlock                           sys_mlock
+151     common  munlock                         sys_munlock
+152     common  mlockall                        sys_mlockall
+153     common  munlockall                      sys_munlockall
+154     common  sched_setparam                  sys_sched_setparam
+155     common  sched_getparam                  sys_sched_getparam
+156     common  sched_setscheduler              sys_sched_setscheduler
+157     common  sched_getscheduler              sys_sched_getscheduler
+158     common  sched_yield                     sys_sched_yield
+159     common  sched_get_priority_max          sys_sched_get_priority_max
+160     common  sched_get_priority_min          sys_sched_get_priority_min
+161     common  sched_rr_get_interval           sys_sched_rr_get_interval
+162     common  nanosleep                       sys_nanosleep
+163     common  mremap                          sys_mremap
+164     common  setresuid                       sys_setresuid
+165     common  getresuid                       sys_getresuid
+166     common  sigaltstack                     sys_sigaltstack
+168     common  poll                            sys_poll
+170     common  setresgid                       sys_setresgid
+171     common  getresgid                       sys_getresgid
+172     common  prctl                           sys_prctl
+173     common  rt_sigreturn                    sys_rt_sigreturn
+174     common  rt_sigaction                    sys_rt_sigaction
+175     common  rt_sigprocmask                  sys_rt_sigprocmask
+176     common  rt_sigpending                   sys_rt_sigpending
+177     common  rt_sigtimedwait                 sys_rt_sigtimedwait
+178     common  rt_sigqueueinfo                 sys_rt_sigqueueinfo
+179     common  rt_sigsuspend                   sys_rt_sigsuspend
+180     common  chown                           sys_chown
+181     common  setsockopt                      sys_setsockopt
+182     common  getsockopt                      sys_getsockopt
+183     common  sendmsg                         sys_sendmsg
+184     common  recvmsg                         sys_recvmsg
+185     common  semop                           sys_semop
+186     common  semget                          sys_semget
+187     common  semctl                          sys_semctl
+188     common  msgsnd                          sys_msgsnd
+189     common  msgrcv                          sys_msgrcv
+190     common  msgget                          sys_msgget
+191     common  msgctl                          sys_msgctl
+192     common  shmat                           sys_shmat
+193     common  shmdt                           sys_shmdt
+194     common  shmget                          sys_shmget
+195     common  shmctl                          sys_shmctl
+198     common  lstat64                         sys_lstat64
+199     common  truncate64                      sys_truncate64
+200     common  ftruncate64                     sys_ftruncate64
+201     common  getdents64                      sys_getdents64
+202     common  fcntl64                         sys_fcntl64
+206     common  gettid                          sys_gettid
+207     common  readahead                       sys_readahead
+208     common  tkill                           sys_tkill
+209     common  sendfile64                      sys_sendfile64
+210     common  futex                           sys_futex
+211     common  sched_setaffinity               sys_sched_setaffinity
+212     common  sched_getaffinity               sys_sched_getaffinity
+215     common  io_setup                        sys_io_setup
+216     common  io_destroy                      sys_io_destroy
+217     common  io_getevents                    sys_io_getevents
+218     common  io_submit                       sys_io_submit
+219     common  io_cancel                       sys_io_cancel
+222     common  exit_group                      sys_exit_group
+223     common  lookup_dcookie                  sys_lookup_dcookie
+224     common  epoll_create                    sys_epoll_create
+225     common  epoll_ctl                       sys_epoll_ctl
+226     common  epoll_wait                      sys_epoll_wait
+227     common  remap_file_pages                sys_remap_file_pages
+228     common  semtimedop                      sys_semtimedop
+229     common  mq_open                         sys_mq_open
+230     common  mq_unlink                       sys_mq_unlink
+231     common  mq_timedsend                    sys_mq_timedsend
+232     common  mq_timedreceive                 sys_mq_timedreceive
+233     common  mq_notify                       sys_mq_notify
+234     common  mq_getsetattr                   sys_mq_getsetattr
+235     common  waitid                          sys_waitid
+236     common  fadvise64_64                    sys_fadvise64_64
+237     common  set_tid_address                 sys_set_tid_address
+238     common  setxattr                        sys_setxattr
+239     common  lsetxattr                       sys_lsetxattr
+240     common  fsetxattr                       sys_fsetxattr
+241     common  getxattr                        sys_getxattr
+242     common  lgetxattr                       sys_lgetxattr
+243     common  fgetxattr                       sys_fgetxattr
+244     common  listxattr                       sys_listxattr
+245     common  llistxattr                      sys_llistxattr
+246     common  flistxattr                      sys_flistxattr
+247     common  removexattr                     sys_removexattr
+248     common  lremovexattr                    sys_lremovexattr
+249     common  fremovexattr                    sys_fremovexattr
+250     common  timer_create                    sys_timer_create
+251     common  timer_settime                   sys_timer_settime
+252     common  timer_gettime                   sys_timer_gettime
+253     common  timer_getoverrun                sys_timer_getoverrun
+254     common  timer_delete                    sys_timer_delete
+255     common  clock_settime                   sys_clock_settime
+256     common  clock_gettime                   sys_clock_gettime
+257     common  clock_getres                    sys_clock_getres
+258     common  clock_nanosleep                 sys_clock_nanosleep
+259     common  tgkill                          sys_tgkill
+260     common  mbind                           sys_mbind
+261     common  get_mempolicy                   sys_get_mempolicy
+262     common  set_mempolicy                   sys_set_mempolicy
+264     common  add_key                         sys_add_key
+265     common  request_key                     sys_request_key
+266     common  keyctl                          sys_keyctl
+267     common  ioprio_set                      sys_ioprio_set
+268     common  ioprio_get                      sys_ioprio_get
+269     common  inotify_init                    sys_inotify_init
+270     common  inotify_add_watch               sys_inotify_add_watch
+271     common  inotify_rm_watch                sys_inotify_rm_watch
+272     common  migrate_pages                   sys_migrate_pages
+273     common  pselect6                        sys_pselect6
+274     common  ppoll                           sys_ppoll
+275     common  openat                          sys_openat
+276     common  mkdirat                         sys_mkdirat
+277     common  mknodat                         sys_mknodat
+278     common  fchownat                        sys_fchownat
+279     common  futimesat                       sys_futimesat
+280     common  fstatat64                       sys_fstatat64
+281     common  unlinkat                        sys_unlinkat
+282     common  renameat                        sys_renameat
+283     common  linkat                          sys_linkat
+284     common  symlinkat                       sys_symlinkat
+285     common  readlinkat                      sys_readlinkat
+286     common  fchmodat                        sys_fchmodat
+287     common  faccessat                       sys_faccessat
+288     common  unshare                         sys_unshare
+289     common  set_robust_list                 sys_set_robust_list
+290     common  get_robust_list                 sys_get_robust_list
+291     common  splice                          sys_splice
+292     common  sync_file_range                 sys_sync_file_range
+293     common  tee                             sys_tee
+294     common  vmsplice                        sys_vmsplice
+295     common  move_pages                      sys_move_pages
+296     common  getcpu                          sys_getcpu
+297     common  epoll_pwait                     sys_epoll_pwait
+298     common  statfs64                        sys_statfs64
+299     common  fstatfs64                       sys_fstatfs64
+300     common  kexec_load                      sys_kexec_load
+301     common  utimensat                       sys_utimensat
+302     common  signalfd                        sys_signalfd
+304     common  eventfd                         sys_eventfd
+305     common  fallocate                       sys_fallocate
+306     common  timerfd_create                  sys_timerfd_create
+307     common  timerfd_settime                 sys_timerfd_settime
+308     common  timerfd_gettime                 sys_timerfd_gettime
+309     common  signalfd4                       sys_signalfd4
+310     common  eventfd2                        sys_eventfd2
+311     common  epoll_create1                   sys_epoll_create1
+312     common  dup3                            sys_dup3
+313     common  pipe2                           sys_pipe2
+314     common  inotify_init1                   sys_inotify_init1
+315     common  preadv                          sys_preadv
+316     common  pwritev                         sys_pwritev
+317     common  rt_tgsigqueueinfo               sys_rt_tgsigqueueinfo
+318     common  perf_event_open                 sys_perf_event_open
+319     common  recvmmsg                        sys_recvmmsg
+320     common  accept4                         sys_accept4
+321     common  prlimit64                       sys_prlimit64
+322     common  fanotify_init                   sys_fanotify_init
+323     common  fanotify_mark                   sys_fanotify_mark
+324     common  clock_adjtime                   sys_clock_adjtime
+325     common  name_to_handle_at               sys_name_to_handle_at
+326     common  open_by_handle_at               sys_open_by_handle_at
+327     common  syncfs                          sys_syncfs
+328     common  setns                           sys_setns
+329     common  sendmmsg                        sys_sendmmsg
+330     common  process_vm_readv                sys_process_vm_readv
+331     common  process_vm_writev               sys_process_vm_writev
+332     common  kcmp                            sys_kcmp
+333     common  finit_module                    sys_finit_module
+334     common  sched_setattr                   sys_sched_setattr
+335     common  sched_getattr                   sys_sched_getattr
+336     common  utimes                          sys_utimes
+337     common  renameat2                       sys_renameat2
+338     common  seccomp                         sys_seccomp
+339     common  getrandom                       sys_getrandom
+340     common  memfd_create                    sys_memfd_create
+341     common  bpf                             sys_bpf
+342     common  execveat                        sys_execveat
+343     common  membarrier                      sys_membarrier
+344     common  userfaultfd                     sys_userfaultfd
+345     common  mlock2                          sys_mlock2
+346     common  copy_file_range                 sys_copy_file_range
+347     common  preadv2                         sys_preadv2
+348     common  pwritev2                        sys_pwritev2
+349     common  statx                           sys_statx
+350     common  io_pgetevents                   sys_io_pgetevents
\ No newline at end of file
diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh b/arch/parisc/kernel/syscalls/syscallhdr.sh
new file mode 100644
index 0000000..607d4ca
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
@@ -0,0 +1,35 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+prefix="$4"
+offset="$5"
+
+fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+    echo "#ifndef ${fileguard}"
+    echo "#define ${fileguard}"
+    echo ""
+
+    nxt=0
+    while read nr abi name entry compat ; do
+	if [ -z "$offset" ]; then
+	    echo -e "#define __NR_${prefix}${name}\t$nr"
+	else
+	    echo -e "#define __NR_${prefix}${name}\t($offset + $nr)"
+	fi
+	nxt=$nr
+	let nxt=nxt+1
+    done
+
+    echo ""
+    echo "#ifdef __KERNEL__"
+    echo -e "#define __NR_syscalls\t$nxt"
+    echo "#endif"
+    echo ""
+    echo "#endif /* ${fileguard} */"
+) > "$out"
diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh b/arch/parisc/kernel/syscalls/syscalltbl.sh
new file mode 100644
index 0000000..c441acc
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscalltbl.sh
@@ -0,0 +1,42 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abi="$3"
+offset="$4"
+
+emit() {
+    nxt="$1"
+    nr="$2"
+    entry="$3"
+
+    while [ $nxt -lt $nr ]; do
+	echo "__SYSCALL($nxt, sys_ni_syscall, )"
+        let nxt=nxt+1
+    done
+
+    echo "__SYSCALL($nr, $entry, )"
+}
+
+grep '^[0-9]' "$in" | sort -n | (
+    if [ -z "$offset" ]; then
+	nxt=0
+    else
+	nxt=$offset
+    fi
+
+    while read nr abi name entry compat ; do
+	if [ "$my_abi" = "64" -o "$my_abi" = "32" ]; then
+            emit $nxt $nr $entry
+	elif [ "$my_abi" = "c32" ]; then
+	    if [ -z "$compat" ]; then
+                emit $nxt $nr $entry
+            else
+                emit $nxt $nr $compat
+            fi
+	fi
+	nxt=$nr
+        let nxt=nxt+1
+    done
+) > "$out"
-- 
1.9.1



From - Thu Nov 08 21:42:03 2018
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X-Mozilla-Keys:                                                                                 
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 4/5] parisc: uapi header and system call table file generation
Date: Thu, 27 Sep 2018 19:54:26 +0530
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To: linux-parisc@vger.kernel.org,
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System call table generation script must be run to generate
unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
will have changes which will invokes the script.

This patch will generate unistd_32/64.h and syscall_table_
32/64/c32.h files by the syscall table generation script
invoked by arch/parisc/Makefile and the generated files against
the removed files will be identical.

The generated uapi header file will be included in uapi/asm/
unistd_32/64.h and generated system call table support file will
be included by arch/sparc/kernel/syscall_table_32/64.S file.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/Makefile                  |   4 +
 arch/parisc/include/asm/Kbuild        |   3 +
 arch/parisc/include/uapi/asm/Kbuild   |   2 +
 arch/parisc/include/uapi/asm/unistd.h | 375 +--------------------------
 arch/parisc/kernel/syscall.S          |  12 +-
 arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------
 arch/parisc/kernel/syscall_table_32.S |  13 +
 arch/parisc/kernel/syscall_table_64.S |  20 ++
 8 files changed, 51 insertions(+), 837 deletions(-)
 delete mode 100644 arch/parisc/kernel/syscall_table.S
 create mode 100644 arch/parisc/kernel/syscall_table_32.S
 create mode 100644 arch/parisc/kernel/syscall_table_64.S

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5ce0302..6b217da 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -159,6 +159,10 @@ endef
 
 # we require gcc 3.3 or above to compile the kernel
 archprepare: checkbin
+
+archheaders:
+	$(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all
+
 checkbin:
 	@if test "$(cc-version)" -lt "0303"; then \
 		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 2013d63..dd52f2c 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -23,3 +23,6 @@ generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += syscall_table_32.h
+generic-y += syscall_table_64.h
+generic-y += syscall_table_c32.h
\ No newline at end of file
diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
index 286ef5a..02103fc 100644
--- a/arch/parisc/include/uapi/asm/Kbuild
+++ b/arch/parisc/include/uapi/asm/Kbuild
@@ -7,3 +7,5 @@ generic-y += kvm_para.h
 generic-y += param.h
 generic-y += poll.h
 generic-y += resource.h
+generic-y += unistd_32.h
+generic-y += unistd_64.h
\ No newline at end of file
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 255c62a..643a006 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -2,376 +2,15 @@
 #ifndef _UAPI_ASM_PARISC_UNISTD_H_
 #define _UAPI_ASM_PARISC_UNISTD_H_
 
-/*
- * Linux system call numbers.
- *
- * Cary Coutant says that we should just use another syscall gateway
- * page to avoid clashing with the HPUX space, and I think he's right:
- * it will would keep a branch out of our syscall entry path, at the
- * very least.  If we decide to change it later, we can ``just'' tweak
- * the LINUX_GATEWAY_ADDR define at the bottom and make __NR_Linux be
- * 1024 or something.  Oh, and recompile libc. =)
- */
-
-#define __NR_Linux                0
-#define __NR_restart_syscall      (__NR_Linux + 0)
-#define __NR_exit                 (__NR_Linux + 1)
-#define __NR_fork                 (__NR_Linux + 2)
-#define __NR_read                 (__NR_Linux + 3)
-#define __NR_write                (__NR_Linux + 4)
-#define __NR_open                 (__NR_Linux + 5)
-#define __NR_close                (__NR_Linux + 6)
-#define __NR_waitpid              (__NR_Linux + 7)
-#define __NR_creat                (__NR_Linux + 8)
-#define __NR_link                 (__NR_Linux + 9)
-#define __NR_unlink              (__NR_Linux + 10)
-#define __NR_execve              (__NR_Linux + 11)
-#define __NR_chdir               (__NR_Linux + 12)
-#define __NR_time                (__NR_Linux + 13)
-#define __NR_mknod               (__NR_Linux + 14)
-#define __NR_chmod               (__NR_Linux + 15)
-#define __NR_lchown              (__NR_Linux + 16)
-#define __NR_socket              (__NR_Linux + 17)
-#define __NR_stat                (__NR_Linux + 18)
-#define __NR_lseek               (__NR_Linux + 19)
-#define __NR_getpid              (__NR_Linux + 20)
-#define __NR_mount               (__NR_Linux + 21)
-#define __NR_bind                (__NR_Linux + 22)
-#define __NR_setuid              (__NR_Linux + 23)
-#define __NR_getuid              (__NR_Linux + 24)
-#define __NR_stime               (__NR_Linux + 25)
-#define __NR_ptrace              (__NR_Linux + 26)
-#define __NR_alarm               (__NR_Linux + 27)
-#define __NR_fstat               (__NR_Linux + 28)
-#define __NR_pause               (__NR_Linux + 29)
-#define __NR_utime               (__NR_Linux + 30)
-#define __NR_connect             (__NR_Linux + 31)
-#define __NR_listen              (__NR_Linux + 32)
-#define __NR_access              (__NR_Linux + 33)
-#define __NR_nice                (__NR_Linux + 34)
-#define __NR_accept              (__NR_Linux + 35)
-#define __NR_sync                (__NR_Linux + 36)
-#define __NR_kill                (__NR_Linux + 37)
-#define __NR_rename              (__NR_Linux + 38)
-#define __NR_mkdir               (__NR_Linux + 39)
-#define __NR_rmdir               (__NR_Linux + 40)
-#define __NR_dup                 (__NR_Linux + 41)
-#define __NR_pipe                (__NR_Linux + 42)
-#define __NR_times               (__NR_Linux + 43)
-#define __NR_getsockname         (__NR_Linux + 44)
-#define __NR_brk                 (__NR_Linux + 45)
-#define __NR_setgid              (__NR_Linux + 46)
-#define __NR_getgid              (__NR_Linux + 47)
-#define __NR_signal              (__NR_Linux + 48)
-#define __NR_geteuid             (__NR_Linux + 49)
-#define __NR_getegid             (__NR_Linux + 50)
-#define __NR_acct                (__NR_Linux + 51)
-#define __NR_umount2             (__NR_Linux + 52)
-#define __NR_getpeername         (__NR_Linux + 53)
-#define __NR_ioctl               (__NR_Linux + 54)
-#define __NR_fcntl               (__NR_Linux + 55)
-#define __NR_socketpair          (__NR_Linux + 56)
-#define __NR_setpgid             (__NR_Linux + 57)
-#define __NR_send                (__NR_Linux + 58)
-#define __NR_uname               (__NR_Linux + 59)
-#define __NR_umask               (__NR_Linux + 60)
-#define __NR_chroot              (__NR_Linux + 61)
-#define __NR_ustat               (__NR_Linux + 62)
-#define __NR_dup2                (__NR_Linux + 63)
-#define __NR_getppid             (__NR_Linux + 64)
-#define __NR_getpgrp             (__NR_Linux + 65)
-#define __NR_setsid              (__NR_Linux + 66)
-#define __NR_pivot_root          (__NR_Linux + 67)
-#define __NR_sgetmask            (__NR_Linux + 68)
-#define __NR_ssetmask            (__NR_Linux + 69)
-#define __NR_setreuid            (__NR_Linux + 70)
-#define __NR_setregid            (__NR_Linux + 71)
-#define __NR_mincore             (__NR_Linux + 72)
-#define __NR_sigpending          (__NR_Linux + 73)
-#define __NR_sethostname         (__NR_Linux + 74)
-#define __NR_setrlimit           (__NR_Linux + 75)
-#define __NR_getrlimit           (__NR_Linux + 76)
-#define __NR_getrusage           (__NR_Linux + 77)
-#define __NR_gettimeofday        (__NR_Linux + 78)
-#define __NR_settimeofday        (__NR_Linux + 79)
-#define __NR_getgroups           (__NR_Linux + 80)
-#define __NR_setgroups           (__NR_Linux + 81)
-#define __NR_sendto              (__NR_Linux + 82)
-#define __NR_symlink             (__NR_Linux + 83)
-#define __NR_lstat               (__NR_Linux + 84)
-#define __NR_readlink            (__NR_Linux + 85)
-#define __NR_uselib              (__NR_Linux + 86)
-#define __NR_swapon              (__NR_Linux + 87)
-#define __NR_reboot              (__NR_Linux + 88)
-#define __NR_mmap2               (__NR_Linux + 89)
-#define __NR_mmap                (__NR_Linux + 90)
-#define __NR_munmap              (__NR_Linux + 91)
-#define __NR_truncate            (__NR_Linux + 92)
-#define __NR_ftruncate           (__NR_Linux + 93)
-#define __NR_fchmod              (__NR_Linux + 94)
-#define __NR_fchown              (__NR_Linux + 95)
-#define __NR_getpriority         (__NR_Linux + 96)
-#define __NR_setpriority         (__NR_Linux + 97)
-#define __NR_recv                (__NR_Linux + 98)
-#define __NR_statfs              (__NR_Linux + 99)
-#define __NR_fstatfs            (__NR_Linux + 100)
-#define __NR_stat64             (__NR_Linux + 101)
-/* #define __NR_socketcall         (__NR_Linux + 102) */
-#define __NR_syslog             (__NR_Linux + 103)
-#define __NR_setitimer          (__NR_Linux + 104)
-#define __NR_getitimer          (__NR_Linux + 105)
-#define __NR_capget             (__NR_Linux + 106)
-#define __NR_capset             (__NR_Linux + 107)
-#define __NR_pread64            (__NR_Linux + 108)
-#define __NR_pwrite64           (__NR_Linux + 109)
-#define __NR_getcwd             (__NR_Linux + 110)
-#define __NR_vhangup            (__NR_Linux + 111)
-#define __NR_fstat64            (__NR_Linux + 112)
-#define __NR_vfork              (__NR_Linux + 113)
-#define __NR_wait4              (__NR_Linux + 114)
-#define __NR_swapoff            (__NR_Linux + 115)
-#define __NR_sysinfo            (__NR_Linux + 116)
-#define __NR_shutdown           (__NR_Linux + 117)
-#define __NR_fsync              (__NR_Linux + 118)
-#define __NR_madvise            (__NR_Linux + 119)
-#define __NR_clone              (__NR_Linux + 120)
-#define __NR_setdomainname      (__NR_Linux + 121)
-#define __NR_sendfile           (__NR_Linux + 122)
-#define __NR_recvfrom           (__NR_Linux + 123)
-#define __NR_adjtimex           (__NR_Linux + 124)
-#define __NR_mprotect           (__NR_Linux + 125)
-#define __NR_sigprocmask        (__NR_Linux + 126)
-#define __NR_create_module      (__NR_Linux + 127) /* not used */
-#define __NR_init_module        (__NR_Linux + 128)
-#define __NR_delete_module      (__NR_Linux + 129)
-#define __NR_get_kernel_syms    (__NR_Linux + 130) /* not used */
-#define __NR_quotactl           (__NR_Linux + 131)
-#define __NR_getpgid            (__NR_Linux + 132)
-#define __NR_fchdir             (__NR_Linux + 133)
-#define __NR_bdflush            (__NR_Linux + 134)
-#define __NR_sysfs              (__NR_Linux + 135)
-#define __NR_personality        (__NR_Linux + 136)
-#define __NR_afs_syscall        (__NR_Linux + 137) /* not used */
-#define __NR_setfsuid           (__NR_Linux + 138)
-#define __NR_setfsgid           (__NR_Linux + 139)
-#define __NR__llseek            (__NR_Linux + 140)
-#define __NR_getdents           (__NR_Linux + 141)
-#define __NR__newselect         (__NR_Linux + 142)
-#define __NR_flock              (__NR_Linux + 143)
-#define __NR_msync              (__NR_Linux + 144)
-#define __NR_readv              (__NR_Linux + 145)
-#define __NR_writev             (__NR_Linux + 146)
-#define __NR_getsid             (__NR_Linux + 147)
-#define __NR_fdatasync          (__NR_Linux + 148)
-#define __NR__sysctl            (__NR_Linux + 149)
-#define __NR_mlock              (__NR_Linux + 150)
-#define __NR_munlock            (__NR_Linux + 151)
-#define __NR_mlockall           (__NR_Linux + 152)
-#define __NR_munlockall         (__NR_Linux + 153)
-#define __NR_sched_setparam             (__NR_Linux + 154)
-#define __NR_sched_getparam             (__NR_Linux + 155)
-#define __NR_sched_setscheduler         (__NR_Linux + 156)
-#define __NR_sched_getscheduler         (__NR_Linux + 157)
-#define __NR_sched_yield                (__NR_Linux + 158)
-#define __NR_sched_get_priority_max     (__NR_Linux + 159)
-#define __NR_sched_get_priority_min     (__NR_Linux + 160)
-#define __NR_sched_rr_get_interval      (__NR_Linux + 161)
-#define __NR_nanosleep          (__NR_Linux + 162)
-#define __NR_mremap             (__NR_Linux + 163)
-#define __NR_setresuid          (__NR_Linux + 164)
-#define __NR_getresuid          (__NR_Linux + 165)
-#define __NR_sigaltstack        (__NR_Linux + 166)
-#define __NR_query_module       (__NR_Linux + 167) /* not used */
-#define __NR_poll               (__NR_Linux + 168)
-#define __NR_nfsservctl         (__NR_Linux + 169) /* not used */
-#define __NR_setresgid          (__NR_Linux + 170)
-#define __NR_getresgid          (__NR_Linux + 171)
-#define __NR_prctl              (__NR_Linux + 172)
-#define __NR_rt_sigreturn       (__NR_Linux + 173)
-#define __NR_rt_sigaction       (__NR_Linux + 174)
-#define __NR_rt_sigprocmask     (__NR_Linux + 175)
-#define __NR_rt_sigpending      (__NR_Linux + 176)
-#define __NR_rt_sigtimedwait    (__NR_Linux + 177)
-#define __NR_rt_sigqueueinfo    (__NR_Linux + 178)
-#define __NR_rt_sigsuspend      (__NR_Linux + 179)
-#define __NR_chown              (__NR_Linux + 180)
-#define __NR_setsockopt         (__NR_Linux + 181)
-#define __NR_getsockopt         (__NR_Linux + 182)
-#define __NR_sendmsg            (__NR_Linux + 183)
-#define __NR_recvmsg            (__NR_Linux + 184)
-#define __NR_semop              (__NR_Linux + 185)
-#define __NR_semget             (__NR_Linux + 186)
-#define __NR_semctl             (__NR_Linux + 187)
-#define __NR_msgsnd             (__NR_Linux + 188)
-#define __NR_msgrcv             (__NR_Linux + 189)
-#define __NR_msgget             (__NR_Linux + 190)
-#define __NR_msgctl             (__NR_Linux + 191)
-#define __NR_shmat              (__NR_Linux + 192)
-#define __NR_shmdt              (__NR_Linux + 193)
-#define __NR_shmget             (__NR_Linux + 194)
-#define __NR_shmctl             (__NR_Linux + 195)
-#define __NR_getpmsg            (__NR_Linux + 196) /* not used */
-#define __NR_putpmsg            (__NR_Linux + 197) /* not used */
-#define __NR_lstat64            (__NR_Linux + 198)
-#define __NR_truncate64         (__NR_Linux + 199)
-#define __NR_ftruncate64        (__NR_Linux + 200)
-#define __NR_getdents64         (__NR_Linux + 201)
-#define __NR_fcntl64            (__NR_Linux + 202)
-#define __NR_attrctl            (__NR_Linux + 203) /* not used */
-#define __NR_acl_get            (__NR_Linux + 204) /* not used */
-#define __NR_acl_set            (__NR_Linux + 205) /* not used */
-#define __NR_gettid             (__NR_Linux + 206)
-#define __NR_readahead          (__NR_Linux + 207)
-#define __NR_tkill              (__NR_Linux + 208)
-#define __NR_sendfile64         (__NR_Linux + 209)
-#define __NR_futex              (__NR_Linux + 210)
-#define __NR_sched_setaffinity  (__NR_Linux + 211)
-#define __NR_sched_getaffinity  (__NR_Linux + 212)
-#define __NR_set_thread_area    (__NR_Linux + 213) /* not used */
-#define __NR_get_thread_area    (__NR_Linux + 214) /* not used */
-#define __NR_io_setup           (__NR_Linux + 215)
-#define __NR_io_destroy         (__NR_Linux + 216)
-#define __NR_io_getevents       (__NR_Linux + 217)
-#define __NR_io_submit          (__NR_Linux + 218)
-#define __NR_io_cancel          (__NR_Linux + 219)
-#define __NR_alloc_hugepages    (__NR_Linux + 220) /* not used */
-#define __NR_free_hugepages     (__NR_Linux + 221) /* not used */
-#define __NR_exit_group         (__NR_Linux + 222)
-#define __NR_lookup_dcookie     (__NR_Linux + 223)
-#define __NR_epoll_create       (__NR_Linux + 224)
-#define __NR_epoll_ctl          (__NR_Linux + 225)
-#define __NR_epoll_wait         (__NR_Linux + 226)
-#define __NR_remap_file_pages   (__NR_Linux + 227)
-#define __NR_semtimedop         (__NR_Linux + 228)
-#define __NR_mq_open            (__NR_Linux + 229)
-#define __NR_mq_unlink          (__NR_Linux + 230)
-#define __NR_mq_timedsend       (__NR_Linux + 231)
-#define __NR_mq_timedreceive    (__NR_Linux + 232)
-#define __NR_mq_notify          (__NR_Linux + 233)
-#define __NR_mq_getsetattr      (__NR_Linux + 234)
-#define __NR_waitid		(__NR_Linux + 235)
-#define __NR_fadvise64_64	(__NR_Linux + 236)
-#define __NR_set_tid_address	(__NR_Linux + 237)
-#define __NR_setxattr		(__NR_Linux + 238)
-#define __NR_lsetxattr		(__NR_Linux + 239)
-#define __NR_fsetxattr		(__NR_Linux + 240)
-#define __NR_getxattr		(__NR_Linux + 241)
-#define __NR_lgetxattr		(__NR_Linux + 242)
-#define __NR_fgetxattr		(__NR_Linux + 243)
-#define __NR_listxattr		(__NR_Linux + 244)
-#define __NR_llistxattr		(__NR_Linux + 245)
-#define __NR_flistxattr		(__NR_Linux + 246)
-#define __NR_removexattr	(__NR_Linux + 247)
-#define __NR_lremovexattr	(__NR_Linux + 248)
-#define __NR_fremovexattr	(__NR_Linux + 249)
-#define __NR_timer_create	(__NR_Linux + 250)
-#define __NR_timer_settime	(__NR_Linux + 251)
-#define __NR_timer_gettime	(__NR_Linux + 252)
-#define __NR_timer_getoverrun	(__NR_Linux + 253)
-#define __NR_timer_delete	(__NR_Linux + 254)
-#define __NR_clock_settime	(__NR_Linux + 255)
-#define __NR_clock_gettime	(__NR_Linux + 256)
-#define __NR_clock_getres	(__NR_Linux + 257)
-#define __NR_clock_nanosleep	(__NR_Linux + 258)
-#define __NR_tgkill		(__NR_Linux + 259)
-#define __NR_mbind		(__NR_Linux + 260)
-#define __NR_get_mempolicy	(__NR_Linux + 261)
-#define __NR_set_mempolicy	(__NR_Linux + 262)
-#define __NR_vserver		(__NR_Linux + 263) /* not used */
-#define __NR_add_key		(__NR_Linux + 264)
-#define __NR_request_key	(__NR_Linux + 265)
-#define __NR_keyctl		(__NR_Linux + 266)
-#define __NR_ioprio_set		(__NR_Linux + 267)
-#define __NR_ioprio_get		(__NR_Linux + 268)
-#define __NR_inotify_init	(__NR_Linux + 269)
-#define __NR_inotify_add_watch	(__NR_Linux + 270)
-#define __NR_inotify_rm_watch	(__NR_Linux + 271)
-#define __NR_migrate_pages	(__NR_Linux + 272)
-#define __NR_pselect6		(__NR_Linux + 273)
-#define __NR_ppoll		(__NR_Linux + 274)
-#define __NR_openat		(__NR_Linux + 275)
-#define __NR_mkdirat		(__NR_Linux + 276)
-#define __NR_mknodat		(__NR_Linux + 277)
-#define __NR_fchownat		(__NR_Linux + 278)
-#define __NR_futimesat		(__NR_Linux + 279)
-#define __NR_fstatat64		(__NR_Linux + 280)
-#define __NR_unlinkat		(__NR_Linux + 281)
-#define __NR_renameat		(__NR_Linux + 282)
-#define __NR_linkat		(__NR_Linux + 283)
-#define __NR_symlinkat		(__NR_Linux + 284)
-#define __NR_readlinkat		(__NR_Linux + 285)
-#define __NR_fchmodat		(__NR_Linux + 286)
-#define __NR_faccessat		(__NR_Linux + 287)
-#define __NR_unshare		(__NR_Linux + 288)
-#define __NR_set_robust_list	(__NR_Linux + 289)
-#define __NR_get_robust_list	(__NR_Linux + 290)
-#define __NR_splice		(__NR_Linux + 291)
-#define __NR_sync_file_range	(__NR_Linux + 292)
-#define __NR_tee		(__NR_Linux + 293)
-#define __NR_vmsplice		(__NR_Linux + 294)
-#define __NR_move_pages		(__NR_Linux + 295)
-#define __NR_getcpu		(__NR_Linux + 296)
-#define __NR_epoll_pwait	(__NR_Linux + 297)
-#define __NR_statfs64		(__NR_Linux + 298)
-#define __NR_fstatfs64		(__NR_Linux + 299)
-#define __NR_kexec_load		(__NR_Linux + 300)
-#define __NR_utimensat		(__NR_Linux + 301)
-#define __NR_signalfd		(__NR_Linux + 302)
-#define __NR_timerfd		(__NR_Linux + 303) /* not used */
-#define __NR_eventfd		(__NR_Linux + 304)
-#define __NR_fallocate		(__NR_Linux + 305)
-#define __NR_timerfd_create	(__NR_Linux + 306)
-#define __NR_timerfd_settime	(__NR_Linux + 307)
-#define __NR_timerfd_gettime	(__NR_Linux + 308)
-#define __NR_signalfd4		(__NR_Linux + 309)
-#define __NR_eventfd2		(__NR_Linux + 310)
-#define __NR_epoll_create1	(__NR_Linux + 311)
-#define __NR_dup3		(__NR_Linux + 312)
-#define __NR_pipe2		(__NR_Linux + 313)
-#define __NR_inotify_init1	(__NR_Linux + 314)
-#define __NR_preadv		(__NR_Linux + 315)
-#define __NR_pwritev		(__NR_Linux + 316)
-#define __NR_rt_tgsigqueueinfo	(__NR_Linux + 317)
-#define __NR_perf_event_open	(__NR_Linux + 318)
-#define __NR_recvmmsg		(__NR_Linux + 319)
-#define __NR_accept4		(__NR_Linux + 320)
-#define __NR_prlimit64		(__NR_Linux + 321)
-#define __NR_fanotify_init	(__NR_Linux + 322)
-#define __NR_fanotify_mark	(__NR_Linux + 323)
-#define __NR_clock_adjtime	(__NR_Linux + 324)
-#define __NR_name_to_handle_at	(__NR_Linux + 325)
-#define __NR_open_by_handle_at	(__NR_Linux + 326)
-#define __NR_syncfs		(__NR_Linux + 327)
-#define __NR_setns		(__NR_Linux + 328)
-#define __NR_sendmmsg		(__NR_Linux + 329)
-#define __NR_process_vm_readv	(__NR_Linux + 330)
-#define __NR_process_vm_writev	(__NR_Linux + 331)
-#define __NR_kcmp		(__NR_Linux + 332)
-#define __NR_finit_module	(__NR_Linux + 333)
-#define __NR_sched_setattr	(__NR_Linux + 334)
-#define __NR_sched_getattr	(__NR_Linux + 335)
-#define __NR_utimes		(__NR_Linux + 336)
-#define __NR_renameat2		(__NR_Linux + 337)
-#define __NR_seccomp		(__NR_Linux + 338)
-#define __NR_getrandom		(__NR_Linux + 339)
-#define __NR_memfd_create	(__NR_Linux + 340)
-#define __NR_bpf		(__NR_Linux + 341)
-#define __NR_execveat		(__NR_Linux + 342)
-#define __NR_membarrier		(__NR_Linux + 343)
-#define __NR_userfaultfd	(__NR_Linux + 344)
-#define __NR_mlock2		(__NR_Linux + 345)
-#define __NR_copy_file_range	(__NR_Linux + 346)
-#define __NR_preadv2		(__NR_Linux + 347)
-#define __NR_pwritev2		(__NR_Linux + 348)
-#define __NR_statx		(__NR_Linux + 349)
-#define __NR_io_pgetevents	(__NR_Linux + 350)
-
-#ifdef __KERNEL__
-#define __NR_syscalls           351
+#define __NR_Linux           0
+#ifdef CONFIG_64BIT
+#include <asm/unistd_64.h>
+#else
+#include <asm/unistd_32.h>
 #endif
 
-#define __NR_Linux_syscalls     __NR_syscalls
+#define __NR_Linux_syscalls  __NR_syscalls
 
-#define LINUX_GATEWAY_ADDR      0x100
+#define LINUX_GATEWAY_ADDR   0x100
 
 #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f453997..2523b83 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -923,18 +923,10 @@ ENTRY(lws_table)
 END(lws_table)
 	/* End of lws table */
 
-	.align 8
-ENTRY(sys_call_table)
-	.export sys_call_table,data
-#include "syscall_table.S"
-END(sys_call_table)
-
+#include "syscall_table_32.S"
 #ifdef CONFIG_64BIT
-	.align 8
-ENTRY(sys_call_table64)
 #define SYSCALL_TABLE_64BIT
-#include "syscall_table.S"
-END(sys_call_table64)
+#include "syscall_table_64.S"
 #endif
 
 	/*
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
deleted file mode 100644
index fe3f2a4..0000000
--- a/arch/parisc/kernel/syscall_table.S
+++ /dev/null
@@ -1,459 +0,0 @@
-/*    System Call Table
- *
- *    Copyright (C) 1999-2004 Matthew Wilcox <willy at parisc-linux.org>
- *    Copyright (C) 2000-2001 John Marvin <jsm at parisc-linux.org>
- *    Copyright (C) 2000 Alan Modra <amodra at parisc-linux.org>
- *    Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
- *    Copyright (C) 2000 Philipp Rumpf <prumpf with tux.org>
- *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
- *    Copyright (C) 2000 David Huggins-Daines <dhd with pobox.org>
- *    Copyright (C) 2000 Grant Grundler <grundler at parisc-linux.org>
- *    Copyright (C) 2001 Richard Hirst <rhirst with parisc-linux.org>
- *    Copyright (C) 2001-2002 Ryan Bradetich <rbrad at parisc-linux.org>
- *    Copyright (C) 2001-2007 Helge Deller <deller at parisc-linux.org>
- *    Copyright (C) 2000-2001 Thomas Bogendoerfer <tsbogend at parisc-linux.org>
- *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
- *    Copyright (C) 2005-2006 Kyle McMartin <kyle at parisc-linux.org>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#if defined(CONFIG_64BIT) && !defined(SYSCALL_TABLE_64BIT)
-/* Use ENTRY_SAME for 32-bit syscalls which are the same on wide and
- * narrow palinux.  Use ENTRY_DIFF for those where a 32-bit specific
- * implementation is required on wide palinux.  Use ENTRY_COMP where
- * the compatibility layer has a useful 32-bit implementation.
- */
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys32_##_name_
-#define ENTRY_UHOH(_name_) .dword sys32_##unimplemented
-#define ENTRY_OURS(_name_) .dword parisc_##_name_
-#define ENTRY_COMP(_name_) .dword compat_sys_##_name_
-#elif defined(CONFIG_64BIT) && defined(SYSCALL_TABLE_64BIT)
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys_##_name_
-#define ENTRY_UHOH(_name_) .dword sys_##_name_
-#define ENTRY_OURS(_name_) .dword sys_##_name_
-#define ENTRY_COMP(_name_) .dword sys_##_name_
-#else
-#define ENTRY_SAME(_name_) .word sys_##_name_
-#define ENTRY_DIFF(_name_) .word sys_##_name_
-#define ENTRY_UHOH(_name_) .word sys_##_name_
-#define ENTRY_OURS(_name_) .word parisc_##_name_
-#define ENTRY_COMP(_name_) .word sys_##_name_
-#endif
-
-90:	ENTRY_SAME(restart_syscall)	/* 0 */
-91:	ENTRY_SAME(exit)
-	ENTRY_SAME(fork_wrapper)
-	ENTRY_SAME(read)
-	ENTRY_SAME(write)
-	ENTRY_COMP(open)		/* 5 */
-	ENTRY_SAME(close)
-	ENTRY_SAME(waitpid)
-	ENTRY_SAME(creat)
-	ENTRY_SAME(link)
-	ENTRY_SAME(unlink)		/* 10 */
-	ENTRY_COMP(execve)
-	ENTRY_SAME(chdir)
-	/* See comments in kernel/time.c!!! Maybe we don't need this? */
-	ENTRY_COMP(time)
-	ENTRY_SAME(mknod)
-	ENTRY_SAME(chmod)		/* 15 */
-	ENTRY_SAME(lchown)
-	ENTRY_SAME(socket)
-	/* struct stat is MAYBE identical wide and narrow ?? */
-	ENTRY_COMP(newstat)
-	ENTRY_COMP(lseek)
-	ENTRY_SAME(getpid)		/* 20 */
-	/* the 'void * data' parameter may need re-packing in wide */
-	ENTRY_COMP(mount)
-	/* concerned about struct sockaddr in wide/narrow */
-	/* ---> I think sockaddr is OK unless the compiler packs the struct */
-	/*      differently to align the char array */
-	ENTRY_SAME(bind)
-	ENTRY_SAME(setuid)
-	ENTRY_SAME(getuid)
-	ENTRY_COMP(stime)		/* 25 */
-	ENTRY_COMP(ptrace)
-	ENTRY_SAME(alarm)
-	/* see stat comment */
-	ENTRY_COMP(newfstat)
-	ENTRY_SAME(pause)
-	/* struct utimbuf uses time_t which might vary */
-	ENTRY_COMP(utime)		/* 30 */
-	/* struct sockaddr... */
-	ENTRY_SAME(connect)
-	ENTRY_SAME(listen)
-	ENTRY_SAME(access)
-	ENTRY_SAME(nice)
-	/* struct sockaddr... */
-	ENTRY_SAME(accept)		/* 35 */
-	ENTRY_SAME(sync)
-	ENTRY_SAME(kill)
-	ENTRY_SAME(rename)
-	ENTRY_SAME(mkdir)
-	ENTRY_SAME(rmdir)		/* 40 */
-	ENTRY_SAME(dup)
-	ENTRY_SAME(pipe)
-	ENTRY_COMP(times)
-	/* struct sockaddr... */
-	ENTRY_SAME(getsockname)
-	/* it seems possible brk() could return a >4G pointer... */
-	ENTRY_SAME(brk)			/* 45 */
-	ENTRY_SAME(setgid)
-	ENTRY_SAME(getgid)
-	ENTRY_SAME(signal)
-	ENTRY_SAME(geteuid)
-	ENTRY_SAME(getegid)		/* 50 */
-	ENTRY_SAME(acct)
-	ENTRY_SAME(umount)
-	/* struct sockaddr... */
-	ENTRY_SAME(getpeername)
-	ENTRY_COMP(ioctl)
-	ENTRY_COMP(fcntl)		/* 55 */
-	ENTRY_SAME(socketpair)
-	ENTRY_SAME(setpgid)
-	ENTRY_SAME(send)
-	ENTRY_SAME(newuname)
-	ENTRY_SAME(umask)		/* 60 */
-	ENTRY_SAME(chroot)
-	ENTRY_COMP(ustat)
-	ENTRY_SAME(dup2)
-	ENTRY_SAME(getppid)
-	ENTRY_SAME(getpgrp)		/* 65 */
-	ENTRY_SAME(setsid)
-	ENTRY_SAME(pivot_root)
-	/* I don't like this */
-	ENTRY_UHOH(sgetmask)
-	ENTRY_UHOH(ssetmask)
-	ENTRY_SAME(setreuid)		/* 70 */
-	ENTRY_SAME(setregid)
-	ENTRY_SAME(mincore)
-	ENTRY_COMP(sigpending)
-	ENTRY_SAME(sethostname)
-	/* Following 3 have linux-common-code structs containing longs -( */
-	ENTRY_COMP(setrlimit)		/* 75 */
-	ENTRY_COMP(getrlimit)
-	ENTRY_COMP(getrusage)
-	/* struct timeval and timezone are maybe?? consistent wide and narrow */
-	ENTRY_COMP(gettimeofday)
-	ENTRY_COMP(settimeofday)
-	ENTRY_SAME(getgroups)		/* 80 */
-	ENTRY_SAME(setgroups)
-	/* struct socketaddr... */
-	ENTRY_SAME(sendto)
-	ENTRY_SAME(symlink)
-	/* see stat comment */
-	ENTRY_COMP(newlstat)
-	ENTRY_SAME(readlink)		/* 85 */
-	ENTRY_SAME(ni_syscall)	/* was uselib */
-	ENTRY_SAME(swapon)
-	ENTRY_SAME(reboot)
-	ENTRY_SAME(mmap2)
-	ENTRY_SAME(mmap)		/* 90 */
-	ENTRY_SAME(munmap)
-	ENTRY_COMP(truncate)
-	ENTRY_COMP(ftruncate)
-	ENTRY_SAME(fchmod)
-	ENTRY_SAME(fchown)		/* 95 */
-	ENTRY_SAME(getpriority)
-	ENTRY_SAME(setpriority)
-	ENTRY_SAME(recv)
-	ENTRY_COMP(statfs)
-	ENTRY_COMP(fstatfs)		/* 100 */
-	ENTRY_SAME(stat64)
-	ENTRY_SAME(ni_syscall)	/* was socketcall */
-	ENTRY_SAME(syslog)
-	/* even though manpage says struct timeval contains longs, ours has
-	 * time_t and suseconds_t -- both of which are safe wide/narrow */
-	ENTRY_COMP(setitimer)
-	ENTRY_COMP(getitimer)		/* 105 */
-	ENTRY_SAME(capget)
-	ENTRY_SAME(capset)
-	ENTRY_OURS(pread64)
-	ENTRY_OURS(pwrite64)
-	ENTRY_SAME(getcwd)		/* 110 */
-	ENTRY_SAME(vhangup)
-	ENTRY_SAME(fstat64)
-	ENTRY_SAME(vfork_wrapper)
-	/* struct rusage contains longs... */
-	ENTRY_COMP(wait4)
-	ENTRY_SAME(swapoff)		/* 115 */
-	ENTRY_COMP(sysinfo)
-	ENTRY_SAME(shutdown)
-	ENTRY_SAME(fsync)
-	ENTRY_SAME(madvise)
-	ENTRY_SAME(clone_wrapper)	/* 120 */
-	ENTRY_SAME(setdomainname)
-	ENTRY_COMP(sendfile)
-	/* struct sockaddr... */
-	ENTRY_SAME(recvfrom)
-	/* struct timex contains longs */
-	ENTRY_COMP(adjtimex)
-	ENTRY_SAME(mprotect)		/* 125 */
-	/* old_sigset_t forced to 32 bits.  Beware glibc sigset_t */
-	ENTRY_COMP(sigprocmask)
-	ENTRY_SAME(ni_syscall)	/* create_module */
-	ENTRY_SAME(init_module)
-	ENTRY_SAME(delete_module)
-	ENTRY_SAME(ni_syscall)		/* 130: get_kernel_syms */
-	/* time_t inside struct dqblk */
-	ENTRY_SAME(quotactl)
-	ENTRY_SAME(getpgid)
-	ENTRY_SAME(fchdir)
-	ENTRY_SAME(bdflush)
-	ENTRY_SAME(sysfs)		/* 135 */
-	ENTRY_OURS(personality)
-	ENTRY_SAME(ni_syscall)	/* for afs_syscall */
-	ENTRY_SAME(setfsuid)
-	ENTRY_SAME(setfsgid)
-	/* I think this might work */
-	ENTRY_SAME(llseek)		/* 140 */
-	ENTRY_COMP(getdents)
-	/* it is POSSIBLE that select will be OK because even though fd_set
-	 * contains longs, the macros and sizes are clever. */
-	ENTRY_COMP(select)
-	ENTRY_SAME(flock)
-	ENTRY_SAME(msync)
-	/* struct iovec contains pointers */
-	ENTRY_COMP(readv)		/* 145 */
-	ENTRY_COMP(writev)
-	ENTRY_SAME(getsid)
-	ENTRY_SAME(fdatasync)
-	/* struct __sysctl_args is a mess */
-	ENTRY_COMP(sysctl)
-	ENTRY_SAME(mlock)		/* 150 */
-	ENTRY_SAME(munlock)
-	ENTRY_SAME(mlockall)
-	ENTRY_SAME(munlockall)
-	/* struct sched_param is ok for now */
-	ENTRY_SAME(sched_setparam)
-	ENTRY_SAME(sched_getparam)	/* 155 */
-	ENTRY_SAME(sched_setscheduler)
-	ENTRY_SAME(sched_getscheduler)
-	ENTRY_SAME(sched_yield)
-	ENTRY_SAME(sched_get_priority_max)
-	ENTRY_SAME(sched_get_priority_min)	/* 160 */
-	ENTRY_COMP(sched_rr_get_interval)
-	ENTRY_COMP(nanosleep)
-	ENTRY_SAME(mremap)
-	ENTRY_SAME(setresuid)
-	ENTRY_SAME(getresuid)		/* 165 */
-	ENTRY_COMP(sigaltstack)
-	ENTRY_SAME(ni_syscall)		/* query_module */
-	ENTRY_SAME(poll)
-	/* structs contain pointers and an in_addr... */
-	ENTRY_SAME(ni_syscall)		/* was nfsservctl */
-	ENTRY_SAME(setresgid)		/* 170 */
-	ENTRY_SAME(getresgid)
-	ENTRY_SAME(prctl)
-	/* signals need a careful review */
-	ENTRY_SAME(rt_sigreturn_wrapper)
-	ENTRY_COMP(rt_sigaction)
-	ENTRY_COMP(rt_sigprocmask)	/* 175 */
-	ENTRY_COMP(rt_sigpending)
-	ENTRY_COMP(rt_sigtimedwait)
-	/* even though the struct siginfo_t is different, it appears like
-	 * all the paths use values which should be same wide and narrow.
-	 * Also the struct is padded to 128 bytes which means we don't have
-	 * to worry about faulting trying to copy in a larger 64-bit
-	 * struct from a 32-bit user-space app.
-	 */
-	ENTRY_COMP(rt_sigqueueinfo)
-	ENTRY_COMP(rt_sigsuspend)
-	ENTRY_SAME(chown)		/* 180 */
-	/* setsockopt() used by iptables: SO_SET_REPLACE/SO_SET_ADD_COUNTERS */
-	ENTRY_COMP(setsockopt)
-	ENTRY_COMP(getsockopt)
-	ENTRY_COMP(sendmsg)
-	ENTRY_COMP(recvmsg)
-	ENTRY_SAME(semop)		/* 185 */
-	ENTRY_SAME(semget)
-	ENTRY_COMP(semctl)
-	ENTRY_COMP(msgsnd)
-	ENTRY_COMP(msgrcv)
-	ENTRY_SAME(msgget)		/* 190 */
-	ENTRY_COMP(msgctl)
-	ENTRY_COMP(shmat)
-	ENTRY_SAME(shmdt)
-	ENTRY_SAME(shmget)
-	ENTRY_COMP(shmctl)		/* 195 */
-	ENTRY_SAME(ni_syscall)		/* streams1 */
-	ENTRY_SAME(ni_syscall)		/* streams2 */
-	ENTRY_SAME(lstat64)
-	ENTRY_OURS(truncate64)
-	ENTRY_OURS(ftruncate64)		/* 200 */
-	ENTRY_SAME(getdents64)
-	ENTRY_COMP(fcntl64)
-	ENTRY_SAME(ni_syscall)	/* attrctl -- dead */
-	ENTRY_SAME(ni_syscall)	/* acl_get -- dead */
-	ENTRY_SAME(ni_syscall)		/* 205 (acl_set -- dead) */
-	ENTRY_SAME(gettid)
-	ENTRY_OURS(readahead)
-	ENTRY_SAME(tkill)
-	ENTRY_COMP(sendfile64)
-	ENTRY_COMP(futex)		/* 210 */
-	ENTRY_COMP(sched_setaffinity)
-	ENTRY_COMP(sched_getaffinity)
-	ENTRY_SAME(ni_syscall)	/* set_thread_area */
-	ENTRY_SAME(ni_syscall)	/* get_thread_area */
-	ENTRY_COMP(io_setup)		/* 215 */
-	ENTRY_SAME(io_destroy)
-	ENTRY_COMP(io_getevents)
-	ENTRY_COMP(io_submit)
-	ENTRY_SAME(io_cancel)
-	ENTRY_SAME(ni_syscall)		/* 220: was alloc_hugepages */
-	ENTRY_SAME(ni_syscall)		/* was free_hugepages */
-	ENTRY_SAME(exit_group)
-	ENTRY_COMP(lookup_dcookie)
-	ENTRY_SAME(epoll_create)
-	ENTRY_SAME(epoll_ctl)		/* 225 */
-	ENTRY_SAME(epoll_wait)
- 	ENTRY_SAME(remap_file_pages)
-	ENTRY_COMP(semtimedop)
-	ENTRY_COMP(mq_open)
-	ENTRY_SAME(mq_unlink)		/* 230 */
-	ENTRY_COMP(mq_timedsend)
-	ENTRY_COMP(mq_timedreceive)
-	ENTRY_COMP(mq_notify)
-	ENTRY_COMP(mq_getsetattr)
-	ENTRY_COMP(waitid)		/* 235 */
-	ENTRY_OURS(fadvise64_64)
-	ENTRY_SAME(set_tid_address)
-	ENTRY_SAME(setxattr)
-	ENTRY_SAME(lsetxattr)
-	ENTRY_SAME(fsetxattr)		/* 240 */
-	ENTRY_SAME(getxattr)
-	ENTRY_SAME(lgetxattr)
-	ENTRY_SAME(fgetxattr)
-	ENTRY_SAME(listxattr)
-	ENTRY_SAME(llistxattr)		/* 245 */
-	ENTRY_SAME(flistxattr)
-	ENTRY_SAME(removexattr)
-	ENTRY_SAME(lremovexattr)
-	ENTRY_SAME(fremovexattr)
-	ENTRY_COMP(timer_create)	/* 250 */
-	ENTRY_COMP(timer_settime)
-	ENTRY_COMP(timer_gettime)
-	ENTRY_SAME(timer_getoverrun)
-	ENTRY_SAME(timer_delete)
-	ENTRY_COMP(clock_settime)	/* 255 */
-	ENTRY_COMP(clock_gettime)
-	ENTRY_COMP(clock_getres)
-	ENTRY_COMP(clock_nanosleep)
-	ENTRY_SAME(tgkill)
-	ENTRY_COMP(mbind)		/* 260 */
-	ENTRY_COMP(get_mempolicy)
-	ENTRY_COMP(set_mempolicy)
-	ENTRY_SAME(ni_syscall)	/* 263: reserved for vserver */
-	ENTRY_SAME(add_key)
-	ENTRY_SAME(request_key)		/* 265 */
-	ENTRY_COMP(keyctl)
-	ENTRY_SAME(ioprio_set)
-	ENTRY_SAME(ioprio_get)
-	ENTRY_SAME(inotify_init)
-	ENTRY_SAME(inotify_add_watch)	/* 270 */
-	ENTRY_SAME(inotify_rm_watch)
-	ENTRY_SAME(migrate_pages)
-	ENTRY_COMP(pselect6)
-	ENTRY_COMP(ppoll)
-	ENTRY_COMP(openat)		/* 275 */
-	ENTRY_SAME(mkdirat)
-	ENTRY_SAME(mknodat)
-	ENTRY_SAME(fchownat)
-	ENTRY_COMP(futimesat)
-	ENTRY_SAME(fstatat64)		/* 280 */
-	ENTRY_SAME(unlinkat)
-	ENTRY_SAME(renameat)
-	ENTRY_SAME(linkat)
-	ENTRY_SAME(symlinkat)
-	ENTRY_SAME(readlinkat)		/* 285 */
-	ENTRY_SAME(fchmodat)
-	ENTRY_SAME(faccessat)
-	ENTRY_SAME(unshare)
-	ENTRY_COMP(set_robust_list)
-	ENTRY_COMP(get_robust_list)	/* 290 */
-	ENTRY_SAME(splice)
-	ENTRY_OURS(sync_file_range)
-	ENTRY_SAME(tee)
-	ENTRY_COMP(vmsplice)
-	ENTRY_COMP(move_pages)		/* 295 */
-	ENTRY_SAME(getcpu)
-	ENTRY_COMP(epoll_pwait)
-	ENTRY_COMP(statfs64)
-	ENTRY_COMP(fstatfs64)
-	ENTRY_COMP(kexec_load)		/* 300 */
-	ENTRY_COMP(utimensat)
-	ENTRY_COMP(signalfd)
-	ENTRY_SAME(ni_syscall)		/* was timerfd */
-	ENTRY_SAME(eventfd)
-	ENTRY_OURS(fallocate)		/* 305 */
-	ENTRY_SAME(timerfd_create)
-	ENTRY_COMP(timerfd_settime)
-	ENTRY_COMP(timerfd_gettime)
-	ENTRY_COMP(signalfd4)
-	ENTRY_SAME(eventfd2)		/* 310 */
-	ENTRY_SAME(epoll_create1)
-	ENTRY_SAME(dup3)
-	ENTRY_SAME(pipe2)
-	ENTRY_SAME(inotify_init1)
-	ENTRY_COMP(preadv)		/* 315 */
-	ENTRY_COMP(pwritev)
-	ENTRY_COMP(rt_tgsigqueueinfo)
-	ENTRY_SAME(perf_event_open)
-	ENTRY_COMP(recvmmsg)
-	ENTRY_SAME(accept4)		/* 320 */
-	ENTRY_SAME(prlimit64)
-	ENTRY_SAME(fanotify_init)
-	ENTRY_DIFF(fanotify_mark)
-	ENTRY_COMP(clock_adjtime)
-	ENTRY_SAME(name_to_handle_at)	/* 325 */
-	ENTRY_COMP(open_by_handle_at)
-	ENTRY_SAME(syncfs)
-	ENTRY_SAME(setns)
-	ENTRY_COMP(sendmmsg)
-	ENTRY_COMP(process_vm_readv)	/* 330 */
-	ENTRY_COMP(process_vm_writev)
-	ENTRY_SAME(kcmp)
-	ENTRY_SAME(finit_module)
-	ENTRY_SAME(sched_setattr)
-	ENTRY_SAME(sched_getattr)	/* 335 */
-	ENTRY_COMP(utimes)
-	ENTRY_SAME(renameat2)
-	ENTRY_SAME(seccomp)
-	ENTRY_SAME(getrandom)
-	ENTRY_SAME(memfd_create)	/* 340 */
-	ENTRY_SAME(bpf)
-	ENTRY_COMP(execveat)
-	ENTRY_SAME(membarrier)
-	ENTRY_SAME(userfaultfd)
-	ENTRY_SAME(mlock2)		/* 345 */
-	ENTRY_SAME(copy_file_range)
-	ENTRY_COMP(preadv2)
-	ENTRY_COMP(pwritev2)
-	ENTRY_SAME(statx)
-	ENTRY_COMP(io_pgetevents)	/* 350 */
-
-
-.ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
-.error "size of syscall table does not fit value of __NR_Linux_syscalls"
-.endif
-
-#undef ENTRY_SAME
-#undef ENTRY_DIFF
-#undef ENTRY_UHOH
-#undef ENTRY_COMP
-#undef ENTRY_OURS
diff --git a/arch/parisc/kernel/syscall_table_32.S b/arch/parisc/kernel/syscall_table_32.S
new file mode 100644
index 0000000..eec2c9a
--- /dev/null
+++ b/arch/parisc/kernel/syscall_table_32.S
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/linkage.h>
+
+	.align 8
+ENTRY(sys_call_table)
+	.export sys_call_table,data
+#if !defined(CONFIG_64BIT)
+#define __SYSCALL(nr, entry, nargs) .word entry
+#include <asm/syscall_table_32.h>
+#endif
+#undef __SYSCALL
+END(sys_call_table)
+
diff --git a/arch/parisc/kernel/syscall_table_64.S b/arch/parisc/kernel/syscall_table_64.S
new file mode 100644
index 0000000..af915688
--- /dev/null
+++ b/arch/parisc/kernel/syscall_table_64.S
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/linkage.h>
+
+	.align 8
+ENTRY(sys_call_table64)
+#if defined(CONFIG_64BIT) && defined(SYSCALL_TABLE_64BIT)
+#define __SYSCALL(nr, entry, nargs) .dword entry
+#include <asm/syscall_table_64.h>
+#endif
+#undef __SYSCALL
+END(sys_call_table64)
+
+	.align 8
+ENTRY(sys_call_tablec32)
+#if defined(CONFIG_64BIT) && !defined(SYSCALL_TABLE_64BIT)
+#define __SYSCALL(nr, entry, nargs) .dword entry
+#include <asm/syscall_table_c32.h>
+#endif
+#undef __SYSCALL
+END(sys_call_tablec32)
-- 
1.9.1



From - Thu Nov 08 21:42:03 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 5/5] parisc: add __IGNORE* entries in asm/unistd.h
Date: Thu, 27 Sep 2018 19:54:27 +0530
Lines: 28
Approved: news@gmane.org
Message-ID: <1538058267-3765-6-git-send-email-firoz.khan@linaro.org>
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Cc: y2038@lists.linaro.org, linux-kernel@vger.kernel.org,
        linux-arch@vger.kernel.org, arnd@arndb.de, deepa.kernel@gmail.com,
        marcin.juszkiewicz@linaro.org, firoz.khan@linaro.org
To: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Philippe Ombredanne <pombredanne@nexb.com>,
        Kate Stewart <kstewart@linuxfoundation.org>
Original-X-From: linux-kernel-owner@vger.kernel.org Thu Sep 27 16:23:23 2018
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Add __IGNORE* entries for nfsservctl, io_pgetevents and rseq
in the file asm/unistd.h as it is correct to keep __IGNORE*
entry in non uapi header asm/unistd.h while uapi/asm/unistd.h
must hold information only useful for user space applications.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/include/asm/unistd.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 93fd9f6..9294e10 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -13,6 +13,9 @@
 #define __IGNORE_pkey_mprotect
 #define __IGNORE_pkey_alloc
 #define __IGNORE_pkey_free
+#define __IGNORE_nfsservctl
+#define __IGNORE_io_pgetevents
+#define __IGNORE_rseq
 
 #ifndef ASM_LINE_SEP
 # define ASM_LINE_SEP ;
-- 
1.9.1



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Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: [PATCH v3 0/7]  Remove errors building drivers/DRIVERNAME
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Special thanks for the feedback from:
- Finn Thain (I fixed the build problem)
- Geert Uytterhoeven (The cross compilers were very useful)
- Rolf Eike Beer (Was unintentional, thanks for the help!)

This Patchset changes some driver's Makefile to allow them building
using the command 'make drivers/DRIVERNAME', if compatible.

The changed drivers would return error if the above command was run
on them, after an x86 allyesconfig.

The main reason of this patchset is to allow building lists of
drivers looking for warnings and errors to be fixed.

I see this change as a new feature, not a bugfix. I understand
the default bahavior may be building with a simple 'make', but I
believe adding this new possibility will not be harmful.

My main objective is to allow developers with low processing power
to do changes in the kernel and look bugs using free services like
GiltabCI, before submitting to community.

If there is any interest helping/using this, I have a prototype in:
https://gitlab.com/LeoBras/linux-next


Leonardo Brás (7):
  drivers: dio: Avoids building driver if CONFIG_DIO is disabled
  drivers: nubus: Avoids building driver if CONFIG_NUBUS is disabled
  drivers: parisc: Avoids building driver if CONFIG_PARISC is disabled
  drivers: zorro: Avoids building proc.o if CONFIG_ZORRO is disabled
  drivers: s390: Avoids building drivers if ARCH is not s390.
  drivers: oprofile: Avoids building driver from direct make command
  drivers: hwtracing: Adds Makefile to enable building from directory.

 drivers/Makefile           | 4 +---
 drivers/dio/Makefile       | 2 +-
 drivers/hwtracing/Makefile | 3 +++
 drivers/nubus/Makefile     | 5 +++--
 drivers/oprofile/Makefile  | 1 +
 drivers/parisc/Makefile    | 2 +-
 drivers/s390/Makefile      | 8 ++++----
 drivers/zorro/Makefile     | 7 ++++---
 8 files changed, 18 insertions(+), 14 deletions(-)
 create mode 100644 drivers/hwtracing/Makefile
 create mode 100644 drivers/oprofile/Makefile

-- 
2.19.0



From - Thu Nov 08 21:42:03 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: [PATCH v3 1/7] drivers: dio: Avoids building driver if CONFIG_DIO is
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To: lkcamp@lists.libreplanetbr.org,
        /tmp/v3-0002-drivers-nubus-Avoids-building-driver-if-CONFIG_NU.patch@windflash,
        /tmp/v3-0003-drivers-parisc-Avoids-building-driver-if-CONFIG_P.patch@windflash,
        /tmp/v3-0004-drivers-zorro-Avoids-building-proc.o-if-CONFIG_ZO.patch@windflash,
        /tmp/v3-0005-drivers-s390-Avoids-building-drivers-if-ARCH-is-n.patch@windflash,
        /tmp/v3-0006-drivers-oprofile-Avoids-building-driver-from-dire.patch@windflash,
        /tmp/v3-0007-drivers-hwtracing-Adds-Makefile-to-enable-buildin.patch@windflash
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Avoids building driver if 'make drivers/dio/' is called and
CONFIG_DIO is disabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/dio/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dio/Makefile b/drivers/dio/Makefile
index ae92d17083f2..8fc80e805b90 100644
--- a/drivers/dio/Makefile
+++ b/drivers/dio/Makefile
@@ -2,4 +2,4 @@
 # Makefile for the linux kernel.
 #
 
-obj-y := dio.o dio-driver.o dio-sysfs.o
+obj-$(CONFIG_DIO) := dio.o dio-driver.o dio-sysfs.o
-- 
2.19.0



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        Robert Richter <rric@kernel.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
        oprofile-list@lists.sf.net, linux-parisc@vger.kernel.org,
        linux-s390@vger.kernel.org
To: lkcamp@lists.libreplanetbr.org
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Avoids building driver if 'make drivers/nubus/' is called and
CONFIG_NUBUS is disabled.
Avoids building proc.o if CONFIG_PROC_FS is enabled but
CONFIG_NUBUS is disabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/nubus/Makefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/nubus/Makefile b/drivers/nubus/Makefile
index 6d063cde39d1..1daa51217e95 100644
--- a/drivers/nubus/Makefile
+++ b/drivers/nubus/Makefile
@@ -2,6 +2,7 @@
 # Makefile for the nubus specific drivers.
 #
 
-obj-y := nubus.o bus.o
+obj-$(CONFIG_NUBUS) := nubus_all.o
+nubus_all-y += bus.o nubus.o
 
-obj-$(CONFIG_PROC_FS) += proc.o
+nubus_all-$(CONFIG_PROC_FS) += proc.o
-- 
2.19.0



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Subject: [PATCH v3 3/7] drivers: parisc: Avoids building driver if
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To: lkcamp@lists.libreplanetbr.org
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Avoids building driver if 'make drivers/parisc/' is called and
CONFIG_PARISC is disabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/parisc/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/Makefile b/drivers/parisc/Makefile
index 3cd5e6cb8478..80049d763aa0 100644
--- a/drivers/parisc/Makefile
+++ b/drivers/parisc/Makefile
@@ -24,5 +24,5 @@ obj-$(CONFIG_EISA)		+= eisa.o eisa_enumerator.o eisa_eeprom.o
 obj-$(CONFIG_SUPERIO)		+= superio.o
 obj-$(CONFIG_CHASSIS_LCD_LED)	+= led.o
 obj-$(CONFIG_PDC_STABLE)	+= pdc_stable.o
-obj-y				+= power.o
+obj-$(CONFIG_PARISC)		+= power.o
 
-- 
2.19.0



From - Thu Nov 08 21:42:03 2018
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Subject: [PATCH v3 4/7] drivers: zorro: Avoids building proc.o if
 CONFIG_ZORRO is disabled
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Avoids building proc.o if 'make drivers/zorro/' is called and
CONFIG_ZORRO is disabled, even if CONFIG_PROC_FS is enabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/zorro/Makefile | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/zorro/Makefile b/drivers/zorro/Makefile
index b360ac4ea846..d580f9f08e0a 100644
--- a/drivers/zorro/Makefile
+++ b/drivers/zorro/Makefile
@@ -3,9 +3,10 @@
 # Makefile for the Zorro bus specific drivers.
 #
 
-obj-$(CONFIG_ZORRO)	+= zorro.o zorro-driver.o zorro-sysfs.o
-obj-$(CONFIG_PROC_FS)	+= proc.o
-obj-$(CONFIG_ZORRO_NAMES) +=  names.o
+obj-$(CONFIG_ZORRO) 		:= zorro_all.o
+zorro_all-y			+= zorro.o zorro-driver.o zorro-sysfs.o
+zorro_all-$(CONFIG_ZORRO_NAMES) += names.o
+zorro_all-$(CONFIG_PROC_FS)	+= proc.o
 
 hostprogs-y 		:= gen-devlist
 
-- 
2.19.0



From - Thu Nov 08 21:42:03 2018
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Subject: [PATCH v3 5/7] drivers: s390: Avoids building drivers if ARCH is not
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        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
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        linux-s390@vger.kernel.org
To: lkcamp@lists.libreplanetbr.org
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Avoids building s390 drivers if 'make drivers/s390/' is called but
ARCH is not s390.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/s390/Makefile | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/s390/Makefile b/drivers/s390/Makefile
index a863b0462b43..0575f02dba45 100644
--- a/drivers/s390/Makefile
+++ b/drivers/s390/Makefile
@@ -3,7 +3,7 @@
 # Makefile for the S/390 specific device drivers
 #
 
-obj-y += cio/ block/ char/ crypto/ net/ scsi/ virtio/
-
-drivers-y += drivers/s390/built-in.a
-
+ifeq ($(ARCH),s390)
+	obj-y += cio/ block/ char/ crypto/ net/ scsi/ virtio/
+	drivers-y += drivers/s390/built-in.a
+endif
-- 
2.19.0



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Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: [PATCH v3 6/7] drivers: oprofile: Avoids building driver from direct
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Creates new Makefile to avoid building driver if
'make drivers/oprofile/' is called directly.

This driver is usually built from arch/$ARCH and seems to have
no meaning building alone.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/oprofile/Makefile | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 drivers/oprofile/Makefile

diff --git a/drivers/oprofile/Makefile b/drivers/oprofile/Makefile
new file mode 100644
index 000000000000..361867ec2338
--- /dev/null
+++ b/drivers/oprofile/Makefile
@@ -0,0 +1 @@
+#Does nothing, since the source is called from arch/$ARCH/ tree.
-- 
2.19.0



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Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: [PATCH v3 7/7] drivers: hwtracing: Adds Makefile to enable building
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Adds Makefile to enable building the driver using
'make drivers/hwtracing/'.
Changes drivers/Makefile to call the new Makefile directly.
It enables user building this driver without building the whole drivers/
subtree.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/Makefile           | 4 +---
 drivers/hwtracing/Makefile | 3 +++
 2 files changed, 4 insertions(+), 3 deletions(-)
 create mode 100644 drivers/hwtracing/Makefile

diff --git a/drivers/Makefile b/drivers/Makefile
index 578f469f72fb..a237be6b602f 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -174,9 +174,7 @@ obj-$(CONFIG_MCB)		+= mcb/
 obj-$(CONFIG_PERF_EVENTS)	+= perf/
 obj-$(CONFIG_RAS)		+= ras/
 obj-$(CONFIG_THUNDERBOLT)	+= thunderbolt/
-obj-$(CONFIG_CORESIGHT)		+= hwtracing/coresight/
-obj-y				+= hwtracing/intel_th/
-obj-$(CONFIG_STM)		+= hwtracing/stm/
+obj-y				+= hwtracing/
 obj-$(CONFIG_ANDROID)		+= android/
 obj-$(CONFIG_NVMEM)		+= nvmem/
 obj-$(CONFIG_FPGA)		+= fpga/
diff --git a/drivers/hwtracing/Makefile b/drivers/hwtracing/Makefile
new file mode 100644
index 000000000000..fe5773caec49
--- /dev/null
+++ b/drivers/hwtracing/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_CORESIGHT)		+= coresight/
+obj-y				+= intel_th/
+obj-$(CONFIG_STM)		+= stm/
-- 
2.19.0



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Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
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Special thanks for the feedback from:
- Finn Thain (I fixed the build problem)
- Geert Uytterhoeven (The cross compilers were very useful)
- Rolf Eike Beer (Was unintentional, thanks for the help!)

This Patchset changes some driver's Makefile to allow them building
using the command 'make drivers/DRIVERNAME', if compatible.

The changed drivers would return error if the above command was run
on them, after an x86 allyesconfig.

The main reason of this patchset is to allow building lists of
drivers looking for warnings and errors to be fixed.

I see this change as a new feature, not a bugfix. I understand
the default bahavior may be building with a simple 'make', but I
believe adding this new possibility will not be harmful.

My main objective is to allow developers with low processing power
to do changes in the kernel and look bugs using free services like
GiltabCI, before submitting to community.

If there is any interest helping/using this, I have a prototype in:
https://gitlab.com/LeoBras/linux-next


Leonardo Brás (7):
  drivers: dio: Avoids building driver if CONFIG_DIO is disabled
  drivers: nubus: Avoids building driver if CONFIG_NUBUS is disabled
  drivers: parisc: Avoids building driver if CONFIG_PARISC is disabled
  drivers: zorro: Avoids building proc.o if CONFIG_ZORRO is disabled
  drivers: s390: Avoids building drivers if ARCH is not s390.
  drivers: oprofile: Avoids building driver from direct make command
  drivers: hwtracing: Adds Makefile to enable building from directory.

 drivers/Makefile           | 4 +---
 drivers/dio/Makefile       | 2 +-
 drivers/hwtracing/Makefile | 3 +++
 drivers/nubus/Makefile     | 5 +++--
 drivers/oprofile/Makefile  | 1 +
 drivers/parisc/Makefile    | 2 +-
 drivers/s390/Makefile      | 8 ++++----
 drivers/zorro/Makefile     | 7 ++++---
 8 files changed, 18 insertions(+), 14 deletions(-)
 create mode 100644 drivers/hwtracing/Makefile
 create mode 100644 drivers/oprofile/Makefile

-- 
2.19.0



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Avoids building driver if 'make drivers/dio/' is called and
CONFIG_DIO is disabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/dio/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dio/Makefile b/drivers/dio/Makefile
index ae92d17083f2..8fc80e805b90 100644
--- a/drivers/dio/Makefile
+++ b/drivers/dio/Makefile
@@ -2,4 +2,4 @@
 # Makefile for the linux kernel.
 #
 
-obj-y := dio.o dio-driver.o dio-sysfs.o
+obj-$(CONFIG_DIO) := dio.o dio-driver.o dio-sysfs.o
-- 
2.19.0



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Avoids building driver if 'make drivers/nubus/' is called and
CONFIG_NUBUS is disabled.
Avoids building proc.o if CONFIG_PROC_FS is enabled but
CONFIG_NUBUS is disabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/nubus/Makefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/nubus/Makefile b/drivers/nubus/Makefile
index 6d063cde39d1..1daa51217e95 100644
--- a/drivers/nubus/Makefile
+++ b/drivers/nubus/Makefile
@@ -2,6 +2,7 @@
 # Makefile for the nubus specific drivers.
 #
 
-obj-y := nubus.o bus.o
+obj-$(CONFIG_NUBUS) := nubus_all.o
+nubus_all-y += bus.o nubus.o
 
-obj-$(CONFIG_PROC_FS) += proc.o
+nubus_all-$(CONFIG_PROC_FS) += proc.o
-- 
2.19.0



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Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: [PATCH v3 3/7] drivers: parisc: Avoids building driver if CONFIG_PARISC is disabled
Date: Thu, 27 Sep 2018 23:08:12 -0300
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Approved: news@gmane.org
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To: lkcamp@lists.libreplanetbr.org
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Avoids building driver if 'make drivers/parisc/' is called and
CONFIG_PARISC is disabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/parisc/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/parisc/Makefile b/drivers/parisc/Makefile
index 3cd5e6cb8478..80049d763aa0 100644
--- a/drivers/parisc/Makefile
+++ b/drivers/parisc/Makefile
@@ -24,5 +24,5 @@ obj-$(CONFIG_EISA)		+= eisa.o eisa_enumerator.o eisa_eeprom.o
 obj-$(CONFIG_SUPERIO)		+= superio.o
 obj-$(CONFIG_CHASSIS_LCD_LED)	+= led.o
 obj-$(CONFIG_PDC_STABLE)	+= pdc_stable.o
-obj-y				+= power.o
+obj-$(CONFIG_PARISC)		+= power.o
 
-- 
2.19.0



From - Thu Nov 08 21:42:04 2018
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From: =?UTF-8?q?Leonardo=20Br=C3=A1s?= <leobras.c@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: [PATCH v3 4/7] drivers: zorro: Avoids building proc.o if CONFIG_ZORRO is disabled
Date: Thu, 27 Sep 2018 23:08:13 -0300
Lines: 30
Approved: news@gmane.org
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To: lkcamp@lists.libreplanetbr.org
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Avoids building proc.o if 'make drivers/zorro/' is called and
CONFIG_ZORRO is disabled, even if CONFIG_PROC_FS is enabled.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/zorro/Makefile | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/zorro/Makefile b/drivers/zorro/Makefile
index b360ac4ea846..d580f9f08e0a 100644
--- a/drivers/zorro/Makefile
+++ b/drivers/zorro/Makefile
@@ -3,9 +3,10 @@
 # Makefile for the Zorro bus specific drivers.
 #
 
-obj-$(CONFIG_ZORRO)	+= zorro.o zorro-driver.o zorro-sysfs.o
-obj-$(CONFIG_PROC_FS)	+= proc.o
-obj-$(CONFIG_ZORRO_NAMES) +=  names.o
+obj-$(CONFIG_ZORRO) 		:= zorro_all.o
+zorro_all-y			+= zorro.o zorro-driver.o zorro-sysfs.o
+zorro_all-$(CONFIG_ZORRO_NAMES) += names.o
+zorro_all-$(CONFIG_PROC_FS)	+= proc.o
 
 hostprogs-y 		:= gen-devlist
 
-- 
2.19.0



From - Thu Nov 08 21:42:04 2018
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From: =?UTF-8?q?Leonardo=20Br=C3=A1s?= <leobras.c@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: [PATCH v3 5/7] drivers: s390: Avoids building drivers if ARCH is not s390.
Date: Thu, 27 Sep 2018 23:08:14 -0300
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Approved: news@gmane.org
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To: lkcamp@lists.libreplanetbr.org
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Avoids building s390 drivers if 'make drivers/s390/' is called but
ARCH is not s390.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/s390/Makefile | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/s390/Makefile b/drivers/s390/Makefile
index a863b0462b43..0575f02dba45 100644
--- a/drivers/s390/Makefile
+++ b/drivers/s390/Makefile
@@ -3,7 +3,7 @@
 # Makefile for the S/390 specific device drivers
 #
 
-obj-y += cio/ block/ char/ crypto/ net/ scsi/ virtio/
-
-drivers-y += drivers/s390/built-in.a
-
+ifeq ($(ARCH),s390)
+	obj-y += cio/ block/ char/ crypto/ net/ scsi/ virtio/
+	drivers-y += drivers/s390/built-in.a
+endif
-- 
2.19.0



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Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
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Creates new Makefile to avoid building driver if
'make drivers/oprofile/' is called directly.

This driver is usually built from arch/$ARCH and seems to have
no meaning building alone.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/oprofile/Makefile | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 drivers/oprofile/Makefile

diff --git a/drivers/oprofile/Makefile b/drivers/oprofile/Makefile
new file mode 100644
index 000000000000..361867ec2338
--- /dev/null
+++ b/drivers/oprofile/Makefile
@@ -0,0 +1 @@
+#Does nothing, since the source is called from arch/$ARCH/ tree.
-- 
2.19.0



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Adds Makefile to enable building the driver using
'make drivers/hwtracing/'.
Changes drivers/Makefile to call the new Makefile directly.
It enables user building this driver without building the whole drivers/
subtree.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/Makefile           | 4 +---
 drivers/hwtracing/Makefile | 3 +++
 2 files changed, 4 insertions(+), 3 deletions(-)
 create mode 100644 drivers/hwtracing/Makefile

diff --git a/drivers/Makefile b/drivers/Makefile
index 578f469f72fb..a237be6b602f 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -174,9 +174,7 @@ obj-$(CONFIG_MCB)		+= mcb/
 obj-$(CONFIG_PERF_EVENTS)	+= perf/
 obj-$(CONFIG_RAS)		+= ras/
 obj-$(CONFIG_THUNDERBOLT)	+= thunderbolt/
-obj-$(CONFIG_CORESIGHT)		+= hwtracing/coresight/
-obj-y				+= hwtracing/intel_th/
-obj-$(CONFIG_STM)		+= hwtracing/stm/
+obj-y				+= hwtracing/
 obj-$(CONFIG_ANDROID)		+= android/
 obj-$(CONFIG_NVMEM)		+= nvmem/
 obj-$(CONFIG_FPGA)		+= fpga/
diff --git a/drivers/hwtracing/Makefile b/drivers/hwtracing/Makefile
new file mode 100644
index 000000000000..fe5773caec49
--- /dev/null
+++ b/drivers/hwtracing/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_CORESIGHT)		+= coresight/
+obj-y				+= intel_th/
+obj-$(CONFIG_STM)		+= stm/
-- 
2.19.0



From - Thu Nov 08 21:42:04 2018
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From: James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: Re: [PATCH v3 3/7] drivers: parisc: Avoids building driver if
 CONFIG_PARISC is disabled
Date: Fri, 28 Sep 2018 09:15:15 +0200
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Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Finn Thain <fthain@telegraphics.com.au>,
        Robert Richter <rric@kernel.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
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On Thu, 2018-09-27 at 23:08 -0300, Leonardo Brás wrote:
> Avoids building driver if 'make drivers/parisc/' is called and
> CONFIG_PARISC is disabled.

Is that really a problem? The drivers/Makefile has this:

obj-$(CONFIG_PARISC)		+= parisc/ 
And you just overrode that by forcing the build.  It's not even clear
we should refuse the build in that case; how would we know you don't
have a legitimate reason for the override? 

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
> ---
>  drivers/parisc/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/parisc/Makefile b/drivers/parisc/Makefile
> index 3cd5e6cb8478..80049d763aa0 100644
> --- a/drivers/parisc/Makefile
> +++ b/drivers/parisc/Makefile
> @@ -24,5 +24,5 @@ obj-$(CONFIG_EISA)		+= eisa.o
> eisa_enumerator.o eisa_eeprom.o
>  obj-$(CONFIG_SUPERIO)		+= superio.o
>  obj-$(CONFIG_CHASSIS_LCD_LED)	+= led.o
>  obj-$(CONFIG_PDC_STABLE)	+= pdc_stable.o
> -obj-y				+= power.o
> +obj-$(CONFIG_PARISC)		+= power.o

If we conclude the use case is legitimate, that's not enough: the two
inner symbols are PARISC only but CONFIG_EISA isn't.

James



From - Thu Nov 08 21:42:04 2018
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v2 2/5] parisc: add __NR_Linux_syscalls macro with __NR_syscalls
Date: Fri, 28 Sep 2018 14:14:26 +0200
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References: <1538058267-3765-1-git-send-email-firoz.khan@linaro.org> <1538058267-3765-3-git-send-email-firoz.khan@linaro.org>
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To: Firoz Khan <firoz.khan@linaro.org>
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On Thu, Sep 27, 2018 at 4:25 PM Firoz Khan <firoz.khan@linaro.org> wrote:
>
> 1. Update __NR_Linux_syscalls in uapi/asm/unistd.h manually
>    by counting the no.of system calls. No need to update
>    __NR_Linux_syscalls until we either add a new system call
>    or delete an existing system call.
>
> 2. We can keep this feature it above mentioned script, that
>    will count the number of syscalls and keep it in a gener-
>    ated file. In this case we don't need to explicitly update
>    __NR_Linux_syscalls in asm/unistd.h file.
>
> The 2nd option will be the recommended one. For that, I moved
> the __NR_Linux_syscalls macro from uapi/asm/unistd.h to asm/
> unistd.h. The macro __NR_syscalls also added for making the
> name convention same across all architecture. While __NR_sys-
> calls isn't strictly part of the uapi, having it as part of
> the generated header to simplifies the implementation. We also
> need to enclose this macro with #ifdef __KERNEL__ to avoid side
> effects.
>
> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> ---
>  arch/parisc/include/uapi/asm/unistd.h | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
> index bb52e12..255c62a 100644
> --- a/arch/parisc/include/uapi/asm/unistd.h
> +++ b/arch/parisc/include/uapi/asm/unistd.h
> @@ -366,7 +366,11 @@
>  #define __NR_statx             (__NR_Linux + 349)
>  #define __NR_io_pgetevents     (__NR_Linux + 350)
>
> -#define __NR_Linux_syscalls    (__NR_io_pgetevents + 1)
> +#ifdef __KERNEL__
> +#define __NR_syscalls           351
> +#endif
> +
> +#define __NR_Linux_syscalls     __NR_syscalls
>

Hmm, now you have a __NR_Linux_syscalls macro that is defined in user
space to a another macro that is not visible there. How about moving
__NR_Linux_syscalls into arch/parisc/include/asm/unistd.h or
replacing its users with __NR_syscalls instead?

       Arnd


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From: Stephen Rothwell <sfr@canb.auug.org.au>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.next
Subject: linux-next: Signed-off-by missing for commit in the parisc-hd tree
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Hi all,

Commit

  f17bbdb5eea2 ("parisc: Remove PTE load and fault check from L2_ptep macro=
")

is missing a Signed-off-by from its committer.

--=20
Cheers,
Stephen Rothwell

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To: Stephen Rothwell <sfr@canb.auug.org.au>,
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Subject: Re: linux-next: Signed-off-by missing for commit in the parisc-hd
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On 01.10.2018 03:04, Stephen Rothwell wrote:
> Commit
>   f17bbdb5eea2 ("parisc: Remove PTE load and fault check from L2_ptep m=
acro")
> is missing a Signed-off-by from its committer.

Fixed now.

Thanks!
Helge


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On 27.09.18 23:08:09, Leonardo Brs wrote:
> This Patchset changes some driver's Makefile to allow them building
> using the command 'make drivers/DRIVERNAME', if compatible.
> 
> The changed drivers would return error if the above command was run
> on them, after an x86 allyesconfig.

I don't see what you are trying to achieve here. Why shouldn't the
command fail if it is not the intended way to call it? There are a
couple of use cases where drivers/ is used to share common code over
different archs and it is not always the intention to build them in
drivers/ directly.

> 
> The main reason of this patchset is to allow building lists of
> drivers looking for warnings and errors to be fixed.

If a list is the intention here, aren't there other ways to create it
other than using drivers/*?

-Robert

> 
> I see this change as a new feature, not a bugfix. I understand
> the default bahavior may be building with a simple 'make', but I
> believe adding this new possibility will not be harmful.
> 
> My main objective is to allow developers with low processing power
> to do changes in the kernel and look bugs using free services like
> GiltabCI, before submitting to community.
> 
> If there is any interest helping/using this, I have a prototype in:
> https://gitlab.com/LeoBras/linux-next


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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v2 3/5] parisc: add system call table generation support
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References: <1538058267-3765-1-git-send-email-firoz.khan@linaro.org> <1538058267-3765-4-git-send-email-firoz.khan@linaro.org>
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To: Firoz Khan <firoz.khan@linaro.org>
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On Thu, Sep 27, 2018 at 4:25 PM Firoz Khan <firoz.khan@linaro.org> wrote:
>
> ---
>  arch/parisc/kernel/syscalls/Makefile       |  55 +++++
>  arch/parisc/kernel/syscalls/syscall_32.tbl | 342 +++++++++++++++++++++++++++++
>  arch/parisc/kernel/syscalls/syscall_64.tbl | 342 +++++++++++++++++++++++++++++
>  arch/parisc/kernel/syscalls/syscallhdr.sh  |  35 +++
>  arch/parisc/kernel/syscalls/syscalltbl.sh  |  42 ++++

I think we absolutely want to share the .tbl files for generating all
five outputs
(32-bit unistd.h, 64-bit unistd.h, 32-bit native syscall-table.S, 64-bit native
syscall-table.S, and 32-bit compat syscall-table.S) so we only
have to modify one file when adding another syscall, and to ensure that
 32/64 are in sync.

      Arnd


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Subject: Re: [PATCH v3 5/7] drivers: s390: Avoids building drivers if ARCH is
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Cc: lkcamp@lists.libreplanetbr.org,
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On Thu, Sep 27, 2018 at 11:08:14PM -0300, Leonardo Brs wrote:
> Avoids building s390 drivers if 'make drivers/s390/' is called but
> ARCH is not s390.
> 
> Signed-off-by: Leonardo Brs <leobras.c@gmail.com>
> ---
>  drivers/s390/Makefile | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/s390/Makefile b/drivers/s390/Makefile
> index a863b0462b43..0575f02dba45 100644
> --- a/drivers/s390/Makefile
> +++ b/drivers/s390/Makefile
> @@ -3,7 +3,7 @@
>  # Makefile for the S/390 specific device drivers
>  #
>  
> -obj-y += cio/ block/ char/ crypto/ net/ scsi/ virtio/
> -
> -drivers-y += drivers/s390/built-in.a
> -
> +ifeq ($(ARCH),s390)
> +	obj-y += cio/ block/ char/ crypto/ net/ scsi/ virtio/
> +	drivers-y += drivers/s390/built-in.a
> +endif

And then somebody wants to build with e.g. "make drivers/s390/cio/" and it
still doesn't work. So _if_ this should be supported then it should work
with all directory levels and all configuration options. Otherwise this is
going to be a never ending story.



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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v2 2/5] parisc: add __NR_Linux_syscalls macro with __NR_syscalls
Date: Mon, 1 Oct 2018 19:36:44 +0530
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Cc: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
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To: Arnd Bergmann <arnd@arndb.de>
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Xref: news.gmane.org gmane.linux.kernel:2886692 gmane.linux.ports.parisc:29062 gmane.linux.kernel.year-2038:3437 gmane.linux.kernel.cross-arch:47165
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Hi Arnd,

On Fri, 28 Sep 2018 at 17:44, Arnd Bergmann <arnd@arndb.de> wrote:
>
> On Thu, Sep 27, 2018 at 4:25 PM Firoz Khan <firoz.khan@linaro.org> wrote:
> >
> > 1. Update __NR_Linux_syscalls in uapi/asm/unistd.h manually
> >    by counting the no.of system calls. No need to update
> >    __NR_Linux_syscalls until we either add a new system call
> >    or delete an existing system call.
> >
> > 2. We can keep this feature it above mentioned script, that
> >    will count the number of syscalls and keep it in a gener-
> >    ated file. In this case we don't need to explicitly update
> >    __NR_Linux_syscalls in asm/unistd.h file.
> >
> > The 2nd option will be the recommended one. For that, I moved
> > the __NR_Linux_syscalls macro from uapi/asm/unistd.h to asm/
> > unistd.h. The macro __NR_syscalls also added for making the
> > name convention same across all architecture. While __NR_sys-
> > calls isn't strictly part of the uapi, having it as part of
> > the generated header to simplifies the implementation. We also
> > need to enclose this macro with #ifdef __KERNEL__ to avoid side
> > effects.
> >
> > Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> > ---
> >  arch/parisc/include/uapi/asm/unistd.h | 6 +++++-
> >  1 file changed, 5 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
> > index bb52e12..255c62a 100644
> > --- a/arch/parisc/include/uapi/asm/unistd.h
> > +++ b/arch/parisc/include/uapi/asm/unistd.h
> > @@ -366,7 +366,11 @@
> >  #define __NR_statx             (__NR_Linux + 349)
> >  #define __NR_io_pgetevents     (__NR_Linux + 350)
> >
> > -#define __NR_Linux_syscalls    (__NR_io_pgetevents + 1)
> > +#ifdef __KERNEL__
> > +#define __NR_syscalls           351
> > +#endif
> > +
> > +#define __NR_Linux_syscalls     __NR_syscalls
> >
>
> Hmm, now you have a __NR_Linux_syscalls macro that is defined in user
> space to a another macro that is not visible there. How about moving
> __NR_Linux_syscalls into arch/parisc/include/asm/unistd.h or
> replacing its users with __NR_syscalls instead?

Something went wrong when I created this patch series. Yes, this must be
reside in asm/unistd.h instead of uapi/asm/unistd.h. I would update this
change asap.

I would appreciate if some can perform boot test on actual platform.
Hopefully the above change doesn't make any problem.

Thanks
Firoz

>
>        Arnd


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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v2 3/5] parisc: add system call table generation support
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To: Arnd Bergmann <arnd@arndb.de>
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Hi Arnd,

On Mon, 1 Oct 2018 at 17:06, Arnd Bergmann <arnd@arndb.de> wrote:
>
> On Thu, Sep 27, 2018 at 4:25 PM Firoz Khan <firoz.khan@linaro.org> wrote:
> >
> > ---
> >  arch/parisc/kernel/syscalls/Makefile       |  55 +++++
> >  arch/parisc/kernel/syscalls/syscall_32.tbl | 342 +++++++++++++++++++++++++++++
> >  arch/parisc/kernel/syscalls/syscall_64.tbl | 342 +++++++++++++++++++++++++++++
> >  arch/parisc/kernel/syscalls/syscallhdr.sh  |  35 +++
> >  arch/parisc/kernel/syscalls/syscalltbl.sh  |  42 ++++
>
> I think we absolutely want to share the .tbl files for generating all
> five outputs
> (32-bit unistd.h, 64-bit unistd.h, 32-bit native syscall-table.S, 64-bit native
> syscall-table.S, and 32-bit compat syscall-table.S) so we only
> have to modify one file when adding another syscall, and to ensure that
>  32/64 are in sync.

For this design, I need to rework. I'll update you shortly

- Firoz
>
>       Arnd


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From: Helge Deller <deller@gmx.de>
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Subject: [GIT PULL] parisc fixes for kernel v4.19
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Hi Greg,

please pull a last set of fixes for the parisc architecture for kernel 4.19 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.19-3

The major change is for parisc64 to use a 64-bit suseconds_t type to
match what glibc expects for 64-bit userspace. It's an ABI change, but
since we don't have a 64-bit userspace on parisc yet, it won't introduce
a breakage.

Other than that we simply drop unused code and outdated gcc version
checks.

Thanks,
Helge

----------------------------------------------------------------
Arnd Bergmann (1):
      parisc64: change __kernel_suseconds_t to match glibc

Christoph Hellwig (1):
      parisc: remove the dead ccio-rm-dma driver

Helge Deller (1):
      parisc: Use PARISC_ITLB_TRAP constant in entry.S

Masahiro Yamada (1):
      parisc: remove check for minimum required GCC version

 arch/parisc/Makefile                       |   9 --
 arch/parisc/include/uapi/asm/posix_types.h |   3 -
 arch/parisc/kernel/entry.S                 |   2 +-
 drivers/parisc/Makefile                    |   3 -
 drivers/parisc/ccio-rm-dma.c               | 202 -----------------------------
 5 files changed, 1 insertion(+), 218 deletions(-)
 delete mode 100644 drivers/parisc/ccio-rm-dma.c


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On Tue, Oct 02, 2018 at 11:02:13PM +0200, Helge Deller wrote:
> Hi Greg,
> 
> please pull a last set of fixes for the parisc architecture for kernel 4.19 from:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.19-3
> 
> The major change is for parisc64 to use a 64-bit suseconds_t type to
> match what glibc expects for 64-bit userspace. It's an ABI change, but
> since we don't have a 64-bit userspace on parisc yet, it won't introduce
> a breakage.

Isn't it a bit "late" in the release cycle for such a change?  Why not
do this on the -rc1 release?

> Other than that we simply drop unused code and outdated gcc version
> checks.

Why are those needed now?

thanks,

greg k-h


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Hi Greg,

On 02.10.2018 23:16, Greg Kroah-Hartman wrote:
> On Tue, Oct 02, 2018 at 11:02:13PM +0200, Helge Deller wrote:
>> please pull a last set of fixes for the parisc architecture for kernel 4.19 from:
>>
>>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.19-3
>>
>> The major change is for parisc64 to use a 64-bit suseconds_t type to
>> match what glibc expects for 64-bit userspace. It's an ABI change, but
>> since we don't have a 64-bit userspace on parisc yet, it won't introduce
>> a breakage.
> 
> Isn't it a bit "late" in the release cycle for such a change?  Why not
> do this on the -rc1 release?

I've tagged it for stable release.
So, it can go in now, or just wait until -rc1 and go in later.
 
>> Other than that we simply drop unused code and outdated gcc version
>> checks.
> 
> Why are those needed now?

The patch in there which is by me changes one line simply cleans up a patch which
went in during the 4.19 merge cycle. So it would be nice to have it
added now before v4.19 gets released.
The other two patches are trivial and just remove dead code.
I rate them all as non-critical, but nice-to-have-in-v4.19. 

If you disagree I'm absolutely fine to wait with all of them 
for the next merge window.

Thanks!
Helge


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On Tue, Oct 02, 2018 at 11:46:11PM +0200, Helge Deller wrote:
> Hi Greg,
> 
> On 02.10.2018 23:16, Greg Kroah-Hartman wrote:
> > On Tue, Oct 02, 2018 at 11:02:13PM +0200, Helge Deller wrote:
> >> please pull a last set of fixes for the parisc architecture for kernel 4.19 from:
> >>
> >>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.19-3
> >>
> >> The major change is for parisc64 to use a 64-bit suseconds_t type to
> >> match what glibc expects for 64-bit userspace. It's an ABI change, but
> >> since we don't have a 64-bit userspace on parisc yet, it won't introduce
> >> a breakage.
> > 
> > Isn't it a bit "late" in the release cycle for such a change?  Why not
> > do this on the -rc1 release?
> 
> I've tagged it for stable release.
> So, it can go in now, or just wait until -rc1 and go in later.

Why is a major API change a viable stable change?  What bugfix does it
provide?

> >> Other than that we simply drop unused code and outdated gcc version
> >> checks.
> > 
> > Why are those needed now?
> 
> The patch in there which is by me changes one line simply cleans up a patch which
> went in during the 4.19 merge cycle. So it would be nice to have it
> added now before v4.19 gets released.
> The other two patches are trivial and just remove dead code.
> I rate them all as non-critical, but nice-to-have-in-v4.19. 
> 
> If you disagree I'm absolutely fine to wait with all of them 
> for the next merge window.

Normally I only let "bugfixes" into my trees at this point in time.
cleanups always wait for the next -rc1 merge window as that's what it is
there for.  So I'd recommend waiting as well.

I'm more "worried" about the api change listed above.

thanks,

greg k-h


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Xref: news.gmane.org gmane.linux.kernel:2888888 gmane.linux.ports.parisc:29068 gmane.linux.kernel.year-2038:3448 gmane.linux.kernel.cross-arch:47329
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2888888>

On Thu, 27 Sep 2018 at 19:55, Firoz Khan <firoz.khan@linaro.org> wrote:
>
> The system call tables are in different format in all
> architecture and it will be difficult to manually add or
> modify the system calls in the respective files. To make
> it easy by keeping a script and which'll generate the
> header file and syscall table file so this change will
> unify them across all architectures.
>
> The system call table generation script is added in
> syscalls directory which contain the script to generate
> both uapi header file system call table generation file
> and syscall_32/64.tbl file which'll be the input for the
> scripts.
>
> syscall_32/64.tbl contains the list of available system calls
> along with system call number and corresponding entry point.
> Add a new system call in this architecture will be possible
> by adding new entry in the syscall_32/64.tbl file.
>
> Adding a new table entry consisting of:
>         - System call number.
>         - ABI.
>         - System call name.
>         - Entry point name.
>         - Compat entry name, if required.
>
> syscallhdr.sh and syscalltbl.sh will generate uapi header-
> unistd_32/64.h and syscall_table_32/64/c32.h files respect-
> ively. File syscall_table_32/64/c32.h is included by sys-
> call.S - the real system call table. Both .sh files will
> parse the content syscall.tbl to generate the header and
> table files.
>
> ARM, s390 and x86 architecuture does have the similar support.
> I leverage their implementation to come up with a generic
> solution.
>
> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> ---
>  arch/parisc/kernel/syscalls/Makefile       |  55 +++++
>  arch/parisc/kernel/syscalls/syscall_32.tbl | 342 +++++++++++++++++++++++++++++
>  arch/parisc/kernel/syscalls/syscall_64.tbl | 342 +++++++++++++++++++++++++++++
>  arch/parisc/kernel/syscalls/syscallhdr.sh  |  35 +++
>  arch/parisc/kernel/syscalls/syscalltbl.sh  |  42 ++++
>  5 files changed, 816 insertions(+)
>  create mode 100644 arch/parisc/kernel/syscalls/Makefile
>  create mode 100644 arch/parisc/kernel/syscalls/syscall_32.tbl
>  create mode 100644 arch/parisc/kernel/syscalls/syscall_64.tbl
>  create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
>  create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh
>
> diff --git a/arch/parisc/kernel/syscalls/Makefile b/arch/parisc/kernel/syscalls/Makefile
> new file mode 100644
> index 0000000..e8b80ee
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/Makefile
> @@ -0,0 +1,55 @@
> +# SPDX-License-Identifier: GPL-2.0
> +out := arch/$(SRCARCH)/include/generated/asm
> +uapi := arch/$(SRCARCH)/include/generated/uapi/asm
> +
> +_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
> +         $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
> +
> +syscall32 := $(srctree)/$(src)/syscall_32.tbl
> +syscall64 := $(srctree)/$(src)/syscall_64.tbl
> +
> +syshdr := $(srctree)/$(src)/syscallhdr.sh
> +systbl := $(srctree)/$(src)/syscalltbl.sh
> +
> +quiet_cmd_syshdr = SYSHDR  $@
> +      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'  \
> +                  '$(syshdr_abi_$(basetarget))'          \
> +                  '$(syshdr_pfx_$(basetarget))'          \
> +                  '$(syshdr_offset_$(basetarget))'
> +
> +quiet_cmd_systbl = SYSTBL  $@
> +      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'  \
> +                   '$(systbl_abi_$(basetarget))'          \
> +                  '$(systbl_offset_$(basetarget))'
> +
> +syshdr_offset_unistd_32 := __NR_Linux
> +$(uapi)/unistd_32.h: $(syscall32) $(syshdr)
> +       $(call if_changed,syshdr)
> +
> +syshdr_offset_unistd_64 := __NR_Linux
> +$(uapi)/unistd_64.h: $(syscall64) $(syshdr)
> +       $(call if_changed,syshdr)
> +
> +systbl_abi_syscall_table_32 := 32
> +$(out)/syscall_table_32.h: $(syscall32) $(systbl)
> +       $(call if_changed,systbl)
> +
> +systbl_abi_syscall_table_64 := 64
> +$(out)/syscall_table_64.h: $(syscall64) $(systbl)
> +       $(call if_changed,systbl)
> +
> +systbl_abi_syscall_table_c32 := c32
> +$(out)/syscall_table_c32.h: $(syscall32) $(systbl)
> +       $(call if_changed,systbl)
> +
> +uapisyshdr-y                   += unistd_32.h unistd_64.h
> +syshdr-y                       += syscall_table_32.h     \
> +                                   syscall_table_64.h     \
> +                                   syscall_table_c32.h

Appreciate someone can suggest better file name for compat.
In syscall_table_c32.h, c32 looks not good.

Thanks
Firoz

> +
> +targets        += $(uapisyshdr-y) $(syshdr-y)
> +
> +PHONY += all
> +all: $(addprefix $(uapi)/,$(uapisyshdr-y))
> +all: $(addprefix $(out)/,$(syshdr-y))
> +       @:
> diff --git a/arch/parisc/kernel/syscalls/syscall_32.tbl b/arch/parisc/kernel/syscalls/syscall_32.tbl
> new file mode 100644
> index 0000000..9d66e64d
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/syscall_32.tbl
> @@ -0,0 +1,342 @@
> +#
> +# 32-bit system call numbers and entry vectors
> +#
> +# The format is:
> +# <number> <abi> <name> <entry point> <compat entry point>
> +#
> +# The abi is always "common" for this file.
> +#
> +0       common  restart_syscall                 sys_restart_syscall
> +1       common  exit                            sys_exit
> +2       common  fork                            sys_fork_wrapper
> +3       common  read                            sys_read
> +4       common  write                           sys_write
> +5       common  open                            sys_open                        compat_sys_open
> +6       common  close                           sys_close
> +7       common  waitpid                         sys_waitpid
> +8       common  creat                           sys_creat
> +9       common  link                            sys_link
> +10      common  unlink                          sys_unlink
> +11      common  execve                          sys_execve                      compat_sys_execve
> +12      common  chdir                           sys_chdir
> +13      common  time                            sys_time                        compat_sys_time
> +14      common  mknod                           sys_mknod
> +15      common  chmod                           sys_chmod
> +16      common  lchown                          sys_lchown
> +17      common  socket                          sys_socket
> +18      common  stat                            sys_newstat                     compat_sys_newstat
> +19      common  lseek                           sys_lseek                       compat_sys_lseek
> +20      common  getpid                          sys_getpid
> +21      common  mount                           sys_mount                       compat_sys_mount
> +22      common  bind                            sys_bind
> +23      common  setuid                          sys_setuid
> +24      common  getuid                          sys_getuid
> +25      common  stime                           sys_stime                       compat_sys_stime
> +26      common  ptrace                          sys_ptrace                      compat_sys_ptrace
> +27      common  alarm                           sys_alarm
> +28      common  fstat                           sys_newfstat                    compat_sys_newfstat
> +29      common  pause                           sys_pause
> +30      common  utime                           sys_utime                       compat_sys_utime
> +31      common  connect                         sys_connect
> +32      common  listen                          sys_listen
> +33      common  access                          sys_access
> +34      common  nice                            sys_nice
> +35      common  accept                          sys_accept
> +36      common  sync                            sys_sync
> +37      common  kill                            sys_kill
> +38      common  rename                          sys_rename
> +39      common  mkdir                           sys_mkdir
> +40      common  rmdir                           sys_rmdir
> +41      common  dup                             sys_dup
> +42      common  pipe                            sys_pipe
> +43      common  times                           sys_times                       compat_sys_times
> +44      common  getsockname                     sys_getsockname
> +45      common  brk                             sys_brk
> +46      common  setgid                          sys_setgid
> +47      common  getgid                          sys_getgid
> +48      common  signal                          sys_signal
> +49      common  geteuid                         sys_geteuid
> +50      common  getegid                         sys_getegid
> +51      common  acct                            sys_acct
> +52      common  umount2                         sys_umount
> +53      common  getpeername                     sys_getpeername
> +54      common  ioctl                           sys_ioctl                       compat_sys_ioctl
> +55      common  fcntl                           sys_fcntl                       compat_sys_fcntl
> +56      common  socketpair                      sys_socketpair
> +57      common  setpgid                         sys_setpgid
> +58      common  send                            sys_send
> +59      common  uname                           sys_newuname
> +60      common  umask                           sys_umask
> +61      common  chroot                          sys_chroot
> +62      common  ustat                           sys_ustat                       compat_sys_ustat
> +63      common  dup2                            sys_dup2
> +64      common  getppid                         sys_getppid
> +65      common  getpgrp                         sys_getpgrp
> +66      common  setsid                          sys_setsid
> +67      common  pivot_root                      sys_pivot_root
> +68      common  sgetmask                        sys_sgetmask                    sys32_unimplemented
> +69      common  ssetmask                        sys_ssetmask                    sys32_unimplemented
> +70      common  setreuid                        sys_setreuid
> +71      common  setregid                        sys_setregid
> +72      common  mincore                         sys_mincore
> +73      common  sigpending                      sys_sigpending                  compat_sys_sigpending
> +74      common  sethostname                     sys_sethostname
> +75      common  setrlimit                       sys_setrlimit                   compat_sys_setrlimit
> +76      common  getrlimit                       sys_getrlimit                   compat_sys_getrlimit
> +77      common  getrusage                       sys_getrusage                   compat_sys_getrusage
> +78      common  gettimeofday                    sys_gettimeofday                compat_sys_gettimeofday
> +79      common  settimeofday                    sys_settimeofday                compat_sys_settimeofday
> +80      common  getgroups                       sys_getgroups
> +81      common  setgroups                       sys_setgroups
> +82      common  sendto                          sys_sendto
> +83      common  symlink                         sys_symlink
> +84      common  lstat                           sys_newlstat                    compat_sys_newlstat
> +85      common  readlink                        sys_readlink
> +86      common  uselib                          sys_ni_syscall
> +87      common  swapon                          sys_swapon
> +88      common  reboot                          sys_reboot
> +89      common  mmap2                           sys_mmap2
> +90      common  mmap                            sys_mmap
> +91      common  munmap                          sys_munmap
> +92      common  truncate                        sys_truncate                    compat_sys_truncate
> +93      common  ftruncate                       sys_ftruncate                   compat_sys_ftruncate
> +94      common  fchmod                          sys_fchmod
> +95      common  fchown                          sys_fchown
> +96      common  getpriority                     sys_getpriority
> +97      common  setpriority                     sys_setpriority
> +98      common  recv                            sys_recv
> +99      common  statfs                          sys_statfs                      compat_sys_statfs
> +100     common  fstatfs                         sys_fstatfs                     compat_sys_fstatfs
> +101     common  stat64                          sys_stat64
> +103     common  syslog                          sys_syslog
> +104     common  setitimer                       sys_setitimer                   compat_sys_setitimer
> +105     common  getitimer                       sys_getitimer                   compat_sys_getitimer
> +106     common  capget                          sys_capget
> +107     common  capset                          sys_capset
> +108     common  pread64                         sys_pread64                     parisc_pread64
> +109     common  pwrite64                        sys_pwrite64                    parisc_pwrite64
> +110     common  getcwd                          sys_getcwd
> +111     common  vhangup                         sys_vhangup
> +112     common  fstat64                         sys_fstat64
> +113     common  vfork                           sys_vfork_wrapper
> +114     common  wait4                           sys_wait4                       compat_sys_wait4
> +115     common  swapoff                         sys_swapoff
> +116     common  sysinfo                         sys_sysinfo                     compat_sys_sysinfo
> +117     common  shutdown                        sys_shutdown
> +118     common  fsync                           sys_fsync
> +119     common  madvise                         sys_madvise
> +120     common  clone                           sys_clone_wrapper
> +121     common  setdomainname                   sys_setdomainname
> +122     common  sendfile                        sys_sendfile                    compat_sys_sendfile
> +123     common  recvfrom                        sys_recvfrom
> +124     common  adjtimex                        sys_adjtimex                    compat_sys_adjtimex
> +125     common  mprotect                        sys_mprotect
> +126     common  sigprocmask                     sys_sigprocmask                 compat_sys_sigprocmask
> +128     common  init_module                     sys_init_module
> +129     common  delete_module                   sys_delete_module
> +131     common  quotactl                        sys_quotactl
> +132     common  getpgid                         sys_getpgid
> +133     common  fchdir                          sys_fchdir
> +134     common  bdflush                         sys_bdflush
> +135     common  sysfs                           sys_sysfs
> +136     common  personality                     sys_personality                 parisc_personality
> +138     common  setfsuid                        sys_setfsuid
> +139     common  setfsgid                        sys_setfsgid
> +140     common  _llseek                         sys_llseek
> +141     common  getdents                        sys_getdents                    compat_sys_getdents
> +142     common  _newselect                      sys_select                      compat_sys_select
> +143     common  flock                           sys_flock
> +144     common  msync                           sys_msync
> +145     common  readv                           sys_readv                       compat_sys_readv
> +146     common  writev                          sys_writev                      compat_sys_writev
> +147     common  getsid                          sys_getsid
> +148     common  fdatasync                       sys_fdatasync
> +149     common  _sysctl                         sys_sysctl                      compat_sys_sysctl
> +150     common  mlock                           sys_mlock
> +151     common  munlock                         sys_munlock
> +152     common  mlockall                        sys_mlockall
> +153     common  munlockall                      sys_munlockall
> +154     common  sched_setparam                  sys_sched_setparam
> +155     common  sched_getparam                  sys_sched_getparam
> +156     common  sched_setscheduler              sys_sched_setscheduler
> +157     common  sched_getscheduler              sys_sched_getscheduler
> +158     common  sched_yield                     sys_sched_yield
> +159     common  sched_get_priority_max          sys_sched_get_priority_max
> +160     common  sched_get_priority_min          sys_sched_get_priority_min
> +161     common  sched_rr_get_interval           sys_sched_rr_get_interval       compat_sys_sched_rr_get_interval
> +162     common  nanosleep                       sys_nanosleep                   compat_sys_nanosleep
> +163     common  mremap                          sys_mremap
> +164     common  setresuid                       sys_setresuid
> +165     common  getresuid                       sys_getresuid
> +166     common  sigaltstack                     sys_sigaltstack                 compat_sys_sigaltstack
> +168     common  poll                            sys_poll
> +170     common  setresgid                       sys_setresgid
> +171     common  getresgid                       sys_getresgid
> +172     common  prctl                           sys_prctl
> +173     common  rt_sigreturn                    sys_rt_sigreturn
> +174     common  rt_sigaction                    sys_rt_sigaction                compat_sys_rt_sigaction
> +175     common  rt_sigprocmask                  sys_rt_sigprocmask              compat_sys_rt_sigprocmask
> +176     common  rt_sigpending                   sys_rt_sigpending               compat_sys_rt_sigpending
> +177     common  rt_sigtimedwait                 sys_rt_sigtimedwait             compat_sys_rt_sigtimedwait
> +178     common  rt_sigqueueinfo                 sys_rt_sigqueueinfo             compat_sys_rt_sigqueueinfo
> +179     common  rt_sigsuspend                   sys_rt_sigsuspend               compat_sys_rt_sigsuspend
> +180     common  chown                           sys_chown
> +181     common  setsockopt                      sys_setsockopt                  compat_sys_setsockopt
> +182     common  getsockopt                      sys_getsockopt                  compat_sys_getsockopt
> +183     common  sendmsg                         sys_sendmsg                     compat_sys_sendmsg
> +184     common  recvmsg                         sys_recvmsg                     compat_sys_recvmsg
> +185     common  semop                           sys_semop
> +186     common  semget                          sys_semget
> +187     common  semctl                          sys_semctl                      compat_sys_semctl
> +188     common  msgsnd                          sys_msgsnd                      compat_sys_msgsnd
> +189     common  msgrcv                          sys_msgrcv                      compat_sys_msgrcv
> +190     common  msgget                          sys_msgget
> +191     common  msgctl                          sys_msgctl                      compat_sys_msgctl
> +192     common  shmat                           sys_shmat                       compat_sys_shmat
> +193     common  shmdt                           sys_shmdt
> +194     common  shmget                          sys_shmget
> +195     common  shmctl                          sys_shmctl                      compat_sys_shmctl
> +198     common  lstat64                         sys_lstat64
> +199     common  truncate64                      sys_truncate64                  parisc_truncate64
> +200     common  ftruncate64                     sys_ftruncate64                 parisc_ftruncate64
> +201     common  getdents64                      sys_getdents64
> +202     common  fcntl64                         sys_fcntl64                     compat_sys_fcntl64
> +206     common  gettid                          sys_gettid
> +207     common  readahead                       sys_readahead                   parisc_readahead
> +208     common  tkill                           sys_tkill
> +209     common  sendfile64                      sys_sendfile64                  compat_sys_sendfile64
> +210     common  futex                           sys_futex                       compat_sys_futex
> +211     common  sched_setaffinity               sys_sched_setaffinity           compat_sys_sched_setaffinity
> +212     common  sched_getaffinity               sys_sched_getaffinity           compat_sys_sched_getaffinity
> +215     common  io_setup                        sys_io_setup                    compat_sys_io_setup
> +216     common  io_destroy                      sys_io_destroy
> +217     common  io_getevents                    sys_io_getevents                compat_sys_io_getevents
> +218     common  io_submit                       sys_io_submit                   compat_sys_io_submit
> +219     common  io_cancel                       sys_io_cancel
> +222     common  exit_group                      sys_exit_group
> +223     common  lookup_dcookie                  sys_lookup_dcookie              compat_sys_lookup_dcookie
> +224     common  epoll_create                    sys_epoll_create
> +225     common  epoll_ctl                       sys_epoll_ctl
> +226     common  epoll_wait                      sys_epoll_wait
> +227     common  remap_file_pages                sys_remap_file_pages
> +228     common  semtimedop                      sys_semtimedop                  compat_sys_semtimedop
> +229     common  mq_open                         sys_mq_open                     compat_sys_mq_open
> +230     common  mq_unlink                       sys_mq_unlink
> +231     common  mq_timedsend                    sys_mq_timedsend                compat_sys_mq_timedsend
> +232     common  mq_timedreceive                 sys_mq_timedreceive             compat_sys_mq_timedreceive
> +233     common  mq_notify                       sys_mq_notify                   compat_sys_mq_notify
> +234     common  mq_getsetattr                   sys_mq_getsetattr               compat_sys_mq_getsetattr
> +235     common  waitid                          sys_waitid                      compat_sys_waitid
> +236     common  fadvise64_64                    sys_fadvise64_64                parisc_fadvise64_64
> +237     common  set_tid_address                 sys_set_tid_address
> +238     common  setxattr                        sys_setxattr
> +239     common  lsetxattr                       sys_lsetxattr
> +240     common  fsetxattr                       sys_fsetxattr
> +241     common  getxattr                        sys_getxattr
> +242     common  lgetxattr                       sys_lgetxattr
> +243     common  fgetxattr                       sys_fgetxattr
> +244     common  listxattr                       sys_listxattr
> +245     common  llistxattr                      sys_llistxattr
> +246     common  flistxattr                      sys_flistxattr
> +247     common  removexattr                     sys_removexattr
> +248     common  lremovexattr                    sys_lremovexattr
> +249     common  fremovexattr                    sys_fremovexattr
> +250     common  timer_create                    sys_timer_create                compat_sys_timer_create
> +251     common  timer_settime                   sys_timer_settime               compat_sys_timer_settime
> +252     common  timer_gettime                   sys_timer_gettime               compat_sys_timer_gettime
> +253     common  timer_getoverrun                sys_timer_getoverrun
> +254     common  timer_delete                    sys_timer_delete
> +255     common  clock_settime                   sys_clock_settime               compat_sys_clock_settime
> +256     common  clock_gettime                   sys_clock_gettime               compat_sys_clock_gettime
> +257     common  clock_getres                    sys_clock_getres                compat_sys_clock_getres
> +258     common  clock_nanosleep                 sys_clock_nanosleep             compat_sys_clock_nanosleep
> +259     common  tgkill                          sys_tgkill
> +260     common  mbind                           sys_mbind                       compat_sys_mbind
> +261     common  get_mempolicy                   sys_get_mempolicy               compat_sys_get_mempolicy
> +262     common  set_mempolicy                   sys_set_mempolicy               compat_sys_set_mempolicy
> +264     common  add_key                         sys_add_key
> +265     common  request_key                     sys_request_key
> +266     common  keyctl                          sys_keyctl                      compat_sys_keyctl
> +267     common  ioprio_set                      sys_ioprio_set
> +268     common  ioprio_get                      sys_ioprio_get
> +269     common  inotify_init                    sys_inotify_init
> +270     common  inotify_add_watch               sys_inotify_add_watch
> +271     common  inotify_rm_watch                sys_inotify_rm_watch
> +272     common  migrate_pages                   sys_migrate_pages
> +273     common  pselect6                        sys_pselect6                    compat_sys_pselect6
> +274     common  ppoll                           sys_ppoll                       compat_sys_ppoll
> +275     common  openat                          sys_openat                      compat_sys_openat
> +276     common  mkdirat                         sys_mkdirat
> +277     common  mknodat                         sys_mknodat
> +278     common  fchownat                        sys_fchownat
> +279     common  futimesat                       sys_futimesat                   compat_sys_futimesat
> +280     common  fstatat64                       sys_fstatat64
> +281     common  unlinkat                        sys_unlinkat
> +282     common  renameat                        sys_renameat
> +283     common  linkat                          sys_linkat
> +284     common  symlinkat                       sys_symlinkat
> +285     common  readlinkat                      sys_readlinkat
> +286     common  fchmodat                        sys_fchmodat
> +287     common  faccessat                       sys_faccessat
> +288     common  unshare                         sys_unshare
> +289     common  set_robust_list                 sys_set_robust_list             compat_sys_set_robust_list
> +290     common  get_robust_list                 sys_get_robust_list             compat_sys_get_robust_list
> +291     common  splice                          sys_splice
> +292     common  sync_file_range                 sys_sync_file_range             parisc_sync_file_range
> +293     common  tee                             sys_tee
> +294     common  vmsplice                        sys_vmsplice                    compat_sys_vmsplice
> +295     common  move_pages                      sys_move_pages                  compat_sys_move_pages
> +296     common  getcpu                          sys_getcpu
> +297     common  epoll_pwait                     sys_epoll_pwait                 compat_sys_epoll_pwait
> +298     common  statfs64                        sys_statfs64                    compat_sys_statfs64
> +299     common  fstatfs64                       sys_fstatfs64                   compat_sys_fstatfs64
> +300     common  kexec_load                      sys_kexec_load                  compat_sys_kexec_load
> +301     common  utimensat                       sys_utimensat                   compat_sys_utimensat
> +302     common  signalfd                        sys_signalfd                    compat_sys_signalfd
> +304     common  eventfd                         sys_eventfd
> +305     common  fallocate                       sys_fallocate                   parisc_fallocate
> +306     common  timerfd_create                  sys_timerfd_create
> +307     common  timerfd_settime                 sys_timerfd_settime             compat_sys_timerfd_settime
> +308     common  timerfd_gettime                 sys_timerfd_gettime             compat_sys_timerfd_gettime
> +309     common  signalfd4                       sys_signalfd4                   compat_sys_signalfd4
> +310     common  eventfd2                        sys_eventfd2
> +311     common  epoll_create1                   sys_epoll_create1
> +312     common  dup3                            sys_dup3
> +313     common  pipe2                           sys_pipe2
> +314     common  inotify_init1                   sys_inotify_init1
> +315     common  preadv                          sys_preadv                      compat_sys_preadv
> +316     common  pwritev                         sys_pwritev                     compat_sys_pwritev
> +317     common  rt_tgsigqueueinfo               sys_rt_tgsigqueueinfo           compat_sys_rt_tgsigqueueinfo
> +318     common  perf_event_open                 sys_perf_event_open
> +319     common  recvmmsg                        sys_recvmmsg                    compat_sys_recvmmsg
> +320     common  accept4                         sys_accept4
> +321     common  prlimit64                       sys_prlimit64
> +322     common  fanotify_init                   sys_fanotify_init
> +323     common  fanotify_mark                   sys_fanotify_mark               sys32_fanotify_mark
> +324     common  clock_adjtime                   sys_clock_adjtime               compat_sys_clock_adjtime
> +325     common  name_to_handle_at               sys_name_to_handle_at
> +326     common  open_by_handle_at               sys_open_by_handle_at           compat_sys_open_by_handle_at
> +327     common  syncfs                          sys_syncfs
> +328     common  setns                           sys_setns
> +329     common  sendmmsg                        sys_sendmmsg                    compat_sys_sendmmsg
> +330     common  process_vm_readv                sys_process_vm_readv            compat_sys_process_vm_readv
> +331     common  process_vm_writev               sys_process_vm_writev           compat_sys_process_vm_writev
> +332     common  kcmp                            sys_kcmp
> +333     common  finit_module                    sys_finit_module
> +334     common  sched_setattr                   sys_sched_setattr
> +335     common  sched_getattr                   sys_sched_getattr
> +336     common  utimes                          sys_utimes                      compat_sys_utimes
> +337     common  renameat2                       sys_renameat2
> +338     common  seccomp                         sys_seccomp
> +339     common  getrandom                       sys_getrandom
> +340     common  memfd_create                    sys_memfd_create
> +341     common  bpf                             sys_bpf
> +342     common  execveat                        sys_execveat                    compat_sys_execveat
> +343     common  membarrier                      sys_membarrier
> +344     common  userfaultfd                     sys_userfaultfd
> +345     common  mlock2                          sys_mlock2
> +346     common  copy_file_range                 sys_copy_file_range
> +347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
> +348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
> +349     common  statx                           sys_statx
> +350    common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> \ No newline at end of file
> diff --git a/arch/parisc/kernel/syscalls/syscall_64.tbl b/arch/parisc/kernel/syscalls/syscall_64.tbl
> new file mode 100644
> index 0000000..48d6366
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/syscall_64.tbl
> @@ -0,0 +1,342 @@
> +#
> +# 64-bit system call numbers and entry vectors
> +#
> +# The format is:
> +# <number> <abi> <name> <entry point>
> +#
> +# The abi is "common" for this file.
> +#
> +0       common  restart_syscall                 sys_restart_syscall
> +1       common  exit                            sys_exit
> +2       common  fork                            sys_fork_wrapper
> +3       common  read                            sys_read
> +4       common  write                           sys_write
> +5       common  open                            sys_open
> +6       common  close                           sys_close
> +7       common  waitpid                         sys_waitpid
> +8       common  creat                           sys_creat
> +9       common  link                            sys_link
> +10      common  unlink                          sys_unlink
> +11      common  execve                          sys_execve
> +12      common  chdir                           sys_chdir
> +13      common  time                            sys_time
> +14      common  mknod                           sys_mknod
> +15      common  chmod                           sys_chmod
> +16      common  lchown                          sys_lchown
> +17      common  socket                          sys_socket
> +18      common  stat                            sys_newstat
> +19      common  lseek                           sys_lseek
> +20      common  getpid                          sys_getpid
> +21      common  mount                           sys_mount
> +22      common  bind                            sys_bind
> +23      common  setuid                          sys_setuid
> +24      common  getuid                          sys_getuid
> +25      common  stime                           sys_stime
> +26      common  ptrace                          sys_ptrace
> +27      common  alarm                           sys_alarm
> +28      common  fstat                           sys_newfstat
> +29      common  pause                           sys_pause
> +30      common  utime                           sys_utime
> +31      common  connect                         sys_connect
> +32      common  listen                          sys_listen
> +33      common  access                          sys_access
> +34      common  nice                            sys_nice
> +35      common  accept                          sys_accept
> +36      common  sync                            sys_sync
> +37      common  kill                            sys_kill
> +38      common  rename                          sys_rename
> +39      common  mkdir                           sys_mkdir
> +40      common  rmdir                           sys_rmdir
> +41      common  dup                             sys_dup
> +42      common  pipe                            sys_pipe
> +43      common  times                           sys_times
> +44      common  getsockname                     sys_getsockname
> +45      common  brk                             sys_brk
> +46      common  setgid                          sys_setgid
> +47      common  getgid                          sys_getgid
> +48      common  signal                          sys_signal
> +49      common  geteuid                         sys_geteuid
> +50      common  getegid                         sys_getegid
> +51      common  acct                            sys_acct
> +52      common  umount2                         sys_umount
> +53      common  getpeername                     sys_getpeername
> +54      common  ioctl                           sys_ioctl
> +55      common  fcntl                           sys_fcntl
> +56      common  socketpair                      sys_socketpair
> +57      common  setpgid                         sys_setpgid
> +58      common  send                            sys_send
> +59      common  uname                           sys_newuname
> +60      common  umask                           sys_umask
> +61      common  chroot                          sys_chroot
> +62      common  ustat                           sys_ustat
> +63      common  dup2                            sys_dup2
> +64      common  getppid                         sys_getppid
> +65      common  getpgrp                         sys_getpgrp
> +66      common  setsid                          sys_setsid
> +67      common  pivot_root                      sys_pivot_root
> +68      common  sgetmask                        sys_sgetmask
> +69      common  ssetmask                        sys_ssetmask
> +70      common  setreuid                        sys_setreuid
> +71      common  setregid                        sys_setregid
> +72      common  mincore                         sys_mincore
> +73      common  sigpending                      sys_sigpending
> +74      common  sethostname                     sys_sethostname
> +75      common  setrlimit                       sys_setrlimit
> +76      common  getrlimit                       sys_getrlimit
> +77      common  getrusage                       sys_getrusage
> +78      common  gettimeofday                    sys_gettimeofday
> +79      common  settimeofday                    sys_settimeofday
> +80      common  getgroups                       sys_getgroups
> +81      common  setgroups                       sys_setgroups
> +82      common  sendto                          sys_sendto
> +83      common  symlink                         sys_symlink
> +84      common  lstat                           sys_newlstat
> +85      common  readlink                        sys_readlink
> +86      common  uselib                          sys_ni_syscall
> +87      common  swapon                          sys_swapon
> +88      common  reboot                          sys_reboot
> +89      common  mmap2                           sys_mmap2
> +90      common  mmap                            sys_mmap
> +91      common  munmap                          sys_munmap
> +92      common  truncate                        sys_truncate
> +93      common  ftruncate                       sys_ftruncate
> +94      common  fchmod                          sys_fchmod
> +95      common  fchown                          sys_fchown
> +96      common  getpriority                     sys_getpriority
> +97      common  setpriority                     sys_setpriority
> +98      common  recv                            sys_recv
> +99      common  statfs                          sys_statfs
> +100     common  fstatfs                         sys_fstatfs
> +101     common  stat64                          sys_stat64
> +103     common  syslog                          sys_syslog
> +104     common  setitimer                       sys_setitimer
> +105     common  getitimer                       sys_getitimer
> +106     common  capget                          sys_capget
> +107     common  capset                          sys_capset
> +108     common  pread64                         sys_pread64
> +109     common  pwrite64                        sys_pwrite64
> +110     common  getcwd                          sys_getcwd
> +111     common  vhangup                         sys_vhangup
> +112     common  fstat64                         sys_fstat64
> +113     common  vfork                           sys_vfork_wrapper
> +114     common  wait4                           sys_wait4
> +115     common  swapoff                         sys_swapoff
> +116     common  sysinfo                         sys_sysinfo
> +117     common  shutdown                        sys_shutdown
> +118     common  fsync                           sys_fsync
> +119     common  madvise                         sys_madvise
> +120     common  clone                           sys_clone_wrapper
> +121     common  setdomainname                   sys_setdomainname
> +122     common  sendfile                        sys_sendfile
> +123     common  recvfrom                        sys_recvfrom
> +124     common  adjtimex                        sys_adjtimex
> +125     common  mprotect                        sys_mprotect
> +126     common  sigprocmask                     sys_sigprocmask
> +128     common  init_module                     sys_init_module
> +129     common  delete_module                   sys_delete_module
> +131     common  quotactl                        sys_quotactl
> +132     common  getpgid                         sys_getpgid
> +133     common  fchdir                          sys_fchdir
> +134     common  bdflush                         sys_bdflush
> +135     common  sysfs                           sys_sysfs
> +136     common  personality                     sys_personality
> +138     common  setfsuid                        sys_setfsuid
> +139     common  setfsgid                        sys_setfsgid
> +140     common  _llseek                         sys_llseek
> +141     common  getdents                        sys_getdents
> +142     common  _newselect                      sys_select
> +143     common  flock                           sys_flock
> +144     common  msync                           sys_msync
> +145     common  readv                           sys_readv
> +146     common  writev                          sys_writev
> +147     common  getsid                          sys_getsid
> +148     common  fdatasync                       sys_fdatasync
> +149     common  _sysctl                         sys_sysctl
> +150     common  mlock                           sys_mlock
> +151     common  munlock                         sys_munlock
> +152     common  mlockall                        sys_mlockall
> +153     common  munlockall                      sys_munlockall
> +154     common  sched_setparam                  sys_sched_setparam
> +155     common  sched_getparam                  sys_sched_getparam
> +156     common  sched_setscheduler              sys_sched_setscheduler
> +157     common  sched_getscheduler              sys_sched_getscheduler
> +158     common  sched_yield                     sys_sched_yield
> +159     common  sched_get_priority_max          sys_sched_get_priority_max
> +160     common  sched_get_priority_min          sys_sched_get_priority_min
> +161     common  sched_rr_get_interval           sys_sched_rr_get_interval
> +162     common  nanosleep                       sys_nanosleep
> +163     common  mremap                          sys_mremap
> +164     common  setresuid                       sys_setresuid
> +165     common  getresuid                       sys_getresuid
> +166     common  sigaltstack                     sys_sigaltstack
> +168     common  poll                            sys_poll
> +170     common  setresgid                       sys_setresgid
> +171     common  getresgid                       sys_getresgid
> +172     common  prctl                           sys_prctl
> +173     common  rt_sigreturn                    sys_rt_sigreturn
> +174     common  rt_sigaction                    sys_rt_sigaction
> +175     common  rt_sigprocmask                  sys_rt_sigprocmask
> +176     common  rt_sigpending                   sys_rt_sigpending
> +177     common  rt_sigtimedwait                 sys_rt_sigtimedwait
> +178     common  rt_sigqueueinfo                 sys_rt_sigqueueinfo
> +179     common  rt_sigsuspend                   sys_rt_sigsuspend
> +180     common  chown                           sys_chown
> +181     common  setsockopt                      sys_setsockopt
> +182     common  getsockopt                      sys_getsockopt
> +183     common  sendmsg                         sys_sendmsg
> +184     common  recvmsg                         sys_recvmsg
> +185     common  semop                           sys_semop
> +186     common  semget                          sys_semget
> +187     common  semctl                          sys_semctl
> +188     common  msgsnd                          sys_msgsnd
> +189     common  msgrcv                          sys_msgrcv
> +190     common  msgget                          sys_msgget
> +191     common  msgctl                          sys_msgctl
> +192     common  shmat                           sys_shmat
> +193     common  shmdt                           sys_shmdt
> +194     common  shmget                          sys_shmget
> +195     common  shmctl                          sys_shmctl
> +198     common  lstat64                         sys_lstat64
> +199     common  truncate64                      sys_truncate64
> +200     common  ftruncate64                     sys_ftruncate64
> +201     common  getdents64                      sys_getdents64
> +202     common  fcntl64                         sys_fcntl64
> +206     common  gettid                          sys_gettid
> +207     common  readahead                       sys_readahead
> +208     common  tkill                           sys_tkill
> +209     common  sendfile64                      sys_sendfile64
> +210     common  futex                           sys_futex
> +211     common  sched_setaffinity               sys_sched_setaffinity
> +212     common  sched_getaffinity               sys_sched_getaffinity
> +215     common  io_setup                        sys_io_setup
> +216     common  io_destroy                      sys_io_destroy
> +217     common  io_getevents                    sys_io_getevents
> +218     common  io_submit                       sys_io_submit
> +219     common  io_cancel                       sys_io_cancel
> +222     common  exit_group                      sys_exit_group
> +223     common  lookup_dcookie                  sys_lookup_dcookie
> +224     common  epoll_create                    sys_epoll_create
> +225     common  epoll_ctl                       sys_epoll_ctl
> +226     common  epoll_wait                      sys_epoll_wait
> +227     common  remap_file_pages                sys_remap_file_pages
> +228     common  semtimedop                      sys_semtimedop
> +229     common  mq_open                         sys_mq_open
> +230     common  mq_unlink                       sys_mq_unlink
> +231     common  mq_timedsend                    sys_mq_timedsend
> +232     common  mq_timedreceive                 sys_mq_timedreceive
> +233     common  mq_notify                       sys_mq_notify
> +234     common  mq_getsetattr                   sys_mq_getsetattr
> +235     common  waitid                          sys_waitid
> +236     common  fadvise64_64                    sys_fadvise64_64
> +237     common  set_tid_address                 sys_set_tid_address
> +238     common  setxattr                        sys_setxattr
> +239     common  lsetxattr                       sys_lsetxattr
> +240     common  fsetxattr                       sys_fsetxattr
> +241     common  getxattr                        sys_getxattr
> +242     common  lgetxattr                       sys_lgetxattr
> +243     common  fgetxattr                       sys_fgetxattr
> +244     common  listxattr                       sys_listxattr


From - Thu Nov 08 21:42:05 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [GIT PULL] parisc fixes for kernel v4.19
Date: Wed, 3 Oct 2018 16:47:30 +0200
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References: <20181002210213.GA17826@ls3530.fritz.box>
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On 03.10.2018 00:24, Greg Kroah-Hartman wrote:
> On Tue, Oct 02, 2018 at 11:46:11PM +0200, Helge Deller wrote:
>> Hi Greg,
>>
>> On 02.10.2018 23:16, Greg Kroah-Hartman wrote:
>>> On Tue, Oct 02, 2018 at 11:02:13PM +0200, Helge Deller wrote:
>>>> please pull a last set of fixes for the parisc architecture for kernel 4.19 from:
>>>>
>>>>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.19-3
>>>>
>>>> The major change is for parisc64 to use a 64-bit suseconds_t type to
>>>> match what glibc expects for 64-bit userspace. It's an ABI change, but
>>>> since we don't have a 64-bit userspace on parisc yet, it won't introduce
>>>> a breakage.
>>>
>>> Isn't it a bit "late" in the release cycle for such a change?  Why not
>>> do this on the -rc1 release?
>>
>> I've tagged it for stable release.
>> So, it can go in now, or just wait until -rc1 and go in later.
> 
> Why is a major API change a viable stable change?

Of course it's not.
Esp. not if an API has been used already.
IMHO, this case is really different though... 

> What bugfix does it provide?

It fixes that code in stable kernels which would return wrong
time values *if* someone would create a libc for 64-bit parisc
and would run it with those "stable" kernels.
Fixing it now has no side-effects, the change is a trivial
2-line-removal patch, would bring the code in sync with
newer kernel source code, and it really fixes existing code. 

I still believe that this justifies for a backport.

Nevertheless, if you really disagree, I'm fine dropping the 
backport to stable and will only push it in the next
merge window for v4.20.
 
>>>> Other than that we simply drop unused code and outdated gcc version
>>>> checks.
>>>
>>> Why are those needed now?
>>
>> The patch in there which is by me changes one line simply cleans up a patch which
>> went in during the 4.19 merge cycle. So it would be nice to have it
>> added now before v4.19 gets released.
>> The other two patches are trivial and just remove dead code.
>> I rate them all as non-critical, but nice-to-have-in-v4.19. 
>>
>> If you disagree I'm absolutely fine to wait with all of them 
>> for the next merge window.
> 
> Normally I only let "bugfixes" into my trees at this point in time.
> cleanups always wait for the next -rc1 merge window as that's what it is
> there for.  So I'd recommend waiting as well.

Ok.

Helge


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From: Leonardo Bras <leobras.c@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: Re: [PATCH v3 0/7] Remove errors building drivers/DRIVERNAME
Date: Wed, 3 Oct 2018 12:46:15 -0300
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Cc: lkcamp@lists.libreplanetbr.org,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Finn Thain <fthain@telegraphics.com.au>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
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To: Robert Richter <rric@kernel.org>
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On Mon, Oct 1, 2018 at 4:56 AM Robert Richter <rric@kernel.org> wrote:
>
> On 27.09.18 23:08:09, Leonardo Br=C3=A1s wrote:
> > This Patchset changes some driver's Makefile to allow them building
> > using the command 'make drivers/DRIVERNAME', if compatible.
> >
> > The changed drivers would return error if the above command was run
> > on them, after an x86 allyesconfig.
>
> I don't see what you are trying to achieve here. Why shouldn't the
> command fail if it is not the intended way to call it? There are a
> couple of use cases where drivers/ is used to share common code over
> different archs and it is not always the intention to build them in
> drivers/ directly.


Sorry, I was not very clear at my reasons why this change is important,
I will try to briefly explain the whole story.

Some weeks ago I was trying to solve a task that needed to change some
compiling options, build the whole kernel (allyesconfig) and look for error=
s.
The problem was: It would take a long time to build everything in my comput=
er.
And many friends with slimmer laptops would take much longer.

So, I was looking for a service that could do that for me, in the cloud.
I found out Gitlab.com offers free 50k minutes of CI for open source projec=
ts,
and allows anyone get this CI time by only forking my project, adding their
changes and pushing to Gitlab.

But Gitlab don't allow 'jobs' to take longer than 3 hours, after that the '=
job'
is killed.

The kernel could not be built in 3h, not with allyesconfig. So, I created a
'job' for each directory in Linux kernel, and tried to build them separatel=
y.
All went fine, except for drivers/, which took over 3 hours.

Most logical thing was to continue the division and create five 'jobs' that
could divide the building time of drivers. To do that, each job took care o=
f a
range of starting letters, as you can see in this link:
https://gitlab.com/LeoBras/linux-next/blob/build-ci/.gitlab-ci.yml

But then I found out some drivers were failing to build. Even if they were =
not
enabled in my .config. After some work I found out some drivers selection i=
s
done in drivers/Makefile, and incompatible drivers would break my build if
tried to call them directly on drivers/DRIVERNAME.

This patchset intents to let the .config selection happen also in
drivers/DRIVERNAME/Makefile, avoiding accidentally building drivers
that are not in .config.

This would allow the kernel to be build on Gitlab CI, and would benefit man=
y
people who wants to help in the kernel development, but have not much
processing power in their machines.

I understand my changes may have mistakes, and I am trying to fix them all.
I thank you any suggestion to make the code better.

Also, I would be happy to know of any other solution to remote build my cha=
nges
and look for warnkings / errors.


Thank you for reading,
Leonardo Bras


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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [GIT PULL] parisc fixes for kernel v4.19
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Adding Arnd as he wrote the patch in question here...

On Wed, Oct 03, 2018 at 04:47:30PM +0200, Helge Deller wrote:
> On 03.10.2018 00:24, Greg Kroah-Hartman wrote:
> > On Tue, Oct 02, 2018 at 11:46:11PM +0200, Helge Deller wrote:
> >> Hi Greg,
> >>
> >> On 02.10.2018 23:16, Greg Kroah-Hartman wrote:
> >>> On Tue, Oct 02, 2018 at 11:02:13PM +0200, Helge Deller wrote:
> >>>> please pull a last set of fixes for the parisc architecture for kernel 4.19 from:
> >>>>
> >>>>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.19-3
> >>>>
> >>>> The major change is for parisc64 to use a 64-bit suseconds_t type to
> >>>> match what glibc expects for 64-bit userspace. It's an ABI change, but
> >>>> since we don't have a 64-bit userspace on parisc yet, it won't introduce
> >>>> a breakage.
> >>>
> >>> Isn't it a bit "late" in the release cycle for such a change?  Why not
> >>> do this on the -rc1 release?
> >>
> >> I've tagged it for stable release.
> >> So, it can go in now, or just wait until -rc1 and go in later.
> > 
> > Why is a major API change a viable stable change?
> 
> Of course it's not.
> Esp. not if an API has been used already.
> IMHO, this case is really different though... 
> 
> > What bugfix does it provide?
> 
> It fixes that code in stable kernels which would return wrong
> time values *if* someone would create a libc for 64-bit parisc
> and would run it with those "stable" kernels.
> Fixing it now has no side-effects, the change is a trivial
> 2-line-removal patch, would bring the code in sync with
> newer kernel source code, and it really fixes existing code. 
> 
> I still believe that this justifies for a backport.
> 
> Nevertheless, if you really disagree, I'm fine dropping the 
> backport to stable and will only push it in the next
> merge window for v4.20.

To clarify, you have no users of this api anywhere (hopefully), and so
the patch in question prevents anyone from using the api in the future.
This makes the suseconds_t handling easier for some reason because only
sparc32 is a "problem" now, right?

So I don't see the "bug" that is being fixed here.  I would have pushed
back on the submission for this for the stable trees as well, this isn't
anything that anyone is using, so there's nothing to "fix" that I can
tell.

Yes, doing it in the "future" is fine, to prevent anyone from making
this mistake (are new machines even being made for this arch?)  But I
don't see how this is a -stable issue.

In this series, only the first patch, would seem to be a real fix, but
even that one isn't.  You are just using a #define for a magic number,
one that will never change either way (the define will never change.) So
that too isn't really a fix, just a code cleanup.

So I am strongly inclined to just not take any of these right now.

thanks,

greg k-h


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On Wed, Oct 3, 2018 at 8:16 PM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
> On Wed, Oct 03, 2018 at 04:47:30PM +0200, Helge Deller wrote:
> > On 03.10.2018 00:24, Greg Kroah-Hartman wrote:
> > > On Tue, Oct 02, 2018 at 11:46:11PM +0200, Helge Deller wrote:
> > >>
> > >> I've tagged it for stable release.
> > >> So, it can go in now, or just wait until -rc1 and go in later.
> > >
> > > Why is a major API change a viable stable change?
> >
> > Of course it's not.
> > Esp. not if an API has been used already.
> > IMHO, this case is really different though...
> >
> > > What bugfix does it provide?
> >
> > It fixes that code in stable kernels which would return wrong
> > time values *if* someone would create a libc for 64-bit parisc
> > and would run it with those "stable" kernels.
> > Fixing it now has no side-effects, the change is a trivial
> > 2-line-removal patch, would bring the code in sync with
> > newer kernel source code, and it really fixes existing code.
> >
> > I still believe that this justifies for a backport.
> >
> > Nevertheless, if you really disagree, I'm fine dropping the
> > backport to stable and will only push it in the next
> > merge window for v4.20.
>
> To clarify, you have no users of this api anywhere (hopefully), and so
> the patch in question prevents anyone from using the api in the future.
> This makes the suseconds_t handling easier for some reason because only
> sparc32 is a "problem" now, right?
>
> So I don't see the "bug" that is being fixed here.  I would have pushed
> back on the submission for this for the stable trees as well, this isn't
> anything that anyone is using, so there's nothing to "fix" that I can
> tell.
>
> Yes, doing it in the "future" is fine, to prevent anyone from making
> this mistake (are new machines even being made for this arch?)  But I
> don't see how this is a -stable issue.

The issue here is that glibc has in theory supported 64-bit parisc
user space for a long time, but it has never worked because of the
mismatch. It is very likely that there other problems like it that
/also/ prevent it from working.

Between changing kernel or glibc, I think it's clear that the glibc
has made the better choice of being compatible with all other
architectures (except sparc64), so changing the kernel is better
here.

Between fixing it this late, or doing it for the next merge window,
I don't care. There clearly are no users that are affected by it
today, and if there were, this would fix an important bug, both
security (kernel stack information leak) and functionality
(improving accuracy of gettimeofday() from seconds to
microseconds).

Between backporting it to stable or not, I'd be in favor of the
backport: If we ever want to support 64-bit user space on parisc,
then it's better to have stable kernels get the same working
ABI that new kernels have after the fix (and any other fixes we
may require on top). Or to put it another way: If the argument is
that there won't ever be a 64-bit user space for parisc and we don't
care about it, then we'd be better of removing all native 64-bit
syscalls from arch/parisc/kernel/syscall_table.S.

      Arnd


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Subject: Re: [GIT PULL] parisc fixes for kernel v4.19
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To: Arnd Bergmann <arnd@arndb.de>
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On Wed, Oct 03, 2018 at 09:49:08PM +0200, Arnd Bergmann wrote:
> On Wed, Oct 3, 2018 at 8:16 PM Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> > On Wed, Oct 03, 2018 at 04:47:30PM +0200, Helge Deller wrote:
> > > On 03.10.2018 00:24, Greg Kroah-Hartman wrote:
> > > > On Tue, Oct 02, 2018 at 11:46:11PM +0200, Helge Deller wrote:
> > > >>
> > > >> I've tagged it for stable release.
> > > >> So, it can go in now, or just wait until -rc1 and go in later.
> > > >
> > > > Why is a major API change a viable stable change?
> > >
> > > Of course it's not.
> > > Esp. not if an API has been used already.
> > > IMHO, this case is really different though...
> > >
> > > > What bugfix does it provide?
> > >
> > > It fixes that code in stable kernels which would return wrong
> > > time values *if* someone would create a libc for 64-bit parisc
> > > and would run it with those "stable" kernels.
> > > Fixing it now has no side-effects, the change is a trivial
> > > 2-line-removal patch, would bring the code in sync with
> > > newer kernel source code, and it really fixes existing code.
> > >
> > > I still believe that this justifies for a backport.
> > >
> > > Nevertheless, if you really disagree, I'm fine dropping the
> > > backport to stable and will only push it in the next
> > > merge window for v4.20.
> >
> > To clarify, you have no users of this api anywhere (hopefully), and so
> > the patch in question prevents anyone from using the api in the future.
> > This makes the suseconds_t handling easier for some reason because only
> > sparc32 is a "problem" now, right?
> >
> > So I don't see the "bug" that is being fixed here.  I would have pushed
> > back on the submission for this for the stable trees as well, this isn't
> > anything that anyone is using, so there's nothing to "fix" that I can
> > tell.
> >
> > Yes, doing it in the "future" is fine, to prevent anyone from making
> > this mistake (are new machines even being made for this arch?)  But I
> > don't see how this is a -stable issue.
> 
> The issue here is that glibc has in theory supported 64-bit parisc
> user space for a long time, but it has never worked because of the
> mismatch. It is very likely that there other problems like it that
> /also/ prevent it from working.
> 
> Between changing kernel or glibc, I think it's clear that the glibc
> has made the better choice of being compatible with all other
> architectures (except sparc64), so changing the kernel is better
> here.
> 
> Between fixing it this late, or doing it for the next merge window,
> I don't care. There clearly are no users that are affected by it
> today, and if there were, this would fix an important bug, both
> security (kernel stack information leak) and functionality
> (improving accuracy of gettimeofday() from seconds to
> microseconds).
> 
> Between backporting it to stable or not, I'd be in favor of the
> backport: If we ever want to support 64-bit user space on parisc,
> then it's better to have stable kernels get the same working
> ABI that new kernels have after the fix (and any other fixes we
> may require on top). Or to put it another way: If the argument is
> that there won't ever be a 64-bit user space for parisc and we don't
> care about it, then we'd be better of removing all native 64-bit
> syscalls from arch/parisc/kernel/syscall_table.S.

Ok, then let's treat this like any other arch/driver/subsystem that we
remove.  Drop the file(s) in a -rc1 merge window and then if anyone
object to it later on because they really were using it, you can easily
revert that change.

We do not backport removals of drivers/subsystems/arches to stable
kernels, so this shouldn't happen here either.

thanks,

greg k-h


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From: Finn Thain <fthain@telegraphics.com.au>
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Subject: Re: [PATCH v3 0/7] Remove errors building drivers/DRIVERNAME
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Cc: Robert Richter <rric@kernel.org>, lkcamp@lists.libreplanetbr.org,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
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To: Leonardo Bras <leobras.c@gmail.com>
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On Wed, 3 Oct 2018, Leonardo Bras wrote:

> 
> Sorry, I was not very clear at my reasons why this change is important, 
> I will try to briefly explain the whole story.
> 
> Some weeks ago I was trying to solve a task that needed to change some 
> compiling options, build the whole kernel (allyesconfig) and look for 
> errors. The problem was: It would take a long time to build everything 
> in my computer. And many friends with slimmer laptops would take much 
> longer.
> 

It seems to me that you shouldn't need expensive optimization for 
continuous integration. In theory that could make a big difference though 
I admit to no experience of build farms.

Have you looked at ccache? It will save you from having to recompile any 
files not changed.

You could also leverage all of your laptops together using distcc.

HTH.

-- 


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Subject: Re: [PATCH v3 3/7] drivers: parisc: Avoids building driver if
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On Fri, Sep 28, 2018 at 4:15 AM James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
>
> On Thu, 2018-09-27 at 23:08 -0300, Leonardo Br=C3=A1s wrote:
> > Avoids building driver if 'make drivers/parisc/' is called and
> > CONFIG_PARISC is disabled.
>
> Is that really a problem? The drivers/Makefile has this:
>
> obj-$(CONFIG_PARISC)            +=3D parisc/
> And you just overrode that by forcing the build.  It's not even clear
> we should refuse the build in that case; how would we know you don't
> have a legitimate reason for the override?
>

Sorry I did not explained my reasons earlier. I sent everybody involved an
e-mail explaining the full reason of this change.
(For reference it's here: https://lkml.org/lkml/2018/10/3/707)

> Signed-off-by: Leonardo Br=C3=A1s <leobras.c@gmail.com>
> > ---
> >  drivers/parisc/Makefile | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/parisc/Makefile b/drivers/parisc/Makefile
> > index 3cd5e6cb8478..80049d763aa0 100644
> > --- a/drivers/parisc/Makefile
> > +++ b/drivers/parisc/Makefile
> > @@ -24,5 +24,5 @@ obj-$(CONFIG_EISA)          +=3D eisa.o
> > eisa_enumerator.o eisa_eeprom.o
> >  obj-$(CONFIG_SUPERIO)                +=3D superio.o
> >  obj-$(CONFIG_CHASSIS_LCD_LED)        +=3D led.o
> >  obj-$(CONFIG_PDC_STABLE)     +=3D pdc_stable.o
> > -obj-y                                +=3D power.o
> > +obj-$(CONFIG_PARISC)         +=3D power.o
>
> If we conclude the use case is legitimate, that's not enough: the two
> inner symbols are PARISC only but CONFIG_EISA isn't.

You are right.
It worked for my needs because I am only building the drivers, and not
linking them. But i believe doing something like I did in zorro/Makefile
would fix this all. (For reference, https://lkml.org/lkml/2018/9/28/150 )

If you agree, I will send the next patchset with this change.

Thanks for your help!

Leonardo Bras


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From: Leonardo Bras <leobras.c@gmail.com>
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Subject: Re: [PATCH v3 5/7] drivers: s390: Avoids building drivers if ARCH is
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To: Heiko Carstens <heiko.carstens@de.ibm.com>
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On Mon, Oct 1, 2018 at 9:46 AM Heiko Carstens <heiko.carstens@de.ibm.com> w=
rote:
>
> On Thu, Sep 27, 2018 at 11:08:14PM -0300, Leonardo Br=C3=A1s wrote:
> > Avoids building s390 drivers if 'make drivers/s390/' is called but
> > ARCH is not s390.
> >
> > Signed-off-by: Leonardo Br=C3=A1s <leobras.c@gmail.com>
> > ---
> >  drivers/s390/Makefile | 8 ++++----
> >  1 file changed, 4 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/s390/Makefile b/drivers/s390/Makefile
> > index a863b0462b43..0575f02dba45 100644
> > --- a/drivers/s390/Makefile
> > +++ b/drivers/s390/Makefile
> > @@ -3,7 +3,7 @@
> >  # Makefile for the S/390 specific device drivers
> >  #
> >
> > -obj-y +=3D cio/ block/ char/ crypto/ net/ scsi/ virtio/
> > -
> > -drivers-y +=3D drivers/s390/built-in.a
> > -
> > +ifeq ($(ARCH),s390)
> > +     obj-y +=3D cio/ block/ char/ crypto/ net/ scsi/ virtio/
> > +     drivers-y +=3D drivers/s390/built-in.a
> > +endif
>
> And then somebody wants to build with e.g. "make drivers/s390/cio/" and i=
t
> still doesn't work. So _if_ this should be supported then it should work
> with all directory levels and all configuration options. Otherwise this i=
s
> going to be a never ending story.
>


It makes sense.
I proposed this change to help me solving a problem described here
(https://lkml.org/lkml/2018/10/3/707), and for this it was enough if it did=
n't
build when "make drivers/s390/" was called.

Sorry I didn't send the e-mail with the reason earlier.

For solving my problem it was not necessary, but if you think it's interest=
ing,
I could refactor all drivers/s390 Makefiles to make them all build only if
we are dealing with the s390 architecture.

What do you think?

Thanks for the reply,

Leonardo Bras


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From: Leonardo Bras <leobras.c@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: Re: [PATCH v3 0/7] Remove errors building drivers/DRIVERNAME
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 <CADvQ+rETmm2Ag4sijXG-0Aya7B0oww7LkLgijAC+nznyWskkvg@mail.gmail.com> <alpine.LNX.2.21.1810040915040.8@nippy.intranet>
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Cc: Robert Richter <rric@kernel.org>, lkcamp@lists.libreplanetbr.org,
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To: Finn Thain <fthain@telegraphics.com.au>
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On Wed, Oct 3, 2018 at 8:27 PM Finn Thain <fthain@telegraphics.com.au> wrote:
>
> On Wed, 3 Oct 2018, Leonardo Bras wrote:
>
> >
> > Sorry, I was not very clear at my reasons why this change is important,
> > I will try to briefly explain the whole story.
> >
> > Some weeks ago I was trying to solve a task that needed to change some
> > compiling options, build the whole kernel (allyesconfig) and look for
> > errors. The problem was: It would take a long time to build everything
> > in my computer. And many friends with slimmer laptops would take much
> > longer.
> >
>
> It seems to me that you shouldn't need expensive optimization for
> continuous integration. In theory that could make a big difference though
> I admit to no experience of build farms.
>
> Have you looked at ccache? It will save you from having to recompile any
> files not changed.
>
> You could also leverage all of your laptops together using distcc.
>
> HTH.
>
> --

Both ccache and distcc seem very interesting,
I will take my time to study them better as they can solve some situations
I face. Thanks for sharing!

Still, I believe my patchset is relevant, as it would enable people to rebuild
the whole kernel (with build flags changes, for example) at the cost of only
git-pushing the changes to a fork of my Gitlab repo, and waiting 3 hours.

Thanks for helping!


From - Thu Nov 08 21:42:06 2018
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To: Leonardo Bras <leobras.c@gmail.com>
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On Wed, 3 Oct 2018, Leonardo Bras wrote:

> Both ccache and distcc seem very interesting, I will take my time to 
> study them better as they can solve some situations I face. Thanks for 
> sharing!
> 

You might also want to check out 'gcc -O0', 'gcc -fopt-info' and 'gcc 
--help=optimizers' etc to see if you can reduce the compute cost.

To reduce IO cost, my build tests always use 'make O=/some/path' where 
/some/path is on a tmpfs mountpoint.

HTH.

-- 


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On Wed, 2018-10-03 at 21:31 -0300, Leonardo Bras wrote:
> On Fri, Sep 28, 2018 at 4:15 AM James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
> > 
> > On Thu, 2018-09-27 at 23:08 -0300, Leonardo Brás wrote:
> > > Avoids building driver if 'make drivers/parisc/' is called and
> > > CONFIG_PARISC is disabled.
> > 
> > Is that really a problem? The drivers/Makefile has this:
> > 
> > obj-$(CONFIG_PARISC)            += parisc/
> > And you just overrode that by forcing the build.  It's not even
> > clear we should refuse the build in that case; how would we know
> > you don't have a legitimate reason for the override?
> > 
> 
> Sorry I did not explained my reasons earlier. I sent everybody
> involved an e-mail explaining the full reason of this change.
> (For reference it's here: https://lkml.org/lkml/2018/10/3/707)

Well it's not really that persuasive.  Most people simply let the build
run to completion, but if you have a problem with a job control 3h
timelimit, then create a job that kills itself at 2:59 and then
resubmits itself.  That will produce a complete build in 3h chunks
without any need to call sub Makefiles.

All of our Makefiles are coded assuming the upper level can prevent
descent into the lower ones.  You're proposing to change that
assumption, requiring a fairly large patch set, which doesn't really
seem to provide a huge benefit.

James


> > Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
> > > ---
> > >  drivers/parisc/Makefile | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/drivers/parisc/Makefile b/drivers/parisc/Makefile
> > > index 3cd5e6cb8478..80049d763aa0 100644
> > > --- a/drivers/parisc/Makefile
> > > +++ b/drivers/parisc/Makefile
> > > @@ -24,5 +24,5 @@ obj-$(CONFIG_EISA)          += eisa.o
> > > eisa_enumerator.o eisa_eeprom.o
> > >  obj-$(CONFIG_SUPERIO)                += superio.o
> > >  obj-$(CONFIG_CHASSIS_LCD_LED)        += led.o
> > >  obj-$(CONFIG_PDC_STABLE)     += pdc_stable.o
> > > -obj-y                                += power.o
> > > +obj-$(CONFIG_PARISC)         += power.o
> > 
> > If we conclude the use case is legitimate, that's not enough: the
> > two
> > inner symbols are PARISC only but CONFIG_EISA isn't.
> 
> You are right.
> It worked for my needs because I am only building the drivers, and
> not linking them. But i believe doing something like I did in
> zorro/Makefile would fix this all. (For reference,
> https://lkml.org/lkml/2018/9/28/150 )
> 
> If you agree, I will send the next patchset with this change.
> 
> Thanks for your help!
> 
> Leonardo Bras
> 



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On 04.10.2018 01:02, gregkh wrote:
> On Wed, Oct 03, 2018 at 09:49:08PM +0200, Arnd Bergmann wrote:
>> On Wed, Oct 3, 2018 at 8:16 PM Greg Kroah-Hartman
>> <gregkh@linuxfoundation.org> wrote:
>>> On Wed, Oct 03, 2018 at 04:47:30PM +0200, Helge Deller wrote:
>>>> On 03.10.2018 00:24, Greg Kroah-Hartman wrote:
>>>>> On Tue, Oct 02, 2018 at 11:46:11PM +0200, Helge Deller wrote:
>>>>>>
>>>>>> I've tagged it for stable release.
>>>>>> So, it can go in now, or just wait until -rc1 and go in later.
>>>>>
>>>>> Why is a major API change a viable stable change?
>>>>
>>>> Of course it's not.
>>>> Esp. not if an API has been used already.
>>>> IMHO, this case is really different though...
>>>>
>>>>> What bugfix does it provide?
>>>>
>>>> It fixes that code in stable kernels which would return wrong
>>>> time values *if* someone would create a libc for 64-bit parisc
>>>> and would run it with those "stable" kernels.
>>>> Fixing it now has no side-effects, the change is a trivial
>>>> 2-line-removal patch, would bring the code in sync with
>>>> newer kernel source code, and it really fixes existing code.
>>>>
>>>> I still believe that this justifies for a backport.
>>>>
>>>> Nevertheless, if you really disagree, I'm fine dropping the
>>>> backport to stable and will only push it in the next
>>>> merge window for v4.20.
>>>
>>> To clarify, you have no users of this api anywhere (hopefully), and so
>>> the patch in question prevents anyone from using the api in the future.
>>> This makes the suseconds_t handling easier for some reason because only
>>> sparc32 is a "problem" now, right?
>>>
>>> So I don't see the "bug" that is being fixed here.  I would have pushed
>>> back on the submission for this for the stable trees as well, this isn't
>>> anything that anyone is using, so there's nothing to "fix" that I can
>>> tell.
>>>
>>> Yes, doing it in the "future" is fine, to prevent anyone from making
>>> this mistake (are new machines even being made for this arch?)  But I
>>> don't see how this is a -stable issue.
>>
>> The issue here is that glibc has in theory supported 64-bit parisc
>> user space for a long time, but it has never worked because of the
>> mismatch. It is very likely that there other problems like it that
>> /also/ prevent it from working.
>>
>> Between changing kernel or glibc, I think it's clear that the glibc
>> has made the better choice of being compatible with all other
>> architectures (except sparc64), so changing the kernel is better
>> here.
>>
>> Between fixing it this late, or doing it for the next merge window,
>> I don't care. There clearly are no users that are affected by it
>> today, and if there were, this would fix an important bug, both
>> security (kernel stack information leak) and functionality
>> (improving accuracy of gettimeofday() from seconds to
>> microseconds).
>>
>> Between backporting it to stable or not, I'd be in favor of the
>> backport: If we ever want to support 64-bit user space on parisc,
>> then it's better to have stable kernels get the same working
>> ABI that new kernels have after the fix (and any other fixes we
>> may require on top). 

Ack.

>> Or to put it another way: If the argument is
>> that there won't ever be a 64-bit user space for parisc 

FYI, I was planning to try a 64-bit user space at some point.
Just see my recent patches and mails, e.g. 
b6fc0cccb6b35815a7d1cfc9279cdbfc2c61d00d
5b00ca0b8035e49ef7c466e959c5cb457a654351
and
https://www.spinics.net/lists/linux-parisc/msg09070.html

>> and we don't care about it, 

I (and a few others) do care about it.

>> then we'd be better of removing all native 64-bit
>> syscalls from arch/parisc/kernel/syscall_table.S.
> 
> Ok, then let's treat this like any other arch/driver/subsystem that we
> remove.  Drop the file(s) in a -rc1 merge window and then if anyone
> object to it later on because they really were using it, you can easily
> revert that change.

As a maintainer of this port, I object to this.
You suggest to remove a working, functional and maintained interface for no good use.
Removing it won't save lots of bytes in the executable (or source code)
but will make my life as maintainer harder.

Thanks,
Helge

> 
> We do not backport removals of drivers/subsystems/arches to stable
> kernels, so this shouldn't happen here either.
> 
> thanks,
> 
> greg k-h


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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [GIT PULL] parisc fixes for kernel v4.19
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On Thu, Oct 4, 2018 at 10:42 AM Helge Deller <deller@gmx.de> wrote:
> On 04.10.2018 01:02, gregkh wrote:
> > On Wed, Oct 03, 2018 at 09:49:08PM +0200, Arnd Bergmann wrote:
> >> On Wed, Oct 3, 2018 at 8:16 PM Greg Kroah-Hartman
> >> <gregkh@linuxfoundation.org> wrote:
> >>> On Wed, Oct 03, 2018 at 04:47:30PM +0200, Helge Deller wrote:
> >>>> On 03.10.2018 00:24, Greg Kroah-Hartman wrote:
> >>>>> On Tue, Oct 02, 2018 at 11:46:11PM +0200, Helge Deller wrote:
> >> Or to put it another way: If the argument is
> >> that there won't ever be a 64-bit user space for parisc
>
> FYI, I was planning to try a 64-bit user space at some point.
> Just see my recent patches and mails, e.g.
> b6fc0cccb6b35815a7d1cfc9279cdbfc2c61d00d
> 5b00ca0b8035e49ef7c466e959c5cb457a654351
> and
> https://www.spinics.net/lists/linux-parisc/msg09070.html
>
> >> and we don't care about it,
>
> I (and a few others) do care about it.
>
> >> then we'd be better of removing all native 64-bit
> >> syscalls from arch/parisc/kernel/syscall_table.S.
> >
> > Ok, then let's treat this like any other arch/driver/subsystem that we
> > remove.  Drop the file(s) in a -rc1 merge window and then if anyone
> > object to it later on because they really were using it, you can easily
> > revert that change.
>
> As a maintainer of this port, I object to this.
> You suggest to remove a working, functional and maintained interface for no good use.
> Removing it won't save lots of bytes in the executable (or source code)
> but will make my life as maintainer harder.

Makes sense. I was basing my thoughts on the observation that
nobody did this in the last 18 years that he port has been around,
but if you still plan to do this, then we should not regress.

What is your current estimate for how many more patches
are required to get it working reasonably well? Did you plan
to have commit 5b00ca0b8035 ("parisc: Restore possibility
to execute 64-bit applications") backported to stable kernels,
or just get it working in future versions?
I suppose we either want to backport that patch and mine,
or neither of them.

         Arnd


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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [GIT PULL] parisc fixes for kernel v4.19
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        Parisc List <linux-parisc@vger.kernel.org>,
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To: Arnd Bergmann <arnd@arndb.de>
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On 04.10.2018 15:34, Arnd Bergmann wrote:
> On Thu, Oct 4, 2018 at 10:42 AM Helge Deller <deller@gmx.de> wrote:
>> On 04.10.2018 01:02, gregkh wrote:
>>> On Wed, Oct 03, 2018 at 09:49:08PM +0200, Arnd Bergmann wrote:
>>>> On Wed, Oct 3, 2018 at 8:16 PM Greg Kroah-Hartman
>>>> <gregkh@linuxfoundation.org> wrote:
>>>>> On Wed, Oct 03, 2018 at 04:47:30PM +0200, Helge Deller wrote:
>>>>>> On 03.10.2018 00:24, Greg Kroah-Hartman wrote:
>>>>>>> On Tue, Oct 02, 2018 at 11:46:11PM +0200, Helge Deller wrote:
>>>> Or to put it another way: If the argument is
>>>> that there won't ever be a 64-bit user space for parisc
>>
>> FYI, I was planning to try a 64-bit user space at some point.
>> Just see my recent patches and mails, e.g.
>> b6fc0cccb6b35815a7d1cfc9279cdbfc2c61d00d
>> 5b00ca0b8035e49ef7c466e959c5cb457a654351
>> and
>> https://www.spinics.net/lists/linux-parisc/msg09070.html
>>
>>>> and we don't care about it,
>>
>> I (and a few others) do care about it.
>>
>>>> then we'd be better of removing all native 64-bit
>>>> syscalls from arch/parisc/kernel/syscall_table.S.
>>>
>>> Ok, then let's treat this like any other arch/driver/subsystem that we
>>> remove.  Drop the file(s) in a -rc1 merge window and then if anyone
>>> object to it later on because they really were using it, you can easily
>>> revert that change.
>>
>> As a maintainer of this port, I object to this.
>> You suggest to remove a working, functional and maintained interface for no good use.
>> Removing it won't save lots of bytes in the executable (or source code)
>> but will make my life as maintainer harder.
> 
> Makes sense. I was basing my thoughts on the observation that
> nobody did this in the last 18 years that he port has been around,
> but if you still plan to do this, then we should not regress.
> 
> What is your current estimate for how many more patches
> are required to get it working reasonably well? 

I'm not aware of missing functionality which requires additional patches
for the Linux kernel.
It's userspace which needs work, e.g. binutils needs to be fixed
to get multiple stub section support, and glibc.

> Did you plan
> to have commit 5b00ca0b8035 ("parisc: Restore possibility
> to execute 64-bit applications") backported to stable kernels,
> or just get it working in future versions?

A backport of this patch is not needed.
The patch fixes the 64-bit loader which I broke a few days before 
when I switched to the generic binfmt implementation with commit
71d577db01a5 ("parisc: Switch to generic COMPAT_BINFMT_ELF").

> I suppose we either want to backport that patch and mine,
> or neither of them.

It's only your patch which I would like to backport.

Helge


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From: Helge Deller <deller@gmx.de>
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Cc: gregkh <gregkh@linuxfoundation.org>,
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To: Arnd Bergmann <arnd@arndb.de>
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On 04.10.2018 16:30, Helge Deller wrote:
> On 04.10.2018 15:34, Arnd Bergmann wrote:
>> On Thu, Oct 4, 2018 at 10:42 AM Helge Deller <deller@gmx.de> wrote:
>>> On 04.10.2018 01:02, gregkh wrote:
>>>> On Wed, Oct 03, 2018 at 09:49:08PM +0200, Arnd Bergmann wrote:
>>>>> On Wed, Oct 3, 2018 at 8:16 PM Greg Kroah-Hartman
>>>>> <gregkh@linuxfoundation.org> wrote:
>>>>>> On Wed, Oct 03, 2018 at 04:47:30PM +0200, Helge Deller wrote:
>>>>>>> On 03.10.2018 00:24, Greg Kroah-Hartman wrote:
>>>>>>>> On Tue, Oct 02, 2018 at 11:46:11PM +0200, Helge Deller wrote:
>>>>> Or to put it another way: If the argument is
>>>>> that there won't ever be a 64-bit user space for parisc
>>>
>>> FYI, I was planning to try a 64-bit user space at some point.
>>> Just see my recent patches and mails, e.g.
>>> b6fc0cccb6b35815a7d1cfc9279cdbfc2c61d00d
>>> 5b00ca0b8035e49ef7c466e959c5cb457a654351
>>> and
>>> https://www.spinics.net/lists/linux-parisc/msg09070.html
>>>
>>>>> and we don't care about it,
>>>
>>> I (and a few others) do care about it.
>>>
>>>>> then we'd be better of removing all native 64-bit
>>>>> syscalls from arch/parisc/kernel/syscall_table.S.
>>>>
>>>> Ok, then let's treat this like any other arch/driver/subsystem that we
>>>> remove.  Drop the file(s) in a -rc1 merge window and then if anyone
>>>> object to it later on because they really were using it, you can easily
>>>> revert that change.
>>>
>>> As a maintainer of this port, I object to this.
>>> You suggest to remove a working, functional and maintained interface for no good use.
>>> Removing it won't save lots of bytes in the executable (or source code)
>>> but will make my life as maintainer harder.
>>
>> Makes sense. I was basing my thoughts on the observation that
>> nobody did this in the last 18 years that he port has been around,
>> but if you still plan to do this, then we should not regress.
>>
>> What is your current estimate for how many more patches
>> are required to get it working reasonably well? 
> 
> I'm not aware of missing functionality which requires additional patches
> for the Linux kernel.
> It's userspace which needs work, e.g. binutils needs to be fixed
> to get multiple stub section support, and glibc.
> 
>> Did you plan
>> to have commit 5b00ca0b8035 ("parisc: Restore possibility
>> to execute 64-bit applications") backported to stable kernels,
>> or just get it working in future versions?
> 
> A backport of this patch is not needed.
> The patch fixes the 64-bit loader which I broke a few days before 
> when I switched to the generic binfmt implementation with commit
> 71d577db01a5 ("parisc: Switch to generic COMPAT_BINFMT_ELF").

Actually, to be correct here, backporting my commit 5b00ca0b8035
to v4.17, v4.18 and v4.19 would be the right thing.

>> I suppose we either want to backport that patch and mine,
>> or neither of them.

Agreed. Both would be best.

Helge


From - Thu Nov 08 21:42:06 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.serial,gmane.linux.ports.parisc
Subject: [PATCH 4/5] arch/parisc, termios: use <asm-generic/termios.h>
Date: Thu,  4 Oct 2018 15:29:52 -0700
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Cc: "H. Peter Anvin (Intel)" <hpa@zytor.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Kate Stewart <kstewart@linuxfoundation.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Philippe Ombredanne <pombredanne@nexb.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-parisc@vger.kernel.org, Jiri Slaby <jslaby@suse.com>
To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
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The PARISC  definition of termbits.h is almost identical to the generic
one, so use the generic one and only redefine a handful of constants.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <linux-parisc@vger.kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
---
 arch/parisc/include/uapi/asm/termbits.h | 197 +-------------------------------
 1 file changed, 4 insertions(+), 193 deletions(-)

diff --git a/arch/parisc/include/uapi/asm/termbits.h b/arch/parisc/include/uapi/asm/termbits.h
index 40e920f8d683..28ce9067f2e0 100644
--- a/arch/parisc/include/uapi/asm/termbits.h
+++ b/arch/parisc/include/uapi/asm/termbits.h
@@ -2,201 +2,12 @@
 #ifndef __ARCH_PARISC_TERMBITS_H__
 #define __ARCH_PARISC_TERMBITS_H__
 
-#include <linux/posix_types.h>
+#include <asm-generic/termbits.h>
 
-typedef unsigned char	cc_t;
-typedef unsigned int	speed_t;
-typedef unsigned int	tcflag_t;
-
-#define NCCS 19
-struct termios {
-	tcflag_t c_iflag;		/* input mode flags */
-	tcflag_t c_oflag;		/* output mode flags */
-	tcflag_t c_cflag;		/* control mode flags */
-	tcflag_t c_lflag;		/* local mode flags */
-	cc_t c_line;			/* line discipline */
-	cc_t c_cc[NCCS];		/* control characters */
-};
-
-struct termios2 {
-	tcflag_t c_iflag;		/* input mode flags */
-	tcflag_t c_oflag;		/* output mode flags */
-	tcflag_t c_cflag;		/* control mode flags */
-	tcflag_t c_lflag;		/* local mode flags */
-	cc_t c_line;			/* line discipline */
-	cc_t c_cc[NCCS];		/* control characters */
-	speed_t c_ispeed;		/* input speed */
-	speed_t c_ospeed;		/* output speed */
-};
-
-struct ktermios {
-	tcflag_t c_iflag;		/* input mode flags */
-	tcflag_t c_oflag;		/* output mode flags */
-	tcflag_t c_cflag;		/* control mode flags */
-	tcflag_t c_lflag;		/* local mode flags */
-	cc_t c_line;			/* line discipline */
-	cc_t c_cc[NCCS];		/* control characters */
-	speed_t c_ispeed;		/* input speed */
-	speed_t c_ospeed;		/* output speed */
-};
-
-/* c_cc characters */
-#define VINTR 0
-#define VQUIT 1
-#define VERASE 2
-#define VKILL 3
-#define VEOF 4
-#define VTIME 5
-#define VMIN 6
-#define VSWTC 7
-#define VSTART 8
-#define VSTOP 9
-#define VSUSP 10
-#define VEOL 11
-#define VREPRINT 12
-#define VDISCARD 13
-#define VWERASE 14
-#define VLNEXT 15
-#define VEOL2 16
-
-
-/* c_iflag bits */
-#define IGNBRK	0000001
-#define BRKINT	0000002
-#define IGNPAR	0000004
-#define PARMRK	0000010
-#define INPCK	0000020
-#define ISTRIP	0000040
-#define INLCR	0000100
-#define IGNCR	0000200
-#define ICRNL	0000400
-#define IUCLC	0001000
-#define IXON	0002000
-#define IXANY	0004000
-#define IXOFF	0010000
+/* c_iflag bits that differ from the generic ABI */
+#undef IMAXBEL
 #define IMAXBEL	0040000
+#undef IUTF8
 #define IUTF8	0100000
 
-/* c_oflag bits */
-#define OPOST	0000001
-#define OLCUC	0000002
-#define ONLCR	0000004
-#define OCRNL	0000010
-#define ONOCR	0000020
-#define ONLRET	0000040
-#define OFILL	0000100
-#define OFDEL	0000200
-#define NLDLY	0000400
-#define   NL0	0000000
-#define   NL1	0000400
-#define CRDLY	0003000
-#define   CR0	0000000
-#define   CR1	0001000
-#define   CR2	0002000
-#define   CR3	0003000
-#define TABDLY	0014000
-#define   TAB0	0000000
-#define   TAB1	0004000
-#define   TAB2	0010000
-#define   TAB3	0014000
-#define   XTABS	0014000
-#define BSDLY	0020000
-#define   BS0	0000000
-#define   BS1	0020000
-#define VTDLY	0040000
-#define   VT0	0000000
-#define   VT1	0040000
-#define FFDLY	0100000
-#define   FF0	0000000
-#define   FF1	0100000
-
-/* c_cflag bit meaning */
-#define CBAUD   0010017
-#define  B0     0000000         /* hang up */
-#define  B50    0000001
-#define  B75    0000002
-#define  B110   0000003
-#define  B134   0000004
-#define  B150   0000005
-#define  B200   0000006
-#define  B300   0000007
-#define  B600   0000010
-#define  B1200  0000011
-#define  B1800  0000012
-#define  B2400  0000013
-#define  B4800  0000014
-#define  B9600  0000015
-#define  B19200 0000016
-#define  B38400 0000017
-#define EXTA B19200
-#define EXTB B38400
-#define CSIZE   0000060
-#define   CS5   0000000
-#define   CS6   0000020
-#define   CS7   0000040
-#define   CS8   0000060
-#define CSTOPB  0000100
-#define CREAD   0000200
-#define PARENB  0000400
-#define PARODD  0001000
-#define HUPCL   0002000
-#define CLOCAL  0004000
-#define CBAUDEX 0010000
-#define    BOTHER 0010000
-#define    B57600 0010001
-#define   B115200 0010002
-#define   B230400 0010003
-#define   B460800 0010004
-#define   B500000 0010005
-#define   B576000 0010006
-#define   B921600 0010007
-#define  B1000000 0010010
-#define  B1152000 0010011
-#define  B1500000 0010012
-#define  B2000000 0010013
-#define  B2500000 0010014
-#define  B3000000 0010015
-#define  B3500000 0010016
-#define  B4000000 0010017
-#define CIBAUD    002003600000		/* input baud rate */
-#define CMSPAR    010000000000          /* mark or space (stick) parity */
-#define CRTSCTS   020000000000          /* flow control */
-
-#define IBSHIFT	16		/* Shift from CBAUD to CIBAUD */
-
-
-/* c_lflag bits */
-#define ISIG    0000001
-#define ICANON  0000002
-#define XCASE   0000004
-#define ECHO    0000010
-#define ECHOE   0000020
-#define ECHOK   0000040
-#define ECHONL  0000100
-#define NOFLSH  0000200
-#define TOSTOP  0000400
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE  0004000
-#define FLUSHO  0010000
-#define PENDIN  0040000
-#define IEXTEN  0100000
-#define EXTPROC	0200000
-
-/* tcflow() and TCXONC use these */
-#define	TCOOFF		0
-#define	TCOON		1
-#define	TCIOFF		2
-#define	TCION		3
-
-/* tcflush() and TCFLSH use these */
-#define	TCIFLUSH	0
-#define	TCOFLUSH	1
-#define	TCIOFLUSH	2
-
-/* tcsetattr uses these */
-#define	TCSANOW		0
-#define	TCSADRAIN	1
-#define	TCSAFLUSH	2
-
 #endif
-- 
2.14.4



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From: "H. Peter Anvin (Intel)" <hpa@zytor.com>
Newsgroups: gmane.linux.kernel,gmane.linux.kernel.cross-arch,gmane.linux.serial,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc
Subject: [PATCH 0/5] termios: remove arch redundancy in <asm/termbits.h>
Date: Thu,  4 Oct 2018 15:29:48 -0700
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Cc: "H. Peter Anvin (Intel)" <hpa@zytor.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Arnd Bergmann <arnd@arndb.de>, Chris Zankel <chris@zankel.net>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Helge Deller <deller@gmx.de>, James Hogan <jhogan@kernel.org>,
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        linux-xtensa@linux-xtensa.org
To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2890559>

<asm/termbits.h> is one of those files which define an ABI. Some were
made different due to the desire to be compatible with legacy
architectures, others were mostly direct copies of the i386
definitions, which are now in asm-generic.

This folds the IA64, MIPS, PA-RISC, and Xtensa implementations into
the generic one.  IA64 and Xtensa are identical, MIPS and PA-RISC are
trivially different and just need a handful of constants redefined.

<asm-generic/termbits.h> has a few very minor adjustments to allow this.

 arch/ia64/include/uapi/asm/termbits.h   | 210 +-----------------------------
 arch/mips/include/uapi/asm/ioctls.h     |   2 +
 arch/mips/include/uapi/asm/termbits.h   | 213 ++----------------------------
 arch/parisc/include/uapi/asm/termbits.h | 197 +---------------------------
 arch/xtensa/include/uapi/asm/termbits.h | 222 +-------------------------------
 include/uapi/asm-generic/termbits.h     |   7 +-
 6 files changed, 27 insertions(+), 824 deletions(-)

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Chris Zankel <chris@zankel.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Helge Deller <deller@gmx.de>
Cc: James Hogan <jhogan@kernel.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: <linux-ia64@vger.kernel.org>
Cc: <linux-mips@linux-mips.org>
Cc: <linux-parisc@vger.kernel.org>
Cc: <linux-xtensa@linux-xtensa.org>


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From: Leonardo Bras <leobras.c@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: Re: [PATCH v3 3/7] drivers: parisc: Avoids building driver if
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        Robert Richter <rric@kernel.org>,
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> Well it's not really that persuasive.  Most people simply let the build
> run to completion, but if you have a problem with a job control 3h
> timelimit, then create a job that kills itself at 2:59 and then
> resubmits itself.  That will produce a complete build in 3h chunks
> without any need to call sub Makefiles.
>

Humm, I probably should have explained better how GitlabCI works.
It works creating a docker container that have a limited lifespan of 3h max.
After that the time is over, this container ceases to exist, leaving no build
objects, only the console log. So there is no way of 'resuming' the building
from where it stopped. I used the 'job' term because it's how they call it,
and I understand it's easily confused with bash jobs.

> All of our Makefiles are coded assuming the upper level can prevent
> descent into the lower ones.  You're proposing to change that
> assumption, requiring a fairly large patch set, which doesn't really
> seem to provide a huge benefit.
>
> James

I understand your viewpoint.
But what I propose is not to change that assumption, but instead give some
Makefiles the aditional ability to be called directly and still not build stuff
if they were not enabled in .config.

But, why these chosen Makefiles, and not all of them?
Granularity.
What I am trying to achieve with this patchset is the ability of building
smaller sets of drivers without accidentally building what is not enabled
on .config.
And, in my viewpoint, building a single drivers/DRIVERNAME is small enough to
be fast in most situations.

This change is not supposed to bother the usual way of building the kernel, and
it is not even supposed to add overhead to kernel compilation. And it would,
at least, solve my problem with the 3h limit, and enable the tool
I am building on GiltabCI to help other developers.

Thanks for reading,

Leonardo Bras


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On Thu, 4 Oct 2018, Leonardo Bras wrote:

> ... 
> But, why these chosen Makefiles, and not all of them?

I think that inconsistency is untenable. If nothing else, it means your 
changes will get broken by other people who also apply constraints 
inconsistently.

I think you need to consider what happens when you apply this regime 
tree-wide. Either that or explain why it would make sense to build e.g. 
drivers/s390 but not drivers/s390/net.

-- 


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Am 05.10.2018 um 15:16 schrieb Leonardo Bras:
>> Well it's not really that persuasive.  Most people simply let the build
>> run to completion, but if you have a problem with a job control 3h
>> timelimit, then create a job that kills itself at 2:59 and then
>> resubmits itself.  That will produce a complete build in 3h chunks
>> without any need to call sub Makefiles.
>>
>
> Humm, I probably should have explained better how GitlabCI works.
> It works creating a docker container that have a limited lifespan of 3h max.
> After that the time is over, this container ceases to exist, leaving no build
> objects, only the console log. So there is no way of 'resuming' the building
> from where it stopped. I used the 'job' term because it's how they call it,
> and I understand it's easily confused with bash jobs.
>
>> All of our Makefiles are coded assuming the upper level can prevent
>> descent into the lower ones.  You're proposing to change that
>> assumption, requiring a fairly large patch set, which doesn't really
>> seem to provide a huge benefit.
>>
>> James
>
> I understand your viewpoint.
> But what I propose is not to change that assumption, but instead give some
> Makefiles the aditional ability to be called directly and still not build stuff
> if they were not enabled in .config.
>
> But, why these chosen Makefiles, and not all of them?
> Granularity.
> What I am trying to achieve with this patchset is the ability of building
> smaller sets of drivers without accidentally building what is not enabled
> on .config.
> And, in my viewpoint, building a single drivers/DRIVERNAME is small enough to
> be fast in most situations.

That already works, doesn't it? So all that you'd need is an offline 
tool to precompute what drivers to actually build with a given config.

'make -n' with some suitable output mangling might do the job.

There may well be other ways to achieve your stated goal, without any 
need to make changes to the kernel build process (which is the result of 
many years of evolution and tuning, BTW).

> This change is not supposed to bother the usual way of building the kernel, and

Enough people have voiced their concern to warrant that you should back 
up that claim, IMO. Have you verified that your patchset does not change 
current behaviour when building the entire set of default configurations 
for each supported architecture? Does it reduce or increase overall 
complexity of the build process?

> it is not even supposed to add overhead to kernel compilation. And it would,
> at least, solve my problem with the 3h limit, and enable the tool
> I am building on GiltabCI to help other developers.

(Apropos of nothing: Am I the only one who thinks gitlab might take a 
rather dim view of your creativity in dealing with their limit?)

> Thanks for reading,
>
> Leonardo Bras

Thanks for listening!

Cheers,

	Michael


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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 1/6] parisc: move __IGNORE* entries to non uapi header
Date: Mon,  8 Oct 2018 10:46:36 +0530
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Xref: news.gmane.org gmane.linux.kernel:2892277 gmane.linux.ports.parisc:29090 gmane.linux.kernel.year-2038:3452 gmane.linux.kernel.cross-arch:47480
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All the __IGNORE* entries are resides in the uapi header
file move to non uapi header asm/unistd.h. Basically it
is not used by any user space applications.

It is correct to keep __IGNORE* entry in non uapi header
asm/unistd.h while uapi/asm/unistd.h must hold information
only useful for user space applications.

One of the patch in this patch series will generate uapi
headers that should present in the uapi header file. And
some of the information which directly used by the user
space application also need to be present in uapi file.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/include/asm/unistd.h      | 6 ++++++
 arch/parisc/include/uapi/asm/unistd.h | 7 -------
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 3d507d0..93fd9f6 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -8,6 +8,12 @@
 
 #define SYS_ify(syscall_name)   __NR_##syscall_name
 
+#define __IGNORE_select                /* newselect */
+#define __IGNORE_fadvise64             /* fadvise64_64 */
+#define __IGNORE_pkey_mprotect
+#define __IGNORE_pkey_alloc
+#define __IGNORE_pkey_free
+
 #ifndef ASM_LINE_SEP
 # define ASM_LINE_SEP ;
 #endif
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index dc77c5a..bb52e12 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -368,13 +368,6 @@
 
 #define __NR_Linux_syscalls	(__NR_io_pgetevents + 1)
 
-
-#define __IGNORE_select		/* newselect */
-#define __IGNORE_fadvise64	/* fadvise64_64 */
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
-
 #define LINUX_GATEWAY_ADDR      0x100
 
 #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */
-- 
1.9.1



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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 2/6] parisc: add __NR_Linux_syscalls along with __NR_syscalls
Date: Mon,  8 Oct 2018 10:46:37 +0530
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Xref: news.gmane.org gmane.linux.kernel:2892278 gmane.linux.ports.parisc:29091 gmane.linux.kernel.year-2038:3453 gmane.linux.kernel.cross-arch:47481
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2892278>

__NR_Linux_syscalls macro holds the number of system call
exist in PARISC architecture. This macro is currently the
part of uapi/asm/unistd.h file. We have to change the value
of __NR_Linux_syscalls, if we add or delete a system call.

One of the patch in this patch series has a script which
will generate a uapi header based on syscall.tbl file. The
syscall.tbl file contains the number of system call inform-
ation. So we have two option to update __NR_Linux_syscalls
value.

1. Update __NR_Linux_syscalls in uapi/asm/unistd.h manually
   by counting the no.of system calls. No need to update
   __NR_Linux_syscalls until we either add a new system call
   or delete an existing system call.

2. We can keep this feature it above mentioned script, that
   will count the number of syscalls and keep it in a gener-
   ated file. In this case we don't need to explicitly update
   __NR_Linux_syscalls in asm/unistd.h file.

The 2nd option will be the recommended one. For that, I moved
the __NR_Linux_syscalls macro from uapi/asm/unistd.h to asm/
unistd.h. The macro __NR_syscalls also added for making the
name convention same across all architecture. While __NR_sys-
calls isn't strictly part of the uapi, having it as part of
the generated header to simplifies the implementation. We also
need to enclose this macro with #ifdef __KERNEL__ to avoid
side effects.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/include/asm/unistd.h      | 2 ++
 arch/parisc/include/uapi/asm/unistd.h | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 93fd9f6..d30fdbcb 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -4,6 +4,8 @@
 
 #include <uapi/asm/unistd.h>
 
+#define __NR_Linux_syscalls     __NR_syscalls
+
 #ifndef __ASSEMBLY__
 
 #define SYS_ify(syscall_name)   __NR_##syscall_name
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index bb52e12..f10d065 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -366,7 +366,9 @@
 #define __NR_statx		(__NR_Linux + 349)
 #define __NR_io_pgetevents	(__NR_Linux + 350)
 
-#define __NR_Linux_syscalls	(__NR_io_pgetevents + 1)
+#ifdef __KERNEL__
+#define __NR_syscalls           351
+#endif
 
 #define LINUX_GATEWAY_ADDR      0x100
 
-- 
1.9.1



From - Thu Nov 08 21:42:07 2018
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 3/6] parisc: add system call table generation support
Date: Mon,  8 Oct 2018 10:46:38 +0530
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Approved: news@gmane.org
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Cc: y2038@lists.linaro.org, linux-kernel@vger.kernel.org,
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To: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
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        Philippe Ombredanne <pombredanne@nexb.com>,
        Kate Stewart <kstewart@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2892279>

The system call tables are in different format in all
architecture and it will be difficult to manually add or
modify the system calls in the respective files. To make
it easy by keeping a script and which'll generate the
header file and syscall table file so this change will
unify them across all architectures.

The system call table generation script is added in
syscalls directory which contain the script to generate
both uapi header file system call table generation file
and syscall.tbl file which'll be the input for the
scripts.

syscall.tbl contains the list of available system calls
along with system call number and corresponding entry point.
Add a new system call in this architecture will be possible
by adding new entry in the syscall.tbl file.

Adding a new table entry consisting of:
        - System call number.
        - ABI.
        - System call name.
        - Entry point name.
	- Compat entry name, if required.

syscallhdr.sh and syscalltbl.sh will generate uapi header-
unistd_32/64.h and syscall_table_32/64/c32.h files respect-
ively. File syscall_table_32/64/c32.h is included by sys-
call.S - the real system call table. Both .sh files will
parse the content syscall.tbl to generate the header and
table files.

ARM, s390 and x86 architecuture does have the similar support.
I leverage their implementation to come up with a generic
solution.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/kernel/syscalls/Makefile      |  55 +++++
 arch/parisc/kernel/syscalls/syscall.tbl   | 352 ++++++++++++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscallhdr.sh |  35 +++
 arch/parisc/kernel/syscalls/syscalltbl.sh |  41 ++++
 4 files changed, 483 insertions(+)
 create mode 100644 arch/parisc/kernel/syscalls/Makefile
 create mode 100644 arch/parisc/kernel/syscalls/syscall.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
 create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh

diff --git a/arch/parisc/kernel/syscalls/Makefile b/arch/parisc/kernel/syscalls/Makefile
new file mode 100644
index 0000000..e4c9c63
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/Makefile
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0
+kapi := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
+
+_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
+	  $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
+
+syscall := $(srctree)/$(src)/syscall.tbl
+syshdr := $(srctree)/$(src)/syscallhdr.sh
+systbl := $(srctree)/$(src)/syscalltbl.sh
+
+quiet_cmd_syshdr = SYSHDR  $@
+      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'  \
+		   '$(syshdr_abi_$(basetarget))'          \
+		   '$(syshdr_pfx_$(basetarget))'          \
+		   '$(syshdr_offset_$(basetarget))'
+
+quiet_cmd_systbl = SYSTBL  $@
+      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'  \
+                   '$(systbl_abi_$(basetarget))'          \
+		   '$(systbl_offset_$(basetarget))'
+
+syshdr_abi_unistd_32 := common,32
+syshdr_offset_unistd_32 := __NR_Linux
+$(uapi)/unistd_32.h: $(syscall) $(syshdr)
+	$(call if_changed,syshdr)
+
+syshdr_abi_unistd_64 := common,64
+syshdr_offset_unistd_64 := __NR_Linux
+$(uapi)/unistd_64.h: $(syscall) $(syshdr)
+	$(call if_changed,syshdr)
+
+systbl_abi_syscall_table_32 := common,32
+$(kapi)/syscall_table_32.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+systbl_abi_syscall_table_64 := common,64
+$(kapi)/syscall_table_64.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+systbl_abi_syscall_table_c32 := common,64
+$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+uapisyshdr-y			+= unistd_32.h unistd_64.h
+kapisyshdr-y			+= syscall_table_32.h     \
+                                   syscall_table_64.h     \
+                                   syscall_table_c32.h
+
+targets	+= $(uapisyshdr-y) $(kapisyshdr-y)
+
+PHONY += all
+all: $(addprefix $(uapi)/,$(uapisyshdr-y))
+all: $(addprefix $(kapi)/,$(kapisyshdr-y))
+	@:
diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
new file mode 100644
index 0000000..4e85293
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -0,0 +1,352 @@
+# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
+#
+# system call numbers and entry vectors for parisc
+#
+# The format is:
+# <number> <abi> <name> <entry point> <compat entry point>
+#
+# The <abi> can be common, 64, or 32 for this file.
+#
+0       common  restart_syscall                 sys_restart_syscall
+1       common  exit                            sys_exit
+2       common  fork                            sys_fork_wrapper
+3       common  read                            sys_read
+4       common  write                           sys_write
+5       common  open                            sys_open                        compat_sys_open
+6       common  close                           sys_close
+7       common  waitpid                         sys_waitpid
+8       common  creat                           sys_creat
+9       common  link                            sys_link
+10      common  unlink                          sys_unlink
+11      common  execve                          sys_execve                      compat_sys_execve
+12      common  chdir                           sys_chdir
+13      common  time                            sys_time                        compat_sys_time
+14      common  mknod                           sys_mknod
+15      common  chmod                           sys_chmod
+16      common  lchown                          sys_lchown
+17      common  socket                          sys_socket
+18      common  stat                            sys_newstat                     compat_sys_newstat
+19      common  lseek                           sys_lseek                       compat_sys_lseek
+20      common  getpid                          sys_getpid
+21      common  mount                           sys_mount                       compat_sys_mount
+22      common  bind                            sys_bind
+23      common  setuid                          sys_setuid
+24      common  getuid                          sys_getuid
+25      common  stime                           sys_stime                       compat_sys_stime
+26      common  ptrace                          sys_ptrace                      compat_sys_ptrace
+27      common  alarm                           sys_alarm
+28      common  fstat                           sys_newfstat                    compat_sys_newfstat
+29      common  pause                           sys_pause
+30      common  utime                           sys_utime                       compat_sys_utime
+31      common  connect                         sys_connect
+32      common  listen                          sys_listen
+33      common  access                          sys_access
+34      common  nice                            sys_nice
+35      common  accept                          sys_accept
+36      common  sync                            sys_sync
+37      common  kill                            sys_kill
+38      common  rename                          sys_rename
+39      common  mkdir                           sys_mkdir
+40      common  rmdir                           sys_rmdir
+41      common  dup                             sys_dup
+42      common  pipe                            sys_pipe
+43      common  times                           sys_times                       compat_sys_times
+44      common  getsockname                     sys_getsockname
+45      common  brk                             sys_brk
+46      common  setgid                          sys_setgid
+47      common  getgid                          sys_getgid
+48      common  signal                          sys_signal
+49      common  geteuid                         sys_geteuid
+50      common  getegid                         sys_getegid
+51      common  acct                            sys_acct
+52      common  umount2                         sys_umount
+53      common  getpeername                     sys_getpeername
+54      common  ioctl                           sys_ioctl                       compat_sys_ioctl
+55      common  fcntl                           sys_fcntl                       compat_sys_fcntl
+56      common  socketpair                      sys_socketpair
+57      common  setpgid                         sys_setpgid
+58      common  send                            sys_send
+59      common  uname                           sys_newuname
+60      common  umask                           sys_umask
+61      common  chroot                          sys_chroot
+62      common  ustat                           sys_ustat                       compat_sys_ustat
+63      common  dup2                            sys_dup2
+64      common  getppid                         sys_getppid
+65      common  getpgrp                         sys_getpgrp
+66      common  setsid                          sys_setsid
+67      common  pivot_root                      sys_pivot_root
+68      common  sgetmask                        sys_sgetmask                    sys32_unimplemented
+69      common  ssetmask                        sys_ssetmask                    sys32_unimplemented
+70      common  setreuid                        sys_setreuid
+71      common  setregid                        sys_setregid
+72      common  mincore                         sys_mincore
+73      common  sigpending                      sys_sigpending                  compat_sys_sigpending
+74      common  sethostname                     sys_sethostname
+75      common  setrlimit                       sys_setrlimit                   compat_sys_setrlimit
+76      common  getrlimit                       sys_getrlimit                   compat_sys_getrlimit
+77      common  getrusage                       sys_getrusage                   compat_sys_getrusage
+78      common  gettimeofday                    sys_gettimeofday                compat_sys_gettimeofday
+79      common  settimeofday                    sys_settimeofday                compat_sys_settimeofday
+80      common  getgroups                       sys_getgroups
+81      common  setgroups                       sys_setgroups
+82      common  sendto                          sys_sendto
+83      common  symlink                         sys_symlink
+84      common  lstat                           sys_newlstat                    compat_sys_newlstat
+85      common  readlink                        sys_readlink
+86      common  uselib                          sys_ni_syscall
+87      common  swapon                          sys_swapon
+88      common  reboot                          sys_reboot
+89      common  mmap2                           sys_mmap2
+90      common  mmap                            sys_mmap
+91      common  munmap                          sys_munmap
+92      common  truncate                        sys_truncate                    compat_sys_truncate
+93      common  ftruncate                       sys_ftruncate                   compat_sys_ftruncate
+94      common  fchmod                          sys_fchmod
+95      common  fchown                          sys_fchown
+96      common  getpriority                     sys_getpriority
+97      common  setpriority                     sys_setpriority
+98      common  recv                            sys_recv
+99      common  statfs                          sys_statfs                      compat_sys_statfs
+100     common  fstatfs                         sys_fstatfs                     compat_sys_fstatfs
+101     common  stat64                          sys_stat64
+103     common  syslog                          sys_syslog
+104     common  setitimer                       sys_setitimer                   compat_sys_setitimer
+105     common  getitimer                       sys_getitimer                   compat_sys_getitimer
+106     common  capget                          sys_capget
+107     common  capset                          sys_capset
+108     32      pread64                         parisc_pread64
+108     64      pread64                         sys_pread64                     parisc_pread64
+109     32      pwrite64                        parisc_pwrite64
+109     64      pwrite64                        sys_pwrite64                    parisc_pwrite64
+110     common  getcwd                          sys_getcwd
+111     common  vhangup                         sys_vhangup
+112     common  fstat64                         sys_fstat64
+113     common  vfork                           sys_vfork_wrapper
+114     common  wait4                           sys_wait4                       compat_sys_wait4
+115     common  swapoff                         sys_swapoff
+116     common  sysinfo                         sys_sysinfo                     compat_sys_sysinfo
+117     common  shutdown                        sys_shutdown
+118     common  fsync                           sys_fsync
+119     common  madvise                         sys_madvise
+120     common  clone                           sys_clone_wrapper
+121     common  setdomainname                   sys_setdomainname
+122     common  sendfile                        sys_sendfile                    compat_sys_sendfile
+123     common  recvfrom                        sys_recvfrom
+124     common  adjtimex                        sys_adjtimex                    compat_sys_adjtimex
+125     common  mprotect                        sys_mprotect
+126     common  sigprocmask                     sys_sigprocmask                 compat_sys_sigprocmask
+128     common  init_module                     sys_init_module
+129     common  delete_module                   sys_delete_module
+131     common  quotactl                        sys_quotactl
+132     common  getpgid                         sys_getpgid
+133     common  fchdir                          sys_fchdir
+134     common  bdflush                         sys_bdflush
+135     common  sysfs                           sys_sysfs
+136     32      personality                     parisc_personality
+136     64      personality                     sys_personality                 parisc_personality
+138     common  setfsuid                        sys_setfsuid
+139     common  setfsgid                        sys_setfsgid
+140     common  _llseek                         sys_llseek
+141     common  getdents                        sys_getdents                    compat_sys_getdents
+142     common  _newselect                      sys_select                      compat_sys_select
+143     common  flock                           sys_flock
+144     common  msync                           sys_msync
+145     common  readv                           sys_readv                       compat_sys_readv
+146     common  writev                          sys_writev                      compat_sys_writev
+147     common  getsid                          sys_getsid
+148     common  fdatasync                       sys_fdatasync
+149     common  _sysctl                         sys_sysctl                      compat_sys_sysctl
+150     common  mlock                           sys_mlock
+151     common  munlock                         sys_munlock
+152     common  mlockall                        sys_mlockall
+153     common  munlockall                      sys_munlockall
+154     common  sched_setparam                  sys_sched_setparam
+155     common  sched_getparam                  sys_sched_getparam
+156     common  sched_setscheduler              sys_sched_setscheduler
+157     common  sched_getscheduler              sys_sched_getscheduler
+158     common  sched_yield                     sys_sched_yield
+159     common  sched_get_priority_max          sys_sched_get_priority_max
+160     common  sched_get_priority_min          sys_sched_get_priority_min
+161     common  sched_rr_get_interval           sys_sched_rr_get_interval       compat_sys_sched_rr_get_interval
+162     common  nanosleep                       sys_nanosleep                   compat_sys_nanosleep
+163     common  mremap                          sys_mremap
+164     common  setresuid                       sys_setresuid
+165     common  getresuid                       sys_getresuid
+166     common  sigaltstack                     sys_sigaltstack                 compat_sys_sigaltstack
+168     common  poll                            sys_poll
+170     common  setresgid                       sys_setresgid
+171     common  getresgid                       sys_getresgid
+172     common  prctl                           sys_prctl
+173     common  rt_sigreturn                    sys_rt_sigreturn
+174     common  rt_sigaction                    sys_rt_sigaction                compat_sys_rt_sigaction
+175     common  rt_sigprocmask                  sys_rt_sigprocmask              compat_sys_rt_sigprocmask
+176     common  rt_sigpending                   sys_rt_sigpending               compat_sys_rt_sigpending
+177     common  rt_sigtimedwait                 sys_rt_sigtimedwait             compat_sys_rt_sigtimedwait
+178     common  rt_sigqueueinfo                 sys_rt_sigqueueinfo             compat_sys_rt_sigqueueinfo
+179     common  rt_sigsuspend                   sys_rt_sigsuspend               compat_sys_rt_sigsuspend
+180     common  chown                           sys_chown
+181     common  setsockopt                      sys_setsockopt                  compat_sys_setsockopt
+182     common  getsockopt                      sys_getsockopt                  compat_sys_getsockopt
+183     common  sendmsg                         sys_sendmsg                     compat_sys_sendmsg
+184     common  recvmsg                         sys_recvmsg                     compat_sys_recvmsg
+185     common  semop                           sys_semop
+186     common  semget                          sys_semget
+187     common  semctl                          sys_semctl                      compat_sys_semctl
+188     common  msgsnd                          sys_msgsnd                      compat_sys_msgsnd
+189     common  msgrcv                          sys_msgrcv                      compat_sys_msgrcv
+190     common  msgget                          sys_msgget
+191     common  msgctl                          sys_msgctl                      compat_sys_msgctl
+192     common  shmat                           sys_shmat                       compat_sys_shmat
+193     common  shmdt                           sys_shmdt
+194     common  shmget                          sys_shmget
+195     common  shmctl                          sys_shmctl                      compat_sys_shmctl
+198     common  lstat64                         sys_lstat64
+199     32      truncate64                      parisc_truncate64
+199     64      truncate64                      sys_truncate64                  parisc_truncate64
+200     32      ftruncate64                     parisc_ftruncate64
+200     64      ftruncate64                     sys_ftruncate64                 parisc_ftruncate64
+201     common  getdents64                      sys_getdents64
+202     common  fcntl64                         sys_fcntl64                     compat_sys_fcntl64
+206     common  gettid                          sys_gettid
+207     32      readahead                       parisc_readahead
+207     64      readahead                       sys_readahead                   parisc_readahead
+208     common  tkill                           sys_tkill
+209     common  sendfile64                      sys_sendfile64                  compat_sys_sendfile64
+210     common  futex                           sys_futex                       compat_sys_futex
+211     common  sched_setaffinity               sys_sched_setaffinity           compat_sys_sched_setaffinity
+212     common  sched_getaffinity               sys_sched_getaffinity           compat_sys_sched_getaffinity
+215     common  io_setup                        sys_io_setup                    compat_sys_io_setup
+216     common  io_destroy                      sys_io_destroy
+217     common  io_getevents                    sys_io_getevents                compat_sys_io_getevents
+218     common  io_submit                       sys_io_submit                   compat_sys_io_submit
+219     common  io_cancel                       sys_io_cancel
+222     common  exit_group                      sys_exit_group
+223     common  lookup_dcookie                  sys_lookup_dcookie              compat_sys_lookup_dcookie
+224     common  epoll_create                    sys_epoll_create
+225     common  epoll_ctl                       sys_epoll_ctl
+226     common  epoll_wait                      sys_epoll_wait
+227     common  remap_file_pages                sys_remap_file_pages
+228     common  semtimedop                      sys_semtimedop                  compat_sys_semtimedop
+229     common  mq_open                         sys_mq_open                     compat_sys_mq_open
+230     common  mq_unlink                       sys_mq_unlink
+231     common  mq_timedsend                    sys_mq_timedsend                compat_sys_mq_timedsend
+232     common  mq_timedreceive                 sys_mq_timedreceive             compat_sys_mq_timedreceive
+233     common  mq_notify                       sys_mq_notify                   compat_sys_mq_notify
+234     common  mq_getsetattr                   sys_mq_getsetattr               compat_sys_mq_getsetattr
+235     common  waitid                          sys_waitid                      compat_sys_waitid
+236     32      fadvise64_64                    parisc_fadvise64_64
+236     64      fadvise64_64                    sys_fadvise64_64                parisc_fadvise64_64
+237     common  set_tid_address                 sys_set_tid_address
+238     common  setxattr                        sys_setxattr
+239     common  lsetxattr                       sys_lsetxattr
+240     common  fsetxattr                       sys_fsetxattr
+241     common  getxattr                        sys_getxattr
+242     common  lgetxattr                       sys_lgetxattr
+243     common  fgetxattr                       sys_fgetxattr
+244     common  listxattr                       sys_listxattr
+245     common  llistxattr                      sys_llistxattr
+246     common  flistxattr                      sys_flistxattr
+247     common  removexattr                     sys_removexattr
+248     common  lremovexattr                    sys_lremovexattr
+249     common  fremovexattr                    sys_fremovexattr
+250     common  timer_create                    sys_timer_create                compat_sys_timer_create
+251     common  timer_settime                   sys_timer_settime               compat_sys_timer_settime
+252     common  timer_gettime                   sys_timer_gettime               compat_sys_timer_gettime
+253     common  timer_getoverrun                sys_timer_getoverrun
+254     common  timer_delete                    sys_timer_delete
+255     common  clock_settime                   sys_clock_settime               compat_sys_clock_settime
+256     common  clock_gettime                   sys_clock_gettime               compat_sys_clock_gettime
+257     common  clock_getres                    sys_clock_getres                compat_sys_clock_getres
+258     common  clock_nanosleep                 sys_clock_nanosleep             compat_sys_clock_nanosleep
+259     common  tgkill                          sys_tgkill
+260     common  mbind                           sys_mbind                       compat_sys_mbind
+261     common  get_mempolicy                   sys_get_mempolicy               compat_sys_get_mempolicy
+262     common  set_mempolicy                   sys_set_mempolicy               compat_sys_set_mempolicy
+264     common  add_key                         sys_add_key
+265     common  request_key                     sys_request_key
+266     common  keyctl                          sys_keyctl                      compat_sys_keyctl
+267     common  ioprio_set                      sys_ioprio_set
+268     common  ioprio_get                      sys_ioprio_get
+269     common  inotify_init                    sys_inotify_init
+270     common  inotify_add_watch               sys_inotify_add_watch
+271     common  inotify_rm_watch                sys_inotify_rm_watch
+272     common  migrate_pages                   sys_migrate_pages
+273     common  pselect6                        sys_pselect6                    compat_sys_pselect6
+274     common  ppoll                           sys_ppoll                       compat_sys_ppoll
+275     common  openat                          sys_openat                      compat_sys_openat
+276     common  mkdirat                         sys_mkdirat
+277     common  mknodat                         sys_mknodat
+278     common  fchownat                        sys_fchownat
+279     common  futimesat                       sys_futimesat                   compat_sys_futimesat
+280     common  fstatat64                       sys_fstatat64
+281     common  unlinkat                        sys_unlinkat
+282     common  renameat                        sys_renameat
+283     common  linkat                          sys_linkat
+284     common  symlinkat                       sys_symlinkat
+285     common  readlinkat                      sys_readlinkat
+286     common  fchmodat                        sys_fchmodat
+287     common  faccessat                       sys_faccessat
+288     common  unshare                         sys_unshare
+289     common  set_robust_list                 sys_set_robust_list             compat_sys_set_robust_list
+290     common  get_robust_list                 sys_get_robust_list             compat_sys_get_robust_list
+291     common  splice                          sys_splice
+292     32      sync_file_range                 parisc_sync_file_range
+292     64      sync_file_range                 sys_sync_file_range             parisc_sync_file_range
+293     common  tee                             sys_tee
+294     common  vmsplice                        sys_vmsplice                    compat_sys_vmsplice
+295     common  move_pages                      sys_move_pages                  compat_sys_move_pages
+296     common  getcpu                          sys_getcpu
+297     common  epoll_pwait                     sys_epoll_pwait                 compat_sys_epoll_pwait
+298     common  statfs64                        sys_statfs64                    compat_sys_statfs64
+299     common  fstatfs64                       sys_fstatfs64                   compat_sys_fstatfs64
+300     common  kexec_load                      sys_kexec_load                  compat_sys_kexec_load
+301     common  utimensat                       sys_utimensat                   compat_sys_utimensat
+302     common  signalfd                        sys_signalfd                    compat_sys_signalfd
+304     common  eventfd                         sys_eventfd
+305     32      fallocate                       parisc_fallocate
+305     64      fallocate                       sys_fallocate                   parisc_fallocate
+306     common  timerfd_create                  sys_timerfd_create
+307     common  timerfd_settime                 sys_timerfd_settime             compat_sys_timerfd_settime
+308     common  timerfd_gettime                 sys_timerfd_gettime             compat_sys_timerfd_gettime
+309     common  signalfd4                       sys_signalfd4                   compat_sys_signalfd4
+310     common  eventfd2                        sys_eventfd2
+311     common  epoll_create1                   sys_epoll_create1
+312     common  dup3                            sys_dup3
+313     common  pipe2                           sys_pipe2
+314     common  inotify_init1                   sys_inotify_init1
+315     common  preadv                          sys_preadv                      compat_sys_preadv
+316     common  pwritev                         sys_pwritev                     compat_sys_pwritev
+317     common  rt_tgsigqueueinfo               sys_rt_tgsigqueueinfo           compat_sys_rt_tgsigqueueinfo
+318     common  perf_event_open                 sys_perf_event_open
+319     common  recvmmsg                        sys_recvmmsg                    compat_sys_recvmmsg
+320     common  accept4                         sys_accept4
+321     common  prlimit64                       sys_prlimit64
+322     common  fanotify_init                   sys_fanotify_init
+323     common  fanotify_mark                   sys_fanotify_mark               sys32_fanotify_mark
+324     common  clock_adjtime                   sys_clock_adjtime               compat_sys_clock_adjtime
+325     common  name_to_handle_at               sys_name_to_handle_at
+326     common  open_by_handle_at               sys_open_by_handle_at           compat_sys_open_by_handle_at
+327     common  syncfs                          sys_syncfs
+328     common  setns                           sys_setns
+329     common  sendmmsg                        sys_sendmmsg                    compat_sys_sendmmsg
+330     common  process_vm_readv                sys_process_vm_readv            compat_sys_process_vm_readv
+331     common  process_vm_writev               sys_process_vm_writev           compat_sys_process_vm_writev
+332     common  kcmp                            sys_kcmp
+333     common  finit_module                    sys_finit_module
+334     common  sched_setattr                   sys_sched_setattr
+335     common  sched_getattr                   sys_sched_getattr
+336     common  utimes                          sys_utimes                      compat_sys_utimes
+337     common  renameat2                       sys_renameat2
+338     common  seccomp                         sys_seccomp
+339     common  getrandom                       sys_getrandom
+340     common  memfd_create                    sys_memfd_create
+341     common  bpf                             sys_bpf
+342     common  execveat                        sys_execveat                    compat_sys_execveat
+343     common  membarrier                      sys_membarrier
+344     common  userfaultfd                     sys_userfaultfd
+345     common  mlock2                          sys_mlock2
+346     common  copy_file_range                 sys_copy_file_range
+347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
+348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
+349     common  statx                           sys_statx
+350	common  io_pgetevents			sys_io_pgetevents		compat_sys_io_pgetevents
\ No newline at end of file
diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh b/arch/parisc/kernel/syscalls/syscallhdr.sh
new file mode 100644
index 0000000..607d4ca
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
@@ -0,0 +1,35 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+prefix="$4"
+offset="$5"
+
+fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+    echo "#ifndef ${fileguard}"
+    echo "#define ${fileguard}"
+    echo ""
+
+    nxt=0
+    while read nr abi name entry compat ; do
+	if [ -z "$offset" ]; then
+	    echo -e "#define __NR_${prefix}${name}\t$nr"
+	else
+	    echo -e "#define __NR_${prefix}${name}\t($offset + $nr)"
+	fi
+	nxt=$nr
+	let nxt=nxt+1
+    done
+
+    echo ""
+    echo "#ifdef __KERNEL__"
+    echo -e "#define __NR_syscalls\t$nxt"
+    echo "#endif"
+    echo ""
+    echo "#endif /* ${fileguard} */"
+) > "$out"
diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh b/arch/parisc/kernel/syscalls/syscalltbl.sh
new file mode 100644
index 0000000..82b0416
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscalltbl.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+offset="$4"
+
+emit() {
+    nxt="$1"
+    nr="$2"
+    entry="$3"
+
+    while [ $nxt -lt $nr ]; do
+	echo "__SYSCALL($nxt, sys_ni_syscall, )"
+        let nxt=nxt+1
+    done
+    echo "__SYSCALL($nr, $entry, )"
+}
+
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+    if [ -z "$offset" ]; then
+	nxt=0
+    else
+	nxt=$offset
+    fi
+
+    while read nr abi name entry compat ; do
+	if [ ${out: -5} = "c32.h" ]; then
+	    if [ -z "$compat" ]; then
+		emit $nxt $nr $entry
+	    else
+		emit $nxt $nr $compat
+	    fi
+	elif [ ${out: -4} = "64.h" -o  ${out: -4} = "32.h" ]; then
+	    emit $nxt $nr $entry
+	fi
+	nxt=$nr
+        let nxt=nxt+1
+    done
+) > "$out"
-- 
1.9.1



From - Thu Nov 08 21:42:07 2018
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X-Mozilla-Keys:                                                                                 
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 4/6] parisc: uapi header and system call table file generation
Date: Mon,  8 Oct 2018 10:46:39 +0530
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In-Reply-To: <1538975801-13735-1-git-send-email-firoz.khan@linaro.org>
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Xref: news.gmane.org gmane.linux.kernel:2892280 gmane.linux.ports.parisc:29093 gmane.linux.kernel.year-2038:3455 gmane.linux.kernel.cross-arch:47483
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2892280>

System call table generation script must be run to generate
unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
will have changes which will invokes the script.

This patch will generate unistd_32/64.h and syscall_table_
32/64/c32.h files by the syscall table generation script
invoked by arch/parisc/Makefile and the generated files against
the removed files will be identical.

The generated uapi header file will be included in uapi/asm/
unistd_32/64.h and generated system call table support file will
be included by arch/sparc/kernel/syscall_table_32/64.S file.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/Makefile                  |   4 +
 arch/parisc/include/asm/Kbuild        |   3 +
 arch/parisc/include/uapi/asm/Kbuild   |   2 +
 arch/parisc/include/uapi/asm/unistd.h | 373 +--------------------------
 arch/parisc/kernel/syscall.S          |  12 +-
 arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------
 arch/parisc/kernel/syscall_table_32.S |  13 +
 arch/parisc/kernel/syscall_table_64.S |  20 ++
 8 files changed, 50 insertions(+), 836 deletions(-)
 delete mode 100644 arch/parisc/kernel/syscall_table.S
 create mode 100644 arch/parisc/kernel/syscall_table_32.S
 create mode 100644 arch/parisc/kernel/syscall_table_64.S

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5ce0302..6b217da 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -159,6 +159,10 @@ endef
 
 # we require gcc 3.3 or above to compile the kernel
 archprepare: checkbin
+
+archheaders:
+	$(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all
+
 checkbin:
 	@if test "$(cc-version)" -lt "0303"; then \
 		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 2013d63..6b66fb9 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -23,3 +23,6 @@ generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += syscall_table_32.h
+generic-y += syscall_table_64.h
+generic-y += syscall_table_c32.h
diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
index 286ef5a..04360d9 100644
--- a/arch/parisc/include/uapi/asm/Kbuild
+++ b/arch/parisc/include/uapi/asm/Kbuild
@@ -7,3 +7,5 @@ generic-y += kvm_para.h
 generic-y += param.h
 generic-y += poll.h
 generic-y += resource.h
+generic-y += unistd_32.h
+generic-y += unistd_64.h
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index f10d065..76e3a3b 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -2,374 +2,13 @@
 #ifndef _UAPI_ASM_PARISC_UNISTD_H_
 #define _UAPI_ASM_PARISC_UNISTD_H_
 
-/*
- * Linux system call numbers.
- *
- * Cary Coutant says that we should just use another syscall gateway
- * page to avoid clashing with the HPUX space, and I think he's right:
- * it will would keep a branch out of our syscall entry path, at the
- * very least.  If we decide to change it later, we can ``just'' tweak
- * the LINUX_GATEWAY_ADDR define at the bottom and make __NR_Linux be
- * 1024 or something.  Oh, and recompile libc. =)
- */
-
-#define __NR_Linux                0
-#define __NR_restart_syscall      (__NR_Linux + 0)
-#define __NR_exit                 (__NR_Linux + 1)
-#define __NR_fork                 (__NR_Linux + 2)
-#define __NR_read                 (__NR_Linux + 3)
-#define __NR_write                (__NR_Linux + 4)
-#define __NR_open                 (__NR_Linux + 5)
-#define __NR_close                (__NR_Linux + 6)
-#define __NR_waitpid              (__NR_Linux + 7)
-#define __NR_creat                (__NR_Linux + 8)
-#define __NR_link                 (__NR_Linux + 9)
-#define __NR_unlink              (__NR_Linux + 10)
-#define __NR_execve              (__NR_Linux + 11)
-#define __NR_chdir               (__NR_Linux + 12)
-#define __NR_time                (__NR_Linux + 13)
-#define __NR_mknod               (__NR_Linux + 14)
-#define __NR_chmod               (__NR_Linux + 15)
-#define __NR_lchown              (__NR_Linux + 16)
-#define __NR_socket              (__NR_Linux + 17)
-#define __NR_stat                (__NR_Linux + 18)
-#define __NR_lseek               (__NR_Linux + 19)
-#define __NR_getpid              (__NR_Linux + 20)
-#define __NR_mount               (__NR_Linux + 21)
-#define __NR_bind                (__NR_Linux + 22)
-#define __NR_setuid              (__NR_Linux + 23)
-#define __NR_getuid              (__NR_Linux + 24)
-#define __NR_stime               (__NR_Linux + 25)
-#define __NR_ptrace              (__NR_Linux + 26)
-#define __NR_alarm               (__NR_Linux + 27)
-#define __NR_fstat               (__NR_Linux + 28)
-#define __NR_pause               (__NR_Linux + 29)
-#define __NR_utime               (__NR_Linux + 30)
-#define __NR_connect             (__NR_Linux + 31)
-#define __NR_listen              (__NR_Linux + 32)
-#define __NR_access              (__NR_Linux + 33)
-#define __NR_nice                (__NR_Linux + 34)
-#define __NR_accept              (__NR_Linux + 35)
-#define __NR_sync                (__NR_Linux + 36)
-#define __NR_kill                (__NR_Linux + 37)
-#define __NR_rename              (__NR_Linux + 38)
-#define __NR_mkdir               (__NR_Linux + 39)
-#define __NR_rmdir               (__NR_Linux + 40)
-#define __NR_dup                 (__NR_Linux + 41)
-#define __NR_pipe                (__NR_Linux + 42)
-#define __NR_times               (__NR_Linux + 43)
-#define __NR_getsockname         (__NR_Linux + 44)
-#define __NR_brk                 (__NR_Linux + 45)
-#define __NR_setgid              (__NR_Linux + 46)
-#define __NR_getgid              (__NR_Linux + 47)
-#define __NR_signal              (__NR_Linux + 48)
-#define __NR_geteuid             (__NR_Linux + 49)
-#define __NR_getegid             (__NR_Linux + 50)
-#define __NR_acct                (__NR_Linux + 51)
-#define __NR_umount2             (__NR_Linux + 52)
-#define __NR_getpeername         (__NR_Linux + 53)
-#define __NR_ioctl               (__NR_Linux + 54)
-#define __NR_fcntl               (__NR_Linux + 55)
-#define __NR_socketpair          (__NR_Linux + 56)
-#define __NR_setpgid             (__NR_Linux + 57)
-#define __NR_send                (__NR_Linux + 58)
-#define __NR_uname               (__NR_Linux + 59)
-#define __NR_umask               (__NR_Linux + 60)
-#define __NR_chroot              (__NR_Linux + 61)
-#define __NR_ustat               (__NR_Linux + 62)
-#define __NR_dup2                (__NR_Linux + 63)
-#define __NR_getppid             (__NR_Linux + 64)
-#define __NR_getpgrp             (__NR_Linux + 65)
-#define __NR_setsid              (__NR_Linux + 66)
-#define __NR_pivot_root          (__NR_Linux + 67)
-#define __NR_sgetmask            (__NR_Linux + 68)
-#define __NR_ssetmask            (__NR_Linux + 69)
-#define __NR_setreuid            (__NR_Linux + 70)
-#define __NR_setregid            (__NR_Linux + 71)
-#define __NR_mincore             (__NR_Linux + 72)
-#define __NR_sigpending          (__NR_Linux + 73)
-#define __NR_sethostname         (__NR_Linux + 74)
-#define __NR_setrlimit           (__NR_Linux + 75)
-#define __NR_getrlimit           (__NR_Linux + 76)
-#define __NR_getrusage           (__NR_Linux + 77)
-#define __NR_gettimeofday        (__NR_Linux + 78)
-#define __NR_settimeofday        (__NR_Linux + 79)
-#define __NR_getgroups           (__NR_Linux + 80)
-#define __NR_setgroups           (__NR_Linux + 81)
-#define __NR_sendto              (__NR_Linux + 82)
-#define __NR_symlink             (__NR_Linux + 83)
-#define __NR_lstat               (__NR_Linux + 84)
-#define __NR_readlink            (__NR_Linux + 85)
-#define __NR_uselib              (__NR_Linux + 86)
-#define __NR_swapon              (__NR_Linux + 87)
-#define __NR_reboot              (__NR_Linux + 88)
-#define __NR_mmap2               (__NR_Linux + 89)
-#define __NR_mmap                (__NR_Linux + 90)
-#define __NR_munmap              (__NR_Linux + 91)
-#define __NR_truncate            (__NR_Linux + 92)
-#define __NR_ftruncate           (__NR_Linux + 93)
-#define __NR_fchmod              (__NR_Linux + 94)
-#define __NR_fchown              (__NR_Linux + 95)
-#define __NR_getpriority         (__NR_Linux + 96)
-#define __NR_setpriority         (__NR_Linux + 97)
-#define __NR_recv                (__NR_Linux + 98)
-#define __NR_statfs              (__NR_Linux + 99)
-#define __NR_fstatfs            (__NR_Linux + 100)
-#define __NR_stat64             (__NR_Linux + 101)
-/* #define __NR_socketcall         (__NR_Linux + 102) */
-#define __NR_syslog             (__NR_Linux + 103)
-#define __NR_setitimer          (__NR_Linux + 104)
-#define __NR_getitimer          (__NR_Linux + 105)
-#define __NR_capget             (__NR_Linux + 106)
-#define __NR_capset             (__NR_Linux + 107)
-#define __NR_pread64            (__NR_Linux + 108)
-#define __NR_pwrite64           (__NR_Linux + 109)
-#define __NR_getcwd             (__NR_Linux + 110)
-#define __NR_vhangup            (__NR_Linux + 111)
-#define __NR_fstat64            (__NR_Linux + 112)
-#define __NR_vfork              (__NR_Linux + 113)
-#define __NR_wait4              (__NR_Linux + 114)
-#define __NR_swapoff            (__NR_Linux + 115)
-#define __NR_sysinfo            (__NR_Linux + 116)
-#define __NR_shutdown           (__NR_Linux + 117)
-#define __NR_fsync              (__NR_Linux + 118)
-#define __NR_madvise            (__NR_Linux + 119)
-#define __NR_clone              (__NR_Linux + 120)
-#define __NR_setdomainname      (__NR_Linux + 121)
-#define __NR_sendfile           (__NR_Linux + 122)
-#define __NR_recvfrom           (__NR_Linux + 123)
-#define __NR_adjtimex           (__NR_Linux + 124)
-#define __NR_mprotect           (__NR_Linux + 125)
-#define __NR_sigprocmask        (__NR_Linux + 126)
-#define __NR_create_module      (__NR_Linux + 127) /* not used */
-#define __NR_init_module        (__NR_Linux + 128)
-#define __NR_delete_module      (__NR_Linux + 129)
-#define __NR_get_kernel_syms    (__NR_Linux + 130) /* not used */
-#define __NR_quotactl           (__NR_Linux + 131)
-#define __NR_getpgid            (__NR_Linux + 132)
-#define __NR_fchdir             (__NR_Linux + 133)
-#define __NR_bdflush            (__NR_Linux + 134)
-#define __NR_sysfs              (__NR_Linux + 135)
-#define __NR_personality        (__NR_Linux + 136)
-#define __NR_afs_syscall        (__NR_Linux + 137) /* not used */
-#define __NR_setfsuid           (__NR_Linux + 138)
-#define __NR_setfsgid           (__NR_Linux + 139)
-#define __NR__llseek            (__NR_Linux + 140)
-#define __NR_getdents           (__NR_Linux + 141)
-#define __NR__newselect         (__NR_Linux + 142)
-#define __NR_flock              (__NR_Linux + 143)
-#define __NR_msync              (__NR_Linux + 144)
-#define __NR_readv              (__NR_Linux + 145)
-#define __NR_writev             (__NR_Linux + 146)
-#define __NR_getsid             (__NR_Linux + 147)
-#define __NR_fdatasync          (__NR_Linux + 148)
-#define __NR__sysctl            (__NR_Linux + 149)
-#define __NR_mlock              (__NR_Linux + 150)
-#define __NR_munlock            (__NR_Linux + 151)
-#define __NR_mlockall           (__NR_Linux + 152)
-#define __NR_munlockall         (__NR_Linux + 153)
-#define __NR_sched_setparam             (__NR_Linux + 154)
-#define __NR_sched_getparam             (__NR_Linux + 155)
-#define __NR_sched_setscheduler         (__NR_Linux + 156)
-#define __NR_sched_getscheduler         (__NR_Linux + 157)
-#define __NR_sched_yield                (__NR_Linux + 158)
-#define __NR_sched_get_priority_max     (__NR_Linux + 159)
-#define __NR_sched_get_priority_min     (__NR_Linux + 160)
-#define __NR_sched_rr_get_interval      (__NR_Linux + 161)
-#define __NR_nanosleep          (__NR_Linux + 162)
-#define __NR_mremap             (__NR_Linux + 163)
-#define __NR_setresuid          (__NR_Linux + 164)
-#define __NR_getresuid          (__NR_Linux + 165)
-#define __NR_sigaltstack        (__NR_Linux + 166)
-#define __NR_query_module       (__NR_Linux + 167) /* not used */
-#define __NR_poll               (__NR_Linux + 168)
-#define __NR_nfsservctl         (__NR_Linux + 169) /* not used */
-#define __NR_setresgid          (__NR_Linux + 170)
-#define __NR_getresgid          (__NR_Linux + 171)
-#define __NR_prctl              (__NR_Linux + 172)
-#define __NR_rt_sigreturn       (__NR_Linux + 173)
-#define __NR_rt_sigaction       (__NR_Linux + 174)
-#define __NR_rt_sigprocmask     (__NR_Linux + 175)
-#define __NR_rt_sigpending      (__NR_Linux + 176)
-#define __NR_rt_sigtimedwait    (__NR_Linux + 177)
-#define __NR_rt_sigqueueinfo    (__NR_Linux + 178)
-#define __NR_rt_sigsuspend      (__NR_Linux + 179)
-#define __NR_chown              (__NR_Linux + 180)
-#define __NR_setsockopt         (__NR_Linux + 181)
-#define __NR_getsockopt         (__NR_Linux + 182)
-#define __NR_sendmsg            (__NR_Linux + 183)
-#define __NR_recvmsg            (__NR_Linux + 184)
-#define __NR_semop              (__NR_Linux + 185)
-#define __NR_semget             (__NR_Linux + 186)
-#define __NR_semctl             (__NR_Linux + 187)
-#define __NR_msgsnd             (__NR_Linux + 188)
-#define __NR_msgrcv             (__NR_Linux + 189)
-#define __NR_msgget             (__NR_Linux + 190)
-#define __NR_msgctl             (__NR_Linux + 191)
-#define __NR_shmat              (__NR_Linux + 192)
-#define __NR_shmdt              (__NR_Linux + 193)
-#define __NR_shmget             (__NR_Linux + 194)
-#define __NR_shmctl             (__NR_Linux + 195)
-#define __NR_getpmsg            (__NR_Linux + 196) /* not used */
-#define __NR_putpmsg            (__NR_Linux + 197) /* not used */
-#define __NR_lstat64            (__NR_Linux + 198)
-#define __NR_truncate64         (__NR_Linux + 199)
-#define __NR_ftruncate64        (__NR_Linux + 200)
-#define __NR_getdents64         (__NR_Linux + 201)
-#define __NR_fcntl64            (__NR_Linux + 202)
-#define __NR_attrctl            (__NR_Linux + 203) /* not used */
-#define __NR_acl_get            (__NR_Linux + 204) /* not used */
-#define __NR_acl_set            (__NR_Linux + 205) /* not used */
-#define __NR_gettid             (__NR_Linux + 206)
-#define __NR_readahead          (__NR_Linux + 207)
-#define __NR_tkill              (__NR_Linux + 208)
-#define __NR_sendfile64         (__NR_Linux + 209)
-#define __NR_futex              (__NR_Linux + 210)
-#define __NR_sched_setaffinity  (__NR_Linux + 211)
-#define __NR_sched_getaffinity  (__NR_Linux + 212)
-#define __NR_set_thread_area    (__NR_Linux + 213) /* not used */
-#define __NR_get_thread_area    (__NR_Linux + 214) /* not used */
-#define __NR_io_setup           (__NR_Linux + 215)
-#define __NR_io_destroy         (__NR_Linux + 216)
-#define __NR_io_getevents       (__NR_Linux + 217)
-#define __NR_io_submit          (__NR_Linux + 218)
-#define __NR_io_cancel          (__NR_Linux + 219)
-#define __NR_alloc_hugepages    (__NR_Linux + 220) /* not used */
-#define __NR_free_hugepages     (__NR_Linux + 221) /* not used */
-#define __NR_exit_group         (__NR_Linux + 222)
-#define __NR_lookup_dcookie     (__NR_Linux + 223)
-#define __NR_epoll_create       (__NR_Linux + 224)
-#define __NR_epoll_ctl          (__NR_Linux + 225)
-#define __NR_epoll_wait         (__NR_Linux + 226)
-#define __NR_remap_file_pages   (__NR_Linux + 227)
-#define __NR_semtimedop         (__NR_Linux + 228)
-#define __NR_mq_open            (__NR_Linux + 229)
-#define __NR_mq_unlink          (__NR_Linux + 230)
-#define __NR_mq_timedsend       (__NR_Linux + 231)
-#define __NR_mq_timedreceive    (__NR_Linux + 232)
-#define __NR_mq_notify          (__NR_Linux + 233)
-#define __NR_mq_getsetattr      (__NR_Linux + 234)
-#define __NR_waitid		(__NR_Linux + 235)
-#define __NR_fadvise64_64	(__NR_Linux + 236)
-#define __NR_set_tid_address	(__NR_Linux + 237)
-#define __NR_setxattr		(__NR_Linux + 238)
-#define __NR_lsetxattr		(__NR_Linux + 239)
-#define __NR_fsetxattr		(__NR_Linux + 240)
-#define __NR_getxattr		(__NR_Linux + 241)
-#define __NR_lgetxattr		(__NR_Linux + 242)
-#define __NR_fgetxattr		(__NR_Linux + 243)
-#define __NR_listxattr		(__NR_Linux + 244)
-#define __NR_llistxattr		(__NR_Linux + 245)
-#define __NR_flistxattr		(__NR_Linux + 246)
-#define __NR_removexattr	(__NR_Linux + 247)
-#define __NR_lremovexattr	(__NR_Linux + 248)
-#define __NR_fremovexattr	(__NR_Linux + 249)
-#define __NR_timer_create	(__NR_Linux + 250)
-#define __NR_timer_settime	(__NR_Linux + 251)
-#define __NR_timer_gettime	(__NR_Linux + 252)
-#define __NR_timer_getoverrun	(__NR_Linux + 253)
-#define __NR_timer_delete	(__NR_Linux + 254)
-#define __NR_clock_settime	(__NR_Linux + 255)
-#define __NR_clock_gettime	(__NR_Linux + 256)
-#define __NR_clock_getres	(__NR_Linux + 257)
-#define __NR_clock_nanosleep	(__NR_Linux + 258)
-#define __NR_tgkill		(__NR_Linux + 259)
-#define __NR_mbind		(__NR_Linux + 260)
-#define __NR_get_mempolicy	(__NR_Linux + 261)
-#define __NR_set_mempolicy	(__NR_Linux + 262)
-#define __NR_vserver		(__NR_Linux + 263) /* not used */
-#define __NR_add_key		(__NR_Linux + 264)
-#define __NR_request_key	(__NR_Linux + 265)
-#define __NR_keyctl		(__NR_Linux + 266)
-#define __NR_ioprio_set		(__NR_Linux + 267)
-#define __NR_ioprio_get		(__NR_Linux + 268)
-#define __NR_inotify_init	(__NR_Linux + 269)
-#define __NR_inotify_add_watch	(__NR_Linux + 270)
-#define __NR_inotify_rm_watch	(__NR_Linux + 271)
-#define __NR_migrate_pages	(__NR_Linux + 272)
-#define __NR_pselect6		(__NR_Linux + 273)
-#define __NR_ppoll		(__NR_Linux + 274)
-#define __NR_openat		(__NR_Linux + 275)
-#define __NR_mkdirat		(__NR_Linux + 276)
-#define __NR_mknodat		(__NR_Linux + 277)
-#define __NR_fchownat		(__NR_Linux + 278)
-#define __NR_futimesat		(__NR_Linux + 279)
-#define __NR_fstatat64		(__NR_Linux + 280)
-#define __NR_unlinkat		(__NR_Linux + 281)
-#define __NR_renameat		(__NR_Linux + 282)
-#define __NR_linkat		(__NR_Linux + 283)
-#define __NR_symlinkat		(__NR_Linux + 284)
-#define __NR_readlinkat		(__NR_Linux + 285)
-#define __NR_fchmodat		(__NR_Linux + 286)
-#define __NR_faccessat		(__NR_Linux + 287)
-#define __NR_unshare		(__NR_Linux + 288)
-#define __NR_set_robust_list	(__NR_Linux + 289)
-#define __NR_get_robust_list	(__NR_Linux + 290)
-#define __NR_splice		(__NR_Linux + 291)
-#define __NR_sync_file_range	(__NR_Linux + 292)
-#define __NR_tee		(__NR_Linux + 293)
-#define __NR_vmsplice		(__NR_Linux + 294)
-#define __NR_move_pages		(__NR_Linux + 295)
-#define __NR_getcpu		(__NR_Linux + 296)
-#define __NR_epoll_pwait	(__NR_Linux + 297)
-#define __NR_statfs64		(__NR_Linux + 298)
-#define __NR_fstatfs64		(__NR_Linux + 299)
-#define __NR_kexec_load		(__NR_Linux + 300)
-#define __NR_utimensat		(__NR_Linux + 301)
-#define __NR_signalfd		(__NR_Linux + 302)
-#define __NR_timerfd		(__NR_Linux + 303) /* not used */
-#define __NR_eventfd		(__NR_Linux + 304)
-#define __NR_fallocate		(__NR_Linux + 305)
-#define __NR_timerfd_create	(__NR_Linux + 306)
-#define __NR_timerfd_settime	(__NR_Linux + 307)
-#define __NR_timerfd_gettime	(__NR_Linux + 308)
-#define __NR_signalfd4		(__NR_Linux + 309)
-#define __NR_eventfd2		(__NR_Linux + 310)
-#define __NR_epoll_create1	(__NR_Linux + 311)
-#define __NR_dup3		(__NR_Linux + 312)
-#define __NR_pipe2		(__NR_Linux + 313)
-#define __NR_inotify_init1	(__NR_Linux + 314)
-#define __NR_preadv		(__NR_Linux + 315)
-#define __NR_pwritev		(__NR_Linux + 316)
-#define __NR_rt_tgsigqueueinfo	(__NR_Linux + 317)
-#define __NR_perf_event_open	(__NR_Linux + 318)
-#define __NR_recvmmsg		(__NR_Linux + 319)
-#define __NR_accept4		(__NR_Linux + 320)
-#define __NR_prlimit64		(__NR_Linux + 321)
-#define __NR_fanotify_init	(__NR_Linux + 322)
-#define __NR_fanotify_mark	(__NR_Linux + 323)
-#define __NR_clock_adjtime	(__NR_Linux + 324)
-#define __NR_name_to_handle_at	(__NR_Linux + 325)
-#define __NR_open_by_handle_at	(__NR_Linux + 326)
-#define __NR_syncfs		(__NR_Linux + 327)
-#define __NR_setns		(__NR_Linux + 328)
-#define __NR_sendmmsg		(__NR_Linux + 329)
-#define __NR_process_vm_readv	(__NR_Linux + 330)
-#define __NR_process_vm_writev	(__NR_Linux + 331)
-#define __NR_kcmp		(__NR_Linux + 332)
-#define __NR_finit_module	(__NR_Linux + 333)
-#define __NR_sched_setattr	(__NR_Linux + 334)
-#define __NR_sched_getattr	(__NR_Linux + 335)
-#define __NR_utimes		(__NR_Linux + 336)
-#define __NR_renameat2		(__NR_Linux + 337)
-#define __NR_seccomp		(__NR_Linux + 338)
-#define __NR_getrandom		(__NR_Linux + 339)
-#define __NR_memfd_create	(__NR_Linux + 340)
-#define __NR_bpf		(__NR_Linux + 341)
-#define __NR_execveat		(__NR_Linux + 342)
-#define __NR_membarrier		(__NR_Linux + 343)
-#define __NR_userfaultfd	(__NR_Linux + 344)
-#define __NR_mlock2		(__NR_Linux + 345)
-#define __NR_copy_file_range	(__NR_Linux + 346)
-#define __NR_preadv2		(__NR_Linux + 347)
-#define __NR_pwritev2		(__NR_Linux + 348)
-#define __NR_statx		(__NR_Linux + 349)
-#define __NR_io_pgetevents	(__NR_Linux + 350)
-
-#ifdef __KERNEL__
-#define __NR_syscalls           351
+#define __NR_Linux           0
+#ifdef CONFIG_64BIT
+#include <asm/unistd_64.h>
+#else
+#include <asm/unistd_32.h>
 #endif
 
-#define LINUX_GATEWAY_ADDR      0x100
+#define LINUX_GATEWAY_ADDR   0x100
 
 #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f453997..2523b83 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -923,18 +923,10 @@ ENTRY(lws_table)
 END(lws_table)
 	/* End of lws table */
 
-	.align 8
-ENTRY(sys_call_table)
-	.export sys_call_table,data
-#include "syscall_table.S"
-END(sys_call_table)
-
+#include "syscall_table_32.S"
 #ifdef CONFIG_64BIT
-	.align 8
-ENTRY(sys_call_table64)
 #define SYSCALL_TABLE_64BIT
-#include "syscall_table.S"
-END(sys_call_table64)
+#include "syscall_table_64.S"
 #endif
 
 	/*
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
deleted file mode 100644
index fe3f2a4..0000000
--- a/arch/parisc/kernel/syscall_table.S
+++ /dev/null
@@ -1,459 +0,0 @@
-/*    System Call Table
- *
- *    Copyright (C) 1999-2004 Matthew Wilcox <willy at parisc-linux.org>
- *    Copyright (C) 2000-2001 John Marvin <jsm at parisc-linux.org>
- *    Copyright (C) 2000 Alan Modra <amodra at parisc-linux.org>
- *    Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
- *    Copyright (C) 2000 Philipp Rumpf <prumpf with tux.org>
- *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
- *    Copyright (C) 2000 David Huggins-Daines <dhd with pobox.org>
- *    Copyright (C) 2000 Grant Grundler <grundler at parisc-linux.org>
- *    Copyright (C) 2001 Richard Hirst <rhirst with parisc-linux.org>
- *    Copyright (C) 2001-2002 Ryan Bradetich <rbrad at parisc-linux.org>
- *    Copyright (C) 2001-2007 Helge Deller <deller at parisc-linux.org>
- *    Copyright (C) 2000-2001 Thomas Bogendoerfer <tsbogend at parisc-linux.org>
- *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
- *    Copyright (C) 2005-2006 Kyle McMartin <kyle at parisc-linux.org>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#if defined(CONFIG_64BIT) && !defined(SYSCALL_TABLE_64BIT)
-/* Use ENTRY_SAME for 32-bit syscalls which are the same on wide and
- * narrow palinux.  Use ENTRY_DIFF for those where a 32-bit specific
- * implementation is required on wide palinux.  Use ENTRY_COMP where
- * the compatibility layer has a useful 32-bit implementation.
- */
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys32_##_name_
-#define ENTRY_UHOH(_name_) .dword sys32_##unimplemented
-#define ENTRY_OURS(_name_) .dword parisc_##_name_
-#define ENTRY_COMP(_name_) .dword compat_sys_##_name_
-#elif defined(CONFIG_64BIT) && defined(SYSCALL_TABLE_64BIT)
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys_##_name_
-#define ENTRY_UHOH(_name_) .dword sys_##_name_
-#define ENTRY_OURS(_name_) .dword sys_##_name_
-#define ENTRY_COMP(_name_) .dword sys_##_name_
-#else
-#define ENTRY_SAME(_name_) .word sys_##_name_
-#define ENTRY_DIFF(_name_) .word sys_##_name_
-#define ENTRY_UHOH(_name_) .word sys_##_name_
-#define ENTRY_OURS(_name_) .word parisc_##_name_
-#define ENTRY_COMP(_name_) .word sys_##_name_
-#endif
-
-90:	ENTRY_SAME(restart_syscall)	/* 0 */
-91:	ENTRY_SAME(exit)
-	ENTRY_SAME(fork_wrapper)
-	ENTRY_SAME(read)
-	ENTRY_SAME(write)
-	ENTRY_COMP(open)		/* 5 */
-	ENTRY_SAME(close)
-	ENTRY_SAME(waitpid)
-	ENTRY_SAME(creat)
-	ENTRY_SAME(link)
-	ENTRY_SAME(unlink)		/* 10 */
-	ENTRY_COMP(execve)
-	ENTRY_SAME(chdir)
-	/* See comments in kernel/time.c!!! Maybe we don't need this? */
-	ENTRY_COMP(time)
-	ENTRY_SAME(mknod)
-	ENTRY_SAME(chmod)		/* 15 */
-	ENTRY_SAME(lchown)
-	ENTRY_SAME(socket)
-	/* struct stat is MAYBE identical wide and narrow ?? */
-	ENTRY_COMP(newstat)
-	ENTRY_COMP(lseek)
-	ENTRY_SAME(getpid)		/* 20 */
-	/* the 'void * data' parameter may need re-packing in wide */
-	ENTRY_COMP(mount)
-	/* concerned about struct sockaddr in wide/narrow */
-	/* ---> I think sockaddr is OK unless the compiler packs the struct */
-	/*      differently to align the char array */
-	ENTRY_SAME(bind)
-	ENTRY_SAME(setuid)
-	ENTRY_SAME(getuid)
-	ENTRY_COMP(stime)		/* 25 */
-	ENTRY_COMP(ptrace)
-	ENTRY_SAME(alarm)
-	/* see stat comment */
-	ENTRY_COMP(newfstat)
-	ENTRY_SAME(pause)
-	/* struct utimbuf uses time_t which might vary */
-	ENTRY_COMP(utime)		/* 30 */
-	/* struct sockaddr... */
-	ENTRY_SAME(connect)
-	ENTRY_SAME(listen)
-	ENTRY_SAME(access)
-	ENTRY_SAME(nice)
-	/* struct sockaddr... */
-	ENTRY_SAME(accept)		/* 35 */
-	ENTRY_SAME(sync)
-	ENTRY_SAME(kill)
-	ENTRY_SAME(rename)
-	ENTRY_SAME(mkdir)
-	ENTRY_SAME(rmdir)		/* 40 */
-	ENTRY_SAME(dup)
-	ENTRY_SAME(pipe)
-	ENTRY_COMP(times)
-	/* struct sockaddr... */
-	ENTRY_SAME(getsockname)
-	/* it seems possible brk() could return a >4G pointer... */
-	ENTRY_SAME(brk)			/* 45 */
-	ENTRY_SAME(setgid)
-	ENTRY_SAME(getgid)
-	ENTRY_SAME(signal)
-	ENTRY_SAME(geteuid)
-	ENTRY_SAME(getegid)		/* 50 */
-	ENTRY_SAME(acct)
-	ENTRY_SAME(umount)
-	/* struct sockaddr... */
-	ENTRY_SAME(getpeername)
-	ENTRY_COMP(ioctl)
-	ENTRY_COMP(fcntl)		/* 55 */
-	ENTRY_SAME(socketpair)
-	ENTRY_SAME(setpgid)
-	ENTRY_SAME(send)
-	ENTRY_SAME(newuname)
-	ENTRY_SAME(umask)		/* 60 */
-	ENTRY_SAME(chroot)
-	ENTRY_COMP(ustat)
-	ENTRY_SAME(dup2)
-	ENTRY_SAME(getppid)
-	ENTRY_SAME(getpgrp)		/* 65 */
-	ENTRY_SAME(setsid)
-	ENTRY_SAME(pivot_root)
-	/* I don't like this */
-	ENTRY_UHOH(sgetmask)
-	ENTRY_UHOH(ssetmask)
-	ENTRY_SAME(setreuid)		/* 70 */
-	ENTRY_SAME(setregid)
-	ENTRY_SAME(mincore)
-	ENTRY_COMP(sigpending)
-	ENTRY_SAME(sethostname)
-	/* Following 3 have linux-common-code structs containing longs -( */
-	ENTRY_COMP(setrlimit)		/* 75 */
-	ENTRY_COMP(getrlimit)
-	ENTRY_COMP(getrusage)
-	/* struct timeval and timezone are maybe?? consistent wide and narrow */
-	ENTRY_COMP(gettimeofday)
-	ENTRY_COMP(settimeofday)
-	ENTRY_SAME(getgroups)		/* 80 */
-	ENTRY_SAME(setgroups)
-	/* struct socketaddr... */
-	ENTRY_SAME(sendto)
-	ENTRY_SAME(symlink)
-	/* see stat comment */
-	ENTRY_COMP(newlstat)
-	ENTRY_SAME(readlink)		/* 85 */
-	ENTRY_SAME(ni_syscall)	/* was uselib */
-	ENTRY_SAME(swapon)
-	ENTRY_SAME(reboot)
-	ENTRY_SAME(mmap2)
-	ENTRY_SAME(mmap)		/* 90 */
-	ENTRY_SAME(munmap)
-	ENTRY_COMP(truncate)
-	ENTRY_COMP(ftruncate)
-	ENTRY_SAME(fchmod)
-	ENTRY_SAME(fchown)		/* 95 */
-	ENTRY_SAME(getpriority)
-	ENTRY_SAME(setpriority)
-	ENTRY_SAME(recv)
-	ENTRY_COMP(statfs)
-	ENTRY_COMP(fstatfs)		/* 100 */
-	ENTRY_SAME(stat64)
-	ENTRY_SAME(ni_syscall)	/* was socketcall */
-	ENTRY_SAME(syslog)
-	/* even though manpage says struct timeval contains longs, ours has
-	 * time_t and suseconds_t -- both of which are safe wide/narrow */
-	ENTRY_COMP(setitimer)
-	ENTRY_COMP(getitimer)		/* 105 */
-	ENTRY_SAME(capget)
-	ENTRY_SAME(capset)
-	ENTRY_OURS(pread64)
-	ENTRY_OURS(pwrite64)
-	ENTRY_SAME(getcwd)		/* 110 */
-	ENTRY_SAME(vhangup)
-	ENTRY_SAME(fstat64)
-	ENTRY_SAME(vfork_wrapper)
-	/* struct rusage contains longs... */
-	ENTRY_COMP(wait4)
-	ENTRY_SAME(swapoff)		/* 115 */
-	ENTRY_COMP(sysinfo)
-	ENTRY_SAME(shutdown)
-	ENTRY_SAME(fsync)
-	ENTRY_SAME(madvise)
-	ENTRY_SAME(clone_wrapper)	/* 120 */
-	ENTRY_SAME(setdomainname)
-	ENTRY_COMP(sendfile)
-	/* struct sockaddr... */
-	ENTRY_SAME(recvfrom)
-	/* struct timex contains longs */
-	ENTRY_COMP(adjtimex)
-	ENTRY_SAME(mprotect)		/* 125 */
-	/* old_sigset_t forced to 32 bits.  Beware glibc sigset_t */
-	ENTRY_COMP(sigprocmask)
-	ENTRY_SAME(ni_syscall)	/* create_module */
-	ENTRY_SAME(init_module)
-	ENTRY_SAME(delete_module)
-	ENTRY_SAME(ni_syscall)		/* 130: get_kernel_syms */
-	/* time_t inside struct dqblk */
-	ENTRY_SAME(quotactl)
-	ENTRY_SAME(getpgid)
-	ENTRY_SAME(fchdir)
-	ENTRY_SAME(bdflush)
-	ENTRY_SAME(sysfs)		/* 135 */
-	ENTRY_OURS(personality)
-	ENTRY_SAME(ni_syscall)	/* for afs_syscall */
-	ENTRY_SAME(setfsuid)
-	ENTRY_SAME(setfsgid)
-	/* I think this might work */
-	ENTRY_SAME(llseek)		/* 140 */
-	ENTRY_COMP(getdents)
-	/* it is POSSIBLE that select will be OK because even though fd_set
-	 * contains longs, the macros and sizes are clever. */
-	ENTRY_COMP(select)
-	ENTRY_SAME(flock)
-	ENTRY_SAME(msync)
-	/* struct iovec contains pointers */
-	ENTRY_COMP(readv)		/* 145 */
-	ENTRY_COMP(writev)
-	ENTRY_SAME(getsid)
-	ENTRY_SAME(fdatasync)
-	/* struct __sysctl_args is a mess */
-	ENTRY_COMP(sysctl)
-	ENTRY_SAME(mlock)		/* 150 */
-	ENTRY_SAME(munlock)
-	ENTRY_SAME(mlockall)
-	ENTRY_SAME(munlockall)
-	/* struct sched_param is ok for now */
-	ENTRY_SAME(sched_setparam)
-	ENTRY_SAME(sched_getparam)	/* 155 */
-	ENTRY_SAME(sched_setscheduler)
-	ENTRY_SAME(sched_getscheduler)
-	ENTRY_SAME(sched_yield)
-	ENTRY_SAME(sched_get_priority_max)
-	ENTRY_SAME(sched_get_priority_min)	/* 160 */
-	ENTRY_COMP(sched_rr_get_interval)
-	ENTRY_COMP(nanosleep)
-	ENTRY_SAME(mremap)
-	ENTRY_SAME(setresuid)
-	ENTRY_SAME(getresuid)		/* 165 */
-	ENTRY_COMP(sigaltstack)
-	ENTRY_SAME(ni_syscall)		/* query_module */
-	ENTRY_SAME(poll)
-	/* structs contain pointers and an in_addr... */
-	ENTRY_SAME(ni_syscall)		/* was nfsservctl */
-	ENTRY_SAME(setresgid)		/* 170 */
-	ENTRY_SAME(getresgid)
-	ENTRY_SAME(prctl)
-	/* signals need a careful review */
-	ENTRY_SAME(rt_sigreturn_wrapper)
-	ENTRY_COMP(rt_sigaction)
-	ENTRY_COMP(rt_sigprocmask)	/* 175 */
-	ENTRY_COMP(rt_sigpending)
-	ENTRY_COMP(rt_sigtimedwait)
-	/* even though the struct siginfo_t is different, it appears like
-	 * all the paths use values which should be same wide and narrow.
-	 * Also the struct is padded to 128 bytes which means we don't have
-	 * to worry about faulting trying to copy in a larger 64-bit
-	 * struct from a 32-bit user-space app.
-	 */
-	ENTRY_COMP(rt_sigqueueinfo)
-	ENTRY_COMP(rt_sigsuspend)
-	ENTRY_SAME(chown)		/* 180 */
-	/* setsockopt() used by iptables: SO_SET_REPLACE/SO_SET_ADD_COUNTERS */
-	ENTRY_COMP(setsockopt)
-	ENTRY_COMP(getsockopt)
-	ENTRY_COMP(sendmsg)
-	ENTRY_COMP(recvmsg)
-	ENTRY_SAME(semop)		/* 185 */
-	ENTRY_SAME(semget)
-	ENTRY_COMP(semctl)
-	ENTRY_COMP(msgsnd)
-	ENTRY_COMP(msgrcv)
-	ENTRY_SAME(msgget)		/* 190 */
-	ENTRY_COMP(msgctl)
-	ENTRY_COMP(shmat)
-	ENTRY_SAME(shmdt)
-	ENTRY_SAME(shmget)
-	ENTRY_COMP(shmctl)		/* 195 */
-	ENTRY_SAME(ni_syscall)		/* streams1 */
-	ENTRY_SAME(ni_syscall)		/* streams2 */
-	ENTRY_SAME(lstat64)
-	ENTRY_OURS(truncate64)
-	ENTRY_OURS(ftruncate64)		/* 200 */
-	ENTRY_SAME(getdents64)
-	ENTRY_COMP(fcntl64)
-	ENTRY_SAME(ni_syscall)	/* attrctl -- dead */
-	ENTRY_SAME(ni_syscall)	/* acl_get -- dead */
-	ENTRY_SAME(ni_syscall)		/* 205 (acl_set -- dead) */
-	ENTRY_SAME(gettid)
-	ENTRY_OURS(readahead)
-	ENTRY_SAME(tkill)
-	ENTRY_COMP(sendfile64)
-	ENTRY_COMP(futex)		/* 210 */
-	ENTRY_COMP(sched_setaffinity)
-	ENTRY_COMP(sched_getaffinity)
-	ENTRY_SAME(ni_syscall)	/* set_thread_area */
-	ENTRY_SAME(ni_syscall)	/* get_thread_area */
-	ENTRY_COMP(io_setup)		/* 215 */
-	ENTRY_SAME(io_destroy)
-	ENTRY_COMP(io_getevents)
-	ENTRY_COMP(io_submit)
-	ENTRY_SAME(io_cancel)
-	ENTRY_SAME(ni_syscall)		/* 220: was alloc_hugepages */
-	ENTRY_SAME(ni_syscall)		/* was free_hugepages */
-	ENTRY_SAME(exit_group)
-	ENTRY_COMP(lookup_dcookie)
-	ENTRY_SAME(epoll_create)
-	ENTRY_SAME(epoll_ctl)		/* 225 */
-	ENTRY_SAME(epoll_wait)
- 	ENTRY_SAME(remap_file_pages)
-	ENTRY_COMP(semtimedop)
-	ENTRY_COMP(mq_open)
-	ENTRY_SAME(mq_unlink)		/* 230 */
-	ENTRY_COMP(mq_timedsend)
-	ENTRY_COMP(mq_timedreceive)
-	ENTRY_COMP(mq_notify)
-	ENTRY_COMP(mq_getsetattr)
-	ENTRY_COMP(waitid)		/* 235 */
-	ENTRY_OURS(fadvise64_64)
-	ENTRY_SAME(set_tid_address)
-	ENTRY_SAME(setxattr)
-	ENTRY_SAME(lsetxattr)
-	ENTRY_SAME(fsetxattr)		/* 240 */
-	ENTRY_SAME(getxattr)
-	ENTRY_SAME(lgetxattr)
-	ENTRY_SAME(fgetxattr)
-	ENTRY_SAME(listxattr)
-	ENTRY_SAME(llistxattr)		/* 245 */
-	ENTRY_SAME(flistxattr)
-	ENTRY_SAME(removexattr)
-	ENTRY_SAME(lremovexattr)
-	ENTRY_SAME(fremovexattr)
-	ENTRY_COMP(timer_create)	/* 250 */
-	ENTRY_COMP(timer_settime)
-	ENTRY_COMP(timer_gettime)
-	ENTRY_SAME(timer_getoverrun)
-	ENTRY_SAME(timer_delete)
-	ENTRY_COMP(clock_settime)	/* 255 */
-	ENTRY_COMP(clock_gettime)
-	ENTRY_COMP(clock_getres)
-	ENTRY_COMP(clock_nanosleep)
-	ENTRY_SAME(tgkill)
-	ENTRY_COMP(mbind)		/* 260 */
-	ENTRY_COMP(get_mempolicy)
-	ENTRY_COMP(set_mempolicy)
-	ENTRY_SAME(ni_syscall)	/* 263: reserved for vserver */
-	ENTRY_SAME(add_key)
-	ENTRY_SAME(request_key)		/* 265 */
-	ENTRY_COMP(keyctl)
-	ENTRY_SAME(ioprio_set)
-	ENTRY_SAME(ioprio_get)
-	ENTRY_SAME(inotify_init)
-	ENTRY_SAME(inotify_add_watch)	/* 270 */
-	ENTRY_SAME(inotify_rm_watch)
-	ENTRY_SAME(migrate_pages)
-	ENTRY_COMP(pselect6)
-	ENTRY_COMP(ppoll)
-	ENTRY_COMP(openat)		/* 275 */
-	ENTRY_SAME(mkdirat)
-	ENTRY_SAME(mknodat)
-	ENTRY_SAME(fchownat)
-	ENTRY_COMP(futimesat)
-	ENTRY_SAME(fstatat64)		/* 280 */
-	ENTRY_SAME(unlinkat)
-	ENTRY_SAME(renameat)
-	ENTRY_SAME(linkat)
-	ENTRY_SAME(symlinkat)
-	ENTRY_SAME(readlinkat)		/* 285 */
-	ENTRY_SAME(fchmodat)
-	ENTRY_SAME(faccessat)
-	ENTRY_SAME(unshare)
-	ENTRY_COMP(set_robust_list)
-	ENTRY_COMP(get_robust_list)	/* 290 */
-	ENTRY_SAME(splice)
-	ENTRY_OURS(sync_file_range)
-	ENTRY_SAME(tee)
-	ENTRY_COMP(vmsplice)
-	ENTRY_COMP(move_pages)		/* 295 */
-	ENTRY_SAME(getcpu)
-	ENTRY_COMP(epoll_pwait)
-	ENTRY_COMP(statfs64)
-	ENTRY_COMP(fstatfs64)
-	ENTRY_COMP(kexec_load)		/* 300 */
-	ENTRY_COMP(utimensat)
-	ENTRY_COMP(signalfd)
-	ENTRY_SAME(ni_syscall)		/* was timerfd */
-	ENTRY_SAME(eventfd)
-	ENTRY_OURS(fallocate)		/* 305 */
-	ENTRY_SAME(timerfd_create)
-	ENTRY_COMP(timerfd_settime)
-	ENTRY_COMP(timerfd_gettime)
-	ENTRY_COMP(signalfd4)
-	ENTRY_SAME(eventfd2)		/* 310 */
-	ENTRY_SAME(epoll_create1)
-	ENTRY_SAME(dup3)
-	ENTRY_SAME(pipe2)
-	ENTRY_SAME(inotify_init1)
-	ENTRY_COMP(preadv)		/* 315 */
-	ENTRY_COMP(pwritev)
-	ENTRY_COMP(rt_tgsigqueueinfo)
-	ENTRY_SAME(perf_event_open)
-	ENTRY_COMP(recvmmsg)
-	ENTRY_SAME(accept4)		/* 320 */
-	ENTRY_SAME(prlimit64)
-	ENTRY_SAME(fanotify_init)
-	ENTRY_DIFF(fanotify_mark)
-	ENTRY_COMP(clock_adjtime)
-	ENTRY_SAME(name_to_handle_at)	/* 325 */
-	ENTRY_COMP(open_by_handle_at)
-	ENTRY_SAME(syncfs)
-	ENTRY_SAME(setns)
-	ENTRY_COMP(sendmmsg)
-	ENTRY_COMP(process_vm_readv)	/* 330 */
-	ENTRY_COMP(process_vm_writev)
-	ENTRY_SAME(kcmp)
-	ENTRY_SAME(finit_module)
-	ENTRY_SAME(sched_setattr)
-	ENTRY_SAME(sched_getattr)	/* 335 */
-	ENTRY_COMP(utimes)
-	ENTRY_SAME(renameat2)
-	ENTRY_SAME(seccomp)
-	ENTRY_SAME(getrandom)
-	ENTRY_SAME(memfd_create)	/* 340 */
-	ENTRY_SAME(bpf)
-	ENTRY_COMP(execveat)
-	ENTRY_SAME(membarrier)
-	ENTRY_SAME(userfaultfd)
-	ENTRY_SAME(mlock2)		/* 345 */
-	ENTRY_SAME(copy_file_range)
-	ENTRY_COMP(preadv2)
-	ENTRY_COMP(pwritev2)
-	ENTRY_SAME(statx)
-	ENTRY_COMP(io_pgetevents)	/* 350 */
-
-
-.ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
-.error "size of syscall table does not fit value of __NR_Linux_syscalls"
-.endif
-
-#undef ENTRY_SAME
-#undef ENTRY_DIFF
-#undef ENTRY_UHOH
-#undef ENTRY_COMP
-#undef ENTRY_OURS
diff --git a/arch/parisc/kernel/syscall_table_32.S b/arch/parisc/kernel/syscall_table_32.S
new file mode 100644
index 0000000..eec2c9a
--- /dev/null
+++ b/arch/parisc/kernel/syscall_table_32.S
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/linkage.h>
+
+	.align 8
+ENTRY(sys_call_table)
+	.export sys_call_table,data
+#if !defined(CONFIG_64BIT)
+#define __SYSCALL(nr, entry, nargs) .word entry
+#include <asm/syscall_table_32.h>
+#endif
+#undef __SYSCALL
+END(sys_call_table)
+
diff --git a/arch/parisc/kernel/syscall_table_64.S b/arch/parisc/kernel/syscall_table_64.S
new file mode 100644
index 0000000..af915688
--- /dev/null
+++ b/arch/parisc/kernel/syscall_table_64.S
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/linkage.h>
+
+	.align 8
+ENTRY(sys_call_table64)
+#if defined(CONFIG_64BIT) && defined(SYSCALL_TABLE_64BIT)
+#define __SYSCALL(nr, entry, nargs) .dword entry
+#include <asm/syscall_table_64.h>
+#endif
+#undef __SYSCALL
+END(sys_call_table64)
+
+	.align 8
+ENTRY(sys_call_tablec32)
+#if defined(CONFIG_64BIT) && !defined(SYSCALL_TABLE_64BIT)
+#define __SYSCALL(nr, entry, nargs) .dword entry
+#include <asm/syscall_table_c32.h>
+#endif
+#undef __SYSCALL
+END(sys_call_tablec32)
-- 
1.9.1



From - Thu Nov 08 21:42:07 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v3 5/6] parisc: wire up rseq system call
Date: Mon,  8 Oct 2018 10:46:40 +0530
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Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/kernel/syscalls/syscall.tbl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
index 4e85293..4334bb7 100644
--- a/arch/parisc/kernel/syscalls/syscall.tbl
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -349,4 +349,5 @@
 347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
 348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
 349     common  statx                           sys_statx
-350	common  io_pgetevents			sys_io_pgetevents		compat_sys_io_pgetevents
\ No newline at end of file
+350	common  io_pgetevents			sys_io_pgetevents		compat_sys_io_pgetevents
+351	common	rseq				sys_rseq			compat_sys_rseq
-- 
1.9.1



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Subject: [PATCH v3 6/6] parisc: syscalls: Ignore nfsservctl for other architectures
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This adds an exception to the syscall table checking script.

nfsservctl entry is only provided on x86, and there is no
reason to add it elsewhere. However, including it on the
syscall table caused a warning for most configurations on
non-x86.

<stdin>:696:2: warning: #warning syscall nfsservctl not implemented [-Wcpp]

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 scripts/checksyscalls.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
index ee3dfb5..cf93100 100755
--- a/scripts/checksyscalls.sh
+++ b/scripts/checksyscalls.sh
@@ -150,6 +150,7 @@ cat << EOF
 #define __IGNORE_uselib
 #define __IGNORE__sysctl
 #define __IGNORE_arch_prctl
+#define __IGNORE_nfsservctl
 
 /* ... including the "new" 32-bit uid syscalls */
 #define __IGNORE_lchown32
-- 
1.9.1



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Subject: Re: [PATCH v3 5/6] parisc: wire up rseq system call
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On 08.10.2018 07:16, Firoz Khan wrote:
> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> ---
>  arch/parisc/kernel/syscalls/syscall.tbl | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> index 4e85293..4334bb7 100644
> --- a/arch/parisc/kernel/syscalls/syscall.tbl
> +++ b/arch/parisc/kernel/syscalls/syscall.tbl
> @@ -349,4 +349,5 @@
>  347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
>  348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
>  349     common  statx                           sys_statx
> -350	common  io_pgetevents			sys_io_pgetevents		compat_sys_io_pgetevents
> \ No newline at end of file
> +350	common  io_pgetevents			sys_io_pgetevents		compat_sys_io_pgetevents
> +351	common	rseq				sys_rseq			compat_sys_rseq

You can't add the rseq syscall for parisc yet.
It needs additional code in the kernel for parisc which hasn't been tested yet.
See my initial untested patch at https://patchwork.kernel.org/patch/10495209/

Helge


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Newsgroups: gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch,gmane.linux.ports.parisc,gmane.linux.kernel
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 5/6] parisc: wire up rseq system call
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On 08.10.2018 07:52, Firoz Khan wrote:
> Hi Helge,
> 
> On Mon, 8 Oct 2018 at 11:11, Helge Deller <deller@gmx.de> wrote:
>>
>> On 08.10.2018 07:16, Firoz Khan wrote:
>>> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
>>> ---
>>>  arch/parisc/kernel/syscalls/syscall.tbl | 3 ++-
>>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
>>> index 4e85293..4334bb7 100644
>>> --- a/arch/parisc/kernel/syscalls/syscall.tbl
>>> +++ b/arch/parisc/kernel/syscalls/syscall.tbl
>>> @@ -349,4 +349,5 @@
>>>  347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
>>>  348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
>>>  349     common  statx                           sys_statx
>>> -350  common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
>>> \ No newline at end of file
>>> +350  common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
>>> +351  common  rseq                            sys_rseq                        compat_sys_rseq
>>
>> You can't add the rseq syscall for parisc yet.
>> It needs additional code in the kernel for parisc which hasn't been tested yet.
>> See my initial untested patch at https://patchwork.kernel.org/patch/10495209/
> 
> Thanks for your update!
> 
> When I compiled the kernel I got below warnings.
> 
> <stdin>:696:2: warning: #warning syscall nfsservctl not implemented [-Wcpp]
> <stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
> 
> I added an IGNORE entry nfsservctl in script/checksyscalls.sh because this
> syscall is gone. But we definitely have to keep rseq entry on parisc
> architecture.

I prefer to keep the warning for rseq for now.
It reminds me that we still may want the rseq syscall.
If the warning is a problem, you may simply add the __IGNORE_rseq define. 

> I can ignore this patch currently as your patch not yet tested.
> 
> FYI, I have merged the system call table files based on our previous
> discussions.
> Please comment on that.

I'll do after testing.

Thanks!
Helge
 
> I would appreciate if you can perform a boot test without this patch
> on the actual
> platform.
> 
> Firoz
> 
>>
>> Helge



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Cc: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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To: Helge Deller <deller@gmx.de>
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Hi Helge,

On Mon, 8 Oct 2018 at 11:36, Helge Deller <deller@gmx.de> wrote:
>
> On 08.10.2018 07:52, Firoz Khan wrote:
> > Hi Helge,
> >
> > On Mon, 8 Oct 2018 at 11:11, Helge Deller <deller@gmx.de> wrote:
> >>
> >> On 08.10.2018 07:16, Firoz Khan wrote:
> >>> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> >>> ---
> >>>  arch/parisc/kernel/syscalls/syscall.tbl | 3 ++-
> >>>  1 file changed, 2 insertions(+), 1 deletion(-)
> >>>
> >>> diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> >>> index 4e85293..4334bb7 100644
> >>> --- a/arch/parisc/kernel/syscalls/syscall.tbl
> >>> +++ b/arch/parisc/kernel/syscalls/syscall.tbl
> >>> @@ -349,4 +349,5 @@
> >>>  347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
> >>>  348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
> >>>  349     common  statx                           sys_statx
> >>> -350  common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> >>> \ No newline at end of file
> >>> +350  common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> >>> +351  common  rseq                            sys_rseq                        compat_sys_rseq
> >>
> >> You can't add the rseq syscall for parisc yet.
> >> It needs additional code in the kernel for parisc which hasn't been tested yet.
> >> See my initial untested patch at https://patchwork.kernel.org/patch/10495209/
> >
> > Thanks for your update!
> >
> > When I compiled the kernel I got below warnings.
> >
> > <stdin>:696:2: warning: #warning syscall nfsservctl not implemented [-Wcpp]
> > <stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
> >
> > I added an IGNORE entry nfsservctl in script/checksyscalls.sh because this
> > syscall is gone. But we definitely have to keep rseq entry on parisc
> > architecture.
>
> I prefer to keep the warning for rseq for now.

I'm fine with this.

> It reminds me that we still may want the rseq syscall.
> If the warning is a problem, you may simply add the __IGNORE_rseq define.

But I still feel to keep an IGNORE entry, so once you test your patch; we can
remove IGNORE entry and update the syscall.tbl.

I would like you to take the call here :)

Thanks
Firoz

>
> > I can ignore this patch currently as your patch not yet tested.
> >
> > FYI, I have merged the system call table files based on our previous
> > discussions.
> > Please comment on that.
>
> I'll do after testing.
>
> Thanks!
> Helge
>
> > I would appreciate if you can perform a boot test without this patch
> > on the actual
> > platform.
> >
> > Firoz
> >
> >>
> >> Helge
>


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On Mon, 8 Oct 2018 at 10:47, Firoz Khan <firoz.khan@linaro.org> wrote:
>
> The system call tables are in different format in all
> architecture and it will be difficult to manually add or
> modify the system calls in the respective files. To make
> it easy by keeping a script and which'll generate the
> header file and syscall table file so this change will
> unify them across all architectures.
>
> The system call table generation script is added in
> syscalls directory which contain the script to generate
> both uapi header file system call table generation file
> and syscall.tbl file which'll be the input for the
> scripts.
>
> syscall.tbl contains the list of available system calls
> along with system call number and corresponding entry point.
> Add a new system call in this architecture will be possible
> by adding new entry in the syscall.tbl file.
>
> Adding a new table entry consisting of:
>         - System call number.
>         - ABI.
>         - System call name.
>         - Entry point name.
>         - Compat entry name, if required.
>
> syscallhdr.sh and syscalltbl.sh will generate uapi header-
> unistd_32/64.h and syscall_table_32/64/c32.h files respect-
> ively. File syscall_table_32/64/c32.h is included by sys-
> call.S - the real system call table. Both .sh files will
> parse the content syscall.tbl to generate the header and
> table files.
>
> ARM, s390 and x86 architecuture does have the similar support.
> I leverage their implementation to come up with a generic
> solution.
>
> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> ---
>  arch/parisc/kernel/syscalls/Makefile      |  55 +++++
>  arch/parisc/kernel/syscalls/syscall.tbl   | 352 ++++++++++++++++++++++++++++++
>  arch/parisc/kernel/syscalls/syscallhdr.sh |  35 +++
>  arch/parisc/kernel/syscalls/syscalltbl.sh |  41 ++++
>  4 files changed, 483 insertions(+)
>  create mode 100644 arch/parisc/kernel/syscalls/Makefile
>  create mode 100644 arch/parisc/kernel/syscalls/syscall.tbl
>  create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
>  create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh
>
> diff --git a/arch/parisc/kernel/syscalls/Makefile b/arch/parisc/kernel/syscalls/Makefile
> new file mode 100644
> index 0000000..e4c9c63
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/Makefile
> @@ -0,0 +1,55 @@
> +# SPDX-License-Identifier: GPL-2.0
> +kapi := arch/$(SRCARCH)/include/generated/asm
> +uapi := arch/$(SRCARCH)/include/generated/uapi/asm
> +
> +_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
> +         $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
> +
> +syscall := $(srctree)/$(src)/syscall.tbl
> +syshdr := $(srctree)/$(src)/syscallhdr.sh
> +systbl := $(srctree)/$(src)/syscalltbl.sh
> +
> +quiet_cmd_syshdr = SYSHDR  $@
> +      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'  \
> +                  '$(syshdr_abi_$(basetarget))'          \
> +                  '$(syshdr_pfx_$(basetarget))'          \
> +                  '$(syshdr_offset_$(basetarget))'
> +
> +quiet_cmd_systbl = SYSTBL  $@
> +      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'  \
> +                   '$(systbl_abi_$(basetarget))'          \
> +                  '$(systbl_offset_$(basetarget))'
> +
> +syshdr_abi_unistd_32 := common,32
> +syshdr_offset_unistd_32 := __NR_Linux
> +$(uapi)/unistd_32.h: $(syscall) $(syshdr)
> +       $(call if_changed,syshdr)
> +
> +syshdr_abi_unistd_64 := common,64
> +syshdr_offset_unistd_64 := __NR_Linux
> +$(uapi)/unistd_64.h: $(syscall) $(syshdr)
> +       $(call if_changed,syshdr)
> +
> +systbl_abi_syscall_table_32 := common,32
> +$(kapi)/syscall_table_32.h: $(syscall) $(systbl)
> +       $(call if_changed,systbl)
> +
> +systbl_abi_syscall_table_64 := common,64
> +$(kapi)/syscall_table_64.h: $(syscall) $(systbl)
> +       $(call if_changed,systbl)
> +
> +systbl_abi_syscall_table_c32 := common,64
> +$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
> +       $(call if_changed,systbl)
> +
> +uapisyshdr-y                   += unistd_32.h unistd_64.h
> +kapisyshdr-y                   += syscall_table_32.h     \
> +                                   syscall_table_64.h     \
> +                                   syscall_table_c32.h
> +
> +targets        += $(uapisyshdr-y) $(kapisyshdr-y)
> +
> +PHONY += all
> +all: $(addprefix $(uapi)/,$(uapisyshdr-y))
> +all: $(addprefix $(kapi)/,$(kapisyshdr-y))
> +       @:
> diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> new file mode 100644
> index 0000000..4e85293
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/syscall.tbl
> @@ -0,0 +1,352 @@
> +# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
> +#
> +# system call numbers and entry vectors for parisc
> +#
> +# The format is:
> +# <number> <abi> <name> <entry point> <compat entry point>
> +#
> +# The <abi> can be common, 64, or 32 for this file.
> +#
> +0       common  restart_syscall                 sys_restart_syscall
> +1       common  exit                            sys_exit
> +2       common  fork                            sys_fork_wrapper
> +3       common  read                            sys_read
> +4       common  write                           sys_write
> +5       common  open                            sys_open                        compat_sys_open
> +6       common  close                           sys_close
> +7       common  waitpid                         sys_waitpid
> +8       common  creat                           sys_creat
> +9       common  link                            sys_link
> +10      common  unlink                          sys_unlink
> +11      common  execve                          sys_execve                      compat_sys_execve
> +12      common  chdir                           sys_chdir
> +13      common  time                            sys_time                        compat_sys_time
> +14      common  mknod                           sys_mknod
> +15      common  chmod                           sys_chmod
> +16      common  lchown                          sys_lchown
> +17      common  socket                          sys_socket
> +18      common  stat                            sys_newstat                     compat_sys_newstat
> +19      common  lseek                           sys_lseek                       compat_sys_lseek
> +20      common  getpid                          sys_getpid
> +21      common  mount                           sys_mount                       compat_sys_mount
> +22      common  bind                            sys_bind
> +23      common  setuid                          sys_setuid
> +24      common  getuid                          sys_getuid
> +25      common  stime                           sys_stime                       compat_sys_stime
> +26      common  ptrace                          sys_ptrace                      compat_sys_ptrace
> +27      common  alarm                           sys_alarm
> +28      common  fstat                           sys_newfstat                    compat_sys_newfstat
> +29      common  pause                           sys_pause
> +30      common  utime                           sys_utime                       compat_sys_utime
> +31      common  connect                         sys_connect
> +32      common  listen                          sys_listen
> +33      common  access                          sys_access
> +34      common  nice                            sys_nice
> +35      common  accept                          sys_accept
> +36      common  sync                            sys_sync
> +37      common  kill                            sys_kill
> +38      common  rename                          sys_rename
> +39      common  mkdir                           sys_mkdir
> +40      common  rmdir                           sys_rmdir
> +41      common  dup                             sys_dup
> +42      common  pipe                            sys_pipe
> +43      common  times                           sys_times                       compat_sys_times
> +44      common  getsockname                     sys_getsockname
> +45      common  brk                             sys_brk
> +46      common  setgid                          sys_setgid
> +47      common  getgid                          sys_getgid
> +48      common  signal                          sys_signal
> +49      common  geteuid                         sys_geteuid
> +50      common  getegid                         sys_getegid
> +51      common  acct                            sys_acct
> +52      common  umount2                         sys_umount
> +53      common  getpeername                     sys_getpeername
> +54      common  ioctl                           sys_ioctl                       compat_sys_ioctl
> +55      common  fcntl                           sys_fcntl                       compat_sys_fcntl
> +56      common  socketpair                      sys_socketpair
> +57      common  setpgid                         sys_setpgid
> +58      common  send                            sys_send
> +59      common  uname                           sys_newuname
> +60      common  umask                           sys_umask
> +61      common  chroot                          sys_chroot
> +62      common  ustat                           sys_ustat                       compat_sys_ustat
> +63      common  dup2                            sys_dup2
> +64      common  getppid                         sys_getppid
> +65      common  getpgrp                         sys_getpgrp
> +66      common  setsid                          sys_setsid
> +67      common  pivot_root                      sys_pivot_root
> +68      common  sgetmask                        sys_sgetmask                    sys32_unimplemented
> +69      common  ssetmask                        sys_ssetmask                    sys32_unimplemented
> +70      common  setreuid                        sys_setreuid
> +71      common  setregid                        sys_setregid
> +72      common  mincore                         sys_mincore
> +73      common  sigpending                      sys_sigpending                  compat_sys_sigpending
> +74      common  sethostname                     sys_sethostname
> +75      common  setrlimit                       sys_setrlimit                   compat_sys_setrlimit
> +76      common  getrlimit                       sys_getrlimit                   compat_sys_getrlimit
> +77      common  getrusage                       sys_getrusage                   compat_sys_getrusage
> +78      common  gettimeofday                    sys_gettimeofday                compat_sys_gettimeofday
> +79      common  settimeofday                    sys_settimeofday                compat_sys_settimeofday
> +80      common  getgroups                       sys_getgroups
> +81      common  setgroups                       sys_setgroups
> +82      common  sendto                          sys_sendto
> +83      common  symlink                         sys_symlink
> +84      common  lstat                           sys_newlstat                    compat_sys_newlstat
> +85      common  readlink                        sys_readlink
> +86      common  uselib                          sys_ni_syscall
> +87      common  swapon                          sys_swapon
> +88      common  reboot                          sys_reboot
> +89      common  mmap2                           sys_mmap2
> +90      common  mmap                            sys_mmap
> +91      common  munmap                          sys_munmap
> +92      common  truncate                        sys_truncate                    compat_sys_truncate
> +93      common  ftruncate                       sys_ftruncate                   compat_sys_ftruncate
> +94      common  fchmod                          sys_fchmod
> +95      common  fchown                          sys_fchown
> +96      common  getpriority                     sys_getpriority
> +97      common  setpriority                     sys_setpriority
> +98      common  recv                            sys_recv
> +99      common  statfs                          sys_statfs                      compat_sys_statfs
> +100     common  fstatfs                         sys_fstatfs                     compat_sys_fstatfs
> +101     common  stat64                          sys_stat64
> +103     common  syslog                          sys_syslog
> +104     common  setitimer                       sys_setitimer                   compat_sys_setitimer
> +105     common  getitimer                       sys_getitimer                   compat_sys_getitimer
> +106     common  capget                          sys_capget
> +107     common  capset                          sys_capset
> +108     32      pread64                         parisc_pread64
> +108     64      pread64                         sys_pread64                     parisc_pread64
> +109     32      pwrite64                        parisc_pwrite64
> +109     64      pwrite64                        sys_pwrite64                    parisc_pwrite64
> +110     common  getcwd                          sys_getcwd
> +111     common  vhangup                         sys_vhangup
> +112     common  fstat64                         sys_fstat64
> +113     common  vfork                           sys_vfork_wrapper
> +114     common  wait4                           sys_wait4                       compat_sys_wait4
> +115     common  swapoff                         sys_swapoff
> +116     common  sysinfo                         sys_sysinfo                     compat_sys_sysinfo
> +117     common  shutdown                        sys_shutdown
> +118     common  fsync                           sys_fsync
> +119     common  madvise                         sys_madvise
> +120     common  clone                           sys_clone_wrapper
> +121     common  setdomainname                   sys_setdomainname
> +122     common  sendfile                        sys_sendfile                    compat_sys_sendfile
> +123     common  recvfrom                        sys_recvfrom
> +124     common  adjtimex                        sys_adjtimex                    compat_sys_adjtimex
> +125     common  mprotect                        sys_mprotect
> +126     common  sigprocmask                     sys_sigprocmask                 compat_sys_sigprocmask
> +128     common  init_module                     sys_init_module
> +129     common  delete_module                   sys_delete_module
> +131     common  quotactl                        sys_quotactl
> +132     common  getpgid                         sys_getpgid
> +133     common  fchdir                          sys_fchdir
> +134     common  bdflush                         sys_bdflush
> +135     common  sysfs                           sys_sysfs
> +136     32      personality                     parisc_personality
> +136     64      personality                     sys_personality                 parisc_personality
> +138     common  setfsuid                        sys_setfsuid
> +139     common  setfsgid                        sys_setfsgid
> +140     common  _llseek                         sys_llseek
> +141     common  getdents                        sys_getdents                    compat_sys_getdents
> +142     common  _newselect                      sys_select                      compat_sys_select
> +143     common  flock                           sys_flock
> +144     common  msync                           sys_msync
> +145     common  readv                           sys_readv                       compat_sys_readv
> +146     common  writev                          sys_writev                      compat_sys_writev
> +147     common  getsid                          sys_getsid
> +148     common  fdatasync                       sys_fdatasync
> +149     common  _sysctl                         sys_sysctl                      compat_sys_sysctl
> +150     common  mlock                           sys_mlock
> +151     common  munlock                         sys_munlock
> +152     common  mlockall                        sys_mlockall
> +153     common  munlockall                      sys_munlockall
> +154     common  sched_setparam                  sys_sched_setparam
> +155     common  sched_getparam                  sys_sched_getparam
> +156     common  sched_setscheduler              sys_sched_setscheduler
> +157     common  sched_getscheduler              sys_sched_getscheduler
> +158     common  sched_yield                     sys_sched_yield
> +159     common  sched_get_priority_max          sys_sched_get_priority_max
> +160     common  sched_get_priority_min          sys_sched_get_priority_min
> +161     common  sched_rr_get_interval           sys_sched_rr_get_interval       compat_sys_sched_rr_get_interval
> +162     common  nanosleep                       sys_nanosleep                   compat_sys_nanosleep
> +163     common  mremap                          sys_mremap
> +164     common  setresuid                       sys_setresuid
> +165     common  getresuid                       sys_getresuid
> +166     common  sigaltstack                     sys_sigaltstack                 compat_sys_sigaltstack
> +168     common  poll                            sys_poll
> +170     common  setresgid                       sys_setresgid
> +171     common  getresgid                       sys_getresgid
> +172     common  prctl                           sys_prctl
> +173     common  rt_sigreturn                    sys_rt_sigreturn
> +174     common  rt_sigaction                    sys_rt_sigaction                compat_sys_rt_sigaction
> +175     common  rt_sigprocmask                  sys_rt_sigprocmask              compat_sys_rt_sigprocmask
> +176     common  rt_sigpending                   sys_rt_sigpending               compat_sys_rt_sigpending
> +177     common  rt_sigtimedwait                 sys_rt_sigtimedwait             compat_sys_rt_sigtimedwait
> +178     common  rt_sigqueueinfo                 sys_rt_sigqueueinfo             compat_sys_rt_sigqueueinfo
> +179     common  rt_sigsuspend                   sys_rt_sigsuspend               compat_sys_rt_sigsuspend
> +180     common  chown                           sys_chown
> +181     common  setsockopt                      sys_setsockopt                  compat_sys_setsockopt
> +182     common  getsockopt                      sys_getsockopt                  compat_sys_getsockopt
> +183     common  sendmsg                         sys_sendmsg                     compat_sys_sendmsg
> +184     common  recvmsg                         sys_recvmsg                     compat_sys_recvmsg
> +185     common  semop                           sys_semop
> +186     common  semget                          sys_semget
> +187     common  semctl                          sys_semctl                      compat_sys_semctl
> +188     common  msgsnd                          sys_msgsnd                      compat_sys_msgsnd
> +189     common  msgrcv                          sys_msgrcv                      compat_sys_msgrcv
> +190     common  msgget                          sys_msgget
> +191     common  msgctl                          sys_msgctl                      compat_sys_msgctl
> +192     common  shmat                           sys_shmat                       compat_sys_shmat
> +193     common  shmdt                           sys_shmdt
> +194     common  shmget                          sys_shmget
> +195     common  shmctl                          sys_shmctl                      compat_sys_shmctl
> +198     common  lstat64                         sys_lstat64
> +199     32      truncate64                      parisc_truncate64
> +199     64      truncate64                      sys_truncate64                  parisc_truncate64
> +200     32      ftruncate64                     parisc_ftruncate64
> +200     64      ftruncate64                     sys_ftruncate64                 parisc_ftruncate64
> +201     common  getdents64                      sys_getdents64
> +202     common  fcntl64                         sys_fcntl64                     compat_sys_fcntl64
> +206     common  gettid                          sys_gettid
> +207     32      readahead                       parisc_readahead
> +207     64      readahead                       sys_readahead                   parisc_readahead
> +208     common  tkill                           sys_tkill
> +209     common  sendfile64                      sys_sendfile64                  compat_sys_sendfile64
> +210     common  futex                           sys_futex                       compat_sys_futex
> +211     common  sched_setaffinity               sys_sched_setaffinity           compat_sys_sched_setaffinity
> +212     common  sched_getaffinity               sys_sched_getaffinity           compat_sys_sched_getaffinity
> +215     common  io_setup                        sys_io_setup                    compat_sys_io_setup
> +216     common  io_destroy                      sys_io_destroy
> +217     common  io_getevents                    sys_io_getevents                compat_sys_io_getevents
> +218     common  io_submit                       sys_io_submit                   compat_sys_io_submit
> +219     common  io_cancel                       sys_io_cancel
> +222     common  exit_group                      sys_exit_group
> +223     common  lookup_dcookie                  sys_lookup_dcookie              compat_sys_lookup_dcookie
> +224     common  epoll_create                    sys_epoll_create
> +225     common  epoll_ctl                       sys_epoll_ctl
> +226     common  epoll_wait                      sys_epoll_wait
> +227     common  remap_file_pages                sys_remap_file_pages
> +228     common  semtimedop                      sys_semtimedop                  compat_sys_semtimedop
> +229     common  mq_open                         sys_mq_open                     compat_sys_mq_open
> +230     common  mq_unlink                       sys_mq_unlink
> +231     common  mq_timedsend                    sys_mq_timedsend                compat_sys_mq_timedsend
> +232     common  mq_timedreceive                 sys_mq_timedreceive             compat_sys_mq_timedreceive
> +233     common  mq_notify                       sys_mq_notify                   compat_sys_mq_notify
> +234     common  mq_getsetattr                   sys_mq_getsetattr               compat_sys_mq_getsetattr
> +235     common  waitid                          sys_waitid                      compat_sys_waitid
> +236     32      fadvise64_64                    parisc_fadvise64_64
> +236     64      fadvise64_64                    sys_fadvise64_64                parisc_fadvise64_64
> +237     common  set_tid_address                 sys_set_tid_address
> +238     common  setxattr                        sys_setxattr
> +239     common  lsetxattr                       sys_lsetxattr
> +240     common  fsetxattr                       sys_fsetxattr
> +241     common  getxattr                        sys_getxattr
> +242     common  lgetxattr                       sys_lgetxattr
> +243     common  fgetxattr                       sys_fgetxattr
> +244     common  listxattr                       sys_listxattr
> +245     common  llistxattr                      sys_llistxattr
> +246     common  flistxattr                      sys_flistxattr
> +247     common  removexattr                     sys_removexattr
> +248     common  lremovexattr                    sys_lremovexattr
> +249     common  fremovexattr                    sys_fremovexattr
> +250     common  timer_create                    sys_timer_create                compat_sys_timer_create
> +251     common  timer_settime                   sys_timer_settime               compat_sys_timer_settime
> +252     common  timer_gettime                   sys_timer_gettime               compat_sys_timer_gettime
> +253     common  timer_getoverrun                sys_timer_getoverrun
> +254     common  timer_delete                    sys_timer_delete
> +255     common  clock_settime                   sys_clock_settime               compat_sys_clock_settime
> +256     common  clock_gettime                   sys_clock_gettime               compat_sys_clock_gettime
> +257     common  clock_getres                    sys_clock_getres                compat_sys_clock_getres
> +258     common  clock_nanosleep                 sys_clock_nanosleep             compat_sys_clock_nanosleep
> +259     common  tgkill                          sys_tgkill
> +260     common  mbind                           sys_mbind                       compat_sys_mbind
> +261     common  get_mempolicy                   sys_get_mempolicy               compat_sys_get_mempolicy
> +262     common  set_mempolicy                   sys_set_mempolicy               compat_sys_set_mempolicy
> +264     common  add_key                         sys_add_key
> +265     common  request_key                     sys_request_key
> +266     common  keyctl                          sys_keyctl                      compat_sys_keyctl
> +267     common  ioprio_set                      sys_ioprio_set
> +268     common  ioprio_get                      sys_ioprio_get
> +269     common  inotify_init                    sys_inotify_init
> +270     common  inotify_add_watch               sys_inotify_add_watch
> +271     common  inotify_rm_watch                sys_inotify_rm_watch
> +272     common  migrate_pages                   sys_migrate_pages
> +273     common  pselect6                        sys_pselect6                    compat_sys_pselect6
> +274     common  ppoll                           sys_ppoll                       compat_sys_ppoll
> +275     common  openat                          sys_openat                      compat_sys_openat
> +276     common  mkdirat                         sys_mkdirat
> +277     common  mknodat                         sys_mknodat
> +278     common  fchownat                        sys_fchownat
> +279     common  futimesat                       sys_futimesat                   compat_sys_futimesat
> +280     common  fstatat64                       sys_fstatat64
> +281     common  unlinkat                        sys_unlinkat
> +282     common  renameat                        sys_renameat
> +283     common  linkat                          sys_linkat
> +284     common  symlinkat                       sys_symlinkat
> +285     common  readlinkat                      sys_readlinkat
> +286     common  fchmodat                        sys_fchmodat
> +287     common  faccessat                       sys_faccessat
> +288     common  unshare                         sys_unshare
> +289     common  set_robust_list                 sys_set_robust_list             compat_sys_set_robust_list
> +290     common  get_robust_list                 sys_get_robust_list             compat_sys_get_robust_list
> +291     common  splice                          sys_splice
> +292     32      sync_file_range                 parisc_sync_file_range
> +292     64      sync_file_range                 sys_sync_file_range             parisc_sync_file_range
> +293     common  tee                             sys_tee
> +294     common  vmsplice                        sys_vmsplice                    compat_sys_vmsplice
> +295     common  move_pages                      sys_move_pages                  compat_sys_move_pages
> +296     common  getcpu                          sys_getcpu
> +297     common  epoll_pwait                     sys_epoll_pwait                 compat_sys_epoll_pwait
> +298     common  statfs64                        sys_statfs64                    compat_sys_statfs64
> +299     common  fstatfs64                       sys_fstatfs64                   compat_sys_fstatfs64
> +300     common  kexec_load                      sys_kexec_load                  compat_sys_kexec_load
> +301     common  utimensat                       sys_utimensat                   compat_sys_utimensat
> +302     common  signalfd                        sys_signalfd                    compat_sys_signalfd
> +304     common  eventfd                         sys_eventfd
> +305     32      fallocate                       parisc_fallocate
> +305     64      fallocate                       sys_fallocate                   parisc_fallocate
> +306     common  timerfd_create                  sys_timerfd_create
> +307     common  timerfd_settime                 sys_timerfd_settime             compat_sys_timerfd_settime
> +308     common  timerfd_gettime                 sys_timerfd_gettime             compat_sys_timerfd_gettime
> +309     common  signalfd4                       sys_signalfd4                   compat_sys_signalfd4
> +310     common  eventfd2                        sys_eventfd2
> +311     common  epoll_create1                   sys_epoll_create1
> +312     common  dup3                            sys_dup3
> +313     common  pipe2                           sys_pipe2
> +314     common  inotify_init1                   sys_inotify_init1
> +315     common  preadv                          sys_preadv                      compat_sys_preadv
> +316     common  pwritev                         sys_pwritev                     compat_sys_pwritev
> +317     common  rt_tgsigqueueinfo               sys_rt_tgsigqueueinfo           compat_sys_rt_tgsigqueueinfo
> +318     common  perf_event_open                 sys_perf_event_open
> +319     common  recvmmsg                        sys_recvmmsg                    compat_sys_recvmmsg
> +320     common  accept4                         sys_accept4
> +321     common  prlimit64                       sys_prlimit64
> +322     common  fanotify_init                   sys_fanotify_init
> +323     common  fanotify_mark                   sys_fanotify_mark               sys32_fanotify_mark
> +324     common  clock_adjtime                   sys_clock_adjtime               compat_sys_clock_adjtime
> +325     common  name_to_handle_at               sys_name_to_handle_at
> +326     common  open_by_handle_at               sys_open_by_handle_at           compat_sys_open_by_handle_at
> +327     common  syncfs                          sys_syncfs
> +328     common  setns                           sys_setns
> +329     common  sendmmsg                        sys_sendmmsg                    compat_sys_sendmmsg
> +330     common  process_vm_readv                sys_process_vm_readv            compat_sys_process_vm_readv
> +331     common  process_vm_writev               sys_process_vm_writev           compat_sys_process_vm_writev
> +332     common  kcmp                            sys_kcmp
> +333     common  finit_module                    sys_finit_module
> +334     common  sched_setattr                   sys_sched_setattr
> +335     common  sched_getattr                   sys_sched_getattr
> +336     common  utimes                          sys_utimes                      compat_sys_utimes
> +337     common  renameat2                       sys_renameat2
> +338     common  seccomp                         sys_seccomp
> +339     common  getrandom                       sys_getrandom
> +340     common  memfd_create                    sys_memfd_create
> +341     common  bpf                             sys_bpf
> +342     common  execveat                        sys_execveat                    compat_sys_execveat
> +343     common  membarrier                      sys_membarrier
> +344     common  userfaultfd                     sys_userfaultfd
> +345     common  mlock2                          sys_mlock2
> +346     common  copy_file_range                 sys_copy_file_range
> +347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
> +348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
> +349     common  statx                           sys_statx
> +350    common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> \ No newline at end of file
> diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh b/arch/parisc/kernel/syscalls/syscallhdr.sh
> new file mode 100644
> index 0000000..607d4ca
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
> @@ -0,0 +1,35 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0
> +
> +in="$1"
> +out="$2"
> +my_abis=`echo "($3)" | tr ',' '|'`
> +prefix="$4"
> +offset="$5"
> +
> +fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
> +    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
> +    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
> +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> +    echo "#ifndef ${fileguard}"
> +    echo "#define ${fileguard}"
> +    echo ""
> +
> +    nxt=0
> +    while read nr abi name entry compat ; do
> +       if [ -z "$offset" ]; then
> +           echo -e "#define __NR_${prefix}${name}\t$nr"
> +       else
> +           echo -e "#define __NR_${prefix}${name}\t($offset + $nr)"
> +       fi
> +       nxt=$nr
> +       let nxt=nxt+1
> +    done
> +
> +    echo ""
> +    echo "#ifdef __KERNEL__"
> +    echo -e "#define __NR_syscalls\t$nxt"
> +    echo "#endif"
> +    echo ""
> +    echo "#endif /* ${fileguard} */"
> +) > "$out"
> diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh b/arch/parisc/kernel/syscalls/syscalltbl.sh
> new file mode 100644
> index 0000000..82b0416
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/syscalltbl.sh
> @@ -0,0 +1,41 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0
> +
> +in="$1"
> +out="$2"
> +my_abis=`echo "($3)" | tr ',' '|'`
> +offset="$4"
> +
> +emit() {
> +    nxt="$1"
> +    nr="$2"
> +    entry="$3"
> +
> +    while [ $nxt -lt $nr ]; do
> +       echo "__SYSCALL($nxt, sys_ni_syscall, )"
> +        let nxt=nxt+1
> +    done
> +    echo "__SYSCALL($nr, $entry, )"
> +}
> +
> +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> +    if [ -z "$offset" ]; then
> +       nxt=0
> +    else
> +       nxt=$offset
> +    fi
> +
> +    while read nr abi name entry compat ; do
> +       if [ ${out: -5} = "c32.h" ]; then
> +           if [ -z "$compat" ]; then
> +               emit $nxt $nr $entry
> +           else
> +               emit $nxt $nr $compat
> +           fi
> +       elif [ ${out: -4} = "64.h" -o  ${out: -4} = "32.h" ]; then
> +           emit $nxt $nr $entry
> +       fi
> +       nxt=$nr
> +        let nxt=nxt+1
> +    done
> +) > "$out"
> --
> 1.9.1
>

I did some stupidity here. will fix now. Thanks!


From - Thu Nov 08 21:42:08 2018
X-Mozilla-Status: 0011
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Geert Uytterhoeven <geert@linux-m68k.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 5/6] parisc: wire up rseq system call
Date: Mon, 8 Oct 2018 10:23:33 +0200
Lines: 68
Approved: news@gmane.org
Message-ID: <CAMuHMdWOKmnn18yS_dHNjgT8rrVsUc3ipGpMTQbyEBujHuVE8w@mail.gmail.com>
References: <1538975801-13735-1-git-send-email-firoz.khan@linaro.org>
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Cc: Helge Deller <deller@gmx.de>,
        Parisc List <linux-parisc@vger.kernel.org>,
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To: firoz.khan@linaro.org
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Hi Firoz,

On Mon, Oct 8, 2018 at 8:49 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> On Mon, 8 Oct 2018 at 11:36, Helge Deller <deller@gmx.de> wrote:
> > On 08.10.2018 07:52, Firoz Khan wrote:
> > > On Mon, 8 Oct 2018 at 11:11, Helge Deller <deller@gmx.de> wrote:
> > >> On 08.10.2018 07:16, Firoz Khan wrote:
> > >>> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> > >>> ---
> > >>>  arch/parisc/kernel/syscalls/syscall.tbl | 3 ++-
> > >>>  1 file changed, 2 insertions(+), 1 deletion(-)
> > >>>
> > >>> diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> > >>> index 4e85293..4334bb7 100644
> > >>> --- a/arch/parisc/kernel/syscalls/syscall.tbl
> > >>> +++ b/arch/parisc/kernel/syscalls/syscall.tbl
> > >>> @@ -349,4 +349,5 @@
> > >>>  347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
> > >>>  348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
> > >>>  349     common  statx                           sys_statx
> > >>> -350  common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> > >>> \ No newline at end of file
> > >>> +350  common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> > >>> +351  common  rseq                            sys_rseq                        compat_sys_rseq
> > >>
> > >> You can't add the rseq syscall for parisc yet.
> > >> It needs additional code in the kernel for parisc which hasn't been tested yet.
> > >> See my initial untested patch at https://patchwork.kernel.org/patch/10495209/
> > >
> > > Thanks for your update!
> > >
> > > When I compiled the kernel I got below warnings.
> > >
> > > <stdin>:696:2: warning: #warning syscall nfsservctl not implemented [-Wcpp]
> > > <stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
> > >
> > > I added an IGNORE entry nfsservctl in script/checksyscalls.sh because this
> > > syscall is gone. But we definitely have to keep rseq entry on parisc
> > > architecture.
> >
> > I prefer to keep the warning for rseq for now.
>
> I'm fine with this.
>
> > It reminds me that we still may want the rseq syscall.
> > If the warning is a problem, you may simply add the __IGNORE_rseq define.
>
> But I still feel to keep an IGNORE entry, so once you test your patch; we can
> remove IGNORE entry and update the syscall.tbl.

If the warning is bogus (e.g. obsolete syscall), an IGNORE entry
should be added.
If the warning is due to a not-yet-implemented feature, IMHO it should not be
silenced, as that would give the false impression that the feature is
present and
implemented.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds


From - Thu Nov 08 21:42:08 2018
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 5/6] parisc: wire up rseq system call
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
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        Thomas Gleixner <tglx@linutronix.de>,
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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Hi Geert,

On Mon, 8 Oct 2018 at 13:53, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
> Hi Firoz,
>
> On Mon, Oct 8, 2018 at 8:49 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > On Mon, 8 Oct 2018 at 11:36, Helge Deller <deller@gmx.de> wrote:
> > > On 08.10.2018 07:52, Firoz Khan wrote:
> > > > On Mon, 8 Oct 2018 at 11:11, Helge Deller <deller@gmx.de> wrote:
> > > >> On 08.10.2018 07:16, Firoz Khan wrote:
> > > >>> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> > > >>> ---
> > > >>>  arch/parisc/kernel/syscalls/syscall.tbl | 3 ++-
> > > >>>  1 file changed, 2 insertions(+), 1 deletion(-)
> > > >>>
> > > >>> diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> > > >>> index 4e85293..4334bb7 100644
> > > >>> --- a/arch/parisc/kernel/syscalls/syscall.tbl
> > > >>> +++ b/arch/parisc/kernel/syscalls/syscall.tbl
> > > >>> @@ -349,4 +349,5 @@
> > > >>>  347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
> > > >>>  348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
> > > >>>  349     common  statx                           sys_statx
> > > >>> -350  common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> > > >>> \ No newline at end of file
> > > >>> +350  common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> > > >>> +351  common  rseq                            sys_rseq                        compat_sys_rseq
> > > >>
> > > >> You can't add the rseq syscall for parisc yet.
> > > >> It needs additional code in the kernel for parisc which hasn't been tested yet.
> > > >> See my initial untested patch at https://patchwork.kernel.org/patch/10495209/
> > > >
> > > > Thanks for your update!
> > > >
> > > > When I compiled the kernel I got below warnings.
> > > >
> > > > <stdin>:696:2: warning: #warning syscall nfsservctl not implemented [-Wcpp]
> > > > <stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
> > > >
> > > > I added an IGNORE entry nfsservctl in script/checksyscalls.sh because this
> > > > syscall is gone. But we definitely have to keep rseq entry on parisc
> > > > architecture.
> > >
> > > I prefer to keep the warning for rseq for now.
> >
> > I'm fine with this.
> >
> > > It reminds me that we still may want the rseq syscall.
> > > If the warning is a problem, you may simply add the __IGNORE_rseq define.
> >
> > But I still feel to keep an IGNORE entry, so once you test your patch; we can
> > remove IGNORE entry and update the syscall.tbl.
>
> If the warning is bogus (e.g. obsolete syscall), an IGNORE entry
> should be added.

nfsservctl  look like an obsolete one, so I added an IGNORE entry in
script/checksyscalls.h

> If the warning is due to a not-yet-implemented feature, IMHO it should not be
> silenced, as that would give the false impression that the feature is
> present and
> implemented.

Helge had done some implementation for rseq but not tested. So we
either add an IGNORE
entry or leave the warning as it is.

Thanks
Firoz

>
> Gr{oetje,eeting}s,
>
>                         Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds


From - Thu Nov 08 21:42:08 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 5/6] parisc: wire up rseq system call
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Cc: Helge Deller <deller@gmx.de>,
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To: firoz.khan@linaro.org
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Hi Firoz,

On Mon, Oct 8, 2018 at 10:55 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> On Mon, 8 Oct 2018 at 13:53, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> > On Mon, Oct 8, 2018 at 8:49 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > > On Mon, 8 Oct 2018 at 11:36, Helge Deller <deller@gmx.de> wrote:
> > > > On 08.10.2018 07:52, Firoz Khan wrote:
> > > > > <stdin>:696:2: warning: #warning syscall nfsservctl not implemented [-Wcpp]
> > > > > <stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
> > > > >
> > > > > I added an IGNORE entry nfsservctl in script/checksyscalls.sh because this
> > > > > syscall is gone. But we definitely have to keep rseq entry on parisc
> > > > > architecture.
> > > >
> > > > I prefer to keep the warning for rseq for now.
> > >
> > > I'm fine with this.
> > >
> > > > It reminds me that we still may want the rseq syscall.
> > > > If the warning is a problem, you may simply add the __IGNORE_rseq define.
> > >
> > > But I still feel to keep an IGNORE entry, so once you test your patch; we can
> > > remove IGNORE entry and update the syscall.tbl.
> >
> > If the warning is bogus (e.g. obsolete syscall), an IGNORE entry
> > should be added.
>
> nfsservctl  look like an obsolete one, so I added an IGNORE entry in
> script/checksyscalls.h

Yes it is.

> > If the warning is due to a not-yet-implemented feature, IMHO it should not be
> > silenced, as that would give the false impression that the feature is
> > present and
> > implemented.
>
> Helge had done some implementation for rseq but not tested. So we
> either add an IGNORE
> entry or leave the warning as it is.

Personally, I prefer keeping the warning, for the above reason.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds


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Subject: Re: [PATCH v3 5/6] parisc: wire up rseq system call
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Cc: Firoz Khan <firoz.khan@linaro.org>, Helge Deller <deller@gmx.de>,
        Parisc List <linux-parisc@vger.kernel.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
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To: Geert Uytterhoeven <geert@linux-m68k.org>
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On Mon, Oct 8, 2018 at 10:58 AM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> On Mon, Oct 8, 2018 at 10:55 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > On Mon, 8 Oct 2018 at 13:53, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> > > On Mon, Oct 8, 2018 at 8:49 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > > If the warning is due to a not-yet-implemented feature, IMHO it should not be
> > > silenced, as that would give the false impression that the feature is
> > > present and
> > > implemented.
> >
> > Helge had done some implementation for rseq but not tested. So we
> > either add an IGNORE
> > entry or leave the warning as it is.
>
> Personally, I prefer keeping the warning, for the above reason.

Agreed, there is no need to patch this now if Helge is already working
on the correct fix. Same for the other architectures. If there are architectures
that have multiple missing syscalls, we could add a line with a comment
for rseq but not actually define it, like

 348     common  pwritev2                     sys_pwritev2
       compat_sys_pwritev2
 349     common  statx                           sys_statx
+350    common  io_pgetevents            sys_io_pgetevents
  compat_sys_io_pgetevents
+# rseq requires an arch specific implementation
+# 351    common  rseq                          sys_rseq
         compat_sys_rseq */
+352     common  open_tree                 sys_open_tree
+353     common  move_mount             sys_move_mount
+354     common  fsopen                       sys_fsopen

      Arnd


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> On Mon, 8 Oct 2018 at 10:47, Firoz Khan <firoz.khan@linaro.org> wrote:
> > diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> > new file mode 100644
> > index 0000000..4e85293
> > --- /dev/null
> > +++ b/arch/parisc/kernel/syscalls/syscall.tbl
> > @@ -0,0 +1,352 @@
> > +# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
> > +#
> > +# system call numbers and entry vectors for parisc
> > +#
> > +# The format is:
> > +# <number> <abi> <name> <entry point> <compat entry point>
> > +#
> > +# The <abi> can be common, 64, or 32 for this file.
> > +#
> > +0       common  restart_syscall                 sys_restart_syscall
> > +1       common  exit                            sys_exit
> > +2       common  fork                            sys_fork_wrapper
> > +3       common  read                            sys_read
> > +4       common  write                           sys_write
> > +5       common  open                            sys_open                        compat_sys_open
> > +6       common  close                           sys_close
> > +7       common  waitpid                         sys_waitpid
> > +8       common  creat                           sys_creat
> > +9       common  link                            sys_link
> > +10      common  unlink                          sys_unlink
> > +11      common  execve                          sys_execve                      compat_sys_execve
> > +12      common  chdir                           sys_chdir
> > +13      common  time                            sys_time                        compat_sys_time
> > +14      common  mknod                           sys_mknod
> > +15      common  chmod                           sys_chmod
> > +16      common  lchown                          sys_lchown
> > +17      common  socket                          sys_socket
> > +18      common  stat                            sys_newstat                     compat_sys_newstat
> > +19      common  lseek                           sys_lseek                       compat_sys_lseek
> > +20      common  getpid                          sys_getpid
> > +21      common  mount                           sys_mount                       compat_sys_mount
> > +22      common  bind                            sys_bind
> > +23      common  setuid                          sys_setuid
> > +24      common  getuid                          sys_getuid
> > +25      common  stime                           sys_stime                       compat_sys_stime
> > +26      common  ptrace                          sys_ptrace                      compat_sys_ptrace
> > +27      common  alarm                           sys_alarm
> > +28      common  fstat                           sys_newfstat                    compat_sys_newfstat
> > +29      common  pause                           sys_pause
> > +30      common  utime                           sys_utime                       compat_sys_utime
> > +31      common  connect                         sys_connect
> > +32      common  listen                          sys_listen
> > +33      common  access                          sys_access
> > +34      common  nice                            sys_nice
> > +35      common  accept                          sys_accept
> > +36      common  sync                            sys_sync
> > +37      common  kill                            sys_kill
> > +38      common  rename                          sys_rename
> > +39      common  mkdir                           sys_mkdir
> > +40      common  rmdir                           sys_rmdir
> > +41      common  dup                             sys_dup
> > +42      common  pipe                            sys_pipe
> > +43      common  times                           sys_times                       compat_sys_times
> > +44      common  getsockname                     sys_getsockname
> > +45      common  brk                             sys_brk
> > +46      common  setgid                          sys_setgid
> > +47      common  getgid                          sys_getgid
> > +48      common  signal                          sys_signal
> > +49      common  geteuid                         sys_geteuid
> > +50      common  getegid                         sys_getegid
> > +51      common  acct                            sys_acct
> > +52      common  umount2                         sys_umount
> > +53      common  getpeername                     sys_getpeername
> > +54      common  ioctl                           sys_ioctl                       compat_sys_ioctl
> > +55      common  fcntl                           sys_fcntl                       compat_sys_fcntl
> > +56      common  socketpair                      sys_socketpair
> > +57      common  setpgid                         sys_setpgid
> > +58      common  send                            sys_send
> > +59      common  uname                           sys_newuname
> > +60      common  umask                           sys_umask
> > +61      common  chroot                          sys_chroot
> > +62      common  ustat                           sys_ustat                       compat_sys_ustat
> > +63      common  dup2                            sys_dup2
> > +64      common  getppid                         sys_getppid
> > +65      common  getpgrp                         sys_getpgrp
> > +66      common  setsid                          sys_setsid
> > +67      common  pivot_root                      sys_pivot_root
> > +68      common  sgetmask                        sys_sgetmask                    sys32_unimplemented
> > +69      common  ssetmask                        sys_ssetmask                    sys32_unimplemented
> > +70      common  setreuid                        sys_setreuid
> > +71      common  setregid                        sys_setregid
> > +72      common  mincore                         sys_mincore
> > +73      common  sigpending                      sys_sigpending                  compat_sys_sigpending
> > +74      common  sethostname                     sys_sethostname
> > +75      common  setrlimit                       sys_setrlimit                   compat_sys_setrlimit
> > +76      common  getrlimit                       sys_getrlimit                   compat_sys_getrlimit
> > +77      common  getrusage                       sys_getrusage                   compat_sys_getrusage
> > +78      common  gettimeofday                    sys_gettimeofday                compat_sys_gettimeofday
> > +79      common  settimeofday                    sys_settimeofday                compat_sys_settimeofday
> > +80      common  getgroups                       sys_getgroups
> > +81      common  setgroups                       sys_setgroups
> > +82      common  sendto                          sys_sendto
> > +83      common  symlink                         sys_symlink
> > +84      common  lstat                           sys_newlstat                    compat_sys_newlstat
> > +85      common  readlink                        sys_readlink
> > +86      common  uselib                          sys_ni_syscall

Why uselib is declared, contrary to all the skipped syscalls below,
that were sys_ni_syscall previously? Only __NR_socketcall was explicitly
undefined in arch/parisc/include/uapi/asm/unistd.h.

> > +87      common  swapon                          sys_swapon
> > +88      common  reboot                          sys_reboot
> > +89      common  mmap2                           sys_mmap2
> > +90      common  mmap                            sys_mmap
> > +91      common  munmap                          sys_munmap
> > +92      common  truncate                        sys_truncate                    compat_sys_truncate
> > +93      common  ftruncate                       sys_ftruncate                   compat_sys_ftruncate
> > +94      common  fchmod                          sys_fchmod
> > +95      common  fchown                          sys_fchown
> > +96      common  getpriority                     sys_getpriority
> > +97      common  setpriority                     sys_setpriority
> > +98      common  recv                            sys_recv
> > +99      common  statfs                          sys_statfs                      compat_sys_statfs
> > +100     common  fstatfs                         sys_fstatfs                     compat_sys_fstatfs
> > +101     common  stat64                          sys_stat64

It is probably worth adding a comment here that syscall 102 was
socketcall, in order to make reason for this jump in syscall numeration
self-evident.

> > +103     common  syslog                          sys_syslog
> > +104     common  setitimer                       sys_setitimer                   compat_sys_setitimer
> > +105     common  getitimer                       sys_getitimer                   compat_sys_getitimer
> > +106     common  capget                          sys_capget
> > +107     common  capset                          sys_capset

> > +108     32      pread64                         parisc_pread64
> > +108     64      pread64                         sys_pread64                     parisc_pread64

It would be probably nice to have some syntax that would allow avoid
this duplication (as compat handler on 64 bit and native on 32 bit are
the same).

> > +109     32      pwrite64                        parisc_pwrite64
> > +109     64      pwrite64                        sys_pwrite64                    parisc_pwrite64
> > +110     common  getcwd                          sys_getcwd
> > +111     common  vhangup                         sys_vhangup
> > +112     common  fstat64                         sys_fstat64
> > +113     common  vfork                           sys_vfork_wrapper
> > +114     common  wait4                           sys_wait4                       compat_sys_wait4
> > +115     common  swapoff                         sys_swapoff
> > +116     common  sysinfo                         sys_sysinfo                     compat_sys_sysinfo
> > +117     common  shutdown                        sys_shutdown
> > +118     common  fsync                           sys_fsync
> > +119     common  madvise                         sys_madvise
> > +120     common  clone                           sys_clone_wrapper
> > +121     common  setdomainname                   sys_setdomainname
> > +122     common  sendfile                        sys_sendfile                    compat_sys_sendfile
> > +123     common  recvfrom                        sys_recvfrom
> > +124     common  adjtimex                        sys_adjtimex                    compat_sys_adjtimex
> > +125     common  mprotect                        sys_mprotect
> > +126     common  sigprocmask                     sys_sigprocmask                 compat_sys_sigprocmask

127 - create_module

> > +128     common  init_module                     sys_init_module
> > +129     common  delete_module                   sys_delete_module

130 - get_kernel_syms

> > +131     common  quotactl                        sys_quotactl
> > +132     common  getpgid                         sys_getpgid
> > +133     common  fchdir                          sys_fchdir
> > +134     common  bdflush                         sys_bdflush
> > +135     common  sysfs                           sys_sysfs
> > +136     32      personality                     parisc_personality
> > +136     64      personality                     sys_personality                 parisc_personality

136 - afs_syscall

> > +138     common  setfsuid                        sys_setfsuid
> > +139     common  setfsgid                        sys_setfsgid
> > +140     common  _llseek                         sys_llseek
> > +141     common  getdents                        sys_getdents                    compat_sys_getdents
> > +142     common  _newselect                      sys_select                      compat_sys_select
> > +143     common  flock                           sys_flock
> > +144     common  msync                           sys_msync
> > +145     common  readv                           sys_readv                       compat_sys_readv
> > +146     common  writev                          sys_writev                      compat_sys_writev
> > +147     common  getsid                          sys_getsid
> > +148     common  fdatasync                       sys_fdatasync
> > +149     common  _sysctl                         sys_sysctl                      compat_sys_sysctl
> > +150     common  mlock                           sys_mlock
> > +151     common  munlock                         sys_munlock
> > +152     common  mlockall                        sys_mlockall
> > +153     common  munlockall                      sys_munlockall
> > +154     common  sched_setparam                  sys_sched_setparam
> > +155     common  sched_getparam                  sys_sched_getparam
> > +156     common  sched_setscheduler              sys_sched_setscheduler
> > +157     common  sched_getscheduler              sys_sched_getscheduler
> > +158     common  sched_yield                     sys_sched_yield
> > +159     common  sched_get_priority_max          sys_sched_get_priority_max
> > +160     common  sched_get_priority_min          sys_sched_get_priority_min
> > +161     common  sched_rr_get_interval           sys_sched_rr_get_interval       compat_sys_sched_rr_get_interval
> > +162     common  nanosleep                       sys_nanosleep                   compat_sys_nanosleep
> > +163     common  mremap                          sys_mremap
> > +164     common  setresuid                       sys_setresuid
> > +165     common  getresuid                       sys_getresuid
> > +166     common  sigaltstack                     sys_sigaltstack                 compat_sys_sigaltstack

167 - query_module

> > +168     common  poll                            sys_poll

169 - nfsservctl

> > +170     common  setresgid                       sys_setresgid
> > +171     common  getresgid                       sys_getresgid
> > +172     common  prctl                           sys_prctl
> > +173     common  rt_sigreturn                    sys_rt_sigreturn
> > +174     common  rt_sigaction                    sys_rt_sigaction                compat_sys_rt_sigaction
> > +175     common  rt_sigprocmask                  sys_rt_sigprocmask              compat_sys_rt_sigprocmask
> > +176     common  rt_sigpending                   sys_rt_sigpending               compat_sys_rt_sigpending
> > +177     common  rt_sigtimedwait                 sys_rt_sigtimedwait             compat_sys_rt_sigtimedwait
> > +178     common  rt_sigqueueinfo                 sys_rt_sigqueueinfo             compat_sys_rt_sigqueueinfo
> > +179     common  rt_sigsuspend                   sys_rt_sigsuspend               compat_sys_rt_sigsuspend
> > +180     common  chown                           sys_chown
> > +181     common  setsockopt                      sys_setsockopt                  compat_sys_setsockopt
> > +182     common  getsockopt                      sys_getsockopt                  compat_sys_getsockopt
> > +183     common  sendmsg                         sys_sendmsg                     compat_sys_sendmsg
> > +184     common  recvmsg                         sys_recvmsg                     compat_sys_recvmsg
> > +185     common  semop                           sys_semop
> > +186     common  semget                          sys_semget
> > +187     common  semctl                          sys_semctl                      compat_sys_semctl
> > +188     common  msgsnd                          sys_msgsnd                      compat_sys_msgsnd
> > +189     common  msgrcv                          sys_msgrcv                      compat_sys_msgrcv
> > +190     common  msgget                          sys_msgget
> > +191     common  msgctl                          sys_msgctl                      compat_sys_msgctl
> > +192     common  shmat                           sys_shmat                       compat_sys_shmat
> > +193     common  shmdt                           sys_shmdt
> > +194     common  shmget                          sys_shmget
> > +195     common  shmctl                          sys_shmctl                      compat_sys_shmctl

196 - getpmsg
187 - putpmsg

> > +198     common  lstat64                         sys_lstat64
> > +199     32      truncate64                      parisc_truncate64
> > +199     64      truncate64                      sys_truncate64                  parisc_truncate64
> > +200     32      ftruncate64                     parisc_ftruncate64
> > +200     64      ftruncate64                     sys_ftruncate64                 parisc_ftruncate64
> > +201     common  getdents64                      sys_getdents64
> > +202     common  fcntl64                         sys_fcntl64                     compat_sys_fcntl64

203 - attrctl
204 - acl_get
205 - acl_set

> > +206     common  gettid                          sys_gettid
> > +207     32      readahead                       parisc_readahead
> > +207     64      readahead                       sys_readahead                   parisc_readahead
> > +208     common  tkill                           sys_tkill
> > +209     common  sendfile64                      sys_sendfile64                  compat_sys_sendfile64
> > +210     common  futex                           sys_futex                       compat_sys_futex
> > +211     common  sched_setaffinity               sys_sched_setaffinity           compat_sys_sched_setaffinity
> > +212     common  sched_getaffinity               sys_sched_getaffinity           compat_sys_sched_getaffinity

213 - set_thread_area
214 - get_thread_area

> > +215     common  io_setup                        sys_io_setup                    compat_sys_io_setup
> > +216     common  io_destroy                      sys_io_destroy
> > +217     common  io_getevents                    sys_io_getevents                compat_sys_io_getevents
> > +218     common  io_submit                       sys_io_submit                   compat_sys_io_submit
> > +219     common  io_cancel                       sys_io_cancel

220 - alloc_hugepages
221 - free_hugepages

> > +222     common  exit_group                      sys_exit_group
> > +223     common  lookup_dcookie                  sys_lookup_dcookie              compat_sys_lookup_dcookie
> > +224     common  epoll_create                    sys_epoll_create
> > +225     common  epoll_ctl                       sys_epoll_ctl
> > +226     common  epoll_wait                      sys_epoll_wait
> > +227     common  remap_file_pages                sys_remap_file_pages
> > +228     common  semtimedop                      sys_semtimedop                  compat_sys_semtimedop
> > +229     common  mq_open                         sys_mq_open                     compat_sys_mq_open
> > +230     common  mq_unlink                       sys_mq_unlink
> > +231     common  mq_timedsend                    sys_mq_timedsend                compat_sys_mq_timedsend
> > +232     common  mq_timedreceive                 sys_mq_timedreceive             compat_sys_mq_timedreceive
> > +233     common  mq_notify                       sys_mq_notify                   compat_sys_mq_notify
> > +234     common  mq_getsetattr                   sys_mq_getsetattr               compat_sys_mq_getsetattr
> > +235     common  waitid                          sys_waitid                      compat_sys_waitid
> > +236     32      fadvise64_64                    parisc_fadvise64_64
> > +236     64      fadvise64_64                    sys_fadvise64_64                parisc_fadvise64_64
> > +237     common  set_tid_address                 sys_set_tid_address
> > +238     common  setxattr                        sys_setxattr
> > +239     common  lsetxattr                       sys_lsetxattr
> > +240     common  fsetxattr                       sys_fsetxattr
> > +241     common  getxattr                        sys_getxattr
> > +242     common  lgetxattr                       sys_lgetxattr
> > +243     common  fgetxattr                       sys_fgetxattr
> > +244     common  listxattr                       sys_listxattr
> > +245     common  llistxattr                      sys_llistxattr
> > +246     common  flistxattr                      sys_flistxattr
> > +247     common  removexattr                     sys_removexattr
> > +248     common  lremovexattr                    sys_lremovexattr
> > +249     common  fremovexattr                    sys_fremovexattr
> > +250     common  timer_create                    sys_timer_create                compat_sys_timer_create
> > +251     common  timer_settime                   sys_timer_settime               compat_sys_timer_settime
> > +252     common  timer_gettime                   sys_timer_gettime               compat_sys_timer_gettime
> > +253     common  timer_getoverrun                sys_timer_getoverrun
> > +254     common  timer_delete                    sys_timer_delete
> > +255     common  clock_settime                   sys_clock_settime               compat_sys_clock_settime
> > +256     common  clock_gettime                   sys_clock_gettime               compat_sys_clock_gettime
> > +257     common  clock_getres                    sys_clock_getres                compat_sys_clock_getres
> > +258     common  clock_nanosleep                 sys_clock_nanosleep             compat_sys_clock_nanosleep
> > +259     common  tgkill                          sys_tgkill
> > +260     common  mbind                           sys_mbind                       compat_sys_mbind
> > +261     common  get_mempolicy                   sys_get_mempolicy               compat_sys_get_mempolicy
> > +262     common  set_mempolicy                   sys_set_mempolicy               compat_sys_set_mempolicy

263 - vserver

> > +264     common  add_key                         sys_add_key
> > +265     common  request_key                     sys_request_key
> > +266     common  keyctl                          sys_keyctl                      compat_sys_keyctl
> > +267     common  ioprio_set                      sys_ioprio_set
> > +268     common  ioprio_get                      sys_ioprio_get
> > +269     common  inotify_init                    sys_inotify_init
> > +270     common  inotify_add_watch               sys_inotify_add_watch
> > +271     common  inotify_rm_watch                sys_inotify_rm_watch
> > +272     common  migrate_pages                   sys_migrate_pages
> > +273     common  pselect6                        sys_pselect6                    compat_sys_pselect6
> > +274     common  ppoll                           sys_ppoll                       compat_sys_ppoll
> > +275     common  openat                          sys_openat                      compat_sys_openat
> > +276     common  mkdirat                         sys_mkdirat
> > +277     common  mknodat                         sys_mknodat
> > +278     common  fchownat                        sys_fchownat
> > +279     common  futimesat                       sys_futimesat                   compat_sys_futimesat
> > +280     common  fstatat64                       sys_fstatat64
> > +281     common  unlinkat                        sys_unlinkat
> > +282     common  renameat                        sys_renameat
> > +283     common  linkat                          sys_linkat
> > +284     common  symlinkat                       sys_symlinkat
> > +285     common  readlinkat                      sys_readlinkat
> > +286     common  fchmodat                        sys_fchmodat
> > +287     common  faccessat                       sys_faccessat
> > +288     common  unshare                         sys_unshare
> > +289     common  set_robust_list                 sys_set_robust_list             compat_sys_set_robust_list
> > +290     common  get_robust_list                 sys_get_robust_list             compat_sys_get_robust_list
> > +291     common  splice                          sys_splice
> > +292     32      sync_file_range                 parisc_sync_file_range
> > +292     64      sync_file_range                 sys_sync_file_range             parisc_sync_file_range
> > +293     common  tee                             sys_tee
> > +294     common  vmsplice                        sys_vmsplice                    compat_sys_vmsplice
> > +295     common  move_pages                      sys_move_pages                  compat_sys_move_pages
> > +296     common  getcpu                          sys_getcpu
> > +297     common  epoll_pwait                     sys_epoll_pwait                 compat_sys_epoll_pwait
> > +298     common  statfs64                        sys_statfs64                    compat_sys_statfs64
> > +299     common  fstatfs64                       sys_fstatfs64                   compat_sys_fstatfs64
> > +300     common  kexec_load                      sys_kexec_load                  compat_sys_kexec_load
> > +301     common  utimensat                       sys_utimensat                   compat_sys_utimensat
> > +302     common  signalfd                        sys_signalfd                    compat_sys_signalfd

303 - timerfd

> > +304     common  eventfd                         sys_eventfd
> > +305     32      fallocate                       parisc_fallocate
> > +305     64      fallocate                       sys_fallocate                   parisc_fallocate
> > +306     common  timerfd_create                  sys_timerfd_create
> > +307     common  timerfd_settime                 sys_timerfd_settime             compat_sys_timerfd_settime
> > +308     common  timerfd_gettime                 sys_timerfd_gettime             compat_sys_timerfd_gettime
> > +309     common  signalfd4                       sys_signalfd4                   compat_sys_signalfd4
> > +310     common  eventfd2                        sys_eventfd2
> > +311     common  epoll_create1                   sys_epoll_create1
> > +312     common  dup3                            sys_dup3
> > +313     common  pipe2                           sys_pipe2
> > +314     common  inotify_init1                   sys_inotify_init1
> > +315     common  preadv                          sys_preadv                      compat_sys_preadv
> > +316     common  pwritev                         sys_pwritev                     compat_sys_pwritev
> > +317     common  rt_tgsigqueueinfo               sys_rt_tgsigqueueinfo           compat_sys_rt_tgsigqueueinfo
> > +318     common  perf_event_open                 sys_perf_event_open
> > +319     common  recvmmsg                        sys_recvmmsg                    compat_sys_recvmmsg
> > +320     common  accept4                         sys_accept4
> > +321     common  prlimit64                       sys_prlimit64
> > +322     common  fanotify_init                   sys_fanotify_init
> > +323     common  fanotify_mark                   sys_fanotify_mark               sys32_fanotify_mark
> > +324     common  clock_adjtime                   sys_clock_adjtime               compat_sys_clock_adjtime
> > +325     common  name_to_handle_at               sys_name_to_handle_at
> > +326     common  open_by_handle_at               sys_open_by_handle_at           compat_sys_open_by_handle_at
> > +327     common  syncfs                          sys_syncfs
> > +328     common  setns                           sys_setns
> > +329     common  sendmmsg                        sys_sendmmsg                    compat_sys_sendmmsg
> > +330     common  process_vm_readv                sys_process_vm_readv            compat_sys_process_vm_readv
> > +331     common  process_vm_writev               sys_process_vm_writev           compat_sys_process_vm_writev
> > +332     common  kcmp                            sys_kcmp
> > +333     common  finit_module                    sys_finit_module
> > +334     common  sched_setattr                   sys_sched_setattr
> > +335     common  sched_getattr                   sys_sched_getattr
> > +336     common  utimes                          sys_utimes                      compat_sys_utimes
> > +337     common  renameat2                       sys_renameat2
> > +338     common  seccomp                         sys_seccomp
> > +339     common  getrandom                       sys_getrandom
> > +340     common  memfd_create                    sys_memfd_create
> > +341     common  bpf                             sys_bpf
> > +342     common  execveat                        sys_execveat                    compat_sys_execveat
> > +343     common  membarrier                      sys_membarrier
> > +344     common  userfaultfd                     sys_userfaultfd
> > +345     common  mlock2                          sys_mlock2
> > +346     common  copy_file_range                 sys_copy_file_range
> > +347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
> > +348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
> > +349     common  statx                           sys_statx
> > +350    common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> > \ No newline at end of file


From - Thu Nov 08 21:42:09 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 3/6] parisc: add system call table generation support
Date: Mon, 8 Oct 2018 15:56:53 +0200
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References: <1538975801-13735-1-git-send-email-firoz.khan@linaro.org>
 <1538975801-13735-4-git-send-email-firoz.khan@linaro.org> <CALxhOnj4r_MUuAa2zvkvxvhQttEvCZ98n2dA9d6CYyvVf2rB3g@mail.gmail.com>
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Cc: Firoz Khan <firoz.khan@linaro.org>,
        Parisc List <linux-parisc@vger.kernel.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
        gregkh <gregkh@linuxfoundation.org>,
        Philippe Ombredanne <pombredanne@nexb.com>,
        Kate Stewart <kstewart@linuxfoundation.org>,
        y2038 Mailman List <y2038@lists.linaro.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        linux-arch <linux-arch@vger.kernel.org>,
        Deepa Dinamani <deepa.kernel@gmail.com>,
        Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
To: Eugene Syromiatnikov <esyr@redhat.com>
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On Mon, Oct 8, 2018 at 3:02 PM Eugene Syromiatnikov <esyr@redhat.com> wrote:
> > On Mon, 8 Oct 2018 at 10:47, Firoz Khan <firoz.khan@linaro.org> wrote:
> > > diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
>
> > > +84      common  lstat                           sys_newlstat                    compat_sys_newlstat
> > > +85      common  readlink                        sys_readlink
> > > +86      common  uselib                          sys_ni_syscall
>
> Why uselib is declared, contrary to all the skipped syscalls below,
> that were sys_ni_syscall previously? Only __NR_socketcall was explicitly
> undefined in arch/parisc/include/uapi/asm/unistd.h.

Good catch, I didn't see that in my earlier review. I agree we want the
files to be identical to the version they replace, so the macros need to
be there for now.

We may later decide to clean this up and remove all __NR_* that have
no entry point, but the conversion to the new table format needs to
otherwise be a nop.

> > > +87      common  swapon                          sys_swapon
> > > +88      common  reboot                          sys_reboot
> > > +89      common  mmap2                           sys_mmap2
> > > +90      common  mmap                            sys_mmap
> > > +91      common  munmap                          sys_munmap
> > > +92      common  truncate                        sys_truncate                    compat_sys_truncate
> > > +93      common  ftruncate                       sys_ftruncate                   compat_sys_ftruncate
> > > +94      common  fchmod                          sys_fchmod
> > > +95      common  fchown                          sys_fchown
> > > +96      common  getpriority                     sys_getpriority
> > > +97      common  setpriority                     sys_setpriority
> > > +98      common  recv                            sys_recv
> > > +99      common  statfs                          sys_statfs                      compat_sys_statfs
> > > +100     common  fstatfs                         sys_fstatfs                     compat_sys_fstatfs
> > > +101     common  stat64                          sys_stat64
>
> It is probably worth adding a comment here that syscall 102 was
> socketcall, in order to make reason for this jump in syscall numeration
> self-evident.

+1

In general, I'd argue we want to keep all the nontrivial comments that
were present in either unistd.h or syscall_table.S.

> > > +103     common  syslog                          sys_syslog
> > > +104     common  setitimer                       sys_setitimer                   compat_sys_setitimer
> > > +105     common  getitimer                       sys_getitimer                   compat_sys_getitimer
> > > +106     common  capget                          sys_capget
> > > +107     common  capset                          sys_capset
>
> > > +108     32      pread64                         parisc_pread64
> > > +108     64      pread64                         sys_pread64                     parisc_pread64
>
> It would be probably nice to have some syntax that would allow avoid
> this duplication (as compat handler on 64 bit and native on 32 bit are
> the same).

I think I would prefer to have the compat table be generated with the '32'
abi rather than the '64' abi, so we end up with

108     32      pread64                         parisc_pread64
   parisc_pread64
108     64      pread64                         sys_pread64

I think this makes more sense, in particular on the other architectures
that have different macro names in some cases. When we do this,
the entries could get compressed to

108     32      pread64                         parisc_pread64
108     64      pread64                         sys_pread64

> > > +348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
> > > +349     common  statx                           sys_statx
> > > +350    common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> > > \ No newline at end of file

As others have commented several times, Firoz still needs to fix
the missing newline.

Firoz, please fix all the newlines before you repost any further
patches.

      Arnd


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On 08.10.2018 07:16, Firoz Khan wrote:
> System call table generation script must be run to generate
> unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
> will have changes which will invokes the script.
> 
> This patch will generate unistd_32/64.h and syscall_table_
> 32/64/c32.h files by the syscall table generation script
> invoked by arch/parisc/Makefile and the generated files against
> the removed files will be identical.
> 
> The generated uapi header file will be included in uapi/asm/
> unistd_32/64.h and generated system call table support file will
> be included by arch/sparc/kernel/syscall_table_32/64.S file.
> 
> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
...
> diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
> index f10d065..76e3a3b 100644
> --- a/arch/parisc/include/uapi/asm/unistd.h
> +++ b/arch/parisc/include/uapi/asm/unistd.h
> @@ -2,374 +2,13 @@
>  #ifndef _UAPI_ASM_PARISC_UNISTD_H_
>  #define _UAPI_ASM_PARISC_UNISTD_H_
>  
...
> -
> -#ifdef __KERNEL__
> -#define __NR_syscalls           351
> +#define __NR_Linux           0
> +#ifdef CONFIG_64BIT

You can't use CONFIG_64BIT in an uapi header file.
It's only defined inside the kernel when building the kernel.
Please use
	#ifdef __LP64__
instead here.

> +#include <asm/unistd_64.h>
> +#else
> +#include <asm/unistd_32.h>
>  #endif


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Hi Helge,

On Tue, 9 Oct 2018 at 01:13, Helge Deller <deller@gmx.de> wrote:
>
> On 08.10.2018 07:16, Firoz Khan wrote:
> > System call table generation script must be run to generate
> > unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
> > will have changes which will invokes the script.
> >
> > This patch will generate unistd_32/64.h and syscall_table_
> > 32/64/c32.h files by the syscall table generation script
> > invoked by arch/parisc/Makefile and the generated files against
> > the removed files will be identical.
> >
> > The generated uapi header file will be included in uapi/asm/
> > unistd_32/64.h and generated system call table support file will
> > be included by arch/sparc/kernel/syscall_table_32/64.S file.
> >
> > Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> ...
> > diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
> > index f10d065..76e3a3b 100644
> > --- a/arch/parisc/include/uapi/asm/unistd.h
> > +++ b/arch/parisc/include/uapi/asm/unistd.h
> > @@ -2,374 +2,13 @@
> >  #ifndef _UAPI_ASM_PARISC_UNISTD_H_
> >  #define _UAPI_ASM_PARISC_UNISTD_H_
> >
> ...
> > -
> > -#ifdef __KERNEL__
> > -#define __NR_syscalls           351
> > +#define __NR_Linux           0
> > +#ifdef CONFIG_64BIT
>
> You can't use CONFIG_64BIT in an uapi header file.
> It's only defined inside the kernel when building the kernel.
> Please use
>         #ifdef __LP64__
> instead here.

Sure.  Thanks!
Firoz

>
> > +#include <asm/unistd_64.h>
> > +#else
> > +#include <asm/unistd_32.h>
> >  #endif


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Xref: news.gmane.org gmane.linux.kernel:2893978 gmane.linux.ports.parisc:29109 gmane.linux.kernel.year-2038:3471 gmane.linux.kernel.cross-arch:47501
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Hi Eugene, Arnd,

On Mon, 8 Oct 2018 at 19:27, Arnd Bergmann <arnd@arndb.de> wrote:
>
> On Mon, Oct 8, 2018 at 3:02 PM Eugene Syromiatnikov <esyr@redhat.com> wrote:
> > > On Mon, 8 Oct 2018 at 10:47, Firoz Khan <firoz.khan@linaro.org> wrote:
> > > > diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> >
> > > > +84      common  lstat                           sys_newlstat                    compat_sys_newlstat
> > > > +85      common  readlink                        sys_readlink
> > > > +86      common  uselib                          sys_ni_syscall
> >
> > Why uselib is declared, contrary to all the skipped syscalls below,
> > that were sys_ni_syscall previously? Only __NR_socketcall was explicitly
> > undefined in arch/parisc/include/uapi/asm/unistd.h.
>
> Good catch, I didn't see that in my earlier review. I agree we want the
> files to be identical to the version they replace, so the macros need to
> be there for now.
>
> We may later decide to clean this up and remove all __NR_* that have
> no entry point, but the conversion to the new table format needs to
> otherwise be a nop.
>
> > > > +87      common  swapon                          sys_swapon
> > > > +88      common  reboot                          sys_reboot
> > > > +89      common  mmap2                           sys_mmap2
> > > > +90      common  mmap                            sys_mmap
> > > > +91      common  munmap                          sys_munmap
> > > > +92      common  truncate                        sys_truncate                    compat_sys_truncate
> > > > +93      common  ftruncate                       sys_ftruncate                   compat_sys_ftruncate
> > > > +94      common  fchmod                          sys_fchmod
> > > > +95      common  fchown                          sys_fchown
> > > > +96      common  getpriority                     sys_getpriority
> > > > +97      common  setpriority                     sys_setpriority
> > > > +98      common  recv                            sys_recv
> > > > +99      common  statfs                          sys_statfs                      compat_sys_statfs
> > > > +100     common  fstatfs                         sys_fstatfs                     compat_sys_fstatfs
> > > > +101     common  stat64                          sys_stat64
> >
> > It is probably worth adding a comment here that syscall 102 was
> > socketcall, in order to make reason for this jump in syscall numeration
> > self-evident.
>
> +1
>
> In general, I'd argue we want to keep all the nontrivial comments that
> were present in either unistd.h or syscall_table.S.

unistd_32.h, unistd_64.h, syscall_table_32.h, syscall_table_64.h and
syscall_table_c32.h
are generated files. unistd.h and syscall_table.S file include
generated files. I had the
support to keep the comments in the generated files.

Eg:- from github
https://github.com/frzkhn/system_call_table_generator/blob/5fe5fb5a3ad457b234e7600d8a4b61b2e3629acd/ia64/syscall.tbl#L105

But I got to know the generated file don't carry any license info and
comment section. That's
why I removed it from all architecture.

I'm ok to keep this support for all architecture. Please feel free to
comment here.

>
> > > > +103     common  syslog                          sys_syslog
> > > > +104     common  setitimer                       sys_setitimer                   compat_sys_setitimer
> > > > +105     common  getitimer                       sys_getitimer                   compat_sys_getitimer
> > > > +106     common  capget                          sys_capget
> > > > +107     common  capset                          sys_capset
> >
> > > > +108     32      pread64                         parisc_pread64
> > > > +108     64      pread64                         sys_pread64                     parisc_pread64
> >
> > It would be probably nice to have some syntax that would allow avoid
> > this duplication (as compat handler on 64 bit and native on 32 bit are
> > the same).
>
> I think I would prefer to have the compat table be generated with the '32'
> abi rather than the '64' abi, so we end up with
>
> 108     32      pread64                         parisc_pread64
>    parisc_pread64
> 108     64      pread64                         sys_pread64
>
> I think this makes more sense, in particular on the other architectures
> that have different macro names in some cases. When we do this,
> the entries could get compressed to
>
> 108     32      pread64                         parisc_pread64
> 108     64      pread64                         sys_pread64
>

Sure. I can do this thing. The above one may be applicable for parisc not other
architecture. So the scripts might be slightly different. If we keep a
standard way,
the script will be unique. So the only difference will be Makefile and
.tbl files for all
architecture; I think that is our one of the goal.

> > > > +348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
> > > > +349     common  statx                           sys_statx
> > > > +350    common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> > > > \ No newline at end of file
>
> As others have commented several times, Firoz still needs to fix
> the missing newline.

Sure. I was wondering why the checkpatch script is not catching this one.
Where ever I came across I fixed it.

Thanks
Firoz

>
> Firoz, please fix all the newlines before you repost any further
> patches.
>
>       Arnd


From - Thu Nov 08 21:42:09 2018
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 3/6] parisc: add system call table generation support
Date: Tue, 9 Oct 2018 11:10:32 +0530
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Approved: news@gmane.org
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 <1538975801-13735-4-git-send-email-firoz.khan@linaro.org> <CALxhOnj4r_MUuAa2zvkvxvhQttEvCZ98n2dA9d6CYyvVf2rB3g@mail.gmail.com>
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Cc: esyr@redhat.com, linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Philippe Ombredanne <pombredanne@nexb.com>,
        Kate Stewart <kstewart@linuxfoundation.org>,
        y2038 Mailman List <y2038@lists.linaro.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux-Arch <linux-arch@vger.kernel.org>,
        Deepa Dinamani <deepa.kernel@gmail.com>,
        Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
To: Arnd Bergmann <arnd@arndb.de>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2893980>

On Tue, 9 Oct 2018 at 11:05, Firoz Khan <firoz.khan@linaro.org> wrote:
>
> Hi Eugene, Arnd,
>
> On Mon, 8 Oct 2018 at 19:27, Arnd Bergmann <arnd@arndb.de> wrote:
> >
> > On Mon, Oct 8, 2018 at 3:02 PM Eugene Syromiatnikov <esyr@redhat.com> wrote:
> > > > On Mon, 8 Oct 2018 at 10:47, Firoz Khan <firoz.khan@linaro.org> wrote:
> > > > > diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> > >
> > > > > +84      common  lstat                           sys_newlstat                    compat_sys_newlstat
> > > > > +85      common  readlink                        sys_readlink
> > > > > +86      common  uselib                          sys_ni_syscall
> > >
> > > Why uselib is declared, contrary to all the skipped syscalls below,
> > > that were sys_ni_syscall previously? Only __NR_socketcall was explicitly
> > > undefined in arch/parisc/include/uapi/asm/unistd.h.
> >
> > Good catch, I didn't see that in my earlier review. I agree we want the
> > files to be identical to the version they replace, so the macros need to
> > be there for now.
> >
> > We may later decide to clean this up and remove all __NR_* that have
> > no entry point, but the conversion to the new table format needs to
> > otherwise be a nop.
> >
> > > > > +87      common  swapon                          sys_swapon
> > > > > +88      common  reboot                          sys_reboot
> > > > > +89      common  mmap2                           sys_mmap2
> > > > > +90      common  mmap                            sys_mmap
> > > > > +91      common  munmap                          sys_munmap
> > > > > +92      common  truncate                        sys_truncate                    compat_sys_truncate
> > > > > +93      common  ftruncate                       sys_ftruncate                   compat_sys_ftruncate
> > > > > +94      common  fchmod                          sys_fchmod
> > > > > +95      common  fchown                          sys_fchown
> > > > > +96      common  getpriority                     sys_getpriority
> > > > > +97      common  setpriority                     sys_setpriority
> > > > > +98      common  recv                            sys_recv
> > > > > +99      common  statfs                          sys_statfs                      compat_sys_statfs
> > > > > +100     common  fstatfs                         sys_fstatfs                     compat_sys_fstatfs
> > > > > +101     common  stat64                          sys_stat64
> > >
> > > It is probably worth adding a comment here that syscall 102 was
> > > socketcall, in order to make reason for this jump in syscall numeration
> > > self-evident.
> >
> > +1
> >
> > In general, I'd argue we want to keep all the nontrivial comments that
> > were present in either unistd.h or syscall_table.S.
>
> unistd_32.h, unistd_64.h, syscall_table_32.h, syscall_table_64.h and
> syscall_table_c32.h
> are generated files. unistd.h and syscall_table.S file include
> generated files. I had the
> support to keep the comments in the generated files.
>
> Eg:- from github
> https://github.com/frzkhn/system_call_table_generator/blob/5fe5fb5a3ad457b234e7600d8a4b61b2e3629acd/ia64/syscall.tbl#L105
>
> But I got to know the generated file don't carry any license info and
> comment section. That's
> why I removed it from all architecture.
>
> I'm ok to keep this support for all architecture. Please feel free to
> comment here.

My suggestion is to leave the non trivial comments only in the .tbl file.

Thanks
Firoz

>
> >
> > > > > +103     common  syslog                          sys_syslog
> > > > > +104     common  setitimer                       sys_setitimer                   compat_sys_setitimer
> > > > > +105     common  getitimer                       sys_getitimer                   compat_sys_getitimer
> > > > > +106     common  capget                          sys_capget
> > > > > +107     common  capset                          sys_capset
> > >
> > > > > +108     32      pread64                         parisc_pread64
> > > > > +108     64      pread64                         sys_pread64                     parisc_pread64
> > >
> > > It would be probably nice to have some syntax that would allow avoid
> > > this duplication (as compat handler on 64 bit and native on 32 bit are
> > > the same).
> >
> > I think I would prefer to have the compat table be generated with the '32'
> > abi rather than the '64' abi, so we end up with
> >
> > 108     32      pread64                         parisc_pread64
> >    parisc_pread64
> > 108     64      pread64                         sys_pread64
> >
> > I think this makes more sense, in particular on the other architectures
> > that have different macro names in some cases. When we do this,
> > the entries could get compressed to
> >
> > 108     32      pread64                         parisc_pread64
> > 108     64      pread64                         sys_pread64
> >
>
> Sure. I can do this thing. The above one may be applicable for parisc not other
> architecture. So the scripts might be slightly different. If we keep a
> standard way,
> the script will be unique. So the only difference will be Makefile and
> .tbl files for all
> architecture; I think that is our one of the goal.
>
> > > > > +348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
> > > > > +349     common  statx                           sys_statx
> > > > > +350    common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> > > > > \ No newline at end of file
> >
> > As others have commented several times, Firoz still needs to fix
> > the missing newline.
>
> Sure. I was wondering why the checkpatch script is not catching this one.
> Where ever I came across I fixed it.
>
> Thanks
> Firoz
>
> >
> > Firoz, please fix all the newlines before you repost any further
> > patches.
> >
> >       Arnd


From - Thu Nov 08 21:42:09 2018
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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 3/6] parisc: add system call table generation support
Date: Tue, 9 Oct 2018 09:47:48 +0200
Lines: 83
Approved: news@gmane.org
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Cc: Eugene Syromiatnikov <esyr@redhat.com>,
        Parisc List <linux-parisc@vger.kernel.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
        gregkh <gregkh@linuxfoundation.org>,
        Philippe Ombredanne <pombredanne@nexb.com>,
        Kate Stewart <kstewart@linuxfoundation.org>,
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To: Firoz Khan <firoz.khan@linaro.org>
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On Tue, Oct 9, 2018 at 7:35 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> On Mon, 8 Oct 2018 at 19:27, Arnd Bergmann <arnd@arndb.de> wrote:
> > On Mon, Oct 8, 2018 at 3:02 PM Eugene Syromiatnikov <esyr@redhat.com> wrote:
> > > > > +87      common  swapon                          sys_swapon
> > > > > +88      common  reboot                          sys_reboot
> > > > > +89      common  mmap2                           sys_mmap2
> > > > > +90      common  mmap                            sys_mmap
> > > > > +91      common  munmap                          sys_munmap
> > > > > +92      common  truncate                        sys_truncate                    compat_sys_truncate
> > > > > +93      common  ftruncate                       sys_ftruncate                   compat_sys_ftruncate
> > > > > +94      common  fchmod                          sys_fchmod
> > > > > +95      common  fchown                          sys_fchown
> > > > > +96      common  getpriority                     sys_getpriority
> > > > > +97      common  setpriority                     sys_setpriority
> > > > > +98      common  recv                            sys_recv
> > > > > +99      common  statfs                          sys_statfs                      compat_sys_statfs
> > > > > +100     common  fstatfs                         sys_fstatfs                     compat_sys_fstatfs
> > > > > +101     common  stat64                          sys_stat64
> > >
> > > It is probably worth adding a comment here that syscall 102 was
> > > socketcall, in order to make reason for this jump in syscall numeration
> > > self-evident.
> >
> > +1
> >
> > In general, I'd argue we want to keep all the nontrivial comments that
> > were present in either unistd.h or syscall_table.S.
>
> unistd_32.h, unistd_64.h, syscall_table_32.h, syscall_table_64.h and
> syscall_table_c32.h
> are generated files. unistd.h and syscall_table.S file include
> generated files. I had the
> support to keep the comments in the generated files.
>
> Eg:- from github
> https://github.com/frzkhn/system_call_table_generator/blob/5fe5fb5a3ad457b234e7600d8a4b61b2e3629acd/ia64/syscall.tbl#L105
>
> But I got to know the generated file don't carry any license info and
> comment section. That's
> why I removed it from all architecture.
>
> I'm ok to keep this support for all architecture. Please feel free to
> comment here.

I meant just have the comments in the .tbl file, but not act on them.
One way to do this would be to let the script ignore everything
past the first '#' character in a line by passing it through 'sed -e "s:#.*$::"'
or a similar step (there is probably a nicer way to do this with
shell built-ins).

> > I think this makes more sense, in particular on the other architectures
> > that have different macro names in some cases. When we do this,
> > the entries could get compressed to
> >
> > 108     32      pread64                         parisc_pread64
> > 108     64      pread64                         sys_pread64
> >
>
> Sure. I can do this thing. The above one may be applicable for parisc not other
> architecture. So the scripts might be slightly different. If we keep a
> standard way,
> the script will be unique. So the only difference will be Makefile and
> .tbl files for all
> architecture; I think that is our one of the goal.

I would expect the above to actually be more important on other
architectures. E.g. on powerpc:

291     32    fstatat64        sys_fstatat64      sys_fstatat64
291     64    newfstatat     newfstatat

or (simplified)

291     32    fstatat64        sys_fstatat64
291     64    newfstatat     newfstatat

makes much more sense than

291     32    fstatat64        sys_fstatat64
291     64    newfstatat     newfstatat           sys_fstatat64

        Arnd


From - Thu Nov 08 21:42:09 2018
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 3/6] parisc: add system call table generation support
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        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
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To: Arnd Bergmann <arnd@arndb.de>
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Hi Arnd,

On Tue, 9 Oct 2018 at 13:18, Arnd Bergmann <arnd@arndb.de> wrote:
>
> On Tue, Oct 9, 2018 at 7:35 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > On Mon, 8 Oct 2018 at 19:27, Arnd Bergmann <arnd@arndb.de> wrote:
> > > On Mon, Oct 8, 2018 at 3:02 PM Eugene Syromiatnikov <esyr@redhat.com> wrote:
> > > > > > +87      common  swapon                          sys_swapon
> > > > > > +88      common  reboot                          sys_reboot
> > > > > > +89      common  mmap2                           sys_mmap2
> > > > > > +90      common  mmap                            sys_mmap
> > > > > > +91      common  munmap                          sys_munmap
> > > > > > +92      common  truncate                        sys_truncate                    compat_sys_truncate
> > > > > > +93      common  ftruncate                       sys_ftruncate                   compat_sys_ftruncate
> > > > > > +94      common  fchmod                          sys_fchmod
> > > > > > +95      common  fchown                          sys_fchown
> > > > > > +96      common  getpriority                     sys_getpriority
> > > > > > +97      common  setpriority                     sys_setpriority
> > > > > > +98      common  recv                            sys_recv
> > > > > > +99      common  statfs                          sys_statfs                      compat_sys_statfs
> > > > > > +100     common  fstatfs                         sys_fstatfs                     compat_sys_fstatfs
> > > > > > +101     common  stat64                          sys_stat64
> > > >
> > > > It is probably worth adding a comment here that syscall 102 was
> > > > socketcall, in order to make reason for this jump in syscall numeration
> > > > self-evident.
> > >
> > > +1
> > >
> > > In general, I'd argue we want to keep all the nontrivial comments that
> > > were present in either unistd.h or syscall_table.S.
> >
> > unistd_32.h, unistd_64.h, syscall_table_32.h, syscall_table_64.h and
> > syscall_table_c32.h
> > are generated files. unistd.h and syscall_table.S file include
> > generated files. I had the
> > support to keep the comments in the generated files.
> >
> > Eg:- from github
> > https://github.com/frzkhn/system_call_table_generator/blob/5fe5fb5a3ad457b234e7600d8a4b61b2e3629acd/ia64/syscall.tbl#L105
> >
> > But I got to know the generated file don't carry any license info and
> > comment section. That's
> > why I removed it from all architecture.
> >
> > I'm ok to keep this support for all architecture. Please feel free to
> > comment here.
>
> I meant just have the comments in the .tbl file, but not act on them.
> One way to do this would be to let the script ignore everything
> past the first '#' character in a line by passing it through 'sed -e "s:#.*$::"'
> or a similar step (there is probably a nicer way to do this with
> shell built-ins).

Sure, I can keep the comments in the .tbl file for all architecture. But
generated file doesn't have the comments.

>
> > > I think this makes more sense, in particular on the other architectures
> > > that have different macro names in some cases. When we do this,
> > > the entries could get compressed to
> > >
> > > 108     32      pread64                         parisc_pread64
> > > 108     64      pread64                         sys_pread64
> > >
> >
> > Sure. I can do this thing. The above one may be applicable for parisc not other
> > architecture. So the scripts might be slightly different. If we keep a
> > standard way,
> > the script will be unique. So the only difference will be Makefile and
> > .tbl files for all
> > architecture; I think that is our one of the goal.
>
> I would expect the above to actually be more important on other
> architectures. E.g. on powerpc:
>
> 291     32    fstatat64        sys_fstatat64      sys_fstatat64
> 291     64    newfstatat     newfstatat
>
> or (simplified)
>
> 291     32    fstatat64        sys_fstatat64
> 291     64    newfstatat     sys_newfstatat

In parisc, I'll go with the above model.

Let me bring another example from powerpc:

syscall_32.tbl,
136     common  personality                     sys_personality
         ppc64_personality   ---> 32-bit, compat (this is the current
model which I implemented)
syscall_64.tbl
136     common  personality                     ppc64_personality
                                       ---> 64-bit

I was wondering if the above table is right, how to arrange like parisc model?
FYI, there are some implement missing for SPU in powerpc

For your reference:
SYSX_SPU(sys_newfstatat,sys_fstatat64,sys_fstatat64)
SYSX_SPU(ppc64_personality,ppc64_personality,sys_personality)

Thanks
Firoz
>
> makes much more sense than
>
> 291     32    fstatat64        sys_fstatat64
> 291     64    newfstatat     newfstatat           sys_fstatat64
>
>         Arnd


From - Thu Nov 08 21:42:09 2018
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 3/6] parisc: add system call table generation support
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To: Firoz Khan <firoz.khan@linaro.org>
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On Tue, Oct 9, 2018 at 11:36 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> On Tue, 9 Oct 2018 at 13:18, Arnd Bergmann <arnd@arndb.de> wrote:
> > On Tue, Oct 9, 2018 at 7:35 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > > On Mon, 8 Oct 2018 at 19:27, Arnd Bergmann <arnd@arndb.de> wrote:
> Let me bring another example from powerpc:
>
> syscall_32.tbl,
> 136     common  personality                     sys_personality
>          ppc64_personality   ---> 32-bit, compat (this is the current
> model which I implemented)
> syscall_64.tbl
> 136     common  personality                     ppc64_personality
>                                        ---> 64-bit
>
> I was wondering if the above table is right, how to arrange like parisc model?

I think this should simply be

136    32 personality sys_personality      ppc64_personality
136    64 personality ppc64_personality

Keeping the contents exactly the same as you have them
in the separate .tbl files, just merging the two files, and
splitting out the differences as 32/64 ABI.

> FYI, there are some implement missing for SPU in powerpc
>
> For your reference:
> SYSX_SPU(sys_newfstatat,sys_fstatat64,sys_fstatat64)
> SYSX_SPU(ppc64_personality,ppc64_personality,sys_personality)

This is a good question. The only difference between SPU and
native 64-bit is that some syscalls are not part of the SPU table
because those syscalls are impossible to implement on SPU.

Maybe we can solve this by allowing multiple comma-separated
ABIs in the table. On powerpc, 'common' would then mean
'32-bit, 64-bit and spu', while you could have various other
combinations:

/* always:32, 64 and SPU */
1 common exit sys_exit

/* 32-bit only call */
76  32    getrlimit      sys_old_getrlimit     compat_sys_old_getrlimit

/* 64-bit only, no SPU */
363 64 switch_endian  sys_switch_endian

/* 32-bit and 64-bit, no SPU */
198 32,64 pciconfig_read  sys_pciconfig_read

/* different pointers */
136    32 personality sys_personality      ppc64_personality
136    64,spu personality ppc64_personality

Would that work for you?

       Arnd


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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 3/6] parisc: add system call table generation support
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Cc: esyr@redhat.com, linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
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To: Arnd Bergmann <arnd@arndb.de>
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Hi Arnd,

On Tue, 9 Oct 2018 at 16:58, Arnd Bergmann <arnd@arndb.de> wrote:
>
> On Tue, Oct 9, 2018 at 11:36 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > On Tue, 9 Oct 2018 at 13:18, Arnd Bergmann <arnd@arndb.de> wrote:
> > > On Tue, Oct 9, 2018 at 7:35 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > > > On Mon, 8 Oct 2018 at 19:27, Arnd Bergmann <arnd@arndb.de> wrote:
> > Let me bring another example from powerpc:
> >
> > syscall_32.tbl,
> > 136     common  personality                     sys_personality
> >          ppc64_personality   ---> 32-bit, compat (this is the current
> > model which I implemented)
> > syscall_64.tbl
> > 136     common  personality                     ppc64_personality
> >                                        ---> 64-bit
> >
> > I was wondering if the above table is right, how to arrange like parisc model?
>
> I think this should simply be
>
> 136    32 personality sys_personality      ppc64_personality
> 136    64 personality ppc64_personality
>
> Keeping the contents exactly the same as you have them
> in the separate .tbl files, just merging the two files, and
> splitting out the differences as 32/64 ABI.
>
> > FYI, there are some implement missing for SPU in powerpc
> >
> > For your reference:
> > SYSX_SPU(sys_newfstatat,sys_fstatat64,sys_fstatat64)
> > SYSX_SPU(ppc64_personality,ppc64_personality,sys_personality)
>
> This is a good question. The only difference between SPU and
> native 64-bit is that some syscalls are not part of the SPU table
> because those syscalls are impossible to implement on SPU.
>
> Maybe we can solve this by allowing multiple comma-separated
> ABIs in the table. On powerpc, 'common' would then mean
> '32-bit, 64-bit and spu', while you could have various other
> combinations:
>
> /* always:32, 64 and SPU */
> 1 common exit sys_exit
>
> /* 32-bit only call */
> 76  32    getrlimit      sys_old_getrlimit     compat_sys_old_getrlimit
>
> /* 64-bit only, no SPU */
> 363 64 switch_endian  sys_switch_endian
>
> /* 32-bit and 64-bit, no SPU */
> 198 32,64 pciconfig_read  sys_pciconfig_read
>
> /* different pointers */
> 136    32 personality sys_personality      ppc64_personality
> 136    64,spu personality ppc64_personality
>
> Would that work for you?

At this point, yes. V2 patches for powerpc on my pipeline. I can bring
the above points when I start creating those patches.

Thanks
Firoz
>
>        Arnd


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To: Firoz Khan <firoz.khan@linaro.org>
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* Firoz Khan <firoz.khan@linaro.org>:
> System call table generation script must be run to generate
> unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
> will have changes which will invokes the script.
> 
> This patch will generate unistd_32/64.h and syscall_table_
> 32/64/c32.h files by the syscall table generation script
> invoked by arch/parisc/Makefile and the generated files against
> the removed files will be identical.
> 
> The generated uapi header file will be included in uapi/asm/
> unistd_32/64.h and generated system call table support file will
> be included by arch/sparc/kernel/syscall_table_32/64.S file.
> 
> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> ---
>  arch/parisc/Makefile                  |   4 +
>  arch/parisc/include/asm/Kbuild        |   3 +
>  arch/parisc/include/uapi/asm/Kbuild   |   2 +
>  arch/parisc/include/uapi/asm/unistd.h | 373 +--------------------------
>  arch/parisc/kernel/syscall.S          |  12 +-
>  arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------


Can we please get rid of those two new files: 

>  arch/parisc/kernel/syscall_table_32.S |  13 +
>  arch/parisc/kernel/syscall_table_64.S |  20 ++

Both are not needed (at least on parisc) if you apply the following
patch on top of your patch series.
This patch finally fixes the 64-bit kernel on parisc (tested on real
hardware).

Helge

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 2523b83b88d8..45cddeeb968f 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -923,10 +923,20 @@ ENTRY(lws_table)
 END(lws_table)
 	/* End of lws table */
 
-#include "syscall_table_32.S"
+#define __SYSCALL(nr, entry, nargs) ASM_ULONG_INSN entry
+
+ENTRY(sys_call_table)
+#if defined(CONFIG_64BIT)
+#include <asm/syscall_table_c32.h>	/* compat syscalls */
+#else
+#include <asm/syscall_table_32.h>	/* 32-bit native syscalls */
+#endif
+END(sys_call_table)
+
 #ifdef CONFIG_64BIT
-#define SYSCALL_TABLE_64BIT
-#include "syscall_table_64.S"
+ENTRY(sys_call_table64)
+#include <asm/syscall_table_64.h>	/* 64-bit native syscalls */
+END(sys_call_table64)
 #endif
 
 	/*


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From: Leonardo Bras <leobras.c@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: Re: [PATCH v3 3/7] drivers: parisc: Avoids building driver if
 CONFIG_PARISC is disabled
Date: Tue, 9 Oct 2018 22:01:50 -0300
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References: <20180928020816.11251-1-leobras.c@gmail.com> <20180928020816.11251-4-leobras.c@gmail.com>
 <1538118915.3593.4.camel@HansenPartnership.com> <CADvQ+rGQenkoE0xCRTwjA5BuKZbZ2Upkyx=+qWFUGnUcit-aCQ@mail.gmail.com>
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Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
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Hello Michael,

> That already works, doesn't it? So all that you'd need is an offline
> tool to precompute what drivers to actually build with a given config.
>
> 'make -n' with some suitable output mangling might do the job.
>
> There may well be other ways to achieve your stated goal, without any
> need to make changes to the kernel build process (which is the result of
> many years of evolution and tuning, BTW).

Thanks for the info, I will try to use it.

> > This change is not supposed to bother the usual way of building the kernel, and
>
> Enough people have voiced their concern to warrant that you should back
> up that claim, IMO. Have you verified that your patchset does not change
> current behaviour when building the entire set of default configurations
> for each supported architecture? Does it reduce or increase overall
> complexity of the build process?
>
I have tried in some ARCHs and it worked fine. Out of curiosity, I
will try on all
of them.

> > it is not even supposed to add overhead to kernel compilation. And it would,
> > at least, solve my problem with the 3h limit, and enable the tool
> > I am building on GiltabCI to help other developers.
>
> (Apropos of nothing: Am I the only one who thinks gitlab might take a
> rather dim view of your creativity in dealing with their limit?)
>

They make available 50k minutes a month for OSS projects. I don't believe they
care how it's spent if its used to build/deploy the project. They even
allow using
several 'jobs' in parallel in order to speed up the process.

Thanks for your help,

Leonardo Bras


From - Thu Nov 08 21:42:09 2018
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Path: news.gmane.org!.POSTED!not-for-mail
From: Leonardo Bras <leobras.c@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.oprofile,gmane.linux.ports.parisc
Subject: Re: [PATCH v3 0/7] Remove errors building drivers/DRIVERNAME
Date: Tue, 9 Oct 2018 22:04:11 -0300
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References: <20180928020816.11251-1-leobras.c@gmail.com> <20181001075607.GA3776@rric.localdomain>
 <CADvQ+rETmm2Ag4sijXG-0Aya7B0oww7LkLgijAC+nznyWskkvg@mail.gmail.com>
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Cc: Robert Richter <rric@kernel.org>, lkcamp@lists.libreplanetbr.org,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
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To: Finn Thain <fthain@telegraphics.com.au>
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Thanks Finn, I will take a good look at that and try to use it in my build.

Thank you,
Leonardo Bras

On Wed, Oct 3, 2018 at 11:00 PM Finn Thain <fthain@telegraphics.com.au> wrote:
>
> On Wed, 3 Oct 2018, Leonardo Bras wrote:
>
> > Both ccache and distcc seem very interesting, I will take my time to
> > study them better as they can solve some situations I face. Thanks for
> > sharing!
> >
>
> You might also want to check out 'gcc -O0', 'gcc -fopt-info' and 'gcc
> --help=optimizers' etc to see if you can reduce the compute cost.
>
> To reduce IO cost, my build tests always use 'make O=/some/path' where
> /some/path is on a tmpfs mountpoint.
>
> HTH.
>
> --


From - Thu Nov 08 21:42:10 2018
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 4/6] parisc: uapi header and system call table file generation
Date: Thu, 11 Oct 2018 11:40:46 +0530
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References: <1538975801-13735-1-git-send-email-firoz.khan@linaro.org>
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Cc: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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To: Helge Deller <deller@gmx.de>
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Hi Helge,

On Wed, 10 Oct 2018 at 01:48, Helge Deller <deller@gmx.de> wrote:
>
> * Firoz Khan <firoz.khan@linaro.org>:
> > System call table generation script must be run to generate
> > unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
> > will have changes which will invokes the script.
> >
> > This patch will generate unistd_32/64.h and syscall_table_
> > 32/64/c32.h files by the syscall table generation script
> > invoked by arch/parisc/Makefile and the generated files against
> > the removed files will be identical.
> >
> > The generated uapi header file will be included in uapi/asm/
> > unistd_32/64.h and generated system call table support file will
> > be included by arch/sparc/kernel/syscall_table_32/64.S file.
> >
> > Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> > ---
> >  arch/parisc/Makefile                  |   4 +
> >  arch/parisc/include/asm/Kbuild        |   3 +
> >  arch/parisc/include/uapi/asm/Kbuild   |   2 +
> >  arch/parisc/include/uapi/asm/unistd.h | 373 +--------------------------
> >  arch/parisc/kernel/syscall.S          |  12 +-
> >  arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------
>
>
> Can we please get rid of those two new files:

Yes, we don't need those files some of the architecture and other
architecture does have same/similar files. That's why I added below
files, so every architecture implementation looks same.

I feel it is better to remove these files.
Arnd, Do u have any comment on this?

Thanks
Firoz

>
> >  arch/parisc/kernel/syscall_table_32.S |  13 +
> >  arch/parisc/kernel/syscall_table_64.S |  20 ++
>
> Both are not needed (at least on parisc) if you apply the following
> patch on top of your patch series.
> This patch finally fixes the 64-bit kernel on parisc (tested on real
> hardware).
>
> Helge
>
> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> index 2523b83b88d8..45cddeeb968f 100644
> --- a/arch/parisc/kernel/syscall.S
> +++ b/arch/parisc/kernel/syscall.S
> @@ -923,10 +923,20 @@ ENTRY(lws_table)
>  END(lws_table)
>         /* End of lws table */
>
> -#include "syscall_table_32.S"
> +#define __SYSCALL(nr, entry, nargs) ASM_ULONG_INSN entry
> +
> +ENTRY(sys_call_table)
> +#if defined(CONFIG_64BIT)
> +#include <asm/syscall_table_c32.h>     /* compat syscalls */
> +#else
> +#include <asm/syscall_table_32.h>      /* 32-bit native syscalls */
> +#endif
> +END(sys_call_table)
> +
>  #ifdef CONFIG_64BIT
> -#define SYSCALL_TABLE_64BIT
> -#include "syscall_table_64.S"
> +ENTRY(sys_call_table64)
> +#include <asm/syscall_table_64.h>      /* 64-bit native syscalls */
> +END(sys_call_table64)
>  #endif
>
>         /*


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Subject: Re: [PATCH v3 4/6] parisc: uapi header and system call table file generation
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Cc: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Philippe Ombredanne <pombredanne@nexb.com>,
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To: Helge Deller <deller@gmx.de>
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Xref: news.gmane.org gmane.linux.kernel:2896119 gmane.linux.ports.parisc:29119 gmane.linux.kernel.year-2038:3489 gmane.linux.kernel.cross-arch:47606
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Typo fixed!

On Thu, 11 Oct 2018 at 11:40, Firoz Khan <firoz.khan@linaro.org> wrote:
>
> Hi Helge,
>
> On Wed, 10 Oct 2018 at 01:48, Helge Deller <deller@gmx.de> wrote:
> >
> > * Firoz Khan <firoz.khan@linaro.org>:
> > > System call table generation script must be run to generate
> > > unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
> > > will have changes which will invokes the script.
> > >
> > > This patch will generate unistd_32/64.h and syscall_table_
> > > 32/64/c32.h files by the syscall table generation script
> > > invoked by arch/parisc/Makefile and the generated files against
> > > the removed files will be identical.
> > >
> > > The generated uapi header file will be included in uapi/asm/
> > > unistd_32/64.h and generated system call table support file will
> > > be included by arch/sparc/kernel/syscall_table_32/64.S file.
> > >
> > > Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> > > ---
> > >  arch/parisc/Makefile                  |   4 +
> > >  arch/parisc/include/asm/Kbuild        |   3 +
> > >  arch/parisc/include/uapi/asm/Kbuild   |   2 +
> > >  arch/parisc/include/uapi/asm/unistd.h | 373 +--------------------------
> > >  arch/parisc/kernel/syscall.S          |  12 +-
> > >  arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------
> >
> >
> > Can we please get rid of those two new files:
>
> Yes, we don't need those files some of the architecture and other
> architecture does have same/similar files. That's why I added below
Yes, we don't need those files some of the architecture does have ...

> files, so every architecture implementation looks same.
>
> I feel it is better to remove these files.
> Arnd, Do u have any comment on this?
>
> Thanks
> Firoz
>
> >
> > >  arch/parisc/kernel/syscall_table_32.S |  13 +
> > >  arch/parisc/kernel/syscall_table_64.S |  20 ++
> >
> > Both are not needed (at least on parisc) if you apply the following
> > patch on top of your patch series.
> > This patch finally fixes the 64-bit kernel on parisc (tested on real
> > hardware).
> >
> > Helge
> >
> > diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> > index 2523b83b88d8..45cddeeb968f 100644
> > --- a/arch/parisc/kernel/syscall.S
> > +++ b/arch/parisc/kernel/syscall.S
> > @@ -923,10 +923,20 @@ ENTRY(lws_table)
> >  END(lws_table)
> >         /* End of lws table */
> >
> > -#include "syscall_table_32.S"
> > +#define __SYSCALL(nr, entry, nargs) ASM_ULONG_INSN entry
> > +
> > +ENTRY(sys_call_table)
> > +#if defined(CONFIG_64BIT)
> > +#include <asm/syscall_table_c32.h>     /* compat syscalls */
> > +#else
> > +#include <asm/syscall_table_32.h>      /* 32-bit native syscalls */
> > +#endif
> > +END(sys_call_table)
> > +
> >  #ifdef CONFIG_64BIT
> > -#define SYSCALL_TABLE_64BIT
> > -#include "syscall_table_64.S"
> > +ENTRY(sys_call_table64)
> > +#include <asm/syscall_table_64.h>      /* 64-bit native syscalls */
> > +END(sys_call_table64)
> >  #endif
> >
> >         /*


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Subject: Re: [PATCH v3 4/6] parisc: uapi header and system call table file generation
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Cc: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Philippe Ombredanne <pombredanne@nexb.com>,
        Kate Stewart <kstewart@linuxfoundation.org>,
        y2038 Mailman List <y2038@lists.linaro.org>,
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        Arnd Bergmann <arnd@arndb.de>,
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To: Helge Deller <deller@gmx.de>
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Hi Helge,

On Thu, 11 Oct 2018 at 11:40, Firoz Khan <firoz.khan@linaro.org> wrote:
>
> Hi Helge,
>
> On Wed, 10 Oct 2018 at 01:48, Helge Deller <deller@gmx.de> wrote:
> >
> > * Firoz Khan <firoz.khan@linaro.org>:
> > > System call table generation script must be run to generate
> > > unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
> > > will have changes which will invokes the script.
> > >
> > > This patch will generate unistd_32/64.h and syscall_table_
> > > 32/64/c32.h files by the syscall table generation script
> > > invoked by arch/parisc/Makefile and the generated files against
> > > the removed files will be identical.
> > >
> > > The generated uapi header file will be included in uapi/asm/
> > > unistd_32/64.h and generated system call table support file will
> > > be included by arch/sparc/kernel/syscall_table_32/64.S file.
> > >
> > > Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> > > ---
> > >  arch/parisc/Makefile                  |   4 +
> > >  arch/parisc/include/asm/Kbuild        |   3 +
> > >  arch/parisc/include/uapi/asm/Kbuild   |   2 +
> > >  arch/parisc/include/uapi/asm/unistd.h | 373 +--------------------------
> > >  arch/parisc/kernel/syscall.S          |  12 +-
> > >  arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------
> >
> >
> > Can we please get rid of those two new files:
>
> Yes, we don't need those files some of the architecture and other
> architecture does have same/similar files. That's why I added below
> files, so every architecture implementation looks same.
>
> I feel it is better to remove these files.
> Arnd, Do u have any comment on this?
>
> Thanks
> Firoz
>
> >
> > >  arch/parisc/kernel/syscall_table_32.S |  13 +
> > >  arch/parisc/kernel/syscall_table_64.S |  20 ++
> >
> > Both are not needed (at least on parisc) if you apply the following
> > patch on top of your patch series.
> > This patch finally fixes the 64-bit kernel on parisc (tested on real
> > hardware).
> >
> > Helge
> >
> > diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> > index 2523b83b88d8..45cddeeb968f 100644
> > --- a/arch/parisc/kernel/syscall.S
> > +++ b/arch/parisc/kernel/syscall.S
> > @@ -923,10 +923,20 @@ ENTRY(lws_table)
> >  END(lws_table)
> >         /* End of lws table */
> >
> > -#include "syscall_table_32.S"
> > +#define __SYSCALL(nr, entry, nargs) ASM_ULONG_INSN entry
> > +
> > +ENTRY(sys_call_table)
> > +#if defined(CONFIG_64BIT)
> > +#include <asm/syscall_table_c32.h>     /* compat syscalls */
> > +#else
> > +#include <asm/syscall_table_32.h>      /* 32-bit native syscalls */
> > +#endif
> > +END(sys_call_table)
> > +
> >  #ifdef CONFIG_64BIT
> > -#define SYSCALL_TABLE_64BIT
> > -#include "syscall_table_64.S"
> > +ENTRY(sys_call_table64)
> > +#include <asm/syscall_table_64.h>      /* 64-bit native syscalls */
> > +END(sys_call_table64)
> >  #endif
> >
> >         /*

I could see a patch (commit 47514da3ac20150cdf764466fbc2010c0fca0163)
which will perform a compile-check when adding a new syscall. My patches
will remove this feature. Is that fine?

Firoz


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From: Arnd Bergmann <arnd@arndb.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 4/6] parisc: uapi header and system call table file generation
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To: Firoz Khan <firoz.khan@linaro.org>
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On Thu, Oct 11, 2018 at 8:48 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> On Thu, 11 Oct 2018 at 11:40, Firoz Khan <firoz.khan@linaro.org> wrote:
> > On Wed, 10 Oct 2018 at 01:48, Helge Deller <deller@gmx.de> wrote:

> > > +
> > > +ENTRY(sys_call_table)
> > > +#if defined(CONFIG_64BIT)
> > > +#include <asm/syscall_table_c32.h>     /* compat syscalls */
> > > +#else
> > > +#include <asm/syscall_table_32.h>      /* 32-bit native syscalls */
> > > +#endif
> > > +END(sys_call_table)
> > > +
> > >  #ifdef CONFIG_64BIT
> > > -#define SYSCALL_TABLE_64BIT
> > > -#include "syscall_table_64.S"
> > > +ENTRY(sys_call_table64)
> > > +#include <asm/syscall_table_64.h>      /* 64-bit native syscalls */
> > > +END(sys_call_table64)
> > >  #endif
> > >
> > >         /*
>
> I could see a patch (commit 47514da3ac20150cdf764466fbc2010c0fca0163)
> which will perform a compile-check when adding a new syscall. My patches
> will remove this feature. Is that fine?

I think it's ok: You are automating it so the bug can no longer happen,
which is better than adding checks to prevent human errors.

        Arnd


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Subject: Re: [PATCH v3 4/6] parisc: uapi header and system call table file generation
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To: Firoz Khan <firoz.khan@linaro.org>
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On Thu, Oct 11, 2018 at 8:10 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> On Wed, 10 Oct 2018 at 01:48, Helge Deller <deller@gmx.de> wrote:
> >
> > * Firoz Khan <firoz.khan@linaro.org>:
> > > System call table generation script must be run to generate
> > > unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
> > > will have changes which will invokes the script.
> > >
> > > This patch will generate unistd_32/64.h and syscall_table_
> > > 32/64/c32.h files by the syscall table generation script
> > > invoked by arch/parisc/Makefile and the generated files against
> > > the removed files will be identical.
> > >
> > > The generated uapi header file will be included in uapi/asm/
> > > unistd_32/64.h and generated system call table support file will
> > > be included by arch/sparc/kernel/syscall_table_32/64.S file.
> > >
> > > Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> > > ---
> > >  arch/parisc/Makefile                  |   4 +
> > >  arch/parisc/include/asm/Kbuild        |   3 +
> > >  arch/parisc/include/uapi/asm/Kbuild   |   2 +
> > >  arch/parisc/include/uapi/asm/unistd.h | 373 +--------------------------
> > >  arch/parisc/kernel/syscall.S          |  12 +-
> > >  arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------
> >
> >
> > Can we please get rid of those two new files:
>
> Yes, we don't need those files some of the architecture and other
> architecture does have same/similar files. That's why I added below
> files, so every architecture implementation looks same.
>
> I feel it is better to remove these files.
> Arnd, Do u have any comment on this?

I agree with Helge. This was a big different in a previous version where
you generated the syscall_table.S file from syscalls.tbl, but now that
you generade the syscall_table.h file instead, we no longer need to
keep the .S file synchronized across architectures.

Having a separate .S file would make it easier to replace that with
a .c file later, but it's also easier to split it out after your series than
as part of it.

      Arnd


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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 4/6] parisc: uapi header and system call table file generation
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Cc: Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org,
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        Thomas Gleixner <tglx@linutronix.de>,
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To: Arnd Bergmann <arnd@arndb.de>
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Hi Arnd,

On Thu, 11 Oct 2018 at 12:37, Arnd Bergmann <arnd@arndb.de> wrote:
>
> On Thu, Oct 11, 2018 at 8:10 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > On Wed, 10 Oct 2018 at 01:48, Helge Deller <deller@gmx.de> wrote:
> > >
> > > * Firoz Khan <firoz.khan@linaro.org>:
> > > > System call table generation script must be run to generate
> > > > unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
> > > > will have changes which will invokes the script.
> > > >
> > > > This patch will generate unistd_32/64.h and syscall_table_
> > > > 32/64/c32.h files by the syscall table generation script
> > > > invoked by arch/parisc/Makefile and the generated files against
> > > > the removed files will be identical.
> > > >
> > > > The generated uapi header file will be included in uapi/asm/
> > > > unistd_32/64.h and generated system call table support file will
> > > > be included by arch/sparc/kernel/syscall_table_32/64.S file.
> > > >
> > > > Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> > > > ---
> > > >  arch/parisc/Makefile                  |   4 +
> > > >  arch/parisc/include/asm/Kbuild        |   3 +
> > > >  arch/parisc/include/uapi/asm/Kbuild   |   2 +
> > > >  arch/parisc/include/uapi/asm/unistd.h | 373 +--------------------------
> > > >  arch/parisc/kernel/syscall.S          |  12 +-
> > > >  arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------
> > >
> > >
> > > Can we please get rid of those two new files:
> >
> > Yes, we don't need those files some of the architecture and other
> > architecture does have same/similar files. That's why I added below
> > files, so every architecture implementation looks same.
> >
> > I feel it is better to remove these files.
> > Arnd, Do u have any comment on this?
>
> I agree with Helge. This was a big different in a previous version where
> you generated the syscall_table.S file from syscalls.tbl, but now that
> you generade the syscall_table.h file instead, we no longer need to
> keep the .S file synchronized across architectures.
>
> Having a separate .S file would make it easier to replace that with
> a .c file later, but it's also easier to split it out after your series than
> as part of it.

Sure. Thanks for your comments.

Firoz

>
>       Arnd


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Subject: Re: [PATCH v3 4/6] parisc: uapi header and system call table file
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        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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To: Firoz Khan <firoz.khan@linaro.org>
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On 11.10.2018 08:48, Firoz Khan wrote:
> Hi Helge,
> 
> On Thu, 11 Oct 2018 at 11:40, Firoz Khan <firoz.khan@linaro.org> wrote:
>>
>> Hi Helge,
>>
>> On Wed, 10 Oct 2018 at 01:48, Helge Deller <deller@gmx.de> wrote:
>>>
>>> * Firoz Khan <firoz.khan@linaro.org>:
>>>> System call table generation script must be run to generate
>>>> unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
>>>> will have changes which will invokes the script.
>>>>
>>>> This patch will generate unistd_32/64.h and syscall_table_
>>>> 32/64/c32.h files by the syscall table generation script
>>>> invoked by arch/parisc/Makefile and the generated files against
>>>> the removed files will be identical.
>>>>
>>>> The generated uapi header file will be included in uapi/asm/
>>>> unistd_32/64.h and generated system call table support file will
>>>> be included by arch/sparc/kernel/syscall_table_32/64.S file.
>>>>
>>>> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
>>>> ---
>>>>  arch/parisc/Makefile                  |   4 +
>>>>  arch/parisc/include/asm/Kbuild        |   3 +
>>>>  arch/parisc/include/uapi/asm/Kbuild   |   2 +
>>>>  arch/parisc/include/uapi/asm/unistd.h | 373 +--------------------------
>>>>  arch/parisc/kernel/syscall.S          |  12 +-
>>>>  arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------
>>>
>>>
>>> Can we please get rid of those two new files:
>>
>> Yes, we don't need those files some of the architecture and other
>> architecture does have same/similar files. That's why I added below
>> files, so every architecture implementation looks same.
>>
>> I feel it is better to remove these files.
>> Arnd, Do u have any comment on this?
>>
>> Thanks
>> Firoz
>>
>>>
>>>>  arch/parisc/kernel/syscall_table_32.S |  13 +
>>>>  arch/parisc/kernel/syscall_table_64.S |  20 ++
>>>
>>> Both are not needed (at least on parisc) if you apply the following
>>> patch on top of your patch series.
>>> This patch finally fixes the 64-bit kernel on parisc (tested on real
>>> hardware).
>>>
>>> Helge
>>>
>>> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
>>> index 2523b83b88d8..45cddeeb968f 100644
>>> --- a/arch/parisc/kernel/syscall.S
>>> +++ b/arch/parisc/kernel/syscall.S
>>> @@ -923,10 +923,20 @@ ENTRY(lws_table)
>>>  END(lws_table)
>>>         /* End of lws table */
>>>
>>> -#include "syscall_table_32.S"
>>> +#define __SYSCALL(nr, entry, nargs) ASM_ULONG_INSN entry
>>> +
>>> +ENTRY(sys_call_table)
>>> +#if defined(CONFIG_64BIT)
>>> +#include <asm/syscall_table_c32.h>     /* compat syscalls */
>>> +#else
>>> +#include <asm/syscall_table_32.h>      /* 32-bit native syscalls */
>>> +#endif
>>> +END(sys_call_table)
>>> +
>>>  #ifdef CONFIG_64BIT
>>> -#define SYSCALL_TABLE_64BIT
>>> -#include "syscall_table_64.S"
>>> +ENTRY(sys_call_table64)
>>> +#include <asm/syscall_table_64.h>      /* 64-bit native syscalls */
>>> +END(sys_call_table64)
>>>  #endif
>>>
>>>         /*
> 
> I could see a patch (commit 47514da3ac20150cdf764466fbc2010c0fca0163)
> which will perform a compile-check when adding a new syscall. My patches
> will remove this feature. Is that fine?

Yes, removing that feature is OK.
Since everything is then autogenerated I don't expect such bugs.

Helge


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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v3 4/6] parisc: uapi header and system call table file generation
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Cc: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Philippe Ombredanne <pombredanne@nexb.com>,
        Kate Stewart <kstewart@linuxfoundation.org>,
        y2038 Mailman List <y2038@lists.linaro.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
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        Arnd Bergmann <arnd@arndb.de>,
        Deepa Dinamani <deepa.kernel@gmail.com>,
        Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
To: Helge Deller <deller@gmx.de>
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Hi Helge,

On Thu, 11 Oct 2018 at 15:57, Helge Deller <deller@gmx.de> wrote:
>
> On 11.10.2018 08:48, Firoz Khan wrote:
> > Hi Helge,
> >
> > On Thu, 11 Oct 2018 at 11:40, Firoz Khan <firoz.khan@linaro.org> wrote:
> >>
> >> Hi Helge,
> >>
> >> On Wed, 10 Oct 2018 at 01:48, Helge Deller <deller@gmx.de> wrote:
> >>>
> >>> * Firoz Khan <firoz.khan@linaro.org>:
> >>>> System call table generation script must be run to generate
> >>>> unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
> >>>> will have changes which will invokes the script.
> >>>>
> >>>> This patch will generate unistd_32/64.h and syscall_table_
> >>>> 32/64/c32.h files by the syscall table generation script
> >>>> invoked by arch/parisc/Makefile and the generated files against
> >>>> the removed files will be identical.
> >>>>
> >>>> The generated uapi header file will be included in uapi/asm/
> >>>> unistd_32/64.h and generated system call table support file will
> >>>> be included by arch/sparc/kernel/syscall_table_32/64.S file.
> >>>>
> >>>> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> >>>> ---
> >>>>  arch/parisc/Makefile                  |   4 +
> >>>>  arch/parisc/include/asm/Kbuild        |   3 +
> >>>>  arch/parisc/include/uapi/asm/Kbuild   |   2 +
> >>>>  arch/parisc/include/uapi/asm/unistd.h | 373 +--------------------------
> >>>>  arch/parisc/kernel/syscall.S          |  12 +-
> >>>>  arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------
> >>>
> >>>
> >>> Can we please get rid of those two new files:
> >>
> >> Yes, we don't need those files some of the architecture and other
> >> architecture does have same/similar files. That's why I added below
> >> files, so every architecture implementation looks same.
> >>
> >> I feel it is better to remove these files.
> >> Arnd, Do u have any comment on this?
> >>
> >> Thanks
> >> Firoz
> >>
> >>>
> >>>>  arch/parisc/kernel/syscall_table_32.S |  13 +
> >>>>  arch/parisc/kernel/syscall_table_64.S |  20 ++
> >>>
> >>> Both are not needed (at least on parisc) if you apply the following
> >>> patch on top of your patch series.
> >>> This patch finally fixes the 64-bit kernel on parisc (tested on real
> >>> hardware).
> >>>
> >>> Helge
> >>>
> >>> diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
> >>> index 2523b83b88d8..45cddeeb968f 100644
> >>> --- a/arch/parisc/kernel/syscall.S
> >>> +++ b/arch/parisc/kernel/syscall.S
> >>> @@ -923,10 +923,20 @@ ENTRY(lws_table)
> >>>  END(lws_table)
> >>>         /* End of lws table */
> >>>
> >>> -#include "syscall_table_32.S"
> >>> +#define __SYSCALL(nr, entry, nargs) ASM_ULONG_INSN entry
> >>> +
> >>> +ENTRY(sys_call_table)
> >>> +#if defined(CONFIG_64BIT)
> >>> +#include <asm/syscall_table_c32.h>     /* compat syscalls */
> >>> +#else
> >>> +#include <asm/syscall_table_32.h>      /* 32-bit native syscalls */
> >>> +#endif
> >>> +END(sys_call_table)
> >>> +
> >>>  #ifdef CONFIG_64BIT
> >>> -#define SYSCALL_TABLE_64BIT
> >>> -#include "syscall_table_64.S"
> >>> +ENTRY(sys_call_table64)
> >>> +#include <asm/syscall_table_64.h>      /* 64-bit native syscalls */
> >>> +END(sys_call_table64)
> >>>  #endif
> >>>
> >>>         /*
> >
> > I could see a patch (commit 47514da3ac20150cdf764466fbc2010c0fca0163)
> > which will perform a compile-check when adding a new syscall. My patches
> > will remove this feature. Is that fine?
>
> Yes, removing that feature is OK.
> Since everything is then autogenerated I don't expect such bugs.

Sure, thanks for your reply.

Firoz

>
> Helge


From - Thu Nov 08 21:42:10 2018
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From: "Joel Fernandes (Google)" <joel@joelfernandes.org>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH v2 1/2] treewide: remove unused address argument from
 pte_alloc functions
Date: Thu, 11 Oct 2018 18:37:55 -0700
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Approved: news@gmane.org
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/1032>

This series speeds up mremap(2) syscall by copying page tables at the
PMD level even for non-THP systems. There is concern that the extra
'address' argument that mremap passes to pte_alloc may do something
subtle architecture related in the future, that makes the scheme not
work.  Also we find that there is no point in passing the 'address' to
pte_alloc since its unused.

This patch therefore removes this argument tree-wide resulting in a nice
negative diff as well. Also ensuring along the way that the architecture
does not do anything funky with 'address' argument that goes unnoticed.

Build and boot tested on x86-64. Build tested on arm64.

The changes were obtained by applying the following Coccinelle script.
The pte_fragment_alloc was manually fixed up since it was only 2
occurences and could not be easily generalized (and thanks Julia for
answering all my silly and not-silly Coccinelle questions!).

// Options: --include-headers --no-includes
// Note: I split the 'identifier fn' line, so if you are manually
// running it, please unsplit it so it runs for you.

virtual patch

@pte_alloc_func_def depends on patch exists@
identifier E2;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
type T2;
@@

 fn(...
- , T2 E2
 )
 { ... }

@pte_alloc_func_proto depends on patch exists@
identifier E1, E2, E4;
type T1, T2, T3, T4;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

(
- T3 fn(T1 E1, T2 E2);
+ T3 fn(T1 E1);
|
- T3 fn(T1 E1, T2 E2, T4 E4);
+ T3 fn(T1 E1, T2 E2);
)

@pte_alloc_func_call depends on patch exists@
expression E2;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

 fn(...
-,  E2
 )

@pte_alloc_macro depends on patch exists@
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
identifier a, b, c;
expression e;
position p;
@@

(
- #define fn(a, b, c)@p e
+ #define fn(a, b) e
|
- #define fn(a, b)@p e
+ #define fn(a) e
)

Suggested-by: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: elfring@users.sourceforge.net
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---
 arch/alpha/include/asm/pgalloc.h             |  6 +++---
 arch/arc/include/asm/pgalloc.h               |  5 ++---
 arch/arm/include/asm/pgalloc.h               |  4 ++--
 arch/arm64/include/asm/pgalloc.h             |  4 ++--
 arch/hexagon/include/asm/pgalloc.h           |  6 ++----
 arch/ia64/include/asm/pgalloc.h              |  5 ++---
 arch/m68k/include/asm/mcf_pgalloc.h          |  8 ++------
 arch/m68k/include/asm/motorola_pgalloc.h     |  4 ++--
 arch/m68k/include/asm/sun3_pgalloc.h         |  6 ++----
 arch/microblaze/include/asm/pgalloc.h        | 19 ++-----------------
 arch/microblaze/mm/pgtable.c                 |  3 +--
 arch/mips/include/asm/pgalloc.h              |  6 ++----
 arch/nds32/include/asm/pgalloc.h             |  5 ++---
 arch/nios2/include/asm/pgalloc.h             |  6 ++----
 arch/openrisc/include/asm/pgalloc.h          |  5 ++---
 arch/openrisc/mm/ioremap.c                   |  3 +--
 arch/parisc/include/asm/pgalloc.h            |  4 ++--
 arch/powerpc/include/asm/book3s/32/pgalloc.h |  4 ++--
 arch/powerpc/include/asm/book3s/64/pgalloc.h | 12 +++++-------
 arch/powerpc/include/asm/nohash/32/pgalloc.h |  4 ++--
 arch/powerpc/include/asm/nohash/64/pgalloc.h |  6 ++----
 arch/powerpc/mm/pgtable-book3s64.c           |  2 +-
 arch/powerpc/mm/pgtable_32.c                 |  4 ++--
 arch/riscv/include/asm/pgalloc.h             |  6 ++----
 arch/s390/include/asm/pgalloc.h              |  4 ++--
 arch/sh/include/asm/pgalloc.h                |  6 ++----
 arch/sparc/include/asm/pgalloc_32.h          |  5 ++---
 arch/sparc/include/asm/pgalloc_64.h          |  6 ++----
 arch/sparc/mm/init_64.c                      |  6 ++----
 arch/sparc/mm/srmmu.c                        |  4 ++--
 arch/um/kernel/mem.c                         |  4 ++--
 arch/unicore32/include/asm/pgalloc.h         |  4 ++--
 arch/x86/include/asm/pgalloc.h               |  4 ++--
 arch/x86/mm/pgtable.c                        |  4 ++--
 arch/xtensa/include/asm/pgalloc.h            |  8 +++-----
 include/linux/mm.h                           | 13 ++++++-------
 mm/huge_memory.c                             |  8 ++++----
 mm/kasan/kasan_init.c                        |  2 +-
 mm/memory.c                                  | 17 ++++++++---------
 mm/migrate.c                                 |  2 +-
 mm/mremap.c                                  |  2 +-
 mm/userfaultfd.c                             |  2 +-
 virt/kvm/arm/mmu.c                           |  2 +-
 43 files changed, 95 insertions(+), 145 deletions(-)

diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
index ab3e3a8638fb..02f9f91bb4f0 100644
--- a/arch/alpha/include/asm/pgalloc.h
+++ b/arch/alpha/include/asm/pgalloc.h
@@ -52,7 +52,7 @@ pmd_free(struct mm_struct *mm, pmd_t *pmd)
 }
 
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
 	return pte;
@@ -65,9 +65,9 @@ pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pte_alloc_one(struct mm_struct *mm)
 {
-	pte_t *pte = pte_alloc_one_kernel(mm, address);
+	pte_t *pte = pte_alloc_one_kernel(mm);
 	struct page *page;
 
 	if (!pte)
diff --git a/arch/arc/include/asm/pgalloc.h b/arch/arc/include/asm/pgalloc.h
index 3749234b7419..9c9b5a5ebf2e 100644
--- a/arch/arc/include/asm/pgalloc.h
+++ b/arch/arc/include/asm/pgalloc.h
@@ -90,8 +90,7 @@ static inline int __get_order_pte(void)
 	return get_order(PTRS_PER_PTE * sizeof(pte_t));
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -102,7 +101,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pte_alloc_one(struct mm_struct *mm)
 {
 	pgtable_t pte_pg;
 	struct page *page;
diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
index 2d7344f0e208..17ab72f0cc4e 100644
--- a/arch/arm/include/asm/pgalloc.h
+++ b/arch/arm/include/asm/pgalloc.h
@@ -81,7 +81,7 @@ static inline void clean_pte_table(pte_t *pte)
  *  +------------+
  */
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -93,7 +93,7 @@ pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h
index 2e05bcd944c8..52fa47c73bf0 100644
--- a/arch/arm64/include/asm/pgalloc.h
+++ b/arch/arm64/include/asm/pgalloc.h
@@ -91,13 +91,13 @@ extern pgd_t *pgd_alloc(struct mm_struct *mm);
 extern void pgd_free(struct mm_struct *mm, pgd_t *pgdp);
 
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(PGALLOC_GFP);
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/hexagon/include/asm/pgalloc.h b/arch/hexagon/include/asm/pgalloc.h
index eeebf862c46c..d36183887b60 100644
--- a/arch/hexagon/include/asm/pgalloc.h
+++ b/arch/hexagon/include/asm/pgalloc.h
@@ -59,8 +59,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long) pgd);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-					 unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
@@ -75,8 +74,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 }
 
 /* _kernel variant gets to use a different allocator */
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	gfp_t flags =  GFP_KERNEL | __GFP_ZERO;
 	return (pte_t *) __get_free_page(flags);
diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
index 3ee5362f2661..c9e481023c25 100644
--- a/arch/ia64/include/asm/pgalloc.h
+++ b/arch/ia64/include/asm/pgalloc.h
@@ -83,7 +83,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
 	pmd_val(*pmd_entry) = __pa(pte);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	void *pg;
@@ -99,8 +99,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
 	return page;
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long addr)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return quicklist_alloc(0, GFP_KERNEL, NULL);
 }
diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h
index 12fe700632f4..4399d712f6db 100644
--- a/arch/m68k/include/asm/mcf_pgalloc.h
+++ b/arch/m68k/include/asm/mcf_pgalloc.h
@@ -12,8 +12,7 @@ extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 
 extern const char bad_pmd_string[];
 
-extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	unsigned long page = __get_free_page(GFP_DMA);
 
@@ -32,8 +31,6 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address)
 #define pmd_alloc_one_fast(mm, address) ({ BUG(); ((pmd_t *)1); })
 #define pmd_alloc_one(mm, address)      ({ BUG(); ((pmd_t *)2); })
 
-#define pte_alloc_one_fast(mm, addr) pte_alloc_one(mm, addr)
-
 #define pmd_populate(mm, pmd, page) (pmd_val(*pmd) = \
 	(unsigned long)(page_address(page)))
 
@@ -50,8 +47,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
 
 #define __pmd_free_tlb(tlb, pmd, address) do { } while (0)
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page = alloc_pages(GFP_DMA, 0);
 	pte_t *pte;
diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h
index 7859a86319cf..d04d9ba9b976 100644
--- a/arch/m68k/include/asm/motorola_pgalloc.h
+++ b/arch/m68k/include/asm/motorola_pgalloc.h
@@ -8,7 +8,7 @@
 extern pmd_t *get_pointer_table(void);
 extern int free_pointer_table(pmd_t *);
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -28,7 +28,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 	free_page((unsigned long) pte);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	pte_t *pte;
diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h
index 11485d38de4e..1456c5eecbd9 100644
--- a/arch/m68k/include/asm/sun3_pgalloc.h
+++ b/arch/m68k/include/asm/sun3_pgalloc.h
@@ -35,8 +35,7 @@ do {							\
 	tlb_remove_page((tlb), pte);			\
 } while (0)
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	unsigned long page = __get_free_page(GFP_KERNEL);
 
@@ -47,8 +46,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return (pte_t *) (page);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-					unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
         struct page *page = alloc_pages(GFP_KERNEL, 0);
 
diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
index 7c89390c0c13..f4cc9ffc449e 100644
--- a/arch/microblaze/include/asm/pgalloc.h
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -108,10 +108,9 @@ static inline void free_pgd_slow(pgd_t *pgd)
 #define pmd_alloc_one_fast(mm, address)	({ BUG(); ((pmd_t *)1); })
 #define pmd_alloc_one(mm, address)	({ BUG(); ((pmd_t *)2); })
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-		unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *ptepage;
 
@@ -132,20 +131,6 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 	return ptepage;
 }
 
-static inline pte_t *pte_alloc_one_fast(struct mm_struct *mm,
-		unsigned long address)
-{
-	unsigned long *ret;
-
-	ret = pte_quicklist;
-	if (ret != NULL) {
-		pte_quicklist = (unsigned long *)(*ret);
-		ret[0] = 0;
-		pgtable_cache_size--;
-	}
-	return (pte_t *)ret;
-}
-
 static inline void pte_free_fast(pte_t *pte)
 {
 	*(unsigned long **)pte = pte_quicklist;
diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c
index 7f525962cdfa..c2ce1e42b888 100644
--- a/arch/microblaze/mm/pgtable.c
+++ b/arch/microblaze/mm/pgtable.c
@@ -235,8 +235,7 @@ unsigned long iopa(unsigned long addr)
 	return pa;
 }
 
-__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-		unsigned long address)
+__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 	if (mem_init_done) {
diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
index 39b9f311c4ef..27808d9461f4 100644
--- a/arch/mips/include/asm/pgalloc.h
+++ b/arch/mips/include/asm/pgalloc.h
@@ -50,14 +50,12 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_pages((unsigned long)pgd, PGD_ORDER);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, PTE_ORDER);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/nds32/include/asm/pgalloc.h b/arch/nds32/include/asm/pgalloc.h
index 27448869131a..3c5fee5b5759 100644
--- a/arch/nds32/include/asm/pgalloc.h
+++ b/arch/nds32/include/asm/pgalloc.h
@@ -22,8 +22,7 @@ extern void pgd_free(struct mm_struct *mm, pgd_t * pgd);
 
 #define check_pgt_cache()		do { } while (0)
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long addr)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -34,7 +33,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return pte;
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	pgtable_t pte;
 
diff --git a/arch/nios2/include/asm/pgalloc.h b/arch/nios2/include/asm/pgalloc.h
index bb47d08c8ef7..3a149ead1207 100644
--- a/arch/nios2/include/asm/pgalloc.h
+++ b/arch/nios2/include/asm/pgalloc.h
@@ -37,8 +37,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_pages((unsigned long)pgd, PGD_ORDER);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -47,8 +46,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return pte;
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/openrisc/include/asm/pgalloc.h b/arch/openrisc/include/asm/pgalloc.h
index 8999b9226512..149c82ee4b8b 100644
--- a/arch/openrisc/include/asm/pgalloc.h
+++ b/arch/openrisc/include/asm/pgalloc.h
@@ -70,10 +70,9 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long)pgd);
 }
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-					 unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 	pte = alloc_pages(GFP_KERNEL, 0);
diff --git a/arch/openrisc/mm/ioremap.c b/arch/openrisc/mm/ioremap.c
index 2175e4bfd9fc..24fb1021c75a 100644
--- a/arch/openrisc/mm/ioremap.c
+++ b/arch/openrisc/mm/ioremap.c
@@ -118,8 +118,7 @@ EXPORT_SYMBOL(iounmap);
  * the memblock infrastructure.
  */
 
-pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm,
-					 unsigned long address)
+pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index cf13275f7c6d..d05c678c77c4 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -122,7 +122,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
 #define pmd_pgtable(pmd) pmd_page(pmd)
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page = alloc_page(GFP_KERNEL|__GFP_ZERO);
 	if (!page)
@@ -135,7 +135,7 @@ pte_alloc_one(struct mm_struct *mm, unsigned long address)
 }
 
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
 	return pte;
diff --git a/arch/powerpc/include/asm/book3s/32/pgalloc.h b/arch/powerpc/include/asm/book3s/32/pgalloc.h
index 82e44b1a00ae..af9e13555d95 100644
--- a/arch/powerpc/include/asm/book3s/32/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/32/pgalloc.h
@@ -82,8 +82,8 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp,
 #define pmd_pgtable(pmd) pmd_page(pmd)
 #endif
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
-extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
+extern pgtable_t pte_alloc_one(struct mm_struct *mm);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h
index 391ed2c3b697..8f1d92e99fe5 100644
--- a/arch/powerpc/include/asm/book3s/64/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h
@@ -42,7 +42,7 @@ extern struct kmem_cache *pgtable_cache[];
 			pgtable_cache[(shift) - 1];	\
 		})
 
-extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int);
+extern pte_t *pte_fragment_alloc(struct mm_struct *, int);
 extern pmd_t *pmd_fragment_alloc(struct mm_struct *, unsigned long);
 extern void pte_fragment_free(unsigned long *, int);
 extern void pmd_fragment_free(unsigned long *);
@@ -192,16 +192,14 @@ static inline pgtable_t pmd_pgtable(pmd_t pmd)
 	return (pgtable_t)pmd_page_vaddr(pmd);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
-	return (pte_t *)pte_fragment_alloc(mm, address, 1);
+	return (pte_t *)pte_fragment_alloc(mm, 1);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-				      unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
-	return (pgtable_t)pte_fragment_alloc(mm, address, 0);
+	return (pgtable_t)pte_fragment_alloc(mm, 0);
 }
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
diff --git a/arch/powerpc/include/asm/nohash/32/pgalloc.h b/arch/powerpc/include/asm/nohash/32/pgalloc.h
index 8825953c225b..16623f53f0d4 100644
--- a/arch/powerpc/include/asm/nohash/32/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/32/pgalloc.h
@@ -83,8 +83,8 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp,
 #define pmd_pgtable(pmd) pmd_page(pmd)
 #endif
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
-extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
+extern pgtable_t pte_alloc_one(struct mm_struct *mm);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
diff --git a/arch/powerpc/include/asm/nohash/64/pgalloc.h b/arch/powerpc/include/asm/nohash/64/pgalloc.h
index e2d62d033708..2e7e0230edf4 100644
--- a/arch/powerpc/include/asm/nohash/64/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/64/pgalloc.h
@@ -96,14 +96,12 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 }
 
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-				      unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	pte_t *pte;
diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c
index 01d7c0f7c4f0..cff1d426ca6a 100644
--- a/arch/powerpc/mm/pgtable-book3s64.c
+++ b/arch/powerpc/mm/pgtable-book3s64.c
@@ -379,7 +379,7 @@ static pte_t *__alloc_for_ptecache(struct mm_struct *mm, int kernel)
 	return (pte_t *)ret;
 }
 
-pte_t *pte_fragment_alloc(struct mm_struct *mm, unsigned long vmaddr, int kernel)
+pte_t *pte_fragment_alloc(struct mm_struct *mm, int kernel)
 {
 	pte_t *pte;
 
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 120a49bfb9c6..b99a89cdcc5e 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -43,7 +43,7 @@ EXPORT_SYMBOL(ioremap_bot);	/* aka VMALLOC_END */
 
 extern char etext[], _stext[], _sinittext[], _einittext[];
 
-__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -57,7 +57,7 @@ __ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 	return pte;
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *ptepage;
 
diff --git a/arch/riscv/include/asm/pgalloc.h b/arch/riscv/include/asm/pgalloc.h
index a79ed5faff3a..94043cf83c90 100644
--- a/arch/riscv/include/asm/pgalloc.h
+++ b/arch/riscv/include/asm/pgalloc.h
@@ -82,15 +82,13 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 
 #endif /* __PAGETABLE_PMD_FOLDED */
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(
 		GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_ZERO);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index f0f9bcf94c03..ce2ca8cbd2ec 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -139,8 +139,8 @@ static inline void pmd_populate(struct mm_struct *mm,
 /*
  * page table entry allocation/free routines.
  */
-#define pte_alloc_one_kernel(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
-#define pte_alloc_one(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
+#define pte_alloc_one_kernel(mm) ((pte_t *)page_table_alloc(mm))
+#define pte_alloc_one(mm) ((pte_t *)page_table_alloc(mm))
 
 #define pte_free_kernel(mm, pte) page_table_free(mm, (unsigned long *) pte)
 #define pte_free(mm, pte) page_table_free(mm, (unsigned long *) pte)
diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h
index ed053a359ab7..8ad73cb31121 100644
--- a/arch/sh/include/asm/pgalloc.h
+++ b/arch/sh/include/asm/pgalloc.h
@@ -32,14 +32,12 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
 /*
  * Allocate and free page tables.
  */
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return quicklist_alloc(QUICK_PT, GFP_KERNEL, NULL);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-					unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	void *pg;
diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
index 90459481c6c7..282be50a4adf 100644
--- a/arch/sparc/include/asm/pgalloc_32.h
+++ b/arch/sparc/include/asm/pgalloc_32.h
@@ -58,10 +58,9 @@ void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
 void pmd_set(pmd_t *pmdp, pte_t *ptep);
 #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
+pgtable_t pte_alloc_one(struct mm_struct *mm);
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
 }
diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
index 874632f34f62..48abccba4991 100644
--- a/arch/sparc/include/asm/pgalloc_64.h
+++ b/arch/sparc/include/asm/pgalloc_64.h
@@ -60,10 +60,8 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 	kmem_cache_free(pgtable_cache, pmd);
 }
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-			    unsigned long address);
-pgtable_t pte_alloc_one(struct mm_struct *mm,
-			unsigned long address);
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
+pgtable_t pte_alloc_one(struct mm_struct *mm);
 void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
 void pte_free(struct mm_struct *mm, pgtable_t ptepage);
 
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index f396048a0d68..6133f21811e9 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -2921,8 +2921,7 @@ void __flush_tlb_all(void)
 			     : : "r" (pstate));
 }
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-			    unsigned long address)
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO);
 	pte_t *pte = NULL;
@@ -2933,8 +2932,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return pte;
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm,
-			unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO);
 	if (!page)
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index be9cb0065179..ce67a96e70c3 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -364,12 +364,12 @@ pgd_t *get_pgd_fast(void)
  * Alignments up to the page size are the same for physical and virtual
  * addresses of the nocache area.
  */
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	unsigned long pte;
 	struct page *page;
 
-	if ((pte = (unsigned long)pte_alloc_one_kernel(mm, address)) == 0)
+	if ((pte = (unsigned long)pte_alloc_one_kernel(mm)) == 0)
 		return NULL;
 	page = pfn_to_page(__nocache_pa(pte) >> PAGE_SHIFT);
 	if (!pgtable_page_ctor(page)) {
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 3c0e470ea646..1f277191fbf3 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -197,7 +197,7 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long) pgd);
 }
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -205,7 +205,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 	return pte;
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/unicore32/include/asm/pgalloc.h b/arch/unicore32/include/asm/pgalloc.h
index f0fdb268f8f2..7cceabecf4e3 100644
--- a/arch/unicore32/include/asm/pgalloc.h
+++ b/arch/unicore32/include/asm/pgalloc.h
@@ -34,7 +34,7 @@ extern void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd);
  * Allocate one PTE table.
  */
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -46,7 +46,7 @@ pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
index fbd578daa66e..5068e85165b2 100644
--- a/arch/x86/include/asm/pgalloc.h
+++ b/arch/x86/include/asm/pgalloc.h
@@ -47,8 +47,8 @@ extern gfp_t __userpte_alloc_gfp;
 extern pgd_t *pgd_alloc(struct mm_struct *);
 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
-extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *);
+extern pgtable_t pte_alloc_one(struct mm_struct *);
 
 /* Should really implement gc for free page table pages. This could be
    done with a reference count in struct page. */
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 089e78c4effd..a2eff247377b 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -23,12 +23,12 @@ EXPORT_SYMBOL(physical_mask);
 
 gfp_t __userpte_alloc_gfp = PGALLOC_GFP | PGALLOC_USER_GFP;
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(PGALLOC_GFP & ~__GFP_ACCOUNT);
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/xtensa/include/asm/pgalloc.h b/arch/xtensa/include/asm/pgalloc.h
index 1065bc8bcae5..b3b388ff2f01 100644
--- a/arch/xtensa/include/asm/pgalloc.h
+++ b/arch/xtensa/include/asm/pgalloc.h
@@ -38,8 +38,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long)pgd);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					 unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *ptep;
 	int i;
@@ -52,13 +51,12 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return ptep;
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-					unsigned long addr)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	pte_t *pte;
 	struct page *page;
 
-	pte = pte_alloc_one_kernel(mm, addr);
+	pte = pte_alloc_one_kernel(mm);
 	if (!pte)
 		return NULL;
 	page = virt_to_page(pte);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0416a7204be3..89c2b1739a69 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1789,8 +1789,8 @@ static inline void mm_inc_nr_ptes(struct mm_struct *mm) {}
 static inline void mm_dec_nr_ptes(struct mm_struct *mm) {}
 #endif
 
-int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address);
-int __pte_alloc_kernel(pmd_t *pmd, unsigned long address);
+int __pte_alloc(struct mm_struct *mm, pmd_t *pmd);
+int __pte_alloc_kernel(pmd_t *pmd);
 
 /*
  * The following ifdef needed to get the 4level-fixup.h header to work.
@@ -1928,18 +1928,17 @@ static inline void pgtable_page_dtor(struct page *page)
 	pte_unmap(pte);					\
 } while (0)
 
-#define pte_alloc(mm, pmd, address)			\
-	(unlikely(pmd_none(*(pmd))) && __pte_alloc(mm, pmd, address))
+#define pte_alloc(mm, pmd) (unlikely(pmd_none(*(pmd))) && __pte_alloc(mm, pmd))
 
 #define pte_alloc_map(mm, pmd, address)			\
-	(pte_alloc(mm, pmd, address) ? NULL : pte_offset_map(pmd, address))
+	(pte_alloc(mm, pmd) ? NULL : pte_offset_map(pmd, address))
 
 #define pte_alloc_map_lock(mm, pmd, address, ptlp)	\
-	(pte_alloc(mm, pmd, address) ?			\
+	(pte_alloc(mm, pmd) ?			\
 		 NULL : pte_offset_map_lock(mm, pmd, address, ptlp))
 
 #define pte_alloc_kernel(pmd, address)			\
-	((unlikely(pmd_none(*(pmd))) && __pte_alloc_kernel(pmd, address))? \
+	((unlikely(pmd_none(*(pmd))) && __pte_alloc_kernel(pmd))? \
 		NULL: pte_offset_kernel(pmd, address))
 
 #if USE_SPLIT_PMD_PTLOCKS
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 00704060b7f7..fd7e8714e5a1 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -558,7 +558,7 @@ static vm_fault_t __do_huge_pmd_anonymous_page(struct vm_fault *vmf,
 		return VM_FAULT_FALLBACK;
 	}
 
-	pgtable = pte_alloc_one(vma->vm_mm, haddr);
+	pgtable = pte_alloc_one(vma->vm_mm);
 	if (unlikely(!pgtable)) {
 		ret = VM_FAULT_OOM;
 		goto release;
@@ -683,7 +683,7 @@ vm_fault_t do_huge_pmd_anonymous_page(struct vm_fault *vmf)
 		struct page *zero_page;
 		bool set;
 		vm_fault_t ret;
-		pgtable = pte_alloc_one(vma->vm_mm, haddr);
+		pgtable = pte_alloc_one(vma->vm_mm);
 		if (unlikely(!pgtable))
 			return VM_FAULT_OOM;
 		zero_page = mm_get_huge_zero_page(vma->vm_mm);
@@ -772,7 +772,7 @@ vm_fault_t vmf_insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr,
 		return VM_FAULT_SIGBUS;
 
 	if (arch_needs_pgtable_deposit()) {
-		pgtable = pte_alloc_one(vma->vm_mm, addr);
+		pgtable = pte_alloc_one(vma->vm_mm);
 		if (!pgtable)
 			return VM_FAULT_OOM;
 	}
@@ -910,7 +910,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	if (!vma_is_anonymous(vma))
 		return 0;
 
-	pgtable = pte_alloc_one(dst_mm, addr);
+	pgtable = pte_alloc_one(dst_mm);
 	if (unlikely(!pgtable))
 		goto out;
 
diff --git a/mm/kasan/kasan_init.c b/mm/kasan/kasan_init.c
index 7a2a2f13f86f..272849cd2007 100644
--- a/mm/kasan/kasan_init.c
+++ b/mm/kasan/kasan_init.c
@@ -121,7 +121,7 @@ static int __ref zero_pmd_populate(pud_t *pud, unsigned long addr,
 			pte_t *p;
 
 			if (slab_is_available())
-				p = pte_alloc_one_kernel(&init_mm, addr);
+				p = pte_alloc_one_kernel(&init_mm);
 			else
 				p = early_alloc(PAGE_SIZE, NUMA_NO_NODE);
 			if (!p)
diff --git a/mm/memory.c b/mm/memory.c
index c467102a5cbc..3afdcf38993d 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -647,10 +647,10 @@ void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *vma,
 	}
 }
 
-int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
+int __pte_alloc(struct mm_struct *mm, pmd_t *pmd)
 {
 	spinlock_t *ptl;
-	pgtable_t new = pte_alloc_one(mm, address);
+	pgtable_t new = pte_alloc_one(mm);
 	if (!new)
 		return -ENOMEM;
 
@@ -681,9 +681,9 @@ int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
 	return 0;
 }
 
-int __pte_alloc_kernel(pmd_t *pmd, unsigned long address)
+int __pte_alloc_kernel(pmd_t *pmd)
 {
-	pte_t *new = pte_alloc_one_kernel(&init_mm, address);
+	pte_t *new = pte_alloc_one_kernel(&init_mm);
 	if (!new)
 		return -ENOMEM;
 
@@ -3139,7 +3139,7 @@ static vm_fault_t do_anonymous_page(struct vm_fault *vmf)
 	 *
 	 * Here we only have down_read(mmap_sem).
 	 */
-	if (pte_alloc(vma->vm_mm, vmf->pmd, vmf->address))
+	if (pte_alloc(vma->vm_mm, vmf->pmd))
 		return VM_FAULT_OOM;
 
 	/* See the comment in pte_alloc_one_map() */
@@ -3286,7 +3286,7 @@ static vm_fault_t pte_alloc_one_map(struct vm_fault *vmf)
 		pmd_populate(vma->vm_mm, vmf->pmd, vmf->prealloc_pte);
 		spin_unlock(vmf->ptl);
 		vmf->prealloc_pte = NULL;
-	} else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd, vmf->address))) {
+	} else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd))) {
 		return VM_FAULT_OOM;
 	}
 map_pte:
@@ -3365,7 +3365,7 @@ static vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page)
 	 * related to pte entry. Use the preallocated table for that.
 	 */
 	if (arch_needs_pgtable_deposit() && !vmf->prealloc_pte) {
-		vmf->prealloc_pte = pte_alloc_one(vma->vm_mm, vmf->address);
+		vmf->prealloc_pte = pte_alloc_one(vma->vm_mm);
 		if (!vmf->prealloc_pte)
 			return VM_FAULT_OOM;
 		smp_wmb(); /* See comment in __pte_alloc() */
@@ -3603,8 +3603,7 @@ static vm_fault_t do_fault_around(struct vm_fault *vmf)
 			start_pgoff + nr_pages - 1);
 
 	if (pmd_none(*vmf->pmd)) {
-		vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm,
-						  vmf->address);
+		vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm);
 		if (!vmf->prealloc_pte)
 			goto out;
 		smp_wmb(); /* See comment in __pte_alloc() */
diff --git a/mm/migrate.c b/mm/migrate.c
index 84381b55b2bd..3080b0626026 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -2605,7 +2605,7 @@ static void migrate_vma_insert_page(struct migrate_vma *migrate,
 	 *
 	 * Here we only have down_read(mmap_sem).
 	 */
-	if (pte_alloc(mm, pmdp, addr))
+	if (pte_alloc(mm, pmdp))
 		goto abort;
 
 	/* See the comment in pte_alloc_one_map() */
diff --git a/mm/mremap.c b/mm/mremap.c
index 5c2e18505f75..9e68a02a52b1 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -240,7 +240,7 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
 			if (pmd_trans_unstable(old_pmd))
 				continue;
 		}
-		if (pte_alloc(new_vma->vm_mm, new_pmd, new_addr))
+		if (pte_alloc(new_vma->vm_mm, new_pmd))
 			break;
 		next = (new_addr + PMD_SIZE) & PMD_MASK;
 		if (extent > next - new_addr)
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 5029f241908f..f05c8bc38ca5 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -513,7 +513,7 @@ static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,
 			break;
 		}
 		if (unlikely(pmd_none(dst_pmdval)) &&
-		    unlikely(__pte_alloc(dst_mm, dst_pmd, dst_addr))) {
+		    unlikely(__pte_alloc(dst_mm, dst_pmd))) {
 			err = -ENOMEM;
 			break;
 		}
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index ed162a6c57c5..3f8180414301 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -628,7 +628,7 @@ static int create_hyp_pmd_mappings(pud_t *pud, unsigned long start,
 		BUG_ON(pmd_sect(*pmd));
 
 		if (pmd_none(*pmd)) {
-			pte = pte_alloc_one_kernel(NULL, addr);
+			pte = pte_alloc_one_kernel(NULL);
 			if (!pte) {
 				kvm_err("Cannot allocate Hyp pte\n");
 				return -ENOMEM;
-- 
2.19.0.605.g01d371f741-goog

From - Thu Nov 08 21:42:10 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.riscv,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
Date: Thu, 11 Oct 2018 18:37:56 -0700
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Approved: news@gmane.org
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
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To: linux-kernel@vger.kernel.org
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Android needs to mremap large regions of memory during memory management
related operations. The mremap system call can be really slow if THP is
not enabled. The bottleneck is move_page_tables, which is copying each
pte at a time, and can be really slow across a large map. Turning on THP
may not be a viable option, and is not for us. This patch speeds up the
performance for non-THP system by copying at the PMD level when possible.

The speed up is three orders of magnitude. On a 1GB mremap, the mremap
completion times drops from 160-250 millesconds to 380-400 microseconds.

Before:
Total mremap time for 1GB data: 242321014 nanoseconds.
Total mremap time for 1GB data: 196842467 nanoseconds.
Total mremap time for 1GB data: 167051162 nanoseconds.

After:
Total mremap time for 1GB data: 385781 nanoseconds.
Total mremap time for 1GB data: 388959 nanoseconds.
Total mremap time for 1GB data: 402813 nanoseconds.

Incase THP is enabled, the optimization is skipped. I also flush the
tlb every time we do this optimization since I couldn't find a way to
determine if the low-level PTEs are dirty. It is seen that the cost of
doing so is not much compared the improvement, on both x86-64 and arm64.

Cc: minchan@kernel.org
Cc: pantin@google.com
Cc: hughd@google.com
Cc: lokeshgidra@google.com
Cc: dancol@google.com
Cc: mhocko@kernel.org
Cc: kirill@shutemov.name
Cc: akpm@linux-foundation.org
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---
 mm/mremap.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/mm/mremap.c b/mm/mremap.c
index 9e68a02a52b1..d82c485822ef 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 		drop_rmap_locks(vma);
 }
 
+static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
+		  unsigned long new_addr, unsigned long old_end,
+		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
+{
+	spinlock_t *old_ptl, *new_ptl;
+	struct mm_struct *mm = vma->vm_mm;
+
+	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
+	    || old_end - old_addr < PMD_SIZE)
+		return false;
+
+	/*
+	 * The destination pmd shouldn't be established, free_pgtables()
+	 * should have release it.
+	 */
+	if (WARN_ON(!pmd_none(*new_pmd)))
+		return false;
+
+	/*
+	 * We don't have to worry about the ordering of src and dst
+	 * ptlocks because exclusive mmap_sem prevents deadlock.
+	 */
+	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
+	if (old_ptl) {
+		pmd_t pmd;
+
+		new_ptl = pmd_lockptr(mm, new_pmd);
+		if (new_ptl != old_ptl)
+			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
+
+		/* Clear the pmd */
+		pmd = *old_pmd;
+		pmd_clear(old_pmd);
+
+		VM_BUG_ON(!pmd_none(*new_pmd));
+
+		/* Set the new pmd */
+		set_pmd_at(mm, new_addr, new_pmd, pmd);
+		if (new_ptl != old_ptl)
+			spin_unlock(new_ptl);
+		spin_unlock(old_ptl);
+
+		*need_flush = true;
+		return true;
+	}
+	return false;
+}
+
 unsigned long move_page_tables(struct vm_area_struct *vma,
 		unsigned long old_addr, struct vm_area_struct *new_vma,
 		unsigned long new_addr, unsigned long len,
@@ -239,7 +287,21 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
 			split_huge_pmd(vma, old_pmd, old_addr);
 			if (pmd_trans_unstable(old_pmd))
 				continue;
+		} else if (extent == PMD_SIZE) {
+			bool moved;
+
+			/* See comment in move_ptes() */
+			if (need_rmap_locks)
+				take_rmap_locks(vma);
+			moved = move_normal_pmd(vma, old_addr, new_addr,
+					old_end, old_pmd, new_pmd,
+					&need_flush);
+			if (need_rmap_locks)
+				drop_rmap_locks(vma);
+			if (moved)
+				continue;
 		}
+
 		if (pte_alloc(new_vma->vm_mm, new_pmd))
 			break;
 		next = (new_addr + PMD_SIZE) & PMD_MASK;
-- 
2.19.0.605.g01d371f741-goog

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Subject: [PATCH v4 0/6] parisc: system call table generation support
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The purpose of this patch series is, we can easily add/modify/delete
system call table support by changing entry in syscall.tbl file 
instead of manually changing many files. The other goal is to unify 
the system call table generation support implementation across all 
the architectures. 

The system call tables are in different format in all architecture. It
will be difficult to manually add, modify or delete the system calls
in the respective files manually. To make it easy by keeping a script 
and which'll generate uapi header file and syscall table file.

syscall.tbl contains the list of available system calls along with 
system call number and corresponding entry point. Add a new system 
call in this architecture will be possible by adding new entry in 
the syscall.tbl file.

Adding a new table entry consisting of:
        - System call number.
        - ABI.
        - System call name.
        - Entry point name.
        - Compat entry name, if required.

ARM, s390 and x86 architecuture does exist the similar support. I 
leverage their implementation to come up with a generic solution.

I have done the same support for work for alpha, microblaze, sparc,
m68k, mips, powerpc, sh, sparc, and xtensa. But I started sending 
the patch for one architecuture for review. Below mentioned git
repository contains more details.
Git repo:- https://github.com/frzkhn/system_call_table_generator/

Finally, this is the ground work for solving the Y2038 issue. We 
need to add two dozen of system calls to solve Y2038 issue. So this
patch series will help to add new system calls easily by adding new
entry in the syscall.tbl.

Firoz Khan (6):
  parisc: move __IGNORE* entries to non uapi header
  parisc: add __NR_Linux_syscalls along with __NR_syscalls
  parisc: add system call table generation support
  parisc: uapi header and system call table file generation
  parisc: wire up rseq system call
  parisc: syscalls: Ignore nfsservctl for other architectures

 arch/parisc/Makefile                      |   4 +
 arch/parisc/include/asm/Kbuild            |   3 +
 arch/parisc/include/asm/unistd.h          |   8 +
 arch/parisc/include/uapi/asm/Kbuild       |   2 +
 arch/parisc/include/uapi/asm/unistd.h     | 382 +------------------------
 arch/parisc/kernel/syscall.S              |  10 +-
 arch/parisc/kernel/syscall_table.S        | 459 ------------------------------
 arch/parisc/kernel/syscalls/Makefile      |  55 ++++
 arch/parisc/kernel/syscalls/syscall.tbl   | 371 ++++++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscallhdr.sh |  35 +++
 arch/parisc/kernel/syscalls/syscalltbl.sh |  46 +++
 scripts/checksyscalls.sh                  |   1 +
 12 files changed, 540 insertions(+), 836 deletions(-)
 delete mode 100644 arch/parisc/kernel/syscall_table.S
 create mode 100644 arch/parisc/kernel/syscalls/Makefile
 create mode 100644 arch/parisc/kernel/syscalls/syscall.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
 create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh

-- 
1.9.1



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All the __IGNORE* entries are resides in the uapi header
file move to non uapi header asm/unistd.h. Basically it
is not used by any user space applications.

It is correct to keep __IGNORE* entry in non uapi header
asm/unistd.h while uapi/asm/unistd.h must hold information
only useful for user space applications.

One of the patch in this patch series will generate uapi
headers that should present in the uapi header file. And
some of the information which directly used by the user
space application also need to be present in uapi file.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/include/asm/unistd.h      | 6 ++++++
 arch/parisc/include/uapi/asm/unistd.h | 7 -------
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 3d507d0..93fd9f6 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -8,6 +8,12 @@
 
 #define SYS_ify(syscall_name)   __NR_##syscall_name
 
+#define __IGNORE_select                /* newselect */
+#define __IGNORE_fadvise64             /* fadvise64_64 */
+#define __IGNORE_pkey_mprotect
+#define __IGNORE_pkey_alloc
+#define __IGNORE_pkey_free
+
 #ifndef ASM_LINE_SEP
 # define ASM_LINE_SEP ;
 #endif
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index dc77c5a..bb52e12 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -368,13 +368,6 @@
 
 #define __NR_Linux_syscalls	(__NR_io_pgetevents + 1)
 
-
-#define __IGNORE_select		/* newselect */
-#define __IGNORE_fadvise64	/* fadvise64_64 */
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
-
 #define LINUX_GATEWAY_ADDR      0x100
 
 #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */
-- 
1.9.1



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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 2/6] parisc: add __NR_Linux_syscalls along with __NR_syscalls
Date: Fri, 12 Oct 2018 15:13:58 +0530
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        Thomas Gleixner <tglx@linutronix.de>,
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        Kate Stewart <kstewart@linuxfoundation.org>
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Xref: news.gmane.org gmane.linux.kernel:2897399 gmane.linux.ports.parisc:29130 gmane.linux.kernel.year-2038:3506 gmane.linux.kernel.cross-arch:47716
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__NR_Linux_syscalls macro holds the number of system call
exist in PARISC architecture. This macro is currently the
part of uapi/asm/unistd.h file. We have to change the value
of __NR_Linux_syscalls, if we add or delete a system call.

One of the patch in this patch series has a script which
will generate a uapi header based on syscall.tbl file. The
syscall.tbl file contains the number of system call inform-
ation. So we have two option to update __NR_Linux_syscalls
value.

1. Update __NR_Linux_syscalls in uapi/asm/unistd.h manually
   by counting the no.of system calls. No need to update
   __NR_Linux_syscalls until we either add a new system call
   or delete an existing system call.

2. We can keep this feature it above mentioned script, that
   will count the number of syscalls and keep it in a gener-
   ated file. In this case we don't need to explicitly update
   __NR_Linux_syscalls in asm/unistd.h file.

The 2nd option will be the recommended one. For that, I moved
the __NR_Linux_syscalls macro from uapi/asm/unistd.h to asm/
unistd.h. The macro __NR_syscalls also added for making the
name convention same across all architecture. While __NR_sys-
calls isn't strictly part of the uapi, having it as part of
the generated header to simplifies the implementation. We also
need to enclose this macro with #ifdef __KERNEL__ to avoid
side effects.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/include/asm/unistd.h      | 2 ++
 arch/parisc/include/uapi/asm/unistd.h | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 93fd9f6..d30fdbcb 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -4,6 +4,8 @@
 
 #include <uapi/asm/unistd.h>
 
+#define __NR_Linux_syscalls     __NR_syscalls
+
 #ifndef __ASSEMBLY__
 
 #define SYS_ify(syscall_name)   __NR_##syscall_name
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index bb52e12..f10d065 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -366,7 +366,9 @@
 #define __NR_statx		(__NR_Linux + 349)
 #define __NR_io_pgetevents	(__NR_Linux + 350)
 
-#define __NR_Linux_syscalls	(__NR_io_pgetevents + 1)
+#ifdef __KERNEL__
+#define __NR_syscalls           351
+#endif
 
 #define LINUX_GATEWAY_ADDR      0x100
 
-- 
1.9.1



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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 3/6] parisc: add system call table generation support
Date: Fri, 12 Oct 2018 15:13:59 +0530
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2897400>

The system call tables are in different format in all
architecture and it will be difficult to manually add or
modify the system calls in the respective files. To make
it easy by keeping a script and which'll generate the
header file and syscall table file so this change will
unify them across all architectures.

The system call table generation script is added in
syscalls directory which contain the script to generate
both uapi header file system call table generation file
and syscall.tbl file which'll be the input for the
scripts.

syscall.tbl contains the list of available system calls
along with system call number and corresponding entry point.
Add a new system call in this architecture will be possible
by adding new entry in the syscall.tbl file.

Adding a new table entry consisting of:
        - System call number.
        - ABI.
        - System call name.
        - Entry point name.
	- Compat entry name, if required.

syscallhdr.sh and syscalltbl.sh will generate uapi header-
unistd_32/64.h and syscall_table_32/64/c32.h files respect-
ively. File syscall_table_32/64/c32.h is included by sys-
call.S - the real system call table. Both .sh files will
parse the content syscall.tbl to generate the header and
table files.

ARM, s390 and x86 architecuture does have the similar support.
I leverage their implementation to come up with a generic
solution.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/kernel/syscalls/Makefile      |  55 +++++
 arch/parisc/kernel/syscalls/syscall.tbl   | 369 ++++++++++++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscallhdr.sh |  35 +++
 arch/parisc/kernel/syscalls/syscalltbl.sh |  46 ++++
 4 files changed, 505 insertions(+)
 create mode 100644 arch/parisc/kernel/syscalls/Makefile
 create mode 100644 arch/parisc/kernel/syscalls/syscall.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
 create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh

diff --git a/arch/parisc/kernel/syscalls/Makefile b/arch/parisc/kernel/syscalls/Makefile
new file mode 100644
index 0000000..a0af5a3
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/Makefile
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0
+kapi := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
+
+_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
+	  $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
+
+syscall := $(srctree)/$(src)/syscall.tbl
+syshdr := $(srctree)/$(src)/syscallhdr.sh
+systbl := $(srctree)/$(src)/syscalltbl.sh
+
+quiet_cmd_syshdr = SYSHDR  $@
+      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'  \
+		   '$(syshdr_abi_$(basetarget))'          \
+		   '$(syshdr_pfx_$(basetarget))'          \
+		   '$(syshdr_offset_$(basetarget))'
+
+quiet_cmd_systbl = SYSTBL  $@
+      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'  \
+                   '$(systbl_abi_$(basetarget))'          \
+		   '$(systbl_offset_$(basetarget))'
+
+syshdr_abi_unistd_32 := common,32
+syshdr_offset_unistd_32 := __NR_Linux
+$(uapi)/unistd_32.h: $(syscall) $(syshdr)
+	$(call if_changed,syshdr)
+
+syshdr_abi_unistd_64 := common,64
+syshdr_offset_unistd_64 := __NR_Linux
+$(uapi)/unistd_64.h: $(syscall) $(syshdr)
+	$(call if_changed,syshdr)
+
+systbl_abi_syscall_table_32 := common,32
+$(kapi)/syscall_table_32.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+systbl_abi_syscall_table_64 := common,64
+$(kapi)/syscall_table_64.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+systbl_abi_syscall_table_c32 := common,compat,32
+$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+uapisyshdr-y			+= unistd_32.h unistd_64.h
+kapisyshdr-y			+= syscall_table_32.h     \
+                                   syscall_table_64.h     \
+                                   syscall_table_c32.h
+
+targets	+= $(uapisyshdr-y) $(kapisyshdr-y)
+
+PHONY += all
+all: $(addprefix $(uapi)/,$(uapisyshdr-y))
+all: $(addprefix $(kapi)/,$(kapisyshdr-y))
+	@:
diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
new file mode 100644
index 0000000..7c9f268
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -0,0 +1,369 @@
+# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
+#
+# system call numbers and entry vectors for parisc
+#
+# The format is:
+# <number> <abi> <name> <entry point> <compat entry point>
+#
+# The <abi> can be common, 64, or 32 for this file.
+#
+0       common  restart_syscall                 sys_restart_syscall
+1       common  exit                            sys_exit
+2       common  fork                            sys_fork_wrapper
+3       common  read                            sys_read
+4       common  write                           sys_write
+5       common  open                            sys_open                        compat_sys_open
+6       common  close                           sys_close
+7       common  waitpid                         sys_waitpid
+8       common  creat                           sys_creat
+9       common  link                            sys_link
+10      common  unlink                          sys_unlink
+11      common  execve                          sys_execve                      compat_sys_execve
+12      common  chdir                           sys_chdir
+13      common  time                            sys_time                        compat_sys_time
+14      common  mknod                           sys_mknod
+15      common  chmod                           sys_chmod
+16      common  lchown                          sys_lchown
+17      common  socket                          sys_socket
+18      common  stat                            sys_newstat                     compat_sys_newstat
+19      common  lseek                           sys_lseek                       compat_sys_lseek
+20      common  getpid                          sys_getpid
+21      common  mount                           sys_mount                       compat_sys_mount
+22      common  bind                            sys_bind
+23      common  setuid                          sys_setuid
+24      common  getuid                          sys_getuid
+25      common  stime                           sys_stime                       compat_sys_stime
+26      common  ptrace                          sys_ptrace                      compat_sys_ptrace
+27      common  alarm                           sys_alarm
+28      common  fstat                           sys_newfstat                    compat_sys_newfstat
+29      common  pause                           sys_pause
+30      common  utime                           sys_utime                       compat_sys_utime
+31      common  connect                         sys_connect
+32      common  listen                          sys_listen
+33      common  access                          sys_access
+34      common  nice                            sys_nice
+35      common  accept                          sys_accept
+36      common  sync                            sys_sync
+37      common  kill                            sys_kill
+38      common  rename                          sys_rename
+39      common  mkdir                           sys_mkdir
+40      common  rmdir                           sys_rmdir
+41      common  dup                             sys_dup
+42      common  pipe                            sys_pipe
+43      common  times                           sys_times                       compat_sys_times
+44      common  getsockname                     sys_getsockname
+45      common  brk                             sys_brk
+46      common  setgid                          sys_setgid
+47      common  getgid                          sys_getgid
+48      common  signal                          sys_signal
+49      common  geteuid                         sys_geteuid
+50      common  getegid                         sys_getegid
+51      common  acct                            sys_acct
+52      common  umount2                         sys_umount
+53      common  getpeername                     sys_getpeername
+54      common  ioctl                           sys_ioctl                       compat_sys_ioctl
+55      common  fcntl                           sys_fcntl                       compat_sys_fcntl
+56      common  socketpair                      sys_socketpair
+57      common  setpgid                         sys_setpgid
+58      common  send                            sys_send
+59      common  uname                           sys_newuname
+60      common  umask                           sys_umask
+61      common  chroot                          sys_chroot
+62      common  ustat                           sys_ustat                       compat_sys_ustat
+63      common  dup2                            sys_dup2
+64      common  getppid                         sys_getppid
+65      common  getpgrp                         sys_getpgrp
+66      common  setsid                          sys_setsid
+67      common  pivot_root                      sys_pivot_root
+68      common  sgetmask                        sys_sgetmask                    sys32_unimplemented
+69      common  ssetmask                        sys_ssetmask                    sys32_unimplemented
+70      common  setreuid                        sys_setreuid
+71      common  setregid                        sys_setregid
+72      common  mincore                         sys_mincore
+73      common  sigpending                      sys_sigpending                  compat_sys_sigpending
+74      common  sethostname                     sys_sethostname
+75      common  setrlimit                       sys_setrlimit                   compat_sys_setrlimit
+76      common  getrlimit                       sys_getrlimit                   compat_sys_getrlimit
+77      common  getrusage                       sys_getrusage                   compat_sys_getrusage
+78      common  gettimeofday                    sys_gettimeofday                compat_sys_gettimeofday
+79      common  settimeofday                    sys_settimeofday                compat_sys_settimeofday
+80      common  getgroups                       sys_getgroups
+81      common  setgroups                       sys_setgroups
+82      common  sendto                          sys_sendto
+83      common  symlink                         sys_symlink
+84      common  lstat                           sys_newlstat                    compat_sys_newlstat
+85      common  readlink                        sys_readlink
+86      common  uselib                          sys_ni_syscall
+87      common  swapon                          sys_swapon
+88      common  reboot                          sys_reboot
+89      common  mmap2                           sys_mmap2
+90      common  mmap                            sys_mmap
+91      common  munmap                          sys_munmap
+92      common  truncate                        sys_truncate                    compat_sys_truncate
+93      common  ftruncate                       sys_ftruncate                   compat_sys_ftruncate
+94      common  fchmod                          sys_fchmod
+95      common  fchown                          sys_fchown
+96      common  getpriority                     sys_getpriority
+97      common  setpriority                     sys_setpriority
+98      common  recv                            sys_recv
+99      common  statfs                          sys_statfs                      compat_sys_statfs
+100     common  fstatfs                         sys_fstatfs                     compat_sys_fstatfs
+101     common  stat64                          sys_stat64
+# 102 was socketcall
+103     common  syslog                          sys_syslog
+104     common  setitimer                       sys_setitimer                   compat_sys_setitimer
+105     common  getitimer                       sys_getitimer                   compat_sys_getitimer
+106     common  capget                          sys_capget
+107     common  capset                          sys_capset
+108     32      pread64                         parisc_pread64
+108     64      pread64                         sys_pread64
+109     32      pwrite64                        parisc_pwrite64
+109     64      pwrite64                        sys_pwrite64
+110     common  getcwd                          sys_getcwd
+111     common  vhangup                         sys_vhangup
+112     common  fstat64                         sys_fstat64
+113     common  vfork                           sys_vfork_wrapper
+114     common  wait4                           sys_wait4                       compat_sys_wait4
+115     common  swapoff                         sys_swapoff
+116     common  sysinfo                         sys_sysinfo                     compat_sys_sysinfo
+117     common  shutdown                        sys_shutdown
+118     common  fsync                           sys_fsync
+119     common  madvise                         sys_madvise
+120     common  clone                           sys_clone_wrapper
+121     common  setdomainname                   sys_setdomainname
+122     common  sendfile                        sys_sendfile                    compat_sys_sendfile
+123     common  recvfrom                        sys_recvfrom
+124     common  adjtimex                        sys_adjtimex                    compat_sys_adjtimex
+125     common  mprotect                        sys_mprotect
+126     common  sigprocmask                     sys_sigprocmask                 compat_sys_sigprocmask
+# 127 was create_module
+128     common  init_module                     sys_init_module
+129     common  delete_module                   sys_delete_module
+# 130 was get_kernel_syms
+131     common  quotactl                        sys_quotactl
+132     common  getpgid                         sys_getpgid
+133     common  fchdir                          sys_fchdir
+134     common  bdflush                         sys_bdflush
+135     common  sysfs                           sys_sysfs
+136     32      personality                     parisc_personality
+136     64      personality                     sys_personality
+# 137 was afs_syscall
+138     common  setfsuid                        sys_setfsuid
+139     common  setfsgid                        sys_setfsgid
+140     common  _llseek                         sys_llseek
+141     common  getdents                        sys_getdents                    compat_sys_getdents
+142     common  _newselect                      sys_select                      compat_sys_select
+143     common  flock                           sys_flock
+144     common  msync                           sys_msync
+145     common  readv                           sys_readv                       compat_sys_readv
+146     common  writev                          sys_writev                      compat_sys_writev
+147     common  getsid                          sys_getsid
+148     common  fdatasync                       sys_fdatasync
+149     common  _sysctl                         sys_sysctl                      compat_sys_sysctl
+150     common  mlock                           sys_mlock
+151     common  munlock                         sys_munlock
+152     common  mlockall                        sys_mlockall
+153     common  munlockall                      sys_munlockall
+154     common  sched_setparam                  sys_sched_setparam
+155     common  sched_getparam                  sys_sched_getparam
+156     common  sched_setscheduler              sys_sched_setscheduler
+157     common  sched_getscheduler              sys_sched_getscheduler
+158     common  sched_yield                     sys_sched_yield
+159     common  sched_get_priority_max          sys_sched_get_priority_max
+160     common  sched_get_priority_min          sys_sched_get_priority_min
+161     common  sched_rr_get_interval           sys_sched_rr_get_interval       compat_sys_sched_rr_get_interval
+162     common  nanosleep                       sys_nanosleep                   compat_sys_nanosleep
+163     common  mremap                          sys_mremap
+164     common  setresuid                       sys_setresuid
+165     common  getresuid                       sys_getresuid
+166     common  sigaltstack                     sys_sigaltstack                 compat_sys_sigaltstack
+# 167 was query_module
+168     common  poll                            sys_poll
+# 169 was nfsservctl
+170     common  setresgid                       sys_setresgid
+171     common  getresgid                       sys_getresgid
+172     common  prctl                           sys_prctl
+173     common  rt_sigreturn                    sys_rt_sigreturn_wrapper
+174     common  rt_sigaction                    sys_rt_sigaction                compat_sys_rt_sigaction
+175     common  rt_sigprocmask                  sys_rt_sigprocmask              compat_sys_rt_sigprocmask
+176     common  rt_sigpending                   sys_rt_sigpending               compat_sys_rt_sigpending
+177     common  rt_sigtimedwait                 sys_rt_sigtimedwait             compat_sys_rt_sigtimedwait
+178     common  rt_sigqueueinfo                 sys_rt_sigqueueinfo             compat_sys_rt_sigqueueinfo
+179     common  rt_sigsuspend                   sys_rt_sigsuspend               compat_sys_rt_sigsuspend
+180     common  chown                           sys_chown
+181     common  setsockopt                      sys_setsockopt                  compat_sys_setsockopt
+182     common  getsockopt                      sys_getsockopt                  compat_sys_getsockopt
+183     common  sendmsg                         sys_sendmsg                     compat_sys_sendmsg
+184     common  recvmsg                         sys_recvmsg                     compat_sys_recvmsg
+185     common  semop                           sys_semop
+186     common  semget                          sys_semget
+187     common  semctl                          sys_semctl                      compat_sys_semctl
+188     common  msgsnd                          sys_msgsnd                      compat_sys_msgsnd
+189     common  msgrcv                          sys_msgrcv                      compat_sys_msgrcv
+190     common  msgget                          sys_msgget
+191     common  msgctl                          sys_msgctl                      compat_sys_msgctl
+192     common  shmat                           sys_shmat                       compat_sys_shmat
+193     common  shmdt                           sys_shmdt
+194     common  shmget                          sys_shmget
+195     common  shmctl                          sys_shmctl                      compat_sys_shmctl
+# 196 was getpmsg
+# 197 was putpmsg
+198     common  lstat64                         sys_lstat64
+199     32      truncate64                      parisc_truncate64
+199     64      truncate64                      sys_truncate64
+200     32      ftruncate64                     parisc_ftruncate64
+200     64      ftruncate64                     sys_ftruncate64
+201     common  getdents64                      sys_getdents64
+202     common  fcntl64                         sys_fcntl64                     compat_sys_fcntl64
+# 203 was attrctl
+# 204 was acl_get
+# 205 was acl_set
+206     common  gettid                          sys_gettid
+207     32      readahead                       parisc_readahead
+207     64      readahead                       sys_readahead
+208     common  tkill                           sys_tkill
+209     common  sendfile64                      sys_sendfile64                  compat_sys_sendfile64
+210     common  futex                           sys_futex                       compat_sys_futex
+211     common  sched_setaffinity               sys_sched_setaffinity           compat_sys_sched_setaffinity
+212     common  sched_getaffinity               sys_sched_getaffinity           compat_sys_sched_getaffinity
+# 213 was set_thread_area
+# 214 was get_thread_area
+215     common  io_setup                        sys_io_setup                    compat_sys_io_setup
+216     common  io_destroy                      sys_io_destroy
+217     common  io_getevents                    sys_io_getevents                compat_sys_io_getevents
+218     common  io_submit                       sys_io_submit                   compat_sys_io_submit
+219     common  io_cancel                       sys_io_cancel
+# 220 was alloc_hugepages
+# 221 was free_hugepages
+222     common  exit_group                      sys_exit_group
+223     common  lookup_dcookie                  sys_lookup_dcookie              compat_sys_lookup_dcookie
+224     common  epoll_create                    sys_epoll_create
+225     common  epoll_ctl                       sys_epoll_ctl
+226     common  epoll_wait                      sys_epoll_wait
+227     common  remap_file_pages                sys_remap_file_pages
+228     common  semtimedop                      sys_semtimedop                  compat_sys_semtimedop
+229     common  mq_open                         sys_mq_open                     compat_sys_mq_open
+230     common  mq_unlink                       sys_mq_unlink
+231     common  mq_timedsend                    sys_mq_timedsend                compat_sys_mq_timedsend
+232     common  mq_timedreceive                 sys_mq_timedreceive             compat_sys_mq_timedreceive
+233     common  mq_notify                       sys_mq_notify                   compat_sys_mq_notify
+234     common  mq_getsetattr                   sys_mq_getsetattr               compat_sys_mq_getsetattr
+235     common  waitid                          sys_waitid                      compat_sys_waitid
+236     32      fadvise64_64                    parisc_fadvise64_64
+236     64      fadvise64_64                    sys_fadvise64_64
+237     common  set_tid_address                 sys_set_tid_address
+238     common  setxattr                        sys_setxattr
+239     common  lsetxattr                       sys_lsetxattr
+240     common  fsetxattr                       sys_fsetxattr
+241     common  getxattr                        sys_getxattr
+242     common  lgetxattr                       sys_lgetxattr
+243     common  fgetxattr                       sys_fgetxattr
+244     common  listxattr                       sys_listxattr
+245     common  llistxattr                      sys_llistxattr
+246     common  flistxattr                      sys_flistxattr
+247     common  removexattr                     sys_removexattr
+248     common  lremovexattr                    sys_lremovexattr
+249     common  fremovexattr                    sys_fremovexattr
+250     common  timer_create                    sys_timer_create                compat_sys_timer_create
+251     common  timer_settime                   sys_timer_settime               compat_sys_timer_settime
+252     common  timer_gettime                   sys_timer_gettime               compat_sys_timer_gettime
+253     common  timer_getoverrun                sys_timer_getoverrun
+254     common  timer_delete                    sys_timer_delete
+255     common  clock_settime                   sys_clock_settime               compat_sys_clock_settime
+256     common  clock_gettime                   sys_clock_gettime               compat_sys_clock_gettime
+257     common  clock_getres                    sys_clock_getres                compat_sys_clock_getres
+258     common  clock_nanosleep                 sys_clock_nanosleep             compat_sys_clock_nanosleep
+259     common  tgkill                          sys_tgkill
+260     common  mbind                           sys_mbind                       compat_sys_mbind
+261     common  get_mempolicy                   sys_get_mempolicy               compat_sys_get_mempolicy
+262     common  set_mempolicy                   sys_set_mempolicy               compat_sys_set_mempolicy
+# 263 was vserver
+264     common  add_key                         sys_add_key
+265     common  request_key                     sys_request_key
+266     common  keyctl                          sys_keyctl                      compat_sys_keyctl
+267     common  ioprio_set                      sys_ioprio_set
+268     common  ioprio_get                      sys_ioprio_get
+269     common  inotify_init                    sys_inotify_init
+270     common  inotify_add_watch               sys_inotify_add_watch
+271     common  inotify_rm_watch                sys_inotify_rm_watch
+272     common  migrate_pages                   sys_migrate_pages
+273     common  pselect6                        sys_pselect6                    compat_sys_pselect6
+274     common  ppoll                           sys_ppoll                       compat_sys_ppoll
+275     common  openat                          sys_openat                      compat_sys_openat
+276     common  mkdirat                         sys_mkdirat
+277     common  mknodat                         sys_mknodat
+278     common  fchownat                        sys_fchownat
+279     common  futimesat                       sys_futimesat                   compat_sys_futimesat
+280     common  fstatat64                       sys_fstatat64
+281     common  unlinkat                        sys_unlinkat
+282     common  renameat                        sys_renameat
+283     common  linkat                          sys_linkat
+284     common  symlinkat                       sys_symlinkat
+285     common  readlinkat                      sys_readlinkat
+286     common  fchmodat                        sys_fchmodat
+287     common  faccessat                       sys_faccessat
+288     common  unshare                         sys_unshare
+289     common  set_robust_list                 sys_set_robust_list             compat_sys_set_robust_list
+290     common  get_robust_list                 sys_get_robust_list             compat_sys_get_robust_list
+291     common  splice                          sys_splice
+292     32      sync_file_range                 parisc_sync_file_range
+292     64      sync_file_range                 sys_sync_file_range
+293     common  tee                             sys_tee
+294     common  vmsplice                        sys_vmsplice                    compat_sys_vmsplice
+295     common  move_pages                      sys_move_pages                  compat_sys_move_pages
+296     common  getcpu                          sys_getcpu
+297     common  epoll_pwait                     sys_epoll_pwait                 compat_sys_epoll_pwait
+298     common  statfs64                        sys_statfs64                    compat_sys_statfs64
+299     common  fstatfs64                       sys_fstatfs64                   compat_sys_fstatfs64
+300     common  kexec_load                      sys_kexec_load                  compat_sys_kexec_load
+301     common  utimensat                       sys_utimensat                   compat_sys_utimensat
+302     common  signalfd                        sys_signalfd                    compat_sys_signalfd
+# 303 was timerfd
+304     common  eventfd                         sys_eventfd
+305     32      fallocate                       parisc_fallocate
+305     64      fallocate                       sys_fallocate
+306     common  timerfd_create                  sys_timerfd_create
+307     common  timerfd_settime                 sys_timerfd_settime             compat_sys_timerfd_settime
+308     common  timerfd_gettime                 sys_timerfd_gettime             compat_sys_timerfd_gettime
+309     common  signalfd4                       sys_signalfd4                   compat_sys_signalfd4
+310     common  eventfd2                        sys_eventfd2
+311     common  epoll_create1                   sys_epoll_create1
+312     common  dup3                            sys_dup3
+313     common  pipe2                           sys_pipe2
+314     common  inotify_init1                   sys_inotify_init1
+315     common  preadv                          sys_preadv                      compat_sys_preadv
+316     common  pwritev                         sys_pwritev                     compat_sys_pwritev
+317     common  rt_tgsigqueueinfo               sys_rt_tgsigqueueinfo           compat_sys_rt_tgsigqueueinfo
+318     common  perf_event_open                 sys_perf_event_open
+319     common  recvmmsg                        sys_recvmmsg                    compat_sys_recvmmsg
+320     common  accept4                         sys_accept4
+321     common  prlimit64                       sys_prlimit64
+322     common  fanotify_init                   sys_fanotify_init
+323     common  fanotify_mark                   sys_fanotify_mark               sys32_fanotify_mark
+324     common  clock_adjtime                   sys_clock_adjtime               compat_sys_clock_adjtime
+325     common  name_to_handle_at               sys_name_to_handle_at
+326     common  open_by_handle_at               sys_open_by_handle_at           compat_sys_open_by_handle_at
+327     common  syncfs                          sys_syncfs
+328     common  setns                           sys_setns
+329     common  sendmmsg                        sys_sendmmsg                    compat_sys_sendmmsg
+330     common  process_vm_readv                sys_process_vm_readv            compat_sys_process_vm_readv
+331     common  process_vm_writev               sys_process_vm_writev           compat_sys_process_vm_writev
+332     common  kcmp                            sys_kcmp
+333     common  finit_module                    sys_finit_module
+334     common  sched_setattr                   sys_sched_setattr
+335     common  sched_getattr                   sys_sched_getattr
+336     common  utimes                          sys_utimes                      compat_sys_utimes
+337     common  renameat2                       sys_renameat2
+338     common  seccomp                         sys_seccomp
+339     common  getrandom                       sys_getrandom
+340     common  memfd_create                    sys_memfd_create
+341     common  bpf                             sys_bpf
+342     common  execveat                        sys_execveat                    compat_sys_execveat
+343     common  membarrier                      sys_membarrier
+344     common  userfaultfd                     sys_userfaultfd
+345     common  mlock2                          sys_mlock2
+346     common  copy_file_range                 sys_copy_file_range
+347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
+348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
+349     common  statx                           sys_statx
+350	common  io_pgetevents			sys_io_pgetevents		compat_sys_io_pgetevents
\ No newline at end of file
diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh b/arch/parisc/kernel/syscalls/syscallhdr.sh
new file mode 100644
index 0000000..607d4ca
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
@@ -0,0 +1,35 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+prefix="$4"
+offset="$5"
+
+fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+    echo "#ifndef ${fileguard}"
+    echo "#define ${fileguard}"
+    echo ""
+
+    nxt=0
+    while read nr abi name entry compat ; do
+	if [ -z "$offset" ]; then
+	    echo -e "#define __NR_${prefix}${name}\t$nr"
+	else
+	    echo -e "#define __NR_${prefix}${name}\t($offset + $nr)"
+	fi
+	nxt=$nr
+	let nxt=nxt+1
+    done
+
+    echo ""
+    echo "#ifdef __KERNEL__"
+    echo -e "#define __NR_syscalls\t$nxt"
+    echo "#endif"
+    echo ""
+    echo "#endif /* ${fileguard} */"
+) > "$out"
diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh b/arch/parisc/kernel/syscalls/syscalltbl.sh
new file mode 100644
index 0000000..04abde7
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscalltbl.sh
@@ -0,0 +1,46 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+offset="$4"
+
+emit() {
+    nxt="$1"
+    if [ -z "$offset" ]; then
+	nr="$2"
+    else
+	nr="$2"
+	nr=$((nr+offset))
+    fi
+    entry="$3"
+
+    while [ $nxt -lt $nr ]; do
+	echo "__SYSCALL($nxt, sys_ni_syscall, )"
+        let nxt=nxt+1
+    done
+    echo "__SYSCALL($nxt, $entry, )"
+}
+
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+    if [ -z "$offset" ]; then
+	nxt=0
+    else
+	nxt=$offset
+    fi
+
+    my_abi="$(cut -d'|' -f2 <<< $my_abis)"
+    while read nr abi name entry compat ; do
+	if [ $my_abi = "compat" ]; then
+	    if [ -z "$compat" ]; then
+		emit $nxt $nr $entry
+	    else
+		emit $nxt $nr $compat
+	    fi
+	else
+	    emit $nxt $nr $entry
+	fi
+        let nxt=nxt+1
+    done
+) > "$out"
-- 
1.9.1



From - Thu Nov 08 21:42:11 2018
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v4 4/6] parisc: uapi header and system call table file generation
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System call table generation script must be run to generate
unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
will have changes which will invokes the script.

This patch will generate unistd_32/64.h and syscall_table_
32/64/c32.h files by the syscall table generation script
invoked by arch/parisc/Makefile and the generated files against
the removed files will be identical.

The generated uapi header file will be included in uapi/asm/
unistd_32/64.h and generated system call table support file will
be included by kernel/syscall.S file.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/Makefile                  |   4 +
 arch/parisc/include/asm/Kbuild        |   3 +
 arch/parisc/include/uapi/asm/Kbuild   |   2 +
 arch/parisc/include/uapi/asm/unistd.h | 373 +--------------------------
 arch/parisc/kernel/syscall.S          |  10 +-
 arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------
 6 files changed, 22 insertions(+), 829 deletions(-)
 delete mode 100644 arch/parisc/kernel/syscall_table.S

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5ce0302..6b217da 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -159,6 +159,10 @@ endef
 
 # we require gcc 3.3 or above to compile the kernel
 archprepare: checkbin
+
+archheaders:
+	$(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all
+
 checkbin:
 	@if test "$(cc-version)" -lt "0303"; then \
 		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 2013d63..6b66fb9 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -23,3 +23,6 @@ generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += syscall_table_32.h
+generic-y += syscall_table_64.h
+generic-y += syscall_table_c32.h
diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
index 286ef5a..04360d9 100644
--- a/arch/parisc/include/uapi/asm/Kbuild
+++ b/arch/parisc/include/uapi/asm/Kbuild
@@ -7,3 +7,5 @@ generic-y += kvm_para.h
 generic-y += param.h
 generic-y += poll.h
 generic-y += resource.h
+generic-y += unistd_32.h
+generic-y += unistd_64.h
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index f10d065..518c1d6 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -2,374 +2,13 @@
 #ifndef _UAPI_ASM_PARISC_UNISTD_H_
 #define _UAPI_ASM_PARISC_UNISTD_H_
 
-/*
- * Linux system call numbers.
- *
- * Cary Coutant says that we should just use another syscall gateway
- * page to avoid clashing with the HPUX space, and I think he's right:
- * it will would keep a branch out of our syscall entry path, at the
- * very least.  If we decide to change it later, we can ``just'' tweak
- * the LINUX_GATEWAY_ADDR define at the bottom and make __NR_Linux be
- * 1024 or something.  Oh, and recompile libc. =)
- */
-
-#define __NR_Linux                0
-#define __NR_restart_syscall      (__NR_Linux + 0)
-#define __NR_exit                 (__NR_Linux + 1)
-#define __NR_fork                 (__NR_Linux + 2)
-#define __NR_read                 (__NR_Linux + 3)
-#define __NR_write                (__NR_Linux + 4)
-#define __NR_open                 (__NR_Linux + 5)
-#define __NR_close                (__NR_Linux + 6)
-#define __NR_waitpid              (__NR_Linux + 7)
-#define __NR_creat                (__NR_Linux + 8)
-#define __NR_link                 (__NR_Linux + 9)
-#define __NR_unlink              (__NR_Linux + 10)
-#define __NR_execve              (__NR_Linux + 11)
-#define __NR_chdir               (__NR_Linux + 12)
-#define __NR_time                (__NR_Linux + 13)
-#define __NR_mknod               (__NR_Linux + 14)
-#define __NR_chmod               (__NR_Linux + 15)
-#define __NR_lchown              (__NR_Linux + 16)
-#define __NR_socket              (__NR_Linux + 17)
-#define __NR_stat                (__NR_Linux + 18)
-#define __NR_lseek               (__NR_Linux + 19)
-#define __NR_getpid              (__NR_Linux + 20)
-#define __NR_mount               (__NR_Linux + 21)
-#define __NR_bind                (__NR_Linux + 22)
-#define __NR_setuid              (__NR_Linux + 23)
-#define __NR_getuid              (__NR_Linux + 24)
-#define __NR_stime               (__NR_Linux + 25)
-#define __NR_ptrace              (__NR_Linux + 26)
-#define __NR_alarm               (__NR_Linux + 27)
-#define __NR_fstat               (__NR_Linux + 28)
-#define __NR_pause               (__NR_Linux + 29)
-#define __NR_utime               (__NR_Linux + 30)
-#define __NR_connect             (__NR_Linux + 31)
-#define __NR_listen              (__NR_Linux + 32)
-#define __NR_access              (__NR_Linux + 33)
-#define __NR_nice                (__NR_Linux + 34)
-#define __NR_accept              (__NR_Linux + 35)
-#define __NR_sync                (__NR_Linux + 36)
-#define __NR_kill                (__NR_Linux + 37)
-#define __NR_rename              (__NR_Linux + 38)
-#define __NR_mkdir               (__NR_Linux + 39)
-#define __NR_rmdir               (__NR_Linux + 40)
-#define __NR_dup                 (__NR_Linux + 41)
-#define __NR_pipe                (__NR_Linux + 42)
-#define __NR_times               (__NR_Linux + 43)
-#define __NR_getsockname         (__NR_Linux + 44)
-#define __NR_brk                 (__NR_Linux + 45)
-#define __NR_setgid              (__NR_Linux + 46)
-#define __NR_getgid              (__NR_Linux + 47)
-#define __NR_signal              (__NR_Linux + 48)
-#define __NR_geteuid             (__NR_Linux + 49)
-#define __NR_getegid             (__NR_Linux + 50)
-#define __NR_acct                (__NR_Linux + 51)
-#define __NR_umount2             (__NR_Linux + 52)
-#define __NR_getpeername         (__NR_Linux + 53)
-#define __NR_ioctl               (__NR_Linux + 54)
-#define __NR_fcntl               (__NR_Linux + 55)
-#define __NR_socketpair          (__NR_Linux + 56)
-#define __NR_setpgid             (__NR_Linux + 57)
-#define __NR_send                (__NR_Linux + 58)
-#define __NR_uname               (__NR_Linux + 59)
-#define __NR_umask               (__NR_Linux + 60)
-#define __NR_chroot              (__NR_Linux + 61)
-#define __NR_ustat               (__NR_Linux + 62)
-#define __NR_dup2                (__NR_Linux + 63)
-#define __NR_getppid             (__NR_Linux + 64)
-#define __NR_getpgrp             (__NR_Linux + 65)
-#define __NR_setsid              (__NR_Linux + 66)
-#define __NR_pivot_root          (__NR_Linux + 67)
-#define __NR_sgetmask            (__NR_Linux + 68)
-#define __NR_ssetmask            (__NR_Linux + 69)
-#define __NR_setreuid            (__NR_Linux + 70)
-#define __NR_setregid            (__NR_Linux + 71)
-#define __NR_mincore             (__NR_Linux + 72)
-#define __NR_sigpending          (__NR_Linux + 73)
-#define __NR_sethostname         (__NR_Linux + 74)
-#define __NR_setrlimit           (__NR_Linux + 75)
-#define __NR_getrlimit           (__NR_Linux + 76)
-#define __NR_getrusage           (__NR_Linux + 77)
-#define __NR_gettimeofday        (__NR_Linux + 78)
-#define __NR_settimeofday        (__NR_Linux + 79)
-#define __NR_getgroups           (__NR_Linux + 80)
-#define __NR_setgroups           (__NR_Linux + 81)
-#define __NR_sendto              (__NR_Linux + 82)
-#define __NR_symlink             (__NR_Linux + 83)
-#define __NR_lstat               (__NR_Linux + 84)
-#define __NR_readlink            (__NR_Linux + 85)
-#define __NR_uselib              (__NR_Linux + 86)
-#define __NR_swapon              (__NR_Linux + 87)
-#define __NR_reboot              (__NR_Linux + 88)
-#define __NR_mmap2               (__NR_Linux + 89)
-#define __NR_mmap                (__NR_Linux + 90)
-#define __NR_munmap              (__NR_Linux + 91)
-#define __NR_truncate            (__NR_Linux + 92)
-#define __NR_ftruncate           (__NR_Linux + 93)
-#define __NR_fchmod              (__NR_Linux + 94)
-#define __NR_fchown              (__NR_Linux + 95)
-#define __NR_getpriority         (__NR_Linux + 96)
-#define __NR_setpriority         (__NR_Linux + 97)
-#define __NR_recv                (__NR_Linux + 98)
-#define __NR_statfs              (__NR_Linux + 99)
-#define __NR_fstatfs            (__NR_Linux + 100)
-#define __NR_stat64             (__NR_Linux + 101)
-/* #define __NR_socketcall         (__NR_Linux + 102) */
-#define __NR_syslog             (__NR_Linux + 103)
-#define __NR_setitimer          (__NR_Linux + 104)
-#define __NR_getitimer          (__NR_Linux + 105)
-#define __NR_capget             (__NR_Linux + 106)
-#define __NR_capset             (__NR_Linux + 107)
-#define __NR_pread64            (__NR_Linux + 108)
-#define __NR_pwrite64           (__NR_Linux + 109)
-#define __NR_getcwd             (__NR_Linux + 110)
-#define __NR_vhangup            (__NR_Linux + 111)
-#define __NR_fstat64            (__NR_Linux + 112)
-#define __NR_vfork              (__NR_Linux + 113)
-#define __NR_wait4              (__NR_Linux + 114)
-#define __NR_swapoff            (__NR_Linux + 115)
-#define __NR_sysinfo            (__NR_Linux + 116)
-#define __NR_shutdown           (__NR_Linux + 117)
-#define __NR_fsync              (__NR_Linux + 118)
-#define __NR_madvise            (__NR_Linux + 119)
-#define __NR_clone              (__NR_Linux + 120)
-#define __NR_setdomainname      (__NR_Linux + 121)
-#define __NR_sendfile           (__NR_Linux + 122)
-#define __NR_recvfrom           (__NR_Linux + 123)
-#define __NR_adjtimex           (__NR_Linux + 124)
-#define __NR_mprotect           (__NR_Linux + 125)
-#define __NR_sigprocmask        (__NR_Linux + 126)
-#define __NR_create_module      (__NR_Linux + 127) /* not used */
-#define __NR_init_module        (__NR_Linux + 128)
-#define __NR_delete_module      (__NR_Linux + 129)
-#define __NR_get_kernel_syms    (__NR_Linux + 130) /* not used */
-#define __NR_quotactl           (__NR_Linux + 131)
-#define __NR_getpgid            (__NR_Linux + 132)
-#define __NR_fchdir             (__NR_Linux + 133)
-#define __NR_bdflush            (__NR_Linux + 134)
-#define __NR_sysfs              (__NR_Linux + 135)
-#define __NR_personality        (__NR_Linux + 136)
-#define __NR_afs_syscall        (__NR_Linux + 137) /* not used */
-#define __NR_setfsuid           (__NR_Linux + 138)
-#define __NR_setfsgid           (__NR_Linux + 139)
-#define __NR__llseek            (__NR_Linux + 140)
-#define __NR_getdents           (__NR_Linux + 141)
-#define __NR__newselect         (__NR_Linux + 142)
-#define __NR_flock              (__NR_Linux + 143)
-#define __NR_msync              (__NR_Linux + 144)
-#define __NR_readv              (__NR_Linux + 145)
-#define __NR_writev             (__NR_Linux + 146)
-#define __NR_getsid             (__NR_Linux + 147)
-#define __NR_fdatasync          (__NR_Linux + 148)
-#define __NR__sysctl            (__NR_Linux + 149)
-#define __NR_mlock              (__NR_Linux + 150)
-#define __NR_munlock            (__NR_Linux + 151)
-#define __NR_mlockall           (__NR_Linux + 152)
-#define __NR_munlockall         (__NR_Linux + 153)
-#define __NR_sched_setparam             (__NR_Linux + 154)
-#define __NR_sched_getparam             (__NR_Linux + 155)
-#define __NR_sched_setscheduler         (__NR_Linux + 156)
-#define __NR_sched_getscheduler         (__NR_Linux + 157)
-#define __NR_sched_yield                (__NR_Linux + 158)
-#define __NR_sched_get_priority_max     (__NR_Linux + 159)
-#define __NR_sched_get_priority_min     (__NR_Linux + 160)
-#define __NR_sched_rr_get_interval      (__NR_Linux + 161)
-#define __NR_nanosleep          (__NR_Linux + 162)
-#define __NR_mremap             (__NR_Linux + 163)
-#define __NR_setresuid          (__NR_Linux + 164)
-#define __NR_getresuid          (__NR_Linux + 165)
-#define __NR_sigaltstack        (__NR_Linux + 166)
-#define __NR_query_module       (__NR_Linux + 167) /* not used */
-#define __NR_poll               (__NR_Linux + 168)
-#define __NR_nfsservctl         (__NR_Linux + 169) /* not used */
-#define __NR_setresgid          (__NR_Linux + 170)
-#define __NR_getresgid          (__NR_Linux + 171)
-#define __NR_prctl              (__NR_Linux + 172)
-#define __NR_rt_sigreturn       (__NR_Linux + 173)
-#define __NR_rt_sigaction       (__NR_Linux + 174)
-#define __NR_rt_sigprocmask     (__NR_Linux + 175)
-#define __NR_rt_sigpending      (__NR_Linux + 176)
-#define __NR_rt_sigtimedwait    (__NR_Linux + 177)
-#define __NR_rt_sigqueueinfo    (__NR_Linux + 178)
-#define __NR_rt_sigsuspend      (__NR_Linux + 179)
-#define __NR_chown              (__NR_Linux + 180)
-#define __NR_setsockopt         (__NR_Linux + 181)
-#define __NR_getsockopt         (__NR_Linux + 182)
-#define __NR_sendmsg            (__NR_Linux + 183)
-#define __NR_recvmsg            (__NR_Linux + 184)
-#define __NR_semop              (__NR_Linux + 185)
-#define __NR_semget             (__NR_Linux + 186)
-#define __NR_semctl             (__NR_Linux + 187)
-#define __NR_msgsnd             (__NR_Linux + 188)
-#define __NR_msgrcv             (__NR_Linux + 189)
-#define __NR_msgget             (__NR_Linux + 190)
-#define __NR_msgctl             (__NR_Linux + 191)
-#define __NR_shmat              (__NR_Linux + 192)
-#define __NR_shmdt              (__NR_Linux + 193)
-#define __NR_shmget             (__NR_Linux + 194)
-#define __NR_shmctl             (__NR_Linux + 195)
-#define __NR_getpmsg            (__NR_Linux + 196) /* not used */
-#define __NR_putpmsg            (__NR_Linux + 197) /* not used */
-#define __NR_lstat64            (__NR_Linux + 198)
-#define __NR_truncate64         (__NR_Linux + 199)
-#define __NR_ftruncate64        (__NR_Linux + 200)
-#define __NR_getdents64         (__NR_Linux + 201)
-#define __NR_fcntl64            (__NR_Linux + 202)
-#define __NR_attrctl            (__NR_Linux + 203) /* not used */
-#define __NR_acl_get            (__NR_Linux + 204) /* not used */
-#define __NR_acl_set            (__NR_Linux + 205) /* not used */
-#define __NR_gettid             (__NR_Linux + 206)
-#define __NR_readahead          (__NR_Linux + 207)
-#define __NR_tkill              (__NR_Linux + 208)
-#define __NR_sendfile64         (__NR_Linux + 209)
-#define __NR_futex              (__NR_Linux + 210)
-#define __NR_sched_setaffinity  (__NR_Linux + 211)
-#define __NR_sched_getaffinity  (__NR_Linux + 212)
-#define __NR_set_thread_area    (__NR_Linux + 213) /* not used */
-#define __NR_get_thread_area    (__NR_Linux + 214) /* not used */
-#define __NR_io_setup           (__NR_Linux + 215)
-#define __NR_io_destroy         (__NR_Linux + 216)
-#define __NR_io_getevents       (__NR_Linux + 217)
-#define __NR_io_submit          (__NR_Linux + 218)
-#define __NR_io_cancel          (__NR_Linux + 219)
-#define __NR_alloc_hugepages    (__NR_Linux + 220) /* not used */
-#define __NR_free_hugepages     (__NR_Linux + 221) /* not used */
-#define __NR_exit_group         (__NR_Linux + 222)
-#define __NR_lookup_dcookie     (__NR_Linux + 223)
-#define __NR_epoll_create       (__NR_Linux + 224)
-#define __NR_epoll_ctl          (__NR_Linux + 225)
-#define __NR_epoll_wait         (__NR_Linux + 226)
-#define __NR_remap_file_pages   (__NR_Linux + 227)
-#define __NR_semtimedop         (__NR_Linux + 228)
-#define __NR_mq_open            (__NR_Linux + 229)
-#define __NR_mq_unlink          (__NR_Linux + 230)
-#define __NR_mq_timedsend       (__NR_Linux + 231)
-#define __NR_mq_timedreceive    (__NR_Linux + 232)
-#define __NR_mq_notify          (__NR_Linux + 233)
-#define __NR_mq_getsetattr      (__NR_Linux + 234)
-#define __NR_waitid		(__NR_Linux + 235)
-#define __NR_fadvise64_64	(__NR_Linux + 236)
-#define __NR_set_tid_address	(__NR_Linux + 237)
-#define __NR_setxattr		(__NR_Linux + 238)
-#define __NR_lsetxattr		(__NR_Linux + 239)
-#define __NR_fsetxattr		(__NR_Linux + 240)
-#define __NR_getxattr		(__NR_Linux + 241)
-#define __NR_lgetxattr		(__NR_Linux + 242)
-#define __NR_fgetxattr		(__NR_Linux + 243)
-#define __NR_listxattr		(__NR_Linux + 244)
-#define __NR_llistxattr		(__NR_Linux + 245)
-#define __NR_flistxattr		(__NR_Linux + 246)
-#define __NR_removexattr	(__NR_Linux + 247)
-#define __NR_lremovexattr	(__NR_Linux + 248)
-#define __NR_fremovexattr	(__NR_Linux + 249)
-#define __NR_timer_create	(__NR_Linux + 250)
-#define __NR_timer_settime	(__NR_Linux + 251)
-#define __NR_timer_gettime	(__NR_Linux + 252)
-#define __NR_timer_getoverrun	(__NR_Linux + 253)
-#define __NR_timer_delete	(__NR_Linux + 254)
-#define __NR_clock_settime	(__NR_Linux + 255)
-#define __NR_clock_gettime	(__NR_Linux + 256)
-#define __NR_clock_getres	(__NR_Linux + 257)
-#define __NR_clock_nanosleep	(__NR_Linux + 258)
-#define __NR_tgkill		(__NR_Linux + 259)
-#define __NR_mbind		(__NR_Linux + 260)
-#define __NR_get_mempolicy	(__NR_Linux + 261)
-#define __NR_set_mempolicy	(__NR_Linux + 262)
-#define __NR_vserver		(__NR_Linux + 263) /* not used */
-#define __NR_add_key		(__NR_Linux + 264)
-#define __NR_request_key	(__NR_Linux + 265)
-#define __NR_keyctl		(__NR_Linux + 266)
-#define __NR_ioprio_set		(__NR_Linux + 267)
-#define __NR_ioprio_get		(__NR_Linux + 268)
-#define __NR_inotify_init	(__NR_Linux + 269)
-#define __NR_inotify_add_watch	(__NR_Linux + 270)
-#define __NR_inotify_rm_watch	(__NR_Linux + 271)
-#define __NR_migrate_pages	(__NR_Linux + 272)
-#define __NR_pselect6		(__NR_Linux + 273)
-#define __NR_ppoll		(__NR_Linux + 274)
-#define __NR_openat		(__NR_Linux + 275)
-#define __NR_mkdirat		(__NR_Linux + 276)
-#define __NR_mknodat		(__NR_Linux + 277)
-#define __NR_fchownat		(__NR_Linux + 278)
-#define __NR_futimesat		(__NR_Linux + 279)
-#define __NR_fstatat64		(__NR_Linux + 280)
-#define __NR_unlinkat		(__NR_Linux + 281)
-#define __NR_renameat		(__NR_Linux + 282)
-#define __NR_linkat		(__NR_Linux + 283)
-#define __NR_symlinkat		(__NR_Linux + 284)
-#define __NR_readlinkat		(__NR_Linux + 285)
-#define __NR_fchmodat		(__NR_Linux + 286)
-#define __NR_faccessat		(__NR_Linux + 287)
-#define __NR_unshare		(__NR_Linux + 288)
-#define __NR_set_robust_list	(__NR_Linux + 289)
-#define __NR_get_robust_list	(__NR_Linux + 290)
-#define __NR_splice		(__NR_Linux + 291)
-#define __NR_sync_file_range	(__NR_Linux + 292)
-#define __NR_tee		(__NR_Linux + 293)
-#define __NR_vmsplice		(__NR_Linux + 294)
-#define __NR_move_pages		(__NR_Linux + 295)
-#define __NR_getcpu		(__NR_Linux + 296)
-#define __NR_epoll_pwait	(__NR_Linux + 297)
-#define __NR_statfs64		(__NR_Linux + 298)
-#define __NR_fstatfs64		(__NR_Linux + 299)
-#define __NR_kexec_load		(__NR_Linux + 300)
-#define __NR_utimensat		(__NR_Linux + 301)
-#define __NR_signalfd		(__NR_Linux + 302)
-#define __NR_timerfd		(__NR_Linux + 303) /* not used */
-#define __NR_eventfd		(__NR_Linux + 304)
-#define __NR_fallocate		(__NR_Linux + 305)
-#define __NR_timerfd_create	(__NR_Linux + 306)
-#define __NR_timerfd_settime	(__NR_Linux + 307)
-#define __NR_timerfd_gettime	(__NR_Linux + 308)
-#define __NR_signalfd4		(__NR_Linux + 309)
-#define __NR_eventfd2		(__NR_Linux + 310)
-#define __NR_epoll_create1	(__NR_Linux + 311)
-#define __NR_dup3		(__NR_Linux + 312)
-#define __NR_pipe2		(__NR_Linux + 313)
-#define __NR_inotify_init1	(__NR_Linux + 314)
-#define __NR_preadv		(__NR_Linux + 315)
-#define __NR_pwritev		(__NR_Linux + 316)
-#define __NR_rt_tgsigqueueinfo	(__NR_Linux + 317)
-#define __NR_perf_event_open	(__NR_Linux + 318)
-#define __NR_recvmmsg		(__NR_Linux + 319)
-#define __NR_accept4		(__NR_Linux + 320)
-#define __NR_prlimit64		(__NR_Linux + 321)
-#define __NR_fanotify_init	(__NR_Linux + 322)
-#define __NR_fanotify_mark	(__NR_Linux + 323)
-#define __NR_clock_adjtime	(__NR_Linux + 324)
-#define __NR_name_to_handle_at	(__NR_Linux + 325)
-#define __NR_open_by_handle_at	(__NR_Linux + 326)
-#define __NR_syncfs		(__NR_Linux + 327)
-#define __NR_setns		(__NR_Linux + 328)
-#define __NR_sendmmsg		(__NR_Linux + 329)
-#define __NR_process_vm_readv	(__NR_Linux + 330)
-#define __NR_process_vm_writev	(__NR_Linux + 331)
-#define __NR_kcmp		(__NR_Linux + 332)
-#define __NR_finit_module	(__NR_Linux + 333)
-#define __NR_sched_setattr	(__NR_Linux + 334)
-#define __NR_sched_getattr	(__NR_Linux + 335)
-#define __NR_utimes		(__NR_Linux + 336)
-#define __NR_renameat2		(__NR_Linux + 337)
-#define __NR_seccomp		(__NR_Linux + 338)
-#define __NR_getrandom		(__NR_Linux + 339)
-#define __NR_memfd_create	(__NR_Linux + 340)
-#define __NR_bpf		(__NR_Linux + 341)
-#define __NR_execveat		(__NR_Linux + 342)
-#define __NR_membarrier		(__NR_Linux + 343)
-#define __NR_userfaultfd	(__NR_Linux + 344)
-#define __NR_mlock2		(__NR_Linux + 345)
-#define __NR_copy_file_range	(__NR_Linux + 346)
-#define __NR_preadv2		(__NR_Linux + 347)
-#define __NR_pwritev2		(__NR_Linux + 348)
-#define __NR_statx		(__NR_Linux + 349)
-#define __NR_io_pgetevents	(__NR_Linux + 350)
-
-#ifdef __KERNEL__
-#define __NR_syscalls           351
+#define __NR_Linux           0
+#ifdef __LP64__
+#include <asm/unistd_64.h>
+#else
+#include <asm/unistd_32.h>
 #endif
 
-#define LINUX_GATEWAY_ADDR      0x100
+#define LINUX_GATEWAY_ADDR   0x100
 
 #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f453997..f899d43 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -923,17 +923,21 @@ ENTRY(lws_table)
 END(lws_table)
 	/* End of lws table */
 
+#define __SYSCALL(nr, entry, nargs) ASM_ULONG_INSN entry
 	.align 8
 ENTRY(sys_call_table)
 	.export sys_call_table,data
-#include "syscall_table.S"
+#ifdef CONFIG_64BIT
+#include <asm/syscall_table_c32.h>   /* Compat syscalls */
+#else
+#include <asm/syscall_table_32.h>    /* 32-bit native syscalls */
+#endif
 END(sys_call_table)
 
 #ifdef CONFIG_64BIT
 	.align 8
 ENTRY(sys_call_table64)
-#define SYSCALL_TABLE_64BIT
-#include "syscall_table.S"
+#include <asm/syscall_table_64.h>    /* 64-bit native syscalls */
 END(sys_call_table64)
 #endif
 
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
deleted file mode 100644
index fe3f2a4..0000000
--- a/arch/parisc/kernel/syscall_table.S
+++ /dev/null
@@ -1,459 +0,0 @@
-/*    System Call Table
- *
- *    Copyright (C) 1999-2004 Matthew Wilcox <willy at parisc-linux.org>
- *    Copyright (C) 2000-2001 John Marvin <jsm at parisc-linux.org>
- *    Copyright (C) 2000 Alan Modra <amodra at parisc-linux.org>
- *    Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
- *    Copyright (C) 2000 Philipp Rumpf <prumpf with tux.org>
- *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
- *    Copyright (C) 2000 David Huggins-Daines <dhd with pobox.org>
- *    Copyright (C) 2000 Grant Grundler <grundler at parisc-linux.org>
- *    Copyright (C) 2001 Richard Hirst <rhirst with parisc-linux.org>
- *    Copyright (C) 2001-2002 Ryan Bradetich <rbrad at parisc-linux.org>
- *    Copyright (C) 2001-2007 Helge Deller <deller at parisc-linux.org>
- *    Copyright (C) 2000-2001 Thomas Bogendoerfer <tsbogend at parisc-linux.org>
- *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
- *    Copyright (C) 2005-2006 Kyle McMartin <kyle at parisc-linux.org>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#if defined(CONFIG_64BIT) && !defined(SYSCALL_TABLE_64BIT)
-/* Use ENTRY_SAME for 32-bit syscalls which are the same on wide and
- * narrow palinux.  Use ENTRY_DIFF for those where a 32-bit specific
- * implementation is required on wide palinux.  Use ENTRY_COMP where
- * the compatibility layer has a useful 32-bit implementation.
- */
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys32_##_name_
-#define ENTRY_UHOH(_name_) .dword sys32_##unimplemented
-#define ENTRY_OURS(_name_) .dword parisc_##_name_
-#define ENTRY_COMP(_name_) .dword compat_sys_##_name_
-#elif defined(CONFIG_64BIT) && defined(SYSCALL_TABLE_64BIT)
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys_##_name_
-#define ENTRY_UHOH(_name_) .dword sys_##_name_
-#define ENTRY_OURS(_name_) .dword sys_##_name_
-#define ENTRY_COMP(_name_) .dword sys_##_name_
-#else
-#define ENTRY_SAME(_name_) .word sys_##_name_
-#define ENTRY_DIFF(_name_) .word sys_##_name_
-#define ENTRY_UHOH(_name_) .word sys_##_name_
-#define ENTRY_OURS(_name_) .word parisc_##_name_
-#define ENTRY_COMP(_name_) .word sys_##_name_
-#endif
-
-90:	ENTRY_SAME(restart_syscall)	/* 0 */
-91:	ENTRY_SAME(exit)
-	ENTRY_SAME(fork_wrapper)
-	ENTRY_SAME(read)
-	ENTRY_SAME(write)
-	ENTRY_COMP(open)		/* 5 */
-	ENTRY_SAME(close)
-	ENTRY_SAME(waitpid)
-	ENTRY_SAME(creat)
-	ENTRY_SAME(link)
-	ENTRY_SAME(unlink)		/* 10 */
-	ENTRY_COMP(execve)
-	ENTRY_SAME(chdir)
-	/* See comments in kernel/time.c!!! Maybe we don't need this? */
-	ENTRY_COMP(time)
-	ENTRY_SAME(mknod)
-	ENTRY_SAME(chmod)		/* 15 */
-	ENTRY_SAME(lchown)
-	ENTRY_SAME(socket)
-	/* struct stat is MAYBE identical wide and narrow ?? */
-	ENTRY_COMP(newstat)
-	ENTRY_COMP(lseek)
-	ENTRY_SAME(getpid)		/* 20 */
-	/* the 'void * data' parameter may need re-packing in wide */
-	ENTRY_COMP(mount)
-	/* concerned about struct sockaddr in wide/narrow */
-	/* ---> I think sockaddr is OK unless the compiler packs the struct */
-	/*      differently to align the char array */
-	ENTRY_SAME(bind)
-	ENTRY_SAME(setuid)
-	ENTRY_SAME(getuid)
-	ENTRY_COMP(stime)		/* 25 */
-	ENTRY_COMP(ptrace)
-	ENTRY_SAME(alarm)
-	/* see stat comment */
-	ENTRY_COMP(newfstat)
-	ENTRY_SAME(pause)
-	/* struct utimbuf uses time_t which might vary */
-	ENTRY_COMP(utime)		/* 30 */
-	/* struct sockaddr... */
-	ENTRY_SAME(connect)
-	ENTRY_SAME(listen)
-	ENTRY_SAME(access)
-	ENTRY_SAME(nice)
-	/* struct sockaddr... */
-	ENTRY_SAME(accept)		/* 35 */
-	ENTRY_SAME(sync)
-	ENTRY_SAME(kill)
-	ENTRY_SAME(rename)
-	ENTRY_SAME(mkdir)
-	ENTRY_SAME(rmdir)		/* 40 */
-	ENTRY_SAME(dup)
-	ENTRY_SAME(pipe)
-	ENTRY_COMP(times)
-	/* struct sockaddr... */
-	ENTRY_SAME(getsockname)
-	/* it seems possible brk() could return a >4G pointer... */
-	ENTRY_SAME(brk)			/* 45 */
-	ENTRY_SAME(setgid)
-	ENTRY_SAME(getgid)
-	ENTRY_SAME(signal)
-	ENTRY_SAME(geteuid)
-	ENTRY_SAME(getegid)		/* 50 */
-	ENTRY_SAME(acct)
-	ENTRY_SAME(umount)
-	/* struct sockaddr... */
-	ENTRY_SAME(getpeername)
-	ENTRY_COMP(ioctl)
-	ENTRY_COMP(fcntl)		/* 55 */
-	ENTRY_SAME(socketpair)
-	ENTRY_SAME(setpgid)
-	ENTRY_SAME(send)
-	ENTRY_SAME(newuname)
-	ENTRY_SAME(umask)		/* 60 */
-	ENTRY_SAME(chroot)
-	ENTRY_COMP(ustat)
-	ENTRY_SAME(dup2)
-	ENTRY_SAME(getppid)
-	ENTRY_SAME(getpgrp)		/* 65 */
-	ENTRY_SAME(setsid)
-	ENTRY_SAME(pivot_root)
-	/* I don't like this */
-	ENTRY_UHOH(sgetmask)
-	ENTRY_UHOH(ssetmask)
-	ENTRY_SAME(setreuid)		/* 70 */
-	ENTRY_SAME(setregid)
-	ENTRY_SAME(mincore)
-	ENTRY_COMP(sigpending)
-	ENTRY_SAME(sethostname)
-	/* Following 3 have linux-common-code structs containing longs -( */
-	ENTRY_COMP(setrlimit)		/* 75 */
-	ENTRY_COMP(getrlimit)
-	ENTRY_COMP(getrusage)
-	/* struct timeval and timezone are maybe?? consistent wide and narrow */
-	ENTRY_COMP(gettimeofday)
-	ENTRY_COMP(settimeofday)
-	ENTRY_SAME(getgroups)		/* 80 */
-	ENTRY_SAME(setgroups)
-	/* struct socketaddr... */
-	ENTRY_SAME(sendto)
-	ENTRY_SAME(symlink)
-	/* see stat comment */
-	ENTRY_COMP(newlstat)
-	ENTRY_SAME(readlink)		/* 85 */
-	ENTRY_SAME(ni_syscall)	/* was uselib */
-	ENTRY_SAME(swapon)
-	ENTRY_SAME(reboot)
-	ENTRY_SAME(mmap2)
-	ENTRY_SAME(mmap)		/* 90 */
-	ENTRY_SAME(munmap)
-	ENTRY_COMP(truncate)
-	ENTRY_COMP(ftruncate)
-	ENTRY_SAME(fchmod)
-	ENTRY_SAME(fchown)		/* 95 */
-	ENTRY_SAME(getpriority)
-	ENTRY_SAME(setpriority)
-	ENTRY_SAME(recv)
-	ENTRY_COMP(statfs)
-	ENTRY_COMP(fstatfs)		/* 100 */
-	ENTRY_SAME(stat64)
-	ENTRY_SAME(ni_syscall)	/* was socketcall */
-	ENTRY_SAME(syslog)
-	/* even though manpage says struct timeval contains longs, ours has
-	 * time_t and suseconds_t -- both of which are safe wide/narrow */
-	ENTRY_COMP(setitimer)
-	ENTRY_COMP(getitimer)		/* 105 */
-	ENTRY_SAME(capget)
-	ENTRY_SAME(capset)
-	ENTRY_OURS(pread64)
-	ENTRY_OURS(pwrite64)
-	ENTRY_SAME(getcwd)		/* 110 */
-	ENTRY_SAME(vhangup)
-	ENTRY_SAME(fstat64)
-	ENTRY_SAME(vfork_wrapper)
-	/* struct rusage contains longs... */
-	ENTRY_COMP(wait4)
-	ENTRY_SAME(swapoff)		/* 115 */
-	ENTRY_COMP(sysinfo)
-	ENTRY_SAME(shutdown)
-	ENTRY_SAME(fsync)
-	ENTRY_SAME(madvise)
-	ENTRY_SAME(clone_wrapper)	/* 120 */
-	ENTRY_SAME(setdomainname)
-	ENTRY_COMP(sendfile)
-	/* struct sockaddr... */
-	ENTRY_SAME(recvfrom)
-	/* struct timex contains longs */
-	ENTRY_COMP(adjtimex)
-	ENTRY_SAME(mprotect)		/* 125 */
-	/* old_sigset_t forced to 32 bits.  Beware glibc sigset_t */
-	ENTRY_COMP(sigprocmask)
-	ENTRY_SAME(ni_syscall)	/* create_module */
-	ENTRY_SAME(init_module)
-	ENTRY_SAME(delete_module)
-	ENTRY_SAME(ni_syscall)		/* 130: get_kernel_syms */
-	/* time_t inside struct dqblk */
-	ENTRY_SAME(quotactl)
-	ENTRY_SAME(getpgid)
-	ENTRY_SAME(fchdir)
-	ENTRY_SAME(bdflush)
-	ENTRY_SAME(sysfs)		/* 135 */
-	ENTRY_OURS(personality)
-	ENTRY_SAME(ni_syscall)	/* for afs_syscall */
-	ENTRY_SAME(setfsuid)
-	ENTRY_SAME(setfsgid)
-	/* I think this might work */
-	ENTRY_SAME(llseek)		/* 140 */
-	ENTRY_COMP(getdents)
-	/* it is POSSIBLE that select will be OK because even though fd_set
-	 * contains longs, the macros and sizes are clever. */
-	ENTRY_COMP(select)
-	ENTRY_SAME(flock)
-	ENTRY_SAME(msync)
-	/* struct iovec contains pointers */
-	ENTRY_COMP(readv)		/* 145 */
-	ENTRY_COMP(writev)
-	ENTRY_SAME(getsid)
-	ENTRY_SAME(fdatasync)
-	/* struct __sysctl_args is a mess */
-	ENTRY_COMP(sysctl)
-	ENTRY_SAME(mlock)		/* 150 */
-	ENTRY_SAME(munlock)
-	ENTRY_SAME(mlockall)
-	ENTRY_SAME(munlockall)
-	/* struct sched_param is ok for now */
-	ENTRY_SAME(sched_setparam)
-	ENTRY_SAME(sched_getparam)	/* 155 */
-	ENTRY_SAME(sched_setscheduler)
-	ENTRY_SAME(sched_getscheduler)
-	ENTRY_SAME(sched_yield)
-	ENTRY_SAME(sched_get_priority_max)
-	ENTRY_SAME(sched_get_priority_min)	/* 160 */
-	ENTRY_COMP(sched_rr_get_interval)
-	ENTRY_COMP(nanosleep)
-	ENTRY_SAME(mremap)
-	ENTRY_SAME(setresuid)
-	ENTRY_SAME(getresuid)		/* 165 */
-	ENTRY_COMP(sigaltstack)
-	ENTRY_SAME(ni_syscall)		/* query_module */
-	ENTRY_SAME(poll)
-	/* structs contain pointers and an in_addr... */
-	ENTRY_SAME(ni_syscall)		/* was nfsservctl */
-	ENTRY_SAME(setresgid)		/* 170 */
-	ENTRY_SAME(getresgid)
-	ENTRY_SAME(prctl)
-	/* signals need a careful review */
-	ENTRY_SAME(rt_sigreturn_wrapper)
-	ENTRY_COMP(rt_sigaction)
-	ENTRY_COMP(rt_sigprocmask)	/* 175 */
-	ENTRY_COMP(rt_sigpending)
-	ENTRY_COMP(rt_sigtimedwait)
-	/* even though the struct siginfo_t is different, it appears like
-	 * all the paths use values which should be same wide and narrow.
-	 * Also the struct is padded to 128 bytes which means we don't have
-	 * to worry about faulting trying to copy in a larger 64-bit
-	 * struct from a 32-bit user-space app.
-	 */
-	ENTRY_COMP(rt_sigqueueinfo)
-	ENTRY_COMP(rt_sigsuspend)
-	ENTRY_SAME(chown)		/* 180 */
-	/* setsockopt() used by iptables: SO_SET_REPLACE/SO_SET_ADD_COUNTERS */
-	ENTRY_COMP(setsockopt)
-	ENTRY_COMP(getsockopt)
-	ENTRY_COMP(sendmsg)
-	ENTRY_COMP(recvmsg)
-	ENTRY_SAME(semop)		/* 185 */
-	ENTRY_SAME(semget)
-	ENTRY_COMP(semctl)
-	ENTRY_COMP(msgsnd)
-	ENTRY_COMP(msgrcv)
-	ENTRY_SAME(msgget)		/* 190 */
-	ENTRY_COMP(msgctl)
-	ENTRY_COMP(shmat)
-	ENTRY_SAME(shmdt)
-	ENTRY_SAME(shmget)
-	ENTRY_COMP(shmctl)		/* 195 */
-	ENTRY_SAME(ni_syscall)		/* streams1 */
-	ENTRY_SAME(ni_syscall)		/* streams2 */
-	ENTRY_SAME(lstat64)
-	ENTRY_OURS(truncate64)
-	ENTRY_OURS(ftruncate64)		/* 200 */
-	ENTRY_SAME(getdents64)
-	ENTRY_COMP(fcntl64)
-	ENTRY_SAME(ni_syscall)	/* attrctl -- dead */
-	ENTRY_SAME(ni_syscall)	/* acl_get -- dead */
-	ENTRY_SAME(ni_syscall)		/* 205 (acl_set -- dead) */
-	ENTRY_SAME(gettid)
-	ENTRY_OURS(readahead)
-	ENTRY_SAME(tkill)
-	ENTRY_COMP(sendfile64)
-	ENTRY_COMP(futex)		/* 210 */
-	ENTRY_COMP(sched_setaffinity)
-	ENTRY_COMP(sched_getaffinity)
-	ENTRY_SAME(ni_syscall)	/* set_thread_area */
-	ENTRY_SAME(ni_syscall)	/* get_thread_area */
-	ENTRY_COMP(io_setup)		/* 215 */
-	ENTRY_SAME(io_destroy)
-	ENTRY_COMP(io_getevents)
-	ENTRY_COMP(io_submit)
-	ENTRY_SAME(io_cancel)
-	ENTRY_SAME(ni_syscall)		/* 220: was alloc_hugepages */
-	ENTRY_SAME(ni_syscall)		/* was free_hugepages */
-	ENTRY_SAME(exit_group)
-	ENTRY_COMP(lookup_dcookie)
-	ENTRY_SAME(epoll_create)
-	ENTRY_SAME(epoll_ctl)		/* 225 */
-	ENTRY_SAME(epoll_wait)
- 	ENTRY_SAME(remap_file_pages)
-	ENTRY_COMP(semtimedop)
-	ENTRY_COMP(mq_open)
-	ENTRY_SAME(mq_unlink)		/* 230 */
-	ENTRY_COMP(mq_timedsend)
-	ENTRY_COMP(mq_timedreceive)
-	ENTRY_COMP(mq_notify)
-	ENTRY_COMP(mq_getsetattr)
-	ENTRY_COMP(waitid)		/* 235 */
-	ENTRY_OURS(fadvise64_64)
-	ENTRY_SAME(set_tid_address)
-	ENTRY_SAME(setxattr)
-	ENTRY_SAME(lsetxattr)
-	ENTRY_SAME(fsetxattr)		/* 240 */
-	ENTRY_SAME(getxattr)
-	ENTRY_SAME(lgetxattr)
-	ENTRY_SAME(fgetxattr)
-	ENTRY_SAME(listxattr)
-	ENTRY_SAME(llistxattr)		/* 245 */
-	ENTRY_SAME(flistxattr)
-	ENTRY_SAME(removexattr)
-	ENTRY_SAME(lremovexattr)
-	ENTRY_SAME(fremovexattr)
-	ENTRY_COMP(timer_create)	/* 250 */
-	ENTRY_COMP(timer_settime)
-	ENTRY_COMP(timer_gettime)
-	ENTRY_SAME(timer_getoverrun)
-	ENTRY_SAME(timer_delete)
-	ENTRY_COMP(clock_settime)	/* 255 */
-	ENTRY_COMP(clock_gettime)
-	ENTRY_COMP(clock_getres)
-	ENTRY_COMP(clock_nanosleep)
-	ENTRY_SAME(tgkill)
-	ENTRY_COMP(mbind)		/* 260 */
-	ENTRY_COMP(get_mempolicy)
-	ENTRY_COMP(set_mempolicy)
-	ENTRY_SAME(ni_syscall)	/* 263: reserved for vserver */
-	ENTRY_SAME(add_key)
-	ENTRY_SAME(request_key)		/* 265 */
-	ENTRY_COMP(keyctl)
-	ENTRY_SAME(ioprio_set)
-	ENTRY_SAME(ioprio_get)
-	ENTRY_SAME(inotify_init)
-	ENTRY_SAME(inotify_add_watch)	/* 270 */
-	ENTRY_SAME(inotify_rm_watch)
-	ENTRY_SAME(migrate_pages)
-	ENTRY_COMP(pselect6)
-	ENTRY_COMP(ppoll)
-	ENTRY_COMP(openat)		/* 275 */
-	ENTRY_SAME(mkdirat)
-	ENTRY_SAME(mknodat)
-	ENTRY_SAME(fchownat)
-	ENTRY_COMP(futimesat)
-	ENTRY_SAME(fstatat64)		/* 280 */
-	ENTRY_SAME(unlinkat)
-	ENTRY_SAME(renameat)
-	ENTRY_SAME(linkat)
-	ENTRY_SAME(symlinkat)
-	ENTRY_SAME(readlinkat)		/* 285 */
-	ENTRY_SAME(fchmodat)
-	ENTRY_SAME(faccessat)
-	ENTRY_SAME(unshare)
-	ENTRY_COMP(set_robust_list)
-	ENTRY_COMP(get_robust_list)	/* 290 */
-	ENTRY_SAME(splice)
-	ENTRY_OURS(sync_file_range)
-	ENTRY_SAME(tee)
-	ENTRY_COMP(vmsplice)
-	ENTRY_COMP(move_pages)		/* 295 */
-	ENTRY_SAME(getcpu)
-	ENTRY_COMP(epoll_pwait)
-	ENTRY_COMP(statfs64)
-	ENTRY_COMP(fstatfs64)
-	ENTRY_COMP(kexec_load)		/* 300 */
-	ENTRY_COMP(utimensat)
-	ENTRY_COMP(signalfd)
-	ENTRY_SAME(ni_syscall)		/* was timerfd */
-	ENTRY_SAME(eventfd)
-	ENTRY_OURS(fallocate)		/* 305 */
-	ENTRY_SAME(timerfd_create)
-	ENTRY_COMP(timerfd_settime)
-	ENTRY_COMP(timerfd_gettime)
-	ENTRY_COMP(signalfd4)
-	ENTRY_SAME(eventfd2)		/* 310 */
-	ENTRY_SAME(epoll_create1)
-	ENTRY_SAME(dup3)
-	ENTRY_SAME(pipe2)
-	ENTRY_SAME(inotify_init1)
-	ENTRY_COMP(preadv)		/* 315 */
-	ENTRY_COMP(pwritev)
-	ENTRY_COMP(rt_tgsigqueueinfo)
-	ENTRY_SAME(perf_event_open)
-	ENTRY_COMP(recvmmsg)
-	ENTRY_SAME(accept4)		/* 320 */
-	ENTRY_SAME(prlimit64)
-	ENTRY_SAME(fanotify_init)
-	ENTRY_DIFF(fanotify_mark)
-	ENTRY_COMP(clock_adjtime)
-	ENTRY_SAME(name_to_handle_at)	/* 325 */
-	ENTRY_COMP(open_by_handle_at)
-	ENTRY_SAME(syncfs)
-	ENTRY_SAME(setns)
-	ENTRY_COMP(sendmmsg)
-	ENTRY_COMP(process_vm_readv)	/* 330 */
-	ENTRY_COMP(process_vm_writev)
-	ENTRY_SAME(kcmp)
-	ENTRY_SAME(finit_module)
-	ENTRY_SAME(sched_setattr)
-	ENTRY_SAME(sched_getattr)	/* 335 */
-	ENTRY_COMP(utimes)
-	ENTRY_SAME(renameat2)
-	ENTRY_SAME(seccomp)
-	ENTRY_SAME(getrandom)
-	ENTRY_SAME(memfd_create)	/* 340 */
-	ENTRY_SAME(bpf)
-	ENTRY_COMP(execveat)
-	ENTRY_SAME(membarrier)
-	ENTRY_SAME(userfaultfd)
-	ENTRY_SAME(mlock2)		/* 345 */
-	ENTRY_SAME(copy_file_range)
-	ENTRY_COMP(preadv2)
-	ENTRY_COMP(pwritev2)
-	ENTRY_SAME(statx)
-	ENTRY_COMP(io_pgetevents)	/* 350 */
-
-
-.ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
-.error "size of syscall table does not fit value of __NR_Linux_syscalls"
-.endif
-
-#undef ENTRY_SAME
-#undef ENTRY_DIFF
-#undef ENTRY_UHOH
-#undef ENTRY_COMP
-#undef ENTRY_OURS
-- 
1.9.1



From - Thu Nov 08 21:42:11 2018
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00000000
X-Mozilla-Keys:                                                                                 
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From: Firoz Khan <firoz.khan@linaro.org>
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Subject: [PATCH v4 5/6] parisc: wire up rseq system call
Date: Fri, 12 Oct 2018 15:14:01 +0530
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Wire up rseq system call requires an architecture specific
implementation as it not present now.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/kernel/syscalls/syscall.tbl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
index 7c9f268..91317be 100644
--- a/arch/parisc/kernel/syscalls/syscall.tbl
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -366,4 +366,6 @@
 347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
 348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
 349     common  statx                           sys_statx
-350	common  io_pgetevents			sys_io_pgetevents		compat_sys_io_pgetevents
\ No newline at end of file
+350	common  io_pgetevents			sys_io_pgetevents		compat_sys_io_pgetevents
+# rseq requires an architecture specific implementation
+351	common	rseq				sys_rseq
-- 
1.9.1



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Subject: [PATCH v4 6/6] parisc: syscalls: Ignore nfsservctl for other architectures
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This adds an exception to the syscall table checking script.

nfsservctl entry is only provided on x86, and there is no
reason to add it elsewhere. However, including it on the
syscall table caused a warning for most configurations on
non-x86.

<stdin>:696:2: warning: #warning syscall nfsservctl not implemented [-Wcpp]

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 scripts/checksyscalls.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
index ee3dfb5..cf93100 100755
--- a/scripts/checksyscalls.sh
+++ b/scripts/checksyscalls.sh
@@ -150,6 +150,7 @@ cat << EOF
 #define __IGNORE_uselib
 #define __IGNORE__sysctl
 #define __IGNORE_arch_prctl
+#define __IGNORE_nfsservctl
 
 /* ... including the "new" 32-bit uid syscalls */
 #define __IGNORE_lchown32
-- 
1.9.1



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Subject: Re: [PATCH v4 5/6] parisc: wire up rseq system call
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On Fri, Oct 12, 2018 at 11:45 AM Firoz Khan <firoz.khan@linaro.org> wrote:
>
> Wire up rseq system call requires an architecture specific
> implementation as it not present now.
>
> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>

Didn't we conclude that this should be skipped?

       Arnd


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Cc: Kate Stewart <kstewart@linuxfoundation.org>,
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 3/6] parisc: add system call table generation support
Date: Fri, 12 Oct 2018 15:48:04 +0530
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Cc: y2038 Mailman List <y2038@lists.linaro.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux-Arch <linux-arch@vger.kernel.org>,
        Arnd Bergmann <arnd@arndb.de>,
        Deepa Dinamani <deepa.kernel@gmail.com>,
        Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
To: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
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Xref: news.gmane.org gmane.linux.kernel:2897431 gmane.linux.ports.parisc:29137 gmane.linux.kernel.year-2038:3513 gmane.linux.kernel.cross-arch:47729
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2897431>

Hi Arnd, Helge, everyone,

On Fri, 12 Oct 2018 at 15:14, Firoz Khan <firoz.khan@linaro.org> wrote:
>
> The system call tables are in different format in all
> architecture and it will be difficult to manually add or
> modify the system calls in the respective files. To make
> it easy by keeping a script and which'll generate the
> header file and syscall table file so this change will
> unify them across all architectures.
>
> The system call table generation script is added in
> syscalls directory which contain the script to generate
> both uapi header file system call table generation file
> and syscall.tbl file which'll be the input for the
> scripts.
>
> syscall.tbl contains the list of available system calls
> along with system call number and corresponding entry point.
> Add a new system call in this architecture will be possible
> by adding new entry in the syscall.tbl file.
>
> Adding a new table entry consisting of:
>         - System call number.
>         - ABI.
>         - System call name.
>         - Entry point name.
>         - Compat entry name, if required.
>
> syscallhdr.sh and syscalltbl.sh will generate uapi header-
> unistd_32/64.h and syscall_table_32/64/c32.h files respect-
> ively. File syscall_table_32/64/c32.h is included by sys-
> call.S - the real system call table. Both .sh files will
> parse the content syscall.tbl to generate the header and
> table files.
>
> ARM, s390 and x86 architecuture does have the similar support.
> I leverage their implementation to come up with a generic
> solution.
>
> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> ---
>  arch/parisc/kernel/syscalls/Makefile      |  55 +++++
>  arch/parisc/kernel/syscalls/syscall.tbl   | 369 ++++++++++++++++++++++++++++++
>  arch/parisc/kernel/syscalls/syscallhdr.sh |  35 +++
>  arch/parisc/kernel/syscalls/syscalltbl.sh |  46 ++++
>  4 files changed, 505 insertions(+)
>  create mode 100644 arch/parisc/kernel/syscalls/Makefile
>  create mode 100644 arch/parisc/kernel/syscalls/syscall.tbl
>  create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
>  create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh
>
> diff --git a/arch/parisc/kernel/syscalls/Makefile b/arch/parisc/kernel/syscalls/Makefile
> new file mode 100644
> index 0000000..a0af5a3
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/Makefile
> @@ -0,0 +1,55 @@
> +# SPDX-License-Identifier: GPL-2.0
> +kapi := arch/$(SRCARCH)/include/generated/asm
> +uapi := arch/$(SRCARCH)/include/generated/uapi/asm
> +
> +_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
> +         $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
> +
> +syscall := $(srctree)/$(src)/syscall.tbl
> +syshdr := $(srctree)/$(src)/syscallhdr.sh
> +systbl := $(srctree)/$(src)/syscalltbl.sh
> +
> +quiet_cmd_syshdr = SYSHDR  $@
> +      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'  \
> +                  '$(syshdr_abi_$(basetarget))'          \
> +                  '$(syshdr_pfx_$(basetarget))'          \
> +                  '$(syshdr_offset_$(basetarget))'
> +
> +quiet_cmd_systbl = SYSTBL  $@
> +      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'  \
> +                   '$(systbl_abi_$(basetarget))'          \
> +                  '$(systbl_offset_$(basetarget))'
> +
> +syshdr_abi_unistd_32 := common,32
> +syshdr_offset_unistd_32 := __NR_Linux
> +$(uapi)/unistd_32.h: $(syscall) $(syshdr)
> +       $(call if_changed,syshdr)
> +
> +syshdr_abi_unistd_64 := common,64
> +syshdr_offset_unistd_64 := __NR_Linux
> +$(uapi)/unistd_64.h: $(syscall) $(syshdr)
> +       $(call if_changed,syshdr)
> +
> +systbl_abi_syscall_table_32 := common,32
> +$(kapi)/syscall_table_32.h: $(syscall) $(systbl)
> +       $(call if_changed,systbl)
> +
> +systbl_abi_syscall_table_64 := common,64
> +$(kapi)/syscall_table_64.h: $(syscall) $(systbl)
> +       $(call if_changed,systbl)
> +
> +systbl_abi_syscall_table_c32 := common,compat,32
> +$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
> +       $(call if_changed,systbl)
> +
> +uapisyshdr-y                   += unistd_32.h unistd_64.h
> +kapisyshdr-y                   += syscall_table_32.h     \
> +                                   syscall_table_64.h     \
> +                                   syscall_table_c32.h
> +
> +targets        += $(uapisyshdr-y) $(kapisyshdr-y)
> +
> +PHONY += all
> +all: $(addprefix $(uapi)/,$(uapisyshdr-y))
> +all: $(addprefix $(kapi)/,$(kapisyshdr-y))
> +       @:
> diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> new file mode 100644
> index 0000000..7c9f268
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/syscall.tbl
> @@ -0,0 +1,369 @@
> +# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
> +#
> +# system call numbers and entry vectors for parisc
> +#
> +# The format is:
> +# <number> <abi> <name> <entry point> <compat entry point>
> +#
> +# The <abi> can be common, 64, or 32 for this file.
> +#
> +0       common  restart_syscall                 sys_restart_syscall
> +1       common  exit                            sys_exit
> +2       common  fork                            sys_fork_wrapper
> +3       common  read                            sys_read
> +4       common  write                           sys_write
> +5       common  open                            sys_open                        compat_sys_open
> +6       common  close                           sys_close
> +7       common  waitpid                         sys_waitpid
> +8       common  creat                           sys_creat
> +9       common  link                            sys_link
> +10      common  unlink                          sys_unlink
> +11      common  execve                          sys_execve                      compat_sys_execve
> +12      common  chdir                           sys_chdir
> +13      common  time                            sys_time                        compat_sys_time
> +14      common  mknod                           sys_mknod
> +15      common  chmod                           sys_chmod
> +16      common  lchown                          sys_lchown
> +17      common  socket                          sys_socket
> +18      common  stat                            sys_newstat                     compat_sys_newstat
> +19      common  lseek                           sys_lseek                       compat_sys_lseek
> +20      common  getpid                          sys_getpid
> +21      common  mount                           sys_mount                       compat_sys_mount
> +22      common  bind                            sys_bind
> +23      common  setuid                          sys_setuid
> +24      common  getuid                          sys_getuid
> +25      common  stime                           sys_stime                       compat_sys_stime
> +26      common  ptrace                          sys_ptrace                      compat_sys_ptrace
> +27      common  alarm                           sys_alarm
> +28      common  fstat                           sys_newfstat                    compat_sys_newfstat
> +29      common  pause                           sys_pause
> +30      common  utime                           sys_utime                       compat_sys_utime
> +31      common  connect                         sys_connect
> +32      common  listen                          sys_listen
> +33      common  access                          sys_access
> +34      common  nice                            sys_nice
> +35      common  accept                          sys_accept
> +36      common  sync                            sys_sync
> +37      common  kill                            sys_kill
> +38      common  rename                          sys_rename
> +39      common  mkdir                           sys_mkdir
> +40      common  rmdir                           sys_rmdir
> +41      common  dup                             sys_dup
> +42      common  pipe                            sys_pipe
> +43      common  times                           sys_times                       compat_sys_times
> +44      common  getsockname                     sys_getsockname
> +45      common  brk                             sys_brk
> +46      common  setgid                          sys_setgid
> +47      common  getgid                          sys_getgid
> +48      common  signal                          sys_signal
> +49      common  geteuid                         sys_geteuid
> +50      common  getegid                         sys_getegid
> +51      common  acct                            sys_acct
> +52      common  umount2                         sys_umount
> +53      common  getpeername                     sys_getpeername
> +54      common  ioctl                           sys_ioctl                       compat_sys_ioctl
> +55      common  fcntl                           sys_fcntl                       compat_sys_fcntl
> +56      common  socketpair                      sys_socketpair
> +57      common  setpgid                         sys_setpgid
> +58      common  send                            sys_send
> +59      common  uname                           sys_newuname
> +60      common  umask                           sys_umask
> +61      common  chroot                          sys_chroot
> +62      common  ustat                           sys_ustat                       compat_sys_ustat
> +63      common  dup2                            sys_dup2
> +64      common  getppid                         sys_getppid
> +65      common  getpgrp                         sys_getpgrp
> +66      common  setsid                          sys_setsid
> +67      common  pivot_root                      sys_pivot_root
> +68      common  sgetmask                        sys_sgetmask                    sys32_unimplemented
> +69      common  ssetmask                        sys_ssetmask                    sys32_unimplemented
> +70      common  setreuid                        sys_setreuid
> +71      common  setregid                        sys_setregid
> +72      common  mincore                         sys_mincore
> +73      common  sigpending                      sys_sigpending                  compat_sys_sigpending
> +74      common  sethostname                     sys_sethostname
> +75      common  setrlimit                       sys_setrlimit                   compat_sys_setrlimit
> +76      common  getrlimit                       sys_getrlimit                   compat_sys_getrlimit
> +77      common  getrusage                       sys_getrusage                   compat_sys_getrusage
> +78      common  gettimeofday                    sys_gettimeofday                compat_sys_gettimeofday
> +79      common  settimeofday                    sys_settimeofday                compat_sys_settimeofday
> +80      common  getgroups                       sys_getgroups
> +81      common  setgroups                       sys_setgroups
> +82      common  sendto                          sys_sendto
> +83      common  symlink                         sys_symlink
> +84      common  lstat                           sys_newlstat                    compat_sys_newlstat
> +85      common  readlink                        sys_readlink
> +86      common  uselib                          sys_ni_syscall
> +87      common  swapon                          sys_swapon
> +88      common  reboot                          sys_reboot
> +89      common  mmap2                           sys_mmap2
> +90      common  mmap                            sys_mmap
> +91      common  munmap                          sys_munmap
> +92      common  truncate                        sys_truncate                    compat_sys_truncate
> +93      common  ftruncate                       sys_ftruncate                   compat_sys_ftruncate
> +94      common  fchmod                          sys_fchmod
> +95      common  fchown                          sys_fchown
> +96      common  getpriority                     sys_getpriority
> +97      common  setpriority                     sys_setpriority
> +98      common  recv                            sys_recv
> +99      common  statfs                          sys_statfs                      compat_sys_statfs
> +100     common  fstatfs                         sys_fstatfs                     compat_sys_fstatfs
> +101     common  stat64                          sys_stat64
> +# 102 was socketcall
> +103     common  syslog                          sys_syslog
> +104     common  setitimer                       sys_setitimer                   compat_sys_setitimer
> +105     common  getitimer                       sys_getitimer                   compat_sys_getitimer
> +106     common  capget                          sys_capget
> +107     common  capset                          sys_capset
> +108     32      pread64                         parisc_pread64
> +108     64      pread64                         sys_pread64
> +109     32      pwrite64                        parisc_pwrite64
> +109     64      pwrite64                        sys_pwrite64
> +110     common  getcwd                          sys_getcwd
> +111     common  vhangup                         sys_vhangup
> +112     common  fstat64                         sys_fstat64
> +113     common  vfork                           sys_vfork_wrapper
> +114     common  wait4                           sys_wait4                       compat_sys_wait4
> +115     common  swapoff                         sys_swapoff
> +116     common  sysinfo                         sys_sysinfo                     compat_sys_sysinfo
> +117     common  shutdown                        sys_shutdown
> +118     common  fsync                           sys_fsync
> +119     common  madvise                         sys_madvise
> +120     common  clone                           sys_clone_wrapper
> +121     common  setdomainname                   sys_setdomainname
> +122     common  sendfile                        sys_sendfile                    compat_sys_sendfile
> +123     common  recvfrom                        sys_recvfrom
> +124     common  adjtimex                        sys_adjtimex                    compat_sys_adjtimex
> +125     common  mprotect                        sys_mprotect
> +126     common  sigprocmask                     sys_sigprocmask                 compat_sys_sigprocmask
> +# 127 was create_module
> +128     common  init_module                     sys_init_module
> +129     common  delete_module                   sys_delete_module
> +# 130 was get_kernel_syms
> +131     common  quotactl                        sys_quotactl
> +132     common  getpgid                         sys_getpgid
> +133     common  fchdir                          sys_fchdir
> +134     common  bdflush                         sys_bdflush
> +135     common  sysfs                           sys_sysfs
> +136     32      personality                     parisc_personality
> +136     64      personality                     sys_personality
> +# 137 was afs_syscall
> +138     common  setfsuid                        sys_setfsuid
> +139     common  setfsgid                        sys_setfsgid
> +140     common  _llseek                         sys_llseek
> +141     common  getdents                        sys_getdents                    compat_sys_getdents
> +142     common  _newselect                      sys_select                      compat_sys_select
> +143     common  flock                           sys_flock
> +144     common  msync                           sys_msync
> +145     common  readv                           sys_readv                       compat_sys_readv
> +146     common  writev                          sys_writev                      compat_sys_writev
> +147     common  getsid                          sys_getsid
> +148     common  fdatasync                       sys_fdatasync
> +149     common  _sysctl                         sys_sysctl                      compat_sys_sysctl
> +150     common  mlock                           sys_mlock
> +151     common  munlock                         sys_munlock
> +152     common  mlockall                        sys_mlockall
> +153     common  munlockall                      sys_munlockall
> +154     common  sched_setparam                  sys_sched_setparam
> +155     common  sched_getparam                  sys_sched_getparam
> +156     common  sched_setscheduler              sys_sched_setscheduler
> +157     common  sched_getscheduler              sys_sched_getscheduler
> +158     common  sched_yield                     sys_sched_yield
> +159     common  sched_get_priority_max          sys_sched_get_priority_max
> +160     common  sched_get_priority_min          sys_sched_get_priority_min
> +161     common  sched_rr_get_interval           sys_sched_rr_get_interval       compat_sys_sched_rr_get_interval
> +162     common  nanosleep                       sys_nanosleep                   compat_sys_nanosleep
> +163     common  mremap                          sys_mremap
> +164     common  setresuid                       sys_setresuid
> +165     common  getresuid                       sys_getresuid
> +166     common  sigaltstack                     sys_sigaltstack                 compat_sys_sigaltstack
> +# 167 was query_module
> +168     common  poll                            sys_poll
> +# 169 was nfsservctl
> +170     common  setresgid                       sys_setresgid
> +171     common  getresgid                       sys_getresgid
> +172     common  prctl                           sys_prctl
> +173     common  rt_sigreturn                    sys_rt_sigreturn_wrapper
> +174     common  rt_sigaction                    sys_rt_sigaction                compat_sys_rt_sigaction
> +175     common  rt_sigprocmask                  sys_rt_sigprocmask              compat_sys_rt_sigprocmask
> +176     common  rt_sigpending                   sys_rt_sigpending               compat_sys_rt_sigpending
> +177     common  rt_sigtimedwait                 sys_rt_sigtimedwait             compat_sys_rt_sigtimedwait
> +178     common  rt_sigqueueinfo                 sys_rt_sigqueueinfo             compat_sys_rt_sigqueueinfo
> +179     common  rt_sigsuspend                   sys_rt_sigsuspend               compat_sys_rt_sigsuspend
> +180     common  chown                           sys_chown
> +181     common  setsockopt                      sys_setsockopt                  compat_sys_setsockopt
> +182     common  getsockopt                      sys_getsockopt                  compat_sys_getsockopt
> +183     common  sendmsg                         sys_sendmsg                     compat_sys_sendmsg
> +184     common  recvmsg                         sys_recvmsg                     compat_sys_recvmsg
> +185     common  semop                           sys_semop
> +186     common  semget                          sys_semget
> +187     common  semctl                          sys_semctl                      compat_sys_semctl
> +188     common  msgsnd                          sys_msgsnd                      compat_sys_msgsnd
> +189     common  msgrcv                          sys_msgrcv                      compat_sys_msgrcv
> +190     common  msgget                          sys_msgget
> +191     common  msgctl                          sys_msgctl                      compat_sys_msgctl
> +192     common  shmat                           sys_shmat                       compat_sys_shmat
> +193     common  shmdt                           sys_shmdt
> +194     common  shmget                          sys_shmget
> +195     common  shmctl                          sys_shmctl                      compat_sys_shmctl
> +# 196 was getpmsg
> +# 197 was putpmsg
> +198     common  lstat64                         sys_lstat64
> +199     32      truncate64                      parisc_truncate64
> +199     64      truncate64                      sys_truncate64
> +200     32      ftruncate64                     parisc_ftruncate64
> +200     64      ftruncate64                     sys_ftruncate64
> +201     common  getdents64                      sys_getdents64
> +202     common  fcntl64                         sys_fcntl64                     compat_sys_fcntl64
> +# 203 was attrctl
> +# 204 was acl_get
> +# 205 was acl_set
> +206     common  gettid                          sys_gettid
> +207     32      readahead                       parisc_readahead
> +207     64      readahead                       sys_readahead
> +208     common  tkill                           sys_tkill
> +209     common  sendfile64                      sys_sendfile64                  compat_sys_sendfile64
> +210     common  futex                           sys_futex                       compat_sys_futex
> +211     common  sched_setaffinity               sys_sched_setaffinity           compat_sys_sched_setaffinity
> +212     common  sched_getaffinity               sys_sched_getaffinity           compat_sys_sched_getaffinity
> +# 213 was set_thread_area
> +# 214 was get_thread_area
> +215     common  io_setup                        sys_io_setup                    compat_sys_io_setup
> +216     common  io_destroy                      sys_io_destroy
> +217     common  io_getevents                    sys_io_getevents                compat_sys_io_getevents
> +218     common  io_submit                       sys_io_submit                   compat_sys_io_submit
> +219     common  io_cancel                       sys_io_cancel
> +# 220 was alloc_hugepages
> +# 221 was free_hugepages
> +222     common  exit_group                      sys_exit_group
> +223     common  lookup_dcookie                  sys_lookup_dcookie              compat_sys_lookup_dcookie
> +224     common  epoll_create                    sys_epoll_create
> +225     common  epoll_ctl                       sys_epoll_ctl
> +226     common  epoll_wait                      sys_epoll_wait
> +227     common  remap_file_pages                sys_remap_file_pages
> +228     common  semtimedop                      sys_semtimedop                  compat_sys_semtimedop
> +229     common  mq_open                         sys_mq_open                     compat_sys_mq_open
> +230     common  mq_unlink                       sys_mq_unlink
> +231     common  mq_timedsend                    sys_mq_timedsend                compat_sys_mq_timedsend
> +232     common  mq_timedreceive                 sys_mq_timedreceive             compat_sys_mq_timedreceive
> +233     common  mq_notify                       sys_mq_notify                   compat_sys_mq_notify
> +234     common  mq_getsetattr                   sys_mq_getsetattr               compat_sys_mq_getsetattr
> +235     common  waitid                          sys_waitid                      compat_sys_waitid
> +236     32      fadvise64_64                    parisc_fadvise64_64
> +236     64      fadvise64_64                    sys_fadvise64_64
> +237     common  set_tid_address                 sys_set_tid_address
> +238     common  setxattr                        sys_setxattr
> +239     common  lsetxattr                       sys_lsetxattr
> +240     common  fsetxattr                       sys_fsetxattr
> +241     common  getxattr                        sys_getxattr
> +242     common  lgetxattr                       sys_lgetxattr
> +243     common  fgetxattr                       sys_fgetxattr
> +244     common  listxattr                       sys_listxattr
> +245     common  llistxattr                      sys_llistxattr
> +246     common  flistxattr                      sys_flistxattr
> +247     common  removexattr                     sys_removexattr
> +248     common  lremovexattr                    sys_lremovexattr
> +249     common  fremovexattr                    sys_fremovexattr
> +250     common  timer_create                    sys_timer_create                compat_sys_timer_create
> +251     common  timer_settime                   sys_timer_settime               compat_sys_timer_settime
> +252     common  timer_gettime                   sys_timer_gettime               compat_sys_timer_gettime
> +253     common  timer_getoverrun                sys_timer_getoverrun
> +254     common  timer_delete                    sys_timer_delete
> +255     common  clock_settime                   sys_clock_settime               compat_sys_clock_settime
> +256     common  clock_gettime                   sys_clock_gettime               compat_sys_clock_gettime
> +257     common  clock_getres                    sys_clock_getres                compat_sys_clock_getres
> +258     common  clock_nanosleep                 sys_clock_nanosleep             compat_sys_clock_nanosleep
> +259     common  tgkill                          sys_tgkill
> +260     common  mbind                           sys_mbind                       compat_sys_mbind
> +261     common  get_mempolicy                   sys_get_mempolicy               compat_sys_get_mempolicy
> +262     common  set_mempolicy                   sys_set_mempolicy               compat_sys_set_mempolicy
> +# 263 was vserver
> +264     common  add_key                         sys_add_key
> +265     common  request_key                     sys_request_key
> +266     common  keyctl                          sys_keyctl                      compat_sys_keyctl
> +267     common  ioprio_set                      sys_ioprio_set
> +268     common  ioprio_get                      sys_ioprio_get
> +269     common  inotify_init                    sys_inotify_init
> +270     common  inotify_add_watch               sys_inotify_add_watch
> +271     common  inotify_rm_watch                sys_inotify_rm_watch
> +272     common  migrate_pages                   sys_migrate_pages
> +273     common  pselect6                        sys_pselect6                    compat_sys_pselect6
> +274     common  ppoll                           sys_ppoll                       compat_sys_ppoll
> +275     common  openat                          sys_openat                      compat_sys_openat
> +276     common  mkdirat                         sys_mkdirat
> +277     common  mknodat                         sys_mknodat
> +278     common  fchownat                        sys_fchownat
> +279     common  futimesat                       sys_futimesat                   compat_sys_futimesat
> +280     common  fstatat64                       sys_fstatat64
> +281     common  unlinkat                        sys_unlinkat
> +282     common  renameat                        sys_renameat
> +283     common  linkat                          sys_linkat
> +284     common  symlinkat                       sys_symlinkat
> +285     common  readlinkat                      sys_readlinkat
> +286     common  fchmodat                        sys_fchmodat
> +287     common  faccessat                       sys_faccessat
> +288     common  unshare                         sys_unshare
> +289     common  set_robust_list                 sys_set_robust_list             compat_sys_set_robust_list
> +290     common  get_robust_list                 sys_get_robust_list             compat_sys_get_robust_list
> +291     common  splice                          sys_splice
> +292     32      sync_file_range                 parisc_sync_file_range
> +292     64      sync_file_range                 sys_sync_file_range
> +293     common  tee                             sys_tee
> +294     common  vmsplice                        sys_vmsplice                    compat_sys_vmsplice
> +295     common  move_pages                      sys_move_pages                  compat_sys_move_pages
> +296     common  getcpu                          sys_getcpu
> +297     common  epoll_pwait                     sys_epoll_pwait                 compat_sys_epoll_pwait
> +298     common  statfs64                        sys_statfs64                    compat_sys_statfs64
> +299     common  fstatfs64                       sys_fstatfs64                   compat_sys_fstatfs64
> +300     common  kexec_load                      sys_kexec_load                  compat_sys_kexec_load
> +301     common  utimensat                       sys_utimensat                   compat_sys_utimensat
> +302     common  signalfd                        sys_signalfd                    compat_sys_signalfd
> +# 303 was timerfd
> +304     common  eventfd                         sys_eventfd
> +305     32      fallocate                       parisc_fallocate
> +305     64      fallocate                       sys_fallocate
> +306     common  timerfd_create                  sys_timerfd_create
> +307     common  timerfd_settime                 sys_timerfd_settime             compat_sys_timerfd_settime
> +308     common  timerfd_gettime                 sys_timerfd_gettime             compat_sys_timerfd_gettime
> +309     common  signalfd4                       sys_signalfd4                   compat_sys_signalfd4
> +310     common  eventfd2                        sys_eventfd2
> +311     common  epoll_create1                   sys_epoll_create1
> +312     common  dup3                            sys_dup3
> +313     common  pipe2                           sys_pipe2
> +314     common  inotify_init1                   sys_inotify_init1
> +315     common  preadv                          sys_preadv                      compat_sys_preadv
> +316     common  pwritev                         sys_pwritev                     compat_sys_pwritev
> +317     common  rt_tgsigqueueinfo               sys_rt_tgsigqueueinfo           compat_sys_rt_tgsigqueueinfo
> +318     common  perf_event_open                 sys_perf_event_open
> +319     common  recvmmsg                        sys_recvmmsg                    compat_sys_recvmmsg
> +320     common  accept4                         sys_accept4
> +321     common  prlimit64                       sys_prlimit64
> +322     common  fanotify_init                   sys_fanotify_init
> +323     common  fanotify_mark                   sys_fanotify_mark               sys32_fanotify_mark
> +324     common  clock_adjtime                   sys_clock_adjtime               compat_sys_clock_adjtime
> +325     common  name_to_handle_at               sys_name_to_handle_at
> +326     common  open_by_handle_at               sys_open_by_handle_at           compat_sys_open_by_handle_at
> +327     common  syncfs                          sys_syncfs
> +328     common  setns                           sys_setns
> +329     common  sendmmsg                        sys_sendmmsg                    compat_sys_sendmmsg
> +330     common  process_vm_readv                sys_process_vm_readv            compat_sys_process_vm_readv
> +331     common  process_vm_writev               sys_process_vm_writev           compat_sys_process_vm_writev
> +332     common  kcmp                            sys_kcmp
> +333     common  finit_module                    sys_finit_module
> +334     common  sched_setattr                   sys_sched_setattr
> +335     common  sched_getattr                   sys_sched_getattr
> +336     common  utimes                          sys_utimes                      compat_sys_utimes
> +337     common  renameat2                       sys_renameat2
> +338     common  seccomp                         sys_seccomp
> +339     common  getrandom                       sys_getrandom
> +340     common  memfd_create                    sys_memfd_create
> +341     common  bpf                             sys_bpf
> +342     common  execveat                        sys_execveat                    compat_sys_execveat
> +343     common  membarrier                      sys_membarrier
> +344     common  userfaultfd                     sys_userfaultfd
> +345     common  mlock2                          sys_mlock2
> +346     common  copy_file_range                 sys_copy_file_range
> +347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
> +348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
> +349     common  statx                           sys_statx
> +350    common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> \ No newline at end of file
> diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh b/arch/parisc/kernel/syscalls/syscallhdr.sh
> new file mode 100644
> index 0000000..607d4ca
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
> @@ -0,0 +1,35 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0
> +
> +in="$1"
> +out="$2"
> +my_abis=`echo "($3)" | tr ',' '|'`
> +prefix="$4"
> +offset="$5"
> +
> +fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
> +    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
> +    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
> +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> +    echo "#ifndef ${fileguard}"
> +    echo "#define ${fileguard}"
> +    echo ""
> +
> +    nxt=0
> +    while read nr abi name entry compat ; do
> +       if [ -z "$offset" ]; then
> +           echo -e "#define __NR_${prefix}${name}\t$nr"
> +       else
> +           echo -e "#define __NR_${prefix}${name}\t($offset + $nr)"
> +       fi
> +       nxt=$nr
> +       let nxt=nxt+1
> +    done
> +
> +    echo ""
> +    echo "#ifdef __KERNEL__"
> +    echo -e "#define __NR_syscalls\t$nxt"
> +    echo "#endif"
> +    echo ""
> +    echo "#endif /* ${fileguard} */"
> +) > "$out"
> diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh b/arch/parisc/kernel/syscalls/syscalltbl.sh
> new file mode 100644
> index 0000000..04abde7
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/syscalltbl.sh
> @@ -0,0 +1,46 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0
> +
> +in="$1"
> +out="$2"
> +my_abis=`echo "($3)" | tr ',' '|'`
> +offset="$4"
> +
> +emit() {
> +    nxt="$1"
> +    if [ -z "$offset" ]; then
> +       nr="$2"
> +    else
> +       nr="$2"
> +       nr=$((nr+offset))
> +    fi
> +    entry="$3"
> +
> +    while [ $nxt -lt $nr ]; do
> +       echo "__SYSCALL($nxt, sys_ni_syscall, )"
> +        let nxt=nxt+1
> +    done
> +    echo "__SYSCALL($nxt, $entry, )"
> +}
> +
> +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> +    if [ -z "$offset" ]; then
> +       nxt=0
> +    else
> +       nxt=$offset
> +    fi
> +
> +    my_abi="$(cut -d'|' -f2 <<< $my_abis)"
> +    while read nr abi name entry compat ; do
> +       if [ $my_abi = "compat" ]; then
> +           if [ -z "$compat" ]; then
> +               emit $nxt $nr $entry
> +           else
> +               emit $nxt $nr $compat
> +           fi
> +       else
> +           emit $nxt $nr $entry
> +       fi
> +        let nxt=nxt+1
> +    done
> +) > "$out"

Appreciate if someone can review this script!

Firoz

> --
> 1.9.1
>


From - Thu Nov 08 21:42:11 2018
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From: "Kirill A. Shutemov" <kirill@shutemov.name>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 1/2] treewide: remove unused address argument from
 pte_alloc functions
Date: Fri, 12 Oct 2018 14:09:06 +0300
Lines: 67
Approved: news@gmane.org
Message-ID: <20181012110906.fpfttp4nhvsr2ps7@kshutemo-mobl1>
References: <20181012013756.11285-1-joel@joelfernandes.org>
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User-Agent: NeoMutt/20180716
Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Peter Zijlstra <peterz@infradead.org>,
 Catalin Marinas <catalin.marinas@arm.com>,
 Dave Hansen <dave.hansen@linux.intel.com>, Will Deacon <will.deacon@arm.com>,
 Michal Hocko <mhocko@kernel.org>, linux-mm@kvack.org, lokeshgidra@google.com,
 sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org,
 elfring@users.sourceforge.net, Jonas Bonn <jonas@southpole.se>,
 linux-s390@vger.kernel.org, dancol@google.com,
 Yoshinori Sato <ysato@users.sourceforge.jp>, linux-xtensa@linux-xtensa.org,
 linux-hexagon@vger.kernel.org, Helge Deller <deller@gmx.de>,
 "maintainer:X86 ARCHITECTURE \(32-BIT AND 64-BIT\)" <x86@kernel.org>,
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 kasan-dev@googlegroups.com, kvmarm@lists.cs.columbia.edu,
 Ingo Molnar <mingo@redhat.com
To: "Joel Fernandes (Google)" <joel@joelfernandes.org>
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On Thu, Oct 11, 2018 at 06:37:55PM -0700, Joel Fernandes (Google) wrote:
> diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h
> index 12fe700632f4..4399d712f6db 100644
> --- a/arch/m68k/include/asm/mcf_pgalloc.h
> +++ b/arch/m68k/include/asm/mcf_pgalloc.h
> @@ -12,8 +12,7 @@ extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
>  
>  extern const char bad_pmd_string[];
>  
> -extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -	unsigned long address)
> +extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>  {
>  	unsigned long page = __get_free_page(GFP_DMA);
>  
> @@ -32,8 +31,6 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address)
>  #define pmd_alloc_one_fast(mm, address) ({ BUG(); ((pmd_t *)1); })
>  #define pmd_alloc_one(mm, address)      ({ BUG(); ((pmd_t *)2); })
>  
> -#define pte_alloc_one_fast(mm, addr) pte_alloc_one(mm, addr)
> -

I believe this was one done manually, right?
Please explicitely state everthing you did on not of sematic patch

...

> diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
> index 7c89390c0c13..f4cc9ffc449e 100644
> --- a/arch/microblaze/include/asm/pgalloc.h
> +++ b/arch/microblaze/include/asm/pgalloc.h
> @@ -108,10 +108,9 @@ static inline void free_pgd_slow(pgd_t *pgd)
>  #define pmd_alloc_one_fast(mm, address)	({ BUG(); ((pmd_t *)1); })
>  #define pmd_alloc_one(mm, address)	({ BUG(); ((pmd_t *)2); })
>  
> -extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
> +extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
>  
> -static inline struct page *pte_alloc_one(struct mm_struct *mm,
> -		unsigned long address)
> +static inline struct page *pte_alloc_one(struct mm_struct *mm)
>  {
>  	struct page *ptepage;
>  
> @@ -132,20 +131,6 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
>  	return ptepage;
>  }
>  
> -static inline pte_t *pte_alloc_one_fast(struct mm_struct *mm,
> -		unsigned long address)
> -{
> -	unsigned long *ret;
> -
> -	ret = pte_quicklist;
> -	if (ret != NULL) {
> -		pte_quicklist = (unsigned long *)(*ret);
> -		ret[0] = 0;
> -		pgtable_cache_size--;
> -	}
> -	return (pte_t *)ret;
> -}
> -

Ditto.

-- 
 Kirill A. Shutemov

From - Thu Nov 08 21:42:11 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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On Thu, Oct 11, 2018 at 06:37:56PM -0700, Joel Fernandes (Google) wrote:
> Android needs to mremap large regions of memory during memory management
> related operations. The mremap system call can be really slow if THP is
> not enabled. The bottleneck is move_page_tables, which is copying each
> pte at a time, and can be really slow across a large map. Turning on THP
> may not be a viable option, and is not for us. This patch speeds up the
> performance for non-THP system by copying at the PMD level when possible.
> 
> The speed up is three orders of magnitude. On a 1GB mremap, the mremap
> completion times drops from 160-250 millesconds to 380-400 microseconds.
> 
> Before:
> Total mremap time for 1GB data: 242321014 nanoseconds.
> Total mremap time for 1GB data: 196842467 nanoseconds.
> Total mremap time for 1GB data: 167051162 nanoseconds.
> 
> After:
> Total mremap time for 1GB data: 385781 nanoseconds.
> Total mremap time for 1GB data: 388959 nanoseconds.
> Total mremap time for 1GB data: 402813 nanoseconds.
> 
> Incase THP is enabled, the optimization is skipped. I also flush the
> tlb every time we do this optimization since I couldn't find a way to
> determine if the low-level PTEs are dirty. It is seen that the cost of
> doing so is not much compared the improvement, on both x86-64 and arm64.

I looked into the code more and noticed move_pte() helper called from
move_ptes(). It changes PTE entry to suite new address.

It is only defined in non-trivial way on Sparc. I don't know much about
Sparc and it's hard for me to say if the optimization will break anything
there.

I think it worth to disable the optimization if __HAVE_ARCH_MOVE_PTE is
defined. Or make architectures state explicitely that the optimization is
safe.

> @@ -239,7 +287,21 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
>  			split_huge_pmd(vma, old_pmd, old_addr);
>  			if (pmd_trans_unstable(old_pmd))
>  				continue;
> +		} else if (extent == PMD_SIZE) {

Hm. What guarantees that new_addr is PMD_SIZE-aligned?
It's not obvious to me.

-- 
 Kirill A. Shutemov

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On Fri, Oct 12, 2018 at 02:30:56PM +0300, Kirill A. Shutemov wrote:
> On Thu, Oct 11, 2018 at 06:37:56PM -0700, Joel Fernandes (Google) wrote:
> > @@ -239,7 +287,21 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
> >  			split_huge_pmd(vma, old_pmd, old_addr);
> >  			if (pmd_trans_unstable(old_pmd))
> >  				continue;
> > +		} else if (extent == PMD_SIZE) {
> 
> Hm. What guarantees that new_addr is PMD_SIZE-aligned?
> It's not obvious to me.

Ignore this :)

-- 
 Kirill A. Shutemov

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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 3/6] parisc: add system call table generation support
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On Fri, Oct 12, 2018 at 11:45 AM Firoz Khan <firoz.khan@linaro.org> wrote:

> diff --git a/arch/parisc/kernel/syscalls/Makefile b/arch/parisc/kernel/syscalls/Makefile
> new file mode 100644
> index 0000000..a0af5a3
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/Makefile

> +syshdr_abi_unistd_32 := common,32
> +syshdr_offset_unistd_32 := __NR_Linux
> +$(uapi)/unistd_32.h: $(syscall) $(syshdr)
> +       $(call if_changed,syshdr)
> +
> +syshdr_abi_unistd_64 := common,64
> +syshdr_offset_unistd_64 := __NR_Linux
> +$(uapi)/unistd_64.h: $(syscall) $(syshdr)
> +       $(call if_changed,syshdr)

The __NR_Linux seems misplaced here, don't we need that only for ia64
and mips?

> +systbl_abi_syscall_table_32 := common,32
> +$(kapi)/syscall_table_32.h: $(syscall) $(systbl)
> +       $(call if_changed,systbl)
> +
> +systbl_abi_syscall_table_64 := common,64
> +$(kapi)/syscall_table_64.h: $(syscall) $(systbl)
> +       $(call if_changed,systbl)

Have you considered making the 'common' part implied?
I expected to see it done that way, although listing it explicitly
doesn't seem harmful either.

> +systbl_abi_syscall_table_c32 := common,compat,32
> +$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
> +       $(call if_changed,systbl)

The way you specify 'compat' as one item in a list of
ABIs seems rather odd, I'd suggest keeping that a separate
flag.

I think you can also pass arguments to 'if_changed', rather than
setting a global variable to control it.
arch/powerpc/boot/Makefile has some examples of that.
It should be possible to do this like

$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
       $(call if_changed,systbl,common|32,compat)

Passing "common|32" as the list of ABIs in the first argument,
and 'compat' as the second argument.

> diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> new file mode 100644
> index 0000000..7c9f268
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/syscall.tbl
...
> +346     common  copy_file_range                 sys_copy_file_range
> +347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
> +348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
> +349     common  statx                           sys_statx
> +350    common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> \ No newline at end of file

Here is the missing newline again. This should never happen if your text
editor is configured correctly.

> diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh b/arch/parisc/kernel/syscalls/syscallhdr.sh
> new file mode 100644
> index 0000000..607d4ca
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
> @@ -0,0 +1,35 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0
> +
> +in="$1"
> +out="$2"
> +my_abis=`echo "($3)" | tr ',' '|'`
> +prefix="$4"
> +offset="$5"
> +
> +fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
> +    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
> +    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`

Maybe use ${ARCH} instead of PARISC here to keep it the same
across architectures?

> +    my_abi="$(cut -d'|' -f2 <<< $my_abis)"
> +    while read nr abi name entry compat ; do
> +       if [ $my_abi = "compat" ]; then

This check seems really fragile, but if you add another argument to the
script instead of listing "compat" as the second option in the
list of ABIs, I think it's fine.

        ARnd


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From: Arnd Bergmann <arnd@arndb.de>
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Subject: Re: [PATCH v4 5/6] parisc: wire up rseq system call
Date: Fri, 12 Oct 2018 13:52:15 +0200
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Cc: Parisc List <linux-parisc@vger.kernel.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
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To: Firoz Khan <firoz.khan@linaro.org>
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On Fri, Oct 12, 2018 at 12:16 PM Firoz Khan <firoz.khan@linaro.org> wrote:
>
> Hi Arnd,
>
> On Fri, 12 Oct 2018 at 15:26, Arnd Bergmann <arnd@arndb.de> wrote:
> >
> > On Fri, Oct 12, 2018 at 11:45 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > >
> > > Wire up rseq system call requires an architecture specific
> > > implementation as it not present now.
> > >
> > > Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> >
> > Didn't we conclude that this should be skipped?
>
> Helge told "I prefer to keep the warning for rseq for now.
> It reminds me that we still may want the rseq syscall.
> If the warning is a problem, you may simply add the __IGNORE_rseq define."
>
> I chose this option; I feel it looks clean
> "# rseq requires an architecture specific implementation" in syscall.tbl
> hopefully remind him to add rseq syscall implementation in this architecture.
>

But he said he wants the warning instead.

     Arnd


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From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 3/6] parisc: add system call table generation support
Date: Fri, 12 Oct 2018 14:07:47 +0200
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Cc: linux-parisc@vger.kernel.org,
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        Thomas Gleixner <tglx@linutronix.de>,
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To: Firoz Khan <firoz.khan@linaro.org>
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Firoz Khan wrote:

> diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh
> b/arch/parisc/kernel/syscalls/syscallhdr.sh
> new file mode 100644
> index 0000000..607d4ca
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
> @@ -0,0 +1,35 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0
> +
> +in="$1"
> +out="$2"
> +my_abis=`echo "($3)" | tr ',' '|'`

Any reason not to use $() instead of backticks?

> +prefix="$4"
> +offset="$5"
> +
> +fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
> +    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
> +    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
> +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> +    echo "#ifndef ${fileguard}"
> +    echo "#define ${fileguard}"
> +    echo ""
> +
> +    nxt=0
> +    while read nr abi name entry compat ; do
> +	if [ -z "$offset" ]; then
> +	    echo -e "#define __NR_${prefix}${name}\t$nr"

This mixed indentation with both tabs and spaces is a bit messy.

> +	else
> +	    echo -e "#define __NR_${prefix}${name}\t($offset + $nr)"
> +	fi
> +	nxt=$nr
> +	let nxt=nxt+1

Why do you use let here when you do $(()) calculations at other places?

> +    done
> +
> +    echo ""
> +    echo "#ifdef __KERNEL__"
> +    echo -e "#define __NR_syscalls\t$nxt"
> +    echo "#endif"
> +    echo ""
> +    echo "#endif /* ${fileguard} */"
> +) > "$out"
> diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh
> b/arch/parisc/kernel/syscalls/syscalltbl.sh
> new file mode 100644
> index 0000000..04abde7
> --- /dev/null
> +++ b/arch/parisc/kernel/syscalls/syscalltbl.sh
> @@ -0,0 +1,46 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0
> +
> +in="$1"
> +out="$2"
> +my_abis=`echo "($3)" | tr ',' '|'`
> +offset="$4"
> +
> +emit() {
> +    nxt="$1"
> +    if [ -z "$offset" ]; then
> +	nr="$2"
> +    else
> +	nr="$2"
> +	nr=$((nr+offset))

This could be one line, no? Or just set offset to 0 if it is empty and 
avoid that if alltogether.

> +    fi
> +    entry="$3"
> +
> +    while [ $nxt -lt $nr ]; do
> +	echo "__SYSCALL($nxt, sys_ni_syscall, )"
> +        let nxt=nxt+1
> +    done
> +    echo "__SYSCALL($nxt, $entry, )"
> +}
> +
> +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> +    if [ -z "$offset" ]; then
> +	nxt=0
> +    else
> +	nxt=$offset
> +    fi

Another argument for offset=0 as default.

> +
> +    my_abi="$(cut -d'|' -f2 <<< $my_abis)"

"<<<" is a bash extension and will not work with /bin/sh.

> +    while read nr abi name entry compat ; do
> +	if [ $my_abi = "compat" ]; then
> +	    if [ -z "$compat" ]; then
> +		emit $nxt $nr $entry
> +	    else
> +		emit $nxt $nr $compat
> +	    fi
> +	else
> +	    emit $nxt $nr $entry
> +	fi

I would go for a local variable being set to $compat or $entry and 
calling emit at only one place. And there should be only one if with 2 
expressions, no need for 3 branches.

> +        let nxt=nxt+1

Inconsistent indentation.

> +    done
> +) > "$out"

Eike


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Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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On Fri, Oct 12, 2018 at 02:30:56PM +0300, Kirill A. Shutemov wrote:
> On Thu, Oct 11, 2018 at 06:37:56PM -0700, Joel Fernandes (Google) wrote:
> > Android needs to mremap large regions of memory during memory management
> > related operations. The mremap system call can be really slow if THP is
> > not enabled. The bottleneck is move_page_tables, which is copying each
> > pte at a time, and can be really slow across a large map. Turning on THP
> > may not be a viable option, and is not for us. This patch speeds up the
> > performance for non-THP system by copying at the PMD level when possible.
> > 
> > The speed up is three orders of magnitude. On a 1GB mremap, the mremap
> > completion times drops from 160-250 millesconds to 380-400 microseconds.
> > 
> > Before:
> > Total mremap time for 1GB data: 242321014 nanoseconds.
> > Total mremap time for 1GB data: 196842467 nanoseconds.
> > Total mremap time for 1GB data: 167051162 nanoseconds.
> > 
> > After:
> > Total mremap time for 1GB data: 385781 nanoseconds.
> > Total mremap time for 1GB data: 388959 nanoseconds.
> > Total mremap time for 1GB data: 402813 nanoseconds.
> > 
> > Incase THP is enabled, the optimization is skipped. I also flush the
> > tlb every time we do this optimization since I couldn't find a way to
> > determine if the low-level PTEs are dirty. It is seen that the cost of
> > doing so is not much compared the improvement, on both x86-64 and arm64.
> 
> I looked into the code more and noticed move_pte() helper called from
> move_ptes(). It changes PTE entry to suite new address.
> 
> It is only defined in non-trivial way on Sparc. I don't know much about
> Sparc and it's hard for me to say if the optimization will break anything
> there.

Sparc's move_pte seems to be flushing the D-cache to prevent aliasing. It is
not modifying the PTE itself AFAICS:

#ifdef DCACHE_ALIASING_POSSIBLE
#define __HAVE_ARCH_MOVE_PTE
#define move_pte(pte, prot, old_addr, new_addr)                         \
({                                                                      \
        pte_t newpte = (pte);                                           \
        if (tlb_type != hypervisor && pte_present(pte)) {               \
                unsigned long this_pfn = pte_pfn(pte);                  \
                                                                        \
                if (pfn_valid(this_pfn) &&                              \
                    (((old_addr) ^ (new_addr)) & (1 << 13)))            \
                        flush_dcache_page_all(current->mm,              \
                                              pfn_to_page(this_pfn));   \
        }                                                               \
        newpte;                                                         \
})
#endif

If its an issue, then how do transparent huge pages work on Sparc?  I don't
see the huge page code (move_huge_pages) during mremap doing anything special
for Sparc architecture when moving PMDs..

Also, do we not flush the caches from any path when we munmap address space?
We do call do_munmap on the old mapping from mremap after moving to the new one.

thanks,

 - Joel

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Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
Date: Fri, 12 Oct 2018 16:19:46 +0300
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On Fri, Oct 12, 2018 at 05:50:46AM -0700, Joel Fernandes wrote:
> On Fri, Oct 12, 2018 at 02:30:56PM +0300, Kirill A. Shutemov wrote:
> > On Thu, Oct 11, 2018 at 06:37:56PM -0700, Joel Fernandes (Google) wrote:
> > > Android needs to mremap large regions of memory during memory management
> > > related operations. The mremap system call can be really slow if THP is
> > > not enabled. The bottleneck is move_page_tables, which is copying each
> > > pte at a time, and can be really slow across a large map. Turning on THP
> > > may not be a viable option, and is not for us. This patch speeds up the
> > > performance for non-THP system by copying at the PMD level when possible.
> > > 
> > > The speed up is three orders of magnitude. On a 1GB mremap, the mremap
> > > completion times drops from 160-250 millesconds to 380-400 microseconds.
> > > 
> > > Before:
> > > Total mremap time for 1GB data: 242321014 nanoseconds.
> > > Total mremap time for 1GB data: 196842467 nanoseconds.
> > > Total mremap time for 1GB data: 167051162 nanoseconds.
> > > 
> > > After:
> > > Total mremap time for 1GB data: 385781 nanoseconds.
> > > Total mremap time for 1GB data: 388959 nanoseconds.
> > > Total mremap time for 1GB data: 402813 nanoseconds.
> > > 
> > > Incase THP is enabled, the optimization is skipped. I also flush the
> > > tlb every time we do this optimization since I couldn't find a way to
> > > determine if the low-level PTEs are dirty. It is seen that the cost of
> > > doing so is not much compared the improvement, on both x86-64 and arm64.
> > 
> > I looked into the code more and noticed move_pte() helper called from
> > move_ptes(). It changes PTE entry to suite new address.
> > 
> > It is only defined in non-trivial way on Sparc. I don't know much about
> > Sparc and it's hard for me to say if the optimization will break anything
> > there.
> 
> Sparc's move_pte seems to be flushing the D-cache to prevent aliasing. It is
> not modifying the PTE itself AFAICS:
> 
> #ifdef DCACHE_ALIASING_POSSIBLE
> #define __HAVE_ARCH_MOVE_PTE
> #define move_pte(pte, prot, old_addr, new_addr)                         \
> ({                                                                      \
>         pte_t newpte = (pte);                                           \
>         if (tlb_type != hypervisor && pte_present(pte)) {               \
>                 unsigned long this_pfn = pte_pfn(pte);                  \
>                                                                         \
>                 if (pfn_valid(this_pfn) &&                              \
>                     (((old_addr) ^ (new_addr)) & (1 << 13)))            \
>                         flush_dcache_page_all(current->mm,              \
>                                               pfn_to_page(this_pfn));   \
>         }                                                               \
>         newpte;                                                         \
> })
> #endif
> 
> If its an issue, then how do transparent huge pages work on Sparc?  I don't
> see the huge page code (move_huge_pages) during mremap doing anything special
> for Sparc architecture when moving PMDs..

My *guess* is that it will work fine on Sparc as it apprarently it only
cares about change in bit 13 of virtual address. It will never happen for
huge pages or when PTE page tables move.

But I just realized that the problem is bigger: since we pass new_addr to
the set_pte_at() we would need to audit all implementations that they are
safe with just moving PTE page table.

I would rather go with per-architecture enabling. It's much safer.

> Also, do we not flush the caches from any path when we munmap address space?
> We do call do_munmap on the old mapping from mremap after moving to the new one.

Are you sure about that? It can be hided deeper in architecture-specific
code.

-- 
 Kirill A. Shutemov

From - Thu Nov 08 21:42:12 2018
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
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Cc: linux-parisc@vger.kernel.org,
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Hi Arnd, Rolf,

Thanks for the comments. It will help me to fine tune my scripts!

On Fri, 12 Oct 2018 at 17:37, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
>
> Firoz Khan wrote:
>
> > diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh
> > b/arch/parisc/kernel/syscalls/syscallhdr.sh
> > new file mode 100644
> > index 0000000..607d4ca
> > --- /dev/null
> > +++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
> > @@ -0,0 +1,35 @@
> > +#!/bin/sh
> > +# SPDX-License-Identifier: GPL-2.0
> > +
> > +in="$1"
> > +out="$2"
> > +my_abis=`echo "($3)" | tr ',' '|'`
>
> Any reason not to use $() instead of backticks?
>
> > +prefix="$4"
> > +offset="$5"
> > +
> > +fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
> > +    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
> > +    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
> > +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> > +    echo "#ifndef ${fileguard}"
> > +    echo "#define ${fileguard}"
> > +    echo ""
> > +
> > +    nxt=0
> > +    while read nr abi name entry compat ; do
> > +     if [ -z "$offset" ]; then
> > +         echo -e "#define __NR_${prefix}${name}\t$nr"
>
> This mixed indentation with both tabs and spaces is a bit messy.
>
> > +     else
> > +         echo -e "#define __NR_${prefix}${name}\t($offset + $nr)"
> > +     fi
> > +     nxt=$nr
> > +     let nxt=nxt+1
>
> Why do you use let here when you do $(()) calculations at other places?
>
> > +    done
> > +
> > +    echo ""
> > +    echo "#ifdef __KERNEL__"
> > +    echo -e "#define __NR_syscalls\t$nxt"
> > +    echo "#endif"
> > +    echo ""
> > +    echo "#endif /* ${fileguard} */"
> > +) > "$out"
> > diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh
> > b/arch/parisc/kernel/syscalls/syscalltbl.sh
> > new file mode 100644
> > index 0000000..04abde7
> > --- /dev/null
> > +++ b/arch/parisc/kernel/syscalls/syscalltbl.sh
> > @@ -0,0 +1,46 @@
> > +#!/bin/sh
> > +# SPDX-License-Identifier: GPL-2.0
> > +
> > +in="$1"
> > +out="$2"
> > +my_abis=`echo "($3)" | tr ',' '|'`
> > +offset="$4"
> > +
> > +emit() {
> > +    nxt="$1"
> > +    if [ -z "$offset" ]; then
> > +     nr="$2"
> > +    else
> > +     nr="$2"
> > +     nr=$((nr+offset))
>
> This could be one line, no? Or just set offset to 0 if it is empty and
> avoid that if alltogether.
>
> > +    fi
> > +    entry="$3"
> > +
> > +    while [ $nxt -lt $nr ]; do
> > +     echo "__SYSCALL($nxt, sys_ni_syscall, )"
> > +        let nxt=nxt+1
> > +    done
> > +    echo "__SYSCALL($nxt, $entry, )"
> > +}
> > +
> > +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> > +    if [ -z "$offset" ]; then
> > +     nxt=0
> > +    else
> > +     nxt=$offset
> > +    fi
>
> Another argument for offset=0 as default.
>
> > +
> > +    my_abi="$(cut -d'|' -f2 <<< $my_abis)"

Here is the logic of identifying the generated script is for compat interface
or not. So systbl_abi_syscall_table_c32 := common,compat,32 in Makefile
will parse the script and check the second string whether this is
"compat" or not.

Other ways are:
1. add an extra flag, that will again add the complexity
2. check if [ ${out: -5} = "c32.h" ], this looks weird

Is there any better way to do the same?

>
> "<<<" is a bash extension and will not work with /bin/sh.
>
> > +    while read nr abi name entry compat ; do
> > +     if [ $my_abi = "compat" ]; then
> > +         if [ -z "$compat" ]; then
> > +             emit $nxt $nr $entry
> > +         else
> > +             emit $nxt $nr $compat
> > +         fi
> > +     else
> > +         emit $nxt $nr $entry
> > +     fi
>
> I would go for a local variable being set to $compat or $entry and
> calling emit at only one place. And there should be only one if with 2
> expressions, no need for 3 branches.
>
> > +        let nxt=nxt+1
>
> Inconsistent indentation.
>
> > +    done
> > +) > "$out"

I'll address rest of the comment soon.

Helge, I can update this patches asap with their comments and we can
perform the
boot test with next version. And thanks for your great support!

Firoz

>
> Eike


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Subject: Re: [PATCH v2 1/2] treewide: remove unused address argument from
 pte_alloc functions
Date: Fri, 12 Oct 2018 14:56:19 +0100
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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To: "Joel Fernandes (Google)" <joel@joelfernandes.org>,
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On 10/12/18 2:37 AM, Joel Fernandes (Google) wrote:
> This series speeds up mremap(2) syscall by copying page tables at the
> PMD level even for non-THP systems. There is concern that the extra
> 'address' argument that mremap passes to pte_alloc may do something
> subtle architecture related in the future, that makes the scheme not
> work.  Also we find that there is no point in passing the 'address' to
> pte_alloc since its unused.
>
> This patch therefore removes this argument tree-wide resulting in a nice
> negative diff as well. Also ensuring along the way that the architecture
> does not do anything funky with 'address' argument that goes unnoticed.
>
> Build and boot tested on x86-64. Build tested on arm64.
>
> The changes were obtained by applying the following Coccinelle script.
> The pte_fragment_alloc was manually fixed up since it was only 2
> occurences and could not be easily generalized (and thanks Julia for
> answering all my silly and not-silly Coccinelle questions!).
>
> // Options: --include-headers --no-includes
> // Note: I split the 'identifier fn' line, so if you are manually
> // running it, please unsplit it so it runs for you.
>
> virtual patch
>
> @pte_alloc_func_def depends on patch exists@
> identifier E2;
> identifier fn =~
> "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
> type T2;
> @@
>
>   fn(...
> - , T2 E2
>   )
>   { ... }
>
> @pte_alloc_func_proto depends on patch exists@
> identifier E1, E2, E4;
> type T1, T2, T3, T4;
> identifier fn =~
> "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
> @@
>
> (
> - T3 fn(T1 E1, T2 E2);
> + T3 fn(T1 E1);
> |
> - T3 fn(T1 E1, T2 E2, T4 E4);
> + T3 fn(T1 E1, T2 E2);
> )
>
> @pte_alloc_func_call depends on patch exists@
> expression E2;
> identifier fn =~
> "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
> @@
>
>   fn(...
> -,  E2
>   )
>
> @pte_alloc_macro depends on patch exists@
> identifier fn =~
> "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
> identifier a, b, c;
> expression e;
> position p;
> @@
>
> (
> - #define fn(a, b, c)@p e
> + #define fn(a, b) e
> |
> - #define fn(a, b)@p e
> + #define fn(a) e
> )
>
> Suggested-by: Kirill A. Shutemov <kirill@shutemov.name>
> Cc: Michal Hocko <mhocko@kernel.org>
> Cc: Julia Lawall <Julia.Lawall@lip6.fr>
> Cc: elfring@users.sourceforge.net
> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
> ---
>   arch/alpha/include/asm/pgalloc.h             |  6 +++---
>   arch/arc/include/asm/pgalloc.h               |  5 ++---
>   arch/arm/include/asm/pgalloc.h               |  4 ++--
>   arch/arm64/include/asm/pgalloc.h             |  4 ++--
>   arch/hexagon/include/asm/pgalloc.h           |  6 ++----
>   arch/ia64/include/asm/pgalloc.h              |  5 ++---
>   arch/m68k/include/asm/mcf_pgalloc.h          |  8 ++------
>   arch/m68k/include/asm/motorola_pgalloc.h     |  4 ++--
>   arch/m68k/include/asm/sun3_pgalloc.h         |  6 ++----
>   arch/microblaze/include/asm/pgalloc.h        | 19 ++-----------------
>   arch/microblaze/mm/pgtable.c                 |  3 +--
>   arch/mips/include/asm/pgalloc.h              |  6 ++----
>   arch/nds32/include/asm/pgalloc.h             |  5 ++---
>   arch/nios2/include/asm/pgalloc.h             |  6 ++----
>   arch/openrisc/include/asm/pgalloc.h          |  5 ++---
>   arch/openrisc/mm/ioremap.c                   |  3 +--
>   arch/parisc/include/asm/pgalloc.h            |  4 ++--
>   arch/powerpc/include/asm/book3s/32/pgalloc.h |  4 ++--
>   arch/powerpc/include/asm/book3s/64/pgalloc.h | 12 +++++-------
>   arch/powerpc/include/asm/nohash/32/pgalloc.h |  4 ++--
>   arch/powerpc/include/asm/nohash/64/pgalloc.h |  6 ++----
>   arch/powerpc/mm/pgtable-book3s64.c           |  2 +-
>   arch/powerpc/mm/pgtable_32.c                 |  4 ++--
>   arch/riscv/include/asm/pgalloc.h             |  6 ++----
>   arch/s390/include/asm/pgalloc.h              |  4 ++--
>   arch/sh/include/asm/pgalloc.h                |  6 ++----
>   arch/sparc/include/asm/pgalloc_32.h          |  5 ++---
>   arch/sparc/include/asm/pgalloc_64.h          |  6 ++----
>   arch/sparc/mm/init_64.c                      |  6 ++----
>   arch/sparc/mm/srmmu.c                        |  4 ++--
>   arch/um/kernel/mem.c                         |  4 ++--

There is a declaration of pte_alloc_one in arch/um/include/asm/pgalloc.h

This patch missed it.

>   arch/unicore32/include/asm/pgalloc.h         |  4 ++--
>   arch/x86/include/asm/pgalloc.h               |  4 ++--
>   arch/x86/mm/pgtable.c                        |  4 ++--
>   arch/xtensa/include/asm/pgalloc.h            |  8 +++-----
>   include/linux/mm.h                           | 13 ++++++-------
>   mm/huge_memory.c                             |  8 ++++----
>   mm/kasan/kasan_init.c                        |  2 +-
>   mm/memory.c                                  | 17 ++++++++---------
>   mm/migrate.c                                 |  2 +-
>   mm/mremap.c                                  |  2 +-
>   mm/userfaultfd.c                             |  2 +-
>   virt/kvm/arm/mmu.c                           |  2 +-
>   43 files changed, 95 insertions(+), 145 deletions(-)
>
> diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
> index ab3e3a8638fb..02f9f91bb4f0 100644
> --- a/arch/alpha/include/asm/pgalloc.h
> +++ b/arch/alpha/include/asm/pgalloc.h
> @@ -52,7 +52,7 @@ pmd_free(struct mm_struct *mm, pmd_t *pmd)
>   }
>   
>   static inline pte_t *
> -pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
> +pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
>   	return pte;
> @@ -65,9 +65,9 @@ pte_free_kernel(struct mm_struct *mm, pte_t *pte)
>   }
>   
>   static inline pgtable_t
> -pte_alloc_one(struct mm_struct *mm, unsigned long address)
> +pte_alloc_one(struct mm_struct *mm)
>   {
> -	pte_t *pte = pte_alloc_one_kernel(mm, address);
> +	pte_t *pte = pte_alloc_one_kernel(mm);
>   	struct page *page;
>   
>   	if (!pte)
> diff --git a/arch/arc/include/asm/pgalloc.h b/arch/arc/include/asm/pgalloc.h
> index 3749234b7419..9c9b5a5ebf2e 100644
> --- a/arch/arc/include/asm/pgalloc.h
> +++ b/arch/arc/include/asm/pgalloc.h
> @@ -90,8 +90,7 @@ static inline int __get_order_pte(void)
>   	return get_order(PTRS_PER_PTE * sizeof(pte_t));
>   }
>   
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -					unsigned long address)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	pte_t *pte;
>   
> @@ -102,7 +101,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
>   }
>   
>   static inline pgtable_t
> -pte_alloc_one(struct mm_struct *mm, unsigned long address)
> +pte_alloc_one(struct mm_struct *mm)
>   {
>   	pgtable_t pte_pg;
>   	struct page *page;
> diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
> index 2d7344f0e208..17ab72f0cc4e 100644
> --- a/arch/arm/include/asm/pgalloc.h
> +++ b/arch/arm/include/asm/pgalloc.h
> @@ -81,7 +81,7 @@ static inline void clean_pte_table(pte_t *pte)
>    *  +------------+
>    */
>   static inline pte_t *
> -pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
> +pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	pte_t *pte;
>   
> @@ -93,7 +93,7 @@ pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
>   }
>   
>   static inline pgtable_t
> -pte_alloc_one(struct mm_struct *mm, unsigned long addr)
> +pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *pte;
>   
> diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h
> index 2e05bcd944c8..52fa47c73bf0 100644
> --- a/arch/arm64/include/asm/pgalloc.h
> +++ b/arch/arm64/include/asm/pgalloc.h
> @@ -91,13 +91,13 @@ extern pgd_t *pgd_alloc(struct mm_struct *mm);
>   extern void pgd_free(struct mm_struct *mm, pgd_t *pgdp);
>   
>   static inline pte_t *
> -pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
> +pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	return (pte_t *)__get_free_page(PGALLOC_GFP);
>   }
>   
>   static inline pgtable_t
> -pte_alloc_one(struct mm_struct *mm, unsigned long addr)
> +pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *pte;
>   
> diff --git a/arch/hexagon/include/asm/pgalloc.h b/arch/hexagon/include/asm/pgalloc.h
> index eeebf862c46c..d36183887b60 100644
> --- a/arch/hexagon/include/asm/pgalloc.h
> +++ b/arch/hexagon/include/asm/pgalloc.h
> @@ -59,8 +59,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
>   	free_page((unsigned long) pgd);
>   }
>   
> -static inline struct page *pte_alloc_one(struct mm_struct *mm,
> -					 unsigned long address)
> +static inline struct page *pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *pte;
>   
> @@ -75,8 +74,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
>   }
>   
>   /* _kernel variant gets to use a different allocator */
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -					  unsigned long address)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	gfp_t flags =  GFP_KERNEL | __GFP_ZERO;
>   	return (pte_t *) __get_free_page(flags);
> diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
> index 3ee5362f2661..c9e481023c25 100644
> --- a/arch/ia64/include/asm/pgalloc.h
> +++ b/arch/ia64/include/asm/pgalloc.h
> @@ -83,7 +83,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
>   	pmd_val(*pmd_entry) = __pa(pte);
>   }
>   
> -static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
> +static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *page;
>   	void *pg;
> @@ -99,8 +99,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
>   	return page;
>   }
>   
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -					  unsigned long addr)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	return quicklist_alloc(0, GFP_KERNEL, NULL);
>   }
> diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h
> index 12fe700632f4..4399d712f6db 100644
> --- a/arch/m68k/include/asm/mcf_pgalloc.h
> +++ b/arch/m68k/include/asm/mcf_pgalloc.h
> @@ -12,8 +12,7 @@ extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
>   
>   extern const char bad_pmd_string[];
>   
> -extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -	unsigned long address)
> +extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	unsigned long page = __get_free_page(GFP_DMA);
>   
> @@ -32,8 +31,6 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address)
>   #define pmd_alloc_one_fast(mm, address) ({ BUG(); ((pmd_t *)1); })
>   #define pmd_alloc_one(mm, address)      ({ BUG(); ((pmd_t *)2); })
>   
> -#define pte_alloc_one_fast(mm, addr) pte_alloc_one(mm, addr)
> -
>   #define pmd_populate(mm, pmd, page) (pmd_val(*pmd) = \
>   	(unsigned long)(page_address(page)))
>   
> @@ -50,8 +47,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
>   
>   #define __pmd_free_tlb(tlb, pmd, address) do { } while (0)
>   
> -static inline struct page *pte_alloc_one(struct mm_struct *mm,
> -	unsigned long address)
> +static inline struct page *pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *page = alloc_pages(GFP_DMA, 0);
>   	pte_t *pte;
> diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h
> index 7859a86319cf..d04d9ba9b976 100644
> --- a/arch/m68k/include/asm/motorola_pgalloc.h
> +++ b/arch/m68k/include/asm/motorola_pgalloc.h
> @@ -8,7 +8,7 @@
>   extern pmd_t *get_pointer_table(void);
>   extern int free_pointer_table(pmd_t *);
>   
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	pte_t *pte;
>   
> @@ -28,7 +28,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
>   	free_page((unsigned long) pte);
>   }
>   
> -static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
> +static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *page;
>   	pte_t *pte;
> diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h
> index 11485d38de4e..1456c5eecbd9 100644
> --- a/arch/m68k/include/asm/sun3_pgalloc.h
> +++ b/arch/m68k/include/asm/sun3_pgalloc.h
> @@ -35,8 +35,7 @@ do {							\
>   	tlb_remove_page((tlb), pte);			\
>   } while (0)
>   
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -					  unsigned long address)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	unsigned long page = __get_free_page(GFP_KERNEL);
>   
> @@ -47,8 +46,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
>   	return (pte_t *) (page);
>   }
>   
> -static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
> -					unsigned long address)
> +static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
>           struct page *page = alloc_pages(GFP_KERNEL, 0);
>   
> diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
> index 7c89390c0c13..f4cc9ffc449e 100644
> --- a/arch/microblaze/include/asm/pgalloc.h
> +++ b/arch/microblaze/include/asm/pgalloc.h
> @@ -108,10 +108,9 @@ static inline void free_pgd_slow(pgd_t *pgd)
>   #define pmd_alloc_one_fast(mm, address)	({ BUG(); ((pmd_t *)1); })
>   #define pmd_alloc_one(mm, address)	({ BUG(); ((pmd_t *)2); })
>   
> -extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
> +extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
>   
> -static inline struct page *pte_alloc_one(struct mm_struct *mm,
> -		unsigned long address)
> +static inline struct page *pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *ptepage;
>   
> @@ -132,20 +131,6 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
>   	return ptepage;
>   }
>   
> -static inline pte_t *pte_alloc_one_fast(struct mm_struct *mm,
> -		unsigned long address)
> -{
> -	unsigned long *ret;
> -
> -	ret = pte_quicklist;
> -	if (ret != NULL) {
> -		pte_quicklist = (unsigned long *)(*ret);
> -		ret[0] = 0;
> -		pgtable_cache_size--;
> -	}
> -	return (pte_t *)ret;
> -}
> -
>   static inline void pte_free_fast(pte_t *pte)
>   {
>   	*(unsigned long **)pte = pte_quicklist;
> diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c
> index 7f525962cdfa..c2ce1e42b888 100644
> --- a/arch/microblaze/mm/pgtable.c
> +++ b/arch/microblaze/mm/pgtable.c
> @@ -235,8 +235,7 @@ unsigned long iopa(unsigned long addr)
>   	return pa;
>   }
>   
> -__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -		unsigned long address)
> +__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	pte_t *pte;
>   	if (mem_init_done) {
> diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
> index 39b9f311c4ef..27808d9461f4 100644
> --- a/arch/mips/include/asm/pgalloc.h
> +++ b/arch/mips/include/asm/pgalloc.h
> @@ -50,14 +50,12 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
>   	free_pages((unsigned long)pgd, PGD_ORDER);
>   }
>   
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -	unsigned long address)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	return (pte_t *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, PTE_ORDER);
>   }
>   
> -static inline struct page *pte_alloc_one(struct mm_struct *mm,
> -	unsigned long address)
> +static inline struct page *pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *pte;
>   
> diff --git a/arch/nds32/include/asm/pgalloc.h b/arch/nds32/include/asm/pgalloc.h
> index 27448869131a..3c5fee5b5759 100644
> --- a/arch/nds32/include/asm/pgalloc.h
> +++ b/arch/nds32/include/asm/pgalloc.h
> @@ -22,8 +22,7 @@ extern void pgd_free(struct mm_struct *mm, pgd_t * pgd);
>   
>   #define check_pgt_cache()		do { } while (0)
>   
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -					  unsigned long addr)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	pte_t *pte;
>   
> @@ -34,7 +33,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
>   	return pte;
>   }
>   
> -static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
> +static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
>   	pgtable_t pte;
>   
> diff --git a/arch/nios2/include/asm/pgalloc.h b/arch/nios2/include/asm/pgalloc.h
> index bb47d08c8ef7..3a149ead1207 100644
> --- a/arch/nios2/include/asm/pgalloc.h
> +++ b/arch/nios2/include/asm/pgalloc.h
> @@ -37,8 +37,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
>   	free_pages((unsigned long)pgd, PGD_ORDER);
>   }
>   
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -	unsigned long address)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	pte_t *pte;
>   
> @@ -47,8 +46,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
>   	return pte;
>   }
>   
> -static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
> -	unsigned long address)
> +static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *pte;
>   
> diff --git a/arch/openrisc/include/asm/pgalloc.h b/arch/openrisc/include/asm/pgalloc.h
> index 8999b9226512..149c82ee4b8b 100644
> --- a/arch/openrisc/include/asm/pgalloc.h
> +++ b/arch/openrisc/include/asm/pgalloc.h
> @@ -70,10 +70,9 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
>   	free_page((unsigned long)pgd);
>   }
>   
> -extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address);
> +extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
>   
> -static inline struct page *pte_alloc_one(struct mm_struct *mm,
> -					 unsigned long address)
> +static inline struct page *pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *pte;
>   	pte = alloc_pages(GFP_KERNEL, 0);
> diff --git a/arch/openrisc/mm/ioremap.c b/arch/openrisc/mm/ioremap.c
> index 2175e4bfd9fc..24fb1021c75a 100644
> --- a/arch/openrisc/mm/ioremap.c
> +++ b/arch/openrisc/mm/ioremap.c
> @@ -118,8 +118,7 @@ EXPORT_SYMBOL(iounmap);
>    * the memblock infrastructure.
>    */
>   
> -pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm,
> -					 unsigned long address)
> +pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	pte_t *pte;
>   
> diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
> index cf13275f7c6d..d05c678c77c4 100644
> --- a/arch/parisc/include/asm/pgalloc.h
> +++ b/arch/parisc/include/asm/pgalloc.h
> @@ -122,7 +122,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
>   #define pmd_pgtable(pmd) pmd_page(pmd)
>   
>   static inline pgtable_t
> -pte_alloc_one(struct mm_struct *mm, unsigned long address)
> +pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *page = alloc_page(GFP_KERNEL|__GFP_ZERO);
>   	if (!page)
> @@ -135,7 +135,7 @@ pte_alloc_one(struct mm_struct *mm, unsigned long address)
>   }
>   
>   static inline pte_t *
> -pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
> +pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
>   	return pte;
> diff --git a/arch/powerpc/include/asm/book3s/32/pgalloc.h b/arch/powerpc/include/asm/book3s/32/pgalloc.h
> index 82e44b1a00ae..af9e13555d95 100644
> --- a/arch/powerpc/include/asm/book3s/32/pgalloc.h
> +++ b/arch/powerpc/include/asm/book3s/32/pgalloc.h
> @@ -82,8 +82,8 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp,
>   #define pmd_pgtable(pmd) pmd_page(pmd)
>   #endif
>   
> -extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
> -extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
> +extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
> +extern pgtable_t pte_alloc_one(struct mm_struct *mm);
>   
>   static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
>   {
> diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h
> index 391ed2c3b697..8f1d92e99fe5 100644
> --- a/arch/powerpc/include/asm/book3s/64/pgalloc.h
> +++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h
> @@ -42,7 +42,7 @@ extern struct kmem_cache *pgtable_cache[];
>   			pgtable_cache[(shift) - 1];	\
>   		})
>   
> -extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int);
> +extern pte_t *pte_fragment_alloc(struct mm_struct *, int);
>   extern pmd_t *pmd_fragment_alloc(struct mm_struct *, unsigned long);
>   extern void pte_fragment_free(unsigned long *, int);
>   extern void pmd_fragment_free(unsigned long *);
> @@ -192,16 +192,14 @@ static inline pgtable_t pmd_pgtable(pmd_t pmd)
>   	return (pgtable_t)pmd_page_vaddr(pmd);
>   }
>   
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -					  unsigned long address)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
> -	return (pte_t *)pte_fragment_alloc(mm, address, 1);
> +	return (pte_t *)pte_fragment_alloc(mm, 1);
>   }
>   
> -static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
> -				      unsigned long address)
> +static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
> -	return (pgtable_t)pte_fragment_alloc(mm, address, 0);
> +	return (pgtable_t)pte_fragment_alloc(mm, 0);
>   }
>   
>   static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
> diff --git a/arch/powerpc/include/asm/nohash/32/pgalloc.h b/arch/powerpc/include/asm/nohash/32/pgalloc.h
> index 8825953c225b..16623f53f0d4 100644
> --- a/arch/powerpc/include/asm/nohash/32/pgalloc.h
> +++ b/arch/powerpc/include/asm/nohash/32/pgalloc.h
> @@ -83,8 +83,8 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp,
>   #define pmd_pgtable(pmd) pmd_page(pmd)
>   #endif
>   
> -extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
> -extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
> +extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
> +extern pgtable_t pte_alloc_one(struct mm_struct *mm);
>   
>   static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
>   {
> diff --git a/arch/powerpc/include/asm/nohash/64/pgalloc.h b/arch/powerpc/include/asm/nohash/64/pgalloc.h
> index e2d62d033708..2e7e0230edf4 100644
> --- a/arch/powerpc/include/asm/nohash/64/pgalloc.h
> +++ b/arch/powerpc/include/asm/nohash/64/pgalloc.h
> @@ -96,14 +96,12 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>   }
>   
>   
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -					  unsigned long address)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
>   }
>   
> -static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
> -				      unsigned long address)
> +static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *page;
>   	pte_t *pte;
> diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c
> index 01d7c0f7c4f0..cff1d426ca6a 100644
> --- a/arch/powerpc/mm/pgtable-book3s64.c
> +++ b/arch/powerpc/mm/pgtable-book3s64.c
> @@ -379,7 +379,7 @@ static pte_t *__alloc_for_ptecache(struct mm_struct *mm, int kernel)
>   	return (pte_t *)ret;
>   }
>   
> -pte_t *pte_fragment_alloc(struct mm_struct *mm, unsigned long vmaddr, int kernel)
> +pte_t *pte_fragment_alloc(struct mm_struct *mm, int kernel)
>   {
>   	pte_t *pte;
>   
> diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
> index 120a49bfb9c6..b99a89cdcc5e 100644
> --- a/arch/powerpc/mm/pgtable_32.c
> +++ b/arch/powerpc/mm/pgtable_32.c
> @@ -43,7 +43,7 @@ EXPORT_SYMBOL(ioremap_bot);	/* aka VMALLOC_END */
>   
>   extern char etext[], _stext[], _sinittext[], _einittext[];
>   
> -__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
> +__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	pte_t *pte;
>   
> @@ -57,7 +57,7 @@ __ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
>   	return pte;
>   }
>   
> -pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
> +pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *ptepage;
>   
> diff --git a/arch/riscv/include/asm/pgalloc.h b/arch/riscv/include/asm/pgalloc.h
> index a79ed5faff3a..94043cf83c90 100644
> --- a/arch/riscv/include/asm/pgalloc.h
> +++ b/arch/riscv/include/asm/pgalloc.h
> @@ -82,15 +82,13 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>   
>   #endif /* __PAGETABLE_PMD_FOLDED */
>   
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -	unsigned long address)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	return (pte_t *)__get_free_page(
>   		GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_ZERO);
>   }
>   
> -static inline struct page *pte_alloc_one(struct mm_struct *mm,
> -	unsigned long address)
> +static inline struct page *pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *pte;
>   
> diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
> index f0f9bcf94c03..ce2ca8cbd2ec 100644
> --- a/arch/s390/include/asm/pgalloc.h
> +++ b/arch/s390/include/asm/pgalloc.h
> @@ -139,8 +139,8 @@ static inline void pmd_populate(struct mm_struct *mm,
>   /*
>    * page table entry allocation/free routines.
>    */
> -#define pte_alloc_one_kernel(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
> -#define pte_alloc_one(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
> +#define pte_alloc_one_kernel(mm) ((pte_t *)page_table_alloc(mm))
> +#define pte_alloc_one(mm) ((pte_t *)page_table_alloc(mm))
>   
>   #define pte_free_kernel(mm, pte) page_table_free(mm, (unsigned long *) pte)
>   #define pte_free(mm, pte) page_table_free(mm, (unsigned long *) pte)
> diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h
> index ed053a359ab7..8ad73cb31121 100644
> --- a/arch/sh/include/asm/pgalloc.h
> +++ b/arch/sh/include/asm/pgalloc.h
> @@ -32,14 +32,12 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
>   /*
>    * Allocate and free page tables.
>    */
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -					  unsigned long address)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	return quicklist_alloc(QUICK_PT, GFP_KERNEL, NULL);
>   }
>   
> -static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
> -					unsigned long address)
> +static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *page;
>   	void *pg;
> diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
> index 90459481c6c7..282be50a4adf 100644
> --- a/arch/sparc/include/asm/pgalloc_32.h
> +++ b/arch/sparc/include/asm/pgalloc_32.h
> @@ -58,10 +58,9 @@ void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
>   void pmd_set(pmd_t *pmdp, pte_t *ptep);
>   #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
>   
> -pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
> +pgtable_t pte_alloc_one(struct mm_struct *mm);
>   
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -					  unsigned long address)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
>   }
> diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
> index 874632f34f62..48abccba4991 100644
> --- a/arch/sparc/include/asm/pgalloc_64.h
> +++ b/arch/sparc/include/asm/pgalloc_64.h
> @@ -60,10 +60,8 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
>   	kmem_cache_free(pgtable_cache, pmd);
>   }
>   
> -pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -			    unsigned long address);
> -pgtable_t pte_alloc_one(struct mm_struct *mm,
> -			unsigned long address);
> +pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
> +pgtable_t pte_alloc_one(struct mm_struct *mm);
>   void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
>   void pte_free(struct mm_struct *mm, pgtable_t ptepage);
>   
> diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
> index f396048a0d68..6133f21811e9 100644
> --- a/arch/sparc/mm/init_64.c
> +++ b/arch/sparc/mm/init_64.c
> @@ -2921,8 +2921,7 @@ void __flush_tlb_all(void)
>   			     : : "r" (pstate));
>   }
>   
> -pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -			    unsigned long address)
> +pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO);
>   	pte_t *pte = NULL;
> @@ -2933,8 +2932,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
>   	return pte;
>   }
>   
> -pgtable_t pte_alloc_one(struct mm_struct *mm,
> -			unsigned long address)
> +pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO);
>   	if (!page)
> diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
> index be9cb0065179..ce67a96e70c3 100644
> --- a/arch/sparc/mm/srmmu.c
> +++ b/arch/sparc/mm/srmmu.c
> @@ -364,12 +364,12 @@ pgd_t *get_pgd_fast(void)
>    * Alignments up to the page size are the same for physical and virtual
>    * addresses of the nocache area.
>    */
> -pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
> +pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
>   	unsigned long pte;
>   	struct page *page;
>   
> -	if ((pte = (unsigned long)pte_alloc_one_kernel(mm, address)) == 0)
> +	if ((pte = (unsigned long)pte_alloc_one_kernel(mm)) == 0)
>   		return NULL;
>   	page = pfn_to_page(__nocache_pa(pte) >> PAGE_SHIFT);
>   	if (!pgtable_page_ctor(page)) {
> diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
> index 3c0e470ea646..1f277191fbf3 100644
> --- a/arch/um/kernel/mem.c
> +++ b/arch/um/kernel/mem.c
> @@ -197,7 +197,7 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd)
>   	free_page((unsigned long) pgd);
>   }
>   
> -pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
> +pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	pte_t *pte;
>   
> @@ -205,7 +205,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
>   	return pte;
>   }
>   
> -pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
> +pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *pte;
>   
> diff --git a/arch/unicore32/include/asm/pgalloc.h b/arch/unicore32/include/asm/pgalloc.h
> index f0fdb268f8f2..7cceabecf4e3 100644
> --- a/arch/unicore32/include/asm/pgalloc.h
> +++ b/arch/unicore32/include/asm/pgalloc.h
> @@ -34,7 +34,7 @@ extern void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd);
>    * Allocate one PTE table.
>    */
>   static inline pte_t *
> -pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
> +pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	pte_t *pte;
>   
> @@ -46,7 +46,7 @@ pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
>   }
>   
>   static inline pgtable_t
> -pte_alloc_one(struct mm_struct *mm, unsigned long addr)
> +pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *pte;
>   
> diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
> index fbd578daa66e..5068e85165b2 100644
> --- a/arch/x86/include/asm/pgalloc.h
> +++ b/arch/x86/include/asm/pgalloc.h
> @@ -47,8 +47,8 @@ extern gfp_t __userpte_alloc_gfp;
>   extern pgd_t *pgd_alloc(struct mm_struct *);
>   extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
>   
> -extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
> -extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
> +extern pte_t *pte_alloc_one_kernel(struct mm_struct *);
> +extern pgtable_t pte_alloc_one(struct mm_struct *);
>   
>   /* Should really implement gc for free page table pages. This could be
>      done with a reference count in struct page. */
> diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
> index 089e78c4effd..a2eff247377b 100644
> --- a/arch/x86/mm/pgtable.c
> +++ b/arch/x86/mm/pgtable.c
> @@ -23,12 +23,12 @@ EXPORT_SYMBOL(physical_mask);
>   
>   gfp_t __userpte_alloc_gfp = PGALLOC_GFP | PGALLOC_USER_GFP;
>   
> -pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
> +pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	return (pte_t *)__get_free_page(PGALLOC_GFP & ~__GFP_ACCOUNT);
>   }
>   
> -pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
> +pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
>   	struct page *pte;
>   
> diff --git a/arch/xtensa/include/asm/pgalloc.h b/arch/xtensa/include/asm/pgalloc.h
> index 1065bc8bcae5..b3b388ff2f01 100644
> --- a/arch/xtensa/include/asm/pgalloc.h
> +++ b/arch/xtensa/include/asm/pgalloc.h
> @@ -38,8 +38,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
>   	free_page((unsigned long)pgd);
>   }
>   
> -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> -					 unsigned long address)
> +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
>   {
>   	pte_t *ptep;
>   	int i;
> @@ -52,13 +51,12 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
>   	return ptep;
>   }
>   
> -static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
> -					unsigned long addr)
> +static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
>   {
>   	pte_t *pte;
>   	struct page *page;
>   
> -	pte = pte_alloc_one_kernel(mm, addr);
> +	pte = pte_alloc_one_kernel(mm);
>   	if (!pte)
>   		return NULL;
>   	page = virt_to_page(pte);
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 0416a7204be3..89c2b1739a69 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -1789,8 +1789,8 @@ static inline void mm_inc_nr_ptes(struct mm_struct *mm) {}
>   static inline void mm_dec_nr_ptes(struct mm_struct *mm) {}
>   #endif
>   
> -int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address);
> -int __pte_alloc_kernel(pmd_t *pmd, unsigned long address);
> +int __pte_alloc(struct mm_struct *mm, pmd_t *pmd);
> +int __pte_alloc_kernel(pmd_t *pmd);
>   
>   /*
>    * The following ifdef needed to get the 4level-fixup.h header to work.
> @@ -1928,18 +1928,17 @@ static inline void pgtable_page_dtor(struct page *page)
>   	pte_unmap(pte);					\
>   } while (0)
>   
> -#define pte_alloc(mm, pmd, address)			\
> -	(unlikely(pmd_none(*(pmd))) && __pte_alloc(mm, pmd, address))
> +#define pte_alloc(mm, pmd) (unlikely(pmd_none(*(pmd))) && __pte_alloc(mm, pmd))
>   
>   #define pte_alloc_map(mm, pmd, address)			\
> -	(pte_alloc(mm, pmd, address) ? NULL : pte_offset_map(pmd, address))
> +	(pte_alloc(mm, pmd) ? NULL : pte_offset_map(pmd, address))
>   
>   #define pte_alloc_map_lock(mm, pmd, address, ptlp)	\
> -	(pte_alloc(mm, pmd, address) ?			\
> +	(pte_alloc(mm, pmd) ?			\
>   		 NULL : pte_offset_map_lock(mm, pmd, address, ptlp))
>   
>   #define pte_alloc_kernel(pmd, address)			\
> -	((unlikely(pmd_none(*(pmd))) && __pte_alloc_kernel(pmd, address))? \
> +	((unlikely(pmd_none(*(pmd))) && __pte_alloc_kernel(pmd))? \
>   		NULL: pte_offset_kernel(pmd, address))
>   
>   #if USE_SPLIT_PMD_PTLOCKS
> diff --git a/mm/huge_memory.c b/mm/huge_memory.c
> index 00704060b7f7..fd7e8714e5a1 100644
> --- a/mm/huge_memory.c
> +++ b/mm/huge_memory.c
> @@ -558,7 +558,7 @@ static vm_fault_t __do_huge_pmd_anonymous_page(struct vm_fault *vmf,
>   		return VM_FAULT_FALLBACK;
>   	}
>   
> -	pgtable = pte_alloc_one(vma->vm_mm, haddr);
> +	pgtable = pte_alloc_one(vma->vm_mm);
>   	if (unlikely(!pgtable)) {
>   		ret = VM_FAULT_OOM;
>   		goto release;
> @@ -683,7 +683,7 @@ vm_fault_t do_huge_pmd_anonymous_page(struct vm_fault *vmf)
>   		struct page *zero_page;
>   		bool set;
>   		vm_fault_t ret;
> -		pgtable = pte_alloc_one(vma->vm_mm, haddr);
> +		pgtable = pte_alloc_one(vma->vm_mm);
>   		if (unlikely(!pgtable))
>   			return VM_FAULT_OOM;
>   		zero_page = mm_get_huge_zero_page(vma->vm_mm);
> @@ -772,7 +772,7 @@ vm_fault_t vmf_insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr,
>   		return VM_FAULT_SIGBUS;
>   
>   	if (arch_needs_pgtable_deposit()) {
> -		pgtable = pte_alloc_one(vma->vm_mm, addr);
> +		pgtable = pte_alloc_one(vma->vm_mm);
>   		if (!pgtable)
>   			return VM_FAULT_OOM;
>   	}
> @@ -910,7 +910,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
>   	if (!vma_is_anonymous(vma))
>   		return 0;
>   
> -	pgtable = pte_alloc_one(dst_mm, addr);
> +	pgtable = pte_alloc_one(dst_mm);
>   	if (unlikely(!pgtable))
>   		goto out;
>   
> diff --git a/mm/kasan/kasan_init.c b/mm/kasan/kasan_init.c
> index 7a2a2f13f86f..272849cd2007 100644
> --- a/mm/kasan/kasan_init.c
> +++ b/mm/kasan/kasan_init.c
> @@ -121,7 +121,7 @@ static int __ref zero_pmd_populate(pud_t *pud, unsigned long addr,
>   			pte_t *p;
>   
>   			if (slab_is_available())
> -				p = pte_alloc_one_kernel(&init_mm, addr);
> +				p = pte_alloc_one_kernel(&init_mm);
>   			else
>   				p = early_alloc(PAGE_SIZE, NUMA_NO_NODE);
>   			if (!p)
> diff --git a/mm/memory.c b/mm/memory.c
> index c467102a5cbc..3afdcf38993d 100644
> --- a/mm/memory.c
> +++ b/mm/memory.c
> @@ -647,10 +647,10 @@ void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *vma,
>   	}
>   }
>   
> -int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
> +int __pte_alloc(struct mm_struct *mm, pmd_t *pmd)
>   {
>   	spinlock_t *ptl;
> -	pgtable_t new = pte_alloc_one(mm, address);
> +	pgtable_t new = pte_alloc_one(mm);
>   	if (!new)
>   		return -ENOMEM;
>   
> @@ -681,9 +681,9 @@ int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
>   	return 0;
>   }
>   
> -int __pte_alloc_kernel(pmd_t *pmd, unsigned long address)
> +int __pte_alloc_kernel(pmd_t *pmd)
>   {
> -	pte_t *new = pte_alloc_one_kernel(&init_mm, address);
> +	pte_t *new = pte_alloc_one_kernel(&init_mm);
>   	if (!new)
>   		return -ENOMEM;
>   
> @@ -3139,7 +3139,7 @@ static vm_fault_t do_anonymous_page(struct vm_fault *vmf)
>   	 *
>   	 * Here we only have down_read(mmap_sem).
>   	 */
> -	if (pte_alloc(vma->vm_mm, vmf->pmd, vmf->address))
> +	if (pte_alloc(vma->vm_mm, vmf->pmd))
>   		return VM_FAULT_OOM;
>   
>   	/* See the comment in pte_alloc_one_map() */
> @@ -3286,7 +3286,7 @@ static vm_fault_t pte_alloc_one_map(struct vm_fault *vmf)
>   		pmd_populate(vma->vm_mm, vmf->pmd, vmf->prealloc_pte);
>   		spin_unlock(vmf->ptl);
>   		vmf->prealloc_pte = NULL;
> -	} else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd, vmf->address))) {
> +	} else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd))) {
>   		return VM_FAULT_OOM;
>   	}
>   map_pte:
> @@ -3365,7 +3365,7 @@ static vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page)
>   	 * related to pte entry. Use the preallocated table for that.
>   	 */
>   	if (arch_needs_pgtable_deposit() && !vmf->prealloc_pte) {
> -		vmf->prealloc_pte = pte_alloc_one(vma->vm_mm, vmf->address);
> +		vmf->prealloc_pte = pte_alloc_one(vma->vm_mm);
>   		if (!vmf->prealloc_pte)
>   			return VM_FAULT_OOM;
>   		smp_wmb(); /* See comment in __pte_alloc() */
> @@ -3603,8 +3603,7 @@ static vm_fault_t do_fault_around(struct vm_fault *vmf)
>   			start_pgoff + nr_pages - 1);
>   
>   	if (pmd_none(*vmf->pmd)) {
> -		vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm,
> -						  vmf->address);
> +		vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm);
>   		if (!vmf->prealloc_pte)
>   			goto out;
>   		smp_wmb(); /* See comment in __pte_alloc() */
> diff --git a/mm/migrate.c b/mm/migrate.c
> index 84381b55b2bd..3080b0626026 100644
> --- a/mm/migrate.c
> +++ b/mm/migrate.c
> @@ -2605,7 +2605,7 @@ static void migrate_vma_insert_page(struct migrate_vma *migrate,
>   	 *
>   	 * Here we only have down_read(mmap_sem).
>   	 */
> -	if (pte_alloc(mm, pmdp, addr))
> +	if (pte_alloc(mm, pmdp))
>   		goto abort;
>   
>   	/* See the comment in pte_alloc_one_map() */
> diff --git a/mm/mremap.c b/mm/mremap.c
> index 5c2e18505f75..9e68a02a52b1 100644
> --- a/mm/mremap.c
> +++ b/mm/mremap.c
> @@ -240,7 +240,7 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
>   			if (pmd_trans_unstable(old_pmd))
>   				continue;
>   		}
> -		if (pte_alloc(new_vma->vm_mm, new_pmd, new_addr))
> +		if (pte_alloc(new_vma->vm_mm, new_pmd))
>   			break;
>   		next = (new_addr + PMD_SIZE) & PMD_MASK;
>   		if (extent > next - new_addr)
> diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
> index 5029f241908f..f05c8bc38ca5 100644
> --- a/mm/userfaultfd.c
> +++ b/mm/userfaultfd.c
> @@ -513,7 +513,7 @@ static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,
>   			break;
>   		}
>   		if (unlikely(pmd_none(dst_pmdval)) &&
> -		    unlikely(__pte_alloc(dst_mm, dst_pmd, dst_addr))) {
> +		    unlikely(__pte_alloc(dst_mm, dst_pmd))) {
>   			err = -ENOMEM;
>   			break;
>   		}
> diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
> index ed162a6c57c5..3f8180414301 100644
> --- a/virt/kvm/arm/mmu.c
> +++ b/virt/kvm/arm/mmu.c
> @@ -628,7 +628,7 @@ static int create_hyp_pmd_mappings(pud_t *pud, unsigned long start,
>   		BUG_ON(pmd_sect(*pmd));
>   
>   		if (pmd_none(*pmd)) {
> -			pte = pte_alloc_one_kernel(NULL, addr);
> +			pte = pte_alloc_one_kernel(NULL);
>   			if (!pte) {
>   				kvm_err("Cannot allocate Hyp pte\n");
>   				return -ENOMEM;

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Subject: Re: [PATCH v4 3/6] parisc: add system call table generation support
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To: Firoz Khan <firoz.khan@linaro.org>
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Firoz Khan wrote:

>> > +
>> > +    my_abi="$(cut -d'|' -f2 <<< $my_abis)"
> 
> Here is the logic of identifying the generated script is for compat 
> interface
> or not. So systbl_abi_syscall_table_c32 := common,compat,32 in Makefile
> will parse the script and check the second string whether this is
> "compat" or not.
> 
> Other ways are:
> 1. add an extra flag, that will again add the complexity
> 2. check if [ ${out: -5} = "c32.h" ], this looks weird
> 
> Is there any better way to do the same?

What part is that comment directed at? I guess it's the next hunk, so 
I'll comment on that.

>> "<<<" is a bash extension and will not work with /bin/sh.
>> 
>> > +    while read nr abi name entry compat ; do
>> > +     if [ $my_abi = "compat" ]; then
>> > +         if [ -z "$compat" ]; then
>> > +             emit $nxt $nr $entry
>> > +         else
>> > +             emit $nxt $nr $compat
>> > +         fi
>> > +     else
>> > +         emit $nxt $nr $entry
>> > +     fi
>> 
>> I would go for a local variable being set to $compat or $entry and
>> calling emit at only one place. And there should be only one if with 2
>> expressions, no need for 3 branches.

if [ $my_abi = "compat" -a -n "${compat}" ]; then
     somevar=${compat}
else
     somevar=${entry}
fi
emit $nxt $nr $somevar

Eike


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Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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To: "Joel Fernandes (Google)" <joel@joelfernandes.org>,
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On 10/12/18 2:37 AM, Joel Fernandes (Google) wrote:
> Android needs to mremap large regions of memory during memory management
> related operations. The mremap system call can be really slow if THP is
> not enabled. The bottleneck is move_page_tables, which is copying each
> pte at a time, and can be really slow across a large map. Turning on THP
> may not be a viable option, and is not for us. This patch speeds up the
> performance for non-THP system by copying at the PMD level when possible.
>
> The speed up is three orders of magnitude. On a 1GB mremap, the mremap
> completion times drops from 160-250 millesconds to 380-400 microseconds.
>
> Before:
> Total mremap time for 1GB data: 242321014 nanoseconds.
> Total mremap time for 1GB data: 196842467 nanoseconds.
> Total mremap time for 1GB data: 167051162 nanoseconds.
>
> After:
> Total mremap time for 1GB data: 385781 nanoseconds.
> Total mremap time for 1GB data: 388959 nanoseconds.
> Total mremap time for 1GB data: 402813 nanoseconds.
>
> Incase THP is enabled, the optimization is skipped. I also flush the
> tlb every time we do this optimization since I couldn't find a way to
> determine if the low-level PTEs are dirty. It is seen that the cost of
> doing so is not much compared the improvement, on both x86-64 and arm64.
>
> Cc: minchan@kernel.org
> Cc: pantin@google.com
> Cc: hughd@google.com
> Cc: lokeshgidra@google.com
> Cc: dancol@google.com
> Cc: mhocko@kernel.org
> Cc: kirill@shutemov.name
> Cc: akpm@linux-foundation.org
> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
> ---
>   mm/mremap.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++
>   1 file changed, 62 insertions(+)
>
> diff --git a/mm/mremap.c b/mm/mremap.c
> index 9e68a02a52b1..d82c485822ef 100644
> --- a/mm/mremap.c
> +++ b/mm/mremap.c
> @@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
>   		drop_rmap_locks(vma);
>   }
>   
> +static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
> +		  unsigned long new_addr, unsigned long old_end,
> +		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
> +{
> +	spinlock_t *old_ptl, *new_ptl;
> +	struct mm_struct *mm = vma->vm_mm;
> +
> +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> +	    || old_end - old_addr < PMD_SIZE)
> +		return false;
> +
> +	/*
> +	 * The destination pmd shouldn't be established, free_pgtables()
> +	 * should have release it.
> +	 */
> +	if (WARN_ON(!pmd_none(*new_pmd)))
> +		return false;
> +
> +	/*
> +	 * We don't have to worry about the ordering of src and dst
> +	 * ptlocks because exclusive mmap_sem prevents deadlock.
> +	 */
> +	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
> +	if (old_ptl) {
> +		pmd_t pmd;
> +
> +		new_ptl = pmd_lockptr(mm, new_pmd);
> +		if (new_ptl != old_ptl)
> +			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
> +
> +		/* Clear the pmd */
> +		pmd = *old_pmd;
> +		pmd_clear(old_pmd);
> +
> +		VM_BUG_ON(!pmd_none(*new_pmd));
> +
> +		/* Set the new pmd */
> +		set_pmd_at(mm, new_addr, new_pmd, pmd);

UML does not have set_pmd_at at all

If I read the code right, MIPS completely ignores the address argument 
so set_pmd_at there may not have the effect which this patch is trying 
to achieve.

IMHO, this needs to be a per-architecture, not across full tree.

> +		if (new_ptl != old_ptl)
> +			spin_unlock(new_ptl);
> +		spin_unlock(old_ptl);
> +
> +		*need_flush = true;
> +		return true;
> +	}
> +	return false;
> +}
> +
>   unsigned long move_page_tables(struct vm_area_struct *vma,
>   		unsigned long old_addr, struct vm_area_struct *new_vma,
>   		unsigned long new_addr, unsigned long len,
> @@ -239,7 +287,21 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
>   			split_huge_pmd(vma, old_pmd, old_addr);
>   			if (pmd_trans_unstable(old_pmd))
>   				continue;
> +		} else if (extent == PMD_SIZE) {
> +			bool moved;
> +
> +			/* See comment in move_ptes() */
> +			if (need_rmap_locks)
> +				take_rmap_locks(vma);
> +			moved = move_normal_pmd(vma, old_addr, new_addr,
> +					old_end, old_pmd, new_pmd,
> +					&need_flush);
> +			if (need_rmap_locks)
> +				drop_rmap_locks(vma);
> +			if (moved)
> +				continue;
>   		}
> +
>   		if (pte_alloc(new_vma->vm_mm, new_pmd))
>   			break;
>   		next = (new_addr + PMD_SIZE) & PMD_MASK;


Brgds,


A.

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To: Anton Ivanov <anton.ivanov@kot-begemot.co.uk>
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On Fri, Oct 12, 2018 at 03:09:49PM +0100, Anton Ivanov wrote:
> On 10/12/18 2:37 AM, Joel Fernandes (Google) wrote:
> > Android needs to mremap large regions of memory during memory management
> > related operations. The mremap system call can be really slow if THP is
> > not enabled. The bottleneck is move_page_tables, which is copying each
> > pte at a time, and can be really slow across a large map. Turning on THP
> > may not be a viable option, and is not for us. This patch speeds up the
> > performance for non-THP system by copying at the PMD level when possible.
> > 
> > The speed up is three orders of magnitude. On a 1GB mremap, the mremap
> > completion times drops from 160-250 millesconds to 380-400 microseconds.
> > 
> > Before:
> > Total mremap time for 1GB data: 242321014 nanoseconds.
> > Total mremap time for 1GB data: 196842467 nanoseconds.
> > Total mremap time for 1GB data: 167051162 nanoseconds.
> > 
> > After:
> > Total mremap time for 1GB data: 385781 nanoseconds.
> > Total mremap time for 1GB data: 388959 nanoseconds.
> > Total mremap time for 1GB data: 402813 nanoseconds.
> > 
> > Incase THP is enabled, the optimization is skipped. I also flush the
> > tlb every time we do this optimization since I couldn't find a way to
> > determine if the low-level PTEs are dirty. It is seen that the cost of
> > doing so is not much compared the improvement, on both x86-64 and arm64.
> > 
> > Cc: minchan@kernel.org
> > Cc: pantin@google.com
> > Cc: hughd@google.com
> > Cc: lokeshgidra@google.com
> > Cc: dancol@google.com
> > Cc: mhocko@kernel.org
> > Cc: kirill@shutemov.name
> > Cc: akpm@linux-foundation.org
> > Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
> > ---
> >   mm/mremap.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++
> >   1 file changed, 62 insertions(+)
> > 
> > diff --git a/mm/mremap.c b/mm/mremap.c
> > index 9e68a02a52b1..d82c485822ef 100644
> > --- a/mm/mremap.c
> > +++ b/mm/mremap.c
> > @@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
> >   		drop_rmap_locks(vma);
> >   }
> > +static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
> > +		  unsigned long new_addr, unsigned long old_end,
> > +		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
> > +{
> > +	spinlock_t *old_ptl, *new_ptl;
> > +	struct mm_struct *mm = vma->vm_mm;
> > +
> > +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> > +	    || old_end - old_addr < PMD_SIZE)
> > +		return false;
> > +
> > +	/*
> > +	 * The destination pmd shouldn't be established, free_pgtables()
> > +	 * should have release it.
> > +	 */
> > +	if (WARN_ON(!pmd_none(*new_pmd)))
> > +		return false;
> > +
> > +	/*
> > +	 * We don't have to worry about the ordering of src and dst
> > +	 * ptlocks because exclusive mmap_sem prevents deadlock.
> > +	 */
> > +	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
> > +	if (old_ptl) {
> > +		pmd_t pmd;
> > +
> > +		new_ptl = pmd_lockptr(mm, new_pmd);
> > +		if (new_ptl != old_ptl)
> > +			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
> > +
> > +		/* Clear the pmd */
> > +		pmd = *old_pmd;
> > +		pmd_clear(old_pmd);
> > +
> > +		VM_BUG_ON(!pmd_none(*new_pmd));
> > +
> > +		/* Set the new pmd */
> > +		set_pmd_at(mm, new_addr, new_pmd, pmd);
> 
> UML does not have set_pmd_at at all

Every architecture does. :)

But it may come not from the arch code.

> If I read the code right, MIPS completely ignores the address argument so
> set_pmd_at there may not have the effect which this patch is trying to
> achieve.

Ignoring address is fine. Most architectures do that..
The ideas is to move page table to the new pmd slot. It's nothing to do
with the address passed to set_pmd_at().

-- 
 Kirill A. Shutemov

From - Thu Nov 08 21:42:12 2018
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From: Anton Ivanov <anton.ivanov@kot-begemot.co.uk>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.riscv,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.sparc,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
Date: Fri, 12 Oct 2018 15:48:15 +0100
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Peter Zijlstra <peterz@infradead.org>,
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 linux-hexagon@vger.kernel.org, Helge Deller <deller@gmx.de>,
 "maintainer:X86 ARCHITECTURE 32-BIT AND 64-BIT" <x86@kernel.org>,
 hughd@google.com, "James E.J. Bottomley" <jejb@parisc-linux.org>,
 kasan-dev@googlegroups.com, kvmarm@lists.cs.columbia.edu,
 Ingo Molnar <mingo
To: "Kirill A. Shutemov" <kirill@shutemov.name>
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On 12/10/2018 15:37, Kirill A. Shutemov wrote:
> On Fri, Oct 12, 2018 at 03:09:49PM +0100, Anton Ivanov wrote:
>> On 10/12/18 2:37 AM, Joel Fernandes (Google) wrote:
>>> Android needs to mremap large regions of memory during memory management
>>> related operations. The mremap system call can be really slow if THP is
>>> not enabled. The bottleneck is move_page_tables, which is copying each
>>> pte at a time, and can be really slow across a large map. Turning on THP
>>> may not be a viable option, and is not for us. This patch speeds up the
>>> performance for non-THP system by copying at the PMD level when possible.
>>>
>>> The speed up is three orders of magnitude. On a 1GB mremap, the mremap
>>> completion times drops from 160-250 millesconds to 380-400 microseconds.
>>>
>>> Before:
>>> Total mremap time for 1GB data: 242321014 nanoseconds.
>>> Total mremap time for 1GB data: 196842467 nanoseconds.
>>> Total mremap time for 1GB data: 167051162 nanoseconds.
>>>
>>> After:
>>> Total mremap time for 1GB data: 385781 nanoseconds.
>>> Total mremap time for 1GB data: 388959 nanoseconds.
>>> Total mremap time for 1GB data: 402813 nanoseconds.
>>>
>>> Incase THP is enabled, the optimization is skipped. I also flush the
>>> tlb every time we do this optimization since I couldn't find a way to
>>> determine if the low-level PTEs are dirty. It is seen that the cost of
>>> doing so is not much compared the improvement, on both x86-64 and arm64.
>>>
>>> Cc: minchan@kernel.org
>>> Cc: pantin@google.com
>>> Cc: hughd@google.com
>>> Cc: lokeshgidra@google.com
>>> Cc: dancol@google.com
>>> Cc: mhocko@kernel.org
>>> Cc: kirill@shutemov.name
>>> Cc: akpm@linux-foundation.org
>>> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
>>> ---
>>>    mm/mremap.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>    1 file changed, 62 insertions(+)
>>>
>>> diff --git a/mm/mremap.c b/mm/mremap.c
>>> index 9e68a02a52b1..d82c485822ef 100644
>>> --- a/mm/mremap.c
>>> +++ b/mm/mremap.c
>>> @@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
>>>    		drop_rmap_locks(vma);
>>>    }
>>> +static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
>>> +		  unsigned long new_addr, unsigned long old_end,
>>> +		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
>>> +{
>>> +	spinlock_t *old_ptl, *new_ptl;
>>> +	struct mm_struct *mm = vma->vm_mm;
>>> +
>>> +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
>>> +	    || old_end - old_addr < PMD_SIZE)
>>> +		return false;
>>> +
>>> +	/*
>>> +	 * The destination pmd shouldn't be established, free_pgtables()
>>> +	 * should have release it.
>>> +	 */
>>> +	if (WARN_ON(!pmd_none(*new_pmd)))
>>> +		return false;
>>> +
>>> +	/*
>>> +	 * We don't have to worry about the ordering of src and dst
>>> +	 * ptlocks because exclusive mmap_sem prevents deadlock.
>>> +	 */
>>> +	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
>>> +	if (old_ptl) {
>>> +		pmd_t pmd;
>>> +
>>> +		new_ptl = pmd_lockptr(mm, new_pmd);
>>> +		if (new_ptl != old_ptl)
>>> +			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
>>> +
>>> +		/* Clear the pmd */
>>> +		pmd = *old_pmd;
>>> +		pmd_clear(old_pmd);
>>> +
>>> +		VM_BUG_ON(!pmd_none(*new_pmd));
>>> +
>>> +		/* Set the new pmd */
>>> +		set_pmd_at(mm, new_addr, new_pmd, pmd);
>> UML does not have set_pmd_at at all
> Every architecture does. :)

I tried to build it patching vs 4.19-rc before I made this statement and 
ran into that.

Presently it does not.

https://elixir.bootlin.com/linux/v4.19-rc7/ident/set_pmd_at - UML is not 
on the list.

>
> But it may come not from the arch code.

There is no generic definition as far as I can see. All 12 defines in 
4.19 are in arch specific code. Unless i am missing something...

>
>> If I read the code right, MIPS completely ignores the address argument so
>> set_pmd_at there may not have the effect which this patch is trying to
>> achieve.
> Ignoring address is fine. Most architectures do that..
> The ideas is to move page table to the new pmd slot. It's nothing to do
> with the address passed to set_pmd_at().

If that is it's only function, then I am going to appropriate the code 
out of the MIPS tree for further uml testing. It does exactly that - 
just move the pmd the new slot.

>
A.

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Newsgroups: gmane.linux.ports.riscv,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 1/2] treewide: remove unused address argument from
 pte_alloc functions
Date: Fri, 12 Oct 2018 09:34:33 -0700
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
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On Fri, Oct 12, 2018 at 02:56:19PM +0100, Anton Ivanov wrote:
> 
> On 10/12/18 2:37 AM, Joel Fernandes (Google) wrote:
> > This series speeds up mremap(2) syscall by copying page tables at the
> > PMD level even for non-THP systems. There is concern that the extra
> > 'address' argument that mremap passes to pte_alloc may do something
> > subtle architecture related in the future, that makes the scheme not
> > work.  Also we find that there is no point in passing the 'address' to
> > pte_alloc since its unused.
> > 
> > This patch therefore removes this argument tree-wide resulting in a nice
> > negative diff as well. Also ensuring along the way that the architecture
> > does not do anything funky with 'address' argument that goes unnoticed.
> > 
> > Build and boot tested on x86-64. Build tested on arm64.
> > 
> > The changes were obtained by applying the following Coccinelle script.
> > The pte_fragment_alloc was manually fixed up since it was only 2
> > occurences and could not be easily generalized (and thanks Julia for
> > answering all my silly and not-silly Coccinelle questions!).
> > 
> > // Options: --include-headers --no-includes
> > // Note: I split the 'identifier fn' line, so if you are manually
> > // running it, please unsplit it so it runs for you.
> > 
> > virtual patch
> > 
> > @pte_alloc_func_def depends on patch exists@
> > identifier E2;
> > identifier fn =~
> > "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
> > type T2;
> > @@
> > 
> >   fn(...
> > - , T2 E2
> >   )
> >   { ... }
> > 
> > @pte_alloc_func_proto depends on patch exists@
> > identifier E1, E2, E4;
> > type T1, T2, T3, T4;
> > identifier fn =~
> > "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
> > @@
> > 
> > (
> > - T3 fn(T1 E1, T2 E2);
> > + T3 fn(T1 E1);
> > |
> > - T3 fn(T1 E1, T2 E2, T4 E4);
> > + T3 fn(T1 E1, T2 E2);
> > )
> > 
> > @pte_alloc_func_call depends on patch exists@
> > expression E2;
> > identifier fn =~
> > "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
> > @@
> > 
> >   fn(...
> > -,  E2
> >   )
> > 
> > @pte_alloc_macro depends on patch exists@
> > identifier fn =~
> > "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
> > identifier a, b, c;
> > expression e;
> > position p;
> > @@
> > 
> > (
> > - #define fn(a, b, c)@p e
> > + #define fn(a, b) e
> > |
> > - #define fn(a, b)@p e
> > + #define fn(a) e
> > )
> > 
> > Suggested-by: Kirill A. Shutemov <kirill@shutemov.name>
> > Cc: Michal Hocko <mhocko@kernel.org>
> > Cc: Julia Lawall <Julia.Lawall@lip6.fr>
> > Cc: elfring@users.sourceforge.net
> > Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
> > ---
> >   arch/alpha/include/asm/pgalloc.h             |  6 +++---
> >   arch/arc/include/asm/pgalloc.h               |  5 ++---
> >   arch/arm/include/asm/pgalloc.h               |  4 ++--
> >   arch/arm64/include/asm/pgalloc.h             |  4 ++--
> >   arch/hexagon/include/asm/pgalloc.h           |  6 ++----
> >   arch/ia64/include/asm/pgalloc.h              |  5 ++---
> >   arch/m68k/include/asm/mcf_pgalloc.h          |  8 ++------
> >   arch/m68k/include/asm/motorola_pgalloc.h     |  4 ++--
> >   arch/m68k/include/asm/sun3_pgalloc.h         |  6 ++----
> >   arch/microblaze/include/asm/pgalloc.h        | 19 ++-----------------
> >   arch/microblaze/mm/pgtable.c                 |  3 +--
> >   arch/mips/include/asm/pgalloc.h              |  6 ++----
> >   arch/nds32/include/asm/pgalloc.h             |  5 ++---
> >   arch/nios2/include/asm/pgalloc.h             |  6 ++----
> >   arch/openrisc/include/asm/pgalloc.h          |  5 ++---
> >   arch/openrisc/mm/ioremap.c                   |  3 +--
> >   arch/parisc/include/asm/pgalloc.h            |  4 ++--
> >   arch/powerpc/include/asm/book3s/32/pgalloc.h |  4 ++--
> >   arch/powerpc/include/asm/book3s/64/pgalloc.h | 12 +++++-------
> >   arch/powerpc/include/asm/nohash/32/pgalloc.h |  4 ++--
> >   arch/powerpc/include/asm/nohash/64/pgalloc.h |  6 ++----
> >   arch/powerpc/mm/pgtable-book3s64.c           |  2 +-
> >   arch/powerpc/mm/pgtable_32.c                 |  4 ++--
> >   arch/riscv/include/asm/pgalloc.h             |  6 ++----
> >   arch/s390/include/asm/pgalloc.h              |  4 ++--
> >   arch/sh/include/asm/pgalloc.h                |  6 ++----
> >   arch/sparc/include/asm/pgalloc_32.h          |  5 ++---
> >   arch/sparc/include/asm/pgalloc_64.h          |  6 ++----
> >   arch/sparc/mm/init_64.c                      |  6 ++----
> >   arch/sparc/mm/srmmu.c                        |  4 ++--
> >   arch/um/kernel/mem.c                         |  4 ++--
> 
> There is a declaration of pte_alloc_one in arch/um/include/asm/pgalloc.h
> 
> This patch missed it.

Ah, true. Thanks. Couldn't test every arch obviously. The reason this was
missed is the script could not find matches with prototypes without named
parameters:

extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);

I wrote something like this as below but it failed to compile, Julia any
suggestions on how to express this?

@pte_alloc_func_proto depends on patch exists@
type T1, T2, T3, T4;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

(
- T3 fn(T1, T2);
+ T3 fn(T1);
|
- T3 fn(T1, T2, T4);
+ T3 fn(T1, T2);
)

thanks,

 - Joel

From - Thu Nov 08 21:42:13 2018
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From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 1/2] treewide: remove unused address argument from
 pte_alloc functions
Date: Fri, 12 Oct 2018 09:37:25 -0700
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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 Peter Zijlstra <peterz@infradead.org>,
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To: "Kirill A. Shutemov" <kirill@shutemov.name>
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On Fri, Oct 12, 2018 at 02:09:06PM +0300, Kirill A. Shutemov wrote:
> On Thu, Oct 11, 2018 at 06:37:55PM -0700, Joel Fernandes (Google) wrote:
> > diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h
> > index 12fe700632f4..4399d712f6db 100644
> > --- a/arch/m68k/include/asm/mcf_pgalloc.h
> > +++ b/arch/m68k/include/asm/mcf_pgalloc.h
> > @@ -12,8 +12,7 @@ extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
> >  
> >  extern const char bad_pmd_string[];
> >  
> > -extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
> > -	unsigned long address)
> > +extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
> >  {
> >  	unsigned long page = __get_free_page(GFP_DMA);
> >  
> > @@ -32,8 +31,6 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address)
> >  #define pmd_alloc_one_fast(mm, address) ({ BUG(); ((pmd_t *)1); })
> >  #define pmd_alloc_one(mm, address)      ({ BUG(); ((pmd_t *)2); })
> >  
> > -#define pte_alloc_one_fast(mm, addr) pte_alloc_one(mm, addr)
> > -
> 
> I believe this was one done manually, right?
> Please explicitely state everthing you did on not of sematic patch

Ok, I can update the changelog with that information next time I send it.
This is the only thing I didn't mention in the changelog since it was a
trivial unused function deletion.. but I mentioned everything else..

And sir, you are one thorough reviewer! ;-)

 - Joel

[..]

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Path: news.gmane.org!.POSTED!not-for-mail
From: Julia Lawall <julia.lawall@lip6.fr>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 1/2] treewide: remove unused address argument from
 pte_alloc functions
Date: Fri, 12 Oct 2018 18:38:57 +0200 (CEST)
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Approved: news@gmane.org
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References: <20181012013756.11285-1-joel@joelfernandes.org>
 <594fc952-5e87-3162-b2f9-963479d16eb3@kot-begemot.co.uk>
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Cc: linux-mips@linux-mips.org, linux-m68k@vger.kernel.org,
 Rich Felker <dalias@libc.org>, linux-ia64@vger.kernel.org,
 linux-sh@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
 Catalin Marinas <catalin.marinas@arm.com>,
 Dave Hansen <dave.hansen@linux.intel.com>, Will Deacon <will.deacon@arm.com>,
 Michal Hocko <mhocko@kernel.org>, linux-mm@kvack.org, lokeshgidra@google.com,
 sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org,
 elfring@users.sourceforge.net, Jonas Bonn <jonas@southpole.se>,
 linux-s390@vger.kernel.org, dancol@google.com,
 Yoshinori Sato <ysato@users.sourceforge.jp>, Max Filippov <jcmvbkbc@gmail.com>,
 linux-hexagon@vger.kernel.org, Helge Deller <deller@gmx.de>,
 "maintainer:X86 ARCHITECTURE 32-BIT AND 64-BIT" <x86@kernel.org>,
 hughd@google.com, "James E.J. Bottomley" <jejb@parisc-linux.org>,
 kasan-dev@googlegroups.com, Anton Ivanov <anton.ivanov@kot-b
To: Joel Fernandes <joel@joelfernandes.org>
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> I wrote something like this as below but it failed to compile, Julia any
> suggestions on how to express this?
>
> @pte_alloc_func_proto depends on patch exists@
> type T1, T2, T3, T4;
> identifier fn =~
> "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
> @@
>
> (
> - T3 fn(T1, T2);
> + T3 fn(T1);
> |
> - T3 fn(T1, T2, T4);
> + T3 fn(T1, T2);
> )

What goes wrong?  It seems fine to me.

julia

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From: Anton Ivanov <anton.ivanov@kot-begemot.co.uk>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.riscv,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.sparc,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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To: "Kirill A. Shutemov" <kirill@shutemov.name>
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On 10/12/18 3:48 PM, Anton Ivanov wrote:
> On 12/10/2018 15:37, Kirill A. Shutemov wrote:
>> On Fri, Oct 12, 2018 at 03:09:49PM +0100, Anton Ivanov wrote:
>>> On 10/12/18 2:37 AM, Joel Fernandes (Google) wrote:
>>>> Android needs to mremap large regions of memory during memory 
>>>> management
>>>> related operations. The mremap system call can be really slow if 
>>>> THP is
>>>> not enabled. The bottleneck is move_page_tables, which is copying each
>>>> pte at a time, and can be really slow across a large map. Turning 
>>>> on THP
>>>> may not be a viable option, and is not for us. This patch speeds up 
>>>> the
>>>> performance for non-THP system by copying at the PMD level when 
>>>> possible.
>>>>
>>>> The speed up is three orders of magnitude. On a 1GB mremap, the mremap
>>>> completion times drops from 160-250 millesconds to 380-400 
>>>> microseconds.
>>>>
>>>> Before:
>>>> Total mremap time for 1GB data: 242321014 nanoseconds.
>>>> Total mremap time for 1GB data: 196842467 nanoseconds.
>>>> Total mremap time for 1GB data: 167051162 nanoseconds.
>>>>
>>>> After:
>>>> Total mremap time for 1GB data: 385781 nanoseconds.
>>>> Total mremap time for 1GB data: 388959 nanoseconds.
>>>> Total mremap time for 1GB data: 402813 nanoseconds.
>>>>
>>>> Incase THP is enabled, the optimization is skipped. I also flush the
>>>> tlb every time we do this optimization since I couldn't find a way to
>>>> determine if the low-level PTEs are dirty. It is seen that the cost of
>>>> doing so is not much compared the improvement, on both x86-64 and 
>>>> arm64.
>>>>
>>>> Cc: minchan@kernel.org
>>>> Cc: pantin@google.com
>>>> Cc: hughd@google.com
>>>> Cc: lokeshgidra@google.com
>>>> Cc: dancol@google.com
>>>> Cc: mhocko@kernel.org
>>>> Cc: kirill@shutemov.name
>>>> Cc: akpm@linux-foundation.org
>>>> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
>>>> ---
>>>>    mm/mremap.c | 62 
>>>> +++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>>    1 file changed, 62 insertions(+)
>>>>
>>>> diff --git a/mm/mremap.c b/mm/mremap.c
>>>> index 9e68a02a52b1..d82c485822ef 100644
>>>> --- a/mm/mremap.c
>>>> +++ b/mm/mremap.c
>>>> @@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct 
>>>> *vma, pmd_t *old_pmd,
>>>>            drop_rmap_locks(vma);
>>>>    }
>>>> +static bool move_normal_pmd(struct vm_area_struct *vma, unsigned 
>>>> long old_addr,
>>>> +          unsigned long new_addr, unsigned long old_end,
>>>> +          pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
>>>> +{
>>>> +    spinlock_t *old_ptl, *new_ptl;
>>>> +    struct mm_struct *mm = vma->vm_mm;
>>>> +
>>>> +    if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
>>>> +        || old_end - old_addr < PMD_SIZE)
>>>> +        return false;
>>>> +
>>>> +    /*
>>>> +     * The destination pmd shouldn't be established, free_pgtables()
>>>> +     * should have release it.
>>>> +     */
>>>> +    if (WARN_ON(!pmd_none(*new_pmd)))
>>>> +        return false;
>>>> +
>>>> +    /*
>>>> +     * We don't have to worry about the ordering of src and dst
>>>> +     * ptlocks because exclusive mmap_sem prevents deadlock.
>>>> +     */
>>>> +    old_ptl = pmd_lock(vma->vm_mm, old_pmd);
>>>> +    if (old_ptl) {
>>>> +        pmd_t pmd;
>>>> +
>>>> +        new_ptl = pmd_lockptr(mm, new_pmd);
>>>> +        if (new_ptl != old_ptl)
>>>> +            spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
>>>> +
>>>> +        /* Clear the pmd */
>>>> +        pmd = *old_pmd;
>>>> +        pmd_clear(old_pmd);
>>>> +
>>>> +        VM_BUG_ON(!pmd_none(*new_pmd));
>>>> +
>>>> +        /* Set the new pmd */
>>>> +        set_pmd_at(mm, new_addr, new_pmd, pmd);
>>> UML does not have set_pmd_at at all
>> Every architecture does. :)
>
> I tried to build it patching vs 4.19-rc before I made this statement 
> and ran into that.
>
> Presently it does not.
>
> https://elixir.bootlin.com/linux/v4.19-rc7/ident/set_pmd_at - UML is 
> not on the list.

Once this problem as well as the omissions in the include changes for 
UML in patch one have been fixed it appears to be working.

What it needs is attached.


>
>>
>> But it may come not from the arch code.
>
> There is no generic definition as far as I can see. All 12 defines in 
> 4.19 are in arch specific code. Unless i am missing something...
>
>>
>>> If I read the code right, MIPS completely ignores the address 
>>> argument so
>>> set_pmd_at there may not have the effect which this patch is trying to
>>> achieve.
>> Ignoring address is fine. Most architectures do that..
>> The ideas is to move page table to the new pmd slot. It's nothing to do
>> with the address passed to set_pmd_at().
>
> If that is it's only function, then I am going to appropriate the code 
> out of the MIPS tree for further uml testing. It does exactly that - 
> just move the pmd the new slot.
>
>>
> A.


A.


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>From ac265d96897a346b05646fce91784ed4922c7f8d Mon Sep 17 00:00:00 2001
From: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Date: Fri, 12 Oct 2018 17:24:10 +0100
Subject: [PATCH] Incremental fixes to the mmremap patch

Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
---
 arch/um/include/asm/pgalloc.h | 4 ++--
 arch/um/include/asm/pgtable.h | 3 +++
 arch/um/kernel/tlb.c          | 6 ++++++
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/arch/um/include/asm/pgalloc.h b/arch/um/include/asm/pgalloc.h
index bf90b2aa2002..99eb5682792a 100644
--- a/arch/um/include/asm/pgalloc.h
+++ b/arch/um/include/asm/pgalloc.h
@@ -25,8 +25,8 @@
 extern pgd_t *pgd_alloc(struct mm_struct *);
 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
-extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *);
+extern pgtable_t pte_alloc_one(struct mm_struct *);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h
index 7485398d0737..1692da55e63a 100644
--- a/arch/um/include/asm/pgtable.h
+++ b/arch/um/include/asm/pgtable.h
@@ -359,4 +359,7 @@ do {						\
 	__flush_tlb_one((vaddr));		\
 } while (0)
 
+extern void set_pmd_at(struct mm_struct *mm, unsigned long addr,
+		pmd_t *pmdp, pmd_t pmd);
+
 #endif
diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
index 763d35bdda01..d17b74184ba0 100644
--- a/arch/um/kernel/tlb.c
+++ b/arch/um/kernel/tlb.c
@@ -647,3 +647,9 @@ void force_flush_all(void)
 		vma = vma->vm_next;
 	}
 }
+void set_pmd_at(struct mm_struct *mm, unsigned long addr,
+		pmd_t *pmdp, pmd_t pmd)
+{
+	*pmdp = pmd;
+}
+
-- 
2.11.0


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On Fri, Oct 12, 2018 at 06:38:57PM +0200, Julia Lawall wrote:
> > I wrote something like this as below but it failed to compile, Julia any
> > suggestions on how to express this?
> >
> > @pte_alloc_func_proto depends on patch exists@
> > type T1, T2, T3, T4;
> > identifier fn =~
> > "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
> > @@
> >
> > (
> > - T3 fn(T1, T2);
> > + T3 fn(T1);
> > |
> > - T3 fn(T1, T2, T4);
> > + T3 fn(T1, T2);
> > )
> 
> What goes wrong?  It seems fine to me.

Weird it seems working now. I could swear 5 minutes ago it wasn't and I did
give a unique rule name. Don't know what I missed.

Anyway, thank you for all the quick responses and the help!

- Joel

From - Thu Nov 08 21:42:13 2018
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From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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On Fri, Oct 12, 2018 at 05:42:24PM +0100, Anton Ivanov wrote:
> =

> On 10/12/18 3:48 PM, Anton Ivanov wrote:
> > On 12/10/2018 15:37, Kirill A. Shutemov wrote:
> > > On Fri, Oct 12, 2018 at 03:09:49PM +0100, Anton Ivanov wrote:
> > > > On 10/12/18 2:37 AM, Joel Fernandes (Google) wrote:
> > > > > Android needs to mremap large regions of memory during
> > > > > memory management
> > > > > related operations. The mremap system call can be really
> > > > > slow if THP is
> > > > > not enabled. The bottleneck is move_page_tables, which is copying=
 each
> > > > > pte at a time, and can be really slow across a large map.
> > > > > Turning on THP
> > > > > may not be a viable option, and is not for us. This patch
> > > > > speeds up the
> > > > > performance for non-THP system by copying at the PMD level
> > > > > when possible.
> > > > > =

> > > > > The speed up is three orders of magnitude. On a 1GB mremap, the m=
remap
> > > > > completion times drops from 160-250 millesconds to 380-400
> > > > > microseconds.
> > > > > =

> > > > > Before:
> > > > > Total mremap time for 1GB data: 242321014 nanoseconds.
> > > > > Total mremap time for 1GB data: 196842467 nanoseconds.
> > > > > Total mremap time for 1GB data: 167051162 nanoseconds.
> > > > > =

> > > > > After:
> > > > > Total mremap time for 1GB data: 385781 nanoseconds.
> > > > > Total mremap time for 1GB data: 388959 nanoseconds.
> > > > > Total mremap time for 1GB data: 402813 nanoseconds.
> > > > > =

> > > > > Incase THP is enabled, the optimization is skipped. I also flush =
the
> > > > > tlb every time we do this optimization since I couldn't find a wa=
y to
> > > > > determine if the low-level PTEs are dirty. It is seen that the co=
st of
> > > > > doing so is not much compared the improvement, on both
> > > > > x86-64 and arm64.
> > > > > =

> > > > > Cc: minchan@kernel.org
> > > > > Cc: pantin@google.com
> > > > > Cc: hughd@google.com
> > > > > Cc: lokeshgidra@google.com
> > > > > Cc: dancol@google.com
> > > > > Cc: mhocko@kernel.org
> > > > > Cc: kirill@shutemov.name
> > > > > Cc: akpm@linux-foundation.org
> > > > > Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
> > > > > ---
> > > > > =A0=A0 mm/mremap.c | 62
> > > > > +++++++++++++++++++++++++++++++++++++++++++++++++++++
> > > > > =A0=A0 1 file changed, 62 insertions(+)
> > > > > =

> > > > > diff --git a/mm/mremap.c b/mm/mremap.c
> > > > > index 9e68a02a52b1..d82c485822ef 100644
> > > > > --- a/mm/mremap.c
> > > > > +++ b/mm/mremap.c
> > > > > @@ -191,6 +191,54 @@ static void move_ptes(struct
> > > > > vm_area_struct *vma, pmd_t *old_pmd,
> > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 drop_rmap_locks(vma);
> > > > > =A0=A0 }
> > > > > +static bool move_normal_pmd(struct vm_area_struct *vma,
> > > > > unsigned long old_addr,
> > > > > +=A0=A0=A0=A0=A0=A0=A0=A0=A0 unsigned long new_addr, unsigned lon=
g old_end,
> > > > > +=A0=A0=A0=A0=A0=A0=A0=A0=A0 pmd_t *old_pmd, pmd_t *new_pmd, bool=
 *need_flush)
> > > > > +{
> > > > > +=A0=A0=A0 spinlock_t *old_ptl, *new_ptl;
> > > > > +=A0=A0=A0 struct mm_struct *mm =3D vma->vm_mm;
> > > > > +
> > > > > +=A0=A0=A0 if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> > > > > +=A0=A0=A0=A0=A0=A0=A0 || old_end - old_addr < PMD_SIZE)
> > > > > +=A0=A0=A0=A0=A0=A0=A0 return false;
> > > > > +
> > > > > +=A0=A0=A0 /*
> > > > > +=A0=A0=A0=A0 * The destination pmd shouldn't be established, fre=
e_pgtables()
> > > > > +=A0=A0=A0=A0 * should have release it.
> > > > > +=A0=A0=A0=A0 */
> > > > > +=A0=A0=A0 if (WARN_ON(!pmd_none(*new_pmd)))
> > > > > +=A0=A0=A0=A0=A0=A0=A0 return false;
> > > > > +
> > > > > +=A0=A0=A0 /*
> > > > > +=A0=A0=A0=A0 * We don't have to worry about the ordering of src =
and dst
> > > > > +=A0=A0=A0=A0 * ptlocks because exclusive mmap_sem prevents deadl=
ock.
> > > > > +=A0=A0=A0=A0 */
> > > > > +=A0=A0=A0 old_ptl =3D pmd_lock(vma->vm_mm, old_pmd);
> > > > > +=A0=A0=A0 if (old_ptl) {
> > > > > +=A0=A0=A0=A0=A0=A0=A0 pmd_t pmd;
> > > > > +
> > > > > +=A0=A0=A0=A0=A0=A0=A0 new_ptl =3D pmd_lockptr(mm, new_pmd);
> > > > > +=A0=A0=A0=A0=A0=A0=A0 if (new_ptl !=3D old_ptl)
> > > > > +=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 spin_lock_nested(new_ptl, SING=
LE_DEPTH_NESTING);
> > > > > +
> > > > > +=A0=A0=A0=A0=A0=A0=A0 /* Clear the pmd */
> > > > > +=A0=A0=A0=A0=A0=A0=A0 pmd =3D *old_pmd;
> > > > > +=A0=A0=A0=A0=A0=A0=A0 pmd_clear(old_pmd);
> > > > > +
> > > > > +=A0=A0=A0=A0=A0=A0=A0 VM_BUG_ON(!pmd_none(*new_pmd));
> > > > > +
> > > > > +=A0=A0=A0=A0=A0=A0=A0 /* Set the new pmd */
> > > > > +=A0=A0=A0=A0=A0=A0=A0 set_pmd_at(mm, new_addr, new_pmd, pmd);
> > > > UML does not have set_pmd_at at all
> > > Every architecture does. :)
> > =

> > I tried to build it patching vs 4.19-rc before I made this statement and
> > ran into that.
> > =

> > Presently it does not.
> > =

> > https://elixir.bootlin.com/linux/v4.19-rc7/ident/set_pmd_at - UML is not
> > on the list.
> =

> Once this problem as well as the omissions in the include changes for UML=
 in
> patch one have been fixed it appears to be working.
> =

> What it needs is attached.
> =

> =

> > =

> > > =

> > > But it may come not from the arch code.
> > =

> > There is no generic definition as far as I can see. All 12 defines in
> > 4.19 are in arch specific code. Unless i am missing something...
> > =

> > > =

> > > > If I read the code right, MIPS completely ignores the address
> > > > argument so
> > > > set_pmd_at there may not have the effect which this patch is trying=
 to
> > > > achieve.
> > > Ignoring address is fine. Most architectures do that..
> > > The ideas is to move page table to the new pmd slot. It's nothing to =
do
> > > with the address passed to set_pmd_at().
> > =

> > If that is it's only function, then I am going to appropriate the code
> > out of the MIPS tree for further uml testing. It does exactly that -
> > just move the pmd the new slot.
> > =

> > > =

> > A.
> =

> =

> A.
> =


> From ac265d96897a346b05646fce91784ed4922c7f8d Mon Sep 17 00:00:00 2001
> From: Anton Ivanov <anton.ivanov@cambridgegreys.com>
> Date: Fri, 12 Oct 2018 17:24:10 +0100
> Subject: [PATCH] Incremental fixes to the mmremap patch
> =

> Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
> ---
>  arch/um/include/asm/pgalloc.h | 4 ++--
>  arch/um/include/asm/pgtable.h | 3 +++
>  arch/um/kernel/tlb.c          | 6 ++++++
>  3 files changed, 11 insertions(+), 2 deletions(-)
> =

> diff --git a/arch/um/include/asm/pgalloc.h b/arch/um/include/asm/pgalloc.h
> index bf90b2aa2002..99eb5682792a 100644
> --- a/arch/um/include/asm/pgalloc.h
> +++ b/arch/um/include/asm/pgalloc.h
> @@ -25,8 +25,8 @@
>  extern pgd_t *pgd_alloc(struct mm_struct *);
>  extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
>  =

> -extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
> -extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
> +extern pte_t *pte_alloc_one_kernel(struct mm_struct *);
> +extern pgtable_t pte_alloc_one(struct mm_struct *);

If its Ok, let me handle this bit since otherwise it complicates things for
me.

>  static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
>  {
> diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h
> index 7485398d0737..1692da55e63a 100644
> --- a/arch/um/include/asm/pgtable.h
> +++ b/arch/um/include/asm/pgtable.h
> @@ -359,4 +359,7 @@ do {						\
>  	__flush_tlb_one((vaddr));		\
>  } while (0)
>  =

> +extern void set_pmd_at(struct mm_struct *mm, unsigned long addr,
> +		pmd_t *pmdp, pmd_t pmd);
> +
>  #endif
> diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
> index 763d35bdda01..d17b74184ba0 100644
> --- a/arch/um/kernel/tlb.c
> +++ b/arch/um/kernel/tlb.c
> @@ -647,3 +647,9 @@ void force_flush_all(void)
>  		vma =3D vma->vm_next;
>  	}
>  }
> +void set_pmd_at(struct mm_struct *mm, unsigned long addr,
> +		pmd_t *pmdp, pmd_t pmd)
> +{
> +	*pmdp =3D pmd;
> +}
> +

I believe this should be included in a separate patch since it is not relat=
ed
specifically to pte_alloc argument removal. If you want, I could split it
into a separate patch for my series with you as author.

thanks,

- Joel

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Newsgroups: gmane.linux.ports.riscv,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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 Peter Zijlstra <peterz@infradead.org>,
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On Fri, Oct 12, 2018 at 04:19:46PM +0300, Kirill A. Shutemov wrote:
> On Fri, Oct 12, 2018 at 05:50:46AM -0700, Joel Fernandes wrote:
> > On Fri, Oct 12, 2018 at 02:30:56PM +0300, Kirill A. Shutemov wrote:
> > > On Thu, Oct 11, 2018 at 06:37:56PM -0700, Joel Fernandes (Google) wrote:
> > > > Android needs to mremap large regions of memory during memory management
> > > > related operations. The mremap system call can be really slow if THP is
> > > > not enabled. The bottleneck is move_page_tables, which is copying each
> > > > pte at a time, and can be really slow across a large map. Turning on THP
> > > > may not be a viable option, and is not for us. This patch speeds up the
> > > > performance for non-THP system by copying at the PMD level when possible.
> > > > 
> > > > The speed up is three orders of magnitude. On a 1GB mremap, the mremap
> > > > completion times drops from 160-250 millesconds to 380-400 microseconds.
> > > > 
> > > > Before:
> > > > Total mremap time for 1GB data: 242321014 nanoseconds.
> > > > Total mremap time for 1GB data: 196842467 nanoseconds.
> > > > Total mremap time for 1GB data: 167051162 nanoseconds.
> > > > 
> > > > After:
> > > > Total mremap time for 1GB data: 385781 nanoseconds.
> > > > Total mremap time for 1GB data: 388959 nanoseconds.
> > > > Total mremap time for 1GB data: 402813 nanoseconds.
> > > > 
> > > > Incase THP is enabled, the optimization is skipped. I also flush the
> > > > tlb every time we do this optimization since I couldn't find a way to
> > > > determine if the low-level PTEs are dirty. It is seen that the cost of
> > > > doing so is not much compared the improvement, on both x86-64 and arm64.
> > > 
> > > I looked into the code more and noticed move_pte() helper called from
> > > move_ptes(). It changes PTE entry to suite new address.
> > > 
> > > It is only defined in non-trivial way on Sparc. I don't know much about
> > > Sparc and it's hard for me to say if the optimization will break anything
> > > there.
> > 
> > Sparc's move_pte seems to be flushing the D-cache to prevent aliasing. It is
> > not modifying the PTE itself AFAICS:
> > 
> > #ifdef DCACHE_ALIASING_POSSIBLE
> > #define __HAVE_ARCH_MOVE_PTE
> > #define move_pte(pte, prot, old_addr, new_addr)                         \
> > ({                                                                      \
> >         pte_t newpte = (pte);                                           \
> >         if (tlb_type != hypervisor && pte_present(pte)) {               \
> >                 unsigned long this_pfn = pte_pfn(pte);                  \
> >                                                                         \
> >                 if (pfn_valid(this_pfn) &&                              \
> >                     (((old_addr) ^ (new_addr)) & (1 << 13)))            \
> >                         flush_dcache_page_all(current->mm,              \
> >                                               pfn_to_page(this_pfn));   \
> >         }                                                               \
> >         newpte;                                                         \
> > })
> > #endif
> > 
> > If its an issue, then how do transparent huge pages work on Sparc?  I don't
> > see the huge page code (move_huge_pages) during mremap doing anything special
> > for Sparc architecture when moving PMDs..
> 
> My *guess* is that it will work fine on Sparc as it apprarently it only
> cares about change in bit 13 of virtual address. It will never happen for
> huge pages or when PTE page tables move.
> 
> But I just realized that the problem is bigger: since we pass new_addr to
> the set_pte_at() we would need to audit all implementations that they are
> safe with just moving PTE page table.
> 
> I would rather go with per-architecture enabling. It's much safer.

I'm Ok with the per-arch enabling, I agree its safer. So I should be adding a
a new __HAVE_ARCH_MOVE_PMD right, or did you have a better name for that?

Also, do you feel we should still need to remove the address argument from
set_pte_alloc? Or should we leave that alone if we do per-arch?
I figure I spent a bunch of time on that already anyway, and its a clean up
anyway, so may as well do it. But perhaps that "pte_alloc cleanup" can then
be a separate patch independent of this series?

> > Also, do we not flush the caches from any path when we munmap address space?
> > We do call do_munmap on the old mapping from mremap after moving to the new one.
> 
> Are you sure about that? It can be hided deeper in architecture-specific
> code.

I am sure we do call do_munmap, I was asking if we flush the caches as well.
If we're enabling this per architecture, then I guess it does not matter for
the purposes of this patch.

thanks,

 - Joel

From - Thu Nov 08 21:42:13 2018
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From: Anton Ivanov <anton.ivanov@kot-begemot.co.uk>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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Newsgroups: gmane.linux.ports.riscv,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.kernel.arc,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
Date: Fri, 12 Oct 2018 10:06:58 -0700
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Peter Zijlstra <peterz@infradead.org>,
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To: Anton Ivanov <anton.ivanov@kot-begemot.co.uk>
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On Fri, Oct 12, 2018 at 05:58:40PM +0100, Anton Ivanov wrote:
[...]
> > > > > > If I read the code right, MIPS completely ignores the address
> > > > > > argument so
> > > > > > set_pmd_at there may not have the effect which this patch is trying to
> > > > > > achieve.
> > > > > Ignoring address is fine. Most architectures do that..
> > > > > The ideas is to move page table to the new pmd slot. It's nothing to do
> > > > > with the address passed to set_pmd_at().
> > > > If that is it's only function, then I am going to appropriate the code
> > > > out of the MIPS tree for further uml testing. It does exactly that -
> > > > just move the pmd the new slot.
> > > > 
> > > > A.
> > > 
> > > A.
> > > 
> > >  From ac265d96897a346b05646fce91784ed4922c7f8d Mon Sep 17 00:00:00 2001
> > > From: Anton Ivanov <anton.ivanov@cambridgegreys.com>
> > > Date: Fri, 12 Oct 2018 17:24:10 +0100
> > > Subject: [PATCH] Incremental fixes to the mmremap patch
> > > 
> > > Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
> > > ---
> > >   arch/um/include/asm/pgalloc.h | 4 ++--
> > >   arch/um/include/asm/pgtable.h | 3 +++
> > >   arch/um/kernel/tlb.c          | 6 ++++++
> > >   3 files changed, 11 insertions(+), 2 deletions(-)
> > > 
> > > diff --git a/arch/um/include/asm/pgalloc.h b/arch/um/include/asm/pgalloc.h
> > > index bf90b2aa2002..99eb5682792a 100644
> > > --- a/arch/um/include/asm/pgalloc.h
> > > +++ b/arch/um/include/asm/pgalloc.h
> > > @@ -25,8 +25,8 @@
> > >   extern pgd_t *pgd_alloc(struct mm_struct *);
> > >   extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
> > > -extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
> > > -extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
> > > +extern pte_t *pte_alloc_one_kernel(struct mm_struct *);
> > > +extern pgtable_t pte_alloc_one(struct mm_struct *);
> > If its Ok, let me handle this bit since otherwise it complicates things for
> > me.
> > 
> > >   static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
> > >   {
> > > diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h
> > > index 7485398d0737..1692da55e63a 100644
> > > --- a/arch/um/include/asm/pgtable.h
> > > +++ b/arch/um/include/asm/pgtable.h
> > > @@ -359,4 +359,7 @@ do {						\
> > >   	__flush_tlb_one((vaddr));		\
> > >   } while (0)
> > > +extern void set_pmd_at(struct mm_struct *mm, unsigned long addr,
> > > +		pmd_t *pmdp, pmd_t pmd);
> > > +
> > >   #endif
> > > diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
> > > index 763d35bdda01..d17b74184ba0 100644
> > > --- a/arch/um/kernel/tlb.c
> > > +++ b/arch/um/kernel/tlb.c
> > > @@ -647,3 +647,9 @@ void force_flush_all(void)
> > >   		vma = vma->vm_next;
> > >   	}
> > >   }
> > > +void set_pmd_at(struct mm_struct *mm, unsigned long addr,
> > > +		pmd_t *pmdp, pmd_t pmd)
> > > +{
> > > +	*pmdp = pmd;
> > > +}
> > > +
> > I believe this should be included in a separate patch since it is not related
> > specifically to pte_alloc argument removal. If you want, I could split it
> > into a separate patch for my series with you as author.
> 
> 
> Whichever is more convenient for you.

Ok.

> One thing to note - tlb flush is extremely expensive on uml.
> 
> I have lifted the definition of set_pmd_at from the mips tree and removed
> the tlb_flush_all from it for this exact reason.
> 
> If I read the original patch correctly, it does its own flush control so
> set_pmd_at does not need to do a force flush every time. It is done further
> up the chain.

That is correct. It is not done during the optimization, but is done later
after the pmds have moved.

thanks,

 - Joel

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Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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From: "Kirill A. Shutemov" <kirill@shutemov.name>
Date: Fri, 12 Oct 2018 14:30:56 +0300

> I looked into the code more and noticed move_pte() helper called from
> move_ptes(). It changes PTE entry to suite new address.
> 
> It is only defined in non-trivial way on Sparc. I don't know much about
> Sparc and it's hard for me to say if the optimization will break anything
> there.
> 
> I think it worth to disable the optimization if __HAVE_ARCH_MOVE_PTE is
> defined. Or make architectures state explicitely that the optimization is
> safe.

What sparc is doing in move_pte() is flushing the data-cache
(synchronously) if the virtual address color of the mapping changes.

Hope this helps.


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Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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From: Joel Fernandes <joel@joelfernandes.org>
Date: Fri, 12 Oct 2018 05:50:46 -0700

> If its an issue, then how do transparent huge pages work on Sparc?  I don't
> see the huge page code (move_huge_pages) during mremap doing anything special
> for Sparc architecture when moving PMDs..

This is because all huge pages are larger than SHMLBA.  So no cache flushing
necessary.

> Also, do we not flush the caches from any path when we munmap
> address space?  We do call do_munmap on the old mapping from mremap
> after moving to the new one.

Sparc makes sure that shared mapping have consistent colors.  Therefore
all that's left are private mappings and those will be initialized by
block stores to clear the page out or similar.

Also, when creating new mappings, we flush the D-cache when necessary
in update_mmu_cache().

We also maintain a bit in the page struct to track when a page which
was potentially written to on one cpu ends up mapped into another
address space and flush as necessary.

The cache is write-through, which simplifies the preconditions we have
to maintain.


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Subject: Re: [PATCH v2 1/2] treewide: remove unused address argument from
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Subject: Re: [PATCH v2 1/2] treewide: remove unused address argument from
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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 5/6] parisc: wire up rseq system call
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Cc: Parisc List <linux-parisc@vger.kernel.org>,
        "James E.J. Bottomley" <jejb@parisc-linux.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        gregkh <gregkh@linuxfoundation.org>,
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To: Arnd Bergmann <arnd@arndb.de>, Firoz Khan <firoz.khan@linaro.org>
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On 12.10.2018 13:52, Arnd Bergmann wrote:
> On Fri, Oct 12, 2018 at 12:16 PM Firoz Khan <firoz.khan@linaro.org> wrote:
>>
>> Hi Arnd,
>>
>> On Fri, 12 Oct 2018 at 15:26, Arnd Bergmann <arnd@arndb.de> wrote:
>>>
>>> On Fri, Oct 12, 2018 at 11:45 AM Firoz Khan <firoz.khan@linaro.org> wrote:
>>>>
>>>> Wire up rseq system call requires an architecture specific
>>>> implementation as it not present now.
>>>>
>>>> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
>>>
>>> Didn't we conclude that this should be skipped?
>>
>> Helge told "I prefer to keep the warning for rseq for now.
>> It reminds me that we still may want the rseq syscall.
>> If the warning is a problem, you may simply add the __IGNORE_rseq define."
>>
>> I chose this option; I feel it looks clean
>> "# rseq requires an architecture specific implementation" in syscall.tbl
>> hopefully remind him to add rseq syscall implementation in this architecture.
> 
> But he said he wants the warning instead.

Correct.
Firoz, please simply drop this patch completely.
That way one will see generated warnings about the missing rseq (which is what
we want).

Thanks,
Helge


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Newsgroups: gmane.linux.ports.riscv,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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To: Joel Fernandes <joel@joelfernandes.org>
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On Fri, Oct 12, 2018 at 09:57:19AM -0700, Joel Fernandes wrote:
> On Fri, Oct 12, 2018 at 04:19:46PM +0300, Kirill A. Shutemov wrote:
> > On Fri, Oct 12, 2018 at 05:50:46AM -0700, Joel Fernandes wrote:
> > > On Fri, Oct 12, 2018 at 02:30:56PM +0300, Kirill A. Shutemov wrote:
> > > > On Thu, Oct 11, 2018 at 06:37:56PM -0700, Joel Fernandes (Google) wrote:
> > > > > Android needs to mremap large regions of memory during memory management
> > > > > related operations. The mremap system call can be really slow if THP is
> > > > > not enabled. The bottleneck is move_page_tables, which is copying each
> > > > > pte at a time, and can be really slow across a large map. Turning on THP
> > > > > may not be a viable option, and is not for us. This patch speeds up the
> > > > > performance for non-THP system by copying at the PMD level when possible.
> > > > > 
> > > > > The speed up is three orders of magnitude. On a 1GB mremap, the mremap
> > > > > completion times drops from 160-250 millesconds to 380-400 microseconds.
> > > > > 
> > > > > Before:
> > > > > Total mremap time for 1GB data: 242321014 nanoseconds.
> > > > > Total mremap time for 1GB data: 196842467 nanoseconds.
> > > > > Total mremap time for 1GB data: 167051162 nanoseconds.
> > > > > 
> > > > > After:
> > > > > Total mremap time for 1GB data: 385781 nanoseconds.
> > > > > Total mremap time for 1GB data: 388959 nanoseconds.
> > > > > Total mremap time for 1GB data: 402813 nanoseconds.
> > > > > 
> > > > > Incase THP is enabled, the optimization is skipped. I also flush the
> > > > > tlb every time we do this optimization since I couldn't find a way to
> > > > > determine if the low-level PTEs are dirty. It is seen that the cost of
> > > > > doing so is not much compared the improvement, on both x86-64 and arm64.
> > > > 
> > > > I looked into the code more and noticed move_pte() helper called from
> > > > move_ptes(). It changes PTE entry to suite new address.
> > > > 
> > > > It is only defined in non-trivial way on Sparc. I don't know much about
> > > > Sparc and it's hard for me to say if the optimization will break anything
> > > > there.
> > > 
> > > Sparc's move_pte seems to be flushing the D-cache to prevent aliasing. It is
> > > not modifying the PTE itself AFAICS:
> > > 
> > > #ifdef DCACHE_ALIASING_POSSIBLE
> > > #define __HAVE_ARCH_MOVE_PTE
> > > #define move_pte(pte, prot, old_addr, new_addr)                         \
> > > ({                                                                      \
> > >         pte_t newpte = (pte);                                           \
> > >         if (tlb_type != hypervisor && pte_present(pte)) {               \
> > >                 unsigned long this_pfn = pte_pfn(pte);                  \
> > >                                                                         \
> > >                 if (pfn_valid(this_pfn) &&                              \
> > >                     (((old_addr) ^ (new_addr)) & (1 << 13)))            \
> > >                         flush_dcache_page_all(current->mm,              \
> > >                                               pfn_to_page(this_pfn));   \
> > >         }                                                               \
> > >         newpte;                                                         \
> > > })
> > > #endif
> > > 
> > > If its an issue, then how do transparent huge pages work on Sparc?  I don't
> > > see the huge page code (move_huge_pages) during mremap doing anything special
> > > for Sparc architecture when moving PMDs..
> > 
> > My *guess* is that it will work fine on Sparc as it apprarently it only
> > cares about change in bit 13 of virtual address. It will never happen for
> > huge pages or when PTE page tables move.
> > 
> > But I just realized that the problem is bigger: since we pass new_addr to
> > the set_pte_at() we would need to audit all implementations that they are
> > safe with just moving PTE page table.
> > 
> > I would rather go with per-architecture enabling. It's much safer.
> 
> I'm Ok with the per-arch enabling, I agree its safer. So I should be adding a
> a new __HAVE_ARCH_MOVE_PMD right, or did you have a better name for that?

I believe Kconfig option is more cononical way to do this nowadays.
So CONFIG_HAVE_ARCH_MOVE_PMD, I guess. Or CONFIG_HAVE_MOVE_PMD.
An arch that supports it would select the option.

> Also, do you feel we should still need to remove the address argument from
> set_pte_alloc? Or should we leave that alone if we do per-arch?
> I figure I spent a bunch of time on that already anyway, and its a clean up
> anyway, so may as well do it. But perhaps that "pte_alloc cleanup" can then
> be a separate patch independent of this series?

Yeah. The cleanup makes sense anyway.

-- 
 Kirill A. Shutemov

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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.riscv,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.sparc,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
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To: Anton Ivanov <anton.ivanov@kot-begemot.co.uk>
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On Fri, Oct 12, 2018 at 05:42:24PM +0100, Anton Ivanov wrote:
> =

> On 10/12/18 3:48 PM, Anton Ivanov wrote:
> > On 12/10/2018 15:37, Kirill A. Shutemov wrote:
> > > On Fri, Oct 12, 2018 at 03:09:49PM +0100, Anton Ivanov wrote:
> > > > On 10/12/18 2:37 AM, Joel Fernandes (Google) wrote:
> > > > > Android needs to mremap large regions of memory during
> > > > > memory management
> > > > > related operations. The mremap system call can be really
> > > > > slow if THP is
> > > > > not enabled. The bottleneck is move_page_tables, which is copying=
 each
> > > > > pte at a time, and can be really slow across a large map.
> > > > > Turning on THP
> > > > > may not be a viable option, and is not for us. This patch
> > > > > speeds up the
> > > > > performance for non-THP system by copying at the PMD level
> > > > > when possible.
> > > > > =

> > > > > The speed up is three orders of magnitude. On a 1GB mremap, the m=
remap
> > > > > completion times drops from 160-250 millesconds to 380-400
> > > > > microseconds.
> > > > > =

> > > > > Before:
> > > > > Total mremap time for 1GB data: 242321014 nanoseconds.
> > > > > Total mremap time for 1GB data: 196842467 nanoseconds.
> > > > > Total mremap time for 1GB data: 167051162 nanoseconds.
> > > > > =

> > > > > After:
> > > > > Total mremap time for 1GB data: 385781 nanoseconds.
> > > > > Total mremap time for 1GB data: 388959 nanoseconds.
> > > > > Total mremap time for 1GB data: 402813 nanoseconds.
> > > > > =

> > > > > Incase THP is enabled, the optimization is skipped. I also flush =
the
> > > > > tlb every time we do this optimization since I couldn't find a wa=
y to
> > > > > determine if the low-level PTEs are dirty. It is seen that the co=
st of
> > > > > doing so is not much compared the improvement, on both
> > > > > x86-64 and arm64.
> > > > > =

> > > > > Cc: minchan@kernel.org
> > > > > Cc: pantin@google.com
> > > > > Cc: hughd@google.com
> > > > > Cc: lokeshgidra@google.com
> > > > > Cc: dancol@google.com
> > > > > Cc: mhocko@kernel.org
> > > > > Cc: kirill@shutemov.name
> > > > > Cc: akpm@linux-foundation.org
> > > > > Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
> > > > > ---
> > > > > =A0=A0 mm/mremap.c | 62
> > > > > +++++++++++++++++++++++++++++++++++++++++++++++++++++
> > > > > =A0=A0 1 file changed, 62 insertions(+)
> > > > > =

> > > > > diff --git a/mm/mremap.c b/mm/mremap.c
> > > > > index 9e68a02a52b1..d82c485822ef 100644
> > > > > --- a/mm/mremap.c
> > > > > +++ b/mm/mremap.c
> > > > > @@ -191,6 +191,54 @@ static void move_ptes(struct
> > > > > vm_area_struct *vma, pmd_t *old_pmd,
> > > > > =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 drop_rmap_locks(vma);
> > > > > =A0=A0 }
> > > > > +static bool move_normal_pmd(struct vm_area_struct *vma,
> > > > > unsigned long old_addr,
> > > > > +=A0=A0=A0=A0=A0=A0=A0=A0=A0 unsigned long new_addr, unsigned lon=
g old_end,
> > > > > +=A0=A0=A0=A0=A0=A0=A0=A0=A0 pmd_t *old_pmd, pmd_t *new_pmd, bool=
 *need_flush)
> > > > > +{
> > > > > +=A0=A0=A0 spinlock_t *old_ptl, *new_ptl;
> > > > > +=A0=A0=A0 struct mm_struct *mm =3D vma->vm_mm;
> > > > > +
> > > > > +=A0=A0=A0 if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> > > > > +=A0=A0=A0=A0=A0=A0=A0 || old_end - old_addr < PMD_SIZE)
> > > > > +=A0=A0=A0=A0=A0=A0=A0 return false;
> > > > > +
> > > > > +=A0=A0=A0 /*
> > > > > +=A0=A0=A0=A0 * The destination pmd shouldn't be established, fre=
e_pgtables()
> > > > > +=A0=A0=A0=A0 * should have release it.
> > > > > +=A0=A0=A0=A0 */
> > > > > +=A0=A0=A0 if (WARN_ON(!pmd_none(*new_pmd)))
> > > > > +=A0=A0=A0=A0=A0=A0=A0 return false;
> > > > > +
> > > > > +=A0=A0=A0 /*
> > > > > +=A0=A0=A0=A0 * We don't have to worry about the ordering of src =
and dst
> > > > > +=A0=A0=A0=A0 * ptlocks because exclusive mmap_sem prevents deadl=
ock.
> > > > > +=A0=A0=A0=A0 */
> > > > > +=A0=A0=A0 old_ptl =3D pmd_lock(vma->vm_mm, old_pmd);
> > > > > +=A0=A0=A0 if (old_ptl) {
> > > > > +=A0=A0=A0=A0=A0=A0=A0 pmd_t pmd;
> > > > > +
> > > > > +=A0=A0=A0=A0=A0=A0=A0 new_ptl =3D pmd_lockptr(mm, new_pmd);
> > > > > +=A0=A0=A0=A0=A0=A0=A0 if (new_ptl !=3D old_ptl)
> > > > > +=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 spin_lock_nested(new_ptl, SING=
LE_DEPTH_NESTING);
> > > > > +
> > > > > +=A0=A0=A0=A0=A0=A0=A0 /* Clear the pmd */
> > > > > +=A0=A0=A0=A0=A0=A0=A0 pmd =3D *old_pmd;
> > > > > +=A0=A0=A0=A0=A0=A0=A0 pmd_clear(old_pmd);
> > > > > +
> > > > > +=A0=A0=A0=A0=A0=A0=A0 VM_BUG_ON(!pmd_none(*new_pmd));
> > > > > +
> > > > > +=A0=A0=A0=A0=A0=A0=A0 /* Set the new pmd */
> > > > > +=A0=A0=A0=A0=A0=A0=A0 set_pmd_at(mm, new_addr, new_pmd, pmd);
> > > > UML does not have set_pmd_at at all
> > > Every architecture does. :)
> > =

> > I tried to build it patching vs 4.19-rc before I made this statement and
> > ran into that.
> > =

> > Presently it does not.
> > =

> > https://elixir.bootlin.com/linux/v4.19-rc7/ident/set_pmd_at - UML is not
> > on the list.
> =

> Once this problem as well as the omissions in the include changes for UML=
 in
> patch one have been fixed it appears to be working.
> =

> What it needs is attached.

Well, the optization is only suitable for arch that has 3 or more levels
of page tables. Otherwise it will not have [non-folded] pmd.

And in this case arch/um already should have set_pmd_at(), see
3_LEVEL_PGTABLES.

To port on 2-level paging, it has to be handled on pgd level. It
complicates the code and will not bring much value.

-- =

 Kirill A. Shutemov

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From: "Joel Fernandes (Google)" <joel@joelfernandes.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 0/4] Add support for fast mremap
Date: Fri, 12 Oct 2018 18:31:56 -0700
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Peter Zijlstra <peterz@infradead.org>,
 Catalin Marinas <catalin.marinas@arm.com>,
 Dave Hansen <dave.hansen@linux.intel.com>, Will Deacon <will.deacon@arm.com>,
 mhocko@kernel.org, linux-mm@kvack.org, lokeshgidra@google.com,
 "Joel Fernandes \(Google\)" <joel@joelfernandes.org>,
 linux-riscv@lists.infradead.org, elfring@users.sourceforge.net,
 Jonas Bonn <jonas@southpole.se>, kvmarm@lists.cs.columbia.edu,
 dancol@google.com, Yoshinori Sato <ysato@users.sourceforge.jp>,
 sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org,
 linux-hexagon@vger.kernel.org, Helge Deller <deller@gmx.de>,
 "maintainer:X86 ARCHITECTURE 32-BIT AND 64-BIT" <x86@kernel.org>,
 hughd@google.com, "James E.J. Bottomley" <jejb@parisc-linux.org>,
 kasan-dev@googlegroups.com, anton.ivanov@kot-begem
To: linux-kernel@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel.arc:4542 gmane.linux.kernel:2898076 gmane.linux.ports.mips.general:67067 gmane.linux.ports.ia64:29393 gmane.linux.ports.sh.devel:57640 gmane.linux.kernel.mm:205235 gmane.linux.ports.riscv:1062 gmane.comp.emulators.kvm.arm.devel:19453 gmane.linux.ports.sparc:28567 gmane.linux.ports.hexagon:1915 gmane.linux.ports.parisc:29168 gmane.linux.ports.alpha:5317 gmane.linux.ports.ppc64.devel:164167
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4542>

Hi,
Here is the latest "fast mremap" series. The main change in this submission is
to enable the fast mremap optimization on a per-architecture basis to prevent
possible issues with architectures that may not behave well with such change.

x86: select HAVE_MOVE_PMD for faster mremap (v1)

arm64: select HAVE_MOVE_PMD for faster mremap (v1)

mm: speed up mremap by 500x on large regions (v2)
v1->v2: Added support for per-arch enablement (Kirill Shutemov)

treewide: remove unused address argument from pte_alloc functions (v2)
v1->v2: fix arch/um/ prototype which was missed in v1 (Anton Ivanov)
        update changelog with manual fixups for m68k and microblaze.

Joel Fernandes (Google) (4):
  treewide: remove unused address argument from pte_alloc functions (v2)
  mm: speed up mremap by 500x on large regions (v2)
  arm64: select HAVE_MOVE_PMD for faster mremap (v1)
  x86: select HAVE_MOVE_PMD for faster mremap (v1)

 arch/Kconfig                                 |  5 ++
 arch/alpha/include/asm/pgalloc.h             |  6 +-
 arch/arc/include/asm/pgalloc.h               |  5 +-
 arch/arm/include/asm/pgalloc.h               |  4 +-
 arch/arm64/Kconfig                           |  1 +
 arch/arm64/include/asm/pgalloc.h             |  4 +-
 arch/hexagon/include/asm/pgalloc.h           |  6 +-
 arch/ia64/include/asm/pgalloc.h              |  5 +-
 arch/m68k/include/asm/mcf_pgalloc.h          |  8 +--
 arch/m68k/include/asm/motorola_pgalloc.h     |  4 +-
 arch/m68k/include/asm/sun3_pgalloc.h         |  6 +-
 arch/microblaze/include/asm/pgalloc.h        | 19 +-----
 arch/microblaze/mm/pgtable.c                 |  3 +-
 arch/mips/include/asm/pgalloc.h              |  6 +-
 arch/nds32/include/asm/pgalloc.h             |  5 +-
 arch/nios2/include/asm/pgalloc.h             |  6 +-
 arch/openrisc/include/asm/pgalloc.h          |  5 +-
 arch/openrisc/mm/ioremap.c                   |  3 +-
 arch/parisc/include/asm/pgalloc.h            |  4 +-
 arch/powerpc/include/asm/book3s/32/pgalloc.h |  4 +-
 arch/powerpc/include/asm/book3s/64/pgalloc.h | 12 ++--
 arch/powerpc/include/asm/nohash/32/pgalloc.h |  4 +-
 arch/powerpc/include/asm/nohash/64/pgalloc.h |  6 +-
 arch/powerpc/mm/pgtable-book3s64.c           |  2 +-
 arch/powerpc/mm/pgtable_32.c                 |  4 +-
 arch/riscv/include/asm/pgalloc.h             |  6 +-
 arch/s390/include/asm/pgalloc.h              |  4 +-
 arch/sh/include/asm/pgalloc.h                |  6 +-
 arch/sparc/include/asm/pgalloc_32.h          |  5 +-
 arch/sparc/include/asm/pgalloc_64.h          |  6 +-
 arch/sparc/mm/init_64.c                      |  6 +-
 arch/sparc/mm/srmmu.c                        |  4 +-
 arch/um/include/asm/pgalloc.h                |  4 +-
 arch/um/kernel/mem.c                         |  4 +-
 arch/unicore32/include/asm/pgalloc.h         |  4 +-
 arch/x86/Kconfig                             |  1 +
 arch/x86/include/asm/pgalloc.h               |  4 +-
 arch/x86/mm/pgtable.c                        |  4 +-
 arch/xtensa/include/asm/pgalloc.h            |  8 +--
 include/linux/mm.h                           | 13 ++--
 mm/huge_memory.c                             |  8 +--
 mm/kasan/kasan_init.c                        |  2 +-
 mm/memory.c                                  | 17 +++--
 mm/migrate.c                                 |  2 +-
 mm/mremap.c                                  | 67 +++++++++++++++++++-
 mm/userfaultfd.c                             |  2 +-
 virt/kvm/arm/mmu.c                           |  2 +-
 47 files changed, 169 insertions(+), 147 deletions(-)

-- 
2.19.0.605.g01d371f741-goog

From - Thu Nov 08 21:42:14 2018
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From: "Joel Fernandes (Google)" <joel@joelfernandes.org>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
Date: Fri, 12 Oct 2018 18:31:58 -0700
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Peter Zijlstra <peterz@infradead.org>,
 Catalin Marinas <catalin.marinas@arm.com>,
 Dave Hansen <dave.hansen@linux.intel.com>, Will Deacon <will.deacon@arm.com>,
 mhocko@kernel.org, linux-mm@kvack.org, lokeshgidra@google.com,
 "Joel Fernandes \(Google\)" <joel@joelfernandes.org>,
 linux-riscv@lists.infradead.org, elfring@users.sourceforge.net,
 Jonas Bonn <jonas@southpole.se>, kvmarm@lists.cs.columbia.edu,
 dancol@google.com, Yoshinori Sato <ysato@users.sourceforge.jp>,
 sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org,
 linux-hexagon@vger.kernel.org, Helge Deller <deller@gmx.de>,
 "maintainer:X86 ARCHITECTURE 32-BIT AND 64-BIT" <x86@kernel.org>,
 hughd@google.com, "James E.J. Bottomley" <jejb@parisc-linux.org>,
 kasan-dev@googlegroups.com, anton.ivanov@kot-begem
To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/1063>

Android needs to mremap large regions of memory during memory management
related operations. The mremap system call can be really slow if THP is
not enabled. The bottleneck is move_page_tables, which is copying each
pte at a time, and can be really slow across a large map. Turning on THP
may not be a viable option, and is not for us. This patch speeds up the
performance for non-THP system by copying at the PMD level when possible.

The speed up is three orders of magnitude. On a 1GB mremap, the mremap
completion times drops from 160-250 millesconds to 380-400 microseconds.

Before:
Total mremap time for 1GB data: 242321014 nanoseconds.
Total mremap time for 1GB data: 196842467 nanoseconds.
Total mremap time for 1GB data: 167051162 nanoseconds.

After:
Total mremap time for 1GB data: 385781 nanoseconds.
Total mremap time for 1GB data: 388959 nanoseconds.
Total mremap time for 1GB data: 402813 nanoseconds.

Incase THP is enabled, the optimization is skipped. I also flush the
tlb every time we do this optimization since I couldn't find a way to
determine if the low-level PTEs are dirty. It is seen that the cost of
doing so is not much compared the improvement, on both x86-64 and arm64.

Cc: minchan@kernel.org
Cc: pantin@google.com
Cc: hughd@google.com
Cc: lokeshgidra@google.com
Cc: dancol@google.com
Cc: mhocko@kernel.org
Cc: kirill@shutemov.name
Cc: akpm@linux-foundation.org
Cc: kernel-team@android.com
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---
 arch/Kconfig |  5 ++++
 mm/mremap.c  | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+)

diff --git a/arch/Kconfig b/arch/Kconfig
index 6801123932a5..9724fe39884f 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -518,6 +518,11 @@ config HAVE_IRQ_TIME_ACCOUNTING
 	  Archs need to ensure they use a high enough resolution clock to
 	  support irq time accounting and then call enable_sched_clock_irqtime().
 
+config HAVE_MOVE_PMD
+	bool
+	help
+	  Archs that select this are able to move page tables at the PMD level.
+
 config HAVE_ARCH_TRANSPARENT_HUGEPAGE
 	bool
 
diff --git a/mm/mremap.c b/mm/mremap.c
index 9e68a02a52b1..2fd163cff406 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 		drop_rmap_locks(vma);
 }
 
+static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
+		  unsigned long new_addr, unsigned long old_end,
+		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
+{
+	spinlock_t *old_ptl, *new_ptl;
+	struct mm_struct *mm = vma->vm_mm;
+
+	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
+	    || old_end - old_addr < PMD_SIZE)
+		return false;
+
+	/*
+	 * The destination pmd shouldn't be established, free_pgtables()
+	 * should have release it.
+	 */
+	if (WARN_ON(!pmd_none(*new_pmd)))
+		return false;
+
+	/*
+	 * We don't have to worry about the ordering of src and dst
+	 * ptlocks because exclusive mmap_sem prevents deadlock.
+	 */
+	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
+	if (old_ptl) {
+		pmd_t pmd;
+
+		new_ptl = pmd_lockptr(mm, new_pmd);
+		if (new_ptl != old_ptl)
+			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
+
+		/* Clear the pmd */
+		pmd = *old_pmd;
+		pmd_clear(old_pmd);
+
+		VM_BUG_ON(!pmd_none(*new_pmd));
+
+		/* Set the new pmd */
+		set_pmd_at(mm, new_addr, new_pmd, pmd);
+		if (new_ptl != old_ptl)
+			spin_unlock(new_ptl);
+		spin_unlock(old_ptl);
+
+		*need_flush = true;
+		return true;
+	}
+	return false;
+}
+
 unsigned long move_page_tables(struct vm_area_struct *vma,
 		unsigned long old_addr, struct vm_area_struct *new_vma,
 		unsigned long new_addr, unsigned long len,
@@ -239,7 +287,24 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
 			split_huge_pmd(vma, old_pmd, old_addr);
 			if (pmd_trans_unstable(old_pmd))
 				continue;
+		} else if (extent == PMD_SIZE && IS_ENABLED(CONFIG_HAVE_MOVE_PMD)) {
+			/*
+			 * If the extent is PMD-sized, try to speed the move by
+			 * moving at the PMD level if possible.
+			 */
+			bool moved;
+
+			if (need_rmap_locks)
+				take_rmap_locks(vma);
+			moved = move_normal_pmd(vma, old_addr, new_addr,
+					old_end, old_pmd, new_pmd,
+					&need_flush);
+			if (need_rmap_locks)
+				drop_rmap_locks(vma);
+			if (moved)
+				continue;
 		}
+
 		if (pte_alloc(new_vma->vm_mm, new_pmd))
 			break;
 		next = (new_addr + PMD_SIZE) & PMD_MASK;
-- 
2.19.0.605.g01d371f741-goog

From - Thu Nov 08 21:42:14 2018
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From: "Joel Fernandes (Google)" <joel@joelfernandes.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 3/4] arm64: select HAVE_MOVE_PMD for faster mremap (v1)
Date: Fri, 12 Oct 2018 18:31:59 -0700
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Approved: news@gmane.org
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To: linux-kernel@vger.kernel.org
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Moving page-tables at the PMD-level on arm64 is known to be safe. Enable
this option so that we can do fast mremap when possible.

Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---
 arch/arm64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 1b1a0e95c751..5d7c35c6f90c 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -135,6 +135,7 @@ config ARM64
 	select HAVE_IRQ_TIME_ACCOUNTING
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP if NUMA
+	select HAVE_MOVE_PMD
 	select HAVE_NMI
 	select HAVE_PATA_PLATFORM
 	select HAVE_PERF_EVENTS
-- 
2.19.0.605.g01d371f741-goog

From - Thu Nov 08 21:42:14 2018
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Subject: [PATCH 1/4] treewide: remove unused address argument from pte_alloc
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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To: linux-kernel@vger.kernel.org
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Xref: news.gmane.org gmane.linux.ports.riscv:1065 gmane.linux.kernel:2898079 gmane.linux.ports.mips.general:67070 gmane.linux.ports.ia64:29396 gmane.linux.ports.sh.devel:57643 gmane.linux.kernel.mm:205238 gmane.comp.emulators.kvm.arm.devel:19456 gmane.linux.ports.sparc:28570 gmane.linux.ports.hexagon:1918 gmane.linux.kernel.arc:4545 gmane.linux.ports.parisc:29171 gmane.linux.ports.alpha:5320 gmane.linux.ports.ppc64.devel:164170
Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/1065>

This series speeds up mremap(2) syscall by copying page tables at the
PMD level even for non-THP systems. There is concern that the extra
'address' argument that mremap passes to pte_alloc may do something
subtle architecture related in the future that may make the scheme not
work.  Also we find that there is no point in passing the 'address' to
pte_alloc since its unused. So this patch therefore removes this
argument tree-wide resulting in a nice negative diff as well. Also
ensuring along the way that the enabled architectures do not do anything
funky with 'address' argument that goes unnoticed by the optimization.

Build and boot tested on x86-64. Build tested on arm64.

The changes were obtained by applying the following Coccinelle script.
(thanks Julia for answering all Coccinelle questions!).
Following fix ups were done manually:
* Removal of address argument from  pte_fragment_alloc
* Removal of pte_alloc_one_fast definitions from m68k and microblaze.

// Options: --include-headers --no-includes
// Note: I split the 'identifier fn' line, so if you are manually
// running it, please unsplit it so it runs for you.

virtual patch

@pte_alloc_func_def depends on patch exists@
identifier E2;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
type T2;
@@

 fn(...
- , T2 E2
 )
 { ... }

@pte_alloc_func_proto_noarg depends on patch exists@
type T1, T2, T3, T4;
identifier fn =~ "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

(
- T3 fn(T1, T2);
+ T3 fn(T1);
|
- T3 fn(T1, T2, T4);
+ T3 fn(T1, T2);
)

@pte_alloc_func_proto depends on patch exists@
identifier E1, E2, E4;
type T1, T2, T3, T4;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

(
- T3 fn(T1 E1, T2 E2);
+ T3 fn(T1 E1);
|
- T3 fn(T1 E1, T2 E2, T4 E4);
+ T3 fn(T1 E1, T2 E2);
)

@pte_alloc_func_call depends on patch exists@
expression E2;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

 fn(...
-,  E2
 )

@pte_alloc_macro depends on patch exists@
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
identifier a, b, c;
expression e;
position p;
@@

(
- #define fn(a, b, c) e
+ #define fn(a, b) e
|
- #define fn(a, b) e
+ #define fn(a) e
)

Suggested-by: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---
 arch/alpha/include/asm/pgalloc.h             |  6 +++---
 arch/arc/include/asm/pgalloc.h               |  5 ++---
 arch/arm/include/asm/pgalloc.h               |  4 ++--
 arch/arm64/include/asm/pgalloc.h             |  4 ++--
 arch/hexagon/include/asm/pgalloc.h           |  6 ++----
 arch/ia64/include/asm/pgalloc.h              |  5 ++---
 arch/m68k/include/asm/mcf_pgalloc.h          |  8 ++------
 arch/m68k/include/asm/motorola_pgalloc.h     |  4 ++--
 arch/m68k/include/asm/sun3_pgalloc.h         |  6 ++----
 arch/microblaze/include/asm/pgalloc.h        | 19 ++-----------------
 arch/microblaze/mm/pgtable.c                 |  3 +--
 arch/mips/include/asm/pgalloc.h              |  6 ++----
 arch/nds32/include/asm/pgalloc.h             |  5 ++---
 arch/nios2/include/asm/pgalloc.h             |  6 ++----
 arch/openrisc/include/asm/pgalloc.h          |  5 ++---
 arch/openrisc/mm/ioremap.c                   |  3 +--
 arch/parisc/include/asm/pgalloc.h            |  4 ++--
 arch/powerpc/include/asm/book3s/32/pgalloc.h |  4 ++--
 arch/powerpc/include/asm/book3s/64/pgalloc.h | 12 +++++-------
 arch/powerpc/include/asm/nohash/32/pgalloc.h |  4 ++--
 arch/powerpc/include/asm/nohash/64/pgalloc.h |  6 ++----
 arch/powerpc/mm/pgtable-book3s64.c           |  2 +-
 arch/powerpc/mm/pgtable_32.c                 |  4 ++--
 arch/riscv/include/asm/pgalloc.h             |  6 ++----
 arch/s390/include/asm/pgalloc.h              |  4 ++--
 arch/sh/include/asm/pgalloc.h                |  6 ++----
 arch/sparc/include/asm/pgalloc_32.h          |  5 ++---
 arch/sparc/include/asm/pgalloc_64.h          |  6 ++----
 arch/sparc/mm/init_64.c                      |  6 ++----
 arch/sparc/mm/srmmu.c                        |  4 ++--
 arch/um/include/asm/pgalloc.h                |  4 ++--
 arch/um/kernel/mem.c                         |  4 ++--
 arch/unicore32/include/asm/pgalloc.h         |  4 ++--
 arch/x86/include/asm/pgalloc.h               |  4 ++--
 arch/x86/mm/pgtable.c                        |  4 ++--
 arch/xtensa/include/asm/pgalloc.h            |  8 +++-----
 include/linux/mm.h                           | 13 ++++++-------
 mm/huge_memory.c                             |  8 ++++----
 mm/kasan/kasan_init.c                        |  2 +-
 mm/memory.c                                  | 17 ++++++++---------
 mm/migrate.c                                 |  2 +-
 mm/mremap.c                                  |  2 +-
 mm/userfaultfd.c                             |  2 +-
 virt/kvm/arm/mmu.c                           |  2 +-
 44 files changed, 97 insertions(+), 147 deletions(-)

diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
index ab3e3a8638fb..02f9f91bb4f0 100644
--- a/arch/alpha/include/asm/pgalloc.h
+++ b/arch/alpha/include/asm/pgalloc.h
@@ -52,7 +52,7 @@ pmd_free(struct mm_struct *mm, pmd_t *pmd)
 }
 
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
 	return pte;
@@ -65,9 +65,9 @@ pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pte_alloc_one(struct mm_struct *mm)
 {
-	pte_t *pte = pte_alloc_one_kernel(mm, address);
+	pte_t *pte = pte_alloc_one_kernel(mm);
 	struct page *page;
 
 	if (!pte)
diff --git a/arch/arc/include/asm/pgalloc.h b/arch/arc/include/asm/pgalloc.h
index 3749234b7419..9c9b5a5ebf2e 100644
--- a/arch/arc/include/asm/pgalloc.h
+++ b/arch/arc/include/asm/pgalloc.h
@@ -90,8 +90,7 @@ static inline int __get_order_pte(void)
 	return get_order(PTRS_PER_PTE * sizeof(pte_t));
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -102,7 +101,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pte_alloc_one(struct mm_struct *mm)
 {
 	pgtable_t pte_pg;
 	struct page *page;
diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
index 2d7344f0e208..17ab72f0cc4e 100644
--- a/arch/arm/include/asm/pgalloc.h
+++ b/arch/arm/include/asm/pgalloc.h
@@ -81,7 +81,7 @@ static inline void clean_pte_table(pte_t *pte)
  *  +------------+
  */
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -93,7 +93,7 @@ pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h
index 2e05bcd944c8..52fa47c73bf0 100644
--- a/arch/arm64/include/asm/pgalloc.h
+++ b/arch/arm64/include/asm/pgalloc.h
@@ -91,13 +91,13 @@ extern pgd_t *pgd_alloc(struct mm_struct *mm);
 extern void pgd_free(struct mm_struct *mm, pgd_t *pgdp);
 
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(PGALLOC_GFP);
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/hexagon/include/asm/pgalloc.h b/arch/hexagon/include/asm/pgalloc.h
index eeebf862c46c..d36183887b60 100644
--- a/arch/hexagon/include/asm/pgalloc.h
+++ b/arch/hexagon/include/asm/pgalloc.h
@@ -59,8 +59,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long) pgd);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-					 unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
@@ -75,8 +74,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 }
 
 /* _kernel variant gets to use a different allocator */
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	gfp_t flags =  GFP_KERNEL | __GFP_ZERO;
 	return (pte_t *) __get_free_page(flags);
diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
index 3ee5362f2661..c9e481023c25 100644
--- a/arch/ia64/include/asm/pgalloc.h
+++ b/arch/ia64/include/asm/pgalloc.h
@@ -83,7 +83,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
 	pmd_val(*pmd_entry) = __pa(pte);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	void *pg;
@@ -99,8 +99,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
 	return page;
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long addr)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return quicklist_alloc(0, GFP_KERNEL, NULL);
 }
diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h
index 12fe700632f4..4399d712f6db 100644
--- a/arch/m68k/include/asm/mcf_pgalloc.h
+++ b/arch/m68k/include/asm/mcf_pgalloc.h
@@ -12,8 +12,7 @@ extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 
 extern const char bad_pmd_string[];
 
-extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	unsigned long page = __get_free_page(GFP_DMA);
 
@@ -32,8 +31,6 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address)
 #define pmd_alloc_one_fast(mm, address) ({ BUG(); ((pmd_t *)1); })
 #define pmd_alloc_one(mm, address)      ({ BUG(); ((pmd_t *)2); })
 
-#define pte_alloc_one_fast(mm, addr) pte_alloc_one(mm, addr)
-
 #define pmd_populate(mm, pmd, page) (pmd_val(*pmd) = \
 	(unsigned long)(page_address(page)))
 
@@ -50,8 +47,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
 
 #define __pmd_free_tlb(tlb, pmd, address) do { } while (0)
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page = alloc_pages(GFP_DMA, 0);
 	pte_t *pte;
diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h
index 7859a86319cf..d04d9ba9b976 100644
--- a/arch/m68k/include/asm/motorola_pgalloc.h
+++ b/arch/m68k/include/asm/motorola_pgalloc.h
@@ -8,7 +8,7 @@
 extern pmd_t *get_pointer_table(void);
 extern int free_pointer_table(pmd_t *);
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -28,7 +28,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 	free_page((unsigned long) pte);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	pte_t *pte;
diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h
index 11485d38de4e..1456c5eecbd9 100644
--- a/arch/m68k/include/asm/sun3_pgalloc.h
+++ b/arch/m68k/include/asm/sun3_pgalloc.h
@@ -35,8 +35,7 @@ do {							\
 	tlb_remove_page((tlb), pte);			\
 } while (0)
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	unsigned long page = __get_free_page(GFP_KERNEL);
 
@@ -47,8 +46,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return (pte_t *) (page);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-					unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
         struct page *page = alloc_pages(GFP_KERNEL, 0);
 
diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
index 7c89390c0c13..f4cc9ffc449e 100644
--- a/arch/microblaze/include/asm/pgalloc.h
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -108,10 +108,9 @@ static inline void free_pgd_slow(pgd_t *pgd)
 #define pmd_alloc_one_fast(mm, address)	({ BUG(); ((pmd_t *)1); })
 #define pmd_alloc_one(mm, address)	({ BUG(); ((pmd_t *)2); })
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-		unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *ptepage;
 
@@ -132,20 +131,6 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 	return ptepage;
 }
 
-static inline pte_t *pte_alloc_one_fast(struct mm_struct *mm,
-		unsigned long address)
-{
-	unsigned long *ret;
-
-	ret = pte_quicklist;
-	if (ret != NULL) {
-		pte_quicklist = (unsigned long *)(*ret);
-		ret[0] = 0;
-		pgtable_cache_size--;
-	}
-	return (pte_t *)ret;
-}
-
 static inline void pte_free_fast(pte_t *pte)
 {
 	*(unsigned long **)pte = pte_quicklist;
diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c
index 7f525962cdfa..c2ce1e42b888 100644
--- a/arch/microblaze/mm/pgtable.c
+++ b/arch/microblaze/mm/pgtable.c
@@ -235,8 +235,7 @@ unsigned long iopa(unsigned long addr)
 	return pa;
 }
 
-__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-		unsigned long address)
+__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 	if (mem_init_done) {
diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
index 39b9f311c4ef..27808d9461f4 100644
--- a/arch/mips/include/asm/pgalloc.h
+++ b/arch/mips/include/asm/pgalloc.h
@@ -50,14 +50,12 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_pages((unsigned long)pgd, PGD_ORDER);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, PTE_ORDER);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/nds32/include/asm/pgalloc.h b/arch/nds32/include/asm/pgalloc.h
index 27448869131a..3c5fee5b5759 100644
--- a/arch/nds32/include/asm/pgalloc.h
+++ b/arch/nds32/include/asm/pgalloc.h
@@ -22,8 +22,7 @@ extern void pgd_free(struct mm_struct *mm, pgd_t * pgd);
 
 #define check_pgt_cache()		do { } while (0)
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long addr)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -34,7 +33,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return pte;
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	pgtable_t pte;
 
diff --git a/arch/nios2/include/asm/pgalloc.h b/arch/nios2/include/asm/pgalloc.h
index bb47d08c8ef7..3a149ead1207 100644
--- a/arch/nios2/include/asm/pgalloc.h
+++ b/arch/nios2/include/asm/pgalloc.h
@@ -37,8 +37,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_pages((unsigned long)pgd, PGD_ORDER);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -47,8 +46,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return pte;
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/openrisc/include/asm/pgalloc.h b/arch/openrisc/include/asm/pgalloc.h
index 8999b9226512..149c82ee4b8b 100644
--- a/arch/openrisc/include/asm/pgalloc.h
+++ b/arch/openrisc/include/asm/pgalloc.h
@@ -70,10 +70,9 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long)pgd);
 }
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-					 unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 	pte = alloc_pages(GFP_KERNEL, 0);
diff --git a/arch/openrisc/mm/ioremap.c b/arch/openrisc/mm/ioremap.c
index 2175e4bfd9fc..24fb1021c75a 100644
--- a/arch/openrisc/mm/ioremap.c
+++ b/arch/openrisc/mm/ioremap.c
@@ -118,8 +118,7 @@ EXPORT_SYMBOL(iounmap);
  * the memblock infrastructure.
  */
 
-pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm,
-					 unsigned long address)
+pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index cf13275f7c6d..d05c678c77c4 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -122,7 +122,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
 #define pmd_pgtable(pmd) pmd_page(pmd)
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page = alloc_page(GFP_KERNEL|__GFP_ZERO);
 	if (!page)
@@ -135,7 +135,7 @@ pte_alloc_one(struct mm_struct *mm, unsigned long address)
 }
 
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
 	return pte;
diff --git a/arch/powerpc/include/asm/book3s/32/pgalloc.h b/arch/powerpc/include/asm/book3s/32/pgalloc.h
index 82e44b1a00ae..af9e13555d95 100644
--- a/arch/powerpc/include/asm/book3s/32/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/32/pgalloc.h
@@ -82,8 +82,8 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp,
 #define pmd_pgtable(pmd) pmd_page(pmd)
 #endif
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
-extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
+extern pgtable_t pte_alloc_one(struct mm_struct *mm);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h
index 391ed2c3b697..8f1d92e99fe5 100644
--- a/arch/powerpc/include/asm/book3s/64/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h
@@ -42,7 +42,7 @@ extern struct kmem_cache *pgtable_cache[];
 			pgtable_cache[(shift) - 1];	\
 		})
 
-extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int);
+extern pte_t *pte_fragment_alloc(struct mm_struct *, int);
 extern pmd_t *pmd_fragment_alloc(struct mm_struct *, unsigned long);
 extern void pte_fragment_free(unsigned long *, int);
 extern void pmd_fragment_free(unsigned long *);
@@ -192,16 +192,14 @@ static inline pgtable_t pmd_pgtable(pmd_t pmd)
 	return (pgtable_t)pmd_page_vaddr(pmd);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
-	return (pte_t *)pte_fragment_alloc(mm, address, 1);
+	return (pte_t *)pte_fragment_alloc(mm, 1);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-				      unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
-	return (pgtable_t)pte_fragment_alloc(mm, address, 0);
+	return (pgtable_t)pte_fragment_alloc(mm, 0);
 }
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
diff --git a/arch/powerpc/include/asm/nohash/32/pgalloc.h b/arch/powerpc/include/asm/nohash/32/pgalloc.h
index 8825953c225b..16623f53f0d4 100644
--- a/arch/powerpc/include/asm/nohash/32/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/32/pgalloc.h
@@ -83,8 +83,8 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp,
 #define pmd_pgtable(pmd) pmd_page(pmd)
 #endif
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
-extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
+extern pgtable_t pte_alloc_one(struct mm_struct *mm);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
diff --git a/arch/powerpc/include/asm/nohash/64/pgalloc.h b/arch/powerpc/include/asm/nohash/64/pgalloc.h
index e2d62d033708..2e7e0230edf4 100644
--- a/arch/powerpc/include/asm/nohash/64/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/64/pgalloc.h
@@ -96,14 +96,12 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 }
 
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-				      unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	pte_t *pte;
diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c
index 01d7c0f7c4f0..cff1d426ca6a 100644
--- a/arch/powerpc/mm/pgtable-book3s64.c
+++ b/arch/powerpc/mm/pgtable-book3s64.c
@@ -379,7 +379,7 @@ static pte_t *__alloc_for_ptecache(struct mm_struct *mm, int kernel)
 	return (pte_t *)ret;
 }
 
-pte_t *pte_fragment_alloc(struct mm_struct *mm, unsigned long vmaddr, int kernel)
+pte_t *pte_fragment_alloc(struct mm_struct *mm, int kernel)
 {
 	pte_t *pte;
 
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 120a49bfb9c6..b99a89cdcc5e 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -43,7 +43,7 @@ EXPORT_SYMBOL(ioremap_bot);	/* aka VMALLOC_END */
 
 extern char etext[], _stext[], _sinittext[], _einittext[];
 
-__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -57,7 +57,7 @@ __ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 	return pte;
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *ptepage;
 
diff --git a/arch/riscv/include/asm/pgalloc.h b/arch/riscv/include/asm/pgalloc.h
index a79ed5faff3a..94043cf83c90 100644
--- a/arch/riscv/include/asm/pgalloc.h
+++ b/arch/riscv/include/asm/pgalloc.h
@@ -82,15 +82,13 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 
 #endif /* __PAGETABLE_PMD_FOLDED */
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(
 		GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_ZERO);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index f0f9bcf94c03..ce2ca8cbd2ec 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -139,8 +139,8 @@ static inline void pmd_populate(struct mm_struct *mm,
 /*
  * page table entry allocation/free routines.
  */
-#define pte_alloc_one_kernel(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
-#define pte_alloc_one(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
+#define pte_alloc_one_kernel(mm) ((pte_t *)page_table_alloc(mm))
+#define pte_alloc_one(mm) ((pte_t *)page_table_alloc(mm))
 
 #define pte_free_kernel(mm, pte) page_table_free(mm, (unsigned long *) pte)
 #define pte_free(mm, pte) page_table_free(mm, (unsigned long *) pte)
diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h
index ed053a359ab7..8ad73cb31121 100644
--- a/arch/sh/include/asm/pgalloc.h
+++ b/arch/sh/include/asm/pgalloc.h
@@ -32,14 +32,12 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
 /*
  * Allocate and free page tables.
  */
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return quicklist_alloc(QUICK_PT, GFP_KERNEL, NULL);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-					unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	void *pg;
diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
index 90459481c6c7..282be50a4adf 100644
--- a/arch/sparc/include/asm/pgalloc_32.h
+++ b/arch/sparc/include/asm/pgalloc_32.h
@@ -58,10 +58,9 @@ void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
 void pmd_set(pmd_t *pmdp, pte_t *ptep);
 #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
+pgtable_t pte_alloc_one(struct mm_struct *mm);
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
 }
diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
index 874632f34f62..48abccba4991 100644
--- a/arch/sparc/include/asm/pgalloc_64.h
+++ b/arch/sparc/include/asm/pgalloc_64.h
@@ -60,10 +60,8 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 	kmem_cache_free(pgtable_cache, pmd);
 }
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-			    unsigned long address);
-pgtable_t pte_alloc_one(struct mm_struct *mm,
-			unsigned long address);
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
+pgtable_t pte_alloc_one(struct mm_struct *mm);
 void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
 void pte_free(struct mm_struct *mm, pgtable_t ptepage);
 
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index f396048a0d68..6133f21811e9 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -2921,8 +2921,7 @@ void __flush_tlb_all(void)
 			     : : "r" (pstate));
 }
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-			    unsigned long address)
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO);
 	pte_t *pte = NULL;
@@ -2933,8 +2932,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return pte;
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm,
-			unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO);
 	if (!page)
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index be9cb0065179..ce67a96e70c3 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -364,12 +364,12 @@ pgd_t *get_pgd_fast(void)
  * Alignments up to the page size are the same for physical and virtual
  * addresses of the nocache area.
  */
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	unsigned long pte;
 	struct page *page;
 
-	if ((pte = (unsigned long)pte_alloc_one_kernel(mm, address)) == 0)
+	if ((pte = (unsigned long)pte_alloc_one_kernel(mm)) == 0)
 		return NULL;
 	page = pfn_to_page(__nocache_pa(pte) >> PAGE_SHIFT);
 	if (!pgtable_page_ctor(page)) {
diff --git a/arch/um/include/asm/pgalloc.h b/arch/um/include/asm/pgalloc.h
index bf90b2aa2002..99eb5682792a 100644
--- a/arch/um/include/asm/pgalloc.h
+++ b/arch/um/include/asm/pgalloc.h
@@ -25,8 +25,8 @@
 extern pgd_t *pgd_alloc(struct mm_struct *);
 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
-extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *);
+extern pgtable_t pte_alloc_one(struct mm_struct *);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 3c0e470ea646..1f277191fbf3 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -197,7 +197,7 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long) pgd);
 }
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -205,7 +205,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 	return pte;
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/unicore32/include/asm/pgalloc.h b/arch/unicore32/include/asm/pgalloc.h
index f0fdb268f8f2..7cceabecf4e3 100644
--- a/arch/unicore32/include/asm/pgalloc.h
+++ b/arch/unicore32/include/asm/pgalloc.h
@@ -34,7 +34,7 @@ extern void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd);
  * Allocate one PTE table.
  */
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -46,7 +46,7 @@ pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
index fbd578daa66e..5068e85165b2 100644
--- a/arch/x86/include/asm/pgalloc.h
+++ b/arch/x86/include/asm/pgalloc.h
@@ -47,8 +47,8 @@ extern gfp_t __userpte_alloc_gfp;
 extern pgd_t *pgd_alloc(struct mm_struct *);
 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
-extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *);
+extern pgtable_t pte_alloc_one(struct mm_struct *);
 
 /* Should really implement gc for free page table pages. This could be
    done with a reference count in struct page. */
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 089e78c4effd..a2eff247377b 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -23,12 +23,12 @@ EXPORT_SYMBOL(physical_mask);
 
 gfp_t __userpte_alloc_gfp = PGALLOC_GFP | PGALLOC_USER_GFP;
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(PGALLOC_GFP & ~__GFP_ACCOUNT);
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/xtensa/include/asm/pgalloc.h b/arch/xtensa/include/asm/pgalloc.h
index 1065bc8bcae5..b3b388ff2f01 100644
--- a/arch/xtensa/include/asm/pgalloc.h
+++ b/arch/xtensa/include/asm/pgalloc.h
@@ -38,8 +38,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long)pgd);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					 unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *ptep;
 	int i;
@@ -52,13 +51,12 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return ptep;
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-					unsigned long addr)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	pte_t *pte;
 	struct page *page;
 
-	pte = pte_alloc_one_kernel(mm, addr);
+	pte = pte_alloc_one_kernel(mm);
 	if (!pte)
 		return NULL;
 	page = virt_to_page(pte);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0416a7204be3..43ce50edc499 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1789,8 +1789,8 @@ static inline void mm_inc_nr_ptes(struct mm_struct *mm) {}
 static inline void mm_dec_nr_ptes(struct mm_struct *mm) {}
 #endif
 
-int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address);
-int __pte_alloc_kernel(pmd_t *pmd, unsigned long address);
+int __pte_alloc(struct mm_struct *mm, pmd_t *pmd);
+int __pte_alloc_kernel(pmd_t *pmd);
 
 /*
  * The following ifdef needed to get the 4level-fixup.h header to work.
@@ -1928,18 +1928,17 @@ static inline void pgtable_page_dtor(struct page *page)
 	pte_unmap(pte);					\
 } while (0)
 
-#define pte_alloc(mm, pmd, address)			\
-	(unlikely(pmd_none(*(pmd))) && __pte_alloc(mm, pmd, address))
+#define pte_alloc(mm, pmd) (unlikely(pmd_none(*(pmd))) && __pte_alloc(mm, pmd))
 
 #define pte_alloc_map(mm, pmd, address)			\
-	(pte_alloc(mm, pmd, address) ? NULL : pte_offset_map(pmd, address))
+	(pte_alloc(mm, pmd) ? NULL : pte_offset_map(pmd, address))
 
 #define pte_alloc_map_lock(mm, pmd, address, ptlp)	\
-	(pte_alloc(mm, pmd, address) ?			\
+	(pte_alloc(mm, pmd) ?			\
 		 NULL : pte_offset_map_lock(mm, pmd, address, ptlp))
 
 #define pte_alloc_kernel(pmd, address)			\
-	((unlikely(pmd_none(*(pmd))) && __pte_alloc_kernel(pmd, address))? \
+	((unlikely(pmd_none(*(pmd))) && __pte_alloc_kernel(pmd))? \
 		NULL: pte_offset_kernel(pmd, address))
 
 #if USE_SPLIT_PMD_PTLOCKS
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 00704060b7f7..fd7e8714e5a1 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -558,7 +558,7 @@ static vm_fault_t __do_huge_pmd_anonymous_page(struct vm_fault *vmf,
 		return VM_FAULT_FALLBACK;
 	}
 
-	pgtable = pte_alloc_one(vma->vm_mm, haddr);
+	pgtable = pte_alloc_one(vma->vm_mm);
 	if (unlikely(!pgtable)) {
 		ret = VM_FAULT_OOM;
 		goto release;
@@ -683,7 +683,7 @@ vm_fault_t do_huge_pmd_anonymous_page(struct vm_fault *vmf)
 		struct page *zero_page;
 		bool set;
 		vm_fault_t ret;
-		pgtable = pte_alloc_one(vma->vm_mm, haddr);
+		pgtable = pte_alloc_one(vma->vm_mm);
 		if (unlikely(!pgtable))
 			return VM_FAULT_OOM;
 		zero_page = mm_get_huge_zero_page(vma->vm_mm);
@@ -772,7 +772,7 @@ vm_fault_t vmf_insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr,
 		return VM_FAULT_SIGBUS;
 
 	if (arch_needs_pgtable_deposit()) {
-		pgtable = pte_alloc_one(vma->vm_mm, addr);
+		pgtable = pte_alloc_one(vma->vm_mm);
 		if (!pgtable)
 			return VM_FAULT_OOM;
 	}
@@ -910,7 +910,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	if (!vma_is_anonymous(vma))
 		return 0;
 
-	pgtable = pte_alloc_one(dst_mm, addr);
+	pgtable = pte_alloc_one(dst_mm);
 	if (unlikely(!pgtable))
 		goto out;
 
diff --git a/mm/kasan/kasan_init.c b/mm/kasan/kasan_init.c
index 7a2a2f13f86f..272849cd2007 100644
--- a/mm/kasan/kasan_init.c
+++ b/mm/kasan/kasan_init.c
@@ -121,7 +121,7 @@ static int __ref zero_pmd_populate(pud_t *pud, unsigned long addr,
 			pte_t *p;
 
 			if (slab_is_available())
-				p = pte_alloc_one_kernel(&init_mm, addr);
+				p = pte_alloc_one_kernel(&init_mm);
 			else
 				p = early_alloc(PAGE_SIZE, NUMA_NO_NODE);
 			if (!p)
diff --git a/mm/memory.c b/mm/memory.c
index c467102a5cbc..3afdcf38993d 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -647,10 +647,10 @@ void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *vma,
 	}
 }
 
-int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
+int __pte_alloc(struct mm_struct *mm, pmd_t *pmd)
 {
 	spinlock_t *ptl;
-	pgtable_t new = pte_alloc_one(mm, address);
+	pgtable_t new = pte_alloc_one(mm);
 	if (!new)
 		return -ENOMEM;
 
@@ -681,9 +681,9 @@ int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
 	return 0;
 }
 
-int __pte_alloc_kernel(pmd_t *pmd, unsigned long address)
+int __pte_alloc_kernel(pmd_t *pmd)
 {
-	pte_t *new = pte_alloc_one_kernel(&init_mm, address);
+	pte_t *new = pte_alloc_one_kernel(&init_mm);
 	if (!new)
 		return -ENOMEM;
 
@@ -3139,7 +3139,7 @@ static vm_fault_t do_anonymous_page(struct vm_fault *vmf)
 	 *
 	 * Here we only have down_read(mmap_sem).
 	 */
-	if (pte_alloc(vma->vm_mm, vmf->pmd, vmf->address))
+	if (pte_alloc(vma->vm_mm, vmf->pmd))
 		return VM_FAULT_OOM;
 
 	/* See the comment in pte_alloc_one_map() */
@@ -3286,7 +3286,7 @@ static vm_fault_t pte_alloc_one_map(struct vm_fault *vmf)
 		pmd_populate(vma->vm_mm, vmf->pmd, vmf->prealloc_pte);
 		spin_unlock(vmf->ptl);
 		vmf->prealloc_pte = NULL;
-	} else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd, vmf->address))) {
+	} else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd))) {
 		return VM_FAULT_OOM;
 	}
 map_pte:
@@ -3365,7 +3365,7 @@ static vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page)
 	 * related to pte entry. Use the preallocated table for that.
 	 */
 	if (arch_needs_pgtable_deposit() && !vmf->prealloc_pte) {
-		vmf->prealloc_pte = pte_alloc_one(vma->vm_mm, vmf->address);
+		vmf->prealloc_pte = pte_alloc_one(vma->vm_mm);
 		if (!vmf->prealloc_pte)
 			return VM_FAULT_OOM;
 		smp_wmb(); /* See comment in __pte_alloc() */
@@ -3603,8 +3603,7 @@ static vm_fault_t do_fault_around(struct vm_fault *vmf)
 			start_pgoff + nr_pages - 1);
 
 	if (pmd_none(*vmf->pmd)) {
-		vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm,
-						  vmf->address);
+		vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm);
 		if (!vmf->prealloc_pte)
 			goto out;
 		smp_wmb(); /* See comment in __pte_alloc() */
diff --git a/mm/migrate.c b/mm/migrate.c
index 84381b55b2bd..3080b0626026 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -2605,7 +2605,7 @@ static void migrate_vma_insert_page(struct migrate_vma *migrate,
 	 *
 	 * Here we only have down_read(mmap_sem).
 	 */
-	if (pte_alloc(mm, pmdp, addr))
+	if (pte_alloc(mm, pmdp))
 		goto abort;
 
 	/* See the comment in pte_alloc_one_map() */
diff --git a/mm/mremap.c b/mm/mremap.c
index 5c2e18505f75..9e68a02a52b1 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -240,7 +240,7 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
 			if (pmd_trans_unstable(old_pmd))
 				continue;
 		}
-		if (pte_alloc(new_vma->vm_mm, new_pmd, new_addr))
+		if (pte_alloc(new_vma->vm_mm, new_pmd))
 			break;
 		next = (new_addr + PMD_SIZE) & PMD_MASK;
 		if (extent > next - new_addr)
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 5029f241908f..f05c8bc38ca5 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -513,7 +513,7 @@ static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,
 			break;
 		}
 		if (unlikely(pmd_none(dst_pmdval)) &&
-		    unlikely(__pte_alloc(dst_mm, dst_pmd, dst_addr))) {
+		    unlikely(__pte_alloc(dst_mm, dst_pmd))) {
 			err = -ENOMEM;
 			break;
 		}
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index ed162a6c57c5..3f8180414301 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -628,7 +628,7 @@ static int create_hyp_pmd_mappings(pud_t *pud, unsigned long start,
 		BUG_ON(pmd_sect(*pmd));
 
 		if (pmd_none(*pmd)) {
-			pte = pte_alloc_one_kernel(NULL, addr);
+			pte = pte_alloc_one_kernel(NULL);
 			if (!pte) {
 				kvm_err("Cannot allocate Hyp pte\n");
 				return -ENOMEM;
-- 
2.19.0.605.g01d371f741-goog

From - Thu Nov 08 21:42:14 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH 4/4] x86: select HAVE_MOVE_PMD for faster mremap (v1)
Date: Fri, 12 Oct 2018 18:32:00 -0700
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4546>

Moving page-tables at the PMD-level on x86 is known to be safe. Enable
this option so that we can do fast mremap when possible.

Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1a0be022f91d..01c02a9d7825 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -171,6 +171,7 @@ config X86
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_MIXED_BREAKPOINTS_REGS
 	select HAVE_MOD_ARCH_SPECIFIC
+	select HAVE_MOVE_PMD
 	select HAVE_NMI
 	select HAVE_OPROFILE
 	select HAVE_OPTPROBES
-- 
2.19.0.605.g01d371f741-goog

From - Thu Nov 08 21:42:14 2018
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From: Joel Fernandes <joel@joelfernandes.org>
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Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
Date: Fri, 12 Oct 2018 18:35:40 -0700
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To: David Miller <davem@davemloft.net>
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On Fri, Oct 12, 2018 at 11:18:36AM -0700, David Miller wrote:
> From: Joel Fernandes <joel@joelfernandes.org>
[...]
> > Also, do we not flush the caches from any path when we munmap
> > address space?  We do call do_munmap on the old mapping from mremap
> > after moving to the new one.
> 
> Sparc makes sure that shared mapping have consistent colors.  Therefore
> all that's left are private mappings and those will be initialized by
> block stores to clear the page out or similar.
> 
> Also, when creating new mappings, we flush the D-cache when necessary
> in update_mmu_cache().
> 
> We also maintain a bit in the page struct to track when a page which
> was potentially written to on one cpu ends up mapped into another
> address space and flush as necessary.
> 
> The cache is write-through, which simplifies the preconditions we have
> to maintain.

Makes sense, thanks. For the moment I sent patches to enable this on arm64
and x86. We can enable it on sparc as well at a later time as it sounds it
could be a safe optimization to apply to that architecture as well.

thanks,

 - Joel



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Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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To: Joel Fernandes <joel@joelfernandes.org>
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Not 32-bit ARM?

On Fri, Oct 12, 2018 at 6:35 PM, Joel Fernandes <joel@joelfernandes.org> wrote:
> On Fri, Oct 12, 2018 at 11:18:36AM -0700, David Miller wrote:
>> From: Joel Fernandes <joel@joelfernandes.org>
> [...]
>> > Also, do we not flush the caches from any path when we munmap
>> > address space?  We do call do_munmap on the old mapping from mremap
>> > after moving to the new one.
>>
>> Sparc makes sure that shared mapping have consistent colors.  Therefore
>> all that's left are private mappings and those will be initialized by
>> block stores to clear the page out or similar.
>>
>> Also, when creating new mappings, we flush the D-cache when necessary
>> in update_mmu_cache().
>>
>> We also maintain a bit in the page struct to track when a page which
>> was potentially written to on one cpu ends up mapped into another
>> address space and flush as necessary.
>>
>> The cache is write-through, which simplifies the preconditions we have
>> to maintain.
>
> Makes sense, thanks. For the moment I sent patches to enable this on arm64
> and x86. We can enable it on sparc as well at a later time as it sounds it
> could be a safe optimization to apply to that architecture as well.
>
> thanks,
>
>  - Joel
>


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Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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To: Daniel Colascione <dancol@google.com>
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On Fri, Oct 12, 2018 at 06:39:45PM -0700, Daniel Colascione wrote:
> Not 32-bit ARM?

Well, I didn't want to enable every possible architecture we could in a
single go. Certainly arm32 can be a follow on enablement as can be other
architectures. The point of this series is to upstream this feature and
enable a hand-picked few architectures as a first step.

thanks,

 - Joel



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Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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Cc: David Miller <davem@davemloft.net>, kirill@shutemov.name,
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        kasan-dev@googlegroups.com, kvmarm@lists.cs.columbia.edu,
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To: Joel Fernandes <joel@joelfernandes.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2898086>

I wonder whether it makes sense to expose to userspace somehow whether
mremap is "fast" for a particular architecture. If a feature relies on
fast mremap, it might be better for some userland component to disable
that feature entirely rather than blindly use mremap and end up
performing very poorly. If we're disabling fast mremap when THP is
enabled, the userland component can't just rely on an architecture
switch and some kind of runtime feature detection becomes even more
important.

On Fri, Oct 12, 2018 at 6:44 PM, Joel Fernandes <joel@joelfernandes.org> wrote:
> On Fri, Oct 12, 2018 at 06:39:45PM -0700, Daniel Colascione wrote:
>> Not 32-bit ARM?
>
> Well, I didn't want to enable every possible architecture we could in a
> single go. Certainly arm32 can be a follow on enablement as can be other
> architectures. The point of this series is to upstream this feature and
> enable a hand-picked few architectures as a first step.
>
> thanks,
>
>  - Joel
>


From - Thu Nov 08 21:42:16 2018
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Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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        linux
To: Daniel Colascione <dancol@google.com>
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On Fri, Oct 12, 2018 at 06:54:33PM -0700, Daniel Colascione wrote:
> I wonder whether it makes sense to expose to userspace somehow whether
> mremap is "fast" for a particular architecture. If a feature relies on
> fast mremap, it might be better for some userland component to disable
> that feature entirely rather than blindly use mremap and end up
> performing very poorly. If we're disabling fast mremap when THP is
> enabled, the userland component can't just rely on an architecture
> switch and some kind of runtime feature detection becomes even more
> important.

I hate to point out that its forbidden to top post on LKML :-)
https://kernelnewbies.org/mailinglistguidelines
So don't that Mr. Dan! :D

But anyway, I think this runtime detection thing is not needed. THP is
actually expected to be as fast as this anyway, so if that's available then
we should already be as fast. This is for non-THP where THP cannot be enabled
and there is still room for some improvement. Most/all architectures will be
just fine with this. This flag is more of a safety-net type of thing where in
the future if there is this one or two weird architectures that don't play
well, then they can turn it off at the architecture level by not selecting
the flag. See my latest patches for the per-architecture compile-time
controls. Ideally we'd like to blanket turn it on on all, but this is just
playing it extra safe as Kirill and me were discussing on other threads.

thanks!

- Joel



From - Thu Nov 08 21:42:17 2018
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Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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To: Joel Fernandes <joel@joelfernandes.org>
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On Fri, Oct 12, 2018 at 7:10 PM, Joel Fernandes <joel@joelfernandes.org> wrote:
> On Fri, Oct 12, 2018 at 06:54:33PM -0700, Daniel Colascione wrote:
>> I wonder whether it makes sense to expose to userspace somehow whether
>> mremap is "fast" for a particular architecture. If a feature relies on
>> fast mremap, it might be better for some userland component to disable
>> that feature entirely rather than blindly use mremap and end up
>> performing very poorly. If we're disabling fast mremap when THP is
>> enabled, the userland component can't just rely on an architecture
>> switch and some kind of runtime feature detection becomes even more
>> important.
>
> I hate to point out that its forbidden to top post on LKML :-)
> https://kernelnewbies.org/mailinglistguidelines
> So don't that Mr. Dan! :D

Guilty as charged. I really should switch back to Gnus. :-)

> But anyway, I think this runtime detection thing is not needed. THP is
> actually expected to be as fast as this anyway, so if that's available then
> we should already be as fast.

Ah, I think the commit message is confusing. (Or else I'm misreading
the patch now.) It's not quite that we're disabling the feature when
THP is enabled anywhere, but rather that we use the move_huge_pmd path
for huge PMDs and use the new code only for non-huge PMDs. (Right?) If
that's the case, the commit message shouldn't say "Incase THP is
enabled, the optimization is skipped". Even if THP is enabled on a
system generally, we might use the new PMD-moving code for mapping
types that don't support THP-ization, right?

> This is for non-THP where THP cannot be enabled
> and there is still room for some improvement. Most/all architectures will be
> just fine with this. This flag is more of a safety-net type of thing where in
> the future if there is this one or two weird architectures that don't play
> well, then they can turn it off at the architecture level by not selecting
> the flag. See my latest patches for the per-architecture compile-time
> controls. Ideally we'd like to blanket turn it on on all, but this is just
> playing it extra safe as Kirill and me were discussing on other threads.

Sure. I'm just pointing out that the 500x performance different turns
the operation into a qualitatively different feature, so if we expect
to actually ship a mainstream architecture without support for this
thing, we should make it explicit. If we're not, we shouldn't.


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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 5/6] parisc: wire up rseq system call
Date: Sat, 13 Oct 2018 11:12:12 +0530
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Cc: Arnd Bergmann <arnd@arndb.de>, linux-parisc@vger.kernel.org,
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        Thomas Gleixner <tglx@linutronix.de>,
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To: Helge Deller <deller@gmx.de>
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Hi Arnd, Helge,

On Sat, 13 Oct 2018 at 01:53, Helge Deller <deller@gmx.de> wrote:
>
> On 12.10.2018 13:52, Arnd Bergmann wrote:
> > On Fri, Oct 12, 2018 at 12:16 PM Firoz Khan <firoz.khan@linaro.org> wrote:
> >>
> >> Hi Arnd,
> >>
> >> On Fri, 12 Oct 2018 at 15:26, Arnd Bergmann <arnd@arndb.de> wrote:
> >>>
> >>> On Fri, Oct 12, 2018 at 11:45 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> >>>>
> >>>> Wire up rseq system call requires an architecture specific
> >>>> implementation as it not present now.
> >>>>
> >>>> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> >>>
> >>> Didn't we conclude that this should be skipped?
> >>
> >> Helge told "I prefer to keep the warning for rseq for now.
> >> It reminds me that we still may want the rseq syscall.
> >> If the warning is a problem, you may simply add the __IGNORE_rseq define."
> >>
> >> I chose this option; I feel it looks clean
> >> "# rseq requires an architecture specific implementation" in syscall.tbl
> >> hopefully remind him to add rseq syscall implementation in this architecture.
> >
> > But he said he wants the warning instead.
>
> Correct.
> Firoz, please simply drop this patch completely.
> That way one will see generated warnings about the missing rseq (which is what
> we want).

Sure. will do!

Firoz

>
> Thanks,
> Helge


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Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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To: "Kirill A. Shutemov" <kirill@shutemov.name>
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From - Thu Nov 08 21:42:17 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: SF Markus Elfring <elfring@users.sourceforge.net>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.janitors,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.hexagon,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 1/2] treewide: remove unused address argument from
 pte_alloc functions
Date: Sat, 13 Oct 2018 11:22:49 +0200
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Approved: news@gmane.org
Message-ID: <e1be1dda-90ab-052d-496b-3de01ffc80d1@users.sourceforge.net>
References: <20181012013756.11285-1-joel@joelfernandes.org>
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Peter Zijlstra <peterz@infradead.org>,
 Catalin Marinas <catalin.marinas@arm.com>,
 Dave Hansen <dave.hansen@linux.intel.com>, kernel-janitors@vger.kernel.org,
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 Daniel Colascione <dancol@google.com>,
 Yoshinori Sato <ysato@users.sourceforge.jp>, Max Filippov <jcmvbkbc@gmail.com>,
 linux-hexagon@vger.kernel.org, Helge Deller <deller@gmx.de>,
 "maintainer:X86 ARCHITECTURE \(32-BIT AND 64-BIT\)" <x86@kernel.org>,
 Hugh Dickins <hughd@google.com>,
 "James E. J. Bottomley" <jejb@parisc-linux.org>, kasan-dev@googlegroups.com,
 Ingo M
To: Joel Fernandes <joel@joelfernandes.org>
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 3/6] parisc: add system call table generation support
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Cc: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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To: Arnd Bergmann <arnd@arndb.de>,
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+ Rolf
Hi Arnd, Helge, Rolf,

On Fri, 12 Oct 2018 at 17:21, Arnd Bergmann <arnd@arndb.de> wrote:
>
> On Fri, Oct 12, 2018 at 11:45 AM Firoz Khan <firoz.khan@linaro.org> wrote:
>
> > diff --git a/arch/parisc/kernel/syscalls/Makefile b/arch/parisc/kernel/syscalls/Makefile
> > new file mode 100644
> > index 0000000..a0af5a3
> > --- /dev/null
> > +++ b/arch/parisc/kernel/syscalls/Makefile
>
> > +syshdr_abi_unistd_32 := common,32
> > +syshdr_offset_unistd_32 := __NR_Linux
> > +$(uapi)/unistd_32.h: $(syscall) $(syshdr)
> > +       $(call if_changed,syshdr)
> > +
> > +syshdr_abi_unistd_64 := common,64
> > +syshdr_offset_unistd_64 := __NR_Linux
> > +$(uapi)/unistd_64.h: $(syscall) $(syshdr)
> > +       $(call if_changed,syshdr)
>
> The __NR_Linux seems misplaced here, don't we need that only for ia64
> and mips?

No, It wasn't misplaced. you can refer below link.
https://github.com/torvalds/linux/blob/master/arch/parisc/include/uapi/asm/unistd.h#L16

FYI, In IA64, I added the __NR_Linux to come up a generic .tbl file
starts with 0 as a part
system call table generation. I think you might be applied my IA64
patches locally sometimes
before and now you might be confused.
https://github.com/torvalds/linux/blob/master/arch/ia64/include/uapi/asm/unistd.h

Yes, MIPS also uses this macro.

>
> > +systbl_abi_syscall_table_32 := common,32
> > +$(kapi)/syscall_table_32.h: $(syscall) $(systbl)
> > +       $(call if_changed,systbl)
> > +
> > +systbl_abi_syscall_table_64 := common,64
> > +$(kapi)/syscall_table_64.h: $(syscall) $(systbl)
> > +       $(call if_changed,systbl)
>
> Have you considered making the 'common' part implied?
> I expected to see it done that way, although listing it explicitly
> doesn't seem harmful either.

It can't be done in that way easily, I see some problem there existing script.

The problem you will understand by removing "common" and run the script.
You can do diff before and after the generated files.
ref: grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (

FYI, x86/arm/s390 implementation listing explicitly! So I almost followed
there way of implementation.

If you really want that way, please comment here. I need to redo the
scripting for
all 10 architecture.

>
> > +systbl_abi_syscall_table_c32 := common,compat,32
> > +$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
> > +       $(call if_changed,systbl)
>
> The way you specify 'compat' as one item in a list of
> ABIs seems rather odd, I'd suggest keeping that a separate
> flag.

Commented below.

>
> Passing "common|32" as the list of ABIs in the first argument,
> and 'compat' as the second argument.
>
> I think you can also pass arguments to 'if_changed', rather than
> setting a global variable to control it.

Sure. I'll have a look into this one!

> arch/powerpc/boot/Makefile has some examples of that.
> It should be possible to do this like
>
> $(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
>        $(call if_changed,systbl,common|32,compat)

This is something interesting!
Rolf, I was trying to explain this one yesterday. Sorry, I know I
haven't composed
the mail properly.

The uapi header generation script syscall table header generation script is
invoked by this Makefile.

systbl_abi_syscall_table_32 := common,32
$(kapi)/syscall_table_32.h: $(syscall) $(systbl)
        $(call if_changed,systbl)

Here I want to generate systbl_abi_syscall_table_32, so I'll pass few
args including the .tbl file.
So script must have to identify that it is for 32. It has to read 4th
column as <32/64 entry point>
from the .tbl file.

# The format is:
# <number> <abi> <name> <32/64 entry point> <compat entry point>
5       common  open                            sys_open
         compat_sys_open

Similarly for 64 also. Same 4th column should have to read.

systbl_abi_syscall_table_c32 := common,compat,32
$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
        $(call if_changed,systbl)

But for compat interface either it has to read 5th column if present,
otherwise 4th column.
Script won't understand it is for compat unless we have to explicitly
inform from Makefile.

There are multiple way to do:

1. This implementation
systbl_abi_syscall_table_c32 := common,compat,32 /* Makefile */

my_abi="$(cut -d'|' -f2 <<< $my_abis)" /*systbl.sh */
if [ $my_abi = "compat" ]; then
            if [ -z "$compat" ]; then
                emit $nxt $nr $entry
            else
                emit $nxt $nr $compat
            fi
        else
            emit $nxt $nr $entry
        fi

2. Add extra flag in the Makefile

systbl_abi_syscall_table_c32 := common,32
systbl_xyz_syscall_table_c32 := compat
$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
        $(call if_changed,systbl)

and check from the script and identify it.
This looks the direct method. Here I think the problem is
adding one more args

3. Without Makefile change we can identify it. No need to add extra flag

Makefile
------------
systbl_abi_syscall_table_c32 := common,32
$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
        $(call if_changed,systbl)

systbl.sh
-------------
    if [ ${out: -5} = "c32.h" ]; then
            if [ -z "$compat" ]; then
                emit $nxt $nr $entry
            else
                emit $nxt $nr $compat
            fi
        elif [ ${out: -4} = "64.h" -o  ${out: -4} = "32.h" ]; then
            emit $nxt $nr $entry
        fi

Here I was asking is there any better way to do the same.

Note: The name compat in Makefile may change to c32.
Note: This implementation remain same for spark and powerpc
hopefully. But Mips has extra one more interface. We need to consider
that also here.

>
> > diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> > new file mode 100644
> > index 0000000..7c9f268
> > --- /dev/null
> > +++ b/arch/parisc/kernel/syscalls/syscall.tbl
> ...
> > +346     common  copy_file_range                 sys_copy_file_range
> > +347     common  preadv2                         sys_preadv2                     compat_sys_preadv2
> > +348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
> > +349     common  statx                           sys_statx
> > +350    common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
> > \ No newline at end of file
>
> Here is the missing newline again. This should never happen if your text
> editor is configured correctly.
>
> > diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh b/arch/parisc/kernel/syscalls/syscallhdr.sh
> > new file mode 100644
> > index 0000000..607d4ca
> > --- /dev/null
> > +++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
> > @@ -0,0 +1,35 @@
> > +#!/bin/sh
> > +# SPDX-License-Identifier: GPL-2.0
> > +
> > +in="$1"
> > +out="$2"
> > +my_abis=`echo "($3)" | tr ',' '|'`
> > +prefix="$4"
> > +offset="$5"
> > +
> > +fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
> > +    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
> > +    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
>
> Maybe use ${ARCH} instead of PARISC here to keep it the same
> across architectures?

Sure. FYI, x86/arm/s390 has the above implementation,

>
> > +    my_abi="$(cut -d'|' -f2 <<< $my_abis)"
> > +    while read nr abi name entry compat ; do
> > +       if [ $my_abi = "compat" ]; then
>
> This check seems really fragile, but if you add another argument to the
> script instead of listing "compat" as the second option in the
> list of ABIs, I think it's fine.

Hmm. Please share ur comment in the above for the same.

Thanks
Firoz

>
>         ARnd


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On Fri, Oct 12, 2018 at 07:25:08PM -0700, Daniel Colascione wrote:
[...] 
> > But anyway, I think this runtime detection thing is not needed. THP is
> > actually expected to be as fast as this anyway, so if that's available then
> > we should already be as fast.
> 
> Ah, I think the commit message is confusing. (Or else I'm misreading
> the patch now.) It's not quite that we're disabling the feature when
> THP is enabled anywhere, but rather that we use the move_huge_pmd path
> for huge PMDs and use the new code only for non-huge PMDs. (Right?) If
> that's the case, the commit message shouldn't say "Incase THP is
> enabled, the optimization is skipped". Even if THP is enabled on a
> system generally, we might use the new PMD-moving code for mapping
> types that don't support THP-ization, right?

That is true. Ok, I guess I can update the commit message to be more accurate
about that.

> > This is for non-THP where THP cannot be enabled
> > and there is still room for some improvement. Most/all architectures will be
> > just fine with this. This flag is more of a safety-net type of thing where in
> > the future if there is this one or two weird architectures that don't play
> > well, then they can turn it off at the architecture level by not selecting
> > the flag. See my latest patches for the per-architecture compile-time
> > controls. Ideally we'd like to blanket turn it on on all, but this is just
> > playing it extra safe as Kirill and me were discussing on other threads.
> 
> Sure. I'm just pointing out that the 500x performance different turns
> the operation into a qualitatively different feature, so if we expect
> to actually ship a mainstream architecture without support for this
> thing, we should make it explicit. If we're not, we shouldn't.

We can make it explicit by enabling it in such a mainstream architecture is
my point. Also if the optimization is not doing what its supposed to, then
userspace will also just know by measuring the time.

thanks,

 - Joel



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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 3/6] parisc: add system call table generation support
Date: Mon, 15 Oct 2018 10:18:07 +0530
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References: <1539337442-3676-1-git-send-email-firoz.khan@linaro.org>
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Cc: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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        Deepa Dinamani <deepa.kernel@gmail.com>,
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        linux-parisc-owner@vger.kernel.org
To: Rolf Eike Beer <eike-kernel@sf-tec.de>
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Xref: news.gmane.org gmane.linux.kernel:2899001 gmane.linux.ports.parisc:29185 gmane.linux.kernel.year-2038:3526 gmane.linux.kernel.cross-arch:47800
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Hi Rolf,

On Fri, 12 Oct 2018 at 17:37, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
>
> Firoz Khan wrote:
>
> > diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh
> > b/arch/parisc/kernel/syscalls/syscallhdr.sh
> > new file mode 100644
> > index 0000000..607d4ca
> > --- /dev/null
> > +++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
> > @@ -0,0 +1,35 @@
> > +#!/bin/sh
> > +# SPDX-License-Identifier: GPL-2.0
> > +
> > +in="$1"
> > +out="$2"
> > +my_abis=`echo "($3)" | tr ',' '|'`
>
> Any reason not to use $() instead of backticks?

I got this frame work from x86/entry/syscalls;
https://github.com/torvalds/linux/blob/master/arch/x86/entry/syscalls/syscallhdr.sh
I haven't modified the script but I tune this script to meet my requirements.

Sure, I'll look into this.

>
> > +prefix="$4"
> > +offset="$5"
> > +
> > +fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
> > +    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
> > +    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
> > +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> > +    echo "#ifndef ${fileguard}"
> > +    echo "#define ${fileguard}"
> > +    echo ""
> > +
> > +    nxt=0
> > +    while read nr abi name entry compat ; do
> > +     if [ -z "$offset" ]; then
> > +         echo -e "#define __NR_${prefix}${name}\t$nr"
>
> This mixed indentation with both tabs and spaces is a bit messy.

Is this what you suggested?
-           echo -e "#define __NR_${prefix}${name}\t$nr"
+           echo "#define __NR_${prefix}${name} $nr"

>
> > +     else
> > +         echo -e "#define __NR_${prefix}${name}\t($offset + $nr)"
> > +     fi
> > +     nxt=$nr
> > +     let nxt=nxt+1
>
> Why do you use let here when you do $(()) calculations at other places?

Yes, will do this.
-        nxt=$nr
-        let nxt=nxt+1
+        nxt=$((nxt+1))

>
> > +    done
> > +
> > +    echo ""
> > +    echo "#ifdef __KERNEL__"
> > +    echo -e "#define __NR_syscalls\t$nxt"
> > +    echo "#endif"
> > +    echo ""
> > +    echo "#endif /* ${fileguard} */"
> > +) > "$out"
> > diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh
> > b/arch/parisc/kernel/syscalls/syscalltbl.sh
> > new file mode 100644
> > index 0000000..04abde7
> > --- /dev/null
> > +++ b/arch/parisc/kernel/syscalls/syscalltbl.sh
> > @@ -0,0 +1,46 @@
> > +#!/bin/sh
> > +# SPDX-License-Identifier: GPL-2.0
> > +
> > +in="$1"
> > +out="$2"
> > +my_abis=`echo "($3)" | tr ',' '|'`
> > +offset="$4"
> > +
> > +emit() {
> > +    nxt="$1"
> > +    if [ -z "$offset" ]; then
> > +     nr="$2"
> > +    else
> > +     nr="$2"
> > +     nr=$((nr+offset))
>
> This could be one line, no? Or just set offset to 0 if it is empty and
> avoid that if alltogether.

Sure!

>
> > +    fi
> > +    entry="$3"
> > +
> > +    while [ $nxt -lt $nr ]; do
> > +     echo "__SYSCALL($nxt, sys_ni_syscall, )"
> > +        let nxt=nxt+1
> > +    done
> > +    echo "__SYSCALL($nxt, $entry, )"
> > +}
> > +
> > +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> > +    if [ -z "$offset" ]; then
> > +     nxt=0
> > +    else
> > +     nxt=$offset
> > +    fi
>
> Another argument for offset=0 as default.

Sure.

>
> > +
> > +    my_abi="$(cut -d'|' -f2 <<< $my_abis)"
>
> "<<<" is a bash extension and will not work with /bin/sh.

Ohh, ok

>
> > +    while read nr abi name entry compat ; do
> > +     if [ $my_abi = "compat" ]; then
> > +         if [ -z "$compat" ]; then
> > +             emit $nxt $nr $entry
> > +         else
> > +             emit $nxt $nr $compat
> > +         fi
> > +     else
> > +         emit $nxt $nr $entry
> > +     fi
>
> I would go for a local variable being set to $compat or $entry and
> calling emit at only one place. And there should be only one if with 2
> expressions, no need for 3 branches.

Sure.

>
> > +        let nxt=nxt+1
>
> Inconsistent indentation.

I'm using emacs editor with default settings. In the actual file, there is no
indentation problem which I found but if I get patch using git format-patch,
it has inconsistent indentation.

No idea. I could find the same problem in other patches also.
Let me use the vi editor to save the file and get the patch.

Thanks
Firoz

>
> > +    done
> > +) > "$out"
>
> Eike


From - Thu Nov 08 21:42:17 2018
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X-Mozilla-Keys:                                                                                 
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v4 3/6] parisc: add system call table generation support
Date: Mon, 15 Oct 2018 10:42:27 +0530
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Cc: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Philippe Ombredanne <pombredanne@nexb.com>,
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        Arnd Bergmann <arnd@arndb.de>,
        Deepa Dinamani <deepa.kernel@gmail.com>,
        Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
To: esyr@redhat.com
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Hi Eugene,

On Sun, 14 Oct 2018 at 06:36, Eugene Syromiatnikov <esyr@redhat.com> wrote:
>
> On Fri, Oct 12, 2018 at 03:13:59PM +0530, Firoz Khan wrote:
> > diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> > new file mode 100644
> > index 0000000..7c9f268
>
> > +86      common  uselib                          sys_ni_syscall
>
> Again, why is this definition left, while others have been removed?

The system call generation script will generate new uapi and syscall
table files and replace the existed one. We'll make sure the generated
file against replaced one will be identical.

uselib is declared in uapi header:
https://github.com/torvalds/linux/blob/master/arch/parisc/include/uapi/asm/unistd.h#L103
So I have to make sure this entry is present in the generated uapi header.

>
> > +348     common  pwritev2                        sys_pwritev2                    compat_sys_pwritev2
> > +349     common  statx                           sys_statx
> > +350  common  io_pgetevents                   sys_io_pgetevents               compat_sys_io_pgetevents
>
> Tab instead of spaces.

I'm using emacs editor with default settings. In the actual file, there is no
indentation problem which I find but if I get patch using git format-patch,
it has inconsistent indentation.

No idea. I could find the same problem in other patches also.
Let me use the vi editor to save the file and get the patch.

>
> > diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh b/arch/parisc/kernel/syscalls/syscallhdr.sh
> > new file mode 100644
> > index 0000000..607d4ca
> > --- /dev/null
> > +++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
> > @@ -0,0 +1,35 @@
> > +#!/bin/sh
>
> /bin/sh -efu
>
> > +# SPDX-License-Identifier: GPL-2.0
>
> "export LANG=C", due to usage of sed/grep/sort.

I got this frame work from x86/entry/syscalls;
https://github.com/torvalds/linux/blob/master/arch/x86/entry/syscalls/syscallhdr.sh
I haven't modified the script but I tune this script to meet my requirements.

Sure, I'll look into this.

>
> > +
> > +in="$1"
> > +out="$2"
> > +my_abis=`echo "($3)" | tr ',' '|'`
> > +prefix="$4"
> > +offset="$5"
> > +
> > +fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
> > +    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
> > +    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
> > +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
>
> grep -E '^[[:xdigit:]Xx]+[[:space:]]+'"${my_abis}" "$in"
> sort -n -k1,1
>
> > +    echo "#ifndef ${fileguard}"
> > +    echo "#define ${fileguard}"
> > +    echo ""
>
>         cat <<-EOF
>                 #ifndef ${fileguard}
>                 #define ${fileguard}
>
>         EOF
>
> > +
> > +    nxt=0
> > +    while read nr abi name entry compat ; do
> > +     if [ -z "$offset" ]; then
> > +         echo -e "#define __NR_${prefix}${name}\t$nr"
> > +     else
> > +         echo -e "#define __NR_${prefix}${name}\t($offset + $nr)"
> > +     fi
>
> echo options are not portable; something like
>
>         printf "#define __NR_%s%s\t(%s + %s)" "${prefix}" "${name}" "${offset}" "${nr}"

x86/armhas similar echo implementation.
https://github.com/torvalds/linux/blob/master/arch/arm/tools/syscallhdr.sh

s390 has this printf implemenation.
https://github.com/torvalds/linux/blob/master/arch/s390/kernel/syscalls/syscalltbl

I chose echo one. but it is easy to change to printf :)

>
> > +     nxt=$nr
> > +     let nxt=nxt+1
>
> "let" is a bash extension, posix-conformant expression would be
>
>         nxt=$((nr + 1))
>
> (I would also check that nr >= nxt, however)

Sure.

>
> > +    done
> > +
> > +    echo ""
> > +    echo "#ifdef __KERNEL__"
> > +    echo -e "#define __NR_syscalls\t$nxt"
> > +    echo "#endif"
> > +    echo ""
> > +    echo "#endif /* ${fileguard} */"
>
>         cat <<-EOF
>
>                 #ifdef __KERNEL__
>                 # define __NR_syscalls\t${nxt}
>                 #endif
>
>                 #endif /* ${fileguard} */
>         EOF
>
> > +) > "$out"
> > diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh b/arch/parisc/kernel/syscalls/syscalltbl.sh
> > new file mode 100644
> > index 0000000..04abde7
> > --- /dev/null
> > +++ b/arch/parisc/kernel/syscalls/syscalltbl.sh
> > @@ -0,0 +1,46 @@
> > +#!/bin/sh
> > +# SPDX-License-Identifier: GPL-2.0
> > +
> > +in="$1"
> > +out="$2"
> > +my_abis=`echo "($3)" | tr ',' '|'`
> > +offset="$4"
> > +
> > +emit() {
> > +    nxt="$1"
> > +    if [ -z "$offset" ]; then
> > +     nr="$2"
> > +    else
> > +     nr="$2"
> > +     nr=$((nr+offset))
> > +    fi
> > +    entry="$3"
> > +
> > +    while [ $nxt -lt $nr ]; do
>
> It would break nicely if nxt="-n x -o 1" or something like that.
>
> > +     echo "__SYSCALL($nxt, sys_ni_syscall, )"
> > +        let nxt=nxt+1
> > +    done
> > +    echo "__SYSCALL($nxt, $entry, )"
> > +}
> > +
> > +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> > +    if [ -z "$offset" ]; then
> > +     nxt=0
> > +    else
> > +     nxt=$offset
> > +    fi
> > +
> > +    my_abi="$(cut -d'|' -f2 <<< $my_abis)"
>
>         my_abi="${my_abis#*|}"
>
> But it looks like that $my_abis includes parentheses and this code
> is broken.

I may planned to have some different implementation for the same.

>
> > +    while read nr abi name entry compat ; do
> > +     if [ $my_abi = "compat" ]; then
> > +         if [ -z "$compat" ]; then
> > +             emit $nxt $nr $entry
> > +         else
> > +             emit $nxt $nr $compat
> > +         fi
> > +     else
> > +         emit $nxt $nr $entry
> > +     fi
> > +        let nxt=nxt+1
> > +    done
> > +) > "$out"

Thanks
Firoz

> > --
> > 1.9.1
> >


From - Thu Nov 08 21:42:17 2018
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Firoz Khan wrote:
> Hi Rolf,
> 
> On Fri, 12 Oct 2018 at 17:37, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
> > Firoz Khan wrote:

> > > +prefix="$4"
> > > +offset="$5"
> > > +
> > > +fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
> > > +    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
> > > +    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
> > > +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> > > +    echo "#ifndef ${fileguard}"
> > > +    echo "#define ${fileguard}"
> > > +    echo ""
> > > +
> > > +    nxt=0
> > > +    while read nr abi name entry compat ; do
> > > +     if [ -z "$offset" ]; then
> > > +         echo -e "#define __NR_${prefix}${name}\t$nr"
> > 
> > This mixed indentation with both tabs and spaces is a bit messy.
> 
> Is this what you suggested?
> -           echo -e "#define __NR_${prefix}${name}\t$nr"
> +           echo "#define __NR_${prefix}${name} $nr"

No, this was actually only about the script itself. Looks like your editor has 
tab-width 8 and indentation 4 or so.

Eike
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Hi Eike,

On Mon, 15 Oct 2018 at 10:47, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
>
> Firoz Khan wrote:
> > Hi Rolf,
> >
> > On Fri, 12 Oct 2018 at 17:37, Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:
> > > Firoz Khan wrote:
>
> > > > +prefix="$4"
> > > > +offset="$5"
> > > > +
> > > > +fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
> > > > +    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
> > > > +    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
> > > > +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> > > > +    echo "#ifndef ${fileguard}"
> > > > +    echo "#define ${fileguard}"
> > > > +    echo ""
> > > > +
> > > > +    nxt=0
> > > > +    while read nr abi name entry compat ; do
> > > > +     if [ -z "$offset" ]; then
> > > > +         echo -e "#define __NR_${prefix}${name}\t$nr"
> > >
> > > This mixed indentation with both tabs and spaces is a bit messy.
> >
> > Is this what you suggested?
> > -           echo -e "#define __NR_${prefix}${name}\t$nr"
> > +           echo "#define __NR_${prefix}${name} $nr"
>
> No, this was actually only about the script itself. Looks like your editor has
> tab-width 8 and indentation 4 or so.

Ok. Something is going bad while creating the patch series. That's why this
mixed indentation with both tabs and spaces.Will fix now.

It will be ok to have indentation of 4 character?
https://github.com/torvalds/linux/blob/master/arch/x86/entry/syscalls/syscalltbl.sh
https://github.com/torvalds/linux/blob/master/arch/arm/tools/syscalltbl.sh

Thanks
Firoz
>
> Eike


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Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
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On 10/12/2018 03:37 AM, Joel Fernandes (Google) wrote:
> Android needs to mremap large regions of memory during memory management
> related operations. The mremap system call can be really slow if THP is
> not enabled. The bottleneck is move_page_tables, which is copying each
> pte at a time, and can be really slow across a large map. Turning on THP
> may not be a viable option, and is not for us. This patch speeds up the
> performance for non-THP system by copying at the PMD level when possible.
> 
> The speed up is three orders of magnitude. On a 1GB mremap, the mremap
> completion times drops from 160-250 millesconds to 380-400 microseconds.
> 
> Before:
> Total mremap time for 1GB data: 242321014 nanoseconds.
> Total mremap time for 1GB data: 196842467 nanoseconds.
> Total mremap time for 1GB data: 167051162 nanoseconds.
> 
> After:
> Total mremap time for 1GB data: 385781 nanoseconds.
> Total mremap time for 1GB data: 388959 nanoseconds.
> Total mremap time for 1GB data: 402813 nanoseconds.
> 
> Incase THP is enabled, the optimization is skipped. I also flush the
> tlb every time we do this optimization since I couldn't find a way to
> determine if the low-level PTEs are dirty. It is seen that the cost of
> doing so is not much compared the improvement, on both x86-64 and arm64.
> 
> Cc: minchan@kernel.org
> Cc: pantin@google.com
> Cc: hughd@google.com
> Cc: lokeshgidra@google.com
> Cc: dancol@google.com
> Cc: mhocko@kernel.org
> Cc: kirill@shutemov.name
> Cc: akpm@linux-foundation.org
> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
> ---
>  mm/mremap.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 62 insertions(+)
> 
> diff --git a/mm/mremap.c b/mm/mremap.c
> index 9e68a02a52b1..d82c485822ef 100644
> --- a/mm/mremap.c
> +++ b/mm/mremap.c
> @@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
>  		drop_rmap_locks(vma);
>  }
>  
> +static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
> +		  unsigned long new_addr, unsigned long old_end,
> +		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
> +{
> +	spinlock_t *old_ptl, *new_ptl;
> +	struct mm_struct *mm = vma->vm_mm;
> +
> +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> +	    || old_end - old_addr < PMD_SIZE)
> +		return false;
> +
> +	/*
> +	 * The destination pmd shouldn't be established, free_pgtables()
> +	 * should have release it.
> +	 */
> +	if (WARN_ON(!pmd_none(*new_pmd)))
> +		return false;
> +
> +	/*
> +	 * We don't have to worry about the ordering of src and dst
> +	 * ptlocks because exclusive mmap_sem prevents deadlock.
> +	 */
> +	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
> +	if (old_ptl) {
> +		pmd_t pmd;
> +
> +		new_ptl = pmd_lockptr(mm, new_pmd);
> +		if (new_ptl != old_ptl)
> +			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
> +
> +		/* Clear the pmd */
> +		pmd = *old_pmd;
> +		pmd_clear(old_pmd);

Adding Martin Schwidefsky.
Is this mapping maybe still in use on other CPUs? If yes, I think for
s390 we need to flush here as well (in other word we might need to introduce
pmd_clear_flush). On s390 you have to use instructions like CRDTE,IPTE or IDTE
to modify page table entries that are still in use. Otherwise you can get a 
delayed access exception which is - in contrast to page faults - not recoverable.



> +
> +		VM_BUG_ON(!pmd_none(*new_pmd));
> +
> +		/* Set the new pmd */
> +		set_pmd_at(mm, new_addr, new_pmd, pmd);
> +		if (new_ptl != old_ptl)
> +			spin_unlock(new_ptl);
> +		spin_unlock(old_ptl);
> +
> +		*need_flush = true;
> +		return true;
> +	}
> +	return false;
> +}
> +
>  unsigned long move_page_tables(struct vm_area_struct *vma,
>  		unsigned long old_addr, struct vm_area_struct *new_vma,
>  		unsigned long new_addr, unsigned long len,
> @@ -239,7 +287,21 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
>  			split_huge_pmd(vma, old_pmd, old_addr);
>  			if (pmd_trans_unstable(old_pmd))
>  				continue;
> +		} else if (extent == PMD_SIZE) {
> +			bool moved;
> +
> +			/* See comment in move_ptes() */
> +			if (need_rmap_locks)
> +				take_rmap_locks(vma);
> +			moved = move_normal_pmd(vma, old_addr, new_addr,
> +					old_end, old_pmd, new_pmd,
> +					&need_flush);
> +			if (need_rmap_locks)
> +				drop_rmap_locks(vma);
> +			if (moved)
> +				continue;
>  		}
> +
>  		if (pte_alloc(new_vma->vm_mm, new_pmd))
>  			break;
>  		next = (new_addr + PMD_SIZE) & PMD_MASK;
> 

From - Thu Nov 08 21:42:18 2018
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Newsgroups: gmane.linux.ports.riscv,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
Date: Mon, 15 Oct 2018 10:18:14 +0200
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To: Christian Borntraeger <borntraeger@de.ibm.com>
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On Mon, 15 Oct 2018 09:10:53 +0200
Christian Borntraeger <borntraeger@de.ibm.com> wrote:

> On 10/12/2018 03:37 AM, Joel Fernandes (Google) wrote:
> > Android needs to mremap large regions of memory during memory management
> > related operations. The mremap system call can be really slow if THP is
> > not enabled. The bottleneck is move_page_tables, which is copying each
> > pte at a time, and can be really slow across a large map. Turning on THP
> > may not be a viable option, and is not for us. This patch speeds up the
> > performance for non-THP system by copying at the PMD level when possible.
> > 
> > The speed up is three orders of magnitude. On a 1GB mremap, the mremap
> > completion times drops from 160-250 millesconds to 380-400 microseconds.
> > 
> > Before:
> > Total mremap time for 1GB data: 242321014 nanoseconds.
> > Total mremap time for 1GB data: 196842467 nanoseconds.
> > Total mremap time for 1GB data: 167051162 nanoseconds.
> > 
> > After:
> > Total mremap time for 1GB data: 385781 nanoseconds.
> > Total mremap time for 1GB data: 388959 nanoseconds.
> > Total mremap time for 1GB data: 402813 nanoseconds.
> > 
> > Incase THP is enabled, the optimization is skipped. I also flush the
> > tlb every time we do this optimization since I couldn't find a way to
> > determine if the low-level PTEs are dirty. It is seen that the cost of
> > doing so is not much compared the improvement, on both x86-64 and arm64.
> > 
> > Cc: minchan@kernel.org
> > Cc: pantin@google.com
> > Cc: hughd@google.com
> > Cc: lokeshgidra@google.com
> > Cc: dancol@google.com
> > Cc: mhocko@kernel.org
> > Cc: kirill@shutemov.name
> > Cc: akpm@linux-foundation.org
> > Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
> > ---
> >  mm/mremap.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++
> >  1 file changed, 62 insertions(+)
> > 
> > diff --git a/mm/mremap.c b/mm/mremap.c
> > index 9e68a02a52b1..d82c485822ef 100644
> > --- a/mm/mremap.c
> > +++ b/mm/mremap.c
> > @@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
> >  		drop_rmap_locks(vma);
> >  }
> >  
> > +static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
> > +		  unsigned long new_addr, unsigned long old_end,
> > +		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
> > +{
> > +	spinlock_t *old_ptl, *new_ptl;
> > +	struct mm_struct *mm = vma->vm_mm;
> > +
> > +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> > +	    || old_end - old_addr < PMD_SIZE)
> > +		return false;
> > +
> > +	/*
> > +	 * The destination pmd shouldn't be established, free_pgtables()
> > +	 * should have release it.
> > +	 */
> > +	if (WARN_ON(!pmd_none(*new_pmd)))
> > +		return false;
> > +
> > +	/*
> > +	 * We don't have to worry about the ordering of src and dst
> > +	 * ptlocks because exclusive mmap_sem prevents deadlock.
> > +	 */
> > +	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
> > +	if (old_ptl) {
> > +		pmd_t pmd;
> > +
> > +		new_ptl = pmd_lockptr(mm, new_pmd);
> > +		if (new_ptl != old_ptl)
> > +			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
> > +
> > +		/* Clear the pmd */
> > +		pmd = *old_pmd;
> > +		pmd_clear(old_pmd);  
> 
> Adding Martin Schwidefsky.
> Is this mapping maybe still in use on other CPUs? If yes, I think for
> s390 we need to flush here as well (in other word we might need to introduce
> pmd_clear_flush). On s390 you have to use instructions like CRDTE,IPTE or IDTE
> to modify page table entries that are still in use. Otherwise you can get a 
> delayed access exception which is - in contrast to page faults - not recoverable.

Just clearing an active pmd would be broken for s390. We need the equivalent
of the ptep_get_and_clear() function for pmds. For s390 this function would
look like this:

static inline pte_t pmdp_get_and_clear(struct mm_struct *mm,
                                       unsigned long addr, pmd_t *pmdp)
{
        return pmdp_xchg_lazy(mm, addr, pmdp, __pmd(_SEGMENT_ENTRY_INVALID));
}

Just like pmdp_huge_get_and_clear() in fact.

> 
> 
> 
> > +
> > +		VM_BUG_ON(!pmd_none(*new_pmd));
> > +
> > +		/* Set the new pmd */
> > +		set_pmd_at(mm, new_addr, new_pmd, pmd);
> > +		if (new_ptl != old_ptl)
> > +			spin_unlock(new_ptl);
> > +		spin_unlock(old_ptl);
> > +
> > +		*need_flush = true;
> > +		return true;
> > +	}
> > +	return false;
> > +}
> > +

So the idea is to move the pmd entry to the new location, dragging
the whole pte table to a new location with a different address.
I wonder if that is safe in regard to get_user_pages_fast().

> >  unsigned long move_page_tables(struct vm_area_struct *vma,
> >  		unsigned long old_addr, struct vm_area_struct *new_vma,
> >  		unsigned long new_addr, unsigned long len,
> > @@ -239,7 +287,21 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
> >  			split_huge_pmd(vma, old_pmd, old_addr);
> >  			if (pmd_trans_unstable(old_pmd))
> >  				continue;
> > +		} else if (extent == PMD_SIZE) {
> > +			bool moved;
> > +
> > +			/* See comment in move_ptes() */
> > +			if (need_rmap_locks)
> > +				take_rmap_locks(vma);
> > +			moved = move_normal_pmd(vma, old_addr, new_addr,
> > +					old_end, old_pmd, new_pmd,
> > +					&need_flush);
> > +			if (need_rmap_locks)
> > +				drop_rmap_locks(vma);
> > +			if (moved)
> > +				continue;
> >  		}
> > +
> >  		if (pte_alloc(new_vma->vm_mm, new_pmd))
> >  			break;
> >  		next = (new_addr + PMD_SIZE) & PMD_MASK;
> >   

-- 
blue skies,
   Martin.

"Reality continues to ruin my life." - Calvin.

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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.hexagon,gmane.linux.ports.alpha,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
Date: Mon, 15 Oct 2018 02:42:09 -0700
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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To: "Joel Fernandes (Google)" <joel@joelfernandes.org>
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On Fri, Oct 12, 2018 at 06:31:58PM -0700, Joel Fernandes (Google) wrote:
> Android needs to mremap large regions of memory during memory management
> related operations.

Just curious: why?

> +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> +	    || old_end - old_addr < PMD_SIZE)

The || goes on the first line.

> +		} else if (extent == PMD_SIZE && IS_ENABLED(CONFIG_HAVE_MOVE_PMD)) {

Overly long line.

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Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
Date: Mon, 15 Oct 2018 15:33:03 -0700
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On Mon, Oct 15, 2018 at 02:42:09AM -0700, Christoph Hellwig wrote:
> On Fri, Oct 12, 2018 at 06:31:58PM -0700, Joel Fernandes (Google) wrote:
> > Android needs to mremap large regions of memory during memory management
> > related operations.
> 
> Just curious: why?

In Android we have a requirement of moving a large (up to a GB now, but may
grow bigger in future) memory range from one location to another. This move
operation has to happen when the application threads are paused for this
operation. Therefore, an inefficient move like it is now (for example 250ms
on arm64) will cause response time issues for applications, which is not
acceptable. Huge pages cannot be used in such memory ranges to avoid this
inefficiency as (when the application threads are running) our fault handlers
are designed to process 4KB pages at a time, to keep response times low. So
using huge pages in this context can, again, cause response time issues.

Also, the mremap syscall waiting for quarter of a second for a large mremap
is quite weird and we ought to improve it where possible.

> > +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> > +	    || old_end - old_addr < PMD_SIZE)
> 
> The || goes on the first line.

Ok, fixed.

> > +		} else if (extent == PMD_SIZE && IS_ENABLED(CONFIG_HAVE_MOVE_PMD)) {
> 
> Overly long line.

Ok, fixed. Preview of updated patch is below.

thanks,

 - Joel

------8<---
From: "Joel Fernandes (Google)" <joel@joelfernandes.org>
Subject: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v3)

Android needs to mremap large regions of memory during memory management
related operations. The mremap system call can be really slow if THP is
not enabled. The bottleneck is move_page_tables, which is copying each
pte at a time, and can be really slow across a large map. Turning on THP
may not be a viable option, and is not for us. This patch speeds up the
performance for non-THP system by copying at the PMD level when possible.

The speed up is three orders of magnitude. On a 1GB mremap, the mremap
completion times drops from 160-250 millesconds to 380-400 microseconds.

Before:
Total mremap time for 1GB data: 242321014 nanoseconds.
Total mremap time for 1GB data: 196842467 nanoseconds.
Total mremap time for 1GB data: 167051162 nanoseconds.

After:
Total mremap time for 1GB data: 385781 nanoseconds.
Total mremap time for 1GB data: 388959 nanoseconds.
Total mremap time for 1GB data: 402813 nanoseconds.

Incase THP is enabled, the optimization is mostly skipped except in
certain situations. I also flush the tlb every time we do this
optimization since I couldn't find a way to determine if the low-level
PTEs are dirty. It is seen that the cost of doing so is not much
compared the improvement, on both x86-64 and arm64.

Cc: minchan@kernel.org
Cc: pantin@google.com
Cc: hughd@google.com
Cc: lokeshgidra@google.com
Cc: dancol@google.com
Cc: mhocko@kernel.org
Cc: kirill@shutemov.name
Cc: akpm@linux-foundation.org
Cc: kernel-team@android.com
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---
 arch/Kconfig |  5 ++++
 mm/mremap.c  | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 71 insertions(+)

diff --git a/arch/Kconfig b/arch/Kconfig
index 6801123932a5..9724fe39884f 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -518,6 +518,11 @@ config HAVE_IRQ_TIME_ACCOUNTING
 	  Archs need to ensure they use a high enough resolution clock to
 	  support irq time accounting and then call enable_sched_clock_irqtime().
 
+config HAVE_MOVE_PMD
+	bool
+	help
+	  Archs that select this are able to move page tables at the PMD level.
+
 config HAVE_ARCH_TRANSPARENT_HUGEPAGE
 	bool
 
diff --git a/mm/mremap.c b/mm/mremap.c
index 9e68a02a52b1..a8dd98a59975 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 		drop_rmap_locks(vma);
 }
 
+static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
+		  unsigned long new_addr, unsigned long old_end,
+		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
+{
+	spinlock_t *old_ptl, *new_ptl;
+	struct mm_struct *mm = vma->vm_mm;
+
+	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK) ||
+	    old_end - old_addr < PMD_SIZE)
+		return false;
+
+	/*
+	 * The destination pmd shouldn't be established, free_pgtables()
+	 * should have release it.
+	 */
+	if (WARN_ON(!pmd_none(*new_pmd)))
+		return false;
+
+	/*
+	 * We don't have to worry about the ordering of src and dst
+	 * ptlocks because exclusive mmap_sem prevents deadlock.
+	 */
+	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
+	if (old_ptl) {
+		pmd_t pmd;
+
+		new_ptl = pmd_lockptr(mm, new_pmd);
+		if (new_ptl != old_ptl)
+			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
+
+		/* Clear the pmd */
+		pmd = *old_pmd;
+		pmd_clear(old_pmd);
+
+		VM_BUG_ON(!pmd_none(*new_pmd));
+
+		/* Set the new pmd */
+		set_pmd_at(mm, new_addr, new_pmd, pmd);
+		if (new_ptl != old_ptl)
+			spin_unlock(new_ptl);
+		spin_unlock(old_ptl);
+
+		*need_flush = true;
+		return true;
+	}
+	return false;
+}
+
 unsigned long move_page_tables(struct vm_area_struct *vma,
 		unsigned long old_addr, struct vm_area_struct *new_vma,
 		unsigned long new_addr, unsigned long len,
@@ -239,7 +287,25 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
 			split_huge_pmd(vma, old_pmd, old_addr);
 			if (pmd_trans_unstable(old_pmd))
 				continue;
+		} else if (extent == PMD_SIZE &&
+			   IS_ENABLED(CONFIG_HAVE_MOVE_PMD)) {
+			/*
+			 * If the extent is PMD-sized, try to speed the move by
+			 * moving at the PMD level if possible.
+			 */
+			bool moved;
+
+			if (need_rmap_locks)
+				take_rmap_locks(vma);
+			moved = move_normal_pmd(vma, old_addr, new_addr,
+						old_end, old_pmd, new_pmd,
+						&need_flush);
+			if (need_rmap_locks)
+				drop_rmap_locks(vma);
+			if (moved)
+				continue;
 		}
+
 		if (pte_alloc(new_vma->vm_mm, new_pmd))
 			break;
 		next = (new_addr + PMD_SIZE) & PMD_MASK;
-- 
2.19.1.331.ge82ca0e54c-goog

From - Thu Nov 08 21:42:18 2018
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From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 2/2] mm: speed up mremap by 500x on large regions
Date: Mon, 15 Oct 2018 19:08:53 -0700
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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 Christian Borntraeger <borntraeger@de.ibm.co
To: Martin Schwidefsky <schwidefsky@de.ibm.com>
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On Mon, Oct 15, 2018 at 10:18:14AM +0200, Martin Schwidefsky wrote:
> On Mon, 15 Oct 2018 09:10:53 +0200
> Christian Borntraeger <borntraeger@de.ibm.com> wrote:
> 
> > On 10/12/2018 03:37 AM, Joel Fernandes (Google) wrote:
> > > Android needs to mremap large regions of memory during memory management
> > > related operations. The mremap system call can be really slow if THP is
> > > not enabled. The bottleneck is move_page_tables, which is copying each
> > > pte at a time, and can be really slow across a large map. Turning on THP
> > > may not be a viable option, and is not for us. This patch speeds up the
> > > performance for non-THP system by copying at the PMD level when possible.
> > > 
> > > The speed up is three orders of magnitude. On a 1GB mremap, the mremap
> > > completion times drops from 160-250 millesconds to 380-400 microseconds.
> > > 
> > > Before:
> > > Total mremap time for 1GB data: 242321014 nanoseconds.
> > > Total mremap time for 1GB data: 196842467 nanoseconds.
> > > Total mremap time for 1GB data: 167051162 nanoseconds.
> > > 
> > > After:
> > > Total mremap time for 1GB data: 385781 nanoseconds.
> > > Total mremap time for 1GB data: 388959 nanoseconds.
> > > Total mremap time for 1GB data: 402813 nanoseconds.
> > > 
> > > Incase THP is enabled, the optimization is skipped. I also flush the
> > > tlb every time we do this optimization since I couldn't find a way to
> > > determine if the low-level PTEs are dirty. It is seen that the cost of
> > > doing so is not much compared the improvement, on both x86-64 and arm64.
> > > 
> > > Cc: minchan@kernel.org
> > > Cc: pantin@google.com
> > > Cc: hughd@google.com
> > > Cc: lokeshgidra@google.com
> > > Cc: dancol@google.com
> > > Cc: mhocko@kernel.org
> > > Cc: kirill@shutemov.name
> > > Cc: akpm@linux-foundation.org
> > > Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
> > > ---
> > >  mm/mremap.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++
> > >  1 file changed, 62 insertions(+)
> > > 
> > > diff --git a/mm/mremap.c b/mm/mremap.c
> > > index 9e68a02a52b1..d82c485822ef 100644
> > > --- a/mm/mremap.c
> > > +++ b/mm/mremap.c
> > > @@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
> > >  		drop_rmap_locks(vma);
> > >  }
> > >  
> > > +static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
> > > +		  unsigned long new_addr, unsigned long old_end,
> > > +		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
> > > +{
> > > +	spinlock_t *old_ptl, *new_ptl;
> > > +	struct mm_struct *mm = vma->vm_mm;
> > > +
> > > +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> > > +	    || old_end - old_addr < PMD_SIZE)
> > > +		return false;
> > > +
> > > +	/*
> > > +	 * The destination pmd shouldn't be established, free_pgtables()
> > > +	 * should have release it.
> > > +	 */
> > > +	if (WARN_ON(!pmd_none(*new_pmd)))
> > > +		return false;
> > > +
> > > +	/*
> > > +	 * We don't have to worry about the ordering of src and dst
> > > +	 * ptlocks because exclusive mmap_sem prevents deadlock.
> > > +	 */
> > > +	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
> > > +	if (old_ptl) {
> > > +		pmd_t pmd;
> > > +
> > > +		new_ptl = pmd_lockptr(mm, new_pmd);
> > > +		if (new_ptl != old_ptl)
> > > +			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
> > > +
> > > +		/* Clear the pmd */
> > > +		pmd = *old_pmd;
> > > +		pmd_clear(old_pmd);  
> > 
> > Adding Martin Schwidefsky.
> > Is this mapping maybe still in use on other CPUs? If yes, I think for
> > s390 we need to flush here as well (in other word we might need to introduce
> > pmd_clear_flush). On s390 you have to use instructions like CRDTE,IPTE or IDTE
> > to modify page table entries that are still in use. Otherwise you can get a 
> > delayed access exception which is - in contrast to page faults - not recoverable.
> 
> Just clearing an active pmd would be broken for s390. We need the equivalent
> of the ptep_get_and_clear() function for pmds. For s390 this function would
> look like this:
> 
> static inline pte_t pmdp_get_and_clear(struct mm_struct *mm,
>                                        unsigned long addr, pmd_t *pmdp)
> {
>         return pmdp_xchg_lazy(mm, addr, pmdp, __pmd(_SEGMENT_ENTRY_INVALID));
> }
> 
> Just like pmdp_huge_get_and_clear() in fact.

I agree architecture like s390 may need additional explicit instructions to
avoid any unrecoverable failure. So the good news is in my last patch I sent, I
have put this behind an architecture flag (HAVE_MOVE_PMD), so we don't have
to enable it with architectures that cannot handle it:
https://www.spinics.net/lists/linux-mm/msg163621.html

Also we are triggering this optimization only if the page is not a transparent
huge page by calling pmd_trans_huge(). For regular pages, it should be safe to
not do the atomic get_and_clear AIUI because Linux doesn't use any bits from
the PMD like the dirty bit if THP is not in use (and the processors that I
saw (not s390) should not storing anything in the bits anyway when the page
is not a huge page. I have gone through various scenarios and read both arm
32-bit and 64-bit and x86 64-bit manuals, and I believe it to be safe.

For s390, lets not set the HAVE_MOVE_PMD flag. Does that work for you?

> > > +
> > > +		VM_BUG_ON(!pmd_none(*new_pmd));
> > > +
> > > +		/* Set the new pmd */
> > > +		set_pmd_at(mm, new_addr, new_pmd, pmd);
> > > +		if (new_ptl != old_ptl)
> > > +			spin_unlock(new_ptl);
> > > +		spin_unlock(old_ptl);
> > > +
> > > +		*need_flush = true;
> > > +		return true;
> > > +	}
> > > +	return false;
> > > +}
> > > +
> 
> So the idea is to move the pmd entry to the new location, dragging
> the whole pte table to a new location with a different address.
> I wonder if that is safe in regard to get_user_pages_fast().

Could you elaborate why you feel it may not be?

Are you concerned that the PMD moving interferes with the page walk? Incase
the tree changes during page-walking, the number of pages pinned by
get_user_pages_fast may be less than the number requested. In this case,
get_user_pages_fast would fall back to the slow path which should be
synchronized with the mremap by courtesy of the mm->mmap_sem. But please let
me know the scenario you have in mind and if I missed something.

thanks,

 - Joel

From - Thu Nov 08 21:42:18 2018
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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH] extract-vmlinux: Check for uncompressed image as fallback
Date: Tue, 16 Oct 2018 08:03:24 +0200
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Xref: news.gmane.org gmane.linux.kernel:2900247 gmane.linux.ports.parisc:29194
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As on x86-64 and other architectures, the boot kernel on parisc (vmlinuz
and bzImage) contains a full compressed copy of the final kernel
executable (vmlinux.bin.gz), which one should be able to extract with
the extract-vmlinux script.

But on parisc extracting the kernel with extract-vmlinux fails.
Currently the script first checks if the given file is an ELF file
(which is true on parisc) and if so returns it.  Thus on parisc we
unexpectedly get back the vmlinuz boot file instead of the uncompressed
vmlinux image.

This patch fixes this issue by reverting the logic. It now first tries
to find a compression signature in the given file and if that fails it
checks the file itself as fallback.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/scripts/extract-vmlinux b/scripts/extract-vmlinux
index e6239f39abad..85e1f32fb4a0 100755
--- a/scripts/extract-vmlinux
+++ b/scripts/extract-vmlinux
@@ -48,9 +48,6 @@ fi
 tmp=$(mktemp /tmp/vmlinux-XXX)
 trap "rm -f $tmp" 0
 
-# Initial attempt for uncompressed images or objects:
-check_vmlinux $img
-
 # That didn't work, so retry after decompression.
 try_decompress '\037\213\010' xy    gunzip
 try_decompress '\3757zXZ\000' abcde unxz
@@ -60,5 +57,8 @@ try_decompress '\211\114\132' xy    'lzop -d'
 try_decompress '\002!L\030'   xxx   'lz4 -d'
 try_decompress '(\265/\375'   xxx   unzstd
 
+# Finally check for uncompressed images or objects:
+check_vmlinux $img
+
 # Bail out:
 echo "$me: Cannot find vmlinux." >&2


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The purpose of this patch series is, we can easily add/modify/delete
system call table support by changing entry in syscall.tbl file 
instead of manually changing many files. The other goal is to unify 
the system call table generation support implementation across all 
the architectures. 

The system call tables are in different format in all architecture. It
will be difficult to manually add, modify or delete the system calls
in the respective files manually. To make it easy by keeping a script 
and which'll generate uapi header file and syscall table file.

syscall.tbl contains the list of available system calls along with 
system call number and corresponding entry point. Add a new system 
call in this architecture will be possible by adding new entry in 
the syscall.tbl file.

Adding a new table entry consisting of:
        - System call number.
        - ABI.
        - System call name.
        - Entry point name.
        - Compat entry name, if required.

ARM, s390 and x86 architecuture does exist the similar support. I 
leverage their implementation to come up with a generic solution.

I have done the same support for work for alpha, microblaze, sparc,
m68k, mips, powerpc, sh, sparc, and xtensa. But I started sending 
the patch for one architecuture for review. Below mentioned git
repository contains more details.
Git repo:- https://github.com/frzkhn/system_call_table_generator/

Finally, this is the ground work for solving the Y2038 issue. We 
need to add two dozen of system calls to solve Y2038 issue. So this
patch series will help to add new system calls easily by adding new
entry in the syscall.tbl.

Firoz Khan (5):
  parisc: move __IGNORE* entries to non uapi header
  parisc: add __NR_syscalls along with __NR_Linux_syscalls
  parisc: add system call table generation support
  parisc: uapi header and system call table file generation
  parisc: syscalls: ignore nfsservctl for other architectures

 arch/parisc/Makefile                      |   4 +
 arch/parisc/include/asm/Kbuild            |   3 +
 arch/parisc/include/asm/unistd.h          |   8 +
 arch/parisc/include/uapi/asm/Kbuild       |   2 +
 arch/parisc/include/uapi/asm/unistd.h     | 382 +------------------------
 arch/parisc/kernel/syscall.S              |  10 +-
 arch/parisc/kernel/syscall_table.S        | 459 ------------------------------
 arch/parisc/kernel/syscalls/Makefile      |  57 ++++
 arch/parisc/kernel/syscalls/syscall.tbl   | 369 ++++++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscallhdr.sh |  34 +++
 arch/parisc/kernel/syscalls/syscalltbl.sh |  36 +++
 scripts/checksyscalls.sh                  |   1 +
 12 files changed, 529 insertions(+), 836 deletions(-)
 delete mode 100644 arch/parisc/kernel/syscall_table.S
 create mode 100644 arch/parisc/kernel/syscalls/Makefile
 create mode 100644 arch/parisc/kernel/syscalls/syscall.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
 create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh

-- 
1.9.1



From - Thu Nov 08 21:42:18 2018
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v5 1/5] parisc: move __IGNORE* entries to non uapi header
Date: Tue, 16 Oct 2018 12:33:34 +0530
Lines: 57
Approved: news@gmane.org
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        linux-arch@vger.kernel.org, arnd@arndb.de, deepa.kernel@gmail.com,
        marcin.juszkiewicz@linaro.org, firoz.khan@linaro.org
To: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Philippe Ombredanne <pombredanne@nexb.com>,
        Kate Stewart <kstewart@linuxfoundation.org>
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All the __IGNORE* entries are resides in the uapi header
file move to non uapi header asm/unistd.h as it is not
used by any user space applications.

It is correct to keep __IGNORE* entry in non uapi header
asm/unistd.h while uapi/asm/unistd.h must hold information
only useful for user space applications.

One of the patch in this patch series will generate uapi
header file. The information which directly used by the
user space application must be present in uapi file.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/include/asm/unistd.h      | 6 ++++++
 arch/parisc/include/uapi/asm/unistd.h | 7 -------
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 3d507d0..93fd9f6 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -8,6 +8,12 @@
 
 #define SYS_ify(syscall_name)   __NR_##syscall_name
 
+#define __IGNORE_select                /* newselect */
+#define __IGNORE_fadvise64             /* fadvise64_64 */
+#define __IGNORE_pkey_mprotect
+#define __IGNORE_pkey_alloc
+#define __IGNORE_pkey_free
+
 #ifndef ASM_LINE_SEP
 # define ASM_LINE_SEP ;
 #endif
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index dc77c5a..bb52e12 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -368,13 +368,6 @@
 
 #define __NR_Linux_syscalls	(__NR_io_pgetevents + 1)
 
-
-#define __IGNORE_select		/* newselect */
-#define __IGNORE_fadvise64	/* fadvise64_64 */
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
-
 #define LINUX_GATEWAY_ADDR      0x100
 
 #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */
-- 
1.9.1



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Subject: [PATCH v5 2/5] parisc: add __NR_syscalls along with __NR_Linux_syscalls
Date: Tue, 16 Oct 2018 12:33:35 +0530
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__NR_Linux_syscalls macro holds the number of system call
exist in PARISC architecture. This macro is currently the
part of uapi/asm/unistd.h file. We have to change the value
of __NR_Linux_syscalls, if we add or delete a system call.

One of the patch in this patch series has a script which
will generate a uapi header based on syscall.tbl file. The
syscall.tbl file contains the number of system call inform-
ation. So we have two option to update __NR_Linux_syscalls
value.

1. Update __NR_Linux_syscalls in uapi/asm/unistd.h manually
   by counting the no.of system calls. No need to update
   __NR_Linux_syscalls until we either add a new system call
   or delete an existing system call.

2. We can keep this feature it above mentioned script, that
   will count the number of syscalls and keep it in a gener-
   ated file. In this case we don't need to explicitly update
   __NR_Linux_syscalls in asm/unistd.h file.

The 2nd option will be the recommended one. For that, I moved
the __NR_Linux_syscalls macro from uapi/asm/unistd.h to asm/
unistd.h. The macro __NR_syscalls also added for making the
name convention same across all architecture. While __NR_sys-
calls isn't strictly part of the uapi, having it as part of
the generated header to simplifies the implementation. We also
need to enclose this macro with #ifdef __KERNEL__ to avoid
side effects.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/include/asm/unistd.h      | 2 ++
 arch/parisc/include/uapi/asm/unistd.h | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 93fd9f6..d30fdbcb 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -4,6 +4,8 @@
 
 #include <uapi/asm/unistd.h>
 
+#define __NR_Linux_syscalls     __NR_syscalls
+
 #ifndef __ASSEMBLY__
 
 #define SYS_ify(syscall_name)   __NR_##syscall_name
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index bb52e12..f10d065 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -366,7 +366,9 @@
 #define __NR_statx		(__NR_Linux + 349)
 #define __NR_io_pgetevents	(__NR_Linux + 350)
 
-#define __NR_Linux_syscalls	(__NR_io_pgetevents + 1)
+#ifdef __KERNEL__
+#define __NR_syscalls           351
+#endif
 
 #define LINUX_GATEWAY_ADDR      0x100
 
-- 
1.9.1



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The system call tables are in different format in all
architecture and it will be difficult to manually add or
modify the system calls in the respective files. To make
it easy by keeping a script and which willll generate the
uapi header and syscall table file. This change will also
help to unify the implementation across all architectures.

The system call table generation script is added in
syscalls directory which contain the script to generate
both uapi header file and system call table files.
The syscall.tbl file will be the input for the scripts.

syscall.tbl contains the list of available system calls
along with system call number and corresponding entry point.
Add a new system call in this architecture will be possible
by adding new entry in the syscall.tbl file.

Adding a new table entry consisting of:
        - System call number.
        - ABI.
        - System call name.
        - Entry point name.
	- Compat entry name, if required.

syscallhdr.sh and syscalltbl.sh will generate uapi header-
unistd_32/64.h and syscall_table_32/64/c32.h files respect-
ively. File syscall_table_32/64/c32.h is included by sys-
call.S - the real system call table. Both .sh files will
parse the content syscall.tbl to generate the header and
table files.

ARM, s390 and x86 architecuture does have the similar support.
I leverage their implementation to come up with a generic
solution.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/kernel/syscalls/Makefile      |  57 +++++
 arch/parisc/kernel/syscalls/syscall.tbl   | 369 ++++++++++++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscallhdr.sh |  34 +++
 arch/parisc/kernel/syscalls/syscalltbl.sh |  36 +++
 4 files changed, 496 insertions(+)
 create mode 100644 arch/parisc/kernel/syscalls/Makefile
 create mode 100644 arch/parisc/kernel/syscalls/syscall.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
 create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh

diff --git a/arch/parisc/kernel/syscalls/Makefile b/arch/parisc/kernel/syscalls/Makefile
new file mode 100644
index 0000000..1701ab0
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/Makefile
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0
+kapi := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
+
+_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
+	  $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
+
+syscall := $(srctree)/$(src)/syscall.tbl
+syshdr := $(srctree)/$(src)/syscallhdr.sh
+systbl := $(srctree)/$(src)/syscalltbl.sh
+
+quiet_cmd_syshdr = SYSHDR  $@
+      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'  \
+		   '$(syshdr_abis_$(basetarget))'         \
+		   '$(syshdr_pfx_$(basetarget))'          \
+		   '$(syshdr_offset_$(basetarget))'
+
+quiet_cmd_systbl = SYSTBL  $@
+      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'  \
+		   '$(systbl_abis_$(basetarget))'         \
+		   '$(systbl_abi_$(basetarget))'          \
+		   '$(systbl_offset_$(basetarget))'
+
+syshdr_abis_unistd_32 := common,32
+syshdr_offset_unistd_32 := __NR_Linux
+$(uapi)/unistd_32.h: $(syscall) $(syshdr)
+	$(call if_changed,syshdr)
+
+syshdr_abis_unistd_64 := common,64
+syshdr_offset_unistd_64 := __NR_Linux
+$(uapi)/unistd_64.h: $(syscall) $(syshdr)
+	$(call if_changed,syshdr)
+
+systbl_abis_syscall_table_32 := common,32
+$(kapi)/syscall_table_32.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+systbl_abis_syscall_table_64 := common,64
+$(kapi)/syscall_table_64.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+systbl_abis_syscall_table_c32 := common,32
+systbl_abi_syscall_table_c32 := c32
+$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+uapisyshdr-y		+= unistd_32.h unistd_64.h
+kapisyshdr-y		+= syscall_table_32.h     \
+			   syscall_table_64.h     \
+			   syscall_table_c32.h
+
+targets	+= $(uapisyshdr-y) $(kapisyshdr-y)
+
+PHONY += all
+all: $(addprefix $(uapi)/,$(uapisyshdr-y))
+all: $(addprefix $(kapi)/,$(kapisyshdr-y))
+	@:
diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
new file mode 100644
index 0000000..9bbd2f9
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -0,0 +1,369 @@
+# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
+#
+# system call numbers and entry vectors for parisc
+#
+# The format is:
+# <number> <abi> <name> <entry point> <compat entry point>
+#
+# The <abi> can be common, 64, or 32 for this file.
+#
+0	common	restart_syscall		sys_restart_syscall
+1	common	exit			sys_exit
+2	common	fork			sys_fork_wrapper
+3	common	read			sys_read
+4	common	write			sys_write
+5	common	open			sys_open			compat_sys_open
+6	common	close			sys_close
+7	common	waitpid			sys_waitpid
+8	common	creat			sys_creat
+9	common	link			sys_link
+10	common	unlink			sys_unlink
+11	common	execve			sys_execve			compat_sys_execve
+12	common	chdir			sys_chdir
+13	common	time			sys_time			compat_sys_time
+14	common	mknod			sys_mknod
+15	common	chmod			sys_chmod
+16	common	lchown			sys_lchown
+17	common	socket			sys_socket
+18	common	stat			sys_newstat			compat_sys_newstat
+19	common	lseek			sys_lseek			compat_sys_lseek
+20	common	getpid			sys_getpid
+21	common	mount			sys_mount			compat_sys_mount
+22	common	bind			sys_bind
+23	common	setuid			sys_setuid
+24	common	getuid			sys_getuid
+25	common	stime			sys_stime			compat_sys_stime
+26	common	ptrace			sys_ptrace			compat_sys_ptrace
+27	common	alarm			sys_alarm
+28	common	fstat			sys_newfstat			compat_sys_newfstat
+29	common	pause			sys_pause
+30	common	utime			sys_utime			compat_sys_utime
+31	common	connect			sys_connect
+32	common	listen			sys_listen
+33	common	access			sys_access
+34	common	nice			sys_nice
+35	common	accept			sys_accept
+36	common	sync			sys_sync
+37	common	kill			sys_kill
+38	common	rename			sys_rename
+39	common	mkdir			sys_mkdir
+40	common	rmdir			sys_rmdir
+41	common	dup			sys_dup
+42	common	pipe			sys_pipe
+43	common	times			sys_times			compat_sys_times
+44	common	getsockname		sys_getsockname
+45	common	brk			sys_brk
+46	common	setgid			sys_setgid
+47	common	getgid			sys_getgid
+48	common	signal			sys_signal
+49	common	geteuid			sys_geteuid
+50	common	getegid			sys_getegid
+51	common	acct			sys_acct
+52	common	umount2			sys_umount
+53	common	getpeername		sys_getpeername
+54	common	ioctl			sys_ioctl			compat_sys_ioctl
+55	common	fcntl			sys_fcntl			compat_sys_fcntl
+56	common	socketpair		sys_socketpair
+57	common	setpgid			sys_setpgid
+58	common	send			sys_send
+59	common	uname			sys_newuname
+60	common	umask			sys_umask
+61	common	chroot			sys_chroot
+62	common	ustat			sys_ustat			compat_sys_ustat
+63	common	dup2			sys_dup2
+64	common	getppid			sys_getppid
+65	common	getpgrp			sys_getpgrp
+66	common	setsid			sys_setsid
+67	common	pivot_root		sys_pivot_root
+68	common	sgetmask		sys_sgetmask			sys32_unimplemented
+69	common	ssetmask		sys_ssetmask			sys32_unimplemented
+70	common	setreuid		sys_setreuid
+71	common	setregid		sys_setregid
+72	common	mincore			sys_mincore
+73	common	sigpending		sys_sigpending			compat_sys_sigpending
+74	common	sethostname		sys_sethostname
+75	common	setrlimit		sys_setrlimit			compat_sys_setrlimit
+76	common	getrlimit		sys_getrlimit			compat_sys_getrlimit
+77	common	getrusage		sys_getrusage			compat_sys_getrusage
+78	common	gettimeofday		sys_gettimeofday		compat_sys_gettimeofday
+79	common	settimeofday		sys_settimeofday		compat_sys_settimeofday
+80	common	getgroups		sys_getgroups
+81	common	setgroups		sys_setgroups
+82	common	sendto			sys_sendto
+83	common	symlink			sys_symlink
+84	common	lstat			sys_newlstat			compat_sys_newlstat
+85	common	readlink		sys_readlink
+86	common	uselib			sys_ni_syscall
+87	common	swapon			sys_swapon
+88	common	reboot			sys_reboot
+89	common	mmap2			sys_mmap2
+90	common	mmap			sys_mmap
+91	common	munmap			sys_munmap
+92	common	truncate		sys_truncate			compat_sys_truncate
+93	common	ftruncate		sys_ftruncate			compat_sys_ftruncate
+94	common	fchmod			sys_fchmod
+95	common	fchown			sys_fchown
+96	common	getpriority		sys_getpriority
+97	common	setpriority		sys_setpriority
+98	common	recv			sys_recv
+99	common	statfs			sys_statfs			compat_sys_statfs
+100	common	fstatfs			sys_fstatfs			compat_sys_fstatfs
+101	common	stat64			sys_stat64
+# 102 was socketcall
+103	common	syslog			sys_syslog
+104	common	setitimer		sys_setitimer			compat_sys_setitimer
+105	common	getitimer		sys_getitimer			compat_sys_getitimer
+106	common	capget			sys_capget
+107	common	capset			sys_capset
+108	32	pread64			parisc_pread64
+108	64	pread64			sys_pread64
+109	32	pwrite64		parisc_pwrite64
+109	64	pwrite64		sys_pwrite64
+110	common	getcwd			sys_getcwd
+111	common	vhangup			sys_vhangup
+112	common	fstat64			sys_fstat64
+113	common	vfork			sys_vfork_wrapper
+114	common	wait4			sys_wait4			compat_sys_wait4
+115	common	swapoff			sys_swapoff
+116	common	sysinfo			sys_sysinfo			compat_sys_sysinfo
+117	common	shutdown		sys_shutdown
+118	common	fsync			sys_fsync
+119	common	madvise			sys_madvise
+120	common	clone			sys_clone_wrapper
+121	common	setdomainname		sys_setdomainname
+122	common	sendfile		sys_sendfile			compat_sys_sendfile
+123	common	recvfrom		sys_recvfrom
+124	common	adjtimex		sys_adjtimex			compat_sys_adjtimex
+125	common	mprotect		sys_mprotect
+126	common	sigprocmask		sys_sigprocmask			compat_sys_sigprocmask
+# 127 was create_module
+128	common	init_module		sys_init_module
+129	common	delete_module		sys_delete_module
+# 130 was get_kernel_syms
+131	common	quotactl		sys_quotactl
+132	common	getpgid			sys_getpgid
+133	common	fchdir			sys_fchdir
+134	common	bdflush			sys_bdflush
+135	common	sysfs			sys_sysfs
+136	32	personality		parisc_personality
+136	64	personality		sys_personality
+# 137 was afs_syscall
+138	common	setfsuid		sys_setfsuid
+139	common	setfsgid		sys_setfsgid
+140	common	_llseek			sys_llseek
+141	common	getdents		sys_getdents			compat_sys_getdents
+142	common	_newselect		sys_select			compat_sys_select
+143	common	flock			sys_flock
+144	common	msync			sys_msync
+145	common	readv			sys_readv			compat_sys_readv
+146	common	writev			sys_writev			compat_sys_writev
+147	common	getsid			sys_getsid
+148	common	fdatasync		sys_fdatasync
+149	common	_sysctl			sys_sysctl			compat_sys_sysctl
+150	common	mlock			sys_mlock
+151	common	munlock			sys_munlock
+152	common	mlockall		sys_mlockall
+153	common	munlockall		sys_munlockall
+154	common	sched_setparam		sys_sched_setparam
+155	common	sched_getparam		sys_sched_getparam
+156	common	sched_setscheduler	sys_sched_setscheduler
+157	common	sched_getscheduler	sys_sched_getscheduler
+158	common	sched_yield		sys_sched_yield
+159	common	sched_get_priority_max	sys_sched_get_priority_max
+160	common	sched_get_priority_min	sys_sched_get_priority_min
+161	common	sched_rr_get_interval	sys_sched_rr_get_interval	compat_sys_sched_rr_get_interval
+162	common	nanosleep		sys_nanosleep			compat_sys_nanosleep
+163	common	mremap			sys_mremap
+164	common	setresuid		sys_setresuid
+165	common	getresuid		sys_getresuid
+166	common	sigaltstack		sys_sigaltstack			compat_sys_sigaltstack
+# 167 was query_module
+168	common	poll			sys_poll
+# 169 was nfsservctl
+170	common	setresgid		sys_setresgid
+171	common	getresgid		sys_getresgid
+172	common	prctl			sys_prctl
+173	common	rt_sigreturn		sys_rt_sigreturn_wrapper
+174	common	rt_sigaction		sys_rt_sigaction		compat_sys_rt_sigaction
+175	common	rt_sigprocmask		sys_rt_sigprocmask		compat_sys_rt_sigprocmask
+176	common	rt_sigpending		sys_rt_sigpending		compat_sys_rt_sigpending
+177	common	rt_sigtimedwait		sys_rt_sigtimedwait		compat_sys_rt_sigtimedwait
+178	common	rt_sigqueueinfo		sys_rt_sigqueueinfo		compat_sys_rt_sigqueueinfo
+179	common	rt_sigsuspend		sys_rt_sigsuspend		compat_sys_rt_sigsuspend
+180	common	chown			sys_chown
+181	common	setsockopt		sys_setsockopt			compat_sys_setsockopt
+182	common	getsockopt		sys_getsockopt			compat_sys_getsockopt
+183	common	sendmsg			sys_sendmsg			compat_sys_sendmsg
+184	common	recvmsg			sys_recvmsg			compat_sys_recvmsg
+185	common	semop			sys_semop
+186	common	semget			sys_semget
+187	common	semctl			sys_semctl			compat_sys_semctl
+188	common	msgsnd			sys_msgsnd			compat_sys_msgsnd
+189	common	msgrcv			sys_msgrcv			compat_sys_msgrcv
+190	common	msgget			sys_msgget
+191	common	msgctl			sys_msgctl			compat_sys_msgctl
+192	common	shmat			sys_shmat			compat_sys_shmat
+193	common	shmdt			sys_shmdt
+194	common	shmget			sys_shmget
+195	common	shmctl			sys_shmctl			compat_sys_shmctl
+# 196 was getpmsg
+# 197 was putpmsg
+198	common	lstat64			sys_lstat64
+199	32	truncate64		parisc_truncate64
+199	64	truncate64		sys_truncate64
+200	32	ftruncate64		parisc_ftruncate64
+200	64	ftruncate64		sys_ftruncate64
+201	common	getdents64		sys_getdents64
+202	common	fcntl64			sys_fcntl64			compat_sys_fcntl64
+# 203 was attrctl
+# 204 was acl_get
+# 205 was acl_set
+206	common	gettid			sys_gettid
+207	32	readahead		parisc_readahead
+207	64	readahead		sys_readahead
+208	common	tkill			sys_tkill
+209	common	sendfile64		sys_sendfile64			compat_sys_sendfile64
+210	common	futex			sys_futex			compat_sys_futex
+211	common	sched_setaffinity	sys_sched_setaffinity		compat_sys_sched_setaffinity
+212	common	sched_getaffinity	sys_sched_getaffinity		compat_sys_sched_getaffinity
+# 213 was set_thread_area
+# 214 was get_thread_area
+215	common	io_setup		sys_io_setup			compat_sys_io_setup
+216	common	io_destroy		sys_io_destroy
+217	common	io_getevents		sys_io_getevents		compat_sys_io_getevents
+218	common	io_submit		sys_io_submit			compat_sys_io_submit
+219	common	io_cancel		sys_io_cancel
+# 220 was alloc_hugepages
+# 221 was free_hugepages
+222	common	exit_group		sys_exit_group
+223	common	lookup_dcookie		sys_lookup_dcookie		compat_sys_lookup_dcookie
+224	common	epoll_create		sys_epoll_create
+225	common	epoll_ctl		sys_epoll_ctl
+226	common	epoll_wait		sys_epoll_wait
+227	common	remap_file_pages	sys_remap_file_pages
+228	common	semtimedop		sys_semtimedop			compat_sys_semtimedop
+229	common	mq_open			sys_mq_open			compat_sys_mq_open
+230	common	mq_unlink		sys_mq_unlink
+231	common	mq_timedsend		sys_mq_timedsend		compat_sys_mq_timedsend
+232	common	mq_timedreceive		sys_mq_timedreceive		compat_sys_mq_timedreceive
+233	common	mq_notify		sys_mq_notify			compat_sys_mq_notify
+234	common	mq_getsetattr		sys_mq_getsetattr		compat_sys_mq_getsetattr
+235	common	waitid			sys_waitid			compat_sys_waitid
+236	32	fadvise64_64		parisc_fadvise64_64
+236	64	fadvise64_64		sys_fadvise64_64
+237	common	set_tid_address		sys_set_tid_address
+238	common	setxattr		sys_setxattr
+239	common	lsetxattr		sys_lsetxattr
+240	common	fsetxattr		sys_fsetxattr
+241	common	getxattr		sys_getxattr
+242	common	lgetxattr		sys_lgetxattr
+243	common	fgetxattr		sys_fgetxattr
+244	common	listxattr		sys_listxattr
+245	common	llistxattr		sys_llistxattr
+246	common	flistxattr		sys_flistxattr
+247	common	removexattr		sys_removexattr
+248	common	lremovexattr		sys_lremovexattr
+249	common	fremovexattr		sys_fremovexattr
+250	common	timer_create		sys_timer_create		compat_sys_timer_create
+251	common	timer_settime		sys_timer_settime		compat_sys_timer_settime
+252	common	timer_gettime		sys_timer_gettime		compat_sys_timer_gettime
+253	common	timer_getoverrun	sys_timer_getoverrun
+254	common	timer_delete		sys_timer_delete
+255	common	clock_settime		sys_clock_settime		compat_sys_clock_settime
+256	common	clock_gettime		sys_clock_gettime		compat_sys_clock_gettime
+257	common	clock_getres		sys_clock_getres		compat_sys_clock_getres
+258	common	clock_nanosleep		sys_clock_nanosleep		compat_sys_clock_nanosleep
+259	common	tgkill			sys_tgkill
+260	common	mbind			sys_mbind			compat_sys_mbind
+261	common	get_mempolicy		sys_get_mempolicy		compat_sys_get_mempolicy
+262	common	set_mempolicy		sys_set_mempolicy		compat_sys_set_mempolicy
+# 263 was vserver
+264	common	add_key			sys_add_key
+265	common	request_key		sys_request_key
+266	common	keyctl			sys_keyctl			compat_sys_keyctl
+267	common	ioprio_set		sys_ioprio_set
+268	common	ioprio_get		sys_ioprio_get
+269	common	inotify_init		sys_inotify_init
+270	common	inotify_add_watch	sys_inotify_add_watch
+271	common	inotify_rm_watch	sys_inotify_rm_watch
+272	common	migrate_pages		sys_migrate_pages
+273	common	pselect6		sys_pselect6			compat_sys_pselect6
+274	common	ppoll			sys_ppoll			compat_sys_ppoll
+275	common	openat			sys_openat			compat_sys_openat
+276	common	mkdirat			sys_mkdirat
+277	common	mknodat			sys_mknodat
+278	common	fchownat		sys_fchownat
+279	common	futimesat		sys_futimesat			compat_sys_futimesat
+280	common	fstatat64		sys_fstatat64
+281	common	unlinkat		sys_unlinkat
+282	common	renameat		sys_renameat
+283	common	linkat			sys_linkat
+284	common	symlinkat		sys_symlinkat
+285	common	readlinkat		sys_readlinkat
+286	common	fchmodat		sys_fchmodat
+287	common	faccessat		sys_faccessat
+288	common	unshare			sys_unshare
+289	common	set_robust_list		sys_set_robust_list		compat_sys_set_robust_list
+290	common	get_robust_list		sys_get_robust_list		compat_sys_get_robust_list
+291	common	splice			sys_splice
+292	32	sync_file_range		parisc_sync_file_range
+292	64	sync_file_range		sys_sync_file_range
+293	common	tee			sys_tee
+294	common	vmsplice		sys_vmsplice			compat_sys_vmsplice
+295	common	move_pages		sys_move_pages			compat_sys_move_pages
+296	common	getcpu			sys_getcpu
+297	common	epoll_pwait		sys_epoll_pwait			compat_sys_epoll_pwait
+298	common	statfs64		sys_statfs64			compat_sys_statfs64
+299	common	fstatfs64		sys_fstatfs64			compat_sys_fstatfs64
+300	common	kexec_load		sys_kexec_load			compat_sys_kexec_load
+301	common	utimensat		sys_utimensat			compat_sys_utimensat
+302	common	signalfd		sys_signalfd			compat_sys_signalfd
+# 303 was timerfd
+304	common	eventfd			sys_eventfd
+305	32	fallocate		parisc_fallocate
+305	64	fallocate		sys_fallocate
+306	common	timerfd_create		sys_timerfd_create
+307	common	timerfd_settime		sys_timerfd_settime		compat_sys_timerfd_settime
+308	common	timerfd_gettime		sys_timerfd_gettime		compat_sys_timerfd_gettime
+309	common	signalfd4		sys_signalfd4			compat_sys_signalfd4
+310	common	eventfd2		sys_eventfd2
+311	common	epoll_create1		sys_epoll_create1
+312	common	dup3			sys_dup3
+313	common	pipe2			sys_pipe2
+314	common	inotify_init1		sys_inotify_init1
+315	common	preadv	sys_preadv	compat_sys_preadv
+316	common	pwritev	sys_pwritev	compat_sys_pwritev
+317	common	rt_tgsigqueueinfo	sys_rt_tgsigqueueinfo		compat_sys_rt_tgsigqueueinfo
+318	common	perf_event_open		sys_perf_event_open
+319	common	recvmmsg		sys_recvmmsg			compat_sys_recvmmsg
+320	common	accept4			sys_accept4
+321	common	prlimit64		sys_prlimit64
+322	common	fanotify_init		sys_fanotify_init
+323	common	fanotify_mark		sys_fanotify_mark		sys32_fanotify_mark
+324	common	clock_adjtime		sys_clock_adjtime		compat_sys_clock_adjtime
+325	common	name_to_handle_at	sys_name_to_handle_at
+326	common	open_by_handle_at	sys_open_by_handle_at		compat_sys_open_by_handle_at
+327	common	syncfs			sys_syncfs
+328	common	setns			sys_setns
+329	common	sendmmsg		sys_sendmmsg			compat_sys_sendmmsg
+330	common	process_vm_readv	sys_process_vm_readv		compat_sys_process_vm_readv
+331	common	process_vm_writev	sys_process_vm_writev		compat_sys_process_vm_writev
+332	common	kcmp			sys_kcmp
+333	common	finit_module		sys_finit_module
+334	common	sched_setattr		sys_sched_setattr
+335	common	sched_getattr		sys_sched_getattr
+336	common	utimes			sys_utimes			compat_sys_utimes
+337	common	renameat2		sys_renameat2
+338	common	seccomp			sys_seccomp
+339	common	getrandom		sys_getrandom
+340	common	memfd_create		sys_memfd_create
+341	common	bpf			sys_bpf
+342	common	execveat		sys_execveat			compat_sys_execveat
+343	common	membarrier		sys_membarrier
+344	common	userfaultfd		sys_userfaultfd
+345	common	mlock2			sys_mlock2
+346	common	copy_file_range		sys_copy_file_range
+347	common	preadv2			sys_preadv2			compat_sys_preadv2
+348	common	pwritev2		sys_pwritev2			compat_sys_pwritev2
+349	common	statx			sys_statx
+350	common	io_pgetevents		sys_io_pgetevents		compat_sys_io_pgetevents
diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh b/arch/parisc/kernel/syscalls/syscallhdr.sh
new file mode 100644
index 0000000..1bd164f
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+prefix="$4"
+offset="$5"
+
+fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
+	-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+	-e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+	echo "#ifndef ${fileguard}"
+	echo "#define ${fileguard}"
+	echo ""
+
+	nxt=0
+	while read nr abi name entry compat ; do
+		if [ -z "$offset" ]; then
+			echo -e "#define __NR_${prefix}${name}\t$nr"
+		else
+			echo -e "#define __NR_${prefix}${name}\t($offset + $nr)"
+		fi
+		nxt=$((nr+1))
+	done
+
+	echo ""
+	echo "#ifdef __KERNEL__"
+	echo -e "#define __NR_syscalls\t$nxt"
+	echo "#endif"
+	echo ""
+	echo "#endif /* ${fileguard} */"
+) > "$out"
diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh b/arch/parisc/kernel/syscalls/syscalltbl.sh
new file mode 100644
index 0000000..1880051
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscalltbl.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+my_abi="$4"
+offset="$5"
+
+emit() {
+	nxt="$1"
+	nr="$2"
+	entry="$3"
+
+	while [ $nxt -lt $nr ]; do
+		echo "__SYSCALL($nxt, sys_ni_syscall, )"
+		nxt=$((nxt+1))
+	done
+	echo "__SYSCALL($nxt, $entry, )"
+}
+
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+	nxt=0
+	if [ -z "$offset" ]; then
+		offset=0
+	fi
+
+	while read nr abi name entry compat ; do
+		if [ "$my_abi" = "c32" ] && [ ! -z "$compat" ]; then
+			emit $((nxt+offset)) $((nr+offset)) $compat
+		else
+			emit $((nxt+offset)) $((nr+offset)) $entry
+		fi
+		nxt=$((nxt+1))
+	done
+) > "$out"
-- 
1.9.1



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Subject: [PATCH v5 4/5] parisc: uapi header and system call table file generation
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System call table generation script must be run to generate
unistd_32/64.h and syscall_table_32/64/c32.h files. This patch
will have changes which will invokes the script.

This patch will generate unistd_32/64.h and syscall_table_
32/64/c32.h files by the syscall table generation script
invoked by arch/parisc/Makefile and the generated files against
the removed files will be identical.

The generated uapi header file will be included in uapi/asm/
unistd_32/64.h and generated system call table support file will
be included by kernel/syscall.S file.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/Makefile                  |   4 +
 arch/parisc/include/asm/Kbuild        |   3 +
 arch/parisc/include/uapi/asm/Kbuild   |   2 +
 arch/parisc/include/uapi/asm/unistd.h | 373 +--------------------------
 arch/parisc/kernel/syscall.S          |  10 +-
 arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------
 6 files changed, 22 insertions(+), 829 deletions(-)
 delete mode 100644 arch/parisc/kernel/syscall_table.S

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5ce0302..6b217da 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -159,6 +159,10 @@ endef
 
 # we require gcc 3.3 or above to compile the kernel
 archprepare: checkbin
+
+archheaders:
+	$(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all
+
 checkbin:
 	@if test "$(cc-version)" -lt "0303"; then \
 		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 2013d63..6b66fb9 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -23,3 +23,6 @@ generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += syscall_table_32.h
+generic-y += syscall_table_64.h
+generic-y += syscall_table_c32.h
diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
index 286ef5a..04360d9 100644
--- a/arch/parisc/include/uapi/asm/Kbuild
+++ b/arch/parisc/include/uapi/asm/Kbuild
@@ -7,3 +7,5 @@ generic-y += kvm_para.h
 generic-y += param.h
 generic-y += poll.h
 generic-y += resource.h
+generic-y += unistd_32.h
+generic-y += unistd_64.h
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index f10d065..518c1d6 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -2,374 +2,13 @@
 #ifndef _UAPI_ASM_PARISC_UNISTD_H_
 #define _UAPI_ASM_PARISC_UNISTD_H_
 
-/*
- * Linux system call numbers.
- *
- * Cary Coutant says that we should just use another syscall gateway
- * page to avoid clashing with the HPUX space, and I think he's right:
- * it will would keep a branch out of our syscall entry path, at the
- * very least.  If we decide to change it later, we can ``just'' tweak
- * the LINUX_GATEWAY_ADDR define at the bottom and make __NR_Linux be
- * 1024 or something.  Oh, and recompile libc. =)
- */
-
-#define __NR_Linux                0
-#define __NR_restart_syscall      (__NR_Linux + 0)
-#define __NR_exit                 (__NR_Linux + 1)
-#define __NR_fork                 (__NR_Linux + 2)
-#define __NR_read                 (__NR_Linux + 3)
-#define __NR_write                (__NR_Linux + 4)
-#define __NR_open                 (__NR_Linux + 5)
-#define __NR_close                (__NR_Linux + 6)
-#define __NR_waitpid              (__NR_Linux + 7)
-#define __NR_creat                (__NR_Linux + 8)
-#define __NR_link                 (__NR_Linux + 9)
-#define __NR_unlink              (__NR_Linux + 10)
-#define __NR_execve              (__NR_Linux + 11)
-#define __NR_chdir               (__NR_Linux + 12)
-#define __NR_time                (__NR_Linux + 13)
-#define __NR_mknod               (__NR_Linux + 14)
-#define __NR_chmod               (__NR_Linux + 15)
-#define __NR_lchown              (__NR_Linux + 16)
-#define __NR_socket              (__NR_Linux + 17)
-#define __NR_stat                (__NR_Linux + 18)
-#define __NR_lseek               (__NR_Linux + 19)
-#define __NR_getpid              (__NR_Linux + 20)
-#define __NR_mount               (__NR_Linux + 21)
-#define __NR_bind                (__NR_Linux + 22)
-#define __NR_setuid              (__NR_Linux + 23)
-#define __NR_getuid              (__NR_Linux + 24)
-#define __NR_stime               (__NR_Linux + 25)
-#define __NR_ptrace              (__NR_Linux + 26)
-#define __NR_alarm               (__NR_Linux + 27)
-#define __NR_fstat               (__NR_Linux + 28)
-#define __NR_pause               (__NR_Linux + 29)
-#define __NR_utime               (__NR_Linux + 30)
-#define __NR_connect             (__NR_Linux + 31)
-#define __NR_listen              (__NR_Linux + 32)
-#define __NR_access              (__NR_Linux + 33)
-#define __NR_nice                (__NR_Linux + 34)
-#define __NR_accept              (__NR_Linux + 35)
-#define __NR_sync                (__NR_Linux + 36)
-#define __NR_kill                (__NR_Linux + 37)
-#define __NR_rename              (__NR_Linux + 38)
-#define __NR_mkdir               (__NR_Linux + 39)
-#define __NR_rmdir               (__NR_Linux + 40)
-#define __NR_dup                 (__NR_Linux + 41)
-#define __NR_pipe                (__NR_Linux + 42)
-#define __NR_times               (__NR_Linux + 43)
-#define __NR_getsockname         (__NR_Linux + 44)
-#define __NR_brk                 (__NR_Linux + 45)
-#define __NR_setgid              (__NR_Linux + 46)
-#define __NR_getgid              (__NR_Linux + 47)
-#define __NR_signal              (__NR_Linux + 48)
-#define __NR_geteuid             (__NR_Linux + 49)
-#define __NR_getegid             (__NR_Linux + 50)
-#define __NR_acct                (__NR_Linux + 51)
-#define __NR_umount2             (__NR_Linux + 52)
-#define __NR_getpeername         (__NR_Linux + 53)
-#define __NR_ioctl               (__NR_Linux + 54)
-#define __NR_fcntl               (__NR_Linux + 55)
-#define __NR_socketpair          (__NR_Linux + 56)
-#define __NR_setpgid             (__NR_Linux + 57)
-#define __NR_send                (__NR_Linux + 58)
-#define __NR_uname               (__NR_Linux + 59)
-#define __NR_umask               (__NR_Linux + 60)
-#define __NR_chroot              (__NR_Linux + 61)
-#define __NR_ustat               (__NR_Linux + 62)
-#define __NR_dup2                (__NR_Linux + 63)
-#define __NR_getppid             (__NR_Linux + 64)
-#define __NR_getpgrp             (__NR_Linux + 65)
-#define __NR_setsid              (__NR_Linux + 66)
-#define __NR_pivot_root          (__NR_Linux + 67)
-#define __NR_sgetmask            (__NR_Linux + 68)
-#define __NR_ssetmask            (__NR_Linux + 69)
-#define __NR_setreuid            (__NR_Linux + 70)
-#define __NR_setregid            (__NR_Linux + 71)
-#define __NR_mincore             (__NR_Linux + 72)
-#define __NR_sigpending          (__NR_Linux + 73)
-#define __NR_sethostname         (__NR_Linux + 74)
-#define __NR_setrlimit           (__NR_Linux + 75)
-#define __NR_getrlimit           (__NR_Linux + 76)
-#define __NR_getrusage           (__NR_Linux + 77)
-#define __NR_gettimeofday        (__NR_Linux + 78)
-#define __NR_settimeofday        (__NR_Linux + 79)
-#define __NR_getgroups           (__NR_Linux + 80)
-#define __NR_setgroups           (__NR_Linux + 81)
-#define __NR_sendto              (__NR_Linux + 82)
-#define __NR_symlink             (__NR_Linux + 83)
-#define __NR_lstat               (__NR_Linux + 84)
-#define __NR_readlink            (__NR_Linux + 85)
-#define __NR_uselib              (__NR_Linux + 86)
-#define __NR_swapon              (__NR_Linux + 87)
-#define __NR_reboot              (__NR_Linux + 88)
-#define __NR_mmap2               (__NR_Linux + 89)
-#define __NR_mmap                (__NR_Linux + 90)
-#define __NR_munmap              (__NR_Linux + 91)
-#define __NR_truncate            (__NR_Linux + 92)
-#define __NR_ftruncate           (__NR_Linux + 93)
-#define __NR_fchmod              (__NR_Linux + 94)
-#define __NR_fchown              (__NR_Linux + 95)
-#define __NR_getpriority         (__NR_Linux + 96)
-#define __NR_setpriority         (__NR_Linux + 97)
-#define __NR_recv                (__NR_Linux + 98)
-#define __NR_statfs              (__NR_Linux + 99)
-#define __NR_fstatfs            (__NR_Linux + 100)
-#define __NR_stat64             (__NR_Linux + 101)
-/* #define __NR_socketcall         (__NR_Linux + 102) */
-#define __NR_syslog             (__NR_Linux + 103)
-#define __NR_setitimer          (__NR_Linux + 104)
-#define __NR_getitimer          (__NR_Linux + 105)
-#define __NR_capget             (__NR_Linux + 106)
-#define __NR_capset             (__NR_Linux + 107)
-#define __NR_pread64            (__NR_Linux + 108)
-#define __NR_pwrite64           (__NR_Linux + 109)
-#define __NR_getcwd             (__NR_Linux + 110)
-#define __NR_vhangup            (__NR_Linux + 111)
-#define __NR_fstat64            (__NR_Linux + 112)
-#define __NR_vfork              (__NR_Linux + 113)
-#define __NR_wait4              (__NR_Linux + 114)
-#define __NR_swapoff            (__NR_Linux + 115)
-#define __NR_sysinfo            (__NR_Linux + 116)
-#define __NR_shutdown           (__NR_Linux + 117)
-#define __NR_fsync              (__NR_Linux + 118)
-#define __NR_madvise            (__NR_Linux + 119)
-#define __NR_clone              (__NR_Linux + 120)
-#define __NR_setdomainname      (__NR_Linux + 121)
-#define __NR_sendfile           (__NR_Linux + 122)
-#define __NR_recvfrom           (__NR_Linux + 123)
-#define __NR_adjtimex           (__NR_Linux + 124)
-#define __NR_mprotect           (__NR_Linux + 125)
-#define __NR_sigprocmask        (__NR_Linux + 126)
-#define __NR_create_module      (__NR_Linux + 127) /* not used */
-#define __NR_init_module        (__NR_Linux + 128)
-#define __NR_delete_module      (__NR_Linux + 129)
-#define __NR_get_kernel_syms    (__NR_Linux + 130) /* not used */
-#define __NR_quotactl           (__NR_Linux + 131)
-#define __NR_getpgid            (__NR_Linux + 132)
-#define __NR_fchdir             (__NR_Linux + 133)
-#define __NR_bdflush            (__NR_Linux + 134)
-#define __NR_sysfs              (__NR_Linux + 135)
-#define __NR_personality        (__NR_Linux + 136)
-#define __NR_afs_syscall        (__NR_Linux + 137) /* not used */
-#define __NR_setfsuid           (__NR_Linux + 138)
-#define __NR_setfsgid           (__NR_Linux + 139)
-#define __NR__llseek            (__NR_Linux + 140)
-#define __NR_getdents           (__NR_Linux + 141)
-#define __NR__newselect         (__NR_Linux + 142)
-#define __NR_flock              (__NR_Linux + 143)
-#define __NR_msync              (__NR_Linux + 144)
-#define __NR_readv              (__NR_Linux + 145)
-#define __NR_writev             (__NR_Linux + 146)
-#define __NR_getsid             (__NR_Linux + 147)
-#define __NR_fdatasync          (__NR_Linux + 148)
-#define __NR__sysctl            (__NR_Linux + 149)
-#define __NR_mlock              (__NR_Linux + 150)
-#define __NR_munlock            (__NR_Linux + 151)
-#define __NR_mlockall           (__NR_Linux + 152)
-#define __NR_munlockall         (__NR_Linux + 153)
-#define __NR_sched_setparam             (__NR_Linux + 154)
-#define __NR_sched_getparam             (__NR_Linux + 155)
-#define __NR_sched_setscheduler         (__NR_Linux + 156)
-#define __NR_sched_getscheduler         (__NR_Linux + 157)
-#define __NR_sched_yield                (__NR_Linux + 158)
-#define __NR_sched_get_priority_max     (__NR_Linux + 159)
-#define __NR_sched_get_priority_min     (__NR_Linux + 160)
-#define __NR_sched_rr_get_interval      (__NR_Linux + 161)
-#define __NR_nanosleep          (__NR_Linux + 162)
-#define __NR_mremap             (__NR_Linux + 163)
-#define __NR_setresuid          (__NR_Linux + 164)
-#define __NR_getresuid          (__NR_Linux + 165)
-#define __NR_sigaltstack        (__NR_Linux + 166)
-#define __NR_query_module       (__NR_Linux + 167) /* not used */
-#define __NR_poll               (__NR_Linux + 168)
-#define __NR_nfsservctl         (__NR_Linux + 169) /* not used */
-#define __NR_setresgid          (__NR_Linux + 170)
-#define __NR_getresgid          (__NR_Linux + 171)
-#define __NR_prctl              (__NR_Linux + 172)
-#define __NR_rt_sigreturn       (__NR_Linux + 173)
-#define __NR_rt_sigaction       (__NR_Linux + 174)
-#define __NR_rt_sigprocmask     (__NR_Linux + 175)
-#define __NR_rt_sigpending      (__NR_Linux + 176)
-#define __NR_rt_sigtimedwait    (__NR_Linux + 177)
-#define __NR_rt_sigqueueinfo    (__NR_Linux + 178)
-#define __NR_rt_sigsuspend      (__NR_Linux + 179)
-#define __NR_chown              (__NR_Linux + 180)
-#define __NR_setsockopt         (__NR_Linux + 181)
-#define __NR_getsockopt         (__NR_Linux + 182)
-#define __NR_sendmsg            (__NR_Linux + 183)
-#define __NR_recvmsg            (__NR_Linux + 184)
-#define __NR_semop              (__NR_Linux + 185)
-#define __NR_semget             (__NR_Linux + 186)
-#define __NR_semctl             (__NR_Linux + 187)
-#define __NR_msgsnd             (__NR_Linux + 188)
-#define __NR_msgrcv             (__NR_Linux + 189)
-#define __NR_msgget             (__NR_Linux + 190)
-#define __NR_msgctl             (__NR_Linux + 191)
-#define __NR_shmat              (__NR_Linux + 192)
-#define __NR_shmdt              (__NR_Linux + 193)
-#define __NR_shmget             (__NR_Linux + 194)
-#define __NR_shmctl             (__NR_Linux + 195)
-#define __NR_getpmsg            (__NR_Linux + 196) /* not used */
-#define __NR_putpmsg            (__NR_Linux + 197) /* not used */
-#define __NR_lstat64            (__NR_Linux + 198)
-#define __NR_truncate64         (__NR_Linux + 199)
-#define __NR_ftruncate64        (__NR_Linux + 200)
-#define __NR_getdents64         (__NR_Linux + 201)
-#define __NR_fcntl64            (__NR_Linux + 202)
-#define __NR_attrctl            (__NR_Linux + 203) /* not used */
-#define __NR_acl_get            (__NR_Linux + 204) /* not used */
-#define __NR_acl_set            (__NR_Linux + 205) /* not used */
-#define __NR_gettid             (__NR_Linux + 206)
-#define __NR_readahead          (__NR_Linux + 207)
-#define __NR_tkill              (__NR_Linux + 208)
-#define __NR_sendfile64         (__NR_Linux + 209)
-#define __NR_futex              (__NR_Linux + 210)
-#define __NR_sched_setaffinity  (__NR_Linux + 211)
-#define __NR_sched_getaffinity  (__NR_Linux + 212)
-#define __NR_set_thread_area    (__NR_Linux + 213) /* not used */
-#define __NR_get_thread_area    (__NR_Linux + 214) /* not used */
-#define __NR_io_setup           (__NR_Linux + 215)
-#define __NR_io_destroy         (__NR_Linux + 216)
-#define __NR_io_getevents       (__NR_Linux + 217)
-#define __NR_io_submit          (__NR_Linux + 218)
-#define __NR_io_cancel          (__NR_Linux + 219)
-#define __NR_alloc_hugepages    (__NR_Linux + 220) /* not used */
-#define __NR_free_hugepages     (__NR_Linux + 221) /* not used */
-#define __NR_exit_group         (__NR_Linux + 222)
-#define __NR_lookup_dcookie     (__NR_Linux + 223)
-#define __NR_epoll_create       (__NR_Linux + 224)
-#define __NR_epoll_ctl          (__NR_Linux + 225)
-#define __NR_epoll_wait         (__NR_Linux + 226)
-#define __NR_remap_file_pages   (__NR_Linux + 227)
-#define __NR_semtimedop         (__NR_Linux + 228)
-#define __NR_mq_open            (__NR_Linux + 229)
-#define __NR_mq_unlink          (__NR_Linux + 230)
-#define __NR_mq_timedsend       (__NR_Linux + 231)
-#define __NR_mq_timedreceive    (__NR_Linux + 232)
-#define __NR_mq_notify          (__NR_Linux + 233)
-#define __NR_mq_getsetattr      (__NR_Linux + 234)
-#define __NR_waitid		(__NR_Linux + 235)
-#define __NR_fadvise64_64	(__NR_Linux + 236)
-#define __NR_set_tid_address	(__NR_Linux + 237)
-#define __NR_setxattr		(__NR_Linux + 238)
-#define __NR_lsetxattr		(__NR_Linux + 239)
-#define __NR_fsetxattr		(__NR_Linux + 240)
-#define __NR_getxattr		(__NR_Linux + 241)
-#define __NR_lgetxattr		(__NR_Linux + 242)
-#define __NR_fgetxattr		(__NR_Linux + 243)
-#define __NR_listxattr		(__NR_Linux + 244)
-#define __NR_llistxattr		(__NR_Linux + 245)
-#define __NR_flistxattr		(__NR_Linux + 246)
-#define __NR_removexattr	(__NR_Linux + 247)
-#define __NR_lremovexattr	(__NR_Linux + 248)
-#define __NR_fremovexattr	(__NR_Linux + 249)
-#define __NR_timer_create	(__NR_Linux + 250)
-#define __NR_timer_settime	(__NR_Linux + 251)
-#define __NR_timer_gettime	(__NR_Linux + 252)
-#define __NR_timer_getoverrun	(__NR_Linux + 253)
-#define __NR_timer_delete	(__NR_Linux + 254)
-#define __NR_clock_settime	(__NR_Linux + 255)
-#define __NR_clock_gettime	(__NR_Linux + 256)
-#define __NR_clock_getres	(__NR_Linux + 257)
-#define __NR_clock_nanosleep	(__NR_Linux + 258)
-#define __NR_tgkill		(__NR_Linux + 259)
-#define __NR_mbind		(__NR_Linux + 260)
-#define __NR_get_mempolicy	(__NR_Linux + 261)
-#define __NR_set_mempolicy	(__NR_Linux + 262)
-#define __NR_vserver		(__NR_Linux + 263) /* not used */
-#define __NR_add_key		(__NR_Linux + 264)
-#define __NR_request_key	(__NR_Linux + 265)
-#define __NR_keyctl		(__NR_Linux + 266)
-#define __NR_ioprio_set		(__NR_Linux + 267)
-#define __NR_ioprio_get		(__NR_Linux + 268)
-#define __NR_inotify_init	(__NR_Linux + 269)
-#define __NR_inotify_add_watch	(__NR_Linux + 270)
-#define __NR_inotify_rm_watch	(__NR_Linux + 271)
-#define __NR_migrate_pages	(__NR_Linux + 272)
-#define __NR_pselect6		(__NR_Linux + 273)
-#define __NR_ppoll		(__NR_Linux + 274)
-#define __NR_openat		(__NR_Linux + 275)
-#define __NR_mkdirat		(__NR_Linux + 276)
-#define __NR_mknodat		(__NR_Linux + 277)
-#define __NR_fchownat		(__NR_Linux + 278)
-#define __NR_futimesat		(__NR_Linux + 279)
-#define __NR_fstatat64		(__NR_Linux + 280)
-#define __NR_unlinkat		(__NR_Linux + 281)
-#define __NR_renameat		(__NR_Linux + 282)
-#define __NR_linkat		(__NR_Linux + 283)
-#define __NR_symlinkat		(__NR_Linux + 284)
-#define __NR_readlinkat		(__NR_Linux + 285)
-#define __NR_fchmodat		(__NR_Linux + 286)
-#define __NR_faccessat		(__NR_Linux + 287)
-#define __NR_unshare		(__NR_Linux + 288)
-#define __NR_set_robust_list	(__NR_Linux + 289)
-#define __NR_get_robust_list	(__NR_Linux + 290)
-#define __NR_splice		(__NR_Linux + 291)
-#define __NR_sync_file_range	(__NR_Linux + 292)
-#define __NR_tee		(__NR_Linux + 293)
-#define __NR_vmsplice		(__NR_Linux + 294)
-#define __NR_move_pages		(__NR_Linux + 295)
-#define __NR_getcpu		(__NR_Linux + 296)
-#define __NR_epoll_pwait	(__NR_Linux + 297)
-#define __NR_statfs64		(__NR_Linux + 298)
-#define __NR_fstatfs64		(__NR_Linux + 299)
-#define __NR_kexec_load		(__NR_Linux + 300)
-#define __NR_utimensat		(__NR_Linux + 301)
-#define __NR_signalfd		(__NR_Linux + 302)
-#define __NR_timerfd		(__NR_Linux + 303) /* not used */
-#define __NR_eventfd		(__NR_Linux + 304)
-#define __NR_fallocate		(__NR_Linux + 305)
-#define __NR_timerfd_create	(__NR_Linux + 306)
-#define __NR_timerfd_settime	(__NR_Linux + 307)
-#define __NR_timerfd_gettime	(__NR_Linux + 308)
-#define __NR_signalfd4		(__NR_Linux + 309)
-#define __NR_eventfd2		(__NR_Linux + 310)
-#define __NR_epoll_create1	(__NR_Linux + 311)
-#define __NR_dup3		(__NR_Linux + 312)
-#define __NR_pipe2		(__NR_Linux + 313)
-#define __NR_inotify_init1	(__NR_Linux + 314)
-#define __NR_preadv		(__NR_Linux + 315)
-#define __NR_pwritev		(__NR_Linux + 316)
-#define __NR_rt_tgsigqueueinfo	(__NR_Linux + 317)
-#define __NR_perf_event_open	(__NR_Linux + 318)
-#define __NR_recvmmsg		(__NR_Linux + 319)
-#define __NR_accept4		(__NR_Linux + 320)
-#define __NR_prlimit64		(__NR_Linux + 321)
-#define __NR_fanotify_init	(__NR_Linux + 322)
-#define __NR_fanotify_mark	(__NR_Linux + 323)
-#define __NR_clock_adjtime	(__NR_Linux + 324)
-#define __NR_name_to_handle_at	(__NR_Linux + 325)
-#define __NR_open_by_handle_at	(__NR_Linux + 326)
-#define __NR_syncfs		(__NR_Linux + 327)
-#define __NR_setns		(__NR_Linux + 328)
-#define __NR_sendmmsg		(__NR_Linux + 329)
-#define __NR_process_vm_readv	(__NR_Linux + 330)
-#define __NR_process_vm_writev	(__NR_Linux + 331)
-#define __NR_kcmp		(__NR_Linux + 332)
-#define __NR_finit_module	(__NR_Linux + 333)
-#define __NR_sched_setattr	(__NR_Linux + 334)
-#define __NR_sched_getattr	(__NR_Linux + 335)
-#define __NR_utimes		(__NR_Linux + 336)
-#define __NR_renameat2		(__NR_Linux + 337)
-#define __NR_seccomp		(__NR_Linux + 338)
-#define __NR_getrandom		(__NR_Linux + 339)
-#define __NR_memfd_create	(__NR_Linux + 340)
-#define __NR_bpf		(__NR_Linux + 341)
-#define __NR_execveat		(__NR_Linux + 342)
-#define __NR_membarrier		(__NR_Linux + 343)
-#define __NR_userfaultfd	(__NR_Linux + 344)
-#define __NR_mlock2		(__NR_Linux + 345)
-#define __NR_copy_file_range	(__NR_Linux + 346)
-#define __NR_preadv2		(__NR_Linux + 347)
-#define __NR_pwritev2		(__NR_Linux + 348)
-#define __NR_statx		(__NR_Linux + 349)
-#define __NR_io_pgetevents	(__NR_Linux + 350)
-
-#ifdef __KERNEL__
-#define __NR_syscalls           351
+#define __NR_Linux           0
+#ifdef __LP64__
+#include <asm/unistd_64.h>
+#else
+#include <asm/unistd_32.h>
 #endif
 
-#define LINUX_GATEWAY_ADDR      0x100
+#define LINUX_GATEWAY_ADDR   0x100
 
 #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f453997..f899d43 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -923,17 +923,21 @@ ENTRY(lws_table)
 END(lws_table)
 	/* End of lws table */
 
+#define __SYSCALL(nr, entry, nargs) ASM_ULONG_INSN entry
 	.align 8
 ENTRY(sys_call_table)
 	.export sys_call_table,data
-#include "syscall_table.S"
+#ifdef CONFIG_64BIT
+#include <asm/syscall_table_c32.h>   /* Compat syscalls */
+#else
+#include <asm/syscall_table_32.h>    /* 32-bit native syscalls */
+#endif
 END(sys_call_table)
 
 #ifdef CONFIG_64BIT
 	.align 8
 ENTRY(sys_call_table64)
-#define SYSCALL_TABLE_64BIT
-#include "syscall_table.S"
+#include <asm/syscall_table_64.h>    /* 64-bit native syscalls */
 END(sys_call_table64)
 #endif
 
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
deleted file mode 100644
index fe3f2a4..0000000
--- a/arch/parisc/kernel/syscall_table.S
+++ /dev/null
@@ -1,459 +0,0 @@
-/*    System Call Table
- *
- *    Copyright (C) 1999-2004 Matthew Wilcox <willy at parisc-linux.org>
- *    Copyright (C) 2000-2001 John Marvin <jsm at parisc-linux.org>
- *    Copyright (C) 2000 Alan Modra <amodra at parisc-linux.org>
- *    Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
- *    Copyright (C) 2000 Philipp Rumpf <prumpf with tux.org>
- *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
- *    Copyright (C) 2000 David Huggins-Daines <dhd with pobox.org>
- *    Copyright (C) 2000 Grant Grundler <grundler at parisc-linux.org>
- *    Copyright (C) 2001 Richard Hirst <rhirst with parisc-linux.org>
- *    Copyright (C) 2001-2002 Ryan Bradetich <rbrad at parisc-linux.org>
- *    Copyright (C) 2001-2007 Helge Deller <deller at parisc-linux.org>
- *    Copyright (C) 2000-2001 Thomas Bogendoerfer <tsbogend at parisc-linux.org>
- *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
- *    Copyright (C) 2005-2006 Kyle McMartin <kyle at parisc-linux.org>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#if defined(CONFIG_64BIT) && !defined(SYSCALL_TABLE_64BIT)
-/* Use ENTRY_SAME for 32-bit syscalls which are the same on wide and
- * narrow palinux.  Use ENTRY_DIFF for those where a 32-bit specific
- * implementation is required on wide palinux.  Use ENTRY_COMP where
- * the compatibility layer has a useful 32-bit implementation.
- */
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys32_##_name_
-#define ENTRY_UHOH(_name_) .dword sys32_##unimplemented
-#define ENTRY_OURS(_name_) .dword parisc_##_name_
-#define ENTRY_COMP(_name_) .dword compat_sys_##_name_
-#elif defined(CONFIG_64BIT) && defined(SYSCALL_TABLE_64BIT)
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys_##_name_
-#define ENTRY_UHOH(_name_) .dword sys_##_name_
-#define ENTRY_OURS(_name_) .dword sys_##_name_
-#define ENTRY_COMP(_name_) .dword sys_##_name_
-#else
-#define ENTRY_SAME(_name_) .word sys_##_name_
-#define ENTRY_DIFF(_name_) .word sys_##_name_
-#define ENTRY_UHOH(_name_) .word sys_##_name_
-#define ENTRY_OURS(_name_) .word parisc_##_name_
-#define ENTRY_COMP(_name_) .word sys_##_name_
-#endif
-
-90:	ENTRY_SAME(restart_syscall)	/* 0 */
-91:	ENTRY_SAME(exit)
-	ENTRY_SAME(fork_wrapper)
-	ENTRY_SAME(read)
-	ENTRY_SAME(write)
-	ENTRY_COMP(open)		/* 5 */
-	ENTRY_SAME(close)
-	ENTRY_SAME(waitpid)
-	ENTRY_SAME(creat)
-	ENTRY_SAME(link)
-	ENTRY_SAME(unlink)		/* 10 */
-	ENTRY_COMP(execve)
-	ENTRY_SAME(chdir)
-	/* See comments in kernel/time.c!!! Maybe we don't need this? */
-	ENTRY_COMP(time)
-	ENTRY_SAME(mknod)
-	ENTRY_SAME(chmod)		/* 15 */
-	ENTRY_SAME(lchown)
-	ENTRY_SAME(socket)
-	/* struct stat is MAYBE identical wide and narrow ?? */
-	ENTRY_COMP(newstat)
-	ENTRY_COMP(lseek)
-	ENTRY_SAME(getpid)		/* 20 */
-	/* the 'void * data' parameter may need re-packing in wide */
-	ENTRY_COMP(mount)
-	/* concerned about struct sockaddr in wide/narrow */
-	/* ---> I think sockaddr is OK unless the compiler packs the struct */
-	/*      differently to align the char array */
-	ENTRY_SAME(bind)
-	ENTRY_SAME(setuid)
-	ENTRY_SAME(getuid)
-	ENTRY_COMP(stime)		/* 25 */
-	ENTRY_COMP(ptrace)
-	ENTRY_SAME(alarm)
-	/* see stat comment */
-	ENTRY_COMP(newfstat)
-	ENTRY_SAME(pause)
-	/* struct utimbuf uses time_t which might vary */
-	ENTRY_COMP(utime)		/* 30 */
-	/* struct sockaddr... */
-	ENTRY_SAME(connect)
-	ENTRY_SAME(listen)
-	ENTRY_SAME(access)
-	ENTRY_SAME(nice)
-	/* struct sockaddr... */
-	ENTRY_SAME(accept)		/* 35 */
-	ENTRY_SAME(sync)
-	ENTRY_SAME(kill)
-	ENTRY_SAME(rename)
-	ENTRY_SAME(mkdir)
-	ENTRY_SAME(rmdir)		/* 40 */
-	ENTRY_SAME(dup)
-	ENTRY_SAME(pipe)
-	ENTRY_COMP(times)
-	/* struct sockaddr... */
-	ENTRY_SAME(getsockname)
-	/* it seems possible brk() could return a >4G pointer... */
-	ENTRY_SAME(brk)			/* 45 */
-	ENTRY_SAME(setgid)
-	ENTRY_SAME(getgid)
-	ENTRY_SAME(signal)
-	ENTRY_SAME(geteuid)
-	ENTRY_SAME(getegid)		/* 50 */
-	ENTRY_SAME(acct)
-	ENTRY_SAME(umount)
-	/* struct sockaddr... */
-	ENTRY_SAME(getpeername)
-	ENTRY_COMP(ioctl)
-	ENTRY_COMP(fcntl)		/* 55 */
-	ENTRY_SAME(socketpair)
-	ENTRY_SAME(setpgid)
-	ENTRY_SAME(send)
-	ENTRY_SAME(newuname)
-	ENTRY_SAME(umask)		/* 60 */
-	ENTRY_SAME(chroot)
-	ENTRY_COMP(ustat)
-	ENTRY_SAME(dup2)
-	ENTRY_SAME(getppid)
-	ENTRY_SAME(getpgrp)		/* 65 */
-	ENTRY_SAME(setsid)
-	ENTRY_SAME(pivot_root)
-	/* I don't like this */
-	ENTRY_UHOH(sgetmask)
-	ENTRY_UHOH(ssetmask)
-	ENTRY_SAME(setreuid)		/* 70 */
-	ENTRY_SAME(setregid)
-	ENTRY_SAME(mincore)
-	ENTRY_COMP(sigpending)
-	ENTRY_SAME(sethostname)
-	/* Following 3 have linux-common-code structs containing longs -( */
-	ENTRY_COMP(setrlimit)		/* 75 */
-	ENTRY_COMP(getrlimit)
-	ENTRY_COMP(getrusage)
-	/* struct timeval and timezone are maybe?? consistent wide and narrow */
-	ENTRY_COMP(gettimeofday)
-	ENTRY_COMP(settimeofday)
-	ENTRY_SAME(getgroups)		/* 80 */
-	ENTRY_SAME(setgroups)
-	/* struct socketaddr... */
-	ENTRY_SAME(sendto)
-	ENTRY_SAME(symlink)
-	/* see stat comment */
-	ENTRY_COMP(newlstat)
-	ENTRY_SAME(readlink)		/* 85 */
-	ENTRY_SAME(ni_syscall)	/* was uselib */
-	ENTRY_SAME(swapon)
-	ENTRY_SAME(reboot)
-	ENTRY_SAME(mmap2)
-	ENTRY_SAME(mmap)		/* 90 */
-	ENTRY_SAME(munmap)
-	ENTRY_COMP(truncate)
-	ENTRY_COMP(ftruncate)
-	ENTRY_SAME(fchmod)
-	ENTRY_SAME(fchown)		/* 95 */
-	ENTRY_SAME(getpriority)
-	ENTRY_SAME(setpriority)
-	ENTRY_SAME(recv)
-	ENTRY_COMP(statfs)
-	ENTRY_COMP(fstatfs)		/* 100 */
-	ENTRY_SAME(stat64)
-	ENTRY_SAME(ni_syscall)	/* was socketcall */
-	ENTRY_SAME(syslog)
-	/* even though manpage says struct timeval contains longs, ours has
-	 * time_t and suseconds_t -- both of which are safe wide/narrow */
-	ENTRY_COMP(setitimer)
-	ENTRY_COMP(getitimer)		/* 105 */
-	ENTRY_SAME(capget)
-	ENTRY_SAME(capset)
-	ENTRY_OURS(pread64)
-	ENTRY_OURS(pwrite64)
-	ENTRY_SAME(getcwd)		/* 110 */
-	ENTRY_SAME(vhangup)
-	ENTRY_SAME(fstat64)
-	ENTRY_SAME(vfork_wrapper)
-	/* struct rusage contains longs... */
-	ENTRY_COMP(wait4)
-	ENTRY_SAME(swapoff)		/* 115 */
-	ENTRY_COMP(sysinfo)
-	ENTRY_SAME(shutdown)
-	ENTRY_SAME(fsync)
-	ENTRY_SAME(madvise)
-	ENTRY_SAME(clone_wrapper)	/* 120 */
-	ENTRY_SAME(setdomainname)
-	ENTRY_COMP(sendfile)
-	/* struct sockaddr... */
-	ENTRY_SAME(recvfrom)
-	/* struct timex contains longs */
-	ENTRY_COMP(adjtimex)
-	ENTRY_SAME(mprotect)		/* 125 */
-	/* old_sigset_t forced to 32 bits.  Beware glibc sigset_t */
-	ENTRY_COMP(sigprocmask)
-	ENTRY_SAME(ni_syscall)	/* create_module */
-	ENTRY_SAME(init_module)
-	ENTRY_SAME(delete_module)
-	ENTRY_SAME(ni_syscall)		/* 130: get_kernel_syms */
-	/* time_t inside struct dqblk */
-	ENTRY_SAME(quotactl)
-	ENTRY_SAME(getpgid)
-	ENTRY_SAME(fchdir)
-	ENTRY_SAME(bdflush)
-	ENTRY_SAME(sysfs)		/* 135 */
-	ENTRY_OURS(personality)
-	ENTRY_SAME(ni_syscall)	/* for afs_syscall */
-	ENTRY_SAME(setfsuid)
-	ENTRY_SAME(setfsgid)
-	/* I think this might work */
-	ENTRY_SAME(llseek)		/* 140 */
-	ENTRY_COMP(getdents)
-	/* it is POSSIBLE that select will be OK because even though fd_set
-	 * contains longs, the macros and sizes are clever. */
-	ENTRY_COMP(select)
-	ENTRY_SAME(flock)
-	ENTRY_SAME(msync)
-	/* struct iovec contains pointers */
-	ENTRY_COMP(readv)		/* 145 */
-	ENTRY_COMP(writev)
-	ENTRY_SAME(getsid)
-	ENTRY_SAME(fdatasync)
-	/* struct __sysctl_args is a mess */
-	ENTRY_COMP(sysctl)
-	ENTRY_SAME(mlock)		/* 150 */
-	ENTRY_SAME(munlock)
-	ENTRY_SAME(mlockall)
-	ENTRY_SAME(munlockall)
-	/* struct sched_param is ok for now */
-	ENTRY_SAME(sched_setparam)
-	ENTRY_SAME(sched_getparam)	/* 155 */
-	ENTRY_SAME(sched_setscheduler)
-	ENTRY_SAME(sched_getscheduler)
-	ENTRY_SAME(sched_yield)
-	ENTRY_SAME(sched_get_priority_max)
-	ENTRY_SAME(sched_get_priority_min)	/* 160 */
-	ENTRY_COMP(sched_rr_get_interval)
-	ENTRY_COMP(nanosleep)
-	ENTRY_SAME(mremap)
-	ENTRY_SAME(setresuid)
-	ENTRY_SAME(getresuid)		/* 165 */
-	ENTRY_COMP(sigaltstack)
-	ENTRY_SAME(ni_syscall)		/* query_module */
-	ENTRY_SAME(poll)
-	/* structs contain pointers and an in_addr... */
-	ENTRY_SAME(ni_syscall)		/* was nfsservctl */
-	ENTRY_SAME(setresgid)		/* 170 */
-	ENTRY_SAME(getresgid)
-	ENTRY_SAME(prctl)
-	/* signals need a careful review */
-	ENTRY_SAME(rt_sigreturn_wrapper)
-	ENTRY_COMP(rt_sigaction)
-	ENTRY_COMP(rt_sigprocmask)	/* 175 */
-	ENTRY_COMP(rt_sigpending)
-	ENTRY_COMP(rt_sigtimedwait)
-	/* even though the struct siginfo_t is different, it appears like
-	 * all the paths use values which should be same wide and narrow.
-	 * Also the struct is padded to 128 bytes which means we don't have
-	 * to worry about faulting trying to copy in a larger 64-bit
-	 * struct from a 32-bit user-space app.
-	 */
-	ENTRY_COMP(rt_sigqueueinfo)
-	ENTRY_COMP(rt_sigsuspend)
-	ENTRY_SAME(chown)		/* 180 */
-	/* setsockopt() used by iptables: SO_SET_REPLACE/SO_SET_ADD_COUNTERS */
-	ENTRY_COMP(setsockopt)
-	ENTRY_COMP(getsockopt)
-	ENTRY_COMP(sendmsg)
-	ENTRY_COMP(recvmsg)
-	ENTRY_SAME(semop)		/* 185 */
-	ENTRY_SAME(semget)
-	ENTRY_COMP(semctl)
-	ENTRY_COMP(msgsnd)
-	ENTRY_COMP(msgrcv)
-	ENTRY_SAME(msgget)		/* 190 */
-	ENTRY_COMP(msgctl)
-	ENTRY_COMP(shmat)
-	ENTRY_SAME(shmdt)
-	ENTRY_SAME(shmget)
-	ENTRY_COMP(shmctl)		/* 195 */
-	ENTRY_SAME(ni_syscall)		/* streams1 */
-	ENTRY_SAME(ni_syscall)		/* streams2 */
-	ENTRY_SAME(lstat64)
-	ENTRY_OURS(truncate64)
-	ENTRY_OURS(ftruncate64)		/* 200 */
-	ENTRY_SAME(getdents64)
-	ENTRY_COMP(fcntl64)
-	ENTRY_SAME(ni_syscall)	/* attrctl -- dead */
-	ENTRY_SAME(ni_syscall)	/* acl_get -- dead */
-	ENTRY_SAME(ni_syscall)		/* 205 (acl_set -- dead) */
-	ENTRY_SAME(gettid)
-	ENTRY_OURS(readahead)
-	ENTRY_SAME(tkill)
-	ENTRY_COMP(sendfile64)
-	ENTRY_COMP(futex)		/* 210 */
-	ENTRY_COMP(sched_setaffinity)
-	ENTRY_COMP(sched_getaffinity)
-	ENTRY_SAME(ni_syscall)	/* set_thread_area */
-	ENTRY_SAME(ni_syscall)	/* get_thread_area */
-	ENTRY_COMP(io_setup)		/* 215 */
-	ENTRY_SAME(io_destroy)
-	ENTRY_COMP(io_getevents)
-	ENTRY_COMP(io_submit)
-	ENTRY_SAME(io_cancel)
-	ENTRY_SAME(ni_syscall)		/* 220: was alloc_hugepages */
-	ENTRY_SAME(ni_syscall)		/* was free_hugepages */
-	ENTRY_SAME(exit_group)
-	ENTRY_COMP(lookup_dcookie)
-	ENTRY_SAME(epoll_create)
-	ENTRY_SAME(epoll_ctl)		/* 225 */
-	ENTRY_SAME(epoll_wait)
- 	ENTRY_SAME(remap_file_pages)
-	ENTRY_COMP(semtimedop)
-	ENTRY_COMP(mq_open)
-	ENTRY_SAME(mq_unlink)		/* 230 */
-	ENTRY_COMP(mq_timedsend)
-	ENTRY_COMP(mq_timedreceive)
-	ENTRY_COMP(mq_notify)
-	ENTRY_COMP(mq_getsetattr)
-	ENTRY_COMP(waitid)		/* 235 */
-	ENTRY_OURS(fadvise64_64)
-	ENTRY_SAME(set_tid_address)
-	ENTRY_SAME(setxattr)
-	ENTRY_SAME(lsetxattr)
-	ENTRY_SAME(fsetxattr)		/* 240 */
-	ENTRY_SAME(getxattr)
-	ENTRY_SAME(lgetxattr)
-	ENTRY_SAME(fgetxattr)
-	ENTRY_SAME(listxattr)
-	ENTRY_SAME(llistxattr)		/* 245 */
-	ENTRY_SAME(flistxattr)
-	ENTRY_SAME(removexattr)
-	ENTRY_SAME(lremovexattr)
-	ENTRY_SAME(fremovexattr)
-	ENTRY_COMP(timer_create)	/* 250 */
-	ENTRY_COMP(timer_settime)
-	ENTRY_COMP(timer_gettime)
-	ENTRY_SAME(timer_getoverrun)
-	ENTRY_SAME(timer_delete)
-	ENTRY_COMP(clock_settime)	/* 255 */
-	ENTRY_COMP(clock_gettime)
-	ENTRY_COMP(clock_getres)
-	ENTRY_COMP(clock_nanosleep)
-	ENTRY_SAME(tgkill)
-	ENTRY_COMP(mbind)		/* 260 */
-	ENTRY_COMP(get_mempolicy)
-	ENTRY_COMP(set_mempolicy)
-	ENTRY_SAME(ni_syscall)	/* 263: reserved for vserver */
-	ENTRY_SAME(add_key)
-	ENTRY_SAME(request_key)		/* 265 */
-	ENTRY_COMP(keyctl)
-	ENTRY_SAME(ioprio_set)
-	ENTRY_SAME(ioprio_get)
-	ENTRY_SAME(inotify_init)
-	ENTRY_SAME(inotify_add_watch)	/* 270 */
-	ENTRY_SAME(inotify_rm_watch)
-	ENTRY_SAME(migrate_pages)
-	ENTRY_COMP(pselect6)
-	ENTRY_COMP(ppoll)
-	ENTRY_COMP(openat)		/* 275 */
-	ENTRY_SAME(mkdirat)
-	ENTRY_SAME(mknodat)
-	ENTRY_SAME(fchownat)
-	ENTRY_COMP(futimesat)
-	ENTRY_SAME(fstatat64)		/* 280 */
-	ENTRY_SAME(unlinkat)
-	ENTRY_SAME(renameat)
-	ENTRY_SAME(linkat)
-	ENTRY_SAME(symlinkat)
-	ENTRY_SAME(readlinkat)		/* 285 */
-	ENTRY_SAME(fchmodat)
-	ENTRY_SAME(faccessat)
-	ENTRY_SAME(unshare)
-	ENTRY_COMP(set_robust_list)
-	ENTRY_COMP(get_robust_list)	/* 290 */
-	ENTRY_SAME(splice)
-	ENTRY_OURS(sync_file_range)
-	ENTRY_SAME(tee)
-	ENTRY_COMP(vmsplice)
-	ENTRY_COMP(move_pages)		/* 295 */
-	ENTRY_SAME(getcpu)
-	ENTRY_COMP(epoll_pwait)
-	ENTRY_COMP(statfs64)
-	ENTRY_COMP(fstatfs64)
-	ENTRY_COMP(kexec_load)		/* 300 */
-	ENTRY_COMP(utimensat)
-	ENTRY_COMP(signalfd)
-	ENTRY_SAME(ni_syscall)		/* was timerfd */
-	ENTRY_SAME(eventfd)
-	ENTRY_OURS(fallocate)		/* 305 */
-	ENTRY_SAME(timerfd_create)
-	ENTRY_COMP(timerfd_settime)
-	ENTRY_COMP(timerfd_gettime)
-	ENTRY_COMP(signalfd4)
-	ENTRY_SAME(eventfd2)		/* 310 */
-	ENTRY_SAME(epoll_create1)
-	ENTRY_SAME(dup3)
-	ENTRY_SAME(pipe2)
-	ENTRY_SAME(inotify_init1)
-	ENTRY_COMP(preadv)		/* 315 */
-	ENTRY_COMP(pwritev)
-	ENTRY_COMP(rt_tgsigqueueinfo)
-	ENTRY_SAME(perf_event_open)
-	ENTRY_COMP(recvmmsg)
-	ENTRY_SAME(accept4)		/* 320 */
-	ENTRY_SAME(prlimit64)
-	ENTRY_SAME(fanotify_init)
-	ENTRY_DIFF(fanotify_mark)
-	ENTRY_COMP(clock_adjtime)
-	ENTRY_SAME(name_to_handle_at)	/* 325 */
-	ENTRY_COMP(open_by_handle_at)
-	ENTRY_SAME(syncfs)
-	ENTRY_SAME(setns)
-	ENTRY_COMP(sendmmsg)
-	ENTRY_COMP(process_vm_readv)	/* 330 */
-	ENTRY_COMP(process_vm_writev)
-	ENTRY_SAME(kcmp)
-	ENTRY_SAME(finit_module)
-	ENTRY_SAME(sched_setattr)
-	ENTRY_SAME(sched_getattr)	/* 335 */
-	ENTRY_COMP(utimes)
-	ENTRY_SAME(renameat2)
-	ENTRY_SAME(seccomp)
-	ENTRY_SAME(getrandom)
-	ENTRY_SAME(memfd_create)	/* 340 */
-	ENTRY_SAME(bpf)
-	ENTRY_COMP(execveat)
-	ENTRY_SAME(membarrier)
-	ENTRY_SAME(userfaultfd)
-	ENTRY_SAME(mlock2)		/* 345 */
-	ENTRY_SAME(copy_file_range)
-	ENTRY_COMP(preadv2)
-	ENTRY_COMP(pwritev2)
-	ENTRY_SAME(statx)
-	ENTRY_COMP(io_pgetevents)	/* 350 */
-
-
-.ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
-.error "size of syscall table does not fit value of __NR_Linux_syscalls"
-.endif
-
-#undef ENTRY_SAME
-#undef ENTRY_DIFF
-#undef ENTRY_UHOH
-#undef ENTRY_COMP
-#undef ENTRY_OURS
-- 
1.9.1



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Subject: [PATCH v5 5/5] parisc: syscalls: ignore nfsservctl for other architectures
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Xref: news.gmane.org gmane.linux.kernel:2900273 gmane.linux.ports.parisc:29200 gmane.linux.kernel.year-2038:3535 gmane.linux.kernel.cross-arch:47867
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This adds an exception to the syscall table checking script.

nfsservctl entry is only provided on x86, and there is no
reason to add it elsewhere. However, including it on the
syscall table caused a warning for most configurations on
non-x86.

<stdin>:696:2: warning: #warning syscall nfsservctl not implemented [-Wcpp]

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 scripts/checksyscalls.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
index ee3dfb5..cf93100 100755
--- a/scripts/checksyscalls.sh
+++ b/scripts/checksyscalls.sh
@@ -150,6 +150,7 @@ cat << EOF
 #define __IGNORE_uselib
 #define __IGNORE__sysctl
 #define __IGNORE_arch_prctl
+#define __IGNORE_nfsservctl
 
 /* ... including the "new" 32-bit uid syscalls */
 #define __IGNORE_lchown32
-- 
1.9.1



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Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
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On 10/16/18 12:33 AM, Joel Fernandes wrote:
> On Mon, Oct 15, 2018 at 02:42:09AM -0700, Christoph Hellwig wrote:
>> On Fri, Oct 12, 2018 at 06:31:58PM -0700, Joel Fernandes (Google) wrote:
>>> Android needs to mremap large regions of memory during memory management
>>> related operations.
>>
>> Just curious: why?
> 
> In Android we have a requirement of moving a large (up to a GB now, but may
> grow bigger in future) memory range from one location to another.

I think Christoph's "why?" was about the requirement, not why it hurts
applications. I admit I'm now also curious :)

> This move
> operation has to happen when the application threads are paused for this
> operation. Therefore, an inefficient move like it is now (for example 250ms
> on arm64) will cause response time issues for applications, which is not
> acceptable. Huge pages cannot be used in such memory ranges to avoid this
> inefficiency as (when the application threads are running) our fault handlers
> are designed to process 4KB pages at a time, to keep response times low. So
> using huge pages in this context can, again, cause response time issues.
> 
> Also, the mremap syscall waiting for quarter of a second for a large mremap
> is quite weird and we ought to improve it where possible.

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Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
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On Tue, Oct 16, 2018 at 01:29:52PM +0200, Vlastimil Babka wrote:
> On 10/16/18 12:33 AM, Joel Fernandes wrote:
> > On Mon, Oct 15, 2018 at 02:42:09AM -0700, Christoph Hellwig wrote:
> >> On Fri, Oct 12, 2018 at 06:31:58PM -0700, Joel Fernandes (Google) wrote:
> >>> Android needs to mremap large regions of memory during memory management
> >>> related operations.
> >>
> >> Just curious: why?
> > 
> > In Android we have a requirement of moving a large (up to a GB now, but may
> > grow bigger in future) memory range from one location to another.
> 
> I think Christoph's "why?" was about the requirement, not why it hurts
> applications. I admit I'm now also curious :)

This issue was discovered when we wanted to be able to move the physical
pages of a memory range to another location quickly so that, after the
application threads are resumed, UFFDIO_REGISTER_MODE_MISSING userfaultfd
faults can be received on the original memory range. The actual operations
performed on the memory range are beyond the scope of this discussion. The
user threads continue to refer to the old address which will now fault. The
reason we want retain the old memory range and receives faults there is to
avoid the need to fix the addresses all over the address space of the threads
after we finish with performing operations on them in the fault handlers, so
we mremap it and receive faults at the old addresses.

Does that answer your question?

thanks,

- Joel

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Hi all,

Commits

  17714e83ebff ("parisc: Release spinlocks using ordered store")
  c389eafd8ac2 ("parisc: Reorder TLB flush timing calculation")

are missing a Signed-off-by from their committer.

--=20
Cheers,
Stephen Rothwell

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On 17.10.2018 08:15, Stephen Rothwell wrote:
> Commits
>   17714e83ebff ("parisc: Release spinlocks using ordered store")
>   c389eafd8ac2 ("parisc: Reorder TLB flush timing calculation")
> are missing a Signed-off-by from their committer.

Fixed.
Thanks,
Helge


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Hi Greg,

would you please include the trivial patch below for 4.19?
My older cross-compiler didn't complained, so it went unnoticed for me until
now and the faulty code was added during the 4.19 merge window.

It can be pulled from my git tree as well:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.19-3

Fix an unitialized variable usage in the parisc unwind code.

Thanks,
Helge

----------------------------------------------------------------
Helge Deller (1):
      parisc: Fix uninitialized variable usage in unwind.c

 arch/parisc/kernel/unwind.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


----------------------------------------------------------------

From: Helge Deller <deller@gmx.de>
Date: Tue, 16 Oct 2018 08:21:48 +0200
Subject: parisc: Fix uninitialized variable usage in unwind.c

As noticed by Dave Anglin, the last commit introduced a small bug where
the potentially uninitialized r struct is used instead of the regs
pointer as input for unwind_frame_init(). Fix it.

Signed-off-by: Helge Deller <deller@gmx.de>
Reported-by: John David Anglin <dave.anglin@bell.net>

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index f329b466e68f..2d14f17838d2 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -426,7 +426,7 @@ void unwind_frame_init_task(struct unwind_frame_info *info,
 			r.gr[30] = get_parisc_stackpointer();
 			regs = &r;
 		}
-		unwind_frame_init(info, task, &r);
+		unwind_frame_init(info, task, regs);
 	} else {
 		unwind_frame_init_from_blocked_task(info, task);
 	}


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Subject: Re: [PATCH] extract-vmlinux: Check for uncompressed image as fallback
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Hi Helge,



On Tue, Oct 16, 2018 at 3:06 PM Helge Deller <deller@gmx.de> wrote:
>
> As on x86-64 and other architectures, the boot kernel on parisc (vmlinuz
> and bzImage) contains a full compressed copy of the final kernel
> executable (vmlinux.bin.gz), which one should be able to extract with
> the extract-vmlinux script.
>
> But on parisc extracting the kernel with extract-vmlinux fails.
> Currently the script first checks if the given file is an ELF file
> (which is true on parisc) and if so returns it.  Thus on parisc we
> unexpectedly get back the vmlinuz boot file instead of the uncompressed
> vmlinux image.
>
> This patch fixes this issue by reverting the logic. It now first tries
> to find a compression signature in the given file and if that fails it
> checks the file itself as fallback.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/scripts/extract-vmlinux b/scripts/extract-vmlinux
> index e6239f39abad..85e1f32fb4a0 100755
> --- a/scripts/extract-vmlinux
> +++ b/scripts/extract-vmlinux
> @@ -48,9 +48,6 @@ fi
>  tmp=$(mktemp /tmp/vmlinux-XXX)
>  trap "rm -f $tmp" 0
>
> -# Initial attempt for uncompressed images or objects:
> -check_vmlinux $img
> -

This patch looks good in general,
but, I just wondered why this line is needed.

If I understand this correctly,
when vmlinux itself is passed to this script,
it is returned as-is.
But, we already have what we want in this case.

We can simply drop this code if there is no good reason.

CC'ed the submitter of this script, Corentin Chary
in case he knows something.


>  # That didn't work, so retry after decompression.
>  try_decompress '\037\213\010' xy    gunzip
>  try_decompress '\3757zXZ\000' abcde unxz
> @@ -60,5 +57,8 @@ try_decompress '\211\114\132' xy    'lzop -d'
>  try_decompress '\002!L\030'   xxx   'lz4 -d'
>  try_decompress '(\265/\375'   xxx   unzstd
>
> +# Finally check for uncompressed images or objects:
> +check_vmlinux $img
> +
>  # Bail out:
>  echo "$me: Cannot find vmlinux." >&2




--
Best Regards
Masahiro Yamada


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On 10/16/18 9:43 PM, Joel Fernandes wrote:
> On Tue, Oct 16, 2018 at 01:29:52PM +0200, Vlastimil Babka wrote:
>> On 10/16/18 12:33 AM, Joel Fernandes wrote:
>>> On Mon, Oct 15, 2018 at 02:42:09AM -0700, Christoph Hellwig wrote:
>>>> On Fri, Oct 12, 2018 at 06:31:58PM -0700, Joel Fernandes (Google) wrote:
>>>>> Android needs to mremap large regions of memory during memory management
>>>>> related operations.
>>>>
>>>> Just curious: why?
>>>
>>> In Android we have a requirement of moving a large (up to a GB now, but may
>>> grow bigger in future) memory range from one location to another.
>>
>> I think Christoph's "why?" was about the requirement, not why it hurts
>> applications. I admit I'm now also curious :)
> 
> This issue was discovered when we wanted to be able to move the physical
> pages of a memory range to another location quickly so that, after the
> application threads are resumed, UFFDIO_REGISTER_MODE_MISSING userfaultfd
> faults can be received on the original memory range. The actual operations
> performed on the memory range are beyond the scope of this discussion. The
> user threads continue to refer to the old address which will now fault. The
> reason we want retain the old memory range and receives faults there is to
> avoid the need to fix the addresses all over the address space of the threads
> after we finish with performing operations on them in the fault handlers, so
> we mremap it and receive faults at the old addresses.
> 
> Does that answer your question?

Yes, interesting, thanks!

Vlastimil

> thanks,
> 
> - Joel
> 

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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: Re: [GIT PULL] parisc fix for kernel v4.19
Date: Wed, 17 Oct 2018 14:01:48 +0200
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To: Helge Deller <deller@gmx.de>
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On Wed, Oct 17, 2018 at 08:45:24AM +0200, Helge Deller wrote:
> Hi Greg,
> 
> would you please include the trivial patch below for 4.19?
> My older cross-compiler didn't complained, so it went unnoticed for me until
> now and the faulty code was added during the 4.19 merge window.
> 
> It can be pulled from my git tree as well:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.19-3

Now merged, thanks.

greg k-h


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Subject: Re: [PATCH v5 1/5] parisc: move __IGNORE* entries to non uapi header
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To: Firoz Khan <firoz.khan@linaro.org>, linux-parisc@vger.kernel.org,
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        Thomas Gleixner <tglx@linutronix.de>,
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On 16.10.2018 09:03, Firoz Khan wrote:
> All the __IGNORE* entries are resides in the uapi header
> file move to non uapi header asm/unistd.h as it is not
> used by any user space applications.
> 
> It is correct to keep __IGNORE* entry in non uapi header
> asm/unistd.h while uapi/asm/unistd.h must hold information
> only useful for user space applications.
> 
> One of the patch in this patch series will generate uapi
> header file. The information which directly used by the
> user space application must be present in uapi file.
> 
> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>

You may add an 
Acked-by: Helge Deller <deller@gmx.de>

I've tested it by sucessfully booting a 32bit kernel.

Thanks!
Helge


> ---
>  arch/parisc/include/asm/unistd.h      | 6 ++++++
>  arch/parisc/include/uapi/asm/unistd.h | 7 -------
>  2 files changed, 6 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
> index 3d507d0..93fd9f6 100644
> --- a/arch/parisc/include/asm/unistd.h
> +++ b/arch/parisc/include/asm/unistd.h
> @@ -8,6 +8,12 @@
>  
>  #define SYS_ify(syscall_name)   __NR_##syscall_name
>  
> +#define __IGNORE_select                /* newselect */
> +#define __IGNORE_fadvise64             /* fadvise64_64 */
> +#define __IGNORE_pkey_mprotect
> +#define __IGNORE_pkey_alloc
> +#define __IGNORE_pkey_free
> +
>  #ifndef ASM_LINE_SEP
>  # define ASM_LINE_SEP ;
>  #endif
> diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
> index dc77c5a..bb52e12 100644
> --- a/arch/parisc/include/uapi/asm/unistd.h
> +++ b/arch/parisc/include/uapi/asm/unistd.h
> @@ -368,13 +368,6 @@
>  
>  #define __NR_Linux_syscalls	(__NR_io_pgetevents + 1)
>  
> -
> -#define __IGNORE_select		/* newselect */
> -#define __IGNORE_fadvise64	/* fadvise64_64 */
> -#define __IGNORE_pkey_mprotect
> -#define __IGNORE_pkey_alloc
> -#define __IGNORE_pkey_free
> -
>  #define LINUX_GATEWAY_ADDR      0x100
>  
>  #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */
> 



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From: Christoph Hellwig <hch@lst.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [PATCH] parisc: remove the dead ccio-rm-dma driver
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This driver has never been wired up due to the life of the Linux
git tree, and has severely bitrotted.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/parisc/Makefile      |   3 -
 drivers/parisc/ccio-rm-dma.c | 202 -----------------------------------
 2 files changed, 205 deletions(-)
 delete mode 100644 drivers/parisc/ccio-rm-dma.c

diff --git a/drivers/parisc/Makefile b/drivers/parisc/Makefile
index 3cd5e6cb8478..99fa6a89e0b9 100644
--- a/drivers/parisc/Makefile
+++ b/drivers/parisc/Makefile
@@ -8,9 +8,6 @@
 obj-$(CONFIG_IOSAPIC)		+= iosapic.o
 obj-$(CONFIG_IOMMU_SBA)		+= sba_iommu.o
 obj-$(CONFIG_PCI_LBA)		+= lba_pci.o
-
-# Only use one of them: ccio-rm-dma is for PCX-W systems *only*
-# obj-$(CONFIG_IOMMU_CCIO)	+= ccio-rm-dma.o
 obj-$(CONFIG_IOMMU_CCIO)	+= ccio-dma.o
 
 obj-$(CONFIG_GSC)		+= gsc.o
diff --git a/drivers/parisc/ccio-rm-dma.c b/drivers/parisc/ccio-rm-dma.c
deleted file mode 100644
index df7932af48b7..000000000000
--- a/drivers/parisc/ccio-rm-dma.c
+++ /dev/null
@@ -1,202 +0,0 @@
-/*
- * ccio-rm-dma.c:
- *	DMA management routines for first generation cache-coherent machines.
- *	"Real Mode" operation refers to U2/Uturn chip operation. The chip
- *      can perform coherency checks w/o using the I/O MMU. That's all we
- *      need until support for more than 4GB phys mem is needed.
- * 
- *	This is the trivial case - basically what x86 does.
- *
- *	Drawbacks of using Real Mode are:
- *	o outbound DMA is slower since one isn't using the prefetching
- *	  U2 can do for outbound DMA.
- *	o Ability to do scatter/gather in HW is also lost.
- *      o only known to work with PCX-W processor. (eg C360)
- *        (PCX-U/U+ are not coherent with U2 in real mode.)
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- *
- * Original version/author:
- *      CVSROOT=:pserver:anonymous@198.186.203.37:/cvsroot/linux-parisc
- *      cvs -z3 co linux/arch/parisc/kernel/dma-rm.c
- *
- *	(C) Copyright 2000 Philipp Rumpf <prumpf@tux.org>
- *
- *
- * Adopted for The Puffin Group's parisc-linux port by Grant Grundler.
- *	(C) Copyright 2000 Grant Grundler <grundler@puffin.external.hp.com>
- *	
- */
-
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/pci.h>
-#include <linux/gfp.h>
-
-#include <linux/uaccess.h>
-
-#include <asm/io.h>
-#include <asm/hardware.h>
-#include <asm/page.h>
-
-/* Only chose "ccio" since that's what HP-UX calls it....
-** Make it easier for folks to migrate from one to the other :^)
-*/
-#define MODULE_NAME "ccio"
-
-#define U2_IOA_RUNWAY 0x580
-#define U2_BC_GSC     0x501
-#define UTURN_IOA_RUNWAY 0x581
-#define UTURN_BC_GSC     0x502
-
-#define IS_U2(id) ( \
-    (((id)->hw_type == HPHW_IOA) && ((id)->hversion == U2_IOA_RUNWAY)) || \
-    (((id)->hw_type == HPHW_BCPORT) && ((id)->hversion == U2_BC_GSC))  \
-)
-
-#define IS_UTURN(id) ( \
-    (((id)->hw_type == HPHW_IOA) && ((id)->hversion == UTURN_IOA_RUNWAY)) || \
-    (((id)->hw_type == HPHW_BCPORT) && ((id)->hversion == UTURN_BC_GSC))  \
-)
-
-static int ccio_dma_supported( struct pci_dev *dev, u64 mask)
-{
-	if (dev == NULL) {
-		printk(KERN_ERR MODULE_NAME ": EISA/ISA/et al not supported\n");
-		BUG();
-		return(0);
-	}
-
-	/* only support 32-bit devices (ie PCI/GSC) */
-	return((int) (mask >= 0xffffffffUL));
-}
-
-
-static void *ccio_alloc_consistent(struct pci_dev *dev, size_t size,
-				 dma_addr_t *handle)
-{
-	void *ret;
-	
-	ret = (void *)__get_free_pages(GFP_ATOMIC, get_order(size));
-
-	if (ret != NULL) {
-		memset(ret, 0, size);
-		*handle = virt_to_phys(ret);
-	}
-	return ret;
-}
-	
-static void ccio_free_consistent(struct pci_dev *dev, size_t size,
-			       void *vaddr, dma_addr_t handle)
-{
-	free_pages((unsigned long)vaddr, get_order(size));
-}
-
-static dma_addr_t ccio_map_single(struct pci_dev *dev, void *ptr, size_t size,
-			  int direction)
-{
-	return virt_to_phys(ptr);
-}
-
-static void ccio_unmap_single(struct pci_dev *dev, dma_addr_t dma_addr,
-			    size_t size, int direction)
-{
-	/* Nothing to do */
-}
-
-
-static int ccio_map_sg(struct pci_dev *dev, struct scatterlist *sglist, int nents, int direction)
-{
-	int tmp = nents;
-
-        /* KISS: map each buffer separately. */
-	while (nents) {
-		sg_dma_address(sglist) = ccio_map_single(dev, sglist->address, sglist->length, direction);
-		sg_dma_len(sglist) = sglist->length;
-		nents--;
-		sglist++;
-	}
-
-	return tmp;
-}
-
-
-static void ccio_unmap_sg(struct pci_dev *dev, struct scatterlist *sglist, int nents, int direction)
-{
-#if 0
-	while (nents) {
-		ccio_unmap_single(dev, sg_dma_address(sglist), sg_dma_len(sglist), direction);
-		nents--;
-		sglist++;
-	}
-	return;
-#else
-	/* Do nothing (copied from current ccio_unmap_single()  :^) */
-#endif
-}
-
-
-static struct pci_dma_ops ccio_ops = {
-	ccio_dma_supported,
-	ccio_alloc_consistent,
-	ccio_free_consistent,
-	ccio_map_single,
-	ccio_unmap_single,
-	ccio_map_sg,
-	ccio_unmap_sg,
-	NULL,                   /* dma_sync_single_for_cpu : NOP for U2 */
-	NULL,                   /* dma_sync_single_for_device : NOP for U2 */
-	NULL,                   /* dma_sync_sg_for_cpu     : ditto */
-	NULL,                   /* dma_sync_sg_for_device     : ditto */
-};
-
-
-/*
-** Determine if u2 should claim this chip (return 0) or not (return 1).
-** If so, initialize the chip and tell other partners in crime they
-** have work to do.
-*/
-static int __init
-ccio_probe(struct parisc_device *dev)
-{
-	printk(KERN_INFO "%s found %s at 0x%lx\n", MODULE_NAME,
-			dev->id.hversion == U2_BC_GSC ? "U2" : "UTurn",
-			dev->hpa.start);
-
-/*
-** FIXME - should check U2 registers to verify it's really running
-** in "Real Mode".
-*/
-
-#if 0
-/* will need this for "Virtual Mode" operation */
-	ccio_hw_init(ccio_dev);
-	ccio_common_init(ccio_dev);
-#endif
-	hppa_dma_ops = &ccio_ops;
-	return 0;
-}
-
-static const struct parisc_device_id ccio_tbl[] __initconst = {
-	{ HPHW_BCPORT, HVERSION_REV_ANY_ID, U2_BC_GSC, 0xc },
-	{ HPHW_BCPORT, HVERSION_REV_ANY_ID, UTURN_BC_GSC, 0xc },
-	{ 0, }
-};
-
-static struct parisc_driver ccio_driver __refdata = {
-	.name =		"U2/Uturn",
-	.id_table =	ccio_tbl,
-	.probe =	ccio_probe,
-};
-
-void __init ccio_init(void)
-{
-	register_parisc_driver(&ccio_driver);
-}
-- 
2.19.1



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Subject: Re: [PATCH] parisc: remove the dead ccio-rm-dma driver
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On 22.10.2018 11:52, Christoph Hellwig wrote:
> This driver has never been wired up due to the life of the Linux
> git tree, and has severely bitrotted.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Thanks Christoph!

I've already queued it up in the parisc for-next git tree:
https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git/log/?h=for-next

Helge

> ---
>  drivers/parisc/Makefile      |   3 -
>  drivers/parisc/ccio-rm-dma.c | 202 -----------------------------------
>  2 files changed, 205 deletions(-)
>  delete mode 100644 drivers/parisc/ccio-rm-dma.c
> 
> diff --git a/drivers/parisc/Makefile b/drivers/parisc/Makefile
> index 3cd5e6cb8478..99fa6a89e0b9 100644
> --- a/drivers/parisc/Makefile
> +++ b/drivers/parisc/Makefile
> @@ -8,9 +8,6 @@
>  obj-$(CONFIG_IOSAPIC)		+= iosapic.o
>  obj-$(CONFIG_IOMMU_SBA)		+= sba_iommu.o
>  obj-$(CONFIG_PCI_LBA)		+= lba_pci.o
> -
> -# Only use one of them: ccio-rm-dma is for PCX-W systems *only*
> -# obj-$(CONFIG_IOMMU_CCIO)	+= ccio-rm-dma.o
>  obj-$(CONFIG_IOMMU_CCIO)	+= ccio-dma.o
>  
>  obj-$(CONFIG_GSC)		+= gsc.o
> diff --git a/drivers/parisc/ccio-rm-dma.c b/drivers/parisc/ccio-rm-dma.c
> deleted file mode 100644
> index df7932af48b7..000000000000
> --- a/drivers/parisc/ccio-rm-dma.c
> +++ /dev/null
> @@ -1,202 +0,0 @@
> -/*
> - * ccio-rm-dma.c:
> - *	DMA management routines for first generation cache-coherent machines.
> - *	"Real Mode" operation refers to U2/Uturn chip operation. The chip
> - *      can perform coherency checks w/o using the I/O MMU. That's all we
> - *      need until support for more than 4GB phys mem is needed.
> - * 
> - *	This is the trivial case - basically what x86 does.
> - *
> - *	Drawbacks of using Real Mode are:
> - *	o outbound DMA is slower since one isn't using the prefetching
> - *	  U2 can do for outbound DMA.
> - *	o Ability to do scatter/gather in HW is also lost.
> - *      o only known to work with PCX-W processor. (eg C360)
> - *        (PCX-U/U+ are not coherent with U2 in real mode.)
> - *
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License as published by
> - * the Free Software Foundation; either version 2 of the License, or
> - * (at your option) any later version.
> - *
> - *
> - * Original version/author:
> - *      CVSROOT=:pserver:anonymous@198.186.203.37:/cvsroot/linux-parisc
> - *      cvs -z3 co linux/arch/parisc/kernel/dma-rm.c
> - *
> - *	(C) Copyright 2000 Philipp Rumpf <prumpf@tux.org>
> - *
> - *
> - * Adopted for The Puffin Group's parisc-linux port by Grant Grundler.
> - *	(C) Copyright 2000 Grant Grundler <grundler@puffin.external.hp.com>
> - *	
> - */
> -
> -#include <linux/types.h>
> -#include <linux/init.h>
> -#include <linux/mm.h>
> -#include <linux/string.h>
> -#include <linux/pci.h>
> -#include <linux/gfp.h>
> -
> -#include <linux/uaccess.h>
> -
> -#include <asm/io.h>
> -#include <asm/hardware.h>
> -#include <asm/page.h>
> -
> -/* Only chose "ccio" since that's what HP-UX calls it....
> -** Make it easier for folks to migrate from one to the other :^)
> -*/
> -#define MODULE_NAME "ccio"
> -
> -#define U2_IOA_RUNWAY 0x580
> -#define U2_BC_GSC     0x501
> -#define UTURN_IOA_RUNWAY 0x581
> -#define UTURN_BC_GSC     0x502
> -
> -#define IS_U2(id) ( \
> -    (((id)->hw_type == HPHW_IOA) && ((id)->hversion == U2_IOA_RUNWAY)) || \
> -    (((id)->hw_type == HPHW_BCPORT) && ((id)->hversion == U2_BC_GSC))  \
> -)
> -
> -#define IS_UTURN(id) ( \
> -    (((id)->hw_type == HPHW_IOA) && ((id)->hversion == UTURN_IOA_RUNWAY)) || \
> -    (((id)->hw_type == HPHW_BCPORT) && ((id)->hversion == UTURN_BC_GSC))  \
> -)
> -
> -static int ccio_dma_supported( struct pci_dev *dev, u64 mask)
> -{
> -	if (dev == NULL) {
> -		printk(KERN_ERR MODULE_NAME ": EISA/ISA/et al not supported\n");
> -		BUG();
> -		return(0);
> -	}
> -
> -	/* only support 32-bit devices (ie PCI/GSC) */
> -	return((int) (mask >= 0xffffffffUL));
> -}
> -
> -
> -static void *ccio_alloc_consistent(struct pci_dev *dev, size_t size,
> -				 dma_addr_t *handle)
> -{
> -	void *ret;
> -	
> -	ret = (void *)__get_free_pages(GFP_ATOMIC, get_order(size));
> -
> -	if (ret != NULL) {
> -		memset(ret, 0, size);
> -		*handle = virt_to_phys(ret);
> -	}
> -	return ret;
> -}
> -	
> -static void ccio_free_consistent(struct pci_dev *dev, size_t size,
> -			       void *vaddr, dma_addr_t handle)
> -{
> -	free_pages((unsigned long)vaddr, get_order(size));
> -}
> -
> -static dma_addr_t ccio_map_single(struct pci_dev *dev, void *ptr, size_t size,
> -			  int direction)
> -{
> -	return virt_to_phys(ptr);
> -}
> -
> -static void ccio_unmap_single(struct pci_dev *dev, dma_addr_t dma_addr,
> -			    size_t size, int direction)
> -{
> -	/* Nothing to do */
> -}
> -
> -
> -static int ccio_map_sg(struct pci_dev *dev, struct scatterlist *sglist, int nents, int direction)
> -{
> -	int tmp = nents;
> -
> -        /* KISS: map each buffer separately. */
> -	while (nents) {
> -		sg_dma_address(sglist) = ccio_map_single(dev, sglist->address, sglist->length, direction);
> -		sg_dma_len(sglist) = sglist->length;
> -		nents--;
> -		sglist++;
> -	}
> -
> -	return tmp;
> -}
> -
> -
> -static void ccio_unmap_sg(struct pci_dev *dev, struct scatterlist *sglist, int nents, int direction)
> -{
> -#if 0
> -	while (nents) {
> -		ccio_unmap_single(dev, sg_dma_address(sglist), sg_dma_len(sglist), direction);
> -		nents--;
> -		sglist++;
> -	}
> -	return;
> -#else
> -	/* Do nothing (copied from current ccio_unmap_single()  :^) */
> -#endif
> -}
> -
> -
> -static struct pci_dma_ops ccio_ops = {
> -	ccio_dma_supported,
> -	ccio_alloc_consistent,
> -	ccio_free_consistent,
> -	ccio_map_single,
> -	ccio_unmap_single,
> -	ccio_map_sg,
> -	ccio_unmap_sg,
> -	NULL,                   /* dma_sync_single_for_cpu : NOP for U2 */
> -	NULL,                   /* dma_sync_single_for_device : NOP for U2 */
> -	NULL,                   /* dma_sync_sg_for_cpu     : ditto */
> -	NULL,                   /* dma_sync_sg_for_device     : ditto */
> -};
> -
> -
> -/*
> -** Determine if u2 should claim this chip (return 0) or not (return 1).
> -** If so, initialize the chip and tell other partners in crime they
> -** have work to do.
> -*/
> -static int __init
> -ccio_probe(struct parisc_device *dev)
> -{
> -	printk(KERN_INFO "%s found %s at 0x%lx\n", MODULE_NAME,
> -			dev->id.hversion == U2_BC_GSC ? "U2" : "UTurn",
> -			dev->hpa.start);
> -
> -/*
> -** FIXME - should check U2 registers to verify it's really running
> -** in "Real Mode".
> -*/
> -
> -#if 0
> -/* will need this for "Virtual Mode" operation */
> -	ccio_hw_init(ccio_dev);
> -	ccio_common_init(ccio_dev);
> -#endif
> -	hppa_dma_ops = &ccio_ops;
> -	return 0;
> -}
> -
> -static const struct parisc_device_id ccio_tbl[] __initconst = {
> -	{ HPHW_BCPORT, HVERSION_REV_ANY_ID, U2_BC_GSC, 0xc },
> -	{ HPHW_BCPORT, HVERSION_REV_ANY_ID, UTURN_BC_GSC, 0xc },
> -	{ 0, }
> -};
> -
> -static struct parisc_driver ccio_driver __refdata = {
> -	.name =		"U2/Uturn",
> -	.id_table =	ccio_tbl,
> -	.probe =	ccio_probe,
> -};
> -
> -void __init ccio_init(void)
> -{
> -	register_parisc_driver(&ccio_driver);
> -}
> 



From - Thu Nov 08 21:42:19 2018
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From: Michal Hocko <mhocko-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Newsgroups: gmane.linux.ports.arm.mediatek,gmane.comp.video.dri.devel,gmane.comp.file-systems.ceph.devel,gmane.linux.power-management.general,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.kernel.device-mapper.devel,gmane.comp.freedesktop.xorg.drivers.intel,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.kernel,gmane.linux.file-systems.ntfs.devel,gmane.linux.file-systems,gmane.linux.network,gmane.comp.freedesktop.amd-gfx,gmane.linux.nfs,gmane.linux.kernel.mm,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.kexec,gmane.linux.kernel.lsm
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On Mon 22-10-18 22:53:22, Arun KS wrote:
> Remove managed_page_count_lock spinlock and instead use atomic
> variables.

I assume this has been auto-generated. If yes, it would be better to
mention the script so that people can review it and regenerate for
comparision. Such a large change is hard to review manually.
-- 
Michal Hocko
SUSE Labs

From - Thu Nov 08 21:42:19 2018
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From: Arun Sudhilal <getarunks-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Newsgroups: gmane.linux.ports.arm.mediatek,gmane.comp.video.dri.devel,gmane.comp.file-systems.ceph.devel,gmane.linux.power-management.general,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.kernel.device-mapper.devel,gmane.comp.freedesktop.xorg.drivers.intel,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.kernel,gmane.linux.file-systems.ntfs.devel,gmane.linux.file-systems,gmane.linux.network,gmane.comp.freedesktop.amd-gfx,gmane.linux.nfs,gmane.linux.kernel.mm,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.kexec,gmane.linux.kernel.lsm
Subject: Re: [PATCH] mm: convert totalram_pages, totalhigh_pages and
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.arm.mediatek/15562>

On Mon, Oct 22, 2018 at 11:41 PM Michal Hocko <mhocko-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> wrote:
>
> On Mon 22-10-18 22:53:22, Arun KS wrote:
> > Remove managed_page_count_lock spinlock and instead use atomic
> > variables.
>

Hello Michal,
> I assume this has been auto-generated. If yes, it would be better to
> mention the script so that people can review it and regenerate for
> comparision. Such a large change is hard to review manually.

Changes were made partially with script.  For totalram_pages and
totalhigh_pages,

find dir -type f -exec sed -i
's/totalram_pages/atomic_long_read(\&totalram_pages)/g' {} \;
find dir -type f -exec sed -i
's/totalhigh_pages/atomic_long_read(\&totalhigh_pages)/g' {} \;

For managed_pages it was mostly manual edits after using,
find mm/ -type f -exec sed -i
's/zone->managed_pages/atomic_long_read(\&zone->managed_pages)/g' {}
\;

Regards,
Arun

> --
> Michal Hocko
> SUSE Labs

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Newsgroups: gmane.linux.ports.arm.mediatek,gmane.comp.video.dri.devel,gmane.comp.file-systems.ceph.devel,gmane.linux.power-management.general,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.comp.security.firewalls.netfilter.devel,gmane.linux.kernel.device-mapper.devel,gmane.comp.freedesktop.xorg.drivers.intel,gmane.linux.drivers.video-input-infrastructure,gmane.linux.ports.arm.kernel,gmane.linux.file-systems.ntfs.devel,gmane.linux.file-systems,gmane.linux.network,gmane.comp.freedesktop.amd-gfx,gmane.linux.nfs,gmane.linux.kernel.mm,gmane.linux.ports.ppc64.devel,gmane.linux.kernel.kexec,gmane.linux.kernel.lsm
Subject: Re: [PATCH] mm: convert totalram_pages, totalhigh_pages and
 managed_pages to atomic.
Date: Tue, 23 Oct 2018 10:18:26 +0530
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On 2018-10-23 09:45, Joe Perches wrote:
> On Mon, 2018-10-22 at 22:53 +0530, Arun KS wrote:
>> Remove managed_page_count_lock spinlock and instead use atomic
>> variables.
> 

Hello Joe,
> Perhaps better to define and use macros for the accesses
> instead of specific uses of atomic_long_<inc/dec/read>
> 
> Something like:
> 
> #define totalram_pages()	(unsigned 
> long)atomic_long_read(&_totalram_pages)
> #define totalram_pages_inc()	(unsigned 
> long)atomic_long_inc(&_totalram_pages)
> #define totalram_pages_dec()	(unsigned 
> long)atomic_long_dec(&_totalram_pages)

That sounds like a nice idea.

Regards,
Arun

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Subject: Re: [PATCH] mm: convert totalram_pages,
 totalhigh_pages and managed_pages to atomic.
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To: Arun KS <arunks-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
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Arun KS <arunks-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> writes:

> Remove managed_page_count_lock spinlock and instead use atomic
> variables.
>
> Suggested-by: Michal Hocko <mhocko-IBi9RG/b67k@public.gmane.org>
> Suggested-by: Vlastimil Babka <vbabka-AlSwsSmVLrQ@public.gmane.org>
> Signed-off-by: Arun KS <arunks-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
>
> ---
> As discussed here,
> https://patchwork.kernel.org/patch/10627521/#22261253

My 2 cents.  I think you should include at least part of the discussion
in the patch description to make it more readable by itself.

Best Regards,
Huang, Ying

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Subject: [GIT PULL] parisc architecture updates for kernel v4.20
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Hi Linus,

please pull the parisc architecture patches and fixes for 4.20-rc1 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.20-1

Lots of small fixes and enhancements, most noteably:

- Many TLB and cache flush optimizations (Dave)
- Fixed HPMC/crash handler on 64-bit kernel (Dave and myself)
- Added alternative infrastructre. The kernel now live-patches itself
  for various situations, e.g. replace SMP code when running on one CPU
  only or drop cache flushes when system has no cache installed.
- vmlinuz now contains a full copy of the compressed vmlinux file. This
  simplifies debugging the currently booted kernel.
- Unused driver removal (Christoph)
- Reduced warnings of Dino PCI bridge when running in qemu
- Removed gcc version check (Masahiro)

Thanks,
Helge

----------------------------------------------------------------
Christoph Hellwig (1):
      parisc: remove the dead ccio-rm-dma driver

Helge Deller (14):
      parisc: Use PARISC_ITLB_TRAP constant in entry.S
      parisc: Add SYSTEM_INFO and REGISTER TOC PAT functions
      parisc: Clean up crash header output
      parisc: dino: Utilize DINO_MASK_IRQ() macro
      parisc: Ratelimit dino stuck interrupt warnings
      parisc: Fix map_pages() to not overwrite existing pte entries
      parisc: Fix exported address of os_hpmc handler
      extract-vmlinux: Check for uncompressed image as fallback
      parisc: Include compressed vmlinux file in vmlinuz boot kernel
      parisc: Add alternative coding infrastructure
      parisc: Use zdep for shlw macro on PA1.1 and PA2.0
      parisc: Drop two instructions from pte lookup code
      parisc: Add PDC PAT cell_info() and pd_get_pdc_revisions() functions
      parisc: Retrieve and display the PDC PAT capabilities

John David Anglin (7):
      parisc: Reorder TLB flush timing calculation
      parisc: Remove PTE load and fault check from L2_ptep macro
      parisc: Release spinlocks using ordered store
      parisc: Purge TLB entries after updating page table entry and set page accessed flag in TLB handler
      parisc: Fix address in HPMC IVA
      parisc: Remove pte_inserted define
      parisc: Optimze cache flush algorithms

Masahiro Yamada (1):
      parisc: remove check for minimum required GCC version

 arch/parisc/Makefile                      |   9 -
 arch/parisc/boot/compressed/Makefile      |   4 +-
 arch/parisc/boot/compressed/misc.c        |  95 ++++++++--
 arch/parisc/boot/compressed/vmlinux.lds.S |  10 +-
 arch/parisc/include/asm/alternative.h     |  47 +++++
 arch/parisc/include/asm/assembly.h        |   9 +-
 arch/parisc/include/asm/cache.h           |  22 ++-
 arch/parisc/include/asm/page.h            |  12 +-
 arch/parisc/include/asm/pdc.h             |   1 +
 arch/parisc/include/asm/pdcpat.h          |  62 +++++--
 arch/parisc/include/asm/pgtable.h         |  33 ++--
 arch/parisc/include/asm/sections.h        |   2 +
 arch/parisc/include/asm/spinlock.h        |   4 +-
 arch/parisc/include/asm/tlbflush.h        |   3 +-
 arch/parisc/kernel/cache.c                |  63 ++++---
 arch/parisc/kernel/entry.S                |  34 ++--
 arch/parisc/kernel/firmware.c             |  57 ++++++
 arch/parisc/kernel/hpmc.S                 |   3 +-
 arch/parisc/kernel/inventory.c            |  10 ++
 arch/parisc/kernel/pacache.S              | 280 ++++++++++++++++++++++++++----
 arch/parisc/kernel/setup.c                |  81 +++++++++
 arch/parisc/kernel/signal.c               |   1 -
 arch/parisc/kernel/syscall.S              |  12 +-
 arch/parisc/kernel/traps.c                |   7 +-
 arch/parisc/kernel/vmlinux.lds.S          |   6 +
 arch/parisc/mm/init.c                     |  23 ++-
 drivers/parisc/Makefile                   |   3 -
 drivers/parisc/ccio-dma.c                 |  12 +-
 drivers/parisc/ccio-rm-dma.c              | 202 ---------------------
 drivers/parisc/dino.c                     |   5 +-
 drivers/parisc/sba_iommu.c                |  17 +-
 scripts/extract-vmlinux                   |   6 +-
 32 files changed, 721 insertions(+), 414 deletions(-)
 create mode 100644 arch/parisc/include/asm/alternative.h
 delete mode 100644 drivers/parisc/ccio-rm-dma.c


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On Tue, Oct 23, 2018 at 4:00 PM Helge Deller <deller@gmx.de> wrote:
>
> Lots of small fixes and enhancements, most noteably:

Pulled, thanks,

               Linus


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Xref: news.gmane.org gmane.linux.kernel.arc:4596 gmane.linux.kernel:2906456 gmane.linux.ports.mips.general:67150 gmane.linux.ports.sh.devel:57671 gmane.linux.kernel.cross-arch:48030 gmane.linux.ports.ia64:29417 gmane.linux.ports.hexagon:1937 gmane.linux.ports.arm.kernel:681169 gmane.linux.ports.parisc:29218 gmane.linux.ports.alpha:5350 gmane.linux.ports.sparc:28632 gmane.linux.ports.riscv:1179 gmane.linux.drivers.devicetree:294124 gmane.linux.ports.ppc64.devel:164833
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4596>

Hi all,

While investigating why ARM64 required a ton of objects to be rebuilt
when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
because we define __early_init_dt_declare_initrd() differently and we do
that in arch/arm64/include/asm/memory.h which gets included by a fair
amount of other header files, and translation units as well.

This patch series proposes adding an empty initrd.h to satisfy the need
for drivers/of/fdt.c to unconditionally include that file, and moves the
custom __early_init_dt_declare_initrd() definition away from
asm/memory.h

This cuts the number of objects rebuilds from 1920 down to 26, so a
factor 73 approximately.

Apologies for the long CC list, please let me know how you would go
about merging that and if another approach would be preferable, e.g:
introducing a CONFIG_ARCH_INITRD_BELOW_START_OK Kconfig option or
something like that.

Florian Fainelli (2):
  arch: Add asm-generic/initrd.h and make use of it for most
    architectures
  arm64: Create asm/initrd.h

 arch/alpha/include/asm/Kbuild      |  1 +
 arch/arc/include/asm/Kbuild        |  1 +
 arch/arm/include/asm/Kbuild        |  1 +
 arch/arm64/include/asm/initrd.h    | 13 +++++++++++++
 arch/arm64/include/asm/memory.h    |  8 --------
 arch/c6x/include/asm/Kbuild        |  1 +
 arch/h8300/include/asm/Kbuild      |  1 +
 arch/hexagon/include/asm/Kbuild    |  1 +
 arch/ia64/include/asm/Kbuild       |  1 +
 arch/m68k/include/asm/Kbuild       |  1 +
 arch/microblaze/include/asm/Kbuild |  1 +
 arch/mips/include/asm/Kbuild       |  1 +
 arch/nds32/include/asm/Kbuild      |  1 +
 arch/nios2/include/asm/Kbuild      |  1 +
 arch/openrisc/include/asm/Kbuild   |  1 +
 arch/parisc/include/asm/Kbuild     |  1 +
 arch/powerpc/include/asm/Kbuild    |  1 +
 arch/riscv/include/asm/Kbuild      |  1 +
 arch/s390/include/asm/Kbuild       |  1 +
 arch/sh/include/asm/Kbuild         |  1 +
 arch/sparc/include/asm/Kbuild      |  1 +
 arch/um/include/asm/Kbuild         |  1 +
 arch/unicore32/include/asm/Kbuild  |  1 +
 arch/x86/include/asm/Kbuild        |  1 +
 arch/xtensa/include/asm/Kbuild     |  1 +
 drivers/of/fdt.c                   |  1 +
 include/asm-generic/initrd.h       |  1 +
 27 files changed, 38 insertions(+), 8 deletions(-)
 create mode 100644 arch/arm64/include/asm/initrd.h
 create mode 100644 include/asm-generic/initrd.h

-- 
2.17.1

From - Thu Nov 08 21:42:20 2018
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From: Florian Fainelli <f.fainelli@gmail.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.drivers.devicetree,gmane.linux.ports.ppc64.devel
Subject: [PATCH 1/2] arch: Add asm-generic/initrd.h and make use of it for
 most architectures
Date: Tue, 23 Oct 2018 16:40:42 -0700
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Approved: news@gmane.org
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Cc: "open list:MIPS" <linux-mips@linux-mips.org>,
 Alan Kao <alankao@andestech.com>,
 "open list:SUPERH" <linux-sh@vger.kernel.org>,
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 Ralf Ba
To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4597>

In preparation for separating the definition of
__early_init_dt_declare_initrd() on ARM64 in order to cut the amount of
files that require a rebuild when CONFIG_BLK_DEV_INITRD value is
changed, introduce an empty asm-generic initrd.h file and update all
architectures but arm64 to make use of it.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 arch/alpha/include/asm/Kbuild      | 1 +
 arch/arc/include/asm/Kbuild        | 1 +
 arch/arm/include/asm/Kbuild        | 1 +
 arch/c6x/include/asm/Kbuild        | 1 +
 arch/h8300/include/asm/Kbuild      | 1 +
 arch/hexagon/include/asm/Kbuild    | 1 +
 arch/ia64/include/asm/Kbuild       | 1 +
 arch/m68k/include/asm/Kbuild       | 1 +
 arch/microblaze/include/asm/Kbuild | 1 +
 arch/mips/include/asm/Kbuild       | 1 +
 arch/nds32/include/asm/Kbuild      | 1 +
 arch/nios2/include/asm/Kbuild      | 1 +
 arch/openrisc/include/asm/Kbuild   | 1 +
 arch/parisc/include/asm/Kbuild     | 1 +
 arch/powerpc/include/asm/Kbuild    | 1 +
 arch/riscv/include/asm/Kbuild      | 1 +
 arch/s390/include/asm/Kbuild       | 1 +
 arch/sh/include/asm/Kbuild         | 1 +
 arch/sparc/include/asm/Kbuild      | 1 +
 arch/um/include/asm/Kbuild         | 1 +
 arch/unicore32/include/asm/Kbuild  | 1 +
 arch/x86/include/asm/Kbuild        | 1 +
 arch/xtensa/include/asm/Kbuild     | 1 +
 include/asm-generic/initrd.h       | 1 +
 24 files changed, 24 insertions(+)
 create mode 100644 include/asm-generic/initrd.h

diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild
index 0580cb8c84b2..cd6f723aed1b 100644
--- a/arch/alpha/include/asm/Kbuild
+++ b/arch/alpha/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += compat.h
 generic-y += exec.h
 generic-y += export.h
 generic-y += fb.h
+generic-y += initrd.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild
index feed50ce89fa..ba18632aa493 100644
--- a/arch/arc/include/asm/Kbuild
+++ b/arch/arc/include/asm/Kbuild
@@ -10,6 +10,7 @@ generic-y += fb.h
 generic-y += ftrace.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kmap_types.h
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index 1d66db9c9db5..b91d5b32e64f 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -4,6 +4,7 @@ generic-y += early_ioremap.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += kdebug.h
 generic-y += local.h
diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
index 33a2c94fed0d..9e14cf6e89b4 100644
--- a/arch/c6x/include/asm/Kbuild
+++ b/arch/c6x/include/asm/Kbuild
@@ -13,6 +13,7 @@ generic-y += extable.h
 generic-y += fb.h
 generic-y += futex.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += io.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
index a5d0b2991f47..7d4e06a757c8 100644
--- a/arch/h8300/include/asm/Kbuild
+++ b/arch/h8300/include/asm/Kbuild
@@ -19,6 +19,7 @@ generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hash.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index 47c4da3d64a4..0be62abf2123 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -13,6 +13,7 @@ generic-y += fb.h
 generic-y += ftrace.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += iomap.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild
index 557bbc8ba9f5..1a1f1e4ba0d5 100644
--- a/arch/ia64/include/asm/Kbuild
+++ b/arch/ia64/include/asm/Kbuild
@@ -1,5 +1,6 @@
 generic-y += compat.h
 generic-y += exec.h
+generic-y += initrd.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
index a4b8d3331a9e..9903551e0c9c 100644
--- a/arch/m68k/include/asm/Kbuild
+++ b/arch/m68k/include/asm/Kbuild
@@ -7,6 +7,7 @@ generic-y += exec.h
 generic-y += extable.h
 generic-y += futex.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
index 569ba9e670c1..ec37e6304be5 100644
--- a/arch/microblaze/include/asm/Kbuild
+++ b/arch/microblaze/include/asm/Kbuild
@@ -11,6 +11,7 @@ generic-y += exec.h
 generic-y += extable.h
 generic-y += fb.h
 generic-y += hardirq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild
index 9a81e72119da..005ef04a4c73 100644
--- a/arch/mips/include/asm/Kbuild
+++ b/arch/mips/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += device.h
 generic-y += dma-contiguous.h
 generic-y += emergency-restart.h
 generic-y += export.h
+generic-y += initrd.h
 generic-y += irq_work.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
diff --git a/arch/nds32/include/asm/Kbuild b/arch/nds32/include/asm/Kbuild
index dbc4e5422550..1400aaf0c840 100644
--- a/arch/nds32/include/asm/Kbuild
+++ b/arch/nds32/include/asm/Kbuild
@@ -25,6 +25,7 @@ generic-y += ftrace.h
 generic-y += gpio.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += ioctl.h
 generic-y += ioctls.h
 generic-y += irq.h
diff --git a/arch/nios2/include/asm/Kbuild b/arch/nios2/include/asm/Kbuild
index 8fde4fa2c34f..d89de02549ee 100644
--- a/arch/nios2/include/asm/Kbuild
+++ b/arch/nios2/include/asm/Kbuild
@@ -18,6 +18,7 @@ generic-y += ftrace.h
 generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
index eb87cd8327c8..296fd55e8473 100644
--- a/arch/openrisc/include/asm/Kbuild
+++ b/arch/openrisc/include/asm/Kbuild
@@ -15,6 +15,7 @@ generic-y += fb.h
 generic-y += ftrace.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 2013d639e735..1382d78a2477 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += div64.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild
index 3196d227e351..e3ea67c30605 100644
--- a/arch/powerpc/include/asm/Kbuild
+++ b/arch/powerpc/include/asm/Kbuild
@@ -1,5 +1,6 @@
 generic-y += div64.h
 generic-y += export.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += local64.h
diff --git a/arch/riscv/include/asm/Kbuild b/arch/riscv/include/asm/Kbuild
index efdbe311e936..0e67ed69c423 100644
--- a/arch/riscv/include/asm/Kbuild
+++ b/arch/riscv/include/asm/Kbuild
@@ -17,6 +17,7 @@ generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hash.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += ioctl.h
 generic-y += ioctls.h
 generic-y += ipcbuf.h
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index e3239772887a..dc618745d427 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -13,6 +13,7 @@ generic-y += div64.h
 generic-y += emergency-restart.h
 generic-y += export.h
 generic-y += fb.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kmap_types.h
diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index 6a5609a55965..c006a7cf3a43 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += div64.h
 generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += local.h
diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
index 410b263ef5c8..a5772c2a96c8 100644
--- a/arch/sparc/include/asm/Kbuild
+++ b/arch/sparc/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += div64.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += export.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += linkage.h
diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild
index b10dde6cb793..032cfe1b530b 100644
--- a/arch/um/include/asm/Kbuild
+++ b/arch/um/include/asm/Kbuild
@@ -12,6 +12,7 @@ generic-y += ftrace.h
 generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += io.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild
index 1372553dc0a9..32e7dea45fcd 100644
--- a/arch/unicore32/include/asm/Kbuild
+++ b/arch/unicore32/include/asm/Kbuild
@@ -13,6 +13,7 @@ generic-y += ftrace.h
 generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild
index a0ab9ab61c75..290bd1c3ee2d 100644
--- a/arch/x86/include/asm/Kbuild
+++ b/arch/x86/include/asm/Kbuild
@@ -9,5 +9,6 @@ generated-y += xen-hypercalls.h
 generic-y += dma-contiguous.h
 generic-y += early_ioremap.h
 generic-y += export.h
+generic-y += initrd.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index 82c756431b49..f2c363f2d22a 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -9,6 +9,7 @@ generic-y += exec.h
 generic-y += extable.h
 generic-y += fb.h
 generic-y += hardirq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/include/asm-generic/initrd.h b/include/asm-generic/initrd.h
new file mode 100644
index 000000000000..b1a49677fe25
--- /dev/null
+++ b/include/asm-generic/initrd.h
@@ -0,0 +1 @@
+/* no content, but patch(1) dislikes empty files */
-- 
2.17.1

From - Thu Nov 08 21:42:20 2018
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From: Florian Fainelli <f.fainelli@gmail.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.ia64,gmane.linux.ports.hexagon,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.drivers.devicetree,gmane.linux.ports.ppc64.devel
Subject: [PATCH 2/2] arm64: Create asm/initrd.h
Date: Tue, 23 Oct 2018 16:40:43 -0700
Lines: 70
Approved: news@gmane.org
Message-ID: <20181023234044.1138-3-f.fainelli@gmail.com>
References: <20181023234044.1138-1-f.fainelli@gmail.com>
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Cc: "open list:MIPS" <linux-mips@linux-mips.org>,
 Alan Kao <alankao@andestech.com>,
 "open list:SUPERH" <linux-sh@vger.kernel.org>,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
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 "open list:GENERIC INCLUDE/ASM HEADER FILES" <linux-arch@vger.kernel.org>,
 Michael Ellerman <mpe@ellerman.id.au>,
 "James E.J. Bottomley" <jejb@parisc-linux.org>,
 Geert Uytterhoeven <geert@linux-m68k.org>,
 Catalin Marinas <catalin.marinas@arm.com>, Matt Turner <mattst88@gmail.com>,
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 Ralf Ba
To: linux-kernel@vger.kernel.org
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Xref: news.gmane.org gmane.linux.kernel.arc:4598 gmane.linux.kernel:2906458 gmane.linux.ports.mips.general:67152 gmane.linux.ports.sh.devel:57673 gmane.linux.kernel.cross-arch:48032 gmane.linux.ports.ia64:29419 gmane.linux.ports.hexagon:1939 gmane.linux.ports.arm.kernel:681171 gmane.linux.ports.parisc:29220 gmane.linux.ports.alpha:5352 gmane.linux.ports.sparc:28634 gmane.linux.ports.riscv:1181 gmane.linux.drivers.devicetree:294126 gmane.linux.ports.ppc64.devel:164835
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4598>

ARM64 is the only architecture that requires a re-definition of
__early_init_dt_declare_initrd(). Now that we added the infrastructure
in asm-generic to provide an asm/initrd.h file, properly break up that
definition from asm/memory.h and make use of that header in
drivers/of/fdt.c where this is used.

This significantly cuts the number of objects that need to be rebuilt on
ARM64 due to the repercusions of including asm/memory.h in several
places.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 arch/arm64/include/asm/initrd.h | 13 +++++++++++++
 arch/arm64/include/asm/memory.h |  8 --------
 drivers/of/fdt.c                |  1 +
 3 files changed, 14 insertions(+), 8 deletions(-)
 create mode 100644 arch/arm64/include/asm/initrd.h

diff --git a/arch/arm64/include/asm/initrd.h b/arch/arm64/include/asm/initrd.h
new file mode 100644
index 000000000000..0c9572485810
--- /dev/null
+++ b/arch/arm64/include/asm/initrd.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_INITRD_H
+#define __ASM_INITRD_H
+
+#ifdef CONFIG_BLK_DEV_INITRD
+#define __early_init_dt_declare_initrd(__start, __end)			\
+	do {								\
+		initrd_start = (__start);				\
+		initrd_end = (__end);					\
+	} while (0)
+#endif
+
+#endif /* __ASM_INITRD_H */
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index b96442960aea..dc3ca21ba240 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -168,14 +168,6 @@
 #define IOREMAP_MAX_ORDER	(PMD_SHIFT)
 #endif
 
-#ifdef CONFIG_BLK_DEV_INITRD
-#define __early_init_dt_declare_initrd(__start, __end)			\
-	do {								\
-		initrd_start = (__start);				\
-		initrd_end = (__end);					\
-	} while (0)
-#endif
-
 #ifndef __ASSEMBLY__
 
 #include <linux/bitops.h>
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 800ad252cf9c..4e4711af907b 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -28,6 +28,7 @@
 
 #include <asm/setup.h>  /* for COMMAND_LINE_SIZE */
 #include <asm/page.h>
+#include <asm/initrd.h>
 
 #include "of_private.h"
 
-- 
2.17.1

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Subject: Re: [PATCH 1/4] treewide: remove unused address argument from
 pte_alloc functions (v2)
Date: Wed, 24 Oct 2018 10:37:16 +0200
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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To: "Joel Fernandes (Google)" <joel@joelfernandes.org>
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Xref: news.gmane.org gmane.linux.kernel.arc:4599 gmane.linux.ports.mips.general:67153 gmane.linux.ports.ia64:29420 gmane.linux.ports.sh.devel:57674 gmane.linux.kernel.mm:205921 gmane.linux.ports.sparc:28637 gmane.linux.ports.riscv:1182 gmane.comp.emulators.kvm.arm.devel:19582 gmane.linux.ports.hexagon:1940 gmane.linux.ports.parisc:29221 gmane.linux.kernel:2906702 gmane.linux.ports.alpha:5353 gmane.linux.ports.ppc64.devel:164850
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On Fri, Oct 12, 2018 at 06:31:57PM -0700, Joel Fernandes (Google) wrote:
> This series speeds up mremap(2) syscall by copying page tables at the
> PMD level even for non-THP systems. There is concern that the extra
> 'address' argument that mremap passes to pte_alloc may do something
> subtle architecture related in the future that may make the scheme not
> work.  Also we find that there is no point in passing the 'address' to
> pte_alloc since its unused. So this patch therefore removes this
> argument tree-wide resulting in a nice negative diff as well. Also
> ensuring along the way that the enabled architectures do not do anything
> funky with 'address' argument that goes unnoticed by the optimization.

Did you happen to look at the history of where that address argument
came from? -- just being curious here. ISTR something vague about
architectures having different paging structure for different memory
ranges.

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From: "Kirill A. Shutemov" <kirill@shutemov.name>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
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To: "Joel Fernandes (Google)" <joel@joelfernandes.org>
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On Fri, Oct 12, 2018 at 06:31:58PM -0700, Joel Fernandes (Google) wrote:
> diff --git a/mm/mremap.c b/mm/mremap.c
> index 9e68a02a52b1..2fd163cff406 100644
> --- a/mm/mremap.c
> +++ b/mm/mremap.c
> @@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
>  		drop_rmap_locks(vma);
>  }
>  
> +static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
> +		  unsigned long new_addr, unsigned long old_end,
> +		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
> +{
> +	spinlock_t *old_ptl, *new_ptl;
> +	struct mm_struct *mm = vma->vm_mm;
> +
> +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> +	    || old_end - old_addr < PMD_SIZE)
> +		return false;
> +
> +	/*
> +	 * The destination pmd shouldn't be established, free_pgtables()
> +	 * should have release it.
> +	 */
> +	if (WARN_ON(!pmd_none(*new_pmd)))
> +		return false;
> +
> +	/*
> +	 * We don't have to worry about the ordering of src and dst
> +	 * ptlocks because exclusive mmap_sem prevents deadlock.
> +	 */
> +	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
> +	if (old_ptl) {

How can it ever be false?

> +		pmd_t pmd;
> +
> +		new_ptl = pmd_lockptr(mm, new_pmd);
> +		if (new_ptl != old_ptl)
> +			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
> +
> +		/* Clear the pmd */
> +		pmd = *old_pmd;
> +		pmd_clear(old_pmd);
> +
> +		VM_BUG_ON(!pmd_none(*new_pmd));
> +
> +		/* Set the new pmd */
> +		set_pmd_at(mm, new_addr, new_pmd, pmd);
> +		if (new_ptl != old_ptl)
> +			spin_unlock(new_ptl);
> +		spin_unlock(old_ptl);
> +
> +		*need_flush = true;
> +		return true;
> +	}
> +	return false;
> +}
> +
-- 
 Kirill A. Shutemov

From - Thu Nov 08 21:42:20 2018
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Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
Date: Wed, 24 Oct 2018 22:57:33 +1100
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Approved: news@gmane.org
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References: <20181013013200.206928-1-joel@joelfernandes.org>
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To: "Kirill A. Shutemov" <kirill@shutemov.name>
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On Wed, Oct 24, 2018 at 01:12:56PM +0300, Kirill A. Shutemov wrote:
> On Fri, Oct 12, 2018 at 06:31:58PM -0700, Joel Fernandes (Google) wrote:
> > diff --git a/mm/mremap.c b/mm/mremap.c
> > index 9e68a02a52b1..2fd163cff406 100644
> > --- a/mm/mremap.c
> > +++ b/mm/mremap.c
> > @@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
> >  		drop_rmap_locks(vma);
> >  }
> >  
> > +static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
> > +		  unsigned long new_addr, unsigned long old_end,
> > +		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
> > +{
> > +	spinlock_t *old_ptl, *new_ptl;
> > +	struct mm_struct *mm = vma->vm_mm;
> > +
> > +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> > +	    || old_end - old_addr < PMD_SIZE)
> > +		return false;
> > +
> > +	/*
> > +	 * The destination pmd shouldn't be established, free_pgtables()
> > +	 * should have release it.
> > +	 */
> > +	if (WARN_ON(!pmd_none(*new_pmd)))
> > +		return false;
> > +
> > +	/*
> > +	 * We don't have to worry about the ordering of src and dst
> > +	 * ptlocks because exclusive mmap_sem prevents deadlock.
> > +	 */
> > +	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
> > +	if (old_ptl) {
> 
> How can it ever be false?
> 
> > +		pmd_t pmd;
> > +
> > +		new_ptl = pmd_lockptr(mm, new_pmd);


Looks like this is largely inspired by move_huge_pmd(), I guess a lot of
the code applies, why not just reuse as much as possible? The same comments
w.r.t mmap_sem helping protect against lock order issues applies as well.

> > +		if (new_ptl != old_ptl)
> > +			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
> > +
> > +		/* Clear the pmd */
> > +		pmd = *old_pmd;
> > +		pmd_clear(old_pmd);
> > +
> > +		VM_BUG_ON(!pmd_none(*new_pmd));
> > +
> > +		/* Set the new pmd */
> > +		set_pmd_at(mm, new_addr, new_pmd, pmd);
> > +		if (new_ptl != old_ptl)
> > +			spin_unlock(new_ptl);
> > +		spin_unlock(old_ptl);
> > +
> > +		*need_flush = true;
> > +		return true;
> > +	}
> > +	return false;
> > +}
> > +
> -- 
>  Kirill A. Shutemov
> 

From - Thu Nov 08 21:42:20 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
Date: Wed, 24 Oct 2018 15:57:24 +0300
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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To: Balbir Singh <bsingharora@gmail.com>
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On Wed, Oct 24, 2018 at 10:57:33PM +1100, Balbir Singh wrote:
> On Wed, Oct 24, 2018 at 01:12:56PM +0300, Kirill A. Shutemov wrote:
> > On Fri, Oct 12, 2018 at 06:31:58PM -0700, Joel Fernandes (Google) wrote:
> > > diff --git a/mm/mremap.c b/mm/mremap.c
> > > index 9e68a02a52b1..2fd163cff406 100644
> > > --- a/mm/mremap.c
> > > +++ b/mm/mremap.c
> > > @@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
> > >  		drop_rmap_locks(vma);
> > >  }
> > >  
> > > +static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
> > > +		  unsigned long new_addr, unsigned long old_end,
> > > +		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
> > > +{
> > > +	spinlock_t *old_ptl, *new_ptl;
> > > +	struct mm_struct *mm = vma->vm_mm;
> > > +
> > > +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> > > +	    || old_end - old_addr < PMD_SIZE)
> > > +		return false;
> > > +
> > > +	/*
> > > +	 * The destination pmd shouldn't be established, free_pgtables()
> > > +	 * should have release it.
> > > +	 */
> > > +	if (WARN_ON(!pmd_none(*new_pmd)))
> > > +		return false;
> > > +
> > > +	/*
> > > +	 * We don't have to worry about the ordering of src and dst
> > > +	 * ptlocks because exclusive mmap_sem prevents deadlock.
> > > +	 */
> > > +	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
> > > +	if (old_ptl) {
> > 
> > How can it ever be false?
> > 
> > > +		pmd_t pmd;
> > > +
> > > +		new_ptl = pmd_lockptr(mm, new_pmd);
> 
> 
> Looks like this is largely inspired by move_huge_pmd(), I guess a lot of
> the code applies, why not just reuse as much as possible? The same comments
> w.r.t mmap_sem helping protect against lock order issues applies as well.

pmd_lock() cannot fail, but __pmd_trans_huge_lock() can. We should not
copy the code blindly.

-- 
 Kirill A. Shutemov

From - Thu Nov 08 21:42:20 2018
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From: Florian Fainelli <f.fainelli@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.riscv,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.devicetree,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 0/2] arm64: Cut rebuild time when changing CONFIG_BLK_DEV_INITRD
Date: Wed, 24 Oct 2018 12:32:54 -0700
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2907118>

Hi all,

While investigating why ARM64 required a ton of objects to be rebuilt
when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
because we define __early_init_dt_declare_initrd() differently and we do
that in arch/arm64/include/asm/memory.h which gets included by a fair
amount of other header files, and translation units as well.

Changing the value of CONFIG_DEV_BLK_INITRD is a common thing with build
systems that generate two kernels: one with the initramfs and one
without. buildroot is one of these build systems, OpenWrt is also
another one that does this.

This patch series proposes adding an empty initrd.h to satisfy the need
for drivers/of/fdt.c to unconditionally include that file, and moves the
custom __early_init_dt_declare_initrd() definition away from
asm/memory.h

This cuts the number of objects rebuilds from 1920 down to 26, so a
factor 73 approximately.

Apologies for the long CC list, please let me know how you would go
about merging that and if another approach would be preferable, e.g:
introducing a CONFIG_ARCH_INITRD_BELOW_START_OK Kconfig option or
something like that.

Changes in v2:

- put an /* empty */ comment in the asm-generic/initrd.h file
- trim down the CC list to maximize the chances of people receiving this

Florian Fainelli (2):
  arch: Add asm-generic/initrd.h and make use of it for most
    architectures
  arm64: Create asm/initrd.h

 arch/alpha/include/asm/Kbuild      |  1 +
 arch/arc/include/asm/Kbuild        |  1 +
 arch/arm/include/asm/Kbuild        |  1 +
 arch/arm64/include/asm/initrd.h    | 13 +++++++++++++
 arch/arm64/include/asm/memory.h    |  8 --------
 arch/c6x/include/asm/Kbuild        |  1 +
 arch/h8300/include/asm/Kbuild      |  1 +
 arch/hexagon/include/asm/Kbuild    |  1 +
 arch/ia64/include/asm/Kbuild       |  1 +
 arch/m68k/include/asm/Kbuild       |  1 +
 arch/microblaze/include/asm/Kbuild |  1 +
 arch/mips/include/asm/Kbuild       |  1 +
 arch/nds32/include/asm/Kbuild      |  1 +
 arch/nios2/include/asm/Kbuild      |  1 +
 arch/openrisc/include/asm/Kbuild   |  1 +
 arch/parisc/include/asm/Kbuild     |  1 +
 arch/powerpc/include/asm/Kbuild    |  1 +
 arch/riscv/include/asm/Kbuild      |  1 +
 arch/s390/include/asm/Kbuild       |  1 +
 arch/sh/include/asm/Kbuild         |  1 +
 arch/sparc/include/asm/Kbuild      |  1 +
 arch/um/include/asm/Kbuild         |  1 +
 arch/unicore32/include/asm/Kbuild  |  1 +
 arch/x86/include/asm/Kbuild        |  1 +
 arch/xtensa/include/asm/Kbuild     |  1 +
 drivers/of/fdt.c                   |  1 +
 include/asm-generic/initrd.h       |  1 +
 27 files changed, 38 insertions(+), 8 deletions(-)
 create mode 100644 arch/arm64/include/asm/initrd.h
 create mode 100644 include/asm-generic/initrd.h

-- 
2.17.1



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Subject: [PATCH v2 1/2] arch: Add asm-generic/initrd.h and make use of it for most architectures
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2907119>

In preparation for separating the definition of
__early_init_dt_declare_initrd() on ARM64 in order to cut the amount of
files that require a rebuild when CONFIG_BLK_DEV_INITRD value is
changed, introduce an empty asm-generic initrd.h file and update all
architectures but arm64 to make use of it.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 arch/alpha/include/asm/Kbuild      | 1 +
 arch/arc/include/asm/Kbuild        | 1 +
 arch/arm/include/asm/Kbuild        | 1 +
 arch/c6x/include/asm/Kbuild        | 1 +
 arch/h8300/include/asm/Kbuild      | 1 +
 arch/hexagon/include/asm/Kbuild    | 1 +
 arch/ia64/include/asm/Kbuild       | 1 +
 arch/m68k/include/asm/Kbuild       | 1 +
 arch/microblaze/include/asm/Kbuild | 1 +
 arch/mips/include/asm/Kbuild       | 1 +
 arch/nds32/include/asm/Kbuild      | 1 +
 arch/nios2/include/asm/Kbuild      | 1 +
 arch/openrisc/include/asm/Kbuild   | 1 +
 arch/parisc/include/asm/Kbuild     | 1 +
 arch/powerpc/include/asm/Kbuild    | 1 +
 arch/riscv/include/asm/Kbuild      | 1 +
 arch/s390/include/asm/Kbuild       | 1 +
 arch/sh/include/asm/Kbuild         | 1 +
 arch/sparc/include/asm/Kbuild      | 1 +
 arch/um/include/asm/Kbuild         | 1 +
 arch/unicore32/include/asm/Kbuild  | 1 +
 arch/x86/include/asm/Kbuild        | 1 +
 arch/xtensa/include/asm/Kbuild     | 1 +
 include/asm-generic/initrd.h       | 1 +
 24 files changed, 24 insertions(+)
 create mode 100644 include/asm-generic/initrd.h

diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild
index 0580cb8c84b2..cd6f723aed1b 100644
--- a/arch/alpha/include/asm/Kbuild
+++ b/arch/alpha/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += compat.h
 generic-y += exec.h
 generic-y += export.h
 generic-y += fb.h
+generic-y += initrd.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild
index feed50ce89fa..ba18632aa493 100644
--- a/arch/arc/include/asm/Kbuild
+++ b/arch/arc/include/asm/Kbuild
@@ -10,6 +10,7 @@ generic-y += fb.h
 generic-y += ftrace.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kmap_types.h
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index 1d66db9c9db5..b91d5b32e64f 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -4,6 +4,7 @@ generic-y += early_ioremap.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += kdebug.h
 generic-y += local.h
diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
index 33a2c94fed0d..9e14cf6e89b4 100644
--- a/arch/c6x/include/asm/Kbuild
+++ b/arch/c6x/include/asm/Kbuild
@@ -13,6 +13,7 @@ generic-y += extable.h
 generic-y += fb.h
 generic-y += futex.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += io.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
index a5d0b2991f47..7d4e06a757c8 100644
--- a/arch/h8300/include/asm/Kbuild
+++ b/arch/h8300/include/asm/Kbuild
@@ -19,6 +19,7 @@ generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hash.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index 47c4da3d64a4..0be62abf2123 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -13,6 +13,7 @@ generic-y += fb.h
 generic-y += ftrace.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += iomap.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild
index 557bbc8ba9f5..1a1f1e4ba0d5 100644
--- a/arch/ia64/include/asm/Kbuild
+++ b/arch/ia64/include/asm/Kbuild
@@ -1,5 +1,6 @@
 generic-y += compat.h
 generic-y += exec.h
+generic-y += initrd.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
index a4b8d3331a9e..9903551e0c9c 100644
--- a/arch/m68k/include/asm/Kbuild
+++ b/arch/m68k/include/asm/Kbuild
@@ -7,6 +7,7 @@ generic-y += exec.h
 generic-y += extable.h
 generic-y += futex.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
index 569ba9e670c1..ec37e6304be5 100644
--- a/arch/microblaze/include/asm/Kbuild
+++ b/arch/microblaze/include/asm/Kbuild
@@ -11,6 +11,7 @@ generic-y += exec.h
 generic-y += extable.h
 generic-y += fb.h
 generic-y += hardirq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild
index 9a81e72119da..005ef04a4c73 100644
--- a/arch/mips/include/asm/Kbuild
+++ b/arch/mips/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += device.h
 generic-y += dma-contiguous.h
 generic-y += emergency-restart.h
 generic-y += export.h
+generic-y += initrd.h
 generic-y += irq_work.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
diff --git a/arch/nds32/include/asm/Kbuild b/arch/nds32/include/asm/Kbuild
index dbc4e5422550..1400aaf0c840 100644
--- a/arch/nds32/include/asm/Kbuild
+++ b/arch/nds32/include/asm/Kbuild
@@ -25,6 +25,7 @@ generic-y += ftrace.h
 generic-y += gpio.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += ioctl.h
 generic-y += ioctls.h
 generic-y += irq.h
diff --git a/arch/nios2/include/asm/Kbuild b/arch/nios2/include/asm/Kbuild
index 8fde4fa2c34f..d89de02549ee 100644
--- a/arch/nios2/include/asm/Kbuild
+++ b/arch/nios2/include/asm/Kbuild
@@ -18,6 +18,7 @@ generic-y += ftrace.h
 generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
index eb87cd8327c8..296fd55e8473 100644
--- a/arch/openrisc/include/asm/Kbuild
+++ b/arch/openrisc/include/asm/Kbuild
@@ -15,6 +15,7 @@ generic-y += fb.h
 generic-y += ftrace.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 2013d639e735..1382d78a2477 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += div64.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild
index 3196d227e351..e3ea67c30605 100644
--- a/arch/powerpc/include/asm/Kbuild
+++ b/arch/powerpc/include/asm/Kbuild
@@ -1,5 +1,6 @@
 generic-y += div64.h
 generic-y += export.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += local64.h
diff --git a/arch/riscv/include/asm/Kbuild b/arch/riscv/include/asm/Kbuild
index efdbe311e936..0e67ed69c423 100644
--- a/arch/riscv/include/asm/Kbuild
+++ b/arch/riscv/include/asm/Kbuild
@@ -17,6 +17,7 @@ generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hash.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += ioctl.h
 generic-y += ioctls.h
 generic-y += ipcbuf.h
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index e3239772887a..dc618745d427 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -13,6 +13,7 @@ generic-y += div64.h
 generic-y += emergency-restart.h
 generic-y += export.h
 generic-y += fb.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kmap_types.h
diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index 6a5609a55965..c006a7cf3a43 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += div64.h
 generic-y += dma-mapping.h
 generic-y += emergency-restart.h
 generic-y += exec.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += local.h
diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
index 410b263ef5c8..a5772c2a96c8 100644
--- a/arch/sparc/include/asm/Kbuild
+++ b/arch/sparc/include/asm/Kbuild
@@ -5,6 +5,7 @@ generic-y += div64.h
 generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += export.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += linkage.h
diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild
index b10dde6cb793..032cfe1b530b 100644
--- a/arch/um/include/asm/Kbuild
+++ b/arch/um/include/asm/Kbuild
@@ -12,6 +12,7 @@ generic-y += ftrace.h
 generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += io.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild
index 1372553dc0a9..32e7dea45fcd 100644
--- a/arch/unicore32/include/asm/Kbuild
+++ b/arch/unicore32/include/asm/Kbuild
@@ -13,6 +13,7 @@ generic-y += ftrace.h
 generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild
index a0ab9ab61c75..290bd1c3ee2d 100644
--- a/arch/x86/include/asm/Kbuild
+++ b/arch/x86/include/asm/Kbuild
@@ -9,5 +9,6 @@ generated-y += xen-hypercalls.h
 generic-y += dma-contiguous.h
 generic-y += early_ioremap.h
 generic-y += export.h
+generic-y += initrd.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index 82c756431b49..f2c363f2d22a 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -9,6 +9,7 @@ generic-y += exec.h
 generic-y += extable.h
 generic-y += fb.h
 generic-y += hardirq.h
+generic-y += initrd.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
diff --git a/include/asm-generic/initrd.h b/include/asm-generic/initrd.h
new file mode 100644
index 000000000000..40a8c178f10d
--- /dev/null
+++ b/include/asm-generic/initrd.h
@@ -0,0 +1 @@
+/* empty */
-- 
2.17.1



From - Thu Nov 08 21:42:20 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Florian Fainelli <f.fainelli@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.riscv,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.devicetree,gmane.linux.kernel.cross-arch
Subject: [PATCH v2 2/2] arm64: Create asm/initrd.h
Date: Wed, 24 Oct 2018 12:32:56 -0700
Lines: 72
Approved: news@gmane.org
Message-ID: <20181024193256.23734-3-f.fainelli@gmail.com>
References: <20181024193256.23734-1-f.fainelli@gmail.com>
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Cc: Florian Fainelli <f.fainelli@gmail.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Arnd Bergmann <arnd@arndb.de>,
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2907120>

ARM64 is the only architecture that requires a re-definition of
__early_init_dt_declare_initrd(). Now that we added the infrastructure
in asm-generic to provide an asm/initrd.h file, properly break up that
definition from asm/memory.h and make use of that header in
drivers/of/fdt.c where this is used.

This significantly cuts the number of objects that need to be rebuilt on
ARM64 due to the repercusions of including asm/memory.h in several
places.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 arch/arm64/include/asm/initrd.h | 13 +++++++++++++
 arch/arm64/include/asm/memory.h |  8 --------
 drivers/of/fdt.c                |  1 +
 3 files changed, 14 insertions(+), 8 deletions(-)
 create mode 100644 arch/arm64/include/asm/initrd.h

diff --git a/arch/arm64/include/asm/initrd.h b/arch/arm64/include/asm/initrd.h
new file mode 100644
index 000000000000..0c9572485810
--- /dev/null
+++ b/arch/arm64/include/asm/initrd.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_INITRD_H
+#define __ASM_INITRD_H
+
+#ifdef CONFIG_BLK_DEV_INITRD
+#define __early_init_dt_declare_initrd(__start, __end)			\
+	do {								\
+		initrd_start = (__start);				\
+		initrd_end = (__end);					\
+	} while (0)
+#endif
+
+#endif /* __ASM_INITRD_H */
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index b96442960aea..dc3ca21ba240 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -168,14 +168,6 @@
 #define IOREMAP_MAX_ORDER	(PMD_SHIFT)
 #endif
 
-#ifdef CONFIG_BLK_DEV_INITRD
-#define __early_init_dt_declare_initrd(__start, __end)			\
-	do {								\
-		initrd_start = (__start);				\
-		initrd_end = (__end);					\
-	} while (0)
-#endif
-
 #ifndef __ASSEMBLY__
 
 #include <linux/bitops.h>
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 800ad252cf9c..4e4711af907b 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -28,6 +28,7 @@
 
 #include <asm/setup.h>  /* for COMMAND_LINE_SIZE */
 #include <asm/page.h>
+#include <asm/initrd.h>
 
 #include "of_private.h"
 
-- 
2.17.1



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Subject: Re: [PATCH v2 0/2] arm64: Cut rebuild time when changing CONFIG_BLK_DEV_INITRD
Date: Wed, 24 Oct 2018 14:55:17 -0500
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        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
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To: Florian Fainelli <f.fainelli@gmail.com>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2907136>

On Wed, Oct 24, 2018 at 2:33 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
>
> Hi all,
>
> While investigating why ARM64 required a ton of objects to be rebuilt
> when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
> because we define __early_init_dt_declare_initrd() differently and we do
> that in arch/arm64/include/asm/memory.h which gets included by a fair
> amount of other header files, and translation units as well.

I scratch my head sometimes as to why some config options rebuild so
much stuff. One down, ? to go. :)

> Changing the value of CONFIG_DEV_BLK_INITRD is a common thing with build
> systems that generate two kernels: one with the initramfs and one
> without. buildroot is one of these build systems, OpenWrt is also
> another one that does this.
>
> This patch series proposes adding an empty initrd.h to satisfy the need
> for drivers/of/fdt.c to unconditionally include that file, and moves the
> custom __early_init_dt_declare_initrd() definition away from
> asm/memory.h
>
> This cuts the number of objects rebuilds from 1920 down to 26, so a
> factor 73 approximately.
>
> Apologies for the long CC list, please let me know how you would go
> about merging that and if another approach would be preferable, e.g:
> introducing a CONFIG_ARCH_INITRD_BELOW_START_OK Kconfig option or
> something like that.

There may be a better way as of 4.20 because bootmem is now gone and
only memblock is used. This should unify what each arch needs to do
with initrd early. We need the physical address early for memblock
reserving. Then later on we need the virtual address to access the
initrd. Perhaps we should just change initrd_start and initrd_end to
physical addresses (or add 2 new variables would be less invasive and
allow for different translation than __va()). The sanity checks and
memblock reserve could also perhaps be moved to a common location.

Alternatively, given arm64 is the only oddball, I'd be fine with an
"if (IS_ENABLED(CONFIG_ARM64))" condition in the default
__early_init_dt_declare_initrd as long as we have a path to removing
it like the above option.

Rob


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Subject: Re: [PATCH v2 0/2] arm64: Cut rebuild time when changing
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On 10/24/18 12:55 PM, Rob Herring wrote:
> On Wed, Oct 24, 2018 at 2:33 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
>>
>> Hi all,
>>
>> While investigating why ARM64 required a ton of objects to be rebuilt
>> when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
>> because we define __early_init_dt_declare_initrd() differently and we do
>> that in arch/arm64/include/asm/memory.h which gets included by a fair
>> amount of other header files, and translation units as well.
> 
> I scratch my head sometimes as to why some config options rebuild so
> much stuff. One down, ? to go. :)
> 

This one was by far the most invasive one due to its include chain, but
yes, there would be many more that could be optimized.

>> Changing the value of CONFIG_DEV_BLK_INITRD is a common thing with build
>> systems that generate two kernels: one with the initramfs and one
>> without. buildroot is one of these build systems, OpenWrt is also
>> another one that does this.
>>
>> This patch series proposes adding an empty initrd.h to satisfy the need
>> for drivers/of/fdt.c to unconditionally include that file, and moves the
>> custom __early_init_dt_declare_initrd() definition away from
>> asm/memory.h
>>
>> This cuts the number of objects rebuilds from 1920 down to 26, so a
>> factor 73 approximately.
>>
>> Apologies for the long CC list, please let me know how you would go
>> about merging that and if another approach would be preferable, e.g:
>> introducing a CONFIG_ARCH_INITRD_BELOW_START_OK Kconfig option or
>> something like that.
> 
> There may be a better way as of 4.20 because bootmem is now gone and
> only memblock is used. This should unify what each arch needs to do
> with initrd early. We need the physical address early for memblock
> reserving. Then later on we need the virtual address to access the
> initrd. Perhaps we should just change initrd_start and initrd_end to
> physical addresses (or add 2 new variables would be less invasive and
> allow for different translation than __va()). The sanity checks and
> memblock reserve could also perhaps be moved to a common location.
> 
> Alternatively, given arm64 is the only oddball, I'd be fine with an
> "if (IS_ENABLED(CONFIG_ARM64))" condition in the default
> __early_init_dt_declare_initrd as long as we have a path to removing
> it like the above option.

OK, let me cook a patch doing that and meanwhile I will look at how much
work is involved to implement the above option you outlined, which also
sounds entirely reasonable.

Thanks!
-- 
Florian


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Subject: Re: [PATCH v2 0/2] arm64: Cut rebuild time when changing CONFIG_BLK_DEV_INITRD
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To: Florian Fainelli <f.fainelli@gmail.com>
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On Wed, Oct 24, 2018 at 3:01 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
>
> On 10/24/18 12:55 PM, Rob Herring wrote:
> > On Wed, Oct 24, 2018 at 2:33 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
> >>
> >> Hi all,
> >>
> >> While investigating why ARM64 required a ton of objects to be rebuilt
> >> when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
> >> because we define __early_init_dt_declare_initrd() differently and we do
> >> that in arch/arm64/include/asm/memory.h which gets included by a fair
> >> amount of other header files, and translation units as well.
> >
> > I scratch my head sometimes as to why some config options rebuild so
> > much stuff. One down, ? to go. :)
> >
>
> This one was by far the most invasive one due to its include chain, but
> yes, there would be many more that could be optimized.
>
> >> Changing the value of CONFIG_DEV_BLK_INITRD is a common thing with build
> >> systems that generate two kernels: one with the initramfs and one
> >> without. buildroot is one of these build systems, OpenWrt is also
> >> another one that does this.
> >>
> >> This patch series proposes adding an empty initrd.h to satisfy the need
> >> for drivers/of/fdt.c to unconditionally include that file, and moves the
> >> custom __early_init_dt_declare_initrd() definition away from
> >> asm/memory.h
> >>
> >> This cuts the number of objects rebuilds from 1920 down to 26, so a
> >> factor 73 approximately.
> >>
> >> Apologies for the long CC list, please let me know how you would go
> >> about merging that and if another approach would be preferable, e.g:
> >> introducing a CONFIG_ARCH_INITRD_BELOW_START_OK Kconfig option or
> >> something like that.
> >
> > There may be a better way as of 4.20 because bootmem is now gone and
> > only memblock is used. This should unify what each arch needs to do
> > with initrd early. We need the physical address early for memblock
> > reserving. Then later on we need the virtual address to access the
> > initrd. Perhaps we should just change initrd_start and initrd_end to
> > physical addresses (or add 2 new variables would be less invasive and
> > allow for different translation than __va()). The sanity checks and
> > memblock reserve could also perhaps be moved to a common location.
> >
> > Alternatively, given arm64 is the only oddball, I'd be fine with an
> > "if (IS_ENABLED(CONFIG_ARM64))" condition in the default
> > __early_init_dt_declare_initrd as long as we have a path to removing
> > it like the above option.
>
> OK, let me cook a patch doing that and meanwhile I will look at how much
> work is involved to implement the above option you outlined, which also
> sounds entirely reasonable.

BTW, I would suspect that initrd_below_start_ok being 1 is not okay
for most arches. I'm not sure how that would work. min_low_pfn is
typically based on the start of memory. arm64 is not even setting it.

Rob

> --
> Florian


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Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
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On Wed, Oct 24, 2018 at 03:57:24PM +0300, Kirill A. Shutemov wrote:
> On Wed, Oct 24, 2018 at 10:57:33PM +1100, Balbir Singh wrote:
> > On Wed, Oct 24, 2018 at 01:12:56PM +0300, Kirill A. Shutemov wrote:
> > > On Fri, Oct 12, 2018 at 06:31:58PM -0700, Joel Fernandes (Google) wrote:
> > > > diff --git a/mm/mremap.c b/mm/mremap.c
> > > > index 9e68a02a52b1..2fd163cff406 100644
> > > > --- a/mm/mremap.c
> > > > +++ b/mm/mremap.c
> > > > @@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
> > > >  		drop_rmap_locks(vma);
> > > >  }
> > > >  
> > > > +static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
> > > > +		  unsigned long new_addr, unsigned long old_end,
> > > > +		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
> > > > +{
> > > > +	spinlock_t *old_ptl, *new_ptl;
> > > > +	struct mm_struct *mm = vma->vm_mm;
> > > > +
> > > > +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> > > > +	    || old_end - old_addr < PMD_SIZE)
> > > > +		return false;
> > > > +
> > > > +	/*
> > > > +	 * The destination pmd shouldn't be established, free_pgtables()
> > > > +	 * should have release it.
> > > > +	 */
> > > > +	if (WARN_ON(!pmd_none(*new_pmd)))
> > > > +		return false;
> > > > +
> > > > +	/*
> > > > +	 * We don't have to worry about the ordering of src and dst
> > > > +	 * ptlocks because exclusive mmap_sem prevents deadlock.
> > > > +	 */
> > > > +	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
> > > > +	if (old_ptl) {
> > > 
> > > How can it ever be false?

Kirill,
It cannot, you are right. I'll remove the test.

By the way, there are new changes upstream by Linus which flush the TLB
before releasing the ptlock instead of after. I'm guessing that patch came
about because of reviews of this patch and someone spotted an issue in the
existing code :)

Anyway the patch in concern is:
eb66ae030829 ("mremap: properly flush TLB before releasing the page")

I need to rebase on top of that with appropriate modifications, but I worry
that this patch will slow down performance since we have to flush at every
PMD/PTE move before releasing the ptlock. Where as with my patch, the
intention is to flush only at once in the end of move_page_tables. When I
tried to flush TLB on every PMD move, it was quite slow on my arm64 device [2].

Further observation [1] is, it seems like the move_huge_pmds and move_ptes code
is a bit sub optimal in the sense, we are acquiring and releasing the same
ptlock for a bunch of PMDs if the said PMDs are on the same page-table page
right? Instead we can do better by acquiring and release the ptlock less
often.

I think this observation [1] and the frequent TLB flush issue [2] can be solved
by acquiring the ptlock once for a bunch of PMDs, move them all, then flush
the tlb and then release the ptlock, and then proceed to doing the same thing
for the PMDs in the next page-table page. What do you think?

- Joel

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Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
Date: Wed, 24 Oct 2018 19:13:50 -0700
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On Wed, Oct 24, 2018 at 10:57:33PM +1100, Balbir Singh wrote:
[...]
> > > +		pmd_t pmd;
> > > +
> > > +		new_ptl = pmd_lockptr(mm, new_pmd);
> 
> 
> Looks like this is largely inspired by move_huge_pmd(), I guess a lot of
> the code applies, why not just reuse as much as possible? The same comments
> w.r.t mmap_sem helping protect against lock order issues applies as well.

I thought about this and when I looked into it, it seemed there are subtle
differences that make such sharing not worth it (or not possible).

 - Joel

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Subject: Re: [PATCH 1/4] treewide: remove unused address argument from
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On Wed, Oct 24, 2018 at 10:37:16AM +0200, Peter Zijlstra wrote:
> On Fri, Oct 12, 2018 at 06:31:57PM -0700, Joel Fernandes (Google) wrote:
> > This series speeds up mremap(2) syscall by copying page tables at the
> > PMD level even for non-THP systems. There is concern that the extra
> > 'address' argument that mremap passes to pte_alloc may do something
> > subtle architecture related in the future that may make the scheme not
> > work.  Also we find that there is no point in passing the 'address' to
> > pte_alloc since its unused. So this patch therefore removes this
> > argument tree-wide resulting in a nice negative diff as well. Also
> > ensuring along the way that the enabled architectures do not do anything
> > funky with 'address' argument that goes unnoticed by the optimization.
> 
> Did you happen to look at the history of where that address argument
> came from? -- just being curious here. ISTR something vague about
> architectures having different paging structure for different memory
> ranges.

I didn't happen to do that analysis but from code analysis, no architecutre
is using it. Since its unused in the kernel, may be such architectures don't
exist or were removed, so we don't need to bother? Could you share more about
your concern with the removal of this argument?

thanks,

 - Joel

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Subject: Re: [PATCH v2 0/2] arm64: Cut rebuild time when changing
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On Wed, Oct 24, 2018 at 02:55:17PM -0500, Rob Herring wrote:
> On Wed, Oct 24, 2018 at 2:33 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
> >
> > Hi all,
> >
> > While investigating why ARM64 required a ton of objects to be rebuilt
> > when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
> > because we define __early_init_dt_declare_initrd() differently and we do
> > that in arch/arm64/include/asm/memory.h which gets included by a fair
> > amount of other header files, and translation units as well.
> 
> I scratch my head sometimes as to why some config options rebuild so
> much stuff. One down, ? to go. :)
> 
> > Changing the value of CONFIG_DEV_BLK_INITRD is a common thing with build
> > systems that generate two kernels: one with the initramfs and one
> > without. buildroot is one of these build systems, OpenWrt is also
> > another one that does this.
> >
> > This patch series proposes adding an empty initrd.h to satisfy the need
> > for drivers/of/fdt.c to unconditionally include that file, and moves the
> > custom __early_init_dt_declare_initrd() definition away from
> > asm/memory.h
> >
> > This cuts the number of objects rebuilds from 1920 down to 26, so a
> > factor 73 approximately.
> >
> > Apologies for the long CC list, please let me know how you would go
> > about merging that and if another approach would be preferable, e.g:
> > introducing a CONFIG_ARCH_INITRD_BELOW_START_OK Kconfig option or
> > something like that.
> 
> There may be a better way as of 4.20 because bootmem is now gone and
> only memblock is used. This should unify what each arch needs to do
> with initrd early. We need the physical address early for memblock
> reserving. Then later on we need the virtual address to access the
> initrd. Perhaps we should just change initrd_start and initrd_end to
> physical addresses (or add 2 new variables would be less invasive and
> allow for different translation than __va()). The sanity checks and
> memblock reserve could also perhaps be moved to a common location.
>
> Alternatively, given arm64 is the only oddball, I'd be fine with an
> "if (IS_ENABLED(CONFIG_ARM64))" condition in the default
> __early_init_dt_declare_initrd as long as we have a path to removing
> it like the above option.

I think arm64 does not have to redefine __early_init_dt_declare_initrd().
Something like this might be just all we need (completely untested,
probably it won't even compile):

diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 9d9582c..e9ca238 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -62,6 +62,9 @@ s64 memstart_addr __ro_after_init = -1;
 phys_addr_t arm64_dma_phys_limit __ro_after_init;
 
 #ifdef CONFIG_BLK_DEV_INITRD
+
+static phys_addr_t initrd_start_phys, initrd_end_phys;
+
 static int __init early_initrd(char *p)
 {
 	unsigned long start, size;
@@ -71,8 +74,8 @@ static int __init early_initrd(char *p)
 	if (*endp == ',') {
 		size = memparse(endp + 1, NULL);
 
-		initrd_start = start;
-		initrd_end = start + size;
+		initrd_start_phys = start;
+		initrd_end_phys = end;
 	}
 	return 0;
 }
@@ -407,14 +410,27 @@ void __init arm64_memblock_init(void)
 		memblock_add(__pa_symbol(_text), (u64)(_end - _text));
 	}
 
-	if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && initrd_start) {
+	if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) &&
+	    (initrd_start || initrd_start_phys)) {
+		/*
+		 * FIXME: ensure proper precendence between
+		 * early_initrd and DT when both are present
+		 */
+		if (initrd_start) {
+			initrd_start_phys = __phys_to_virt(initrd_start);
+			initrd_end_phys = __phys_to_virt(initrd_end);
+		} else if (initrd_start_phys) {
+			initrd_start = __va(initrd_start_phys);
+			initrd_end = __va(initrd_start_phys);
+		}
+
 		/*
 		 * Add back the memory we just removed if it results in the
 		 * initrd to become inaccessible via the linear mapping.
 		 * Otherwise, this is a no-op
 		 */
-		u64 base = initrd_start & PAGE_MASK;
-		u64 size = PAGE_ALIGN(initrd_end) - base;
+		u64 base = initrd_start_phys & PAGE_MASK;
+		u64 size = PAGE_ALIGN(initrd_end_phys) - base;
 
 		/*
 		 * We can only add back the initrd memory if we don't end up
@@ -458,7 +474,7 @@ void __init arm64_memblock_init(void)
 	 * pagetables with memblock.
 	 */
 	memblock_reserve(__pa_symbol(_text), _end - _text);
-#ifdef CONFIG_BLK_DEV_INITRD
+#if 0
 	if (initrd_start) {
 		memblock_reserve(initrd_start, initrd_end - initrd_start);
 
 
> Rob
> 

-- 
Sincerely yours,
Mike.



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Subject: Re: [PATCH v2 0/2] arm64: Cut rebuild time when changing
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On Thu, Oct 25, 2018 at 10:38:34AM +0100, Mike Rapoport wrote:
> On Wed, Oct 24, 2018 at 02:55:17PM -0500, Rob Herring wrote:
> > On Wed, Oct 24, 2018 at 2:33 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
> > >
> > > Hi all,
> > >
> > > While investigating why ARM64 required a ton of objects to be rebuilt
> > > when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
> > > because we define __early_init_dt_declare_initrd() differently and we do
> > > that in arch/arm64/include/asm/memory.h which gets included by a fair
> > > amount of other header files, and translation units as well.
> > 
> > I scratch my head sometimes as to why some config options rebuild so
> > much stuff. One down, ? to go. :)
> > 
> > > Changing the value of CONFIG_DEV_BLK_INITRD is a common thing with build
> > > systems that generate two kernels: one with the initramfs and one
> > > without. buildroot is one of these build systems, OpenWrt is also
> > > another one that does this.
> > >
> > > This patch series proposes adding an empty initrd.h to satisfy the need
> > > for drivers/of/fdt.c to unconditionally include that file, and moves the
> > > custom __early_init_dt_declare_initrd() definition away from
> > > asm/memory.h
> > >
> > > This cuts the number of objects rebuilds from 1920 down to 26, so a
> > > factor 73 approximately.
> > >
> > > Apologies for the long CC list, please let me know how you would go
> > > about merging that and if another approach would be preferable, e.g:
> > > introducing a CONFIG_ARCH_INITRD_BELOW_START_OK Kconfig option or
> > > something like that.
> > 
> > There may be a better way as of 4.20 because bootmem is now gone and
> > only memblock is used. This should unify what each arch needs to do
> > with initrd early. We need the physical address early for memblock
> > reserving. Then later on we need the virtual address to access the
> > initrd. Perhaps we should just change initrd_start and initrd_end to
> > physical addresses (or add 2 new variables would be less invasive and
> > allow for different translation than __va()). The sanity checks and
> > memblock reserve could also perhaps be moved to a common location.
> >
> > Alternatively, given arm64 is the only oddball, I'd be fine with an
> > "if (IS_ENABLED(CONFIG_ARM64))" condition in the default
> > __early_init_dt_declare_initrd as long as we have a path to removing
> > it like the above option.
> 
> I think arm64 does not have to redefine __early_init_dt_declare_initrd().
> Something like this might be just all we need (completely untested,
> probably it won't even compile):

The alternative solution would be to replace initrd_start/initrd_end
with physical address versions of these everywhere - that's what
we're passed from DT, it's what 32-bit ARM would prefer, and seemingly
what 64-bit ARM would also like as well.

Grepping for initrd_start in arch/*/mm shows that there's lots of
architectures that have virtual/physical conversions on these, and
a number that have obviously been derived from 32-bit ARM's approach
(with maintaining a phys_initrd_start variable to simplify things).

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up
According to speedtest.net: 11.9Mbps down 500kbps up


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Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
Date: Thu, 25 Oct 2018 13:19:00 +0300
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References: <20181013013200.206928-1-joel@joelfernandes.org>
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To: Joel Fernandes <joel@joelfernandes.org>
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On Wed, Oct 24, 2018 at 07:09:07PM -0700, Joel Fernandes wrote:
> On Wed, Oct 24, 2018 at 03:57:24PM +0300, Kirill A. Shutemov wrote:
> > On Wed, Oct 24, 2018 at 10:57:33PM +1100, Balbir Singh wrote:
> > > On Wed, Oct 24, 2018 at 01:12:56PM +0300, Kirill A. Shutemov wrote:
> > > > On Fri, Oct 12, 2018 at 06:31:58PM -0700, Joel Fernandes (Google) wrote:
> > > > > diff --git a/mm/mremap.c b/mm/mremap.c
> > > > > index 9e68a02a52b1..2fd163cff406 100644
> > > > > --- a/mm/mremap.c
> > > > > +++ b/mm/mremap.c
> > > > > @@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
> > > > >  		drop_rmap_locks(vma);
> > > > >  }
> > > > >  
> > > > > +static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
> > > > > +		  unsigned long new_addr, unsigned long old_end,
> > > > > +		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
> > > > > +{
> > > > > +	spinlock_t *old_ptl, *new_ptl;
> > > > > +	struct mm_struct *mm = vma->vm_mm;
> > > > > +
> > > > > +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> > > > > +	    || old_end - old_addr < PMD_SIZE)
> > > > > +		return false;
> > > > > +
> > > > > +	/*
> > > > > +	 * The destination pmd shouldn't be established, free_pgtables()
> > > > > +	 * should have release it.
> > > > > +	 */
> > > > > +	if (WARN_ON(!pmd_none(*new_pmd)))
> > > > > +		return false;
> > > > > +
> > > > > +	/*
> > > > > +	 * We don't have to worry about the ordering of src and dst
> > > > > +	 * ptlocks because exclusive mmap_sem prevents deadlock.
> > > > > +	 */
> > > > > +	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
> > > > > +	if (old_ptl) {
> > > > 
> > > > How can it ever be false?
> 
> Kirill,
> It cannot, you are right. I'll remove the test.
> 
> By the way, there are new changes upstream by Linus which flush the TLB
> before releasing the ptlock instead of after. I'm guessing that patch came
> about because of reviews of this patch and someone spotted an issue in the
> existing code :)
> 
> Anyway the patch in concern is:
> eb66ae030829 ("mremap: properly flush TLB before releasing the page")
> 
> I need to rebase on top of that with appropriate modifications, but I worry
> that this patch will slow down performance since we have to flush at every
> PMD/PTE move before releasing the ptlock. Where as with my patch, the
> intention is to flush only at once in the end of move_page_tables. When I
> tried to flush TLB on every PMD move, it was quite slow on my arm64 device [2].
> 
> Further observation [1] is, it seems like the move_huge_pmds and move_ptes code
> is a bit sub optimal in the sense, we are acquiring and releasing the same
> ptlock for a bunch of PMDs if the said PMDs are on the same page-table page
> right? Instead we can do better by acquiring and release the ptlock less
> often.
> 
> I think this observation [1] and the frequent TLB flush issue [2] can be solved
> by acquiring the ptlock once for a bunch of PMDs, move them all, then flush
> the tlb and then release the ptlock, and then proceed to doing the same thing
> for the PMDs in the next page-table page. What do you think?

Yeah, that's viable optimization.

The tricky part is that one PMD page table can have PMD entires of
different types: THP, page table that you can move as whole and the one
that you cannot (for any reason).

If we cannot move the PMD entry as a whole and must go to PTE page table
we would need to drop PMD ptl and take PTE ptl (it might be the same lock
in some configuations).

Also we don't want to take PMD lock unless it's required.

I expect it to be not very trivial to get everything right. But take a
shot :)

-- 
 Kirill A. Shutemov

From - Thu Nov 08 21:42:21 2018
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From: "Kirill A. Shutemov" <kirill@shutemov.name>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 1/4] treewide: remove unused address argument from
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
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 Ingo Molna
To: Peter Zijlstra <peterz@infradead.org>
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On Wed, Oct 24, 2018 at 10:37:16AM +0200, Peter Zijlstra wrote:
> On Fri, Oct 12, 2018 at 06:31:57PM -0700, Joel Fernandes (Google) wrote:
> > This series speeds up mremap(2) syscall by copying page tables at the
> > PMD level even for non-THP systems. There is concern that the extra
> > 'address' argument that mremap passes to pte_alloc may do something
> > subtle architecture related in the future that may make the scheme not
> > work.  Also we find that there is no point in passing the 'address' to
> > pte_alloc since its unused. So this patch therefore removes this
> > argument tree-wide resulting in a nice negative diff as well. Also
> > ensuring along the way that the enabled architectures do not do anything
> > funky with 'address' argument that goes unnoticed by the optimization.
> 
> Did you happen to look at the history of where that address argument
> came from? -- just being curious here. ISTR something vague about
> architectures having different paging structure for different memory
> ranges.

I see some archicetures (i.e. sparc and, I believe power) used the address
for coloring. It's not needed anymore. Page allocator and SL?B are good
enough now.

See 3c936465249f ("[SPARC64]: Kill pgtable quicklists and use SLAB.")

-- 
 Kirill A. Shutemov

From - Thu Nov 08 21:42:21 2018
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Subject: Re: [PATCH v2 0/2] arm64: Cut rebuild time when changing CONFIG_BLK_DEV_INITRD
Date: Thu, 25 Oct 2018 08:15:15 -0500
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Cc: Florian Fainelli <f.fainelli@gmail.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
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To: rppt@linux.ibm.com, Ard Biesheuvel <ard.biesheuvel@linaro.org>
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+Ard

On Thu, Oct 25, 2018 at 4:38 AM Mike Rapoport <rppt@linux.ibm.com> wrote:
>
> On Wed, Oct 24, 2018 at 02:55:17PM -0500, Rob Herring wrote:
> > On Wed, Oct 24, 2018 at 2:33 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
> > >
> > > Hi all,
> > >
> > > While investigating why ARM64 required a ton of objects to be rebuilt
> > > when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
> > > because we define __early_init_dt_declare_initrd() differently and we do
> > > that in arch/arm64/include/asm/memory.h which gets included by a fair
> > > amount of other header files, and translation units as well.
> >
> > I scratch my head sometimes as to why some config options rebuild so
> > much stuff. One down, ? to go. :)
> >
> > > Changing the value of CONFIG_DEV_BLK_INITRD is a common thing with build
> > > systems that generate two kernels: one with the initramfs and one
> > > without. buildroot is one of these build systems, OpenWrt is also
> > > another one that does this.
> > >
> > > This patch series proposes adding an empty initrd.h to satisfy the need
> > > for drivers/of/fdt.c to unconditionally include that file, and moves the
> > > custom __early_init_dt_declare_initrd() definition away from
> > > asm/memory.h
> > >
> > > This cuts the number of objects rebuilds from 1920 down to 26, so a
> > > factor 73 approximately.
> > >
> > > Apologies for the long CC list, please let me know how you would go
> > > about merging that and if another approach would be preferable, e.g:
> > > introducing a CONFIG_ARCH_INITRD_BELOW_START_OK Kconfig option or
> > > something like that.
> >
> > There may be a better way as of 4.20 because bootmem is now gone and
> > only memblock is used. This should unify what each arch needs to do
> > with initrd early. We need the physical address early for memblock
> > reserving. Then later on we need the virtual address to access the
> > initrd. Perhaps we should just change initrd_start and initrd_end to
> > physical addresses (or add 2 new variables would be less invasive and
> > allow for different translation than __va()). The sanity checks and
> > memblock reserve could also perhaps be moved to a common location.
> >
> > Alternatively, given arm64 is the only oddball, I'd be fine with an
> > "if (IS_ENABLED(CONFIG_ARM64))" condition in the default
> > __early_init_dt_declare_initrd as long as we have a path to removing
> > it like the above option.
>
> I think arm64 does not have to redefine __early_init_dt_declare_initrd().
> Something like this might be just all we need (completely untested,
> probably it won't even compile):
>
> diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
> index 9d9582c..e9ca238 100644
> --- a/arch/arm64/mm/init.c
> +++ b/arch/arm64/mm/init.c
> @@ -62,6 +62,9 @@ s64 memstart_addr __ro_after_init = -1;
>  phys_addr_t arm64_dma_phys_limit __ro_after_init;
>
>  #ifdef CONFIG_BLK_DEV_INITRD
> +
> +static phys_addr_t initrd_start_phys, initrd_end_phys;
> +
>  static int __init early_initrd(char *p)
>  {
>         unsigned long start, size;
> @@ -71,8 +74,8 @@ static int __init early_initrd(char *p)
>         if (*endp == ',') {
>                 size = memparse(endp + 1, NULL);
>
> -               initrd_start = start;
> -               initrd_end = start + size;
> +               initrd_start_phys = start;
> +               initrd_end_phys = end;
>         }
>         return 0;
>  }
> @@ -407,14 +410,27 @@ void __init arm64_memblock_init(void)
>                 memblock_add(__pa_symbol(_text), (u64)(_end - _text));
>         }
>
> -       if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && initrd_start) {
> +       if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) &&
> +           (initrd_start || initrd_start_phys)) {
> +               /*
> +                * FIXME: ensure proper precendence between
> +                * early_initrd and DT when both are present

Command line takes precedence, so just reverse the order.

> +                */
> +               if (initrd_start) {
> +                       initrd_start_phys = __phys_to_virt(initrd_start);
> +                       initrd_end_phys = __phys_to_virt(initrd_end);

AIUI, the original issue was doing the P2V translation was happening
too early and the VA could be wrong if the linear range is adjusted.
So I don't think this would work.

I suppose you could convert the VA back to a PA before any adjustments
and then back to a VA again after. But that's kind of hacky. 2 wrongs
making a right.

> +               } else if (initrd_start_phys) {
> +                       initrd_start = __va(initrd_start_phys);
> +                       initrd_end = __va(initrd_start_phys);
> +               }
> +
>                 /*
>                  * Add back the memory we just removed if it results in the
>                  * initrd to become inaccessible via the linear mapping.
>                  * Otherwise, this is a no-op
>                  */
> -               u64 base = initrd_start & PAGE_MASK;
> -               u64 size = PAGE_ALIGN(initrd_end) - base;
> +               u64 base = initrd_start_phys & PAGE_MASK;
> +               u64 size = PAGE_ALIGN(initrd_end_phys) - base;
>
>                 /*
>                  * We can only add back the initrd memory if we don't end up
> @@ -458,7 +474,7 @@ void __init arm64_memblock_init(void)
>          * pagetables with memblock.
>          */
>         memblock_reserve(__pa_symbol(_text), _end - _text);
> -#ifdef CONFIG_BLK_DEV_INITRD
> +#if 0
>         if (initrd_start) {
>                 memblock_reserve(initrd_start, initrd_end - initrd_start);
>
>
> > Rob
> >
>
> --
> Sincerely yours,
> Mike.
>


From - Thu Nov 08 21:42:21 2018
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From: Mike Rapoport <rppt@linux.ibm.com>
Newsgroups: gmane.linux.ports.arm.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.drivers.devicetree,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.kernel.cross-arch,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH v2 0/2] arm64: Cut rebuild time when changing
 CONFIG_BLK_DEV_INITRD
Date: Thu, 25 Oct 2018 18:29:36 +0100
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Approved: news@gmane.org
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On Thu, Oct 25, 2018 at 08:15:15AM -0500, Rob Herring wrote:
> +Ard
> 
> On Thu, Oct 25, 2018 at 4:38 AM Mike Rapoport <rppt@linux.ibm.com> wrote:
> >
> > On Wed, Oct 24, 2018 at 02:55:17PM -0500, Rob Herring wrote:
> > > On Wed, Oct 24, 2018 at 2:33 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
> > > >
> > > > Hi all,
> > > >
> > > > While investigating why ARM64 required a ton of objects to be rebuilt
> > > > when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
> > > > because we define __early_init_dt_declare_initrd() differently and we do
> > > > that in arch/arm64/include/asm/memory.h which gets included by a fair
> > > > amount of other header files, and translation units as well.
> > >
> > > I scratch my head sometimes as to why some config options rebuild so
> > > much stuff. One down, ? to go. :)
> > >
> > > > Changing the value of CONFIG_DEV_BLK_INITRD is a common thing with build
> > > > systems that generate two kernels: one with the initramfs and one
> > > > without. buildroot is one of these build systems, OpenWrt is also
> > > > another one that does this.
> > > >
> > > > This patch series proposes adding an empty initrd.h to satisfy the need
> > > > for drivers/of/fdt.c to unconditionally include that file, and moves the
> > > > custom __early_init_dt_declare_initrd() definition away from
> > > > asm/memory.h
> > > >
> > > > This cuts the number of objects rebuilds from 1920 down to 26, so a
> > > > factor 73 approximately.
> > > >
> > > > Apologies for the long CC list, please let me know how you would go
> > > > about merging that and if another approach would be preferable, e.g:
> > > > introducing a CONFIG_ARCH_INITRD_BELOW_START_OK Kconfig option or
> > > > something like that.
> > >
> > > There may be a better way as of 4.20 because bootmem is now gone and
> > > only memblock is used. This should unify what each arch needs to do
> > > with initrd early. We need the physical address early for memblock
> > > reserving. Then later on we need the virtual address to access the
> > > initrd. Perhaps we should just change initrd_start and initrd_end to
> > > physical addresses (or add 2 new variables would be less invasive and
> > > allow for different translation than __va()). The sanity checks and
> > > memblock reserve could also perhaps be moved to a common location.
> > >
> > > Alternatively, given arm64 is the only oddball, I'd be fine with an
> > > "if (IS_ENABLED(CONFIG_ARM64))" condition in the default
> > > __early_init_dt_declare_initrd as long as we have a path to removing
> > > it like the above option.
> >
> > I think arm64 does not have to redefine __early_init_dt_declare_initrd().
> > Something like this might be just all we need (completely untested,
> > probably it won't even compile):
> >
> > diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
> > index 9d9582c..e9ca238 100644
> > --- a/arch/arm64/mm/init.c
> > +++ b/arch/arm64/mm/init.c
> > @@ -62,6 +62,9 @@ s64 memstart_addr __ro_after_init = -1;
> >  phys_addr_t arm64_dma_phys_limit __ro_after_init;
> >
> >  #ifdef CONFIG_BLK_DEV_INITRD
> > +
> > +static phys_addr_t initrd_start_phys, initrd_end_phys;
> > +
> >  static int __init early_initrd(char *p)
> >  {
> >         unsigned long start, size;
> > @@ -71,8 +74,8 @@ static int __init early_initrd(char *p)
> >         if (*endp == ',') {
> >                 size = memparse(endp + 1, NULL);
> >
> > -               initrd_start = start;
> > -               initrd_end = start + size;
> > +               initrd_start_phys = start;
> > +               initrd_end_phys = end;
> >         }
> >         return 0;
> >  }
> > @@ -407,14 +410,27 @@ void __init arm64_memblock_init(void)
> >                 memblock_add(__pa_symbol(_text), (u64)(_end - _text));
> >         }
> >
> > -       if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && initrd_start) {
> > +       if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) &&
> > +           (initrd_start || initrd_start_phys)) {
> > +               /*
> > +                * FIXME: ensure proper precendence between
> > +                * early_initrd and DT when both are present
> 
> Command line takes precedence, so just reverse the order.
> 
> > +                */
> > +               if (initrd_start) {
> > +                       initrd_start_phys = __phys_to_virt(initrd_start);
> > +                       initrd_end_phys = __phys_to_virt(initrd_end);
> 
> AIUI, the original issue was doing the P2V translation was happening
> too early and the VA could be wrong if the linear range is adjusted.
> So I don't think this would work.

Probably things have changed since then, but in the current code there is

		initrd_start = __phys_to_virt(initrd_start);

and in between only the code related to CONFIG_RANDOMIZE_BASE, so I believe
it's safe to use __phys_to_virt() here as well.
 
> I suppose you could convert the VA back to a PA before any adjustments
> and then back to a VA again after. But that's kind of hacky. 2 wrongs
> making a right.
> 
> > +               } else if (initrd_start_phys) {
> > +                       initrd_start = __va(initrd_start_phys);
> > +                       initrd_end = __va(initrd_start_phys);
> > +               }
> > +
> >                 /*
> >                  * Add back the memory we just removed if it results in the
> >                  * initrd to become inaccessible via the linear mapping.
> >                  * Otherwise, this is a no-op
> >                  */
> > -               u64 base = initrd_start & PAGE_MASK;
> > -               u64 size = PAGE_ALIGN(initrd_end) - base;
> > +               u64 base = initrd_start_phys & PAGE_MASK;
> > +               u64 size = PAGE_ALIGN(initrd_end_phys) - base;
> >
> >                 /*
> >                  * We can only add back the initrd memory if we don't end up
> > @@ -458,7 +474,7 @@ void __init arm64_memblock_init(void)
> >          * pagetables with memblock.
> >          */
> >         memblock_reserve(__pa_symbol(_text), _end - _text);
> > -#ifdef CONFIG_BLK_DEV_INITRD
> > +#if 0
> >         if (initrd_start) {
> >                 memblock_reserve(initrd_start, initrd_end - initrd_start);
> >
> >
> > > Rob
> > >
> >
> > --
> > Sincerely yours,
> > Mike.
> >
> 

-- 
Sincerely yours,
Mike.

From - Thu Nov 08 21:42:21 2018
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From: Rob Herring <robh@kernel.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.riscv,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.devicetree,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v2 0/2] arm64: Cut rebuild time when changing CONFIG_BLK_DEV_INITRD
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On Thu, Oct 25, 2018 at 12:30 PM Mike Rapoport <rppt@linux.ibm.com> wrote:
>
> On Thu, Oct 25, 2018 at 08:15:15AM -0500, Rob Herring wrote:
> > +Ard
> >
> > On Thu, Oct 25, 2018 at 4:38 AM Mike Rapoport <rppt@linux.ibm.com> wrote:
> > >
> > > On Wed, Oct 24, 2018 at 02:55:17PM -0500, Rob Herring wrote:
> > > > On Wed, Oct 24, 2018 at 2:33 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
> > > > >
> > > > > Hi all,
> > > > >
> > > > > While investigating why ARM64 required a ton of objects to be rebuilt
> > > > > when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
> > > > > because we define __early_init_dt_declare_initrd() differently and we do
> > > > > that in arch/arm64/include/asm/memory.h which gets included by a fair
> > > > > amount of other header files, and translation units as well.
> > > >
> > > > I scratch my head sometimes as to why some config options rebuild so
> > > > much stuff. One down, ? to go. :)
> > > >
> > > > > Changing the value of CONFIG_DEV_BLK_INITRD is a common thing with build
> > > > > systems that generate two kernels: one with the initramfs and one
> > > > > without. buildroot is one of these build systems, OpenWrt is also
> > > > > another one that does this.
> > > > >
> > > > > This patch series proposes adding an empty initrd.h to satisfy the need
> > > > > for drivers/of/fdt.c to unconditionally include that file, and moves the
> > > > > custom __early_init_dt_declare_initrd() definition away from
> > > > > asm/memory.h
> > > > >
> > > > > This cuts the number of objects rebuilds from 1920 down to 26, so a
> > > > > factor 73 approximately.
> > > > >
> > > > > Apologies for the long CC list, please let me know how you would go
> > > > > about merging that and if another approach would be preferable, e.g:
> > > > > introducing a CONFIG_ARCH_INITRD_BELOW_START_OK Kconfig option or
> > > > > something like that.
> > > >
> > > > There may be a better way as of 4.20 because bootmem is now gone and
> > > > only memblock is used. This should unify what each arch needs to do
> > > > with initrd early. We need the physical address early for memblock
> > > > reserving. Then later on we need the virtual address to access the
> > > > initrd. Perhaps we should just change initrd_start and initrd_end to
> > > > physical addresses (or add 2 new variables would be less invasive and
> > > > allow for different translation than __va()). The sanity checks and
> > > > memblock reserve could also perhaps be moved to a common location.
> > > >
> > > > Alternatively, given arm64 is the only oddball, I'd be fine with an
> > > > "if (IS_ENABLED(CONFIG_ARM64))" condition in the default
> > > > __early_init_dt_declare_initrd as long as we have a path to removing
> > > > it like the above option.
> > >
> > > I think arm64 does not have to redefine __early_init_dt_declare_initrd().
> > > Something like this might be just all we need (completely untested,
> > > probably it won't even compile):
> > >
> > > diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
> > > index 9d9582c..e9ca238 100644
> > > --- a/arch/arm64/mm/init.c
> > > +++ b/arch/arm64/mm/init.c
> > > @@ -62,6 +62,9 @@ s64 memstart_addr __ro_after_init = -1;
> > >  phys_addr_t arm64_dma_phys_limit __ro_after_init;
> > >
> > >  #ifdef CONFIG_BLK_DEV_INITRD
> > > +
> > > +static phys_addr_t initrd_start_phys, initrd_end_phys;
> > > +
> > >  static int __init early_initrd(char *p)
> > >  {
> > >         unsigned long start, size;
> > > @@ -71,8 +74,8 @@ static int __init early_initrd(char *p)
> > >         if (*endp == ',') {
> > >                 size = memparse(endp + 1, NULL);
> > >
> > > -               initrd_start = start;
> > > -               initrd_end = start + size;
> > > +               initrd_start_phys = start;
> > > +               initrd_end_phys = end;
> > >         }
> > >         return 0;
> > >  }
> > > @@ -407,14 +410,27 @@ void __init arm64_memblock_init(void)
> > >                 memblock_add(__pa_symbol(_text), (u64)(_end - _text));
> > >         }
> > >
> > > -       if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && initrd_start) {
> > > +       if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) &&
> > > +           (initrd_start || initrd_start_phys)) {
> > > +               /*
> > > +                * FIXME: ensure proper precendence between
> > > +                * early_initrd and DT when both are present
> >
> > Command line takes precedence, so just reverse the order.
> >
> > > +                */
> > > +               if (initrd_start) {
> > > +                       initrd_start_phys = __phys_to_virt(initrd_start);
> > > +                       initrd_end_phys = __phys_to_virt(initrd_end);

BTW, I think you meant virt_to_phys() here?

> >
> > AIUI, the original issue was doing the P2V translation was happening
> > too early and the VA could be wrong if the linear range is adjusted.
> > So I don't think this would work.
>
> Probably things have changed since then, but in the current code there is
>
>                 initrd_start = __phys_to_virt(initrd_start);
>
> and in between only the code related to CONFIG_RANDOMIZE_BASE, so I believe
> it's safe to use __phys_to_virt() here as well.

Here is fine yes, but I believe it was the the phys to virt in the DT
code before adjusting the linear range that was the problem.

Rob


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Subject: Re: [PATCH v2 0/2] arm64: Cut rebuild time when changing
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On 10/25/18 2:13 PM, Rob Herring wrote:
> On Thu, Oct 25, 2018 at 12:30 PM Mike Rapoport <rppt@linux.ibm.com> wrote:
>>
>> On Thu, Oct 25, 2018 at 08:15:15AM -0500, Rob Herring wrote:
>>> +Ard
>>>
>>> On Thu, Oct 25, 2018 at 4:38 AM Mike Rapoport <rppt@linux.ibm.com> wrote:
>>>>
>>>> On Wed, Oct 24, 2018 at 02:55:17PM -0500, Rob Herring wrote:
>>>>> On Wed, Oct 24, 2018 at 2:33 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
>>>>>>
>>>>>> Hi all,
>>>>>>
>>>>>> While investigating why ARM64 required a ton of objects to be rebuilt
>>>>>> when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
>>>>>> because we define __early_init_dt_declare_initrd() differently and we do
>>>>>> that in arch/arm64/include/asm/memory.h which gets included by a fair
>>>>>> amount of other header files, and translation units as well.
>>>>>
>>>>> I scratch my head sometimes as to why some config options rebuild so
>>>>> much stuff. One down, ? to go. :)
>>>>>
>>>>>> Changing the value of CONFIG_DEV_BLK_INITRD is a common thing with build
>>>>>> systems that generate two kernels: one with the initramfs and one
>>>>>> without. buildroot is one of these build systems, OpenWrt is also
>>>>>> another one that does this.
>>>>>>
>>>>>> This patch series proposes adding an empty initrd.h to satisfy the need
>>>>>> for drivers/of/fdt.c to unconditionally include that file, and moves the
>>>>>> custom __early_init_dt_declare_initrd() definition away from
>>>>>> asm/memory.h
>>>>>>
>>>>>> This cuts the number of objects rebuilds from 1920 down to 26, so a
>>>>>> factor 73 approximately.
>>>>>>
>>>>>> Apologies for the long CC list, please let me know how you would go
>>>>>> about merging that and if another approach would be preferable, e.g:
>>>>>> introducing a CONFIG_ARCH_INITRD_BELOW_START_OK Kconfig option or
>>>>>> something like that.
>>>>>
>>>>> There may be a better way as of 4.20 because bootmem is now gone and
>>>>> only memblock is used. This should unify what each arch needs to do
>>>>> with initrd early. We need the physical address early for memblock
>>>>> reserving. Then later on we need the virtual address to access the
>>>>> initrd. Perhaps we should just change initrd_start and initrd_end to
>>>>> physical addresses (or add 2 new variables would be less invasive and
>>>>> allow for different translation than __va()). The sanity checks and
>>>>> memblock reserve could also perhaps be moved to a common location.
>>>>>
>>>>> Alternatively, given arm64 is the only oddball, I'd be fine with an
>>>>> "if (IS_ENABLED(CONFIG_ARM64))" condition in the default
>>>>> __early_init_dt_declare_initrd as long as we have a path to removing
>>>>> it like the above option.
>>>>
>>>> I think arm64 does not have to redefine __early_init_dt_declare_initrd().
>>>> Something like this might be just all we need (completely untested,
>>>> probably it won't even compile):
>>>>
>>>> diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
>>>> index 9d9582c..e9ca238 100644
>>>> --- a/arch/arm64/mm/init.c
>>>> +++ b/arch/arm64/mm/init.c
>>>> @@ -62,6 +62,9 @@ s64 memstart_addr __ro_after_init = -1;
>>>>  phys_addr_t arm64_dma_phys_limit __ro_after_init;
>>>>
>>>>  #ifdef CONFIG_BLK_DEV_INITRD
>>>> +
>>>> +static phys_addr_t initrd_start_phys, initrd_end_phys;
>>>> +
>>>>  static int __init early_initrd(char *p)
>>>>  {
>>>>         unsigned long start, size;
>>>> @@ -71,8 +74,8 @@ static int __init early_initrd(char *p)
>>>>         if (*endp == ',') {
>>>>                 size = memparse(endp + 1, NULL);
>>>>
>>>> -               initrd_start = start;
>>>> -               initrd_end = start + size;
>>>> +               initrd_start_phys = start;
>>>> +               initrd_end_phys = end;
>>>>         }
>>>>         return 0;
>>>>  }
>>>> @@ -407,14 +410,27 @@ void __init arm64_memblock_init(void)
>>>>                 memblock_add(__pa_symbol(_text), (u64)(_end - _text));
>>>>         }
>>>>
>>>> -       if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && initrd_start) {
>>>> +       if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) &&
>>>> +           (initrd_start || initrd_start_phys)) {
>>>> +               /*
>>>> +                * FIXME: ensure proper precendence between
>>>> +                * early_initrd and DT when both are present
>>>
>>> Command line takes precedence, so just reverse the order.
>>>
>>>> +                */
>>>> +               if (initrd_start) {
>>>> +                       initrd_start_phys = __phys_to_virt(initrd_start);
>>>> +                       initrd_end_phys = __phys_to_virt(initrd_end);
> 
> BTW, I think you meant virt_to_phys() here?
> 
>>>
>>> AIUI, the original issue was doing the P2V translation was happening
>>> too early and the VA could be wrong if the linear range is adjusted.
>>> So I don't think this would work.
>>
>> Probably things have changed since then, but in the current code there is
>>
>>                 initrd_start = __phys_to_virt(initrd_start);
>>
>> and in between only the code related to CONFIG_RANDOMIZE_BASE, so I believe
>> it's safe to use __phys_to_virt() here as well.
> 
> Here is fine yes, but I believe it was the the phys to virt in the DT
> code before adjusting the linear range that was the problem.

FWIW, I am extracting the ARM implementation that parses the initrd
early command line parameter and the "setup" code doing the page
boundary alignment and memblock checking into a helper into lib/ that
other architectures can re-use. So far, this removes the need for
unicore32, arc and arm to duplicate essentially the same logic.
-- 
Florian


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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
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To: linux-parisc@vger.kernel.org,
        "James E . J . Bottomley" <jejb@parisc-linux.org>,
        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
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        Philippe Ombredanne <pombredanne@nexb.com>,
        Kate Stewart <kstewart@linuxfoundation.org>
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2908461>

The purpose of this patch series is, we can easily add/modify/delete
system call table support by changing entry in syscall.tbl file 
instead of manually changing many files. The other goal is to unify 
the system call table generation support implementation across all 
the architectures. 

The system call tables are in different format in all architecture. 
It will be difficult to manually add, modify or delete the system 
calls in the respective files manually. To make it easy by keeping
a script and which'll generate uapi header file and syscall table 
file.

syscall.tbl contains the list of available system calls along with 
system call number and corresponding entry point. Add a new system 
call in this architecture will be possible by adding new entry in 
the syscall.tbl file.

Adding a new table entry consisting of:
        - System call number.
        - ABI.
        - System call name.
        - Entry point name.
	- Compat entry name, if required.

ARM, s390 and x86 architecuture does exist the similar support. I 
leverage their implementation to come up with a generic solution.

I have done the same support for work for alpha, ia64, m68k, micro-
blaze, mips, powerpc, sh, sparc, and xtensa. Below mentioned git
repository contains more details.
Git repo:- https://github.com/frzkhn/system_call_table_generator/

Finally, this is the ground work to solve the Y2038 issue. We need 
to add two dozen of system calls to solve Y2038 issue. So this patch
series will help to add new system calls easily by adding new entry 
in the syscall.tbl.

Firoz Khan (5):
  parisc: move __IGNORE* entries to non uapi header
  parisc: add __NR_syscalls along with __NR_Linux_syscalls
  parisc: add system call table generation support
  parisc: generate uapi header and system call table files
  parisc: syscalls: ignore nfsservctl for other architectures

 arch/parisc/Makefile                      |   4 +
 arch/parisc/include/asm/Kbuild            |   3 +
 arch/parisc/include/asm/unistd.h          |   8 +
 arch/parisc/include/uapi/asm/Kbuild       |   2 +
 arch/parisc/include/uapi/asm/unistd.h     | 382 +------------------------
 arch/parisc/kernel/syscall.S              |  11 +-
 arch/parisc/kernel/syscall_table.S        | 459 ------------------------------
 arch/parisc/kernel/syscalls/Makefile      |  57 ++++
 arch/parisc/kernel/syscalls/syscall.tbl   | 369 ++++++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscallhdr.sh |  36 +++
 arch/parisc/kernel/syscalls/syscalltbl.sh |  36 +++
 scripts/checksyscalls.sh                  |   1 +
 12 files changed, 532 insertions(+), 836 deletions(-)
 delete mode 100644 arch/parisc/kernel/syscall_table.S
 create mode 100644 arch/parisc/kernel/syscalls/Makefile
 create mode 100644 arch/parisc/kernel/syscalls/syscall.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
 create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh

-- 
1.9.1



From - Thu Nov 08 21:42:22 2018
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X-Mozilla-Keys:                                                                                 
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v6 1/5] parisc: move __IGNORE* entries to non uapi header
Date: Fri, 26 Oct 2018 10:43:07 +0530
Lines: 57
Approved: news@gmane.org
Message-ID: <1540530791-3961-2-git-send-email-firoz.khan@linaro.org>
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        linux-arch@vger.kernel.org, arnd@arndb.de, deepa.kernel@gmail.com,
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To: linux-parisc@vger.kernel.org,
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        Helge Deller <deller@gmx.de>,
        Thomas Gleixner <tglx@linutronix.de>,
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        Kate Stewart <kstewart@linuxfoundation.org>
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All the __IGNORE* entries are resides in the uapi header
file move to non uapi header asm/unistd.h as it is not
used by any user space applications.

It is correct to keep __IGNORE* entry in non uapi header
asm/unistd.h while uapi/asm/unistd.h must hold information
only useful for user space applications.

One of the patch in this patch series will generate uapi
header file. The information which directly used by the
user space application must be present in uapi file.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/include/asm/unistd.h      | 6 ++++++
 arch/parisc/include/uapi/asm/unistd.h | 7 -------
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 3d507d0..93fd9f6 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -8,6 +8,12 @@
 
 #define SYS_ify(syscall_name)   __NR_##syscall_name
 
+#define __IGNORE_select                /* newselect */
+#define __IGNORE_fadvise64             /* fadvise64_64 */
+#define __IGNORE_pkey_mprotect
+#define __IGNORE_pkey_alloc
+#define __IGNORE_pkey_free
+
 #ifndef ASM_LINE_SEP
 # define ASM_LINE_SEP ;
 #endif
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index dc77c5a..bb52e12 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -368,13 +368,6 @@
 
 #define __NR_Linux_syscalls	(__NR_io_pgetevents + 1)
 
-
-#define __IGNORE_select		/* newselect */
-#define __IGNORE_fadvise64	/* fadvise64_64 */
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
-
 #define LINUX_GATEWAY_ADDR      0x100
 
 #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */
-- 
1.9.1



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Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v6 2/5] parisc: add __NR_syscalls along with __NR_Linux_syscalls
Date: Fri, 26 Oct 2018 10:43:08 +0530
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__NR_Linux_syscalls macro holds the number of system call
exist in parisc architecture. We have to change the value
of __NR_Linux_syscalls, if we add or delete a system call.

One of the patch in this patch series has a script which
will generate a uapi header based on syscall.tbl file.
The syscall.tbl file contains the total number of system
calls information. So we have two option to update __NR-
_Linux_syscalls value.

1. Update __NR_Linux_syscalls in asm/unistd.h manually by
   counting the no.of system calls. No need to update __NR-
   _Linux_syscalls until we either add a new system call or
   delete existing system call.

2. We can keep this feature it above mentioned script,
   that will count the number of syscalls and keep it in
   a generated file. In this case we don't need to expli-
   citly update __NR_Linux_syscalls in asm/unistd.h file.

The 2nd option will be the recommended one. For that, I
added the __NR_syscalls macro in uapi/asm/unistd.h along
with __NR_Linux_syscalls asm/unistd.h. The macro __NR_sys-
calls also added for making the name convention same across
all architecture. While __NR_syscalls isn't strictly part
of the uapi, having it as part of the generated header to
simplifies the implementation. We also need to enclose
this macro with #ifdef __KERNEL__ to avoid side effects.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/include/asm/unistd.h      | 2 ++
 arch/parisc/include/uapi/asm/unistd.h | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 93fd9f6..d30fdbcb 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -4,6 +4,8 @@
 
 #include <uapi/asm/unistd.h>
 
+#define __NR_Linux_syscalls     __NR_syscalls
+
 #ifndef __ASSEMBLY__
 
 #define SYS_ify(syscall_name)   __NR_##syscall_name
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index bb52e12..f10d065 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -366,7 +366,9 @@
 #define __NR_statx		(__NR_Linux + 349)
 #define __NR_io_pgetevents	(__NR_Linux + 350)
 
-#define __NR_Linux_syscalls	(__NR_io_pgetevents + 1)
+#ifdef __KERNEL__
+#define __NR_syscalls           351
+#endif
 
 #define LINUX_GATEWAY_ADDR      0x100
 
-- 
1.9.1



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The system call tables are in different format in all
architecture and it will be difficult to manually add,
modify or delete the syscall table entries in the res-
pective files. To make it easy by keeping a script and
which will generate the uapi header and syscall table
file. This change will also help to unify the implemen-
tation across all architectures.

The system call table generation script is added in
kernel/syscalls directory which contain the scripts to
generate both uapi header file and system call table
files. The syscall.tbl will be input for the scripts.

syscall.tbl contains the list of available system calls
along with system call number and corresponding entry
point. Add a new system call in this architecture will
be possible by adding new entry in the syscall.tbl file.

Adding a new table entry consisting of:
  	- System call number.
	- ABI.
	- System call name.
	- Entry point name.
	- Compat entry name, if required.

syscallhdr.sh and syscalltbl.sh will generate uapi header
unistd_32/64.h and syscall_table_32/64/c32.h files respect-
ively. Both .sh files will parse the content syscall.tbl
to generate the header and table files. unistd_32/64.h will
be included by uapi/asm/unistd.h and syscall_table_32/64/-
c32.h is included by kernel/syscall.S - the real system
call table.

ARM, s390 and x86 architecuture does have similar support.
I leverage their implementation to come up with a generic
solution.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/kernel/syscalls/Makefile      |  57 +++++
 arch/parisc/kernel/syscalls/syscall.tbl   | 369 ++++++++++++++++++++++++++++++
 arch/parisc/kernel/syscalls/syscallhdr.sh |  36 +++
 arch/parisc/kernel/syscalls/syscalltbl.sh |  36 +++
 4 files changed, 498 insertions(+)
 create mode 100644 arch/parisc/kernel/syscalls/Makefile
 create mode 100644 arch/parisc/kernel/syscalls/syscall.tbl
 create mode 100644 arch/parisc/kernel/syscalls/syscallhdr.sh
 create mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh

diff --git a/arch/parisc/kernel/syscalls/Makefile b/arch/parisc/kernel/syscalls/Makefile
new file mode 100644
index 0000000..0e26cae
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/Makefile
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0
+kapi := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
+
+_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') 	\
+	  $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
+
+syscall := $(srctree)/$(src)/syscall.tbl
+syshdr := $(srctree)/$(src)/syscallhdr.sh
+systbl := $(srctree)/$(src)/syscalltbl.sh
+
+quiet_cmd_syshdr = SYSHDR  $@
+      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'  	\
+		   '$(syshdr_abis_$(basetarget))'         	\
+		   '$(syshdr_pfx_$(basetarget))'          	\
+		   '$(syshdr_offset_$(basetarget))'
+
+quiet_cmd_systbl = SYSTBL  $@
+      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'  	\
+		   '$(systbl_abis_$(basetarget))'         	\
+		   '$(systbl_abi_$(basetarget))'          	\
+		   '$(systbl_offset_$(basetarget))'
+
+syshdr_abis_unistd_32 := common,32
+syshdr_offset_unistd_32 := __NR_Linux
+$(uapi)/unistd_32.h: $(syscall) $(syshdr)
+	$(call if_changed,syshdr)
+
+syshdr_abis_unistd_64 := common,64
+syshdr_offset_unistd_64 := __NR_Linux
+$(uapi)/unistd_64.h: $(syscall) $(syshdr)
+	$(call if_changed,syshdr)
+
+systbl_abis_syscall_table_32 := common,32
+$(kapi)/syscall_table_32.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+systbl_abis_syscall_table_64 := common,64
+$(kapi)/syscall_table_64.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+systbl_abis_syscall_table_c32 := common,32
+systbl_abi_syscall_table_c32 := c32
+$(kapi)/syscall_table_c32.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+uapisyshdr-y		+= unistd_32.h unistd_64.h
+kapisyshdr-y		+= syscall_table_32.h     	\
+			   syscall_table_64.h     	\
+			   syscall_table_c32.h
+
+targets	+= $(uapisyshdr-y) $(kapisyshdr-y)
+
+PHONY += all
+all: $(addprefix $(uapi)/,$(uapisyshdr-y))
+all: $(addprefix $(kapi)/,$(kapisyshdr-y))
+	@:
diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
new file mode 100644
index 0000000..9bbd2f9
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -0,0 +1,369 @@
+# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
+#
+# system call numbers and entry vectors for parisc
+#
+# The format is:
+# <number> <abi> <name> <entry point> <compat entry point>
+#
+# The <abi> can be common, 64, or 32 for this file.
+#
+0	common	restart_syscall		sys_restart_syscall
+1	common	exit			sys_exit
+2	common	fork			sys_fork_wrapper
+3	common	read			sys_read
+4	common	write			sys_write
+5	common	open			sys_open			compat_sys_open
+6	common	close			sys_close
+7	common	waitpid			sys_waitpid
+8	common	creat			sys_creat
+9	common	link			sys_link
+10	common	unlink			sys_unlink
+11	common	execve			sys_execve			compat_sys_execve
+12	common	chdir			sys_chdir
+13	common	time			sys_time			compat_sys_time
+14	common	mknod			sys_mknod
+15	common	chmod			sys_chmod
+16	common	lchown			sys_lchown
+17	common	socket			sys_socket
+18	common	stat			sys_newstat			compat_sys_newstat
+19	common	lseek			sys_lseek			compat_sys_lseek
+20	common	getpid			sys_getpid
+21	common	mount			sys_mount			compat_sys_mount
+22	common	bind			sys_bind
+23	common	setuid			sys_setuid
+24	common	getuid			sys_getuid
+25	common	stime			sys_stime			compat_sys_stime
+26	common	ptrace			sys_ptrace			compat_sys_ptrace
+27	common	alarm			sys_alarm
+28	common	fstat			sys_newfstat			compat_sys_newfstat
+29	common	pause			sys_pause
+30	common	utime			sys_utime			compat_sys_utime
+31	common	connect			sys_connect
+32	common	listen			sys_listen
+33	common	access			sys_access
+34	common	nice			sys_nice
+35	common	accept			sys_accept
+36	common	sync			sys_sync
+37	common	kill			sys_kill
+38	common	rename			sys_rename
+39	common	mkdir			sys_mkdir
+40	common	rmdir			sys_rmdir
+41	common	dup			sys_dup
+42	common	pipe			sys_pipe
+43	common	times			sys_times			compat_sys_times
+44	common	getsockname		sys_getsockname
+45	common	brk			sys_brk
+46	common	setgid			sys_setgid
+47	common	getgid			sys_getgid
+48	common	signal			sys_signal
+49	common	geteuid			sys_geteuid
+50	common	getegid			sys_getegid
+51	common	acct			sys_acct
+52	common	umount2			sys_umount
+53	common	getpeername		sys_getpeername
+54	common	ioctl			sys_ioctl			compat_sys_ioctl
+55	common	fcntl			sys_fcntl			compat_sys_fcntl
+56	common	socketpair		sys_socketpair
+57	common	setpgid			sys_setpgid
+58	common	send			sys_send
+59	common	uname			sys_newuname
+60	common	umask			sys_umask
+61	common	chroot			sys_chroot
+62	common	ustat			sys_ustat			compat_sys_ustat
+63	common	dup2			sys_dup2
+64	common	getppid			sys_getppid
+65	common	getpgrp			sys_getpgrp
+66	common	setsid			sys_setsid
+67	common	pivot_root		sys_pivot_root
+68	common	sgetmask		sys_sgetmask			sys32_unimplemented
+69	common	ssetmask		sys_ssetmask			sys32_unimplemented
+70	common	setreuid		sys_setreuid
+71	common	setregid		sys_setregid
+72	common	mincore			sys_mincore
+73	common	sigpending		sys_sigpending			compat_sys_sigpending
+74	common	sethostname		sys_sethostname
+75	common	setrlimit		sys_setrlimit			compat_sys_setrlimit
+76	common	getrlimit		sys_getrlimit			compat_sys_getrlimit
+77	common	getrusage		sys_getrusage			compat_sys_getrusage
+78	common	gettimeofday		sys_gettimeofday		compat_sys_gettimeofday
+79	common	settimeofday		sys_settimeofday		compat_sys_settimeofday
+80	common	getgroups		sys_getgroups
+81	common	setgroups		sys_setgroups
+82	common	sendto			sys_sendto
+83	common	symlink			sys_symlink
+84	common	lstat			sys_newlstat			compat_sys_newlstat
+85	common	readlink		sys_readlink
+86	common	uselib			sys_ni_syscall
+87	common	swapon			sys_swapon
+88	common	reboot			sys_reboot
+89	common	mmap2			sys_mmap2
+90	common	mmap			sys_mmap
+91	common	munmap			sys_munmap
+92	common	truncate		sys_truncate			compat_sys_truncate
+93	common	ftruncate		sys_ftruncate			compat_sys_ftruncate
+94	common	fchmod			sys_fchmod
+95	common	fchown			sys_fchown
+96	common	getpriority		sys_getpriority
+97	common	setpriority		sys_setpriority
+98	common	recv			sys_recv
+99	common	statfs			sys_statfs			compat_sys_statfs
+100	common	fstatfs			sys_fstatfs			compat_sys_fstatfs
+101	common	stat64			sys_stat64
+# 102 was socketcall
+103	common	syslog			sys_syslog
+104	common	setitimer		sys_setitimer			compat_sys_setitimer
+105	common	getitimer		sys_getitimer			compat_sys_getitimer
+106	common	capget			sys_capget
+107	common	capset			sys_capset
+108	32	pread64			parisc_pread64
+108	64	pread64			sys_pread64
+109	32	pwrite64		parisc_pwrite64
+109	64	pwrite64		sys_pwrite64
+110	common	getcwd			sys_getcwd
+111	common	vhangup			sys_vhangup
+112	common	fstat64			sys_fstat64
+113	common	vfork			sys_vfork_wrapper
+114	common	wait4			sys_wait4			compat_sys_wait4
+115	common	swapoff			sys_swapoff
+116	common	sysinfo			sys_sysinfo			compat_sys_sysinfo
+117	common	shutdown		sys_shutdown
+118	common	fsync			sys_fsync
+119	common	madvise			sys_madvise
+120	common	clone			sys_clone_wrapper
+121	common	setdomainname		sys_setdomainname
+122	common	sendfile		sys_sendfile			compat_sys_sendfile
+123	common	recvfrom		sys_recvfrom
+124	common	adjtimex		sys_adjtimex			compat_sys_adjtimex
+125	common	mprotect		sys_mprotect
+126	common	sigprocmask		sys_sigprocmask			compat_sys_sigprocmask
+# 127 was create_module
+128	common	init_module		sys_init_module
+129	common	delete_module		sys_delete_module
+# 130 was get_kernel_syms
+131	common	quotactl		sys_quotactl
+132	common	getpgid			sys_getpgid
+133	common	fchdir			sys_fchdir
+134	common	bdflush			sys_bdflush
+135	common	sysfs			sys_sysfs
+136	32	personality		parisc_personality
+136	64	personality		sys_personality
+# 137 was afs_syscall
+138	common	setfsuid		sys_setfsuid
+139	common	setfsgid		sys_setfsgid
+140	common	_llseek			sys_llseek
+141	common	getdents		sys_getdents			compat_sys_getdents
+142	common	_newselect		sys_select			compat_sys_select
+143	common	flock			sys_flock
+144	common	msync			sys_msync
+145	common	readv			sys_readv			compat_sys_readv
+146	common	writev			sys_writev			compat_sys_writev
+147	common	getsid			sys_getsid
+148	common	fdatasync		sys_fdatasync
+149	common	_sysctl			sys_sysctl			compat_sys_sysctl
+150	common	mlock			sys_mlock
+151	common	munlock			sys_munlock
+152	common	mlockall		sys_mlockall
+153	common	munlockall		sys_munlockall
+154	common	sched_setparam		sys_sched_setparam
+155	common	sched_getparam		sys_sched_getparam
+156	common	sched_setscheduler	sys_sched_setscheduler
+157	common	sched_getscheduler	sys_sched_getscheduler
+158	common	sched_yield		sys_sched_yield
+159	common	sched_get_priority_max	sys_sched_get_priority_max
+160	common	sched_get_priority_min	sys_sched_get_priority_min
+161	common	sched_rr_get_interval	sys_sched_rr_get_interval	compat_sys_sched_rr_get_interval
+162	common	nanosleep		sys_nanosleep			compat_sys_nanosleep
+163	common	mremap			sys_mremap
+164	common	setresuid		sys_setresuid
+165	common	getresuid		sys_getresuid
+166	common	sigaltstack		sys_sigaltstack			compat_sys_sigaltstack
+# 167 was query_module
+168	common	poll			sys_poll
+# 169 was nfsservctl
+170	common	setresgid		sys_setresgid
+171	common	getresgid		sys_getresgid
+172	common	prctl			sys_prctl
+173	common	rt_sigreturn		sys_rt_sigreturn_wrapper
+174	common	rt_sigaction		sys_rt_sigaction		compat_sys_rt_sigaction
+175	common	rt_sigprocmask		sys_rt_sigprocmask		compat_sys_rt_sigprocmask
+176	common	rt_sigpending		sys_rt_sigpending		compat_sys_rt_sigpending
+177	common	rt_sigtimedwait		sys_rt_sigtimedwait		compat_sys_rt_sigtimedwait
+178	common	rt_sigqueueinfo		sys_rt_sigqueueinfo		compat_sys_rt_sigqueueinfo
+179	common	rt_sigsuspend		sys_rt_sigsuspend		compat_sys_rt_sigsuspend
+180	common	chown			sys_chown
+181	common	setsockopt		sys_setsockopt			compat_sys_setsockopt
+182	common	getsockopt		sys_getsockopt			compat_sys_getsockopt
+183	common	sendmsg			sys_sendmsg			compat_sys_sendmsg
+184	common	recvmsg			sys_recvmsg			compat_sys_recvmsg
+185	common	semop			sys_semop
+186	common	semget			sys_semget
+187	common	semctl			sys_semctl			compat_sys_semctl
+188	common	msgsnd			sys_msgsnd			compat_sys_msgsnd
+189	common	msgrcv			sys_msgrcv			compat_sys_msgrcv
+190	common	msgget			sys_msgget
+191	common	msgctl			sys_msgctl			compat_sys_msgctl
+192	common	shmat			sys_shmat			compat_sys_shmat
+193	common	shmdt			sys_shmdt
+194	common	shmget			sys_shmget
+195	common	shmctl			sys_shmctl			compat_sys_shmctl
+# 196 was getpmsg
+# 197 was putpmsg
+198	common	lstat64			sys_lstat64
+199	32	truncate64		parisc_truncate64
+199	64	truncate64		sys_truncate64
+200	32	ftruncate64		parisc_ftruncate64
+200	64	ftruncate64		sys_ftruncate64
+201	common	getdents64		sys_getdents64
+202	common	fcntl64			sys_fcntl64			compat_sys_fcntl64
+# 203 was attrctl
+# 204 was acl_get
+# 205 was acl_set
+206	common	gettid			sys_gettid
+207	32	readahead		parisc_readahead
+207	64	readahead		sys_readahead
+208	common	tkill			sys_tkill
+209	common	sendfile64		sys_sendfile64			compat_sys_sendfile64
+210	common	futex			sys_futex			compat_sys_futex
+211	common	sched_setaffinity	sys_sched_setaffinity		compat_sys_sched_setaffinity
+212	common	sched_getaffinity	sys_sched_getaffinity		compat_sys_sched_getaffinity
+# 213 was set_thread_area
+# 214 was get_thread_area
+215	common	io_setup		sys_io_setup			compat_sys_io_setup
+216	common	io_destroy		sys_io_destroy
+217	common	io_getevents		sys_io_getevents		compat_sys_io_getevents
+218	common	io_submit		sys_io_submit			compat_sys_io_submit
+219	common	io_cancel		sys_io_cancel
+# 220 was alloc_hugepages
+# 221 was free_hugepages
+222	common	exit_group		sys_exit_group
+223	common	lookup_dcookie		sys_lookup_dcookie		compat_sys_lookup_dcookie
+224	common	epoll_create		sys_epoll_create
+225	common	epoll_ctl		sys_epoll_ctl
+226	common	epoll_wait		sys_epoll_wait
+227	common	remap_file_pages	sys_remap_file_pages
+228	common	semtimedop		sys_semtimedop			compat_sys_semtimedop
+229	common	mq_open			sys_mq_open			compat_sys_mq_open
+230	common	mq_unlink		sys_mq_unlink
+231	common	mq_timedsend		sys_mq_timedsend		compat_sys_mq_timedsend
+232	common	mq_timedreceive		sys_mq_timedreceive		compat_sys_mq_timedreceive
+233	common	mq_notify		sys_mq_notify			compat_sys_mq_notify
+234	common	mq_getsetattr		sys_mq_getsetattr		compat_sys_mq_getsetattr
+235	common	waitid			sys_waitid			compat_sys_waitid
+236	32	fadvise64_64		parisc_fadvise64_64
+236	64	fadvise64_64		sys_fadvise64_64
+237	common	set_tid_address		sys_set_tid_address
+238	common	setxattr		sys_setxattr
+239	common	lsetxattr		sys_lsetxattr
+240	common	fsetxattr		sys_fsetxattr
+241	common	getxattr		sys_getxattr
+242	common	lgetxattr		sys_lgetxattr
+243	common	fgetxattr		sys_fgetxattr
+244	common	listxattr		sys_listxattr
+245	common	llistxattr		sys_llistxattr
+246	common	flistxattr		sys_flistxattr
+247	common	removexattr		sys_removexattr
+248	common	lremovexattr		sys_lremovexattr
+249	common	fremovexattr		sys_fremovexattr
+250	common	timer_create		sys_timer_create		compat_sys_timer_create
+251	common	timer_settime		sys_timer_settime		compat_sys_timer_settime
+252	common	timer_gettime		sys_timer_gettime		compat_sys_timer_gettime
+253	common	timer_getoverrun	sys_timer_getoverrun
+254	common	timer_delete		sys_timer_delete
+255	common	clock_settime		sys_clock_settime		compat_sys_clock_settime
+256	common	clock_gettime		sys_clock_gettime		compat_sys_clock_gettime
+257	common	clock_getres		sys_clock_getres		compat_sys_clock_getres
+258	common	clock_nanosleep		sys_clock_nanosleep		compat_sys_clock_nanosleep
+259	common	tgkill			sys_tgkill
+260	common	mbind			sys_mbind			compat_sys_mbind
+261	common	get_mempolicy		sys_get_mempolicy		compat_sys_get_mempolicy
+262	common	set_mempolicy		sys_set_mempolicy		compat_sys_set_mempolicy
+# 263 was vserver
+264	common	add_key			sys_add_key
+265	common	request_key		sys_request_key
+266	common	keyctl			sys_keyctl			compat_sys_keyctl
+267	common	ioprio_set		sys_ioprio_set
+268	common	ioprio_get		sys_ioprio_get
+269	common	inotify_init		sys_inotify_init
+270	common	inotify_add_watch	sys_inotify_add_watch
+271	common	inotify_rm_watch	sys_inotify_rm_watch
+272	common	migrate_pages		sys_migrate_pages
+273	common	pselect6		sys_pselect6			compat_sys_pselect6
+274	common	ppoll			sys_ppoll			compat_sys_ppoll
+275	common	openat			sys_openat			compat_sys_openat
+276	common	mkdirat			sys_mkdirat
+277	common	mknodat			sys_mknodat
+278	common	fchownat		sys_fchownat
+279	common	futimesat		sys_futimesat			compat_sys_futimesat
+280	common	fstatat64		sys_fstatat64
+281	common	unlinkat		sys_unlinkat
+282	common	renameat		sys_renameat
+283	common	linkat			sys_linkat
+284	common	symlinkat		sys_symlinkat
+285	common	readlinkat		sys_readlinkat
+286	common	fchmodat		sys_fchmodat
+287	common	faccessat		sys_faccessat
+288	common	unshare			sys_unshare
+289	common	set_robust_list		sys_set_robust_list		compat_sys_set_robust_list
+290	common	get_robust_list		sys_get_robust_list		compat_sys_get_robust_list
+291	common	splice			sys_splice
+292	32	sync_file_range		parisc_sync_file_range
+292	64	sync_file_range		sys_sync_file_range
+293	common	tee			sys_tee
+294	common	vmsplice		sys_vmsplice			compat_sys_vmsplice
+295	common	move_pages		sys_move_pages			compat_sys_move_pages
+296	common	getcpu			sys_getcpu
+297	common	epoll_pwait		sys_epoll_pwait			compat_sys_epoll_pwait
+298	common	statfs64		sys_statfs64			compat_sys_statfs64
+299	common	fstatfs64		sys_fstatfs64			compat_sys_fstatfs64
+300	common	kexec_load		sys_kexec_load			compat_sys_kexec_load
+301	common	utimensat		sys_utimensat			compat_sys_utimensat
+302	common	signalfd		sys_signalfd			compat_sys_signalfd
+# 303 was timerfd
+304	common	eventfd			sys_eventfd
+305	32	fallocate		parisc_fallocate
+305	64	fallocate		sys_fallocate
+306	common	timerfd_create		sys_timerfd_create
+307	common	timerfd_settime		sys_timerfd_settime		compat_sys_timerfd_settime
+308	common	timerfd_gettime		sys_timerfd_gettime		compat_sys_timerfd_gettime
+309	common	signalfd4		sys_signalfd4			compat_sys_signalfd4
+310	common	eventfd2		sys_eventfd2
+311	common	epoll_create1		sys_epoll_create1
+312	common	dup3			sys_dup3
+313	common	pipe2			sys_pipe2
+314	common	inotify_init1		sys_inotify_init1
+315	common	preadv	sys_preadv	compat_sys_preadv
+316	common	pwritev	sys_pwritev	compat_sys_pwritev
+317	common	rt_tgsigqueueinfo	sys_rt_tgsigqueueinfo		compat_sys_rt_tgsigqueueinfo
+318	common	perf_event_open		sys_perf_event_open
+319	common	recvmmsg		sys_recvmmsg			compat_sys_recvmmsg
+320	common	accept4			sys_accept4
+321	common	prlimit64		sys_prlimit64
+322	common	fanotify_init		sys_fanotify_init
+323	common	fanotify_mark		sys_fanotify_mark		sys32_fanotify_mark
+324	common	clock_adjtime		sys_clock_adjtime		compat_sys_clock_adjtime
+325	common	name_to_handle_at	sys_name_to_handle_at
+326	common	open_by_handle_at	sys_open_by_handle_at		compat_sys_open_by_handle_at
+327	common	syncfs			sys_syncfs
+328	common	setns			sys_setns
+329	common	sendmmsg		sys_sendmmsg			compat_sys_sendmmsg
+330	common	process_vm_readv	sys_process_vm_readv		compat_sys_process_vm_readv
+331	common	process_vm_writev	sys_process_vm_writev		compat_sys_process_vm_writev
+332	common	kcmp			sys_kcmp
+333	common	finit_module		sys_finit_module
+334	common	sched_setattr		sys_sched_setattr
+335	common	sched_getattr		sys_sched_getattr
+336	common	utimes			sys_utimes			compat_sys_utimes
+337	common	renameat2		sys_renameat2
+338	common	seccomp			sys_seccomp
+339	common	getrandom		sys_getrandom
+340	common	memfd_create		sys_memfd_create
+341	common	bpf			sys_bpf
+342	common	execveat		sys_execveat			compat_sys_execveat
+343	common	membarrier		sys_membarrier
+344	common	userfaultfd		sys_userfaultfd
+345	common	mlock2			sys_mlock2
+346	common	copy_file_range		sys_copy_file_range
+347	common	preadv2			sys_preadv2			compat_sys_preadv2
+348	common	pwritev2		sys_pwritev2			compat_sys_pwritev2
+349	common	statx			sys_statx
+350	common	io_pgetevents		sys_io_pgetevents		compat_sys_io_pgetevents
diff --git a/arch/parisc/kernel/syscalls/syscallhdr.sh b/arch/parisc/kernel/syscalls/syscallhdr.sh
new file mode 100644
index 0000000..50242b7
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscallhdr.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+prefix="$4"
+offset="$5"
+
+fileguard=_UAPI_ASM_PARISC_`basename "$out" | sed \
+	-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+	-e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+	printf "#ifndef %s\n" "${fileguard}"
+	printf "#define %s\n" "${fileguard}"
+	printf "\n"
+
+	nxt=0
+	while read nr abi name entry compat ; do
+		if [ -z "$offset" ]; then
+			printf "#define __NR_%s%s\t%s\n" \
+				"${prefix}" "${name}" "${nr}"
+		else
+			printf "#define __NR_%s%s\t(%s + %s)\n" \
+				"${prefix}" "${name}" "${offset}" "${nr}"
+		fi
+		nxt=$((nr+1))
+	done
+
+	printf "\n"
+	printf "#ifdef __KERNEL__\n"
+	printf "#define __NR_syscalls\t%s\n" "${nxt}"
+	printf "#endif\n"
+	printf "\n"
+	printf "#endif /* %s */" "${fileguard}"
+) > "$out"
diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh b/arch/parisc/kernel/syscalls/syscalltbl.sh
new file mode 100644
index 0000000..45b5bae
--- /dev/null
+++ b/arch/parisc/kernel/syscalls/syscalltbl.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+my_abi="$4"
+offset="$5"
+
+emit() {
+	t_nxt="$1"
+	t_nr="$2"
+	t_entry="$3"
+
+	while [ $t_nxt -lt $t_nr ]; do
+		printf "__SYSCALL(%s, sys_ni_syscall, )\n" "${t_nxt}"
+		t_nxt=$((t_nxt+1))
+	done
+	printf "__SYSCALL(%s, %s, )\n" "${t_nxt}" "${t_entry}"
+}
+
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+	nxt=0
+	if [ -z "$offset" ]; then
+		offset=0
+	fi
+
+	while read nr abi name entry compat ; do
+		if [ "$my_abi" = "c32" ] && [ ! -z "$compat" ]; then
+			emit $((nxt+offset)) $((nr+offset)) $compat
+		else
+			emit $((nxt+offset)) $((nr+offset)) $entry
+		fi
+		nxt=$((nr+1))
+	done
+) > "$out"
-- 
1.9.1



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Subject: [PATCH v6 4/5] parisc: generate uapi header and system call table files
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System call table generation script must be run to gener-
ate unistd_32/64.h and syscall_table_32/64/c32.h files.
This patch will have changes which will invokes the script.

This patch will generate unistd_32/64.h and syscall_table-
_32/64/c32.h files by the syscall table generation script
invoked by parisc/Makefile and the generated files against
the removed files must be identical.

The generated uapi header file will be included in uapi/-
asm/unistd.h and generated system call table header file
will be included by kernel/syscall.S file.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/parisc/Makefile                  |   4 +
 arch/parisc/include/asm/Kbuild        |   3 +
 arch/parisc/include/uapi/asm/Kbuild   |   2 +
 arch/parisc/include/uapi/asm/unistd.h | 373 +--------------------------
 arch/parisc/kernel/syscall.S          |  11 +-
 arch/parisc/kernel/syscall_table.S    | 459 ----------------------------------
 6 files changed, 23 insertions(+), 829 deletions(-)
 delete mode 100644 arch/parisc/kernel/syscall_table.S

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5ce0302..6b217da 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -159,6 +159,10 @@ endef
 
 # we require gcc 3.3 or above to compile the kernel
 archprepare: checkbin
+
+archheaders:
+	$(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all
+
 checkbin:
 	@if test "$(cc-version)" -lt "0303"; then \
 		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 2013d63..6b66fb9 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -23,3 +23,6 @@ generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += syscall_table_32.h
+generic-y += syscall_table_64.h
+generic-y += syscall_table_c32.h
diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
index 286ef5a..04360d9 100644
--- a/arch/parisc/include/uapi/asm/Kbuild
+++ b/arch/parisc/include/uapi/asm/Kbuild
@@ -7,3 +7,5 @@ generic-y += kvm_para.h
 generic-y += param.h
 generic-y += poll.h
 generic-y += resource.h
+generic-y += unistd_32.h
+generic-y += unistd_64.h
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index f10d065..518c1d6 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -2,374 +2,13 @@
 #ifndef _UAPI_ASM_PARISC_UNISTD_H_
 #define _UAPI_ASM_PARISC_UNISTD_H_
 
-/*
- * Linux system call numbers.
- *
- * Cary Coutant says that we should just use another syscall gateway
- * page to avoid clashing with the HPUX space, and I think he's right:
- * it will would keep a branch out of our syscall entry path, at the
- * very least.  If we decide to change it later, we can ``just'' tweak
- * the LINUX_GATEWAY_ADDR define at the bottom and make __NR_Linux be
- * 1024 or something.  Oh, and recompile libc. =)
- */
-
-#define __NR_Linux                0
-#define __NR_restart_syscall      (__NR_Linux + 0)
-#define __NR_exit                 (__NR_Linux + 1)
-#define __NR_fork                 (__NR_Linux + 2)
-#define __NR_read                 (__NR_Linux + 3)
-#define __NR_write                (__NR_Linux + 4)
-#define __NR_open                 (__NR_Linux + 5)
-#define __NR_close                (__NR_Linux + 6)
-#define __NR_waitpid              (__NR_Linux + 7)
-#define __NR_creat                (__NR_Linux + 8)
-#define __NR_link                 (__NR_Linux + 9)
-#define __NR_unlink              (__NR_Linux + 10)
-#define __NR_execve              (__NR_Linux + 11)
-#define __NR_chdir               (__NR_Linux + 12)
-#define __NR_time                (__NR_Linux + 13)
-#define __NR_mknod               (__NR_Linux + 14)
-#define __NR_chmod               (__NR_Linux + 15)
-#define __NR_lchown              (__NR_Linux + 16)
-#define __NR_socket              (__NR_Linux + 17)
-#define __NR_stat                (__NR_Linux + 18)
-#define __NR_lseek               (__NR_Linux + 19)
-#define __NR_getpid              (__NR_Linux + 20)
-#define __NR_mount               (__NR_Linux + 21)
-#define __NR_bind                (__NR_Linux + 22)
-#define __NR_setuid              (__NR_Linux + 23)
-#define __NR_getuid              (__NR_Linux + 24)
-#define __NR_stime               (__NR_Linux + 25)
-#define __NR_ptrace              (__NR_Linux + 26)
-#define __NR_alarm               (__NR_Linux + 27)
-#define __NR_fstat               (__NR_Linux + 28)
-#define __NR_pause               (__NR_Linux + 29)
-#define __NR_utime               (__NR_Linux + 30)
-#define __NR_connect             (__NR_Linux + 31)
-#define __NR_listen              (__NR_Linux + 32)
-#define __NR_access              (__NR_Linux + 33)
-#define __NR_nice                (__NR_Linux + 34)
-#define __NR_accept              (__NR_Linux + 35)
-#define __NR_sync                (__NR_Linux + 36)
-#define __NR_kill                (__NR_Linux + 37)
-#define __NR_rename              (__NR_Linux + 38)
-#define __NR_mkdir               (__NR_Linux + 39)
-#define __NR_rmdir               (__NR_Linux + 40)
-#define __NR_dup                 (__NR_Linux + 41)
-#define __NR_pipe                (__NR_Linux + 42)
-#define __NR_times               (__NR_Linux + 43)
-#define __NR_getsockname         (__NR_Linux + 44)
-#define __NR_brk                 (__NR_Linux + 45)
-#define __NR_setgid              (__NR_Linux + 46)
-#define __NR_getgid              (__NR_Linux + 47)
-#define __NR_signal              (__NR_Linux + 48)
-#define __NR_geteuid             (__NR_Linux + 49)
-#define __NR_getegid             (__NR_Linux + 50)
-#define __NR_acct                (__NR_Linux + 51)
-#define __NR_umount2             (__NR_Linux + 52)
-#define __NR_getpeername         (__NR_Linux + 53)
-#define __NR_ioctl               (__NR_Linux + 54)
-#define __NR_fcntl               (__NR_Linux + 55)
-#define __NR_socketpair          (__NR_Linux + 56)
-#define __NR_setpgid             (__NR_Linux + 57)
-#define __NR_send                (__NR_Linux + 58)
-#define __NR_uname               (__NR_Linux + 59)
-#define __NR_umask               (__NR_Linux + 60)
-#define __NR_chroot              (__NR_Linux + 61)
-#define __NR_ustat               (__NR_Linux + 62)
-#define __NR_dup2                (__NR_Linux + 63)
-#define __NR_getppid             (__NR_Linux + 64)
-#define __NR_getpgrp             (__NR_Linux + 65)
-#define __NR_setsid              (__NR_Linux + 66)
-#define __NR_pivot_root          (__NR_Linux + 67)
-#define __NR_sgetmask            (__NR_Linux + 68)
-#define __NR_ssetmask            (__NR_Linux + 69)
-#define __NR_setreuid            (__NR_Linux + 70)
-#define __NR_setregid            (__NR_Linux + 71)
-#define __NR_mincore             (__NR_Linux + 72)
-#define __NR_sigpending          (__NR_Linux + 73)
-#define __NR_sethostname         (__NR_Linux + 74)
-#define __NR_setrlimit           (__NR_Linux + 75)
-#define __NR_getrlimit           (__NR_Linux + 76)
-#define __NR_getrusage           (__NR_Linux + 77)
-#define __NR_gettimeofday        (__NR_Linux + 78)
-#define __NR_settimeofday        (__NR_Linux + 79)
-#define __NR_getgroups           (__NR_Linux + 80)
-#define __NR_setgroups           (__NR_Linux + 81)
-#define __NR_sendto              (__NR_Linux + 82)
-#define __NR_symlink             (__NR_Linux + 83)
-#define __NR_lstat               (__NR_Linux + 84)
-#define __NR_readlink            (__NR_Linux + 85)
-#define __NR_uselib              (__NR_Linux + 86)
-#define __NR_swapon              (__NR_Linux + 87)
-#define __NR_reboot              (__NR_Linux + 88)
-#define __NR_mmap2               (__NR_Linux + 89)
-#define __NR_mmap                (__NR_Linux + 90)
-#define __NR_munmap              (__NR_Linux + 91)
-#define __NR_truncate            (__NR_Linux + 92)
-#define __NR_ftruncate           (__NR_Linux + 93)
-#define __NR_fchmod              (__NR_Linux + 94)
-#define __NR_fchown              (__NR_Linux + 95)
-#define __NR_getpriority         (__NR_Linux + 96)
-#define __NR_setpriority         (__NR_Linux + 97)
-#define __NR_recv                (__NR_Linux + 98)
-#define __NR_statfs              (__NR_Linux + 99)
-#define __NR_fstatfs            (__NR_Linux + 100)
-#define __NR_stat64             (__NR_Linux + 101)
-/* #define __NR_socketcall         (__NR_Linux + 102) */
-#define __NR_syslog             (__NR_Linux + 103)
-#define __NR_setitimer          (__NR_Linux + 104)
-#define __NR_getitimer          (__NR_Linux + 105)
-#define __NR_capget             (__NR_Linux + 106)
-#define __NR_capset             (__NR_Linux + 107)
-#define __NR_pread64            (__NR_Linux + 108)
-#define __NR_pwrite64           (__NR_Linux + 109)
-#define __NR_getcwd             (__NR_Linux + 110)
-#define __NR_vhangup            (__NR_Linux + 111)
-#define __NR_fstat64            (__NR_Linux + 112)
-#define __NR_vfork              (__NR_Linux + 113)
-#define __NR_wait4              (__NR_Linux + 114)
-#define __NR_swapoff            (__NR_Linux + 115)
-#define __NR_sysinfo            (__NR_Linux + 116)
-#define __NR_shutdown           (__NR_Linux + 117)
-#define __NR_fsync              (__NR_Linux + 118)
-#define __NR_madvise            (__NR_Linux + 119)
-#define __NR_clone              (__NR_Linux + 120)
-#define __NR_setdomainname      (__NR_Linux + 121)
-#define __NR_sendfile           (__NR_Linux + 122)
-#define __NR_recvfrom           (__NR_Linux + 123)
-#define __NR_adjtimex           (__NR_Linux + 124)
-#define __NR_mprotect           (__NR_Linux + 125)
-#define __NR_sigprocmask        (__NR_Linux + 126)
-#define __NR_create_module      (__NR_Linux + 127) /* not used */
-#define __NR_init_module        (__NR_Linux + 128)
-#define __NR_delete_module      (__NR_Linux + 129)
-#define __NR_get_kernel_syms    (__NR_Linux + 130) /* not used */
-#define __NR_quotactl           (__NR_Linux + 131)
-#define __NR_getpgid            (__NR_Linux + 132)
-#define __NR_fchdir             (__NR_Linux + 133)
-#define __NR_bdflush            (__NR_Linux + 134)
-#define __NR_sysfs              (__NR_Linux + 135)
-#define __NR_personality        (__NR_Linux + 136)
-#define __NR_afs_syscall        (__NR_Linux + 137) /* not used */
-#define __NR_setfsuid           (__NR_Linux + 138)
-#define __NR_setfsgid           (__NR_Linux + 139)
-#define __NR__llseek            (__NR_Linux + 140)
-#define __NR_getdents           (__NR_Linux + 141)
-#define __NR__newselect         (__NR_Linux + 142)
-#define __NR_flock              (__NR_Linux + 143)
-#define __NR_msync              (__NR_Linux + 144)
-#define __NR_readv              (__NR_Linux + 145)
-#define __NR_writev             (__NR_Linux + 146)
-#define __NR_getsid             (__NR_Linux + 147)
-#define __NR_fdatasync          (__NR_Linux + 148)
-#define __NR__sysctl            (__NR_Linux + 149)
-#define __NR_mlock              (__NR_Linux + 150)
-#define __NR_munlock            (__NR_Linux + 151)
-#define __NR_mlockall           (__NR_Linux + 152)
-#define __NR_munlockall         (__NR_Linux + 153)
-#define __NR_sched_setparam             (__NR_Linux + 154)
-#define __NR_sched_getparam             (__NR_Linux + 155)
-#define __NR_sched_setscheduler         (__NR_Linux + 156)
-#define __NR_sched_getscheduler         (__NR_Linux + 157)
-#define __NR_sched_yield                (__NR_Linux + 158)
-#define __NR_sched_get_priority_max     (__NR_Linux + 159)
-#define __NR_sched_get_priority_min     (__NR_Linux + 160)
-#define __NR_sched_rr_get_interval      (__NR_Linux + 161)
-#define __NR_nanosleep          (__NR_Linux + 162)
-#define __NR_mremap             (__NR_Linux + 163)
-#define __NR_setresuid          (__NR_Linux + 164)
-#define __NR_getresuid          (__NR_Linux + 165)
-#define __NR_sigaltstack        (__NR_Linux + 166)
-#define __NR_query_module       (__NR_Linux + 167) /* not used */
-#define __NR_poll               (__NR_Linux + 168)
-#define __NR_nfsservctl         (__NR_Linux + 169) /* not used */
-#define __NR_setresgid          (__NR_Linux + 170)
-#define __NR_getresgid          (__NR_Linux + 171)
-#define __NR_prctl              (__NR_Linux + 172)
-#define __NR_rt_sigreturn       (__NR_Linux + 173)
-#define __NR_rt_sigaction       (__NR_Linux + 174)
-#define __NR_rt_sigprocmask     (__NR_Linux + 175)
-#define __NR_rt_sigpending      (__NR_Linux + 176)
-#define __NR_rt_sigtimedwait    (__NR_Linux + 177)
-#define __NR_rt_sigqueueinfo    (__NR_Linux + 178)
-#define __NR_rt_sigsuspend      (__NR_Linux + 179)
-#define __NR_chown              (__NR_Linux + 180)
-#define __NR_setsockopt         (__NR_Linux + 181)
-#define __NR_getsockopt         (__NR_Linux + 182)
-#define __NR_sendmsg            (__NR_Linux + 183)
-#define __NR_recvmsg            (__NR_Linux + 184)
-#define __NR_semop              (__NR_Linux + 185)
-#define __NR_semget             (__NR_Linux + 186)
-#define __NR_semctl             (__NR_Linux + 187)
-#define __NR_msgsnd             (__NR_Linux + 188)
-#define __NR_msgrcv             (__NR_Linux + 189)
-#define __NR_msgget             (__NR_Linux + 190)
-#define __NR_msgctl             (__NR_Linux + 191)
-#define __NR_shmat              (__NR_Linux + 192)
-#define __NR_shmdt              (__NR_Linux + 193)
-#define __NR_shmget             (__NR_Linux + 194)
-#define __NR_shmctl             (__NR_Linux + 195)
-#define __NR_getpmsg            (__NR_Linux + 196) /* not used */
-#define __NR_putpmsg            (__NR_Linux + 197) /* not used */
-#define __NR_lstat64            (__NR_Linux + 198)
-#define __NR_truncate64         (__NR_Linux + 199)
-#define __NR_ftruncate64        (__NR_Linux + 200)
-#define __NR_getdents64         (__NR_Linux + 201)
-#define __NR_fcntl64            (__NR_Linux + 202)
-#define __NR_attrctl            (__NR_Linux + 203) /* not used */
-#define __NR_acl_get            (__NR_Linux + 204) /* not used */
-#define __NR_acl_set            (__NR_Linux + 205) /* not used */
-#define __NR_gettid             (__NR_Linux + 206)
-#define __NR_readahead          (__NR_Linux + 207)
-#define __NR_tkill              (__NR_Linux + 208)
-#define __NR_sendfile64         (__NR_Linux + 209)
-#define __NR_futex              (__NR_Linux + 210)
-#define __NR_sched_setaffinity  (__NR_Linux + 211)
-#define __NR_sched_getaffinity  (__NR_Linux + 212)
-#define __NR_set_thread_area    (__NR_Linux + 213) /* not used */
-#define __NR_get_thread_area    (__NR_Linux + 214) /* not used */
-#define __NR_io_setup           (__NR_Linux + 215)
-#define __NR_io_destroy         (__NR_Linux + 216)
-#define __NR_io_getevents       (__NR_Linux + 217)
-#define __NR_io_submit          (__NR_Linux + 218)
-#define __NR_io_cancel          (__NR_Linux + 219)
-#define __NR_alloc_hugepages    (__NR_Linux + 220) /* not used */
-#define __NR_free_hugepages     (__NR_Linux + 221) /* not used */
-#define __NR_exit_group         (__NR_Linux + 222)
-#define __NR_lookup_dcookie     (__NR_Linux + 223)
-#define __NR_epoll_create       (__NR_Linux + 224)
-#define __NR_epoll_ctl          (__NR_Linux + 225)
-#define __NR_epoll_wait         (__NR_Linux + 226)
-#define __NR_remap_file_pages   (__NR_Linux + 227)
-#define __NR_semtimedop         (__NR_Linux + 228)
-#define __NR_mq_open            (__NR_Linux + 229)
-#define __NR_mq_unlink          (__NR_Linux + 230)
-#define __NR_mq_timedsend       (__NR_Linux + 231)
-#define __NR_mq_timedreceive    (__NR_Linux + 232)
-#define __NR_mq_notify          (__NR_Linux + 233)
-#define __NR_mq_getsetattr      (__NR_Linux + 234)
-#define __NR_waitid		(__NR_Linux + 235)
-#define __NR_fadvise64_64	(__NR_Linux + 236)
-#define __NR_set_tid_address	(__NR_Linux + 237)
-#define __NR_setxattr		(__NR_Linux + 238)
-#define __NR_lsetxattr		(__NR_Linux + 239)
-#define __NR_fsetxattr		(__NR_Linux + 240)
-#define __NR_getxattr		(__NR_Linux + 241)
-#define __NR_lgetxattr		(__NR_Linux + 242)
-#define __NR_fgetxattr		(__NR_Linux + 243)
-#define __NR_listxattr		(__NR_Linux + 244)
-#define __NR_llistxattr		(__NR_Linux + 245)
-#define __NR_flistxattr		(__NR_Linux + 246)
-#define __NR_removexattr	(__NR_Linux + 247)
-#define __NR_lremovexattr	(__NR_Linux + 248)
-#define __NR_fremovexattr	(__NR_Linux + 249)
-#define __NR_timer_create	(__NR_Linux + 250)
-#define __NR_timer_settime	(__NR_Linux + 251)
-#define __NR_timer_gettime	(__NR_Linux + 252)
-#define __NR_timer_getoverrun	(__NR_Linux + 253)
-#define __NR_timer_delete	(__NR_Linux + 254)
-#define __NR_clock_settime	(__NR_Linux + 255)
-#define __NR_clock_gettime	(__NR_Linux + 256)
-#define __NR_clock_getres	(__NR_Linux + 257)
-#define __NR_clock_nanosleep	(__NR_Linux + 258)
-#define __NR_tgkill		(__NR_Linux + 259)
-#define __NR_mbind		(__NR_Linux + 260)
-#define __NR_get_mempolicy	(__NR_Linux + 261)
-#define __NR_set_mempolicy	(__NR_Linux + 262)
-#define __NR_vserver		(__NR_Linux + 263) /* not used */
-#define __NR_add_key		(__NR_Linux + 264)
-#define __NR_request_key	(__NR_Linux + 265)
-#define __NR_keyctl		(__NR_Linux + 266)
-#define __NR_ioprio_set		(__NR_Linux + 267)
-#define __NR_ioprio_get		(__NR_Linux + 268)
-#define __NR_inotify_init	(__NR_Linux + 269)
-#define __NR_inotify_add_watch	(__NR_Linux + 270)
-#define __NR_inotify_rm_watch	(__NR_Linux + 271)
-#define __NR_migrate_pages	(__NR_Linux + 272)
-#define __NR_pselect6		(__NR_Linux + 273)
-#define __NR_ppoll		(__NR_Linux + 274)
-#define __NR_openat		(__NR_Linux + 275)
-#define __NR_mkdirat		(__NR_Linux + 276)
-#define __NR_mknodat		(__NR_Linux + 277)
-#define __NR_fchownat		(__NR_Linux + 278)
-#define __NR_futimesat		(__NR_Linux + 279)
-#define __NR_fstatat64		(__NR_Linux + 280)
-#define __NR_unlinkat		(__NR_Linux + 281)
-#define __NR_renameat		(__NR_Linux + 282)
-#define __NR_linkat		(__NR_Linux + 283)
-#define __NR_symlinkat		(__NR_Linux + 284)
-#define __NR_readlinkat		(__NR_Linux + 285)
-#define __NR_fchmodat		(__NR_Linux + 286)
-#define __NR_faccessat		(__NR_Linux + 287)
-#define __NR_unshare		(__NR_Linux + 288)
-#define __NR_set_robust_list	(__NR_Linux + 289)
-#define __NR_get_robust_list	(__NR_Linux + 290)
-#define __NR_splice		(__NR_Linux + 291)
-#define __NR_sync_file_range	(__NR_Linux + 292)
-#define __NR_tee		(__NR_Linux + 293)
-#define __NR_vmsplice		(__NR_Linux + 294)
-#define __NR_move_pages		(__NR_Linux + 295)
-#define __NR_getcpu		(__NR_Linux + 296)
-#define __NR_epoll_pwait	(__NR_Linux + 297)
-#define __NR_statfs64		(__NR_Linux + 298)
-#define __NR_fstatfs64		(__NR_Linux + 299)
-#define __NR_kexec_load		(__NR_Linux + 300)
-#define __NR_utimensat		(__NR_Linux + 301)
-#define __NR_signalfd		(__NR_Linux + 302)
-#define __NR_timerfd		(__NR_Linux + 303) /* not used */
-#define __NR_eventfd		(__NR_Linux + 304)
-#define __NR_fallocate		(__NR_Linux + 305)
-#define __NR_timerfd_create	(__NR_Linux + 306)
-#define __NR_timerfd_settime	(__NR_Linux + 307)
-#define __NR_timerfd_gettime	(__NR_Linux + 308)
-#define __NR_signalfd4		(__NR_Linux + 309)
-#define __NR_eventfd2		(__NR_Linux + 310)
-#define __NR_epoll_create1	(__NR_Linux + 311)
-#define __NR_dup3		(__NR_Linux + 312)
-#define __NR_pipe2		(__NR_Linux + 313)
-#define __NR_inotify_init1	(__NR_Linux + 314)
-#define __NR_preadv		(__NR_Linux + 315)
-#define __NR_pwritev		(__NR_Linux + 316)
-#define __NR_rt_tgsigqueueinfo	(__NR_Linux + 317)
-#define __NR_perf_event_open	(__NR_Linux + 318)
-#define __NR_recvmmsg		(__NR_Linux + 319)
-#define __NR_accept4		(__NR_Linux + 320)
-#define __NR_prlimit64		(__NR_Linux + 321)
-#define __NR_fanotify_init	(__NR_Linux + 322)
-#define __NR_fanotify_mark	(__NR_Linux + 323)
-#define __NR_clock_adjtime	(__NR_Linux + 324)
-#define __NR_name_to_handle_at	(__NR_Linux + 325)
-#define __NR_open_by_handle_at	(__NR_Linux + 326)
-#define __NR_syncfs		(__NR_Linux + 327)
-#define __NR_setns		(__NR_Linux + 328)
-#define __NR_sendmmsg		(__NR_Linux + 329)
-#define __NR_process_vm_readv	(__NR_Linux + 330)
-#define __NR_process_vm_writev	(__NR_Linux + 331)
-#define __NR_kcmp		(__NR_Linux + 332)
-#define __NR_finit_module	(__NR_Linux + 333)
-#define __NR_sched_setattr	(__NR_Linux + 334)
-#define __NR_sched_getattr	(__NR_Linux + 335)
-#define __NR_utimes		(__NR_Linux + 336)
-#define __NR_renameat2		(__NR_Linux + 337)
-#define __NR_seccomp		(__NR_Linux + 338)
-#define __NR_getrandom		(__NR_Linux + 339)
-#define __NR_memfd_create	(__NR_Linux + 340)
-#define __NR_bpf		(__NR_Linux + 341)
-#define __NR_execveat		(__NR_Linux + 342)
-#define __NR_membarrier		(__NR_Linux + 343)
-#define __NR_userfaultfd	(__NR_Linux + 344)
-#define __NR_mlock2		(__NR_Linux + 345)
-#define __NR_copy_file_range	(__NR_Linux + 346)
-#define __NR_preadv2		(__NR_Linux + 347)
-#define __NR_pwritev2		(__NR_Linux + 348)
-#define __NR_statx		(__NR_Linux + 349)
-#define __NR_io_pgetevents	(__NR_Linux + 350)
-
-#ifdef __KERNEL__
-#define __NR_syscalls           351
+#define __NR_Linux           0
+#ifdef __LP64__
+#include <asm/unistd_64.h>
+#else
+#include <asm/unistd_32.h>
 #endif
 
-#define LINUX_GATEWAY_ADDR      0x100
+#define LINUX_GATEWAY_ADDR   0x100
 
 #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index f453997..5af0176 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -923,19 +923,24 @@ ENTRY(lws_table)
 END(lws_table)
 	/* End of lws table */
 
+#define __SYSCALL(nr, entry, nargs) ASM_ULONG_INSN entry
 	.align 8
 ENTRY(sys_call_table)
 	.export sys_call_table,data
-#include "syscall_table.S"
+#ifdef CONFIG_64BIT
+#include <asm/syscall_table_c32.h>   /* Compat syscalls */
+#else
+#include <asm/syscall_table_32.h>    /* 32-bit native syscalls */
+#endif
 END(sys_call_table)
 
 #ifdef CONFIG_64BIT
 	.align 8
 ENTRY(sys_call_table64)
-#define SYSCALL_TABLE_64BIT
-#include "syscall_table.S"
+#include <asm/syscall_table_64.h>    /* 64-bit native syscalls */
 END(sys_call_table64)
 #endif
+#undef __SYSCALL
 
 	/*
 		All light-weight-syscall atomic operations 
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
deleted file mode 100644
index fe3f2a4..0000000
--- a/arch/parisc/kernel/syscall_table.S
+++ /dev/null
@@ -1,459 +0,0 @@
-/*    System Call Table
- *
- *    Copyright (C) 1999-2004 Matthew Wilcox <willy at parisc-linux.org>
- *    Copyright (C) 2000-2001 John Marvin <jsm at parisc-linux.org>
- *    Copyright (C) 2000 Alan Modra <amodra at parisc-linux.org>
- *    Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
- *    Copyright (C) 2000 Philipp Rumpf <prumpf with tux.org>
- *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
- *    Copyright (C) 2000 David Huggins-Daines <dhd with pobox.org>
- *    Copyright (C) 2000 Grant Grundler <grundler at parisc-linux.org>
- *    Copyright (C) 2001 Richard Hirst <rhirst with parisc-linux.org>
- *    Copyright (C) 2001-2002 Ryan Bradetich <rbrad at parisc-linux.org>
- *    Copyright (C) 2001-2007 Helge Deller <deller at parisc-linux.org>
- *    Copyright (C) 2000-2001 Thomas Bogendoerfer <tsbogend at parisc-linux.org>
- *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
- *    Copyright (C) 2005-2006 Kyle McMartin <kyle at parisc-linux.org>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#if defined(CONFIG_64BIT) && !defined(SYSCALL_TABLE_64BIT)
-/* Use ENTRY_SAME for 32-bit syscalls which are the same on wide and
- * narrow palinux.  Use ENTRY_DIFF for those where a 32-bit specific
- * implementation is required on wide palinux.  Use ENTRY_COMP where
- * the compatibility layer has a useful 32-bit implementation.
- */
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys32_##_name_
-#define ENTRY_UHOH(_name_) .dword sys32_##unimplemented
-#define ENTRY_OURS(_name_) .dword parisc_##_name_
-#define ENTRY_COMP(_name_) .dword compat_sys_##_name_
-#elif defined(CONFIG_64BIT) && defined(SYSCALL_TABLE_64BIT)
-#define ENTRY_SAME(_name_) .dword sys_##_name_
-#define ENTRY_DIFF(_name_) .dword sys_##_name_
-#define ENTRY_UHOH(_name_) .dword sys_##_name_
-#define ENTRY_OURS(_name_) .dword sys_##_name_
-#define ENTRY_COMP(_name_) .dword sys_##_name_
-#else
-#define ENTRY_SAME(_name_) .word sys_##_name_
-#define ENTRY_DIFF(_name_) .word sys_##_name_
-#define ENTRY_UHOH(_name_) .word sys_##_name_
-#define ENTRY_OURS(_name_) .word parisc_##_name_
-#define ENTRY_COMP(_name_) .word sys_##_name_
-#endif
-
-90:	ENTRY_SAME(restart_syscall)	/* 0 */
-91:	ENTRY_SAME(exit)
-	ENTRY_SAME(fork_wrapper)
-	ENTRY_SAME(read)
-	ENTRY_SAME(write)
-	ENTRY_COMP(open)		/* 5 */
-	ENTRY_SAME(close)
-	ENTRY_SAME(waitpid)
-	ENTRY_SAME(creat)
-	ENTRY_SAME(link)
-	ENTRY_SAME(unlink)		/* 10 */
-	ENTRY_COMP(execve)
-	ENTRY_SAME(chdir)
-	/* See comments in kernel/time.c!!! Maybe we don't need this? */
-	ENTRY_COMP(time)
-	ENTRY_SAME(mknod)
-	ENTRY_SAME(chmod)		/* 15 */
-	ENTRY_SAME(lchown)
-	ENTRY_SAME(socket)
-	/* struct stat is MAYBE identical wide and narrow ?? */
-	ENTRY_COMP(newstat)
-	ENTRY_COMP(lseek)
-	ENTRY_SAME(getpid)		/* 20 */
-	/* the 'void * data' parameter may need re-packing in wide */
-	ENTRY_COMP(mount)
-	/* concerned about struct sockaddr in wide/narrow */
-	/* ---> I think sockaddr is OK unless the compiler packs the struct */
-	/*      differently to align the char array */
-	ENTRY_SAME(bind)
-	ENTRY_SAME(setuid)
-	ENTRY_SAME(getuid)
-	ENTRY_COMP(stime)		/* 25 */
-	ENTRY_COMP(ptrace)
-	ENTRY_SAME(alarm)
-	/* see stat comment */
-	ENTRY_COMP(newfstat)
-	ENTRY_SAME(pause)
-	/* struct utimbuf uses time_t which might vary */
-	ENTRY_COMP(utime)		/* 30 */
-	/* struct sockaddr... */
-	ENTRY_SAME(connect)
-	ENTRY_SAME(listen)
-	ENTRY_SAME(access)
-	ENTRY_SAME(nice)
-	/* struct sockaddr... */
-	ENTRY_SAME(accept)		/* 35 */
-	ENTRY_SAME(sync)
-	ENTRY_SAME(kill)
-	ENTRY_SAME(rename)
-	ENTRY_SAME(mkdir)
-	ENTRY_SAME(rmdir)		/* 40 */
-	ENTRY_SAME(dup)
-	ENTRY_SAME(pipe)
-	ENTRY_COMP(times)
-	/* struct sockaddr... */
-	ENTRY_SAME(getsockname)
-	/* it seems possible brk() could return a >4G pointer... */
-	ENTRY_SAME(brk)			/* 45 */
-	ENTRY_SAME(setgid)
-	ENTRY_SAME(getgid)
-	ENTRY_SAME(signal)
-	ENTRY_SAME(geteuid)
-	ENTRY_SAME(getegid)		/* 50 */
-	ENTRY_SAME(acct)
-	ENTRY_SAME(umount)
-	/* struct sockaddr... */
-	ENTRY_SAME(getpeername)
-	ENTRY_COMP(ioctl)
-	ENTRY_COMP(fcntl)		/* 55 */
-	ENTRY_SAME(socketpair)
-	ENTRY_SAME(setpgid)
-	ENTRY_SAME(send)
-	ENTRY_SAME(newuname)
-	ENTRY_SAME(umask)		/* 60 */
-	ENTRY_SAME(chroot)
-	ENTRY_COMP(ustat)
-	ENTRY_SAME(dup2)
-	ENTRY_SAME(getppid)
-	ENTRY_SAME(getpgrp)		/* 65 */
-	ENTRY_SAME(setsid)
-	ENTRY_SAME(pivot_root)
-	/* I don't like this */
-	ENTRY_UHOH(sgetmask)
-	ENTRY_UHOH(ssetmask)
-	ENTRY_SAME(setreuid)		/* 70 */
-	ENTRY_SAME(setregid)
-	ENTRY_SAME(mincore)
-	ENTRY_COMP(sigpending)
-	ENTRY_SAME(sethostname)
-	/* Following 3 have linux-common-code structs containing longs -( */
-	ENTRY_COMP(setrlimit)		/* 75 */
-	ENTRY_COMP(getrlimit)
-	ENTRY_COMP(getrusage)
-	/* struct timeval and timezone are maybe?? consistent wide and narrow */
-	ENTRY_COMP(gettimeofday)
-	ENTRY_COMP(settimeofday)
-	ENTRY_SAME(getgroups)		/* 80 */
-	ENTRY_SAME(setgroups)
-	/* struct socketaddr... */
-	ENTRY_SAME(sendto)
-	ENTRY_SAME(symlink)
-	/* see stat comment */
-	ENTRY_COMP(newlstat)
-	ENTRY_SAME(readlink)		/* 85 */
-	ENTRY_SAME(ni_syscall)	/* was uselib */
-	ENTRY_SAME(swapon)
-	ENTRY_SAME(reboot)
-	ENTRY_SAME(mmap2)
-	ENTRY_SAME(mmap)		/* 90 */
-	ENTRY_SAME(munmap)
-	ENTRY_COMP(truncate)
-	ENTRY_COMP(ftruncate)
-	ENTRY_SAME(fchmod)
-	ENTRY_SAME(fchown)		/* 95 */
-	ENTRY_SAME(getpriority)
-	ENTRY_SAME(setpriority)
-	ENTRY_SAME(recv)
-	ENTRY_COMP(statfs)
-	ENTRY_COMP(fstatfs)		/* 100 */
-	ENTRY_SAME(stat64)
-	ENTRY_SAME(ni_syscall)	/* was socketcall */
-	ENTRY_SAME(syslog)
-	/* even though manpage says struct timeval contains longs, ours has
-	 * time_t and suseconds_t -- both of which are safe wide/narrow */
-	ENTRY_COMP(setitimer)
-	ENTRY_COMP(getitimer)		/* 105 */
-	ENTRY_SAME(capget)
-	ENTRY_SAME(capset)
-	ENTRY_OURS(pread64)
-	ENTRY_OURS(pwrite64)
-	ENTRY_SAME(getcwd)		/* 110 */
-	ENTRY_SAME(vhangup)
-	ENTRY_SAME(fstat64)
-	ENTRY_SAME(vfork_wrapper)
-	/* struct rusage contains longs... */
-	ENTRY_COMP(wait4)
-	ENTRY_SAME(swapoff)		/* 115 */
-	ENTRY_COMP(sysinfo)
-	ENTRY_SAME(shutdown)
-	ENTRY_SAME(fsync)
-	ENTRY_SAME(madvise)
-	ENTRY_SAME(clone_wrapper)	/* 120 */
-	ENTRY_SAME(setdomainname)
-	ENTRY_COMP(sendfile)
-	/* struct sockaddr... */
-	ENTRY_SAME(recvfrom)
-	/* struct timex contains longs */
-	ENTRY_COMP(adjtimex)
-	ENTRY_SAME(mprotect)		/* 125 */
-	/* old_sigset_t forced to 32 bits.  Beware glibc sigset_t */
-	ENTRY_COMP(sigprocmask)
-	ENTRY_SAME(ni_syscall)	/* create_module */
-	ENTRY_SAME(init_module)
-	ENTRY_SAME(delete_module)
-	ENTRY_SAME(ni_syscall)		/* 130: get_kernel_syms */
-	/* time_t inside struct dqblk */
-	ENTRY_SAME(quotactl)
-	ENTRY_SAME(getpgid)
-	ENTRY_SAME(fchdir)
-	ENTRY_SAME(bdflush)
-	ENTRY_SAME(sysfs)		/* 135 */
-	ENTRY_OURS(personality)
-	ENTRY_SAME(ni_syscall)	/* for afs_syscall */
-	ENTRY_SAME(setfsuid)
-	ENTRY_SAME(setfsgid)
-	/* I think this might work */
-	ENTRY_SAME(llseek)		/* 140 */
-	ENTRY_COMP(getdents)
-	/* it is POSSIBLE that select will be OK because even though fd_set
-	 * contains longs, the macros and sizes are clever. */
-	ENTRY_COMP(select)
-	ENTRY_SAME(flock)
-	ENTRY_SAME(msync)
-	/* struct iovec contains pointers */
-	ENTRY_COMP(readv)		/* 145 */
-	ENTRY_COMP(writev)
-	ENTRY_SAME(getsid)
-	ENTRY_SAME(fdatasync)
-	/* struct __sysctl_args is a mess */
-	ENTRY_COMP(sysctl)
-	ENTRY_SAME(mlock)		/* 150 */
-	ENTRY_SAME(munlock)
-	ENTRY_SAME(mlockall)
-	ENTRY_SAME(munlockall)
-	/* struct sched_param is ok for now */
-	ENTRY_SAME(sched_setparam)
-	ENTRY_SAME(sched_getparam)	/* 155 */
-	ENTRY_SAME(sched_setscheduler)
-	ENTRY_SAME(sched_getscheduler)
-	ENTRY_SAME(sched_yield)
-	ENTRY_SAME(sched_get_priority_max)
-	ENTRY_SAME(sched_get_priority_min)	/* 160 */
-	ENTRY_COMP(sched_rr_get_interval)
-	ENTRY_COMP(nanosleep)
-	ENTRY_SAME(mremap)
-	ENTRY_SAME(setresuid)
-	ENTRY_SAME(getresuid)		/* 165 */
-	ENTRY_COMP(sigaltstack)
-	ENTRY_SAME(ni_syscall)		/* query_module */
-	ENTRY_SAME(poll)
-	/* structs contain pointers and an in_addr... */
-	ENTRY_SAME(ni_syscall)		/* was nfsservctl */
-	ENTRY_SAME(setresgid)		/* 170 */
-	ENTRY_SAME(getresgid)
-	ENTRY_SAME(prctl)
-	/* signals need a careful review */
-	ENTRY_SAME(rt_sigreturn_wrapper)
-	ENTRY_COMP(rt_sigaction)
-	ENTRY_COMP(rt_sigprocmask)	/* 175 */
-	ENTRY_COMP(rt_sigpending)
-	ENTRY_COMP(rt_sigtimedwait)
-	/* even though the struct siginfo_t is different, it appears like
-	 * all the paths use values which should be same wide and narrow.
-	 * Also the struct is padded to 128 bytes which means we don't have
-	 * to worry about faulting trying to copy in a larger 64-bit
-	 * struct from a 32-bit user-space app.
-	 */
-	ENTRY_COMP(rt_sigqueueinfo)
-	ENTRY_COMP(rt_sigsuspend)
-	ENTRY_SAME(chown)		/* 180 */
-	/* setsockopt() used by iptables: SO_SET_REPLACE/SO_SET_ADD_COUNTERS */
-	ENTRY_COMP(setsockopt)
-	ENTRY_COMP(getsockopt)
-	ENTRY_COMP(sendmsg)
-	ENTRY_COMP(recvmsg)
-	ENTRY_SAME(semop)		/* 185 */
-	ENTRY_SAME(semget)
-	ENTRY_COMP(semctl)
-	ENTRY_COMP(msgsnd)
-	ENTRY_COMP(msgrcv)
-	ENTRY_SAME(msgget)		/* 190 */
-	ENTRY_COMP(msgctl)
-	ENTRY_COMP(shmat)
-	ENTRY_SAME(shmdt)
-	ENTRY_SAME(shmget)
-	ENTRY_COMP(shmctl)		/* 195 */
-	ENTRY_SAME(ni_syscall)		/* streams1 */
-	ENTRY_SAME(ni_syscall)		/* streams2 */
-	ENTRY_SAME(lstat64)
-	ENTRY_OURS(truncate64)
-	ENTRY_OURS(ftruncate64)		/* 200 */
-	ENTRY_SAME(getdents64)
-	ENTRY_COMP(fcntl64)
-	ENTRY_SAME(ni_syscall)	/* attrctl -- dead */
-	ENTRY_SAME(ni_syscall)	/* acl_get -- dead */
-	ENTRY_SAME(ni_syscall)		/* 205 (acl_set -- dead) */
-	ENTRY_SAME(gettid)
-	ENTRY_OURS(readahead)
-	ENTRY_SAME(tkill)
-	ENTRY_COMP(sendfile64)
-	ENTRY_COMP(futex)		/* 210 */
-	ENTRY_COMP(sched_setaffinity)
-	ENTRY_COMP(sched_getaffinity)
-	ENTRY_SAME(ni_syscall)	/* set_thread_area */
-	ENTRY_SAME(ni_syscall)	/* get_thread_area */
-	ENTRY_COMP(io_setup)		/* 215 */
-	ENTRY_SAME(io_destroy)
-	ENTRY_COMP(io_getevents)
-	ENTRY_COMP(io_submit)
-	ENTRY_SAME(io_cancel)
-	ENTRY_SAME(ni_syscall)		/* 220: was alloc_hugepages */
-	ENTRY_SAME(ni_syscall)		/* was free_hugepages */
-	ENTRY_SAME(exit_group)
-	ENTRY_COMP(lookup_dcookie)
-	ENTRY_SAME(epoll_create)
-	ENTRY_SAME(epoll_ctl)		/* 225 */
-	ENTRY_SAME(epoll_wait)
- 	ENTRY_SAME(remap_file_pages)
-	ENTRY_COMP(semtimedop)
-	ENTRY_COMP(mq_open)
-	ENTRY_SAME(mq_unlink)		/* 230 */
-	ENTRY_COMP(mq_timedsend)
-	ENTRY_COMP(mq_timedreceive)
-	ENTRY_COMP(mq_notify)
-	ENTRY_COMP(mq_getsetattr)
-	ENTRY_COMP(waitid)		/* 235 */
-	ENTRY_OURS(fadvise64_64)
-	ENTRY_SAME(set_tid_address)
-	ENTRY_SAME(setxattr)
-	ENTRY_SAME(lsetxattr)
-	ENTRY_SAME(fsetxattr)		/* 240 */
-	ENTRY_SAME(getxattr)
-	ENTRY_SAME(lgetxattr)
-	ENTRY_SAME(fgetxattr)
-	ENTRY_SAME(listxattr)
-	ENTRY_SAME(llistxattr)		/* 245 */
-	ENTRY_SAME(flistxattr)
-	ENTRY_SAME(removexattr)
-	ENTRY_SAME(lremovexattr)
-	ENTRY_SAME(fremovexattr)
-	ENTRY_COMP(timer_create)	/* 250 */
-	ENTRY_COMP(timer_settime)
-	ENTRY_COMP(timer_gettime)
-	ENTRY_SAME(timer_getoverrun)
-	ENTRY_SAME(timer_delete)
-	ENTRY_COMP(clock_settime)	/* 255 */
-	ENTRY_COMP(clock_gettime)
-	ENTRY_COMP(clock_getres)
-	ENTRY_COMP(clock_nanosleep)
-	ENTRY_SAME(tgkill)
-	ENTRY_COMP(mbind)		/* 260 */
-	ENTRY_COMP(get_mempolicy)
-	ENTRY_COMP(set_mempolicy)
-	ENTRY_SAME(ni_syscall)	/* 263: reserved for vserver */
-	ENTRY_SAME(add_key)
-	ENTRY_SAME(request_key)		/* 265 */
-	ENTRY_COMP(keyctl)
-	ENTRY_SAME(ioprio_set)
-	ENTRY_SAME(ioprio_get)
-	ENTRY_SAME(inotify_init)
-	ENTRY_SAME(inotify_add_watch)	/* 270 */
-	ENTRY_SAME(inotify_rm_watch)
-	ENTRY_SAME(migrate_pages)
-	ENTRY_COMP(pselect6)
-	ENTRY_COMP(ppoll)
-	ENTRY_COMP(openat)		/* 275 */
-	ENTRY_SAME(mkdirat)
-	ENTRY_SAME(mknodat)
-	ENTRY_SAME(fchownat)
-	ENTRY_COMP(futimesat)
-	ENTRY_SAME(fstatat64)		/* 280 */
-	ENTRY_SAME(unlinkat)
-	ENTRY_SAME(renameat)
-	ENTRY_SAME(linkat)
-	ENTRY_SAME(symlinkat)
-	ENTRY_SAME(readlinkat)		/* 285 */
-	ENTRY_SAME(fchmodat)
-	ENTRY_SAME(faccessat)
-	ENTRY_SAME(unshare)
-	ENTRY_COMP(set_robust_list)
-	ENTRY_COMP(get_robust_list)	/* 290 */
-	ENTRY_SAME(splice)
-	ENTRY_OURS(sync_file_range)
-	ENTRY_SAME(tee)
-	ENTRY_COMP(vmsplice)
-	ENTRY_COMP(move_pages)		/* 295 */
-	ENTRY_SAME(getcpu)
-	ENTRY_COMP(epoll_pwait)
-	ENTRY_COMP(statfs64)
-	ENTRY_COMP(fstatfs64)
-	ENTRY_COMP(kexec_load)		/* 300 */
-	ENTRY_COMP(utimensat)
-	ENTRY_COMP(signalfd)
-	ENTRY_SAME(ni_syscall)		/* was timerfd */
-	ENTRY_SAME(eventfd)
-	ENTRY_OURS(fallocate)		/* 305 */
-	ENTRY_SAME(timerfd_create)
-	ENTRY_COMP(timerfd_settime)
-	ENTRY_COMP(timerfd_gettime)
-	ENTRY_COMP(signalfd4)
-	ENTRY_SAME(eventfd2)		/* 310 */
-	ENTRY_SAME(epoll_create1)
-	ENTRY_SAME(dup3)
-	ENTRY_SAME(pipe2)
-	ENTRY_SAME(inotify_init1)
-	ENTRY_COMP(preadv)		/* 315 */
-	ENTRY_COMP(pwritev)
-	ENTRY_COMP(rt_tgsigqueueinfo)
-	ENTRY_SAME(perf_event_open)
-	ENTRY_COMP(recvmmsg)
-	ENTRY_SAME(accept4)		/* 320 */
-	ENTRY_SAME(prlimit64)
-	ENTRY_SAME(fanotify_init)
-	ENTRY_DIFF(fanotify_mark)
-	ENTRY_COMP(clock_adjtime)
-	ENTRY_SAME(name_to_handle_at)	/* 325 */
-	ENTRY_COMP(open_by_handle_at)
-	ENTRY_SAME(syncfs)
-	ENTRY_SAME(setns)
-	ENTRY_COMP(sendmmsg)
-	ENTRY_COMP(process_vm_readv)	/* 330 */
-	ENTRY_COMP(process_vm_writev)
-	ENTRY_SAME(kcmp)
-	ENTRY_SAME(finit_module)
-	ENTRY_SAME(sched_setattr)
-	ENTRY_SAME(sched_getattr)	/* 335 */
-	ENTRY_COMP(utimes)
-	ENTRY_SAME(renameat2)
-	ENTRY_SAME(seccomp)
-	ENTRY_SAME(getrandom)
-	ENTRY_SAME(memfd_create)	/* 340 */
-	ENTRY_SAME(bpf)
-	ENTRY_COMP(execveat)
-	ENTRY_SAME(membarrier)
-	ENTRY_SAME(userfaultfd)
-	ENTRY_SAME(mlock2)		/* 345 */
-	ENTRY_SAME(copy_file_range)
-	ENTRY_COMP(preadv2)
-	ENTRY_COMP(pwritev2)
-	ENTRY_SAME(statx)
-	ENTRY_COMP(io_pgetevents)	/* 350 */
-
-
-.ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
-.error "size of syscall table does not fit value of __NR_Linux_syscalls"
-.endif
-
-#undef ENTRY_SAME
-#undef ENTRY_DIFF
-#undef ENTRY_UHOH
-#undef ENTRY_COMP
-#undef ENTRY_OURS
-- 
1.9.1



From - Thu Nov 08 21:42:22 2018
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From: Firoz Khan <firoz.khan@linaro.org>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.kernel.year-2038,gmane.linux.kernel.cross-arch
Subject: [PATCH v6 5/5] parisc: syscalls: ignore nfsservctl for other architectures
Date: Fri, 26 Oct 2018 10:43:11 +0530
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This adds an exception to the syscall table checking script.

nfsservctl entry is only provided on x86, and there is no
reason to add it elsewhere. However, including it on the
syscall table caused a warning for most configurations on
non-x86.

<stdin>:696:2: warning: #warning syscall nfsservctl not implemented [-Wcpp]

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 scripts/checksyscalls.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
index ee3dfb5..cf93100 100755
--- a/scripts/checksyscalls.sh
+++ b/scripts/checksyscalls.sh
@@ -150,6 +150,7 @@ cat << EOF
 #define __IGNORE_uselib
 #define __IGNORE__sysctl
 #define __IGNORE_arch_prctl
+#define __IGNORE_nfsservctl
 
 /* ... including the "new" 32-bit uid syscalls */
 #define __IGNORE_lchown32
-- 
1.9.1



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Subject: Re: [PATCH v2 0/2] arm64: Cut rebuild time when changing
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/2908567>

On Thu, Oct 25, 2018 at 04:13:10PM -0500, Rob Herring wrote:
> On Thu, Oct 25, 2018 at 12:30 PM Mike Rapoport <rppt@linux.ibm.com> wrote:
> >
> > On Thu, Oct 25, 2018 at 08:15:15AM -0500, Rob Herring wrote:
> > > +Ard
> > >
> > > On Thu, Oct 25, 2018 at 4:38 AM Mike Rapoport <rppt@linux.ibm.com> wrote:
> > > >
> > > > On Wed, Oct 24, 2018 at 02:55:17PM -0500, Rob Herring wrote:
> > > > > On Wed, Oct 24, 2018 at 2:33 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
> > > > > >
> > > > > > Hi all,
> > > > > >
> > > > > > While investigating why ARM64 required a ton of objects to be rebuilt
> > > > > > when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
> > > > > > because we define __early_init_dt_declare_initrd() differently and we do
> > > > > > that in arch/arm64/include/asm/memory.h which gets included by a fair
> > > > > > amount of other header files, and translation units as well.
> > > > >
> > > > > I scratch my head sometimes as to why some config options rebuild so
> > > > > much stuff. One down, ? to go. :)
> > > > >
> > > > > > Changing the value of CONFIG_DEV_BLK_INITRD is a common thing with build
> > > > > > systems that generate two kernels: one with the initramfs and one
> > > > > > without. buildroot is one of these build systems, OpenWrt is also
> > > > > > another one that does this.
> > > > > >
> > > > > > This patch series proposes adding an empty initrd.h to satisfy the need
> > > > > > for drivers/of/fdt.c to unconditionally include that file, and moves the
> > > > > > custom __early_init_dt_declare_initrd() definition away from
> > > > > > asm/memory.h
> > > > > >
> > > > > > This cuts the number of objects rebuilds from 1920 down to 26, so a
> > > > > > factor 73 approximately.
> > > > > >
> > > > > > Apologies for the long CC list, please let me know how you would go
> > > > > > about merging that and if another approach would be preferable, e.g:
> > > > > > introducing a CONFIG_ARCH_INITRD_BELOW_START_OK Kconfig option or
> > > > > > something like that.
> > > > >
> > > > > There may be a better way as of 4.20 because bootmem is now gone and
> > > > > only memblock is used. This should unify what each arch needs to do
> > > > > with initrd early. We need the physical address early for memblock
> > > > > reserving. Then later on we need the virtual address to access the
> > > > > initrd. Perhaps we should just change initrd_start and initrd_end to
> > > > > physical addresses (or add 2 new variables would be less invasive and
> > > > > allow for different translation than __va()). The sanity checks and
> > > > > memblock reserve could also perhaps be moved to a common location.
> > > > >
> > > > > Alternatively, given arm64 is the only oddball, I'd be fine with an
> > > > > "if (IS_ENABLED(CONFIG_ARM64))" condition in the default
> > > > > __early_init_dt_declare_initrd as long as we have a path to removing
> > > > > it like the above option.
> > > >
> > > > I think arm64 does not have to redefine __early_init_dt_declare_initrd().
> > > > Something like this might be just all we need (completely untested,
> > > > probably it won't even compile):
> > > >
> > > > diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
> > > > index 9d9582c..e9ca238 100644
> > > > --- a/arch/arm64/mm/init.c
> > > > +++ b/arch/arm64/mm/init.c
> > > > @@ -62,6 +62,9 @@ s64 memstart_addr __ro_after_init = -1;
> > > >  phys_addr_t arm64_dma_phys_limit __ro_after_init;
> > > >
> > > >  #ifdef CONFIG_BLK_DEV_INITRD
> > > > +
> > > > +static phys_addr_t initrd_start_phys, initrd_end_phys;
> > > > +
> > > >  static int __init early_initrd(char *p)
> > > >  {
> > > >         unsigned long start, size;
> > > > @@ -71,8 +74,8 @@ static int __init early_initrd(char *p)
> > > >         if (*endp == ',') {
> > > >                 size = memparse(endp + 1, NULL);
> > > >
> > > > -               initrd_start = start;
> > > > -               initrd_end = start + size;
> > > > +               initrd_start_phys = start;
> > > > +               initrd_end_phys = end;
> > > >         }
> > > >         return 0;
> > > >  }
> > > > @@ -407,14 +410,27 @@ void __init arm64_memblock_init(void)
> > > >                 memblock_add(__pa_symbol(_text), (u64)(_end - _text));
> > > >         }
> > > >
> > > > -       if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && initrd_start) {
> > > > +       if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) &&
> > > > +           (initrd_start || initrd_start_phys)) {
> > > > +               /*
> > > > +                * FIXME: ensure proper precendence between
> > > > +                * early_initrd and DT when both are present
> > >
> > > Command line takes precedence, so just reverse the order.
> > >
> > > > +                */
> > > > +               if (initrd_start) {
> > > > +                       initrd_start_phys = __phys_to_virt(initrd_start);
> > > > +                       initrd_end_phys = __phys_to_virt(initrd_end);
> 
> BTW, I think you meant virt_to_phys() here?

Right, and then there is no problem at all do the conversion here :)
 
> > >
> > > AIUI, the original issue was doing the P2V translation was happening
> > > too early and the VA could be wrong if the linear range is adjusted.
> > > So I don't think this would work.
> >
> > Probably things have changed since then, but in the current code there is
> >
> >                 initrd_start = __phys_to_virt(initrd_start);
> >
> > and in between only the code related to CONFIG_RANDOMIZE_BASE, so I believe
> > it's safe to use __phys_to_virt() here as well.
> 
> Here is fine yes, but I believe it was the the phys to virt in the DT
> code before adjusting the linear range that was the problem.
> 
> Rob
> 

-- 
Sincerely yours,
Mike.



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Subject: Re: [PATCH 1/4] treewide: remove unused address argument from
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On Wed, Oct 24, 2018 at 07:21:19PM -0700, Joel Fernandes wrote:
> On Wed, Oct 24, 2018 at 10:37:16AM +0200, Peter Zijlstra wrote:
> > On Fri, Oct 12, 2018 at 06:31:57PM -0700, Joel Fernandes (Google) wrote:
> > > This series speeds up mremap(2) syscall by copying page tables at the
> > > PMD level even for non-THP systems. There is concern that the extra
> > > 'address' argument that mremap passes to pte_alloc may do something
> > > subtle architecture related in the future that may make the scheme not
> > > work.  Also we find that there is no point in passing the 'address' to
> > > pte_alloc since its unused. So this patch therefore removes this
> > > argument tree-wide resulting in a nice negative diff as well. Also
> > > ensuring along the way that the enabled architectures do not do anything
> > > funky with 'address' argument that goes unnoticed by the optimization.
> > 
> > Did you happen to look at the history of where that address argument
> > came from? -- just being curious here. ISTR something vague about
> > architectures having different paging structure for different memory
> > ranges.
> 
> I didn't happen to do that analysis but from code analysis, no architecutre
> is using it. Since its unused in the kernel, may be such architectures don't
> exist or were removed, so we don't need to bother? Could you share more about
> your concern with the removal of this argument?

No concerns at all with removing it; I was purely curious as to the
origin of the unused argument. Kirill provided that answer.

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Subject: Re: [PATCH 1/4] treewide: remove unused address argument from
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To: "Kirill A. Shutemov" <kirill@shutemov.name>
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On Thu, Oct 25, 2018 at 01:47:03PM +0300, Kirill A. Shutemov wrote:
> On Wed, Oct 24, 2018 at 10:37:16AM +0200, Peter Zijlstra wrote:
> > On Fri, Oct 12, 2018 at 06:31:57PM -0700, Joel Fernandes (Google) wrote:
> > > This series speeds up mremap(2) syscall by copying page tables at the
> > > PMD level even for non-THP systems. There is concern that the extra
> > > 'address' argument that mremap passes to pte_alloc may do something
> > > subtle architecture related in the future that may make the scheme not
> > > work.  Also we find that there is no point in passing the 'address' to
> > > pte_alloc since its unused. So this patch therefore removes this
> > > argument tree-wide resulting in a nice negative diff as well. Also
> > > ensuring along the way that the enabled architectures do not do anything
> > > funky with 'address' argument that goes unnoticed by the optimization.
> > 
> > Did you happen to look at the history of where that address argument
> > came from? -- just being curious here. ISTR something vague about
> > architectures having different paging structure for different memory
> > ranges.
> 
> I see some archicetures (i.e. sparc and, I believe power) used the address
> for coloring. It's not needed anymore. Page allocator and SL?B are good
> enough now.
> 
> See 3c936465249f ("[SPARC64]: Kill pgtable quicklists and use SLAB.")

Ah, shiny. Thanks.

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Subject: Re: [PATCH v2 0/2] arm64: Cut rebuild time when changing
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On Thu, Oct 25, 2018 at 04:07:13PM -0700, Florian Fainelli wrote:
> On 10/25/18 2:13 PM, Rob Herring wrote:
> > On Thu, Oct 25, 2018 at 12:30 PM Mike Rapoport <rppt@linux.ibm.com> wrote:
> >>
> >> On Thu, Oct 25, 2018 at 08:15:15AM -0500, Rob Herring wrote:
> >>> +Ard
> >>>
> >>> On Thu, Oct 25, 2018 at 4:38 AM Mike Rapoport <rppt@linux.ibm.com> wrote:
> >>>>
> >>>> On Wed, Oct 24, 2018 at 02:55:17PM -0500, Rob Herring wrote:
> >>>>> On Wed, Oct 24, 2018 at 2:33 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
> >>>>>>
> >>>>>> Hi all,
> >>>>>>
> >>>>>> While investigating why ARM64 required a ton of objects to be rebuilt
> >>>>>> when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
> >>>>>> because we define __early_init_dt_declare_initrd() differently and we do
> >>>>>> that in arch/arm64/include/asm/memory.h which gets included by a fair
> >>>>>> amount of other header files, and translation units as well.
> >>>>>
> >>>> I think arm64 does not have to redefine __early_init_dt_declare_initrd().
> >>>> Something like this might be just all we need (completely untested,
> >>>> probably it won't even compile):

[ ... ]
 
> FWIW, I am extracting the ARM implementation that parses the initrd
> early command line parameter and the "setup" code doing the page
> boundary alignment and memblock checking into a helper into lib/ that
> other architectures can re-use. So far, this removes the need for
> unicore32, arc and arm to duplicate essentially the same logic.

Presuming you are going to need asm-generic/initrd.h for that as well,
using override for __early_init_dt_declare_initrd in arm64 version of
initrd.h might be the simplest option.

> -- 
> Florian
> 

-- 
Sincerely yours,
Mike.



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From: Florian Fainelli <f.fainelli@gmail.com>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.hexagon,gmane.linux.ports.ia64,gmane.linux.ports.mips.general,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.riscv,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.drivers.devicetree,gmane.linux.kernel.cross-arch
Subject: Re: [PATCH v2 0/2] arm64: Cut rebuild time when changing
 CONFIG_BLK_DEV_INITRD
Date: Fri, 26 Oct 2018 12:05:25 -0700
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Cc: Rob Herring <robh@kernel.org>,
        Ard Biesheuvel <ard.biesheuvel@linaro.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
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To: Mike Rapoport <rppt@linux.ibm.com>
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On 10/26/18 4:07 AM, Mike Rapoport wrote:
> On Thu, Oct 25, 2018 at 04:07:13PM -0700, Florian Fainelli wrote:
>> On 10/25/18 2:13 PM, Rob Herring wrote:
>>> On Thu, Oct 25, 2018 at 12:30 PM Mike Rapoport <rppt@linux.ibm.com> wrote:
>>>>
>>>> On Thu, Oct 25, 2018 at 08:15:15AM -0500, Rob Herring wrote:
>>>>> +Ard
>>>>>
>>>>> On Thu, Oct 25, 2018 at 4:38 AM Mike Rapoport <rppt@linux.ibm.com> wrote:
>>>>>>
>>>>>> On Wed, Oct 24, 2018 at 02:55:17PM -0500, Rob Herring wrote:
>>>>>>> On Wed, Oct 24, 2018 at 2:33 PM Florian Fainelli <f.fainelli@gmail.com> wrote:
>>>>>>>>
>>>>>>>> Hi all,
>>>>>>>>
>>>>>>>> While investigating why ARM64 required a ton of objects to be rebuilt
>>>>>>>> when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
>>>>>>>> because we define __early_init_dt_declare_initrd() differently and we do
>>>>>>>> that in arch/arm64/include/asm/memory.h which gets included by a fair
>>>>>>>> amount of other header files, and translation units as well.
>>>>>>>
>>>>>> I think arm64 does not have to redefine __early_init_dt_declare_initrd().
>>>>>> Something like this might be just all we need (completely untested,
>>>>>> probably it won't even compile):
> 
> [ ... ]
>  
>> FWIW, I am extracting the ARM implementation that parses the initrd
>> early command line parameter and the "setup" code doing the page
>> boundary alignment and memblock checking into a helper into lib/ that
>> other architectures can re-use. So far, this removes the need for
>> unicore32, arc and arm to duplicate essentially the same logic.
> 
> Presuming you are going to need asm-generic/initrd.h for that as well,
> using override for __early_init_dt_declare_initrd in arm64 version of
> initrd.h might be the simplest option.

What I am contemplating doing is promote
phys_initrd_start/phys_initrd_size to be global variables (similar to
initrd_start, initrd_end) and have a generic helper function for parsing
the initrd= command line parameter and finally removing
__early_init_dt_declare_initrd() because we could have
early_init_dt_check_for_initrd() just populate
phys_initrd_start/phys_initrd_size directly as well as
initrd_start/initrd_end using __va() to preserve compatibility with
architectures that rely on this. Then I would convert ARM64 to check for
phys_initrd_start which is really what it is is trying to do in
arch/arm64/mm/init.c::arm64_memblock_init().

Does that sound like a reasonable approach?
-- 
Florian


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From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
Date: Fri, 26 Oct 2018 14:11:48 -0700
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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To: "Kirill A. Shutemov" <kirill@shutemov.name>
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On Thu, Oct 25, 2018 at 01:19:00PM +0300, Kirill A. Shutemov wrote:
> On Wed, Oct 24, 2018 at 07:09:07PM -0700, Joel Fernandes wrote:
> > On Wed, Oct 24, 2018 at 03:57:24PM +0300, Kirill A. Shutemov wrote:
> > > On Wed, Oct 24, 2018 at 10:57:33PM +1100, Balbir Singh wrote:
> > > > On Wed, Oct 24, 2018 at 01:12:56PM +0300, Kirill A. Shutemov wrote:
> > > > > On Fri, Oct 12, 2018 at 06:31:58PM -0700, Joel Fernandes (Google) wrote:
> > > > > > diff --git a/mm/mremap.c b/mm/mremap.c
> > > > > > index 9e68a02a52b1..2fd163cff406 100644
> > > > > > --- a/mm/mremap.c
> > > > > > +++ b/mm/mremap.c
> > > > > > @@ -191,6 +191,54 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
> > > > > >  		drop_rmap_locks(vma);
> > > > > >  }
> > > > > >  
> > > > > > +static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
> > > > > > +		  unsigned long new_addr, unsigned long old_end,
> > > > > > +		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
> > > > > > +{
> > > > > > +	spinlock_t *old_ptl, *new_ptl;
> > > > > > +	struct mm_struct *mm = vma->vm_mm;
> > > > > > +
> > > > > > +	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
> > > > > > +	    || old_end - old_addr < PMD_SIZE)
> > > > > > +		return false;
> > > > > > +
> > > > > > +	/*
> > > > > > +	 * The destination pmd shouldn't be established, free_pgtables()
> > > > > > +	 * should have release it.
> > > > > > +	 */
> > > > > > +	if (WARN_ON(!pmd_none(*new_pmd)))
> > > > > > +		return false;
> > > > > > +
> > > > > > +	/*
> > > > > > +	 * We don't have to worry about the ordering of src and dst
> > > > > > +	 * ptlocks because exclusive mmap_sem prevents deadlock.
> > > > > > +	 */
> > > > > > +	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
> > > > > > +	if (old_ptl) {
> > > > > 
> > > > > How can it ever be false?
> > 
> > Kirill,
> > It cannot, you are right. I'll remove the test.
> > 
> > By the way, there are new changes upstream by Linus which flush the TLB
> > before releasing the ptlock instead of after. I'm guessing that patch came
> > about because of reviews of this patch and someone spotted an issue in the
> > existing code :)
> > 
> > Anyway the patch in concern is:
> > eb66ae030829 ("mremap: properly flush TLB before releasing the page")
> > 
> > I need to rebase on top of that with appropriate modifications, but I worry
> > that this patch will slow down performance since we have to flush at every
> > PMD/PTE move before releasing the ptlock. Where as with my patch, the
> > intention is to flush only at once in the end of move_page_tables. When I
> > tried to flush TLB on every PMD move, it was quite slow on my arm64 device [2].
> > 
> > Further observation [1] is, it seems like the move_huge_pmds and move_ptes code
> > is a bit sub optimal in the sense, we are acquiring and releasing the same
> > ptlock for a bunch of PMDs if the said PMDs are on the same page-table page
> > right? Instead we can do better by acquiring and release the ptlock less
> > often.
> > 
> > I think this observation [1] and the frequent TLB flush issue [2] can be solved
> > by acquiring the ptlock once for a bunch of PMDs, move them all, then flush
> > the tlb and then release the ptlock, and then proceed to doing the same thing
> > for the PMDs in the next page-table page. What do you think?
> 
> Yeah, that's viable optimization.
> 
> The tricky part is that one PMD page table can have PMD entires of
> different types: THP, page table that you can move as whole and the one
> that you cannot (for any reason).
> 
> If we cannot move the PMD entry as a whole and must go to PTE page table
> we would need to drop PMD ptl and take PTE ptl (it might be the same lock
> in some configuations).

> Also we don't want to take PMD lock unless it's required.
> 
> I expect it to be not very trivial to get everything right. But take a
> shot :)

Yes, that is exactly the issue I hit when I attempted it. :) The locks need
to be release if we do something different on the next loop iteration. It
complicates the code and not sure if it is worth it in the long run.  On x86
atleast, I don't see any perf issues with the TLB-flush per-PMD move, so the
patch is Ok there. On arm64, it negates the performance benefit even though
its not any worse than what we are doing currently at the PTE level.

My thinking is to take it slow and get the patch in in its current state,
since it improves x86. Then as a next step, look into why the arm64 tlb
flushes are that expensive and look into optimizing that. On arm64 I am
testing on a 4.9 kernel so I'm wondering there are any optimizations since
4.9 that can help speed it up there. After that, if all else fails about
speeding up arm64, then I look into developing the cleanest possible solution
where we can keep the lock held for longer and flush lesser.

thanks,

 - Joel

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Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
Date: Sat, 27 Oct 2018 21:21:02 +1100
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On Wed, Oct 24, 2018 at 07:13:50PM -0700, Joel Fernandes wrote:
> On Wed, Oct 24, 2018 at 10:57:33PM +1100, Balbir Singh wrote:
> [...]
> > > > +		pmd_t pmd;
> > > > +
> > > > +		new_ptl = pmd_lockptr(mm, new_pmd);
> > 
> > 
> > Looks like this is largely inspired by move_huge_pmd(), I guess a lot of
> > the code applies, why not just reuse as much as possible? The same comments
> > w.r.t mmap_sem helping protect against lock order issues applies as well.
> 
> I thought about this and when I looked into it, it seemed there are subtle
> differences that make such sharing not worth it (or not possible).
>

Could you elaborate on them?

Thanks,
Balbir Singh. 

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Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
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To: Balbir Singh <bsingharora@gmail.com>
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Hi Balbir,

On Sat, Oct 27, 2018 at 09:21:02PM +1100, Balbir Singh wrote:
> On Wed, Oct 24, 2018 at 07:13:50PM -0700, Joel Fernandes wrote:
> > On Wed, Oct 24, 2018 at 10:57:33PM +1100, Balbir Singh wrote:
> > [...]
> > > > > +		pmd_t pmd;
> > > > > +
> > > > > +		new_ptl = pmd_lockptr(mm, new_pmd);
> > > 
> > > 
> > > Looks like this is largely inspired by move_huge_pmd(), I guess a lot of
> > > the code applies, why not just reuse as much as possible? The same comments
> > > w.r.t mmap_sem helping protect against lock order issues applies as well.
> > 
> > I thought about this and when I looked into it, it seemed there are subtle
> > differences that make such sharing not worth it (or not possible).
> >
> 
> Could you elaborate on them?

The move_huge_page function is defined only for CONFIG_TRANSPARENT_HUGEPAGE
so we cannot reuse it to begin with, since we have it disabled on our
systems. I am not sure if it is a good idea to split that out and refactor it
for reuse especially since our case is quite simple compared to huge pages.

There are also a couple of subtle differences between the move_normal_pmd and
the move_huge_pmd. Atleast 2 of them are:

1. We don't concern ourself with the PMD dirty bit, since the pages being
moved are normal pages and at the soft-dirty bit accounting is at the PTE
level, since we are not moving PTEs, we don't need to do that.

2. The locking is simpler as Kirill pointed, pmd_lock cannot fail however
__pmd_trans_huge_lock can.

I feel it is not super useful to refactor move_huge_pmd to support our case
especially since move_normal_pmd is quite small, so IMHO the benefit of code
reuse isn't there very much.

Do let me know your thoughts and thanks for your interest in this.

thanks,

 - Joel

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Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
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To: Joel Fernandes <joel@joelfernandes.org>
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On Sat, Oct 27, 2018 at 12:39:17PM -0700, Joel Fernandes wrote:
> Hi Balbir,
> 
> On Sat, Oct 27, 2018 at 09:21:02PM +1100, Balbir Singh wrote:
> > On Wed, Oct 24, 2018 at 07:13:50PM -0700, Joel Fernandes wrote:
> > > On Wed, Oct 24, 2018 at 10:57:33PM +1100, Balbir Singh wrote:
> > > [...]
> > > > > > +		pmd_t pmd;
> > > > > > +
> > > > > > +		new_ptl = pmd_lockptr(mm, new_pmd);
> > > > 
> > > > 
> > > > Looks like this is largely inspired by move_huge_pmd(), I guess a lot of
> > > > the code applies, why not just reuse as much as possible? The same comments
> > > > w.r.t mmap_sem helping protect against lock order issues applies as well.
> > > 
> > > I thought about this and when I looked into it, it seemed there are subtle
> > > differences that make such sharing not worth it (or not possible).
> > >
> > 
> > Could you elaborate on them?
> 
> The move_huge_page function is defined only for CONFIG_TRANSPARENT_HUGEPAGE
> so we cannot reuse it to begin with, since we have it disabled on our
> systems. I am not sure if it is a good idea to split that out and refactor it
> for reuse especially since our case is quite simple compared to huge pages.
> 
> There are also a couple of subtle differences between the move_normal_pmd and
> the move_huge_pmd. Atleast 2 of them are:
> 
> 1. We don't concern ourself with the PMD dirty bit, since the pages being
> moved are normal pages and at the soft-dirty bit accounting is at the PTE
> level, since we are not moving PTEs, we don't need to do that.
> 
> 2. The locking is simpler as Kirill pointed, pmd_lock cannot fail however
> __pmd_trans_huge_lock can.
> 
> I feel it is not super useful to refactor move_huge_pmd to support our case
> especially since move_normal_pmd is quite small, so IMHO the benefit of code
> reuse isn't there very much.
>

My big concern is that any bug fixes will need to monitor both paths.
Do you see a big overhead in checking the soft dirty bit? The locking is
a little different. Having said that, I am not strictly opposed to the
extra code, just concerned about missing fixes/updates as we find them.
 
> Do let me know your thoughts and thanks for your interest in this.
> 
>

Balbir Singh. 

From - Thu Nov 08 21:42:23 2018
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH 2/4] mm: speed up mremap by 500x on large regions (v2)
Date: Mon, 29 Oct 2018 10:28:40 +0000
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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To: Joel Fernandes <joel@joelfernandes.org>
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Xref: news.gmane.org gmane.linux.kernel.arc:4630 gmane.linux.ports.mips.general:67206 gmane.linux.ports.ia64:29458 gmane.linux.ports.sh.devel:57705 gmane.linux.kernel.mm:206084 gmane.linux.ports.sparc:28680 gmane.linux.ports.riscv:1241 gmane.comp.emulators.kvm.arm.devel:19606 gmane.linux.ports.hexagon:1970 gmane.linux.ports.parisc:29257 gmane.linux.kernel:2909770 gmane.linux.ports.alpha:5386 gmane.linux.ports.ppc64.devel:164985
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On Fri, Oct 26, 2018 at 02:11:48PM -0700, Joel Fernandes wrote:
> My thinking is to take it slow and get the patch in in its current state,
> since it improves x86. Then as a next step, look into why the arm64 tlb
> flushes are that expensive and look into optimizing that. On arm64 I am
> testing on a 4.9 kernel so I'm wondering there are any optimizations since
> 4.9 that can help speed it up there. After that, if all else fails about
> speeding up arm64, then I look into developing the cleanest possible solution
> where we can keep the lock held for longer and flush lesser.

We rewrote a good chunk of the arm64 TLB invalidation and core mmu_gather
code this merge window, so please do have another look at -rc1!

Will

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From: Helge Deller <deller@gmx.de>
Newsgroups: gmane.linux.kernel,gmane.linux.ports.parisc
Subject: [GIT PULL] parisc architecture fixes for kernel v4.20
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To: Linus Torvalds <torvalds@linux-foundation.org>,
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Hi Linus,

please pull three small patches for the parisc architecture for 4.20-rc1 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.20-2

Three small patches:

- A boot fix for A500 machines, crash was caused by the new alternative
  patching code from this merge window (by Dave)
- Change __kernel_suseconds_t to match glibc on 64-bit parisc (by Arnd)
- Use constants instead of hard-coded numbers (by me)

Thanks,
Helge

----------------------------------------------------------------
Arnd Bergmann (1):
      parisc64: change __kernel_suseconds_t to match glibc

Helge Deller (1):
      parisc: Use LINUX_GATEWAY_SPACE constant in entry.S

John David Anglin (1):
      parisc: Fix A500 boot crash

 arch/parisc/include/uapi/asm/posix_types.h |  3 ---
 arch/parisc/kernel/entry.S                 |  5 +++--
 arch/parisc/mm/init.c                      | 10 ++++------
 3 files changed, 7 insertions(+), 11 deletions(-)


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From: Linus Torvalds <torvalds@linux-foundation.org>
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Subject: Re: [GIT PULL] parisc architecture fixes for kernel v4.20
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On Mon, Oct 29, 2018 at 2:04 PM Helge Deller <deller@gmx.de> wrote:
>
> Three small patches:

Pulled,

                  Linus


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From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH -next 3/3] mm: select HAVE_MOVE_PMD in x86 for faster mremap
Date: Fri,  2 Nov 2018 21:00:41 -0700
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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To: linux-kernel@vger.kernel.org
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From: "Joel Fernandes (Google)" <joel@joelfernandes.org>

Moving page-tables at the PMD-level on x86 is known to be safe. Enable
this option so that we can do fast mremap when possible.

Suggested-by: Kirill A. Shutemov <kirill@shutemov.name>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ba7e3464ee92..48aef01a0bd1 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -173,6 +173,7 @@ config X86
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_MIXED_BREAKPOINTS_REGS
 	select HAVE_MOD_ARCH_SPECIFIC
+	select HAVE_MOVE_PMD
 	select HAVE_NMI
 	select HAVE_OPROFILE
 	select HAVE_OPTPROBES
-- 
2.19.1.930.g4563a0d9d0-goog

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Path: news.gmane.org!.POSTED!not-for-mail
From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH -next 0/3] Add support for fast mremap
Date: Fri,  2 Nov 2018 21:00:38 -0700
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Cc: Joel Fernandes <joelaf@google.com>, linux-mips@linux-mips.org,
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To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4683>

Hi,
Here is the latest "fast mremap" series. This just a repost with Kirill's
Acked-bys added. I would like this to be considered for linux -next.  I also
dropped the CONFIG enablement patch for arm64 since I am yet to test it with
the new TLB flushing code that is in very recent kernel releases. (None of my
arm64 devices run mainline right now.) so I will post the arm64 enablement once
I get to that. The performance numbers in the series are for x86.

List of patches in series:

(1) mm: select HAVE_MOVE_PMD in x86 for faster mremap

(2) mm: speed up mremap by 20x on large regions (v4)
v1->v2: Added support for per-arch enablement (Kirill Shutemov)
v2->v3: Updated commit message to state the optimization may also
	run for non-thp type of systems (Daniel Col).
v3->v4: Remove useless pmd_lock check (Kirill Shutemov)
	Rebased ontop of Linus's master, updated perf results based
        on x86 testing. Added Kirill's Acks.

(3) mm: treewide: remove unused address argument from pte_alloc functions (v2)
v1->v2: fix arch/um/ prototype which was missed in v1 (Anton Ivanov)
        update changelog with manual fixups for m68k and microblaze.

not included - (4) mm: select HAVE_MOVE_PMD in arm64 for faster mremap
    This patch is dropped since last posting pending further performance
    testing on arm64 with new TLB gather updates. See notes in patch
    titled "mm: speed up mremap by 500x on large regions" for more
    details.


Joel Fernandes (Google) (3):
  mm: treewide: remove unused address argument from pte_alloc functions
    (v2)
  mm: speed up mremap by 20x on large regions (v4)
  mm: select HAVE_MOVE_PMD in x86 for faster mremap

 arch/Kconfig                                 |  5 ++
 arch/alpha/include/asm/pgalloc.h             |  6 +-
 arch/arc/include/asm/pgalloc.h               |  5 +-
 arch/arm/include/asm/pgalloc.h               |  4 +-
 arch/arm64/include/asm/pgalloc.h             |  4 +-
 arch/hexagon/include/asm/pgalloc.h           |  6 +-
 arch/ia64/include/asm/pgalloc.h              |  5 +-
 arch/m68k/include/asm/mcf_pgalloc.h          |  8 +--
 arch/m68k/include/asm/motorola_pgalloc.h     |  4 +-
 arch/m68k/include/asm/sun3_pgalloc.h         |  6 +-
 arch/microblaze/include/asm/pgalloc.h        | 19 +-----
 arch/microblaze/mm/pgtable.c                 |  3 +-
 arch/mips/include/asm/pgalloc.h              |  6 +-
 arch/nds32/include/asm/pgalloc.h             |  5 +-
 arch/nios2/include/asm/pgalloc.h             |  6 +-
 arch/openrisc/include/asm/pgalloc.h          |  5 +-
 arch/openrisc/mm/ioremap.c                   |  3 +-
 arch/parisc/include/asm/pgalloc.h            |  4 +-
 arch/powerpc/include/asm/book3s/32/pgalloc.h |  4 +-
 arch/powerpc/include/asm/book3s/64/pgalloc.h | 12 ++--
 arch/powerpc/include/asm/nohash/32/pgalloc.h |  4 +-
 arch/powerpc/include/asm/nohash/64/pgalloc.h |  6 +-
 arch/powerpc/mm/pgtable-book3s64.c           |  2 +-
 arch/powerpc/mm/pgtable_32.c                 |  4 +-
 arch/riscv/include/asm/pgalloc.h             |  6 +-
 arch/s390/include/asm/pgalloc.h              |  4 +-
 arch/sh/include/asm/pgalloc.h                |  6 +-
 arch/sparc/include/asm/pgalloc_32.h          |  5 +-
 arch/sparc/include/asm/pgalloc_64.h          |  6 +-
 arch/sparc/mm/init_64.c                      |  6 +-
 arch/sparc/mm/srmmu.c                        |  4 +-
 arch/um/include/asm/pgalloc.h                |  4 +-
 arch/um/kernel/mem.c                         |  4 +-
 arch/unicore32/include/asm/pgalloc.h         |  4 +-
 arch/x86/Kconfig                             |  1 +
 arch/x86/include/asm/pgalloc.h               |  4 +-
 arch/x86/mm/pgtable.c                        |  4 +-
 arch/xtensa/include/asm/pgalloc.h            |  8 +--
 include/linux/mm.h                           | 13 ++--
 mm/huge_memory.c                             |  8 +--
 mm/kasan/kasan_init.c                        |  2 +-
 mm/memory.c                                  | 17 +++---
 mm/migrate.c                                 |  2 +-
 mm/mremap.c                                  | 62 +++++++++++++++++++-
 mm/userfaultfd.c                             |  2 +-
 virt/kvm/arm/mmu.c                           |  2 +-
 46 files changed, 163 insertions(+), 147 deletions(-)

-- 
2.19.1.930.g4563a0d9d0-goog

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Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH -next 2/3] mm: speed up mremap by 20x on large regions (v4)
Date: Fri,  2 Nov 2018 21:00:40 -0700
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Approved: news@gmane.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/1349>

From: "Joel Fernandes (Google)" <joel@joelfernandes.org>

Android needs to mremap large regions of memory during memory management
related operations. The mremap system call can be really slow if THP is
not enabled. The bottleneck is move_page_tables, which is copying each
pte at a time, and can be really slow across a large map. Turning on THP
may not be a viable option, and is not for us. This patch speeds up the
performance for non-THP system by copying at the PMD level when possible.

The speed up is an order of magnitude on x86 (~20x). On a 1GB mremap,
the mremap completion times drops from 3.4-3.6 milliseconds to 144-160
microseconds.

Before:
Total mremap time for 1GB data: 3521942 nanoseconds.
Total mremap time for 1GB data: 3449229 nanoseconds.
Total mremap time for 1GB data: 3488230 nanoseconds.

After:
Total mremap time for 1GB data: 150279 nanoseconds.
Total mremap time for 1GB data: 144665 nanoseconds.
Total mremap time for 1GB data: 158708 nanoseconds.

Incase THP is enabled, the optimization is mostly skipped except in
certain situations.

Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---

Note that since the bug fix in [1], we now have to flush the TLB every
PMD move. The above numbers were obtained on x86 with a flush done every
move. For arm64, I previously encountered performance issues doing a
flush everytime we move, however Will Deacon says [2] the performance
should be better now with recent release. Until we can evaluate arm64, I
am dropping the HAVE_MOVE_PMD config enable patch for ARM64 for now. It
can be added back once we finish the performance evaluation. Also of
note is that the speed up on arm64 with this patch but without the TLB
flush every PMD move is around 500x.

[1] https://bugs.chromium.org/p/project-zero/issues/detail?id=1695
[2] https://www.mail-archive.com/linuxppc-dev@lists.ozlabs.org/msg140837.html

 arch/Kconfig |  5 +++++
 mm/mremap.c  | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 65 insertions(+)

diff --git a/arch/Kconfig b/arch/Kconfig
index e1e540ffa979..b70c952ac838 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -535,6 +535,11 @@ config HAVE_IRQ_TIME_ACCOUNTING
 	  Archs need to ensure they use a high enough resolution clock to
 	  support irq time accounting and then call enable_sched_clock_irqtime().
 
+config HAVE_MOVE_PMD
+	bool
+	help
+	  Archs that select this are able to move page tables at the PMD level.
+
 config HAVE_ARCH_TRANSPARENT_HUGEPAGE
 	bool
 
diff --git a/mm/mremap.c b/mm/mremap.c
index 7c9ab747f19d..7cf6b0943090 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -191,6 +191,50 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 		drop_rmap_locks(vma);
 }
 
+static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
+		  unsigned long new_addr, unsigned long old_end,
+		  pmd_t *old_pmd, pmd_t *new_pmd)
+{
+	spinlock_t *old_ptl, *new_ptl;
+	struct mm_struct *mm = vma->vm_mm;
+	pmd_t pmd;
+
+	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
+	    || old_end - old_addr < PMD_SIZE)
+		return false;
+
+	/*
+	 * The destination pmd shouldn't be established, free_pgtables()
+	 * should have release it.
+	 */
+	if (WARN_ON(!pmd_none(*new_pmd)))
+		return false;
+
+	/*
+	 * We don't have to worry about the ordering of src and dst
+	 * ptlocks because exclusive mmap_sem prevents deadlock.
+	 */
+	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
+	new_ptl = pmd_lockptr(mm, new_pmd);
+	if (new_ptl != old_ptl)
+		spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
+
+	/* Clear the pmd */
+	pmd = *old_pmd;
+	pmd_clear(old_pmd);
+
+	VM_BUG_ON(!pmd_none(*new_pmd));
+
+	/* Set the new pmd */
+	set_pmd_at(mm, new_addr, new_pmd, pmd);
+	flush_tlb_range(vma, old_addr, old_addr + PMD_SIZE);
+	if (new_ptl != old_ptl)
+		spin_unlock(new_ptl);
+	spin_unlock(old_ptl);
+
+	return true;
+}
+
 unsigned long move_page_tables(struct vm_area_struct *vma,
 		unsigned long old_addr, struct vm_area_struct *new_vma,
 		unsigned long new_addr, unsigned long len,
@@ -237,7 +281,23 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
 			split_huge_pmd(vma, old_pmd, old_addr);
 			if (pmd_trans_unstable(old_pmd))
 				continue;
+		} else if (extent == PMD_SIZE && IS_ENABLED(CONFIG_HAVE_MOVE_PMD)) {
+			/*
+			 * If the extent is PMD-sized, try to speed the move by
+			 * moving at the PMD level if possible.
+			 */
+			bool moved;
+
+			if (need_rmap_locks)
+				take_rmap_locks(vma);
+			moved = move_normal_pmd(vma, old_addr, new_addr,
+					old_end, old_pmd, new_pmd);
+			if (need_rmap_locks)
+				drop_rmap_locks(vma);
+			if (moved)
+				continue;
 		}
+
 		if (pte_alloc(new_vma->vm_mm, new_pmd))
 			break;
 		next = (new_addr + PMD_SIZE) & PMD_MASK;
-- 
2.19.1.930.g4563a0d9d0-goog

From - Thu Nov 08 21:42:24 2018
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From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH -next 1/3] mm: treewide: remove unused address argument from
 pte_alloc functions (v2)
Date: Fri,  2 Nov 2018 21:00:39 -0700
Lines: 1124
Approved: news@gmane.org
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Peter Zijlstra <peterz@infradead.org>,
 Catalin Marinas <catalin.marinas@arm.com>,
 Dave Hansen <dave.hansen@linux.intel.com>, Will Deacon <will.deacon@arm.com>,
 Michal Hocko <mhocko@kernel.org>, linux-mm@kvack.org, lokeshgidra@google.com,
 "Joel Fernandes \(Google\)" <joel@joelfernandes.org>,
 linux-riscv@lists.infradead.org, elfring@users.sourceforge.net,
 Jonas Bonn <jonas@southpole.se>, kvmarm@lists.cs.columbia.edu,
 dancol@google.com, Yoshinori Sato <ysato@users.sourceforge.jp>,
 sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org,
 linux-hexagon@vger.kernel.org, Helge Deller <deller@gmx.de>,
 "maintainer:X86 ARCHITECTURE 32-BIT AND 64-BIT" <x86@kernel.org>,
 hughd@google.com, "James E.J. Bottomley" <jejb@parisc-linux.org>,
 kasan-dev@googlegroups.com, anton.i
To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4685>

From: "Joel Fernandes (Google)" <joel@joelfernandes.org>

This series speeds up mremap(2) syscall by copying page tables at the
PMD level even for non-THP systems. There is concern that the extra
'address' argument that mremap passes to pte_alloc may do something
subtle architecture related in the future that may make the scheme not
work.  Also we find that there is no point in passing the 'address' to
pte_alloc since its unused. So this patch therefore removes this
argument tree-wide resulting in a nice negative diff as well. Also
ensuring along the way that the enabled architectures do not do anything
funky with 'address' argument that goes unnoticed by the optimization.

Build and boot tested on x86-64. Build tested on arm64.

The changes were obtained by applying the following Coccinelle script.
(thanks Julia for answering all Coccinelle questions!).
Following fix ups were done manually:
* Removal of address argument from  pte_fragment_alloc
* Removal of pte_alloc_one_fast definitions from m68k and microblaze.

// Options: --include-headers --no-includes
// Note: I split the 'identifier fn' line, so if you are manually
// running it, please unsplit it so it runs for you.

virtual patch

@pte_alloc_func_def depends on patch exists@
identifier E2;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
type T2;
@@

 fn(...
- , T2 E2
 )
 { ... }

@pte_alloc_func_proto_noarg depends on patch exists@
type T1, T2, T3, T4;
identifier fn =~ "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

(
- T3 fn(T1, T2);
+ T3 fn(T1);
|
- T3 fn(T1, T2, T4);
+ T3 fn(T1, T2);
)

@pte_alloc_func_proto depends on patch exists@
identifier E1, E2, E4;
type T1, T2, T3, T4;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

(
- T3 fn(T1 E1, T2 E2);
+ T3 fn(T1 E1);
|
- T3 fn(T1 E1, T2 E2, T4 E4);
+ T3 fn(T1 E1, T2 E2);
)

@pte_alloc_func_call depends on patch exists@
expression E2;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

 fn(...
-,  E2
 )

@pte_alloc_macro depends on patch exists@
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
identifier a, b, c;
expression e;
position p;
@@

(
- #define fn(a, b, c) e
+ #define fn(a, b) e
|
- #define fn(a, b) e
+ #define fn(a) e
)

Suggested-by: Kirill A. Shutemov <kirill@shutemov.name>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>

---
 arch/alpha/include/asm/pgalloc.h             |  6 +++---
 arch/arc/include/asm/pgalloc.h               |  5 ++---
 arch/arm/include/asm/pgalloc.h               |  4 ++--
 arch/arm64/include/asm/pgalloc.h             |  4 ++--
 arch/hexagon/include/asm/pgalloc.h           |  6 ++----
 arch/ia64/include/asm/pgalloc.h              |  5 ++---
 arch/m68k/include/asm/mcf_pgalloc.h          |  8 ++------
 arch/m68k/include/asm/motorola_pgalloc.h     |  4 ++--
 arch/m68k/include/asm/sun3_pgalloc.h         |  6 ++----
 arch/microblaze/include/asm/pgalloc.h        | 19 ++-----------------
 arch/microblaze/mm/pgtable.c                 |  3 +--
 arch/mips/include/asm/pgalloc.h              |  6 ++----
 arch/nds32/include/asm/pgalloc.h             |  5 ++---
 arch/nios2/include/asm/pgalloc.h             |  6 ++----
 arch/openrisc/include/asm/pgalloc.h          |  5 ++---
 arch/openrisc/mm/ioremap.c                   |  3 +--
 arch/parisc/include/asm/pgalloc.h            |  4 ++--
 arch/powerpc/include/asm/book3s/32/pgalloc.h |  4 ++--
 arch/powerpc/include/asm/book3s/64/pgalloc.h | 12 +++++-------
 arch/powerpc/include/asm/nohash/32/pgalloc.h |  4 ++--
 arch/powerpc/include/asm/nohash/64/pgalloc.h |  6 ++----
 arch/powerpc/mm/pgtable-book3s64.c           |  2 +-
 arch/powerpc/mm/pgtable_32.c                 |  4 ++--
 arch/riscv/include/asm/pgalloc.h             |  6 ++----
 arch/s390/include/asm/pgalloc.h              |  4 ++--
 arch/sh/include/asm/pgalloc.h                |  6 ++----
 arch/sparc/include/asm/pgalloc_32.h          |  5 ++---
 arch/sparc/include/asm/pgalloc_64.h          |  6 ++----
 arch/sparc/mm/init_64.c                      |  6 ++----
 arch/sparc/mm/srmmu.c                        |  4 ++--
 arch/um/include/asm/pgalloc.h                |  4 ++--
 arch/um/kernel/mem.c                         |  4 ++--
 arch/unicore32/include/asm/pgalloc.h         |  4 ++--
 arch/x86/include/asm/pgalloc.h               |  4 ++--
 arch/x86/mm/pgtable.c                        |  4 ++--
 arch/xtensa/include/asm/pgalloc.h            |  8 +++-----
 include/linux/mm.h                           | 13 ++++++-------
 mm/huge_memory.c                             |  8 ++++----
 mm/kasan/kasan_init.c                        |  2 +-
 mm/memory.c                                  | 17 ++++++++---------
 mm/migrate.c                                 |  2 +-
 mm/mremap.c                                  |  2 +-
 mm/userfaultfd.c                             |  2 +-
 virt/kvm/arm/mmu.c                           |  2 +-
 44 files changed, 97 insertions(+), 147 deletions(-)

diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
index ab3e3a8638fb..02f9f91bb4f0 100644
--- a/arch/alpha/include/asm/pgalloc.h
+++ b/arch/alpha/include/asm/pgalloc.h
@@ -52,7 +52,7 @@ pmd_free(struct mm_struct *mm, pmd_t *pmd)
 }
 
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
 	return pte;
@@ -65,9 +65,9 @@ pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pte_alloc_one(struct mm_struct *mm)
 {
-	pte_t *pte = pte_alloc_one_kernel(mm, address);
+	pte_t *pte = pte_alloc_one_kernel(mm);
 	struct page *page;
 
 	if (!pte)
diff --git a/arch/arc/include/asm/pgalloc.h b/arch/arc/include/asm/pgalloc.h
index 3749234b7419..9c9b5a5ebf2e 100644
--- a/arch/arc/include/asm/pgalloc.h
+++ b/arch/arc/include/asm/pgalloc.h
@@ -90,8 +90,7 @@ static inline int __get_order_pte(void)
 	return get_order(PTRS_PER_PTE * sizeof(pte_t));
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -102,7 +101,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pte_alloc_one(struct mm_struct *mm)
 {
 	pgtable_t pte_pg;
 	struct page *page;
diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
index 2d7344f0e208..17ab72f0cc4e 100644
--- a/arch/arm/include/asm/pgalloc.h
+++ b/arch/arm/include/asm/pgalloc.h
@@ -81,7 +81,7 @@ static inline void clean_pte_table(pte_t *pte)
  *  +------------+
  */
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -93,7 +93,7 @@ pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h
index 2e05bcd944c8..52fa47c73bf0 100644
--- a/arch/arm64/include/asm/pgalloc.h
+++ b/arch/arm64/include/asm/pgalloc.h
@@ -91,13 +91,13 @@ extern pgd_t *pgd_alloc(struct mm_struct *mm);
 extern void pgd_free(struct mm_struct *mm, pgd_t *pgdp);
 
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(PGALLOC_GFP);
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/hexagon/include/asm/pgalloc.h b/arch/hexagon/include/asm/pgalloc.h
index eeebf862c46c..d36183887b60 100644
--- a/arch/hexagon/include/asm/pgalloc.h
+++ b/arch/hexagon/include/asm/pgalloc.h
@@ -59,8 +59,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long) pgd);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-					 unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
@@ -75,8 +74,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 }
 
 /* _kernel variant gets to use a different allocator */
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	gfp_t flags =  GFP_KERNEL | __GFP_ZERO;
 	return (pte_t *) __get_free_page(flags);
diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
index 3ee5362f2661..c9e481023c25 100644
--- a/arch/ia64/include/asm/pgalloc.h
+++ b/arch/ia64/include/asm/pgalloc.h
@@ -83,7 +83,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
 	pmd_val(*pmd_entry) = __pa(pte);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	void *pg;
@@ -99,8 +99,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
 	return page;
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long addr)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return quicklist_alloc(0, GFP_KERNEL, NULL);
 }
diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h
index 12fe700632f4..4399d712f6db 100644
--- a/arch/m68k/include/asm/mcf_pgalloc.h
+++ b/arch/m68k/include/asm/mcf_pgalloc.h
@@ -12,8 +12,7 @@ extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 
 extern const char bad_pmd_string[];
 
-extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	unsigned long page = __get_free_page(GFP_DMA);
 
@@ -32,8 +31,6 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address)
 #define pmd_alloc_one_fast(mm, address) ({ BUG(); ((pmd_t *)1); })
 #define pmd_alloc_one(mm, address)      ({ BUG(); ((pmd_t *)2); })
 
-#define pte_alloc_one_fast(mm, addr) pte_alloc_one(mm, addr)
-
 #define pmd_populate(mm, pmd, page) (pmd_val(*pmd) = \
 	(unsigned long)(page_address(page)))
 
@@ -50,8 +47,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
 
 #define __pmd_free_tlb(tlb, pmd, address) do { } while (0)
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page = alloc_pages(GFP_DMA, 0);
 	pte_t *pte;
diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h
index 7859a86319cf..d04d9ba9b976 100644
--- a/arch/m68k/include/asm/motorola_pgalloc.h
+++ b/arch/m68k/include/asm/motorola_pgalloc.h
@@ -8,7 +8,7 @@
 extern pmd_t *get_pointer_table(void);
 extern int free_pointer_table(pmd_t *);
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -28,7 +28,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 	free_page((unsigned long) pte);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	pte_t *pte;
diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h
index 11485d38de4e..1456c5eecbd9 100644
--- a/arch/m68k/include/asm/sun3_pgalloc.h
+++ b/arch/m68k/include/asm/sun3_pgalloc.h
@@ -35,8 +35,7 @@ do {							\
 	tlb_remove_page((tlb), pte);			\
 } while (0)
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	unsigned long page = __get_free_page(GFP_KERNEL);
 
@@ -47,8 +46,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return (pte_t *) (page);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-					unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
         struct page *page = alloc_pages(GFP_KERNEL, 0);
 
diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
index 7c89390c0c13..f4cc9ffc449e 100644
--- a/arch/microblaze/include/asm/pgalloc.h
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -108,10 +108,9 @@ static inline void free_pgd_slow(pgd_t *pgd)
 #define pmd_alloc_one_fast(mm, address)	({ BUG(); ((pmd_t *)1); })
 #define pmd_alloc_one(mm, address)	({ BUG(); ((pmd_t *)2); })
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-		unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *ptepage;
 
@@ -132,20 +131,6 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 	return ptepage;
 }
 
-static inline pte_t *pte_alloc_one_fast(struct mm_struct *mm,
-		unsigned long address)
-{
-	unsigned long *ret;
-
-	ret = pte_quicklist;
-	if (ret != NULL) {
-		pte_quicklist = (unsigned long *)(*ret);
-		ret[0] = 0;
-		pgtable_cache_size--;
-	}
-	return (pte_t *)ret;
-}
-
 static inline void pte_free_fast(pte_t *pte)
 {
 	*(unsigned long **)pte = pte_quicklist;
diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c
index 7f525962cdfa..c2ce1e42b888 100644
--- a/arch/microblaze/mm/pgtable.c
+++ b/arch/microblaze/mm/pgtable.c
@@ -235,8 +235,7 @@ unsigned long iopa(unsigned long addr)
 	return pa;
 }
 
-__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-		unsigned long address)
+__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 	if (mem_init_done) {
diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
index 39b9f311c4ef..27808d9461f4 100644
--- a/arch/mips/include/asm/pgalloc.h
+++ b/arch/mips/include/asm/pgalloc.h
@@ -50,14 +50,12 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_pages((unsigned long)pgd, PGD_ORDER);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, PTE_ORDER);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/nds32/include/asm/pgalloc.h b/arch/nds32/include/asm/pgalloc.h
index 27448869131a..3c5fee5b5759 100644
--- a/arch/nds32/include/asm/pgalloc.h
+++ b/arch/nds32/include/asm/pgalloc.h
@@ -22,8 +22,7 @@ extern void pgd_free(struct mm_struct *mm, pgd_t * pgd);
 
 #define check_pgt_cache()		do { } while (0)
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long addr)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -34,7 +33,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return pte;
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	pgtable_t pte;
 
diff --git a/arch/nios2/include/asm/pgalloc.h b/arch/nios2/include/asm/pgalloc.h
index bb47d08c8ef7..3a149ead1207 100644
--- a/arch/nios2/include/asm/pgalloc.h
+++ b/arch/nios2/include/asm/pgalloc.h
@@ -37,8 +37,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_pages((unsigned long)pgd, PGD_ORDER);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -47,8 +46,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return pte;
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/openrisc/include/asm/pgalloc.h b/arch/openrisc/include/asm/pgalloc.h
index 8999b9226512..149c82ee4b8b 100644
--- a/arch/openrisc/include/asm/pgalloc.h
+++ b/arch/openrisc/include/asm/pgalloc.h
@@ -70,10 +70,9 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long)pgd);
 }
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-					 unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 	pte = alloc_pages(GFP_KERNEL, 0);
diff --git a/arch/openrisc/mm/ioremap.c b/arch/openrisc/mm/ioremap.c
index c9697529b3f0..270d1c9bc0d6 100644
--- a/arch/openrisc/mm/ioremap.c
+++ b/arch/openrisc/mm/ioremap.c
@@ -118,8 +118,7 @@ EXPORT_SYMBOL(iounmap);
  * the memblock infrastructure.
  */
 
-pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm,
-					 unsigned long address)
+pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index cf13275f7c6d..d05c678c77c4 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -122,7 +122,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
 #define pmd_pgtable(pmd) pmd_page(pmd)
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page = alloc_page(GFP_KERNEL|__GFP_ZERO);
 	if (!page)
@@ -135,7 +135,7 @@ pte_alloc_one(struct mm_struct *mm, unsigned long address)
 }
 
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
 	return pte;
diff --git a/arch/powerpc/include/asm/book3s/32/pgalloc.h b/arch/powerpc/include/asm/book3s/32/pgalloc.h
index 82e44b1a00ae..af9e13555d95 100644
--- a/arch/powerpc/include/asm/book3s/32/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/32/pgalloc.h
@@ -82,8 +82,8 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp,
 #define pmd_pgtable(pmd) pmd_page(pmd)
 #endif
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
-extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
+extern pgtable_t pte_alloc_one(struct mm_struct *mm);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h
index 391ed2c3b697..8f1d92e99fe5 100644
--- a/arch/powerpc/include/asm/book3s/64/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h
@@ -42,7 +42,7 @@ extern struct kmem_cache *pgtable_cache[];
 			pgtable_cache[(shift) - 1];	\
 		})
 
-extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int);
+extern pte_t *pte_fragment_alloc(struct mm_struct *, int);
 extern pmd_t *pmd_fragment_alloc(struct mm_struct *, unsigned long);
 extern void pte_fragment_free(unsigned long *, int);
 extern void pmd_fragment_free(unsigned long *);
@@ -192,16 +192,14 @@ static inline pgtable_t pmd_pgtable(pmd_t pmd)
 	return (pgtable_t)pmd_page_vaddr(pmd);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
-	return (pte_t *)pte_fragment_alloc(mm, address, 1);
+	return (pte_t *)pte_fragment_alloc(mm, 1);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-				      unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
-	return (pgtable_t)pte_fragment_alloc(mm, address, 0);
+	return (pgtable_t)pte_fragment_alloc(mm, 0);
 }
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
diff --git a/arch/powerpc/include/asm/nohash/32/pgalloc.h b/arch/powerpc/include/asm/nohash/32/pgalloc.h
index 8825953c225b..16623f53f0d4 100644
--- a/arch/powerpc/include/asm/nohash/32/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/32/pgalloc.h
@@ -83,8 +83,8 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp,
 #define pmd_pgtable(pmd) pmd_page(pmd)
 #endif
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
-extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
+extern pgtable_t pte_alloc_one(struct mm_struct *mm);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
diff --git a/arch/powerpc/include/asm/nohash/64/pgalloc.h b/arch/powerpc/include/asm/nohash/64/pgalloc.h
index e2d62d033708..2e7e0230edf4 100644
--- a/arch/powerpc/include/asm/nohash/64/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/64/pgalloc.h
@@ -96,14 +96,12 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 }
 
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-				      unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	pte_t *pte;
diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c
index 9f93c9f985c5..6f9d434b0a4c 100644
--- a/arch/powerpc/mm/pgtable-book3s64.c
+++ b/arch/powerpc/mm/pgtable-book3s64.c
@@ -384,7 +384,7 @@ static pte_t *__alloc_for_ptecache(struct mm_struct *mm, int kernel)
 	return (pte_t *)ret;
 }
 
-pte_t *pte_fragment_alloc(struct mm_struct *mm, unsigned long vmaddr, int kernel)
+pte_t *pte_fragment_alloc(struct mm_struct *mm, int kernel)
 {
 	pte_t *pte;
 
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index bda3c6f1bd32..1d8e2d98db98 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -43,7 +43,7 @@ EXPORT_SYMBOL(ioremap_bot);	/* aka VMALLOC_END */
 
 extern char etext[], _stext[], _sinittext[], _einittext[];
 
-__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -57,7 +57,7 @@ __ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 	return pte;
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *ptepage;
 
diff --git a/arch/riscv/include/asm/pgalloc.h b/arch/riscv/include/asm/pgalloc.h
index a79ed5faff3a..94043cf83c90 100644
--- a/arch/riscv/include/asm/pgalloc.h
+++ b/arch/riscv/include/asm/pgalloc.h
@@ -82,15 +82,13 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 
 #endif /* __PAGETABLE_PMD_FOLDED */
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(
 		GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_ZERO);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index f0f9bcf94c03..ce2ca8cbd2ec 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -139,8 +139,8 @@ static inline void pmd_populate(struct mm_struct *mm,
 /*
  * page table entry allocation/free routines.
  */
-#define pte_alloc_one_kernel(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
-#define pte_alloc_one(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
+#define pte_alloc_one_kernel(mm) ((pte_t *)page_table_alloc(mm))
+#define pte_alloc_one(mm) ((pte_t *)page_table_alloc(mm))
 
 #define pte_free_kernel(mm, pte) page_table_free(mm, (unsigned long *) pte)
 #define pte_free(mm, pte) page_table_free(mm, (unsigned long *) pte)
diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h
index ed053a359ab7..8ad73cb31121 100644
--- a/arch/sh/include/asm/pgalloc.h
+++ b/arch/sh/include/asm/pgalloc.h
@@ -32,14 +32,12 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
 /*
  * Allocate and free page tables.
  */
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return quicklist_alloc(QUICK_PT, GFP_KERNEL, NULL);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-					unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	void *pg;
diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
index 90459481c6c7..282be50a4adf 100644
--- a/arch/sparc/include/asm/pgalloc_32.h
+++ b/arch/sparc/include/asm/pgalloc_32.h
@@ -58,10 +58,9 @@ void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
 void pmd_set(pmd_t *pmdp, pte_t *ptep);
 #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
+pgtable_t pte_alloc_one(struct mm_struct *mm);
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
 }
diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
index 874632f34f62..48abccba4991 100644
--- a/arch/sparc/include/asm/pgalloc_64.h
+++ b/arch/sparc/include/asm/pgalloc_64.h
@@ -60,10 +60,8 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 	kmem_cache_free(pgtable_cache, pmd);
 }
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-			    unsigned long address);
-pgtable_t pte_alloc_one(struct mm_struct *mm,
-			unsigned long address);
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
+pgtable_t pte_alloc_one(struct mm_struct *mm);
 void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
 void pte_free(struct mm_struct *mm, pgtable_t ptepage);
 
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 3c8aac21f426..b4221d3727d0 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -2925,8 +2925,7 @@ void __flush_tlb_all(void)
 			     : : "r" (pstate));
 }
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-			    unsigned long address)
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO);
 	pte_t *pte = NULL;
@@ -2937,8 +2936,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return pte;
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm,
-			unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO);
 	if (!page)
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index a6142c5abf61..b609362e846f 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -364,12 +364,12 @@ pgd_t *get_pgd_fast(void)
  * Alignments up to the page size are the same for physical and virtual
  * addresses of the nocache area.
  */
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	unsigned long pte;
 	struct page *page;
 
-	if ((pte = (unsigned long)pte_alloc_one_kernel(mm, address)) == 0)
+	if ((pte = (unsigned long)pte_alloc_one_kernel(mm)) == 0)
 		return NULL;
 	page = pfn_to_page(__nocache_pa(pte) >> PAGE_SHIFT);
 	if (!pgtable_page_ctor(page)) {
diff --git a/arch/um/include/asm/pgalloc.h b/arch/um/include/asm/pgalloc.h
index bf90b2aa2002..99eb5682792a 100644
--- a/arch/um/include/asm/pgalloc.h
+++ b/arch/um/include/asm/pgalloc.h
@@ -25,8 +25,8 @@
 extern pgd_t *pgd_alloc(struct mm_struct *);
 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
-extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *);
+extern pgtable_t pte_alloc_one(struct mm_struct *);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 1067469ba2ea..e494c7719b24 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -199,7 +199,7 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long) pgd);
 }
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -207,7 +207,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 	return pte;
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/unicore32/include/asm/pgalloc.h b/arch/unicore32/include/asm/pgalloc.h
index f0fdb268f8f2..7cceabecf4e3 100644
--- a/arch/unicore32/include/asm/pgalloc.h
+++ b/arch/unicore32/include/asm/pgalloc.h
@@ -34,7 +34,7 @@ extern void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd);
  * Allocate one PTE table.
  */
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -46,7 +46,7 @@ pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
index ec7f43327033..f6861b700f5e 100644
--- a/arch/x86/include/asm/pgalloc.h
+++ b/arch/x86/include/asm/pgalloc.h
@@ -47,8 +47,8 @@ extern gfp_t __userpte_alloc_gfp;
 extern pgd_t *pgd_alloc(struct mm_struct *);
 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
-extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *);
+extern pgtable_t pte_alloc_one(struct mm_struct *);
 
 /* Should really implement gc for free page table pages. This could be
    done with a reference count in struct page. */
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 59274e2c1ac4..27f63a74b45d 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -23,12 +23,12 @@ EXPORT_SYMBOL(physical_mask);
 
 gfp_t __userpte_alloc_gfp = PGALLOC_GFP | PGALLOC_USER_GFP;
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(PGALLOC_GFP & ~__GFP_ACCOUNT);
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/xtensa/include/asm/pgalloc.h b/arch/xtensa/include/asm/pgalloc.h
index 1065bc8bcae5..b3b388ff2f01 100644
--- a/arch/xtensa/include/asm/pgalloc.h
+++ b/arch/xtensa/include/asm/pgalloc.h
@@ -38,8 +38,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long)pgd);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					 unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *ptep;
 	int i;
@@ -52,13 +51,12 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return ptep;
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-					unsigned long addr)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	pte_t *pte;
 	struct page *page;
 
-	pte = pte_alloc_one_kernel(mm, addr);
+	pte = pte_alloc_one_kernel(mm);
 	if (!pte)
 		return NULL;
 	page = virt_to_page(pte);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index fcf9cc9d535f..8151c00df8c1 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1809,8 +1809,8 @@ static inline void mm_inc_nr_ptes(struct mm_struct *mm) {}
 static inline void mm_dec_nr_ptes(struct mm_struct *mm) {}
 #endif
 
-int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address);
-int __pte_alloc_kernel(pmd_t *pmd, unsigned long address);
+int __pte_alloc(struct mm_struct *mm, pmd_t *pmd);
+int __pte_alloc_kernel(pmd_t *pmd);
 
 /*
  * The following ifdef needed to get the 4level-fixup.h header to work.
@@ -1948,18 +1948,17 @@ static inline void pgtable_page_dtor(struct page *page)
 	pte_unmap(pte);					\
 } while (0)
 
-#define pte_alloc(mm, pmd, address)			\
-	(unlikely(pmd_none(*(pmd))) && __pte_alloc(mm, pmd, address))
+#define pte_alloc(mm, pmd) (unlikely(pmd_none(*(pmd))) && __pte_alloc(mm, pmd))
 
 #define pte_alloc_map(mm, pmd, address)			\
-	(pte_alloc(mm, pmd, address) ? NULL : pte_offset_map(pmd, address))
+	(pte_alloc(mm, pmd) ? NULL : pte_offset_map(pmd, address))
 
 #define pte_alloc_map_lock(mm, pmd, address, ptlp)	\
-	(pte_alloc(mm, pmd, address) ?			\
+	(pte_alloc(mm, pmd) ?			\
 		 NULL : pte_offset_map_lock(mm, pmd, address, ptlp))
 
 #define pte_alloc_kernel(pmd, address)			\
-	((unlikely(pmd_none(*(pmd))) && __pte_alloc_kernel(pmd, address))? \
+	((unlikely(pmd_none(*(pmd))) && __pte_alloc_kernel(pmd))? \
 		NULL: pte_offset_kernel(pmd, address))
 
 #if USE_SPLIT_PMD_PTLOCKS
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 4e4ef8fa479d..2315fb7ecac3 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -558,7 +558,7 @@ static vm_fault_t __do_huge_pmd_anonymous_page(struct vm_fault *vmf,
 		return VM_FAULT_FALLBACK;
 	}
 
-	pgtable = pte_alloc_one(vma->vm_mm, haddr);
+	pgtable = pte_alloc_one(vma->vm_mm);
 	if (unlikely(!pgtable)) {
 		ret = VM_FAULT_OOM;
 		goto release;
@@ -683,7 +683,7 @@ vm_fault_t do_huge_pmd_anonymous_page(struct vm_fault *vmf)
 		struct page *zero_page;
 		bool set;
 		vm_fault_t ret;
-		pgtable = pte_alloc_one(vma->vm_mm, haddr);
+		pgtable = pte_alloc_one(vma->vm_mm);
 		if (unlikely(!pgtable))
 			return VM_FAULT_OOM;
 		zero_page = mm_get_huge_zero_page(vma->vm_mm);
@@ -772,7 +772,7 @@ vm_fault_t vmf_insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr,
 		return VM_FAULT_SIGBUS;
 
 	if (arch_needs_pgtable_deposit()) {
-		pgtable = pte_alloc_one(vma->vm_mm, addr);
+		pgtable = pte_alloc_one(vma->vm_mm);
 		if (!pgtable)
 			return VM_FAULT_OOM;
 	}
@@ -908,7 +908,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	if (!vma_is_anonymous(vma))
 		return 0;
 
-	pgtable = pte_alloc_one(dst_mm, addr);
+	pgtable = pte_alloc_one(dst_mm);
 	if (unlikely(!pgtable))
 		goto out;
 
diff --git a/mm/kasan/kasan_init.c b/mm/kasan/kasan_init.c
index c7550eb65922..5edb8b29a827 100644
--- a/mm/kasan/kasan_init.c
+++ b/mm/kasan/kasan_init.c
@@ -120,7 +120,7 @@ static int __ref zero_pmd_populate(pud_t *pud, unsigned long addr,
 			pte_t *p;
 
 			if (slab_is_available())
-				p = pte_alloc_one_kernel(&init_mm, addr);
+				p = pte_alloc_one_kernel(&init_mm);
 			else
 				p = early_alloc(PAGE_SIZE, NUMA_NO_NODE);
 			if (!p)
diff --git a/mm/memory.c b/mm/memory.c
index 4ad2d293ddc2..a9f2eb5bd1d9 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -400,10 +400,10 @@ void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *vma,
 	}
 }
 
-int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
+int __pte_alloc(struct mm_struct *mm, pmd_t *pmd)
 {
 	spinlock_t *ptl;
-	pgtable_t new = pte_alloc_one(mm, address);
+	pgtable_t new = pte_alloc_one(mm);
 	if (!new)
 		return -ENOMEM;
 
@@ -434,9 +434,9 @@ int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
 	return 0;
 }
 
-int __pte_alloc_kernel(pmd_t *pmd, unsigned long address)
+int __pte_alloc_kernel(pmd_t *pmd)
 {
-	pte_t *new = pte_alloc_one_kernel(&init_mm, address);
+	pte_t *new = pte_alloc_one_kernel(&init_mm);
 	if (!new)
 		return -ENOMEM;
 
@@ -2895,7 +2895,7 @@ static vm_fault_t do_anonymous_page(struct vm_fault *vmf)
 	 *
 	 * Here we only have down_read(mmap_sem).
 	 */
-	if (pte_alloc(vma->vm_mm, vmf->pmd, vmf->address))
+	if (pte_alloc(vma->vm_mm, vmf->pmd))
 		return VM_FAULT_OOM;
 
 	/* See the comment in pte_alloc_one_map() */
@@ -3042,7 +3042,7 @@ static vm_fault_t pte_alloc_one_map(struct vm_fault *vmf)
 		pmd_populate(vma->vm_mm, vmf->pmd, vmf->prealloc_pte);
 		spin_unlock(vmf->ptl);
 		vmf->prealloc_pte = NULL;
-	} else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd, vmf->address))) {
+	} else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd))) {
 		return VM_FAULT_OOM;
 	}
 map_pte:
@@ -3121,7 +3121,7 @@ static vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page)
 	 * related to pte entry. Use the preallocated table for that.
 	 */
 	if (arch_needs_pgtable_deposit() && !vmf->prealloc_pte) {
-		vmf->prealloc_pte = pte_alloc_one(vma->vm_mm, vmf->address);
+		vmf->prealloc_pte = pte_alloc_one(vma->vm_mm);
 		if (!vmf->prealloc_pte)
 			return VM_FAULT_OOM;
 		smp_wmb(); /* See comment in __pte_alloc() */
@@ -3359,8 +3359,7 @@ static vm_fault_t do_fault_around(struct vm_fault *vmf)
 			start_pgoff + nr_pages - 1);
 
 	if (pmd_none(*vmf->pmd)) {
-		vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm,
-						  vmf->address);
+		vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm);
 		if (!vmf->prealloc_pte)
 			goto out;
 		smp_wmb(); /* See comment in __pte_alloc() */
diff --git a/mm/migrate.c b/mm/migrate.c
index f7e4bfdc13b7..1777a9327dbf 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -2599,7 +2599,7 @@ static void migrate_vma_insert_page(struct migrate_vma *migrate,
 	 *
 	 * Here we only have down_read(mmap_sem).
 	 */
-	if (pte_alloc(mm, pmdp, addr))
+	if (pte_alloc(mm, pmdp))
 		goto abort;
 
 	/* See the comment in pte_alloc_one_map() */
diff --git a/mm/mremap.c b/mm/mremap.c
index 7f9f9180e401..7c9ab747f19d 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -238,7 +238,7 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
 			if (pmd_trans_unstable(old_pmd))
 				continue;
 		}
-		if (pte_alloc(new_vma->vm_mm, new_pmd, new_addr))
+		if (pte_alloc(new_vma->vm_mm, new_pmd))
 			break;
 		next = (new_addr + PMD_SIZE) & PMD_MASK;
 		if (extent > next - new_addr)
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 5029f241908f..f05c8bc38ca5 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -513,7 +513,7 @@ static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,
 			break;
 		}
 		if (unlikely(pmd_none(dst_pmdval)) &&
-		    unlikely(__pte_alloc(dst_mm, dst_pmd, dst_addr))) {
+		    unlikely(__pte_alloc(dst_mm, dst_pmd))) {
 			err = -ENOMEM;
 			break;
 		}
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index 5eca48bdb1a6..0a36b1708b76 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -628,7 +628,7 @@ static int create_hyp_pmd_mappings(pud_t *pud, unsigned long start,
 		BUG_ON(pmd_sect(*pmd));
 
 		if (pmd_none(*pmd)) {
-			pte = pte_alloc_one_kernel(NULL, addr);
+			pte = pte_alloc_one_kernel(NULL);
 			if (!pte) {
 				kvm_err("Cannot allocate Hyp pte\n");
 				return -ENOMEM;
-- 
2.19.1.930.g4563a0d9d0-goog

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Cc: Joel Fernandes <joelaf@google.com>, linux-mips@linux-mips.org,
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Subject: Re: [PATCH -next 0/3] Add support for fast mremap
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel.janitors,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH -next v2 1/3] mm: treewide: remove unused address argument
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Date: Sat, 3 Nov 2018 13:51:20 +0100
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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To: Joel Fernandes <joel@joelfernandes.org>, kernel-janitors@vger.kernel.org
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From - Thu Nov 08 21:42:24 2018
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From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH -next 0/3] Add support for fast mremap
Date: Sat, 3 Nov 2018 08:20:06 -0700
Lines: 81
Approved: news@gmane.org
Message-ID: <20181103152006.GB259637@google.com>
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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To: Anton Ivanov <anton.ivanov@kot-begemot.co.uk>
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Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH -next 2/3] mm: speed up mremap by 20x on large regions (v4)
Date: Sun, 4 Nov 2018 00:45:41 +0800
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--2fHTh5uZTiUOsy+g
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Hi Joel,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20181102]

url:    https://github.com/0day-ci/linux/commits/Joel-Fernandes/Add-support-for-fast-mremap/20181103-224908
config: xtensa-allmodconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 8.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=8.1.0 make.cross ARCH=xtensa 

All errors (new ones prefixed by >>):

   mm/mremap.c: In function 'move_normal_pmd':
>> mm/mremap.c:229:2: error: implicit declaration of function 'set_pmd_at'; did you mean 'set_pte_at'? [-Werror=implicit-function-declaration]
     set_pmd_at(mm, new_addr, new_pmd, pmd);
     ^~~~~~~~~~
     set_pte_at
   cc1: some warnings being treated as errors

vim +229 mm/mremap.c

   193	
   194	static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
   195			  unsigned long new_addr, unsigned long old_end,
   196			  pmd_t *old_pmd, pmd_t *new_pmd)
   197	{
   198		spinlock_t *old_ptl, *new_ptl;
   199		struct mm_struct *mm = vma->vm_mm;
   200		pmd_t pmd;
   201	
   202		if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
   203		    || old_end - old_addr < PMD_SIZE)
   204			return false;
   205	
   206		/*
   207		 * The destination pmd shouldn't be established, free_pgtables()
   208		 * should have release it.
   209		 */
   210		if (WARN_ON(!pmd_none(*new_pmd)))
   211			return false;
   212	
   213		/*
   214		 * We don't have to worry about the ordering of src and dst
   215		 * ptlocks because exclusive mmap_sem prevents deadlock.
   216		 */
   217		old_ptl = pmd_lock(vma->vm_mm, old_pmd);
   218		new_ptl = pmd_lockptr(mm, new_pmd);
   219		if (new_ptl != old_ptl)
   220			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
   221	
   222		/* Clear the pmd */
   223		pmd = *old_pmd;
   224		pmd_clear(old_pmd);
   225	
   226		VM_BUG_ON(!pmd_none(*new_pmd));
   227	
   228		/* Set the new pmd */
 > 229		set_pmd_at(mm, new_addr, new_pmd, pmd);
   230		flush_tlb_range(vma, old_addr, old_addr + PMD_SIZE);
   231		if (new_ptl != old_ptl)
   232			spin_unlock(new_ptl);
   233		spin_unlock(old_ptl);
   234	
   235		return true;
   236	}
   237	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Subject: Re: [PATCH -next 2/3] mm: speed up mremap by 20x on large regions (v4)
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
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To: Joel Fernandes <joel@joelfernandes.org>
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Hi Joel,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20181102]

url:    https://github.com/0day-ci/linux/commits/Joel-Fernandes/Add-support-for-fast-mremap/20181103-224908
config: openrisc-or1ksim_defconfig (attached as .config)
compiler: or1k-linux-gcc (GCC) 6.0.0 20160327 (experimental)
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=openrisc 

All errors (new ones prefixed by >>):

   mm/mremap.c: In function 'move_normal_pmd':
>> mm/mremap.c:229:2: error: implicit declaration of function 'set_pmd_at' [-Werror=implicit-function-declaration]
     set_pmd_at(mm, new_addr, new_pmd, pmd);
     ^~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/set_pmd_at +229 mm/mremap.c

   193	
   194	static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
   195			  unsigned long new_addr, unsigned long old_end,
   196			  pmd_t *old_pmd, pmd_t *new_pmd)
   197	{
   198		spinlock_t *old_ptl, *new_ptl;
   199		struct mm_struct *mm = vma->vm_mm;
   200		pmd_t pmd;
   201	
   202		if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
   203		    || old_end - old_addr < PMD_SIZE)
   204			return false;
   205	
   206		/*
   207		 * The destination pmd shouldn't be established, free_pgtables()
   208		 * should have release it.
   209		 */
   210		if (WARN_ON(!pmd_none(*new_pmd)))
   211			return false;
   212	
   213		/*
   214		 * We don't have to worry about the ordering of src and dst
   215		 * ptlocks because exclusive mmap_sem prevents deadlock.
   216		 */
   217		old_ptl = pmd_lock(vma->vm_mm, old_pmd);
   218		new_ptl = pmd_lockptr(mm, new_pmd);
   219		if (new_ptl != old_ptl)
   220			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
   221	
   222		/* Clear the pmd */
   223		pmd = *old_pmd;
   224		pmd_clear(old_pmd);
   225	
   226		VM_BUG_ON(!pmd_none(*new_pmd));
   227	
   228		/* Set the new pmd */
 > 229		set_pmd_at(mm, new_addr, new_pmd, pmd);
   230		flush_tlb_range(vma, old_addr, old_addr + PMD_SIZE);
   231		if (new_ptl != old_ptl)
   232			spin_unlock(new_ptl);
   233		spin_unlock(old_ptl);
   234	
   235		return true;
   236	}
   237	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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From - Thu Nov 08 21:42:24 2018
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From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH -next 0/3] Add support for fast mremap
Date: Sat, 3 Nov 2018 11:32:08 -0700
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From: William Kucharski <william.kucharski@oracle.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH -next 0/3] Add support for fast mremap
Date: Sun, 4 Nov 2018 00:56:48 -0600
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Cc: linux-mips@linux-mips.org, linux-m68k@vger.kernel.org,
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To: Joel Fernandes <joel@joelfernandes.org>
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> On Nov 3, 2018, at 12:32 PM, Joel Fernandes <joel@joelfernandes.org> wrote:
> 
> Looks like more architectures don't define set_pmd_at. I am thinking the
> easiest way forward is to just do the following, instead of defining
> set_pmd_at for every architecture that doesn't care about it. Thoughts?
> 
> diff --git a/mm/mremap.c b/mm/mremap.c
> index 7cf6b0943090..31ad64dcdae6 100644
> --- a/mm/mremap.c
> +++ b/mm/mremap.c
> @@ -281,7 +281,8 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
> 			split_huge_pmd(vma, old_pmd, old_addr);
> 			if (pmd_trans_unstable(old_pmd))
> 				continue;
> -		} else if (extent == PMD_SIZE && IS_ENABLED(CONFIG_HAVE_MOVE_PMD)) {
> +		} else if (extent == PMD_SIZE) {
> +#ifdef CONFIG_HAVE_MOVE_PMD
> 			/*
> 			 * If the extent is PMD-sized, try to speed the move by
> 			 * moving at the PMD level if possible.
> @@ -296,6 +297,7 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
> 				drop_rmap_locks(vma);
> 			if (moved)
> 				continue;
> +#endif
> 		}
> 
> 		if (pte_alloc(new_vma->vm_mm, new_pmd))
> 

That seems reasonable as there are going to be a lot of architectures that never have
mappings at the PMD level.

Have you thought about what might be needed to extend this paradigm to be able to
perform remaps at the PUD level, given many architectures already support PUD-mapped
pages?

    William Kucharski

From - Thu Nov 08 21:42:25 2018
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From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.ports.mips.general,gmane.linux.ports.m68k,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.linux.ports.riscv,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.parisc,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: Re: [PATCH -next 0/3] Add support for fast mremap
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Cc: linux-mips@linux-mips.org, linux-m68k@vger.kernel.org,
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 Peter Zijlstra <peterz@infradead.org>,
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To: William Kucharski <william.kucharski@oracle.com>
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On Sun, Nov 04, 2018 at 12:56:48AM -0600, William Kucharski wrote:
> 
> 
> > On Nov 3, 2018, at 12:32 PM, Joel Fernandes <joel@joelfernandes.org> wrote:
> > 
> > Looks like more architectures don't define set_pmd_at. I am thinking the
> > easiest way forward is to just do the following, instead of defining
> > set_pmd_at for every architecture that doesn't care about it. Thoughts?
> > 
> > diff --git a/mm/mremap.c b/mm/mremap.c
> > index 7cf6b0943090..31ad64dcdae6 100644
> > --- a/mm/mremap.c
> > +++ b/mm/mremap.c
> > @@ -281,7 +281,8 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
> > 			split_huge_pmd(vma, old_pmd, old_addr);
> > 			if (pmd_trans_unstable(old_pmd))
> > 				continue;
> > -		} else if (extent == PMD_SIZE && IS_ENABLED(CONFIG_HAVE_MOVE_PMD)) {
> > +		} else if (extent == PMD_SIZE) {
> > +#ifdef CONFIG_HAVE_MOVE_PMD
> > 			/*
> > 			 * If the extent is PMD-sized, try to speed the move by
> > 			 * moving at the PMD level if possible.
> > @@ -296,6 +297,7 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
> > 				drop_rmap_locks(vma);
> > 			if (moved)
> > 				continue;
> > +#endif
> > 		}
> > 
> > 		if (pte_alloc(new_vma->vm_mm, new_pmd))
> > 
> 
> That seems reasonable as there are going to be a lot of architectures that never have
> mappings at the PMD level.

Ok, I will do it like this and resend.

> Have you thought about what might be needed to extend this paradigm to be able to
> perform remaps at the PUD level, given many architectures already support PUD-mapped
> pages?
> 

I have thought about this. I believe it is doable in the future. Off the top
I don't see an issue doing it, and it will also reduce the number of flushes.

thanks,

- Joel

From - Thu Nov 08 21:42:25 2018
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From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.riscv,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH -next-akpm 0/3] Add support for fast mremap
Date: Thu,  8 Nov 2018 10:11:58 -0800
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Cc: Joel Fernandes <joelaf@google.com>, linux-mips@linux-mips.org,
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 linux-sh@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
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To: linux-kernel@vger.kernel.org
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Hi,
Here is the "fast mremap" series. This just a repost with Kirill's Acked-bys
added and William's Reviewed-by added. Also fixed a UML build error reported
last week. I would like this to be considered for linux -next. The performance
numbers in the series are for testing on x86. The config enablement patch for
arm64 will be posted in the future after testing (see notes below).

List of patches in series:

(1) mm: select HAVE_MOVE_PMD in x86 for faster mremap

(2) mm: speed up mremap by 20x on large regions (v5)
v1->v2: Added support for per-arch enablement (Kirill Shutemov)
v2->v3: Updated commit message to state the optimization may also
	run for non-thp type of systems (Daniel Col).
v3->v4: Remove useless pmd_lock check (Kirill Shutemov)
	Rebased ontop of Linus's master, updated perf results based
        on x86 testing. Added Kirill's Acks.
v4->v5: Added William's Reviewed-by. Fixed arch/um build error
	due to set_pmd_at not defined. Rebased on linux-next/akpm.

(3) mm: treewide: remove unused address argument from pte_alloc functions (v2)
v1->v2: fix arch/um/ prototype which was missed in v1 (Anton Ivanov)
        update changelog with manual fixups for m68k and microblaze.

not included - (4) mm: select HAVE_MOVE_PMD in arm64 for faster mremap
    This patch is dropped since last posting pending further performance
    testing on arm64 with new TLB gather updates. See notes in patch
    titled "mm: speed up mremap by 500x on large regions" for more
    details.

Joel Fernandes (Google) (3):
mm: treewide: remove unused address argument from pte_alloc functions
(v2)
mm: speed up mremap by 20x on large regions (v5)
mm: select HAVE_MOVE_PMD in x86 for faster mremap

arch/Kconfig                                 |  5 ++
arch/alpha/include/asm/pgalloc.h             |  6 +-
arch/arc/include/asm/pgalloc.h               |  5 +-
arch/arm/include/asm/pgalloc.h               |  4 +-
arch/arm64/include/asm/pgalloc.h             |  4 +-
arch/hexagon/include/asm/pgalloc.h           |  6 +-
arch/ia64/include/asm/pgalloc.h              |  5 +-
arch/m68k/include/asm/mcf_pgalloc.h          |  8 +--
arch/m68k/include/asm/motorola_pgalloc.h     |  4 +-
arch/m68k/include/asm/sun3_pgalloc.h         |  6 +-
arch/microblaze/include/asm/pgalloc.h        | 19 +-----
arch/microblaze/mm/pgtable.c                 |  3 +-
arch/mips/include/asm/pgalloc.h              |  6 +-
arch/nds32/include/asm/pgalloc.h             |  5 +-
arch/nios2/include/asm/pgalloc.h             |  6 +-
arch/openrisc/include/asm/pgalloc.h          |  5 +-
arch/openrisc/mm/ioremap.c                   |  3 +-
arch/parisc/include/asm/pgalloc.h            |  4 +-
arch/powerpc/include/asm/book3s/32/pgalloc.h |  4 +-
arch/powerpc/include/asm/book3s/64/pgalloc.h | 12 ++--
arch/powerpc/include/asm/nohash/32/pgalloc.h |  4 +-
arch/powerpc/include/asm/nohash/64/pgalloc.h |  6 +-
arch/powerpc/mm/pgtable-book3s64.c           |  2 +-
arch/powerpc/mm/pgtable_32.c                 |  4 +-
arch/riscv/include/asm/pgalloc.h             |  6 +-
arch/s390/include/asm/pgalloc.h              |  4 +-
arch/sh/include/asm/pgalloc.h                |  6 +-
arch/sparc/include/asm/pgalloc_32.h          |  5 +-
arch/sparc/include/asm/pgalloc_64.h          |  6 +-
arch/sparc/mm/init_64.c                      |  6 +-
arch/sparc/mm/srmmu.c                        |  4 +-
arch/um/include/asm/pgalloc.h                |  4 +-
arch/um/kernel/mem.c                         |  4 +-
arch/unicore32/include/asm/pgalloc.h         |  4 +-
arch/x86/Kconfig                             |  1 +
arch/x86/include/asm/pgalloc.h               |  4 +-
arch/x86/mm/pgtable.c                        |  4 +-
arch/xtensa/include/asm/pgalloc.h            |  8 +--
include/linux/mm.h                           | 13 ++--
mm/huge_memory.c                             |  8 +--
mm/kasan/kasan_init.c                        |  2 +-
mm/memory.c                                  | 17 +++---
mm/migrate.c                                 |  2 +-
mm/mremap.c                                  | 64 +++++++++++++++++++-
mm/userfaultfd.c                             |  2 +-
virt/kvm/arm/mmu.c                           |  2 +-
46 files changed, 165 insertions(+), 147 deletions(-)

--
2.19.1.930.g4563a0d9d0-goog

From - Thu Nov 08 21:42:25 2018
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From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.ports.riscv,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.parisc,gmane.linux.kernel.mm,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH -next-akpm 2/3] mm: speed up mremap by 20x on large regions
 (v5)
Date: Thu,  8 Nov 2018 10:12:00 -0800
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Peter Zijlstra <peterz@infradead.org>,
 Catalin Marinas <catalin.marinas@arm.com>,
 Dave Hansen <dave.hansen@linux.intel.com>, Will Deacon <will.deacon@arm.com>,
 Michal Hocko <mhocko@kernel.org>,
 William Kucharski <william.kucharski@oracle.com>, lokeshgidra@google.com,
 "Joel Fernandes \(Google\)" <joel@joelfernandes.org>,
 linux-riscv@lists.infradead.org, anton.ivanov@kot-begemot.co.uk,
 Jonas Bonn <jonas@southpole.se>, linux-s390@vger.kernel.org, dancol@google.com,
 Yoshinori Sato <ysato@users.sourceforge.jp>, sparclinux@vger.kernel.org,
 linux-xtensa@linux-xtensa.org, linux-hexagon@vger.kernel.org,
 Helge Deller <deller@gmx.de>,
 "maintainer:X86 ARCHITECTURE 32-BIT AND 64-BIT" <x86@kernel.org>,
 hughd@google.com, "James E.J. Bottomley" <jejb@parisc-linux.org>,
 kasan
To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.kernel.arc/4723>

From: "Joel Fernandes (Google)" <joel@joelfernandes.org>

Android needs to mremap large regions of memory during memory management
related operations. The mremap system call can be really slow if THP is
not enabled. The bottleneck is move_page_tables, which is copying each
pte at a time, and can be really slow across a large map. Turning on THP
may not be a viable option, and is not for us. This patch speeds up the
performance for non-THP system by copying at the PMD level when possible.

The speed up is an order of magnitude on x86 (~20x). On a 1GB mremap,
the mremap completion times drops from 3.4-3.6 milliseconds to 144-160
microseconds.

Before:
Total mremap time for 1GB data: 3521942 nanoseconds.
Total mremap time for 1GB data: 3449229 nanoseconds.
Total mremap time for 1GB data: 3488230 nanoseconds.

After:
Total mremap time for 1GB data: 150279 nanoseconds.
Total mremap time for 1GB data: 144665 nanoseconds.
Total mremap time for 1GB data: 158708 nanoseconds.

Incase THP is enabled, the optimization is mostly skipped except in
certain situations.

Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---

Note that since the bug fix in [1], we now have to flush the TLB every
PMD move. The above numbers were obtained on x86 with a flush done every
move. For arm64, I previously encountered performance issues doing a
flush everytime we move, however Will Deacon says [2] the performance
should be better now with recent release. Until we can evaluate arm64, I
am dropping the HAVE_MOVE_PMD config enable patch for ARM64 for now. It
can be added back once we finish the performance evaluation. Also of
note is that the speed up on arm64 with this patch but without the TLB
flush every PMD move is around 500x.

[1] https://bugs.chromium.org/p/project-zero/issues/detail?id=1695
[2] https://www.mail-archive.com/linuxppc-dev@lists.ozlabs.org/msg140837.html

 arch/Kconfig |  5 +++++
 mm/mremap.c  | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 67 insertions(+)

diff --git a/arch/Kconfig b/arch/Kconfig
index e1e540ffa979..b70c952ac838 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -535,6 +535,11 @@ config HAVE_IRQ_TIME_ACCOUNTING
 	  Archs need to ensure they use a high enough resolution clock to
 	  support irq time accounting and then call enable_sched_clock_irqtime().
 
+config HAVE_MOVE_PMD
+	bool
+	help
+	  Archs that select this are able to move page tables at the PMD level.
+
 config HAVE_ARCH_TRANSPARENT_HUGEPAGE
 	bool
 
diff --git a/mm/mremap.c b/mm/mremap.c
index 7c9ab747f19d..2591e512373a 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -191,6 +191,50 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 		drop_rmap_locks(vma);
 }
 
+static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
+		  unsigned long new_addr, unsigned long old_end,
+		  pmd_t *old_pmd, pmd_t *new_pmd)
+{
+	spinlock_t *old_ptl, *new_ptl;
+	struct mm_struct *mm = vma->vm_mm;
+	pmd_t pmd;
+
+	if ((old_addr & ~PMD_MASK) || (new_addr & ~PMD_MASK)
+	    || old_end - old_addr < PMD_SIZE)
+		return false;
+
+	/*
+	 * The destination pmd shouldn't be established, free_pgtables()
+	 * should have release it.
+	 */
+	if (WARN_ON(!pmd_none(*new_pmd)))
+		return false;
+
+	/*
+	 * We don't have to worry about the ordering of src and dst
+	 * ptlocks because exclusive mmap_sem prevents deadlock.
+	 */
+	old_ptl = pmd_lock(vma->vm_mm, old_pmd);
+	new_ptl = pmd_lockptr(mm, new_pmd);
+	if (new_ptl != old_ptl)
+		spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
+
+	/* Clear the pmd */
+	pmd = *old_pmd;
+	pmd_clear(old_pmd);
+
+	VM_BUG_ON(!pmd_none(*new_pmd));
+
+	/* Set the new pmd */
+	set_pmd_at(mm, new_addr, new_pmd, pmd);
+	flush_tlb_range(vma, old_addr, old_addr + PMD_SIZE);
+	if (new_ptl != old_ptl)
+		spin_unlock(new_ptl);
+	spin_unlock(old_ptl);
+
+	return true;
+}
+
 unsigned long move_page_tables(struct vm_area_struct *vma,
 		unsigned long old_addr, struct vm_area_struct *new_vma,
 		unsigned long new_addr, unsigned long len,
@@ -237,7 +281,25 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
 			split_huge_pmd(vma, old_pmd, old_addr);
 			if (pmd_trans_unstable(old_pmd))
 				continue;
+		} else if (extent == PMD_SIZE) {
+#ifdef CONFIG_HAVE_MOVE_PMD
+			/*
+			 * If the extent is PMD-sized, try to speed the move by
+			 * moving at the PMD level if possible.
+			 */
+			bool moved;
+
+			if (need_rmap_locks)
+				take_rmap_locks(vma);
+			moved = move_normal_pmd(vma, old_addr, new_addr,
+					old_end, old_pmd, new_pmd);
+			if (need_rmap_locks)
+				drop_rmap_locks(vma);
+			if (moved)
+				continue;
+#endif
 		}
+
 		if (pte_alloc(new_vma->vm_mm, new_pmd))
 			break;
 		next = (new_addr + PMD_SIZE) & PMD_MASK;
-- 
2.19.1.930.g4563a0d9d0-goog

From - Thu Nov 08 21:42:25 2018
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X-Mozilla-Keys:                                                                                 
Path: news.gmane.org!.POSTED!not-for-mail
From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.ports.riscv,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.kernel.arc,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH -next-akpm 1/3] mm: treewide: remove unused address argument
 from pte_alloc functions (v2)
Date: Thu,  8 Nov 2018 10:11:59 -0800
Lines: 1124
Approved: news@gmane.org
Message-ID: <20181108181201.88826-2-joelaf@google.com>
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Cc: linux-mips@linux-mips.org, Rich Felker <dalias@libc.org>,
 linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
 Peter Zijlstra <peterz@infradead.org>,
 Catalin Marinas <catalin.marinas@arm.com>,
 Dave Hansen <dave.hansen@linux.intel.com>, Will Deacon <will.deacon@arm.com>,
 Michal Hocko <mhocko@kernel.org>, linux-mm@kvack.org, lokeshgidra@google.com,
 "Joel Fernandes \(Google\)" <joel@joelfernandes.org>,
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To: linux-kernel@vger.kernel.org
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Archived-At: <http://permalink.gmane.org/gmane.linux.ports.riscv/1452>

From: "Joel Fernandes (Google)" <joel@joelfernandes.org>

This series speeds up mremap(2) syscall by copying page tables at the
PMD level even for non-THP systems. There is concern that the extra
'address' argument that mremap passes to pte_alloc may do something
subtle architecture related in the future that may make the scheme not
work.  Also we find that there is no point in passing the 'address' to
pte_alloc since its unused. So this patch therefore removes this
argument tree-wide resulting in a nice negative diff as well. Also
ensuring along the way that the enabled architectures do not do anything
funky with 'address' argument that goes unnoticed by the optimization.

Build and boot tested on x86-64. Build tested on arm64.

The changes were obtained by applying the following Coccinelle script.
(thanks Julia for answering all Coccinelle questions!).
Following fix ups were done manually:
* Removal of address argument from  pte_fragment_alloc
* Removal of pte_alloc_one_fast definitions from m68k and microblaze.

// Options: --include-headers --no-includes
// Note: I split the 'identifier fn' line, so if you are manually
// running it, please unsplit it so it runs for you.

virtual patch

@pte_alloc_func_def depends on patch exists@
identifier E2;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
type T2;
@@

 fn(...
- , T2 E2
 )
 { ... }

@pte_alloc_func_proto_noarg depends on patch exists@
type T1, T2, T3, T4;
identifier fn =~ "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

(
- T3 fn(T1, T2);
+ T3 fn(T1);
|
- T3 fn(T1, T2, T4);
+ T3 fn(T1, T2);
)

@pte_alloc_func_proto depends on patch exists@
identifier E1, E2, E4;
type T1, T2, T3, T4;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

(
- T3 fn(T1 E1, T2 E2);
+ T3 fn(T1 E1);
|
- T3 fn(T1 E1, T2 E2, T4 E4);
+ T3 fn(T1 E1, T2 E2);
)

@pte_alloc_func_call depends on patch exists@
expression E2;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

 fn(...
-,  E2
 )

@pte_alloc_macro depends on patch exists@
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
identifier a, b, c;
expression e;
position p;
@@

(
- #define fn(a, b, c) e
+ #define fn(a, b) e
|
- #define fn(a, b) e
+ #define fn(a) e
)

Suggested-by: Kirill A. Shutemov <kirill@shutemov.name>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>

---
 arch/alpha/include/asm/pgalloc.h             |  6 +++---
 arch/arc/include/asm/pgalloc.h               |  5 ++---
 arch/arm/include/asm/pgalloc.h               |  4 ++--
 arch/arm64/include/asm/pgalloc.h             |  4 ++--
 arch/hexagon/include/asm/pgalloc.h           |  6 ++----
 arch/ia64/include/asm/pgalloc.h              |  5 ++---
 arch/m68k/include/asm/mcf_pgalloc.h          |  8 ++------
 arch/m68k/include/asm/motorola_pgalloc.h     |  4 ++--
 arch/m68k/include/asm/sun3_pgalloc.h         |  6 ++----
 arch/microblaze/include/asm/pgalloc.h        | 19 ++-----------------
 arch/microblaze/mm/pgtable.c                 |  3 +--
 arch/mips/include/asm/pgalloc.h              |  6 ++----
 arch/nds32/include/asm/pgalloc.h             |  5 ++---
 arch/nios2/include/asm/pgalloc.h             |  6 ++----
 arch/openrisc/include/asm/pgalloc.h          |  5 ++---
 arch/openrisc/mm/ioremap.c                   |  3 +--
 arch/parisc/include/asm/pgalloc.h            |  4 ++--
 arch/powerpc/include/asm/book3s/32/pgalloc.h |  4 ++--
 arch/powerpc/include/asm/book3s/64/pgalloc.h | 12 +++++-------
 arch/powerpc/include/asm/nohash/32/pgalloc.h |  4 ++--
 arch/powerpc/include/asm/nohash/64/pgalloc.h |  6 ++----
 arch/powerpc/mm/pgtable-book3s64.c           |  2 +-
 arch/powerpc/mm/pgtable_32.c                 |  4 ++--
 arch/riscv/include/asm/pgalloc.h             |  6 ++----
 arch/s390/include/asm/pgalloc.h              |  4 ++--
 arch/sh/include/asm/pgalloc.h                |  6 ++----
 arch/sparc/include/asm/pgalloc_32.h          |  5 ++---
 arch/sparc/include/asm/pgalloc_64.h          |  6 ++----
 arch/sparc/mm/init_64.c                      |  6 ++----
 arch/sparc/mm/srmmu.c                        |  4 ++--
 arch/um/include/asm/pgalloc.h                |  4 ++--
 arch/um/kernel/mem.c                         |  4 ++--
 arch/unicore32/include/asm/pgalloc.h         |  4 ++--
 arch/x86/include/asm/pgalloc.h               |  4 ++--
 arch/x86/mm/pgtable.c                        |  4 ++--
 arch/xtensa/include/asm/pgalloc.h            |  8 +++-----
 include/linux/mm.h                           | 13 ++++++-------
 mm/huge_memory.c                             |  8 ++++----
 mm/kasan/kasan_init.c                        |  2 +-
 mm/memory.c                                  | 17 ++++++++---------
 mm/migrate.c                                 |  2 +-
 mm/mremap.c                                  |  2 +-
 mm/userfaultfd.c                             |  2 +-
 virt/kvm/arm/mmu.c                           |  2 +-
 44 files changed, 97 insertions(+), 147 deletions(-)

diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
index ab3e3a8638fb..02f9f91bb4f0 100644
--- a/arch/alpha/include/asm/pgalloc.h
+++ b/arch/alpha/include/asm/pgalloc.h
@@ -52,7 +52,7 @@ pmd_free(struct mm_struct *mm, pmd_t *pmd)
 }
 
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
 	return pte;
@@ -65,9 +65,9 @@ pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pte_alloc_one(struct mm_struct *mm)
 {
-	pte_t *pte = pte_alloc_one_kernel(mm, address);
+	pte_t *pte = pte_alloc_one_kernel(mm);
 	struct page *page;
 
 	if (!pte)
diff --git a/arch/arc/include/asm/pgalloc.h b/arch/arc/include/asm/pgalloc.h
index 3749234b7419..9c9b5a5ebf2e 100644
--- a/arch/arc/include/asm/pgalloc.h
+++ b/arch/arc/include/asm/pgalloc.h
@@ -90,8 +90,7 @@ static inline int __get_order_pte(void)
 	return get_order(PTRS_PER_PTE * sizeof(pte_t));
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -102,7 +101,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pte_alloc_one(struct mm_struct *mm)
 {
 	pgtable_t pte_pg;
 	struct page *page;
diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
index 2d7344f0e208..17ab72f0cc4e 100644
--- a/arch/arm/include/asm/pgalloc.h
+++ b/arch/arm/include/asm/pgalloc.h
@@ -81,7 +81,7 @@ static inline void clean_pte_table(pte_t *pte)
  *  +------------+
  */
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -93,7 +93,7 @@ pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h
index 2e05bcd944c8..52fa47c73bf0 100644
--- a/arch/arm64/include/asm/pgalloc.h
+++ b/arch/arm64/include/asm/pgalloc.h
@@ -91,13 +91,13 @@ extern pgd_t *pgd_alloc(struct mm_struct *mm);
 extern void pgd_free(struct mm_struct *mm, pgd_t *pgdp);
 
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(PGALLOC_GFP);
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/hexagon/include/asm/pgalloc.h b/arch/hexagon/include/asm/pgalloc.h
index eeebf862c46c..d36183887b60 100644
--- a/arch/hexagon/include/asm/pgalloc.h
+++ b/arch/hexagon/include/asm/pgalloc.h
@@ -59,8 +59,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long) pgd);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-					 unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
@@ -75,8 +74,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 }
 
 /* _kernel variant gets to use a different allocator */
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	gfp_t flags =  GFP_KERNEL | __GFP_ZERO;
 	return (pte_t *) __get_free_page(flags);
diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
index 3ee5362f2661..c9e481023c25 100644
--- a/arch/ia64/include/asm/pgalloc.h
+++ b/arch/ia64/include/asm/pgalloc.h
@@ -83,7 +83,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
 	pmd_val(*pmd_entry) = __pa(pte);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	void *pg;
@@ -99,8 +99,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
 	return page;
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long addr)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return quicklist_alloc(0, GFP_KERNEL, NULL);
 }
diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h
index 12fe700632f4..4399d712f6db 100644
--- a/arch/m68k/include/asm/mcf_pgalloc.h
+++ b/arch/m68k/include/asm/mcf_pgalloc.h
@@ -12,8 +12,7 @@ extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 
 extern const char bad_pmd_string[];
 
-extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	unsigned long page = __get_free_page(GFP_DMA);
 
@@ -32,8 +31,6 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address)
 #define pmd_alloc_one_fast(mm, address) ({ BUG(); ((pmd_t *)1); })
 #define pmd_alloc_one(mm, address)      ({ BUG(); ((pmd_t *)2); })
 
-#define pte_alloc_one_fast(mm, addr) pte_alloc_one(mm, addr)
-
 #define pmd_populate(mm, pmd, page) (pmd_val(*pmd) = \
 	(unsigned long)(page_address(page)))
 
@@ -50,8 +47,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
 
 #define __pmd_free_tlb(tlb, pmd, address) do { } while (0)
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page = alloc_pages(GFP_DMA, 0);
 	pte_t *pte;
diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h
index 7859a86319cf..d04d9ba9b976 100644
--- a/arch/m68k/include/asm/motorola_pgalloc.h
+++ b/arch/m68k/include/asm/motorola_pgalloc.h
@@ -8,7 +8,7 @@
 extern pmd_t *get_pointer_table(void);
 extern int free_pointer_table(pmd_t *);
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -28,7 +28,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 	free_page((unsigned long) pte);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	pte_t *pte;
diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h
index 11485d38de4e..1456c5eecbd9 100644
--- a/arch/m68k/include/asm/sun3_pgalloc.h
+++ b/arch/m68k/include/asm/sun3_pgalloc.h
@@ -35,8 +35,7 @@ do {							\
 	tlb_remove_page((tlb), pte);			\
 } while (0)
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	unsigned long page = __get_free_page(GFP_KERNEL);
 
@@ -47,8 +46,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return (pte_t *) (page);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-					unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
         struct page *page = alloc_pages(GFP_KERNEL, 0);
 
diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
index 7c89390c0c13..f4cc9ffc449e 100644
--- a/arch/microblaze/include/asm/pgalloc.h
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -108,10 +108,9 @@ static inline void free_pgd_slow(pgd_t *pgd)
 #define pmd_alloc_one_fast(mm, address)	({ BUG(); ((pmd_t *)1); })
 #define pmd_alloc_one(mm, address)	({ BUG(); ((pmd_t *)2); })
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-		unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *ptepage;
 
@@ -132,20 +131,6 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 	return ptepage;
 }
 
-static inline pte_t *pte_alloc_one_fast(struct mm_struct *mm,
-		unsigned long address)
-{
-	unsigned long *ret;
-
-	ret = pte_quicklist;
-	if (ret != NULL) {
-		pte_quicklist = (unsigned long *)(*ret);
-		ret[0] = 0;
-		pgtable_cache_size--;
-	}
-	return (pte_t *)ret;
-}
-
 static inline void pte_free_fast(pte_t *pte)
 {
 	*(unsigned long **)pte = pte_quicklist;
diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c
index 7f525962cdfa..c2ce1e42b888 100644
--- a/arch/microblaze/mm/pgtable.c
+++ b/arch/microblaze/mm/pgtable.c
@@ -235,8 +235,7 @@ unsigned long iopa(unsigned long addr)
 	return pa;
 }
 
-__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-		unsigned long address)
+__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 	if (mem_init_done) {
diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
index 39b9f311c4ef..27808d9461f4 100644
--- a/arch/mips/include/asm/pgalloc.h
+++ b/arch/mips/include/asm/pgalloc.h
@@ -50,14 +50,12 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_pages((unsigned long)pgd, PGD_ORDER);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, PTE_ORDER);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/nds32/include/asm/pgalloc.h b/arch/nds32/include/asm/pgalloc.h
index 27448869131a..3c5fee5b5759 100644
--- a/arch/nds32/include/asm/pgalloc.h
+++ b/arch/nds32/include/asm/pgalloc.h
@@ -22,8 +22,7 @@ extern void pgd_free(struct mm_struct *mm, pgd_t * pgd);
 
 #define check_pgt_cache()		do { } while (0)
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long addr)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -34,7 +33,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return pte;
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	pgtable_t pte;
 
diff --git a/arch/nios2/include/asm/pgalloc.h b/arch/nios2/include/asm/pgalloc.h
index bb47d08c8ef7..3a149ead1207 100644
--- a/arch/nios2/include/asm/pgalloc.h
+++ b/arch/nios2/include/asm/pgalloc.h
@@ -37,8 +37,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_pages((unsigned long)pgd, PGD_ORDER);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -47,8 +46,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return pte;
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/openrisc/include/asm/pgalloc.h b/arch/openrisc/include/asm/pgalloc.h
index 8999b9226512..149c82ee4b8b 100644
--- a/arch/openrisc/include/asm/pgalloc.h
+++ b/arch/openrisc/include/asm/pgalloc.h
@@ -70,10 +70,9 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long)pgd);
 }
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-					 unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 	pte = alloc_pages(GFP_KERNEL, 0);
diff --git a/arch/openrisc/mm/ioremap.c b/arch/openrisc/mm/ioremap.c
index c9697529b3f0..270d1c9bc0d6 100644
--- a/arch/openrisc/mm/ioremap.c
+++ b/arch/openrisc/mm/ioremap.c
@@ -118,8 +118,7 @@ EXPORT_SYMBOL(iounmap);
  * the memblock infrastructure.
  */
 
-pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm,
-					 unsigned long address)
+pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index cf13275f7c6d..d05c678c77c4 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -122,7 +122,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
 #define pmd_pgtable(pmd) pmd_page(pmd)
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page = alloc_page(GFP_KERNEL|__GFP_ZERO);
 	if (!page)
@@ -135,7 +135,7 @@ pte_alloc_one(struct mm_struct *mm, unsigned long address)
 }
 
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
 	return pte;
diff --git a/arch/powerpc/include/asm/book3s/32/pgalloc.h b/arch/powerpc/include/asm/book3s/32/pgalloc.h
index 82e44b1a00ae..af9e13555d95 100644
--- a/arch/powerpc/include/asm/book3s/32/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/32/pgalloc.h
@@ -82,8 +82,8 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp,
 #define pmd_pgtable(pmd) pmd_page(pmd)
 #endif
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
-extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
+extern pgtable_t pte_alloc_one(struct mm_struct *mm);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h
index 391ed2c3b697..8f1d92e99fe5 100644
--- a/arch/powerpc/include/asm/book3s/64/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h
@@ -42,7 +42,7 @@ extern struct kmem_cache *pgtable_cache[];
 			pgtable_cache[(shift) - 1];	\
 		})
 
-extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int);
+extern pte_t *pte_fragment_alloc(struct mm_struct *, int);
 extern pmd_t *pmd_fragment_alloc(struct mm_struct *, unsigned long);
 extern void pte_fragment_free(unsigned long *, int);
 extern void pmd_fragment_free(unsigned long *);
@@ -192,16 +192,14 @@ static inline pgtable_t pmd_pgtable(pmd_t pmd)
 	return (pgtable_t)pmd_page_vaddr(pmd);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
-	return (pte_t *)pte_fragment_alloc(mm, address, 1);
+	return (pte_t *)pte_fragment_alloc(mm, 1);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-				      unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
-	return (pgtable_t)pte_fragment_alloc(mm, address, 0);
+	return (pgtable_t)pte_fragment_alloc(mm, 0);
 }
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
diff --git a/arch/powerpc/include/asm/nohash/32/pgalloc.h b/arch/powerpc/include/asm/nohash/32/pgalloc.h
index 8825953c225b..16623f53f0d4 100644
--- a/arch/powerpc/include/asm/nohash/32/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/32/pgalloc.h
@@ -83,8 +83,8 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp,
 #define pmd_pgtable(pmd) pmd_page(pmd)
 #endif
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
-extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
+extern pgtable_t pte_alloc_one(struct mm_struct *mm);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
diff --git a/arch/powerpc/include/asm/nohash/64/pgalloc.h b/arch/powerpc/include/asm/nohash/64/pgalloc.h
index e2d62d033708..2e7e0230edf4 100644
--- a/arch/powerpc/include/asm/nohash/64/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/64/pgalloc.h
@@ -96,14 +96,12 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 }
 
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-				      unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	pte_t *pte;
diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c
index 9f93c9f985c5..6f9d434b0a4c 100644
--- a/arch/powerpc/mm/pgtable-book3s64.c
+++ b/arch/powerpc/mm/pgtable-book3s64.c
@@ -384,7 +384,7 @@ static pte_t *__alloc_for_ptecache(struct mm_struct *mm, int kernel)
 	return (pte_t *)ret;
 }
 
-pte_t *pte_fragment_alloc(struct mm_struct *mm, unsigned long vmaddr, int kernel)
+pte_t *pte_fragment_alloc(struct mm_struct *mm, int kernel)
 {
 	pte_t *pte;
 
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index bda3c6f1bd32..1d8e2d98db98 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -43,7 +43,7 @@ EXPORT_SYMBOL(ioremap_bot);	/* aka VMALLOC_END */
 
 extern char etext[], _stext[], _sinittext[], _einittext[];
 
-__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+__ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -57,7 +57,7 @@ __ref pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 	return pte;
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *ptepage;
 
diff --git a/arch/riscv/include/asm/pgalloc.h b/arch/riscv/include/asm/pgalloc.h
index a79ed5faff3a..94043cf83c90 100644
--- a/arch/riscv/include/asm/pgalloc.h
+++ b/arch/riscv/include/asm/pgalloc.h
@@ -82,15 +82,13 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 
 #endif /* __PAGETABLE_PMD_FOLDED */
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(
 		GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_ZERO);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
+static inline struct page *pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index 5ee733720a57..bccb8f4a63e2 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -139,8 +139,8 @@ static inline void pmd_populate(struct mm_struct *mm,
 /*
  * page table entry allocation/free routines.
  */
-#define pte_alloc_one_kernel(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
-#define pte_alloc_one(mm, vmaddr) ((pte_t *) page_table_alloc(mm))
+#define pte_alloc_one_kernel(mm) ((pte_t *)page_table_alloc(mm))
+#define pte_alloc_one(mm) ((pte_t *)page_table_alloc(mm))
 
 #define pte_free_kernel(mm, pte) page_table_free(mm, (unsigned long *) pte)
 #define pte_free(mm, pte) page_table_free(mm, (unsigned long *) pte)
diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h
index ed053a359ab7..8ad73cb31121 100644
--- a/arch/sh/include/asm/pgalloc.h
+++ b/arch/sh/include/asm/pgalloc.h
@@ -32,14 +32,12 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
 /*
  * Allocate and free page tables.
  */
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return quicklist_alloc(QUICK_PT, GFP_KERNEL, NULL);
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-					unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page;
 	void *pg;
diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
index 90459481c6c7..282be50a4adf 100644
--- a/arch/sparc/include/asm/pgalloc_32.h
+++ b/arch/sparc/include/asm/pgalloc_32.h
@@ -58,10 +58,9 @@ void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
 void pmd_set(pmd_t *pmdp, pte_t *ptep);
 #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
+pgtable_t pte_alloc_one(struct mm_struct *mm);
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					  unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
 }
diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
index 874632f34f62..48abccba4991 100644
--- a/arch/sparc/include/asm/pgalloc_64.h
+++ b/arch/sparc/include/asm/pgalloc_64.h
@@ -60,10 +60,8 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 	kmem_cache_free(pgtable_cache, pmd);
 }
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-			    unsigned long address);
-pgtable_t pte_alloc_one(struct mm_struct *mm,
-			unsigned long address);
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
+pgtable_t pte_alloc_one(struct mm_struct *mm);
 void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
 void pte_free(struct mm_struct *mm, pgtable_t ptepage);
 
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 3c8aac21f426..b4221d3727d0 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -2925,8 +2925,7 @@ void __flush_tlb_all(void)
 			     : : "r" (pstate));
 }
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-			    unsigned long address)
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO);
 	pte_t *pte = NULL;
@@ -2937,8 +2936,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return pte;
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm,
-			unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO);
 	if (!page)
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index a6142c5abf61..b609362e846f 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -364,12 +364,12 @@ pgd_t *get_pgd_fast(void)
  * Alignments up to the page size are the same for physical and virtual
  * addresses of the nocache area.
  */
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	unsigned long pte;
 	struct page *page;
 
-	if ((pte = (unsigned long)pte_alloc_one_kernel(mm, address)) == 0)
+	if ((pte = (unsigned long)pte_alloc_one_kernel(mm)) == 0)
 		return NULL;
 	page = pfn_to_page(__nocache_pa(pte) >> PAGE_SHIFT);
 	if (!pgtable_page_ctor(page)) {
diff --git a/arch/um/include/asm/pgalloc.h b/arch/um/include/asm/pgalloc.h
index bf90b2aa2002..99eb5682792a 100644
--- a/arch/um/include/asm/pgalloc.h
+++ b/arch/um/include/asm/pgalloc.h
@@ -25,8 +25,8 @@
 extern pgd_t *pgd_alloc(struct mm_struct *);
 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
-extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *);
+extern pgtable_t pte_alloc_one(struct mm_struct *);
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 1067469ba2ea..e494c7719b24 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -199,7 +199,7 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long) pgd);
 }
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -207,7 +207,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 	return pte;
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/unicore32/include/asm/pgalloc.h b/arch/unicore32/include/asm/pgalloc.h
index f0fdb268f8f2..7cceabecf4e3 100644
--- a/arch/unicore32/include/asm/pgalloc.h
+++ b/arch/unicore32/include/asm/pgalloc.h
@@ -34,7 +34,7 @@ extern void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd);
  * Allocate one PTE table.
  */
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *pte;
 
@@ -46,7 +46,7 @@ pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 }
 
 static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
index ec7f43327033..f6861b700f5e 100644
--- a/arch/x86/include/asm/pgalloc.h
+++ b/arch/x86/include/asm/pgalloc.h
@@ -47,8 +47,8 @@ extern gfp_t __userpte_alloc_gfp;
 extern pgd_t *pgd_alloc(struct mm_struct *);
 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
-extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *);
+extern pgtable_t pte_alloc_one(struct mm_struct *);
 
 /* Should really implement gc for free page table pages. This could be
    done with a reference count in struct page. */
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 59274e2c1ac4..27f63a74b45d 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -23,12 +23,12 @@ EXPORT_SYMBOL(physical_mask);
 
 gfp_t __userpte_alloc_gfp = PGALLOC_GFP | PGALLOC_USER_GFP;
 
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	return (pte_t *)__get_free_page(PGALLOC_GFP & ~__GFP_ACCOUNT);
 }
 
-pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	struct page *pte;
 
diff --git a/arch/xtensa/include/asm/pgalloc.h b/arch/xtensa/include/asm/pgalloc.h
index 1065bc8bcae5..b3b388ff2f01 100644
--- a/arch/xtensa/include/asm/pgalloc.h
+++ b/arch/xtensa/include/asm/pgalloc.h
@@ -38,8 +38,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long)pgd);
 }
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-					 unsigned long address)
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
 	pte_t *ptep;
 	int i;
@@ -52,13 +51,12 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 	return ptep;
 }
 
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
-					unsigned long addr)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
 	pte_t *pte;
 	struct page *page;
 
-	pte = pte_alloc_one_kernel(mm, addr);
+	pte = pte_alloc_one_kernel(mm);
 	if (!pte)
 		return NULL;
 	page = virt_to_page(pte);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 5411de93a363..f0d4f8108f22 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1817,8 +1817,8 @@ static inline void mm_inc_nr_ptes(struct mm_struct *mm) {}
 static inline void mm_dec_nr_ptes(struct mm_struct *mm) {}
 #endif
 
-int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address);
-int __pte_alloc_kernel(pmd_t *pmd, unsigned long address);
+int __pte_alloc(struct mm_struct *mm, pmd_t *pmd);
+int __pte_alloc_kernel(pmd_t *pmd);
 
 /*
  * The following ifdef needed to get the 4level-fixup.h header to work.
@@ -1956,18 +1956,17 @@ static inline void pgtable_page_dtor(struct page *page)
 	pte_unmap(pte);					\
 } while (0)
 
-#define pte_alloc(mm, pmd, address)			\
-	(unlikely(pmd_none(*(pmd))) && __pte_alloc(mm, pmd, address))
+#define pte_alloc(mm, pmd) (unlikely(pmd_none(*(pmd))) && __pte_alloc(mm, pmd))
 
 #define pte_alloc_map(mm, pmd, address)			\
-	(pte_alloc(mm, pmd, address) ? NULL : pte_offset_map(pmd, address))
+	(pte_alloc(mm, pmd) ? NULL : pte_offset_map(pmd, address))
 
 #define pte_alloc_map_lock(mm, pmd, address, ptlp)	\
-	(pte_alloc(mm, pmd, address) ?			\
+	(pte_alloc(mm, pmd) ?			\
 		 NULL : pte_offset_map_lock(mm, pmd, address, ptlp))
 
 #define pte_alloc_kernel(pmd, address)			\
-	((unlikely(pmd_none(*(pmd))) && __pte_alloc_kernel(pmd, address))? \
+	((unlikely(pmd_none(*(pmd))) && __pte_alloc_kernel(pmd))? \
 		NULL: pte_offset_kernel(pmd, address))
 
 #if USE_SPLIT_PMD_PTLOCKS
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 55478ab3c83b..29ab88b04d3b 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -558,7 +558,7 @@ static vm_fault_t __do_huge_pmd_anonymous_page(struct vm_fault *vmf,
 		return VM_FAULT_FALLBACK;
 	}
 
-	pgtable = pte_alloc_one(vma->vm_mm, haddr);
+	pgtable = pte_alloc_one(vma->vm_mm);
 	if (unlikely(!pgtable)) {
 		ret = VM_FAULT_OOM;
 		goto release;
@@ -702,7 +702,7 @@ vm_fault_t do_huge_pmd_anonymous_page(struct vm_fault *vmf)
 		struct page *zero_page;
 		bool set;
 		vm_fault_t ret;
-		pgtable = pte_alloc_one(vma->vm_mm, haddr);
+		pgtable = pte_alloc_one(vma->vm_mm);
 		if (unlikely(!pgtable))
 			return VM_FAULT_OOM;
 		zero_page = mm_get_huge_zero_page(vma->vm_mm);
@@ -791,7 +791,7 @@ vm_fault_t vmf_insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr,
 		return VM_FAULT_SIGBUS;
 
 	if (arch_needs_pgtable_deposit()) {
-		pgtable = pte_alloc_one(vma->vm_mm, addr);
+		pgtable = pte_alloc_one(vma->vm_mm);
 		if (!pgtable)
 			return VM_FAULT_OOM;
 	}
@@ -927,7 +927,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	if (!vma_is_anonymous(vma))
 		return 0;
 
-	pgtable = pte_alloc_one(dst_mm, addr);
+	pgtable = pte_alloc_one(dst_mm);
 	if (unlikely(!pgtable))
 		goto out;
 
diff --git a/mm/kasan/kasan_init.c b/mm/kasan/kasan_init.c
index c7550eb65922..5edb8b29a827 100644
--- a/mm/kasan/kasan_init.c
+++ b/mm/kasan/kasan_init.c
@@ -120,7 +120,7 @@ static int __ref zero_pmd_populate(pud_t *pud, unsigned long addr,
 			pte_t *p;
 
 			if (slab_is_available())
-				p = pte_alloc_one_kernel(&init_mm, addr);
+				p = pte_alloc_one_kernel(&init_mm);
 			else
 				p = early_alloc(PAGE_SIZE, NUMA_NO_NODE);
 			if (!p)
diff --git a/mm/memory.c b/mm/memory.c
index 15c417e8e31d..1f7e6eef6ae4 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -400,10 +400,10 @@ void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *vma,
 	}
 }
 
-int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
+int __pte_alloc(struct mm_struct *mm, pmd_t *pmd)
 {
 	spinlock_t *ptl;
-	pgtable_t new = pte_alloc_one(mm, address);
+	pgtable_t new = pte_alloc_one(mm);
 	if (!new)
 		return -ENOMEM;
 
@@ -434,9 +434,9 @@ int __pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
 	return 0;
 }
 
-int __pte_alloc_kernel(pmd_t *pmd, unsigned long address)
+int __pte_alloc_kernel(pmd_t *pmd)
 {
-	pte_t *new = pte_alloc_one_kernel(&init_mm, address);
+	pte_t *new = pte_alloc_one_kernel(&init_mm);
 	if (!new)
 		return -ENOMEM;
 
@@ -2895,7 +2895,7 @@ static vm_fault_t do_anonymous_page(struct vm_fault *vmf)
 	 *
 	 * Here we only have down_read(mmap_sem).
 	 */
-	if (pte_alloc(vma->vm_mm, vmf->pmd, vmf->address))
+	if (pte_alloc(vma->vm_mm, vmf->pmd))
 		return VM_FAULT_OOM;
 
 	/* See the comment in pte_alloc_one_map() */
@@ -3042,7 +3042,7 @@ static vm_fault_t pte_alloc_one_map(struct vm_fault *vmf)
 		pmd_populate(vma->vm_mm, vmf->pmd, vmf->prealloc_pte);
 		spin_unlock(vmf->ptl);
 		vmf->prealloc_pte = NULL;
-	} else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd, vmf->address))) {
+	} else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd))) {
 		return VM_FAULT_OOM;
 	}
 map_pte:
@@ -3121,7 +3121,7 @@ static vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page)
 	 * related to pte entry. Use the preallocated table for that.
 	 */
 	if (arch_needs_pgtable_deposit() && !vmf->prealloc_pte) {
-		vmf->prealloc_pte = pte_alloc_one(vma->vm_mm, vmf->address);
+		vmf->prealloc_pte = pte_alloc_one(vma->vm_mm);
 		if (!vmf->prealloc_pte)
 			return VM_FAULT_OOM;
 		smp_wmb(); /* See comment in __pte_alloc() */
@@ -3359,8 +3359,7 @@ static vm_fault_t do_fault_around(struct vm_fault *vmf)
 			start_pgoff + nr_pages - 1);
 
 	if (pmd_none(*vmf->pmd)) {
-		vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm,
-						  vmf->address);
+		vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm);
 		if (!vmf->prealloc_pte)
 			goto out;
 		smp_wmb(); /* See comment in __pte_alloc() */
diff --git a/mm/migrate.c b/mm/migrate.c
index f7e4bfdc13b7..1777a9327dbf 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -2599,7 +2599,7 @@ static void migrate_vma_insert_page(struct migrate_vma *migrate,
 	 *
 	 * Here we only have down_read(mmap_sem).
 	 */
-	if (pte_alloc(mm, pmdp, addr))
+	if (pte_alloc(mm, pmdp))
 		goto abort;
 
 	/* See the comment in pte_alloc_one_map() */
diff --git a/mm/mremap.c b/mm/mremap.c
index 7f9f9180e401..7c9ab747f19d 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -238,7 +238,7 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
 			if (pmd_trans_unstable(old_pmd))
 				continue;
 		}
-		if (pte_alloc(new_vma->vm_mm, new_pmd, new_addr))
+		if (pte_alloc(new_vma->vm_mm, new_pmd))
 			break;
 		next = (new_addr + PMD_SIZE) & PMD_MASK;
 		if (extent > next - new_addr)
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 5029f241908f..f05c8bc38ca5 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -513,7 +513,7 @@ static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,
 			break;
 		}
 		if (unlikely(pmd_none(dst_pmdval)) &&
-		    unlikely(__pte_alloc(dst_mm, dst_pmd, dst_addr))) {
+		    unlikely(__pte_alloc(dst_mm, dst_pmd))) {
 			err = -ENOMEM;
 			break;
 		}
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index 5eca48bdb1a6..0a36b1708b76 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -628,7 +628,7 @@ static int create_hyp_pmd_mappings(pud_t *pud, unsigned long start,
 		BUG_ON(pmd_sect(*pmd));
 
 		if (pmd_none(*pmd)) {
-			pte = pte_alloc_one_kernel(NULL, addr);
+			pte = pte_alloc_one_kernel(NULL);
 			if (!pte) {
 				kvm_err("Cannot allocate Hyp pte\n");
 				return -ENOMEM;
-- 
2.19.1.930.g4563a0d9d0-goog

From - Thu Nov 08 21:42:25 2018
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From: Joel Fernandes <joel@joelfernandes.org>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.ports.ia64,gmane.linux.ports.sh.devel,gmane.linux.kernel.mm,gmane.linux.ports.riscv,gmane.linux.ports.sparc,gmane.linux.ports.hexagon,gmane.comp.emulators.kvm.arm.devel,gmane.linux.ports.parisc,gmane.linux.ports.alpha,gmane.linux.ports.ppc64.devel
Subject: [PATCH -next-akpm 3/3] mm: select HAVE_MOVE_PMD in x86 for faster
 mremap
Date: Thu,  8 Nov 2018 10:12:01 -0800
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From: "Joel Fernandes (Google)" <joel@joelfernandes.org>

Moving page-tables at the PMD-level on x86 is known to be safe. Enable
this option so that we can do fast mremap when possible.

Suggested-by: Kirill A. Shutemov <kirill@shutemov.name>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 605bec0c228f..05f3667de0d2 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -173,6 +173,7 @@ config X86
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_MIXED_BREAKPOINTS_REGS
 	select HAVE_MOD_ARCH_SPECIFIC
+	select HAVE_MOVE_PMD
 	select HAVE_NMI
 	select HAVE_OPROFILE
 	select HAVE_OPTPROBES
-- 
2.19.1.930.g4563a0d9d0-goog

